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See detailQuand les femmes veulent leur part. L'héritage et la justice à Cotonou
Andreetta, Sophie ULg

Conference (2014, May)

Depuis plusieurs années maintenant, le Bénin tente de réaliser l’un des principes clés des normes internationales : l’égalité. Evoqué dans la constitution de 1990, ce principe est aujourd’hui au centre de ... [more ▼]

Depuis plusieurs années maintenant, le Bénin tente de réaliser l’un des principes clés des normes internationales : l’égalité. Evoqué dans la constitution de 1990, ce principe est aujourd’hui au centre de nombreuses modifications législatives visant, entre autres, à ‘moderniser’ les textes datant pour la plupart de la période coloniale. Parmi ces derniers, le Code des Personnes et de la Famille réforme le droit civil en matière de divorces, de garde d’enfants, et de successions. C’est cette dernière question qui retiendra mon attention. En effet, alors que dans la plupart des coutumes, les femmes n’héritent pas des biens immeubles, cette nouvelle loi déclare tous les héritiers égaux, accordant également au conjoint survivant la pleine propriété du quart de la masse successorale. Je me pencherai donc sur le parcours de ces femmes qui recourent à la justice pour « réclamer leur part » du patrimoine successoral. Pourquoi décident-elles de s’opposer à leurs familles ? Quels sont leurs intermédiaires ? Quels sont les différents forums possibles, les étapes préalables au tribunal ? Comment interprètent-elles, ou utilisent-elles le droit étatique ? Enfin, une fois le tribunal saisi, c’est également la question de l’application des principes du droit qui se pose. Quels sont les arguments des uns et des autres à l’audience ? Comment les juges parviennent-ils à trancher? Mais surtout, comment leurs décisions sont-elles mises en œuvre au-delà du tribunal ? [less ▲]

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See detailAlkaline hydrolysis for animal carcass disposal: a regulatory challenge
Van der Meulen, Karen; Custer, René; Houthoofd, Koen et al

Conference (2014, May)

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See detailLa Fête du 14 juillet à Liège vue par le consul de France Léon Labbé (1919-1930). Une célébration sous surveillance
Genin, Vincent ULg

in Bulletin de la Société Royale Le Vieux-Liège (2014), 344

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See detailLiens entre le statut socio-économique et la consommation de substances chez les adolescents : Quelles incidences pour les filles et les garçons ?
Mathys, Cécile ULg; Hénin, Tamara; Glowacz, Fabienne ULg

Conference (2014, May)

La consommation de substances à l’adolescence constitue une conduite à risque qui n’en est pas moins populaire chez les jeunes. Ses facteurs explicatifs sont régulièrement examinés, toutefois, les liens ... [more ▼]

La consommation de substances à l’adolescence constitue une conduite à risque qui n’en est pas moins populaire chez les jeunes. Ses facteurs explicatifs sont régulièrement examinés, toutefois, les liens qui unissent le statut socio-économique et la consommation de substances ne sont toujours pas clairs. Par exemple, le concept de statut socio-économique reste difficilement appréhendable du point de vue de l’adolescent et la question de la différence entre les genres demeure. Cette étude se propose d’analyser dans quelle mesure le statut socio-économique peut prédire, directement et par effet d’interaction avec l’estime de soi, autre prédicteur examiné, la consommation d’alcool et de substances illicites au sein des deux sexes. Des mesures auto-rapportées et standardisées ont été administrées à 330 adolescents, âgés de 14 à 17 ans, et provenant de différents types d’enseignement de la Fédération Wallonie-Bruxelles, respectivement 162 filles (moy. âge = 15,6 ans) et 168 garçons (moy. âge = 15,6 ans). A l’aide de statistiques réalisées par SPSS, nous pouvons premièrement montrer une différence significative dans la consommation de substances entre les filles et les garçons (t (328) = 2,21, p= 0,03). Deuxièmement, le statut socio-économique ne serait pas significatif chez les garçons (b = 0,48, 95% CI [-0,59, 1,56], t = 0,89, NS), tandis qu’il expliquerait marginalement la consommation de substances chez les filles (b = 0,11, 95% CI [-0,003, 0,21], t = 1,91, p = 0,06). D’autre part, la relation positive entre le statut socio-économique et la consommation de substances s’avèrerait plus forte lorsque les jeunes filles présentent des niveaux peu élevés d’estime de soi (b = -0,33, 95% CI [-0,06, -0,004], t = -2,27, p = 0,02). Cette étude se conclut par une discussion concernant l’implication de ces résultats, notamment en matière de compréhension des facteurs explicatifs de la consommation d’alcool et de substances illicites chez les filles et chez les garçons. [less ▲]

