001B00 EST profiling of resistant and susceptible Hevea infected by Microcyclus uleiDominique GarciaCIRAD, BIO/UMR-AGAP/EGV, Avenue d'Agropolis - TA A-96/0334398 MontpellierFRA1 aut.6 aut.Nicolas CarelsUniversidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.Daniela Martins KoopUniversidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.Leandro Arauj De SousaUniversidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.Sizenando José De Andrade JuniorUniversidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.Valerie Pujade-RenaudCIRAD, BIO/UMR-AGAP/EGV, Avenue d'Agropolis - TA A-96/0334398 MontpellierFRA1 aut.6 aut.Carlos Raimundo Reis MattosPlantações Michelin da Bahia, Cx Postal 2, CEP 45435-000 ItuberáBahiaBRA7 aut.J Lio Cezar De Mattos CascardoUniversidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.11-05016332011PASCAL 11-0501633 INISTPascal:11-0501633000E250885-5765Physiol. mol. plant pathol.Physiological and molecular plant pathologyHevea brasiliensisInfectionMicrocyclus uleiPlant leafPlant pathologySensitivity resistanceSouth AmericaSuppression subtractive hybridizationSensibilité résistanceInfectionFeuille végétalHybridation suppressive soustractivePhytopathologieHevea brasiliensisMicrocyclus uleiAmérique du Sud
In this report, we assess by suppression subtractive hybridization (SSH) the biological process of the South American leaf blight (SALB) that is an important disease of rubber tree caused by Microcyclus ulei (P. Hem.) v. Arx. Leaves from MDF180 (a partially resistant cultivar from Peruvian origin) and PB314 (a susceptible cultivar) were inoculated with M. ulei. Leaf fragments were collected from 6 h post-infection (hpi) to 58 days post-infection (dpi) and five cDNA libraries enriched for genes induced by M. ulei in order to identify up-regulated genes at the different stages of the host-parasite interaction. We sequenced 8027 expressed sequence tags (EST). After control of their quality, trimming and assembling, we obtained 1165 singlets and 458 contigs. The EST redundancy within each SSH library varied from 23% to 87%. Based on sequence similarity 49% of the sequences could be assigned to functional categories, whereas 21% corresponded to unknown function and 30% did not show any significant similarity with other sequences. The profile of gene expression was different for each library and gave a comprehensive picture of the transcriptome dynamics of rubber tree in response to M. ulei throughout the infection process. Most of the ESTs described in this study (80%) are specific to leaf tissues since they did not show any homology with ESTs previously identified in latex transcriptome. The occurrence of ESTs whose functional annotation was related to "stress" or "defence" was compared between libraries and their specific function is discussed in relation to the corresponding stage of leaf lesions and to histological observations. As far as we known, this is the first report on ESTs from Hevea brasiliensis collected during a biotic stress. It provides a significant contribution to the understanding of the molecular mechanism of the resistance and the susceptibility to South American leaf blight and it represents a new molecular resource for the development of polymorphic markers and marker-assisted selection.
0885-5765PMPPEZPhysiol. mol. plant pathol.762EST profiling of resistant and susceptible Hevea infected by Microcyclus uleiGARCIA (Dominique)CARELS (Nicolas)KOOP (Daniela Martins)DE SOUSA (Leandro Araujó)DE ANDRADE JUNIOR (Sizenando José)PUJADE-RENAUD (Valerie)MATTOS (Carlos Raimundo Reis)DE MATTOS CASCARDO (Júlio Cezar)CIRAD, BIO/UMR-AGAP/EGV, Avenue d'Agropolis - TA A-96/0334398 MontpellierFRA1 aut.6 aut.Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, SalobrinhoBABRA2 aut.3 aut.4 aut.5 aut.8 aut.Plantações Michelin da Bahia, Cx Postal 2, CEP 45435-000 ItuberáBahiaBRA7 aut.126-1362011ENGINIST153563540005055825400900000© 2011 INIST-CNRS. All rights reserved.28 ref.11-0501633PAPhysiological and molecular plant pathologyGBRIn this report, we assess by suppression subtractive hybridization (SSH) the biological process of the South American leaf blight (SALB) that is an important disease of rubber tree caused by Microcyclus ulei (P. Hem.) v. Arx. Leaves from MDF180 (a partially resistant cultivar from Peruvian origin) and PB314 (a susceptible cultivar) were inoculated with M. ulei. Leaf fragments were collected from 6 h post-infection (hpi) to 58 days post-infection (dpi) and five cDNA libraries enriched for genes induced by M. ulei in order to identify up-regulated genes at the different stages of the host-parasite interaction. We sequenced 8027 expressed sequence tags (EST). After control of their quality, trimming and assembling, we obtained 1165 singlets and 458 contigs. The EST redundancy within each SSH library varied from 23% to 87%. Based on sequence similarity 49% of the sequences could be assigned to functional categories, whereas 21% corresponded to unknown function and 30% did not show any significant similarity with other sequences. The profile of gene expression was different for each library and gave a comprehensive picture of the transcriptome dynamics of rubber tree in response to M. ulei throughout the infection process. Most of the ESTs described in this study (80%) are specific to leaf tissues since they did not show any homology with ESTs previously identified in latex transcriptome. The occurrence of ESTs whose functional annotation was related to "stress" or "defence" was compared between libraries and their specific function is discussed in relation to the corresponding stage of leaf lesions and to histological observations. As far as we known, this is the first report on ESTs from Hevea brasiliensis collected during a biotic stress. It provides a significant contribution to the understanding of the molecular mechanism of the resistance and the susceptibility to South American leaf blight and it represents a new molecular resource for the development of polymorphic markers and marker-assisted selection.002A34Sensibilité résistance01Sensitivity resistance01Sensibilidad resistencia01Infection02Infection02Infección02Feuille végétal03Plant leaf03Hoja vegetal03Hybridation suppressive soustractive04Suppression subtractive hybridization04Hibridación supresora sustractiva04Phytopathologie05Plant pathology05Fitopatología05Hevea brasiliensisNS10Hevea brasiliensisNS10Hevea brasiliensisNS10Microcyclus uleiNS11Microcyclus uleiNS11Microcyclus uleiNS11Amérique du SudNG20South AmericaNG20America del surNG20EuphorbiaceaeNSEuphorbiaceaeNSEuphorbiaceaeNSDicotyledonesNSDicotyledonesNSDicotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSAscomycotaNSAscomycotaNSAscomycotaNSFungiNSFungiNSFungiNSAmériqueNGAmericaNGAmericaNGArbre forestier feuillu31Hardwood forest tree31Arbol forestal frondoso31Plante à latex32Laticiferous plant32Planta de latex32Appareil végétatif33Vegetative apparatus33Sistema vegetativo33Hybridation moléculaire34Molecular hybridization34Hibridación molecular34346OTOOTOPASCAL 11-0501633 INISTEST profiling of resistant and susceptible Hevea infected by Microcyclus uleiGARCIA (Dominique); CARELS (Nicolas); KOOP (Daniela Martins); DE SOUSA (Leandro Araujó); DE ANDRADE JUNIOR (Sizenando José); PUJADE-RENAUD (Valerie); MATTOS (Carlos Raimundo Reis); DE MATTOS CASCARDO (Júlio Cezar)CIRAD, BIO/UMR-AGAP/EGV, Avenue d'Agropolis - TA A-96/03/34398 Montpellier/France (1 aut., 6 aut.); Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas, Rod Ilhéus-Itabuna, Km 16, Salobrinho/BA/Brésil (2 aut., 3 aut., 4 aut., 5 aut., 8 aut.); Plantações Michelin da Bahia, Cx Postal 2, CEP 45435-000 Ituberá/Bahia/Brésil (7 aut.)
Publication en série; Niveau analytique
Physiological and molecular plant pathology; ISSN 0885-5765; Coden PMPPEZ; Royaume-Uni; Da. 2011; Vol. 76; No. 2; Pp. 126-136; Bibl. 28 ref.AnglaisIn this report, we assess by suppression subtractive hybridization (SSH) the biological process of the South American leaf blight (SALB) that is an important disease of rubber tree caused by Microcyclus ulei (P. Hem.) v. Arx. Leaves from MDF180 (a partially resistant cultivar from Peruvian origin) and PB314 (a susceptible cultivar) were inoculated with M. ulei. Leaf fragments were collected from 6 h post-infection (hpi) to 58 days post-infection (dpi) and five cDNA libraries enriched for genes induced by M. ulei in order to identify up-regulated genes at the different stages of the host-parasite interaction. We sequenced 8027 expressed sequence tags (EST). After control of their quality, trimming and assembling, we obtained 1165 singlets and 458 contigs. The EST redundancy within each SSH library varied from 23% to 87%. Based on sequence similarity 49% of the sequences could be assigned to functional categories, whereas 21% corresponded to unknown function and 30% did not show any significant similarity with other sequences. The profile of gene expression was different for each library and gave a comprehensive picture of the transcriptome dynamics of rubber tree in response to M. ulei throughout the infection process. Most of the ESTs described in this study (80%) are specific to leaf tissues since they did not show any homology with ESTs previously identified in latex transcriptome. The occurrence of ESTs whose functional annotation was related to "stress" or "defence" was compared between libraries and their specific function is discussed in relation to the corresponding stage of leaf lesions and to histological observations. As far as we known, this is the first report on ESTs from Hevea brasiliensis collected during a biotic stress. It provides a significant contribution to the understanding of the molecular mechanism of the resistance and the susceptibility to South American leaf blight and it represents a new molecular resource for the development of polymorphic markers and marker-assisted selection.002A34Sensibilité résistance; Infection; Feuille végétal; Hybridation suppressive soustractive; Phytopathologie; Hevea brasiliensis; Microcyclus ulei; Amérique du SudEuphorbiaceae; Dicotyledones; Angiospermae; Spermatophyta; Ascomycota; Fungi; Amérique; Arbre forestier feuillu; Plante à latex; Appareil végétatif; Hybridation moléculaireSensitivity resistance; Infection; Plant leaf; Suppression subtractive hybridization; Plant pathology; Hevea brasiliensis; Microcyclus ulei; South AmericaEuphorbiaceae; Dicotyledones; Angiospermae; Spermatophyta; Ascomycota; Fungi; America; Hardwood forest tree; Laticiferous plant; Vegetative apparatus; Molecular hybridizationSensibilidad resistencia; Infección; Hoja vegetal; Hibridación supresora sustractiva; Fitopatología; Hevea brasiliensis; Microcyclus ulei; America del surINIST-15356.35400050558254009011-0501633 001B01 Supramolecular polymorphism of DNA in non-cationic L<sub>α</sub> lipid phasesE. R. Teixeira Da SilvaUniversité de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer33600 PessacFRA1 aut.3 aut.4 aut.5 aut.E. Andreoli De OliveiraUniversidade de São Paulo, Instituto de Fisica-GFCx, P.O.B. 66318Sao Paulo, SP 05314-970BRA2 aut.A. FevrierUniversité de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer33600 PessacFRA1 aut.3 aut.4 aut.5 aut.F. NalletUniversité de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer33600 PessacFRA1 aut.3 aut.4 aut.5 aut.L. NavaillesUniversité de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer33600 PessacFRA1 aut.3 aut.4 aut.5 aut.11-05016672011PASCAL 11-0501667 INISTPascal:11-0501667000E241292-8941Eur. phys. j., E Soft matter : (Print)The European physical journal. E, Soft matter : (Print)Cationic complexDNAFluorescence microscopyLipidsMolecular assemblyMolecular complexMolecular structureTransmission electron microscopyX ray scatteringDNAComplexe moléculaireLipideComplexe cationiqueStructure moléculaireAssemblage moléculaireDiffusion RXMicroscopie fluorescenceMicroscopie électronique transmissionLipoplexe
The structure of a complex between hydrated DNA and a non-cationic lipid is studied, including its phase diagram. The complex is spontaneously formed by adding DNA fragments (ca. 150 base pairs in length) to non-cationic lipids and water. The self-assembly process often leads to highly ordered structures. The structures were studied by combining X-ray scattering, fluorescence and polarized microscopy, as well as freeze-fracture experiments with transmission electron microscopy. We observe a significant increase of the smectic order as DNA is incorporated into the water layers of the lamellar host phase, and stabilization of single phase domains for large amounts of DNA. The effect of confinement on DNA ordering is investigated by varying the water content, following three dilution lines. A rich polymorphism is found, ranging from weakly correlated DNA-DNA in-plane organizations to highly ordered structures, where transmembrane correlations lead to the formation of columnar rectangular and columnar hexagonal superlattices of nucleotides embedded between lipid lamellae. From these observations, we suggest that addition of DNA to the lamellar phase significantly restricts membrane fluctuations above a certain concentration and helps the formation of the lipoplex. The alteration of membrane steric interactions, together with the appearance of interfacial interactions between membranes and DNA molecules may be a relevant mechanism for the emergence of highly ordered structures in the concentrated regime.
1292-8941Eur. phys. j., E Soft matter : (Print)348Supramolecular polymorphism of DNA in non-cationic Lα lipid phasesTEIXEIRA DA SILVA (E. R.)ANDREOLI DE OLIVEIRA (E.)FEVRIER (A.)NALLET (F.)NAVAILLES (L.)Université de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer33600 PessacFRA1 aut.3 aut.4 aut.5 aut.Universidade de São Paulo, Instituto de Fisica-GFCx, P.O.B. 66318Sao Paulo, SP 05314-970BRA2 aut.83.1-83.112011ENGINIST799E3540005099231301000000© 2011 INIST-CNRS. All rights reserved.44 ref.11-0501667PAThe European physical journal. E, Soft matter : (Print)FRAThe structure of a complex between hydrated DNA and a non-cationic lipid is studied, including its phase diagram. The complex is spontaneously formed by adding DNA fragments (ca. 150 base pairs in length) to non-cationic lipids and water. The self-assembly process often leads to highly ordered structures. The structures were studied by combining X-ray scattering, fluorescence and polarized microscopy, as well as freeze-fracture experiments with transmission electron microscopy. We observe a significant increase of the smectic order as DNA is incorporated into the water layers of the lamellar host phase, and stabilization of single phase domains for large amounts of DNA. The effect of confinement on DNA ordering is investigated by varying the water content, following three dilution lines. A rich polymorphism is found, ranging from weakly correlated DNA-DNA in-plane organizations to highly ordered structures, where transmembrane correlations lead to the formation of columnar rectangular and columnar hexagonal superlattices of nucleotides embedded between lipid lamellae. From these observations, we suggest that addition of DNA to the lamellar phase significantly restricts membrane fluctuations above a certain concentration and helps the formation of the lipoplex. The alteration of membrane steric interactions, together with the appearance of interfacial interactions between membranes and DNA molecules may be a relevant mechanism for the emergence of highly ordered structures in the concentrated regime.002A03H01DNA01DNA01DNA01Complexe moléculaire02Molecular complex02Complejo molecular02Lipide03Lipids03Lípido03Complexe cationique04Cationic complex04Complejo catiónico04Structure moléculaire05Molecular structure05Estructura molecular05Assemblage moléculaire06Molecular assembly06Ensamble molecular06Diffusion RX07X ray scattering07Difusión rayo X07Microscopie fluorescence08Fluorescence microscopy08Microscopía fluorescencia08Microscopie électronique transmission09Transmission electron microscopy09Microscopía electrónica transmisión09LipoplexeINC88Acide nucléique19Nucleic acid19Acido nucleico19Composé biochimique20Biochemical compound20Compuesto bioquímico20346PASCAL 11-0501667 INISTSupramolecular polymorphism of DNA in non-cationic Lα lipid phasesTEIXEIRA DA SILVA (E. R.); ANDREOLI DE OLIVEIRA (E.); FEVRIER (A.); NALLET (F.); NAVAILLES (L.)Université de Bordeaux, Centre de recherche Paul-Pascal-CNRS, 115 avenue du Docteur-Schweitzer/33600 Pessac/France (1 aut., 3 aut., 4 aut., 5 aut.); Universidade de São Paulo, Instituto de Fisica-GFCx, P.O.B. 66318/Sao Paulo, SP 05314-970/Brésil (2 aut.)
Publication en série; Niveau analytique
The European physical journal. E, Soft matter : (Print); ISSN 1292-8941; France; Da. 2011; Vol. 34; No. 8; 83.1-83.11; Bibl. 44 ref.AnglaisThe structure of a complex between hydrated DNA and a non-cationic lipid is studied, including its phase diagram. The complex is spontaneously formed by adding DNA fragments (ca. 150 base pairs in length) to non-cationic lipids and water. The self-assembly process often leads to highly ordered structures. The structures were studied by combining X-ray scattering, fluorescence and polarized microscopy, as well as freeze-fracture experiments with transmission electron microscopy. We observe a significant increase of the smectic order as DNA is incorporated into the water layers of the lamellar host phase, and stabilization of single phase domains for large amounts of DNA. The effect of confinement on DNA ordering is investigated by varying the water content, following three dilution lines. A rich polymorphism is found, ranging from weakly correlated DNA-DNA in-plane organizations to highly ordered structures, where transmembrane correlations lead to the formation of columnar rectangular and columnar hexagonal superlattices of nucleotides embedded between lipid lamellae. From these observations, we suggest that addition of DNA to the lamellar phase significantly restricts membrane fluctuations above a certain concentration and helps the formation of the lipoplex. The alteration of membrane steric interactions, together with the appearance of interfacial interactions between membranes and DNA molecules may be a relevant mechanism for the emergence of highly ordered structures in the concentrated regime.002A03H01DNA; Complexe moléculaire; Lipide; Complexe cationique; Structure moléculaire; Assemblage moléculaire; Diffusion RX; Microscopie fluorescence; Microscopie électronique transmission; LipoplexeAcide nucléique; Composé biochimiqueDNA; Molecular complex; Lipids; Cationic complex; Molecular structure; Molecular assembly; X ray scattering; Fluorescence microscopy; Transmission electron microscopyNucleic acid; Biochemical compoundDNA; Complejo molecular; Lípido; Complejo catiónico; Estructura molecular; Ensamble molecular; Difusión rayo X; Microscopía fluorescencia; Microscopía electrónica transmisiónINIST-799E.35400050992313010011-0501667 001B02 Nanostructured tantalum nitride films as buffer-layer for carbon nanotube growthC. JinLaboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 21091405 OrsayFRA1 aut.4 aut.5 aut.6 aut.M. DelmasLaboratoire Francis Perrin, DSM/IRAMIS/SPAM (CNRS-URA 2453), CEA-Saclay91191 Gif sur YvetteFRA2 aut.7 aut.P. AubertInstitut d'électronique fondamentale (CNRS-UMR 8622), Univ Paris-Sud, Bât. 22091405 OrsayFRA3 aut.F. AlvarezLaboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 21091405 OrsayFRA1 aut.4 aut.5 aut.6 aut.UNICAMP, Instituto de Fisica "Gleb Wataghin"13081-970 Campinas, SPCP 6165BRA4 aut.T. MineaLaboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 21091405 OrsayFRA1 aut.4 aut.5 aut.6 aut.M. C. HugonLaboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 21091405 OrsayFRA1 aut.4 aut.5 aut.6 aut.B. Bouchet-FabreLaboratoire Francis Perrin, DSM/IRAMIS/SPAM (CNRS-URA 2453), CEA-Saclay91191 Gif sur YvetteFRA2 aut.7 aut.11-05021522011PASCAL 11-0502152 INISTPascal:11-0502152000E230040-6090Thin solid filmsThin solid filmsAnnealingBuffer layerCarbon nanotubesCatalystChemical vapor depositionCoatingsCrystallinityDiffusionDiffusion barrierGrowth rateIronMorphologyNanomaterial synthesisNanostructureNanostructured materialsNitridesPhysical vapor depositionRoughnessTantalumThin filmNanostructureCouche minceCouche tamponSynthèse nanomatériauDiffusion(transport)RevêtementCatalyseurDépôt chimique phase vapeurNanomatériauDépôt physique phase vapeurMorphologieTaux croissanceRugositéCristallinitéTantaleNitrureFerNanotube carboneRecuitBarrière diffusionTaTaNxSubstrat cuivre8116B6835F8115G
Tantalum nitride (TaNx) films are usually used as barriers to the diffusion of copper in the substrate for electronic devices. In the present work, the TaNx coating plays an extra role in the iron catalyzed chemical vapor deposition production of carbon nanotubes (CNT). The CNTs were grown at 850 °C on TaNx films prepared by radio frequency magnetron sputtering. The correlation between the CNT morphology and growth rate, and the pristine TaNx film nature, is investigated by comparing the evolution of the nano-composition, roughness and nano-crystallinity of the TaNx films both after annealing and CVD at 850 °C.
0040-6090THSFAPThin solid films51912Nanostructured tantalum nitride films as buffer-layer for carbon nanotube growthProceedings of the EMRS 2010 Spring Meeting Symposium L: Carbon- or Nitrogen-Containing Nanostructured Composite FilmsJIN (C.)DELMAS (M.)AUBERT (P.)ALVAREZ (F.)MINEA (T.)HUGON (M. C.)BOUCHET-FABRE (B.)BRAIC (Mariana)ed.TAMULEVICIUS (Sigitas)ed.TESSIER (Pierre-Yves)ed.Laboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 21091405 OrsayFRA1 aut.4 aut.5 aut.6 aut.Laboratoire Francis Perrin, DSM/IRAMIS/SPAM (CNRS-URA 2453), CEA-Saclay91191 Gif sur YvetteFRA2 aut.7 aut.Institut d'électronique fondamentale (CNRS-UMR 8622), Univ Paris-Sud, Bât. 22091405 OrsayFRA3 aut.UNICAMP, Instituto de Fisica "Gleb Wataghin"13081-970 Campinas, SPCP 6165BRA4 aut.National Institute for Optoelectronics - Research Centre for Advanced MaterialsBucharestROU1 aut.Universityof Technology - Institute of Physical ElectronicsKaunasLTU2 aut.University of Nantes, Institut des Matériaux Jean RouxelNantesFRA3 aut.European Materials Research Society (E-MRS)StrasbourgFRAorg-cong.4097-41002011ENGINIST135973540005072861802500000© 2011 INIST-CNRS. All rights reserved.26 ref.11-0502152PCAThin solid filmsNLDTantalum nitride (TaNx) films are usually used as barriers to the diffusion of copper in the substrate for electronic devices. In the present work, the TaNx coating plays an extra role in the iron catalyzed chemical vapor deposition production of carbon nanotubes (CNT). The CNTs were grown at 850 °C on TaNx films prepared by radio frequency magnetron sputtering. The correlation between the CNT morphology and growth rate, and the pristine TaNx film nature, is investigated by comparing the evolution of the nano-composition, roughness and nano-crystallinity of the TaNx films both after annealing and CVD at 850 °C.001C01A03A001B80A16B001B60H35FNanostructure01Nanostructure01Nanoestructura01Couche mince02Thin film02Capa fina02Couche tampon03Buffer layer03Capa tampón03Synthèse nanomatériau04Nanomaterial synthesis04Síntesis nanomaterial04Diffusion(transport)05Diffusion05Revêtement06Coatings06Revestimiento06Catalyseur07Catalyst07Catalizador07Dépôt chimique phase vapeur08Chemical vapor deposition08Depósito químico fase vapor08Nanomatériau09Nanostructured materials09Dépôt physique phase vapeur10Physical vapor deposition10Deposición física fase vapor10Morphologie11Morphology11Morfología11Taux croissance12Growth rate12Tasa crecimiento12Rugosité13Roughness13Rugosidad13Cristallinité14Crystallinity14Cristalinidad14TantaleNC15TantalumNC15TantalioNC15NitrureNA16NitridesNA16NitruroNA16FerNC17IronNC17HierroNC17Nanotube carbone18Carbon nanotubes18Recuit29Annealing29Recocido29Barrière diffusion30Diffusion barrier30Barrera difusión30TaINC46TaNxINC47Substrat cuivreINC488116BINC656835FINC738115GINC74346EMRS 2010 Spring Meeting. Symposium L: Carbon- or Nitrogen-Containing Nanostructured Composite Films - 10Strasbourg FRA2010-06-07PASCAL 11-0502152 INISTNanostructured tantalum nitride films as buffer-layer for carbon nanotube growthJIN (C.); DELMAS (M.); AUBERT (P.); ALVAREZ (F.); MINEA (T.); HUGON (M. C.); BOUCHET-FABRE (B.); BRAIC (Mariana); TAMULEVICIUS (Sigitas); TESSIER (Pierre-Yves)Laboratoire de Physique des Gaz et des Plasmas (CNRS-UMR 8578), Univ Paris-Sud, Bat. 210/91405 Orsay/France (1 aut., 4 aut., 5 aut., 6 aut.); Laboratoire Francis Perrin, DSM/IRAMIS/SPAM (CNRS-URA 2453), CEA-Saclay/91191 Gif sur Yvette/France (2 aut., 7 aut.); Institut d'électronique fondamentale (CNRS-UMR 8622), Univ Paris-Sud, Bât. 220/91405 Orsay/France (3 aut.); UNICAMP, Instituto de Fisica "Gleb Wataghin"13081-970 Campinas, SP/CP 6165/Brésil (4 aut.); National Institute for Optoelectronics - Research Centre for Advanced Materials/Bucharest/Roumanie (1 aut.); Universityof Technology - Institute of Physical Electronics/Kaunas/Lithuanie (2 aut.); University of Nantes, Institut des Matériaux Jean Rouxel/Nantes/France (3 aut.)
Publication en série; Congrès; Niveau analytique
Thin solid films; ISSN 0040-6090; Coden THSFAP; Pays-Bas; Da. 2011; Vol. 519; No. 12; Pp. 4097-4100; Bibl. 26 ref.AnglaisTantalum nitride (TaNx) films are usually used as barriers to the diffusion of copper in the substrate for electronic devices. In the present work, the TaNx coating plays an extra role in the iron catalyzed chemical vapor deposition production of carbon nanotubes (CNT). The CNTs were grown at 850 °C on TaNx films prepared by radio frequency magnetron sputtering. The correlation between the CNT morphology and growth rate, and the pristine TaNx film nature, is investigated by comparing the evolution of the nano-composition, roughness and nano-crystallinity of the TaNx films both after annealing and CVD at 850 °C.001C01A03A; 001B80A16B; 001B60H35FNanostructure; Couche mince; Couche tampon; Synthèse nanomatériau; Diffusion(transport); Revêtement; Catalyseur; Dépôt chimique phase vapeur; Nanomatériau; Dépôt physique phase vapeur; Morphologie; Taux croissance; Rugosité; Cristallinité; Tantale; Nitrure; Fer; Nanotube carbone; Recuit; Barrière diffusion; Ta; TaNx; Substrat cuivre; 8116B; 6835F; 8115GNanostructure; Thin film; Buffer layer; Nanomaterial synthesis; Diffusion; Coatings; Catalyst; Chemical vapor deposition; Nanostructured materials; Physical vapor deposition; Morphology; Growth rate; Roughness; Crystallinity; Tantalum; Nitrides; Iron; Carbon nanotubes; Annealing; Diffusion barrierNanoestructura; Capa fina; Capa tampón; Síntesis nanomaterial; Revestimiento; Catalizador; Depósito químico fase vapor; Deposición física fase vapor; Morfología; Tasa crecimiento; Rugosidad; Cristalinidad; Tantalio; Nitruro; Hierro; Recocido; Barrera difusiónINIST-13597.35400050728618025011-0502152 001B03 Synthesis of star poly(N-isopropylacrylamide) by β-cyclodextrin core initiator via ATRP approach in waterMarcos Roberto MauricioGrupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, AvColombo 5790, 87020-200 MaringáBRA1 aut.5 aut.6 aut.7 aut.Issei OtsukaCentre de Recherche sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), BP5338041 GrenobleFRA2 aut.3 aut.Redouane BorsaliCentre de Recherche sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), BP5338041 GrenobleFRA2 aut.3 aut.Cesar L. PetzholdInstituto de Química, Universidade Federal do Rio Grande do Sul91501-970 Porto Alegre, RSBRA4 aut.Thelma S. P. CelletGrupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, AvColombo 5790, 87020-200 MaringáBRA1 aut.5 aut.6 aut.7 aut.Gizilene Maria De CarvalhoGrupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, AvColombo 5790, 87020-200 MaringáBRA1 aut.5 aut.6 aut.7 aut.Adley Forti RubiraGrupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, AvColombo 5790, 87020-200 MaringáBRA1 aut.5 aut.6 aut.7 aut.11-05022892011PASCAL 11-0502289 INISTPascal:11-0502289000E221381-5148React. funct. polym.Reactive & functional polymersAcrylamide derivative polymerAcyl bromideAqueous solutionAtom transfer polymerizationBromine containing polymerChemical modificationCloud pointCyclodextrinDimension spectrumEsterificationExperimental studyHydrodynamic radiusInitiator polymerLiving polymerMicellar solutionMicellizationPreparationRadical catalystStar polymerCyclodextrinePolymère bromePolymère amorceurAmorceur radicalairePréparationModification chimiqueEstérificationBromure acylePolymérisation transfert atomeAcrylamide dérivé polymèrePolymère vivantPolymère étoileSolution aqueusePoint troubleMicellisationSolution micellaireRayon hydrodynamiqueSpectre dimensionEtude expérimentaleAcrylamide(N-isopropyl) polymèrePolymère thermosensibleMorphologie agrégatDérivé de la cyclodextrine
Star poly(N-isopropylacrylamide) (PNIPAAm) based on a β-cyclodextrin (β-CD) core macroinitiator was synthesized by means of atomic transfer radical polymerization (ATRP) in water using copper(1)/2,2bipyridyl complex as a catalytic system at temperature above the lower critical solution temperature (LCST) of the PNIPAAm. The macroinitiator was prepared by the transesterification reaction of the (β-CD) with 2-bromopropionyl bromide. The LCST of the samples upshifts slightly when the absolute molecular mass of the star PNIPAAm increases. Over the phase transition, the solutions became bluish opalescent due to formation of a heterogeneous phase system consisting of collapsed polymer particles in water. Atomic force microscopy and dynamic light scattering analyses indicated two populations of self-assembled polymer structure: a larger population and a smaller population. The smaller size suggests to self-assembly of polymer micelles and the large one corresponds to aggregates of polymer micelles or star polymers coupled. Polydispersity of the star PNIPAAm ranged from 1.60 to 4.04 within 15 h of reaction, which was attributed to the collapse of the PNIPAAm chains at temperature above the LCST that causes a decrease of the polymer reactivity. This was also attributed to the star-star coupling that generates twice the value of the polydispersity for any time before 15 h of polymerization.
1381-5148React. funct. polym.7112Synthesis of star poly(N-isopropylacrylamide) by β-cyclodextrin core initiator via ATRP approach in waterMAURICIO (Marcos Roberto)OTSUKA (Issei)BORSALI (Redouane)PETZHOLD (Cesar L.)CELLET (Thelma S. P.)DE CARVALHO (Gizilene Maria)FORTI RUBIRA (Adley)Grupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, AvColombo 5790, 87020-200 MaringáBRA1 aut.5 aut.6 aut.7 aut.Centre de Recherche sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), BP5338041 GrenobleFRA2 aut.3 aut.Instituto de Química, Universidade Federal do Rio Grande do Sul91501-970 Porto Alegre, RSBRA4 aut.1160-11652011ENGINIST193803540005072996200600000© 2011 INIST-CNRS. All rights reserved.21 ref.11-0502289PAReactive & functional polymersGBRStar poly(N-isopropylacrylamide) (PNIPAAm) based on a β-cyclodextrin (β-CD) core macroinitiator was synthesized by means of atomic transfer radical polymerization (ATRP) in water using copper(1)/2,2bipyridyl complex as a catalytic system at temperature above the lower critical solution temperature (LCST) of the PNIPAAm. The macroinitiator was prepared by the transesterification reaction of the (β-CD) with 2-bromopropionyl bromide. The LCST of the samples upshifts slightly when the absolute molecular mass of the star PNIPAAm increases. Over the phase transition, the solutions became bluish opalescent due to formation of a heterogeneous phase system consisting of collapsed polymer particles in water. Atomic force microscopy and dynamic light scattering analyses indicated two populations of self-assembled polymer structure: a larger population and a smaller population. The smaller size suggests to self-assembly of polymer micelles and the large one corresponds to aggregates of polymer micelles or star polymers coupled. Polydispersity of the star PNIPAAm ranged from 1.60 to 4.04 within 15 h of reaction, which was attributed to the collapse of the PNIPAAm chains at temperature above the LCST that causes a decrease of the polymer reactivity. This was also attributed to the star-star coupling that generates twice the value of the polydispersity for any time before 15 h of polymerization.001D09D02BCyclodextrine01Cyclodextrin01Ciclodextrina01Polymère bromeNK02Bromine containing polymerNK02Polímero bromoNK02Polymère amorceur03Initiator polymer03Polímero iniciador03Amorceur radicalaire04Radical catalyst04Iniciador radical04Préparation06Preparation06Preparación06Modification chimique07Chemical modification07Modificación química07Estérification08Esterification08Esterificación08Bromure acyleENT09Acyl bromideENT09Bromuro aciloENT09Polymérisation transfert atome11Atom transfer polymerization11Polimerización transferencia atomo11Acrylamide dérivé polymèreNK12Acrylamide derivative polymerNK12Acrilamida derivado polímeroNK12Polymère vivant13Living polymer13Polímero viviente13Polymère étoile14Star polymer14Polímero estrella14Solution aqueuse15Aqueous solution15Solución acuosa15Point trouble16Cloud point16Punto enturbamiento16Micellisation17Micellization17Micelización17Solution micellaire18Micellar solution18Solución micelar18Rayon hydrodynamique19Hydrodynamic radius19Radio hidrodinámico19Spectre dimension20Dimension spectrum20Espectro dimensión20Etude expérimentale21Experimental study21Estudio experimental21Acrylamide(N-isopropyl) polymèreNKINC32Acrylamide(«N»-isopropyl) polymèrePolymère thermosensibleINC33Morphologie agrégatINC34Dérivé de la cyclodextrineNKINC35346PSIPSIPASCAL 11-0502289 INISTSynthesis of star poly(N-isopropylacrylamide) by β-cyclodextrin core initiator via ATRP approach in waterMAURICIO (Marcos Roberto); OTSUKA (Issei); BORSALI (Redouane); PETZHOLD (Cesar L.); CELLET (Thelma S. P.); DE CARVALHO (Gizilene Maria); FORTI RUBIRA (Adley)Grupo de Materiais Poliméricos e Compósitos (GMPC), Universidade Estadual de Maringá, Av/Colombo 5790, 87020-200 Maringá/Brésil (1 aut., 5 aut., 6 aut., 7 aut.); Centre de Recherche sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), BP53/38041 Grenoble/France (2 aut., 3 aut.); Instituto de Química, Universidade Federal do Rio Grande do Sul/91501-970 Porto Alegre, RS/Brésil (4 aut.)
Publication en série; Niveau analytique
Reactive & functional polymers; ISSN 1381-5148; Royaume-Uni; Da. 2011; Vol. 71; No. 12; Pp. 1160-1165; Bibl. 21 ref.AnglaisStar poly(N-isopropylacrylamide) (PNIPAAm) based on a β-cyclodextrin (β-CD) core macroinitiator was synthesized by means of atomic transfer radical polymerization (ATRP) in water using copper(1)/2,2bipyridyl complex as a catalytic system at temperature above the lower critical solution temperature (LCST) of the PNIPAAm. The macroinitiator was prepared by the transesterification reaction of the (β-CD) with 2-bromopropionyl bromide. The LCST of the samples upshifts slightly when the absolute molecular mass of the star PNIPAAm increases. Over the phase transition, the solutions became bluish opalescent due to formation of a heterogeneous phase system consisting of collapsed polymer particles in water. Atomic force microscopy and dynamic light scattering analyses indicated two populations of self-assembled polymer structure: a larger population and a smaller population. The smaller size suggests to self-assembly of polymer micelles and the large one corresponds to aggregates of polymer micelles or star polymers coupled. Polydispersity of the star PNIPAAm ranged from 1.60 to 4.04 within 15 h of reaction, which was attributed to the collapse of the PNIPAAm chains at temperature above the LCST that causes a decrease of the polymer reactivity. This was also attributed to the star-star coupling that generates twice the value of the polydispersity for any time before 15 h of polymerization.001D09D02BCyclodextrine; Polymère brome; Polymère amorceur; Amorceur radicalaire; Préparation; Modification chimique; Estérification; Bromure acyle; Polymérisation transfert atome; Acrylamide dérivé polymère; Polymère vivant; Polymère étoile; Solution aqueuse; Point trouble; Micellisation; Solution micellaire; Rayon hydrodynamique; Spectre dimension; Etude expérimentale; Acrylamide(N-isopropyl) polymère; Polymère thermosensible; Morphologie agrégat; Dérivé de la cyclodextrineCyclodextrin; Bromine containing polymer; Initiator polymer; Radical catalyst; Preparation; Chemical modification; Esterification; Acyl bromide; Atom transfer polymerization; Acrylamide derivative polymer; Living polymer; Star polymer; Aqueous solution; Cloud point; Micellization; Micellar solution; Hydrodynamic radius; Dimension spectrum; Experimental studyCiclodextrina; Polímero bromo; Polímero iniciador; Iniciador radical; Preparación; Modificación química; Esterificación; Bromuro acilo; Polimerización transferencia atomo; Acrilamida derivado polímero; Polímero viviente; Polímero estrella; Solución acuosa; Punto enturbamiento; Micelización; Solución micelar; Radio hidrodinámico; Espectro dimensión; Estudio experimentalINIST-19380.35400050729962006011-0502289 001B04 Spectroscopic properties, concentration quenching, and laser investigations of Yb<sup>3+</sup>-doped calcium aluminosilicate glassesYannick GuyotLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Alysson SteimacherLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Departamento de Física, Universidade Estadual de MaringáMaringá, PRBRA2 aut.3 aut.4 aut.5 aut.Marcos P. BelanconLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Departamento de Física, Universidade Estadual de MaringáMaringá, PRBRA2 aut.3 aut.4 aut.5 aut.Antonio N. MedinaDepartamento de Física, Universidade Estadual de MaringáMaringá, PRBRA2 aut.3 aut.4 aut.5 aut.Mauro L. BaessoDepartamento de Física, Universidade Estadual de MaringáMaringá, PRBRA2 aut.3 aut.4 aut.5 aut.Sandro M. LimaLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul, UEMSDourados, MSBRA6 aut.7 aut.Luis H. C. AndradeLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul, UEMSDourados, MSBRA6 aut.7 aut.Alain BrenierLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Anne-Marie JurdycLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Georges BoulonLaboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.11-05024522011PASCAL 11-0502452 INISTPascal:11-0502452000E210740-3224J. Opt. Soc. Am., B Opt. phys. : (Print)Journal of the Optical Society of America. B, Optical physics : (Print)Aluminosilicate glassCalcium CompoundsDoped materialsEmission spectraExcitation spectrumFluorescence spectrumLaser materialsOptical frequency conversionOptical materialsPhosphorsRaman spectraTime resolved spectroscopyUpconversionYtterbium additionsConversion fréquence optiqueSpectrométrie résolution temporelleSpectre émissionSpectre excitationSpectre RamanSpectre fluorescenceMatériau dopéMatériau optiqueAddition ytterbiumMatériau luminescentMatériau laserCalcium ComposéVerre aluminosilicate4270C4270HUpconversion0740-3224JOBPDEJ. Opt. Soc. Am., B Opt. phys. : (Print)2810Spectroscopic properties, concentration quenching, and laser investigations of Yb3+-doped calcium aluminosilicate glassesGUYOT (Yannick)STEIMACHER (Alysson)BELANCON (Marcos P.)MEDINA (Antonio N.)BAESSO (Mauro L.)LIMA (Sandro M.)ANDRADE (Luis H. C.)BRENIER (Alain)JURDYC (Anne-Marie)BOULON (Georges)Laboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS69622 VilleurbanneFRA1 aut.2 aut.3 aut.6 aut.7 aut.8 aut.9 aut.10 aut.Departamento de Física, Universidade Estadual de MaringáMaringá, PRBRA2 aut.3 aut.4 aut.5 aut.Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul, UEMSDourados, MSBRA6 aut.7 aut.2510-25172011ENGINIST131B3540005078836402900000© 2011 INIST-CNRS. All rights reserved.22 ref.11-0502452PAJournal of the Optical Society of America. B, Optical physics : (Print)USA001B40B70C001B40B70HConversion fréquence optique01Optical frequency conversion01Spectrométrie résolution temporelle30Time resolved spectroscopy30Spectre émission41Emission spectra41Spectre excitation42Excitation spectrum42Espectro excitación42Spectre Raman43Raman spectra43Spectre fluorescence44Fluorescence spectrum44Espectro fluorescencia44Matériau dopé50Doped materials50Matériau optique51Optical materials51Addition ytterbium57Ytterbium additions57Matériau luminescent59Phosphors59Matériau laser60Laser materials60Calcium ComposéNCNA61Calcium CompoundsNCNA61CompuestoNCNA61Verre aluminosilicate62Aluminosilicate glass624270CINC844270HINC85UpconversionCD96UpconversionCD96346PASCAL 11-0502452 INISTSpectroscopic properties, concentration quenching, and laser investigations of Yb3+-doped calcium aluminosilicate glassesGUYOT (Yannick); STEIMACHER (Alysson); BELANCON (Marcos P.); MEDINA (Antonio N.); BAESSO (Mauro L.); LIMA (Sandro M.); ANDRADE (Luis H. C.); BRENIER (Alain); JURDYC (Anne-Marie); BOULON (Georges)Laboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université de Lyon, UCBLyon1, UMR 5620 CNRS/69622 Villeurbanne/France (1 aut., 2 aut., 3 aut., 6 aut., 7 aut., 8 aut., 9 aut., 10 aut.); Departamento de Física, Universidade Estadual de Maringá/Maringá, PR/Brésil (2 aut., 3 aut., 4 aut., 5 aut.); Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul, UEMS/Dourados, MS/Brésil (6 aut., 7 aut.)
Publication en série; Niveau analytique
Journal of the Optical Society of America. B, Optical physics : (Print); ISSN 0740-3224; Coden JOBPDE; Etats-Unis; Da. 2011; Vol. 28; No. 10; Pp. 2510-2517; Bibl. 22 ref.Anglais001B40B70C; 001B40B70HConversion fréquence optique; Spectrométrie résolution temporelle; Spectre émission; Spectre excitation; Spectre Raman; Spectre fluorescence; Matériau dopé; Matériau optique; Addition ytterbium; Matériau luminescent; Matériau laser; Calcium Composé; Verre aluminosilicate; 4270C; 4270H; UpconversionOptical frequency conversion; Time resolved spectroscopy; Emission spectra; Excitation spectrum; Raman spectra; Fluorescence spectrum; Doped materials; Optical materials; Ytterbium additions; Phosphors; Laser materials; Calcium Compounds; Aluminosilicate glass; UpconversionEspectro excitación; Espectro fluorescencia; CompuestoINIST-131B.35400050788364029011-0502452 001B05 Partitioning hard clustering algorithms based on multiple dissimilarity matricesFrancisco De A. T. De CarvalhoCentro de Informática, Universidade Federal de Pernambuco, Av. Prof. Luiz Freire, s/n - Cidade UniversitáriaCEP 50740-540 Recife (PE)BRA1 aut.3 aut.Yves LechevallierINRIA-Institut National de Recherche en Informatique et en Automatique, Domaine de Voluceau, Rocquencourt, BP 10578153 Le ChesnayFRA2 aut.Filipe M. De MeloCentro de Informática, Universidade Federal de Pernambuco, Av. Prof. Luiz Freire, s/n - Cidade UniversitáriaCEP 50740-540 Recife (PE)BRA1 aut.3 aut.11-05044552012PASCAL 11-0504455 INISTPascal:11-0504455000E200031-3203Pattern recogn.Pattern recognitionAlgorithmAutomatic classificationIterative methodLearningOptimizationPartition methodPrototypeSignal classificationSimilarityMéthode partitionClassification automatiqueAlgorithmeSimilitudePrototypeOptimisationMéthode itérativeApprentissageClassification signal
This paper introduces hard clustering algorithms that are able to partition objects taking into account simultaneously their relational descriptions given by multiple dissimilarity matrices. These matrices have been generated using different sets of variables and dissimilarity functions. These methods are designed to furnish a partition and a prototype for each cluster as well as to learn a relevance weight for each dissimilarity matrix by optimizing an adequacy criterion that measures the fitting between the clusters and their representatives. These relevance weights change at each algorithm iteration and can either be the same for all clusters or different from one cluster to another. Experiments with data sets (synthetic and from UCI machine learning repository) described by real-valued variables as well as with time trajectory data sets show the usefulness of the proposed algorithms.
0031-3203PTNRA8Pattern recogn.451Partitioning hard clustering algorithms based on multiple dissimilarity matricesDE CARVALHO (Francisco De A. T.)LECHEVALLIER (Yves)DE MELO (Filipe M.)Centro de Informática, Universidade Federal de Pernambuco, Av. Prof. Luiz Freire, s/n - Cidade UniversitáriaCEP 50740-540 Recife (PE)BRA1 aut.3 aut.INRIA-Institut National de Recherche en Informatique et en Automatique, Domaine de Voluceau, Rocquencourt, BP 10578153 Le ChesnayFRA2 aut.447-4642012ENGINIST152203540005099423603700000© 2011 INIST-CNRS. All rights reserved.38 ref.11-0504455PAPattern recognitionGBRThis paper introduces hard clustering algorithms that are able to partition objects taking into account simultaneously their relational descriptions given by multiple dissimilarity matrices. These matrices have been generated using different sets of variables and dissimilarity functions. These methods are designed to furnish a partition and a prototype for each cluster as well as to learn a relevance weight for each dissimilarity matrix by optimizing an adequacy criterion that measures the fitting between the clusters and their representatives. These relevance weights change at each algorithm iteration and can either be the same for all clusters or different from one cluster to another. Experiments with data sets (synthetic and from UCI machine learning repository) described by real-valued variables as well as with time trajectory data sets show the usefulness of the proposed algorithms.001D04A04A1Méthode partition01Partition method01Método partición01Classification automatique02Automatic classification02Clasificación automática02Algorithme03Algorithm03Algoritmo03Similitude04Similarity04Similitud04Prototype05Prototype05Prototipo05Optimisation06Optimization06Optimización06Méthode itérative07Iterative method07Método iterativo07Apprentissage08Learning08Aprendizaje08Classification signal46Signal classification46346OTOOTOPASCAL 11-0504455 INISTPartitioning hard clustering algorithms based on multiple dissimilarity matricesDE CARVALHO (Francisco De A. T.); LECHEVALLIER (Yves); DE MELO (Filipe M.)Centro de Informática, Universidade Federal de Pernambuco, Av. Prof. Luiz Freire, s/n - Cidade Universitária/CEP 50740-540 Recife (PE)/Brésil (1 aut., 3 aut.); INRIA-Institut National de Recherche en Informatique et en Automatique, Domaine de Voluceau, Rocquencourt, BP 105/78153 Le Chesnay/France (2 aut.)
Publication en série; Niveau analytique
Pattern recognition; ISSN 0031-3203; Coden PTNRA8; Royaume-Uni; Da. 2012; Vol. 45; No. 1; Pp. 447-464; Bibl. 38 ref.AnglaisThis paper introduces hard clustering algorithms that are able to partition objects taking into account simultaneously their relational descriptions given by multiple dissimilarity matrices. These matrices have been generated using different sets of variables and dissimilarity functions. These methods are designed to furnish a partition and a prototype for each cluster as well as to learn a relevance weight for each dissimilarity matrix by optimizing an adequacy criterion that measures the fitting between the clusters and their representatives. These relevance weights change at each algorithm iteration and can either be the same for all clusters or different from one cluster to another. Experiments with data sets (synthetic and from UCI machine learning repository) described by real-valued variables as well as with time trajectory data sets show the usefulness of the proposed algorithms.001D04A04A1Méthode partition; Classification automatique; Algorithme; Similitude; Prototype; Optimisation; Méthode itérative; Apprentissage; Classification signalPartition method; Automatic classification; Algorithm; Similarity; Prototype; Optimization; Iterative method; Learning; Signal classificationMétodo partición; Clasificación automática; Algoritmo; Similitud; Prototipo; Optimización; Método iterativo; AprendizajeINIST-15220.35400050994236037011-0504455 001B06 Modeling and measuring the spatial relation "along": Regions, contours and fuzzy setsCelina Maki TakemuraEmbrapa Satellite Monitoring - Brazilian Agricultural Research Corporation, Av. Soldado Passarinho, 30313070-115 CampinasBRA1 aut.Institute of Mathematics and Statistics - IME, University of São Paulo - USP, Rua do Matão, 101005508-090 São PauloBRA1 aut.2 aut.Roberto M. Jr CesarInstitute of Mathematics and Statistics - IME, University of São Paulo - USP, Rua do Matão, 101005508-090 São PauloBRA1 aut.2 aut.Isabelle BlochTélécom ParisTech - CNRS LTCI, 46 rue Barrault75013 ParisFRA3 aut.11-05046392012PASCAL 11-0504639 INISTPascal:11-0504639000E190031-3203Pattern recogn.Pattern recognitionComputational complexityConvex hullFuzzy setMedical imageryModelingObject orientedPattern analysisPattern recognitionModélisationEnsemble flouAnalyse formeReconnaissance formeOrienté objetComplexité calculEnveloppe convexeImagerie médicale
The analysis of spatial relations among objects in an image is an important vision problem that involves both shape analysis and structural pattern recognition. In this paper, we propose a new approach to characterize the spatial relation along, an important feature of spatial configurations in space that has been overlooked in the literature up to now. We propose a mathematical definition of the degree to which an object A is along an object B, based on the region between A and B and a degree of elongatedness of this region. In order to better fit the perceptual meaning of the relation, distance information is included as well. In order to cover a more wide range of potential applications, both the crisp and fuzzy cases are considered. In the crisp case, the objects are represented in terms of 2D regions or 1D contours, and the definition of the alongness between them is derived from a visibility notion and from the region between the objects. However, the computational complexity of this approach leads us to the proposition of a new model to calculate the between region using the convex hull of the contours. On the fuzzy side, the region-based approach is extended. Experimental results obtained using synthetic shapes and brain structures in medical imaging corroborate the proposed model and the derived measures of alongness, thus showing that they agree with the common sense.
0031-3203PTNRA8Pattern recogn.452Modeling and measuring the spatial relation "along": Regions, contours and fuzzy setsMAKI TAKEMURA (Celina)CESAR (Roberto M. JR)BLOCH (Isabelle)Embrapa Satellite Monitoring - Brazilian Agricultural Research Corporation, Av. Soldado Passarinho, 30313070-115 CampinasBRA1 aut.Institute of Mathematics and Statistics - IME, University of São Paulo - USP, Rua do Matão, 101005508-090 São PauloBRA1 aut.2 aut.Télécom ParisTech - CNRS LTCI, 46 rue Barrault75013 ParisFRA3 aut.757-7662012ENGINIST152203540005099769200800000© 2011 INIST-CNRS. All rights reserved.20 ref.11-0504639PAPattern recognitionGBRThe analysis of spatial relations among objects in an image is an important vision problem that involves both shape analysis and structural pattern recognition. In this paper, we propose a new approach to characterize the spatial relation along, an important feature of spatial configurations in space that has been overlooked in the literature up to now. We propose a mathematical definition of the degree to which an object A is along an object B, based on the region between A and B and a degree of elongatedness of this region. In order to better fit the perceptual meaning of the relation, distance information is included as well. In order to cover a more wide range of potential applications, both the crisp and fuzzy cases are considered. In the crisp case, the objects are represented in terms of 2D regions or 1D contours, and the definition of the alongness between them is derived from a visibility notion and from the region between the objects. However, the computational complexity of this approach leads us to the proposition of a new model to calculate the between region using the convex hull of the contours. On the fuzzy side, the region-based approach is extended. Experimental results obtained using synthetic shapes and brain structures in medical imaging corroborate the proposed model and the derived measures of alongness, thus showing that they agree with the common sense.001D04A05A002B28CModélisation01Modeling01Modelización01Ensemble flou02Fuzzy set02Conjunto difuso02Analyse forme03Pattern analysis03Análisis forma03Reconnaissance forme04Pattern recognition04Reconocimiento patrón04Orienté objet05Object oriented05Orientado objeto05Complexité calcul06Computational complexity06Complejidad computación06Enveloppe convexe07Convex hull07Cápsula convexa07Imagerie médicale08Medical imagery08Imaginería médica08346OTOOTOPASCAL 11-0504639 INISTModeling and measuring the spatial relation "along": Regions, contours and fuzzy setsMAKI TAKEMURA (Celina); CESAR (Roberto M. JR); BLOCH (Isabelle)Embrapa Satellite Monitoring - Brazilian Agricultural Research Corporation, Av. Soldado Passarinho, 303/13070-115 Campinas/Brésil (1 aut.); Institute of Mathematics and Statistics - IME, University of São Paulo - USP, Rua do Matão, 1010/05508-090 São Paulo/Brésil (1 aut., 2 aut.); Télécom ParisTech - CNRS LTCI, 46 rue Barrault/75013 Paris/France (3 aut.)
Publication en série; Niveau analytique
Pattern recognition; ISSN 0031-3203; Coden PTNRA8; Royaume-Uni; Da. 2012; Vol. 45; No. 2; Pp. 757-766; Bibl. 20 ref.AnglaisThe analysis of spatial relations among objects in an image is an important vision problem that involves both shape analysis and structural pattern recognition. In this paper, we propose a new approach to characterize the spatial relation along, an important feature of spatial configurations in space that has been overlooked in the literature up to now. We propose a mathematical definition of the degree to which an object A is along an object B, based on the region between A and B and a degree of elongatedness of this region. In order to better fit the perceptual meaning of the relation, distance information is included as well. In order to cover a more wide range of potential applications, both the crisp and fuzzy cases are considered. In the crisp case, the objects are represented in terms of 2D regions or 1D contours, and the definition of the alongness between them is derived from a visibility notion and from the region between the objects. However, the computational complexity of this approach leads us to the proposition of a new model to calculate the between region using the convex hull of the contours. On the fuzzy side, the region-based approach is extended. Experimental results obtained using synthetic shapes and brain structures in medical imaging corroborate the proposed model and the derived measures of alongness, thus showing that they agree with the common sense.001D04A05A; 002B28CModélisation; Ensemble flou; Analyse forme; Reconnaissance forme; Orienté objet; Complexité calcul; Enveloppe convexe; Imagerie médicaleModeling; Fuzzy set; Pattern analysis; Pattern recognition; Object oriented; Computational complexity; Convex hull; Medical imageryModelización; Conjunto difuso; Análisis forma; Reconocimiento patrón; Orientado objeto; Complejidad computación; Cápsula convexa; Imaginería médicaINIST-15220.35400050997692008011-0504639 001B07 Handgrip strength and its dialysis determinants in hemodialysis patientsViviane O. LealMedical Sciences Graduation Program, Federal University FluminenseNiteroiBRA1 aut.4 aut.6 aut.7 aut.Milena B. StocklerInstitute of Byophysic Carlos Chagas Filho, Health Science Centre, Federal University of Rio de JaneiroRio de JaneiroBRA2 aut.Najla E. FarageRenalCor ClinicRio de JaneiroBRA3 aut.Luciana N. AranhaMedical Sciences Graduation Program, Federal University FluminenseNiteroiBRA1 aut.4 aut.6 aut.7 aut.Denis FouqueDepartment of Nephrology, Hôpital Edouard Herriot, Université Lyon 1LyonFRA5 aut.Luiz A. AnjosMedical Sciences Graduation Program, Federal University FluminenseNiteroiBRA1 aut.4 aut.6 aut.7 aut.Nutritional and Functional Assessment Laboratory, Department of Social Nutrition, Federal University FluminenseNiteróiBRA6 aut.Denise MafraMedical Sciences Graduation Program, Federal University FluminenseNiteroiBRA1 aut.4 aut.6 aut.7 aut.Department of Clinical Nutrition, Federal University FluminenseNiteróiBRA7 aut.11-05046922011PASCAL 11-0504692 INISTPascal:11-0504692000E180899-9007Nutrition : (Burbank, Los Angel. Cty. Calif.)Nutrition : (Burbank, Los Angeles County, Calif.)DeterminantDialysisHandHemodialysisHumanMammaliaMuscle strengthNutritionStrengthRésistance mécaniqueDialyseDéterminantHémodialyseMainForce musculaireNutritionMammaliaHomme
Objective: To evaluate muscle function (MF) of patients on hemodialysis (HD) and to investigate the dialysis determinants of maximal voluntary handgrip strength (HGS). Methods: Forty-three patients on HD (25 men, six diabetics, 54.5 ± 12.2 y of age, 62.2 ± 51.4 mo on dialysis) were studied. HGS was measured three times with a mechanical dynamometer (Jamar) before and after HD sessions on the non-fistula side and the highest value was used for analysis. HGS values lower than the 10th percentile of an age-, gender-, and region-specific reference were considered MF loss. Biochemical and dialysis variables (ultrafiltration, interdialytic body weight gain, urea clearance, urea before and after HD, systolic and diastolic blood pressures before and after HD, and difference in systolic and diastolic blood pressures) were also examined. Results: The HGS values before and after HD values were significantly higher in men but were not statistically different before and after the HD sessions (29.8 ± 10.3 and 30.2 ± 9.9 kg for men, 14.1 ± 7.0 and 14.5 ± 6.3 kg for women). MF loss was observed in 24 patients (55.8%), 12 women and 12 men. Dialysis variables were not different between patients with and without MF loss and did not correlate with HGS measured before or after an HD session. Conclusions: Patients using HD presented a high prevalence of MF loss as assessed by HGS, and it was not influenced by dialysis variables. HGS may be used as a reliable nutritional marker in HD, measured before or after HD sessions.
0899-9007NUTRERNutrition : (Burbank, Los Angel. Cty. Calif.)2711-12Handgrip strength and its dialysis determinants in hemodialysis patientsLEAL (Viviane O.)STOCKLER (Milena B.)FARAGE (Najla E.)ARANHA (Luciana N.)FOUQUE (Denis)ANJOS (Luiz A.)MAFRA (Denise)Medical Sciences Graduation Program, Federal University FluminenseNiteroiBRA1 aut.4 aut.6 aut.7 aut.Institute of Byophysic Carlos Chagas Filho, Health Science Centre, Federal University of Rio de JaneiroRio de JaneiroBRA2 aut.RenalCor ClinicRio de JaneiroBRA3 aut.Department of Nephrology, Hôpital Edouard Herriot, Université Lyon 1LyonFRA5 aut.Nutritional and Functional Assessment Laboratory, Department of Social Nutrition, Federal University FluminenseNiteróiBRA6 aut.Department of Clinical Nutrition, Federal University FluminenseNiteróiBRA7 aut.1125-11292011ENGINIST221653540005078649100600000© 2011 INIST-CNRS. All rights reserved.34 ref.11-0504692PANutrition : (Burbank, Los Angeles County, Calif.)USAObjective: To evaluate muscle function (MF) of patients on hemodialysis (HD) and to investigate the dialysis determinants of maximal voluntary handgrip strength (HGS). Methods: Forty-three patients on HD (25 men, six diabetics, 54.5 ± 12.2 y of age, 62.2 ± 51.4 mo on dialysis) were studied. HGS was measured three times with a mechanical dynamometer (Jamar) before and after HD sessions on the non-fistula side and the highest value was used for analysis. HGS values lower than the 10th percentile of an age-, gender-, and region-specific reference were considered MF loss. Biochemical and dialysis variables (ultrafiltration, interdialytic body weight gain, urea clearance, urea before and after HD, systolic and diastolic blood pressures before and after HD, and difference in systolic and diastolic blood pressures) were also examined. Results: The HGS values before and after HD values were significantly higher in men but were not statistically different before and after the HD sessions (29.8 ± 10.3 and 30.2 ± 9.9 kg for men, 14.1 ± 7.0 and 14.5 ± 6.3 kg for women). MF loss was observed in 24 patients (55.8%), 12 women and 12 men. Dialysis variables were not different between patients with and without MF loss and did not correlate with HGS measured before or after an HD session. Conclusions: Patients using HD presented a high prevalence of MF loss as assessed by HGS, and it was not influenced by dialysis variables. HGS may be used as a reliable nutritional marker in HD, measured before or after HD sessions.002A16ERésistance mécanique01Strength01Resistencia mecánica01Dialyse02Dialysis02Diálisis02Déterminant03Determinant03Determinante03Hémodialyse04Hemodialysis04Hemodiálisis04Main05Hand05Mano05Force musculaire06Muscle strength06Fuerza muscular06Nutrition07Nutrition07Nutrición07MammaliaNS08MammaliaNS08MammaliaNS08Homme54Human54Hombre54VertebrataNSVertebrataNSVertebrataNS346OTOOTOPASCAL 11-0504692 INISTHandgrip strength and its dialysis determinants in hemodialysis patientsLEAL (Viviane O.); STOCKLER (Milena B.); FARAGE (Najla E.); ARANHA (Luciana N.); FOUQUE (Denis); ANJOS (Luiz A.); MAFRA (Denise)Medical Sciences Graduation Program, Federal University Fluminense/Niteroi/Brésil (1 aut., 4 aut., 6 aut., 7 aut.); Institute of Byophysic Carlos Chagas Filho, Health Science Centre, Federal University of Rio de Janeiro/Rio de Janeiro/Brésil (2 aut.); RenalCor Clinic/Rio de Janeiro/Brésil (3 aut.); Department of Nephrology, Hôpital Edouard Herriot, Université Lyon 1/Lyon/France (5 aut.); Nutritional and Functional Assessment Laboratory, Department of Social Nutrition, Federal University Fluminense/Niterói/Brésil (6 aut.); Department of Clinical Nutrition, Federal University Fluminense/Niterói/Brésil (7 aut.)
Publication en série; Niveau analytique
Nutrition : (Burbank, Los Angeles County, Calif.); ISSN 0899-9007; Coden NUTRER; Etats-Unis; Da. 2011; Vol. 27; No. 11-12; Pp. 1125-1129; Bibl. 34 ref.AnglaisObjective: To evaluate muscle function (MF) of patients on hemodialysis (HD) and to investigate the dialysis determinants of maximal voluntary handgrip strength (HGS). Methods: Forty-three patients on HD (25 men, six diabetics, 54.5 ± 12.2 y of age, 62.2 ± 51.4 mo on dialysis) were studied. HGS was measured three times with a mechanical dynamometer (Jamar) before and after HD sessions on the non-fistula side and the highest value was used for analysis. HGS values lower than the 10th percentile of an age-, gender-, and region-specific reference were considered MF loss. Biochemical and dialysis variables (ultrafiltration, interdialytic body weight gain, urea clearance, urea before and after HD, systolic and diastolic blood pressures before and after HD, and difference in systolic and diastolic blood pressures) were also examined. Results: The HGS values before and after HD values were significantly higher in men but were not statistically different before and after the HD sessions (29.8 ± 10.3 and 30.2 ± 9.9 kg for men, 14.1 ± 7.0 and 14.5 ± 6.3 kg for women). MF loss was observed in 24 patients (55.8%), 12 women and 12 men. Dialysis variables were not different between patients with and without MF loss and did not correlate with HGS measured before or after an HD session. Conclusions: Patients using HD presented a high prevalence of MF loss as assessed by HGS, and it was not influenced by dialysis variables. HGS may be used as a reliable nutritional marker in HD, measured before or after HD sessions.002A16ERésistance mécanique; Dialyse; Déterminant; Hémodialyse; Main; Force musculaire; Nutrition; Mammalia; HommeVertebrataStrength; Dialysis; Determinant; Hemodialysis; Hand; Muscle strength; Nutrition; Mammalia; HumanVertebrataResistencia mecánica; Diálisis; Determinante; Hemodiálisis; Mano; Fuerza muscular; Nutrición; Mammalia; HombreINIST-22165.35400050786491006011-0504692 001B08 A critical review on some closely related species of Tetranychus sensu stricto (Acari: Tetranychidae) in the public DNA sequences databasesRenata S. De MendoncaPlant Quarantine, Embrapa Recusrsos Geneticos e Biotecnologia, Parque Estação Biológica, Norte Final W5, Caixa Postal 02372Brasilia, DF 70770-917BRA1 aut.2 aut.Denise NaviaPlant Quarantine, Embrapa Recusrsos Geneticos e Biotecnologia, Parque Estação Biológica, Norte Final W5, Caixa Postal 02372Brasilia, DF 70770-917BRA1 aut.2 aut.Ivone R. DinizDepartamento de Zoologia, UNB, Instituto de Ciencia Biológicas, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, ICC Sul, Sala AT-116, Asa NorteBrasília, DF 70910-900BRA3 aut.Philippe AugerIntitut National de la Recherche Agronomique, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Campus International de Baillarguet, CS 3001634988 Montferrier-sur-LezFRA4 aut.5 aut.Maria NavajasIntitut National de la Recherche Agronomique, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Campus International de Baillarguet, CS 3001634988 Montferrier-sur-LezFRA4 aut.5 aut.11-05047652011PASCAL 11-0504765 INISTPascal:11-0504765000E170168-8162Exp. appl. acarol.Experimental & applied acarologyCritical studyCytochrome-c oxidaseDNADatabaseMolecular systematicsPestTetranychusEtude critiqueDNABase de donnéesCytochrome-c oxidaseSystématique moléculaireDéprédateurTetranychus
Taxonomic misidentification of the specimens used to obtain DNA sequences is a growing problem reported for different groups of organisms, which threatens the utility of the deposited sequences in public DNA databases. This paper provides new evidence of misidentifications in molecular DNA public databases in phytophagous mites of the Tetranychidae family belonging to the group Tetranychus (Tetranychus). Several species in this group are of economic and quarantine importance in agriculture and among them Tetranychus urticae, a highly polyphagous mite causing outbreaks in many crops worldwide, is certainly the most studied. We analyzed and evaluated the identity of 105 GenBank accessions of ITS2 rDNA and 138 COI mtDNA sequences which were deposited as T. urticae and those of 14 other taxa morphologically closely related to Tetranychus sensu stricto. In addition, ITS2 and COI sequences of 18 T. urticae samples collected for this study and identified by morphological criteria, were generated and included in the analyzed dataset. Among the deposited sequences in the GenBank database, numerous cases of apparently mistaken identities were identified in the group Tetranychus s. str., especially between T. urticae, T. cinnabarinus, T. kanzawai and T. truncatus. Unreliable sequences (misidentified or dubious) were estimated at nearly 30%. In particular the analysis supports the invalidity of the controversial species status of T. cinnabarinus. More generally, it highlights the need of using combined morphological and molecular approaches to guarantee solid species diagnostics for reliable sequence accessions in public databases.
0168-8162EAACEMExp. appl. acarol.551A critical review on some closely related species of Tetranychus sensu stricto (Acari: Tetranychidae) in the public DNA sequences databasesDE MENDONCA (Renata S.)NAVIA (Denise)DINIZ (Ivone R.)AUGER (Philippe)NAVAJAS (Maria)Plant Quarantine, Embrapa Recusrsos Geneticos e Biotecnologia, Parque Estação Biológica, Norte Final W5, Caixa Postal 02372Brasilia, DF 70770-917BRA1 aut.2 aut.Departamento de Zoologia, UNB, Instituto de Ciencia Biológicas, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, ICC Sul, Sala AT-116, Asa NorteBrasília, DF 70910-900BRA3 aut.Intitut National de la Recherche Agronomique, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Campus International de Baillarguet, CS 3001634988 Montferrier-sur-LezFRA4 aut.5 aut.1-232011ENGINIST208663540005085995900100000© 2011 INIST-CNRS. All rights reserved.2 p.3/411-0504765PAExperimental & applied acarologyDEUTaxonomic misidentification of the specimens used to obtain DNA sequences is a growing problem reported for different groups of organisms, which threatens the utility of the deposited sequences in public DNA databases. This paper provides new evidence of misidentifications in molecular DNA public databases in phytophagous mites of the Tetranychidae family belonging to the group Tetranychus (Tetranychus). Several species in this group are of economic and quarantine importance in agriculture and among them Tetranychus urticae, a highly polyphagous mite causing outbreaks in many crops worldwide, is certainly the most studied. We analyzed and evaluated the identity of 105 GenBank accessions of ITS2 rDNA and 138 COI mtDNA sequences which were deposited as T. urticae and those of 14 other taxa morphologically closely related to Tetranychus sensu stricto. In addition, ITS2 and COI sequences of 18 T. urticae samples collected for this study and identified by morphological criteria, were generated and included in the analyzed dataset. Among the deposited sequences in the GenBank database, numerous cases of apparently mistaken identities were identified in the group Tetranychus s. str., especially between T. urticae, T. cinnabarinus, T. kanzawai and T. truncatus. Unreliable sequences (misidentified or dubious) were estimated at nearly 30%. In particular the analysis supports the invalidity of the controversial species status of T. cinnabarinus. More generally, it highlights the need of using combined morphological and molecular approaches to guarantee solid species diagnostics for reliable sequence accessions in public databases.002A12GEtude critique01Critical study01Estudio crítico01DNA02DNA02DNA02Base de données03Database03Base dato03Cytochrome-c oxidaseFE04Cytochrome-c oxidaseFE04Cytochrome-c oxidaseFE04Systématique moléculaire05Molecular systematics05Taxonomía molecular05Déprédateur06Pest06Plaga06TetranychusNS55TetranychusNS55TetranychusNS55OxidoreductasesFEOxidoreductasesFEOxidoreductasesFEEnzymeFEEnzymeFEEnzimaFETetranychidaeNSTetranychidaeNSTetranychidaeNSActinedidaNSActinedidaNSActinedidaNSAcariformesNSAcariformesNSAcariformesNSAcariNSAcariNSAcariNSArachnidaNSArachnidaNSArachnidaNSArthropodaNSArthropodaNSArthropodaNSInvertebrataNSInvertebrataNSInvertebrataNS346OTOOTOPASCAL 11-0504765 INISTA critical review on some closely related species of Tetranychus sensu stricto (Acari: Tetranychidae) in the public DNA sequences databasesDE MENDONCA (Renata S.); NAVIA (Denise); DINIZ (Ivone R.); AUGER (Philippe); NAVAJAS (Maria)Plant Quarantine, Embrapa Recusrsos Geneticos e Biotecnologia, Parque Estação Biológica, Norte Final W5, Caixa Postal 02372/Brasilia, DF 70770-917/Brésil (1 aut., 2 aut.); Departamento de Zoologia, UNB, Instituto de Ciencia Biológicas, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, ICC Sul, Sala AT-116, Asa Norte/Brasília, DF 70910-900/Brésil (3 aut.); Intitut National de la Recherche Agronomique, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Campus International de Baillarguet, CS 30016/34988 Montferrier-sur-Lez/France (4 aut., 5 aut.)
Publication en série; Niveau analytique
Experimental & applied acarology; ISSN 0168-8162; Coden EAACEM; Allemagne; Da. 2011; Vol. 55; No. 1; Pp. 1-23; Bibl. 2 p.3/4AnglaisTaxonomic misidentification of the specimens used to obtain DNA sequences is a growing problem reported for different groups of organisms, which threatens the utility of the deposited sequences in public DNA databases. This paper provides new evidence of misidentifications in molecular DNA public databases in phytophagous mites of the Tetranychidae family belonging to the group Tetranychus (Tetranychus). Several species in this group are of economic and quarantine importance in agriculture and among them Tetranychus urticae, a highly polyphagous mite causing outbreaks in many crops worldwide, is certainly the most studied. We analyzed and evaluated the identity of 105 GenBank accessions of ITS2 rDNA and 138 COI mtDNA sequences which were deposited as T. urticae and those of 14 other taxa morphologically closely related to Tetranychus sensu stricto. In addition, ITS2 and COI sequences of 18 T. urticae samples collected for this study and identified by morphological criteria, were generated and included in the analyzed dataset. Among the deposited sequences in the GenBank database, numerous cases of apparently mistaken identities were identified in the group Tetranychus s. str., especially between T. urticae, T. cinnabarinus, T. kanzawai and T. truncatus. Unreliable sequences (misidentified or dubious) were estimated at nearly 30%. In particular the analysis supports the invalidity of the controversial species status of T. cinnabarinus. More generally, it highlights the need of using combined morphological and molecular approaches to guarantee solid species diagnostics for reliable sequence accessions in public databases.002A12GEtude critique; DNA; Base de données; Cytochrome-c oxidase; Systématique moléculaire; Déprédateur; TetranychusOxidoreductases; Enzyme; Tetranychidae; Actinedida; Acariformes; Acari; Arachnida; Arthropoda; InvertebrataCritical study; DNA; Database; Cytochrome-c oxidase; Molecular systematics; Pest; TetranychusOxidoreductases; Enzyme; Tetranychidae; Actinedida; Acariformes; Acari; Arachnida; Arthropoda; InvertebrataEstudio crítico; DNA; Base dato; Cytochrome-c oxidase; Taxonomía molecular; Plaga; TetranychusINIST-20866.35400050859959001011-0504765 001B09 Proposal that Mycobacterium massiliense and Mycobacterium bolletii be united and reclassified as Mycobacterium abscessus subsp. bolletii comb. nov., designation of Mycobacterium abscessus subsp. abscessus subsp. nov. and emended description of Mycobacterium abscessusSylvia Cardoso LeaoDepartamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São PauloSão PauloBRA1 aut.Enrico TortoliCentro Regionale di Riferimento per la Diagnostica dei Micobatteri, Laboratorio di Microbiologia e Virologia, Ospedale di CareggiFirenzeITA2 aut.Jean Paul EuzebySociété de Bactériologie Systématique et Vétérinaire and École Nationale Vétérinaire de Toulouse, BP 8761431076 ToulouseFRA3 aut.Maria Jesus GarciaDepartamento de Medicina Preventiva, Facultad de Medicina, Universidad Autonoma de MadridMadridESP4 aut.12-00012042011PASCAL 12-0001204 INISTPascal:12-0001204000D841466-5026Int. j. syst. evol. microbiol. : (Print)International journal of systematic and evolutionary microbiology : (Print)DescriptionMycobacterium abscessusNew speciesTaxonomic reviewMycobacterium abscessusRévision taxonomiqueEspèce nouvelleDescription
The names 'Mycobacterium abscessus subsp. abscessus' and 'Mycobacterium abscessus subsp. massiliense', proposed by Leao et al. (2009, J Clin Microbiol 47, 2691-2698), cannot be validly published. The purpose of this report is to provide a description in accordance with the Rules of the Bacteriological Code (1990 Revision). Moreover, the proposal of the name 'Mycobacterium abscessus subsp. massiliense' is contrary to Rule 38 and the correct name of this taxon, at the rank of subspecies, is Mycobacterium abscessus subsp. bolletii comb. nov. A description of Mycobacterium abscessus subsp. abscessus subsp. nov. and an emended description of Mycobacterium abscessus are also given.
1466-5026Int. j. syst. evol. microbiol. : (Print)61p. 9Proposal that Mycobacterium massiliense and Mycobacterium bolletii be united and reclassified as Mycobacterium abscessus subsp. bolletii comb. nov., designation of Mycobacterium abscessus subsp. abscessus subsp. nov. and emended description of Mycobacterium abscessusCARDOSO LEAO (Sylvia)TORTOLI (Enrico)EUZEBY (Jean Paul)GARCIA (Maria Jesus)Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São PauloSão PauloBRA1 aut.Centro Regionale di Riferimento per la Diagnostica dei Micobatteri, Laboratorio di Microbiologia e Virologia, Ospedale di CareggiFirenzeITA2 aut.Société de Bactériologie Systématique et Vétérinaire and École Nationale Vétérinaire de Toulouse, BP 8761431076 ToulouseFRA3 aut.Departamento de Medicina Preventiva, Facultad de Medicina, Universidad Autonoma de MadridMadridESP4 aut.2311-23132011ENGINIST97753540001912144204800000© 2012 INIST-CNRS. All rights reserved.1/2 p.12-0001204PAInternational journal of systematic and evolutionary microbiology : (Print)GBRThe names 'Mycobacterium abscessus subsp. abscessus' and 'Mycobacterium abscessus subsp. massiliense', proposed by Leao et al. (2009, J Clin Microbiol 47, 2691-2698), cannot be validly published. The purpose of this report is to provide a description in accordance with the Rules of the Bacteriological Code (1990 Revision). Moreover, the proposal of the name 'Mycobacterium abscessus subsp. massiliense' is contrary to Rule 38 and the correct name of this taxon, at the rank of subspecies, is Mycobacterium abscessus subsp. bolletii comb. nov. A description of Mycobacterium abscessus subsp. abscessus subsp. nov. and an emended description of Mycobacterium abscessus are also given.002A05B02Mycobacterium abscessusNS01Mycobacterium abscessusNS01Mycobacterium abscessusNS01Révision taxonomique05Taxonomic review05Revisión taxonómica05Espèce nouvelle07New species07Especie nueva07Description08Description08Descripción08MycobacteriaceaeNSMycobacteriaceaeNSMycobacteriaceaeNSMycobacterialesNSMycobacterialesNSMycobacterialesNSActinomycetesNSActinomycetesNSActinomycetesNSBactérieBacteriaBacteriaSystématiqueTaxonomySistemática002OTOOTOPASCAL 12-0001204 INISTProposal that Mycobacterium massiliense and Mycobacterium bolletii be united and reclassified as Mycobacterium abscessus subsp. bolletii comb. nov., designation of Mycobacterium abscessus subsp. abscessus subsp. nov. and emended description of Mycobacterium abscessusCARDOSO LEAO (Sylvia); TORTOLI (Enrico); EUZEBY (Jean Paul); GARCIA (Maria Jesus)Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo/São Paulo/Brésil (1 aut.); Centro Regionale di Riferimento per la Diagnostica dei Micobatteri, Laboratorio di Microbiologia e Virologia, Ospedale di Careggi/Firenze/Italie (2 aut.); Société de Bactériologie Systématique et Vétérinaire and École Nationale Vétérinaire de Toulouse, BP 87614/31076 Toulouse/France (3 aut.); Departamento de Medicina Preventiva, Facultad de Medicina, Universidad Autonoma de Madrid/Madrid/Espagne (4 aut.)
Publication en série; Niveau analytique
International journal of systematic and evolutionary microbiology : (Print); ISSN 1466-5026; Royaume-Uni; Da. 2011; Vol. 61; No. p. 9; Pp. 2311-2313; Bibl. 1/2 p.AnglaisThe names 'Mycobacterium abscessus subsp. abscessus' and 'Mycobacterium abscessus subsp. massiliense', proposed by Leao et al. (2009, J Clin Microbiol 47, 2691-2698), cannot be validly published. The purpose of this report is to provide a description in accordance with the Rules of the Bacteriological Code (1990 Revision). Moreover, the proposal of the name 'Mycobacterium abscessus subsp. massiliense' is contrary to Rule 38 and the correct name of this taxon, at the rank of subspecies, is Mycobacterium abscessus subsp. bolletii comb. nov. A description of Mycobacterium abscessus subsp. abscessus subsp. nov. and an emended description of Mycobacterium abscessus are also given.002A05B02Mycobacterium abscessus; Révision taxonomique; Espèce nouvelle; DescriptionMycobacteriaceae; Mycobacteriales; Actinomycetes; Bactérie; SystématiqueMycobacterium abscessus; Taxonomic review; New species; DescriptionMycobacteriaceae; Mycobacteriales; Actinomycetes; Bacteria; TaxonomyMycobacterium abscessus; Revisión taxonómica; Especie nueva; DescripciónINIST-9775.35400019121442048012-0001204 001B10 Application of the method of manufactured solutions to the verification of a pressure-based finite-volume numerical schemeJoao Marcelo VedovotoFaculty of Mechanical Engineering, Federal University of UberlândiaUberlândia, MG 38400-902BRA1 aut.2 aut.Aristeu Neto Da SilveiraFaculty of Mechanical Engineering, Federal University of UberlândiaUberlândia, MG 38400-902BRA1 aut.2 aut.Arnaud MuraInstitut Pprime, UPR3346 CNRS, ENSMA, BP4010986961 PoitiersFRA3 aut.Luis Fernando Figueira Da SilvaPontificia Universidade Católica do Rio de Janeiro, Department of Mechanical EngineeringRio de Janeiro, RJ 22953-900BRA4 aut.12-00012492011PASCAL 12-0001249 INISTPascal:12-0001249000D830045-7930Comput. fluidsComputers & fluidsCombustionFinite volume methodIncompressible fluidMixing layerModelingNumerical simulationPredictor corrector methodProjection methodTurbulent flowEcoulement turbulentFluide incompressibleCouche mélangeMéthode prédicteur correcteurMéthode volume finiMéthode projectionModélisationSimulation numériqueCombustionDensité variable
The present study reports a numerical procedure based on a series of tests that make use of the method of manufactured solutions (MMS) and allow to evaluate the effective numerical performance with respect to the theoretical order of accuracy. The method is applied to a pressure-based finite volume numerical scheme suited to variable density flows representative of those encountered in combustion applications. The algorithm is based on a predictor-corrector time integration scheme that employs a projection method for the momentum equations. A physically consistent constraint is retained to ensure that the velocity field is solved correctly. The MMS application shows that the combination of this velocity constraint and the variable-coefficient Poisson solver is of fundamental importance to ensure both the numerical stability and the expected order of accuracy. Especially, the resort to an inner iteration procedure gives rise to undeniable improvements in terms of both the order of accuracy and error magnitude. The MMS applications confirm the interest of the method to conduct a preliminary check of the performance of any numerical algorithm applied to both fully incompressible and variable density flows. Finally, the analysis is ended by the application of the retained pressure-based finite-volume scheme to the numerical simulation of mixing layers featuring increasing values of the density contrast. The corresponding results shed some light onto the stability and robustness of the numerical scheme, important issues that are not addressed through MMS analyses.
0045-7930CPFLBIComput. fluids511Application of the method of manufactured solutions to the verification of a pressure-based finite-volume numerical schemeVEDOVOTO (Joao Marcelo)DA SILVEIRA (Aristeu NETO)MURA (Arnaud)FIGUEIRA DA SILVA (Luis Fernando)Faculty of Mechanical Engineering, Federal University of UberlândiaUberlândia, MG 38400-902BRA1 aut.2 aut.Institut Pprime, UPR3346 CNRS, ENSMA, BP4010986961 PoitiersFRA3 aut.Pontificia Universidade Católica do Rio de Janeiro, Department of Mechanical EngineeringRio de Janeiro, RJ 22953-900BRA4 aut.85-992011ENGINIST155753540005099764300800000© 2012 INIST-CNRS. All rights reserved.61 ref.12-0001249PAComputers & fluidsGBRThe present study reports a numerical procedure based on a series of tests that make use of the method of manufactured solutions (MMS) and allow to evaluate the effective numerical performance with respect to the theoretical order of accuracy. The method is applied to a pressure-based finite volume numerical scheme suited to variable density flows representative of those encountered in combustion applications. The algorithm is based on a predictor-corrector time integration scheme that employs a projection method for the momentum equations. A physically consistent constraint is retained to ensure that the velocity field is solved correctly. The MMS application shows that the combination of this velocity constraint and the variable-coefficient Poisson solver is of fundamental importance to ensure both the numerical stability and the expected order of accuracy. Especially, the resort to an inner iteration procedure gives rise to undeniable improvements in terms of both the order of accuracy and error magnitude. The MMS applications confirm the interest of the method to conduct a preliminary check of the performance of any numerical algorithm applied to both fully incompressible and variable density flows. Finally, the analysis is ended by the application of the retained pressure-based finite-volume scheme to the numerical simulation of mixing layers featuring increasing values of the density contrast. The corresponding results shed some light onto the stability and robustness of the numerical scheme, important issues that are not addressed through MMS analyses.001D06D02E1230Ecoulement turbulent02Turbulent flow02Flujo turbulento02Fluide incompressible06Incompressible fluid06Fluido incompresible06Couche mélange08Mixing layer08Capa mezcladura08Méthode prédicteur correcteur09Predictor corrector method09Método predictor corrector09Méthode volume fini12Finite volume method12Método volumen finito12Méthode projection13Projection method13Método proyección13Modélisation15Modeling15Modelización15Simulation numérique16Numerical simulation16Simulación numérica16Combustion23Combustion23Combustión23Densité variableINC82002PASCAL 12-0001249 INISTApplication of the method of manufactured solutions to the verification of a pressure-based finite-volume numerical schemeVEDOVOTO (Joao Marcelo); DA SILVEIRA (Aristeu NETO); MURA (Arnaud); FIGUEIRA DA SILVA (Luis Fernando)Faculty of Mechanical Engineering, Federal University of Uberlândia/Uberlândia, MG 38400-902/Brésil (1 aut., 2 aut.); Institut Pprime, UPR3346 CNRS, ENSMA, BP40109/86961 Poitiers/France (3 aut.); Pontificia Universidade Católica do Rio de Janeiro, Department of Mechanical Engineering/Rio de Janeiro, RJ 22953-900/Brésil (4 aut.)
Publication en série; Niveau analytique
Computers & fluids; ISSN 0045-7930; Coden CPFLBI; Royaume-Uni; Da. 2011; Vol. 51; No. 1; Pp. 85-99; Bibl. 61 ref.AnglaisThe present study reports a numerical procedure based on a series of tests that make use of the method of manufactured solutions (MMS) and allow to evaluate the effective numerical performance with respect to the theoretical order of accuracy. The method is applied to a pressure-based finite volume numerical scheme suited to variable density flows representative of those encountered in combustion applications. The algorithm is based on a predictor-corrector time integration scheme that employs a projection method for the momentum equations. A physically consistent constraint is retained to ensure that the velocity field is solved correctly. The MMS application shows that the combination of this velocity constraint and the variable-coefficient Poisson solver is of fundamental importance to ensure both the numerical stability and the expected order of accuracy. Especially, the resort to an inner iteration procedure gives rise to undeniable improvements in terms of both the order of accuracy and error magnitude. The MMS applications confirm the interest of the method to conduct a preliminary check of the performance of any numerical algorithm applied to both fully incompressible and variable density flows. Finally, the analysis is ended by the application of the retained pressure-based finite-volume scheme to the numerical simulation of mixing layers featuring increasing values of the density contrast. The corresponding results shed some light onto the stability and robustness of the numerical scheme, important issues that are not addressed through MMS analyses.001D06D02E1; 230Ecoulement turbulent; Fluide incompressible; Couche mélange; Méthode prédicteur correcteur; Méthode volume fini; Méthode projection; Modélisation; Simulation numérique; Combustion; Densité variableTurbulent flow; Incompressible fluid; Mixing layer; Predictor corrector method; Finite volume method; Projection method; Modeling; Numerical simulation; CombustionFlujo turbulento; Fluido incompresible; Capa mezcladura; Método predictor corrector; Método volumen finito; Método proyección; Modelización; Simulación numérica; CombustiónINIST-15575.35400050997643008012-0001249 001B11 Ionically conducting DNA-based membranes for eletrochromic devicesAgnieszka PawlickaIQSC-USP, Av. Trabalhador São carlense, 40013566-590 São CarlosBRA1 aut.2 aut.3 aut.Franciani SentaninIQSC-USP, Av. Trabalhador São carlense, 40013566-590 São CarlosBRA1 aut.2 aut.3 aut.Alessandra FirminoIQSC-USP, Av. Trabalhador São carlense, 40013566-590 São CarlosBRA1 aut.2 aut.3 aut.James G. GroteAFRL/RXPS, 3005 Hobson Way, Wright-Patterson Air Force BaseOH 45433-7707USA4 aut.François KajzarFaculty of Applied Chemistry and Materials Science, University Politehnica BucharestBucharestROU5 aut.6 aut.Université d'Angers, Institut des Sciences et Technologies Moléculaires d'Angers, MOLTECH Anjou - UMR CNRS 6200, Equipe Interaction Moléculaire Optique non Linéaire et Structuration MINOS 2, Bd Lavoisier49045 AngersFRA5 aut.Ileana RauFaculty of Applied Chemistry and Materials Science, University Politehnica BucharestBucharestROU5 aut.6 aut.12-00055222011PASCAL 12-0005522 INISTPascal:12-0005522000D820379-6779Synth. met.Synthetic metalsAniline derivative polymerAromatic polymerCharge densityConducting polymersDNADoped polymerElectrochemical characteristicElectrochromic deviceElectrochromismExperimental studyGlycerolIonic conductivityIron III HexacyanoferratesNyquist diagramPlasticizerPolymer solid electrolyteStyrenesulfonate polymerTemperature effectThermal stabilityThiophene derivative polymerTime curveTransparencyDispositif électrochromiqueThiophène dérivé polymèrePolymère dopéPolymère aromatiqueStyrènesulfonate polymèreAniline dérivé polymèrePolymère conducteurFer III HexacyanoferrateDNAPlastifiantGlycérolElectrolyte solide polymèreConductivité ioniqueEffet températureDiagramme NyquistStabilité thermiqueTransparenceCaractéristique électrochimiqueDensité chargeCaractéristique temporelleElectrochromismeEtude expérimentaleElectrolyte gel polymère
Ionically conductive membranes based on plasticized DNA with glycerol and containing conducting polymers such as: either PEDOT:PSS (poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)), POEA (poly (o-ethoxyaniline)) or electrochromic dye Prussian Blue (PB) were prepared, characterized and applied in electrochromic devices. The results of ionic conductivity measurements for the studied membranes varied, depending on the added polymer or dye, from 3 x 10-5 S/cm for the pure DNA-based samples to 5.1 x 10-4S/cm for the samples containing PEDOT:PSS or PB, at room temperature. The samples exhibit a good thermal stability up to 170°C. with variable transparency range, depending on the added molecule. Moreover, the samples exhibit also a semicrystalline structure and in the case of pure DNA-and DNA-PB-based compounds two glass transition temperatures of -75 C and 60 C were observed. The membranes were applied in small electrochromic devices and have shown an up to 15% transmission change from colored to bleached states. The inserted/extracted charges were 0.7-3.0 mC/cm2 after 15 s of applied potential of -2.5 V for membranes with thickness of 72-80 μm. All obtained results indicate that DNA-based gel-polymer electrolytes (GPEs) are good candidates to be used in electrochemical devices.
0379-6779SYMEDZSynth. met.16121-22Ionically conducting DNA-based membranes for eletrochromic devicesPAWLICKA (Agnieszka)SENTANIN (Franciani)FIRMINO (Alessandra)GROTE (James G.)KAJZAR (François)RAU (Ileana)IQSC-USP, Av. Trabalhador São carlense, 40013566-590 São CarlosBRA1 aut.2 aut.3 aut.AFRL/RXPS, 3005 Hobson Way, Wright-Patterson Air Force BaseOH 45433-7707USA4 aut.Faculty of Applied Chemistry and Materials Science, University Politehnica BucharestBucharestROU5 aut.6 aut.Université d'Angers, Institut des Sciences et Technologies Moléculaires d'Angers, MOLTECH Anjou - UMR CNRS 6200, Equipe Interaction Moléculaire Optique non Linéaire et Structuration MINOS 2, Bd Lavoisier49045 AngersFRA5 aut.2329-23342011ENGINIST183153540005056304902400000© 2012 INIST-CNRS. All rights reserved.33 ref.12-0005522PASynthetic metalsNLDIonically conductive membranes based on plasticized DNA with glycerol and containing conducting polymers such as: either PEDOT:PSS (poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)), POEA (poly (o-ethoxyaniline)) or electrochromic dye Prussian Blue (PB) were prepared, characterized and applied in electrochromic devices. The results of ionic conductivity measurements for the studied membranes varied, depending on the added polymer or dye, from 3 x 10-5 S/cm for the pure DNA-based samples to 5.1 x 10-4S/cm for the samples containing PEDOT:PSS or PB, at room temperature. The samples exhibit a good thermal stability up to 170°C. with variable transparency range, depending on the added molecule. Moreover, the samples exhibit also a semicrystalline structure and in the case of pure DNA-and DNA-PB-based compounds two glass transition temperatures of -75 C and 60 C were observed. The membranes were applied in small electrochromic devices and have shown an up to 15% transmission change from colored to bleached states. The inserted/extracted charges were 0.7-3.0 mC/cm2 after 15 s of applied potential of -2.5 V for membranes with thickness of 72-80 μm. All obtained results indicate that DNA-based gel-polymer electrolytes (GPEs) are good candidates to be used in electrochemical devices.001D10A08001D03F15Dispositif électrochromique01Electrochromic device01Dispositivo electrocrómico01Thiophène dérivé polymèreNK03Thiophene derivative polymerNK03Tiofeno derivado polímeroNK03Polymère dopé04Doped polymer04Polímero dopado04Polymère aromatique05Aromatic polymer05Polímero aromático05Styrènesulfonate polymèreSECNK06Styrenesulfonate polymerSECNK06Estireno sulfonato polímeroSECNK06Aniline dérivé polymèreNK07Aniline derivative polymerNK07Anilina derivado polímeroNK07Polymère conducteur08Conducting polymers08Fer III HexacyanoferrateNCNA09Iron III HexacyanoferratesNCNA09Hierro III HexacianoferratoNCNA09DNA11DNA11DNA11Plastifiant12Plasticizer12Plastificante12GlycérolACTNKFR13GlycerolACTNKFR13GlicerolACTNKFR13Electrolyte solide polymère14Polymer solid electrolyte14Electrólito sólido polímero14Conductivité ionique16Ionic conductivity16Conductividad iónica16Effet température17Temperature effect17Efecto temperatura17Diagramme Nyquist18Nyquist diagram18Diagrama Nyquist18Stabilité thermique19Thermal stability19Estabilidad térmica19Transparence21Transparency21Transparencia21Caractéristique électrochimique22Electrochemical characteristic22Característica electroquímica22Densité charge23Charge density23Densidad carga23Caractéristique temporelle24Time curve24Característica temporal24Electrochromisme25Electrochromism25Electrocromismo25Etude expérimentale27Experimental study27Estudio experimental27Electrolyte gel polymèreINC32Propriété électrique15Electrical properties15Propiedad eléctrica15Propriété optique20Optical properties20Propiedad óptica20002PSIPSIPASCAL 12-0005522 INISTIonically conducting DNA-based membranes for eletrochromic devicesPAWLICKA (Agnieszka); SENTANIN (Franciani); FIRMINO (Alessandra); GROTE (James G.); KAJZAR (François); RAU (Ileana)IQSC-USP, Av. Trabalhador São carlense, 400/13566-590 São Carlos/Brésil (1 aut., 2 aut., 3 aut.); AFRL/RXPS, 3005 Hobson Way, Wright-Patterson Air Force Base/OH 45433-7707/Etats-Unis (4 aut.); Faculty of Applied Chemistry and Materials Science, University Politehnica Bucharest/Bucharest/Roumanie (5 aut., 6 aut.); Université d'Angers, Institut des Sciences et Technologies Moléculaires d'Angers, MOLTECH Anjou - UMR CNRS 6200, Equipe Interaction Moléculaire Optique non Linéaire et Structuration MINOS 2, Bd Lavoisier/49045 Angers/France (5 aut.)
Publication en série; Niveau analytique
Synthetic metals; ISSN 0379-6779; Coden SYMEDZ; Pays-Bas; Da. 2011; Vol. 161; No. 21-22; Pp. 2329-2334; Bibl. 33 ref.AnglaisIonically conductive membranes based on plasticized DNA with glycerol and containing conducting polymers such as: either PEDOT:PSS (poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)), POEA (poly (o-ethoxyaniline)) or electrochromic dye Prussian Blue (PB) were prepared, characterized and applied in electrochromic devices. The results of ionic conductivity measurements for the studied membranes varied, depending on the added polymer or dye, from 3 x 10-5 S/cm for the pure DNA-based samples to 5.1 x 10-4S/cm for the samples containing PEDOT:PSS or PB, at room temperature. The samples exhibit a good thermal stability up to 170°C. with variable transparency range, depending on the added molecule. Moreover, the samples exhibit also a semicrystalline structure and in the case of pure DNA-and DNA-PB-based compounds two glass transition temperatures of -75 C and 60 C were observed. The membranes were applied in small electrochromic devices and have shown an up to 15% transmission change from colored to bleached states. The inserted/extracted charges were 0.7-3.0 mC/cm2 after 15 s of applied potential of -2.5 V for membranes with thickness of 72-80 μm. All obtained results indicate that DNA-based gel-polymer electrolytes (GPEs) are good candidates to be used in electrochemical devices.001D10A08; 001D03F15Dispositif électrochromique; Thiophène dérivé polymère; Polymère dopé; Polymère aromatique; Styrènesulfonate polymère; Aniline dérivé polymère; Polymère conducteur; Fer III Hexacyanoferrate; DNA; Plastifiant; Glycérol; Electrolyte solide polymère; Conductivité ionique; Effet température; Diagramme Nyquist; Stabilité thermique; Transparence; Caractéristique électrochimique; Densité charge; Caractéristique temporelle; Electrochromisme; Etude expérimentale; Electrolyte gel polymèrePropriété électrique; Propriété optiqueElectrochromic device; Thiophene derivative polymer; Doped polymer; Aromatic polymer; Styrenesulfonate polymer; Aniline derivative polymer; Conducting polymers; Iron III Hexacyanoferrates; DNA; Plasticizer; Glycerol; Polymer solid electrolyte; Ionic conductivity; Temperature effect; Nyquist diagram; Thermal stability; Transparency; Electrochemical characteristic; Charge density; Time curve; Electrochromism; Experimental studyElectrical properties; Optical propertiesDispositivo electrocrómico; Tiofeno derivado polímero; Polímero dopado; Polímero aromático; Estireno sulfonato polímero; Anilina derivado polímero; Hierro III Hexacianoferrato; DNA; Plastificante; Glicerol; Electrólito sólido polímero; Conductividad iónica; Efecto temperatura; Diagrama Nyquist; Estabilidad térmica; Transparencia; Característica electroquímica; Densidad carga; Característica temporal; Electrocromismo; Estudio experimentalINIST-18315.35400050563049024012-0005522 001B12 Radiolysis of frozen methanol by heavy cosmic ray and energetic solar particle analoguesA. L. F. De BarrosDepartamento de Disciplinas Básicas e Gerais, CEFET-RJ, Av. Maracanã 229, 20271-110 Rio de Janeiro, RJBRA1 aut.Centre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 513314070 CaenFRA1 aut.2 aut.4 aut.5 aut.A. DomarackaCentre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 513314070 CaenFRA1 aut.2 aut.4 aut.5 aut.D. P. P. AndradeUniversidade do Vale do Paraiba, Av. Shishima Hifumi2911 - Urbanova, São José do Campos, SPBRA3 aut.P. BoduchCentre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 513314070 CaenFRA1 aut.2 aut.4 aut.5 aut.H. RothardCentre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 513314070 CaenFRA1 aut.2 aut.4 aut.5 aut.E. F. Da SilveiraDepartamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente 22522451-900 Rio de Janeiro, RJBRA6 aut.12-00073592011PASCAL 12-0007359 INISTPascal:12-0007359000D810035-8711Mon. Not. R. Astron. Soc.Monthly Notices of the Royal Astronomical SocietyAbsorbanceCircumstellar matterCometsCosmic irradiationCosmic radiationCross sectionsEnergeticsEnergy transferFourier transformationHeavy ionsIceInfrared spectroscopyIon beamsIon irradiationMethanolPower lawSolar particlesSolar systemStopping powerMéthanolRayonnement cosmiqueParticule solaireIon lourdIrradiation ionEnergétiqueTransfert énergieIrradiation cosmiqueGlaceComèteSystème solaireSpectrométrie IRTransformation FourierFaisceau ionAbsorbanceSection efficacePouvoir arrêtLoi puissanceMatière circumstellaire
The chemical and physical effects induced by fast heavy ion irradiation on frozen pure methanol (CH3 OH) at 15 K were studied. These energetic ions can simulate the energy transfer processes that occur by cosmic ray irradiation of interstellar ices, comets and icy Solar system bodies. The analysis was made by infrared spectroscopy (Fourier transform infrared) before and after irradiation, with 16-MeV 16O5+ , 220-MeV 16O7+, 606-MeV 65Zn20+ and 774-MeV 86Kr31+ ion beams. Integrated values of the absorbance of the main methanol bands were determined. The induced CH3OH dissociation gives rise to the formation of molecular species, particularly H2CO, CH2OH, CH4, CO, CO2, HCO and HCOOCH3. Their formation and dissociation cross-sections were determined. H2CO and CH4 molecules are in general the most abundant new products of the four beams analysed. Except for the HCO and CH2OH species, cross-sections increased with the electronic stopping power, roughly as σ ∼ S3/2e. The G values for CH3OH destruction by fast heavy ion irradiation with Zn and Kr beams were found to be considerably larger than those for oxygen, helium or hydrogen. As an astrophysical implication, the S3/2e power law should be very helpful for predicting the CH3OH formation and dissociation cross-sections for other ion beam projectiles and energies. As astrophysical point of view, the analysis of the predictions reveals the unexpected importance of iron and some other heavy ion constituents of cosmic rays in astrochemistry.
0035-8711MNRAA4Mon. Not. R. Astron. Soc.4182Radiolysis of frozen methanol by heavy cosmic ray and energetic solar particle analoguesDE BARROS (A. L. F.)DOMARACKA (A.)ANDRADE (D. P. P.)BODUCH (P.)ROTHARD (H.)DA SILVEIRA (E. F.)Departamento de Disciplinas Básicas e Gerais, CEFET-RJ, Av. Maracanã 229, 20271-110 Rio de Janeiro, RJBRA1 aut.Centre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 513314070 CaenFRA1 aut.2 aut.4 aut.5 aut.Universidade do Vale do Paraiba, Av. Shishima Hifumi2911 - Urbanova, São José do Campos, SPBRA3 aut.Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente 22522451-900 Rio de Janeiro, RJBRA6 aut.1363-13742011ENGINIST20673540005056460905400000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0007359PAMonthly Notices of the Royal Astronomical SocietyUSAThe chemical and physical effects induced by fast heavy ion irradiation on frozen pure methanol (CH3 OH) at 15 K were studied. These energetic ions can simulate the energy transfer processes that occur by cosmic ray irradiation of interstellar ices, comets and icy Solar system bodies. The analysis was made by infrared spectroscopy (Fourier transform infrared) before and after irradiation, with 16-MeV 16O5+ , 220-MeV 16O7+, 606-MeV 65Zn20+ and 774-MeV 86Kr31+ ion beams. Integrated values of the absorbance of the main methanol bands were determined. The induced CH3OH dissociation gives rise to the formation of molecular species, particularly H2CO, CH2OH, CH4, CO, CO2, HCO and HCOOCH3. Their formation and dissociation cross-sections were determined. H2CO and CH4 molecules are in general the most abundant new products of the four beams analysed. Except for the HCO and CH2OH species, cross-sections increased with the electronic stopping power, roughly as σ ∼ S3/2e. The G values for CH3OH destruction by fast heavy ion irradiation with Zn and Kr beams were found to be considerably larger than those for oxygen, helium or hydrogen. As an astrophysical implication, the S3/2e power law should be very helpful for predicting the CH3OH formation and dissociation cross-sections for other ion beam projectiles and energies. As astrophysical point of view, the analysis of the predictions reveals the unexpected importance of iron and some other heavy ion constituents of cosmic rays in astrochemistry.001E03MéthanolNK26MethanolNK26Rayonnement cosmique27Cosmic radiation27Particule solaire28Solar particles28Ion lourd29Heavy ions29Irradiation ion30Ion irradiation30Irradiación ión30Energétique31Energetics31Energética31Transfert énergie32Energy transfer32Irradiation cosmique33Cosmic irradiation33Irradiación cósmica33Glace34Ice34Comète35Comets35Système solaire36Solar system36Spectrométrie IR37Infrared spectroscopy37Transformation Fourier38Fourier transformation38Faisceau ion39Ion beams39Absorbance40Absorbance40Absorbancia40Section efficace41Cross sections41Pouvoir arrêt42Stopping power42Loi puissance43Power law43Ley poder43Matière circumstellaire44Circumstellar matter44002OTOOTOPASCAL 12-0007359 INISTRadiolysis of frozen methanol by heavy cosmic ray and energetic solar particle analoguesDE BARROS (A. L. F.); DOMARACKA (A.); ANDRADE (D. P. P.); BODUCH (P.); ROTHARD (H.); DA SILVEIRA (E. F.)Departamento de Disciplinas Básicas e Gerais, CEFET-RJ, Av. Maracanã 229, 20271-110 Rio de Janeiro, RJ/Brésil (1 aut.); Centre de Recherche sur les Ions, les Matériaux et la Photonique (CEAICNRSI ENSICAENIUniversité de Caen-Basse Normandie), CIMAP-CIRIL-Ganil. Boulevard Henri Becquerel, BP 5133/14070 Caen/France (1 aut., 2 aut., 4 aut., 5 aut.); Universidade do Vale do Paraiba, Av. Shishima Hifumi/2911 - Urbanova, São José do Campos, SP/Brésil (3 aut.); Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente 225/22451-900 Rio de Janeiro, RJ/Brésil (6 aut.)
Publication en série; Niveau analytique
Monthly Notices of the Royal Astronomical Society; ISSN 0035-8711; Coden MNRAA4; Etats-Unis; Da. 2011; Vol. 418; No. 2; Pp. 1363-1374; Bibl. 3/4 p.AnglaisThe chemical and physical effects induced by fast heavy ion irradiation on frozen pure methanol (CH3 OH) at 15 K were studied. These energetic ions can simulate the energy transfer processes that occur by cosmic ray irradiation of interstellar ices, comets and icy Solar system bodies. The analysis was made by infrared spectroscopy (Fourier transform infrared) before and after irradiation, with 16-MeV 16O5+ , 220-MeV 16O7+, 606-MeV 65Zn20+ and 774-MeV 86Kr31+ ion beams. Integrated values of the absorbance of the main methanol bands were determined. The induced CH3OH dissociation gives rise to the formation of molecular species, particularly H2CO, CH2OH, CH4, CO, CO2, HCO and HCOOCH3. Their formation and dissociation cross-sections were determined. H2CO and CH4 molecules are in general the most abundant new products of the four beams analysed. Except for the HCO and CH2OH species, cross-sections increased with the electronic stopping power, roughly as σ ∼ S3/2e. The G values for CH3OH destruction by fast heavy ion irradiation with Zn and Kr beams were found to be considerably larger than those for oxygen, helium or hydrogen. As an astrophysical implication, the S3/2e power law should be very helpful for predicting the CH3OH formation and dissociation cross-sections for other ion beam projectiles and energies. As astrophysical point of view, the analysis of the predictions reveals the unexpected importance of iron and some other heavy ion constituents of cosmic rays in astrochemistry.001E03Méthanol; Rayonnement cosmique; Particule solaire; Ion lourd; Irradiation ion; Energétique; Transfert énergie; Irradiation cosmique; Glace; Comète; Système solaire; Spectrométrie IR; Transformation Fourier; Faisceau ion; Absorbance; Section efficace; Pouvoir arrêt; Loi puissance; Matière circumstellaireMethanol; Cosmic radiation; Solar particles; Heavy ions; Ion irradiation; Energetics; Energy transfer; Cosmic irradiation; Ice; Comets; Solar system; Infrared spectroscopy; Fourier transformation; Ion beams; Absorbance; Cross sections; Stopping power; Power law; Circumstellar matterIrradiación ión; Energética; Irradiación cósmica; Absorbancia; Ley poderINIST-2067.35400050564609054012-0007359 001B13 Genome-wide association study of HPV seropositivityDAN CHENInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.James D. MckayInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.Gary CliffordInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.Valérie GaborieauInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.Amélie ChabrierInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.Tim WaterboerInfection and Cancer Program, German Cancer Research Center (DKFZ)HeidelbergDEU6 aut.26 aut.David ZaridzeDepartment of Epidemiology and Prevention, N.N. Blokhin Cancer Research CenterMoscowRUS7 aut.Jolanta LissowskaDepartment of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Cancer Center and Institute of OncologyWarsawPOL8 aut.Peter RudnaiNational Institute of Environmental HealthBudapest 1097HUN9 aut.Eleonora FabianovaRegional Institute of Public HealthBanská BystricaSVK10 aut.Vladimir BenckoInstitute of Hygiene and Epidemiology, First Faculty of Medicine and General University Hospital, Charles UniversityPragueCZE11 aut.Vladimir JanoutPalacky UniversityOlomoucCZE12 aut.Lenka ForetovaDepartment of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer InstituteBrnoCZE13 aut.Ioan Nicolae MatesUniversity of Medicine and Pharmacy 'Carol DavilaBucharestROU14 aut.Neonila Szeszenia-DabrowskaDepartment of Epidemiology, Institute of Occupational MedicineLodzPOL15 aut.Maria Paula CuradoInternational Prevention Research Institute (IPRILyonFRA16 aut.25 aut.Sergio KoifmanNational School of Public Health/FIOCRUZRio de JaneiroBRA17 aut.Ana MenezesUniversidade Federal de PelotasPelotasBRA18 aut.Victor W Nsch-FilhoUniversidade de São PauloSão PauloBRA19 aut.20 aut.José Eluf-NetoUniversidade de São PauloSão PauloBRA19 aut.20 aut.Leticia Fernandez GarroteInstitute of Oncology and RadiobiologyHavanaCUB21 aut.Elena MatosAngel H. Roffo Oncology Institute, University of Buenos AiresBuenos AiresARG22 aut.Diana ZelenikaCentre National de Génotypage, Institut Génomique, Commissariat à l'énergie AtomiqueEvryFRA23 aut.24 aut.27 aut.Anne BolandCentre National de Génotypage, Institut Génomique, Commissariat à l'énergie AtomiqueEvryFRA23 aut.24 aut.27 aut.Paolo BoffettaInternational Prevention Research Institute (IPRILyonFRA16 aut.25 aut.The Tisch Cancer Institute Mount Sinai School of MedicineNew York, NYUSA25 aut.Michael PawlitaInfection and Cancer Program, German Cancer Research Center (DKFZ)HeidelbergDEU6 aut.26 aut.Mark LathropCentre National de Génotypage, Institut Génomique, Commissariat à l'énergie AtomiqueEvryFRA23 aut.24 aut.27 aut.Fondation Jean Dausset-CEPHParisFRA27 aut.Paul BrennanInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.12-00079322011PASCAL 12-0007932 INISTPascal:12-0007932000D800964-6906Hum. mol. genet. : (Print)Human molecular genetics : (Print)AssociationGeneticsHuman papillomavirusSeropositivityAssociationSéropositivitéGénétiquePapillomavirus humainEchelle du génome
High-risk α mucosal types of human papillomavirus (HPV) cause anogenital and oropharyngeal cancers, whereas β cutaneous HPV types (e.g. HPV8) have been implicated in non-melanoma skin cancer. Although antibodies against the capsid protein L1 of HPV are considered as markers of cumulative exposure, not all infected persons seroconvert. To identify common genetic variants that influence HPV seroconversion, we performed a two-stage genome-wide association study. Genome-wide genotyping of 316 015 single nucleotide polymorphisms was carried out using the Illumina HumanHap300 BeadChip in 4811 subjects from a central European case-control study of lung, head and neck and kidney cancer that had serology data available on 13 HPV types. Only one association met genome-wide significance criteria, namely that between HPV8 seropositivity and rs9357152 [odds ratio (OR) = 1.37, 95% confidence interval (CI) = 1.24-1.50 for the minor allele G; P = 1.2 x 10-10], a common genetic variant (minor allele frequency = 0.33) located within the major histocompatibility complex (MHC) II region at 6p21.32. This association was subsequently replicated in an independent set of 2344 subjects from a Latin American case-control study of head and neck cancer (OR = 1.35, 95% CI = 1.18-1.56, P = 2.2 x 10-5), yielding P = 1.3 x 10-14 in the combined analysis (P-heterogeneity = 0.87). No heterogeneity was noted by cancer status (controls/lung cancer cases/head and neck cancer cases/kidney cancer cases). This study provides a proof of principle that genetic variation plays a role in antibody reactivity to HPV infection.
