Philippe JEAN-PIERRE

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2005
• Auteurs : Frédéric MoretLionel ChristiaenCarole DeytsMarylin BlinJean-Stéphane JolyPhilippe Vernier
• Organismes : Développement, évolution et plasticité du système nerveux Développement, évolution et plasticité du système nerveux Développement, évolution et plasticité du système nerveux Institut de Chimie des Substances Naturelles Neurobiologie des processus adaptatifs Développement, évolution et plasticité du système nerveux Développement, évolution et plasticité du système nerveux Institut de Chimie des Substances Naturelles Développement, évolution et plasticité du système nerveux Institut de Neurobiologie Alfred Fessard - Laboratoire de Physiologie Nerveuse
• Publié dans European Journal of Neuroscience le 22/10/2020

---

Résumé : Dopamine is a major neuromodulator synthesized by numerous cell populations in the vertebrate forebrain and midbrain. Owing to the simple organization of its larval nervous system, ascidian tunicates provide a useful model to investigate the anatomy, neurogenesis and differentiation of the dopaminergic neural network underlying the stereotypical swimming behaviour of its chordate-type larva. This study provides a high-resolution cellular analysis of tyrosine hydroxylase (TH)-positive and dopamine-positive cells in Ciona intestinalis embryos and larvae. Dopamine cells are present only in the sensory vesicle of the Ciona larval brain, which may be an ancestral chordate feature. The dopamine-positive cells of the ascidian sensory vesicle are located in the expression domain of homologues of vertebrate hypothalamic markers. We show here that the larval coronet cells also arise from this domain. As a similar association between coronet cells and the hypothalamus was reported in bony and cartilaginous fishes, we propose that part of the ascidian ventral sensory vesicle is the remnant of a proto-hypothalamus that may have been present in the chordate ancestor. As dopaminergic cells are specified in the hypothalamus in all vertebrates, we suggest that the mechanisms of dopamine cell specification are conserved in the hypothalamus of Ciona and vertebrates. To test this hypothesis, we have identified new candidate regulators of dopaminergic specification in Ciona based on their expression patterns, which can now be compared with those in vertebrates.

---

Source

---

• Type de publi. : Communication dans un congrès
• Date de publi. : 01/01/2005
• Auteurs : Arnaud CuccuruJean-Luc DekeyserPhilippe MarquetPierre Boulet
• Organismes : Contributions of the Data parallelism to real time Laboratoire d'Informatique Fondamentale de Lille Laboratoire d'Informatique Fondamentale de Lille Contributions of the Data parallelism to real time Laboratoire d'Informatique Fondamentale de Lille Contributions of the Data parallelism to real time Laboratoire d'Informatique Fondamentale de Lille Contributions of the Data parallelism to real time

---

Résumé : The MARTE RFP (Modeling and Analysis of Real-Time and Embedded systems) was voted by OMG in February 2005. This request for proposals solicits submissions for a UML profile that adds capabilities for modeling Real Time and Embedded Systems (RTES), and for analyzing schedulability and performance properties of UML specifications. One of the particular request of this RFP concerns the definition of common high-level modeling constructs for factorizing repetitive structures, for software, hardware and allocation modeling of RTES. We propose an answer to this particular requirement, based on the introduction of multi-dimensional multiplicities and mechanisms for the description of regular connection patterns between model elements. This proposition is domain independent. We illustrate the use of these mechanisms in an intensive computation embedded system co-design methodology. We focus on what these factorization mechanisms can bring for each of the aspects of the co-design: application, hardware architecture, and allocation.

---

Source

---

• Type de publi. : Ouvrage (y compris édition critique et traduction)
• Date de publi. : 01/01/2005
• Auteurs : André GametMichelle Zancarini-FournelPhilippe ArtièresJean-Luc Pinol
• Organismes : LAboratoire de Recherche Historique Rhône-Alpes - UMR5190 LAboratoire de Recherche Historique Rhône-Alpes - UMR5190 Institut interdisciplinaire d'anthropologie du contemporain LAboratoire de Recherche Historique Rhône-Alpes - UMR5190

---

Source

---

• Type de publi. : Communication dans un congrès
• Date de publi. : 01/01/2005
• Auteurs : Philippe Bordes
• Organismes : Art, images, sociétés

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2005
• Auteurs : N. CabonFrançois Y. PétillonPierre Yves OrainPhilippe P. SchollhammerJean TalarminK.W. Muir
• Organismes : Institut des Sciences Chimiques de Rennes Chimie, Electrochimie Moléculaires et Chimie Analytique Chimie, Electrochimie Moléculaires et Chimie Analytique Chimie, Electrochimie Moléculaires et Chimie Analytique Chimie, Electrochimie Moléculaires et Chimie Analytique Chimie, Electrochimie Moléculaires et Chimie Analytique
• Publié dans Journal of Organometallic Chemistry le 25/10/2020

