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L'autre parole des jeunesJacquemain, Marc ![]() Article for general public (2013) Le texte défend que la participation se décline selon deux modalités : une modalité institutionnelle "top down" et une modalité oppositionnelle "bottom up". Tout élargissement de la participation comporte ... [more ▼] Le texte défend que la participation se décline selon deux modalités : une modalité institutionnelle "top down" et une modalité oppositionnelle "bottom up". Tout élargissement de la participation comporte les deux modalités : c'est à la fois une forme "d'empowerment" qui élargit les droits d'expression de la demande sociale et c'est en même temps, une forme de contrôle social qui limite la radicalité de cette expression. Cette dualité est inhérente au fonctionnemment démocratique et la participation des jeunes dans les institutions de l'Aide à la Jeunesse doit se comprendre et se gérer en tenant compte de cette double dimension contradictoire. [less ▲] Detailed reference viewed: 36 (2 ULg) Measuring poverty without the Mortality ParadoxLefebvre, Mathieu ; Pestieau, Pierre ; Ponthiere, Grégory ![]() in Social Choice and Welfare (2013), 40(1), 285-316 Under income-differentiated mortality, poverty measures reflect not only the “true” poverty, but, also, the interferences or noise caused by the survival process at work. Such interferences lead to the ... [more ▼] Under income-differentiated mortality, poverty measures reflect not only the “true” poverty, but, also, the interferences or noise caused by the survival process at work. Such interferences lead to the Mortality Paradox: the worse the survival conditions of the poor are, the lower the measured poverty is. We examine several solutions to avoid that paradox. We identify conditions under which the extension, by means of a fictitious income, of lifetime income profiles of the prematurely dead neutralizes the noise due to differential mortality. Then, to account not only for the “missing” poor, but, also, for the “hidden” poverty (premature death), we use, as a fictitious income, the welfare-neutral income, making indifferent between life continuation and death. The robustness of poverty measures to the extension technique is illustrated with regional Belgian data. [less ▲] Detailed reference viewed: 6 (1 ULg) Rapport scientifique et technique du projet HYDRASANTE (annee 3)Boudry, Christelle ; François, Emmanuelle ; et alReport (2013) Detailed reference viewed: 11 (1 ULg) Rapport intermédiaire d'évaluation des Plans de Cohésion Sociale:Intégration des études de cas approfondiesFallon, Catherine ; Thiry, Aline ; Dassargues, Alix et alReport (2013) Le rapport intermédiaire propose une synthèse des enseignements tirés lors de l'étude approfondie de six plans de cohésion sociale en Région Wallonne. Ce travail a été réalisé dans le cadre d'une ... [more ▼] Le rapport intermédiaire propose une synthèse des enseignements tirés lors de l'étude approfondie de six plans de cohésion sociale en Région Wallonne. Ce travail a été réalisé dans le cadre d'une évaluation des processus de mise en oeuvre au niveau local des plans de cohésion sociale, l'objectif des études de cas était de comprendre les mécanismes et les éléments-clefs de la mise en oeuvre des PCS au niveau local. Les PCS des communes de Philippeville, Herstal, Condroz, Farciennes, Braine L'Alleud et Tubize ont été étudiés à raison de cinq entretiens approfondis dans chaque commune. [less ▲] Detailed reference viewed: 19 (3 ULg) Monographie du plan de cohésion sociale de la commune de Tubize – Evaluation des plans de cohésion sociale en région WallonneThiry, Aline ; Dassargues, Alix ; Fallon, Catherine et alReport (2013) Il s'agit d'une étude approfondie du Plan de Cohésion Sociale de la commune de Tubize réalisée dans le cadre de l'évaluation des processus de mise en oeuvre des PCS au niveau local. La monographie propose ... [more ▼] Il s'agit d'une étude approfondie du Plan de Cohésion Sociale de la commune de Tubize réalisée dans le cadre de l'évaluation des processus de mise en oeuvre des PCS au niveau local. La monographie propose une analyse minutieuse des cinq entretiens approfondis qui ont été menés avec des acteurs-clefs du PCS de la commune. Au total, six monographies ont été réalisées afin de comprendre les mécanismes et les éléments-clefs de la mise en oeuvre des PCS au niveau local. La synthèse des six études de cas fait l'objet d'un