0964-6906Hum. mol. genet. : (Print)2023Genome-wide association study of HPV seropositivityDAN CHENMCKAY (James D.)CLIFFORD (Gary)GABORIEAU (Valérie)CHABRIER (Amélie)WATERBOER (Tim)ZARIDZE (David)LISSOWSKA (Jolanta)RUDNAI (Peter)FABIANOVA (Eleonora)BENCKO (Vladimir)JANOUT (Vladimir)FORETOVA (Lenka)NICOLAE MATES (Ioan)SZESZENIA-DABROWSKA (Neonila)CURADO (Maria Paula)KOIFMAN (Sergio)MENEZES (Ana)WÜNSCH-FILHO (Victor)ELUF-NETO (José)FERNANDEZ GARROTE (Leticia)MATOS (Elena)ZELENIKA (Diana)BOLAND (Anne)BOFFETTA (Paolo)PAWLITA (Michael)LATHROP (Mark)BRENNAN (Paul)International Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.4 aut.5 aut.28 aut.Infection and Cancer Program, German Cancer Research Center (DKFZ)HeidelbergDEU6 aut.26 aut.Department of Epidemiology and Prevention, N.N. Blokhin Cancer Research CenterMoscowRUS7 aut.Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Cancer Center and Institute of OncologyWarsawPOL8 aut.National Institute of Environmental HealthBudapest 1097HUN9 aut.Regional Institute of Public HealthBanská BystricaSVK10 aut.Institute of Hygiene and Epidemiology, First Faculty of Medicine and General University Hospital, Charles UniversityPragueCZE11 aut.Palacky UniversityOlomoucCZE12 aut.Department of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer InstituteBrnoCZE13 aut.University of Medicine and Pharmacy 'Carol DavilaBucharestROU14 aut.Department of Epidemiology, Institute of Occupational MedicineLodzPOL15 aut.International Prevention Research Institute (IPRILyonFRA16 aut.25 aut.National School of Public Health/FIOCRUZRio de JaneiroBRA17 aut.Universidade Federal de PelotasPelotasBRA18 aut.Universidade de São PauloSão PauloBRA19 aut.20 aut.Institute of Oncology and RadiobiologyHavanaCUB21 aut.Angel H. Roffo Oncology Institute, University of Buenos AiresBuenos AiresARG22 aut.Centre National de Génotypage, Institut Génomique, Commissariat à l'énergie AtomiqueEvryFRA23 aut.24 aut.27 aut.The Tisch Cancer Institute Mount Sinai School of MedicineNew York, NYUSA25 aut.Fondation Jean Dausset-CEPHParisFRA27 aut.4714-47232011ENGINIST225403540005059070301700000© 2012 INIST-CNRS. All rights reserved.53 ref.12-0007932PAHuman molecular genetics : (Print)GBRHigh-risk α mucosal types of human papillomavirus (HPV) cause anogenital and oropharyngeal cancers, whereas β cutaneous HPV types (e.g. HPV8) have been implicated in non-melanoma skin cancer. Although antibodies against the capsid protein L1 of HPV are considered as markers of cumulative exposure, not all infected persons seroconvert. To identify common genetic variants that influence HPV seroconversion, we performed a two-stage genome-wide association study. Genome-wide genotyping of 316 015 single nucleotide polymorphisms was carried out using the Illumina HumanHap300 BeadChip in 4811 subjects from a central European case-control study of lung, head and neck and kidney cancer that had serology data available on 13 HPV types. Only one association met genome-wide significance criteria, namely that between HPV8 seropositivity and rs9357152 [odds ratio (OR) = 1.37, 95% confidence interval (CI) = 1.24-1.50 for the minor allele G; P = 1.2 x 10-10], a common genetic variant (minor allele frequency = 0.33) located within the major histocompatibility complex (MHC) II region at 6p21.32. This association was subsequently replicated in an independent set of 2344 subjects from a Latin American case-control study of head and neck cancer (OR = 1.35, 95% CI = 1.18-1.56, P = 2.2 x 10-5), yielding P = 1.3 x 10-14 in the combined analysis (P-heterogeneity = 0.87). No heterogeneity was noted by cancer status (controls/lung cancer cases/head and neck cancer cases/kidney cancer cases). This study provides a proof of principle that genetic variation plays a role in antibody reactivity to HPV infection.002A04002A07Association01Association01Asociación01Séropositivité02Seropositivity02Seropositividad02Génétique03Genetics03Genética03Papillomavirus humainNW16Human papillomavirusNW16Human papillomavirusNW16Echelle du génomeINC88PapillomavirusNWPapillomavirusNWPapillomavirusNWPapovaviridaeNWPapovaviridaeNWPapovaviridaeNWVirusNWVirusNWVirusNW002OTOOTOPASCAL 12-0007932 INISTGenome-wide association study of HPV seropositivityDAN CHEN; MCKAY (James D.); CLIFFORD (Gary); GABORIEAU (Valérie); CHABRIER (Amélie); WATERBOER (Tim); ZARIDZE (David); LISSOWSKA (Jolanta); RUDNAI (Peter); FABIANOVA (Eleonora); BENCKO (Vladimir); JANOUT (Vladimir); FORETOVA (Lenka); NICOLAE MATES (Ioan); SZESZENIA-DABROWSKA (Neonila); CURADO (Maria Paula); KOIFMAN (Sergio); MENEZES (Ana); WÜNSCH-FILHO (Victor); ELUF-NETO (José); FERNANDEZ GARROTE (Leticia); MATOS (Elena); ZELENIKA (Diana); BOLAND (Anne); BOFFETTA (Paolo); PAWLITA (Michael); LATHROP (Mark); BRENNAN (Paul)International Agency for Research on Cancer/Lyon/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 28 aut.); Infection and Cancer Program, German Cancer Research Center (DKFZ)/Heidelberg/Allemagne (6 aut., 26 aut.); Department of Epidemiology and Prevention, N.N. Blokhin Cancer Research Center/Moscow/Russie (7 aut.); Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Cancer Center and Institute of Oncology/Warsaw/Pologne (8 aut.); National Institute of Environmental Health/Budapest 1097/Hongrie (9 aut.); Regional Institute of Public Health/Banská Bystrica/Slovaquie (10 aut.); Institute of Hygiene and Epidemiology, First Faculty of Medicine and General University Hospital, Charles University/Prague/Tchèque, République (11 aut.); Palacky University/Olomouc/Tchèque, République (12 aut.); Department of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer Institute/Brno/Tchèque, République (13 aut.); University of Medicine and Pharmacy 'Carol Davila/Bucharest/Roumanie (14 aut.); Department of Epidemiology, Institute of Occupational Medicine/Lodz/Pologne (15 aut.); International Prevention Research Institute (IPRI/Lyon/France (16 aut., 25 aut.); National School of Public Health/FIOCRUZ/Rio de Janeiro/Brésil (17 aut.); Universidade Federal de Pelotas/Pelotas/Brésil (18 aut.); Universidade de São Paulo/São Paulo/Brésil (19 aut., 20 aut.); Institute of Oncology and Radiobiology/Havana/Cuba (21 aut.); Angel H. Roffo Oncology Institute, University of Buenos Aires/Buenos Aires/Argentine (22 aut.); Centre National de Génotypage, Institut Génomique, Commissariat à l'énergie Atomique/Evry/France (23 aut., 24 aut., 27 aut.); The Tisch Cancer Institute Mount Sinai School of Medicine/New York, NY/Etats-Unis (25 aut.); Fondation Jean Dausset-CEPH/Paris/France (27 aut.)
Publication en série; Niveau analytique
Human molecular genetics : (Print); ISSN 0964-6906; Royaume-Uni; Da. 2011; Vol. 20; No. 23; Pp. 4714-4723; Bibl. 53 ref.AnglaisHigh-risk α mucosal types of human papillomavirus (HPV) cause anogenital and oropharyngeal cancers, whereas β cutaneous HPV types (e.g. HPV8) have been implicated in non-melanoma skin cancer. Although antibodies against the capsid protein L1 of HPV are considered as markers of cumulative exposure, not all infected persons seroconvert. To identify common genetic variants that influence HPV seroconversion, we performed a two-stage genome-wide association study. Genome-wide genotyping of 316 015 single nucleotide polymorphisms was carried out using the Illumina HumanHap300 BeadChip in 4811 subjects from a central European case-control study of lung, head and neck and kidney cancer that had serology data available on 13 HPV types. Only one association met genome-wide significance criteria, namely that between HPV8 seropositivity and rs9357152 [odds ratio (OR) = 1.37, 95% confidence interval (CI) = 1.24-1.50 for the minor allele G; P = 1.2 x 10-10], a common genetic variant (minor allele frequency = 0.33) located within the major histocompatibility complex (MHC) II region at 6p21.32. This association was subsequently replicated in an independent set of 2344 subjects from a Latin American case-control study of head and neck cancer (OR = 1.35, 95% CI = 1.18-1.56, P = 2.2 x 10-5), yielding P = 1.3 x 10-14 in the combined analysis (P-heterogeneity = 0.87). No heterogeneity was noted by cancer status (controls/lung cancer cases/head and neck cancer cases/kidney cancer cases). This study provides a proof of principle that genetic variation plays a role in antibody reactivity to HPV infection.002A04; 002A07Association; Séropositivité; Génétique; Papillomavirus humain; Echelle du génomePapillomavirus; Papovaviridae; VirusAssociation; Seropositivity; Genetics; Human papillomavirusPapillomavirus; Papovaviridae; VirusAsociación; Seropositividad; Genética; Human papillomavirusINIST-22540.35400050590703017012-0007932 001B14 A knapsack problem as a tool to solve the production planning problem in small foundriesVictor C. B. CamargoInstituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668São Carlos - SP CEP 13560-970BRA1 aut.2 aut.3 aut.Leandro MattiolliInstituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668São Carlos - SP CEP 13560-970BRA1 aut.2 aut.3 aut.Franklina M. B. ToledoInstituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668São Carlos - SP CEP 13560-970BRA1 aut.2 aut.3 aut.12-00083432012PASCAL 12-0008343 INISTPascal:12-0008343000D790305-0548Comput. oper. res.Computers & operations researchCombinatorial optimizationExperimental studyFoundryFurnaceGenetic algorithmHeuristic methodKnapsack problemLot sizingProduction costProduction managementProduction planningSurface treatmentProblème sac à dosPlanification productionGestion productionFonderieTraitement surfaceCoût productionTaille lotMéthode heuristiqueFourAlgorithme génétiqueOptimisation combinatoireEtude expérimentale
According to recent research carried out in the foundry sector, one of the most important concerns of the industries is to improve their production planning. A foundry production plan involves two dependent stages: (1) determining the alloys to be merged and (2) determining the lots that will be produced. The purpose of this study is to draw up plans of minimum production cost for the lot-sizing problem for small foundries. As suggested in the literature, the proposed heuristic addresses the problem stages in a hierarchical way. Firstly, the alloys are determined and, subsequently, the items that are produced from them. In this study, a knapsack problem as a tool to determine the items to be produced from furnace loading was proposed. Moreover, we proposed a genetic algorithm to explore some possible sets of alloys and to determine the production planning for a small foundry. Our method attempts to overcome the difficulties in finding good production planning presented by the method proposed in the literature. The computational experiments show that the proposed methods presented better results than the literature. Furthermore, the proposed methods do not need commercial software, which is favorable for small foundries.
0305-0548CMORAPComput. oper. res.391A knapsack problem as a tool to solve the production planning problem in small foundriesKnapsack Problems and ApplicationsCAMARGO (Victor C. B.)MATTIOLLI (Leandro)TOLEDO (Franklina M. B.)HIFI (Mhand)ed.M'HALLAH (Rym)ed.Instituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668São Carlos - SP CEP 13560-970BRA1 aut.2 aut.3 aut.Unité de Recherche EPROAD, Université de Picardie Jules Verne, 5 rue du Moulin Neuf80000 AmiensFRA1 aut.Kuwait University, PO Box 5969Safat 13060KWT2 aut.86-922012ENGINIST164123540005091156001100000© 2012 INIST-CNRS. All rights reserved.19 ref.12-0008343PAComputers & operations researchGBRAccording to recent research carried out in the foundry sector, one of the most important concerns of the industries is to improve their production planning. A foundry production plan involves two dependent stages: (1) determining the alloys to be merged and (2) determining the lots that will be produced. The purpose of this study is to draw up plans of minimum production cost for the lot-sizing problem for small foundries. As suggested in the literature, the proposed heuristic addresses the problem stages in a hierarchical way. Firstly, the alloys are determined and, subsequently, the items that are produced from them. In this study, a knapsack problem as a tool to determine the items to be produced from furnace loading was proposed. Moreover, we proposed a genetic algorithm to explore some possible sets of alloys and to determine the production planning for a small foundry. Our method attempts to overcome the difficulties in finding good production planning presented by the method proposed in the literature. The computational experiments show that the proposed methods presented better results than the literature. Furthermore, the proposed methods do not need commercial software, which is favorable for small foundries.001D01A04001D01A13Problème sac à dos06Knapsack problem06Problema mochila06Planification production07Production planning07Programación producción07Gestion production08Production management08Gestión producción08Fonderie09Foundry09Fundería09Traitement surface10Surface treatment10Tratamiento superficie10Coût production11Production cost11Coste producción11Taille lot12Lot sizing12Tamaño lote12Méthode heuristique13Heuristic method13Método heurístico13Four14Furnace14Horno14Algorithme génétique15Genetic algorithm15Algoritmo genético15Optimisation combinatoire16Combinatorial optimization16Optimización combinatoria16Etude expérimentale33Experimental study33Estudio experimental33002OTOOTOPASCAL 12-0008343 INISTA knapsack problem as a tool to solve the production planning problem in small foundriesCAMARGO (Victor C. B.); MATTIOLLI (Leandro); TOLEDO (Franklina M. B.); HIFI (Mhand); M'HALLAH (Rym)Instituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668/São Carlos - SP CEP 13560-970/Brésil (1 aut., 2 aut., 3 aut.); Unité de Recherche EPROAD, Université de Picardie Jules Verne, 5 rue du Moulin Neuf/80000 Amiens/France (1 aut.); Kuwait University, PO Box 5969/Safat 13060/Koweït (2 aut.)
Publication en série; Niveau analytique
Computers & operations research; ISSN 0305-0548; Coden CMORAP; Royaume-Uni; Da. 2012; Vol. 39; No. 1; Pp. 86-92; Bibl. 19 ref.AnglaisAccording to recent research carried out in the foundry sector, one of the most important concerns of the industries is to improve their production planning. A foundry production plan involves two dependent stages: (1) determining the alloys to be merged and (2) determining the lots that will be produced. The purpose of this study is to draw up plans of minimum production cost for the lot-sizing problem for small foundries. As suggested in the literature, the proposed heuristic addresses the problem stages in a hierarchical way. Firstly, the alloys are determined and, subsequently, the items that are produced from them. In this study, a knapsack problem as a tool to determine the items to be produced from furnace loading was proposed. Moreover, we proposed a genetic algorithm to explore some possible sets of alloys and to determine the production planning for a small foundry. Our method attempts to overcome the difficulties in finding good production planning presented by the method proposed in the literature. The computational experiments show that the proposed methods presented better results than the literature. Furthermore, the proposed methods do not need commercial software, which is favorable for small foundries.001D01A04; 001D01A13Problème sac à dos; Planification production; Gestion production; Fonderie; Traitement surface; Coût production; Taille lot; Méthode heuristique; Four; Algorithme génétique; Optimisation combinatoire; Etude expérimentaleKnapsack problem; Production planning; Production management; Foundry; Surface treatment; Production cost; Lot sizing; Heuristic method; Furnace; Genetic algorithm; Combinatorial optimization; Experimental studyProblema mochila; Programación producción; Gestión producción; Fundería; Tratamiento superficie; Coste producción; Tamaño lote; Método heurístico; Horno; Algoritmo genético; Optimización combinatoria; Estudio experimentalINIST-16412.35400050911560011012-0008343 001B15 Three-dimensional container loading models with cargo stability and load bearing constraintsLeonardo JunqueiraDepartamento de Engenharia de Produção, Universidade Federal de São CarlosBRA1 aut.2 aut.3 aut.Reinaldo MorabitoDepartamento de Engenharia de Produção, Universidade Federal de São CarlosBRA1 aut.2 aut.3 aut.Denise Sato YamashitaDepartamento de Engenharia de Produção, Universidade Federal de São CarlosBRA1 aut.2 aut.3 aut.12-00083482012PASCAL 12-0008348 INISTPascal:12-0008348000D780305-0548Comput. oper. res.Computers & operations researchBin packing problemCombinatorial optimizationContainerCutting stock problemDecomposition methodHeuristic methodLinear modelLorryMixed integer programmingModelingMotor carPalletPalletizationRail transportationRelaxation methodStabilityProblème remplissageStabilitéConteneurCamionTransport ferroviaireAutomobileProgrammation partiellement en nombres entiersModèle linéairePalettePalettisationOptimisation combinatoireMéthode décompositionMéthode heuristiqueMéthode relaxationProblème découpeModélisation.
Mathematical models for the problem of loading rectangular boxes into containers, trucks or railway cars have been proposed in the literature, however, there is a lack of studies which consider realistic constraints that often arise in practice. In this paper, we present mixed integer linear programming models for the container loading problem that consider the vertical and horizontal stability of the cargo and the load bearing strength of the cargo (including fragility). The models can also be used for loading rectangular boxes on pallets where the boxes do not need to be arranged in horizontal layers on the pallet. A comprehensive performance analysis using optimization software with 100s of randomly generated instances is presented. The computational results validate the models and show that they are able to handle only problems of a moderate size. However, these models might be useful to motivate future research exploring other solution approaches to solve this problem, such as decomposition methods, relaxation methods, heuristics, among others.
0305-0548CMORAPComput. oper. res.391Three-dimensional container loading models with cargo stability and load bearing constraintsKnapsack Problems and ApplicationsJUNQUEIRA (Leonardo)MORABITO (Reinaldo)YAMASHITA (Denise Sato)HIFI (Mhand)ed.M'HALLAH (Rym)ed.Departamento de Engenharia de Produção, Universidade Federal de São CarlosBRA1 aut.2 aut.3 aut.Unité de Recherche EPROAD, Université de Picardie Jules Verne, 5 rue du Moulin Neuf80000 AmiensFRA1 aut.Kuwait University, PO Box 5969Safat 13060KWT2 aut.74-852012ENGINIST164123540005091156001000000© 2012 INIST-CNRS. All rights reserved.51 ref.12-0008348PAComputers & operations researchGBRMathematical models for the problem of loading rectangular boxes into containers, trucks or railway cars have been proposed in the literature, however, there is a lack of studies which consider realistic constraints that often arise in practice. In this paper, we present mixed integer linear programming models for the container loading problem that consider the vertical and horizontal stability of the cargo and the load bearing strength of the cargo (including fragility). The models can also be used for loading rectangular boxes on pallets where the boxes do not need to be arranged in horizontal layers on the pallet. A comprehensive performance analysis using optimization software with 100s of randomly generated instances is presented. The computational results validate the models and show that they are able to handle only problems of a moderate size. However, these models might be useful to motivate future research exploring other solution approaches to solve this problem, such as decomposition methods, relaxation methods, heuristics, among others.001D01A04001D01A03Problème remplissage06Bin packing problem06Problema relleno06Stabilité07Stability07Estabilidad07Conteneur08Container08Contenedor08Camion09Lorry09Camión09Transport ferroviaire10Rail transportation10Transporte ferroviaro10Automobile11Motor car11Automóvil11Programmation partiellement en nombres entiers12Mixed integer programming12Programación mixta entera12Modèle linéaire13Linear model13Modelo lineal13Palette14Pallet14Paleta14Palettisation15Palletization15Paletización15Optimisation combinatoire16Combinatorial optimization16Optimización combinatoria16Méthode décomposition17Decomposition method17Método descomposición17Méthode heuristique18Heuristic method18Método heurístico18Méthode relaxation19Relaxation method19Método relajación19Problème découpe20Cutting stock problem20Problema troquelado20Modélisation23Modeling23Modelización23.INC82002OTOOTOPASCAL 12-0008348 INISTThree-dimensional container loading models with cargo stability and load bearing constraintsJUNQUEIRA (Leonardo); MORABITO (Reinaldo); YAMASHITA (Denise Sato); HIFI (Mhand); M'HALLAH (Rym)Departamento de Engenharia de Produção, Universidade Federal de São Carlos/Brésil (1 aut., 2 aut., 3 aut.); Unité de Recherche EPROAD, Université de Picardie Jules Verne, 5 rue du Moulin Neuf/80000 Amiens/France (1 aut.); Kuwait University, PO Box 5969/Safat 13060/Koweït (2 aut.)
Publication en série; Niveau analytique
Computers & operations research; ISSN 0305-0548; Coden CMORAP; Royaume-Uni; Da. 2012; Vol. 39; No. 1; Pp. 74-85; Bibl. 51 ref.AnglaisMathematical models for the problem of loading rectangular boxes into containers, trucks or railway cars have been proposed in the literature, however, there is a lack of studies which consider realistic constraints that often arise in practice. In this paper, we present mixed integer linear programming models for the container loading problem that consider the vertical and horizontal stability of the cargo and the load bearing strength of the cargo (including fragility). The models can also be used for loading rectangular boxes on pallets where the boxes do not need to be arranged in horizontal layers on the pallet. A comprehensive performance analysis using optimization software with 100s of randomly generated instances is presented. The computational results validate the models and show that they are able to handle only problems of a moderate size. However, these models might be useful to motivate future research exploring other solution approaches to solve this problem, such as decomposition methods, relaxation methods, heuristics, among others.001D01A04; 001D01A03Problème remplissage; Stabilité; Conteneur; Camion; Transport ferroviaire; Automobile; Programmation partiellement en nombres entiers; Modèle linéaire; Palette; Palettisation; Optimisation combinatoire; Méthode décomposition; Méthode heuristique; Méthode relaxation; Problème découpe; Modélisation; .Bin packing problem; Stability; Container; Lorry; Rail transportation; Motor car; Mixed integer programming; Linear model; Pallet; Palletization; Combinatorial optimization; Decomposition method; Heuristic method; Relaxation method; Cutting stock problem; ModelingProblema relleno; Estabilidad; Contenedor; Camión; Transporte ferroviaro; Automóvil; Programación mixta entera; Modelo lineal; Paleta; Paletización; Optimización combinatoria; Método descomposición; Método heurístico; Método relajación; Problema troquelado; ModelizaciónINIST-16412.35400050911560010012-0008348 001B16 The effect of zirconia and niobia supports on the catalytic activity of surface VO<sub>x</sub> species in total oxidation of model volatile organic compoundsA. AdamskiJagiellonian University, Faculty of Chemistry, Ingardena 330-060 CracowPOL1 aut.2 aut.3 aut.6 aut.P. ZapalaJagiellonian University, Faculty of Chemistry, Ingardena 330-060 CracowPOL1 aut.2 aut.3 aut.6 aut.L. ChmielarzJagiellonian University, Faculty of Chemistry, Ingardena 330-060 CracowPOL1 aut.2 aut.3 aut.6 aut.J. A. J. RodriguezNational Institute for Space Research, Combustion and Propulsion Laboratory, Rodovina Presidente Dutra km 40, Cachoeira Paulista, CEP 12630-000São PauloBRA4 aut.G. Djega-MariadassouCentre of Polymer and Carbon Materials (CMPW) PAS, Curie-Sklodowskiej 3441-800 ZabrzePOL5 aut.Z. SojkaJagiellonian University, Faculty of Chemistry, Ingardena 330-060 CracowPOL1 aut.2 aut.3 aut.6 aut.12-00094332011PASCAL 12-0009433 INISTPascal:12-0009433000D770920-5861Catal. today : (Print)Catalysis today : (Print)AcetoneAdsorptionAir pollution controlCatalytic reactionEPR spectrometryEnvironmental protectionHeterogeneous catalysisImpregnationMethanolModel compoundOxidationReferenceSupportSupported catalystTransition element compoundsVanadiumVanadium oxideVolatile organic compoundX ray diffractionZirconiaZirconium oxideComposé de métal de transitionZirconeSupportRéaction catalytiqueOxydationComposé modèleComposé organique volatilOxyde de vanadiumOxyde de zirconiumSpectrométrie RPECatalyse hétérogèneLutte antipollution airProtection environnementCatalyseur sur supportImprégnationDiffraction RXMéthanolAcétoneVanadiumRéférenceAdsorptionZrO2O ZrV2O5
Samples of the catalysts containing 0.5, 5.0 and 40 mol.% of V2O5 supported on the ZrO2 and Nb2O5 oxides, prepared by wet impregnation, were characterized by XRD and EPR. Their catalytic activity was tested in methanol and acetone total oxidation. Vanadium bronze samples were synthesized as a reference. Redox properties of surface oxovanadium entities were investigated by adsorption of NO probe molecule and monitored by EPR. Strong effect of the support on surface architecture of the vanadium species and their catalytic performance was observed. The highest activity in total VOC oxidation (T50% = 205 C for methanol and 230 C for acetone) was observed for zirconia-supported catalysts containing 5.0 mol.% of V2O5. In all cases the niobia-supported catalysts were less active than the corresponding zirconia-supported samples.
0920-5861CATTEACatal. today : (Print)1761The effect of zirconia and niobia supports on the catalytic activity of surface VOx species in total oxidation of model volatile organic compoundsSpecial issue dedicated to APAC 2010ADAMSKI (A.)ZAPALA (P.)CHMIELARZ (L.)RODRIGUEZ (J. A. J.)DJEGA-MARIADASSOU (G.)SOJKA (Z.)DA COSTA (Patrick)ed.GRZYBEK (Teresa)ed.KRZTON (Andrzej)ed.Jagiellonian University, Faculty of Chemistry, Ingardena 330-060 CracowPOL1 aut.2 aut.3 aut.6 aut.National Institute for Space Research, Combustion and Propulsion Laboratory, Rodovina Presidente Dutra km 40, Cachoeira Paulista, CEP 12630-000São PauloBRA4 aut.Centre of Polymer and Carbon Materials (CMPW) PAS, Curie-Sklodowskiej 3441-800 ZabrzePOL5 aut.Université Pierre et Marie Curie, Institut Jean Le Rond d'AlembertFRA1 aut.Faculty of Energy and Fuels, AGH University of Science and TechnologyCracowPOL2 aut.Centre of Polymer and Carbon Materials of Polish Academy of SciencesZabrzePOL3 aut.International Group of Research (GDRI)INTorg-cong.318-3232011ENGINIST213573540005055376806100000© 2012 INIST-CNRS. All rights reserved.36 ref.12-0009433PCACatalysis today : (Print)NLDSamples of the catalysts containing 0.5, 5.0 and 40 mol.% of V2O5 supported on the ZrO2 and Nb2O5 oxides, prepared by wet impregnation, were characterized by XRD and EPR. Their catalytic activity was tested in methanol and acetone total oxidation. Vanadium bronze samples were synthesized as a reference. Redox properties of surface oxovanadium entities were investigated by adsorption of NO probe molecule and monitored by EPR. Strong effect of the support on surface architecture of the vanadium species and their catalytic performance was observed. The highest activity in total VOC oxidation (T50% = 205 C for methanol and 230 C for acetone) was observed for zirconia-supported catalysts containing 5.0 mol.% of V2O5. In all cases the niobia-supported catalysts were less active than the corresponding zirconia-supported samples.001C01A03001C01IComposé de métal de transition01Transition element compounds01Zircone03Zirconia03Zircona03Support04Support04Soporte04Réaction catalytique05Catalytic reaction05Reacción catalítica05Oxydation06Oxidation06Oxidación06Composé modèle07Model compound07Compuesto modelo07Composé organique volatil08Volatile organic compound08Compuesto orgánico volátil08Oxyde de vanadium09Vanadium oxide09Vanadio óxido09Oxyde de zirconium10Zirconium oxide10Zirconio óxido10Spectrométrie RPE11EPR spectrometry11Espectrometría RPE11Catalyse hétérogène12Heterogeneous catalysis12Catálisis heterogénea12Lutte antipollution air13Air pollution control13Protección polución aire13Protection environnement14Environmental protection14Protección medio ambiente14Catalyseur sur support16Supported catalyst16Catalizador sobre soporte16Imprégnation17Impregnation17Impregnación17Diffraction RX18X ray diffraction18Difracción RX18MéthanolNKFX19MethanolNKFX19MetanolNKFX19AcétoneNKFX20AcetoneNKFX20AcetonaNKFX20VanadiumNCFX21VanadiumNCFX21VanadioNCFX21Référence22Reference22Referencia22Adsorption23Adsorption23Adsorción23ZrO2INC32O ZrINC33V2O5INC34Composé binaire15Binary compound15Compuesto binario15Alcanol24Alkanol24Alcanol24Cétone25Ketone25Cetona25Métal transitionNC26Transition metalNC26Metal transiciónNC26Alcool27Alcohol27Alcohol27002OTOOTOInternational Symposium on "Air Pollution Abatement Catalysis" (APAC 2011)2Cracow POL2011-09-08PASCAL 12-0009433 INISTThe effect of zirconia and niobia supports on the catalytic activity of surface VOx species in total oxidation of model volatile organic compoundsADAMSKI (A.); ZAPALA (P.); CHMIELARZ (L.); RODRIGUEZ (J. A. J.); DJEGA-MARIADASSOU (G.); SOJKA (Z.); DA COSTA (Patrick); GRZYBEK (Teresa); KRZTON (Andrzej)Jagiellonian University, Faculty of Chemistry, Ingardena 3/30-060 Cracow/Pologne (1 aut., 2 aut., 3 aut., 6 aut.); National Institute for Space Research, Combustion and Propulsion Laboratory, Rodovina Presidente Dutra km 40, Cachoeira Paulista, CEP 12630-000/São Paulo/Brésil (4 aut.); Centre of Polymer and Carbon Materials (CMPW) PAS, Curie-Sklodowskiej 34/41-800 Zabrze/Pologne (5 aut.); Université Pierre et Marie Curie, Institut Jean Le Rond d'Alembert/France (1 aut.); Faculty of Energy and Fuels, AGH University of Science and Technology/Cracow/Pologne (2 aut.); Centre of Polymer and Carbon Materials of Polish Academy of Sciences/Zabrze/Pologne (3 aut.)
Publication en série; Congrès; Niveau analytique
Catalysis today : (Print); ISSN 0920-5861; Coden CATTEA; Pays-Bas; Da. 2011; Vol. 176; No. 1; Pp. 318-323; Bibl. 36 ref.AnglaisSamples of the catalysts containing 0.5, 5.0 and 40 mol.% of V2O5 supported on the ZrO2 and Nb2O5 oxides, prepared by wet impregnation, were characterized by XRD and EPR. Their catalytic activity was tested in methanol and acetone total oxidation. Vanadium bronze samples were synthesized as a reference. Redox properties of surface oxovanadium entities were investigated by adsorption of NO probe molecule and monitored by EPR. Strong effect of the support on surface architecture of the vanadium species and their catalytic performance was observed. The highest activity in total VOC oxidation (T50% = 205 C for methanol and 230 C for acetone) was observed for zirconia-supported catalysts containing 5.0 mol.% of V2O5. In all cases the niobia-supported catalysts were less active than the corresponding zirconia-supported samples.001C01A03; 001C01IComposé de métal de transition; Zircone; Support; Réaction catalytique; Oxydation; Composé modèle; Composé organique volatil; Oxyde de vanadium; Oxyde de zirconium; Spectrométrie RPE; Catalyse hétérogène; Lutte antipollution air; Protection environnement; Catalyseur sur support; Imprégnation; Diffraction RX; Méthanol; Acétone; Vanadium; Référence; Adsorption; ZrO2; O Zr; V2O5Composé binaire; Alcanol; Cétone; Métal transition; AlcoolTransition element compounds; Zirconia; Support; Catalytic reaction; Oxidation; Model compound; Volatile organic compound; Vanadium oxide; Zirconium oxide; EPR spectrometry; Heterogeneous catalysis; Air pollution control; Environmental protection; Supported catalyst; Impregnation; X ray diffraction; Methanol; Acetone; Vanadium; Reference; AdsorptionBinary compound; Alkanol; Ketone; Transition metal; AlcoholZircona; Soporte; Reacción catalítica; Oxidación; Compuesto modelo; Compuesto orgánico volátil; Vanadio óxido; Zirconio óxido; Espectrometría RPE; Catálisis heterogénea; Protección polución aire; Protección medio ambiente; Catalizador sobre soporte; Impregnación; Difracción RX; Metanol; Acetona; Vanadio; Referencia; AdsorciónINIST-21357.35400050553768061012-0009433 001B17 Methane conversion to hydrogen and nanotubes on Pt/Ni catalysts supported over spinel MgAl<sub>2</sub>O<sub>4</sub>Giselle De B. NuernbergLaboratório de Catálise Heterogenea, LABOCATH, Departamento de Quimica, Universidade Federal de Santa Catarina88040-900 Florianópolis, SCBRA1 aut.6 aut.Humberto V. FajardoDepartamento de Química, Universidade Federal de Ouro Preto35400-000 Ouro Preto, MGBRA2 aut.Edson L. FolettoDepartamento de Engenharia Quimica, Universidade Federal de Santa Maria97150-900 Santa Maria, RSBRA3 aut.Sonia M. Hickel-ProbstPro-reitoria de Pesquisa e Inovação Tecnológica, Universidade do Sul de Santa Catarina88137-270 Palhoça, SCBRA4 aut.Neftal L. V. CarrenoDepartamento de Quimica Analitica e Inorgânica, Universidade Federal de Pelotas, 96010-900Capão Leão, RSBRA5 aut.Luiz F. D. ProbstLaboratório de Catálise Heterogenea, LABOCATH, Departamento de Quimica, Universidade Federal de Santa Catarina88040-900 Florianópolis, SCBRA1 aut.6 aut.Joel BarraultLaboratoire de Catalyse en Chimie Organique, ESIP. UMR CNRS 6503, 40 avenue du Recteur Pineau86022 PoitiersFRA7 aut.12-00094812011PASCAL 12-0009481 INISTPascal:12-0009481000D760920-5861Catal. today : (Print)Catalysis today : (Print)Air pollution controlCarbonCarbon nanotubesCatalystCatalyst supportCatalytic reactionCharacterizationChemical reductionCompositionConversionDeactivationDecompositionDilutionEnvironmental protectionHeterogeneous catalysisHigh temperatureHydrogenMethaneMixed catalystNickelParticlePrecursorPreparationSelectivitySpinelSpinelsStabilityMéthaneConversionHydrogèneNanotube carboneSupport catalyseurSpinelleSpinellesCatalyseurCatalyse hétérogèneLutte antipollution airProtection environnementDécompositionHaute températureCarboneDésactivationStabilitéDilutionRéaction catalytiqueNickelSélectivitéCatalyseur mixteRéduction chimiquePrécurseurParticuleCaractérisationPréparationComposition
Methane decomposition is an endothermic process. Therefore a high temperature increases the methane conversion and improves the carbon accumulation. Nevertheless at high temperature conditions a faster deactivation of catalyst is generally observed. To keep the stability of the catalyst, lower reaction temperatures can be used as well as methane dilution but the catalytic activity is lowered. The aim of the present work consists in the study of the catalytic properties of Ni-Pt supported over MgAl2O4 for the selective conversion of methane into hydrogen and carbon nanotubes. The addition of a small amount of Pt to a nickel-MgAl2O4 catalyst promotes the formation of carbon nanotubes with a significant selectivity to MWCNT. The interest of using a bimetallic (Pt-Ni) catalyst is to favour the reduction of the Ni precursor (and the formation of small nickel particles). For the catalyst that we prepared methane is mainly transformed into structured MWCNTs if the reduction is complete while graphitization is observed over partially reduced catalysts. A fine characterization of the catalyst surface after each step of the preparation and use is currently under investigation in order to progress in the relationships between the surface composition and the CNTs formation.
0920-5861CATTEACatal. today : (Print)1761Methane conversion to hydrogen and nanotubes on Pt/Ni catalysts supported over spinel MgAl2O4Special issue dedicated to APAC 2010NUERNBERG (Giselle De B.)FAJARDO (Humberto V.)FOLETTO (Edson L.)HICKEL-PROBST (Sonia M.)CARRENO (Neftalí L. V.)PROBST (Luiz F. D.)BARRAULT (Joel)DA COSTA (Patrick)ed.GRZYBEK (Teresa)ed.KRZTON (Andrzej)ed.Laboratório de Catálise Heterogenea, LABOCATH, Departamento de Quimica, Universidade Federal de Santa Catarina88040-900 Florianópolis, SCBRA1 aut.6 aut.Departamento de Química, Universidade Federal de Ouro Preto35400-000 Ouro Preto, MGBRA2 aut.Departamento de Engenharia Quimica, Universidade Federal de Santa Maria97150-900 Santa Maria, RSBRA3 aut.Departamento de Quimica Analitica e Inorgânica, Universidade Federal de Pelotas, 96010-900Capão Leão, RSBRA5 aut.Pro-reitoria de Pesquisa e Inovação Tecnológica, Universidade do Sul de Santa Catarina88137-270 Palhoça, SCBRA4 aut.Laboratoire de Catalyse en Chimie Organique, ESIP. UMR CNRS 6503, 40 avenue du Recteur Pineau86022 PoitiersFRA7 aut.Université Pierre et Marie Curie, Institut Jean Le Rond d'AlembertFRA1 aut.Faculty of Energy and Fuels, AGH University of Science and TechnologyCracowPOL2 aut.Centre of Polymer and Carbon Materials of Polish Academy of SciencesZabrzePOL3 aut.International Group of Research (GDRI)INTorg-cong.465-4692011ENGINIST213573540005055376809000000© 2012 INIST-CNRS. All rights reserved.6 ref.12-0009481PCACatalysis today : (Print)NLDMethane decomposition is an endothermic process. Therefore a high temperature increases the methane conversion and improves the carbon accumulation. Nevertheless at high temperature conditions a faster deactivation of catalyst is generally observed. To keep the stability of the catalyst, lower reaction temperatures can be used as well as methane dilution but the catalytic activity is lowered. The aim of the present work consists in the study of the catalytic properties of Ni-Pt supported over MgAl2O4 for the selective conversion of methane into hydrogen and carbon nanotubes. The addition of a small amount of Pt to a nickel-MgAl2O4 catalyst promotes the formation of carbon nanotubes with a significant selectivity to MWCNT. The interest of using a bimetallic (Pt-Ni) catalyst is to favour the reduction of the Ni precursor (and the formation of small nickel particles). For the catalyst that we prepared methane is mainly transformed into structured MWCNTs if the reduction is complete while graphitization is observed over partially reduced catalysts. A fine characterization of the catalyst surface after each step of the preparation and use is currently under investigation in order to progress in the relationships between the surface composition and the CNTs formation.001C01A03MéthaneNKFX01MethaneNKFX01MetanoNKFX01Conversion02Conversion02Conversión02HydrogèneNC03HydrogenNC03HidrógenoNC03Nanotube carbone04Carbon nanotubes04Support catalyseur05Catalyst support05Soporte catalizador05Spinelle06Spinel06Espinela06Spinelles07Spinels07Espinelas07Catalyseur08Catalyst08Catalizador08Catalyse hétérogène09Heterogeneous catalysis09Catálisis heterogénea09Lutte antipollution air10Air pollution control10Protección polución aire10Protection environnement11Environmental protection11Protección medio ambiente11Décomposition12Decomposition12Descomposición12Haute température13High temperature13Alta temperatura13CarboneNC14CarbonNC14CarbonoNC14Désactivation15Deactivation15Desactivación15Stabilité16Stability16Estabilidad16Dilution17Dilution17Dilución17Réaction catalytique18Catalytic reaction18Reacción catalítica18NickelNCFX19NickelNCFX19NiquelNCFX19Sélectivité20Selectivity20Selectividad20Catalyseur mixte21Mixed catalyst21Catalizador mixto21Réduction chimique22Chemical reduction22Reducción química22Précurseur23Precursor23Precursor23ParticuleFX24ParticleFX24PartículaFX24Caractérisation25Characterization25Caracterización25Préparation26Preparation26Preparación26Composition27Composition27Composicion27Métal transitionNC28Transition metalNC28Metal transiciónNC28002OTOOTOInternational Symposium on "Air Pollution Abatement Catalysis" (APAC 2011)2Cracow POL2011-09-08PASCAL 12-0009481 INISTMethane conversion to hydrogen and nanotubes on Pt/Ni catalysts supported over spinel MgAl2O4NUERNBERG (Giselle De B.); FAJARDO (Humberto V.); FOLETTO (Edson L.); HICKEL-PROBST (Sonia M.); CARRENO (Neftalí L. V.); PROBST (Luiz F. D.); BARRAULT (Joel); DA COSTA (Patrick); GRZYBEK (Teresa); KRZTON (Andrzej)Laboratório de Catálise Heterogenea, LABOCATH, Departamento de Quimica, Universidade Federal de Santa Catarina/88040-900 Florianópolis, SC/Brésil (1 aut., 6 aut.); Departamento de Química, Universidade Federal de Ouro Preto/35400-000 Ouro Preto, MG/Brésil (2 aut.); Departamento de Engenharia Quimica, Universidade Federal de Santa Maria/97150-900 Santa Maria, RS/Brésil (3 aut.); Departamento de Quimica Analitica e Inorgânica, Universidade Federal de Pelotas, 96010-900/Capão Leão, RS/Brésil (5 aut.); Pro-reitoria de Pesquisa e Inovação Tecnológica, Universidade do Sul de Santa Catarina/88137-270 Palhoça, SC/Brésil (4 aut.); Laboratoire de Catalyse en Chimie Organique, ESIP. UMR CNRS 6503, 40 avenue du Recteur Pineau/86022 Poitiers/France (7 aut.); Université Pierre et Marie Curie, Institut Jean Le Rond d'Alembert/France (1 aut.); Faculty of Energy and Fuels, AGH University of Science and Technology/Cracow/Pologne (2 aut.); Centre of Polymer and Carbon Materials of Polish Academy of Sciences/Zabrze/Pologne (3 aut.)
Publication en série; Congrès; Niveau analytique
Catalysis today : (Print); ISSN 0920-5861; Coden CATTEA; Pays-Bas; Da. 2011; Vol. 176; No. 1; Pp. 465-469; Bibl. 6 ref.AnglaisMethane decomposition is an endothermic process. Therefore a high temperature increases the methane conversion and improves the carbon accumulation. Nevertheless at high temperature conditions a faster deactivation of catalyst is generally observed. To keep the stability of the catalyst, lower reaction temperatures can be used as well as methane dilution but the catalytic activity is lowered. The aim of the present work consists in the study of the catalytic properties of Ni-Pt supported over MgAl2O4 for the selective conversion of methane into hydrogen and carbon nanotubes. The addition of a small amount of Pt to a nickel-MgAl2O4 catalyst promotes the formation of carbon nanotubes with a significant selectivity to MWCNT. The interest of using a bimetallic (Pt-Ni) catalyst is to favour the reduction of the Ni precursor (and the formation of small nickel particles). For the catalyst that we prepared methane is mainly transformed into structured MWCNTs if the reduction is complete while graphitization is observed over partially reduced catalysts. A fine characterization of the catalyst surface after each step of the preparation and use is currently under investigation in order to progress in the relationships between the surface composition and the CNTs formation.001C01A03Méthane; Conversion; Hydrogène; Nanotube carbone; Support catalyseur; Spinelle; Spinelles; Catalyseur; Catalyse hétérogène; Lutte antipollution air; Protection environnement; Décomposition; Haute température; Carbone; Désactivation; Stabilité; Dilution; Réaction catalytique; Nickel; Sélectivité; Catalyseur mixte; Réduction chimique; Précurseur; Particule; Caractérisation; Préparation; CompositionMétal transitionMethane; Conversion; Hydrogen; Carbon nanotubes; Catalyst support; Spinel; Spinels; Catalyst; Heterogeneous catalysis; Air pollution control; Environmental protection; Decomposition; High temperature; Carbon; Deactivation; Stability; Dilution; Catalytic reaction; Nickel; Selectivity; Mixed catalyst; Chemical reduction; Precursor; Particle; Characterization; Preparation; CompositionTransition metalMetano; Conversión; Hidrógeno; Soporte catalizador; Espinela; Espinelas; Catalizador; Catálisis heterogénea; Protección polución aire; Protección medio ambiente; Descomposición; Alta temperatura; Carbono; Desactivación; Estabilidad; Dilución; Reacción catalítica; Niquel; Selectividad; Catalizador mixto; Reducción química; Precursor; Partícula; Caracterización; Preparación; ComposicionINIST-21357.35400050553768090012-0009481 001B18 Soil cover and landscape evolution in the Senegal floodplain: a review and synthesis of processes and interactions during the late HoloceneS. FurianDepartamento de Geografia, Laboratório de Pedologia, Universidade de São Paulo C.P. 810505508-900 São PauloBRA1 aut.A. O. MohamedouFaculté des Sciences et Techniques, Université de Nouakchott, B.P. 56NouakchottMRT2 aut.C. HammeckerInstitut de Recherche pour le Développement, Unité de Recherches 176, Land Development Department, Office of Science for Land Development, Pahonyothin Road, ChatuchakBangkok 10900THA3 aut.4 aut.J.-L. MaeghtInstitut de Recherche pour le Développement, Unité de Recherches 176, Land Development Department, Office of Science for Land Development, Pahonyothin Road, ChatuchakBangkok 10900THA3 aut.4 aut.L. BarbieroGET-Géosciences Environnement Toulouse, Université Paul Sabatier (Observatoire Midi-Pyrénées), 14 Av, Edouard Belin31400 ToulouseFRA5 aut.GET-Géosciences Environnement Toulouse, Institut de Recherche pour le Développement31400 ToulouseFRA5 aut.12-00122762011PASCAL 12-0012276 INISTPascal:12-0012276000D751351-0754Eur. j. soil sci.European journal of soil scienceEarth scienceHoloceneInteractionLateReviewSenegalSoil scienceevolutionfloodplainslandscapesprocessessoilsPaysageEvolutionPlaine inondableArticle synthèseProcessusInteractionTardifHolocèneScience terreSénégalSolScience du solAfrique tropicale
The aim of this paper is to summarize the successive biological, pedological, hydrodynamic, geomorphological and geochemical processes that have occurred in the Senegal valley, and to describe how their interactions during the late Holocene conditioned soil cover formation and landscape evolution. Potential acidity accumulated as pyrite in the floodplain sediment during the last marine transgressions, and was expressed during the following regressions because of oxidation. Soil acidification was mitigated by the soil buffer capacity and by the interaction with the slightly alkaline continental freshwater of the river. Two pedogenetic transformation processes that resulted from the succession of acidic and neutral conditions, transformed unripe muds with pyrite (potential Acid Sulphate soil) to actual Acid Sulphate soils, and then to Vertisols. Geochemical modelling with PHREEQC quantitatively confirmed the feasibility of the processes involved. These two pedogenetic processes also controlled two independent salt accumulation processes: (i) the transformation of shell accumulation beds into gypsum layers and (ii) aeolian deflation and formation of clay dunes. The study shows that pedogenetic effects on alluvial material can lead to contrasting horizons that cannot be explained stratigraphically. It also shows that the presence of saline areas in the Senegal middle valley results from much more complex processes than a simple salt deposition during transgressions.
1351-0754Eur. j. soil sci.626Soil cover and landscape evolution in the Senegal floodplain: a review and synthesis of processes and interactions during the late HoloceneFURIAN (S.)MOHAMEDOU (A. O.)HAMMECKER (C.)MAEGHT (J.-L.)BARBIERO (L.)Departamento de Geografia, Laboratório de Pedologia, Universidade de São Paulo C.P. 810505508-900 São PauloBRA1 aut.Faculté des Sciences et Techniques, Université de Nouakchott, B.P. 56NouakchottMRT2 aut.Institut de Recherche pour le Développement, Unité de Recherches 176, Land Development Department, Office of Science for Land Development, Pahonyothin Road, ChatuchakBangkok 10900THA3 aut.4 aut.GET-Géosciences Environnement Toulouse, Université Paul Sabatier (Observatoire Midi-Pyrénées), 14 Av, Edouard Belin31400 ToulouseFRA5 aut.GET-Géosciences Environnement Toulouse, Institut de Recherche pour le Développement31400 ToulouseFRA5 aut.902-9122011ENGINIST24023540005059051301200000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0012276PAEuropean journal of soil scienceGBRThe aim of this paper is to summarize the successive biological, pedological, hydrodynamic, geomorphological and geochemical processes that have occurred in the Senegal valley, and to describe how their interactions during the late Holocene conditioned soil cover formation and landscape evolution. Potential acidity accumulated as pyrite in the floodplain sediment during the last marine transgressions, and was expressed during the following regressions because of oxidation. Soil acidification was mitigated by the soil buffer capacity and by the interaction with the slightly alkaline continental freshwater of the river. Two pedogenetic transformation processes that resulted from the succession of acidic and neutral conditions, transformed unripe muds with pyrite (potential Acid Sulphate soil) to actual Acid Sulphate soils, and then to Vertisols. Geochemical modelling with PHREEQC quantitatively confirmed the feasibility of the processes involved. These two pedogenetic processes also controlled two independent salt accumulation processes: (i) the transformation of shell accumulation beds into gypsum layers and (ii) aeolian deflation and formation of clay dunes. The study shows that pedogenetic effects on alluvial material can lead to contrasting horizons that cannot be explained stratigraphically. It also shows that the presence of saline areas in the Senegal middle valley results from much more complex processes than a simple salt deposition during transgressions.001E01P03002A32B226C03Paysage01landscapes01Paisaje01Evolution02evolution02Plaine inondable03floodplains03Llano inundable03Article synthèse04Review04Artículo síntesis04Processus05processes05Interaction06Interaction06Interacción06Tardif07Late07Tardío07HolocèneNX08HoloceneNX08HolocenoNX08Science terre09Earth science09Ciencia tierra09SénégalNG20SenegalNG20SenegalNG20SolNT24soilsNT24SueloNT24Science du sol28Soil science28Ciencia del suelo28Afrique tropicaleINC68Quaternaire supNXupper QuaternaryNXCuaternario supNXQuaternaireNXQuaternaryNXCuaternarioNXCénozoïqueNXCenozoicNXCenozoicoNXPhanérozoïqueNXPhanerozoicNXFanerozoicoNXAfrique OuestNGWest AfricaNGAfrica occidentalNGAfrique564Africa564Africa564Afrique subsaharienneNG34Sub-Saharan AfricaNG34Africa subsaharianaNG34AfriqueNGAfricaNGAfricaNGZone tropicale60tropical zone60Zona tropical60002OTOOTOPASCAL 12-0012276 INISTSoil cover and landscape evolution in the Senegal floodplain: a review and synthesis of processes and interactions during the late HoloceneFURIAN (S.); MOHAMEDOU (A. O.); HAMMECKER (C.); MAEGHT (J.-L.); BARBIERO (L.)Departamento de Geografia, Laboratório de Pedologia, Universidade de São Paulo C.P. 8105/05508-900 São Paulo/Brésil (1 aut.); Faculté des Sciences et Techniques, Université de Nouakchott, B.P. 56/Nouakchott/Mauritanie (2 aut.); Institut de Recherche pour le Développement, Unité de Recherches 176, Land Development Department, Office of Science for Land Development, Pahonyothin Road, Chatuchak/Bangkok 10900/Thaïlande (3 aut., 4 aut.); GET-Géosciences Environnement Toulouse, Université Paul Sabatier (Observatoire Midi-Pyrénées), 14 Av, Edouard Belin/31400 Toulouse/France (5 aut.); GET-Géosciences Environnement Toulouse, Institut de Recherche pour le Développement/31400 Toulouse/France (5 aut.)
Publication en série; Niveau analytique
European journal of soil science; ISSN 1351-0754; Royaume-Uni; Da. 2011; Vol. 62; No. 6; Pp. 902-912; Bibl. 1 p.1/4AnglaisThe aim of this paper is to summarize the successive biological, pedological, hydrodynamic, geomorphological and geochemical processes that have occurred in the Senegal valley, and to describe how their interactions during the late Holocene conditioned soil cover formation and landscape evolution. Potential acidity accumulated as pyrite in the floodplain sediment during the last marine transgressions, and was expressed during the following regressions because of oxidation. Soil acidification was mitigated by the soil buffer capacity and by the interaction with the slightly alkaline continental freshwater of the river. Two pedogenetic transformation processes that resulted from the succession of acidic and neutral conditions, transformed unripe muds with pyrite (potential Acid Sulphate soil) to actual Acid Sulphate soils, and then to Vertisols. Geochemical modelling with PHREEQC quantitatively confirmed the feasibility of the processes involved. These two pedogenetic processes also controlled two independent salt accumulation processes: (i) the transformation of shell accumulation beds into gypsum layers and (ii) aeolian deflation and formation of clay dunes. The study shows that pedogenetic effects on alluvial material can lead to contrasting horizons that cannot be explained stratigraphically. It also shows that the presence of saline areas in the Senegal middle valley results from much more complex processes than a simple salt deposition during transgressions.001E01P03; 002A32B; 226C03Paysage; Evolution; Plaine inondable; Article synthèse; Processus; Interaction; Tardif; Holocène; Science terre; Sénégal; Sol; Science du sol; Afrique tropicaleQuaternaire sup; Quaternaire; Cénozoïque; Phanérozoïque; Afrique Ouest; Afrique; Afrique subsaharienne; Afrique; Zone tropicalelandscapes; evolution; floodplains; Review; processes; Interaction; Late; Holocene; Earth science; Senegal; soils; Soil scienceupper Quaternary; Quaternary; Cenozoic; Phanerozoic; West Africa; Africa; Sub-Saharan Africa; Africa; tropical zonePaisaje; Llano inundable; Artículo síntesis; Interacción; Tardío; Holoceno; Ciencia tierra; Senegal; Suelo; Ciencia del sueloINIST-2402.35400050590513012012-0012276 001B19 Spectral and mineralogical characterization of inner main-belt V-type asteroidsM. C. De SanctisIstituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA1 aut.2 aut.5 aut.8 aut.A. MiglioriniIstituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA1 aut.2 aut.5 aut.8 aut.F. Luzia JasminObservatório Nacional, Rua Gal Jose Cristino 77, 20921-400 Rio de JaneiroBRA3 aut.4 aut.D. LazzaroObservatório Nacional, Rua Gal Jose Cristino 77, 20921-400 Rio de JaneiroBRA3 aut.4 aut.G. FilacchioneIstituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA1 aut.2 aut.5 aut.8 aut.S. MarchiDepartement Cassiopée, Universite de Nice-Sophia Antipolis, Observatoire de la Cote d' Azur, CNRS, Boulevard de l'Observatoire06304 NiceFRA6 aut.E. AmmannitoIstituto di Fisica dello Spazio Interplanetario, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA7 aut.M. T. CapfiaIstituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA1 aut.2 aut.5 aut.8 aut.12-00127562011PASCAL 12-0012756 INISTPascal:12-0012756000D740004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AsteroidsMeteoritesMineralogyPlanetsReflectivityVariabilityAstéroïdeFacteur réflexionMétéoriteVariabilitéMinéralogiePlanète
Context. V-type asteroids in the inner main belt are thought to be genetically related to (4) Vesta as collisional fragments. We investigate their relationship with Vesta observing putative V-type asteroids. Aims. The aim of this work is to observe candidate V-type asteroids, selected in different regions of the inner main belt, to characterize them and hence better understand their relationship with (4) Vesta. Methods. We present new NIR reflectance spectra of 18 V-type candidate asteroids, selected from datasets of possible V-type asteroids. The data were obtained at the 3.6 m Telescopio Nazionale Galileo, covering the spectral range 0.7 to 2.5 μm. We derive spectral parameters from NIR spectra to infer mineralogical information of the observed asteroids. The spectra of these asteroids are examined and compared to those of Howardite-Eucrite-Diogenite meteorites (HED), of which (4) Vesta is believed to be the parent body, and other V-type asteroids observed during previous campaigns. To enlarge the data set and increase the statistical significance of the analysis, we included the data presented in our previous article, obtaining a final data set of 41 V-type asteroids. Results. The V-type asteroids examined here show a higher variability of band parameters with respect to HEDs values, as for (4) Vesta. This result indicates that (4) Vesta and V-type asteroids have mineralogies that are not completely represented in the HEDs collection. Conclusions. An important finding is that some of the observed asteroids show spectral characteristics similar to diogenites, a result that may have relevant implications on their origin. Moreover, most of the diogenitic asteroids are not members of the Vesta classical family.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)533p. 2Spectral and mineralogical characterization of inner main-belt V-type asteroidsDE SANCTIS (M. C.)MIGLIORINI (A.)LUZIA JASMIN (F.)LAZZARO (D.)FILACCHIONE (G.)MARCHI (S.)AMMANNITO (E.)CAPFIA (M. T.)Istituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA1 aut.2 aut.5 aut.8 aut.Observatório Nacional, Rua Gal Jose Cristino 77, 20921-400 Rio de JaneiroBRA3 aut.4 aut.Departement Cassiopée, Universite de Nice-Sophia Antipolis, Observatoire de la Cote d' Azur, CNRS, Boulevard de l'Observatoire06304 NiceFRA6 aut.Istituto di Fisica dello Spazio Interplanetario, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 10000133 RomaITA7 aut.A77.1-A77.102011ENGINIST141763540005073386500500000© 2012 INIST-CNRS. All rights reserved.1/2 p.12-0012756PAAstronomy and astrophysics : (Berlin. Print)FRAContext. V-type asteroids in the inner main belt are thought to be genetically related to (4) Vesta as collisional fragments. We investigate their relationship with Vesta observing putative V-type asteroids. Aims. The aim of this work is to observe candidate V-type asteroids, selected in different regions of the inner main belt, to characterize them and hence better understand their relationship with (4) Vesta. Methods. We present new NIR reflectance spectra of 18 V-type candidate asteroids, selected from datasets of possible V-type asteroids. The data were obtained at the 3.6 m Telescopio Nazionale Galileo, covering the spectral range 0.7 to 2.5 μm. We derive spectral parameters from NIR spectra to infer mineralogical information of the observed asteroids. The spectra of these asteroids are examined and compared to those of Howardite-Eucrite-Diogenite meteorites (HED), of which (4) Vesta is believed to be the parent body, and other V-type asteroids observed during previous campaigns. To enlarge the data set and increase the statistical significance of the analysis, we included the data presented in our previous article, obtaining a final data set of 41 V-type asteroids. Results. The V-type asteroids examined here show a higher variability of band parameters with respect to HEDs values, as for (4) Vesta. This result indicates that (4) Vesta and V-type asteroids have mineralogies that are not completely represented in the HEDs collection. Conclusions. An important finding is that some of the observed asteroids show spectral characteristics similar to diogenites, a result that may have relevant implications on their origin. Moreover, most of the diogenitic asteroids are not members of the Vesta classical family.001E03Astéroïde26Asteroids26Facteur réflexion27Reflectivity27Météorite28Meteorites28Variabilité29Variability29Variabilidad29Minéralogie30Mineralogy30Planète31Planets31002OTOOTOPASCAL 12-0012756 INISTSpectral and mineralogical characterization of inner main-belt V-type asteroidsDE SANCTIS (M. C.); MIGLIORINI (A.); LUZIA JASMIN (F.); LAZZARO (D.); FILACCHIONE (G.); MARCHI (S.); AMMANNITO (E.); CAPFIA (M. T.)Istituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 100/00133 Roma/Italie (1 aut., 2 aut., 5 aut., 8 aut.); Observatório Nacional, Rua Gal Jose Cristino 77, 20921-400 Rio de Janeiro/Brésil (3 aut., 4 aut.); Departement Cassiopée, Universite de Nice-Sophia Antipolis, Observatoire de la Cote d' Azur, CNRS, Boulevard de l'Observatoire/06304 Nice/France (6 aut.); Istituto di Fisica dello Spazio Interplanetario, Area di Ricerca Tor Vergata, via del Fosso del Cavaliere, 100/00133 Roma/Italie (7 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 533; No. p. 2; A77.1-A77.10; Bibl. 1/2 p.AnglaisContext. V-type asteroids in the inner main belt are thought to be genetically related to (4) Vesta as collisional fragments. We investigate their relationship with Vesta observing putative V-type asteroids. Aims. The aim of this work is to observe candidate V-type asteroids, selected in different regions of the inner main belt, to characterize them and hence better understand their relationship with (4) Vesta. Methods. We present new NIR reflectance spectra of 18 V-type candidate asteroids, selected from datasets of possible V-type asteroids. The data were obtained at the 3.6 m Telescopio Nazionale Galileo, covering the spectral range 0.7 to 2.5 μm. We derive spectral parameters from NIR spectra to infer mineralogical information of the observed asteroids. The spectra of these asteroids are examined and compared to those of Howardite-Eucrite-Diogenite meteorites (HED), of which (4) Vesta is believed to be the parent body, and other V-type asteroids observed during previous campaigns. To enlarge the data set and increase the statistical significance of the analysis, we included the data presented in our previous article, obtaining a final data set of 41 V-type asteroids. Results. The V-type asteroids examined here show a higher variability of band parameters with respect to HEDs values, as for (4) Vesta. This result indicates that (4) Vesta and V-type asteroids have mineralogies that are not completely represented in the HEDs collection. Conclusions. An important finding is that some of the observed asteroids show spectral characteristics similar to diogenites, a result that may have relevant implications on their origin. Moreover, most of the diogenitic asteroids are not members of the Vesta classical family.001E03Astéroïde; Facteur réflexion; Météorite; Variabilité; Minéralogie; PlanèteAsteroids; Reflectivity; Meteorites; Variability; Mineralogy; PlanetsVariabilidadINIST-14176.35400050733865005012-0012756 001B20 Transiting exoplanets from the CoRoT space mission: XVIII. CoRoT-18b: a massive hot Jupiter on a prograde, nearly aligned orbitG. HebrardInstitut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA1 aut.14 aut.22 aut.Observatoire de Haute-Provence, CNRS/OAMP04870 Saint-Michel-l'ObservatoireFRA1 aut.14 aut.22 aut.T. M. EvansDepartment of Physics, Denys Wilkinson Building Keble RoadOxford, OX1 3RHGBR2 aut.6 aut.27 aut.R. AlonsoObservatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE3 aut.41 aut.M. FridlundResearch and Scientific Support Department, European Space Agency, Keplerlaanl2200AG NoordwijkNLD4 aut.17 aut.26 aut.A. OfirSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR5 aut.36 aut.S. AigrainDepartment of Physics, Denys Wilkinson Building Keble RoadOxford, OX1 3RHGBR2 aut.6 aut.27 aut.T. GuillotObservatoire de la Côte d'Azur, Laboratoire Cassiopée, BP 422906304 NiceFRA7 aut.31 aut.J. M. AlmenaraLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.Instituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La LagunaTenerifeESP8 aut.20 aut.39 aut.46 aut.M. AuvergneLESIA, Observatoire de Paris, Place J. Janssen92195 MeudonFRA9 aut.10 aut.43 aut.A. BaglinLESIA, Observatoire de Paris, Place J. Janssen92195 MeudonFRA9 aut.10 aut.43 aut.P. BargeLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.A. S. BonomoLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.P. BordeInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA13 aut.18 aut.34 aut.38 aut.F. BouchyInstitut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA1 aut.14 aut.22 aut.Observatoire de Haute-Provence, CNRS/OAMP04870 Saint-Michel-l'ObservatoireFRA1 aut.14 aut.22 aut.J. CabreraInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU15 aut.19 aut.24 aut.42 aut.L. CaroneRheinisches Institut fur Umweltforschung an der Universität zu Koln, Aachener Strasse 20950931DEU16 aut.40 aut.S. CarpanoResearch and Scientific Support Department, European Space Agency, Keplerlaanl2200AG NoordwijkNLD4 aut.17 aut.26 aut.C. CavarrocInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA13 aut.18 aut.34 aut.38 aut.Sz. CsizmadiaInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU15 aut.19 aut.24 aut.42 aut.H. J. DeegInstituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La LagunaTenerifeESP8 aut.20 aut.39 aut.46 aut.M. DeleuilLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.R. F. DiazInstitut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA1 aut.14 aut.22 aut.Observatoire de Haute-Provence, CNRS/OAMP04870 Saint-Michel-l'ObservatoireFRA1 aut.14 aut.22 aut.R. DvorakUniversity of Vienna, Institute of Astronomy, Türkenschanzstr. 171180 ViennaAUT23 aut.A. EriksonInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU15 aut.19 aut.24 aut.42 aut.S. Ferraz-MelloIAG, Universidade de Sao PauloBRA25 aut.D. GandolfiResearch and Scientific Support Department, European Space Agency, Keplerlaanl2200AG NoordwijkNLD4 aut.17 aut.26 aut.N. GibsonDepartment of Physics, Denys Wilkinson Building Keble RoadOxford, OX1 3RHGBR2 aut.6 aut.27 aut.M. GillonUniversity of Liege, Allée du 6 août 17, Sart TilmanLiegeBEL28 aut.E. GuentherThüringer Landessternwarte Tautenburg, Sternwarte 507778 TautenburgDEU29 aut.30 aut.47 aut.A. HatzesThüringer Landessternwarte Tautenburg, Sternwarte 507778 TautenburgDEU29 aut.30 aut.47 aut.M. HavelObservatoire de la Côte d'Azur, Laboratoire Cassiopée, BP 422906304 NiceFRA7 aut.31 aut.L. JordaLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.H. LammerSpace Research Institute, Austrian Academy of Science, Schmiedlstr. 68042 GrazAUT33 aut.A. LegerInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA13 aut.18 aut.34 aut.38 aut.A. LlebariaLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.T. MazehSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR5 aut.36 aut.C. MoutouLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.M. OllivierInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA13 aut.18 aut.34 aut.38 aut.H. ParviainenInstituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La LagunaTenerifeESP8 aut.20 aut.39 aut.46 aut.M. P TzoldRheinisches Institut fur Umweltforschung an der Universität zu Koln, Aachener Strasse 20950931DEU16 aut.40 aut.D. QuelozObservatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE3 aut.41 aut.H. RauerInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU15 aut.19 aut.24 aut.42 aut.Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 3610623 BerlinDEU42 aut.D. RouanLESIA, Observatoire de Paris, Place J. Janssen92195 MeudonFRA9 aut.10 aut.43 aut.A. SanterneLaboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.J. SchneiderLUTH, Observatoire de Paris, CNRS, Université Paris Diderot, 5 place Jules Janssen92195 MeudonFRA45 aut.B. TingleyInstituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La LagunaTenerifeESP8 aut.20 aut.39 aut.46 aut.G. WuchterlThüringer Landessternwarte Tautenburg, Sternwarte 507778 TautenburgDEU29 aut.30 aut.47 aut.12-00128542011PASCAL 12-0012854 INISTPascal:12-0012854000D730004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AbundanceAgeAnomalyCoRot satelliteExtrasolar planetsJupiter planetObliquenessOrbitsPlanetary systemRadial velocityRotating starSpectroscopical observationStar modelsStellar evolutionStellar massYoung starsPlanète extrasolairePlanète JupiterOrbiteMasse stellaireAgeEvolution stellaireModèle stellaireAbondanceEtoile jeuneAnomalieObservation spectroscopiqueObliquitéEtoile rotationSystème planétaireVitesse radialeSatellite CoRot
We report the detection of CoRoT-18b, a massive hot Jupiter transiting in front of its host star with a period of 1.9000693 ± 0.0000028 days. This planet was discovered thanks to photometric data secured with the CoRoT satellite combined with spectroscopic and photometric ground-based follow-up observations. The planet has a mass Mp = 3.47 ± 0.38 MJup, a radius Rp = 1.31 ± 0.18 RJup, and a density ρp = 2.2 ± 0.8 g cm-3. It orbits a G9V star with a mass M* = 0.95 ± 0.15 M◦., a radius R* = 1.00±0.13 R◦., and a rotation period Prot = 5.4 ± 0.4 days. The age of the system remains uncertain, with stellar evolution models pointing either to a few tens Ma or several Ga, while gyrochronology and lithium abundance point towards ages of a few hundred Ma. This mismatch potentially points to a problem in our understanding of the evolution of young stars, with possibly significant implications for stellar physics and the interpretation of inferred sizes of exoplanets around young stars. We detected the Rossiter-McLaughlin anomaly in the CoRoT-18 system thanks to the spectroscopic observation of a transit. We measured the obliquity ψ = 20° ± 20° (sky-projected value λ = -10° ± 20°), indicating that the planet orbits in the same way as the star is rotating and that this prograde orbit is nearly aligned with the stellar equator.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)533p. 2Transiting exoplanets from the CoRoT space mission: XVIII. CoRoT-18b: a massive hot Jupiter on a prograde, nearly aligned orbitHEBRARD (G.)EVANS (T. M.)ALONSO (R.)FRIDLUND (M.)OFIR (A.)AIGRAIN (S.)GUILLOT (T.)ALMENARA (J. M.)AUVERGNE (M.)BAGLIN (A.)BARGE (P.)BONOMO (A. S.)BORDE (P.)BOUCHY (F.)CABRERA (J.)CARONE (L.)CARPANO (S.)CAVARROC (C.)CSIZMADIA (Sz.)DEEG (H. J.)DELEUIL (M.)DIAZ (R. F.)DVORAK (R.)ERIKSON (A.)FERRAZ-MELLO (S.)GANDOLFI (D.)GIBSON (N.)GILLON (M.)GUENTHER (E.)HATZES (A.)HAVEL (M.)JORDA (L.)LAMMER (H.)LEGER (A.)LLEBARIA (A.)MAZEH (T.)MOUTOU (C.)OLLIVIER (M.)PARVIAINEN (H.)PÄTZOLD (M.)QUELOZ (D.)RAUER (H.)ROUAN (D.)SANTERNE (A.)SCHNEIDER (J.)TINGLEY (B.)WUCHTERL (G.)Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA1 aut.14 aut.22 aut.Observatoire de Haute-Provence, CNRS/OAMP04870 Saint-Michel-l'ObservatoireFRA1 aut.14 aut.22 aut.Department of Physics, Denys Wilkinson Building Keble RoadOxford, OX1 3RHGBR2 aut.6 aut.27 aut.Observatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE3 aut.41 aut.Research and Scientific Support Department, European Space Agency, Keplerlaanl2200AG NoordwijkNLD4 aut.17 aut.26 aut.School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR5 aut.36 aut.Observatoire de la Côte d'Azur, Laboratoire Cassiopée, BP 422906304 NiceFRA7 aut.31 aut.Laboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie13388 MarseilleFRA8 aut.11 aut.12 aut.21 aut.32 aut.35 aut.37 aut.44 aut.Instituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La LagunaTenerifeESP8 aut.20 aut.39 aut.46 aut.LESIA, Observatoire de Paris, Place J. Janssen92195 MeudonFRA9 aut.10 aut.43 aut.Institut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA13 aut.18 aut.34 aut.38 aut.Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU15 aut.19 aut.24 aut.42 aut.Rheinisches Institut fur Umweltforschung an der Universität zu Koln, Aachener Strasse 20950931DEU16 aut.40 aut.University of Vienna, Institute of Astronomy, Türkenschanzstr. 171180 ViennaAUT23 aut.IAG, Universidade de Sao PauloBRA25 aut.University of Liege, Allée du 6 août 17, Sart TilmanLiegeBEL28 aut.Thüringer Landessternwarte Tautenburg, Sternwarte 507778 TautenburgDEU29 aut.30 aut.47 aut.Space Research Institute, Austrian Academy of Science, Schmiedlstr. 68042 GrazAUT33 aut.Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 3610623 BerlinDEU42 aut.LUTH, Observatoire de Paris, CNRS, Université Paris Diderot, 5 place Jules Janssen92195 MeudonFRA45 aut.A130.1-A130.142011ENGINIST141763540005073386505200000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0012854PAAstronomy and astrophysics : (Berlin. Print)FRAWe report the detection of CoRoT-18b, a massive hot Jupiter transiting in front of its host star with a period of 1.9000693 ± 0.0000028 days. This planet was discovered thanks to photometric data secured with the CoRoT satellite combined with spectroscopic and photometric ground-based follow-up observations. The planet has a mass Mp = 3.47 ± 0.38 MJup, a radius Rp = 1.31 ± 0.18 RJup, and a density ρp = 2.2 ± 0.8 g cm-3. It orbits a G9V star with a mass M* = 0.95 ± 0.15 M◦., a radius R* = 1.00±0.13 R◦., and a rotation period Prot = 5.4 ± 0.4 days. The age of the system remains uncertain, with stellar evolution models pointing either to a few tens Ma or several Ga, while gyrochronology and lithium abundance point towards ages of a few hundred Ma. This mismatch potentially points to a problem in our understanding of the evolution of young stars, with possibly significant implications for stellar physics and the interpretation of inferred sizes of exoplanets around young stars. We detected the Rossiter-McLaughlin anomaly in the CoRoT-18 system thanks to the spectroscopic observation of a transit. We measured the obliquity ψ = 20° ± 20° (sky-projected value λ = -10° ± 20°), indicating that the planet orbits in the same way as the star is rotating and that this prograde orbit is nearly aligned with the stellar equator.001E03Planète extrasolaire26Extrasolar planets26Planète Jupiter27Jupiter planet27Orbite28Orbits28Masse stellaire29Stellar mass29Age30Age30Edad30Evolution stellaire31Stellar evolution31Modèle stellaire32Star models32Abondance33Abundance33Etoile jeune34Young stars34Anomalie35Anomaly35Anomalía35Observation spectroscopique36Spectroscopical observation36Observación espectroscópica36Obliquité37Obliqueness37Oblicuidad37Etoile rotation38Rotating star38Estrella rotación38Système planétaire39Planetary system39Sistema planetario39Vitesse radiale40Radial velocity40Satellite CoRotCD96CoRot satelliteCD96Satélite CoRotCD96002OTOOTOPASCAL 12-0012854 INISTTransiting exoplanets from the CoRoT space mission: XVIII. CoRoT-18b: a massive hot Jupiter on a prograde, nearly aligned orbitHEBRARD (G.); EVANS (T. M.); ALONSO (R.); FRIDLUND (M.); OFIR (A.); AIGRAIN (S.); GUILLOT (T.); ALMENARA (J. M.); AUVERGNE (M.); BAGLIN (A.); BARGE (P.); BONOMO (A. S.); BORDE (P.); BOUCHY (F.); CABRERA (J.); CARONE (L.); CARPANO (S.); CAVARROC (C.); CSIZMADIA (Sz.); DEEG (H. J.); DELEUIL (M.); DIAZ (R. F.); DVORAK (R.); ERIKSON (A.); FERRAZ-MELLO (S.); GANDOLFI (D.); GIBSON (N.); GILLON (M.); GUENTHER (E.); HATZES (A.); HAVEL (M.); JORDA (L.); LAMMER (H.); LEGER (A.); LLEBARIA (A.); MAZEH (T.); MOUTOU (C.); OLLIVIER (M.); PARVIAINEN (H.); PÄTZOLD (M.); QUELOZ (D.); RAUER (H.); ROUAN (D.); SANTERNE (A.); SCHNEIDER (J.); TINGLEY (B.); WUCHTERL (G.)Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago/75014 Paris/France (1 aut., 14 aut., 22 aut.); Observatoire de Haute-Provence, CNRS/OAMP/04870 Saint-Michel-l'Observatoire/France (1 aut., 14 aut., 22 aut.); Department of Physics, Denys Wilkinson Building Keble Road/Oxford, OX1 3RH/Royaume-Uni (2 aut., 6 aut., 27 aut.); Observatoire de l'Université de Genève, 51 chemin des Maillettes/1290 Sauverny/Suisse (3 aut., 41 aut.); Research and Scientific Support Department, European Space Agency, Keplerlaanl/2200AG Noordwijk/Pays-Bas (4 aut., 17 aut., 26 aut.); School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University/Tel Aviv/Israël (5 aut., 36 aut.); Observatoire de la Côte d'Azur, Laboratoire Cassiopée, BP 4229/06304 Nice/France (7 aut., 31 aut.); Laboratoire d'Astrophysique de Marseille, 38 rue Frédéric JoliotCurie/13388 Marseille/France (8 aut., 11 aut., 12 aut., 21 aut., 32 aut., 35 aut., 37 aut., 44 aut.); Instituto de Astrofísica de Canarias, and Universidad de La Laguna, Dept. de Astrofisica, 38205 La Laguna/Tenerife/Espagne (8 aut., 20 aut., 39 aut., 46 aut.); LESIA, Observatoire de Paris, Place J. Janssen/92195 Meudon/France (9 aut., 10 aut., 43 aut.); Institut d'Astrophysique Spatiale, Universite Paris XI/91405 Orsay/France (13 aut., 18 aut., 34 aut., 38 aut.); Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2/12489 Berlin/Allemagne (15 aut., 19 aut., 24 aut., 42 aut.); Rheinisches Institut fur Umweltforschung an der Universität zu Koln, Aachener Strasse 209/50931/Allemagne (16 aut., 40 aut.); University of Vienna, Institute of Astronomy, Türkenschanzstr. 17/1180 Vienna/Autriche (23 aut.); IAG, Universidade de Sao Paulo/Brésil (25 aut.); University of Liege, Allée du 6 août 17, Sart Tilman/Liege/Belgique (28 aut.); Thüringer Landessternwarte Tautenburg, Sternwarte 5/07778 Tautenburg/Allemagne (29 aut., 30 aut., 47 aut.); Space Research Institute, Austrian Academy of Science, Schmiedlstr. 6/8042 Graz/Autriche (33 aut.); Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36/10623 Berlin/Allemagne (42 aut.); LUTH, Observatoire de Paris, CNRS, Université Paris Diderot, 5 place Jules Janssen/92195 Meudon/France (45 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 533; No. p. 2; A130.1-A130.14; Bibl. 3/4 p.AnglaisWe report the detection of CoRoT-18b, a massive hot Jupiter transiting in front of its host star with a period of 1.9000693 ± 0.0000028 days. This planet was discovered thanks to photometric data secured with the CoRoT satellite combined with spectroscopic and photometric ground-based follow-up observations. The planet has a mass Mp = 3.47 ± 0.38 MJup, a radius Rp = 1.31 ± 0.18 RJup, and a density ρp = 2.2 ± 0.8 g cm-3. It orbits a G9V star with a mass M* = 0.95 ± 0.15 M◦., a radius R* = 1.00±0.13 R◦., and a rotation period Prot = 5.4 ± 0.4 days. The age of the system remains uncertain, with stellar evolution models pointing either to a few tens Ma or several Ga, while gyrochronology and lithium abundance point towards ages of a few hundred Ma. This mismatch potentially points to a problem in our understanding of the evolution of young stars, with possibly significant implications for stellar physics and the interpretation of inferred sizes of exoplanets around young stars. We detected the Rossiter-McLaughlin anomaly in the CoRoT-18 system thanks to the spectroscopic observation of a transit. We measured the obliquity ψ = 20° ± 20° (sky-projected value λ = -10° ± 20°), indicating that the planet orbits in the same way as the star is rotating and that this prograde orbit is nearly aligned with the stellar equator.001E03Planète extrasolaire; Planète Jupiter; Orbite; Masse stellaire; Age; Evolution stellaire; Modèle stellaire; Abondance; Etoile jeune; Anomalie; Observation spectroscopique; Obliquité; Etoile rotation; Système planétaire; Vitesse radiale; Satellite CoRotExtrasolar planets; Jupiter planet; Orbits; Stellar mass; Age; Stellar evolution; Star models; Abundance; Young stars; Anomaly; Spectroscopical observation; Obliqueness; Rotating star; Planetary system; Radial velocity; CoRot satelliteEdad; Anomalía; Observación espectroscópica; Oblicuidad; Estrella rotación; Sistema planetario; Satélite CoRotINIST-14176.35400050733865052012-0012854 001B21 Prognostic Value of Routine Cardiac Magnetic Resonance Assessment of Left Ventricular Ejection Fraction and Myocardial Damage An International, Multicenter StudyIgor KlemDuke University Medical CenterDurham, NCUSA1 aut.11 aut.12 aut.13 aut.Dipan J. ShahMethodist DeBakey Heart & Vascular CenterHouston, TXUSA2 aut.Richard D. WhiteThe Cleveland Clinic FoundationCleveland, OHUSA3 aut.Dudley J. PennellRoyal Brompton HospitalLondonGBR4 aut.Albert C. Van RossumVU University Medical CenterAmsterdamNLD5 aut.Matthias RegenfusFriedrich Alexander Universitat ErlangenErlangenDEU6 aut.Udo SechtemRobert-Bosch-KrankenhausStuttgartDEU7 aut.Paulo R. SchvartzmanHospital Mãe de DeusPorto AlegreBRA8 aut.Peter HunoldUniversitatsklinikum Schleswig-HolsteinLübeckDEU9 aut.Pierre CroisilleUniversité J. Monnet Saint-Etienne, Saint-Etienne, CREATIS, UMR CNRS 5220 - INSERM U1044, Universite de LyonFRA10 aut.Michele ParkerDuke University Medical CenterDurham, NCUSA1 aut.11 aut.12 aut.13 aut.Robert M. JuddDuke University Medical CenterDurham, NCUSA1 aut.11 aut.12 aut.13 aut.Raymond J. KimDuke University Medical CenterDurham, NCUSA1 aut.11 aut.12 aut.13 aut.12-00130812011PASCAL 12-0013081 INISTPascal:12-0013081000D721941-9651Circulation. Cardiovascular imagingCenterCoronary heart diseaseCountriesDataDelayEjection fractionHeartHemodynamicsHumanInformationInternationalLeft ventricleMagnetic resonanceMedical imageryMedical screeningMethodMulticenter studyMyocardial infarctionMyocardiumNuclear magnetic resonance imagingPatientPredictive valuePrognosisReferenceResultSiteStandardStandardsTechniqueVentricular ejectionCardiopathie coronaireInfarctus du myocardeValeur prédictiveCoeurRésonance magnétiqueImagerie RMNVentricule gaucheEjection ventriculaireFraction éjectionMyocardeInternationalEtude multicentriqueRéférenceEtalonNormeHommeMaladePronosticMéthodeTechniqueRésultatCentrePaysRetardImagerie médicaleDépistageDonnéeInformationSiteHémodynamique
Background-Cardiac magnetic resonance (CMR) is considered the reference standard for assessment of left ventricular ejection fraction (LVEF) and myocardial damage. However, few studies have evaluated the relationship between CMR findings and patient outcome, and of these, most are small and none multicenter. We performed an international, multicenter study to assess the prognostic importance of routine CMR in patients with known or suspected heart disease. Methods and Results-From 10 centers in 6 countries, consecutive patients undergoing routine CMR assessment of LVEF and myocardial damage by cine and delayed-enhancement imaging (DE-CMR), respectively, were screened for enrollment. Clinical data, CMR protocol information, and findings were collected at all sites and submitted to the data coordinating center for verification of completeness and analysis. The primary end point was all-cause mortality. A total of 1560 patients (age, 59±14 years; 70% men) were enrolled. Mean LVEF was 45±18%, and 1049 (67%) patients had hyperenhanced tissue (HE) on DE-CMR indicative of damage. During a median follow-up time of 2.4 years (interquartile range, 1.2, 2.9 years), 176 (11.3%) patients died. Patients who died were more likely to be older (P<0.0001), have coronary disease (P=0.004), have lower LVEF (P<0.0001), and have more segments with HE (P<0.0001). In multivariable analysis, age, LVEF, and number of segments with HE were independent predictors of mortality. Among patients with near-normal LVEF (≥50%), those with above-median HE (>4 segments) had reduced survival compared to patients with below- or at-median HE (P=0.02). Conclusions-Both LVEF and amount of myocardial damage as assessed by routine CMR are independent predictors of all-cause mortality. Even in patients with near-normal LVEF, significant damage identifies a cohort with a high risk for early mortality.
1941-965146Prognostic Value of Routine Cardiac Magnetic Resonance Assessment of Left Ventricular Ejection Fraction and Myocardial Damage An International, Multicenter StudyKLEM (Igor)SHAH (Dipan J.)WHITE (Richard D.)PENNELL (Dudley J.)VAN ROSSUM (Albert C.)REGENFUS (Matthias)SECHTEM (Udo)SCHVARTZMAN (Paulo R.)HUNOLD (Peter)CROISILLE (Pierre)PARKER (Michele)JUDD (Robert M.)KIM (Raymond J.)Duke University Medical CenterDurham, NCUSA1 aut.11 aut.12 aut.13 aut.Methodist DeBakey Heart & Vascular CenterHouston, TXUSA2 aut.The Cleveland Clinic FoundationCleveland, OHUSA3 aut.Royal Brompton HospitalLondonGBR4 aut.VU University Medical CenterAmsterdamNLD5 aut.Friedrich Alexander Universitat ErlangenErlangenDEU6 aut.Robert-Bosch-KrankenhausStuttgartDEU7 aut.Hospital Mãe de DeusPorto AlegreBRA8 aut.Universitatsklinikum Schleswig-HolsteinLübeckDEU9 aut.Université J. Monnet Saint-Etienne, Saint-Etienne, CREATIS, UMR CNRS 5220 - INSERM U1044, Universite de LyonFRA10 aut.610-6192011ENGINIST280423540005073438400500000© 2012 INIST-CNRS. All rights reserved.50 ref.12-0013081PACirculation. Cardiovascular imagingUSABackground-Cardiac magnetic resonance (CMR) is considered the reference standard for assessment of left ventricular ejection fraction (LVEF) and myocardial damage. However, few studies have evaluated the relationship between CMR findings and patient outcome, and of these, most are small and none multicenter. We performed an international, multicenter study to assess the prognostic importance of routine CMR in patients with known or suspected heart disease. Methods and Results-From 10 centers in 6 countries, consecutive patients undergoing routine CMR assessment of LVEF and myocardial damage by cine and delayed-enhancement imaging (DE-CMR), respectively, were screened for enrollment. Clinical data, CMR protocol information, and findings were collected at all sites and submitted to the data coordinating center for verification of completeness and analysis. The primary end point was all-cause mortality. A total of 1560 patients (age, 59±14 years; 70% men) were enrolled. Mean LVEF was 45±18%, and 1049 (67%) patients had hyperenhanced tissue (HE) on DE-CMR indicative of damage. During a median follow-up time of 2.4 years (interquartile range, 1.2, 2.9 years), 176 (11.3%) patients died. Patients who died were more likely to be older (P<0.0001), have coronary disease (P=0.004), have lower LVEF (P<0.0001), and have more segments with HE (P<0.0001). In multivariable analysis, age, LVEF, and number of segments with HE were independent predictors of mortality. Among patients with near-normal LVEF (≥50%), those with above-median HE (>4 segments) had reduced survival compared to patients with below- or at-median HE (P=0.02). Conclusions-Both LVEF and amount of myocardial damage as assessed by routine CMR are independent predictors of all-cause mortality. Even in patients with near-normal LVEF, significant damage identifies a cohort with a high risk for early mortality.002B24F01002B12A03002B12A05Cardiopathie coronaire01Coronary heart disease01Cardiopatía coronaria01Infarctus du myocardeNM02Myocardial infarctionNM02Infarto miocardioNM02Valeur prédictive09Predictive value09Valor predictivo09Coeur10Heart10Corazón10Résonance magnétique11Magnetic resonance11Resonancia magnética11Imagerie RMN12Nuclear magnetic resonance imaging12Imaginería RMN12Ventricule gauche13Left ventricle13Ventrículo izquierdo13Ejection ventriculaire14Ventricular ejection14Eyección ventricular14Fraction éjection15Ejection fraction15Fracción eyección15Myocarde16Myocardium16Miocardio16International17International17Internacional17Etude multicentrique18Multicenter study18Estudio multicéntrico18Référence19Reference19Referencia19Etalon20Standard20Marco20Norme21Standards21Norma21Homme22Human22Hombre22Malade23Patient23Enfermo23Pronostic24Prognosis24Pronóstico24Méthode25Method25Método25Technique26Technique26Técnica26Résultat27Result27Resultado27Centre28Center28Centro28Pays29Countries29País29Retard30Delay30Retraso30Imagerie médicale31Medical imagery31Imaginería médica31Dépistage32Medical screening32Descubrimiento32Donnée33Data33Dato33Information34Information34Información34Site35Site35Sitio35Hémodynamique78Hemodynamics78Hemodinámica78Pathologie de l'appareil circulatoire37Cardiovascular disease37Aparato circulatorio patología37Pathologie du myocarde38Myocardial disease38Miocardio patología38002OTOOTOPASCAL 12-0013081 INISTPrognostic Value of Routine Cardiac Magnetic Resonance Assessment of Left Ventricular Ejection Fraction and Myocardial Damage An International, Multicenter StudyKLEM (Igor); SHAH (Dipan J.); WHITE (Richard D.); PENNELL (Dudley J.); VAN ROSSUM (Albert C.); REGENFUS (Matthias); SECHTEM (Udo); SCHVARTZMAN (Paulo R.); HUNOLD (Peter); CROISILLE (Pierre); PARKER (Michele); JUDD (Robert M.); KIM (Raymond J.)Duke University Medical Center/Durham, NC/Etats-Unis (1 aut., 11 aut., 12 aut., 13 aut.); Methodist DeBakey Heart & Vascular Center/Houston, TX/Etats-Unis (2 aut.); The Cleveland Clinic Foundation/Cleveland, OH/Etats-Unis (3 aut.); Royal Brompton Hospital/London/Royaume-Uni (4 aut.); VU University Medical Center/Amsterdam/Pays-Bas (5 aut.); Friedrich Alexander Universitat Erlangen/Erlangen/Allemagne (6 aut.); Robert-Bosch-Krankenhaus/Stuttgart/Allemagne (7 aut.); Hospital Mãe de Deus/Porto Alegre/Brésil (8 aut.); Universitatsklinikum Schleswig-Holstein/Lübeck/Allemagne (9 aut.); Université J. Monnet Saint-Etienne, Saint-Etienne, CREATIS, UMR CNRS 5220 - INSERM U1044, Universite de Lyon/France (10 aut.)
Publication en série; Niveau analytique
Circulation. Cardiovascular imaging; ISSN 1941-9651; Etats-Unis; Da. 2011; Vol. 4; No. 6; Pp. 610-619; Bibl. 50 ref.AnglaisBackground-Cardiac magnetic resonance (CMR) is considered the reference standard for assessment of left ventricular ejection fraction (LVEF) and myocardial damage. However, few studies have evaluated the relationship between CMR findings and patient outcome, and of these, most are small and none multicenter. We performed an international, multicenter study to assess the prognostic importance of routine CMR in patients with known or suspected heart disease. Methods and Results-From 10 centers in 6 countries, consecutive patients undergoing routine CMR assessment of LVEF and myocardial damage by cine and delayed-enhancement imaging (DE-CMR), respectively, were screened for enrollment. Clinical data, CMR protocol information, and findings were collected at all sites and submitted to the data coordinating center for verification of completeness and analysis. The primary end point was all-cause mortality. A total of 1560 patients (age, 59±14 years; 70% men) were enrolled. Mean LVEF was 45±18%, and 1049 (67%) patients had hyperenhanced tissue (HE) on DE-CMR indicative of damage. During a median follow-up time of 2.4 years (interquartile range, 1.2, 2.9 years), 176 (11.3%) patients died. Patients who died were more likely to be older (P<0.0001), have coronary disease (P=0.004), have lower LVEF (P<0.0001), and have more segments with HE (P<0.0001). In multivariable analysis, age, LVEF, and number of segments with HE were independent predictors of mortality. Among patients with near-normal LVEF (≥50%), those with above-median HE (>4 segments) had reduced survival compared to patients with below- or at-median HE (P=0.02). Conclusions-Both LVEF and amount of myocardial damage as assessed by routine CMR are independent predictors of all-cause mortality. Even in patients with near-normal LVEF, significant damage identifies a cohort with a high risk for early mortality.002B24F01; 002B12A03; 002B12A05Cardiopathie coronaire; Infarctus du myocarde; Valeur prédictive; Coeur; Résonance magnétique; Imagerie RMN; Ventricule gauche; Ejection ventriculaire; Fraction éjection; Myocarde; International; Etude multicentrique; Référence; Etalon; Norme; Homme; Malade; Pronostic; Méthode; Technique; Résultat; Centre; Pays; Retard; Imagerie médicale; Dépistage; Donnée; Information; Site; HémodynamiquePathologie de l'appareil circulatoire; Pathologie du myocardeCoronary heart disease; Myocardial infarction; Predictive value; Heart; Magnetic resonance; Nuclear magnetic resonance imaging; Left ventricle; Ventricular ejection; Ejection fraction; Myocardium; International; Multicenter study; Reference; Standard; Standards; Human; Patient; Prognosis; Method; Technique; Result; Center; Countries; Delay; Medical imagery; Medical screening; Data; Information; Site; HemodynamicsCardiovascular disease; Myocardial diseaseCardiopatía coronaria; Infarto miocardio; Valor predictivo; Corazón; Resonancia magnética; Imaginería RMN; Ventrículo izquierdo; Eyección ventricular; Fracción eyección; Miocardio; Internacional; Estudio multicéntrico; Referencia; Marco; Norma; Hombre; Enfermo; Pronóstico; Método; Técnica; Resultado; Centro; País; Retraso; Imaginería médica; Descubrimiento; Dato; Información; Sitio; HemodinámicaINIST-28042.35400050734384005012-0013081 001B22 THE FULL RENORMALIZATION HORSESHOE FOR UNIMODAL MAPS OF HIGHER DEGREE: EXPONENTIAL CONTRACTION ALONG HYBRID CLASSESArtur AvilaCNRS UMR 7586, Institut de Mathematiques de Jussieu, 175 rue du Chevaleret75013 ParisFRA1 aut.IMPA, Estrada Dona Castorina, 11022460-320 Rio de Janeiro, RJBRA1 aut.Mikhail LyubichDepartment of Mathematics, Stony Brook UniversityStony Brook, NY 11794-3651USA2 aut.12-00145422011PASCAL 12-0014542 INISTPascal:12-0014542000D710073-8301Publ. math. : (Bures-sur-Yvette)Publications mathématiques : (Bures-sur-Yvette)AnalysisBounded operatorCombinatoricsContractionIterationRenormalizationRenormalisationContractionCombinatoireOpérateur bornéAnalyseItération37F25Application exponentielle05XX
We prove exponential contraction of renormalization along hybrid classes of infinitely renormalizable unimodal maps (with arbitrary combinatorics), in any even degree d. We then conclude that orbits of renormalization are asymptotic to the full renormalization horseshoe, which we construct. Our argument for exponential contraction is based on a precompactness property of the renormalization operator ("beau bounds"), which is leveraged in the abstract analysis of holomorphic iteration. Besides greater generality, it yields a unified approach to all combinatorics and degrees: there is no need to account for the varied geometric details of the dynamics, which were the typical source of contraction in previous restricted proofs.
0073-8301Publ. math. : (Bures-sur-Yvette)114THE FULL RENORMALIZATION HORSESHOE FOR UNIMODAL MAPS OF HIGHER DEGREE: EXPONENTIAL CONTRACTION ALONG HYBRID CLASSESAVILA (Artur)LYUBICH (Mikhail)CNRS UMR 7586, Institut de Mathematiques de Jussieu, 175 rue du Chevaleret75013 ParisFRA1 aut.IMPA, Estrada Dona Castorina, 11022460-320 Rio de Janeiro, RJBRA1 aut.Department of Mathematics, Stony Brook UniversityStony Brook, NY 11794-3651USA2 aut.171-2232011ENGINIST92053540005056626500300000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0014542PAPublications mathématiques : (Bures-sur-Yvette)DEUWe prove exponential contraction of renormalization along hybrid classes of infinitely renormalizable unimodal maps (with arbitrary combinatorics), in any even degree d. We then conclude that orbits of renormalization are asymptotic to the full renormalization horseshoe, which we construct. Our argument for exponential contraction is based on a precompactness property of the renormalization operator ("beau bounds"), which is leveraged in the abstract analysis of holomorphic iteration. Besides greater generality, it yields a unified approach to all combinatorics and degrees: there is no need to account for the varied geometric details of the dynamics, which were the typical source of contraction in previous restricted proofs.001A02K01001A02G04001A02B01Renormalisation17Renormalization17Renormalización17Contraction18Contraction18Contracción18Combinatoire19Combinatorics19Combinatoria19Opérateur borné20Bounded operator20Operador acotado20Analyse21Analysis21Análisis21Itération22Iteration22Iteracción2237F25INC70Application exponentielleINC7105XXINC72002OTOOTOPASCAL 12-0014542 INISTTHE FULL RENORMALIZATION HORSESHOE FOR UNIMODAL MAPS OF HIGHER DEGREE: EXPONENTIAL CONTRACTION ALONG HYBRID CLASSESAVILA (Artur); LYUBICH (Mikhail)CNRS UMR 7586, Institut de Mathematiques de Jussieu, 175 rue du Chevaleret/75013 Paris/France (1 aut.); IMPA, Estrada Dona Castorina, 110/22460-320 Rio de Janeiro, RJ/Brésil (1 aut.); Department of Mathematics, Stony Brook University/Stony Brook, NY 11794-3651/Etats-Unis (2 aut.)
Publication en série; Niveau analytique
Publications mathématiques : (Bures-sur-Yvette); ISSN 0073-8301; Allemagne; Da. 2011; Vol. 114; Pp. 171-223; Bibl. 1 p.1/4AnglaisWe prove exponential contraction of renormalization along hybrid classes of infinitely renormalizable unimodal maps (with arbitrary combinatorics), in any even degree d. We then conclude that orbits of renormalization are asymptotic to the full renormalization horseshoe, which we construct. Our argument for exponential contraction is based on a precompactness property of the renormalization operator ("beau bounds"), which is leveraged in the abstract analysis of holomorphic iteration. Besides greater generality, it yields a unified approach to all combinatorics and degrees: there is no need to account for the varied geometric details of the dynamics, which were the typical source of contraction in previous restricted proofs.001A02K01; 001A02G04; 001A02B01Renormalisation; Contraction; Combinatoire; Opérateur borné; Analyse; Itération; 37F25; Application exponentielle; 05XXRenormalization; Contraction; Combinatorics; Bounded operator; Analysis; IterationRenormalización; Contracción; Combinatoria; Operador acotado; Análisis; IteracciónINIST-9205.35400050566265003012-0014542 001B23 A carbon isotope challenge to the snowball EarthP. SansjofreÉquipe de Geochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Univ. Paris Diderot, UMR 7154 CNRS75238 ParisFRA1 aut.2 aut.6 aut.Departamento de Geofisica, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de São Paulo, Rua do Matao 122605508-900 São PauloBRA1 aut.3 aut.M. AderÉquipe de Geochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Univ. Paris Diderot, UMR 7154 CNRS75238 ParisFRA1 aut.2 aut.6 aut.R. I. F. TrindadeDepartamento de Geofisica, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de São Paulo, Rua do Matao 122605508-900 São PauloBRA1 aut.3 aut.M. ElieUMR CNRS 7566 G2R, Nancy-Université, CNRS, BP 23954506 Vandoeuvre-lès-NancyFRA4 aut.J. LyonsInstitute of Geophysics and Planetary Physics, University of California, Los Angeles, 595 Charles Young Dr. EastLos Angeles, California 90095-1567USA5 aut.P. CartignyÉquipe de Geochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Univ. Paris Diderot, UMR 7154 CNRS75238 ParisFRA1 aut.2 aut.6 aut.A. C. R. NogueiraFaculdade de Geologia, Instituto de Geociências, Universidade Federal do ParáCEP 66.075-110, BelémBRA7 aut.12-00148652011PASCAL 12-0014865 INISTPascal:12-0014865000D700028-0836Nature : (Lond.)Nature : (London)AmazoniaBrazilC-13/C-12ChinaO-17/O-16albedoatmospheric emissioncarboncarbon dioxidecarbonate rocksdegassingglaciationgreenhouse gaspaleoatmospherepartial pressurephotosynthesisrevisionstable isotopesupper ProterozoicvolcanismIsotope stableCarboneC 13-C 12Protérozoïque supGlaciationAlbedoGaz effet serreDioxyde carboneVolcanismeEmission atmosphériqueDégazagePression partielleRoche carbonatéeBrésilRévisionPaléoatmosphèreAmazonieChinePhotosynthèseO 17-O 16Terre boule de neigeSnowball Earth
The snowball Earth hypothesis postulates that the planet was entirely covered by ice for millions of years in the Neoproterozoic era, in a self-enhanced glaciation caused by the high albedo of the ice-covered planet. In a hard-snowball picture, the subsequent rapid unfreezing resulted from an ultra-greenhouse event attributed to the buildup of volcanic carbon dioxide (CO2) during glaciation1. High partial pressures of atmospheric CO2 (pCO2; from 20,000 to 90,000 p.p.m.v.) in the aftermath of the Marinoan glaciation (˜635 Myr ago) have been inferred from both boron and triple oxygen isotopes2,3. These pCO2 values are 50 to 225 times higher than present-day levels. Here, we re-evaluate these estimates using paired carbon isotopic data for carbonate layers that cap Neoproterozoic glacial deposits and are considered to record post-glacial sea level rise'. The new data reported here for Brazilian cap carbonates, together with previous ones for time-equivalent units4-8, provide PCO2 estimates lower than 3,200 p.p.m.v.-and possibly as low as the current value of ˜400 p.p.m.v. Our new constraint, and our re-interpretation of the boron and triple oxygen isotope data, provide a completely different picture of the late Neoproterozoic environment, with low atmospheric concentrations of carbon dioxide and oxygen that are inconsistent with a hard-snowball Earth.
0028-0836NATUASNature : (Lond.)4787367A carbon isotope challenge to the snowball EarthSANSJOFRE (P.)ADER (M.)TRINDADE (R. I. F.)ELIE (M.)LYONS (J.)CARTIGNY (P.)NOGUEIRA (A. C. R.)Équipe de Geochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Univ. Paris Diderot, UMR 7154 CNRS75238 ParisFRA1 aut.2 aut.6 aut.Departamento de Geofisica, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de São Paulo, Rua do Matao 122605508-900 São PauloBRA1 aut.3 aut.UMR CNRS 7566 G2R, Nancy-Université, CNRS, BP 23954506 Vandoeuvre-lès-NancyFRA4 aut.Institute of Geophysics and Planetary Physics, University of California, Los Angeles, 595 Charles Young Dr. EastLos Angeles, California 90095-1567USA5 aut.Faculdade de Geologia, Instituto de Geociências, Universidade Federal do ParáCEP 66.075-110, BelémBRA7 aut.93-962011ENGINIST1423540005078005602000000© 2012 INIST-CNRS. All rights reserved.31 ref.12-0014865PCRANature : (London)GBRThe snowball Earth hypothesis postulates that the planet was entirely covered by ice for millions of years in the Neoproterozoic era, in a self-enhanced glaciation caused by the high albedo of the ice-covered planet. In a hard-snowball picture, the subsequent rapid unfreezing resulted from an ultra-greenhouse event attributed to the buildup of volcanic carbon dioxide (CO2) during glaciation1. High partial pressures of atmospheric CO2 (pCO2; from 20,000 to 90,000 p.p.m.v.) in the aftermath of the Marinoan glaciation (˜635 Myr ago) have been inferred from both boron and triple oxygen isotopes2,3. These pCO2 values are 50 to 225 times higher than present-day levels. Here, we re-evaluate these estimates using paired carbon isotopic data for carbonate layers that cap Neoproterozoic glacial deposits and are considered to record post-glacial sea level rise'. The new data reported here for Brazilian cap carbonates, together with previous ones for time-equivalent units4-8, provide PCO2 estimates lower than 3,200 p.p.m.v.-and possibly as low as the current value of ˜400 p.p.m.v. Our new constraint, and our re-interpretation of the boron and triple oxygen isotope data, provide a completely different picture of the late Neoproterozoic environment, with low atmospheric concentrations of carbon dioxide and oxygen that are inconsistent with a hard-snowball Earth.001E01I001E01C01224A220C01Isotope stable01stable isotopes01Isótopo estable01Carbone02carbon02Carbono02C 13-C 1203C-13/C-1203C 13-C 1203Protérozoïque supNX04upper ProterozoicNX04Proterozoico supNX04Glaciation05glaciation05Glaciación05Albedo06albedo06Albedo06Gaz effet serre07greenhouse gas07Dioxyde carbone08carbon dioxide08Volcanisme09volcanism09Emission atmosphérique10atmospheric emission10Dégazage11degassing11Pression partielle12partial pressure12Presión parcial12Roche carbonatéeNV13carbonate rocksNV13Roca carbonatadaNV13BrésilNG14BrazilNG14BrasilNG14Révision15revision15Revisión15Paléoatmosphère16paleoatmosphere16Paleoatmósfera16AmazonieNG17AmazoniaNG17ChineNG18ChinaNG18ChinaNG18Photosynthèse19photosynthesis19Fotosíntesis19O 17-O 1620O-17/O-1620Terre boule de neigeINC52Snowball EarthINC53ProtérozoïqueNXProterozoicNXProterozoicoNXPrécambrienNXPrecambrianNXRoche sédimentaireNVsedimentary rocksNVRoca sedimentariaNVAmérique du Sud564South America564America del sur564Extrême OrientNGFar EastNGExtremo OrienteNGAsie564Asia564Asia564002PSIPSIPASCAL 12-0014865 INISTA carbon isotope challenge to the snowball EarthSANSJOFRE (P.); ADER (M.); TRINDADE (R. I. F.); ELIE (M.); LYONS (J.); CARTIGNY (P.); NOGUEIRA (A. C. R.)Équipe de Geochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Univ. Paris Diderot, UMR 7154 CNRS/75238 Paris/France (1 aut., 2 aut., 6 aut.); Departamento de Geofisica, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de São Paulo, Rua do Matao 1226/05508-900 São Paulo/Brésil (1 aut., 3 aut.); UMR CNRS 7566 G2R, Nancy-Université, CNRS, BP 239/54506 Vandoeuvre-lès-Nancy/France (4 aut.); Institute of Geophysics and Planetary Physics, University of California, Los Angeles, 595 Charles Young Dr. East/Los Angeles, California 90095-1567/Etats-Unis (5 aut.); Faculdade de Geologia, Instituto de Geociências, Universidade Federal do Pará/CEP 66.075-110, Belém/Brésil (7 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Nature : (London); ISSN 0028-0836; Coden NATUAS; Royaume-Uni; Da. 2011; Vol. 478; No. 7367; Pp. 93-96; Bibl. 31 ref.AnglaisThe snowball Earth hypothesis postulates that the planet was entirely covered by ice for millions of years in the Neoproterozoic era, in a self-enhanced glaciation caused by the high albedo of the ice-covered planet. In a hard-snowball picture, the subsequent rapid unfreezing resulted from an ultra-greenhouse event attributed to the buildup of volcanic carbon dioxide (CO2) during glaciation1. High partial pressures of atmospheric CO2 (pCO2; from 20,000 to 90,000 p.p.m.v.) in the aftermath of the Marinoan glaciation (˜635 Myr ago) have been inferred from both boron and triple oxygen isotopes2,3. These pCO2 values are 50 to 225 times higher than present-day levels. Here, we re-evaluate these estimates using paired carbon isotopic data for carbonate layers that cap Neoproterozoic glacial deposits and are considered to record post-glacial sea level rise'. The new data reported here for Brazilian cap carbonates, together with previous ones for time-equivalent units4-8, provide PCO2 estimates lower than 3,200 p.p.m.v.-and possibly as low as the current value of ˜400 p.p.m.v. Our new constraint, and our re-interpretation of the boron and triple oxygen isotope data, provide a completely different picture of the late Neoproterozoic environment, with low atmospheric concentrations of carbon dioxide and oxygen that are inconsistent with a hard-snowball Earth.001E01I; 001E01C01; 224A; 220C01Isotope stable; Carbone; C 13-C 12; Protérozoïque sup; Glaciation; Albedo; Gaz effet serre; Dioxyde carbone; Volcanisme; Emission atmosphérique; Dégazage; Pression partielle; Roche carbonatée; Brésil; Révision; Paléoatmosphère; Amazonie; Chine; Photosynthèse; O 17-O 16; Terre boule de neige; Snowball EarthProtérozoïque; Précambrien; Roche sédimentaire; Amérique du Sud; Extrême Orient; Asiestable isotopes; carbon; C-13/C-12; upper Proterozoic; glaciation; albedo; greenhouse gas; carbon dioxide; volcanism; atmospheric emission; degassing; partial pressure; carbonate rocks; Brazil; revision; paleoatmosphere; Amazonia; China; photosynthesis; O-17/O-16Proterozoic; Precambrian; sedimentary rocks; South America; Far East; AsiaIsótopo estable; Carbono; C 13-C 12; Proterozoico sup; Glaciación; Albedo; Presión parcial; Roca carbonatada; Brasil; Revisión; Paleoatmósfera; China; FotosíntesisINIST-142.35400050780056020012-0014865 001B24 Aerobic bacterial pyrite oxidation and acid rock drainage during the Great Oxidation EventKurt O. KonhauserDepartment of Earth & Atmospheric Sciences, University of AlbertaEdmonton, Alberta T6G 2E3CAN1 aut.2 aut.4 aut.Stefan V. LalondeDepartment of Earth & Atmospheric Sciences, University of AlbertaEdmonton, Alberta T6G 2E3CAN1 aut.2 aut.4 aut.Université Europeene de Bretagne, Institut Universitaire Europeen de la MerPlouzané 29280FRA2 aut.7 aut.Noah J. PlanavskyDepartment of Earth Sciences, University of CaliforniaRiverside, California 92521USA3 aut.5 aut.Ernesto PecoitsDepartment of Earth & Atmospheric Sciences, University of AlbertaEdmonton, Alberta T6G 2E3CAN1 aut.2 aut.4 aut.Timothy W. LyonsDepartment of Earth Sciences, University of CaliforniaRiverside, California 92521USA3 aut.5 aut.Stephen J. MojzsisDepartment of Geological Sciences, University of Colorado at BoulderBoulder, Colorado 80309USA6 aut.Olivier J. RouxelUniversité Europeene de Bretagne, Institut Universitaire Europeen de la MerPlouzané 29280FRA2 aut.7 aut.IFREMER, Centre de BrestPlouzané 29280FRA7 aut.Mark E. BarleySchool of Earth and Environment, University of Western AustraliaCrawley, Western Australia 6009AUS8 aut.Carlos RosiereInstituto de Geociências, Universidade Federal de Minas Gerais, Belo HorizonteMinas Gerais 31270-91BRA9 aut.Phillip W. FralickDepartment of Geology, Lakehead University, Thunder BayOntario P7B 5E1CAN10 aut.Lee R. KumpDepartment of Geosciences, The Pennsylvania State UniversityUniversity Park, Pennsylvania 16827USA11 aut.Andrey BekkerDepartment of Geological Sciences, University of ManitobaWinnipeg, Manitoba R3T 2N2CAN12 aut.12-00152442011PASCAL 12-0015244 INISTPascal:12-0015244000D690028-0836Nature : (Lond.)Nature : (London)ArcheanCr-53/Cr-52Precambrianacidityaluminumauthigenesisbacteriabiogenic effectschromiumdissolutioniron-rich compositionisotope fractionationisotopeslower Proterozoicmarine sedimentsmodelsoxidationoxidation-reduction conditionspaleoatmospherepyritesulfatestitaniumtrace metalsweatheringOxydationPyriteAction biogèneBactérieAciditéCondition oxydoréductionMétal traceSédiment marinChromeAltération météoriquePaléoatmosphèreIsotopeAuthigenèseComposition riche en ferPrécambrienFractionnement isotopiqueDissolutionSulfateModèleArchéenProtérozoïque infCr 53-Cr 52TitaneOxygénationDrainage acideAluminium
The enrichment of redox-sensitive trace metals in ancient marine sedimentary rocks has been used to determine the timing of the oxidation of the Earth's land surface1,2. Chromium (Cr) is among the emerging proxies for tracking the effects of atmospheric oxygenation on continental weathering; this is because its supply to the oceans is dominated by terrestrial processes that can be recorded in the Cr isotope composition of Precambrian iron formations3. However, the factors controlling past and present seawater Cr isotope composition are poorly understood. Here we provide an independent and complementary record of marine Cr supply, in the form of Cr concentrations and authigenic enrichment in iron-rich sedimentary rocks. Our data suggest that Cr was largely immobile on land until around 2.48 Gyr ago, but within the 160 Myr that followed-and synchronous with independent evidence for oxygenation associated with the Great Oxidation Event (see, for example, refs 4-6)-marked excursions in Cr content and Cr/Ti ratios indicate that Cr was solubilized at a scale unrivalled in history. As Cr isotope fractionations at that time were muted, Cr must have been mobilized predominantly in reduced, Cr(III), form. We demonstrate that only the oxidation of an abundant and previously stable crustal pyrite reservoir by aerobic-respiring, chemolithoautotrophic bacteria could have generated the degree of acidity required to solubilize Cr(m) from ultramafic source rocks and residual soils7. This profound shift in weathering regimes beginning at 2.48 Gyr ago constitutes the earliest known geochemical evidence for acidophilic aerobes and the resulting acid rock drainage, and accounts for independent evidence of an increased supply of dissolved sulphate8 and sulphide-hosted trace elements to the oceans around that time1,9. Our model adds to amassing evidence that the Archaean-Palaeoproterozoic boundary was marked by a substantial shift in terrestrial geochemistry and biology.
