The presented master thesis deals with the perception of the speed vehicle crew (not the drivers) in traffic in terms of different aspects, that influencing the feeling while driving in the vehicle. This is primarily about the approximation of factors that may have an impact on the speed. The aim of the thesis is to propose an appropriate methodology of measurement and subsequent evaluation of acquired date, which leads to an improvement in the idea of whether witnesses of traffic accidents are indicative of the speed of the vehicles, at reasonable real speed.

The project New Faces is a series of portraits dealing with the theme of identity and its loss, human individuality and the phenomenon of ideal of beauty. Each of paintings depict different views on the same face, base on personal confessions of portrayed and his friends. Thus we can observe confrontation of the "subjective" and the "objective", where this supposed "objectivity" acquire the relative value in the context of other pictures. The project points to the problem of self-perception and it explores how human perception distorts the reality, especially if more factors (than just a visual image of reality) affects the person.

L’incertitude au travail peut provenir de l’ambiguïté de rôle, de la variation des conditions de travail, des doutes que le travailleur peut avoir à propos de la pertinence de ses activités, etc. La contribution majeure de cette thèse a été de développer et valider un questionnaire permettant d’évaluer la perception de l’incertitude au travail comme renvoyant pour l’individu à des aspects usants (gêne, difficulté à prendre position, anxiété), mais également constructifs (stimulant les perspectives de changement, les opportunités d’apprentissage et de développement personnel), ainsi qu’à des stratégies permettant de gérer l’incertitude par le contrôle, l’évitement, ou la recherche d’une réassurance auprès d’autrui. Une série d’entretiens a également permis de relever d’autres stratégies propres à la vision constructive de l’incertitude permettant aux travailleurs de la gérer d’une façon proactive./Uncertainty at work may originate from role ambiguity, variations in the work conditions, unforeseen and unexpected events, or even from doubts that the worker may have about the relevance of his/her own activities. The major contribution of this thesis was to develop and validate the Uncertainty at Work Questionnaire (UnWoQ) which highlights how employees perceive uncertainty either in a damaging or in a constructive way, and how they tend to cope with it using strategies of control, avoidance and reassurance. We finally suggested some other strategies in relation with the constructive sides of uncertainty that help employees to cope with it in a proactive way. / Doctorat en Sciences Psychologiques et de l'éducation / info:eu-repo/semantics/nonPublished