845 research outputs found
Émancipation et dispositif: analyse des voies alternatives
No full textInternational audienceThe chapter tackles head-on the question of what "makes a device" in these alternative paths of research that are emerging between science and activism. The project consists of analysing the forms of organisation that aim to promote emancipation. The author first recalls the role played by devices in the arrangement of reality, and the need to produce a detailed description of them in order to achieve the intentionality of the designers. Her reflection then turns to the characterization of the devices as "counter-spaces". Looking at the specificity of emancipation mechanisms, Lucie Aussel confirms that they do indeed respond to the desire to create "counterspaces" that allow the objectives to be achieved. She also shows that the intention of the initiators is indeed to propose new provisions, whether it is a question of inventing forms that allow for a better appropriation of the objects of research, or of developing areas of convergence between researchers and social movement actors. In conclusion, the need for these initiators to be integrated or even recognised in the system they wish to transform is underlined.Le chapitre aborde de façon frontale la question de savoir ce qui "fait dispositif" dans ces voies alternatives de recherche qui se dessinent entre science et militance. Le projet consiste à analyser les formes d'organisation qui visent à favoriser l'émancipation. L'autrice rappelle dans un premier temps le rôle joué par les dispositifs dans l'agencement de la réalité, et la nécessité d'en produire une description fine pour atteindre l'intentionnalité des concepteur.rices. Sa réflexion se porte ensuite sur la caractérisation des dispositifs comme "contre-espaces". S'intéressant à la spécificité des dispositifs d'émancipation, Lucie Aussel, confirme qu'ils répondent bien à la volonté de constituer des "contre-espaces" permettant l'atteinte des objectifs visés. Elle montre en outre que l'intention des initiateur.rices consiste bien à proposer de nouvelles dispositions, qu'il s'agisse d'inventer des formes permettant une meilleure appropriation des objets de recherche, ou de développer des espaces de convergence entre chercheur.ses et acteur.rices des mouvements sociaux. En conclusion, il est souligné la nécessité pour ces initiateur.rices d'être intégré.es voire reconnu.es dans le système qu'iels souhaitent transformer
Strategic decision in a two-period game using a multi-leader-follower approach. Part 1 – General setting and weighted Nash equilibrium
No full textIn the situation where a new player wants to join a group of players, which is interacting in a non-cooperative way through a generalized Nash game, this new player can face three different situations: playing together with the other players in a generalized Nash game, playing first and waiting for the response of the opponent group, or letting the group play first and act then as a follower. This two-period game can thus lead to a generalized Nash game, a single-leader-multi-follower game, or a multi-leader-single-follower game. Our aim in this couple of papers is to elaborate a decision-making strategy to help this new player when choosing the most beneficial game, beside the fact that he does not know what game the group of other players would like to select. This work, composed of a couple of papers, extends to n+1 players the previous research of B. von Stengel (Games and Economic Behaviour - 2010) done for a two-player symmetric duopoly game. In this first part, we present the main concepts, introduce in particular the new notion of weighted Nash equilibrium, and provide an adapted analysis in the case of a specific model. In the companion second part, the decision-making policy is developed and numerical simulations are conducted
Strategic decision in a two-period game using a multi-leader-follower approach. Part 1 – General setting and weighted Nash equilibrium
No full textIn the situation where a new player wants to join a group of players, which is interacting in a non-cooperative way through a generalized Nash game, this new player can face three different situations: playing together with the other players in a generalized Nash game, playing first and waiting for the response of the opponent group, or letting the group play first and act then as a follower. This two-period game can thus lead to a generalized Nash game, a single-leader-multi-follower game, or a multi-leader-single-follower game. Our aim in this couple of papers is to elaborate a decision-making strategy to help this new player when choosing the most beneficial game, beside the fact that he does not know what game the group of other players would like to select. This work, composed of a couple of papers, extends to n+1 players the previous research of B. von Stengel (Games and Economic Behaviour – 2010) done for a two-player symmetric duopoly game. In this first part, we present the main concepts, introduce in particular the new notion of weighted Nash equilibrium, and provide an adapted analysis in the case of a specific model. In the companion second part, the decision-making policy is developed and numerical simulations are conducted
Mid infrared colors of early type galaxies
No full textWe compare the mid infrared colors of early type galaxies with isochrones that suitably account for the effects of dust in the circumstellar envelopes of AGB stars. We show that these stars affect significantly the integrated colors in the ISO bands. The excess at 10 mum observed in some early type galaxies combined with the optical spectrum, is compatible with a 100% old metal rich population. Limits on the additional young components are: age 0.2 Gyr, mass=0.5% and E(B-V)greater than or equal to0.5 or age 3 Gyr, mass 10% and E(B-V)greater than or equal to0.2
Compétence du tribunal de la procédure collective : la qualité de commerçant, un critère encore déterminant ?