---

Résumé : The thiolato-bridged binuclear molybdenum complexes [Mo2Cp 2L2(μ-SMe)2(μ-L′)]Y (Cp = η5-C5H5; L′ = SMe, L = Bu tNC (1a), xylNC (1b) or CO (3); L′ = PPh2, L = ButNC (16); Y = BF4, Cl) react with the anionic reagents NaBH4, NaBD4, LiR (R = Me, Bun), R′MgCl (R′ = Me, Pri, Bun or Ph). The products are unsubstituted (5, 7) or substituted (8-12) η4-cyclopentadiene derivatives, [Mo2(η5-C5H 5)(η4-C5H5R)L 2(μ-SMe)3] (L = xylNC, CO), or μ-formimidoyl dinuclear products, [Mo2Cp2L2(μ-SMe) 2(μ-L′)(μ-CHNR)] (L′ = SMe, L = ButNC (4) or xylNC (6); L′ = PPh2, L = ButNC (17)). Since the reduced dinuclear species [Mo2Cp2(CO) 2(μ-SMe)2] and the related oxo-compound [Mo 2Cp2(CO)(O)(μ-SMe)2] are sometimes isolated as minor products, the anionic reagent can play a secondary role as a reductant in these reactions in addition to its main role as a nucleophile. The electronic properties of the donor carbon atoms of the cyclopentadienyl rings and of the terminal ligands L, together with the nature of the anionic reagent, are the dominant factors controlling selective formation of 4-12 and 17. Tetrafluoroboric acid reacts with the substituted cyclopentadiene derivatives 9, 11 and 12 to form new functionalised cyclopentadienyl derivatives, [Mo 2(η5-C5H5)(η5- C5H4R)(CO)2(μ-SMe)3](BF 4) (R = Me (13), Bun (14) or Ph (15)). New complexes have been characterised by spectroscopic and chemical methods, supplemented for 5, 6 and 12 by X-ray diffraction studies at 100 K. © 2005 Elsevier B.V. All rights reserved.

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2005
• Auteurs : Philippe CugierGilles BillenJean-François GuillaudJosette GarnierAlain Ménesguen
• Organismes : Unité Dynamiques des Écosystèmes Côtiers Structure et fonctionnement des systèmes hydriques continentaux Unité Dynamiques des Écosystèmes Côtiers Structure et fonctionnement des systèmes hydriques continentaux Unité Dynamiques des Écosystèmes Côtiers
• Publié dans Journal of Hydrology le 23/10/2020

---

Résumé : Because of the occurrence of episodic blooms of toxic dinoflagellates, eutrophication of the Seine Bight is a subject of growing concern. In order to better understand the relationships between these processes and human activity in the Seine watershed, two models have been used in connection: A model describing nutrient (N, P, Si) transfer processes at the scale of the whole Seine Basin (RIVERSTRAHLER [Billen, G., Garnier, J., Ficht, A., Cun, C., 2001. Modelling the response of water quality in the Seine River Estuary in response to human activity in the watershed over the last 50 years. Estuaries 24, 977-993]), allowing human activity (agricultural practices, waterscape management, urban wastewater management, etc.) to be related to fluxes delivered to the sea. A model of 3D hydrodynamic and ecological model of the Seine Bight (SiAM-3D/ELISE [Cugier, P., 1999. Modélisation du devenir à moyen terme dans l'eau et le sédiment des éléments majeurs (N, P, Si, O) rejetés par la Seine en baie de Seine. Thèse de doctorat, Univ. de Caen, p. 241; Cugier, P., Le Hir, P., 2000. Modélisation 3D des matières en suspension en baie de Seine Orientale (Manche, France). C. R. Acad. Sci. Paris, Sciences de la Terre et des planétes 331, 287-294]), capable of reproducing the spatio-temporal variations of sediment transport, thermo-haline stratification and phytoplanktonic development in the plume of the Seine river. The models are validated by their ability to reproduce observed trends of interannual variations of nutrients delivered by the Seine during the last 50 years, as well as the response of the marine system in terms of diatoms and dinoflagellate development, for which data are available from 1976 to 1984 for the former and from 1987 to 1997 for the latter. The results show clearly that dry years, where silica inputs show a deficit with respect to nitrogen and phosphorus, are those where summer blooms of dinoflagellates are particularly pronounced. Various scenarios of human activity in the watershed are simulated by the two models, including a reconstitution of the 'pristine' state, a historical state corresponding to the situation at the end of the 18th century, as well as several scenarios corresponding to the present situation with alternative policies of wastewater nitrogen and/or phosphorus treatment.