0028-0836NATUASNature : (Lond.)4787369Aerobic bacterial pyrite oxidation and acid rock drainage during the Great Oxidation EventKONHAUSER (Kurt O.)LALONDE (Stefan V.)PLANAVSKY (Noah J.)PECOITS (Ernesto)LYONS (Timothy W.)MOJZSIS (Stephen J.)ROUXEL (Olivier J.)BARLEY (Mark E.)ROSIERE (Carlos)FRALICK (Phillip W.)KUMP (Lee R.)BEKKER (Andrey)Department of Earth & Atmospheric Sciences, University of AlbertaEdmonton, Alberta T6G 2E3CAN1 aut.2 aut.4 aut.Université Europeene de Bretagne, Institut Universitaire Europeen de la MerPlouzané 29280FRA2 aut.7 aut.Department of Earth Sciences, University of CaliforniaRiverside, California 92521USA3 aut.5 aut.Department of Geological Sciences, University of Colorado at BoulderBoulder, Colorado 80309USA6 aut.IFREMER, Centre de BrestPlouzané 29280FRA7 aut.School of Earth and Environment, University of Western AustraliaCrawley, Western Australia 6009AUS8 aut.Instituto de Geociências, Universidade Federal de Minas Gerais, Belo HorizonteMinas Gerais 31270-91BRA9 aut.Department of Geology, Lakehead University, Thunder BayOntario P7B 5E1CAN10 aut.Department of Geosciences, The Pennsylvania State UniversityUniversity Park, Pennsylvania 16827USA11 aut.Department of Geological Sciences, University of ManitobaWinnipeg, Manitoba R3T 2N2CAN12 aut.369-3732011ENGINIST1423540005099923502200000© 2012 INIST-CNRS. All rights reserved.33 ref.12-0015244PCRANature : (London)GBRThe enrichment of redox-sensitive trace metals in ancient marine sedimentary rocks has been used to determine the timing of the oxidation of the Earth's land surface1,2. Chromium (Cr) is among the emerging proxies for tracking the effects of atmospheric oxygenation on continental weathering; this is because its supply to the oceans is dominated by terrestrial processes that can be recorded in the Cr isotope composition of Precambrian iron formations3. However, the factors controlling past and present seawater Cr isotope composition are poorly understood. Here we provide an independent and complementary record of marine Cr supply, in the form of Cr concentrations and authigenic enrichment in iron-rich sedimentary rocks. Our data suggest that Cr was largely immobile on land until around 2.48 Gyr ago, but within the 160 Myr that followed-and synchronous with independent evidence for oxygenation associated with the Great Oxidation Event (see, for example, refs 4-6)-marked excursions in Cr content and Cr/Ti ratios indicate that Cr was solubilized at a scale unrivalled in history. As Cr isotope fractionations at that time were muted, Cr must have been mobilized predominantly in reduced, Cr(III), form. We demonstrate that only the oxidation of an abundant and previously stable crustal pyrite reservoir by aerobic-respiring, chemolithoautotrophic bacteria could have generated the degree of acidity required to solubilize Cr(m) from ultramafic source rocks and residual soils7. This profound shift in weathering regimes beginning at 2.48 Gyr ago constitutes the earliest known geochemical evidence for acidophilic aerobes and the resulting acid rock drainage, and accounts for independent evidence of an increased supply of dissolved sulphate8 and sulphide-hosted trace elements to the oceans around that time1,9. Our model adds to amassing evidence that the Archaean-Palaeoproterozoic boundary was marked by a substantial shift in terrestrial geochemistry and biology.001E01A03001E01O04001E01C01220A03226B04220C01Oxydation01oxidation01Oxidación01PyriteNZ02pyriteNZ02PiritaNZ02Action biogène03biogenic effects03BactérieNY04bacteriaNY04Acidité05acidity05Condition oxydoréduction06oxidation-reduction conditions06Métal trace07trace metals07Sédiment marin08marine sediments08Sedimento marino08Chrome09chromium09Cromo09Altération météorique10weathering10Alteración meteórica10Paléoatmosphère11paleoatmosphere11Paleoatmósfera11Isotope12isotopes12Isótopo12Authigenèse13authigenesis13Autigénesis13Composition riche en fer14iron-rich composition14Composición rica en hierro14PrécambrienNX15PrecambrianNX15Fractionnement isotopique17isotope fractionation17Fraccionamiento isotópico17Dissolution19dissolution19Disolución19SulfateNZ20sulfatesNZ20SulfatoNZ20Modèle21models21Modelo21ArchéenNX22ArcheanNX22ArqueanoNX22Protérozoïque infNX23lower ProterozoicNX23Proterozoico infNX23Cr 53-Cr 5224Cr-53/Cr-5224Titane25titanium25Titanio25OxygénationINC52Drainage acideINC53Aluminium61aluminum61Aluminio61Sulfure ferNZiron sulfidesNZSulfuro hierroNZSulfureNZsulfidesNZSulfuroNZProcaryoteNYprokaryotesNYProtérozoïqueNXProterozoicNXProterozoicoNX002PSIPSIPASCAL 12-0015244 INISTAerobic bacterial pyrite oxidation and acid rock drainage during the Great Oxidation EventKONHAUSER (Kurt O.); LALONDE (Stefan V.); PLANAVSKY (Noah J.); PECOITS (Ernesto); LYONS (Timothy W.); MOJZSIS (Stephen J.); ROUXEL (Olivier J.); BARLEY (Mark E.); ROSIERE (Carlos); FRALICK (Phillip W.); KUMP (Lee R.); BEKKER (Andrey)Department of Earth & Atmospheric Sciences, University of Alberta/Edmonton, Alberta T6G 2E3/Canada (1 aut., 2 aut., 4 aut.); Université Europeene de Bretagne, Institut Universitaire Europeen de la Mer/Plouzané 29280/France (2 aut., 7 aut.); Department of Earth Sciences, University of California/Riverside, California 92521/Etats-Unis (3 aut., 5 aut.); Department of Geological Sciences, University of Colorado at Boulder/Boulder, Colorado 80309/Etats-Unis (6 aut.); IFREMER, Centre de Brest/Plouzané 29280/France (7 aut.); School of Earth and Environment, University of Western Australia/Crawley, Western Australia 6009/Australie (8 aut.); Instituto de Geociências, Universidade Federal de Minas Gerais, Belo Horizonte/Minas Gerais 31270-91/Brésil (9 aut.); Department of Geology, Lakehead University, Thunder Bay/Ontario P7B 5E1/Canada (10 aut.); Department of Geosciences, The Pennsylvania State University/University Park, Pennsylvania 16827/Etats-Unis (11 aut.); Department of Geological Sciences, University of Manitoba/Winnipeg, Manitoba R3T 2N2/Canada (12 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Nature : (London); ISSN 0028-0836; Coden NATUAS; Royaume-Uni; Da. 2011; Vol. 478; No. 7369; Pp. 369-373; Bibl. 33 ref.AnglaisThe enrichment of redox-sensitive trace metals in ancient marine sedimentary rocks has been used to determine the timing of the oxidation of the Earth's land surface1,2. Chromium (Cr) is among the emerging proxies for tracking the effects of atmospheric oxygenation on continental weathering; this is because its supply to the oceans is dominated by terrestrial processes that can be recorded in the Cr isotope composition of Precambrian iron formations3. However, the factors controlling past and present seawater Cr isotope composition are poorly understood. Here we provide an independent and complementary record of marine Cr supply, in the form of Cr concentrations and authigenic enrichment in iron-rich sedimentary rocks. Our data suggest that Cr was largely immobile on land until around 2.48 Gyr ago, but within the 160 Myr that followed-and synchronous with independent evidence for oxygenation associated with the Great Oxidation Event (see, for example, refs 4-6)-marked excursions in Cr content and Cr/Ti ratios indicate that Cr was solubilized at a scale unrivalled in history. As Cr isotope fractionations at that time were muted, Cr must have been mobilized predominantly in reduced, Cr(III), form. We demonstrate that only the oxidation of an abundant and previously stable crustal pyrite reservoir by aerobic-respiring, chemolithoautotrophic bacteria could have generated the degree of acidity required to solubilize Cr(m) from ultramafic source rocks and residual soils7. This profound shift in weathering regimes beginning at 2.48 Gyr ago constitutes the earliest known geochemical evidence for acidophilic aerobes and the resulting acid rock drainage, and accounts for independent evidence of an increased supply of dissolved sulphate8 and sulphide-hosted trace elements to the oceans around that time1,9. Our model adds to amassing evidence that the Archaean-Palaeoproterozoic boundary was marked by a substantial shift in terrestrial geochemistry and biology.001E01A03; 001E01O04; 001E01C01; 220A03; 226B04; 220C01Oxydation; Pyrite; Action biogène; Bactérie; Acidité; Condition oxydoréduction; Métal trace; Sédiment marin; Chrome; Altération météorique; Paléoatmosphère; Isotope; Authigenèse; Composition riche en fer; Précambrien; Fractionnement isotopique; Dissolution; Sulfate; Modèle; Archéen; Protérozoïque inf; Cr 53-Cr 52; Titane; Oxygénation; Drainage acide; AluminiumSulfure fer; Sulfure; Procaryote; Protérozoïqueoxidation; pyrite; biogenic effects; bacteria; acidity; oxidation-reduction conditions; trace metals; marine sediments; chromium; weathering; paleoatmosphere; isotopes; authigenesis; iron-rich composition; Precambrian; isotope fractionation; dissolution; sulfates; models; Archean; lower Proterozoic; Cr-53/Cr-52; titanium; aluminumiron sulfides; sulfides; prokaryotes; ProterozoicOxidación; Pirita; Sedimento marino; Cromo; Alteración meteórica; Paleoatmósfera; Isótopo; Autigénesis; Composición rica en hierro; Fraccionamiento isotópico; Disolución; Sulfato; Modelo; Arqueano; Proterozoico inf; Titanio; AluminioINIST-142.35400050999235022012-0015244 001B25 Clustering of Human Papillomavirus (HPV) Types in the Male Genital Tract: The HPV in Men (HIM) StudySalvatore VaccareliaInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.Martyn PlummerInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.Silvia FranceschiInternational Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.Patti GravittJohns Hopkins Bloomberg School of Public HealthBaltimore, MarylandUSA4 aut.Mary PapenfussH. Lee Moffitt Cancer Center and Research InstituteTampa, FloridaUSA5 aut.6 aut.9 aut.Danelle SmithH. Lee Moffitt Cancer Center and Research InstituteTampa, FloridaUSA5 aut.6 aut.9 aut.Luisa VillaLudwig Institute for Cancer ResearchSao PauloBRA7 aut.Eduardo Lazcano PonceInstituto Nacional de Salud PublicaCuernavacaMEX8 aut.Anna R. GiulianoH. Lee Moffitt Cancer Center and Research InstituteTampa, FloridaUSA5 aut.6 aut.9 aut.12-00156892011PASCAL 12-0015689 INISTPascal:12-0015689000D680022-1899J. infect. dis.The Journal of infectious diseasesHumanHuman papillomavirusInfectionPapillomavirus humainHommeInfection
Objective. To evaluate clustering patterns of prevalent infection with multiple human papillomavirus (HPV) types in 3677 men from the HPV in Men (HIM) study. Methods. HPV testing was performed in samples combined from the glans penis/coronal sulcus, the shaft, and the scrotum by Linear Array methodology. Linear Array uses a mixed probe to assess HPV52 positivity, which limits the assay's ability to determine HPV52 status in the presence of HPV33, 35, or 58. Logistic regression was used to model type-specific HPV positivity, adjusted for age, study area, lifetime number of sexual partners, and specific HPV type prevalence. Participant-level random effects were added to represent unobservable risk factors common to all HPV types. Results. The observed-to-expected ratio for infections with ≥ 3 types was 1.09 (95% credible interval, 1.04-1.14). For the majority of 2-type combinations, no evidence was found of a significant departure of the observed from the expected number. An apparent clustering of HPV52 with HPV35 or 58 was observed, because of limitation in the ability of Linear Array to define HPV52 positivity. Conclusions. Our study showed that, despite obvious anatomical differences, HPV coinfections do seem to occur at random in the male external genitalia as in the female cervix.
0022-1899JIDIAQJ. infect. dis.20410Clustering of Human Papillomavirus (HPV) Types in the Male Genital Tract: The HPV in Men (HIM) StudyVACCARELIA (Salvatore)PLUMMER (Martyn)FRANCESCHI (Silvia)GRAVITT (Patti)PAPENFUSS (Mary)SMITH (Danelle)VILLA (Luisa)PONCE (Eduardo Lazcano)GIULIANO (Anna R.)International Agency for Research on CancerLyonFRA1 aut.2 aut.3 aut.Johns Hopkins Bloomberg School of Public HealthBaltimore, MarylandUSA4 aut.H. Lee Moffitt Cancer Center and Research InstituteTampa, FloridaUSA5 aut.6 aut.9 aut.Ludwig Institute for Cancer ResearchSao PauloBRA7 aut.Instituto Nacional de Salud PublicaCuernavacaMEX8 aut.1500-15042011ENGINIST20523540005073469900500000© 2012 INIST-CNRS. All rights reserved.25 ref.12-0015689PAThe Journal of infectious diseasesGBRObjective. To evaluate clustering patterns of prevalent infection with multiple human papillomavirus (HPV) types in 3677 men from the HPV in Men (HIM) study. Methods. HPV testing was performed in samples combined from the glans penis/coronal sulcus, the shaft, and the scrotum by Linear Array methodology. Linear Array uses a mixed probe to assess HPV52 positivity, which limits the assay's ability to determine HPV52 status in the presence of HPV33, 35, or 58. Logistic regression was used to model type-specific HPV positivity, adjusted for age, study area, lifetime number of sexual partners, and specific HPV type prevalence. Participant-level random effects were added to represent unobservable risk factors common to all HPV types. Results. The observed-to-expected ratio for infections with ≥ 3 types was 1.09 (95% credible interval, 1.04-1.14). For the majority of 2-type combinations, no evidence was found of a significant departure of the observed from the expected number. An apparent clustering of HPV52 with HPV35 or 58 was observed, because of limitation in the ability of Linear Array to define HPV52 positivity. Conclusions. Our study showed that, despite obvious anatomical differences, HPV coinfections do seem to occur at random in the male external genitalia as in the female cervix.002A05C10002B05Papillomavirus humainNW01Human papillomavirusNW01Human papillomavirusNW01Homme02Human02Hombre02Infection05Infection05Infección05PapillomavirusNWPapillomavirusNWPapillomavirusNWPapovaviridaeNWPapovaviridaeNWPapovaviridaeNWVirusNWVirusNWVirusNW002OTOOTOPASCAL 12-0015689 INISTClustering of Human Papillomavirus (HPV) Types in the Male Genital Tract: The HPV in Men (HIM) StudyVACCARELIA (Salvatore); PLUMMER (Martyn); FRANCESCHI (Silvia); GRAVITT (Patti); PAPENFUSS (Mary); SMITH (Danelle); VILLA (Luisa); PONCE (Eduardo Lazcano); GIULIANO (Anna R.)International Agency for Research on Cancer/Lyon/France (1 aut., 2 aut., 3 aut.); Johns Hopkins Bloomberg School of Public Health/Baltimore, Maryland/Etats-Unis (4 aut.); H. Lee Moffitt Cancer Center and Research Institute/Tampa, Florida/Etats-Unis (5 aut., 6 aut., 9 aut.); Ludwig Institute for Cancer Research/Sao Paulo/Brésil (7 aut.); Instituto Nacional de Salud Publica/Cuernavaca/Mexique (8 aut.)
Publication en série; Niveau analytique
The Journal of infectious diseases; ISSN 0022-1899; Coden JIDIAQ; Royaume-Uni; Da. 2011; Vol. 204; No. 10; Pp. 1500-1504; Bibl. 25 ref.AnglaisObjective. To evaluate clustering patterns of prevalent infection with multiple human papillomavirus (HPV) types in 3677 men from the HPV in Men (HIM) study. Methods. HPV testing was performed in samples combined from the glans penis/coronal sulcus, the shaft, and the scrotum by Linear Array methodology. Linear Array uses a mixed probe to assess HPV52 positivity, which limits the assay's ability to determine HPV52 status in the presence of HPV33, 35, or 58. Logistic regression was used to model type-specific HPV positivity, adjusted for age, study area, lifetime number of sexual partners, and specific HPV type prevalence. Participant-level random effects were added to represent unobservable risk factors common to all HPV types. Results. The observed-to-expected ratio for infections with ≥ 3 types was 1.09 (95% credible interval, 1.04-1.14). For the majority of 2-type combinations, no evidence was found of a significant departure of the observed from the expected number. An apparent clustering of HPV52 with HPV35 or 58 was observed, because of limitation in the ability of Linear Array to define HPV52 positivity. Conclusions. Our study showed that, despite obvious anatomical differences, HPV coinfections do seem to occur at random in the male external genitalia as in the female cervix.002A05C10; 002B05Papillomavirus humain; Homme; InfectionPapillomavirus; Papovaviridae; VirusHuman papillomavirus; Human; InfectionPapillomavirus; Papovaviridae; VirusHuman papillomavirus; Hombre; InfecciónINIST-2052.35400050734699005012-0015689 001B26 A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultationB. SicardyLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.Universlté Pierre et Marie Curie, 4, Place Jussieu75252 ParisFRA1 aut.Institut Universitaire de France, 103, Boulevard Saint Michel75005 ParisFRA1 aut.J. L. OrtizInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.M. AssafinObservatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.E. JehinInstitut d'Astrophysique de l'Université de Liege, Allée du 6 Aout 174000 LiegeBEL4 aut.28 aut.29 aut.A. MaurySan Pedro de Atacama Celestial Explorations, Casilla 21, San Pedro de AtacamaCHL5 aut.32 aut.E. LellouchLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.R. Gil HuttonComplejo Astronómico El Leoncito (CASLEO) and San Juan National University, Avenida Espana 1512 sur, J5402DSPSan JuanARG7 aut.F. Braga-RibasLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.F. ColasIMCCE-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Lille 1, 77 Avenue Denfert-Rochereau75014 ParisFRA9 aut.10 aut.27 aut.D. HestrofferIMCCE-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Lille 1, 77 Avenue Denfert-Rochereau75014 ParisFRA9 aut.10 aut.27 aut.J. LecacheuxLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.F. RoquesLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.P. Santos-SanzLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.T. WidemannLESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.N. MoralesInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.R. DuffardInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.A. ThirouinInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.A. J. Castro-TiradoInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.M. JelinekInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.P. KubanekInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.A. SotaInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.R. Sanchez-RamirezInstituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.A. H. AndreiObservatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.J. I. B. CamargoObservatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.D. N. Da Silva NetoObservatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.Centro Universitario Estadual da Zona Oeste, Avenida Manual Caldeira de Alvarenga 1203CEP, 23.070-200 Rio de Janeiro, RJBRA25 aut.A. Jr Ramos GomesObservatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.R. Vieira MartinsObservatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.IMCCE-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Lille 1, 77 Avenue Denfert-Rochereau75014 ParisFRA9 aut.10 aut.27 aut.M. GillonInstitut d'Astrophysique de l'Université de Liege, Allée du 6 Aout 174000 LiegeBEL4 aut.28 aut.29 aut.J. ManfroidInstitut d'Astrophysique de l'Université de Liege, Allée du 6 Aout 174000 LiegeBEL4 aut.28 aut.29 aut.G. P. TozziINAF, Osservatorio Astrofisico di Arcetri, Largo E. Fermi 550125 FirenzeITA30 aut.C. HarlingtenCaisey Harlingten Observatory, The Grange, Scarrow Beck Road, ErpinghamNorfolk NR11 7QXGBR31 aut.S. SaraviaSan Pedro de Atacama Celestial Explorations, Casilla 21, San Pedro de AtacamaCHL5 aut.32 aut.R. BehrendObservatoire de Genève1290 SauvernyCHE33 aut.S. MottolaDLR - German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU34 aut.E. Garcia MelendoFundació Privada Observatori Esteve Duran08553 SevaESP35 aut.Institut de Ciències de l'Espai (CSIC-IEEC), Facultat de Ciències, Torre C508193 BellaterraESP35 aut.V. PerisObservatori Astronomic, Universitat de València, Calle Catedràtic Jose Beltrán 246980 PaternaESP36 aut.37 aut.J. FabregatObservatori Astronomic, Universitat de València, Calle Catedràtic Jose Beltrán 246980 PaternaESP36 aut.37 aut.J. M. MadiedoUniversidad de Huelva, Facultad de Ciencias Experimentales, Avenida de las Fuerzas Armadas S/N21071 HuelvaESP38 aut.L. CuestaCentro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 428850 Torrejón de Ardoz, MadridESP39 aut.40 aut.41 aut.M. T. EibeCentro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 428850 Torrejón de Ardoz, MadridESP39 aut.40 aut.41 aut.A. UllanCentro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 428850 Torrejón de Ardoz, MadridESP39 aut.40 aut.41 aut.F. OrganeroObservatorio astronómico de La Hita45840 La Puebla de Almoradiel ESP42 aut.S. PastorObservatorio de la Murta30153 MurciaESP43 aut.44 aut.J. A. De Los ReyesObservatorio de la Murta30153 MurciaESP43 aut.44 aut.S. PedrazCalar Alto Observatory, Centro Astronómico Hispano Alemán, Calle Jesús Durbán Remón, 204004 AlmeriaESP45 aut.A. CastroSociedad Malaguena de Astronomia, Centro Cultural Jose Maria Gutierrez Romero, Calle Republica Argentina 929016 MalagaESP46 aut.I. De La CuevaAstroimagen, Abad y Lasierra 58Bis07800 IbizaESP47 aut.G. MulerI. A. SteeleM. CebrianP. Montanes-RodriguezA. OscozD. WeaverC. JacquesW. J. B. CorradiF. P. SantosW. ReisA. MiloneM. EmilioL. Gutierrez12-00169102011PASCAL 12-0016910 INISTPascal:12-0016910000D670028-0836Nature : (Lond.)Nature : (London)AlbedoDwarf planetEccentricityMethaneOccultationsPlanetary atmospheresPlanetary surfacesSpherical shapeSunAtmosphère planétaireAlbédoOccultationExcentricitéSoleilForme sphériqueMéthaneSurface planétairePlanète naine
The dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to that of Pluto1. It resides at present at 95.7 astronomical units (1 AU is the Earth-Sun distance) from Earth, near its aphelion and more than three times farther than Pluto. Owing to this great distance, measuring its size or detecting a putative atmosphere is difficult. Here we report the observation of a multi-chord stellar occultation by Eris on 6 November 2010 UT. The event is consistent with a spherical shape for Eris, with radius 1,163 ± 6 kilometres, density 2.52 ± 0.05 grams per cm3 and a high visible geometric albedo, pV=0.96+0.09-0.04. No nitrogen, argon or methane atmospheres are detected with surface pressure larger than ˜1 nanobar, about 10,000 times more tenuous than Pluto's present atmosphere2-1. As Pluto's radius is estimated3-8 to be between 1,150 and 1,200 kilometres, Eris appears as a Pluto twin, with a bright surface possibly caused by a collapsed atmosphere, owing to its cold environment. We anticipate that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun.
0028-0836NATUASNature : (Lond.)4787370A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultationSICARDY (B.)ORTIZ (J. L.)ASSAFIN (M.)JEHIN (E.)MAURY (A.)LELLOUCH (E.)GIL HUTTON (R.)BRAGA-RIBAS (F.)COLAS (F.)HESTROFFER (D.)LECACHEUX (J.)ROQUES (F.)SANTOS-SANZ (P.)WIDEMANN (T.)MORALES (N.)DUFFARD (R.)THIROUIN (A.)CASTRO-TIRADO (A. J.)JELINEK (M.)KUBANEK (P.)SOTA (A.)SANCHEZ-RAMIREZ (R.)ANDREI (A. H.)CAMARGO (J. I. B.)SILVA NETO (D. N. Da)RAMOS GOMES (A. JR)VIEIRA MARTINS (R.)GILLON (M.)MANFROID (J.)TOZZI (G. P.)HARLINGTEN (C.)SARAVIA (S.)BEHREND (R.)MOTTOLA (S.)GARCIA MELENDO (E.)PERIS (V.)FABREGAT (J.)MADIEDO (J. M.)CUESTA (L.)EIBE (M. T.)ULLAN (A.)ORGANERO (F.)PASTOR (S.)DE LOS REYES (J. A.)PEDRAZ (S.)CASTRO (A.)DE LA CUEVA (I.)MULER (G.)STEELE (I. A.)CEBRIAN (M.)MONTANES-RODRIGUEZ (P.)OSCOZ (A.)WEAVER (D.)JACQUES (C.)CORRADI (W. J. B.)SANTOS (F. P.)REIS (W.)MILONE (A.)EMILIO (M.)GUTIERREZ (L.)LESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot92195 MeudonFRA1 aut.6 aut.8 aut.11 aut.12 aut.13 aut.14 aut.Universlté Pierre et Marie Curie, 4, Place Jussieu75252 ParisFRA1 aut.Institut Universitaire de France, 103, Boulevard Saint Michel75005 ParisFRA1 aut.Instituto de Astrofisica de Andalucía, CSIC, Apartado 300418080 GranadaESP2 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.Observatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJBRA3 aut.23 aut.24 aut.26 aut.27 aut.Institut d'Astrophysique de l'Université de Liege, Allée du 6 Aout 174000 LiegeBEL4 aut.28 aut.29 aut.San Pedro de Atacama Celestial Explorations, Casilla 21, San Pedro de AtacamaCHL5 aut.32 aut.Complejo Astronómico El Leoncito (CASLEO) and San Juan National University, Avenida Espana 1512 sur, J5402DSPSan JuanARG7 aut.Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de JaneiroRJBRA8 aut.23 aut.24 aut.25 aut.27 aut.IMCCE-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Lille 1, 77 Avenue Denfert-Rochereau75014 ParisFRA9 aut.10 aut.27 aut.Centro Universitario Estadual da Zona Oeste, Avenida Manual Caldeira de Alvarenga 1203CEP, 23.070-200 Rio de Janeiro, RJBRA25 aut.INAF, Osservatorio Astrofisico di Arcetri, Largo E. Fermi 550125 FirenzeITA30 aut.Caisey Harlingten Observatory, The Grange, Scarrow Beck Road, ErpinghamNorfolk NR11 7QXGBR31 aut.Observatoire de Genève1290 SauvernyCHE33 aut.DLR - German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU34 aut.Fundació Privada Observatori Esteve Duran08553 SevaESP35 aut.Institut de Ciències de l'Espai (CSIC-IEEC), Facultat de Ciències, Torre C508193 BellaterraESP35 aut.Observatori Astronomic, Universitat de València, Calle Catedràtic Jose Beltrán 246980 PaternaESP36 aut.37 aut.Universidad de Huelva, Facultad de Ciencias Experimentales, Avenida de las Fuerzas Armadas S/N21071 HuelvaESP38 aut.Centro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 428850 Torrejón de Ardoz, MadridESP39 aut.40 aut.41 aut.Observatorio astronómico de La Hita45840 La Puebla de Almoradiel ESP42 aut.Observatorio de la Murta30153 MurciaESP43 aut.44 aut.Calar Alto Observatory, Centro Astronómico Hispano Alemán, Calle Jesús Durbán Remón, 204004 AlmeriaESP45 aut.Sociedad Malaguena de Astronomia, Centro Cultural Jose Maria Gutierrez Romero, Calle Republica Argentina 929016 MalagaESP46 aut.Astroimagen, Abad y Lasierra 58Bis07800 IbizaESP47 aut.493-4962011ENGINIST1423540005078293801900000© 2012 INIST-CNRS. All rights reserved.26 ref.12-0016910PCRANature : (London)GBRThe dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to that of Pluto1. It resides at present at 95.7 astronomical units (1 AU is the Earth-Sun distance) from Earth, near its aphelion and more than three times farther than Pluto. Owing to this great distance, measuring its size or detecting a putative atmosphere is difficult. Here we report the observation of a multi-chord stellar occultation by Eris on 6 November 2010 UT. The event is consistent with a spherical shape for Eris, with radius 1,163 ± 6 kilometres, density 2.52 ± 0.05 grams per cm3 and a high visible geometric albedo, pV=0.96+0.09-0.04. No nitrogen, argon or methane atmospheres are detected with surface pressure larger than ˜1 nanobar, about 10,000 times more tenuous than Pluto's present atmosphere2-1. As Pluto's radius is estimated3-8 to be between 1,150 and 1,200 kilometres, Eris appears as a Pluto twin, with a bright surface possibly caused by a collapsed atmosphere, owing to its cold environment. We anticipate that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun.001E03B30YAtmosphère planétaire26Planetary atmospheres26Albédo27Albedo27Occultation28Occultations28Excentricité29Eccentricity29Soleil30Sun30Forme sphérique31Spherical shape31Forma esférica31MéthaneNK32MethaneNK32Surface planétaire33Planetary surfaces33Planète naineCD96Dwarf planetCD96Planeta enanaCD96002PASCAL 12-0016910 INISTA Pluto-like radius and a high albedo for the dwarf planet Eris from an occultationSICARDY (B.); ORTIZ (J. L.); ASSAFIN (M.); JEHIN (E.); MAURY (A.); LELLOUCH (E.); GIL HUTTON (R.); BRAGA-RIBAS (F.); COLAS (F.); HESTROFFER (D.); LECACHEUX (J.); ROQUES (F.); SANTOS-SANZ (P.); WIDEMANN (T.); MORALES (N.); DUFFARD (R.); THIROUIN (A.); CASTRO-TIRADO (A. J.); JELINEK (M.); KUBANEK (P.); SOTA (A.); SANCHEZ-RAMIREZ (R.); ANDREI (A. H.); CAMARGO (J. I. B.); SILVA NETO (D. N. Da); RAMOS GOMES (A. JR); VIEIRA MARTINS (R.); GILLON (M.); MANFROID (J.); TOZZI (G. P.); HARLINGTEN (C.); SARAVIA (S.); BEHREND (R.); MOTTOLA (S.); GARCIA MELENDO (E.); PERIS (V.); FABREGAT (J.); MADIEDO (J. M.); CUESTA (L.); EIBE (M. T.); ULLAN (A.); ORGANERO (F.); PASTOR (S.); DE LOS REYES (J. A.); PEDRAZ (S.); CASTRO (A.); DE LA CUEVA (I.); MULER (G.); STEELE (I. A.); CEBRIAN (M.); MONTANES-RODRIGUEZ (P.); OSCOZ (A.); WEAVER (D.); JACQUES (C.); CORRADI (W. J. B.); SANTOS (F. P.); REIS (W.); MILONE (A.); EMILIO (M.); GUTIERREZ (L.)LESIA-Observatoire de Paris, CNRS, Universite Pierre et Marie Curie, Universite Paris-Diderot, 11, Rue Marcelin Berthelot/92195 Meudon/France (1 aut., 6 aut., 8 aut., 11 aut., 12 aut., 13 aut., 14 aut.); Universlté Pierre et Marie Curie, 4, Place Jussieu/75252 Paris/France (1 aut.); Institut Universitaire de France, 103, Boulevard Saint Michel/75005 Paris/France (1 aut.); Instituto de Astrofisica de Andalucía, CSIC, Apartado 3004/18080 Granada/Espagne (2 aut., 15 aut., 16 aut., 17 aut., 18 aut., 19 aut., 20 aut., 21 aut., 22 aut.); Observatório do Valongo/UFRJ, Ladeira Pedro Antonio 43, CEP 20.080-090 Rio de Janeiro, RJ/Brésil (3 aut., 23 aut., 24 aut., 26 aut., 27 aut.); Institut d'Astrophysique de l'Université de Liege, Allée du 6 Aout 17/4000 Liege/Belgique (4 aut., 28 aut., 29 aut.); San Pedro de Atacama Celestial Explorations, Casilla 21, San Pedro de Atacama/Chili (5 aut., 32 aut.); Complejo Astronómico El Leoncito (CASLEO) and San Juan National University, Avenida Espana 1512 sur, J5402DSP/San Juan/Argentine (7 aut.); Observatório Nacional/MCT, Rua General José Cristino 77, CEP 20921-400 Rio de Janeiro/RJ/Brésil (8 aut., 23 aut., 24 aut., 25 aut., 27 aut.); IMCCE-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Lille 1, 77 Avenue Denfert-Rochereau/75014 Paris/France (9 aut., 10 aut., 27 aut.); Centro Universitario Estadual da Zona Oeste, Avenida Manual Caldeira de Alvarenga 1203/CEP, 23.070-200 Rio de Janeiro, RJ/Brésil (25 aut.); INAF, Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5/50125 Firenze/Italie (30 aut.); Caisey Harlingten Observatory, The Grange, Scarrow Beck Road, Erpingham/Norfolk NR11 7QX/Royaume-Uni (31 aut.); Observatoire de Genève/1290 Sauverny/Suisse (33 aut.); DLR - German Aerospace Center, Rutherfordstrasse 2/12489 Berlin/Allemagne (34 aut.); Fundació Privada Observatori Esteve Duran/08553 Seva/Espagne (35 aut.); Institut de Ciències de l'Espai (CSIC-IEEC), Facultat de Ciències, Torre C5/08193 Bellaterra/Espagne (35 aut.); Observatori Astronomic, Universitat de València, Calle Catedràtic Jose Beltrán 2/46980 Paterna/Espagne (36 aut., 37 aut.); Universidad de Huelva, Facultad de Ciencias Experimentales, Avenida de las Fuerzas Armadas S/N/21071 Huelva/Espagne (38 aut.); Centro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 4/28850 Torrejón de Ardoz, Madrid/Espagne (39 aut., 40 aut., 41 aut.); Observatorio astronómico de La Hita/45840 La Puebla de Almoradiel /Espagne (42 aut.); Observatorio de la Murta/30153 Murcia/Espagne (43 aut., 44 aut.); Calar Alto Observatory, Centro Astronómico Hispano Alemán, Calle Jesús Durbán Remón, 2/04004 Almeria/Espagne (45 aut.); Sociedad Malaguena de Astronomia, Centro Cultural Jose Maria Gutierrez Romero, Calle Republica Argentina 9/29016 Malaga/Espagne (46 aut.); Astroimagen, Abad y Lasierra 58Bis/07800 Ibiza/Espagne (47 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Nature : (London); ISSN 0028-0836; Coden NATUAS; Royaume-Uni; Da. 2011; Vol. 478; No. 7370; Pp. 493-496; Bibl. 26 ref.AnglaisThe dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to that of Pluto1. It resides at present at 95.7 astronomical units (1 AU is the Earth-Sun distance) from Earth, near its aphelion and more than three times farther than Pluto. Owing to this great distance, measuring its size or detecting a putative atmosphere is difficult. Here we report the observation of a multi-chord stellar occultation by Eris on 6 November 2010 UT. The event is consistent with a spherical shape for Eris, with radius 1,163 ± 6 kilometres, density 2.52 ± 0.05 grams per cm3 and a high visible geometric albedo, pV=0.96+0.09-0.04. No nitrogen, argon or methane atmospheres are detected with surface pressure larger than ˜1 nanobar, about 10,000 times more tenuous than Pluto's present atmosphere2-1. As Pluto's radius is estimated3-8 to be between 1,150 and 1,200 kilometres, Eris appears as a Pluto twin, with a bright surface possibly caused by a collapsed atmosphere, owing to its cold environment. We anticipate that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun.001E03B30YAtmosphère planétaire; Albédo; Occultation; Excentricité; Soleil; Forme sphérique; Méthane; Surface planétaire; Planète nainePlanetary atmospheres; Albedo; Occultations; Eccentricity; Sun; Spherical shape; Methane; Planetary surfaces; Dwarf planetForma esférica; Planeta enanaINIST-142.35400050782938019012-0016910 001B27 Convex framework for the design of dynamic anti-windup for state-delayed systemsF. A. BenderUFRGS - Department of Electrical Engineering, Av. Osvaldo Aranha 103Porto Alegre 90035-190BRA1 aut.2 aut.UCS - Centro de Ciências Exatas e TecnologiaCaxias do SulBRA1 aut.J. M. Jr Gomes Da SilvaUFRGS - Department of Electrical Engineering, Av. Osvaldo Aranha 103Porto Alegre 90035-190BRA1 aut.2 aut.S. TarbouriechCNRS; LAAS, 7 avenue du Colonel Roche31077FRA3 aut.Université de Toulouse, UPS, INSA, INP, ISAE, UT1, UTM, LAAS31077FRA3 aut.12-00176232011PASCAL 12-0017623 INISTPascal:12-0017623000D661751-8644IET control theory & applications : (Print)Anti windupAsymptotic approximationAttractionClosed feedbackCongruenceDelay systemDomain of attractionGain marginInput to state stabilityL2 approximationLinear matrix inequalityLyapunov functionSaturationStability regiondynamic controlSystème à retardCommande dynamiqueStabilité entrée étatCommande boucle ferméeDomaine stabilitéAnti emballementSaturationMarge gainFonction LyapunovCongruenceInégalité matricielle linéaireApproximation asymptotiqueApproximation L2AttractionDomaine attraction
This work addresses the design of dynamic anti-windup compensators for state-delayed systems subject to saturating actuators. Based on the use of a Lyapunov-Krasovskii approach, a generalised sector condition and some congruence transformations, an unified linear matrix inequality-based framework for the synthesis of both rational and non-rational dynamic anti-windup compensators is proposed. Theoretical results to ensure the asymptotic and the input-to-state stabilities of the closed-loop system are presented both in local as well as global contexts. The proposed conditions are cast in convex optimisation problems to compute anti-windup compensators aiming at maximising the bound on the admissible L2 disturbances, maximising the L2-gain from the disturbance to the regulated output or maximising the region of attraction of the closed-loop system. Numerical examples illustrate the application of the methodology.
1751-8644512Convex framework for the design of dynamic anti-windup for state-delayed systemsBENDER (F. A.)GOMES DA SILVA (J. M. JR)TARBOURIECH (S.)UFRGS - Department of Electrical Engineering, Av. Osvaldo Aranha 103Porto Alegre 90035-190BRA1 aut.2 aut.CNRS; LAAS, 7 avenue du Colonel Roche31077FRA3 aut.UCS - Centro de Ciências Exatas e TecnologiaCaxias do SulBRA1 aut.Université de Toulouse, UPS, INSA, INP, ISAE, UT1, UTM, LAAS31077FRA3 aut.1388-13962011ENGINIST7573D3540005085923100400000© 2012 INIST-CNRS. All rights reserved.24 ref.12-0017623PAIET control theory & applications : (Print)GBRThis work addresses the design of dynamic anti-windup compensators for state-delayed systems subject to saturating actuators. Based on the use of a Lyapunov-Krasovskii approach, a generalised sector condition and some congruence transformations, an unified linear matrix inequality-based framework for the synthesis of both rational and non-rational dynamic anti-windup compensators is proposed. Theoretical results to ensure the asymptotic and the input-to-state stabilities of the closed-loop system are presented both in local as well as global contexts. The proposed conditions are cast in convex optimisation problems to compute anti-windup compensators aiming at maximising the bound on the admissible L2 disturbances, maximising the L2-gain from the disturbance to the regulated output or maximising the region of attraction of the closed-loop system. Numerical examples illustrate the application of the methodology.001D02D06Système à retard06Delay system06Sistema con retardo06Commande dynamique07dynamic control07Comando dinámico07Stabilité entrée état08Input to state stability08Stabilidad entrada estado08Commande boucle fermée09Closed feedback09Bucle realimentación cerrada09Domaine stabilité10Stability region10Dominio estabilidad10Anti emballement18Anti windup18Antiembalamiento18Saturation19Saturation19Saturación19Marge gain20Gain margin20Margen ganancia20Fonction Lyapunov28Lyapunov function28Función Lyapunov28Congruence29Congruence29Congruencia29Inégalité matricielle linéaire30Linear matrix inequality30Desigualdad matricial lineal30Approximation asymptotique31Asymptotic approximation31Aproximación asintótica31Approximation L232L2 approximation32Aproximación L232Attraction33Attraction33Atracción33Domaine attraction34Domain of attraction34Dominio atracción34002OTOOTOPASCAL 12-0017623 INISTConvex framework for the design of dynamic anti-windup for state-delayed systemsBENDER (F. A.); GOMES DA SILVA (J. M. JR); TARBOURIECH (S.)UFRGS - Department of Electrical Engineering, Av. Osvaldo Aranha 103/Porto Alegre 90035-190/Brésil (1 aut., 2 aut.); CNRS; LAAS, 7 avenue du Colonel Roche/31077/France (3 aut.); UCS - Centro de Ciências Exatas e Tecnologia/Caxias do Sul/Brésil (1 aut.); Université de Toulouse, UPS, INSA, INP, ISAE, UT1, UTM, LAAS/31077/France (3 aut.)
Publication en série; Niveau analytique
IET control theory & applications : (Print); ISSN 1751-8644; Royaume-Uni; Da. 2011; Vol. 5; No. 12; Pp. 1388-1396; Bibl. 24 ref.AnglaisThis work addresses the design of dynamic anti-windup compensators for state-delayed systems subject to saturating actuators. Based on the use of a Lyapunov-Krasovskii approach, a generalised sector condition and some congruence transformations, an unified linear matrix inequality-based framework for the synthesis of both rational and non-rational dynamic anti-windup compensators is proposed. Theoretical results to ensure the asymptotic and the input-to-state stabilities of the closed-loop system are presented both in local as well as global contexts. The proposed conditions are cast in convex optimisation problems to compute anti-windup compensators aiming at maximising the bound on the admissible L2 disturbances, maximising the L2-gain from the disturbance to the regulated output or maximising the region of attraction of the closed-loop system. Numerical examples illustrate the application of the methodology.001D02D06Système à retard; Commande dynamique; Stabilité entrée état; Commande boucle fermée; Domaine stabilité; Anti emballement; Saturation; Marge gain; Fonction Lyapunov; Congruence; Inégalité matricielle linéaire; Approximation asymptotique; Approximation L2; Attraction; Domaine attractionDelay system; dynamic control; Input to state stability; Closed feedback; Stability region; Anti windup; Saturation; Gain margin; Lyapunov function; Congruence; Linear matrix inequality; Asymptotic approximation; L2 approximation; Attraction; Domain of attractionSistema con retardo; Comando dinámico; Stabilidad entrada estado; Bucle realimentación cerrada; Dominio estabilidad; Antiembalamiento; Saturación; Margen ganancia; Función Lyapunov; Congruencia; Desigualdad matricial lineal; Aproximación asintótica; Aproximación L2; Atracción; Dominio atracciónINIST-7573D.35400050859231004012-0017623 001B28 First stars XV. Third-peak r-process element and actinide abundances in the uranium-rich star CS31082-001B. BarbuyUniversidade de São Paulo, IAG, Rua do Matão 1226, Cidade UniversitáriaSão Paulo 05508-900BRA1 aut.9 aut.M. SpiteGEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.V. HillUniversite de Sophia-Antipolis, Observatoire de la Cote d'Azur, CNRS UMR 6202, BP 422906304 NiceFRA3 aut.F. PrimasEuropean Southern Observatory, Karl Schwarzschild Strasse 285748 Garching bei MunchenDEU4 aut.B. PlezLUPM, CNRS, UMR 5299, Université de Montpellier II34095 MontpellierFRA5 aut.R. CayrelGEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.F. SpiteGEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.S. WanajoTechnische Universitat Munchen, Excellence Cluster Universe, Boltzmannstr. 285748 GarchingDEU8 aut.Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 185748 GarchingDEU8 aut.C. Jr Siqueira MelloUniversidade de São Paulo, IAG, Rua do Matão 1226, Cidade UniversitáriaSão Paulo 05508-900BRA1 aut.9 aut.J. AndersenThe Niels Bohr Institute, Juliane Maries Vej 302100 CopenhagenDNK10 aut.11 aut.Nordic Optical Telescope, Apartado 47438700 Santa Cruz de La PalmaESP10 aut.B. NordströmThe Niels Bohr Institute, Juliane Maries Vej 302100 CopenhagenDNK10 aut.11 aut.T. C. BeersMichigan State University, Department of Physics & Astronomy, and JINA: Joinst Institute for Nuclear PhysicsEast Lansing, MI 48824USA12 aut.P. BonifacioGEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.P. FrancoisGEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.P. MolaroINAF - Osservatorio Astronomico di Trieste, via Tiepolo 1134143 TriesteITA15 aut.12-00178362011PASCAL 12-0017836 INISTPascal:12-0017836000D650004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AgeAtmosphere modelChemical enrichmentChemical evolutionConsistencyElement abundanceGalaxiesGalaxy haloGiant starsHeavy elementMetal-poor starsNeutron captureOptical spectrumPopulation IIProduction rateSpectroscopyStellar abundanceUltraviolet spectrar processProcessus rAbondance élémentEtoile pauvre en métalElément lourdCapture neutronGalaxiesEnrichissement chimiqueEtoile géanteSpectre optiqueSpectrométrieSpectre UVModèle atmosphèreTaux productionConsistanceAgeEvolution chimiqueAbondance stellaireHalo galaxiesPopulation type II
Context. A small fraction of extremely metal-poor (EMP) stars exhibit moderate to extreme excesses of heavy neutron-capture elements produced in the r-process. The production site(s) of these elements in the early Galaxy remain(s) unclear, as is the reason for their occasional enhancement in the otherwise regular pattern of abundances of elements up to the iron peak. The detailed abundance pattern of the heaviest elements in EMP stars provides insight into their origin and role in the chemical enrichment of the early Galaxy and in radioactive nucleochronology. Aims. The EMP giant star CS 31082-001 ([Fe/H] ˜ -2.9) exhibits an extreme enhancement of neutron-capture elements ([r/Fe] ˜ +1.7) with U and Th enhanced by a further ˜+0.7 dex, and a minimum of blending by molecular lines such as CH or CN. A rich inventory of r-process element abundances was established previously from optical spectra. Here we aim to supplement these data with abundances from near-UV spectroscopy of the third-peak neutron-capture elements, which are crucial for understanding the synthesis of the heaviest elements. Methods. Near-UV spectra from HST/STIS were analysed with LTE model atmospheres and spectrum synthesis calculations to derive new abundances of Os, Ir, Pt, Au, Bi and Pb in CS 31082-001. Results. Together with earlier data, the resulting abundance pattern for the r-process elements provides improved constraints on the nature of the r-process. The observed U and Th abundances and the initial production ratio place CS 31082-001 as one of the oldest stars in the Galaxy, consistent with its extreme metal deficiency. Comparison with the heaviest stable reference elements and with the daughter nuclides Pb and Bi provides a consistency check on this age determination. Finally, the existence of such r-element rich stars indicate that the early chemical evolution of the Galaxy was localised and inhomogeneous.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)534p. 1First stars XV. Third-peak r-process element and actinide abundances in the uranium-rich star CS31082-001BARBUY (B.)SPITE (M.)HILL (V.)PRIMAS (F.)PLEZ (B.)CAYREL (R.)SPITE (F.)WANAJO (S.)SIQUEIRA MELLO (C. JR)ANDERSEN (J.)NORDSTRÖM (B.)BEERS (T. C.)BONIFACIO (P.)FRANCOIS (P.)MOLARO (P.)Universidade de São Paulo, IAG, Rua do Matão 1226, Cidade UniversitáriaSão Paulo 05508-900BRA1 aut.9 aut.GEPI, Observatoire de Paris, CNRS, UMR 811192195 MeudonFRA2 aut.6 aut.7 aut.13 aut.14 aut.Universite de Sophia-Antipolis, Observatoire de la Cote d'Azur, CNRS UMR 6202, BP 422906304 NiceFRA3 aut.European Southern Observatory, Karl Schwarzschild Strasse 285748 Garching bei MunchenDEU4 aut.LUPM, CNRS, UMR 5299, Université de Montpellier II34095 MontpellierFRA5 aut.Technische Universitat Munchen, Excellence Cluster Universe, Boltzmannstr. 285748 GarchingDEU8 aut.Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 185748 GarchingDEU8 aut.The Niels Bohr Institute, Juliane Maries Vej 302100 CopenhagenDNK10 aut.11 aut.Nordic Optical Telescope, Apartado 47438700 Santa Cruz de La PalmaESP10 aut.Michigan State University, Department of Physics & Astronomy, and JINA: Joinst Institute for Nuclear PhysicsEast Lansing, MI 48824USA12 aut.INAF - Osservatorio Astronomico di Trieste, via Tiepolo 1134143 TriesteITA15 aut.A60.1-A60.122011ENGINIST141763540005056624005900000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0017836PAAstronomy and astrophysics : (Berlin. Print)FRAContext. A small fraction of extremely metal-poor (EMP) stars exhibit moderate to extreme excesses of heavy neutron-capture elements produced in the r-process. The production site(s) of these elements in the early Galaxy remain(s) unclear, as is the reason for their occasional enhancement in the otherwise regular pattern of abundances of elements up to the iron peak. The detailed abundance pattern of the heaviest elements in EMP stars provides insight into their origin and role in the chemical enrichment of the early Galaxy and in radioactive nucleochronology. Aims. The EMP giant star CS 31082-001 ([Fe/H] ˜ -2.9) exhibits an extreme enhancement of neutron-capture elements ([r/Fe] ˜ +1.7) with U and Th enhanced by a further ˜+0.7 dex, and a minimum of blending by molecular lines such as CH or CN. A rich inventory of r-process element abundances was established previously from optical spectra. Here we aim to supplement these data with abundances from near-UV spectroscopy of the third-peak neutron-capture elements, which are crucial for understanding the synthesis of the heaviest elements. Methods. Near-UV spectra from HST/STIS were analysed with LTE model atmospheres and spectrum synthesis calculations to derive new abundances of Os, Ir, Pt, Au, Bi and Pb in CS 31082-001. Results. Together with earlier data, the resulting abundance pattern for the r-process elements provides improved constraints on the nature of the r-process. The observed U and Th abundances and the initial production ratio place CS 31082-001 as one of the oldest stars in the Galaxy, consistent with its extreme metal deficiency. Comparison with the heaviest stable reference elements and with the daughter nuclides Pb and Bi provides a consistency check on this age determination. Finally, the existence of such r-element rich stars indicate that the early chemical evolution of the Galaxy was localised and inhomogeneous.001E03Processus r26r process26Abondance élément27Element abundance27Etoile pauvre en métal28Metal-poor stars28Elément lourd29Heavy element29Elemento pesado29Capture neutron30Neutron capture30Captura neutrón30Galaxies31Galaxies31Enrichissement chimique32Chemical enrichment32Enriquecimiento químico32Etoile géante33Giant stars33Spectre optique34Optical spectrum34Espectro óptico34Spectrométrie35Spectroscopy35Spectre UV36Ultraviolet spectra36Modèle atmosphère37Atmosphere model37Modelo atmósfera37Taux production38Production rate38Índice producción38Consistance39Consistency39Consistencia39Age40Age40Edad40Evolution chimique41Chemical evolution41Evolución química41Abondance stellaire42Stellar abundance42Abundancia estelar42Halo galaxies43Galaxy halo43Halo galaxia43Population type II44Population II44Población estelar II44002OTOOTOPASCAL 12-0017836 INISTFirst stars XV. Third-peak r-process element and actinide abundances in the uranium-rich star CS31082-001BARBUY (B.); SPITE (M.); HILL (V.); PRIMAS (F.); PLEZ (B.); CAYREL (R.); SPITE (F.); WANAJO (S.); SIQUEIRA MELLO (C. JR); ANDERSEN (J.); NORDSTRÖM (B.); BEERS (T. C.); BONIFACIO (P.); FRANCOIS (P.); MOLARO (P.)Universidade de São Paulo, IAG, Rua do Matão 1226, Cidade Universitária/São Paulo 05508-900/Brésil (1 aut., 9 aut.); GEPI, Observatoire de Paris, CNRS, UMR 8111/92195 Meudon/France (2 aut., 6 aut., 7 aut., 13 aut., 14 aut.); Universite de Sophia-Antipolis, Observatoire de la Cote d'Azur, CNRS UMR 6202, BP 4229/06304 Nice/France (3 aut.); European Southern Observatory, Karl Schwarzschild Strasse 2/85748 Garching bei Munchen/Allemagne (4 aut.); LUPM, CNRS, UMR 5299, Université de Montpellier II/34095 Montpellier/France (5 aut.); Technische Universitat Munchen, Excellence Cluster Universe, Boltzmannstr. 2/85748 Garching/Allemagne (8 aut.); Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 1/85748 Garching/Allemagne (8 aut.); The Niels Bohr Institute, Juliane Maries Vej 30/2100 Copenhagen/Danemark (10 aut., 11 aut.); Nordic Optical Telescope, Apartado 474/38700 Santa Cruz de La Palma/Espagne (10 aut.); Michigan State University, Department of Physics & Astronomy, and JINA: Joinst Institute for Nuclear Physics/East Lansing, MI 48824/Etats-Unis (12 aut.); INAF - Osservatorio Astronomico di Trieste, via Tiepolo 11/34143 Trieste/Italie (15 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 534; No. p. 1; A60.1-A60.12; Bibl. 3/4 p.AnglaisContext. A small fraction of extremely metal-poor (EMP) stars exhibit moderate to extreme excesses of heavy neutron-capture elements produced in the r-process. The production site(s) of these elements in the early Galaxy remain(s) unclear, as is the reason for their occasional enhancement in the otherwise regular pattern of abundances of elements up to the iron peak. The detailed abundance pattern of the heaviest elements in EMP stars provides insight into their origin and role in the chemical enrichment of the early Galaxy and in radioactive nucleochronology. Aims. The EMP giant star CS 31082-001 ([Fe/H] ˜ -2.9) exhibits an extreme enhancement of neutron-capture elements ([r/Fe] ˜ +1.7) with U and Th enhanced by a further ˜+0.7 dex, and a minimum of blending by molecular lines such as CH or CN. A rich inventory of r-process element abundances was established previously from optical spectra. Here we aim to supplement these data with abundances from near-UV spectroscopy of the third-peak neutron-capture elements, which are crucial for understanding the synthesis of the heaviest elements. Methods. Near-UV spectra from HST/STIS were analysed with LTE model atmospheres and spectrum synthesis calculations to derive new abundances of Os, Ir, Pt, Au, Bi and Pb in CS 31082-001. Results. Together with earlier data, the resulting abundance pattern for the r-process elements provides improved constraints on the nature of the r-process. The observed U and Th abundances and the initial production ratio place CS 31082-001 as one of the oldest stars in the Galaxy, consistent with its extreme metal deficiency. Comparison with the heaviest stable reference elements and with the daughter nuclides Pb and Bi provides a consistency check on this age determination. Finally, the existence of such r-element rich stars indicate that the early chemical evolution of the Galaxy was localised and inhomogeneous.001E03Processus r; Abondance élément; Etoile pauvre en métal; Elément lourd; Capture neutron; Galaxies; Enrichissement chimique; Etoile géante; Spectre optique; Spectrométrie; Spectre UV; Modèle atmosphère; Taux production; Consistance; Age; Evolution chimique; Abondance stellaire; Halo galaxies; Population type IIr process; Element abundance; Metal-poor stars; Heavy element; Neutron capture; Galaxies; Chemical enrichment; Giant stars; Optical spectrum; Spectroscopy; Ultraviolet spectra; Atmosphere model; Production rate; Consistency; Age; Chemical evolution; Stellar abundance; Galaxy halo; Population IIElemento pesado; Captura neutrón; Enriquecimiento químico; Espectro óptico; Modelo atmósfera; Índice producción; Consistencia; Edad; Evolución química; Abundancia estelar; Halo galaxia; Población estelar IIINIST-14176.35400050566240059012-0017836 001B29 CoRoT LRa02_E2_0121: Neptune-size planet candidate turns into a hierarchical triple system with a giant primaryL. Tal-OrSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR1 aut.3 aut.32 aut.A. SanterneLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.T. MazehSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR1 aut.3 aut.32 aut.F. BouchyObservatoire de Haute Provence, CNRS/OAMP04870 St Michel l'ObservatoireFRA4 aut.Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis Bd Arago75014 ParisFRA4 aut.C. MoutouLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.R. AlonsoObservatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE6 aut.29 aut.D. GandolfiResearch and Scientific Support Department, ESTEC/ESA, Keplerlaan 12200AG, NoordwijkNLD7 aut.18 aut.S. AigrainOxford Astrophyiscs, Denys Wilkinson Building, Keble RoadOxford OX1 3RHGBR8 aut.19 aut.M. AuvergneLESIA, Observatoire de Paris, Place Jules Janssen92195 MeudonFRA9 aut.31 aut.P. BargeLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.A. S. BonomoLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.P. BordeInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA12 aut.25 aut.27 aut.H. DeegInstituto de Astrofísica de Canarias, 38205 La LagunaTenerifeESP13 aut.Universidad de La Laguna, Dept. de Astrofísica38200 La Laguna, TenerifeESP13 aut.S. Ferraz-MelloIAG, University of São PauloBRA14 aut.M. DeleuilLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.R. DvorakUniversity of Vienna, Institute of Astronomy, Türkenschanzstr. 171180 ViennaAUT16 aut.A. EriksonInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU17 aut.30 aut.M. FridlundResearch and Scientific Support Department, ESTEC/ESA, Keplerlaan 12200AG, NoordwijkNLD7 aut.18 aut.M. GillonOxford Astrophyiscs, Denys Wilkinson Building, Keble RoadOxford OX1 3RHGBR8 aut.19 aut.University of Liège, Allée du 6 août 17Sart Tilman, LiegeBEL19 aut.E. W. GuentherThüringer Landessternwarte, Sternwarte 5, Tautenburg07778 TautenburgDEU20 aut.22 aut.33 aut.T. GuillotUniversité de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 422906304 NiceFRA21 aut.A. HatzesThüringer Landessternwarte, Sternwarte 5, Tautenburg07778 TautenburgDEU20 aut.22 aut.33 aut.L. JordaLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.H. LammerSpace Research Institute, Austrian Academy of Science, Schmiedlstr. 68042 GrazAUT24 aut.A. LegerInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA12 aut.25 aut.27 aut.A. LlebariaLaboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.M. OllivierInstitut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA12 aut.25 aut.27 aut.M. P TzoldRheinisches Institut fur Umweltforschung an der Universitat zu Koln, Aachener Strasse 20950931 KolnDEU28 aut.D. QuelozObservatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE6 aut.29 aut.H. RauerInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU17 aut.30 aut.Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 3610623 BerlinDEU30 aut.D. RouanLESIA, Observatoire de Paris, Place Jules Janssen92195 MeudonFRA9 aut.31 aut.Y. TsodikovichSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR1 aut.3 aut.32 aut.G. WuchterlThüringer Landessternwarte, Sternwarte 5, Tautenburg07778 TautenburgDEU20 aut.22 aut.33 aut.12-00178372011PASCAL 12-0017837 INISTPascal:12-0017837000D640004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)CorrelationsEclipsing binary starsHierarchical systemsLight curvesModellingNeptune planetOrbitsPlanetary systemRadial velocityPlanète NeptuneSystème hiérarchiséOrbiteVitesse radialeCorrélationModélisationCourbe lumièreBinaire éclipseSystème planétaire
This paper presents the case of CoRoT LRa02_E2_0121, which was initially classified as a Neptune-size transiting-planet candidate on a relatively wide orbit of 36.3 days. Follow-up observations were performed with UVES, Sandiford, SOPHIE, and HARPS. These observations revealed a faint companion in the spectra. To find the true nature of the system we derived the radial velocities of the faint companion using TODMOR - a two-dimensional correlation technique, applied to the SOPHIE spectra. Modeling the lightcurve with EBAS we discovered a secondary eclipse with a depth of ˜0.07%, indicating a diluted eclipsing binary. Combined MCMC modeling of the lightcurve and the radial velocities suggested that CoRoT LRa02_E2_0121 is a hierarchical triple system with an evolved G-type primary and an A-type:F-type grazing eclipsing binary. Such triple systems are difficult to discover.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)534p. 1CoRoT LRa02_E2_0121: Neptune-size planet candidate turns into a hierarchical triple system with a giant primaryTAL-OR (L.)SANTERNE (A.)MAZEH (T.)BOUCHY (F.)MOUTOU (C.)ALONSO (R.)GANDOLFI (D.)AIGRAIN (S.)AUVERGNE (M.)BARGE (P.)BONOMO (A. S.)BORDE (P.)DEEG (H.)FERRAZ-MELLO (S.)DELEUIL (M.)DVORAK (R.)ERIKSON (A.)FRIDLUND (M.)GILLON (M.)GUENTHER (E. W.)GUILLOT (T.)HATZES (A.)JORDA (L.)LAMMER (H.)LEGER (A.)LLEBARIA (A.)OLLIVIER (M.)PÄTZOLD (M.)QUELOZ (D.)RAUER (H.)ROUAN (D.)TSODIKOVICH (Y.)WUCHTERL (G.)School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR1 aut.3 aut.32 aut.Laboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie13388 MarseilleFRA2 aut.5 aut.10 aut.11 aut.15 aut.23 aut.26 aut.Observatoire de Haute Provence, CNRS/OAMP04870 St Michel l'ObservatoireFRA4 aut.Observatoire de l'Université de Genève, 51 chemin des Maillettes1290 SauvernyCHE6 aut.29 aut.Research and Scientific Support Department, ESTEC/ESA, Keplerlaan 12200AG, NoordwijkNLD7 aut.18 aut.Oxford Astrophyiscs, Denys Wilkinson Building, Keble RoadOxford OX1 3RHGBR8 aut.19 aut.LESIA, Observatoire de Paris, Place Jules Janssen92195 MeudonFRA9 aut.31 aut.Institut d'Astrophysique Spatiale, Universite Paris XI91405 OrsayFRA12 aut.25 aut.27 aut.Instituto de Astrofísica de Canarias, 38205 La LagunaTenerifeESP13 aut.IAG, University of São PauloBRA14 aut.University of Vienna, Institute of Astronomy, Türkenschanzstr. 171180 ViennaAUT16 aut.Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU17 aut.30 aut.Thüringer Landessternwarte, Sternwarte 5, Tautenburg07778 TautenburgDEU20 aut.22 aut.33 aut.Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 422906304 NiceFRA21 aut.Space Research Institute, Austrian Academy of Science, Schmiedlstr. 68042 GrazAUT24 aut.Rheinisches Institut fur Umweltforschung an der Universitat zu Koln, Aachener Strasse 20950931 KolnDEU28 aut.Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis Bd Arago75014 ParisFRA4 aut.Universidad de La Laguna, Dept. de Astrofísica38200 La Laguna, TenerifeESP13 aut.University of Liège, Allée du 6 août 17Sart Tilman, LiegeBEL19 aut.Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 3610623 BerlinDEU30 aut.A67.1-A67.62011ENGINIST141763540005056624006600000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0017837PAAstronomy and astrophysics : (Berlin. Print)FRAThis paper presents the case of CoRoT LRa02_E2_0121, which was initially classified as a Neptune-size transiting-planet candidate on a relatively wide orbit of 36.3 days. Follow-up observations were performed with UVES, Sandiford, SOPHIE, and HARPS. These observations revealed a faint companion in the spectra. To find the true nature of the system we derived the radial velocities of the faint companion using TODMOR - a two-dimensional correlation technique, applied to the SOPHIE spectra. Modeling the lightcurve with EBAS we discovered a secondary eclipse with a depth of ˜0.07%, indicating a diluted eclipsing binary. Combined MCMC modeling of the lightcurve and the radial velocities suggested that CoRoT LRa02_E2_0121 is a hierarchical triple system with an evolved G-type primary and an A-type:F-type grazing eclipsing binary. Such triple systems are difficult to discover.001E03Planète Neptune26Neptune planet26Système hiérarchisé27Hierarchical systems27Orbite28Orbits28Vitesse radiale29Radial velocity29Corrélation30Correlations30Modélisation31Modelling31Courbe lumière32Light curves32Binaire éclipse33Eclipsing binary stars33Système planétaire34Planetary system34Sistema planetario34002OTOOTOPASCAL 12-0017837 INISTCoRoT LRa02_E2_0121: Neptune-size planet candidate turns into a hierarchical triple system with a giant primaryTAL-OR (L.); SANTERNE (A.); MAZEH (T.); BOUCHY (F.); MOUTOU (C.); ALONSO (R.); GANDOLFI (D.); AIGRAIN (S.); AUVERGNE (M.); BARGE (P.); BONOMO (A. S.); BORDE (P.); DEEG (H.); FERRAZ-MELLO (S.); DELEUIL (M.); DVORAK (R.); ERIKSON (A.); FRIDLUND (M.); GILLON (M.); GUENTHER (E. W.); GUILLOT (T.); HATZES (A.); JORDA (L.); LAMMER (H.); LEGER (A.); LLEBARIA (A.); OLLIVIER (M.); PÄTZOLD (M.); QUELOZ (D.); RAUER (H.); ROUAN (D.); TSODIKOVICH (Y.); WUCHTERL (G.)School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University/Tel Aviv/Israël (1 aut., 3 aut., 32 aut.); Laboratoire d'Astrophysique de Marseille, Universite de Provence & CNRS, 38 rue Frederic Joliot-Curie/13388 Marseille/France (2 aut., 5 aut., 10 aut., 11 aut., 15 aut., 23 aut., 26 aut.); Observatoire de Haute Provence, CNRS/OAMP/04870 St Michel l'Observatoire/France (4 aut.); Observatoire de l'Université de Genève, 51 chemin des Maillettes/1290 Sauverny/Suisse (6 aut., 29 aut.); Research and Scientific Support Department, ESTEC/ESA, Keplerlaan 1/2200AG, Noordwijk/Pays-Bas (7 aut., 18 aut.); Oxford Astrophyiscs, Denys Wilkinson Building, Keble Road/Oxford OX1 3RH/Royaume-Uni (8 aut., 19 aut.); LESIA, Observatoire de Paris, Place Jules Janssen/92195 Meudon/France (9 aut., 31 aut.); Institut d'Astrophysique Spatiale, Universite Paris XI/91405 Orsay/France (12 aut., 25 aut., 27 aut.); Instituto de Astrofísica de Canarias, 38205 La Laguna/Tenerife/Espagne (13 aut.); IAG, University of São Paulo/Brésil (14 aut.); University of Vienna, Institute of Astronomy, Türkenschanzstr. 17/1180 Vienna/Autriche (16 aut.); Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2/12489 Berlin/Allemagne (17 aut., 30 aut.); Thüringer Landessternwarte, Sternwarte 5, Tautenburg/07778 Tautenburg/Allemagne (20 aut., 22 aut., 33 aut.); Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 4229/06304 Nice/France (21 aut.); Space Research Institute, Austrian Academy of Science, Schmiedlstr. 6/8042 Graz/Autriche (24 aut.); Rheinisches Institut fur Umweltforschung an der Universitat zu Koln, Aachener Strasse 209/50931 Koln/Allemagne (28 aut.); Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis Bd Arago/75014 Paris/France (4 aut.); Universidad de La Laguna, Dept. de Astrofísica/38200 La Laguna, Tenerife/Espagne (13 aut.); University of Liège, Allée du 6 août 17/Sart Tilman, Liege/Belgique (19 aut.); Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36/10623 Berlin/Allemagne (30 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 534; No. p. 1; A67.1-A67.6; Bibl. 1/4 p.AnglaisThis paper presents the case of CoRoT LRa02_E2_0121, which was initially classified as a Neptune-size transiting-planet candidate on a relatively wide orbit of 36.3 days. Follow-up observations were performed with UVES, Sandiford, SOPHIE, and HARPS. These observations revealed a faint companion in the spectra. To find the true nature of the system we derived the radial velocities of the faint companion using TODMOR - a two-dimensional correlation technique, applied to the SOPHIE spectra. Modeling the lightcurve with EBAS we discovered a secondary eclipse with a depth of ˜0.07%, indicating a diluted eclipsing binary. Combined MCMC modeling of the lightcurve and the radial velocities suggested that CoRoT LRa02_E2_0121 is a hierarchical triple system with an evolved G-type primary and an A-type:F-type grazing eclipsing binary. Such triple systems are difficult to discover.001E03Planète Neptune; Système hiérarchisé; Orbite; Vitesse radiale; Corrélation; Modélisation; Courbe lumière; Binaire éclipse; Système planétaireNeptune planet; Hierarchical systems; Orbits; Radial velocity; Correlations; Modelling; Light curves; Eclipsing binary stars; Planetary systemSistema planetarioINIST-14176.35400050566240066012-0017837 001B30 High-ion absorption in the proximate damped Ly-α system toward Q0841 +129A. J. FoxEuropean Southern Observatory, Alonso de Córdova 3107, Casilla 19001Vitacura, SantiagoCHL1 aut.2 aut.Institute of Astronomy, University of Cambridge, Madingley RoadCambridge, CB3 0HAGBR1 aut.C. LedouxEuropean Southern Observatory, Alonso de Córdova 3107, Casilla 19001Vitacura, SantiagoCHL1 aut.2 aut.P. PetitjeanInstitut d'Astrophysique de Paris, UMR7095 CNRS, UPMC, 98bis Blvd Arago75014 ParisFRA3 aut.R. SrianandInter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganesh KhindPune 411 007IND4 aut.R. GuimaraesPrograma de Modelagem Computacional - SENAI - Cimatec, 41650-010 SalvadorBahiaBRA5 aut.12-00178762011PASCAL 12-0017876 INISTPascal:12-0017876000D630004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Absorption lineCase studyGalaxiesGalaxy haloIonizationIonizing radiationsModelsPhotoionizationPlasma shock wavesQuasarsRed shiftSolar abundanceSpectroscopyTurbulent mixingSpectrométrieQuasarDéplacement vers le rougeRayonnement ionisantModèleIonisationEtude casRaie absorptionPhotoionisationMélange turbulentAbondance solaireOnde choc plasmaGalaxiesHalo galaxies
We present VLT/UVES spectroscopy of the quasar Q0841+129, whose spectrum shows a proximate damped Ly-α (PDLA) absorber at z = 2.47621 and a proximate sub-DLA at z = 2.50620, both lying close in redshift to the QSO itself at zem = 2.49510 ± 0.00003. This fortuitous arrangement, with the sub-DLA acting as a filter that hardens the QSO's ionizing radiation field, allows us to model the ionization level in the foreground PDLA, and provides an interesting case-study on the origin of the high-ion absorption lines Si IV, C IV, and O VI in DLAs. The high ions in the PDLA show at least five components spanning a total velocity extent of ≃ 160 km s-1, whereas the low ions exist predominantly in a single component spanning just 30 km s-1. We examine various models for the origin of the high ions. Both photoionization and turbulent mixing layer models are fairly successful at reproducing the observed ionic ratios after correcting for the non-solar relative abundance pattern, though neither model can explain all five components. We show that the turbulent mixing layer model, in which the high ions trace the interfaces between the cool PDLA gas and a hotter phase of shock-heated plasma, can explain the average high-ion ratios measured in a larger sample of 12 DLAs.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)534p. 2High-ion absorption in the proximate damped Ly-α system toward Q0841 +129FOX (A. J.)LEDOUX (C.)PETITJEAN (P.)SRIANAND (R.)GUIMARAES (R.)European Southern Observatory, Alonso de Córdova 3107, Casilla 19001Vitacura, SantiagoCHL1 aut.2 aut.Institute of Astronomy, University of Cambridge, Madingley RoadCambridge, CB3 0HAGBR1 aut.Institut d'Astrophysique de Paris, UMR7095 CNRS, UPMC, 98bis Blvd Arago75014 ParisFRA3 aut.Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganesh KhindPune 411 007IND4 aut.Programa de Modelagem Computacional - SENAI - Cimatec, 41650-010 SalvadorBahiaBRA5 aut.A82.1-A82.112011ENGINIST141763540005056625702300000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0017876PAAstronomy and astrophysics : (Berlin. Print)FRAWe present VLT/UVES spectroscopy of the quasar Q0841+129, whose spectrum shows a proximate damped Ly-α (PDLA) absorber at z = 2.47621 and a proximate sub-DLA at z = 2.50620, both lying close in redshift to the QSO itself at zem = 2.49510 ± 0.00003. This fortuitous arrangement, with the sub-DLA acting as a filter that hardens the QSO's ionizing radiation field, allows us to model the ionization level in the foreground PDLA, and provides an interesting case-study on the origin of the high-ion absorption lines Si IV, C IV, and O VI in DLAs. The high ions in the PDLA show at least five components spanning a total velocity extent of ≃ 160 km s-1, whereas the low ions exist predominantly in a single component spanning just 30 km s-1. We examine various models for the origin of the high ions. Both photoionization and turbulent mixing layer models are fairly successful at reproducing the observed ionic ratios after correcting for the non-solar relative abundance pattern, though neither model can explain all five components. We show that the turbulent mixing layer model, in which the high ions trace the interfaces between the cool PDLA gas and a hotter phase of shock-heated plasma, can explain the average high-ion ratios measured in a larger sample of 12 DLAs.001E03Spectrométrie26Spectroscopy26Quasar27Quasars27Déplacement vers le rouge28Red shift28Rayonnement ionisant29Ionizing radiations29Modèle30Models30Modelo30Ionisation31Ionization31Etude cas32Case study32Estudio caso32Raie absorption33Absorption line33Raya absorción33Photoionisation34Photoionization34Mélange turbulent35Turbulent mixing35Mezcla turbulenta35Abondance solaire36Solar abundance36Abundancia solar36Onde choc plasma37Plasma shock waves37Galaxies38Galaxies38Halo galaxies39Galaxy halo39Halo galaxia39002OTOOTOPASCAL 12-0017876 INISTHigh-ion absorption in the proximate damped Ly-α system toward Q0841 +129FOX (A. J.); LEDOUX (C.); PETITJEAN (P.); SRIANAND (R.); GUIMARAES (R.)European Southern Observatory, Alonso de Córdova 3107, Casilla 19001/Vitacura, Santiago/Chili (1 aut., 2 aut.); Institute of Astronomy, University of Cambridge, Madingley Road/Cambridge, CB3 0HA/Royaume-Uni (1 aut.); Institut d'Astrophysique de Paris, UMR7095 CNRS, UPMC, 98bis Blvd Arago/75014 Paris/France (3 aut.); Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganesh Khind/Pune 411 007/Inde (4 aut.); Programa de Modelagem Computacional - SENAI - Cimatec, 41650-010 Salvador/Bahia/Brésil (5 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 534; No. p. 2; A82.1-A82.11; Bibl. 3/4 p.AnglaisWe present VLT/UVES spectroscopy of the quasar Q0841+129, whose spectrum shows a proximate damped Ly-α (PDLA) absorber at z = 2.47621 and a proximate sub-DLA at z = 2.50620, both lying close in redshift to the QSO itself at zem = 2.49510 ± 0.00003. This fortuitous arrangement, with the sub-DLA acting as a filter that hardens the QSO's ionizing radiation field, allows us to model the ionization level in the foreground PDLA, and provides an interesting case-study on the origin of the high-ion absorption lines Si IV, C IV, and O VI in DLAs. The high ions in the PDLA show at least five components spanning a total velocity extent of ≃ 160 km s-1, whereas the low ions exist predominantly in a single component spanning just 30 km s-1. We examine various models for the origin of the high ions. Both photoionization and turbulent mixing layer models are fairly successful at reproducing the observed ionic ratios after correcting for the non-solar relative abundance pattern, though neither model can explain all five components. We show that the turbulent mixing layer model, in which the high ions trace the interfaces between the cool PDLA gas and a hotter phase of shock-heated plasma, can explain the average high-ion ratios measured in a larger sample of 12 DLAs.001E03Spectrométrie; Quasar; Déplacement vers le rouge; Rayonnement ionisant; Modèle; Ionisation; Etude cas; Raie absorption; Photoionisation; Mélange turbulent; Abondance solaire; Onde choc plasma; Galaxies; Halo galaxiesSpectroscopy; Quasars; Red shift; Ionizing radiations; Models; Ionization; Case study; Absorption line; Photoionization; Turbulent mixing; Solar abundance; Plasma shock waves; Galaxies; Galaxy haloModelo; Estudio caso; Raya absorción; Mezcla turbulenta; Abundancia solar; Halo galaxiaINIST-14176.35400050566257023012-0017876 001B31 The metallicity distribution of bulge clump giants in Baade's windowV. HillUniversité de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur, bd. de l'Observatoire, BP 422906304FRA1 aut.GEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.Universita di Padova,Vicolo dell'Osservatorio 535122 PadovaITAA. LecureurGEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.A. GomezGEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.M. ZoccaliP. Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Casilla 306SantiagoCHL4 aut.10 aut.M. SchultheisObservatoire de Besançon, CNRS UMR 6091, BP 161525010 BesançonFRA5 aut.C. BabusiauxGEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.F. RoyerGEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.B. BarbuyUniversidade de São Paulo, IAG, Rua do Matão 1226Sao Paulo 05508-900BRA8 aut.F. ArenouGEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.D. MinnitiP. Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Casilla 306SantiagoCHL4 aut.10 aut.S. Ortolani12-00178812011PASCAL 12-0017881 INISTPascal:12-0017881000D620004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Box modelsChemical compositionChemical propertiesDeconvolutionGalactic bulgeGalactic disksGalaxiesGalaxy bulgeGalaxy formationKinematicsMetal-rich starsMetallicityMilky WayNormal distributionRed starsStellar abundanceTracersTripletsMétallicitéBulbe galactiqueComposition chimiqueEtoile rougeTraceurEtoile riche en métalTripletDéconvolutionLoi normaleCinématiquePropriété chimiqueModèle boîteDisque galactiqueBulbe galaxiesFormation galaxiesGalaxiesAbondance stellaireVoie lactée
Aims. We seek to constrain the formation of the Galactic bulge by analysing the detailed chemical composition of a large sample of red clump stars in Baade's window. These stars were selected to minimise the contamination by other Galactic components, so they are good tracers of the bulge metallicity distribution in Baade's window, at least for stars more metal-rich than ˜-1.5. Methods. We used an automatic procedure to measure [Fe/H] differentially with respect to the metal-rich star μLeo in a sample of 219 bulge red clump stars from R = 20000 resolution spectra obtained with FLAMES/GIRAFFE at the VLT. For a subsample of 162 stars, we also derived [Mg/H] from spectral synthesis around the Mg I triplet at λ6319 Å. Results. The Fe and Mg metallicity distributions are both asymmetric with median values of +0.16 and +0.21, respectively. They show only a small proportion of stars at low metallicities, extending down to [Fe/H] = -1.1 or [Mg/H] = -0.7. The iron distribution is clearly bimodal, as revealed both by a deconvolution (from observational errors) and a Gaussian decomposition. The decomposition of the observed Fe and Mg metallicity distributions into Gaussian components yields two populations of equal sizes (50% each): a metal-poor component centred on [Fe/H] = -0.30 and [Mg/H] = -0.06 with a large dispersion and a narrow metal-rich component centred on [Fe/H] = +0.32 and [Mg/H] = +0.35. The metal-poor component shows high [Mg/Fe] ratios (around 0.3), while stars in the metal-rich component are found to have nearly solar ratios. Kinematical differences between the two components have also been found: the metal-poor component shows kinematics compatible with an old spheroid, while the metal-rich component is consistent with a population supporting a bar. In view of their chemical and kinematical properties, we suggest different formation scenarii for the two populations: a rapid formation time scale as an old spheroid for the metal-poor component (old bulge) and for the metal-rich component, a formation on a longer time scale driven by the evolution of the bar (pseudo-bulge). The observations are described well by a simple model consisting of two components: a simple closed box model to predict the metal-poor population contribution and a local thin disc metallicity distribution, shifted in metallicity, to represent the metal-rich population. The pseudo-bulge is compatible with its being formed from the inner thin disc, assuming high (but plausible) values of the gradients in the early Galactic disc.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)534p. 2The metallicity distribution of bulge clump giants in Baade's windowHILL (V.)LECUREUR (A.)GOMEZ (A.)ZOCCALI (M.)SCHULTHEIS (M.)BABUSIAUX (C.)ROYER (F.)BARBUY (B.)ARENOU (F.)MINNITI (D.)ORTOLANI (S.)Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur, bd. de l'Observatoire, BP 422906304FRA1 aut.GEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA1 aut.2 aut.3 aut.6 aut.7 aut.9 aut.Observatoire de Besançon, CNRS UMR 6091, BP 161525010 BesançonFRA5 aut.P. Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Casilla 306SantiagoCHL4 aut.10 aut.Universidade de São Paulo, IAG, Rua do Matão 1226Sao Paulo 05508-900BRA8 aut.Universita di Padova,Vicolo dell'Osservatorio 535122 PadovaITAA80.1-A80.202011ENGINIST141763540005056625702100000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0017881PAAstronomy and astrophysics : (Berlin. Print)FRAAims. We seek to constrain the formation of the Galactic bulge by analysing the detailed chemical composition of a large sample of red clump stars in Baade's window. These stars were selected to minimise the contamination by other Galactic components, so they are good tracers of the bulge metallicity distribution in Baade's window, at least for stars more metal-rich than ˜-1.5. Methods. We used an automatic procedure to measure [Fe/H] differentially with respect to the metal-rich star μLeo in a sample of 219 bulge red clump stars from R = 20000 resolution spectra obtained with FLAMES/GIRAFFE at the VLT. For a subsample of 162 stars, we also derived [Mg/H] from spectral synthesis around the Mg I triplet at λ6319 Å. Results. The Fe and Mg metallicity distributions are both asymmetric with median values of +0.16 and +0.21, respectively. They show only a small proportion of stars at low metallicities, extending down to [Fe/H] = -1.1 or [Mg/H] = -0.7. The iron distribution is clearly bimodal, as revealed both by a deconvolution (from observational errors) and a Gaussian decomposition. The decomposition of the observed Fe and Mg metallicity distributions into Gaussian components yields two populations of equal sizes (50% each): a metal-poor component centred on [Fe/H] = -0.30 and [Mg/H] = -0.06 with a large dispersion and a narrow metal-rich component centred on [Fe/H] = +0.32 and [Mg/H] = +0.35. The metal-poor component shows high [Mg/Fe] ratios (around 0.3), while stars in the metal-rich component are found to have nearly solar ratios. Kinematical differences between the two components have also been found: the metal-poor component shows kinematics compatible with an old spheroid, while the metal-rich component is consistent with a population supporting a bar. In view of their chemical and kinematical properties, we suggest different formation scenarii for the two populations: a rapid formation time scale as an old spheroid for the metal-poor component (old bulge) and for the metal-rich component, a formation on a longer time scale driven by the evolution of the bar (pseudo-bulge). The observations are described well by a simple model consisting of two components: a simple closed box model to predict the metal-poor population contribution and a local thin disc metallicity distribution, shifted in metallicity, to represent the metal-rich population. The pseudo-bulge is compatible with its being formed from the inner thin disc, assuming high (but plausible) values of the gradients in the early Galactic disc.001E03Métallicité26Metallicity26Metalicidad26Bulbe galactique27Galactic bulge27Bulbo galáctico27Composition chimique28Chemical composition28Etoile rouge29Red stars29Traceur30Tracers30Etoile riche en métal31Metal-rich stars31Triplet32Triplets32Déconvolution33Deconvolution33Loi normale34Normal distribution34Cinématique35Kinematics35Propriété chimique36Chemical properties36Modèle boîte37Box models37Disque galactique38Galactic disks38Bulbe galaxies39Galaxy bulge39Bulbo galaxias39Formation galaxies40Galaxy formation40Galaxies41Galaxies41Abondance stellaire42Stellar abundance42Abundancia estelar42Voie lactée43Milky Way43002OTOOTOPASCAL 12-0017881 INISTThe metallicity distribution of bulge clump giants in Baade's windowHILL (V.); LECUREUR (A.); GOMEZ (A.); ZOCCALI (M.); SCHULTHEIS (M.); BABUSIAUX (C.); ROYER (F.); BARBUY (B.); ARENOU (F.); MINNITI (D.); ORTOLANI (S.)Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur, bd. de l'Observatoire, BP 4229/06304/France (1 aut.); GEPI, Observatoire de Paris, CNRS UMR 8111, Université Paris Diderot, Place Jules Janssen/92190 Meudon/France (1 aut., 2 aut., 3 aut., 6 aut., 7 aut., 9 aut.); Observatoire de Besançon, CNRS UMR 6091, BP 1615/25010 Besançon/France (5 aut.); P. Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Casilla 306/Santiago/Chili (4 aut., 10 aut.); Universidade de São Paulo, IAG, Rua do Matão 1226/Sao Paulo 05508-900/Brésil (8 aut.); Universita di Padova,Vicolo dell'Osservatorio 5/35122 Padova/Italie
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 534; No. p. 2; A80.1-A80.20; Bibl. 3/4 p.AnglaisAims. We seek to constrain the formation of the Galactic bulge by analysing the detailed chemical composition of a large sample of red clump stars in Baade's window. These stars were selected to minimise the contamination by other Galactic components, so they are good tracers of the bulge metallicity distribution in Baade's window, at least for stars more metal-rich than ˜-1.5. Methods. We used an automatic procedure to measure [Fe/H] differentially with respect to the metal-rich star μLeo in a sample of 219 bulge red clump stars from R = 20000 resolution spectra obtained with FLAMES/GIRAFFE at the VLT. For a subsample of 162 stars, we also derived [Mg/H] from spectral synthesis around the Mg I triplet at λ6319 Å. Results. The Fe and Mg metallicity distributions are both asymmetric with median values of +0.16 and +0.21, respectively. They show only a small proportion of stars at low metallicities, extending down to [Fe/H] = -1.1 or [Mg/H] = -0.7. The iron distribution is clearly bimodal, as revealed both by a deconvolution (from observational errors) and a Gaussian decomposition. The decomposition of the observed Fe and Mg metallicity distributions into Gaussian components yields two populations of equal sizes (50% each): a metal-poor component centred on [Fe/H] = -0.30 and [Mg/H] = -0.06 with a large dispersion and a narrow metal-rich component centred on [Fe/H] = +0.32 and [Mg/H] = +0.35. The metal-poor component shows high [Mg/Fe] ratios (around 0.3), while stars in the metal-rich component are found to have nearly solar ratios. Kinematical differences between the two components have also been found: the metal-poor component shows kinematics compatible with an old spheroid, while the metal-rich component is consistent with a population supporting a bar. In view of their chemical and kinematical properties, we suggest different formation scenarii for the two populations: a rapid formation time scale as an old spheroid for the metal-poor component (old bulge) and for the metal-rich component, a formation on a longer time scale driven by the evolution of the bar (pseudo-bulge). The observations are described well by a simple model consisting of two components: a simple closed box model to predict the metal-poor population contribution and a local thin disc metallicity distribution, shifted in metallicity, to represent the metal-rich population. The pseudo-bulge is compatible with its being formed from the inner thin disc, assuming high (but plausible) values of the gradients in the early Galactic disc.001E03Métallicité; Bulbe galactique; Composition chimique; Etoile rouge; Traceur; Etoile riche en métal; Triplet; Déconvolution; Loi normale; Cinématique; Propriété chimique; Modèle boîte; Disque galactique; Bulbe galaxies; Formation galaxies; Galaxies; Abondance stellaire; Voie lactéeMetallicity; Galactic bulge; Chemical composition; Red stars; Tracers; Metal-rich stars; Triplets; Deconvolution; Normal distribution; Kinematics; Chemical properties; Box models; Galactic disks; Galaxy bulge; Galaxy formation; Galaxies; Stellar abundance; Milky WayMetalicidad; Bulbo galáctico; Bulbo galaxias; Abundancia estelarINIST-14176.35400050566257021012-0017881 001B32 Système éducatif dual et brouillage des frontières entre les secteurs public et privé au BrésilAbdeljalil AkkariUniversité de GenèveGenèveCHE1 aut.2 aut.3 aut.Camila Pompeu Da SilvaUniversité de GenèveGenèveCHE1 aut.2 aut.3 aut.Ana Sheila Fernandes CostaUniversité de GenèveGenèveCHE1 aut.2 aut.3 aut.Peri MesquidaUniversité Catholique du ParanáCuritibaBRA4 aut.12-00204442011FRANCIS 12-0020444 INISTFrancis:12-0020444000E161278-3986Autrepart : (La Tour d' Aigues)Autrepart : (La Tour d'Aigues)BoundaryBrazilEducational PolicyEducational systemInequalityPrivate EntreprisePrivatizationPublic EducationSouth AmericaState EntrepriseSystème éducatifFrontièreSecteur publicSecteur privéBrésilAmérique du SudEnseignement publicPrivatisationInégalitéPolitique de l'éducation
De nombreux travaux de recherche ont abordé la question de la privatisation de l'enseignement public en tentant de mettre en évidence le développement de la logique marchande dans le secteur de l'éducation. Nous adopterons ici une perspective différente en centrant l'analyse sur le brouillage des frontières entre public et privé. Cet article tente, d'une part, d'analyser à qui profite ce brouillage des frontières, et d'autre part, montre comment ce brouillage constitue le principal levier du maintien des inégalités scolaires au Brésil. La problématique des rapports entre enseignement public et privé est particulière dans ce pays, dans la mesure où elle est résistante à la lecture strictement duale (le privé pour les élites et le public pour les classes populaires) qui peut être valable dans d'autres contextes nationaux.
1278-3986Autrepart : (La Tour d' Aigues)59Système éducatif dual et brouillage des frontières entre les secteurs public et privé au BrésilINEGALITES SCOLAIRES AU SUDAKKARI (Abdeljalil)POMPEU DA SILVA (Camila)FERNANDES COSTA (Ana Sheila)MESQUIDA (Peri)HENAFF (Nolwen)ed.LANGE (Marie-France)ed.Université de GenèveGenèveCHE1 aut.2 aut.3 aut.Université Catholique du ParanáCuritibaBRA4 aut.Institut de Recherche pour le développement -UMR 196 (IRD)FRA1 aut.2 aut.109-124, 200-201, 204 [19 p.]2011FREengINIST10882E3540001912301800700000© 2012 INIST-CNRS. All rights reserved.2 p.1/412-0020444PAAutrepart : (La Tour d'Aigues)FRAQUIDA, Two-Tiered Education System and Blurring Boundaries Between Public And Private Sectors In BrazilDe nombreux travaux de recherche ont abordé la question de la privatisation de l'enseignement public en tentant de mettre en évidence le développement de la logique marchande dans le secteur de l'éducation. Nous adopterons ici une perspective différente en centrant l'analyse sur le brouillage des frontières entre public et privé. Cet article tente, d'une part, d'analyser à qui profite ce brouillage des frontières, et d'autre part, montre comment ce brouillage constitue le principal levier du maintien des inégalités scolaires au Brésil. La problématique des rapports entre enseignement public et privé est particulière dans ce pays, dans la mesure où elle est résistante à la lecture strictement duale (le privé pour les élites et le public pour les classes populaires) qui peut être valable dans d'autres contextes nationaux.52960UV529Système éducatif01Educational system01Frontière02Boundary02Secteur public03State Entreprise03Secteur privé04Private Entreprise04BrésilNG05BrazilNG05Amérique du SudNG06South AmericaNG06Enseignement public07Public Education07Privatisation08Privatization08Inégalité09Inequality09Politique de l'éducation10Educational Policy10009FRANCIS 12-0020444 INISTSystème éducatif dual et brouillage des frontières entre les secteurs public et privé au Brésil(QUIDA, Two-Tiered Education System and Blurring Boundaries Between Public And Private Sectors In Brazil)AKKARI (Abdeljalil); POMPEU DA SILVA (Camila); FERNANDES COSTA (Ana Sheila); MESQUIDA (Peri); HENAFF (Nolwen); LANGE (Marie-France)Université de Genève/Genève/Suisse (1 aut., 2 aut., 3 aut.); Université Catholique du Paraná/Curitiba/Brésil (4 aut.); Institut de Recherche pour le développement -UMR 196 (IRD)/France (1 aut., 2 aut.)
Publication en série; Niveau analytique
Autrepart : (La Tour d'Aigues); ISSN 1278-3986; France; Da. 2011; No. 59; 109-124, 200-201, 204 [19 p.]; Abs. anglais; Bibl. 2 p.1/4FrançaisDe nombreux travaux de recherche ont abordé la question de la privatisation de l'enseignement public en tentant de mettre en évidence le développement de la logique marchande dans le secteur de l'éducation. Nous adopterons ici une perspective différente en centrant l'analyse sur le brouillage des frontières entre public et privé. Cet article tente, d'une part, d'analyser à qui profite ce brouillage des frontières, et d'autre part, montre comment ce brouillage constitue le principal levier du maintien des inégalités scolaires au Brésil. La problématique des rapports entre enseignement public et privé est particulière dans ce pays, dans la mesure où elle est résistante à la lecture strictement duale (le privé pour les élites et le public pour les classes populaires) qui peut être valable dans d'autres contextes nationaux.52960U; 529Système éducatif; Frontière; Secteur public; Secteur privé; Brésil; Amérique du Sud; Enseignement public; Privatisation; Inégalité; Politique de l'éducationEducational system; Boundary; State Entreprise; Private Entreprise; Brazil; South America; Public Education; Privatization; Inequality; Educational PolicyINIST-10882E.35400019123018007012-0020444 001B33 Seed dispersal by fishes in tropical and temperate fresh waters: The growing evidenceMichael H. HornDepartment of Biological Science, California State University, Fullerton, 800 North State College BoulevardFullerton, CA 92834-6850USA1 aut.Sandra Bibiana CorreaDepartment of Wildlife and Fisheries Sciences, Texas A&M UniversityCollege Station, TXUSA2 aut.Pia ParolinBiocentre Klein Flottbeck and Botanical Garden, University of HamburgHamburgDEU3 aut.B. J. A. PolluxDepartment of Animal Sciences, Wageningen UniversityWageningenNLD4 aut.Jill T. AndersonDepartment of Biology, Duke UniversityDurham, NCUSA5 aut.Christine LucasDepartment of Wildlife Ecology & Conservation, University of FloridaGainesville, FLUSA6 aut.Peter WidmannFakultas Kehutanan, Universitas Tanjungpura, Pontianak 78124West KalimantanIDN7 aut.Albertus TjiuWorld Wildlife Fund Indonesia, Jalan DR. Rubini No. 9A, Pontianak 78121West KalimantanIDN8 aut.Mauro GalettiDepartamento de Ecologia, Universidade Estadual Paulista, Rio ClaroSão PauloBRA9 aut.Michael GouldingWildlife Conservation SocietyBronx, NYUSA10 aut.12-00210962011PASCAL 12-0021096 INISTPascal:12-0021096000D611146-609XActa oecol. : (Montrouge)Acta oecologica : (Montrouge)Anthropogenic factorBiogeographyDispersionDiversityFlood plainFresh waterFrugivorousPiscesSeedsTropical zoneZoochoryGraineDispersionPiscesZone tropicaleEau douceFrugivoreZoochorieDiversitéBiogéographiePlaine inondableFacteur anthropique
Fruit-eating by fishes represents an ancient (perhaps Paleozoic) interaction increasingly regarded as important for seed dispersal (ichthyochory) in tropical and temperate ecosystems. Most of the more than 275 known frugivorous species belong to the mainly Neotropical Characiformes (pacus, piranhas) and Siluriformes (catfishes), but cypriniforms (carps, minnows) are more important in the Holarctic and Indomalayan regions. Frugivores are among the most abundant fishes in Neotropical floodplains where they eat the fruits of a wide variety of trees and shrubs. By consuming fruits, fishes gain access to rich sources of carbohydrates, lipids and proteins and act as either seed predators or seed dispersers. With their often high mobility, large size, and great longevity, fruit-eating fishes can play important roles as seed dispersers and exert strong influences on local plant-recruitment dynamics and regional biodiversity. Recent feeding experiments focused on seed traits after gut passage support the idea that fishes are major seed dispersers in floodplain and riparian forests. Overfishing, damming, deforestation and logging potentially diminish ichthyochory and require immediate attention to ameliorate their effects. Much exciting work remains in terms of fish and plant adaptations to ichthyochory, dispersal regimes involving fishes in different ecosystems, and increased use of nondestructive methods such as stomach lavage, stable isotopes, genetic analyses and radio transmitters to determine fish diets and movements.
1146-609XActa oecol. : (Montrouge)376Seed dispersal by fishes in tropical and temperate fresh waters: The growing evidenceFrugivores and Seed Dispersal: Mechanisms and Consequences of a Key Interaction for BiodiversityHORN (Michael H.)BIBIANA CORREA (Sandra)PAROLIN (Pia)POLLUX (B. J. A.)ANDERSON (Jill T.)LUCAS (Christine)WIDMANN (Peter)TJIU (Albertus)GALETTI (Mauro)GOULDING (Michael)FORGET (Pierre-Michel)limin.JORDANO (Pedro)limin.LAMBERT (Joanna E.)limin.BOHNING-GAESE (Katrin)limin.TRAVESET (Anna)limin.WRIGHT (S. Joseph)limin.Department of Biological Science, California State University, Fullerton, 800 North State College BoulevardFullerton, CA 92834-6850USA1 aut.Department of Wildlife and Fisheries Sciences, Texas A&M UniversityCollege Station, TXUSA2 aut.Biocentre Klein Flottbeck and Botanical Garden, University of HamburgHamburgDEU3 aut.Department of Animal Sciences, Wageningen UniversityWageningenNLD4 aut.Department of Biology, Duke UniversityDurham, NCUSA5 aut.Department of Wildlife Ecology & Conservation, University of FloridaGainesville, FLUSA6 aut.Fakultas Kehutanan, Universitas Tanjungpura, Pontianak 78124West KalimantanIDN7 aut.World Wildlife Fund Indonesia, Jalan DR. Rubini No. 9A, Pontianak 78121West KalimantanIDN8 aut.Departamento de Ecologia, Universidade Estadual Paulista, Rio ClaroSão PauloBRA9 aut.Wildlife Conservation SocietyBronx, NYUSA10 aut.Muséum National d'Histoire Naturelle, UMR 7179, 1 Avenue du Petit Château91800 BrunoyFRA1 aut.Integrative Ecology Group, Estación Biológica de Doñana (EBD-CSIC), Avda. Americo Vespucio s/n, Isla de La Cartuja41092 SevillaESP2 aut.Department of Ecological Anthropology, University of Texas at San Antonio, One UTSA CircleSan Antonio, TX 78249USA3 aut.Goethe Universität, Department of Biological Sciences, Siesmayerstr. 7060323 FrankfurtDEU4 aut.Biodiversity and Climate Research Centre (Bik-F), Senckenberganlage 2560325 FrankfurtDEU4 aut.Institut Mediterrani d'Estudis Avançats (CSIC-UIB), c/Miquel, Marqués 2107190-Esporles Mallorca, Illes BalearsESP5 aut.Smithsonian Tropical Research Institute, Box 0843-03092Balboa, AnconPAN6 aut.561-5772011ENGINIST129043540005073272700500000© 2012 INIST-CNRS. All rights reserved.2 p.3/412-0021096PAActa oecologica : (Montrouge)NLDFruit-eating by fishes represents an ancient (perhaps Paleozoic) interaction increasingly regarded as important for seed dispersal (ichthyochory) in tropical and temperate ecosystems. Most of the more than 275 known frugivorous species belong to the mainly Neotropical Characiformes (pacus, piranhas) and Siluriformes (catfishes), but cypriniforms (carps, minnows) are more important in the Holarctic and Indomalayan regions. Frugivores are among the most abundant fishes in Neotropical floodplains where they eat the fruits of a wide variety of trees and shrubs. By consuming fruits, fishes gain access to rich sources of carbohydrates, lipids and proteins and act as either seed predators or seed dispersers. With their often high mobility, large size, and great longevity, fruit-eating fishes can play important roles as seed dispersers and exert strong influences on local plant-recruitment dynamics and regional biodiversity. Recent feeding experiments focused on seed traits after gut passage support the idea that fishes are major seed dispersers in floodplain and riparian forests. Overfishing, damming, deforestation and logging potentially diminish ichthyochory and require immediate attention to ameliorate their effects. Much exciting work remains in terms of fish and plant adaptations to ichthyochory, dispersal regimes involving fishes in different ecosystems, and increased use of nondestructive methods such as stomach lavage, stable isotopes, genetic analyses and radio transmitters to determine fish diets and movements.002A14B01002A15BGraine01Seeds01Semillas01Dispersion02Dispersion02Dispersión02PiscesNS03PiscesNS03PiscesNS03Zone tropicale04Tropical zone04Zona tropical04Eau douce05Fresh water05Agua dulce05Frugivore06Frugivorous06Frugívoro06Zoochorie07Zoochory07Zoocoria07Diversité08Diversity08Diversidad08Biogéographie09Biogeography09Biogeografía09Plaine inondable10Flood plain10Llano inundable10Facteur anthropique11Anthropogenic factor11Factor antrópico11VertebrataNSVertebrataNSVertebrataNS009OTOOTOPASCAL 12-0021096 INISTSeed dispersal by fishes in tropical and temperate fresh waters: The growing evidenceHORN (Michael H.); BIBIANA CORREA (Sandra); PAROLIN (Pia); POLLUX (B. J. A.); ANDERSON (Jill T.); LUCAS (Christine); WIDMANN (Peter); TJIU (Albertus); GALETTI (Mauro); GOULDING (Michael); FORGET (Pierre-Michel); JORDANO (Pedro); LAMBERT (Joanna E.); BOHNING-GAESE (Katrin); TRAVESET (Anna); WRIGHT (S. Joseph)Department of Biological Science, California State University, Fullerton, 800 North State College Boulevard/Fullerton, CA 92834-6850/Etats-Unis (1 aut.); Department of Wildlife and Fisheries Sciences, Texas A&M University/College Station, TX/Etats-Unis (2 aut.); Biocentre Klein Flottbeck and Botanical Garden, University of Hamburg/Hamburg/Allemagne (3 aut.); Department of Animal Sciences, Wageningen University/Wageningen/Pays-Bas (4 aut.); Department of Biology, Duke University/Durham, NC/Etats-Unis (5 aut.); Department of Wildlife Ecology & Conservation, University of Florida/Gainesville, FL/Etats-Unis (6 aut.); Fakultas Kehutanan, Universitas Tanjungpura, Pontianak 78124/West Kalimantan/Indonésie (7 aut.); World Wildlife Fund Indonesia, Jalan DR. Rubini No. 9A, Pontianak 78121/West Kalimantan/Indonésie (8 aut.); Departamento de Ecologia, Universidade Estadual Paulista, Rio Claro/São Paulo/Brésil (9 aut.); Wildlife Conservation Society/Bronx, NY/Etats-Unis (10 aut.); Muséum National d'Histoire Naturelle, UMR 7179, 1 Avenue du Petit Château/91800 Brunoy/France (1 aut.); Integrative Ecology Group, Estación Biológica de Doñana (EBD-CSIC), Avda. Americo Vespucio s/n, Isla de La Cartuja/41092 Sevilla/Espagne (2 aut.); Department of Ecological Anthropology, University of Texas at San Antonio, One UTSA Circle/San Antonio, TX 78249/Etats-Unis (3 aut.); Goethe Universität, Department of Biological Sciences, Siesmayerstr. 70/60323 Frankfurt/Allemagne (4 aut.); Biodiversity and Climate Research Centre (Bik-F), Senckenberganlage 25/60325 Frankfurt/Allemagne (4 aut.); Institut Mediterrani d'Estudis Avançats (CSIC-UIB), c/Miquel, Marqués 21/07190-Esporles Mallorca, Illes Balears/Espagne (5 aut.); Smithsonian Tropical Research Institute, Box 0843-03092/Balboa, Ancon/Panama (6 aut.)
Publication en série; Niveau analytique
Acta oecologica : (Montrouge); ISSN 1146-609X; Pays-Bas; Da. 2011; Vol. 37; No. 6; Pp. 561-577; Bibl. 2 p.3/4AnglaisFruit-eating by fishes represents an ancient (perhaps Paleozoic) interaction increasingly regarded as important for seed dispersal (ichthyochory) in tropical and temperate ecosystems. Most of the more than 275 known frugivorous species belong to the mainly Neotropical Characiformes (pacus, piranhas) and Siluriformes (catfishes), but cypriniforms (carps, minnows) are more important in the Holarctic and Indomalayan regions. Frugivores are among the most abundant fishes in Neotropical floodplains where they eat the fruits of a wide variety of trees and shrubs. By consuming fruits, fishes gain access to rich sources of carbohydrates, lipids and proteins and act as either seed predators or seed dispersers. With their often high mobility, large size, and great longevity, fruit-eating fishes can play important roles as seed dispersers and exert strong influences on local plant-recruitment dynamics and regional biodiversity. Recent feeding experiments focused on seed traits after gut passage support the idea that fishes are major seed dispersers in floodplain and riparian forests. Overfishing, damming, deforestation and logging potentially diminish ichthyochory and require immediate attention to ameliorate their effects. Much exciting work remains in terms of fish and plant adaptations to ichthyochory, dispersal regimes involving fishes in different ecosystems, and increased use of nondestructive methods such as stomach lavage, stable isotopes, genetic analyses and radio transmitters to determine fish diets and movements.002A14B01; 002A15BGraine; Dispersion; Pisces; Zone tropicale; Eau douce; Frugivore; Zoochorie; Diversité; Biogéographie; Plaine inondable; Facteur anthropiqueVertebrataSeeds; Dispersion; Pisces; Tropical zone; Fresh water; Frugivorous; Zoochory; Diversity; Biogeography; Flood plain; Anthropogenic factorVertebrataSemillas; Dispersión; Pisces; Zona tropical; Agua dulce; Frugívoro; Zoocoria; Diversidad; Biogeografía; Llano inundable; Factor antrópicoINIST-12904.35400050732727005012-0021096 001B34 Large atom number dual-species magneto-optical trap for fermionic <sup>6</sup>Li and <sup>40</sup>K atomsA. RidingerLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.S. ChaudhuriLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.T. SalezLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.U. EismannLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.D. R. FernandesLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.K. MagalhaesInstituto de Fisica de São Carlos, Universidade de São Paulo, Caixa Postal 36913560-970 São Carlos-SPBRA6 aut.D. WilkowskiCentre for Quantum Technologies, National University of Singapore117543 SingaporeSGP7 aut.Institut Non Lineaire de Nice, Universite de Nice Sophia-Antipolis, CNRS06560 ValbonneFRA7 aut.C. SalomonLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.F. ChevyLaboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.12-00211222011PASCAL 12-0021122 INISTPascal:12-0021122000D601434-6060Eur. phys. j., D At. mol. opt. phys.The European physical journal. D, Atomic, molecular and optical physics : (Print)Fermi gasFermion systemsField gradientsLithium 6Lithium AtomsMagnetooptical trapPhotoinduced effectPotassium 40Potassium AtomsZeeman effectEffet photoinduitGaz FermiSystème fermionsPiège magnétooptiqueLithium AtomePotassium 40Gradient champLithium 6Potassium AtomeEffet ZeemanLi0375S0530FK37103260
We present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atom numbers. The MOT simultaneously contains 5.2×109 6Li-atoms and 8.0×109 40K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a 2D-MOT for 40K. The atom sources induce capture rates of 1.2×109 6Li-atoms/s and 1.4×109 40K-atoms/s. Trap losses due to light-induced interspecies collisions of ∼65% were observed and could be minimized to ∼10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture.
1434-6060Eur. phys. j., D At. mol. opt. phys.651-2Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atomsCold Quantum MatterRIDINGER (A.)CHAUDHURI (S.)SALEZ (T.)EISMANN (U.)FERNANDES (D. R.)MAGALHAES (K.)WILKOWSKI (D.)SALOMON (C.)CHEVY (F.)BIRKL (Gerhard)ed.FOOT (Christopher)ed.FREEGARDE (Tim)ed.GRIMM (Rudolf)ed.HUTSON (Jeremy M.)ed.WEIDEMÜLLER (Matthias)ed.Laboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond75231 ParisFRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Instituto de Fisica de São Carlos, Universidade de São Paulo, Caixa Postal 36913560-970 São Carlos-SPBRA6 aut.Centre for Quantum Technologies, National University of Singapore117543 SingaporeSGP7 aut.Institut Non Lineaire de Nice, Universite de Nice Sophia-Antipolis, CNRS06560 ValbonneFRA7 aut.University of DarmstadDEU1 aut.University of OxfordGBR2 aut.University of SouthamptonGBR3 aut.University of InnsbruckAUS4 aut.University of DurhamGBR5 aut.University of HeidelbergDEU6 aut.223-2422011ENGINIST266893540005073258602600000© 2012 INIST-CNRS. All rights reserved.41 ref.12-0021122PAThe European physical journal. D, Atomic, molecular and optical physics : (Print)FRAWe present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atom numbers. The MOT simultaneously contains 5.2×109 6Li-atoms and 8.0×109 40K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a 2D-MOT for 40K. The atom sources induce capture rates of 1.2×109 6Li-atoms/s and 1.4×109 40K-atoms/s. Trap losses due to light-induced interspecies collisions of ∼65% were observed and could be minimized to ∼10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture.001B00C75001B00E30F001B30G10001B30B60Effet photoinduit03Photoinduced effect03Efecto fotoinducido03Gaz Fermi04Fermi gas04Système fermions05Fermion systems05Piège magnétooptique11Magnetooptical trap11Trampa magneto-óptica11Lithium AtomeNC50Lithium AtomsNC50Potassium 4057Potassium 4057Gradient champ61Field gradients61Lithium 662Lithium 662Potassium AtomeNC63Potassium AtomsNC63Effet Zeeman64Zeeman effect64LiINC710375SINC830530FINC84KINC853710INC863260INC87009PASCAL 12-0021122 INISTLarge atom number dual-species magneto-optical trap for fermionic 6Li and 40K atomsRIDINGER (A.); CHAUDHURI (S.); SALEZ (T.); EISMANN (U.); FERNANDES (D. R.); MAGALHAES (K.); WILKOWSKI (D.); SALOMON (C.); CHEVY (F.); BIRKL (Gerhard); FOOT (Christopher); FREEGARDE (Tim); GRIMM (Rudolf); HUTSON (Jeremy M.); WEIDEMÜLLER (Matthias)Laboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite Pierre et Marie-Curie, 24 rue Lhomond/75231 Paris/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 8 aut., 9 aut.); Instituto de Fisica de São Carlos, Universidade de São Paulo, Caixa Postal 369/13560-970 São Carlos-SP/Brésil (6 aut.); Centre for Quantum Technologies, National University of Singapore/117543 Singapore/Singapour (7 aut.); Institut Non Lineaire de Nice, Universite de Nice Sophia-Antipolis, CNRS/06560 Valbonne/France (7 aut.); University of Darmstad/Allemagne (1 aut.); University of Oxford/Royaume-Uni (2 aut.); University of Southampton/Royaume-Uni (3 aut.); University of Innsbruck/Australie (4 aut.); University of Durham/Royaume-Uni (5 aut.); University of Heidelberg/Allemagne (6 aut.)
Publication en série; Niveau analytique
The European physical journal. D, Atomic, molecular and optical physics : (Print); ISSN 1434-6060; France; Da. 2011; Vol. 65; No. 1-2; Pp. 223-242; Bibl. 41 ref.AnglaisWe present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atom numbers. The MOT simultaneously contains 5.2×109 6Li-atoms and 8.0×109 40K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a 2D-MOT for 40K. The atom sources induce capture rates of 1.2×109 6Li-atoms/s and 1.4×109 40K-atoms/s. Trap losses due to light-induced interspecies collisions of ∼65% were observed and could be minimized to ∼10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture.001B00C75; 001B00E30F; 001B30G10; 001B30B60Effet photoinduit; Gaz Fermi; Système fermions; Piège magnétooptique; Lithium Atome; Potassium 40; Gradient champ; Lithium 6; Potassium Atome; Effet Zeeman; Li; 0375S; 0530F; K; 3710; 3260Photoinduced effect; Fermi gas; Fermion systems; Magnetooptical trap; Lithium Atoms; Potassium 40; Field gradients; Lithium 6; Potassium Atoms; Zeeman effectEfecto fotoinducido; Trampa magneto-ópticaINIST-26689.35400050732586026012-0021122 001B35 Raltegravir once daily or twice daily in previously untreated patients with HIV-1: a randomised, active-controlled, phase 3 non-inferiority trialJoseph Jr EronUniversity of North Carolina School of MedicineChapel Hill, NCUSA1 aut.J Rgen K. RockstrohOberarzt an der Medizinischen UniversitätsklinikBonnDEU2 aut.Jacques ReynesCentre Hospitalier Universitaire Gui de ChauliacMontpellierFRA3 aut.Jaime Andrade-VillanuevaHospital Civil de Guadalajara, Universidad de GuadalajaraGuadalajaraMEX4 aut.Jose Valdez Ramalho-MadrugaCentro de Referencia e Treinamento DST/AIDSSao PauloBRA5 aut.Linda-Gail BekkerUniversity of Cape TownCape TownZAF6 aut.Benjamin YoungRocky Mountain CARES/Denver Infectious Disease ConsultantsDenver, COUSA7 aut.Christine KatlamaHôpital Pitié-SalpêtrièreParisFRA8 aut.Jose Maria Gatell-ArtigasHospital Clinic I Provincial de BarcelonaBarcelonaESP9 aut.Jose R. ArribasHospital Universitario La Paz, Instituto de Investigación Hospital Universitario La PazMadridESP10 aut.Mark NelsonSt Stephen's AIDSTrust/ Crusaid Research InstituteLondonGBR11 aut.Havilland CampbellMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.JING ZHAOMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Anthony J. RodgersMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Matthew L. RizkMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Larissa WenningMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Michael D. MillerMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Daria HazudaMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Mark J. DinubileMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Randi LeavittMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Robin IsaacsMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Michael N. RobertsonMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Peter SklarMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.Bach-Yen NguyenMerck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.12-00222602011PASCAL 12-0022260 INISTPascal:12-0022260000D591473-3099Lancet. Infect. dis. : (print)Lancet. Infectious diseases : (print)AIDSAntiretroviral agentAntiviralHIV-1 virusHumanRaltegravirSIDARaltégravirHommeVirus HIV1AntiviralAntirétroviral
Background Twice-daily raltegravir with once-daily tenofovir-emtricitabine is an effective initial antiretroviral regimen for patients with HIV-1. On the basis of pharmacokinetic data suggesting efficacy of once-daily raltegravir and because adherence is often improved with once-daily dosing, we aimed to compare these dosing schedules. Methods In our international, double-blind, randomised, phase 3 non-inferiority study, we enrolled antiretroviral-naive patients with HIV RNA loads of more than 5000 copies per mL and no baseline resistance to tenofovir or emtricitabine at 83 centres worldwide. We randomly allocated patients (1:1) by use of a computer-generated sequence to receive raltegravir once daily (two 400 mg tablets taken together every 24 h), or twice daily (one 400 mg tablet every 12 h), both in combination with once-daily co-formulated tenofovir 300 mg plus emtricitabine 200 mg. The primary outcome was virological response at 48 weeks (viral RNA loads <50 copies per mL) in patients who received at least one dose of study drug, counting non-completers as failure. We assessed non-inferiority in terms of the proportion of patients in both treatment groups who achieved the primary outcome, with a non-inferiority margin of -10%. This study is registered with ClinicalTrials.gov, number NCT00745823. Findings From Oct 15, 2008, to Nov 2, 2009, we randomly allocated 775 patients, of whom 382 (99%) of 386 patients in the once-daily group and 388 (99%) of 389 in the twice-daily group received at least one dose of study drug. At baseline, 304 (39%) of 770 treated patients had viral loads of more than 100000 copies per mL and 188 (24%) had CD4 cell counts of fewer than 200 cells per μL. 318 (83%) of 382 patients in the once-daily group had virological response compared with 343 (89%) of 386 in the twice-daily group (difference -5.7%, 95% CI -10.7 to -0.83; p=0.044). Serious adverse events were reported in 26 (7%) of 382 once-daily recipients and 40 (10%) of 388 twice-daily recipients, and adverse events leading to discontinuation occurred in four (1%) patients in each group. Interpretation Despite high response rates with both regimens, once-daily raltegravir cannot be recommended in place of twice-daily dosing. Funding Merck.
