Paris West University Nanterre La Défense

About: Paris West University Nanterre La Défense is a education organization based out in Paris, France. It is known for research contribution in the topics: Computer science & Politics. The organization has 895 authors who have published 1430 publications receiving 21712 citations.

Job and educational level of company managers: their relations with job satisfaction

Abstract: In a previously published study, we used a Satisfaction Inventory to measure the job satisfaction of managerial staff (the Inventaire de Satisfaction Applique aux Cadres, ISAC). The method of construction and certain metric qualities of the inventory were explained (Frances, 1983).

A monotonicity law for relative prices

Abstract: It is shown that relative prices of production, which depend on the rate of profit in a complicated manner, satisfy nevertheless a simple monotonicity law when the Hilbert's projective metric is used as a measure.

Bi-functional meta-device with full energy utilization in co- and cross-polarization fields

Abstract: In high contrast to traditional geometric meta-surfaces, which can only operate on the cross-polarized field, we propose a bi-functional meta-device with full energy utilization in both co- and cross-polarized fields. In this paper, co-polarized refraction and cross-polarized focusing are integrated in one single meta-surface by taking advantage of compound propagation and geometric phases. A multi-layer element structure with various geometric degrees of freedom is designed to realize simultaneous and independent phase modulation of both co- and cross-polarized transmitted waves. The derived criterion is verified in the microwave region, and the proof-of-concept experiments indicate that the proposed meta-surface can have distinct functionalities with orthogonal polarizations in the transmitted field with a specific circularly polarized illumination. This scheme for bi-functional meta-surface construction provides an effective method to manipulate both co- and cross-polarized output fields simultaneously, which can extremely enhance the modulation efficiency of output energy. Different output wavefronts can be conveniently switched by filtering only the polarization state of the output end, simplifying the operational complexity of the bi-functional meta-system. This criterion paves the way for flexible manipulation of electromagnetic waves with a higher degree of freedom and facilitates a larger diversity of applications across the whole frequency spectrum.

Éléments de validité des dimensions primaires de l'adaptation française de l'inventaire 16PF5.

Abstract: Nous presentons ici des elements de validite de construct (structure factorielle) et de consistance interne (alpha de Cronbach) des 16 dimensions primaires de l'adaptation francaise de cet inventaire. La validite de la structure interne a ete testee au niveau des items par la methode confirmatoire controide de groupe (Multiple Group Method) sur un echantillon de 1000 sujets. La stabilite de la structure factorielle a ete testee en comparant les structures factorielles extraites a partir de deux sous echantillons issus de l'echantillon total (2 x N - 500). Les resultats obtenus confirment la convergence structure observee/structure hypothetique (decrite par R.B. Cattell), de plus la stabilite de cette structure factorielle est bonne. La consistance interne a ete testee au moyen du coefficient alpha de Cronbach. Dans une perspective exploratoire ou d'evaluation de groupes (alphas superieurs a 0.60), la consistance est satisfaisante pour quatorze echelles sur quinze. Une analyse complementaire montre que la methode confirmatoire utilisee conjointement avec un indicateur de consistance interne ne presente pas les defauts classiquement reproches aux methodes procrusteennes.