Ambulatory Monitoring of Teachers' Voice Use

in AQL Proceedings (2013, June)

Le vote à distance des migrants mexicains : quel impact pour la diaspora dans le champ politique du pays d'origine?

in Politique Américaine (2013), 21

Dans cet article, je propose d’envisager en trois étapes les conséquences du droit de vote de la diaspora mexicaine au-delà de la réalité numérique limitée des deux dernières élections présidentielles ... [more ▼]

Dans cet article, je propose d’envisager en trois étapes les conséquences du droit de vote de la diaspora mexicaine au-delà de la réalité numérique limitée des deux dernières élections présidentielles. D’abord, j’aborde l’évolution du débat sur le droit de vote à distance sur la scène politique mexicaine et mets en lumière les craintes de la classe politique mexicaine à l’égard du poids politique de sa diaspora (particulièrement durant le régime du PRI avant 2000). Je montre également comment le processus de transition démocratique entamé à la fin du 20ème siècle in- fluence les relations entre État et diaspora et ouvre la voie à la réforme sur le droit de vote à distance. Ensuite, après avoir brièvement présenté les principales données concernant la participation politique de la diaspora en 2006 et 2012, j’examine deux hypothèses pouvant expliquer la faible mobilisation des Mexicains de l’étranger. D’une part, la législation sur le droit de vote à l’extérieur et sa mise en œuvre par les autorités électorales sont des barrières installées délibérément afin de limiter l’impact électoral d’une population sur laquelle les partis politiques ont peu de contrôle. D’autre part, j’émets l’hypothèse, grâce à différentes enquêtes d’opinion et à l’analyse du rôle des associations de migrants dans le processus d’enregistrement des électeurs, que l’intérêt à participer aux élections mexicaines n’est partagé que par une partie de la communauté émigrée. Cet article se termine par une discussion sur les évolutions du régime mexicain de vote à l’extérieur aux niveaux fédéral et régional. Ce faisant, je conclus que le droit de vote attribué à la diaspora mexicaine remplit une fonction principalement symbolique pour les autorités mexicaines en donnant l’illusion aux émigrés mexicains qu’ils continuent à faire partie de la communauté politique malgré leur absence du territoire national. [less ▲]

Principes du traitement pharmacologique de l'addiction

in Revue Médicale de Liège (2013), 68(5-6), 245-251

A micro-model of the intra-laminar fracture in fiber-reinforced composites based on a discontinuous Galerkin/extrinsic cohesive law method

Conference (2013, June)

The hybrid discontinuous Galerkin (DG)/extrinsic cohesive law (ECL) method was recently proposed [1] to circumvent the drawbacks of the cohesive element methods. With the DG/ECL method, prior to fracture ... [more ▼]

The hybrid discontinuous Galerkin (DG)/extrinsic cohesive law (ECL) method was recently proposed [1] to circumvent the drawbacks of the cohesive element methods. With the DG/ECL method, prior to fracture, the flux and stabilization terms arising from the DG formulation at interelement boundaries are enforced via interface elements in a way that guarantees consistency and stability, contrarily to traditional extrinsic cohesive zone methods. At the onset of fracture, the traction–separation law (TSL) governing the fracture process becomes operative without the need to modify the mesh topology since the cohesive elements required to integrate the TSL are already present. This DG/ECL method has been shown to be an efficient numerical framework that can easily be implement in parallel with excellent scalability properties to model fragmentation, dynamic crack propagation in brittle and small-scale yielding materials, both for 3D problems and for thin structures [1, 2]. In this work, following the developments in [3], the DG/ECL method is extended to the study of composite materials failures at the micro-scale. The method is applied to study the transverse traction of composite materials in characteristic micro-volumes of different sizes. The method captures the debonding process, assimilated to a damaging process before the strain softening onset. It is shown that the density of dissipated energy resulting from the damage (debonding) remains the same for the different studied cell sizes. During the strain softening phase, a micro-crack initiates and propagates, in agreement with experimental observations. After strain softening onset, the extracted macroscale cohesive law, obtained by the method proposed in [4], is ultimately shown to converge for the different cell sizes. The predicted behaviors are then compared to experimental results obtained from laminate tests, and are found to be in good agreement. [less ▲]