1473-3099Lancet. Infect. dis. : (print)1112Raltegravir once daily or twice daily in previously untreated patients with HIV-1: a randomised, active-controlled, phase 3 non-inferiority trialERON (Joseph JR)ROCKSTROH (Jürgen K.)REYNES (Jacques)ANDRADE-VILLANUEVA (Jaime)RAMALHO-MADRUGA (Jose Valdez)BEKKER (Linda-Gail)YOUNG (Benjamin)KATLAMA (Christine)GATELL-ARTIGAS (Jose Maria)ARRIBAS (Jose R.)NELSON (Mark)CAMPBELL (Havilland)JING ZHAORODGERS (Anthony J.)RIZK (Matthew L.)WENNING (Larissa)MILLER (Michael D.)HAZUDA (Daria)DINUBILE (Mark J.)LEAVITT (Randi)ISAACS (Robin)ROBERTSON (Michael N.)SKLAR (Peter)NGUYEN (Bach-Yen)University of North Carolina School of MedicineChapel Hill, NCUSA1 aut.Oberarzt an der Medizinischen UniversitätsklinikBonnDEU2 aut.Centre Hospitalier Universitaire Gui de ChauliacMontpellierFRA3 aut.Hospital Civil de Guadalajara, Universidad de GuadalajaraGuadalajaraMEX4 aut.Centro de Referencia e Treinamento DST/AIDSSao PauloBRA5 aut.University of Cape TownCape TownZAF6 aut.Rocky Mountain CARES/Denver Infectious Disease ConsultantsDenver, COUSA7 aut.Hôpital Pitié-SalpêtrièreParisFRA8 aut.Hospital Clinic I Provincial de BarcelonaBarcelonaESP9 aut.Hospital Universitario La Paz, Instituto de Investigación Hospital Universitario La PazMadridESP10 aut.St Stephen's AIDSTrust/ Crusaid Research InstituteLondonGBR11 aut.Merck Research LaboratoriesNorth Wales, PAUSA12 aut.13 aut.14 aut.15 aut.16 aut.17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.23 aut.24 aut.QDMRK InvestigatorsINC907-9152011ENGINIST274783540005073680100800000© 2012 INIST-CNRS. All rights reserved.28 ref.12-0022260PALancet. Infectious diseases : (print)GBRBackground Twice-daily raltegravir with once-daily tenofovir-emtricitabine is an effective initial antiretroviral regimen for patients with HIV-1. On the basis of pharmacokinetic data suggesting efficacy of once-daily raltegravir and because adherence is often improved with once-daily dosing, we aimed to compare these dosing schedules. Methods In our international, double-blind, randomised, phase 3 non-inferiority study, we enrolled antiretroviral-naive patients with HIV RNA loads of more than 5000 copies per mL and no baseline resistance to tenofovir or emtricitabine at 83 centres worldwide. We randomly allocated patients (1:1) by use of a computer-generated sequence to receive raltegravir once daily (two 400 mg tablets taken together every 24 h), or twice daily (one 400 mg tablet every 12 h), both in combination with once-daily co-formulated tenofovir 300 mg plus emtricitabine 200 mg. The primary outcome was virological response at 48 weeks (viral RNA loads <50 copies per mL) in patients who received at least one dose of study drug, counting non-completers as failure. We assessed non-inferiority in terms of the proportion of patients in both treatment groups who achieved the primary outcome, with a non-inferiority margin of -10%. This study is registered with ClinicalTrials.gov, number NCT00745823. Findings From Oct 15, 2008, to Nov 2, 2009, we randomly allocated 775 patients, of whom 382 (99%) of 386 patients in the once-daily group and 388 (99%) of 389 in the twice-daily group received at least one dose of study drug. At baseline, 304 (39%) of 770 treated patients had viral loads of more than 100000 copies per mL and 188 (24%) had CD4 cell counts of fewer than 200 cells per μL. 318 (83%) of 382 patients in the once-daily group had virological response compared with 343 (89%) of 386 in the twice-daily group (difference -5.7%, 95% CI -10.7 to -0.83; p=0.044). Serious adverse events were reported in 26 (7%) of 382 once-daily recipients and 40 (10%) of 388 twice-daily recipients, and adverse events leading to discontinuation occurred in four (1%) patients in each group. Interpretation Despite high response rates with both regimens, once-daily raltegravir cannot be recommended in place of twice-daily dosing. Funding Merck.002B05C02D002B02S05002B06D01SIDA01AIDS01SIDA01RaltégravirFR04RaltegravirFR04RaltegravirFR04Homme10Human10Hombre10Virus HIV1NW11HIV-1 virusNW11HIV-1 virusNW11Antiviral30Antiviral30Antiviral30Antirétroviral31Antiretroviral agent31Antiretroviral31ViroseViral diseaseVirosisInfectionInfectionInfecciónVirus immunodéficience humaineNWHuman immunodeficiency virusNWHuman immunodeficiency virusNWLentivirusNWLentivirusNWLentivirusNWRetroviridaeNWRetroviridaeNWRetroviridaeNWVirusNWVirusNWVirusNWInhibiteur de l'intégrase37Integrase inhibitor37Inhibidor integrase37Immunodéficit38Immune deficiency38Inmunodeficiencia38Immunopathologie40Immunopathology40Inmunopatología40Inhibiteur de transfert de brinsINC86009OTOOTOPASCAL 12-0022260 INISTRaltegravir once daily or twice daily in previously untreated patients with HIV-1: a randomised, active-controlled, phase 3 non-inferiority trialERON (Joseph JR); ROCKSTROH (Jürgen K.); REYNES (Jacques); ANDRADE-VILLANUEVA (Jaime); RAMALHO-MADRUGA (Jose Valdez); BEKKER (Linda-Gail); YOUNG (Benjamin); KATLAMA (Christine); GATELL-ARTIGAS (Jose Maria); ARRIBAS (Jose R.); NELSON (Mark); CAMPBELL (Havilland); JING ZHAO; RODGERS (Anthony J.); RIZK (Matthew L.); WENNING (Larissa); MILLER (Michael D.); HAZUDA (Daria); DINUBILE (Mark J.); LEAVITT (Randi); ISAACS (Robin); ROBERTSON (Michael N.); SKLAR (Peter); NGUYEN (Bach-Yen)University of North Carolina School of Medicine/Chapel Hill, NC/Etats-Unis (1 aut.); Oberarzt an der Medizinischen Universitätsklinik/Bonn/Allemagne (2 aut.); Centre Hospitalier Universitaire Gui de Chauliac/Montpellier/France (3 aut.); Hospital Civil de Guadalajara, Universidad de Guadalajara/Guadalajara/Mexique (4 aut.); Centro de Referencia e Treinamento DST/AIDS/Sao Paulo/Brésil (5 aut.); University of Cape Town/Cape Town/Afrique du Sud (6 aut.); Rocky Mountain CARES/Denver Infectious Disease Consultants/Denver, CO/Etats-Unis (7 aut.); Hôpital Pitié-Salpêtrière/Paris/France (8 aut.); Hospital Clinic I Provincial de Barcelona/Barcelona/Espagne (9 aut.); Hospital Universitario La Paz, Instituto de Investigación Hospital Universitario La Paz/Madrid/Espagne (10 aut.); St Stephen's AIDSTrust/ Crusaid Research Institute/London/Royaume-Uni (11 aut.); Merck Research Laboratories/North Wales, PA/Etats-Unis (12 aut., 13 aut., 14 aut., 15 aut., 16 aut., 17 aut., 18 aut., 19 aut., 20 aut., 21 aut., 22 aut., 23 aut., 24 aut.)
Publication en série; Niveau analytique
Lancet. Infectious diseases : (print); ISSN 1473-3099; Royaume-Uni; Da. 2011; Vol. 11; No. 12; Pp. 907-915; Bibl. 28 ref.AnglaisBackground Twice-daily raltegravir with once-daily tenofovir-emtricitabine is an effective initial antiretroviral regimen for patients with HIV-1. On the basis of pharmacokinetic data suggesting efficacy of once-daily raltegravir and because adherence is often improved with once-daily dosing, we aimed to compare these dosing schedules. Methods In our international, double-blind, randomised, phase 3 non-inferiority study, we enrolled antiretroviral-naive patients with HIV RNA loads of more than 5000 copies per mL and no baseline resistance to tenofovir or emtricitabine at 83 centres worldwide. We randomly allocated patients (1:1) by use of a computer-generated sequence to receive raltegravir once daily (two 400 mg tablets taken together every 24 h), or twice daily (one 400 mg tablet every 12 h), both in combination with once-daily co-formulated tenofovir 300 mg plus emtricitabine 200 mg. The primary outcome was virological response at 48 weeks (viral RNA loads <50 copies per mL) in patients who received at least one dose of study drug, counting non-completers as failure. We assessed non-inferiority in terms of the proportion of patients in both treatment groups who achieved the primary outcome, with a non-inferiority margin of -10%. This study is registered with ClinicalTrials.gov, number NCT00745823. Findings From Oct 15, 2008, to Nov 2, 2009, we randomly allocated 775 patients, of whom 382 (99%) of 386 patients in the once-daily group and 388 (99%) of 389 in the twice-daily group received at least one dose of study drug. At baseline, 304 (39%) of 770 treated patients had viral loads of more than 100000 copies per mL and 188 (24%) had CD4 cell counts of fewer than 200 cells per μL. 318 (83%) of 382 patients in the once-daily group had virological response compared with 343 (89%) of 386 in the twice-daily group (difference -5.7%, 95% CI -10.7 to -0.83; p=0.044). Serious adverse events were reported in 26 (7%) of 382 once-daily recipients and 40 (10%) of 388 twice-daily recipients, and adverse events leading to discontinuation occurred in four (1%) patients in each group. Interpretation Despite high response rates with both regimens, once-daily raltegravir cannot be recommended in place of twice-daily dosing. Funding Merck.002B05C02D; 002B02S05; 002B06D01SIDA; Raltégravir; Homme; Virus HIV1; Antiviral; AntirétroviralVirose; Infection; Virus immunodéficience humaine; Lentivirus; Retroviridae; Virus; Inhibiteur de l'intégrase; Immunodéficit; Immunopathologie; Inhibiteur de transfert de brinsAIDS; Raltegravir; Human; HIV-1 virus; Antiviral; Antiretroviral agentViral disease; Infection; Human immunodeficiency virus; Lentivirus; Retroviridae; Virus; Integrase inhibitor; Immune deficiency; ImmunopathologySIDA; Raltegravir; Hombre; HIV-1 virus; Antiviral; AntiretroviralINIST-27478.35400050736801008012-0022260 001B36 La relation complexe entre l'élevage et la forêt en Amazonie brésilienne: une approche par la modélisation multi-agentsPierre BommelCirad UPR Green Campus international de Baillarguet TAC-4734398 MontpellierFRA1 aut.5 aut.Université de Brasília Faculté de technologie UnB - FT Campus universitàrio Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA1 aut.Thierry BonaudoAgroParisTech Élevage et environnement 16, rue Claude Bernard75231 ParisFRA2 aut.Tienne BarbosaEmbrapa Amazônia Oriental Trav. Dr. Enéas Pinheiro CEP 66095-100 Caixa Postal48 BelémBRA3 aut.Jonas Bastos Da VeigaIDESP 1461, Rua MunicipalidadeCEP: 66050 - 350 Para BelemBRA4 aut.Manuela Vieira PakCirad UPR Green Campus international de Baillarguet TAC-4734398 MontpellierFRA1 aut.5 aut.Jean-François TourrandCirad GIP IFRA Inra-Cirad Cirad Drs 04, avenue Agropolis34398 MontpellierFRA6 aut.12-00232592010PASCAL 12-0023259 INISTPascal:12-0023259000D581166-7699Agricultures : (Montrouge)Agricultures : (Montrouge)Amazon BasinBovineBrazilDeforestationExtensive farmingExtensive rearingFarming systemForestsLivestockModelingMultiagent systemRural environmentTerritoryElevage extensifAgriculture extensiveSystème exploitation agricoleTerritoireMilieu ruralForêtModélisationSystème multiagentDéboisementBétailBovinBassin AmazoneBrésil
En Amazonie, l'élevage bovin contribue à la construction d'un nouveau territoire du fait et en dépit des impacts qu'il a sur un écosystème forestier dont la préservation fait la quasi-unanimité. Il existe en effet un profond fossé entre d'une part des acteurs locaux, pionniers à la recherche de meilleures conditions de vie, pour lesquels la forêt est une simple réserve de fertilité et, d'autre part, la communauté internationale soucieuse des impacts environnementaux de cette déforestation à grande échelle. Nous avons conçu un système multi-agents (SMA) qui permet de rendre compte des stratégies des éleveurs et agriculteurs qui sont les acteurs clés de cette déforestation, et d'en simuler les impacts. Nos résultats éclairent d'un jour nouveau les questions et enjeux relatifs à l'intensification agroécologique et l'élaboration de politiques publiques durables pour le développement des fronts pionniers sur la Transamazonienne. Nos travaux ouvrent de nouvelles perspectives pour le partage d'information entre leurs diverses parties prenantes. Bien que conçu pour représenter des dynamiques locales, le modèle apparaît suffisamment générique pour être appliqué à d'autres situations amazoniennes.
1166-7699Agricultures : (Montrouge)192La relation complexe entre l'élevage et la forêt en Amazonie brésilienne: une approche par la modélisation multi-agentsTransformations des systèmes d'élevage extensif dans les territoires rurauxBOMMEL (Pierre)BONAUDO (Thierry)BARBOSA (Tienne)BASTOS DA VEIGA (Jonas)VIEIRA PAK (Manuela)TOURRAND (Jean-François)GIBON (Annick)ed.ICKOWICZ (Alexandre)ed.Cirad UPR Green Campus international de Baillarguet TAC-4734398 MontpellierFRA1 aut.5 aut.Université de Brasília Faculté de technologie UnB - FT Campus universitàrio Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA1 aut.AgroParisTech Élevage et environnement 16, rue Claude Bernard75231 ParisFRA2 aut.Embrapa Amazônia Oriental Trav. Dr. Enéas Pinheiro CEP 66095-100 Caixa Postal48 BelémBRA3 aut.IDESP 1461, Rua MunicipalidadeCEP: 66050 - 350 Para BelemBRA4 aut.Cirad GIP IFRA Inra-Cirad Cirad Drs 04, avenue Agropolis34398 MontpellierFRA6 aut.Inra, UMR 1201 Dynator, BP 5262731326 Castanet-TolosanFRA1 aut.Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala34060 MontpellierFRA2 aut.104-1112010FREengINIST271053540001815582100400000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0023259PAAgricultures : (Montrouge)FRAThe complex relationship between cattle ranching and the forest in Brazilian Amazonia. A multiagent modelling approachChanges in extensive livestock farming systems in rural territoriesEn Amazonie, l'élevage bovin contribue à la construction d'un nouveau territoire du fait et en dépit des impacts qu'il a sur un écosystème forestier dont la préservation fait la quasi-unanimité. Il existe en effet un profond fossé entre d'une part des acteurs locaux, pionniers à la recherche de meilleures conditions de vie, pour lesquels la forêt est une simple réserve de fertilité et, d'autre part, la communauté internationale soucieuse des impacts environnementaux de cette déforestation à grande échelle. Nous avons conçu un système multi-agents (SMA) qui permet de rendre compte des stratégies des éleveurs et agriculteurs qui sont les acteurs clés de cette déforestation, et d'en simuler les impacts. Nos résultats éclairent d'un jour nouveau les questions et enjeux relatifs à l'intensification agroécologique et l'élaboration de politiques publiques durables pour le développement des fronts pionniers sur la Transamazonienne. Nos travaux ouvrent de nouvelles perspectives pour le partage d'information entre leurs diverses parties prenantes. Bien que conçu pour représenter des dynamiques locales, le modèle apparaît suffisamment générique pour être appliqué à d'autres situations amazoniennes.002A36C03002A32C01B2002A33Elevage extensif01Extensive rearing01Crianza extensiva01Agriculture extensive02Extensive farming02Agricultura extensiva02Système exploitation agricole03Farming system03Sistema de explotación agrícola03Territoire04Territory04Territorio04Milieu rural05Rural environment05Medio rural05Forêt06Forests06Bosque06Modélisation07Modeling07Modelización07Système multiagent08Multiagent system08Sistema multiagente08Déboisement09Deforestation09Deforestación09Bétail10Livestock10Ganado10Bovin11Bovine11Bovino11Bassin AmazoneNG20Amazon BasinNG20Cuenca AmazonasNG20BrésilNG21BrazilNG21BrasilNG21ArtiodactylaNSArtiodactylaNSArtiodactylaNSUngulataNSUngulataNSUngulataNSMammaliaNSMammaliaNSMammaliaNSVertebrataNSVertebrataNSVertebrataNSAmérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGAnimal élevage31Farming animal31Animal cría31Zone tropicale59Tropical zone59Zona tropical59009OTOOTOPASCAL 12-0023259 INISTLa relation complexe entre l'élevage et la forêt en Amazonie brésilienne: une approche par la modélisation multi-agents(The complex relationship between cattle ranching and the forest in Brazilian Amazonia. A multiagent modelling approach)BOMMEL (Pierre); BONAUDO (Thierry); BARBOSA (Tienne); BASTOS DA VEIGA (Jonas); VIEIRA PAK (Manuela); TOURRAND (Jean-François); GIBON (Annick); ICKOWICZ (Alexandre)Cirad UPR Green Campus international de Baillarguet TAC-47/34398 Montpellier/France (1 aut., 5 aut.); Université de Brasília Faculté de technologie UnB - FT Campus universitàrio Darcy Ribeiro Asa Norte/70.910-900 Brasilia/Brésil (1 aut.); AgroParisTech Élevage et environnement 16, rue Claude Bernard/75231 Paris/France (2 aut.); Embrapa Amazônia Oriental Trav. Dr. Enéas Pinheiro CEP 66095-100 Caixa Postal/48 Belém/Brésil (3 aut.); IDESP 1461, Rua Municipalidade/CEP: 66050 - 350 Para Belem/Brésil (4 aut.); Cirad GIP IFRA Inra-Cirad Cirad Drs 04, avenue Agropolis/34398 Montpellier/France (6 aut.); Inra, UMR 1201 Dynator, BP 52627/31326 Castanet-Tolosan/France (1 aut.); Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala/34060 Montpellier/France (2 aut.)
Publication en série; Niveau analytique
Agricultures : (Montrouge); ISSN 1166-7699; France; Da. 2010; Vol. 19; No. 2; Pp. 104-111; Abs. anglais; Bibl. 1/4 p.FrançaisEn Amazonie, l'élevage bovin contribue à la construction d'un nouveau territoire du fait et en dépit des impacts qu'il a sur un écosystème forestier dont la préservation fait la quasi-unanimité. Il existe en effet un profond fossé entre d'une part des acteurs locaux, pionniers à la recherche de meilleures conditions de vie, pour lesquels la forêt est une simple réserve de fertilité et, d'autre part, la communauté internationale soucieuse des impacts environnementaux de cette déforestation à grande échelle. Nous avons conçu un système multi-agents (SMA) qui permet de rendre compte des stratégies des éleveurs et agriculteurs qui sont les acteurs clés de cette déforestation, et d'en simuler les impacts. Nos résultats éclairent d'un jour nouveau les questions et enjeux relatifs à l'intensification agroécologique et l'élaboration de politiques publiques durables pour le développement des fronts pionniers sur la Transamazonienne. Nos travaux ouvrent de nouvelles perspectives pour le partage d'information entre leurs diverses parties prenantes. Bien que conçu pour représenter des dynamiques locales, le modèle apparaît suffisamment générique pour être appliqué à d'autres situations amazoniennes.002A36C03; 002A32C01B2; 002A33Elevage extensif; Agriculture extensive; Système exploitation agricole; Territoire; Milieu rural; Forêt; Modélisation; Système multiagent; Déboisement; Bétail; Bovin; Bassin Amazone; BrésilArtiodactyla; Ungulata; Mammalia; Vertebrata; Amérique du Sud; Amérique; Animal élevage; Zone tropicaleExtensive rearing; Extensive farming; Farming system; Territory; Rural environment; Forests; Modeling; Multiagent system; Deforestation; Livestock; Bovine; Amazon Basin; BrazilArtiodactyla; Ungulata; Mammalia; Vertebrata; South America; America; Farming animal; Tropical zoneCrianza extensiva; Agricultura extensiva; Sistema de explotación agrícola; Territorio; Medio rural; Bosque; Modelización; Sistema multiagente; Deforestación; Ganado; Bovino; Cuenca Amazonas; BrasilINIST-27105.35400018155821004012-0023259 001B37 Facteurs de transformation des systèmes d'élevage extensifs des territoires: étude comparée des dynamiques locales sur trois continentsAlexandre IckowiczCirad, UMR ERRC, Campus Montpellier SupAgro-Inra, 2, place Place Viala34060 MontpellierFRA1 aut.Alassane BahEcole supérieure polytechnique PPZS/UMI UMMISCO 209 Département génie informatique Université Cheikh Anta Diop de Dakar BP 15915Dakar-FannSEN2 aut.Pierre BommelCirad, Université de Brasilia, Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte70.910-900, BrasiliaBRA3 aut.Jean-Philippe ChoisisInra, UMR Dynafor, Centre de Toulouse, Chemin de Borde Rouge, BP 5262731326 Castanet-TolosanFRA4 aut.6 aut.Michel EtienneInra, UR Ecodéveloppement, Site Agroparc84914 AvignonFRA5 aut.7 aut.Annick GibonInra, UMR Dynafor, Centre de Toulouse, Chemin de Borde Rouge, BP 5262731326 Castanet-TolosanFRA4 aut.6 aut.Jacques LasseurInra, UR Ecodéveloppement, Site Agroparc84914 AvignonFRA5 aut.7 aut.Hermes MoralesInstituto Plan AgropecuarioMontevideoURY8 aut.Ibra ToureCirad, URP 68 PPZS, ISRA-LNERV, Route de Front de Terre, BP 2057Dakar HannSEN9 aut.Jean-François TourrandCirad, IFRAI, Avenue Agropolis-TA 179/0434398 MontpellierFRA10 aut.12-00232632010PASCAL 12-0023263 INISTPascal:12-0023263000D571166-7699Agricultures : (Montrouge)Agricultures : (Montrouge)Comparative studyDynamic characteristicExtensive farmingExtensive rearingFarming systemLand useLivestockProduction systemRural environmentSystem analysisTerritoryElevage extensifAgriculture extensiveSystème exploitation agricoleTerritoireMilieu ruralSystème productionEtude comparativeAnalyse systèmeCaractéristique dynamiqueBétailOccupation sol
Depuis plus d'une décennie, la globalisation des enjeux environnementaux, économiques et sociaux induit de rapides transformations du monde agricole et des territoires ruraux. Celles-ci posent en particulier la question de l'avenir des systèmes d'élevage extensifs, face au défi du doublement attendu des productions animales d'ici 2050, tout en préservant l'environnement. Afin de mieux comprendre et accompagner ces processus de transformation, une analyse comparative des dynamiques des systèmes d'élevage et des territoires a été réalisée à partir de sept études de cas sur trois continents sur la base d'une grille de lecture commune. Les facteurs globaux (démographie, environnement, marchés) pèsent sur l'ensemble des territoires d'élevage, mais leurs impacts sont modulés de manière spécifique par des facteurs locaux: culture, histoire, enclavement, projets locaux et politiques publiques. Cependant les processus de transformation sont comparables et l'élevage extensif est souvent sous pression, notamment foncière et économique, face aux activités alternatives qui se développent sur les territoires d'élevage. Pour évaluer équitablement et de façon intégrée le rôle de l'élevage dans le développement des territoires, il est nécessaire de mieux qualifier et de quantifier ses différentes fonctions qui sont complexes car multi-échelles sur les plans spatial et temporel.
1166-7699Agricultures : (Montrouge)192Facteurs de transformation des systèmes d'élevage extensifs des territoires: étude comparée des dynamiques locales sur trois continentsTransformations des systèmes d'élevage extensif dans les territoires rurauxICKOWICZ (Alexandre)BAH (Alassane)BOMMEL (Pierre)CHOISIS (Jean-Philippe)ETIENNE (Michel)GIBON (Annick)LASSEUR (Jacques)MORALES (Hermes)TOURE (Ibra)TOURRAND (Jean-François)GIBON (Annick)ed.ICKOWICZ (Alexandre)ed.Cirad, UMR ERRC, Campus Montpellier SupAgro-Inra, 2, place Place Viala34060 MontpellierFRA1 aut.Ecole supérieure polytechnique PPZS/UMI UMMISCO 209 Département génie informatique Université Cheikh Anta Diop de Dakar BP 15915Dakar-FannSEN2 aut.Cirad, Université de Brasilia, Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte70.910-900, BrasiliaBRA3 aut.Inra, UMR Dynafor, Centre de Toulouse, Chemin de Borde Rouge, BP 5262731326 Castanet-TolosanFRA4 aut.6 aut.Inra, UR Ecodéveloppement, Site Agroparc84914 AvignonFRA5 aut.7 aut.Instituto Plan AgropecuarioMontevideoURY8 aut.Cirad, URP 68 PPZS, ISRA-LNERV, Route de Front de Terre, BP 2057Dakar HannSEN9 aut.Cirad, IFRAI, Avenue Agropolis-TA 179/0434398 MontpellierFRA10 aut.Inra, UMR 1201 Dynator, BP 5262731326 Castanet-TolosanFRA1 aut.Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala34060 MontpellierFRA2 aut.127-1342010FREengINIST271053540001815582100700000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0023263PSYAAgricultures : (Montrouge)FRAOngoing change in extensive livestock systems: comparative analysis of local dynamics at the small region level on three continentsChanges in extensive livestock farming systems in rural territoriesDepuis plus d'une décennie, la globalisation des enjeux environnementaux, économiques et sociaux induit de rapides transformations du monde agricole et des territoires ruraux. Celles-ci posent en particulier la question de l'avenir des systèmes d'élevage extensifs, face au défi du doublement attendu des productions animales d'ici 2050, tout en préservant l'environnement. Afin de mieux comprendre et accompagner ces processus de transformation, une analyse comparative des dynamiques des systèmes d'élevage et des territoires a été réalisée à partir de sept études de cas sur trois continents sur la base d'une grille de lecture commune. Les facteurs globaux (démographie, environnement, marchés) pèsent sur l'ensemble des territoires d'élevage, mais leurs impacts sont modulés de manière spécifique par des facteurs locaux: culture, histoire, enclavement, projets locaux et politiques publiques. Cependant les processus de transformation sont comparables et l'élevage extensif est souvent sous pression, notamment foncière et économique, face aux activités alternatives qui se développent sur les territoires d'élevage. Pour évaluer équitablement et de façon intégrée le rôle de l'élevage dans le développement des territoires, il est nécessaire de mieux qualifier et de quantifier ses différentes fonctions qui sont complexes car multi-échelles sur les plans spatial et temporel.002A36C03002A32C01B2Elevage extensif01Extensive rearing01Crianza extensiva01Agriculture extensive02Extensive farming02Agricultura extensiva02Système exploitation agricole03Farming system03Sistema de explotación agrícola03Territoire04Territory04Territorio04Milieu rural05Rural environment05Medio rural05Système production06Production system06Sistema producción06Etude comparative07Comparative study07Estudio comparativo07Analyse système08System analysis08Análisis sistema08Caractéristique dynamique09Dynamic characteristic09Característica dinámica09Bétail10Livestock10Ganado10Occupation sol28Land use28Ocupación terreno28Animal élevage31Farming animal31Animal cría31009OTOOTOPASCAL 12-0023263 INISTFacteurs de transformation des systèmes d'élevage extensifs des territoires: étude comparée des dynamiques locales sur trois continents(Ongoing change in extensive livestock systems: comparative analysis of local dynamics at the small region level on three continents)ICKOWICZ (Alexandre); BAH (Alassane); BOMMEL (Pierre); CHOISIS (Jean-Philippe); ETIENNE (Michel); GIBON (Annick); LASSEUR (Jacques); MORALES (Hermes); TOURE (Ibra); TOURRAND (Jean-François); GIBON (Annick); ICKOWICZ (Alexandre)Cirad, UMR ERRC, Campus Montpellier SupAgro-Inra, 2, place Place Viala/34060 Montpellier/France (1 aut.); Ecole supérieure polytechnique PPZS/UMI UMMISCO 209 Département génie informatique Université Cheikh Anta Diop de Dakar BP 15915/Dakar-Fann/Sénégal (2 aut.); Cirad, Université de Brasilia, Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte/70.910-900, Brasilia/Brésil (3 aut.); Inra, UMR Dynafor, Centre de Toulouse, Chemin de Borde Rouge, BP 52627/31326 Castanet-Tolosan/France (4 aut., 6 aut.); Inra, UR Ecodéveloppement, Site Agroparc/84914 Avignon/France (5 aut., 7 aut.); Instituto Plan Agropecuario/Montevideo/Uruguay (8 aut.); Cirad, URP 68 PPZS, ISRA-LNERV, Route de Front de Terre, BP 2057/Dakar Hann/Sénégal (9 aut.); Cirad, IFRAI, Avenue Agropolis-TA 179/04/34398 Montpellier/France (10 aut.); Inra, UMR 1201 Dynator, BP 52627/31326 Castanet-Tolosan/France (1 aut.); Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala/34060 Montpellier/France (2 aut.)
Publication en série; Synthèse; Niveau analytique
Agricultures : (Montrouge); ISSN 1166-7699; France; Da. 2010; Vol. 19; No. 2; Pp. 127-134; Abs. anglais; Bibl. 3/4 p.FrançaisDepuis plus d'une décennie, la globalisation des enjeux environnementaux, économiques et sociaux induit de rapides transformations du monde agricole et des territoires ruraux. Celles-ci posent en particulier la question de l'avenir des systèmes d'élevage extensifs, face au défi du doublement attendu des productions animales d'ici 2050, tout en préservant l'environnement. Afin de mieux comprendre et accompagner ces processus de transformation, une analyse comparative des dynamiques des systèmes d'élevage et des territoires a été réalisée à partir de sept études de cas sur trois continents sur la base d'une grille de lecture commune. Les facteurs globaux (démographie, environnement, marchés) pèsent sur l'ensemble des territoires d'élevage, mais leurs impacts sont modulés de manière spécifique par des facteurs locaux: culture, histoire, enclavement, projets locaux et politiques publiques. Cependant les processus de transformation sont comparables et l'élevage extensif est souvent sous pression, notamment foncière et économique, face aux activités alternatives qui se développent sur les territoires d'élevage. Pour évaluer équitablement et de façon intégrée le rôle de l'élevage dans le développement des territoires, il est nécessaire de mieux qualifier et de quantifier ses différentes fonctions qui sont complexes car multi-échelles sur les plans spatial et temporel.002A36C03; 002A32C01B2Elevage extensif; Agriculture extensive; Système exploitation agricole; Territoire; Milieu rural; Système production; Etude comparative; Analyse système; Caractéristique dynamique; Bétail; Occupation solAnimal élevageExtensive rearing; Extensive farming; Farming system; Territory; Rural environment; Production system; Comparative study; System analysis; Dynamic characteristic; Livestock; Land useFarming animalCrianza extensiva; Agricultura extensiva; Sistema de explotación agrícola; Territorio; Medio rural; Sistema producción; Estudio comparativo; Análisis sistema; Característica dinámica; Ganado; Ocupación terrenoINIST-27105.35400018155821007012-0023263 001B38 Élaboration participative de modèles et de scénarios: une entrée pour analyser la coévolution des systèmes d'élevage extensif et des territoiresGrégoire LeclercCirad UR Green LERG/ESP Campus international de Baillarguet TAC-4734398 MontpellierFRA1 aut.Pierre BommelCirad UR Green Université de Brasilia Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA2 aut.Annick GibonInra, UR Ecodeveloppement31326 Castanet-TolosanFRA3 aut.Jacques LasseurInra UMR Dynafor Domaine Saint Paul84914 AvignonFRA4 aut.Hermes MoralesInstituto Plan Agropecuario Bvar Artigas 3802MontevideoURY5 aut.12-00232642010PASCAL 12-0023264 INISTPascal:12-0023264000D561166-7699Agricultures : (Montrouge)Agricultures : (Montrouge)CoevolutionCommunity participationExtensive farmingExtensive rearingFarming systemLivestockModelingProduction systemProspectiveRural environmentTerritoryElevage extensifAgriculture extensiveSystème exploitation agricoleTerritoireMilieu ruralCoévolutionSystème productionModélisationParticipation communautaireBétailProspective
La modélisation participative présente de fortes contraintes liées, d'une part, à l'expression et au partage de points de vue, et, d'autre part, à l'intelligibilité des modèles. Elle impose des simplifications et des arbitrages. Nous partons de l'hypothèse qu'un processus de prospective participative s'appuyant sur des simulations fait ressortir les principaux enjeux locaux ainsi que les stratégies d'adaptation les plus probables des individus et des groupes, et constitue une forme de validation des enjeux identifiés à d'autres échelles d'analyse. Nous examinons les démarches de prospective de cinq modélisations d'accompagnement (ComMod) centrées sur la coévolution des territoires et des systèmes d'élevage extensif (SEE) en France, au Sénégal, au Brésil, en Uruguay et en Argentine. Nous décomposons les démarches selon leurs objectifs ou leur visée, leur mode de construction et selon les paramètres liés aux modèles et aux simulations. L'analyse transversale contribue d'une part à améliorer la conception de futures expériences ComMod sur les SEE. D'autre part, elle révèle une définition plus opérationnelle des enjeux locaux, régionaux et globaux auxquels feront face les SEE de ces régions dans la prochaine décennie.
1166-7699Agricultures : (Montrouge)192Élaboration participative de modèles et de scénarios: une entrée pour analyser la coévolution des systèmes d'élevage extensif et des territoiresTransformations des systèmes d'élevage extensif dans les territoires rurauxLECLERC (Grégoire)BOMMEL (Pierre)GIBON (Annick)LASSEUR (Jacques)MORALES (Hermes)GIBON (Annick)ed.ICKOWICZ (Alexandre)ed.Cirad UR Green LERG/ESP Campus international de Baillarguet TAC-4734398 MontpellierFRA1 aut.Cirad UR Green Université de Brasilia Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA2 aut.Inra, UR Ecodeveloppement31326 Castanet-TolosanFRA3 aut.Inra UMR Dynafor Domaine Saint Paul84914 AvignonFRA4 aut.Instituto Plan Agropecuario Bvar Artigas 3802MontevideoURY5 aut.Inra, UMR 1201 Dynator, BP 5262731326 Castanet-TolosanFRA1 aut.Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala34060 MontpellierFRA2 aut.152-1592010FREengINIST271053540001815582101000000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0023264PSYAAgricultures : (Montrouge)FRAParticipatory modelling and foresight as an entry point for analyzing extensive livestock systems and territorial co-evolution processesChanges in extensive livestock farming systems in rural territoriesLa modélisation participative présente de fortes contraintes liées, d'une part, à l'expression et au partage de points de vue, et, d'autre part, à l'intelligibilité des modèles. Elle impose des simplifications et des arbitrages. Nous partons de l'hypothèse qu'un processus de prospective participative s'appuyant sur des simulations fait ressortir les principaux enjeux locaux ainsi que les stratégies d'adaptation les plus probables des individus et des groupes, et constitue une forme de validation des enjeux identifiés à d'autres échelles d'analyse. Nous examinons les démarches de prospective de cinq modélisations d'accompagnement (ComMod) centrées sur la coévolution des territoires et des systèmes d'élevage extensif (SEE) en France, au Sénégal, au Brésil, en Uruguay et en Argentine. Nous décomposons les démarches selon leurs objectifs ou leur visée, leur mode de construction et selon les paramètres liés aux modèles et aux simulations. L'analyse transversale contribue d'une part à améliorer la conception de futures expériences ComMod sur les SEE. D'autre part, elle révèle une définition plus opérationnelle des enjeux locaux, régionaux et globaux auxquels feront face les SEE de ces régions dans la prochaine décennie.002A36C03002A32C01B2Elevage extensif01Extensive rearing01Crianza extensiva01Agriculture extensive02Extensive farming02Agricultura extensiva02Système exploitation agricole03Farming system03Sistema de explotación agrícola03Territoire04Territory04Territorio04Milieu rural05Rural environment05Medio rural05Coévolution06Coevolution06Coevolución06Système production07Production system07Sistema producción07Modélisation08Modeling08Modelización08Participation communautaire09Community participation09Participación comunitaria09Bétail10Livestock10Ganado10Prospective28Prospective28Prospectiva28Animal élevage31Farming animal31Animal cría31009OTOOTOPASCAL 12-0023264 INISTÉlaboration participative de modèles et de scénarios: une entrée pour analyser la coévolution des systèmes d'élevage extensif et des territoires(Participatory modelling and foresight as an entry point for analyzing extensive livestock systems and territorial co-evolution processes)LECLERC (Grégoire); BOMMEL (Pierre); GIBON (Annick); LASSEUR (Jacques); MORALES (Hermes); GIBON (Annick); ICKOWICZ (Alexandre)Cirad UR Green LERG/ESP Campus international de Baillarguet TAC-47/34398 Montpellier/France (1 aut.); Cirad UR Green Université de Brasilia Faculté de technologie Campus Universitario Darcy Ribeiro Asa Norte/70.910-900 Brasilia/Brésil (2 aut.); Inra, UR Ecodeveloppement/31326 Castanet-Tolosan/France (3 aut.); Inra UMR Dynafor Domaine Saint Paul/84914 Avignon/France (4 aut.); Instituto Plan Agropecuario Bvar Artigas 3802/Montevideo/Uruguay (5 aut.); Inra, UMR 1201 Dynator, BP 52627/31326 Castanet-Tolosan/France (1 aut.); Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala/34060 Montpellier/France (2 aut.)
Publication en série; Synthèse; Niveau analytique
Agricultures : (Montrouge); ISSN 1166-7699; France; Da. 2010; Vol. 19; No. 2; Pp. 152-159; Abs. anglais; Bibl. 3/4 p.FrançaisLa modélisation participative présente de fortes contraintes liées, d'une part, à l'expression et au partage de points de vue, et, d'autre part, à l'intelligibilité des modèles. Elle impose des simplifications et des arbitrages. Nous partons de l'hypothèse qu'un processus de prospective participative s'appuyant sur des simulations fait ressortir les principaux enjeux locaux ainsi que les stratégies d'adaptation les plus probables des individus et des groupes, et constitue une forme de validation des enjeux identifiés à d'autres échelles d'analyse. Nous examinons les démarches de prospective de cinq modélisations d'accompagnement (ComMod) centrées sur la coévolution des territoires et des systèmes d'élevage extensif (SEE) en France, au Sénégal, au Brésil, en Uruguay et en Argentine. Nous décomposons les démarches selon leurs objectifs ou leur visée, leur mode de construction et selon les paramètres liés aux modèles et aux simulations. L'analyse transversale contribue d'une part à améliorer la conception de futures expériences ComMod sur les SEE. D'autre part, elle révèle une définition plus opérationnelle des enjeux locaux, régionaux et globaux auxquels feront face les SEE de ces régions dans la prochaine décennie.002A36C03; 002A32C01B2Elevage extensif; Agriculture extensive; Système exploitation agricole; Territoire; Milieu rural; Coévolution; Système production; Modélisation; Participation communautaire; Bétail; ProspectiveAnimal élevageExtensive rearing; Extensive farming; Farming system; Territory; Rural environment; Coevolution; Production system; Modeling; Community participation; Livestock; ProspectiveFarming animalCrianza extensiva; Agricultura extensiva; Sistema de explotación agrícola; Territorio; Medio rural; Coevolución; Sistema producción; Modelización; Participación comunitaria; Ganado; ProspectivaINIST-27105.35400018155821010012-0023264 001B39 Vers un métamodèle pour analyser les systèmes d'élevage extensifs et leurs interactions avec les territoiresPierre BommelCirad UPR GREEN Campus international de Baillarguet TAC-47 / F34398 MontpellierFRA1 aut.4 aut.Université de Brasilia, Faculté de technologie Campus Universitário Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA1 aut.Alassane BahEcole polytechnique de DakarDakarSEN2 aut.Michel EtienneInra Unité d'écodéveloppementAvignonFRA3 aut.Grégoire LeclercCirad UPR GREEN Campus international de Baillarguet TAC-47 / F34398 MontpellierFRA1 aut.4 aut.Claude MonteilUniversité de Toulouse, INPT-Ensat UMR 1201 DYNAFOR31326 Castanet TolosanFRA5 aut.Inra UMR 1201 DYNAFOR31326 Castanet TolosanFRA5 aut.Ibra ToureCirad URP Pastoralisme ISRA/LNERVMontpellierFRA6 aut.12-00232652010PASCAL 12-0023265 INISTPascal:12-0023265000D551166-7699Agricultures : (Montrouge)Agricultures : (Montrouge)Dynamic characteristicExtensive farmingExtensive rearingFarming systemLivestockMetamodelMultiagent systemProduction systemRural environmentTerritoryElevage extensifAgriculture extensiveSystème exploitation agricoleTerritoireMilieu ruralMétamodèleSystème productionCaractéristique dynamiqueSystème multiagentBétail
Nous proposons un canevas souple et adaptable pour faciliter la conception rapide de modèles permettant d'aborder la durabilité des systèmes d'élevage extensif à l'échelle de territoires. Ce métamodèle est le fruit d'une démarche de conception à partir de systèmes multi-agents (SMA) développés sur sept sites en Amérique latine, en France et au Sénégal. Il est composé de quatre modules: Agent, Collectivité, Espace, Végétation-troupeau. Nous les illustrons par les exemples tirés des modèles élaborés sur les différents sites. Le rôle de cet outil est discuté afin d'en montrer les avantages et les limites.
1166-7699Agricultures : (Montrouge)192Vers un métamodèle pour analyser les systèmes d'élevage extensifs et leurs interactions avec les territoiresTransformations des systèmes d'élevage extensif dans les territoires rurauxBOMMEL (Pierre)BAH (Alassane)ETIENNE (Michel)LECLERC (Grégoire)MONTEIL (Claude)TOURE (Ibra)GIBON (Annick)ed.ICKOWICZ (Alexandre)ed.Cirad UPR GREEN Campus international de Baillarguet TAC-47 / F34398 MontpellierFRA1 aut.4 aut.Université de Brasilia, Faculté de technologie Campus Universitário Darcy Ribeiro Asa Norte70.910-900 BrasiliaBRA1 aut.Ecole polytechnique de DakarDakarSEN2 aut.Inra Unité d'écodéveloppementAvignonFRA3 aut.Université de Toulouse, INPT-Ensat UMR 1201 DYNAFOR31326 Castanet TolosanFRA5 aut.Inra UMR 1201 DYNAFOR31326 Castanet TolosanFRA5 aut.Cirad URP Pastoralisme ISRA/LNERVMontpellierFRA6 aut.Inra, UMR 1201 Dynator, BP 5262731326 Castanet-TolosanFRA1 aut.Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala34060 MontpellierFRA2 aut.143-1512010FREengINIST271053540001815582100900000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0023265PSYAAgricultures : (Montrouge)FRATowards a metamodel to analyze the dynamics of livestock, resources and territoriesChanges in extensive livestock farming systems in rural territoriesNous proposons un canevas souple et adaptable pour faciliter la conception rapide de modèles permettant d'aborder la durabilité des systèmes d'élevage extensif à l'échelle de territoires. Ce métamodèle est le fruit d'une démarche de conception à partir de systèmes multi-agents (SMA) développés sur sept sites en Amérique latine, en France et au Sénégal. Il est composé de quatre modules: Agent, Collectivité, Espace, Végétation-troupeau. Nous les illustrons par les exemples tirés des modèles élaborés sur les différents sites. Le rôle de cet outil est discuté afin d'en montrer les avantages et les limites.002A36C03002A32C01B2Elevage extensif01Extensive rearing01Crianza extensiva01Agriculture extensive02Extensive farming02Agricultura extensiva02Système exploitation agricole03Farming system03Sistema de explotación agrícola03Territoire04Territory04Territorio04Milieu rural05Rural environment05Medio rural05Métamodèle06Metamodel06Metamodelo06Système production07Production system07Sistema producción07Caractéristique dynamique08Dynamic characteristic08Característica dinámica08Système multiagent09Multiagent system09Sistema multiagente09Bétail10Livestock10Ganado10Animal élevage31Farming animal31Animal cría31009OTOOTOPASCAL 12-0023265 INISTVers un métamodèle pour analyser les systèmes d'élevage extensifs et leurs interactions avec les territoires(Towards a metamodel to analyze the dynamics of livestock, resources and territories)BOMMEL (Pierre); BAH (Alassane); ETIENNE (Michel); LECLERC (Grégoire); MONTEIL (Claude); TOURE (Ibra); GIBON (Annick); ICKOWICZ (Alexandre)Cirad UPR GREEN Campus international de Baillarguet TAC-47 / F/34398 Montpellier/France (1 aut., 4 aut.); Université de Brasilia, Faculté de technologie Campus Universitário Darcy Ribeiro Asa Norte/70.910-900 Brasilia/Brésil (1 aut.); Ecole polytechnique de Dakar/Dakar/Sénégal (2 aut.); Inra Unité d'écodéveloppement/Avignon/France (3 aut.); Université de Toulouse, INPT-Ensat UMR 1201 DYNAFOR/31326 Castanet Tolosan/France (5 aut.); Inra UMR 1201 DYNAFOR/31326 Castanet Tolosan/France (5 aut.); Cirad URP Pastoralisme ISRA/LNERV/Montpellier/France (6 aut.); Inra, UMR 1201 Dynator, BP 52627/31326 Castanet-Tolosan/France (1 aut.); Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala/34060 Montpellier/France (2 aut.)
Publication en série; Synthèse; Niveau analytique
Agricultures : (Montrouge); ISSN 1166-7699; France; Da. 2010; Vol. 19; No. 2; Pp. 143-151; Abs. anglais; Bibl. 1/4 p.FrançaisNous proposons un canevas souple et adaptable pour faciliter la conception rapide de modèles permettant d'aborder la durabilité des systèmes d'élevage extensif à l'échelle de territoires. Ce métamodèle est le fruit d'une démarche de conception à partir de systèmes multi-agents (SMA) développés sur sept sites en Amérique latine, en France et au Sénégal. Il est composé de quatre modules: Agent, Collectivité, Espace, Végétation-troupeau. Nous les illustrons par les exemples tirés des modèles élaborés sur les différents sites. Le rôle de cet outil est discuté afin d'en montrer les avantages et les limites.002A36C03; 002A32C01B2Elevage extensif; Agriculture extensive; Système exploitation agricole; Territoire; Milieu rural; Métamodèle; Système production; Caractéristique dynamique; Système multiagent; BétailAnimal élevageExtensive rearing; Extensive farming; Farming system; Territory; Rural environment; Metamodel; Production system; Dynamic characteristic; Multiagent system; LivestockFarming animalCrianza extensiva; Agricultura extensiva; Sistema de explotación agrícola; Territorio; Medio rural; Metamodelo; Sistema producción; Característica dinámica; Sistema multiagente; GanadoINIST-27105.35400018155821009012-0023265 001B40 Modéliser le changement dans la gestion des terres de parcours en UruguayHermes Hermes GrosskopfInstituto Plan Agropecuario Bvar Artigas 3802Montevideo CP 11700URY1 aut.Pedro ArbeletcheEstaciôn Experimental Mario Cassinoni Facultad de Agronomía Universidad de la RepúblicaURY2 aut.Pierre BommelCirad, UR GreenMontpellierFRA3 aut.Université de Brasília Faculté de technologieBrasíliaBRA3 aut.Julio César BurgesEstación Experimental de Bordenave INTABordenaveARG4 aut.5 aut.Marcelo ChampredondeEstación Experimental de Bordenave INTABordenaveARG4 aut.5 aut.Jorge CorralInstituto de Computación Facultad de Ingeniería Universidad de la RepúlbicaURY6 aut.Jean Francois TourrandInra-Cirad GIP IFRA Agropolis34398 MontpellierFRA7 aut.12-00232662010PASCAL 12-0023266 INISTPascal:12-0023266000D541166-7699Agricultures : (Montrouge)Agricultures : (Montrouge)Extensive farmingExtensive rearingFarming systemGrasslandLivestockModelingMultiagent systemRange managementRangelandRural environmentSociologyTerritoryUruguayElevage extensifAgriculture extensiveSystème exploitation agricoleTerritoireMilieu ruralParcours (terrain)ModélisationAménagement pastoralPrairieBétailUruguaySociologieSystème multiagentPampa
Du fait de la globalisation des échanges, la société rurale uruguayenne se transforme profondément. Ces changements se répercutent sur l'élevage et la gestion de ses terres de parcours. Au travers d'une modélisation participative fondée sur les systèmes multi-agents, les auteurs présentent les facteurs de changement tels qu'ils sont perçus par les acteurs locaux: l'augmentation du prix des produits agricoles liée à la globalisation des échanges, mais également: l'internationalisation des centres de décision ; l'exode rural et l'attrait de la vie urbaine ; l'émergence des « pools de siembra », nouveaux acteurs de la vie rurale ; les changements biotechniques et climatiques. Ils montrent que la construction de modèles est également un outil de partage de l'information et de formation des acteurs locaux, et permet en outre de dégager des éléments de politique publique durable.
1166-7699Agricultures : (Montrouge)192Modéliser le changement dans la gestion des terres de parcours en UruguayTransformations des systèmes d'élevage extensif dans les territoires rurauxHERMES GROSSKOPF (Hermes)ARBELETCHE (Pedro)BOMMEL (Pierre)BURGES (Julio César)CHAMPREDONDE (Marcelo)CORRAL (Jorge)TOURRAND (Jean Francois)GIBON (Annick)ed.ICKOWICZ (Alexandre)ed.Instituto Plan Agropecuario Bvar Artigas 3802Montevideo CP 11700URY1 aut.Estaciôn Experimental Mario Cassinoni Facultad de Agronomía Universidad de la RepúblicaURY2 aut.Cirad, UR GreenMontpellierFRA3 aut.Université de Brasília Faculté de technologieBrasíliaBRA3 aut.Estación Experimental de Bordenave INTABordenaveARG4 aut.5 aut.Instituto de Computación Facultad de Ingeniería Universidad de la RepúlbicaURY6 aut.Inra-Cirad GIP IFRA Agropolis34398 MontpellierFRA7 aut.Inra, UMR 1201 Dynator, BP 5262731326 Castanet-TolosanFRA1 aut.Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala34060 MontpellierFRA2 aut.112-1172010FREengINIST271053540001815582100500000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0023266PAAgricultures : (Montrouge)FRAModeling rangeland management change in UruguayChanges in extensive livestock farming systems in rural territoriesDu fait de la globalisation des échanges, la société rurale uruguayenne se transforme profondément. Ces changements se répercutent sur l'élevage et la gestion de ses terres de parcours. Au travers d'une modélisation participative fondée sur les systèmes multi-agents, les auteurs présentent les facteurs de changement tels qu'ils sont perçus par les acteurs locaux: l'augmentation du prix des produits agricoles liée à la globalisation des échanges, mais également: l'internationalisation des centres de décision ; l'exode rural et l'attrait de la vie urbaine ; l'émergence des « pools de siembra », nouveaux acteurs de la vie rurale ; les changements biotechniques et climatiques. Ils montrent que la construction de modèles est également un outil de partage de l'information et de formation des acteurs locaux, et permet en outre de dégager des éléments de politique publique durable.002A36C03002A32C01B2Elevage extensif01Extensive rearing01Crianza extensiva01Agriculture extensive02Extensive farming02Agricultura extensiva02Système exploitation agricole03Farming system03Sistema de explotación agrícola03Territoire04Territory04Territorio04Milieu rural05Rural environment05Medio rural05Parcours (terrain)06Rangeland06Pastura (terreno)06Modélisation07Modeling07Modelización07Aménagement pastoral08Range management08Ordenación de pastos08Prairie09Grassland09Pradera09Bétail10Livestock10Ganado10UruguayNG20UruguayNG20UruguayNG20Sociologie28Sociology28Sociología28Système multiagent29Multiagent system29Sistema multiagente29PampaINC68Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGAnimal élevage31Farming animal31Animal cría31009OTOOTOPASCAL 12-0023266 INISTModéliser le changement dans la gestion des terres de parcours en Uruguay(Modeling rangeland management change in Uruguay)HERMES GROSSKOPF (Hermes); ARBELETCHE (Pedro); BOMMEL (Pierre); BURGES (Julio César); CHAMPREDONDE (Marcelo); CORRAL (Jorge); TOURRAND (Jean Francois); GIBON (Annick); ICKOWICZ (Alexandre)Instituto Plan Agropecuario Bvar Artigas 3802/Montevideo CP 11700/Uruguay (1 aut.); Estaciôn Experimental Mario Cassinoni Facultad de Agronomía Universidad de la República/Uruguay (2 aut.); Cirad, UR Green/Montpellier/France (3 aut.); Université de Brasília Faculté de technologie/Brasília/Brésil (3 aut.); Estación Experimental de Bordenave INTA/Bordenave/Argentine (4 aut., 5 aut.); Instituto de Computación Facultad de Ingeniería Universidad de la Repúlbica/Uruguay (6 aut.); Inra-Cirad GIP IFRA Agropolis/34398 Montpellier/France (7 aut.); Inra, UMR 1201 Dynator, BP 52627/31326 Castanet-Tolosan/France (1 aut.); Cirad, UMR 84 ERRC, Montpellier Supagro 2, place Viala/34060 Montpellier/France (2 aut.)
Publication en série; Niveau analytique
Agricultures : (Montrouge); ISSN 1166-7699; France; Da. 2010; Vol. 19; No. 2; Pp. 112-117; Abs. anglais; Bibl. 1/4 p.FrançaisDu fait de la globalisation des échanges, la société rurale uruguayenne se transforme profondément. Ces changements se répercutent sur l'élevage et la gestion de ses terres de parcours. Au travers d'une modélisation participative fondée sur les systèmes multi-agents, les auteurs présentent les facteurs de changement tels qu'ils sont perçus par les acteurs locaux: l'augmentation du prix des produits agricoles liée à la globalisation des échanges, mais également: l'internationalisation des centres de décision ; l'exode rural et l'attrait de la vie urbaine ; l'émergence des « pools de siembra », nouveaux acteurs de la vie rurale ; les changements biotechniques et climatiques. Ils montrent que la construction de modèles est également un outil de partage de l'information et de formation des acteurs locaux, et permet en outre de dégager des éléments de politique publique durable.002A36C03; 002A32C01B2Elevage extensif; Agriculture extensive; Système exploitation agricole; Territoire; Milieu rural; Parcours (terrain); Modélisation; Aménagement pastoral; Prairie; Bétail; Uruguay; Sociologie; Système multiagent; PampaAmérique du Sud; Amérique; Animal élevageExtensive rearing; Extensive farming; Farming system; Territory; Rural environment; Rangeland; Modeling; Range management; Grassland; Livestock; Uruguay; Sociology; Multiagent systemSouth America; America; Farming animalCrianza extensiva; Agricultura extensiva; Sistema de explotación agrícola; Territorio; Medio rural; Pastura (terreno); Modelización; Ordenación de pastos; Pradera; Ganado; Uruguay; Sociología; Sistema multiagenteINIST-27105.35400018155821005012-0023266 001B41 Preparing for introduction of a dengue vaccine: Recommendations from the 1 st Dengue v2V Asia-Pacific MeetingSAI KIT LAMOffice of the Vice-Chancellor, University of Malaya, Jalan Pantai Baru50603 Kuala LumpurMYS1 aut.Donald BurkeGraduate School of Public Health, University of PittsburghUSA2 aut.Maria Rosario CapedingResearch Institute for Tropical MedicinePHL3 aut.Chee Keong ChongCommunicable Diseases Division, Ministry of HealthMYS4 aut.Laurent CoudevilleSanofi PasteurMarcy I'EtoileFRA5 aut.10 aut.21 aut.22 aut.Jeremy FarrarOxford University Clinical Research Unit, Wellcome Trust Major Overseas ProgrammeNAM6 aut.Duane GublerDuke University School of Medicine/National University of SingaporeSGP7 aut.19 aut.Sri Rezeki HadinegoroTechnical advisory group for vaccination, Ministry of HealthIDN8 aut.Jeffrey HannaTropical Population Health UnitAUS9 aut.Jean LangSanofi PasteurMarcy I'EtoileFRA5 aut.10 aut.21 aut.22 aut.HAN LIM LEEWHO Collaborating Center for Vectors, Institute for Medical ResearchMYS11 aut.YEE SIN LEOTan Tock Seng HospitalSGP12 aut.CHAN QUANG LUONGHCMC Pasteur InstituteNAM13 aut.Richard MahoneyPediatric Dengue Vaccine Initiative, International Vaccine InstituteSeoulKOR14 aut.John McbrideJames Cook UniversityAUS15 aut.Jorge Mendez-GalvanHospital Infantil de Mexico Federico GómezMEX16 aut.LEE CHING NGNational Environmental AuthoritySGP17 aut.Suchitra NimmannityaMinistry of Public HealthTHA18 aut.ENG EONG OOIDuke University School of Medicine/National University of SingaporeSGP7 aut.19 aut.Donald ShepardSchneider Institutes for Health Policy, Brandeis UniversityUSA20 aut.Jaco SmitSanofi PasteurMarcy I'EtoileFRA5 aut.10 aut.21 aut.22 aut.Rémy TeyssouSanofi PasteurMarcy I'EtoileFRA5 aut.10 aut.21 aut.22 aut.Laurent ThomasEmergency Network at the University Hospital of Fort-de-FranceMTQ23 aut.Joseph TorresiDepartment of Infectious Diseases, Austin Center for Infection ResearchAUS24 aut.Pedro VasconcelosInstituto Evandro ChagasAnanindeuaBRA25 aut.Dewa Nyoman WirawanSchool of Public HealthIDN26 aut.Sutee YoksanCenter for Vaccine Development, Mahidol UniversityTHA27 aut.12-00242432011PASCAL 12-0024243 INISTPascal:12-0024243000D530264-410XVaccineVaccineAsiaDengue 1Public healthVaccineVaccinAsieSanté publiqueDengue 1
Infection with dengue virus is a major public health problem in the Asia-Pacific region and throughout tropical and sub-tropical regions of the world. Vaccination represents a major opportunity to control dengue and several candidate vaccines are in development. Experts in dengue and in vaccine introduction gathered for a two day meeting during which they examined the challenges inherent to the introduction of a dengue vaccine into the national immunisation programmes of countries of the Asia-Pacific. The aim was to develop a series of recommendations to reduce the delay between vaccine licensure and vaccine introduction. Major recommendations arising from the meeting included: ascertaining and publicising the full burden and cost of dengue; changing the perception of dengue in non-endemic countries to help generate global support for dengue vaccination; ensuring high quality active surveillance systems and diagnostics; and identifying sustainable sources of funding, both to support vaccine introduction and to maintain the vaccination programme. The attendees at the meeting were in agreement that with the introduction of an effective vaccine, dengue is a disease that could be controlled, and that in order to ensure a vaccine is introduced as rapidly as possible, there is a need to start preparing now.
0264-410XVACCDEVaccine2951Preparing for introduction of a dengue vaccine: Recommendations from the 1 st Dengue v2V Asia-Pacific MeetingSAI KIT LAMBURKE (Donald)CAPEDING (Maria Rosario)KEONG CHONG (Chee)COUDEVILLE (Laurent)FARRAR (Jeremy)GUBLER (Duane)REZEKI HADINEGORO (Sri)HANNA (Jeffrey)LANG (Jean)HAN LIM LEEYEE SIN LEOCHAN QUANG LUONGMAHONEY (Richard)MCBRIDE (John)MENDEZ-GALVAN (Jorge)LEE CHING NGNIMMANNITYA (Suchitra)ENG EONG OOISHEPARD (Donald)SMIT (Jaco)TEYSSOU (Rémy)THOMAS (Laurent)TORRESI (Joseph)VASCONCELOS (Pedro)WIRAWAN (Dewa Nyoman)YOKSAN (Sutee)Office of the Vice-Chancellor, University of Malaya, Jalan Pantai Baru50603 Kuala LumpurMYS1 aut.Graduate School of Public Health, University of PittsburghUSA2 aut.Research Institute for Tropical MedicinePHL3 aut.Communicable Diseases Division, Ministry of HealthMYS4 aut.Sanofi PasteurMarcy I'EtoileFRA5 aut.10 aut.21 aut.22 aut.Oxford University Clinical Research Unit, Wellcome Trust Major Overseas ProgrammeNAM6 aut.Duke University School of Medicine/National University of SingaporeSGP7 aut.19 aut.Technical advisory group for vaccination, Ministry of HealthIDN8 aut.Tropical Population Health UnitAUS9 aut.WHO Collaborating Center for Vectors, Institute for Medical ResearchMYS11 aut.Tan Tock Seng HospitalSGP12 aut.HCMC Pasteur InstituteNAM13 aut.Pediatric Dengue Vaccine Initiative, International Vaccine InstituteSeoulKOR14 aut.James Cook UniversityAUS15 aut.Hospital Infantil de Mexico Federico GómezMEX16 aut.National Environmental AuthoritySGP17 aut.Ministry of Public HealthTHA18 aut.Schneider Institutes for Health Policy, Brandeis UniversityUSA20 aut.Emergency Network at the University Hospital of Fort-de-FranceMTQ23 aut.Department of Infectious Diseases, Austin Center for Infection ResearchAUS24 aut.Instituto Evandro ChagasAnanindeuaBRA25 aut.School of Public HealthIDN26 aut.Center for Vaccine Development, Mahidol UniversityTHA27 aut.9417-94222011ENGINIST202893540005073687600300000© 2012 INIST-CNRS. All rights reserved.46 ref.12-0024243PAVaccineGBRInfection with dengue virus is a major public health problem in the Asia-Pacific region and throughout tropical and sub-tropical regions of the world. Vaccination represents a major opportunity to control dengue and several candidate vaccines are in development. Experts in dengue and in vaccine introduction gathered for a two day meeting during which they examined the challenges inherent to the introduction of a dengue vaccine into the national immunisation programmes of countries of the Asia-Pacific. The aim was to develop a series of recommendations to reduce the delay between vaccine licensure and vaccine introduction. Major recommendations arising from the meeting included: ascertaining and publicising the full burden and cost of dengue; changing the perception of dengue in non-endemic countries to help generate global support for dengue vaccination; ensuring high quality active surveillance systems and diagnostics; and identifying sustainable sources of funding, both to support vaccine introduction and to maintain the vaccination programme. The attendees at the meeting were in agreement that with the introduction of an effective vaccine, dengue is a disease that could be controlled, and that in order to ensure a vaccine is introduced as rapidly as possible, there is a need to start preparing now.002A05F04Vaccin05Vaccine05Vacuna05AsieNG06AsiaNG06AsiaNG06Santé publique07Public health07Salud pública07Dengue 114Dengue 114Dengue 114DengueDengueDengueArboviroseArbovirus diseaseArbovirosisViroseViral diseaseVirosisInfectionInfectionInfección009OTOOTOPASCAL 12-0024243 INISTPreparing for introduction of a dengue vaccine: Recommendations from the 1 st Dengue v2V Asia-Pacific MeetingSAI KIT LAM; BURKE (Donald); CAPEDING (Maria Rosario); KEONG CHONG (Chee); COUDEVILLE (Laurent); FARRAR (Jeremy); GUBLER (Duane); REZEKI HADINEGORO (Sri); HANNA (Jeffrey); LANG (Jean); HAN LIM LEE; YEE SIN LEO; CHAN QUANG LUONG; MAHONEY (Richard); MCBRIDE (John); MENDEZ-GALVAN (Jorge); LEE CHING NG; NIMMANNITYA (Suchitra); ENG EONG OOI; SHEPARD (Donald); SMIT (Jaco); TEYSSOU (Rémy); THOMAS (Laurent); TORRESI (Joseph); VASCONCELOS (Pedro); WIRAWAN (Dewa Nyoman); YOKSAN (Sutee)Office of the Vice-Chancellor, University of Malaya, Jalan Pantai Baru/50603 Kuala Lumpur/Malaisie (1 aut.); Graduate School of Public Health, University of Pittsburgh/Etats-Unis (2 aut.); Research Institute for Tropical Medicine/Philippines (3 aut.); Communicable Diseases Division, Ministry of Health/Malaisie (4 aut.); Sanofi Pasteur/Marcy I'Etoile/France (5 aut., 10 aut., 21 aut., 22 aut.); Oxford University Clinical Research Unit, Wellcome Trust Major Overseas Programme/Namibie (6 aut.); Duke University School of Medicine/National University of Singapore/Singapour (7 aut., 19 aut.); Technical advisory group for vaccination, Ministry of Health/Indonésie (8 aut.); Tropical Population Health Unit/Australie (9 aut.); WHO Collaborating Center for Vectors, Institute for Medical Research/Malaisie (11 aut.); Tan Tock Seng Hospital/Singapour (12 aut.); HCMC Pasteur Institute/Namibie (13 aut.); Pediatric Dengue Vaccine Initiative, International Vaccine Institute/Seoul/Corée, République de (14 aut.); James Cook University/Australie (15 aut.); Hospital Infantil de Mexico Federico Gómez/Mexique (16 aut.); National Environmental Authority/Singapour (17 aut.); Ministry of Public Health/Thaïlande (18 aut.); Schneider Institutes for Health Policy, Brandeis University/Etats-Unis (20 aut.); Emergency Network at the University Hospital of Fort-de-France/Martinique (23 aut.); Department of Infectious Diseases, Austin Center for Infection Research/Australie (24 aut.); Instituto Evandro Chagas/Ananindeua/Brésil (25 aut.); School of Public Health/Indonésie (26 aut.); Center for Vaccine Development, Mahidol University/Thaïlande (27 aut.)
Publication en série; Niveau analytique
Vaccine; ISSN 0264-410X; Coden VACCDE; Royaume-Uni; Da. 2011; Vol. 29; No. 51; Pp. 9417-9422; Bibl. 46 ref.AnglaisInfection with dengue virus is a major public health problem in the Asia-Pacific region and throughout tropical and sub-tropical regions of the world. Vaccination represents a major opportunity to control dengue and several candidate vaccines are in development. Experts in dengue and in vaccine introduction gathered for a two day meeting during which they examined the challenges inherent to the introduction of a dengue vaccine into the national immunisation programmes of countries of the Asia-Pacific. The aim was to develop a series of recommendations to reduce the delay between vaccine licensure and vaccine introduction. Major recommendations arising from the meeting included: ascertaining and publicising the full burden and cost of dengue; changing the perception of dengue in non-endemic countries to help generate global support for dengue vaccination; ensuring high quality active surveillance systems and diagnostics; and identifying sustainable sources of funding, both to support vaccine introduction and to maintain the vaccination programme. The attendees at the meeting were in agreement that with the introduction of an effective vaccine, dengue is a disease that could be controlled, and that in order to ensure a vaccine is introduced as rapidly as possible, there is a need to start preparing now.002A05F04Vaccin; Asie; Santé publique; Dengue 1Dengue; Arbovirose; Virose; InfectionVaccine; Asia; Public health; Dengue 1Dengue; Arbovirus disease; Viral disease; InfectionVacuna; Asia; Salud pública; Dengue 1INIST-20289.35400050736876003012-0024243 001B42 ISSN 1751-8725 Deterministic tool based on transmission line modelling and Kriging for optimal transmitter location in indoor wireless systemsA. Dalla RosaFederal Institute of Education, Science and Technology of Santa Catarina89813-000 ChapecóBRA1 aut.A. RaizerGrupo de Engenharia em Compatibilidade Eletromagnética - GEMCO, Universidade Federal de Santa Catarina - UFSC89840-040 FlorianópolisBRA2 aut.L. PichonLaboratoire de Genie Electrique de Paris, UMR 8507 CNRS, SUPELEC, Université Paris-Sud, Université Pierre et Curie, 77 rue Joliot-Curie91192 Gif-sur-YvetteFRA3 aut.12-00243122011PASCAL 12-0024312 INISTPascal:12-0024312000D521751-8725IET microwaves, antennas & propagation : (Print)AccuracyDeterministic approachIndoor installationInterpolationKrigingOn lineOn line processingOptimizationRobustnessTLM methodTransmitterTwo dimensional modelWireless telecommunicationApproche déterministeEn ligneTraitement en ligneMéthode TLMKrigeageOptimisationEmetteurInstallation intérieureTélécommunication sans filInterpolationPrécisionModèle 2 dimensionsRobustesse
This study proposes a deterministic tool based on the combination of the transmission line modelling method and a Kriging interpolation to search for optimal transmitter locations in indoor wireless systems. As a first step, the relevance of the technique is presented. Secondly, the methods are described based on their own formulations. Following, the methodology to combine the methods is presented where a simple case is used to exemplify the procedure and evaluate the accuracy. A two-dimensional (2D) complex case is presented to verify the robustness of the technique, and a 3D environment is studied to demonstrate the tool capability.
1751-8725513ISSN 1751-8725 Deterministic tool based on transmission line modelling and Kriging for optimal transmitter location in indoor wireless systemsDALLA'ROSA (A.)RAIZER (A.)PICHON (L.)Federal Institute of Education, Science and Technology of Santa Catarina89813-000 ChapecóBRA1 aut.Grupo de Engenharia em Compatibilidade Eletromagnética - GEMCO, Universidade Federal de Santa Catarina - UFSC89840-040 FlorianópolisBRA2 aut.Laboratoire de Genie Electrique de Paris, UMR 8507 CNRS, SUPELEC, Université Paris-Sud, Université Pierre et Curie, 77 rue Joliot-Curie91192 Gif-sur-YvetteFRA3 aut.1537-15452011ENGINIST7573H3540005073702300200000© 2012 INIST-CNRS. All rights reserved.19 ref.12-0024312PAIET microwaves, antennas & propagation : (Print)GBRThis study proposes a deterministic tool based on the combination of the transmission line modelling method and a Kriging interpolation to search for optimal transmitter locations in indoor wireless systems. As a first step, the relevance of the technique is presented. Secondly, the methods are described based on their own formulations. Following, the methodology to combine the methods is presented where a simple case is used to exemplify the procedure and evaluate the accuracy. A two-dimensional (2D) complex case is presented to verify the robustness of the technique, and a 3D environment is studied to demonstrate the tool capability.001D04B04EApproche déterministe01Deterministic approach01Enfoque determinista01En ligne02On line02En línea02Traitement en ligne03On line processing03Tratamiento en línea03Méthode TLM04TLM method04Método TLM04Krigeage05Kriging05Kriging05Optimisation06Optimization06Optimización06Emetteur07Transmitter07Emisor07Installation intérieure08Indoor installation08Instalación interior08Télécommunication sans fil09Wireless telecommunication09Telecomunicación sin hilo09Interpolation10Interpolation10Interpolación10Précision11Accuracy11Precisión11Modèle 2 dimensions12Two dimensional model12Modelo 2 dimensiones12Robustesse13Robustness13Robustez13009OTOOTOPASCAL 12-0024312 INISTISSN 1751-8725 Deterministic tool based on transmission line modelling and Kriging for optimal transmitter location in indoor wireless systemsDALLA'ROSA (A.); RAIZER (A.); PICHON (L.)Federal Institute of Education, Science and Technology of Santa Catarina/89813-000 Chapecó/Brésil (1 aut.); Grupo de Engenharia em Compatibilidade Eletromagnética - GEMCO, Universidade Federal de Santa Catarina - UFSC/89840-040 Florianópolis/Brésil (2 aut.); Laboratoire de Genie Electrique de Paris, UMR 8507 CNRS, SUPELEC, Université Paris-Sud, Université Pierre et Curie, 77 rue Joliot-Curie/91192 Gif-sur-Yvette/France (3 aut.)
Publication en série; Niveau analytique
IET microwaves, antennas & propagation : (Print); ISSN 1751-8725; Royaume-Uni; Da. 2011; Vol. 5; No. 13; Pp. 1537-1545; Bibl. 19 ref.AnglaisThis study proposes a deterministic tool based on the combination of the transmission line modelling method and a Kriging interpolation to search for optimal transmitter locations in indoor wireless systems. As a first step, the relevance of the technique is presented. Secondly, the methods are described based on their own formulations. Following, the methodology to combine the methods is presented where a simple case is used to exemplify the procedure and evaluate the accuracy. A two-dimensional (2D) complex case is presented to verify the robustness of the technique, and a 3D environment is studied to demonstrate the tool capability.001D04B04EApproche déterministe; En ligne; Traitement en ligne; Méthode TLM; Krigeage; Optimisation; Emetteur; Installation intérieure; Télécommunication sans fil; Interpolation; Précision; Modèle 2 dimensions; RobustesseDeterministic approach; On line; On line processing; TLM method; Kriging; Optimization; Transmitter; Indoor installation; Wireless telecommunication; Interpolation; Accuracy; Two dimensional model; RobustnessEnfoque determinista; En línea; Tratamiento en línea; Método TLM; Kriging; Optimización; Emisor; Instalación interior; Telecomunicación sin hilo; Interpolación; Precisión; Modelo 2 dimensiones; RobustezINIST-7573H.35400050737023002012-0024312 001B43 Substrate-Directable Heck Reactions with Arenediazonium Salts. The Regio- and Stereoselective Arylation of Allylamine Derivatives and Applications in the Synthesis of Naftifine and AbaminesPatricia PredigerInstituto de Quimica, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971Campinas, São PauloBRA1 aut.2 aut.4 aut.Lais Ferreira BarbosaInstituto de Quimica, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971Campinas, São PauloBRA1 aut.2 aut.4 aut.Yves GenissonUMR5068, CNRS-Universite Paul SabatierToulouseFRA3 aut.Carlos Roque Duarte CorreiaInstituto de Quimica, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971Campinas, São PauloBRA1 aut.2 aut.4 aut.12-00253492011PASCAL 12-0025349 INISTPascal:12-0025349000D510022-3263J. org. chem.Journal of organic chemistryAllylic compoundArylationBenzenic compoundBiological activityCatalytic reactionChemical synthesisComplexationDiazonium compoundsEthylenic compoundHeck reactionMild operating conditionsNaftifineOlefinPalladium complexRegioselectivityStereochemistryStereoselectivityTotal synthesisRéaction HeckRégiosélectivitéStéréosélectivitéArylationAllylamineSynthèse chimiqueComplexe de palladiumRéaction catalytiqueCondition opératoire modéréeStéréochimieComplexationOléfineComposé éthyléniqueComposé allyliqueSynthèse totaleActivité biologiqueNaftifineComposé du diazoniumComposé benzéniqueBenzènediazonium composéAbamine
The palladium-catalyzed, substrate-directable Heck-Matsuda reaction of allylamine derivatives with arenediazonium salts is reported. The reaction proceeds under mild conditions, with excellent regio- and stereochemical control as a function of coordinating groups present in the allylamine substrate. The distance between the olefin moiety and the carbonylic system seems to play a key role regarding the regiocontroL The method presents itself as robust, as simple to carry out, and with wide synthetic scope concerning the allylic substrates and the type of arenediazonium employed. The synthetic potential of the method is illustrated by the short total syntheses of the bioactive compounds naftifine, abamine, and abamine SG.
0022-3263JOCEAHJ. org. chem.7619Substrate-Directable Heck Reactions with Arenediazonium Salts. The Regio- and Stereoselective Arylation of Allylamine Derivatives and Applications in the Synthesis of Naftifine and AbaminesPREDIGER (Patricia)FERREIRA BARBOSA (Lais)GENISSON (Yves)DUARTE CORREIA (Carlos Roque)Instituto de Quimica, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971Campinas, São PauloBRA1 aut.2 aut.4 aut.UMR5068, CNRS-Universite Paul SabatierToulouseFRA3 aut.7737-77492011ENGINIST6023540005091711201000000© 2012 INIST-CNRS. All rights reserved.39 ref.12-0025349PAJournal of organic chemistryUSAThe palladium-catalyzed, substrate-directable Heck-Matsuda reaction of allylamine derivatives with arenediazonium salts is reported. The reaction proceeds under mild conditions, with excellent regio- and stereochemical control as a function of coordinating groups present in the allylamine substrate. The distance between the olefin moiety and the carbonylic system seems to play a key role regarding the regiocontroL The method presents itself as robust, as simple to carry out, and with wide synthetic scope concerning the allylic substrates and the type of arenediazonium employed. The synthetic potential of the method is illustrated by the short total syntheses of the bioactive compounds naftifine, abamine, and abamine SG.001C02B04001C03C03Réaction Heck01Heck reaction01Reacción Heck01Régiosélectivité02Regioselectivity02Regioselectividad02Stéréosélectivité03Stereoselectivity03Estereoselectividad03Arylation04Arylation04Arilación04AllylamineNKFR05Synthèse chimique06Chemical synthesis06Síntesis química06Complexe de palladium07Palladium complex07Paladio complejo07Réaction catalytique08Catalytic reaction08Reacción catalítica08Condition opératoire modérée09Mild operating conditions09Condición operatoria moderada09Stéréochimie10Stereochemistry10Estereoquímica10Complexation11Complexation11Complexación11Oléfine12Olefin12Olefina12Composé éthylénique13Ethylenic compound13Compuesto etilénico13Composé allylique14Allylic compound14Compuesto alílico14Synthèse totale15Total synthesis15Síntesis total15Activité biologique16Biological activity16Actividad biológica16NaftifineNKFR17NaftifineNKFR17NaftifinaNKFR17Composé du diazonium41Diazonium compounds41Diazonio compuesto41Composé benzénique42Benzenic compound42Compuesto bencénico42Benzènediazonium composéINC62AbamineINC63009PASCAL 12-0025349 INISTSubstrate-Directable Heck Reactions with Arenediazonium Salts. The Regio- and Stereoselective Arylation of Allylamine Derivatives and Applications in the Synthesis of Naftifine and AbaminesPREDIGER (Patricia); FERREIRA BARBOSA (Lais); GENISSON (Yves); DUARTE CORREIA (Carlos Roque)Instituto de Quimica, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971/Campinas, São Paulo/Brésil (1 aut., 2 aut., 4 aut.); UMR5068, CNRS-Universite Paul Sabatier/Toulouse/France (3 aut.)
Publication en série; Niveau analytique
Journal of organic chemistry; ISSN 0022-3263; Coden JOCEAH; Etats-Unis; Da. 2011; Vol. 76; No. 19; Pp. 7737-7749; Bibl. 39 ref.AnglaisThe palladium-catalyzed, substrate-directable Heck-Matsuda reaction of allylamine derivatives with arenediazonium salts is reported. The reaction proceeds under mild conditions, with excellent regio- and stereochemical control as a function of coordinating groups present in the allylamine substrate. The distance between the olefin moiety and the carbonylic system seems to play a key role regarding the regiocontroL The method presents itself as robust, as simple to carry out, and with wide synthetic scope concerning the allylic substrates and the type of arenediazonium employed. The synthetic potential of the method is illustrated by the short total syntheses of the bioactive compounds naftifine, abamine, and abamine SG.001C02B04; 001C03C03Réaction Heck; Régiosélectivité; Stéréosélectivité; Arylation; Allylamine; Synthèse chimique; Complexe de palladium; Réaction catalytique; Condition opératoire modérée; Stéréochimie; Complexation; Oléfine; Composé éthylénique; Composé allylique; Synthèse totale; Activité biologique; Naftifine; Composé du diazonium; Composé benzénique; Benzènediazonium composé; AbamineHeck reaction; Regioselectivity; Stereoselectivity; Arylation; Chemical synthesis; Palladium complex; Catalytic reaction; Mild operating conditions; Stereochemistry; Complexation; Olefin; Ethylenic compound; Allylic compound; Total synthesis; Biological activity; Naftifine; Diazonium compounds; Benzenic compoundReacción Heck; Regioselectividad; Estereoselectividad; Arilación; Síntesis química; Paladio complejo; Reacción catalítica; Condición operatoria moderada; Estereoquímica; Complexación; Olefina; Compuesto etilénico; Compuesto alílico; Síntesis total; Actividad biológica; Naftifina; Diazonio compuesto; Compuesto bencénicoINIST-602.35400050917112010012-0025349 001B44 Correlation among magnetic resonance imaging findings, prognostic factors for survival, and histological diagnosis of intrinsic brainstem lesions in childrenMarcos DellarettiDepartment of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.Department of Neurosurgery, Santa Casa Hospital, Federal University of Minas GeraisBelo HorizonteBRA1 aut.6 aut.Faculty of Medicine, Federal University of Minas GeraisBelo HorizonteBRA1 aut.5 aut.Gustavo TouzetDepartment of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.Nicolas ReynsDepartment of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.François DuboisDepartment of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.Sebasti O GusmaoFaculty of Medicine, Federal University of Minas GeraisBelo HorizonteBRA1 aut.5 aut.J Lio Leonardo Barbosa PereiraDepartment of Neurosurgery, Santa Casa Hospital, Federal University of Minas GeraisBelo HorizonteBRA1 aut.6 aut.Serge BlondDepartment of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.12-00265952011PASCAL 12-0026595 INISTPascal:12-0026595000D501933-0707J. neurosurg. Pediatrics Journal of neurosurgery. Pediatrics BiopsyChildDiagnosisNuclear magnetic resonance imagingPrognosisSurvivalTumorTumeurImagerie RMNPronosticSurvieDiagnosticEnfantBiopsie
Object. The aim of this study was to compare MR imaging characteristics with histopathological findings of intrinsic brainstem lesions and also to show the prognostic factors in patients with diffuse brainstem glioma. Methods. Between February 1988 and August 2007, 44 brainstem biopsies were performed at the Roger Salengro Hospital in Lille, France, in children with intrinsic brainstem lesions not amenable to excision. Twenty-six were female and 18 male, and the mean age was 6 years. Results. Histological evaluation revealed diffuse brainstem glioma in all patients with diffuse nonenhancing brainstem lesions. Diffuse brainstem glioma was found in 18 patients (90%) with diffuse enhancing brainstem lesions. Pathological entities different from diffuse glioma were verified in 2 patients (10%)-1 with ependymoma and 1 with ganglioglioma. In 4 of 5 patients with a focal nonenhancing brainstem lesion, the histopathological diagnosis was diffuse low-grade glioma. In 6 of 10 patients with focal enhancing brainstem lesion, the diagnosis was diffuse brainstem glioma, and pathological entities different from diffuse brainstem glioma were verified in 2 (20%), both with pilocytic astrocytoma. The mean 1-year actuarial survival rates for patients classified with low-grade and high-grade glioma were 80.4% ± 0.08% and 48.6% ± 0.14%, respectively. Conclusions. The impact of stereotactic biopsy on intrinsic brainstem lesions was greater in patients with MR imaging-documented enhancing lesions in whom the diagnosis of diffuse glioma was less frequent. Patients with low-grade glioma seem to have longer survival than those with high-grade glioma.
1933-0707J. neurosurg. Pediatrics 86Correlation among magnetic resonance imaging findings, prognostic factors for survival, and histological diagnosis of intrinsic brainstem lesions in childrenDELLARETTI (Marcos)TOUZET (Gustavo)REYNS (Nicolas)DUBOIS (François)GUSMAO (Sebastião)BARBOSA PEREIRA (Júlio Leonardo)BLOND (Serge)Department of Neurosurgery, CHRU Hôpital Roger SalengroLilleFRA1 aut.2 aut.3 aut.4 aut.7 aut.Department of Neurosurgery, Santa Casa Hospital, Federal University of Minas GeraisBelo HorizonteBRA1 aut.6 aut.Faculty of Medicine, Federal University of Minas GeraisBelo HorizonteBRA1 aut.5 aut.539-5432011ENGINIST6023S23540005059263400200000© 2012 INIST-CNRS. All rights reserved.19 ref.12-0026595PAJournal of neurosurgery. Pediatrics USAObject. The aim of this study was to compare MR imaging characteristics with histopathological findings of intrinsic brainstem lesions and also to show the prognostic factors in patients with diffuse brainstem glioma. Methods. Between February 1988 and August 2007, 44 brainstem biopsies were performed at the Roger Salengro Hospital in Lille, France, in children with intrinsic brainstem lesions not amenable to excision. Twenty-six were female and 18 male, and the mean age was 6 years. Results. Histological evaluation revealed diffuse brainstem glioma in all patients with diffuse nonenhancing brainstem lesions. Diffuse brainstem glioma was found in 18 patients (90%) with diffuse enhancing brainstem lesions. Pathological entities different from diffuse glioma were verified in 2 patients (10%)-1 with ependymoma and 1 with ganglioglioma. In 4 of 5 patients with a focal nonenhancing brainstem lesion, the histopathological diagnosis was diffuse low-grade glioma. In 6 of 10 patients with focal enhancing brainstem lesion, the diagnosis was diffuse brainstem glioma, and pathological entities different from diffuse brainstem glioma were verified in 2 (20%), both with pilocytic astrocytoma. The mean 1-year actuarial survival rates for patients classified with low-grade and high-grade glioma were 80.4% ± 0.08% and 48.6% ± 0.14%, respectively. Conclusions. The impact of stereotactic biopsy on intrinsic brainstem lesions was greater in patients with MR imaging-documented enhancing lesions in whom the diagnosis of diffuse glioma was less frequent. Patients with low-grade glioma seem to have longer survival than those with high-grade glioma.002B25JTumeur01Tumor01Tumor01Imagerie RMN09Nuclear magnetic resonance imaging09Imaginería RMN09Pronostic10Prognosis10Pronóstico10Survie11Survival11Sobrevivencia11Diagnostic12Diagnosis12Diagnóstico12Enfant13Child13Niño13Biopsie14Biopsy14Biopsia14HommeHumanHombre009OTOOTOPASCAL 12-0026595 INISTCorrelation among magnetic resonance imaging findings, prognostic factors for survival, and histological diagnosis of intrinsic brainstem lesions in childrenDELLARETTI (Marcos); TOUZET (Gustavo); REYNS (Nicolas); DUBOIS (François); GUSMAO (Sebastião); BARBOSA PEREIRA (Júlio Leonardo); BLOND (Serge)Department of Neurosurgery, CHRU Hôpital Roger Salengro/Lille/France (1 aut., 2 aut., 3 aut., 4 aut., 7 aut.); Department of Neurosurgery, Santa Casa Hospital, Federal University of Minas Gerais/Belo Horizonte/Brésil (1 aut., 6 aut.); Faculty of Medicine, Federal University of Minas Gerais/Belo Horizonte/Brésil (1 aut., 5 aut.)
Publication en série; Niveau analytique
Journal of neurosurgery. Pediatrics ; ISSN 1933-0707; Etats-Unis; Da. 2011; Vol. 8; No. 6; Pp. 539-543; Bibl. 19 ref.AnglaisObject. The aim of this study was to compare MR imaging characteristics with histopathological findings of intrinsic brainstem lesions and also to show the prognostic factors in patients with diffuse brainstem glioma. Methods. Between February 1988 and August 2007, 44 brainstem biopsies were performed at the Roger Salengro Hospital in Lille, France, in children with intrinsic brainstem lesions not amenable to excision. Twenty-six were female and 18 male, and the mean age was 6 years. Results. Histological evaluation revealed diffuse brainstem glioma in all patients with diffuse nonenhancing brainstem lesions. Diffuse brainstem glioma was found in 18 patients (90%) with diffuse enhancing brainstem lesions. Pathological entities different from diffuse glioma were verified in 2 patients (10%)-1 with ependymoma and 1 with ganglioglioma. In 4 of 5 patients with a focal nonenhancing brainstem lesion, the histopathological diagnosis was diffuse low-grade glioma. In 6 of 10 patients with focal enhancing brainstem lesion, the diagnosis was diffuse brainstem glioma, and pathological entities different from diffuse brainstem glioma were verified in 2 (20%), both with pilocytic astrocytoma. The mean 1-year actuarial survival rates for patients classified with low-grade and high-grade glioma were 80.4% ± 0.08% and 48.6% ± 0.14%, respectively. Conclusions. The impact of stereotactic biopsy on intrinsic brainstem lesions was greater in patients with MR imaging-documented enhancing lesions in whom the diagnosis of diffuse glioma was less frequent. Patients with low-grade glioma seem to have longer survival than those with high-grade glioma.002B25JTumeur; Imagerie RMN; Pronostic; Survie; Diagnostic; Enfant; BiopsieHommeTumor; Nuclear magnetic resonance imaging; Prognosis; Survival; Diagnosis; Child; BiopsyHumanTumor; Imaginería RMN; Pronóstico; Sobrevivencia; Diagnóstico; Niño; BiopsiaINIST-6023S2.35400050592634002012-0026595 001B45 Parental psychopathology and the risk of suicidal behavior in their offspring: results from the World Mental Health surveysO. GurejeDepartment of Psychiatry, University College HospitalIbadanNGA1 aut.2 aut.B. OladejiDepartment of Psychiatry, University College HospitalIbadanNGA1 aut.2 aut.I. HwangDepartment of Health Care Policy, Harvard Medical SchoolBoston, MAUSA3 aut.4 aut.5 aut.6 aut.W. T. ChiuDepartment of Health Care Policy, Harvard Medical SchoolBoston, MAUSA3 aut.4 aut.5 aut.6 aut.R. C. KesslerDepartment of Health Care Policy, Harvard Medical SchoolBoston, MAUSA3 aut.4 aut.5 aut.6 aut.N. A. SampsonDepartment of Health Care Policy, Harvard Medical SchoolBoston, MAUSA3 aut.4 aut.5 aut.6 aut.J. AlonsoHealth Services Research Unit, Institut Municipal d Investigació Mèdica (IMIM-Hospital del Mar); CIBER en Epidemiología y Salud Pública (CIBERESP)Barcelona, CataloniaESP7 aut.L. H. AndradeDepartment & Institute of Psychiatry, University of Sao Paulo, School of MedicineSao PauloBRA8 aut.A. BeautraisUniversity of Otago, Christchurch, Public Health and General PracticeChristchurchNZL9 aut.G. BorgesInstituto Nacional de Psiquiatria Ramon de la FuenteMexico CityMEX10 aut.E. BrometDepartment of Psychiatry, Stony Brook UniversityStony Brook, NYUSA11 aut.R. BruffaertsKatholieke Universiteit LeuvenLeuvenBEL12 aut.G. De GirolamoIRCCS Centro S. Giovanni di Dio FatebenefratelliBolognaITA13 aut.R. De GraafNetherlands Institute of Mental, Health and AddictionUtrechtNLD14 aut.G. GalMental Health Epidemiology and Psychosocial Aspects of Illness, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical CenterTel HashomerISR15 aut.Y. HeShanghai Mental Health CenterShanghaiCHN16 aut.C. HuShenzhen Institute of Mental HealthShenzhen, GuangdongCHN17 aut.N. IwataHiroshima International UniversityHigashi-HiroshimaJPN18 aut.E. G. KaramDepartment of Psychiatry and Clinical Psychology Institute for Development, Research, Advocacy, and Applied Care (IDRAAC), St. George Hospital University Medical CenterBeirutLBN19 aut.V. Kovess-MasfetyEA4069 Université Paris DescartesParisFRA20 aut.H. MatschingerClinic of Psychiatry, University of LeipzigLeipzigDEU21 aut.M. V. MoldovanNational School of Public Health and Health Services ManagementBucharestROU22 aut.J. Posada-VillaSaldarriaga Concha FoundationBogotaCOL23 aut.R. SagarAll India Institute of Medical Sciences (AIIMS)New DelhiIND24 aut.P. ScoccoDepartment of Mental HealthPaduaITA25 aut.S. SeedatMRC Research Unit on Anxiety and Stress DisorderCape TownZAF26 aut.T. TomovNew Bulgarian UniversitySofiaBGR27 aut.M. K. NockHarvard UniversityCambridge, MAUSA28 aut.12-00290902011PASCAL 12-0029090 INISTPascal:12-0029090000D49FRANCIS 12-0029090 INIST1359-4184Mol. psychiatryMolecular psychiatryFamily storyIntergeneration relationMental healthParentParent pathologyProgenyPsychopathologyRisk factorRisk takingSuicideSuicide attemptSurveyWorldPsychopathologiePathologie du parentPrise risqueFacteur risqueSuicideTentative suicideDescendanceMondeSanté mentaleEnquêteParentHistoire familialeRelation intergénération
Previous research suggests that parental psychopathology predicts suicidal behavior among offspring; however, the more fine-grained associations between specific parental disorders and distinct stages of the pathway to suicide are not well understood. We set out to test the hypothesis that parental disorders associated with negative mood would predict offspring suicide ideation, whereas disorders characterized by impulsive aggression (for example, antisocial personality) and anxiety/agitation (for example, panic disorder) would predict which offspring act on their suicide ideation and make a suicide attempt. Data were collected during face-to-face interviews conducted on nationally representative samples (N=55299; age 18+) from 21 countries around the world. We tested the associations between a range of parental disorders and the onset and persistence over time (that is, time since most recent episode controlling for age of onset and time since onset) of subsequent suicidal behavior (suicide ideation, plans and attempts) among offspring. Analyses tested bivariate and multivariate associations between each parental disorder and distinct forms of suicidal behavior. Results revealed that each parental disorder examined increased the risk of suicide ideation among offspring, parental generalized anxiety and depression emerged as the only predictors of the onset and persistence (respectively) of suicide plans among offspring with ideation, whereas parental antisocial personality and anxiety disorders emerged as the only predictors of the onset and persistence of suicide attempts among ideators. A dose-response relation between parental disorders and respondent risk of suicide ideation and attempt was also found. Parental death by suicide was a particularly strong predictor of persistence of suicide attempts among offspring. These associations remained significant after controlling for comorbidity of parental disorders and for the presence of mental disorders among offspring. These findings should inform future explorations of the mechanisms of intergenerational transmission of suicidal behavior.
1359-4184Mol. psychiatry1612Parental psychopathology and the risk of suicidal behavior in their offspring: results from the World Mental Health surveysGUREJE (O.)OLADEJI (B.)HWANG (I.)CHIU (W. T.)KESSLER (R. C.)SAMPSON (N. A.)ALONSO (J.)ANDRADE (L. H.)BEAUTRAIS (A.)BORGES (G.)BROMET (E.)BRUFFAERTS (R.)DE GIROLAMO (G.)DE GRAAF (R.)GAL (G.)HE (Y.)HU (C.)IWATA (N.)KARAM (E. G.)KOVESS-MASFETY (V.)MATSCHINGER (H.)MOLDOVAN (M. V.)POSADA-VILLA (J.)SAGAR (R.)SCOCCO (P.)SEEDAT (S.)TOMOV (T.)NOCK (M. K.)Department of Psychiatry, University College HospitalIbadanNGA1 aut.2 aut.Department of Health Care Policy, Harvard Medical SchoolBoston, MAUSA3 aut.4 aut.5 aut.6 aut.Health Services Research Unit, Institut Municipal d Investigació Mèdica (IMIM-Hospital del Mar); CIBER en Epidemiología y Salud Pública (CIBERESP)Barcelona, CataloniaESP7 aut.Department & Institute of Psychiatry, University of Sao Paulo, School of MedicineSao PauloBRA8 aut.University of Otago, Christchurch, Public Health and General PracticeChristchurchNZL9 aut.Instituto Nacional de Psiquiatria Ramon de la FuenteMexico CityMEX10 aut.Department of Psychiatry, Stony Brook UniversityStony Brook, NYUSA11 aut.Katholieke Universiteit LeuvenLeuvenBEL12 aut.IRCCS Centro S. Giovanni di Dio FatebenefratelliBolognaITA13 aut.Netherlands Institute of Mental, Health and AddictionUtrechtNLD14 aut.Mental Health Epidemiology and Psychosocial Aspects of Illness, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical CenterTel HashomerISR15 aut.Shanghai Mental Health CenterShanghaiCHN16 aut.Shenzhen Institute of Mental HealthShenzhen, GuangdongCHN17 aut.Hiroshima International UniversityHigashi-HiroshimaJPN18 aut.Department of Psychiatry and Clinical Psychology Institute for Development, Research, Advocacy, and Applied Care (IDRAAC), St. George Hospital University Medical CenterBeirutLBN19 aut.EA4069 Université Paris DescartesParisFRA20 aut.Clinic of Psychiatry, University of LeipzigLeipzigDEU21 aut.National School of Public Health and Health Services ManagementBucharestROU22 aut.Saldarriaga Concha FoundationBogotaCOL23 aut.All India Institute of Medical Sciences (AIIMS)New DelhiIND24 aut.Department of Mental HealthPaduaITA25 aut.MRC Research Unit on Anxiety and Stress DisorderCape TownZAF26 aut.New Bulgarian UniversitySofiaBGR27 aut.Harvard UniversityCambridge, MAUSA28 aut.1221-12332011ENGINIST264393540005073630600900000© 2012 INIST-CNRS. All rights reserved.39 ref.12-0029090PAMolecular psychiatryGBRPrevious research suggests that parental psychopathology predicts suicidal behavior among offspring; however, the more fine-grained associations between specific parental disorders and distinct stages of the pathway to suicide are not well understood. We set out to test the hypothesis that parental disorders associated with negative mood would predict offspring suicide ideation, whereas disorders characterized by impulsive aggression (for example, antisocial personality) and anxiety/agitation (for example, panic disorder) would predict which offspring act on their suicide ideation and make a suicide attempt. Data were collected during face-to-face interviews conducted on nationally representative samples (N=55299; age 18+) from 21 countries around the world. We tested the associations between a range of parental disorders and the onset and persistence over time (that is, time since most recent episode controlling for age of onset and time since onset) of subsequent suicidal behavior (suicide ideation, plans and attempts) among offspring. Analyses tested bivariate and multivariate associations between each parental disorder and distinct forms of suicidal behavior. Results revealed that each parental disorder examined increased the risk of suicide ideation among offspring, parental generalized anxiety and depression emerged as the only predictors of the onset and persistence (respectively) of suicide plans among offspring with ideation, whereas parental antisocial personality and anxiety disorders emerged as the only predictors of the onset and persistence of suicide attempts among ideators. A dose-response relation between parental disorders and respondent risk of suicide ideation and attempt was also found. Parental death by suicide was a particularly strong predictor of persistence of suicide attempts among offspring. These associations remained significant after controlling for comorbidity of parental disorders and for the presence of mental disorders among offspring. These findings should inform future explorations of the mechanisms of intergenerational transmission of suicidal behavior.002B18C11Psychopathologie01Psychopathology01Psicopatología01Pathologie du parentNF02Parent pathologyNF02Pariente patologíaNF02Prise risque03Risk taking03Toma riesgo03Facteur risque04Risk factor04Factor riesgo04Suicide05Suicide05Suicidio05Tentative suicide06Suicide attempt06Tentativa suicidio06Descendance07Progeny07Descendencia07MondeNG08WorldNG08MundoNG08Santé mentale09Mental health09Salud mental09Enquête10Survey10Encuesta10Parent11Parent11Pariente11Histoire familiale12Family story12Historia familiar12Relation intergénération13Intergeneration relation13Relación intergeneracional13016OTOOTOPASCAL 12-0029090 INISTParental psychopathology and the risk of suicidal behavior in their offspring: results from the World Mental Health surveysGUREJE (O.); OLADEJI (B.); HWANG (I.); CHIU (W. T.); KESSLER (R. C.); SAMPSON (N. A.); ALONSO (J.); ANDRADE (L. H.); BEAUTRAIS (A.); BORGES (G.); BROMET (E.); BRUFFAERTS (R.); DE GIROLAMO (G.); DE GRAAF (R.); GAL (G.); HE (Y.); HU (C.); IWATA (N.); KARAM (E. G.); KOVESS-MASFETY (V.); MATSCHINGER (H.); MOLDOVAN (M. V.); POSADA-VILLA (J.); SAGAR (R.); SCOCCO (P.); SEEDAT (S.); TOMOV (T.); NOCK (M. K.)Department of Psychiatry, University College Hospital/Ibadan/Nigéria (1 aut., 2 aut.); Department of Health Care Policy, Harvard Medical School/Boston, MA/Etats-Unis (3 aut., 4 aut., 5 aut., 6 aut.); Health Services Research Unit, Institut Municipal d Investigació Mèdica (IMIM-Hospital del Mar); CIBER en Epidemiología y Salud Pública (CIBERESP)/Barcelona, Catalonia/Espagne (7 aut.); Department & Institute of Psychiatry, University of Sao Paulo, School of Medicine/Sao Paulo/Brésil (8 aut.); University of Otago, Christchurch, Public Health and General Practice/Christchurch/Nouvelle-Zélande (9 aut.); Instituto Nacional de Psiquiatria Ramon de la Fuente/Mexico City/Mexique (10 aut.); Department of Psychiatry, Stony Brook University/Stony Brook, NY/Etats-Unis (11 aut.); Katholieke Universiteit Leuven/Leuven/Belgique (12 aut.); IRCCS Centro S. Giovanni di Dio Fatebenefratelli/Bologna/Italie (13 aut.); Netherlands Institute of Mental, Health and Addiction/Utrecht/Pays-Bas (14 aut.); Mental Health Epidemiology and Psychosocial Aspects of Illness, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center/Tel Hashomer/Israël (15 aut.); Shanghai Mental Health Center/Shanghai/Chine (16 aut.); Shenzhen Institute of Mental Health/Shenzhen, Guangdong/Chine (17 aut.); Hiroshima International University/Higashi-Hiroshima/Japon (18 aut.); Department of Psychiatry and Clinical Psychology Institute for Development, Research, Advocacy, and Applied Care (IDRAAC), St. George Hospital University Medical Center/Beirut/Liban (19 aut.); EA4069 Université Paris Descartes/Paris/France (20 aut.); Clinic of Psychiatry, University of Leipzig/Leipzig/Allemagne (21 aut.); National School of Public Health and Health Services Management/Bucharest/Roumanie (22 aut.); Saldarriaga Concha Foundation/Bogota/Colombie (23 aut.); All India Institute of Medical Sciences (AIIMS)/New Delhi/Inde (24 aut.); Department of Mental Health/Padua/Italie (25 aut.); MRC Research Unit on Anxiety and Stress Disorder/Cape Town/Afrique du Sud (26 aut.); New Bulgarian University/Sofia/Bulgarie (27 aut.); Harvard University/Cambridge, MA/Etats-Unis (28 aut.)
Publication en série; Niveau analytique
Molecular psychiatry; ISSN 1359-4184; Royaume-Uni; Da. 2011; Vol. 16; No. 12; Pp. 1221-1233; Bibl. 39 ref.AnglaisPrevious research suggests that parental psychopathology predicts suicidal behavior among offspring; however, the more fine-grained associations between specific parental disorders and distinct stages of the pathway to suicide are not well understood. We set out to test the hypothesis that parental disorders associated with negative mood would predict offspring suicide ideation, whereas disorders characterized by impulsive aggression (for example, antisocial personality) and anxiety/agitation (for example, panic disorder) would predict which offspring act on their suicide ideation and make a suicide attempt. Data were collected during face-to-face interviews conducted on nationally representative samples (N=55299; age 18+) from 21 countries around the world. We tested the associations between a range of parental disorders and the onset and persistence over time (that is, time since most recent episode controlling for age of onset and time since onset) of subsequent suicidal behavior (suicide ideation, plans and attempts) among offspring. Analyses tested bivariate and multivariate associations between each parental disorder and distinct forms of suicidal behavior. Results revealed that each parental disorder examined increased the risk of suicide ideation among offspring, parental generalized anxiety and depression emerged as the only predictors of the onset and persistence (respectively) of suicide plans among offspring with ideation, whereas parental antisocial personality and anxiety disorders emerged as the only predictors of the onset and persistence of suicide attempts among ideators. A dose-response relation between parental disorders and respondent risk of suicide ideation and attempt was also found. Parental death by suicide was a particularly strong predictor of persistence of suicide attempts among offspring. These associations remained significant after controlling for comorbidity of parental disorders and for the presence of mental disorders among offspring. These findings should inform future explorations of the mechanisms of intergenerational transmission of suicidal behavior.002B18C11Psychopathologie; Pathologie du parent; Prise risque; Facteur risque; Suicide; Tentative suicide; Descendance; Monde; Santé mentale; Enquête; Parent; Histoire familiale; Relation intergénérationPsychopathology; Parent pathology; Risk taking; Risk factor; Suicide; Suicide attempt; Progeny; World; Mental health; Survey; Parent; Family story; Intergeneration relationPsicopatología; Pariente patología; Toma riesgo; Factor riesgo; Suicidio; Tentativa suicidio; Descendencia; Mundo; Salud mental; Encuesta; Pariente; Historia familiar; Relación intergeneracionalINIST-26439.35400050736306009012-0029090 001B46 Distributed constraint optimization with MULBS: A case study on collaborative meeting scheduling : Collaborative Computing and ApplicationsFabr Cio EnembreckPontificia Universidade Católica do Paraná, Graduate Program on Informatics-PPGIA, av. Imaculada Conceição1155, Curitiba-ParanáBRA1 aut.Jean-Paul Andre BarthesUniversité de Technologie de Compiegne, Centre de Recherches RoyallieuCompiègneFRA2 aut.12-00295662012PASCAL 12-0029566 INISTPascal:12-0029566000D481084-8045J. netw. comput. appl.Journal of network and computer applicationsAlgorithmArtificial intelligenceCase studyConstrained optimizationCooperative systemsNP complete problemObjective functionPerformance evaluationProduction systemSchedulingState of the artOptimisation sous contrainteEtude casOrdonnancementAlgorithmeSystème coopératifSystème productionFonction objectifProblème NP completEvaluation performanceEtat actuelIntelligence artificielle
This paper introduces MULBS, a new DCOP (distributed constraint optimization problem) algorithm and also presents a DCOP formulation for scheduling of distributed meetings in collaborative environments. Scheduling in CSCWD can be seen as a DCOP where variables represent time slots and values are resources of a production system (machines, raw-materials, hardware components, etc.) or management system (meetings, project tasks, human resources, money, etc). Therefore, a DCOP algorithm must find a set of variable assignments that maximize an objective function taking constraints into account. However, it is well known that such problems are NP-complete and that more research must be done to obtain feasible and reliable computational approaches. Thus, DCOP emerges as a very promising technique: the search space is decomposed into smaller spaces and agents solve local problems, collaborating in order to achieve a global solution. We show with empirical experiments that MULBS outperforms some of the state-of-the-art algorithms for DCOP, guaranteeing high quality solutions using less computational resources for the distributed meeting scheduling task.
1084-8045J. netw. comput. appl.351Distributed constraint optimization with MULBS: A case study on collaborative meeting scheduling : Collaborative Computing and ApplicationsENEMBRECK (Fabrício)ANDRE BARTHES (Jean-Paul)Pontificia Universidade Católica do Paraná, Graduate Program on Informatics-PPGIA, av. Imaculada Conceição1155, Curitiba-ParanáBRA1 aut.Université de Technologie de Compiegne, Centre de Recherches RoyallieuCompiègneFRA2 aut.164-1752012ENGINIST196163540005056844401400000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0029566PAJournal of network and computer applicationsGBRThis paper introduces MULBS, a new DCOP (distributed constraint optimization problem) algorithm and also presents a DCOP formulation for scheduling of distributed meetings in collaborative environments. Scheduling in CSCWD can be seen as a DCOP where variables represent time slots and values are resources of a production system (machines, raw-materials, hardware components, etc.) or management system (meetings, project tasks, human resources, money, etc). Therefore, a DCOP algorithm must find a set of variable assignments that maximize an objective function taking constraints into account. However, it is well known that such problems are NP-complete and that more research must be done to obtain feasible and reliable computational approaches. Thus, DCOP emerges as a very promising technique: the search space is decomposed into smaller spaces and agents solve local problems, collaborating in order to achieve a global solution. We show with empirical experiments that MULBS outperforms some of the state-of-the-art algorithms for DCOP, guaranteeing high quality solutions using less computational resources for the distributed meeting scheduling task.001D02C02Optimisation sous contrainte01Constrained optimization01Optimización con restricción01Etude cas02Case study02Estudio caso02Ordonnancement03Scheduling03Reglamento03Algorithme04Algorithm04Algoritmo04Système coopératif05Cooperative systems05Système production06Production system06Sistema producción06Fonction objectif07Objective function07Función objetivo07Problème NP complet08NP complete problem08Problema NP completo08Evaluation performance09Performance evaluation09Evaluación prestación09Etat actuel10State of the art10Estado actual10Intelligence artificielle11Artificial intelligence11Inteligencia artificial11016OTOOTOPASCAL 12-0029566 INISTDistributed constraint optimization with MULBS: A case study on collaborative meeting scheduling : Collaborative Computing and ApplicationsENEMBRECK (Fabrício); ANDRE BARTHES (Jean-Paul)Pontificia Universidade Católica do Paraná, Graduate Program on Informatics-PPGIA, av. Imaculada Conceição/1155, Curitiba-Paraná/Brésil (1 aut.); Université de Technologie de Compiegne, Centre de Recherches Royallieu/Compiègne/France (2 aut.)
Publication en série; Niveau analytique
Journal of network and computer applications; ISSN 1084-8045; Royaume-Uni; Da. 2012; Vol. 35; No. 1; Pp. 164-175; Bibl. 1/4 p.AnglaisThis paper introduces MULBS, a new DCOP (distributed constraint optimization problem) algorithm and also presents a DCOP formulation for scheduling of distributed meetings in collaborative environments. Scheduling in CSCWD can be seen as a DCOP where variables represent time slots and values are resources of a production system (machines, raw-materials, hardware components, etc.) or management system (meetings, project tasks, human resources, money, etc). Therefore, a DCOP algorithm must find a set of variable assignments that maximize an objective function taking constraints into account. However, it is well known that such problems are NP-complete and that more research must be done to obtain feasible and reliable computational approaches. Thus, DCOP emerges as a very promising technique: the search space is decomposed into smaller spaces and agents solve local problems, collaborating in order to achieve a global solution. We show with empirical experiments that MULBS outperforms some of the state-of-the-art algorithms for DCOP, guaranteeing high quality solutions using less computational resources for the distributed meeting scheduling task.001D02C02Optimisation sous contrainte; Etude cas; Ordonnancement; Algorithme; Système coopératif; Système production; Fonction objectif; Problème NP complet; Evaluation performance; Etat actuel; Intelligence artificielleConstrained optimization; Case study; Scheduling; Algorithm; Cooperative systems; Production system; Objective function; NP complete problem; Performance evaluation; State of the art; Artificial intelligenceOptimización con restricción; Estudio caso; Reglamento; Algoritmo; Sistema producción; Función objetivo; Problema NP completo; Evaluación prestación; Estado actual; Inteligencia artificialINIST-19616.35400050568444014012-0029566 001B47 On the confidence preferences modelAlain ChateauneufPSE, Université de Paris I, CES, 106-112, Bld de l'Hôpital75647 ParisFRA1 aut.Jose Heleno FarohInsper Institute of Education and Research, Rua Quatá 300, Vila Olímpia04546-042 São PauloBRA2 aut.12-00305882012PASCAL 12-0030588 INISTPascal:12-0030588000D470165-0114Fuzzy sets syst.Fuzzy sets and systemsAxiomaticFuzzy setFuzzy systemInformation processingTraitement informationEnsemble flouSystème flouAxiomatique
In this paper we study the model of decision under uncertainty consistent with confidence preferences. In that model, a decision maker held beliefs represented by a fuzzy set of priors and tastes captured by a standard affine utility index on consequences. First, we find some interesting properties concerning the well-known maxmin expected utility model, taking into account the point of view of the confidence preferences model. Further, we provide new examples of preferences that capture ambiguity-averse attitudes weaker than ambiguity attitudes featured by maxmin expected utility theory. Finally, we discuss the axiomatic foundations for the confidence preferences model with optimistic behavior.
0165-0114FSSYD8Fuzzy sets syst.1881On the confidence preferences modelCHATEAUNEUF (Alain)HELENO FAROH (Jose)PSE, Université de Paris I, CES, 106-112, Bld de l'Hôpital75647 ParisFRA1 aut.Insper Institute of Education and Research, Rua Quatá 300, Vila Olímpia04546-042 São PauloBRA2 aut.1-152012ENGINIST180033540005073920100100000© 2012 INIST-CNRS. All rights reserved.29 ref.12-0030588PAFuzzy sets and systemsGBRIn this paper we study the model of decision under uncertainty consistent with confidence preferences. In that model, a decision maker held beliefs represented by a fuzzy set of priors and tastes captured by a standard affine utility index on consequences. First, we find some interesting properties concerning the well-known maxmin expected utility model, taking into account the point of view of the confidence preferences model. Further, we provide new examples of preferences that capture ambiguity-averse attitudes weaker than ambiguity attitudes featured by maxmin expected utility theory. Finally, we discuss the axiomatic foundations for the confidence preferences model with optimistic behavior.001D02A08001D04A02001D03G02A6Traitement information01Information processing01Procesamiento información01Ensemble flou02Fuzzy set02Conjunto difuso02Système flou03Fuzzy system03Sistema difuso03Axiomatique17Axiomatic17Axiomático17016OTOOTOPASCAL 12-0030588 INISTOn the confidence preferences modelCHATEAUNEUF (Alain); HELENO FAROH (Jose)PSE, Université de Paris I, CES, 106-112, Bld de l'Hôpital/75647 Paris/France (1 aut.); Insper Institute of Education and Research, Rua Quatá 300, Vila Olímpia/04546-042 São Paulo/Brésil (2 aut.)
