S’auto évaluer pour agir : rôle du sentiment d’efficacité personnelle dans les pratiques d’enseignement

Dans son quotidien, l’enseignant est amené à prendre des décisions, évaluer les éléments favorables du contexte, mobiliser des ressources afin d’organiser l’activité pédagogique. L’ensemble de ces choix tactiques ou stratégiques est sous-tendu par un processus d’auto-évaluation de son action que nous avons souhaité analyser. Au sein du collège les enseignants vivent en direct la nécessaire adaptation de leur projet pédagogique à la spécificité des élèves et à la différenciation de leurs actes. Ces enseignants, entre deux rives, ont au quotidien à la fois, à conduire leur activité, à auto évaluer celle-ci et à construire des pratiques efficaces. Notre recherche nous permet de décrire et d’expliquer le rôle des processus internes d’auto-évaluation des actions professionnelles. Ces procédures sont en interaction avec la construction chez l’enseignant d’un sentiment d’auto-efficacité qui, au-delà de renforcer l’estime de soi, est un véritable moteur de la valorisation et de la production des actes d’enseignement.<br>In their day to day work, teachers are required to make decisions, evaluate the positive elements in their environment and mobilize resources in order to organize their pedagogical activity. All of these tactical or strategic choices are underlain by a self-evaluation process of their action that we have chosen to analyze. In junior high school, teachers get to see how it is necessary to adapt their pedagogical projects to students’ specificity and to differentiated acts. Daily, these teachers have, at the same time, to conduct their activity, to self-evaluate it and to conceive efficient practices. This study enables us to better describe and explain the role of internal self-assessment processes of professional actions. These self-evaluation processes interact with the building of a sense of efficiency that, beyond strengthening teachers’ self-esteem, is a true engine of development and production of acts of education

Quantum dynamics and statistics of two coupled down-conversion processes

In the framework of Heisenberg-Langevin theory the dynamical and statistical effects arising from the linear interaction of two nondegenerate down-conversion processes are investigated. Using the strong-pumping approximation the analytical solution of equations of motion is calculated. The phenomena reminiscent of Zeno and anti-Zeno effects are examined. The possibility of phase-controlled and mismatch-controlled switching is illustrated.Comment: 17 pages, 7 figure

Quantum phenomena in single and coupled optical parametric processes.

Available from STL Prague, CZ / NTK - National Technical LibrarySIGLECZCzech Republi

Improving continuous-variable entanglement distribution by separable states

We investigate the physical mechanism behind the counterintuitive phenomenon, the distribution of continuous-variable entanglement between two distant modes by sending a third separable auxiliary mode between them. For this purpose, we propose a more simple and more efficient protocol resulting in distributed entanglement with more than an order of the magnitude higher logarithmic negativity than in the previously proposed protocol. This protocol shows that the distributed entanglement originates from the entanglement of one mode and the auxiliary mode used for distribution, which is first destroyed by local correlated noises and restored subsequently by the interference of the auxiliary mode with the second distant separable correlated mode.</p