An incremental-secant mean-field homogenization scheme for elasto-plastic and damage-enhanced elasto-plastic composite materials

Conference (2013, June)

This paper presents an incremental secant mean-field homogenization process for composite materials made of elasto–plastic constituents, which can exhibit damage. In this formulation, the residual stress ... [more ▼]

This paper presents an incremental secant mean-field homogenization process for composite materials made of elasto–plastic constituents, which can exhibit damage. In this formulation, the residual stress and strain states reached in the phases upon a fictitious elastic unloading, are considered as starting point to apply the secant method. The mean stress fields in the phases are then computed using isotropic secant tensors, which are naturally used to define the Linear Comparison–Composite. The method, remains simple in its formulation, is applied on various problems involving elastic, elasto–plastic and perfectly–plastic phases, to demonstrate its accuracy compared to other existing MFH methods. The method is particularly attractive when the damaging process is accounted for in the matrix phase. Indeed, during the damaging process of one phase, the secant method can account for the resulting unloading of the other phase, ensuring an accurate prediction of the scheme, when compared to direct numerical simulations. [less ▲]

Intact procedural motor sequence learning in developmental coordination disorder

in Research in Developmental Disabilities (2013), 34(6), 1974-1981

The purpose of the present study was to explore the possibility of a procedural learning deficit among children with developmental coordination disorder (DCD). We tested 34 children aged 6–12 years with ... [more ▼]

The purpose of the present study was to explore the possibility of a procedural learning deficit among children with developmental coordination disorder (DCD). We tested 34 children aged 6–12 years with and without DCD using the serial reaction time task, in which the standard keyboard was replaced by a touch screen in order to minimize the impact of perceptuomotor coordination difficulties that characterize this disorder. The results showed that children with DCD succeed as well as control children at the procedural sequence learning task. These findings challenge the hypothesis that a procedural learning impairment underlies the difficulties of DCD children in acquiring and automatizing daily activities. We suggest that the previously reported impairment of children with DCD on the serial reaction time task is not due to a sequence learning deficit per se, but rather due to methodological factors such as the response mode used in these studies. [less ▲]

An integration of external information for foreign stallions into the Belgian genetic evaluation for jumping horses

in Journal of Animal Breeding & Genetics (2013), 130(3), 209-217

The aim of this study was to test the integration of external information, i.e. foreign estimated breeding values (EBV) and the associated reliabilities (REL), for stallions into the Belgian genetic ... [more ▼]

The aim of this study was to test the integration of external information, i.e. foreign estimated breeding values (EBV) and the associated reliabilities (REL), for stallions into the Belgian genetic evaluation for jumping horses. The Belgian model is a bivariate repeatability Best Linear Unbiased Prediction animal model only based on Belgian performances while Belgian breeders import horses from neighbouring countries. Thereby, use of external information is needed as prior to achieve more accurate EBV. Pedigree and performance data contained 101,382 horses and 712,212 performances, respectively. After conversion to the Belgian trait, external information of 98 French and 67 Dutch stallions were integrated into the Belgian evaluation. Resulting Belgian rankings of the foreign stallions were more similar to foreign rankings according to the increase of the rank correlations of at least 12%. REL of their EBV were improved of at least 2% on average. External information was partially to totally equivalent to 4 years of contemporary horses’ performances or to all the stallions’ own performances. All these results showed the interest to integrate external information into the Belgian evaluation. [less ▲]

Géomètre: les enjeux de l'enseignement

Article for general public (2013)

L'avenir des modèles 3D urbains

Article for general public (2013)

ANALYTICAL STRATEGIES FOR THE DETECTION AND CHARACTERIZATION OF COUNTERFEIT MEDICINES

Conference (2013, June)