000C00 Interaction between Tobacco and Alcohol Use and the Risk of Head and Neck Cancer : Pooled Analysis in the International Head and Neck Cancer Epidemiology ConsortiumMia HashibeIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Paul BrennanIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Shu-Chun ChuangIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Stefania BocciaInstitute of Hygiene, Università Cattolica del Sacro CuoreRomeITA4 aut.Xavier CastellsagueInstitut Català d'OncologiaBarcelonaESP5 aut.CHU CHENFred Hutchinson Cancer Research CenterSeattle, WashingtonUSA6 aut.31 aut.Maria Paula CuradoIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Hospital Araujo JorgeGoianiaBRA7 aut.Luigino Dal MasoAviano Cancer CentreAvianoITA8 aut.35 aut.Alexander W. DaudtHospital de Clinicas de Porto AlegrePorto AlegreBRA9 aut.Eleonora FabianovaSpecialized State Health InstituteBanská BystricaSVK10 aut.Leticia FernandezNational Institute of Oncology and RadiobiologyHavanaCUB11 aut.21 aut.Victor Filho WiinschUniversidade de Sao PauloSao PauloBRA12 aut.27 aut.Silvia FranceschiIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Richard B. HayesNational Cancer InstituteBethesda, MarylandUSA14 aut.29 aut.37 aut.Rolando HerreroInstituto de Investigación EpidemiológicaSan JoséCRI15 aut.Karl KelseyHarvard School of Public HealthUSA16 aut.Brown UniversityProvidence, Rhode IslandUSA16 aut.Sergio KoifmanEscola Nacional de Saude Publica, Fundaçao Oswaldo CruzRio de JaneiroBRA17 aut.Carlo La VecchiaIstituto di Ricerche Farmacologiche Mario Negri, and University of MilanMilanITA18 aut.Philip LazarusPenn State College of MedicineHershey, PennsylvaniaUSA19 aut.26 aut.Fabio LeviInstitut de médecine sociale et préventive, Université de LausanneLausanneCHE20 aut.Juan J. LenceNational Institute of Oncology and RadiobiologyHavanaCUB11 aut.21 aut.Dana MatesInstitute of Public HealthBucharestROU22 aut.Elena MatosInstitute of Oncology Angel H. Roffo, University of Buenos AiresBuenos AiresARG23 aut.Ana MenezesUniversidade Federal de PelotasPelotasBRA24 aut.Michael D. MccleanJoshua MuscatPenn State College of MedicineHershey, PennsylvaniaUSA19 aut.26 aut.Jose Eluf-NetoUniversidade de Sao PauloSao PauloBRA12 aut.27 aut.Andrew F. OlshanMark PurdueNational Cancer InstituteBethesda, MarylandUSA14 aut.29 aut.37 aut.Peter RudnaiStephen M. SchwartzFred Hutchinson Cancer Research CenterSeattle, WashingtonUSA6 aut.31 aut.Elaine SmithErich M. SturgisNeonilia Szeszenia-DabrowskaRenato TalaminiAviano Cancer CentreAvianoITA8 aut.35 aut.QINGYI WEIDeborah M. WinnNational Cancer InstituteBethesda, MarylandUSA14 aut.29 aut.37 aut.Oxana ShanginaAgnieszka PilarskaZuo-Feng ZhangGilles FerroIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Julien BerthillerIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Paolo BoffettaIARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.09-02119972009PASCAL 09-0211997 INISTPascal:09-0211997001D791055-9965Cancer epidemiol. biomark. prev.Cancer epidemiology, biomarkers & preventionAlcoholic beverageAlcoholismCancerologyConsumptionEpidemiologyHead and neck cancerInteractionInternationalPoolPublic healthRiskRisk factorTobacco smokingWorldTabagismeInteractionConsommationAlcoolismeBoisson alcooliséeFacteur risqueCancer de la tête et du couRisquePoolInternationalMondeEpidémiologieSanté publiqueCancérologie
Background: The magnitude of risk conferred by the interaction between tobacco and alcohol use on the risk of head and neck cancers is not clear because studies have used various methods to quantify the excess head and neck cancer burden. Methods: We analyzed individual-level pooled data from 17 European and American case-control studies (11,221 cases and 16,168 controls) participating in the International Head and Neck Cancer Epidemiology consortium. We estimated the multiplicative interaction parameter (ψ) and population attributable risks (PAR). Results: A greater than multiplicative joint effect between ever tobacco and alcohol use was observed for head and neck cancer risk (ψ = 2.15; 95% confidence interval, 1.53-3.04). The PAR for tobacco or alcohol was 72% (95% confidence interval, 61-79%) for head and neck cancer, of which 4% was due to alcohol alone, 33% was due to tobacco alone, and 35% was due to tobacco and alcohol combined. The total PAR differed by subsite (64% for oral cavity cancer, 72% for pharyngeal cancer, 89% for laryngeal cancer), by sex (74% for men, 57% for women), by age (33% for cases <45 years, 73% for cases >60 years), and by region (84% in Europe, 51% in North America, 83% in Latin America). Conclusions: Our results confirm that the joint effect between tobacco and alcohol use is greater than multiplicative on head and neck cancer risk. However, a substantial proportion of head and neck cancers cannot be attributed to tobacco or alcohol use, particularly for oral cavity cancer and for head and neck cancer among women and among young-onset cases.
1055-9965CEBPE4Cancer epidemiol. biomark. prev.182Interaction between Tobacco and Alcohol Use and the Risk of Head and Neck Cancer : Pooled Analysis in the International Head and Neck Cancer Epidemiology ConsortiumHASHIBE (Mia)BRENNAN (Paul)CHUANG (Shu-Chun)BOCCIA (Stefania)CASTELLSAGUE (Xavier)CHU CHENCURADO (Maria Paula)DAL MASO (Luigino)DAUDT (Alexander W.)FABIANOVA (Eleonora)FERNANDEZ (Leticia)WIINSCH (Victor FILHO)FRANCESCHI (Silvia)HAYES (Richard B.)HERRERO (Rolando)KELSEY (Karl)KOIFMAN (Sergio)LA VECCHIA (Carlo)LAZARUS (Philip)LEVI (Fabio)LENCE (Juan J.)MATES (Dana)MATOS (Elena)MENEZES (Ana)MCCLEAN (Michael D.)MUSCAT (Joshua)ELUF-NETO (Jose)OLSHAN (Andrew F.)PURDUE (Mark)RUDNAI (Peter)SCHWARTZ (Stephen M.)SMITH (Elaine)STURGIS (Erich M.)SZESZENIA-DABROWSKA (Neonilia)TALAMINI (Renato)QINGYI WEIWINN (Deborah M.)SHANGINA (Oxana)PILARSKA (Agnieszka)ZHANG (Zuo-Feng)FERRO (Gilles)BERTHILLER (Julien)BOFFETTA (Paolo)IARCLyonFRA1 aut.2 aut.3 aut.7 aut.13 aut.41 aut.42 aut.43 aut.Institute of Hygiene, Università Cattolica del Sacro CuoreRomeITA4 aut.Institut Català d'OncologiaBarcelonaESP5 aut.Fred Hutchinson Cancer Research CenterSeattle, WashingtonUSA6 aut.31 aut.Hospital Araujo JorgeGoianiaBRA7 aut.Aviano Cancer CentreAvianoITA8 aut.35 aut.Hospital de Clinicas de Porto AlegrePorto AlegreBRA9 aut.Specialized State Health InstituteBanská BystricaSVK10 aut.National Institute of Oncology and RadiobiologyHavanaCUB11 aut.21 aut.Universidade de Sao PauloSao PauloBRA12 aut.27 aut.National Cancer InstituteBethesda, MarylandUSA14 aut.29 aut.37 aut.Instituto de Investigación EpidemiológicaSan JoséCRI15 aut.Harvard School of Public HealthUSA16 aut.Brown UniversityProvidence, Rhode IslandUSA16 aut.Escola Nacional de Saude Publica, Fundaçao Oswaldo CruzRio de JaneiroBRA17 aut.Istituto di Ricerche Farmacologiche Mario Negri, and University of MilanMilanITA18 aut.Penn State College of MedicineHershey, PennsylvaniaUSA19 aut.26 aut.Institut de médecine sociale et préventive, Université de LausanneLausanneCHE20 aut.Institute of Public HealthBucharestROU22 aut.Institute of Oncology Angel H. Roffo, University of Buenos AiresBuenos AiresARG23 aut.Universidade Federal de PelotasPelotasBRA24 aut.541-5502009ENGINIST266373540001873949102200000© 2009 INIST-CNRS. All rights reserved.32 ref.09-0211997PACancer epidemiology, biomarkers & preventionUSABackground: The magnitude of risk conferred by the interaction between tobacco and alcohol use on the risk of head and neck cancers is not clear because studies have used various methods to quantify the excess head and neck cancer burden. Methods: We analyzed individual-level pooled data from 17 European and American case-control studies (11,221 cases and 16,168 controls) participating in the International Head and Neck Cancer Epidemiology consortium. We estimated the multiplicative interaction parameter (ψ) and population attributable risks (PAR). Results: A greater than multiplicative joint effect between ever tobacco and alcohol use was observed for head and neck cancer risk (ψ = 2.15; 95% confidence interval, 1.53-3.04). The PAR for tobacco or alcohol was 72% (95% confidence interval, 61-79%) for head and neck cancer, of which 4% was due to alcohol alone, 33% was due to tobacco alone, and 35% was due to tobacco and alcohol combined. The total PAR differed by subsite (64% for oral cavity cancer, 72% for pharyngeal cancer, 89% for laryngeal cancer), by sex (74% for men, 57% for women), by age (33% for cases <45 years, 73% for cases >60 years), and by region (84% in Europe, 51% in North America, 83% in Latin America). Conclusions: Our results confirm that the joint effect between tobacco and alcohol use is greater than multiplicative on head and neck cancer risk. However, a substantial proportion of head and neck cancers cannot be attributed to tobacco or alcohol use, particularly for oral cavity cancer and for head and neck cancer among women and among young-onset cases.002B04002B03ETabagisme01Tobacco smoking01Tabaquismo01Interaction02Interaction02Interacción02Consommation03Consumption03Consumo03Alcoolisme04Alcoholism04Alcoholismo04Boisson alcooliséeFX05Alcoholic beverageFX05Bebida alcohólicaFX05Facteur risque06Risk factor06Factor riesgo06Cancer de la tête et du couNM07Head and neck cancerNM07Cáncer de cabeza y cuelloNM07Risque08Risk08Riesgo08Pool09Pool09Pool09International11International11Internacional11MondeNG12WorldNG12MundoNG12Epidémiologie17Epidemiology17Epidemiología17Santé publique18Public health18Salud pública18Cancérologie19Cancerology19Cancerología19Pathologie ORL37ENT disease37ORL patología37Tumeur maligneNM38Malignant tumorNM38Tumor malignoNM38CancerNMCancerNMCáncerNM152OTOOTOPASCAL 09-0211997 INISTInteraction between Tobacco and Alcohol Use and the Risk of Head and Neck Cancer : Pooled Analysis in the International Head and Neck Cancer Epidemiology ConsortiumHASHIBE (Mia); BRENNAN (Paul); CHUANG (Shu-Chun); BOCCIA (Stefania); CASTELLSAGUE (Xavier); CHU CHEN; CURADO (Maria Paula); DAL MASO (Luigino); DAUDT (Alexander W.); FABIANOVA (Eleonora); FERNANDEZ (Leticia); WIINSCH (Victor FILHO); FRANCESCHI (Silvia); HAYES (Richard B.); HERRERO (Rolando); KELSEY (Karl); KOIFMAN (Sergio); LA VECCHIA (Carlo); LAZARUS (Philip); LEVI (Fabio); LENCE (Juan J.); MATES (Dana); MATOS (Elena); MENEZES (Ana); MCCLEAN (Michael D.); MUSCAT (Joshua); ELUF-NETO (Jose); OLSHAN (Andrew F.); PURDUE (Mark); RUDNAI (Peter); SCHWARTZ (Stephen M.); SMITH (Elaine); STURGIS (Erich M.); SZESZENIA-DABROWSKA (Neonilia); TALAMINI (Renato); QINGYI WEI; WINN (Deborah M.); SHANGINA (Oxana); PILARSKA (Agnieszka); ZHANG (Zuo-Feng); FERRO (Gilles); BERTHILLER (Julien); BOFFETTA (Paolo)IARC/Lyon/France (1 aut., 2 aut., 3 aut., 7 aut., 13 aut., 41 aut., 42 aut., 43 aut.); Institute of Hygiene, Università Cattolica del Sacro Cuore/Rome/Italie (4 aut.); Institut Català d'Oncologia/Barcelona/Espagne (5 aut.); Fred Hutchinson Cancer Research Center/Seattle, Washington/Etats-Unis (6 aut., 31 aut.); Hospital Araujo Jorge/Goiania/Brésil (7 aut.); Aviano Cancer Centre/Aviano/Italie (8 aut., 35 aut.); Hospital de Clinicas de Porto Alegre/Porto Alegre/Brésil (9 aut.); Specialized State Health Institute/Banská Bystrica/Slovaquie (10 aut.); National Institute of Oncology and Radiobiology/Havana/Cuba (11 aut., 21 aut.); Universidade de Sao Paulo/Sao Paulo/Brésil (12 aut., 27 aut.); National Cancer Institute/Bethesda, Maryland/Etats-Unis (14 aut., 29 aut., 37 aut.); Instituto de Investigación Epidemiológica/San José/Costa Rica (15 aut.); Harvard School of Public Health/Etats-Unis (16 aut.); Brown University/Providence, Rhode Island/Etats-Unis (16 aut.); Escola Nacional de Saude Publica, Fundaçao Oswaldo Cruz/Rio de Janeiro/Brésil (17 aut.); Istituto di Ricerche Farmacologiche Mario Negri, and University of Milan/Milan/Italie (18 aut.); Penn State College of Medicine/Hershey, Pennsylvania/Etats-Unis (19 aut., 26 aut.); Institut de médecine sociale et préventive, Université de Lausanne/Lausanne/Suisse (20 aut.); Institute of Public Health/Bucharest/Roumanie (22 aut.); Institute of Oncology Angel H. Roffo, University of Buenos Aires/Buenos Aires/Argentine (23 aut.); Universidade Federal de Pelotas/Pelotas/Brésil (24 aut.)
Publication en série; Niveau analytique
Cancer epidemiology, biomarkers & prevention; ISSN 1055-9965; Coden CEBPE4; Etats-Unis; Da. 2009; Vol. 18; No. 2; Pp. 541-550; Bibl. 32 ref.AnglaisBackground: The magnitude of risk conferred by the interaction between tobacco and alcohol use on the risk of head and neck cancers is not clear because studies have used various methods to quantify the excess head and neck cancer burden. Methods: We analyzed individual-level pooled data from 17 European and American case-control studies (11,221 cases and 16,168 controls) participating in the International Head and Neck Cancer Epidemiology consortium. We estimated the multiplicative interaction parameter (ψ) and population attributable risks (PAR). Results: A greater than multiplicative joint effect between ever tobacco and alcohol use was observed for head and neck cancer risk (ψ = 2.15; 95% confidence interval, 1.53-3.04). The PAR for tobacco or alcohol was 72% (95% confidence interval, 61-79%) for head and neck cancer, of which 4% was due to alcohol alone, 33% was due to tobacco alone, and 35% was due to tobacco and alcohol combined. The total PAR differed by subsite (64% for oral cavity cancer, 72% for pharyngeal cancer, 89% for laryngeal cancer), by sex (74% for men, 57% for women), by age (33% for cases <45 years, 73% for cases >60 years), and by region (84% in Europe, 51% in North America, 83% in Latin America). Conclusions: Our results confirm that the joint effect between tobacco and alcohol use is greater than multiplicative on head and neck cancer risk. However, a substantial proportion of head and neck cancers cannot be attributed to tobacco or alcohol use, particularly for oral cavity cancer and for head and neck cancer among women and among young-onset cases.002B04; 002B03ETabagisme; Interaction; Consommation; Alcoolisme; Boisson alcoolisée; Facteur risque; Cancer de la tête et du cou; Risque; Pool; International; Monde; Epidémiologie; Santé publique; CancérologiePathologie ORL; Tumeur maligne; CancerTobacco smoking; Interaction; Consumption; Alcoholism; Alcoholic beverage; Risk factor; Head and neck cancer; Risk; Pool; International; World; Epidemiology; Public health; CancerologyENT disease; Malignant tumor; CancerTabaquismo; Interacción; Consumo; Alcoholismo; Bebida alcohólica; Factor riesgo; Cáncer de cabeza y cuello; Riesgo; Pool; Internacional; Mundo; Epidemiología; Salud pública; CancerologíaINIST-26637.35400018739491022009-0211997
000C01 The isolated neutron star candidate 2XMM J104608.7-594306A. M. PiresInstituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 122605508-090 São PauloBRA1 aut.CNRS, Université de Strasbourg, Observatoire Astronomique, 11 rue de l'Université67000 StrasbourgFRA1 aut.2 aut.C. MotchCNRS, Université de Strasbourg, Observatoire Astronomique, 11 rue de l'Université67000 StrasbourgFRA1 aut.2 aut.R. TurollaUniversitá di Padova, Dipartimento di Fisica, via Marzolo 835131 PadovaITA3 aut.Mullard Space Science Laboratory, University College London, Holmbury St. MaryDorking, Surrey, RH5 6NTGBR3 aut.A. TrevesUniversitá dell'Insubria, Dipartimento di Fisica e Matematica, Via Valleggio 1122100 ComoITA4 aut.S. B. PopovSternberg Astronomical Institute, Universitetskii pr. 13119991 MoscowRUS5 aut.09-02129052009PASCAL 09-0212905 INISTPascal:09-0212905001D780004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AccretionAstronomical cataloguesInterstellar matterModelsNeutron starsOptical propertiesRadio emissionRadiopulsarUpper boundX ray emissionX ray observationX-ray spectraEtoile neutronObservation RXEmission radioélectriquePulsar radioCatalogue astronomiqueSpectre RXBorne supérieurePropriété optiqueEmission RXAccrétionMatière interstellaireModèle
Over the last decade, X-ray observations have revealed the existence of several classes of isolated neutron stars (INSs) which are radio-quiet or exhibit radio emission with properties much at variance with those of ordinary radio pulsars. The identification of new sources is crucial in order to understand the relations among the different classes and to compare observational constraints with theoretical expectations. A recent analysis of the 2XMMp catalogue provided fewer than 30 new thermally emitting INS candidates. Among these, the source 2XMM J104608.7-594306 appears particularly interesting because of the softness of its X-ray spectrum, kT = 117 ± 14eV and NH = (3.5 ± 1.1) x 1021 cm-2 (3σ), and of the present upper limits in the optical, mB ≥ 26, mV ≥ 25.5 and mR ≥ 25 (98.76% confidence level), which imply a logarithmic X-ray-to-optical flux ratio log(FX/FV) ≥ 3.1, corrected for absorption. We present the X-ray and optical properties of 2XMM J104608.7-594306 and discuss its nature in the light of two possible scenarios invoked to explain the X-ray thermal emission from INSs: the release of residual heat in a cooling neutron star, as in the seven radio-quiet ROSAT-discovered INSs, and accretion from the interstellar medium. We find that the present observational picture of 2XMM J104608.7-594306 is consistent with a distant cooling INS with properties in agreement with the most up-to-date expectations of population synthesis models: it is fainter, hotter and more absorbed than the seven ROSAT sources and possibly located in the Carina Nebula, a region likely to harbour unidentified cooling neutron stars. The accretion scenario, although not entirely ruled out by observations, would require a very slow (∼10 km s-1) INS accreting at the Bondi-Hoyle rate.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)4981The isolated neutron star candidate 2XMM J104608.7-594306PIRES (A. M.)MOTCH (C.)TUROLLA (R.)TREVES (A.)POPOV (S. B.)Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 122605508-090 São PauloBRA1 aut.CNRS, Université de Strasbourg, Observatoire Astronomique, 11 rue de l'Université67000 StrasbourgFRA1 aut.2 aut.Universitá di Padova, Dipartimento di Fisica, via Marzolo 835131 PadovaITA3 aut.Mullard Space Science Laboratory, University College London, Holmbury St. MaryDorking, Surrey, RH5 6NTGBR3 aut.Universitá dell'Insubria, Dipartimento di Fisica e Matematica, Via Valleggio 1122100 ComoITA4 aut.Sternberg Astronomical Institute, Universitetskii pr. 13119991 MoscowRUS5 aut.233-2402009ENGINIST141763540001860570002400000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0212905PAAstronomy and astrophysics : (Berlin. Print)FRAOver the last decade, X-ray observations have revealed the existence of several classes of isolated neutron stars (INSs) which are radio-quiet or exhibit radio emission with properties much at variance with those of ordinary radio pulsars. The identification of new sources is crucial in order to understand the relations among the different classes and to compare observational constraints with theoretical expectations. A recent analysis of the 2XMMp catalogue provided fewer than 30 new thermally emitting INS candidates. Among these, the source 2XMM J104608.7-594306 appears particularly interesting because of the softness of its X-ray spectrum, kT = 117 ± 14eV and NH = (3.5 ± 1.1) x 1021 cm-2 (3σ), and of the present upper limits in the optical, mB ≥ 26, mV ≥ 25.5 and mR ≥ 25 (98.76% confidence level), which imply a logarithmic X-ray-to-optical flux ratio log(FX/FV) ≥ 3.1, corrected for absorption. We present the X-ray and optical properties of 2XMM J104608.7-594306 and discuss its nature in the light of two possible scenarios invoked to explain the X-ray thermal emission from INSs: the release of residual heat in a cooling neutron star, as in the seven radio-quiet ROSAT-discovered INSs, and accretion from the interstellar medium. We find that the present observational picture of 2XMM J104608.7-594306 is consistent with a distant cooling INS with properties in agreement with the most up-to-date expectations of population synthesis models: it is fainter, hotter and more absorbed than the seven ROSAT sources and possibly located in the Carina Nebula, a region likely to harbour unidentified cooling neutron stars. The accretion scenario, although not entirely ruled out by observations, would require a very slow (∼10 km s-1) INS accreting at the Bondi-Hoyle rate.001E03Etoile neutron26Neutron stars26Observation RX27X ray observation27Observación RX27Emission radioélectrique28Radio emission28Emisión radioeléctrica28Pulsar radio29Radiopulsar29Pulsar radio29Catalogue astronomique30Astronomical catalogues30Spectre RX31X-ray spectra31Borne supérieure32Upper bound32Cota superior32Propriété optique33Optical properties33Emission RX34X ray emission34Emisión RX34Accrétion35Accretion35Matière interstellaire36Interstellar matter36Modèle37Models37Modelo37159OTOOTOPASCAL 09-0212905 INISTThe isolated neutron star candidate 2XMM J104608.7-594306PIRES (A. M.); MOTCH (C.); TUROLLA (R.); TREVES (A.); POPOV (S. B.)Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 1226/05508-090 São Paulo/Brésil (1 aut.); CNRS, Université de Strasbourg, Observatoire Astronomique, 11 rue de l'Université/67000 Strasbourg/France (1 aut., 2 aut.); Universitá di Padova, Dipartimento di Fisica, via Marzolo 8/35131 Padova/Italie (3 aut.); Mullard Space Science Laboratory, University College London, Holmbury St. Mary/Dorking, Surrey, RH5 6NT/Royaume-Uni (3 aut.); Universitá dell'Insubria, Dipartimento di Fisica e Matematica, Via Valleggio 11/22100 Como/Italie (4 aut.); Sternberg Astronomical Institute, Universitetskii pr. 13/119991 Moscow/Russie (5 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 498; No. 1; Pp. 233-240; Bibl. 3/4 p.AnglaisOver the last decade, X-ray observations have revealed the existence of several classes of isolated neutron stars (INSs) which are radio-quiet or exhibit radio emission with properties much at variance with those of ordinary radio pulsars. The identification of new sources is crucial in order to understand the relations among the different classes and to compare observational constraints with theoretical expectations. A recent analysis of the 2XMMp catalogue provided fewer than 30 new thermally emitting INS candidates. Among these, the source 2XMM J104608.7-594306 appears particularly interesting because of the softness of its X-ray spectrum, kT = 117 ± 14eV and NH = (3.5 ± 1.1) x 1021 cm-2 (3σ), and of the present upper limits in the optical, mB ≥ 26, mV ≥ 25.5 and mR ≥ 25 (98.76% confidence level), which imply a logarithmic X-ray-to-optical flux ratio log(FX/FV) ≥ 3.1, corrected for absorption. We present the X-ray and optical properties of 2XMM J104608.7-594306 and discuss its nature in the light of two possible scenarios invoked to explain the X-ray thermal emission from INSs: the release of residual heat in a cooling neutron star, as in the seven radio-quiet ROSAT-discovered INSs, and accretion from the interstellar medium. We find that the present observational picture of 2XMM J104608.7-594306 is consistent with a distant cooling INS with properties in agreement with the most up-to-date expectations of population synthesis models: it is fainter, hotter and more absorbed than the seven ROSAT sources and possibly located in the Carina Nebula, a region likely to harbour unidentified cooling neutron stars. The accretion scenario, although not entirely ruled out by observations, would require a very slow (∼10 km s-1) INS accreting at the Bondi-Hoyle rate.001E03Etoile neutron; Observation RX; Emission radioélectrique; Pulsar radio; Catalogue astronomique; Spectre RX; Borne supérieure; Propriété optique; Emission RX; Accrétion; Matière interstellaire; ModèleNeutron stars; X ray observation; Radio emission; Radiopulsar; Astronomical catalogues; X-ray spectra; Upper bound; Optical properties; X ray emission; Accretion; Interstellar matter; ModelsObservación RX; Emisión radioeléctrica; Pulsar radio; Cota superior; Emisión RX; ModeloINIST-14176.35400018605700024009-0212905
000C02 Electron-Hole Interaction in Carbon Nanotubes : Novel Screening and Exciton Excitation SpectraJack DeslippeDepartment of Physics, University of California at BerkeleyBerkeley, California 94720USA1 aut.2 aut.3 aut.6 aut.Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA1 aut.2 aut.6 aut.Mario DipoppaDepartment of Physics, University of California at BerkeleyBerkeley, California 94720USA1 aut.2 aut.3 aut.6 aut.Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA1 aut.2 aut.6 aut.Ecole Normale Supérieure de Lyon69364 LyonFRA2 aut.David PrendergastDepartment of Physics, University of California at BerkeleyBerkeley, California 94720USA1 aut.2 aut.3 aut.6 aut.Molecular Foundry, Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA3 aut.Marcus V. O. MoutinhoInstituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528Rio de Janeiro, RJ 21941-972BRA4 aut.5 aut.Rodrigo B. CapazInstituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528Rio de Janeiro, RJ 21941-972BRA4 aut.5 aut.Steven G. LouieDepartment of Physics, University of California at BerkeleyBerkeley, California 94720USA1 aut.2 aut.3 aut.6 aut.Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA1 aut.2 aut.6 aut.09-02136202009PASCAL 09-0213620 INISTPascal:09-0213620001D771530-6984Nano lett. : (Print)Nano letters : (Print)Ab initio calculationsBinding energyCarbonCarbon nanotubesElectron interactionEnergy levelsExcitonsNanostructured materialsSemiconductor materialsSinglewalled nanotubeInteraction électroniqueNanotube carboneNanomatériauExcitonCarboneEnergie liaisonNiveau énergieCalcul ab initioNanotube monofeuilletSemiconducteur8107D8107B7135
The optical response of single-walled carbon nanotubes is dominated by exciton states with unusually large binding energies. We show that screening in semiconducting tubes enhances rather than reduces the electron-hole interaction for separations larger than the tube diameter. This "antiscreening" region deepens the relative energy level of the higher exciton states yielding unconventional excitation spectra. The effect explains the discrepancy in the current experimentally extrapolated exciton binding energies (deduced using conventional model spectra) and those obtained from ab initio calculations on isolated tubes.
1530-6984Nano lett. : (Print)94Electron-Hole Interaction in Carbon Nanotubes : Novel Screening and Exciton Excitation SpectraDESLIPPE (Jack)DIPOPPA (Mario)PRENDERGAST (David)MOUTINHO (Marcus V. O.)CAPAZ (Rodrigo B.)LOUIE (Steven G.)Department of Physics, University of California at BerkeleyBerkeley, California 94720USA1 aut.2 aut.3 aut.6 aut.Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA1 aut.2 aut.6 aut.Ecole Normale Supérieure de Lyon69364 LyonFRA2 aut.Molecular Foundry, Materials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, California 94720USA3 aut.Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528Rio de Janeiro, RJ 21941-972BRA4 aut.5 aut.1330-13342009ENGINIST273693540001860316800900000© 2009 INIST-CNRS. All rights reserved.22 ref.09-0213620PCRANano letters : (Print)USAThe optical response of single-walled carbon nanotubes is dominated by exciton states with unusually large binding energies. We show that screening in semiconducting tubes enhances rather than reduces the electron-hole interaction for separations larger than the tube diameter. This "antiscreening" region deepens the relative energy level of the higher exciton states yielding unconventional excitation spectra. The effect explains the discrepancy in the current experimentally extrapolated exciton binding energies (deduced using conventional model spectra) and those obtained from ab initio calculations on isolated tubes.001B80A07D001B80A07B001B70A35Interaction électronique01Electron interaction01Interacción electrónica01Nanotube carbone02Carbon nanotubes02Nanomatériau03Nanostructured materials03Exciton04Excitons04CarboneNC05CarbonNC05Energie liaison06Binding energy06Niveau énergie07Energy levels07Calcul ab initio08Ab initio calculations08Nanotube monofeuillet15Singlewalled nanotube15Semiconducteur16Semiconductor materials168107DINC718107BINC727135INC73159OTOOTOPASCAL 09-0213620 INISTElectron-Hole Interaction in Carbon Nanotubes : Novel Screening and Exciton Excitation SpectraDESLIPPE (Jack); DIPOPPA (Mario); PRENDERGAST (David); MOUTINHO (Marcus V. O.); CAPAZ (Rodrigo B.); LOUIE (Steven G.)Department of Physics, University of California at Berkeley/Berkeley, California 94720/Etats-Unis (1 aut., 2 aut., 3 aut., 6 aut.); Materials Sciences Division, Lawrence Berkeley National Laboratory/Berkeley, California 94720/Etats-Unis (1 aut., 2 aut., 6 aut.); Ecole Normale Supérieure de Lyon/69364 Lyon/France (2 aut.); Molecular Foundry, Materials Sciences Division, Lawrence Berkeley National Laboratory/Berkeley, California 94720/Etats-Unis (3 aut.); Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528/Rio de Janeiro, RJ 21941-972/Brésil (4 aut., 5 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Nano letters : (Print); ISSN 1530-6984; Etats-Unis; Da. 2009; Vol. 9; No. 4; Pp. 1330-1334; Bibl. 22 ref.AnglaisThe optical response of single-walled carbon nanotubes is dominated by exciton states with unusually large binding energies. We show that screening in semiconducting tubes enhances rather than reduces the electron-hole interaction for separations larger than the tube diameter. This "antiscreening" region deepens the relative energy level of the higher exciton states yielding unconventional excitation spectra. The effect explains the discrepancy in the current experimentally extrapolated exciton binding energies (deduced using conventional model spectra) and those obtained from ab initio calculations on isolated tubes.001B80A07D; 001B80A07B; 001B70A35Interaction électronique; Nanotube carbone; Nanomatériau; Exciton; Carbone; Energie liaison; Niveau énergie; Calcul ab initio; Nanotube monofeuillet; Semiconducteur; 8107D; 8107B; 7135Electron interaction; Carbon nanotubes; Nanostructured materials; Excitons; Carbon; Binding energy; Energy levels; Ab initio calculations; Singlewalled nanotube; Semiconductor materialsInteracción electrónicaINIST-27369.35400018603168009009-0213620
000C03 Poly-ε-Caprolactone Intravitreous Devices : An In Vivo StudyArmando Silva-CunhaFaculty of Pharmacy of the Federal University of Minas GeraisBelo HorizonteBRA1 aut.Physiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872ParisFRA1 aut.2 aut.3 aut.4 aut.Silvia Ligorio FialhoPhysiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872ParisFRA1 aut.2 aut.3 aut.4 aut.Pharmaceutical and Biotechnological Development, Fundação Ezequiel DiasBelo HorizonteBRA2 aut.Marie-Christine NaudPhysiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872ParisFRA1 aut.2 aut.3 aut.4 aut.Francine Bebar-CobenPhysiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872ParisFRA1 aut.2 aut.3 aut.4 aut.Department of Ophthalmology, Hôtel-Dieu of Paris University Hospital, René Descartes UniversityParisFRA4 aut.Laboratoire d'lnnovations Thérapeutiques, Rothschild Ophthalmologic FoundationParisFRA4 aut.09-02150332009PASCAL 09-0215033 INISTPascal:09-0215033001D760146-0404Invest. ophthalmol. vis. sci.Investigative ophthalmology & visual scienceDeviceIn vivoOphthalmologyVitreous bodyCorps vitréDispositifIn vivoOphtalmologie
PURPOSE. The objective of this study was to evaluate the long-term safety and pharmacokinetic profile of a dexamethasone-loaded poly-e-caprolactone (PCL) intravitreous implant. METHODS. The PCL devices were prepared by compression and were inserted into the vitreous of pigmented rabbits. At different time points, vitreous samples were retrieved, and dexamethasone concentration was analyzed by high-performance liquid chromatography. The biodegradation of the implants was evaluated by scanning electron microscopy, and the dexamethasone remaining was evaluated at the end of follow-up. Clinical and histologic examinations were performed to evaluate the implant's tolerance. RESULTS. The PCL implant allows for a controlled and prolonged delivery of dexamethasone in rabbits eyes since it released the drug within the therapeutic range for at least 55 weeks. At 55 weeks approximately 79% of the drug was still present in the implant. Biodegradation study showed that PCL implants degradation is very slow. Clinical and histologic observations showed that the devices were very well tolerated in the rabbit eye. CONCLUSIONS. This study demonstrates the feasibility and tolerance of intravitreous PCL drug delivery systems, which can offer a wide range of applications for intraocular drug delivery because of their controlled and prolonged release over months or even years.
0146-0404IOVSDAInvest. ophthalmol. vis. sci.505Poly-ε-Caprolactone Intravitreous Devices : An In Vivo StudySILVA-CUNHA (Armando)LIGORIO FIALHO (Silvia)NAUD (Marie-Christine)BEBAR-COBEN (Francine)Faculty of Pharmacy of the Federal University of Minas GeraisBelo HorizonteBRA1 aut.Physiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872ParisFRA1 aut.2 aut.3 aut.4 aut.Pharmaceutical and Biotechnological Development, Fundação Ezequiel DiasBelo HorizonteBRA2 aut.Department of Ophthalmology, Hôtel-Dieu of Paris University Hospital, René Descartes UniversityParisFRA4 aut.Laboratoire d'lnnovations Thérapeutiques, Rothschild Ophthalmologic FoundationParisFRA4 aut.2312-23182009ENGINIST120953540001849637304600000© 2009 INIST-CNRS. All rights reserved.39 ref.09-0215033PAInvestigative ophthalmology & visual scienceUSAPURPOSE. The objective of this study was to evaluate the long-term safety and pharmacokinetic profile of a dexamethasone-loaded poly-e-caprolactone (PCL) intravitreous implant. METHODS. The PCL devices were prepared by compression and were inserted into the vitreous of pigmented rabbits. At different time points, vitreous samples were retrieved, and dexamethasone concentration was analyzed by high-performance liquid chromatography. The biodegradation of the implants was evaluated by scanning electron microscopy, and the dexamethasone remaining was evaluated at the end of follow-up. Clinical and histologic examinations were performed to evaluate the implant's tolerance. RESULTS. The PCL implant allows for a controlled and prolonged delivery of dexamethasone in rabbits eyes since it released the drug within the therapeutic range for at least 55 weeks. At 55 weeks approximately 79% of the drug was still present in the implant. Biodegradation study showed that PCL implants degradation is very slow. Clinical and histologic observations showed that the devices were very well tolerated in the rabbit eye. CONCLUSIONS. This study demonstrates the feasibility and tolerance of intravitreous PCL drug delivery systems, which can offer a wide range of applications for intraocular drug delivery because of their controlled and prolonged release over months or even years.002B09002A25ICorps vitré02Vitreous body02Cuerpo vítreo02Dispositif03Device03Dispositivo03In vivo05In vivo05In vivo05Ophtalmologie06Ophthalmology06Oftalmología06159OTOOTOPASCAL 09-0215033 INISTPoly-ε-Caprolactone Intravitreous Devices : An In Vivo StudySILVA-CUNHA (Armando); LIGORIO FIALHO (Silvia); NAUD (Marie-Christine); BEBAR-COBEN (Francine)Faculty of Pharmacy of the Federal University of Minas Gerais/Belo Horizonte/Brésil (1 aut.); Physiopathology of Ocular Diseases, Therapeutic Innovations, Centre de Recherche des Cordeliers, René Descartes University, INSERM (Unite of Scientific Medical Research, Institut National de la Santé et de la Recherche Médicale) Research Unit (UMRS) 872/Paris/France (1 aut., 2 aut., 3 aut., 4 aut.); Pharmaceutical and Biotechnological Development, Fundação Ezequiel Dias/Belo Horizonte/Brésil (2 aut.); Department of Ophthalmology, Hôtel-Dieu of Paris University Hospital, René Descartes University/Paris/France (4 aut.); Laboratoire d'lnnovations Thérapeutiques, Rothschild Ophthalmologic Foundation/Paris/France (4 aut.)
Publication en série; Niveau analytique
Investigative ophthalmology & visual science; ISSN 0146-0404; Coden IOVSDA; Etats-Unis; Da. 2009; Vol. 50; No. 5; Pp. 2312-2318; Bibl. 39 ref.AnglaisPURPOSE. The objective of this study was to evaluate the long-term safety and pharmacokinetic profile of a dexamethasone-loaded poly-e-caprolactone (PCL) intravitreous implant. METHODS. The PCL devices were prepared by compression and were inserted into the vitreous of pigmented rabbits. At different time points, vitreous samples were retrieved, and dexamethasone concentration was analyzed by high-performance liquid chromatography. The biodegradation of the implants was evaluated by scanning electron microscopy, and the dexamethasone remaining was evaluated at the end of follow-up. Clinical and histologic examinations were performed to evaluate the implant's tolerance. RESULTS. The PCL implant allows for a controlled and prolonged delivery of dexamethasone in rabbits eyes since it released the drug within the therapeutic range for at least 55 weeks. At 55 weeks approximately 79% of the drug was still present in the implant. Biodegradation study showed that PCL implants degradation is very slow. Clinical and histologic observations showed that the devices were very well tolerated in the rabbit eye. CONCLUSIONS. This study demonstrates the feasibility and tolerance of intravitreous PCL drug delivery systems, which can offer a wide range of applications for intraocular drug delivery because of their controlled and prolonged release over months or even years.002B09; 002A25ICorps vitré; Dispositif; In vivo; OphtalmologieVitreous body; Device; In vivo; OphthalmologyCuerpo vítreo; Dispositivo; In vivo; OftalmologíaINIST-12095.35400018496373046009-0215033
000C04 Thermoluminescent and optical absorption properties of neodymium doped yttrium aluminoborate and yttrium calcium borate glassesE. M. YoshimuraDepartamento de Física Nuclear, Instituto de Física, Universidade de São Paulo, PO. Box 6631805315-970 São Paulo, SPBRA1 aut.C. N. SantosGrupo Crescimento de Cristais e Materiais Cerâmicos, Instituto de Física de São Carlos -Universidade de São Paulo. Caixa Postal 36913560-970 São Carlos, SPBRA2 aut.4 aut.Institut Néel, CNRS and Université Joseph Fourier, BP16638042 GrenobleFRA2 aut.3 aut.A. IbanezInstitut Néel, CNRS and Université Joseph Fourier, BP16638042 GrenobleFRA2 aut.3 aut.A. C. HernandesGrupo Crescimento de Cristais e Materiais Cerâmicos, Instituto de Física de São Carlos -Universidade de São Paulo. Caixa Postal 36913560-970 São Carlos, SPBRA2 aut.4 aut.09-02155422009PASCAL 09-0215542 INISTPascal:09-0215542001D750925-3467Opt. mater. : (Amst.)Optical materials : (Amsterdam)Beta irradiationBorate glassesCalcium BoratesDoped materialsDosimetryNeodymium additionsOptical materialsOptical propertiesThermoluminescenceYttrium BoratesThermoluminescenceDosimétrieIrradiation bêtaPropriété optiqueMatériau dopéAddition néodymeVerre borateMatériau optiqueYttrium BorateCalcium Borate4270C78207860K
Neodymium doped yttrium aluminoborate and yttrium calcium borate glasses were prepared by the conventional melting-quenching technique with neodymium concentration varying from 0.10 to 1.0 mol%. The obtained glasses present a wide transparency in the UV-visible region (till 240 nm). The thermoluminescent (TL) emission of beta-irradiated samples was measured, showing a broad peak at ∼240 °C with intensities related to the Nd3+ content, for both glasses. Calcium borate glass samples are about one order of magnitude less luminescent than the aluminoborate glasses. Probably the presence of Ca2+, instead of A13+ and Y3+in the matrix, inhibits the production of the intrinsic hole centers, connected to boron and oxygen, known in the literature to act as luminescent centers in TL emission of borate glasses. We suggest that Nd3+ ions act as electron trapping centers in both glass matrices, as they modify the temperature of emission and the light intensity. Also, the Nd:YAIB glass can be used as a dosimeter in various applications, including radiotherapy, but the sensitivity of this material to neutron should be checked.
0925-3467Opt. mater. : (Amst.)316Thermoluminescent and optical absorption properties of neodymium doped yttrium aluminoborate and yttrium calcium borate glassesYOSHIMURA (E. M.)SANTOS (C. N.)IBANEZ (A.)HERNANDES (A. C.)Departamento de Física Nuclear, Instituto de Física, Universidade de São Paulo, PO. Box 6631805315-970 São Paulo, SPBRA1 aut.Grupo Crescimento de Cristais e Materiais Cerâmicos, Instituto de Física de São Carlos -Universidade de São Paulo. Caixa Postal 36913560-970 São Carlos, SPBRA2 aut.4 aut.Institut Néel, CNRS and Université Joseph Fourier, BP16638042 GrenobleFRA2 aut.3 aut.795-7992009ENGINIST225983540001849325500600000© 2009 INIST-CNRS. All rights reserved.27ref.09-0215542PAOptical materials : (Amsterdam)NLDNeodymium doped yttrium aluminoborate and yttrium calcium borate glasses were prepared by the conventional melting-quenching technique with neodymium concentration varying from 0.10 to 1.0 mol%. The obtained glasses present a wide transparency in the UV-visible region (till 240 nm). The thermoluminescent (TL) emission of beta-irradiated samples was measured, showing a broad peak at ∼240 °C with intensities related to the Nd3+ content, for both glasses. Calcium borate glass samples are about one order of magnitude less luminescent than the aluminoborate glasses. Probably the presence of Ca2+, instead of A13+ and Y3+in the matrix, inhibits the production of the intrinsic hole centers, connected to boron and oxygen, known in the literature to act as luminescent centers in TL emission of borate glasses. We suggest that Nd3+ ions act as electron trapping centers in both glass matrices, as they modify the temperature of emission and the light intensity. Also, the Nd:YAIB glass can be used as a dosimeter in various applications, including radiotherapy, but the sensitivity of this material to neutron should be checked.001B70H60K001B40B70C001B70H20Thermoluminescence03Thermoluminescence03Dosimétrie30Dosimetry30Irradiation bêta31Beta irradiation31Irradiación beta31Propriété optique41Optical properties41Matériau dopé50Doped materials50Addition néodyme57Neodymium additions57Verre borate63Borate glasses63Matériau optique64Optical materials64Yttrium BorateNCNA65Yttrium BoratesNCNA65Calcium BorateNCNA66Calcium BoratesNCNA664270CINC837820INC847860KINC91159PASCAL 09-0215542 INISTThermoluminescent and optical absorption properties of neodymium doped yttrium aluminoborate and yttrium calcium borate glassesYOSHIMURA (E. M.); SANTOS (C. N.); IBANEZ (A.); HERNANDES (A. C.)Departamento de Física Nuclear, Instituto de Física, Universidade de São Paulo, PO. Box 66318/05315-970 São Paulo, SP/Brésil (1 aut.); Grupo Crescimento de Cristais e Materiais Cerâmicos, Instituto de Física de São Carlos -Universidade de São Paulo. Caixa Postal 369/13560-970 São Carlos, SP/Brésil (2 aut., 4 aut.); Institut Néel, CNRS and Université Joseph Fourier, BP166/38042 Grenoble/France (2 aut., 3 aut.)
Publication en série; Niveau analytique
Optical materials : (Amsterdam); ISSN 0925-3467; Pays-Bas; Da. 2009; Vol. 31; No. 6; Pp. 795-799; Bibl. 27ref.AnglaisNeodymium doped yttrium aluminoborate and yttrium calcium borate glasses were prepared by the conventional melting-quenching technique with neodymium concentration varying from 0.10 to 1.0 mol%. The obtained glasses present a wide transparency in the UV-visible region (till 240 nm). The thermoluminescent (TL) emission of beta-irradiated samples was measured, showing a broad peak at ∼240 °C with intensities related to the Nd3+ content, for both glasses. Calcium borate glass samples are about one order of magnitude less luminescent than the aluminoborate glasses. Probably the presence of Ca2+, instead of A13+ and Y3+in the matrix, inhibits the production of the intrinsic hole centers, connected to boron and oxygen, known in the literature to act as luminescent centers in TL emission of borate glasses. We suggest that Nd3+ ions act as electron trapping centers in both glass matrices, as they modify the temperature of emission and the light intensity. Also, the Nd:YAIB glass can be used as a dosimeter in various applications, including radiotherapy, but the sensitivity of this material to neutron should be checked.001B70H60K; 001B40B70C; 001B70H20Thermoluminescence; Dosimétrie; Irradiation bêta; Propriété optique; Matériau dopé; Addition néodyme; Verre borate; Matériau optique; Yttrium Borate; Calcium Borate; 4270C; 7820; 7860KThermoluminescence; Dosimetry; Beta irradiation; Optical properties; Doped materials; Neodymium additions; Borate glasses; Optical materials; Yttrium Borates; Calcium BoratesIrradiación betaINIST-22598.35400018493255006009-0215542
000C05 2006 WHOLE EARTH TELESCOPE OBSERVATIONS OF GD358 : A NEW LOOK AT THE PROTOTYPE DBVJ. L. ProvencalUniversity of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.Delaware Asteroseismic Research Center, Mt. Cuba ObservatoryGreenville, DE 19807USA1 aut.2 aut.13 aut.55 aut.M. H. MontgomeryDelaware Asteroseismic Research Center, Mt. Cuba ObservatoryGreenville, DE 19807USA1 aut.2 aut.13 aut.55 aut.Department of Astronomy, University of TexasAustin, TX-78712USA2 aut.12 aut.A. KanaanDepartamento de Ffsica Universidade Federal de Santa Catarina, C.P. 47688040-900, Florianópolis, SCBRA3 aut.54 aut.H. L. ShipmanUniversity of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.D. ChildersDepartment of Math and Science, Delaware County Community College, 901 S. Media RdMedia, PA-19063USA5 aut.A. BaranMount Suhora Observatory, Cracow Pedagogical University, Ul. Podchorazych 230-084 KrakowPOL6 aut.35 aut.S. O. KeplerInstituto de Fíisica UFRGS, C.P. 1050191501-970 Porto Alegre, RSBRA7 aut.M. ReedMissouri State University and Baker Observatory, 901S. NationalSpringfield, MO 65897USA8 aut.9 aut.10 aut.A. ZhouMissouri State University and Baker Observatory, 901S. NationalSpringfield, MO 65897USA8 aut.9 aut.10 aut.J. EggenMissouri State University and Baker Observatory, 901S. NationalSpringfield, MO 65897USA8 aut.9 aut.10 aut.T. K. WatsonSouthwestern UniversityGeorgetown, TXUSA11 aut.D. E. WingetDepartment of Astronomy, University of TexasAustin, TX-78712USA2 aut.12 aut.S. E. ThompsonUniversity of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.Delaware Asteroseismic Research Center, Mt. Cuba ObservatoryGreenville, DE 19807USA1 aut.2 aut.13 aut.55 aut.B. RiazUniversity of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.A. NittaGemini Observatory, Northern Operations Center, 670 North A'ohoku PlaceHilo, HI 96720USA15 aut.16 aut.S. J. KleinmanGemini Observatory, Northern Operations Center, 670 North A'ohoku PlaceHilo, HI 96720USA15 aut.16 aut.R. CroweUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.J. SlivkoffUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.P. SherardUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.N. PurvesUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.P. BinderUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.R. KnightUniversity of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.S.-L. KimKorea Astronomy and Space Science InstituteDaejeon 305-348KOR23 aut.Wen-Ping ChenLulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.M. YangLulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.H. C. LinLulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.C. C. LinLulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.C. W. ChenLulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.X. J. JiangNational Astronomical Observatories, Academy of SciencesBeijing 100012CHN29 aut.A. V. SergefvUkrainian National Academy of Sciences, Main Astronomical ObservatoryGolosiiv, Kiev 022 252650UKR30 aut.32 aut.D. MkrtichianAstronomical Observatory, Odessa National University, Shevchenko ParkOdessa 65014UKR31 aut.37 aut.Astrophysical Research Center for the Structure and Evolution of the Cosmos, Sejong UniversitySeoul 143-747KOR31 aut.M. AndreevUkrainian National Academy of Sciences, Main Astronomical ObservatoryGolosiiv, Kiev 022 252650UKR30 aut.32 aut.R. JanulisInstitute of Theoretical Physics and Astronomy, Vilnius UniversityVilniusLTU33 aut.M. SiwakAstronomical Observatory, Jagiellonian University, ul. Orla 17130-244 CracowPOL34 aut.35 aut.36 aut.S. ZolaMount Suhora Observatory, Cracow Pedagogical University, Ul. Podchorazych 230-084 KrakowPOL6 aut.35 aut.Astronomical Observatory, Jagiellonian University, ul. Orla 17130-244 CracowPOL34 aut.35 aut.36 aut.D. KozielAstronomical Observatory, Jagiellonian University, ul. Orla 17130-244 CracowPOL34 aut.35 aut.36 aut.G. StachowskAstronomical Observatory, Odessa National University, Shevchenko ParkOdessa 65014UKR31 aut.37 aut.M. PaparoKonkoly Observatory, P.O. Box 671525 Budapest XIIHUN38 aut.39 aut.Zs. BognarKonkoly Observatory, P.O. Box 671525 Budapest XIIHUN38 aut.39 aut.G. HandlerInstitut für Astronomie Universität Wien, Türkenschanzstrasse 171180AUT40 aut.41 aut.42 aut.43 aut.D. LorenzInstitut für Astronomie Universität Wien, Türkenschanzstrasse 171180AUT40 aut.41 aut.42 aut.43 aut.B. SteiningerInstitut für Astronomie Universität Wien, Türkenschanzstrasse 171180AUT40 aut.41 aut.42 aut.43 aut.P. BeckInstitut für Astronomie Universität Wien, Türkenschanzstrasse 171180AUT40 aut.41 aut.42 aut.43 aut.T. NagelInstitut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.D. KustererInstitut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.A. HoffmanInstitut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.E. ReiffInstitut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.R. KowalskiInstitut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.G. VauclairLaboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin314000 ToulouseFRA49 aut.50 aut.S. CharpinetLaboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin314000 ToulouseFRA49 aut.50 aut.M. ChevretonObservatoire de Paris, LESIA92195 MeudonFRA51 aut.J. E. SolheimInstitute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029OsloNOR52 aut.E. PakstieneL. FragaDepartamento de Ffsica Universidade Federal de Santa Catarina, C.P. 47688040-900, Florianópolis, SCBRA3 aut.54 aut.J. DalessioUniversity of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.Delaware Asteroseismic Research Center, Mt. Cuba ObservatoryGreenville, DE 19807USA1 aut.2 aut.13 aut.55 aut.09-02159762009PASCAL 09-0215976 INISTPascal:09-0215976001D740004-637XAstrophys. j.The Astrophysical journalStellar evolutionWhite dwarf starsEvolution stellaireNaine blanche0004-637XASJOABAstrophys. j.6931p. 12006 WHOLE EARTH TELESCOPE OBSERVATIONS OF GD358 : A NEW LOOK AT THE PROTOTYPE DBVPROVENCAL (J. L.)MONTGOMERY (M. H.)KANAAN (A.)SHIPMAN (H. L.)CHILDERS (D.)BARAN (A.)KEPLER (S. O.)REED (M.)ZHOU (A.)EGGEN (J.)WATSON (T. K.)WINGET (D. E.)THOMPSON (S. E.)RIAZ (B.)NITTA (A.)KLEINMAN (S. J.)CROWE (R.)SLIVKOFF (J.)SHERARD (P.)PURVES (N.)BINDER (P.)KNIGHT (R.)KIM (S.-L.)CHEN (Wen-Ping)YANG (M.)LIN (H. C.)LIN (C. C.)CHEN (C. W.)JIANG (X. J.)SERGEFV (A. V.)MKRTICHIAN (D.)ANDREEV (M.)JANULIS (R.)SIWAK (M.)ZOLA (S.)KOZIEL (D.)STACHOWSK (G.)PAPARO (M.)BOGNAR (Zs.)HANDLER (G.)LORENZ (D.)STEININGER (B.)BECK (P.)NAGEL (T.)KUSTERER (D.)HOFFMAN (A.)REIFF (E.)KOWALSKI (R.)VAUCLAIR (G.)CHARPINET (S.)CHEVRETON (M.)SOLHEIM (J. E.)PAKSTIENE (E.)FRAGA (L.)DALESSIO (J.)University of Delaware, Department of Physics and AstronomyNewark, DE 19716USA1 aut.4 aut.13 aut.14 aut.55 aut.Delaware Asteroseismic Research Center, Mt. Cuba ObservatoryGreenville, DE 19807USA1 aut.2 aut.13 aut.55 aut.Department of Astronomy, University of TexasAustin, TX-78712USA2 aut.12 aut.Departamento de Ffsica Universidade Federal de Santa Catarina, C.P. 47688040-900, Florianópolis, SCBRA3 aut.54 aut.Department of Math and Science, Delaware County Community College, 901 S. Media RdMedia, PA-19063USA5 aut.Mount Suhora Observatory, Cracow Pedagogical University, Ul. Podchorazych 230-084 KrakowPOL6 aut.35 aut.Instituto de Fíisica UFRGS, C.P. 1050191501-970 Porto Alegre, RSBRA7 aut.Missouri State University and Baker Observatory, 901S. NationalSpringfield, MO 65897USA8 aut.9 aut.10 aut.Southwestern UniversityGeorgetown, TXUSA11 aut.Gemini Observatory, Northern Operations Center, 670 North A'ohoku PlaceHilo, HI 96720USA15 aut.16 aut.University of HawaiiHilo, HI 96720USA17 aut.18 aut.19 aut.20 aut.21 aut.22 aut.Korea Astronomy and Space Science InstituteDaejeon 305-348KOR23 aut.Lulin Observatory, National Central UniversityTWN24 aut.25 aut.26 aut.27 aut.28 aut.National Astronomical Observatories, Academy of SciencesBeijing 100012CHN29 aut.Ukrainian National Academy of Sciences, Main Astronomical ObservatoryGolosiiv, Kiev 022 252650UKR30 aut.32 aut.Astronomical Observatory, Odessa National University, Shevchenko ParkOdessa 65014UKR31 aut.37 aut.Astrophysical Research Center for the Structure and Evolution of the Cosmos, Sejong UniversitySeoul 143-747KOR31 aut.Institute of Theoretical Physics and Astronomy, Vilnius UniversityVilniusLTU33 aut.Astronomical Observatory, Jagiellonian University, ul. Orla 17130-244 CracowPOL34 aut.35 aut.36 aut.Konkoly Observatory, P.O. Box 671525 Budapest XIIHUN38 aut.39 aut.Institut für Astronomie Universität Wien, Türkenschanzstrasse 171180AUT40 aut.41 aut.42 aut.43 aut.Institut für Astronomie und Astrophysik, Universiät Tübingen, Sand 172076 TübingenDEU44 aut.45 aut.46 aut.47 aut.48 aut.Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin314000 ToulouseFRA49 aut.50 aut.Observatoire de Paris, LESIA92195 MeudonFRA51 aut.Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029OsloNOR52 aut.564-5852009ENGINIST5123540001849887404700000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0215976PAThe Astrophysical journalUSA001E03Evolution stellaire26Stellar evolution26Naine blanche27White dwarf stars27159OTOOTOPASCAL 09-0215976 INIST2006 WHOLE EARTH TELESCOPE OBSERVATIONS OF GD358 : A NEW LOOK AT THE PROTOTYPE DBVPROVENCAL (J. L.); MONTGOMERY (M. H.); KANAAN (A.); SHIPMAN (H. L.); CHILDERS (D.); BARAN (A.); KEPLER (S. O.); REED (M.); ZHOU (A.); EGGEN (J.); WATSON (T. K.); WINGET (D. E.); THOMPSON (S. E.); RIAZ (B.); NITTA (A.); KLEINMAN (S. J.); CROWE (R.); SLIVKOFF (J.); SHERARD (P.); PURVES (N.); BINDER (P.); KNIGHT (R.); KIM (S.-L.); CHEN (Wen-Ping); YANG (M.); LIN (H. C.); LIN (C. C.); CHEN (C. W.); JIANG (X. J.); SERGEFV (A. V.); MKRTICHIAN (D.); ANDREEV (M.); JANULIS (R.); SIWAK (M.); ZOLA (S.); KOZIEL (D.); STACHOWSK (G.); PAPARO (M.); BOGNAR (Zs.); HANDLER (G.); LORENZ (D.); STEININGER (B.); BECK (P.); NAGEL (T.); KUSTERER (D.); HOFFMAN (A.); REIFF (E.); KOWALSKI (R.); VAUCLAIR (G.); CHARPINET (S.); CHEVRETON (M.); SOLHEIM (J. E.); PAKSTIENE (E.); FRAGA (L.); DALESSIO (J.)University of Delaware, Department of Physics and Astronomy/Newark, DE 19716/Etats-Unis (1 aut., 4 aut., 13 aut., 14 aut., 55 aut.); Delaware Asteroseismic Research Center, Mt. Cuba Observatory/Greenville, DE 19807/Etats-Unis (1 aut., 2 aut., 13 aut., 55 aut.); Department of Astronomy, University of Texas/Austin, TX-78712/Etats-Unis (2 aut., 12 aut.); Departamento de Ffsica Universidade Federal de Santa Catarina, C.P. 476/88040-900, Florianópolis, SC/Brésil (3 aut., 54 aut.); Department of Math and Science, Delaware County Community College, 901 S. Media Rd/Media, PA-19063/Etats-Unis (5 aut.); Mount Suhora Observatory, Cracow Pedagogical University, Ul. Podchorazych 2/30-084 Krakow/Pologne (6 aut., 35 aut.); Instituto de Fíisica UFRGS, C.P. 10501/91501-970 Porto Alegre, RS/Brésil (7 aut.); Missouri State University and Baker Observatory, 901S. National/Springfield, MO 65897/Etats-Unis (8 aut., 9 aut., 10 aut.); Southwestern University/Georgetown, TX/Etats-Unis (11 aut.); Gemini Observatory, Northern Operations Center, 670 North A'ohoku Place/Hilo, HI 96720/Etats-Unis (15 aut., 16 aut.); University of Hawaii/Hilo, HI 96720/Etats-Unis (17 aut., 18 aut., 19 aut., 20 aut., 21 aut., 22 aut.); Korea Astronomy and Space Science Institute/Daejeon 305-348/Corée, République de (23 aut.); Lulin Observatory, National Central University/Taïwan (24 aut., 25 aut., 26 aut., 27 aut., 28 aut.); National Astronomical Observatories, Academy of Sciences/Beijing 100012/Chine (29 aut.); Ukrainian National Academy of Sciences, Main Astronomical Observatory/Golosiiv, Kiev 022 252650/Ukraine (30 aut., 32 aut.); Astronomical Observatory, Odessa National University, Shevchenko Park/Odessa 65014/Ukraine (31 aut., 37 aut.); Astrophysical Research Center for the Structure and Evolution of the Cosmos, Sejong University/Seoul 143-747/Corée, République de (31 aut.); Institute of Theoretical Physics and Astronomy, Vilnius University/Vilnius/Lithuanie (33 aut.); Astronomical Observatory, Jagiellonian University, ul. Orla 171/30-244 Cracow/Pologne (34 aut., 35 aut., 36 aut.); Konkoly Observatory, P.O. Box 67/1525 Budapest XII/Hongrie (38 aut., 39 aut.); Institut für Astronomie Universität Wien, Türkenschanzstrasse 17/1180/Autriche (40 aut., 41 aut., 42 aut., 43 aut.); Institut für Astronomie und Astrophysik, Universiät Tübingen, Sand 1/72076 Tübingen/Allemagne (44 aut., 45 aut., 46 aut., 47 aut., 48 aut.); Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin/314000 Toulouse/France (49 aut., 50 aut.); Observatoire de Paris, LESIA/92195 Meudon/France (51 aut.); Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029/Oslo/Norvège (52 aut.)
Publication en série; Niveau analytique
The Astrophysical journal; ISSN 0004-637X; Coden ASJOAB; Etats-Unis; Da. 2009; Vol. 693; No. 1 p. 1; Pp. 564-585; Bibl. 1/2 p.Anglais001E03Evolution stellaire; Naine blancheStellar evolution; White dwarf starsINIST-512.35400018498874047009-0215976
000C06 NOMENCLATURE FOR STACKING IN PHYLLOSILICATES : REPORT OF THE ASSOCIATION INTERNATIONALE POUR L'ETUDE DES ARGILES (AIPEA) NOMENCLATURE COMMITTEE FOR 2008Stephen GuggenheimChairman, AIPEA Nomenclature Committee, Department of Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor StChicago, Illinois 60607USA1 aut.John M. AdamsDepartment of Engineering, School of Engineering and Computer Science, University of Exeter, Harrison Building, North Park RoadExeter EX4 4QFGBR2 aut.Faiza BergayaCentre de Recherche de la Matière Divisée, CNRS (National Center of Scientific Research)-University of Orléans, 1b Rue de la Férollerie45 071 OrléansFRA3 aut.Maria F. BrigattiDepartment of Earth Sciences, University of Modena, Largo S. Eufemia 1941100, ModenaITA4 aut.Victor A. DritsGeological Institute of the Russian Academy of Science, 7 Pyzerskii PerMoscow J-17RUS5 aut.Milton L. L. Formoso9500, Ave Bento Gonçalves, Campus do Vale, Instit. of Geosciences, University Federal do Rio Grande do SulPorto Alegre -RS -CEP-91540-000BRA6 aut.Emilio GalanDepartmento de Cristalografia y Mineralogía, Facultad de Química, Universidad de Sevilla41071 SevillaESP7 aut.Toshihiro KogureDepartment of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 7-3-1 HongoBunkyo-ku, TokyoJPN8 aut.Helge StanjekClay and Interface Mineralogy, RWTH Aachen University, Wuellnerstr. 2D52056 AachenDEU9 aut.Joseph W. StuckiDepartment of Natural Resources and Environmental Sciences, 1102 S. Goodwin Ave., University of IllinoisUrbana, Illinois, 61801USA10 aut.09-02163822009PASCAL 09-0216382 INISTPascal:09-0216382001D730009-8604Clays clay miner.Clays and clay mineralsnomenclatureNomenclature0009-8604CLCMABClays clay miner.571NOMENCLATURE FOR STACKING IN PHYLLOSILICATES : REPORT OF THE ASSOCIATION INTERNATIONALE POUR L'ETUDE DES ARGILES (AIPEA) NOMENCLATURE COMMITTEE FOR 2008GUGGENHEIM (Stephen)ADAMS (John M.)BERGAYA (Faiza)BRIGATTI (Maria F.)DRITS (Victor A.)FORMOSO (Milton L. L.)GALAN (Emilio)KOGURE (Toshihiro)STANJEK (Helge)STUCKI (Joseph W.)Chairman, AIPEA Nomenclature Committee, Department of Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor StChicago, Illinois 60607USA1 aut.Department of Engineering, School of Engineering and Computer Science, University of Exeter, Harrison Building, North Park RoadExeter EX4 4QFGBR2 aut.Centre de Recherche de la Matière Divisée, CNRS (National Center of Scientific Research)-University of Orléans, 1b Rue de la Férollerie45 071 OrléansFRA3 aut.Department of Earth Sciences, University of Modena, Largo S. Eufemia 1941100, ModenaITA4 aut.Geological Institute of the Russian Academy of Science, 7 Pyzerskii PerMoscow J-17RUS5 aut.9500, Ave Bento Gonçalves, Campus do Vale, Instit. of Geosciences, University Federal do Rio Grande do SulPorto Alegre -RS -CEP-91540-000BRA6 aut.Departmento de Cristalografia y Mineralogía, Facultad de Química, Universidad de Sevilla41071 SevillaESP7 aut.Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 7-3-1 HongoBunkyo-ku, TokyoJPN8 aut.Clay and Interface Mineralogy, RWTH Aachen University, Wuellnerstr. 2D52056 AachenDEU9 aut.Department of Natural Resources and Environmental Sciences, 1102 S. Goodwin Ave., University of IllinoisUrbana, Illinois, 61801USA10 aut.134-1352009ENGINIST143833540001849907001200000© 2009 INIST-CNRS. All rights reserved.1/4 p.09-0216382PAClays and clay mineralsUSA001E01A02220A02Nomenclature01nomenclature01Nomenclatura01159OTOOTOPASCAL 09-0216382 INISTNOMENCLATURE FOR STACKING IN PHYLLOSILICATES : REPORT OF THE ASSOCIATION INTERNATIONALE POUR L'ETUDE DES ARGILES (AIPEA) NOMENCLATURE COMMITTEE FOR 2008GUGGENHEIM (Stephen); ADAMS (John M.); BERGAYA (Faiza); BRIGATTI (Maria F.); DRITS (Victor A.); FORMOSO (Milton L. L.); GALAN (Emilio); KOGURE (Toshihiro); STANJEK (Helge); STUCKI (Joseph W.)Chairman, AIPEA Nomenclature Committee, Department of Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor St/Chicago, Illinois 60607/Etats-Unis (1 aut.); Department of Engineering, School of Engineering and Computer Science, University of Exeter, Harrison Building, North Park Road/Exeter EX4 4QF/Royaume-Uni (2 aut.); Centre de Recherche de la Matière Divisée, CNRS (National Center of Scientific Research)-University of Orléans, 1b Rue de la Férollerie/45 071 Orléans/France (3 aut.); Department of Earth Sciences, University of Modena, Largo S. Eufemia 19/41100, Modena/Italie (4 aut.); Geological Institute of the Russian Academy of Science, 7 Pyzerskii Per/Moscow J-17/Russie (5 aut.); 9500, Ave Bento Gonçalves, Campus do Vale, Instit. of Geosciences, University Federal do Rio Grande do Sul/Porto Alegre -RS -CEP-91540-000/Brésil (6 aut.); Departmento de Cristalografia y Mineralogía, Facultad de Química, Universidad de Sevilla/41071 Sevilla/Espagne (7 aut.); Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 7-3-1 Hongo/Bunkyo-ku, Tokyo/Japon (8 aut.); Clay and Interface Mineralogy, RWTH Aachen University, Wuellnerstr. 2/D52056 Aachen/Allemagne (9 aut.); Department of Natural Resources and Environmental Sciences, 1102 S. Goodwin Ave., University of Illinois/Urbana, Illinois, 61801/Etats-Unis (10 aut.)
Publication en série; Niveau analytique
Clays and clay minerals; ISSN 0009-8604; Coden CLCMAB; Etats-Unis; Da. 2009; Vol. 57; No. 1; Pp. 134-135; Bibl. 1/4 p.Anglais001E01A02; 220A02NomenclaturenomenclatureNomenclaturaINIST-14383.35400018499070012009-0216382
000C07 Predicting freedom from clinical events in non-ST-elevation acute coronary syndromes : the Global Registry of Acute Coronary EventsD. BriegerCoronary Care Unit, Concord HospitalConcordAUS1 aut.8 aut.K. A. A. FoxCardiovascular Research, Division of Medical & Radiological Sciences, The University of EdinburghEdinburghGBR2 aut.G. FitzgeraldCenter for Outcomes Research, University of Massachusetts Medical SchoolWorcesterUSA3 aut.9 aut.10 aut.K. A. EagleUniversity of Michigan Health SystemAnn Arbor, MichiganUSA4 aut.A. BudajPostgraduate Medical School, Department of Cardiology, Grochowski HospitalWarsawPOL5 aut.A. AvezumDante Pazzanese Institute of CardiologySao PauloBRA6 aut.C. B. GrangerDuke University Medical CenterDurham, North CarolinaUSA7 aut.B. CostaCoronary Care Unit, Concord HospitalConcordAUS1 aut.8 aut.F. A. Jr AndersonCenter for Outcomes Research, University of Massachusetts Medical SchoolWorcesterUSA3 aut.9 aut.10 aut.Ph. G. StegCenter for Outcomes Research, University of Massachusetts Medical SchoolWorcesterUSA3 aut.9 aut.10 aut.Département de Cardiologie, INSERM U-698, Université Paris 7, AP-HPParisFRA10 aut.09-02210192009PASCAL 09-0221019 INISTPascal:09-0221019001D721355-6037Heart : (Lond. 1996)Heart : (London 1996)AcuteAcute coronary syndromeCardiologyCirculatory systemCoronary arteryCoronary heart diseaseST elevationCardiopathie coronaireSusdécalage STAiguArtère coronaireAppareil circulatoireCardiologieSyndrome coronaire aigu
Objective: To identify patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) with a low likelihood of any adverse in-hospital event. Design, setting and patients: Data were analysed from 24 097 patients with NSTEMI or unstable angina included in the Global Registry of Acute Coronary Events (January 2001 to September 2007). Main outcome measures: In-hospital events were myocardial infarction, arrhythmia, congestive heart failure or shock, major bleeding, stroke or death. Two-thirds of the patients were randomly chosen for model development and the remainder for model validation. Multiple logistic regression identified predictors of freedom from an in-hospital event, and a Freedom-from-Event score was developed. Results: Of the 16 127 patients in the model development group, 19.1% experienced an in-hospital adverse event. Fifteen factors independently predicted freedom from an adverse event: younger age; lower Killip class; unstable angina presentation; no hypotension; no ST deviation; no cardiac arrest at presentation; normal creatinine; decreased pulse rate; no hospital transfer; no history of diabetes, heart failure, peripheral arterial disease, or atrial fibrillation; prehospital use of statins, and no chronic warfarin. In the validation group, 18.6% experienced an adverse event. The model discriminated well between patients experiencing an in-hospital event and those who did not in both derivation and validation groups (c-statistic = 0.77 in both). Patients in the three lowest risk deciles had a very low in-hospital mortality (<0.5%) and an uncomplicated clinical course (>93% event-free in hospital). The model also predicted freedom from postdischarge events (death, myocardial infarction, stroke; c-statistic = 0.77). Conclusions: The GRACE Freedom-from-Event score can predict the in-hospital course of NSTE-ACS, and identifies up to 30% of the admitted population at low risk of death or any adverse in-hospital event.
1355-6037Heart : (Lond. 1996)9511Predicting freedom from clinical events in non-ST-elevation acute coronary syndromes : the Global Registry of Acute Coronary EventsBRIEGER (D.)FOX (K. A. A.)FITZGERALD (G.)EAGLE (K. A.)BUDAJ (A.)AVEZUM (A.)GRANGER (C. B.)COSTA (B.)ANDERSON (F. A. JR)STEG (Ph. G.)Coronary Care Unit, Concord HospitalConcordAUS1 aut.8 aut.Cardiovascular Research, Division of Medical & Radiological Sciences, The University of EdinburghEdinburghGBR2 aut.Center for Outcomes Research, University of Massachusetts Medical SchoolWorcesterUSA3 aut.9 aut.10 aut.University of Michigan Health SystemAnn Arbor, MichiganUSA4 aut.Postgraduate Medical School, Department of Cardiology, Grochowski HospitalWarsawPOL5 aut.Dante Pazzanese Institute of CardiologySao PauloBRA6 aut.Duke University Medical CenterDurham, North CarolinaUSA7 aut.Département de Cardiologie, INSERM U-698, Université Paris 7, AP-HPParisFRA10 aut.GRACE InvestigatorsINC888-8942009ENGINIST39953540001861730900700000© 2009 INIST-CNRS. All rights reserved.30 ref.09-0221019PAHeart : (London 1996)GBRObjective: To identify patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) with a low likelihood of any adverse in-hospital event. Design, setting and patients: Data were analysed from 24 097 patients with NSTEMI or unstable angina included in the Global Registry of Acute Coronary Events (January 2001 to September 2007). Main outcome measures: In-hospital events were myocardial infarction, arrhythmia, congestive heart failure or shock, major bleeding, stroke or death. Two-thirds of the patients were randomly chosen for model development and the remainder for model validation. Multiple logistic regression identified predictors of freedom from an in-hospital event, and a Freedom-from-Event score was developed. Results: Of the 16 127 patients in the model development group, 19.1% experienced an in-hospital adverse event. Fifteen factors independently predicted freedom from an adverse event: younger age; lower Killip class; unstable angina presentation; no hypotension; no ST deviation; no cardiac arrest at presentation; normal creatinine; decreased pulse rate; no hospital transfer; no history of diabetes, heart failure, peripheral arterial disease, or atrial fibrillation; prehospital use of statins, and no chronic warfarin. In the validation group, 18.6% experienced an adverse event. The model discriminated well between patients experiencing an in-hospital event and those who did not in both derivation and validation groups (c-statistic = 0.77 in both). Patients in the three lowest risk deciles had a very low in-hospital mortality (<0.5%) and an uncomplicated clinical course (>93% event-free in hospital). The model also predicted freedom from postdischarge events (death, myocardial infarction, stroke; c-statistic = 0.77). Conclusions: The GRACE Freedom-from-Event score can predict the in-hospital course of NSTE-ACS, and identifies up to 30% of the admitted population at low risk of death or any adverse in-hospital event.002B12A03002B12A05Cardiopathie coronaire01Coronary heart disease01Cardiopatía coronaria01Susdécalage ST09ST elevation09ST elevación(ECG)09Aigu10Acute10Agudo10Artère coronaire11Coronary artery11Arteria coronaria11Appareil circulatoire12Circulatory system12Aparato circulatorio12Cardiologie13Cardiology13Cardiología13Syndrome coronaire aiguCD96Acute coronary syndromeCD96Síndrome coronario agudoCD96Pathologie de l'appareil circulatoire37Cardiovascular disease37Aparato circulatorio patología37Pathologie du myocarde38Myocardial disease38Miocardio patología38159OTOOTOPASCAL 09-0221019 INISTPredicting freedom from clinical events in non-ST-elevation acute coronary syndromes : the Global Registry of Acute Coronary EventsBRIEGER (D.); FOX (K. A. A.); FITZGERALD (G.); EAGLE (K. A.); BUDAJ (A.); AVEZUM (A.); GRANGER (C. B.); COSTA (B.); ANDERSON (F. A. JR); STEG (Ph. G.)Coronary Care Unit, Concord Hospital/Concord/Australie (1 aut., 8 aut.); Cardiovascular Research, Division of Medical & Radiological Sciences, The University of Edinburgh/Edinburgh/Royaume-Uni (2 aut.); Center for Outcomes Research, University of Massachusetts Medical School/Worcester/Etats-Unis (3 aut., 9 aut., 10 aut.); University of Michigan Health System/Ann Arbor, Michigan/Etats-Unis (4 aut.); Postgraduate Medical School, Department of Cardiology, Grochowski Hospital/Warsaw/Pologne (5 aut.); Dante Pazzanese Institute of Cardiology/Sao Paulo/Brésil (6 aut.); Duke University Medical Center/Durham, North Carolina/Etats-Unis (7 aut.); Département de Cardiologie, INSERM U-698, Université Paris 7, AP-HP/Paris/France (10 aut.)
Publication en série; Niveau analytique
Heart : (London 1996); ISSN 1355-6037; Royaume-Uni; Da. 2009; Vol. 95; No. 11; Pp. 888-894; Bibl. 30 ref.AnglaisObjective: To identify patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) with a low likelihood of any adverse in-hospital event. Design, setting and patients: Data were analysed from 24 097 patients with NSTEMI or unstable angina included in the Global Registry of Acute Coronary Events (January 2001 to September 2007). Main outcome measures: In-hospital events were myocardial infarction, arrhythmia, congestive heart failure or shock, major bleeding, stroke or death. Two-thirds of the patients were randomly chosen for model development and the remainder for model validation. Multiple logistic regression identified predictors of freedom from an in-hospital event, and a Freedom-from-Event score was developed. Results: Of the 16 127 patients in the model development group, 19.1% experienced an in-hospital adverse event. Fifteen factors independently predicted freedom from an adverse event: younger age; lower Killip class; unstable angina presentation; no hypotension; no ST deviation; no cardiac arrest at presentation; normal creatinine; decreased pulse rate; no hospital transfer; no history of diabetes, heart failure, peripheral arterial disease, or atrial fibrillation; prehospital use of statins, and no chronic warfarin. In the validation group, 18.6% experienced an adverse event. The model discriminated well between patients experiencing an in-hospital event and those who did not in both derivation and validation groups (c-statistic = 0.77 in both). Patients in the three lowest risk deciles had a very low in-hospital mortality (<0.5%) and an uncomplicated clinical course (>93% event-free in hospital). The model also predicted freedom from postdischarge events (death, myocardial infarction, stroke; c-statistic = 0.77). Conclusions: The GRACE Freedom-from-Event score can predict the in-hospital course of NSTE-ACS, and identifies up to 30% of the admitted population at low risk of death or any adverse in-hospital event.002B12A03; 002B12A05Cardiopathie coronaire; Susdécalage ST; Aigu; Artère coronaire; Appareil circulatoire; Cardiologie; Syndrome coronaire aiguPathologie de l'appareil circulatoire; Pathologie du myocardeCoronary heart disease; ST elevation; Acute; Coronary artery; Circulatory system; Cardiology; Acute coronary syndromeCardiovascular disease; Myocardial diseaseCardiopatía coronaria; ST elevación(ECG); Agudo; Arteria coronaria; Aparato circulatorio; Cardiología; Síndrome coronario agudoINIST-3995.35400018617309007009-0221019
000C08 Spatial patterns of grasses influence soil macrofauna biodiversity in Amazonian pasturesJérome MathieuLaboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat93143 BondyFRA1 aut.4 aut.5 aut.6 aut.Michel GrimaldiUMR137 -Biosol, UFRA ICA, CP91766077-530 Belém (PA)BRA2 aut.Pascal JouquetIRD -IMWI, UMR137 Biosol, SFRI, Dong Ngac, Tu LiemHanoïVNM3 aut.Corinne RoulandLaboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat93143 BondyFRA1 aut.4 aut.5 aut.6 aut.Patrick LavelleLaboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat93143 BondyFRA1 aut.4 aut.5 aut.6 aut.Thierry DesjardinsLaboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat93143 BondyFRA1 aut.4 aut.5 aut.6 aut.Jean-Pierre RossiINRA -UMR BIOGECO, Domaine de l'Hermitage Pierroton 69, route d'Arcachon33 612 CestasFRA7 aut.09-02226432009PASCAL 09-0222643 INISTPascal:09-0222643001D710038-0717Soil biol. biochem.Soil biology & biochemistryAmazon BasinBiodiversityEcosystemGramineaeMacrofaunaMicroclimatePastureSoil faunaSoil scienceSpatial distributionTemperatureRépartition spatialeMacrofauneFaune édaphiqueDiversité biologiquePâtureEcosystèmeTempératureMicroclimatScience du solGramineaeBassin Amazone
Grasslands are often characterized by small-scale spatial heterogeneity due to the juxtaposition of grass tufts and bare ground. Although the mechanisms generating plant spatial patterns have been widely studied, few studies concentrated on the consequences of these patterns on belowground macrofauna. Our objective was to analyze the impact of grass tuft (Brachiaria bryzantha cv. marandu) spatial distribution on soil macrofauna diversity in Amazonian pastures, at a small scale (less than 9 m2). Soil macrofauna was sampled among B. bryzantha tufts, which showed a variable spatial distribution ranging from dense to loose vegetation cover. The vegetation configuration explained 69% of the variation in total soil macrofauna density and 68% of the variation in total species richness. Soil macrofauna was mainly found in the upper 10 cm of soil and biodiversity decreased with increasing distances to the nearest grass tuft and increased with increasing vegetation cover. The size of the largest grass tuft and the micro-landscape connectivity also had a significant effect on biodiversity. The density and species richness of the three principal soil ecological engineers (earthworms, ants and termites) showed the best correlations with vegetation configuration. In addition, soil temperature significantly decreased near the plants, while soil water content was not influenced by the grass tufts. We conclude that soil macrofauna diversity is low in pastures except close to the grass tufts, which can thus be considered as biodiversity hotspots. The spatial arrangement of B. bryzantha tussocks influences soil macrofauna biodiversity by modifying soil properties in their vicinity. The possible mechanisms by which these plants could affect soil macrofauna are discussed.
0038-0717SBIOAHSoil biol. biochem.413Spatial patterns of grasses influence soil macrofauna biodiversity in Amazonian pasturesMATHIEU (Jérome)GRIMALDI (Michel)JOUQUET (Pascal)ROULAND (Corinne)LAVELLE (Patrick)DESJARDINS (Thierry)ROSSI (Jean-Pierre)Laboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat93143 BondyFRA1 aut.4 aut.5 aut.6 aut.UMR137 -Biosol, UFRA ICA, CP91766077-530 Belém (PA)BRA2 aut.IRD -IMWI, UMR137 Biosol, SFRI, Dong Ngac, Tu LiemHanoïVNM3 aut.INRA -UMR BIOGECO, Domaine de l'Hermitage Pierroton 69, route d'Arcachon33 612 CestasFRA7 aut.586-5932009ENGINIST143603540001849855101700000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0222643PASoil biology & biochemistryGBRGrasslands are often characterized by small-scale spatial heterogeneity due to the juxtaposition of grass tufts and bare ground. Although the mechanisms generating plant spatial patterns have been widely studied, few studies concentrated on the consequences of these patterns on belowground macrofauna. Our objective was to analyze the impact of grass tuft (Brachiaria bryzantha cv. marandu) spatial distribution on soil macrofauna diversity in Amazonian pastures, at a small scale (less than 9 m2). Soil macrofauna was sampled among B. bryzantha tufts, which showed a variable spatial distribution ranging from dense to loose vegetation cover. The vegetation configuration explained 69% of the variation in total soil macrofauna density and 68% of the variation in total species richness. Soil macrofauna was mainly found in the upper 10 cm of soil and biodiversity decreased with increasing distances to the nearest grass tuft and increased with increasing vegetation cover. The size of the largest grass tuft and the micro-landscape connectivity also had a significant effect on biodiversity. The density and species richness of the three principal soil ecological engineers (earthworms, ants and termites) showed the best correlations with vegetation configuration. In addition, soil temperature significantly decreased near the plants, while soil water content was not influenced by the grass tufts. We conclude that soil macrofauna diversity is low in pastures except close to the grass tufts, which can thus be considered as biodiversity hotspots. The spatial arrangement of B. bryzantha tussocks influences soil macrofauna biodiversity by modifying soil properties in their vicinity. The possible mechanisms by which these plants could affect soil macrofauna are discussed.002A32B03B4DRépartition spatiale01Spatial distribution01Distribución espacial01Macrofaune02Macrofauna02Macrofauna02Faune édaphique03Soil fauna03Fauna edáfica03Diversité biologique04Biodiversity04Diversidad biológica04Pâture05Pasture05Pastizal05Ecosystème06Ecosystem06Ecosistema06Température07Temperature07Temperatura07Microclimat08Microclimate08Microclima08Science du sol09Soil science09Ciencia del suelo09GramineaeNS10GramineaeNS10GramineaeNS10Bassin AmazoneNG20Amazon BasinNG20Cuenca AmazonasNG20FauneFaunaFaunaMonocotyledonesNSMonocotyledonesNSMonocotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSAmérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGZone tropicale59Tropical zone59Zona tropical59166OTOOTOPASCAL 09-0222643 INISTSpatial patterns of grasses influence soil macrofauna biodiversity in Amazonian pasturesMATHIEU (Jérome); GRIMALDI (Michel); JOUQUET (Pascal); ROULAND (Corinne); LAVELLE (Patrick); DESJARDINS (Thierry); ROSSI (Jean-Pierre)Laboratoire d'Écologie des Sols Tropicaux, UMR 137 -BioSol, univ Paris 06 UPMC-IRD, 32 avenue H. Varagnat/93143 Bondy/France (1 aut., 4 aut., 5 aut., 6 aut.); UMR137 -Biosol, UFRA ICA, CP917/66077-530 Belém (PA)/Brésil (2 aut.); IRD -IMWI, UMR137 Biosol, SFRI, Dong Ngac, Tu Liem/Hanoï/Viet Nam (3 aut.); INRA -UMR BIOGECO, Domaine de l'Hermitage Pierroton 69, route d'Arcachon/33 612 Cestas/France (7 aut.)
Publication en série; Niveau analytique
Soil biology & biochemistry; ISSN 0038-0717; Coden SBIOAH; Royaume-Uni; Da. 2009; Vol. 41; No. 3; Pp. 586-593; Bibl. 3/4 p.AnglaisGrasslands are often characterized by small-scale spatial heterogeneity due to the juxtaposition of grass tufts and bare ground. Although the mechanisms generating plant spatial patterns have been widely studied, few studies concentrated on the consequences of these patterns on belowground macrofauna. Our objective was to analyze the impact of grass tuft (Brachiaria bryzantha cv. marandu) spatial distribution on soil macrofauna diversity in Amazonian pastures, at a small scale (less than 9 m2). Soil macrofauna was sampled among B. bryzantha tufts, which showed a variable spatial distribution ranging from dense to loose vegetation cover. The vegetation configuration explained 69% of the variation in total soil macrofauna density and 68% of the variation in total species richness. Soil macrofauna was mainly found in the upper 10 cm of soil and biodiversity decreased with increasing distances to the nearest grass tuft and increased with increasing vegetation cover. The size of the largest grass tuft and the micro-landscape connectivity also had a significant effect on biodiversity. The density and species richness of the three principal soil ecological engineers (earthworms, ants and termites) showed the best correlations with vegetation configuration. In addition, soil temperature significantly decreased near the plants, while soil water content was not influenced by the grass tufts. We conclude that soil macrofauna diversity is low in pastures except close to the grass tufts, which can thus be considered as biodiversity hotspots. The spatial arrangement of B. bryzantha tussocks influences soil macrofauna biodiversity by modifying soil properties in their vicinity. The possible mechanisms by which these plants could affect soil macrofauna are discussed.002A32B03B4DRépartition spatiale; Macrofaune; Faune édaphique; Diversité biologique; Pâture; Ecosystème; Température; Microclimat; Science du sol; Gramineae; Bassin AmazoneFaune; Monocotyledones; Angiospermae; Spermatophyta; Amérique du Sud; Amérique; Zone tropicaleSpatial distribution; Macrofauna; Soil fauna; Biodiversity; Pasture; Ecosystem; Temperature; Microclimate; Soil science; Gramineae; Amazon BasinFauna; Monocotyledones; Angiospermae; Spermatophyta; South America; America; Tropical zoneDistribución espacial; Macrofauna; Fauna edáfica; Diversidad biológica; Pastizal; Ecosistema; Temperatura; Microclima; Ciencia del suelo; Gramineae; Cuenca AmazonasINIST-14360.35400018498551017009-0222643
000C09 L'otospongiose post-traumatique : coïncidence ou cofacteur déclenchant ?J. F. PolanskiG. Portmann InstituteCuritibaBRA1 aut.M. F. M. QuispeG. Portmann InstituteLimaPER2 aut.F. FelixG. Portmann InstituteRio de JaneiroBRA3 aut.L. CondonG. Portmann InstituteBradfordGBR4 aut.D. PortmannPortmann Institute, 114 Avenue d'Arès33074 BordeauxFRA5 aut.09-02228642008PASCAL 09-0222864 INISTPascal:09-0222864001D700035-1334Rev. laryngol. otol. rhinol. : (1919)Revue de laryngologie, d'otologie et de rhinologie : (1919)CofactorENTEtiologyGeneticsMechanicsOtosclerosisStimulationTraumaOtospongioseTraumatismeCofacteurStimulationMécaniqueGénétiqueEtiologieORL
Objectifs : l'étiologie de l'otospongiose est encore discutée. Il est probable cependant qu'elle conjugue des facteurs environnementaux aux facteurs génétiques. Le but de ce travail est de faire la description de 3 cas d'otospongiose avec des antécèdents de traumatisme crânien et de faire une revue de la littérature. Cas cliniques: 3 patients avec un diagnostic clinique d'otospongiose qui ont été opéré et dont l'histoire clinique était un traumatisme crânien. Discussion et conclusion: il est probable que des cofacteurs environnementaux comme un traumatisme soient nécessaires pour révéler l'otospongiose. L'activation de l'otospongiose par le traumatisme n'est pas encore certaine. Ces cas sont rares et certainement peu recherchés.
0035-1334RLORADRev. laryngol. otol. rhinol. : (1919)1291L'otospongiose post-traumatique : coïncidence ou cofacteur déclenchant ?POLANSKI (J. F.)QUISPE (M. F. M.)FELIX (F.)CONDON (L.)PORTMANN (D.)G. Portmann InstituteCuritibaBRA1 aut.G. Portmann InstituteLimaPER2 aut.G. Portmann InstituteRio de JaneiroBRA3 aut.G. Portmann InstituteBradfordGBR4 aut.Portmann Institute, 114 Avenue d'Arès33074 BordeauxFRA5 aut.57-592008FREengINIST34963540001860633600900000© 2009 INIST-CNRS. All rights reserved.10 ref.09-0222864PARevue de laryngologie, d'otologie et de rhinologie : (1919)FRAPost-traumatic otosclerosis : Coincidence or trigger factor?Objectifs : l'étiologie de l'otospongiose est encore discutée. Il est probable cependant qu'elle conjugue des facteurs environnementaux aux facteurs génétiques. Le but de ce travail est de faire la description de 3 cas d'otospongiose avec des antécèdents de traumatisme crânien et de faire une revue de la littérature. Cas cliniques: 3 patients avec un diagnostic clinique d'otospongiose qui ont été opéré et dont l'histoire clinique était un traumatisme crânien. Discussion et conclusion: il est probable que des cofacteurs environnementaux comme un traumatisme soient nécessaires pour révéler l'otospongiose. L'activation de l'otospongiose par le traumatisme n'est pas encore certaine. Ces cas sont rares et certainement peu recherchés.002B10D02Otospongiose01Otosclerosis01Otoesclerosis01Traumatisme02Trauma02Traumatismo02Cofacteur07Cofactor07Cofactor07Stimulation08Stimulation08Estimulación08Mécanique09Mechanics09Mecánica09Génétique13Genetics13Genética13Etiologie14Etiology14Etiología14ORL15ENT15ORL15Maladie héréditaire37Genetic disease37Enfermedad hereditaria37Pathologie ORL38ENT disease38ORL patología38Pathologie de l'oreille interne39Internal ear disease39Oido interno patología39166OTOOTOPASCAL 09-0222864 INISTL'otospongiose post-traumatique : coïncidence ou cofacteur déclenchant ?(Post-traumatic otosclerosis : Coincidence or trigger factor?)POLANSKI (J. F.); QUISPE (M. F. M.); FELIX (F.); CONDON (L.); PORTMANN (D.)G. Portmann Institute/Curitiba/Brésil (1 aut.); G. Portmann Institute/Lima/Pérou (2 aut.); G. Portmann Institute/Rio de Janeiro/Brésil (3 aut.); G. Portmann Institute/Bradford/Royaume-Uni (4 aut.); Portmann Institute, 114 Avenue d'Arès/33074 Bordeaux/France (5 aut.)
Publication en série; Niveau analytique
Revue de laryngologie, d'otologie et de rhinologie : (1919); ISSN 0035-1334; Coden RLORAD; France; Da. 2008; Vol. 129; No. 1; Pp. 57-59; Abs. anglais; Bibl. 10 ref.FrançaisObjectifs : l'étiologie de l'otospongiose est encore discutée. Il est probable cependant qu'elle conjugue des facteurs environnementaux aux facteurs génétiques. Le but de ce travail est de faire la description de 3 cas d'otospongiose avec des antécèdents de traumatisme crânien et de faire une revue de la littérature. Cas cliniques: 3 patients avec un diagnostic clinique d'otospongiose qui ont été opéré et dont l'histoire clinique était un traumatisme crânien. Discussion et conclusion: il est probable que des cofacteurs environnementaux comme un traumatisme soient nécessaires pour révéler l'otospongiose. L'activation de l'otospongiose par le traumatisme n'est pas encore certaine. Ces cas sont rares et certainement peu recherchés.002B10D02Otospongiose; Traumatisme; Cofacteur; Stimulation; Mécanique; Génétique; Etiologie; ORLMaladie héréditaire; Pathologie ORL; Pathologie de l'oreille interneOtosclerosis; Trauma; Cofactor; Stimulation; Mechanics; Genetics; Etiology; ENTGenetic disease; ENT disease; Internal ear diseaseOtoesclerosis; Traumatismo; Cofactor; Estimulación; Mecánica; Genética; Etiología; ORLINIST-3496.35400018606336009009-0222864
000C10 Magnetic ordering of the CeFeSi-type La<sub>0.5</sub>Tb<sub>0.5</sub>MnSi compoundA. V. MorozkinDepartment of Chemistry, Moscow State University, Leninskie Gory, House 1, Building 3, GSP-2Moscow, 119992RUS1 aut.O. IsnardInstitute Laue-Langevin, 6 Rue J. Horowitz38042 GrenobleFRA2 aut.Laboratoire de Cristallographie du CNRS, Université J. Fourier, BP166X38042 GrenobleFRA2 aut.T. I. IvanovaDepartment of Physics, Moscow State University, Leninskie GoryMoscow, 119899RUS3 aut.Jagat LamsalUniversity of Missouri-ColumbiaColumbia, MO 65211USA4 aut.5 aut.W. B. YelonUniversity of Missouri-ColumbiaColumbia, MO 65211USA4 aut.5 aut.S. K. MalikInternational Center for Condenced Matter Physics (ICCMP), University of BrasiliaBrasilia, 70904-970BRA6 aut.09-02240322009PASCAL 09-0224032 INISTPascal:09-0224032001D690925-8388J. alloys compd.Journal of alloys and compoundsAntiferromagnetismHigh temperatureIntermetallic compoundsLanthanum alloysMagnetic momentsMagnetic orderingMagnetic structureMagnetic transitionsManganese alloysNeutron diffractionRare earth alloysSilicon alloysSpace groupsTerbium alloysTransition element alloysXY modelOrdre magnétiqueDiffraction neutronGroupe espaceAntiferromagnétismeHaute températureMoment magnétiqueModèle X YTransition magnétiqueStructure magnétiqueLanthane alliageSilicium alliageComposé intermétalliqueManganèse alliageTerbium alliageMétal transition alliageLanthanide alliage
A neutron diffraction investigation has been carried out on the tetragonal CeFeSi-type (tP6, space group P4/nmm, No. 129-2) La0.5Tb0.5MnSi compound. The La0.5Tb0.5MnSi compound undergoes an antiferromagnetic ordering around 220(6)K followed by another antiferromagnetic ordering below 150(6)K. High-temperature transition corresponds to the antiferromagnetic ordering of manganese magnetic moments in the XY plane. Low-temperature magnetic transition corresponds to the antiferromagnetic ordering of terbium magnetic moments with orthorhombic distortion of initial tetragonal unit cell.
0925-8388J. alloys compd.4711-2Magnetic ordering of the CeFeSi-type La0.5Tb0.5MnSi compoundMOROZKIN (A. V.)ISNARD (O.)IVANOVA (T. I.)LAMSAL (Jagat)YELON (W. B.)MALIK (S. K.)Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building 3, GSP-2Moscow, 119992RUS1 aut.Institute Laue-Langevin, 6 Rue J. Horowitz38042 GrenobleFRA2 aut.Laboratoire de Cristallographie du CNRS, Université J. Fourier, BP166X38042 GrenobleFRA2 aut.Department of Physics, Moscow State University, Leninskie GoryMoscow, 119899RUS3 aut.University of Missouri-ColumbiaColumbia, MO 65211USA4 aut.5 aut.International Center for Condenced Matter Physics (ICCMP), University of BrasiliaBrasilia, 70904-970BRA6 aut.L1-L42009ENGINIST11513540001849073100100000© 2009 INIST-CNRS. All rights reserved.6 ref.09-0224032PCRAJournal of alloys and compoundsCHEA neutron diffraction investigation has been carried out on the tetragonal CeFeSi-type (tP6, space group P4/nmm, No. 129-2) La0.5Tb0.5MnSi compound. The La0.5Tb0.5MnSi compound undergoes an antiferromagnetic ordering around 220(6)K followed by another antiferromagnetic ordering below 150(6)K. High-temperature transition corresponds to the antiferromagnetic ordering of manganese magnetic moments in the XY plane. Low-temperature magnetic transition corresponds to the antiferromagnetic ordering of terbium magnetic moments with orthorhombic distortion of initial tetragonal unit cell.001B70E25Ordre magnétique02Magnetic ordering02Diffraction neutron03Neutron diffraction03Groupe espace04Space groups04Antiferromagnétisme05Antiferromagnetism05Haute température06High temperature06Alta temperatura06Moment magnétique07Magnetic moments07Modèle X Y08XY model08Transition magnétique09Magnetic transitions09Structure magnétique10Magnetic structure10Lanthane alliage11Lanthanum alloys11Silicium alliage15Silicon alloys15Composé intermétallique17Intermetallic compounds17Manganèse alliage20Manganese alloys20Terbium alliage21Terbium alloys21Métal transition alliage48Transition element alloys48Lanthanide alliage49Rare earth alloys49166PASCAL 09-0224032 INISTMagnetic ordering of the CeFeSi-type La0.5Tb0.5MnSi compoundMOROZKIN (A. V.); ISNARD (O.); IVANOVA (T. I.); LAMSAL (Jagat); YELON (W. B.); MALIK (S. K.)Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building 3, GSP-2/Moscow, 119992/Russie (1 aut.); Institute Laue-Langevin, 6 Rue J. Horowitz/38042 Grenoble/France (2 aut.); Laboratoire de Cristallographie du CNRS, Université J. Fourier, BP166X/38042 Grenoble/France (2 aut.); Department of Physics, Moscow State University, Leninskie Gory/Moscow, 119899/Russie (3 aut.); University of Missouri-Columbia/Columbia, MO 65211/Etats-Unis (4 aut., 5 aut.); International Center for Condenced Matter Physics (ICCMP), University of Brasilia/Brasilia, 70904-970/Brésil (6 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Journal of alloys and compounds; ISSN 0925-8388; Suisse; Da. 2009; Vol. 471; No. 1-2; L1-L4; Bibl. 6 ref.AnglaisA neutron diffraction investigation has been carried out on the tetragonal CeFeSi-type (tP6, space group P4/nmm, No. 129-2) La0.5Tb0.5MnSi compound. The La0.5Tb0.5MnSi compound undergoes an antiferromagnetic ordering around 220(6)K followed by another antiferromagnetic ordering below 150(6)K. High-temperature transition corresponds to the antiferromagnetic ordering of manganese magnetic moments in the XY plane. Low-temperature magnetic transition corresponds to the antiferromagnetic ordering of terbium magnetic moments with orthorhombic distortion of initial tetragonal unit cell.001B70E25Ordre magnétique; Diffraction neutron; Groupe espace; Antiferromagnétisme; Haute température; Moment magnétique; Modèle X Y; Transition magnétique; Structure magnétique; Lanthane alliage; Silicium alliage; Composé intermétallique; Manganèse alliage; Terbium alliage; Métal transition alliage; Lanthanide alliageMagnetic ordering; Neutron diffraction; Space groups; Antiferromagnetism; High temperature; Magnetic moments; XY model; Magnetic transitions; Magnetic structure; Lanthanum alloys; Silicon alloys; Intermetallic compounds; Manganese alloys; Terbium alloys; Transition element alloys; Rare earth alloysAlta temperaturaINIST-1151.35400018490731001009-0224032
000C11 Comparative analysis of Andiodrilus pachoensis casts in forests and pastures of South-Eastern Amazon (Brazil)Fabien ThomasUMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire de Biologie des Sols et des Eaux, Université Paris XII Val de Marne, 61 Avenue du Général de Gaulle94010 CréteilFRA1 aut.7 aut.Jean-Pierre RossiINRA, UMR1202 Biodiversity Genes & Communities33610 CestasFRA2 aut.Thibaud DecaënsLaboratoire d'Ecologie, UPRES-EA 1293 ECODIV, Bat IRESE A, UFR Sciences et Techniques, Université de Rouen76821 Mont Saint AignanFRA3 aut.Michel GrimaldiUMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire d'Écologie des Sols Tropicaux, IRD, 32 Avenue Henri Varagnat93143 BondyFRA4 aut.5 aut.Patrick LavelleUMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire d'Écologie des Sols Tropicaux, IRD, 32 Avenue Henri Varagnat93143 BondyFRA4 aut.5 aut.Paulo Fernando Da Silua MartinsUniversidade Federal Rural da Amazonia (UFRA), Avenida Presidente Tancredo Neves, N° 2501, CP 917, BairroMontese CEP: 66.077-530, Belém-PABRA6 aut.Evelyne Garnier-ZarliUMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire de Biologie des Sols et des Eaux, Université Paris XII Val de Marne, 61 Avenue du Général de Gaulle94010 CréteilFRA1 aut.7 aut.09-02244182008PASCAL 09-0224418 INISTPascal:09-0224418001D681164-5563Eur. j. soil biol.European journal of soil biologyAmazon BasinBrazilComparative studyEarthwormEarthworm castExcretaPasturePhysical propertiesSoil scienceSpatial distributionTropical forestTropical zoneEtude comparativeForêt tropicalePâtureDéjectionRépartition spatialePropriété physiqueZone tropicaleScience du solVer de terreBassin AmazoneBrésilAndiodrilusTurricule
Soil ecosystem engineers produce biogenic structures (casts, mounds, galleries) that strongly affect soil processes. A comparative analysis of the physical characteristics of the casts produced by the earthworm Andiodrilus pachoensis was carried out in four pastures sowed with Brachiaria brizantha and four primary forests on the deforestation front of the Amazonian forest. In both systems, we recorded surface cast density and spatial patterns as well as surface cast physical properties. Cast and vegetation distributions were mapped within plots of sizes ranging from 25 to 50 m2, and cast production was monitored during 2 months. Cast spatial distribution varied greatly among plots and across spatial scales ranging from regular at small spatial scales (0-20 cm) to clumped for larger distance ranges (>80 cm). Cast density was not significantly correlated with grass tuft density and their production was independent from the presence of grass tufts in pastures or litter quantity in forests. Although bulk soil properties (pH, C content, structural stability, etc) differed between pastures and forests, cast physical properties did not differ significantly among the studied ecosystem.
1164-5563Eur. j. soil biol.445-6Comparative analysis of Andiodrilus pachoensis casts in forests and pastures of South-Eastern Amazon (Brazil)THOMAS (Fabien)ROSSI (Jean-Pierre)DECAËNS (Thibaud)GRIMALDI (Michel)LAVELLE (Patrick)DA SILUA MARTINS (Paulo Fernando)GARNIER-ZARLI (Evelyne)UMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire de Biologie des Sols et des Eaux, Université Paris XII Val de Marne, 61 Avenue du Général de Gaulle94010 CréteilFRA1 aut.7 aut.INRA, UMR1202 Biodiversity Genes & Communities33610 CestasFRA2 aut.Laboratoire d'Ecologie, UPRES-EA 1293 ECODIV, Bat IRESE A, UFR Sciences et Techniques, Université de Rouen76821 Mont Saint AignanFRA3 aut.UMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire d'Écologie des Sols Tropicaux, IRD, 32 Avenue Henri Varagnat93143 BondyFRA4 aut.5 aut.Universidade Federal Rural da Amazonia (UFRA), Avenida Presidente Tancredo Neves, N° 2501, CP 917, BairroMontese CEP: 66.077-530, Belém-PABRA6 aut.545-5532008ENGINIST123443540001845893601400000© 2009 INIST-CNRS. All rights reserved.67 ref.09-0224418PAEuropean journal of soil biologyFRASoil ecosystem engineers produce biogenic structures (casts, mounds, galleries) that strongly affect soil processes. A comparative analysis of the physical characteristics of the casts produced by the earthworm Andiodrilus pachoensis was carried out in four pastures sowed with Brachiaria brizantha and four primary forests on the deforestation front of the Amazonian forest. In both systems, we recorded surface cast density and spatial patterns as well as surface cast physical properties. Cast and vegetation distributions were mapped within plots of sizes ranging from 25 to 50 m2, and cast production was monitored during 2 months. Cast spatial distribution varied greatly among plots and across spatial scales ranging from regular at small spatial scales (0-20 cm) to clumped for larger distance ranges (>80 cm). Cast density was not significantly correlated with grass tuft density and their production was independent from the presence of grass tufts in pastures or litter quantity in forests. Although bulk soil properties (pH, C content, structural stability, etc) differed between pastures and forests, cast physical properties did not differ significantly among the studied ecosystem.002A32B03B4DEtude comparative01Comparative study01Estudio comparativo01Forêt tropicale02Tropical forest02Bosque tropical02Pâture03Pasture03Pastizal03Déjection04Excreta04Deyección04Répartition spatiale05Spatial distribution05Distribución espacial05Propriété physique06Physical properties06Propiedad física06Zone tropicale07Tropical zone07Zona tropical07Science du sol08Soil science08Ciencia del suelo08Ver de terre10Earthworm10Lombriz de tierra10Bassin AmazoneNG20Amazon BasinNG20Cuenca AmazonasNG20BrésilNG21BrazilNG21BrasilNG21AndiodrilusINC72TurriculeCD96Earthworm castCD96OligochaetaNSOligochaetaNSOligochaetaNSAnnelidaNSAnnelidaNSAnnelidaNSInvertebrataNSInvertebrataNSInvertebrataNSAmérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGGlossoscolecidaeINC68166OTOOTOPASCAL 09-0224418 INISTComparative analysis of Andiodrilus pachoensis casts in forests and pastures of South-Eastern Amazon (Brazil)THOMAS (Fabien); ROSSI (Jean-Pierre); DECAËNS (Thibaud); GRIMALDI (Michel); LAVELLE (Patrick); DA SILUA MARTINS (Paulo Fernando); GARNIER-ZARLI (Evelyne)UMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire de Biologie des Sols et des Eaux, Université Paris XII Val de Marne, 61 Avenue du Général de Gaulle/94010 Créteil/France (1 aut., 7 aut.); INRA, UMR1202 Biodiversity Genes & Communities/33610 Cestas/France (2 aut.); Laboratoire d'Ecologie, UPRES-EA 1293 ECODIV, Bat IRESE A, UFR Sciences et Techniques, Université de Rouen/76821 Mont Saint Aignan/France (3 aut.); UMR 137 Biodiversité et Fonctionnement du Sol, Laboratoire d'Écologie des Sols Tropicaux, IRD, 32 Avenue Henri Varagnat/93143 Bondy/France (4 aut., 5 aut.); Universidade Federal Rural da Amazonia (UFRA), Avenida Presidente Tancredo Neves, N° 2501, CP 917, Bairro/Montese CEP: 66.077-530, Belém-PA/Brésil (6 aut.)
