Search results for "éter"

Les dispositifs de prise en charge de la difficulté scolaire dans le premier degré - étude de leur fonctionnement et évaluation comparée de leur infl…

2018

National audience

La formation continue favorise-t-elle l'augmentation du salaire ?

1999

International audience

Essai de mesure de l'efficacité différenciée d'un plan "Réussite en licence " selon les acquis initiaux des étudiants

2014

International audience; Cet article propose une étude exploratoire de l'efficacité du plan "Réussite en licence" (PRL) en 1ère année en fonction du niveau initial des étudiants appréhendé à l'aide de tests de rentrée. L'examen des déterminants de la réussite aux examens du 1er semestre montre des effets positifs et significatifs du dispositif PRL pour les plus faibles, liés au caractère obligatoire du tutorat. Des effets moins positifs sont également avancés, notamment en termes d'abandon. Cette recherche démontre également les limites de l'évaluation du PRL via des taux bruts de réussite en raison des modifications du public étudiant sur une courte période et de la baisse du niveau des étu…

Vers une démocratisation de l'éducation et de la formation par les MOOC ?

2017

International audience; De nombreux chercheurs, en sciences de l'éducation, se sont intéressés à étudier récemment les pratiques enseignantes selon l'approche ergonomique du travail (e.g. Coutarel et al., 2015 ; Delvolvé & Margot, 2001 ; Durand & Veyrunes, 2005 ; Ria, 2008 ; Simar & Jourdan, 2011). Selon cette approche, la mise en ouvre des prescriptions officielles par le professeur dans sa classe est systématiquement précédée par un processus de questionnement professionnel fait au sein du collectif de travail de l'école. Et ce, afin de proposer une réponse commune à ces prescriptions (Amigues, 2002). Ce travail du collectif-enseignant serait à l'origine de la diversité des pratiques des …

MOOCs : Vers une reproduction des inégalités sociales ? Etude de 14 MOOCs de la plateforme nationale France Université Numérique (FUN)

2016

International audience

RVVS 2013

2013

How long does it take to earn a higher education degree in Spain ?

2010

International audience; The purpose of this paper is to identify the main determinants of time-to-degree in higher education. Our results use retrospective data on the full cohort of first-time entering students who embarked on short and long programs from one university in Spain and who were observed over an 8-year period ending in 2004. The descriptive analyses show that less than 40 percent of degree recipients are able to graduate within the minimum period of time. Duration models are estimated for different types of programs. The empirical results show that time-to-completion is extremely sensitive to students' abilities and, to a much lesser extent, to socio-economic background, motiv…

Entrepreneurship in Burkina Faso : An Economic Analysis of Occupational Choices in the Labor Market and Student Entrepreneurial Intentions

2020

The dominant view of entrepreneurship, particularly in developed countries, is a risky, dynamic activity undertaken voluntarily by a certain category of individuals - " so-called superstars" - in order to benefit more earning opportunities and greater social influence. However, this dynamic view of entrepreneurship contrasts with what is generally described in developing countries, where self-employment is largely conducted in the informal sector; a segment of the labor market that is considered "precarious" and only allows the individual to escape unemployment. Nevertheless, a number of studies, in Africa and more so in Latin America, show that this segment is desirable and likely to provi…

Génétique des textes et système chaotique

2016

Textual genetics and chaotic system Although we share Louis Hay's idea that it is impossible to homologate and systematize the operations which can be observed in manuscripts, it is however possible to interpret whatever creation process in terms of the passage from entropy to order. The possibility of an analogy between text and chaotic system had been advanced by Noëlle Batt according to whom each work actually satisfies the principles of the chaotic system. It is starting from such principles that we will try to show the analogy between chaotic system and textual genetics: 1. The fact that we are dealing with an evolving system (with variables and permanent features) endowed with a tempo…

CATHAR : CATHeter for ARRhythmias : determination of depth of burned biological tissues with microwave

2015

Cardiac arrhythmia substrates may be treated by intracardiac ablations which consist in burning specific atrial or ventricular endocardial substrates. Created lesions which are not transmural may be responsible for arrhythmia recurrences. To date, the depth of the lesion inside the endocardium can't be assessed accurately during the procedures. Our experimental work has focused on microwave characterization of biological tissues (in vitro) to assess the burn depth. Using a reflection technique with a coaxial probe in contact with tissues, measurements were made over a wide frequency range (100 MHz to 6 GHz). The measured reflection coefficient is known to be directly related to the dielectr…