rapport intermédiaire de la recherche intitulé: "intégration des études de cas approfondies". [less ▲] Detailed reference viewed: 22 (6 ULg) Modelling the β-amylase activity during red sorghum malting when Bacillus subtilis is used to control mould growthBwanganga Tawaba, Jean-Claude ; Bera, François ; Thonart, Philippe ![]() in Journal of Cereal Science (2013), 57 Steeping in dilute alkaline (0.2% NaOH) followed by resteeping in biocontrol (starters of Bacillus subtilis S499) has been used during red sorghum malting. The effect of steeping and germination ... [more ▼] Steeping in dilute alkaline (0.2% NaOH) followed by resteeping in biocontrol (starters of Bacillus subtilis S499) has been used during red sorghum malting. The effect of steeping and germination conditions has been described using 2 functions: a Weibull 4-parameter model combined with a General Linear Model with Logarithm Link with significant goodness. Steeping conditions (combined use of NaOH and Bacillus subtilis S499) affects the synthesis capacity of grain: when Bacillus subtilis culture used in the steeping step is diluted, lnα increases, suggesting a loss of treatment efficacy. The germination temperature affects the β-amylase synthesis rate during the induction phase: the germination temperature increase is accompanied by a decrease of the β-amylase synthesis rate. During the repression phase of β-amylase synthesis, the effect of malting conditions was found to taper. [less ▲] Detailed reference viewed: 29 (3 ULg) Numerical analysis of partially fire protected composite slabs; ; et al in Steel and Composite Structures (2013), 14(1), 21-39 The paper presents a numerical investigation, done with the computer program SAFIR, in order to obtain simpler finite element models for representing the behaviour of the partially protected composite ... [more ▼] The paper presents a numerical investigation, done with the computer program SAFIR, in order to obtain simpler finite element models for representing the behaviour of the partially protected composite steel concrete slabs in fire situation, considering the membrane action. Appropriate understanding and modelling of the particular behaviour of composite slabs allows a safe approach, but also substantial savings on the thermal insulation that has to be applied on the underlying steel structure. The influence of some critical parameters on the behaviour and fire resistance of composite slabs such as the amount of reinforcing steel, the thickness of the slab and the edge conditions is also highlighted. The numerical models are calibrated using the results of three full scale fire tests on composite slabs that have been performed in recent years. [less ▲] Detailed reference viewed: 80 (19 ULg) Je me souviens...WANG, François-Charles ![]() in Lettre du Neurologue (La) : le Courrier du Spécialiste (2013), XVII(1), 5-6 Detailed reference viewed: 4 (0 ULg) Decommissioned dates: chemical composition and fermentation substrate for the production of extracellular catalase by an Aspergillus phoenicis mutant; ; et al in Agriculture and Biology Journal of North America (2013) The recovery of dates downgraded as a fermentation medium for the production of extracellular catalase by Aspergillus phoenicis K30 was studied. Analysis of the chemical composition of pulp and kernel ... [more ▼] The recovery of dates downgraded as a fermentation medium for the production of extracellular catalase by Aspergillus phoenicis K30 was studied. Analysis of the chemical composition of pulp and kernel flour of dates showed that the pulp had a considerably greater carbohydrate content compared to the kernel (84 vs 2.93% respectively). However, the kernel flour was richer in nitrogen (0.68% vs 0.34), mineral elements (3.63 vs 1.28%) and in essential fatty acids C18: 2 vs C18: 3 than the pulp flour. The soluble extract of the date flour showed that sugars solubilised at 90% consisted of sucrose, fructose and glucose. Therefore, this extract, being an important source of carbon and energy, was used in the current study as a fermentation medium (after supplementation with 20% of corn steep) for the production of extracellular catalase by A. Phoenicis K30. During the course of this fermentation, the biomass was estimated at 18.6 g / L after 72 h of culture, while the maximum concentration of extracellular catalase (47.5 U / ml) was reached at 96 h of fermentation. The mycelium obtained in pellet form is suitable for