Decay from superdeformed yrast states to normal deformed states in $^{193}$Tl
Résumé
Information and Communication Technologies change the way people consider information and knowledge. Their use in e-learning raises orientation problems while navigating within technological devices. First of all, the learner-subject must locate the tools and services at his disposal during all of the training. To help orientation, resorting to the spatial metaphor is frequent. This research is based on results of some empirical survey. It is the opportunity of questioning oneself as to the limits of this type of metaphor by studying mental representations that users may have. Solutions could be brought by making spatial metaphor intervene more as a tool of information processing than as a tool of software localization.