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See detailETUDE DE L’EVOLUTION DES COEFFICIENTS DE TRANSFERT DE SURFACE LORS DU SECHAGE D’UN MILIEU POREUX HUMIDE
Kahlerras, Loubna ULg; Belhamri, Azeddine

Conference (2010, December 06)

Ce travail se propose d’analyser les phénomènes du séchage convectif d’un milieu poreux non saturé. Le modèle de calcul considère le couplage des équations de la couche limite et celles qui décrivent le ... [more ▼]

Ce travail se propose d’analyser les phénomènes du séchage convectif d’un milieu poreux non saturé. Le modèle de calcul considère le couplage des équations de la couche limite et celles qui décrivent le transfert de chaleur et de masse dans un milieu poreux, ayant les caractéristiques du béton renforcé avec des coupeaux de bois. La simulation effectuée montre l’effet de certains paramètres pertinents du matériau comme la température initiale et l’humidité initiale, sur le processus du séchage. [less ▲]

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See detailMémoire déclarative et processus contrôlés
Adam, Stéphane ULg

Conference (2010, December 04)

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See detailApplication concrète d'un outil multimédia dans une visée pédagogique : le passé composé en néerlandais - Présentation PowerPoint
Pagnoul, Pierre ULg

Learning material (2010)

Cette présentation a pour objectif de montrer une application concrète d'un outil multimédia dans une visée pédagogique : la clarification grammaticale de la formation du VTT en néerlandais sur un support ... [more ▼]

Cette présentation a pour objectif de montrer une application concrète d'un outil multimédia dans une visée pédagogique : la clarification grammaticale de la formation du VTT en néerlandais sur un support PowerPoint. [less ▲]

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See detailS'engager en secret : retour sur l'Album zutique
Saint-Amand, Denis ULg

Conference given outside the academic context (2010)

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See detailTendon lesion and platelet-rich plasma (PRP) injection: rat model
Kaux, Jean-François ULg; Drion, Pierre ULg; Renouf, Julien et al

in Annual Congress of the RBSPRM (2010, December 03)

Introduction: For a few years, the positive effect of platelets on the healing process of different tissues (skin, bones...) was demonstrated. In fact platelets contain lots of growth factors which can be ... [more ▼]

Introduction: For a few years, the positive effect of platelets on the healing process of different tissues (skin, bones...) was demonstrated. In fact platelets contain lots of growth factors which can be release locally and enhance the healing process. Thus the aim of our experiment was to ascertain by an original mechanical measure whether the use of PRP was of interest for accelerating the healing process of rats’ Achilles tendons after surgical induced lesion. Methods: Ninety rats’ Achilles tendons were sectioned. Forty-two rats beneficed of a PRP injection in situ. After 5, 15 and 30 days, 15 rats of both groups were euthanized after tendon sampling which were immediately submitted to a biomechanical tensile test until tendon rupture, using an original method of measurement (“cryo-jaw”). Histological and biochemical analyses were made as well as a quantification of collagen with an original procedure (quantification of the “greys” on histological cross-sections). Results: Tendons in the PRP group were more resistant to rupture than those in the control group. Histological findings showed in this group an increase of collagen proliferation and better collagen fibres reorganization. However, we did not find any biochemical difference neither in term of encoding gene expression for type III collagen, matrix metalloprotease 9 and tenomodulin. Conclusion: Our animal study demonstrated that an injection of PRP could accelerate the tendons healing process and improve its quality. [less ▲]

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See detailDéveloppements récents dans l’élaboration de composés radiopharmaceutiques au 99mTc.
Vidick, Geoffrey ULg

Scientific conference (2010, December 03)

Nouveaux développements dans la production de radio-pharmaceutiques au 99mTc et mise en perspective de l'apport de la chimie dans ce domaine.

