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Journals and Conferences
The paper is the second part of a survey report about the social implications of epilepsy in Senegal. The study has been conducted by a team of four (2 nurses, 1 social worker and a resident of psychiatric hospital), visiting patients in remote countryside. At the occasion of these visits, enquiries were made among patients and their families, elders,… (More)
We describe a canonical covariant approach to the quantization of the Green-Schwarz superstring. The approach is first applied to the canonical covariant quantization of the Brink and Schwarz superparticle. The Kallosh action is obtained in this case, with the correct BRST cohomology.
We present the complete set of N = 1, D = 4 quantum algebras associated to massive superparticles. We obtain the explicit solution of these algebras realized in terms of unconstrained operators acting on the Hilbert space of superfields. These solutions are expressed in terms of the chiral, anti-chiral and tensorial projectors which define the three… (More)
Topologically non trivial effects appearing in the discussion of duality transformations in higher genus manifolds are discussed in a simple example , and their relation with the properties of Topological Field Theories is established.
We describe the quantum and classical radiation by a uniformly accelerating point source in terms of the elementary processes of absorption and emission of Rindler scalar photons of the Fulling-Davies-Unruh bath observed by a co-accelerating observer.To this end we compute the emission rate by a DeWitt detector of a Minkowski scalar particle with defined… (More)
We consider the action of the D = 11 supermembrane wrapping a compactified sector of the target space in such a way that a non trivial central charge in the SUSY algebra is induced. We show that the dynamics of the center of mass corresponds to a superparticle in D = 9 with additional fermionic terms associated to the central charges. We perform the… (More)
We study the interaction of non-Abelian topological BF theories defined on two dimensional manifolds with point sources carrying non-Abelian charges. We identify the most general solution for the field equations on simply and multiply connected two-manifolds. Taking the particular choice of the so-called extended Poincaré group as the gauge group we discuss… (More)
A recently introduced approach for the dynamical analysis and quantization of field theoretical models with second class constraints is ilustrated applied to linearized gravity in 3-D. The canonical structure of two different models of linerized gravity in 3-D, the intermediate and the self dual models, is discussed in detail. It is shown that the first… (More)
This study emphasizes the role of the socio-cultural status and consequently of psychologic factors in sexual impotence of the black African in Senegal: --role of age, related to the perception of a dual status; --role of the ethnic group giving or not preeminence to sex; --rank in the brotherhood which may raise a conflict with ancestor; --matrimonial… (More)
In this paper we extend the bosonic D-brane action in D = 10 obtained by duality from the D = 11 membrane wrapped on S 1 to an SU (2) non abelian system. This system presents only first class constraints, whose algebra closes off-shell and generalizes the algebra of diffeomorphisms of the D2-brane to include non abelian symmetry generators. From the SU (2)… (More)