Philippe JEAN-PIERRE

---

• Type de publi. : Chapître d'ouvrage
• Date de publi. : 01/01/2010
• Auteurs : Philippe Martin
• Organismes : Religions et croyances

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Nicolas BarbierPierre CouteronChristophe ProisyYadvinder MalhiJean-Philippe Gastellu-Etchegorry
• Organismes : Laboratoire de Complexité et Dynamique des Systèmes Tropicaux, Research Fellow FNRS Botanique et Modélisation de l'Architecture des Plantes et des Végétations Botanique et Modélisation de l'Architecture des Plantes et des Végétations Centre for the Environment, Centre d'études spatiales de la biosphère
• Publié dans Global Ecology and Biogeography le 25/10/2020

---

Résumé : Aim: The size structure of a forest canopy is an important descriptor of the forest environment that may yield information on forest biomass and ecology. However, its variability at regional scales is poorly described or understood because of the still prohibitive cost of very high-resolution imagery as well as the lack of an appropriate methodology. We here employ a novel approach to describe and map the canopy structure of tropical forests. Location Amazonia. Methods: We apply Fourier transform textural ordination (FOTO) techniques to subsamples of very high-resolution satellite imagery freely available through virtual globe software (e.g. Google Earth®) to determine two key structural variables: apparent mean crown size and heterogeneity in crown size. A similar approach is used with artificial forest canopy images generated by the light interaction model (discrete anisotropic radiative transfer, DART) using three-dimensional stand models. The effects of sun and viewing angles are explored on both model and real data. Results: It is shown that in the case of canopies dominated by a modal size class our approach can predict mean canopy size to an accuracy of 5%. In Amazonia, we could evidence a clear macrostructure, despite considerable local variability. Apparent crown size indeed consistently increases from about 14 m in wet north-west Amazonia to more than 17 m for areas of intermediate dry season length (1–3 months) in south and east Amazonia, before decreasing again towards the ecotone with the Cerrado savanna biome. This general trend reflects the known variation of other forest physiognomic properties (height) reported for South America and Africa. Some regions show significantly greater canopy heterogeneity, a feature that may be related to substratum, perturbation rate and/or forest turnover rate. Main conclusions: Our results demonstrate the feasibility and interest of large-scale assessment of rain forest canopy structure

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Johan YansThomas GerardsPhilippe GerriennePaul SpagnaJean DejaxJohann SchnyderJean-Yves StormeEdouard Keppens
• Organismes : Fondation Universitaire Notre Dame de la Paix Paléobotanique, Paléopalynologie et Micropaléontologie Paléobotanique, Paléopalynologie et Micropaléontologie Service de Géologie Fondamentale et Appliquée Département Histoire de la Terre Institut des Sciences de la Terre de Paris Fondation Universitaire Notre Dame de la Paix Earth System Sciences
• Publié dans Palaeogeography, Palaeoclimatology, Palaeoecology le 02/11/2020

---

Source

---

• Type de publi. : Ouvrage (y compris édition critique et traduction)
• Date de publi. : 01/01/2010
• Auteurs : Maryline CrivelloKarine BassetDimitri NicolaïdisOurania PolycandriotiEvangelia BaltaMichèle BaussantMaria CouroucliKarima DirecheGhislaine Glasson DeschaumesPhilippe JockeyFrançoise LantheaumeMarie-Claire LavabreStéphane MichonneauAbderrahmane MoussaouiMüfide PekinOuanassa Siari TengourFrançois SiinoPierre SintèsGeorges Tolias
• Organismes : Temps, espaces, langages Europe méridionale-Méditerranée Aix Marseille Université Territoires, économie, enjeux sociétaux National Hellenic Research Foundation [Athens] Centre de recherche francais de Jérusalem Laboratoire d'ethnologie et de sociologie comparative Centre Camille Jullian - Histoire et archéologie de la Méditerranée et de l'Afrique du Nord de la protohistoire à la fin de l'Antiquité Université Lumière - Lyon 2 Education, Cultures, Politiques Institut des Sciences sociales du Politique Institut de Recherches Historiques du Septentrion (IRHiS) - UMR 8529 Groupe de recherches et d'études sur la Méditerranée et le Moyen-Orient Institut de Recherches et d'Etudes sur les Mondes Arabes et Musulmans Temps, espaces, langages Europe méridionale-Méditerranée Aix Marseille Université

