Search results for "Acteurs"
showing 10 items of 58 documents
Asymptotic analysis of the form-factors of the quantum spin chains
2020
Since a long-time, the quantum integrable systems have remained an area where modern mathematical methods have given an access to interesting results in the study of physical systems. The exact computations, both numerical and asymptotic, of the correlation function is one of the most important subject of the theory of the quantum integrable models. In this context an approach based on the calculation of form factors has been proved to be a more effective one. In this thesis, we develop a new method based on the algebraic Bethe ansatz is proposed for the computation of the form-factors in thermodynamic limit. It is applied to and described in the context of isotropic XXX Heisenberg chain, w…
A psychosocial reading of sport actors’ antisocial behaviours : the influence of identity processes
2021
This doctoral work is interested in stakeholder’s antisocial behaviors. This phenomenon is approached by means of the theories bound to the social categorization, and more precisely, the social identity approach and the conception of the social partitions. Following this theoretical development, two mainstudies were led, the second one drawing from the first. A third study was led to reinject the acquired knowledge in the field.The first study, articulating around five sub-studies, aimed at determining the content, the perceived causes, as well as the perceived consequences, of sport stakeholders’ antisocial behaviors. Regarding the content of antisocial behaviors, harm and disadvantage asp…
Breast cancer screening : socioeconomic factors influencing the participation and screening round adequacy
2013
Mammography screening allowed breast tumors detection in early stage while treatments are less aggressive. Despite the fact that organized mammography screening has been free of charge for the target population since 2004 in France, the participation rate to the programme remains low.The aim of the studies was to investigate individual and area-level socioeconomic factors explaining low breast cancer screening attendance, individual factors influencing mammography screening round adequacy and to assess the evidence of screening round adequacy in the discovery of breast tumors.The results showed that women living in most deprived areas or rural areas, those covered by self-employed insurance…
Telomere length and cardiovascular disease
2010
SummaryTelomeres are structures composed of deoxyribonucleic acid repeats that protect the end of chromosomes, but shorten with each cell division. They have been the subject of many studies, particularly in the field of oncology, and more recently their role in the onset, development and prognosis of cardiovascular disease has generated considerable interest. It has already been shown that these structures may deteriorate at the beginning of the atherosclerotic process, in the onset and development of arterial hypertension or during myocardial infarction, in which their length may be a predictor of outcome. As telomere length by its nature is a marker of cell senescence, it is of particula…
L’influence des facteurs stratégiques et organisationnels sur les relations entre contrôle de gestion environnemental et apprentissage organisationne…
2020
Cet article étudie les relations entre contrôle de gestion environnemental (CGE) et apprentissage organisationnel (AO) en inscrivant le modèle de Simons (1995) dans une perspective contingente. Par des facteurs stratégiques et organisationnels, ce modèle enrichi explique les liens entre les modes de contrôle (diagnostique et interactif) de Simons et les niveaux d’apprentissage (en simple et double boucle) d’Argyris et Schön (1978). S’appuyant sur le « cas révélateur » d’une éco-PME missionnaire, l’étude montre l’influence de trois facteurs (valeurs fortes, stratégie proactive, cycle de vie des activités) sur les quatre configurations relationnelles CGE-AO et ouvre de nouvelles perspectives …
Thermodynamic limit of particle-hole form factors in the massless XXZ Heisenberg chain
2010
We study the thermodynamic limit of the particle-hole form factors of the XXZ Heisenberg chain in the massless regime. We show that, in this limit, such form factors decrease as an explicitly computed power-law in the system-size. Moreover, the corresponding amplitudes can be obtained as a product of a "smooth" and a "discrete" part: the former depends continuously on the rapidities of the particles and holes, whereas the latter has an additional explicit dependence on the set of integer numbers that label each excited state in the associated logarithmic Bethe equations. We also show that special form factors corresponding to zero-energy excitations lying on the Fermi surface decrease as a …
From the Rhin-Rhône TGV to Rhin-Rhône "territory" : reticularity, mobility and territoriality in an intermediary space
2013
High-speed rail, destined to reduce the times-distances between major French and European cities, tends to push intermediary spaces into a rather unfavorable situation. Strongly polarized by the large urban centers that surround them, these intermediary areas are usually reduced to their sole status of transit areas. However, the Eastern tract, the first section of the LGV Rhine-Rhône project, through its regional dimension, constitutes a factor in the emergence of a territorialization process of the Rhine-Rhone area. Thus, the arrival of high speed rail is responsible for the creation of a network of cities that extends from Dijon to Basel. To address this territorial issue, a detailed ana…
Les déterminants de la réussite à l’université. Quels apports de la recherche en Éducation ? Quelles perspectives de recherche ?
2016
In France, the university is experiencing the problem of failure, especially in the first cycle. This article aims to establish, in a chronological perspective, a literature review of the contributions of educational research in the French context, the various factors contributing to this failure. The aim is firstly to show how evolved the research on the determinants of academic success since the 1990s. It is, secondly, to examine what types of research can still be conducted on the subject. That will lead us in particular that, despite questioning from several decades of university teaching, few studies have so far been conducted in the French context regarding the impact of teaching prac…
Producteurs, médiateurs, usagers versus auteurs, acteurs, spectateurs - Comment penser la communication de nouvelles thérapeutiques ?
2014
National audience
Evaluation of interaction metaphors for collaborative work distant immersive sites
2009
The design of the virtual environment (VE) has to take into account several factors including the input and output devices, the design of the interaction metaphor or the application domain. In addition to these considerations, the design of a collaborative virtual environment (CVE) needs to take into account the collaborative aspect of the interaction metaphor. In one hand, the interaction metaphor has to be designed for the best possible task performance. In the other hand, the influence of the interaction metaphor on the user's experience (in terms of psychological and social aspects) constitutes an important research question. To address this research question, two experimental studies h…