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See detailLe redoublement scolaire rend-il les élèves plus agressifs? Etude quasi-expérimentale sur le redoublement scolaire en début de secondaire et ses conséquences sur l’agressivité
Mathys, Cécile ULg; Véronneau, Marie-Hélène; Lecocq, Aurélie

Conference (2014, May)

Le taux de redoublement scolaire est particulièrement élevé en Belgique. Bien que ses effets concernant les performances académiques soient régulièrement étudiés, les conséquences du redoublement scolaire ... [more ▼]

Le taux de redoublement scolaire est particulièrement élevé en Belgique. Bien que ses effets concernant les performances académiques soient régulièrement étudiés, les conséquences du redoublement scolaire sur l’adaptation psychosociale des élèves fait encore peu l’objet de recherches rigoureuses, notamment concernant le niveau d’agressivité des élèves qui ont vécu un redoublement. Par ailleurs, l’entrée en enseignement secondaire coïncide avec l’affirmation de nouveaux statuts sociaux pour les élèves et l’agressivité peut être une façon d’établir une hiérarchie au sein des groupes de pairs. L’objectif de cette étude est d’examiner si le redoublement scolaire affecte à court terme le niveau d’agressivité d’élèves se situant au début de leur cursus d’enseignement secondaire. Un protocole quasi-expérimental a été utilisé et deux groupes d’élèves comparables (doublants et promus) ont pu être crées grâce à des scores de propension sur base de 26 variables collectées. Des mesures auto-rapportées et standardisées ont été administrées sur deux semestres et un échantillon de 72 élèves provenant d’un établissement secondaire typique de la Fédération Wallonie-Bruxelles (moy. âge = 12.9 ans, 47.2% de filles, 70% d’origine belge) a été identifié. Des analyses univariées réalisées par SPSS (F (1,67) = 6,98, p = 0,01) révèlent que durant l’année suivant le redoublement scolaire, les élèves ayant doublé ne montrent pas de diminution de leur niveau d’agressivité (t (35) = 0,50, ns), contrairement aux élèves ayant été promus (t (32) = 3,32, p = 0,01). En outre, ces résultats sont significativement « palpables » comme l’indique la taille de l’effet plutôt élevée (d = .64). Ces résultats sont discutés en termes d’implications, notamment concernant l’importance de continuer à maintenir un statut social pour les élèves ayant vécu une expérience de redoublement au début de leur cursus en enseignement secondaire, contrairement aux élèves qui ont été promus. [less ▲]

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See detailGrade retention at the transition to secondary school: A quasi-experimental study of its consequences on relationships with parents and peers
Lecocq, Aurélie; Mathys, Cécile ULg; Véronneau, Marie-Hélène

Conference (2014, May)

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See detailDeterminant of fat mass percentage and absolute fat-free mass in preterm infants at the time of hospital discharge
Simon, Laure; Frondas-Chauty, Anne; SENTERRE, Thibault ULg et al

in American Journal of Clinical Nutrition (2014), 100(1), 98-104

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See detailMicroRNA Targeting of CoREST controls polarization of migrating cortical neurons
Volvert; Prévot, Pierre-Paul; Close, Pierre ULg et al

in Cell Reports (2014), 7(4), 1168-83

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See detailEffects of two PBDE congeners on the moulting enzymes of the freshwater amphipod Gammarus pulex.
Gismondi, Eric ULg; Thomé, Jean-Pierre ULg

Poster (2014, May)

Polybrominated diphenyl ethers (PBDEs) constitute a class of chemical compounds included to the composition of usual products such as plastics, textiles or electrical equipment, due to their flame ... [more ▼]