---

Résumé : Depuis les années 1980, les liens entre histoire et mémoire sont régulièrement interrogés lors de débats tant scientifiques que publics ou politiques. Si le sujet passionne la France - les polémiques relatives aux « lois mémorielles », au passé colonial ou à « l’identité nationale »en témoignent -, il est encore peu étudié à l’aune de l’espace méditerranéen. Force est de constater une multiplication des revendications et des conflits dont les enjeux sont l’affirmation ou la redéfinition des identités - enjeux indissociables d’un véritable « travail de mémoire », c’est-à-dire un travail de dévoilement d’un « passé qui ne passe pas » (le génocide arménien, la purification ethnique en Palestine ou en Bosnie, la colonisation…). L’instrumentalisation du passé à des fins politiques n’est pas une spécificité méditerranéenne, mais elle a pris dans cet espace aux identités fragilesune coloration particulièrement vive. Ainsi, des Balkans au Proche-Orient en passant par le Maghreb, la confrontation entre les différentes échelles de mémoire - étatique ou collective, officielle ou marginalisée - concourt à exacerber les antagonismes. Cet ouvrage qui rassemble des contributions d’anthropologues, d’historiens, de géographes, d’archéologues et de politologues interroge les mécanismes de fabrication de ces héritages qui divisent ou rapprochent les hommes au sein d’un même espace.

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 29/12/2009
• Auteurs : Julien VinitGéraldine MullerPhilip BielefeldPierre PfitzenmeyerPhilippe BonniaudBernard LorcerieJean-François Besancenot
• Organismes : Service de médecine interne et des maladies sytémiques (hôpital général, CHU Dijon) Service de médecine interne et des maladies sytémiques (hôpital général, CHU Dijon) Service de médecine interne et des maladies sytémiques (hôpital général, CHU Dijon) Service de médecine gériatrique (CHU de Dijon - Centre gériatrique de Champmaillot - EHPAD) Service des maladies respiratoires [CHU de Dijon] Service de Médecine Interne (SOC 1 et SOC 2) [CHU de Dijon] Service de médecine interne et des maladies sytémiques (hôpital général, CHU Dijon)
• Publié dans Rheumatology International le 29/10/2020

---

Résumé : Churg-Strauss Syndrome (SCS) is a systemic vasculitis associated with asthma and eosinophilia. The aim of our work is to describe this pathology in the Burgundian population in France. We counted from the hospitalisation data-processing summaries, the whole of the SCS hospitalised in Burgundy between 1998 and 2008. During the follow-up, the clinical and paraclinical characteristics of every patient were collected. The average prevalence is of 11.3 per million inhabitants and the incidence is of 1.2 new cases per million inhabitants per annum. There exists however, a great prevalence disparity and incidence amongst the various departments of the area. The patient's average follow-up is of 7.7 years. In 23% of the cases one finds a starting factor for vasculitis. The delay between the first signs and the diagnostic is an average of 61 months. The ANCA are positive in 26% of cases and of anti-myeloperoxidase specificity in 83% of cases ( < 0.001). The most profitable biopsies are essentially cutaneous and neuromuscular. At the diagnostic, two-third of the patients have had a treatment adapted according to the current recommendations based on the Five Factor Score. The remission rate within a 1-year period is of 77%. The remission is strongly correlated to the therapeutic protocol associating corticoids and cyclophosphamide ( < 0.05). In conclusion, the prevalence of SCS in our area is similar to that observed in other European regions. However, this vasculitis remains a difficult and often a tardive diagnostic pathology.