industrial exploitation of this process. [less ▲] Detailed reference viewed: 16 (2 ULg) Les adénomes hypophysaires : du diagnostic au traitement en passant par la contraception, la grossesse et la ménopauseBeckers, Albert ![]() Scientific conference (2013, January) Detailed reference viewed: 20 (4 ULg) La fiscalité internationale en Belgique - Tendances récentesRichelle, Isabelle ; Book published by Larcier - 1re éd. (2013) Cet ouvrage analyse un large éventail de questions importantes allant de la détermination des bénéfices à l’étude de la mobilité et du traitement fiscal de revenus mobiliers, en passant par l’imposition ... [more ▼] Cet ouvrage analyse un large éventail de questions importantes allant de la détermination des bénéfices à l’étude de la mobilité et du traitement fiscal de revenus mobiliers, en passant par l’imposition des travailleurs internationaux et l’analyse de divers instruments fiscaux internationaux. L’examen des méthodes de prévention de la double imposition internationale et la détermination de la résidence fiscale des contribuables sont également abordées en détails. [less ▲] Detailed reference viewed: 21 (12 ULg) Le choix entre l’exemption et l’imputation - Cas d’application : la compensation des pertesRichelle, Isabelle ![]() in Richelle, Isabelle; Traversa, Edoardo (Eds.) La Fiscalité internationale en Belgique - Tendances récentes (2013) 1. Choix entre taxation territoriale et taxation mondiale 2. La situation en Belgique 3. Incidence de la jurisprudence de la Cour de justice Detailed reference viewed: 22 (9 ULg) Algorithmes d'approximation pour les problèmes d'affectation multidimensionnelsCrama, Yves ![]() Scientific conference (2013, January) Le problème d'affectation multidimensionnel (PAM) consiste à partitionner les sommets d'un graphe m-parti en m-cliques disjointes de façon à minimiser la somme des coûts des cliques utilisées, où le coût ... [more ▼] Le problème d'affectation multidimensionnel (PAM) consiste à partitionner les sommets d'un graphe m-parti en m-cliques disjointes de façon à minimiser la somme des coûts des cliques utilisées, où le coût des cliques peut être défini de différentes façons. PAM généralise le problème d'affectation ou de couplage biparti classique qui correspond au cas m=2. Nous présentons plusieurs résultats, anciens et nouveaux, relatifs à des cas particuliers de PAM obtenus en spécifiant les propriétés du coût des cliques. Pour ces cas particuliers, nous décrivons des algorithmes d'approximation, nous examinons leurs garanties de performance, et nous mentionnons quelques questions ouvertes. [less ▲] Detailed reference viewed: 24 (0 ULg) Transport of dissolved Si from soil to river: a conceptual mechanistic model; ; et al in Silicon (2013), 5(1), 115-133 This paper reviews the processes which determine the concentrations of dissolved silicon (DSi) in soil water and proposes a mechanistic model for understanding the transport of Si through a typical podzol ... [more ▼] This paper reviews the processes which determine the concentrations of dissolved silicon (DSi) in soil water and proposes a mechanistic model for understanding the transport of Si through a typical podzol soil to the river. DSi present in natural waters originates from the dissolution of mineral and amorphous Si sources in the soil. However, the DSi concentration in natural waters will be dependent on both dissolution and deposition/precipitation processes. The net DSi export is controlled by soil composition like (mineralogy and saturated porosity) as well as water composition (pH, concentrations of organic acids, CO2 and electrolytes). These state variables together with production, polymerization and adsorption equations constitute a mechanistic framework determining DSi concentrations. For a typical soil profile in a temperate climate, we discuss how the values of these key controls differ in each soil horizon and how it influences the DSi transport. Additionally, the impact of external forcings such as seasonal climatic variations and land use, is evaluated. This model is a first step to better understand Si transport processes in soils and should be further validated with field measurements. [less ▲] Detailed reference viewed: 15 (1 ULg) Sensitivity analysis for multibody systems formulated on a Lie groupSonneville, Valentin ; Bruls, Olivier ![]() in Multibody System Dynamics (2013) A direct differentiation method and an adjoint variable method are proposed