Publication en série; Niveau analytique
European journal of soil biology; ISSN 1164-5563; France; Da. 2008; Vol. 44; No. 5-6; Pp. 545-553; Bibl. 67 ref.AnglaisSoil ecosystem engineers produce biogenic structures (casts, mounds, galleries) that strongly affect soil processes. A comparative analysis of the physical characteristics of the casts produced by the earthworm Andiodrilus pachoensis was carried out in four pastures sowed with Brachiaria brizantha and four primary forests on the deforestation front of the Amazonian forest. In both systems, we recorded surface cast density and spatial patterns as well as surface cast physical properties. Cast and vegetation distributions were mapped within plots of sizes ranging from 25 to 50 m2, and cast production was monitored during 2 months. Cast spatial distribution varied greatly among plots and across spatial scales ranging from regular at small spatial scales (0-20 cm) to clumped for larger distance ranges (>80 cm). Cast density was not significantly correlated with grass tuft density and their production was independent from the presence of grass tufts in pastures or litter quantity in forests. Although bulk soil properties (pH, C content, structural stability, etc) differed between pastures and forests, cast physical properties did not differ significantly among the studied ecosystem.002A32B03B4DEtude comparative; Forêt tropicale; Pâture; Déjection; Répartition spatiale; Propriété physique; Zone tropicale; Science du sol; Ver de terre; Bassin Amazone; Brésil; Andiodrilus; TurriculeOligochaeta; Annelida; Invertebrata; Amérique du Sud; Amérique; GlossoscolecidaeComparative study; Tropical forest; Pasture; Excreta; Spatial distribution; Physical properties; Tropical zone; Soil science; Earthworm; Amazon Basin; Brazil; Earthworm castOligochaeta; Annelida; Invertebrata; South America; AmericaEstudio comparativo; Bosque tropical; Pastizal; Deyección; Distribución espacial; Propiedad física; Zona tropical; Ciencia del suelo; Lombriz de tierra; Cuenca Amazonas; BrasilINIST-12344.35400018458936014009-0224418
000C12 Intense blue and green photoluminescence emissions at room temperature in barium zirconate powdersL. S. CavalcanteInstituto de Química, UNESP, P.O. Box 35514801-907, Araraquara, SPBRA1 aut.3 aut.9 aut.10 aut.Departamento de Química e Física, UFSCar, P.O. Box67613565-905, São Carlos, SPBRA1 aut.2 aut.3 aut.6 aut.J. C. SczancoskiDepartamento de Química e Física, UFSCar, P.O. Box67613565-905, São Carlos, SPBRA1 aut.2 aut.3 aut.6 aut.J. W. M. EspinosaInstituto de Química, UNESP, P.O. Box 35514801-907, Araraquara, SPBRA1 aut.3 aut.9 aut.10 aut.Departamento de Química e Física, UFSCar, P.O. Box67613565-905, São Carlos, SPBRA1 aut.2 aut.3 aut.6 aut.V. R. MastelaroInstituto de Física de São Carlos, USP, P.O. Box 36913560-970, São Carlos, SPBRA4 aut.7 aut.8 aut.A. MichalowiczUniversité Paris XII, Faculté des Sciences et Technologie Bâtiment Marie Curie (P2)-345b94010FRA5 aut.P. S. PizaniDepartamento de Química e Física, UFSCar, P.O. Box67613565-905, São Carlos, SPBRA1 aut.2 aut.3 aut.6 aut.F. S. De VicenteInstituto de Física de São Carlos, USP, P.O. Box 36913560-970, São Carlos, SPBRA4 aut.7 aut.8 aut.M. S. LiInstituto de Física de São Carlos, USP, P.O. Box 36913560-970, São Carlos, SPBRA4 aut.7 aut.8 aut.J. A. VarelaInstituto de Química, UNESP, P.O. Box 35514801-907, Araraquara, SPBRA1 aut.3 aut.9 aut.10 aut.E. LongeInstituto de Química, UNESP, P.O. Box 35514801-907, Araraquara, SPBRA1 aut.3 aut.9 aut.10 aut.09-02259112009PASCAL 09-0225911 INISTPascal:09-0225911001D670925-8388J. alloys compd.Journal of alloys and compoundsBarium ZirconatesBond lengthsChemical synthesisEXAFSEnergy levelsHeat treatmentsMicrostructurePhotoluminescenceUltraviolet radiationUltraviolet visible spectrumXANESXRDPhotoluminescenceDiffraction RXMicrostructureXANESEXAFSSpectre UV visibleTraitement thermiqueLongueur liaisonRayonnement UVNiveau énergieSynthèse chimiqueBaryum ZirconateBaZrO3
Intense blue and green photoluminescence (PL) emissions were observed at room temperature in barium zirconate (BaZrO3) powders prepared by chemical method. The powders were analyzed by X-ray diffraction (XRD), X-ray absorption near edge spectroscopy (XANES), extended X-ray absorption spectroscopy (EXAFS) and ultraviolet-visible (UV-vis) absorption spectroscopy. The XRD patterns indicated the presence of a secondary phase of BaCO3 in BaZrO3 powders heat treated at 773 K. K-edge XANES data revealed that Zr atoms presents in at least two Zr environments. EXAFS investigations showed strong bond length dispersion in the first coordination shell around Zr atoms. EXAFS analysis indicated that Zr atoms are coordinated by 6 oxygen in BaZrO3 powders heat treated at 973 K. UV-vis measurements suggested the presence of intermediary energy levels into the band gap of BaZrO3 powders heat treated at 773 K. The intense PL emission in BaZrO3 powders can be attributed to the two Zr environments or ZrO5-ZrO5 clusters.
0925-8388J. alloys compd.4711-2Intense blue and green photoluminescence emissions at room temperature in barium zirconate powdersCAVALCANTE (L. S.)SCZANCOSKI (J. C.)ESPINOSA (J. W. M.)MASTELARO (V. R.)MICHALOWICZ (A.)PIZANI (P. S.)DE VICENTE (F. S.)LI (M. S.)VARELA (J. A.)LONGE (E.)Instituto de Química, UNESP, P.O. Box 35514801-907, Araraquara, SPBRA1 aut.3 aut.9 aut.10 aut.Departamento de Química e Física, UFSCar, P.O. Box67613565-905, São Carlos, SPBRA1 aut.2 aut.3 aut.6 aut.Instituto de Física de São Carlos, USP, P.O. Box 36913560-970, São Carlos, SPBRA4 aut.7 aut.8 aut.Université Paris XII, Faculté des Sciences et Technologie Bâtiment Marie Curie (P2)-345b94010FRA5 aut.253-2582009ENGINIST11513540001849073106300000© 2009 INIST-CNRS. All rights reserved.49 ref.09-0225911PAJournal of alloys and compoundsCHEIntense blue and green photoluminescence (PL) emissions were observed at room temperature in barium zirconate (BaZrO3) powders prepared by chemical method. The powders were analyzed by X-ray diffraction (XRD), X-ray absorption near edge spectroscopy (XANES), extended X-ray absorption spectroscopy (EXAFS) and ultraviolet-visible (UV-vis) absorption spectroscopy. The XRD patterns indicated the presence of a secondary phase of BaCO3 in BaZrO3 powders heat treated at 773 K. K-edge XANES data revealed that Zr atoms presents in at least two Zr environments. EXAFS investigations showed strong bond length dispersion in the first coordination shell around Zr atoms. EXAFS analysis indicated that Zr atoms are coordinated by 6 oxygen in BaZrO3 powders heat treated at 973 K. UV-vis measurements suggested the presence of intermediary energy levels into the band gap of BaZrO3 powders heat treated at 773 K. The intense PL emission in BaZrO3 powders can be attributed to the two Zr environments or ZrO5-ZrO5 clusters.001B80A40G001B70H55HPhotoluminescence02Photoluminescence02Diffraction RX03XRD03Microstructure04Microstructure04XANES05XANES05EXAFS06EXAFS06Spectre UV visible07Ultraviolet visible spectrum07Espectro UV visible07Traitement thermique08Heat treatments08Longueur liaison09Bond lengths09Rayonnement UV10Ultraviolet radiation10Niveau énergie11Energy levels11Synthèse chimique13Chemical synthesis13Síntesis química13Baryum ZirconateNCNA15Barium ZirconatesNCNA15BaZrO3INC52166PASCAL 09-0225911 INISTIntense blue and green photoluminescence emissions at room temperature in barium zirconate powdersCAVALCANTE (L. S.); SCZANCOSKI (J. C.); ESPINOSA (J. W. M.); MASTELARO (V. R.); MICHALOWICZ (A.); PIZANI (P. S.); DE VICENTE (F. S.); LI (M. S.); VARELA (J. A.); LONGE (E.)Instituto de Química, UNESP, P.O. Box 355/14801-907, Araraquara, SP/Brésil (1 aut., 3 aut., 9 aut., 10 aut.); Departamento de Química e Física, UFSCar, P.O. Box676/13565-905, São Carlos, SP/Brésil (1 aut., 2 aut., 3 aut., 6 aut.); Instituto de Física de São Carlos, USP, P.O. Box 369/13560-970, São Carlos, SP/Brésil (4 aut., 7 aut., 8 aut.); Université Paris XII, Faculté des Sciences et Technologie Bâtiment Marie Curie (P2)-345b/94010/France (5 aut.)
Publication en série; Niveau analytique
Journal of alloys and compounds; ISSN 0925-8388; Suisse; Da. 2009; Vol. 471; No. 1-2; Pp. 253-258; Bibl. 49 ref.AnglaisIntense blue and green photoluminescence (PL) emissions were observed at room temperature in barium zirconate (BaZrO3) powders prepared by chemical method. The powders were analyzed by X-ray diffraction (XRD), X-ray absorption near edge spectroscopy (XANES), extended X-ray absorption spectroscopy (EXAFS) and ultraviolet-visible (UV-vis) absorption spectroscopy. The XRD patterns indicated the presence of a secondary phase of BaCO3 in BaZrO3 powders heat treated at 773 K. K-edge XANES data revealed that Zr atoms presents in at least two Zr environments. EXAFS investigations showed strong bond length dispersion in the first coordination shell around Zr atoms. EXAFS analysis indicated that Zr atoms are coordinated by 6 oxygen in BaZrO3 powders heat treated at 973 K. UV-vis measurements suggested the presence of intermediary energy levels into the band gap of BaZrO3 powders heat treated at 773 K. The intense PL emission in BaZrO3 powders can be attributed to the two Zr environments or ZrO5-ZrO5 clusters.001B80A40G; 001B70H55HPhotoluminescence; Diffraction RX; Microstructure; XANES; EXAFS; Spectre UV visible; Traitement thermique; Longueur liaison; Rayonnement UV; Niveau énergie; Synthèse chimique; Baryum Zirconate; BaZrO3Photoluminescence; XRD; Microstructure; XANES; EXAFS; Ultraviolet visible spectrum; Heat treatments; Bond lengths; Ultraviolet radiation; Energy levels; Chemical synthesis; Barium ZirconatesEspectro UV visible; Síntesis químicaINIST-1151.35400018490731063009-0225911
000C13 Contribution à l'explication de l'éclatement de certains éléments en béton soumis à une température élevéeMarcus V. G. De MoraisLaboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.Divisào de Engenharia Automotiva, Universidade de BrasiliaBrasiliaBRA1 aut.Prosper PliyaLaboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.Albert NoumoweLaboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.Anne-Lise BeaucourLaboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.Sophie OrtolaLaboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.09-02263972009PASCAL 09-0226397 INISTPascal:09-0226397001D661964-8189Eur. j. environ. civ. eng.European journal of environmental and civil engineeringBehaviorConcreteConstruction materialsElastoplasticityExperimental studyHigh temperatureHydraulicsModelingNumerical simulationScalingTemperature effectTemperature gradientThermal stressMatériau constructionBétonEffet températureHaute températureGradient températureContrainte thermiqueModélisationComportementHydrauliqueEcaillageElastoplasticitéEtude expérimentaleSimulation numérique
Cette étude porte sur le comportement du béton soumis à une température élevée. Elle vise à expliquer les phénomènes d'écaillage et d'éclatement observés sur certaines éprouvettes de béton lors d'études expérimentales. Les contraintes susceptibles de se développer lors du chauffage d'un élément en béton sont estimées numériquement et étudiées à l'aide du code de calcul CAST3M développé au CEA. Elles s'expriment en fonction des contraintes dues au gradient thermique et à la pression de vapeur d'eau, évaluées à l'aide de calculs thermohydriques préalables. Les contraintes mécaniques engendrées sont calculées selon deux hypothèses de comportement : l'élasticité linéaire isotrope et un comportement élastoplastique à deux seuils. Les simulations montrent que, lors du chauffage, le centre des éprouvettes cylindriques est sollicité en traction et leur surface en compression. Les contraintes engendrées atteignent leur valeur maximale à une température de surface avoisinant 300 °C. Les valeurs des contraintes de traction obtenues dépassent alors la résistance à la traction du béton.
1964-8189Eur. j. environ. civ. eng.131Contribution à l'explication de l'éclatement de certains éléments en béton soumis à une température élevéeDE MORAIS (Marcus V. G.)PLIYA (Prosper)NOUMOWE (Albert)BEAUCOUR (Anne-Lise)ORTOLA (Sophie)Laboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise95000 Cergy-PontoiseFRA1 aut.2 aut.3 aut.4 aut.5 aut.Divisào de Engenharia Automotiva, Universidade de BrasiliaBrasiliaBRA1 aut.71-902009FREengINIST266293540001863682000500000© 2009 INIST-CNRS. All rights reserved.1 p.1/209-0226397PAEuropean journal of environmental and civil engineeringFRAA contribution to the explanation of the spalling of concrete elements subjected to elevated temperatureCette étude porte sur le comportement du béton soumis à une température élevée. Elle vise à expliquer les phénomènes d'écaillage et d'éclatement observés sur certaines éprouvettes de béton lors d'études expérimentales. Les contraintes susceptibles de se développer lors du chauffage d'un élément en béton sont estimées numériquement et étudiées à l'aide du code de calcul CAST3M développé au CEA. Elles s'expriment en fonction des contraintes dues au gradient thermique et à la pression de vapeur d'eau, évaluées à l'aide de calculs thermohydriques préalables. Les contraintes mécaniques engendrées sont calculées selon deux hypothèses de comportement : l'élasticité linéaire isotrope et un comportement élastoplastique à deux seuils. Les simulations montrent que, lors du chauffage, le centre des éprouvettes cylindriques est sollicité en traction et leur surface en compression. Les contraintes engendrées atteignent leur valeur maximale à une température de surface avoisinant 300 °C. Les valeurs des contraintes de traction obtenues dépassent alors la résistance à la traction du béton.001D14G02E001D14E02001D14C03295Matériau construction01Construction materials01Material construcción01Béton02Concrete02Hormigón02Effet température03Temperature effect03Efecto temperatura03Haute température04High temperature04Alta temperatura04Gradient température05Temperature gradient05Gradiente temperatura05Contrainte thermique06Thermal stress06Tensión térmica06Modélisation07Modeling07Modelización07Comportement08Behavior08Conducta08Hydraulique09Hydraulics09Hidraúlica09Ecaillage10Scaling10Escamadura10Elastoplasticité12Elastoplasticity12Elastoplasticidad12Etude expérimentale13Experimental study13Estudio experimental13Simulation numérique14Numerical simulation14Simulación numérica14166PSIPSIPASCAL 09-0226397 INISTContribution à l'explication de l'éclatement de certains éléments en béton soumis à une température élevée(A contribution to the explanation of the spalling of concrete elements subjected to elevated temperature)DE MORAIS (Marcus V. G.); PLIYA (Prosper); NOUMOWE (Albert); BEAUCOUR (Anne-Lise); ORTOLA (Sophie)Laboratoire de Mécanique et Matériaux du Génie Civil (L2MGC) Université de Cergy-Pontoise/95000 Cergy-Pontoise/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Divisào de Engenharia Automotiva, Universidade de Brasilia/Brasilia/Brésil (1 aut.)
Publication en série; Niveau analytique
European journal of environmental and civil engineering; ISSN 1964-8189; France; Da. 2009; Vol. 13; No. 1; Pp. 71-90; Abs. anglais; Bibl. 1 p.1/2FrançaisCette étude porte sur le comportement du béton soumis à une température élevée. Elle vise à expliquer les phénomènes d'écaillage et d'éclatement observés sur certaines éprouvettes de béton lors d'études expérimentales. Les contraintes susceptibles de se développer lors du chauffage d'un élément en béton sont estimées numériquement et étudiées à l'aide du code de calcul CAST3M développé au CEA. Elles s'expriment en fonction des contraintes dues au gradient thermique et à la pression de vapeur d'eau, évaluées à l'aide de calculs thermohydriques préalables. Les contraintes mécaniques engendrées sont calculées selon deux hypothèses de comportement : l'élasticité linéaire isotrope et un comportement élastoplastique à deux seuils. Les simulations montrent que, lors du chauffage, le centre des éprouvettes cylindriques est sollicité en traction et leur surface en compression. Les contraintes engendrées atteignent leur valeur maximale à une température de surface avoisinant 300 °C. Les valeurs des contraintes de traction obtenues dépassent alors la résistance à la traction du béton.001D14G02E; 001D14E02; 001D14C03; 295Matériau construction; Béton; Effet température; Haute température; Gradient température; Contrainte thermique; Modélisation; Comportement; Hydraulique; Ecaillage; Elastoplasticité; Etude expérimentale; Simulation numériqueConstruction materials; Concrete; Temperature effect; High temperature; Temperature gradient; Thermal stress; Modeling; Behavior; Hydraulics; Scaling; Elastoplasticity; Experimental study; Numerical simulationMaterial construcción; Hormigón; Efecto temperatura; Alta temperatura; Gradiente temperatura; Tensión térmica; Modelización; Conducta; Hidraúlica; Escamadura; Elastoplasticidad; Estudio experimental; Simulación numéricaINIST-26629.35400018636820005009-0226397
000C14 Contraintes d'intégrité pour XML : Visite guidée par une syntaxe homogèneBéatrice BouchouUniversité François Rabelais de Tours -Campus Blois Laboratoire d'Informatique 3 Place Jean Jaurès41000 BloisFRA1 aut.2 aut.3 aut.Mirian Halfeld FerrariUniversité François Rabelais de Tours -Campus Blois Laboratoire d'Informatique 3 Place Jean Jaurès41000 BloisFRA1 aut.2 aut.3 aut.Maria Adriana LimaUniversité François Rabelais de Tours -Campus Blois Laboratoire d'Informatique 3 Place Jean Jaurès41000 BloisFRA1 aut.2 aut.3 aut.Pontifícia Universidade Católica de Minas Gerais -Poços de Caldas Av. Padre Francis Cletus Cox, 1661Cep: 37701-355 Jardim Country Club Poços de CaldasBRA3 aut.09-02270792009PASCAL 09-0227079 INISTPascal:09-0227079001D650752-4072TSI, Tech. sci. inform.TSI. Technique et science informatiquesClarifyingConstrained databaseConstraint integrityData integrityFunctional dependenceRelational databaseSemanticsXML languageLangage XMLBase de données relationnelleIntégrité donnéeDépendance fonctionnelleBase de données avec contrainteClarificationSémantiqueIntégrité contrainte
The XML format is used to represent real-world data, which must respect certain integrity constraints. These constraints are defined to ensure accuracy and consistency of data. Within the framework of relational databases, integrity constraints have been extensively studied and since the beginning of 2000 's, their XML equivalents are explored by several researches, which focused their attention on a type or another of constraint. This article aims to be a survey on XML integrity constraints by providing a homogeneous formalism and by clarifying the semantics of each type of constraint.
0752-4072TTSIDJTSI, Tech. sci. inform.283Contraintes d'intégrité pour XML : Visite guidée par une syntaxe homogèneBOUCHOU (Béatrice)HALFELD FERRARI (Mirian)ADRIANA LIMA (Maria)Université François Rabelais de Tours -Campus Blois Laboratoire d'Informatique 3 Place Jean Jaurès41000 BloisFRA1 aut.2 aut.3 aut.Pontifícia Universidade Católica de Minas Gerais -Poços de Caldas Av. Padre Francis Cletus Cox, 1661Cep: 37701-355 Jardim Country Club Poços de CaldasBRA3 aut.331-3642009FREengINIST195933540001867652900200000© 2009 INIST-CNRS. All rights reserved.3 p.09-0227079PATSI. Technique et science informatiquesFRAXML Integrity Constraints. An homogeneous syntax for a guided tour ofXICThe XML format is used to represent real-world data, which must respect certain integrity constraints. These constraints are defined to ensure accuracy and consistency of data. Within the framework of relational databases, integrity constraints have been extensively studied and since the beginning of 2000 's, their XML equivalents are explored by several researches, which focused their attention on a type or another of constraint. This article aims to be a survey on XML integrity constraints by providing a homogeneous formalism and by clarifying the semantics of each type of constraint.001D02B07DLangage XML06XML language06Lenguaje XML06Base de données relationnelle07Relational database07Base relacional dato07Intégrité donnée08Data integrity08Dépendance fonctionnelle09Functional dependence09Dependencia funcional09Base de données avec contrainte18Constrained database18Base dato forzada18Clarification19Clarifying19Clarificación19Sémantique20Semantics20Semántica20Intégrité contrainte23Constraint integrity23Integridad constreñimiento23166OTOOTOPASCAL 09-0227079 INISTContraintes d'intégrité pour XML : Visite guidée par une syntaxe homogène(XML Integrity Constraints. An homogeneous syntax for a guided tour ofXIC)BOUCHOU (Béatrice); HALFELD FERRARI (Mirian); ADRIANA LIMA (Maria)Université François Rabelais de Tours -Campus Blois Laboratoire d'Informatique 3 Place Jean Jaurès/41000 Blois/France (1 aut., 2 aut., 3 aut.); Pontifícia Universidade Católica de Minas Gerais -Poços de Caldas Av. Padre Francis Cletus Cox, 1661/Cep: 37701-355 Jardim Country Club Poços de Caldas/Brésil (3 aut.)
Publication en série; Niveau analytique
TSI. Technique et science informatiques; ISSN 0752-4072; Coden TTSIDJ; France; Da. 2009; Vol. 28; No. 3; Pp. 331-364; Abs. anglais; Bibl. 3 p.FrançaisThe XML format is used to represent real-world data, which must respect certain integrity constraints. These constraints are defined to ensure accuracy and consistency of data. Within the framework of relational databases, integrity constraints have been extensively studied and since the beginning of 2000 's, their XML equivalents are explored by several researches, which focused their attention on a type or another of constraint. This article aims to be a survey on XML integrity constraints by providing a homogeneous formalism and by clarifying the semantics of each type of constraint.001D02B07DLangage XML; Base de données relationnelle; Intégrité donnée; Dépendance fonctionnelle; Base de données avec contrainte; Clarification; Sémantique; Intégrité contrainteXML language; Relational database; Data integrity; Functional dependence; Constrained database; Clarifying; Semantics; Constraint integrityLenguaje XML; Base relacional dato; Dependencia funcional; Base dato forzada; Clarificación; Semántica; Integridad constreñimientoINIST-19593.35400018676529002009-0227079
000C15 Noncommutative reading of the complex plane through Delone sequencesS. Twareque AliDepartment of Mathematics and Statistics, Concordia UniversityMontréal, Québec H3G IM8CAN1 aut.Lubka BalkovaLaboratoire APC, Université Paris Diderot, 10, rue A. Domon et L. Duquet75205 ParisFRA2 aut.4 aut.E. M. F. CuradoCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud 15022290-180 Rio de JaneiroBRA3 aut.5 aut.6 aut.J. P. GazeauLaboratoire APC, Université Paris Diderot, 10, rue A. Domon et L. Duquet75205 ParisFRA2 aut.4 aut.M. A. Rego-MonteiroCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud 15022290-180 Rio de JaneiroBRA3 aut.5 aut.6 aut.Ligia M. C. S. RodriguesCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud 15022290-180 Rio de JaneiroBRA3 aut.5 aut.6 aut.K. SekimotoLaboratoire MSC&ESPCI, Université Paris Diderot, 10, rue A. Domon et L. Duquet75205 ParisFRA7 aut.09-02272292009PASCAL 09-0227229 INISTPascal:09-0227229001D640022-2488J. math. phys.Journal of mathematical physicsComplex domainMathematical physicsDomaine complexePhysique mathématique0022-2488JMAPAQJ. math. phys.504Noncommutative reading of the complex plane through Delone sequencesTWAREQUE ALI (S.)BALKOVA (Lubka)CURADO (E. M. F.)GAZEAU (J. P.)REGO-MONTEIRO (M. A.)RODRIGUES (Ligia M. C. S.)SEKIMOTO (K.)Department of Mathematics and Statistics, Concordia UniversityMontréal, Québec H3G IM8CAN1 aut.Laboratoire APC, Université Paris Diderot, 10, rue A. Domon et L. Duquet75205 ParisFRA2 aut.4 aut.Centro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud 15022290-180 Rio de JaneiroBRA3 aut.5 aut.6 aut.Laboratoire MSC&ESPCI, Université Paris Diderot, 10, rue A. Domon et L. Duquet75205 ParisFRA7 aut.042517.1-042517.282009ENGINIST29423540001878649204300000© 2009 INIST-CNRS. All rights reserved.26 ref.09-0227229PAJournal of mathematical physicsUSA001A02001B00BDomaine complexe26Complex domain26Physique mathématique27Mathematical physics27Física matemática27166OTOOTOPASCAL 09-0227229 INISTNoncommutative reading of the complex plane through Delone sequencesTWAREQUE ALI (S.); BALKOVA (Lubka); CURADO (E. M. F.); GAZEAU (J. P.); REGO-MONTEIRO (M. A.); RODRIGUES (Ligia M. C. S.); SEKIMOTO (K.)Department of Mathematics and Statistics, Concordia University/Montréal, Québec H3G IM8/Canada (1 aut.); Laboratoire APC, Université Paris Diderot, 10, rue A. Domon et L. Duquet/75205 Paris/France (2 aut., 4 aut.); Centro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud 150/22290-180 Rio de Janeiro/Brésil (3 aut., 5 aut., 6 aut.); Laboratoire MSC&ESPCI, Université Paris Diderot, 10, rue A. Domon et L. Duquet/75205 Paris/France (7 aut.)
Publication en série; Niveau analytique
Journal of mathematical physics; ISSN 0022-2488; Coden JMAPAQ; Etats-Unis; Da. 2009; Vol. 50; No. 4; 042517.1-042517.28; Bibl. 26 ref.Anglais001A02; 001B00BDomaine complexe; Physique mathématiqueComplex domain; Mathematical physicsFísica matemáticaINIST-2942.35400018786492043009-0227229
000C16 Life history comparison of two terrestrial isopods in relation to habitat specializationAline Ferreira QuadrosPrograma de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Uniuersidade Federal do Rio Grande do SulBRA1 aut.3 aut.Yves CaubetUniversité de Poitiers, Laboratoire de Biologie et Génétique des Populations de Crustacés, UFR Sciences Fondamentales & AppliquéesPoitiersFRA2 aut.CNRS, UMR 6556 LGBPCPoitiersFRA2 aut.Paula Beatriz AraujoPrograma de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Uniuersidade Federal do Rio Grande do SulBRA1 aut.3 aut.09-02281572009PASCAL 09-0228157 INISTPascal:09-0228157001D631146-609XActa oecol. : (Montrouge)Acta oecologica : (Montrouge)Atlantic FaçadeForestsGeographic distributionHabitatLife historyLife tableNeotropical RegionReproductionSpecializationTerrestrial environmentTropical zoneCycle évolutifMilieu terrestreHabitatSpécialisationZone tropicaleRégion NéotropicaleForêtTable mortalitéReproductionRépartition géographiqueFaçade atlantique
For many animal species, there is a relationship between life history strategies, as predicted by the r-K-selection theory, degree of habitat specialization and response to habitat alteration and loss. Here we compare two sympatric woodlice species with contrasting patterns of habitat use and geographical distribution. We predict that Atlantoscia floridana (Philosciidae), considered a habitat generalist, would exhibit the r-selected traits, whereas Balloniscus glaber (Balloniscidae), considered a habitat specialist, should have the K-selected traits. We analyzed several life history traits as well as life and fecundity tables using 715 and 842 females of A. floridana and B. glaber, respectively, from populations living in syntopy in southern Brazil. As predicted, most evaluated traits allow A. floridana to be considered an r-strategist and B. glaber a K-strategist: A. floridana showed a shorter lifetime, faster development, earlier reproduction, a smaller parental investment, higher net reproductive rate (R0), a higher growth rate (r) and a shorter generation time (T) in comparison to B. glaber. A. floridana seems to be a successful colonizer with a high reproductive output. These characteristics explain its local abundance, commonness and wide geographical distribution. On the contrary, B. glaber has a restricted geographical distribution that is mainly associated with Atlantic forest fragments, a biome threatened by deforestation and replacement by monocultures. Its narrow distribution combined with the K-selected traits may confer to this species an increased extinction risk.
1146-609XActa oecol. : (Montrouge)352Life history comparison of two terrestrial isopods in relation to habitat specializationFERREIRA QUADROS (Aline)CAUBET (Yves)ARAUJO (Paula Beatriz)Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Uniuersidade Federal do Rio Grande do SulBRA1 aut.3 aut.Université de Poitiers, Laboratoire de Biologie et Génétique des Populations de Crustacés, UFR Sciences Fondamentales & AppliquéesPoitiersFRA2 aut.CNRS, UMR 6556 LGBPCPoitiersFRA2 aut.243-2492009ENGINIST129043540001848376901100000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0228157PAActa oecologica : (Montrouge)FRAFor many animal species, there is a relationship between life history strategies, as predicted by the r-K-selection theory, degree of habitat specialization and response to habitat alteration and loss. Here we compare two sympatric woodlice species with contrasting patterns of habitat use and geographical distribution. We predict that Atlantoscia floridana (Philosciidae), considered a habitat generalist, would exhibit the r-selected traits, whereas Balloniscus glaber (Balloniscidae), considered a habitat specialist, should have the K-selected traits. We analyzed several life history traits as well as life and fecundity tables using 715 and 842 females of A. floridana and B. glaber, respectively, from populations living in syntopy in southern Brazil. As predicted, most evaluated traits allow A. floridana to be considered an r-strategist and B. glaber a K-strategist: A. floridana showed a shorter lifetime, faster development, earlier reproduction, a smaller parental investment, higher net reproductive rate (R0), a higher growth rate (r) and a shorter generation time (T) in comparison to B. glaber. A. floridana seems to be a successful colonizer with a high reproductive output. These characteristics explain its local abundance, commonness and wide geographical distribution. On the contrary, B. glaber has a restricted geographical distribution that is mainly associated with Atlantic forest fragments, a biome threatened by deforestation and replacement by monocultures. Its narrow distribution combined with the K-selected traits may confer to this species an increased extinction risk.002A14B01002A14B04BCycle évolutif01Life history01Ciclo evolutivo01Milieu terrestre02Terrestrial environment02Medio terrestre02Habitat03Habitat03Habitat03Spécialisation04Specialization04Especialización04Zone tropicale05Tropical zone05Zona tropical05Région Néotropicale06Neotropical Region06Región Néotropical06Forêt07Forests07Bosque07Table mortalité08Life table08Tabla mortalidad08Reproduction09Reproduction09Reproducción09Répartition géographique23Geographic distribution23Distribución geográfica23Façade atlantiqueCD96Atlantic FaçadeCD96Fachada atlánticaCD96Zone climatique17Climatic zone17Zona climática17Biogéographie18Biogeography18Biogeografía18166OTOOTOPASCAL 09-0228157 INISTLife history comparison of two terrestrial isopods in relation to habitat specializationFERREIRA QUADROS (Aline); CAUBET (Yves); ARAUJO (Paula Beatriz)Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Uniuersidade Federal do Rio Grande do Sul/Brésil (1 aut., 3 aut.); Université de Poitiers, Laboratoire de Biologie et Génétique des Populations de Crustacés, UFR Sciences Fondamentales & Appliquées/Poitiers/France (2 aut.); CNRS, UMR 6556 LGBPC/Poitiers/France (2 aut.)
Publication en série; Niveau analytique
Acta oecologica : (Montrouge); ISSN 1146-609X; France; Da. 2009; Vol. 35; No. 2; Pp. 243-249; Bibl. 3/4 p.AnglaisFor many animal species, there is a relationship between life history strategies, as predicted by the r-K-selection theory, degree of habitat specialization and response to habitat alteration and loss. Here we compare two sympatric woodlice species with contrasting patterns of habitat use and geographical distribution. We predict that Atlantoscia floridana (Philosciidae), considered a habitat generalist, would exhibit the r-selected traits, whereas Balloniscus glaber (Balloniscidae), considered a habitat specialist, should have the K-selected traits. We analyzed several life history traits as well as life and fecundity tables using 715 and 842 females of A. floridana and B. glaber, respectively, from populations living in syntopy in southern Brazil. As predicted, most evaluated traits allow A. floridana to be considered an r-strategist and B. glaber a K-strategist: A. floridana showed a shorter lifetime, faster development, earlier reproduction, a smaller parental investment, higher net reproductive rate (R0), a higher growth rate (r) and a shorter generation time (T) in comparison to B. glaber. A. floridana seems to be a successful colonizer with a high reproductive output. These characteristics explain its local abundance, commonness and wide geographical distribution. On the contrary, B. glaber has a restricted geographical distribution that is mainly associated with Atlantic forest fragments, a biome threatened by deforestation and replacement by monocultures. Its narrow distribution combined with the K-selected traits may confer to this species an increased extinction risk.002A14B01; 002A14B04BCycle évolutif; Milieu terrestre; Habitat; Spécialisation; Zone tropicale; Région Néotropicale; Forêt; Table mortalité; Reproduction; Répartition géographique; Façade atlantiqueZone climatique; BiogéographieLife history; Terrestrial environment; Habitat; Specialization; Tropical zone; Neotropical Region; Forests; Life table; Reproduction; Geographic distribution; Atlantic FaçadeClimatic zone; BiogeographyCiclo evolutivo; Medio terrestre; Habitat; Especialización; Zona tropical; Región Néotropical; Bosque; Tabla mortalidad; Reproducción; Distribución geográfica; Fachada atlánticaINIST-12904.35400018483769011009-0228157
000C17 Crime and punishment : the economic burden of impunityM. B. GordonLaboratoire TIMC-IMAG (UMR 5525), University of Grenoble I, Domaine de La Merci, Jean Roget38706 La TroncheFRA1 aut.3 aut.J. R. IglesiasInstituto de Física and Faculdade de Ciências Económicas, Universidade Federal do Rio Grande do Sul91501-970 Porto AlegreBRA2 aut.V. SemeshenkoLaboratoire TIMC-IMAG (UMR 5525), University of Grenoble I, Domaine de La Merci, Jean Roget38706 La TroncheFRA1 aut.3 aut.J. P. NadalLaboratoire de Physique Statistique (UMR8550), École Normale Supérieure, 24, rue Lhomond75231 ParisFRA4 aut.Centre d'Analyse et de Mathématique Sociales (CAMS) (UMR8557) École des Hautes Études en Sciences Sociales, 54, Bd. Raspail75270 ParisFRA4 aut.09-02286452009PASCAL 09-0228645 INISTPascal:09-0228645001D621434-6028Eur. phys. j., B Cond. matter phys.The European physical journal. B, Condensed matter physicsCostCrimeMathematical modelsProbabilityPunishmentModèle mathématiqueCriminalitéPunitionCoûtProbabilité
Crime is an economically relevant activity. It may represent a mechanism of wealth distribution but also a social and economic burden because of the interference with regular legal activities and the cost of the law enforcement system. Sometimes it may be less costly for the society to allow for some level of criminality. However, a drawback of such a policy is that it may lead to a high increase of criminal activity, that may become hard to reduce later on. Here we investigate the level of law enforcement required to keep crime within acceptable limits. A sharp phase transition is observed as a function of the probability of punishment. We also analyze other consequences of criminality as the growth of the economy, the inequality in the wealth distribution (the Gini coefficient) and other relevant quantities under different scenarios of criminal activity and probabilities of apprehension.
1434-6028Eur. phys. j., B Cond. matter phys.681Crime and punishment : the economic burden of impunityGORDON (M. B.)IGLESIAS (J. R.)SEMESHENKO (V.)NADAL (J. P.)Laboratoire TIMC-IMAG (UMR 5525), University of Grenoble I, Domaine de La Merci, Jean Roget38706 La TroncheFRA1 aut.3 aut.Instituto de Física and Faculdade de Ciências Económicas, Universidade Federal do Rio Grande do Sul91501-970 Porto AlegreBRA2 aut.Laboratoire de Physique Statistique (UMR8550), École Normale Supérieure, 24, rue Lhomond75231 ParisFRA4 aut.Centre d'Analyse et de Mathématique Sociales (CAMS) (UMR8557) École des Hautes Études en Sciences Sociales, 54, Bd. Raspail75270 ParisFRA4 aut.133-1442009ENGINIST266883540001873842801400000© 2009 INIST-CNRS. All rights reserved.25 ref.09-0228645PAThe European physical journal. B, Condensed matter physicsFRACrime is an economically relevant activity. It may represent a mechanism of wealth distribution but also a social and economic burden because of the interference with regular legal activities and the cost of the law enforcement system. Sometimes it may be less costly for the society to allow for some level of criminality. However, a drawback of such a policy is that it may lead to a high increase of criminal activity, that may become hard to reduce later on. Here we investigate the level of law enforcement required to keep crime within acceptable limits. A sharp phase transition is observed as a function of the probability of punishment. We also analyze other consequences of criminality as the growth of the economy, the inequality in the wealth distribution (the Gini coefficient) and other relevant quantities under different scenarios of criminal activity and probabilities of apprehension.001B00B50Modèle mathématique02Mathematical models02Criminalité11Crime11Punition12Punishment12Castigo12Coût13Cost13Probabilité14Probability14166PASCAL 09-0228645 INISTCrime and punishment : the economic burden of impunityGORDON (M. B.); IGLESIAS (J. R.); SEMESHENKO (V.); NADAL (J. P.)Laboratoire TIMC-IMAG (UMR 5525), University of Grenoble I, Domaine de La Merci, Jean Roget/38706 La Tronche/France (1 aut., 3 aut.); Instituto de Física and Faculdade de Ciências Económicas, Universidade Federal do Rio Grande do Sul/91501-970 Porto Alegre/Brésil (2 aut.); Laboratoire de Physique Statistique (UMR8550), École Normale Supérieure, 24, rue Lhomond/75231 Paris/France (4 aut.); Centre d'Analyse et de Mathématique Sociales (CAMS) (UMR8557) École des Hautes Études en Sciences Sociales, 54, Bd. Raspail/75270 Paris/France (4 aut.)
Publication en série; Niveau analytique
The European physical journal. B, Condensed matter physics; ISSN 1434-6028; France; Da. 2009; Vol. 68; No. 1; Pp. 133-144; Bibl. 25 ref.AnglaisCrime is an economically relevant activity. It may represent a mechanism of wealth distribution but also a social and economic burden because of the interference with regular legal activities and the cost of the law enforcement system. Sometimes it may be less costly for the society to allow for some level of criminality. However, a drawback of such a policy is that it may lead to a high increase of criminal activity, that may become hard to reduce later on. Here we investigate the level of law enforcement required to keep crime within acceptable limits. A sharp phase transition is observed as a function of the probability of punishment. We also analyze other consequences of criminality as the growth of the economy, the inequality in the wealth distribution (the Gini coefficient) and other relevant quantities under different scenarios of criminal activity and probabilities of apprehension.001B00B50Modèle mathématique; Criminalité; Punition; Coût; ProbabilitéMathematical models; Crime; Punishment; Cost; ProbabilityCastigoINIST-26688.35400018738428014009-0228645
000C18 5-Fluorouracil and its active metabolite FdUMP cause DNA damage in human SW620 colon adenocarcinoma cell lineRenata MatuoDepartamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA1 aut.2 aut.7 aut.9 aut.Fabricio Garmus SousaDepartamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA1 aut.2 aut.7 aut.9 aut.Alexandre E. EscargueilLaboratory of Cancer Biology and Therapeutics Centre de Recherche Saint-AntoineFRA3 aut.8 aut.Institut National de la Santé et de la Recherche Médicale U893FRA3 aut.8 aut.Université Pierre et Marie Curie, UMPC06FRA3 aut.8 aut.Instituto de Biotecnologia/Departamento de Ciências Biomédicas Universidade de Caxias do Sul, UCS Caxias do SulRSBRA3 aut.9 aut.Ivana GrivicichLaboratório de Marcadores de Estresse Celular/Centro Pesquisas em Ciências Médicas Universidade Luterana do BrasilUlbra Canoas, RSBRA4 aut.Daniel Garcia-SantosLaboratório de Imunogenética/Departamento de Genética Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA5 aut.6 aut.José Artur Bogo ChiesLaboratório de Imunogenética/Departamento de Genética Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA5 aut.6 aut.Jenifer SaffiDepartamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA1 aut.2 aut.7 aut.9 aut.Laboratório de Genética Toxicológica Universidade Luterana BrasileiraUlbra Canoas, RSBRA7 aut.9 aut.Annette K. LarsenLaboratory of Cancer Biology and Therapeutics Centre de Recherche Saint-AntoineFRA3 aut.8 aut.Institut National de la Santé et de la Recherche Médicale U893FRA3 aut.8 aut.Université Pierre et Marie Curie, UMPC06FRA3 aut.8 aut.Joao Antonio Pegas HenriquesDepartamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA1 aut.2 aut.7 aut.9 aut.Instituto de Biotecnologia/Departamento de Ciências Biomédicas Universidade de Caxias do Sul, UCS Caxias do SulRSBRA3 aut.9 aut.Laboratório de Genética Toxicológica Universidade Luterana BrasileiraUlbra Canoas, RSBRA7 aut.9 aut.09-02324472009PASCAL 09-0232447 INISTPascal:09-0232447001D610260-437XJ. appl. toxicol.Journal of applied toxicologyAntineoplastic agentApoptosisCell cycleCell deathCell lineColon adenocarcinomaColon cancerCytotoxicityDNAEstablished cell lineFluorouracilGenotoxicityHumanIn vitroLesionMetaboliteFluorouracilMétaboliteLésionHommeLignée cellulaireLignée cellulaire établieIn vitroAdénocarcinome du côlonCytotoxicitéGénotoxicitéCancer du côlonDNACycle cellulaireApoptoseMort cellulaireAnticancéreux
5-Fluorouracil (5-FU) is an antineoplasic drug widely used to treat cancer. Its cytotoxic effect has been principally ascribed to the misincorporation of fluoronucleotides into DNA and RNA during their synthesis, and the inhibition of thymidylate synthase (TS) by FdUMP (one of the 5-FU active metabolites), which leads to nucleotide pool imbalance. In the present study, we compared the ability of 5-FU and FdUMP to induce apoptosis and to influence the cell cycle progression in human colon SW620 adenocarcinoma cells in regards to their genotoxic and clastogenic activities. Our study demonstrates that 5-FU induces SSB, DSB and apoptosis earlier than FdUMP. Interestingly, while both drugs are able to induce apoptosis, their effect on the cell cycle progression differed. Indeed, 5-FU induces an arrest in G1/S while FdUMP causes an arrest in G2/ M. Independently of the temporal difference in strand breaks and apoptosis induction, as well as the differential cell cycle modulation, both drugs presented similar clastogenic effects. The different pattern of cell cycle arrest suggests that the two drugs induce different types of primary DNA lesions that could lead to the activation of different checkpoints and recruit different DNA repair pathways.
0260-437XJJATDKJ. appl. toxicol.2945-Fluorouracil and its active metabolite FdUMP cause DNA damage in human SW620 colon adenocarcinoma cell lineMATUO (Renata)GARMUS SOUSA (Fabricio)ESCARGUEIL (Alexandre E.)GRIVICICH (Ivana)GARCIA-SANTOS (Daniel)BOGO CHIES (José Artur)SAFFI (Jenifer)LARSEN (Annette K.)PEGAS HENRIQUES (Joao Antonio)Departamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA1 aut.2 aut.7 aut.9 aut.Laboratory of Cancer Biology and Therapeutics Centre de Recherche Saint-AntoineFRA3 aut.8 aut.Institut National de la Santé et de la Recherche Médicale U893FRA3 aut.8 aut.Université Pierre et Marie Curie, UMPC06FRA3 aut.8 aut.Instituto de Biotecnologia/Departamento de Ciências Biomédicas Universidade de Caxias do Sul, UCS Caxias do SulRSBRA3 aut.9 aut.Laboratório de Marcadores de Estresse Celular/Centro Pesquisas em Ciências Médicas Universidade Luterana do BrasilUlbra Canoas, RSBRA4 aut.Laboratório de Imunogenética/Departamento de Genética Universidade Federal do Rio Grande do Sul, UFRGS Porto AlegreRSBRA5 aut.6 aut.Laboratório de Genética Toxicológica Universidade Luterana BrasileiraUlbra Canoas, RSBRA7 aut.9 aut.308-3162009ENGINIST192983540001861725900500000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0232447PAJournal of applied toxicologyGBR5-Fluorouracil (5-FU) is an antineoplasic drug widely used to treat cancer. Its cytotoxic effect has been principally ascribed to the misincorporation of fluoronucleotides into DNA and RNA during their synthesis, and the inhibition of thymidylate synthase (TS) by FdUMP (one of the 5-FU active metabolites), which leads to nucleotide pool imbalance. In the present study, we compared the ability of 5-FU and FdUMP to induce apoptosis and to influence the cell cycle progression in human colon SW620 adenocarcinoma cells in regards to their genotoxic and clastogenic activities. Our study demonstrates that 5-FU induces SSB, DSB and apoptosis earlier than FdUMP. Interestingly, while both drugs are able to induce apoptosis, their effect on the cell cycle progression differed. Indeed, 5-FU induces an arrest in G1/S while FdUMP causes an arrest in G2/ M. Independently of the temporal difference in strand breaks and apoptosis induction, as well as the differential cell cycle modulation, both drugs presented similar clastogenic effects. The different pattern of cell cycle arrest suggests that the two drugs induce different types of primary DNA lesions that could lead to the activation of different checkpoints and recruit different DNA repair pathways.002B03002B13B01FluorouracilNKFR01FluorouracilNKFR01FluorouraciloNKFR01Métabolite02Metabolite02Metabolito02Lésion03Lesion03Lesión03Homme05Human05Hombre05Lignée cellulaire06Cell line06Línea celular06Lignée cellulaire établie08Established cell line08Línea celular establecida08In vitro09In vitro09In vitro09Adénocarcinome du côlonNM10Colon adenocarcinomaNM10Adenocarcinoma de colónNM10Cytotoxicité11Cytotoxicity11Citotoxicidad11Génotoxicité12Genotoxicity12Genotoxicidad12Cancer du côlonNM13Colon cancerNM13Cáncer del colonNM13DNA17DNA17DNA17Cycle cellulaire18Cell cycle18Ciclo celular18Apoptose19Apoptosis19Apoptosis19Mort cellulaire20Cell death20Muerte celular20Anticancéreux21Antineoplastic agent21Anticanceroso21ToxicitéToxicityToxicidadAntimétabolite61Antimetabolic61Antimetabólito61Dérivé de la fluoropyrimidine62Fluoropyrimidine derivatives62Fluoropirimidina derivado62Inhibiteur enzyme63Enzyme inhibitor63Inhibidor enzima63Dérivé de la pyrimidine64Pyrimidine derivatives64Pirimidina derivado64Thymidylate synthaseFE65Thymidylate synthaseFE65Thymidylate synthaseFE65MethyltransferasesFEMethyltransferasesFEMethyltransferasesFETransferasesFETransferasesFETransferasesFEEnzymeFEEnzymeFEEnzimaFEPathologie de l'appareil digestif66Digestive diseases66Aparato digestivo patología66Pathologie du côlon67Colonic disease67Colón patología67Pathologie de l'intestin68Intestinal disease68Intestino patología68Tumeur maligneNM69Malignant tumorNM69Tumor malignoNM69CancerNMCancerNMCáncerNM173OTOOTOPASCAL 09-0232447 INIST5-Fluorouracil and its active metabolite FdUMP cause DNA damage in human SW620 colon adenocarcinoma cell lineMATUO (Renata); GARMUS SOUSA (Fabricio); ESCARGUEIL (Alexandre E.); GRIVICICH (Ivana); GARCIA-SANTOS (Daniel); BOGO CHIES (José Artur); SAFFI (Jenifer); LARSEN (Annette K.); PEGAS HENRIQUES (Joao Antonio)Departamento de Biofísica/Centro de Biotecnologia Universidade Federal do Rio Grande do Sul, UFRGS Porto Alegre/RS/Brésil (1 aut., 2 aut., 7 aut., 9 aut.); Laboratory of Cancer Biology and Therapeutics Centre de Recherche Saint-Antoine/France (3 aut., 8 aut.); Institut National de la Santé et de la Recherche Médicale U893/France (3 aut., 8 aut.); Université Pierre et Marie Curie, UMPC06/France (3 aut., 8 aut.); Instituto de Biotecnologia/Departamento de Ciências Biomédicas Universidade de Caxias do Sul, UCS Caxias do Sul/RS/Brésil (3 aut., 9 aut.); Laboratório de Marcadores de Estresse Celular/Centro Pesquisas em Ciências Médicas Universidade Luterana do Brasil/Ulbra Canoas, RS/Brésil (4 aut.); Laboratório de Imunogenética/Departamento de Genética Universidade Federal do Rio Grande do Sul, UFRGS Porto Alegre/RS/Brésil (5 aut., 6 aut.); Laboratório de Genética Toxicológica Universidade Luterana Brasileira/Ulbra Canoas, RS/Brésil (7 aut., 9 aut.)
Publication en série; Niveau analytique
Journal of applied toxicology; ISSN 0260-437X; Coden JJATDK; Royaume-Uni; Da. 2009; Vol. 29; No. 4; Pp. 308-316; Bibl. 3/4 p.Anglais5-Fluorouracil (5-FU) is an antineoplasic drug widely used to treat cancer. Its cytotoxic effect has been principally ascribed to the misincorporation of fluoronucleotides into DNA and RNA during their synthesis, and the inhibition of thymidylate synthase (TS) by FdUMP (one of the 5-FU active metabolites), which leads to nucleotide pool imbalance. In the present study, we compared the ability of 5-FU and FdUMP to induce apoptosis and to influence the cell cycle progression in human colon SW620 adenocarcinoma cells in regards to their genotoxic and clastogenic activities. Our study demonstrates that 5-FU induces SSB, DSB and apoptosis earlier than FdUMP. Interestingly, while both drugs are able to induce apoptosis, their effect on the cell cycle progression differed. Indeed, 5-FU induces an arrest in G1/S while FdUMP causes an arrest in G2/ M. Independently of the temporal difference in strand breaks and apoptosis induction, as well as the differential cell cycle modulation, both drugs presented similar clastogenic effects. The different pattern of cell cycle arrest suggests that the two drugs induce different types of primary DNA lesions that could lead to the activation of different checkpoints and recruit different DNA repair pathways.002B03; 002B13B01Fluorouracil; Métabolite; Lésion; Homme; Lignée cellulaire; Lignée cellulaire établie; In vitro; Adénocarcinome du côlon; Cytotoxicité; Génotoxicité; Cancer du côlon; DNA; Cycle cellulaire; Apoptose; Mort cellulaire; AnticancéreuxToxicité; Antimétabolite; Dérivé de la fluoropyrimidine; Inhibiteur enzyme; Dérivé de la pyrimidine; Thymidylate synthase; Methyltransferases; Transferases; Enzyme; Pathologie de l'appareil digestif; Pathologie du côlon; Pathologie de l'intestin; Tumeur maligne; CancerFluorouracil; Metabolite; Lesion; Human; Cell line; Established cell line; In vitro; Colon adenocarcinoma; Cytotoxicity; Genotoxicity; Colon cancer; DNA; Cell cycle; Apoptosis; Cell death; Antineoplastic agentToxicity; Antimetabolic; Fluoropyrimidine derivatives; Enzyme inhibitor; Pyrimidine derivatives; Thymidylate synthase; Methyltransferases; Transferases; Enzyme; Digestive diseases; Colonic disease; Intestinal disease; Malignant tumor; CancerFluorouracilo; Metabolito; Lesión; Hombre; Línea celular; Línea celular establecida; In vitro; Adenocarcinoma de colón; Citotoxicidad; Genotoxicidad; Cáncer del colon; DNA; Ciclo celular; Apoptosis; Muerte celular; AnticancerosoINIST-19298.35400018617259005009-0232447
000C19 Genomics of growth traits in forest treesDario GrattapagliaEMBRAPA Genetic Resources and Biotechnology, CP 2372Brasília 70770-970 DFBRA1 aut.Graduate Program in Genomic Sciences and Biotechnology, Universidade Católica de Brasília -SGAN 916 módulo BBrasília 70790-160 DFBRA1 aut.Christophe PlomionINRA, UMR 1202, 69 Route d'Arcachon33612 CestasFRA2 aut.Matias KirstSchool of Forest Resources and Conservation, Graduate Program in Plant Molecular and Cellular Biology, and University of Florida Genetics Institute, University of Florida, PO Box 110410Gainesville, FL 32611USA3 aut.Ronald R. SederoffDepartment of Forestry and Environmental Resources, North Carolina State University Campus Box 7247Raleigh, NC 27695-7247USA4 aut.09-02329392009PASCAL 09-0232939 INISTPascal:09-0232939001D601369-5266Curr. opin. plant biol.Current opinion in plant biologyForest treeGenomicsGrowthPlant biologyReviewGénomiqueCroissanceArticle synthèseBiologie végétaleArbre forestier
Growth traits in trees are fundamental components of adaptation in a forest ecosystem and of productivity in planted forests. A number of processes determine tree growth, which are controlled by genetic and epigenetic factors that respond dynamically to environmental signals throughout centuries. Advances in genomics have allowed an increased comprehension of the complex mechanisms of tree growth and adaptation. Yet, the application of genomics to improving forest productivity and sustainability still entails capturing a large proportion of the total genetic variation controlling the component traits. Nonetheless, genetics and genomics are unifying disciplines that will serve well to dissect the variables and mechanisms of tree growth and development.
1369-5266Curr. opin. plant biol.122Genomics of growth traits in forest treesGenome studies and molecular geneticsGRATTAPAGLIA (Dario)PLOMION (Christophe)KIRST (Matias)SEDEROFF (Ronald R.)YANO (Masahiro)ed.TUBEROSA (Roberto)ed.EMBRAPA Genetic Resources and Biotechnology, CP 2372Brasília 70770-970 DFBRA1 aut.Graduate Program in Genomic Sciences and Biotechnology, Universidade Católica de Brasília -SGAN 916 módulo BBrasília 70790-160 DFBRA1 aut.INRA, UMR 1202, 69 Route d'Arcachon33612 CestasFRA2 aut.School of Forest Resources and Conservation, Graduate Program in Plant Molecular and Cellular Biology, and University of Florida Genetics Institute, University of Florida, PO Box 110410Gainesville, FL 32611USA3 aut.Department of Forestry and Environmental Resources, North Carolina State University Campus Box 7247Raleigh, NC 27695-7247USA4 aut.QTL Genomics Research Centre National Institute of Agrobiological SciencesTsukuba, IbarakiJPN1 aut.2 aut.148-1562009ENGINIST267583540001868373100600000© 2009 INIST-CNRS. All rights reserved.85 ref.09-0232939PACurrent opinion in plant biologyGBRGrowth traits in trees are fundamental components of adaptation in a forest ecosystem and of productivity in planted forests. A number of processes determine tree growth, which are controlled by genetic and epigenetic factors that respond dynamically to environmental signals throughout centuries. Advances in genomics have allowed an increased comprehension of the complex mechanisms of tree growth and adaptation. Yet, the application of genomics to improving forest productivity and sustainability still entails capturing a large proportion of the total genetic variation controlling the component traits. Nonetheless, genetics and genomics are unifying disciplines that will serve well to dissect the variables and mechanisms of tree growth and development.002AGénomique01Genomics01Genómica01Croissance02Growth02Crecimiento02Article synthèse03Review03Artículo síntesis03Biologie végétale04Plant biology04Biología vegetal04Arbre forestier10Forest tree10Arbol forestal10173OTOOTOPASCAL 09-0232939 INISTGenomics of growth traits in forest treesGRATTAPAGLIA (Dario); PLOMION (Christophe); KIRST (Matias); SEDEROFF (Ronald R.); YANO (Masahiro); TUBEROSA (Roberto)EMBRAPA Genetic Resources and Biotechnology, CP 2372/Brasília 70770-970 DF/Brésil (1 aut.); Graduate Program in Genomic Sciences and Biotechnology, Universidade Católica de Brasília -SGAN 916 módulo B/Brasília 70790-160 DF/Brésil (1 aut.); INRA, UMR 1202, 69 Route d'Arcachon/33612 Cestas/France (2 aut.); School of Forest Resources and Conservation, Graduate Program in Plant Molecular and Cellular Biology, and University of Florida Genetics Institute, University of Florida, PO Box 110410/Gainesville, FL 32611/Etats-Unis (3 aut.); Department of Forestry and Environmental Resources, North Carolina State University Campus Box 7247/Raleigh, NC 27695-7247/Etats-Unis (4 aut.); QTL Genomics Research Centre National Institute of Agrobiological Sciences/Tsukuba, Ibaraki/Japon (1 aut., 2 aut.)
Publication en série; Niveau analytique
Current opinion in plant biology; ISSN 1369-5266; Royaume-Uni; Da. 2009; Vol. 12; No. 2; Pp. 148-156; Bibl. 85 ref.AnglaisGrowth traits in trees are fundamental components of adaptation in a forest ecosystem and of productivity in planted forests. A number of processes determine tree growth, which are controlled by genetic and epigenetic factors that respond dynamically to environmental signals throughout centuries. Advances in genomics have allowed an increased comprehension of the complex mechanisms of tree growth and adaptation. Yet, the application of genomics to improving forest productivity and sustainability still entails capturing a large proportion of the total genetic variation controlling the component traits. Nonetheless, genetics and genomics are unifying disciplines that will serve well to dissect the variables and mechanisms of tree growth and development.002AGénomique; Croissance; Article synthèse; Biologie végétale; Arbre forestierGenomics; Growth; Review; Plant biology; Forest treeGenómica; Crecimiento; Artículo síntesis; Biología vegetal; Arbol forestalINIST-26758.35400018683731006009-0232939
000C20 First archeointensity results from Portuguese potteries (1550-1750 AD)Gelvam A. HarttnannDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 122605508-090, São PauloBRA1 aut.2 aut.Ricardo I. F. TrindadeDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 122605508-090, São PauloBRA1 aut.2 aut.Avto GoguitchaichviliLahoratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Geofisica, Universidad Nacional Autónoma de México, Ciudad Universitaria04510, México, DFMEX3 aut.5 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autónoma de México, Tzintzuntzan, 31058098, MoreliaMEX3 aut.5 aut.Carlos EtchevarneDepartamento de Antropologia, Universidade Federal da Bahia, Terreiro de Jesus, Prédio da Faculdade de Medicina40026-010, SalvadorBRA4 aut.Juan MoralesLahoratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Geofisica, Universidad Nacional Autónoma de México, Ciudad Universitaria04510, México, DFMEX3 aut.5 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autónoma de México, Tzintzuntzan, 31058098, MoreliaMEX3 aut.5 aut.Marisa C. AfonsoMuseu de Arqueologia e Etnologia, Universidade de São Paulo, Av. Prof. Almeida Prado, 146605508-090, São PauloBRA6 aut.09-02329942009PASCAL 09-0232994 INISTPascal:09-0232994001D591343-8832Earth planets spaceEarth, planets and spaceCooling rateWestern Europeageanisotropycorrectionsdipole momentfragmentsgeomagnetic fieldintensitymodelssecular variationstitanomagnetiteChamp géomagnétiqueModèleTitanomagnétiteFragmentIntensitéAnisotropieVitesse refroidissementMoment dipolaireAgeVariation séculaireCorrectionEurope Ouest
Geomagnetic field variations at archeomagnetic timescales can be obtained from well-dated heated structures and archeological potsherds. Here, we present the first archeointensity results obtained on Portuguese ceramics (1550 to 1750 AD) collected at Brazilian archeological sites. The results are compared to those obtained from Western Europe and currently available geomagnetic field models. Continuous thermomagnetic and IRM acquisitions curves indicate that Ti-poor titanomagnetite is responsible for the remanence in these ceramic fragments. Five fragments (24 samples) out of twelve analyzed yielded reliable intensity estimates. The row archeointensity data were corrected for TRM anisotropy and cooling rate effect. The mean dipole moments are obtained for three different age intervals: 1550±30 AD, 1600±30 AD and 1750±50 AD. Mean intensities vary from 37.9±4.2 μT to 54.8±7.6 μT in agreement with the previously reported data for 1550 AD and 1750 AD. Relatively weaker, but still highly dispersed, values were obtained for 1600 AD ceramics.
1343-8832Earth planets space611First archeointensity results from Portuguese potteries (1550-1750 AD)Magnetic of Volcanic Materials - Tribute to Works of Michel PrévotHARTTNANN (Gelvam A.)TRINDADE (Ricardo I. F.)GOGUITCHAICHVILI (Avto)ETCHEVARNE (Carlos)MORALES (Juan)AFONSO (Marisa C.)GOGUITCHAICHVILI (Avto)ed.CALVO RATHERT (Manuel)ed.CAMPS (Pierre)ed.Departamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 122605508-090, São PauloBRA1 aut.2 aut.Lahoratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Geofisica, Universidad Nacional Autónoma de México, Ciudad Universitaria04510, México, DFMEX3 aut.5 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autónoma de México, Tzintzuntzan, 31058098, MoreliaMEX3 aut.5 aut.Departamento de Antropologia, Universidade Federal da Bahia, Terreiro de Jesus, Prédio da Faculdade de Medicina40026-010, SalvadorBRA4 aut.Museu de Arqueologia e Etnologia, Universidade de São Paulo, Av. Prof. Almeida Prado, 146605508-090, São PauloBRA6 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus MoreliaMichoacanMEX1 aut.Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n09006 BurgosESP2 aut.Geoscience Montpellier, Université Montpellier 2, Case 04934095 MontpellierFRA3 aut.93-1002009ENGINIST27743540001868369900800000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0232994PAEarth, planets and spaceJPNGeomagnetic field variations at archeomagnetic timescales can be obtained from well-dated heated structures and archeological potsherds. Here, we present the first archeointensity results obtained on Portuguese ceramics (1550 to 1750 AD) collected at Brazilian archeological sites. The results are compared to those obtained from Western Europe and currently available geomagnetic field models. Continuous thermomagnetic and IRM acquisitions curves indicate that Ti-poor titanomagnetite is responsible for the remanence in these ceramic fragments. Five fragments (24 samples) out of twelve analyzed yielded reliable intensity estimates. The row archeointensity data were corrected for TRM anisotropy and cooling rate effect. The mean dipole moments are obtained for three different age intervals: 1550±30 AD, 1600±30 AD and 1750±50 AD. Mean intensities vary from 37.9±4.2 μT to 54.8±7.6 μT in agreement with the previously reported data for 1550 AD and 1750 AD. Relatively weaker, but still highly dispersed, values were obtained for 1600 AD ceramics.001E001E01D220DChamp géomagnétique01geomagnetic field01Modèle02models02Modelo02TitanomagnétiteNZ03titanomagnetiteNZ03TitanomagnetitaNZ03Fragment04fragments04Fragmento04Intensité05intensity05Intensidad05Anisotropie06anisotropy06Anisotropía06Vitesse refroidissement07Cooling rate07Velocidad enfriamiento07Moment dipolaire08dipole moment08Momento dipolar08Age09age09Edad09Variation séculaire10secular variations10Variación secular10Correction11corrections11Corrección11Europe OuestNG61Western EuropeNG61Europa del OesteNG61MagnetiteNZmagnetiteNZMagnetitaNZSpinelleNZspinelNZEspinelaNZOxydeNZoxidesNZÓxidoNZEurope564Europe564Europa564173OTOOTOPASCAL 09-0232994 INISTFirst archeointensity results from Portuguese potteries (1550-1750 AD)HARTTNANN (Gelvam A.); TRINDADE (Ricardo I. F.); GOGUITCHAICHVILI (Avto); ETCHEVARNE (Carlos); MORALES (Juan); AFONSO (Marisa C.); GOGUITCHAICHVILI (Avto); CALVO RATHERT (Manuel); CAMPS (Pierre)Departamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226/05508-090, São Paulo/Brésil (1 aut., 2 aut.); Lahoratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Geofisica, Universidad Nacional Autónoma de México, Ciudad Universitaria/04510, México, DF/Mexique (3 aut., 5 aut.); Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autónoma de México, Tzintzuntzan, 310/58098, Morelia/Mexique (3 aut., 5 aut.); Departamento de Antropologia, Universidade Federal da Bahia, Terreiro de Jesus, Prédio da Faculdade de Medicina/40026-010, Salvador/Brésil (4 aut.); Museu de Arqueologia e Etnologia, Universidade de São Paulo, Av. Prof. Almeida Prado, 1466/05508-090, São Paulo/Brésil (6 aut.); Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus Morelia/Michoacan/Mexique (1 aut.); Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n/09006 Burgos/Espagne (2 aut.); Geoscience Montpellier, Université Montpellier 2, Case 049/34095 Montpellier/France (3 aut.)
Publication en série; Niveau analytique
Earth, planets and space; ISSN 1343-8832; Japon; Da. 2009; Vol. 61; No. 1; Pp. 93-100; Bibl. 3/4 p.AnglaisGeomagnetic field variations at archeomagnetic timescales can be obtained from well-dated heated structures and archeological potsherds. Here, we present the first archeointensity results obtained on Portuguese ceramics (1550 to 1750 AD) collected at Brazilian archeological sites. The results are compared to those obtained from Western Europe and currently available geomagnetic field models. Continuous thermomagnetic and IRM acquisitions curves indicate that Ti-poor titanomagnetite is responsible for the remanence in these ceramic fragments. Five fragments (24 samples) out of twelve analyzed yielded reliable intensity estimates. The row archeointensity data were corrected for TRM anisotropy and cooling rate effect. The mean dipole moments are obtained for three different age intervals: 1550±30 AD, 1600±30 AD and 1750±50 AD. Mean intensities vary from 37.9±4.2 μT to 54.8±7.6 μT in agreement with the previously reported data for 1550 AD and 1750 AD. Relatively weaker, but still highly dispersed, values were obtained for 1600 AD ceramics.001E; 001E01D; 220DChamp géomagnétique; Modèle; Titanomagnétite; Fragment; Intensité; Anisotropie; Vitesse refroidissement; Moment dipolaire; Age; Variation séculaire; Correction; Europe OuestMagnetite; Spinelle; Oxyde; Europegeomagnetic field; models; titanomagnetite; fragments; intensity; anisotropy; Cooling rate; dipole moment; age; secular variations; corrections; Western Europemagnetite; spinel; oxides; EuropeModelo; Titanomagnetita; Fragmento; Intensidad; Anisotropía; Velocidad enfriamiento; Momento dipolar; Edad; Variación secular; Corrección; Europa del OesteINIST-2774.35400018683699008009-0232994
000C21 Paleointensity data from Early Cretaceous Ponta Grossa dikes (Brazil) using a multisample methodDaniele BrandtDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.Gelvam A. HartmannDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.Elder YokoyamaDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.Edgard L. CatelaniDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.Ricardo I. F. TrindadeDepartamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.09-02329972009PASCAL 09-0232997 INISTPascal:09-0232997001D581343-8832Earth planets spaceEarth, planets and spaceBrazilCretaceousDipoleLong termLong term variationParana Basindata basesdikesdipole momentexperimental studiesintensitymagnetic susceptibilitymonitoringstabilityvariabilitywarmingCrétacéDykeVariation long termeMoment dipolaireStabilitéSurveillanceSusceptibilité magnétiqueEtude expérimentaleRéchauffementIntensitéBase de donnéesVariabilitéDipôleLong termeBrésilBassin Parana
Definition of the long-term variation of the geomagnetic virtual dipole moment requires more reliable paleointensity results. Here, we applied a multisample protocol to the study of the 130.5 Ma Ponta Grossa basaltic dikes (southern Brazil) that carry a very stable dual-polarity magnetic component. The magnetic stability of the samples was checked using thermomagnetic curves and by monitoring the magnetic susceptibility evolution through the paleointensity experiments. Twelve sites containing the least alterable samples were chosen for the paleointensity measurements. Although these rocks failed stepwise double-heating experiments, they yielded coherent results in the multisample method for all sites but one. The coherent sites show low to moderate field intensities between 5.7±0.2 and 26.4±0.7 μT (average 13.4±1.9 μT). Virtual dipole moments for these sites range from 1.3±0.04 to 6.0 ± 0.2 × 1022 A m2 (average 2.9 ± 0.5 x 1022 A m2). Our results agree with the tendency for low dipole moments during the Early Cretaceous, immediately prior to the Cretaceous Normal Superchron (CNS). The available paleointensity database shows a strong variability of the field between 80 and 160 Ma. There seems to be no firm evidence for a Mesozoic Dipole Low, but a long-term tendency does emerge from the data with the highest dipole moments occurring at the middle of the CNS.
1343-8832Earth planets space611Paleointensity data from Early Cretaceous Ponta Grossa dikes (Brazil) using a multisample methodMagnetic of Volcanic Materials - Tribute to Works of Michel PrévotBRANDT (Daniele)HARTMANN (Gelvam A.)YOKOYAMA (Elder)CATELANI (Edgard L.)TRINDADE (Ricardo I. F.)GOGUITCHAICHVILI (Avto)ed.CALVO RATHERT (Manuel)ed.CAMPS (Pierre)ed.Departamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 122605508-090, São Paulo, SPBRA1 aut.2 aut.3 aut.4 aut.5 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus MoreliaMichoacanMEX1 aut.Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n09006 BurgosESP2 aut.Geoscience Montpellier, Université Montpellier 2, Case 04934095 MontpellierFRA3 aut.41-492009ENGINIST27743540001868369900300000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0232997PAEarth, planets and spaceJPNDefinition of the long-term variation of the geomagnetic virtual dipole moment requires more reliable paleointensity results. Here, we applied a multisample protocol to the study of the 130.5 Ma Ponta Grossa basaltic dikes (southern Brazil) that carry a very stable dual-polarity magnetic component. The magnetic stability of the samples was checked using thermomagnetic curves and by monitoring the magnetic susceptibility evolution through the paleointensity experiments. Twelve sites containing the least alterable samples were chosen for the paleointensity measurements. Although these rocks failed stepwise double-heating experiments, they yielded coherent results in the multisample method for all sites but one. The coherent sites show low to moderate field intensities between 5.7±0.2 and 26.4±0.7 μT (average 13.4±1.9 μT). Virtual dipole moments for these sites range from 1.3±0.04 to 6.0 ± 0.2 × 1022 A m2 (average 2.9 ± 0.5 x 1022 A m2). Our results agree with the tendency for low dipole moments during the Early Cretaceous, immediately prior to the Cretaceous Normal Superchron (CNS). The available paleointensity database shows a strong variability of the field between 80 and 160 Ma. There seems to be no firm evidence for a Mesozoic Dipole Low, but a long-term tendency does emerge from the data with the highest dipole moments occurring at the middle of the CNS.001E001E01D220DCrétacéNX01CretaceousNX01CretáceoNX01Dyke02dikes02Dique02Variation long terme03Long term variation03Variación largo plazo03Moment dipolaire04dipole moment04Momento dipolar04Stabilité05stability05Estabilidad05Surveillance06monitoring06Vigilancia06Susceptibilité magnétique07magnetic susceptibility07Susceptibilidad magnética07Etude expérimentale08experimental studies08Réchauffement09warming09Intensité10intensity10Intensidad10Base de données11data bases11Base dato11Variabilité12variability12Dipôle14Dipole14Dipolo14Long terme15Long term15Largo plazo15BrésilNG61BrazilNG61BrasilNG61Bassin ParanaNG62Parana BasinNG62Cuenca ParanaNG62MésozoïqueNXMesozoicNXPhanérozoïqueNXPhanerozoicNXFanerozoicoNXAmérique du Sud564South America564America del sur564173OTOOTOPASCAL 09-0232997 INISTPaleointensity data from Early Cretaceous Ponta Grossa dikes (Brazil) using a multisample methodBRANDT (Daniele); HARTMANN (Gelvam A.); YOKOYAMA (Elder); CATELANI (Edgard L.); TRINDADE (Ricardo I. F.); GOGUITCHAICHVILI (Avto); CALVO RATHERT (Manuel); CAMPS (Pierre)Departamento de Geofísica, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 1226/05508-090, São Paulo, SP/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus Morelia/Michoacan/Mexique (1 aut.); Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n/09006 Burgos/Espagne (2 aut.); Geoscience Montpellier, Université Montpellier 2, Case 049/34095 Montpellier/France (3 aut.)
Publication en série; Niveau analytique
Earth, planets and space; ISSN 1343-8832; Japon; Da. 2009; Vol. 61; No. 1; Pp. 41-49; Bibl. 3/4 p.AnglaisDefinition of the long-term variation of the geomagnetic virtual dipole moment requires more reliable paleointensity results. Here, we applied a multisample protocol to the study of the 130.5 Ma Ponta Grossa basaltic dikes (southern Brazil) that carry a very stable dual-polarity magnetic component. The magnetic stability of the samples was checked using thermomagnetic curves and by monitoring the magnetic susceptibility evolution through the paleointensity experiments. Twelve sites containing the least alterable samples were chosen for the paleointensity measurements. Although these rocks failed stepwise double-heating experiments, they yielded coherent results in the multisample method for all sites but one. The coherent sites show low to moderate field intensities between 5.7±0.2 and 26.4±0.7 μT (average 13.4±1.9 μT). Virtual dipole moments for these sites range from 1.3±0.04 to 6.0 ± 0.2 × 1022 A m2 (average 2.9 ± 0.5 x 1022 A m2). Our results agree with the tendency for low dipole moments during the Early Cretaceous, immediately prior to the Cretaceous Normal Superchron (CNS). The available paleointensity database shows a strong variability of the field between 80 and 160 Ma. There seems to be no firm evidence for a Mesozoic Dipole Low, but a long-term tendency does emerge from the data with the highest dipole moments occurring at the middle of the CNS.001E; 001E01D; 220DCrétacé; Dyke; Variation long terme; Moment dipolaire; Stabilité; Surveillance; Susceptibilité magnétique; Etude expérimentale; Réchauffement; Intensité; Base de données; Variabilité; Dipôle; Long terme; Brésil; Bassin ParanaMésozoïque; Phanérozoïque; Amérique du SudCretaceous; dikes; Long term variation; dipole moment; stability; monitoring; magnetic susceptibility; experimental studies; warming; intensity; data bases; variability; Dipole; Long term; Brazil; Parana BasinMesozoic; Phanerozoic; South AmericaCretáceo; Dique; Variación largo plazo; Momento dipolar; Estabilidad; Vigilancia; Susceptibilidad magnética; Intensidad; Base dato; Dipolo; Largo plazo; Brasil; Cuenca ParanaINIST-2774.35400018683699003009-0232997
000C22 Rock magnetism and microscopy of the Jacupiranga alkaline-carbonatitic complex, southern BrazilLuis M. Alva-ValdiviaLaboratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Ceofisica, UNAM, Ciudad Universitaria04510 México DFMEX1 aut.3 aut.4 aut.Géosciences Montpellier, Université Montpellier II34095 MontpellierFRA1 aut.2 aut.M. PerrinGéosciences Montpellier, Université Montpellier II34095 MontpellierFRA1 aut.2 aut.Mar A L. Rivas-SanchezLaboratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Ceofisica, UNAM, Ciudad Universitaria04510 México DFMEX1 aut.3 aut.4 aut.Avto GoguitchaichviliLaboratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Ceofisica, UNAM, Ciudad Universitaria04510 México DFMEX1 aut.3 aut.4 aut.Héctor Lopez-LoeraInstituto Potosino de Investigación Científica y Tecnológica A. C., Depto. Geología EconómicaSan Luis Potosí, S. L. PMEX5 aut.Omar Ferreira LopesUniversidade Federal do Paraná, Departamento de Geologia, Jardim das AméricasCuritiba, ParanáBRA6 aut.Thiago Bastos BonasPlanejamento de Lavra/Geologia, BUNGE Fertilizantes S/A Unidade CajatiSao PauloBRA7 aut.09-02330232009PASCAL 09-0233023 INISTPascal:09-0233023001D571343-8832Earth planets spaceEarth, planets and spaceBrazilMixingQRoom temperaturecarbonatiteschemical remanent magnetizationcoolingdepthhedenbergitehysteresisintensityjacupirangiteslow temperaturemaghemitemagmasmagnesioferritemagnetitemineralizationmixingnitrogenpyroxeniteremanent magnetizationsubstitutiontitanomagnetiteMagnetiteMagmaProfondeurMagnesioferriteCarbonatiteTitanomagnétiteMinéralisationPyroxéniteHedenbergiteSubstitutionFacteur QJacupirangiteAimantation rémanenteRefroidissementAimantation rémanente chimiqueIntensitéTempérature ambianteMaghemiteBasse températureAzoteHystérésisMixageMélangeageBrésil
This study of the Cajati deposit provides evidence that the ore was neither purely hydrothermal, nor volcanic in origin, as previous workers have proposed. The ores were formed from magnetite-rich magmas, hydrothermally altered and intruded at an indicated crustal depth in excess of 500 m. The mineralogical and textural association between magnetite and magnesioferrite in the carbonatite, and between the titanomagnetite and magnesioferrite-Ti mineralization in the pyroxenite of hedenbergite, seems to be analog mineralizations strongly related to the ionic substitution of Fe2+ by Mg. Relatively high Q ratios (>5) for Jacupirangite-pyroxenite may indicate a thermo remanent magnetization (TRM) by the ore during post-metamorphic cooling, however it can also be developed from chemical remanent magnetization (CRM). Vector plots for the pyroxenite samples show reasonably linear and stable magnetic components. The intensity decay curves show that only two components of magnetizations are likely present. Continuous susceptibility measurements with increasing temperature show that the main magnetic phase seems to be magnetite. Maghemite is probably produced during the cooling process. Susceptibility recorded from low temperature (liquid nitrogen (-196°C)) to room temperature produces typical curves, indicating Verwey transition of magnetite. Hysteresis parameters point out that nearly all values fall in a novel region of the Day plot, parallel to but below magnetite SD + MD mixing curves.
1343-8832Earth planets space611Rock magnetism and microscopy of the Jacupiranga alkaline-carbonatitic complex, southern BrazilMagnetic of Volcanic Materials - Tribute to Works of Michel PrévotALVA-VALDIVIA (Luis M.)PERRIN (M.)RIVAS-SANCHEZ (María L.)GOGUITCHAICHVILI (Avto)LOPEZ-LOERA (Héctor)FERREIRA LOPES (Omar)BASTOS BONAS (Thiago)GOGUITCHAICHVILI (Avto)ed.CALVO RATHERT (Manuel)ed.CAMPS (Pierre)ed.Laboratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Ceofisica, UNAM, Ciudad Universitaria04510 México DFMEX1 aut.3 aut.4 aut.Géosciences Montpellier, Université Montpellier II34095 MontpellierFRA1 aut.2 aut.Instituto Potosino de Investigación Científica y Tecnológica A. C., Depto. Geología EconómicaSan Luis Potosí, S. L. PMEX5 aut.Universidade Federal do Paraná, Departamento de Geologia, Jardim das AméricasCuritiba, ParanáBRA6 aut.Planejamento de Lavra/Geologia, BUNGE Fertilizantes S/A Unidade CajatiSao PauloBRA7 aut.Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus MoreliaMichoacanMEX1 aut.Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n09006 BurgosESP2 aut.Geoscience Montpellier, Université Montpellier 2, Case 04934095 MontpellierFRA3 aut.161-1712009ENGINIST27743540001868369901600000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0233023PAEarth, planets and spaceJPNThis study of the Cajati deposit provides evidence that the ore was neither purely hydrothermal, nor volcanic in origin, as previous workers have proposed. The ores were formed from magnetite-rich magmas, hydrothermally altered and intruded at an indicated crustal depth in excess of 500 m. The mineralogical and textural association between magnetite and magnesioferrite in the carbonatite, and between the titanomagnetite and magnesioferrite-Ti mineralization in the pyroxenite of hedenbergite, seems to be analog mineralizations strongly related to the ionic substitution of Fe2+ by Mg. Relatively high Q ratios (>5) for Jacupirangite-pyroxenite may indicate a thermo remanent magnetization (TRM) by the ore during post-metamorphic cooling, however it can also be developed from chemical remanent magnetization (CRM). Vector plots for the pyroxenite samples show reasonably linear and stable magnetic components. The intensity decay curves show that only two components of magnetizations are likely present. Continuous susceptibility measurements with increasing temperature show that the main magnetic phase seems to be magnetite. Maghemite is probably produced during the cooling process. Susceptibility recorded from low temperature (liquid nitrogen (-196°C)) to room temperature produces typical curves, indicating Verwey transition of magnetite. Hysteresis parameters point out that nearly all values fall in a novel region of the Day plot, parallel to but below magnetite SD + MD mixing curves.001E001E01D220DMagnetiteNZ01magnetiteNZ01MagnetitaNZ01Magma02magmas02Magma02Profondeur03depth03Profundidad03MagnesioferriteNZ04magnesioferriteNZ04MagnesioferritaNZ04CarbonatiteNV05carbonatitesNV05CarbonatitaNV05TitanomagnétiteNZ06titanomagnetiteNZ06TitanomagnetitaNZ06Minéralisation07mineralization07Mineralización07PyroxéniteNV08pyroxeniteNV08PiroxenitaNV08HedenbergiteNZ09hedenbergiteNZ09HedenbergitaNZ09Substitution10substitution10Substitución10Facteur Q11Q11Factor Q11JacupirangiteNV12jacupirangitesNV12Aimantation rémanente13remanent magnetization13Imanación remanente13Refroidissement14cooling14Enfriamiento14Aimantation rémanente chimique15chemical remanent magnetization15Imantación remanente química15Intensité16intensity16Intensidad16Température ambiante17Room temperature17Temperatura ambiente17MaghemiteNZ18maghemiteNZ18MaghemitaNZ18Basse température19low temperature19Baja temperatura19Azote20nitrogen20Nitrógeno20Hystérésis21hysteresis21Mixage22mixing22Mezcla22Mélangeage23Mixing23Mezclado23BrésilNG61BrazilNG61BrasilNG61SpinelleNZspinelNZEspinelaNZOxydeNZoxidesNZÓxidoNZRoche plutoniqueNVplutonic rocksNVRoca granudaNVRoche ignéeNVigneous rocksNVRoca igneaNVRoche ultramafiqueNVultramaficsNVPyroxène clinoNZclinopyroxeneNZPiroxeno clinoNZPyroxèneNZpyroxeneNZPiroxenoNZInosilicateNZchain silicatesNZSilicateNZsilicatesNZSilicatoNZIjoliteNVijoliteNVOxyde ferNZiron oxidesNZÓxido de hierroNZAmérique du Sud564South America564America del sur564173OTOOTOPASCAL 09-0233023 INISTRock magnetism and microscopy of the Jacupiranga alkaline-carbonatitic complex, southern BrazilALVA-VALDIVIA (Luis M.); PERRIN (M.); RIVAS-SANCHEZ (María L.); GOGUITCHAICHVILI (Avto); LOPEZ-LOERA (Héctor); FERREIRA LOPES (Omar); BASTOS BONAS (Thiago); GOGUITCHAICHVILI (Avto); CALVO RATHERT (Manuel); CAMPS (Pierre)Laboratorio de Paleomagnetismo y Geofisica Nuclear, Instituto de Ceofisica, UNAM, Ciudad Universitaria/04510 México DF/Mexique (1 aut., 3 aut., 4 aut.); Géosciences Montpellier, Université Montpellier II/34095 Montpellier/France (1 aut., 2 aut.); Instituto Potosino de Investigación Científica y Tecnológica A. C., Depto. Geología Económica/San Luis Potosí, S. L. P/Mexique (5 aut.); Universidade Federal do Paraná, Departamento de Geologia, Jardim das Américas/Curitiba, Paraná/Brésil (6 aut.); Planejamento de Lavra/Geologia, BUNGE Fertilizantes S/A Unidade Cajati/Sao Paulo/Brésil (7 aut.); Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofisica, Universidad Nacional Autonoma de Mexico, Campus Morelia/Michoacan/Mexique (1 aut.); Departamento de Física, EPS, Universidad de Burgos, c/Francisco de Vitoria, s/n/09006 Burgos/Espagne (2 aut.); Geoscience Montpellier, Université Montpellier 2, Case 049/34095 Montpellier/France (3 aut.)
Publication en série; Niveau analytique
Earth, planets and space; ISSN 1343-8832; Japon; Da. 2009; Vol. 61; No. 1; Pp. 161-171; Bibl. 3/4 p.AnglaisThis study of the Cajati deposit provides evidence that the ore was neither purely hydrothermal, nor volcanic in origin, as previous workers have proposed. The ores were formed from magnetite-rich magmas, hydrothermally altered and intruded at an indicated crustal depth in excess of 500 m. The mineralogical and textural association between magnetite and magnesioferrite in the carbonatite, and between the titanomagnetite and magnesioferrite-Ti mineralization in the pyroxenite of hedenbergite, seems to be analog mineralizations strongly related to the ionic substitution of Fe2+ by Mg. Relatively high Q ratios (>5) for Jacupirangite-pyroxenite may indicate a thermo remanent magnetization (TRM) by the ore during post-metamorphic cooling, however it can also be developed from chemical remanent magnetization (CRM). Vector plots for the pyroxenite samples show reasonably linear and stable magnetic components. The intensity decay curves show that only two components of magnetizations are likely present. Continuous susceptibility measurements with increasing temperature show that the main magnetic phase seems to be magnetite. Maghemite is probably produced during the cooling process. Susceptibility recorded from low temperature (liquid nitrogen (-196°C)) to room temperature produces typical curves, indicating Verwey transition of magnetite. Hysteresis parameters point out that nearly all values fall in a novel region of the Day plot, parallel to but below magnetite SD + MD mixing curves.001E; 001E01D; 220DMagnetite; Magma; Profondeur; Magnesioferrite; Carbonatite; Titanomagnétite; Minéralisation; Pyroxénite; Hedenbergite; Substitution; Facteur Q; Jacupirangite; Aimantation rémanente; Refroidissement; Aimantation rémanente chimique; Intensité; Température ambiante; Maghemite; Basse température; Azote; Hystérésis; Mixage; Mélangeage; BrésilSpinelle; Oxyde; Roche plutonique; Roche ignée; Roche ultramafique; Pyroxène clino; Pyroxène; Inosilicate; Silicate; Ijolite; Oxyde fer; Amérique du Sudmagnetite; magmas; depth; magnesioferrite; carbonatites; titanomagnetite; mineralization; pyroxenite; hedenbergite; substitution; Q; jacupirangites; remanent magnetization; cooling; chemical remanent magnetization; intensity; Room temperature; maghemite; low temperature; nitrogen; hysteresis; mixing; Mixing; Brazilspinel; oxides; plutonic rocks; igneous rocks; ultramafics; clinopyroxene; pyroxene; chain silicates; silicates; ijolite; iron oxides; South AmericaMagnetita; Magma; Profundidad; Magnesioferrita; Carbonatita; Titanomagnetita; Mineralización; Piroxenita; Hedenbergita; Substitución; Factor Q; Imanación remanente; Enfriamiento; Imantación remanente química; Intensidad; Temperatura ambiente; Maghemita; Baja temperatura; Nitrógeno; Mezcla; Mezclado; BrasilINIST-2774.35400018683699016009-0233023
000C23 Searching for critical angles in a convex coneAlfredo IusemInstituto de Matemática Pura e Aplicada, Estrada Dona Castorina, 110-Jardim BotânicoRio de JaneiroBRA1 aut.Alberto SeegerDepartment of Mathematics, University of Avignon, 33, rue Pasteur84000 AvignonFRA2 aut.09-02335562009PASCAL 09-0233556 INISTPascal:09-0233556001D560025-5610Math. program.Mathematical programmingConeConvex programmingCriticalityMathematical programmingNon convex programmingPolyhedronUpper boundVector optimizationProgrammation mathématiqueOptimisation vectorielleProgrammation convexeCôneCriticitéPolyèdreBorne supérieureProgrammation non convexe
The concept of antipodality relative to a closed convex cone K c Rd has been explored in detail in a recent work of ours. The antipodality problem consists of finding a pair of unit vectors in K achieving the maximal angle of the cone. Our attention now is focused not just in the maximal angle, but in the angular spectrum of the cone. By definition, the angular spectrum of a cone is the set of angles satisfying the stationarity (or criticality) condition associated to the maximization problem involved in the determination of the maximal angle. In the case of a polyhedral cone, the angular spectrum turns out to be a finite set. Among other results, we obtain an upper bound for the cardinality of this set. We also discuss the link between the critical angles of a cone K and the critical angles of its dual cone.
0025-5610MHPGA4Math. program.1201Searching for critical angles in a convex coneNonsmooth Optimization and ApplicationsIUSEM (Alfredo)SEEGER (Alberto)MORDUKHOVICH (Boris)limin.NEMIROVSKI (Arkadi)limin.NESTEROV (Yurii)limin.Instituto de Matemática Pura e Aplicada, Estrada Dona Castorina, 110-Jardim BotânicoRio de JaneiroBRA1 aut.Department of Mathematics, University of Avignon, 33, rue Pasteur84000 AvignonFRA2 aut.Department of Mathematics, Wayne State UniversityDetroit, MI 48202USA1 aut.School of Industrial and Systems Engineering, Georgia Institute of Technology, 765 Ferst DriveAtlanta, GA 30332-0205USA2 aut.Center for Operations Research and Econometrics, Catholic University of louvain, 34 voie du Roman Pays1348 Louvain la NeuveBEL3 aut.3-252009ENGINIST156553540001867954900100000© 2009 INIST-CNRS. All rights reserved.8 ref.09-0233556PAMathematical programmingDEUThe concept of antipodality relative to a closed convex cone K c Rd has been explored in detail in a recent work of ours. The antipodality problem consists of finding a pair of unit vectors in K achieving the maximal angle of the cone. Our attention now is focused not just in the maximal angle, but in the angular spectrum of the cone. By definition, the angular spectrum of a cone is the set of angles satisfying the stationarity (or criticality) condition associated to the maximization problem involved in the determination of the maximal angle. In the case of a polyhedral cone, the angular spectrum turns out to be a finite set. Among other results, we obtain an upper bound for the cardinality of this set. We also discuss the link between the critical angles of a cone K and the critical angles of its dual cone.001D01A03Programmation mathématique01Mathematical programming01Programación matemática01Optimisation vectorielle06Vector optimization06Optimización vectorial06Programmation convexe07Convex programming07Programación convexa07Cône08Cone08Cono08Criticité09Criticality09Criticidad09Polyèdre10Polyhedron10Poliedro10Borne supérieure11Upper bound11Cota superior11Programmation non convexe12Non convex programming12Programación no convexa12173OTOOTOPASCAL 09-0233556 INISTSearching for critical angles in a convex coneIUSEM (Alfredo); SEEGER (Alberto); MORDUKHOVICH (Boris); NEMIROVSKI (Arkadi); NESTEROV (Yurii)Instituto de Matemática Pura e Aplicada, Estrada Dona Castorina, 110-Jardim Botânico/Rio de Janeiro/Brésil (1 aut.); Department of Mathematics, University of Avignon, 33, rue Pasteur/84000 Avignon/France (2 aut.); Department of Mathematics, Wayne State University/Detroit, MI 48202/Etats-Unis (1 aut.); School of Industrial and Systems Engineering, Georgia Institute of Technology, 765 Ferst Drive/Atlanta, GA 30332-0205/Etats-Unis (2 aut.); Center for Operations Research and Econometrics, Catholic University of louvain, 34 voie du Roman Pays/1348 Louvain la Neuve/Belgique (3 aut.)
Publication en série; Niveau analytique
Mathematical programming; ISSN 0025-5610; Coden MHPGA4; Allemagne; Da. 2009; Vol. 120; No. 1; Pp. 3-25; Bibl. 8 ref.AnglaisThe concept of antipodality relative to a closed convex cone K c Rd has been explored in detail in a recent work of ours. The antipodality problem consists of finding a pair of unit vectors in K achieving the maximal angle of the cone. Our attention now is focused not just in the maximal angle, but in the angular spectrum of the cone. By definition, the angular spectrum of a cone is the set of angles satisfying the stationarity (or criticality) condition associated to the maximization problem involved in the determination of the maximal angle. In the case of a polyhedral cone, the angular spectrum turns out to be a finite set. Among other results, we obtain an upper bound for the cardinality of this set. We also discuss the link between the critical angles of a cone K and the critical angles of its dual cone.001D01A03Programmation mathématique; Optimisation vectorielle; Programmation convexe; Cône; Criticité; Polyèdre; Borne supérieure; Programmation non convexeMathematical programming; Vector optimization; Convex programming; Cone; Criticality; Polyhedron; Upper bound; Non convex programmingProgramación matemática; Optimización vectorial; Programación convexa; Cono; Criticidad; Poliedro; Cota superior; Programación no convexaINIST-15655.35400018679549001009-0233556
000C24 Echo Cancellation-The Generalized Likelihood Ratio Test For Double-Talk Versus Channel ChangeJean-Yves TourneretUniversity of Toulouse, IRIT-ENSEEIHT- TéSA31071 ToulouseFRA1 aut.Neil J. BershadDepartment of Electrical Engineering and Computer Science, University of California at IrvineNewport Beach, CA 92660USA2 aut.José Carlos M. BermudezDepartment of Electrical Engineering, Federal University of Santa CatarinaFlorianopolis, SCBRA3 aut.09-02353952009PASCAL 09-0235395 INISTPascal:09-0235395001D551053-587XIEEE trans. signal process.IEEE transactions on signal processingA priori estimationAdaptive filterAdaptive signal processingAdaptive systemAlgorithmBackground noiseEcho suppressionElectrical impedanceFalse alarm rateLikelihood ratioLikelihood ratio testLogarithmic functionMicrophoneMismatchingNoise reductionPerformance evaluationProbability density functionSignal processingStatistical methodTheoretical modelSuppression échoRéduction bruitTest rapport vraisemblanceImpédance électriqueDésadaptationMicrophoneAlgorithmeEstimation a prioriBruit fondRapport vraisemblanceFonction logarithmiqueFonction densité probabilitéEvaluation performanceTaux fausse alarmeModèle théoriqueFiltre adaptatifTraitement signal adaptatifSystème adaptatifTraitement signalMéthode statistique
Echo cancellers (EC) are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation. Basically, the algorithm weights should be frozen in the presence of double-talk and adapt quickly in the absence of double-talk. The optimum likelihood ratio test (LRT) for this problem was studied in a recent paper. The LRT requires a priori knowledge of the background noise and double-talk power levels. Instead, this paper derives a generalized log likelihood ratio test (GLRT) that does not require this knowledge. The probability density function of a sufficient statistic under each hypothesis is obtained and the performance of the test is evaluated as a function of the system parameters. The receiver operating characteristics (ROCs) indicate that it is difficult to correctly decide between double-talk and a channel change, based upon a single look. However, detection based on about 200 successive samples yields a detection probability close to unity (0.99) with a small false alarm probability (0.01) for the theoretical GLRT model. Application of a GLRT-based EC to real voice data shows comparable performance to that of the LRT-based EC given in a recent paper.
1053-587XITPREDIEEE trans. signal process.573Echo Cancellation-The Generalized Likelihood Ratio Test For Double-Talk Versus Channel ChangeTOURNERET (Jean-Yves)BERSHAD (Neil J.)BERMUDEZ (José Carlos M.)University of Toulouse, IRIT-ENSEEIHT- TéSA31071 ToulouseFRA1 aut.Department of Electrical Engineering and Computer Science, University of California at IrvineNewport Beach, CA 92660USA2 aut.Department of Electrical Engineering, Federal University of Santa CatarinaFlorianopolis, SCBRA3 aut.916-9262009ENGINIST222E33540001884175000900000© 2009 INIST-CNRS. All rights reserved.13 ref.09-0235395PAIEEE transactions on signal processingUSAEcho cancellers (EC) are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation. Basically, the algorithm weights should be frozen in the presence of double-talk and adapt quickly in the absence of double-talk. The optimum likelihood ratio test (LRT) for this problem was studied in a recent paper. The LRT requires a priori knowledge of the background noise and double-talk power levels. Instead, this paper derives a generalized log likelihood ratio test (GLRT) that does not require this knowledge. The probability density function of a sufficient statistic under each hypothesis is obtained and the performance of the test is evaluated as a function of the system parameters. The receiver operating characteristics (ROCs) indicate that it is difficult to correctly decide between double-talk and a channel change, based upon a single look. However, detection based on about 200 successive samples yields a detection probability close to unity (0.99) with a small false alarm probability (0.01) for the theoretical GLRT model. Application of a GLRT-based EC to real voice data shows comparable performance to that of the LRT-based EC given in a recent paper.001D04A04A2001D04A05DSuppression écho01Echo suppression01Réduction bruit02Noise reduction02Reducción ruido02Test rapport vraisemblance03Likelihood ratio test03Test razón verosimilitud03Impédance électrique04Electrical impedance04Impedancia eléctrica04Désadaptation05Mismatching05Desadaptación05Microphone06Microphone06Micrófono06Algorithme07Algorithm07Algoritmo07Estimation a priori08A priori estimation08Estimación a priori08Bruit fond09Background noise09Ruido fondo09Rapport vraisemblance10Likelihood ratio10Relación verosimilitud10Fonction logarithmique11Logarithmic function11Función logarítmica11Fonction densité probabilité12Probability density function12Función densidad probabilidad12Evaluation performance13Performance evaluation13Evaluación prestación13Taux fausse alarme14False alarm rate14Porcentaje falsa alarma14Modèle théorique15Theoretical model15Modelo teórico15Filtre adaptatif16Adaptive filter16Filtro adaptable16Traitement signal adaptatif17Adaptive signal processing17Système adaptatif18Adaptive system18Sistema adaptativo18Traitement signal31Signal processing31Procesamiento señal31Méthode statistique32Statistical method32Método estadístico32173OTOOTOPASCAL 09-0235395 INISTEcho Cancellation-The Generalized Likelihood Ratio Test For Double-Talk Versus Channel ChangeTOURNERET (Jean-Yves); BERSHAD (Neil J.); BERMUDEZ (José Carlos M.)University of Toulouse, IRIT-ENSEEIHT- TéSA/31071 Toulouse/France (1 aut.); Department of Electrical Engineering and Computer Science, University of California at Irvine/Newport Beach, CA 92660/Etats-Unis (2 aut.); Department of Electrical Engineering, Federal University of Santa Catarina/Florianopolis, SC/Brésil (3 aut.)
Publication en série; Niveau analytique
IEEE transactions on signal processing; ISSN 1053-587X; Coden ITPRED; Etats-Unis; Da. 2009; Vol. 57; No. 3; Pp. 916-926; Bibl. 13 ref.AnglaisEcho cancellers (EC) are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation. Basically, the algorithm weights should be frozen in the presence of double-talk and adapt quickly in the absence of double-talk. The optimum likelihood ratio test (LRT) for this problem was studied in a recent paper. The LRT requires a priori knowledge of the background noise and double-talk power levels. Instead, this paper derives a generalized log likelihood ratio test (GLRT) that does not require this knowledge. The probability density function of a sufficient statistic under each hypothesis is obtained and the performance of the test is evaluated as a function of the system parameters. The receiver operating characteristics (ROCs) indicate that it is difficult to correctly decide between double-talk and a channel change, based upon a single look. However, detection based on about 200 successive samples yields a detection probability close to unity (0.99) with a small false alarm probability (0.01) for the theoretical GLRT model. Application of a GLRT-based EC to real voice data shows comparable performance to that of the LRT-based EC given in a recent paper.001D04A04A2; 001D04A05DSuppression écho; Réduction bruit; Test rapport vraisemblance; Impédance électrique; Désadaptation; Microphone; Algorithme; Estimation a priori; Bruit fond; Rapport vraisemblance; Fonction logarithmique; Fonction densité probabilité; Evaluation performance; Taux fausse alarme; Modèle théorique; Filtre adaptatif; Traitement signal adaptatif; Système adaptatif; Traitement signal; Méthode statistiqueEcho suppression; Noise reduction; Likelihood ratio test; Electrical impedance; Mismatching; Microphone; Algorithm; A priori estimation; Background noise; Likelihood ratio; Logarithmic function; Probability density function; Performance evaluation; False alarm rate; Theoretical model; Adaptive filter; Adaptive signal processing; Adaptive system; Signal processing; Statistical methodReducción ruido; Test razón verosimilitud; Impedancia eléctrica; Desadaptación; Micrófono; Algoritmo; Estimación a priori; Ruido fondo; Relación verosimilitud; Función logarítmica; Función densidad probabilidad; Evaluación prestación; Porcentaje falsa alarma; Modelo teórico; Filtro adaptable; Sistema adaptativo; Procesamiento señal; Método estadísticoINIST-222E3.35400018841750009009-0235395
000C25 Online Prediction of Time Series Data With KernelsCédric RichardInstitut Charles Delaunay (FRE CNRS 2848), Laboratoire LM2S, Université de technologie de Troyes10010 TroyesFRA1 aut.3 aut.José Carlos M. BermudezDepartment of Electrical Engineering, Federal University of Santa Catarina88040-900, Florianópolis, SCBRA2 aut.Paul HoneineInstitut Charles Delaunay (FRE CNRS 2848), Laboratoire LM2S, Université de technologie de Troyes10010 TroyesFRA1 aut.3 aut.09-02354082009PASCAL 09-0235408 INISTPascal:09-0235408001D541053-587XIEEE trans. signal process.IEEE transactions on signal processingAdaptive filterAffine transformationAlgorithmCoherenceComputation timeDensity estimationDictionariesKernel methodLearningLeast mean squares methodsNon linear systemNonlinear problemsOn-line systemsPattern recognitionSignal processingSparse representationTime seriesSystème en ligneSérie temporelleMéthode noyauAlgorithmeApprentissageProblème non linéaireReconnaissance formeEstimation densitéTemps calculCohérenceDictionnaireReprésentation parcimonieuseTransformation affineMéthode moindre carré moyenFiltre adaptatifSystème non linéaireTraitement signal
Kernel-based algorithms have been a topic of considerable interest in the machine learning community over the last ten years. Their attractiveness resides in their elegant treatment of nonlinear problems. They have been successfully applied to pattern recognition, regression and density estimation. A common characteristic of kernel-based methods is that they deal with kernel expansions whose number of terms equals the number of input data, making them unsuitable for online applications. Recently, several solutions have been proposed to circumvent this computational burden in time series prediction problems. Nevertheless, most of them require excessively elaborate and costly operations. In this paper, we investigate a new model reduction criterion that makes computationally demanding sparsification procedures unnecessary. The increase in the number of variables is controlled by the coherence parameter, a fundamental quantity that characterizes the behavior of dictionaries in sparse approximation problems. We incorporate the coherence criterion into a new kernel-based affine projection algorithm for time series prediction. We also derive the kernel-based normalized LMS algorithm as a particular case. Finally, experiments are conducted to compare our approach to existing methods.
1053-587XITPREDIEEE trans. signal process.573Online Prediction of Time Series Data With KernelsRICHARD (Cédric)BERMUDEZ (José Carlos M.)HONEINE (Paul)Institut Charles Delaunay (FRE CNRS 2848), Laboratoire LM2S, Université de technologie de Troyes10010 TroyesFRA1 aut.3 aut.Department of Electrical Engineering, Federal University of Santa Catarina88040-900, Florianópolis, SCBRA2 aut.1058-10672009ENGINIST222E33540001884175002000000© 2009 INIST-CNRS. All rights reserved.43 ref.09-0235408PAIEEE transactions on signal processingUSAKernel-based algorithms have been a topic of considerable interest in the machine learning community over the last ten years. Their attractiveness resides in their elegant treatment of nonlinear problems. They have been successfully applied to pattern recognition, regression and density estimation. A common characteristic of kernel-based methods is that they deal with kernel expansions whose number of terms equals the number of input data, making them unsuitable for online applications. Recently, several solutions have been proposed to circumvent this computational burden in time series prediction problems. Nevertheless, most of them require excessively elaborate and costly operations. In this paper, we investigate a new model reduction criterion that makes computationally demanding sparsification procedures unnecessary. The increase in the number of variables is controlled by the coherence parameter, a fundamental quantity that characterizes the behavior of dictionaries in sparse approximation problems. We incorporate the coherence criterion into a new kernel-based affine projection algorithm for time series prediction. We also derive the kernel-based normalized LMS algorithm as a particular case. Finally, experiments are conducted to compare our approach to existing methods.001D04A05A001D04A04A2001D04A05DSystème en ligne01On-line systems01Série temporelle02Time series02Serie temporal02Méthode noyau03Kernel method03Método núcleo03Algorithme04Algorithm04Algoritmo04Apprentissage05Learning05Aprendizaje05Problème non linéaire06Nonlinear problems06Reconnaissance forme07Pattern recognition07Reconocimiento patrón07Estimation densité08Density estimation08Estimación densidad08Temps calcul09Computation time09Tiempo computación09Cohérence10Coherence10Coherencia10Dictionnaire11Dictionaries11Diccionario11Représentation parcimonieuse12Sparse representation12Representación parsimoniosa12Transformation affine13Affine transformation13Transformación afín13Méthode moindre carré moyen14Least mean squares methods14Filtre adaptatif15Adaptive filter15Filtro adaptable15Système non linéaire16Non linear system16Sistema no lineal16Traitement signal31Signal processing31Procesamiento señal31173OTOOTOPASCAL 09-0235408 INISTOnline Prediction of Time Series Data With KernelsRICHARD (Cédric); BERMUDEZ (José Carlos M.); HONEINE (Paul)Institut Charles Delaunay (FRE CNRS 2848), Laboratoire LM2S, Université de technologie de Troyes/10010 Troyes/France (1 aut., 3 aut.); Department of Electrical Engineering, Federal University of Santa Catarina/88040-900, Florianópolis, SC/Brésil (2 aut.)