Publication en série; Niveau analytique
Fuzzy sets and systems; ISSN 0165-0114; Coden FSSYD8; Royaume-Uni; Da. 2012; Vol. 188; No. 1; Pp. 1-15; Bibl. 29 ref.AnglaisIn this paper we study the model of decision under uncertainty consistent with confidence preferences. In that model, a decision maker held beliefs represented by a fuzzy set of priors and tastes captured by a standard affine utility index on consequences. First, we find some interesting properties concerning the well-known maxmin expected utility model, taking into account the point of view of the confidence preferences model. Further, we provide new examples of preferences that capture ambiguity-averse attitudes weaker than ambiguity attitudes featured by maxmin expected utility theory. Finally, we discuss the axiomatic foundations for the confidence preferences model with optimistic behavior.001D02A08; 001D04A02; 001D03G02A6Traitement information; Ensemble flou; Système flou; AxiomatiqueInformation processing; Fuzzy set; Fuzzy system; AxiomaticProcesamiento información; Conjunto difuso; Sistema difuso; AxiomáticoINIST-18003.35400050739201001012-0030588 001B48 THE MASS OF CoRoT-7bArtie P. HatzesThüringer Landessternwarte07778 TautenburgDEU1 aut.20 aut.21 aut.Malcolm FridlundEuropean Space Agency, ESTEC, SRE-SA, P.O. Box 2992200AG, NoordwijkNLD2 aut.18 aut.Gil NachmaniSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR3 aut.4 aut.Tsevi MazehSchool of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR3 aut.4 aut.Diana ValenciaObservatoire de la Côte d'Azur, BP 422906304 NiceFRA5 aut.Guillaume HebrardInstitut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA6 aut.14 aut.Ludmila CaroneRheinisches Institut für Umweltforschung, Universität zu Köln, Abt. Planetenforschung, Aachener Str. 20950931 KölnDEU7 aut.8 aut.Martin P TzoldRheinisches Institut für Umweltforschung, Universität zu Köln, Abt. Planetenforschung, Aachener Str. 20950931 KölnDEU7 aut.8 aut.Stephane UdryObservatoire de l'Université de Geneve, 51 chemin des Maillettes1290 SauvernyCHE9 aut.30 aut.31 aut.Francois BouchyObservatoire de Haute Provence04670 Saint Michel l'ObservatoireFRA10 aut.Magali DeleuilLaboratoire d'Astrophysique de Marseille, CNRS & University of Provence, 38 rue Frédéric Joliot-Curie13388 MarseilleFRA11 aut.12 aut.13 aut.Claire MoutouLaboratoire d'Astrophysique de Marseille, CNRS & University of Provence, 38 rue Frédéric Joliot-Curie13388 MarseilleFRA11 aut.12 aut.13 aut.Pierre BargeLaboratoire d'Astrophysique de Marseille, CNRS & University of Provence, 38 rue Frédéric Joliot-Curie13388 MarseilleFRA11 aut.12 aut.13 aut.Pascal BordeInstitut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA6 aut.14 aut.Hans DeegInstituto de Astrofisica de Canarias38205 La Laguna, TenerifeESP15 aut.16 aut.Brandon TingleyInstituto de Astrofisica de Canarias38205 La Laguna, TenerifeESP15 aut.16 aut.Rudolf DvorakUniversity of Vienna, Institute of Astronomy, Türkenschanzstr. 171180, ViennaAUT17 aut.Davide GandolfiEuropean Space Agency, ESTEC, SRE-SA, P.O. Box 2992200AG, NoordwijkNLD2 aut.18 aut.Sylvio Ferraz-MelloIAG, University of São PauloBRA19 aut.G Nther WuchterlThüringer Landessternwarte07778 TautenburgDEU1 aut.20 aut.21 aut.Eike GuentherThüringer Landessternwarte07778 TautenburgDEU1 aut.20 aut.21 aut.Tristan GuillotUniversité de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 422906304 NiceFRA22 aut.Heike RauerInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU23 aut.24 aut.25 aut.26 aut.Anders EriksonInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU23 aut.24 aut.25 aut.26 aut.Juan CabreraInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU23 aut.24 aut.25 aut.26 aut.Szilard CsizmadiaInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU23 aut.24 aut.25 aut.26 aut.Alain LegerInstitut d'Astrophysique Spatiale, Université Paris XI91405 OrsayFRA27 aut.Helmut LammerSpace Research Institute, Austrian Academy of Science, Schmiedlstr. 68042, GrazAUT28 aut.29 aut.J Rg WeingrillSpace Research Institute, Austrian Academy of Science, Schmiedlstr. 68042, GrazAUT28 aut.29 aut.Didier QuelozObservatoire de l'Université de Geneve, 51 chemin des Maillettes1290 SauvernyCHE9 aut.30 aut.31 aut.Roi AlonsoObservatoire de l'Université de Geneve, 51 chemin des Maillettes1290 SauvernyCHE9 aut.30 aut.31 aut.Daniel RouanLESIA, Observatoire de Paris, Place Jules Janssen92195 MeudonFRA32 aut.Jean SchneiderLUTH, Observatoire de Paris, CNRS, Université Paris Diderot; 5 place Jules Janssen92195 MeudonFRA33 aut.12-00327042011PASCAL 12-0032704 INISTPascal:12-0032704000D460004-637XAstrophys. j.The Astrophysical journalBulk densityExtrasolar planetsInternal structureModelsPlanetary systemRadial velocityTerrestrial planetPlanète extrasolaireVitesse radialeModèleDensité volumiquePlanète terrestreStructure interneSystème planétaire
The mass of CoRoT-7b, the first transiting super-Earth exoplanet, is still a subject of debate. A wide range of masses have been reported in the literature ranging from as high as 8 M◦+ to as low as 2.3 M◦+. This range in mass is largely due to the activity level of the star that contributes a significant amount of radial velocity (RV) "jitter" and how the various methods correct this jitter. Although most mass determinations give a density consistent with a rocky planet, the lower value permits a bulk composition that can be up to 50% water. We present an analysis of the CoRoT-7b RV measurements that uses very few and simple assumptions in treating the activity signal. By analyzing those RV data for which multiple measurements were made in a given night, we remove the activity related RV contribution without any a priori model. We argue that the contribution of activity to the final RV curve is negligible and that the K-amplitude due to the planet is well constrained. This yields a mass of 7.42 ± 1.21 M◦+ and a mean density of ρ = 10.4 ± 1.8 gm cm-3. CoRoT-7b is similar in mass and radius to the second rocky planet to be discovered, Kepler-10b, and within the errors they have identical bulk densities-they are virtual twins. These bulk densities lie close to the density-radius relationship for terrestrial planets similar to what is seen for Mercury. CoRoT-7b and Kepler-10b may have an internal structure more like Mercury than the Earth.
0004-637XASJOABAstrophys. j.7431p. 1THE MASS OF CoRoT-7bHATZES (Artie P.)FRIDLUND (Malcolm)NACHMANI (Gil)MAZEH (Tsevi)VALENCIA (Diana)HEBRARD (Guillaume)CARONE (Ludmila)PÄTZOLD (Martin)UDRY (Stephane)BOUCHY (Francois)DELEUIL (Magali)MOUTOU (Claire)BARGE (Pierre)BORDE (Pascal)DEEG (Hans)TINGLEY (Brandon)DVORAK (Rudolf)GANDOLFI (Davide)FERRAZ-MELLO (Sylvio)WUCHTERL (Günther)GUENTHER (Eike)GUILLOT (Tristan)RAUER (Heike)ERIKSON (Anders)CABRERA (Juan)CSIZMADIA (Szilard)LEGER (Alain)LAMMER (Helmut)WEINGRILL (Jörg)QUELOZ (Didier)ALONSO (Roi)ROUAN (Daniel)SCHNEIDER (Jean)Thüringer Landessternwarte07778 TautenburgDEU1 aut.20 aut.21 aut.European Space Agency, ESTEC, SRE-SA, P.O. Box 2992200AG, NoordwijkNLD2 aut.18 aut.School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv UniversityTel AvivISR3 aut.4 aut.Observatoire de la Côte d'Azur, BP 422906304 NiceFRA5 aut.Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago75014 ParisFRA6 aut.14 aut.Rheinisches Institut für Umweltforschung, Universität zu Köln, Abt. Planetenforschung, Aachener Str. 20950931 KölnDEU7 aut.8 aut.Observatoire de l'Université de Geneve, 51 chemin des Maillettes1290 SauvernyCHE9 aut.30 aut.31 aut.Observatoire de Haute Provence04670 Saint Michel l'ObservatoireFRA10 aut.Laboratoire d'Astrophysique de Marseille, CNRS & University of Provence, 38 rue Frédéric Joliot-Curie13388 MarseilleFRA11 aut.12 aut.13 aut.Instituto de Astrofisica de Canarias38205 La Laguna, TenerifeESP15 aut.16 aut.University of Vienna, Institute of Astronomy, Türkenschanzstr. 171180, ViennaAUT17 aut.IAG, University of São PauloBRA19 aut.Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 422906304 NiceFRA22 aut.Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 212489 BerlinDEU23 aut.24 aut.25 aut.26 aut.Institut d'Astrophysique Spatiale, Université Paris XI91405 OrsayFRA27 aut.Space Research Institute, Austrian Academy of Science, Schmiedlstr. 68042, GrazAUT28 aut.29 aut.LESIA, Observatoire de Paris, Place Jules Janssen92195 MeudonFRA32 aut.LUTH, Observatoire de Paris, CNRS, Université Paris Diderot; 5 place Jules Janssen92195 MeudonFRA33 aut.75.1-75.112011ENGINIST5123540005059460607500000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0032704PAThe Astrophysical journalGBRThe mass of CoRoT-7b, the first transiting super-Earth exoplanet, is still a subject of debate. A wide range of masses have been reported in the literature ranging from as high as 8 M◦+ to as low as 2.3 M◦+. This range in mass is largely due to the activity level of the star that contributes a significant amount of radial velocity (RV) "jitter" and how the various methods correct this jitter. Although most mass determinations give a density consistent with a rocky planet, the lower value permits a bulk composition that can be up to 50% water. We present an analysis of the CoRoT-7b RV measurements that uses very few and simple assumptions in treating the activity signal. By analyzing those RV data for which multiple measurements were made in a given night, we remove the activity related RV contribution without any a priori model. We argue that the contribution of activity to the final RV curve is negligible and that the K-amplitude due to the planet is well constrained. This yields a mass of 7.42 ± 1.21 M◦+ and a mean density of ρ = 10.4 ± 1.8 gm cm-3. CoRoT-7b is similar in mass and radius to the second rocky planet to be discovered, Kepler-10b, and within the errors they have identical bulk densities-they are virtual twins. These bulk densities lie close to the density-radius relationship for terrestrial planets similar to what is seen for Mercury. CoRoT-7b and Kepler-10b may have an internal structure more like Mercury than the Earth.001E03Planète extrasolaire26Extrasolar planets26Vitesse radiale27Radial velocity27Modèle28Models28Modelo28Densité volumique29Bulk density29Planète terrestre30Terrestrial planet30Planeta terrestre30Structure interne31Internal structure31Estructura interna31Système planétaire32Planetary system32Sistema planetario32016OTOOTOPASCAL 12-0032704 INISTTHE MASS OF CoRoT-7bHATZES (Artie P.); FRIDLUND (Malcolm); NACHMANI (Gil); MAZEH (Tsevi); VALENCIA (Diana); HEBRARD (Guillaume); CARONE (Ludmila); PÄTZOLD (Martin); UDRY (Stephane); BOUCHY (Francois); DELEUIL (Magali); MOUTOU (Claire); BARGE (Pierre); BORDE (Pascal); DEEG (Hans); TINGLEY (Brandon); DVORAK (Rudolf); GANDOLFI (Davide); FERRAZ-MELLO (Sylvio); WUCHTERL (Günther); GUENTHER (Eike); GUILLOT (Tristan); RAUER (Heike); ERIKSON (Anders); CABRERA (Juan); CSIZMADIA (Szilard); LEGER (Alain); LAMMER (Helmut); WEINGRILL (Jörg); QUELOZ (Didier); ALONSO (Roi); ROUAN (Daniel); SCHNEIDER (Jean)Thüringer Landessternwarte/07778 Tautenburg/Allemagne (1 aut., 20 aut., 21 aut.); European Space Agency, ESTEC, SRE-SA, P.O. Box 299/2200AG, Noordwijk/Pays-Bas (2 aut., 18 aut.); School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University/Tel Aviv/Israël (3 aut., 4 aut.); Observatoire de la Côte d'Azur, BP 4229/06304 Nice/France (5 aut.); Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre & Marie Curie, 98bis boulevard Arago/75014 Paris/France (6 aut., 14 aut.); Rheinisches Institut für Umweltforschung, Universität zu Köln, Abt. Planetenforschung, Aachener Str. 209/50931 Köln/Allemagne (7 aut., 8 aut.); Observatoire de l'Université de Geneve, 51 chemin des Maillettes/1290 Sauverny/Suisse (9 aut., 30 aut., 31 aut.); Observatoire de Haute Provence/04670 Saint Michel l'Observatoire/France (10 aut.); Laboratoire d'Astrophysique de Marseille, CNRS & University of Provence, 38 rue Frédéric Joliot-Curie/13388 Marseille/France (11 aut., 12 aut., 13 aut.); Instituto de Astrofisica de Canarias/38205 La Laguna, Tenerife/Espagne (15 aut., 16 aut.); University of Vienna, Institute of Astronomy, Türkenschanzstr. 17/1180, Vienna/Autriche (17 aut.); IAG, University of São Paulo/Brésil (19 aut.); Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 4229/06304 Nice/France (22 aut.); Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2/12489 Berlin/Allemagne (23 aut., 24 aut., 25 aut., 26 aut.); Institut d'Astrophysique Spatiale, Université Paris XI/91405 Orsay/France (27 aut.); Space Research Institute, Austrian Academy of Science, Schmiedlstr. 6/8042, Graz/Autriche (28 aut., 29 aut.); LESIA, Observatoire de Paris, Place Jules Janssen/92195 Meudon/France (32 aut.); LUTH, Observatoire de Paris, CNRS, Université Paris Diderot; 5 place Jules Janssen/92195 Meudon/France (33 aut.)
Publication en série; Niveau analytique
The Astrophysical journal; ISSN 0004-637X; Coden ASJOAB; Royaume-Uni; Da. 2011; Vol. 743; No. 1 p. 1; 75.1-75.11; Bibl. 1/4 p.AnglaisThe mass of CoRoT-7b, the first transiting super-Earth exoplanet, is still a subject of debate. A wide range of masses have been reported in the literature ranging from as high as 8 M◦+ to as low as 2.3 M◦+. This range in mass is largely due to the activity level of the star that contributes a significant amount of radial velocity (RV) "jitter" and how the various methods correct this jitter. Although most mass determinations give a density consistent with a rocky planet, the lower value permits a bulk composition that can be up to 50% water. We present an analysis of the CoRoT-7b RV measurements that uses very few and simple assumptions in treating the activity signal. By analyzing those RV data for which multiple measurements were made in a given night, we remove the activity related RV contribution without any a priori model. We argue that the contribution of activity to the final RV curve is negligible and that the K-amplitude due to the planet is well constrained. This yields a mass of 7.42 ± 1.21 M◦+ and a mean density of ρ = 10.4 ± 1.8 gm cm-3. CoRoT-7b is similar in mass and radius to the second rocky planet to be discovered, Kepler-10b, and within the errors they have identical bulk densities-they are virtual twins. These bulk densities lie close to the density-radius relationship for terrestrial planets similar to what is seen for Mercury. CoRoT-7b and Kepler-10b may have an internal structure more like Mercury than the Earth.001E03Planète extrasolaire; Vitesse radiale; Modèle; Densité volumique; Planète terrestre; Structure interne; Système planétaireExtrasolar planets; Radial velocity; Models; Bulk density; Terrestrial planet; Internal structure; Planetary systemModelo; Planeta terrestre; Estructura interna; Sistema planetarioINIST-512.35400050594606075012-0032704 001B49 Bauxitisation of anorthosites from Central BrazilFabio Soares De OliveiraDepartamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/nOuro Preto, 35400-000 MGBRA1 aut.2 aut.3 aut.5 aut.Instituto de Geociências, Departamento de Geografia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627Belo Horizonte, 31270-901 MGBRA1 aut.Angélica Fortes Drummond Chicarino VarajaoDepartamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/nOuro Preto, 35400-000 MGBRA1 aut.2 aut.3 aut.5 aut.Cesar Augusto Chicarino VarajaoDepartamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/nOuro Preto, 35400-000 MGBRA1 aut.2 aut.3 aut.5 aut.Bruno BoulangeMusee de la BauxiteTourvesFRA4 aut.Newton Souza GomesDepartamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/nOuro Preto, 35400-000 MGBRA1 aut.2 aut.3 aut.5 aut.12-00357432011PASCAL 12-0035743 INISTPascal:12-0035743000D450016-7061Geoderma : (Amst.)Geoderma : (Amsterdam)BrazilGoias BrazilOptical microscopySEM dataX-ray diffractionX-ray fluorescenceanorthositebauxitebytownitedrill coreselectron probefracturesgibbsitehydrolysismicromorphologyscanning electron microscopysoilsultramaficsweatheringDiffraction RXFluorescence RXMicroscopie optiqueMicroscopie électronique balayageMicrosonde électroniqueSolMicromorphologieAnorthositeBauxiteRoche ultramafiqueHydrolyseAltération météoriqueDonnée MEBBytowniteFractureCarotteGibbsiteBrésilGoias
Petrological studies using X-ray diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, scanning electron microscopy (SEM-EDS) and electron microprobe analyzer (WDS) showed the mineralogical, micromorphological and geochemical transformations due to the bauxitisation of anorthosite from the Barro Alto Stratiform Mafic-Ultramafic Complex (Central Brazil). The hydrolytic alteration of the anorthosite occurred in two different stages in accordance with the order of stability of the minerals to the weathering: firstly the bytownite and secondly the ferromagnesian minerals. The weathering solutions, benefited from the existing network of fractures, percolated the weakness zones of the minerals characterising the microsystem of contact in which cores of plagioclase and ferromagnesian minerals were formed. In the first stage, the plagioclases are altered directly to gibbsite, and at an early stage, during the change process, the gibbsite crystals surround the primary ferromagnesian minerals that are totally or partially preserved. The transformation is isalteritic and is responsible for formation of porous alteromorphs consisting of septa of coarse gibbsite and fine gibbsite. As the weathering process advances, the ferromagnesian minerals directly enter to goethite. The boxworks of gibbsite and goethite characterise a primary plasmic microsystem.
0016-7061GEDMABGeoderma : (Amst.)167-168Bauxitisation of anorthosites from Central BrazilDE OLIVEIRA (Fabio Soares)DRUMMOND CHICARINO VARAJAO (Angélica Fortes)CHICARINO VARAJAO (Cesar Augusto)BOULANGE (Bruno)SOUZA GOMES (Newton)Departamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/nOuro Preto, 35400-000 MGBRA1 aut.2 aut.3 aut.5 aut.Instituto de Geociências, Departamento de Geografia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627Belo Horizonte, 31270-901 MGBRA1 aut.Musee de la BauxiteTourvesFRA4 aut.319-3272011ENGINIST36073540005073587803400000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0035743PAGeoderma : (Amsterdam)NLDPetrological studies using X-ray diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, scanning electron microscopy (SEM-EDS) and electron microprobe analyzer (WDS) showed the mineralogical, micromorphological and geochemical transformations due to the bauxitisation of anorthosite from the Barro Alto Stratiform Mafic-Ultramafic Complex (Central Brazil). The hydrolytic alteration of the anorthosite occurred in two different stages in accordance with the order of stability of the minerals to the weathering: firstly the bytownite and secondly the ferromagnesian minerals. The weathering solutions, benefited from the existing network of fractures, percolated the weakness zones of the minerals characterising the microsystem of contact in which cores of plagioclase and ferromagnesian minerals were formed. In the first stage, the plagioclases are altered directly to gibbsite, and at an early stage, during the change process, the gibbsite crystals surround the primary ferromagnesian minerals that are totally or partially preserved. The transformation is isalteritic and is responsible for formation of porous alteromorphs consisting of septa of coarse gibbsite and fine gibbsite. As the weathering process advances, the ferromagnesian minerals directly enter to goethite. The boxworks of gibbsite and goethite characterise a primary plasmic microsystem.002A32001E01P03001E01B03226C03220B03Diffraction RX01X-ray diffraction01Difracción RX01Fluorescence RX02X-ray fluorescence02Fluorescencia RX02Microscopie optique03Optical microscopy03Microscopía óptica03Microscopie électronique balayage04scanning electron microscopy04Microsonde électronique05electron probe05Microsonda electrónica05SolNT06soilsNT06SueloNT06Micromorphologie07micromorphology07Micromorfología07AnorthositeNV08anorthositeNV08AnortositaNV08BauxiteNV09bauxiteNV09BauxitaNV09Roche ultramafiqueNV10ultramaficsNV10Hydrolyse11hydrolysis11Hidrólisis11Altération météorique12weathering12Alteración meteórica12Donnée MEB13SEM data13Dato MEB13BytowniteNZ14bytowniteNZ14BitownitaNZ14Fracture18fractures18Fractura18Carotte20drill cores20Testigo20GibbsiteNZ22gibbsiteNZ22GibsitaNZ22BrésilNG61BrazilNG61BrasilNG61GoiasNG62Goias BrazilNG62GoiasNG62Roche plutoniqueNVplutonic rocksNVRoca granudaNVRoche ignéeNVigneous rocksNVRoca igneaNVRoche sédimentaireNVsedimentary rocksNVRoca sedimentariaNVPlagioclaseNZplagioclaseNZPlagioclasaNZFeldspathNZfeldsparNZFeldespatoNZTectosilicateNZframework silicatesNZSilicateNZsilicatesNZSilicatoNZHydroxydeNZhydroxidesNZHidróxidoNZOxydeNZoxidesNZÓxidoNZAmérique du Sud564South America564America del sur564016PASCAL 12-0035743 INISTBauxitisation of anorthosites from Central BrazilDE OLIVEIRA (Fabio Soares); DRUMMOND CHICARINO VARAJAO (Angélica Fortes); CHICARINO VARAJAO (Cesar Augusto); BOULANGE (Bruno); SOUZA GOMES (Newton)Departamento de Geologia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, s/n/Ouro Preto, 35400-000 MG/Brésil (1 aut., 2 aut., 3 aut., 5 aut.); Instituto de Geociências, Departamento de Geografia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627/Belo Horizonte, 31270-901 MG/Brésil (1 aut.); Musee de la Bauxite/Tourves/France (4 aut.)
Publication en série; Niveau analytique
Geoderma : (Amsterdam); ISSN 0016-7061; Coden GEDMAB; Pays-Bas; Da. 2011; Vol. 167-168; Pp. 319-327; Bibl. 1/4 p.AnglaisPetrological studies using X-ray diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, scanning electron microscopy (SEM-EDS) and electron microprobe analyzer (WDS) showed the mineralogical, micromorphological and geochemical transformations due to the bauxitisation of anorthosite from the Barro Alto Stratiform Mafic-Ultramafic Complex (Central Brazil). The hydrolytic alteration of the anorthosite occurred in two different stages in accordance with the order of stability of the minerals to the weathering: firstly the bytownite and secondly the ferromagnesian minerals. The weathering solutions, benefited from the existing network of fractures, percolated the weakness zones of the minerals characterising the microsystem of contact in which cores of plagioclase and ferromagnesian minerals were formed. In the first stage, the plagioclases are altered directly to gibbsite, and at an early stage, during the change process, the gibbsite crystals surround the primary ferromagnesian minerals that are totally or partially preserved. The transformation is isalteritic and is responsible for formation of porous alteromorphs consisting of septa of coarse gibbsite and fine gibbsite. As the weathering process advances, the ferromagnesian minerals directly enter to goethite. The boxworks of gibbsite and goethite characterise a primary plasmic microsystem.002A32; 001E01P03; 001E01B03; 226C03; 220B03Diffraction RX; Fluorescence RX; Microscopie optique; Microscopie électronique balayage; Microsonde électronique; Sol; Micromorphologie; Anorthosite; Bauxite; Roche ultramafique; Hydrolyse; Altération météorique; Donnée MEB; Bytownite; Fracture; Carotte; Gibbsite; Brésil; GoiasRoche plutonique; Roche ignée; Roche sédimentaire; Plagioclase; Feldspath; Tectosilicate; Silicate; Hydroxyde; Oxyde; Amérique du SudX-ray diffraction; X-ray fluorescence; Optical microscopy; scanning electron microscopy; electron probe; soils; micromorphology; anorthosite; bauxite; ultramafics; hydrolysis; weathering; SEM data; bytownite; fractures; drill cores; gibbsite; Brazil; Goias Brazilplutonic rocks; igneous rocks; sedimentary rocks; plagioclase; feldspar; framework silicates; silicates; hydroxides; oxides; South AmericaDifracción RX; Fluorescencia RX; Microscopía óptica; Microsonda electrónica; Suelo; Micromorfología; Anortosita; Bauxita; Hidrólisis; Alteración meteórica; Dato MEB; Bitownita; Fractura; Testigo; Gibsita; Brasil; GoiasINIST-3607.35400050735878034012-0035743 001B50 Glutathione Peroxidases at Work on Epididymal Spermatozoa: An Example of the Dual Effect of Reactive Oxygen Species on Mammalian Male Fertilizing AbilityAnais NoblancGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Ayhan KocerGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Eleonore ChaboryLaboratoire de Biologie de la Reproduction, Assistance Médicale a la Procréation, BIOMNISLyonFRA3 aut.Patrick VernetGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Fabrice SaezGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Remi CadetGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Marcus ConradDZNE-German Center for Neurodegenerative DiseasesMunichDEU7 aut.Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental GeneticsNeuherbergDEU7 aut.Joel R. DrevetGReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.12-00370982011PASCAL 12-0037098 INISTPascal:12-0037098000D440196-3635J. androl.Journal of andrologyEpididymisGlutathione peroxidaseLipidsMaleMale genital systemMammaliaOxidationPeroxidationReproductionSpermatozoaGlutathione peroxidaseEpididymeSpermatozoïdeMâleLipidePeroxydationOxydationAppareil génital mâleReproductionMammalia
The mammalian glutathione peroxidase (GPx) gene family encodes bifunctional enzymes that can work either as classical reactive oxygen species (ROS) scavengers or as thiol peroxidases, thereby introducing disulfide bridges in thiol-containing proteins. These dual effects are nowhere better demonstrated than in epididymal maturing spermatozoa, where the concomitant actions of several GPx ensure the achievement of the structural maturation of sperm cells as well as their protection against ROS-induced damage. We review here the roles played by the sperm-associated forms of GPx4 (mitochondrial GPx4 and nuclear GPx4), the secreted GPx5 protein, and the epithelial proteins GPx1, GPx3, and cellular GPx4, all functioning in the mammalian epididymis at different stages of the sperm's epididymal journey, and in different epididymis compartments.
0196-3635JOAND3J. androl.326Glutathione Peroxidases at Work on Epididymal Spermatozoa: An Example of the Dual Effect of Reactive Oxygen Species on Mammalian Male Fertilizing AbilityThe Epididymis: Present Progress. Future DirectionsNOBLANC (Anais)KOCER (Ayhan)CHABORY (Eleonore)VERNET (Patrick)SAEZ (Fabrice)CADET (Remi)CONRAD (Marcus)DREVET (Joel R.)AVELLAR (Maria Christina W.)ed.CUASNICU (Patricia S.)ed.GReD "Genetics, Reproduction and Development" Laboratory, Clermont UniversitéAubièreFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.Laboratoire de Biologie de la Reproduction, Assistance Médicale a la Procréation, BIOMNISLyonFRA3 aut.DZNE-German Center for Neurodegenerative DiseasesMunichDEU7 aut.Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental GeneticsNeuherbergDEU7 aut.Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)São PauloBRA1 aut.Instituto de Biologia y Medicina Experimental (IBYME-CONICET)Buenos AiresARG2 aut.641-6502011ENGINIST188963540005072360100900000© 2012 INIST-CNRS. All rights reserved.1 p.3/412-0037098PCAJournal of andrologyUSAThe mammalian glutathione peroxidase (GPx) gene family encodes bifunctional enzymes that can work either as classical reactive oxygen species (ROS) scavengers or as thiol peroxidases, thereby introducing disulfide bridges in thiol-containing proteins. These dual effects are nowhere better demonstrated than in epididymal maturing spermatozoa, where the concomitant actions of several GPx ensure the achievement of the structural maturation of sperm cells as well as their protection against ROS-induced damage. We review here the roles played by the sperm-associated forms of GPx4 (mitochondrial GPx4 and nuclear GPx4), the secreted GPx5 protein, and the epithelial proteins GPx1, GPx3, and cellular GPx4, all functioning in the mammalian epididymis at different stages of the sperm's epididymal journey, and in different epididymis compartments.002B20B002A29DGlutathione peroxidaseFE01Glutathione peroxidaseFE01Glutathione peroxidaseFE01Epididyme02Epididymis02Epidídimo02Spermatozoïde03Spermatozoa03Espermatozoide03Mâle04Male04Macho04Lipide07Lipids07Lípido07Peroxydation08Peroxidation08Peroxidación08Oxydation13Oxidation13Oxidación13Appareil génital mâle14Male genital system14Aparato genital macho14Reproduction15Reproduction15Reproducción15MammaliaNS69MammaliaNS69MammaliaNS69PeroxidasesFEPeroxidasesFEPeroxidasesFEOxidoreductasesFEOxidoreductasesFEOxidoreductasesFEEnzymeFEEnzymeFEEnzimaFEVoie génitale mâle20Male genital duct20Tracto genital masculino20Cellule germinale21Germinal cell21Célula germinal21VertebrataNSVertebrataNSVertebrataNS016OTOOTOInternational Conference on the Epididymis (Epididymis V)5Águas de São Pedro, São Paulo BRA2010-10-25PASCAL 12-0037098 INISTGlutathione Peroxidases at Work on Epididymal Spermatozoa: An Example of the Dual Effect of Reactive Oxygen Species on Mammalian Male Fertilizing AbilityNOBLANC (Anais); KOCER (Ayhan); CHABORY (Eleonore); VERNET (Patrick); SAEZ (Fabrice); CADET (Remi); CONRAD (Marcus); DREVET (Joel R.); AVELLAR (Maria Christina W.); CUASNICU (Patricia S.)GReD "Genetics, Reproduction and Development" Laboratory, Clermont Université/Aubière/France (1 aut., 2 aut., 4 aut., 5 aut., 6 aut., 8 aut.); Laboratoire de Biologie de la Reproduction, Assistance Médicale a la Procréation, BIOMNIS/Lyon/France (3 aut.); DZNE-German Center for Neurodegenerative Diseases/Munich/Allemagne (7 aut.); Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics/Neuherberg/Allemagne (7 aut.); Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)/São Paulo/Brésil (1 aut.); Instituto de Biologia y Medicina Experimental (IBYME-CONICET)/Buenos Aires/Argentine (2 aut.)
Publication en série; Congrès; Niveau analytique
Journal of andrology; ISSN 0196-3635; Coden JOAND3; Etats-Unis; Da. 2011; Vol. 32; No. 6; Pp. 641-650; Bibl. 1 p.3/4AnglaisThe mammalian glutathione peroxidase (GPx) gene family encodes bifunctional enzymes that can work either as classical reactive oxygen species (ROS) scavengers or as thiol peroxidases, thereby introducing disulfide bridges in thiol-containing proteins. These dual effects are nowhere better demonstrated than in epididymal maturing spermatozoa, where the concomitant actions of several GPx ensure the achievement of the structural maturation of sperm cells as well as their protection against ROS-induced damage. We review here the roles played by the sperm-associated forms of GPx4 (mitochondrial GPx4 and nuclear GPx4), the secreted GPx5 protein, and the epithelial proteins GPx1, GPx3, and cellular GPx4, all functioning in the mammalian epididymis at different stages of the sperm's epididymal journey, and in different epididymis compartments.002B20B; 002A29DGlutathione peroxidase; Epididyme; Spermatozoïde; Mâle; Lipide; Peroxydation; Oxydation; Appareil génital mâle; Reproduction; MammaliaPeroxidases; Oxidoreductases; Enzyme; Voie génitale mâle; Cellule germinale; VertebrataGlutathione peroxidase; Epididymis; Spermatozoa; Male; Lipids; Peroxidation; Oxidation; Male genital system; Reproduction; MammaliaPeroxidases; Oxidoreductases; Enzyme; Male genital duct; Germinal cell; VertebrataGlutathione peroxidase; Epidídimo; Espermatozoide; Macho; Lípido; Peroxidación; Oxidación; Aparato genital macho; Reproducción; MammaliaINIST-18896.35400050723601009012-0037098 001B51 The Epididymal Transcriptome and Proteome Provide Some Insights Into New Epididymal RegulationsBenoît GuyonnetInstitut National de la Recherche Agronomique (INRA)FRA1 aut.2 aut.3 aut.4 aut.Centre National de la Recherche Scientifique (CNRS)FRA1 aut.2 aut.3 aut.4 aut.Université de ToursFRA1 aut.2 aut.3 aut.4 aut.Haras Nationaux, Physiologie de la Reproduction et des ComportementsNouzillyFRA1 aut.2 aut.3 aut.4 aut.Françoise DacheuxInstitut National de la Recherche Agronomique (INRA)FRA1 aut.2 aut.3 aut.4 aut.Centre National de la Recherche Scientifique (CNRS)FRA1 aut.2 aut.3 aut.4 aut.Université de ToursFRA1 aut.2 aut.3 aut.4 aut.Haras Nationaux, Physiologie de la Reproduction et des ComportementsNouzillyFRA1 aut.2 aut.3 aut.4 aut.Jean-Louis DacheuxInstitut National de la Recherche Agronomique (INRA)FRA1 aut.2 aut.3 aut.4 aut.Centre National de la Recherche Scientifique (CNRS)FRA1 aut.2 aut.3 aut.4 aut.Université de ToursFRA1 aut.2 aut.3 aut.4 aut.Haras Nationaux, Physiologie de la Reproduction et des ComportementsNouzillyFRA1 aut.2 aut.3 aut.4 aut.Jean-Luc GattiInstitut National de la Recherche Agronomique (INRA)FRA1 aut.2 aut.3 aut.4 aut.Centre National de la Recherche Scientifique (CNRS)FRA1 aut.2 aut.3 aut.4 aut.Université de ToursFRA1 aut.2 aut.3 aut.4 aut.Haras Nationaux, Physiologie de la Reproduction et des ComportementsNouzillyFRA1 aut.2 aut.3 aut.4 aut.12-00371032011PASCAL 12-0037103 INISTPascal:12-0037103000D430196-3635J. androl.Journal of andrologyBiological transportEpididymisMale genital systemReabsorptionReproductionSpermatozoaVitamin DEpididymeSpermatozoïdeTransport biologiqueRéabsorptionVitamine DAppareil génital mâleReproduction
Once shed from their fostering Sertoli cells, spermatozoa leave the testis and are transported passively by seminiferous fluid through the rete testis. Then, these immature cells enter the complex efferent duct system that is joined to the unique and convoluted epididymal duct. This epididymal duct, lined by a continuous layer of epithelial cells joined by tight junctions, is a tube several meters long (up to 60 m in domestic mammals) and forms an organ that is classically subdivided into 3 major anatomical regions: the head/caput, the corpus/body, and the tail/cauda. Spermatozoa travel throughout the duct for several days to weeks, depending on the species, and may be stored for even longer periods in the cauda part of the epididymis and vas deferens. During their journey the proportion of potentially "mature" spermatozoa increases, but it is only when they reach the cauda epididymidis that almost all spermatozoa have acquired their natural fertilizing ability, which involves progressive motility, the ability to undergo the postejaculatory events (capacitation and hyperactivation), and the capacity to recognize and to bind to the oocyte investments and egg plasma membrane. Recent secretomic, proteomic, and transcriptomic studies have provided new information on the functions and the regionalization of the epididymis and revealed some insights into the complexity of epididymal fluid. Among genes and proteins highly expressed by this tissue, many have roles related to sperm protection (such as oxidation), but a large number of new compounds related to innate immunity have also been discovered. This review will focus on possible new control mechanisms that these studies have suggested for this tissue.
0196-3635JOAND3J. androl.326The Epididymal Transcriptome and Proteome Provide Some Insights Into New Epididymal RegulationsThe Epididymis: Present Progress. Future DirectionsGUYONNET (Benoît)DACHEUX (Françoise)DACHEUX (Jean-Louis)GATTI (Jean-Luc)AVELLAR (Maria Christina W.)ed.CUASNICU (Patricia S.)ed.Institut National de la Recherche Agronomique (INRA)FRA1 aut.2 aut.3 aut.4 aut.Centre National de la Recherche Scientifique (CNRS)FRA1 aut.2 aut.3 aut.4 aut.Université de ToursFRA1 aut.2 aut.3 aut.4 aut.Haras Nationaux, Physiologie de la Reproduction et des ComportementsNouzillyFRA1 aut.2 aut.3 aut.4 aut.Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)São PauloBRA1 aut.Instituto de Biologia y Medicina Experimental (IBYME-CONICET)Buenos AiresARG2 aut.651-6642011ENGINIST188963540005072360101000000© 2012 INIST-CNRS. All rights reserved.3 p.1/412-0037103PCAJournal of andrologyUSAOnce shed from their fostering Sertoli cells, spermatozoa leave the testis and are transported passively by seminiferous fluid through the rete testis. Then, these immature cells enter the complex efferent duct system that is joined to the unique and convoluted epididymal duct. This epididymal duct, lined by a continuous layer of epithelial cells joined by tight junctions, is a tube several meters long (up to 60 m in domestic mammals) and forms an organ that is classically subdivided into 3 major anatomical regions: the head/caput, the corpus/body, and the tail/cauda. Spermatozoa travel throughout the duct for several days to weeks, depending on the species, and may be stored for even longer periods in the cauda part of the epididymis and vas deferens. During their journey the proportion of potentially "mature" spermatozoa increases, but it is only when they reach the cauda epididymidis that almost all spermatozoa have acquired their natural fertilizing ability, which involves progressive motility, the ability to undergo the postejaculatory events (capacitation and hyperactivation), and the capacity to recognize and to bind to the oocyte investments and egg plasma membrane. Recent secretomic, proteomic, and transcriptomic studies have provided new information on the functions and the regionalization of the epididymis and revealed some insights into the complexity of epididymal fluid. Among genes and proteins highly expressed by this tissue, many have roles related to sperm protection (such as oxidation), but a large number of new compounds related to innate immunity have also been discovered. This review will focus on possible new control mechanisms that these studies have suggested for this tissue.002B20B002A29DEpididyme01Epididymis01Epidídimo01Spermatozoïde02Spermatozoa02Espermatozoide02Transport biologique03Biological transport03Transporte biológico03Réabsorption04Reabsorption04Reabsorción04Vitamine DNKFR07Vitamin DNKFR07Vitamina DNKFR07Appareil génital mâle08Male genital system08Aparato genital macho08Reproduction13Reproduction13Reproducción13Voie génitale mâle20Male genital duct20Tracto genital masculino20Cellule germinale21Germinal cell21Célula germinal21Micronutriment22Micronutrient22Micronutriente22016OTOOTOInternational Conference on the Epididymis (Epididymis V)5Águas de São Pedro, São Paulo BRA2010-10-25PASCAL 12-0037103 INISTThe Epididymal Transcriptome and Proteome Provide Some Insights Into New Epididymal RegulationsGUYONNET (Benoît); DACHEUX (Françoise); DACHEUX (Jean-Louis); GATTI (Jean-Luc); AVELLAR (Maria Christina W.); CUASNICU (Patricia S.)Institut National de la Recherche Agronomique (INRA)/France (1 aut., 2 aut., 3 aut., 4 aut.); Centre National de la Recherche Scientifique (CNRS)/France (1 aut., 2 aut., 3 aut., 4 aut.); Université de Tours/France (1 aut., 2 aut., 3 aut., 4 aut.); Haras Nationaux, Physiologie de la Reproduction et des Comportements/Nouzilly/France (1 aut., 2 aut., 3 aut., 4 aut.); Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)/São Paulo/Brésil (1 aut.); Instituto de Biologia y Medicina Experimental (IBYME-CONICET)/Buenos Aires/Argentine (2 aut.)
Publication en série; Congrès; Niveau analytique
Journal of andrology; ISSN 0196-3635; Coden JOAND3; Etats-Unis; Da. 2011; Vol. 32; No. 6; Pp. 651-664; Bibl. 3 p.1/4AnglaisOnce shed from their fostering Sertoli cells, spermatozoa leave the testis and are transported passively by seminiferous fluid through the rete testis. Then, these immature cells enter the complex efferent duct system that is joined to the unique and convoluted epididymal duct. This epididymal duct, lined by a continuous layer of epithelial cells joined by tight junctions, is a tube several meters long (up to 60 m in domestic mammals) and forms an organ that is classically subdivided into 3 major anatomical regions: the head/caput, the corpus/body, and the tail/cauda. Spermatozoa travel throughout the duct for several days to weeks, depending on the species, and may be stored for even longer periods in the cauda part of the epididymis and vas deferens. During their journey the proportion of potentially "mature" spermatozoa increases, but it is only when they reach the cauda epididymidis that almost all spermatozoa have acquired their natural fertilizing ability, which involves progressive motility, the ability to undergo the postejaculatory events (capacitation and hyperactivation), and the capacity to recognize and to bind to the oocyte investments and egg plasma membrane. Recent secretomic, proteomic, and transcriptomic studies have provided new information on the functions and the regionalization of the epididymis and revealed some insights into the complexity of epididymal fluid. Among genes and proteins highly expressed by this tissue, many have roles related to sperm protection (such as oxidation), but a large number of new compounds related to innate immunity have also been discovered. This review will focus on possible new control mechanisms that these studies have suggested for this tissue.002B20B; 002A29DEpididyme; Spermatozoïde; Transport biologique; Réabsorption; Vitamine D; Appareil génital mâle; ReproductionVoie génitale mâle; Cellule germinale; MicronutrimentEpididymis; Spermatozoa; Biological transport; Reabsorption; Vitamin D; Male genital system; ReproductionMale genital duct; Germinal cell; MicronutrientEpidídimo; Espermatozoide; Transporte biológico; Reabsorción; Vitamina D; Aparato genital macho; ReproducciónINIST-18896.35400050723601010012-0037103 001B52 Monotremes Provide a Key to Understanding the Evolutionary Significance of Epididymal Sperm MaturationBrett NixonSchool of Environmental and Life Sciences, University of NewcastleCallaghanAUS1 aut.4 aut.Heath W. EcroydSchool of Biological Sciences, Faculty of Sciences, University of WollongongWollongongAUS2 aut.Jean-Louis DacheuxGamètes Males et Fertilité, Station de Physiologie de la Reproduction et des ComportementsINRA-NouzillyFRA3 aut.Russell C. JonesSchool of Environmental and Life Sciences, University of NewcastleCallaghanAUS1 aut.4 aut.12-00371122011PASCAL 12-0037112 INISTPascal:12-0037112000D420196-3635J. androl.Journal of andrologyEpididymisMale genital systemReproductionSpermatozoaEpididymeSpermatozoïdeAppareil génital mâleReproduction
It has been widely accepted that mammalian spermatozoa are infertile when they leave the testes and require a period of maturation in both the epididymis and the female reproductive tract before acquiring the ability to fertilize an oocyte. However, the necessity for such a complex process of posttesticular sperm maturation appears to be unique to mammals because it is well established that these processes do not directly influence the fertilizing ability of the spermatozoa of birds, reptiles, and other lower vertebrates. Because of their key evolutionary position and form of reproduction, we contend that monotremes (platypus and echidna) provide a unique model for resolving why these processes are necessary. In the present review, we examine evidence that the epididymal maturation of monotreme spermatozoa is far less complex than in other mammals. However, a unique feature of the monotreme epididymis lies in its ability to promote the formation of elaborate sperm bundles that serve to greatly enhance the cells' motility. It is suggested that this intriguing cooperative strategy used by monotreme sperm represents an early form of epididymal maturation that appears to have been elaborated upon during the evolution of higher mammals, possibly as an adaptation for sperm competition.
0196-3635JOAND3J. androl.326Monotremes Provide a Key to Understanding the Evolutionary Significance of Epididymal Sperm MaturationThe Epididymis: Present Progress. Future DirectionsNIXON (Brett)ECROYD (Heath W.)DACHEUX (Jean-Louis)JONES (Russell C.)AVELLAR (Maria Christina W.)ed.CUASNICU (Patricia S.)ed.School of Environmental and Life Sciences, University of NewcastleCallaghanAUS1 aut.4 aut.School of Biological Sciences, Faculty of Sciences, University of WollongongWollongongAUS2 aut.Gamètes Males et Fertilité, Station de Physiologie de la Reproduction et des ComportementsINRA-NouzillyFRA3 aut.Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)São PauloBRA1 aut.Instituto de Biologia y Medicina Experimental (IBYME-CONICET)Buenos AiresARG2 aut.665-6712011ENGINIST188963540005072360101100000© 2012 INIST-CNRS. All rights reserved.1 p.3/412-0037112PCAJournal of andrologyUSAIt has been widely accepted that mammalian spermatozoa are infertile when they leave the testes and require a period of maturation in both the epididymis and the female reproductive tract before acquiring the ability to fertilize an oocyte. However, the necessity for such a complex process of posttesticular sperm maturation appears to be unique to mammals because it is well established that these processes do not directly influence the fertilizing ability of the spermatozoa of birds, reptiles, and other lower vertebrates. Because of their key evolutionary position and form of reproduction, we contend that monotremes (platypus and echidna) provide a unique model for resolving why these processes are necessary. In the present review, we examine evidence that the epididymal maturation of monotreme spermatozoa is far less complex than in other mammals. However, a unique feature of the monotreme epididymis lies in its ability to promote the formation of elaborate sperm bundles that serve to greatly enhance the cells' motility. It is suggested that this intriguing cooperative strategy used by monotreme sperm represents an early form of epididymal maturation that appears to have been elaborated upon during the evolution of higher mammals, possibly as an adaptation for sperm competition.002B20B002A29DEpididyme01Epididymis01Epidídimo01Spermatozoïde02Spermatozoa02Espermatozoide02Appareil génital mâle03Male genital system03Aparato genital macho03Reproduction04Reproduction04Reproducción04Voie génitale mâle20Male genital duct20Tracto genital masculino20Cellule germinale21Germinal cell21Célula germinal21016OTOOTOInternational Conference on the Epididymis (Epididymis V)5Águas de São Pedro, São Paulo BRA2010-10-25PASCAL 12-0037112 INISTMonotremes Provide a Key to Understanding the Evolutionary Significance of Epididymal Sperm MaturationNIXON (Brett); ECROYD (Heath W.); DACHEUX (Jean-Louis); JONES (Russell C.); AVELLAR (Maria Christina W.); CUASNICU (Patricia S.)School of Environmental and Life Sciences, University of Newcastle/Callaghan/Australie (1 aut., 4 aut.); School of Biological Sciences, Faculty of Sciences, University of Wollongong/Wollongong/Australie (2 aut.); Gamètes Males et Fertilité, Station de Physiologie de la Reproduction et des Comportements/INRA-Nouzilly/France (3 aut.); Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)/São Paulo/Brésil (1 aut.); Instituto de Biologia y Medicina Experimental (IBYME-CONICET)/Buenos Aires/Argentine (2 aut.)
Publication en série; Congrès; Niveau analytique
Journal of andrology; ISSN 0196-3635; Coden JOAND3; Etats-Unis; Da. 2011; Vol. 32; No. 6; Pp. 665-671; Bibl. 1 p.3/4AnglaisIt has been widely accepted that mammalian spermatozoa are infertile when they leave the testes and require a period of maturation in both the epididymis and the female reproductive tract before acquiring the ability to fertilize an oocyte. However, the necessity for such a complex process of posttesticular sperm maturation appears to be unique to mammals because it is well established that these processes do not directly influence the fertilizing ability of the spermatozoa of birds, reptiles, and other lower vertebrates. Because of their key evolutionary position and form of reproduction, we contend that monotremes (platypus and echidna) provide a unique model for resolving why these processes are necessary. In the present review, we examine evidence that the epididymal maturation of monotreme spermatozoa is far less complex than in other mammals. However, a unique feature of the monotreme epididymis lies in its ability to promote the formation of elaborate sperm bundles that serve to greatly enhance the cells' motility. It is suggested that this intriguing cooperative strategy used by monotreme sperm represents an early form of epididymal maturation that appears to have been elaborated upon during the evolution of higher mammals, possibly as an adaptation for sperm competition.002B20B; 002A29DEpididyme; Spermatozoïde; Appareil génital mâle; ReproductionVoie génitale mâle; Cellule germinaleEpididymis; Spermatozoa; Male genital system; ReproductionMale genital duct; Germinal cellEpidídimo; Espermatozoide; Aparato genital macho; ReproducciónINIST-18896.35400050723601011012-0037112 001B53 Gene Expression in the Epididymis of Normal and Vasectomized Men: What Can We Learn About Human Sperm Maturation?Robert SullivanCentre de Recherche du Centre Hospitalier de l'Université Laval and Département d'Obstétrique-GynécologieUSA1 aut.2 aut.Christine LegareCentre de Recherche du Centre Hospitalier de l'Université Laval and Département d'Obstétrique-GynécologieUSA1 aut.2 aut.Michel ThabetDépartement d'Urologie, Faculté de Médecine, Université LavalQuebec CityCAN3 aut.Véronique ThimonDépartement de Biologie, Université de la MartiniqueMartiniqueFRA4 aut.12-00371132011PASCAL 12-0037113 INISTPascal:12-0037113000D410196-3635J. androl.Journal of andrologyEpididymisGene expressionHumanMaleMale genital systemReproductionSpermatozoaExpression géniqueEpididymeMâleSpermatozoïdeAppareil génital mâleReproductionHomme
Anatomically, the human epididymis is unusual when compared with the excurrent duct of other eutherian mammals. Furthermore, clinical observations suggest that it may not be as important for sperm maturation as is the case for laboratory animals. In contrast, hierarchical clustering of microarray data of epididymides from normal men revealed 2274 modulated qualifiers between the epididymal segments, 1184, 713, and 269 of them being highly expressed in the caput, corpus, and cauda, respectively. The organization of qualifiers according to their similarities by gene ontology indicated that caput transcripts are dedicated to cell-cell adhesion, whereas the corpus is characterized by genes involved in response to other organisms (ie, defense mechanisms) and the cauda transcriptome is specialized in muscle contraction and establishment of localization. A region-specific gene expression pattern thus characterizes the human epididymis as in animal models. In humans, vasectomies have consequences on the epididymal transcriptome. Cluster analysis revealed that 1363 genes are expressed in both normal and vasectomized epididymides, whereas 911 and 660 of them are specifically expressed in normal and vasectomized epididymides, respectively. Three of the affected genes are particularly interesting because of their involvement in sperm biochemical remodeling during epididymal transit: dicarbonyl/L-xylulose reductase, Niemann-Pick disease, type C2, and cysteine-rich secretory protein 1. In some vasovasostomized men, these modifications in gene expression induced by vasectomy are irreversible, thus affecting the biochemical parameters, and potentially, the function of their ejaculated sperm. This may explain the discrepancies between a surgically successful vasovasostomy and fertility recovery.
0196-3635JOAND3J. androl.326Gene Expression in the Epididymis of Normal and Vasectomized Men: What Can We Learn About Human Sperm Maturation?The Epididymis: Present Progress. Future DirectionsSULLIVAN (Robert)LEGARE (Christine)THABET (Michel)THIMON (Véronique)AVELLAR (Maria Christina W.)ed.CUASNICU (Patricia S.)ed.Centre de Recherche du Centre Hospitalier de l'Université Laval and Département d'Obstétrique-GynécologieUSA1 aut.2 aut.Département d'Urologie, Faculté de Médecine, Université LavalQuebec CityCAN3 aut.Département de Biologie, Université de la MartiniqueMartiniqueFRA4 aut.Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)São PauloBRA1 aut.Instituto de Biologia y Medicina Experimental (IBYME-CONICET)Buenos AiresARG2 aut.686-6972011ENGINIST188963540005072360101400000© 2012 INIST-CNRS. All rights reserved.2 p.1/412-0037113PCAJournal of andrologyUSAAnatomically, the human epididymis is unusual when compared with the excurrent duct of other eutherian mammals. Furthermore, clinical observations suggest that it may not be as important for sperm maturation as is the case for laboratory animals. In contrast, hierarchical clustering of microarray data of epididymides from normal men revealed 2274 modulated qualifiers between the epididymal segments, 1184, 713, and 269 of them being highly expressed in the caput, corpus, and cauda, respectively. The organization of qualifiers according to their similarities by gene ontology indicated that caput transcripts are dedicated to cell-cell adhesion, whereas the corpus is characterized by genes involved in response to other organisms (ie, defense mechanisms) and the cauda transcriptome is specialized in muscle contraction and establishment of localization. A region-specific gene expression pattern thus characterizes the human epididymis as in animal models. In humans, vasectomies have consequences on the epididymal transcriptome. Cluster analysis revealed that 1363 genes are expressed in both normal and vasectomized epididymides, whereas 911 and 660 of them are specifically expressed in normal and vasectomized epididymides, respectively. Three of the affected genes are particularly interesting because of their involvement in sperm biochemical remodeling during epididymal transit: dicarbonyl/L-xylulose reductase, Niemann-Pick disease, type C2, and cysteine-rich secretory protein 1. In some vasovasostomized men, these modifications in gene expression induced by vasectomy are irreversible, thus affecting the biochemical parameters, and potentially, the function of their ejaculated sperm. This may explain the discrepancies between a surgically successful vasovasostomy and fertility recovery.002B20B002A29DExpression génique01Gene expression01Expresión genética01Epididyme02Epididymis02Epidídimo02Mâle03Male03Macho03Spermatozoïde04Spermatozoa04Espermatozoide04Appareil génital mâle07Male genital system07Aparato genital macho07Reproduction08Reproduction08Reproducción08Homme72Human72Hombre72Voie génitale mâle20Male genital duct20Tracto genital masculino20Cellule germinale21Germinal cell21Célula germinal21016OTOOTOInternational Conference on the Epididymis (Epididymis V)5Águas de São Pedro, São Paulo BRA2010-10-25PASCAL 12-0037113 INISTGene Expression in the Epididymis of Normal and Vasectomized Men: What Can We Learn About Human Sperm Maturation?SULLIVAN (Robert); LEGARE (Christine); THABET (Michel); THIMON (Véronique); AVELLAR (Maria Christina W.); CUASNICU (Patricia S.)Centre de Recherche du Centre Hospitalier de l'Université Laval and Département d'Obstétrique-Gynécologie/Etats-Un is (1 aut., 2 aut.); Département d'Urologie, Faculté de Médecine, Université Laval/Quebec City/Canada (3 aut.); Département de Biologie, Université de la Martinique/Martinique/France (4 aut.); Section of Experimental Endocrinology, Department of Pharmacology, Universidade Federal de São Paulo-Escola Paulista de medicina (UNIFESP)/São Paulo/Brésil (1 aut.); Instituto de Biologia y Medicina Experimental (IBYME-CONICET)/Buenos Aires/Argentine (2 aut.)
Publication en série; Congrès; Niveau analytique
Journal of andrology; ISSN 0196-3635; Coden JOAND3; Etats-Unis; Da. 2011; Vol. 32; No. 6; Pp. 686-697; Bibl. 2 p.1/4AnglaisAnatomically, the human epididymis is unusual when compared with the excurrent duct of other eutherian mammals. Furthermore, clinical observations suggest that it may not be as important for sperm maturation as is the case for laboratory animals. In contrast, hierarchical clustering of microarray data of epididymides from normal men revealed 2274 modulated qualifiers between the epididymal segments, 1184, 713, and 269 of them being highly expressed in the caput, corpus, and cauda, respectively. The organization of qualifiers according to their similarities by gene ontology indicated that caput transcripts are dedicated to cell-cell adhesion, whereas the corpus is characterized by genes involved in response to other organisms (ie, defense mechanisms) and the cauda transcriptome is specialized in muscle contraction and establishment of localization. A region-specific gene expression pattern thus characterizes the human epididymis as in animal models. In humans, vasectomies have consequences on the epididymal transcriptome. Cluster analysis revealed that 1363 genes are expressed in both normal and vasectomized epididymides, whereas 911 and 660 of them are specifically expressed in normal and vasectomized epididymides, respectively. Three of the affected genes are particularly interesting because of their involvement in sperm biochemical remodeling during epididymal transit: dicarbonyl/L-xylulose reductase, Niemann-Pick disease, type C2, and cysteine-rich secretory protein 1. In some vasovasostomized men, these modifications in gene expression induced by vasectomy are irreversible, thus affecting the biochemical parameters, and potentially, the function of their ejaculated sperm. This may explain the discrepancies between a surgically successful vasovasostomy and fertility recovery.002B20B; 002A29DExpression génique; Epididyme; Mâle; Spermatozoïde; Appareil génital mâle; Reproduction; HommeVoie génitale mâle; Cellule germinaleGene expression; Epididymis; Male; Spermatozoa; Male genital system; Reproduction; HumanMale genital duct; Germinal cellExpresión genética; Epidídimo; Macho; Espermatozoide; Aparato genital macho; Reproducción; HombreINIST-18896.35400050723601014012-0037113 001B54 Building a mutant resource for the study of disease resistance in rice reveals the pivotal role of several genes involved in defenceAmandine DelteilUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Mélisande BleinUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Odile Faivre-RampantRice Genomics Unit, Parco Tecnologico Padano, via Einstein26900 LodiITA3 aut.Amira GuellimUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Joan EstevanUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Judith HirschUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Rosangela BevitoriEMBRAPA Embrapa Arroz e Feijao, Rodovia GO 462, km 12, CP 17975375-000-Santo Antonio de Goiás-GOBRA7 aut.Corinne MichelUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Jean-Benoit MorelUMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.12-00393242012PASCAL 12-0039324 INISTPascal:12-0039324000D401464-6722Mol. plant pathol.Molecular plant pathologyDisease resistanceGeneMutationOryzaMutationGèneOryzaRésistance aux maladies
In Arabidopsis, gene expression studies and analysis of knock-out (KO) mutants have been instrumental in building an integrated view of disease resistance pathways. Such an integrated view is missing in rice where shared tools, including genes and mutants, must be assembled. This work provides a tool kit consisting of informative genes for the molecular characterization of the interaction of rice with the major fungal pathogen Magnaporthe oryzae. It also provides for a set of eight KO mutants, all in the same genotypic background, in genes involved in key steps of the rice disease resistance pathway. This study demonstrates the involvement of three genes, OsWRKY28, rTGA2.1 and NH1, in the establishment of full basal resistance to rice blast. The transcription factor OsWRKY28 acts as a negative regulator of basal resistance, like the orthologous barley gene. Finally, the up-regulation of the negative regulator OsWRKY28 and the down-regulation of PR gene expression early during M. oryzae infection suggest that the fungus possesses infection mechanisms that enable it to block host defences.
1464-6722Mol. plant pathol.131Building a mutant resource for the study of disease resistance in rice reveals the pivotal role of several genes involved in defenceDELTEIL (Amandine)BLEIN (Mélisande)FAIVRE-RAMPANT (Odile)GUELLIM (Amira)ESTEVAN (Joan)HIRSCH (Judith)BEVITORI (Rosangela)MICHEL (Corinne)MOREL (Jean-Benoit)UMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K34398 MontpellierFRA1 aut.2 aut.4 aut.5 aut.6 aut.8 aut.9 aut.Rice Genomics Unit, Parco Tecnologico Padano, via Einstein26900 LodiITA3 aut.EMBRAPA Embrapa Arroz e Feijao, Rodovia GO 462, km 12, CP 17975375-000-Santo Antonio de Goiás-GOBRA7 aut.72-822012ENGINIST275773540005056638000600000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0039324PAMolecular plant pathologyGBRIn Arabidopsis, gene expression studies and analysis of knock-out (KO) mutants have been instrumental in building an integrated view of disease resistance pathways. Such an integrated view is missing in rice where shared tools, including genes and mutants, must be assembled. This work provides a tool kit consisting of informative genes for the molecular characterization of the interaction of rice with the major fungal pathogen Magnaporthe oryzae. It also provides for a set of eight KO mutants, all in the same genotypic background, in genes involved in key steps of the rice disease resistance pathway. This study demonstrates the involvement of three genes, OsWRKY28, rTGA2.1 and NH1, in the establishment of full basal resistance to rice blast. The transcription factor OsWRKY28 acts as a negative regulator of basal resistance, like the orthologous barley gene. Finally, the up-regulation of the negative regulator OsWRKY28 and the down-regulation of PR gene expression early during M. oryzae infection suggest that the fungus possesses infection mechanisms that enable it to block host defences.002A34Mutation01Mutation01Mutación01Gène02Gene02Gen02OryzaNS10OryzaNS10OryzaNS10Résistance aux maladiesCD96Disease resistanceCD96Resistencia a la enfermedadCD96GramineaeNSGramineaeNSGramineaeNSMonocotyledonesNSMonocotyledonesNSMonocotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSPlante herbacée31Herbaceous plant31Planta herbácea31023OTOOTOPASCAL 12-0039324 INISTBuilding a mutant resource for the study of disease resistance in rice reveals the pivotal role of several genes involved in defenceDELTEIL (Amandine); BLEIN (Mélisande); FAIVRE-RAMPANT (Odile); GUELLIM (Amira); ESTEVAN (Joan); HIRSCH (Judith); BEVITORI (Rosangela); MICHEL (Corinne); MOREL (Jean-Benoit)UMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, TA A 54/K/34398 Montpellier/France (1 aut., 2 aut., 4 aut., 5 aut., 6 aut., 8 aut., 9 aut.); Rice Genomics Unit, Parco Tecnologico Padano, via Einstein/26900 Lodi/Italie (3 aut.); EMBRAPA Embrapa Arroz e Feijao, Rodovia GO 462, km 12, CP 179/75375-000-Santo Antonio de Goiás-GO/Brésil (7 aut.)
Publication en série; Niveau analytique
Molecular plant pathology; ISSN 1464-6722; Royaume-Uni; Da. 2012; Vol. 13; No. 1; Pp. 72-82; Bibl. 1 p.1/4AnglaisIn Arabidopsis, gene expression studies and analysis of knock-out (KO) mutants have been instrumental in building an integrated view of disease resistance pathways. Such an integrated view is missing in rice where shared tools, including genes and mutants, must be assembled. This work provides a tool kit consisting of informative genes for the molecular characterization of the interaction of rice with the major fungal pathogen Magnaporthe oryzae. It also provides for a set of eight KO mutants, all in the same genotypic background, in genes involved in key steps of the rice disease resistance pathway. This study demonstrates the involvement of three genes, OsWRKY28, rTGA2.1 and NH1, in the establishment of full basal resistance to rice blast. The transcription factor OsWRKY28 acts as a negative regulator of basal resistance, like the orthologous barley gene. Finally, the up-regulation of the negative regulator OsWRKY28 and the down-regulation of PR gene expression early during M. oryzae infection suggest that the fungus possesses infection mechanisms that enable it to block host defences.002A34Mutation; Gène; Oryza; Résistance aux maladiesGramineae; Monocotyledones; Angiospermae; Spermatophyta; Plante herbacéeMutation; Gene; Oryza; Disease resistanceGramineae; Monocotyledones; Angiospermae; Spermatophyta; Herbaceous plantMutación; Gen; Oryza; Resistencia a la enfermedadINIST-27577.35400050566380006012-0039324 001B55 Exogenous ghrelin attenuates endotoxin fever in ratsRenato N. SorianoNursing School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA1 aut.3 aut.Lelis G. NicoliDental School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA2 aut.4 aut.Evelin C. CarnioNursing School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA1 aut.3 aut.Luiz G. S. BrancoDental School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA2 aut.4 aut.12-00394212011PASCAL 12-0039421 INISTPascal:12-0039421000D390196-9781Peptides : (NY NY, 1980)Peptides : (New York, NY. 1980)AnimalBody temperatureEndotoxinFeverGhrelinInflammationLipopolysaccharideProstaglandin-endoperoxide synthaseRatGhrélineEndotoxineFièvreLipopolyosideTempérature corporelleProstaglandin-endoperoxide synthaseAnimalInflammationRat
Ghrelin is a gut-derived peptide that plays a role in energy homeostasis. Recent studies have implicated ghrelin in systemic inflammation, showing increased plasma ghrelin levels after endotoxin (lipopolysaccharide, LPS) administration. The aims of this study were (1) to test the hypothesis that ghrelin administration affects LPS-induced fever; and (2) to assess the putative effects of ghrelin on plasma corticosterone secretion and preoptic region prostaglandin (PG) E2 levels in euthermic and febrile rats. Rats were implanted with a temperature datalogger capsule in the peritoneal cavity to record body core temperature. One week later, they were challenged with LPS (50 μg/kg, intraperitoneal, i.p.) alone or combined with ghrelin (0.1 mg/kg, i.p.). In another group of rats, plasma corticosterone and preoptic region PGE2 levels were measured 2 h after injections. In euthermic animals, systemic administration of ghrelin failed to elicit any thermoregulatory effect, and caused no significant changes in basal plasma corticosterone and preoptic region PGE2 levels. LPS caused a typical febrile response, accompanied by increased plasma corticosterone and preoptic PGE2 levels. When LPS administration was combined with ghrelin fever was attenuated, corticosterone secretion further increased, and the elevated preoptic PGE2 levels were relatively reduced, but a correlation between these two variables (corticosterone and PGE2) failed to exist. The present data add ghrelin to the neurochemical milieu controlling the immune/thermoregulatory system acting as an antipyretic molecule. Moreover, our findings also support the notion that ghrelin attenuates fever by means of a direct effect of the peptide reducing PGE2 production in the preoptic region.
0196-9781PPTDD5Peptides : (NY NY, 1980)3211Exogenous ghrelin attenuates endotoxin fever in ratsGhrelinSORIANO (Renato N.)NICOLI (Lelis G.)CARNIO (Evelin C.)BRANCO (Luiz G. S.)VAUDRY (Hubert)ed.TACHE (Yvette)ed.Nursing School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA1 aut.3 aut.Dental School of Ribeirão Preto, University of São Paulo, Ribeirão PretoSão PauloBRA2 aut.4 aut.Inserm U982, Laboratory of Neuronal and Neuroendocrine Differentiation and Communication, International Associated Laboratory Samuel de Champlain, European Institute for Peptide Research (IFRM 23), University of Rouen76821 Mont-Saint-AignanFRA1 aut.David Geffen School of Medicine at UCLA, Digestive Diseases Research Center - Animal Core, VA Greater Los Angeles Healthcare System, 11301 Wilshire Boulevard, CURE Building 115, Room 117Los Angeles, CA 90073USA2 aut.2372-23762011ENGINIST190603540005056741202900000© 2012 INIST-CNRS. All rights reserved.38 ref.12-0039421PAPeptides : (New York, NY. 1980)USAGhrelin is a gut-derived peptide that plays a role in energy homeostasis. Recent studies have implicated ghrelin in systemic inflammation, showing increased plasma ghrelin levels after endotoxin (lipopolysaccharide, LPS) administration. The aims of this study were (1) to test the hypothesis that ghrelin administration affects LPS-induced fever; and (2) to assess the putative effects of ghrelin on plasma corticosterone secretion and preoptic region prostaglandin (PG) E2 levels in euthermic and febrile rats. Rats were implanted with a temperature datalogger capsule in the peritoneal cavity to record body core temperature. One week later, they were challenged with LPS (50 μg/kg, intraperitoneal, i.p.) alone or combined with ghrelin (0.1 mg/kg, i.p.). In another group of rats, plasma corticosterone and preoptic region PGE2 levels were measured 2 h after injections. In euthermic animals, systemic administration of ghrelin failed to elicit any thermoregulatory effect, and caused no significant changes in basal plasma corticosterone and preoptic region PGE2 levels. LPS caused a typical febrile response, accompanied by increased plasma corticosterone and preoptic PGE2 levels. When LPS administration was combined with ghrelin fever was attenuated, corticosterone secretion further increased, and the elevated preoptic PGE2 levels were relatively reduced, but a correlation between these two variables (corticosterone and PGE2) failed to exist. The present data add ghrelin to the neurochemical milieu controlling the immune/thermoregulatory system acting as an antipyretic molecule. Moreover, our findings also support the notion that ghrelin attenuates fever by means of a direct effect of the peptide reducing PGE2 production in the preoptic region.002A28Ghréline01Ghrelin01Grelina01Endotoxine02Endotoxin02Endotoxina02Fièvre03Fever03Fiebre03Lipopolyoside04Lipopolysaccharide04Lipopoliósido04Température corporelle07Body temperature07Temperatura corporal07Prostaglandin-endoperoxide synthaseFE08Prostaglandin-endoperoxide synthaseFE08Prostaglandin-endoperoxide synthaseFE08Animal10Animal10Animal10Inflammation13Inflammation13Inflamación13Rat69Rat69Rata69ToxineToxinToxinaOxidoreductasesFEOxidoreductasesFEOxidoreductasesFEEnzymeFEEnzymeFEEnzimaFERodentiaNSRodentiaNSRodentiaNSMammaliaNSMammaliaNSMammaliaNSVertebrataNSVertebrataNSVertebrataNS023OTOOTOPASCAL 12-0039421 INISTExogenous ghrelin attenuates endotoxin fever in ratsSORIANO (Renato N.); NICOLI (Lelis G.); CARNIO (Evelin C.); BRANCO (Luiz G. S.); VAUDRY (Hubert); TACHE (Yvette)Nursing School of Ribeirão Preto, University of São Paulo, Ribeirão Preto/São Paulo/Brésil (1 aut., 3 aut.); Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto/São Paulo/Brésil (2 aut., 4 aut.); Inserm U982, Laboratory of Neuronal and Neuroendocrine Differentiation and Communication, International Associated Laboratory Samuel de Champlain, European Institute for Peptide Research (IFRM 23), University of Rouen/76821 Mont-Saint-Aignan/France (1 aut.); David Geffen School of Medicine at UCLA, Digestive Diseases Research Center - Animal Core, VA Greater Los Angeles Healthcare System, 11301 Wilshire Boulevard, CURE Building 115, Room 117/Los Angeles, CA 90073/Etats-Unis (2 aut.)
Publication en série; Niveau analytique
Peptides : (New York, NY. 1980); ISSN 0196-9781; Coden PPTDD5; Etats-Unis; Da. 2011; Vol. 32; No. 11; Pp. 2372-2376; Bibl. 38 ref.AnglaisGhrelin is a gut-derived peptide that plays a role in energy homeostasis. Recent studies have implicated ghrelin in systemic inflammation, showing increased plasma ghrelin levels after endotoxin (lipopolysaccharide, LPS) administration. The aims of this study were (1) to test the hypothesis that ghrelin administration affects LPS-induced fever; and (2) to assess the putative effects of ghrelin on plasma corticosterone secretion and preoptic region prostaglandin (PG) E2 levels in euthermic and febrile rats. Rats were implanted with a temperature datalogger capsule in the peritoneal cavity to record body core temperature. One week later, they were challenged with LPS (50 μg/kg, intraperitoneal, i.p.) alone or combined with ghrelin (0.1 mg/kg, i.p.). In another group of rats, plasma corticosterone and preoptic region PGE2 levels were measured 2 h after injections. In euthermic animals, systemic administration of ghrelin failed to elicit any thermoregulatory effect, and caused no significant changes in basal plasma corticosterone and preoptic region PGE2 levels. LPS caused a typical febrile response, accompanied by increased plasma corticosterone and preoptic PGE2 levels. When LPS administration was combined with ghrelin fever was attenuated, corticosterone secretion further increased, and the elevated preoptic PGE2 levels were relatively reduced, but a correlation between these two variables (corticosterone and PGE2) failed to exist. The present data add ghrelin to the neurochemical milieu controlling the immune/thermoregulatory system acting as an antipyretic molecule. Moreover, our findings also support the notion that ghrelin attenuates fever by means of a direct effect of the peptide reducing PGE2 production in the preoptic region.002A28Ghréline; Endotoxine; Fièvre; Lipopolyoside; Température corporelle; Prostaglandin-endoperoxide synthase; Animal; Inflammation; RatToxine; Oxidoreductases; Enzyme; Rodentia; Mammalia; VertebrataGhrelin; Endotoxin; Fever; Lipopolysaccharide; Body temperature; Prostaglandin-endoperoxide synthase; Animal; Inflammation; RatToxin; Oxidoreductases; Enzyme; Rodentia; Mammalia; VertebrataGrelina; Endotoxina; Fiebre; Lipopoliósido; Temperatura corporal; Prostaglandin-endoperoxide synthase; Animal; Inflamación; RataINIST-19060.35400050567412029012-0039421 001B56 Writer's cramp: cortical excitability in tasks involving proximo-distal coordinationA. BoyadjianLaboratoire de Plasticite et Physio-Pathologie de la Motricité, CNRS UMR 6I96MarseilleFRA1 aut.2 aut.F. TycLaboratoire de Plasticite et Physio-Pathologie de la Motricité, CNRS UMR 6I96MarseilleFRA1 aut.2 aut.N. AllamLaboratório de Neurociências e Comportomento, Universidade de Brasilia (UnBBrasiliaBRA3 aut.4 aut.Unidade de Dlstúrbios do Movimento, Hospital de Base do Distrito FederalBrasíliaBRA3 aut.J. P. Brasil-NetoLaboratório de Neurociências e Comportomento, Universidade de Brasilia (UnBBrasiliaBRA3 aut.4 aut.12-00395732011PASCAL 12-0039573 INISTPascal:12-0039573000D381748-1708Acta physiologica : (Print)CoordinationDystoniaExcitabilityMammaliaMotor controlStriated muscleTranscranial magnetic stimulationWriter crampExcitabilitéCoordinationContrôle moteurMuscle striéMammaliaCrampe écrivainDystonieStimulation magnétique transcrânienne
Aim: The aim of this work was to analyse how writer's cramp patients coordinate each element of the proximal to distal upper arm muscle chain during voluntary movement. Methods: Using transcranial magnetic stimulation, we have assessed motor cortex excitability properties in patients by recording motor-evoked potentials and silent periods in both the extensor carpi radialis (ECR) and the first dorsal interosseus muscles (FDI), activated either in isolation, or in conjunction with voluntary medial deltoid (MD) co-activation during performance of precise tasks. Ten dystonic patients and ten healthy controls were tested. Results: In both test groups, the ECR muscle displayed a similar active motor threshold, but the excitability curves reached higher plateau values, when the proximal MD muscle was co-activated. In the dystonic group, the FDI muscle excitability curves reached higher plateau values when the MD was co-activated, whereas co-activation had no effect on the control group. In the control group, silent periods, in both the ECR and the FDI were longer when the MD was co-activated. This effect was not observed in the dystonic group. Conclusion: In the dystonic group, facilitation of the FDI was observed during a task involving proximo-distal coordination. No differences in silent periods were observed when the muscle was activated alone. Our results suggest that such abnormal facilitation is not only an impairment of the central inhibitory mechanisms reported for dystonic patients, but, in addition, represents true abnormality in cortical muscle activation strategies.
1748-17082032Writer's cramp: cortical excitability in tasks involving proximo-distal coordinationBOYADJIAN (A.)TYC (F.)ALLAM (N.)BRASIL-NETO (J. P.)Laboratoire de Plasticite et Physio-Pathologie de la Motricité, CNRS UMR 6I96MarseilleFRA1 aut.2 aut.Laboratório de Neurociências e Comportomento, Universidade de Brasilia (UnBBrasiliaBRA3 aut.4 aut.Unidade de Dlstúrbios do Movimento, Hospital de Base do Distrito FederalBrasíliaBRA3 aut.321-3302011ENGINIST907A3540005089763700500000© 2012 INIST-CNRS. All rights reserved.1 p.1/212-0039573PAActa physiologica : (Print)GBRAim: The aim of this work was to analyse how writer's cramp patients coordinate each element of the proximal to distal upper arm muscle chain during voluntary movement. Methods: Using transcranial magnetic stimulation, we have assessed motor cortex excitability properties in patients by recording motor-evoked potentials and silent periods in both the extensor carpi radialis (ECR) and the first dorsal interosseus muscles (FDI), activated either in isolation, or in conjunction with voluntary medial deltoid (MD) co-activation during performance of precise tasks. Ten dystonic patients and ten healthy controls were tested. Results: In both test groups, the ECR muscle displayed a similar active motor threshold, but the excitability curves reached higher plateau values, when the proximal MD muscle was co-activated. In the dystonic group, the FDI muscle excitability curves reached higher plateau values when the MD was co-activated, whereas co-activation had no effect on the control group. In the control group, silent periods, in both the ECR and the FDI were longer when the MD was co-activated. This effect was not observed in the dystonic group. Conclusion: In the dystonic group, facilitation of the FDI was observed during a task involving proximo-distal coordination. No differences in silent periods were observed when the muscle was activated alone. Our results suggest that such abnormal facilitation is not only an impairment of the central inhibitory mechanisms reported for dystonic patients, but, in addition, represents true abnormality in cortical muscle activation strategies.002A16Excitabilité01Excitability01Excitabilidad01Coordination02Coordination02Coordinación02Contrôle moteur03Motor control03Control motor03Muscle strié04Striated muscle04Músculo estriado04MammaliaNS05MammaliaNS05MammaliaNS05Crampe écrivain09Writer cramp09Calambre escribano09Dystonie12Dystonia12Distonía12Stimulation magnétique transcrânienneCD96Transcranial magnetic stimulationCD96VertebrataNSVertebrataNSVertebrataNSPathologie du muscle strié20Striated muscle disease20Músculo estriado patología20Syndrome extrapyramidal21Extrapyramidal syndrome21Extrapiramidal síndrome21Mouvement involontaire22Involuntary movement22Movimiento involuntario22Pathologie du système nerveux23Nervous system diseases23Sistema nervioso patología23Trouble neurologique24Neurological disorder24Trastorno neurológico24Pathologie de l'encéphale25Cerebral disorder25Encéfalo patología25Pathologie du système nerveux central26Central nervous system disease26Sistema nervosio central patología26023OTOOTOPASCAL 12-0039573 INISTWriter's cramp: cortical excitability in tasks involving proximo-distal coordinationBOYADJIAN (A.); TYC (F.); ALLAM (N.); BRASIL-NETO (J. P.)Laboratoire de Plasticite et Physio-Pathologie de la Motricité, CNRS UMR 6I96/Marseille/France (1 aut., 2 aut.); Laboratório de Neurociências e Comportomento, Universidade de Brasilia (UnB/Brasilia/Brésil (3 aut., 4 aut.); Unidade de Dlstúrbios do Movimento, Hospital de Base do Distrito Federal/Brasília/Brésil (3 aut.)
Publication en série; Niveau analytique
Acta physiologica : (Print); ISSN 1748-1708; Royaume-Uni; Da. 2011; Vol. 203; No. 2; Pp. 321-330; Bibl. 1 p.1/2AnglaisAim: The aim of this work was to analyse how writer's cramp patients coordinate each element of the proximal to distal upper arm muscle chain during voluntary movement. Methods: Using transcranial magnetic stimulation, we have assessed motor cortex excitability properties in patients by recording motor-evoked potentials and silent periods in both the extensor carpi radialis (ECR) and the first dorsal interosseus muscles (FDI), activated either in isolation, or in conjunction with voluntary medial deltoid (MD) co-activation during performance of precise tasks. Ten dystonic patients and ten healthy controls were tested. Results: In both test groups, the ECR muscle displayed a similar active motor threshold, but the excitability curves reached higher plateau values, when the proximal MD muscle was co-activated. In the dystonic group, the FDI muscle excitability curves reached higher plateau values when the MD was co-activated, whereas co-activation had no effect on the control group. In the control group, silent periods, in both the ECR and the FDI were longer when the MD was co-activated. This effect was not observed in the dystonic group. Conclusion: In the dystonic group, facilitation of the FDI was observed during a task involving proximo-distal coordination. No differences in silent periods were observed when the muscle was activated alone. Our results suggest that such abnormal facilitation is not only an impairment of the central inhibitory mechanisms reported for dystonic patients, but, in addition, represents true abnormality in cortical muscle activation strategies.002A16Excitabilité; Coordination; Contrôle moteur; Muscle strié; Mammalia; Crampe écrivain; Dystonie; Stimulation magnétique transcrânienneVertebrata; Pathologie du muscle strié; Syndrome extrapyramidal; Mouvement involontaire; Pathologie du système nerveux; Trouble neurologique; Pathologie de l'encéphale; Pathologie du système nerveux centralExcitability; Coordination; Motor control; Striated muscle; Mammalia; Writer cramp; Dystonia; Transcranial magnetic stimulationVertebrata; Striated muscle disease; Extrapyramidal syndrome; Involuntary movement; Nervous system diseases; Neurological disorder; Cerebral disorder; Central nervous system diseaseExcitabilidad; Coordinación; Control motor; Músculo estriado; Mammalia; Calambre escribano; DistoníaINIST-907A.35400050897637005012-0039573 001B57 EVOLUTIONARY AESTHETICS AND SEXUAL SELECTION IN THE EVOLUTION OF ROCK ART AESTHETICSMarco Antônio Correa VarellaLaboratory of Comparative Psychology and Ethology Department of Experimental Psychology Institute of Psychology Universidade de São PauloBRA1 aut.2 aut.3 aut.Altay Alves Lino De SouzaLaboratory of Comparative Psychology and Ethology Department of Experimental Psychology Institute of Psychology Universidade de São PauloBRA1 aut.2 aut.3 aut.Jose Henrique Benedetti Piccoli FerreiraLaboratory of Comparative Psychology and Ethology Department of Experimental Psychology Institute of Psychology Universidade de São PauloBRA1 aut.2 aut.3 aut.Ben WatsonPatriciaa. HelvenstonLivio DobrezCollege of Arts and Social Sciences Australian National UniversityCanberra, ACT 0200AUS6 aut.Ellen DissanayakeSchool of Music University of WashingtonSeattle, WA 98195-3450USA7 aut.Duncan CaldwellMarine and Paleobiological Research Institute 18, rue Rambuteau (B35)75003 ParisFRA8 aut.Ahmed AchratiSchool of Continuing Education Georgetown UniversityWashington, D.CUSA9 aut.Robert G. BednarikMarco A. C. VarellaJosé HenriqueB. P. FerreiraAltaya L. De Souza12-00403402011FRANCIS 12-0040340 INISTFrancis:12-0040340000E140813-0426Rock art res.Rock art researchEstheticsIconographyRock artArt rupestreEsthétiqueIconographieMotifCognitionSélection sexuelle
This theoretical proposal applies evolutionary aesthetic, animal signalling and sexual selection to understand our artistic cognition, especially rock art aesthetics. Iconographic motifs, universally found in rock art, indicate which set of pre-artistic aesthetic psychological bias has been co-opted to catch the viewer's attention. The co-evolutionary process of sexual selection could have shaped the design features of both rock art images and their aesthetic cognition by conferring mutual benefits on both producers, via manipulation, and receivers, via information extraction. We show some strategic techniques identified in rock art and art that indicate the occurrence of this co-evolution between producers and receivers.
0813-0426Rock art res.282EVOLUTIONARY AESTHETICS AND SEXUAL SELECTION IN THE EVOLUTION OF ROCK ART AESTHETICSCORREA VARELLA (Marco Antônio)LINO DE SOUZA (Altay Alves)BENEDETTI PICCOLI FERREIRA (Jose Henrique)WATSON (Ben)comment.HELVENSTON (PatriciaA.)comment.DOBREZ (Livio)comment.DISSANAYAKE (Ellen)comment.CALDWELL (Duncan)comment.ACHRATI (Ahmed)comment.BEDNARIK (Robert G.)comment.VARELLA (Marco A. C.)rép.HENRIQUE (José)rép.FERREIRA (B. P.)rép.DE SOUZA (AltaYA L.)rép.Laboratory of Comparative Psychology and Ethology Department of Experimental Psychology Institute of Psychology Universidade de São PauloBRA1 aut.2 aut.3 aut.College of Arts and Social Sciences Australian National UniversityCanberra, ACT 0200AUS6 aut.School of Music University of WashingtonSeattle, WA 98195-3450USA7 aut.Marine and Paleobiological Research Institute 18, rue Rambuteau (B35)75003 ParisFRA8 aut.School of Continuing Education Georgetown UniversityWashington, D.CUSA9 aut.153-1862011ENGINIST280353540001904591400200000© 2012 INIST-CNRS. All rights reserved.4 p.1/412-0040340PARCTRARock art researchAUSEsthétique évolutive et sélection sexuelle dans l'évolution de l'esthétisme en art rupestreThis theoretical proposal applies evolutionary aesthetic, animal signalling and sexual selection to understand our artistic cognition, especially rock art aesthetics. Iconographic motifs, universally found in rock art, indicate which set of pre-artistic aesthetic psychological bias has been co-opted to catch the viewer's attention. The co-evolutionary process of sexual selection could have shaped the design features of both rock art images and their aesthetic cognition by conferring mutual benefits on both producers, via manipulation, and receivers, via information extraction. We show some strategic techniques identified in rock art and art that indicate the occurrence of this co-evolution between producers and receivers.52543II525Art rupestre19Rock art19Esthétique20Esthetics20Iconographie21Iconography21MotifINC31CognitionINC32Sélection sexuelleINC33023FRANCIS 12-0040340 INIST(Esthétique évolutive et sélection sexuelle dans l'évolution de l'esthétisme en art rupestre)EVOLUTIONARY AESTHETICS AND SEXUAL SELECTION IN THE EVOLUTION OF ROCK ART AESTHETICSCORREA VARELLA (Marco Antônio); LINO DE SOUZA (Altay Alves); BENEDETTI PICCOLI FERREIRA (Jose Henrique); WATSON (Ben); HELVENSTON (PatriciaA.); DOBREZ (Livio); DISSANAYAKE (Ellen); CALDWELL (Duncan); ACHRATI (Ahmed); BEDNARIK (Robert G.); VARELLA (Marco A. C.); HENRIQUE (José); FERREIRA (B. P.); DE SOUZA (AltaYA L.)Laboratory of Comparative Psychology and Ethology Department of Experimental Psychology Institute of Psychology Universidade de São Paulo/Brésil (1 aut., 2 aut., 3 aut.); College of Arts and Social Sciences Australian National University/Canberra, ACT 0200/Australie (6 aut.); School of Music University of Washington/Seattle, WA 98195-3450/Etats-Unis (7 aut.); Marine and Paleobiological Research Institute 18, rue Rambuteau (B35)/75003 Paris/France (8 aut.); School of Continuing Education Georgetown University/Washington, D.C/Etats-Unis (9 aut.)
Publication en série; Article; Commentaire; Réponse; Niveau analytique
Rock art research; ISSN 0813-0426; Australie; Da. 2011; Vol. 28; No. 2; Pp. 153-186; Bibl. 4 p.1/4AnglaisThis theoretical proposal applies evolutionary aesthetic, animal signalling and sexual selection to understand our artistic cognition, especially rock art aesthetics. Iconographic motifs, universally found in rock art, indicate which set of pre-artistic aesthetic psychological bias has been co-opted to catch the viewer's attention. The co-evolutionary process of sexual selection could have shaped the design features of both rock art images and their aesthetic cognition by conferring mutual benefits on both producers, via manipulation, and receivers, via information extraction. We show some strategic techniques identified in rock art and art that indicate the occurrence of this co-evolution between producers and receivers.52543; 525Art rupestre; Esthétique; Iconographie; Motif; Cognition; Sélection sexuelleRock art; Esthetics; IconographyINIST-28035.35400019045914002012-0040340 001B58 Switched state-feedback control for continuous time-varying polytopic systemsGrace S. DeaectoDSCE/School of Electrical and Computer Engineering, UNICAMP13083 - 852, Campinas, SPBRA1 aut.2 aut.Jose C. GeromelDSCE/School of Electrical and Computer Engineering, UNICAMP13083 - 852, Campinas, SPBRA1 aut.2 aut.Jamal DaafouzCRAN/CNRS, Nancy University, Institut Universitaire de France, 2 avenue de la forêt de Haye54516 Vandoeuvre-lès-NancyFRA3 aut.12-00406632011PASCAL 12-0040663 INISTPascal:12-0040663000D370020-7179Int. J. ControlInternational Journal of ControlAsymptotic stabilityClosed feedbackContinuous controlContinuous timeControl synthesisCost controlFeedback regulationGain schedulingHH2 controlHybrid systemLinear matrix inequalityLyapunov functionMultimodel controlPolytopeState feedbackTime varying systemUncertain systemCommande retour étatRétroactionCommande boucle ferméeContrôle continuSystème paramètre variableSynthèse commandeCommande H2Stabilité asymptotiqueSystème incertainContrôle coûtSéquencement gainSystème hybrideTemps continuPolytopeOptimisation HFonction LyapunovInégalité matricielle linéaireCommande multimodèle
This article deals with switched state-feedback H2 control design of continuous time-varying polytopic systems. More specifically, the main goal is to determine, simultaneously, a set of state-feedback gains and a switching rule to orchestrate them, rendering the closed-loop system globally asymptotically stable for all time-varying uncertain parameter under consideration and assuring a guaranteed H2 cost. A contribution of the present switched control technique compared to the gain scheduling, widely used in the literature, is that the online measurement of the uncertain parameter is not required and no assumption on its time derivative is imposed. The conditions are based on modified Lyapunov-Metzler inequalities and can be solved by line search coupled with LMIs. An academic example illustrates the theoretical results and compares the present technique with other techniques from literature.
0020-7179IJCOAZInt. J. Control847-9Switched state-feedback control for continuous time-varying polytopic systemsDEAECTO (Grace S.)GEROMEL (Jose C.)DAAFOUZ (Jamal)DSCE/School of Electrical and Computer Engineering, UNICAMP13083 - 852, Campinas, SPBRA1 aut.2 aut.CRAN/CNRS, Nancy University, Institut Universitaire de France, 2 avenue de la forêt de Haye54516 Vandoeuvre-lès-NancyFRA3 aut.1500-15082011ENGINIST7803B3540005055054102500000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0040663PAInternational Journal of ControlGBRThis article deals with switched state-feedback H2 control design of continuous time-varying polytopic systems. More specifically, the main goal is to determine, simultaneously, a set of state-feedback gains and a switching rule to orchestrate them, rendering the closed-loop system globally asymptotically stable for all time-varying uncertain parameter under consideration and assuring a guaranteed H2 cost. A contribution of the present switched control technique compared to the gain scheduling, widely used in the literature, is that the online measurement of the uncertain parameter is not required and no assumption on its time derivative is imposed. The conditions are based on modified Lyapunov-Metzler inequalities and can be solved by line search coupled with LMIs. An academic example illustrates the theoretical results and compares the present technique with other techniques from literature.001D02D07001D02D06001D02D02Commande retour état06State feedback06Bucle realimentación estado06Rétroaction07Feedback regulation07Retroacción07Commande boucle fermée08Closed feedback08Bucle realimentación cerrada08Contrôle continu09Continuous control09Control continuo09Système paramètre variable10Time varying system10Sistema parámetro variable10Synthèse commande11Control synthesis11Síntesis control11Commande H212H2 control12Control H212Stabilité asymptotique13Asymptotic stability13Estabilidad asintótica13Système incertain14Uncertain system14Sistema incierto14Contrôle coût15Cost control15Control costos15Séquencement gain16Gain scheduling16Planificación ganancia16Système hybride17Hybrid system17Sistema híbrido17Temps continu18Continuous time18Tiempo continuo18Polytope28Polytope28Politope28Optimisation H229H2 optimization29Optimización H229Fonction Lyapunov30Lyapunov function30Función Lyapunov30Inégalité matricielle linéaire31Linear matrix inequality31Desigualdad matricial lineal31Commande multimodèle41Multimodel control41Control multimodelo41023OTOOTOPASCAL 12-0040663 INISTSwitched state-feedback control for continuous time-varying polytopic systemsDEAECTO (Grace S.); GEROMEL (Jose C.); DAAFOUZ (Jamal)DSCE/School of Electrical and Computer Engineering, UNICAMP/13083 - 852, Campinas, SP/Brésil (1 aut., 2 aut.); CRAN/CNRS, Nancy University, Institut Universitaire de France, 2 avenue de la forêt de Haye/54516 Vandoeuvre-lès-Nancy/France (3 aut.)
Publication en série; Niveau analytique
International Journal of Control; ISSN 0020-7179; Coden IJCOAZ; Royaume-Uni; Da. 2011; Vol. 84; No. 7-9; Pp. 1500-1508; Bibl. 3/4 p.AnglaisThis article deals with switched state-feedback H2 control design of continuous time-varying polytopic systems. More specifically, the main goal is to determine, simultaneously, a set of state-feedback gains and a switching rule to orchestrate them, rendering the closed-loop system globally asymptotically stable for all time-varying uncertain parameter under consideration and assuring a guaranteed H2 cost. A contribution of the present switched control technique compared to the gain scheduling, widely used in the literature, is that the online measurement of the uncertain parameter is not required and no assumption on its time derivative is imposed. The conditions are based on modified Lyapunov-Metzler inequalities and can be solved by line search coupled with LMIs. An academic example illustrates the theoretical results and compares the present technique with other techniques from literature.001D02D07; 001D02D06; 001D02D02Commande retour état; Rétroaction; Commande boucle fermée; Contrôle continu; Système paramètre variable; Synthèse commande; Commande H2; Stabilité asymptotique; Système incertain; Contrôle coût; Séquencement gain; Système hybride; Temps continu; Polytope; Optimisation H2; Fonction Lyapunov; Inégalité matricielle linéaire; Commande multimodèleState feedback; Feedback regulation; Closed feedback; Continuous control; Time varying system; Control synthesis; H2 control; Asymptotic stability; Uncertain system; Cost control; Gain scheduling; Hybrid system; Continuous time; Polytope; H2 optimization; Lyapunov function; Linear matrix inequality; Multimodel controlBucle realimentación estado; Retroacción; Bucle realimentación cerrada; Control continuo; Sistema parámetro variable; Síntesis control; Control H2; Estabilidad asintótica; Sistema incierto; Control costos; Planificación ganancia; Sistema híbrido; Tiempo continuo; Politope; Optimización H2; Función Lyapunov; Desigualdad matricial lineal; Control multimodeloINIST-7803B.35400050550541025012-0040663 001B59 Recurrent Dominant Mutations Affecting Two Adjacent Residues in the Motor Domain of the Monomeric Kinesin KIF22 Result in Skeletal Dysplasia and Joint LaxityEric D. BoydenChildren's Hospital Boston, Howard Hughes Medical Institute, Harvard Medical SchoolBoston, MA 02115USA1 aut.3 aut.29 aut.A. Belinda Campos-XavierDivision of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.Sebastian KalamajskiChildren's Hospital Boston, Howard Hughes Medical Institute, Harvard Medical SchoolBoston, MA 02115USA1 aut.3 aut.29 aut.Trevor L. CameronMurdoch Childrens Research InstituteParkville, Victoria 3052AUS4 aut.28 aut.Philippe SuarezDivision of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.Goranka TanackovichDepartment of Medical Genetics, University of Lausanne1011 LausanneCHE6 aut.Generoso AndriaDepartment of Pediatrics, Federico II University80131 NaplesITA7 aut.23 aut.Diana BallhausenDivision of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.Michael D. BriggsWellcome Trust Centre for Cell Matrix Research, Faculty of Life Sciences, University of ManchesterManchester M13 9PTGBR9 aut.10 aut.Claire HartleyWellcome Trust Centre for Cell Matrix Research, Faculty of Life Sciences, University of ManchesterManchester M13 9PTGBR9 aut.10 aut.Daniel H. CohnDepartments of Molecular, Cell and Developmental Biology and Orthopaedic Surgery, University of California, Los Angeles (UCLA)Los Angeles, CA 90048USA11 aut.H. Rosemarie DavidsonFerguson Smith Centre for Clinical Genetics, Yorkhill HospitalsGlasgow G3 8SJGBR12 aut.Christine HallRadiology Department, Institute of Child Health, Great Ormond Street HospitalLondon WC1N 3JHGBR13 aut.Shiro IkegawaLaboratory for Bone and Joint Diseases, Center for Genomic MedicineRiken, Tokyo 108-8639JPN14 aut.Pierre-Simon JoukClinical Genetics, Department of Genetics and Procreation, Centre Hospitalier Universitaire38043 GrenobleFRA15 aut.Rainer KönigInstitute of Human Genetics, Johann Wolfgang Goethe University Hospital60590 Frankfurt/MainDEU16 aut.Andre MegarbaneUnité de Genetique médicale et Laboratoire associe Institut National de la Sante et de la Recherche Medicale, Universite Saint-Joseph, 11-5076 Riad El SolhBeyrouthLBN17 aut.Gen NishimuraDepartment of Radiology and Medical Imaging, Tokyo Metropolitan Children's Medical CenterFuchu, Tokyo 183-8561JPN18 aut.Ralph S. LachmanMedical Genetics Institute, Cedars-Sinai Medical CenterLos Angeles, CA 90048USA19 aut.21 aut.Geert MortierDepartment of Medical Genetics, University Hospital of Antwerp, University of Antwerp2650 EdegemBEL20 aut.David L. RimoinMedical Genetics Institute, Cedars-Sinai Medical CenterLos Angeles, CA 90048USA19 aut.21 aut.Departments of Human Genetics, Pediatrics and Medicine, David Geffen School of Medicine at UCLALos Angeles, CA 90095-7088USA21 aut.R. Curtis RogersGreenwood Genetic CenterGreenville, SC 29605USA22 aut.Massimiliano RossiDepartment of Pediatrics, Federico II University80131 NaplesITA7 aut.23 aut.Hirotake SawadaDepartment of Pediatrics, Miyazaki Medical College, University of Miyazaki, 5200 KiharaMiyazaki 889-1692JPN24 aut.Richard ScottClinical Genetics, Great Ormond Street HospitalLondon WC1N 3JHGBR25 aut.Sheila UngerDepartment of Medical Genetics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE26 aut.Eugenia Ribeiro ValadaresLaboratory and Clinic for Inborn Errors Of Metabolism, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo HorizonteMinas Gerais 30130100BRA27 aut.John F. BatemanMurdoch Childrens Research InstituteParkville, Victoria 3052AUS4 aut.28 aut.Department of Biochemistry and Molecular Biology, University of MelbourneParkville, Victoria 3052AUS28 aut.Matthew L. WarmanChildren's Hospital Boston, Howard Hughes Medical Institute, Harvard Medical SchoolBoston, MA 02115USA1 aut.3 aut.29 aut.Andrea Superti-FurgaDivision of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.Luisa BonafeDivision of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.12-00430682011PASCAL 12-0043068 INISTPascal:12-0043068000D360002-9297Am. j. hum. genet.American journal of human geneticsBoneDominant characterDysplasiaGeneticsHumanJointKinesinLaxityMutationRecurrentRelapseSkeletonDysplasieRécidiveRécidivantCaractère dominantMutationKinésineOsSqueletteArticulationHyperlaxitéGénétiqueHomme
Spondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (lepto-SEMDJL, aka SEMDJL, Hall type), is an autosomal dominant skeletal disorder that, in spite of being relatively common among skeletal dysplasias, has eluded molecular elucidation so far. We used whole-exome sequencing of five unrelated individuals with lepto-SEMDJL to identify mutations in KIF22 as the cause of this skeletal condition. Missense mutations affecting one of two adjacent amino acids in the motor domain of KIF22 were present in 20 familial cases from eight families and in 12 other sporadic cases. The skeletal and connective tissue phenotype produced by these specific mutations point to functions of KIF22 beyond those previously ascribed functions involving chromosome segregation. Although we have found Kif22 to be strongly upregulated at the growth plate, the precise pathogenetic mechanisms remain to be elucidated.
0002-9297AJHGAGAm. j. hum. genet.896Recurrent Dominant Mutations Affecting Two Adjacent Residues in the Motor Domain of the Monomeric Kinesin KIF22 Result in Skeletal Dysplasia and Joint LaxityBOYDEN (Eric D.)CAMPOS-XAVIER (A. Belinda)KALAMAJSKI (Sebastian)CAMERON (Trevor L.)SUAREZ (Philippe)TANACKOVICH (Goranka)ANDRIA (Generoso)BALLHAUSEN (Diana)BRIGGS (Michael D.)HARTLEY (Claire)COHN (Daniel H.)ROSEMARIE DAVIDSON (H.)HALL (Christine)IKEGAWA (Shiro)JOUK (Pierre-Simon)KÖNIG (Rainer)MEGARBANE (Andre)NISHIMURA (Gen)LACHMAN (Ralph S.)MORTIER (Geert)RIMOIN (David L.)CURTIS ROGERS (R.)ROSSI (Massimiliano)SAWADA (Hirotake)SCOTT (Richard)UNGER (Sheila)RIBEIRO VALADARES (Eugenia)BATEMAN (John F.)WARMAN (Matthew L.)SUPERTI-FURGA (Andrea)BONAFE (Luisa)Children's Hospital Boston, Howard Hughes Medical Institute, Harvard Medical SchoolBoston, MA 02115USA1 aut.3 aut.29 aut.Division of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE2 aut.5 aut.8 aut.30 aut.31 aut.Murdoch Childrens Research InstituteParkville, Victoria 3052AUS4 aut.28 aut.Department of Medical Genetics, University of Lausanne1011 LausanneCHE6 aut.Department of Pediatrics, Federico II University80131 NaplesITA7 aut.23 aut.Wellcome Trust Centre for Cell Matrix Research, Faculty of Life Sciences, University of ManchesterManchester M13 9PTGBR9 aut.10 aut.Departments of Molecular, Cell and Developmental Biology and Orthopaedic Surgery, University of California, Los Angeles (UCLA)Los Angeles, CA 90048USA11 aut.Ferguson Smith Centre for Clinical Genetics, Yorkhill HospitalsGlasgow G3 8SJGBR12 aut.Radiology Department, Institute of Child Health, Great Ormond Street HospitalLondon WC1N 3JHGBR13 aut.Laboratory for Bone and Joint Diseases, Center for Genomic MedicineRiken, Tokyo 108-8639JPN14 aut.Clinical Genetics, Department of Genetics and Procreation, Centre Hospitalier Universitaire38043 GrenobleFRA15 aut.Institute of Human Genetics, Johann Wolfgang Goethe University Hospital60590 Frankfurt/MainDEU16 aut.Unité de Genetique médicale et Laboratoire associe Institut National de la Sante et de la Recherche Medicale, Universite Saint-Joseph, 11-5076 Riad El SolhBeyrouthLBN17 aut.Department of Radiology and Medical Imaging, Tokyo Metropolitan Children's Medical CenterFuchu, Tokyo 183-8561JPN18 aut.Medical Genetics Institute, Cedars-Sinai Medical CenterLos Angeles, CA 90048USA19 aut.21 aut.Department of Medical Genetics, University Hospital of Antwerp, University of Antwerp2650 EdegemBEL20 aut.Departments of Human Genetics, Pediatrics and Medicine, David Geffen School of Medicine at UCLALos Angeles, CA 90095-7088USA21 aut.Greenwood Genetic CenterGreenville, SC 29605USA22 aut.Department of Pediatrics, Miyazaki Medical College, University of Miyazaki, 5200 KiharaMiyazaki 889-1692JPN24 aut.Clinical Genetics, Great Ormond Street HospitalLondon WC1N 3JHGBR25 aut.Department of Medical Genetics, Centre Hospitalier Universitaire Vaudois1011 LausanneCHE26 aut.Laboratory and Clinic for Inborn Errors Of Metabolism, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo HorizonteMinas Gerais 30130100BRA27 aut.Department of Biochemistry and Molecular Biology, University of MelbourneParkville, Victoria 3052AUS28 aut.767-7722011ENGINIST26103540005059757500800000© 2012 INIST-CNRS. All rights reserved.34 ref.12-0043068PCAAmerican journal of human geneticsUSASpondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (lepto-SEMDJL, aka SEMDJL, Hall type), is an autosomal dominant skeletal disorder that, in spite of being relatively common among skeletal dysplasias, has eluded molecular elucidation so far. We used whole-exome sequencing of five unrelated individuals with lepto-SEMDJL to identify mutations in KIF22 as the cause of this skeletal condition. Missense mutations affecting one of two adjacent amino acids in the motor domain of KIF22 were present in 20 familial cases from eight families and in 12 other sporadic cases. The skeletal and connective tissue phenotype produced by these specific mutations point to functions of KIF22 beyond those previously ascribed functions involving chromosome segregation. Although we have found Kif22 to be strongly upregulated at the growth plate, the precise pathogenetic mechanisms remain to be elucidated.002A04002A07002B23ADysplasie01Dysplasia01Displasia01Récidive09Relapse09Recaida09Récidivant10Recurrent10Recidivante10Caractère dominant11Dominant character11Carácter dominante11Mutation12Mutation12Mutación12Kinésine13Kinesin13Kinesina13Os14Bone14Hueso14Squelette15Skeleton15Esqueleto15Articulation16Joint16Articulación16Hyperlaxité17Laxity17Hiperlaxitud17Génétique18Genetics18Genética18Homme19Human19Hombre19023OTOOTOPASCAL 12-0043068 INISTRecurrent Dominant Mutations Affecting Two Adjacent Residues in the Motor Domain of the Monomeric Kinesin KIF22 Result in Skeletal Dysplasia and Joint LaxityBOYDEN (Eric D.); CAMPOS-XAVIER (A. Belinda); KALAMAJSKI (Sebastian); CAMERON (Trevor L.); SUAREZ (Philippe); TANACKOVICH (Goranka); ANDRIA (Generoso); BALLHAUSEN (Diana); BRIGGS (Michael D.); HARTLEY (Claire); COHN (Daniel H.); ROSEMARIE DAVIDSON (H.); HALL (Christine); IKEGAWA (Shiro); JOUK (Pierre-Simon); KÖNIG (Rainer); MEGARBANE (Andre); NISHIMURA (Gen); LACHMAN (Ralph S.); MORTIER (Geert); RIMOIN (David L.); CURTIS ROGERS (R.); ROSSI (Massimiliano); SAWADA (Hirotake); SCOTT (Richard); UNGER (Sheila); RIBEIRO VALADARES (Eugenia); BATEMAN (John F.); WARMAN (Matthew L.); SUPERTI-FURGA (Andrea); BONAFE (Luisa)Children's Hospital Boston, Howard Hughes Medical Institute, Harvard Medical School/Boston, MA 02115/Etats-Unis (1 aut., 3 aut., 29 aut.); Division of Molecular Pediatrics, Centre Hospitalier Universitaire Vaudois/1011 Lausanne/Suisse (2 aut., 5 aut., 8 aut., 30 aut., 31 aut.); Murdoch Childrens Research Institute/Parkville, Victoria 3052/Australie (4 aut., 28 aut.); Department of Medical Genetics, University of Lausanne/1011 Lausanne/Suisse (6 aut.); Department of Pediatrics, Federico II University/80131 Naples/Italie (7 aut., 23 aut.); Wellcome Trust Centre for Cell Matrix Research, Faculty of Life Sciences, University of Manchester/Manchester M13 9PT/Royaume-Uni (9 aut., 10 aut.); Departments of Molecular, Cell and Developmental Biology and Orthopaedic Surgery, University of California, Los Angeles (UCLA)/Los Angeles, CA 90048/Etats-Unis (11 aut.); Ferguson Smith Centre for Clinical Genetics, Yorkhill Hospitals/Glasgow G3 8SJ/Royaume-Uni (12 aut.); Radiology Department, Institute of Child Health, Great Ormond Street Hospital/London WC1N 3JH/Royaume-Uni (13 aut.); Laboratory for Bone and Joint Diseases, Center for Genomic Medicine/Riken, Tokyo 108-8639/Japon (14 aut.); Clinical Genetics, Department of Genetics and Procreation, Centre Hospitalier Universitaire/38043 Grenoble/France (15 aut.); Institute of Human Genetics, Johann Wolfgang Goethe University Hospital/60590 Frankfurt/Main/Allemagne (16 aut.); Unité de Genetique médicale et Laboratoire associe Institut National de la Sante et de la Recherche Medicale, Universite Saint-Joseph, 11-5076 Riad El Solh/Beyrouth/Liban (17 aut.); Department of Radiology and Medical Imaging, Tokyo Metropolitan Children's Medical Center/Fuchu, Tokyo 183-8561/Japon (18 aut.); Medical Genetics Institute, Cedars-Sinai Medical Center/Los Angeles, CA 90048/Etats-Unis (19 aut., 21 aut.); Department of Medical Genetics, University Hospital of Antwerp, University of Antwerp/2650 Edegem/Belgique (20 aut.); Departments of Human Genetics, Pediatrics and Medicine, David Geffen School of Medicine at UCLA/Los Angeles, CA 90095-7088/Etats-Unis (21 aut.); Greenwood Genetic Center/Greenville, SC 29605/Etats-Unis (22 aut.); Department of Pediatrics, Miyazaki Medical College, University of Miyazaki, 5200 Kihara/Miyazaki 889-1692/Japon (24 aut.); Clinical Genetics, Great Ormond Street Hospital/London WC1N 3JH/Royaume-Uni (25 aut.); Department of Medical Genetics, Centre Hospitalier Universitaire Vaudois/1011 Lausanne/Suisse (26 aut.); Laboratory and Clinic for Inborn Errors Of Metabolism, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte/Minas Gerais 30130100/Brésil (27 aut.); Department of Biochemistry and Molecular Biology, University of Melbourne/Parkville, Victoria 3052/Australie (28 aut.)
Publication en série; Compte-rendu; Niveau analytique
American journal of human genetics; ISSN 0002-9297; Coden AJHGAG; Etats-Unis; Da. 2011; Vol. 89; No. 6; Pp. 767-772; Bibl. 34 ref.AnglaisSpondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (lepto-SEMDJL, aka SEMDJL, Hall type), is an autosomal dominant skeletal disorder that, in spite of being relatively common among skeletal dysplasias, has eluded molecular elucidation so far. We used whole-exome sequencing of five unrelated individuals with lepto-SEMDJL to identify mutations in KIF22 as the cause of this skeletal condition. Missense mutations affecting one of two adjacent amino acids in the motor domain of KIF22 were present in 20 familial cases from eight families and in 12 other sporadic cases. The skeletal and connective tissue phenotype produced by these specific mutations point to functions of KIF22 beyond those previously ascribed functions involving chromosome segregation. Although we have found Kif22 to be strongly upregulated at the growth plate, the precise pathogenetic mechanisms remain to be elucidated.002A04; 002A07; 002B23ADysplasie; Récidive; Récidivant; Caractère dominant; Mutation; Kinésine; Os; Squelette; Articulation; Hyperlaxité; Génétique; HommeDysplasia; Relapse; Recurrent; Dominant character; Mutation; Kinesin; Bone; Skeleton; Joint; Laxity; Genetics; HumanDisplasia; Recaida; Recidivante; Carácter dominante; Mutación; Kinesina; Hueso; Esqueleto; Articulación; Hiperlaxitud; Genética; HombreINIST-2610.35400050597575008012-0043068 001B60 Raman and Infrared Phonon Features in a Designed Cubic Polymorph of CaTa<sub>2</sub>O<sub>6</sub>N. G. TeixeiraDepartamento de Fisica, ICEx, Universidade Federal de Minas Gerais, C.P. 702, 30123-970, Belo HorizonteMinas GeraisBRA1 aut.2 aut.R. L. MoreiraDepartamento de Fisica, ICEx, Universidade Federal de Minas Gerais, C.P. 702, 30123-970, Belo HorizonteMinas GeraisBRA1 aut.2 aut.R. P. S. M. LoboLaboratoire de Physique et d'Étude des Materiaux, ESPCI, CNRS, UPMC, 10 rue Vauquelin75231 ParisFRA3 aut.M. R. B. AndreetaInstituto de Fisica de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970São Carlos, São PauloBRA4 aut.5 aut.A. C. HernandesInstituto de Fisica de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970São Carlos, São PauloBRA4 aut.5 aut.A. DiasDepartamento de Quimica, ICEB, Universidade Federal de Ouro Preto, 35400-000, Ouro PretoMinas GeraisBRA6 aut.12-00430702011PASCAL 12-0043070 INISTPascal:12-0043070000D351528-7483Cryst. growth des.Crystal growth & designCalciumCalcium TantalatesCrystal defectsCrystal growthCrystal structureCubic latticesDampingFibersGrowth mechanismInfrared spectroscopyIrreducible representationsLaser heated pedestal growth methodMonocrystalsOperating conditionsOptical phononsOptical propertiesPolymorphismQuench defectRaman scatteringRaman spectroscopySpace groupsXRDSpectrométrie RamanPhonon optiqueRéseau cubiquePolymorphismeStructure cristallineCalciumCroissance cristallineCondition opératoireMéthode LHPGFibreDiffraction RXDiffusion RamanSpectrométrie IRGroupe espaceCalcium TantalateMonocristalMécanisme croissancePropriété optiqueReprésentation irréductibleAmortissementDéfaut trempeDéfaut cristallinCaTa2O66166H6150K8110A
At room temperature, calcium tantalite (CaTa2O6) is known to exhibit I three stable polymorphs, depending on the crystal growth conditions. In this work, the laser-heated pedestal growth method was used to obtain CaTa2O6 single crystal fibers in its quenched (ordered) cubic polymorph, attractive for optical applications. X-ray diffraction, Raman scattering and infrared spectroscopy showed that the fibers grew into the centrosymmetrical Pm3 space group. The growth axis was determined as [00 1 ]. The cylindrical fibers (20 mm long and 400 μm wide) showed good optical quality, without cracks or striations, but with small facets, parallel to crystal edges or to in-plane edge bicetrices. A comprehensive set of the optical phonons for this cubic structure was obtained, consisting of 13 (of 16 foreseen) triply degenerate polar phonons, and all the 21 predicted Raman modes. By using special scattering geometries, the Raman bands were attributed to their corresponding irreducible representations. In general, the phonons showed rather large damping constants, which do not compromise the designed optical applications in compact lasers but increase the losses in the microwave range, even though the dielectric response is quite adequate for microwave applications. Quenched defects and crystal polymorphism can be at the origin of the large phonon damping.