for the efficient semi-analytical evaluation of the sensitivities of multibody systems formulated in a matrix Lie group ... [more ▼] A direct differentiation method and an adjoint variable method are proposed for the efficient semi-analytical evaluation of the sensitivities of multibody systems formulated in a matrix Lie group framework. These methods rely on the linearization of the equations of motion and/or of the time integration procedure. The simpler structure of the equations of motion in the Lie group formalism appears as an advantage for that purpose. Lie bracket contributions and the non-linearity of the exponential map need to be taken into account in the sensitivity algorithms. Nevertheless, essential characteristics of formulations of the direct differentiation method and the adjoint variable method on linear spaces are recovered. Some implementation issues are discussed and two relevant examples illustrate the properties of these methods. [less ▲] Detailed reference viewed: 19 (2 ULg) Modélisation du bilan de masse de surface Antarctique : quelle stratégie et quelle validation ?Agosta, Cécile ; ; Fettweis, Xavier et alConference (2013, January) Le bilan de masse de surface (BMS) Antarctique est encore mal connu, bien qu'on sache qu'il contribue de façon significative à l'évolution actuelle du niveau des mers et que sa contribution soit supposée ... [more ▼] Le bilan de masse de surface (BMS) Antarctique est encore mal connu, bien qu'on sache qu'il contribue de façon significative à l'évolution actuelle du niveau des mers et que sa contribution soit supposée s'intensifier au cours des prochains siècles. Outre son effet direct sur le niveau des mers, le BMS est également un champs de forçage primordial pour les modèles de calotte. Enfin, alors qu'il existe des mesures directes de l'écoulement de la glace vers l'océan et des variations de masse totales (surface+écoulement) de la calotte, il n'existe pas de mesure directe du bilan de masse de surface à l'échelle du continent. La climatologie actuelle du BMS Antarctique est donc estimée principalement à partir de résultats de modélisation. Il est donc crucial de modéliser correctement le bilan de masse de surface Antarctique. Or cette modélisation n'est pas aisée, car il existe peu de modèles de climat, globaux ou régionaux, dont la physique soit appropriée pour modéliser l'atmosphère sur des surfaces englacées. De plus, la résolution a une influence importante sur la représentation du BMS, ce qui oblige à faire des compromis entre résolution et complexité des modèles pour conserver des coûts de calcul raisonnables. Nous présentons la méthodologie que nous avons adoptée pour modéliser le BMS Antarctique sur plusieurs siècles et à haute résolution. Elle s'appuie sur une cascade de modèles adaptés aux conditions polaires à différentes échelles. Nous nous penchons également sur l'épineux problème de l'évaluation du BMS modélisé à partir de données de terrain. En effet, un effort important a été réalisé pour répertorier les données de BMS de qualité en Antarctique, mais ces données restent éparses et échantillonnent mal le continent. L'utilisation d'autres types de données, satellites ou aéroportées par exemple, semble nécessaire et nous ferons un état des lieux des limitations qui restent à dépasser pour y parvenir. [less ▲] Detailed reference viewed: 16 (2 ULg) A l'école de l'autre. Ricoeur, lecteur de la philosophie analytiqueLeclercq, Bruno ![]() in Canivez, Patrice; Couloubaritsis, Lambros (Eds.) L'éthique et le soi chez Paul Ricoeur. Huit études sur Soi-même comme un autre (2013) Detailed reference viewed: 17 (0 ULg) Rates of consumption of atmospheric CO2 through the weathering of loess during the next 100 yr of climate change; ; François, Louis et alin Biogeosciences (2013), 10 Quantifying how C fluxes will change in the future is a complex task for models because of the coupling between climate, hydrology, and biogeochemical reactions. Here we investigate how pedogenesis of the ... [more ▼] Quantifying how C fluxes will change in the future is a complex task for models because of the coupling between climate, hydrology, and biogeochemical reactions. Here we investigate how pedogenesis of the Peoria loess, which has been weathering for the last 13 kyr, will respond over the next 100 yr of climate change. Using a cascade of numerical models for climate (ARPEGE), vegetation (CARAIB) and weathering (WITCH), we explore the effect of