Polybrominated diphenyl ethers (PBDEs) constitute a class of chemical compounds included to the composition of usual products such as plastics, textiles or electrical equipment, due to their flame retardants properties. Since 2004, PBDEs were banned in Europe and listed as Priority Substances within the European Union Water Frame Work Directive. Unfortunately, the release of PBDEs always occurs in ecosystems due to their presence in products currently in use and new products manufactured using recycled PBDE-containing material. However, only few studies have investigated their impacts on freshwater invertebrates. This work aimed to study the effects of BDE-47 and BDE-99 congeners on the chitobiase and chitinolytic enzymes activities of the freshwater amphipod Gammarus pulex, according to gender, PBDE concentration and time of exposure. In addition, the bioaccumulation of BDE-47 and BDE-99 were measured. The results revealed that there was a dose-response relationship for the PBDE accumulation in G. pulex, whatever the gender and the PBDE congeners. Female G. pulex bioaccumulated more PBDE than males, and especially BDE-99 which was more accumulated than BDE-47. Moreover, PBDE exposures for 96hrs have caused the inhibition of chitobiase and chitinolytic enzymes activities. This study not only indicate the importance of taking into account various confounding factors (gender, congeners, concentration) to understand the PBDE effects, but underline also disruptions of enzymes activities involved in the molting process. These disturbances suggest effects on the gammarid development and reproduction, and consequently on the gammarid population. [less ▲]

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See detailA generic approach for solving nonlinear-discrete security-constrained power flow problems in large-scale systems
Platbrood, Ludovic; Capitanescu, Florin; Crisciu, Horia et al

in IEEE Transactions on Power Systems (2014), 29(3), 1194-1203

This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to ... [more ▼]

This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to identify the binding contingencies at the optimum, and a network compression method, used to reduce the complexity of the post-contingency models included in the SCOPF formulation. We show that by combining these two complementary ideas, it is possible to solve in a reasonable time SCOPF problems on large power system models with a large number of contingencies. Unlike most results reported for large-scale SCOPF problems, our algorithm uses a non-linear AC network model in both pre-contingency and post-contingency states, optimizes both active/reactive powers flows jointly, and treats the discrete variables. The proposed algorithm is implemented with state-of-the-art solvers and applied to two systems: a national grid with 2563 buses and 1297 contingencies, and a model of the European transmission network with 9241 buses and 12000 contingencies. [less ▲]

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See detailImplementation of a non-orthogonal constitutive model for the finite element simulation of textile composite draping
Pierce, Robert S; Falzon, Brian G; Thompson, Mark C et al

in Applied Mechanics and Materials (2014), 553

In the pursuit of producing high quality composite aircraft structures at a low cost, out-of-autoclave manufacturing processes for textile reinforcements are being simulated with increasing accuracy. This ... [more ▼]

In the pursuit of producing high quality composite aircraft structures at a low cost, out-of-autoclave manufacturing processes for textile reinforcements are being simulated with increasing accuracy. This paper focuses on the continuum-based, finite element modelling of textile composites as they deform during the draping process. A non-orthogonal constitutive model tracks yarn orientations within a material subroutine developed for Abaqus/Explicit, resulting in the realistic determination of fabric shearing and material draw-in. Supplementary material characterisation was experimentally performed in order to define the tensile and non-linear shear behaviour accurately. The validity of the finite element model has been studied through comparison with similar research in the field and the experimental lay-up of carbon fibre textile reinforcement over a tool with double curvature geometry, showing good agreement. [less ▲]

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See detailToggling a genetic switch using reinforcement learning
Sootla, Aivar; Strelkowa, Natalja; Ernst, Damien ULg et al

in Proceedings of the 9th French Meeting on Planning, Decision Making and Learning (2014, May)

In this paper, we consider the problem of optimal exogenous control of gene regulatory networks. Our approach consists in adapting an established reinforcement learning algorithm called the fitted Q ... [more ▼]

In this paper, we consider the problem of optimal exogenous control of gene regulatory networks. Our approach consists in adapting an established reinforcement learning algorithm called the fitted Q iteration. This algorithm infers the control law directly from the measurements of the system’s response to external control inputs without the use of a mathematical model of the system. The measurement data set can either be collected from wet-lab experiments or artificially created by computer simulations of dynamical models of the system. The algorithm is applicable to a wide range of biological systems due to its ability to deal with nonlinear and stochastic system dynamics. To illustrate the application of the algorithm to a gene regulatory network, the regulation of the toggle switch system is considered. The control objective of this problem is to drive the concentrations of two specific proteins to a target region in the state space. [less ▲]

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See detailThree North American Mystery Tales
Dechêne, Antoine ULg

