$^{176}$Lu isotope properties as a cosmothermometer
Résumé
The exploitation of the Web for reasoning tasks represents à challenge for un great number of users.Their activity is shaped by technical difficulties and by the necessity to control a lot of types of documents.Thus, in this kind of undefined navigation space what we call « reading » becames a quiet complexe activity to describe. It is one of the most important conclusion of a study of two years.