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See detailles stéréotypes sexués à l'adolescence, entrave à l'égalité sexuée
Gavray, Claire ULg

Conference given outside the academic context (2010)

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See detailHomme d’Église, chef de guerre ou administrateur ? La redéfinition de la fonction ecclésiastique au début de la Renaissance : l’exemple du cardinal d’Amboise.
Dumont, Jonathan ULg

in Dumont, Jonathan; Fagnart, Laure (Eds.) Georges Ier d’Amboise (1460–1510) : une figure plurielle de la Renaissance (2010, December 03)

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See detailLe Projet de Cadre Commun de Référence et les contrats de services
Kohl, Benoît ULg

Conference (2010, December 03)

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See detailLes sources pour l’Histoire de l’architecture des Temps modernes en Wallonie
Gilles, Isabelle ULg

Scientific conference (2010, December 03)

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See detailUniversity students and their mental maps of Belgium
Deschouwer, Kris; Kavadias, Dimokritos; Reuchamps, Min ULg

Conference (2010, December 03)

In this presentation, we discuss the first results of our research "België getekent - La Belgique dessinée". We surveyed 6000 first year students from both sides of Belgium. We ask them to draw Belgium ... [more ▼]

In this presentation, we discuss the first results of our research "België getekent - La Belgique dessinée". We surveyed 6000 first year students from both sides of Belgium. We ask them to draw Belgium and fill a questionnaire about their attitudes toward Belgium and its future. [less ▲]

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See detailCe qu’on peut dire, montrer ou pas
Strivay, Lucienne ULg

Conference (2010, December 03)

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See detailLes limites du "pluralisme" : concentration et réseaux d'affaires dans l'industrie belge du multimédia
Geuens, Geoffrey ULg

Conference given outside the academic context (2010)

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See detailCSR Performance Measurements: Motivations, Tools and Survey Results
Crutzen, Nathalie ULg

Scientific conference (2010, December 02)

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See detailColliding-winds in massive star binaries: expectations from radio to gamma-rays
De Becker, Michaël ULg

Conference (2010, December 02)

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See detailEvaluating analytical results reliability using a Bayesian probability criterion
Rozet, Eric ULg; Lebrun, Pierre ULg; Boulanger, Bruno ULg et al

Poster (2010, December 02)

In pharmaceutical industries, quantitative analytical methods such as HPLC play a key role. Indeed, the analytical results obtained from them are used to make crucial decisions such as the release of ... [more ▼]

In pharmaceutical industries, quantitative analytical methods such as HPLC play a key role. Indeed, the analytical results obtained from them are used to make crucial decisions such as the release of batches of drugs, the evaluation of safety and efficacy of new drug candidates or the monitoring of patients health. Prior to their routine use, analytical methods are submitted to a stringent validation study where they have to demonstrate that they are fit for their final purpose, i.e. providing accurate result . Typically this demonstration is made by either providing point estimates of systematic error (bias) and random error (variance) or sometimes by providing interval estimates of these statistical parameters at several well defined concentration levels of the target analyte. They are then compared to maximum acceptable levels. More recently, tolerance intervals approaches have been proposed that are evaluated in a similar way at these key concentration levels. However none of these decision approaches allow knowing the probability to obtain accurate results over the whole concentration range of interest. Frequentist approximations have been proposed to estimate this probability but only at the concentration levels experimentally tested and not for the whole range of interest. In this work, a linear hierarchical Bayesian approach is proposed. It takes into account the potential random characteristic of the slope and intercept observed from one analytical run to the other, and also integrates the possible covariance between the parameters. Additionally, heteroscedasticity of the residual variance over the concentration range investigated is taken into account. A situation regularly observed in practice. Finally a reliability profile for the whole concentration range studied is obtained using MCMC sampling. This profile provides the probability (Prel) to obtain accurate results over the full concentration range investigated. This profile is then compared to a minimum reliability probability (Pmin) that will define the valid concentration range of the analytical method. The usefulness of this approach is illustrated through the validation of a bioanalytical method and also compared with a one concentration level at a time frequentist approach derived from tolerance intervals. [less ▲]

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