Philippe JEAN-PIERRE

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• Type de publi. : Communication dans un congrès
• Date de publi. : 16/11/2009
• Auteurs : Bertrand DelezoideHervé Le BorgnePierre-Alain MoëllicDavid GorisseFrédéric PreciosoIacopo VivarelliBernard MerialdoPhilippe-Henri GosselinLionel GranjonDenis PellerinMichèle RombautHervé BredinLionel KoenigHélène LachambreElie El KhouryBoris MansencalYifan ZhouJenny Benois-PineauHervé JégouStéphane AyacheBahjat SafadiGeorges QuénotJonathan FabrizioMatthieu CordHervé GlotinZhongqiu ZhaoEmilie DumontBertrand Augereau
• Organismes : Laboratoire d'Intégration des Systèmes et des Technologies Laboratoire d'Intégration des Systèmes et des Technologies Laboratoire d'Intégration des Systèmes et des Technologies Equipes Traitement de l'Information et Systèmes Equipes Traitement de l'Information et Systèmes Eurecom [Sophia Antipolis] Eurecom [Sophia Antipolis] MIDI GIPSA-Services GIPSA - Architecture, Géométrie, Perception, Images, Gestes GIPSA - Architecture, Géométrie, Perception, Images, Gestes Équipe Structuration, Analyse et MOdélisation de documents Vidéo et Audio Centre National de la Recherche Scientifique Équipe Structuration, Analyse et MOdélisation de documents Vidéo et Audio Équipe Structuration, Analyse et MOdélisation de documents Vidéo et Audio Équipe Structuration, Analyse et MOdélisation de documents Vidéo et Audio Laboratoire Bordelais de Recherche en Informatique Laboratoire Bordelais de Recherche en Informatique Laboratoire Bordelais de Recherche en Informatique Learning and recognition in vision Laboratoire d'informatique Fondamentale de Marseille - UMR 6166 Laboratoire d'Informatique de Grenoble Laboratoire d'Informatique de Grenoble Machine Learning and Information Retrieval Equipes Traitement de l'Information et Systèmes Machine Learning and Information Retrieval Laboratoire des Sciences de l'Information et des Systèmes Laboratoire des Sciences de l'Information et des Systèmes Laboratoire des Sciences de l'Information et des Systèmes SIC

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Résumé : The IRIM group is a consortium of French teams working on Multimedia Indexing and Retrieval. This paper describes our participation to the TRECVID 2009 High Level Features detection task. We evaluated a large number of different descriptors (on TRECVID 2008 data) and tried different fusion strategies, in particular hierarchical fusion and genetic fusion. The best IRIM run has a Mean Inferred Average Precision of 0.1220, which is significantly above TRECVID 2009 HLF detection task median performance. We found that fusion of the classification scores from different classifier types improves the performance and that even with a quite low individual performance, audio descriptors can help.

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Fichiers liés : IRIMatTRECVID2009.pdf

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• Type de publi. : Communication dans un congrès
• Date de publi. : 16/11/2009
• Auteurs : Fabrice LegeaiJean-Pierre GauthierFrançois CousseransEmmanuelle d'AlençonOlivier CollinJacques NicolasPhilippe FournierDenis Tagu
• Organismes : Biological systems and models, bioinformatics and sequences Biologie des organismes et des populations appliquées à la protection des plantes Biologie des organismes et des populations appliquées à la protection des plantes Biologie Intégrative et Virologie des Insectes [Univ. de Montpellier II] Biologie Intégrative et Virologie des Insectes [Univ. de Montpellier II] Biological systems and models, bioinformatics and sequences Biological systems and models, bioinformatics and sequences Biologie Intégrative et Virologie des Insectes [Univ. de Montpellier II] Biologie des organismes et des populations appliquées à la protection des plantes

