Search results for "Bénéfices"
showing 9 items of 9 documents
La vulgarisation scientifique et les doctorants : mesure de l'engagement, exploration d'effets sur le chercheur
2018
We ask two questions: what are the factors that influence researchers’ public engagement activities (PEA)? And what are the impacts of these activities on the researcher? After presenting a historical overview of PEA, we analyze 20 surveys carried out between 1967 and 2014. We identify some global trends: PEA is generally positively perceived, researcher’s engagement is occasional but robust. Besides those trends some differences appear between studies based on theoretical models and empirical studies: the latter report complaints such as lack of time or lack of recognition, whereas theoretical-based ones challenge these statements.To further explore our two questions, we used two approache…
Internet of things: an exploratory study of the co-creation of value
2016
Internet Of Things (IoT) provides consumers a continuous access to real-time notifications and data. Using the « Service-Dominant Logic Theory » framework (Vargo and Lusch, 2004), this paper aims to compare brands value propositions and consumer perceptions regarding bracelets and smart watches. Data analysis is based on two sets of data collections: the first concerns the content of eight manufacturers websites; the second comes from a non-participant observation of consumer opinions about connected devices (netnography). Results show a typology of gains and pains, significant interactions between the different value components and consumers’ compensation phenomena. Furthermore, discrepanc…
ANALYSE EMPIRIQUE DES ECARTS DE PREVISIONS DE BENEFICES DANS LES PROSPECTUS D'INTRODUCTION : LE CAS FRANCAIS
2002
International audience; Sur un échantillon de 151 introductions en bourse en France, nous analysons les biais et la rationalité des prévisions de bénéfices contenues dans les prospectus d'introduction. Nous proposons également un modèle explicatif des écarts de prévisions et vérifions si la performance boursière des actions est fonction des écarts de prévision.
Effect of host plant quality on male sexual performances and consequences on female reproductive output in a phytophagous moth
2016
The abundance of phytophagous insects is determined by numerous interacting biotic and abiotic factors. In capital-breeding phytophagous insects, larval host plant quality is a key determinant of the adult phenotype and the performance of both males and females. Curiously, if the effect of host plant quality on female reproductive success is well-established, little effort has been conducted to determine this effect on male reproductive success. Moreover, in Lepidoptera, males transfer to females a spermatophore containing sperm and accessory gland products rich in nutrients that could be reinvested into female reproduction. The aim of this thesis was to evaluate how male larval nutrition o…
De l'égalité formelle aux usages réels : déterminants et effets du suivi des MOOC dans les trajectoires socio-professionnelles
2018
Education and vocational training are central institutions in today’s society. They play an important role in guaranteeing people’s social and professional integration. They are also considered strategic pillars of economic growth in “the knowledge society” (CE, 2000). However, despite their basis in democratic values and principles, there are still many inequalities in access and outcomes in both compulsory academic and vocational education. Moreover, because of the increasing flexibility and insecurity of work in the current labor market, a diploma is a necessary, but not sufficient, condition for stable employment. In this context, the rise of Massive Open Online Courses (MOOC) raises qu…
L'influence des facteurs institutionnels sur la politique d'information financière des entreprises. Une analyse à la lumière du cas français
2009
International audience; L'influence des facteurs institutionnels sur la politique d'information financière des entreprises. Une analyse à la lumière du cas français.
Etude des interactions plantes-microbes et microbes-microbes au sein de la rhizosphère, sous un aspect coûts-bénéfices, dans un contexte de variation…
2013
Understanding the interactions that bind plants and soil microorganisms is an essential step for the sustainable management of ecosystems, especially in agriculture. The ecosystem services resulting from such interactions include plant productivity which responds, in part, to the food requirements of the world's population and the regulation of biogeochemical cycles. These ecosystem services depend on trophic links between the two partners in the interaction and can be represented by a tradeoff between the costs and benefits for each partner. Plants, being autotrophic organisms or primary producers, are key organisms which introduce carbon into the ecosystem, through photosynthesis. Part of…
French collective expertise on herbicide-tolerant varieties
2013
The primary objective in creating herbicide-tolerant varieties is to offer the farmers with an efficient tool to ensure weed control and solve weed problems, but their use could eventually have expected or unexpected consequences according to conditions of implementation. A few of those varieties, obtained either through classical breeding or through induced mutagenesis are now on the European market (especially oilseed rape and sunflower) while a majority, which was obtained through genetic engineering, is not allowed for cultivation in this area. The report describes how CNRS and INRA experts dealt with the scientific literature, extracts key elements, points out necessary watchfulness on…
GOUVERNANCE D'ENTREPRISE ET POUVOIR INFORMATIONNEL DES BENEFICES COMPTABLES EN FRANCE ET AUX Etats-Unis
2007
International audience; La gouvernance d'entreprise a connu de très grandes évolutions en France et aux Etats-Unis depuis 2001. Ces évolutions n'ont pas conduit à une convergence linéaire entre les deux systèmes de gouvernance, mais à des emprunts réciproques en matière de réglementation et de mécanismes de contrôle implantés par les sociétés. Ces particularités en matière de gouvernance et de comportement des investisseurs financiers conduisent à un effet différent des mécanismes de contrôle sur le pouvoir informationnel des bénéfices comptables pour les investisseurs financiers. Les résultats indiquent que pour le contexte américain, la concentration de la propriété améliore le pouvoir in…