Philippe JEAN-PIERRE

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• Type de publi. : Communication dans un congrès
• Date de publi. : 29/10/2007
• Auteurs : Kauzar Saleh ContellYann H. KerrGilles BouletMaria Jose EscorihuelaPhilippe MaisongrandePhilippe RichaumePatricia de RosnayWigneron J.-P.Aurelio CanoErnesto Lopez-BaezaJennifer P. GrantNiels SkouRocco PancieraJeffrey P. WalkerMichael Berger
• Organismes : Department of geography Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère European Centre for Medium-Range Weather Forecasts Écologie fonctionnelle et physique de l'environnement Universitat de València = University of Valencia = Universidade de Valencia Universitat de València = University of Valencia = Universidade de Valencia Vrije Universiteit Amsterdam [Amsterdam] Danmarks Tekniske Universitet = Technical University of Denmark University of Melbourne University of Melbourne European Space Research and Technology Centre

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• Type de publi. : Communication dans un congrès
• Date de publi. : 24/10/2007
• Auteurs : Jean-Philippe AntoniPierre FrankhauserCécile TannierSamy Youssoufi
• Organismes : Théoriser et modéliser pour aménager (UMR 6049) Théoriser et modéliser pour aménager (UMR 6049) Théoriser et modéliser pour aménager (UMR 6049) Théoriser et modéliser pour aménager (UMR 6049)

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Résumé : In France, managing urban growth and sprawl depends on the housing policies made by municipalities (or groups of municipalities), by the Department, the Region or the State (i.e. by public actors) through specific statutory documents like PLU (Plan locaux d'urbanisme) or SCOT (Schémas de cohérence territoriaux). Currently, the policies leading to such documents appear very crucial. Indeed, sustainability in urban development has become a crucial issue. To manage it, urban planners use a variety of prescriptive tools such as Geographic information systems (SIG) or Computer aided drafting (CAD) softwares. Nevertheless, these "traditional" tools have a reduced predictive capability and since about 20 years, researchers try to develop modeling approaches allowing to improve describing and forecasting urban growth and its consequences. The aim of this paper is to present and compare three of these modeling tools, relaying on different theories. The heterogeneity of the produced results is discussed in the conclusion and envisaged as a interesting contribution to feed debates about urban growth management in the current framework of territorial intelligence.

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Fichiers liés : Antoni_JP._Modeling_urbanization_to_simulate_prospective_scenarios.pdf

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• Type de publi. : Communication dans un congrès
• Date de publi. : 21/10/2007
• Auteurs : Anne-Sophie WalkerVéronique DecognetMarc FermaudAlexandre BoutJohann ConfaisPierre LerouxAngelique GautierFabián MartínezJean RoudetPhilippe C. NicotMarc BardinPhilippe RobinMélody PotronElisabeth Fournier
• Organismes : BIOlogie et GEstion des Risques en agriculture Unité de Pathologie Végétale Santé et agroécologie du vignoble Institut Sophia Agrobiotech BIOlogie et GEstion des Risques en agriculture BIOlogie et GEstion des Risques en agriculture BIOlogie et GEstion des Risques en agriculture Santé et agroécologie du vignoble Santé et agroécologie du vignoble Unité de Pathologie Végétale Unité de Pathologie Végétale BIOlogie et GEstion des Risques en agriculture BIOlogie et GEstion des Risques en agriculture BIOlogie et GEstion des Risques en agriculture

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Fichiers liés : 2007-Walker-Cape Town-pop genet_1.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 18/10/2007
• Auteurs : Gert SclepJoke AllemeerschRobin LiechtiBjörn de MeyerJim BeynonRishikesh BhaleraoYves MoreauWilfried NietfeldJean-Pierre RenouPhilippe ReymondMartin KuiperPierre Hilson
• Organismes : Universiteit Gent = Ghent University = Université de Gand
• Publié dans BMC Bioinformatics le 01/11/2020