Conference (2014, May)

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See detailHigh resolution saturated hydraulic conductivity logging of friable to poorly indurated borehole cores using air permeability measurements
Rogiers, Bart; Winters, P.; Huysmans, Marijke et al

in Hydrogeology Journal (2014)

Saturated hydraulic conductivity (Ks) is one of the most important parameters determining groundwater flow and contaminant transport in both unsaturated and saturated porous media. This paper investigates ... [more ▼]

Saturated hydraulic conductivity (Ks) is one of the most important parameters determining groundwater flow and contaminant transport in both unsaturated and saturated porous media. This paper investigates the hand-held air permeameter technique for high resolution hydraulic conductivity determination on borehole cores using a spatial resolution of ~0.05 m. We test the suitability of such air permeameter measurements on friable to poorly indurated sediments to improve the spatial prediction of classical laboratory based Ks measurements obtained at a much lower spatial resolution (~2 m). About 368 Ks measurements were made on ~350 m of borehole cores originating from the Campine basin, Northern Belgium, while ~5230 air permeability measurements were performed on the same cores. The heterogeneity in sediments, ranging from sand to clayey sand with distinct clay lenses, resulted in a Ks range of seven orders of magnitude. Cross-validation demonstrated that using air permeameter data as secondary variable and laboratory based Ks measurements as primary variable increased performance from R2 = 0.35 for ordinary kriging (laboratory Ks only) to R2 = 0.61 for co-kriging. Due to the large degree of small-scale variability detected by the air permeameter, the spatial granularity in the predicted laboratory Ks also increases drastically. The separate treatment of Kh and Kv revealed considerable anisotropy in certain lithostratigraphical units, while others where clearly isotropic at the sample scale. Air permeameter measurements on borehole cores provide a cost-effective way to improve spatial predictions of traditional laboratory based Ks. [less ▲]

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See detailCacahuète céleste
Nazé, Yaël ULg

Article for general public (2014)

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See detailProjected inhibition of platelet aggregation with ticagrelor twice daily vs. clopidogrel once daily based on patient adherence data (the TWICE project)
Vrijens, Bernard ULg; Claeys, M.J.; LEGRAND, Victor ULg et al

in British Journal of Clinical Pharmacology (2014), 77(5), 746-755

Abstract Aim Twice daily dosing is often perceived as inferior to once daily dosing due to a higher likelihood of missing a dose. However, more important is the extent to which drug action is maintained ... [more ▼]

Abstract Aim Twice daily dosing is often perceived as inferior to once daily dosing due to a higher likelihood of missing a dose. However, more important is the extent to which drug action is maintained when doses are delayed or missed. We compared the estimated inhibition of platelet aggregation (eIPA) for ticagrelor twice daily and clopidogrel once daily, based on their pharmacokinetic/ pharmacodynamic relationships and patient dosing history data. Methods Drug dosing histories of 5014 patients prescribed cardiovascular medications (primarily antihypertensive medicines) were extracted from an electronically compiled dosing history database. eIPA levels were simulated for 677 twice daily and 677 once daily dosing histories over a 30 day period, based on published onset/offset models for ticagrelor and clopidogrel IPA characteristics. Results While many patients treated twice daily missed at least one dose in 30 days, only 25.7% missed two consecutive doses. By comparison, 46.8% of patients treated once daily missed at least one dose. Simulations based on patient adherence over time showed that the average mean eIPA for ticagrelor twice daily remained significantly higher than for clopidogrel once daily (81.1% vs. 55.0%, P < 0.001). Ticagrelor twice daily patients had an eIPA below 10% for 0.20% of the 30 day period compared with 2.05% for clopidogrel once daily (P = 0.0001). Conclusions The projected level of platelet inhibition remained higher for ticagrelor twice daily than clopidogrel once daily, mainly due to the higher eIPA level achieved with ticagrelor and the relatively low likelihood of missing two consecutive twice daily doses. This modelling and simulation study suggests a therapeutic benefit of ticagrelor over clopidogrel when taking into account the most common dosing omissions. © 2013 The British Pharmacological Society. [less ▲]

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See detailMaison Van Spauwen
Frankignoulle, Pierre ULg

in Charlier, Sébastien; Moor, Thomas (Eds.) Guide Architecture moderne et contemporaine 1895-2014. Liège . (2014)

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