1528-7483Cryst. growth des.1112Raman and Infrared Phonon Features in a Designed Cubic Polymorph of CaTa2O6TEIXEIRA (N. G.)MOREIRA (R. L.)LOBO (R. P. S. M.)ANDREETA (M. R. B.)HERNANDES (A. C.)DIAS (A.)Departamento de Fisica, ICEx, Universidade Federal de Minas Gerais, C.P. 702, 30123-970, Belo HorizonteMinas GeraisBRA1 aut.2 aut.Laboratoire de Physique et d'Étude des Materiaux, ESPCI, CNRS, UPMC, 10 rue Vauquelin75231 ParisFRA3 aut.Instituto de Fisica de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970São Carlos, São PauloBRA4 aut.5 aut.Departamento de Quimica, ICEB, Universidade Federal de Ouro Preto, 35400-000, Ouro PretoMinas GeraisBRA6 aut.5567-55732011ENGINIST272613540005059464805200000© 2012 INIST-CNRS. All rights reserved.27 ref.12-0043070PACrystal growth & designUSAAt room temperature, calcium tantalite (CaTa2O6) is known to exhibit I three stable polymorphs, depending on the crystal growth conditions. In this work, the laser-heated pedestal growth method was used to obtain CaTa2O6 single crystal fibers in its quenched (ordered) cubic polymorph, attractive for optical applications. X-ray diffraction, Raman scattering and infrared spectroscopy showed that the fibers grew into the centrosymmetrical Pm3 space group. The growth axis was determined as [00 1 ]. The cylindrical fibers (20 mm long and 400 μm wide) showed good optical quality, without cracks or striations, but with small facets, parallel to crystal edges or to in-plane edge bicetrices. A comprehensive set of the optical phonons for this cubic structure was obtained, consisting of 13 (of 16 foreseen) triply degenerate polar phonons, and all the 21 predicted Raman modes. By using special scattering geometries, the Raman bands were attributed to their corresponding irreducible representations. In general, the phonons showed rather large damping constants, which do not compromise the designed optical applications in compact lasers but increase the losses in the microwave range, even though the dielectric response is quite adequate for microwave applications. Quenched defects and crystal polymorphism can be at the origin of the large phonon damping.001B60A50K001B60A66H001B80A10ASpectrométrie Raman01Raman spectroscopy01Phonon optique02Optical phonons02Réseau cubique03Cubic lattices03Polymorphisme04Polymorphism04Structure cristalline05Crystal structure05CalciumNC06CalciumNC06Croissance cristalline07Crystal growth07Condition opératoire08Operating conditions08Condición operatoria08Méthode LHPG09Laser heated pedestal growth method09Método LHPG09Fibre10Fibers10Diffraction RX11XRD11Diffusion Raman12Raman scattering12Difusión Ramán12Spectrométrie IR13Infrared spectroscopy13Groupe espace14Space groups14Calcium TantalateNCNA15Calcium TantalatesNCNA15Monocristal16Monocrystals16Mécanisme croissance29Growth mechanism29Mecanismo crecimiento29Propriété optique30Optical properties30Représentation irréductible31Irreducible representations31Amortissement32Damping32Défaut trempe33Quench defect33Defecto temple33Défaut cristallin34Crystal defects34CaTa2O6INC466166HINC656150KINC718110AINC74023PASCAL 12-0043070 INISTRaman and Infrared Phonon Features in a Designed Cubic Polymorph of CaTa2O6TEIXEIRA (N. G.); MOREIRA (R. L.); LOBO (R. P. S. M.); ANDREETA (M. R. B.); HERNANDES (A. C.); DIAS (A.)Departamento de Fisica, ICEx, Universidade Federal de Minas Gerais, C.P. 702, 30123-970, Belo Horizonte/Minas Gerais/Brésil (1 aut., 2 aut.); Laboratoire de Physique et d'Étude des Materiaux, ESPCI, CNRS, UPMC, 10 rue Vauquelin/75231 Paris/France (3 aut.); Instituto de Fisica de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970/São Carlos, São Paulo/Brésil (4 aut., 5 aut.); Departamento de Quimica, ICEB, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto/Minas Gerais/Brésil (6 aut.)
Publication en série; Niveau analytique
Crystal growth & design; ISSN 1528-7483; Etats-Unis; Da. 2011; Vol. 11; No. 12; Pp. 5567-5573; Bibl. 27 ref.AnglaisAt room temperature, calcium tantalite (CaTa2O6) is known to exhibit I three stable polymorphs, depending on the crystal growth conditions. In this work, the laser-heated pedestal growth method was used to obtain CaTa2O6 single crystal fibers in its quenched (ordered) cubic polymorph, attractive for optical applications. X-ray diffraction, Raman scattering and infrared spectroscopy showed that the fibers grew into the centrosymmetrical Pm3 space group. The growth axis was determined as [00 1 ]. The cylindrical fibers (20 mm long and 400 μm wide) showed good optical quality, without cracks or striations, but with small facets, parallel to crystal edges or to in-plane edge bicetrices. A comprehensive set of the optical phonons for this cubic structure was obtained, consisting of 13 (of 16 foreseen) triply degenerate polar phonons, and all the 21 predicted Raman modes. By using special scattering geometries, the Raman bands were attributed to their corresponding irreducible representations. In general, the phonons showed rather large damping constants, which do not compromise the designed optical applications in compact lasers but increase the losses in the microwave range, even though the dielectric response is quite adequate for microwave applications. Quenched defects and crystal polymorphism can be at the origin of the large phonon damping.001B60A50K; 001B60A66H; 001B80A10ASpectrométrie Raman; Phonon optique; Réseau cubique; Polymorphisme; Structure cristalline; Calcium; Croissance cristalline; Condition opératoire; Méthode LHPG; Fibre; Diffraction RX; Diffusion Raman; Spectrométrie IR; Groupe espace; Calcium Tantalate; Monocristal; Mécanisme croissance; Propriété optique; Représentation irréductible; Amortissement; Défaut trempe; Défaut cristallin; CaTa2O6; 6166H; 6150K; 8110ARaman spectroscopy; Optical phonons; Cubic lattices; Polymorphism; Crystal structure; Calcium; Crystal growth; Operating conditions; Laser heated pedestal growth method; Fibers; XRD; Raman scattering; Infrared spectroscopy; Space groups; Calcium Tantalates; Monocrystals; Growth mechanism; Optical properties; Irreducible representations; Damping; Quench defect; Crystal defectsCondición operatoria; Método LHPG; Difusión Ramán; Mecanismo crecimiento; Defecto templeINIST-27261.35400050594648052012-0043070 001B61 Fabry-Perot interferometers built by photonic crystal fiber pressurization during fusion splicingFernando C. FaveroPontifical Catholic University of Rio de Janeiro, Rua Marques de São Vicente 22522453-900, Rio de Janeiro, RJBRA1 aut.ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park08860, Castelldefels, BarcelonaESP1 aut.3 aut.4 aut.Geraud BouwmansPhLAM/IRCICA-Laboratoire de Physique des Lasers Atomes et Molécules/Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancée, Université Lille, CNRS UMR8523/USR338059658 Villeneuve d'AscqFRA2 aut.5 aut.Vittoria FinazziICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park08860, Castelldefels, BarcelonaESP1 aut.3 aut.4 aut.Joel VillatoroICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park08860, Castelldefels, BarcelonaESP1 aut.3 aut.4 aut.Valerio PruneriPhLAM/IRCICA-Laboratoire de Physique des Lasers Atomes et Molécules/Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancée, Université Lille, CNRS UMR8523/USR338059658 Villeneuve d'AscqFRA2 aut.5 aut.Also with ICREA-Institució Catalana de Recerca i Estudis Avançats08010, BarcelonaESP5 aut.12-00433392011PASCAL 12-0043339 INISTPascal:12-0043339000D340146-9592Opt. lett.Optics lettersFabry-Perot interferometersFiber optic sensorsLight interferometryMicrostructured fiberOptical fibersInterféromètre Fabry PérotCapteur fibre optiqueInterférométrie optiqueFibre optiqueFibre microstructurée0707D4281P0760L42810146-9592OPLEDPOpt. lett.3621Fabry-Perot interferometers built by photonic crystal fiber pressurization during fusion splicingFAVERO (Fernando C.)BOUWMANS (Geraud)FINAZZI (Vittoria)VILLATORO (Joel)PRUNERI (Valerio)Pontifical Catholic University of Rio de Janeiro, Rua Marques de São Vicente 22522453-900, Rio de Janeiro, RJBRA1 aut.ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park08860, Castelldefels, BarcelonaESP1 aut.3 aut.4 aut.PhLAM/IRCICA-Laboratoire de Physique des Lasers Atomes et Molécules/Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancée, Université Lille, CNRS UMR8523/USR338059658 Villeneuve d'AscqFRA2 aut.5 aut.Also with ICREA-Institució Catalana de Recerca i Estudis Avançats08010, BarcelonaESP5 aut.4191-41932011ENGINIST177753540005059839102400000© 2012 INIST-CNRS. All rights reserved.17 ref.12-0043339PAOptics lettersUSA001B40B81001B00G07D001B40B81P001B00G60LInterféromètre Fabry Pérot11Fabry-Perot interferometers11Capteur fibre optique12Fiber optic sensors12Interférométrie optique30Light interferometry30Fibre optique47Optical fibers47Fibre microstructurée48Microstructured fiber480707DINC834281PINC840760LINC854281INC91023PASCAL 12-0043339 INISTFabry-Perot interferometers built by photonic crystal fiber pressurization during fusion splicingFAVERO (Fernando C.); BOUWMANS (Geraud); FINAZZI (Vittoria); VILLATORO (Joel); PRUNERI (Valerio)Pontifical Catholic University of Rio de Janeiro, Rua Marques de São Vicente 225/22453-900, Rio de Janeiro, RJ/Brésil (1 aut.); ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park/08860, Castelldefels, Barcelona/Espagne (1 aut., 3 aut., 4 aut.); PhLAM/IRCICA-Laboratoire de Physique des Lasers Atomes et Molécules/Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancée, Université Lille, CNRS UMR8523/USR3380/59658 Villeneuve d'Ascq/France (2 aut., 5 aut.); Also with ICREA-Institució Catalana de Recerca i Estudis Avançats/08010, Barcelona/Espagne (5 aut.)
Publication en série; Niveau analytique
Optics letters; ISSN 0146-9592; Coden OPLEDP; Etats-Unis; Da. 2011; Vol. 36; No. 21; Pp. 4191-4193; Bibl. 17 ref.Anglais001B40B81; 001B00G07D; 001B40B81P; 001B00G60LInterféromètre Fabry Pérot; Capteur fibre optique; Interférométrie optique; Fibre optique; Fibre microstructurée; 0707D; 4281P; 0760L; 4281Fabry-Perot interferometers; Fiber optic sensors; Light interferometry; Optical fibers; Microstructured fiberINIST-17775.35400050598391024012-0043339 001B62 Days out of role due to common physical and mental conditions: results from the WHO World Mental Health surveysJ. AlonsoHealth Services Research Unit, IMIM-Institut de Recerca Hospital del MarBarcelonaESP1 aut.3 aut.CIBER en Epidemiología y Salud Pública (CIBERESP)BarcelonaESP1 aut.3 aut.M. PetukhovaDepartment of Health Policy, Harvard UniversityBoston, MAUSA2 aut.29 aut.G. VilagutHealth Services Research Unit, IMIM-Institut de Recerca Hospital del MarBarcelonaESP1 aut.3 aut.CIBER en Epidemiología y Salud Pública (CIBERESP)BarcelonaESP1 aut.3 aut.S. ChatterjiWorld Health OrganizationGenevaCHE4 aut.6 aut.S. HeeringaUniversity of Michigan, Institute for Social ResearchAnn Arbor, MIUSA5 aut.T. B. St NWorld Health OrganizationGenevaCHE4 aut.6 aut.A. O. AlhamzawiDepartment of Psychiatry, College of Medicine, Qadisia UniversityDiwania ProvinceIRQ7 aut.M. C. VianaSection of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of São PauloSão PauloBRA8 aut.M. AngermeyerCentre for Public Mental HealthGösing am WagramAUT9 aut.E. BrometDepartment of Psychiatry, State University of New York at Stony BrookStony Brook, NYUSA10 aut.R. BruffaertsDepartment of Psychiatry, University Hospital GasthuisbergLeuvenBEL11 aut.G. De GirolamoIRCCS Centro S Giovanni di Dio FatebenefratelliBresciaITA12 aut.S. FlorescuScoala Nationala de Sanatate Publica si Perfectionare in Domeniul SanitarBucurestiROU13 aut.O. GurejeDepartment of Psychiatry, University College HospitalIbadanNGA14 aut.J. M. HaroParc Sanitari Sant Joan de Déu, CIBERSAM, Sant Boi de LlobregatBarcelonaESP15 aut.H. HinkovDepartment of Global Mental Health, National Center for Public Health ProtectionSofiaBGR16 aut.C-Y HuShenzhen Institute of Mental Health & Shenzhen Kangning HospitalShenzhenCHN17 aut.E. G. KaramDepartment of Psychiatry and Clinical Psychology, Saint George Hospital University Medical Center, Department of Psychiatry and Clinical Psychology, Faculty of Medicine, Balamand University Medical School, and the Institute for Development, Research, Advocacy and Applied Care (IDRAAC)BeirutLBN18 aut.V. KovessEA 4069 Université Paris Descartes and EHESP School for Public Health Department of EpidemiologyParisFRA19 aut.D. LevinsonResearch and Planning, Mental Health Services Ministry of HealthJerusalemISR20 aut.M. E. Medina-MoraNational Institute of PsychiatryMexico CityMEX21 aut.Y. NakamuraDepartment of Public Health, Jichi Medical SchoolTochigi-kenJPN22 aut.J. OrmelDepartment of Psychiatry and Psychiatric Epidemiology, University Medical Center Groningen, University Center for PsychiatryGroningenNLD23 aut.J. Posada-VillaMinistry of Social Protection, Colegio Mayor de Cundinamarca UniversityBogotaCOL24 aut.R. SagarDepartment of Psychiatry, All India Institute of Medical SciencesDelhiIND25 aut.K. M. ScottDepartment of Psychological Medicine, Wellington School of Medicine and Health SciencesWellingtonNZL26 aut.A. TsangD. R. WilliamsR. C. KesslerDepartment of Health Policy, Harvard UniversityBoston, MAUSA2 aut.29 aut.12-00443172011PASCAL 12-0044317 INISTPascal:12-0044317000D33FRANCIS 12-0044317 INIST1359-4184Mol. psychiatryMolecular psychiatryChronic diseaseDisabilityHandicapHealth economyHumanInternationalMental disorderMental healthPrevalenceProductivitySocial environmentWHOWork disabilityOMSSanté mentaleIncapacité travailTrouble psychiatriqueMaladie chroniqueHandicapIncapacitéProductivitéPrévalenceEconomie santéEnvironnement socialInternationalHommeCharge de morbidité
Days out of role because of health problems are a major source of lost human capital. We examined the relative importance of commonly occurring physical and mental disorders in accounting for days out of role in 24 countries that participated in the World Health Organization (WHO) World Mental Health (WMH) surveys. Face-to-face interviews were carried out with 62971 respondents (72.0% pooled response rate). Presence of ten chronic physical disorders and nine mental disorders was assessed for each respondent along with information about the number of days in the past month each respondent reported being totally unable to work or carry out their other normal daily activities because of problems with either physical or mental health. Multiple regression analysis was used to estimate associations of specific conditions and comorbidities with days out of role, controlling by basic socio-demographics (age, gender, employment status and country). Overall, 12.8% of respondents had some day totally out of role, with a median of 51.1 a year. The strongest individual-level effects (days out of role per year) were associated with neurological disorders (17.4), bipolar disorder (17.3) and post-traumatic stress disorder (15.2). The strongest population-level effect was associated with pain conditions, which accounted for 21.5% of all days out of role (population attributable risk proportion). The 19 conditions accounted for 62.2% of all days out of role. Common health conditions, including mental disorders, make up a large proportion of the number of days out of role across a wide range of countries and should be addressed to substantially increase overall productivity.
1359-4184Mol. psychiatry1612Days out of role due to common physical and mental conditions: results from the WHO World Mental Health surveysALONSO (J.)PETUKHOVA (M.)VILAGUT (G.)CHATTERJI (S.)HEERINGA (S.)ÜSTÜN (T. B.)ALHAMZAWI (A. O.)VIANA (M. C.)ANGERMEYER (M.)BROMET (E.)BRUFFAERTS (R.)DE GIROLAMO (G.)FLORESCU (S.)GUREJE (O.)HARO (J. M.)HINKOV (H.)HU (C-Y)KARAM (E. G.)KOVESS (V.)LEVINSON (D.)MEDINA-MORA (M. E.)NAKAMURA (Y.)ORMEL (J.)POSADA-VILLA (J.)SAGAR (R.)SCOTT (K. M.)TSANG (A.)WILLIAMS (D. R.)KESSLER (R. C.)Health Services Research Unit, IMIM-Institut de Recerca Hospital del MarBarcelonaESP1 aut.3 aut.CIBER en Epidemiología y Salud Pública (CIBERESP)BarcelonaESP1 aut.3 aut.Department of Health Policy, Harvard UniversityBoston, MAUSA2 aut.29 aut.World Health OrganizationGenevaCHE4 aut.6 aut.University of Michigan, Institute for Social ResearchAnn Arbor, MIUSA5 aut.Department of Psychiatry, College of Medicine, Qadisia UniversityDiwania ProvinceIRQ7 aut.Section of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of São PauloSão PauloBRA8 aut.Centre for Public Mental HealthGösing am WagramAUT9 aut.Department of Psychiatry, State University of New York at Stony BrookStony Brook, NYUSA10 aut.Department of Psychiatry, University Hospital GasthuisbergLeuvenBEL11 aut.IRCCS Centro S Giovanni di Dio FatebenefratelliBresciaITA12 aut.Scoala Nationala de Sanatate Publica si Perfectionare in Domeniul SanitarBucurestiROU13 aut.Department of Psychiatry, University College HospitalIbadanNGA14 aut.Parc Sanitari Sant Joan de Déu, CIBERSAM, Sant Boi de LlobregatBarcelonaESP15 aut.Department of Global Mental Health, National Center for Public Health ProtectionSofiaBGR16 aut.Shenzhen Institute of Mental Health & Shenzhen Kangning HospitalShenzhenCHN17 aut.Department of Psychiatry and Clinical Psychology, Saint George Hospital University Medical Center, Department of Psychiatry and Clinical Psychology, Faculty of Medicine, Balamand University Medical School, and the Institute for Development, Research, Advocacy and Applied Care (IDRAAC)BeirutLBN18 aut.EA 4069 Université Paris Descartes and EHESP School for Public Health Department of EpidemiologyParisFRA19 aut.Research and Planning, Mental Health Services Ministry of HealthJerusalemISR20 aut.National Institute of PsychiatryMexico CityMEX21 aut.Department of Public Health, Jichi Medical SchoolTochigi-kenJPN22 aut.Department of Psychiatry and Psychiatric Epidemiology, University Medical Center Groningen, University Center for PsychiatryGroningenNLD23 aut.Ministry of Social Protection, Colegio Mayor de Cundinamarca UniversityBogotaCOL24 aut.Department of Psychiatry, All India Institute of Medical SciencesDelhiIND25 aut.Department of Psychological Medicine, Wellington School of Medicine and Health SciencesWellingtonNZL26 aut.1234-12462011ENGINIST264393540005073630601000000© 2012 INIST-CNRS. All rights reserved.39 ref.12-0044317PAMolecular psychiatryGBRDays out of role because of health problems are a major source of lost human capital. We examined the relative importance of commonly occurring physical and mental disorders in accounting for days out of role in 24 countries that participated in the World Health Organization (WHO) World Mental Health (WMH) surveys. Face-to-face interviews were carried out with 62971 respondents (72.0% pooled response rate). Presence of ten chronic physical disorders and nine mental disorders was assessed for each respondent along with information about the number of days in the past month each respondent reported being totally unable to work or carry out their other normal daily activities because of problems with either physical or mental health. Multiple regression analysis was used to estimate associations of specific conditions and comorbidities with days out of role, controlling by basic socio-demographics (age, gender, employment status and country). Overall, 12.8% of respondents had some day totally out of role, with a median of 51.1 a year. The strongest individual-level effects (days out of role per year) were associated with neurological disorders (17.4), bipolar disorder (17.3) and post-traumatic stress disorder (15.2). The strongest population-level effect was associated with pain conditions, which accounted for 21.5% of all days out of role (population attributable risk proportion). The 19 conditions accounted for 62.2% of all days out of role. Common health conditions, including mental disorders, make up a large proportion of the number of days out of role across a wide range of countries and should be addressed to substantially increase overall productivity.002B18H08OMS01WHO01OMS01Santé mentale02Mental health02Salud mental02Incapacité travail03Work disability03Incapacidad laboral03Trouble psychiatrique04Mental disorder04Trastorno psiquiátrico04Maladie chroniqueNM05Chronic diseaseNM05Enfermedad crónicaNM05Handicap06Handicap06Discapacidad06Incapacité07Disability07Incapacidad07Productivité08Productivity08Productividad08Prévalence09Prevalence09Prevalencia09Economie santé10Health economy10Economía salud10Environnement social11Social environment11Contexto social11International12International12Internacional12Homme18Human18Hombre18Charge de morbiditéINC86Epidémiologie37Epidemiology37Epidemiología37Santé publique38Public health38Salud pública38023PASCAL 12-0044317 INISTDays out of role due to common physical and mental conditions: results from the WHO World Mental Health surveysALONSO (J.); PETUKHOVA (M.); VILAGUT (G.); CHATTERJI (S.); HEERINGA (S.); ÜSTÜN (T. B.); ALHAMZAWI (A. O.); VIANA (M. C.); ANGERMEYER (M.); BROMET (E.); BRUFFAERTS (R.); DE GIROLAMO (G.); FLORESCU (S.); GUREJE (O.); HARO (J. M.); HINKOV (H.); HU (C-Y); KARAM (E. G.); KOVESS (V.); LEVINSON (D.); MEDINA-MORA (M. E.); NAKAMURA (Y.); ORMEL (J.); POSADA-VILLA (J.); SAGAR (R.); SCOTT (K. M.); TSANG (A.); WILLIAMS (D. R.); KESSLER (R. C.)Health Services Research Unit, IMIM-Institut de Recerca Hospital del Mar/Barcelona/Espagne (1 aut., 3 aut.); CIBER en Epidemiología y Salud Pública (CIBERESP)/Barcelona/Espagne (1 aut., 3 aut.); Department of Health Policy, Harvard University/Boston, MA/Etats-Unis (2 aut., 29 aut.); World Health Organization/Geneva/Suisse (4 aut., 6 aut.); University of Michigan, Institute for Social Research/Ann Arbor, MI/Etats-Unis (5 aut.); Department of Psychiatry, College of Medicine, Qadisia University/Diwania Province/Iraq (7 aut.); Section of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of São Paulo/São Paulo/Brésil (8 aut.); Centre for Public Mental Health/Gösing am Wagram/Autriche (9 aut.); Department of Psychiatry, State University of New York at Stony Brook/Stony Brook, NY/Etats-Unis (10 aut.); Department of Psychiatry, University Hospital Gasthuisberg/Leuven/Belgique (11 aut.); IRCCS Centro S Giovanni di Dio Fatebenefratelli/Brescia/Italie (12 aut.); Scoala Nationala de Sanatate Publica si Perfectionare in Domeniul Sanitar/Bucuresti/Roumanie (13 aut.); Department of Psychiatry, University College Hospital/Ibadan/Nigéria (14 aut.); Parc Sanitari Sant Joan de Déu, CIBERSAM, Sant Boi de Llobregat/Barcelona/Espagne (15 aut.); Department of Global Mental Health, National Center for Public Health Protection/Sofia/Bulgarie (16 aut.); Shenzhen Institute of Mental Health & Shenzhen Kangning Hospital/Shenzhen/Chine (17 aut.); Department of Psychiatry and Clinical Psychology, Saint George Hospital University Medical Center, Department of Psychiatry and Clinical Psychology, Faculty of Medicine, Balamand University Medical School, and the Institute for Development, Research, Advocacy and Applied Care (IDRAAC)/Beirut/Liban (18 aut.); EA 4069 Université Paris Descartes and EHESP School for Public Health Department of Epidemiology/Paris/France (19 aut.); Research and Planning, Mental Health Services Ministry of Health/Jerusalem/Israël (20 aut.); National Institute of Psychiatry/Mexico City/Mexique (21 aut.); Department of Public Health, Jichi Medical School/Tochigi-ken/Japon (22 aut.); Department of Psychiatry and Psychiatric Epidemiology, University Medical Center Groningen, University Center for Psychiatry/Groningen/Pays-Bas (23 aut.); Ministry of Social Protection, Colegio Mayor de Cundinamarca University/Bogota/Colombie (24 aut.); Department of Psychiatry, All India Institute of Medical Sciences/Delhi/Inde (25 aut.); Department of Psychological Medicine, Wellington School of Medicine and Health Sciences/Wellington/Nouvelle-Zélande (26 aut.)
Publication en série; Niveau analytique
Molecular psychiatry; ISSN 1359-4184; Royaume-Uni; Da. 2011; Vol. 16; No. 12; Pp. 1234-1246; Bibl. 39 ref.AnglaisDays out of role because of health problems are a major source of lost human capital. We examined the relative importance of commonly occurring physical and mental disorders in accounting for days out of role in 24 countries that participated in the World Health Organization (WHO) World Mental Health (WMH) surveys. Face-to-face interviews were carried out with 62971 respondents (72.0% pooled response rate). Presence of ten chronic physical disorders and nine mental disorders was assessed for each respondent along with information about the number of days in the past month each respondent reported being totally unable to work or carry out their other normal daily activities because of problems with either physical or mental health. Multiple regression analysis was used to estimate associations of specific conditions and comorbidities with days out of role, controlling by basic socio-demographics (age, gender, employment status and country). Overall, 12.8% of respondents had some day totally out of role, with a median of 51.1 a year. The strongest individual-level effects (days out of role per year) were associated with neurological disorders (17.4), bipolar disorder (17.3) and post-traumatic stress disorder (15.2). The strongest population-level effect was associated with pain conditions, which accounted for 21.5% of all days out of role (population attributable risk proportion). The 19 conditions accounted for 62.2% of all days out of role. Common health conditions, including mental disorders, make up a large proportion of the number of days out of role across a wide range of countries and should be addressed to substantially increase overall productivity.002B18H08OMS; Santé mentale; Incapacité travail; Trouble psychiatrique; Maladie chronique; Handicap; Incapacité; Productivité; Prévalence; Economie santé; Environnement social; International; Homme; Charge de morbiditéEpidémiologie; Santé publiqueWHO; Mental health; Work disability; Mental disorder; Chronic disease; Handicap; Disability; Productivity; Prevalence; Health economy; Social environment; International; HumanEpidemiology; Public healthOMS; Salud mental; Incapacidad laboral; Trastorno psiquiátrico; Enfermedad crónica; Discapacidad; Incapacidad; Productividad; Prevalencia; Economía salud; Contexto social; Internacional; HombreINIST-26439.35400050736306010012-0044317 001B63 Quantitative analysis of renal vascularization in fetuses with urinary tract obstruction by three-dimensional power-DopplerLisandra Stein BernardesDepartamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São PauloSão PauloBRA1 aut.2 aut.5 aut.7 aut.Rossana P. V. FranciscoDepartamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São PauloSão PauloBRA1 aut.2 aut.5 aut.7 aut.Julien SaadaService de Gynécologie Obstétrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA3 aut.8 aut.Service de Gynécologie Obstetrique, Hôpital Antoine Beclere, APHP, Université Paris SudClamartFRA3 aut.Remi SalomonDivision of Nephrologie Pédiatrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA4 aut.Rodrigo RuanoDepartamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São PauloSão PauloBRA1 aut.2 aut.5 aut.7 aut.Stephen Lortad-JacobDivision of Chirurgie Pediatrique Department of Pediatrics, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA6 aut.Marcelo ZugaibDepartamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São PauloSão PauloBRA1 aut.2 aut.5 aut.7 aut.Alexandra BenachiService de Gynécologie Obstétrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA3 aut.8 aut.12-00464302011PASCAL 12-0046430 INISTPascal:12-0046430000D320002-9378Am. j. obstet. gynecol.American journal of obstetrics and gynecologyDoppler ultrasound studyFetusGynecologyKidneyObstetricsQuantitative analysisUrinary tract obstructionVascularizationObstruction des voies urinairesAnalyse quantitativeReinDopplérométrieVascularisationFoetusGynécologieObstétrique
OBJECTIVE: To evaluate the applicability of 3-dimensional evaluation of renal vascularization for predicting postnatal renal function in fetuses with suspected urinary obstruction. STUDY DESIGN: Fetuses were evaluated by 3-dimensional power-Doppler histogram, and vascular indices were estimated. Depth between the probe and the renal cortex was also evaluated. Postnatal follow-up was obtained in all cases and the main outcome was renal impairment. RESULTS: Twenty-three fetuses with urinary dilatation (cases) and 73 with normal renal morphology (controls) were included in the current study. Five (21.7%) cases developed renal impairment. Vascularization index and vascularization and flow index were significantly lower in fetuses that developed renal impairment compared with those with normal renal function (P = .009 and P = .036, respectively). The 3 vascular indexes correlated with depth. Percentage of depth-corrected vascularization index and vascularization flow index were lower in fetuses developing postnatal renal failure. CONCLUSION: Fetal renal vascularity (vascularization index and vascularization and flow index) was significantly lower in fetuses that developed renal impairment.
0002-9378AJOGAHAm. j. obstet. gynecol.2056Quantitative analysis of renal vascularization in fetuses with urinary tract obstruction by three-dimensional power-DopplerSTEIN BERNARDES (Lisandra)FRANCISCO (Rossana P. V.)SAADA (Julien)SALOMON (Remi)RUANO (Rodrigo)LORTAD-JACOB (Stephen)ZUGAIB (Marcelo)BENACHI (Alexandra)Departamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São PauloSão PauloBRA1 aut.2 aut.5 aut.7 aut.Service de Gynécologie Obstétrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA3 aut.8 aut.Division of Nephrologie Pédiatrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA4 aut.Division of Chirurgie Pediatrique Department of Pediatrics, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris DescartesParisFRA6 aut.Service de Gynécologie Obstetrique, Hôpital Antoine Beclere, APHP, Université Paris SudClamartFRA3 aut.572-5732011ENGINIST30533540005056991302300000© 2012 INIST-CNRS. All rights reserved.12-0046430PAAmerican journal of obstetrics and gynecologyUSAOBJECTIVE: To evaluate the applicability of 3-dimensional evaluation of renal vascularization for predicting postnatal renal function in fetuses with suspected urinary obstruction. STUDY DESIGN: Fetuses were evaluated by 3-dimensional power-Doppler histogram, and vascular indices were estimated. Depth between the probe and the renal cortex was also evaluated. Postnatal follow-up was obtained in all cases and the main outcome was renal impairment. RESULTS: Twenty-three fetuses with urinary dilatation (cases) and 73 with normal renal morphology (controls) were included in the current study. Five (21.7%) cases developed renal impairment. Vascularization index and vascularization and flow index were significantly lower in fetuses that developed renal impairment compared with those with normal renal function (P = .009 and P = .036, respectively). The 3 vascular indexes correlated with depth. Percentage of depth-corrected vascularization index and vascularization flow index were lower in fetuses developing postnatal renal failure. CONCLUSION: Fetal renal vascularity (vascularization index and vascularization and flow index) was significantly lower in fetuses that developed renal impairment.002B20002B14E02002B24C01Obstruction des voies urinairesNM01Urinary tract obstructionNM01Obstrucción urinariaNM01Analyse quantitative02Quantitative analysis02Análisis cuantitativo02Rein03Kidney03Riñón03Dopplérométrie04Doppler ultrasound study04Dopplerometría04Vascularisation05Vascularization05Vascularización05Foetus06Fetus06Feto06Gynécologie08Gynecology08Ginecología08Obstétrique09Obstetrics09Obstétrico09Pathologie de l'appareil urinaire37Urinary system disease37Aparato urinario patología37Pathologie des voies urinaires38Urinary tract disease38Vía urinaria patología38Exploration ultrason39Sonography39Exploración ultrasonido39023OTOOTOPASCAL 12-0046430 INISTQuantitative analysis of renal vascularization in fetuses with urinary tract obstruction by three-dimensional power-DopplerSTEIN BERNARDES (Lisandra); FRANCISCO (Rossana P. V.); SAADA (Julien); SALOMON (Remi); RUANO (Rodrigo); LORTAD-JACOB (Stephen); ZUGAIB (Marcelo); BENACHI (Alexandra)Departamento de Obstetrícia e Ginecologia (Drs Bernardes, Francisco, Ruano, and Zugaib), Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo/São Paulo/Brésil (1 aut., 2 aut., 5 aut., 7 aut.); Service de Gynécologie Obstétrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris Descartes/Paris/France (3 aut., 8 aut.); Division of Nephrologie Pédiatrique, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris Descartes/Paris/France (4 aut.); Division of Chirurgie Pediatrique Department of Pediatrics, Maternité Hôspital Necker-Enfants Malades, APHP, Université Paris Descartes/Paris/France (6 aut.); Service de Gynécologie Obstetrique, Hôpital Antoine Beclere, APHP, Université Paris Sud/Clamart/France (3 aut.)
Publication en série; Niveau analytique
American journal of obstetrics and gynecology; ISSN 0002-9378; Coden AJOGAH; Etats-Unis; Da. 2011; Vol. 205; No. 6; Pp. 572-573AnglaisOBJECTIVE: To evaluate the applicability of 3-dimensional evaluation of renal vascularization for predicting postnatal renal function in fetuses with suspected urinary obstruction. STUDY DESIGN: Fetuses were evaluated by 3-dimensional power-Doppler histogram, and vascular indices were estimated. Depth between the probe and the renal cortex was also evaluated. Postnatal follow-up was obtained in all cases and the main outcome was renal impairment. RESULTS: Twenty-three fetuses with urinary dilatation (cases) and 73 with normal renal morphology (controls) were included in the current study. Five (21.7%) cases developed renal impairment. Vascularization index and vascularization and flow index were significantly lower in fetuses that developed renal impairment compared with those with normal renal function (P = .009 and P = .036, respectively). The 3 vascular indexes correlated with depth. Percentage of depth-corrected vascularization index and vascularization flow index were lower in fetuses developing postnatal renal failure. CONCLUSION: Fetal renal vascularity (vascularization index and vascularization and flow index) was significantly lower in fetuses that developed renal impairment.002B20; 002B14E02; 002B24C01Obstruction des voies urinaires; Analyse quantitative; Rein; Dopplérométrie; Vascularisation; Foetus; Gynécologie; ObstétriquePathologie de l'appareil urinaire; Pathologie des voies urinaires; Exploration ultrasonUrinary tract obstruction; Quantitative analysis; Kidney; Doppler ultrasound study; Vascularization; Fetus; Gynecology; ObstetricsUrinary system disease; Urinary tract disease; SonographyObstrucción urinaria; Análisis cuantitativo; Riñón; Dopplerometría; Vascularización; Feto; Ginecología; ObstétricoINIST-3053.35400050569913023012-0046430 001B64 The size of excavators within a polymorphic termite species governs tunnel topologyIves HaifigDepartamento de Biologia, Instituto de Biociencias, UNESP, Universidade Estadual PaulistaRio Claro, SPBRA1 aut.3 aut.4 aut.Université de Toulouse, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.CNRS, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.Christian JostUniversité de Toulouse, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.CNRS, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.Vanelize JaneiDepartamento de Biologia, Instituto de Biociencias, UNESP, Universidade Estadual PaulistaRio Claro, SPBRA1 aut.3 aut.4 aut.Ana Maria Costa-LeonardoDepartamento de Biologia, Instituto de Biociencias, UNESP, Universidade Estadual PaulistaRio Claro, SPBRA1 aut.3 aut.4 aut.12-00470612011PASCAL 12-0047061 INISTPascal:12-0047061000D310003-3472Anim. behav. : (Print)Animal behaviour : (Print)IsopteraPolymorphismSocial insectTunnelsPolymorphismeInsecte socialTunnelIsoptera
Caste polymorphism in termites may provide specialization for different tasks in a colony, generating a division of labour that promotes fitness. The influence of polymorphism has been widely studied for many termite activities, although general patterns are missing in the literature. The aim of our study was to verify the influence of polymorphism on the tunnelling behaviour of termites and to test how the size of workers influences the network geometry. We hypothesized that larger workers dig fewer and longer tunnels, while smaller workers dig shorter and more ramified tunnels. We tested this hypothesis by separating groups of polymorphic workers of Velocitermes heteropterus according to their size and analysing the topology of their networks. The workers of V. heteropterus were first examined to ensure their dimorphism and then sexed to confirm their sexual polymorphism. The analysis of the tunnel networks showed that major female workers dug faster but with less bifurcations compared to minor male workers. When both types of workers were placed together, the resulting network topology was closer to that of the majors, suggesting that this class may govern the activities during tunnelling. Our results show that worker size influences the network architecture and that, in the case of V. heteropterus, the majors dominate both digging and the bifurcation rate.
0003-3472ANBEA8Anim. behav. : (Print)82p. 6The size of excavators within a polymorphic termite species governs tunnel topologyHAIFIG (Ives)JOST (Christian)JANEI (Vanelize)COSTA-LEONARDO (Ana Maria)Departamento de Biologia, Instituto de Biociencias, UNESP, Universidade Estadual PaulistaRio Claro, SPBRA1 aut.3 aut.4 aut.Université de Toulouse, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.CNRS, Centre de Recherches sur la Cognition AnimaleToulouseFRA1 aut.2 aut.1409-14142011ENGINIST70673540005059690802200000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0047061PAAnimal behaviour : (Print)NLDCaste polymorphism in termites may provide specialization for different tasks in a colony, generating a division of labour that promotes fitness. The influence of polymorphism has been widely studied for many termite activities, although general patterns are missing in the literature. The aim of our study was to verify the influence of polymorphism on the tunnelling behaviour of termites and to test how the size of workers influences the network geometry. We hypothesized that larger workers dig fewer and longer tunnels, while smaller workers dig shorter and more ramified tunnels. We tested this hypothesis by separating groups of polymorphic workers of Velocitermes heteropterus according to their size and analysing the topology of their networks. The workers of V. heteropterus were first examined to ensure their dimorphism and then sexed to confirm their sexual polymorphism. The analysis of the tunnel networks showed that major female workers dug faster but with less bifurcations compared to minor male workers. When both types of workers were placed together, the resulting network topology was closer to that of the majors, suggesting that this class may govern the activities during tunnelling. Our results show that worker size influences the network architecture and that, in the case of V. heteropterus, the majors dominate both digging and the bifurcation rate.002A12JPolymorphisme01Polymorphism01Polimorfismo01Insecte social02Social insect02Insecto social02Tunnel03Tunnels03Túnel03IsopteraNS49IsopteraNS49IsopteraNS49InsectaNSInsectaNSInsectaNSArthropodaNSArthropodaNSArthropodaNSInvertebrataNSInvertebrataNSInvertebrataNS023OTOOTOPASCAL 12-0047061 INISTThe size of excavators within a polymorphic termite species governs tunnel topologyHAIFIG (Ives); JOST (Christian); JANEI (Vanelize); COSTA-LEONARDO (Ana Maria)Departamento de Biologia, Instituto de Biociencias, UNESP, Universidade Estadual Paulista/Rio Claro, SP/Brésil (1 aut., 3 aut., 4 aut.); Université de Toulouse, Centre de Recherches sur la Cognition Animale/Toulouse/France (1 aut., 2 aut.); CNRS, Centre de Recherches sur la Cognition Animale/Toulouse/France (1 aut., 2 aut.)
Publication en série; Niveau analytique
Animal behaviour : (Print); ISSN 0003-3472; Coden ANBEA8; Pays-Bas; Da. 2011; Vol. 82; No. p. 6; Pp. 1409-1414; Bibl. 1/4 p.AnglaisCaste polymorphism in termites may provide specialization for different tasks in a colony, generating a division of labour that promotes fitness. The influence of polymorphism has been widely studied for many termite activities, although general patterns are missing in the literature. The aim of our study was to verify the influence of polymorphism on the tunnelling behaviour of termites and to test how the size of workers influences the network geometry. We hypothesized that larger workers dig fewer and longer tunnels, while smaller workers dig shorter and more ramified tunnels. We tested this hypothesis by separating groups of polymorphic workers of Velocitermes heteropterus according to their size and analysing the topology of their networks. The workers of V. heteropterus were first examined to ensure their dimorphism and then sexed to confirm their sexual polymorphism. The analysis of the tunnel networks showed that major female workers dug faster but with less bifurcations compared to minor male workers. When both types of workers were placed together, the resulting network topology was closer to that of the majors, suggesting that this class may govern the activities during tunnelling. Our results show that worker size influences the network architecture and that, in the case of V. heteropterus, the majors dominate both digging and the bifurcation rate.002A12JPolymorphisme; Insecte social; Tunnel; IsopteraInsecta; Arthropoda; InvertebrataPolymorphism; Social insect; Tunnels; IsopteraInsecta; Arthropoda; InvertebrataPolimorfismo; Insecto social; Túnel; IsopteraINIST-7067.35400050596908022012-0047061 001B65 EIGENVALUE ESTIMATES FOR HYPERSURFACES IN ?<sup>m</sup> × <double-struck R> AND APPLICATIONSPierre BerardUNIVERSITÉ GRENOBLE 1 INSTITUT FOURIER (UJF-CNRS), BP 7438402 SAINT MARTIN D'HÈRESFRA1 aut.Philippe CastillonDÉPARTEMENT DES SCIENCES MATHÉMATIQUES CC 51 UNIVERSITÉ MONTPELLIER II, I3M (UMR 5149)34095 MONTPELLIERFRA2 aut.Marcos CavalcanteINSTITUTO DE MATEMÁTICA UNIVERSIDADE FEDERAL DE ALAGOAS57072-900 MACEIÓ ALBRA3 aut.12-00486672011PASCAL 12-0048667 INISTPascal:12-0048667000D300030-8730Pac. j. math.Pacific journal of mathematicsCurvatureEigenvalueHomogeneous manifoldHypersurfaceIndexLaplacianLower boundMinimal surfaceThree manifoldValeur propreHypersurfaceBorne inférieureLaplacienSurface minimaleCourbureIndice65F1565H1714J7047A1053A1057M27Variété homogèneVariété 3 dimensions
In the first part of this paper, we give a lower bound for the spectrum of the Laplacian on minimal hypersurfaces immersed into ?m x <double-struck R>. As an application, in dimension 2, we prove that a complete minimal surface with finite total extrinsic curvature has finite index. In the second part, we consider the operator L = Δg+a +bKg on a complete noncompact surface (M2, g). Assuming that L is nonnegative for some constants a > 0 and b > 1/4, we show that the infimum of the spectrum of M2 is bounded from above by a/(4b - 1). We apply this result to stable minimal surfaces immersed into homogeneous 3-manifolds.
0030-8730PJMAAIPac. j. math.2531EIGENVALUE ESTIMATES FOR HYPERSURFACES IN ?m × <double-struck R> AND APPLICATIONSBERARD (Pierre)CASTILLON (Philippe)CAVALCANTE (Marcos)UNIVERSITÉ GRENOBLE 1 INSTITUT FOURIER (UJF-CNRS), BP 7438402 SAINT MARTIN D'HÈRESFRA1 aut.DÉPARTEMENT DES SCIENCES MATHÉMATIQUES CC 51 UNIVERSITÉ MONTPELLIER II, I3M (UMR 5149)34095 MONTPELLIERFRA2 aut.INSTITUTO DE MATEMÁTICA UNIVERSIDADE FEDERAL DE ALAGOAS57072-900 MACEIÓ ALBRA3 aut.19-352011ENGINIST67253540005086138500200000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0048667PAPacific journal of mathematicsUSAIn the first part of this paper, we give a lower bound for the spectrum of the Laplacian on minimal hypersurfaces immersed into ?m x <double-struck R>. As an application, in dimension 2, we prove that a complete minimal surface with finite total extrinsic curvature has finite index. In the second part, we consider the operator L = Δg+a +bKg on a complete noncompact surface (M2, g). Assuming that L is nonnegative for some constants a > 0 and b > 1/4, we show that the infimum of the spectrum of M2 is bounded from above by a/(4b - 1). We apply this result to stable minimal surfaces immersed into homogeneous 3-manifolds.001A02K01001A02I01E001A02I01G001A02C05Valeur propre17Eigenvalue17Valor propio17Hypersurface18Hypersurface18Hipersuperficie18Borne inférieure19Lower bound19Cota inferior19Laplacien20Laplacian20Laplaciano20Surface minimale21Minimal surface21Superficie mínima21Courbure22Curvature22Curvatura22Indice23Index23Indice2365F15INC7065H17INC7114J70INC7247A10INC7353A10INC7457M27INC75Variété homogèneCD96Homogeneous manifoldCD96Variété 3 dimensionsCD97Three manifoldCD97030OTOOTOPASCAL 12-0048667 INISTEIGENVALUE ESTIMATES FOR HYPERSURFACES IN ?m × <double-struck R> AND APPLICATIONSBERARD (Pierre); CASTILLON (Philippe); CAVALCANTE (Marcos)UNIVERSITÉ GRENOBLE 1 INSTITUT FOURIER (UJF-CNRS), BP 74/38402 SAINT MARTIN D'HÈRES/France (1 aut.); DÉPARTEMENT DES SCIENCES MATHÉMATIQUES CC 51 UNIVERSITÉ MONTPELLIER II, I3M (UMR 5149)/34095 MONTPELLIER/France (2 aut.); INSTITUTO DE MATEMÁTICA UNIVERSIDADE FEDERAL DE ALAGOAS/57072-900 MACEIÓ AL/Brésil (3 aut.)
Publication en série; Niveau analytique
Pacific journal of mathematics; ISSN 0030-8730; Coden PJMAAI; Etats-Unis; Da. 2011; Vol. 253; No. 1; Pp. 19-35; Bibl. 1 p.1/4AnglaisIn the first part of this paper, we give a lower bound for the spectrum of the Laplacian on minimal hypersurfaces immersed into ?m x <double-struck R>. As an application, in dimension 2, we prove that a complete minimal surface with finite total extrinsic curvature has finite index. In the second part, we consider the operator L = Δg+a +bKg on a complete noncompact surface (M2, g). Assuming that L is nonnegative for some constants a > 0 and b > 1/4, we show that the infimum of the spectrum of M2 is bounded from above by a/(4b - 1). We apply this result to stable minimal surfaces immersed into homogeneous 3-manifolds.001A02K01; 001A02I01E; 001A02I01G; 001A02C05Valeur propre; Hypersurface; Borne inférieure; Laplacien; Surface minimale; Courbure; Indice; 65F15; 65H17; 14J70; 47A10; 53A10; 57M27; Variété homogène; Variété 3 dimensionsEigenvalue; Hypersurface; Lower bound; Laplacian; Minimal surface; Curvature; Index; Homogeneous manifold; Three manifoldValor propio; Hipersuperficie; Cota inferior; Laplaciano; Superficie mínima; Curvatura; IndiceINIST-6725.35400050861385002012-0048667 001B66 Outcomes in patients undergoing multivessel percutaneous coronary intervention using sirolimus-eluting stents: a report from the e-SELECT registryFlorim CuculiOxford Heart CentreOxfordGBR1 aut.2 aut.Adrian P. BanningOxford Heart CentreOxfordGBR1 aut.2 aut.Alexander AbizaidInstituto Dante Pazzanese de CardiologiaSao PaoloBRA3 aut.Antonio L. BartorelliCentro Cardiologico Monzino, IRCCS, University of MilanMilanITA4 aut.Ana C. BauxCordis Clinical Research EuropeWaterlooBEL5 aut.13 aut.15 aut.Vladimir DzavikPeter Munk Cardiac Centre, University Health NetworkTorontoCAN6 aut.Stepehen EllisCleveland Clinic FoundationCleveland, OHUSA7 aut.Runlin GaoCardiovascular Institute and Fu Wai HospitalBeijingCHN8 aut.David HolmesMayo ClinicRochester, MNUSA9 aut.Myung H. JeongHeart Center of Chonnam National University HospitalGwangJuKOR10 aut.Victor LegrandCentre Hospitalier UniversitaireLiègeBEL11 aut.Franz-Josef NeumannHerz-Zentrum Bad KrozingenBad KrozingenDEU12 aut.Maria NyakernCordis Clinical Research EuropeWaterlooBEL5 aut.13 aut.15 aut.Christian SpauldingDepartment of Cardiology, Cochin Hospital, Assistance Publique Hôpitaux de Paris and INSERM U 970, Paris Descartes UniversityParisFRA14 aut.Hans-Peter StollCordis Clinical Research EuropeWaterlooBEL5 aut.13 aut.15 aut.Stephen WorthleyCardiovascular investigation unit Royal Adelaide HospitalAdelaideAUS16 aut.Philip UrbanLa Tour HospitalGenevaCHE17 aut.12-00507862011PASCAL 12-0050786 INISTPascal:12-0050786000D291774-024XEuroInterventionEuroInterventionAngioplastyAntibioticAntineoplastic agentAtherectomyComplexesCoronary arteryCoronary heart diseaseDrug eluting stentHumanImmunosuppressive agentInstrumentation therapyLesionPatientPercutaneous routePrognosisSirolimusCardiopathie coronairePronosticHommeMaladeAngioplastieArtère coronaireAthérectomieStent à élution médicamenteuseVoie percutanéeSirolimusImmunodépresseurComplexeLésionTraitement instrumentalAntibiotiqueAnticancéreux
Aims: Performing percutaneous coronary intervention (PCI) to multiple coronary lesions during the same procedure has potential economic and social advantages. However comprehensive outcome data of real world practice in a large population is limited. We aimed to compare short- and long-term outcomes between patients with multivessel coronary artery disease who either underwent single- or multivessel PCI within the e-SELECT registry. Methods and results: The e-SELECT registry combines data collected at 320 medical centres in 56 countries where patients received CYPHER Select® or CYPHER Select® Plus sirolimus-eluting stent (SES). Rates of myocardial infarction and major adverse cardiac event (MACE) (defined as any death, myocardial infarction or target lesion revascularisation) were compared between patients undergoing single-vessel versus multivessel PCI. A total of 15,147 patients who satisfied the inclusion criteria were included in the e-SELECT registry. Two thousand two hundred and seventy-eight (2,278) subjects (15%) underwent multivessel PCI and 12,869 (85%) had single-vessel PCI. The mean age was higher in the multivessel PCI group (63 vs. 62 years, p<0.001) and there was a higher prevalence of diabetes mellitus (32.4 vs. 30.0%, p=0.02). Lesions were more complex in the single-PCI group while pre- and post-dilatation were less common in the multivessel PCI group. Myocardial infarction within the first 30 days post PCI was more common in the multivessel PCI group (1.9 vs. 0.8%, p<0.001) and most of the infarctions were periprocedural (1.3 vs. 0.6%, p=0.001). Mortality and myocardial infarction at one-year were higher in the multivessel PCI group resulting in a significantly higher MACE (6.1 vs. 4.6%, p=0.005). Conclusions: Overall procedural and one year outcomes were excellent for both single- and multivessel procedures. However despite lower lesion complexity, performing multivessel PCI was associated with higher rates of periprocedural myocardial infarction and MACE when compared to single-vessel PCI in the e-SELECT registry.
1774-024XEuroIntervention78Outcomes in patients undergoing multivessel percutaneous coronary intervention using sirolimus-eluting stents: a report from the e-SELECT registryCUCULI (Florim)BANNING (Adrian P.)ABIZAID (Alexander)BARTORELLI (Antonio L.)BAUX (Ana C.)DZAVIK (Vladimir)ELLIS (Stepehen)GAO (Runlin)HOLMES (David)JEONG (Myung H.)LEGRAND (Victor)NEUMANN (Franz-Josef)NYAKERN (Maria)SPAULDING (Christian)STOLL (Hans-Peter)WORTHLEY (Stephen)URBAN (Philip)Oxford Heart CentreOxfordGBR1 aut.2 aut.Instituto Dante Pazzanese de CardiologiaSao PaoloBRA3 aut.Centro Cardiologico Monzino, IRCCS, University of MilanMilanITA4 aut.Cordis Clinical Research EuropeWaterlooBEL5 aut.13 aut.15 aut.Peter Munk Cardiac Centre, University Health NetworkTorontoCAN6 aut.Cleveland Clinic FoundationCleveland, OHUSA7 aut.Cardiovascular Institute and Fu Wai HospitalBeijingCHN8 aut.Mayo ClinicRochester, MNUSA9 aut.Heart Center of Chonnam National University HospitalGwangJuKOR10 aut.Centre Hospitalier UniversitaireLiègeBEL11 aut.Herz-Zentrum Bad KrozingenBad KrozingenDEU12 aut.Department of Cardiology, Cochin Hospital, Assistance Publique Hôpitaux de Paris and INSERM U 970, Paris Descartes UniversityParisFRA14 aut.Cardiovascular investigation unit Royal Adelaide HospitalAdelaideAUS16 aut.La Tour HospitalGenevaCHE17 aut.e-SELECT investigatorsINC962-9682011ENGINIST276593540005086166601400000© 2012 INIST-CNRS. All rights reserved.18 ref.12-0050786PAEuroInterventionFRAAims: Performing percutaneous coronary intervention (PCI) to multiple coronary lesions during the same procedure has potential economic and social advantages. However comprehensive outcome data of real world practice in a large population is limited. We aimed to compare short- and long-term outcomes between patients with multivessel coronary artery disease who either underwent single- or multivessel PCI within the e-SELECT registry. Methods and results: The e-SELECT registry combines data collected at 320 medical centres in 56 countries where patients received CYPHER Select® or CYPHER Select® Plus sirolimus-eluting stent (SES). Rates of myocardial infarction and major adverse cardiac event (MACE) (defined as any death, myocardial infarction or target lesion revascularisation) were compared between patients undergoing single-vessel versus multivessel PCI. A total of 15,147 patients who satisfied the inclusion criteria were included in the e-SELECT registry. Two thousand two hundred and seventy-eight (2,278) subjects (15%) underwent multivessel PCI and 12,869 (85%) had single-vessel PCI. The mean age was higher in the multivessel PCI group (63 vs. 62 years, p<0.001) and there was a higher prevalence of diabetes mellitus (32.4 vs. 30.0%, p=0.02). Lesions were more complex in the single-PCI group while pre- and post-dilatation were less common in the multivessel PCI group. Myocardial infarction within the first 30 days post PCI was more common in the multivessel PCI group (1.9 vs. 0.8%, p<0.001) and most of the infarctions were periprocedural (1.3 vs. 0.6%, p=0.001). Mortality and myocardial infarction at one-year were higher in the multivessel PCI group resulting in a significantly higher MACE (6.1 vs. 4.6%, p=0.005). Conclusions: Overall procedural and one year outcomes were excellent for both single- and multivessel procedures. However despite lower lesion complexity, performing multivessel PCI was associated with higher rates of periprocedural myocardial infarction and MACE when compared to single-vessel PCI in the e-SELECT registry.002B25002B26E002B12A03Cardiopathie coronaire01Coronary heart disease01Cardiopatía coronaria01Pronostic09Prognosis09Pronóstico09Homme10Human10Hombre10Malade11Patient11Enfermo11Angioplastie12Angioplasty12Angioplastia12Artère coronaire13Coronary artery13Arteria coronaria13Athérectomie14Atherectomy14Aterectomía14Stent à élution médicamenteuse15Drug eluting stent15Stent con liberación de fármaco15Voie percutanée16Percutaneous route16Vía percutánea16SirolimusNKFR17SirolimusNKFR17SirolimúsNKFR17Immunodépresseur18Immunosuppressive agent18Inmunodepresor18ComplexeNA19ComplexesNA19ComplejoNA19Lésion20Lesion20Lesión20Traitement instrumental78Instrumentation therapy78Tratamiento instrumental78Antibiotique79Antibiotic79Antibiótico79Anticancéreux80Antineoplastic agent80Anticanceroso80Lactone37Lactone37Lactona37Macrocycle38Macrocycle38Macrociclo38Macrolide39Macrolide39Macrólido39Pathologie de l'appareil circulatoire40Cardiovascular disease40Aparato circulatorio patología40Inhibiteur synthèse protéique41Protein synthesis inhibitor41Inhibidor síntesis proteica41Inhibiteur mTORINC86030OTOOTOPASCAL 12-0050786 INISTOutcomes in patients undergoing multivessel percutaneous coronary intervention using sirolimus-eluting stents: a report from the e-SELECT registryCUCULI (Florim); BANNING (Adrian P.); ABIZAID (Alexander); BARTORELLI (Antonio L.); BAUX (Ana C.); DZAVIK (Vladimir); ELLIS (Stepehen); GAO (Runlin); HOLMES (David); JEONG (Myung H.); LEGRAND (Victor); NEUMANN (Franz-Josef); NYAKERN (Maria); SPAULDING (Christian); STOLL (Hans-Peter); WORTHLEY (Stephen); URBAN (Philip)Oxford Heart Centre/Oxford/Royaume-Uni (1 aut., 2 aut.); Instituto Dante Pazzanese de Cardiologia/Sao Paolo/Brésil (3 aut.); Centro Cardiologico Monzino, IRCCS, University of Milan/Milan/Italie (4 aut.); Cordis Clinical Research Europe/Waterloo/Belgique (5 aut., 13 aut., 15 aut.); Peter Munk Cardiac Centre, University Health Network/Toronto/Canada (6 aut.); Cleveland Clinic Foundation/Cleveland, OH/Etats-Unis (7 aut.); Cardiovascular Institute and Fu Wai Hospital/Beijing/Chine (8 aut.); Mayo Clinic/Rochester, MN/Etats-Unis (9 aut.); Heart Center of Chonnam National University Hospital/GwangJu/Corée, République de (10 aut.); Centre Hospitalier Universitaire/Liège/Belgique (11 aut.); Herz-Zentrum Bad Krozingen/Bad Krozingen/Allemagne (12 aut.); Department of Cardiology, Cochin Hospital, Assistance Publique Hôpitaux de Paris and INSERM U 970, Paris Descartes University/Paris/France (14 aut.); Cardiovascular investigation unit Royal Adelaide Hospital/Adelaide/Australie (16 aut.); La Tour Hospital/Geneva/Suisse (17 aut.)
Publication en série; Niveau analytique
EuroIntervention; ISSN 1774-024X; France; Da. 2011; Vol. 7; No. 8; Pp. 962-968; Bibl. 18 ref.AnglaisAims: Performing percutaneous coronary intervention (PCI) to multiple coronary lesions during the same procedure has potential economic and social advantages. However comprehensive outcome data of real world practice in a large population is limited. We aimed to compare short- and long-term outcomes between patients with multivessel coronary artery disease who either underwent single- or multivessel PCI within the e-SELECT registry. Methods and results: The e-SELECT registry combines data collected at 320 medical centres in 56 countries where patients received CYPHER Select® or CYPHER Select® Plus sirolimus-eluting stent (SES). Rates of myocardial infarction and major adverse cardiac event (MACE) (defined as any death, myocardial infarction or target lesion revascularisation) were compared between patients undergoing single-vessel versus multivessel PCI. A total of 15,147 patients who satisfied the inclusion criteria were included in the e-SELECT registry. Two thousand two hundred and seventy-eight (2,278) subjects (15%) underwent multivessel PCI and 12,869 (85%) had single-vessel PCI. The mean age was higher in the multivessel PCI group (63 vs. 62 years, p<0.001) and there was a higher prevalence of diabetes mellitus (32.4 vs. 30.0%, p=0.02). Lesions were more complex in the single-PCI group while pre- and post-dilatation were less common in the multivessel PCI group. Myocardial infarction within the first 30 days post PCI was more common in the multivessel PCI group (1.9 vs. 0.8%, p<0.001) and most of the infarctions were periprocedural (1.3 vs. 0.6%, p=0.001). Mortality and myocardial infarction at one-year were higher in the multivessel PCI group resulting in a significantly higher MACE (6.1 vs. 4.6%, p=0.005). Conclusions: Overall procedural and one year outcomes were excellent for both single- and multivessel procedures. However despite lower lesion complexity, performing multivessel PCI was associated with higher rates of periprocedural myocardial infarction and MACE when compared to single-vessel PCI in the e-SELECT registry.002B25; 002B26E; 002B12A03Cardiopathie coronaire; Pronostic; Homme; Malade; Angioplastie; Artère coronaire; Athérectomie; Stent à élution médicamenteuse; Voie percutanée; Sirolimus; Immunodépresseur; Complexe; Lésion; Traitement instrumental; Antibiotique; AnticancéreuxLactone; Macrocycle; Macrolide; Pathologie de l'appareil circulatoire; Inhibiteur synthèse protéique; Inhibiteur mTORCoronary heart disease; Prognosis; Human; Patient; Angioplasty; Coronary artery; Atherectomy; Drug eluting stent; Percutaneous route; Sirolimus; Immunosuppressive agent; Complexes; Lesion; Instrumentation therapy; Antibiotic; Antineoplastic agentLactone; Macrocycle; Macrolide; Cardiovascular disease; Protein synthesis inhibitorCardiopatía coronaria; Pronóstico; Hombre; Enfermo; Angioplastia; Arteria coronaria; Aterectomía; Stent con liberación de fármaco; Vía percutánea; Sirolimús; Inmunodepresor; Complejo; Lesión; Tratamiento instrumental; Antibiótico; AnticancerosoINIST-27659.35400050861666014012-0050786 001B67 Modélisation géométrique du filetage à la fraiseGuillaume FromentinLaBoMaP, Arts et Métiers ParisTech71250 ClunyFRA1 aut.3 aut.4 aut.Anna Carla AraujoUniversité Fédérale de Rio de JaneiroBRA2 aut.Gérard PoulachonLaBoMaP, Arts et Métiers ParisTech71250 ClunyFRA1 aut.3 aut.4 aut.Yann PaireLaBoMaP, Arts et Métiers ParisTech71250 ClunyFRA1 aut.3 aut.4 aut.12-00513582011PASCAL 12-0051358 INISTPascal:12-0051358000D281296-2139Méc. ind.Mécanique & industriesChip formationCostsCutting edgeCutting forceCutting toolGeometrical modelGeometrical parameterMachiningMachining testMechanical clearanceMillingModelingOperating conditionsTappingFraisageUsinageCondition opératoireParamètre géométriqueForce coupeTaraudageCoûtOutil coupeJeu mécaniqueBord coupeFormation copeauModélisationModèle géométriqueEssai usinage.
Milling operation parameters, such as cutting and geometrical parameters, are quite difficult to define because of the variation of chip load during the process. Modeling the cutting forces is an efficient help to evaluate the effects of each parameter with the support of a few number of machining tests, and in order to define the available parameters domain. Nevertheless, the modeling needs improvement to be more precise and consequently be able to compare the effect of changing parameters as tool geometry. Thread milling is a machining technique which can produce both internal and external threads with using a machine tool, a helicoidal interpolation and a tool having the thread profile. This technique has several advantages compared to cut tapping and it is well adapted to the production of high cost parts. From a geometric point of view, thread milling is a quite complex 3D machining problem, due to the tool center trajectory, cutting mill geometry and cutting section. The present study deals with the geometric modeling of thread milling as a preliminary step for cutting force modeling. The developed approach is based on the complete analytical formulation of the mill geometry (cutting edge, rake face, clearance face). A simplified formulation for uncut chip thickness is established and the specificities of some parameters are examined correlating to the tool angle variation.
1296-2139Méc. ind.126Modélisation géométrique du filetage à la fraiseFROMENTIN (Guillaume)ARAUJO (Anna Carla)POULACHON (Gérard)PAIRE (Yann)LaBoMaP, Arts et Métiers ParisTech71250 ClunyFRA1 aut.3 aut.4 aut.Université Fédérale de Rio de JaneiroBRA2 aut.469-4772011FREengINIST2313540005088043500500000© 2012 INIST-CNRS. All rights reserved.9 ref.12-0051358PAMécanique & industriesFRAGeometrical modelisation of thread milling processMilling operation parameters, such as cutting and geometrical parameters, are quite difficult to define because of the variation of chip load during the process. Modeling the cutting forces is an efficient help to evaluate the effects of each parameter with the support of a few number of machining tests, and in order to define the available parameters domain. Nevertheless, the modeling needs improvement to be more precise and consequently be able to compare the effect of changing parameters as tool geometry. Thread milling is a machining technique which can produce both internal and external threads with using a machine tool, a helicoidal interpolation and a tool having the thread profile. This technique has several advantages compared to cut tapping and it is well adapted to the production of high cost parts. From a geometric point of view, thread milling is a quite complex 3D machining problem, due to the tool center trajectory, cutting mill geometry and cutting section. The present study deals with the geometric modeling of thread milling as a preliminary step for cutting force modeling. The developed approach is based on the complete analytical formulation of the mill geometry (cutting edge, rake face, clearance face). A simplified formulation for uncut chip thickness is established and the specificities of some parameters are examined correlating to the tool angle variation.001D12AFraisage06Milling06Fresado06Usinage07Machining07Mecanizado07Condition opératoire08Operating conditions08Condición operatoria08Paramètre géométrique09Geometrical parameter09Parámetro geométrico09Force coupe10Cutting force10Fuerza corte10Taraudage11Tapping11Aterrajado11Coût12Costs12Coste12Outil coupe13Cutting tool13Herramienta corte13Jeu mécanique14Mechanical clearance14Juego mecánico14Bord coupe15Cutting edge15Borde corte15Formation copeau16Chip formation16Formación viruta16Modélisation27Modeling27Modelización27Modèle géométrique28Geometrical model28Modelo geométrico28Essai usinage33Machining test33Ensayo maquinado33.INC82030OTOOTOPASCAL 12-0051358 INISTModélisation géométrique du filetage à la fraise(Geometrical modelisation of thread milling process)FROMENTIN (Guillaume); ARAUJO (Anna Carla); POULACHON (Gérard); PAIRE (Yann)LaBoMaP, Arts et Métiers ParisTech/71250 Cluny/France (1 aut., 3 aut., 4 aut.); Université Fédérale de Rio de Janeiro/Brésil (2 aut.)
Publication en série; Niveau analytique
Mécanique & industries; ISSN 1296-2139; France; Da. 2011; Vol. 12; No. 6; Pp. 469-477; Abs. anglais; Bibl. 9 ref.FrançaisMilling operation parameters, such as cutting and geometrical parameters, are quite difficult to define because of the variation of chip load during the process. Modeling the cutting forces is an efficient help to evaluate the effects of each parameter with the support of a few number of machining tests, and in order to define the available parameters domain. Nevertheless, the modeling needs improvement to be more precise and consequently be able to compare the effect of changing parameters as tool geometry. Thread milling is a machining technique which can produce both internal and external threads with using a machine tool, a helicoidal interpolation and a tool having the thread profile. This technique has several advantages compared to cut tapping and it is well adapted to the production of high cost parts. From a geometric point of view, thread milling is a quite complex 3D machining problem, due to the tool center trajectory, cutting mill geometry and cutting section. The present study deals with the geometric modeling of thread milling as a preliminary step for cutting force modeling. The developed approach is based on the complete analytical formulation of the mill geometry (cutting edge, rake face, clearance face). A simplified formulation for uncut chip thickness is established and the specificities of some parameters are examined correlating to the tool angle variation.001D12AFraisage; Usinage; Condition opératoire; Paramètre géométrique; Force coupe; Taraudage; Coût; Outil coupe; Jeu mécanique; Bord coupe; Formation copeau; Modélisation; Modèle géométrique; Essai usinage; .Milling; Machining; Operating conditions; Geometrical parameter; Cutting force; Tapping; Costs; Cutting tool; Mechanical clearance; Cutting edge; Chip formation; Modeling; Geometrical model; Machining testFresado; Mecanizado; Condición operatoria; Parámetro geométrico; Fuerza corte; Aterrajado; Coste; Herramienta corte; Juego mecánico; Borde corte; Formación viruta; Modelización; Modelo geométrico; Ensayo maquinadoINIST-231.35400050880435005012-0051358 001B68 Bayesian estimation of thermophysical parameters of thin metal films heated by fast laser pulsesPedro Henrique A. NobregaDepartment of Mechanical Engineering, Escola Politécnica/COPPE, Federal University of Rio de Janeiro, UFRJ, Cid. Universitária, Cx. Postal: 68503Rio de Janeiro, RJ, 21941-972BRA1 aut.2 aut.Helcio R. B. OrlandeDepartment of Mechanical Engineering, Escola Politécnica/COPPE, Federal University of Rio de Janeiro, UFRJ, Cid. Universitária, Cx. Postal: 68503Rio de Janeiro, RJ, 21941-972BRA1 aut.2 aut.Jean-Luc BattagliaI2M, UMR CNRS 8508, Université de Bordeaux 1, 351 Cours de la libération33405 TalenceFRA3 aut.12-00528482011PASCAL 12-0052848 INISTPascal:12-0052848000D270735-1933Int. commun. heat mass transf.International communications in heat and mass transferElectron gasElectron temperatureElectron-phonon interactionsInverse problemsLaser pulseLaser-radiation heatingMCMC algorithmMeasurement errorsMetallic thin filmsSpecific heatThermal conductivityImpulsion laserTempérature électronConductivité thermiqueErreur mesureProblème inverseInteraction électron phononChaleur massiqueChauffage laserAlgorithme MCMCCouche mince métalliqueGaz électron
In this paper, we apply the Markov Chain Monte Carlo method, within the Bayesian framework, for the estimation of parameters appearing in the heat conduction model in metals under the condition of thermal non-equilibrium between electrons and lattice. Such non-equilibrium can be experimentally observed in a time scale of up to few picoseconds, during the heating of thin metal films with laser pulses of the order of femtoseconds. Simulated measurements containing random errors are used for the solution of the inverse problem. Results are presented for the simultaneous estimation of the electron-phonon coupling factor, the thermal conductivity and the heat capacity of the electron gas.
0735-1933IHMTDLInt. commun. heat mass transf.389Bayesian estimation of thermophysical parameters of thin metal films heated by fast laser pulsesNOBREGA (Pedro Henrique A.)ORLANDE (Helcio R. B.)BATTAGLIA (Jean-Luc)Department of Mechanical Engineering, Escola Politécnica/COPPE, Federal University of Rio de Janeiro, UFRJ, Cid. Universitária, Cx. Postal: 68503Rio de Janeiro, RJ, 21941-972BRA1 aut.2 aut.I2M, UMR CNRS 8508, Université de Bordeaux 1, 351 Cours de la libération33405 TalenceFRA3 aut.1172-11772011ENGINIST164333540005072863400200000© 2012 INIST-CNRS. All rights reserved.27 ref.12-0052848PAInternational communications in heat and mass transferGBRIn this paper, we apply the Markov Chain Monte Carlo method, within the Bayesian framework, for the estimation of parameters appearing in the heat conduction model in metals under the condition of thermal non-equilibrium between electrons and lattice. Such non-equilibrium can be experimentally observed in a time scale of up to few picoseconds, during the heating of thin metal films with laser pulses of the order of femtoseconds. Simulated measurements containing random errors are used for the solution of the inverse problem. Results are presented for the simultaneous estimation of the electron-phonon coupling factor, the thermal conductivity and the heat capacity of the electron gas.001B60H60DImpulsion laser02Laser pulse02Impulsión láser02Température électron03Electron temperature03Conductivité thermique04Thermal conductivity04Erreur mesure06Measurement errors06Problème inverse07Inverse problems07Interaction électron phonon08Electron-phonon interactions08Chaleur massique10Specific heat10Chauffage laser11Laser-radiation heating11Algorithme MCMC12MCMC algorithm12Algoritmo MCMC12Couche mince métallique15Metallic thin films15Gaz électron16Electron gas16030PASCAL 12-0052848 INISTBayesian estimation of thermophysical parameters of thin metal films heated by fast laser pulsesNOBREGA (Pedro Henrique A.); ORLANDE (Helcio R. B.); BATTAGLIA (Jean-Luc)Department of Mechanical Engineering, Escola Politécnica/COPPE, Federal University of Rio de Janeiro, UFRJ, Cid. Universitária, Cx. Postal: 68503/Rio de Janeiro, RJ, 21941-972/Brésil (1 aut., 2 aut.); I2M, UMR CNRS 8508, Université de Bordeaux 1, 351 Cours de la libération/33405 Talence/France (3 aut.)
Publication en série; Niveau analytique
International communications in heat and mass transfer; ISSN 0735-1933; Coden IHMTDL; Royaume-Uni; Da. 2011; Vol. 38; No. 9; Pp. 1172-1177; Bibl. 27 ref.AnglaisIn this paper, we apply the Markov Chain Monte Carlo method, within the Bayesian framework, for the estimation of parameters appearing in the heat conduction model in metals under the condition of thermal non-equilibrium between electrons and lattice. Such non-equilibrium can be experimentally observed in a time scale of up to few picoseconds, during the heating of thin metal films with laser pulses of the order of femtoseconds. Simulated measurements containing random errors are used for the solution of the inverse problem. Results are presented for the simultaneous estimation of the electron-phonon coupling factor, the thermal conductivity and the heat capacity of the electron gas.001B60H60DImpulsion laser; Température électron; Conductivité thermique; Erreur mesure; Problème inverse; Interaction électron phonon; Chaleur massique; Chauffage laser; Algorithme MCMC; Couche mince métallique; Gaz électronLaser pulse; Electron temperature; Thermal conductivity; Measurement errors; Inverse problems; Electron-phonon interactions; Specific heat; Laser-radiation heating; MCMC algorithm; Metallic thin films; Electron gasImpulsión láser; Algoritmo MCMCINIST-16433.35400050728634002012-0052848 001B69 Development of a slow-wave MEMS phase shifter on CMOS technology for millimeter wave frequenciesGustavo RehderLaboratory of Microelectronics, University of São Paulo, CP 61548CEP 05424-970, São Paulo, SPBRA1 aut.Trang VoIMEP-LAHC - Grenoble University-CNRS 5130, 3 Parvis Louis Néel, BP25738016, GrenobleFRA2 aut.3 aut.Philippe FerrariIMEP-LAHC - Grenoble University-CNRS 5130, 3 Parvis Louis Néel, BP25738016, GrenobleFRA2 aut.3 aut.12-00540452012PASCAL 12-0054045 INISTPascal:12-0054045000D260167-9317Microelectron. eng.Microelectronic engineeringActuation voltageCharacteristic impedanceComplementary MOS technologyEngravingFigure of meritMaskless lithographyMicroelectromechanical deviceMicroelectronic fabricationMillimetric waveMotion controlPhase shifterPhase velocityQ factorSlow wave structureTransmission lineTravelling wave tubeTunable circuitWave absorptionWave transmissionStructure onde lenteDispositif microélectromécaniqueDéphaseurTechnologie MOS complémentaireOnde millimétriqueLithographie sans masqueGravureCircuit accordableTransmission ondeAbsorption ondeLigne transmissionCommande mouvementTension de commandeImpédance caractéristiqueVitesse phaseFacteur qualitéFacteur mériteTube onde progressiveFabrication microélectronique8540H
We propose a slow-wave MEMS phase shifter that can be fabricated using the CMOS back-end and an additional maskless post-process etch. The tunable phase shifter concept is formed by a conventional slow-wave transmission line. The metallic ribbons that form the patterned floating shield of this type of structure are released to allow motion when a control voltage is applied, which changes the characteristic impedance and the phase velocity. For this device a quality factor greater than 40 can be maintained, resulting in a figure of merit on the order of 0.7 dB/360° and a total area smaller than 0.14 mm2 for a 60-GHz working frequency.
0167-9317MIENEFMicroelectron. eng.90FebDevelopment of a slow-wave MEMS phase shifter on CMOS technology for millimeter wave frequenciesMicro&Nano 2010: 4th International Conference on Micro-Nanoelectronics, Nanotechnologies & MEMs December 12-15, 2010, NCSR Demokritos, Athens, GreeceREHDER (Gustavo)VO (Trang)FERRARI (Philippe)NASSIOPOULOU (Androula G.)ed.Laboratory of Microelectronics, University of São Paulo, CP 61548CEP 05424-970, São Paulo, SPBRA1 aut.IMEP-LAHC - Grenoble University-CNRS 5130, 3 Parvis Louis Néel, BP25738016, GrenobleFRA2 aut.3 aut.NCSR Demokritos, Institute of Microelectronics (IMEL)GRC1 aut.19-222012ENGINIST200033540005060628500500000© 2012 INIST-CNRS. All rights reserved.11 ref.12-0054045PCAMicroelectronic engineeringNLDWe propose a slow-wave MEMS phase shifter that can be fabricated using the CMOS back-end and an additional maskless post-process etch. The tunable phase shifter concept is formed by a conventional slow-wave transmission line. The metallic ribbons that form the patterned floating shield of this type of structure are released to allow motion when a control voltage is applied, which changes the characteristic impedance and the phase velocity. For this device a quality factor greater than 40 can be maintained, resulting in a figure of merit on the order of 0.7 dB/360° and a total area smaller than 0.14 mm2 for a 60-GHz working frequency.001D03F21001D03G02A5001D03F06A001D03F17Structure onde lente01Slow wave structure01Estructura onda lenta01Dispositif microélectromécanique02Microelectromechanical device02Dispositivo microelectromecánico02Déphaseur03Phase shifter03Desfasador03Technologie MOS complémentaire04Complementary MOS technology04Tecnología MOS complementario04Onde millimétrique05Millimetric wave05Onda milimétrica05Lithographie sans masque06Maskless lithography06Litografía sin máscara06Gravure07Engraving07Grabado07Circuit accordable08Tunable circuit08Circuito acordable08Transmission onde09Wave transmission09Transmisión onda09Absorption onde10Wave absorption10Absorción onda10Ligne transmission11Transmission line11Línea transmisión11Commande mouvement12Motion control12Control movimiento12Tension de commande13Actuation voltage13Voltaje de control13Impédance caractéristique14Characteristic impedance14Impedancia característica14Vitesse phase15Phase velocity15Velocidad fase15Facteur qualité16Q factor16Factor calidad16Facteur mérite17Figure of merit17Factor mérito17Tube onde progressive46Travelling wave tube46Tubo onda progresiva46Fabrication microélectronique47Microelectronic fabrication47Fabricación microeléctrica478540HINC56Hyperfréquence18Microwave18Hiperfrecuencia18037OTOOTOMicro&Nano 2010 International Conference on Micro-Nanoelectronics, Nanotechnologies & MEMs4Athens GRC2010-12-12PASCAL 12-0054045 INISTDevelopment of a slow-wave MEMS phase shifter on CMOS technology for millimeter wave frequenciesREHDER (Gustavo); VO (Trang); FERRARI (Philippe); NASSIOPOULOU (Androula G.)Laboratory of Microelectronics, University of São Paulo, CP 61548/CEP 05424-970, São Paulo, SP/Brésil (1 aut.); IMEP-LAHC - Grenoble University-CNRS 5130, 3 Parvis Louis Néel, BP257/38016, Grenoble/France (2 aut., 3 aut.); NCSR Demokritos, Institute of Microelectronics (IMEL)/Grèce (1 aut.)
Publication en série; Congrès; Niveau analytique
Microelectronic engineering; ISSN 0167-9317; Coden MIENEF; Pays-Bas; Da. 2012; Vol. 90; No. Feb; Pp. 19-22; Bibl. 11 ref.AnglaisWe propose a slow-wave MEMS phase shifter that can be fabricated using the CMOS back-end and an additional maskless post-process etch. The tunable phase shifter concept is formed by a conventional slow-wave transmission line. The metallic ribbons that form the patterned floating shield of this type of structure are released to allow motion when a control voltage is applied, which changes the characteristic impedance and the phase velocity. For this device a quality factor greater than 40 can be maintained, resulting in a figure of merit on the order of 0.7 dB/360° and a total area smaller than 0.14 mm2 for a 60-GHz working frequency.001D03F21; 001D03G02A5; 001D03F06A; 001D03F17Structure onde lente; Dispositif microélectromécanique; Déphaseur; Technologie MOS complémentaire; Onde millimétrique; Lithographie sans masque; Gravure; Circuit accordable; Transmission onde; Absorption onde; Ligne transmission; Commande mouvement; Tension de commande; Impédance caractéristique; Vitesse phase; Facteur qualité; Facteur mérite; Tube onde progressive; Fabrication microélectronique; 8540HHyperfréquenceSlow wave structure; Microelectromechanical device; Phase shifter; Complementary MOS technology; Millimetric wave; Maskless lithography; Engraving; Tunable circuit; Wave transmission; Wave absorption; Transmission line; Motion control; Actuation voltage; Characteristic impedance; Phase velocity; Q factor; Figure of merit; Travelling wave tube; Microelectronic fabricationMicrowaveEstructura onda lenta; Dispositivo microelectromecánico; Desfasador; Tecnología MOS complementario; Onda milimétrica; Litografía sin máscara; Grabado; Circuito acordable; Transmisión onda; Absorción onda; Línea transmisión; Control movimiento; Voltaje de control; Impedancia característica; Velocidad fase; Factor calidad; Factor mérito; Tubo onda progresiva; Fabricación microeléctricaINIST-20003.35400050606285005012-0054045 001B70 Du Nordeste au Semi-aride brésilien: renouvellement du modèle de développement autour de l'agroécologieMarc PirauxCirad UMR TETIS Belem-PABRA1 aut.Université Fédérale do Para Núcleo de Ciências Agrárias e Desenvolvimento Rural Rua Augusto Correa, s/n Guamà 66 075 110Belém - PABRA1 aut.Jean-Philippe TonneauCirad UMR TETIS Campus international de Baillarguet TA C-91MontpellierFRA2 aut.Paulo Cesar DinizUniversidade Federal Rural de Pernambuco - UFRPE Departamento de Educaçâo Rua Dom Manoel de Medeiros, s/n Dois Irmâos52171-900 Recife-PEBRA3 aut.12-00560122011PASCAL 12-0056012 INISTPascal:12-0056012000D251147-7806Sécheresse : (Montrouge)Sécheresse : (Montrouge)AgroecologyArid regionBrazilFailureImplementationLatin AmericaModelingModernizationModificationNational scopeNortheastProblemPublic policyRenewalSemi arid zoneSystemTerritoryarid environmentcarboncharacterizationdroughtevolutionmodelsprogramsprojectsrural areassulfursustainable developmenttransformationsDéveloppement durableAmérique LatineMilieu arideRenouvellementModèleAgroécologieModélisationProblèmeProjetModernisationZone ruraleEchecModificationSystèmePolitique publiqueImplémentationCarboneEvolutionTransformationCaractérisationSoufreTerritoireProgrammeEchelon nationalSécheresseDéveloppement agricoleRévolution verteZone arideBrésilNord estZone semi aride
Le Semi-aride brésilien est considéré depuis longtemps comme la « région-problème » du Brésil. En retard de développement, elle a toujours cumulé des handicaps importants. Dans le domaine du développement agricole, le projet de modernisation des espaces ruraux, calqué sur la révolution verte, continue à orienter fortement les actions publiques, malgré les échecs auquel il a conduit. Toutefois, un projet alternatif, fondé sur la « convivência » avec le Semi-aride (littéralement « vivre avec ») et l'agroécologie a émergé depuis une vingtaine d'années. Ce projet, porté par l'ASA (Articulation du Semi-aride), a profondément modifié les systèmes productifs, les rapports de force et les politiques publiques mises en oeuvre dans la région. C'est cette évolution que nous décrivons, en mettant l'accent sur les conditions qui ont permis ces transformations et sur une caractérisation de quelques politiques publiques coconstruites entre la société civile et l'Etat. Nous montrons ainsi que le Semi-aride s'est transformé aujourd'hui en un véritable territoire d'action publique et n'est plus seulement un réceptacle de programmes décidés à l'échelle nationale.
1147-7806Sécheresse : (Montrouge)224Du Nordeste au Semi-aride brésilien: renouvellement du modèle de développement autour de l'agroécologieZones arides, développement durable ? Exemples en Amérique latinePIRAUX (Marc)TONNEAU (Jean-Philippe)CESAR DINIZ (Paulo)PONCET (Yveline)ed.Cirad UMR TETIS Belem-PABRA1 aut.Université Fédérale do Para Núcleo de Ciências Agrárias e Desenvolvimento Rural Rua Augusto Correa, s/n Guamà 66 075 110Belém - PABRA1 aut.Cirad UMR TETIS Campus international de Baillarguet TA C-91MontpellierFRA2 aut.Universidade Federal Rural de Pernambuco - UFRPE Departamento de Educaçâo Rua Dom Manoel de Medeiros, s/n Dois Irmâos52171-900 Recife-PEBRA3 aut.218-2242011FREengINIST223903540005060389400100000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0056012PASécheresse : (Montrouge)FRAFrom the Brazilian northeast to the Semi-arid: Renewing the developmental model around agro-ecologyArid Zones, Sustainable Development Exemples in Latin AmericaLe Semi-aride brésilien est considéré depuis longtemps comme la « région-problème » du Brésil. En retard de développement, elle a toujours cumulé des handicaps importants. Dans le domaine du développement agricole, le projet de modernisation des espaces ruraux, calqué sur la révolution verte, continue à orienter fortement les actions publiques, malgré les échecs auquel il a conduit. Toutefois, un projet alternatif, fondé sur la « convivência » avec le Semi-aride (littéralement « vivre avec ») et l'agroécologie a émergé depuis une vingtaine d'années. Ce projet, porté par l'ASA (Articulation du Semi-aride), a profondément modifié les systèmes productifs, les rapports de force et les politiques publiques mises en oeuvre dans la région. C'est cette évolution que nous décrivons, en mettant l'accent sur les conditions qui ont permis ces transformations et sur une caractérisation de quelques politiques publiques coconstruites entre la société civile et l'Etat. Nous montrons ainsi que le Semi-aride s'est transformé aujourd'hui en un véritable territoire d'action publique et n'est plus seulement un réceptacle de programmes décidés à l'échelle nationale.002A32001E01P03226C03Développement durable01sustainable development01Amérique Latine02Latin America02America latina02Milieu aride03arid environment03Medio árido03Renouvellement04Renewal04Renovación04Modèle05models05Modelo05Agroécologie06Agroecology06Agroecología06Modélisation07Modeling07Modelización07Problème08Problem08Problema08Projet09projects09Proyecto09Modernisation10Modernization10Modernización10Zone rurale11rural areas11Zona rural11Echec12Failure12Fracaso12Modification13Modification13Modificación13Système14System14Sistema14Politique publique15Public policy15Politica pública15Implémentation16Implementation16Implementación16Carbone17carbon17Carbono17Evolution18evolution18Transformation19transformations19Transformación19Caractérisation20characterization20Soufre21sulfur21Azufre21Territoire22Territory22Territorio22Programme23programs23Programa23Echelon national24National scope24Escalón nacional24Sécheresse25drought25Sequedad25Développement agricoleINC52Révolution verteINC53Zone aride61Arid region61Zona árida61BrésilNG62BrazilNG62BrasilNG62Nord est63Northeast63Nordeste63Zone semi aride64Semi arid zone64Zona semiárida64EcologieEcologyEcologíaAmérique du Sud564South America564America del sur564037OTOOTOPASCAL 12-0056012 INISTDu Nordeste au Semi-aride brésilien: renouvellement du modèle de développement autour de l'agroécologie(From the Brazilian northeast to the Semi-arid: Renewing the developmental model around agro-ecology)PIRAUX (Marc); TONNEAU (Jean-Philippe); CESAR DINIZ (Paulo); PONCET (Yveline)Cirad UMR TETIS Belem-PA/Brésil (1 aut.); Université Fédérale do Para Núcleo de Ciências Agrárias e Desenvolvimento Rural Rua Augusto Correa, s/n Guamà 66 075 110/Belém - PA/Brésil (1 aut.); Cirad UMR TETIS Campus international de Baillarguet TA C-91/Montpellier/France (2 aut.); Universidade Federal Rural de Pernambuco - UFRPE Departamento de Educaçâo Rua Dom Manoel de Medeiros, s/n Dois Irmâos/52171-900 Recife-PE/Brésil (3 aut.)
Publication en série; Niveau analytique
Sécheresse : (Montrouge); ISSN 1147-7806; France; Da. 2011; Vol. 22; No. 4; Pp. 218-224; Abs. anglais; Bibl. 3/4 p.FrançaisLe Semi-aride brésilien est considéré depuis longtemps comme la « région-problème » du Brésil. En retard de développement, elle a toujours cumulé des handicaps importants. Dans le domaine du développement agricole, le projet de modernisation des espaces ruraux, calqué sur la révolution verte, continue à orienter fortement les actions publiques, malgré les échecs auquel il a conduit. Toutefois, un projet alternatif, fondé sur la « convivência » avec le Semi-aride (littéralement « vivre avec ») et l'agroécologie a émergé depuis une vingtaine d'années. Ce projet, porté par l'ASA (Articulation du Semi-aride), a profondément modifié les systèmes productifs, les rapports de force et les politiques publiques mises en oeuvre dans la région. C'est cette évolution que nous décrivons, en mettant l'accent sur les conditions qui ont permis ces transformations et sur une caractérisation de quelques politiques publiques coconstruites entre la société civile et l'Etat. Nous montrons ainsi que le Semi-aride s'est transformé aujourd'hui en un véritable territoire d'action publique et n'est plus seulement un réceptacle de programmes décidés à l'échelle nationale.002A32; 001E01P03; 226C03Développement durable; Amérique Latine; Milieu aride; Renouvellement; Modèle; Agroécologie; Modélisation; Problème; Projet; Modernisation; Zone rurale; Echec; Modification; Système; Politique publique; Implémentation; Carbone; Evolution; Transformation; Caractérisation; Soufre; Territoire; Programme; Echelon national; Sécheresse; Développement agricole; Révolution verte; Zone aride; Brésil; Nord est; Zone semi arideEcologie; Amérique du Sudsustainable development; Latin America; arid environment; Renewal; models; Agroecology; Modeling; Problem; projects; Modernization; rural areas; Failure; Modification; System; Public policy; Implementation; carbon; evolution; transformations; characterization; sulfur; Territory; programs; National scope; drought; Arid region; Brazil; Northeast; Semi arid zoneEcology; South AmericaAmerica latina; Medio árido; Renovación; Modelo; Agroecología; Modelización; Problema; Proyecto; Modernización; Zona rural; Fracaso; Modificación; Sistema; Politica pública; Implementación; Carbono; Transformación; Azufre; Territorio; Programa; Escalón nacional; Sequedad; Zona árida; Brasil; Nordeste; Zona semiáridaINIST-22390.35400050603894001012-0056012 001B71 Les parures des sépultures préhistoriques de l'abri-sous-roche d'Enoque (Parc National Serra das Confusôes, Piaui, Brésil)Martine FaureFaculté d'Anthropologie, Université Lumière - Lyon 2 5 avenue Pierre Mendès-France69676 BronFRA1 aut.UMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre69 622 VilleurbanneFRA1 aut.Fundaçâo Museu do Homem Americano, São Raimundo NonatoPiauiBRA1 aut.Claude GuerinUMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre69 622 VilleurbanneFRA2 aut.Fundaçâo Museu do Homem Americano, São Raimundo NonatoPiauiBRA2 aut.Maria De Fatima Da LuzUniversidade Federal do Pernambuco, Recife Fundaçâo Museu do Homem Americano, Centro cultural Sérgio Motta Bairro Campestre, São Raimundo Nonato, PICEP: 64770-000BRA3 aut.12-00574332011FRANCIS 12-0057433 INISTFrancis:12-0057433000E120761-3032Anthropozoologica : (Paris)Anthropozoologica : (Paris)Bone industryBrazilBurialGrave goodsHoloceneOrnamentPendantRockshelterBrésilSépultureHolocèneParureMobilier funéraireIndustrie osseusePendeloqueAbri sous rocheEnoque
La Toca d'Enoque de la Serra das Confusôes (SE du Piauí) a livré un ensemble sépulcral remarquablement bien conservé daté entre 7570 et 6660 ans BP, comprenant dix-sept individus pour la plupart de jeunes enfants dont les corps ont été inhumés sur un grand bloc gravé. Les restes humains sont associés à un matériel funéraire abondant et varié notamment de très nombreux éléments de parure en matière dure animale: des colliers en dents perforées de félins (Panthera onca, Felis concolor, Felis pardalis) et de petits Canidés (près de 600 canines de Cerdocyon thous) ; 145 pendeloques réalisées dans des métatarsiens de petits Cervidés (Mazama gouazoubira), et quelques autres en radius de gros oiseaux, en plaque de tortue et en coquillages ; mais aussi des incrustations de plaques de tatous sur un support argileux ainsi que des colliers en perles végétales ; de gros gastéropodes Megalobulimus ; des restes animaux non travaillés (fragments antérieurs de mandibules de pécaris Dicotyles tajacu, mandibules de Coendu prehensilis, bois et métapodes adultes et juvéniles de Mazama) et de gros blocs d'ocre. L'abondance et la variété du matériel funéraire, associées à la réutilisation d'un même emplacement pour des inhumations multiples, en font un site exceptionnel probablement au cœur de la vie sociale et spirituelle de cette population de chasseurs-collecteurs vivant dans le Nordeste brésilien, il y a plus de 6600 ans.
0761-3032Anthropozoologica : (Paris)461Les parures des sépultures préhistoriques de l'abri-sous-roche d'Enoque (Parc National Serra das Confusôes, Piaui, Brésil)FAURE (Martine)GUERIN (Claude)DE FATIMA DA LUZ (Maria)Faculté d'Anthropologie, Université Lumière - Lyon 2 5 avenue Pierre Mendès-France69676 BronFRA1 aut.UMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre69 622 VilleurbanneFRA1 aut.Fundaçâo Museu do Homem Americano, São Raimundo NonatoPiauiBRA1 aut.UMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre69 622 VilleurbanneFRA2 aut.Fundaçâo Museu do Homem Americano, São Raimundo NonatoPiauiBRA2 aut.Universidade Federal do Pernambuco, Recife Fundaçâo Museu do Homem Americano, Centro cultural Sérgio Motta Bairro Campestre, São Raimundo Nonato, PICEP: 64770-000BRA3 aut.27-452011FREengINIST257363540001904114500200000© 2012 INIST-CNRS. All rights reserved.1 p.3/412-0057433PAAnthropozoologica : (Paris)FRAAdornments in the prehistoric burials of the Enoque rock-shelter (Serra das Confusões National Park, Piaui, Brazil)La Toca d'Enoque de la Serra das Confusôes (SE du Piauí) a livré un ensemble sépulcral remarquablement bien conservé daté entre 7570 et 6660 ans BP, comprenant dix-sept individus pour la plupart de jeunes enfants dont les corps ont été inhumés sur un grand bloc gravé. Les restes humains sont associés à un matériel funéraire abondant et varié notamment de très nombreux éléments de parure en matière dure animale: des colliers en dents perforées de félins (Panthera onca, Felis concolor, Felis pardalis) et de petits Canidés (près de 600 canines de Cerdocyon thous) ; 145 pendeloques réalisées dans des métatarsiens de petits Cervidés (Mazama gouazoubira), et quelques autres en radius de gros oiseaux, en plaque de tortue et en coquillages ; mais aussi des incrustations de plaques de tatous sur un support argileux ainsi que des colliers en perles végétales ; de gros gastéropodes Megalobulimus ; des restes animaux non travaillés (fragments antérieurs de mandibules de pécaris Dicotyles tajacu, mandibules de Coendu prehensilis, bois et métapodes adultes et juvéniles de Mazama) et de gros blocs d'ocre. L'abondance et la variété du matériel funéraire, associées à la réutilisation d'un même emplacement pour des inhumations multiples, en font un site exceptionnel probablement au cœur de la vie sociale et spirituelle de cette population de chasseurs-collecteurs vivant dans le Nordeste brésilien, il y a plus de 6600 ans.52537II525164VI525BrésilNG05BrazilNG05Sépulture56314Burial56314HolocèneNI15HoloceneNI15Parure19Ornament19Mobilier funéraire20Grave goods20Industrie osseuse21Bone industry21Pendeloque22Pendant22Abri sous roche23Rockshelter23EnoqueINC31AmériqueNGAmericaNGAmérique du SudNG10South AmericaNG10037FRANCIS 12-0057433 INISTLes parures des sépultures préhistoriques de l'abri-sous-roche d'Enoque (Parc National Serra das Confusôes, Piaui, Brésil)(Adornments in the prehistoric burials of the Enoque rock-shelter (Serra das Confusões National Park, Piaui, Brazil))FAURE (Martine); GUERIN (Claude); DE FATIMA DA LUZ (Maria)Faculté d'Anthropologie, Université Lumière - Lyon 2 5 avenue Pierre Mendès-France/69676 Bron/France (1 aut.); UMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre/69 622 Villeurbanne/France (1 aut.); Fundaçâo Museu do Homem Americano, São Raimundo Nonato/Piaui/Brésil (1 aut.); UMR-CNRS 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement Université Claude Bernard-Lyon I / ENS Lyon 27-43 boulevard du 11 novembre/69 622 Villeurbanne/France (2 aut.); Fundaçâo Museu do Homem Americano, São Raimundo Nonato/Piaui/Brésil (2 aut.); Universidade Federal do Pernambuco, Recife Fundaçâo Museu do Homem Americano, Centro cultural Sérgio Motta Bairro Campestre, São Raimundo Nonato, PI/CEP: 64770-000/Brésil (3 aut.)
Publication en série; Niveau analytique
Anthropozoologica : (Paris); ISSN 0761-3032; France; Da. 2011; Vol. 46; No. 1; Pp. 27-45; Abs. anglais; Bibl. 1 p.3/4FrançaisLa Toca d'Enoque de la Serra das Confusôes (SE du Piauí) a livré un ensemble sépulcral remarquablement bien conservé daté entre 7570 et 6660 ans BP, comprenant dix-sept individus pour la plupart de jeunes enfants dont les corps ont été inhumés sur un grand bloc gravé. Les restes humains sont associés à un matériel funéraire abondant et varié notamment de très nombreux éléments de parure en matière dure animale: des colliers en dents perforées de félins (Panthera onca, Felis concolor, Felis pardalis) et de petits Canidés (près de 600 canines de Cerdocyon thous) ; 145 pendeloques réalisées dans des métatarsiens de petits Cervidés (Mazama gouazoubira), et quelques autres en radius de gros oiseaux, en plaque de tortue et en coquillages ; mais aussi des incrustations de plaques de tatous sur un support argileux ainsi que des colliers en perles végétales ; de gros gastéropodes Megalobulimus ; des restes animaux non travaillés (fragments antérieurs de mandibules de pécaris Dicotyles tajacu, mandibules de Coendu prehensilis, bois et métapodes adultes et juvéniles de Mazama) et de gros blocs d'ocre. L'abondance et la variété du matériel funéraire, associées à la réutilisation d'un même emplacement pour des inhumations multiples, en font un site exceptionnel probablement au cœur de la vie sociale et spirituelle de cette population de chasseurs-collecteurs vivant dans le Nordeste brésilien, il y a plus de 6600 ans.52537; 525164; 525Brésil; Sépulture; Holocène; Parure; Mobilier funéraire; Industrie osseuse; Pendeloque; Abri sous roche; EnoqueAmérique; Amérique du SudBrazil; Burial; Holocene; Ornament; Grave goods; Bone industry; Pendant; RockshelterAmerica; South AmericaINIST-25736.35400019041145002012-0057433 001B72 A 65-nm CMOS Fully Integrated Transceiver Module for 60-GHz Wireless HD ApplicationsAlexandre SiligarisSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Olivier RichardSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Baudouin MartineauSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Christopher MounetSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Fabrice ChaixSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Romain FerragutSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Cedric DehosSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Jérôme LanteriUniversity of Nice-Sophia Antipolis, Valbonne 06560, France, and also with CEA-LETIGrenoble 38054FRA8 aut.Laurent DussoptSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Silas D. YamamotoDivision Concepção de Sistemas de Hardware (DCSH), Center for Information Technology "Renato Archer" (CTICampinas, SPBRA10 aut.STMicroelectronicsCrollesFRA10 aut.Romain PilardSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Pierre BussonSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Andreia CathelinSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Didier BelotSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.Pierre VincentSTMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.12-00588752011PASCAL 12-0058875 INISTPascal:12-0058875000D240018-9200IEEE j. solid-state circuitsIEEE journal of solid-state circuitsBase bandCMOS integrated circuitsCeramic materialsComplementary MOS technologyCost loweringDieHigh temperatureLow noise amplifierMillimetric waveOrthogonal frequency division multiplexingPhase locked loopPower amplifierPower electronicsQuadrature amplitude modulationSiliconTransceiverCircuit intégré CMOSEmetteur récepteurTechnologie MOS complémentaireMatrice formageDiminution coûtModulation amplitude en quadratureMultiplexage fréquence orthogonalBoucle verrouillage phaseBande baseHaute températureAmplificateur faible bruitOnde millimétriqueAmplificateur puissanceSiliciumCéramiqueElectronique puissance
A fully integrated WirelessHD compatible 60-GHz transceiver module in 65-nm CMOS process is presented, covering the four standard channels. The silicon die is flip-chipped on top of a low-cost HTCC module which also includes an external 65-nm CMOS PA and large beamwidth antennas targeting industrial manufacturability. The module achieves a 16QAM OFDM modulation wireless link with 3.8 Gbps over 1 m. The transceiver consumption is 454 mW in RX mode (including PLL) and 1090 mW in TX mode (including PLL and external PA).
0018-9200IJSCBCIEEE j. solid-state circuits4612A 65-nm CMOS Fully Integrated Transceiver Module for 60-GHz Wireless HD Applications2011 IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCESILIGARIS (Alexandre)RICHARD (Olivier)MARTINEAU (Baudouin)MOUNET (Christopher)CHAIX (Fabrice)FERRAGUT (Romain)DEHOS (Cedric)LANTERI (Jérôme)DUSSOPT (Laurent)YAMAMOTO (Silas D.)PILARD (Romain)BUSSON (Pierre)CATHELIN (Andreia)BELOT (Didier)VINCENT (Pierre)SAVOJ (Jafar)ed.MANOLI (Yiannos)ed.DARABI (Hooman)ed.PALASKAS (Yorgos)ed.MOYAL (Michael)ed.STMicroelectronicsCrollesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.7 aut.9 aut.11 aut.12 aut.13 aut.14 aut.15 aut.University of Nice-Sophia Antipolis, Valbonne 06560, France, and also with CEA-LETIGrenoble 38054FRA8 aut.Division Concepção de Sistemas de Hardware (DCSH), Center for Information Technology "Renato Archer" (CTICampinas, SPBRA10 aut.STMicroelectronicsCrollesFRA10 aut.Xilinc, Inc.San Jose, CA 95124USA1 aut.University of Freiburg-IMTEK79110 FreiburgDEU2 aut.Broadcom Corp.Irvine, CA 92617USA3 aut.Intel LabsHillsboro, OR 97124USA4 aut.Intel Corp.HaifaISR5 aut.Institute of Electrical and Electronics Engineers (IEEE)New YorkUSAorg-cong.3005-30172011ENGINIST222L3540005073991202200000© 2012 INIST-CNRS. All rights reserved.33 ref.12-0058875PCAIEEE journal of solid-state circuitsUSAA fully integrated WirelessHD compatible 60-GHz transceiver module in 65-nm CMOS process is presented, covering the four standard channels. The silicon die is flip-chipped on top of a low-cost HTCC module which also includes an external 65-nm CMOS PA and large beamwidth antennas targeting industrial manufacturability. The module achieves a 16QAM OFDM modulation wireless link with 3.8 Gbps over 1 m. The transceiver consumption is 454 mW in RX mode (including PLL) and 1090 mW in TX mode (including PLL and external PA).001D03F06A001D03G02A5001D03G02A2001D03DCircuit intégré CMOS01CMOS integrated circuits01Emetteur récepteur02Transceiver02Emisor receptor02Technologie MOS complémentaire03Complementary MOS technology03Tecnología MOS complementario03Matrice formage04Die04Matriz formadora04Diminution coût05Cost lowering05Reducción costes05Modulation amplitude en quadrature06Quadrature amplitude modulation06Multiplexage fréquence orthogonal07Orthogonal frequency division multiplexing07Multiplaje frecuencia ortogonal07Boucle verrouillage phase08Phase locked loop08Bucle enclavamiento fase08Bande base09Base band09Banda base09Haute température10High temperature10Alta temperatura10Amplificateur faible bruit11Low noise amplifier11Amplificador bajo ruido11Onde millimétrique12Millimetric wave12Onda milimétrica12Amplificateur puissance13Power amplifier13Amplificador potencia13SiliciumNC22SiliconNC22SilicioNC22Céramique23Ceramic materials23Cerámica23Electronique puissance46Power electronics46Electrónica potencia46Hyperfréquence14Microwave14Hiperfrecuencia14037OTOOTO2011 IEEE International Solid-State Circuits ConferenceSan Francisco USA2011-02PASCAL 12-0058875 INISTA 65-nm CMOS Fully Integrated Transceiver Module for 60-GHz Wireless HD ApplicationsSILIGARIS (Alexandre); RICHARD (Olivier); MARTINEAU (Baudouin); MOUNET (Christopher); CHAIX (Fabrice); FERRAGUT (Romain); DEHOS (Cedric); LANTERI (Jérôme); DUSSOPT (Laurent); YAMAMOTO (Silas D.); PILARD (Romain); BUSSON (Pierre); CATHELIN (Andreia); BELOT (Didier); VINCENT (Pierre); SAVOJ (Jafar); MANOLI (Yiannos); DARABI (Hooman); PALASKAS (Yorgos); MOYAL (Michael)STMicroelectronics/Crolles/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 9 aut., 11 aut., 12 aut., 13 aut., 14 aut., 15 aut.); University of Nice-Sophia Antipolis, Valbonne 06560, France, and also with CEA-LETI/Grenoble 38054/France (8 aut.); Division Concepção de Sistemas de Hardware (DCSH), Center for Information Technology "Renato Archer" (CTI/Campinas, SP/Brésil (10 aut.); STMicroelectronics/Crolles/France (10 aut.); Xilinc, Inc./San Jose, CA 95124/Etats-Unis (1 aut.); University of Freiburg-IMTEK/79110 Freiburg/Allemagne (2 aut.); Broadcom Corp./Irvine, CA 92617/Etats-Unis (3 aut.); Intel Labs/Hillsboro, OR 97124/Etats-Unis (4 aut.); Intel Corp./Haifa/Israël (5 aut.)
Publication en série; Congrès; Niveau analytique
IEEE journal of solid-state circuits; ISSN 0018-9200; Coden IJSCBC; Etats-Unis; Da. 2011; Vol. 46; No. 12; Pp. 3005-3017; Bibl. 33 ref.AnglaisA fully integrated WirelessHD compatible 60-GHz transceiver module in 65-nm CMOS process is presented, covering the four standard channels. The silicon die is flip-chipped on top of a low-cost HTCC module which also includes an external 65-nm CMOS PA and large beamwidth antennas targeting industrial manufacturability. The module achieves a 16QAM OFDM modulation wireless link with 3.8 Gbps over 1 m. The transceiver consumption is 454 mW in RX mode (including PLL) and 1090 mW in TX mode (including PLL and external PA).001D03F06A; 001D03G02A5; 001D03G02A2; 001D03DCircuit intégré CMOS; Emetteur récepteur; Technologie MOS complémentaire; Matrice formage; Diminution coût; Modulation amplitude en quadrature; Multiplexage fréquence orthogonal; Boucle verrouillage phase; Bande base; Haute température; Amplificateur faible bruit; Onde millimétrique; Amplificateur puissance; Silicium; Céramique; Electronique puissanceHyperfréquenceCMOS integrated circuits; Transceiver; Complementary MOS technology; Die; Cost lowering; Quadrature amplitude modulation; Orthogonal frequency division multiplexing; Phase locked loop; Base band; High temperature; Low noise amplifier; Millimetric wave; Power amplifier; Silicon; Ceramic materials; Power electronicsMicrowaveEmisor receptor; Tecnología MOS complementario; Matriz formadora; Reducción costes; Multiplaje frecuencia ortogonal; Bucle enclavamiento fase; Banda base; Alta temperatura; Amplificador bajo ruido; Onda milimétrica; Amplificador potencia; Silicio; Cerámica; Electrónica potenciaINIST-222L.35400050739912022012-0058875 001B73 Magneto-optical investigation of two-dimensional gases in n-type resonant tunneling diodesH. V. A. GaletiDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.Y. Galvao GobatoDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.V. O. GordoDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.L. F. Dos SantosDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.M. J. S. P. BrasilInstituto de Fisica "Gleb Wataghin", Universidade Estadual de Campinas13083-970 Campinas, SPBRA5 aut.V. Lopez-RichardDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.G. E. MarquesDepartamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.M. OrlitaGrenoble High Magnet Field LaboratoryGrenobleFRA8 aut.9 aut.10 aut.Institute of Physics, Charles University, Ke Karlovu 512116 PrahaCZE8 aut.9 aut.J. KuncGrenoble High Magnet Field LaboratoryGrenobleFRA8 aut.9 aut.10 aut.Institute of Physics, Charles University, Ke Karlovu 512116 PrahaCZE8 aut.9 aut.D. K. MaudeGrenoble High Magnet Field LaboratoryGrenobleFRA8 aut.9 aut.10 aut.M. HeniniSchool of Physics and Astronomy, Nottingham Nanotechnology and Nanoscience Centre, University of NottinghamNottingham NG7 2RDGBR11 aut.R. J. AireyEPSRC National Centre for III-V Technologies, University of SheffieldSheffieldGBR12 aut.12-00603822012PASCAL 12-0060382 INISTPascal:12-0060382000D230268-1242Semicond. sci. technol.Semiconductor science and technologyAccumulation layersAluminium Gallium Arsenides MixedAluminium Gallium Selenides MixedCharge carrier generationFill factorGallium arsenidesHigh fieldLine intensityMagnetic field effectsMagneto-optical effectsPhotoluminescencePolarized spinQuantum wellsResonant tunnellingTwo-dimensional hole gasEffet magnétooptiqueEffet tunnel résonnantChamp intenseEffet champ magnétiqueIntensité raiePhotoluminescenceGénération porteur chargeSpin polariséAluminium Gallium Séléniure MixteAluminium Gallium Arséniure MixteFacteur remplissageCouche accumulationPuits quantiqueArséniure de galliumGaz trou 2 dimensionsGaAs
We have studied the polarized emission from the contact layers and the quantum well of asymmetric n-type GaAs/GaAlAs resonant tunneling diodes under high magnetic fields (up to 19 T) parallel to the tunnel current. The photoluminescence from the GaAs contact layers shows evidence of the recombination from a two-dimensional hole gas accumulated next to the GaAlAs barrier and free carriers. Both the energy position and the intensity of this emission are voltage dependent. In addition, the photoluminescence from the two-dimensional hole gas and quantum well is strongly spin-polarized under the applied voltage and high magnetic fields. Pronounced oscillatory features are observed in the magnetic field dependence of the polarization degree from the quantum well and the two-dimensional hole emissions at integer filling factors. The obtained data show that resonant tunneling diodes are interesting systems to study the physical properties of voltage-controlled two-dimensional gases in the accumulation layers and quantum well.
0268-1242SSTEETSemicond. sci. technol.271Magneto-optical investigation of two-dimensional gases in n-type resonant tunneling diodesGALETI (H. V. A.)GALVAO GOBATO (Y.)GORDO (V. O.)DOS SANTOS (L. F.)BRASIL (M. J. S. P.)LOPEZ-RICHARD (V.)MARQUES (G. E.)ORLITA (M.)KUNC (J.)MAUDE (D. K.)HENINI (M.)AIREY (R. J.)Departamento de Fisica, Universidade Federal de São Carlos13560-905 São Carlos, SPBRA1 aut.2 aut.3 aut.4 aut.6 aut.7 aut.Instituto de Fisica "Gleb Wataghin", Universidade Estadual de Campinas13083-970 Campinas, SPBRA5 aut.Grenoble High Magnet Field LaboratoryGrenobleFRA8 aut.9 aut.10 aut.Institute of Physics, Charles University, Ke Karlovu 512116 PrahaCZE8 aut.9 aut.School of Physics and Astronomy, Nottingham Nanotechnology and Nanoscience Centre, University of NottinghamNottingham NG7 2RDGBR11 aut.EPSRC National Centre for III-V Technologies, University of SheffieldSheffieldGBR12 aut.015018.1-015018.72012ENGINIST210413540005086262301900000© 2012 INIST-CNRS. All rights reserved.22 ref.12-0060382PASemiconductor science and technologyGBRWe have studied the polarized emission from the contact layers and the quantum well of asymmetric n-type GaAs/GaAlAs resonant tunneling diodes under high magnetic fields (up to 19 T) parallel to the tunnel current. The photoluminescence from the GaAs contact layers shows evidence of the recombination from a two-dimensional hole gas accumulated next to the GaAlAs barrier and free carriers. Both the energy position and the intensity of this emission are voltage dependent. In addition, the photoluminescence from the two-dimensional hole gas and quantum well is strongly spin-polarized under the applied voltage and high magnetic fields. Pronounced oscillatory features are observed in the magnetic field dependence of the polarization degree from the quantum well and the two-dimensional hole emissions at integer filling factors. The obtained data show that resonant tunneling diodes are interesting systems to study the physical properties of voltage-controlled two-dimensional gases in the accumulation layers and quantum well.001B70H67DEffet magnétooptique02Magneto-optical effects02Effet tunnel résonnant03Resonant tunnelling03Champ intense04High field04Effet champ magnétique05Magnetic field effects05Intensité raie06Line intensity06Photoluminescence07Photoluminescence07Génération porteur charge08Charge carrier generation08Generación portador carga08Spin polarisé10Polarized spin10Spin polarizado10Aluminium Gallium Séléniure MixteNCNA11Aluminium Gallium Selenides MixedNCNA11MixtoNCNA11Aluminium Gallium Arséniure MixteNCNA12Aluminium Gallium Arsenides MixedNCNA12MixtoNCNA12Facteur remplissage13Fill factor13Couche accumulation14Accumulation layers14Puits quantique16Quantum wells16Arséniure de galliumNK17Gallium arsenidesNK17Gaz trou 2 dimensions18Two-dimensional hole gas18GaAsINC52037PASCAL 12-0060382 INISTMagneto-optical investigation of two-dimensional gases in n-type resonant tunneling diodesGALETI (H. V. A.); GALVAO GOBATO (Y.); GORDO (V. O.); DOS SANTOS (L. F.); BRASIL (M. J. S. P.); LOPEZ-RICHARD (V.); MARQUES (G. E.); ORLITA (M.); KUNC (J.); MAUDE (D. K.); HENINI (M.); AIREY (R. J.)Departamento de Fisica, Universidade Federal de São Carlos/13560-905 São Carlos, SP/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 6 aut., 7 aut.); Instituto de Fisica "Gleb Wataghin", Universidade Estadual de Campinas/13083-970 Campinas, SP/Brésil (5 aut.); Grenoble High Magnet Field Laboratory/Grenoble/France (8 aut., 9 aut., 10 aut.); Institute of Physics, Charles University, Ke Karlovu 5/12116 Praha/Tchèque, République (8 aut., 9 aut.); School of Physics and Astronomy, Nottingham Nanotechnology and Nanoscience Centre, University of Nottingham/Nottingham NG7 2RD/Royaume-Uni (11 aut.); EPSRC National Centre for III-V Technologies, University of Sheffield/Sheffield/Royaume-Uni (12 aut.)