Publication en série; Niveau analytique
IEEE transactions on signal processing; ISSN 1053-587X; Coden ITPRED; Etats-Unis; Da. 2009; Vol. 57; No. 3; Pp. 1058-1067; Bibl. 43 ref.AnglaisKernel-based algorithms have been a topic of considerable interest in the machine learning community over the last ten years. Their attractiveness resides in their elegant treatment of nonlinear problems. They have been successfully applied to pattern recognition, regression and density estimation. A common characteristic of kernel-based methods is that they deal with kernel expansions whose number of terms equals the number of input data, making them unsuitable for online applications. Recently, several solutions have been proposed to circumvent this computational burden in time series prediction problems. Nevertheless, most of them require excessively elaborate and costly operations. In this paper, we investigate a new model reduction criterion that makes computationally demanding sparsification procedures unnecessary. The increase in the number of variables is controlled by the coherence parameter, a fundamental quantity that characterizes the behavior of dictionaries in sparse approximation problems. We incorporate the coherence criterion into a new kernel-based affine projection algorithm for time series prediction. We also derive the kernel-based normalized LMS algorithm as a particular case. Finally, experiments are conducted to compare our approach to existing methods.001D04A05A; 001D04A04A2; 001D04A05DSystème en ligne; Série temporelle; Méthode noyau; Algorithme; Apprentissage; Problème non linéaire; Reconnaissance forme; Estimation densité; Temps calcul; Cohérence; Dictionnaire; Représentation parcimonieuse; Transformation affine; Méthode moindre carré moyen; Filtre adaptatif; Système non linéaire; Traitement signalOn-line systems; Time series; Kernel method; Algorithm; Learning; Nonlinear problems; Pattern recognition; Density estimation; Computation time; Coherence; Dictionaries; Sparse representation; Affine transformation; Least mean squares methods; Adaptive filter; Non linear system; Signal processingSerie temporal; Método núcleo; Algoritmo; Aprendizaje; Reconocimiento patrón; Estimación densidad; Tiempo computación; Coherencia; Diccionario; Representación parsimoniosa; Transformación afín; Filtro adaptable; Sistema no lineal; Procesamiento señalINIST-222E3.35400018841750020009-0235408
000C26 Expression patterns of cell wall-modifying genes from banana during fruit ripening and in relationship with finger dropD. Mbeguie-A-MbeguieCIRAD, UMR QUALITROP97130 Capesterre-Belle-EauGLP1 aut.O. HubertCIRAD, UMR QUALISUD97130 Capesterre-Belle-EauGLP2 aut.CIRAD, UMR OUALISUD34398 MontpellierFRA2 aut.5 aut.F. C. BaurensCIRAD, UMR DAP34398 MontpellierFRA3 aut.7 aut.T. MatsumotoRice Genome Research Program (RGP), National Institute of Agrobiological Sciences (NIAS)/Institute of the Society for Techno-innovation of Agriculture, Forestry and FisheriesTsukuba, Ibaraki 305-8602JPN4 aut.M. ChilletCIRAD, UMR QUALISUDSao Paulo, SPBRA5 aut.CIRAD, UMR OUALISUD34398 MontpellierFRA2 aut.5 aut.Universidade de Sao Paulo, Dpto dos Alimentos e Nutriçao Experimental USP/FCFSão Paulo, SPBRA5 aut.B. Fils-LycaonINRA, UMR QUALITROP97170 Petit-BourgGLP6 aut.S. Sidibe-BocsCIRAD, UMR DAP34398 MontpellierFRA3 aut.7 aut.09-02392452009PASCAL 09-0239245 INISTPascal:09-0239245001D530022-0957J. exp. bot.Journal of experimental botanyBananaBotanyCell wallExpansinFruitGeneHydrolasesMusaRipeningParoi cellulaireGèneFruitMaturationBotaniqueMusaBananeHydrolasesXyloglucaneExpansine
Few molecular studies have been devoted to the finger drop process that occurs during banana fruit ripening. Recent studies revealed the involvement of changes in the properties of cell wall polysaccharides in the pedicel rupture area. In this study, the expression of cell-wall modifying genes was monitored in peel tissue during post-harvest ripening of Cavendish banana fruit, at median area (control zone) and compared with that in the pedicel rupture area (drop zone). To this end, three pectin methylesterase (PME) and seven xyloglucan endotransglycosylase/hydrolase (XTH) genes were isolated. The accumulation of their mRNAs and those of polygalaturonase, expansin, and pectate lyase genes already isolated from banana were examined. During post-harvest ripening, transcripts of all genes were detected in both zones, but accumulated differentially. MaPME1, MaPG1, and MaXTH4 mRNA levels did not change in either zone. Levels of MaPME3 and MaPG3 mRNAs increased greatly only in the control zone and at the late ripening stages. For other genes, the main molecular changes occurred 1-4 d after ripening induction. MaPME2, MaPEL1, MaPEL2, MaPG4, MaXTH6, MaXTH8, MaXTH9, MaEXP1, MaEXP4, and MaEXP5 accumulated highly in the drop zone, contrary to MaXTH3 and MaXTH5, and MaEXP2 throughout ripening. For MaPG2, MaXET1, and MaXET2 genes, high accumulation in the drop zone was transient. The transcriptional data obtained from all genes examined suggested that finger drop and peel softening involved similar mechanisms. These findings also led to the proposal of a sequence of molecular events leading to finger drop and to suggest some candidates.
0022-0957JEBOA6J. exp. bot.607Expression patterns of cell wall-modifying genes from banana during fruit ripening and in relationship with finger dropMBEGUIE-A-MBEGUIE (D.)HUBERT (O.)BAURENS (F. C.)MATSUMOTO (T.)CHILLET (M.)FILS-LYCAON (B.)SIDIBE-BOCS (S.)CIRAD, UMR QUALITROP97130 Capesterre-Belle-EauGLP1 aut.CIRAD, UMR QUALISUD97130 Capesterre-Belle-EauGLP2 aut.CIRAD, UMR DAP34398 MontpellierFRA3 aut.7 aut.Rice Genome Research Program (RGP), National Institute of Agrobiological Sciences (NIAS)/Institute of the Society for Techno-innovation of Agriculture, Forestry and FisheriesTsukuba, Ibaraki 305-8602JPN4 aut.CIRAD, UMR QUALISUDSao Paulo, SPBRA5 aut.CIRAD, UMR OUALISUD34398 MontpellierFRA2 aut.5 aut.Universidade de Sao Paulo, Dpto dos Alimentos e Nutriçao Experimental USP/FCFSão Paulo, SPBRA5 aut.INRA, UMR QUALITROP97170 Petit-BourgGLP6 aut.2021-20342009ENGINIST69233540001878540301300000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0239245PPRAJournal of experimental botanyGBRFew molecular studies have been devoted to the finger drop process that occurs during banana fruit ripening. Recent studies revealed the involvement of changes in the properties of cell wall polysaccharides in the pedicel rupture area. In this study, the expression of cell-wall modifying genes was monitored in peel tissue during post-harvest ripening of Cavendish banana fruit, at median area (control zone) and compared with that in the pedicel rupture area (drop zone). To this end, three pectin methylesterase (PME) and seven xyloglucan endotransglycosylase/hydrolase (XTH) genes were isolated. The accumulation of their mRNAs and those of polygalaturonase, expansin, and pectate lyase genes already isolated from banana were examined. During post-harvest ripening, transcripts of all genes were detected in both zones, but accumulated differentially. MaPME1, MaPG1, and MaXTH4 mRNA levels did not change in either zone. Levels of MaPME3 and MaPG3 mRNAs increased greatly only in the control zone and at the late ripening stages. For other genes, the main molecular changes occurred 1-4 d after ripening induction. MaPME2, MaPEL1, MaPEL2, MaPG4, MaXTH6, MaXTH8, MaXTH9, MaEXP1, MaEXP4, and MaEXP5 accumulated highly in the drop zone, contrary to MaXTH3 and MaXTH5, and MaEXP2 throughout ripening. For MaPG2, MaXET1, and MaXET2 genes, high accumulation in the drop zone was transient. The transcriptional data obtained from all genes examined suggested that finger drop and peel softening involved similar mechanisms. These findings also led to the proposal of a sequence of molecular events leading to finger drop and to suggest some candidates.002AParoi cellulaire01Cell wall01Pared celular01Gène02Gene02Gen02Fruit03Fruit03Fruto03Maturation04Ripening04Maduración04Botanique05Botany05Botánica05MusaNS10MusaNS10MusaNS10Banane15Banana15Plátano(fruta)15HydrolasesFE16HydrolasesFE16HydrolasesFE16XyloglucaneINC78ExpansineCD96ExpansinCD96ExpansinaCD96MusaceaeNSMusaceaeNSMusaceaeNSMonocotyledonesNSMonocotyledonesNSMonocotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSEnzymeFEEnzymeFEEnzimaFEPlante fruitière31Fruit crop31Planta frutal31173OTOOTOPASCAL 09-0239245 INISTExpression patterns of cell wall-modifying genes from banana during fruit ripening and in relationship with finger dropMBEGUIE-A-MBEGUIE (D.); HUBERT (O.); BAURENS (F. C.); MATSUMOTO (T.); CHILLET (M.); FILS-LYCAON (B.); SIDIBE-BOCS (S.)CIRAD, UMR QUALITROP/97130 Capesterre-Belle-Eau/Guadeloupe (1 aut.); CIRAD, UMR QUALISUD/97130 Capesterre-Belle-Eau/Guadeloupe (2 aut.); CIRAD, UMR DAP/34398 Montpellier/France (3 aut., 7 aut.); Rice Genome Research Program (RGP), National Institute of Agrobiological Sciences (NIAS)/Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries/Tsukuba, Ibaraki 305-8602/Japon (4 aut.); CIRAD, UMR QUALISUD/Sao Paulo, SP/Brésil (5 aut.); CIRAD, UMR OUALISUD/34398 Montpellier/France (2 aut., 5 aut.); Universidade de Sao Paulo, Dpto dos Alimentos e Nutriçao Experimental USP/FCF/São Paulo, SP/Brésil (5 aut.); INRA, UMR QUALITROP/97170 Petit-Bourg/Guadeloupe (6 aut.)
Publication en série; Papier de recherche; Niveau analytique
Journal of experimental botany; ISSN 0022-0957; Coden JEBOA6; Royaume-Uni; Da. 2009; Vol. 60; No. 7; Pp. 2021-2034; Bibl. 1 p.3/4AnglaisFew molecular studies have been devoted to the finger drop process that occurs during banana fruit ripening. Recent studies revealed the involvement of changes in the properties of cell wall polysaccharides in the pedicel rupture area. In this study, the expression of cell-wall modifying genes was monitored in peel tissue during post-harvest ripening of Cavendish banana fruit, at median area (control zone) and compared with that in the pedicel rupture area (drop zone). To this end, three pectin methylesterase (PME) and seven xyloglucan endotransglycosylase/hydrolase (XTH) genes were isolated. The accumulation of their mRNAs and those of polygalaturonase, expansin, and pectate lyase genes already isolated from banana were examined. During post-harvest ripening, transcripts of all genes were detected in both zones, but accumulated differentially. MaPME1, MaPG1, and MaXTH4 mRNA levels did not change in either zone. Levels of MaPME3 and MaPG3 mRNAs increased greatly only in the control zone and at the late ripening stages. For other genes, the main molecular changes occurred 1-4 d after ripening induction. MaPME2, MaPEL1, MaPEL2, MaPG4, MaXTH6, MaXTH8, MaXTH9, MaEXP1, MaEXP4, and MaEXP5 accumulated highly in the drop zone, contrary to MaXTH3 and MaXTH5, and MaEXP2 throughout ripening. For MaPG2, MaXET1, and MaXET2 genes, high accumulation in the drop zone was transient. The transcriptional data obtained from all genes examined suggested that finger drop and peel softening involved similar mechanisms. These findings also led to the proposal of a sequence of molecular events leading to finger drop and to suggest some candidates.002AParoi cellulaire; Gène; Fruit; Maturation; Botanique; Musa; Banane; Hydrolases; Xyloglucane; ExpansineMusaceae; Monocotyledones; Angiospermae; Spermatophyta; Enzyme; Plante fruitièreCell wall; Gene; Fruit; Ripening; Botany; Musa; Banana; Hydrolases; ExpansinMusaceae; Monocotyledones; Angiospermae; Spermatophyta; Enzyme; Fruit cropPared celular; Gen; Fruto; Maduración; Botánica; Musa; Plátano(fruta); Hydrolases; ExpansinaINIST-6923.35400018785403013009-0239245
000C27 A molecular modelling study to rationalize the regioselectivity in acylation of flavonoid glycosides catalyzed by Candida antarctica lipase BEduardo B. De OliveiraLaboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.Catherine HumeauLaboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.Latifa ChebilLaboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.Elaine R. MaiaLaboratorio de Estudos Estruturais Moleculares (LEEM), Instituto de Quimica, Universidade de Brasilia, CP 447870904-970, Brasília-DFBRA4 aut.François DehezEquipe de Dynamique des Assemblages Membranaires (EDAM), CNRS, Université Henri Poincaré, 756554500, Vandoeuvre-lès-NancyFRA5 aut.Bernard MaigretLaboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), CNRS, Université Henri Poincaré, BP 23954506, Vandoeuvre-lès-NancyFRA6 aut.Mohamed GhoulLaboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.Jean-Marc EngasserLaboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.09-02394582009PASCAL 09-0239458 INISTPascal:09-0239458001D521381-1177J. mol. catal., B Enzym.Journal of molecular catalysis. B, EnzymaticAcylationCatalysisFlavonoidGlycosideModelingRegioselectivityTriacylglycerol lipasecandida antarcticaModélisationRégiosélectivitéAcylationFlavonoïdeGlycosideCandida antarcticaCatalyseTriacylglycerol lipase
The regioselective behaviour of the Candida antarctica lipase B (CALB) towards two flavonoid glycosides, rutin and isoquercitrin, in the acetylation reaction was investigated through molecular modelling. A protocol constituted by a Monte Carlo-based docking procedure and classical force fields calculations was applied to find probable binding modes of the substrates inside the catalytic cavity and optimize the corresponding complexes. The analysis of these complexes allowed identifying productive ones (that means, those able to lead to the formation of the ester product) according to three parameters: (1) protein distortion ; (2) stability of hydrogen bond interactions with the oxyanion hole residues: (3) localization of hydroxyl groups with regard to the region comprised between the catalytic histidine and serine residues. Results showed that the aglycon part of both rutin and isoquercitrin was localized at the entrance of the binding pocket, stabilized by hydrogen bond and hydrophobic interactions. The sugar part of the flavonoids was placed close to the pocket bottom. In particular, only the primary 6"-OH of the isoquercitrin glucose and the secondary 4"'-OH of the rutin rhamnose were expected to be acetylated, as they were the only ones to stabilize simultaneously near to the catalytic histidine and the acetate bound to the catalytic serine. These findings are in accordance with experimental data and give a suitable explanation, at an atomic level, of the regioselectivity of CALB in the flavonoid glycosides acetylation.
1381-1177J. mol. catal., B Enzym.591-3A molecular modelling study to rationalize the regioselectivity in acylation of flavonoid glycosides catalyzed by Candida antarctica lipase BDE OLIVEIRA (Eduardo B.)HUMEAU (Catherine)CHEBIL (Latifa)MAIA (Elaine R.)DEHEZ (François)MAIGRET (Bernard)GHOUL (Mohamed)ENGASSER (Jean-Marc)Laboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye54500, Vandoeuvre-lès-NancyFRA1 aut.2 aut.3 aut.7 aut.8 aut.Laboratorio de Estudos Estruturais Moleculares (LEEM), Instituto de Quimica, Universidade de Brasilia, CP 447870904-970, Brasília-DFBRA4 aut.Equipe de Dynamique des Assemblages Membranaires (EDAM), CNRS, Université Henri Poincaré, 756554500, Vandoeuvre-lès-NancyFRA5 aut.Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), CNRS, Université Henri Poincaré, BP 23954506, Vandoeuvre-lès-NancyFRA6 aut.96-1052009ENGINIST17107B3540001878699701300000© 2009 INIST-CNRS. All rights reserved.48 ref.09-0239458PAJournal of molecular catalysis. B, EnzymaticNLDThe regioselective behaviour of the Candida antarctica lipase B (CALB) towards two flavonoid glycosides, rutin and isoquercitrin, in the acetylation reaction was investigated through molecular modelling. A protocol constituted by a Monte Carlo-based docking procedure and classical force fields calculations was applied to find probable binding modes of the substrates inside the catalytic cavity and optimize the corresponding complexes. The analysis of these complexes allowed identifying productive ones (that means, those able to lead to the formation of the ester product) according to three parameters: (1) protein distortion ; (2) stability of hydrogen bond interactions with the oxyanion hole residues: (3) localization of hydroxyl groups with regard to the region comprised between the catalytic histidine and serine residues. Results showed that the aglycon part of both rutin and isoquercitrin was localized at the entrance of the binding pocket, stabilized by hydrogen bond and hydrophobic interactions. The sugar part of the flavonoids was placed close to the pocket bottom. In particular, only the primary 6"-OH of the isoquercitrin glucose and the secondary 4"'-OH of the rutin rhamnose were expected to be acetylated, as they were the only ones to stabilize simultaneously near to the catalytic histidine and the acetate bound to the catalytic serine. These findings are in accordance with experimental data and give a suitable explanation, at an atomic level, of the regioselectivity of CALB in the flavonoid glycosides acetylation.002A31C06215Modélisation01Modeling01Modelización01Régiosélectivité02Regioselectivity02Regioselectividad02Acylation10Acylation10Acilación10Flavonoïde11Flavonoid11Flavonoide11Glycoside12Glycoside12Glicósido12Candida antarcticaNS13candida antarcticaNS13candida antarcticaNS13Catalyse19Catalysis19Catálisis19Triacylglycerol lipaseFE20Triacylglycerol lipaseFE20Triacylglycerol lipaseFE20Fungi ImperfectiNSFungi ImperfectiNSFungi ImperfectiNSFungiNSFungiNSFungiNSCarboxylic ester hydrolasesFECarboxylic ester hydrolasesFECarboxylic ester hydrolasesFEEsterasesFEEsterasesFEEsterasesFEHydrolasesFEHydrolasesFEHydrolasesFEEnzymeFEEnzymeFEEnzimaFE173OTOOTOPASCAL 09-0239458 INISTA molecular modelling study to rationalize the regioselectivity in acylation of flavonoid glycosides catalyzed by Candida antarctica lipase BDE OLIVEIRA (Eduardo B.); HUMEAU (Catherine); CHEBIL (Latifa); MAIA (Elaine R.); DEHEZ (François); MAIGRET (Bernard); GHOUL (Mohamed); ENGASSER (Jean-Marc)Laboratoire Biocatalyse Bioprocédés (LBB), ENSAIA-INPL, Nancy Université, 2 av. de la Forêt d'Haye/54500, Vandoeuvre-lès-Nancy/France (1 aut., 2 aut., 3 aut., 7 aut., 8 aut.); Laboratorio de Estudos Estruturais Moleculares (LEEM), Instituto de Quimica, Universidade de Brasilia, CP 4478/70904-970, Brasília-DF/Brésil (4 aut.); Equipe de Dynamique des Assemblages Membranaires (EDAM), CNRS, Université Henri Poincaré, 7565/54500, Vandoeuvre-lès-Nancy/France (5 aut.); Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), CNRS, Université Henri Poincaré, BP 239/54506, Vandoeuvre-lès-Nancy/France (6 aut.)
Publication en série; Niveau analytique
Journal of molecular catalysis. B, Enzymatic; ISSN 1381-1177; Pays-Bas; Da. 2009; Vol. 59; No. 1-3; Pp. 96-105; Bibl. 48 ref.AnglaisThe regioselective behaviour of the Candida antarctica lipase B (CALB) towards two flavonoid glycosides, rutin and isoquercitrin, in the acetylation reaction was investigated through molecular modelling. A protocol constituted by a Monte Carlo-based docking procedure and classical force fields calculations was applied to find probable binding modes of the substrates inside the catalytic cavity and optimize the corresponding complexes. The analysis of these complexes allowed identifying productive ones (that means, those able to lead to the formation of the ester product) according to three parameters: (1) protein distortion ; (2) stability of hydrogen bond interactions with the oxyanion hole residues: (3) localization of hydroxyl groups with regard to the region comprised between the catalytic histidine and serine residues. Results showed that the aglycon part of both rutin and isoquercitrin was localized at the entrance of the binding pocket, stabilized by hydrogen bond and hydrophobic interactions. The sugar part of the flavonoids was placed close to the pocket bottom. In particular, only the primary 6"-OH of the isoquercitrin glucose and the secondary 4"'-OH of the rutin rhamnose were expected to be acetylated, as they were the only ones to stabilize simultaneously near to the catalytic histidine and the acetate bound to the catalytic serine. These findings are in accordance with experimental data and give a suitable explanation, at an atomic level, of the regioselectivity of CALB in the flavonoid glycosides acetylation.002A31C06; 215Modélisation; Régiosélectivité; Acylation; Flavonoïde; Glycoside; Candida antarctica; Catalyse; Triacylglycerol lipaseFungi Imperfecti; Fungi; Carboxylic ester hydrolases; Esterases; Hydrolases; EnzymeModeling; Regioselectivity; Acylation; Flavonoid; Glycoside; candida antarctica; Catalysis; Triacylglycerol lipaseFungi Imperfecti; Fungi; Carboxylic ester hydrolases; Esterases; Hydrolases; EnzymeModelización; Regioselectividad; Acilación; Flavonoide; Glicósido; candida antarctica; Catálisis; Triacylglycerol lipaseINIST-17107B.35400018786997013009-0239458
000C28 Early versus Delayed Invasive Intervention in Acute Coronary SyndromesShamir R. MehtaPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Christopher B. GrangerDuke Clinical Research InstituteDurham, NCUSA2 aut.William E. BodenUniversity of Buffalo, Schools of Medicine and Public HealthBuffalo, NYUSA3 aut.Philippe Gabriel StegINSERM Unité 698, Université Paris 7, Assistance Publique-Hôpitaux de ParisParisFRA4 aut.Jean-Pierre BassandUniversity Hospital Jean MinjozBesançonFRA5 aut.David P. FaxonBrigham and Women's HospitalBostonUSA6 aut.Rizwan AfzalPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Susan ChrolaviciusPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Sanjit S. JollyPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Petr WidimskyUniversity Hos- pital Kralovske VinohradyPragueCZE10 aut.Alvaro AvezumDante Pazzanese Institute of CardiologySão PauloBRA11 aut.Hans-Jurgen RupprechtSecond Medical ClinicRüsselsheimDEU12 aut.JUN ZHUFu Wai HospitalBeijingCHN13 aut.Jacques ColSt. Luc UniversityLeuvenBEL14 aut.Madhu K. NatarajanPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Craig HorsmanPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Keith A. A. FoxRoyal Infirmary of Edinburgh, University of Edin- burghEdinburghGBR17 aut.Salim YusufPopulation Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.09-02399802009PASCAL 09-0239980 INISTPascal:09-0239980001D510028-4793N. Engl. j. med.The New England journal of medicineAcute coronary syndromeComparative studyDelayEarlyMedicinePrécoceEtude comparativeRetardMédecineForme invasiveSyndrome coronaire aigu
BACKGROUND Earlier trials have shown that a routine invasive strategy improves outcomes in patients with acute coronary syndromes without ST-segment elevation. However, the optimal timing of such intervention remains uncertain. METHODS We randomly assigned 3031 patients with acute coronary syndromes to undergo either routine early intervention (coronary angiography ≤24 hours after randomization) or delayed intervention (coronary angiography ≥36 hours after randomization). The primary outcome was a composite of death, myocardial infarction, or stroke at 6 months. A prespecified secondary outcome was death, myocardial infarction, or refractory ischemia at 6 months. RESULTS Coronary angiography was performed in 97.6% of patients in the early-intervention group (median time, 14 hours) and in 95.7% of patients in the delayed-intervention group (median time, 50 hours). At 6 months, the primary outcome occurred in 9.6% of patients in the early-intervention group, as compared with 11.3% in the delayed-intervention group (hazard ratio in the early-intervention group, 0.85; 95% confidence interval [CI], 0.68 to 1.06; P=0.15). There was a relative reduction of 28% in the secondary outcome of death, myocardial infarction, or refractory ischemia in the early-intervention group (9.5%), as compared with the delayed-intervention group (12.9%) (hazard ratio, 0.72; 95% CI, 0.58 to 0.89; P=0.003). Prespecified analyses showed that early intervention improved the primary outcome in the third of pa- tients who were at highest risk (hazard ratio, 0.65; 95% CI, 0.48 to 0.89) but not in the two thirds at low-to-intermediate risk (hazard ratio, 1.12; 95% CI, 0.81 to 1.56; P=0.01 for heterogeneity). CONCLUSIONS Early intervention did not differ greatly from delayed intervention in preventing the primary outcome, but it did reduce the rate of the composite secondary outcome of death, myocardial infarction, or refractory ischemia and was superior to delayed intervention in high-risk patients.
0028-4793NEJMAGN. Engl. j. med.36021Early versus Delayed Invasive Intervention in Acute Coronary SyndromesMEHTA (Shamir R.)GRANGER (Christopher B.)BODEN (William E.)GABRIEL STEG (Philippe)BASSAND (Jean-Pierre)FAXON (David P.)AFZAL (Rizwan)CHROLAVICIUS (Susan)JOLLY (Sanjit S.)WIDIMSKY (Petr)AVEZUM (Alvaro)RUPPRECHT (Hans-Jurgen)JUN ZHUCOL (Jacques)NATARAJAN (Madhu K.)HORSMAN (Craig)FOX (Keith A. A.)YUSUF (Salim)Population Health Research Institute, McMaster University and Hamilton Health SciencesHamilton, ONCAN1 aut.7 aut.8 aut.9 aut.15 aut.16 aut.18 aut.Duke Clinical Research InstituteDurham, NCUSA2 aut.University of Buffalo, Schools of Medicine and Public HealthBuffalo, NYUSA3 aut.INSERM Unité 698, Université Paris 7, Assistance Publique-Hôpitaux de ParisParisFRA4 aut.University Hospital Jean MinjozBesançonFRA5 aut.Brigham and Women's HospitalBostonUSA6 aut.University Hos- pital Kralovske VinohradyPragueCZE10 aut.Dante Pazzanese Institute of CardiologySão PauloBRA11 aut.Second Medical ClinicRüsselsheimDEU12 aut.Fu Wai HospitalBeijingCHN13 aut.St. Luc UniversityLeuvenBEL14 aut.Royal Infirmary of Edinburgh, University of Edin- burghEdinburghGBR17 aut.TIMACS InvestigatorsINC2165-21752009ENGINIST60133540001884474700400000© 2009 INIST-CNRS. All rights reserved.27 ref.09-0239980PAThe New England journal of medicineUSABACKGROUND Earlier trials have shown that a routine invasive strategy improves outcomes in patients with acute coronary syndromes without ST-segment elevation. However, the optimal timing of such intervention remains uncertain. METHODS We randomly assigned 3031 patients with acute coronary syndromes to undergo either routine early intervention (coronary angiography ≤24 hours after randomization) or delayed intervention (coronary angiography ≥36 hours after randomization). The primary outcome was a composite of death, myocardial infarction, or stroke at 6 months. A prespecified secondary outcome was death, myocardial infarction, or refractory ischemia at 6 months. RESULTS Coronary angiography was performed in 97.6% of patients in the early-intervention group (median time, 14 hours) and in 95.7% of patients in the delayed-intervention group (median time, 50 hours). At 6 months, the primary outcome occurred in 9.6% of patients in the early-intervention group, as compared with 11.3% in the delayed-intervention group (hazard ratio in the early-intervention group, 0.85; 95% confidence interval [CI], 0.68 to 1.06; P=0.15). There was a relative reduction of 28% in the secondary outcome of death, myocardial infarction, or refractory ischemia in the early-intervention group (9.5%), as compared with the delayed-intervention group (12.9%) (hazard ratio, 0.72; 95% CI, 0.58 to 0.89; P=0.003). Prespecified analyses showed that early intervention improved the primary outcome in the third of pa- tients who were at highest risk (hazard ratio, 0.65; 95% CI, 0.48 to 0.89) but not in the two thirds at low-to-intermediate risk (hazard ratio, 1.12; 95% CI, 0.81 to 1.56; P=0.01 for heterogeneity). CONCLUSIONS Early intervention did not differ greatly from delayed intervention in preventing the primary outcome, but it did reduce the rate of the composite secondary outcome of death, myocardial infarction, or refractory ischemia and was superior to delayed intervention in high-risk patients.002B01002B12A03Précoce02Early02Precoz02Etude comparative03Comparative study03Estudio comparativo03Retard05Delay05Retraso05Médecine06Medicine06Medicina06Forme invasiveINC86Syndrome coronaire aiguCD96Acute coronary syndromeCD96Síndrome coronario agudoCD96Pathologie de l'appareil circulatoire37Cardiovascular disease37Aparato circulatorio patología37Cardiopathie coronaire38Coronary heart disease38Cardiopatía coronaria38Pathologie du myocarde39Myocardial disease39Miocardio patología39173OTOOTOPASCAL 09-0239980 INISTEarly versus Delayed Invasive Intervention in Acute Coronary SyndromesMEHTA (Shamir R.); GRANGER (Christopher B.); BODEN (William E.); GABRIEL STEG (Philippe); BASSAND (Jean-Pierre); FAXON (David P.); AFZAL (Rizwan); CHROLAVICIUS (Susan); JOLLY (Sanjit S.); WIDIMSKY (Petr); AVEZUM (Alvaro); RUPPRECHT (Hans-Jurgen); JUN ZHU; COL (Jacques); NATARAJAN (Madhu K.); HORSMAN (Craig); FOX (Keith A. A.); YUSUF (Salim)Population Health Research Institute, McMaster University and Hamilton Health Sciences/Hamilton, ON/Canada (1 aut., 7 aut., 8 aut., 9 aut., 15 aut., 16 aut., 18 aut.); Duke Clinical Research Institute/Durham, NC/Etats-Unis (2 aut.); University of Buffalo, Schools of Medicine and Public Health/Buffalo, NY/Etats-Unis (3 aut.); INSERM Unité 698, Université Paris 7, Assistance Publique-Hôpitaux de Paris/Paris/France (4 aut.); University Hospital Jean Minjoz/Besançon/France (5 aut.); Brigham and Women's Hospital/Boston/Etats-Unis (6 aut.); University Hos- pital Kralovske Vinohrady/Prague/Tchèque, République (10 aut.); Dante Pazzanese Institute of Cardiology/São Paulo/Brésil (11 aut.); Second Medical Clinic/Rüsselsheim/Allemagne (12 aut.); Fu Wai Hospital/Beijing/Chine (13 aut.); St. Luc University/Leuven/Belgique (14 aut.); Royal Infirmary of Edinburgh, University of Edin- burgh/Edinburgh/Royaume-Uni (17 aut.)
Publication en série; Niveau analytique
The New England journal of medicine; ISSN 0028-4793; Coden NEJMAG; Etats-Unis; Da. 2009; Vol. 360; No. 21; Pp. 2165-2175; Bibl. 27 ref.AnglaisBACKGROUND Earlier trials have shown that a routine invasive strategy improves outcomes in patients with acute coronary syndromes without ST-segment elevation. However, the optimal timing of such intervention remains uncertain. METHODS We randomly assigned 3031 patients with acute coronary syndromes to undergo either routine early intervention (coronary angiography ≤24 hours after randomization) or delayed intervention (coronary angiography ≥36 hours after randomization). The primary outcome was a composite of death, myocardial infarction, or stroke at 6 months. A prespecified secondary outcome was death, myocardial infarction, or refractory ischemia at 6 months. RESULTS Coronary angiography was performed in 97.6% of patients in the early-intervention group (median time, 14 hours) and in 95.7% of patients in the delayed-intervention group (median time, 50 hours). At 6 months, the primary outcome occurred in 9.6% of patients in the early-intervention group, as compared with 11.3% in the delayed-intervention group (hazard ratio in the early-intervention group, 0.85; 95% confidence interval [CI], 0.68 to 1.06; P=0.15). There was a relative reduction of 28% in the secondary outcome of death, myocardial infarction, or refractory ischemia in the early-intervention group (9.5%), as compared with the delayed-intervention group (12.9%) (hazard ratio, 0.72; 95% CI, 0.58 to 0.89; P=0.003). Prespecified analyses showed that early intervention improved the primary outcome in the third of pa- tients who were at highest risk (hazard ratio, 0.65; 95% CI, 0.48 to 0.89) but not in the two thirds at low-to-intermediate risk (hazard ratio, 1.12; 95% CI, 0.81 to 1.56; P=0.01 for heterogeneity). CONCLUSIONS Early intervention did not differ greatly from delayed intervention in preventing the primary outcome, but it did reduce the rate of the composite secondary outcome of death, myocardial infarction, or refractory ischemia and was superior to delayed intervention in high-risk patients.002B01; 002B12A03Précoce; Etude comparative; Retard; Médecine; Forme invasive; Syndrome coronaire aiguPathologie de l'appareil circulatoire; Cardiopathie coronaire; Pathologie du myocardeEarly; Comparative study; Delay; Medicine; Acute coronary syndromeCardiovascular disease; Coronary heart disease; Myocardial diseasePrecoz; Estudio comparativo; Retraso; Medicina; Síndrome coronario agudoINIST-6013.35400018844747004009-0239980
000C29 Formulation of the standard model in terms of spinor fieldsD. SpehlerIPHC-DRS, ULP, CNRS in2p3, 23 rue du Loess67037, StrasbourgFRA1 aut.G. C. MarquesInstituto de Física, Universidade de São Paulo, C.P. 6631805315-970 São Paulo, SPBRA2 aut.09-02407132009PASCAL 09-0240713 INISTPascal:09-0240713001D501434-6044The European physical journal. C, Particles and fieldsAsymmetry parameterBoson fieldElementary particlesFermion fieldFermionsIntermediate bosonsInternal symmetryMathematical physicsSU(3) theorySU-2 groupsSpinor fieldsStandard modelSymmetry groupsModèle standardChamp spinorielChamp fermionSymétrie interneGroupe symétrieChamp bosonThéorie SU(3)Groupe SU(2)Boson intermédiaireFermionParamètre asymétriePhysique mathématiqueParticule élémentaire
We propose an alternative formulation of the Standard Model which reduces the number of free parameters. In our framework, fermionic fields are assigned to fundamental representations of the Lorentz and the internal symmetry groups, whereas bosonic field variables transform as direct products of fundamental representations of all symmetry groups. This allows us to reduce the number of fundamental symmetries. We formulate the Standard Model by considering the SU(3) and SU(2) symmetry groups as the underlying symmetries of the fundamental interactions. This allows us to suggest a model, for the description of the interactions of the intermediate bosons among themselves and interactions of fermions, that makes use of just two parameters. One parameter characterizes the symmetric phase, whereas the other parameter (the asymmetry parameter) gives the breakdown strength of the symmetries. All coupling strengths of the Standard Model are then derived in terms of these two parameters. In particular, we show that all fermionic electric charges result from symmetry breakdown.
1434-6044611Formulation of the standard model in terms of spinor fieldsSPEHLER (D.)MARQUES (G. C.)IPHC-DRS, ULP, CNRS in2p3, 23 rue du Loess67037, StrasbourgFRA1 aut.Instituto de Física, Universidade de São Paulo, C.P. 6631805315-970 São Paulo, SPBRA2 aut.75-922009ENGINIST271523540001862557500600000© 2009 INIST-CNRS. All rights reserved.43 ref.09-0240713PAThe European physical journal. C, Particles and fieldsDEUWe propose an alternative formulation of the Standard Model which reduces the number of free parameters. In our framework, fermionic fields are assigned to fundamental representations of the Lorentz and the internal symmetry groups, whereas bosonic field variables transform as direct products of fundamental representations of all symmetry groups. This allows us to reduce the number of fundamental symmetries. We formulate the Standard Model by considering the SU(3) and SU(2) symmetry groups as the underlying symmetries of the fundamental interactions. This allows us to suggest a model, for the description of the interactions of the intermediate bosons among themselves and interactions of fermions, that makes use of just two parameters. One parameter characterizes the symmetric phase, whereas the other parameter (the asymmetry parameter) gives the breakdown strength of the symmetries. All coupling strengths of the Standard Model are then derived in terms of these two parameters. In particular, we show that all fermionic electric charges result from symmetry breakdown.001B10Modèle standard26Standard model26Champ spinoriel27Spinor fields27Champ fermion28Fermion field28Campo fermiónico28Symétrie interne29Internal symmetry29Simetría interna29Groupe symétrie30Symmetry groups30Champ boson31Boson field31Campo bosónico31Théorie SU(3)32SU(3) theory32Groupe SU(2)33SU-2 groups33Boson intermédiaire34Intermediate bosons34Fermion35Fermions35Paramètre asymétrie36Asymmetry parameter36Parámetro asimetría36Physique mathématique37Mathematical physics37Particule élémentaire38Elementary particles38182OTOOTOPASCAL 09-0240713 INISTFormulation of the standard model in terms of spinor fieldsSPEHLER (D.); MARQUES (G. C.)IPHC-DRS, ULP, CNRS in2p3, 23 rue du Loess/67037, Strasbourg/France (1 aut.); Instituto de Física, Universidade de São Paulo, C.P. 66318/05315-970 São Paulo, SP/Brésil (2 aut.)
Publication en série; Niveau analytique
The European physical journal. C, Particles and fields; ISSN 1434-6044; Allemagne; Da. 2009; Vol. 61; No. 1; Pp. 75-92; Bibl. 43 ref.AnglaisWe propose an alternative formulation of the Standard Model which reduces the number of free parameters. In our framework, fermionic fields are assigned to fundamental representations of the Lorentz and the internal symmetry groups, whereas bosonic field variables transform as direct products of fundamental representations of all symmetry groups. This allows us to reduce the number of fundamental symmetries. We formulate the Standard Model by considering the SU(3) and SU(2) symmetry groups as the underlying symmetries of the fundamental interactions. This allows us to suggest a model, for the description of the interactions of the intermediate bosons among themselves and interactions of fermions, that makes use of just two parameters. One parameter characterizes the symmetric phase, whereas the other parameter (the asymmetry parameter) gives the breakdown strength of the symmetries. All coupling strengths of the Standard Model are then derived in terms of these two parameters. In particular, we show that all fermionic electric charges result from symmetry breakdown.001B10Modèle standard; Champ spinoriel; Champ fermion; Symétrie interne; Groupe symétrie; Champ boson; Théorie SU(3); Groupe SU(2); Boson intermédiaire; Fermion; Paramètre asymétrie; Physique mathématique; Particule élémentaireStandard model; Spinor fields; Fermion field; Internal symmetry; Symmetry groups; Boson field; SU(3) theory; SU-2 groups; Intermediate bosons; Fermions; Asymmetry parameter; Mathematical physics; Elementary particlesCampo fermiónico; Simetría interna; Campo bosónico; Parámetro asimetríaINIST-27152.35400018625575006009-0240713
000C30 Serum levels of tumour necrosis factor family members a proliferation-inducing ligand (APRIL) and B lymphocyte stimulator (BLyS) are inversely correlated in systemic lupus erythematosusJ. MorelService d'Immuno-Rhumatologie Université Montpellier 1 et CHU MontpellierMontpellierFRA1 aut.2 aut.6 aut.Institut de Génétique Moléculaire de Montpellier, CNRS UMR5535MontpellierFRA1 aut.8 aut.C. RoubilleService d'Immuno-Rhumatologie Université Montpellier 1 et CHU MontpellierMontpellierFRA1 aut.2 aut.6 aut.L. PlanellesDepartment of Immunology and Oncology, Centro Nacional de Biotecnologia/CSICMadridESP3 aut.5 aut.C. RochaLaboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz FoundationRio de JaneiroBRA4 aut.L. FernandezDepartment of Immunology and Oncology, Centro Nacional de Biotecnologia/CSICMadridESP3 aut.5 aut.C. LukasService d'Immuno-Rhumatologie Université Montpellier 1 et CHU MontpellierMontpellierFRA1 aut.2 aut.6 aut.M. HahneB. CombeInstitut de Génétique Moléculaire de Montpellier, CNRS UMR5535MontpellierFRA1 aut.8 aut.09-02436662009PASCAL 09-0243666 INISTPascal:09-0243666001D490003-4967Ann. rheum. dis.Annals of the rheumatic diseasesB-LymphocyteFamily studyLigandRheumatologySerumSystemic lupus erythematosusTumor necrosis factorLupus érythémateux disséminéSérumFacteur nécrose tumoraleEtude familialeLigandLymphocyte BRhumatologie
Objective: To determine whether serum levels of a proliferation-inducing ligand (APRIL) are altered in patients with systemic lupus erythematosus (SLE), and correlate with disease parameters. Methods: Clinical and biological parameters were analysed for 43 patients that fulfilled American College of Rheumatology (ACR) criteria for SLE classification and were positive for anti-double-stranded DNA (dsDNA) antibodies at least once in their medical records. Tests included measurement of serum levels of the tumour necrosis factor (TNF) family members APRIL and B lymphocyte stimulator (BLyS; a cytokine shown to promote SLE disease). Results: Median APRIL levels were elevated in patients with SLE compared to patients with osteoarthritis and healthy controls, but did not correlate with the SLE Disease Activity Index (SLEDAI). APRIL serum levels showed an inverse correlation with BLyS serum levels (r = -0.339; p = 0.03). For patients with SLE with positive anti-dsDNA titres (>40 arbitrary units (AU)/ml) at inclusion (n = 25), circulating APRIL was inversely correlated with BLyS levels (r = -0.465; p = 0.022) and anti-dsDNA antibody titres (r = -0.411; p = 0.046). In a follow-up study at their second visit, 27 patients showed an inverse correlation of APRIL serum levels with BLyS (r = -0.398; p = 0.03) as well as with anti-dsDNA (r = -0.408; p = 0.03) titres and SLEDAI (r = -0.408; p = 0.01). Conclusion: The inverse correlation observed between APRIL and BLyS suggests that APRIL acts as a protective factor. APRIL and BLyS may thus have opposite roles in SLE, which must be considered when defining therapeutic applications of these cytokines.
0003-4967ARDIAOAnn. rheum. dis.686Serum levels of tumour necrosis factor family members a proliferation-inducing ligand (APRIL) and B lymphocyte stimulator (BLyS) are inversely correlated in systemic lupus erythematosusMOREL (J.)ROUBILLE (C.)PLANELLES (L.)ROCHA (C.)FERNANDEZ (L.)LUKAS (C.)HAHNE (M.)COMBE (B.)Service d'Immuno-Rhumatologie Université Montpellier 1 et CHU MontpellierMontpellierFRA1 aut.2 aut.6 aut.Institut de Génétique Moléculaire de Montpellier, CNRS UMR5535MontpellierFRA1 aut.8 aut.Department of Immunology and Oncology, Centro Nacional de Biotecnologia/CSICMadridESP3 aut.5 aut.Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz FoundationRio de JaneiroBRA4 aut.997-10022009ENGINIST63813540001862309103800000© 2009 INIST-CNRS. All rights reserved.23 ref.09-0243666PAAnnals of the rheumatic diseasesGBRObjective: To determine whether serum levels of a proliferation-inducing ligand (APRIL) are altered in patients with systemic lupus erythematosus (SLE), and correlate with disease parameters. Methods: Clinical and biological parameters were analysed for 43 patients that fulfilled American College of Rheumatology (ACR) criteria for SLE classification and were positive for anti-double-stranded DNA (dsDNA) antibodies at least once in their medical records. Tests included measurement of serum levels of the tumour necrosis factor (TNF) family members APRIL and B lymphocyte stimulator (BLyS; a cytokine shown to promote SLE disease). Results: Median APRIL levels were elevated in patients with SLE compared to patients with osteoarthritis and healthy controls, but did not correlate with the SLE Disease Activity Index (SLEDAI). APRIL serum levels showed an inverse correlation with BLyS serum levels (r = -0.339; p = 0.03). For patients with SLE with positive anti-dsDNA titres (>40 arbitrary units (AU)/ml) at inclusion (n = 25), circulating APRIL was inversely correlated with BLyS levels (r = -0.465; p = 0.022) and anti-dsDNA antibody titres (r = -0.411; p = 0.046). In a follow-up study at their second visit, 27 patients showed an inverse correlation of APRIL serum levels with BLyS (r = -0.398; p = 0.03) as well as with anti-dsDNA (r = -0.408; p = 0.03) titres and SLEDAI (r = -0.408; p = 0.01). Conclusion: The inverse correlation observed between APRIL and BLyS suggests that APRIL acts as a protective factor. APRIL and BLyS may thus have opposite roles in SLE, which must be considered when defining therapeutic applications of these cytokines.002B15002B07Lupus érythémateux disséminéNM01Systemic lupus erythematosusNM01Lupus eritematoso sistémicoNM01Sérum07Serum07Suero07Facteur nécrose tumorale08Tumor necrosis factor08Factor necrosis tumoral08Etude familiale09Family study09Estudio familiar09Ligand13Ligand13Ligando13Lymphocyte B14B-Lymphocyte14Linfocito B14Rhumatologie15Rheumatology15Reumatología15Maladie autoimmune37Autoimmune disease37Enfermedad autoinmune37Maladie de système38Systemic disease38Enfermedad sistémica38Pathologie de la peau39Skin disease39Piel patología39Pathologie du tissu conjonctif40Connective tissue disease40Tejido conjuntivo patología40Immunopathologie41Immunopathology41Inmunopatología41182OTOOTOPASCAL 09-0243666 INISTSerum levels of tumour necrosis factor family members a proliferation-inducing ligand (APRIL) and B lymphocyte stimulator (BLyS) are inversely correlated in systemic lupus erythematosusMOREL (J.); ROUBILLE (C.); PLANELLES (L.); ROCHA (C.); FERNANDEZ (L.); LUKAS (C.); HAHNE (M.); COMBE (B.)Service d'Immuno-Rhumatologie Université Montpellier 1 et CHU Montpellier/Montpellier/France (1 aut., 2 aut., 6 aut.); Institut de Génétique Moléculaire de Montpellier, CNRS UMR5535/Montpellier/France (1 aut., 8 aut.); Department of Immunology and Oncology, Centro Nacional de Biotecnologia/CSIC/Madrid/Espagne (3 aut., 5 aut.); Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation/Rio de Janeiro/Brésil (4 aut.)
Publication en série; Niveau analytique
Annals of the rheumatic diseases; ISSN 0003-4967; Coden ARDIAO; Royaume-Uni; Da. 2009; Vol. 68; No. 6; Pp. 997-1002; Bibl. 23 ref.AnglaisObjective: To determine whether serum levels of a proliferation-inducing ligand (APRIL) are altered in patients with systemic lupus erythematosus (SLE), and correlate with disease parameters. Methods: Clinical and biological parameters were analysed for 43 patients that fulfilled American College of Rheumatology (ACR) criteria for SLE classification and were positive for anti-double-stranded DNA (dsDNA) antibodies at least once in their medical records. Tests included measurement of serum levels of the tumour necrosis factor (TNF) family members APRIL and B lymphocyte stimulator (BLyS; a cytokine shown to promote SLE disease). Results: Median APRIL levels were elevated in patients with SLE compared to patients with osteoarthritis and healthy controls, but did not correlate with the SLE Disease Activity Index (SLEDAI). APRIL serum levels showed an inverse correlation with BLyS serum levels (r = -0.339; p = 0.03). For patients with SLE with positive anti-dsDNA titres (>40 arbitrary units (AU)/ml) at inclusion (n = 25), circulating APRIL was inversely correlated with BLyS levels (r = -0.465; p = 0.022) and anti-dsDNA antibody titres (r = -0.411; p = 0.046). In a follow-up study at their second visit, 27 patients showed an inverse correlation of APRIL serum levels with BLyS (r = -0.398; p = 0.03) as well as with anti-dsDNA (r = -0.408; p = 0.03) titres and SLEDAI (r = -0.408; p = 0.01). Conclusion: The inverse correlation observed between APRIL and BLyS suggests that APRIL acts as a protective factor. APRIL and BLyS may thus have opposite roles in SLE, which must be considered when defining therapeutic applications of these cytokines.002B15; 002B07Lupus érythémateux disséminé; Sérum; Facteur nécrose tumorale; Etude familiale; Ligand; Lymphocyte B; RhumatologieMaladie autoimmune; Maladie de système; Pathologie de la peau; Pathologie du tissu conjonctif; ImmunopathologieSystemic lupus erythematosus; Serum; Tumor necrosis factor; Family study; Ligand; B-Lymphocyte; RheumatologyAutoimmune disease; Systemic disease; Skin disease; Connective tissue disease; ImmunopathologyLupus eritematoso sistémico; Suero; Factor necrosis tumoral; Estudio familiar; Ligando; Linfocito B; ReumatologíaINIST-6381.35400018623091038009-0243666
000C31 Soil morphological control on saline and freshwater lake hydrogeochemistry in the Pantanal of Nhecolândia, BrazilL. BarbieroUniversité de Toulouse; UPS (SVT-OMP); LMTG; 14 Av, Edouard Belin31400 ToulouseFRA1 aut.IRD; LMTG31400 ToulouseFRA1 aut.A. Filho RezendeUFMS, Departamento de Geografia, Campus de Nova Andradina, Av. Eurico Soares Andrade 102079750-000, Nova Andradina-MSBRA2 aut.Laboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.S. A. C. FurquimLaboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.S. FurianLaboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.A. Y. SakamotoUFMS, Departamento de Geografia, Campus de Três Lagoas, Av. Ranulfo Marques Leal 348479600-000, Três Lagoas-MSBRA5 aut.V. VallesLaboratoire d'Hydrogéologie, Université d'Avignon et des Pays du Vaucluse, 74 rue Louis Pasteur84029 AvignonFRA6 aut.R. C. GrahamSoil and Water Sciences Program, Department of Environmental Sciences, University of CaliforniaRiverside, CA 92521-0424USA7 aut.M. FortUMR 8586 PRODIG, UFR G.H.S.S., Université Denis-Diderot (Paris 7), Case 70012 Place Jussieu75251 ParisFRA8 aut.R. P. D. FerreiraLaboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.J. P. Neto QueirozLaboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.09-02438912008PASCAL 09-0243891 INISTPascal:09-0243891001D480016-7061Geoderma : (Amst.)Geoderma : (Amsterdam)BrazilChemical solutionClimatic conditionSaline solutionSoil solutionTop soilVitreous silicaacid soilsaerial photographycalcitedestructionelectrical conductivityfresh waterhydrochemistrylakesloamminor elementssalinitysilicatessolid phasewater qualitywetlandsSalinitéEau douceLacPhotographie aérienneConductivité électriqueHydrochimieCondition climatiqueZone humideLimonCalciteSilicateSilice vitreuseCouche arableSolution salineElément mineurQualité eauPhase solideDestructionSol acideSolution édaphiqueSolution chimiquePantanalBrésil
Joint pedological, geochemical, hydrological and geophysical investigations were performed to study the coexistence of saline and freshwater lakes in close proximity and similar climatic conditions in the Nhecolândia region, Pantanal wetlands in Brazil. The saline lakes are concentrically surrounded by green sandy loam horizons, which cause differential hydrological regimes. Mg-calcite, K-silicates, and amorphous silica precipitate in the soil cover, whereas Mg-silicates and more soluble Na-carbonates are concentrated in the topsoil along the shore of the saline lake. In saline solutions, some minor elements (As, Se) reach values above the water quality recommendations, whereas others are controlled and incorporated in solid phases (Ba, Sr). Locally, the destruction of the sandy loam horizons generates very acidic soil solution (pH -3.5) through a process not yet understood. The soil distributions indicate that some freshwater lakes are former saline lakes. They are invaded by freshwater after destruction of the sandy loam green horizons, then the freshwater becomes enriched in K+, SO2-4, Fe, Al, and a stream of minor and trace elements. The formation of these green sandy loam horizons in the saline environment and their destruction in the non-saline one emphasizes the dynamic nature of this environment.
0016-7061GEDMABGeoderma : (Amst.)1481Soil morphological control on saline and freshwater lake hydrogeochemistry in the Pantanal of Nhecolândia, BrazilBARBIERO (L.)REZENDE (A. FILHO)FURQUIM (S. A. C.)FURIAN (S.)SAKAMOTO (A. Y.)VALLES (V.)GRAHAM (R. C.)FORT (M.)FERREIRA (R. P. D.)QUEIROZ (J. P. NETO)Université de Toulouse; UPS (SVT-OMP); LMTG; 14 Av, Edouard Belin31400 ToulouseFRA1 aut.IRD; LMTG31400 ToulouseFRA1 aut.UFMS, Departamento de Geografia, Campus de Nova Andradina, Av. Eurico Soares Andrade 102079750-000, Nova Andradina-MSBRA2 aut.Laboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 810505508-900, Sao PauloBRA2 aut.3 aut.4 aut.9 aut.10 aut.UFMS, Departamento de Geografia, Campus de Três Lagoas, Av. Ranulfo Marques Leal 348479600-000, Três Lagoas-MSBRA5 aut.Laboratoire d'Hydrogéologie, Université d'Avignon et des Pays du Vaucluse, 74 rue Louis Pasteur84029 AvignonFRA6 aut.Soil and Water Sciences Program, Department of Environmental Sciences, University of CaliforniaRiverside, CA 92521-0424USA7 aut.UMR 8586 PRODIG, UFR G.H.S.S., Université Denis-Diderot (Paris 7), Case 70012 Place Jussieu75251 ParisFRA8 aut.91-1062008ENGINIST36073540001873652101200000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0243891PPRAGeoderma : (Amsterdam)NLDJoint pedological, geochemical, hydrological and geophysical investigations were performed to study the coexistence of saline and freshwater lakes in close proximity and similar climatic conditions in the Nhecolândia region, Pantanal wetlands in Brazil. The saline lakes are concentrically surrounded by green sandy loam horizons, which cause differential hydrological regimes. Mg-calcite, K-silicates, and amorphous silica precipitate in the soil cover, whereas Mg-silicates and more soluble Na-carbonates are concentrated in the topsoil along the shore of the saline lake. In saline solutions, some minor elements (As, Se) reach values above the water quality recommendations, whereas others are controlled and incorporated in solid phases (Ba, Sr). Locally, the destruction of the sandy loam horizons generates very acidic soil solution (pH -3.5) through a process not yet understood. The soil distributions indicate that some freshwater lakes are former saline lakes. They are invaded by freshwater after destruction of the sandy loam green horizons, then the freshwater becomes enriched in K+, SO2-4, Fe, Al, and a stream of minor and trace elements. The formation of these green sandy loam horizons in the saline environment and their destruction in the non-saline one emphasizes the dynamic nature of this environment.002A32001E01P03001E01B02226C03220B02Salinité01salinity01Salinidad01Eau douce02fresh water02Agua dulce02Lac03lakes03Lago03Photographie aérienne04aerial photography04Fotografía aérea04Conductivité électrique05electrical conductivity05Conductividad eléctrica05Hydrochimie06hydrochemistry06Hidroquímica06Condition climatique08Climatic condition08Condición climática08Zone humide09wetlands09Terreno húmedo09Limon10loam10Lodo10CalciteNZ11calciteNZ11CalcitaNZ11SilicateNZ12silicatesNZ12SilicatoNZ12Silice vitreuse13Vitreous silica13Sílice vitrosa13Couche arableNT15Top soilNT15Capa arableNT15Solution saline16Saline solution16Solución salina16Elément mineur17minor elements17Qualité eau18water quality18Calidad agua18Phase solide20solid phase20Fase sólida20Destruction21destruction21Sol acideNT22acid soilsNT22Solution édaphique23Soil solution23Solución suelo23Solution chimique24Chemical solution24Solución química24PantanalINC52BrésilNG61BrazilNG61BrasilNG61CarbonateNZcarbonatesNZCarbonatoNZAmérique du Sud564South America564America del sur564182PASCAL 09-0243891 INISTSoil morphological control on saline and freshwater lake hydrogeochemistry in the Pantanal of Nhecolândia, BrazilBARBIERO (L.); REZENDE (A. FILHO); FURQUIM (S. A. C.); FURIAN (S.); SAKAMOTO (A. Y.); VALLES (V.); GRAHAM (R. C.); FORT (M.); FERREIRA (R. P. D.); QUEIROZ (J. P. NETO)Université de Toulouse; UPS (SVT-OMP); LMTG; 14 Av, Edouard Belin/31400 Toulouse/France (1 aut.); IRD; LMTG/31400 Toulouse/France (1 aut.); UFMS, Departamento de Geografia, Campus de Nova Andradina, Av. Eurico Soares Andrade 1020/79750-000, Nova Andradina-MS/Brésil (2 aut.); Laboratório de Pedologia, Departamento de Geografia, Universidade de Sao Paulo C.P. 8105/05508-900, Sao Paulo/Brésil (2 aut., 3 aut., 4 aut., 9 aut., 10 aut.); UFMS, Departamento de Geografia, Campus de Três Lagoas, Av. Ranulfo Marques Leal 3484/79600-000, Três Lagoas-MS/Brésil (5 aut.); Laboratoire d'Hydrogéologie, Université d'Avignon et des Pays du Vaucluse, 74 rue Louis Pasteur/84029 Avignon/France (6 aut.); Soil and Water Sciences Program, Department of Environmental Sciences, University of California/Riverside, CA 92521-0424/Etats-Unis (7 aut.); UMR 8586 PRODIG, UFR G.H.S.S., Université Denis-Diderot (Paris 7), Case 70012 Place Jussieu/75251 Paris/France (8 aut.)
Publication en série; Papier de recherche; Niveau analytique
Geoderma : (Amsterdam); ISSN 0016-7061; Coden GEDMAB; Pays-Bas; Da. 2008; Vol. 148; No. 1; Pp. 91-106; Bibl. 3/4 p.AnglaisJoint pedological, geochemical, hydrological and geophysical investigations were performed to study the coexistence of saline and freshwater lakes in close proximity and similar climatic conditions in the Nhecolândia region, Pantanal wetlands in Brazil. The saline lakes are concentrically surrounded by green sandy loam horizons, which cause differential hydrological regimes. Mg-calcite, K-silicates, and amorphous silica precipitate in the soil cover, whereas Mg-silicates and more soluble Na-carbonates are concentrated in the topsoil along the shore of the saline lake. In saline solutions, some minor elements (As, Se) reach values above the water quality recommendations, whereas others are controlled and incorporated in solid phases (Ba, Sr). Locally, the destruction of the sandy loam horizons generates very acidic soil solution (pH -3.5) through a process not yet understood. The soil distributions indicate that some freshwater lakes are former saline lakes. They are invaded by freshwater after destruction of the sandy loam green horizons, then the freshwater becomes enriched in K+, SO2-4, Fe, Al, and a stream of minor and trace elements. The formation of these green sandy loam horizons in the saline environment and their destruction in the non-saline one emphasizes the dynamic nature of this environment.002A32; 001E01P03; 001E01B02; 226C03; 220B02Salinité; Eau douce; Lac; Photographie aérienne; Conductivité électrique; Hydrochimie; Condition climatique; Zone humide; Limon; Calcite; Silicate; Silice vitreuse; Couche arable; Solution saline; Elément mineur; Qualité eau; Phase solide; Destruction; Sol acide; Solution édaphique; Solution chimique; Pantanal; BrésilCarbonate; Amérique du Sudsalinity; fresh water; lakes; aerial photography; electrical conductivity; hydrochemistry; Climatic condition; wetlands; loam; calcite; silicates; Vitreous silica; Top soil; Saline solution; minor elements; water quality; solid phase; destruction; acid soils; Soil solution; Chemical solution; Brazilcarbonates; South AmericaSalinidad; Agua dulce; Lago; Fotografía aérea; Conductividad eléctrica; Hidroquímica; Condición climática; Terreno húmedo; Lodo; Calcita; Silicato; Sílice vitrosa; Capa arable; Solución salina; Calidad agua; Fase sólida; Solución suelo; Solución química; BrasilINIST-3607.35400018736521012009-0243891
000C32 3-D soil-resistance maps in the presence of a strong vertical trendDaiane FolleMining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 10491501-970, Porto Alegre, RSBRA1 aut.2 aut.4 aut.5 aut.Joao Felipe C. Leite CostaMining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 10491501-970, Porto Alegre, RSBRA1 aut.2 aut.4 aut.5 aut.Didier RenardCentre de Geostatistique de l'Ecole des Mines de Paris, 35 Rue St. Honoré77300, FontainebleauFRA3 aut.Jair Carlos KoppeMining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 10491501-970, Porto Alegre, RSBRA1 aut.2 aut.4 aut.5 aut.André C. ZinganoMining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 10491501-970, Porto Alegre, RSBRA1 aut.2 aut.4 aut.5 aut.09-02450942008PASCAL 09-0245094 INISTPascal:09-0245094001D470013-7952Eng. geol.Engineering geologyCartographyData analysisGeostatisticsGeotechnicsPenetration testProperty of soilSoil testStrength of materialsStructural analysisEssai solCaractéristique solRésistance matériauGéotechniqueEssai pénétrationAnalyse donnéeCartographieAnalyse structuraleGéostatistique
Knowledge of the distribution of soil types and the behavior of the corresponding geotechnical properties is relevant for various civil engineering applications. This information is needed, among others, for city planning, environmental management, determination of slope stability, and foundation design. Considering the importance of geotechnical parameters for any civil engineering project, mapping this information is crucial. The Standard Penetration Test (SPT) is widely used as a geotechnical field test to characterize the soil profile. As the SPT provides information related to a specific point, it is necessary to extend this information to a large area, by filling the voids between sampling points. Civil engineers often carry out this interpolation using inappropriate practices, and the result is hence not always satisfactory. Therefore, methods that combine SPT and geostatistics are proposed for the generation of estimation maps that provide adequate tools for the decision-maker. The dataset used herein is composed of 141 SPTs carried out in an urban area spread over 5 km2. The data obtained show a strong vertical trend, as expected. Soil resistance is estimated from 50 x 25 x 1 -m grid blocks, and the corresponding variance is derived. The estimation is carried out using Kriging in the presence of a trend, also known as Universal Kriging. Results from soil resistance (NspT) show the usefulness of this methodology for mapping geotechnical attributes, and consequently, a significant improvement in the quality of projects can be foreseen.
0013-7952EGGOAOEng. geol.1021-23-D soil-resistance maps in the presence of a strong vertical trendFOLLE (Daiane)LEITE COSTA (Joao Felipe C.)RENARD (Didier)KOPPE (Jair Carlos)ZINGANO (André C.)Mining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 10491501-970, Porto Alegre, RSBRA1 aut.2 aut.4 aut.5 aut.Centre de Geostatistique de l'Ecole des Mines de Paris, 35 Rue St. Honoré77300, FontainebleauFRA3 aut.46-532008ENGINIST124603540001843452300500000© 2009 INIST-CNRS. All rights reserved.1/4 p.09-0245094PPRAEngineering geologyNLDKnowledge of the distribution of soil types and the behavior of the corresponding geotechnical properties is relevant for various civil engineering applications. This information is needed, among others, for city planning, environmental management, determination of slope stability, and foundation design. Considering the importance of geotechnical parameters for any civil engineering project, mapping this information is crucial. The Standard Penetration Test (SPT) is widely used as a geotechnical field test to characterize the soil profile. As the SPT provides information related to a specific point, it is necessary to extend this information to a large area, by filling the voids between sampling points. Civil engineers often carry out this interpolation using inappropriate practices, and the result is hence not always satisfactory. Therefore, methods that combine SPT and geostatistics are proposed for the generation of estimation maps that provide adequate tools for the decision-maker. The dataset used herein is composed of 141 SPTs carried out in an urban area spread over 5 km2. The data obtained show a strong vertical trend, as expected. Soil resistance is estimated from 50 x 25 x 1 -m grid blocks, and the corresponding variance is derived. The estimation is carried out using Kriging in the presence of a trend, also known as Universal Kriging. Results from soil resistance (NspT) show the usefulness of this methodology for mapping geotechnical attributes, and consequently, a significant improvement in the quality of projects can be foreseen.001D14F01295Essai sol01Soil test01Ensayo suelo01Caractéristique sol02Property of soil02Característica suelo02Résistance matériau03Strength of materials03Resistencia material03Géotechnique04Geotechnics04Geotécnica04Essai pénétration05Penetration test05Ensayo penetración05Analyse donnée06Data analysis06Análisis datos06Cartographie07Cartography07Cartografía07Analyse structurale08Structural analysis08Análisis estructural08Géostatistique09Geostatistics09Geoestadística09182PSIPSIPASCAL 09-0245094 INIST3-D soil-resistance maps in the presence of a strong vertical trendFOLLE (Daiane); LEITE COSTA (Joao Felipe C.); RENARD (Didier); KOPPE (Jair Carlos); ZINGANO (André C.)Mining Engineering Department, Federal University of Rio Grande do Sul. Av. Bento Goncalves, 9500, Bloco IV, Prédio 75, Sala 104/91501-970, Porto Alegre, RS/Brésil (1 aut., 2 aut., 4 aut., 5 aut.); Centre de Geostatistique de l'Ecole des Mines de Paris, 35 Rue St. Honoré/77300, Fontainebleau/France (3 aut.)
Publication en série; Papier de recherche; Niveau analytique
Engineering geology; ISSN 0013-7952; Coden EGGOAO; Pays-Bas; Da. 2008; Vol. 102; No. 1-2; Pp. 46-53; Bibl. 1/4 p.AnglaisKnowledge of the distribution of soil types and the behavior of the corresponding geotechnical properties is relevant for various civil engineering applications. This information is needed, among others, for city planning, environmental management, determination of slope stability, and foundation design. Considering the importance of geotechnical parameters for any civil engineering project, mapping this information is crucial. The Standard Penetration Test (SPT) is widely used as a geotechnical field test to characterize the soil profile. As the SPT provides information related to a specific point, it is necessary to extend this information to a large area, by filling the voids between sampling points. Civil engineers often carry out this interpolation using inappropriate practices, and the result is hence not always satisfactory. Therefore, methods that combine SPT and geostatistics are proposed for the generation of estimation maps that provide adequate tools for the decision-maker. The dataset used herein is composed of 141 SPTs carried out in an urban area spread over 5 km2. The data obtained show a strong vertical trend, as expected. Soil resistance is estimated from 50 x 25 x 1 -m grid blocks, and the corresponding variance is derived. The estimation is carried out using Kriging in the presence of a trend, also known as Universal Kriging. Results from soil resistance (NspT) show the usefulness of this methodology for mapping geotechnical attributes, and consequently, a significant improvement in the quality of projects can be foreseen.001D14F01; 295Essai sol; Caractéristique sol; Résistance matériau; Géotechnique; Essai pénétration; Analyse donnée; Cartographie; Analyse structurale; GéostatistiqueSoil test; Property of soil; Strength of materials; Geotechnics; Penetration test; Data analysis; Cartography; Structural analysis; GeostatisticsEnsayo suelo; Característica suelo; Resistencia material; Geotécnica; Ensayo penetración; Análisis datos; Cartografía; Análisis estructural; GeoestadísticaINIST-12460.35400018434523005009-0245094
000C33 Beryllium abundances and star formation in the halo and in the thick diskR. SmiljanicUniversidade de São Paulo, IAG, Dpt. de Astronomia, Rua do Matao 1226São Paulo-SP 05508-090BRA1 aut.European Southern Observatory, Karl-Schwarzschild-Str. 285748 Garching bei MünchenDEU1 aut.2 aut.7 aut.L. PasquiniEuropean Southern Observatory, Karl-Schwarzschild-Str. 285748 Garching bei MünchenDEU1 aut.2 aut.7 aut.P. BonifacioGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA3 aut.INAF - Osservatorio Astronomico di Trieste, via G.B. Tiepolo 1134143 TriesteITA3 aut.D. GalliINAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 550125 FirenzeITA4 aut.6 aut.R. G. GrattonINAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 535122 PadovaITA5 aut.S. RandichINAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 550125 FirenzeITA4 aut.6 aut.B. WolffEuropean Southern Observatory, Karl-Schwarzschild-Str. 285748 Garching bei MünchenDEU1 aut.2 aut.7 aut.09-02463712009PASCAL 09-0246371 INISTPascal:09-0246371001D460004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Age metallicity relationAnticorrelationCorrelationsCosmic radiationDisk galaxiesFormation rateGalaxy haloKinematicsLate type starsModelsNoise spectrumObservablesSpallationStar formationStellar abundanceAbondance stellaireRayonnement cosmiqueSpallationObservableGalaxies disquesCinématiqueSpectre bruitModèleRelation âge métallicitéAnticorrélationFormation stellaireTaux formationCorrélationEtoile type avancéHalo galaxies
Context. Beryllium is a pure product of cosmic ray spallation. This implies a relatively simple evolution in time of the beryllium abundance and suggests its use as a time-like observable. Aims. Our goal is to derive abundances of Be in a sample of 90 stars, the largest sample of halo and thick disk stars analyzed to date. We study the evolution of Be in the early Galaxy and its dependence on kinematic and orbital parameters, and investigate its use as a cosmochronometer. Abundances of Be, Fe, and α-elements of 73 stars are employed to study the formation of the halo and the thick disk of the Galaxy. Methods. Beryllium abundances are determined from high-resolution, high signal-to-noise UVES spectra with spectrum synthesis. Atmospheric parameters and abundances of α-elements are adopted from the literature. Lithium abundances are used to eliminate mixed stars from the sample. The properties of halo and thick disk stars are investigated in diagrams of log(Be/H) vs. [α/H], log(Be/H) vs. [Fe/H], and [α/Fe] vs. log(Be/H) and with orbital and kinematic parameters. Results. We present our observational results in various diagrams. (i) In a log(Be/H) vs. [Fe/H] diagram we find a marginal statistical detection of a real scatter, above what is expected from measurement errors, with a larger scatter among halo stars. The detection of the scatter is further supported by the existence of pairs of stars with identical atmospheric parameters and different Be abundances; (ii) in a log(Be/H) vs. [α/Fe] diagram, the halo stars separate into two components; one is consistent with predictions of evolutionary models, while the other has too high α and Be abundances and is chemically indistinguishable from thick disk stars. This suggests that the halo is not a single uniform population where a clear age-metallicity relation can be defined; (iii) In diagrams of Rmin vs. [α/Fe] and log(Be/H), the thick disk stars show a possible decrease in [α/Fe] with Rmin, whereas no dependence of Be with Rmin is seen. This anticorrelation suggests that the star formation rate was lower in the outer regions of the thick disk, pointing towards an inside-out formation. The lack of correlation for Be indicates that it is insensitive to the local conditions of star formation.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)4991Beryllium abundances and star formation in the halo and in the thick diskSMILJANIC (R.)PASQUINI (L.)BONIFACIO (P.)GALLI (D.)GRATTON (R. G.)RANDICH (S.)WOLFF (B.)Universidade de São Paulo, IAG, Dpt. de Astronomia, Rua do Matao 1226São Paulo-SP 05508-090BRA1 aut.European Southern Observatory, Karl-Schwarzschild-Str. 285748 Garching bei MünchenDEU1 aut.2 aut.7 aut.GEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA3 aut.INAF - Osservatorio Astronomico di Trieste, via G.B. Tiepolo 1134143 TriesteITA3 aut.INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 550125 FirenzeITA4 aut.6 aut.INAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 535122 PadovaITA5 aut.103-1192009ENGINIST141763540001863123501200000© 2009 INIST-CNRS. All rights reserved.1 p.09-0246371PAAstronomy and astrophysics : (Berlin. Print)FRAContext. Beryllium is a pure product of cosmic ray spallation. This implies a relatively simple evolution in time of the beryllium abundance and suggests its use as a time-like observable. Aims. Our goal is to derive abundances of Be in a sample of 90 stars, the largest sample of halo and thick disk stars analyzed to date. We study the evolution of Be in the early Galaxy and its dependence on kinematic and orbital parameters, and investigate its use as a cosmochronometer. Abundances of Be, Fe, and α-elements of 73 stars are employed to study the formation of the halo and the thick disk of the Galaxy. Methods. Beryllium abundances are determined from high-resolution, high signal-to-noise UVES spectra with spectrum synthesis. Atmospheric parameters and abundances of α-elements are adopted from the literature. Lithium abundances are used to eliminate mixed stars from the sample. The properties of halo and thick disk stars are investigated in diagrams of log(Be/H) vs. [α/H], log(Be/H) vs. [Fe/H], and [α/Fe] vs. log(Be/H) and with orbital and kinematic parameters. Results. We present our observational results in various diagrams. (i) In a log(Be/H) vs. [Fe/H] diagram we find a marginal statistical detection of a real scatter, above what is expected from measurement errors, with a larger scatter among halo stars. The detection of the scatter is further supported by the existence of pairs of stars with identical atmospheric parameters and different Be abundances; (ii) in a log(Be/H) vs. [α/Fe] diagram, the halo stars separate into two components; one is consistent with predictions of evolutionary models, while the other has too high α and Be abundances and is chemically indistinguishable from thick disk stars. This suggests that the halo is not a single uniform population where a clear age-metallicity relation can be defined; (iii) In diagrams of Rmin vs. [α/Fe] and log(Be/H), the thick disk stars show a possible decrease in [α/Fe] with Rmin, whereas no dependence of Be with Rmin is seen. This anticorrelation suggests that the star formation rate was lower in the outer regions of the thick disk, pointing towards an inside-out formation. The lack of correlation for Be indicates that it is insensitive to the local conditions of star formation.001E03Abondance stellaire26Stellar abundance26Abundancia estelar26Rayonnement cosmique27Cosmic radiation27Spallation28Spallation28Observable29Observables29Galaxies disques30Disk galaxies30Cinématique31Kinematics31Spectre bruit32Noise spectrum32Espectro ruido32Modèle33Models33Modelo33Relation âge métallicité34Age metallicity relation34Relación edad metalicidad34Anticorrélation35Anticorrelation35Anticorrelación35Formation stellaire36Star formation36Taux formation37Formation rate37Grado formación37Corrélation38Correlations38Etoile type avancé39Late type stars39Halo galaxies40Galaxy halo40Halo galaxia40182OTOOTOPASCAL 09-0246371 INISTBeryllium abundances and star formation in the halo and in the thick diskSMILJANIC (R.); PASQUINI (L.); BONIFACIO (P.); GALLI (D.); GRATTON (R. G.); RANDICH (S.); WOLFF (B.)Universidade de São Paulo, IAG, Dpt. de Astronomia, Rua do Matao 1226/São Paulo-SP 05508-090/Brésil (1 aut.); European Southern Observatory, Karl-Schwarzschild-Str. 2/85748 Garching bei München/Allemagne (1 aut., 2 aut., 7 aut.); GEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen/92190 Meudon/France (3 aut.); INAF - Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11/34143 Trieste/Italie (3 aut.); INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5/50125 Firenze/Italie (4 aut., 6 aut.); INAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5/35122 Padova/Italie (5 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 499; No. 1; Pp. 103-119; Bibl. 1 p.AnglaisContext. Beryllium is a pure product of cosmic ray spallation. This implies a relatively simple evolution in time of the beryllium abundance and suggests its use as a time-like observable. Aims. Our goal is to derive abundances of Be in a sample of 90 stars, the largest sample of halo and thick disk stars analyzed to date. We study the evolution of Be in the early Galaxy and its dependence on kinematic and orbital parameters, and investigate its use as a cosmochronometer. Abundances of Be, Fe, and α-elements of 73 stars are employed to study the formation of the halo and the thick disk of the Galaxy. Methods. Beryllium abundances are determined from high-resolution, high signal-to-noise UVES spectra with spectrum synthesis. Atmospheric parameters and abundances of α-elements are adopted from the literature. Lithium abundances are used to eliminate mixed stars from the sample. The properties of halo and thick disk stars are investigated in diagrams of log(Be/H) vs. [α/H], log(Be/H) vs. [Fe/H], and [α/Fe] vs. log(Be/H) and with orbital and kinematic parameters. Results. We present our observational results in various diagrams. (i) In a log(Be/H) vs. [Fe/H] diagram we find a marginal statistical detection of a real scatter, above what is expected from measurement errors, with a larger scatter among halo stars. The detection of the scatter is further supported by the existence of pairs of stars with identical atmospheric parameters and different Be abundances; (ii) in a log(Be/H) vs. [α/Fe] diagram, the halo stars separate into two components; one is consistent with predictions of evolutionary models, while the other has too high α and Be abundances and is chemically indistinguishable from thick disk stars. This suggests that the halo is not a single uniform population where a clear age-metallicity relation can be defined; (iii) In diagrams of Rmin vs. [α/Fe] and log(Be/H), the thick disk stars show a possible decrease in [α/Fe] with Rmin, whereas no dependence of Be with Rmin is seen. This anticorrelation suggests that the star formation rate was lower in the outer regions of the thick disk, pointing towards an inside-out formation. The lack of correlation for Be indicates that it is insensitive to the local conditions of star formation.001E03Abondance stellaire; Rayonnement cosmique; Spallation; Observable; Galaxies disques; Cinématique; Spectre bruit; Modèle; Relation âge métallicité; Anticorrélation; Formation stellaire; Taux formation; Corrélation; Etoile type avancé; Halo galaxiesStellar abundance; Cosmic radiation; Spallation; Observables; Disk galaxies; Kinematics; Noise spectrum; Models; Age metallicity relation; Anticorrelation; Star formation; Formation rate; Correlations; Late type stars; Galaxy haloAbundancia estelar; Espectro ruido; Modelo; Relación edad metalicidad; Anticorrelación; Grado formación; Halo galaxiaINIST-14176.35400018631235012009-0246371
000C34 Efficacy and Tolerability of Once-Monthly Oral Ibandronate (150 mg) and Once-Weekly Oral Alendronate (70 mg): Additional Results From the Monthly Oral Therapy With Ibandronate for Osteoporosis Intervention (MOTION) StudyRonald EmkeyRadiant ResearchWyomissing, PennsylvaniaUSA1 aut.Pierre D. DelmasUniversité de Lyon and INSERM ResearchLyonFRA2 aut.Michael BologneseBethesda Health ResearchBethesda, MarylandUSA3 aut.Joao Lindolfo C. BorgesUniversidade Catolica de BrasiliaBrasiliaBRA4 aut.Felicia CosmanHelen Hayes HospitalWest Haverstraw, New YorkUSA5 aut.Sergio Ragi-EisCEDOES Diagnóstico e PesquisaVitoriaBRA6 aut.Christopher RecknorUnited Osteoporosis CentersGainesville, GeorgiaUSA7 aut.Cristiano A. ZerbiniHospital HeliopolisSão PauloBRA8 aut.Colin NeateRoche Products Ltd.Welwyn Garden CityGBR9 aut.Farhad SedaratiHoffmann-La Roche Inc.Nutley, New JerseyUSA10 aut.Solomon EpsteinMount Sinai School of MedicineNew York, New YorkUSA11 aut.09-02464892009PASCAL 09-0246489 INISTPascal:09-0246489001D450149-2918Clin. ther.Clinical therapeuticsAlendronic acidAntiosteoporoticAntiresorptive agentBiological markerBisphosphonatesBoneBone mineral densityIbandronic acidMenopauseMonthlyMotion studyOral administrationOsteoporosisPostmenopauseToxicityTreatment efficiencyWeeklyEfficacité traitementToxicitéMensuelVoie oraleAcide ibandroniqueHebdomadaireAcide alendroniqueOstéoporoseEtude mouvementBisphosphonatesOsMarqueur biologiqueDensité minérale osseuseMénopausePostménopauseAntirésorptifAntiostéoporotique
Background: The MOTION (Monthly Oral Therapy with Ibandronate for Osteoporosis Intervention) study reported that once-monthly ibandronate was noninferior to once-weekly alendronate in terms of increasing bone mineral density (BMD) at the lumbar spine and total hip over 12 months. On analysis of secondary and exploratory end points in MOTION, which included trochanter and femoral neck BMD, monthly ibandronate was found to be noninferior to weekly alendronate. The coprimary, secondary, and exploratory BMD end points from MOTION have been previously reported. Objective: This report presents additional results from the MOTION study, including response rates in terms of lumbar spine and total hip BMD gains above baseline; findings from a comparison of serum concentrations of bone turnover markers; and tolerability analysis, including adverse events that led to withdrawal and gastrointestinal (GI) adverse events. Methods: MOTION was a 12-month (with 15-day follow-up), randomized, multinational, multicenter, double-blind, double-dummy, parallel-group, noninferiority study in postmenopausal women aged 55 to <85 years with osteoporosis. Patients were randomly assigned to receive 150-mg-monthly oral ibandronate and weekly alendronate-matched placebo, or 70-mg- weekly oral alendronate and monthly ibandronate-matched placebo, for 12 months. At baseline, day 7 of treatment, 3 and 6 months, 6 months + 7 days, and 12 months, serum concentrations of markers of bone resorption (C-telopeptide of the α chain of type 1 collagen [sCTX]) and bone formation (serum N-terminal propeptides of type 1 collagen) were measured in a subset of the total trial population. At baseline and month 12, BMD was measured using dual-energy x-ray absorptiometry. Exploratory analyses of patients whose spine, total hip, and trochanter BMD at 12 months were above baseline (responders) were also performed. Results: A total of 1760 women were enrolled (ibandronate, 887 patients; alendronate, 873). The median changes in the trough concentrations of sCTX were -75.5% with monthly ibandronate and -81.2% with weekly alendronate. The percentage of patients with mean lumbar spine and total hip BMD gains above baseline (responders) were 90% and 87%, respectively, for ibandronate and 92% and 90%, respectively, for alendronate. GI adverse events were reported in ≤30% of patients per group during this 1-year study. Conclusion: The data from these postmenopausal women with osteoporosis suggest that once-monthly 150-mg ibandronate therapy provided clinically comparable efficacy in terms of BMD response, reductions in bone turnover, and GI tolerability similar to that of weekly 70-mg alendronate.
0149-2918Clin. ther.314Efficacy and Tolerability of Once-Monthly Oral Ibandronate (150 mg) and Once-Weekly Oral Alendronate (70 mg): Additional Results From the Monthly Oral Therapy With Ibandronate for Osteoporosis Intervention (MOTION) StudyEMKEY (Ronald)DELMAS (Pierre D.)BOLOGNESE (Michael)BORGES (Joao Lindolfo C.)COSMAN (Felicia)RAGI-EIS (Sergio)RECKNOR (Christopher)ZERBINI (Cristiano A.)NEATE (Colin)SEDARATI (Farhad)EPSTEIN (Solomon)Radiant ResearchWyomissing, PennsylvaniaUSA1 aut.Université de Lyon and INSERM ResearchLyonFRA2 aut.Bethesda Health ResearchBethesda, MarylandUSA3 aut.Universidade Catolica de BrasiliaBrasiliaBRA4 aut.Helen Hayes HospitalWest Haverstraw, New YorkUSA5 aut.CEDOES Diagnóstico e PesquisaVitoriaBRA6 aut.United Osteoporosis CentersGainesville, GeorgiaUSA7 aut.Hospital HeliopolisSão PauloBRA8 aut.Roche Products Ltd.Welwyn Garden CityGBR9 aut.Hoffmann-La Roche Inc.Nutley, New JerseyUSA10 aut.Mount Sinai School of MedicineNew York, New YorkUSA11 aut.751-7612009ENGINIST183533540001863198700700000© 2009 INIST-CNRS. All rights reserved.24 ref.09-0246489PAClinical therapeuticsUSACCBackground: The MOTION (Monthly Oral Therapy with Ibandronate for Osteoporosis Intervention) study reported that once-monthly ibandronate was noninferior to once-weekly alendronate in terms of increasing bone mineral density (BMD) at the lumbar spine and total hip over 12 months. On analysis of secondary and exploratory end points in MOTION, which included trochanter and femoral neck BMD, monthly ibandronate was found to be noninferior to weekly alendronate. The coprimary, secondary, and exploratory BMD end points from MOTION have been previously reported. Objective: This report presents additional results from the MOTION study, including response rates in terms of lumbar spine and total hip BMD gains above baseline; findings from a comparison of serum concentrations of bone turnover markers; and tolerability analysis, including adverse events that led to withdrawal and gastrointestinal (GI) adverse events. Methods: MOTION was a 12-month (with 15-day follow-up), randomized, multinational, multicenter, double-blind, double-dummy, parallel-group, noninferiority study in postmenopausal women aged 55 to <85 years with osteoporosis. Patients were randomly assigned to receive 150-mg-monthly oral ibandronate and weekly alendronate-matched placebo, or 70-mg- weekly oral alendronate and monthly ibandronate-matched placebo, for 12 months. At baseline, day 7 of treatment, 3 and 6 months, 6 months + 7 days, and 12 months, serum concentrations of markers of bone resorption (C-telopeptide of the α chain of type 1 collagen [sCTX]) and bone formation (serum N-terminal propeptides of type 1 collagen) were measured in a subset of the total trial population. At baseline and month 12, BMD was measured using dual-energy x-ray absorptiometry. Exploratory analyses of patients whose spine, total hip, and trochanter BMD at 12 months were above baseline (responders) were also performed. Results: A total of 1760 women were enrolled (ibandronate, 887 patients; alendronate, 873). The median changes in the trough concentrations of sCTX were -75.5% with monthly ibandronate and -81.2% with weekly alendronate. The percentage of patients with mean lumbar spine and total hip BMD gains above baseline (responders) were 90% and 87%, respectively, for ibandronate and 92% and 90%, respectively, for alendronate. GI adverse events were reported in ≤30% of patients per group during this 1-year study. Conclusion: The data from these postmenopausal women with osteoporosis suggest that once-monthly 150-mg ibandronate therapy provided clinically comparable efficacy in terms of BMD response, reductions in bone turnover, and GI tolerability similar to that of weekly 70-mg alendronate.002B02002B15AEfficacité traitement01Treatment efficiency01Eficacia tratamiento01Toxicité02Toxicity02Toxicidad02Mensuel03Monthly03Mensual03Voie orale04Oral administration04Vía oral04Acide ibandroniqueNKFR05Ibandronic acidNKFR05Acido ibandrónicoNKFR05Hebdomadaire06Weekly06Semanal06Acide alendroniqueNKFR07Alendronic acidNKFR07Acido alendrónicoNKFR07Ostéoporose08Osteoporosis08Osteoporosis08Etude mouvement09Motion study09Estudio movimiento09Bisphosphonates10Bisphosphonates10Bisfosfonatos10Os11Bone11Hueso11Marqueur biologique12Biological marker12Marcador biológico12Densité minérale osseuse13Bone mineral density13Masa mineral ósea13Ménopause14Menopause14Menopausia14Postménopause15Postmenopause15Postmenopausia15Antirésorptif23Antiresorptive agent23Antirresortivo23Antiostéoporotique24Antiosteoporotic24Antiosteoporótico24Dérivé de l'acide diphosphonique37Diphosphonic acid derivatives37Difosfonico ácido derivado37Pathologie du système ostéoarticulaire38Diseases of the osteoarticular system38Sistema osteoarticular patología38Système ostéoarticulaire39Osteoarticular system39Sistema osteoarticular39182OTOOTOPASCAL 09-0246489 INISTEfficacy and Tolerability of Once-Monthly Oral Ibandronate (150 mg) and Once-Weekly Oral Alendronate (70 mg): Additional Results From the Monthly Oral Therapy With Ibandronate for Osteoporosis Intervention (MOTION) StudyEMKEY (Ronald); DELMAS (Pierre D.); BOLOGNESE (Michael); BORGES (Joao Lindolfo C.); COSMAN (Felicia); RAGI-EIS (Sergio); RECKNOR (Christopher); ZERBINI (Cristiano A.); NEATE (Colin); SEDARATI (Farhad); EPSTEIN (Solomon)Radiant Research/Wyomissing, Pennsylvania/Etats-Unis (1 aut.); Université de Lyon and INSERM Research/Lyon/France (2 aut.); Bethesda Health Research/Bethesda, Maryland/Etats-Unis (3 aut.); Universidade Catolica de Brasilia/Brasilia/Brésil (4 aut.); Helen Hayes Hospital/West Haverstraw, New York/Etats-Unis (5 aut.); CEDOES Diagnóstico e Pesquisa/Vitoria/Brésil (6 aut.); United Osteoporosis Centers/Gainesville, Georgia/Etats-Unis (7 aut.); Hospital Heliopolis/São Paulo/Brésil (8 aut.); Roche Products Ltd./Welwyn Garden City/Royaume-Uni (9 aut.); Hoffmann-La Roche Inc./Nutley, New Jersey/Etats-Unis (10 aut.); Mount Sinai School of Medicine/New York, New York/Etats-Unis (11 aut.)
Publication en série; Niveau analytique
Clinical therapeutics; ISSN 0149-2918; Etats-Unis; Da. 2009; Vol. 31; No. 4; Pp. 751-761; Bibl. 24 ref.AnglaisBackground: The MOTION (Monthly Oral Therapy with Ibandronate for Osteoporosis Intervention) study reported that once-monthly ibandronate was noninferior to once-weekly alendronate in terms of increasing bone mineral density (BMD) at the lumbar spine and total hip over 12 months. On analysis of secondary and exploratory end points in MOTION, which included trochanter and femoral neck BMD, monthly ibandronate was found to be noninferior to weekly alendronate. The coprimary, secondary, and exploratory BMD end points from MOTION have been previously reported. Objective: This report presents additional results from the MOTION study, including response rates in terms of lumbar spine and total hip BMD gains above baseline; findings from a comparison of serum concentrations of bone turnover markers; and tolerability analysis, including adverse events that led to withdrawal and gastrointestinal (GI) adverse events. Methods: MOTION was a 12-month (with 15-day follow-up), randomized, multinational, multicenter, double-blind, double-dummy, parallel-group, noninferiority study in postmenopausal women aged 55 to <85 years with osteoporosis. Patients were randomly assigned to receive 150-mg-monthly oral ibandronate and weekly alendronate-matched placebo, or 70-mg- weekly oral alendronate and monthly ibandronate-matched placebo, for 12 months. At baseline, day 7 of treatment, 3 and 6 months, 6 months + 7 days, and 12 months, serum concentrations of markers of bone resorption (C-telopeptide of the α chain of type 1 collagen [sCTX]) and bone formation (serum N-terminal propeptides of type 1 collagen) were measured in a subset of the total trial population. At baseline and month 12, BMD was measured using dual-energy x-ray absorptiometry. Exploratory analyses of patients whose spine, total hip, and trochanter BMD at 12 months were above baseline (responders) were also performed. Results: A total of 1760 women were enrolled (ibandronate, 887 patients; alendronate, 873). The median changes in the trough concentrations of sCTX were -75.5% with monthly ibandronate and -81.2% with weekly alendronate. The percentage of patients with mean lumbar spine and total hip BMD gains above baseline (responders) were 90% and 87%, respectively, for ibandronate and 92% and 90%, respectively, for alendronate. GI adverse events were reported in ≤30% of patients per group during this 1-year study. Conclusion: The data from these postmenopausal women with osteoporosis suggest that once-monthly 150-mg ibandronate therapy provided clinically comparable efficacy in terms of BMD response, reductions in bone turnover, and GI tolerability similar to that of weekly 70-mg alendronate.002B02; 002B15AEfficacité traitement; Toxicité; Mensuel; Voie orale; Acide ibandronique; Hebdomadaire; Acide alendronique; Ostéoporose; Etude mouvement; Bisphosphonates; Os; Marqueur biologique; Densité minérale osseuse; Ménopause; Postménopause; Antirésorptif; AntiostéoporotiqueDérivé de l'acide diphosphonique; Pathologie du système ostéoarticulaire; Système ostéoarticulaireTreatment efficiency; Toxicity; Monthly; Oral administration; Ibandronic acid; Weekly; Alendronic acid; Osteoporosis; Motion study; Bisphosphonates; Bone; Biological marker; Bone mineral density; Menopause; Postmenopause; Antiresorptive agent; AntiosteoporoticDiphosphonic acid derivatives; Diseases of the osteoarticular system; Osteoarticular systemEficacia tratamiento; Toxicidad; Mensual; Vía oral; Acido ibandrónico; Semanal; Acido alendrónico; Osteoporosis; Estudio movimiento; Bisfosfonatos; Hueso; Marcador biológico; Masa mineral ósea; Menopausia; Postmenopausia; Antirresortivo; AntiosteoporóticoINIST-18353.35400018631987007009-0246489
000C35 Radial inhomogeneities induced by fiber diameter in electrically assisted LFZ growth of Bi-2212M. F. CarrascoPhysics Department, 13N, University of Aveiro3810-193 AveiroPRT1 aut.6 aut.R. A. SilvaCentro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud 150, Urca22290-180 Rio de Janeiro, RJBRA2 aut.N. J. O. SilvaInstituto de Cienda de Materiales de Aragón CSIC-Universidade de Zaragoza, Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza50009 ZaragozaESP3 aut.R. F. SilvaCeramic and Glass Engineering Department, CICECO, University of Aveiro3810-193 AveiroPRT4 aut.5 aut.J. M. VieiraCeramic and Glass Engineering Department, CICECO, University of Aveiro3810-193 AveiroPRT4 aut.5 aut.F. M. CostaPhysics Department, 13N, University of Aveiro3810-193 AveiroPRT1 aut.6 aut.09-02480642009PASCAL 09-0248064 INISTPascal:09-0248064001D440169-4332Appl. surf. sci.Applied surface scienceBismuth oxideCalcium oxideCopper oxideFibersFloating zoneHigh-Tc superconductorsInhomogeneityInorganic compoundsLaser assisted processMulti-element compoundsStrontium oxideTransition element compoundsHétérogénéitéFibreProcessus assisté laserZone flottanteOxyde de bismuthOxyde de calciumComposé n élémentsOxyde de cuivreOxyde de strontiumSupraconducteur haute températureBi Ca Cu O SrBiSrCaCuOComposé minéralComposé de métal de transition
Superconducting polycrystalline BSCCO fibers of 2:2:1:2 nominal composition were grown by the electrically assisted laser floating zone (EALFZ) technique. An electric current density of 2.1 A cm-2 was applied through the solid/liquid (S/L) interface. A net effect of the fiber diameter on the as-grown microstructure and on the final superconducting properties is observed. A higher critical current density (∼2520 A cm-2) results for the thinner fibers (ϕ = 1.7 mm) comparingto the value (∼1065 A cm-2) found for the wider ones (ϕ = 2.5 mm). The steep axial thermal gradient at the S/L interface in the thinner fibers is responsible for its superior texture degree, a crucial parameter for improved current transport properties. Moreover, a Cu-free Bix(Sr,Ca)yOz phase crystallizes preferentially from the melt in the wider fibers, acting as obstacles to the current flux.
0169-4332Appl. surf. sci.25510Radial inhomogeneities induced by fiber diameter in electrically assisted LFZ growth of Bi-2212Laser and Plasma in Micro- and Nano-Scale Materials Processing and Diagnostics. Proceedings from the European Material Research Society Spring Meeting 2008 - Symposium BCARRASCO (M. F.)SILVA (R. A.)SILVA (N. J. O.)SILVA (R. F.)VIEIRA (J. M.)COSTA (F. M.)AMORUSO (Salvatore)ed.ATANASOV (Peter A.)ed.BOYD (Ian W.)ed.CHICHKOV (Boris)ed.DELAPORTE (Philippe)ed.Physics Department, 13N, University of Aveiro3810-193 AveiroPRT1 aut.6 aut.Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud 150, Urca22290-180 Rio de Janeiro, RJBRA2 aut.Instituto de Cienda de Materiales de Aragón CSIC-Universidade de Zaragoza, Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza50009 ZaragozaESP3 aut.Ceramic and Glass Engineering Department, CICECO, University of Aveiro3810-193 AveiroPRT4 aut.5 aut.Dipartimento di Scienze Fisiche and Coherentia CNR-INFM, Università degli Studi di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, Via Cintia80126 NapoliITA1 aut.Institute of Electronics, Bulgarian Academy of Sciences, 72, Tsaridradsko shose BoulevardSofia 1784BGR2 aut.Department of Electronic and Electrical Engineering, University College London, Torrington PlaceLondon WC1E 7JEGBR3 aut.Laser Zentrum Hannover e.v. Hollerithallee 830419 HannoverDEU4 aut.Lasers, Plasmas and Photonic Processes Laboratory, Campus de Luminy, 163 av. de Luminy, C.91713288 MarseilleFRA5 aut.5503-55062009ENGINIST160023540001873855008900000© 2009 INIST-CNRS. All rights reserved.15 ref.09-0248064PCAApplied surface scienceNLDSuperconducting polycrystalline BSCCO fibers of 2:2:1:2 nominal composition were grown by the electrically assisted laser floating zone (EALFZ) technique. An electric current density of 2.1 A cm-2 was applied through the solid/liquid (S/L) interface. A net effect of the fiber diameter on the as-grown microstructure and on the final superconducting properties is observed. A higher critical current density (∼2520 A cm-2) results for the thinner fibers (ϕ = 1.7 mm) comparingto the value (∼1065 A cm-2) found for the wider ones (ϕ = 2.5 mm). The steep axial thermal gradient at the S/L interface in the thinner fibers is responsible for its superior texture degree, a crucial parameter for improved current transport properties. Moreover, a Cu-free Bix(Sr,Ca)yOz phase crystallizes preferentially from the melt in the wider fibers, acting as obstacles to the current flux.001B60001B70001B80Hétérogénéité01Inhomogeneity01Fibre02Fibers02Processus assisté laser03Laser assisted process03Proceso asistido láser03Zone flottante04Floating zone04Zona flotante04Oxyde de bismuth15Bismuth oxide15Bismuto óxido15Oxyde de calcium16Calcium oxide16Calcio óxido16Composé n éléments17Multi-element compounds17Oxyde de cuivre18Copper oxide18Cobre óxido18Oxyde de strontium19Strontium oxide19Estroncio óxido19Supraconducteur haute température20High-Tc superconductors20Bi Ca Cu O SrINC32BiSrCaCuOINC33Composé minéral62Inorganic compounds62Composé de métal de transition63Transition element compounds63182OTOOTOEuropean Material Research Society Spring Meeting 2008 -Symposium BStrasbourg FRA2008-05-26PASCAL 09-0248064 INISTRadial inhomogeneities induced by fiber diameter in electrically assisted LFZ growth of Bi-2212CARRASCO (M. F.); SILVA (R. A.); SILVA (N. J. O.); SILVA (R. F.); VIEIRA (J. M.); COSTA (F. M.); AMORUSO (Salvatore); ATANASOV (Peter A.); BOYD (Ian W.); CHICHKOV (Boris); DELAPORTE (Philippe)Physics Department, 13N, University of Aveiro/3810-193 Aveiro/Portugal (1 aut., 6 aut.); Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud 150, Urca/22290-180 Rio de Janeiro, RJ/Brésil (2 aut.); Instituto de Cienda de Materiales de Aragón CSIC-Universidade de Zaragoza, Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza/50009 Zaragoza/Espagne (3 aut.); Ceramic and Glass Engineering Department, CICECO, University of Aveiro/3810-193 Aveiro/Portugal (4 aut., 5 aut.); Dipartimento di Scienze Fisiche and Coherentia CNR-INFM, Università degli Studi di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, Via Cintia/80126 Napoli/Italie (1 aut.); Institute of Electronics, Bulgarian Academy of Sciences, 72, Tsaridradsko shose Boulevard/Sofia 1784/Bulgarie (2 aut.); Department of Electronic and Electrical Engineering, University College London, Torrington Place/London WC1E 7JE/Royaume-Uni (3 aut.); Laser Zentrum Hannover e.v. Hollerithallee 8/30419 Hannover/Allemagne (4 aut.); Lasers, Plasmas and Photonic Processes Laboratory, Campus de Luminy, 163 av. de Luminy, C.917/13288 Marseille/France (5 aut.)
Publication en série; Congrès; Niveau analytique
Applied surface science; ISSN 0169-4332; Pays-Bas; Da. 2009; Vol. 255; No. 10; Pp. 5503-5506; Bibl. 15 ref.AnglaisSuperconducting polycrystalline BSCCO fibers of 2:2:1:2 nominal composition were grown by the electrically assisted laser floating zone (EALFZ) technique. An electric current density of 2.1 A cm-2 was applied through the solid/liquid (S/L) interface. A net effect of the fiber diameter on the as-grown microstructure and on the final superconducting properties is observed. A higher critical current density (∼2520 A cm-2) results for the thinner fibers (ϕ = 1.7 mm) comparingto the value (∼1065 A cm-2) found for the wider ones (ϕ = 2.5 mm). The steep axial thermal gradient at the S/L interface in the thinner fibers is responsible for its superior texture degree, a crucial parameter for improved current transport properties. Moreover, a Cu-free Bix(Sr,Ca)yOz phase crystallizes preferentially from the melt in the wider fibers, acting as obstacles to the current flux.001B60; 001B70; 001B80Hétérogénéité; Fibre; Processus assisté laser; Zone flottante; Oxyde de bismuth; Oxyde de calcium; Composé n éléments; Oxyde de cuivre; Oxyde de strontium; Supraconducteur haute température; Bi Ca Cu O Sr; BiSrCaCuO; Composé minéral; Composé de métal de transitionInhomogeneity; Fibers; Laser assisted process; Floating zone; Bismuth oxide; Calcium oxide; Multi-element compounds; Copper oxide; Strontium oxide; High-Tc superconductors; Inorganic compounds; Transition element compoundsProceso asistido láser; Zona flotante; Bismuto óxido; Calcio óxido; Cobre óxido; Estroncio óxidoINIST-16002.35400018738550089009-0248064
000C36 An abnormal hermaphrodite pelagic stingray Pteroplatytrygon violacea (Dasyatidae) captured off the southern coast of BrazilCésar Corat Ribeiro-PradoCentro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, APTA-SAA, Av. Bartolomeu de Gusmão, 192, Ponta da PraiaCEP: 11030-906, Santos, SPBRA1 aut.Maria Cristina OddoneSecretaria de Pesca e Aqüicultura. Esplanada dos Ministérios, Bloco "D", 2" andar, Sala 238CEP: 70.043-900, Brasília, DFBRA2 aut.Alberto Ferreira De AmorimCentro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, Av. Bartolomeu de Gusmão, 192, Ponta da PraiaCEP: 11030-906, Santos, SPBRA3 aut.Christian CapapeLaboratoire d'Ichtyologie, case 104, Université Montpellier II, Sciences et Techniques du Languedoc34095 MontpellierFRA4 aut.09-02486402009PASCAL 09-0248640 INISTPascal:09-0248640001D430007-9723Cah. biol. mar.Cahiers de biologie marineBrazilHermaphroditeHermaphroditismHydrobiologyIntersexualityMarine environmentMorphological changePelagic zonePseudohermaphroditismHermaphroditeHermaphrodismeZone pélagiqueBrésilHydrobiologieMilieu marinAnomalie morphologiqueIntersexualitéPseudohermaphrodismePteroplatytrygon violacea
Une pastenague pélagique Pteroplatytrygon violacea (Dasyatidae) hermaprodite anormale capturée au large de la côte méridionale du Brésil. Une pastenague pélagique Pteroplatytrygon violacea (Bonaparte, 1832) hermaprodite anormale (intersexuelle) a été capturée au large de la côte méridionale du Brésil. Le spécimen était un adulte mesurant 470 mm d'envergure discale, 880 mm de longueur totale et pesant 2440 g. Le ptérygopode droit était rigide, allongé, de 115 mm de longueur. La dissection de la cavité abdominale a révélé que les deux testicules étaient normalement développés, en revanche, la glande de Leydig droite était atrophiée, celle de gauche plus grande et plus développée. Les deux canaux reproducteurs étaient à peine contournés. L'absence de denticules dermiques développés sur les faces dorsale et ventrale est une caractéristique des femelles adultes. En tout, 14 cas d'hermaphrodisme normal (4) et anormal (10) ont été trouvés chez les batoïdes à l'heure actuelle, incluant P. violacea du Brésil, confirmant que le phénomène est très rare parmi ces espèces de chondrichthyens encore davantage que chez les requins.
0007-9723CBIMA5Cah. biol. mar.501An abnormal hermaphrodite pelagic stingray Pteroplatytrygon violacea (Dasyatidae) captured off the southern coast of BrazilRIBEIRO-PRADO (César Corat)ODDONE (Maria Cristina)FERREIRA DE AMORIM (Alberto)CAPAPE (Christian)Centro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, APTA-SAA, Av. Bartolomeu de Gusmão, 192, Ponta da PraiaCEP: 11030-906, Santos, SPBRA1 aut.Secretaria de Pesca e Aqüicultura. Esplanada dos Ministérios, Bloco "D", 2" andar, Sala 238CEP: 70.043-900, Brasília, DFBRA2 aut.Centro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, Av. Bartolomeu de Gusmão, 192, Ponta da PraiaCEP: 11030-906, Santos, SPBRA3 aut.Laboratoire d'Ichtyologie, case 104, Université Montpellier II, Sciences et Techniques du Languedoc34095 MontpellierFRA4 aut.91-962009ENGfreINIST28513540001870679700900000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0248640PACahiers de biologie marineFRAUne pastenague pélagique Pteroplatytrygon violacea (Dasyatidae) hermaprodite anormale capturée au large de la côte méridionale du Brésil. Une pastenague pélagique Pteroplatytrygon violacea (Bonaparte, 1832) hermaprodite anormale (intersexuelle) a été capturée au large de la côte méridionale du Brésil. Le spécimen était un adulte mesurant 470 mm d'envergure discale, 880 mm de longueur totale et pesant 2440 g. Le ptérygopode droit était rigide, allongé, de 115 mm de longueur. La dissection de la cavité abdominale a révélé que les deux testicules étaient normalement développés, en revanche, la glande de Leydig droite était atrophiée, celle de gauche plus grande et plus développée. Les deux canaux reproducteurs étaient à peine contournés. L'absence de denticules dermiques développés sur les faces dorsale et ventrale est une caractéristique des femelles adultes. En tout, 14 cas d'hermaphrodisme normal (4) et anormal (10) ont été trouvés chez les batoïdes à l'heure actuelle, incluant P. violacea du Brésil, confirmant que le phénomène est très rare parmi ces espèces de chondrichthyens encore davantage que chez les requins.002A15BHermaphrodite01Hermaphrodite01Hermafrodita01Hermaphrodisme02Hermaphroditism02Hermafroditismo02Zone pélagique03Pelagic zone03Zona pelágica03BrésilNG04BrazilNG04BrasilNG04Hydrobiologie05Hydrobiology05Hidrobiología05Milieu marin06Marine environment06Medio marino06Anomalie morphologique07Morphological change07Anomalía morfológica07Intersexualité08Intersexuality08Intersexualidad08Pseudohermaphrodisme23Pseudohermaphroditism23Seudohermafroditismo23Pteroplatytrygon violaceaINC64Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGDasyatidaeINC70187PASCAL 09-0248640 INISTAn abnormal hermaphrodite pelagic stingray Pteroplatytrygon violacea (Dasyatidae) captured off the southern coast of BrazilRIBEIRO-PRADO (César Corat); ODDONE (Maria Cristina); FERREIRA DE AMORIM (Alberto); CAPAPE (Christian)Centro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, APTA-SAA, Av. Bartolomeu de Gusmão, 192, Ponta da Praia/CEP: 11030-906, Santos, SP/Brésil (1 aut.); Secretaria de Pesca e Aqüicultura. Esplanada dos Ministérios, Bloco "D", 2" andar, Sala 238/CEP: 70.043-900, Brasília, DF/Brésil (2 aut.); Centro Avançado de Pesquisas Tecnológicas do Agronegócio do Pescado Marinho. Instituto de Pesca, Av. Bartolomeu de Gusmão, 192, Ponta da Praia/CEP: 11030-906, Santos, SP/Brésil (3 aut.); Laboratoire d'Ichtyologie, case 104, Université Montpellier II, Sciences et Techniques du Languedoc/34095 Montpellier/France (4 aut.)
