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See detailSmall-Angle Neutron Scattering investigation of cholesterol-doped DMPC liposomes interacting with β-cyclodextrin
Joset, Arnaud ULg; Grammenos, Angeliki; Hoebeke, Maryse ULg et al

in Journal of Inclusion Phenomena and Macrocyclic Chemistry (2016), 84(1), 153-161

The Small-Angle Neutron Scattering technique (SANS) has been applied to characterize the influence of a randomly methylated β–cyclodextrin (CD), called RAMEB, on dimyristoylphosphatidylcholine (DMPC ... [more ▼]

The Small-Angle Neutron Scattering technique (SANS) has been applied to characterize the influence of a randomly methylated β–cyclodextrin (CD), called RAMEB, on dimyristoylphosphatidylcholine (DMPC) liposomes doped with cholesterol. From the modelling of the experimental neutron scattering crosssections, the detailed response of the vesicle structure upon addition of increasing amounts of RAMEB up to 30 mM has been assessed. This study has been performed below and above the DMPC bilayer phase transition temperature and shows that cholesterol extraction by RAMEB is linked to a decrease of the average radius and of the aggregation number of the vesicles. This extraction takes place in a dose-dependent way until a more monodisperse population of cholesterol-free liposomes was obtained. In addition, the bilayer thickness evolution was inferred, as well as the liposome coverage by RAMEB. [less ▲]

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See detail2D dynamic studies combined with the surface curvature analysis to predict Arias Intensity amplification
Torgoev, Almazbek ULg; Havenith, Hans-Balder ULg

in Journal of Seismology (2016)

A 2D elasto-dynamic modelling of the pure topographic seismic response is performed for six models with a total length of around 23.0 km. These models are reconstructed from the real topographic settings ... [more ▼]

A 2D elasto-dynamic modelling of the pure topographic seismic response is performed for six models with a total length of around 23.0 km. These models are reconstructed from the real topographic settings of the landslide-prone slopes situated in the Mailuu-Suu River Valley, Southern Kyrgyzstan. The main studied parameter is the Arias Intensity (Ia, m/sec), which is applied in the GIS-based Newmark method to regionally map the seismically-induced landslide susceptibility. This method maps the Ia values via empirical attenuation laws and our studies investigate a potential to include topographic input into them. Numerical studies analyse several signals with varying shape and changing central frequency values. All tests demonstrate that the spectral amplification patterns directly affect the amplification of the Ia values. These results let to link the 2D distribution of the topographically amplified Ia values with the parameter called as smoothed curvature. The amplification values for the low-frequency signals are better correlated with the curvature smoothed over larger spatial extent, while those values for the high-frequency signals are more linked to the curvature with smaller smoothing extent. The best predictions are provided by the curvature smoothed over the extent calculated according to Geli’s law. The sample equations predicting the Ia amplification based on the smoothed curvature are presented for the sinusoid-shape input signals. These laws cannot be directly implemented in the regional Newmark method, as 3D amplification of the Ia values addresses more problem complexities which are not studied here. Nevertheless, our 2D results prepare the theoretical framework which can potentially be applied to the 3D domain and, therefore, represent a robust basis for these future research targets. [less ▲]

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See detailThe effects of a documentary film about schizophrenia on cognitive, affective and behavioural aspects of stigmatisation
Thonon, Bénédicte ULg; Pletinx, Amandine; Grandjean, Allison et al

in Journal of Behavior Therapy and Experimental Psychiatry (2016), 50

Background and Objectives: Stereotypes about schizophrenia may lead to prejudicial attitudes and discrimination with debilitating effects on people diagnosed with schizophrenia. There is thus a need to ... [more ▼]

Background and Objectives: Stereotypes about schizophrenia may lead to prejudicial attitudes and discrimination with debilitating effects on people diagnosed with schizophrenia. There is thus a need to develop interventions aiming to prevent, reduce or eliminate such stereotypes. The aim of this study was to evaluate the effects of a documentary film on schizophrenia on cognitive, affective and behavioural aspects of stigmatisation. Methods: Forty-nine participants were assessed on measures of stereotypes and social distance, and on the Model of Stereotype Content, which includes measures of stereotypes, emotional reactions and behavioural tendencies. Participants were randomly assigned into either a condition in which they viewed the documentary film (Film group), or into a control condition in which no intervention was conducted (Control group). Results: Only participants in the Film group revealed a significant decrease of negative stereotypes (Dangerousness and Unpredictability) and desired Social distance, and a significant increase in the perception of sociability in persons with schizophrenia. Limitations: Small sample size and its reduced generalizability are the main limitations in this study. Conclusions: These findings suggest that a documentary film promoting indirect contact with people diagnosed with schizophrenia is a promising tool to prevent and reduce stigmatisation regarding schizophrenia. [less ▲]