Publication en série; Niveau analytique
Semiconductor science and technology; ISSN 0268-1242; Coden SSTEET; Royaume-Uni; Da. 2012; Vol. 27; No. 1; 015018.1-015018.7; Bibl. 22 ref.AnglaisWe have studied the polarized emission from the contact layers and the quantum well of asymmetric n-type GaAs/GaAlAs resonant tunneling diodes under high magnetic fields (up to 19 T) parallel to the tunnel current. The photoluminescence from the GaAs contact layers shows evidence of the recombination from a two-dimensional hole gas accumulated next to the GaAlAs barrier and free carriers. Both the energy position and the intensity of this emission are voltage dependent. In addition, the photoluminescence from the two-dimensional hole gas and quantum well is strongly spin-polarized under the applied voltage and high magnetic fields. Pronounced oscillatory features are observed in the magnetic field dependence of the polarization degree from the quantum well and the two-dimensional hole emissions at integer filling factors. The obtained data show that resonant tunneling diodes are interesting systems to study the physical properties of voltage-controlled two-dimensional gases in the accumulation layers and quantum well.001B70H67DEffet magnétooptique; Effet tunnel résonnant; Champ intense; Effet champ magnétique; Intensité raie; Photoluminescence; Génération porteur charge; Spin polarisé; Aluminium Gallium Séléniure Mixte; Aluminium Gallium Arséniure Mixte; Facteur remplissage; Couche accumulation; Puits quantique; Arséniure de gallium; Gaz trou 2 dimensions; GaAsMagneto-optical effects; Resonant tunnelling; High field; Magnetic field effects; Line intensity; Photoluminescence; Charge carrier generation; Polarized spin; Aluminium Gallium Selenides Mixed; Aluminium Gallium Arsenides Mixed; Fill factor; Accumulation layers; Quantum wells; Gallium arsenides; Two-dimensional hole gasGeneración portador carga; Spin polarizado; Mixto; MixtoINIST-21041.35400050862623019012-0060382 001B74 Origin of rare earth element anomalies in mangrove sediments, Sepetiba Bay, SE Brazil: used as geochemical tracers of sediment sourcesEmmanoel V. Filho SilvaDepartamento de Geoquimica, Instituto de Química, Universidade Federal FluminenseNiterói, RJBRA1 aut.2 aut.5 aut.6 aut.Christian J. SandersDepartamento de Geoquimica, Instituto de Química, Universidade Federal FluminenseNiterói, RJBRA1 aut.2 aut.5 aut.6 aut.Michel BernatLaboratoire de Géochimie, Universite Nice Sophia Antipolis, 28 avenue ValroseNiceFRA3 aut.Ana M. G. FigueiredoLaboratório de Radioqufmica, IPEN-CNEN/USPPinheiros, SPBRA4 aut.Silvia M. SellaDepartamento de Geoquimica, Instituto de Química, Universidade Federal FluminenseNiterói, RJBRA1 aut.2 aut.5 aut.6 aut.Julio WassermanDepartamento de Geoquimica, Instituto de Química, Universidade Federal FluminenseNiterói, RJBRA1 aut.2 aut.5 aut.6 aut.12-00623902011PASCAL 12-0062390 INISTPascal:12-0062390000D221866-6280Environ. earth sci. : (Print)Environmental earth sciences : (Print)BrazilRio de Janeiro Brazilanomaliesbaysdrill coresecosystemsforestshabitatmangrove swampsmudrare earthsriverssediment sourcesshaleshorelinestidal flatstracersTerre rareAnomalieBaieTraceurSource sédimentHabitatMarais mangroveLigne rivageCarotteForêtSlikkeShaleBoueRivièreEcosystèmeBrésilRio de Janeiro
Elemental contents were determined in two mangrove habitats along Sepetiba Bay, SE Brazil, an area impacted by local industrial activities, as well as hinterland water diversion networks. This study demonstrates how specific REEs (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) may be used as a sediment source tracer to mangrove-dominated coastlines. From the two stations studied, a pair of cores was collected, one in the mangrove forest and the other in the tidal flat. Station 1 results show a general enrichment in most of the fractioned patterns of the REEs normalised by Post-Archean Australian Shale. The relatively light rare earth elements are similarly enriched in the generally more polluted Station 1. Despite the probable difference in background sediment characteristics, a common sharp increase in mud contents patterns in the upper part of the mangrove sediment core was related to a lower REE content as well as Eu anomalies. With existing knowledge of clockwise water circulation in the bay, these patterns can be explained by man-made water diversion from the Sao Francisco and Guandu rivers, initiated more than 30 years ago, whereby suspended matter with relatively large contents of REEs and material originating from industrial sources accumulate in the eastern sector of the bay. This is the first comprehensive assessment of REEs as sedimentary tracers in a mangrove ecosystem in Brazil.
1866-6280Environ. earth sci. : (Print)645Origin of rare earth element anomalies in mangrove sediments, Sepetiba Bay, SE Brazil: used as geochemical tracers of sediment sourcesSILVA (Emmanoel V. FILHO)SANDERS (Christian J.)BERNAT (Michel)FIGUEIREDO (Ana M. G.)SELLA (Silvia M.)WASSERMAN (Julio)Departamento de Geoquimica, Instituto de Química, Universidade Federal FluminenseNiterói, RJBRA1 aut.2 aut.5 aut.6 aut.Laboratoire de Géochimie, Universite Nice Sophia Antipolis, 28 avenue ValroseNiceFRA3 aut.Laboratório de Radioqufmica, IPEN-CNEN/USPPinheiros, SPBRA4 aut.1257-12672011ENGINIST167703540005055143200600000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0062390PAEnvironmental earth sciences : (Print)DEUElemental contents were determined in two mangrove habitats along Sepetiba Bay, SE Brazil, an area impacted by local industrial activities, as well as hinterland water diversion networks. This study demonstrates how specific REEs (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) may be used as a sediment source tracer to mangrove-dominated coastlines. From the two stations studied, a pair of cores was collected, one in the mangrove forest and the other in the tidal flat. Station 1 results show a general enrichment in most of the fractioned patterns of the REEs normalised by Post-Archean Australian Shale. The relatively light rare earth elements are similarly enriched in the generally more polluted Station 1. Despite the probable difference in background sediment characteristics, a common sharp increase in mud contents patterns in the upper part of the mangrove sediment core was related to a lower REE content as well as Eu anomalies. With existing knowledge of clockwise water circulation in the bay, these patterns can be explained by man-made water diversion from the Sao Francisco and Guandu rivers, initiated more than 30 years ago, whereby suspended matter with relatively large contents of REEs and material originating from industrial sources accumulate in the eastern sector of the bay. This is the first comprehensive assessment of REEs as sedimentary tracers in a mangrove ecosystem in Brazil.001E01P02226C02Terre rare01rare earths01Tierras raras01Anomalie02anomalies02Anomalía02Baie03bays03Traceur04tracers04Trazador04Source sédiment05sediment sources05Habitat06habitat06Habitat06Marais mangrove07mangrove swamps07Manglar07Ligne rivage08shorelines08Línea costa08Carotte09drill cores09Testigo09Forêt10forests10Bosque10Slikke11tidal flats11Marea parada11ShaleNV14shaleNV14EsquistoNV14Boue15mud15Rivière17rivers17Río17Ecosystème19ecosystems19Ecosistema19BrésilNG61BrazilNG61BrasilNG61Rio de JaneiroNG62Rio de Janeiro BrazilNG62Rio de JaneiroNG62Roche clastiqueNVclastic rocksNVRoca clásticaNVRoche sédimentaireNVsedimentary rocksNVRoca sedimentariaNVAmérique du Sud564South America564America del sur564044PASCAL 12-0062390 INISTOrigin of rare earth element anomalies in mangrove sediments, Sepetiba Bay, SE Brazil: used as geochemical tracers of sediment sourcesSILVA (Emmanoel V. FILHO); SANDERS (Christian J.); BERNAT (Michel); FIGUEIREDO (Ana M. G.); SELLA (Silvia M.); WASSERMAN (Julio)Departamento de Geoquimica, Instituto de Química, Universidade Federal Fluminense/Niterói, RJ/Brésil (1 aut., 2 aut., 5 aut., 6 aut.); Laboratoire de Géochimie, Universite Nice Sophia Antipolis, 28 avenue Valrose/Nice/France (3 aut.); Laboratório de Radioqufmica, IPEN-CNEN/USP/Pinheiros, SP/Brésil (4 aut.)
Publication en série; Niveau analytique
Environmental earth sciences : (Print); ISSN 1866-6280; Allemagne; Da. 2011; Vol. 64; No. 5; Pp. 1257-1267; Bibl. 1 p.1/4AnglaisElemental contents were determined in two mangrove habitats along Sepetiba Bay, SE Brazil, an area impacted by local industrial activities, as well as hinterland water diversion networks. This study demonstrates how specific REEs (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) may be used as a sediment source tracer to mangrove-dominated coastlines. From the two stations studied, a pair of cores was collected, one in the mangrove forest and the other in the tidal flat. Station 1 results show a general enrichment in most of the fractioned patterns of the REEs normalised by Post-Archean Australian Shale. The relatively light rare earth elements are similarly enriched in the generally more polluted Station 1. Despite the probable difference in background sediment characteristics, a common sharp increase in mud contents patterns in the upper part of the mangrove sediment core was related to a lower REE content as well as Eu anomalies. With existing knowledge of clockwise water circulation in the bay, these patterns can be explained by man-made water diversion from the Sao Francisco and Guandu rivers, initiated more than 30 years ago, whereby suspended matter with relatively large contents of REEs and material originating from industrial sources accumulate in the eastern sector of the bay. This is the first comprehensive assessment of REEs as sedimentary tracers in a mangrove ecosystem in Brazil.001E01P02; 226C02Terre rare; Anomalie; Baie; Traceur; Source sédiment; Habitat; Marais mangrove; Ligne rivage; Carotte; Forêt; Slikke; Shale; Boue; Rivière; Ecosystème; Brésil; Rio de JaneiroRoche clastique; Roche sédimentaire; Amérique du Sudrare earths; anomalies; bays; tracers; sediment sources; habitat; mangrove swamps; shorelines; drill cores; forests; tidal flats; shale; mud; rivers; ecosystems; Brazil; Rio de Janeiro Brazilclastic rocks; sedimentary rocks; South AmericaTierras raras; Anomalía; Trazador; Habitat; Manglar; Línea costa; Testigo; Bosque; Marea parada; Esquisto; Río; Ecosistema; Brasil; Rio de JaneiroINIST-16770.35400050551432006012-0062390 001B75 In-Situ Microtomographic Characterization of Single-Cavity Growth During High-Temperature Creep of Leaded BrassA. IsaacHelmholtz-Zentrum Berlin fur Materialien und Energie GmbH14109 BerlinDEU1 aut.Brazilian Synchrotron Light LaboratoryCampinas, SP 13083-970BRA1 aut.K. DzieciolEcole Nationale Supérieure des Mines de Saint-Étienne 158, Cours Fauriel42023 Saint-ÉtienneFRA2 aut.4 aut.F. SketIMDEA Materials Institute28040 MadridESP3 aut.A. BorbelyEcole Nationale Supérieure des Mines de Saint-Étienne 158, Cours Fauriel42023 Saint-ÉtienneFRA2 aut.4 aut.12-00652522011PASCAL 12-0065252 INISTPascal:12-0065252000D211073-5623Metall. mater. trans., A Phys. metall. mater. sci.Metallurgical and materials transactions. A, Physical metallurgy and materials scienceBrassCopper base alloysCreepHigh temperatureIn situTemperatureIn situHaute températureTempératureFluageAlliage base cuivreLaiton
Synchrotron microtomography was used for in-situ characterization of high-temperature creep damage in leaded brass. Applying image registration to subsequent tomographic reconstructions, the volumetric growth rate of single cavities with equivalent radii between 2 and 4.3 μm was assessed. We conclude from the volume dependence of the growth rates that both the viscous flow and grain boundary (GB) diffusion mechanisms influence void growth. We show that void growth in leaded brass is retarded by negative stress triaxiality, which develops in the matrix during heating the specimen to the deformation temperature.
1073-5623MMTAEBMetall. mater. trans., A Phys. metall. mater. sci.4210In-Situ Microtomographic Characterization of Single-Cavity Growth During High-Temperature Creep of Leaded BrassISAAC (A.)DZIECIOL (K.)SKET (F.)BORBELY (A.)Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH14109 BerlinDEU1 aut.Brazilian Synchrotron Light LaboratoryCampinas, SP 13083-970BRA1 aut.Ecole Nationale Supérieure des Mines de Saint-Étienne 158, Cours Fauriel42023 Saint-ÉtienneFRA2 aut.4 aut.IMDEA Materials Institute28040 MadridESP3 aut.3022-30302011ENGINIST3179A3540001912372901000000© 2012 INIST-CNRS. All rights reserved.38 ref.12-0065252PAMetallurgical and materials transactions. A, Physical metallurgy and materials scienceUSASynchrotron microtomography was used for in-situ characterization of high-temperature creep damage in leaded brass. Applying image registration to subsequent tomographic reconstructions, the volumetric growth rate of single cavities with equivalent radii between 2 and 4.3 μm was assessed. We conclude from the volume dependence of the growth rates that both the viscous flow and grain boundary (GB) diffusion mechanisms influence void growth. We show that void growth in leaded brass is retarded by negative stress triaxiality, which develops in the matrix during heating the specimen to the deformation temperature.001D11A001D11G04240In situ55In situ55In situ55Haute température56High temperature56Hochtemperatur56Alta temperatura56Température57Temperature57Temperatur57Temperatura57Fluage58Creep58Kriechen58Fluencia58Alliage base cuivreNK59Copper base alloysNK59Laiton60Brass60Messing60Latón60Propriété mécanique74Mechanical properties74Propiedad mecánica74044OTOOTOPASCAL 12-0065252 INISTIn-Situ Microtomographic Characterization of Single-Cavity Growth During High-Temperature Creep of Leaded BrassISAAC (A.); DZIECIOL (K.); SKET (F.); BORBELY (A.)Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH/14109 Berlin/Allemagne (1 aut.); Brazilian Synchrotron Light Laboratory/Campinas, SP 13083-970/Brésil (1 aut.); Ecole Nationale Supérieure des Mines de Saint-Étienne 158, Cours Fauriel/42023 Saint-Étienne/France (2 aut., 4 aut.); IMDEA Materials Institute/28040 Madrid/Espagne (3 aut.)
Publication en série; Niveau analytique
Metallurgical and materials transactions. A, Physical metallurgy and materials science; ISSN 1073-5623; Coden MMTAEB; Etats-Unis; Da. 2011; Vol. 42; No. 10; Pp. 3022-3030; Bibl. 38 ref.AnglaisSynchrotron microtomography was used for in-situ characterization of high-temperature creep damage in leaded brass. Applying image registration to subsequent tomographic reconstructions, the volumetric growth rate of single cavities with equivalent radii between 2 and 4.3 μm was assessed. We conclude from the volume dependence of the growth rates that both the viscous flow and grain boundary (GB) diffusion mechanisms influence void growth. We show that void growth in leaded brass is retarded by negative stress triaxiality, which develops in the matrix during heating the specimen to the deformation temperature.001D11A; 001D11G04; 240In situ; Haute température; Température; Fluage; Alliage base cuivre; LaitonPropriété mécaniqueIn situ; High temperature; Temperature; Creep; Copper base alloys; BrassMechanical propertiesHochtemperatur; Temperatur; Kriechen; MessingIn situ; Alta temperatura; Temperatura; Fluencia; LatónINIST-3179A.35400019123729010012-0065252 001B76 Three-dimensional numerical modeling of tsunami-related internal gravity waves in the Hawaiian atmosphereGiovanni OcchipintiInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ Paris Diderot, UMR 7154 CNRS94100 Saint Maur des FossésFRA1 aut.2 aut.7 aut.Office National d'Etudes et Recherches AérospatialesPalaiseauFRA1 aut.Pierdavide CoïssonInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ Paris Diderot, UMR 7154 CNRS94100 Saint Maur des FossésFRA1 aut.2 aut.7 aut.Jonathan J. MakelaDepartment of Electrical and Computer Engineering, University of Illinois at Urbana-ChampaignUrbana, IllinoisUSA3 aut.Sébastien AllgeyerCEA-DAM-DIF91297 ArpajonFRA4 aut.6 aut.Alam KheraniInstituto Nacional de Pesquisais Espaciais (INPE), Sao Jose dos Campos, Sao Paula12227010BRA5 aut.Hélène HebertCEA-DAM-DIF91297 ArpajonFRA4 aut.6 aut.Philippe LognonneInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ Paris Diderot, UMR 7154 CNRS94100 Saint Maur des FossésFRA1 aut.2 aut.7 aut.12-00710762011PASCAL 12-0071076 INISTPascal:12-0071076000D201343-8832Earth planets spaceEarth, planets and spaceAirglowHawaiiInternal gravity waveIonospheric plasmaNatural hazardsPacific OceanPerturbationTohokuatmospheredetectiondigital simulationearthquakesinterpretationmonitoringnumerical modelsocean-atmosphere interactionremote sensingthree-dimensional modelstsunamisModèle numériqueSimulation numériqueTsunamiOnde interne gravitéAtmosphèreSéismePerturbationPlasma ionosphériqueOcéan PacifiqueModèle 3 dimensionsInteraction atmosphère océanLuminescence atmosphériqueInterprétationTélédétectionSurveillanceDétectionRisque naturelTohokuHawaï
The tremendous tsunami following the 2011 Tohoku Earthquake produced internal gravity waves (IGWs) in the neutral atmosphere and large disturbances in the overlying ionospheric plasma while propagating through the Pacific ocean. To corroborate the tsunamigenic hypothesis of these perturbations, we use a 3D numerical modeling of the ocean-atmosphere coupling, to reproduce the tsunami signature observed in the airglow by the imager located in Hawaii and clearly showing the shape of the modeled IGW. The agreement between data and synthetics not only supports the interpretation of the tsunami-related-IGW behavior, but strongly shows that atmospheric and ionospheric remote sensing can provide new tools for oceanic monitoring and tsunami detection.
1343-8832Earth planets space637Three-dimensional numerical modeling of tsunami-related internal gravity waves in the Hawaiian atmosphereFirst Results of the 2011 Off the Pacific Coast of Tohoku EarthquakeOCCHIPINTI (Giovanni)COÏSSON (Pierdavide)MAKELA (Jonathan J.)ALLGEYER (Sébastien)KHERANI (Alam)HEBERT (Hélène)LOGNONNE (Philippe)KANAMORI (Hiroo)ed.YOMOGIDA (Kiyoshi)ed.Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ Paris Diderot, UMR 7154 CNRS94100 Saint Maur des FossésFRA1 aut.2 aut.7 aut.Office National d'Etudes et Recherches AérospatialesPalaiseauFRA1 aut.Department of Electrical and Computer Engineering, University of Illinois at Urbana-ChampaignUrbana, IllinoisUSA3 aut.CEA-DAM-DIF91297 ArpajonFRA4 aut.6 aut.Instituto Nacional de Pesquisais Espaciais (INPE), Sao Jose dos Campos, Sao Paula12227010BRA5 aut.California Institute of TechnologyUSA1 aut.Hokkaido UniversityJPN2 aut.847-8512011ENGINIST27743540005088453606100000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0071076PAEarth, planets and spaceJPNThe tremendous tsunami following the 2011 Tohoku Earthquake produced internal gravity waves (IGWs) in the neutral atmosphere and large disturbances in the overlying ionospheric plasma while propagating through the Pacific ocean. To corroborate the tsunamigenic hypothesis of these perturbations, we use a 3D numerical modeling of the ocean-atmosphere coupling, to reproduce the tsunami signature observed in the airglow by the imager located in Hawaii and clearly showing the shape of the modeled IGW. The agreement between data and synthetics not only supports the interpretation of the tsunami-related-IGW behavior, but strongly shows that atmospheric and ionospheric remote sensing can provide new tools for oceanic monitoring and tsunami detection.001E001E01D220DModèle numérique01numerical models01Simulation numérique02digital simulation02Simulación numérica02Tsunami03tsunamis03Tsunami03Onde interne gravité04Internal gravity wave04Onda interna gravedad04Atmosphère05atmosphere05Atmósfera05Séisme06earthquakes06Sismo06Perturbation07Perturbation07Perturbación07Plasma ionosphérique08Ionospheric plasma08Plasma ionosférico08Océan Pacifique56409Pacific Ocean56409Océano Pacífico56409Modèle 3 dimensions10three-dimensional models10Modelo 3 dimensiones10Interaction atmosphère océan11ocean-atmosphere interaction11Luminescence atmosphérique12Airglow12Luminiscencia atmosférica12Interprétation13interpretation13Interpretación13Télédétection14remote sensing14Detección a distancia14Surveillance15monitoring15Vigilancia15Détection16detection16Risque naturel17Natural hazards17Riesgo natural17TohokuNG61TohokuNG61HawaïNG62HawaiiNG62HonshuNGHonshuNGHonshuNGJaponNGJapanNGJapónNGExtrême OrientNGFar EastNGExtremo OrienteNGAsie564Asia564Asia564PolynésieNGPolynesiaNGPolinesiaNGOcéanie564Oceania564Oceania564051OTOOTOPASCAL 12-0071076 INISTThree-dimensional numerical modeling of tsunami-related internal gravity waves in the Hawaiian atmosphereOCCHIPINTI (Giovanni); COÏSSON (Pierdavide); MAKELA (Jonathan J.); ALLGEYER (Sébastien); KHERANI (Alam); HEBERT (Hélène); LOGNONNE (Philippe); KANAMORI (Hiroo); YOMOGIDA (Kiyoshi)Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ Paris Diderot, UMR 7154 CNRS/94100 Saint Maur des Fossés/France (1 aut., 2 aut., 7 aut.); Office National d'Etudes et Recherches Aérospatiales/Palaiseau/France (1 aut.); Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign/Urbana, Illinois/Etats-Unis (3 aut.); CEA-DAM-DIF/91297 Arpajon/France (4 aut., 6 aut.); Instituto Nacional de Pesquisais Espaciais (INPE), Sao Jose dos Campos, Sao Paula/12227010/Brésil (5 aut.); California Institute of Technology/Etats-Unis (1 aut.); Hokkaido University/Japon (2 aut.)
Publication en série; Niveau analytique
Earth, planets and space; ISSN 1343-8832; Japon; Da. 2011; Vol. 63; No. 7; Pp. 847-851; Bibl. 3/4 p.AnglaisThe tremendous tsunami following the 2011 Tohoku Earthquake produced internal gravity waves (IGWs) in the neutral atmosphere and large disturbances in the overlying ionospheric plasma while propagating through the Pacific ocean. To corroborate the tsunamigenic hypothesis of these perturbations, we use a 3D numerical modeling of the ocean-atmosphere coupling, to reproduce the tsunami signature observed in the airglow by the imager located in Hawaii and clearly showing the shape of the modeled IGW. The agreement between data and synthetics not only supports the interpretation of the tsunami-related-IGW behavior, but strongly shows that atmospheric and ionospheric remote sensing can provide new tools for oceanic monitoring and tsunami detection.001E; 001E01D; 220DModèle numérique; Simulation numérique; Tsunami; Onde interne gravité; Atmosphère; Séisme; Perturbation; Plasma ionosphérique; Océan Pacifique; Modèle 3 dimensions; Interaction atmosphère océan; Luminescence atmosphérique; Interprétation; Télédétection; Surveillance; Détection; Risque naturel; Tohoku; HawaïHonshu; Japon; Extrême Orient; Asie; Polynésie; Océanienumerical models; digital simulation; tsunamis; Internal gravity wave; atmosphere; earthquakes; Perturbation; Ionospheric plasma; Pacific Ocean; three-dimensional models; ocean-atmosphere interaction; Airglow; interpretation; remote sensing; monitoring; detection; Natural hazards; Tohoku; HawaiiHonshu; Japan; Far East; Asia; Polynesia; OceaniaSimulación numérica; Tsunami; Onda interna gravedad; Atmósfera; Sismo; Perturbación; Plasma ionosférico; Océano Pacífico; Modelo 3 dimensiones; Luminiscencia atmosférica; Interpretación; Detección a distancia; Vigilancia; Riesgo naturalINIST-2774.35400050884536061012-0071076 001B77 The resonant response of the ionosphere imaged after the 2011 off the Pacific coast of Tohoku EarthquakeLucie M. RollandInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS94100 Saint-MaurFRA1 aut.2 aut.3 aut.6 aut.Philippe LognonneInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS94100 Saint-MaurFRA1 aut.2 aut.3 aut.6 aut.Elvira AstafyevaInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS94100 Saint-MaurFRA1 aut.2 aut.3 aut.6 aut.E. Alam KheraniInstituto Nacional de Pesquisais Espaciais (INPE), São Jose dos Campos, São Paulo12227010BRA4 aut.Naoki KobayashiInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-kuSagamihara City, Kanagawa 252-5210JPN5 aut.Michele MannInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS94100 Saint-MaurFRA1 aut.2 aut.3 aut.6 aut.Hiroshi MunekaneGeospatial Information Authorithy of Japan, 1 KitasatoTsukuba 305-0811JPN7 aut.12-00710812011PASCAL 12-0071081 INISTPascal:12-0071081000D191343-8832Earth planets spaceEarth, planets and spaceEarth atmosphereEigenmodeGlobal Positioning SystemGravity waveHigh densityIonospheric disturbanceMarches ItalyNatural hazardsPacific CoastTime seriesTohokuTotal electron contentamplitudeanomaliesdurationearthquakesextensionfrequencyionospheremainshocksnetworksresonancerupturetsunamisIonosphèreSéismePerturbation ionosphériqueSystème GPSContenu total électronAnomalieDensité élevéeRéseauSecousse principaleExtensionAmplitudeDuréeRuptureSérie temporelleFréquenceRésonanceTsunamiOnde gravitéMode propreAtmosphère terrestreRisque naturelCôte Pacifique Etats UnisTohokuMarches
We provide here a preliminary analysis of the ionospheric perturbations observed after the 11 March 2011 Tohoku Earthquake using a GPS-derived Total Electron Content (TEC) technique. Such anomalies are routinely observed after seismic events of magnitude Mw = 6 and more. Here, we use the high density and the wide coverage of the Japanese Global Positioning System (GPS) network GEONET to image the ionosphere just after the main shock. We describe ionospheric perturbations with exceptional extension in amplitude and duration. As already seen in earlier events, a first intense signal is observed about 10 minutes after the seismic rupture; the first response consists in two modes: one propagating beyond 3 km/s and the other at nearly 1 km/s. A further analysis of TEC time series of the latter mode near the source shows the typical frequencies of acoustic resonance. Beyond 400 km from the source, both the tsunami induced gravity wave and a third mode are imaged, the latter for the first time. We show that the pattern of this slow (225 m/s ± 10 m/s) and long period gravity wave (1.8 ± 0.2 mHz) is most visible in the North-West of the epicentral area. This description is corroborated by a computation of the normal modes of the solid Earth-atmosphere system.
1343-8832Earth planets space637The resonant response of the ionosphere imaged after the 2011 off the Pacific coast of Tohoku EarthquakeFirst Results of the 2011 Off the Pacific Coast of Tohoku EarthquakeROLLAND (Lucie M.)LOGNONNE (Philippe)ASTAFYEVA (Elvira)ALAM KHERANI (E.)KOBAYASHI (Naoki)MANN (Michele)MUNEKANE (Hiroshi)KANAMORI (Hiroo)ed.YOMOGIDA (Kiyoshi)ed.Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS94100 Saint-MaurFRA1 aut.2 aut.3 aut.6 aut.Instituto Nacional de Pesquisais Espaciais (INPE), São Jose dos Campos, São Paulo12227010BRA4 aut.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-kuSagamihara City, Kanagawa 252-5210JPN5 aut.Geospatial Information Authorithy of Japan, 1 KitasatoTsukuba 305-0811JPN7 aut.California Institute of TechnologyUSA1 aut.Hokkaido UniversityJPN2 aut.853-8572011ENGINIST27743540005088453606200000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0071081PAEarth, planets and spaceJPNWe provide here a preliminary analysis of the ionospheric perturbations observed after the 11 March 2011 Tohoku Earthquake using a GPS-derived Total Electron Content (TEC) technique. Such anomalies are routinely observed after seismic events of magnitude Mw = 6 and more. Here, we use the high density and the wide coverage of the Japanese Global Positioning System (GPS) network GEONET to image the ionosphere just after the main shock. We describe ionospheric perturbations with exceptional extension in amplitude and duration. As already seen in earlier events, a first intense signal is observed about 10 minutes after the seismic rupture; the first response consists in two modes: one propagating beyond 3 km/s and the other at nearly 1 km/s. A further analysis of TEC time series of the latter mode near the source shows the typical frequencies of acoustic resonance. Beyond 400 km from the source, both the tsunami induced gravity wave and a third mode are imaged, the latter for the first time. We show that the pattern of this slow (225 m/s ± 10 m/s) and long period gravity wave (1.8 ± 0.2 mHz) is most visible in the North-West of the epicentral area. This description is corroborated by a computation of the normal modes of the solid Earth-atmosphere system.001E001E01D220DIonosphère01ionosphere01Ionosfera01Séisme02earthquakes02Sismo02Perturbation ionosphérique03Ionospheric disturbance03Perturbación ionosférica03Système GPS04Global Positioning System04Contenu total électron05Total electron content05Contenido total electrón05Anomalie06anomalies06Anomalía06Densité élevée07High density07Densidad elevada07Réseau08networks08Secousse principale09mainshocks09Extension10extension10Extensión10Amplitude11amplitude11Amplitud11Durée12duration12Rupture13rupture13Ruptura13Série temporelle14Time series14Serie temporal14Fréquence15frequency15Frecuencia15Résonance16resonance16Resonancia16Tsunami17tsunamis17Tsunami17Onde gravité18Gravity wave18Onda gravedad18Mode propre19Eigenmode19Modo propio19Atmosphère terrestre20Earth atmosphere20Atmósfera terrestre20Risque naturel21Natural hazards21Riesgo natural21Côte Pacifique Etats UnisNG61Pacific CoastNG61Costa Pacífico Estados UnidosNG61TohokuNG62TohokuNG62MarchesNG63Marches ItalyNG63MarcasNG63Etats Unis OuestNGWestern U.S.NGEstados Unidos OesteNGEtats UnisNGUnited StatesNGEstados UnidosNGAmérique du NordNorth AmericaAmerica del norteHonshuNGHonshuNGHonshuNGJaponNGJapanNGJapónNGExtrême OrientNGFar EastNGExtremo OrienteNGAsie564Asia564Asia564ItalieNGItalyNGItaliaNGEurope SudNGSouthern EuropeNGEuropa SurNGEurope564Europe564Europa564051OTOOTOPASCAL 12-0071081 INISTThe resonant response of the ionosphere imaged after the 2011 off the Pacific coast of Tohoku EarthquakeROLLAND (Lucie M.); LOGNONNE (Philippe); ASTAFYEVA (Elvira); ALAM KHERANI (E.); KOBAYASHI (Naoki); MANN (Michele); MUNEKANE (Hiroshi); KANAMORI (Hiroo); YOMOGIDA (Kiyoshi)Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR 7154 CNRS/94100 Saint-Maur/France (1 aut., 2 aut., 3 aut., 6 aut.); Instituto Nacional de Pesquisais Espaciais (INPE), São Jose dos Campos, São Paulo/12227010/Brésil (4 aut.); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku/Sagamihara City, Kanagawa 252-5210/Japon (5 aut.); Geospatial Information Authorithy of Japan, 1 Kitasato/Tsukuba 305-0811/Japon (7 aut.); California Institute of Technology/Etats-Unis (1 aut.); Hokkaido University/Japon (2 aut.)
Publication en série; Niveau analytique
Earth, planets and space; ISSN 1343-8832; Japon; Da. 2011; Vol. 63; No. 7; Pp. 853-857; Bibl. 3/4 p.AnglaisWe provide here a preliminary analysis of the ionospheric perturbations observed after the 11 March 2011 Tohoku Earthquake using a GPS-derived Total Electron Content (TEC) technique. Such anomalies are routinely observed after seismic events of magnitude Mw = 6 and more. Here, we use the high density and the wide coverage of the Japanese Global Positioning System (GPS) network GEONET to image the ionosphere just after the main shock. We describe ionospheric perturbations with exceptional extension in amplitude and duration. As already seen in earlier events, a first intense signal is observed about 10 minutes after the seismic rupture; the first response consists in two modes: one propagating beyond 3 km/s and the other at nearly 1 km/s. A further analysis of TEC time series of the latter mode near the source shows the typical frequencies of acoustic resonance. Beyond 400 km from the source, both the tsunami induced gravity wave and a third mode are imaged, the latter for the first time. We show that the pattern of this slow (225 m/s ± 10 m/s) and long period gravity wave (1.8 ± 0.2 mHz) is most visible in the North-West of the epicentral area. This description is corroborated by a computation of the normal modes of the solid Earth-atmosphere system.001E; 001E01D; 220DIonosphère; Séisme; Perturbation ionosphérique; Système GPS; Contenu total électron; Anomalie; Densité élevée; Réseau; Secousse principale; Extension; Amplitude; Durée; Rupture; Série temporelle; Fréquence; Résonance; Tsunami; Onde gravité; Mode propre; Atmosphère terrestre; Risque naturel; Côte Pacifique Etats Unis; Tohoku; MarchesEtats Unis Ouest; Etats Unis; Amérique du Nord; Honshu; Japon; Extrême Orient; Asie; Italie; Europe Sud; Europeionosphere; earthquakes; Ionospheric disturbance; Global Positioning System; Total electron content; anomalies; High density; networks; mainshocks; extension; amplitude; duration; rupture; Time series; frequency; resonance; tsunamis; Gravity wave; Eigenmode; Earth atmosphere; Natural hazards; Pacific Coast; Tohoku; Marches ItalyWestern U.S.; United States; North America; Honshu; Japan; Far East; Asia; Italy; Southern Europe; EuropeIonosfera; Sismo; Perturbación ionosférica; Contenido total electrón; Anomalía; Densidad elevada; Extensión; Amplitud; Ruptura; Serie temporal; Frecuencia; Resonancia; Tsunami; Onda gravedad; Modo propio; Atmósfera terrestre; Riesgo natural; Costa Pacífico Estados Unidos; MarcasINIST-2774.35400050884536062012-0071081 001B78 Inverse problem for the heat equation and the Schrödinger equation on a treeLiviu I. IgnatInstitute of Mathematics 'Simion Stoilow' of the Romanian Academy, 21 Calea Grivitei Street010702 BucharestROU1 aut.BCAM - Basque Center for Applied Mathematics, Bizkaia Technology Park. Building 500 Derio, Basque CountryESP1 aut.Ademir F. PazotoInstituto de Matemática, Universidade Federal do Rio de Janeiro, PO Box 68530, CEP 21945-970Rio de JaneiroBRA2 aut.Lionel RosierInstitut Elie Cartan, UMR 7502 UHP/CNRS/INRIA, BP 7023954506 Vandœuvre-lès-NancyFRA3 aut.12-00711012012PASCAL 12-0071101 INISTPascal:12-0071101000D180266-5611Inverse probl.Inverse problemsHeat equationInverse problemsSchroedinger equationProblème inverseEquation chaleurEquation Schrödinger
In this paper, we establish global Carleman estimates for the heat and Schrödinger equations on a network. The heat equation is considered on a general tree and the Schrödinger equation on a star-shaped tree. The Carleman inequalities are used to prove the Lipschitz stability for an inverse problem consisting in retrieving a stationary potential in the heat (resp. Schrödinger) equation from boundary measurements.
0266-5611INVPETInverse probl.281Inverse problem for the heat equation and the Schrödinger equation on a treeIGNAT (Liviu I.)PAZOTO (Ademir F.)ROSIER (Lionel)Institute of Mathematics 'Simion Stoilow' of the Romanian Academy, 21 Calea Grivitei Street010702 BucharestROU1 aut.BCAM - Basque Center for Applied Mathematics, Bizkaia Technology Park. Building 500 Derio, Basque CountryESP1 aut.Instituto de Matemática, Universidade Federal do Rio de Janeiro, PO Box 68530, CEP 21945-970Rio de JaneiroBRA2 aut.Institut Elie Cartan, UMR 7502 UHP/CNRS/INRIA, BP 7023954506 Vandœuvre-lès-NancyFRA3 aut.015011.1-015011.302012ENGINIST206793540005060949501100000© 2012 INIST-CNRS. All rights reserved.39 ref.12-0071101PAInverse problemsGBRIn this paper, we establish global Carleman estimates for the heat and Schrödinger equations on a network. The heat equation is considered on a general tree and the Schrödinger equation on a star-shaped tree. The Carleman inequalities are used to prove the Lipschitz stability for an inverse problem consisting in retrieving a stationary potential in the heat (resp. Schrödinger) equation from boundary measurements.001B00Problème inverse26Inverse problems26Equation chaleur27Heat equation27Ecuación calor27Equation Schrödinger28Schroedinger equation28051OTOOTOPASCAL 12-0071101 INISTInverse problem for the heat equation and the Schrödinger equation on a treeIGNAT (Liviu I.); PAZOTO (Ademir F.); ROSIER (Lionel)Institute of Mathematics 'Simion Stoilow' of the Romanian Academy, 21 Calea Grivitei Street/010702 Bucharest/Roumanie (1 aut.); BCAM - Basque Center for Applied Mathematics, Bizkaia Technology Park. Building 500 Derio, Basque Country/Espagne (1 aut.); Instituto de Matemática, Universidade Federal do Rio de Janeiro, PO Box 68530, CEP 21945-970/Rio de Janeiro/Brésil (2 aut.); Institut Elie Cartan, UMR 7502 UHP/CNRS/INRIA, BP 70239/54506 Vandœuvre-lès-Nancy/France (3 aut.)
Publication en série; Niveau analytique
Inverse problems; ISSN 0266-5611; Coden INVPET; Royaume-Uni; Da. 2012; Vol. 28; No. 1; 015011.1-015011.30; Bibl. 39 ref.AnglaisIn this paper, we establish global Carleman estimates for the heat and Schrödinger equations on a network. The heat equation is considered on a general tree and the Schrödinger equation on a star-shaped tree. The Carleman inequalities are used to prove the Lipschitz stability for an inverse problem consisting in retrieving a stationary potential in the heat (resp. Schrödinger) equation from boundary measurements.001B00Problème inverse; Equation chaleur; Equation SchrödingerInverse problems; Heat equation; Schroedinger equationEcuación calorINIST-20679.35400050609495011012-0071101 001B79 A novel microdeletion syndrome at 3q13.31 characterised by developmental delay, postnatal overgrowth, hypoplastic male genitals, and characteristic facial featuresA.-M. MolinDepartment of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala UniversityUppsalaSWE1 aut.34 aut.35 aut.J. AndrieuxInstitut de Génétique Médicale, Hopital Jeanne de FlandreCHRU de LilleFRA2 aut.D. A. KoolenDepartment of Human Genetics, Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical CentreNijmegenNLD3 aut.9 aut.24 aut.V. MalanDépartement de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.M. CarellaMedical Genetics Unit IRCCS Casa Sollievo della SofferenzaSan Giovanni Rotondo (FGITA5 aut.22 aut.33 aut.L. ColleauxDépartement de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.V. Cormier-DaireDépartement de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.A. DavidCHU Nantes, Service de genetique medicaleNantesFRA8 aut.17 aut.N. De LeeuwDepartment of Human Genetics, Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical CentreNijmegenNLD3 aut.9 aut.24 aut.B. DelobelCentre de Génétique Chromosomique, GHICLLilleFRA10 aut.11 aut.B. Duban-BeduCentre de Génétique Chromosomique, GHICLLilleFRA10 aut.11 aut.R. FischettoUnità Operativa Malattie Metaboliche Genetica Medica, P.O. Giovanni XXIII, A.O.U. Policlinico ConsorzialeBariITA12 aut.23 aut.F. FlinterDepartment of Clinical Genetics, Guy's & St Thomas' NHS Foundation TrustLondonGBR13 aut.S. KjaergaardDepartment of Clinical Genetics, University Hospital, RigshospitaletCopenhagenDNK14 aut.F. KokDepartment of Neurology, Academic Hospital, University of São PauloBRA15 aut.A. C. KrepischiDepartment of Evolutionary Biology, Institute of Biosciences, University of São PauloBRA16 aut.29 aut.A.C. Camargo HospitalSão PauloBRA16 aut.C. Le CaignecCHU Nantes, Service de genetique medicaleNantesFRA8 aut.17 aut.Inserm, UMR S915, I'institut du thoraxNantesFRA17 aut.C. Mackie OgilvieDepartment of Cytogenetics, Guy's & St Thomas' NHS Foundation TrustLondonGBR18 aut.S. MaiaServiço de Genética Médica, Centro Hospitalar de CoimbraCoimbraPRT19 aut.30 aut.M. Mathieu-DramardService de Génétique Clinique, CHU d'AmiensFRA20 aut.A. MunnichDépartement de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.O. PalumboMedical Genetics Unit IRCCS Casa Sollievo della SofferenzaSan Giovanni Rotondo (FGITA5 aut.22 aut.33 aut.F. PapadiaUnità Operativa Malattie Metaboliche Genetica Medica, P.O. Giovanni XXIII, A.O.U. Policlinico ConsorzialeBariITA12 aut.23 aut.R. PfundtDepartment of Human Genetics, Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical CentreNijmegenNLD3 aut.9 aut.24 aut.W. ReardonOur Lady's Hospital for Sick ChildrenCrumlin, DublinIRL25 aut.A. ReceveurLaboratoire de Cytogenetique, CHU d'AmiensFRA26 aut.M. RioDépartement de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.L. Ronsbro DarlingBigshospitalet & Roskilde, Departments of PaediatricsDNK28 aut.C. RosenbergDepartment of Evolutionary Biology, Institute of Biosciences, University of São PauloBRA16 aut.29 aut.J. SaServiço de Genética Médica, Centro Hospitalar de CoimbraCoimbraPRT19 aut.30 aut.L. ValleeService de Neuropédiatrie, CHRU de LilleFRA31 aut.C. Vincent-DelormeService de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU de LilleFRA32 aut.L. ZelanteMedical Genetics Unit IRCCS Casa Sollievo della SofferenzaSan Giovanni Rotondo (FGITA5 aut.22 aut.33 aut.M.-L. BondesonDepartment of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala UniversityUppsalaSWE1 aut.34 aut.35 aut.G. AnnerenDepartment of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala UniversityUppsalaSWE1 aut.34 aut.35 aut.12-00712462012PASCAL 12-0071246 INISTPascal:12-0071246000D170022-2593J. med. genet.Journal of medical geneticsCharacteristicsDevelopmental disorderFaceGeneticsGenital systemHumanHypoplasiaMaleMicrodeletionOvergrowth syndromePostnatalTrouble du développementSyndrome de croissance excessivePostnatalHypoplasieMâleAppareil génitalCaractéristiquesFaceGénétiqueHommeMicrodélétion
Background Congenital deletions affecting 3q11q23 have rarely been reported and only five cases have been molecularly characterised. Genotype-phenotype correlation has been hampered by the variable sizes and breakpoints of the deletions. In this study, 14 novel patients with deletions in 3q11q23 were investigated and compared with 13 previously reported patients. Methods Clinical data were collected from 14 novel patients that had been investigated by high resolution microarray techniques. Molecular investigation and updated clinical information of one cytogenetically previously reported patient were also included. Results The molecular investigation identified deletions in the region 3q12.3q21.3 with different boundaries and variable sizes. The smallest studied deletion was 580 kb, located in 3q13.31. Genotype-phenotype comparison in 24 patients sharing this shortest region of overlapping deletion revealed several common major characteristics including significant developmental delay, muscular hypotonia, a high arched palate, and recognisable facial features including a short philtrum and protruding lips. Abnormal genitalia were found in the majority of males, several having micropenis. Finally, a postnatal growth pattern above the mean was apparent. The 580 kb deleted region includes five RefSeq genes and two of them are strong candidate genes for the developmental delay: DRD3 and ZBTB20. Conclusion A newly recognised 3q13.31 microdeletion syndrome is delineated which is of diagnostic and prognostic value. Furthermore, two genes are suggested to be responsible for the main phenotype.
0022-2593JMDGAEJ. med. genet.492A novel microdeletion syndrome at 3q13.31 characterised by developmental delay, postnatal overgrowth, hypoplastic male genitals, and characteristic facial featuresMOLIN (A.-M.)ANDRIEUX (J.)KOOLEN (D. A.)MALAN (V.)CARELLA (M.)COLLEAUX (L.)CORMIER-DAIRE (V.)DAVID (A.)DE LEEUW (N.)DELOBEL (B.)DUBAN-BEDU (B.)FISCHETTO (R.)FLINTER (F.)KJAERGAARD (S.)KOK (F.)KREPISCHI (A. C.)LE CAIGNEC (C.)MACKIE OGILVIE (C.)MAIA (S.)MATHIEU-DRAMARD (M.)MUNNICH (A.)PALUMBO (O.)PAPADIA (F.)PFUNDT (R.)REARDON (W.)RECEVEUR (A.)RIO (M.)RONSBRO DARLING (L.)ROSENBERG (C.)SA (J.)VALLEE (L.)VINCENT-DELORME (C.)ZELANTE (L.)BONDESON (M.-L.)ANNEREN (G.)Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala UniversityUppsalaSWE1 aut.34 aut.35 aut.Institut de Génétique Médicale, Hopital Jeanne de FlandreCHRU de LilleFRA2 aut.Department of Human Genetics, Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical CentreNijmegenNLD3 aut.9 aut.24 aut.Département de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants MaladesParisFRA4 aut.6 aut.7 aut.21 aut.27 aut.Medical Genetics Unit IRCCS Casa Sollievo della SofferenzaSan Giovanni Rotondo (FGITA5 aut.22 aut.33 aut.CHU Nantes, Service de genetique medicaleNantesFRA8 aut.17 aut.Centre de Génétique Chromosomique, GHICLLilleFRA10 aut.11 aut.Unità Operativa Malattie Metaboliche Genetica Medica, P.O. Giovanni XXIII, A.O.U. Policlinico ConsorzialeBariITA12 aut.23 aut.Department of Clinical Genetics, Guy's & St Thomas' NHS Foundation TrustLondonGBR13 aut.Department of Clinical Genetics, University Hospital, RigshospitaletCopenhagenDNK14 aut.Department of Neurology, Academic Hospital, University of São PauloBRA15 aut.Department of Evolutionary Biology, Institute of Biosciences, University of São PauloBRA16 aut.29 aut.A.C. Camargo HospitalSão PauloBRA16 aut.Inserm, UMR S915, I'institut du thoraxNantesFRA17 aut.Department of Cytogenetics, Guy's & St Thomas' NHS Foundation TrustLondonGBR18 aut.Serviço de Genética Médica, Centro Hospitalar de CoimbraCoimbraPRT19 aut.30 aut.Service de Génétique Clinique, CHU d'AmiensFRA20 aut.Our Lady's Hospital for Sick ChildrenCrumlin, DublinIRL25 aut.Laboratoire de Cytogenetique, CHU d'AmiensFRA26 aut.Bigshospitalet & Roskilde, Departments of PaediatricsDNK28 aut.Service de Neuropédiatrie, CHRU de LilleFRA31 aut.Service de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU de LilleFRA32 aut.104-1092012ENGINIST121253540005067014100700000© 2012 INIST-CNRS. All rights reserved.38 ref.12-0071246PAJournal of medical geneticsGBRBackground Congenital deletions affecting 3q11q23 have rarely been reported and only five cases have been molecularly characterised. Genotype-phenotype correlation has been hampered by the variable sizes and breakpoints of the deletions. In this study, 14 novel patients with deletions in 3q11q23 were investigated and compared with 13 previously reported patients. Methods Clinical data were collected from 14 novel patients that had been investigated by high resolution microarray techniques. Molecular investigation and updated clinical information of one cytogenetically previously reported patient were also included. Results The molecular investigation identified deletions in the region 3q12.3q21.3 with different boundaries and variable sizes. The smallest studied deletion was 580 kb, located in 3q13.31. Genotype-phenotype comparison in 24 patients sharing this shortest region of overlapping deletion revealed several common major characteristics including significant developmental delay, muscular hypotonia, a high arched palate, and recognisable facial features including a short philtrum and protruding lips. Abnormal genitalia were found in the majority of males, several having micropenis. Finally, a postnatal growth pattern above the mean was apparent. The 580 kb deleted region includes five RefSeq genes and two of them are strong candidate genes for the developmental delay: DRD3 and ZBTB20. Conclusion A newly recognised 3q13.31 microdeletion syndrome is delineated which is of diagnostic and prognostic value. Furthermore, two genes are suggested to be responsible for the main phenotype.002A04002A07002B23ATrouble du développement01Developmental disorder01Trastorno desarrollo01Syndrome de croissance excessiveNM02Overgrowth syndromeNM02Crecimiento excesivoNM02Postnatal09Postnatal09Postnatal09Hypoplasie10Hypoplasia10Hipoplasia10Mâle11Male11Macho11Appareil génital12Genital system12Aparato genital12Caractéristiques13Characteristics13Características13Face14Face14Cara14Génétique15Genetics15Genética15Homme16Human16Hombre16MicrodélétionCD96MicrodeletionCD96MicrodeletionCD96Malformation37Malformation37Malformación37051OTOOTOPASCAL 12-0071246 INISTA novel microdeletion syndrome at 3q13.31 characterised by developmental delay, postnatal overgrowth, hypoplastic male genitals, and characteristic facial featuresMOLIN (A.-M.); ANDRIEUX (J.); KOOLEN (D. A.); MALAN (V.); CARELLA (M.); COLLEAUX (L.); CORMIER-DAIRE (V.); DAVID (A.); DE LEEUW (N.); DELOBEL (B.); DUBAN-BEDU (B.); FISCHETTO (R.); FLINTER (F.); KJAERGAARD (S.); KOK (F.); KREPISCHI (A. C.); LE CAIGNEC (C.); MACKIE OGILVIE (C.); MAIA (S.); MATHIEU-DRAMARD (M.); MUNNICH (A.); PALUMBO (O.); PAPADIA (F.); PFUNDT (R.); REARDON (W.); RECEVEUR (A.); RIO (M.); RONSBRO DARLING (L.); ROSENBERG (C.); SA (J.); VALLEE (L.); VINCENT-DELORME (C.); ZELANTE (L.); BONDESON (M.-L.); ANNEREN (G.)Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University/Uppsala/Suède (1 aut., 34 aut., 35 aut.); Institut de Génétique Médicale, Hopital Jeanne de Flandre/CHRU de Lille/France (2 aut.); Department of Human Genetics, Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical Centre/Nijmegen/Pays-Bas (3 aut., 9 aut., 24 aut.); Département de Génétique et INSERM U781, Université Paris Descartes, Hôpital, Necker-Enfants Malades/Paris/France (4 aut., 6 aut., 7 aut., 21 aut., 27 aut.); Medical Genetics Unit IRCCS Casa Sollievo della Sofferenza/San Giovanni Rotondo (FG/Italie (5 aut., 22 aut., 33 aut.); CHU Nantes, Service de genetique medicale/Nantes/France (8 aut., 17 aut.); Centre de Génétique Chromosomique, GHICL/Lille/France (10 aut., 11 aut.); Unità Operativa Malattie Metaboliche Genetica Medica, P.O. Giovanni XXIII, A.O.U. Policlinico Consorziale/Bari/Italie (12 aut., 23 aut.); Department of Clinical Genetics, Guy's & St Thomas' NHS Foundation Trust/London/Royaume-Uni (13 aut.); Department of Clinical Genetics, University Hospital, Rigshospitalet/Copenhagen/Danemark (14 aut.); Department of Neurology, Academic Hospital, University of São Paulo/Brésil (15 aut.); Department of Evolutionary Biology, Institute of Biosciences, University of São Paulo/Brésil (16 aut., 29 aut.); A.C. Camargo Hospital/São Paulo/Brésil (16 aut.); Inserm, UMR S915, I'institut du thorax/Nantes/France (17 aut.); Department of Cytogenetics, Guy's & St Thomas' NHS Foundation Trust/London/Royaume-Uni (18 aut.); Serviço de Genética Médica, Centro Hospitalar de Coimbra/Coimbra/Portugal (19 aut., 30 aut.); Service de Génétique Clinique, CHU d'Amiens/France (20 aut.); Our Lady's Hospital for Sick Children/Crumlin, Dublin/Irlande (25 aut.); Laboratoire de Cytogenetique, CHU d'Amiens/France (26 aut.); Bigshospitalet & Roskilde, Departments of Paediatrics/Danemark (28 aut.); Service de Neuropédiatrie, CHRU de Lille/France (31 aut.); Service de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU de Lille/France (32 aut.)
Publication en série; Niveau analytique
Journal of medical genetics; ISSN 0022-2593; Coden JMDGAE; Royaume-Uni; Da. 2012; Vol. 49; No. 2; Pp. 104-109; Bibl. 38 ref.AnglaisBackground Congenital deletions affecting 3q11q23 have rarely been reported and only five cases have been molecularly characterised. Genotype-phenotype correlation has been hampered by the variable sizes and breakpoints of the deletions. In this study, 14 novel patients with deletions in 3q11q23 were investigated and compared with 13 previously reported patients. Methods Clinical data were collected from 14 novel patients that had been investigated by high resolution microarray techniques. Molecular investigation and updated clinical information of one cytogenetically previously reported patient were also included. Results The molecular investigation identified deletions in the region 3q12.3q21.3 with different boundaries and variable sizes. The smallest studied deletion was 580 kb, located in 3q13.31. Genotype-phenotype comparison in 24 patients sharing this shortest region of overlapping deletion revealed several common major characteristics including significant developmental delay, muscular hypotonia, a high arched palate, and recognisable facial features including a short philtrum and protruding lips. Abnormal genitalia were found in the majority of males, several having micropenis. Finally, a postnatal growth pattern above the mean was apparent. The 580 kb deleted region includes five RefSeq genes and two of them are strong candidate genes for the developmental delay: DRD3 and ZBTB20. Conclusion A newly recognised 3q13.31 microdeletion syndrome is delineated which is of diagnostic and prognostic value. Furthermore, two genes are suggested to be responsible for the main phenotype.002A04; 002A07; 002B23ATrouble du développement; Syndrome de croissance excessive; Postnatal; Hypoplasie; Mâle; Appareil génital; Caractéristiques; Face; Génétique; Homme; MicrodélétionMalformationDevelopmental disorder; Overgrowth syndrome; Postnatal; Hypoplasia; Male; Genital system; Characteristics; Face; Genetics; Human; MicrodeletionMalformationTrastorno desarrollo; Crecimiento excesivo; Postnatal; Hipoplasia; Macho; Aparato genital; Características; Cara; Genética; Hombre; MicrodeletionINIST-12125.35400050670141007012-0071246 001B80 Percolated non-Newtonian flow for silicone obtained from exfoliated bioinorganic layered double hydroxide intercalated with amino acidJose Francisco Naime FilhoDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900CEP:14040-901, Ribeirão Preto-SPBRA1 aut.4 aut.Fabrice LerouxLaboratorie des Matériaux Inorganiques, UMR CNRS 6002, Universite Blaise Pascal63177, AubièreFRA2 aut.Vincent VerneyLaboratoire de Photochimie Moléculaire et Macromoléculaire UMR CNRS 6505, Université Blaise Pascal63177, AubièreFRA3 aut.Joao Barros ValimDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900CEP:14040-901, Ribeirão Preto-SPBRA1 aut.4 aut.12-00734022012PASCAL 12-0073402 INISTPascal:12-0073402000D160169-1317Appl. clay sci.Applied clay scienceX-raysabsorptionamino acidsanionscombustionexfoliationflowgelshydrotalcitehydroxidesinterfacesloadinglow frequencymaterialspercolationpolymersprotectionradiationshearstabilityviscosityEcoulementHydroxydeAcide aminéHydrotalciteMatériauRayon XDesquamationGelCisaillementViscositéBasse fréquencePercolationChargementInterfacePolymèreAnionRayonnementAbsorptionProtectionStabilitéCombustion
A simple and scalable procedure was used to obtain thin, stable, homogeneous, and easy-to-handle films composed of silicone derived from dimethicones containing dispersed hydrotalcite-type materials previously organo-modified with amino acids. The absence of the typical X-ray pattern of the bioinorganic LDH filler suggested an exfoliation process that was further indirectly evidenced by a drastic change in the rheological behavior, which turned from a quasi-Newtonian behavior for the silicone free of LDH filler to an extensive developed gel-like structure for the nanocomposite derivatives. Visualized by the shear-thinning exponent of the complex viscosity in the low-frequency range, the percolation threshold was evident for filler loading as low as <5 w/w%, suggesting the presence of a largely developed interface between the filler and the polymer. The increase of more than one order of magnitude in viscosity was explained by the rather strong attrition phenomenon between the tethered amino acid anions and the silicone chains. UVB radiation absorption profiles make such bioinorganic polymer nanocomposites potentially applicable in skin protection. Thermogravimetric analysis revealed significant improvement in the thermal stability, especially in the final step of the polymer combustion, thus underlining the role of the hybrid material as a thermal retardant agent.
0169-1317ACLSERAppl. clay sci.55Percolated non-Newtonian flow for silicone obtained from exfoliated bioinorganic layered double hydroxide intercalated with amino acidNAIME FILHO (Jose Francisco)LEROUX (Fabrice)VERNEY (Vincent)BARROS VALIM (Joao)Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900CEP:14040-901, Ribeirão Preto-SPBRA1 aut.4 aut.Laboratorie des Matériaux Inorganiques, UMR CNRS 6002, Universite Blaise Pascal63177, AubièreFRA2 aut.Laboratoire de Photochimie Moléculaire et Macromoléculaire UMR CNRS 6505, Université Blaise Pascal63177, AubièreFRA3 aut.88-932012ENGINIST208593540005086443901200000© 2012 INIST-CNRS. All rights reserved.1/2 p.12-0073402PAApplied clay scienceGBRA simple and scalable procedure was used to obtain thin, stable, homogeneous, and easy-to-handle films composed of silicone derived from dimethicones containing dispersed hydrotalcite-type materials previously organo-modified with amino acids. The absence of the typical X-ray pattern of the bioinorganic LDH filler suggested an exfoliation process that was further indirectly evidenced by a drastic change in the rheological behavior, which turned from a quasi-Newtonian behavior for the silicone free of LDH filler to an extensive developed gel-like structure for the nanocomposite derivatives. Visualized by the shear-thinning exponent of the complex viscosity in the low-frequency range, the percolation threshold was evident for filler loading as low as <5 w/w%, suggesting the presence of a largely developed interface between the filler and the polymer. The increase of more than one order of magnitude in viscosity was explained by the rather strong attrition phenomenon between the tethered amino acid anions and the silicone chains. UVB radiation absorption profiles make such bioinorganic polymer nanocomposites potentially applicable in skin protection. Thermogravimetric analysis revealed significant improvement in the thermal stability, especially in the final step of the polymer combustion, thus underlining the role of the hybrid material as a thermal retardant agent.001E01A02220A02Ecoulement01flow01HydroxydeNZ02hydroxidesNZ02HidróxidoNZ02Acide aminé03amino acids03Aminoácido03HydrotalciteNZ04hydrotalciteNZ04Matériau05materials05Rayon X06X-rays06Rayos X06Desquamation07exfoliation07Exfoliación07Gel08gels08Cisaillement09shear09Cizalladura09Viscosité10viscosity10Viscosidad10Basse fréquence11low frequency11Percolation12percolation12Percolación12Chargement13loading13Cargamento13Interface14interfaces14Interfase14Polymère15polymers15Anion16anions16Anión16Rayonnement17radiation17Radiación17Absorption18absorption18Absorción18Protection19protection19Stabilité20stability20Estabilidad20Combustion21combustion21Combustión21OxydeNZoxidesNZÓxidoNZCarbonateNZcarbonatesNZCarbonatoNZ051OTOOTOPASCAL 12-0073402 INISTPercolated non-Newtonian flow for silicone obtained from exfoliated bioinorganic layered double hydroxide intercalated with amino acidNAIME FILHO (Jose Francisco); LEROUX (Fabrice); VERNEY (Vincent); BARROS VALIM (Joao)Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900/CEP:14040-901, Ribeirão Preto-SP/Brésil (1 aut., 4 aut.); Laboratorie des Matériaux Inorganiques, UMR CNRS 6002, Universite Blaise Pascal/63177, Aubière/France (2 aut.); Laboratoire de Photochimie Moléculaire et Macromoléculaire UMR CNRS 6505, Université Blaise Pascal/63177, Aubière/France (3 aut.)
Publication en série; Niveau analytique
Applied clay science; ISSN 0169-1317; Coden ACLSER; Royaume-Uni; Da. 2012; Vol. 55; Pp. 88-93; Bibl. 1/2 p.AnglaisA simple and scalable procedure was used to obtain thin, stable, homogeneous, and easy-to-handle films composed of silicone derived from dimethicones containing dispersed hydrotalcite-type materials previously organo-modified with amino acids. The absence of the typical X-ray pattern of the bioinorganic LDH filler suggested an exfoliation process that was further indirectly evidenced by a drastic change in the rheological behavior, which turned from a quasi-Newtonian behavior for the silicone free of LDH filler to an extensive developed gel-like structure for the nanocomposite derivatives. Visualized by the shear-thinning exponent of the complex viscosity in the low-frequency range, the percolation threshold was evident for filler loading as low as <5 w/w%, suggesting the presence of a largely developed interface between the filler and the polymer. The increase of more than one order of magnitude in viscosity was explained by the rather strong attrition phenomenon between the tethered amino acid anions and the silicone chains. UVB radiation absorption profiles make such bioinorganic polymer nanocomposites potentially applicable in skin protection. Thermogravimetric analysis revealed significant improvement in the thermal stability, especially in the final step of the polymer combustion, thus underlining the role of the hybrid material as a thermal retardant agent.001E01A02; 220A02Ecoulement; Hydroxyde; Acide aminé; Hydrotalcite; Matériau; Rayon X; Desquamation; Gel; Cisaillement; Viscosité; Basse fréquence; Percolation; Chargement; Interface; Polymère; Anion; Rayonnement; Absorption; Protection; Stabilité; CombustionOxyde; Carbonateflow; hydroxides; amino acids; hydrotalcite; materials; X-rays; exfoliation; gels; shear; viscosity; low frequency; percolation; loading; interfaces; polymers; anions; radiation; absorption; protection; stability; combustionoxides; carbonatesHidróxido; Aminoácido; Rayos X; Exfoliación; Cizalladura; Viscosidad; Percolación; Cargamento; Interfase; Anión; Radiación; Absorción; Estabilidad; CombustiónINIST-20859.35400050864439012012-0073402 001B81 A New Triangulation-Like Technique for the Evaluation of the Refractive Index Structure Constant (C<sup>2</sup><sub>n</sub>) in Free-Space Optical LinksVinicius N. H. SilvaTelecom-Bretagne, Optics Department, Brest29200 BretagneFRA1 aut.Andrés P. L. BarberoLaboratório de Comunicações Ópticas, Departamento de Engenharia de Telecomunicações, Universidade Federal FluminenseNiterói 24.210-240BRA2 aut.3 aut.Ricardo M. RibeiroLaboratório de Comunicações Ópticas, Departamento de Engenharia de Telecomunicações, Universidade Federal FluminenseNiterói 24.210-240BRA2 aut.3 aut.12-00752232011PASCAL 12-0075223 INISTPascal:12-0075223000D150733-8724J. lightwave technol.Journal of lightwave technologyAtmospheric turbulenceCost analysisCost loweringEconomic aspectFree space opticsFree space propagationHumidityIntegrated circuitMathematical modelMonitoringOptical linksOptical pathOptical telecommunicationPhotodetectorRISC processorReceiverRefraction indexTriangulationWireless telecommunicationTriangulationIndice réfractionOptique sans filPropagation espace libreLiaison optiqueChemin optiqueTurbulence atmosphériqueHumiditéDiminution coûtAspect économiqueAnalyse coûtPhotodétecteurRécepteurModèle mathématiqueTélécommunication optiqueMonitorageProcesseur RISCTélécommunication sans filCircuit intégré
A light beam propagating through the atmosphere has its amplitude, phase, and propagation direction changed along the optical path due to atmospheric turbulence. This effect is caused by the randomness of the air refractive index and depends on the local temperature, pressure, and humidity. The physical parameter that quantifies the turbulence strength is well known in the literature as the refractive index structure constant (C2n). In this paper, a simple and low-cost technique based on a triangulation-like method to measure the C2n is presented for the first time to the best knowledge of the authors. Through a novel device comprised of three photodetectors in a triangle-shaped array placed on the receiver plane, it is possible, after power measurements and applying a developed mathematical model, to obtain precisely the position of the beam spot. Therefore, calculates the C2n and evaluates the atmospheric turbulence strength. Furthermore, the technique is useful to check the suitability of a free-space optical (FSO) link in a specific geographic region by monitoring the local turbulence. Also, the device will be useful to improve the deployment and maintenance of FSO systems.
0733-8724JLTEDGJ. lightwave technol.2921-24A New Triangulation-Like Technique for the Evaluation of the Refractive Index Structure Constant (C2n) in Free-Space Optical LinksSILVA (Vinicius N. H.)BARBERO (Andrés P. L.)RIBEIRO (Ricardo M.)Telecom-Bretagne, Optics Department, Brest29200 BretagneFRA1 aut.Laboratório de Comunicações Ópticas, Departamento de Engenharia de Telecomunicações, Universidade Federal FluminenseNiterói 24.210-240BRA2 aut.3 aut.3603-36102011ENGINIST201423540005088535005500000© 2012 INIST-CNRS. All rights reserved.28 ref.12-0075223PAJournal of lightwave technologyUSAA light beam propagating through the atmosphere has its amplitude, phase, and propagation direction changed along the optical path due to atmospheric turbulence. This effect is caused by the randomness of the air refractive index and depends on the local temperature, pressure, and humidity. The physical parameter that quantifies the turbulence strength is well known in the literature as the refractive index structure constant (C2n). In this paper, a simple and low-cost technique based on a triangulation-like method to measure the C2n is presented for the first time to the best knowledge of the authors. Through a novel device comprised of three photodetectors in a triangle-shaped array placed on the receiver plane, it is possible, after power measurements and applying a developed mathematical model, to obtain precisely the position of the beam spot. Therefore, calculates the C2n and evaluates the atmospheric turbulence strength. Furthermore, the technique is useful to check the suitability of a free-space optical (FSO) link in a specific geographic region by monitoring the local turbulence. Also, the device will be useful to improve the deployment and maintenance of FSO systems.001D04B08B001D03F15Triangulation01Triangulation01Triangulación01Indice réfraction02Refraction index02Indice refracción02Optique sans fil03Free space optics03Optica inalámbrica03Propagation espace libre04Free space propagation04Liaison optique05Optical links05Chemin optique06Optical path06Alcance óptico06Turbulence atmosphérique07Atmospheric turbulence07Turbulencia atmosférica07Humidité08Humidity08Humedad08Diminution coût09Cost lowering09Reducción costes09Aspect économique10Economic aspect10Aspecto económico10Analyse coût11Cost analysis11Análisis costo11Photodétecteur12Photodetector12Fotodetector12Récepteur13Receiver13Receptor13Modèle mathématique14Mathematical model14Modelo matemático14Télécommunication optique15Optical telecommunication15Telecomunicación óptica15Monitorage16Monitoring16Monitoreo16Processeur RISC17RISC processor17Procesador RISC17Télécommunication sans fil46Wireless telecommunication46Telecomunicación sin hilo46Circuit intégré47Integrated circuit47Circuito integrado47Dispositif optoélectronique18Optoelectronic device18Dispositivo optoelectrónico18058OTOOTOPASCAL 12-0075223 INISTA New Triangulation-Like Technique for the Evaluation of the Refractive Index Structure Constant (C2n) in Free-Space Optical LinksSILVA (Vinicius N. H.); BARBERO (Andrés P. L.); RIBEIRO (Ricardo M.)Telecom-Bretagne, Optics Department, Brest/29200 Bretagne/France (1 aut.); Laboratório de Comunicações Ópticas, Departamento de Engenharia de Telecomunicações, Universidade Federal Fluminense/Niterói 24.210-240/Brésil (2 aut., 3 aut.)
Publication en série; Niveau analytique
Journal of lightwave technology; ISSN 0733-8724; Coden JLTEDG; Etats-Unis; Da. 2011; Vol. 29; No. 21-24; Pp. 3603-3610; Bibl. 28 ref.AnglaisA light beam propagating through the atmosphere has its amplitude, phase, and propagation direction changed along the optical path due to atmospheric turbulence. This effect is caused by the randomness of the air refractive index and depends on the local temperature, pressure, and humidity. The physical parameter that quantifies the turbulence strength is well known in the literature as the refractive index structure constant (C2n). In this paper, a simple and low-cost technique based on a triangulation-like method to measure the C2n is presented for the first time to the best knowledge of the authors. Through a novel device comprised of three photodetectors in a triangle-shaped array placed on the receiver plane, it is possible, after power measurements and applying a developed mathematical model, to obtain precisely the position of the beam spot. Therefore, calculates the C2n and evaluates the atmospheric turbulence strength. Furthermore, the technique is useful to check the suitability of a free-space optical (FSO) link in a specific geographic region by monitoring the local turbulence. Also, the device will be useful to improve the deployment and maintenance of FSO systems.001D04B08B; 001D03F15Triangulation; Indice réfraction; Optique sans fil; Propagation espace libre; Liaison optique; Chemin optique; Turbulence atmosphérique; Humidité; Diminution coût; Aspect économique; Analyse coût; Photodétecteur; Récepteur; Modèle mathématique; Télécommunication optique; Monitorage; Processeur RISC; Télécommunication sans fil; Circuit intégréDispositif optoélectroniqueTriangulation; Refraction index; Free space optics; Free space propagation; Optical links; Optical path; Atmospheric turbulence; Humidity; Cost lowering; Economic aspect; Cost analysis; Photodetector; Receiver; Mathematical model; Optical telecommunication; Monitoring; RISC processor; Wireless telecommunication; Integrated circuitOptoelectronic deviceTriangulación; Indice refracción; Optica inalámbrica; Alcance óptico; Turbulencia atmosférica; Humedad; Reducción costes; Aspecto económico; Análisis costo; Fotodetector; Receptor; Modelo matemático; Telecomunicación óptica; Monitoreo; Procesador RISC; Telecomunicación sin hilo; Circuito integradoINIST-20142.35400050885350055012-0075223 001B82 Classification of MODIS EVI time series for crop mapping in the state of Mato Grosso, BrazilDamien ArvorCOSTEL UMR 6554 CNRS-LETG, Universite Rennes 2, Place du Recteur H. Le Moal35043 RennesFRA1 aut.4 aut.Milton JonathanEmbrapa Solos, Rua Jardim Botânico, 102422460-000, Rio de Janeiro, RJBRA2 aut.3 aut.Margareth Simoes Penello MeirellesEmbrapa Solos, Rua Jardim Botânico, 102422460-000, Rio de Janeiro, RJBRA2 aut.3 aut.Universidade do Estado do Rio de Janeiro, UERJ, Departamento de Engenharia de Sistemas e Computação. Pos Graduação em Geomatica rua São Francisco Xavier, 524, 5028-D, MaracanaCEP 20550-900, Rio de Janeiro - RJBRA3 aut.Embrapa-Program Labex Europe, Maison de la Teledetection, 500, rue Jean-François Breton34093 MontpellierFRA3 aut.Vincent DubreuilCOSTEL UMR 6554 CNRS-LETG, Universite Rennes 2, Place du Recteur H. Le Moal35043 RennesFRA1 aut.4 aut.Centro de Desenvolvimento Sustentavel - CDS, Universidade de Brasilia (bolsista da CAPES em 2008), CEP 70904-970, Campus Universitario Darcy Ribeiro, Gleba AAsa Norte, Brasilia-DFBRA4 aut.Laurent DurieuxInstitut de Recherche et Développement, UMR ESPACE-DEV 228, CP 7091Lago Sul, CEP 71619-970BRA5 aut.12-00766232011PASCAL 12-0076623 INISTPascal:12-0076623000D140143-1161Int. j. remote sens. : (Print)International journal of remote sensing : (Print)2006Amazon BasinClassifierCropping systemCultural practiceDouble croppingExtraction processGlycine maxGossypiumIntensificationMato Grosso BrazilRepresentationSmoothingSoybeanSpectroradiometryTime seriesTreatmentVegetation indexZea maysagriculturealgorithmscartographyclassificationdetectionmapsrural areasstatistical analysisClassificationSpectroradiométrieIndice végétationSérie temporelleCartographieAgricultureIntensificationCarteZone ruraleReprésentationTechnique culturaleSojaGlycine maxZea maysGossypiumCulture doubleSystème cultureAnalyse statistiqueLissageAlgorithmeProcédé extractionClassificateurTraitementDétection2006Spectroradiomètre MODIS<<>>Mato GrossoBassin Amazone
Agriculture in Brazilian Amazonia is going through a period of intensification. Crop mapping is important in understanding the way this intensification is occurring and the impact it is having. Two successive classifications based on MODIS (MODerate Resolution Imaging Spectroradiometer)-TERRA/EVI (Enhanced Vegetation Index) time series are applied (1) to map agricultural areas and (2) to identify five crop classes. These classes represent agricultural practices involving three commercial crops (soybean, maize and cotton) planted in single or double cropping systems. Both classifications are based on five steps: ( 1 ) analysis of the MODIS/EVI time series, (2) application of a smoothing algorithm, (3) application of a feature selection/extraction process to reduce the data set dimensionality, (4) application of a classifier and (5) application of a post-classification treatment. The first classification detected 95% of the agricultural areas (5 617 250 ha during the 2006-2007 harvest) and correlation coefficients with agricultural statistics exceeded 0.98 for the three crop classes at municipality level. The second classification (overall accuracy = 74% and kappa index = 0.675) allowed us to obtain the spatial variability mapping of agricultural practices in the state of Mato Grosso. A total of 30% of the total planted area was cultivated through double cropping systems, especially along the BR163 highway and in the Parecis plateau region.
0143-1161IJSEDKInt. j. remote sens. : (Print)3222Classification of MODIS EVI time series for crop mapping in the state of Mato Grosso, BrazilARVOR (Damien)JONATHAN (Milton)PENELLO MEIRELLES (Margareth Simoes)DUBREUIL (Vincent)DURIEUX (Laurent)COSTEL UMR 6554 CNRS-LETG, Universite Rennes 2, Place du Recteur H. Le Moal35043 RennesFRA1 aut.4 aut.Embrapa Solos, Rua Jardim Botânico, 102422460-000, Rio de Janeiro, RJBRA2 aut.3 aut.Universidade do Estado do Rio de Janeiro, UERJ, Departamento de Engenharia de Sistemas e Computação. Pos Graduação em Geomatica rua São Francisco Xavier, 524, 5028-D, MaracanaCEP 20550-900, Rio de Janeiro - RJBRA3 aut.Embrapa-Program Labex Europe, Maison de la Teledetection, 500, rue Jean-François Breton34093 MontpellierFRA3 aut.Centro de Desenvolvimento Sustentavel - CDS, Universidade de Brasilia (bolsista da CAPES em 2008), CEP 70904-970, Campus Universitario Darcy Ribeiro, Gleba AAsa Norte, Brasilia-DFBRA4 aut.Institut de Recherche et Développement, UMR ESPACE-DEV 228, CP 7091Lago Sul, CEP 71619-970BRA5 aut.7847-78712011ENGINIST194373540005055805604800000© 2012 INIST-CNRS. All rights reserved.4 p.12-0076623PAInternational journal of remote sensing : (Print)GBRAgriculture in Brazilian Amazonia is going through a period of intensification. Crop mapping is important in understanding the way this intensification is occurring and the impact it is having. Two successive classifications based on MODIS (MODerate Resolution Imaging Spectroradiometer)-TERRA/EVI (Enhanced Vegetation Index) time series are applied (1) to map agricultural areas and (2) to identify five crop classes. These classes represent agricultural practices involving three commercial crops (soybean, maize and cotton) planted in single or double cropping systems. Both classifications are based on five steps: ( 1 ) analysis of the MODIS/EVI time series, (2) application of a smoothing algorithm, (3) application of a feature selection/extraction process to reduce the data set dimensionality, (4) application of a classifier and (5) application of a post-classification treatment. The first classification detected 95% of the agricultural areas (5 617 250 ha during the 2006-2007 harvest) and correlation coefficients with agricultural statistics exceeded 0.98 for the three crop classes at municipality level. The second classification (overall accuracy = 74% and kappa index = 0.675) allowed us to obtain the spatial variability mapping of agricultural practices in the state of Mato Grosso. A total of 30% of the total planted area was cultivated through double cropping systems, especially along the BR163 highway and in the Parecis plateau region.002A14A03001E01M04225B04Classification01classification01Clasificación01Spectroradiométrie02Spectroradiometry02Espectroradiometría02Indice végétation03Vegetation index03Indice de vegetación03Série temporelle04Time series04Serie temporal04Cartographie05cartography05Cartografía05Agriculture06agriculture06Agricultura06Intensification07Intensification07Intensificación07Carte08maps08Mapa08Zone rurale09rural areas09Zona rural09Représentation10Representation10Representación10Technique culturale11Cultural practice11Técnica cultivo11Soja12Soybean12Soya12Glycine maxNS13Glycine maxNS13Glycine maxNS13Zea maysNS14Zea maysNS14Zea maysNS14GossypiumNS15GossypiumNS15GossypiumNS15Culture double16Double cropping16Cultivo doble16Système culture17Cropping system17Sistema cultural17Analyse statistique18statistical analysis18Lissage19Smoothing19Alisamiento19Algorithme20algorithms20Algoritmo20Procédé extraction21Extraction process21Procedimiento extracción21Classificateur22Classifier22Clasificador22Traitement23Treatment23Tratamiento23Détection24detection24200625200625200625Spectroradiomètre MODISINC52<<>>INC53Mato GrossoNG61Mato Grosso BrazilNG61Mato GrossoNG61Bassin AmazoneNG62Amazon BasinNG62Cuenca AmazonasNG62LeguminosaeNSLeguminosaeNSLeguminosaeNSDicotyledonesNSDicotyledonesNSDicotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSGramineaeNSGramineaeNSGramineaeNSMonocotyledonesNSMonocotyledonesNSMonocotyledonesNSMalvaceaeNSMalvaceaeNSMalvaceaeNSBrésilNGBrazilNGBrasilNGAmérique du Sud564South America564America del sur564058OTOOTOPASCAL 12-0076623 INISTClassification of MODIS EVI time series for crop mapping in the state of Mato Grosso, BrazilARVOR (Damien); JONATHAN (Milton); PENELLO MEIRELLES (Margareth Simoes); DUBREUIL (Vincent); DURIEUX (Laurent)COSTEL UMR 6554 CNRS-LETG, Universite Rennes 2, Place du Recteur H. Le Moal/35043 Rennes/France (1 aut., 4 aut.); Embrapa Solos, Rua Jardim Botânico, 1024/22460-000, Rio de Janeiro, RJ/Brésil (2 aut., 3 aut.); Universidade do Estado do Rio de Janeiro, UERJ, Departamento de Engenharia de Sistemas e Computação. Pos Graduação em Geomatica rua São Francisco Xavier, 524, 5028-D, Maracana/CEP 20550-900, Rio de Janeiro - RJ/Brésil (3 aut.); Embrapa-Program Labex Europe, Maison de la Teledetection, 500, rue Jean-François Breton/34093 Montpellier/France (3 aut.); Centro de Desenvolvimento Sustentavel - CDS, Universidade de Brasilia (bolsista da CAPES em 2008), CEP 70904-970, Campus Universitario Darcy Ribeiro, Gleba A/Asa Norte, Brasilia-DF/Brésil (4 aut.); Institut de Recherche et Développement, UMR ESPACE-DEV 228, CP 7091/Lago Sul, CEP 71619-970/Brésil (5 aut.)
Publication en série; Niveau analytique
International journal of remote sensing : (Print); ISSN 0143-1161; Coden IJSEDK; Royaume-Uni; Da. 2011; Vol. 32; No. 22; Pp. 7847-7871; Bibl. 4 p.AnglaisAgriculture in Brazilian Amazonia is going through a period of intensification. Crop mapping is important in understanding the way this intensification is occurring and the impact it is having. Two successive classifications based on MODIS (MODerate Resolution Imaging Spectroradiometer)-TERRA/EVI (Enhanced Vegetation Index) time series are applied (1) to map agricultural areas and (2) to identify five crop classes. These classes represent agricultural practices involving three commercial crops (soybean, maize and cotton) planted in single or double cropping systems. Both classifications are based on five steps: ( 1 ) analysis of the MODIS/EVI time series, (2) application of a smoothing algorithm, (3) application of a feature selection/extraction process to reduce the data set dimensionality, (4) application of a classifier and (5) application of a post-classification treatment. The first classification detected 95% of the agricultural areas (5 617 250 ha during the 2006-2007 harvest) and correlation coefficients with agricultural statistics exceeded 0.98 for the three crop classes at municipality level. The second classification (overall accuracy = 74% and kappa index = 0.675) allowed us to obtain the spatial variability mapping of agricultural practices in the state of Mato Grosso. A total of 30% of the total planted area was cultivated through double cropping systems, especially along the BR163 highway and in the Parecis plateau region.002A14A03; 001E01M04; 225B04Classification; Spectroradiométrie; Indice végétation; Série temporelle; Cartographie; Agriculture; Intensification; Carte; Zone rurale; Représentation; Technique culturale; Soja; Glycine max; Zea mays; Gossypium; Culture double; Système culture; Analyse statistique; Lissage; Algorithme; Procédé extraction; Classificateur; Traitement; Détection; 2006; Spectroradiomètre MODIS; <<>>; Mato Grosso; Bassin AmazoneLeguminosae; Dicotyledones; Angiospermae; Spermatophyta; Gramineae; Monocotyledones; Malvaceae; Brésil; Amérique du Sudclassification; Spectroradiometry; Vegetation index; Time series; cartography; agriculture; Intensification; maps; rural areas; Representation; Cultural practice; Soybean; Glycine max; Zea mays; Gossypium; Double cropping; Cropping system; statistical analysis; Smoothing; algorithms; Extraction process; Classifier; Treatment; detection; 2006; Mato Grosso Brazil; Amazon BasinLeguminosae; Dicotyledones; Angiospermae; Spermatophyta; Gramineae; Monocotyledones; Malvaceae; Brazil; South AmericaClasificación; Espectroradiometría; Indice de vegetación; Serie temporal; Cartografía; Agricultura; Intensificación; Mapa; Zona rural; Representación; Técnica cultivo; Soya; Glycine max; Zea mays; Gossypium; Cultivo doble; Sistema cultural; Alisamiento; Algoritmo; Procedimiento extracción; Clasificador; Tratamiento; 2006; Mato Grosso; Cuenca AmazonasINIST-19437.35400050558056048012-0076623 001B83 Ultrafine grains and the Hall-Petch relationship in an Al-Mg-Si alloy processed by high-pressure torsionAicha LoucifLaboratoire de Physique de Rayonnements (LPR), Département de Physique Faculte des Sciences, Universite Badji Mokhtar, BP 12Annaba 23000DZA1 aut.5 aut.Roberto B. FigueiredoDepartment of Materials and Construction, Federal University of Minas GeraisBelo Horizonte, MG 31270-901BRA2 aut.Thierry BaudinUniversité Paris-Sud 11, ICMMO, UMR CNRS 8182, bat. 41091405 OrsayFRA3 aut.4 aut.François BrissetUniversité Paris-Sud 11, ICMMO, UMR CNRS 8182, bat. 41091405 OrsayFRA3 aut.4 aut.Rafik ChemamLaboratoire de Physique de Rayonnements (LPR), Département de Physique Faculte des Sciences, Universite Badji Mokhtar, BP 12Annaba 23000DZA1 aut.5 aut.Terence G. LangdonMaterials Research Group, School of Engineering Sciences University of SouthamptonSouthampton SO17 1BJGBR6 aut.Department of Aerospace & Department of Mechanical Engineering and Materials Science, University of Southern CaliforniaLos Angeles, CA 90089-1453USA6 aut.12-00779332012PASCAL 12-0077933 INISTPascal:12-0077933000D130921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.Materials science & engineering. A, Structural materials : properties, microstructure and processingAluminiumDislocationsFine grain structureGrain boundary misorientationGrain refinementGrain sizeHall Petch relationshipHardnessHigh pressure torsionImpuritiesMicrostructureStructure grain finRelation Hall PetchDuretéMicrostructureAffinement grainGrosseur grainDislocationImpuretéDésorientation joint grainAluminiumTorsion sous haute pression
Experiments were conducted to evaluate the evolution of hardness and microstructure in a commercial Al-0.6% Mg-0.4% Si alloy during processing by high-pressure torsion (HPT). The HPT was conducted under a pressure of 6.0 GPa and disks were torsionally strained to a maximum of 20 turns. It is shown that processing by HPT leads to microstructural refinement with an average grain size of ∼250 nm and to an increase in hardness up to a saturation value at equivalent strains above ∼100. There is a deviation in the Hall-Petch relationship at grain sizes smaller than ∼500 nm and this is consistent with an earlier suggestion that a breakdown may occur if there is an easy movement of the extrinsic dislocations in the non-equilibrium grain boundaries introduced by HPT processing.
0921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.532Ultrafine grains and the Hall-Petch relationship in an Al-Mg-Si alloy processed by high-pressure torsionLOUCIF (Aicha)FIGUEIREDO (Roberto B.)BAUDIN (Thierry)BRISSET (François)CHEMAM (Rafik)LANGDON (Terence G.)Laboratoire de Physique de Rayonnements (LPR), Département de Physique Faculte des Sciences, Universite Badji Mokhtar, BP 12Annaba 23000DZA1 aut.5 aut.Department of Materials and Construction, Federal University of Minas GeraisBelo Horizonte, MG 31270-901BRA2 aut.Université Paris-Sud 11, ICMMO, UMR CNRS 8182, bat. 41091405 OrsayFRA3 aut.4 aut.Materials Research Group, School of Engineering Sciences University of SouthamptonSouthampton SO17 1BJGBR6 aut.Department of Aerospace & Department of Mechanical Engineering and Materials Science, University of Southern CaliforniaLos Angeles, CA 90089-1453USA6 aut.139-1452012ENGINIST12899A3540005086538602100000© 2012 INIST-CNRS. All rights reserved.48 ref.12-0077933PAMaterials science & engineering. A, Structural materials : properties, microstructure and processingGBRExperiments were conducted to evaluate the evolution of hardness and microstructure in a commercial Al-0.6% Mg-0.4% Si alloy during processing by high-pressure torsion (HPT). The HPT was conducted under a pressure of 6.0 GPa and disks were torsionally strained to a maximum of 20 turns. It is shown that processing by HPT leads to microstructural refinement with an average grain size of ∼250 nm and to an increase in hardness up to a saturation value at equivalent strains above ∼100. There is a deviation in the Hall-Petch relationship at grain sizes smaller than ∼500 nm and this is consistent with an earlier suggestion that a breakdown may occur if there is an easy movement of the extrinsic dislocations in the non-equilibrium grain boundaries introduced by HPT processing.001B60B20Q001B60B20F001B80A40GStructure grain fin02Fine grain structure02Estructura grano fino02Relation Hall Petch03Hall Petch relationship03Relación Hall Petch03Dureté04Hardness04Microstructure05Microstructure05Affinement grain06Grain refinement06Grosseur grain07Grain size07Dislocation08Dislocations08Impureté10Impurities10Désorientation joint grain11Grain boundary misorientation11Desorientación plano de exfoliación11AluminiumNC15AluminiumNC15Torsion sous haute pressionCD96High pressure torsionCD96058PASCAL 12-0077933 INISTUltrafine grains and the Hall-Petch relationship in an Al-Mg-Si alloy processed by high-pressure torsionLOUCIF (Aicha); FIGUEIREDO (Roberto B.); BAUDIN (Thierry); BRISSET (François); CHEMAM (Rafik); LANGDON (Terence G.)Laboratoire de Physique de Rayonnements (LPR), Département de Physique Faculte des Sciences, Universite Badji Mokhtar, BP 12/Annaba 23000/Algérie (1 aut., 5 aut.); Department of Materials and Construction, Federal University of Minas Gerais/Belo Horizonte, MG 31270-901/Brésil (2 aut.); Université Paris-Sud 11, ICMMO, UMR CNRS 8182, bat. 410/91405 Orsay/France (3 aut., 4 aut.); Materials Research Group, School of Engineering Sciences University of Southampton/Southampton SO17 1BJ/Royaume-Uni (6 aut.); Department of Aerospace & Department of Mechanical Engineering and Materials Science, University of Southern California/Los Angeles, CA 90089-1453/Etats-Unis (6 aut.)
Publication en série; Niveau analytique
Materials science & engineering. A, Structural materials : properties, microstructure and processing; ISSN 0921-5093; Royaume-Uni; Da. 2012; Vol. 532; Pp. 139-145; Bibl. 48 ref.AnglaisExperiments were conducted to evaluate the evolution of hardness and microstructure in a commercial Al-0.6% Mg-0.4% Si alloy during processing by high-pressure torsion (HPT). The HPT was conducted under a pressure of 6.0 GPa and disks were torsionally strained to a maximum of 20 turns. It is shown that processing by HPT leads to microstructural refinement with an average grain size of ∼250 nm and to an increase in hardness up to a saturation value at equivalent strains above ∼100. There is a deviation in the Hall-Petch relationship at grain sizes smaller than ∼500 nm and this is consistent with an earlier suggestion that a breakdown may occur if there is an easy movement of the extrinsic dislocations in the non-equilibrium grain boundaries introduced by HPT processing.001B60B20Q; 001B60B20F; 001B80A40GStructure grain fin; Relation Hall Petch; Dureté; Microstructure; Affinement grain; Grosseur grain; Dislocation; Impureté; Désorientation joint grain; Aluminium; Torsion sous haute pressionFine grain structure; Hall Petch relationship; Hardness; Microstructure; Grain refinement; Grain size; Dislocations; Impurities; Grain boundary misorientation; Aluminium; High pressure torsionEstructura grano fino; Relación Hall Petch; Desorientación plano de exfoliaciónINIST-12899A.35400050865386021012-0077933 001B84 X-ray diffraction study of microstructural changes during fatigue damage initiation in steel pipesB. PinheiroLaboratory of Mechanics of Lille (LML), UMR CNRS 8107, University of Lille 1, Boulevard Paul Langevin, Cité Scientifique59655 Villeneuve d'AscqFRA1 aut.2 aut.4 aut.J. LesageLaboratory of Mechanics of Lille (LML), UMR CNRS 8107, University of Lille 1, Boulevard Paul Langevin, Cité Scientifique59655 Villeneuve d'AscqFRA1 aut.2 aut.4 aut.I. PasqualinoSubsea Technology Laboratory (LTS), Ocean Engineering Department, COPPE/Federal University of Rio de Janeiro, PO Box 68508, Cidade UniversitáriaCEP 21945-970, Rio de Janeiro/RJBRA3 aut.N. BenseddiqLaboratory of Mechanics of Lille (LML), UMR CNRS 8107, University of Lille 1, Boulevard Paul Langevin, Cité Scientifique59655 Villeneuve d'AscqFRA1 aut.2 aut.4 aut.E. BemporadInterdepartmental Laboratory of Electron Microscopy (LIME), University of Rome TRE, Via Della Vasca Navale 7900146 RomeITA5 aut.12-00779422012PASCAL 12-0077942 INISTPascal:12-0077942000D120921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.Materials science & engineering. A, Structural materials : properties, microstructure and processingBending fatigue testCrackingDamagingDislocationHigh cycle fatigueMicrodeformationMicrostructurePipeResidual stressRuptureSteelX ray diffractionDiffraction RXMicrostructureFatigue polycycliqueEndommagementFissurationDislocationRuptureMicrodéformationContrainte résiduelleEssai flexion alternéeCanalisationAcier
Steel pipes used in the oil and gas industry undergo the action of cyclic loads that can cause their failure by fatigue. A consistent evaluation of the fatigue damage during the initiation phase should fundamentally be based on a nanoscale approach, i.e., at the scale of the dislocation network, in order to take into account the micromechanisms of fatigue damage that precede macrocrack initiation and propagation until the final fracture. In this work, microstructural changes related to fatigue damage initiation are investigated in the API 5L X60 grade steel, used in pipe manufacturing. Microdeformations and macro residual stress are evaluated using X-ray diffraction in real time during alternating bending fatigue tests performed on samples cut off from an X60 steel pipe. The aim of this ongoing work is to provide ground for further development of an indicator of fatigue damage initiation in X60 steel. This damage indicator could allow a good residual life prediction of steel pipes previously submitted to fatigue loading, before macroscopic cracking, and help to increase the reliability of these structures.
0921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.532X-ray diffraction study of microstructural changes during fatigue damage initiation in steel pipesPINHEIRO (B.)LESAGE (J.)PASQUALINO (I.)BENSEDDIQ (N.)BEMPORAD (E.)Laboratory of Mechanics of Lille (LML), UMR CNRS 8107, University of Lille 1, Boulevard Paul Langevin, Cité Scientifique59655 Villeneuve d'AscqFRA1 aut.2 aut.4 aut.Subsea Technology Laboratory (LTS), Ocean Engineering Department, COPPE/Federal University of Rio de Janeiro, PO Box 68508, Cidade UniversitáriaCEP 21945-970, Rio de Janeiro/RJBRA3 aut.Interdepartmental Laboratory of Electron Microscopy (LIME), University of Rome TRE, Via Della Vasca Navale 7900146 RomeITA5 aut.158-1662012ENGINIST12899A3540005086538602400000© 2012 INIST-CNRS. All rights reserved.51 ref.12-0077942PAMaterials science & engineering. A, Structural materials : properties, microstructure and processingGBRSteel pipes used in the oil and gas industry undergo the action of cyclic loads that can cause their failure by fatigue. A consistent evaluation of the fatigue damage during the initiation phase should fundamentally be based on a nanoscale approach, i.e., at the scale of the dislocation network, in order to take into account the micromechanisms of fatigue damage that precede macrocrack initiation and propagation until the final fracture. In this work, microstructural changes related to fatigue damage initiation are investigated in the API 5L X60 grade steel, used in pipe manufacturing. Microdeformations and macro residual stress are evaluated using X-ray diffraction in real time during alternating bending fatigue tests performed on samples cut off from an X60 steel pipe. The aim of this ongoing work is to provide ground for further development of an indicator of fatigue damage initiation in X60 steel. This damage indicator could allow a good residual life prediction of steel pipes previously submitted to fatigue loading, before macroscopic cracking, and help to increase the reliability of these structures.001D11G03240Diffraction RX02X ray diffraction02Roentgenbeugung02Difracción RX02Microstructure03Microstructure03Mikrogefuege03Microestructura03Fatigue polycyclique04High cycle fatigue04Fatiga polyciclica04Endommagement05Damaging05Deterioración05Fissuration06Cracking06Rissbildung06Agrietamiento06Dislocation07Dislocation07Versetzung07Dislocación07Rupture08Rupture08Bruch08Ruptura08Microdéformation09Microdeformation09Mikroverformung09Microdeformatión09Contrainte résiduelle10Residual stress10Eigenspannung10Tensión residual10Essai flexion alternée12Bending fatigue test12Hin und Herbiegeversuch12Prueba flexión alternada12Canalisation14Pipe14Rohrleitung14Canalización14Acier15Steel15Acero15058PASCAL 12-0077942 INISTX-ray diffraction study of microstructural changes during fatigue damage initiation in steel pipesPINHEIRO (B.); LESAGE (J.); PASQUALINO (I.); BENSEDDIQ (N.); BEMPORAD (E.)Laboratory of Mechanics of Lille (LML), UMR CNRS 8107, University of Lille 1, Boulevard Paul Langevin, Cité Scientifique/59655 Villeneuve d'Ascq/France (1 aut., 2 aut., 4 aut.); Subsea Technology Laboratory (LTS), Ocean Engineering Department, COPPE/Federal University of Rio de Janeiro, PO Box 68508, Cidade Universitária/CEP 21945-970, Rio de Janeiro/RJ/Brésil (3 aut.); Interdepartmental Laboratory of Electron Microscopy (LIME), University of Rome TRE, Via Della Vasca Navale 79/00146 Rome/Italie (5 aut.)
Publication en série; Niveau analytique
Materials science & engineering. A, Structural materials : properties, microstructure and processing; ISSN 0921-5093; Royaume-Uni; Da. 2012; Vol. 532; Pp. 158-166; Bibl. 51 ref.AnglaisSteel pipes used in the oil and gas industry undergo the action of cyclic loads that can cause their failure by fatigue. A consistent evaluation of the fatigue damage during the initiation phase should fundamentally be based on a nanoscale approach, i.e., at the scale of the dislocation network, in order to take into account the micromechanisms of fatigue damage that precede macrocrack initiation and propagation until the final fracture. In this work, microstructural changes related to fatigue damage initiation are investigated in the API 5L X60 grade steel, used in pipe manufacturing. Microdeformations and macro residual stress are evaluated using X-ray diffraction in real time during alternating bending fatigue tests performed on samples cut off from an X60 steel pipe. The aim of this ongoing work is to provide ground for further development of an indicator of fatigue damage initiation in X60 steel. This damage indicator could allow a good residual life prediction of steel pipes previously submitted to fatigue loading, before macroscopic cracking, and help to increase the reliability of these structures.001D11G03; 240Diffraction RX; Microstructure; Fatigue polycyclique; Endommagement; Fissuration; Dislocation; Rupture; Microdéformation; Contrainte résiduelle; Essai flexion alternée; Canalisation; AcierX ray diffraction; Microstructure; High cycle fatigue; Damaging; Cracking; Dislocation; Rupture; Microdeformation; Residual stress; Bending fatigue test; Pipe; SteelRoentgenbeugung; Mikrogefuege; Rissbildung; Versetzung; Bruch; Mikroverformung; Eigenspannung; Hin und Herbiegeversuch; RohrleitungDifracción RX; Microestructura; Fatiga polyciclica; Deterioración; Agrietamiento; Dislocación; Ruptura; Microdeformatión; Tensión residual; Prueba flexión alternada; Canalización; AceroINIST-12899A.35400050865386024012-0077942 001B85 Insécurité civile: l'image de la violence à Rio de JaneiroMaria Izabel Oliveira SzpacenkopfUniversité Fédérale du Rio de Janeiro, et Laboratoire de Politique Publique à l'Université d'État de Rio de JaneiroBRA1 aut.12-00794392010PASCAL 12-0079439 INISTPascal:12-0079439000D11FRANCIS 12-0079439 INIST1145-1882Psychol. clin. : (Paris)Psychologie clinique : (Paris)AdolescentAttributionBrazilChildCitizenshipCultural aspectImageMass mediaPolitical aspectReciprocitySchool ageSelf-consciousnessUrban environmentVideo recordingViolenceViolenceRéciprocitéMilieu urbainBrésilAttributionImageAspect culturelAspect politiqueCitoyennetéEnregistrement vidéoMass mediaEnfantAge scolaireAdolescentSubjectivationInsécurité socialeImpunitéConscience de soi
Dans cet article sont présentées des données analysées et vérifiées à partir de la recherche "L'Image de la Violence à Rio de Janeirro", élaborée avec 420 élèves du réseau de l'enseignement public à Rio de Janeiro. Les données présentées ont pour axe la Réciprocité entre État et citoyen et se rapportent à l'insécurité sociale, l'impunité, l'image par rapport à l'État et l'image que le jeune pense que l'État se fait de lui, jeune.
1145-1882Psychol. clin. : (Paris)30Insécurité civile: l'image de la violence à Rio de JaneiroViolencesOLIVEIRA SZPACENKOPF (Maria Izabel)WACJMAN (Claude)ed.DOUVILLE (Olivier)ed.Université Fédérale du Rio de Janeiro, et Laboratoire de Politique Publique à l'Université d'État de Rio de JaneiroBRA1 aut.Université Paris Diderot, Centre de recherches psychanalyse, médecine et sociétéFRA1 aut.Paris X Nanterre, Centre de recherche psychanalyse médecine et société, Paris diderotFRA2 aut.170-1812010FREengINIST222363540005085206101400000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0079439PAPsychologie clinique : (Paris)FRASocial insecurity: the image of violence in Rio de JaneiroDans cet article sont présentées des données analysées et vérifiées à partir de la recherche "L'Image de la Violence à Rio de Janeirro", élaborée avec 420 élèves du réseau de l'enseignement public à Rio de Janeiro. Les données présentées ont pour axe la Réciprocité entre État et citoyen et se rapportent à l'insécurité sociale, l'impunité, l'image par rapport à l'État et l'image que le jeune pense que l'État se fait de lui, jeune.002A26M06Violence01Violence01Violencia01Réciprocité02Reciprocity02Reciprocidad02Milieu urbain03Urban environment03Medio urbano03BrésilNG04BrazilNG04BrasilNG04Attribution05Attribution05Atribución05Image06Image06Imagen06Aspect culturel07Cultural aspect07Aspecto cultural07Aspect politique08Political aspect08Aspecto político08Citoyenneté09Citizenship09Ciudadanía09Enregistrement vidéo10Video recording10Registro vídeo10Mass media11Mass media11Medios comunicación de masas11Enfant18Child18Niño18Age scolaire19School age19Edad escolar19Adolescent20Adolescent20Adolescente20SubjectivationINC86Insécurité socialeINC87ImpunitéINC88Conscience de soiCD96Self-consciousnessCD96Conciencia de síCD96Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGHommeHumanHombreEnvironnement social37Social environment37Contexto social37Cognition sociale38Social cognition38Cognición social38058PASCAL 12-0079439 INISTInsécurité civile: l'image de la violence à Rio de Janeiro(Social insecurity: the image of violence in Rio de Janeiro)OLIVEIRA SZPACENKOPF (Maria Izabel); WACJMAN (Claude); DOUVILLE (Olivier)Université Fédérale du Rio de Janeiro, et Laboratoire de Politique Publique à l'Université d'État de Rio de Janeiro/Brésil (1 aut.); Université Paris Diderot, Centre de recherches psychanalyse, médecine et société/France (1 aut.); Paris X Nanterre, Centre de recherche psychanalyse médecine et société, Paris diderot/France (2 aut.)
Publication en série; Niveau analytique
Psychologie clinique : (Paris); ISSN 1145-1882; France; Da. 2010; No. 30; Pp. 170-181; Abs. anglais; Bibl. 1/4 p.FrançaisDans cet article sont présentées des données analysées et vérifiées à partir de la recherche "L'Image de la Violence à Rio de Janeirro", élaborée avec 420 élèves du réseau de l'enseignement public à Rio de Janeiro. Les données présentées ont pour axe la Réciprocité entre État et citoyen et se rapportent à l'insécurité sociale, l'impunité, l'image par rapport à l'État et l'image que le jeune pense que l'État se fait de lui, jeune.002A26M06Violence; Réciprocité; Milieu urbain; Brésil; Attribution; Image; Aspect culturel; Aspect politique; Citoyenneté; Enregistrement vidéo; Mass media; Enfant; Age scolaire; Adolescent; Subjectivation; Insécurité sociale; Impunité; Conscience de soiAmérique du Sud; Amérique; Homme; Environnement social; Cognition socialeViolence; Reciprocity; Urban environment; Brazil; Attribution; Image; Cultural aspect; Political aspect; Citizenship; Video recording; Mass media; Child; School age; Adolescent; Self-consciousnessSouth America; America; Human; Social environment; Social cognitionViolencia; Reciprocidad; Medio urbano; Brasil; Atribución; Imagen; Aspecto cultural; Aspecto político; Ciudadanía; Registro vídeo; Medios comunicación de masas; Niño; Edad escolar; Adolescente; Conciencia de síINIST-22236.35400050852061014012-0079439 001B86 Genetic diversity of symbiotic Bradyrhizobium elkanii populations recovered from inoculated and non-inoculated Acacia mangium field trials in BrazilM. M. PerrineauCIRAD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA1 aut.2 aut.5 aut.6 aut.C. Le RouxCIRAD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA1 aut.2 aut.5 aut.6 aut.S. M. De FariaEmbrapa AgrobiologiaSeropédica 23890-000, RJBRA3 aut.F. De Carvalho BalieiroEmbrapa Solos, Jardim BotânicoRio de Janeiro, RJBRA4 aut.A. GalianaCIRAD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA1 aut.2 aut.5 aut.6 aut.Y. PrinCIRAD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA1 aut.2 aut.5 aut.6 aut.G. BenaIRD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA7 aut.Laboratoire de Microbiologie et de Biologie Moléculaire, University Mohammed V AgdalMAR7 aut.12-00864232011PASCAL 12-0086423 INISTPascal:12-0086423000D100723-2020Syst. appl. microbiol.Systematic and applied microbiologyAcacia mangiumBradyrhizobiumBrazilGenetic diversityInoculationMolecular systematicsNitrogen fixationRecombinationSymbiontSymbiosisBradyrhizobiumAcacia mangiumDiversité génétiqueSymbionteSymbioseBrésilFixation azoteInoculationSystématique moléculaireRecombinaison
Acacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results with the sister species Bradyrhizobium japonicum, both in terms of population genetics and inoculant strain destiny.
0723-2020SAMIDFSyst. appl. microbiol.345Genetic diversity of symbiotic Bradyrhizobium elkanii populations recovered from inoculated and non-inoculated Acacia mangium field trials in BrazilPERRINEAU (M. M.)LE ROUX (C.)DE FARIA (S. M.)DE CARVALHO BALIEIRO (F.)GALIANA (A.)PRIN (Y.)BENA (G.)CIRAD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA1 aut.2 aut.5 aut.6 aut.Embrapa AgrobiologiaSeropédica 23890-000, RJBRA3 aut.Embrapa Solos, Jardim BotânicoRio de Janeiro, RJBRA4 aut.IRD, Laboratoire des Symbioses Tropicales & MéditerranéennesMontpellierFRA7 aut.Laboratoire de Microbiologie et de Biologie Moléculaire, University Mohammed V AgdalMAR7 aut.376-3842011ENGINIST3329C23540005094013000900000© 2012 INIST-CNRS. All rights reserved.66 ref.12-0086423PASystematic and applied microbiologyDEUAcacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results with the sister species Bradyrhizobium japonicum, both in terms of population genetics and inoculant strain destiny.002A05BradyrhizobiumNS01BradyrhizobiumNS01BradyrhizobiumNS01Acacia mangiumNS02Acacia mangiumNS02Acacia mangiumNS02Diversité génétique05Genetic diversity05Diversidad genética05Symbionte06Symbiont06Simbionte06Symbiose07Symbiosis07Simbiosis07BrésilNG08BrazilNG08BrasilNG08Fixation azote09Nitrogen fixation09Fijación nitrogeno09Inoculation10Inoculation10Inoculación10Systématique moléculaire11Molecular systematics11Taxonomía molecular11Recombinaison12Recombination12Recombinación12RhizobiaceaeNSRhizobiaceaeNSRhizobiaceaeNSBactérieBacteriaBacteriaLeguminosaeNSLeguminosaeNSLeguminosaeNSDicotyledonesNSDicotyledonesNSDicotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSAmérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGArbre forestier feuillu13Hardwood forest tree13Arbol forestal frondoso13065OTOOTOPASCAL 12-0086423 INISTGenetic diversity of symbiotic Bradyrhizobium elkanii populations recovered from inoculated and non-inoculated Acacia mangium field trials in BrazilPERRINEAU (M. M.); LE ROUX (C.); DE FARIA (S. M.); DE CARVALHO BALIEIRO (F.); GALIANA (A.); PRIN (Y.); BENA (G.)CIRAD, Laboratoire des Symbioses Tropicales & Méditerranéennes/Montpellier/France (1 aut., 2 aut., 5 aut., 6 aut.); Embrapa Agrobiologia/Seropédica 23890-000, RJ/Brésil (3 aut.); Embrapa Solos, Jardim Botânico/Rio de Janeiro, RJ/Brésil (4 aut.); IRD, Laboratoire des Symbioses Tropicales & Méditerranéennes/Montpellier/France (7 aut.); Laboratoire de Microbiologie et de Biologie Moléculaire, University Mohammed V Agdal/Maroc (7 aut.)
Publication en série; Niveau analytique
Systematic and applied microbiology; ISSN 0723-2020; Coden SAMIDF; Allemagne; Da. 2011; Vol. 34; No. 5; Pp. 376-384; Bibl. 66 ref.AnglaisAcacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results with the sister species Bradyrhizobium japonicum, both in terms of population genetics and inoculant strain destiny.002A05Bradyrhizobium; Acacia mangium; Diversité génétique; Symbionte; Symbiose; Brésil; Fixation azote; Inoculation; Systématique moléculaire; RecombinaisonRhizobiaceae; Bactérie; Leguminosae; Dicotyledones; Angiospermae; Spermatophyta; Amérique du Sud; Amérique; Arbre forestier feuilluBradyrhizobium; Acacia mangium; Genetic diversity; Symbiont; Symbiosis; Brazil; Nitrogen fixation; Inoculation; Molecular systematics; RecombinationRhizobiaceae; Bacteria; Leguminosae; Dicotyledones; Angiospermae; Spermatophyta; South America; America; Hardwood forest treeBradyrhizobium; Acacia mangium; Diversidad genética; Simbionte; Simbiosis; Brasil; Fijación nitrogeno; Inoculación; Taxonomía molecular; RecombinaciónINIST-3329C2.35400050940130009012-0086423 001B87 Fluid Catalytic Cracking (FCC) Process Modeling, Simulation, and ControlCarla I. C. PinheiroInstitute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 11049-001 LisboaPRT1 aut.3 aut.5 aut.8 aut.Joana L. FernandesProcess Design and Modeling Division, IFP Energies Nouvelles - Lyon, Rond-point de l'échangeur de Solaize, B.P. 369360 SolaizeFRA2 aut.4 aut.Luis DominguesInstitute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 11049-001 LisboaPRT1 aut.3 aut.5 aut.8 aut.Alexandre J. S. ChambelProcess Design and Modeling Division, IFP Energies Nouvelles - Lyon, Rond-point de l'échangeur de Solaize, B.P. 369360 SolaizeFRA2 aut.4 aut.Inês GracaInstitute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 11049-001 LisboaPRT1 aut.3 aut.5 aut.8 aut.Nuno M. C. OliveiraCentre for Chemical Processes Engineering and Forest Products (CLEPQPF), Department of Chemical Engineering, Universidade de Coimbra, R. Sílvio Lima - Polo II3030-790 CoimbraPRT6 aut.Henrique S. CerqueiraATP Engenharia, Rua Sao José 90/2201-C20010-020 Centro, Rio de JaneiroBRA7 aut.Fernando Ramoa RibeiroInstitute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 11049-001 LisboaPRT1 aut.3 aut.5 aut.8 aut.12-00889322012PASCAL 12-0088932 INISTPascal:12-0088932000D090888-5885Ind. eng. chem. res.Industrial & engineering chemistry researchFluid catalytic crackingModelingCraquage catalytique fluideModélisation
This paper focuses on the fluid catalytic cracking (FCC) process and reviews recent developments in its modeling, monitoring, control, and optimization. This challenging process exhibits complex behavior, requiring detailed models to express the nonlinear effects and extensive interactions between input and control variables that are observed in industrial practice. The FCC models currently available differ enormously in terms of their scope, level of detail, modeling hypothesis, and solution approaches used. Nevertheless, significant benefits from their effective use in various routine tasks are starting to be widely recognized by the industry. To help improve the existing modeling approaches, this review describes and compares the different mathematical frameworks that have been applied in the modeling, simulation, control, and optimization of this key downstream unit. Given the effects that perturbations in the feedstock quality and other unit disturbances might have, especially when associated with frequent changes in market demand, this paper also demonstrates the importance of understanding the nonlinear behavior of the FCC process. The incentives associated with the use of advanced model-based supervision strategies, such as nonlinear model predictive control and real-time optimization techniques, are also presented and discussed.