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Résumé : Abstract Background The Complete Arabidopsis Transcript MicroArray (CATMA) initiative combines the efforts of laboratories in eight European countries [1] to deliver gene-specific sequence tags (GSTs) for the Arabidopsis research community. The CATMA initiative offers the power and flexibility to regularly update the GST collection according to evolving knowledge about the gene repertoire. These GST amplicons can easily be reamplified and shared, subsets can be picked at will to print dedicated arrays, and the GSTs can be cloned and used for other functional studies. This ongoing initiative has already produced approximately 24,000 GSTs that have been made publicly available for spotted microarray printing and RNA interference. Results GSTs from the CATMA version 2 repertoire (CATMAv2, created in 2002) were mapped onto the gene models from two independent Arabidopsis nuclear genome annotation efforts, TIGR5 and PSB-EuGène, to consolidate a list of genes that were targeted by previously designed CATMA tags. A total of 9,027 gene models were not tagged by any amplified CATMAv2 GST, and 2,533 amplified GSTs were no longer predicted to tag an updated gene model. To validate the efficacy of GST mapping criteria and design rules, the predicted and experimentally observed hybridization characteristics associated to GST features were correlated in transcript profiling datasets obtained with the CATMAv2 microarray, confirming the reliability of this platform. To complete the CATMA repertoire, all 9,027 gene models for which no GST had yet been designed were processed with an adjusted version of the Specific Primer and Amplicon Design Software (SPADS). A total of 5,756 novel GSTs were designed and amplified by PCR from genomic DNA. Together with the pre-existing GST collection, this new addition constitutes the CATMAv3 repertoire. It comprises 30,343 unique amplified sequences that tag 24,202 and 23,009 protein-encoding nuclear gene models in the TAIR6 and EuGène genome annotations, respectively. To cover the remaining untagged genes, we identified 543 additional GSTs using less stringent design criteria and designed 990 sequence tags matching multiple members of gene families (Gene Family Tags or GFTs) to cover any remaining untagged genes. These latter 1,533 features constitute the CATMAv4 addition. Conclusion To update the CATMA GST repertoire, we designed 7,289 additional sequence tags, bringing the total number of tagged TAIR6-annotated Arabidopsis nuclear protein-coding genes to 26,173. This resource is used both for the production of spotted microarrays and the large-scale cloning of hairpin RNA silencing vectors. All information about the resulting updated CATMA repertoire is available through the CATMA database http://www.catma.org.

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Fichiers liés : 2007_Sclep_BMC_Bioinformatics.pdf

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• Type de publi. : Communication dans un congrès
• Date de publi. : 14/10/2007
• Auteurs : Ibrahim CheddadiPierre SaramitoGraner FrançoisPhilippe MarmottantChristophe Raufaste
• Organismes : Modelling, Observations, Identification for Environmental Sciences Modelling, Observations, Identification for Environmental Sciences Laboratoire de Spectrométrie Physique Laboratoire de Spectrométrie Physique Institut de Recherche sur les Phénomènes Hors Equilibre Laboratoire de Spectrométrie Physique Physique et mécanique des milieux hétérogènes

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• Type de publi. : Communication dans un congrès
• Date de publi. : 14/10/2007
• Auteurs : Jean-Philippe TardifPeter SturmSébastien Roy
• Organismes : Département d'Informatique et de Recherche Opérationnelle [Montreal] Interpretation and Modelling of Images and Videos Département d'Informatique et de Recherche Opérationnelle [Montreal]

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Résumé : We present an algorithm for plane-based self-calibration of cameras with radially symmetric distortions given a set of sparse feature matches in at least two views. The projection function of such cameras can be seen as a projection with a pinhole camera, followed by a non-parametric displacement of the image points in the direction of the distortion center. The displacement is a function of the points' distance to the center. Thus, the generated distortion is radially symmetric. Regular cameras, fish-eyes as well as the most popular central catadioptric devices can be described by such a model. Our approach recovers a distortion function consistent with all the views, or estimates one for each view if they are taken by different cameras. We consider a least squares algebraic solution for computing the homography between two views that is valid for rectified (undistorted) point correspondences. We observe that the terms of the function are bilinear in the unknowns of the homography and the distortion coefficient associated to each point. Our contribution is to approximate this non-convex problem by a convex one. To do so, we replace the bilinear terms by a set of new variables and obtain a linear least squares problem. We show that like the distortion coefficients, these variables are subject to monotonicity constraints. Thus, the approximate problem is a convex quadratic program. We show that solving it is sufficient for accurately estimating the distortion parameters. We validate our approach on simulated data as well as on fish-eye and catadioptric cameras. We also compare our solution to three state-of-the-art algorithms and show similar performance.

