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Search Results: 1 - 10 of 62 matches for " Verges "
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Réaction à l'article de J.-M. Ramos
Verges, Pierre
Papers on Social Representations , 1994,
Abstract:
Noyau central, saillance et propriétés structurales
Verges, Pierre,Tyszka, Tadeusz,Verges, Pierrette
Papers on Social Representations , 1994,
Abstract:
Comparaison de méthode: A propos de l'article 'Apport des modèles graphiques gaussiens en analyse de similitude'
Verges, Pierre,Flament, C.
Papers on Social Representations , 1997,
Abstract:
Moorings: Indian Ocean Creolizations
Francoise Verges,Carpanin Marimoutou
PORTAL : Journal of Multidisciplinary International Studies , 2012,
Abstract: In this essay written in 2004, Fran oise Vergès and Carpanin Marimoutou explore the ways in which processes and practices of creolization occurred in Réunion Island. They argue that creolization must be analyzed within the historical, political and cultural context in which they emerge. Vergès and Marimoutou reflect on these processes -- frictions, conflicts, and exchanges among slaves, settlers, migrants, and indentured workers from Madagascar, Mozambique, Gujarat, Bengal, France, Tamil Nadu, Southern China, Malaysia, Vietnam..., who were brought or came on the uninhabited island, colonized by the French in the 17th century. The authors also looked at the post-colonial moment, the French policies of assimilation and repression in the 1960s-1970s. For them, vernacular cultural practices and memories of struggle continue to work as counter strategies against local and national reactionary politics. In their conclusion, Vergès and Marimoutou look at the current form of globalization and its consequences on processes of creolization.
From exclusion to self-inclusion of women in ICT. Motivations, enablers and mechanisms of self-inclusion De la exclusión a la autoinclusión de las mujeres en las TIC. Motivaciones, posibilitadores y mecanismos de autoinclusión
Núria Verges Bosch
Athenea Digital , 2012,
Abstract: Research on the participation of women in ICT shows that the gender digital divide persists. Given that, most studies continue to focus on explaining the mechanisms of exclusion of women from ICT. In this article I propose a paradigm shift from exclusion to inclusion. I go beyond inclusion by conceptualizing and analysing the process of self-inclusion of women in ICT from a purposive sample of women artistic and computer technologists. The results are based on the qualitative analysis of interviews and focus groups, in which I aim to answer three main questions: What motivated their self-inclusion? What enablers did they encounter? What mechanisms did they follow and activate to self-include in ICT? The main results show, first, that the motivations for pleasure are predominant, but often complemented by other utilitarian motivations. Second, a set of enablers facilitate women’s self-inclusion in ICT, including gender policies. Finally, I discuss a number of mechanisms of self-inclusion that go beyond learning that include doing and undoing gender. La investigación sobre la participación de las mujeres en las TIC alerta de que la brecha digital de género persiste. Frente a ello, la mayoría de estudios se siguen concentrando en explicar los mecanismos de exclusión de las mujeres de las TIC. En este artículo propongo un giro del paradigma de la exclusión al paradigma de la inclusión para avanzar en esta cuestión. Voy más allá conceptualizando y analizando el proceso de autoinclusión de las mujeres en las TIC a partir de una muestra intencionada de tecnólogas artísticas e informáticas. Los resultados se basan en el análisis cualitativo de entrevistas y grupos de discusión y buscan responder a tres preguntas principales: Qué expresan que las ha motivado a autoincluirse en las TIC? Qué posibilitadores se alan que han ido encontrando? Qué mecanismos exponen que han ido siguiendo y activando para autoincluirse? Como principales resultados muestro, primeramente, que las motivaciones por placer se evidencian como predominantes, pero complementadas por motivaciones más utilitaristas. En segundo lugar, que un conjunto de posibilitadores han facilitado su autoinclusión, entre ellos las mismas políticas de género. Finalmente, expongo una serie de mecanismos de autoinclusión que van más allá del aprendizaje y que incluyen ir haciendo y deshaciendo género.
