Théorie psychologique et sociologie implicite*

Théorie De Jauge Et Groupo¨ıdes

Les résultats de cet article concernent leprobì eme de l'existence de représentations d'un groupo¨ıde topologique sur un fibré principal et leur classificationà transformation de jauge près. De telles représentations interviennent naturellement dans divers contextes (théo-ries de jauge classiques ou sur graphe, fibréséquivariants, etc).

L’Année psychologique

Near-Infrared Spectroscopy (NIRS) is an optical imaging technique that measures brain activity by monitoring cortical oxygenation changes. It is portable, non-invasive and has good motion tolerance. In the last thirty years, these features have led NIRS to be used in a wide range of applications. This brief review considers the advantages of NIRS and its potential use in psychological research ...

Partage de secret et théorie algorithmique de l’information

Secret sharing deals with splitting a secret data between several participants. The participants are organized within an access structure consisting of groups that may gain access to the secret. The goal is to provide each participant with a piece of information such that the following two requirements are met: 1. Recoverability: a qualified group can recover the secret, 2. Privacy: any other g...

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Assuming that people care not only about what others do but also on what others think, we study respect as a non-monetary source of motivation in a context where the length of the employment relationship is endogenous. In our three-stage gift-exchange experiment, the employer can express respect by giving the employee costly symbolic rewards after observing his level of effort. This experiment ...

Théorie du contrôle optimal et calcul des variations