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Résumé : Genome annotation includes any features mapped on the genome, including protein coding genes and their multiples mRNA, pseudogenes, transposons and repeats, non-coding RNAs, SNPs, or similarities to other genomes. While many of these features can be automatically locally predicted by sophisticated software packages based on sequence or structure comparisons, setting up centralized a boinformatic warehouse is crucial to organize, display, and distribute all these data, and facilitates their handling by non skilled bio-analyst. It also provides the opportunity to unite a broad community for curating gene models and gathering manual and functional annotations, which is an essential step to attain a basal data quality. AphidBase (http://www.aphidbase.org) is a comprehensive information system dedicated to aphids. It has been set up to safely centralize, manage, mine, disseminate and promulgate data generated by International Aphid Genomics Consortium (IAGC). It allowed an international community dispersed at many sites to produce a robust and comprehensive annotation of the pea aphid genome. Lepido-DB (http://www.inra.fr/lepidodb) is a centralized bioinformatic resource that was first developed to facilitate the comparative genomics of two major lepidopteran pests, the noctuid moths Helicoverpa armigera and Spodoptera frugiperda, by the analyzis of syntenic relationships and genome rearrangements of 15 pairs of BACs sequences and their corresponding colinear regions extracted from 10 Bombyx mori chromosomes. These systems were constructed using open source software tools from the Generic Model Organism Database (GMOD, http://www.gmod.org) including several Chado instances and genome browsers (Gbrowse and Cmap), gene and protein reports, Apollo, an application for the manual curation, and various other tools such as a a blast search and a full text search facilities. At a a larger scope, ensuing the AphidBase and LepidoDB experience, this system will be extended to definitely support complete genomes sequencing or resequencing, annotation projects, or any other project based on deep sequencing strategies (expression profiling by RNA-Seq, variability studies, ChIP-Seq, ...) for various Insect pest species. And, to ensure that all these resources were fully exploited by the community, this expansion would be accompanied by gathering many new biological data such as phenotypes, ontologies and atlas.

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• Type de publi. : Communication dans un congrès
• Date de publi. : 09/11/2009
• Auteurs : Yann H. KerrFrançois CabotPhilippe RichaumePhilippe WaldteufelWigneron J.-P.Achim HahneSuzanne Mecklenburg
• Organismes : Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère Centre d'études spatiales de la biosphère ESTER - LATMOS Écologie fonctionnelle et physique de l'environnement Agence Spatiale Européenne = European Space Agency Agence Spatiale Européenne = European Space Agency

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Résumé : The SMOS mission aims at allowing a frequent and global monitoring of two geophysical parameters: Soil Mois- ture and sea surface Salinity. These two quantities are key variables for climate studies, weather forecast and water resources management. To achieve this goal, a two dimensional interferometer operating at L band was developed and eventually launched on November 2 2009. The SMOS mission aims at providing a global frequent coverage of the globe with a spatial resolution of 43 km on average (27 km max).

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Fichiers liés : 39347_20100907032152378_1.pdf

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• Type de publi. : Communication dans un congrès
• Date de publi. : 02/11/2009
• Auteurs : Philippe BalbianiFahima Cheikh AliliPierre-Cyrille HeamOlga Kouchnarenko
• Organismes : Logique, Interaction, Langue et Calcul Centre National de la Recherche Scientifique Logique, Interaction, Langue et Calcul Combination of approaches to the security of infinite states systems Combination of approaches to the security of infinite states systems

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Résumé : Composition of Web services consists of the interleaving of the sequence of actions executed by the elementary services in accordance with a client specification. We model Web services as automata executing actions and also sending and receiving messages. This paper provides a theoretical study for three service composition problems, and in particular for the problem of computing a Boolean formula which exactly characterises the conditions required for services to answer the client's request. New complexity results are established for these problems within the framework of service composition with constraints.

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• Type de publi. : Article dans une revue
• Date de publi. : 02/11/2009
• Auteurs : Pierre-Francois BiardAnnabelle CouvertChristophe RennerPhilippe ZozorSébastien BassivièreJean-Pierre Levasseur
• Organismes : Institut des Sciences Chimiques de Rennes Institut des Sciences Chimiques de Rennes Water Research Center Water Research Center Water Research Center Veolia Eau (Paris)
• Publié dans Water Practice and Technology le 22/10/2020

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Résumé : Recently, the development of a high voidage contactor, named Aquilair Plus™, has demonstrated high efficiency for chemical scrubbing of hydrogen sulphide. Liquid and gas phases flow at co-current and high velocity, leading to a great dispersion of the liquid and then to an enhancement of the mass transfer rate by comparison with classical packed towers. This study focused on the results which obtained at semi-industrial scale with the Aquilair PlusTM process on a waste water treatment plant located in France. The scrubbing liquid consisted of a sodium hypochlorite alkaline solution. At once, pressure drop, H2S removal and reagents consumption were followed. The influence of the superficial gas velocity, liquid-to-gas mass ratio (L/G), pH, hypochlorite concentration of the scrubbing liquid and H2S inlet concentration was characterised. H2S removal percentages higher than 90% could be easily achieved with a moderate pressure drop (< 40 mbar). Both hydrodynamic and chemical conditions proved to influence performances. Reagents consumptions slightly higher than the predicted ones were measured.