Wavefunction and level statistics of random two dimensional gauge fields
J. A. Verges
Physics , 1996, DOI: 10.1103/PhysRevB.54.14822
Abstract: Level and wavefunction statistics have been studied for two dimensional clusters of the square lattice in the presence of random magnetic fluxes. Fluxes traversing lattice plaquettes are distributed uniformly between - (1/2) Phi_0 and (1/2) Phi_0 with Phi_0 the flux quantum. All considered statistics start close to the corresponding Wigner-Dyson distribution for small system sizes and monotonically move towards Poisson statistics as the cluster size increases. Scaling is quite rapid for states close to the band edges but really difficult to observe for states well within the band. Localization properties are discussed considering two different scenarios. Experimental measurement of one of the considered statistics --wavefunction statistics seems the most promising one-- could discern between both possibilities. A real version of the previous model, i.e., a system that is invariant under time reversal, has been studied concurrently to get coincidences and differences with the Hermitian model.
Localization length in a random magnetic field
J. A. Verges
Physics , 1997, DOI: 10.1103/PhysRevB.57.870
Abstract: Kubo formula is used to get the d.c conductance of a statistical ensemble of two dimensional clusters of the square lattice in the presence of random magnetic fluxes. Fluxes traversing lattice plaquettes are distributed uniformly between minus one half and plus one half of the flux quantum. The localization length is obtained from the exponential decay of the averaged conductance as a function of the cluster side. Standard results are recovered when this numerical approach is applied to Anderson model of diagonal disorder. The localization length of the complex non-diagonal model of disorder remains well below 10 000 (in units of the lattice constant) in the main part of the band in spite of its exponential increase near the band edges.
Conductance scaling at the band center of wide wires with pure non--diagonal disorder
J. A. Verges
Physics , 2001, DOI: 10.1103/PhysRevB.65.054201
Abstract: Kubo formula is used to get the scaling behavior of the static conductance distribution of wide wires showing pure non-diagonal disorder. Following recent works that point to unusual phenomena in some circumstances, scaling at the band center of wires of odd widths has been numerically investigated. While the conductance mean shows a decrease that is only proportional to the inverse square root of the wire length, the median of the distribution exponentially decreases as a function of the square root of the length. Actually, the whole distribution decays as the inverse square root of the length except close to G=0 where the distribution accumulates the weight lost at larger conductances. It accurately follows the theoretical prediction once the free parameter is correctly fitted. Moreover, when the number of channels equals the wire length but contacts are kept finite, the conductance distribution is still described by the previous model. It is shown that the common origin of this behavior is a simple Gaussian statistics followed by the logarithm of the E=0 wavefunction weight ratio of a system showing chiral symmetry. A finite value of the two-dimensional conductance mean is obtained in the infinite size limit. Both conductance and the wavefunction statistics distributions are given in this limit. This results are consistent with the 'critical' character of the E=0 wavefunction predicted in the literature.
Computational implementation of the Kubo formula for the static conductance: application to two-dimensional quantum dots
J. A. Verges
Physics , 1999, DOI: 10.1016/S0010-4655(99)00206-4
Abstract: Kubo formula is used to get the d.c conductance of a statistical ensemble of two-dimensional clusters of the square lattice in the presence of standard diagonal disorder, a uniform magnetic field and random magnetic fluxes. Working within a one-band tight-binding approach the calculation is quite general. The shape of the cluster is rectangular with ideal leads attached to opposite corners. Both geometrical characteristics and physical parameters can be easily selected. The output is just the conductance of a system of given parameters or a statistical ensemble of conductances measured for different disorder realizations.
CONSIDERA ES A PROPóSITO DO TEMPO NA “CRíTICA DA RAZ O PURA”: UMA LEITURA INTRODUTóRIA SOBRE AS POSSIBILIDADES DE CONHECIMENTO DO FEN MENO TEMPO
Jo?o Vitor Gobis Verges
Colloquium Humanarum , 2010, DOI: 10.5747/ch.2010.v07.n01.h076
Abstract: This article, in general, seeks to clarify the question of time for the Prussian philosopher Immanuel Kant in his "Critique of Pure Reason" perspective that allows the implications of such an approach in its broadest sense. Therefore, the discussion by the author on what is empirical, or what is "a priori", the prism of time, can contribute to the debate on various issues relating to knowledge, society and nature that are set to contemporary science.
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