Search results for "determinant"
showing 10 items of 377 documents
Pathways to higher education in France and Switzerland: Do vocational tracks facilitate access to higher education for immigrant students?
2014
In this chapter we wish to clarify through which institutional pathways higher education is accessed by immigrant group students in Switzerland and France. We have chosen these two countries because they differ from each other both in their educational systems and in the ways new routes to higher education have been set up through vocationally orientated programmes. The educational landscape in France is characterised by a more school-based system and has a greater tradition of prestigious tertiary education institutions (Duru-Bellat et al., 2008). Moreover, traditional vocational education and training (VET) does not have very high status and therefore fails to attract a large proportion o…
Student's achievement in french at junior high school
2012
Communication affichée - Résumé reproduit in International Journal of Psychology, 47, supplement 1, p. 20.; This research aims at studying, by means of a theoretical model, the role of certain personal features (gender, age, socioeconomic background, academic record) and some dynamical mechanisms of personality in predicting the students' achievement in French at junior high school. The dynamical mechanisms, relating to the affective entry characteristics (Bloom, 1979), were represented by five attitudes towards school: Negative feelings, Lack of scholastic interest, Aspirations for future studies, "Scholastic anxiety, worry and stress" and "Nice school, distraction place" (Bennacer, 2003).…
Isotropic p-harmonic systems in 2D Jacobian estimates and univalent solutions
2016
The core result of this paper is an inequality (rather tricky) for the Jacobian determinant of solutions of nonlinear elliptic systems in the plane. The model case is the isotropic (rotationally invariant) p-harmonic system ...
Enjoyment in the Foreign Language Classroom: Does Gender Matter? A Review of Selected Empirical Studies
2021
The present contribution offers an overview of a new research avenue in the field of second language acquisition (SLA) which began to flourish with the advent of Positive Psychology (PP). The study presents the findings of selected empirical studies on foreign language enjoyment (FLE) conducted in various countries, among foreign language (FL) learners at different ages, and at different proficiency levels. As there is a relatively small body of literature that directly concerns gender differences in FLE, the main aim of the present study is to fill the existing research gap in the field. One of the most significant findings to emerge from this study is that the relationship between FLE and…
Safety Climates in Construction Industry: Understanding the Role of Construction Sites and Workgroups
2013
Studies of safety climate in construction revealed a significant positive association between safety climate and various aspects of occupational health and safety. The mechanisms through which this impact operates are still unclear and safety climate is usually studied without considering the complexity of this industry (companies, worksites and groups). The aim of this research is to analyze to what extend there are differences between construction sites and to explore the relations between construction sites’ safety climate and workers’ safety response and to examine how this influence occur considering the workgroups. The safety climate was evaluated using a reduced version of the questi…
Greenfield FDI attractiveness index: a machine learning approach
2022
Purpose This study aims to propose a comprehensive greenfield foreign direct investment (FDI) attractiveness index using exploratory factor analysis and automated machine learning (AML). We offer offer a robust empirical measurement of location-choice factors identified in the FDI literature through a novel method and provide a tool for assessing the countries' investment potential. Design/methodology/approach Based on five conceptual key sub-domains of FDI, We collected quantitative indicators in several databases with annual data ranging from 2006 to 2019. This study first run a factor analysis to identify the most important features. It then uses AML to assess the relative importance of…
CLEAR: Covariant LEAst-Square Refitting with Applications to Image Restoration
2017
International audience; In this paper, we propose a new framework to remove parts of the systematic errors affecting popular restoration algorithms, with a special focus for image processing tasks. Generalizing ideas that emerged for $\ell_1$ regularization, we develop an approach re-fitting the results of standard methods towards the input data. Total variation regularizations and non-local means are special cases of interest. We identify important covariant information that should be preserved by the re-fitting method, and emphasize the importance of preserving the Jacobian (w.r.t. the observed signal) of the original estimator. Then, we provide an approach that has a ``twicing'' flavor a…
PRINCIPAL POLYNOMIAL ANALYSIS
2014
© 2014 World Scientific Publishing Company. This paper presents a new framework for manifold learning based on a sequence of principal polynomials that capture the possibly nonlinear nature of the data. The proposed Principal Polynomial Analysis (PPA) generalizes PCA by modeling the directions of maximal variance by means of curves instead of straight lines. Contrarily to previous approaches PPA reduces to performing simple univariate regressions which makes it computationally feasible and robust. Moreover PPA shows a number of interesting analytical properties. First PPA is a volume preserving map which in turn guarantees the existence of the inverse. Second such an inverse can be obtained…
The Impact of Fiscal Consolidation on Human Development
2018
We find that fiscal austerity is associated with a reduction of human development standards, with the negative effect being particularly severe in the case of spending-driven consolidation episodes. Fiscal adjustments are especially damaging for human development in developing countries (namely, African and Latin American countries). Additionally, the empirical evidence shows that (i) government stability is a crucial institutional determinant of human development, and (ii) while investment in physical capital can boost human development, government consumption and inflation are detrimental to it.
Some Improvements on Relativistic Positioning Systems
2018
[EN] We make some considerations about Relativistic Positioning Systems (RPS). Four satellites are needed to position a user. First of all we define the main concepts. Errors should be taken into account. Errors depend on the Jacobian transformation matrix. Its Jacobian is proportional to the tetrahedron volume whose vertexes are the four tips of the receiver-satellite unit vectors. If the four satellites are seen by the user on a circumference in the sky, then, the Jacobian and the tetrahedron volume vanish. The users we consider are spacecraft. Spacecraft to be positioned cannot be close to a null Jacobian satellites-user configuration. These regions have to be avoided choosing an appropr…