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Fichiers liés : Biard_et_al_H2S_removal_final.pdf

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• Type de publi. : Communication dans un congrès
• Date de publi. : 02/11/2009
• Auteurs : Philippe BalbianiFahima Cheikh AliliPierre-Cyrille HeamOlga Kouchnarenko
• Organismes : Logique, Interaction, Langue et Calcul Centre National de la Recherche Scientifique Logique, Interaction, Langue et Calcul Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) Combination of approaches to the security of infinite states systems

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Résumé : Composition of Web services consists of the interleaving of the sequence of actions executed by the elementary services in accordance with a client specification. We model Web services as automata executing actions and also sending and receiving messages. This paper provides a theoretical study for three service composition problems, and in particular for the problem of computing a Boolean formula which exactly characterises the conditions required for services to answer the client s request. New complexity results are established for these problems within the framework of service composition with constraints.

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Fichiers liés : bchk10_ij.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/11/2009
• Auteurs : Alejandro Piris-GimenezJean-Philippe CorreGrégory JouvionThomas CandelaHuot KhunPierre L. Goossens
• Organismes : Toxines et Pathogénie Bactérienne Toxines et Pathogénie Bactérienne Histotechnologie et Pathologie Toxines et Pathogénie Bactérienne Histotechnologie et Pathologie Toxines et Pathogénie Bactérienne
• Publié dans Journal of Infectious Diseases le 27/10/2020

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Résumé : BACKGROUND: The Bacillus anthracis poly-gamma-D-glutamate capsule is essential for virulence. It impedes phagocytosis and protects bacilli from the immune system, thus promoting systemic dissemination. METHODS: To further define the virulence mechanisms brought into play by the capsule, we characterized the interactions between encapsulated nontoxinogenic B. anthracis and its host in vivo through histological analysis, perfusion, and competition experiments with purified capsule. RESULTS: Clearance of encapsulated bacilli from the blood was rapid (>90% clearance within 5 min), with 75% of the bacteria being trapped in the liver. Competition experiments with purified capsule polyglutamate inhibited this interaction. At the septicemic phase of cutaneous infection with spores, the encapsulated bacilli were trapped in the vascular spaces of the liver and interacted closely with the liver endothelium in the sinusoids and terminal and portal veins. They often grow as microcolonies containing capsular material shed by the bacteria. CONCLUSION: We show that, in addition to its inhibitory effect on the interaction with the immune system, the capsule surrounding B. anthracis plays an active role in mediating the trapping of the bacteria within the liver and may thus contribute to anthrax pathogenesis. Because other microorganisms produce polyglutamate, it may also represent a general mechanism of virulence or in vivo survival.

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Fichiers liés : Piris-gimenez-JID.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/11/2009
• Auteurs : Philippe ChevalierAlain LeizoroviczPablo MaureiraJean-Pierre CarteauxHervé CorbineauThierry CausBrigitte DebreynePhilippe MaboChristian DechillouJean-Claude DeharoSerge BarryPaul TouboulJean-Pierre VillemotJean-François Obadia
• Organismes : Service de cardiologie Evaluation et modélisation des effets thérapeutiques [LBBE] Service de Chirurgie Cardio-vasculaire [CHRU Nancy] Service de Chirurgie Cardio-vasculaire [CHRU Nancy] Service de chirurgie thoracique cardiaque et vasculaire [Rennes] = Thoracic and Cardiovascular Surgery [Rennes] Service de chirurgie cardiaque Service de cardiologie Service de cardiologie et maladies vasculaires [Rennes] = Cardiac, Thoracic, and Vascular Surgery [Rennes] Service de Cardiologie [CHRU Nancy] Service de cardiologie Service de cardiologie Service de Chirurgie Cardio-vasculaire [CHRU Nancy]
• Publié dans Archives of cardiovascular diseases le 30/10/2020

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Résumé : BACKGROUND: Randomized studies evaluating left atrial radiofrequency ablation (RFA) in patients with persistent atrial fibrillation undergoing mitral valve surgery are scarce and monocentric. AIM: To evaluate the efficacy of left atrial RFA concomitant with mitral valve surgery to restore and maintain sinus rhythm. METHODS: The SAFIR is a multicentre, double-blinded, centrally randomized study involving four university hospitals. Between December 2002 and September 2005, 43 patients with mitral valve disease and long-standing, persistent atrial fibrillation (duration>6 months) were included. We compared valvular surgery alone (n=22) or with left atrial RFA (n=21). The main endpoint was sinus rhythm at 12 months without recurrence of arrhythmia during follow-up. Secondary endpoints were surgical adverse events, atrial fibrillation relapses, stroke and echocardiographic measurements after three and 12 months' follow-up. Analyses of the efficacy criteria were performed on an intention-to-treat basis. RESULTS: The primary endpoint occurred significantly more often in the RFA group than in the control group (respectively, 12/21 patients [57%] vs 1/22 patients [4%]; p=0.004). There were more patients with sinus rhythm in the RFA group than in the control group at discharge (72.7% vs 4.8%; p<0.005), 3-month follow-up (85.7% vs 23.8%; p<0.01) and 12-month follow-up (95.2% vs 33.3%; p<0.005). The patients in the RFA group had similar rates of postoperative complications and stroke during follow-up as those in the control group. CONCLUSIONS: This multicentre study suggests that left atrial RFA is effective and safe in patients with chronic atrial fibrillation and mitral valve disease.

