Search results for "effet"
showing 10 items of 524 documents
L'enseignement des langues vivantes à l'école élémentaire : essai d'évaluation des effets au collège
1997
A survey was carried out during two years with 1500 pupils at the beginning of the secondary school. It consists to assess the results of the pupils in English language : some of them were initiated to English in the Primary school. The results of the research allow to describe some factors which influence pupil's acquisitions in English language and to assess the effects of the "early" initiation : in fact, these seem to be very slight.
Mesurer l'effet du travail salarié sur la réussite : une analyse statistique sur les étudiants d'une université française
2018
L’emploi étudiant est généralement considéré comme un frein à la réussite scolaire et universitaire. Nos travaux portant sur une enquête réalisée dans une université française en 2012 visent à mesurer les effets des caractéristiques de l’emploi et, notamment, de son intensité. À partir d’une modélisation statistique prenant en compte la probabilité d’accès au travail salarié, nous montrons un effet négatif de l’emploi salarié pour les étudiants qui travaillent plus de 8 heures par semaine. Le type d’emploi exercé a également un effet sur les chances de réussite : les jeunes ayant un emploi dans le secteur public et ceux qui ont la possibilité d’aménager leur emploi du temps paraissent moins…
Grade repetition at primary school level "CP"
2005
This research on the grade retention to the CP erects a detailed inventory of the knowledge on this question which gives rise to the more of animated discussions between the researchers and the teachers, and this since a long time. By allying the historic, comparative, economical and educational approaches, she conveys principal empirical results attached to the many facets of this measure that is more than an educational done. The empirical contribution of this study is based on a longitudinal followed during two years about more than three thousand students on CP in public schools of the French department of the Côte d'Or. We highlight that the grade retention are received favourably by t…
How Do French Junior Secondary Schools Operate ? Academic Achievement, Grading and Streaming of Students
1989
International audience; This paper is concerned with the operation of Junior Secondary Schools in France. Students' school careers have been analysed in three sequential and cumulative components: student progress in learning in the junior secondary school, student grading by teachers, and student streaming, i.e., admission, or not, into a general form 3. For each of the three mechanisms described above, the authors examine whether they are influenced by the schooling context, which schooling context (school and/or classroom), and which characteristics of those contexts it is relevant to consider. Finally, they focus on the process by which the large social inequalities visible after the pu…
Social Inequalities in French Secondary Schools : From Figures to Theories
1996
In spite of the unified type of junior secondary school (the "college") implemented in France since 1975, significant social inequalities of school careers can be observed today. A specific longitudinal study sheds some light on the variety of mechanisms which generate these social inequalities. Difference in academic progress is one mechanism, but parents' strategies are also important. Finally, another aspect of social inequality arises from the school attended, some schools being more selective at the streaming points, these "school effects' being related to the social characteristics of the pupils of the catchment area. All these facts and figures have some relevance with regard to diff…
Les études longues protègent-elles du sous-emploi ? Le cas de l'Union Européenne
1998
Articles en grec et en français, résumés en français seulement; International audience
Rovibrational spectroscopy of ethylene : Stark effect : Application to ethylene in zeolites
2010
The objective of this report is to present a study as complete as possible of the Stark effect in the asymmetric top molecules of X2Y4 type possessing the D2h symmetry group and to apply it to the problem of the spectroscopy of the ethylene molecule trapped in a zeolite. For the first time, a tensorial formalism adapted to the study of the Stark effect for the O(3) D2h group chain was developed. In parallel, a computer package was worked out as a new generation of software called D2hTDS-ST using a simpler basis, allowing an economy in the calculation time. On the basis of the theoretical and computing tools as well as from the experimental spectra, recorded in the laboratory, we made a firs…
ROVIBRATIONAL AND STARK SPECTROSCOPY OF THE X2Y4MOLECULES. APPLICATION TO ETHYLENE
2005
This thesis is devoted to the spectroscopy of ethylene in the aim of studying the molecule trapped in zeolites. The first part deals with the tensorial model adapted to the symmetry of the isolated molecule: formalism, Hamiltonian and transition moments. To take the strong electric fields existing into zeolites into account, an extension of the model to the Stark effect is proposed in the second part. The third part describes the programs of the D2hTDS software which have been built for the calculation and analysis of X2Y4-type molecule spectra. The fourth part presents applications to the calculation and analysis of zero-field and Stark ethylene spectra. In particular, the model has been t…
Habilitation Thesis
2004
This habilitation thesis presents a synthesis of my research activities during the last eight years. I have distinguished, one the one hand, researches concerning rovibrational spectroscopy in a singlet electronic state (Part III) and, on the other hand, those concerning rovibronic spectroscopy in a degenerate electronic state (Part IV).