---

Fichiers liés : PEER_stage2_10.1007%2Fs00296-009-1275-y.pdf

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 25/12/2009
• Auteurs : Mickaël BourgoinMichael BerhanuBasile GalletRomain MonchauxPhilippe OdierJean-François PintonNicolas PlihonRomain VolkStéphan FauveNicolas MordantFrançois PétrélisSébastien AumaîtreArnaud ChiffaudelFrançois DaviaudBérengère DubrulleFlorent Ravelet
• Organismes : Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] Laboratoire de Physique Statistique de l'ENS Laboratoire de Physique Statistique de l'ENS Service de physique de l'état condensé Laboratoire de Physique de l'ENS Lyon Laboratoire de Physique de l'ENS Lyon Laboratoire de Physique de l'ENS Lyon Laboratoire de Physique de l'ENS Lyon Laboratoire de Physique Statistique de l'ENS Laboratoire de Physique Statistique de l'ENS Laboratoire de Physique Statistique de l'ENS Service de physique de l'état condensé Service de physique de l'état condensé Service de physique de l'état condensé Service de physique de l'état condensé Service de physique de l'état condensé Laboratoire de Dynamique des Fluides
• Publié dans Journal of Fluid Mechanics le 26/10/2020

---

Résumé : We report the first experimental observation of a bistable dynamo regime. A turbulent flow of liquid sodium is generated between two disks ill the von karman geometry (VKS experiment). When one disk is kept at rest, bistability is observed between a stationary and an oscillatory magnetic field. The stationary and oscillatory branches occur in the vicinity of a codimension-two bifurcation that results from the coupling between two modes of magnetic field. We present an experimental study or the two regimes and study in detail the region of bistability that we understand ill terms of dynamical system theory. Despite the very turbulent nature of the flow, the bifurcations of the magnetic field are correctly described by a low-dimensional model. In addition, the different regimes are robust; i.e. turbulent fluctuations do not drive any transition between the oscillatory and stationary states in the region of bistability.

---

Fichiers liés : Berhanu2009_JFM.pdf

---

Source

---

• Type de publi. : Communication dans un congrès
• Date de publi. : 19/12/2009
• Auteurs : Minh Tuan TranPhilippe SouèresMichel TaïxBenoît Girard
• Organismes : Équipe Mouvement des Systèmes Anthropomorphes Équipe Mouvement des Systèmes Anthropomorphes Équipe Mouvement des Systèmes Anthropomorphes Institut des Systèmes Intelligents et de Robotique

---

Résumé : Whether the central nervous system of primates uses a body-centered or an eye-centered frame for reaching is still a controversial debate in neurosciences. Does the proprioceptive information allow to represent the visual information with respect to the body or inversely, does it transform the hand position in retinal coordinates? In this paper, we implement and test two control schemes associated to each of these two hypotheses by using a computational approach from robotics. To this end, biological models of motor control are applied to a realistic dynamic model of upper body including a 4 DOF eye-neck kinematic chain and a 6DOF arm. Important characteristics, such as proprioceptive biases and sensory delay, are considered. Simulation results allow to compare the geometry of trajectories and illustrate the better robustness of the eye-centered control scheme with respect to biases and sensory delay. Applications to the control of the humanoid robot HRP2 are finally presented.

---

Source

---

• Type de publi. : Communication dans un congrès
• Date de publi. : 14/12/2009
• Auteurs : Matthieu PommierKathy S. LawCathy ClerbauxSolène TurquetyJuliette Hadji-LazaroDaniel HurtmansPierre-François CoheurH. SchlagerGérard AncelletJean-Daniel ParisPhilippe NédelecGlenn S. DiskinJames R. PodolskePeter Bernath
• Organismes : TROPO - LATMOS TROPO - LATMOS TROPO - LATMOS Laboratoire de Météorologie Dynamique (UMR 8539) TROPO - LATMOS Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique DLR Institut für Physik der Atmosphäre = DLR Institute of Atmospheric Physics TROPO - LATMOS Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] Laboratoire d'aérologie NASA Langley Research Center [Hampton] NASA Ames Research Center Department of Chemistry [Waterloo]

