9 research outputs found
Etude de la production de cytokines et d'immunoglobulines au cours de l'inflammation (application à la cirrhose alcoolique et au déficit en mévalonate kinase)
POITIERS-BU MĂ©decine pharmacie (861942103) / SudocSudocFranceF
Improving the Tractability of SVC-based Robust Optimization
International audienceSupport Vector Clustering (SVC) has been proposed in the literature as a datadriven approach to build uncertainty sets in robust optimization. Unfortunately, the resulting SVC-based uncertainty sets induces a large number of additional variables and constraints in the robust counterpart of mathematical formulations. We propose two methods to approximate the resulting uncertainty sets and overcome these tractability issues. We evaluate these approaches on a production planning problem inspired from an industrial case study. The results obtained are compared with those of the SVC-based uncertainty set and the well known budget-based uncertainty set. We find that the approximated uncertainty set based formulation can be solved much faster than the SVC-based formulation. Still, the obtained solutions are comparable to the SVC-based solutions in term of performance
Strain accommodation by slow slip and dyking in a youthful continental rift, East Africa
Continental rifts begin and develop through repeated episodes of faulting and magmatism, but strain partitioning between faulting and magmatism during discrete rifting episodes remains poorly documented. In highly evolved rifts, tensile stresses from far-field plate motions accumulate over decades before being released during relatively short time intervals by faulting and magmatic intrusions1-3. These rifting crises are rarely observed in thick lithosphere during the initial stages of rifting. Here we show that most of the strain during the JulyâAugust 2007 seismic crisis in the weakly extended Natron rift, Tanzania, was released aseismically. Deformation was achieved by slow slip on a normal fault that promoted subsequent dyke intrusion by stress unclamping. This event provides compelling evidence for strain accommodation by magma intrusion, in addition to slip along normal faults, during the initial stages of continental rifting and before significant crustal thinning
Lectures de la Bible : Ier-XVe siĂšcle
International audienceQuelle est lâhistoire de la Bible ? Comment sa version actuelle est-elle parvenue jusquâĂ nous ? Qui sont les hommes qui ont participĂ© Ă la transmission et Ă la rĂ©ception de ses textes ? Quâest-ce qui fait dâelle un livre vivant, qui nâa jamais cessĂ© de rĂ©sonner dans lâhistoire de la civilisation ?Câest Ă ces questions que cet ouvrage se propose de rĂ©pondre, tout au long dâun parcours Ă travers les interprĂ©tations que les Ăcritures ont suscitĂ©es dans le bassin mĂ©diterranĂ©en, depuis les origines jusquâau xve siĂšcle. Il fait entrer le lecteur dans un monde oĂč la Bible nâest pas encore un monument figĂ© de la littĂ©rature, mais un ensemble vivant de textes qui, comme tel, appelle Ă une « interprĂ©tation infinie ». Depuis les rĂ©dacteurs de midrash jusquâaux PĂšres de lâĂglise, en passant par les interprĂštes de lâĂ©poque abbasside et les thĂ©ologiensbyzantins, ce sont les exĂ©gĂšses chrĂ©tienne, juive et musulmane qui sont traitĂ©es conjointement.Chaque chapitre a Ă©tĂ© rĂ©digĂ© par un ou plusieurs spĂ©cialistes et comporte, outre un exposĂ© thĂ©orique dâensemble, de nombreuses illustrations, des encarts, des notes marginales ainsi quâune bibliographie
Lectures de la Bible : Ier-XVe siĂšcle
International audienceQuelle est lâhistoire de la Bible ? Comment sa version actuelle est-elle parvenue jusquâĂ nous ? Qui sont les hommes qui ont participĂ© Ă la transmission et Ă la rĂ©ception de ses textes ? Quâest-ce qui fait dâelle un livre vivant, qui nâa jamais cessĂ© de rĂ©sonner dans lâhistoire de la civilisation ?Câest Ă ces questions que cet ouvrage se propose de rĂ©pondre, tout au long dâun parcours Ă travers les interprĂ©tations que les Ăcritures ont suscitĂ©es dans le bassin mĂ©diterranĂ©en, depuis les origines jusquâau xve siĂšcle. Il fait entrer le lecteur dans un monde oĂč la Bible nâest pas encore un monument figĂ© de la littĂ©rature, mais un ensemble vivant de textes qui, comme tel, appelle Ă une « interprĂ©tation infinie ». Depuis les rĂ©dacteurs de midrash jusquâaux PĂšres de lâĂglise, en passant par les interprĂštes de lâĂ©poque abbasside et les thĂ©ologiensbyzantins, ce sont les exĂ©gĂšses chrĂ©tienne, juive et musulmane qui sont traitĂ©es conjointement.Chaque chapitre a Ă©tĂ© rĂ©digĂ© par un ou plusieurs spĂ©cialistes et comporte, outre un exposĂ© thĂ©orique dâensemble, de nombreuses illustrations, des encarts, des notes marginales ainsi quâune bibliographie
PHARAO flight model : Integration and "on ground" performances tests
International audiencePHARAO (Projet d'Horloge Atomique par Refroidissement d'Atomes en Orbite), which is being developed by the French space agency CNES, is the first primary frequency standard specially designed for operation in space. PHARAO is the main instrument of the ESA mission ACES (Atomic Clock Ensemble in Space) [1]. ACES payload will be installed on-board the International Space Station to perform fundamental physics experiments. Last year [2], some results on two flight model (FM) sub-systems have been presented: Microwave Source performances and Cesium Tube operating as a cold atom clock by using the other engineering model sub-systems. All the FM sub-systems have now passed the qualification process and the whole FM of the cold cesium clock, PHARAO, has been assembled and will undergo extensive tests during the first semester of 2014. The results on the cold atoms manipulation and the metrological evaluation are presented