Publication en série; Niveau analytique
Cahiers de biologie marine; ISSN 0007-9723; Coden CBIMA5; France; Da. 2009; Vol. 50; No. 1; Pp. 91-96; Abs. français; Bibl. 3/4 p.AnglaisUne pastenague pélagique Pteroplatytrygon violacea (Dasyatidae) hermaprodite anormale capturée au large de la côte méridionale du Brésil. Une pastenague pélagique Pteroplatytrygon violacea (Bonaparte, 1832) hermaprodite anormale (intersexuelle) a été capturée au large de la côte méridionale du Brésil. Le spécimen était un adulte mesurant 470 mm d'envergure discale, 880 mm de longueur totale et pesant 2440 g. Le ptérygopode droit était rigide, allongé, de 115 mm de longueur. La dissection de la cavité abdominale a révélé que les deux testicules étaient normalement développés, en revanche, la glande de Leydig droite était atrophiée, celle de gauche plus grande et plus développée. Les deux canaux reproducteurs étaient à peine contournés. L'absence de denticules dermiques développés sur les faces dorsale et ventrale est une caractéristique des femelles adultes. En tout, 14 cas d'hermaphrodisme normal (4) et anormal (10) ont été trouvés chez les batoïdes à l'heure actuelle, incluant P. violacea du Brésil, confirmant que le phénomène est très rare parmi ces espèces de chondrichthyens encore davantage que chez les requins.002A15BHermaphrodite; Hermaphrodisme; Zone pélagique; Brésil; Hydrobiologie; Milieu marin; Anomalie morphologique; Intersexualité; Pseudohermaphrodisme; Pteroplatytrygon violaceaAmérique du Sud; Amérique; DasyatidaeHermaphrodite; Hermaphroditism; Pelagic zone; Brazil; Hydrobiology; Marine environment; Morphological change; Intersexuality; PseudohermaphroditismSouth America; AmericaHermafrodita; Hermafroditismo; Zona pelágica; Brasil; Hidrobiología; Medio marino; Anomalía morfológica; Intersexualidad; SeudohermafroditismoINIST-2851.35400018706797009009-0248640
000C37 Magnetic properties and magnetic structure of the Mn<sub>5</sub>Si<sub>3</sub>-type Tb<sub>5</sub>Si<sub>3</sub> compoundA. V. MorozkinDepartment of Chemistry, Moscow State University, Leninskie Gory, House 1, Building3 GSP-2Moscow, 119992RUS1 aut.O. IsnardInstitut Laue-Langevin, 6 Rue J. Horowitz38042 GrenobleFRA2 aut.Institut Néel du CNR et Université J. Fourier, avenue des martyrs BP166X38042 GrenobleFRA2 aut.R. NirmalaTata Institute of Fundamental ResearchMumbai 400005IND3 aut.Department of Physics, Indian Institute of Technology MadrasChennai 600036IND3 aut.S. K. MalikInternational Centre for Condensed Matter Physics -ICCMP, University of BrasiliaBrasiliaBRA4 aut.09-02492052009PASCAL 09-0249205 INISTPascal:09-0249205001D420925-8388J. alloys compd.Journal of alloys and compoundsAntiferromagnetismCoolingCritical fieldDiffraction patternHeat treatmentsHexagonal latticesHigh temperatureIntermetallic compoundsLow fieldMagnetic momentsMagnetic orderingMagnetic propertiesMagnetic structureMagnetic transitionsMagnetizationMetamagnetismNeutron diffractionOrder-disorder transformationsOrderingSilicidesTemperature dependenceTemperature effectsTerbiumTransition temperatureUnit cellXY modelPropriété magnétiqueDiffraction neutronAimantationRéseau hexagonalStructure magnétiqueEffet températureDépendance températureOrdre magnétiqueRefroidissementTraitement thermiqueDiagramme diffractionHaute températureTempérature transitionAntiferromagnétismeComposé intermétalliqueTerbiumSiliciureRelation ordreTransformation ordre désordreMoment magnétiqueModèle X YMaille cristallineChamp faibleTransition magnétiqueMétamagnétismeChamp critiqueTb6460C
Neutron diffraction and magnetization measurements have been performed on the Tb5Si3 compound (hexagonal Mn5Si3-type, hP16, F63/mcm) to understand its magnetic structure and magnetic properties. The temperature-dependent neutron diffraction results prove that this intermetallic phase shows a complex flat spiral magnetic ordering, presenting three subsequent changes in magnetization at TNeum1 ∼ 100 K, TNeum2 = 62(4) K and TNeum3 = 54(4) K on cooling. However, the magnetization data depict two transitions at 72 K (TN1) and 55 K (TN2). The extended temperature range between TNeum1and TNeum2 over which the neutron diffraction patterns slowly evolve might correspond to the high-temperature antiferromagnetic transition at TN1 and low-temperature antiferromagnetic transition at TN2 of the magnetic data. Between TNeum1 ∼ 100 K and TNeum2 = 62(4) K Tb5Si3 shows a flat spiral antiferromagnetic ordering with a propagation vector K1 = [0,0, ± 1/4]; then, between TNeum2 = 62(4) K and TNeum3 = 54(4) K the flat spiral type ordering is conserved, but by two coexisting propagation vectors K1 = [0,0, ± 1/4] and K2 = [0,0, ±0.4644(3)]. The terbium magnetic moments arrange in the XY(ab) plane of the unit cell. Below TNeum3 = 54(4) K the magnetic component with K1 = [0,0, ± 1/4] vanishes and magnetic structure of Tb5Si3is a flat spiral with K2 = [0,0, ±0.4644(3)], only. Low field magnetization measurements confirm the occurrence of complex, multiple magnetic transitions. The field dependence of the magnetization indicates a metamagnetic transition at a critical field of ∼3T.
0925-8388J. alloys compd.4701-2Magnetic properties and magnetic structure of the Mn5Si3-type Tb5Si3 compoundMOROZKIN (A. V.)ISNARD (O.)NIRMALA (R.)MALIK (S. K.)Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building3 GSP-2Moscow, 119992RUS1 aut.Institut Laue-Langevin, 6 Rue J. Horowitz38042 GrenobleFRA2 aut.Institut Néel du CNR et Université J. Fourier, avenue des martyrs BP166X38042 GrenobleFRA2 aut.Tata Institute of Fundamental ResearchMumbai 400005IND3 aut.Department of Physics, Indian Institute of Technology MadrasChennai 600036IND3 aut.International Centre for Condensed Matter Physics -ICCMP, University of BrasiliaBrasiliaBRA4 aut.20-232009ENGINIST11513540001870622701300000© 2009 INIST-CNRS. All rights reserved.19 ref.09-0249205PAJournal of alloys and compoundsCHENeutron diffraction and magnetization measurements have been performed on the Tb5Si3 compound (hexagonal Mn5Si3-type, hP16, F63/mcm) to understand its magnetic structure and magnetic properties. The temperature-dependent neutron diffraction results prove that this intermetallic phase shows a complex flat spiral magnetic ordering, presenting three subsequent changes in magnetization at TNeum1 ∼ 100 K, TNeum2 = 62(4) K and TNeum3 = 54(4) K on cooling. However, the magnetization data depict two transitions at 72 K (TN1) and 55 K (TN2). The extended temperature range between TNeum1and TNeum2 over which the neutron diffraction patterns slowly evolve might correspond to the high-temperature antiferromagnetic transition at TN1 and low-temperature antiferromagnetic transition at TN2 of the magnetic data. Between TNeum1 ∼ 100 K and TNeum2 = 62(4) K Tb5Si3 shows a flat spiral antiferromagnetic ordering with a propagation vector K1 = [0,0, ± 1/4]; then, between TNeum2 = 62(4) K and TNeum3 = 54(4) K the flat spiral type ordering is conserved, but by two coexisting propagation vectors K1 = [0,0, ± 1/4] and K2 = [0,0, ±0.4644(3)]. The terbium magnetic moments arrange in the XY(ab) plane of the unit cell. Below TNeum3 = 54(4) K the magnetic component with K1 = [0,0, ± 1/4] vanishes and magnetic structure of Tb5Si3is a flat spiral with K2 = [0,0, ±0.4644(3)], only. Low field magnetization measurements confirm the occurrence of complex, multiple magnetic transitions. The field dependence of the magnetization indicates a metamagnetic transition at a critical field of ∼3T.001B70E25001B60D60CPropriété magnétique01Magnetic properties01Diffraction neutron02Neutron diffraction02Aimantation03Magnetization03Réseau hexagonal04Hexagonal lattices04Structure magnétique05Magnetic structure05Effet température06Temperature effects06Dépendance température07Temperature dependence07Ordre magnétique08Magnetic ordering08Refroidissement09Cooling09Traitement thermique10Heat treatments10Diagramme diffraction11Diffraction pattern11Diagrama difracción11Haute température12High temperature12Alta temperatura12Température transition13Transition temperature13Antiferromagnétisme14Antiferromagnetism14Composé intermétallique15Intermetallic compounds15TerbiumNC16TerbiumNC16SiliciureNA17SilicidesNA17Relation ordre29Ordering29Relación orden29Transformation ordre désordre30Order-disorder transformations30Moment magnétique31Magnetic moments31Modèle X Y32XY model32Maille cristalline33Unit cell33Champ faible34Low field34Campo débil34Transition magnétique35Magnetic transitions35Métamagnétisme36Metamagnetism36Champ critique37Critical field37TbINC466460CINC71187OTOOTOPASCAL 09-0249205 INISTMagnetic properties and magnetic structure of the Mn5Si3-type Tb5Si3 compoundMOROZKIN (A. V.); ISNARD (O.); NIRMALA (R.); MALIK (S. K.)Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building3 GSP-2/Moscow, 119992/Russie (1 aut.); Institut Laue-Langevin, 6 Rue J. Horowitz/38042 Grenoble/France (2 aut.); Institut Néel du CNR et Université J. Fourier, avenue des martyrs BP166X/38042 Grenoble/France (2 aut.); Tata Institute of Fundamental Research/Mumbai 400005/Inde (3 aut.); Department of Physics, Indian Institute of Technology Madras/Chennai 600036/Inde (3 aut.); International Centre for Condensed Matter Physics -ICCMP, University of Brasilia/Brasilia/Brésil (4 aut.)
Publication en série; Niveau analytique
Journal of alloys and compounds; ISSN 0925-8388; Suisse; Da. 2009; Vol. 470; No. 1-2; Pp. 20-23; Bibl. 19 ref.AnglaisNeutron diffraction and magnetization measurements have been performed on the Tb5Si3 compound (hexagonal Mn5Si3-type, hP16, F63/mcm) to understand its magnetic structure and magnetic properties. The temperature-dependent neutron diffraction results prove that this intermetallic phase shows a complex flat spiral magnetic ordering, presenting three subsequent changes in magnetization at TNeum1 ∼ 100 K, TNeum2 = 62(4) K and TNeum3 = 54(4) K on cooling. However, the magnetization data depict two transitions at 72 K (TN1) and 55 K (TN2). The extended temperature range between TNeum1and TNeum2 over which the neutron diffraction patterns slowly evolve might correspond to the high-temperature antiferromagnetic transition at TN1 and low-temperature antiferromagnetic transition at TN2 of the magnetic data. Between TNeum1 ∼ 100 K and TNeum2 = 62(4) K Tb5Si3 shows a flat spiral antiferromagnetic ordering with a propagation vector K1 = [0,0, ± 1/4]; then, between TNeum2 = 62(4) K and TNeum3 = 54(4) K the flat spiral type ordering is conserved, but by two coexisting propagation vectors K1 = [0,0, ± 1/4] and K2 = [0,0, ±0.4644(3)]. The terbium magnetic moments arrange in the XY(ab) plane of the unit cell. Below TNeum3 = 54(4) K the magnetic component with K1 = [0,0, ± 1/4] vanishes and magnetic structure of Tb5Si3is a flat spiral with K2 = [0,0, ±0.4644(3)], only. Low field magnetization measurements confirm the occurrence of complex, multiple magnetic transitions. The field dependence of the magnetization indicates a metamagnetic transition at a critical field of ∼3T.001B70E25; 001B60D60CPropriété magnétique; Diffraction neutron; Aimantation; Réseau hexagonal; Structure magnétique; Effet température; Dépendance température; Ordre magnétique; Refroidissement; Traitement thermique; Diagramme diffraction; Haute température; Température transition; Antiferromagnétisme; Composé intermétallique; Terbium; Siliciure; Relation ordre; Transformation ordre désordre; Moment magnétique; Modèle X Y; Maille cristalline; Champ faible; Transition magnétique; Métamagnétisme; Champ critique; Tb; 6460CMagnetic properties; Neutron diffraction; Magnetization; Hexagonal lattices; Magnetic structure; Temperature effects; Temperature dependence; Magnetic ordering; Cooling; Heat treatments; Diffraction pattern; High temperature; Transition temperature; Antiferromagnetism; Intermetallic compounds; Terbium; Silicides; Ordering; Order-disorder transformations; Magnetic moments; XY model; Unit cell; Low field; Magnetic transitions; Metamagnetism; Critical fieldDiagrama difracción; Alta temperatura; Relación orden; Campo débilINIST-1151.35400018706227013009-0249205
000C38 On the ferromagnetic structure of the intermetallic borocarbide TbCo<sub>2</sub>B<sub>2</sub>CM. ElmassalamiInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.R. MorenoInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.R. M. SaeedInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.F. A. B. ChavesInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.C. M. ChavesInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.R. E. RappInstituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.H. TakeyaNational Institute for Materials Science, 1-2-1 SengenTsukuba, Ibaraki 305-0047JPN7 aut.B. OuladdiafInstitut Laue-Langevin, BP 15638042 GrenobleFRA8 aut.M. AmaraInstitut Néel-CNRS, Bâtiment D, BP 16638042 GrenobleFRA9 aut.09-02535832009PASCAL 09-0253583 INISTPascal:09-0253583001D410953-8984J. phys., Condens. matter : (Print)Journal of physics. Condensed matter : (Print)Borides carbidesCrystal fieldCurie-Weiss lawFerromagnetic materialsIntermetallic compoundsLattice parametersMagnetic orderingMagnetic transitionsMagnetizationMagnetostrictionNeutron diffractionSpecific heatSublatticesAimantationChaleur massiqueMagnétostrictionDiffraction neutronOrdre magnétiqueParamètre cristallinLoi Curie WeissSous réseauTransition magnétiqueChamp cristallinMatériau ferromagnétiqueComposé intermétalliqueBorocarbure
Based on magnetization, specific heat, magnetostriction and neutron-diffraction studies on single-crystal TbCo2B2C, it is found out that the paramagnetic properties, down to liquid nitrogen temperatures, are well described by a Curie-Weiss behavior of the Tb3+ moments. Furthermore, below Tc = 6.3 K, the Tb sublattice undergoes a ferromagnetic (FM) phase transition with the easy axis being along the (100) direction and, concomitantly, the unit cell undergoes a tetragonal-to-orthorhombic distortion. The manifestation of an FM state in TbCo2B2C is unique among all other isomorphous borocarbides, in particular TbNi2B2C (TN = 15 K, incommensurate modulated magnetic state) even though the Tb ions in both isomorphs have almost the same crystalline electric field properties. The difference among the magnetic modes of these Tb-based isomorphs is attributed to a difference in their exchange couplings which are in turn caused by a variation in their lattice parameters and in the position of their Fermi levels.
0953-8984JCOMELJ. phys., Condens. matter : (Print)2121On the ferromagnetic structure of the intermetallic borocarbide TbCo2B2CELMASSALAMI (M.)MORENO (R.)SAEED (R. M.)CHAVES (F. A. B.)CHAVES (C. M.)RAPP (R. E.)TAKEYA (H.)OULADDIAF (B.)AMARA (M.)Instituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 6852821945-970 Rio de JaneiroBRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.National Institute for Materials Science, 1-2-1 SengenTsukuba, Ibaraki 305-0047JPN7 aut.Institut Laue-Langevin, BP 15638042 GrenobleFRA8 aut.Institut Néel-CNRS, Bâtiment D, BP 16638042 GrenobleFRA9 aut.216006.1-216006.92009ENGINIST577E23540001863126803000000© 2009 INIST-CNRS. All rights reserved.33 ref.09-0253583PAJournal of physics. Condensed matter : (Print)GBRBased on magnetization, specific heat, magnetostriction and neutron-diffraction studies on single-crystal TbCo2B2C, it is found out that the paramagnetic properties, down to liquid nitrogen temperatures, are well described by a Curie-Weiss behavior of the Tb3+ moments. Furthermore, below Tc = 6.3 K, the Tb sublattice undergoes a ferromagnetic (FM) phase transition with the easy axis being along the (100) direction and, concomitantly, the unit cell undergoes a tetragonal-to-orthorhombic distortion. The manifestation of an FM state in TbCo2B2C is unique among all other isomorphous borocarbides, in particular TbNi2B2C (TN = 15 K, incommensurate modulated magnetic state) even though the Tb ions in both isomorphs have almost the same crystalline electric field properties. The difference among the magnetic modes of these Tb-based isomorphs is attributed to a difference in their exchange couplings which are in turn caused by a variation in their lattice parameters and in the position of their Fermi levels.001B70E80001B70E25Aimantation02Magnetization02Chaleur massique03Specific heat03Magnétostriction04Magnetostriction04Diffraction neutron05Neutron diffraction05Ordre magnétique06Magnetic ordering06Paramètre cristallin07Lattice parameters07Loi Curie Weiss08Curie-Weiss law08Sous réseau09Sublattices09Transition magnétique11Magnetic transitions11Champ cristallin14Crystal field14Matériau ferromagnétique15Ferromagnetic materials15Composé intermétallique16Intermetallic compounds16BorocarbureNA17Borides carbidesNA17Boruro carburoNA17187PASCAL 09-0253583 INISTOn the ferromagnetic structure of the intermetallic borocarbide TbCo2B2CELMASSALAMI (M.); MORENO (R.); SAEED (R. M.); CHAVES (F. A. B.); CHAVES (C. M.); RAPP (R. E.); TAKEYA (H.); OULADDIAF (B.); AMARA (M.)Instituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528/21945-970 Rio de Janeiro/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut.); National Institute for Materials Science, 1-2-1 Sengen/Tsukuba, Ibaraki 305-0047/Japon (7 aut.); Institut Laue-Langevin, BP 156/38042 Grenoble/France (8 aut.); Institut Néel-CNRS, Bâtiment D, BP 166/38042 Grenoble/France (9 aut.)
Publication en série; Niveau analytique
Journal of physics. Condensed matter : (Print); ISSN 0953-8984; Coden JCOMEL; Royaume-Uni; Da. 2009; Vol. 21; No. 21; 216006.1-216006.9; Bibl. 33 ref.AnglaisBased on magnetization, specific heat, magnetostriction and neutron-diffraction studies on single-crystal TbCo2B2C, it is found out that the paramagnetic properties, down to liquid nitrogen temperatures, are well described by a Curie-Weiss behavior of the Tb3+ moments. Furthermore, below Tc = 6.3 K, the Tb sublattice undergoes a ferromagnetic (FM) phase transition with the easy axis being along the (100) direction and, concomitantly, the unit cell undergoes a tetragonal-to-orthorhombic distortion. The manifestation of an FM state in TbCo2B2C is unique among all other isomorphous borocarbides, in particular TbNi2B2C (TN = 15 K, incommensurate modulated magnetic state) even though the Tb ions in both isomorphs have almost the same crystalline electric field properties. The difference among the magnetic modes of these Tb-based isomorphs is attributed to a difference in their exchange couplings which are in turn caused by a variation in their lattice parameters and in the position of their Fermi levels.001B70E80; 001B70E25Aimantation; Chaleur massique; Magnétostriction; Diffraction neutron; Ordre magnétique; Paramètre cristallin; Loi Curie Weiss; Sous réseau; Transition magnétique; Champ cristallin; Matériau ferromagnétique; Composé intermétallique; BorocarbureMagnetization; Specific heat; Magnetostriction; Neutron diffraction; Magnetic ordering; Lattice parameters; Curie-Weiss law; Sublattices; Magnetic transitions; Crystal field; Ferromagnetic materials; Intermetallic compounds; Borides carbidesBoruro carburoINIST-577E2.35400018631268030009-0253583
000C39 Elastoplastic behavior of jointed rock masses as homogenized media and finite element analysisS. MaghousDepartment of Civil Engineering, Federal University, of Rio Grande do SulPorto Alegre-RSBRA1 aut.2 aut.D. BernaudDepartment of Civil Engineering, Federal University, of Rio Grande do SulPorto Alegre-RSBRA1 aut.2 aut.J. FreardLMSGC, Ecole Nationale des Punts et ChausséesMarne-la ValleeFRA3 aut.4 aut.D. GarnierLMSGC, Ecole Nationale des Punts et ChausséesMarne-la ValleeFRA3 aut.4 aut.09-02540552008PASCAL 09-0254055 INISTPascal:09-0254055001D401365-1609Int. j. rock mech. min. sci. : (1997)International journal of rock mechanics and mining sciences : (1997)Constitutive equationElastoplasticityFinite element methodImplementationJointed rockModelingRock massRock mechanicsStrengthMécanique rocheRoche fracturéeMassif rocheuxMéthode élément finiRésistance mécaniqueElastoplasticitéModélisationEquation constitutiveImplémentation
A comprehensive 3D formulation for the strength properties and elastoplastic constitutive equations of jointed rock masses are derived in this paper. The approach is based on the implementation of the homogenization method of randomly heterogeneous media within the frameworks of limit analysis and elastoplasticity. A rigorous closed-form expression of the macroscopic strength criterion is first given as a function of the failure conditions of the rock matrix and of the joints. As an example of implementation of such a homogenized criterion, the stability analysis of an underground gallery in a jointed rock masses is presented and the scale effects, which prevail if the number of joints is relatively low, are investigated through comparisons with the results derived from direct calculations. Assuming elastoplastic constitutive laws for the rock matrix and the joints, a micromechanical reasoning is used for the formulation of the overall behavior. The macroscopic elastic stiffness as well as the plastic criterion and the plastic flow rule are derived from the knowledge of the mechanical properties of the individual constituents. This anisotropic model is then implemented in a F.E computer code. Due to the multi-potential character of the macroscopic plastic flow rule, the numerical analysis is particularly focused on the iterative algorithm of plastic integration. Examples of numerical simulations dealing with jointed rock structures are finally given.
1365-1609Int. j. rock mech. min. sci. : (1997)458Elastoplastic behavior of jointed rock masses as homogenized media and finite element analysisMAGHOUS (S.)BERNAUD (D.)FREARD (J.)GARNIER (D.)Department of Civil Engineering, Federal University, of Rio Grande do SulPorto Alegre-RSBRA1 aut.2 aut.LMSGC, Ecole Nationale des Punts et ChausséesMarne-la ValleeFRA3 aut.4 aut.1273-12862008ENGINIST122583540001850001800600000© 2009 INIST-CNRS. All rights reserved.37 ref.09-0254055PAInternational journal of rock mechanics and mining sciences : (1997)GBRA comprehensive 3D formulation for the strength properties and elastoplastic constitutive equations of jointed rock masses are derived in this paper. The approach is based on the implementation of the homogenization method of randomly heterogeneous media within the frameworks of limit analysis and elastoplasticity. A rigorous closed-form expression of the macroscopic strength criterion is first given as a function of the failure conditions of the rock matrix and of the joints. As an example of implementation of such a homogenized criterion, the stability analysis of an underground gallery in a jointed rock masses is presented and the scale effects, which prevail if the number of joints is relatively low, are investigated through comparisons with the results derived from direct calculations. Assuming elastoplastic constitutive laws for the rock matrix and the joints, a micromechanical reasoning is used for the formulation of the overall behavior. The macroscopic elastic stiffness as well as the plastic criterion and the plastic flow rule are derived from the knowledge of the mechanical properties of the individual constituents. This anisotropic model is then implemented in a F.E computer code. Due to the multi-potential character of the macroscopic plastic flow rule, the numerical analysis is particularly focused on the iterative algorithm of plastic integration. Examples of numerical simulations dealing with jointed rock structures are finally given.001D14F02001D14C01295Mécanique roche01Rock mechanics01Mecánica roca01Roche fracturée02Jointed rock02Roca diaclasada02Massif rocheux03Rock mass03Macizo rocoso03Méthode élément fini04Finite element method04Método elemento finito04Résistance mécanique05Strength05Resistencia mecánica05Elastoplasticité06Elastoplasticity06Elastoplasticidad06Modélisation07Modeling07Modelización07Equation constitutive08Constitutive equation08Ecuación constitutiva08Implémentation09Implementation09Implementación09187PSIPSIPASCAL 09-0254055 INISTElastoplastic behavior of jointed rock masses as homogenized media and finite element analysisMAGHOUS (S.); BERNAUD (D.); FREARD (J.); GARNIER (D.)Department of Civil Engineering, Federal University, of Rio Grande do Sul/Porto Alegre-RS/Brésil (1 aut., 2 aut.); LMSGC, Ecole Nationale des Punts et Chaussées/Marne-la Vallee/France (3 aut., 4 aut.)
Publication en série; Niveau analytique
International journal of rock mechanics and mining sciences : (1997); ISSN 1365-1609; Royaume-Uni; Da. 2008; Vol. 45; No. 8; Pp. 1273-1286; Bibl. 37 ref.AnglaisA comprehensive 3D formulation for the strength properties and elastoplastic constitutive equations of jointed rock masses are derived in this paper. The approach is based on the implementation of the homogenization method of randomly heterogeneous media within the frameworks of limit analysis and elastoplasticity. A rigorous closed-form expression of the macroscopic strength criterion is first given as a function of the failure conditions of the rock matrix and of the joints. As an example of implementation of such a homogenized criterion, the stability analysis of an underground gallery in a jointed rock masses is presented and the scale effects, which prevail if the number of joints is relatively low, are investigated through comparisons with the results derived from direct calculations. Assuming elastoplastic constitutive laws for the rock matrix and the joints, a micromechanical reasoning is used for the formulation of the overall behavior. The macroscopic elastic stiffness as well as the plastic criterion and the plastic flow rule are derived from the knowledge of the mechanical properties of the individual constituents. This anisotropic model is then implemented in a F.E computer code. Due to the multi-potential character of the macroscopic plastic flow rule, the numerical analysis is particularly focused on the iterative algorithm of plastic integration. Examples of numerical simulations dealing with jointed rock structures are finally given.001D14F02; 001D14C01; 295Mécanique roche; Roche fracturée; Massif rocheux; Méthode élément fini; Résistance mécanique; Elastoplasticité; Modélisation; Equation constitutive; ImplémentationRock mechanics; Jointed rock; Rock mass; Finite element method; Strength; Elastoplasticity; Modeling; Constitutive equation; ImplementationMecánica roca; Roca diaclasada; Macizo rocoso; Método elemento finito; Resistencia mecánica; Elastoplasticidad; Modelización; Ecuación constitutiva; ImplementaciónINIST-12258.35400018500018006009-0254055
000C40 Molecular characterisation of Staphylococcus aureus strains isolated from small and large ruminants reveals a host rather than tissue specificityP. D. D. AlvesINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBRA1 aut.7 aut.8 aut.J. A. MccullochINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.S. EvenINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.C. Le MarechalINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.A. ThierryINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.N. GrossetINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.V. AzevedoInstituto de Ciências Biológicas, Universidade Federal de Minas GeraisBRA1 aut.7 aut.8 aut.C. A. RosaInstituto de Ciências Biológicas, Universidade Federal de Minas GeraisBRA1 aut.7 aut.8 aut.E. VautorPPR, AFSSA Sophia AntipolisFRA9 aut.Y. Le LoirINRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.09-02547202009PASCAL 09-0254720 INISTPascal:09-0254720001D390378-1135Vet. microbiol. : (Amst.)Veterinary microbiology : (Amsterdam)MastitisMicrobiologyStaphylococcus aureusStrainTissue specificityVeterinaryStaphylococcus aureusSoucheSpécificité tissuMicrobiologieVétérinaireMastite
Staphylococcus aureus is an important pathogen in domestic ruminants. The main objective of this study was to determine the similarity of epidemiologically unrelated S. aureus isolates from bovine, ovine, and caprine hosts regardless the locus of isolation (nares and udder). By pulsed-field gel electrophoresis, seven major pulsotypes were identified among 153 isolates recovered from 12 different regions of France as well as from Brazil, the USA and Belgium. Typing of the accessory gene regulator (agr) and capsular (cap) serotype was carried out on all the isolates and revealed the predominance of agr I and III and of cap8 regardless the ruminant host species. Screening for methicilin-resistant S. aureus (MRSA) was carried out by disk diffusion and revealed a prevalence of only 3.2% of MRSA among the strains tested. These results suggest the existence of a host rather than tissue specificity among S. aureus isolates colonising the ruminant species and suggest a limited transmission of those isolates between large (bovine) and small (ovine-caprine) ruminants. The agr class and cap types correlated with pulsotype clusters rather than with a specific host species. Antimicrobial resistance appears not to have contributed to the predominance of any given genotypes, and MRSA prevalence appears very low in ruminant isolates.
0378-1135VMICDQVet. microbiol. : (Amst.)1371-2Molecular characterisation of Staphylococcus aureus strains isolated from small and large ruminants reveals a host rather than tissue specificityALVES (P. D. D.)MCCULLOCH (J. A.)EVEN (S.)LE MARECHAL (C.)THIERRY (A.)GROSSET (N.)AZEVEDO (V.)ROSA (C. A.)VAUTOR (E.)LE LOIR (Y.)INRA, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc35042 RennesFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.10 aut.Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBRA1 aut.7 aut.8 aut.PPR, AFSSA Sophia AntipolisFRA9 aut.190-1952009ENGINIST168843540001863068202600000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0254720PCCAVeterinary microbiology : (Amsterdam)NLDStaphylococcus aureus is an important pathogen in domestic ruminants. The main objective of this study was to determine the similarity of epidemiologically unrelated S. aureus isolates from bovine, ovine, and caprine hosts regardless the locus of isolation (nares and udder). By pulsed-field gel electrophoresis, seven major pulsotypes were identified among 153 isolates recovered from 12 different regions of France as well as from Brazil, the USA and Belgium. Typing of the accessory gene regulator (agr) and capsular (cap) serotype was carried out on all the isolates and revealed the predominance of agr I and III and of cap8 regardless the ruminant host species. Screening for methicilin-resistant S. aureus (MRSA) was carried out by disk diffusion and revealed a prevalence of only 3.2% of MRSA among the strains tested. These results suggest the existence of a host rather than tissue specificity among S. aureus isolates colonising the ruminant species and suggest a limited transmission of those isolates between large (bovine) and small (ovine-caprine) ruminants. The agr class and cap types correlated with pulsotype clusters rather than with a specific host species. Antimicrobial resistance appears not to have contributed to the predominance of any given genotypes, and MRSA prevalence appears very low in ruminant isolates.002A05B15Staphylococcus aureusNS01Staphylococcus aureusNS01Staphylococcus aureusNS01Souche05Strain05Cepa05Spécificité tissu06Tissue specificity06Especificidad tejido06Microbiologie07Microbiology07Microbiología07Vétérinaire08Veterinary08Veterinario08Mastite14Mastitis14Mastitis14MicrococcaceaeNSMicrococcaceaeNSMicrococcaceaeNSMicrococcalesNSMicrococcalesNSMicrococcalesNSBactérieBacteriaBacteriaPathologie de la glande mammaireNM13Mammary gland diseasesNM13Glándula mamaria patologíaNM13187OTOOTOPASCAL 09-0254720 INISTMolecular characterisation of Staphylococcus aureus strains isolated from small and large ruminants reveals a host rather than tissue specificityALVES (P. D. D.); MCCULLOCH (J. A.); EVEN (S.); LE MARECHAL (C.); THIERRY (A.); GROSSET (N.); AZEVEDO (V.); ROSA (C. A.); VAUTOR (E.); LE LOIR (Y.)INRA, UMR1253 STLO, 85 rue de Saint Brieuc/35042 Rennes/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 10 aut.); Agrocampus Ouest, UMR1253 STLO, 85 rue de Saint Brieuc/35042 Rennes/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 10 aut.); Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais/Brésil (1 aut., 7 aut., 8 aut.); PPR, AFSSA Sophia Antipolis/France (9 aut.)
Publication en série; Courte communication, note brève; Niveau analytique
Veterinary microbiology : (Amsterdam); ISSN 0378-1135; Coden VMICDQ; Pays-Bas; Da. 2009; Vol. 137; No. 1-2; Pp. 190-195; Bibl. 3/4 p.AnglaisStaphylococcus aureus is an important pathogen in domestic ruminants. The main objective of this study was to determine the similarity of epidemiologically unrelated S. aureus isolates from bovine, ovine, and caprine hosts regardless the locus of isolation (nares and udder). By pulsed-field gel electrophoresis, seven major pulsotypes were identified among 153 isolates recovered from 12 different regions of France as well as from Brazil, the USA and Belgium. Typing of the accessory gene regulator (agr) and capsular (cap) serotype was carried out on all the isolates and revealed the predominance of agr I and III and of cap8 regardless the ruminant host species. Screening for methicilin-resistant S. aureus (MRSA) was carried out by disk diffusion and revealed a prevalence of only 3.2% of MRSA among the strains tested. These results suggest the existence of a host rather than tissue specificity among S. aureus isolates colonising the ruminant species and suggest a limited transmission of those isolates between large (bovine) and small (ovine-caprine) ruminants. The agr class and cap types correlated with pulsotype clusters rather than with a specific host species. Antimicrobial resistance appears not to have contributed to the predominance of any given genotypes, and MRSA prevalence appears very low in ruminant isolates.002A05B15Staphylococcus aureus; Souche; Spécificité tissu; Microbiologie; Vétérinaire; MastiteMicrococcaceae; Micrococcales; Bactérie; Pathologie de la glande mammaireStaphylococcus aureus; Strain; Tissue specificity; Microbiology; Veterinary; MastitisMicrococcaceae; Micrococcales; Bacteria; Mammary gland diseasesStaphylococcus aureus; Cepa; Especificidad tejido; Microbiología; Veterinario; MastitisINIST-16884.35400018630682026009-0254720
000C41 Stability analysis and gain-scheduled state feedback control for continuous-time systems with bounded parameter variationsVinicius F. MontagnerCT Alegrete/UNIPAMPA-GEPOC/UFSMAlegrete, RSBRA1 aut.Ricardo C. L. F. OliveiraSchool of Electrical and Computer Engineering, University of Campinas - UNICAMPCampinas, SPBRA2 aut.3 aut.Pedro L. D. PeresSchool of Electrical and Computer Engineering, University of Campinas - UNICAMPCampinas, SPBRA2 aut.3 aut.Pierre-Alexandre BlimanINRIA-RoequencourtLe ChesnayFRA4 aut.09-02566772009PASCAL 09-0256677 INISTPascal:09-0256677001D380020-7179Int. J. ControlInternational Journal of ControlClosed feedbackContinuous controlContinuous timeFeedback regulationGain schedulingLinear matrix inequalityLyapunov functionPolytopeQuadratic functionRobust controlRobust stabilityRobustnessState dependenceState feedbackTime varying systemSéquencement gainRétroactionCommande retour étatCommande boucle ferméeContrôle continuSystème paramètre variableStabilité robusteCommande robusteRobustesseDépendance de l'étatTemps continuPolytopeInégalité matricielle linéaireFonction LyapunovFonction quadratique
The problems of robust stability analysis and state feedback control based on gain-scheduling for continuous-time systems with time-varying parameters that have bounded rates of variation and lie inside a polytope are addressed in this article. With respect to previous results in the literature, two main contributions of the article are: (i) the robust stability analysis conditions are less conservative and demand less computational effort than the existing ones; (ii) the conditions can be extended to cope with the problem of control design for this class of system. Parameter-dependent linear matrix inequality (LMI) conditions are given for the existence of a parameter-dependent Lyapunov function quadratic in the state and homogeneous polynomially of arbitrary degree in the parameter assuring robust stability. Two convex procedures based on LMIs exhibiting distinct complexities are proposed to solve the problem of robust stability. An extension to deal with the computation of a stabilising parameter-dependent state feedback gain for this class of time-varying systems is also provided, as a sequence of LMIs of increasing precision. Examples illustrate the results, including comparisons with other techniques from the literature.
0020-7179IJCOAZInt. J. Control826Stability analysis and gain-scheduled state feedback control for continuous-time systems with bounded parameter variationsMONTAGNER (Vinicius F.)OLIVEIRA (Ricardo C. L. F.)PERES (Pedro L. D.)BLIMAN (Pierre-Alexandre)CT Alegrete/UNIPAMPA-GEPOC/UFSMAlegrete, RSBRA1 aut.School of Electrical and Computer Engineering, University of Campinas - UNICAMPCampinas, SPBRA2 aut.3 aut.INRIA-RoequencourtLe ChesnayFRA4 aut.1045-10592009ENGINIST7803B3540001878876100600000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0256677PAInternational Journal of ControlGBRThe problems of robust stability analysis and state feedback control based on gain-scheduling for continuous-time systems with time-varying parameters that have bounded rates of variation and lie inside a polytope are addressed in this article. With respect to previous results in the literature, two main contributions of the article are: (i) the robust stability analysis conditions are less conservative and demand less computational effort than the existing ones; (ii) the conditions can be extended to cope with the problem of control design for this class of system. Parameter-dependent linear matrix inequality (LMI) conditions are given for the existence of a parameter-dependent Lyapunov function quadratic in the state and homogeneous polynomially of arbitrary degree in the parameter assuring robust stability. Two convex procedures based on LMIs exhibiting distinct complexities are proposed to solve the problem of robust stability. An extension to deal with the computation of a stabilising parameter-dependent state feedback gain for this class of time-varying systems is also provided, as a sequence of LMIs of increasing precision. Examples illustrate the results, including comparisons with other techniques from the literature.001D02D07001D02D06Séquencement gain06Gain scheduling06Planificación ganancia06Rétroaction07Feedback regulation07Retroacción07Commande retour état08State feedback08Bucle realimentación estado08Commande boucle fermée09Closed feedback09Bucle realimentación cerrada09Contrôle continu10Continuous control10Control continuo10Système paramètre variable11Time varying system11Sistema parámetro variable11Stabilité robuste12Robust stability12Estabilidad robusta12Commande robuste13Robust control13Control robusta13Robustesse14Robustness14Robustez14Dépendance de l'état15State dependence15Dependencia del estado15Temps continu18Continuous time18Tiempo continuo18Polytope28Polytope28Politope28Inégalité matricielle linéaire29Linear matrix inequality29Desigualdad matricial lineal29Fonction Lyapunov30Lyapunov function30Función Lyapunov30Fonction quadratique31Quadratic function31Función cuadrática31187OTOOTOPASCAL 09-0256677 INISTStability analysis and gain-scheduled state feedback control for continuous-time systems with bounded parameter variationsMONTAGNER (Vinicius F.); OLIVEIRA (Ricardo C. L. F.); PERES (Pedro L. D.); BLIMAN (Pierre-Alexandre)CT Alegrete/UNIPAMPA-GEPOC/UFSM/Alegrete, RS/Brésil (1 aut.); School of Electrical and Computer Engineering, University of Campinas - UNICAMP/Campinas, SP/Brésil (2 aut., 3 aut.); INRIA-Roequencourt/Le Chesnay/France (4 aut.)
Publication en série; Niveau analytique
International Journal of Control; ISSN 0020-7179; Coden IJCOAZ; Royaume-Uni; Da. 2009; Vol. 82; No. 6; Pp. 1045-1059; Bibl. 1 p.3/4AnglaisThe problems of robust stability analysis and state feedback control based on gain-scheduling for continuous-time systems with time-varying parameters that have bounded rates of variation and lie inside a polytope are addressed in this article. With respect to previous results in the literature, two main contributions of the article are: (i) the robust stability analysis conditions are less conservative and demand less computational effort than the existing ones; (ii) the conditions can be extended to cope with the problem of control design for this class of system. Parameter-dependent linear matrix inequality (LMI) conditions are given for the existence of a parameter-dependent Lyapunov function quadratic in the state and homogeneous polynomially of arbitrary degree in the parameter assuring robust stability. Two convex procedures based on LMIs exhibiting distinct complexities are proposed to solve the problem of robust stability. An extension to deal with the computation of a stabilising parameter-dependent state feedback gain for this class of time-varying systems is also provided, as a sequence of LMIs of increasing precision. Examples illustrate the results, including comparisons with other techniques from the literature.001D02D07; 001D02D06Séquencement gain; Rétroaction; Commande retour état; Commande boucle fermée; Contrôle continu; Système paramètre variable; Stabilité robuste; Commande robuste; Robustesse; Dépendance de l'état; Temps continu; Polytope; Inégalité matricielle linéaire; Fonction Lyapunov; Fonction quadratiqueGain scheduling; Feedback regulation; State feedback; Closed feedback; Continuous control; Time varying system; Robust stability; Robust control; Robustness; State dependence; Continuous time; Polytope; Linear matrix inequality; Lyapunov function; Quadratic functionPlanificación ganancia; Retroacción; Bucle realimentación estado; Bucle realimentación cerrada; Control continuo; Sistema parámetro variable; Estabilidad robusta; Control robusta; Robustez; Dependencia del estado; Tiempo continuo; Politope; Desigualdad matricial lineal; Función Lyapunov; Función cuadráticaINIST-7803B.35400018788761006009-0256677
000C42 The food contaminant deoxynivalenol, decreases intestinal barrier permeability and reduces claudin expressionPhilippe PintonINRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.Jean-Philippe NougayredeUMR 1225ToulouseFRA2 aut.Juan-Carlos Del RioINRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.Carolina MorenoINRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.Daniela E. MarinINRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.INCDBNABalotestiROU5 aut.Laurent FerrierUMR1054ToulouseFRA6 aut.Ana-Paula BracarenseUniversidade Estadual de LondrinaLondrinaBRA7 aut.Martine Kolf-ClauwEcole Nationale Vétérinaire, Laboratoire de ToxicologieToulouseFRA8 aut.Isabelle P. OswaldINRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.09-02586982009PASCAL 09-0258698 INISTPascal:09-0258698001D370041-008XToxicol. appl. pharmacol.Toxicology and applied pharmacologyBarrier functionClaudinContaminantDecreaseFoodGap junctionGutMycotoxinPermeabilityProteinTight junctionVomitoxinAlimentContaminantVomitoxineDiminutionIntestinPerméabilitéMycotoxineFonction barrièreJonction étancheJonction communicanteProtéineClaudine
'The gastrointestinal tract represents the first barrier against food contaminants as well as the first target for these toxicants. Deoxynivalenol (DON) is a mycotoxin that commonly contaminates cereals and causes various toxicological effects. Through consumption of contaminated cereals and cereal products, human and pigs are exposed to this mycotoxin. Using in vitro, ex vivo and in vivo approaches, we investigated the effects of DON on the intestinal epithelium. We demonstrated that, in intestinal epithelial cell lines from porcine (IPEC-1) or human (Caco-2) origin, DON decreases trans-epithelial electrical resistance (TEER) and increases in a time and dose-dependent manner the paracellular permeability to 4 kDa dextran and to pathogenic Escherichia coli across intestinal cell monolayers. In pig explants treated with DON, we also observed an increased permeability of intestinal tissue. These alterations of barrier function were associated with a specific reduction in the expression of claudins, which was also seen in vivo in the jejunum of piglets exposed to DON-contaminated feed. In conclusion, DON alters claudin expression and decreases the barrier function of the intestinal epithelium. Considering that high levels of DON may be present in food or feed, consumption of DON-contaminated food/feed may induce intestinal damage and has consequences for human and animal health.
0041-008XTXAPA9Toxicol. appl. pharmacol.2371The food contaminant deoxynivalenol, decreases intestinal barrier permeability and reduces claudin expressionPINTON (Philippe)NOUGAYREDE (Jean-Philippe)DEL RIO (Juan-Carlos)MORENO (Carolina)MARIN (Daniela E.)FERRIER (Laurent)BRACARENSE (Ana-Paula)KOLF-CLAUW (Martine)OSWALD (Isabelle P.)INRA: UR66ToulouseFRA1 aut.3 aut.4 aut.5 aut.9 aut.UMR 1225ToulouseFRA2 aut.INCDBNABalotestiROU5 aut.UMR1054ToulouseFRA6 aut.Universidade Estadual de LondrinaLondrinaBRA7 aut.Ecole Nationale Vétérinaire, Laboratoire de ToxicologieToulouseFRA8 aut.41-482009ENGINIST90673540001884594200500000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0258698PAToxicology and applied pharmacologyUSA'The gastrointestinal tract represents the first barrier against food contaminants as well as the first target for these toxicants. Deoxynivalenol (DON) is a mycotoxin that commonly contaminates cereals and causes various toxicological effects. Through consumption of contaminated cereals and cereal products, human and pigs are exposed to this mycotoxin. Using in vitro, ex vivo and in vivo approaches, we investigated the effects of DON on the intestinal epithelium. We demonstrated that, in intestinal epithelial cell lines from porcine (IPEC-1) or human (Caco-2) origin, DON decreases trans-epithelial electrical resistance (TEER) and increases in a time and dose-dependent manner the paracellular permeability to 4 kDa dextran and to pathogenic Escherichia coli across intestinal cell monolayers. In pig explants treated with DON, we also observed an increased permeability of intestinal tissue. These alterations of barrier function were associated with a specific reduction in the expression of claudins, which was also seen in vivo in the jejunum of piglets exposed to DON-contaminated feed. In conclusion, DON alters claudin expression and decreases the barrier function of the intestinal epithelium. Considering that high levels of DON may be present in food or feed, consumption of DON-contaminated food/feed may induce intestinal damage and has consequences for human and animal health.002B03JAliment02Food02Alimento02Contaminant03Contaminant03Contaminante03VomitoxineNKFX05VomitoxinNKFX05VomitoxinaNKFX05Diminution06Decrease06Disminución06Intestin08Gut08Intestino08Perméabilité09Permeability09Permeabilidad09Mycotoxine11Mycotoxin11Micotoxina11Fonction barrière12Barrier function12Funcíon barrera12Jonction étanche16Tight junction16Unión estanca16Jonction communicante17Gap junction17Unión comunicante17Protéine18Protein18Proteína18ClaudineCD96ClaudinCD96ToxineToxinToxinaAppareil digestif61Digestive system61Aparato digestivo61Jonction cellulaire62Cell junction62Unión celular62187OTOOTOPASCAL 09-0258698 INISTThe food contaminant deoxynivalenol, decreases intestinal barrier permeability and reduces claudin expressionPINTON (Philippe); NOUGAYREDE (Jean-Philippe); DEL RIO (Juan-Carlos); MORENO (Carolina); MARIN (Daniela E.); FERRIER (Laurent); BRACARENSE (Ana-Paula); KOLF-CLAUW (Martine); OSWALD (Isabelle P.)INRA: UR66/Toulouse/France (1 aut., 3 aut., 4 aut., 5 aut., 9 aut.); UMR 1225/Toulouse/France (2 aut.); INCDBNA/Balotesti/Roumanie (5 aut.); UMR1054/Toulouse/France (6 aut.); Universidade Estadual de Londrina/Londrina/Brésil (7 aut.); Ecole Nationale Vétérinaire, Laboratoire de Toxicologie/Toulouse/France (8 aut.)
Publication en série; Niveau analytique
Toxicology and applied pharmacology; ISSN 0041-008X; Coden TXAPA9; Etats-Unis; Da. 2009; Vol. 237; No. 1; Pp. 41-48; Bibl. 3/4 p.Anglais'The gastrointestinal tract represents the first barrier against food contaminants as well as the first target for these toxicants. Deoxynivalenol (DON) is a mycotoxin that commonly contaminates cereals and causes various toxicological effects. Through consumption of contaminated cereals and cereal products, human and pigs are exposed to this mycotoxin. Using in vitro, ex vivo and in vivo approaches, we investigated the effects of DON on the intestinal epithelium. We demonstrated that, in intestinal epithelial cell lines from porcine (IPEC-1) or human (Caco-2) origin, DON decreases trans-epithelial electrical resistance (TEER) and increases in a time and dose-dependent manner the paracellular permeability to 4 kDa dextran and to pathogenic Escherichia coli across intestinal cell monolayers. In pig explants treated with DON, we also observed an increased permeability of intestinal tissue. These alterations of barrier function were associated with a specific reduction in the expression of claudins, which was also seen in vivo in the jejunum of piglets exposed to DON-contaminated feed. In conclusion, DON alters claudin expression and decreases the barrier function of the intestinal epithelium. Considering that high levels of DON may be present in food or feed, consumption of DON-contaminated food/feed may induce intestinal damage and has consequences for human and animal health.002B03JAliment; Contaminant; Vomitoxine; Diminution; Intestin; Perméabilité; Mycotoxine; Fonction barrière; Jonction étanche; Jonction communicante; Protéine; ClaudineToxine; Appareil digestif; Jonction cellulaireFood; Contaminant; Vomitoxin; Decrease; Gut; Permeability; Mycotoxin; Barrier function; Tight junction; Gap junction; Protein; ClaudinToxin; Digestive system; Cell junctionAlimento; Contaminante; Vomitoxina; Disminución; Intestino; Permeabilidad; Micotoxina; Funcíon barrera; Unión estanca; Unión comunicante; ProteínaINIST-9067.35400018845942005009-0258698
000C43 A Multicenter, Double-Blind Trial of a High-Dose Caspofungin Treatment Regimen versus a Standard Caspofungin Treatment Regimen for Adult Patients with Invasive CandidiasisRobert F. BettsUniversity of RochesterRochester, New YorkUSA1 aut.Marcio NucciUniversity Hospital, Federal UniversityRio de JaneiroBRA2 aut.Deepak TalwarMetro HospitalsNoidaIND3 aut.Marcelo GarecaLehigh Valley HospitalAllentownUSA4 aut.Flavio Queiroz-TellesHospital de Clinicas, Federal University of ParanaParanaBRA5 aut.Roger J. BedimoVeteran Affairs North Texas Health Care SystemDallasUSA6 aut.Raoul HerbrechtUniversity HospitalStrasbourgFRA7 aut.Guillermo Ruiz-PalaciosNational Institute of Medical Sciences and NutritionMexico CityMEX8 aut.Jo-Anne H. YoungUniversity of MinnesotaMinneapolisUSA9 aut.John W. BaddleyUniversity of Alabama at Birmingham and Birmingham Veteran Affairs Medical CenterBirminghamUSA10 aut.Kim M. StrohmaierMerck Research LaboratoriesWest Point, PennsylvaniaUSA11 aut.12 aut.13 aut.14 aut.Kimberly A. TuckerMerck Research LaboratoriesWest Point, PennsylvaniaUSA11 aut.12 aut.13 aut.14 aut.Arlene F. TaylorMerck Research LaboratoriesWest Point, PennsylvaniaUSA11 aut.12 aut.13 aut.14 aut.Nicholas A. KarlsonisMerck Research LaboratoriesWest Point, PennsylvaniaUSA11 aut.12 aut.13 aut.14 aut.09-02611902009PASCAL 09-0261190 INISTPascal:09-0261190001D361058-4838Clin. infect. dis.Clinical infectious diseasesAdultAntifungal agentCandidiasisCaspofunginComparative studyHigh doseHumanStandardsTreatmentCandidoseCaspofungineDose forteTraitementEtude comparativeHommeNormeAdulteAntifongiqueForme invasive
Background. The standard caspofungin treatment regimen (50 mg/day after a 70-mg dose on day 1) is effective and well tolerated for the treatment of invasive candidiasis, but experience with higher doses of caspofungin is limited. We evaluated the safety and efficacy of caspofungin at 3 times the standard dosing regimen. Methods. Patients with proven invasive candidiasis were randomized to receive a standard or high-dose (150 mg/day) caspofungin treatment regimen. Safety was assessed in all patients as treated. Efficacy was assessed as a secondary objective in a full-analysis-set population. A favorable overall response was defined as symptom resolution and microbiological clearance at the end of caspofungin therapy. Results. A total of 204 patients were included in the safety analysis (104 received the standard regimen, and 100 received the high-dose regimen), and 197 were included in the efficacy analysis (102 and 95 in the standard and high-dose treatment groups, respectively). Patient demographic characteristics, neutropenia status (6.7% and 8.0% had neutropenia, respectively), and Acute Physiology and Chronic Health Evaluation II scores (mean, 16.5 and 17, respectively) were similar between treatment groups. Significant drug-related adverse events occurred in 1.9% of patients receiving the standard regimen and 3.0% of patients receiving the high-dose regimen (difference, 1.1%; 95% confidence interval, -4.1% to 6.8%). The most-common drug-related adverse events in the standard and high-dose treatment groups were phlebitis (3.8% and 2.0%, respectively), increased alkaline phosphatase level (6.9% and 2.0%, respectively), and increased aspartate transaminase level (4.0% and 2.0%, respectively). Overall, 71.6% of patients who received the standard regimen and 77.9% of patients who received the high-dose regimen had favorable overall responses (difference, 6.3%; 95% confidence interval, -5.9% to 18.4%; not statistically significant). Mortality at 8 weeks after therapy was similar between groups. Conclusions. Both caspofungin dosing regimens were effective and well tolerated in patients with invasive candidiasis. No safety concerns were found for caspofungin at a dosage of 150 mg/day.
1058-4838CIDIELClin. infect. dis.4812A Multicenter, Double-Blind Trial of a High-Dose Caspofungin Treatment Regimen versus a Standard Caspofungin Treatment Regimen for Adult Patients with Invasive CandidiasisBETTS (Robert F.)NUCCI (Marcio)TALWAR (Deepak)GARECA (Marcelo)QUEIROZ-TELLES (Flavio)BEDIMO (Roger J.)HERBRECHT (Raoul)RUIZ-PALACIOS (Guillermo)YOUNG (Jo-Anne H.)BADDLEY (John W.)STROHMAIER (Kim M.)TUCKER (Kimberly A.)TAYLOR (Arlene F.)KARLSONIS (Nicholas A.)University of RochesterRochester, New YorkUSA1 aut.Lehigh Valley HospitalAllentownUSA4 aut.Merck Research LaboratoriesWest Point, PennsylvaniaUSA11 aut.12 aut.13 aut.14 aut.University of MinnesotaMinneapolisUSA9 aut.Veteran Affairs North Texas Health Care SystemDallasUSA6 aut.University of Alabama at Birmingham and Birmingham Veteran Affairs Medical CenterBirminghamUSA10 aut.University Hospital, Federal UniversityRio de JaneiroBRA2 aut.Hospital de Clinicas, Federal University of ParanaParanaBRA5 aut.Metro HospitalsNoidaIND3 aut.University HospitalStrasbourgFRA7 aut.National Institute of Medical Sciences and NutritionMexico CityMEX8 aut.Caspofungin High-Dose Study GroupINC1676-16842009ENGINIST184073540001882863300900000© 2009 INIST-CNRS. All rights reserved.20 ref.09-0261190PAClinical infectious diseasesUSABackground. The standard caspofungin treatment regimen (50 mg/day after a 70-mg dose on day 1) is effective and well tolerated for the treatment of invasive candidiasis, but experience with higher doses of caspofungin is limited. We evaluated the safety and efficacy of caspofungin at 3 times the standard dosing regimen. Methods. Patients with proven invasive candidiasis were randomized to receive a standard or high-dose (150 mg/day) caspofungin treatment regimen. Safety was assessed in all patients as treated. Efficacy was assessed as a secondary objective in a full-analysis-set population. A favorable overall response was defined as symptom resolution and microbiological clearance at the end of caspofungin therapy. Results. A total of 204 patients were included in the safety analysis (104 received the standard regimen, and 100 received the high-dose regimen), and 197 were included in the efficacy analysis (102 and 95 in the standard and high-dose treatment groups, respectively). Patient demographic characteristics, neutropenia status (6.7% and 8.0% had neutropenia, respectively), and Acute Physiology and Chronic Health Evaluation II scores (mean, 16.5 and 17, respectively) were similar between treatment groups. Significant drug-related adverse events occurred in 1.9% of patients receiving the standard regimen and 3.0% of patients receiving the high-dose regimen (difference, 1.1%; 95% confidence interval, -4.1% to 6.8%). The most-common drug-related adverse events in the standard and high-dose treatment groups were phlebitis (3.8% and 2.0%, respectively), increased alkaline phosphatase level (6.9% and 2.0%, respectively), and increased aspartate transaminase level (4.0% and 2.0%, respectively). Overall, 71.6% of patients who received the standard regimen and 77.9% of patients who received the high-dose regimen had favorable overall responses (difference, 6.3%; 95% confidence interval, -5.9% to 18.4%; not statistically significant). Mortality at 8 weeks after therapy was similar between groups. Conclusions. Both caspofungin dosing regimens were effective and well tolerated in patients with invasive candidiasis. No safety concerns were found for caspofungin at a dosage of 150 mg/day.002B05002B02S04Candidose01Candidiasis01Candidiasis01CaspofungineNKFR04CaspofunginNKFR04CaspofunginaNKFR04Dose forte07High dose07Dosis fuerte07Traitement08Treatment08Tratamiento08Etude comparative09Comparative study09Estudio comparativo09Homme10Human10Hombre10Norme13Standards13Norma13Adulte14Adult14Adulto14Antifongique30Antifungal agent30Antifúngico30Forme invasiveINC86MycoseMycosisMicosisInfectionInfectionInfecciónDérivé de l'échinocandine37Echinocandine derivatives37Echinocandin derivado37195OTOOTOPASCAL 09-0261190 INISTA Multicenter, Double-Blind Trial of a High-Dose Caspofungin Treatment Regimen versus a Standard Caspofungin Treatment Regimen for Adult Patients with Invasive CandidiasisBETTS (Robert F.); NUCCI (Marcio); TALWAR (Deepak); GARECA (Marcelo); QUEIROZ-TELLES (Flavio); BEDIMO (Roger J.); HERBRECHT (Raoul); RUIZ-PALACIOS (Guillermo); YOUNG (Jo-Anne H.); BADDLEY (John W.); STROHMAIER (Kim M.); TUCKER (Kimberly A.); TAYLOR (Arlene F.); KARLSONIS (Nicholas A.)University of Rochester/Rochester, New York/Etats-Unis (1 aut.); Lehigh Valley Hospital/Allentown/Etats-Unis (4 aut.); Merck Research Laboratories/West Point, Pennsylvania/Etats-Unis (11 aut., 12 aut., 13 aut., 14 aut.); University of Minnesota/Minneapolis/Etats-Unis (9 aut.); Veteran Affairs North Texas Health Care System/Dallas/Etats-Unis (6 aut.); University of Alabama at Birmingham and Birmingham Veteran Affairs Medical Center/Birmingham/Etats-Unis (10 aut.); University Hospital, Federal University/Rio de Janeiro/Brésil (2 aut.); Hospital de Clinicas, Federal University of Parana/Parana/Brésil (5 aut.); Metro Hospitals/Noida/Inde (3 aut.); University Hospital/Strasbourg/France (7 aut.); National Institute of Medical Sciences and Nutrition/Mexico City/Mexique (8 aut.)
Publication en série; Niveau analytique
Clinical infectious diseases; ISSN 1058-4838; Coden CIDIEL; Etats-Unis; Da. 2009; Vol. 48; No. 12; Pp. 1676-1684; Bibl. 20 ref.AnglaisBackground. The standard caspofungin treatment regimen (50 mg/day after a 70-mg dose on day 1) is effective and well tolerated for the treatment of invasive candidiasis, but experience with higher doses of caspofungin is limited. We evaluated the safety and efficacy of caspofungin at 3 times the standard dosing regimen. Methods. Patients with proven invasive candidiasis were randomized to receive a standard or high-dose (150 mg/day) caspofungin treatment regimen. Safety was assessed in all patients as treated. Efficacy was assessed as a secondary objective in a full-analysis-set population. A favorable overall response was defined as symptom resolution and microbiological clearance at the end of caspofungin therapy. Results. A total of 204 patients were included in the safety analysis (104 received the standard regimen, and 100 received the high-dose regimen), and 197 were included in the efficacy analysis (102 and 95 in the standard and high-dose treatment groups, respectively). Patient demographic characteristics, neutropenia status (6.7% and 8.0% had neutropenia, respectively), and Acute Physiology and Chronic Health Evaluation II scores (mean, 16.5 and 17, respectively) were similar between treatment groups. Significant drug-related adverse events occurred in 1.9% of patients receiving the standard regimen and 3.0% of patients receiving the high-dose regimen (difference, 1.1%; 95% confidence interval, -4.1% to 6.8%). The most-common drug-related adverse events in the standard and high-dose treatment groups were phlebitis (3.8% and 2.0%, respectively), increased alkaline phosphatase level (6.9% and 2.0%, respectively), and increased aspartate transaminase level (4.0% and 2.0%, respectively). Overall, 71.6% of patients who received the standard regimen and 77.9% of patients who received the high-dose regimen had favorable overall responses (difference, 6.3%; 95% confidence interval, -5.9% to 18.4%; not statistically significant). Mortality at 8 weeks after therapy was similar between groups. Conclusions. Both caspofungin dosing regimens were effective and well tolerated in patients with invasive candidiasis. No safety concerns were found for caspofungin at a dosage of 150 mg/day.002B05; 002B02S04Candidose; Caspofungine; Dose forte; Traitement; Etude comparative; Homme; Norme; Adulte; Antifongique; Forme invasiveMycose; Infection; Dérivé de l'échinocandineCandidiasis; Caspofungin; High dose; Treatment; Comparative study; Human; Standards; Adult; Antifungal agentMycosis; Infection; Echinocandine derivativesCandidiasis; Caspofungina; Dosis fuerte; Tratamiento; Estudio comparativo; Hombre; Norma; Adulto; AntifúngicoINIST-18407.35400018828633009009-0261190
000C44 Techniques de mobilisation des ressources en eau et pratiques d'utilisation en zones arides: bilans, évolutions et perspectivesPatrick Le GoulvenInstitut de recherche pour le développement IRD UMR GEAU (gestion de l'eau, acteurs, usages) Whymper 442 y Coruña Apartado postal 1712857 QuitoECU1 aut.5 aut.Guillaume LacombeInternational Water Management Institute PO Box 4199 NongviengkhamXaythany district VientianeLAO2 aut.Julien BurteFundação Cearense de Meteorologia e Recursos Hidricos - FUNCEME Av. Rui Barbosa1246 FortalezaBRA3 aut.Alain GiodaInstitut de recherche pour le développement, IRD UMR hydroSciences Montpellier Calle Teruel n° 357 MirafloresLimaPER4 aut.Roger CalvezInstitut de recherche pour le développement IRD UMR GEAU (gestion de l'eau, acteurs, usages) Whymper 442 y Coruña Apartado postal 1712857 QuitoECU1 aut.5 aut.09-02618772009PASCAL 09-0261877 INISTPascal:09-0261877001D351147-7806Sécheresse : (Montrouge)Sécheresse : (Montrouge)AcceptanceArid regionCenterCentury 20thGovernmentMexicoOverexploitationReuseTechnical managementWater engineeringarid environmentbalancecostdemanddesalinizationdevelopmentevolutionflowmobilizationpracticeseleniumstoragetechniquesvolumewaterwater resourcesRessource eauTechniqueMobilisationBilanEvolutionDéveloppementPratiqueMilieu arideAménagement hydrauliqueSiècle 20emeStockageEcoulementEauCentreGouvernementGestion techniqueCoûtDésalinisationAcceptationRéutilisationVolumeSurexploitationSéléniumDemandePerteNappe phréatiqueZone arideMexique
Comme dans la plupart des régions, les zones arides ont bénéficié de plusieurs vagues d'aménagements hydroagricoles durant la seconde moitié du XXe siècle pour ralentir, stocker et rendre accessibles des écoulements sporadiques et violents peu utilisables par des ouvrages au fil de l'eau. Cette succession d'aménagements superposés est souvent mal valorisée comme le montrent divers bilans réalisés dans des bassins du Centre tunisien et du Nord Mexique où les retenues collinaires favorisent, avant tout, les pertes évaporatoires. Sur la base de ces constats, les gouvernements ont cherché à améliorer la gestion technique des ouvrages en favorisant les transferts d'eau vers les réservoirs souterrains et cherchent à mobiliser les ressources en eau non conventionnelles avec quelques succès, mais seulement dans des situations spécifiques en raison de leurs coûts élevés (désalinisation), d'une difficile acceptation (réutilisation des eaux usées) ou de leur volume peu important (eau atmosphérique). Toutes ces initiatives n'ont pas arrêté la surexploitation des nappes phréatiques, et peu à peu se mettent en place plusieurs initiatives pour diminuer la demande en eau tout en augmentant la production alimentaire. Cette nouvelle politique finance l'installation des techniques d'irrigation économes (aspersion, goutte-à-goutte, polymères gonflants, conduites verticales, etc.) pour remplacer l'irrigation gravitaire majoritairement utilisée. Après quelques années, il faut bien reconnaître que l'impact de ces nouvelles techniques est moins important que prévu soit à cause d'une utilisation inadéquate, soit par le fait de nouveaux comportements qu'elles ont suscités. Actuellement, les pouvoirs publics testent des outils complémentaires économiques et réglementaires pour rendre plus efficaces ces changements techniques.
1147-7806Sécheresse : (Montrouge)201Techniques de mobilisation des ressources en eau et pratiques d'utilisation en zones arides: bilans, évolutions et perspectivesEau et zones aridesLE GOULVEN (Patrick)LACOMBE (Guillaume)BURTE (Julien)GIODA (Alain)CALVEZ (Roger)SERVAT (Eric)limin.MAHE (Gil)limin.Institut de recherche pour le développement IRD UMR GEAU (gestion de l'eau, acteurs, usages) Whymper 442 y Coruña Apartado postal 1712857 QuitoECU1 aut.5 aut.International Water Management Institute PO Box 4199 NongviengkhamXaythany district VientianeLAO2 aut.Fundação Cearense de Meteorologia e Recursos Hidricos - FUNCEME Av. Rui Barbosa1246 FortalezaBRA3 aut.Institut de recherche pour le développement, IRD UMR hydroSciences Montpellier Calle Teruel n° 357 MirafloresLimaPER4 aut.UMR HydroSciences Montpellier, (CNRS, IRD, UM1, UM2), Maison des Sciences de l'Eau, Université de Montpellier 2, Place Eugène Bataillon34095 MontpellierFRA1 aut.2 aut.17-302009FREengINIST223903540001861638400200000© 2009 INIST-CNRS. All rights reserved.23 ref.09-0261877PASécheresse : (Montrouge)FRAWater resources development techniques and water use practices in arid regions: Balances, evolution and prospectsWater Resources and Arid ZonesComme dans la plupart des régions, les zones arides ont bénéficié de plusieurs vagues d'aménagements hydroagricoles durant la seconde moitié du XXe siècle pour ralentir, stocker et rendre accessibles des écoulements sporadiques et violents peu utilisables par des ouvrages au fil de l'eau. Cette succession d'aménagements superposés est souvent mal valorisée comme le montrent divers bilans réalisés dans des bassins du Centre tunisien et du Nord Mexique où les retenues collinaires favorisent, avant tout, les pertes évaporatoires. Sur la base de ces constats, les gouvernements ont cherché à améliorer la gestion technique des ouvrages en favorisant les transferts d'eau vers les réservoirs souterrains et cherchent à mobiliser les ressources en eau non conventionnelles avec quelques succès, mais seulement dans des situations spécifiques en raison de leurs coûts élevés (désalinisation), d'une difficile acceptation (réutilisation des eaux usées) ou de leur volume peu important (eau atmosphérique). Toutes ces initiatives n'ont pas arrêté la surexploitation des nappes phréatiques, et peu à peu se mettent en place plusieurs initiatives pour diminuer la demande en eau tout en augmentant la production alimentaire. Cette nouvelle politique finance l'installation des techniques d'irrigation économes (aspersion, goutte-à-goutte, polymères gonflants, conduites verticales, etc.) pour remplacer l'irrigation gravitaire majoritairement utilisée. Après quelques années, il faut bien reconnaître que l'impact de ces nouvelles techniques est moins important que prévu soit à cause d'une utilisation inadéquate, soit par le fait de nouveaux comportements qu'elles ont suscités. Actuellement, les pouvoirs publics testent des outils complémentaires économiques et réglementaires pour rendre plus efficaces ces changements techniques.002A32001E01P03226C03Ressource eau01water resources01Recurso agua01Technique02techniques02Mobilisation03mobilization03Bilan04balance04Balance04Evolution05evolution05Développement06development06Pratique07practice07Milieu aride08arid environment08Medio árido08Aménagement hydraulique09Water engineering09Aprovechamiento hidráulico09Siècle 20eme10Century 20th10Siglo 2010Stockage11storage11Almacenamiento11Ecoulement12flow12Eau13water13Agua13Centre14Center14Centro14Gouvernement15Government15Gobierno15Gestion technique16Technical management16Gestión técnica16Coût17cost17Costo17Désalinisation18desalinization18Acceptation20Acceptance20Aceptación20Réutilisation21Reuse21Reutilización21Volume22volume22Volumen22Surexploitation23Overexploitation23Sobreexplotación23Sélénium24selenium24Selenio24Demande25demand25Petición25PerteINC52Nappe phréatiqueINC53Zone aride61Arid region61Zona árida61MexiqueNG62MexicoNG62MéxicoNG62Amérique du NordNorth AmericaAmerica del norte195OTOOTOPASCAL 09-0261877 INISTTechniques de mobilisation des ressources en eau et pratiques d'utilisation en zones arides: bilans, évolutions et perspectives(Water resources development techniques and water use practices in arid regions: Balances, evolution and prospects)LE GOULVEN (Patrick); LACOMBE (Guillaume); BURTE (Julien); GIODA (Alain); CALVEZ (Roger); SERVAT (Eric); MAHE (Gil)Institut de recherche pour le développement IRD UMR GEAU (gestion de l'eau, acteurs, usages) Whymper 442 y Coruña Apartado postal 17/12857 Quito/Equateur (1 aut., 5 aut.); International Water Management Institute PO Box 4199 Nongviengkham/Xaythany district Vientiane/Laos (2 aut.); Fundação Cearense de Meteorologia e Recursos Hidricos - FUNCEME Av. Rui Barbosa/1246 Fortaleza/Brésil (3 aut.); Institut de recherche pour le développement, IRD UMR hydroSciences Montpellier Calle Teruel n° 357 Miraflores/Lima/Pérou (4 aut.); UMR HydroSciences Montpellier, (CNRS, IRD, UM1, UM2), Maison des Sciences de l'Eau, Université de Montpellier 2, Place Eugène Bataillon/34095 Montpellier/France (1 aut., 2 aut.)
Publication en série; Niveau analytique
Sécheresse : (Montrouge); ISSN 1147-7806; France; Da. 2009; Vol. 20; No. 1; Pp. 17-30; Abs. anglais; Bibl. 23 ref.FrançaisComme dans la plupart des régions, les zones arides ont bénéficié de plusieurs vagues d'aménagements hydroagricoles durant la seconde moitié du XXe siècle pour ralentir, stocker et rendre accessibles des écoulements sporadiques et violents peu utilisables par des ouvrages au fil de l'eau. Cette succession d'aménagements superposés est souvent mal valorisée comme le montrent divers bilans réalisés dans des bassins du Centre tunisien et du Nord Mexique où les retenues collinaires favorisent, avant tout, les pertes évaporatoires. Sur la base de ces constats, les gouvernements ont cherché à améliorer la gestion technique des ouvrages en favorisant les transferts d'eau vers les réservoirs souterrains et cherchent à mobiliser les ressources en eau non conventionnelles avec quelques succès, mais seulement dans des situations spécifiques en raison de leurs coûts élevés (désalinisation), d'une difficile acceptation (réutilisation des eaux usées) ou de leur volume peu important (eau atmosphérique). Toutes ces initiatives n'ont pas arrêté la surexploitation des nappes phréatiques, et peu à peu se mettent en place plusieurs initiatives pour diminuer la demande en eau tout en augmentant la production alimentaire. Cette nouvelle politique finance l'installation des techniques d'irrigation économes (aspersion, goutte-à-goutte, polymères gonflants, conduites verticales, etc.) pour remplacer l'irrigation gravitaire majoritairement utilisée. Après quelques années, il faut bien reconnaître que l'impact de ces nouvelles techniques est moins important que prévu soit à cause d'une utilisation inadéquate, soit par le fait de nouveaux comportements qu'elles ont suscités. Actuellement, les pouvoirs publics testent des outils complémentaires économiques et réglementaires pour rendre plus efficaces ces changements techniques.002A32; 001E01P03; 226C03Ressource eau; Technique; Mobilisation; Bilan; Evolution; Développement; Pratique; Milieu aride; Aménagement hydraulique; Siècle 20eme; Stockage; Ecoulement; Eau; Centre; Gouvernement; Gestion technique; Coût; Désalinisation; Acceptation; Réutilisation; Volume; Surexploitation; Sélénium; Demande; Perte; Nappe phréatique; Zone aride; MexiqueAmérique du Nordwater resources; techniques; mobilization; balance; evolution; development; practice; arid environment; Water engineering; Century 20th; storage; flow; water; Center; Government; Technical management; cost; desalinization; Acceptance; Reuse; volume; Overexploitation; selenium; demand; Arid region; MexicoNorth AmericaRecurso agua; Balance; Medio árido; Aprovechamiento hidráulico; Siglo 20; Almacenamiento; Agua; Centro; Gobierno; Gestión técnica; Costo; Aceptación; Reutilización; Volumen; Sobreexplotación; Selenio; Petición; Zona árida; MéxicoINIST-22390.35400018616384002009-0261877
000C45 A quadratic triangle of the Hermite type for second order elliptic problemsVitoriano RuasInstitut Jean Le Rond d'Alembert, Université P. & M. Curie, couloir 55-65, 4ème étage, 4 place Jussieu75252 ParisFRA1 aut.Department of Computer Science, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São DomingosNiterói-RJ, CEP 24.210-240BRA1 aut.2 aut.José Henrique Carneiro De AraujoDepartment of Computer Science, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São DomingosNiterói-RJ, CEP 24.210-240BRA1 aut.2 aut.PGMEC, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São DomingosNiterói-RJ, CEP 24.210-240BRA2 aut.09-02619062009PASCAL 09-0261906 INISTPascal:09-0261906001D340044-2267Z. angew. Math. Mech.Zeitschrift für angewandte Mathematik und MechanikApplied mathematicsApplied mechanicsApproximationElliptic equationFinite element methodSecond order equationTriangleTriangular finite elementTwo-dimensional calculationsEquation ordre 2Elément fini triangulaireMéthode élément finiCalcul 2 dimensionsApproximationEquation elliptiqueMathématiques appliquéesMécanique appliquéeDomaine borné35JxxTriangle
A triangular finite element method of the Hermite type for solving second order elliptic equations in two-dimensional bounded domains is introduced. It can be viewed as a modification of the Morley triangle [8], but contrary to this element it provides converging approximations for this class of problems. The new element is particularly useful in situations where flux or normal stress continuity across interelement boundaries is required.
0044-2267ZAMMAXZ. angew. Math. Mech.896A quadratic triangle of the Hermite type for second order elliptic problemsRUAS (Vitoriano)CARNEIRO DE ARAUJO (José Henrique)Institut Jean Le Rond d'Alembert, Université P. & M. Curie, couloir 55-65, 4ème étage, 4 place Jussieu75252 ParisFRA1 aut.Department of Computer Science, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São DomingosNiterói-RJ, CEP 24.210-240BRA1 aut.2 aut.PGMEC, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São DomingosNiterói-RJ, CEP 24.210-240BRA2 aut.445-4532009ENGINIST3773540001879247400200000© 2009 INIST-CNRS. All rights reserved.11 ref.09-0261906PAZeitschrift für angewandte Mathematik und MechanikDEUA triangular finite element method of the Hermite type for solving second order elliptic equations in two-dimensional bounded domains is introduced. It can be viewed as a modification of the Morley triangle [8], but contrary to this element it provides converging approximations for this class of problems. The new element is particularly useful in situations where flux or normal stress continuity across interelement boundaries is required.001A02I01001A02E08Equation ordre 217Second order equation17Ecuación orden 217Elément fini triangulaire18Triangular finite element18Elemento finito triangular18Méthode élément fini19Finite element method19Método elemento finito19Calcul 2 dimensions20Two-dimensional calculations20Approximation21Approximation21Aproximación21Equation elliptique22Elliptic equation22Ecuación elíptica22Mathématiques appliquées23Applied mathematics23Matemáticas aplicadas23Mécanique appliquée24Applied mechanics24Mecánica aplicada24Domaine bornéINC7035JxxINC71TriangleCD96TriangleCD96195OTOOTOPASCAL 09-0261906 INISTA quadratic triangle of the Hermite type for second order elliptic problemsRUAS (Vitoriano); CARNEIRO DE ARAUJO (José Henrique)Institut Jean Le Rond d'Alembert, Université P. & M. Curie, couloir 55-65, 4ème étage, 4 place Jussieu/75252 Paris/France (1 aut.); Department of Computer Science, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São Domingos/Niterói-RJ, CEP 24.210-240/Brésil (1 aut., 2 aut.); PGMEC, Universidade Federal Fluminense, rua Passo da Pátria, 156, Bloco E, 3° andar, São Domingos/Niterói-RJ, CEP 24.210-240/Brésil (2 aut.)
Publication en série; Niveau analytique
Zeitschrift für angewandte Mathematik und Mechanik; ISSN 0044-2267; Coden ZAMMAX; Allemagne; Da. 2009; Vol. 89; No. 6; Pp. 445-453; Bibl. 11 ref.AnglaisA triangular finite element method of the Hermite type for solving second order elliptic equations in two-dimensional bounded domains is introduced. It can be viewed as a modification of the Morley triangle [8], but contrary to this element it provides converging approximations for this class of problems. The new element is particularly useful in situations where flux or normal stress continuity across interelement boundaries is required.001A02I01; 001A02E08Equation ordre 2; Elément fini triangulaire; Méthode élément fini; Calcul 2 dimensions; Approximation; Equation elliptique; Mathématiques appliquées; Mécanique appliquée; Domaine borné; 35Jxx; TriangleSecond order equation; Triangular finite element; Finite element method; Two-dimensional calculations; Approximation; Elliptic equation; Applied mathematics; Applied mechanics; TriangleEcuación orden 2; Elemento finito triangular; Método elemento finito; Aproximación; Ecuación elíptica; Matemáticas aplicadas; Mecánica aplicadaINIST-377.35400018792474002009-0261906
000C46 Effects of dietary protein concentration and amino acid supplementation on the feeding behavior of multiparous lactating sows in a tropical humid climateB. A. N. SilvaInstitut National de la Recherche Agronomique (INRA), Unité de Recherches Zootechniques INRA UR14397170 Petit Bourg , French West IndiesGLP1 aut.6 aut.Animal Science Department/Departamento de Zootecnia, Universidade Federal de Viçosa (UFV)36571-000 Viçosa, Minas GeraisBRA1 aut.3 aut.4 aut.J. NobletINRA, UMR Systèmcs d'Elevage, Nutrition Animale et Humaine INRA UMR 107935590 St GillesFRA2 aut.R. F. M. OliveiraAnimal Science Department/Departamento de Zootecnia, Universidade Federal de Viçosa (UFV)36571-000 Viçosa, Minas GeraisBRA1 aut.3 aut.4 aut.J. L. DonzeleAnimal Science Department/Departamento de Zootecnia, Universidade Federal de Viçosa (UFV)36571-000 Viçosa, Minas GeraisBRA1 aut.3 aut.4 aut.Y. PrimotAjinomoto Eurolysine S.A.S. 153, rue de Courcelles75817 ParisFRA5 aut.D. RenaudeauInstitut National de la Recherche Agronomique (INRA), Unité de Recherches Zootechniques INRA UR14397170 Petit Bourg , French West IndiesGLP1 aut.6 aut.09-02683352009PASCAL 09-0268335 INISTPascal:09-0268335001D330021-8812J. anim. sci.Journal of animal scienceConcentration effectFeeding behaviorFemaleHumid climateLactationPigProteinSupplementationTropical climateEffet concentrationProtéineSupplémentationComportement alimentaireLactationFemellePorcClimat tropicalClimat humide
Forty-seven mixed-parity Large White sows were used to determine the effect of diets with reduced CP content or supplemented with essential AA on 28-d lactation feeding behavior under humid tropical climatic conditions. The study was conducted at the INRA experimental facilities in Guadeloupe, French West Indies (latitude 16° N, longitude 61° W) between February 2007 and January 2008. Two seasons were distinguished a posteriori from climatic measurements continuously recorded in the open-front farrowing room. The average ambient temperature and average daily relative humidity for the warm season were 23.6°C and 93.8%, respectively. The corresponding values for the hot season were 26.1°C and 93.7%. The dietary experimental treatments were a normal protein diet (17.3%), a low protein diet (14.1%), and a normal protein diet supplemented with essential AA (17.6%). No interaction between season and diet composition was found for all criteria. Average daily feed intake was less (P < 0.01) during the hot season (4,559 ± 161 vs. 5,713 ± 204 kg/d). Meal size was reduced during the hot season (542 ± 37 vs. 757 ± 47 g/meal; P < 0.01). Daily ingestion time (45.5 ± 3.2 vs. 55.8 ± 4.0 min/d; P < 0.05) was less in the hot season. Meal size was reduced during the hot season at night (P < 0.01). In both seasons, daily feed intake, feed ingestion, and rate of feed intake were less (P < 0.01) during the nocturnal period than during the diurnal period. The number of meals per day was not affected (P > 0.10) by season or diet composition. Daily feed intake was greater for the sows fed the low protein diet when compared with normal protein treatments (P < 0.05). Duration of standing was not affected by diet or season (P > 0.05), and averaged 126 ± 35 min/d. This study confirms that feeding behavior variables of the lactating sow are affected by seasonal pavariations of the tropical climate. Irrespective of season, the reduction of CP content improved feed consumption under tropical conditions.
0021-8812J. anim. sci.876Effects of dietary protein concentration and amino acid supplementation on the feeding behavior of multiparous lactating sows in a tropical humid climateSILVA (B. A. N.)NOBLET (J.)OLIVEIRA (R. F. M.)DONZELE (J. L.)PRIMOT (Y.)RENAUDEAU (D.)Institut National de la Recherche Agronomique (INRA), Unité de Recherches Zootechniques INRA UR14397170 Petit Bourg , French West IndiesGLP1 aut.6 aut.Animal Science Department/Departamento de Zootecnia, Universidade Federal de Viçosa (UFV)36571-000 Viçosa, Minas GeraisBRA1 aut.3 aut.4 aut.INRA, UMR Systèmcs d'Elevage, Nutrition Animale et Humaine INRA UMR 107935590 St GillesFRA2 aut.Ajinomoto Eurolysine S.A.S. 153, rue de Courcelles75817 ParisFRA5 aut.2104-21122009ENGINIST32473540001885075103100000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0268335PAJournal of animal scienceUSAForty-seven mixed-parity Large White sows were used to determine the effect of diets with reduced CP content or supplemented with essential AA on 28-d lactation feeding behavior under humid tropical climatic conditions. The study was conducted at the INRA experimental facilities in Guadeloupe, French West Indies (latitude 16° N, longitude 61° W) between February 2007 and January 2008. Two seasons were distinguished a posteriori from climatic measurements continuously recorded in the open-front farrowing room. The average ambient temperature and average daily relative humidity for the warm season were 23.6°C and 93.8%, respectively. The corresponding values for the hot season were 26.1°C and 93.7%. The dietary experimental treatments were a normal protein diet (17.3%), a low protein diet (14.1%), and a normal protein diet supplemented with essential AA (17.6%). No interaction between season and diet composition was found for all criteria. Average daily feed intake was less (P < 0.01) during the hot season (4,559 ± 161 vs. 5,713 ± 204 kg/d). Meal size was reduced during the hot season (542 ± 37 vs. 757 ± 47 g/meal; P < 0.01). Daily ingestion time (45.5 ± 3.2 vs. 55.8 ± 4.0 min/d; P < 0.05) was less in the hot season. Meal size was reduced during the hot season at night (P < 0.01). In both seasons, daily feed intake, feed ingestion, and rate of feed intake were less (P < 0.01) during the nocturnal period than during the diurnal period. The number of meals per day was not affected (P > 0.10) by season or diet composition. Daily feed intake was greater for the sows fed the low protein diet when compared with normal protein treatments (P < 0.05). Duration of standing was not affected by diet or season (P > 0.05), and averaged 126 ± 35 min/d. This study confirms that feeding behavior variables of the lactating sow are affected by seasonal pavariations of the tropical climate. Irrespective of season, the reduction of CP content improved feed consumption under tropical conditions.002A36C03Effet concentration01Concentration effect01Efecto concentración01Protéine02Protein02Proteína02Supplémentation10Supplementation10Suplementación10Comportement alimentaire19Feeding behavior19Conducta alimenticia19Lactation20Lactation20Lactación20Femelle24Female24Hembra24Porc26Pig26Cerdo26Climat tropical48Tropical climate48Clima tropical48Climat humide53Humid climate53Clima húmedo53Alimentation08Feeding08Alimentación08ArtiodactylaNSArtiodactylaNSArtiodactylaNSUngulataNSUngulataNSUngulataNSMammaliaNSMammaliaNSMammaliaNSVertebrataNSVertebrataNSVertebrataNSAnimal élevage49Farming animal49Animal cría49Animal à viande50Meat animals50Animales de carne50195OTOOTOPASCAL 09-0268335 INISTEffects of dietary protein concentration and amino acid supplementation on the feeding behavior of multiparous lactating sows in a tropical humid climateSILVA (B. A. N.); NOBLET (J.); OLIVEIRA (R. F. M.); DONZELE (J. L.); PRIMOT (Y.); RENAUDEAU (D.)Institut National de la Recherche Agronomique (INRA), Unité de Recherches Zootechniques INRA UR143/97170 Petit Bourg , French West Indies/Guadeloupe (1 aut., 6 aut.); Animal Science Department/Departamento de Zootecnia, Universidade Federal de Viçosa (UFV)/36571-000 Viçosa, Minas Gerais/Brésil (1 aut., 3 aut., 4 aut.); INRA, UMR Systèmcs d'Elevage, Nutrition Animale et Humaine INRA UMR 1079/35590 St Gilles/France (2 aut.); Ajinomoto Eurolysine S.A.S. 153, rue de Courcelles/75817 Paris/France (5 aut.)
Publication en série; Niveau analytique
Journal of animal science; ISSN 0021-8812; Etats-Unis; Da. 2009; Vol. 87; No. 6; Pp. 2104-2112; Bibl. 1/2 p.AnglaisForty-seven mixed-parity Large White sows were used to determine the effect of diets with reduced CP content or supplemented with essential AA on 28-d lactation feeding behavior under humid tropical climatic conditions. The study was conducted at the INRA experimental facilities in Guadeloupe, French West Indies (latitude 16° N, longitude 61° W) between February 2007 and January 2008. Two seasons were distinguished a posteriori from climatic measurements continuously recorded in the open-front farrowing room. The average ambient temperature and average daily relative humidity for the warm season were 23.6°C and 93.8%, respectively. The corresponding values for the hot season were 26.1°C and 93.7%. The dietary experimental treatments were a normal protein diet (17.3%), a low protein diet (14.1%), and a normal protein diet supplemented with essential AA (17.6%). No interaction between season and diet composition was found for all criteria. Average daily feed intake was less (P < 0.01) during the hot season (4,559 ± 161 vs. 5,713 ± 204 kg/d). Meal size was reduced during the hot season (542 ± 37 vs. 757 ± 47 g/meal; P < 0.01). Daily ingestion time (45.5 ± 3.2 vs. 55.8 ± 4.0 min/d; P < 0.05) was less in the hot season. Meal size was reduced during the hot season at night (P < 0.01). In both seasons, daily feed intake, feed ingestion, and rate of feed intake were less (P < 0.01) during the nocturnal period than during the diurnal period. The number of meals per day was not affected (P > 0.10) by season or diet composition. Daily feed intake was greater for the sows fed the low protein diet when compared with normal protein treatments (P < 0.05). Duration of standing was not affected by diet or season (P > 0.05), and averaged 126 ± 35 min/d. This study confirms that feeding behavior variables of the lactating sow are affected by seasonal pavariations of the tropical climate. Irrespective of season, the reduction of CP content improved feed consumption under tropical conditions.002A36C03Effet concentration; Protéine; Supplémentation; Comportement alimentaire; Lactation; Femelle; Porc; Climat tropical; Climat humideAlimentation; Artiodactyla; Ungulata; Mammalia; Vertebrata; Animal élevage; Animal à viandeConcentration effect; Protein; Supplementation; Feeding behavior; Lactation; Female; Pig; Tropical climate; Humid climateFeeding; Artiodactyla; Ungulata; Mammalia; Vertebrata; Farming animal; Meat animalsEfecto concentración; Proteína; Suplementación; Conducta alimenticia; Lactación; Hembra; Cerdo; Clima tropical; Clima húmedoINIST-3247.35400018850751031009-0268335
000C47 A new method using laser induced fluorescence quenching for studying metal complexes in the solid state applied to Cr<sup>III</sup>, Cu<sup>II</sup> and Pb<sup>II</sup> in sandy soilsP. MerdyUniversity of Toulon, Department of Chemistry, BP2013283957 La GardeFRA1 aut.2 aut.5 aut.L. Tarchouna GharbiUniversity of Toulon, Department of Chemistry, BP2013283957 La GardeFRA1 aut.2 aut.5 aut.D. M. P. MiloriEmbrapa Agricultural Instrumentation, C.P.741CEP: 13560-970, São Carlos, SPBRA3 aut.4 aut.R. A. S. RibeiroEmbrapa Agricultural Instrumentation, C.P.741CEP: 13560-970, São Carlos, SPBRA3 aut.4 aut.Y. LucasUniversity of Toulon, Department of Chemistry, BP2013283957 La GardeFRA1 aut.2 aut.5 aut.09-02699732009PASCAL 09-0269973 INISTPascal:09-0269973001D320016-7061Geoderma : (Amst.)Geoderma : (Amsterdam)Adsorption isothermFranceLaserLaser induced fluorescenceMetal ionModelingSolidSolid stateadsorptionchromiumconcentrationcopperexperimental studiesheavy metalslaser methodsleadmetalsmodelsnew methodsorganic materialspHsandy soilssorptionMéthode nouvelleChromeFluorescence induite par laserElément métalliqueMétal lourdEtat solideSol sableuxEtude expérimentaleAdsorptionSolideCuivreMéthode laserLaserPlombMatière organiqueConcentrationIsotherme adsorptionSorptionPHIon métalliqueModèleModélisationIle PorquerollesFrance
We achieved the first laser induced fluorescence (LIF) quenching experiment in solid soil samples, excited by the 457 nm Ar laser emission line. The natural fluorescence of soil, due to Natural Organic Matter (NOM) was found to be effectively quenched due to the presence of CrIII, CuII and PbII complexed to the soil. The presence of these quenching agents and their concentrations were determined independently. Batch sorption isotherms for CuII, CrIII, PbII were used at fixed pH with increasing amount of metal ions for monitoring the quenching of the fluorescence signal. A relationship was found, based on the model developed in solution by Ryan and Weber [Ryan, D.K., Weber, J.H., 1982. Fluorescence quenching titration for determination of complexing capacities and stability constants of fulvic acid. Anal. Chem., 54: 986-990] that enabled this solid-state UF technique to rapidly determine complexing parameters in a non-destructive way. Modelling of the fluorescent response upon metal addition on solid samples led to the conditional stability constant of the soil-metal complexes and binding site concentration values of the soil. It allowed, in our context, to predict the relative mobility of these three metal ions in the environment, when they are interacting with the solid phase of soil. We believe this technique to be applicable to other metals binding with the NOM occurring in soil (Cd, Co, Ni, Fe, Hg, Mn, V, etc) and find use in other areas such as environmental metal contamination monitoring and geo-chemical prospecting.
0016-7061GEDMABGeoderma : (Amst.)1501-2A new method using laser induced fluorescence quenching for studying metal complexes in the solid state applied to CrIII, CuII and PbII in sandy soilsMERDY (P.)TARCHOUNA GHARBI (L.)MILORI (D. M. P.)RIBEIRO (R. A. S.)LUCAS (Y.)University of Toulon, Department of Chemistry, BP2013283957 La GardeFRA1 aut.2 aut.5 aut.Embrapa Agricultural Instrumentation, C.P.741CEP: 13560-970, São Carlos, SPBRA3 aut.4 aut.179-1872009ENGINIST36073540001867986102100000© 2009 INIST-CNRS. All rights reserved.1 p.09-0269973PPRAGeoderma : (Amsterdam)NLDWe achieved the first laser induced fluorescence (LIF) quenching experiment in solid soil samples, excited by the 457 nm Ar laser emission line. The natural fluorescence of soil, due to Natural Organic Matter (NOM) was found to be effectively quenched due to the presence of CrIII, CuII and PbII complexed to the soil. The presence of these quenching agents and their concentrations were determined independently. Batch sorption isotherms for CuII, CrIII, PbII were used at fixed pH with increasing amount of metal ions for monitoring the quenching of the fluorescence signal. A relationship was found, based on the model developed in solution by Ryan and Weber [Ryan, D.K., Weber, J.H., 1982. Fluorescence quenching titration for determination of complexing capacities and stability constants of fulvic acid. Anal. Chem., 54: 986-990] that enabled this solid-state UF technique to rapidly determine complexing parameters in a non-destructive way. Modelling of the fluorescent response upon metal addition on solid samples led to the conditional stability constant of the soil-metal complexes and binding site concentration values of the soil. It allowed, in our context, to predict the relative mobility of these three metal ions in the environment, when they are interacting with the solid phase of soil. We believe this technique to be applicable to other metals binding with the NOM occurring in soil (Cd, Co, Ni, Fe, Hg, Mn, V, etc) and find use in other areas such as environmental metal contamination monitoring and geo-chemical prospecting.002A32001E01P03001E01B03226C03220B03Méthode nouvelle01new methods01Método nuevo01Chrome02chromium02Cromo02Fluorescence induite par laser03Laser induced fluorescence03Fluorescencia inducida por laser03Elément métallique04metals04Elemento metálico04Métal lourd05heavy metals05Metal pesado05Etat solide06Solid state06Estado sólido06Sol sableuxNT07sandy soilsNT07Etude expérimentale08experimental studies08Adsorption09adsorption09Adsorción09Solide10Solid10Sólido10Cuivre11copper11Cobre11Méthode laser12laser methods12Laser12Laser13Laser13Láser13Plomb14lead14Plomo14Matière organique15organic materials15Materia orgánica15Concentration16concentration16Concentración16Isotherme adsorption17Adsorption isotherm17Isotermo adsorción17Sorption18sorption18Sorción18PH19pH19pH19Ion métallique20Metal ion20Ión metálico20Modèle23models23Modelo23Modélisation24Modeling24Modelización24Ile PorquerollesINC52FranceNG61FranceNG61FranciaNG61SolNTsoilsNTSueloNTEurope OuestNGWestern EuropeNGEuropa del OesteNGEurope564Europe564Europa564195PASCAL 09-0269973 INISTA new method using laser induced fluorescence quenching for studying metal complexes in the solid state applied to CrIII, CuII and PbII in sandy soilsMERDY (P.); TARCHOUNA GHARBI (L.); MILORI (D. M. P.); RIBEIRO (R. A. S.); LUCAS (Y.)University of Toulon, Department of Chemistry, BP20132/83957 La Garde/France (1 aut., 2 aut., 5 aut.); Embrapa Agricultural Instrumentation, C.P.741/CEP: 13560-970, São Carlos, SP/Brésil (3 aut., 4 aut.)
Publication en série; Papier de recherche; Niveau analytique
Geoderma : (Amsterdam); ISSN 0016-7061; Coden GEDMAB; Pays-Bas; Da. 2009; Vol. 150; No. 1-2; Pp. 179-187; Bibl. 1 p.AnglaisWe achieved the first laser induced fluorescence (LIF) quenching experiment in solid soil samples, excited by the 457 nm Ar laser emission line. The natural fluorescence of soil, due to Natural Organic Matter (NOM) was found to be effectively quenched due to the presence of CrIII, CuII and PbII complexed to the soil. The presence of these quenching agents and their concentrations were determined independently. Batch sorption isotherms for CuII, CrIII, PbII were used at fixed pH with increasing amount of metal ions for monitoring the quenching of the fluorescence signal. A relationship was found, based on the model developed in solution by Ryan and Weber [Ryan, D.K., Weber, J.H., 1982. Fluorescence quenching titration for determination of complexing capacities and stability constants of fulvic acid. Anal. Chem., 54: 986-990] that enabled this solid-state UF technique to rapidly determine complexing parameters in a non-destructive way. Modelling of the fluorescent response upon metal addition on solid samples led to the conditional stability constant of the soil-metal complexes and binding site concentration values of the soil. It allowed, in our context, to predict the relative mobility of these three metal ions in the environment, when they are interacting with the solid phase of soil. We believe this technique to be applicable to other metals binding with the NOM occurring in soil (Cd, Co, Ni, Fe, Hg, Mn, V, etc) and find use in other areas such as environmental metal contamination monitoring and geo-chemical prospecting.002A32; 001E01P03; 001E01B03; 226C03; 220B03Méthode nouvelle; Chrome; Fluorescence induite par laser; Elément métallique; Métal lourd; Etat solide; Sol sableux; Etude expérimentale; Adsorption; Solide; Cuivre; Méthode laser; Laser; Plomb; Matière organique; Concentration; Isotherme adsorption; Sorption; PH; Ion métallique; Modèle; Modélisation; Ile Porquerolles; FranceSol; Europe Ouest; Europenew methods; chromium; Laser induced fluorescence; metals; heavy metals; Solid state; sandy soils; experimental studies; adsorption; Solid; copper; laser methods; Laser; lead; organic materials; concentration; Adsorption isotherm; sorption; pH; Metal ion; models; Modeling; Francesoils; Western Europe; EuropeMétodo nuevo; Cromo; Fluorescencia inducida por laser; Elemento metálico; Metal pesado; Estado sólido; Adsorción; Sólido; Cobre; Laser; Láser; Plomo; Materia orgánica; Concentración; Isotermo adsorción; Sorción; pH; Ión metálico; Modelo; Modelización; FranciaINIST-3607.35400018679861021009-0269973
000C48 Modeling a multi-queue network node with a fuzzy predictorEdgard JamhourPUC-PRBRA1 aut.2 aut.Manoel C. PennaPUC-PRBRA1 aut.2 aut.Ricardo NabhenParis VIFRA3 aut.4 aut.Guy PujolleParis VIFRA3 aut.4 aut.09-02707982009PASCAL 09-0270798 INISTPascal:09-0270798001D310165-0114Fuzzy sets syst.Fuzzy sets and systemsDistribution functionEngineeringFuzzy setFuzzy systemInformation processingNon linear programmingQueueFile attenteFonction répartitionProgrammation non linéaireSystème flouTraitement informationEnsemble flouIngénierie51E24
Capacity planning of IP-based networks is a difficult task. Ideally, in order to estimate the maximum amount of traffic that can be carried by the network, without violating QoS requirements such as end-to-end delay and packet loss, it is necessary to determine the queue length distribution of the network nodes under different traffic conditions. When per-flow guarantees are required (e.g., VoIP traffic), it is also necessary to determine the impact of the queue behavior on the performance of individual flows. Analytical models for queue length distribution are available only for relatively simple traffic patterns. This paper proposes a generic method for building a fuzzy predictor for modeling the behavior of a DiffServ node with multiple queues. The method combines nonlinear programming (NLP) and simulation to build a fuzzy predictor capable of determining the performance of a DiffServ node subjected to both per-flow and aggregated performance guarantees. This approach does not require deriving an analytical model, and can be applied to any type of traffic. In this paper, we employ the fuzzy approach to model the behavior of a multi-queue node where (aggregated ON-OFF) VoIP traffic and (self-similar) data traffic compete for the network resources.
0165-0114FSSYD8Fuzzy sets syst.16013Modeling a multi-queue network node with a fuzzy predictorJAMHOUR (Edgard)PENNA (Manoel C.)NABHEN (Ricardo)PUJOLLE (Guy)PUC-PRBRA1 aut.2 aut.Paris VIFRA3 aut.4 aut.1902-19282009ENGINIST180033540001879514700600000© 2009 INIST-CNRS. All rights reserved.35 ref.09-0270798PAFuzzy sets and systemsNLDCapacity planning of IP-based networks is a difficult task. Ideally, in order to estimate the maximum amount of traffic that can be carried by the network, without violating QoS requirements such as end-to-end delay and packet loss, it is necessary to determine the queue length distribution of the network nodes under different traffic conditions. When per-flow guarantees are required (e.g., VoIP traffic), it is also necessary to determine the impact of the queue behavior on the performance of individual flows. Analytical models for queue length distribution are available only for relatively simple traffic patterns. This paper proposes a generic method for building a fuzzy predictor for modeling the behavior of a DiffServ node with multiple queues. The method combines nonlinear programming (NLP) and simulation to build a fuzzy predictor capable of determining the performance of a DiffServ node subjected to both per-flow and aggregated performance guarantees. This approach does not require deriving an analytical model, and can be applied to any type of traffic. In this paper, we employ the fuzzy approach to model the behavior of a multi-queue node where (aggregated ON-OFF) VoIP traffic and (self-similar) data traffic compete for the network resources.001D02A08001D04A02001D03G02A6001D02D02File attente17Queue17Fila espera17Fonction répartition18Distribution function18Función distribución18Programmation non linéaire19Non linear programming19Programación no lineal19Système flou20Fuzzy system20Sistema difuso20Traitement information21Information processing21Procesamiento información21Ensemble flou22Fuzzy set22Conjunto difuso22Ingénierie23Engineering23Ingeniería2351E24INC70201OTOOTOPASCAL 09-0270798 INISTModeling a multi-queue network node with a fuzzy predictorJAMHOUR (Edgard); PENNA (Manoel C.); NABHEN (Ricardo); PUJOLLE (Guy)PUC-PR/Brésil (1 aut., 2 aut.); Paris VI/France (3 aut., 4 aut.)
Publication en série; Niveau analytique
Fuzzy sets and systems; ISSN 0165-0114; Coden FSSYD8; Pays-Bas; Da. 2009; Vol. 160; No. 13; Pp. 1902-1928; Bibl. 35 ref.AnglaisCapacity planning of IP-based networks is a difficult task. Ideally, in order to estimate the maximum amount of traffic that can be carried by the network, without violating QoS requirements such as end-to-end delay and packet loss, it is necessary to determine the queue length distribution of the network nodes under different traffic conditions. When per-flow guarantees are required (e.g., VoIP traffic), it is also necessary to determine the impact of the queue behavior on the performance of individual flows. Analytical models for queue length distribution are available only for relatively simple traffic patterns. This paper proposes a generic method for building a fuzzy predictor for modeling the behavior of a DiffServ node with multiple queues. The method combines nonlinear programming (NLP) and simulation to build a fuzzy predictor capable of determining the performance of a DiffServ node subjected to both per-flow and aggregated performance guarantees. This approach does not require deriving an analytical model, and can be applied to any type of traffic. In this paper, we employ the fuzzy approach to model the behavior of a multi-queue node where (aggregated ON-OFF) VoIP traffic and (self-similar) data traffic compete for the network resources.001D02A08; 001D04A02; 001D03G02A6; 001D02D02File attente; Fonction répartition; Programmation non linéaire; Système flou; Traitement information; Ensemble flou; Ingénierie; 51E24Queue; Distribution function; Non linear programming; Fuzzy system; Information processing; Fuzzy set; EngineeringFila espera; Función distribución; Programación no lineal; Sistema difuso; Procesamiento información; Conjunto difuso; IngenieríaINIST-18003.35400018795147006009-0270798
000C49 Reduced valve replacement surgery and complication rate in Staphylococcus aureus endocarditis patients receiving acetyl-salicylic acidDamon P. EisenVictorian Infectious Diseases Service, Royal Melbourne Hospital, Grattan StParkville, Victoria 3050AUS1 aut.3 aut.7 aut.G. Ralph CoreyDuke University Medical CenterDurham, NCUSA2 aut.4 aut.6 aut.19 aut.Emma S. McbrydeVictorian Infectious Diseases Service, Royal Melbourne Hospital, Grattan StParkville, Victoria 3050AUS1 aut.3 aut.7 aut.Vance G. FowlerDuke University Medical CenterDurham, NCUSA2 aut.4 aut.6 aut.19 aut.Jose M. MiroHospital Clinic - Institut d'Investigacions Biomèdiques August Pi i Sunyer - University of BarcelonaBarcelonaESP5 aut.Chris H. CabellDuke University Medical CenterDurham, NCUSA2 aut.4 aut.6 aut.19 aut.Alan C. StreetVictorian Infectious Diseases Service, Royal Melbourne Hospital, Grattan StParkville, Victoria 3050AUS1 aut.3 aut.7 aut.Marcelo Goulart PaivaHospital 9 de JulhoSão PauloBRA8 aut.Adina IonacVictor Babes University of Medicine and PharmacyTimisoarROU9 aut.Ru-San TanNational HospitalSingaporeSGP10 aut.Christophe TribouilloySouth Hospital AmiensAmiensFRA11 aut.Orathai PachiratKhon Kaen UniversityKhon KaenTHA12 aut.Sandra Braun JonesHosp. Clínico Pont. Universidad Católica de ChileSantiagoCHL13 aut.Natalia ChipiginaRussian Medical State UniversityMoscowRUS14 aut.Christoph NaberUniversity EssenEssenDEU15 aut.Angelo PanSpedali Civili - Università di BresciaBresciaITA16 aut.Veronica RavasioOspedali Riuniti di BergamoBergamoITA17 aut.Rainer GattringerDivision of Infectious Diseases and Tropical Medicine, Medical University of ViennaViennaAUT18 aut.Vivian H. ChuDuke University Medical CenterDurham, NCUSA2 aut.4 aut.6 aut.19 aut.Arnold S. BayerHarbor-UCLA Medical Center, The UCLA School of MedicineLos Angeles, CAUSA20 aut.09-02711602009PASCAL 09-0271160 INISTPascal:09-0271160001D300163-4453J. infect.The Journal of infectionAnalgesicAntipyreticAntirheumatic agentComplicationEndocarditisHeart valveHumanNon steroidal antiinflammatory agentSalicylic acidStaphylococcal infectionStaphylococcus aureusStaphylococcieEndocarditeAcide salicyliqueValvule cardiaqueComplicationStaphylococcus aureusHommeAntipyrétiqueAnalgésiqueAntiinflammatoire non stéroïdeAntirhumatismal
Objectives: To assess the influence of acetyl-salicylic acid (ASA) on clinical outcomes in Staphylococcus aureus infective endocarditis (SA-IE). Methods: The International Collaboration on Endocarditis - Prospective Cohort Study database was used in this observational study. Multivariable analysis of the SA-IE cohort compared outcomes in patients with and without ASA use, adjusting for other predictive variables, including: age, diabetes, hemodialysis, cancer, pacemaker, intracardiac defibrillator and methicillin resistance. Results: Data were analysed from 670 patients, 132 of whom were taking ASA at the time of SA-IE diagnosis. On multivariable analysis, ASA usage was associated with a significantly decreased overall rate of acute valve replacement surgery (OR 0.58 [95% CI 0.35-0.97]; p < 0.04), particularly where valvular regurgitation, congestive heart failure or periannular abscess was the indication for such surgery (OR 0.46 [0.25-0.86]; p < 0.02). There was no reduction in the overall rates of clinically apparent embolism with prior ASA usage, and no increase in hemorrhagic strokes in ASA-treated patients. Conclusions: In this multinational prospective observational cohort, recent ASA usage was associated with a reduced occurrence of acute valve replacement surgery in SA-IE patients. Future investigations should focus on ASA's prophylactic and therapeutic use in high-risk and newly diagnosed patients with SA bacteremia and SA-IE, respectively.