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Fichiers liés : TardifSturmRoy-iccv2007.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 12/10/2007
• Auteurs : Sabeeha S MerchantSimon E ProchnikOlivier VallonElizabeth H HarrisSteven J KarpowiczGeorge B WitmanAstrid TerryAsaf SalamovLillian K Fritz-LaylinLaurence Maréchal-DrouardWallace F MarshallLiang-Hu QuDavid R NelsonAnton A SanderfootMartin H SpaldingVladimir V KapitonovQinghu RenPatrick FerrisErika LindquistHarris ShapiroSusan M LucasJane GrimwoodJeremy SchmutzPierre CardolHeriberto CeruttiGuillaume ChanfreauChun-Long ChenValérie CognatMartin T CroftRachel DentSusan DutcherEmilio FernándezHideya FukuzawaDavid González-BallesterDiego González-HalphenArmin HallmannMarc HanikenneMichael HipplerWilliam InwoodKamel JabbariMing KalanonRichard KurasPaul A LefebvreStéphane D. LemaireAlexey V LobanovMartin LohrAndrea ManuellIris MeierLaurens MetsMaria MittagTelsa MittelmeierJames V MoroneyJeffrey MoseleyCarolyn NapoliAurora M NedelcuKrishna K NiyogiSergey V NovoselovIan T PaulsenGreg PazourSaul PurtonJean-Philippe RalDiego Mauricio Riaño-PachónWayne RiekhofLinda RymarquisMichael SchrodaDavid L. SternJames UmenRobert WillowsNedra WilsonSara Lana ZimmerJens AllmerJanneke BalkKaterina BisovaChong-Jian ChenMarek EliasKarla GendlerCharles HauserMary Rose LambHeidi LedfordJoanne C LongJun MinagawaM Dudley PageJunmin PanWirulda PootakhamSanja RojeAnnkatrin RoseEric StahlbergAimee M TerauchiPinfen YangSteven BallChris BowlerCarol L DieckmannVadim N GladyshevPamela GreenRichard JorgensenStephen MayfieldBernd Mueller-RoeberSathish RajamaniRichard T SayrePeter BroksteinInna DubchakDavid GoodsteinLeila Hornicky Wayne HuangJinal JhaveriYigong LuoDiego MartínezWing Chi Abby NgauBobby OtillarAlexander PoliakovAaron PorterLukasz SzajkowskiGregory WernerKemin ZhouIgor V GrigorievDaniel S RokhsarArthur R Grossman
• Organismes : Department of Chemistry and Biochemistry Department of Energy / Joint Genome Institute Physiologie membranaire et moléculaire du chloroplaste Department of Biology Department of Chemistry and Biochemistry Department of Cell Biology Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Molecular & Cell Biology [Berkeley] Institut de Biologie Moléculaire des Plantes Department of Biochemistry and Biophysics Biotechnology Research Center Department of Molecular Sciences and Center of Excellence in Genomics and Bioinformatics Department of Plant Biology Department of Genetics, Development, and Cell Biology Genetic Information Research Institute The Institute for Genomic Research Plant Biology Laboratory Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Stanford School of Medicine [Stanford] Stanford School of Medicine [Stanford] Physiologie membranaire et moléculaire du chloroplaste Plant Biology Institute, Department of Life Sciences School of Biological Sciences–Plant Science Initiative Department of Chemistry and Biochemistry Biotechnology Research Center Institut de Biologie Moléculaire des Plantes Department of Plant Sciences Department of Plant and Microbial Biology [Berkeley] Department of Genetics Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Graduate School of Biostudies Department of Plant Biology [Carnegie] Departamento de Genética Molecular, Instituto de Fisiología Celular Department of Cellular and Developmental Biology of Plants Plant Biology Institute, Department of Life Sciences Institute for Plant Biochemistry and Biotechnology Department of Plant and Microbial Biology [Berkeley] Institut Jacques Monod Plant Cell Biology Research Centre, The School of Botany Physiologie membranaire et moléculaire du chloroplaste Department of Plant Biology Institut de biotechnologie des plantes Department of Biochemistry Institut für Allgemeine Botanik Department of Cell Biology and Skaggs Institute for Chemical Biology PCMB and Plant Biotechnology Center Molecular Genetics and Cell Biology Institut für Allgemeine Botanik und Pflanzenphysiologie Department of Molecular and Cellular Biology [University of Arizona] Department of Biological Science Department of Plant Biology [Carnegie] Biology Institute Department of Biology Department of Plant and Microbial Biology [Berkeley] Department of Biochemistry The Institute for Genomic Research Department of Physiology Department of Biology Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 University of Potsdam = Universität Potsdam Department of Medicine Delaware Biotechnology Institute Institute of Biology II/Plant Biochemistry Boyce Thompson Institute [Ithaca] Plant Biology Laboratory Department of Chemistry and Biomolecular Sciences Department of Anatomy and Cell Biology Boyce Thompson Institute [Ithaca] Izmir Ekonomi Universitesi Department of Plant Sciences Institute of Microbiology Biotechnology Research Center Department of Plant Physiology, Faculty of Sciences Biology Institute Bioinformatics Program Department of Biology Department of Plant and Microbial Biology [Berkeley] Department of Chemistry and Biochemistry Institute of Low-Temperature Science Department of Chemistry and Biochemistry Department of Biology Department of Plant Biology [Carnegie] Institute of Biological Chemistry Appalachian State University PCMB and Plant Biotechnology Center Department of Chemistry and Biochemistry Department of Biology Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 Institut Jacques Monod Cell Signaling Laboratory Department of Molecular and Cellular Biology [University of Arizona] Department of Biochemistry Delaware Biotechnology Institute Biology Institute Department of Cell Biology and Skaggs Institute for Chemical Biology University of Potsdam = Universität Potsdam Graduate Program in Biophysics PCMB and Plant Biotechnology Center Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Energy / Joint Genome Institute Department of Molecular & Cell Biology [Berkeley] Department of Plant Biology [Carnegie]
• Publié dans Science le 22/10/2020