---

Fichiers liés : Cugier2005.pdf

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2005
• Auteurs : Isabelle BraudThierry BariacMichel VauclinZakaria BoujamlaouiJean Paul GaudetPhilippe BironPatricia Richard
• Organismes : Laboratoire d'étude des transferts en hydrologie et environnement Biogéochimie et écologie des milieux continentaux Laboratoire d'étude des transferts en hydrologie et environnement Laboratoire de Chimie Analytique Agricole Laboratoire d'étude des transferts en hydrologie et environnement Biogéochimie et écologie des milieux continentaux Biogéochimie et écologie des milieux continentaux
• Publié dans Journal of Hydrology le 23/10/2020

---

Résumé : Stable water isotopes are tracers of water movement within the soil–vegetation–atmosphere system. They have the potential for a better understanding of water vapour transport within soils, evaporation and transpiration processes. To better understand those potentialities and possible lack of knowledge, a coupled heat-water and stable isotope transport model, called SiSPATIsotope was developed for bare soil. We presented the theoretical basis of the model in the first part of the paper, including a first validation of the likelihood of model results and a comparison with existing analytical solutions. In this companion paper, we go a step further by comparing the model results with two data sets collected on laboratory columns. In both cases, five soil columns were saturated and let drying during 173 and 253 days, respectively. At selected dates, one of the column was cut into slices and analysed to determine the volumetric water content, the deuterium and oxygen 18 concentrations profiles. The first data set was acquired on disturbed soil columns. The second one was collected on non-disturbed soil columns and it included a complete monitoring of atmospheric variables. It was not the case for the first one and a sensitivity analysis of model results to the air humidity was performed, showing its large influence on surface isotope concentrations. For both data sets, we also conducted a sensitivity analysis to the formulation of the kinetic fractionation factor, conditioning the resistance to isotope transport between the soil surface and the atmosphere, and to the value of soil tortuosity. The results showed that the model was able to reproduce the behaviour of the observed concentration profiles. A fair agreement between measured and calculated values was obtained for all profiles for the disturbed soil. Near surface concentrations were in general overestimated for the undisturbed soil, raising the question of possible influence of immobile water on concentrations values. We showed that soil tortuosity was mostly influential on the depth of the peak isotope concentration, which opens perspectives for its retrieval from the measurement of isotope concentration profiles. When only molecular diffusion was considered, the model was not able to reproduce the liquid slopes of the deuterium/oxygen 18 relationships at the beginning of the drying process. Results were more in agreement with the data when molecular diffusion combined with turbulent transfer were considered. Further laboratory and field experiments are, however, still required to derive a formulation of the kinetic fractionation factor adapted to drying soils and non-saturated conditions.

---

Source

---

• Type de publi. : Chapître d'ouvrage
• Date de publi. : 01/01/2005
• Auteurs : Didier RouxelN. BonassoPhilippe PigeatFrédéric LapostolleJean-Pierre ArnouldJürgen von Stebut
• Organismes : Institut Jean Lamour

---

Source

---

• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2005
• Auteurs : Jean-Pierre HamardPhilippe Ballon
• Organismes : Écosystèmes forestiers Écosystèmes forestiers
• Publié dans Forêt Entreprise le 26/10/2020

---

Résumé : Un observatoire des dégâts de cervidés en forêt a été réalisé durant l'hiver 1999/2000 à l'échelle de cinq départements (Landes, Oise, Sarthe, Tarn et Vosges). Cette étude dresse un état de la réalité des dégâts et en évalue l'impact sur la sylviculture. D'une manière générale, en sylviculture régulière, la surface forestière sensible aux dégâts de cervidés demeure faible (1 à 4%). L'origine des peuplements, la nature des essences, l'importance des populations de cervidés et leur gestion jouent un rôle déterminant dans l'acuité des dommages. Ce sont l'Oise et les Vosges qui subissent les situations les plus préoccupantes.

---

Source

---

• Type de publi. : Ouvrage (y compris édition critique et traduction)
• Date de publi. : 01/01/2005
• Auteurs : Jean-Luc BergerDominique BlancardClaudine CharpentierMorvan CoarerPhilippe DarrietLaurence GuerinRémi Guérin-SchneiderAhmed LebrihiValérie LempereurOdile MeurguesChristine MouilletPierre SaurisBéatrice Vincent
• Organismes : Institut Français de la Vigne et du Vin [Siège] Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) Institut Universitaire de la Vigne et du Vin "Jules Guyot" Institut Français de la Vigne et du Vin [Siège] Oenologie Institut Français de la Vigne et du Vin [Siège] Institut Français de la Vigne et du Vin [Siège] École nationale supérieure agronomique de Toulouse Institut Français de la Vigne et du Vin [Siège] Bureau interprofessionnel des vins de Bourgogne Office National Interprofessionnel des Vins Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) Institut Français de la Vigne et du Vin [Siège]

---

Source