La gestion sociétalement responsable est-elle en cours d’intégration dans les Scop ?

International audienc

Les Scop et l’intégration des dimensions de la performance : étude du cas MATELOC

Cette recherche a pour objet d’approfondir le concept de performance globale, dans le contexte des SCOP, afin de mettre en évidence le caractère spécifique ou non de la notion de performance pour une structure coopérative. Dans cette optique, il s’agira d’observer et d’identifier les pratiques et outils de gestion - spécifiques ou non - dédiés à ce type particulier d’entreprises du champ de l’Economie Sociale et Solidaire, par l’intermédiaire de la méthode des cas. En l’occurrence, la société coopérative MATELOC, prestataire de service pour les entreprises du Bâtiment, des Travaux Publics et de l\u27Industrie - domaine d’activité statistiquement prépondérant pour les SCOP - servira de socle à notre étude. Au travers de ce cas exemplaire, nous montrons que la performance globale n’est pas totalement intégrée puisque les dimensions économique et sociale sont pilotées ensemble, mais la dimension environnementale vient ponctuellement en complément

Les comportements en matière de RSE des sociétés coopératives : homogénéité discursive et hétérogénéité des pratiques

CSR behaviors of cooperative companies: a discursive homogeneity and heterogeneity of practicesThis research aims to improve knowledge on CSR and the CSR behaviors, specifically in cooperative enterprises (Scop, in French). By studying five Scop, the research shows a relative discourse homogeneity in terms of CSR but heterogeneous practices. Thus, the results lead us to identify the main characteristics of CSR behaviors for a Scop and suggest the importance of management support al along the process and the membership in the cooperatives enterprises network as positives factors that aim the CSR commitment

Fourier analysis of wave turbulence in a thin elastic plate

The spatio-temporal dynamics of the deformation of a vibrated plate is measured by a high speed Fourier transform profilometry technique. The space-time Fourier spectrum is analyzed. It displays a behavior consistent with the premises of the Weak Turbulence theory. A isotropic continuous spectrum of waves is excited with a non linear dispersion relation slightly shifted from the linear dispersion relation. The spectral width of the dispersion relation is also measured. The non linearity of this system is weak as expected from the theory. Finite size effects are discussed. Despite a qualitative agreement with the theory, a quantitative mismatch is observed which origin may be due to the dissipation that ultimately absorbs the energy flux of the Kolmogorov-Zakharov casade.Comment: accepted for publication in European Physical Journal B see http://www.epj.or

Automatic eduction and statistical analysis of coherent structures in the wall region of a confine plane

This paper describes a vortex detection algorithm used to expose and statistically characterize the coherent flow patterns observable in the velocity vector fields measured by Particle Image Velocimetry (PIV) in the impingement region of air curtains. The philosophy and the architecture of this algorithm are presented. Its strengths and weaknesses are discussed. The results of a parametrical analysis performed to assess the variability of the response of our algorithm to the 3 user-specified parameters in our eduction scheme are reviewed. The technique is illustrated in the case of a plane turbulent impinging twin-jet with an opening ratio of 10. The corresponding jet Reynolds number, based on the initial mean flow velocity U0 and the jet width e, is 14000. The results of a statistical analysis of the size, shape, spatial distribution and energetic content of the coherent eddy structures detected in the impingement region of this test flow are provided. Although many questions remain open, new insights into the way these structures might form, organize and evolve are given. Relevant results provide an original picture of the plane turbulent impinging jet