The authors present the study of the charm-pair correlations produced in photon-nucleon interactions at <E{sub {gamma}}> = 175 GeV/c, by the Fermilab fixed target experiment E831/FOCUS. The E831/FOCUS experiment produced and reconstructed over one million charm particles. This high statistics allows the reconstruction of more than 7000 charm-pair mesons D{bar D}, 10 times the statistic of former experiments, and also allows to get, for the first time, about 600 totally reconstructed charm-pairs in the DD{sub s} and D{Lambda}{sub c} channels. They were able to study, with some detail, the kinematical correlations between the charm and anticharm particle forming a pair, in the square transverse momentum (p{sub T}{sup 2}), azimuthal angle difference ({Delta}{phi}), rapidity difference ({Delta}y) and the charm-pair mass variables. They observe some correlation for the longitudinal momenta, and a significant correlation for the transverse momenta of the charm and anticharm particles. They compare the experimental distributions with theoretical predictions based on the photon-gluon fusion model (PGF), for the production of c{bar c} quarks, and the standard Lund hadronization model. These models are implemented by the PYTHIA Monte Carlo event generator. The PYTHIA program allows the inclusion, in the simulation, of non-perturbative effects that have been shown to be important …

The problem in this study has been to analyze the vocabulary needs in the field of Library Service and to develop a professional tool, including an English-French glossary of approximately fifteen hundred terms concerning the making, the acquisition, and the organization of books as related to Library Service.

The purpose of this thesis is to examine the letters of Diderot to Sophie Volland for the year 1759 as they are a source of important autobiographical, social, and psychological elements that shed light on Diderot's private and public life. In fact a turning point in the sentimental relationship between Diderot and Sophie Volland, the death of his father, the difficulties experienced in publishing the Encyclop6'die and consequently the coolness in his friendship with D'Alembert make 1759 a crucial year in Diderot's life. The conclusion reached is that the stylistically beautiful and modern letters to Sophie Volland of this year are self-revelatory for they show that the events of 1759 made a great psychological impact upon Diderot and started a process of maturity in his character. These letters can undoubtedly be considered a major part of Diderot's work and they can certainly contribute to a deeper understanding of this genius.

The thesis states that women characters in the works of Ramuz have much more depth, life and variety than first meets the eye. In order to demonstrate this, it was decided to show women characters, main, secondary and in groups, and to look at their presentation in the novels recognized generally as the most important.

Many critics consider Mariama Bâ as a feminist writer, but the reader of her two novels might wonder what characterizes her work as such. Therefore, the aim of each chapter, in order of appearance, is to analyze first the genres, then the elements of African tradition and Western modernity, the characters of both works and the themes of the novels, with the intention of defining the author's feminism, which takes its source in dichotomies, paradoxes and contradictions. In order to expose the author's point of view on the condition of women, it appears important to situate the diegesis in its context. Also, the study is supported by references on the Senegalese culture, by genres, narrative and feminist theories and by critiques on the work itself.