No full textNational audienceCass. com., 27 sept. 2016, n° 14-21.964, F-P+B, M. Moussaoui c/ M. Aussel, ès qual. et a. : JurisData n° 2016-019558 - Le cadre juridique - L’espèce - L’impac
The Deep SPIRE HerMES Survey: spectral energy distributions and their astrophysical indications at high redshift
No full textThe first Herschel view of the mass-SFR link in high-z galaxies
No full textAims: We exploit deep observations of the GOODS-N field taken with PACS, the Photodetector Array Camera and Spectrometer, onboard of Herschel, as part of the PACS evolutionary probe guaranteed time (PEP), to study the link between star formation and stellar mass in galaxies to z ~ 2.
Methods: Starting from a stellar mass - selected sample of ~4500 galaxies with mag4.5 μm < 23.0 (AB), we identify ~350 objects with a PACS detection at 100 or 160 μm and ~1500 with only Spitzer 24 μm counterpart. Stellar masses and total IR luminosities (LIR) are estimated by fitting the spectral energy distributions (SEDs).
Results: Consistently with other Herschel results, we find that LIR based only on 24 μm data is overestimated by a median factor ~1.8 at z ~ 2, whereas it is underestimated (with our approach) up to a factor ~1.6 at 0.5 1011 Msun galaxies from z = 0 to z = 2, and seems to flatten at z > 1.5 in this mass range. Moreover, the most massive galaxies have the lowest SSFR at any z, implying that they have formed their stars earlier and more rapidly than their low mass counterparts (downsizing).
Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Appendices are only available in electronic form at http://www.aanda.or
Une analyse des équilibres pour les problèmes de Nash, les problèmes de Radner et les jeux multi-leader-suiveur
No full textThe first topic of this thesis is devoted to the generalisation of the paper by B. von Stengel to the case of n+1 players. The author defines an (n+1)-player game where a group of n players interacts in an existing GNEP and a new player n+1 wants to enter the game. The problem is tackled with the introduction of the new concept of weighted Nash equilibrium problem which is useful to obtain uniqueness of the equilibrium under mild conditions. The second part is devoted to a study of qualitative stability of parametrised Nash problems in which parameters represent perturbations on the different players' objective functions and their strategy sets. The rest deals with the conditions for the existence of a Radner equilibrium associating with a sequential trading exchange in two periods in which the players' utility functions are quasi-concave. Sufficient conditions to verify the recent concept of assumption on net-lower-sign continuity are also presented under some separability properties.Le premier sujet de cette thèse est consacré à la généralisation au cas de n+1 joueurs du travail de B. von Stengel. L'auteur définit un jeu à (n+1)-joueurs où un groupe de n joueurs interagit selon un GNEP et un nouveau joueur n+1 veut entrer dans le jeu. Le problème est abordé grace à l'introduction du nouveau concept d'équilibre de Nash pondéré. Une stratégie de décision pour le joueur n+1 est discutée. La deuxième partie est consacrée à l'étude de la stabilité qualitative des problèmes de Nash paramétrés par des perturbations sur les fonctions objectives des différents joueurs et leurs ensembles de stratégies. Le dernier travail traite des conditions suffisantes pour l'existence d'un équilibre de Radner pour un problème d'échange séquentiel à deux périodes dans lequel les fonctions d'utilité des joueurs sont quasi-concaves. Des conditions suffisantes pour vérifier le concept récent de continuité net-lower-sign sont également présentées sous certaines propriétés de séparabilité
Evaluation de la dénutrition et prise en charge nutritionnelle orale chez des patients hospitalisés dans une unité de soins de suite et réadaptation gériatrique (étude rétrospective)
No full textLE KREMLIN-B.- PARIS 11-BU Méd (940432101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Lya emitters at redshift 5.7 in the COSMOS field
No full textWe present results from a narrowband optical survey of a contiguous area of 1.95 deg2, covered by the Cosmic Evolution Survey (COSMOS). Both optical narrowband (lambdac=8150 Å and Deltalambda=120 Å) and broadband (B , V, g', r', i', and z') imaging observations were performed with the Subaru prime-focus camera, Suprime-Cam on the Subaru Telescope. We provide the largest contiguous narrowband survey, targeting Lyalpha emitters (LAEs) at z~5.7. We find a total of 119 LAE candidates at z~5.7. Over the wide-area covered by this survey, we find no strong evidence for large-scale clustering of LAEs. We estimate a star formation rate (SFR) density of ~7×10-4 Msolar yr-1 Mpc-3 for LAEs at z~5.7 and compare it with previous measurements. Based on data collected at the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan
- …