an increase in CO2 of 315 ppmv (1950) to 700 ppmv (2100 projection). The increasing CO2 results in an increase in temperature along the entire transect. In contrast, drainage increases slightly for a focus pedon in the south but decreases strongly in the north. These two variables largely determine the behavior of weathering. In addition, although CO2 production rate increases in the soils in response to global warming, the rate of diffusion back to the atmosphere also increases, maintaining a roughly constant or even decreasing CO2 concentration in the soil gas phase. Our simulations predict that temperature increasing in the next 100 yr causes the weathering rates of the silicates to increase into the future. In contrast, the weathering rate of dolomite – which consumes most of the CO2 – decreases in both end members (south and north) of the transect due to its retrograde solubility. We thus infer slower rates of advance of the dolomite reaction front into the subsurface, and faster rates of advance of the silicate reaction front. However, additional simulations for 9 pedons located along the north–south transect show that the dolomite weathering advance rate will increase in the central part of the Mississippi Valley, owing to a maximum in the response of vertical drainage to the ongoing climate change. The carbonate reaction front can be likened to a terrestrial lysocline because it represents a depth interval over which carbonate dissolution rates increase drastically. However, in contrast to the lower pH and shallower lysocline expected in the oceans with increasing atmospheric CO2, we predict a deeper lysocline in future soils. Furthermore, in the central Mississippi Valley, soil lysocline deepening accelerates but in the south and north the deepening rate slows. This result illustrates the complex behavior of carbonate weathering facing short term global climate change. Predicting the global response of terrestrial weathering to increased atmospheric CO2 and temperature in the future will mostly depend upon our ability to make precise assessments of which areas of the globe increase or decrease in precipitation and soil drainage. [less ▲] Detailed reference viewed: 3 (1 ULg) Dispositf pilote de Cellules bien-être en Fédération Wallonie Bruxelles. Rapport d'évaluation intermédiaire EvalCBE.1 : Mise en oeuvre du dispositif au niveau localVandoorne, Chantal ; Hubin, Noémie ![]() Report (2013) Detailed reference viewed: 12 (4 ULg) Morphometric analyses of the body and the branches of the normal third interosseous muscle (suspensory ligament) in StandardbredsShikh Al Sook, Mohamad Khir ; Antoine, Nadine ; Piret, Joëlle et alin Anatomia, Histologia, Embryologia (2013) The third interosseous muscle (suspensory ligament, TIOM) is composed of connective tissue (CT) with a variable proportion of muscle (MT) and adipose tissue (AT). The aim of our study is to quantify the ... [more ▼] The third interosseous muscle (suspensory ligament, TIOM) is composed of connective tissue (CT) with a variable proportion of muscle (MT) and adipose tissue (AT). The aim of our study is to quantify the CT, MT and AT within the body and the branches of right thoracic and pelvic limbs TIOM in sound horses to determine whether there are differences in CT, MT and AT between age, sex, limbs and levels. Right limbs from 11 sound horses were collected. Samples from 6 levels of the TIOM were embedded in paraffin or in Tissue-Tek®. Most of the paraffin sections were shredded. Using the cryosection, some artefacts appeared. Cryoprotection was carried out, which produced the best results. Hematoxylin–phloxine–saffron and Hematoxylin–eosin gave a good contrast of colours between the tissues observed allowing the use of an image analysis programme to calculate percentage of each tissue within the TIOM. The percentage of MT and AT decreased significantly (P < 0.0001), whereas the percentage of CT increased significantly (P < 0.0001) with age and when descending from the proximal to the distal level of the TIOM. The percentage of MT was significantly higher (P < 0.0001) in females than males, while the percentage of CT was significantly higher (P < 0.0001) in males than females. The percentage of AT was significantly higher (P = 0.0278) in pelvic limbs than in thoracic limbs. These results confirm the variation in tissue composition within the TIOM of sound horses. [less ▲] |
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