Réflexions sur l'énoncé en situation

Réflexions sur la question fréquentielle en traitement du signal

New definitions are suggested for frequencies which may be instantaneous or not. The Heisenberg-Gabor inequality and the Shannon sampling theorem are briefly discussed.

Sur la frequence de leptospirose en Iran

Sur la fréquence de leptospirose en Iran

Sur la fréquence de la leptospirose en Iran

Usages prescrits ou annoncés, usages observés. Réflexions sur les usages scolaires du numérique par les enseignants

The use of ICT for Education is an extremely complex issue that can and should be analyzed from different perspectives. This article does not intend to cover all of them but, instead, try to address only some of them by developing a high level view showing the contradictions that characterize different official statements and stressing some educational paradoxes. The article describes the Frenc...