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Résumé : Chlamydomonas reinhardtii is a unicellular green alga whose lineage diverged from land plants over 1 billion years ago. It is a model system for studying chloroplast-based photosynthesis, as well as the structure, assembly, and function of eukaryotic flagella (cilia), which were inherited from the common ancestor of plants and animals, but lost in land plants. We sequenced the approximately 120-megabase nuclear genome of Chlamydomonas and performed comparative phylogenomic analyses, identifying genes encoding uncharacterized proteins that are likely associated with the function and biogenesis of chloroplasts or eukaryotic flagella. Analyses of the Chlamydomonas genome advance our understanding of the ancestral eukaryotic cell, reveal previously unknown genes associated with photosynthetic and flagellar functions, and establish links between ciliopathy and the composition and function of flagella.

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• Type de publi. : Communication dans un congrès
• Date de publi. : 04/10/2007
• Auteurs : Nicolas BellegardePhilippe DessanteJean-Claude VannierPierre Vidal
• Organismes : SUPELEC-Campus Gif SUPELEC-Campus Gif SUPELEC-Campus Gif SUPELEC-Campus Gif

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Résumé : This paper is about a modelling and an optimisation of an electromechanical drive system. The device consists of a DC source, a power converter, a linear actuator and its load. The aim of the system is to drive a load along a linear displacement. The two main objectives are to reduce the actuator volume and the copper losses, which are contrary objectives. Here, we present an analytical modelling of the system and afterwards an optimisation of the linear actuator main dimensions in order to carry out the previous objectives.