0163-4453JINFD2J. infect.585Reduced valve replacement surgery and complication rate in Staphylococcus aureus endocarditis patients receiving acetyl-salicylic acidEISEN (Damon P.)COREY (G. Ralph)MCBRYDE (Emma S.)FOWLER (Vance G.)MIRO (Jose M.)CABELL (Chris H.)STREET (Alan C.)GOULART PAIVA (Marcelo)IONAC (Adina)TAN (Ru-San)TRIBOUILLOY (Christophe)PACHIRAT (Orathai)BRAUN JONES (Sandra)CHIPIGINA (Natalia)NABER (Christoph)PAN (Angelo)RAVASIO (Veronica)GATTRINGER (Rainer)CHU (Vivian H.)BAYER (Arnold S.)Victorian Infectious Diseases Service, Royal Melbourne Hospital, Grattan StParkville, Victoria 3050AUS1 aut.3 aut.7 aut.Duke University Medical CenterDurham, NCUSA2 aut.4 aut.6 aut.19 aut.Hospital Clinic - Institut d'Investigacions Biomèdiques August Pi i Sunyer - University of BarcelonaBarcelonaESP5 aut.Hospital 9 de JulhoSão PauloBRA8 aut.Victor Babes University of Medicine and PharmacyTimisoarROU9 aut.National HospitalSingaporeSGP10 aut.South Hospital AmiensAmiensFRA11 aut.Khon Kaen UniversityKhon KaenTHA12 aut.Hosp. Clínico Pont. Universidad Católica de ChileSantiagoCHL13 aut.Russian Medical State UniversityMoscowRUS14 aut.University EssenEssenDEU15 aut.Spedali Civili - Università di BresciaBresciaITA16 aut.Ospedali Riuniti di BergamoBergamoITA17 aut.Division of Infectious Diseases and Tropical Medicine, Medical University of ViennaViennaAUT18 aut.Harbor-UCLA Medical Center, The UCLA School of MedicineLos Angeles, CAUSA20 aut.332-3382009ENGINIST182503540001882810400300000© 2009 INIST-CNRS. All rights reserved.24 ref.09-0271160PAThe Journal of infectionGBRObjectives: To assess the influence of acetyl-salicylic acid (ASA) on clinical outcomes in Staphylococcus aureus infective endocarditis (SA-IE). Methods: The International Collaboration on Endocarditis - Prospective Cohort Study database was used in this observational study. Multivariable analysis of the SA-IE cohort compared outcomes in patients with and without ASA use, adjusting for other predictive variables, including: age, diabetes, hemodialysis, cancer, pacemaker, intracardiac defibrillator and methicillin resistance. Results: Data were analysed from 670 patients, 132 of whom were taking ASA at the time of SA-IE diagnosis. On multivariable analysis, ASA usage was associated with a significantly decreased overall rate of acute valve replacement surgery (OR 0.58 [95% CI 0.35-0.97]; p < 0.04), particularly where valvular regurgitation, congestive heart failure or periannular abscess was the indication for such surgery (OR 0.46 [0.25-0.86]; p < 0.02). There was no reduction in the overall rates of clinically apparent embolism with prior ASA usage, and no increase in hemorrhagic strokes in ASA-treated patients. Conclusions: In this multinational prospective observational cohort, recent ASA usage was associated with a reduced occurrence of acute valve replacement surgery in SA-IE patients. Future investigations should focus on ASA's prophylactic and therapeutic use in high-risk and newly diagnosed patients with SA bacteremia and SA-IE, respectively.002B01002B05B02N002B12A04Staphylococcie01Staphylococcal infection01Estafilococia01Endocardite02Endocarditis02Endocarditis02Acide salicyliqueNKFR04Salicylic acidNKFR04Valvule cardiaque07Heart valve07Válvula cardíaca07Complication08Complication08Complicación08Staphylococcus aureusNS10Staphylococcus aureusNS10Staphylococcus aureusNS10Homme11Human11Hombre11Antipyrétique30Antipyretic30Antipirético30Analgésique31Analgesic31Analgésico31Antiinflammatoire non stéroïde32Non steroidal antiinflammatory agent32Antiinflamatorio no esteroide32Antirhumatismal33Antirheumatic agent33Antireumático33BactérioseBacteriosisBacteriosisInfectionInfectionInfecciónMicrococcaceaeNSMicrococcaceaeNSMicrococcaceaeNSMicrococcalesNSMicrococcalesNSMicrococcalesNSBactérieBacteriaBacteriaPathologie de l'appareil circulatoire37Cardiovascular disease37Aparato circulatorio patología37Cardiopathie38Heart disease38Cardiopatía38Pathologie de l'endocarde39Endocardial disease39Endocardio patología39Inhibiteur enzyme40Enzyme inhibitor40Inhibidor enzima40Prostaglandin-endoperoxide synthaseFE41Prostaglandin-endoperoxide synthaseFE41Prostaglandin-endoperoxide synthaseFE41OxidoreductasesFEOxidoreductasesFEOxidoreductasesFEEnzymeFEEnzymeFEEnzimaFESalicylés42Salicylates42Salicilatos42201OTOOTOPASCAL 09-0271160 INISTReduced valve replacement surgery and complication rate in Staphylococcus aureus endocarditis patients receiving acetyl-salicylic acidEISEN (Damon P.); COREY (G. Ralph); MCBRYDE (Emma S.); FOWLER (Vance G.); MIRO (Jose M.); CABELL (Chris H.); STREET (Alan C.); GOULART PAIVA (Marcelo); IONAC (Adina); TAN (Ru-San); TRIBOUILLOY (Christophe); PACHIRAT (Orathai); BRAUN JONES (Sandra); CHIPIGINA (Natalia); NABER (Christoph); PAN (Angelo); RAVASIO (Veronica); GATTRINGER (Rainer); CHU (Vivian H.); BAYER (Arnold S.)Victorian Infectious Diseases Service, Royal Melbourne Hospital, Grattan St/Parkville, Victoria 3050/Australie (1 aut., 3 aut., 7 aut.); Duke University Medical Center/Durham, NC/Etats-Unis (2 aut., 4 aut., 6 aut., 19 aut.); Hospital Clinic - Institut d'Investigacions Biomèdiques August Pi i Sunyer - University of Barcelona/Barcelona/Espagne (5 aut.); Hospital 9 de Julho/São Paulo/Brésil (8 aut.); Victor Babes University of Medicine and Pharmacy/Timisoar/Roumanie (9 aut.); National Hospital/Singapore/Singapour (10 aut.); South Hospital Amiens/Amiens/France (11 aut.); Khon Kaen University/Khon Kaen/Thaïlande (12 aut.); Hosp. Clínico Pont. Universidad Católica de Chile/Santiago/Chili (13 aut.); Russian Medical State University/Moscow/Russie (14 aut.); University Essen/Essen/Allemagne (15 aut.); Spedali Civili - Università di Brescia/Brescia/Italie (16 aut.); Ospedali Riuniti di Bergamo/Bergamo/Italie (17 aut.); Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna/Vienna/Autriche (18 aut.); Harbor-UCLA Medical Center, The UCLA School of Medicine/Los Angeles, CA/Etats-Unis (20 aut.)
Publication en série; Niveau analytique
The Journal of infection; ISSN 0163-4453; Coden JINFD2; Royaume-Uni; Da. 2009; Vol. 58; No. 5; Pp. 332-338; Bibl. 24 ref.AnglaisObjectives: To assess the influence of acetyl-salicylic acid (ASA) on clinical outcomes in Staphylococcus aureus infective endocarditis (SA-IE). Methods: The International Collaboration on Endocarditis - Prospective Cohort Study database was used in this observational study. Multivariable analysis of the SA-IE cohort compared outcomes in patients with and without ASA use, adjusting for other predictive variables, including: age, diabetes, hemodialysis, cancer, pacemaker, intracardiac defibrillator and methicillin resistance. Results: Data were analysed from 670 patients, 132 of whom were taking ASA at the time of SA-IE diagnosis. On multivariable analysis, ASA usage was associated with a significantly decreased overall rate of acute valve replacement surgery (OR 0.58 [95% CI 0.35-0.97]; p < 0.04), particularly where valvular regurgitation, congestive heart failure or periannular abscess was the indication for such surgery (OR 0.46 [0.25-0.86]; p < 0.02). There was no reduction in the overall rates of clinically apparent embolism with prior ASA usage, and no increase in hemorrhagic strokes in ASA-treated patients. Conclusions: In this multinational prospective observational cohort, recent ASA usage was associated with a reduced occurrence of acute valve replacement surgery in SA-IE patients. Future investigations should focus on ASA's prophylactic and therapeutic use in high-risk and newly diagnosed patients with SA bacteremia and SA-IE, respectively.002B01; 002B05B02N; 002B12A04Staphylococcie; Endocardite; Acide salicylique; Valvule cardiaque; Complication; Staphylococcus aureus; Homme; Antipyrétique; Analgésique; Antiinflammatoire non stéroïde; AntirhumatismalBactériose; Infection; Micrococcaceae; Micrococcales; Bactérie; Pathologie de l'appareil circulatoire; Cardiopathie; Pathologie de l'endocarde; Inhibiteur enzyme; Prostaglandin-endoperoxide synthase; Oxidoreductases; Enzyme; SalicylésStaphylococcal infection; Endocarditis; Salicylic acid; Heart valve; Complication; Staphylococcus aureus; Human; Antipyretic; Analgesic; Non steroidal antiinflammatory agent; Antirheumatic agentBacteriosis; Infection; Micrococcaceae; Micrococcales; Bacteria; Cardiovascular disease; Heart disease; Endocardial disease; Enzyme inhibitor; Prostaglandin-endoperoxide synthase; Oxidoreductases; Enzyme; SalicylatesEstafilococia; Endocarditis; Válvula cardíaca; Complicación; Staphylococcus aureus; Hombre; Antipirético; Analgésico; Antiinflamatorio no esteroide; AntireumáticoINIST-18250.35400018828104003009-0271160
000C50 Accurate velocity reconstruction for Discontinuous Galerkin approximations of two-phase porous media flowsAlexandre ErnUniversité Paris-Est, CERMICS, École des ponts, 6 & 8, avenue B. Pascal77455Marne-la-ValléeFRA1 aut.2 aut.Igor MozolevskiUniversité Paris-Est, CERMICS, École des ponts, 6 & 8, avenue B. Pascal77455Marne-la-ValléeFRA1 aut.2 aut.Departamento de Matemática, Universidade Federal de Santa Catarina88040-900, Florianópolis-SCBRA2 aut.L. SchuhIME, Univensidade de São Paulo, Rua do Matão, 1010, Cidade Universitária05508-090, São Paulo, SPBRA3 aut.09-02715172009PASCAL 09-0271517 INISTPascal:09-0271517001D291631-073XC. r., Math.Comptes rendus. MathématiqueApproximationDiscontinuousEuler equationEuler schemeGalerkin methodImplicit equationMathematicsPorous mediumRate equationReconstructionSaturationTwo phase flowTwo phase mediumVelocityVitesseReconstructionDiscontinuMéthode GalerkinApproximationEcoulement diphasiqueMilieu diphasiqueMilieu poreuxSchéma EulerEquation EulerEquation impliciteSaturationEquation vitesseMathématiquesSchéma implicite34A0941A40
Nous considérons une méthode de Galerkine discontinue pour approcher les écoulements diphasiques non-miscibles en milieu poreux dans la formulation en pression globale. Une approche séquentielle est utilisée avec un schéma d'Euler implicite pour l'équation de la saturation, le même ordre polynomial pour la pression et la saturation, et en l'absence de limiteurs. Nous montrons comment reconstruire à partir de l'équation en pression une vitesse totale précise pour l'équation de la saturation. Des exemples numériques illustrent les avantages de l'approche proposée.
1631-073XC. r., Math.3479-10Accurate velocity reconstruction for Discontinuous Galerkin approximations of two-phase porous media flowsERN (Alexandre)MOZOLEVSKI (Igor)SCHUH (L.)Université Paris-Est, CERMICS, École des ponts, 6 & 8, avenue B. Pascal77455Marne-la-ValléeFRA1 aut.2 aut.Departamento de Matemática, Universidade Federal de Santa Catarina88040-900, Florianópolis-SCBRA2 aut.IME, Univensidade de São Paulo, Rua do Matão, 1010, Cidade Universitária05508-090, São Paulo, SPBRA3 aut.551-5542009ENGfreINIST116A3540001883044901800000© 2009 INIST-CNRS. All rights reserved.7 ref.09-0271517PAComptes rendus. MathématiqueFRANous considérons une méthode de Galerkine discontinue pour approcher les écoulements diphasiques non-miscibles en milieu poreux dans la formulation en pression globale. Une approche séquentielle est utilisée avec un schéma d'Euler implicite pour l'équation de la saturation, le même ordre polynomial pour la pression et la saturation, et en l'absence de limiteurs. Nous montrons comment reconstruire à partir de l'équation en pression une vitesse totale précise pour l'équation de la saturation. Des exemples numériques illustrent les avantages de l'approche proposée.001A02K01001A02E08001A02E07001A02E11Vitesse17Velocity17Velocidad17Reconstruction18Reconstruction18Reconstrucción18Discontinu19Discontinuous19Discontinuo19Méthode Galerkin20Galerkin method20Método Galerkin20Approximation21Approximation21Aproximación21Ecoulement diphasique22Two phase flow22Flujo difásico22Milieu diphasique23Two phase medium23Medio difásico23Milieu poreux24Porous medium24Medio poroso24Schéma Euler25Euler scheme25Esquema Euler25Equation Euler26Euler equation26Ecuación Euler26Equation implicite27Implicit equation27Ecuación implicita27Saturation28Saturation28Saturación28Equation vitesse29Rate equation29Ecuación velocidad29Mathématiques30Mathematics30Matemáticas30Schéma impliciteINC7034A09INC7141A40INC72201OTOOTOPASCAL 09-0271517 INISTAccurate velocity reconstruction for Discontinuous Galerkin approximations of two-phase porous media flowsERN (Alexandre); MOZOLEVSKI (Igor); SCHUH (L.)Université Paris-Est, CERMICS, École des ponts, 6 & 8, avenue B. Pascal/77455Marne-la-Vallée/France (1 aut., 2 aut.); Departamento de Matemática, Universidade Federal de Santa Catarina/88040-900, Florianópolis-SC/Brésil (2 aut.); IME, Univensidade de São Paulo, Rua do Matão, 1010, Cidade Universitária/05508-090, São Paulo, SP/Brésil (3 aut.)
Publication en série; Niveau analytique
Comptes rendus. Mathématique; ISSN 1631-073X; France; Da. 2009; Vol. 347; No. 9-10; Pp. 551-554; Abs. français; Bibl. 7 ref.AnglaisNous considérons une méthode de Galerkine discontinue pour approcher les écoulements diphasiques non-miscibles en milieu poreux dans la formulation en pression globale. Une approche séquentielle est utilisée avec un schéma d'Euler implicite pour l'équation de la saturation, le même ordre polynomial pour la pression et la saturation, et en l'absence de limiteurs. Nous montrons comment reconstruire à partir de l'équation en pression une vitesse totale précise pour l'équation de la saturation. Des exemples numériques illustrent les avantages de l'approche proposée.001A02K01; 001A02E08; 001A02E07; 001A02E11Vitesse; Reconstruction; Discontinu; Méthode Galerkin; Approximation; Ecoulement diphasique; Milieu diphasique; Milieu poreux; Schéma Euler; Equation Euler; Equation implicite; Saturation; Equation vitesse; Mathématiques; Schéma implicite; 34A09; 41A40Velocity; Reconstruction; Discontinuous; Galerkin method; Approximation; Two phase flow; Two phase medium; Porous medium; Euler scheme; Euler equation; Implicit equation; Saturation; Rate equation; MathematicsVelocidad; Reconstrucción; Discontinuo; Método Galerkin; Aproximación; Flujo difásico; Medio difásico; Medio poroso; Esquema Euler; Ecuación Euler; Ecuación implicita; Saturación; Ecuación velocidad; MatemáticasINIST-116A.35400018830449018009-0271517
000C51 An analysis of the composite stellar population in M32P. CoelhoInstitut d'Astrophysique, CNRS, Université Pierre et Marie Curie, 98 bis Bd Arago75014 ParisFRA1 aut.C. Mendes De OliveiraUniversidade de São Paulo, IAG, Rua do Matão 1226São Paulo 05508-900BRA2 aut.R. Cid FernandesDepartamento de Física, CFM, Universidade Federal de Santa Catarina, PO Box 47688040-900 Florianópolis, SCBRA3 aut.09-02720332009PASCAL 09-0272033 INISTPascal:09-0272033001D280035-8711Mon. Not. R. Astron. Soc.Monthly Notices of the Royal Astronomical SocietyAbundanceAgeColor-magnitude diagramsEffective radiusGalaxiesGalaxy evolutionHorizontal-branch starsMetallicitySignal-to-noise ratioSpectroscopyStellar contentStellar evolutionStellar populationPopulation stellaireRapport signal bruitGalaxiesSpectrométrieDiagramme magnitude couleurAgeRayon effectifEtoile branche horizontaleMétallicitéEvolution stellaireAbondanceEvolution galaxiesContenu stellaire
We obtained long-slit spectra of high signal-to-noise ratio of the galaxy M32 with the Gemini Multi-Object Spectrograph at the Gemini-North telescope. We analysed the integrated spectra by means of full spectral fitting in order to extract the mixture of stellar populations that best represents its composite nature. Three different galactic radii were analysed, from the nuclear region out to 2 arcmin from the centre. This allows us to compare, for the first time, the results of integrated light spectroscopy with those of resolved colour-magnitude diagrams from the literature. As a main result we propose that an ancient and an intermediate-age population co-exist in M32, and that the balance between these two populations change between the nucleus and outside one effective radius (1reff) in the sense that the contribution from the intermediate population is larger at the nuclear region. We retrieve a smaller signal of a young population at all radii whose origin is unclear and may be a contamination from horizontal branch stars, such as the ones identified by Brown et al. in the nuclear region. We compare our metallicity distribution function for a region 1 to 2 arcmin from the centre to the one obtained with photometric data by Grillmair et al. Both distributions are broad, but our spectroscopically derived distribution has a significant component with [Z/Z◦.] ≤ - 1, which is not found by Grillmair et al.
0035-8711MNRAA4Mon. Not. R. Astron. Soc.3962An analysis of the composite stellar population in M32COELHO (P.)MENDES DE OLIVEIRA (C.)CID FERNANDES (R.)Institut d'Astrophysique, CNRS, Université Pierre et Marie Curie, 98 bis Bd Arago75014 ParisFRA1 aut.Universidade de São Paulo, IAG, Rua do Matão 1226São Paulo 05508-900BRA2 aut.Departamento de Física, CFM, Universidade Federal de Santa Catarina, PO Box 47688040-900 Florianópolis, SCBRA3 aut.624-6342009ENGINIST20673540001885608900200000© 2009 INIST-CNRS. All rights reserved.1/4 p.09-0272033PAMonthly Notices of the Royal Astronomical SocietyGBRWe obtained long-slit spectra of high signal-to-noise ratio of the galaxy M32 with the Gemini Multi-Object Spectrograph at the Gemini-North telescope. We analysed the integrated spectra by means of full spectral fitting in order to extract the mixture of stellar populations that best represents its composite nature. Three different galactic radii were analysed, from the nuclear region out to 2 arcmin from the centre. This allows us to compare, for the first time, the results of integrated light spectroscopy with those of resolved colour-magnitude diagrams from the literature. As a main result we propose that an ancient and an intermediate-age population co-exist in M32, and that the balance between these two populations change between the nucleus and outside one effective radius (1reff) in the sense that the contribution from the intermediate population is larger at the nuclear region. We retrieve a smaller signal of a young population at all radii whose origin is unclear and may be a contamination from horizontal branch stars, such as the ones identified by Brown et al. in the nuclear region. We compare our metallicity distribution function for a region 1 to 2 arcmin from the centre to the one obtained with photometric data by Grillmair et al. Both distributions are broad, but our spectroscopically derived distribution has a significant component with [Z/Z◦.] ≤ - 1, which is not found by Grillmair et al.001E03Population stellaire26Stellar population26Población estelar26Rapport signal bruit27Signal-to-noise ratio27Galaxies28Galaxies28Spectrométrie29Spectroscopy29Diagramme magnitude couleur30Color-magnitude diagrams30Age31Age31Edad31Rayon effectif32Effective radius32Radio efectivo32Etoile branche horizontale33Horizontal-branch stars33Métallicité34Metallicity34Metalicidad34Evolution stellaire35Stellar evolution35Abondance36Abundance36Evolution galaxies37Galaxy evolution37Evolución galaxias37Contenu stellaire38Stellar content38Contenido estelar38201OTOOTOPASCAL 09-0272033 INISTAn analysis of the composite stellar population in M32COELHO (P.); MENDES DE OLIVEIRA (C.); CID FERNANDES (R.)Institut d'Astrophysique, CNRS, Université Pierre et Marie Curie, 98 bis Bd Arago/75014 Paris/France (1 aut.); Universidade de São Paulo, IAG, Rua do Matão 1226/São Paulo 05508-900/Brésil (2 aut.); Departamento de Física, CFM, Universidade Federal de Santa Catarina, PO Box 476/88040-900 Florianópolis, SC/Brésil (3 aut.)
Publication en série; Niveau analytique
Monthly Notices of the Royal Astronomical Society; ISSN 0035-8711; Coden MNRAA4; Royaume-Uni; Da. 2009; Vol. 396; No. 2; Pp. 624-634; Bibl. 1/4 p.AnglaisWe obtained long-slit spectra of high signal-to-noise ratio of the galaxy M32 with the Gemini Multi-Object Spectrograph at the Gemini-North telescope. We analysed the integrated spectra by means of full spectral fitting in order to extract the mixture of stellar populations that best represents its composite nature. Three different galactic radii were analysed, from the nuclear region out to 2 arcmin from the centre. This allows us to compare, for the first time, the results of integrated light spectroscopy with those of resolved colour-magnitude diagrams from the literature. As a main result we propose that an ancient and an intermediate-age population co-exist in M32, and that the balance between these two populations change between the nucleus and outside one effective radius (1reff) in the sense that the contribution from the intermediate population is larger at the nuclear region. We retrieve a smaller signal of a young population at all radii whose origin is unclear and may be a contamination from horizontal branch stars, such as the ones identified by Brown et al. in the nuclear region. We compare our metallicity distribution function for a region 1 to 2 arcmin from the centre to the one obtained with photometric data by Grillmair et al. Both distributions are broad, but our spectroscopically derived distribution has a significant component with [Z/Z◦.] ≤ - 1, which is not found by Grillmair et al.001E03Population stellaire; Rapport signal bruit; Galaxies; Spectrométrie; Diagramme magnitude couleur; Age; Rayon effectif; Etoile branche horizontale; Métallicité; Evolution stellaire; Abondance; Evolution galaxies; Contenu stellaireStellar population; Signal-to-noise ratio; Galaxies; Spectroscopy; Color-magnitude diagrams; Age; Effective radius; Horizontal-branch stars; Metallicity; Stellar evolution; Abundance; Galaxy evolution; Stellar contentPoblación estelar; Edad; Radio efectivo; Metalicidad; Evolución galaxias; Contenido estelarINIST-2067.35400018856089002009-0272033
000C52 THE LOWER CENTRAL AND DERIVED SERIES OF THE BRAID GROUPS OF THE SPHEREDaciberg Lima GoncalvesDEPARTAMENTO DE MATEMÁTICA, INSTITUTO DE MATEMÁTICA E ESTATÍSTICA, UNIVERSIDADE DE SA========Otilde; PAULO, CAIXA POSTAL 66281, AG. CIDADE DE S========Atilde;O PAULOCEP: 05314-970, S========Atilde;O PAULO, SPBRA1 aut.John GuaschiLABORATOIRE DE MATHÉMATIQUES EMILE PICARD, UMR CNRS 5580, UFR-MIG, UNIVERSITE TOULOUSE III31062 TOULOUSEFRA2 aut.09-02726242009PASCAL 09-0272624 INISTPascal:09-0272624001D270002-9947Trans. Am. Math. Soc.Transactions of the American Mathematical SocietyBraid groupFinite groupFree groupOrdered groupQuaternionQuotientRankSphereStringSubgroupTorsionGroupe tresseSphèreTorsionCordeSous groupeQuaternionGroupe libreRangGroupe finiQuotient20F36Produit direct20B05Groupe ordonné
In this paper, we determine the lower central and derived series for the braid groups of the sphere. We are motivated in part by the study of Fadell-Neuwirth short exact sequences, but the problem is important in its own right. The braid groups of the 2-sphere S2 were studied by Fadell, Van Buskirk and Gillette during the 1960s, and are of particular interest due to the fact that they have torsion elements (which were characterised by Murasugi). We first prove that for all n ∈ N, the lower central series of the n-string braid group Bn(S2) is constant from the commutator subgroup onwards. We obtain a presentation of Γ2(Bn(S2)), from which we observe that Γ2(B4(S2)) is a semi-direct product of the quaternion group Q8 of order 8 by a free group F2 of rank 2. As for the derived series of Bn(S2), we show that for all n ≥ 5, it is constant from the derived subgroup onwards. The group Bn(S2) being finite and soluble for n < 3, the critical case is n = 4 for which the derived subgroup is the above semi-direct product Q8 × F2. By proving a general result concerning the structure of the derived subgroup of a semi-direct product, we are able to determine completely the derived series of B4(S2) which from (B4(S2))(4) onwards coincides with that of the free group of rank 2, as well as its successive derived series quotients.
0002-9947TAMTAMTrans. Am. Math. Soc.3617THE LOWER CENTRAL AND DERIVED SERIES OF THE BRAID GROUPS OF THE SPHERELIMA GONCALVES (Daciberg)GUASCHI (John)DEPARTAMENTO DE MATEMÁTICA, INSTITUTO DE MATEMÁTICA E ESTATÍSTICA, UNIVERSIDADE DE SA========Otilde; PAULO, CAIXA POSTAL 66281, AG. CIDADE DE S========Atilde;O PAULOCEP: 05314-970, S========Atilde;O PAULO, SPBRA1 aut.LABORATOIRE DE MATHÉMATIQUES EMILE PICARD, UMR CNRS 5580, UFR-MIG, UNIVERSITE TOULOUSE III31062 TOULOUSEFRA2 aut.3375-33992009ENGINIST60453540001883065400100000© 2009 INIST-CNRS. All rights reserved.46 ref.09-0272624PATransactions of the American Mathematical SocietyUSAIn this paper, we determine the lower central and derived series for the braid groups of the sphere. We are motivated in part by the study of Fadell-Neuwirth short exact sequences, but the problem is important in its own right. The braid groups of the 2-sphere S2 were studied by Fadell, Van Buskirk and Gillette during the 1960s, and are of particular interest due to the fact that they have torsion elements (which were characterised by Murasugi). We first prove that for all n ∈ N, the lower central series of the n-string braid group Bn(S2) is constant from the commutator subgroup onwards. We obtain a presentation of Γ2(Bn(S2)), from which we observe that Γ2(B4(S2)) is a semi-direct product of the quaternion group Q8 of order 8 by a free group F2 of rank 2. As for the derived series of Bn(S2), we show that for all n ≥ 5, it is constant from the derived subgroup onwards. The group Bn(S2) being finite and soluble for n < 3, the critical case is n = 4 for which the derived subgroup is the above semi-direct product Q8 × F2. By proving a general result concerning the structure of the derived subgroup of a semi-direct product, we are able to determine completely the derived series of B4(S2) which from (B4(S2))(4) onwards coincides with that of the free group of rank 2, as well as its successive derived series quotients.001A02D01Groupe tresse17Braid group17Grupo trenza17Sphère18Sphere18Esfera18Torsion19Torsion19Torsión19Corde20String20Cuerda20Sous groupe21Subgroup21Subgrupo21Quaternion22Quaternion22Cuaternión22Groupe libre23Free group23Grupo libre23Rang24Rank24Rango24Groupe fini25Finite group25Grupo finito25Quotient26Quotient26Cociente2620F36INC70Produit directINC7120B05INC72Groupe ordonnéCD96Ordered groupCD96201OTOOTOPASCAL 09-0272624 INISTTHE LOWER CENTRAL AND DERIVED SERIES OF THE BRAID GROUPS OF THE SPHERELIMA GONCALVES (Daciberg); GUASCHI (John)DEPARTAMENTO DE MATEMÁTICA, INSTITUTO DE MATEMÁTICA E ESTATÍSTICA, UNIVERSIDADE DE SA========Otilde; PAULO, CAIXA POSTAL 66281, AG. CIDADE DE S========Atilde;O PAULO/CEP: 05314-970, S========Atilde;O PAULO, SP/Brésil (1 aut.); LABORATOIRE DE MATHÉMATIQUES EMILE PICARD, UMR CNRS 5580, UFR-MIG, UNIVERSITE TOULOUSE III/31062 TOULOUSE/France (2 aut.)
Publication en série; Niveau analytique
Transactions of the American Mathematical Society; ISSN 0002-9947; Coden TAMTAM; Etats-Unis; Da. 2009; Vol. 361; No. 7; Pp. 3375-3399; Bibl. 46 ref.AnglaisIn this paper, we determine the lower central and derived series for the braid groups of the sphere. We are motivated in part by the study of Fadell-Neuwirth short exact sequences, but the problem is important in its own right. The braid groups of the 2-sphere S2 were studied by Fadell, Van Buskirk and Gillette during the 1960s, and are of particular interest due to the fact that they have torsion elements (which were characterised by Murasugi). We first prove that for all n ∈ N, the lower central series of the n-string braid group Bn(S2) is constant from the commutator subgroup onwards. We obtain a presentation of Γ2(Bn(S2)), from which we observe that Γ2(B4(S2)) is a semi-direct product of the quaternion group Q8 of order 8 by a free group F2 of rank 2. As for the derived series of Bn(S2), we show that for all n ≥ 5, it is constant from the derived subgroup onwards. The group Bn(S2) being finite and soluble for n < 3, the critical case is n = 4 for which the derived subgroup is the above semi-direct product Q8 × F2. By proving a general result concerning the structure of the derived subgroup of a semi-direct product, we are able to determine completely the derived series of B4(S2) which from (B4(S2))(4) onwards coincides with that of the free group of rank 2, as well as its successive derived series quotients.001A02D01Groupe tresse; Sphère; Torsion; Corde; Sous groupe; Quaternion; Groupe libre; Rang; Groupe fini; Quotient; 20F36; Produit direct; 20B05; Groupe ordonnéBraid group; Sphere; Torsion; String; Subgroup; Quaternion; Free group; Rank; Finite group; Quotient; Ordered groupGrupo trenza; Esfera; Torsión; Cuerda; Subgrupo; Cuaternión; Grupo libre; Rango; Grupo finito; CocienteINIST-6045.35400018830654001009-0272624
000C53 Age-dependent plasticity of sex pheromone response in the moth, Agrotis ipsilon: Combined effects of octopamine and juvenile hormoneDavid JarriaultINRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication78000 VersaillesFRA1 aut.2 aut.8 aut.9 aut.Romina B. BarrozoINRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication78000 VersaillesFRA1 aut.2 aut.8 aut.9 aut.Carlos J. De Carvalho PintoINRA, UMR 1065 Santé Végétale33883 Villenave d'OrnonFRA3 aut.5 aut.6 aut.Federal University of Santa Catarina, Department of Microbiology and Parasitology, CCB88040-900 Florianopolis, SCBRA3 aut.Birgit GreinerUniversity of Wuerzburg, Bio-Imaging Centre, Versbacher Str. 597078 WuerzburgDEU4 aut.Marie-Cécile DufourINRA, UMR 1065 Santé Végétale33883 Villenave d'OrnonFRA3 aut.5 aut.6 aut.Ingwild Masante-RocaINRA, UMR 1065 Santé Végétale33883 Villenave d'OrnonFRA3 aut.5 aut.6 aut.Jan B. GramsbergenUniversity of Southern Denmark, Institute of Medical Biology, Anatomy and Neurobiology, Winsløwparken 215000 OdenseDNK7 aut.Sylvia AntonINRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication78000 VersaillesFRA1 aut.2 aut.8 aut.9 aut.Christophe GadenneINRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication78000 VersaillesFRA1 aut.2 aut.8 aut.9 aut.09-02727442009PASCAL 09-0272744 INISTPascal:09-0272744001D26FRANCIS 09-0272744 INIST0018-506XHorm. behav. : (Print)Hormones and behavior : (Print)AgeAgrotis ipsilonCardiotonic agentHormoneOctopaminePheromonePlasticitySexAgePlasticitéSexePhéromoneOctopamineHormoneAgrotis ipsilonCardiotoniqueLobe antennaire
Male moths use sex pheromones to find their mating partners. In the moth, Agrotis ipsilon, the behavioral response and the neuron sensitivity within the primary olfactory centre, the antennal lobe (AL), to sex pheromone increase with age and juvenile hormone (JH) biosynthesis. By manipulating the JH level, we previously showed that JH controls this age-dependent neuronal plasticity, and that its effects are slow (within 2 days). We hypothesized that the hormonal effect might be indirect, and one neuromodulator candidate, which might serve as a mediator, is octopamine (OA). Here, we studied the effects of OA and an OA receptor antagonist, mianserin, on behavioral and AL neuron responses of mature and immature males during stimulation with sex pheromone. Our results indicate that, although OA injections enhanced the behavioral pheromone response in mature males, OA had no significant effect on behavior in immature males. However, mianserin injections decreased the behavioral response in mature males. AL neuron sensitivity increased after OA treatment in immature males, and decreased after mianserin treatment in mature males. Determination of OA levels in ALs of immature and mature males did not reveal any difference. To study the possible interactive effects of JH and OA, the behavioral pheromone response was analyzed in JH-deprived mature males injected with OA, and in immature males injected with fenoxycarb, a JH agonist, and mianserin. Results show that both JH and OA are necessary to elicit a behavioral response of A. ipsilon males to sex pheromone.
0018-506XHOBEAOHorm. behav. : (Print)561Age-dependent plasticity of sex pheromone response in the moth, Agrotis ipsilon: Combined effects of octopamine and juvenile hormoneJARRIAULT (David)BARROZO (Romina B.)DE CARVALHO PINTO (Carlos J.)GREINER (Birgit)DUFOUR (Marie-Cécile)MASANTE-ROCA (Ingwild)GRAMSBERGEN (Jan B.)ANTON (Sylvia)GADENNE (Christophe)INRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication78000 VersaillesFRA1 aut.2 aut.8 aut.9 aut.INRA, UMR 1065 Santé Végétale33883 Villenave d'OrnonFRA3 aut.5 aut.6 aut.Federal University of Santa Catarina, Department of Microbiology and Parasitology, CCB88040-900 Florianopolis, SCBRA3 aut.University of Wuerzburg, Bio-Imaging Centre, Versbacher Str. 597078 WuerzburgDEU4 aut.University of Southern Denmark, Institute of Medical Biology, Anatomy and Neurobiology, Winsløwparken 215000 OdenseDNK7 aut.185-1912009ENGINIST143643540001883109002400000© 2009 INIST-CNRS. All rights reserved.1 p.1/409-0272744PAHormones and behavior : (Print)NLDMale moths use sex pheromones to find their mating partners. In the moth, Agrotis ipsilon, the behavioral response and the neuron sensitivity within the primary olfactory centre, the antennal lobe (AL), to sex pheromone increase with age and juvenile hormone (JH) biosynthesis. By manipulating the JH level, we previously showed that JH controls this age-dependent neuronal plasticity, and that its effects are slow (within 2 days). We hypothesized that the hormonal effect might be indirect, and one neuromodulator candidate, which might serve as a mediator, is octopamine (OA). Here, we studied the effects of OA and an OA receptor antagonist, mianserin, on behavioral and AL neuron responses of mature and immature males during stimulation with sex pheromone. Our results indicate that, although OA injections enhanced the behavioral pheromone response in mature males, OA had no significant effect on behavior in immature males. However, mianserin injections decreased the behavioral response in mature males. AL neuron sensitivity increased after OA treatment in immature males, and decreased after mianserin treatment in mature males. Determination of OA levels in ALs of immature and mature males did not reveal any difference. To study the possible interactive effects of JH and OA, the behavioral pheromone response was analyzed in JH-deprived mature males injected with OA, and in immature males injected with fenoxycarb, a JH agonist, and mianserin. Results show that both JH and OA are necessary to elicit a behavioral response of A. ipsilon males to sex pheromone.002A26C03Age01Age01Edad01Plasticité02Plasticity02Plasticidad02Sexe03Sex03Sexo03Phéromone04Pheromone04Feromona04OctopamineNKFR05OctopamineNKFR05OctopaminaNKFR05Hormone06Hormone06Hormona06Agrotis ipsilonNS18Agrotis ipsilonNS18Agrotis ipsilonNS18Cardiotonique31Cardiotonic agent31Cardiotónico31Lobe antennaireINC86NoctuidaeNSNoctuidaeNSNoctuidaeNSLepidopteraNSLepidopteraNSLepidopteraNSInsectaNSInsectaNSInsectaNSArthropodaNSArthropodaNSArthropodaNSInvertebrataNSInvertebrataNSInvertebrataNSNeuromédiateur37Neuromediator37Neuromediador37Agoniste38Agonist38Agonista38Récepteur α-adrénergique39α-Adrenergic receptor39Receptor α-adrenérgico39Stimulant α-adrénergique40α-Adrenergic receptor agonist40Estimulante α-adrenérgico40201OTOOTOPASCAL 09-0272744 INISTAge-dependent plasticity of sex pheromone response in the moth, Agrotis ipsilon: Combined effects of octopamine and juvenile hormoneJARRIAULT (David); BARROZO (Romina B.); DE CARVALHO PINTO (Carlos J.); GREINER (Birgit); DUFOUR (Marie-Cécile); MASANTE-ROCA (Ingwild); GRAMSBERGEN (Jan B.); ANTON (Sylvia); GADENNE (Christophe)INRA, UMR 1272 Physiologie de l'Insecte: Signalisation et Communication/78000 Versailles/France (1 aut., 2 aut., 8 aut., 9 aut.); INRA, UMR 1065 Santé Végétale/33883 Villenave d'Ornon/France (3 aut., 5 aut., 6 aut.); Federal University of Santa Catarina, Department of Microbiology and Parasitology, CCB/88040-900 Florianopolis, SC/Brésil (3 aut.); University of Wuerzburg, Bio-Imaging Centre, Versbacher Str. 5/97078 Wuerzburg/Allemagne (4 aut.); University of Southern Denmark, Institute of Medical Biology, Anatomy and Neurobiology, Winsløwparken 21/5000 Odense/Danemark (7 aut.)
Publication en série; Niveau analytique
Hormones and behavior : (Print); ISSN 0018-506X; Coden HOBEAO; Pays-Bas; Da. 2009; Vol. 56; No. 1; Pp. 185-191; Bibl. 1 p.1/4AnglaisMale moths use sex pheromones to find their mating partners. In the moth, Agrotis ipsilon, the behavioral response and the neuron sensitivity within the primary olfactory centre, the antennal lobe (AL), to sex pheromone increase with age and juvenile hormone (JH) biosynthesis. By manipulating the JH level, we previously showed that JH controls this age-dependent neuronal plasticity, and that its effects are slow (within 2 days). We hypothesized that the hormonal effect might be indirect, and one neuromodulator candidate, which might serve as a mediator, is octopamine (OA). Here, we studied the effects of OA and an OA receptor antagonist, mianserin, on behavioral and AL neuron responses of mature and immature males during stimulation with sex pheromone. Our results indicate that, although OA injections enhanced the behavioral pheromone response in mature males, OA had no significant effect on behavior in immature males. However, mianserin injections decreased the behavioral response in mature males. AL neuron sensitivity increased after OA treatment in immature males, and decreased after mianserin treatment in mature males. Determination of OA levels in ALs of immature and mature males did not reveal any difference. To study the possible interactive effects of JH and OA, the behavioral pheromone response was analyzed in JH-deprived mature males injected with OA, and in immature males injected with fenoxycarb, a JH agonist, and mianserin. Results show that both JH and OA are necessary to elicit a behavioral response of A. ipsilon males to sex pheromone.002A26C03Age; Plasticité; Sexe; Phéromone; Octopamine; Hormone; Agrotis ipsilon; Cardiotonique; Lobe antennaireNoctuidae; Lepidoptera; Insecta; Arthropoda; Invertebrata; Neuromédiateur; Agoniste; Récepteur α-adrénergique; Stimulant α-adrénergiqueAge; Plasticity; Sex; Pheromone; Octopamine; Hormone; Agrotis ipsilon; Cardiotonic agentNoctuidae; Lepidoptera; Insecta; Arthropoda; Invertebrata; Neuromediator; Agonist; α-Adrenergic receptor; α-Adrenergic receptor agonistEdad; Plasticidad; Sexo; Feromona; Octopamina; Hormona; Agrotis ipsilon; CardiotónicoINIST-14364.35400018831090024009-0272744
000C54 HLA-G Expression in the Skin of Patients with Systemic SclerosisIsabela J. WastowskiProgram of Basic and Applied Immunology, Faculty of Medicine of Ribeirão Preto, University of São PauloSão PauloBRAUnit of Rheumatology, Department of Internal Medicine, Faculty of Medical Sciences State University of CampinasCampinasBRADepartment of Pathology, Faculty of Medical Sciences State University of CampinasCampinasBRAImmunogenetic Transplant Laboratory, Department of Clinical Pathology, State University of CampinasCampinasBRAService de Recherche en Hémato-Immunologie / CEA-DSV / I2BM, Hôpital Saint-Louis, IUHParisFRAPercival D. Sampaio-BarrosEliane M. I. AmstaldenGustavo Martelli PalominoJoao Francisco Marques-NetoJanaina C. O. CrispimAna C. BiralDiane M. RassiEdgardo D. CarosellaPhilippe MoreauEduardo A. Donadi09-02731362009PASCAL 09-0273136 INISTPascal:09-0273136001D250315-162XJ. rheumatol.Journal of rheumatologyAutoimmunityHLA-SystemHumanRheumatologySclerodermaSkinSystème HLAPeauHommeSclérodermieAutoimmunitéRhumatologie
Objective. To determine HLA-G expression in skin biopsies from patients with systemic sclerosis (SSc), and its association with epidemiological, clinical, and laboratory variables and survival. Methods. Paraffin-embedded skin biopsies obtained from 21 SSc patients (14 limited SSc, 7 diffuse SSc) and from 28 healthy controls were studied. HLA-G expression was evaluated by immunohistochemistry. Results. HLA-G molecules were detected in 57% of skin biopsies from patients with SSc (9 from limited SSc, 3 from diffuse SSc), whereas no control sample expressed HLA-G (p = 0.000004). In patients, HLA-G molecules were consistently observed within epidermal and some dermal cells. HLA-G expression was associated with a lower frequency of vascular cutaneous ulcers (p = 0.0004), telangiectasias (p = 0.008), and inflammatory polyarthralgia (p = 0.02). After a 15-year followup, SSc patients who exhibited HLA-G survived longer than patients who did not. Conclusion. HLA-G is expressed in skin biopsies from patients with SSc, and this is associated with a better disease prognosis. This suggests a modulatory role of HLA-G in SSc, as observed in other skin disorders.
0315-162XJRHUA9J. rheumatol.366HLA-G Expression in the Skin of Patients with Systemic SclerosisWASTOWSKI (Isabela J.)SAMPAIO-BARROS (Percival D.)AMSTALDEN (Eliane M. I.)MARTELLI PALOMINO (Gustavo)MARQUES-NETO (Joao Francisco)CRISPIM (Janaina C. O.)BIRAL (Ana C.)RASSI (Diane M.)CAROSELLA (Edgardo D.)MOREAU (Philippe)DONADI (Eduardo A.)Program of Basic and Applied Immunology, Faculty of Medicine of Ribeirão Preto, University of São PauloSão PauloBRAUnit of Rheumatology, Department of Internal Medicine, Faculty of Medical Sciences State University of CampinasCampinasBRADepartment of Pathology, Faculty of Medical Sciences State University of CampinasCampinasBRAImmunogenetic Transplant Laboratory, Department of Clinical Pathology, State University of CampinasCampinasBRAService de Recherche en Hémato-Immunologie / CEA-DSV / I2BM, Hôpital Saint-Louis, IUHParisFRA1230-12342009ENGINIST160243540001885671702400000© 2009 INIST-CNRS. All rights reserved.22 ref.09-0273136PAJournal of rheumatologyCANObjective. To determine HLA-G expression in skin biopsies from patients with systemic sclerosis (SSc), and its association with epidemiological, clinical, and laboratory variables and survival. Methods. Paraffin-embedded skin biopsies obtained from 21 SSc patients (14 limited SSc, 7 diffuse SSc) and from 28 healthy controls were studied. HLA-G expression was evaluated by immunohistochemistry. Results. HLA-G molecules were detected in 57% of skin biopsies from patients with SSc (9 from limited SSc, 3 from diffuse SSc), whereas no control sample expressed HLA-G (p = 0.000004). In patients, HLA-G molecules were consistently observed within epidermal and some dermal cells. HLA-G expression was associated with a lower frequency of vascular cutaneous ulcers (p = 0.0004), telangiectasias (p = 0.008), and inflammatory polyarthralgia (p = 0.02). After a 15-year followup, SSc patients who exhibited HLA-G survived longer than patients who did not. Conclusion. HLA-G is expressed in skin biopsies from patients with SSc, and this is associated with a better disease prognosis. This suggests a modulatory role of HLA-G in SSc, as observed in other skin disorders.002B15002B07Système HLA07HLA-System07Sistema HLA07Peau08Skin08Piel08Homme09Human09Hombre09Sclérodermie13Scleroderma13Esclerodermia13Autoimmunité14Autoimmunity14Autoinmunidad14Rhumatologie15Rheumatology15Reumatología15Maladie autoimmune37Autoimmune disease37Enfermedad autoinmune37Maladie de système38Systemic disease38Enfermedad sistémica38Pathologie de la peau39Skin disease39Piel patología39Pathologie du tissu conjonctif40Connective tissue disease40Tejido conjuntivo patología40Immunopathologie41Immunopathology41Inmunopatología41201OTOOTOPASCAL 09-0273136 INISTHLA-G Expression in the Skin of Patients with Systemic SclerosisWASTOWSKI (Isabela J.); SAMPAIO-BARROS (Percival D.); AMSTALDEN (Eliane M. I.); MARTELLI PALOMINO (Gustavo); MARQUES-NETO (Joao Francisco); CRISPIM (Janaina C. O.); BIRAL (Ana C.); RASSI (Diane M.); CAROSELLA (Edgardo D.); MOREAU (Philippe); DONADI (Eduardo A.)Program of Basic and Applied Immunology, Faculty of Medicine of Ribeirão Preto, University of São Paulo/São Paulo/Brésil; Unit of Rheumatology, Department of Internal Medicine, Faculty of Medical Sciences State University of Campinas/Campinas/Brésil; Department of Pathology, Faculty of Medical Sciences State University of Campinas/Campinas/Brésil; Immunogenetic Transplant Laboratory, Department of Clinical Pathology, State University of Campinas/Campinas/Brésil; Service de Recherche en Hémato-Immunologie / CEA-DSV / I2BM, Hôpital Saint-Louis, IUH/Paris/France
Publication en série; Niveau analytique
Journal of rheumatology; ISSN 0315-162X; Coden JRHUA9; Canada; Da. 2009; Vol. 36; No. 6; Pp. 1230-1234; Bibl. 22 ref.AnglaisObjective. To determine HLA-G expression in skin biopsies from patients with systemic sclerosis (SSc), and its association with epidemiological, clinical, and laboratory variables and survival. Methods. Paraffin-embedded skin biopsies obtained from 21 SSc patients (14 limited SSc, 7 diffuse SSc) and from 28 healthy controls were studied. HLA-G expression was evaluated by immunohistochemistry. Results. HLA-G molecules were detected in 57% of skin biopsies from patients with SSc (9 from limited SSc, 3 from diffuse SSc), whereas no control sample expressed HLA-G (p = 0.000004). In patients, HLA-G molecules were consistently observed within epidermal and some dermal cells. HLA-G expression was associated with a lower frequency of vascular cutaneous ulcers (p = 0.0004), telangiectasias (p = 0.008), and inflammatory polyarthralgia (p = 0.02). After a 15-year followup, SSc patients who exhibited HLA-G survived longer than patients who did not. Conclusion. HLA-G is expressed in skin biopsies from patients with SSc, and this is associated with a better disease prognosis. This suggests a modulatory role of HLA-G in SSc, as observed in other skin disorders.002B15; 002B07Système HLA; Peau; Homme; Sclérodermie; Autoimmunité; RhumatologieMaladie autoimmune; Maladie de système; Pathologie de la peau; Pathologie du tissu conjonctif; ImmunopathologieHLA-System; Skin; Human; Scleroderma; Autoimmunity; RheumatologyAutoimmune disease; Systemic disease; Skin disease; Connective tissue disease; ImmunopathologySistema HLA; Piel; Hombre; Esclerodermia; Autoinmunidad; ReumatologíaINIST-16024.35400018856717024009-0273136
000C55 Cu(II) bipyridine and phenantroline complexes: Tailor-made catalysts for the selective oxidation of tetralinB. LouisLaboratoire des Matériaux. Surfaces et Procédés pour la Catalyse (LMSPC), UMR 7515 du CNRS, Université de Strasbourg, 25 rue Becquerel67087 StrasbourgFRA1 aut.C. DetoniInstituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT Bloco A-641Rio de Janeiro 21945-970, RJBRA2 aut.3 aut.5 aut.N. M. F. CarvalhoInstituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT Bloco A-641Rio de Janeiro 21945-970, RJBRA2 aut.3 aut.5 aut.C. D. DuarteLaboratoire de Chimie Supramoléculaire, ISIS/ULP - CNRS UMR 7006, Université de Strasbourg, 8 allée Gaspard Monge67000 StrasbourgFRA4 aut.O. A. C. AntunesInstituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT Bloco A-641Rio de Janeiro 21945-970, RJBRA2 aut.3 aut.5 aut.09-02756922009PASCAL 09-0275692 INISTPascal:09-0275692001D240926-860XAppl. catal., A Gen.Applied catalysis. A, GeneralAcetonitrileCatalystComplexesConversionElectrosprayHydrogen peroxideIonizationMass spectrometryNaphthalene(1,2,3,4-tetrahydro)NitrileOxidantPartial oxidationRoom temperatureSelectivityStructureWaterComplexeCatalyseurOxydation partielleNaphtalène(1,2,3,4-tétrahydro)Peroxyde d'hydrogèneStructureElectrosprayIonisationSpectrométrie masseOxydantNitrileAcétonitrileEauTempérature ambianteConversionSélectivité
Mononuclear Cu(II) complexes have been synthesized, and their structure thoroughly characterized by electrospray ionization mass spectrometry (ESI-MS). These 2,2'-bipyridine and 1,10-phenantroline mononuclear Cu(II) complexes have been tested as catalysts in the partial oxidation of tetralin (1,2,3,4-tetrahydronaphthalene), using hydrogen peroxide as oxidant in acetonitrile/water as solvent. The complexes [Cu(bipy)3]Cl2.6H2O (1), [Cu(bipy)2Cl]Cl.5H2O (2), [Cu(bipy)Cl2] (3), [Cu(phen)3]Cl2. 6H2O (4), [Cu(phen)2Cl]Cl.5H2O (5), [Cu(phen)Cl2](6) were able to oxidize tetralin at room temperature, at high degrees of conversion (62.1% with 2) into α-tetralol and α-tetralon at 91% selectivity (81% in 1-tetralon). Depending on nature and number of ligands (bipyridine or phenantroline) surrounding Cu2+ cation, one was able to tailor both the activity toward tetralin oxidation, and the selectivity toward 1-tetralol and 1-tetralone products, but also to raise the yield in valuable α-tetralone.
0926-860XAppl. catal., A Gen.3602Cu(II) bipyridine and phenantroline complexes: Tailor-made catalysts for the selective oxidation of tetralinLOUIS (B.)DETONI (C.)CARVALHO (N. M. F.)DUARTE (C. D.)ANTUNES (O. A. C.)Laboratoire des Matériaux. Surfaces et Procédés pour la Catalyse (LMSPC), UMR 7515 du CNRS, Université de Strasbourg, 25 rue Becquerel67087 StrasbourgFRA1 aut.Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT Bloco A-641Rio de Janeiro 21945-970, RJBRA2 aut.3 aut.5 aut.Laboratoire de Chimie Supramoléculaire, ISIS/ULP - CNRS UMR 7006, Université de Strasbourg, 8 allée Gaspard Monge67000 StrasbourgFRA4 aut.218-2252009ENGINIST18840A3540001884941501600000© 2009 INIST-CNRS. All rights reserved.52 ref.09-0275692PAApplied catalysis. A, GeneralNLDMononuclear Cu(II) complexes have been synthesized, and their structure thoroughly characterized by electrospray ionization mass spectrometry (ESI-MS). These 2,2'-bipyridine and 1,10-phenantroline mononuclear Cu(II) complexes have been tested as catalysts in the partial oxidation of tetralin (1,2,3,4-tetrahydronaphthalene), using hydrogen peroxide as oxidant in acetonitrile/water as solvent. The complexes [Cu(bipy)3]Cl2.6H2O (1), [Cu(bipy)2Cl]Cl.5H2O (2), [Cu(bipy)Cl2] (3), [Cu(phen)3]Cl2. 6H2O (4), [Cu(phen)2Cl]Cl.5H2O (5), [Cu(phen)Cl2](6) were able to oxidize tetralin at room temperature, at high degrees of conversion (62.1% with 2) into α-tetralol and α-tetralon at 91% selectivity (81% in 1-tetralon). Depending on nature and number of ligands (bipyridine or phenantroline) surrounding Cu2+ cation, one was able to tailor both the activity toward tetralin oxidation, and the selectivity toward 1-tetralol and 1-tetralone products, but also to raise the yield in valuable α-tetralone.001C01A03ComplexeNA01ComplexesNA01ComplejoNA01Catalyseur02Catalyst02Catalizador02Oxydation partielle03Partial oxidation03Oxidación parcial03Naphtalène(1,2,3,4-tétrahydro)NK04Naphthalene(1,2,3,4-tetrahydro)NK04Naftaleno(1,2,3,4-tetrahidro)NK04Peroxyde d'hydrogèneNK05Hydrogen peroxideNK05Peróxido de hydrogenoNK05Structure08Structure08Estructura08Electrospray09Electrospray09Electrospray09Ionisation10Ionization10Ionización10Spectrométrie masse11Mass spectrometry11Espectrometría masa11Oxydant12Oxidant12Oxidante12Nitrile13Nitrile13Nitrilo13AcétonitrileNK14AcetonitrileNK14AcetonitriloNK14Eau15Water15Agua15Température ambiante16Room temperature16Temperatura ambiente16Conversion17Conversion17Conversión17Sélectivité18Selectivity18Selectividad18Composé bicyclique07Bicyclic compound07Compuesto bicíclico07201PASCAL 09-0275692 INISTCu(II) bipyridine and phenantroline complexes: Tailor-made catalysts for the selective oxidation of tetralinLOUIS (B.); DETONI (C.); CARVALHO (N. M. F.); DUARTE (C. D.); ANTUNES (O. A. C.)Laboratoire des Matériaux. Surfaces et Procédés pour la Catalyse (LMSPC), UMR 7515 du CNRS, Université de Strasbourg, 25 rue Becquerel/67087 Strasbourg/France (1 aut.); Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT Bloco A-641/Rio de Janeiro 21945-970, RJ/Brésil (2 aut., 3 aut., 5 aut.); Laboratoire de Chimie Supramoléculaire, ISIS/ULP - CNRS UMR 7006, Université de Strasbourg, 8 allée Gaspard Monge/67000 Strasbourg/France (4 aut.)
Publication en série; Niveau analytique
Applied catalysis. A, General; ISSN 0926-860X; Pays-Bas; Da. 2009; Vol. 360; No. 2; Pp. 218-225; Bibl. 52 ref.AnglaisMononuclear Cu(II) complexes have been synthesized, and their structure thoroughly characterized by electrospray ionization mass spectrometry (ESI-MS). These 2,2'-bipyridine and 1,10-phenantroline mononuclear Cu(II) complexes have been tested as catalysts in the partial oxidation of tetralin (1,2,3,4-tetrahydronaphthalene), using hydrogen peroxide as oxidant in acetonitrile/water as solvent. The complexes [Cu(bipy)3]Cl2.6H2O (1), [Cu(bipy)2Cl]Cl.5H2O (2), [Cu(bipy)Cl2] (3), [Cu(phen)3]Cl2. 6H2O (4), [Cu(phen)2Cl]Cl.5H2O (5), [Cu(phen)Cl2](6) were able to oxidize tetralin at room temperature, at high degrees of conversion (62.1% with 2) into α-tetralol and α-tetralon at 91% selectivity (81% in 1-tetralon). Depending on nature and number of ligands (bipyridine or phenantroline) surrounding Cu2+ cation, one was able to tailor both the activity toward tetralin oxidation, and the selectivity toward 1-tetralol and 1-tetralone products, but also to raise the yield in valuable α-tetralone.001C01A03Complexe; Catalyseur; Oxydation partielle; Naphtalène(1,2,3,4-tétrahydro); Peroxyde d'hydrogène; Structure; Electrospray; Ionisation; Spectrométrie masse; Oxydant; Nitrile; Acétonitrile; Eau; Température ambiante; Conversion; SélectivitéComposé bicycliqueComplexes; Catalyst; Partial oxidation; Naphthalene(1,2,3,4-tetrahydro); Hydrogen peroxide; Structure; Electrospray; Ionization; Mass spectrometry; Oxidant; Nitrile; Acetonitrile; Water; Room temperature; Conversion; SelectivityBicyclic compoundComplejo; Catalizador; Oxidación parcial; Naftaleno(1,2,3,4-tetrahidro); Peróxido de hydrogeno; Estructura; Electrospray; Ionización; Espectrometría masa; Oxidante; Nitrilo; Acetonitrilo; Agua; Temperatura ambiente; Conversión; SelectividadINIST-18840A.35400018849415016009-0275692
000C56 Improvement in Lipid Profiles in Antiretroviral-Experienced HIV-Positive Patients With Hyperlipidemia After a Switch to Unboosted AtazanavirMichael SensionHIV Clinical Research, North Broward Hospital DistrictFt Lauderdale, FLUSA1 aut.Jose Luiz Neto De AndradePontificia Universidade Católica do ParanáCuritibaBRA2 aut.Beatriz GrinsztejnHospital Evandro ChagasRio de JaneiroBRA3 aut.Jean Michel MolinaHospital Saint-LouisParisFRA4 aut.Isidro ZavalaHospital Dr Angel Leano Consultorio de InfectiologicaJaliscoMEX5 aut.Juan Gonzalez-GarciaHospital La PazMadridESP6 aut.Alice DonnellyPharmaceutical Research Institute, Bristol-Myers SquibbWallingford, CTUSA7 aut.8 aut.9 aut.10 aut.Phillip PhiriPharmaceutical Research Institute, Bristol-Myers SquibbWallingford, CTUSA7 aut.8 aut.9 aut.10 aut.Emilio LedesmaPharmaceutical Research Institute, Bristol-Myers SquibbWallingford, CTUSA7 aut.8 aut.9 aut.10 aut.Donnie McgrathPharmaceutical Research Institute, Bristol-Myers SquibbWallingford, CTUSA7 aut.8 aut.9 aut.10 aut.09-02773422009PASCAL 09-0277342 INISTPascal:09-0277342001D231525-4135J. acquir. immune defic. syndr. : (1999)Journal of acquired immune deficiency syndromes : (1999)AIDSAntiretroviral agentAntiviralAtazanavirHyperlipemiaLipidsMicrobiologyVirologyLipideAntiviralAntirétroviralAtazanavirMicrobiologieVirologieSIDAHyperlipémie
Objective: The primary objective was to compare the change in fasting low-density lipoprotein (LDL) cholesterol from baseline to week 12 between patients receiving an atazanavir-containing regimen and those receiving comparator protease inhibitor (PI) regimens. Design: AI424-067 was a 48-week, open-label, randomized, prospective study of 246 patients on PI-based regimens with hyperlipidemia [fasting LDL cholesterol > 130 mg/dL (>3.4 mmol/L)] and with HIV RNA <50 copies per milliliter. Patients were randomized to switch to atazanavir (400 mg once daily) on day 1 (immediate switch) or maintain current PI regimen for the first 24 weeks, then switch to atazanavir (delayed switch). Methods: Plasma lipid levels were compared with baseline values at weeks 12, 24, and 48. Safety, viral load, and CD4 profiles were also evaluated. Results: At week 12, the mean percent changes in LDL cholesterol from baseline for the immediate-switch and delayed-switch groups were -15% and +1%, respectively (P < 0.0001). Favorable LDL cholesterol levels in the immediate-switch group were sustained through week 48. Both groups maintained comparable virologic control. Switching to atazanavir did not produce a significant change in safety or tolerability. Conclusions: A switch-either immediate or delayed-from a boosted or unboosted PI to unboosted atazanavir in patients with hyperlipidemia was associated with improvements in plasma lipid parameters without loss of virological suppression.
1525-4135J. acquir. immune defic. syndr. : (1999)512Improvement in Lipid Profiles in Antiretroviral-Experienced HIV-Positive Patients With Hyperlipidemia After a Switch to Unboosted AtazanavirSENSION (Michael)DE ANDRADE (Jose Luiz NETO)GRINSZTEJN (Beatriz)MOLINA (Jean Michel)ZAVALA (Isidro)GONZALEZ-GARCIA (Juan)DONNELLY (Alice)PHIRI (Phillip)LEDESMA (Emilio)MCGRATH (Donnie)HIV Clinical Research, North Broward Hospital DistrictFt Lauderdale, FLUSA1 aut.Pontificia Universidade Católica do ParanáCuritibaBRA2 aut.Hospital Evandro ChagasRio de JaneiroBRA3 aut.Hospital Saint-LouisParisFRA4 aut.Hospital Dr Angel Leano Consultorio de InfectiologicaJaliscoMEX5 aut.Hospital La PazMadridESP6 aut.Pharmaceutical Research Institute, Bristol-Myers SquibbWallingford, CTUSA7 aut.8 aut.9 aut.10 aut.067 Study GroupINC153-1622009ENGINIST215763540001879704400800000© 2009 INIST-CNRS. All rights reserved.41 ref.09-0277342PCAJournal of acquired immune deficiency syndromes : (1999)USAObjective: The primary objective was to compare the change in fasting low-density lipoprotein (LDL) cholesterol from baseline to week 12 between patients receiving an atazanavir-containing regimen and those receiving comparator protease inhibitor (PI) regimens. Design: AI424-067 was a 48-week, open-label, randomized, prospective study of 246 patients on PI-based regimens with hyperlipidemia [fasting LDL cholesterol > 130 mg/dL (>3.4 mmol/L)] and with HIV RNA <50 copies per milliliter. Patients were randomized to switch to atazanavir (400 mg once daily) on day 1 (immediate switch) or maintain current PI regimen for the first 24 weeks, then switch to atazanavir (delayed switch). Methods: Plasma lipid levels were compared with baseline values at weeks 12, 24, and 48. Safety, viral load, and CD4 profiles were also evaluated. Results: At week 12, the mean percent changes in LDL cholesterol from baseline for the immediate-switch and delayed-switch groups were -15% and +1%, respectively (P < 0.0001). Favorable LDL cholesterol levels in the immediate-switch group were sustained through week 48. Both groups maintained comparable virologic control. Switching to atazanavir did not produce a significant change in safety or tolerability. Conclusions: A switch-either immediate or delayed-from a boosted or unboosted PI to unboosted atazanavir in patients with hyperlipidemia was associated with improvements in plasma lipid parameters without loss of virological suppression.002A05C10002B05C02J002B05C02DLipide05Lipids05Lípido05Antiviral06Antiviral06Antiviral06Antirétroviral07Antiretroviral agent07Antiretroviral07AtazanavirFR08AtazanavirFR08AtazanavirFR08Microbiologie09Microbiology09Microbiología09Virologie10Virology10Virología10SIDA14AIDS14SIDA14HyperlipémieNM15HyperlipemiaNM15HiperlipemiaNM15Immunodéficit13Immune deficiency13Inmunodeficiencia13ViroseViral diseaseVirosisInfectionInfectionInfecciónImmunopathologie17Immunopathology17Inmunopatología17Maladie métabolique18Metabolic diseases18Metabolismo patología18DyslipémieNM19DyslipemiaNM19DislipemiaNM19201OTOOTOConference on Retroviruses and Opportunistic Infections12Boston, MA USA2005-02-22PASCAL 09-0277342 INISTImprovement in Lipid Profiles in Antiretroviral-Experienced HIV-Positive Patients With Hyperlipidemia After a Switch to Unboosted AtazanavirSENSION (Michael); DE ANDRADE (Jose Luiz NETO); GRINSZTEJN (Beatriz); MOLINA (Jean Michel); ZAVALA (Isidro); GONZALEZ-GARCIA (Juan); DONNELLY (Alice); PHIRI (Phillip); LEDESMA (Emilio); MCGRATH (Donnie)HIV Clinical Research, North Broward Hospital District/Ft Lauderdale, FL/Etats-Unis (1 aut.); Pontificia Universidade Católica do Paraná/Curitiba/Brésil (2 aut.); Hospital Evandro Chagas/Rio de Janeiro/Brésil (3 aut.); Hospital Saint-Louis/Paris/France (4 aut.); Hospital Dr Angel Leano Consultorio de Infectiologica/Jalisco/Mexique (5 aut.); Hospital La Paz/Madrid/Espagne (6 aut.); Pharmaceutical Research Institute, Bristol-Myers Squibb/Wallingford, CT/Etats-Unis (7 aut., 8 aut., 9 aut., 10 aut.)
Publication en série; Congrès; Niveau analytique
Journal of acquired immune deficiency syndromes : (1999); ISSN 1525-4135; Etats-Unis; Da. 2009; Vol. 51; No. 2; Pp. 153-162; Bibl. 41 ref.AnglaisObjective: The primary objective was to compare the change in fasting low-density lipoprotein (LDL) cholesterol from baseline to week 12 between patients receiving an atazanavir-containing regimen and those receiving comparator protease inhibitor (PI) regimens. Design: AI424-067 was a 48-week, open-label, randomized, prospective study of 246 patients on PI-based regimens with hyperlipidemia [fasting LDL cholesterol > 130 mg/dL (>3.4 mmol/L)] and with HIV RNA <50 copies per milliliter. Patients were randomized to switch to atazanavir (400 mg once daily) on day 1 (immediate switch) or maintain current PI regimen for the first 24 weeks, then switch to atazanavir (delayed switch). Methods: Plasma lipid levels were compared with baseline values at weeks 12, 24, and 48. Safety, viral load, and CD4 profiles were also evaluated. Results: At week 12, the mean percent changes in LDL cholesterol from baseline for the immediate-switch and delayed-switch groups were -15% and +1%, respectively (P < 0.0001). Favorable LDL cholesterol levels in the immediate-switch group were sustained through week 48. Both groups maintained comparable virologic control. Switching to atazanavir did not produce a significant change in safety or tolerability. Conclusions: A switch-either immediate or delayed-from a boosted or unboosted PI to unboosted atazanavir in patients with hyperlipidemia was associated with improvements in plasma lipid parameters without loss of virological suppression.002A05C10; 002B05C02J; 002B05C02DLipide; Antiviral; Antirétroviral; Atazanavir; Microbiologie; Virologie; SIDA; HyperlipémieImmunodéficit; Virose; Infection; Immunopathologie; Maladie métabolique; DyslipémieLipids; Antiviral; Antiretroviral agent; Atazanavir; Microbiology; Virology; AIDS; HyperlipemiaImmune deficiency; Viral disease; Infection; Immunopathology; Metabolic diseases; DyslipemiaLípido; Antiviral; Antiretroviral; Atazanavir; Microbiología; Virología; SIDA; HiperlipemiaINIST-21576.35400018797044008009-0277342
000C57 Decomposition in tropical forests: a pan-tropical study of the effects of litter type, litter placement and mesofaunal exclusion across a precipitation gradientJennifer S. PowersDepartment of Ecology, Evolution and Behavior, and Plant Biology, University of MinnesotaMN 55108USA1 aut.Rebecca A. MontgomeryForest Resources, University of MinnesotaMN 55108USA2 aut.E. Carol AdairEcology, Evolution and Behavior and Soil, Water and Climate, University of MinnesotaMN 55108USA3 aut.Francis Q. BrearleyDepartment of Environmental and Geographical Sciences, Manchester Metropolitan University, Chester StreetManchester M1 5GDGBR4 aut.Saara J. DewaitDepartment of Biological Sciences, Clemson University, 132 Long HallClemson, SC 29634USA5 aut.Camila T. CastanhoInstituto de Biociências, Universidade de São PauloSão PauloBRA6 aut.18 aut.Jerome ChaveLaboratoire Evolution et Diversité Biologique, UMR5174 CNRS/UPS, Bâtiment 4R3, 118 route de Narbonne31062 ToulouseFRA7 aut.Erika DeinertOrganization for Tropical StudiesSan JoseCRI8 aut.J Rg U. GanzhornDepartment of Animal Ecology and Conservation, Hamburg University, Martin-Luther-King Platz 320146 HamburgDEU9 aut.Matthew E. GilbertDepartment of Organismic and Evolutionary Biology, Harvard UniversityCambridge, MA 02138USA10 aut.José Antonio Gonzalez-LturbeBiocenosis A. C., Calle 4 No. 356 x 11 y 15. Col. Las Águilas CP 97134Mérida, YucatánMEX11 aut.Sarayudh BunyavejchewinNational Parks, Wildlife and Plant Conservation Department, Research OfficeChatuchak, Bangkok 10900THA12 aut.H. Ricardo GrauConicet-Liey, Facultad de Ciencias Naturales, Universidad Nacional de TucumánSan Miguel de TucumánARG13 aut.Kyle E. HarmsDepartment of Biological Sciences, Louisiana State University, 202 Life Sciences BuildingBaton Rouge, LA 70803USA14 aut.Smithsonian Tropical Research InstituteBalboa, AnconPAN14 aut.Ankila HiremathAshoka Trust for Research in Ecology and the Environment (ATREE), K-1 Commercial Complex, Birbal Road, Jangpura ExtensiónNew Delhi 110014IND15 aut.Silvia Iriarte-VivarUnidad de Recursos Naturales, Centro de Investigacion Científica de Yucatán A.C., Calle 43 No. 130, Chuburna de Hidalgo 97200Mérida, YucatánMEX16 aut.Eric ManzaneDepartment of Biology, University of MiamiCoral Gables, FL 33146USA17 aut.Alexandre A. De OliveiraInstituto de Biociências, Universidade de São PauloSão PauloBRA6 aut.18 aut.Lourens PoorterForest Ecology and Forest Management Group and Resource Ecology Group, Centre for Ecosystem Studies, Wageningen University, P.O. Box 476700 AA WageningenNLD19 aut.Instituto Boliviano de Investigación Forestal, Casilla 6204Santa CruzBOL19 aut.Jean-Baptiste RamanamanjatoQIT Madagascar Minerals, BP 225Tolagnaro 614MDG20 aut.Carl SalkDepartment of Biology, Duke UniversityDurham, NC 27708USA21 aut.Amanda VarelaLaboratorio de Ecología de Suelos y Hongos Tropicales, Unidad de Ecologia y Sistemática, Departamento de Biologia, Facultad de Ciencias, Pontificia Universidad JaverianaBogotáCOL22 aut.George D. WeiblenPlant Biology and the Bell Museum of Natural History, University of MinnesotaMN 55108USA23 aut.Manuel T. LerdauEnvironmental Sciences and Biology Departments, University of Virginia, 291 McCormick RdCharlottesville, VA 22904USA24 aut.09-02785302009PASCAL 09-0278530 INISTPascal:09-0278530001D220022-0477J. Ecol.Journal of EcologyClimateDecomposerDecompositionFaunaLitterPrecipitationTropical forestTropical zoneDécompositionForêt tropicaleZone tropicaleLitièrePrécipitationClimatDécomposeurFaune
1. Litter decomposition recycles nutrients and causes large fluxes of carbon dioxide into the atmosphere. It is typically assumed that climate, litter quality and decomposer communities determine litter decay rates, yet few comparative studies have examined their relative contributions in tropical forests. 2. We used a short-term litterbag experiment to quantify the effects of litter quality, placement and mesofaunal exclusion on decomposition in 23 tropical forests in 14 countries. Annual precipitation varied among sites (760-5797 mm). At each site, two standard substrates (Raphia farinifera and Laurus nobilis) were decomposed in fine- and coarse-mesh litterbags both above and below ground for approximately 1 year. 3. Decomposition was rapid, with >95% mass loss within a year at most sites. Litter quality, placement and mesofaunal exclusion all independently affected decomposition, but the magnitude depended upon site. Both the average decomposition rate at each site and the ratio of above- to below-ground decay increased linearly with annual precipitation, explaining 60-65% of among-site variation. Excluding mesofauna had the largest impact on decomposition, reducing decomposition rates by half on average, but the magnitude of decrease was largely independent of climate. This suggests that the decomposer community might play an important role in explaining patterns of decomposition among sites. Which litter type decomposed fastest varied by site, but was not related to climate. 4. Synthesis. A key goal of ecology is to identify general patterns across ecological communities, as well as relevant site-specific details to understand local dynamics. Our pan-tropical study shows that certain aspects of decomposition, including average decomposition rates and the ratio of above- to below-ground decomposition are highly correlated with a simple climatic index: mean annual precipitation. However, we found no relationship between precipitation and effects of mesofaunal exclusion or litter type, suggesting that site-specific details may also be required to understand how these factors affect decomposition at local scales.
0022-0477JECOABJ. Ecol.974Decomposition in tropical forests: a pan-tropical study of the effects of litter type, litter placement and mesofaunal exclusion across a precipitation gradientPOWERS (Jennifer S.)MONTGOMERY (Rebecca A.)CAROL ADAIR (E.)BREARLEY (Francis Q.)DEWAIT (Saara J.)CASTANHO (Camila T.)CHAVE (Jerome)DEINERT (Erika)GANZHORN (Jörg U.)GILBERT (Matthew E.)GONZALEZ-LTURBE (José Antonio)BUNYAVEJCHEWIN (Sarayudh)RICARDO GRAU (H.)HARMS (Kyle E.)HIREMATH (Ankila)IRIARTE-VIVAR (Silvia)MANZANE (Eric)DE OLIVEIRA (Alexandre A.)POORTER (Lourens)RAMANAMANJATO (Jean-Baptiste)SALK (Carl)VARELA (Amanda)WEIBLEN (George D.)LERDAU (Manuel T.)Department of Ecology, Evolution and Behavior, and Plant Biology, University of MinnesotaMN 55108USA1 aut.Forest Resources, University of MinnesotaMN 55108USA2 aut.Ecology, Evolution and Behavior and Soil, Water and Climate, University of MinnesotaMN 55108USA3 aut.Department of Environmental and Geographical Sciences, Manchester Metropolitan University, Chester StreetManchester M1 5GDGBR4 aut.Department of Biological Sciences, Clemson University, 132 Long HallClemson, SC 29634USA5 aut.Instituto de Biociências, Universidade de São PauloSão PauloBRA6 aut.18 aut.Laboratoire Evolution et Diversité Biologique, UMR5174 CNRS/UPS, Bâtiment 4R3, 118 route de Narbonne31062 ToulouseFRA7 aut.Organization for Tropical StudiesSan JoseCRI8 aut.Department of Animal Ecology and Conservation, Hamburg University, Martin-Luther-King Platz 320146 HamburgDEU9 aut.Department of Organismic and Evolutionary Biology, Harvard UniversityCambridge, MA 02138USA10 aut.Biocenosis A. C., Calle 4 No. 356 x 11 y 15. Col. Las Águilas CP 97134Mérida, YucatánMEX11 aut.National Parks, Wildlife and Plant Conservation Department, Research OfficeChatuchak, Bangkok 10900THA12 aut.Conicet-Liey, Facultad de Ciencias Naturales, Universidad Nacional de TucumánSan Miguel de TucumánARG13 aut.Department of Biological Sciences, Louisiana State University, 202 Life Sciences BuildingBaton Rouge, LA 70803USA14 aut.Smithsonian Tropical Research InstituteBalboa, AnconPAN14 aut.Ashoka Trust for Research in Ecology and the Environment (ATREE), K-1 Commercial Complex, Birbal Road, Jangpura ExtensiónNew Delhi 110014IND15 aut.Unidad de Recursos Naturales, Centro de Investigacion Científica de Yucatán A.C., Calle 43 No. 130, Chuburna de Hidalgo 97200Mérida, YucatánMEX16 aut.Department of Biology, University of MiamiCoral Gables, FL 33146USA17 aut.Forest Ecology and Forest Management Group and Resource Ecology Group, Centre for Ecosystem Studies, Wageningen University, P.O. Box 476700 AA WageningenNLD19 aut.Instituto Boliviano de Investigación Forestal, Casilla 6204Santa CruzBOL19 aut.QIT Madagascar Minerals, BP 225Tolagnaro 614MDG20 aut.Department of Biology, Duke UniversityDurham, NC 27708USA21 aut.Laboratorio de Ecología de Suelos y Hongos Tropicales, Unidad de Ecologia y Sistemática, Departamento de Biologia, Facultad de Ciencias, Pontificia Universidad JaverianaBogotáCOL22 aut.Plant Biology and the Bell Museum of Natural History, University of MinnesotaMN 55108USA23 aut.Environmental Sciences and Biology Departments, University of Virginia, 291 McCormick RdCharlottesville, VA 22904USA24 aut.801-8112009ENGINIST20043540001885579202100000© 2009 INIST-CNRS. All rights reserved.1 p.1/409-0278530PAJournal of EcologyGBR1. Litter decomposition recycles nutrients and causes large fluxes of carbon dioxide into the atmosphere. It is typically assumed that climate, litter quality and decomposer communities determine litter decay rates, yet few comparative studies have examined their relative contributions in tropical forests. 2. We used a short-term litterbag experiment to quantify the effects of litter quality, placement and mesofaunal exclusion on decomposition in 23 tropical forests in 14 countries. Annual precipitation varied among sites (760-5797 mm). At each site, two standard substrates (Raphia farinifera and Laurus nobilis) were decomposed in fine- and coarse-mesh litterbags both above and below ground for approximately 1 year. 3. Decomposition was rapid, with >95% mass loss within a year at most sites. Litter quality, placement and mesofaunal exclusion all independently affected decomposition, but the magnitude depended upon site. Both the average decomposition rate at each site and the ratio of above- to below-ground decay increased linearly with annual precipitation, explaining 60-65% of among-site variation. Excluding mesofauna had the largest impact on decomposition, reducing decomposition rates by half on average, but the magnitude of decrease was largely independent of climate. This suggests that the decomposer community might play an important role in explaining patterns of decomposition among sites. Which litter type decomposed fastest varied by site, but was not related to climate. 4. Synthesis. A key goal of ecology is to identify general patterns across ecological communities, as well as relevant site-specific details to understand local dynamics. Our pan-tropical study shows that certain aspects of decomposition, including average decomposition rates and the ratio of above- to below-ground decomposition are highly correlated with a simple climatic index: mean annual precipitation. However, we found no relationship between precipitation and effects of mesofaunal exclusion or litter type, suggesting that site-specific details may also be required to understand how these factors affect decomposition at local scales.002A14B01002A33A02Décomposition01Decomposition01Descomposición01Forêt tropicale02Tropical forest02Bosque tropical02Zone tropicale03Tropical zone03Zona tropical03LitièreNT04LitterNT04HojarascaNT04Précipitation05Precipitation05Precipitación05Climat06Climate06Clima06Décomposeur07Decomposer07Descomponedor07Faune08Fauna08Fauna08208OTOOTOPASCAL 09-0278530 INISTDecomposition in tropical forests: a pan-tropical study of the effects of litter type, litter placement and mesofaunal exclusion across a precipitation gradientPOWERS (Jennifer S.); MONTGOMERY (Rebecca A.); CAROL ADAIR (E.); BREARLEY (Francis Q.); DEWAIT (Saara J.); CASTANHO (Camila T.); CHAVE (Jerome); DEINERT (Erika); GANZHORN (Jörg U.); GILBERT (Matthew E.); GONZALEZ-LTURBE (José Antonio); BUNYAVEJCHEWIN (Sarayudh); RICARDO GRAU (H.); HARMS (Kyle E.); HIREMATH (Ankila); IRIARTE-VIVAR (Silvia); MANZANE (Eric); DE OLIVEIRA (Alexandre A.); POORTER (Lourens); RAMANAMANJATO (Jean-Baptiste); SALK (Carl); VARELA (Amanda); WEIBLEN (George D.); LERDAU (Manuel T.)Department of Ecology, Evolution and Behavior, and Plant Biology, University of Minnesota/MN 55108/Etats-Unis (1 aut.); Forest Resources, University of Minnesota/MN 55108/Etats-Unis (2 aut.); Ecology, Evolution and Behavior and Soil, Water and Climate, University of Minnesota/MN 55108/Etats-Unis (3 aut.); Department of Environmental and Geographical Sciences, Manchester Metropolitan University, Chester Street/Manchester M1 5GD/Royaume-Uni (4 aut.); Department of Biological Sciences, Clemson University, 132 Long Hall/Clemson, SC 29634/Etats-Unis (5 aut.); Instituto de Biociências, Universidade de São Paulo/São Paulo/Brésil (6 aut., 18 aut.); Laboratoire Evolution et Diversité Biologique, UMR5174 CNRS/UPS, Bâtiment 4R3, 118 route de Narbonne/31062 Toulouse/France (7 aut.); Organization for Tropical Studies/San Jose/Costa Rica (8 aut.); Department of Animal Ecology and Conservation, Hamburg University, Martin-Luther-King Platz 3/20146 Hamburg/Allemagne (9 aut.); Department of Organismic and Evolutionary Biology, Harvard University/Cambridge, MA 02138/Etats-Unis (10 aut.); Biocenosis A. C., Calle 4 No. 356 x 11 y 15. Col. Las Águilas CP 97134/Mérida, Yucatán/Mexique (11 aut.); National Parks, Wildlife and Plant Conservation Department, Research Office/Chatuchak, Bangkok 10900/Thaïlande (12 aut.); Conicet-Liey, Facultad de Ciencias Naturales, Universidad Nacional de Tucumán/San Miguel de Tucumán/Argentine (13 aut.); Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building/Baton Rouge, LA 70803/Etats-Unis (14 aut.); Smithsonian Tropical Research Institute/Balboa, Ancon/Panama (14 aut.); Ashoka Trust for Research in Ecology and the Environment (ATREE), K-1 Commercial Complex, Birbal Road, Jangpura Extensión/New Delhi 110014/Inde (15 aut.); Unidad de Recursos Naturales, Centro de Investigacion Científica de Yucatán A.C., Calle 43 No. 130, Chuburna de Hidalgo 97200/Mérida, Yucatán/Mexique (16 aut.); Department of Biology, University of Miami/Coral Gables, FL 33146/Etats-Unis (17 aut.); Forest Ecology and Forest Management Group and Resource Ecology Group, Centre for Ecosystem Studies, Wageningen University, P.O. Box 47/6700 AA Wageningen/Pays-Bas (19 aut.); Instituto Boliviano de Investigación Forestal, Casilla 6204/Santa Cruz/Bolivie (19 aut.); QIT Madagascar Minerals, BP 225/Tolagnaro 614/Madagascar (20 aut.); Department of Biology, Duke University/Durham, NC 27708/Etats-Unis (21 aut.); Laboratorio de Ecología de Suelos y Hongos Tropicales, Unidad de Ecologia y Sistemática, Departamento de Biologia, Facultad de Ciencias, Pontificia Universidad Javeriana/Bogotá/Colombie (22 aut.); Plant Biology and the Bell Museum of Natural History, University of Minnesota/MN 55108/Etats-Unis (23 aut.); Environmental Sciences and Biology Departments, University of Virginia, 291 McCormick Rd/Charlottesville, VA 22904/Etats-Unis (24 aut.)
Publication en série; Niveau analytique
Journal of Ecology; ISSN 0022-0477; Coden JECOAB; Royaume-Uni; Da. 2009; Vol. 97; No. 4; Pp. 801-811; Bibl. 1 p.1/4Anglais1. Litter decomposition recycles nutrients and causes large fluxes of carbon dioxide into the atmosphere. It is typically assumed that climate, litter quality and decomposer communities determine litter decay rates, yet few comparative studies have examined their relative contributions in tropical forests. 2. We used a short-term litterbag experiment to quantify the effects of litter quality, placement and mesofaunal exclusion on decomposition in 23 tropical forests in 14 countries. Annual precipitation varied among sites (760-5797 mm). At each site, two standard substrates (Raphia farinifera and Laurus nobilis) were decomposed in fine- and coarse-mesh litterbags both above and below ground for approximately 1 year. 3. Decomposition was rapid, with >95% mass loss within a year at most sites. Litter quality, placement and mesofaunal exclusion all independently affected decomposition, but the magnitude depended upon site. Both the average decomposition rate at each site and the ratio of above- to below-ground decay increased linearly with annual precipitation, explaining 60-65% of among-site variation. Excluding mesofauna had the largest impact on decomposition, reducing decomposition rates by half on average, but the magnitude of decrease was largely independent of climate. This suggests that the decomposer community might play an important role in explaining patterns of decomposition among sites. Which litter type decomposed fastest varied by site, but was not related to climate. 4. Synthesis. A key goal of ecology is to identify general patterns across ecological communities, as well as relevant site-specific details to understand local dynamics. Our pan-tropical study shows that certain aspects of decomposition, including average decomposition rates and the ratio of above- to below-ground decomposition are highly correlated with a simple climatic index: mean annual precipitation. However, we found no relationship between precipitation and effects of mesofaunal exclusion or litter type, suggesting that site-specific details may also be required to understand how these factors affect decomposition at local scales.002A14B01; 002A33A02Décomposition; Forêt tropicale; Zone tropicale; Litière; Précipitation; Climat; Décomposeur; FauneDecomposition; Tropical forest; Tropical zone; Litter; Precipitation; Climate; Decomposer; FaunaDescomposición; Bosque tropical; Zona tropical; Hojarasca; Precipitación; Clima; Descomponedor; FaunaINIST-2004.35400018855792021009-0278530
000C58 The molybdate-zinc conversion processC. G. Da SilvaLNDC, EE/PEMM/COPPE, Universidade Federal do Rio de Janeiro, C.P. 68.505CEP 21941-972, Rio de Janeiro-RJBRA1 aut.2 aut.3 aut.I. C. P. Margarit-MattosLNDC, EE/PEMM/COPPE, Universidade Federal do Rio de Janeiro, C.P. 68.505CEP 21941-972, Rio de Janeiro-RJBRA1 aut.2 aut.3 aut.DPI, Escola de Química, Universidade Federal do Rio de JaneiroCEP 21949-900, Rio de Janeiro-RJBRA2 aut.O. R. MattesLNDC, EE/PEMM/COPPE, Universidade Federal do Rio de Janeiro, C.P. 68.505CEP 21941-972, Rio de Janeiro-RJBRA1 aut.2 aut.3 aut.H. PerrotCNRS, UPR15. LISE, Université Pierre et Marie Curie, 4 Place Jussieu. CP 13375005 ParisFRA4 aut.5 aut.6 aut.B. TribolletCNRS, UPR15. LISE, Université Pierre et Marie Curie, 4 Place Jussieu. CP 13375005 ParisFRA4 aut.5 aut.6 aut.V. VivierCNRS, UPR15. LISE, Université Pierre et Marie Curie, 4 Place Jussieu. CP 13375005 ParisFRA4 aut.5 aut.6 aut.09-02797572009PASCAL 09-0279757 INISTPascal:09-0279757001D210010-938XCorros. sci.Corrosion scienceCorrosionImpedanceMolybdatesPhotoelectron spectrometryScanning electron microscopyMolybdateImpédanceMicroscopie électronique balayageSpectrométrie photoélectronCorrosion
The molybdate-zinc conversion process was investigated by means of different techniques such as EIS, interfacial pH measurements, QCM and SECM. SEM and XPS complemented the electrochemical measurements. EIS results have shown different behaviour as function of the pH of the solution. Interfacial pH measurements have evidenced that the coatings were formed after about 200 s. The QCM measurements have exhibited three main characteristic regions and have shown that the formation kinetics was pH-dependent. The surface characterization has shown the presence of MO5+ inside the coatings. The Mo and P amounts did not markedly change when the conversion time was increased.
0010-938XCRRSAACorros. sci.511The molybdate-zinc conversion processDA SILVA (C. G.)MARGARIT-MATTOS (I. C. P.)MATTES (O. R.)PERROT (H.)TRIBOLLET (B.)VIVIER (V.)LNDC, EE/PEMM/COPPE, Universidade Federal do Rio de Janeiro, C.P. 68.505CEP 21941-972, Rio de Janeiro-RJBRA1 aut.2 aut.3 aut.DPI, Escola de Química, Universidade Federal do Rio de JaneiroCEP 21949-900, Rio de Janeiro-RJBRA2 aut.CNRS, UPR15. LISE, Université Pierre et Marie Curie, 4 Place Jussieu. CP 13375005 ParisFRA4 aut.5 aut.6 aut.151-1582009ENGINIST94093540001841139801900000© 2009 INIST-CNRS. All rights reserved.39 ref.09-0279757PACorrosion scienceGBRThe molybdate-zinc conversion process was investigated by means of different techniques such as EIS, interfacial pH measurements, QCM and SECM. SEM and XPS complemented the electrochemical measurements. EIS results have shown different behaviour as function of the pH of the solution. Interfacial pH measurements have evidenced that the coatings were formed after about 200 s. The QCM measurements have exhibited three main characteristic regions and have shown that the formation kinetics was pH-dependent. The surface characterization has shown the presence of MO5+ inside the coatings. The Mo and P amounts did not markedly change when the conversion time was increased.001D11E02240MolybdateNA55MolybdatesNA55MolibdatoNA55Impédance56Impedance56Impedancia56Microscopie électronique balayage57Scanning electron microscopy57Rasterelektronenmikroskopie57Microscopía electrónica barrido57Spectrométrie photoélectron58Photoelectron spectrometry58ESCA Spektrometrie58Espectrometría fotoelectrón58Corrosion59Corrosion59Korrosion59Corrosión59208OTOOTOPASCAL 09-0279757 INISTThe molybdate-zinc conversion processDA SILVA (C. G.); MARGARIT-MATTOS (I. C. P.); MATTES (O. R.); PERROT (H.); TRIBOLLET (B.); VIVIER (V.)LNDC, EE/PEMM/COPPE, Universidade Federal do Rio de Janeiro, C.P. 68.505/CEP 21941-972, Rio de Janeiro-RJ/Brésil (1 aut., 2 aut., 3 aut.); DPI, Escola de Química, Universidade Federal do Rio de Janeiro/CEP 21949-900, Rio de Janeiro-RJ/Brésil (2 aut.); CNRS, UPR15. LISE, Université Pierre et Marie Curie, 4 Place Jussieu. CP 133/75005 Paris/France (4 aut., 5 aut., 6 aut.)
Publication en série; Niveau analytique
Corrosion science; ISSN 0010-938X; Coden CRRSAA; Royaume-Uni; Da. 2009; Vol. 51; No. 1; Pp. 151-158; Bibl. 39 ref.AnglaisThe molybdate-zinc conversion process was investigated by means of different techniques such as EIS, interfacial pH measurements, QCM and SECM. SEM and XPS complemented the electrochemical measurements. EIS results have shown different behaviour as function of the pH of the solution. Interfacial pH measurements have evidenced that the coatings were formed after about 200 s. The QCM measurements have exhibited three main characteristic regions and have shown that the formation kinetics was pH-dependent. The surface characterization has shown the presence of MO5+ inside the coatings. The Mo and P amounts did not markedly change when the conversion time was increased.001D11E02; 240Molybdate; Impédance; Microscopie électronique balayage; Spectrométrie photoélectron; CorrosionMolybdates; Impedance; Scanning electron microscopy; Photoelectron spectrometry; CorrosionRasterelektronenmikroskopie; ESCA Spektrometrie; KorrosionMolibdato; Impedancia; Microscopía electrónica barrido; Espectrometría fotoelectrón; CorrosiónINIST-9409.35400018411398019009-0279757
000C59 Removable singularities for sections of Riemannian submersions of prescribed mean curvatureClaudemir LeandroInstituto de Matemática Pura e Aplicada, IMPA, Estrada Donu Castorina 110Rio de Janeiro 22460-320BRA1 aut.Harold RosenbergInstitut de Mathématiques, Université Paris VII, 2 place Jussieu75005 ParisFRA2 aut.09-02817872009PASCAL 09-0281787 INISTPascal:09-0281787001D200007-4497Bull. sci. math. : (Paris, 1885)Bulletin des sciences mathématiques : (Paris. 1885)CurvatureFiberGeodesicGrowthMathematicsMean estimationSingularitySubmersionSurfaceSingularitéSubmersionEstimation moyenneCourbureFibreGéodésiqueCroissanceSurfaceMathématiques53A1053C2258E10
We will prove that isolated singularities of sections with prescribed mean curvature of a Riemannian submersion fibered by geodesics of a vertical Killing field, are removable. Also we obtain information on the growth of the difference of two sections u, ù: Ω → M, having the same prescribed mean curvature and u = ù on ∂Ω. This generalizes Theorem 2 of [P. Collin, R. Krust, Le problème de Dirichlet l'équation des surfaces minimales sur des domaines non bornés, Bull. S.M.F. 119 (4) (1991) 443-462].
0007-4497BSMQA9Bull. sci. math. : (Paris, 1885)1334Removable singularities for sections of Riemannian submersions of prescribed mean curvatureLEANDRO (Claudemir)ROSENBERG (Harold)Instituto de Matemática Pura e Aplicada, IMPA, Estrada Donu Castorina 110Rio de Janeiro 22460-320BRA1 aut.Institut de Mathématiques, Université Paris VII, 2 place Jussieu75005 ParisFRA2 aut.445-4522009ENGINIST7573540001870934600900000© 2009 INIST-CNRS. All rights reserved.6 ref.09-0281787PABulletin des sciences mathématiques : (Paris. 1885)NLDWe will prove that isolated singularities of sections with prescribed mean curvature of a Riemannian submersion fibered by geodesics of a vertical Killing field, are removable. Also we obtain information on the growth of the difference of two sections u, ù: Ω → M, having the same prescribed mean curvature and u = ù on ∂Ω. This generalizes Theorem 2 of [P. Collin, R. Krust, Le problème de Dirichlet l'équation des surfaces minimales sur des domaines non bornés, Bull. S.M.F. 119 (4) (1991) 443-462].001A02K01001A02F03001A02G04Singularité17Singularity17Singularidad17Submersion18Submersion18Sumersión18Estimation moyenne19Mean estimation19Estimación promedio19Courbure20Curvature20Curvatura20Fibre21Fiber21Fibra21Géodésique22Geodesic22Geodésico22Croissance23Growth23Crecimiento23Surface24Surface24Superficie24Mathématiques25Mathematics25Matemáticas2553A10INC7053C22INC7158E10INC72208OTOOTOPASCAL 09-0281787 INISTRemovable singularities for sections of Riemannian submersions of prescribed mean curvatureLEANDRO (Claudemir); ROSENBERG (Harold)Instituto de Matemática Pura e Aplicada, IMPA, Estrada Donu Castorina 110/Rio de Janeiro 22460-320/Brésil (1 aut.); Institut de Mathématiques, Université Paris VII, 2 place Jussieu/75005 Paris/France (2 aut.)
Publication en série; Niveau analytique
Bulletin des sciences mathématiques : (Paris. 1885); ISSN 0007-4497; Coden BSMQA9; Pays-Bas; Da. 2009; Vol. 133; No. 4; Pp. 445-452; Bibl. 6 ref.AnglaisWe will prove that isolated singularities of sections with prescribed mean curvature of a Riemannian submersion fibered by geodesics of a vertical Killing field, are removable. Also we obtain information on the growth of the difference of two sections u, ù: Ω → M, having the same prescribed mean curvature and u = ù on ∂Ω. This generalizes Theorem 2 of [P. Collin, R. Krust, Le problème de Dirichlet l'équation des surfaces minimales sur des domaines non bornés, Bull. S.M.F. 119 (4) (1991) 443-462].001A02K01; 001A02F03; 001A02G04Singularité; Submersion; Estimation moyenne; Courbure; Fibre; Géodésique; Croissance; Surface; Mathématiques; 53A10; 53C22; 58E10Singularity; Submersion; Mean estimation; Curvature; Fiber; Geodesic; Growth; Surface; MathematicsSingularidad; Sumersión; Estimación promedio; Curvatura; Fibra; Geodésico; Crecimiento; Superficie; MatemáticasINIST-757.35400018709346009009-0281787
000C60 Proficiency test of plasma free and total metanephrines: report from a study groupDilo PillaiDepartment of Clinical Chemistry, The Prince of Wales HospitalRandwickAUS1 aut.H. Alec RossDepartment of Chemical Endocrinology, Radboud University Nijmegen Medical CentreNijmegenNLD2 aut.J Rgen KratzschInstitute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital LeipzigLeipzigDEU3 aut.William PedrosaInstituto Hermes Pardini AimorésAimorésBRA4 aut.Ido KemaDepartment of Clinical Chemistry/Binding Analysis, University Medical Centre GroningenGroningenNLD5 aut.Kirsten HoadCore Clinical Pathology and Biochemistry Pathwest Laboratory Medicine WA Royal Perth HospitalWestern AustraliaAUS6 aut.Nathalie RouaixCentre Hospitalier Régional Universitaire de Lille, Laboratoire de BiochimieLilleFRA7 aut.Marc FathiService de médecine de laboratoire, Hôpital Cantonal Universitaire de GenèveGenèveCHE8 aut.Herbert NaderRECIPE GmbHMunichDEU9 aut.Bruno MathianProBioQualLyonFRA10 aut.Eric GrouzmannDivision of Pharmacology and Clinical Toxicology, University Hospital of LausanneLausanneCHE11 aut.09-02840202009PASCAL 09-0284020 INISTPascal:09-0284020001D191434-6621Clin. chem. lab. med.Clinical chemistry and laboratory medicineBlood plasmaClinical biologyExplorationFree formMedical screeningMedicineMetadrenalineMetanephrineReportExplorationPlasma sanguinForme libreMétadrénalineCompte renduDépistageBiologie cliniqueMédecineMétanéphrine1434-6621Clin. chem. lab. med.476Proficiency test of plasma free and total metanephrines: report from a study groupPILLAI (Dilo)ROSS (H. Alec)KRATZSCH (Jürgen)PEDROSA (William)KEMA (Ido)HOAD (Kirsten)ROUAIX (Nathalie)FATHI (Marc)NADER (Herbert)MATHIAN (Bruno)GROUZMANN (Eric)Department of Clinical Chemistry, The Prince of Wales HospitalRandwickAUS1 aut.Department of Chemical Endocrinology, Radboud University Nijmegen Medical CentreNijmegenNLD2 aut.Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital LeipzigLeipzigDEU3 aut.Instituto Hermes Pardini AimorésAimorésBRA4 aut.Department of Clinical Chemistry/Binding Analysis, University Medical Centre GroningenGroningenNLD5 aut.Core Clinical Pathology and Biochemistry Pathwest Laboratory Medicine WA Royal Perth HospitalWestern AustraliaAUS6 aut.Centre Hospitalier Régional Universitaire de Lille, Laboratoire de BiochimieLilleFRA7 aut.Service de médecine de laboratoire, Hôpital Cantonal Universitaire de GenèveGenèveCHE8 aut.RECIPE GmbHMunichDEU9 aut.ProBioQualLyonFRA10 aut.Division of Pharmacology and Clinical Toxicology, University Hospital of LausanneLausanneCHE11 aut.786-7902009ENGINIST103193540001871435301700000© 2009 INIST-CNRS. All rights reserved.11 ref.09-0284020PLTAClinical chemistry and laboratory medicineDEU002B24002B01Exploration02Exploration02Exploración02Plasma sanguin03Blood plasma03Plasma sanguíneo03Forme libre05Free form05Forma libre05Métadrénaline06Metadrenaline06Metadrenalina06Compte rendu08Report08Informe08Dépistage09Medical screening09Descubrimiento09Biologie clinique11Clinical biology11Biología clínica11Médecine12Medicine12Medicina12MétanéphrineCD96MetanephrineCD96MetanefrinaCD96208OTOOTOPASCAL 09-0284020 INISTProficiency test of plasma free and total metanephrines: report from a study groupPILLAI (Dilo); ROSS (H. Alec); KRATZSCH (Jürgen); PEDROSA (William); KEMA (Ido); HOAD (Kirsten); ROUAIX (Nathalie); FATHI (Marc); NADER (Herbert); MATHIAN (Bruno); GROUZMANN (Eric)Department of Clinical Chemistry, The Prince of Wales Hospital/Randwick/Australie (1 aut.); Department of Chemical Endocrinology, Radboud University Nijmegen Medical Centre/Nijmegen/Pays-Bas (2 aut.); Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig/Leipzig/Allemagne (3 aut.); Instituto Hermes Pardini Aimorés/Aimorés/Brésil (4 aut.); Department of Clinical Chemistry/Binding Analysis, University Medical Centre Groningen/Groningen/Pays-Bas (5 aut.); Core Clinical Pathology and Biochemistry Pathwest Laboratory Medicine WA Royal Perth Hospital/Western Australia/Australie (6 aut.); Centre Hospitalier Régional Universitaire de Lille, Laboratoire de Biochimie/Lille/France (7 aut.); Service de médecine de laboratoire, Hôpital Cantonal Universitaire de Genève/Genève/Suisse (8 aut.); RECIPE GmbH/Munich/Allemagne (9 aut.); ProBioQual/Lyon/France (10 aut.); Division of Pharmacology and Clinical Toxicology, University Hospital of Lausanne/Lausanne/Suisse (11 aut.)
Publication en série; Lettre à l'éditeur; Niveau analytique
Clinical chemistry and laboratory medicine; ISSN 1434-6621; Allemagne; Da. 2009; Vol. 47; No. 6; Pp. 786-790; Bibl. 11 ref.Anglais002B24; 002B01Exploration; Plasma sanguin; Forme libre; Métadrénaline; Compte rendu; Dépistage; Biologie clinique; Médecine; MétanéphrineExploration; Blood plasma; Free form; Metadrenaline; Report; Medical screening; Clinical biology; Medicine; MetanephrineExploración; Plasma sanguíneo; Forma libre; Metadrenalina; Informe; Descubrimiento; Biología clínica; Medicina; MetanefrinaINIST-10319.35400018714353017009-0284020
000C61 Qualitative study of supramolecular assemblies of β-cyclodextrin and cholecalciferol and the cobalt (II), copper (II) and zinc (II) ionsAna Lucia Ramalho MerceLEQ-UFPR, Departamento de Quimica, Centro Politécnico, CP 19081CEP 81531-990 Curitiba-PrBRA1 aut.2 aut.Jaqueline NicoliniLEQ-UFPR, Departamento de Quimica, Centro Politécnico, CP 19081CEP 81531-990 Curitiba-PrBRA1 aut.2 aut.Mustayeen A. KhanSONAS, EA 921, Faculté de Pharmacie, 16 Boulevard Daviers49045 AngersFRA3 aut.4 aut.Gilles BouetSONAS, EA 921, Faculté de Pharmacie, 16 Boulevard Daviers49045 AngersFRA3 aut.4 aut.09-02861902009PASCAL 09-0286190 INISTPascal:09-0286190001D180144-8617Carbohydr. polym.Carbohydrate polymersCobalt II ComplexesColecalciferolCopper II ComplexesCyclodextrinExperimental studyMetal ionSupramolecular structureTernary complexZinc II ComplexesCyclodextrineComplexe ternaireColécalciférolIon métalliqueCobalt II ComplexeCuivre II ComplexeZinc II ComplexeStructure supramoléculaireEtude expérimentale
A 13C NMR in DMSO-d6 as solvent, diffuse reflectance spectra and X-ray powder diagram study of the inclusion of vitamin D in β-cyclodextrin and of the ternary assemblies with β-cyclodextrin, vitamin D and metal ions (e.g. Co(II), Cu(II) and Zn(II)) was carried out to determine the structure of these associations in which the molecular ratios (β-cyclodextrin:vitamin D:metal ions) were 5:1:1 or 10:1:1.
0144-8617CAPOD8Carbohydr. polym.772Qualitative study of supramolecular assemblies of β-cyclodextrin and cholecalciferol and the cobalt (II), copper (II) and zinc (II) ionsRAMALHO MERCE (Ana Lucia)NICOLINI (Jaqueline)KHAN (Mustayeen A.)BOUET (Gilles)LEQ-UFPR, Departamento de Quimica, Centro Politécnico, CP 19081CEP 81531-990 Curitiba-PrBRA1 aut.2 aut.SONAS, EA 921, Faculté de Pharmacie, 16 Boulevard Daviers49045 AngersFRA3 aut.4 aut.402-4092009ENGINIST192723540001863033603600000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0286190PACarbohydrate polymersGBRA 13C NMR in DMSO-d6 as solvent, diffuse reflectance spectra and X-ray powder diagram study of the inclusion of vitamin D in β-cyclodextrin and of the ternary assemblies with β-cyclodextrin, vitamin D and metal ions (e.g. Co(II), Cu(II) and Zn(II)) was carried out to determine the structure of these associations in which the molecular ratios (β-cyclodextrin:vitamin D:metal ions) were 5:1:1 or 10:1:1.001D09C04Cyclodextrine02Cyclodextrin02Ciclodextrina02Complexe ternaire04Ternary complex04Compuesto terciario04ColécalciférolNKFR06ColecalciferolNKFR06ColecalciferolNKFR06Ion métallique07Metal ion07Ión metálico07Cobalt II ComplexeNCNA08Cobalt II ComplexesNCNA08Cobalto II ComplejoNCNA08Cuivre II ComplexeNCNA09Copper II ComplexesNCNA09Cobre II ComplejoNCNA09Zinc II ComplexeNCNA10Zinc II ComplexesNCNA10Zinc II ComplejoNCNA10Structure supramoléculaire12Supramolecular structure12Estructura supramolecular12Etude expérimentale15Experimental study15Estudio experimental15Oside polymèreNK01Oside polymerNK01Osido polímeroNK01208PSIPSIPASCAL 09-0286190 INISTQualitative study of supramolecular assemblies of β-cyclodextrin and cholecalciferol and the cobalt (II), copper (II) and zinc (II) ionsRAMALHO MERCE (Ana Lucia); NICOLINI (Jaqueline); KHAN (Mustayeen A.); BOUET (Gilles)LEQ-UFPR, Departamento de Quimica, Centro Politécnico, CP 19081/CEP 81531-990 Curitiba-Pr/Brésil (1 aut., 2 aut.); SONAS, EA 921, Faculté de Pharmacie, 16 Boulevard Daviers/49045 Angers/France (3 aut., 4 aut.)