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See detailMobilité pastorale au Sahel et en Afrique de l’Ouest : essai de synthèse
HIYA MAIDAWA, Moustapha; Andres, Ludovic ULg; yamba, boubacar et al

Conference (2016, January)

La mobilité pastorale joue un rôle important dans la vie socio-économique des populations au Sahel et en Afrique de l’Ouest. Cependant, à travers la littérature, on perçoit la mobilité comme responsable ... [more ▼]

La mobilité pastorale joue un rôle important dans la vie socio-économique des populations au Sahel et en Afrique de l’Ouest. Cependant, à travers la littérature, on perçoit la mobilité comme responsable de la dégradation de l’environnement, l’émission de gaz à effet de serre, la désertification, la faible performance économique, etc. (AUBREVILLE A, 1949 ; HUBERT H, 1920; LAMPREY H, 1975). Toutefois, à partir de la fin des années 1990 un nouvel regard s’est orienté vers l’élevage mobile avec son rôle dans la lutte contre la désertification et le maintien de la biodiversité (BOURBOUZE A. et al, 2002 ; EL AICH A, WATERHOUSE A, 1999). Cette synthèse bibliographique tente de dégager le rôle et la place de la mobilité pastorale dans la vie socio-économique et environnementale au Sahel et en Afrique de l’Ouest. De plus, cette synthèse fait ressortir le lien entre la mobilité et les mutations foncières que vivent le pastoralisme et la mobilité au Sahel. [less ▲]

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See detailUne forme compliquée d'hypercalcémie hypocalciurique familiale
Potorac, Iulia ULg; BETEA, Daniela ULg; MALAISE, Olivier ULg et al

in Abstract book - Symposium "Perspectives in Endocrinology" (2016, January)

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See detailThe genetic causes of pituitary gigantism
Rostomyan, Liliya ULg; Lysy, P; Desfilles, C et al

in Abstract book - Symposium "Perspectives in Endocrinology" (2016, January)

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See detailComment de futurs enseignants du secondaire supérieur en psychologie et sciences de l’éducation apprennent à évaluer les apprentissages
Francois, Nathalie ULg; Noël, Stéphanie ULg

Conference (2016, January)

Cette communication exposera le dispositif mis en place dans le cadre d’une formation d’enseignants du secondaire supérieur en psychologie et sciences de l’éducation pour amener les étudiants à acquérir ... [more ▼]

Cette communication exposera le dispositif mis en place dans le cadre d’une formation d’enseignants du secondaire supérieur en psychologie et sciences de l’éducation pour amener les étudiants à acquérir des compétences d’évaluation des apprentissages. Ces futurs agrégés effectuent des stages dans l’enseignement général mais également dans l’enseignement professionnalisant. Dans ce dernier, ils s’adressent essentiellement à des élèves inscrits dans des formations à des métiers de l’interaction humaine (éducateurs, puéricultrice, animateur, aide familiale…) et sont donc amenés à développer et à évaluer des compétences professionnelles. Lors d’un premier module préparant au stage au sein de l’enseignement général, les futurs enseignants (FE) sont invités, au sein du cours de didactique disciplinaire, à découvrir selon des démarches inductives, les trois grandes familles de tâches du métier d’enseignant : préparer une séquence de cours, gérer un microenseignement, évaluer les apprentissages. Pour cette troisième famille de tâches, les FE vont s’essayer tout d’abord à l’élaboration d’une évaluation de contenus sur base de leur microenseignement. Dans un second temps, ils sont confrontés à l’évaluation d’une tâche complexe. Une mise en situation leur permet de jouer le rôle d’un enseignant en sciences humaines qui évalue une revue de presse présentée oralement par des personnes qui endossent le rôle d’élèves (par le biais de capsules vidéo). Ces mises en situation permettent ensuite, sur la base des notes attribuées et des critères et indicateurs élaborés, de débattre de l’évaluation, de ce qu’elle recouvre et du cadre théorique qui permet de la soutenir (validité, cohérence, objectivité, critères) (Beckers, 2011). Lors du second module consacré à la préparation du stage dans l’enseignement qualifiant, les FE sont invités à évaluer et annoter des copies authentiques d’élèves futurs agents d’éducation. Cette troisième mise en situation est à nouveau l’occasion de discuter des critères et indicateurs d’évaluation mais également de sa fonction régulatrice (Beckers, 2007). [less ▲]