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• Type de publi. :
• Date de publi. : 01/11/2009
• Auteurs : Gaelle AggeriClaire AtgerPhilippe CrozePierre CruiziatYvette DattéeJohanna DonvezCatherine DucatillionArmelle FaveryCaroline GutlebenYves CaraglioThierry AméglioJean-Pierre RossignolHervé CochardHendrik DaviMaxime CailleretYingge XieMarie NourtierAndré ChanzyOlivier DamasDenis FerrandoThierry ManieOlivier FilippiBernard SeguinJean-Michel MeuriotAnaïs Dusotoit-CoucaudDidier CosteBoris B. AdamAbdelkader BensaoudEnrico FarinaFederico Di BattistaGiovanni RossoAlessandro SoraccoEric GiroudJean-Pierre ClaracVincent BollaClaire AtgerPhilippe Croze
• Organismes : Centre National de la Fonction Publique Territoriale Pousse Conseil Laboratoire de Parasitologie-Mycologie (CHU de Montpellier) Institut National de la Recherche Agronomique Académie d'Agriculture de France Établissement Public Local d’Enseignement et de Formation Professionnelle Agricole Villa Thuret Services déconcentrés d'appui à la recherche Provence-Alpes-Côte d'Azur Plante et Cité Cirad Direction Générale Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant Institut Agro Rennes Angers Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant Ecologie Systématique et Evolution Ecologie Systématique et Evolution Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes EPLEFPA EPLEFPA Regional Emergencies Observatory, Provence-Alpes-Cote d'Azur region (ORU PACA), Hyères, France. Pépinière Filippi Ecologie des forêts de Guyane Lycee Lafayette Laboratoire de Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier HYDRASOL LE PLESSIS ROBINSON Unità di Ricerca per la Floricoltura e le Specie Ornamentali (CRA-FSO) Unità di Ricerca per la Floricoltura e le Specie Ornamentali (CRA-FSO) Rinnovando Rinnovando Fédération Française du Paysage Ecole Nationale Supérieure du Paysage Ecole Nationale Supérieure du Paysage Pousse Conseil Parc de Lunaret, Ville de Montpellier

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Résumé : Comment les plantes utilisent l’eau : rappels sur les mécanismes et les régulations. - Être immobile et subir la sècheresse - Le défi des plantes en zones méditerranéennes et arides. - Les mécanismes de résistance à la sécheresse chez les arbres. - Caractéristiques des sols en milieu urbain. - La reprise racinaire des jeunes plantations d'arbres. - Stress hydrique et dépérissement des sapinières : quels sont les arbres les plus vulnérables ? - Diversification végétale en toitures terrasses avec substrat de faible épaisseur : identification de végétaux adaptés à des conditions limitantes en eau. - Les jardins économes en eau de la ville de Hyères : synthèse des pistes explorées. - Jardins secs en ville : états des lieux et perspectives. - Le changement climatique : quel impact sur les végétaux et l'eau en région méditerranéenne ? - Nouvel exotisme. - PépiPIAF : une nouvelle génération de biocapteurs pour la gestion Précise des besoins en eau des arbres. - La tensiométrie : une technique de gestion durable de l’eau et des moyens d’arrosage de jeunes plantations d’arbres. - Automatisation d'irrigation : capteurs FDR et technologies pour le traitement et la transmission de l'information. - Les démarches entreprises pour économiser l’eau d’arrosage dans les espaces verts de Montpellier. - Pour une gestion environnementale des eaux de pluies. - L’eau recyclée, une opportunité à saisir - L’exemple de l’extension bâtie de St Paul en Forêt (83).

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Fichiers liés : 2009_2émes Rencontres de Thuret.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/11/2009
• Auteurs : Philippe KoubbiGuy DuhamelJean-Henri HecqCristina BeansChristophe LootsP. PruvostEric TavernierMarino VacchiCarole Vallet
• Organismes : Biologie des Organismes et Ecosystèmes Aquatiques Muséum national d'Histoire naturelle Laboratoire Ressources Halieutiques de Boulogne Département Milieux et Peuplements Aquatiques Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187
• Publié dans Journal of Marine Systems le 25/10/2020

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