Publication en série; Niveau analytique
Carbohydrate polymers; ISSN 0144-8617; Coden CAPOD8; Royaume-Uni; Da. 2009; Vol. 77; No. 2; Pp. 402-409; Bibl. 1/2 p.AnglaisA 13C NMR in DMSO-d6 as solvent, diffuse reflectance spectra and X-ray powder diagram study of the inclusion of vitamin D in β-cyclodextrin and of the ternary assemblies with β-cyclodextrin, vitamin D and metal ions (e.g. Co(II), Cu(II) and Zn(II)) was carried out to determine the structure of these associations in which the molecular ratios (β-cyclodextrin:vitamin D:metal ions) were 5:1:1 or 10:1:1.001D09C04Cyclodextrine; Complexe ternaire; Colécalciférol; Ion métallique; Cobalt II Complexe; Cuivre II Complexe; Zinc II Complexe; Structure supramoléculaire; Etude expérimentaleOside polymèreCyclodextrin; Ternary complex; Colecalciferol; Metal ion; Cobalt II Complexes; Copper II Complexes; Zinc II Complexes; Supramolecular structure; Experimental studyOside polymerCiclodextrina; Compuesto terciario; Colecalciferol; Ión metálico; Cobalto II Complejo; Cobre II Complejo; Zinc II Complejo; Estructura supramolecular; Estudio experimentalINIST-19272.35400018630336036009-0286190
000C62 Re-treatment of Patients With Chronic Hepatitis C Who Do Not Respond to Peginterferon-α2b: A Randomized TrialDonald M. JensenCenter for Liver Diseases, University of Chicago HospitalsChicagoUSACentre de Recherche Biologique Bichat-Beaujon CRB3, Hôpital BeaujonClichyFRALiver and Pancreas Institute of Kansas CityKansas City, MissouriUSAUniversity of BolognaBolognaITASaint Louis University Liver Center, Saint Louis University School of MedicineSaint Louis, MissouriUSAUniversity of Rio de JaneiroRio de JaneiroBRAUniversity of PennsylvaniaPhiladelphia, PennsylvaniaUSAUniversity of PalermoPalermoITAHospital La PazMadridESPJ.W. Goethe University HospitalFrankfurtDEUISTMannheimDEURocheNutley, New JerseyUSARocheBaselCHEPatrick MarcellinBradley FreilichPietro AndreoneAdrian Di BisceglieCarlos E. Brandao-MelloK. Rajender ReddyAntonio CraxiAntonio Olveira MartinGerlinde TeuberDiethelm MessingerJames A. ThommesAndreas Tietz09-02910862009PASCAL 09-0291086 INISTPascal:09-0291086001D170003-4819Ann. intern. med.Annals of internal medicineAlpha interferonClinical trialDosage formHumanMedicinePatientPegylated formRandomizationTreatmentViral hepatitis CWHOInterféron alphaTraitementHommeMaladeHépatite virale COMSEssai cliniqueRandomisationMédecineForme pégyléeForme pharmaceutique
Background: Many patients with chronic hepatitis C have not responded to therapy with pegylated interferon plus ribavirin. Objective: To evaluate use of peginterferon-α2a plus ribavirin to re-treat nonresponders to peginterferon-α2b plus ribavirin. Design: Randomized, parallel-group trial conducted between September 2003 and February 2007. Patients and researchers were not blinded to intervention assignment. Random assignment was centralized, computer-generated, and stratified by geographic region, hepatitis C virus (HCV) genotype, and histologic diagnosis. Setting: 106 international centers. Patients: 950 nonresponders to 12 or more weeks of therapy with peginterferon-α2b plus ribavirin. Intervention: Peginterferon-α2a, 360 μg/wk, for 12 weeks, then 180 μg/wk to complete 72 weeks (group A) or 48 weeks (group B), or peginterferon-α2a, 180 μg/wk for 72 weeks (group C) or 48 weeks (group D). All patients received ribavirin, 1000 or 1200 mg/d. Measurements: Sustained virologic response (SVR), defined as undetectable (<50 IU/mL) HCV RNA levels 24 weeks after the end of treatment. Results: The SVR rates in groups A (n = 317), B (n = 156), C (n = 156), and D (n = 313) were 16%, 7%, 14%, and 9%, respectively (relative risk [RR] for group A vs. group D [the primary comparison], 1.80 [95% CI, 1.17 to 2.77]; P = 0.006). Extended treatment duration increased SVR rates (16% for 72 weeks [groups A and C] vs. 8% for 48 weeks [groups B and D]; RR, 2.00 [CI, 1.32 to 3.02]; P < 0.001). Complete viral suppression (HCV RNA level <50 IU/mL)at week 12 was achieved in 21 % of patients in groups A and B and 13% of those in groups C and D. Rates of SVR were 49% (77 of 157 patients) and 4% (32 of 719 patients) among those with and without complete viral suppression at week 12, respectively. Limitation: Nonresponders to peginterferon-α2a plus ribavirin were not evaluated. Conclusion: Re-treating nonresponders to therapy with peginterferon-α2b plus ribavirin for 72 weeks significantly increases SVR rates compared with re-treating them for 48 weeks. The overall SVR rate was low, but patients who are most likely to respond to re-treatment can be identified at week 12. Primary Funding Source: Roche.
0003-4819AIMEASAnn. intern. med.1508Re-treatment of Patients With Chronic Hepatitis C Who Do Not Respond to Peginterferon-α2b: A Randomized TrialJENSEN (Donald M.)MARCELLIN (Patrick)FREILICH (Bradley)ANDREONE (Pietro)DI BISCEGLIE (Adrian)BRANDAO-MELLO (Carlos E.)RAJENDER REDDY (K.)CRAXI (Antonio)OLVEIRA MARTIN (Antonio)TEUBER (Gerlinde)MESSINGER (Diethelm)THOMMES (James A.)TIETZ (Andreas)Center for Liver Diseases, University of Chicago HospitalsChicagoUSACentre de Recherche Biologique Bichat-Beaujon CRB3, Hôpital BeaujonClichyFRALiver and Pancreas Institute of Kansas CityKansas City, MissouriUSAUniversity of BolognaBolognaITASaint Louis University Liver Center, Saint Louis University School of MedicineSaint Louis, MissouriUSAUniversity of Rio de JaneiroRio de JaneiroBRAUniversity of PennsylvaniaPhiladelphia, PennsylvaniaUSAUniversity of PalermoPalermoITAHospital La PazMadridESPJ.W. Goethe University HospitalFrankfurtDEUISTMannheimDEURocheNutley, New JerseyUSARocheBaselCHE528-5402009ENGINIST20143540001861539400300000© 2009 INIST-CNRS. All rights reserved.29 ref.09-0291086PAAnnals of internal medicineUSABackground: Many patients with chronic hepatitis C have not responded to therapy with pegylated interferon plus ribavirin. Objective: To evaluate use of peginterferon-α2a plus ribavirin to re-treat nonresponders to peginterferon-α2b plus ribavirin. Design: Randomized, parallel-group trial conducted between September 2003 and February 2007. Patients and researchers were not blinded to intervention assignment. Random assignment was centralized, computer-generated, and stratified by geographic region, hepatitis C virus (HCV) genotype, and histologic diagnosis. Setting: 106 international centers. Patients: 950 nonresponders to 12 or more weeks of therapy with peginterferon-α2b plus ribavirin. Intervention: Peginterferon-α2a, 360 μg/wk, for 12 weeks, then 180 μg/wk to complete 72 weeks (group A) or 48 weeks (group B), or peginterferon-α2a, 180 μg/wk for 72 weeks (group C) or 48 weeks (group D). All patients received ribavirin, 1000 or 1200 mg/d. Measurements: Sustained virologic response (SVR), defined as undetectable (<50 IU/mL) HCV RNA levels 24 weeks after the end of treatment. Results: The SVR rates in groups A (n = 317), B (n = 156), C (n = 156), and D (n = 313) were 16%, 7%, 14%, and 9%, respectively (relative risk [RR] for group A vs. group D [the primary comparison], 1.80 [95% CI, 1.17 to 2.77]; P = 0.006). Extended treatment duration increased SVR rates (16% for 72 weeks [groups A and C] vs. 8% for 48 weeks [groups B and D]; RR, 2.00 [CI, 1.32 to 3.02]; P < 0.001). Complete viral suppression (HCV RNA level <50 IU/mL)at week 12 was achieved in 21 % of patients in groups A and B and 13% of those in groups C and D. Rates of SVR were 49% (77 of 157 patients) and 4% (32 of 719 patients) among those with and without complete viral suppression at week 12, respectively. Limitation: Nonresponders to peginterferon-α2a plus ribavirin were not evaluated. Conclusion: Re-treating nonresponders to therapy with peginterferon-α2b plus ribavirin for 72 weeks significantly increases SVR rates compared with re-treating them for 48 weeks. The overall SVR rate was low, but patients who are most likely to respond to re-treatment can be identified at week 12. Primary Funding Source: Roche.002B01002B05C02GInterféron alphaFR01Alpha interferonFR01Interferón alfaFR01Traitement02Treatment02Tratamiento02Homme03Human03Hombre03Malade05Patient05Enfermo05Hépatite virale C06Viral hepatitis C06Hepatítis virica C06OMS08WHO08OMS08Essai clinique09Clinical trial09Ensayo clínico09Randomisation11Randomization11Aleatorización11Médecine12Medicine12Medicina12Forme pégylée17Pegylated form17Forma pegilada17Forme pharmaceutique25Dosage form25Forma farmacéutica25ViroseViral diseaseVirosisInfectionInfectionInfecciónPathologie de l'appareil digestif37Digestive diseases37Aparato digestivo patología37Pathologie du foie38Hepatic disease38Hígado patología38215PASCAL 09-0291086 INISTRe-treatment of Patients With Chronic Hepatitis C Who Do Not Respond to Peginterferon-α2b: A Randomized TrialJENSEN (Donald M.); MARCELLIN (Patrick); FREILICH (Bradley); ANDREONE (Pietro); DI BISCEGLIE (Adrian); BRANDAO-MELLO (Carlos E.); RAJENDER REDDY (K.); CRAXI (Antonio); OLVEIRA MARTIN (Antonio); TEUBER (Gerlinde); MESSINGER (Diethelm); THOMMES (James A.); TIETZ (Andreas)Center for Liver Diseases, University of Chicago Hospitals/Chicago/Etats-Unis; Centre de Recherche Biologique Bichat-Beaujon CRB3, Hôpital Beaujon/Clichy/France; Liver and Pancreas Institute of Kansas City/Kansas City, Missouri/Etats-Unis; University of Bologna/Bologna/Italie; Saint Louis University Liver Center, Saint Louis University School of Medicine/Saint Louis, Missouri/Etats-Unis; University of Rio de Janeiro/Rio de Janeiro/Brésil; University of Pennsylvania/Philadelphia, Pennsylvania/Etats-Unis; University of Palermo/Palermo/Italie; Hospital La Paz/Madrid/Espagne; J.W. Goethe University Hospital/Frankfurt/Allemagne; IST/Mannheim/Allemagne; Roche/Nutley, New Jersey/Etats-Unis; Roche/Basel/Suisse
Publication en série; Niveau analytique
Annals of internal medicine; ISSN 0003-4819; Coden AIMEAS; Etats-Unis; Da. 2009; Vol. 150; No. 8; Pp. 528-540; Bibl. 29 ref.AnglaisBackground: Many patients with chronic hepatitis C have not responded to therapy with pegylated interferon plus ribavirin. Objective: To evaluate use of peginterferon-α2a plus ribavirin to re-treat nonresponders to peginterferon-α2b plus ribavirin. Design: Randomized, parallel-group trial conducted between September 2003 and February 2007. Patients and researchers were not blinded to intervention assignment. Random assignment was centralized, computer-generated, and stratified by geographic region, hepatitis C virus (HCV) genotype, and histologic diagnosis. Setting: 106 international centers. Patients: 950 nonresponders to 12 or more weeks of therapy with peginterferon-α2b plus ribavirin. Intervention: Peginterferon-α2a, 360 μg/wk, for 12 weeks, then 180 μg/wk to complete 72 weeks (group A) or 48 weeks (group B), or peginterferon-α2a, 180 μg/wk for 72 weeks (group C) or 48 weeks (group D). All patients received ribavirin, 1000 or 1200 mg/d. Measurements: Sustained virologic response (SVR), defined as undetectable (<50 IU/mL) HCV RNA levels 24 weeks after the end of treatment. Results: The SVR rates in groups A (n = 317), B (n = 156), C (n = 156), and D (n = 313) were 16%, 7%, 14%, and 9%, respectively (relative risk [RR] for group A vs. group D [the primary comparison], 1.80 [95% CI, 1.17 to 2.77]; P = 0.006). Extended treatment duration increased SVR rates (16% for 72 weeks [groups A and C] vs. 8% for 48 weeks [groups B and D]; RR, 2.00 [CI, 1.32 to 3.02]; P < 0.001). Complete viral suppression (HCV RNA level <50 IU/mL)at week 12 was achieved in 21 % of patients in groups A and B and 13% of those in groups C and D. Rates of SVR were 49% (77 of 157 patients) and 4% (32 of 719 patients) among those with and without complete viral suppression at week 12, respectively. Limitation: Nonresponders to peginterferon-α2a plus ribavirin were not evaluated. Conclusion: Re-treating nonresponders to therapy with peginterferon-α2b plus ribavirin for 72 weeks significantly increases SVR rates compared with re-treating them for 48 weeks. The overall SVR rate was low, but patients who are most likely to respond to re-treatment can be identified at week 12. Primary Funding Source: Roche.002B01; 002B05C02GInterféron alpha; Traitement; Homme; Malade; Hépatite virale C; OMS; Essai clinique; Randomisation; Médecine; Forme pégylée; Forme pharmaceutiqueVirose; Infection; Pathologie de l'appareil digestif; Pathologie du foieAlpha interferon; Treatment; Human; Patient; Viral hepatitis C; WHO; Clinical trial; Randomization; Medicine; Pegylated form; Dosage formViral disease; Infection; Digestive diseases; Hepatic diseaseInterferón alfa; Tratamiento; Hombre; Enfermo; Hepatítis virica C; OMS; Ensayo clínico; Aleatorización; Medicina; Forma pegilada; Forma farmacéuticaINIST-2014.35400018615394003009-0291086
000C63 Soft breaking of BRST invariance for introducing non-perturbative infrared effects in a local and renormalizable wayL. BaulieuTheoretical Division CERN1211 GenèveCHE1 aut.LPTHE, CNRS and Université Pierre et Marie Curie, 4 Place Jussieu75252 ParisFRA1 aut.S. P. SorellaUERJ-Universidade do Estado do Rio de Janeiro, Instituto de Fisica-Departamento de Fisica Teórica, Rua São Francisco Xavier 52420550-013 Marocanã, Rio de JaneiroBRA2 aut.09-02912902009PASCAL 09-0291290 INISTPascal:09-0291290001D160370-2693Phys. lett., Sect. BPhysics letters. Section BElementary particle massFeynman path integralGauge theoryInvarianceModelsPhysical parameterQuark massSymmetry breakingInvarianceThéorie jaugeIntégrale parcours FeynmanModèleMasse quarkBrisure symétrieParamètre physiqueMasse particule élémentaire
The possibility of introducing non-perturbative infrared effects leading to a modification of the long distance behavior of gauge theories through a soft breaking of the BRST invariance is investigated. The method reproduces the Gribov-Zwanziger action describing the restriction of the domain of integration in the Feynman path integral to the Gribov region and a model for the dynamical quark mass generation is presented. The soft symmetry breaking relies on the introduction of BRST doublets and massive physical parameters, which allow one to distinguish the infrared region from the ultraviolet one, within the same theory.
0370-2693PYLBAJPhys. lett., Sect. B6714-5Soft breaking of BRST invariance for introducing non-perturbative infrared effects in a local and renormalizable wayBAULIEU (L.)SORELLA (S. P.)Theoretical Division CERN1211 GenèveCHE1 aut.LPTHE, CNRS and Université Pierre et Marie Curie, 4 Place Jussieu75252 ParisFRA1 aut.UERJ-Universidade do Estado do Rio de Janeiro, Instituto de Fisica-Departamento de Fisica Teórica, Rua São Francisco Xavier 52420550-013 Marocanã, Rio de JaneiroBRA2 aut.481-4852009ENGINIST9425B3540001862632601100000© 2009 INIST-CNRS. All rights reserved.15 ref.09-0291290PAPhysics letters. Section BNLDThe possibility of introducing non-perturbative infrared effects leading to a modification of the long distance behavior of gauge theories through a soft breaking of the BRST invariance is investigated. The method reproduces the Gribov-Zwanziger action describing the restriction of the domain of integration in the Feynman path integral to the Gribov region and a model for the dynamical quark mass generation is presented. The soft symmetry breaking relies on the introduction of BRST doublets and massive physical parameters, which allow one to distinguish the infrared region from the ultraviolet one, within the same theory.001B00001B20001B10Invariance26Invariance26Théorie jauge27Gauge theory27Teoría gauge27Intégrale parcours Feynman28Feynman path integral28Modèle29Models29Modelo29Masse quark30Quark mass30Brisure symétrie31Symmetry breaking31Paramètre physique32Physical parameter32Parámetro físico32Masse particule élémentaire33Elementary particle mass33215OTOOTOPASCAL 09-0291290 INISTSoft breaking of BRST invariance for introducing non-perturbative infrared effects in a local and renormalizable wayBAULIEU (L.); SORELLA (S. P.)Theoretical Division CERN/1211 Genève/Suisse (1 aut.); LPTHE, CNRS and Université Pierre et Marie Curie, 4 Place Jussieu/75252 Paris/France (1 aut.); UERJ-Universidade do Estado do Rio de Janeiro, Instituto de Fisica-Departamento de Fisica Teórica, Rua São Francisco Xavier 524/20550-013 Marocanã, Rio de Janeiro/Brésil (2 aut.)
Publication en série; Niveau analytique
Physics letters. Section B; ISSN 0370-2693; Coden PYLBAJ; Pays-Bas; Da. 2009; Vol. 671; No. 4-5; Pp. 481-485; Bibl. 15 ref.AnglaisThe possibility of introducing non-perturbative infrared effects leading to a modification of the long distance behavior of gauge theories through a soft breaking of the BRST invariance is investigated. The method reproduces the Gribov-Zwanziger action describing the restriction of the domain of integration in the Feynman path integral to the Gribov region and a model for the dynamical quark mass generation is presented. The soft symmetry breaking relies on the introduction of BRST doublets and massive physical parameters, which allow one to distinguish the infrared region from the ultraviolet one, within the same theory.001B00; 001B20; 001B10Invariance; Théorie jauge; Intégrale parcours Feynman; Modèle; Masse quark; Brisure symétrie; Paramètre physique; Masse particule élémentaireInvariance; Gauge theory; Feynman path integral; Models; Quark mass; Symmetry breaking; Physical parameter; Elementary particle massTeoría gauge; Modelo; Parámetro físicoINIST-9425B.35400018626326011009-0291290
000C64 The cosmological constant in the brane world of string theory on S<sup>1</sup>/Z<sub>2</sub>ANZHONG WANGGCAP-CASPER, Department of Physics, Baylor UniversityWaco, TX 76798-7316USA1 aut.Department of Theoretical Physics, the State University of Rio de JaneiroRJBRA1 aut.LERMA/CNRS-FRE 2460, Université Pierre et Marie Curie, ERGA, Boîte 142, 4 Place Jussieu75005 ParisFRA1 aut.2 aut.N. O. SantosLERMA/CNRS-FRE 2460, Université Pierre et Marie Curie, ERGA, Boîte 142, 4 Place Jussieu75005 ParisFRA1 aut.2 aut.School of Mathematical Sciences, Queen Mary, University of LondonLondon E1 4NSGBR2 aut.Laboratório Nacional de Computação Científica25651-070 Petrópolis RJBRA2 aut.09-02913202009PASCAL 09-0291320 INISTPascal:09-0291320001D150370-2693Phys. lett., Sect. BPhysics letters. Section BBrane worldCosmological constantCosmologyField equationsFriedmann equationRadionString theoryConstante cosmologiqueMonde branaireThéorie cordeEquation champRadionCosmologieEquation Friedmann
Orbifold branes in string theory are investigated, and the general field equations both outside and on the branes are given explicitly for type II and heterotic string. The radion stability is studied using the Goldberger-Wise mechanism, and shown explicitly that it is stable. It is also found that the effective cosmological constant on each of the two branes can be easily lowered to its current observational value, using large extra dimensions. This is also true for type I string. Therefore, brane world of string theory provides a viable and built-in mechanism for solving the long-standing cosmological constant problem. Applying the formulas to cosmology, we obtain the generalized Friedmann equations on the branes.
0370-2693PYLBAJPhys. lett., Sect. B6692The cosmological constant in the brane world of string theory on S1/Z2ANZHONG WANGSANTOS (N. O.)GCAP-CASPER, Department of Physics, Baylor UniversityWaco, TX 76798-7316USA1 aut.Department of Theoretical Physics, the State University of Rio de JaneiroRJBRA1 aut.LERMA/CNRS-FRE 2460, Université Pierre et Marie Curie, ERGA, Boîte 142, 4 Place Jussieu75005 ParisFRA1 aut.2 aut.School of Mathematical Sciences, Queen Mary, University of LondonLondon E1 4NSGBR2 aut.Laboratório Nacional de Computação Científica25651-070 Petrópolis RJBRA2 aut.127-1322009ENGINIST9425B3540001862641700100000© 2009 INIST-CNRS. All rights reserved.27 ref.09-0291320PAPhysics letters. Section BNLDOrbifold branes in string theory are investigated, and the general field equations both outside and on the branes are given explicitly for type II and heterotic string. The radion stability is studied using the Goldberger-Wise mechanism, and shown explicitly that it is stable. It is also found that the effective cosmological constant on each of the two branes can be easily lowered to its current observational value, using large extra dimensions. This is also true for type I string. Therefore, brane world of string theory provides a viable and built-in mechanism for solving the long-standing cosmological constant problem. Applying the formulas to cosmology, we obtain the generalized Friedmann equations on the branes.001B00001B20001B10Constante cosmologique26Cosmological constant26Monde branaire27Brane world27Théorie corde28String theory28Equation champ29Field equations29Radion30Radion30Radión30Cosmologie31Cosmology31Equation Friedmann32Friedmann equation32Ecuación Friedmann32215OTOOTOPASCAL 09-0291320 INISTThe cosmological constant in the brane world of string theory on S1/Z2ANZHONG WANG; SANTOS (N. O.)GCAP-CASPER, Department of Physics, Baylor University/Waco, TX 76798-7316/Etats-Unis (1 aut.); Department of Theoretical Physics, the State University of Rio de Janeiro/RJ/Brésil (1 aut.); LERMA/CNRS-FRE 2460, Université Pierre et Marie Curie, ERGA, Boîte 142, 4 Place Jussieu/75005 Paris/France (1 aut., 2 aut.); School of Mathematical Sciences, Queen Mary, University of London/London E1 4NS/Royaume-Uni (2 aut.); Laboratório Nacional de Computação Científica/25651-070 Petrópolis RJ/Brésil (2 aut.)
Publication en série; Niveau analytique
Physics letters. Section B; ISSN 0370-2693; Coden PYLBAJ; Pays-Bas; Da. 2009; Vol. 669; No. 2; Pp. 127-132; Bibl. 27 ref.AnglaisOrbifold branes in string theory are investigated, and the general field equations both outside and on the branes are given explicitly for type II and heterotic string. The radion stability is studied using the Goldberger-Wise mechanism, and shown explicitly that it is stable. It is also found that the effective cosmological constant on each of the two branes can be easily lowered to its current observational value, using large extra dimensions. This is also true for type I string. Therefore, brane world of string theory provides a viable and built-in mechanism for solving the long-standing cosmological constant problem. Applying the formulas to cosmology, we obtain the generalized Friedmann equations on the branes.001B00; 001B20; 001B10Constante cosmologique; Monde branaire; Théorie corde; Equation champ; Radion; Cosmologie; Equation FriedmannCosmological constant; Brane world; String theory; Field equations; Radion; Cosmology; Friedmann equationRadión; Ecuación FriedmannINIST-9425B.35400018626417001009-0291320
000C65 NIR to visible up-conversion, infrared luminescence, thermoluminescence and defect centres in Y<sub>2</sub>O<sub>3</sub> : Er phosphorVijay SinghLaboratoire de Photonique Quantique et Moleculaire, UMR CNRS 8537, Institut d'Alembert, Ecole Normale Superieure de Cachan, 61 av. du President Wilson94 235 CachanFRA1 aut.3 aut.7 aut.VINEET KUMAR RAIDepartment of Applied Physics, Indian School of Mines, UniversityDhanbad -826004IND2 aut.Isabelle Ledoux-RakLaboratoire de Photonique Quantique et Moleculaire, UMR CNRS 8537, Institut d'Alembert, Ecole Normale Superieure de Cachan, 61 av. du President Wilson94 235 CachanFRA1 aut.3 aut.7 aut.S. WatanabeInstitute of Physics, University of Sao Paulo05508-090, Sao Paulo/SPBRA4 aut.5 aut.6 aut.T. K. Gundu RaoInstitute of Physics, University of Sao Paulo05508-090, Sao Paulo/SPBRA4 aut.5 aut.6 aut.J. F. D. ChubaciInstitute of Physics, University of Sao Paulo05508-090, Sao Paulo/SPBRA4 aut.5 aut.6 aut.Laurent BadieLaboratoire de Photonique Quantique et Moleculaire, UMR CNRS 8537, Institut d'Alembert, Ecole Normale Superieure de Cachan, 61 av. du President Wilson94 235 CachanFRA1 aut.3 aut.7 aut.Fabienne PelleLCMCP-Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574 CNRS, ENSCP, 11, rue Pierre et Marie Curie75231 ParisFRA8 aut.9 aut.Svetlana IvanovaLCMCP-Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574 CNRS, ENSCP, 11, rue Pierre et Marie Curie75231 ParisFRA8 aut.9 aut.09-02919712009PASCAL 09-0291971 INISTPascal:09-0291971001D140022-3727J. phys., D. Appl. phys. : (Print)Journal of physics. D, Applied physics : (Print)Charge carrier trappingCombustion synthesisDefectsEnergy-level transitionsErbium additionsF centersFrequency conversionLaser radiationNear infrared radiationPhosphorsPhotoluminescenceThermoluminescenceXRDYttrium oxideConversion fréquencePhotoluminescenceThermoluminescenceDéfautAddition erbiumSynthèse combustionDiffraction RXRayonnement IR procheRayonnement laserTransition niveau énergieCentre FPiégeage porteur chargeOxyde d'yttriumMatériau luminescentY2O3
Er3+ doped Y2O3 phosphor was prepared by the solution combustion method and characterized using powder x-ray diffraction and energy-dispersive analysis of x-ray mapping studies. Room temperature near infrared (NIR) to green up-conversion (UC) emissions in the region 520-580 nm {(2H11/2, 4S3/2) →4I15/2} and red UC emissions in the region 650-700 nm (4F9/24I15/2) of Er3+ ions have been observed upon direct excitation to the 4I11/2 level using ∼972 nm laser radiation of nanosecond pulses. The possible mechanisms for the UC processes have been discussed on the basis of the energy level scheme, the pump power dependence as well as based on the temporal evolution. The excited state absorption is observed to be the dominant mechanism for the UC process. Y2O3: Er exhibits one thermally stimulated luminescence (TSL) peak around 367 °C. Electron spin resonance (ESR) studies were carried out to study the defect centres induced in the phosphor by gamma irradiation and also to identify the centres responsible for the TSL peak. Room temperature ESR spectrum of irradiated phosphor appears to be a superposition of at least three distinct centres. One of them (centre I) with principal g-values g⁄ = 2.0415 and g⊥ = 2.0056 is identified as O-2 centre while centre II with an isotropic g-factor 2.0096 is assigned to an F+-centre (singly ionized oxygen vacancy). Centre III is also assigned to an F+-centre with a small g-factor anisotropy (g⁄ = 1.974 and g⊥ = 1.967). Additional defect centres are observed during thermal annealing experiments and one of them appearing around 330 °C grows with the annealing temperature. This centre (assigned to an F+-centre) seems to originate from an F-centre (oxygen vacancy with two electrons) and the F-centre appears to correlate with the observed TSL peak in Y2O3: Er phosphor. The trap depth for this peak has been determined to be 0.97 eV from TSL data.
0022-3727JPAPBEJ. phys., D. Appl. phys. : (Print)426NIR to visible up-conversion, infrared luminescence, thermoluminescence and defect centres in Y2O3 : Er phosphorSINGH (Vijay)VINEET KUMAR RAILEDOUX-RAK (Isabelle)WATANABE (S.)GUNDU RAO (T. K.)CHUBACI (J. F. D.)BADIE (Laurent)PELLE (Fabienne)IVANOVA (Svetlana)Laboratoire de Photonique Quantique et Moleculaire, UMR CNRS 8537, Institut d'Alembert, Ecole Normale Superieure de Cachan, 61 av. du President Wilson94 235 CachanFRA1 aut.3 aut.7 aut.Department of Applied Physics, Indian School of Mines, UniversityDhanbad -826004IND2 aut.Institute of Physics, University of Sao Paulo05508-090, Sao Paulo/SPBRA4 aut.5 aut.6 aut.LCMCP-Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574 CNRS, ENSCP, 11, rue Pierre et Marie Curie75231 ParisFRA8 aut.9 aut.065104.1-065104.92009ENGINIST58413540001870410702000000© 2009 INIST-CNRS. All rights reserved.34 ref.09-0291971PAJournal of physics. D, Applied physics : (Print)GBREr3+ doped Y2O3 phosphor was prepared by the solution combustion method and characterized using powder x-ray diffraction and energy-dispersive analysis of x-ray mapping studies. Room temperature near infrared (NIR) to green up-conversion (UC) emissions in the region 520-580 nm {(2H11/2, 4S3/2) →4I15/2} and red UC emissions in the region 650-700 nm (4F9/24I15/2) of Er3+ ions have been observed upon direct excitation to the 4I11/2 level using ∼972 nm laser radiation of nanosecond pulses. The possible mechanisms for the UC processes have been discussed on the basis of the energy level scheme, the pump power dependence as well as based on the temporal evolution. The excited state absorption is observed to be the dominant mechanism for the UC process. Y2O3: Er exhibits one thermally stimulated luminescence (TSL) peak around 367 °C. Electron spin resonance (ESR) studies were carried out to study the defect centres induced in the phosphor by gamma irradiation and also to identify the centres responsible for the TSL peak. Room temperature ESR spectrum of irradiated phosphor appears to be a superposition of at least three distinct centres. One of them (centre I) with principal g-values g⁄ = 2.0415 and g⊥ = 2.0056 is identified as O-2 centre while centre II with an isotropic g-factor 2.0096 is assigned to an F+-centre (singly ionized oxygen vacancy). Centre III is also assigned to an F+-centre with a small g-factor anisotropy (g⁄ = 1.974 and g⊥ = 1.967). Additional defect centres are observed during thermal annealing experiments and one of them appearing around 330 °C grows with the annealing temperature. This centre (assigned to an F+-centre) seems to originate from an F-centre (oxygen vacancy with two electrons) and the F-centre appears to correlate with the observed TSL peak in Y2O3: Er phosphor. The trap depth for this peak has been determined to be 0.97 eV from TSL data.001B70H60K001B70H55HConversion fréquence02Frequency conversion02Conversión frecuencia02Photoluminescence03Photoluminescence03Thermoluminescence04Thermoluminescence04Défaut05Defects05Addition erbium06Erbium additions06Synthèse combustion07Combustion synthesis07Diffraction RX08XRD08Rayonnement IR proche09Near infrared radiation09Rayonnement laser10Laser radiation10Transition niveau énergie11Energy-level transitions11Centre F12F centers12Piégeage porteur charge13Charge carrier trapping13Captura portador carga13Oxyde d'yttrium15Yttrium oxide15Ytrio óxido15Matériau luminescent17Phosphors17Y2O3INC52215PASCAL 09-0291971 INISTNIR to visible up-conversion, infrared luminescence, thermoluminescence and defect centres in Y2O3 : Er phosphorSINGH (Vijay); VINEET KUMAR RAI; LEDOUX-RAK (Isabelle); WATANABE (S.); GUNDU RAO (T. K.); CHUBACI (J. F. D.); BADIE (Laurent); PELLE (Fabienne); IVANOVA (Svetlana)Laboratoire de Photonique Quantique et Moleculaire, UMR CNRS 8537, Institut d'Alembert, Ecole Normale Superieure de Cachan, 61 av. du President Wilson/94 235 Cachan/France (1 aut., 3 aut., 7 aut.); Department of Applied Physics, Indian School of Mines, University/Dhanbad -826004/Inde (2 aut.); Institute of Physics, University of Sao Paulo/05508-090, Sao Paulo/SP/Brésil (4 aut., 5 aut., 6 aut.); LCMCP-Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574 CNRS, ENSCP, 11, rue Pierre et Marie Curie/75231 Paris/France (8 aut., 9 aut.)
Publication en série; Niveau analytique
Journal of physics. D, Applied physics : (Print); ISSN 0022-3727; Coden JPAPBE; Royaume-Uni; Da. 2009; Vol. 42; No. 6; 065104.1-065104.9; Bibl. 34 ref.AnglaisEr3+ doped Y2O3 phosphor was prepared by the solution combustion method and characterized using powder x-ray diffraction and energy-dispersive analysis of x-ray mapping studies. Room temperature near infrared (NIR) to green up-conversion (UC) emissions in the region 520-580 nm {(2H11/2, 4S3/2) →4I15/2} and red UC emissions in the region 650-700 nm (4F9/24I15/2) of Er3+ ions have been observed upon direct excitation to the 4I11/2 level using ∼972 nm laser radiation of nanosecond pulses. The possible mechanisms for the UC processes have been discussed on the basis of the energy level scheme, the pump power dependence as well as based on the temporal evolution. The excited state absorption is observed to be the dominant mechanism for the UC process. Y2O3: Er exhibits one thermally stimulated luminescence (TSL) peak around 367 °C. Electron spin resonance (ESR) studies were carried out to study the defect centres induced in the phosphor by gamma irradiation and also to identify the centres responsible for the TSL peak. Room temperature ESR spectrum of irradiated phosphor appears to be a superposition of at least three distinct centres. One of them (centre I) with principal g-values g⁄ = 2.0415 and g⊥ = 2.0056 is identified as O-2 centre while centre II with an isotropic g-factor 2.0096 is assigned to an F+-centre (singly ionized oxygen vacancy). Centre III is also assigned to an F+-centre with a small g-factor anisotropy (g⁄ = 1.974 and g⊥ = 1.967). Additional defect centres are observed during thermal annealing experiments and one of them appearing around 330 °C grows with the annealing temperature. This centre (assigned to an F+-centre) seems to originate from an F-centre (oxygen vacancy with two electrons) and the F-centre appears to correlate with the observed TSL peak in Y2O3: Er phosphor. The trap depth for this peak has been determined to be 0.97 eV from TSL data.001B70H60K; 001B70H55HConversion fréquence; Photoluminescence; Thermoluminescence; Défaut; Addition erbium; Synthèse combustion; Diffraction RX; Rayonnement IR proche; Rayonnement laser; Transition niveau énergie; Centre F; Piégeage porteur charge; Oxyde d'yttrium; Matériau luminescent; Y2O3Frequency conversion; Photoluminescence; Thermoluminescence; Defects; Erbium additions; Combustion synthesis; XRD; Near infrared radiation; Laser radiation; Energy-level transitions; F centers; Charge carrier trapping; Yttrium oxide; PhosphorsConversión frecuencia; Captura portador carga; Ytrio óxidoINIST-5841.35400018704107020009-0291971
000C66 Temporal pessimism and spatial optimism in environmental assessments : An 18-nation studyRobert GiffordUniversity of VictoriaCAN1 aut.2 aut.3 aut.Leila ScannellUniversity of VictoriaCAN1 aut.2 aut.3 aut.Christine KormosUniversity of VictoriaCAN1 aut.2 aut.3 aut.Lidia SmolovaAnders BielUniversity of GothenburgSWE5 aut.26 aut.Stefan BoncuUniversity of IaşiROU6 aut.Victor CorralUniversidad de SonoraMEX7 aut.Hartmut G NtherfUniversidade de BrasíliaBRA8 aut.Kazunori HanyuNihon UniversityJPN9 aut.Donald HineUniversity of New EnglandAUS10 aut.Florian G. KaiserEindhoven University of TechnologyNLD11 aut.Kalevi KorpelaUniversity of TampereFIN12 aut.Luisa Marie LimaInstituto Superior de Ciências do Trabalho e da Empresa (ISCTE)INC13 aut.Angela G. MertigMiddle Tennessee State UniversityUSA14 aut.Ricardo Garcia MiraUniversidade da CoruñaESP15 aut.Gabriel MaserParis Descartes UniversityFRA16 aut.22 aut.Paola PassafaroSapienza University of RomeITA17 aut.José Q. PinheiroUniversidade Federal do Rio Grande do NorteBRA18 aut.Sunil SainiGuru Jambheshwar University of Science and TechnologyIND19 aut.Toshihiko SakoWaseda UniversityJPN20 aut.Elena SautkinaHigher Institute of Business and Labour SciencesPRT21 aut.Yannick SavinaParis Descartes UniversityFRA16 aut.22 aut.Peter SchmuckBerlin University of TechnologyDEU23 aut.25 aut.Wesley SchultzCalifornia State UniversityUSA24 aut.Karin SobeckBerlin University of TechnologyDEU23 aut.25 aut.Eva-Lotta SundbladUniversity of GothenburgSWE5 aut.26 aut.David UzzellUniversity of SurreyGBR27 aut.09-02929982009PASCAL 09-0292998 INISTPascal:09-0292998001D13FRANCIS 09-0292998 INIST0272-4944J. environ. psychol.Journal of environmental psychologyComparative studyCrosscultural studyEnvironmentEnvironmental qualityHumanOptimism pessimismOptimisme pessimismeEtude transculturelleEtude comparativeEnvironnementQualité environnementaleHomme
The personal assessments of the current and expected future state of the environment by 3232 community respondents in 18 nations were investigated at the local, national, and global spatial levels. These assessments were compared to a ranking of each country's environmental quality by an expert panel. Temporal pessimism ("things will get worse") was found in the assessments at all three spatial levels. Spatial optimism bias ("things are better here than there") was found in the assessments of current environmental conditions in 15 of 18 countries, but not in the assessments of the future. All countries except one exhibited temporal pessimism, but significant differences between them were common. Evaluations of current environmental conditions also differed by country. Citizens' assessments of current conditions, and the degree of comparative optimism, were strongly correlated with the expert panel's assessments of national environmental quality. Aside from the value of understanding global trends in environmental assessments, the results have important implications for environmental policy and risk management strategies.
0272-4944J. environ. psychol.291Temporal pessimism and spatial optimism in environmental assessments : An 18-nation studyGIFFORD (Robert)SCANNELL (Leila)KORMOS (Christine)SMOLOVA (Lidia)BIEL (Anders)BONCU (Stefan)CORRAL (Victor)GÜNTHERF (Hartmut)HANYU (Kazunori)HINE (Donald)KAISER (Florian G.)KORPELA (Kalevi)LIMA (Luisa Marie)MERTIG (Angela G.)GARCIA MIRA (Ricardo)MASER (Gabriel)PASSAFARO (Paola)PINHEIRO (José Q.)SAINI (Sunil)SAKO (Toshihiko)SAUTKINA (Elena)SAVINA (Yannick)SCHMUCK (Peter)SCHULTZ (Wesley)SOBECK (Karin)SUNDBLAD (Eva-Lotta)UZZELL (David)University of VictoriaCAN1 aut.2 aut.3 aut.University of GothenburgSWE5 aut.26 aut.University of IaşiROU6 aut.Universidad de SonoraMEX7 aut.Universidade de BrasíliaBRA8 aut.Nihon UniversityJPN9 aut.University of New EnglandAUS10 aut.Eindhoven University of TechnologyNLD11 aut.University of TampereFIN12 aut.Instituto Superior de Ciências do Trabalho e da Empresa (ISCTE)INC13 aut.Middle Tennessee State UniversityUSA14 aut.Universidade da CoruñaESP15 aut.Paris Descartes UniversityFRA16 aut.22 aut.Sapienza University of RomeITA17 aut.Universidade Federal do Rio Grande do NorteBRA18 aut.Guru Jambheshwar University of Science and TechnologyIND19 aut.Waseda UniversityJPN20 aut.Higher Institute of Business and Labour SciencesPRT21 aut.Berlin University of TechnologyDEU23 aut.25 aut.California State UniversityUSA24 aut.University of SurreyGBR27 aut.1-122009ENGINIST197033540001868179200100000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0292998PAJournal of environmental psychologyNLDThe personal assessments of the current and expected future state of the environment by 3232 community respondents in 18 nations were investigated at the local, national, and global spatial levels. These assessments were compared to a ranking of each country's environmental quality by an expert panel. Temporal pessimism ("things will get worse") was found in the assessments at all three spatial levels. Spatial optimism bias ("things are better here than there") was found in the assessments of current environmental conditions in 15 of 18 countries, but not in the assessments of the future. All countries except one exhibited temporal pessimism, but significant differences between them were common. Evaluations of current environmental conditions also differed by country. Citizens' assessments of current conditions, and the degree of comparative optimism, were strongly correlated with the expert panel's assessments of national environmental quality. Aside from the value of understanding global trends in environmental assessments, the results have important implications for environmental policy and risk management strategies.002A26Q01Optimisme pessimisme01Optimism pessimism01Optimismo pesimismo01Etude transculturelle03Crosscultural study03Estudio transcultural03Etude comparative04Comparative study04Estudio comparativo04Environnement05Environment05Medio ambiente05Qualité environnementale06Environmental quality06Calidad ecológica06Homme18Human18Hombre18Environnement social37Social environment37Contexto social37215PASCAL 09-0292998 INISTTemporal pessimism and spatial optimism in environmental assessments : An 18-nation studyGIFFORD (Robert); SCANNELL (Leila); KORMOS (Christine); SMOLOVA (Lidia); BIEL (Anders); BONCU (Stefan); CORRAL (Victor); GÜNTHERF (Hartmut); HANYU (Kazunori); HINE (Donald); KAISER (Florian G.); KORPELA (Kalevi); LIMA (Luisa Marie); MERTIG (Angela G.); GARCIA MIRA (Ricardo); MASER (Gabriel); PASSAFARO (Paola); PINHEIRO (José Q.); SAINI (Sunil); SAKO (Toshihiko); SAUTKINA (Elena); SAVINA (Yannick); SCHMUCK (Peter); SCHULTZ (Wesley); SOBECK (Karin); SUNDBLAD (Eva-Lotta); UZZELL (David)University of Victoria/Canada (1 aut., 2 aut., 3 aut.); University of Gothenburg/Suède (5 aut., 26 aut.); University of Iaşi/Roumanie (6 aut.); Universidad de Sonora/Mexique (7 aut.); Universidade de Brasília/Brésil (8 aut.); Nihon University/Japon (9 aut.); University of New England/Australie (10 aut.); Eindhoven University of Technology/Pays-Bas (11 aut.); University of Tampere/Finlande (12 aut.); Instituto Superior de Ciências do Trabalho e da Empresa (ISCTE)/Inconnu (13 aut.); Middle Tennessee State University/Etats-Unis (14 aut.); Universidade da Coruña/Espagne (15 aut.); Paris Descartes University/France (16 aut., 22 aut.); Sapienza University of Rome/Italie (17 aut.); Universidade Federal do Rio Grande do Norte/Brésil (18 aut.); Guru Jambheshwar University of Science and Technology/Inde (19 aut.); Waseda University/Japon (20 aut.); Higher Institute of Business and Labour Sciences/Portugal (21 aut.); Berlin University of Technology/Allemagne (23 aut., 25 aut.); California State University/Etats-Unis (24 aut.); University of Surrey/Royaume-Uni (27 aut.)
Publication en série; Niveau analytique
Journal of environmental psychology; ISSN 0272-4944; Pays-Bas; Da. 2009; Vol. 29; No. 1; Pp. 1-12; Bibl. 1/2 p.AnglaisThe personal assessments of the current and expected future state of the environment by 3232 community respondents in 18 nations were investigated at the local, national, and global spatial levels. These assessments were compared to a ranking of each country's environmental quality by an expert panel. Temporal pessimism ("things will get worse") was found in the assessments at all three spatial levels. Spatial optimism bias ("things are better here than there") was found in the assessments of current environmental conditions in 15 of 18 countries, but not in the assessments of the future. All countries except one exhibited temporal pessimism, but significant differences between them were common. Evaluations of current environmental conditions also differed by country. Citizens' assessments of current conditions, and the degree of comparative optimism, were strongly correlated with the expert panel's assessments of national environmental quality. Aside from the value of understanding global trends in environmental assessments, the results have important implications for environmental policy and risk management strategies.002A26Q01Optimisme pessimisme; Etude transculturelle; Etude comparative; Environnement; Qualité environnementale; HommeEnvironnement socialOptimism pessimism; Crosscultural study; Comparative study; Environment; Environmental quality; HumanSocial environmentOptimismo pesimismo; Estudio transcultural; Estudio comparativo; Medio ambiente; Calidad ecológica; HombreINIST-19703.35400018681792001009-0292998
000C67 Microstructure and properties of the compound layer obtained by pulsed plasma nitriding in steel gearsE. A. OchoaInstituo de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp13083-970, Campinas, São PauloBRA1 aut.2 aut.7 aut.D. WisniveskyInstituo de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp13083-970, Campinas, São PauloBRA1 aut.2 aut.7 aut.T. MineaLaboratoire de Physique des Gaz et Plasmas (LPGP), UMR 8578, CNRS-Université Paris Sud91405 OrsayFRA3 aut.4 aut.7 aut.M. GanciuLaboratoire de Physique des Gaz et Plasmas (LPGP), UMR 8578, CNRS-Université Paris Sud91405 OrsayFRA3 aut.4 aut.7 aut.C. TauziedeHORIBA Jobin Yvon SA.S., 16-18 rue du canal91165 LongjumeauFRA5 aut.6 aut.P. ChaponHORIBA Jobin Yvon SA.S., 16-18 rue du canal91165 LongjumeauFRA5 aut.6 aut.F. AlvarezInstituo de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp13083-970, Campinas, São PauloBRA1 aut.2 aut.7 aut.Laboratoire de Physique des Gaz et Plasmas (LPGP), UMR 8578, CNRS-Université Paris Sud91405 OrsayFRA3 aut.4 aut.7 aut.09-02955572009PASCAL 09-0295557 INISTPascal:09-0295557001D120257-8972Surf. coat. technol.Surface & coatings technologyGearsHardnessMicrostructureNitridationNitridesPlasmaSurface treatmentsThermochemical treatmentMicrostructurePlasmaTraitement thermochimiqueNitrurationEngrenageNitrureDuretéTraitement surface
The crystalline structure profile of the compound layer obtained by pulsed plasma nitriding in steel gears is reported. The nitrogen depth profile obtained by Radio Frequency Glow Discharge Optical Emission Spectroscopy is correlated with both the nano-hardness and the crystalline ε-Fe3N/γ'-Fe4N phases identified in the nitrided layer by X-ray diffraction. These results show the importance to control the nitriding parameters to avoid abrupt hardness changes along the case that can jeopardize the gear performance.
0257-8972SCTEEJSurf. coat. technol.20310-11Microstructure and properties of the compound layer obtained by pulsed plasma nitriding in steel gearsOCHOA (E. A.)WISNIVESKY (D.)MINEA (T.)GANCIU (M.)TAUZIEDE (C.)CHAPON (P.)ALVAREZ (F.)Instituo de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp13083-970, Campinas, São PauloBRA1 aut.2 aut.7 aut.Laboratoire de Physique des Gaz et Plasmas (LPGP), UMR 8578, CNRS-Université Paris Sud91405 OrsayFRA3 aut.4 aut.7 aut.HORIBA Jobin Yvon SA.S., 16-18 rue du canal91165 LongjumeauFRA5 aut.6 aut.1457-14612009ENGINIST159873540001869911702500000© 2009 INIST-CNRS. All rights reserved.29 ref.09-0295557PASurface & coatings technologyCHEThe crystalline structure profile of the compound layer obtained by pulsed plasma nitriding in steel gears is reported. The nitrogen depth profile obtained by Radio Frequency Glow Discharge Optical Emission Spectroscopy is correlated with both the nano-hardness and the crystalline ε-Fe3N/γ'-Fe4N phases identified in the nitrided layer by X-ray diffraction. These results show the importance to control the nitriding parameters to avoid abrupt hardness changes along the case that can jeopardize the gear performance.001B80A65001D11C02E240Microstructure55Microstructure55Plasma56Plasma56Traitement thermochimique57Thermochemical treatment57Thermochemische Behandlung57Tratamiento termoquímico57Nitruration58Nitridation58Engrenage59Gears59NitrureNA60NitridesNA60Dureté61Hardness61Traitement surface62Surface treatments62215OTOOTOPASCAL 09-0295557 INISTMicrostructure and properties of the compound layer obtained by pulsed plasma nitriding in steel gearsOCHOA (E. A.); WISNIVESKY (D.); MINEA (T.); GANCIU (M.); TAUZIEDE (C.); CHAPON (P.); ALVAREZ (F.)Instituo de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp/13083-970, Campinas, São Paulo/Brésil (1 aut., 2 aut., 7 aut.); Laboratoire de Physique des Gaz et Plasmas (LPGP), UMR 8578, CNRS-Université Paris Sud/91405 Orsay/France (3 aut., 4 aut., 7 aut.); HORIBA Jobin Yvon SA.S., 16-18 rue du canal/91165 Longjumeau/France (5 aut., 6 aut.)
Publication en série; Niveau analytique
Surface & coatings technology; ISSN 0257-8972; Coden SCTEEJ; Suisse; Da. 2009; Vol. 203; No. 10-11; Pp. 1457-1461; Bibl. 29 ref.AnglaisThe crystalline structure profile of the compound layer obtained by pulsed plasma nitriding in steel gears is reported. The nitrogen depth profile obtained by Radio Frequency Glow Discharge Optical Emission Spectroscopy is correlated with both the nano-hardness and the crystalline ε-Fe3N/γ'-Fe4N phases identified in the nitrided layer by X-ray diffraction. These results show the importance to control the nitriding parameters to avoid abrupt hardness changes along the case that can jeopardize the gear performance.001B80A65; 001D11C02E; 240Microstructure; Plasma; Traitement thermochimique; Nitruration; Engrenage; Nitrure; Dureté; Traitement surfaceMicrostructure; Plasma; Thermochemical treatment; Nitridation; Gears; Nitrides; Hardness; Surface treatmentsThermochemische BehandlungTratamiento termoquímicoINIST-15987.35400018699117025009-0295557
000C68 Planetary nebulae in the direction of the Galactic bulge: on nebulae with emission-line central starsS. K. GornyCopernicus Astronomical Center, Rabiańska 887-100 ToruńPOL1 aut.C. ChiappiniGeneva Observatory, Geneva University, 51 Chemin des Maillettes1290 SauvernyCHE2 aut.Osservatorio Astronomico di Trieste, OAT-INAF, via Tiepolo 11TriesteITA2 aut.G. StasinskaLUTH, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA3 aut.F. CuisinierGEMAC, Observatório do Valongo/UFRJ, Ladeira do Pedro Antônio 4320.080-090 Rio de JaneiroBRA4 aut.09-02976072009PASCAL 09-0297607 INISTPascal:09-0297607001D110004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AbundanceCentral starsChemical compositionEmission line starsGalactic bulgeGalactic nebulaeGalaxiesGalaxy bulgeMass lossMilky WayPlanetary nebulaePlasmaWolf-Rayet starsNébuleuse planétaireNébuleuse galactiqueBulbe galactiqueEtoile raie émissionPlasmaAbondanceEtoile centralePerte masseComposition chimiqueBulbe galaxiesGalaxiesEtoile type Wolf RayetVoie lactée
Aims. We present a homogeneous set of spectroscopic measurements secured with 4-m class telescopes for a sample of 90 planetary nebulae (PNe) located in the direction of the Galactic bulge. Methods. We derive their plasma parameters and chemical abundances. For half of the objects this is done for the first time. We discuss the accuracy of these data and compare it with other recently published samples. We analyze various properties of PNe with emission-line central stars in the Galactic bulge. Results. Investigating the spectra we found that 7 of those PNe are ionized by Wolf-Rayet ([WR]) type stars of the very late (VL) spectral class [WC 11] and 8 by weak emission-line (WEL) stars. From the analysis we conclude that the PN central stars of WEL, VL and remaining [WR] types form three, evolutionary unconnected forms of enhanced mass-loss among central stars of PNe. [WR] PNe seem to be intrinsically brighter than other PNe. Overall, we find no statistically significant evidence that the chemical composition of PNe with emission-line central stars is different from that of the remaining Galactic bulge PNe.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)5003Planetary nebulae in the direction of the Galactic bulge: on nebulae with emission-line central starsGORNY (S. K.)CHIAPPINI (C.)STASINSKA (G.)CUISINIER (F.)Copernicus Astronomical Center, Rabiańska 887-100 ToruńPOL1 aut.Geneva Observatory, Geneva University, 51 Chemin des Maillettes1290 SauvernyCHE2 aut.Osservatorio Astronomico di Trieste, OAT-INAF, via Tiepolo 11TriesteITA2 aut.LUTH, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen92190 MeudonFRA3 aut.GEMAC, Observatório do Valongo/UFRJ, Ladeira do Pedro Antônio 4320.080-090 Rio de JaneiroBRA4 aut.1089-11082009ENGINIST141763540001871828901500000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0297607PAAstronomy and astrophysics : (Berlin. Print)FRAAims. We present a homogeneous set of spectroscopic measurements secured with 4-m class telescopes for a sample of 90 planetary nebulae (PNe) located in the direction of the Galactic bulge. Methods. We derive their plasma parameters and chemical abundances. For half of the objects this is done for the first time. We discuss the accuracy of these data and compare it with other recently published samples. We analyze various properties of PNe with emission-line central stars in the Galactic bulge. Results. Investigating the spectra we found that 7 of those PNe are ionized by Wolf-Rayet ([WR]) type stars of the very late (VL) spectral class [WC 11] and 8 by weak emission-line (WEL) stars. From the analysis we conclude that the PN central stars of WEL, VL and remaining [WR] types form three, evolutionary unconnected forms of enhanced mass-loss among central stars of PNe. [WR] PNe seem to be intrinsically brighter than other PNe. Overall, we find no statistically significant evidence that the chemical composition of PNe with emission-line central stars is different from that of the remaining Galactic bulge PNe.001E03Nébuleuse planétaire26Planetary nebulae26Nébuleuse galactique27Galactic nebulae27Bulbe galactique28Galactic bulge28Bulbo galáctico28Etoile raie émission29Emission line stars29Plasma30Plasma30Abondance31Abundance31Etoile centrale32Central stars32Perte masse33Mass loss33Composition chimique34Chemical composition34Bulbe galaxies35Galaxy bulge35Bulbo galaxias35Galaxies36Galaxies36Etoile type Wolf Rayet37Wolf-Rayet stars37Voie lactée38Milky Way38215OTOOTOPASCAL 09-0297607 INISTPlanetary nebulae in the direction of the Galactic bulge: on nebulae with emission-line central starsGORNY (S. K.); CHIAPPINI (C.); STASINSKA (G.); CUISINIER (F.)Copernicus Astronomical Center, Rabiańska 8/87-100 Toruń/Pologne (1 aut.); Geneva Observatory, Geneva University, 51 Chemin des Maillettes/1290 Sauverny/Suisse (2 aut.); Osservatorio Astronomico di Trieste, OAT-INAF, via Tiepolo 11/Trieste/Italie (2 aut.); LUTH, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen/92190 Meudon/France (3 aut.); GEMAC, Observatório do Valongo/UFRJ, Ladeira do Pedro Antônio 43/20.080-090 Rio de Janeiro/Brésil (4 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 500; No. 3; Pp. 1089-1108; Bibl. 1/2 p.AnglaisAims. We present a homogeneous set of spectroscopic measurements secured with 4-m class telescopes for a sample of 90 planetary nebulae (PNe) located in the direction of the Galactic bulge. Methods. We derive their plasma parameters and chemical abundances. For half of the objects this is done for the first time. We discuss the accuracy of these data and compare it with other recently published samples. We analyze various properties of PNe with emission-line central stars in the Galactic bulge. Results. Investigating the spectra we found that 7 of those PNe are ionized by Wolf-Rayet ([WR]) type stars of the very late (VL) spectral class [WC 11] and 8 by weak emission-line (WEL) stars. From the analysis we conclude that the PN central stars of WEL, VL and remaining [WR] types form three, evolutionary unconnected forms of enhanced mass-loss among central stars of PNe. [WR] PNe seem to be intrinsically brighter than other PNe. Overall, we find no statistically significant evidence that the chemical composition of PNe with emission-line central stars is different from that of the remaining Galactic bulge PNe.001E03Nébuleuse planétaire; Nébuleuse galactique; Bulbe galactique; Etoile raie émission; Plasma; Abondance; Etoile centrale; Perte masse; Composition chimique; Bulbe galaxies; Galaxies; Etoile type Wolf Rayet; Voie lactéePlanetary nebulae; Galactic nebulae; Galactic bulge; Emission line stars; Plasma; Abundance; Central stars; Mass loss; Chemical composition; Galaxy bulge; Galaxies; Wolf-Rayet stars; Milky WayBulbo galáctico; Bulbo galaxiasINIST-14176.35400018718289015009-0297607
000C69 Boom-and-Bust Development Patterns Across the Amazon Deforestation FrontierAna S. L. RodriguesConservation Sdence Group, Department of Zoology, University of CambridgeCambridge CB2 3E]GBR1 aut.6 aut.IN+, Center for Innovation, Technology and Policy Research, Environment and Energy Section, Mechanical Engineering Department, Instituto Superior TécnicoPRT1 aut.Centre d'Ecologie Fonctionnelle et Evolutive, CNRS UMR5175, 1919 Route de Mende34293 MontpellierFRA1 aut.Robert M. EwersDivision of Biology, Imperial College London, Silwood Park CampusAscot SL5 7PYGBR2 aut.Luke ParrySchool of Environmental Sciences, University of East AngliaNorwich NR4 7T]GBR3 aut.Carlos Jr SouzaIMAZON-Amazon Institute of People and the EnvironmentBelém, PABRA4 aut.5 aut.Adalberto VerissimoIMAZON-Amazon Institute of People and the EnvironmentBelém, PABRA4 aut.5 aut.Andrew BalmfordConservation Sdence Group, Department of Zoology, University of CambridgeCambridge CB2 3E]GBR1 aut.6 aut.09-02977772009PASCAL 09-0297777 INISTPascal:09-0297777001D100036-8075Science : (Wash. D.C.)Science : (Washington, D.C.)Amazon BasinBrazilDeforestationEconomic developmentEnvironmental monitoringEnvironmental protectionEvolutionForest edgeLife expectancyLiteracyStandard of livingSustainable developmentTropical rain forestDéboisementForêt ombrophile tropicaleLisière forêtEvolutionDéveloppement économiqueAlphabétismeNiveau vieEspérance de vieSurveillance écologiqueDéveloppement durableProtection environnementBrésilBassin Amazone
The Brazilian Amazon is globally important for biodiversity, climate, and geochemical cycles, but is also among the least developed regions in Brazil. Economic development is often pursued through forest conversion for cattle ranching and agriculture, mediated by logging. However, on the basis of an assessment of 286 municipalities in different stages of deforestation, we found a boom-and-bust pattern in levels of human development across the deforestation frontier. Relative standards of living, literacy, and life expectancy increase as deforestation begins but then decline as the frontier evolves, so that pre- and postfrontier levels of human development are similarly low. New financial incentives and policies are creating opportunities for a more sustained development trajectory that is not based on the depletion of nature and ecosystem services.
0036-8075SCIEASScience : (Wash. D.C.)3245933Boom-and-Bust Development Patterns Across the Amazon Deforestation FrontierRODRIGUES (Ana S. L.)EWERS (Robert M.)PARRY (Luke)SOUZA (Carlos JR)VERISSIMO (Adalberto)BALMFORD (Andrew)Conservation Sdence Group, Department of Zoology, University of CambridgeCambridge CB2 3E]GBR1 aut.6 aut.IN+, Center for Innovation, Technology and Policy Research, Environment and Energy Section, Mechanical Engineering Department, Instituto Superior TécnicoPRT1 aut.Centre d'Ecologie Fonctionnelle et Evolutive, CNRS UMR5175, 1919 Route de Mende34293 MontpellierFRA1 aut.Division of Biology, Imperial College London, Silwood Park CampusAscot SL5 7PYGBR2 aut.School of Environmental Sciences, University of East AngliaNorwich NR4 7T]GBR3 aut.IMAZON-Amazon Institute of People and the EnvironmentBelém, PABRA4 aut.5 aut.1435-14372009ENGINIST60403540001871184702100000© 2009 INIST-CNRS. All rights reserved.36 ref.09-0297777PCAScience : (Washington, D.C.)USAThe Brazilian Amazon is globally important for biodiversity, climate, and geochemical cycles, but is also among the least developed regions in Brazil. Economic development is often pursued through forest conversion for cattle ranching and agriculture, mediated by logging. However, on the basis of an assessment of 286 municipalities in different stages of deforestation, we found a boom-and-bust pattern in levels of human development across the deforestation frontier. Relative standards of living, literacy, and life expectancy increase as deforestation begins but then decline as the frontier evolves, so that pre- and postfrontier levels of human development are similarly low. New financial incentives and policies are creating opportunities for a more sustained development trajectory that is not based on the depletion of nature and ecosystem services.002A14D02ADéboisement01Deforestation01Deforestación01Forêt ombrophile tropicale02Tropical rain forest02Bosque tropical húmedo02Lisière forêt03Forest edge03Linde bosque03Evolution04Evolution04Evolución04Développement économique05Economic development05Desarrollo económico05Alphabétisme06Literacy06Alfabetización06Niveau vie07Standard of living07Espérance de vie08Life expectancy08Esperanza de vida08Surveillance écologique09Environmental monitoring09Vigilancia ecológica09Développement durable10Sustainable development10Desarrollo sostenible10Protection environnement11Environmental protection11Protección medio ambiente11BrésilNG19BrazilNG19BrasilNG19Bassin AmazoneNG20Amazon BasinNG20Cuenca AmazonasNG20Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNG215PASCAL 09-0297777 INISTBoom-and-Bust Development Patterns Across the Amazon Deforestation FrontierRODRIGUES (Ana S. L.); EWERS (Robert M.); PARRY (Luke); SOUZA (Carlos JR); VERISSIMO (Adalberto); BALMFORD (Andrew)Conservation Sdence Group, Department of Zoology, University of Cambridge/Cambridge CB2 3E]/Royaume-Uni (1 aut., 6 aut.); IN+, Center for Innovation, Technology and Policy Research, Environment and Energy Section, Mechanical Engineering Department, Instituto Superior Técnico/Portugal (1 aut.); Centre d'Ecologie Fonctionnelle et Evolutive, CNRS UMR5175, 1919 Route de Mende/34293 Montpellier/France (1 aut.); Division of Biology, Imperial College London, Silwood Park Campus/Ascot SL5 7PY/Royaume-Uni (2 aut.); School of Environmental Sciences, University of East Anglia/Norwich NR4 7T]/Royaume-Uni (3 aut.); IMAZON-Amazon Institute of People and the Environment/Belém, PA/Brésil (4 aut., 5 aut.)
Publication en série; Compte-rendu; Niveau analytique
Science : (Washington, D.C.); ISSN 0036-8075; Coden SCIEAS; Etats-Unis; Da. 2009; Vol. 324; No. 5933; Pp. 1435-1437; Bibl. 36 ref.AnglaisThe Brazilian Amazon is globally important for biodiversity, climate, and geochemical cycles, but is also among the least developed regions in Brazil. Economic development is often pursued through forest conversion for cattle ranching and agriculture, mediated by logging. However, on the basis of an assessment of 286 municipalities in different stages of deforestation, we found a boom-and-bust pattern in levels of human development across the deforestation frontier. Relative standards of living, literacy, and life expectancy increase as deforestation begins but then decline as the frontier evolves, so that pre- and postfrontier levels of human development are similarly low. New financial incentives and policies are creating opportunities for a more sustained development trajectory that is not based on the depletion of nature and ecosystem services.002A14D02ADéboisement; Forêt ombrophile tropicale; Lisière forêt; Evolution; Développement économique; Alphabétisme; Niveau vie; Espérance de vie; Surveillance écologique; Développement durable; Protection environnement; Brésil; Bassin AmazoneAmérique du Sud; AmériqueDeforestation; Tropical rain forest; Forest edge; Evolution; Economic development; Literacy; Standard of living; Life expectancy; Environmental monitoring; Sustainable development; Environmental protection; Brazil; Amazon BasinSouth America; AmericaDeforestación; Bosque tropical húmedo; Linde bosque; Evolución; Desarrollo económico; Alfabetización; Esperanza de vida; Vigilancia ecológica; Desarrollo sostenible; Protección medio ambiente; Brasil; Cuenca AmazonasINIST-6040.35400018711847021009-0297777
000C70 Robust Multi-Objective TEAM 22 Problem: A Case Study of Uncertainties in Design OptimizationGustavo L. SoaresElectrical Engineering Department, Federal University of Minas GeraisBelo Horizonte, CEP-31270-010BRA1 aut.3 aut.5 aut.Ecole Nationale Supérieure D'Ingénieurs des Études et Techniques d'ArmementBrest, 29806FRA1 aut.4 aut.Ricardo L. S. AdrianoInstitut National de Recherche sur les Transports et leur SécuritéVilleneuve d'Ascq, 59650FRA2 aut.Carlos A. MaiaElectrical Engineering Department, Federal University of Minas GeraisBelo Horizonte, CEP-31270-010BRA1 aut.3 aut.5 aut.Luc JaulinEcole Nationale Supérieure D'Ingénieurs des Études et Techniques d'ArmementBrest, 29806FRA1 aut.4 aut.Joao A. VasconcelosElectrical Engineering Department, Federal University of Minas GeraisBelo Horizonte, CEP-31270-010BRA1 aut.3 aut.5 aut.09-02982882009PASCAL 09-0298288 INISTPascal:09-0298288001D090018-9464IEEE trans. magn.IEEE transactions on magneticsCase studyDesignMagnetic propertiesEtude casConceptionPropriété magnétique
This paper describes a robust version to the TEAM 22 benchmark optimization problem and presents the methodology WCSA (worst case scenario approximation) to solve this problem and other similar cases. The robust multi-objective TEAM 22 model was built from its classical configuration by assuming the imprecisions in the design space. General and specific robust optimization formulas were developed to elaborate WCSA approach. WCSA adds an uncertainty parameter in the objective and constraint functions to perform the role of the system's imprecisions. A multi-objective genetic algorithm approach was chosen to deal with the robust formulation and to find out the set of robust minimizers that matches with the problem requirements. The behavior of the robust Pareto front is also examined.
0018-9464IEMGAQIEEE trans. magn.453Robust Multi-Objective TEAM 22 Problem: A Case Study of Uncertainties in Design OptimizationSelected Papers from the 13th Biennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 2008SOARES (Gustavo L.)ADRIANO (Ricardo L. S.)MAIA (Carlos A.)JAULIN (Luc)VASCONCELOS (Joao A.)KLADAS (Antonios G.)ed.TSIBOUKIS (Theodoros D.)ed.Electrical Engineering Department, Federal University of Minas GeraisBelo Horizonte, CEP-31270-010BRA1 aut.3 aut.5 aut.Ecole Nationale Supérieure D'Ingénieurs des Études et Techniques d'ArmementBrest, 29806FRA1 aut.4 aut.Institut National de Recherche sur les Transports et leur SécuritéVilleneuve d'Ascq, 59650FRA2 aut.Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of AthensAthensGRC1 aut.Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of ThessalonikiThessalonikiGRC2 aut.1028-10312009ENGINIST222H63540001884187502200000© 2009 INIST-CNRS. All rights reserved.10 ref.09-0298288PCAIEEE transactions on magneticsUSAThis paper describes a robust version to the TEAM 22 benchmark optimization problem and presents the methodology WCSA (worst case scenario approximation) to solve this problem and other similar cases. The robust multi-objective TEAM 22 model was built from its classical configuration by assuming the imprecisions in the design space. General and specific robust optimization formulas were developed to elaborate WCSA approach. WCSA adds an uncertainty parameter in the objective and constraint functions to perform the role of the system's imprecisions. A multi-objective genetic algorithm approach was chosen to deal with the robust formulation and to find out the set of robust minimizers that matches with the problem requirements. The behavior of the robust Pareto front is also examined.001B80A90Etude cas55Case study55Estudio caso55Conception56Design56Propriété magnétique57Magnetic properties57215OTOOTOBiennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 200813Athens GRC2008-05-11PASCAL 09-0298288 INISTRobust Multi-Objective TEAM 22 Problem: A Case Study of Uncertainties in Design OptimizationSOARES (Gustavo L.); ADRIANO (Ricardo L. S.); MAIA (Carlos A.); JAULIN (Luc); VASCONCELOS (Joao A.); KLADAS (Antonios G.); TSIBOUKIS (Theodoros D.)Electrical Engineering Department, Federal University of Minas Gerais/Belo Horizonte, CEP-31270-010/Brésil (1 aut., 3 aut., 5 aut.); Ecole Nationale Supérieure D'Ingénieurs des Études et Techniques d'Armement/Brest, 29806/France (1 aut., 4 aut.); Institut National de Recherche sur les Transports et leur Sécurité/Villeneuve d'Ascq, 59650/France (2 aut.); Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of Athens/Athens/Grèce (1 aut.); Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki/Thessaloniki/Grèce (2 aut.)
Publication en série; Congrès; Niveau analytique
IEEE transactions on magnetics; ISSN 0018-9464; Coden IEMGAQ; Etats-Unis; Da. 2009; Vol. 45; No. 3; Pp. 1028-1031; Bibl. 10 ref.AnglaisThis paper describes a robust version to the TEAM 22 benchmark optimization problem and presents the methodology WCSA (worst case scenario approximation) to solve this problem and other similar cases. The robust multi-objective TEAM 22 model was built from its classical configuration by assuming the imprecisions in the design space. General and specific robust optimization formulas were developed to elaborate WCSA approach. WCSA adds an uncertainty parameter in the objective and constraint functions to perform the role of the system's imprecisions. A multi-objective genetic algorithm approach was chosen to deal with the robust formulation and to find out the set of robust minimizers that matches with the problem requirements. The behavior of the robust Pareto front is also examined.001B80A90Etude cas; Conception; Propriété magnétiqueCase study; Design; Magnetic propertiesEstudio casoINIST-222H6.35400018841875022009-0298288
000C71 Noise Reduction in a Non-Homogenous Ground Penetrating Radar Problem by Multiobjective Neural NetworksX. L. Jr TravassosSENAI-Centro Integrado de Manufatura e TecnologiaSalvador 41650-010BRA1 aut.D. A. G. VieiraDepartment of Electrical Engineering, Federal University of Minas GeraisBelo Horizonte 31270-901BRA2 aut.V. PaladeComputing Department, Oxford UniversityOxford OX1 3QDGBR3 aut.A. NicolasAmpere Lab, Ecole Centrale de LyonEcully 69134FRA4 aut.09-02982952009PASCAL 09-0298295 INISTPascal:09-0298295001D080018-9464IEEE trans. magn.IEEE transactions on magneticsArtificial intelligenceInverse problemsMagnetic propertiesNeural networksTrainingIntelligence artificielleRéseau neuronalProblème inverseFormation professionnellePropriété magnétique
This paper applies artificial neural networks (ANNs) trained with a multiobjective algorithm to preprocess the ground penetrating radar data obtained from a finite-difference time-domain (FDTD) model. This preprocessing aims at improving the target's reflected wave signal-to-noise ratio (SNR). Once trained, the NN behaves as an adaptive filter which minimizes the cross-validation error. Results considering both white and colored Gaussian noise, with many different SNR, are presented and they show the effectiveness of the proposed approach.
0018-9464IEMGAQIEEE trans. magn.453Noise Reduction in a Non-Homogenous Ground Penetrating Radar Problem by Multiobjective Neural NetworksSelected Papers from the 13th Biennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 2008TRAVASSOS (X. L. Jr)VIEIRA (D. A. G.)PALADE (V.)NICOLAS (A.)KLADAS (Antonios G.)ed.TSIBOUKIS (Theodoros D.)ed.SENAI-Centro Integrado de Manufatura e TecnologiaSalvador 41650-010BRA1 aut.Department of Electrical Engineering, Federal University of Minas GeraisBelo Horizonte 31270-901BRA2 aut.Computing Department, Oxford UniversityOxford OX1 3QDGBR3 aut.Ampere Lab, Ecole Centrale de LyonEcully 69134FRA4 aut.Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of AthensAthensGRC1 aut.Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of ThessalonikiThessalonikiGRC2 aut.1454-14572009ENGINIST222H63540001884187512700000© 2009 INIST-CNRS. All rights reserved.11 ref.09-0298295PCAIEEE transactions on magneticsUSAThis paper applies artificial neural networks (ANNs) trained with a multiobjective algorithm to preprocess the ground penetrating radar data obtained from a finite-difference time-domain (FDTD) model. This preprocessing aims at improving the target's reflected wave signal-to-noise ratio (SNR). Once trained, the NN behaves as an adaptive filter which minimizes the cross-validation error. Results considering both white and colored Gaussian noise, with many different SNR, are presented and they show the effectiveness of the proposed approach.001B80A90Intelligence artificielle55Artificial intelligence55Réseau neuronal56Neural networks56Problème inverse57Inverse problems57Formation professionnelle58Training58Propriété magnétique59Magnetic properties59215OTOOTOBiennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 200813Athens GRC2008-05-11PASCAL 09-0298295 INISTNoise Reduction in a Non-Homogenous Ground Penetrating Radar Problem by Multiobjective Neural NetworksTRAVASSOS (X. L. Jr); VIEIRA (D. A. G.); PALADE (V.); NICOLAS (A.); KLADAS (Antonios G.); TSIBOUKIS (Theodoros D.)SENAI-Centro Integrado de Manufatura e Tecnologia/Salvador 41650-010/Brésil (1 aut.); Department of Electrical Engineering, Federal University of Minas Gerais/Belo Horizonte 31270-901/Brésil (2 aut.); Computing Department, Oxford University/Oxford OX1 3QD/Royaume-Uni (3 aut.); Ampere Lab, Ecole Centrale de Lyon/Ecully 69134/France (4 aut.); Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of Athens/Athens/Grèce (1 aut.); Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki/Thessaloniki/Grèce (2 aut.)
Publication en série; Congrès; Niveau analytique
IEEE transactions on magnetics; ISSN 0018-9464; Coden IEMGAQ; Etats-Unis; Da. 2009; Vol. 45; No. 3; Pp. 1454-1457; Bibl. 11 ref.AnglaisThis paper applies artificial neural networks (ANNs) trained with a multiobjective algorithm to preprocess the ground penetrating radar data obtained from a finite-difference time-domain (FDTD) model. This preprocessing aims at improving the target's reflected wave signal-to-noise ratio (SNR). Once trained, the NN behaves as an adaptive filter which minimizes the cross-validation error. Results considering both white and colored Gaussian noise, with many different SNR, are presented and they show the effectiveness of the proposed approach.001B80A90Intelligence artificielle; Réseau neuronal; Problème inverse; Formation professionnelle; Propriété magnétiqueArtificial intelligence; Neural networks; Inverse problems; Training; Magnetic propertiesINIST-222H6.35400018841875127009-0298295
000C72 Perturbation Finite Element Method for Magnetic Model Refinement of Air Gaps and Leakage FluxesPatrick DularDepartment of Electrical Engineering and Computer Science, ACE, University of Liège4000 LiègeBEL1 aut.2 aut.FNRS, University of Liège4000 LiègeBEL1 aut.Ruth V. SabariegoDepartment of Electrical Engineering and Computer Science, ACE, University of Liège4000 LiègeBEL1 aut.2 aut.Mauricio V. Ferreira Da LuzGRUCAD/EEL/UFSC88040-970 Florianópolis, Santa CatarinaBRA3 aut.4 aut.Patrick Kuo-PengGRUCAD/EEL/UFSC88040-970 Florianópolis, Santa CatarinaBRA3 aut.4 aut.Laurent Kr Henb HlUniversité de Lyon, Ampère (UMR CNRS 5005), École Centrale de Lyon69134 ÉcullyFRA5 aut.09-02983442009PASCAL 09-0298344 INISTPascal:09-0298344001D070018-9464IEEE trans. magn.IEEE transactions on magneticsAirFinite element methodMagnetic circuitsMagnetic propertiesMathematical modelsModellingMéthode élément finiModèle mathématiqueModélisationAirCircuit magnétiquePropriété magnétique
Model refinements of magnetic circuits are performed via a subproblem finite element method based on a perturbation technique. An approximate problem considering ideal flux tubes and simplified air-gap models is first solved. It gives the sources for a finite element perturbation problem considering the actual air gaps and flux tubes geometries with the exterior regions. The procedure simplifies both meshing and solving processes, and allows to quantify the gain given by each model refinement.
0018-9464IEMGAQIEEE trans. magn.453Perturbation Finite Element Method for Magnetic Model Refinement of Air Gaps and Leakage FluxesSelected Papers from the 13th Biennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 2008DULAR (Patrick)SABARIEGO (Ruth V.)FERREIRA DA LUZ (Mauricio V.)KUO-PENG (Patrick)KRÄHENBÜHL (Laurent)KLADAS (Antonios G.)ed.TSIBOUKIS (Theodoros D.)ed.Department of Electrical Engineering and Computer Science, ACE, University of Liège4000 LiègeBEL1 aut.2 aut.FNRS, University of Liège4000 LiègeBEL1 aut.GRUCAD/EEL/UFSC88040-970 Florianópolis, Santa CatarinaBRA3 aut.4 aut.Université de Lyon, Ampère (UMR CNRS 5005), École Centrale de Lyon69134 ÉcullyFRA5 aut.Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of AthensAthensGRC1 aut.Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of ThessalonikiThessalonikiGRC2 aut.1400-14032009ENGINIST222H63540001884187511400000© 2009 INIST-CNRS. All rights reserved.4 ref.09-0298344PCAIEEE transactions on magneticsUSAModel refinements of magnetic circuits are performed via a subproblem finite element method based on a perturbation technique. An approximate problem considering ideal flux tubes and simplified air-gap models is first solved. It gives the sources for a finite element perturbation problem considering the actual air gaps and flux tubes geometries with the exterior regions. The procedure simplifies both meshing and solving processes, and allows to quantify the gain given by each model refinement.001B80A90Méthode élément fini55Finite element method55Modèle mathématique56Mathematical models56Modélisation57Modelling57Air58Air58Circuit magnétique59Magnetic circuits59Propriété magnétique60Magnetic properties60215OTOOTOBiennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 200813Athens GRC2008-05-11PASCAL 09-0298344 INISTPerturbation Finite Element Method for Magnetic Model Refinement of Air Gaps and Leakage FluxesDULAR (Patrick); SABARIEGO (Ruth V.); FERREIRA DA LUZ (Mauricio V.); KUO-PENG (Patrick); KRÄHENBÜHL (Laurent); KLADAS (Antonios G.); TSIBOUKIS (Theodoros D.)Department of Electrical Engineering and Computer Science, ACE, University of Liège/4000 Liège/Belgique (1 aut., 2 aut.); FNRS, University of Liège/4000 Liège/Belgique (1 aut.); GRUCAD/EEL/UFSC/88040-970 Florianópolis, Santa Catarina/Brésil (3 aut., 4 aut.); Université de Lyon, Ampère (UMR CNRS 5005), École Centrale de Lyon/69134 Écully/France (5 aut.); Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of Athens/Athens/Grèce (1 aut.); Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki/Thessaloniki/Grèce (2 aut.)
Publication en série; Congrès; Niveau analytique
IEEE transactions on magnetics; ISSN 0018-9464; Coden IEMGAQ; Etats-Unis; Da. 2009; Vol. 45; No. 3; Pp. 1400-1403; Bibl. 4 ref.AnglaisModel refinements of magnetic circuits are performed via a subproblem finite element method based on a perturbation technique. An approximate problem considering ideal flux tubes and simplified air-gap models is first solved. It gives the sources for a finite element perturbation problem considering the actual air gaps and flux tubes geometries with the exterior regions. The procedure simplifies both meshing and solving processes, and allows to quantify the gain given by each model refinement.001B80A90Méthode élément fini; Modèle mathématique; Modélisation; Air; Circuit magnétique; Propriété magnétiqueFinite element method; Mathematical models; Modelling; Air; Magnetic circuits; Magnetic propertiesINIST-222H6.35400018841875114009-0298344
000C73 Maximum Working Volume Evaluation in a Non-Canonical Reverberation ChamberS. L. AvilaLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.Fundação Centros de Referência em Tecnologias Inovadoras88040-970, Florianópolis, SCBRA1 aut.M. A. Jr SantosLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.D. WeinzierlLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.Centro Universitário de Jaraguá do Sul, Rua dos Imigrantes89254-430, Jaraguá do Sul, SCBRA3 aut.L. Kr Henb HlLaboratoire Ampère (CNRS UMR5005), Université de Lyon, Ecole Centrale de Lyon69134, EcullyFRA4 aut.5 aut.6 aut.R. PerrusselLaboratoire Ampère (CNRS UMR5005), Université de Lyon, Ecole Centrale de Lyon69134, EcullyFRA4 aut.5 aut.6 aut.C. VollaireLaboratoire Ampère (CNRS UMR5005), Université de Lyon, Ecole Centrale de Lyon69134, EcullyFRA4 aut.5 aut.6 aut.C. A. F. SartoriLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.L. LebensztajnLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.J. R. CardosoLMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.09-02984692009PASCAL 09-0298469 INISTPascal:09-0298469001D060018-9464IEEE trans. magn.IEEE transactions on magneticsMagnetic propertiesPropriété magnétique
This paper presents a procedure for evaluating the performance of reverberation chambers, by approximating the maximum working volume in a given configuration. The evaluation of this volume is based on the geometrical and physical constraints, e.g., the ones related to the internal E-field distribution recommended by standards. The importance of the present work is related to the development of a non-canonical reverberation chamber configuration, whose excitation is carried out by transmission lines, instead of antennas plus paddles.
0018-9464IEMGAQIEEE trans. magn.453Maximum Working Volume Evaluation in a Non-Canonical Reverberation ChamberSelected Papers from the 13th Biennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 2008AVILA (S. L.)SANTOS (M. A. JR)WEINZIERL (D.)KRÄHENBÜHL (L.)PERRUSSEL (R.)VOLLAIRE (C.)SARTORI (C. A. F.)LEBENSZTAJN (L.)CARDOSO (J. R.)KLADAS (Antonios G.)ed.TSIBOUKIS (Theodoros D.)ed.LMAG/PEA/EPUSP05508-900, São Paulo, SPBRA1 aut.2 aut.3 aut.7 aut.8 aut.9 aut.Fundação Centros de Referência em Tecnologias Inovadoras88040-970, Florianópolis, SCBRA1 aut.Centro Universitário de Jaraguá do Sul, Rua dos Imigrantes89254-430, Jaraguá do Sul, SCBRA3 aut.Laboratoire Ampère (CNRS UMR5005), Université de Lyon, Ecole Centrale de Lyon69134, EcullyFRA4 aut.5 aut.6 aut.Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of AthensAthensGRC1 aut.Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of ThessalonikiThessalonikiGRC2 aut.1646-16492009ENGINIST222H63540001884187517500000© 2009 INIST-CNRS. All rights reserved.11 ref.09-0298469PCAIEEE transactions on magneticsUSAThis paper presents a procedure for evaluating the performance of reverberation chambers, by approximating the maximum working volume in a given configuration. The evaluation of this volume is based on the geometrical and physical constraints, e.g., the ones related to the internal E-field distribution recommended by standards. The importance of the present work is related to the development of a non-canonical reverberation chamber configuration, whose excitation is carried out by transmission lines, instead of antennas plus paddles.001B80A90Propriété magnétique55Magnetic properties55215OTOOTOBiennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 200813Athens GRC2008-05-11PASCAL 09-0298469 INISTMaximum Working Volume Evaluation in a Non-Canonical Reverberation ChamberAVILA (S. L.); SANTOS (M. A. JR); WEINZIERL (D.); KRÄHENBÜHL (L.); PERRUSSEL (R.); VOLLAIRE (C.); SARTORI (C. A. F.); LEBENSZTAJN (L.); CARDOSO (J. R.); KLADAS (Antonios G.); TSIBOUKIS (Theodoros D.)LMAG/PEA/EPUSP/05508-900, São Paulo, SP/Brésil (1 aut., 2 aut., 3 aut., 7 aut., 8 aut., 9 aut.); Fundação Centros de Referência em Tecnologias Inovadoras/88040-970, Florianópolis, SC/Brésil (1 aut.); Centro Universitário de Jaraguá do Sul, Rua dos Imigrantes/89254-430, Jaraguá do Sul, SC/Brésil (3 aut.); Laboratoire Ampère (CNRS UMR5005), Université de Lyon, Ecole Centrale de Lyon/69134, Ecully/France (4 aut., 5 aut., 6 aut.); Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of Athens/Athens/Grèce (1 aut.); Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki/Thessaloniki/Grèce (2 aut.)
Publication en série; Congrès; Niveau analytique
IEEE transactions on magnetics; ISSN 0018-9464; Coden IEMGAQ; Etats-Unis; Da. 2009; Vol. 45; No. 3; Pp. 1646-1649; Bibl. 11 ref.AnglaisThis paper presents a procedure for evaluating the performance of reverberation chambers, by approximating the maximum working volume in a given configuration. The evaluation of this volume is based on the geometrical and physical constraints, e.g., the ones related to the internal E-field distribution recommended by standards. The importance of the present work is related to the development of a non-canonical reverberation chamber configuration, whose excitation is carried out by transmission lines, instead of antennas plus paddles.001B80A90Propriété magnétiqueMagnetic propertiesINIST-222H6.35400018841875175009-0298469
000C74 Finite Element Three-Phase Transformer Modeling Taking Into Account a Vector Hysteresis ModelJean V. LeiteGRUCAD/EEL/UFSC88040-970, Florianópolis, Santa CatarinaBRA1 aut.3 aut.4 aut.Abdelkader BenabouL2EP, Bat P2, USTLVilleneuve d'Ascq 59655FRA2 aut.Nelson SadowskiGRUCAD/EEL/UFSC88040-970, Florianópolis, Santa CatarinaBRA1 aut.3 aut.4 aut.Mauricio V. Ferreira Da LuzGRUCAD/EEL/UFSC88040-970, Florianópolis, Santa CatarinaBRA1 aut.3 aut.4 aut.09-02984702009PASCAL 09-0298470 INISTPascal:09-0298470001D050018-9464IEEE trans. magn.IEEE transactions on magneticsFinite element methodMagnetic propertiesModellingMéthode élément finiModélisationPropriété magnétique
In this work an approach for modeling a transformer core taking into account magnetic hysteresis is presented. For this purpose, the inverse vector Jiles-Atherton hysteresis model is incorporated in a 2D finite element code. This model allows writing naturally the differential reluctivity tensor which can be directly used in the magnetic field equations. A three-phase transformer is modeled. The excitation characteristics of the transformer, as well as hysteresis loops at specific points, are presented. The proposed model was verified with obtained experimental data.
0018-9464IEMGAQIEEE trans. magn.453Finite Element Three-Phase Transformer Modeling Taking Into Account a Vector Hysteresis ModelSelected Papers from the 13th Biennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 2008LEITE (Jean V.)BENABOU (Abdelkader)SADOWSKI (Nelson)FERREIRA DA LUZ (Mauricio V.)KLADAS (Antonios G.)ed.TSIBOUKIS (Theodoros D.)ed.GRUCAD/EEL/UFSC88040-970, Florianópolis, Santa CatarinaBRA1 aut.3 aut.4 aut.L2EP, Bat P2, USTLVilleneuve d'Ascq 59655FRA2 aut.Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of AthensAthensGRC1 aut.Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of ThessalonikiThessalonikiGRC2 aut.1716-17192009ENGINIST222H63540001884187519200000© 2009 INIST-CNRS. All rights reserved.5 ref.09-0298470PCAIEEE transactions on magneticsUSAIn this work an approach for modeling a transformer core taking into account magnetic hysteresis is presented. For this purpose, the inverse vector Jiles-Atherton hysteresis model is incorporated in a 2D finite element code. This model allows writing naturally the differential reluctivity tensor which can be directly used in the magnetic field equations. A three-phase transformer is modeled. The excitation characteristics of the transformer, as well as hysteresis loops at specific points, are presented. The proposed model was verified with obtained experimental data.001B80A90Méthode élément fini55Finite element method55Modélisation56Modelling56Propriété magnétique57Magnetic properties57215OTOOTOBiennial IEEE Conference on Electromagnetic Field Computation IEEE CEFC 200813Athens GRC2008-05-11PASCAL 09-0298470 INISTFinite Element Three-Phase Transformer Modeling Taking Into Account a Vector Hysteresis ModelLEITE (Jean V.); BENABOU (Abdelkader); SADOWSKI (Nelson); FERREIRA DA LUZ (Mauricio V.); KLADAS (Antonios G.); TSIBOUKIS (Theodoros D.)GRUCAD/EEL/UFSC/88040-970, Florianópolis, Santa Catarina/Brésil (1 aut., 3 aut., 4 aut.); L2EP, Bat P2, USTL/Villeneuve d'Ascq 59655/France (2 aut.); Lab. of Electrical Machines & Power Electronics, Electric Power Division, Faculty of Electrical and Computer Engineering, National Technical University of Athens/Athens/Grèce (1 aut.); Applied & Computational Electromagnetics Lab., Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki/Thessaloniki/Grèce (2 aut.)
Publication en série; Congrès; Niveau analytique
IEEE transactions on magnetics; ISSN 0018-9464; Coden IEMGAQ; Etats-Unis; Da. 2009; Vol. 45; No. 3; Pp. 1716-1719; Bibl. 5 ref.AnglaisIn this work an approach for modeling a transformer core taking into account magnetic hysteresis is presented. For this purpose, the inverse vector Jiles-Atherton hysteresis model is incorporated in a 2D finite element code. This model allows writing naturally the differential reluctivity tensor which can be directly used in the magnetic field equations. A three-phase transformer is modeled. The excitation characteristics of the transformer, as well as hysteresis loops at specific points, are presented. The proposed model was verified with obtained experimental data.001B80A90Méthode élément fini; Modélisation; Propriété magnétiqueFinite element method; Modelling; Magnetic propertiesINIST-222H6.35400018841875192009-0298470
000C75 Deciphering morphology in Triatominae: The evolutionary signalsJ. P. DujardinUMR IRD-CNRS 2724, Agropolis, 911, BP 6450134394 MontpellierFRA1 aut.J. CostaFiocruzRio de JaneiroBRA2 aut.D. BustamanteLaboratorio de Entomologia Aplicada y Parasitologia, Escuela de Biología, Universidad de San CarlosGTM3 aut.N. JaramilloUniversidad de AntioquiaMedellinCOL4 aut.S. CatalaCentro Regional de Investigacion de La Rioja, CONICETARG5 aut.09-03026672009PASCAL 09-0302667 INISTPascal:09-0302667001D040001-706XActa trop.Acta tropicaMorphologyPhenotypeQuantitative analysisTropical medicineMorphologieAnalyse quantitativePhénotypeMédecine tropicale
Many species of Triatominae show evidence for morphological plasticity. Frequent taxonomic questions arose from this variability leading to disputes about describing new subspecies, species or even genera. We suggest this phenotypic flexibility is primarily an intraspecific feature, but with potential for evolutionary changes. We present arguments for a selection regime leading to the separation of species having low developmental canalization into morphologically distinct ecotypes. We suggest that these ecotypes, or morphs, or forms, may have evolutionary importance even if gene flow still exists between them. Thus, although we consider the morphological plasticity of Triatominae as an intraspecific trait, we defend the idea that it might represent a common evolutionary route to new species. Speciation processes in Triatominae could result from disruptive selection regimes combined with weak developmental canalization. Added to this basic pattern, accidental events could hasten evolutionary change. We suggest the heterosis as one of them.
0001-706XACTRAQActa trop.1102-3Deciphering morphology in Triatominae: The evolutionary signalsThe Biiology of Triatominae - Vectors of Chagas DiseaseDUJARDIN (J. P.)COSTA (J.)BUSTAMANTE (D.)JARAMILLO (N.)CATALA (S.)GUHL (Felipe)ed.UMR IRD-CNRS 2724, Agropolis, 911, BP 6450134394 MontpellierFRA1 aut.FiocruzRio de JaneiroBRA2 aut.Laboratorio de Entomologia Aplicada y Parasitologia, Escuela de Biología, Universidad de San CarlosGTM3 aut.Universidad de AntioquiaMedellinCOL4 aut.Centro Regional de Investigacion de La Rioja, CONICETARG5 aut.Universidad de Los Andes, Centro de Investigaciones en Microbiologia y Parasitologia Tropical (CIMPAT), A.A. 4976 Carrera 1a, n° 18-A-10BogotaCOL1 aut.101-1112009ENGINIST31653540001862535100200000© 2009 INIST-CNRS. All rights reserved.2 p.09-0302667PAActa tropicaNLDMany species of Triatominae show evidence for morphological plasticity. Frequent taxonomic questions arose from this variability leading to disputes about describing new subspecies, species or even genera. We suggest this phenotypic flexibility is primarily an intraspecific feature, but with potential for evolutionary changes. We present arguments for a selection regime leading to the separation of species having low developmental canalization into morphologically distinct ecotypes. We suggest that these ecotypes, or morphs, or forms, may have evolutionary importance even if gene flow still exists between them. Thus, although we consider the morphological plasticity of Triatominae as an intraspecific trait, we defend the idea that it might represent a common evolutionary route to new species. Speciation processes in Triatominae could result from disruptive selection regimes combined with weak developmental canalization. Added to this basic pattern, accidental events could hasten evolutionary change. We suggest the heterosis as one of them.002B01Morphologie07Morphology07Morfología07Analyse quantitative08Quantitative analysis08Análisis cuantitativo08Phénotype09Phenotype09Fenotipo09Médecine tropicale13Tropical medicine13Medicina tropical13215OTOOTOPASCAL 09-0302667 INISTDeciphering morphology in Triatominae: The evolutionary signalsDUJARDIN (J. P.); COSTA (J.); BUSTAMANTE (D.); JARAMILLO (N.); CATALA (S.); GUHL (Felipe)UMR IRD-CNRS 2724, Agropolis, 911, BP 64501/34394 Montpellier/France (1 aut.); Fiocruz/Rio de Janeiro/Brésil (2 aut.); Laboratorio de Entomologia Aplicada y Parasitologia, Escuela de Biología, Universidad de San Carlos/Guatemala (3 aut.); Universidad de Antioquia/Medellin/Colombie (4 aut.); Centro Regional de Investigacion de La Rioja, CONICET/Argentine (5 aut.); Universidad de Los Andes, Centro de Investigaciones en Microbiologia y Parasitologia Tropical (CIMPAT), A.A. 4976 Carrera 1a, n° 18-A-10/Bogota/Colombie (1 aut.)
Publication en série; Niveau analytique
Acta tropica; ISSN 0001-706X; Coden ACTRAQ; Pays-Bas; Da. 2009; Vol. 110; No. 2-3; Pp. 101-111; Bibl. 2 p.AnglaisMany species of Triatominae show evidence for morphological plasticity. Frequent taxonomic questions arose from this variability leading to disputes about describing new subspecies, species or even genera. We suggest this phenotypic flexibility is primarily an intraspecific feature, but with potential for evolutionary changes. We present arguments for a selection regime leading to the separation of species having low developmental canalization into morphologically distinct ecotypes. We suggest that these ecotypes, or morphs, or forms, may have evolutionary importance even if gene flow still exists between them. Thus, although we consider the morphological plasticity of Triatominae as an intraspecific trait, we defend the idea that it might represent a common evolutionary route to new species. Speciation processes in Triatominae could result from disruptive selection regimes combined with weak developmental canalization. Added to this basic pattern, accidental events could hasten evolutionary change. We suggest the heterosis as one of them.002B01Morphologie; Analyse quantitative; Phénotype; Médecine tropicaleMorphology; Quantitative analysis; Phenotype; Tropical medicineMorfología; Análisis cuantitativo; Fenotipo; Medicina tropicalINIST-3165.35400018625351002009-0302667
000C76 The chemical evolution of the galactic disk: I. Analysis and results. CommentaryB. EdvardssonAstronomical Observatory, Box 515751 20 UppsalaSWE1 aut.3 aut.J. AndersenCopenhagen University Observatory, Brorfeldevej 234340 TølløseDNK2 aut.B. GustafssonAstronomical Observatory, Box 515751 20 UppsalaSWE1 aut.3 aut.D. L. LambertDepartment of Astronomy, University of TexasAustin, TX 78712-1083USA4 aut.6 aut.P. E. NissenInstitute of Physics and Astronomy, University of Aarhus8000 AarhusDNK5 aut.J. TomkinDepartment of Astronomy, University of TexasAustin, TX 78712-1083USA4 aut.6 aut.B. BarbuyUniversidade de São Paulo, IAG, Rua do Matão 1226, Cidade UniversitáriaSão Paulo 05508-900BRA7 aut.R. CayrelObservatoire de Paris, GEPI, 61 av. de l'Observatoire75014 ParisFRA8 aut.09-03031032009PASCAL 09-0303103 INISTPascal:09-0303103001D030004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Absorption lineAbundance ratioAgeAsymptotic giant branchAtmosphere modelChemical evolutionCorrelationsEffective temperatureEquivalent widthGalactic centersGalactic disksIsochroneKinematicsLow-mass starsMassive starsMetal-poor starsMetal-rich starsMetallicityNucleosynthesisPhysical parameterProper motionRadial motionRadial velocitySpectroscopical observationStandard deviationStar formationStellar abundanceSupernovaeSurface gravityTheoretical modelUncertaintyEvolution chimiqueDisque galactiqueAbondance stellaireAgeCinématiqueCentre galactiqueObservation spectroscopiqueLargeur équivalenteRaie absorptionModèle théoriqueModèle atmosphèreTempérature effectiveGravité surfaceMétallicitéEtoile riche en métalIsochroneIncertitudeMouvement propreMouvement radialVitesse radialeParamètre physiqueRapport abondanceEcart typeNucléosynthèseEtoile massiveSupernovaBranche géante asymptotiqueCorrélationEtoile faible masseFormation stellaireEtoile pauvre en métal
With the aim to provide observational constraints on the evolution of the galactic disk, we have derived abundances of O, Na, Mg, Al, Si, Ca, Ti, Fe, Ni, Y, Zr, Ba and Nd, as well as individual photometric ages, for 189 nearby field F and G disk dwarfs. The galactic orbital properties of all stars have been derived from accurate kinematic data, enabling estimates to be made of the distances from the galactic center of the stars' birthplaces. Our extensive high resolution, high S/N, spectroscopic observations of carefully selected northern and southern stars provide accurate equivalent widths of up to 86 unblended absorption lines per star between 5000 and 9000 Å. The abundance analysis was made with greatly improved theoretical LTE model atmospheres. Through the inclusion of a great number of iron-peak element absorption lines the model fluxes reproduce the observed UV and visual fluxes with good accuracy. A new theoretical calibration of Teff as a function of Strömgren b - y for solar-type dwarfs has been established. The new models and Teff scale are shown to yield good agreement between photometric and spectroscopic measurements of effective temperatures and surface gravities, but the photometrically derived very high overall metallicities for the most metal rich stars are not supported by the spectroscopic analysis of weak spectral lines. Individual ages were derived from fits in the Teff - log g plane of these somewhat evolved dwarfs to isochrones by VandenBerg (1985). We expect the uncertainties in the relative ages to be about 25%, although the absolute errors may be larger. Distances, proper motions and radial velocities were translated to galactic U, V and W velocity components which in turn were independently used by M. Grenon and J. Sommer-Larsen to calculate stellar orbital parameters, which agree within 5%. Following Grenon, the mean galactocentric distances were used as estimates of stellar birth places to investigate abundance gradients in the disk at different epochs. The relative iron abundances [Fe/H] and the abundance ratios relative to iron for most elements are estimated to be accurate with a standard deviation of 0.05 dex. We discuss the evolution of α elements, odd-Z elements, iron peak elements and s elements as functions of stellar age and orbital properties in terms of nucleosynthesis in massive stars, in supernovae of Types Ia and II, and in AGB stars. There is a considerable variation in the metallicities of stars formed at a given time in the disk, which means that there is only a weak correlation between age and metallicity. The strongest age-abundance correlation is found for Ba, which is interpreted as the result of the efficient s-element synthesis in low-mass AGB stars which enrich the ISM long after star formation.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)5001The chemical evolution of the galactic disk: I. Analysis and results. CommentaryEDVARDSSON (B.)ANDERSEN (J.)GUSTAFSSON (B.)LAMBERT (D. L.)NISSEN (P. E.)TOMKIN (J.)BARBUY (B.)comment.CAYREL (R.)comment.Astronomical Observatory, Box 515751 20 UppsalaSWE1 aut.3 aut.Copenhagen University Observatory, Brorfeldevej 234340 TølløseDNK2 aut.Department of Astronomy, University of TexasAustin, TX 78712-1083USA4 aut.6 aut.Institute of Physics and Astronomy, University of Aarhus8000 AarhusDNK5 aut.Universidade de São Paulo, IAG, Rua do Matão 1226, Cidade UniversitáriaSão Paulo 05508-900BRA7 aut.Observatoire de Paris, GEPI, 61 av. de l'Observatoire75014 ParisFRA8 aut.391-4432009ENGINIST141763540001883290802700000© 2009 INIST-CNRS. All rights reserved.2 p.1/409-0303103PARCTAAstronomy and astrophysics : (Berlin. Print)FRAWith the aim to provide observational constraints on the evolution of the galactic disk, we have derived abundances of O, Na, Mg, Al, Si, Ca, Ti, Fe, Ni, Y, Zr, Ba and Nd, as well as individual photometric ages, for 189 nearby field F and G disk dwarfs. The galactic orbital properties of all stars have been derived from accurate kinematic data, enabling estimates to be made of the distances from the galactic center of the stars' birthplaces. Our extensive high resolution, high S/N, spectroscopic observations of carefully selected northern and southern stars provide accurate equivalent widths of up to 86 unblended absorption lines per star between 5000 and 9000 Å. The abundance analysis was made with greatly improved theoretical LTE model atmospheres. Through the inclusion of a great number of iron-peak element absorption lines the model fluxes reproduce the observed UV and visual fluxes with good accuracy. A new theoretical calibration of Teff as a function of Strömgren b - y for solar-type dwarfs has been established. The new models and Teff scale are shown to yield good agreement between photometric and spectroscopic measurements of effective temperatures and surface gravities, but the photometrically derived very high overall metallicities for the most metal rich stars are not supported by the spectroscopic analysis of weak spectral lines. Individual ages were derived from fits in the Teff - log g plane of these somewhat evolved dwarfs to isochrones by VandenBerg (1985). We expect the uncertainties in the relative ages to be about 25%, although the absolute errors may be larger. Distances, proper motions and radial velocities were translated to galactic U, V and W velocity components which in turn were independently used by M. Grenon and J. Sommer-Larsen to calculate stellar orbital parameters, which agree within 5%. Following Grenon, the mean galactocentric distances were used as estimates of stellar birth places to investigate abundance gradients in the disk at different epochs. The relative iron abundances [Fe/H] and the abundance ratios relative to iron for most elements are estimated to be accurate with a standard deviation of 0.05 dex. We discuss the evolution of α elements, odd-Z elements, iron peak elements and s elements as functions of stellar age and orbital properties in terms of nucleosynthesis in massive stars, in supernovae of Types Ia and II, and in AGB stars. There is a considerable variation in the metallicities of stars formed at a given time in the disk, which means that there is only a weak correlation between age and metallicity. The strongest age-abundance correlation is found for Ba, which is interpreted as the result of the efficient s-element synthesis in low-mass AGB stars which enrich the ISM long after star formation.001E03Evolution chimique26Chemical evolution26Evolución química26Disque galactique27Galactic disks27Abondance stellaire28Stellar abundance28Abundancia estelar28Age29Age29Edad29Cinématique30Kinematics30Centre galactique31Galactic centers31Observation spectroscopique32Spectroscopical observation32Observación espectroscópica32Largeur équivalente33Equivalent width33Anchura equivalente33Raie absorption34Absorption line34Raya absorción34Modèle théorique35Theoretical model35Modelo teórico35Modèle atmosphère36Atmosphere model36Modelo atmósfera36Température effective37Effective temperature37Gravité surface38Surface gravity38Métallicité39Metallicity39Metalicidad39Etoile riche en métal40Metal-rich stars40Isochrone41Isochrone41Isocrono41Incertitude42Uncertainty42Incertidumbre42Mouvement propre43Proper motion43Mouvement radial44Radial motion44Movimiento radial44Vitesse radiale45Radial velocity45Paramètre physique46Physical parameter46Parámetro físico46Rapport abondance47Abundance ratio47Relación abundancia47Ecart type48Standard deviation48Desviación típica48Nucléosynthèse49Nucleosynthesis49Etoile massive50Massive stars50Supernova90Supernovae90Branche géante asymptotique91Asymptotic giant branch91Rama gigante asintótica91Corrélation92Correlations92Etoile faible masse93Low-mass stars93Formation stellaire94Star formation94Etoile pauvre en métal95Metal-poor stars95215OTOOTOPASCAL 09-0303103 INISTThe chemical evolution of the galactic disk: I. Analysis and results. CommentaryEDVARDSSON (B.); ANDERSEN (J.); GUSTAFSSON (B.); LAMBERT (D. L.); NISSEN (P. E.); TOMKIN (J.); BARBUY (B.); CAYREL (R.)Astronomical Observatory, Box 515/751 20 Uppsala/Suède (1 aut., 3 aut.); Copenhagen University Observatory, Brorfeldevej 23/4340 Tølløse/Danemark (2 aut.); Department of Astronomy, University of Texas/Austin, TX 78712-1083/Etats-Unis (4 aut., 6 aut.); Institute of Physics and Astronomy, University of Aarhus/8000 Aarhus/Danemark (5 aut.); Universidade de São Paulo, IAG, Rua do Matão 1226, Cidade Universitária/São Paulo 05508-900/Brésil (7 aut.); Observatoire de Paris, GEPI, 61 av. de l'Observatoire/75014 Paris/France (8 aut.)