---

Résumé : Carbon monoxide (CO) is a reactive toxic gas, mainly produced by the combustion of fossil fuels and vegetation burning. It also plays an important role in the budget of tropospheric ozone and can be used a tracer for transport of sources of different origin. The impact of the transport of such pollutants on climate change in the Arctic still remains to be quantified with global models often failing to reproduce seasonal cycles especially in summertime. One possible explanation is the underestimation of modelled ozone production in forest fires plumes. This study focuses on the analysis of the POLARCAT/IPY spring and summer campaigns which took place, in Kiruna, Sweden in April 2008 and in Kangerlussuaq, Greenland in July 2008. During the campaigns different air masses were sampled including clean air, polluted plumes originating from anthropogenic sources in Europe and North America, and forest fire plumes from Siberia and Canada. These different transport pathways were well observed by the IASI (Infrared Atmospheric Sounding Interferometer) interferometer, onboard the METOP-A satellite. Measurements of CO collected by the ATR-42 aircraft as part of POLARCAT-France have been used to validate the satellite measurements. Furthermore, a more general validation procedure was developed to compare IASI with ATR-42, DLR-Falcon, NASA DC-8 and NOAA P3-B CO data. YAK summer flights in Siberia are also available for these comparisons. Both in-situ and satellite data are also compared to simulations from the LMDz-INCA global chemistry model. We will discuss how the good global coverage of IASI and regional flights allow can be used improve estimates of CO emissions and to evaluate the impact of forest fires on CO and O₃ (ozone) distributions.

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 10/12/2009
• Auteurs : Pierre Laurent-PuigAnne CayreGilles ManceauEmmanuel BucJean-Baptiste BachetThierry LecomtePhilippe RougierAstrid LievreBruno LandiValerie BoigeMichel DucreuxMarc YchouFrederic BibeauOlivier BoucheJulia ReidSteven StoneFrédérique Penault-Llorca
• Organismes : Bases moléculaires de la réponse aux xénobiotiques Génétique, immunothérapie, chimie et cancer (GICC), UMR 6239 CNRS [2008-2011]
• Publié dans Journal of Clinical Oncology le 01/11/2020

---

Résumé : Purpose The occurrence of KRAS mutation is predictive of nonresponse and shorter survival in patients treated by anti-epidermal growth factor receptor (anti-EGFR) antibody for metastatic colorectal cancer (mCRC), leading the European Medicine Agency to limit its use to patients with wild-type KRAS tumors. However, only half of these patients will benefit from treatment, suggesting the need to identify additional biomarkers for cetuximab-based treatment efficacy. Patients and Methods We retrospectively collected tumors from 173 patients with mCRC. All but one patient received a cetuximab-based regimen as second-line or greater therapy. KRAS and BRAF status were assessed by allelic discrimination. EGFR amplification was assessed by chromogenic in situ hybridization and fluorescent in situ hybridization, and the expression of PTEN was assessed by immunochemistry. Results In patients with KRAS wild-type tumors (n = 116), BRAF mutations (n = 5) were weakly associated with lack of response (P = .063) but were strongly associated with shorter progression-free survival (P < .001) and shorter overall survival (OS; P < .001). A high EGFR polysomy or an EGFR amplification was found in 17.7% of the patients and was associated with response (P = .015). PTEN null expression was found in 19.9% of the patients and was associated with shorter OS (P = .013). In multivariate analysis, BRAF mutation and PTEN expression status were associated with OS. Conclusion BRAF status, EGFR amplification, and cytoplasmic expression of PTEN wereassociated with outcome measures in KRAS wild-type patients treated with a cetuximab-based regimen. Subsequent studies in clinical trial cohorts will be required to confirm the clinical utility of these markers.

---

Source

---

• Type de publi. : Communication dans un congrès
• Date de publi. : 09/12/2009
• Auteurs : Philippe WarinCarine ChatainCatherine ChauveaudStéphanie GuttonJean-Jacques MoulinAntoine RodeCatherine SassEmilie Labbe
• Organismes : Pacte, Laboratoire de sciences sociales Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie Pacte, Laboratoire de sciences sociales Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie Pacte, Laboratoire de sciences sociales Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie Pacte, Laboratoire de sciences sociales Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie Pacte, Laboratoire de sciences sociales Centre technique, d'appui et de formation des centres d'examens de santé de l'Assurrance maladie

---

Résumé : Présentation synthétique de la recherche "Le non-recours aux soins des actifs précaires" réalisée dans le cadre du programme Santé Environnement / Santé Travail de l'ANR.

---

Fichiers liés : COM_Colloque_SEST_ANR_decembre_2009.pdf

---

Source