This article relies on twelve texts published in "Distances et Savoirs." It asserts three "figures of thought" crossing our scientific disciplines: the substance, the relation, and the movement. The confrontation of these figures and these texts suggests how much "Distances et Savoirs" invites to a pluralistic…

This article describes and analyzes actors' experiences of distance learning systems in a wide variety of cultural and organizational contexts. In line with the project of this special series of issues, results of research, much of which is longitudinal, allow us to suggest answers to the following questions: Who are the actors of distance…

Learning embryology remains difficult, since it requires understanding of many complex phenomena. The temporal evolution of developmental events has classically been illustrated using cartoons, which create difficulty in linking spatial and temporal aspects, such correlation being the keystone of descriptive embryology. We synthesized the…