Publication en série; Article; Commentaire; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 500; No. 1; Pp. 391-443; Bibl. 2 p.1/4AnglaisWith the aim to provide observational constraints on the evolution of the galactic disk, we have derived abundances of O, Na, Mg, Al, Si, Ca, Ti, Fe, Ni, Y, Zr, Ba and Nd, as well as individual photometric ages, for 189 nearby field F and G disk dwarfs. The galactic orbital properties of all stars have been derived from accurate kinematic data, enabling estimates to be made of the distances from the galactic center of the stars' birthplaces. Our extensive high resolution, high S/N, spectroscopic observations of carefully selected northern and southern stars provide accurate equivalent widths of up to 86 unblended absorption lines per star between 5000 and 9000 Å. The abundance analysis was made with greatly improved theoretical LTE model atmospheres. Through the inclusion of a great number of iron-peak element absorption lines the model fluxes reproduce the observed UV and visual fluxes with good accuracy. A new theoretical calibration of Teff as a function of Strömgren b - y for solar-type dwarfs has been established. The new models and Teff scale are shown to yield good agreement between photometric and spectroscopic measurements of effective temperatures and surface gravities, but the photometrically derived very high overall metallicities for the most metal rich stars are not supported by the spectroscopic analysis of weak spectral lines. Individual ages were derived from fits in the Teff - log g plane of these somewhat evolved dwarfs to isochrones by VandenBerg (1985). We expect the uncertainties in the relative ages to be about 25%, although the absolute errors may be larger. Distances, proper motions and radial velocities were translated to galactic U, V and W velocity components which in turn were independently used by M. Grenon and J. Sommer-Larsen to calculate stellar orbital parameters, which agree within 5%. Following Grenon, the mean galactocentric distances were used as estimates of stellar birth places to investigate abundance gradients in the disk at different epochs. The relative iron abundances [Fe/H] and the abundance ratios relative to iron for most elements are estimated to be accurate with a standard deviation of 0.05 dex. We discuss the evolution of α elements, odd-Z elements, iron peak elements and s elements as functions of stellar age and orbital properties in terms of nucleosynthesis in massive stars, in supernovae of Types Ia and II, and in AGB stars. There is a considerable variation in the metallicities of stars formed at a given time in the disk, which means that there is only a weak correlation between age and metallicity. The strongest age-abundance correlation is found for Ba, which is interpreted as the result of the efficient s-element synthesis in low-mass AGB stars which enrich the ISM long after star formation.001E03Evolution chimique; Disque galactique; Abondance stellaire; Age; Cinématique; Centre galactique; Observation spectroscopique; Largeur équivalente; Raie absorption; Modèle théorique; Modèle atmosphère; Température effective; Gravité surface; Métallicité; Etoile riche en métal; Isochrone; Incertitude; Mouvement propre; Mouvement radial; Vitesse radiale; Paramètre physique; Rapport abondance; Ecart type; Nucléosynthèse; Etoile massive; Supernova; Branche géante asymptotique; Corrélation; Etoile faible masse; Formation stellaire; Etoile pauvre en métalChemical evolution; Galactic disks; Stellar abundance; Age; Kinematics; Galactic centers; Spectroscopical observation; Equivalent width; Absorption line; Theoretical model; Atmosphere model; Effective temperature; Surface gravity; Metallicity; Metal-rich stars; Isochrone; Uncertainty; Proper motion; Radial motion; Radial velocity; Physical parameter; Abundance ratio; Standard deviation; Nucleosynthesis; Massive stars; Supernovae; Asymptotic giant branch; Correlations; Low-mass stars; Star formation; Metal-poor starsEvolución química; Abundancia estelar; Edad; Observación espectroscópica; Anchura equivalente; Raya absorción; Modelo teórico; Modelo atmósfera; Metalicidad; Isocrono; Incertidumbre; Movimiento radial; Parámetro físico; Relación abundancia; Desviación típica; Rama gigante asintóticaINIST-14176.35400018832908027009-0303103
000C77 AtGRP5, a vacuole-located glycine-rich protein involved in cell elongationAmanda MangeonLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Claudia MagioliLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Adriana Dias Menezes-SalgueiroLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Vanessa CardealLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Cristina De OliveiraLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Vin Cius Costa GalvaoLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Rogério MargisCentro de Biotecnologia Universidade Federal do Rio Grande do SulPorto Alegre, RS 91501-970BRA7 aut.Gilbert EnglerUMR 1301 Interactions Biotiques et Santé Végétale, Institut National de la Recherche Agronomique06903 Sophia AntipolisFRA8 aut.Gilberto Sachetto-MartinsLaboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.09-03040232009PASCAL 09-0304023 INISTPascal:09-0304023001D020032-0935PlantaPlantaArabidopsis thalianaCell elongationDevelopmentGlycinePlant biologyProteinVacuoleVacuoleDéveloppementBiologie végétaleArabidopsis thalianaGlycineProtéineElongation cellulaire
Although several glycine-rich protein (GRP) genes were isolated and characterized, very little is known about their function. The primary structure of AtGRP5 from Arabidopsis thaliana has a signal peptide followed by a region with high glycine content. In this work, green fluorescent protein fusions were obtained in order to characterize the sub-cellular localization of the AtGRP5 protein. The results indicated that this protein is the first described vacuolar GRP. Sense, antisense and RNAi transgenic A. thaliana plants were generated and analyzed phenotypically. Plants overexpressing AtGRP5 showed longer roots and an enhanced elongation of the inflorescence axis, while antisense and RNAi plants demonstrated the opposite phenotype. The analysis of a knockout T-DNA line corroborates the phenotypes obtained with the antisense and RNAi plants. Altogether, these results suggest that this vacuolar GRP could be involved in organ growth by promoting cell elongation processes.
0032-0935PLANABPlanta2302AtGRP5, a vacuole-located glycine-rich protein involved in cell elongationMANGEON (Amanda)MAGIOLI (Claudia)DIAS MENEZES-SALGUEIRO (Adriana)CARDEAL (Vanessa)DE OLIVEIRA (Cristina)GALVAO (Vinícius Costa)MARGIS (Rogério)ENGLER (Gilbert)SACHETTO-MARTINS (Gilberto)Laboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011Rio de Janeiro, 21941-970BRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.9 aut.Centro de Biotecnologia Universidade Federal do Rio Grande do SulPorto Alegre, RS 91501-970BRA7 aut.UMR 1301 Interactions Biotiques et Santé Végétale, Institut National de la Recherche Agronomique06903 Sophia AntipolisFRA8 aut.253-2652009ENGINIST9163540001883968900200000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0304023PAPlantaDEUAlthough several glycine-rich protein (GRP) genes were isolated and characterized, very little is known about their function. The primary structure of AtGRP5 from Arabidopsis thaliana has a signal peptide followed by a region with high glycine content. In this work, green fluorescent protein fusions were obtained in order to characterize the sub-cellular localization of the AtGRP5 protein. The results indicated that this protein is the first described vacuolar GRP. Sense, antisense and RNAi transgenic A. thaliana plants were generated and analyzed phenotypically. Plants overexpressing AtGRP5 showed longer roots and an enhanced elongation of the inflorescence axis, while antisense and RNAi plants demonstrated the opposite phenotype. The analysis of a knockout T-DNA line corroborates the phenotypes obtained with the antisense and RNAi plants. Altogether, these results suggest that this vacuolar GRP could be involved in organ growth by promoting cell elongation processes.002AVacuole01Vacuole01Vacuola01Développement02Development02Desarrollo02Biologie végétale03Plant biology03Biología vegetal03Arabidopsis thalianaNS10Arabidopsis thalianaNS10Arabidopsis thalianaNS10GlycineNKFR15GlycineNKFR15GlicinaNKFR15Protéine16Protein16Proteína16Elongation cellulaireCD96Cell elongationCD96Elongación celularCD96CruciferaeNSCruciferaeNSCruciferaeNSDicotyledonesNSDicotyledonesNSDicotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSPlante expérimentale31Experimental plant31Planta experimental31222OTOOTOPASCAL 09-0304023 INISTAtGRP5, a vacuole-located glycine-rich protein involved in cell elongationMANGEON (Amanda); MAGIOLI (Claudia); DIAS MENEZES-SALGUEIRO (Adriana); CARDEAL (Vanessa); DE OLIVEIRA (Cristina); GALVAO (Vinícius Costa); MARGIS (Rogério); ENGLER (Gilbert); SACHETTO-MARTINS (Gilberto)Laboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro C.P. 68011/Rio de Janeiro, 21941-970/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 9 aut.); Centro de Biotecnologia Universidade Federal do Rio Grande do Sul/Porto Alegre, RS 91501-970/Brésil (7 aut.); UMR 1301 Interactions Biotiques et Santé Végétale, Institut National de la Recherche Agronomique/06903 Sophia Antipolis/France (8 aut.)
Publication en série; Niveau analytique
Planta; ISSN 0032-0935; Coden PLANAB; Allemagne; Da. 2009; Vol. 230; No. 2; Pp. 253-265; Bibl. 1 p.3/4AnglaisAlthough several glycine-rich protein (GRP) genes were isolated and characterized, very little is known about their function. The primary structure of AtGRP5 from Arabidopsis thaliana has a signal peptide followed by a region with high glycine content. In this work, green fluorescent protein fusions were obtained in order to characterize the sub-cellular localization of the AtGRP5 protein. The results indicated that this protein is the first described vacuolar GRP. Sense, antisense and RNAi transgenic A. thaliana plants were generated and analyzed phenotypically. Plants overexpressing AtGRP5 showed longer roots and an enhanced elongation of the inflorescence axis, while antisense and RNAi plants demonstrated the opposite phenotype. The analysis of a knockout T-DNA line corroborates the phenotypes obtained with the antisense and RNAi plants. Altogether, these results suggest that this vacuolar GRP could be involved in organ growth by promoting cell elongation processes.002AVacuole; Développement; Biologie végétale; Arabidopsis thaliana; Glycine; Protéine; Elongation cellulaireCruciferae; Dicotyledones; Angiospermae; Spermatophyta; Plante expérimentaleVacuole; Development; Plant biology; Arabidopsis thaliana; Glycine; Protein; Cell elongationCruciferae; Dicotyledones; Angiospermae; Spermatophyta; Experimental plantVacuola; Desarrollo; Biología vegetal; Arabidopsis thaliana; Glicina; Proteína; Elongación celularINIST-916.35400018839689002009-0304023
000C78 Invariant Natural Killer T Cells and TGF-β Attenuate Anti-GBM GlomerulonephritisLaurent MesnardINSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.AP-HP, Hôpital Tenon, Urgences Néphrologiques & Transplantation RénaleFRA1 aut.5 aut.8 aut.Alexandre D. C. KellerUniversité Paris Descartes, Faculté de Médecine, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8147ParisFRA2 aut.3 aut.9 aut.Universidade Federal de São Paulo (UNIFESP), Nephrology DivisionBRA2 aut.Marie-Laure MichelUniversité Paris Descartes, Faculté de Médecine, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8147ParisFRA2 aut.3 aut.9 aut.Sophie VandermeerschINSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.Cédric RafatINSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.AP-HP, Hôpital Tenon, Urgences Néphrologiques & Transplantation RénaleFRA1 aut.5 aut.8 aut.Emmanuel LetavernierINSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.Yves TillerINRA, UMR85, Unité de Physiologie de la Reproduction et des ComportementsNouzillyFRA7 aut.CNRSNouzillyFRA7 aut.Université François RabelaisToursFRA7 aut.Haras NationauxNouzillyFRA7 aut.IFR 135, Imagerie FonctionnelleFRA7 aut.Eric RondeauINSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.AP-HP, Hôpital Tenon, Urgences Néphrologiques & Transplantation RénaleFRA1 aut.5 aut.8 aut.Maria C. Leite-De-MoraesUniversité Paris Descartes, Faculté de Médecine, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8147ParisFRA2 aut.3 aut.9 aut.09-03048442009PASCAL 09-0304844 INISTPascal:09-0304844001D011046-6673J. Am. Soc. Nephrol.Journal of the American Society of NephrologyAntibasement membrane glomerulonephritisInvariant natural killer T cellNephrologyTransforming growth factor βUrologyGlomérulonéphrite antimembrane basaleFacteur croissance transformant βNéphrologieUrologieLymphocyte iNKT
Invariant natural killer T (iNKT) cells represent a particular subset of T lymphocytes capable of producing several cytokines, which exert regulatory or effector functions, following stimulation of the T cell receptor. In this study, we investigated the influence of iNKT cells on the development of experimental anti-glomerular basement membrane glomerulonephritis (anti-GBM GN). After injection of anti-GBM serum, the number of kidney iNKT cells rapidly increased. iNKT cell-deficient mice (Jα18-/-) injected with anti-GBM serum demonstrated worse renal function, increased proteinuria, and greater glomerular and tubular injury compared with similarly treated wild-type mice. We did not detect significant differences in Th1/Th2 polarization in renal tissue that might have explained the severity of disease in Jα18-/- mice. Interestingly, expression of both TGF-β and TGF-β-induced (TGFBI) mRNA was higher in wild-type kidneys compared with Jα18-/- kidneys, suggesting a possible protective role for TGF-β in anti-GBM GN. Administration of an anti-TGF-β neutralizing antibody significantly enhanced the severity of disease in wild-type, but not Jα18-/-, mice. In conclusion, in experimental anti-GBM GN, iNKT cells attenuate disease severity and TGF-β has a renoprotective role.
1046-6673JASNEUJ. Am. Soc. Nephrol.206Invariant Natural Killer T Cells and TGF-β Attenuate Anti-GBM GlomerulonephritisMESNARD (Laurent)KELLER (Alexandre D. C.)MICHEL (Marie-Laure)VANDERMEERSCH (Sophie)RAFAT (Cédric)LETAVERNIER (Emmanuel)TILLER (Yves)RONDEAU (Eric)LEITE-DE-MORAES (Maria C.)INSERM, UMR S 702, Hôpital TenonParisFRA1 aut.4 aut.5 aut.6 aut.8 aut.AP-HP, Hôpital Tenon, Urgences Néphrologiques & Transplantation RénaleFRA1 aut.5 aut.8 aut.Université Paris Descartes, Faculté de Médecine, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8147ParisFRA2 aut.3 aut.9 aut.Universidade Federal de São Paulo (UNIFESP), Nephrology DivisionBRA2 aut.INRA, UMR85, Unité de Physiologie de la Reproduction et des ComportementsNouzillyFRA7 aut.CNRSNouzillyFRA7 aut.Université François RabelaisToursFRA7 aut.Haras NationauxNouzillyFRA7 aut.IFR 135, Imagerie FonctionnelleFRA7 aut.1282-12922009ENGINIST260493540001879370402000000© 2009 INIST-CNRS. All rights reserved.60 ref.09-0304844PAJournal of the American Society of NephrologyUSAInvariant natural killer T (iNKT) cells represent a particular subset of T lymphocytes capable of producing several cytokines, which exert regulatory or effector functions, following stimulation of the T cell receptor. In this study, we investigated the influence of iNKT cells on the development of experimental anti-glomerular basement membrane glomerulonephritis (anti-GBM GN). After injection of anti-GBM serum, the number of kidney iNKT cells rapidly increased. iNKT cell-deficient mice (Jα18-/-) injected with anti-GBM serum demonstrated worse renal function, increased proteinuria, and greater glomerular and tubular injury compared with similarly treated wild-type mice. We did not detect significant differences in Th1/Th2 polarization in renal tissue that might have explained the severity of disease in Jα18-/- mice. Interestingly, expression of both TGF-β and TGF-β-induced (TGFBI) mRNA was higher in wild-type kidneys compared with Jα18-/- kidneys, suggesting a possible protective role for TGF-β in anti-GBM GN. Administration of an anti-TGF-β neutralizing antibody significantly enhanced the severity of disease in wild-type, but not Jα18-/-, mice. In conclusion, in experimental anti-GBM GN, iNKT cells attenuate disease severity and TGF-β has a renoprotective role.002B14A01Glomérulonéphrite antimembrane basaleNM01Antibasement membrane glomerulonephritisNM01Glomerulonefritis antimembrana basalNM01Facteur croissance transformant β02Transforming growth factor β02Factor crecimiento transformante β02Néphrologie03Nephrology03Nefrología03Urologie05Urology05Urología05Lymphocyte iNKTCD96Invariant natural killer T cellCD96Linfocito iNKTCD96Pathologie de l'appareil urinaire37Urinary system disease37Aparato urinario patología37Néphropathie glomérulaire38Glomerulonephritis38Nefropatía glomerular38Pathologie du rein39Kidney disease39Riñón patología39222OTOOTOPASCAL 09-0304844 INISTInvariant Natural Killer T Cells and TGF-β Attenuate Anti-GBM GlomerulonephritisMESNARD (Laurent); KELLER (Alexandre D. C.); MICHEL (Marie-Laure); VANDERMEERSCH (Sophie); RAFAT (Cédric); LETAVERNIER (Emmanuel); TILLER (Yves); RONDEAU (Eric); LEITE-DE-MORAES (Maria C.)INSERM, UMR S 702, Hôpital Tenon/Paris/France (1 aut., 4 aut., 5 aut., 6 aut., 8 aut.); AP-HP, Hôpital Tenon, Urgences Néphrologiques & Transplantation Rénale/France (1 aut., 5 aut., 8 aut.); Université Paris Descartes, Faculté de Médecine, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8147/Paris/France (2 aut., 3 aut., 9 aut.); Universidade Federal de São Paulo (UNIFESP), Nephrology Division/Brésil (2 aut.); INRA, UMR85, Unité de Physiologie de la Reproduction et des Comportements/Nouzilly/France (7 aut.); CNRS/Nouzilly/France (7 aut.); Université François Rabelais/Tours/France (7 aut.); Haras Nationaux/Nouzilly/France (7 aut.); IFR 135, Imagerie Fonctionnelle/France (7 aut.)
Publication en série; Niveau analytique
Journal of the American Society of Nephrology; ISSN 1046-6673; Coden JASNEU; Etats-Unis; Da. 2009; Vol. 20; No. 6; Pp. 1282-1292; Bibl. 60 ref.AnglaisInvariant natural killer T (iNKT) cells represent a particular subset of T lymphocytes capable of producing several cytokines, which exert regulatory or effector functions, following stimulation of the T cell receptor. In this study, we investigated the influence of iNKT cells on the development of experimental anti-glomerular basement membrane glomerulonephritis (anti-GBM GN). After injection of anti-GBM serum, the number of kidney iNKT cells rapidly increased. iNKT cell-deficient mice (Jα18-/-) injected with anti-GBM serum demonstrated worse renal function, increased proteinuria, and greater glomerular and tubular injury compared with similarly treated wild-type mice. We did not detect significant differences in Th1/Th2 polarization in renal tissue that might have explained the severity of disease in Jα18-/- mice. Interestingly, expression of both TGF-β and TGF-β-induced (TGFBI) mRNA was higher in wild-type kidneys compared with Jα18-/- kidneys, suggesting a possible protective role for TGF-β in anti-GBM GN. Administration of an anti-TGF-β neutralizing antibody significantly enhanced the severity of disease in wild-type, but not Jα18-/-, mice. In conclusion, in experimental anti-GBM GN, iNKT cells attenuate disease severity and TGF-β has a renoprotective role.002B14A01Glomérulonéphrite antimembrane basale; Facteur croissance transformant β; Néphrologie; Urologie; Lymphocyte iNKTPathologie de l'appareil urinaire; Néphropathie glomérulaire; Pathologie du reinAntibasement membrane glomerulonephritis; Transforming growth factor β; Nephrology; Urology; Invariant natural killer T cellUrinary system disease; Glomerulonephritis; Kidney diseaseGlomerulonefritis antimembrana basal; Factor crecimiento transformante β; Nefrología; Urología; Linfocito iNKTINIST-26049.35400018793704020009-0304844
000C79 Species abundance distributions and numerical dominance in gastrointestinal helminth communities of fish hostsR. PoulinDepartment of Zoology, University of Otago, PO Box 56Dunedin 9054NZL1 aut.J. L. LuqueDepartamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Caixa Postal 74.508CEP 23851-970, Seropédica, RJBRA2 aut.F. GuilhaumonUMR CNRS-UMII 5119 Ecosystèmes Lagunaires, Université Montpellier II, CC09334095 MontpellierFRA3 aut.4 aut.D. MouillotUMR CNRS-UMII 5119 Ecosystèmes Lagunaires, Université Montpellier II, CC09334095 MontpellierFRA3 aut.4 aut.09-03049202008PASCAL 09-0304920 INISTPascal:09-0304920001D000022-149XJ. helminthol.Journal of helminthologyAnimal communityBrazilEcological abundanceGastrointestinalHelminthaHostHost parasite relationInterspecific comparisonParasitePiscesSouthwest AtlanticSpecies richnessCommunauté animaleParasiteGastrointestinalAbondance écologiqueComparaison interspécifiqueHôteRichesse spécifiqueRelation hôte parasiteBrésilOcéan Atlantique Sud OuestHelminthaPisces
The abundances of different species in a parasite community are never similar: there is typically one or a few numerically dominant species and many species with low abundance. Here, we determine whether basic features of parasite communities are associated with strong dominance by one or a few species, among 39 component communities of gastrointestinal helminths in marine fishes from Brazil. First, we tested whether the shape of the species abundance distribution in these communities fits that predicted by several theoretical models, using a goodness-of-fit procedure. Only the canonical lognormal model could be rejected for 5 out of 39 communities; all other comparisons of observed and predicted abundance distributions showed no significant differences, although this may be due to limited statistical power. Second, we used the ratio between the abundance of the most abundant species and either the second or third most abundant species, as indices of dominance; these show, for instance, that the dominant species in a community is typically twice, but sometimes over ten times, as abundant as the next most abundant species. We found that these ratios were not influenced by either the community's species richness, the mean number of individual parasites per host, or the taxonomic identity of the dominant species. However, the abundance ratio between the first and third most abundant species in a community was significantly correlated with an independent index of species interactivity, based on the likelihood that the different parasite species in a component community co-occur in the same host individuals: the difference in abundance between the dominant and third most abundant species was greater in communities characterized by weak interactions. These findings suggest that strong interactions may lead to greater evenness in the abundance of species, and that numerical dominance is more likely to result from interspecific differences in recruitment rates.
0022-149XJOHLATJ. helminthol.823Species abundance distributions and numerical dominance in gastrointestinal helminth communities of fish hostsPOULIN (R.)LUQUE (J. L.)GUILHAUMON (F.)MOUILLOT (D.)Department of Zoology, University of Otago, PO Box 56Dunedin 9054NZL1 aut.Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Caixa Postal 74.508CEP 23851-970, Seropédica, RJBRA2 aut.UMR CNRS-UMII 5119 Ecosystèmes Lagunaires, Université Montpellier II, CC09334095 MontpellierFRA3 aut.4 aut.193-2022008ENGINIST64113540001962970900200000© 2009 INIST-CNRS. All rights reserved.09-0304920PAJournal of helminthologyGBRThe abundances of different species in a parasite community are never similar: there is typically one or a few numerically dominant species and many species with low abundance. Here, we determine whether basic features of parasite communities are associated with strong dominance by one or a few species, among 39 component communities of gastrointestinal helminths in marine fishes from Brazil. First, we tested whether the shape of the species abundance distribution in these communities fits that predicted by several theoretical models, using a goodness-of-fit procedure. Only the canonical lognormal model could be rejected for 5 out of 39 communities; all other comparisons of observed and predicted abundance distributions showed no significant differences, although this may be due to limited statistical power. Second, we used the ratio between the abundance of the most abundant species and either the second or third most abundant species, as indices of dominance; these show, for instance, that the dominant species in a community is typically twice, but sometimes over ten times, as abundant as the next most abundant species. We found that these ratios were not influenced by either the community's species richness, the mean number of individual parasites per host, or the taxonomic identity of the dominant species. However, the abundance ratio between the first and third most abundant species in a community was significantly correlated with an independent index of species interactivity, based on the likelihood that the different parasite species in a component community co-occur in the same host individuals: the difference in abundance between the dominant and third most abundant species was greater in communities characterized by weak interactions. These findings suggest that strong interactions may lead to greater evenness in the abundance of species, and that numerical dominance is more likely to result from interspecific differences in recruitment rates.002A12D05002A14B02C2ACommunauté animale01Animal community01Comunidad animal01Parasite02Parasite02Parásito02Gastrointestinal03Gastrointestinal03Gastrointestinal03Abondance écologique04Ecological abundance04Abundancia ecológica04Comparaison interspécifique05Interspecific comparison05Comparación interespecífica05Hôte06Host06Huesped06Richesse spécifique07Species richness07Riqueza específica07Relation hôte parasite08Host parasite relation08Relación huesped parásito08BrésilNG19BrazilNG19BrasilNG19Océan Atlantique Sud Ouest56420Southwest Atlantic56420Océano Atlántico Sudoeste56420HelminthaNS55HelminthaNS55HelminthaNS55PiscesNS56PiscesNS56PiscesNS56Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNGOcéan AtlantiqueNGAtlantic OceanNGOcéano AtlánticoNGInvertebrataNSInvertebrataNSInvertebrataNSVertebrataNSVertebrataNSVertebrataNS222PASCAL 09-0304920 INISTSpecies abundance distributions and numerical dominance in gastrointestinal helminth communities of fish hostsPOULIN (R.); LUQUE (J. L.); GUILHAUMON (F.); MOUILLOT (D.)Department of Zoology, University of Otago, PO Box 56/Dunedin 9054/Nouvelle-Zélande (1 aut.); Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Caixa Postal 74.508/CEP 23851-970, Seropédica, RJ/Brésil (2 aut.); UMR CNRS-UMII 5119 Ecosystèmes Lagunaires, Université Montpellier II, CC093/34095 Montpellier/France (3 aut., 4 aut.)
Publication en série; Niveau analytique
Journal of helminthology; ISSN 0022-149X; Coden JOHLAT; Royaume-Uni; Da. 2008; Vol. 82; No. 3; Pp. 193-202AnglaisThe abundances of different species in a parasite community are never similar: there is typically one or a few numerically dominant species and many species with low abundance. Here, we determine whether basic features of parasite communities are associated with strong dominance by one or a few species, among 39 component communities of gastrointestinal helminths in marine fishes from Brazil. First, we tested whether the shape of the species abundance distribution in these communities fits that predicted by several theoretical models, using a goodness-of-fit procedure. Only the canonical lognormal model could be rejected for 5 out of 39 communities; all other comparisons of observed and predicted abundance distributions showed no significant differences, although this may be due to limited statistical power. Second, we used the ratio between the abundance of the most abundant species and either the second or third most abundant species, as indices of dominance; these show, for instance, that the dominant species in a community is typically twice, but sometimes over ten times, as abundant as the next most abundant species. We found that these ratios were not influenced by either the community's species richness, the mean number of individual parasites per host, or the taxonomic identity of the dominant species. However, the abundance ratio between the first and third most abundant species in a community was significantly correlated with an independent index of species interactivity, based on the likelihood that the different parasite species in a component community co-occur in the same host individuals: the difference in abundance between the dominant and third most abundant species was greater in communities characterized by weak interactions. These findings suggest that strong interactions may lead to greater evenness in the abundance of species, and that numerical dominance is more likely to result from interspecific differences in recruitment rates.002A12D05; 002A14B02C2ACommunauté animale; Parasite; Gastrointestinal; Abondance écologique; Comparaison interspécifique; Hôte; Richesse spécifique; Relation hôte parasite; Brésil; Océan Atlantique Sud Ouest; Helmintha; PiscesAmérique du Sud; Amérique; Océan Atlantique; Invertebrata; VertebrataAnimal community; Parasite; Gastrointestinal; Ecological abundance; Interspecific comparison; Host; Species richness; Host parasite relation; Brazil; Southwest Atlantic; Helmintha; PiscesSouth America; America; Atlantic Ocean; Invertebrata; VertebrataComunidad animal; Parásito; Gastrointestinal; Abundancia ecológica; Comparación interespecífica; Huesped; Riqueza específica; Relación huesped parásito; Brasil; Océano Atlántico Sudoeste; Helmintha; PiscesINIST-6411.35400019629709002009-0304920
000C80 Cannabinoid-induced conditioned place preference in the spontaneously hypertensive rat-an animal model of attention deficit hyperactivity disorderPablo PandolfoDepartamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC)Florianópolis, SCBRA1 aut.3 aut.4 aut.Leandro F. VendruscoloCNRS-UMR 5227, Université Bordeaux 1 et 2BordeauxFRA2 aut.Regina SordiDepartamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC)Florianópolis, SCBRA1 aut.3 aut.4 aut.Reinaldo N. TakahashiDepartamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC)Florianópolis, SCBRA1 aut.3 aut.4 aut.09-03063812009PASCAL 09-0306381 INISTPascal:09-0306381001C99FRANCIS 09-0306381 INIST0033-3158PsychopharmacologiaPsychopharmacologiaAddictionAdolescentAnimalAnimal modelAttention disorder with hyperactivityCannabinoidConditioned place preferenceDopamineDrug addictionDrug of abuseHypertensionRatRewardCannabinoïdePréférence place conditionnéeHypertension artérielleModèle animalRatTrouble déficitaire de l'attention avec hyperactivitéToxicomanieAddictionAdolescentDopamineRécompenseAnimalSubstance toxicomanogène
Rationale Cannabis preparations are the most widely consumed illicit drugs, and their use typically begins in adolescence. The prevalence of cannabis abuse is higher in patients with attention deficit/hyperactivity disorder (ADHD) than in the general population, yet, knowledge about the motivational properties of cannabinoids in animal models of ADHD are lacking. Objective To compare the motivational effects of the synthetic cannabinoid agonist WIN55,212-2 (WIN) in adolescent and adult spontaneously hypertensive rats (SHR), a validated animal model of ADHD, and Wistar rats, representing a "normal" genetically heterogeneous population. We also asked whether the effects of WIN depended (1) on the activation of the cerebral subtype of cannabinoid receptors, namely, the CB1 cannabinoid receptor and (2) on putative changes by WIN in blood pressure. Methods WIN was tested under an unbiased conditioned place preference (CPP) paradigm. Blood pressure after WIN administration was also monitored in additional groups of rats. Results In the Wistar rats, WIN produced place aversion only in the adult but not adolescent rats. In contrast, WIN produced CPP in both adolescent and adult SHR rats. The behavioral effects of WIN were CB1-mediated and not related to blood pressure. Conclusion The contrasting effects of WIN in Wistar and SHR, and the higher resistance of adolescent rats to the aversive and rewarding effects of WIN in these two strains suggests that both adolescence and the ADHD-like profile exhibited by the SHR strain constitute factors that influence the motivational properties of cannabinoids.
0033-3158PSYPAGPsychopharmacologia2052Cannabinoid-induced conditioned place preference in the spontaneously hypertensive rat-an animal model of attention deficit hyperactivity disorderPANDOLFO (Pablo)VENDRUSCOLO (Leandro F.)SORDI (Regina)TAKAHASHI (Reinaldo N.)Departamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC)Florianópolis, SCBRA1 aut.3 aut.4 aut.CNRS-UMR 5227, Université Bordeaux 1 et 2BordeauxFRA2 aut.319-3262009ENGINIST17613540001872283601300000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0306381PAPsychopharmacologiaDEURationale Cannabis preparations are the most widely consumed illicit drugs, and their use typically begins in adolescence. The prevalence of cannabis abuse is higher in patients with attention deficit/hyperactivity disorder (ADHD) than in the general population, yet, knowledge about the motivational properties of cannabinoids in animal models of ADHD are lacking. Objective To compare the motivational effects of the synthetic cannabinoid agonist WIN55,212-2 (WIN) in adolescent and adult spontaneously hypertensive rats (SHR), a validated animal model of ADHD, and Wistar rats, representing a "normal" genetically heterogeneous population. We also asked whether the effects of WIN depended (1) on the activation of the cerebral subtype of cannabinoid receptors, namely, the CB1 cannabinoid receptor and (2) on putative changes by WIN in blood pressure. Methods WIN was tested under an unbiased conditioned place preference (CPP) paradigm. Blood pressure after WIN administration was also monitored in additional groups of rats. Results In the Wistar rats, WIN produced place aversion only in the adult but not adolescent rats. In contrast, WIN produced CPP in both adolescent and adult SHR rats. The behavioral effects of WIN were CB1-mediated and not related to blood pressure. Conclusion The contrasting effects of WIN in Wistar and SHR, and the higher resistance of adolescent rats to the aversive and rewarding effects of WIN in these two strains suggests that both adolescence and the ADHD-like profile exhibited by the SHR strain constitute factors that influence the motivational properties of cannabinoids.002B18D05002B12B05002B18C05ACannabinoïde01Cannabinoid01Canabinoide01Préférence place conditionnée02Conditioned place preference02Preferencia sitio condicionada02Hypertension artérielle03Hypertension03Hipertensión arterial03Modèle animal04Animal model04Modelo animal04Rat05Rat05Rata05Trouble déficitaire de l'attention avec hyperactivitéNM06Attention disorder with hyperactivityNM06Trastorno por déficit de atención e hiperactividadNM06Toxicomanie07Drug addiction07Toxicomanía07AddictionNM08AddictionNM08AdicciónNM08Adolescent09Adolescent09Adolescente09DopamineNKFR10DopamineNKFR10DopaminaNKFR10Récompense11Reward11Recompensa11Animal12Animal12Animal12Substance toxicomanogène23Drug of abuse23Sustancia toxicomanógena23RodentiaNSRodentiaNSRodentiaNSMammaliaNSMammaliaNSMammaliaNSVertebrataNSVertebrataNSVertebrataNSHommeHumanHombrePathologie de l'appareil circulatoire37Cardiovascular disease37Aparato circulatorio patología37Catécholamine38Catecholamine38Catecolamina38Neurotransmetteur39Neurotransmitter39Neurotransmisor39222PASCAL 09-0306381 INISTCannabinoid-induced conditioned place preference in the spontaneously hypertensive rat-an animal model of attention deficit hyperactivity disorderPANDOLFO (Pablo); VENDRUSCOLO (Leandro F.); SORDI (Regina); TAKAHASHI (Reinaldo N.)Departamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC)/Florianópolis, SC/Brésil (1 aut., 3 aut., 4 aut.); CNRS-UMR 5227, Université Bordeaux 1 et 2/Bordeaux/France (2 aut.)
Publication en série; Niveau analytique
Psychopharmacologia; ISSN 0033-3158; Coden PSYPAG; Allemagne; Da. 2009; Vol. 205; No. 2; Pp. 319-326; Bibl. 1 p.3/4AnglaisRationale Cannabis preparations are the most widely consumed illicit drugs, and their use typically begins in adolescence. The prevalence of cannabis abuse is higher in patients with attention deficit/hyperactivity disorder (ADHD) than in the general population, yet, knowledge about the motivational properties of cannabinoids in animal models of ADHD are lacking. Objective To compare the motivational effects of the synthetic cannabinoid agonist WIN55,212-2 (WIN) in adolescent and adult spontaneously hypertensive rats (SHR), a validated animal model of ADHD, and Wistar rats, representing a "normal" genetically heterogeneous population. We also asked whether the effects of WIN depended (1) on the activation of the cerebral subtype of cannabinoid receptors, namely, the CB1 cannabinoid receptor and (2) on putative changes by WIN in blood pressure. Methods WIN was tested under an unbiased conditioned place preference (CPP) paradigm. Blood pressure after WIN administration was also monitored in additional groups of rats. Results In the Wistar rats, WIN produced place aversion only in the adult but not adolescent rats. In contrast, WIN produced CPP in both adolescent and adult SHR rats. The behavioral effects of WIN were CB1-mediated and not related to blood pressure. Conclusion The contrasting effects of WIN in Wistar and SHR, and the higher resistance of adolescent rats to the aversive and rewarding effects of WIN in these two strains suggests that both adolescence and the ADHD-like profile exhibited by the SHR strain constitute factors that influence the motivational properties of cannabinoids.002B18D05; 002B12B05; 002B18C05ACannabinoïde; Préférence place conditionnée; Hypertension artérielle; Modèle animal; Rat; Trouble déficitaire de l'attention avec hyperactivité; Toxicomanie; Addiction; Adolescent; Dopamine; Récompense; Animal; Substance toxicomanogèneRodentia; Mammalia; Vertebrata; Homme; Pathologie de l'appareil circulatoire; Catécholamine; NeurotransmetteurCannabinoid; Conditioned place preference; Hypertension; Animal model; Rat; Attention disorder with hyperactivity; Drug addiction; Addiction; Adolescent; Dopamine; Reward; Animal; Drug of abuseRodentia; Mammalia; Vertebrata; Human; Cardiovascular disease; Catecholamine; NeurotransmitterCanabinoide; Preferencia sitio condicionada; Hipertensión arterial; Modelo animal; Rata; Trastorno por déficit de atención e hiperactividad; Toxicomanía; Adicción; Adolescente; Dopamina; Recompensa; Animal; Sustancia toxicomanógenaINIST-1761.35400018722836013009-0306381
000C81 Cytotoxic activity of Brazilian Cerrado plants used in traditional medicine against cancer cell linesMariana Laundry De MesquitaLaboratório de Farmacognosia, Universidade de BrasiliaBrasiliaBRA1 aut.9 aut.José Elias De PaulaLaboratório de Anatomia Vegetal, Instituto de Biologia, Universidade de BrasíliaBrasíliaBRA2 aut.Claudia PessoaDepartamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box-315760430-270, FortalezaBRA3 aut.4 aut.5 aut.Manoel Odorico De MoraesDepartamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box-315760430-270, FortalezaBRA3 aut.4 aut.5 aut.Leticia Veras Costa-LotufoDepartamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box-315760430-270, FortalezaBRA3 aut.4 aut.5 aut.Raphael GrougnetLaboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N 8638, Faculté des Sciences Pharmaceutiques et BiologiquesParisFRA6 aut.7 aut.8 aut.Sylvie MichelLaboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N 8638, Faculté des Sciences Pharmaceutiques et BiologiquesParisFRA6 aut.7 aut.8 aut.François TillequinLaboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N 8638, Faculté des Sciences Pharmaceutiques et BiologiquesParisFRA6 aut.7 aut.8 aut.Laila Salmen EspindolaLaboratório de Farmacognosia, Universidade de BrasiliaBrasiliaBRA1 aut.9 aut.09-03072792009PASCAL 09-0307279 INISTPascal:09-0307279001C980378-8741J. ethnopharmacol.Journal of ethnopharmacologyBrazilCytotoxicityEstablished cell lineFolk medicineIn vitroMedicinal plantPharmacognosyPlant originTumor cellCytotoxicitéBrésilPlante médicinaleMédecine traditionnelleCellule tumoraleLignée cellulaire établieIn vitroPharmacognosieOrigine végétale
The search for new anti-cancer drugs is one of the most prominent research areas of natural products. Numerous active compounds isolated from Brazilian Cerrado plant species have been studied with promising results. Aim of the study: To investigate the cytotoxic potential of 412 extracts from Brazilian Cerrado plants used in traditional medicine belonging to 21 families against tumor cell lines in culture. Material and method: Maceration of 50 plant species resulted in 412 hexane, dichloromethane, ethanol and hydroalcohol extracts. The cytotoxicity of the extracts was tested against human colon carcinoma (HCT-8), melanoma (MDA-MB-435), and brain (SF-295) tumor cell lines, using the thiazolyl blue test (MTT) assay. Bioassay-guided fractionation was performed for one active extract. Results and Conclusions: Twenty-eight of the 412 tested extracts demonstrated a substantial antiproliferative effect, at least 85% inhibition of cell proliferation at 50 μg/mL against one or more cell lines. Those extracts are obtained from different parts of Anacardiaceae, Annonaceae, Apocynaceae, Clusiaceae, Flacourtiaceae, Sapindaceae, Sapotaceae, Simaroubaceae and Zingiberaceae. Complete dose-response curves were generated and IC50 values were calculated for these active extracts against four cell lines HCT-8, MDA-MB-435, SF-295 and HL-60 (leukemia), and their direct cytotoxic effects were determined. In summary,14 extracts of 13 species showed toxicity in all tested tumor cell lines, with IC50 values ranging from 0.1 to 19.1 μg/mL. The strongest cytotoxic activity was found for the hexane extract of Casearia sylvestris var. lingua stem bark, with an IC50 of 0.1 μg/mL for HCT-8, 0.9 μg/mL for SF-295, 1.2 μg/mL for MDA-MB-435, and 1.3 μg/mL for HL-60, and Simarouba versicolor root bark, with an IC50 of 0.5 μg/mL for HCT-8, 0.7 μg/mL for SF-295,1.5 μg/mL for MDA-MB-435, 1.1 μg/mL for HL-60. Bioassay-guided fractionation of the last extract led to the isolation of glaucarubinone, which showed pronounced activity against the four cell lines studied. Further studies of the active extracts are necessary for chemical characterization of the active compounds and more extensive biological evaluations.
0378-8741JOETD7J. ethnopharmacol.1233Cytotoxic activity of Brazilian Cerrado plants used in traditional medicine against cancer cell linesLAUNDRY DE MESQUITA (Mariana)DE PAULA (José Elias)PESSOA (Claudia)ODORICO DE MORAES (Manoel)VERAS COSTA-LOTUFO (Leticia)GROUGNET (Raphael)MICHEL (Sylvie)TILLEQUIN (François)SALMEN ESPINDOLA (Laila)Laboratório de Farmacognosia, Universidade de BrasiliaBrasiliaBRA1 aut.9 aut.Laboratório de Anatomia Vegetal, Instituto de Biologia, Universidade de BrasíliaBrasíliaBRA2 aut.Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box-315760430-270, FortalezaBRA3 aut.4 aut.5 aut.Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N 8638, Faculté des Sciences Pharmaceutiques et BiologiquesParisFRA6 aut.7 aut.8 aut.439-4452009ENGINIST180283540001883958001100000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0307279PPRAJournal of ethnopharmacologyIRLThe search for new anti-cancer drugs is one of the most prominent research areas of natural products. Numerous active compounds isolated from Brazilian Cerrado plant species have been studied with promising results. Aim of the study: To investigate the cytotoxic potential of 412 extracts from Brazilian Cerrado plants used in traditional medicine belonging to 21 families against tumor cell lines in culture. Material and method: Maceration of 50 plant species resulted in 412 hexane, dichloromethane, ethanol and hydroalcohol extracts. The cytotoxicity of the extracts was tested against human colon carcinoma (HCT-8), melanoma (MDA-MB-435), and brain (SF-295) tumor cell lines, using the thiazolyl blue test (MTT) assay. Bioassay-guided fractionation was performed for one active extract. Results and Conclusions: Twenty-eight of the 412 tested extracts demonstrated a substantial antiproliferative effect, at least 85% inhibition of cell proliferation at 50 μg/mL against one or more cell lines. Those extracts are obtained from different parts of Anacardiaceae, Annonaceae, Apocynaceae, Clusiaceae, Flacourtiaceae, Sapindaceae, Sapotaceae, Simaroubaceae and Zingiberaceae. Complete dose-response curves were generated and IC50 values were calculated for these active extracts against four cell lines HCT-8, MDA-MB-435, SF-295 and HL-60 (leukemia), and their direct cytotoxic effects were determined. In summary,14 extracts of 13 species showed toxicity in all tested tumor cell lines, with IC50 values ranging from 0.1 to 19.1 μg/mL. The strongest cytotoxic activity was found for the hexane extract of Casearia sylvestris var. lingua stem bark, with an IC50 of 0.1 μg/mL for HCT-8, 0.9 μg/mL for SF-295, 1.2 μg/mL for MDA-MB-435, and 1.3 μg/mL for HL-60, and Simarouba versicolor root bark, with an IC50 of 0.5 μg/mL for HCT-8, 0.7 μg/mL for SF-295,1.5 μg/mL for MDA-MB-435, 1.1 μg/mL for HL-60. Bioassay-guided fractionation of the last extract led to the isolation of glaucarubinone, which showed pronounced activity against the four cell lines studied. Further studies of the active extracts are necessary for chemical characterization of the active compounds and more extensive biological evaluations.002B02A04Cytotoxicité01Cytotoxicity01Citotoxicidad01BrésilNG02BrazilNG02BrasilNG02Plante médicinale03Medicinal plant03Planta medicinal03Médecine traditionnelle04Folk medicine04Medicina tradicional04Cellule tumorale05Tumor cell05Célula tumoral05Lignée cellulaire établie06Established cell line06Línea celular establecida06In vitro07In vitro07In vitro07Pharmacognosie08Pharmacognosy08Farmacognosia08Origine végétale23Plant origin23Origen vegetal23Amérique du SudNGSouth AmericaNGAmerica del surNGAmériqueNGAmericaNGAmericaNG222OTOOTOPASCAL 09-0307279 INISTCytotoxic activity of Brazilian Cerrado plants used in traditional medicine against cancer cell linesLAUNDRY DE MESQUITA (Mariana); DE PAULA (José Elias); PESSOA (Claudia); ODORICO DE MORAES (Manoel); VERAS COSTA-LOTUFO (Leticia); GROUGNET (Raphael); MICHEL (Sylvie); TILLEQUIN (François); SALMEN ESPINDOLA (Laila)Laboratório de Farmacognosia, Universidade de Brasilia/Brasilia/Brésil (1 aut., 9 aut.); Laboratório de Anatomia Vegetal, Instituto de Biologia, Universidade de Brasília/Brasília/Brésil (2 aut.); Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box-3157/60430-270, Fortaleza/Brésil (3 aut., 4 aut., 5 aut.); Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N 8638, Faculté des Sciences Pharmaceutiques et Biologiques/Paris/France (6 aut., 7 aut., 8 aut.)
Publication en série; Papier de recherche; Niveau analytique
Journal of ethnopharmacology; ISSN 0378-8741; Coden JOETD7; Irlande; Da. 2009; Vol. 123; No. 3; Pp. 439-445; Bibl. 1 p.3/4AnglaisThe search for new anti-cancer drugs is one of the most prominent research areas of natural products. Numerous active compounds isolated from Brazilian Cerrado plant species have been studied with promising results. Aim of the study: To investigate the cytotoxic potential of 412 extracts from Brazilian Cerrado plants used in traditional medicine belonging to 21 families against tumor cell lines in culture. Material and method: Maceration of 50 plant species resulted in 412 hexane, dichloromethane, ethanol and hydroalcohol extracts. The cytotoxicity of the extracts was tested against human colon carcinoma (HCT-8), melanoma (MDA-MB-435), and brain (SF-295) tumor cell lines, using the thiazolyl blue test (MTT) assay. Bioassay-guided fractionation was performed for one active extract. Results and Conclusions: Twenty-eight of the 412 tested extracts demonstrated a substantial antiproliferative effect, at least 85% inhibition of cell proliferation at 50 μg/mL against one or more cell lines. Those extracts are obtained from different parts of Anacardiaceae, Annonaceae, Apocynaceae, Clusiaceae, Flacourtiaceae, Sapindaceae, Sapotaceae, Simaroubaceae and Zingiberaceae. Complete dose-response curves were generated and IC50 values were calculated for these active extracts against four cell lines HCT-8, MDA-MB-435, SF-295 and HL-60 (leukemia), and their direct cytotoxic effects were determined. In summary,14 extracts of 13 species showed toxicity in all tested tumor cell lines, with IC50 values ranging from 0.1 to 19.1 μg/mL. The strongest cytotoxic activity was found for the hexane extract of Casearia sylvestris var. lingua stem bark, with an IC50 of 0.1 μg/mL for HCT-8, 0.9 μg/mL for SF-295, 1.2 μg/mL for MDA-MB-435, and 1.3 μg/mL for HL-60, and Simarouba versicolor root bark, with an IC50 of 0.5 μg/mL for HCT-8, 0.7 μg/mL for SF-295,1.5 μg/mL for MDA-MB-435, 1.1 μg/mL for HL-60. Bioassay-guided fractionation of the last extract led to the isolation of glaucarubinone, which showed pronounced activity against the four cell lines studied. Further studies of the active extracts are necessary for chemical characterization of the active compounds and more extensive biological evaluations.002B02A04Cytotoxicité; Brésil; Plante médicinale; Médecine traditionnelle; Cellule tumorale; Lignée cellulaire établie; In vitro; Pharmacognosie; Origine végétaleAmérique du Sud; AmériqueCytotoxicity; Brazil; Medicinal plant; Folk medicine; Tumor cell; Established cell line; In vitro; Pharmacognosy; Plant originSouth America; AmericaCitotoxicidad; Brasil; Planta medicinal; Medicina tradicional; Célula tumoral; Línea celular establecida; In vitro; Farmacognosia; Origen vegetalINIST-18028.35400018839580011009-0307279
000C82 Marijuana Smoking and the Risk of Head and Neck Cancer: Pooled Analysis in the INHANCE ConsortiumJulien BerthillerIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.Yuan-Chin Amy LeeIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.Paolo BoffettaIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.QINGYI WEIUniversity of Texas M. D. Anderson Cancer CenterHouston, TexasUSA4 aut.5 aut.Erich M. SturgisUniversity of Texas M. D. Anderson Cancer CenterHouston, TexasUSA4 aut.5 aut.Sander GreenlandDepartment of Epidemiology, University of California, Los Angeles School of Public HealthUSA6 aut.8 aut.Department of Statistics, University of California at Los AngelesLos Angeles, CaliforniaUSA6 aut.Hal MorgensternDepartments of Epidemiology and Environmental Health Sciences, School of Public Health, and Comprehensive Cancer Center, University of MichiganAnn Arbor, MichiganUSA7 aut.Zuo-Feng ZhangDepartment of Epidemiology, University of California, Los Angeles School of Public HealthUSA6 aut.8 aut.Philip LazarusPenn State College of MedicineHershey, PennsylvaniaUSA9 aut.10 aut.Joshua MuscatPenn State College of MedicineHershey, PennsylvaniaUSA9 aut.10 aut.CHU CHENFred Hutchinson Cancer Research CenterSeattle, WashingtonUSA11 aut.12 aut.Stephen M. SchwartzFred Hutchinson Cancer Research CenterSeattle, WashingtonUSA11 aut.12 aut.José Eluf NetoUniversidade de Sao PauloSao PauloBRA13 aut.14 aut.Victor W Nsch FilhoUniversidade de Sao PauloSao PauloBRA13 aut.14 aut.Sergio KoifmanEscola Nacional de Saude PublicaRio de JaneiroBRA15 aut.Maria Paula CuradoIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.Hospital Araujo JorgeGoianiaBRA16 aut.Elena MatosInstitute of Oncology Angel H. Roffo, University of Buenos AiresBuenos AiresARG17 aut.Leticia FemandezInstitute of Oncology and RadiobiologyLa HavanaCUB18 aut.Ana MenezesUniversidade Federal de PelotasPelotasBRA19 aut.Alexander W. DaudtHospital de Clinicas de Porto AlegrePorto AlegreBRA20 aut.Gilles FerroIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.Paul BrennanIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.Mia HashibeIARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.09-03077892009PASCAL 09-0307789 INISTPascal:09-0307789001C971055-9965Cancer epidemiol. biomark. prev.Cancer epidemiology, biomarkers & preventionCancerologyCannabisDrug of abuseHashishHead and neck cancerMarijuanaPoolRiskRisk factorTobaccoTobacco smokingTabagismeMarijuanaCannabisCancer de la tête et du couHaschischSubstance toxicomanogèneTabacFacteur risqueRisquePoolCancérologie
Background: Marijuana contains carcinogens similar to tobacco smoke and has been suggested by relatively small studies to increase the risk of head and neck cancer (HNC). Because tobacco is a major risk factor for HNC, large studies with substantial numbers of never tobacco users could help to clarify whether marijuana smoking is independently associated with HNC risk. Methods: We pooled self-reported interview data on marijuana smoking and known HNC risk factors on 4,029 HNC cases and 5,015 controls from five case-control studies within the INHANCE Consortium. Subanalyses were conducted among never tobacco users (493 cases and 1,813 controls) and among individuals who did not consume alcohol or smoke tobacco (237 cases and 887 controls). Results: The risk of HNC was not elevated by ever marijuana smoking [odds ratio (OR), 0.88; 95% confidence intervals (95% CI), 0.67-1.16], and there was no increasing risk associated with increasing frequency, duration, or cumulative consumption of marijuana smoking. An increased risk of HNC associated with marijuana use was not detected among never tobacco users (OR, 0.93; 95% CI, 0.63-1.37; three studies) nor among individuals who did not drink alcohol and smoke tobacco (OR, 1.06; 95% CI, 0.47-2.38; two studies). Conclusion: Our results are consistent with the notion that infrequent marijuana smoking does not confer a risk of these malignancies. Nonetheless, because the prevalence of frequent marijuana smoking was low in most of the contributing studies, we could not rule out a moderately increased risk, particularly among subgroups without exposure to tobacco and alcohol.
1055-9965CEBPE4Cancer epidemiol. biomark. prev.185Marijuana Smoking and the Risk of Head and Neck Cancer: Pooled Analysis in the INHANCE ConsortiumBERTHILLER (Julien)LEE (Yuan-Chin Amy)BOFFETTA (Paolo)QINGYI WEISTURGIS (Erich M.)GREENLAND (Sander)MORGENSTERN (Hal)ZHANG (Zuo-Feng)LAZARUS (Philip)MUSCAT (Joshua)CHU CHENSCHWARTZ (Stephen M.)ELUF NETO (José)WÜNSCH FILHO (Victor)KOIFMAN (Sergio)CURADO (Maria Paula)MATOS (Elena)FEMANDEZ (Leticia)MENEZES (Ana)DAUDT (Alexander W.)FERRO (Gilles)BRENNAN (Paul)HASHIBE (Mia)IARCLyonFRA1 aut.2 aut.3 aut.16 aut.21 aut.22 aut.23 aut.University of Texas M. D. Anderson Cancer CenterHouston, TexasUSA4 aut.5 aut.Department of Epidemiology, University of California, Los Angeles School of Public HealthUSA6 aut.8 aut.Department of Statistics, University of California at Los AngelesLos Angeles, CaliforniaUSA6 aut.Departments of Epidemiology and Environmental Health Sciences, School of Public Health, and Comprehensive Cancer Center, University of MichiganAnn Arbor, MichiganUSA7 aut.Penn State College of MedicineHershey, PennsylvaniaUSA9 aut.10 aut.Fred Hutchinson Cancer Research CenterSeattle, WashingtonUSA11 aut.12 aut.Universidade de Sao PauloSao PauloBRA13 aut.14 aut.Escola Nacional de Saude PublicaRio de JaneiroBRA15 aut.Hospital Araujo JorgeGoianiaBRA16 aut.Institute of Oncology Angel H. Roffo, University of Buenos AiresBuenos AiresARG17 aut.Institute of Oncology and RadiobiologyLa HavanaCUB18 aut.Universidade Federal de PelotasPelotasBRA19 aut.Hospital de Clinicas de Porto AlegrePorto AlegreBRA20 aut.1544-15512009ENGINIST266373540001884083602900000© 2009 INIST-CNRS. All rights reserved.21 ref.09-0307789PACancer epidemiology, biomarkers & preventionUSABackground: Marijuana contains carcinogens similar to tobacco smoke and has been suggested by relatively small studies to increase the risk of head and neck cancer (HNC). Because tobacco is a major risk factor for HNC, large studies with substantial numbers of never tobacco users could help to clarify whether marijuana smoking is independently associated with HNC risk. Methods: We pooled self-reported interview data on marijuana smoking and known HNC risk factors on 4,029 HNC cases and 5,015 controls from five case-control studies within the INHANCE Consortium. Subanalyses were conducted among never tobacco users (493 cases and 1,813 controls) and among individuals who did not consume alcohol or smoke tobacco (237 cases and 887 controls). Results: The risk of HNC was not elevated by ever marijuana smoking [odds ratio (OR), 0.88; 95% confidence intervals (95% CI), 0.67-1.16], and there was no increasing risk associated with increasing frequency, duration, or cumulative consumption of marijuana smoking. An increased risk of HNC associated with marijuana use was not detected among never tobacco users (OR, 0.93; 95% CI, 0.63-1.37; three studies) nor among individuals who did not drink alcohol and smoke tobacco (OR, 1.06; 95% CI, 0.47-2.38; two studies). Conclusion: Our results are consistent with the notion that infrequent marijuana smoking does not confer a risk of these malignancies. Nonetheless, because the prevalence of frequent marijuana smoking was low in most of the contributing studies, we could not rule out a moderately increased risk, particularly among subgroups without exposure to tobacco and alcohol.002B04002B03ETabagisme01Tobacco smoking01Tabaquismo01MarijuanaNKFX02MarijuanaNKFX02MarihuanaNKFX02CannabisNS03CannabisNS03CannabisNS03Cancer de la tête et du couNM04Head and neck cancerNM04Cáncer de cabeza y cuelloNM04Haschisch05Hashish05Hachís05Substance toxicomanogène06Drug of abuse06Sustancia toxicomanógena06TabacFX08TobaccoFX08TabacoFX08Facteur risque09Risk factor09Factor riesgo09Risque11Risk11Riesgo11Pool12Pool12Pool12Cancérologie17Cancerology17Cancerología17CannabidaceaeNSCannabidaceaeNSCannabidaceaeNSDicotyledonesNSDicotyledonesNSDicotyledonesNSAngiospermaeNSAngiospermaeNSAngiospermaeNSSpermatophytaNSSpermatophytaNSSpermatophytaNSPathologie ORL37ENT disease37ORL patología37Tumeur maligneNM38Malignant tumorNM38Tumor malignoNM38CancerNMCancerNMCáncerNM222OTOOTOPASCAL 09-0307789 INISTMarijuana Smoking and the Risk of Head and Neck Cancer: Pooled Analysis in the INHANCE ConsortiumBERTHILLER (Julien); LEE (Yuan-Chin Amy); BOFFETTA (Paolo); QINGYI WEI; STURGIS (Erich M.); GREENLAND (Sander); MORGENSTERN (Hal); ZHANG (Zuo-Feng); LAZARUS (Philip); MUSCAT (Joshua); CHU CHEN; SCHWARTZ (Stephen M.); ELUF NETO (José); WÜNSCH FILHO (Victor); KOIFMAN (Sergio); CURADO (Maria Paula); MATOS (Elena); FEMANDEZ (Leticia); MENEZES (Ana); DAUDT (Alexander W.); FERRO (Gilles); BRENNAN (Paul); HASHIBE (Mia)IARC/Lyon/France (1 aut., 2 aut., 3 aut., 16 aut., 21 aut., 22 aut., 23 aut.); University of Texas M. D. Anderson Cancer Center/Houston, Texas/Etats-Unis (4 aut., 5 aut.); Department of Epidemiology, University of California, Los Angeles School of Public Health/Etats-Unis (6 aut., 8 aut.); Department of Statistics, University of California at Los Angeles/Los Angeles, California/Etats-Unis (6 aut.); Departments of Epidemiology and Environmental Health Sciences, School of Public Health, and Comprehensive Cancer Center, University of Michigan/Ann Arbor, Michigan/Etats-Unis (7 aut.); Penn State College of Medicine/Hershey, Pennsylvania/Etats-Unis (9 aut., 10 aut.); Fred Hutchinson Cancer Research Center/Seattle, Washington/Etats-Unis (11 aut., 12 aut.); Universidade de Sao Paulo/Sao Paulo/Brésil (13 aut., 14 aut.); Escola Nacional de Saude Publica/Rio de Janeiro/Brésil (15 aut.); Hospital Araujo Jorge/Goiania/Brésil (16 aut.); Institute of Oncology Angel H. Roffo, University of Buenos Aires/Buenos Aires/Argentine (17 aut.); Institute of Oncology and Radiobiology/La Havana/Cuba (18 aut.); Universidade Federal de Pelotas/Pelotas/Brésil (19 aut.); Hospital de Clinicas de Porto Alegre/Porto Alegre/Brésil (20 aut.)
Publication en série; Niveau analytique
Cancer epidemiology, biomarkers & prevention; ISSN 1055-9965; Coden CEBPE4; Etats-Unis; Da. 2009; Vol. 18; No. 5; Pp. 1544-1551; Bibl. 21 ref.AnglaisBackground: Marijuana contains carcinogens similar to tobacco smoke and has been suggested by relatively small studies to increase the risk of head and neck cancer (HNC). Because tobacco is a major risk factor for HNC, large studies with substantial numbers of never tobacco users could help to clarify whether marijuana smoking is independently associated with HNC risk. Methods: We pooled self-reported interview data on marijuana smoking and known HNC risk factors on 4,029 HNC cases and 5,015 controls from five case-control studies within the INHANCE Consortium. Subanalyses were conducted among never tobacco users (493 cases and 1,813 controls) and among individuals who did not consume alcohol or smoke tobacco (237 cases and 887 controls). Results: The risk of HNC was not elevated by ever marijuana smoking [odds ratio (OR), 0.88; 95% confidence intervals (95% CI), 0.67-1.16], and there was no increasing risk associated with increasing frequency, duration, or cumulative consumption of marijuana smoking. An increased risk of HNC associated with marijuana use was not detected among never tobacco users (OR, 0.93; 95% CI, 0.63-1.37; three studies) nor among individuals who did not drink alcohol and smoke tobacco (OR, 1.06; 95% CI, 0.47-2.38; two studies). Conclusion: Our results are consistent with the notion that infrequent marijuana smoking does not confer a risk of these malignancies. Nonetheless, because the prevalence of frequent marijuana smoking was low in most of the contributing studies, we could not rule out a moderately increased risk, particularly among subgroups without exposure to tobacco and alcohol.002B04; 002B03ETabagisme; Marijuana; Cannabis; Cancer de la tête et du cou; Haschisch; Substance toxicomanogène; Tabac; Facteur risque; Risque; Pool; CancérologieCannabidaceae; Dicotyledones; Angiospermae; Spermatophyta; Pathologie ORL; Tumeur maligne; CancerTobacco smoking; Marijuana; Cannabis; Head and neck cancer; Hashish; Drug of abuse; Tobacco; Risk factor; Risk; Pool; CancerologyCannabidaceae; Dicotyledones; Angiospermae; Spermatophyta; ENT disease; Malignant tumor; CancerTabaquismo; Marihuana; Cannabis; Cáncer de cabeza y cuello; Hachís; Sustancia toxicomanógena; Tabaco; Factor riesgo; Riesgo; Pool; CancerologíaINIST-26637.35400018840836029009-0307789
000C83 Microstructure evolution in copper under severe plastic deformation detected by in situ X-ray diffraction using monochromatic synchrotron lightA. R. KilmametovInstitute of Physics of Advonced Materials, Ufa State Aviation Technical University, K. Marx St. 12Ufa 450000RUS1 aut.6 aut.G. VaughanEuropean Synchrotron Radiation Facilities ESRFGrenobleFRA2 aut.A. R. YavariEuronano, LTPCM-CNRS umr 5614, Institut National Polytechnique de Grenoble38402 St-Martin-d'HèresFRA3 aut.4 aut.A. LemoulecEuronano, LTPCM-CNRS umr 5614, Institut National Polytechnique de Grenoble38402 St-Martin-d'HèresFRA3 aut.4 aut.W. J. BottaDepto. Engenharia de Materiais, Universidade Federal de São Carlos (UFSCar), SP, Brazil. 3UNIVA, Av. Shishima Hifumi2911 São Jose dos Campos, SPBRA5 aut.R. Z. ValievInstitute of Physics of Advonced Materials, Ufa State Aviation Technical University, K. Marx St. 12Ufa 450000RUS1 aut.6 aut.09-03088292009PASCAL 09-0308829 INISTPascal:09-0308829001C960921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.Materials science & engineering. A, Structural materials : properties, microstructure and processingCopperCrystal defectsCyclic loadsHigh pressure torsionHigh strainMicrostructureMonochromatic radiationPlastic deformationSynchrotron radiationTransition elementsVacancy densityXRDMicrostructureGrande déformationDéformation plastiqueDiffraction RXRayonnement monochromatiqueRayonnement synchrotronCharge cycliqueDéfaut cristallinDensité lacuneCuivreMétal transition8140LTorsion sous haute pression
Microstructure evolution in severely deformed Cu has been investigated using high-energy synchrotron light during in situ high-pressure torsion (HPT) at room temperature. Relative changes in broadening of Bragg peaks and crystal lattice expansion were studied in the loading-unloading regime of torsion straining. Experimental results revealed fast relaxation (on the order of hundred of seconds) that occurred due to annihilation of HPT-induced crystal lattice defects, which were generated directly during deformation. The kinetics of relaxation is probably diffusion-controlled; therefore, the enhanced diffusivity can be explained by extremely high excess vacancy concentration, which is usually achieved at thermal equilibrium near the melting point.
0921-5093Mater. sci. eng. A Struct. mater. prop. microstruct. proces.5031-2Microstructure evolution in copper under severe plastic deformation detected by in situ X-ray diffraction using monochromatic synchrotron lightInternational Symposium on Bulk Nanostructured Materials: from Fundamentals to Innovation, BNM 2007KILMAMETOV (A. R.)VAUGHAN (G.)YAVARI (A. R.)LEMOULEC (A.)BOTTA (W. J.)VALIEV (R. Z.)VALIEV (Ruslan Z.)ed.LANGDON (Terence G.)ed.ALEXANDROV (Igor V.)ed.ZHU (Yuntian T.)ed.ESTRIN (Yuri)ed.KOSTORZ (Gernot)ed.Institute of Physics of Advonced Materials, Ufa State Aviation Technical University, K. Marx St. 12Ufa 450000RUS1 aut.6 aut.European Synchrotron Radiation Facilities ESRFGrenobleFRA2 aut.Euronano, LTPCM-CNRS umr 5614, Institut National Polytechnique de Grenoble38402 St-Martin-d'HèresFRA3 aut.4 aut.Depto. Engenharia de Materiais, Universidade Federal de São Carlos (UFSCar), SP, Brazil. 3UNIVA, Av. Shishima Hifumi2911 São Jose dos Campos, SPBRA5 aut.Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, K. Marx St. 12Ufa 450000RUS1 aut.Departments of Aerospace & Mechanical Engineering and Materials Sience, University of Southern CaliforniaLos Angeles, CA 90089-1453USA2 aut.Institute of Physics of Advanced Materials and Department of Physics, Ufa State Aviation Technical, K. Marx St. 12Ufa 450000RUS3 aut.Department of Materials Science & Engineering, North Carolina State UniversityRaleigh, NC 27695-7919USA4 aut.ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering, Monash University and CSIRO Division of Materials Science and EngineeringClayton, VIC 3800AUS5 aut.Department of Physics, ETH Zurich8093 ZurichCHE6 aut.Ufa State Aviation Technical UniversityUfaRUSorg-cong.10-132009ENGINIST12899A3540001878979300200000© 2009 INIST-CNRS. All rights reserved.27 ref.09-0308829PCAMaterials science & engineering. A, Structural materials : properties, microstructure and processingNLDMicrostructure evolution in severely deformed Cu has been investigated using high-energy synchrotron light during in situ high-pressure torsion (HPT) at room temperature. Relative changes in broadening of Bragg peaks and crystal lattice expansion were studied in the loading-unloading regime of torsion straining. Experimental results revealed fast relaxation (on the order of hundred of seconds) that occurred due to annihilation of HPT-induced crystal lattice defects, which were generated directly during deformation. The kinetics of relaxation is probably diffusion-controlled; therefore, the enhanced diffusivity can be explained by extremely high excess vacancy concentration, which is usually achieved at thermal equilibrium near the melting point.001B80A40LMicrostructure02Microstructure02Grande déformation03High strain03Gran deformación03Déformation plastique04Plastic deformation04Diffraction RX05XRD05Rayonnement monochromatique06Monochromatic radiation06Rayonnement synchrotron07Synchrotron radiation07Charge cyclique08Cyclic loads08Défaut cristallin09Crystal defects09Densité lacune13Vacancy density13Densidad vacuidad13CuivreNC15CopperNC15Métal transition48Transition elements488140LINC56Torsion sous haute pressionCD96High pressure torsionCD96222International Symposium on Bulk Nanostructured Materials: from Fundamentals to Innovation, BNM 2007Ufa RUS2007-08-14PASCAL 09-0308829 INISTMicrostructure evolution in copper under severe plastic deformation detected by in situ X-ray diffraction using monochromatic synchrotron lightKILMAMETOV (A. R.); VAUGHAN (G.); YAVARI (A. R.); LEMOULEC (A.); BOTTA (W. J.); VALIEV (R. Z.); VALIEV (Ruslan Z.); LANGDON (Terence G.); ALEXANDROV (Igor V.); ZHU (Yuntian T.); ESTRIN (Yuri); KOSTORZ (Gernot)Institute of Physics of Advonced Materials, Ufa State Aviation Technical University, K. Marx St. 12/Ufa 450000/Russie (1 aut., 6 aut.); European Synchrotron Radiation Facilities ESRF/Grenoble/France (2 aut.); Euronano, LTPCM-CNRS umr 5614, Institut National Polytechnique de Grenoble/38402 St-Martin-d'Hères/France (3 aut., 4 aut.); Depto. Engenharia de Materiais, Universidade Federal de São Carlos (UFSCar), SP, Brazil. 3UNIVA, Av. Shishima Hifumi/2911 São Jose dos Campos, SP/Brésil (5 aut.); Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, K. Marx St. 12/Ufa 450000/Russie (1 aut.); Departments of Aerospace & Mechanical Engineering and Materials Sience, University of Southern California/Los Angeles, CA 90089-1453/Etats-Unis (2 aut.); Institute of Physics of Advanced Materials and Department of Physics, Ufa State Aviation Technical, K. Marx St. 12/Ufa 450000/Russie (3 aut.); Department of Materials Science & Engineering, North Carolina State University/Raleigh, NC 27695-7919/Etats-Unis (4 aut.); ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering, Monash University and CSIRO Division of Materials Science and Engineering/Clayton, VIC 3800/Australie (5 aut.); Department of Physics, ETH Zurich/8093 Zurich/Suisse (6 aut.)
Publication en série; Congrès; Niveau analytique
Materials science & engineering. A, Structural materials : properties, microstructure and processing; ISSN 0921-5093; Pays-Bas; Da. 2009; Vol. 503; No. 1-2; Pp. 10-13; Bibl. 27 ref.AnglaisMicrostructure evolution in severely deformed Cu has been investigated using high-energy synchrotron light during in situ high-pressure torsion (HPT) at room temperature. Relative changes in broadening of Bragg peaks and crystal lattice expansion were studied in the loading-unloading regime of torsion straining. Experimental results revealed fast relaxation (on the order of hundred of seconds) that occurred due to annihilation of HPT-induced crystal lattice defects, which were generated directly during deformation. The kinetics of relaxation is probably diffusion-controlled; therefore, the enhanced diffusivity can be explained by extremely high excess vacancy concentration, which is usually achieved at thermal equilibrium near the melting point.001B80A40LMicrostructure; Grande déformation; Déformation plastique; Diffraction RX; Rayonnement monochromatique; Rayonnement synchrotron; Charge cyclique; Défaut cristallin; Densité lacune; Cuivre; Métal transition; 8140L; Torsion sous haute pressionMicrostructure; High strain; Plastic deformation; XRD; Monochromatic radiation; Synchrotron radiation; Cyclic loads; Crystal defects; Vacancy density; Copper; Transition elements; High pressure torsionGran deformación; Densidad vacuidadINIST-12899A.35400018789793002009-0308829
000C84 Microwave and infrared dielectric properties of Sr<sub>1-3x/2</sub>Ce<sub>x</sub>TiO<sub>3</sub> (x = 0.154-0.400) incipient ferroelectrics at cryogenic temperaturesRoberto L. MoreiraDepartamento de Física, ICEx, Universidade Federal de Minas Gerais, CP 702Belo Horizonte MG, 30123-970BRA1 aut.Ricardo P. S. M. LoboLaboratoire Photons et Matière (CNRS -UPR5), ESPCI, Université Pierre et Marie Curie, 10 rue Vauquelin75231 ParisFRA2 aut.Ganesanpotti SubodhMaterials and Minerals Division, NIISTTrivandrum-695 019IND3 aut.4 aut.Mailadil T. SebastianMaterials and Minerals Division, NIISTTrivandrum-695 019IND3 aut.4 aut.Mohan V. JacobElectronic Material Research Lab, School of Engineering, James Cook UniversityTownsville, QLD, 4811AUS5 aut.Anderson DiasDepartamento de Química, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, ICEB IIOuro Preto-MG, 35400-000BRA6 aut.09-03119902009PASCAL 09-0311990 INISTPascal:09-0311990001C950022-3727J. phys., D. Appl. phys. : (Print)Journal of physics. D, Applied physics : (Print)Cerium Strontium Titanates MixedChemical compositionCoolingCryogenic temperatureDielectric lossesDielectric propertiesDielectric susceptibilityInfrared spectraMicrowave radiationPermittivityReflection spectrumSoft modesTemperature effectsHyperfréquencePropriété diélectriqueTempérature cryogéniqueConstante diélectriqueEffet températureSusceptibilité diélectriquePerte diélectriqueRefroidissementSpectre IRSpectre réflexionMode mouComposition chimiqueCérium Strontium Titanate Mixte
Sr1-3x/2CexTiO3 (x = 0.154-0.400) or Sr2+nCe2Ti5+nO15+3n (n ≤8) ceramics were prepared by the mixed oxide route. The microwave (MW) dielectric properties of the compounds were investigated in the temperature range from 8 to 295 K. The permittivity increases for decreasing temperatures and saturates below 30 K, following Barrett's equation, demonstrating the incipient ferroelectric nature of the investigated materials. The dielectric loss tangent decreases for decreasing temperatures, reaching a minimum at about 80-120 K, and again increases with further cooling due to the rotations of TiO6 octahedra. Infrared-reflectivity data show that the dielectric response of the system is driven by the lowest-frequency polar (soft) mode, particularly at lower temperatures, where the phonons become practically uncoupled. The results help us to understand why Sr1-3x/2CexTiO3 materials present more appropriate dielectric properties for MW tunable applications, compared with pure SrTiO3.
0022-3727JPAPBEJ. phys., D. Appl. phys. : (Print)427Microwave and infrared dielectric properties of Sr1-3x/2CexTiO3 (x = 0.154-0.400) incipient ferroelectrics at cryogenic temperaturesMOREIRA (Roberto L.)LOBO (Ricardo P. S. M.)SUBODH (Ganesanpotti)SEBASTIAN (Mailadil T.)JACOB (Mohan V.)DIAS (Anderson)Departamento de Física, ICEx, Universidade Federal de Minas Gerais, CP 702Belo Horizonte MG, 30123-970BRA1 aut.Laboratoire Photons et Matière (CNRS -UPR5), ESPCI, Université Pierre et Marie Curie, 10 rue Vauquelin75231 ParisFRA2 aut.Materials and Minerals Division, NIISTTrivandrum-695 019IND3 aut.4 aut.Electronic Material Research Lab, School of Engineering, James Cook UniversityTownsville, QLD, 4811AUS5 aut.Departamento de Química, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, ICEB IIOuro Preto-MG, 35400-000BRA6 aut.075411.1-075411.82009ENGINIST58413540001867626304400000© 2009 INIST-CNRS. All rights reserved.28 ref.09-0311990PAJournal of physics. D, Applied physics : (Print)GBRSr1-3x/2CexTiO3 (x = 0.154-0.400) or Sr2+nCe2Ti5+nO15+3n (n ≤8) ceramics were prepared by the mixed oxide route. The microwave (MW) dielectric properties of the compounds were investigated in the temperature range from 8 to 295 K. The permittivity increases for decreasing temperatures and saturates below 30 K, following Barrett's equation, demonstrating the incipient ferroelectric nature of the investigated materials. The dielectric loss tangent decreases for decreasing temperatures, reaching a minimum at about 80-120 K, and again increases with further cooling due to the rotations of TiO6 octahedra. Infrared-reflectivity data show that the dielectric response of the system is driven by the lowest-frequency polar (soft) mode, particularly at lower temperatures, where the phonons become practically uncoupled. The results help us to understand why Sr1-3x/2CexTiO3 materials present more appropriate dielectric properties for MW tunable applications, compared with pure SrTiO3.001B70G22C001B70G22G001B70H30HHyperfréquence02Microwave radiation02Propriété diélectrique03Dielectric properties03Température cryogénique04Cryogenic temperature04Temperatura criogénica04Constante diélectrique05Permittivity05Effet température06Temperature effects06Susceptibilité diélectrique07Dielectric susceptibility07Susceptibilidad dieléctrica07Perte diélectrique08Dielectric losses08Refroidissement09Cooling09Spectre IR10Infrared spectra10Spectre réflexion11Reflection spectrum11Espectro reflexión11Mode mou12Soft modes12Composition chimique13Chemical composition13Cérium Strontium Titanate MixteNCNA14Cerium Strontium Titanates MixedNCNA14MixtoNCNA14222PASCAL 09-0311990 INISTMicrowave and infrared dielectric properties of Sr1-3x/2CexTiO3 (x = 0.154-0.400) incipient ferroelectrics at cryogenic temperaturesMOREIRA (Roberto L.); LOBO (Ricardo P. S. M.); SUBODH (Ganesanpotti); SEBASTIAN (Mailadil T.); JACOB (Mohan V.); DIAS (Anderson)Departamento de Física, ICEx, Universidade Federal de Minas Gerais, CP 702/Belo Horizonte MG, 30123-970/Brésil (1 aut.); Laboratoire Photons et Matière (CNRS -UPR5), ESPCI, Université Pierre et Marie Curie, 10 rue Vauquelin/75231 Paris/France (2 aut.); Materials and Minerals Division, NIIST/Trivandrum-695 019/Inde (3 aut., 4 aut.); Electronic Material Research Lab, School of Engineering, James Cook University/Townsville, QLD, 4811/Australie (5 aut.); Departamento de Química, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, ICEB II/Ouro Preto-MG, 35400-000/Brésil (6 aut.)
Publication en série; Niveau analytique
Journal of physics. D, Applied physics : (Print); ISSN 0022-3727; Coden JPAPBE; Royaume-Uni; Da. 2009; Vol. 42; No. 7; 075411.1-075411.8; Bibl. 28 ref.AnglaisSr1-3x/2CexTiO3 (x = 0.154-0.400) or Sr2+nCe2Ti5+nO15+ 3n (n ≤8) ceramics were prepared by the mixed oxide route. The microwave (MW) dielectric properties of the compounds were investigated in the temperature range from 8 to 295 K. The permittivity increases for decreasing temperatures and saturates below 30 K, following Barrett's equation, demonstrating the incipient ferroelectric nature of the investigated materials. The dielectric loss tangent decreases for decreasing temperatures, reaching a minimum at about 80-120 K, and again increases with further cooling due to the rotations of TiO6 octahedra. Infrared-reflectivity data show that the dielectric response of the system is driven by the lowest-frequency polar (soft) mode, particularly at lower temperatures, where the phonons become practically uncoupled. The results help us to understand why Sr1-3x/2CexTiO3 materials present more appropriate dielectric properties for MW tunable applications, compared with pure SrTiO3.001B70G22C; 001B70G22G; 001B70H30HHyperfréquence; Propriété diélectrique; Température cryogénique; Constante diélectrique; Effet température; Susceptibilité diélectrique; Perte diélectrique; Refroidissement; Spectre IR; Spectre réflexion; Mode mou; Composition chimique; Cérium Strontium Titanate MixteMicrowave radiation; Dielectric properties; Cryogenic temperature; Permittivity; Temperature effects; Dielectric susceptibility; Dielectric losses; Cooling; Infrared spectra; Reflection spectrum; Soft modes; Chemical composition; Cerium Strontium Titanates MixedTemperatura criogénica; Susceptibilidad dieléctrica; Espectro reflexión; MixtoINIST-5841.35400018676263044009-0311990
000C85 Effect of Telmisartan on Renal Outcomes: A Randomized TrialJohannes F. E. MannSchwabing General Hospital and KfH Kidney Center, Ludwig Maximilians UniversityMunichDEUFriedrich Alexander UniversityErlangenDEUPopulation Health Research Institute, McMaster UniversityHamilton, OntarioCANBoehringer IngelheimIngelheimDEUBeijing Hypertension League InstituteBeijingCHNUniversity of WashingtonSeattle, WashingtonUSADante Pazzanese Institute of CardiologySão PauloBRAUniversity of GuadalajaraGuadalajaraMEXInstitute of Cardiology and Pneumology, Laval University and HospitalQuebec, QuebecCANUniversity of Buenos AiresBuenos AiresARGHeart Institute, University of OttawaOttawa, OntarioCANUniversity of GrenobleGrenobleFRAKarolinska InstitutetStockholmSWEPrince of Wales Hospital, Chinese University of Hong KongHKGRoland E. SchmiederLeanne DyalMatthew J. McqueenHelmut SchumacherJanice PogueXINGYU WANGJeffrey L. ProbstfieldAlvaro AvezumErnesto Cardona-MunozGilles R. DagenaisRafael DiazGeorge FodorJean M. MaillonLars RydenCheuk M. YuKoon K. TeoSalim Yusuf09-03127882009PASCAL 09-0312788 INISTPascal:09-0312788001C940003-4819Ann. intern. med.Annals of internal medicineAntihypertensive agentClinical trialEvolutionHumanKidneyMedicinePrognosisRandomizationTelmisartanTelmisartanReinEvolutionPronosticEssai cliniqueRandomisationMédecineHommeAntihypertenseur
Background: Angiotensin-receptor blockers (ARBs) blunt progression of advanced diabetic nephropathy, but their long-term renal effects in other patients are not clear. Objective: To examine the long-term renal effects of telmisartan versus placebo in adults at high vascular risk. Design: Randomized trial. Patients were randomly assigned by a central automated system between November 2001 and May 2004 and were followed until March 2008. Participants and investigators were blinded to intervention status. Setting: Multicenter, multinational study. Patients: 5927 adults with known cardiovascular disease or diabetes with end-organ damage but without macroalbuminuria or heart failure who cannot tolerate angiotensin-converting enzyme inhibitors. Intervention: Telmisartan, 80 mg/d (n = 2954), or matching placebo (n = 2972) plus standard treatment for a mean of 56 months. Measurements: Composite renal outcome of dialysis or doubling of serum creatinine, changes in estimated glomerular filtration rate (GFR), and changes in albuminuria. Results: No important difference was found in the composite renal outcome with telmisartan (58 patients [1.96%]) versus placebo (46 patients [1.55%]) (hazard ratio, 1.29 [95% CI, 0.87 to 1.89]; P = 0.20). Among the telmisartan and placebo groups, 7 and 10 patients had dialysis and 56 and 36 patients had doubling of serum creatinine, respectively (hazard ratio, 1.59 [CI, 1.04 to 2.41]; P = 0.031). Albuminuria increased less with telmisartan than with placebo (32% [CI, 23% to 41%] vs. 63% [CI, 52% to 76%]; P < 0.001). Decreases in estimated GFR were greater with telmisartan than with placebo (mean change in estimated GFR, -3.2 mL/min per 1.73 m2 [SD, 18.3] vs. -0.26 mL/min per 1.73 m2 [SD, 18.0]; P < 0.001). Limitation: Only 17 participants had dialysis. Conclusion: In adults with vascular disease but without macroalbuminuria, the effects of telmisartan on major renal outcomes were similar to those of placebo. Primary Funding Source: Boehringer Ingelheim.
0003-4819AIMEASAnn. intern. med.1511Effect of Telmisartan on Renal Outcomes: A Randomized TrialMANN (Johannes F. E.)SCHMIEDER (Roland E.)DYAL (Leanne)MCQUEEN (Matthew J.)SCHUMACHER (Helmut)POGUE (Janice)XINGYU WANGPROBSTFIELD (Jeffrey L.)AVEZUM (Alvaro)CARDONA-MUNOZ (Ernesto)DAGENAIS (Gilles R.)DIAZ (Rafael)FODOR (George)MAILLON (Jean M.)RYDEN (Lars)YU (Cheuk M.)TEO (Koon K.)YUSUF (Salim)Schwabing General Hospital and KfH Kidney Center, Ludwig Maximilians UniversityMunichDEUFriedrich Alexander UniversityErlangenDEUPopulation Health Research Institute, McMaster UniversityHamilton, OntarioCANBoehringer IngelheimIngelheimDEUBeijing Hypertension League InstituteBeijingCHNUniversity of WashingtonSeattle, WashingtonUSADante Pazzanese Institute of CardiologySão PauloBRAUniversity of GuadalajaraGuadalajaraMEXInstitute of Cardiology and Pneumology, Laval University and HospitalQuebec, QuebecCANUniversity of Buenos AiresBuenos AiresARGHeart Institute, University of OttawaOttawa, OntarioCANUniversity of GrenobleGrenobleFRAKarolinska InstitutetStockholmSWEPrince of Wales Hospital, Chinese University of Hong KongHKGTRANSCEND (Telmisartan Randomised Assessment Study in ACE Intolerant Subjects with Cardiovascular Disease) InvestigatorsINC1-102009ENGINIST20143540001879924800100000© 2009 INIST-CNRS. All rights reserved.22 ref.09-0312788PAAnnals of internal medicineUSABackground: Angiotensin-receptor blockers (ARBs) blunt progression of advanced diabetic nephropathy, but their long-term renal effects in other patients are not clear. Objective: To examine the long-term renal effects of telmisartan versus placebo in adults at high vascular risk. Design: Randomized trial. Patients were randomly assigned by a central automated system between November 2001 and May 2004 and were followed until March 2008. Participants and investigators were blinded to intervention status. Setting: Multicenter, multinational study. Patients: 5927 adults with known cardiovascular disease or diabetes with end-organ damage but without macroalbuminuria or heart failure who cannot tolerate angiotensin-converting enzyme inhibitors. Intervention: Telmisartan, 80 mg/d (n = 2954), or matching placebo (n = 2972) plus standard treatment for a mean of 56 months. Measurements: Composite renal outcome of dialysis or doubling of serum creatinine, changes in estimated glomerular filtration rate (GFR), and changes in albuminuria. Results: No important difference was found in the composite renal outcome with telmisartan (58 patients [1.96%]) versus placebo (46 patients [1.55%]) (hazard ratio, 1.29 [95% CI, 0.87 to 1.89]; P = 0.20). Among the telmisartan and placebo groups, 7 and 10 patients had dialysis and 56 and 36 patients had doubling of serum creatinine, respectively (hazard ratio, 1.59 [CI, 1.04 to 2.41]; P = 0.031). Albuminuria increased less with telmisartan than with placebo (32% [CI, 23% to 41%] vs. 63% [CI, 52% to 76%]; P < 0.001). Decreases in estimated GFR were greater with telmisartan than with placebo (mean change in estimated GFR, -3.2 mL/min per 1.73 m2 [SD, 18.3] vs. -0.26 mL/min per 1.73 m2 [SD, 18.0]; P < 0.001). Limitation: Only 17 participants had dialysis. Conclusion: In adults with vascular disease but without macroalbuminuria, the effects of telmisartan on major renal outcomes were similar to those of placebo. Primary Funding Source: Boehringer Ingelheim.002B01TelmisartanNKFR01TelmisartanNKFR01TelmisartánNKFR01Rein02Kidney02Riñón02Evolution03Evolution03Evolución03Pronostic05Prognosis05Pronóstico05Essai clinique06Clinical trial06Ensayo clínico06Randomisation08Randomization08Aleatorización08Médecine09Medicine09Medicina09Homme25Human25Hombre25Antihypertenseur26Antihypertensive agent26Antihipertensivo26Angiotensine IIFR37Angiotensin IIFR37Angiotensina IIFR37Antagoniste angiotensine38Angiotensin antagonist38Antagonista angiotensina38Dérivé du benzimidazoleFRFF39Benzimidazole derivativesFRFF39Benzimidazol derivadoFRFF39Dérivé de l'imidazole40Imidazole derivatives40Imidazol derivado40Sartan dérivé41Sartan derivatives41Sartan derivado41Appareil urinaire42Urinary system42Aparato urinario42Système renin angiotensine43Renin angiotensin system43Sistema renin angiotensina43Hormone peptide45Peptide hormone45Hormona péptido45Octapeptide46Octapeptide46Octapéptido46Récepteur AT1 de l'angiotensine IIINC86222OTOOTOPASCAL 09-0312788 INISTEffect of Telmisartan on Renal Outcomes: A Randomized TrialMANN (Johannes F. E.); SCHMIEDER (Roland E.); DYAL (Leanne); MCQUEEN (Matthew J.); SCHUMACHER (Helmut); POGUE (Janice); XINGYU WANG; PROBSTFIELD (Jeffrey L.); AVEZUM (Alvaro); CARDONA-MUNOZ (Ernesto); DAGENAIS (Gilles R.); DIAZ (Rafael); FODOR (George); MAILLON (Jean M.); RYDEN (Lars); YU (Cheuk M.); TEO (Koon K.); YUSUF (Salim)Schwabing General Hospital and KfH Kidney Center, Ludwig Maximilians University/Munich/Allemagne; Friedrich Alexander University/Erlangen/Allemagne; Population Health Research Institute, McMaster University/Hamilton, Ontario/Canada; Boehringer Ingelheim/Ingelheim/Allemagne; Beijing Hypertension League Institute/Beijing/Chine; University of Washington/Seattle, Washington/Etats-Unis; Dante Pazzanese Institute of Cardiology/São Paulo/Brésil; University of Guadalajara/Guadalajara/Mexique; Institute of Cardiology and Pneumology, Laval University and Hospital/Quebec, Quebec/Canada; University of Buenos Aires/Buenos Aires/Argentine; Heart Institute, University of Ottawa/Ottawa, Ontario/Canada; University of Grenoble/Grenoble/France; Karolinska Institutet/Stockholm/Suède; Prince of Wales Hospital, Chinese University of Hong Kong/Hong-Kong
Publication en série; Niveau analytique
Annals of internal medicine; ISSN 0003-4819; Coden AIMEAS; Etats-Unis; Da. 2009; Vol. 151; No. 1; Pp. 1-10; Bibl. 22 ref.AnglaisBackground: Angiotensin-receptor blockers (ARBs) blunt progression of advanced diabetic nephropathy, but their long-term renal effects in other patients are not clear. Objective: To examine the long-term renal effects of telmisartan versus placebo in adults at high vascular risk. Design: Randomized trial. Patients were randomly assigned by a central automated system between November 2001 and May 2004 and were followed until March 2008. Participants and investigators were blinded to intervention status. Setting: Multicenter, multinational study. Patients: 5927 adults with known cardiovascular disease or diabetes with end-organ damage but without macroalbuminuria or heart failure who cannot tolerate angiotensin-converting enzyme inhibitors. Intervention: Telmisartan, 80 mg/d (n = 2954), or matching placebo (n = 2972) plus standard treatment for a mean of 56 months. Measurements: Composite renal outcome of dialysis or doubling of serum creatinine, changes in estimated glomerular filtration rate (GFR), and changes in albuminuria. Results: No important difference was found in the composite renal outcome with telmisartan (58 patients [1.96%]) versus placebo (46 patients [1.55%]) (hazard ratio, 1.29 [95% CI, 0.87 to 1.89]; P = 0.20). Among the telmisartan and placebo groups, 7 and 10 patients had dialysis and 56 and 36 patients had doubling of serum creatinine, respectively (hazard ratio, 1.59 [CI, 1.04 to 2.41]; P = 0.031). Albuminuria increased less with telmisartan than with placebo (32% [CI, 23% to 41%] vs. 63% [CI, 52% to 76%]; P < 0.001). Decreases in estimated GFR were greater with telmisartan than with placebo (mean change in estimated GFR, -3.2 mL/min per 1.73 m2 [SD, 18.3] vs. -0.26 mL/min per 1.73 m2 [SD, 18.0]; P < 0.001). Limitation: Only 17 participants had dialysis. Conclusion: In adults with vascular disease but without macroalbuminuria, the effects of telmisartan on major renal outcomes were similar to those of placebo. Primary Funding Source: Boehringer Ingelheim.002B01Telmisartan; Rein; Evolution; Pronostic; Essai clinique; Randomisation; Médecine; Homme; AntihypertenseurAngiotensine II; Antagoniste angiotensine; Dérivé du benzimidazole; Dérivé de l'imidazole; Sartan dérivé; Appareil urinaire; Système renin angiotensine; Hormone peptide; Octapeptide; Récepteur AT1 de l'angiotensine IITelmisartan; Kidney; Evolution; Prognosis; Clinical trial; Randomization; Medicine; Human; Antihypertensive agentAngiotensin II; Angiotensin antagonist; Benzimidazole derivatives; Imidazole derivatives; Sartan derivatives; Urinary system; Renin angiotensin system; Peptide hormone; OctapeptideTelmisartán; Riñón; Evolución; Pronóstico; Ensayo clínico; Aleatorización; Medicina; Hombre; AntihipertensivoINIST-2014.35400018799248001009-0312788
000C86 Mutations involved in Aicardi-Goutières syndrome implicate SAMHD1 as regulator of the innate immune responseGillian I. RiceAcademic Unit of Medical Genetics, University of ManchesterManchesterGBR1 aut.12 aut.51 aut.Leeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Jacquelyn BondLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Aruna AsipuLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Rebecca L. BrunetteDepartment of Immunology, University of WashingtonSeattleUSA4 aut.49 aut.Iain W. ManfieldJIF Centre for Biomolecular Interactions, Astbury Centre for Structural Molecular Biology, Manton Building, University of LeedsLeedsGBR5 aut.7 aut.8 aut.Ian M. CarrLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Jonathan C. FuflerJIF Centre for Biomolecular Interactions, Astbury Centre for Structural Molecular Biology, Manton Building, University of LeedsLeedsGBR5 aut.7 aut.8 aut.Richard M. JacksonJIF Centre for Biomolecular Interactions, Astbury Centre for Structural Molecular Biology, Manton Building, University of LeedsLeedsGBR5 aut.7 aut.8 aut.Teresa LambDNA Laboratory, Yorkshire Regional Genetics Service, Ashley Wing, St. James's University HospitalLeedsGBR9 aut.Tracy A. BriggsLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Manir AliLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Hannah GornallAcademic Unit of Medical Genetics, University of ManchesterManchesterGBR1 aut.12 aut.51 aut.Lydia R. CouthardLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Alec AebyDepartment of Paediatric Neurology, Erasme Hospital-ULBBrusselsBEL14 aut.Simon P. Attard-MontaltoDepartment of Paediatrics, The Medical School, Mater Dei HospitalTal-QroqqMLT15 aut.40 aut.Enrico BertiniUnit of Molecular Medicine and Neuromuscular Disorders, Bambino Gesù Children's HospitalRomeITA16 aut.Christine BodemerDepartment of Dermatology, Université Paris V René DesartesParisFRA17 aut.Knut BrockmannPediatrics and Pediatric Neurology, Georg August UniversityGoettingenDEU18 aut.Louise A. BruetonClinical Genetics Unit, Birmingham Women's HospitalEdgbaston, BirminghamGBR19 aut.Peter C. CorryBradford Child Development Centre, St. Luke's Hospital, Little Horton LaneBradfordGBR20 aut.Isabelle DesguerreAPHP, Paediatric Neurology, Hôpital NeckerParisFRA21 aut.Elisa FazziDepartment of Child Neurology and Psychiatry, IRCCS Institute of Neurology, "C. Mondino" FoundationPaviaITA22 aut.36 aut.Angels Garcia CazorlaNeurology Department, Hospital Sant Joan de DéuEsplugues, BarcelonaESP23 aut.Blanca GenerClinical Genetics Unit-Department of Paediatrics, Hospital de CrucesBaracaldo, VizcayaESP24 aut.Ben C. J. HamelDepartment of Human Genetics, Radboud University Nijmegen Medical CenterNijmegenNLD25 aut.Arvid HeibergDepartment of Medical Genetics, RikshospitaletOsloNOR26 aut.Matthew HunterGenetic Health, Victorian Clinical Genetics Service, Royal Children's HospitalParkville, VictoriaAUS27 aut.Marjo S. Van Der KnaapDepartment of Pediatrics/Child Neurology, VU University Medical CenterAmsterdamNLD28 aut.Ram KumarDepartment of Neurology, Alder Hey Children's NHS Foundation TrustLiverpoolGBR29 aut.Lieven LagaePaediatric Neurology, University Hospitals of GasthuisbergLeuvenBEL30 aut.Pierre G. LandrieuPediatric Neurology Department, CHU Paris Sud-HôpitalBicêtreFRA31 aut.Charles M. LourencoNeurogenetics Unit, Medical Genetics Service, Hospital das Clinicas de Ribeirao Preto, School of Medicine of Ribeirao Preto, University of Sao Paulo, Campus Universitario, Monte AlegreRibeirão Preto-SPBRA32 aut.Daphna MaromThe Raphael Recanati Genetic Institute, Rabin Medical CenterPetach-TikvaISR33 aut.Michael F. McdermottLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.William Van Der MerweSimona OrcesiDepartment of Child Neurology and Psychiatry, IRCCS Institute of Neurology, "C. Mondino" FoundationPaviaITA22 aut.36 aut.Julie S. PrendivilleMagnhild RasmussenStavit A. ShalevDoriette M. SolerDepartment of Paediatrics, The Medical School, Mater Dei HospitalTal-QroqqMLT15 aut.40 aut.Marwan ShinawiRonen SpiegelTiong Y. TanAdeline VanderverEmma L. WakelingEvangeline WassmerElizabeth WhittakerPierre LebonDaniel B. StetsonDepartment of Immunology, University of WashingtonSeattleUSA4 aut.49 aut.David T. BonthronLeeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Yanick J. CrowAcademic Unit of Medical Genetics, University of ManchesterManchesterGBR1 aut.12 aut.51 aut.09-03136462009PASCAL 09-0313646 INISTPascal:09-0313646001C931061-4036Nat. genet.Nature geneticsAicardi syndromeImmune responseMutationNatural immunityMutationEncéphalopathie infantile chronique d'AicardiImmunité naturelleRéponse immune
Aicardi-Goutières syndrome is a mendelian mimic of congenital infection and also shows overlap with systemic lupus erythematosus at both a clinical and biochemical level. The recent identification of mutations in TREX1 and genes encoding the RNASEH2 complex and studies of the function of TREX1 in DNA metabolism have defined a previously unknown mechanism for the initiation of autoimmunity by interferon-stimulatory nucleic acid. Here we describe mutations in SAMHD1 as the cause of AGS at the AGS5 locus and present data to show that SAMHD1 may act as a negative regulator of the cell-intrinsic antiviral response.
1061-4036NGENECNat. genet.417Mutations involved in Aicardi-Goutières syndrome implicate SAMHD1 as regulator of the innate immune responseRICE (Gillian I.)BOND (Jacquelyn)ASIPU (Aruna)BRUNETTE (Rebecca L.)MANFIELD (Iain W.)CARR (Ian M.)FUFLER (Jonathan C.)JACKSON (Richard M.)LAMB (Teresa)BRIGGS (Tracy A.)ALI (Manir)GORNALL (Hannah)COUTHARD (Lydia R.)AEBY (Alec)ATTARD-MONTALTO (Simon P.)BERTINI (Enrico)BODEMER (Christine)BROCKMANN (Knut)BRUETON (Louise A.)CORRY (Peter C.)DESGUERRE (Isabelle)FAZZI (Elisa)GARCIA CAZORLA (Angels)GENER (Blanca)HAMEL (Ben C. J.)HEIBERG (Arvid)HUNTER (Matthew)VAN DER KNAAP (Marjo S.)KUMAR (Ram)LAGAE (Lieven)LANDRIEU (Pierre G.)LOURENCO (Charles M.)MAROM (Daphna)MCDERMOTT (Michael F.)VAN DER MERWE (William)ORCESI (Simona)PRENDIVILLE (Julie S.)RASMUSSEN (Magnhild)SHALEV (Stavit A.)SOLER (Doriette M.)SHINAWI (Marwan)SPIEGEL (Ronen)TAN (Tiong Y.)VANDERVER (Adeline)WAKELING (Emma L.)WASSMER (Evangeline)WHITTAKER (Elizabeth)LEBON (Pierre)STETSON (Daniel B.)BONTHRON (David T.)CROW (Yanick J.)Academic Unit of Medical Genetics, University of ManchesterManchesterGBR1 aut.12 aut.51 aut.Leeds Institute of Molecular Medicine, University of Leeds, St. James's University HospitalLeedsGBR1 aut.2 aut.3 aut.6 aut.10 aut.11 aut.13 aut.34 aut.50 aut.Department of Immunology, University of WashingtonSeattleUSA4 aut.49 aut.JIF Centre for Biomolecular Interactions, Astbury Centre for Structural Molecular Biology, Manton Building, University of LeedsLeedsGBR5 aut.7 aut.8 aut.DNA Laboratory, Yorkshire Regional Genetics Service, Ashley Wing, St. James's University HospitalLeedsGBR9 aut.Department of Paediatric Neurology, Erasme Hospital-ULBBrusselsBEL14 aut.Department of Paediatrics, The Medical School, Mater Dei HospitalTal-QroqqMLT15 aut.40 aut.Unit of Molecular Medicine and Neuromuscular Disorders, Bambino Gesù Children's HospitalRomeITA16 aut.Department of Dermatology, Université Paris V René DesartesParisFRA17 aut.Pediatrics and Pediatric Neurology, Georg August UniversityGoettingenDEU18 aut.Clinical Genetics Unit, Birmingham Women's HospitalEdgbaston, BirminghamGBR19 aut.Bradford Child Development Centre, St. Luke's Hospital, Little Horton LaneBradfordGBR20 aut.APHP, Paediatric Neurology, Hôpital NeckerParisFRA21 aut.Department of Child Neurology and Psychiatry, IRCCS Institute of Neurology, "C. Mondino" FoundationPaviaITA22 aut.36 aut.Neurology Department, Hospital Sant Joan de DéuEsplugues, BarcelonaESP23 aut.Clinical Genetics Unit-Department of Paediatrics, Hospital de CrucesBaracaldo, VizcayaESP24 aut.Department of Human Genetics, Radboud University Nijmegen Medical CenterNijmegenNLD25 aut.Department of Medical Genetics, RikshospitaletOsloNOR26 aut.Genetic Health, Victorian Clinical Genetics Service, Royal Children's HospitalParkville, VictoriaAUS27 aut.Department of Pediatrics/Child Neurology, VU University Medical CenterAmsterdamNLD28 aut.Department of Neurology, Alder Hey Children's NHS Foundation TrustLiverpoolGBR29 aut.Paediatric Neurology, University Hospitals of GasthuisbergLeuvenBEL30 aut.Pediatric Neurology Department, CHU Paris Sud-HôpitalBicêtreFRA31 aut.Neurogenetics Unit, Medical Genetics Service, Hospital das Clinicas de Ribeirao Preto, School of Medicine of Ribeirao Preto, University of Sao Paulo, Campus Universitario, Monte AlegreRibeirão Preto-SPBRA32 aut.The Raphael Recanati Genetic Institute, Rabin Medical CenterPetach-TikvaISR33 aut.829-8322009ENGINIST228833540001872175401400000© 2009 INIST-CNRS. All rights reserved.30 ref.09-0313646PCRANature geneticsGBRAicardi-Goutières syndrome is a mendelian mimic of congenital infection and also shows overlap with systemic lupus erythematosus at both a clinical and biochemical level. The recent identification of mutations in TREX1 and genes encoding the RNASEH2 complex and studies of the function of TREX1 in DNA metabolism have defined a previously unknown mechanism for the initiation of autoimmunity by interferon-stimulatory nucleic acid. Here we describe mutations in SAMHD1 as the cause of AGS at the AGS5 locus and present data to show that SAMHD1 may act as a negative regulator of the cell-intrinsic antiviral response.002A07002B17DMutation01Mutation01Mutación01Encéphalopathie infantile chronique d'Aicardi02Aicardi syndrome02Parálisis cerebral infantil crónica Aicardi02Immunité naturelle03Natural immunity03Inmunidad natural03Réponse immune04Immune response04Respuesta inmune04Pathologie de l'encéphale19Cerebral disorder19Encéfalo patología19Maladie congénitale20Congenital disease20Enfermedad congénita20Malformation21Malformation21Malformación21Pathologie de l'oeil22Eye disease22Ojo patología22Pathologie du système nerveux central23Central nervous system disease23Sistema nervosio central patología23Pathologie du système nerveux24Nervous system diseases24Sistema nervioso patología24222OTOOTOPASCAL 09-0313646 INISTMutations involved in Aicardi-Goutières syndrome implicate SAMHD1 as regulator of the innate immune responseRICE (Gillian I.); BOND (Jacquelyn); ASIPU (Aruna); BRUNETTE (Rebecca L.); MANFIELD (Iain W.); CARR (Ian M.); FUFLER (Jonathan C.); JACKSON (Richard M.); LAMB (Teresa); BRIGGS (Tracy A.); ALI (Manir); GORNALL (Hannah); COUTHARD (Lydia R.); AEBY (Alec); ATTARD-MONTALTO (Simon P.); BERTINI (Enrico); BODEMER (Christine); BROCKMANN (Knut); BRUETON (Louise A.); CORRY (Peter C.); DESGUERRE (Isabelle); FAZZI (Elisa); GARCIA CAZORLA (Angels); GENER (Blanca); HAMEL (Ben C. J.); HEIBERG (Arvid); HUNTER (Matthew); VAN DER KNAAP (Marjo S.); KUMAR (Ram); LAGAE (Lieven); LANDRIEU (Pierre G.); LOURENCO (Charles M.); MAROM (Daphna); MCDERMOTT (Michael F.); VAN DER MERWE (William); ORCESI (Simona); PRENDIVILLE (Julie S.); RASMUSSEN (Magnhild); SHALEV (Stavit A.); SOLER (Doriette M.); SHINAWI (Marwan); SPIEGEL (Ronen); TAN (Tiong Y.); VANDERVER (Adeline); WAKELING (Emma L.); WASSMER (Evangeline); WHITTAKER (Elizabeth); LEBON (Pierre); STETSON (Daniel B.); BONTHRON (David T.); CROW (Yanick J.)Academic Unit of Medical Genetics, University of Manchester/Manchester/Royaume-Uni (1 aut., 12 aut., 51 aut.); Leeds Institute of Molecular Medicine, University of Leeds, St. James's University Hospital/Leeds/Royaume-Uni (1 aut., 2 aut., 3 aut., 6 aut., 10 aut., 11 aut., 13 aut., 34 aut., 50 aut.); Department of Immunology, University of Washington/Seattle/Etats-Unis (4 aut., 49 aut.); JIF Centre for Biomolecular Interactions, Astbury Centre for Structural Molecular Biology, Manton Building, University of Leeds/Leeds/Royaume-Uni (5 aut., 7 aut., 8 aut.); DNA Laboratory, Yorkshire Regional Genetics Service, Ashley Wing, St. James's University Hospital/Leeds/Royaume-Uni (9 aut.); Department of Paediatric Neurology, Erasme Hospital-ULB/Brussels/Belgique (14 aut.); Department of Paediatrics, The Medical School, Mater Dei Hospital/Tal-Qroqq/Malte (15 aut., 40 aut.); Unit of Molecular Medicine and Neuromuscular Disorders, Bambino Gesù Children's Hospital/Rome/Italie (16 aut.); Department of Dermatology, Université Paris V René Desartes/Paris/France (17 aut.); Pediatrics and Pediatric Neurology, Georg August University/Goettingen/Allemagne (18 aut.); Clinical Genetics Unit, Birmingham Women's Hospital/Edgbaston, Birmingham/Royaume-Uni (19 aut.); Bradford Child Development Centre, St. Luke's Hospital, Little Horton Lane/Bradford/Royaume-Uni (20 aut.); APHP, Paediatric Neurology, Hôpital Necker/Paris/France (21 aut.); Department of Child Neurology and Psychiatry, IRCCS Institute of Neurology, "C. Mondino" Foundation/Pavia/Italie (22 aut., 36 aut.); Neurology Department, Hospital Sant Joan de Déu/Esplugues, Barcelona/Espagne (23 aut.); Clinical Genetics Unit-Department of Paediatrics, Hospital de Cruces/Baracaldo, Vizcaya/Espagne (24 aut.); Department of Human Genetics, Radboud University Nijmegen Medical Center/Nijmegen/Pays-Bas (25 aut.); Department of Medical Genetics, Rikshospitalet/Oslo/Norvège (26 aut.); Genetic Health, Victorian Clinical Genetics Service, Royal Children's Hospital/Parkville, Victoria/Australie (27 aut.); Department of Pediatrics/Child Neurology, VU University Medical Center/Amsterdam/Pays-Bas (28 aut.); Department of Neurology, Alder Hey Children's NHS Foundation Trust/Liverpool/Royaume-Uni (29 aut.); Paediatric Neurology, University Hospitals of Gasthuisberg/Leuven/Belgique (30 aut.); Pediatric Neurology Department, CHU Paris Sud-Hôpital/Bicêtre/France (31 aut.); Neurogenetics Unit, Medical Genetics Service, Hospital das Clinicas de Ribeirao Preto, School of Medicine of Ribeirao Preto, University of Sao Paulo, Campus Universitario, Monte Alegre/Ribeirão Preto-SP/Brésil (32 aut.); The Raphael Recanati Genetic Institute, Rabin Medical Center/Petach-Tikva/Israël (33 aut.)