0888-5885IECREDInd. eng. chem. res.511Fluid Catalytic Cracking (FCC) Process Modeling, Simulation, and ControlPINHEIRO (Carla I. C.)FERNANDES (Joana L.)DOMINGUES (Luis)CHAMBEL (Alexandre J. S.)GRACA (Inês)OLIVEIRA (Nuno M. C.)CERQUEIRA (Henrique S.)RAMOA RIBEIRO (Fernando)Institute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 11049-001 LisboaPRT1 aut.3 aut.5 aut.8 aut.Process Design and Modeling Division, IFP Energies Nouvelles - Lyon, Rond-point de l'échangeur de Solaize, B.P. 369360 SolaizeFRA2 aut.4 aut.Centre for Chemical Processes Engineering and Forest Products (CLEPQPF), Department of Chemical Engineering, Universidade de Coimbra, R. Sílvio Lima - Polo II3030-790 CoimbraPRT6 aut.ATP Engenharia, Rua Sao José 90/2201-C20010-020 Centro, Rio de JaneiroBRA7 aut.1-292012ENGINIST120F3540005067351700100000© 2012 INIST-CNRS. All rights reserved.268 ref.12-0088932PAIndustrial & engineering chemistry researchUSAThis paper focuses on the fluid catalytic cracking (FCC) process and reviews recent developments in its modeling, monitoring, control, and optimization. This challenging process exhibits complex behavior, requiring detailed models to express the nonlinear effects and extensive interactions between input and control variables that are observed in industrial practice. The FCC models currently available differ enormously in terms of their scope, level of detail, modeling hypothesis, and solution approaches used. Nevertheless, significant benefits from their effective use in various routine tasks are starting to be widely recognized by the industry. To help improve the existing modeling approaches, this review describes and compares the different mathematical frameworks that have been applied in the modeling, simulation, control, and optimization of this key downstream unit. Given the effects that perturbations in the feedstock quality and other unit disturbances might have, especially when associated with frequent changes in market demand, this paper also demonstrates the importance of understanding the nonlinear behavior of the FCC process. The incentives associated with the use of advanced model-based supervision strategies, such as nonlinear model predictive control and real-time optimization techniques, are also presented and discussed.001D07Craquage catalytique fluide01Fluid catalytic cracking01Craqueo catalítico fluido01Modélisation02Modeling02Modelización02065OTOOTOPASCAL 12-0088932 INISTFluid Catalytic Cracking (FCC) Process Modeling, Simulation, and ControlPINHEIRO (Carla I. C.); FERNANDES (Joana L.); DOMINGUES (Luis); CHAMBEL (Alexandre J. S.); GRACA (Inês); OLIVEIRA (Nuno M. C.); CERQUEIRA (Henrique S.); RAMOA RIBEIRO (Fernando)Institute for Biotechnology and Bioengineering (IBB), Department of Chemical Engineering, Instituto Superior Técnko/Universidade Tecnica de Lisboa, Av. Rovisco Pais 1/1049-001 Lisboa/Portugal (1 aut., 3 aut., 5 aut., 8 aut.); Process Design and Modeling Division, IFP Energies Nouvelles - Lyon, Rond-point de l'échangeur de Solaize, B.P. 3/69360 Solaize/France (2 aut., 4 aut.); Centre for Chemical Processes Engineering and Forest Products (CLEPQPF), Department of Chemical Engineering, Universidade de Coimbra, R. Sílvio Lima - Polo II/3030-790 Coimbra/Portugal (6 aut.); ATP Engenharia, Rua Sao José 90/2201-C/20010-020 Centro, Rio de Janeiro/Brésil (7 aut.)
Publication en série; Niveau analytique
Industrial & engineering chemistry research; ISSN 0888-5885; Coden IECRED; Etats-Unis; Da. 2012; Vol. 51; No. 1; Pp. 1-29; Bibl. 268 ref.AnglaisThis paper focuses on the fluid catalytic cracking (FCC) process and reviews recent developments in its modeling, monitoring, control, and optimization. This challenging process exhibits complex behavior, requiring detailed models to express the nonlinear effects and extensive interactions between input and control variables that are observed in industrial practice. The FCC models currently available differ enormously in terms of their scope, level of detail, modeling hypothesis, and solution approaches used. Nevertheless, significant benefits from their effective use in various routine tasks are starting to be widely recognized by the industry. To help improve the existing modeling approaches, this review describes and compares the different mathematical frameworks that have been applied in the modeling, simulation, control, and optimization of this key downstream unit. Given the effects that perturbations in the feedstock quality and other unit disturbances might have, especially when associated with frequent changes in market demand, this paper also demonstrates the importance of understanding the nonlinear behavior of the FCC process. The incentives associated with the use of advanced model-based supervision strategies, such as nonlinear model predictive control and real-time optimization techniques, are also presented and discussed.001D07Craquage catalytique fluide; ModélisationFluid catalytic cracking; ModelingCraqueo catalítico fluido; ModelizaciónINIST-120F.35400050673517001012-0088932 001B88 Preparation of epoxy/MCDEA networks modified with ionic liquidsB. Guenther SoaresLaboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein69621 VilleurbanneFRA1 aut.2 aut.3 aut.4 aut.Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Bloco J, Ilha do Fundão21945-970 Rio de JaneiroBRA1 aut.S. LiviLaboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein69621 VilleurbanneFRA1 aut.2 aut.3 aut.4 aut.J. Duchet-RumeauLaboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein69621 VilleurbanneFRA1 aut.2 aut.3 aut.4 aut.J. F. GerardLaboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein69621 VilleurbanneFRA1 aut.2 aut.3 aut.4 aut.12-00898152012PASCAL 12-0089815 INISTPascal:12-0089815000D080032-3861Polymer : (Guildf.)Polymer : (Guildford)Catalyst activityComparative studyConcentration effectCuring (plastics)DiamineEpoxy resinExperimental studyImidazole derivativesIminium compoundsIonic liquidPyridine derivativesQuaternary phosphonium compoundRheological propertiesThermal stabilityViscoelasticityLiquide ioniqueComposé de l'iminiumDérivé de l'imidazoleDérivé de la pyridineComposé du phosphonium quaternaireActivité catalytiqueDurcissement (matière plastique)Epoxyde résineDiamineViscoélasticitéPropriété rhéologiqueStabilité thermiqueEffet concentrationEtude expérimentaleEtude comparativeViscosité complexe
Ionic liquids based on imidazolium, pyridinium and phosphonium with long alkyl chain were used to develop epoxy networked materials cured at high temperature, with 4,4'-methylene-bis 3-chloro-2,6-diethylaniline (MCDEA). Imidazolium- and pyridinium-based ILs decreased the onset curing temperature suggesting an accelerating effect, whereas those based on phosphonium salts exerted only a marginal effect on the curing process. The presence of the ILs resulted in a decrease of the glass transition temperature and this effect was less pronounced in systems containing phosphonium-based IL with [PF6] as the counteranion. The storage modulus below the Tg increased with the addition of ionic liquid suggesting an improvement of stiffness due to the interactions between the ILs and the epoxy matrix. Such interactions were also confirmed by rheological properties. Considering different ionic liquids, those constituted by phosphonium salts were effectively confined inside the epoxy networks and that containing iodide as the counteranion presented the best thermal stability, being indicated for assessing epoxy-based systems with high curing temperature.
0032-3861POLMAGPolymer : (Guildf.)531Preparation of epoxy/MCDEA networks modified with ionic liquidsGUENTHER SOARES (B.)LIVI (S.)DUCHET-RUMEAU (J.)GERARD (J. F.)Laboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein69621 VilleurbanneFRA1 aut.2 aut.3 aut.4 aut.Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Bloco J, Ilha do Fundão21945-970 Rio de JaneiroBRA1 aut.60-662012ENGINIST114633540005067304600600000© 2012 INIST-CNRS. All rights reserved.28 ref.12-0089815PAPolymer : (Guildford)GBRIonic liquids based on imidazolium, pyridinium and phosphonium with long alkyl chain were used to develop epoxy networked materials cured at high temperature, with 4,4'-methylene-bis 3-chloro-2,6-diethylaniline (MCDEA). Imidazolium- and pyridinium-based ILs decreased the onset curing temperature suggesting an accelerating effect, whereas those based on phosphonium salts exerted only a marginal effect on the curing process. The presence of the ILs resulted in a decrease of the glass transition temperature and this effect was less pronounced in systems containing phosphonium-based IL with [PF6] as the counteranion. The storage modulus below the Tg increased with the addition of ionic liquid suggesting an improvement of stiffness due to the interactions between the ILs and the epoxy matrix. Such interactions were also confirmed by rheological properties. Considering different ionic liquids, those constituted by phosphonium salts were effectively confined inside the epoxy networks and that containing iodide as the counteranion presented the best thermal stability, being indicated for assessing epoxy-based systems with high curing temperature.001D10A05BLiquide ioniqueACT01Ionic liquidACT01Líquido iónicoACT01Composé de l'iminiumACT02Iminium compoundsACT02Iminio compuestoACT02Dérivé de l'imidazoleACT03Imidazole derivativesACT03Imidazol derivadoACT03Dérivé de la pyridineACT04Pyridine derivativesACT04Piridina derivadoACT04Composé du phosphonium quaternaireACT05Quaternary phosphonium compoundACT05Fosfonio cuaternario compuestoACT05Activité catalytique07Catalyst activity07Actividad catalítica07Durcissement (matière plastique)08Curing (plastics)08Endurecimiento (material plástico)08Epoxyde résine09Epoxy resin09Epóxido resina09DiamineENT10DiamineENT10DiaminaENT10Viscoélasticité11Viscoelasticity11Viscoelasticidad11Propriété rhéologique12Rheological properties12Propiedad reológica12Stabilité thermique13Thermal stability13Estabilidad térmica13Effet concentration14Concentration effect14Efecto concentración14Etude expérimentale15Experimental study15Estudio experimental15Etude comparative16Comparative study16Estudio comparativo16Viscosité complexeINC32072PSIPSIPASCAL 12-0089815 INISTPreparation of epoxy/MCDEA networks modified with ionic liquidsGUENTHER SOARES (B.); LIVI (S.); DUCHET-RUMEAU (J.); GERARD (J. F.)Laboratoire des Matériaux Macromoléculaires/IMP, UMR 5223, INSA Lyon, Bât. Jules Verne, 20 Avenue A. Einstein/69621 Villeurbanne/France (1 aut., 2 aut., 3 aut., 4 aut.); Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Bloco J, Ilha do Fundão/21945-970 Rio de Janeiro/Brésil (1 aut.)
Publication en série; Niveau analytique
Polymer : (Guildford); ISSN 0032-3861; Coden POLMAG; Royaume-Uni; Da. 2012; Vol. 53; No. 1; Pp. 60-66; Bibl. 28 ref.AnglaisIonic liquids based on imidazolium, pyridinium and phosphonium with long alkyl chain were used to develop epoxy networked materials cured at high temperature, with 4,4'-methylene-bis 3-chloro-2,6-diethylaniline (MCDEA). Imidazolium- and pyridinium-based ILs decreased the onset curing temperature suggesting an accelerating effect, whereas those based on phosphonium salts exerted only a marginal effect on the curing process. The presence of the ILs resulted in a decrease of the glass transition temperature and this effect was less pronounced in systems containing phosphonium-based IL with [PF6] as the counteranion. The storage modulus below the Tg increased with the addition of ionic liquid suggesting an improvement of stiffness due to the interactions between the ILs and the epoxy matrix. Such interactions were also confirmed by rheological properties. Considering different ionic liquids, those constituted by phosphonium salts were effectively confined inside the epoxy networks and that containing iodide as the counteranion presented the best thermal stability, being indicated for assessing epoxy-based systems with high curing temperature.001D10A05BLiquide ionique; Composé de l'iminium; Dérivé de l'imidazole; Dérivé de la pyridine; Composé du phosphonium quaternaire; Activité catalytique; Durcissement (matière plastique); Epoxyde résine; Diamine; Viscoélasticité; Propriété rhéologique; Stabilité thermique; Effet concentration; Etude expérimentale; Etude comparative; Viscosité complexeIonic liquid; Iminium compounds; Imidazole derivatives; Pyridine derivatives; Quaternary phosphonium compound; Catalyst activity; Curing (plastics); Epoxy resin; Diamine; Viscoelasticity; Rheological properties; Thermal stability; Concentration effect; Experimental study; Comparative studyLíquido iónico; Iminio compuesto; Imidazol derivado; Piridina derivado; Fosfonio cuaternario compuesto; Actividad catalítica; Endurecimiento (material plástico); Epóxido resina; Diamina; Viscoelasticidad; Propiedad reológica; Estabilidad térmica; Efecto concentración; Estudio experimental; Estudio comparativoINIST-11463.35400050673046006012-0089815 001B89 Regulation of miR319 during cold stress in sugarcaneFlavia ThiebautLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Pós-Graduação em Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco s/n, CCS, Bl.K-32, Cidade UniversitáriaRio de Janeiro 21941-590BRA1 aut.8 aut.9 aut.Cristian A. RojasLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Universidade Federal da Integração Latino-Americana, Av. Tancredo Neves 6731, Bl.4, Foz do IguaçuParaná 85867-970BRA2 aut.Karla L. AlmeidaLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Clicia GrativolLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Giselli C. DomicianoLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Caren Regina C. LambFundação Estadual de Pesguisa Agropecuária - Centro de Pesquisa em Agroindústria, Fazenda Souza, Caxias do SulRio Grande do Sul 95125-000BRA6 aut.Janice De Almeida EnglerINRA, UMR 1301 and CNRS, UMR 6243, Interactions Biotiques et Santé Végétale, Université de Nice Sophia-AntipolisSophia Antipolis 06903FRA7 aut.Adriana S. HemerlyLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Pós-Graduação em Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco s/n, CCS, Bl.K-32, Cidade UniversitáriaRio de Janeiro 21941-590BRA1 aut.8 aut.9 aut.Paulo C. G. FerreiraLaboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Pós-Graduação em Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco s/n, CCS, Bl.K-32, Cidade UniversitáriaRio de Janeiro 21941-590BRA1 aut.8 aut.9 aut.12-00938882012PASCAL 12-0093888 INISTPascal:12-0093888000D070140-7791Plant cell environ. : (Print)Plant, cell and environment : (Print)Cold induced disorderEpigeneticsMicro RNAPlant ecologySaccharum officinarumStressStressTrouble dû au froidEpigénétiqueMicro ARNSaccharum officinarumEcologie végétale
MicroRNAs (miRNAs) are part of a novel mechanism of gene regulation that is active in plants under abiotic stress conditions. In the present study, 12 miRNAs were analysed to identify miRNAs differentially expressed in sugarcane subjected to cold stress (4 °C). The expression of miRNAs assayed by stem-loop RT-PCR showed that miR319 is up-regulated in sugarcane plantlets exposed to 4 °C for 24 h. The induction of miR319 expression during cold stress was observed in both roots and shoots. Sugarcane miR319 was also regulated by treatment with abscisic acid. Putative targets of this miRNA were identified and their expression levels were decreased in sugarcane plantlets exposed to cold. The cleavage sites of two targets were mapped using a 5' RACE PCR assay confirming the regulation of these genes by miR319. When sugarcane cultivars contrasting in cold tolerance were subjected to 4 °C, we observed up-regulation of miR319 and down-regulation of the targets in both varieties; however, the changes in expression were delayed in the cold-tolerant cultivar. These results suggest that differences in timing and levels of the expression of miR319 and its targets could be tested as markers for selection of cold-tolerant sugarcane cultivars.
0140-7791PLCEDVPlant cell environ. : (Print)353Regulation of miR319 during cold stress in sugarcaneTHIEBAUT (Flavia)ROJAS (Cristian A.)ALMEIDA (Karla L.)GRATIVOL (Clicia)DOMICIANO (Giselli C.)LAMB (Caren Regina C.)DE ALMEIDA ENGLER (Janice)HEMERLY (Adriana S.)FERREIRA (Paulo C. G.)Laboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33ABRA1 aut.2 aut.3 aut.4 aut.5 aut.8 aut.9 aut.Pós-Graduação em Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco s/n, CCS, Bl.K-32, Cidade UniversitáriaRio de Janeiro 21941-590BRA1 aut.8 aut.9 aut.Fundação Estadual de Pesguisa Agropecuária - Centro de Pesquisa em Agroindústria, Fazenda Souza, Caxias do SulRio Grande do Sul 95125-000BRA6 aut.Universidade Federal da Integração Latino-Americana, Av. Tancredo Neves 6731, Bl.4, Foz do IguaçuParaná 85867-970BRA2 aut.INRA, UMR 1301 and CNRS, UMR 6243, Interactions Biotiques et Santé Végétale, Université de Nice Sophia-AntipolisSophia Antipolis 06903FRA7 aut.502-5122012ENGINIST179873540005088667100200000© 2012 INIST-CNRS. All rights reserved.1 p.1/412-0093888PAPlant, cell and environment : (Print)GBRMicroRNAs (miRNAs) are part of a novel mechanism of gene regulation that is active in plants under abiotic stress conditions. In the present study, 12 miRNAs were analysed to identify miRNAs differentially expressed in sugarcane subjected to cold stress (4 °C). The expression of miRNAs assayed by stem-loop RT-PCR showed that miR319 is up-regulated in sugarcane plantlets exposed to 4 °C for 24 h. The induction of miR319 expression during cold stress was observed in both roots and shoots. Sugarcane miR319 was also regulated by treatment with abscisic acid. Putative targets of this miRNA were identified and their expression levels were decreased in sugarcane plantlets exposed to cold. The cleavage sites of two targets were mapped using a 5' RACE PCR assay confirming the regulation of these genes by miR319. When sugarcane cultivars contrasting in cold tolerance were subjected to 4 °C, we observed up-regulation of miR319 and down-regulation of the targets in both varieties; however, the changes in expression were delayed in the cold-tolerant cultivar. These results suggest that differences in timing and levels of the expression of miR319 and its targets could be tested as markers for selection of cold-tolerant sugarcane cultivars.002AStress01Stress01Estrés01Trouble dû au froid02Cold induced disorder02Trastorno por frío02Epigénétique03Epigenetics03Epigenética03Micro ARN04Micro RNA04Micro ARN04Saccharum officinarumNS10Saccharum officinarumNS10Saccharum officinarumNS10Ecologie végétaleCD96Plant ecologyCD96Ecología vegetalCD96Silence expression géniqueGene silencingSilencio expresión genéticaGramineaeNSGramineaeNSGramineaeNSMonocotyledonesNSMonocotyledonesNSMonocotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSPlante sucrière31Sugar plant31Planta azucarera31072OTOOTOPASCAL 12-0093888 INISTRegulation of miR319 during cold stress in sugarcaneTHIEBAUT (Flavia); ROJAS (Cristian A.); ALMEIDA (Karla L.); GRATIVOL (Clicia); DOMICIANO (Giselli C.); LAMB (Caren Regina C.); DE ALMEIDA ENGLER (Janice); HEMERLY (Adriana S.); FERREIRA (Paulo C. G.)Laboratorio de Biologia Molecular de Plantas, Instituto de Bioquímica Médica, Bl.B-33A/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 8 aut., 9 aut.); Pós-Graduação em Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco s/n, CCS, Bl.K-32, Cidade Universitária/Rio de Janeiro 21941-590/Brésil (1 aut., 8 aut., 9 aut.); Fundação Estadual de Pesguisa Agropecuária - Centro de Pesquisa em Agroindústria, Fazenda Souza, Caxias do Sul/Rio Grande do Sul 95125-000/Brésil (6 aut.); Universidade Federal da Integração Latino-Americana, Av. Tancredo Neves 6731, Bl.4, Foz do Iguaçu/Paraná 85867-970/Brésil (2 aut.); INRA, UMR 1301 and CNRS, UMR 6243, Interactions Biotiques et Santé Végétale, Université de Nice Sophia-Antipolis/Sophia Antipolis 06903/France (7 aut.)
Publication en série; Niveau analytique
Plant, cell and environment : (Print); ISSN 0140-7791; Coden PLCEDV; Royaume-Uni; Da. 2012; Vol. 35; No. 3; Pp. 502-512; Bibl. 1 p.1/4AnglaisMicroRNAs (miRNAs) are part of a novel mechanism of gene regulation that is active in plants under abiotic stress conditions. In the present study, 12 miRNAs were analysed to identify miRNAs differentially expressed in sugarcane subjected to cold stress (4 °C). The expression of miRNAs assayed by stem-loop RT-PCR showed that miR319 is up-regulated in sugarcane plantlets exposed to 4 °C for 24 h. The induction of miR319 expression during cold stress was observed in both roots and shoots. Sugarcane miR319 was also regulated by treatment with abscisic acid. Putative targets of this miRNA were identified and their expression levels were decreased in sugarcane plantlets exposed to cold. The cleavage sites of two targets were mapped using a 5' RACE PCR assay confirming the regulation of these genes by miR319. When sugarcane cultivars contrasting in cold tolerance were subjected to 4 °C, we observed up-regulation of miR319 and down-regulation of the targets in both varieties; however, the changes in expression were delayed in the cold-tolerant cultivar. These results suggest that differences in timing and levels of the expression of miR319 and its targets could be tested as markers for selection of cold-tolerant sugarcane cultivars.002AStress; Trouble dû au froid; Epigénétique; Micro ARN; Saccharum officinarum; Ecologie végétaleSilence expression génique; Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Plante sucrièreStress; Cold induced disorder; Epigenetics; Micro RNA; Saccharum officinarum; Plant ecologyGene silencing; Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Sugar plantEstrés; Trastorno por frío; Epigenética; Micro ARN; Saccharum officinarum; Ecología vegetalINIST-17987.35400050886671002012-0093888 001B90 T Regulatory Lymphocytes Prevent Aldosterone-Induced Vascular InjuryDaniel A. KasalLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.State University of Rio de JaneiroRio de JaneiroBRA1 aut.7 aut.Tlili BarhoumiLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Universite d'Avignon et des Pays de Vaucluse-AvignonAvignonFRA2 aut.8 aut.Melissa W. LiLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Naoki YamamotoLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Evguenia ZdanovichLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Asia RehmanLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Mario F. NevesState University of Rio de JaneiroRio de JaneiroBRA1 aut.7 aut.Pascal LaurantUniversite d'Avignon et des Pays de Vaucluse-AvignonAvignonFRA2 aut.8 aut.Pierre ParadisLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Ernesto L. SchiffrinLady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN10 aut.12-00940022012PASCAL 12-0094002 INISTPascal:12-0094002000D060194-911XHypertension : (Dallas Tex., 1979)Hypertension : (Dallas, Tex. 1979)AldosteroneArterial pressureBlood pressureCardiovascular diseaseHypertensionImmunityInflammationOxidative stressT-LymphocytePathologie de l'appareil circulatoireLymphocyte TAldostéroneImmunitéInflammationStress oxydatifPression artériellePression sanguineHypertension artérielle
Aldosterone mediates actions of the renin-angiotensin-aldosterone system inducing hypertension, oxidative stress, and vascular inflammation. Recently, we showed that angiotensin II-induced hypertension and vascular damage are mediated at least in part by macrophages and T-helper effector lymphocytes. Adoptive transfer of suppressor T-regulatory lymphocytes (Tregs) prevented angiotensin II action. We hypothesized that Treg adoptive transfer would blunt aldosterone-induced hypertension and vascular damage. Thirteen to 15-week-old male C57BL/6 mice were injected intravenously at 1-week intervals with 3×105 CD4+CD25+ cells (representing Treg) or control CD4+CD25- cells and then infused or not for 14 days with aldosterone (600 μg/kg per day, SC) while receiving 1% saline to drink. Aldosterone induced a small but sustained increase in blood pressure (P<0.001), decreased vasodilatory responses to acetylcholine by 66% (P<0.001), increased both media:lumen ratio (P<0.001) and media cross-sectional area of resistance arteries by 60% (P<0.05), and increased NADPH oxidase activity 2-fold in aorta (P<0.001), kidney and heart (P<0.05), and aortic superoxide production. As well, aldosterone enhanced aortic and renal cortex macrophage infiltration and aortic T-cell infiltration (all P<0.05), and tended to decrease Treg in the renal cortex. Treg adoptive transfer prevented all of the vascular and renal effects induced by aldosterone. Adoptive transfer of CD4+CD25- cells exacerbated aldosterone effects except endothelial dysfunction and increases in media:lumen ratio of resistance arteries. Thus, Tregs suppress aldosterone-mediated vascular injury, in part through effects on innate and adaptive immunity, suggesting that aldosterone-induced vascular damage could be prevented by an immunomodulatory approach.
0194-911XHPRTDNHypertension : (Dallas Tex., 1979)592T Regulatory Lymphocytes Prevent Aldosterone-Induced Vascular InjuryKASAL (Daniel A.)BARHOUMI (Tlili)LI (Melissa W.)YAMAMOTO (Naoki)ZDANOVICH (Evguenia)REHMAN (Asia)NEVES (Mario F.)LAURANT (Pascal)PARADIS (Pierre)SCHIFFRIN (Ernesto L.)Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.10 aut.Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill UniversityMontreal, QuebecCAN10 aut.State University of Rio de JaneiroRio de JaneiroBRA1 aut.7 aut.Universite d'Avignon et des Pays de Vaucluse-AvignonAvignonFRA2 aut.8 aut.324-3302012ENGINIST180593540005067518102500000© 2012 INIST-CNRS. All rights reserved.33 ref.12-0094002PAHypertension : (Dallas, Tex. 1979)USAAldosterone mediates actions of the renin-angiotensin-aldosterone system inducing hypertension, oxidative stress, and vascular inflammation. Recently, we showed that angiotensin II-induced hypertension and vascular damage are mediated at least in part by macrophages and T-helper effector lymphocytes. Adoptive transfer of suppressor T-regulatory lymphocytes (Tregs) prevented angiotensin II action. We hypothesized that Treg adoptive transfer would blunt aldosterone-induced hypertension and vascular damage. Thirteen to 15-week-old male C57BL/6 mice were injected intravenously at 1-week intervals with 3×105 CD4+CD25+ cells (representing Treg) or control CD4+CD25- cells and then infused or not for 14 days with aldosterone (600 μg/kg per day, SC) while receiving 1% saline to drink. Aldosterone induced a small but sustained increase in blood pressure (P<0.001), decreased vasodilatory responses to acetylcholine by 66% (P<0.001), increased both media:lumen ratio (P<0.001) and media cross-sectional area of resistance arteries by 60% (P<0.05), and increased NADPH oxidase activity 2-fold in aorta (P<0.001), kidney and heart (P<0.05), and aortic superoxide production. As well, aldosterone enhanced aortic and renal cortex macrophage infiltration and aortic T-cell infiltration (all P<0.05), and tended to decrease Treg in the renal cortex. Treg adoptive transfer prevented all of the vascular and renal effects induced by aldosterone. Adoptive transfer of CD4+CD25- cells exacerbated aldosterone effects except endothelial dysfunction and increases in media:lumen ratio of resistance arteries. Thus, Tregs suppress aldosterone-mediated vascular injury, in part through effects on innate and adaptive immunity, suggesting that aldosterone-induced vascular damage could be prevented by an immunomodulatory approach.002B12B05002A22DPathologie de l'appareil circulatoire01Cardiovascular disease01Aparato circulatorio patología01Lymphocyte T09T-Lymphocyte09Linfocito T09AldostéroneNKFR10AldosteroneNKFR10AldosteronaNKFR10Immunité11Immunity11Inmunidad11Inflammation12Inflammation12Inflamación12Stress oxydatif13Oxidative stress13Estrés oxidativo13Pression artérielle14Arterial pressure14Presión arterial14Pression sanguine15Blood pressure15Presión sanguínea15Hypertension artérielle16Hypertension16Hipertensión arterial16Hormone stéroïde37Steroid hormone37Hormona esteroide37Hormone surrénalienne38Adrenal hormone38Hormona suprarrenal38Minéralocorticoïde39Mineralocorticoid39Mineralocorticoide39072OTOOTOPASCAL 12-0094002 INISTT Regulatory Lymphocytes Prevent Aldosterone-Induced Vascular InjuryKASAL (Daniel A.); BARHOUMI (Tlili); LI (Melissa W.); YAMAMOTO (Naoki); ZDANOVICH (Evguenia); REHMAN (Asia); NEVES (Mario F.); LAURANT (Pascal); PARADIS (Pierre); SCHIFFRIN (Ernesto L.)Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University/Montreal, Quebec/Canada (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 9 aut., 10 aut.); Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill University/Montreal, Quebec/Canada (10 aut.); State University of Rio de Janeiro/Rio de Janeiro/Brésil (1 aut., 7 aut.); Universite d'Avignon et des Pays de Vaucluse-Avignon/Avignon/France (2 aut., 8 aut.)
Publication en série; Niveau analytique
Hypertension : (Dallas, Tex. 1979); ISSN 0194-911X; Coden HPRTDN; Etats-Unis; Da. 2012; Vol. 59; No. 2; Pp. 324-330; Bibl. 33 ref.AnglaisAldosterone mediates actions of the renin-angiotensin-aldosterone system inducing hypertension, oxidative stress, and vascular inflammation. Recently, we showed that angiotensin II-induced hypertension and vascular damage are mediated at least in part by macrophages and T-helper effector lymphocytes. Adoptive transfer of suppressor T-regulatory lymphocytes (Tregs) prevented angiotensin II action. We hypothesized that Treg adoptive transfer would blunt aldosterone-induced hypertension and vascular damage. Thirteen to 15-week-old male C57BL/6 mice were injected intravenously at 1-week intervals with 3×105 CD4+CD25+ cells (representing Treg) or control CD4+CD25- cells and then infused or not for 14 days with aldosterone (600 μg/kg per day, SC) while receiving 1% saline to drink. Aldosterone induced a small but sustained increase in blood pressure (P<0.001), decreased vasodilatory responses to acetylcholine by 66% (P<0.001), increased both media:lumen ratio (P<0.001) and media cross-sectional area of resistance arteries by 60% (P<0.05), and increased NADPH oxidase activity 2-fold in aorta (P<0.001), kidney and heart (P<0.05), and aortic superoxide production. As well, aldosterone enhanced aortic and renal cortex macrophage infiltration and aortic T-cell infiltration (all P<0.05), and tended to decrease Treg in the renal cortex. Treg adoptive transfer prevented all of the vascular and renal effects induced by aldosterone. Adoptive transfer of CD4+CD25- cells exacerbated aldosterone effects except endothelial dysfunction and increases in media:lumen ratio of resistance arteries. Thus, Tregs suppress aldosterone-mediated vascular injury, in part through effects on innate and adaptive immunity, suggesting that aldosterone-induced vascular damage could be prevented by an immunomodulatory approach.002B12B05; 002A22DPathologie de l'appareil circulatoire; Lymphocyte T; Aldostérone; Immunité; Inflammation; Stress oxydatif; Pression artérielle; Pression sanguine; Hypertension artérielleHormone stéroïde; Hormone surrénalienne; MinéralocorticoïdeCardiovascular disease; T-Lymphocyte; Aldosterone; Immunity; Inflammation; Oxidative stress; Arterial pressure; Blood pressure; HypertensionSteroid hormone; Adrenal hormone; MineralocorticoidAparato circulatorio patología; Linfocito T; Aldosterona; Inmunidad; Inflamación; Estrés oxidativo; Presión arterial; Presión sanguínea; Hipertensión arterialINIST-18059.35400050675181025012-0094002 001B91 Glucose Slows Down the Heat-Induced Aggregation of β-Lactoglobulin at Neutral pHMichele Da Silva PintoINRA, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.UFV, Laboratory of Research in Milk Products, Campus Universidade Federal de Viçosa36570 ViçosaBRA1 aut.3 aut.Salïd BouhallabINRA, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.Antonio Fernandes De CarvalhoUFV, Laboratory of Research in Milk Products, Campus Universidade Federal de Viçosa36570 ViçosaBRA1 aut.3 aut.Gwénaële HenryINRA, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.Jean-Luc PutauxCERMAV-CNRS, BP 53 Affiliated with Université Joseph Fourier and Member of the Institut de Chimie Moléculaire de Grenoble38041 GrenobleFRA5 aut.Joëlle LeonilINRA, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.12-00953132012PASCAL 12-0095313 INISTPascal:12-0095313000D050021-8561J. agric. food chem. : (Print)Journal of agricultural and food chemistry : (Print)AggregationGlucoseHeatHeat treatmentMaillard reactionpHβ-LactoglobulinGlucoseChaleurAgrégationβ-LactoglobulinepHTraitement thermiqueRéaction Maillard
The behavior of β-lactoglobulin (β-Lg) during heat treatments depends on the environmental conditions. The influence of the presence or absence of a reducing sugar, namely, glucose, on the modification of the protein during heating has been studied using fluorescence, polyacrylamide gel electrophoresis (PAGE), size-exclusion chromatography (SEC), and transmission electron microscopy. Glycated products were formed during heating 24 h at 90 °C and pH 7. The fluorescence results revealed an accumulation of the advanced Maillard products and the formation of aggregates during heating. PAGE and SEC data suggested that the products in the control samples were essentially composed of covalently linked fibrillar aggregates and that their formation was faster than that for glycated samples. We showed that glucose affected the growing step of covalent aggregates but not the initial denaturation/aggregation step of native protein. Glucose-modified proteins formed a mixture of short fibrils and polydisperse aggregates. Our results revealed that β-Lg forms fibrils at neutral pH after heating and that glucose slows the formation of these fibrils.
0021-8561JAFCAUJ. agric. food chem. : (Print)601Glucose Slows Down the Heat-Induced Aggregation of β-Lactoglobulin at Neutral pHDA SILVA PINTO (Michele)BOUHALLAB (Salïd)FERNANDES DE CARVALHO (Antonio)HENRY (Gwénaële)PUTAUX (Jean-Luc)LEONIL (Joëlle)INRA, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf35042 RennesFRA1 aut.2 aut.4 aut.6 aut.UFV, Laboratory of Research in Milk Products, Campus Universidade Federal de Viçosa36570 ViçosaBRA1 aut.3 aut.CERMAV-CNRS, BP 53 Affiliated with Université Joseph Fourier and Member of the Institut de Chimie Moléculaire de Grenoble38041 GrenobleFRA5 aut.214-2192012ENGINIST73323540005086709303100000© 2012 INIST-CNRS. All rights reserved.36 ref.12-0095313PAJournal of agricultural and food chemistry : (Print)USAThe behavior of β-lactoglobulin (β-Lg) during heat treatments depends on the environmental conditions. The influence of the presence or absence of a reducing sugar, namely, glucose, on the modification of the protein during heating has been studied using fluorescence, polyacrylamide gel electrophoresis (PAGE), size-exclusion chromatography (SEC), and transmission electron microscopy. Glycated products were formed during heating 24 h at 90 °C and pH 7. The fluorescence results revealed an accumulation of the advanced Maillard products and the formation of aggregates during heating. PAGE and SEC data suggested that the products in the control samples were essentially composed of covalently linked fibrillar aggregates and that their formation was faster than that for glycated samples. We showed that glucose affected the growing step of covalent aggregates but not the initial denaturation/aggregation step of native protein. Glucose-modified proteins formed a mixture of short fibrils and polydisperse aggregates. Our results revealed that β-Lg forms fibrils at neutral pH after heating and that glucose slows the formation of these fibrils.002A35B04GlucoseNK01GlucoseNK01GlucosaNK01Chaleur02Heat02Calor02Agrégation10Aggregation10Agregación10β-LactoglobulineNK19β-LactoglobulinNK19β-LactoglobulinaNK19pH20pH20pH20Traitement thermique24Heat treatment24Tratamiento térmico24Réaction Maillard26Maillard reaction26Reacción Maillard26Glucide08Carbohydrate08Glúcido08Facteur milieu49Environmental factor49Factor medio49Température50Temperature50Temperatura50Protéine lait51Milk protein51Proteína leche51Protéine lactosérum52Whey protein52Proteína lactosero52072OTOOTOPASCAL 12-0095313 INISTGlucose Slows Down the Heat-Induced Aggregation of β-Lactoglobulin at Neutral pHDA SILVA PINTO (Michele); BOUHALLAB (Salïd); FERNANDES DE CARVALHO (Antonio); HENRY (Gwénaële); PUTAUX (Jean-Luc); LEONIL (Joëlle)INRA, UMR1253 Science et Technologie du Lait et de l'Œuf/35042 Rennes/France (1 aut., 2 aut., 4 aut., 6 aut.); AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf/35042 Rennes/France (1 aut., 2 aut., 4 aut., 6 aut.); UFV, Laboratory of Research in Milk Products, Campus Universidade Federal de Viçosa/36570 Viçosa/Brésil (1 aut., 3 aut.); CERMAV-CNRS, BP 53 Affiliated with Université Joseph Fourier and Member of the Institut de Chimie Moléculaire de Grenoble/38041 Grenoble/France (5 aut.)
Publication en série; Niveau analytique
Journal of agricultural and food chemistry : (Print); ISSN 0021-8561; Coden JAFCAU; Etats-Unis; Da. 2012; Vol. 60; No. 1; Pp. 214-219; Bibl. 36 ref.AnglaisThe behavior of β-lactoglobulin (β-Lg) during heat treatments depends on the environmental conditions. The influence of the presence or absence of a reducing sugar, namely, glucose, on the modification of the protein during heating has been studied using fluorescence, polyacrylamide gel electrophoresis (PAGE), size-exclusion chromatography (SEC), and transmission electron microscopy. Glycated products were formed during heating 24 h at 90 °C and pH 7. The fluorescence results revealed an accumulation of the advanced Maillard products and the formation of aggregates during heating. PAGE and SEC data suggested that the products in the control samples were essentially composed of covalently linked fibrillar aggregates and that their formation was faster than that for glycated samples. We showed that glucose affected the growing step of covalent aggregates but not the initial denaturation/aggregation step of native protein. Glucose-modified proteins formed a mixture of short fibrils and polydisperse aggregates. Our results revealed that β-Lg forms fibrils at neutral pH after heating and that glucose slows the formation of these fibrils.002A35B04Glucose; Chaleur; Agrégation; β-Lactoglobuline; pH; Traitement thermique; Réaction MaillardGlucide; Facteur milieu; Température; Protéine lait; Protéine lactosérumGlucose; Heat; Aggregation; β-Lactoglobulin; pH; Heat treatment; Maillard reactionCarbohydrate; Environmental factor; Temperature; Milk protein; Whey proteinGlucosa; Calor; Agregación; β-Lactoglobulina; pH; Tratamiento térmico; Reacción MaillardINIST-7332.35400050867093031012-0095313 001B92 Premarital mental disorders and physical violence in marriage: cross-national study of married couplesE. MillerAdolescent Medicine, Department of Pediatrics, Children's Hospital of PittsburghPittsburgh, PennsylvaniaUSA1 aut.J. BreslauRAND CorporationPittsburgh, PennsylvaniaUSA2 aut.M. PetukhovaDepartment of Health Care Policy, Harvard Medical SchoolBoston, MassachusettsUSA3 aut.J. FayyadInstitute for Development, Research, Advocacy and Applied Care (IDRAAC), Department of Psychiatry and Clinical Psychology, St George Hospital University Medical Centre and Faculty of Medicine, Balamand UniversityBeirutLBN4 aut.J. Greif GreenSchool of Education, Boston UniversityBoston, MassachusettsUSA5 aut.L. KolaDepartment of Psychiatry, University College HospitalIbadanNGA6 aut.S. SeedatMedical Research Council Unit on Anxiety and Stress Disorders, Cape TownUSA7 aut.D. J. SteinDepartment of Psychiatry, University of Cape TownCape TownZAF8 aut.A. TsangHong Kong Mood Disorders Centre, Prince of Wales HospitalShatinHKG9 aut.M. C. VianaSection of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of Sao PauloSão PauloBRA10 aut.L. H. AndradeSection of Psychiatric Epidemiology and Institute of Psychiatry, School of Medicine, University of São PauloBRA11 aut.K. DemyttenaereDepartment of Psychiatry, University Hospital GasthuisbergLeuvenBEL12 aut.G. De GirolamoIstituto di Recovero e Cura a Carattere ScientificoBresciaITA13 aut.J. M. HaroParc Sanitari Sant Joan de Déu, Centro de Investigación Biomedica en Red de Salud MentalBarcelonaESP14 aut.C. HuShenzhen Institute of Mental Health and Shenzhen Kangning HospitalShenzhenCHN15 aut.E. G. KaramGeorge Hospital University Medical Centre, Balamand University, Faculty of Medicine, Institute for Development, Research, Advocacy & Applied Care (IDRAAC), Medical Institute for Neuropsychological Disorders (MIND)BeirutLBN16 aut.V. Kovess-MasfetyMD, EA 4069 Unlverslté Paris Descartes and Ecole des Hautes Etudes en Santé Publique, School of Public Health, Department of EpidemiologyParisFRA17 aut.T. TomovNew Bulgarian University, Institute for Human RelationsSofiaBGR18 aut.R. C. KesslerDepartment of Health Care Policy, Harvard Medical SchoolBoston, MassachusettsUSA19 aut.12-00958262011PASCAL 12-0095826 INISTPascal:12-0095826000D04FRANCIS 12-0095826 INIST0007-1250Br. j. psychiatry : (Print)British journal of psychiatry : (Print)HumanInternationalIntimate partner violenceMarital relationMental disorderMental healthPublic healthRisk factorSocial environmentTrouble psychiatriqueFacteur risqueViolence conjugaleInternationalRelation conjugaleSanté publiqueSanté mentaleEnvironnement socialHomme
Background Mental disorders may increase the risk of physical violence among married couples. Aims To estimate associations between premarital mental disorders and marital violence in a cross-national sample of married couples. Method A total of 1821 married couples (3642 individuals) from 11 countries were interviewed as part of the World Health Organization's World Mental Health Survey Initiative. Sixteen mental disorders with onset prior to marriage were examined as predictors of marital violence reported by either spouse. Results Any physical violence was reported by one or both spouses in 20% of couples, and was associated with husbands' externalising disorders (OR=1.7, 95% CI 1.2-2.3). Overall, the population attributable risk for marital violence related to premarital mental disorders was estimated to be 17.2%. Conclusions Husbands' externalising disorders had a modest but consistent association with marital violence across diverse countries. This finding has implications for the development of targeted interventions to reduce risk of marital violence.
0007-1250BJPYAJBr. j. psychiatry : (Print)199OCTPremarital mental disorders and physical violence in marriage: cross-national study of married couplesMILLER (E.)BRESLAU (J.)PETUKHOVA (M.)FAYYAD (J.)GREIF GREEN (J.)KOLA (L.)SEEDAT (S.)STEIN (D. J.)TSANG (A.)VIANA (M. C.)ANDRADE (L. H.)DEMYTTENAERE (K.)DE GIROLAMO (G.)HARO (J. M.)HU (C.)KARAM (E. G.)KOVESS-MASFETY (V.)TOMOV (T.)KESSLER (R. C.)Adolescent Medicine, Department of Pediatrics, Children's Hospital of PittsburghPittsburgh, PennsylvaniaUSA1 aut.RAND CorporationPittsburgh, PennsylvaniaUSA2 aut.Department of Health Care Policy, Harvard Medical SchoolBoston, MassachusettsUSA3 aut.Institute for Development, Research, Advocacy and Applied Care (IDRAAC), Department of Psychiatry and Clinical Psychology, St George Hospital University Medical Centre and Faculty of Medicine, Balamand UniversityBeirutLBN4 aut.School of Education, Boston UniversityBoston, MassachusettsUSA5 aut.Department of Psychiatry, University College HospitalIbadanNGA6 aut.Medical Research Council Unit on Anxiety and Stress Disorders, Cape TownUSA7 aut.Department of Psychiatry, University of Cape TownCape TownZAF8 aut.Hong Kong Mood Disorders Centre, Prince of Wales HospitalShatinHKG9 aut.Section of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of Sao PauloSão PauloBRA10 aut.Section of Psychiatric Epidemiology and Institute of Psychiatry, School of Medicine, University of São PauloBRA11 aut.Department of Psychiatry, University Hospital GasthuisbergLeuvenBEL12 aut.Istituto di Recovero e Cura a Carattere ScientificoBresciaITA13 aut.Parc Sanitari Sant Joan de Déu, Centro de Investigación Biomedica en Red de Salud MentalBarcelonaESP14 aut.Shenzhen Institute of Mental Health and Shenzhen Kangning HospitalShenzhenCHN15 aut.George Hospital University Medical Centre, Balamand University, Faculty of Medicine, Institute for Development, Research, Advocacy & Applied Care (IDRAAC), Medical Institute for Neuropsychological Disorders (MIND)BeirutLBN16 aut.MD, EA 4069 Unlverslté Paris Descartes and Ecole des Hautes Etudes en Santé Publique, School of Public Health, Department of EpidemiologyParisFRA17 aut.New Bulgarian University, Institute for Human RelationsSofiaBGR18 aut.Department of Health Care Policy, Harvard Medical SchoolBoston, MassachusettsUSA19 aut.330-3372011ENGINIST39993540001912510401300000© 2012 INIST-CNRS. All rights reserved.39 ref.12-0095826PABritish journal of psychiatry : (Print)GBRBackground Mental disorders may increase the risk of physical violence among married couples. Aims To estimate associations between premarital mental disorders and marital violence in a cross-national sample of married couples. Method A total of 1821 married couples (3642 individuals) from 11 countries were interviewed as part of the World Health Organization's World Mental Health Survey Initiative. Sixteen mental disorders with onset prior to marriage were examined as predictors of marital violence reported by either spouse. Results Any physical violence was reported by one or both spouses in 20% of couples, and was associated with husbands' externalising disorders (OR=1.7, 95% CI 1.2-2.3). Overall, the population attributable risk for marital violence related to premarital mental disorders was estimated to be 17.2%. Conclusions Husbands' externalising disorders had a modest but consistent association with marital violence across diverse countries. This finding has implications for the development of targeted interventions to reduce risk of marital violence.002B18F01Trouble psychiatrique01Mental disorder01Trastorno psiquiátrico01Facteur risque02Risk factor02Factor riesgo02Violence conjugale03Intimate partner violence03Violencia en las relaciones de pareja03International04International04Internacional04Relation conjugale05Marital relation05Relación conyugal05Santé publique06Public health06Salud pública06Santé mentale07Mental health07Salud mental07Environnement social08Social environment08Contexto social08Homme18Human18Hombre18Interaction sociale37Social interaction37Interacción social37Victimologie38Victimology38Victimologia38072PASCAL 12-0095826 INISTPremarital mental disorders and physical violence in marriage: cross-national study of married couplesMILLER (E.); BRESLAU (J.); PETUKHOVA (M.); FAYYAD (J.); GREIF GREEN (J.); KOLA (L.); SEEDAT (S.); STEIN (D. J.); TSANG (A.); VIANA (M. C.); ANDRADE (L. H.); DEMYTTENAERE (K.); DE GIROLAMO (G.); HARO (J. M.); HU (C.); KARAM (E. G.); KOVESS-MASFETY (V.); TOMOV (T.); KESSLER (R. C.)Adolescent Medicine, Department of Pediatrics, Children's Hospital of Pittsburgh/Pittsburgh, Pennsylvania/Etats-Unis (1 aut.); RAND Corporation/Pittsburgh, Pennsylvania/Etats-Unis (2 aut.); Department of Health Care Policy, Harvard Medical School/Boston, Massachusetts/Etats-Unis (3 aut.); Institute for Development, Research, Advocacy and Applied Care (IDRAAC), Department of Psychiatry and Clinical Psychology, St George Hospital University Medical Centre and Faculty of Medicine, Balamand University/Beirut/Liban (4 aut.); School of Education, Boston University/Boston, Massachusetts/Etats-Unis (5 aut.); Department of Psychiatry, University College Hospital/Ibadan/Nigéria (6 aut.); Medical Research Council Unit on Anxiety and Stress Disorders, Cape Town/Etats-Unis (7 aut.); Department of Psychiatry, University of Cape Town/Cape Town/Afrique du Sud (8 aut.); Hong Kong Mood Disorders Centre, Prince of Wales Hospital/Shatin/Hong-Kong (9 aut.); Section of Psychiatric Epidemiology, Institute of Psychiatry, School of Medicine, University of Sao Paulo/São Paulo/Brésil (10 aut.); Section of Psychiatric Epidemiology and Institute of Psychiatry, School of Medicine, University of São Paulo/Brésil (11 aut.); Department of Psychiatry, University Hospital Gasthuisberg/Leuven/Belgique (12 aut.); Istituto di Recovero e Cura a Carattere Scientifico/Brescia/Italie (13 aut.); Parc Sanitari Sant Joan de Déu, Centro de Investigación Biomedica en Red de Salud Mental/Barcelona/Espagne (14 aut.); Shenzhen Institute of Mental Health and Shenzhen Kangning Hospital/Shenzhen/Chine (15 aut.); George Hospital University Medical Centre, Balamand University, Faculty of Medicine, Institute for Development, Research, Advocacy & Applied Care (IDRAAC), Medical Institute for Neuropsychological Disorders (MIND)/Beirut/Liban (16 aut.); MD, EA 4069 Unlverslté Paris Descartes and Ecole des Hautes Etudes en Santé Publique, School of Public Health, Department of Epidemiology/Paris/France (17 aut.); New Bulgarian University, Institute for Human Relations/Sofia/Bulgarie (18 aut.); Department of Health Care Policy, Harvard Medical School/Boston, Massachusetts/Etats-Unis (19 aut.)
Publication en série; Niveau analytique
British journal of psychiatry : (Print); ISSN 0007-1250; Coden BJPYAJ; Royaume-Uni; Da. 2011; Vol. 199; No. OCT; Pp. 330-337; Bibl. 39 ref.AnglaisBackground Mental disorders may increase the risk of physical violence among married couples. Aims To estimate associations between premarital mental disorders and marital violence in a cross-national sample of married couples. Method A total of 1821 married couples (3642 individuals) from 11 countries were interviewed as part of the World Health Organization's World Mental Health Survey Initiative. Sixteen mental disorders with onset prior to marriage were examined as predictors of marital violence reported by either spouse. Results Any physical violence was reported by one or both spouses in 20% of couples, and was associated with husbands' externalising disorders (OR=1.7, 95% CI 1.2-2.3). Overall, the population attributable risk for marital violence related to premarital mental disorders was estimated to be 17.2%. Conclusions Husbands' externalising disorders had a modest but consistent association with marital violence across diverse countries. This finding has implications for the development of targeted interventions to reduce risk of marital violence.002B18F01Trouble psychiatrique; Facteur risque; Violence conjugale; International; Relation conjugale; Santé publique; Santé mentale; Environnement social; HommeInteraction sociale; VictimologieMental disorder; Risk factor; Intimate partner violence; International; Marital relation; Public health; Mental health; Social environment; HumanSocial interaction; VictimologyTrastorno psiquiátrico; Factor riesgo; Violencia en las relaciones de pareja; Internacional; Relación conyugal; Salud pública; Salud mental; Contexto social; HombreINIST-3999.35400019125104013012-0095826 001B93 Stabilization for an ensemble of half-spin systemsKarine BeauchardCMIA, ENS Cachan, CNRS, UniverSud, 61, avenue du Président Wilson94230 CachanFRA1 aut.Paulo Sergio Pereira Da SilvaEscola Politécnica da USP, PTC Cep 05508-900São Paulo, SPBRA2 aut.Pierre RouchonMines ParisTech, Centre Automatique et Systèmes, Unité Mathématiques et Systèmes, 60 Bd Saint-Michel75272 ParisFRA3 aut.12-00962462012PASCAL 12-0096246 INISTPascal:12-0096246000D030005-1098Automatica : (Oxf.)Automatica : (Oxford)Asymptotic approximationAsymptotic stabilityBloch equationsContinuous spectrumFeedbackInfinite dimensionInfinite systemInitial conditionsInvariance principlesInvariantLyapunov functionModellingNon linear controlNonlinear systemsNuclear spinOutput feedbackQuantum mechanicsSet computationStabilizationStrong convergenceTopologyWeak convergenceStabilisationBoucle réactionCommande retour sortieMécanique quantiqueSystème infiniStabilité asymptotiqueCommande non linéaireEquation BlochSpin nucléaireConvergence faibleModélisationConvergence forteDimension infinieTopologieApproximation asymptotiquePrincipe invarianceInvariantSpectre continuSystème non linéaireFonction LyapunovCalcul ensemblisteCondition initiale
Feedback stabilization of an ensemble of non interacting half spins described by the Bloch equations is considered. This system may be seen as an interesting example for infinite dimensional systems with continuous spectra. We propose an explicit feedback law that stabilizes asymptotically the system around a uniform state of spin +1/2 or -1/2. The proof of the convergence is done locally around the equilibrium in the H1 topology. This local convergence is shown to be a weak asymptotic convergence for the H1 topology and thus a strong convergence for the C0 topology. The proof relies on an adaptation of the LaSalle invariance principle to infinite dimensional systems. Numerical simulations illustrate the efficiency of these feedback laws, even for initial conditions far from the equilibrium.
0005-1098ATCAA9Automatica : (Oxf.)481Stabilization for an ensemble of half-spin systemsBEAUCHARD (Karine)PEREIRA DA SILVA (Paulo Sergio)ROUCHON (Pierre)CMIA, ENS Cachan, CNRS, UniverSud, 61, avenue du Président Wilson94230 CachanFRA1 aut.Escola Politécnica da USP, PTC Cep 05508-900São Paulo, SPBRA2 aut.Mines ParisTech, Centre Automatique et Systèmes, Unité Mathématiques et Systèmes, 60 Bd Saint-Michel75272 ParisFRA3 aut.68-762012ENGINIST94143540005060882800700000© 2012 INIST-CNRS. All rights reserved.1/4 p.12-0096246PAAutomatica : (Oxford)GBRFeedback stabilization of an ensemble of non interacting half spins described by the Bloch equations is considered. This system may be seen as an interesting example for infinite dimensional systems with continuous spectra. We propose an explicit feedback law that stabilizes asymptotically the system around a uniform state of spin +1/2 or -1/2. The proof of the convergence is done locally around the equilibrium in the H1 topology. This local convergence is shown to be a weak asymptotic convergence for the H1 topology and thus a strong convergence for the C0 topology. The proof relies on an adaptation of the LaSalle invariance principle to infinite dimensional systems. Numerical simulations illustrate the efficiency of these feedback laws, even for initial conditions far from the equilibrium.001B20A10H001D02D07Stabilisation06Stabilization06Boucle réaction07Feedback07Commande retour sortie08Output feedback08Bucle realimentación salida08Mécanique quantique09Quantum mechanics09Système infini10Infinite system10Sistema infinito10Stabilité asymptotique11Asymptotic stability11Commande non linéaire12Non linear control12Control no lineal12Equation Bloch23Bloch equations23Spin nucléaire24Nuclear spin24Convergence faible25Weak convergence25Convergencia débil25Modélisation26Modelling26Convergence forte27Strong convergence27Convergencia fuerte27Dimension infinie28Infinite dimension28Dimensión infinita28Topologie29Topology29Approximation asymptotique30Asymptotic approximation30Aproximación asintótica30Principe invariance31Invariance principles31Invariant32Invariant32Invariante32Spectre continu33Continuous spectrum33Espectro contínuo33Système non linéaire34Nonlinear systems34Fonction Lyapunov35Lyapunov function35Función Lyapunov35Calcul ensembliste36Set computation36Calcúlo conjunto36Condition initiale41Initial conditions41072OTOOTOPASCAL 12-0096246 INISTStabilization for an ensemble of half-spin systemsBEAUCHARD (Karine); PEREIRA DA SILVA (Paulo Sergio); ROUCHON (Pierre)CMIA, ENS Cachan, CNRS, UniverSud, 61, avenue du Président Wilson/94230 Cachan/France (1 aut.); Escola Politécnica da USP, PTC Cep 05508-900/São Paulo, SP/Brésil (2 aut.); Mines ParisTech, Centre Automatique et Systèmes, Unité Mathématiques et Systèmes, 60 Bd Saint-Michel/75272 Paris/France (3 aut.)
Publication en série; Niveau analytique
Automatica : (Oxford); ISSN 0005-1098; Coden ATCAA9; Royaume-Uni; Da. 2012; Vol. 48; No. 1; Pp. 68-76; Bibl. 1/4 p.AnglaisFeedback stabilization of an ensemble of non interacting half spins described by the Bloch equations is considered. This system may be seen as an interesting example for infinite dimensional systems with continuous spectra. We propose an explicit feedback law that stabilizes asymptotically the system around a uniform state of spin +1/2 or -1/2. The proof of the convergence is done locally around the equilibrium in the H1 topology. This local convergence is shown to be a weak asymptotic convergence for the H1 topology and thus a strong convergence for the C0 topology. The proof relies on an adaptation of the LaSalle invariance principle to infinite dimensional systems. Numerical simulations illustrate the efficiency of these feedback laws, even for initial conditions far from the equilibrium.001B20A10H; 001D02D07Stabilisation; Boucle réaction; Commande retour sortie; Mécanique quantique; Système infini; Stabilité asymptotique; Commande non linéaire; Equation Bloch; Spin nucléaire; Convergence faible; Modélisation; Convergence forte; Dimension infinie; Topologie; Approximation asymptotique; Principe invariance; Invariant; Spectre continu; Système non linéaire; Fonction Lyapunov; Calcul ensembliste; Condition initialeStabilization; Feedback; Output feedback; Quantum mechanics; Infinite system; Asymptotic stability; Non linear control; Bloch equations; Nuclear spin; Weak convergence; Modelling; Strong convergence; Infinite dimension; Topology; Asymptotic approximation; Invariance principles; Invariant; Continuous spectrum; Nonlinear systems; Lyapunov function; Set computation; Initial conditionsBucle realimentación salida; Sistema infinito; Control no lineal; Convergencia débil; Convergencia fuerte; Dimensión infinita; Aproximación asintótica; Invariante; Espectro contínuo; Función Lyapunov; Calcúlo conjuntoINIST-9414.35400050608828007012-0096246 001B94 Novel findings in the cephalic phase of digestion: A role for microcirculation?Caroline BussState University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.Luiz Guilherme Kraemer-AguiarState University of Rio de Janeiro, Department of Internal Medicine, EndocrinologyRio de Janeiro, RJBRA2 aut.Priscila A. MaranhaoState University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.Carolina MarinhoState University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.Maria Das Graças C. De SouzaState University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.Nicolas WiernspergerINSERM U1060, CarMeN Laboratory, INSA LyonFRA6 aut.Eliete BouskelaState University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.12-01008672012PASCAL 12-0100867 INISTPascal:12-0100867000D02FRANCIS 12-0100867 INIST0031-9384Physiol. behav.Physiology & behaviorDigestionInsulinMicrocirculationPancreatic polypeptideRecruitmentDigestionMicrocirculationInsulinePolypeptide pancréatiqueRecrutement
The cephalic phase of digestion (CPD) has been extensively investigated in terms of digestion and metabolism. Nevertheless, microcirculatory changes required to prepare peripheral tissues in order to dispose nutrients have never been assessed. In this study, microvascular function has been evaluated to determine its behavior and potential association to hormonal secretions during CPD. Thirty-nine healthy male subjects, 23.4 ± 0.5 years (meal ± SD) and BMI of 23.3 ± 2.3 kg/m2, were randomized into receiving cognitive-sensorial stimuli to elicit CPD (CPD group, n = 20) or not (control group, n = 19), after a 12-h overnight fast. Main outcomes were differences in resting and peak functional capillary density (FCD, cap/mm2); resting red blood cell velocity (RBCV), peak RBCV (RBCVmax) and time taken to reach it (TRBCVmax); peak flow and vasomotion, before and after CPD and their associations with insulin and/or pancreatic polypeptide (PP). In the CPD group, basal FCD (24.9 ± 7.6 to 28.3 ± 8.1, p=0.005), peak FCD (27.8 ± 6.3 to 32.6 ± 7.1, p=0.002), RBCV (0.306 ± 0.031 to 0.330 ± 0.027 mm/s, p = 0.005), RBCVmax (0.336 ± 0.029 to 0.398 ± 0.292 mm/s, p = 0.005) and peak flow (23.5 ± 14.3 to 26.9 ± 15.8 PU, p <0.01 ) increased while TRBCVmax decreased (4.9 ± 1.5 to 3.5 ± 1.2 s, p =0.01). No significant changes could be detected in the control group. Groups have not presented differences for insulin, but PP significantly increased in the CPD group and was positively associated to basal FCD increase (rho=0.527, p=0.03). In conclusion, neurally-mediated anticipatory responses of digestion elicited functional capillary recruitment associated to PP in healthy men, suggesting a precocious role for microcirculation in the physiology of digestion and nutrient homeostasis.
0031-9384Physiol. behav.1054Novel findings in the cephalic phase of digestion: A role for microcirculation?BUSS (Caroline)GUILHERME KRAEMER-AGUIAR (Luiz)MARANHAO (Priscila A.)MARINHO (Carolina)DE SOUZA (Maria Das Graças C.)WIERNSPERGER (Nicolas)BOUSKELA (Eliete)State University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)Rio de Janeiro, RJBRA1 aut.3 aut.4 aut.5 aut.7 aut.State University of Rio de Janeiro, Department of Internal Medicine, EndocrinologyRio de Janeiro, RJBRA2 aut.INSERM U1060, CarMeN Laboratory, INSA LyonFRA6 aut.1082-10872012ENGINIST128763540005028046102400000© 2012 INIST-CNRS. All rights reserved.43 ref.12-0100867PAPhysiology & behaviorNLDThe cephalic phase of digestion (CPD) has been extensively investigated in terms of digestion and metabolism. Nevertheless, microcirculatory changes required to prepare peripheral tissues in order to dispose nutrients have never been assessed. In this study, microvascular function has been evaluated to determine its behavior and potential association to hormonal secretions during CPD. Thirty-nine healthy male subjects, 23.4 ± 0.5 years (meal ± SD) and BMI of 23.3 ± 2.3 kg/m2, were randomized into receiving cognitive-sensorial stimuli to elicit CPD (CPD group, n = 20) or not (control group, n = 19), after a 12-h overnight fast. Main outcomes were differences in resting and peak functional capillary density (FCD, cap/mm2); resting red blood cell velocity (RBCV), peak RBCV (RBCVmax) and time taken to reach it (TRBCVmax); peak flow and vasomotion, before and after CPD and their associations with insulin and/or pancreatic polypeptide (PP). In the CPD group, basal FCD (24.9 ± 7.6 to 28.3 ± 8.1, p=0.005), peak FCD (27.8 ± 6.3 to 32.6 ± 7.1, p=0.002), RBCV (0.306 ± 0.031 to 0.330 ± 0.027 mm/s, p = 0.005), RBCVmax (0.336 ± 0.029 to 0.398 ± 0.292 mm/s, p = 0.005) and peak flow (23.5 ± 14.3 to 26.9 ± 15.8 PU, p <0.01 ) increased while TRBCVmax decreased (4.9 ± 1.5 to 3.5 ± 1.2 s, p =0.01). No significant changes could be detected in the control group. Groups have not presented differences for insulin, but PP significantly increased in the CPD group and was positively associated to basal FCD increase (rho=0.527, p=0.03). In conclusion, neurally-mediated anticipatory responses of digestion elicited functional capillary recruitment associated to PP in healthy men, suggesting a precocious role for microcirculation in the physiology of digestion and nutrient homeostasis.002A26CDigestion01Digestion01Digestión01Microcirculation02Microcirculation02Microcirculación02Insuline03Insulin03Insulina03Polypeptide pancréatique04Pancreatic polypeptide04Polipéptido pancreático04Recrutement05Recruitment05Contratación05Hormone pancréatique37Pancreatic hormone37Hormona pancreática37079OTOOTOPASCAL 12-0100867 INISTNovel findings in the cephalic phase of digestion: A role for microcirculation?BUSS (Caroline); GUILHERME KRAEMER-AGUIAR (Luiz); MARANHAO (Priscila A.); MARINHO (Carolina); DE SOUZA (Maria Das Graças C.); WIERNSPERGER (Nicolas); BOUSKELA (Eliete)State University of Rio de Janeiro, Biomedical Center, Clinical and Experimental Research Laboratory on Vascular Biology (BioVasc)/Rio de Janeiro, RJ/Brésil (1 aut., 3 aut., 4 aut., 5 aut., 7 aut.); State University of Rio de Janeiro, Department of Internal Medicine, Endocrinology/Rio de Janeiro, RJ/Brésil (2 aut.); INSERM U1060, CarMeN Laboratory, INSA Lyon/France (6 aut.)
Publication en série; Niveau analytique
Physiology & behavior; ISSN 0031-9384; Pays-Bas; Da. 2012; Vol. 105; No. 4; Pp. 1082-1087; Bibl. 43 ref.AnglaisThe cephalic phase of digestion (CPD) has been extensively investigated in terms of digestion and metabolism. Nevertheless, microcirculatory changes required to prepare peripheral tissues in order to dispose nutrients have never been assessed. In this study, microvascular function has been evaluated to determine its behavior and potential association to hormonal secretions during CPD. Thirty-nine healthy male subjects, 23.4 ± 0.5 years (meal ± SD) and BMI of 23.3 ± 2.3 kg/m2, were randomized into receiving cognitive-sensorial stimuli to elicit CPD (CPD group, n = 20) or not (control group, n = 19), after a 12-h overnight fast. Main outcomes were differences in resting and peak functional capillary density (FCD, cap/mm2); resting red blood cell velocity (RBCV), peak RBCV (RBCVmax) and time taken to reach it (TRBCVmax); peak flow and vasomotion, before and after CPD and their associations with insulin and/or pancreatic polypeptide (PP). In the CPD group, basal FCD (24.9 ± 7.6 to 28.3 ± 8.1, p=0.005), peak FCD (27.8 ± 6.3 to 32.6 ± 7.1, p=0.002), RBCV (0.306 ± 0.031 to 0.330 ± 0.027 mm/s, p = 0.005), RBCVmax (0.336 ± 0.029 to 0.398 ± 0.292 mm/s, p = 0.005) and peak flow (23.5 ± 14.3 to 26.9 ± 15.8 PU, p <0.01 ) increased while TRBCVmax decreased (4.9 ± 1.5 to 3.5 ± 1.2 s, p =0.01). No significant changes could be detected in the control group. Groups have not presented differences for insulin, but PP significantly increased in the CPD group and was positively associated to basal FCD increase (rho=0.527, p=0.03). In conclusion, neurally-mediated anticipatory responses of digestion elicited functional capillary recruitment associated to PP in healthy men, suggesting a precocious role for microcirculation in the physiology of digestion and nutrient homeostasis.002A26CDigestion; Microcirculation; Insuline; Polypeptide pancréatique; RecrutementHormone pancréatiqueDigestion; Microcirculation; Insulin; Pancreatic polypeptide; RecruitmentPancreatic hormoneDigestión; Microcirculación; Insulina; Polipéptido pancreático; ContrataciónINIST-12876.35400050280461024012-0100867 001B95 Dynamical evolution of a magnetic cloud from the Sun to 5.4 AUM. S. NakwackiInstituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São PauloBRA1 aut.Instituto de Astronomia y Fisica del EspacioCONICET-UBAARG1 aut.2 aut.4 aut.5 aut.S. DassoInstituto de Astronomia y Fisica del EspacioCONICET-UBAARG1 aut.2 aut.4 aut.5 aut.Departamento de Física, Facultad de Ciencias Exactas y NaturalesUBAARG2 aut.P. OemoulinObservatoire de Paris, LESIA, UMR 8109 CNRS92195 Meudon PrincipalFRA3 aut.C. H. MandriniInstituto de Astronomia y Fisica del EspacioCONICET-UBAARG1 aut.2 aut.4 aut.5 aut.Facultad de Ciencias Exactas y NaturalesFCEN, UBAARG4 aut.5 aut.A. M. GulisanoInstituto de Astronomia y Fisica del EspacioCONICET-UBAARG1 aut.2 aut.4 aut.5 aut.Facultad de Ciencias Exactas y NaturalesFCEN, UBAARG4 aut.5 aut.12-01009902011PASCAL 12-0100990 INISTPascal:12-0100990000D010004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Aspect ratioCoronal mass ejectionCross sectionsDeformationDynamical evolutionFlux ropeHelicityHeliosphereIntensityInterplanetary matterInterstellar matterInvariantMagnetic cloudMagnetic energyMagnetic field configurationsMagnetic fieldsMagnetic fluxMagnetic forcesMagnetohydrodynamicsModelsPlasmaSolar windSunTopologyEvolution dynamiqueNuage magnétiqueSoleilPlasmaMatière interstellaireMatière interplanétaireEjection masse coronaleFlux magnétiqueCorde fluxVent solaireForce magnétiqueChamp magnétiqueIntensitéInvariantConfiguration champ magnétiqueModèleHélicitéDéformationSection efficaceRapport aspectEnergie magnétiqueMagnétohydrodynamiqueHéliosphèreTopologie
Context. Significant quantities of magnetized plasma are transported from the Sun to the interstellar medium via interplanetary coronal mass ejections (ICMEs). Magnetic clouds (MCs) are a particular subset of ICMEs, forming large-scale magnetic flux ropes. Their evolution in the solar wind is complex and mainly determined by their own magnetic forces and the interaction with the surrounding solar wind. Aims. Magnetic clouds are strongly affected by the surrounding environment as they evolve in the solar wind. We study expansion of MCs, its consequent decrease in magnetic field intensity and mass density, and the possible evolution of the so-called global ideal-MHD invariants. Methods. In this work we analyze the evolution of a particular MC (observed in March 1998) using in situ observations made by two spacecraft approximately aligned with the Sun, the first one at 1 AU from the Sun and the second one at 5.4 AU. We describe the magnetic configuration of the MC using different models and compute relevant global quantities (magnetic fluxes, helicity, and energy) at both heliodistances. We also tracked this structure back to the Sun, to find out its solar source. Results. We find that the flux rope is significantly distorted at 5.4 AU. From the observed decay of magnetic field and mass density, we quantify how anisotropic is the expansion and the consequent deformation of the flux rope in favor of a cross section with an aspect ratio at 5.4 AU of ≃ 1.6 (larger in the direction perpendicular to the radial direction from the Sun). We quantify the ideal-MHD invariants and magnetic energy at both locations, and find that invariants are almost conserved, while the magnetic energy decays as expected with the expansion rate found. Conclusions. The use of MHD invariants to link structures at the Sun and the interplanetary medium is supported by the results of this multi-spacecraft study. We also conclude that the local dimensionless expansion rate, which is computed from the velocity profile observed by a single-spacecraft, is very accurate for predicting the evolution of flux ropes in the solar wind.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)535p. 1Dynamical evolution of a magnetic cloud from the Sun to 5.4 AUNAKWACKI (M. S.)DASSO (S.)OEMOULIN (P.)MANDRINI (C. H.)GULISANO (A. M.)Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São PauloBRA1 aut.Instituto de Astronomia y Fisica del EspacioCONICET-UBAARG1 aut.2 aut.4 aut.5 aut.Departamento de Física, Facultad de Ciencias Exactas y NaturalesUBAARG2 aut.Observatoire de Paris, LESIA, UMR 8109 CNRS92195 Meudon PrincipalFRA3 aut.Facultad de Ciencias Exactas y NaturalesFCEN, UBAARG4 aut.5 aut.A52.1-A52.162011ENGINIST141763540005067519905100000© 2012 INIST-CNRS. All rights reserved.3/4 p.12-0100990PAAstronomy and astrophysics : (Berlin. Print)FRAContext. Significant quantities of magnetized plasma are transported from the Sun to the interstellar medium via interplanetary coronal mass ejections (ICMEs). Magnetic clouds (MCs) are a particular subset of ICMEs, forming large-scale magnetic flux ropes. Their evolution in the solar wind is complex and mainly determined by their own magnetic forces and the interaction with the surrounding solar wind. Aims. Magnetic clouds are strongly affected by the surrounding environment as they evolve in the solar wind. We study expansion of MCs, its consequent decrease in magnetic field intensity and mass density, and the possible evolution of the so-called global ideal-MHD invariants. Methods. In this work we analyze the evolution of a particular MC (observed in March 1998) using in situ observations made by two spacecraft approximately aligned with the Sun, the first one at 1 AU from the Sun and the second one at 5.4 AU. We describe the magnetic configuration of the MC using different models and compute relevant global quantities (magnetic fluxes, helicity, and energy) at both heliodistances. We also tracked this structure back to the Sun, to find out its solar source. Results. We find that the flux rope is significantly distorted at 5.4 AU. From the observed decay of magnetic field and mass density, we quantify how anisotropic is the expansion and the consequent deformation of the flux rope in favor of a cross section with an aspect ratio at 5.4 AU of ≃ 1.6 (larger in the direction perpendicular to the radial direction from the Sun). We quantify the ideal-MHD invariants and magnetic energy at both locations, and find that invariants are almost conserved, while the magnetic energy decays as expected with the expansion rate found. Conclusions. The use of MHD invariants to link structures at the Sun and the interplanetary medium is supported by the results of this multi-spacecraft study. We also conclude that the local dimensionless expansion rate, which is computed from the velocity profile observed by a single-spacecraft, is very accurate for predicting the evolution of flux ropes in the solar wind.001E03Evolution dynamique26Dynamical evolution26Evolución dinámica26Nuage magnétique27Magnetic cloud27Nube magnetica27Soleil28Sun28Plasma29Plasma29Matière interstellaire30Interstellar matter30Matière interplanétaire31Interplanetary matter31Ejection masse coronale32Coronal mass ejection32Eyección masa coronal32Flux magnétique33Magnetic flux33Corde flux34Flux rope34Cuerda flujo34Vent solaire35Solar wind35Force magnétique36Magnetic forces36Champ magnétique37Magnetic fields37Intensité38Intensity38Intensidad38Invariant39Invariant39Invariante39Configuration champ magnétique40Magnetic field configurations40Modèle41Models41Modelo41Hélicité42Helicity42Déformation43Deformation43Section efficace44Cross sections44Rapport aspect45Aspect ratio45Energie magnétique46Magnetic energy46Energía magnética46Magnétohydrodynamique47Magnetohydrodynamics47Héliosphère48Heliosphere48Topologie49Topology49079OTOOTOPASCAL 12-0100990 INISTDynamical evolution of a magnetic cloud from the Sun to 5.4 AUNAKWACKI (M. S.); DASSO (S.); OEMOULIN (P.); MANDRINI (C. H.); GULISANO (A. M.)Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo/Brésil (1 aut.); Instituto de Astronomia y Fisica del Espacio/CONICET-UBA/Argentine (1 aut., 2 aut., 4 aut., 5 aut.); Departamento de Física, Facultad de Ciencias Exactas y Naturales/UBA/Argentine (2 aut.); Observatoire de Paris, LESIA, UMR 8109 CNRS/92195 Meudon Principal/France (3 aut.); Facultad de Ciencias Exactas y Naturales/FCEN, UBA/Argentine (4 aut., 5 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2011; Vol. 535; No. p. 1; A52.1-A52.16; Bibl. 3/4 p.AnglaisContext. Significant quantities of magnetized plasma are transported from the Sun to the interstellar medium via interplanetary coronal mass ejections (ICMEs). Magnetic clouds (MCs) are a particular subset of ICMEs, forming large-scale magnetic flux ropes. Their evolution in the solar wind is complex and mainly determined by their own magnetic forces and the interaction with the surrounding solar wind. Aims. Magnetic clouds are strongly affected by the surrounding environment as they evolve in the solar wind. We study expansion of MCs, its consequent decrease in magnetic field intensity and mass density, and the possible evolution of the so-called global ideal-MHD invariants. Methods. In this work we analyze the evolution of a particular MC (observed in March 1998) using in situ observations made by two spacecraft approximately aligned with the Sun, the first one at 1 AU from the Sun and the second one at 5.4 AU. We describe the magnetic configuration of the MC using different models and compute relevant global quantities (magnetic fluxes, helicity, and energy) at both heliodistances. We also tracked this structure back to the Sun, to find out its solar source. Results. We find that the flux rope is significantly distorted at 5.4 AU. From the observed decay of magnetic field and mass density, we quantify how anisotropic is the expansion and the consequent deformation of the flux rope in favor of a cross section with an aspect ratio at 5.4 AU of ≃ 1.6 (larger in the direction perpendicular to the radial direction from the Sun). We quantify the ideal-MHD invariants and magnetic energy at both locations, and find that invariants are almost conserved, while the magnetic energy decays as expected with the expansion rate found. Conclusions. The use of MHD invariants to link structures at the Sun and the interplanetary medium is supported by the results of this multi-spacecraft study. We also conclude that the local dimensionless expansion rate, which is computed from the velocity profile observed by a single-spacecraft, is very accurate for predicting the evolution of flux ropes in the solar wind.001E03Evolution dynamique; Nuage magnétique; Soleil; Plasma; Matière interstellaire; Matière interplanétaire; Ejection masse coronale; Flux magnétique; Corde flux; Vent solaire; Force magnétique; Champ magnétique; Intensité; Invariant; Configuration champ magnétique; Modèle; Hélicité; Déformation; Section efficace; Rapport aspect; Energie magnétique; Magnétohydrodynamique; Héliosphère; TopologieDynamical evolution; Magnetic cloud; Sun; Plasma; Interstellar matter; Interplanetary matter; Coronal mass ejection; Magnetic flux; Flux rope; Solar wind; Magnetic forces; Magnetic fields; Intensity; Invariant; Magnetic field configurations; Models; Helicity; Deformation; Cross sections; Aspect ratio; Magnetic energy; Magnetohydrodynamics; Heliosphere; TopologyEvolución dinámica; Nube magnetica; Eyección masa coronal; Cuerda flujo; Intensidad; Invariante; Modelo; Energía magnéticaINIST-14176.35400050675199051012-0100990 001B96 Expanding Nilotinib Access in Clinical Trials (ENACT): An Open-Label, Multicenter Study of Oral Nilotinib in Adult Patients With Imatinib-Resistant or Imatinib-Intolerant Philadelphia Chromosome-Positive Chronic Myeloid Leukemia in the Chronic PhaseFranck E. NicoliniDepartment of Hematology, Edouard Herriot HospitalLyonFRA1 aut.Anna TurkinaHematology Research CenterMoscowRUS2 aut.Zhi-Xiang ShenHematology Department, Shanghai Ruijin HospitalShanghaiCHN3 aut.Neil GallagherNovartis Pharma AGBaselCHE4 aut.Saengsuree JootarHematology Department, Ramathibodi Hospital, Mahidol UniversityBangkokTHA5 aut.Bayard L. PowellComprehensive Cancer Center of Wake Forest UniversityWinston-Salem, North CarolinaUSA6 aut.Carmino De SouzaHematology and Hemotherapy Center, University of Campinas-SPCampinasBRA7 aut.MING ZHENGNovartis Pharmaceuticals CorporationEast Hanover, New JerseyUSA8 aut.9 aut.Tomasz SzczudloNovartis Pharmaceuticals CorporationEast Hanover, New JerseyUSA8 aut.9 aut.Philipp Le CoutreBerlin Medical Clinic, Hematology and Oncology, Charite UniversityBerlinDEU10 aut.12-01015212012PASCAL 12-0101521 INISTPascal:12-0101521000D000008-543XCancerCancerAbnormal chromosome C9Abnormal chromosome G22AccessibilityAdultAntineoplastic agentC-Onc geneCancerologyChromosome translocationChronicChronic myelogenous leukemiaClinical trialHybrid geneImatinibMulticenter studyNilotinibNon-specific serine/threonine protein kinasePhiladelphia chromosomePhiladelphia positive leukemiaResistancebcr geneNilotinibAccessibilitéEssai cliniqueImatinibEtude multicentriqueAdulteRésistanceLeucémie myéloïde chroniqueChroniqueGène hybrideTranslocation chromosomiqueChromosome C9 anormalChromosome G22 anormalChromosome Ph1Non-specific serine/threonine protein kinaseGène onc cellulaireCancérologieAnticancéreuxGène ablLeucémie à chromosome Philadelphie positifGène bcr
BACKGROUND: Nilotinib is a selective, potent BCR-ABL inhibitor. Previous studies demonstrated the efficacy and safety of nilotinib in Philadelphia chromosome-positive chronic myeloid leukemia patients in chronic phase (CML-CP) or accelerated phase who failed prior imatinib. METHODS: This expanded access trial further characterized the safety of nilotinib 400 mg twice daily in patients with CML-CP (N = 1422). RESULTS: In this large, heavily pretreated population, nilotinib demonstrated significant efficacy, with complete hematologic response and complete cytogenetic response achieved in 43% and 34% of patients, respectively. Responses were rapid, mostly occurring within 6 months, and were higher in patients with suboptimal response to imatinib, with 75% and 50% achieving major cytogenetic response and complete cytogenetic response, respectively. At 18 months, the progression-free survival rate was 80%. Most patients achieved planned dosing of 400 mg twice daily and maintained the dose >12 months. Nonhematologic adverse events (AEs) were mostly mild to moderate and included rash (28%), headache (25%), and nausea (17%). Grade 3 or 4 thrombocytopenia (22%), neutropenia (14%), and anemia (3%) were low and managed by dose reduction or brief interruption. Grade 3 or 4 elevations in serum bilirubin and lipase occurred in 4% and 7% of patients, respectively. The incidence of newly occurring AEs decreased over time. Of patients who experienced a dose reduction because of AEs and attempted a re-escalation, 87% successfully achieved re-escalation to the full dose. CONCLUSIONS: This large study confirms that nilotinib was well tolerated and that grade 3 or 4 AEs occurred infrequently and were manageable through transient dose interruptions.
0008-543XCANCARCancer1181Expanding Nilotinib Access in Clinical Trials (ENACT): An Open-Label, Multicenter Study of Oral Nilotinib in Adult Patients With Imatinib-Resistant or Imatinib-Intolerant Philadelphia Chromosome-Positive Chronic Myeloid Leukemia in the Chronic PhaseNICOLINI (Franck E.)TURKINA (Anna)SHEN (Zhi-Xiang)GALLAGHER (Neil)JOOTAR (Saengsuree)POWELL (Bayard L.)DE SOUZA (Carmino)MING ZHENGSZCZUDLO (Tomasz)LE COUTRE (Philipp)Department of Hematology, Edouard Herriot HospitalLyonFRA1 aut.Hematology Research CenterMoscowRUS2 aut.Hematology Department, Shanghai Ruijin HospitalShanghaiCHN3 aut.Novartis Pharma AGBaselCHE4 aut.Hematology Department, Ramathibodi Hospital, Mahidol UniversityBangkokTHA5 aut.Comprehensive Cancer Center of Wake Forest UniversityWinston-Salem, North CarolinaUSA6 aut.Hematology and Hemotherapy Center, University of Campinas-SPCampinasBRA7 aut.Novartis Pharmaceuticals CorporationEast Hanover, New JerseyUSA8 aut.9 aut.Berlin Medical Clinic, Hematology and Oncology, Charite UniversityBerlinDEU10 aut.118-1262012ENGINIST27013540005088928701600000© 2012 INIST-CNRS. All rights reserved.10 ref.12-0101521PACancerUSABACKGROUND: Nilotinib is a selective, potent BCR-ABL inhibitor. Previous studies demonstrated the efficacy and safety of nilotinib in Philadelphia chromosome-positive chronic myeloid leukemia patients in chronic phase (CML-CP) or accelerated phase who failed prior imatinib. METHODS: This expanded access trial further characterized the safety of nilotinib 400 mg twice daily in patients with CML-CP (N = 1422). RESULTS: In this large, heavily pretreated population, nilotinib demonstrated significant efficacy, with complete hematologic response and complete cytogenetic response achieved in 43% and 34% of patients, respectively. Responses were rapid, mostly occurring within 6 months, and were higher in patients with suboptimal response to imatinib, with 75% and 50% achieving major cytogenetic response and complete cytogenetic response, respectively. At 18 months, the progression-free survival rate was 80%. Most patients achieved planned dosing of 400 mg twice daily and maintained the dose >12 months. Nonhematologic adverse events (AEs) were mostly mild to moderate and included rash (28%), headache (25%), and nausea (17%). Grade 3 or 4 thrombocytopenia (22%), neutropenia (14%), and anemia (3%) were low and managed by dose reduction or brief interruption. Grade 3 or 4 elevations in serum bilirubin and lipase occurred in 4% and 7% of patients, respectively. The incidence of newly occurring AEs decreased over time. Of patients who experienced a dose reduction because of AEs and attempted a re-escalation, 87% successfully achieved re-escalation to the full dose. CONCLUSIONS: This large study confirms that nilotinib was well tolerated and that grade 3 or 4 AEs occurred infrequently and were manageable through transient dose interruptions.002B04002B19BNilotinibFR01NilotinibFR01NilotinibFR01Accessibilité02Accessibility02Accesibilidad02Essai clinique03Clinical trial03Ensayo clínico03ImatinibFR04ImatinibFR04ImatinibFR04Etude multicentrique05Multicenter study05Estudio multicéntrico05Adulte06Adult06Adulto06Résistance09Resistance09Resistencia09Leucémie myéloïde chronique11Chronic myelogenous leukemia11Leucemia mieloidea crónica11Chronique12Chronic12Crónico12Gène hybride17Hybrid gene17Gen híbrido17Translocation chromosomique18Chromosome translocation18Translocación cromosómica18Chromosome C9 anormal19Abnormal chromosome C919Cromosoma C9 anormal19Chromosome G22 anormal20Abnormal chromosome G2220Cromosoma G22 anormal20Chromosome Ph121Philadelphia chromosome21Cromosoma Ph121Non-specific serine/threonine protein kinaseFE22Non-specific serine/threonine protein kinaseFE22Non-specific serine/threonine protein kinaseFE22Gène onc cellulaire23C-Onc gene23Gen onc celular23Cancérologie24Cancerology24Cancerología24Anticancéreux25Antineoplastic agent25Anticanceroso25Gène ablINC86Leucémie à chromosome Philadelphie positifCD96Philadelphia positive leukemiaCD96Gène bcrCD97bcr geneCD97HommeHumanHombreChromosome anormalAbnormal chromosomeCromosoma anormalAberration chromosomiqueChromosomal aberrationAberración cromosómicaTransferasesFETransferasesFETransferasesFEEnzymeFEEnzymeFEEnzimaFEInhibiteur de la tyrosine kinase37Tyrosine kinase inhibitor37Inhibidor tyrosine kinase37Inhibiteur enzyme38Enzyme inhibitor38Inhibidor enzima38Protein-tyrosine kinaseFE39Protein-tyrosine kinaseFE39Protein-tyrosine kinaseFE39Hémopathie maligneNM40Malignant hemopathyNM40Hemopatía malignaNM40CancerNMCancerNMCáncerNMSyndrome myéloprolifératif41Myeloproliferative syndrome41Mieloproliferativo síndrome41079OTOOTOPASCAL 12-0101521 INISTExpanding Nilotinib Access in Clinical Trials (ENACT): An Open-Label, Multicenter Study of Oral Nilotinib in Adult Patients With Imatinib-Resistant or Imatinib-Intolerant Philadelphia Chromosome-Positive Chronic Myeloid Leukemia in the Chronic PhaseNICOLINI (Franck E.); TURKINA (Anna); SHEN (Zhi-Xiang); GALLAGHER (Neil); JOOTAR (Saengsuree); POWELL (Bayard L.); DE SOUZA (Carmino); MING ZHENG; SZCZUDLO (Tomasz); LE COUTRE (Philipp)Department of Hematology, Edouard Herriot Hospital/Lyon/France (1 aut.); Hematology Research Center/Moscow/Russie (2 aut.); Hematology Department, Shanghai Ruijin Hospital/Shanghai/Chine (3 aut.); Novartis Pharma AG/Basel/Suisse (4 aut.); Hematology Department, Ramathibodi Hospital, Mahidol University/Bangkok/Thaïlande (5 aut.); Comprehensive Cancer Center of Wake Forest University/Winston-Salem, North Carolina/Etats-Unis (6 aut.); Hematology and Hemotherapy Center, University of Campinas-SP/Campinas/Brésil (7 aut.); Novartis Pharmaceuticals Corporation/East Hanover, New Jersey/Etats-Unis (8 aut., 9 aut.); Berlin Medical Clinic, Hematology and Oncology, Charite University/Berlin/Allemagne (10 aut.)
Publication en série; Niveau analytique
Cancer; ISSN 0008-543X; Coden CANCAR; Etats-Unis; Da. 2012; Vol. 118; No. 1; Pp. 118-126; Bibl. 10 ref.AnglaisBACKGROUND: Nilotinib is a selective, potent BCR-ABL inhibitor. Previous studies demonstrated the efficacy and safety of nilotinib in Philadelphia chromosome-positive chronic myeloid leukemia patients in chronic phase (CML-CP) or accelerated phase who failed prior imatinib. METHODS: This expanded access trial further characterized the safety of nilotinib 400 mg twice daily in patients with CML-CP (N = 1422). RESULTS: In this large, heavily pretreated population, nilotinib demonstrated significant efficacy, with complete hematologic response and complete cytogenetic response achieved in 43% and 34% of patients, respectively. Responses were rapid, mostly occurring within 6 months, and were higher in patients with suboptimal response to imatinib, with 75% and 50% achieving major cytogenetic response and complete cytogenetic response, respectively. At 18 months, the progression-free survival rate was 80%. Most patients achieved planned dosing of 400 mg twice daily and maintained the dose >12 months. Nonhematologic adverse events (AEs) were mostly mild to moderate and included rash (28%), headache (25%), and nausea (17%). Grade 3 or 4 thrombocytopenia (22%), neutropenia (14%), and anemia (3%) were low and managed by dose reduction or brief interruption. Grade 3 or 4 elevations in serum bilirubin and lipase occurred in 4% and 7% of patients, respectively. The incidence of newly occurring AEs decreased over time. Of patients who experienced a dose reduction because of AEs and attempted a re-escalation, 87% successfully achieved re-escalation to the full dose. CONCLUSIONS: This large study confirms that nilotinib was well tolerated and that grade 3 or 4 AEs occurred infrequently and were manageable through transient dose interruptions.002B04; 002B19BNilotinib; Accessibilité; Essai clinique; Imatinib; Etude multicentrique; Adulte; Résistance; Leucémie myéloïde chronique; Chronique; Gène hybride; Translocation chromosomique; Chromosome C9 anormal; Chromosome G22 anormal; Chromosome Ph1; Non-specific serine/threonine protein kinase; Gène onc cellulaire; Cancérologie; Anticancéreux; Gène abl; Leucémie à chromosome Philadelphie positif; Gène bcrHomme; Chromosome anormal; Aberration chromosomique; Transferases; Enzyme; Inhibiteur de la tyrosine kinase; Inhibiteur enzyme; Protein-tyrosine kinase; Hémopathie maligne; Cancer; Syndrome myéloprolifératifNilotinib; Accessibility; Clinical trial; Imatinib; Multicenter study; Adult; Resistance; Chronic myelogenous leukemia; Chronic; Hybrid gene; Chromosome translocation; Abnormal chromosome C9; Abnormal chromosome G22; Philadelphia chromosome; Non-specific serine/threonine protein kinase; C-Onc gene; Cancerology; Antineoplastic agent; Philadelphia positive leukemia; bcr geneHuman; Abnormal chromosome; Chromosomal aberration; Transferases; Enzyme; Tyrosine kinase inhibitor; Enzyme inhibitor; Protein-tyrosine kinase; Malignant hemopathy; Cancer; Myeloproliferative syndromeNilotinib; Accesibilidad; Ensayo clínico; Imatinib; Estudio multicéntrico; Adulto; Resistencia; Leucemia mieloidea crónica; Crónico; Gen híbrido; Translocación cromosómica; Cromosoma C9 anormal; Cromosoma G22 anormal; Cromosoma Ph1; Non-specific serine/threonine protein kinase; Gen onc celular; Cancerología; AnticancerosoINIST-2701.35400050889287016012-0101521 001B97 Self-Assembly of Amphiphilic Glycoconjugates into Lectin-Adhesive NanoparticlesAlexandre G. Dal BoCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Departamento de Química, Universidade Federal de Santa Catarina88040-900 Florianópolis - SCBRA1 aut.2 aut.Valdir SoldiDepartamento de Química, Universidade Federal de Santa Catarina88040-900 Florianópolis - SCBRA1 aut.2 aut.Fernando C. GiacomelliCentro de Ciencias Naturais e Humanas, Universidade Federal do ABC09210-170 Santo André - SPBRA3 aut.Christophe TraveletCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Bruno JeanCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Isabelle Pignot-PaintrandCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Redouane BorsaliCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Sébastien FortCentre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.12-01039752012PASCAL 12-0103975 INISTPascal:12-0103975000C990743-7463LangmuirLangmuirBiosensorCarbohydrateCatalytic reactionCopperDeviceDiameterDistributionDynamicsLactoseLight scatteringLight transmissionMicelleMonodispersed particleNanoparticleResidueRodSelf assemblySmall angle X ray scatteringSugarSynthesisTransmission electron microscopyVesicleAutoassemblageNanoparticuleSynthèseGlucideBâtonnetCuivreRéaction catalytiqueLactoseDynamiqueTransmission lumièreDiffusion lumièreMicroscopie électronique transmissionDiffusion RX centraleParticule monodisperséeMicelleDiamètreVésiculeDistributionRésiduSucreBiodétecteurDispositif
This work describes the synthesis and self-assembly of carbohydrate-clicked rod-coil amphiphilic systems. Copper-catalyzed Huisgen cycloaddition was efficiently employed to functionalize the hydrophilic extremity of PEG-b-tetra(p-phenylene) conjugates by lactose and N-acetyl-glucosamine ligands. The resulting amphiphilic systems spontaneously self-assembled into nanoparticles when dissolved in aqueous media, as evidenced by dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). The formation of highly monodisperse micelles having a mean diameter of 10 nm was observed for systems containing a PEG 900 core, and a decrease in the hydrophilic moiety (PEG 600) led to the formation of vesicles with a broader size distribution. The presence of carbohydrate residues on the surfaces of the micelles and their ability to establish specific interactions with wheat germ agglutinin (WGA) and peanut agglutinin (PNA) were further highlighted by light-scattering measurements, thus confirming the attractive applications of such sugar micelles in biosensor devices.
0743-7463LANGD5Langmuir282Self-Assembly of Amphiphilic Glycoconjugates into Lectin-Adhesive NanoparticlesDAL BO (Alexandre G.)SOLDI (Valdir)GIACOMELLI (Fernando C.)TRAVELET (Christophe)JEAN (Bruno)PIGNOT-PAINTRAND (Isabelle)BORSALI (Redouane)FORT (Sébastien)Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 5338041 GrenobleFRA1 aut.4 aut.5 aut.6 aut.7 aut.8 aut.Departamento de Química, Universidade Federal de Santa Catarina88040-900 Florianópolis - SCBRA1 aut.2 aut.Centro de Ciencias Naturais e Humanas, Universidade Federal do ABC09210-170 Santo André - SPBRA3 aut.1418-14262012ENGINIST206423540005067406904200000© 2012 INIST-CNRS. All rights reserved.53 ref.12-0103975PALangmuirUSAThis work describes the synthesis and self-assembly of carbohydrate-clicked rod-coil amphiphilic systems. Copper-catalyzed Huisgen cycloaddition was efficiently employed to functionalize the hydrophilic extremity of PEG-b-tetra(p-phenylene) conjugates by lactose and N-acetyl-glucosamine ligands. The resulting amphiphilic systems spontaneously self-assembled into nanoparticles when dissolved in aqueous media, as evidenced by dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). The formation of highly monodisperse micelles having a mean diameter of 10 nm was observed for systems containing a PEG 900 core, and a decrease in the hydrophilic moiety (PEG 600) led to the formation of vesicles with a broader size distribution. The presence of carbohydrate residues on the surfaces of the micelles and their ability to establish specific interactions with wheat germ agglutinin (WGA) and peanut agglutinin (PNA) were further highlighted by light-scattering measurements, thus confirming the attractive applications of such sugar micelles in biosensor devices.001C01J02001C01A03001C01J03001C01J09Autoassemblage01Self assembly01Autoensamble01Nanoparticule02Nanoparticle02Nanopartícula02Synthèse03Synthesis03Síntesis03Glucide04Carbohydrate04Glúcido04Bâtonnet05Rod05Bastoncillo05CuivreNC06CopperNC06CobreNC06Réaction catalytique07Catalytic reaction07Reacción catalítica07LactoseNK08LactoseNK08LactosaNK08Dynamique09Dynamics09Dinámica09Transmission lumière10Light transmission10Transmisión luz10Diffusion lumière11Light scattering11Difusión luz11Microscopie électronique transmission12Transmission electron microscopy12Microscopía electrónica transmisión12Diffusion RX centrale13Small angle X ray scattering13Difusión rayo X central13Particule monodispersée14Monodispersed particle14Partícula monodispersada14Micelle15Micelle15Micela15Diamètre16Diameter16Diámetro16Vésicule17Vesicle17Vesícula17Distribution18Distribution18Distribución18Résidu19Residue19Resíduo19Sucre20Sugar20Azúcar20Biodétecteur21Biosensor21Biodetector21Dispositif22Device22Dispositivo22Métal transitionNC23Transition metalNC23Metal transiciónNC23079OTOOTOPASCAL 12-0103975 INISTSelf-Assembly of Amphiphilic Glycoconjugates into Lectin-Adhesive NanoparticlesDAL BO (Alexandre G.); SOLDI (Valdir); GIACOMELLI (Fernando C.); TRAVELET (Christophe); JEAN (Bruno); PIGNOT-PAINTRAND (Isabelle); BORSALI (Redouane); FORT (Sébastien)Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 53/38041 Grenoble/France (1 aut., 4 aut., 5 aut., 6 aut., 7 aut., 8 aut.); Departamento de Química, Universidade Federal de Santa Catarina/88040-900 Florianópolis - SC/Brésil (1 aut., 2 aut.); Centro de Ciencias Naturais e Humanas, Universidade Federal do ABC/09210-170 Santo André - SP/Brésil (3 aut.)
Publication en série; Niveau analytique
Langmuir; ISSN 0743-7463; Coden LANGD5; Etats-Unis; Da. 2012; Vol. 28; No. 2; Pp. 1418-1426; Bibl. 53 ref.AnglaisThis work describes the synthesis and self-assembly of carbohydrate-clicked rod-coil amphiphilic systems. Copper-catalyzed Huisgen cycloaddition was efficiently employed to functionalize the hydrophilic extremity of PEG-b-tetra(p-phenylene) conjugates by lactose and N-acetyl-glucosamine ligands. The resulting amphiphilic systems spontaneously self-assembled into nanoparticles when dissolved in aqueous media, as evidenced by dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). The formation of highly monodisperse micelles having a mean diameter of 10 nm was observed for systems containing a PEG 900 core, and a decrease in the hydrophilic moiety (PEG 600) led to the formation of vesicles with a broader size distribution. The presence of carbohydrate residues on the surfaces of the micelles and their ability to establish specific interactions with wheat germ agglutinin (WGA) and peanut agglutinin (PNA) were further highlighted by light-scattering measurements, thus confirming the attractive applications of such sugar micelles in biosensor devices.001C01J02; 001C01A03; 001C01J03; 001C01J09Autoassemblage; Nanoparticule; Synthèse; Glucide; Bâtonnet; Cuivre; Réaction catalytique; Lactose; Dynamique; Transmission lumière; Diffusion lumière; Microscopie électronique transmission; Diffusion RX centrale; Particule monodispersée; Micelle; Diamètre; Vésicule; Distribution; Résidu; Sucre; Biodétecteur; DispositifMétal transitionSelf assembly; Nanoparticle; Synthesis; Carbohydrate; Rod; Copper; Catalytic reaction; Lactose; Dynamics; Light transmission; Light scattering; Transmission electron microscopy; Small angle X ray scattering; Monodispersed particle; Micelle; Diameter; Vesicle; Distribution; Residue; Sugar; Biosensor; DeviceTransition metalAutoensamble; Nanopartícula; Síntesis; Glúcido; Bastoncillo; Cobre; Reacción catalítica; Lactosa; Dinámica; Transmisión luz; Difusión luz; Microscopía electrónica transmisión; Difusión rayo X central; Partícula monodispersada; Micela; Diámetro; Vesícula; Distribución; Resíduo; Azúcar; Biodetector; DispositivoINIST-20642.35400050674069042012-0103975 001B98 Direct ethanol fuel cell: Electrochemical performance at 90 °C on Pt and PtSn/C electrocatalystsF. L. S. PurgatoEquipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 63386022 PoitiersFRA1 aut.2 aut.5 aut.7 aut.Departamento de Química da Faculdade de Filosofia, Ciencias e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 390014040-901 Ribeirão PretoBRA1 aut.3 aut.4 aut.S. PronierEquipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 63386022 PoitiersFRA1 aut.2 aut.5 aut.7 aut.P. OliviDepartamento de Química da Faculdade de Filosofia, Ciencias e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 390014040-901 Ribeirão PretoBRA1 aut.3 aut.4 aut.A. R. De AndradeDepartamento de Química da Faculdade de Filosofia, Ciencias e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 390014040-901 Ribeirão PretoBRA1 aut.3 aut.4 aut.J. M. LegerEquipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 63386022 PoitiersFRA1 aut.2 aut.5 aut.7 aut.G. Tremiliosi-FilhoInstituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 78013560-970 Sdo CarlosBRA6 aut.K. B. KokohEquipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 63386022 PoitiersFRA1 aut.2 aut.5 aut.7 aut.12-01055432012PASCAL 12-0105543 INISTPascal:12-0105543000C980378-7753J. power sourcesJournal of power sourcesAlcohol fuel cellsAnodeElectrocatalystsElectrochemical characteristicEthanolExperimental studyFuel cellInfrared spectrometryOxidationPhysicochemical propertiesPower densitySupported catalystPile combustible alcoolCaractéristique électrochimiqueElectrocatalyseurCatalyseur sur supportOxydationPropriété physicochimiqueEtude expérimentaleAnodePuissance volumiqueSpectrométrie IRPile combustibleEthanol
Carbon-supported Pt-based electrocatalysts were synthesized by Pechini method for the ethanol oxidation (EOR). Physicochemical characterizations were helpful to estimate the diameters of the obtained materials ranging from 2 nm to 5 nm. Main electrochemical experiments were carried out at 90 C i.e. under the working conditions of performing the single 5 cm2 direct ethanol fuel cell (DEFC). Pt80Sn20/C was the anode catalyst which has given the highest power density of 37 mW cm-2. Importantly, the IR spectroscopy measurements associated with the qualitative analysis done at the output of the anodic compartment of the fuel cell have shown that ethanol oxidation on Pt80Sn20/C was mainly a two-electron sustainable process.
0378-7753JPSODZJ. power sources198Direct ethanol fuel cell: Electrochemical performance at 90 °C on Pt and PtSn/C electrocatalystsPURGATO (F. L. S.)PRONIER (S.)OLIVI (P.)DE ANDRADE (A. R.)LEGER (J. M.)TREMILIOSI-FILHO (G.)KOKOH (K. B.)Equipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 63386022 PoitiersFRA1 aut.2 aut.5 aut.7 aut.Departamento de Química da Faculdade de Filosofia, Ciencias e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 390014040-901 Ribeirão PretoBRA1 aut.3 aut.4 aut.Instituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 78013560-970 Sdo CarlosBRA6 aut.95-992012ENGINIST171133540005028021401400000© 2012 INIST-CNRS. All rights reserved.42 ref.12-0105543PCCAJournal of power sourcesNLDCarbon-supported Pt-based electrocatalysts were synthesized by Pechini method for the ethanol oxidation (EOR). Physicochemical characterizations were helpful to estimate the diameters of the obtained materials ranging from 2 nm to 5 nm. Main electrochemical experiments were carried out at 90 C i.e. under the working conditions of performing the single 5 cm2 direct ethanol fuel cell (DEFC). Pt80Sn20/C was the anode catalyst which has given the highest power density of 37 mW cm-2. Importantly, the IR spectroscopy measurements associated with the qualitative analysis done at the output of the anodic compartment of the fuel cell have shown that ethanol oxidation on Pt80Sn20/C was mainly a two-electron sustainable process.001D06D03E001D05I03E001C01A03A001C01H08230Pile combustible alcool01Alcohol fuel cells01Caractéristique électrochimique02Electrochemical characteristic02Característica electroquímica02Electrocatalyseur03Electrocatalysts03Catalyseur sur support04Supported catalyst04Catalizador sobre soporte04Oxydation05Oxidation05Oxidación05Propriété physicochimique06Physicochemical properties06Propiedad fisicoquímica06Etude expérimentale07Experimental study07Estudio experimental07Anode08Anode08Anodo08Puissance volumique09Power density09Spectrométrie IR10Infrared spectrometry10Espectrometría IR10Pile combustible11Fuel cell11Pila combustión11EthanolNKFRFX22EthanolNKFRFX22EtanolNKFRFX22079OTOOTOPASCAL 12-0105543 INISTDirect ethanol fuel cell: Electrochemical performance at 90 °C on Pt and PtSn/C electrocatalystsPURGATO (F. L. S.); PRONIER (S.); OLIVI (P.); DE ANDRADE (A. R.); LEGER (J. M.); TREMILIOSI-FILHO (G.); KOKOH (K. B.)Equipe E-lyse, LaCCO-UMR 6503 CNRS, Université de Poitiers, 4 rue Michel Brunet, B27, BP 633/86022 Poitiers/France (1 aut., 2 aut., 5 aut., 7 aut.); Departamento de Química da Faculdade de Filosofia, Ciencias e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900/14040-901 Ribeirão Preto/Brésil (1 aut., 3 aut., 4 aut.); Instituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 780/13560-970 Sdo Carlos/Brésil (6 aut.)
Publication en série; Courte communication, note brève; Niveau analytique
Journal of power sources; ISSN 0378-7753; Coden JPSODZ; Pays-Bas; Da. 2012; Vol. 198; Pp. 95-99; Bibl. 42 ref.AnglaisCarbon-supported Pt-based electrocatalysts were synthesized by Pechini method for the ethanol oxidation (EOR). Physicochemical characterizations were helpful to estimate the diameters of the obtained materials ranging from 2 nm to 5 nm. Main electrochemical experiments were carried out at 90 C i.e. under the working conditions of performing the single 5 cm2 direct ethanol fuel cell (DEFC). Pt80Sn20/C was the anode catalyst which has given the highest power density of 37 mW cm-2. Importantly, the IR spectroscopy measurements associated with the qualitative analysis done at the output of the anodic compartment of the fuel cell have shown that ethanol oxidation on Pt80Sn20/C was mainly a two-electron sustainable process.001D06D03E; 001D05I03E; 001C01A03A; 001C01H08; 230Pile combustible alcool; Caractéristique électrochimique; Electrocatalyseur; Catalyseur sur support; Oxydation; Propriété physicochimique; Etude expérimentale; Anode; Puissance volumique; Spectrométrie IR; Pile combustible; EthanolAlcohol fuel cells; Electrochemical characteristic; Electrocatalysts; Supported catalyst; Oxidation; Physicochemical properties; Experimental study; Anode; Power density; Infrared spectrometry; Fuel cell; EthanolCaracterística electroquímica; Catalizador sobre soporte; Oxidación; Propiedad fisicoquímica; Estudio experimental; Anodo; Espectrometría IR; Pila combustión; EtanolINIST-17113.35400050280214014012-0105543 001B99 Blochmannia endosymbionts and their host, the ant Camponotus fellah: Cuticular hydrocarbons and melanizationDanival José De SouzaIRBI, institut de recherche sur la biologie de l'insecte, UMR CNRS 6035, université François-Rabelais, parc de Grandmont37200 ToursFRA1 aut.2 aut.3 aut.Fundação Universidade Federal do Tocantins, Campus Universitário de Gurupi, Rua Badejós77402-970, Gurupi, TOBRA1 aut.Séverine DeversIRBI, institut de recherche sur la biologie de l'insecte, UMR CNRS 6035, université François-Rabelais, parc de Grandmont37200 ToursFRA1 aut.2 aut.3 aut.Alain LenoirIRBI, institut de recherche sur la biologie de l'insecte, UMR CNRS 6035, université François-Rabelais, parc de Grandmont37200 ToursFRA1 aut.2 aut.3 aut.12-01056382011PASCAL 12-0105638 INISTPascal:12-0105638000C971631-0691C. r., biol.Comptes rendus. BiologiesAnimal microorganism relationAntibioticBacteriaCuticleFormicidaeHydrocarbonMelanizationMutualismSymbiontBactérieSymbionteMutualismeAntibiotiqueHydrocarbureCuticuleMélanisationRelation microorganisme animalFormicidaeCamponotus fellahBlochmannia
Les fourmis charpentières (du genre Camponotus) possèdent des bactéries endosymbiotiques mutualistes du genre Blochmannia qui contribuent à l'alimentation de leurs hôtes. Il a été démontré récemment qu'elles peuvent aussi favoriser les réponses immunitaires. Dans cette étude, nous montrons qu'à la suite d'un traitement antibiotique, les fourmis ont une réponse physiologique induisant la production de plus d'hydrocarbures cuticulaires et une cuticule plus mélanisée. Cela doit permettre une protection contre la perte d'eau et prévenir mieux contre l'intrusion de pathogènes et parasites. Néanmoins, le profil d'hydrocarbures cuticulaires n'est pas modifié par le traitement antibiotique, ce qui permet le maintien de la reconnaissance des congénères du nid.
1631-0691C. r., biol.33410Blochmannia endosymbionts and their host, the ant Camponotus fellah: Cuticular hydrocarbons and melanizationDE SOUZA (Danival José)DEVERS (Séverine)LENOIR (Alain)IRBI, institut de recherche sur la biologie de l'insecte, UMR CNRS 6035, université François-Rabelais, parc de Grandmont37200 ToursFRA1 aut.2 aut.3 aut.Fundação Universidade Federal do Tocantins, Campus Universitário de Gurupi, Rua Badejós77402-970, Gurupi, TOBRA1 aut.737-7412011ENGfreINIST116D3540001912403200600000© 2012 INIST-CNRS. All rights reserved.35 ref.12-0105638PAComptes rendus. BiologiesFRALes fourmis charpentières (du genre Camponotus) possèdent des bactéries endosymbiotiques mutualistes du genre Blochmannia qui contribuent à l'alimentation de leurs hôtes. Il a été démontré récemment qu'elles peuvent aussi favoriser les réponses immunitaires. Dans cette étude, nous montrons qu'à la suite d'un traitement antibiotique, les fourmis ont une réponse physiologique induisant la production de plus d'hydrocarbures cuticulaires et une cuticule plus mélanisée. Cela doit permettre une protection contre la perte d'eau et prévenir mieux contre l'intrusion de pathogènes et parasites. Néanmoins, le profil d'hydrocarbures cuticulaires n'est pas modifié par le traitement antibiotique, ce qui permet le maintien de la reconnaissance des congénères du nid.002A14B02C1Bactérie01Bacteria01Bacteria01Symbionte02Symbiont02Simbionte02Mutualisme03Mutualism03Mutualismo03Antibiotique04Antibiotic04Antibiótico04HydrocarbureFX05HydrocarbonFX05HidrocarburoFX05Cuticule06Cuticle06Cutícula06Mélanisation07Melanization07Melanización07Relation microorganisme animal08Animal microorganism relation08Relación microorganismo animal08FormicidaeNS55FormicidaeNS55FormicidaeNS55Camponotus fellahINC87BlochmanniaINC88Insecte social26Social insect26Insecto social26FormicoideaNSFormicoideaNSFormicoideaNSAculeataNSAculeataNSAculeataNSHymenopteraNSHymenopteraNSHymenopteraNSInsectaNSInsectaNSInsectaNSArthropodaNSArthropodaNSArthropodaNSInvertebrataNSInvertebrataNSInvertebrataNS079PASCAL 12-0105638 INISTBlochmannia endosymbionts and their host, the ant Camponotus fellah: Cuticular hydrocarbons and melanizationDE SOUZA (Danival José); DEVERS (Séverine); LENOIR (Alain)IRBI, institut de recherche sur la biologie de l'insecte, UMR CNRS 6035, université François-Rabelais, parc de Grandmont/37200 Tours/France (1 aut., 2 aut., 3 aut.); Fundação Universidade Federal do Tocantins, Campus Universitário de Gurupi, Rua Badejós/77402-970, Gurupi, TO/Brésil (1 aut.)
Publication en série; Niveau analytique
Comptes rendus. Biologies; ISSN 1631-0691; France; Da. 2011; Vol. 334; No. 10; Pp. 737-741; Abs. français; Bibl. 35 ref.AnglaisLes fourmis charpentières (du genre Camponotus) possèdent des bactéries endosymbiotiques mutualistes du genre Blochmannia qui contribuent à l'alimentation de leurs hôtes. Il a été démontré récemment qu'elles peuvent aussi favoriser les réponses immunitaires. Dans cette étude, nous montrons qu'à la suite d'un traitement antibiotique, les fourmis ont une réponse physiologique induisant la production de plus d'hydrocarbures cuticulaires et une cuticule plus mélanisée. Cela doit permettre une protection contre la perte d'eau et prévenir mieux contre l'intrusion de pathogènes et parasites. Néanmoins, le profil d'hydrocarbures cuticulaires n'est pas modifié par le traitement antibiotique, ce qui permet le maintien de la reconnaissance des congénères du nid.002A14B02C1Bactérie; Symbionte; Mutualisme; Antibiotique; Hydrocarbure; Cuticule; Mélanisation; Relation microorganisme animal; Formicidae; Camponotus fellah; BlochmanniaInsecte social; Formicoidea; Aculeata; Hymenoptera; Insecta; Arthropoda; InvertebrataBacteria; Symbiont; Mutualism; Antibiotic; Hydrocarbon; Cuticle; Melanization; Animal microorganism relation; FormicidaeSocial insect; Formicoidea; Aculeata; Hymenoptera; Insecta; Arthropoda; InvertebrataBacteria; Simbionte; Mutualismo; Antibiótico; Hidrocarburo; Cutícula; Melanización; Relación microorganismo animal; FormicidaeINIST-116D.35400019124032006012-0105638