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Fichiers liés : 5_N.Bellegarde_Supelec.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/10/2007
• Auteurs : C. CombadiereCharles FeumiWilliam RaoulNicole KellerMathieu P RoderoAdeline PézardSophie LavaletteMarianne HoussierLaurent JonetÉmilie PicardPatrice DebréMirna SirinyanPhilippe DeterreTania FerroukhiSalomon-Yves CohenDominique ChauvaudJean-Claude JeannySylvain ChemtobFrancine Behar-CohenFlorian Sennlaub
• Organismes : Immunologie cellulaire et tissulaire CHU Pitié-Salpêtrière [AP-HP] Centre de Recherche des Cordeliers Centre de Recherche des Cordeliers Centre de Recherche des Cordeliers Immunologie cellulaire et tissulaire Immunologie cellulaire et tissulaire Centre de Recherche des Cordeliers Centre de Recherche des Cordeliers Centre de Recherche des Cordeliers Centre de Recherche des Cordeliers Immunologie cellulaire et tissulaire CHU Pitié-Salpêtrière [AP-HP] Department of Pediatrics, Ophthalmology and Pharmacology Immunologie cellulaire et tissulaire Immunologie cellulaire et tissulaire Centre d'Angiographie et de Laser Service d'ophtalmologie [Hôtel-Dieu - Paris] Centre de Recherche des Cordeliers Department of Pediatrics, Ophthalmology and Pharmacology Centre de Recherche des Cordeliers Service d'ophtalmologie [Hôtel-Dieu - Paris] Centre de Recherche des Cordeliers
• Publié dans Journal of Clinical Investigation le 24/10/2020

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Résumé : The role of retinal microglial cells (MCs) in age-related macular degeneration (AMD) is unclear. Here we demonstrated that all retinal MCs express CX3C chemokine receptor 1 (CX3CR1) and that homozygosity for the CX3CR1 M280 allele, which is associated with impaired cell migration, increases the risk of AMD. In humans with AMD, MCs accumulated in the subretinal space at sites of retinal degeneration and choroidal neovascularization (CNV). In CX3CR1-deficient mice, MCs accumulated subretinally with age and albino background and after laser impact preceding retinal degeneration. Raising the albino mice in the dark prevented both events. The appearance of lipid-bloated subretinal MCs was drusen-like on funduscopy of senescent mice, and CX3CR1-dependent MC accumulation was associated with an exacerbation of experimental CNV. These results show that CX3CR1-dependent accumulation of subretinal MCs evokes cardinal features of AMD. These findings reveal what we believe to be a novel pathogenic process with important implications for the development of new therapies for AMD.

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Fichiers liés : Combadiere_JCI_07.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/10/2007
• Auteurs : Estelle Jumas-BilakJean-Philippe CarlierHélène Jean-PierreFrancine MoryCorinne TeyssierBernard GayJosiane CamposH. Marchandin
• Organismes : Laboratoire universitaire d'antibiologie Laboratoire de Bactériologie Department of Geology and Geophysics Institut de Recherche en Infectiologie de Montpellier Facultat de Fisica, Departament Universitari d'Optica Laboratoire universitaire d'antibiologie Laboratoire de Bactériologie
• Publié dans International Journal of Systematic and Evolutionary Microbiology le 31/10/2020

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Résumé : Eleven strains of a hitherto unknown, Gram-negative, anaerobic coccus were recovered from various human clinical samples of patients hospitalized in two geographically distant French hospitals. These strains displayed the morphology and growth characteristics of those related to the genus Acidaminococcus. The clinical isolates shared at least 99.9 and 99.7 % of their nucleotide positions in the 16S and 23S rRNA gene sequences, respectively. They displayed 95.6 and 88.9 % 16S and 23S rRNA gene sequence similarities, respectively, with Acidaminococcus fermentans. The 16S rRNA-based phylogeny revealed that all the clinical isolates grouped in a statistically well supported cluster separate from A. fermentans. Enzymic activity profiles as well as metabolic end product patterns, including propionic acid production, differentiated the novel bacteria from A. fermentans. Finally, phenotypic, genotypic and phylogenetic data, including large-scale chromosome structure and DNA G+C content, supported the proposal of a novel species of the genus Acidaminococcus, for which the name Acidaminococcus intestini sp. nov. is proposed. The type strain is ADV 255.99(T) (=AIP 283.01(T)=CIP 108586(T)=CCUG 50930(T)).

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