Publication en série; Correspondance, lettre; Niveau analytique
Nature genetics; ISSN 1061-4036; Coden NGENEC; Royaume-Uni; Da. 2009; Vol. 41; No. 7; Pp. 829-832; Bibl. 30 ref.AnglaisAicardi-Goutières syndrome is a mendelian mimic of congenital infection and also shows overlap with systemic lupus erythematosus at both a clinical and biochemical level. The recent identification of mutations in TREX1 and genes encoding the RNASEH2 complex and studies of the function of TREX1 in DNA metabolism have defined a previously unknown mechanism for the initiation of autoimmunity by interferon-stimulatory nucleic acid. Here we describe mutations in SAMHD1 as the cause of AGS at the AGS5 locus and present data to show that SAMHD1 may act as a negative regulator of the cell-intrinsic antiviral response.002A07; 002B17DMutation; Encéphalopathie infantile chronique d'Aicardi; Immunité naturelle; Réponse immunePathologie de l'encéphale; Maladie congénitale; Malformation; Pathologie de l'oeil; Pathologie du système nerveux central; Pathologie du système nerveuxMutation; Aicardi syndrome; Natural immunity; Immune responseCerebral disorder; Congenital disease; Malformation; Eye disease; Central nervous system disease; Nervous system diseasesMutación; Parálisis cerebral infantil crónica Aicardi; Inmunidad natural; Respuesta inmuneINIST-22883.35400018721754014009-0313646
000C87 Water sorption and glass transition temperature of spray dried açai (Euterpe oleracea Mart.) juiceRenata V. TononFaculty of Food Engineering, State University of Campinas, Rua Monteiro Lobato, 80, P.O. Box 612113083-862 Campinas, SPBRA1 aut.6 aut.Alessandra F. BaroniFaculty of Engineering, Mauá Institute of Technology, Praça Mauá 109580-900, São Caetano do Sul, SPBRA2 aut.Catherine BrabetCentre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Department PERSYST, UMR QualiSudMontpellierFRA3 aut.4 aut.5 aut.Olivier GibertCentre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Department PERSYST, UMR QualiSudMontpellierFRA3 aut.4 aut.5 aut.Dominique PalletCentre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Department PERSYST, UMR QualiSudMontpellierFRA3 aut.4 aut.5 aut.Miriam D. HubingerFaculty of Food Engineering, State University of Campinas, Rua Monteiro Lobato, 80, P.O. Box 612113083-862 Campinas, SPBRA1 aut.6 aut.09-03136862009PASCAL 09-0313686 INISTPascal:09-0313686001C920260-8774J. food eng.Journal of food engineeringGlass transitionGlass transition temperatureQualityStabilityWater activityWater sorptionSorption eauTempérature transition vitreuseActivité eauTransition vitreuseStabilitéQualité
Sorption isotherms and glass transition temperature (Tg) of powdered açai juice were evaluated in this work. Powders were produced by spray drying using different materials as carrier agents: maltodextrin 10DE, maltodextrin 20DE, gum Arabic and tapioca starch. The sorption isotherms were determined by the gravimetric method, while the Tg of powders conditioned at various water activities were determined by differential scanning calorimetry. As results, experimental data of water adsorption were well fitted to both BET and GAB models. Powders produced with maltodextrin 20DE and gum Arabic showed the highest water adsorption, followed by those produced with maltodextrin 10DE and with tapioca starch, respectively. With respect to the glass transition temperature, Gordon-Taylor model was able to predict the strong plasticizing effect of water on this property. Both aw and Tg were used to determine the critical conditions for food storage, at which powders are not susceptible to deteriorative changes such as collapse, stickiness and caking.
0260-8774JFOEDHJ. food eng.943-4Water sorption and glass transition temperature of spray dried açai (Euterpe oleracea Mart.) juiceTONON (Renata V.)BARONI (Alessandra F.)BRABET (Catherine)GIBERT (Olivier)PALLET (Dominique)HUBINGER (Miriam D.)Faculty of Food Engineering, State University of Campinas, Rua Monteiro Lobato, 80, P.O. Box 612113083-862 Campinas, SPBRA1 aut.6 aut.Faculty of Engineering, Mauá Institute of Technology, Praça Mauá 109580-900, São Caetano do Sul, SPBRA2 aut.Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Department PERSYST, UMR QualiSudMontpellierFRA3 aut.4 aut.5 aut.215-2212009ENGINIST196153540001872176200200000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0313686PAJournal of food engineeringGBRSorption isotherms and glass transition temperature (Tg) of powdered açai juice were evaluated in this work. Powders were produced by spray drying using different materials as carrier agents: maltodextrin 10DE, maltodextrin 20DE, gum Arabic and tapioca starch. The sorption isotherms were determined by the gravimetric method, while the Tg of powders conditioned at various water activities were determined by differential scanning calorimetry. As results, experimental data of water adsorption were well fitted to both BET and GAB models. Powders produced with maltodextrin 20DE and gum Arabic showed the highest water adsorption, followed by those produced with maltodextrin 10DE and with tapioca starch, respectively. With respect to the glass transition temperature, Gordon-Taylor model was able to predict the strong plasticizing effect of water on this property. Both aw and Tg were used to determine the critical conditions for food storage, at which powders are not susceptible to deteriorative changes such as collapse, stickiness and caking.002A35A03Sorption eau01Water sorption01Sorción agua01Température transition vitreuse02Glass transition temperature02Temperatura transición vítrosa02Activité eau10Water activity10Agua actividad10Transition vitreuse19Glass transition19Transición vítrea19Stabilité20Stability20Estabilidad20Qualité28Quality28Calidad28222OTOOTOPASCAL 09-0313686 INISTWater sorption and glass transition temperature of spray dried açai (Euterpe oleracea Mart.) juiceTONON (Renata V.); BARONI (Alessandra F.); BRABET (Catherine); GIBERT (Olivier); PALLET (Dominique); HUBINGER (Miriam D.)Faculty of Food Engineering, State University of Campinas, Rua Monteiro Lobato, 80, P.O. Box 6121/13083-862 Campinas, SP/Brésil (1 aut., 6 aut.); Faculty of Engineering, Mauá Institute of Technology, Praça Mauá 1/09580-900, São Caetano do Sul, SP/Brésil (2 aut.); Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Department PERSYST, UMR QualiSud/Montpellier/France (3 aut., 4 aut., 5 aut.)
Publication en série; Niveau analytique
Journal of food engineering; ISSN 0260-8774; Coden JFOEDH; Royaume-Uni; Da. 2009; Vol. 94; No. 3-4; Pp. 215-221; Bibl. 3/4 p.AnglaisSorption isotherms and glass transition temperature (Tg) of powdered açai juice were evaluated in this work. Powders were produced by spray drying using different materials as carrier agents: maltodextrin 10DE, maltodextrin 20DE, gum Arabic and tapioca starch. The sorption isotherms were determined by the gravimetric method, while the Tg of powders conditioned at various water activities were determined by differential scanning calorimetry. As results, experimental data of water adsorption were well fitted to both BET and GAB models. Powders produced with maltodextrin 20DE and gum Arabic showed the highest water adsorption, followed by those produced with maltodextrin 10DE and with tapioca starch, respectively. With respect to the glass transition temperature, Gordon-Taylor model was able to predict the strong plasticizing effect of water on this property. Both aw and Tg were used to determine the critical conditions for food storage, at which powders are not susceptible to deteriorative changes such as collapse, stickiness and caking.002A35A03Sorption eau; Température transition vitreuse; Activité eau; Transition vitreuse; Stabilité; QualitéWater sorption; Glass transition temperature; Water activity; Glass transition; Stability; QualitySorción agua; Temperatura transición vítrosa; Agua actividad; Transición vítrea; Estabilidad; CalidadINIST-19615.35400018721762002009-0313686
000C88 Identifying and mapping biodiversity processes for conservation planning in islands: A case study in Réunion Island (Western Indian Ocean)Erwann LagabrielleUMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis97410 Saint-PierreFRA1 aut.3 aut.4 aut.8 aut.Botany Department, Nelson Mandela Metropolitan University, Saasveld Campus, Private Bag X6531George 6530ZAF1 aut.7 aut.Mathieu RougetConservation Science Group, Zoology Department, University of Cambridge, Downing StreetCB2 3EJGBR2 aut.Biodiversity Planning Unit. South African National Biodiversity Institute, Private Bag X101Pretoria 0001ZAF2 aut.3 aut.4 aut.Karine PayetUMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis97410 Saint-PierreFRA1 aut.3 aut.4 aut.8 aut.Biodiversity Planning Unit. South African National Biodiversity Institute, Private Bag X101Pretoria 0001ZAF2 aut.3 aut.4 aut.Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, Private Bag x1Matieland, 7602ZAF3 aut.Nokuthula WistebaarUMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis97410 Saint-PierreFRA1 aut.3 aut.4 aut.8 aut.Biodiversity Planning Unit. South African National Biodiversity Institute, Private Bag X101Pretoria 0001ZAF2 aut.3 aut.4 aut.Laurent DurieuxInstitute for Research and Development (IRD), Unité Espace S140, IRD Brésil, CP 7091 - Lago Sul71619 - 970 Brasilia (DF)BRA5 aut.6 aut.Stéphane BaretInstitute for Research and Development (IRD), Unité Espace S140, IRD Brésil, CP 7091 - Lago Sul71619 - 970 Brasilia (DF)BRA5 aut.6 aut.Parc national de La Réunion, 112 rue Sainte Marie97400 Saint-DenisFRA6 aut.National Botanical Conservatory of Mascarin, 2 rue du Père Georges, Les Colimaçons97436 Saint-LeuFRA6 aut.Amanda LombardBotany Department, Nelson Mandela Metropolitan University, Saasveld Campus, Private Bag X6531George 6530ZAF1 aut.7 aut.Dominique StrasbergUMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis97410 Saint-PierreFRA1 aut.3 aut.4 aut.8 aut.09-03157372009PASCAL 09-0315737 INISTPascal:09-0315737001C910006-3207Biol. conserv.Biological conservationBiodiversityBiogeographyCase studyConservationCostsEnvironmental protectionIndian OceanLand useMarine environmentModelingPlanningReunion islandSocioeconomicsDiversité biologiqueConservationPlanificationIle RéunionEtude casOcéan IndienBiogéographieOccupation solModélisationSocioéconomieCoûtProtection environnementMilieu marin
Over the last century, island biodiversity has become one of the most threatened in the world. Although many island conservation plans address biodiversity requirements at the species level, few plans address the spatial requirements of the biodiversity processes that underpin the persistence of these species. Using systematic conservation planning principles, we map the spatial components of biodiversity processes (SCBPs) and use these to design broad-scale conservation corridors for Réunion Island. Our method is based upon a literature review, expert knowledge, spatially explicit base data, conservation planning software, and spatial modelling. We combine a target-driven algorithm with least-cost path analyses to delineate optimal corridors for capturing key biodiversity processes while simultaneously considering biodiversity pattern targets, conservation opportunities, and future threats. We identify five SCBPs: the oceanic-terrestrial interface; riverine corridors; macrohabitat interfaces; the boundaries of isolated topographic units; and lowland-upland gradients. A large proportion of the SCBPs (81.3%) is currently untransformed, whereas 3% is irreversibly transformed by urbanisation and 15.7% is transformed but restorable. However, SCBPs are almost fully disrupted by urbanisation in the lowlands, thereby compromising functional corridors along full altitudinal gradients. This study is a contribution toward the reconciliation of conservation versus development objectives on Réunion Island but we believe that the delineation method is sufficiently general to be applied to other islands. Our results highlight the need for integrating marine, coastal and terrestrial conservation planning as a matter of urgency, given the rapid transformation of coastal areas on islands.
0006-3207BICOBKBiol. conserv.1427Identifying and mapping biodiversity processes for conservation planning in islands: A case study in Réunion Island (Western Indian Ocean)LAGABRIELLE (Erwann)ROUGET (Mathieu)PAYET (Karine)WISTEBAAR (Nokuthula)DURIEUX (Laurent)BARET (Stéphane)LOMBARD (Amanda)STRASBERG (Dominique)UMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis97410 Saint-PierreFRA1 aut.3 aut.4 aut.8 aut.Botany Department, Nelson Mandela Metropolitan University, Saasveld Campus, Private Bag X6531George 6530ZAF1 aut.7 aut.Conservation Science Group, Zoology Department, University of Cambridge, Downing StreetCB2 3EJGBR2 aut.Biodiversity Planning Unit. South African National Biodiversity Institute, Private Bag X101Pretoria 0001ZAF2 aut.3 aut.4 aut.Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, Private Bag x1Matieland, 7602ZAF3 aut.Institute for Research and Development (IRD), Unité Espace S140, IRD Brésil, CP 7091 - Lago Sul71619 - 970 Brasilia (DF)BRA5 aut.6 aut.Parc national de La Réunion, 112 rue Sainte Marie97400 Saint-DenisFRA6 aut.National Botanical Conservatory of Mascarin, 2 rue du Père Georges, Les Colimaçons97436 Saint-LeuFRA6 aut.1523-15352009ENGINIST141693540001882709802900000© 2009 INIST-CNRS. All rights reserved.1 p.1/209-0315737PABiological conservationGBROver the last century, island biodiversity has become one of the most threatened in the world. Although many island conservation plans address biodiversity requirements at the species level, few plans address the spatial requirements of the biodiversity processes that underpin the persistence of these species. Using systematic conservation planning principles, we map the spatial components of biodiversity processes (SCBPs) and use these to design broad-scale conservation corridors for Réunion Island. Our method is based upon a literature review, expert knowledge, spatially explicit base data, conservation planning software, and spatial modelling. We combine a target-driven algorithm with least-cost path analyses to delineate optimal corridors for capturing key biodiversity processes while simultaneously considering biodiversity pattern targets, conservation opportunities, and future threats. We identify five SCBPs: the oceanic-terrestrial interface; riverine corridors; macrohabitat interfaces; the boundaries of isolated topographic units; and lowland-upland gradients. A large proportion of the SCBPs (81.3%) is currently untransformed, whereas 3% is irreversibly transformed by urbanisation and 15.7% is transformed but restorable. However, SCBPs are almost fully disrupted by urbanisation in the lowlands, thereby compromising functional corridors along full altitudinal gradients. This study is a contribution toward the reconciliation of conservation versus development objectives on Réunion Island but we believe that the delineation method is sufficiently general to be applied to other islands. Our results highlight the need for integrating marine, coastal and terrestrial conservation planning as a matter of urgency, given the rapid transformation of coastal areas on islands.002A14D02B002A14A02Diversité biologique01Biodiversity01Diversidad biológica01Conservation02Conservation02Conservación02Planification03Planning03Planificación03Ile RéunionNG04Reunion islandNG04Isla ReuniónNG04Etude cas05Case study05Estudio caso05Océan IndienNG06Indian OceanNG06Océano IndicoNG06Biogéographie07Biogeography07Biogeografía07Occupation sol08Land use08Ocupación terreno08Modélisation09Modeling09Modelización09Socioéconomie10Socioeconomics10Socioeconomía10Coût11Costs11Coste11Protection environnement12Environmental protection12Protección medio ambiente12Milieu marin23Marine environment23Medio marino23Iles Océan IndienNGIndian Ocean IslandsNGIslas Océano IndicoNG229OTOOTOPASCAL 09-0315737 INISTIdentifying and mapping biodiversity processes for conservation planning in islands: A case study in Réunion Island (Western Indian Ocean)LAGABRIELLE (Erwann); ROUGET (Mathieu); PAYET (Karine); WISTEBAAR (Nokuthula); DURIEUX (Laurent); BARET (Stéphane); LOMBARD (Amanda); STRASBERG (Dominique)UMR PVBMT, Université de la Réunion, Cirad, 7 chemin de l'Irat, Ligne paradis/97410 Saint-Pierre/France (1 aut., 3 aut., 4 aut., 8 aut.); Botany Department, Nelson Mandela Metropolitan University, Saasveld Campus, Private Bag X6531/George 6530/Afrique du Sud (1 aut., 7 aut.); Conservation Science Group, Zoology Department, University of Cambridge, Downing Street/CB2 3EJ/Royaume-Uni (2 aut.); Biodiversity Planning Unit. South African National Biodiversity Institute, Private Bag X101/Pretoria 0001/Afrique du Sud (2 aut., 3 aut., 4 aut.); Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, Private Bag x1/Matieland, 7602/Afrique du Sud (3 aut.); Institute for Research and Development (IRD), Unité Espace S140, IRD Brésil, CP 7091 - Lago Sul/71619 - 970 Brasilia (DF)/Brésil (5 aut., 6 aut.); Parc national de La Réunion, 112 rue Sainte Marie/97400 Saint-Denis/France (6 aut.); National Botanical Conservatory of Mascarin, 2 rue du Père Georges, Les Colimaçons/97436 Saint-Leu/France (6 aut.)
Publication en série; Niveau analytique
Biological conservation; ISSN 0006-3207; Coden BICOBK; Royaume-Uni; Da. 2009; Vol. 142; No. 7; Pp. 1523-1535; Bibl. 1 p.1/2AnglaisOver the last century, island biodiversity has become one of the most threatened in the world. Although many island conservation plans address biodiversity requirements at the species level, few plans address the spatial requirements of the biodiversity processes that underpin the persistence of these species. Using systematic conservation planning principles, we map the spatial components of biodiversity processes (SCBPs) and use these to design broad-scale conservation corridors for Réunion Island. Our method is based upon a literature review, expert knowledge, spatially explicit base data, conservation planning software, and spatial modelling. We combine a target-driven algorithm with least-cost path analyses to delineate optimal corridors for capturing key biodiversity processes while simultaneously considering biodiversity pattern targets, conservation opportunities, and future threats. We identify five SCBPs: the oceanic-terrestrial interface; riverine corridors; macrohabitat interfaces; the boundaries of isolated topographic units; and lowland-upland gradients. A large proportion of the SCBPs (81.3%) is currently untransformed, whereas 3% is irreversibly transformed by urbanisation and 15.7% is transformed but restorable. However, SCBPs are almost fully disrupted by urbanisation in the lowlands, thereby compromising functional corridors along full altitudinal gradients. This study is a contribution toward the reconciliation of conservation versus development objectives on Réunion Island but we believe that the delineation method is sufficiently general to be applied to other islands. Our results highlight the need for integrating marine, coastal and terrestrial conservation planning as a matter of urgency, given the rapid transformation of coastal areas on islands.002A14D02B; 002A14A02Diversité biologique; Conservation; Planification; Ile Réunion; Etude cas; Océan Indien; Biogéographie; Occupation sol; Modélisation; Socioéconomie; Coût; Protection environnement; Milieu marinIles Océan IndienBiodiversity; Conservation; Planning; Reunion island; Case study; Indian Ocean; Biogeography; Land use; Modeling; Socioeconomics; Costs; Environmental protection; Marine environmentIndian Ocean IslandsDiversidad biológica; Conservación; Planificación; Isla Reunión; Estudio caso; Océano Indico; Biogeografía; Ocupación terreno; Modelización; Socioeconomía; Coste; Protección medio ambiente; Medio marinoINIST-14169.35400018827098029009-0315737
000C89 Space-time spreading-multiplexing for MIMO wireless communication systems using the PARATUCK-2 tensor modelAndré L. F. De AlmeidaI3S Lahoratory, University of Nice-Sophia Antipolis, CNRSFRA1 aut.2 aut.GTEL-Wireless Telecom Research Group, Federal University of CearáFortalezaBRA1 aut.3 aut.Gérard FavierI3S Lahoratory, University of Nice-Sophia Antipolis, CNRSFRA1 aut.2 aut.Joao C. M. MotaGTEL-Wireless Telecom Research Group, Federal University of CearáFortalezaBRA1 aut.3 aut.09-03166342009PASCAL 09-0316634 INISTPascal:09-0316634001C900165-1684Signal process.Signal processingBit error rateBlind identificationChannel estimationCodingComputer simulationIdentifiabilityMIMO systemModelingParameter estimationSpace timeSymbol detectionTelecommunication systemTime division multiplexingTime spreadingTransmitterTransmitting antennaWireless telecommunicationEspace tempsMultiplexage tempsEtalement temporelSystème MIMOTélécommunication sans filSystème télécommunicationModélisationEmetteurCodageAntenne émettriceIdentifiabilitéIdentification aveugleEstimation canalDétection de symbolesTaux erreur bitSimulation ordinateurEstimation paramètre
In this paper, we present a new space-time spreading-multiplexing model for multiple-input multiple-output (MIMO) wireless communication systems relying on a tensor modeling of the transmitted and received signals. At the transmitter, we exploit the core of a PARATUCK-2 tensor model composed of a precoding matrix and two allocation matrices that allow to control the spreading and multiplexing of the data streams across the space dimension (transmit antennas) and time-dimension (time-slots). Different MIMO schemes combining space-time multiplexing and diversity can be derived from the proposed model. The identifiability and uniqueness of the PARATUCK-2 tensor model for the received signal are discussed and subsequently exploited for a joint blind channel estimation and symbol detection. The bit-error-rate performance of different transmit schemes derived from the proposed tensor model is evaluated by means of computer simulations.
0165-1684SPRODRSignal process.8911Space-time spreading-multiplexing for MIMO wireless communication systems using the PARATUCK-2 tensor modelDE ALMEIDA (André L. F.)FAVIER (Gérard)MOTA (Joao C. M.)I3S Lahoratory, University of Nice-Sophia Antipolis, CNRSFRA1 aut.2 aut.GTEL-Wireless Telecom Research Group, Federal University of CearáFortalezaBRA1 aut.3 aut.2103-21162009ENGINIST180153540001874775900300000© 2009 INIST-CNRS. All rights reserved.21 ref.09-0316634PPRASignal processingNLDIn this paper, we present a new space-time spreading-multiplexing model for multiple-input multiple-output (MIMO) wireless communication systems relying on a tensor modeling of the transmitted and received signals. At the transmitter, we exploit the core of a PARATUCK-2 tensor model composed of a precoding matrix and two allocation matrices that allow to control the spreading and multiplexing of the data streams across the space dimension (transmit antennas) and time-dimension (time-slots). Different MIMO schemes combining space-time multiplexing and diversity can be derived from the proposed model. The identifiability and uniqueness of the PARATUCK-2 tensor model for the received signal are discussed and subsequently exploited for a joint blind channel estimation and symbol detection. The bit-error-rate performance of different transmit schemes derived from the proposed tensor model is evaluated by means of computer simulations.001D04A04G001D04A04B001D04A04A2Espace temps01Space time01Espacio tiempo01Multiplexage temps02Time division multiplexing02Multiplaje tiempo02Etalement temporel03Time spreading03Desparramo temporal03Système MIMO04MIMO system04Sistema MIMO04Télécommunication sans fil05Wireless telecommunication05Telecomunicación sin hilo05Système télécommunication06Telecommunication system06Sistema telecomunicación06Modélisation07Modeling07Modelización07Emetteur08Transmitter08Emisor08Codage09Coding09Codificación09Antenne émettrice10Transmitting antenna10Antena emisión10Identifiabilité11Identifiability11Identificabilidad11Identification aveugle12Blind identification12Identificación ciega12Estimation canal13Channel estimation13Estimación canal13Détection de symboles14Symbol detection14Detección de símbolo14Taux erreur bit15Bit error rate15Tasa error bit15Simulation ordinateur16Computer simulation16Simulación computadora16Estimation paramètre31Parameter estimation31Estimación parámetro31229OTOOTOPASCAL 09-0316634 INISTSpace-time spreading-multiplexing for MIMO wireless communication systems using the PARATUCK-2 tensor modelDE ALMEIDA (André L. F.); FAVIER (Gérard); MOTA (Joao C. M.)I3S Lahoratory, University of Nice-Sophia Antipolis, CNRS/France (1 aut., 2 aut.); GTEL-Wireless Telecom Research Group, Federal University of Ceará/Fortaleza/Brésil (1 aut., 3 aut.)
Publication en série; Papier de recherche; Niveau analytique
Signal processing; ISSN 0165-1684; Coden SPRODR; Pays-Bas; Da. 2009; Vol. 89; No. 11; Pp. 2103-2116; Bibl. 21 ref.AnglaisIn this paper, we present a new space-time spreading-multiplexing model for multiple-input multiple-output (MIMO) wireless communication systems relying on a tensor modeling of the transmitted and received signals. At the transmitter, we exploit the core of a PARATUCK-2 tensor model composed of a precoding matrix and two allocation matrices that allow to control the spreading and multiplexing of the data streams across the space dimension (transmit antennas) and time-dimension (time-slots). Different MIMO schemes combining space-time multiplexing and diversity can be derived from the proposed model. The identifiability and uniqueness of the PARATUCK-2 tensor model for the received signal are discussed and subsequently exploited for a joint blind channel estimation and symbol detection. The bit-error-rate performance of different transmit schemes derived from the proposed tensor model is evaluated by means of computer simulations.001D04A04G; 001D04A04B; 001D04A04A2Espace temps; Multiplexage temps; Etalement temporel; Système MIMO; Télécommunication sans fil; Système télécommunication; Modélisation; Emetteur; Codage; Antenne émettrice; Identifiabilité; Identification aveugle; Estimation canal; Détection de symboles; Taux erreur bit; Simulation ordinateur; Estimation paramètreSpace time; Time division multiplexing; Time spreading; MIMO system; Wireless telecommunication; Telecommunication system; Modeling; Transmitter; Coding; Transmitting antenna; Identifiability; Blind identification; Channel estimation; Symbol detection; Bit error rate; Computer simulation; Parameter estimationEspacio tiempo; Multiplaje tiempo; Desparramo temporal; Sistema MIMO; Telecomunicación sin hilo; Sistema telecomunicación; Modelización; Emisor; Codificación; Antena emisión; Identificabilidad; Identificación ciega; Estimación canal; Detección de símbolo; Tasa error bit; Simulación computadora; Estimación parámetroINIST-18015.35400018747759003009-0316634
000C90 Lipid Treatment Assessment Project 2 A Multinational Survey to Evaluate the Proportion of Patients Achieving Low-Density Lipoprotein Cholesterol GoalsDavid D. WatersDivision of Cardiology, San Francisco General Hospital and the University of CaliforniaSan FranciscoUSA1 aut.Carlos BrotonsSardenya Primary Care CenterBarcelonaESP2 aut.Cheng-Wen ChiangCathay General Hospital and Taipei Medical UniversityTaipeiTWN3 aut.Jean FerrieresDepartment of Cardiology, Toulouse University School of Medicine, Rangueil HospitalToulouseFRA4 aut.Joanne FoodyDivision of Cardiovascular Medicine, Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical SchoolBoston, MassUSA5 aut.J. Wouter JukemaDepartment of Cardiology, Leiden University Medical CenterLeidenNLD6 aut.Raul D. SantosLipid Clinic Heart Institute (InCor), University of São Paulo HospitalSão PauloBRA7 aut.Juan VerdejoNational Institute of Cardiology "Ignacio Chávez,"TlalpanMEX8 aut.Michael MessigPfizer Inc.New York, NYUSA9 aut.12 aut.Ruth McphersonLipid Research Laboratory, University of Ottawa Heart InstituteOttawaCAN10 aut.Ki-Bae SeungDepartment of Internal Medicine, Kangnam St Mary's Hospital, Catholic University of KoreaSeoulKOR11 aut.Lisa TarasenkoPfizer Inc.New York, NYUSA9 aut.12 aut.09-03169292009PASCAL 09-0316929 INISTPascal:09-0316929001C890009-7322Circulation : (N. Y. N.Y.)Circulation : (New York, N.Y.)Antilipemic agentCardiovascular diseaseCholesterolHumanHypercholesterolemiaLipoproteinPreventionProportionStatin derivativeTreatmentHypercholestérolémiePathologie de l'appareil circulatoireTraitementProportionHommeLipoprotéineCholestérolPréventionDérivé de la statineHypolipémiant
Background-Information about physicians' adherence to cholesterol management guidelines remains scant. The present survey updates our knowledge of lipid management worldwide. Methods and Results-Lipid levels were determined at enrollment in dyslipidemic adult patients on stable lipid-lowering therapy in 9 countries. The primary end point was the success rate, defined as the proportion of patients achieving appropriate low-density lipoprotein cholesterol (LDL-C) goals for their given risk. The mean age of the 9955 evaluable patients was 62±12 years; 54% were male. Coronary disease and diabetes mellitus had been diagnosed in 30% and 31 %, respectively, and 14% were current smokers. Current treatment consisted of a statin in 75%. The proportion of patients achieving LDL-C goals according to relevant national guidelines ranged from 47% to 84% across countries. In low-, moderate-, and high-risk groups, mean LDL-C was 119, 109, and 91 mg/dL and mean high-density lipoprotein cholesterol was 62, 49, and 50 mg/dL, respectively. The success rate for LDL-C goal achievement was 86% in low-, 74% in moderate-, and 67% in high-risk patients (73% overall). However, among coronary heart disease patients with ≥2 risk factors, only 30% attained the optional LDL-C goal of <70 mg/dL. In the entire cohort, high-density lipoprotein cholesterol was <40 mg/dL in 19%, 40 to 60 mg/dL in 55%, and >60 mg/dL in 26% of patients. Conclusions-Although there is room for improvement, particularly in very-high-risk patients, these results indicate that lipid-lowering therapy is being applied much more successfully than it was a decade ago.
0009-7322CIRCAZCirculation : (N. Y. N.Y.)1201Lipid Treatment Assessment Project 2 A Multinational Survey to Evaluate the Proportion of Patients Achieving Low-Density Lipoprotein Cholesterol GoalsWATERS (David D.)BROTONS (Carlos)CHIANG (Cheng-Wen)FERRIERES (Jean)FOODY (Joanne)JUKEMA (J. Wouter)SANTOS (Raul D.)VERDEJO (Juan)MESSIG (Michael)MCPHERSON (Ruth)SEUNG (Ki-Bae)TARASENKO (Lisa)Division of Cardiology, San Francisco General Hospital and the University of CaliforniaSan FranciscoUSA1 aut.Sardenya Primary Care CenterBarcelonaESP2 aut.Cathay General Hospital and Taipei Medical UniversityTaipeiTWN3 aut.Department of Cardiology, Toulouse University School of Medicine, Rangueil HospitalToulouseFRA4 aut.Division of Cardiovascular Medicine, Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical SchoolBoston, MassUSA5 aut.Department of Cardiology, Leiden University Medical CenterLeidenNLD6 aut.Lipid Clinic Heart Institute (InCor), University of São Paulo HospitalSão PauloBRA7 aut.National Institute of Cardiology "Ignacio Chávez,"TlalpanMEX8 aut.Pfizer Inc.New York, NYUSA9 aut.12 aut.Lipid Research Laboratory, University of Ottawa Heart InstituteOttawaCAN10 aut.Department of Internal Medicine, Kangnam St Mary's Hospital, Catholic University of KoreaSeoulKOR11 aut.Lipid Treatment Assessment Project 2 InvestigatorsINC28-342009ENGINIST59073540001879969300600000© 2009 INIST-CNRS. All rights reserved.21 ref.09-0316929PACirculation : (New York, N.Y.)USABackground-Information about physicians' adherence to cholesterol management guidelines remains scant. The present survey updates our knowledge of lipid management worldwide. Methods and Results-Lipid levels were determined at enrollment in dyslipidemic adult patients on stable lipid-lowering therapy in 9 countries. The primary end point was the success rate, defined as the proportion of patients achieving appropriate low-density lipoprotein cholesterol (LDL-C) goals for their given risk. The mean age of the 9955 evaluable patients was 62±12 years; 54% were male. Coronary disease and diabetes mellitus had been diagnosed in 30% and 31 %, respectively, and 14% were current smokers. Current treatment consisted of a statin in 75%. The proportion of patients achieving LDL-C goals according to relevant national guidelines ranged from 47% to 84% across countries. In low-, moderate-, and high-risk groups, mean LDL-C was 119, 109, and 91 mg/dL and mean high-density lipoprotein cholesterol was 62, 49, and 50 mg/dL, respectively. The success rate for LDL-C goal achievement was 86% in low-, 74% in moderate-, and 67% in high-risk patients (73% overall). However, among coronary heart disease patients with ≥2 risk factors, only 30% attained the optional LDL-C goal of <70 mg/dL. In the entire cohort, high-density lipoprotein cholesterol was <40 mg/dL in 19%, 40 to 60 mg/dL in 55%, and >60 mg/dL in 26% of patients. Conclusions-Although there is room for improvement, particularly in very-high-risk patients, these results indicate that lipid-lowering therapy is being applied much more successfully than it was a decade ago.002B12B03002B02GHypercholestérolémie01Hypercholesterolemia01Hipercolesterolemia01Pathologie de l'appareil circulatoire02Cardiovascular disease02Aparato circulatorio patología02Traitement09Treatment09Tratamiento09Proportion10Proportion10Proporción10Homme11Human11Hombre11Lipoprotéine12Lipoprotein12Lipoproteina12CholestérolNK13CholesterolNK13ColesterolNK13Prévention14Prevention14Prevención14Dérivé de la statineNKFR15Statin derivativeNKFR15Statina derivadoNKFR15Hypolipémiant78Antilipemic agent78Hipolipemiante78Lipide37Lipids37Lípido37Maladie métabolique38Metabolic diseases38Metabolismo patología38DyslipémieNM39DyslipemiaNM39DislipemiaNM39HyperlipoprotéinémieNM40HyperlipoproteinemiaNM40HiperlipoproteinemiaNM40229OTOOTOPASCAL 09-0316929 INISTLipid Treatment Assessment Project 2 A Multinational Survey to Evaluate the Proportion of Patients Achieving Low-Density Lipoprotein Cholesterol GoalsWATERS (David D.); BROTONS (Carlos); CHIANG (Cheng-Wen); FERRIERES (Jean); FOODY (Joanne); JUKEMA (J. Wouter); SANTOS (Raul D.); VERDEJO (Juan); MESSIG (Michael); MCPHERSON (Ruth); SEUNG (Ki-Bae); TARASENKO (Lisa)Division of Cardiology, San Francisco General Hospital and the University of California/San Francisco/Etats-Unis (1 aut.); Sardenya Primary Care Center/Barcelona/Espagne (2 aut.); Cathay General Hospital and Taipei Medical University/Taipei/Taïwan (3 aut.); Department of Cardiology, Toulouse University School of Medicine, Rangueil Hospital/Toulouse/France (4 aut.); Division of Cardiovascular Medicine, Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School/Boston, Mass/Etats-Unis (5 aut.); Department of Cardiology, Leiden University Medical Center/Leiden/Pays-Bas (6 aut.); Lipid Clinic Heart Institute (InCor), University of São Paulo Hospital/São Paulo/Brésil (7 aut.); National Institute of Cardiology "Ignacio Chávez,"/Tlalpan/Mexique (8 aut.); Pfizer Inc./New York, NY/Etats-Unis (9 aut., 12 aut.); Lipid Research Laboratory, University of Ottawa Heart Institute/Ottawa/Canada (10 aut.); Department of Internal Medicine, Kangnam St Mary's Hospital, Catholic University of Korea/Seoul/Corée, République de (11 aut.)
Publication en série; Niveau analytique
Circulation : (New York, N.Y.); ISSN 0009-7322; Coden CIRCAZ; Etats-Unis; Da. 2009; Vol. 120; No. 1; Pp. 28-34; Bibl. 21 ref.AnglaisBackground-Information about physicians' adherence to cholesterol management guidelines remains scant. The present survey updates our knowledge of lipid management worldwide. Methods and Results-Lipid levels were determined at enrollment in dyslipidemic adult patients on stable lipid-lowering therapy in 9 countries. The primary end point was the success rate, defined as the proportion of patients achieving appropriate low-density lipoprotein cholesterol (LDL-C) goals for their given risk. The mean age of the 9955 evaluable patients was 62±12 years; 54% were male. Coronary disease and diabetes mellitus had been diagnosed in 30% and 31 %, respectively, and 14% were current smokers. Current treatment consisted of a statin in 75%. The proportion of patients achieving LDL-C goals according to relevant national guidelines ranged from 47% to 84% across countries. In low-, moderate-, and high-risk groups, mean LDL-C was 119, 109, and 91 mg/dL and mean high-density lipoprotein cholesterol was 62, 49, and 50 mg/dL, respectively. The success rate for LDL-C goal achievement was 86% in low-, 74% in moderate-, and 67% in high-risk patients (73% overall). However, among coronary heart disease patients with ≥2 risk factors, only 30% attained the optional LDL-C goal of <70 mg/dL. In the entire cohort, high-density lipoprotein cholesterol was <40 mg/dL in 19%, 40 to 60 mg/dL in 55%, and >60 mg/dL in 26% of patients. Conclusions-Although there is room for improvement, particularly in very-high-risk patients, these results indicate that lipid-lowering therapy is being applied much more successfully than it was a decade ago.002B12B03; 002B02GHypercholestérolémie; Pathologie de l'appareil circulatoire; Traitement; Proportion; Homme; Lipoprotéine; Cholestérol; Prévention; Dérivé de la statine; HypolipémiantLipide; Maladie métabolique; Dyslipémie; HyperlipoprotéinémieHypercholesterolemia; Cardiovascular disease; Treatment; Proportion; Human; Lipoprotein; Cholesterol; Prevention; Statin derivative; Antilipemic agentLipids; Metabolic diseases; Dyslipemia; HyperlipoproteinemiaHipercolesterolemia; Aparato circulatorio patología; Tratamiento; Proporción; Hombre; Lipoproteina; Colesterol; Prevención; Statina derivado; HipolipemianteINIST-5907.35400018799693006009-0316929
000C91 An in vivo protective response against toxic effects of the dermonecrotic protein from Loxosceles intermedia spider venom elicited by synthetic epitopesLiza FelicoriDepartamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.CNRS UMR3145 Cap Delta/Parc EuromédecineMontpellierFRA1 aut.6 aut.7 aut.8 aut.Paula B. FernandesDepartamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.Mario S. GiustaDepartamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.Clara G. DuarteDepartamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.Evanguedes KalapothakisDepartamento de Biologia Geral, ICB, Universidade Federal de Minas GeraisBRA5 aut.Christophe NguyenCNRS UMR3145 Cap Delta/Parc EuromédecineMontpellierFRA1 aut.6 aut.7 aut.8 aut.Frank MolinaCNRS UMR3145 Cap Delta/Parc EuromédecineMontpellierFRA1 aut.6 aut.7 aut.8 aut.Claude GranierCNRS UMR3145 Cap Delta/Parc EuromédecineMontpellierFRA1 aut.6 aut.7 aut.8 aut.Carlos Chavez-OlorteguiDepartamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.09-03183352009PASCAL 09-0318335 INISTPascal:09-0318335001C880264-410XVaccineVaccineAntigenic determinantNeutralizationPeptidesRecombinant proteinVaccineProtéine recombinanteDéterminant antigéniqueVaccinNeutralisationPeptide
Loxoscelism is a necrotic-hemolytic syndrome caused by bites of brown spiders belonging to the genus Loxosceles. Many approaches for the treatment of Loxosceles poisoning have already been proposed, among which administration of specific antivenom is thought to be the more specific. We have evaluated the use of peptides as immunogen to raise in rabbits an antibody response that could protect animals from a challenge by the Loxtox isoform LiD1, one of the main toxic component of Loxosceles intermedia venom. Six antigenic regions of LiD1 were mapped by using the SPOT method. The corresponding peptides were further chemically synthesized, mixed, and used as immunogens in rabbits. Control animal received recombinant LiD1 alone or together with peptides. We found that the rabbit antibody response to peptides was cross-reactive with LiD1, although only one peptide from the mix of six was immunogenic. The dermonecrotic, hemorrhagic and oedema forming activities induced by LiD1 in naive rabbits were inhibited by 82%, 35% and 35% respectively, by preincubation of LiD1 with anti-peptide antibodies prepared from immunized rabbits. Animals that were immunized with peptides or LiD1r, were found to be protected from the dermonecrotic, hemorrhagic and oedema forming activities induced by a challenge with LiD1. The protection conferred by peptides was, however, lower than that provided by the peptide protein combination or by the full-length protein. These results encourage us in the utilization of synthetic peptides for therapeutic serum development or vaccination approaches.
0264-410XVACCDEVaccine2731An in vivo protective response against toxic effects of the dermonecrotic protein from Loxosceles intermedia spider venom elicited by synthetic epitopesFELICORI (Liza)FERNANDES (Paula B.)GIUSTA (Mario S.)DUARTE (Clara G.)KALAPOTHAKIS (Evanguedes)NGUYEN (Christophe)MOLINA (Frank)GRANIER (Claude)CHAVEZ-OLORTEGUI (Carlos)Departamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas GeraisBRA1 aut.2 aut.3 aut.4 aut.9 aut.Departamento de Biologia Geral, ICB, Universidade Federal de Minas GeraisBRA5 aut.CNRS UMR3145 Cap Delta/Parc EuromédecineMontpellierFRA1 aut.6 aut.7 aut.8 aut.4201-42082009ENGINIST202893540001724301601500000© 2009 INIST-CNRS. All rights reserved.49 ref.09-0318335PAVaccineGBRLoxoscelism is a necrotic-hemolytic syndrome caused by bites of brown spiders belonging to the genus Loxosceles. Many approaches for the treatment of Loxosceles poisoning have already been proposed, among which administration of specific antivenom is thought to be the more specific. We have evaluated the use of peptides as immunogen to raise in rabbits an antibody response that could protect animals from a challenge by the Loxtox isoform LiD1, one of the main toxic component of Loxosceles intermedia venom. Six antigenic regions of LiD1 were mapped by using the SPOT method. The corresponding peptides were further chemically synthesized, mixed, and used as immunogens in rabbits. Control animal received recombinant LiD1 alone or together with peptides. We found that the rabbit antibody response to peptides was cross-reactive with LiD1, although only one peptide from the mix of six was immunogenic. The dermonecrotic, hemorrhagic and oedema forming activities induced by LiD1 in naive rabbits were inhibited by 82%, 35% and 35% respectively, by preincubation of LiD1 with anti-peptide antibodies prepared from immunized rabbits. Animals that were immunized with peptides or LiD1r, were found to be protected from the dermonecrotic, hemorrhagic and oedema forming activities induced by a challenge with LiD1. The protection conferred by peptides was, however, lower than that provided by the peptide protein combination or by the full-length protein. These results encourage us in the utilization of synthetic peptides for therapeutic serum development or vaccination approaches.002A05F04Protéine recombinante05Recombinant protein05Proteína recombinante05Déterminant antigénique06Antigenic determinant06Determinante antigénico06Vaccin07Vaccine07Vacuna07Neutralisation08Neutralization08Neutralización08Peptide09Peptides09Péptido09229OTOOTOPASCAL 09-0318335 INISTAn in vivo protective response against toxic effects of the dermonecrotic protein from Loxosceles intermedia spider venom elicited by synthetic epitopesFELICORI (Liza); FERNANDES (Paula B.); GIUSTA (Mario S.); DUARTE (Clara G.); KALAPOTHAKIS (Evanguedes); NGUYEN (Christophe); MOLINA (Frank); GRANIER (Claude); CHAVEZ-OLORTEGUI (Carlos)Departamento de Bioquímica-Imunologia, ICB, Universidade Federal de Minas Gerais/Brésil (1 aut., 2 aut., 3 aut., 4 aut., 9 aut.); Departamento de Biologia Geral, ICB, Universidade Federal de Minas Gerais/Brésil (5 aut.); CNRS UMR3145 Cap Delta/Parc Euromédecine/Montpellier/France (1 aut., 6 aut., 7 aut., 8 aut.)
Publication en série; Niveau analytique
Vaccine; ISSN 0264-410X; Coden VACCDE; Royaume-Uni; Da. 2009; Vol. 27; No. 31; Pp. 4201-4208; Bibl. 49 ref.AnglaisLoxoscelism is a necrotic-hemolytic syndrome caused by bites of brown spiders belonging to the genus Loxosceles. Many approaches for the treatment of Loxosceles poisoning have already been proposed, among which administration of specific antivenom is thought to be the more specific. We have evaluated the use of peptides as immunogen to raise in rabbits an antibody response that could protect animals from a challenge by the Loxtox isoform LiD1, one of the main toxic component of Loxosceles intermedia venom. Six antigenic regions of LiD1 were mapped by using the SPOT method. The corresponding peptides were further chemically synthesized, mixed, and used as immunogens in rabbits. Control animal received recombinant LiD1 alone or together with peptides. We found that the rabbit antibody response to peptides was cross-reactive with LiD1, although only one peptide from the mix of six was immunogenic. The dermonecrotic, hemorrhagic and oedema forming activities induced by LiD1 in naive rabbits were inhibited by 82%, 35% and 35% respectively, by preincubation of LiD1 with anti-peptide antibodies prepared from immunized rabbits. Animals that were immunized with peptides or LiD1r, were found to be protected from the dermonecrotic, hemorrhagic and oedema forming activities induced by a challenge with LiD1. The protection conferred by peptides was, however, lower than that provided by the peptide protein combination or by the full-length protein. These results encourage us in the utilization of synthetic peptides for therapeutic serum development or vaccination approaches.002A05F04Protéine recombinante; Déterminant antigénique; Vaccin; Neutralisation; PeptideRecombinant protein; Antigenic determinant; Vaccine; Neutralization; PeptidesProteína recombinante; Determinante antigénico; Vacuna; Neutralización; PéptidoINIST-20289.35400017243016015009-0318335
000C92 Bulk and surface plasmon excitations in amorphous carbon measured by core-level photoelectron spectroscopyChristian GodetPhysique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1Beaulieu 35042 RennesFRA1 aut.3 aut.4 aut.5 aut.Denis DavidInstituto de Fisica, Universidade Federal da Bahia, Campus Universitário de Ondina40.210-340 Salvador, BahiaBRA2 aut.Hussein SabbahPhysique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1Beaulieu 35042 RennesFRA1 aut.3 aut.4 aut.5 aut.Soraya Ababou-GirardPhysique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1Beaulieu 35042 RennesFRA1 aut.3 aut.4 aut.5 aut.Francine SolalPhysique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1Beaulieu 35042 RennesFRA1 aut.3 aut.4 aut.5 aut.09-03192382009PASCAL 09-0319238 INISTPascal:09-0319238001C870169-4332Appl. surf. sci.Applied surface scienceAmorphous stateAngular distributionAnnealingCarbonCore levelsElectron densityEnergy distributionHybridizationPhotoemissionSurface energySurface plasmonsUltrahigh vacuumX-ray photoelectron spectraPlasmon surfaceEtat amorpheCarboneNiveau coeurUltravideRecuitSpectre photoélectron RXHybridationDensité électronEnergie surfaceDistribution énergiePhotoémissionDistribution angulaireC79607320M
Bulk and surface plasmon excitations in amorphous carbon (a-C) films have been characterized by core-level loss spectroscopy. Atomically smooth a-C surfaces were used in their as-grown state, after UHV annealing and after covalent immobilization of dense molecular monolayers (2-4 x 1014 cm-2), either perfluorinated or labelled with an ester functionality. X-ray photoelectron spectra reveal a sp3-rich hybridization of surface C atoms, with a σ + π plasmon loss distribution centred at 29.5 ± 1 eV, characteristic of a high electron density value. For molecular grafted surfaces, the energy distribution of plasmon losses reveals new contributions in the range 15-25eV (clearly separated from the energy distribution of the bulk σ + π plasmon loss of a-C) with an increasing loss probability observed at grazing photoemission angles. A simple parameterization method is presented to derive bulk and surface plasmon loss distributions from angular core level loss spectroscopy (XPS) data, without a priori assumptions on the shape of the loss energy distributions.
0169-4332Appl. surf. sci.25513-14Bulk and surface plasmon excitations in amorphous carbon measured by core-level photoelectron spectroscopyGODET (Christian)DAVID (Denis)SABBAH (Hussein)ABABOU-GIRARD (Soraya)SOLAL (Francine)Physique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1Beaulieu 35042 RennesFRA1 aut.3 aut.4 aut.5 aut.Instituto de Fisica, Universidade Federal da Bahia, Campus Universitário de Ondina40.210-340 Salvador, BahiaBRA2 aut.6598-66062009ENGINIST160023540001849314902900000© 2009 INIST-CNRS. All rights reserved.76 ref.09-0319238PAApplied surface scienceNLDBulk and surface plasmon excitations in amorphous carbon (a-C) films have been characterized by core-level loss spectroscopy. Atomically smooth a-C surfaces were used in their as-grown state, after UHV annealing and after covalent immobilization of dense molecular monolayers (2-4 x 1014 cm-2), either perfluorinated or labelled with an ester functionality. X-ray photoelectron spectra reveal a sp3-rich hybridization of surface C atoms, with a σ + π plasmon loss distribution centred at 29.5 ± 1 eV, characteristic of a high electron density value. For molecular grafted surfaces, the energy distribution of plasmon losses reveals new contributions in the range 15-25eV (clearly separated from the energy distribution of the bulk σ + π plasmon loss of a-C) with an increasing loss probability observed at grazing photoemission angles. A simple parameterization method is presented to derive bulk and surface plasmon loss distributions from angular core level loss spectroscopy (XPS) data, without a priori assumptions on the shape of the loss energy distributions.001B70I60001B70C20MPlasmon surface01Surface plasmons01Etat amorphe02Amorphous state02CarboneNC03CarbonNC03Niveau coeur04Core levels04Ultravide06Ultrahigh vacuum06Recuit07Annealing07Spectre photoélectron RX08X-ray photoelectron spectra08Hybridation09Hybridization09Densité électron10Electron density10Energie surface11Surface energy11Distribution énergie12Energy distribution12Distribución energía12Photoémission13Photoemission13Distribution angulaire14Angular distribution14CINC327960PACINC457320MPACINC46229PASCAL 09-0319238 INISTBulk and surface plasmon excitations in amorphous carbon measured by core-level photoelectron spectroscopyGODET (Christian); DAVID (Denis); SABBAH (Hussein); ABABOU-GIRARD (Soraya); SOLAL (Francine)Physique des Surfaces et Interfaces, Institut de Physique de Rennes (CNRS UMR 6251), Université Rennes 1/Beaulieu 35042 Rennes/France (1 aut., 3 aut., 4 aut., 5 aut.); Instituto de Fisica, Universidade Federal da Bahia, Campus Universitário de Ondina/40.210-340 Salvador, Bahia/Brésil (2 aut.)
Publication en série; Niveau analytique
Applied surface science; ISSN 0169-4332; Pays-Bas; Da. 2009; Vol. 255; No. 13-14; Pp. 6598-6606; Bibl. 76 ref.AnglaisBulk and surface plasmon excitations in amorphous carbon (a-C) films have been characterized by core-level loss spectroscopy. Atomically smooth a-C surfaces were used in their as-grown state, after UHV annealing and after covalent immobilization of dense molecular monolayers (2-4 x 1014 cm-2), either perfluorinated or labelled with an ester functionality. X-ray photoelectron spectra reveal a sp3-rich hybridization of surface C atoms, with a σ + π plasmon loss distribution centred at 29.5 ± 1 eV, characteristic of a high electron density value. For molecular grafted surfaces, the energy distribution of plasmon losses reveals new contributions in the range 15-25eV (clearly separated from the energy distribution of the bulk σ + π plasmon loss of a-C) with an increasing loss probability observed at grazing photoemission angles. A simple parameterization method is presented to derive bulk and surface plasmon loss distributions from angular core level loss spectroscopy (XPS) data, without a priori assumptions on the shape of the loss energy distributions.001B70I60; 001B70C20MPlasmon surface; Etat amorphe; Carbone; Niveau coeur; Ultravide; Recuit; Spectre photoélectron RX; Hybridation; Densité électron; Energie surface; Distribution énergie; Photoémission; Distribution angulaire; C; 7960; 7320MSurface plasmons; Amorphous state; Carbon; Core levels; Ultrahigh vacuum; Annealing; X-ray photoelectron spectra; Hybridization; Electron density; Surface energy; Energy distribution; Photoemission; Angular distributionDistribución energíaINIST-16002.35400018493149029009-0319238
000C93 Clustering constrained symbolic dataFrancisco De A. T. De CarvalhoCentro de Informatica, Cln/UFPE, Av. Prof Luiz Freire, s/n, Cidade UniversitariaCEP 50.740-540, Recife. PEBRA1 aut.Marc CsernelINRIA, Rocquencourt, Domaine de Voluceau, Rocquencourt, B.P. 10578153 le ChesnayFRA2 aut.3 aut.University of Paris-Dauphine, Place du Maréchal de Lattre de Tassigny75775 ParisFRA2 aut.Yves LechevallierINRIA, Rocquencourt, Domaine de Voluceau, Rocquencourt, B.P. 10578153 le ChesnayFRA2 aut.3 aut.09-03199592009PASCAL 09-0319959 INISTPascal:09-0319959001C860167-8655Pattern recogn. lett.Pattern recognition lettersAlgorithmAutomatic classificationCombinatorial methodComputation timeData analysisDatabaseNormal formPolynomial timeSignal classificationSimilarityClassification automatiqueBase de donnéesAnalyse donnéeMéthode combinatoireTemps calculTemps polynomialSimilitudeAlgorithmeForme normaleClassification signal
Dealing with multi-valued data has become quite common in both the framework of databases as well as data analysis. Such data can be constrained by domain knowledge provided by relations between the variables and these relations are expressed by rules. However, such knowledge can introduce a combinatorial increase in the computation time depending on the number of rules. In this paper, we present a way to cluster such data in polynomial time. The method is based on the following: a decomposition of the data according to the rules, a suitable dissimilarity function and a clustering algorithm based on dissimilarities.
0167-8655PRLEDGPattern recogn. lett.3011Clustering constrained symbolic dataDE A. T. DE CARVALHO (Francisco)CSERNEL (Marc)LECHEVALLIER (Yves)Centro de Informatica, Cln/UFPE, Av. Prof Luiz Freire, s/n, Cidade UniversitariaCEP 50.740-540, Recife. PEBRA1 aut.INRIA, Rocquencourt, Domaine de Voluceau, Rocquencourt, B.P. 10578153 le ChesnayFRA2 aut.3 aut.University of Paris-Dauphine, Place du Maréchal de Lattre de Tassigny75775 ParisFRA2 aut.1037-10452009ENGINIST202223540001875005001000000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0319959PAPattern recognition lettersNLDDealing with multi-valued data has become quite common in both the framework of databases as well as data analysis. Such data can be constrained by domain knowledge provided by relations between the variables and these relations are expressed by rules. However, such knowledge can introduce a combinatorial increase in the computation time depending on the number of rules. In this paper, we present a way to cluster such data in polynomial time. The method is based on the following: a decomposition of the data according to the rules, a suitable dissimilarity function and a clustering algorithm based on dissimilarities.001D04A04A1Classification automatique01Automatic classification01Clasificación automática01Base de données02Database02Base dato02Analyse donnée03Data analysis03Análisis datos03Méthode combinatoire04Combinatorial method04Método combinatorio04Temps calcul05Computation time05Tiempo computación05Temps polynomial06Polynomial time06Tiempo polinomial06Similitude07Similarity07Similitud07Algorithme08Algorithm08Algoritmo08Forme normale09Normal form09Forma normal09Classification signal31Signal classification31229OTOOTOPASCAL 09-0319959 INISTClustering constrained symbolic dataDE A. T. DE CARVALHO (Francisco); CSERNEL (Marc); LECHEVALLIER (Yves)Centro de Informatica, Cln/UFPE, Av. Prof Luiz Freire, s/n, Cidade Universitaria/CEP 50.740-540, Recife. PE/Brésil (1 aut.); INRIA, Rocquencourt, Domaine de Voluceau, Rocquencourt, B.P. 105/78153 le Chesnay/France (2 aut., 3 aut.); University of Paris-Dauphine, Place du Maréchal de Lattre de Tassigny/75775 Paris/France (2 aut.)
Publication en série; Niveau analytique
Pattern recognition letters; ISSN 0167-8655; Coden PRLEDG; Pays-Bas; Da. 2009; Vol. 30; No. 11; Pp. 1037-1045; Bibl. 1/2 p.AnglaisDealing with multi-valued data has become quite common in both the framework of databases as well as data analysis. Such data can be constrained by domain knowledge provided by relations between the variables and these relations are expressed by rules. However, such knowledge can introduce a combinatorial increase in the computation time depending on the number of rules. In this paper, we present a way to cluster such data in polynomial time. The method is based on the following: a decomposition of the data according to the rules, a suitable dissimilarity function and a clustering algorithm based on dissimilarities.001D04A04A1Classification automatique; Base de données; Analyse donnée; Méthode combinatoire; Temps calcul; Temps polynomial; Similitude; Algorithme; Forme normale; Classification signalAutomatic classification; Database; Data analysis; Combinatorial method; Computation time; Polynomial time; Similarity; Algorithm; Normal form; Signal classificationClasificación automática; Base dato; Análisis datos; Método combinatorio; Tiempo computación; Tiempo polinomial; Similitud; Algoritmo; Forma normalINIST-20222.35400018750050010009-0319959
000C94 Age and mass of solar twins constrained by lithium abundanceJ. D. Jr Do NascimentoDepartamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do NorteCEP: 59072-970 Natal, RNBRA1 aut.2 aut.7 aut.M. CastroDepartamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do NorteCEP: 59072-970 Natal, RNBRA1 aut.2 aut.7 aut.J. MelendezCentro de Astrofisica da Universidade do PortoRua das Estrelas, 4150-762 PortoPRT3 aut.4 aut.M. BazotCentro de Astrofisica da Universidade do PortoRua das Estrelas, 4150-762 PortoPRT3 aut.4 aut.S. TheadoLaboratoire d'Astrophysique de Toulouse et Tarbes - UMR 5572 - Université Paul Sabatier - CNRS, 14 Av. E. Belin31400 ToulouseFRA5 aut.G. F. Porto De MelloUniversidade Federal do Rio de Janeiro, Observatório do Valongo, Ladeira do Pedro Antônio, 43Rio de Janeiro, CEP: 20080-090BRA6 aut.J. R. De MedeirosDepartamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do NorteCEP: 59072-970 Natal, RNBRA1 aut.2 aut.7 aut.09-03199872009PASCAL 09-0319987 INISTPascal:09-0319987001C850004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)AgeHorizontal-branch starsMetallicityMixingStandard modelStellar abundanceStellar evolutionStellar massSunAgeAbondance stellaireMélangeageModèle standardMétallicitéMasse stellaireEtoile branche horizontaleEvolution stellaireSoleil
Aims. We analyze the non-standard mixing history of the solar twins HIP 55 459, HIP 79 672, HIP 56 948, HIP 73 815, and HIP 100 963, to determine as precisely as possible their mass and age. Methods. We computed a grid of evolutionary models with non-standard mixing at several metallicities with the Toulouse-Geneva code for a range of stellar masses assuming an error bar of ±50 K in Teff. We choose the evolutionary model that reproduces accurately the observed low lithium abundances observed in the solar twins. Results. Our best-fit model for each solar twin provides a mass and age solution constrained by their Li content and Teff determination. HIP 56 948 is the most likely solar-twin candidate at the present time and our analysis infers a mass of 0.994 ± 0.004 M◦. and an age of 4.71 ± 1.39 Gyr. Conclusions. Non-standard mixing is required to explain the low Li abundances observed in solar twins. Li depletion due to additional mixing in solar twins is strongly mass dependent. An accurate lithium abundance measurement and non-standard models provide more precise information about the age and mass more robustly than determined by classical methods alone.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)5012Age and mass of solar twins constrained by lithium abundanceDO NASCIMENTO (J. D. JR)CASTRO (M.)MELENDEZ (J.)BAZOT (M.)THEADO (S.)PORTO DE MELLO (G. F.)DE MEDEIROS (J. R.)Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do NorteCEP: 59072-970 Natal, RNBRA1 aut.2 aut.7 aut.Centro de Astrofisica da Universidade do PortoRua das Estrelas, 4150-762 PortoPRT3 aut.4 aut.Laboratoire d'Astrophysique de Toulouse et Tarbes - UMR 5572 - Université Paul Sabatier - CNRS, 14 Av. E. Belin31400 ToulouseFRA5 aut.Universidade Federal do Rio de Janeiro, Observatório do Valongo, Ladeira do Pedro Antônio, 43Rio de Janeiro, CEP: 20080-090BRA6 aut.687-6942009ENGINIST141763540001724470902600000© 2009 INIST-CNRS. All rights reserved.1/2 p.09-0319987PAAstronomy and astrophysics : (Berlin. Print)FRAAims. We analyze the non-standard mixing history of the solar twins HIP 55 459, HIP 79 672, HIP 56 948, HIP 73 815, and HIP 100 963, to determine as precisely as possible their mass and age. Methods. We computed a grid of evolutionary models with non-standard mixing at several metallicities with the Toulouse-Geneva code for a range of stellar masses assuming an error bar of ±50 K in Teff. We choose the evolutionary model that reproduces accurately the observed low lithium abundances observed in the solar twins. Results. Our best-fit model for each solar twin provides a mass and age solution constrained by their Li content and Teff determination. HIP 56 948 is the most likely solar-twin candidate at the present time and our analysis infers a mass of 0.994 ± 0.004 M◦. and an age of 4.71 ± 1.39 Gyr. Conclusions. Non-standard mixing is required to explain the low Li abundances observed in solar twins. Li depletion due to additional mixing in solar twins is strongly mass dependent. An accurate lithium abundance measurement and non-standard models provide more precise information about the age and mass more robustly than determined by classical methods alone.001E03Age26Age26Edad26Abondance stellaire27Stellar abundance27Abundancia estelar27Mélangeage28Mixing28Modèle standard29Standard model29Métallicité30Metallicity30Metalicidad30Masse stellaire31Stellar mass31Etoile branche horizontale32Horizontal-branch stars32Evolution stellaire33Stellar evolution33Soleil34Sun34229OTOOTOPASCAL 09-0319987 INISTAge and mass of solar twins constrained by lithium abundanceDO NASCIMENTO (J. D. JR); CASTRO (M.); MELENDEZ (J.); BAZOT (M.); THEADO (S.); PORTO DE MELLO (G. F.); DE MEDEIROS (J. R.)Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte/CEP: 59072-970 Natal, RN/Brésil (1 aut., 2 aut., 7 aut.); Centro de Astrofisica da Universidade do Porto/Rua das Estrelas, 4150-762 Porto/Portugal (3 aut., 4 aut.); Laboratoire d'Astrophysique de Toulouse et Tarbes - UMR 5572 - Université Paul Sabatier - CNRS, 14 Av. E. Belin/31400 Toulouse/France (5 aut.); Universidade Federal do Rio de Janeiro, Observatório do Valongo, Ladeira do Pedro Antônio, 43/Rio de Janeiro, CEP: 20080-090/Brésil (6 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 501; No. 2; Pp. 687-694; Bibl. 1/2 p.AnglaisAims. We analyze the non-standard mixing history of the solar twins HIP 55 459, HIP 79 672, HIP 56 948, HIP 73 815, and HIP 100 963, to determine as precisely as possible their mass and age. Methods. We computed a grid of evolutionary models with non-standard mixing at several metallicities with the Toulouse-Geneva code for a range of stellar masses assuming an error bar of ±50 K in Teff. We choose the evolutionary model that reproduces accurately the observed low lithium abundances observed in the solar twins. Results. Our best-fit model for each solar twin provides a mass and age solution constrained by their Li content and Teff determination. HIP 56 948 is the most likely solar-twin candidate at the present time and our analysis infers a mass of 0.994 ± 0.004 M◦. and an age of 4.71 ± 1.39 Gyr. Conclusions. Non-standard mixing is required to explain the low Li abundances observed in solar twins. Li depletion due to additional mixing in solar twins is strongly mass dependent. An accurate lithium abundance measurement and non-standard models provide more precise information about the age and mass more robustly than determined by classical methods alone.001E03Age; Abondance stellaire; Mélangeage; Modèle standard; Métallicité; Masse stellaire; Etoile branche horizontale; Evolution stellaire; SoleilAge; Stellar abundance; Mixing; Standard model; Metallicity; Stellar mass; Horizontal-branch stars; Stellar evolution; SunEdad; Abundancia estelar; MetalicidadINIST-14176.35400017244709026009-0319987
000C95 First stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giantsP. BonifacioCIFIST Marie Curie Excellence TeamINC1 aut.8 aut.GEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Trieste, via Tiepolo 1134143 TriesteITA1 aut.10 aut.M. SpiteGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.R. CayrelGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.V. HillGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.Laboratoire Cassiopée UMR 6202, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d'AzurFRA4 aut.F. SpiteGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.P. FrancoisGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.B. PlezGRAAL, Université de Montpellier II34095 MontpellierFRA7 aut.Department of Physics and Astronomy, Uppsala Astronomical Observatory, Box 515751 20 UppsalaSWE7 aut.H.-G. LudwigCIFIST Marie Curie Excellence TeamINC1 aut.8 aut.GEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.E. CaffauGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.P. MolaroGEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Trieste, via Tiepolo 1134143 TriesteITA1 aut.10 aut.E. DepagneLas Cumbres ObservatoryGoleta, CA 93117USA11 aut.J. AndersenThe Niels Bohr Institute, Astronomy Group, Juliane Maries Vej 302100 CopenhagenDNK12 aut.15 aut.Nordic Optical Telescope, Apartado 47438700 Santa Cruz de La PalmaESP12 aut.B. BarbuyIAG, Universidade de Sao Paulo, Depto. de Astronomia, Rua do Matao 1226Sao Paulo 05508-900BRA13 aut.T. C. BeersDepartment of Physics & Astronomy, CSCE: Center for the Study of Cosmic Evolution, and JINA: Joint Institute for Nuclear Astrophysics, Michigan State UniversityEast Lansing, MI 48824USA14 aut.B. NordströmThe Niels Bohr Institute, Astronomy Group, Juliane Maries Vej 302100 CopenhagenDNK12 aut.15 aut.F. PrimasEuropean Southern Observatory, Karl Schwarzschild-Str. 285749 Garching bei MünchenDEU16 aut.09-03200062009PASCAL 09-0320006 INISTPascal:09-0320006001C840004-6361Astron. astrophys. : (Berl., Print)Astronomy and astrophysics : (Berlin. Print)Atmosphere modelChemical evolutionChemical modelConsistencyCorrectionsGalactic evolutionGalaxiesGalaxy evolutionGalaxy haloGiant starsMetal-poor starsMetallicityMilky WayMixingObservablesPopulation IIStellar abundanceSupernovaeAbondance stellaireEtoile pauvre en métalEvolution chimiqueGalaxiesEtoile géanteMélangeageObservableModèle atmosphèreConsistanceMétallicitéCorrectionEvolution galactiqueModèle chimiqueHalo galaxiesEvolution galaxiesPopulation type IISupernovaVoie lactée
Context. The detailed chemical abundances of extremely metal-poor (EMP) stars are key guides to understanding the early chemical evolution of the Galaxy. Most existing data, however, treat giant stars that may have experienced internal mixing later. Aims. We aim to compare the results for giants with new, accurate abundances for all observable elements in 18 EMP turnoff stars. Methods. VLT/UVES spectra at R ∼ 45 000 and S/N ∼ 130 per pixel (λλ 330-1000 nm) are analysed with OSMARCS model atmospheres and the TURBOSPECTRUM code to derive abundances for C, Mg, Si, Ca, Sc, Ti, Cr, Mn, Co, Ni, Zn, Sr, and Ba. Results. For Ca, Ni, Sr, and Ba, we find excellent consistency with our earlier sample of EMP giants, at all metallicities. However, our abundances of C, Sc, Ti, Cr, Mn and Co are ∼0.2 dex larger than in giants of similar metallicity. Mg and Si abundances are ∼0.2 dex lower (the giant [Mg/Fe] values are slightly revised), while Zn is again ∼0.4 dex higher than in giants of similar [Fe/H] (6 stars only). Conclusions. For C, the dwarf/giant discrepancy could possibly have an astrophysical cause, but for the other elements it must arise from shortcomings in the analysis. Approximate computations of granulation (3D) effects yield smaller corrections for giants than for dwarfs, but suggest that this is an unlikely explanation, except perhaps for C, Cr, and Mn. NLTE computations for Na and Al provide consistent abundances between dwarfs and giants, unlike the LTE results, and would be highly desirable for the other discrepant elements as well. Meanwhile, we recommend using the giant abundances as reference data for Galactic chemical evolution models.
0004-6361AAEJAFAstron. astrophys. : (Berl., Print)5012First stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giantsBONIFACIO (P.)SPITE (M.)CAYREL (R.)HILL (V.)SPITE (F.)FRANCOIS (P.)PLEZ (B.)LUDWIG (H.-G.)CAFFAU (E.)MOLARO (P.)DEPAGNE (E.)ANDERSEN (J.)BARBUY (B.)BEERS (T. C.)NORDSTRÖM (B.)PRIMAS (F.)CIFIST Marie Curie Excellence TeamINC1 aut.8 aut.GEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 MeudonFRA1 aut.2 aut.3 aut.4 aut.5 aut.6 aut.8 aut.9 aut.10 aut.Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Trieste, via Tiepolo 1134143 TriesteITA1 aut.10 aut.Laboratoire Cassiopée UMR 6202, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d'AzurFRA4 aut.GRAAL, Université de Montpellier II34095 MontpellierFRA7 aut.Department of Physics and Astronomy, Uppsala Astronomical Observatory, Box 515751 20 UppsalaSWE7 aut.Las Cumbres ObservatoryGoleta, CA 93117USA11 aut.The Niels Bohr Institute, Astronomy Group, Juliane Maries Vej 302100 CopenhagenDNK12 aut.15 aut.Nordic Optical Telescope, Apartado 47438700 Santa Cruz de La PalmaESP12 aut.IAG, Universidade de Sao Paulo, Depto. de Astronomia, Rua do Matao 1226Sao Paulo 05508-900BRA13 aut.Department of Physics & Astronomy, CSCE: Center for the Study of Cosmic Evolution, and JINA: Joint Institute for Nuclear Astrophysics, Michigan State UniversityEast Lansing, MI 48824USA14 aut.European Southern Observatory, Karl Schwarzschild-Str. 285749 Garching bei MünchenDEU16 aut.519-5302009ENGINIST141763540001724470901300000© 2009 INIST-CNRS. All rights reserved.3/4 p.09-0320006PAAstronomy and astrophysics : (Berlin. Print)FRAContext. The detailed chemical abundances of extremely metal-poor (EMP) stars are key guides to understanding the early chemical evolution of the Galaxy. Most existing data, however, treat giant stars that may have experienced internal mixing later. Aims. We aim to compare the results for giants with new, accurate abundances for all observable elements in 18 EMP turnoff stars. Methods. VLT/UVES spectra at R ∼ 45 000 and S/N ∼ 130 per pixel (λλ 330-1000 nm) are analysed with OSMARCS model atmospheres and the TURBOSPECTRUM code to derive abundances for C, Mg, Si, Ca, Sc, Ti, Cr, Mn, Co, Ni, Zn, Sr, and Ba. Results. For Ca, Ni, Sr, and Ba, we find excellent consistency with our earlier sample of EMP giants, at all metallicities. However, our abundances of C, Sc, Ti, Cr, Mn and Co are ∼0.2 dex larger than in giants of similar metallicity. Mg and Si abundances are ∼0.2 dex lower (the giant [Mg/Fe] values are slightly revised), while Zn is again ∼0.4 dex higher than in giants of similar [Fe/H] (6 stars only). Conclusions. For C, the dwarf/giant discrepancy could possibly have an astrophysical cause, but for the other elements it must arise from shortcomings in the analysis. Approximate computations of granulation (3D) effects yield smaller corrections for giants than for dwarfs, but suggest that this is an unlikely explanation, except perhaps for C, Cr, and Mn. NLTE computations for Na and Al provide consistent abundances between dwarfs and giants, unlike the LTE results, and would be highly desirable for the other discrepant elements as well. Meanwhile, we recommend using the giant abundances as reference data for Galactic chemical evolution models.001E03Abondance stellaire26Stellar abundance26Abundancia estelar26Etoile pauvre en métal27Metal-poor stars27Evolution chimique28Chemical evolution28Evolución química28Galaxies29Galaxies29Etoile géante30Giant stars30Mélangeage31Mixing31Observable32Observables32Modèle atmosphère33Atmosphere model33Modelo atmósfera33Consistance34Consistency34Consistencia34Métallicité35Metallicity35Metalicidad35Correction36Corrections36Evolution galactique37Galactic evolution37Modèle chimique38Chemical model38Modelo químico38Halo galaxies39Galaxy halo39Halo galaxia39Evolution galaxies40Galaxy evolution40Evolución galaxias40Population type II41Population II41Población estelar II41Supernova42Supernovae42Voie lactée43Milky Way43229OTOOTOPASCAL 09-0320006 INISTFirst stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giantsBONIFACIO (P.); SPITE (M.); CAYREL (R.); HILL (V.); SPITE (F.); FRANCOIS (P.); PLEZ (B.); LUDWIG (H.-G.); CAFFAU (E.); MOLARO (P.); DEPAGNE (E.); ANDERSEN (J.); BARBUY (B.); BEERS (T. C.); NORDSTRÖM (B.); PRIMAS (F.)CIFIST Marie Curie Excellence Team/Inconnu (1 aut., 8 aut.); GEPI, Observatoire de Paris, CNRS, Université Paris Diderot; Place Jules Janssen 92190 Meudon/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 8 aut., 9 aut., 10 aut.); Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Trieste, via Tiepolo 11/34143 Trieste/Italie (1 aut., 10 aut.); Laboratoire Cassiopée UMR 6202, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d'Azur/France (4 aut.); GRAAL, Université de Montpellier II/34095 Montpellier/France (7 aut.); Department of Physics and Astronomy, Uppsala Astronomical Observatory, Box 515/751 20 Uppsala/Suède (7 aut.); Las Cumbres Observatory/Goleta, CA 93117/Etats-Unis (11 aut.); The Niels Bohr Institute, Astronomy Group, Juliane Maries Vej 30/2100 Copenhagen/Danemark (12 aut., 15 aut.); Nordic Optical Telescope, Apartado 474/38700 Santa Cruz de La Palma/Espagne (12 aut.); IAG, Universidade de Sao Paulo, Depto. de Astronomia, Rua do Matao 1226/Sao Paulo 05508-900/Brésil (13 aut.); Department of Physics & Astronomy, CSCE: Center for the Study of Cosmic Evolution, and JINA: Joint Institute for Nuclear Astrophysics, Michigan State University/East Lansing, MI 48824/Etats-Unis (14 aut.); European Southern Observatory, Karl Schwarzschild-Str. 2/85749 Garching bei München/Allemagne (16 aut.)
Publication en série; Niveau analytique
Astronomy and astrophysics : (Berlin. Print); ISSN 0004-6361; Coden AAEJAF; France; Da. 2009; Vol. 501; No. 2; Pp. 519-530; Bibl. 3/4 p.AnglaisContext. The detailed chemical abundances of extremely metal-poor (EMP) stars are key guides to understanding the early chemical evolution of the Galaxy. Most existing data, however, treat giant stars that may have experienced internal mixing later. Aims. We aim to compare the results for giants with new, accurate abundances for all observable elements in 18 EMP turnoff stars. Methods. VLT/UVES spectra at R ∼ 45 000 and S/N ∼ 130 per pixel (λλ 330-1000 nm) are analysed with OSMARCS model atmospheres and the TURBOSPECTRUM code to derive abundances for C, Mg, Si, Ca, Sc, Ti, Cr, Mn, Co, Ni, Zn, Sr, and Ba. Results. For Ca, Ni, Sr, and Ba, we find excellent consistency with our earlier sample of EMP giants, at all metallicities. However, our abundances of C, Sc, Ti, Cr, Mn and Co are ∼0.2 dex larger than in giants of similar metallicity. Mg and Si abundances are ∼0.2 dex lower (the giant [Mg/Fe] values are slightly revised), while Zn is again ∼0.4 dex higher than in giants of similar [Fe/H] (6 stars only). Conclusions. For C, the dwarf/giant discrepancy could possibly have an astrophysical cause, but for the other elements it must arise from shortcomings in the analysis. Approximate computations of granulation (3D) effects yield smaller corrections for giants than for dwarfs, but suggest that this is an unlikely explanation, except perhaps for C, Cr, and Mn. NLTE computations for Na and Al provide consistent abundances between dwarfs and giants, unlike the LTE results, and would be highly desirable for the other discrepant elements as well. Meanwhile, we recommend using the giant abundances as reference data for Galactic chemical evolution models.001E03Abondance stellaire; Etoile pauvre en métal; Evolution chimique; Galaxies; Etoile géante; Mélangeage; Observable; Modèle atmosphère; Consistance; Métallicité; Correction; Evolution galactique; Modèle chimique; Halo galaxies; Evolution galaxies; Population type II; Supernova; Voie lactéeStellar abundance; Metal-poor stars; Chemical evolution; Galaxies; Giant stars; Mixing; Observables; Atmosphere model; Consistency; Metallicity; Corrections; Galactic evolution; Chemical model; Galaxy halo; Galaxy evolution; Population II; Supernovae; Milky WayAbundancia estelar; Evolución química; Modelo atmósfera; Consistencia; Metalicidad; Modelo químico; Halo galaxia; Evolución galaxias; Población estelar IIINIST-14176.35400017244709013009-0320006
000C96 Potassium permanganate oxidation of phenanthrene and pyrene in contaminated soilsPaula Tereza De Souza E SilvaLaboratoire des Sciences du Génie Chimique, Nancy-Université, CNRS, 1 rue Grandville, BP2045154001 NancyFRA1 aut.4 aut.Departamento de Química Fundamental, Universidade Federal de Pernambuco, Cidade Universitária50740-250, Recife, PEBRA1 aut.3 aut.Valdinete Lins Da SilvaDepartamento de Engenharia Química, Universidade Federal de Pernambuco, Cidade Universitária50740-250, Recife, PEBRA2 aut.Benicio Neto De BarrosDepartamento de Química Fundamental, Universidade Federal de Pernambuco, Cidade Universitária50740-250, Recife, PEBRA1 aut.3 aut.Marie-Odile SimonnotLaboratoire des Sciences du Génie Chimique, Nancy-Université, CNRS, 1 rue Grandville, BP2045154001 NancyFRA1 aut.4 aut.09-03204722009PASCAL 09-0320472 INISTPascal:09-0320472001C830304-3894J. hazard. mater.Journal of hazardous materialsBatchwiseContaminationDecontaminationDesignFactorial designFenton reactionGround waterHydrocarbonOxidationPermanganatesPhenanthrenePolycyclic aromatic compoundPyreneSoil pollutionWater treatmentPermanganateOxydationPhénanthrènePyrènePollution solTraitement eauComposé aromatique polycycliqueHydrocarbureContaminationEau souterraineConceptionEn discontinuPlan factorielRéaction FentonDécontamination
Potassium permanganate, widely used in water treatment, has shown its applicability to reduce PAH contamination in groundwater and soils. The first stage to design a treatment at the site scale is the feasibility study at the bench scale, generally performed by means of batch experiments. The aim of the present contribution was to investigate the influence of two factors on PAH degradation in spiked soils, following the method of factorial designs. These factors were the weight ratio KMnO4/PAH and the reaction time. Three factorial designs were performed and batch experiments were run to study the degradation of phenanthrene and pyrene on soils spiked at different concentrations, between 700 and 2100 mg kg-1. We showed that treatment with potassium permanganate significantly reduced PAH concentration, but pyrene was more recalcitrant than phenanthrene. Both variables had negative main effects and a positive two-factor interaction effect: increasing the weight ratio or the reaction time enhanced PAH degradation but the reduction produced by the two factors was lower than the sum of the individual contributions. The comparison of these results with results that we published previously under comparable conditions showed that Fenton's reagent was more efficient than potassium permanganate.
0304-3894JHMAD9J. hazard. mater.1682-3Potassium permanganate oxidation of phenanthrene and pyrene in contaminated soilsDE SOUZA E SILVA (Paula Tereza)LINS DA SILVA (Valdinete)DE BARROS (Benicio NETO)SIMONNOT (Marie-Odile)Laboratoire des Sciences du Génie Chimique, Nancy-Université, CNRS, 1 rue Grandville, BP2045154001 NancyFRA1 aut.4 aut.Departamento de Química Fundamental, Universidade Federal de Pernambuco, Cidade Universitária50740-250, Recife, PEBRA1 aut.3 aut.Departamento de Engenharia Química, Universidade Federal de Pernambuco, Cidade Universitária50740-250, Recife, PEBRA2 aut.1269-12732009ENGINIST157083540001875042310200000© 2009 INIST-CNRS. All rights reserved.30 ref.09-0320472PAJournal of hazardous materialsNLDPotassium permanganate, widely used in water treatment, has shown its applicability to reduce PAH contamination in groundwater and soils. The first stage to design a treatment at the site scale is the feasibility study at the bench scale, generally performed by means of batch experiments. The aim of the present contribution was to investigate the influence of two factors on PAH degradation in spiked soils, following the method of factorial designs. These factors were the weight ratio KMnO4/PAH and the reaction time. Three factorial designs were performed and batch experiments were run to study the degradation of phenanthrene and pyrene on soils spiked at different concentrations, between 700 and 2100 mg kg-1. We showed that treatment with potassium permanganate significantly reduced PAH concentration, but pyrene was more recalcitrant than phenanthrene. Both variables had negative main effects and a positive two-factor interaction effect: increasing the weight ratio or the reaction time enhanced PAH degradation but the reduction produced by the two factors was lower than the sum of the individual contributions. The comparison of these results with results that we published previously under comparable conditions showed that Fenton's reagent was more efficient than potassium permanganate.001D16D05001D07H001D16A04BPermanganateNA01PermanganatesNA01PermanganatoNA01Oxydation02Oxidation02Oxidación02PhénanthrèneNK03PhenanthreneNK03FenantrenoNK03PyrèneNKFX04PyreneNKFX04PirenoNKFX04Pollution sol05Soil pollution05Polución suelo05Traitement eau06Water treatment06Tratamiento agua06Composé aromatique polycycliqueFX07Polycyclic aromatic compoundFX07Compuesto aromático policíclicoFX07HydrocarbureFX08HydrocarbonFX08HidrocarburoFX08Contamination09Contamination09Contaminación09Eau souterraine10Ground water10Agua subterránea10Conception11Design11Diseño11En discontinu12Batchwise12En discontinuo12Plan factoriel13Factorial design13Plan factorial13Réaction Fenton14Fenton reaction14Reacción Fenton14Décontamination15Decontamination15Descontaminación15Polluant organique persistant16Persistent organic pollutant16Contaminante organico persistente16Composé organiqueNA17Organic compoundsNA17Compuesto orgánicoNA17229OTOOTOPASCAL 09-0320472 INISTPotassium permanganate oxidation of phenanthrene and pyrene in contaminated soilsDE SOUZA E SILVA (Paula Tereza); LINS DA SILVA (Valdinete); DE BARROS (Benicio NETO); SIMONNOT (Marie-Odile)Laboratoire des Sciences du Génie Chimique, Nancy-Université, CNRS, 1 rue Grandville, BP20451/54001 Nancy/France (1 aut., 4 aut.); Departamento de Química Fundamental, Universidade Federal de Pernambuco, Cidade Universitária/50740-250, Recife, PE/Brésil (1 aut., 3 aut.); Departamento de Engenharia Química, Universidade Federal de Pernambuco, Cidade Universitária/50740-250, Recife, PE/Brésil (2 aut.)
Publication en série; Niveau analytique
Journal of hazardous materials; ISSN 0304-3894; Coden JHMAD9; Pays-Bas; Da. 2009; Vol. 168; No. 2-3; Pp. 1269-1273; Bibl. 30 ref.AnglaisPotassium permanganate, widely used in water treatment, has shown its applicability to reduce PAH contamination in groundwater and soils. The first stage to design a treatment at the site scale is the feasibility study at the bench scale, generally performed by means of batch experiments. The aim of the present contribution was to investigate the influence of two factors on PAH degradation in spiked soils, following the method of factorial designs. These factors were the weight ratio KMnO4/PAH and the reaction time. Three factorial designs were performed and batch experiments were run to study the degradation of phenanthrene and pyrene on soils spiked at different concentrations, between 700 and 2100 mg kg-1. We showed that treatment with potassium permanganate significantly reduced PAH concentration, but pyrene was more recalcitrant than phenanthrene. Both variables had negative main effects and a positive two-factor interaction effect: increasing the weight ratio or the reaction time enhanced PAH degradation but the reduction produced by the two factors was lower than the sum of the individual contributions. The comparison of these results with results that we published previously under comparable conditions showed that Fenton's reagent was more efficient than potassium permanganate.001D16D05; 001D07H; 001D16A04BPermanganate; Oxydation; Phénanthrène; Pyrène; Pollution sol; Traitement eau; Composé aromatique polycyclique; Hydrocarbure; Contamination; Eau souterraine; Conception; En discontinu; Plan factoriel; Réaction Fenton; DécontaminationPolluant organique persistant; Composé organiquePermanganates; Oxidation; Phenanthrene; Pyrene; Soil pollution; Water treatment; Polycyclic aromatic compound; Hydrocarbon; Contamination; Ground water; Design; Batchwise; Factorial design; Fenton reaction; DecontaminationPersistent organic pollutant; Organic compoundsPermanganato; Oxidación; Fenantreno; Pireno; Polución suelo; Tratamiento agua; Compuesto aromático policíclico; Hidrocarburo; Contaminación; Agua subterránea; Diseño; En discontinuo; Plan factorial; Reacción Fenton; DescontaminaciónINIST-15708.35400018750423102009-0320472
000C97 Exploration of α-pinene degradation pathway of Pseudomonas rhodesiae CIP 107491. Application to novalic acid production in a bioreactorDenis LinaresLaboratoire de Génie Chimique et Biochimique, Polytech'Clermont-Ferrand, Université Blaise Pascal, BP 20663174 AubièreFRA1 aut.2 aut.3 aut.Pierre FontanilleLaboratoire de Génie Chimique et Biochimique, Polytech'Clermont-Ferrand, Université Blaise Pascal, BP 20663174 AubièreFRA1 aut.2 aut.3 aut.Christian LarrocheLaboratoire de Génie Chimique et Biochimique, Polytech'Clermont-Ferrand, Université Blaise Pascal, BP 20663174 AubièreFRA1 aut.2 aut.3 aut.09-03210992009PASCAL 09-0321099 INISTPascal:09-0321099001C820963-9969Food res. int.Food research internationalApplicationBioreactorDegradationMetabolic pathwayPineneProductionPseudomonasTerpenePinèneDégradationPseudomonasApplicationProductionBioréacteurTerpèneVoie métabolique
α-Pinene degradation pathway of Pseudomonas rhodesiae CIP 107491, which includes flavoring molecules like cis-2-methyl-5-isopropylhexa-2,5-dienal (isonovalal) and trans-2-methyl-5-isopropylhexa-2,5-dienoic acid (novalic acid) has been extensively studied. Studies took into account biotic and abiotic degradation phenomena, which involved isonovalal and its trans isomer, novalal. Data showed that gas stripping of aldehydes, a spontaneous autooxidation of isonovalal into isonovalic acid (cis form of novalic acid) and a cofactor-dependent isomerization of isonovalal into novalal occurred. Novalic acid was not an end product and was transformed into 3,4-dimethylpentanoic acid by fresh (non permeabilized) cells with a production yield of 40%, while isonovalic acid was not consumed. A three main steps metabolic scheme was outlined to explain α-pinene oxide bioconversion into novalic acid. These data enabled to perform an optimized bioconversion of α-pinene oxide into novalic acid in a stirred aerated tank bioreactor in biphasic conditions. Results allowed to obtain c.a. 16 g/L product in about 8 h with a yield close to 40%.
0963-9969Food res. int.424Exploration of α-pinene degradation pathway of Pseudomonas rhodesiae CIP 107491. Application to novalic acid production in a bioreactorBioprocesses in Food IndustriesLINARES (Denis)FONTANILLE (Pierre)LARROCHE (Christian)PANDEY (Ashok)ed.VENKATESHWAR RAO (L.)ed.LARROCHE (Christian)ed.SOCCOL (Carlos Ricardo)ed.Laboratoire de Génie Chimique et Biochimique, Polytech'Clermont-Ferrand, Université Blaise Pascal, BP 20663174 AubièreFRA1 aut.2 aut.3 aut.Biotechnology Division, National Institute for Interdisciplinary Science and Technology (NIST)Trivandrum 690 019IND1 aut.Bioprocess engineering and Biotechnology division, Chemical Engineering Department, Federal University of Parana (UFPR)Curitiba-PRBRA2 aut.461-4692009ENGINIST155183540001884677500800000© 2009 INIST-CNRS. All rights reserved.1/4 p.09-0321099PAFood research internationalGBRα-Pinene degradation pathway of Pseudomonas rhodesiae CIP 107491, which includes flavoring molecules like cis-2-methyl-5-isopropylhexa-2,5-dienal (isonovalal) and trans-2-methyl-5-isopropylhexa-2,5-dienoic acid (novalic acid) has been extensively studied. Studies took into account biotic and abiotic degradation phenomena, which involved isonovalal and its trans isomer, novalal. Data showed that gas stripping of aldehydes, a spontaneous autooxidation of isonovalal into isonovalic acid (cis form of novalic acid) and a cofactor-dependent isomerization of isonovalal into novalal occurred. Novalic acid was not an end product and was transformed into 3,4-dimethylpentanoic acid by fresh (non permeabilized) cells with a production yield of 40%, while isonovalic acid was not consumed. A three main steps metabolic scheme was outlined to explain α-pinene oxide bioconversion into novalic acid. These data enabled to perform an optimized bioconversion of α-pinene oxide into novalic acid in a stirred aerated tank bioreactor in biphasic conditions. Results allowed to obtain c.a. 16 g/L product in about 8 h with a yield close to 40%.002A35002A31C09A215PinèneNK01PineneNK01PinenoNK01Dégradation02Degradation02Degradación02PseudomonasNS10PseudomonasNS10PseudomonasNS10Application19Application19Aplicación19Production20Production20Producción20Bioréacteur24Bioreactor24Biorreactor24TerpèneFX26TerpeneFX26TerpenoFX26Voie métabolique48Metabolic pathway48Vía métabolica48PseudomonadaceaeNSPseudomonadaceaeNSPseudomonadaceaeNSPseudomonadalesNSPseudomonadalesNSPseudomonadalesNSBactérieBacteriaBacteria229OTOOTOPASCAL 09-0321099 INISTExploration of α-pinene degradation pathway of Pseudomonas rhodesiae CIP 107491. Application to novalic acid production in a bioreactorLINARES (Denis); FONTANILLE (Pierre); LARROCHE (Christian); PANDEY (Ashok); VENKATESHWAR RAO (L.); LARROCHE (Christian); SOCCOL (Carlos Ricardo)Laboratoire de Génie Chimique et Biochimique, Polytech'Clermont-Ferrand, Université Blaise Pascal, BP 206/63174 Aubière/France (1 aut., 2 aut., 3 aut.); Biotechnology Division, National Institute for Interdisciplinary Science and Technology (NIST)/Trivandrum 690 019/Inde (1 aut.); Bioprocess engineering and Biotechnology division, Chemical Engineering Department, Federal University of Parana (UFPR)/Curitiba-PR/Brésil (2 aut.)
Publication en série; Niveau analytique
Food research international; ISSN 0963-9969; Royaume-Uni; Da. 2009; Vol. 42; No. 4; Pp. 461-469; Bibl. 1/4 p.Anglaisα-Pinene degradation pathway of Pseudomonas rhodesiae CIP 107491, which includes flavoring molecules like cis-2-methyl-5-isopropylhexa-2,5-dienal (isonovalal) and trans-2-methyl-5-isopropylhexa-2,5-dienoic acid (novalic acid) has been extensively studied. Studies took into account biotic and abiotic degradation phenomena, which involved isonovalal and its trans isomer, novalal. Data showed that gas stripping of aldehydes, a spontaneous autooxidation of isonovalal into isonovalic acid (cis form of novalic acid) and a cofactor-dependent isomerization of isonovalal into novalal occurred. Novalic acid was not an end product and was transformed into 3,4-dimethylpentanoic acid by fresh (non permeabilized) cells with a production yield of 40%, while isonovalic acid was not consumed. A three main steps metabolic scheme was outlined to explain α-pinene oxide bioconversion into novalic acid. These data enabled to perform an optimized bioconversion of α-pinene oxide into novalic acid in a stirred aerated tank bioreactor in biphasic conditions. Results allowed to obtain c.a. 16 g/L product in about 8 h with a yield close to 40%.002A35; 002A31C09A; 215Pinène; Dégradation; Pseudomonas; Application; Production; Bioréacteur; Terpène; Voie métaboliquePseudomonadaceae; Pseudomonadales; BactériePinene; Degradation; Pseudomonas; Application; Production; Bioreactor; Terpene; Metabolic pathwayPseudomonadaceae; Pseudomonadales; BacteriaPineno; Degradación; Pseudomonas; Aplicación; Producción; Biorreactor; Terpeno; Vía métabolicaINIST-15518.35400018846775008009-0321099
000C98 Control of alcoholic fermentation in winemaking: Current situation and prospectJ. M. SablayrollesINRA, UMR108334060 MontpellierFRA1 aut.09-03211012009PASCAL 09-0321101 INISTPascal:09-0321101001C810963-9969Food res. int.Food research internationalAlcoholic fermentationMonitoringYeastFermentation alcooliqueLevureMonitorage
Winemaking fermentations aim to optimise product quality, which is very difficult to quantify. Control over fermentation kinetics generally has direct technological advantages, in terms of tank use optimisation in the winery and control over energy expenses for the regulation of temperature and is generally a prerequisite for controlling the characteristics of the wine. How new technologies can assist the wine-makers to elaborate wines with predefined characteristics and improve process performances as well as hygienic properties? On-line fermentation monitoring is one promising way because: (i) it is much more accurate than manual measurements and (ii) it makes possible new control strategies with an optimal control tank by tank. Later, preventive control, based on modelling of the fermentation process, may be possible. New processes, such as cell immobilisation, may also be used as well as methodologies in the domain of data management and knowledge based systems.
0963-9969Food res. int.424Control of alcoholic fermentation in winemaking: Current situation and prospectBioprocesses in Food IndustriesSABLAYROLLES (J. M.)PANDEY (Ashok)ed.VENKATESHWAR RAO (L.)ed.LARROCHE (Christian)ed.SOCCOL (Carlos Ricardo)ed.INRA, UMR108334060 MontpellierFRA1 aut.Biotechnology Division, National Institute for Interdisciplinary Science and Technology (NIST)Trivandrum 690 019IND1 aut.Bioprocess engineering and Biotechnology division, Chemical Engineering Department, Federal University of Parana (UFPR)Curitiba-PRBRA2 aut.418-4242009ENGINIST155183540001884677500100000© 2009 INIST-CNRS. All rights reserved.1 p.1/209-0321101PAFood research internationalGBRWinemaking fermentations aim to optimise product quality, which is very difficult to quantify. Control over fermentation kinetics generally has direct technological advantages, in terms of tank use optimisation in the winery and control over energy expenses for the regulation of temperature and is generally a prerequisite for controlling the characteristics of the wine. How new technologies can assist the wine-makers to elaborate wines with predefined characteristics and improve process performances as well as hygienic properties? On-line fermentation monitoring is one promising way because: (i) it is much more accurate than manual measurements and (ii) it makes possible new control strategies with an optimal control tank by tank. Later, preventive control, based on modelling of the fermentation process, may be possible. New processes, such as cell immobilisation, may also be used as well as methodologies in the domain of data management and knowledge based systems.002A35Fermentation alcoolique01Alcoholic fermentation01Fermentación alcohólica01Levure02Yeast02Levadura02Monitorage10Monitoring10Monitoreo10229OTOOTOPASCAL 09-0321101 INISTControl of alcoholic fermentation in winemaking: Current situation and prospectSABLAYROLLES (J. M.); PANDEY (Ashok); VENKATESHWAR RAO (L.); LARROCHE (Christian); SOCCOL (Carlos Ricardo)INRA, UMR1083/34060 Montpellier/France (1 aut.); Biotechnology Division, National Institute for Interdisciplinary Science and Technology (NIST)/Trivandrum 690 019/Inde (1 aut.); Bioprocess engineering and Biotechnology division, Chemical Engineering Department, Federal University of Parana (UFPR)/Curitiba-PR/Brésil (2 aut.)
Publication en série; Niveau analytique
Food research international; ISSN 0963-9969; Royaume-Uni; Da. 2009; Vol. 42; No. 4; Pp. 418-424; Bibl. 1 p.1/2AnglaisWinemaking fermentations aim to optimise product quality, which is very difficult to quantify. Control over fermentation kinetics generally has direct technological advantages, in terms of tank use optimisation in the winery and control over energy expenses for the regulation of temperature and is generally a prerequisite for controlling the characteristics of the wine. How new technologies can assist the wine-makers to elaborate wines with predefined characteristics and improve process performances as well as hygienic properties? On-line fermentation monitoring is one promising way because: (i) it is much more accurate than manual measurements and (ii) it makes possible new control strategies with an optimal control tank by tank. Later, preventive control, based on modelling of the fermentation process, may be possible. New processes, such as cell immobilisation, may also be used as well as methodologies in the domain of data management and knowledge based systems.002A35Fermentation alcoolique; Levure; MonitorageAlcoholic fermentation; Yeast; MonitoringFermentación alcohólica; Levadura; MonitoreoINIST-15518.35400018846775001009-0321101
000C99 Molecular Population Genetics and Phylogeography of the Chagas Disease Vector Triatoma infestans in South AmericaR. V. PiccinaliLaboratorio de Eco-Epidemiologia, Departamento de Ecologia, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Ciudad Aut6noma de Buenos Aires C1428EHAARG1 aut.2 aut.5 aut.P. L. MarcetLaboratorio de Eco-Epidemiologia, Departamento de Ecologia, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Ciudad Aut6noma de Buenos Aires C1428EHAARG1 aut.2 aut.5 aut.Centers for Disease Control and Prevention, Division of Parasitic Diseases, Entomology Branch, 4770 Buford Highway NEChamblee, GA 30341USA2 aut.6 aut.F. NoireauDepartamento de Entomologia, Instituto Oswaldo Cruz, Fundaçāo Oswaldo Cruz, Av. Brazil 436521045-900 Rio de JaneiroBRA3 aut.Institut de Recherche pour le Développement, Unité de Recherche 016 Caractérisation et Contrôle des Populations de Vecteurs, 911 Av. Agropolis34394 MontpellierFRA3 aut.U. KitronDepartment of Environmental Studies, 400 Dowman Dr., Math and Science Center, Suite E511, Emory UniversityAtlanta, GA 30322USA4 aut.R. E. G RtlerLaboratorio de Eco-Epidemiologia, Departamento de Ecologia, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Ciudad Aut6noma de Buenos Aires C1428EHAARG1 aut.2 aut.5 aut.E. M. DotsonCenters for Disease Control and Prevention, Division of Parasitic Diseases, Entomology Branch, 4770 Buford Highway NEChamblee, GA 30341USA2 aut.6 aut.09-03226822009PASCAL 09-0322682 INISTPascal:09-0322682001C800022-2585J. med. entomol.Journal of medical entomologyChagas diseaseCytochromeOxidaseParasitePhylogeographyPopulation expansionPopulation geneticsPopulation structureSouth AmericaTriatoma infestansVectorGénétique populationTrypanosomiase américaineVecteurCytochromeOxidaseStructure populationExpansion populationParasiteAmérique du SudTriatoma infestansPhylogéographie
Knowledge of the genetic variability, population structure, and evolutionary history of Triatoma infestans may be useful for developing rational vector control strategies. A 661-bp fragment of the mitochondrial gene cytochrome oxidase I (COI) was sequenced and analyzed in bugs from Argentina, Uruguay, Peru, and Bolivia, including peridomestic, domestic, Andean, and Chaco sylvatic bugs. A total of 48 polymorphic sites among 37 haplotypes were described. Nucleotide variation fluctuated among samples, with the highest nucleotide diversity observed in seven Argentinean provinces. Within this group, some populations showed patterns of variability compatible with population expansions and/or fine-scale population structure, whereas others suggested population bottlenecks and/ or population admixture processes. A maximum parsimony analysis of the haplotypes showed the presence of a Bolivian/Peruvian and an Argentinean/Uruguayan clade. Bolivian sequences were further divided in Chaco sylvatic and Andean domestic and sylvatic. Two different nested clades were found within the Argentinean/Uruguayan cluster. Analysis of molecular variance (AMOVA) and KST* analysis supported a strong population structure in Argentina, where genetic differentiation was correlated with geographic distance. Departures from neutrality expectations and a nested cladistic analysis suggest a recent population expansion of T. infestans in Argentina, followed by restricted gene flow and patterns of isolation by distance. This expansion could have taken place as a two-wave process, as was shown by the phylogenetic analysis and signatures of population admixture in the southernmost Argentinean populations.
0022-2585JMENA6J. med. entomol.464Molecular Population Genetics and Phylogeography of the Chagas Disease Vector Triatoma infestans in South AmericaPICCINALI (R. V.)MARCET (P. L.)NOIREAU (F.)KITRON (U.)GÜRTLER (R. E.)DOTSON (E. M.)Laboratorio de Eco-Epidemiologia, Departamento de Ecologia, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Ciudad Aut6noma de Buenos Aires C1428EHAARG1 aut.2 aut.5 aut.Centers for Disease Control and Prevention, Division of Parasitic Diseases, Entomology Branch, 4770 Buford Highway NEChamblee, GA 30341USA2 aut.6 aut.Departamento de Entomologia, Instituto Oswaldo Cruz, Fundaçāo Oswaldo Cruz, Av. Brazil 436521045-900 Rio de JaneiroBRA3 aut.Institut de Recherche pour le Développement, Unité de Recherche 016 Caractérisation et Contrôle des Populations de Vecteurs, 911 Av. Agropolis34394 MontpellierFRA3 aut.Department of Environmental Studies, 400 Dowman Dr., Math and Science Center, Suite E511, Emory UniversityAtlanta, GA 30322USA4 aut.796-8092009ENGINIST115363540001874692601000000© 2009 INIST-CNRS. All rights reserved.1 p.3/409-0322682PAJournal of medical entomologyUSAKnowledge of the genetic variability, population structure, and evolutionary history of Triatoma infestans may be useful for developing rational vector control strategies. A 661-bp fragment of the mitochondrial gene cytochrome oxidase I (COI) was sequenced and analyzed in bugs from Argentina, Uruguay, Peru, and Bolivia, including peridomestic, domestic, Andean, and Chaco sylvatic bugs. A total of 48 polymorphic sites among 37 haplotypes were described. Nucleotide variation fluctuated among samples, with the highest nucleotide diversity observed in seven Argentinean provinces. Within this group, some populations showed patterns of variability compatible with population expansions and/or fine-scale population structure, whereas others suggested population bottlenecks and/ or population admixture processes. A maximum parsimony analysis of the haplotypes showed the presence of a Bolivian/Peruvian and an Argentinean/Uruguayan clade. Bolivian sequences were further divided in Chaco sylvatic and Andean domestic and sylvatic. Two different nested clades were found within the Argentinean/Uruguayan cluster. Analysis of molecular variance (AMOVA) and KST* analysis supported a strong population structure in Argentina, where genetic differentiation was correlated with geographic distance. Departures from neutrality expectations and a nested cladistic analysis suggest a recent population expansion of T. infestans in Argentina, followed by restricted gene flow and patterns of isolation by distance. This expansion could have taken place as a two-wave process, as was shown by the phylogenetic analysis and signatures of population admixture in the southernmost Argentinean populations.002A37AGénétique population01Population genetics01Genética población01Trypanosomiase américaine02Chagas disease02Tripanosomiasis americana02Vecteur03Vector03Vector03Cytochrome04Cytochrome04Citocromo04OxidaseFE05OxidaseFE05OxidaseFE05Structure population06Population structure06Estructura población06Expansion population07Population expansion07Expansión población07Parasite08Parasite08Parásito08Amérique du SudNG19South AmericaNG19America del surNG19Triatoma infestansNS55Triatoma infestansNS55Triatoma infestansNS55PhylogéographieCD96PhylogeographyCD96FilogeografiaCD96TrypanosomiaseTrypanosomiasisTripanosomiasisProtozooseProtozoal diseaseProtozoosisParasitoseParasitosisParasitosisInfectionInfectionInfecciónOxidoreductasesFEOxidoreductasesFEOxidoreductasesFEEnzymeFEEnzymeFEEnzimaFEAmériqueNGAmericaNGAmericaNGReduviidaeNSReduviidaeNSReduviidaeNSHeteropteraNSHeteropteraNSHeteropteraNSInsectaNSInsectaNSInsectaNSArthropodaNSArthropodaNSArthropodaNSInvertebrataNSInvertebrataNSInvertebrataNS236OTOOTOPASCAL 09-0322682 INISTMolecular Population Genetics and Phylogeography of the Chagas Disease Vector Triatoma infestans in South AmericaPICCINALI (R. V.); MARCET (P. L.); NOIREAU (F.); KITRON (U.); GÜRTLER (R. E.); DOTSON (E. M.)Laboratorio de Eco-Epidemiologia, Departamento de Ecologia, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Ciudad Aut6noma de Buenos Aires C1428EHA/Argentine (1 aut., 2 aut., 5 aut.); Centers for Disease Control and Prevention, Division of Parasitic Diseases, Entomology Branch, 4770 Buford Highway NE/Chamblee, GA 30341/Etats-Unis (2 aut., 6 aut.); Departamento de Entomologia, Instituto Oswaldo Cruz, Fundaçāo Oswaldo Cruz, Av. Brazil 4365/21045-900 Rio de Janeiro/Brésil (3 aut.); Institut de Recherche pour le Développement, Unité de Recherche 016 Caractérisation et Contrôle des Populations de Vecteurs, 911 Av. Agropolis/34394 Montpellier/France (3 aut.); Department of Environmental Studies, 400 Dowman Dr., Math and Science Center, Suite E511, Emory University/Atlanta, GA 30322/Etats-Unis (4 aut.)
Publication en série; Niveau analytique
Journal of medical entomology; ISSN 0022-2585; Coden JMENA6; Etats-Unis; Da. 2009; Vol. 46; No. 4; Pp. 796-809; Bibl. 1 p.3/4AnglaisKnowledge of the genetic variability, population structure, and evolutionary history of Triatoma infestans may be useful for developing rational vector control strategies. A 661-bp fragment of the mitochondrial gene cytochrome oxidase I (COI) was sequenced and analyzed in bugs from Argentina, Uruguay, Peru, and Bolivia, including peridomestic, domestic, Andean, and Chaco sylvatic bugs. A total of 48 polymorphic sites among 37 haplotypes were described. Nucleotide variation fluctuated among samples, with the highest nucleotide diversity observed in seven Argentinean provinces. Within this group, some populations showed patterns of variability compatible with population expansions and/or fine-scale population structure, whereas others suggested population bottlenecks and/ or population admixture processes. A maximum parsimony analysis of the haplotypes showed the presence of a Bolivian/Peruvian and an Argentinean/Uruguayan clade. Bolivian sequences were further divided in Chaco sylvatic and Andean domestic and sylvatic. Two different nested clades were found within the Argentinean/Uruguayan cluster. Analysis of molecular variance (AMOVA) and KST* analysis supported a strong population structure in Argentina, where genetic differentiation was correlated with geographic distance. Departures from neutrality expectations and a nested cladistic analysis suggest a recent population expansion of T. infestans in Argentina, followed by restricted gene flow and patterns of isolation by distance. This expansion could have taken place as a two-wave process, as was shown by the phylogenetic analysis and signatures of population admixture in the southernmost Argentinean populations.002A37AGénétique population; Trypanosomiase américaine; Vecteur; Cytochrome; Oxidase; Structure population; Expansion population; Parasite; Amérique du Sud; Triatoma infestans; PhylogéographieTrypanosomiase; Protozoose; Parasitose; Infection; Oxidoreductases; Enzyme; Amérique; Reduviidae; Heteroptera; Insecta; Arthropoda; InvertebrataPopulation genetics; Chagas disease; Vector; Cytochrome; Oxidase; Population structure; Population expansion; Parasite; South America; Triatoma infestans; PhylogeographyTrypanosomiasis; Protozoal disease; Parasitosis; Infection; Oxidoreductases; Enzyme; America; Reduviidae; Heteroptera; Insecta; Arthropoda; InvertebrataGenética población; Tripanosomiasis americana; Vector; Citocromo; Oxidase; Estructura población; Expansión población; Parásito; America del sur; Triatoma infestans; FilogeografiaINIST-11536.35400018746926010009-0322682