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See detailRapport d'activité 2015 de la convention de recherche : "DEPITRIM : Detection, control measures and impact study of Epitrix in Belgium"
Maes, Martine; Jansen, Jean-Pierre; De Clercq, Patrick et al

Report (2016)

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See detailReappraisal of the deep Devonian strata under the Mons Basin
Licour, L.; Dupont, N.; Swennen, R. et al

Conference (2016, January)

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See detailL’infraction d’obstacle à la surveillance sous le spectre du droit au silence et du droit de ne pas s’auto-incriminer
Michiels, Olivier ULg; Falque, Géraldine ULg

in Orientations : la Revue du Droit Social et de la Gestion du Personnel (2016), (2006/1), 2-11

L'article fait le point sur le contrôle de l’application des lois sociales par les inspecteurs sociaux et le délit d’obstacle à la surveillance envisagé sous l'angle du droit au silence et du droit de ne ... [more ▼]

L'article fait le point sur le contrôle de l’application des lois sociales par les inspecteurs sociaux et le délit d’obstacle à la surveillance envisagé sous l'angle du droit au silence et du droit de ne pas s'auto-incriminer. Il envisage encore la cohabitation entre le délit d'obstacle et le droit au silence sous l’angle de la jurisprudence de la Cour européenne des droits de l’homme et du droit interne. [less ▲]

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See detailCROSSROADS janvier 2016
Sacré, Robert ULg

Diverse speeche and writing (2016)

Magazine sonore; Histoire du blues ; séquences R&B, Soul, Zydeco, Gospel, jazz,... Nouveaux disques

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See detailLa fidélité d'implantation du financement basé sur les résultats au Burkina Faso après 12 mois
Bodson, Oriane ULg; Barro, Sie Ahmed; Turcotte-Tremblay, Anne-Marie et al

Diverse speeche and writing (2016)

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See detailExperimental nonlinear identification of an aircraft with bolted connections
De Filippis, Giovanni; Noël, Jean-Philippe ULg; Kerschen, Gaëtan ULg et al

in Proceedings of the International Modal Analysis Conference (IMAC) XXXIII (2016, January)

Aircraft structures are known to be prone to nonlinear phenomena, especially as they constantly become lighter and hence more flexible. One specific challenge that is regularly encountered is the modeling ... [more ▼]

Aircraft structures are known to be prone to nonlinear phenomena, especially as they constantly become lighter and hence more flexible. One specific challenge that is regularly encountered is the modeling of the mounting interfaces between aircraft subcomponents. Indeed, for large amplitudes of vibration, such interfaces may loosen and, in turn, trigger complex mechanisms such as friction and clearances. In this context, the present work intends to investigate the nonlinear dynamics of the Morane–Saulnier Paris aircraft, accessible at ONERA. This aircraft possesses multiple bolted connections between two external fuel tanks and wing tips. The objective of the paper is specifically to carry out an adequate identification of the numerous nonlinearities affecting the dynamics of this full-scale structure. Nonlinearity detection and the subsequent subspace-based parameter estimation have been performed on experimental data, collected during an on-ground test campaign. Nonlinearity detection is first achieved by the comparison of frequency response functions estimated at low excitation level, with those obtained at high amplitude level, yielding insight towards accurately characterizing the behavior of the bolted connections. Then, a nonlinear subspace identification method is applied to measured data to estimate the linear and nonlinear parameters of the structure and novel strategies and tools that overcome specific arisen problems are developed. [less ▲]

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See detailCustoms and Catch-All implementation: Catch-All Controls -Theory and Practice
Chatelus, Renaud ULg

Conference given outside the academic context (2016)

This paper presents the main issues of the enforcement of "catch all" close in export control regulations and specifically in relations to customs processes in the context of Mexico

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See detailSingle molecule force spectroscopy on synthetic foldamers
Devaux, Floriane ULg; Li, Xuesong; Ivan, Huc et al

Poster (2016, January)

Inspired by the many folded conformations of the molecular machineries responsible for chemical reactions and mechanical tasks in nature, such as enzyme catalysis and duplication in nucleic acids ... [more ▼]

Inspired by the many folded conformations of the molecular machineries responsible for chemical reactions and mechanical tasks in nature, such as enzyme catalysis and duplication in nucleic acids, chemists have been developing the syntheses of artificial folded molecular architectures, namely foldamers (Guichard and Huc, 2011). The investigation of these molecules using AFM-based Single Molecule Force Spectrosocopy (SMFS) allows the elucidation of both mechanochemical properties and conformational dynamics on the unimolecular scale in solution. The stepwise synthesis of aromatic oligoamide-based foldamers was designed (Jiang et al., 2003; Huc, 2004) to produce well-defined helically-folded molecular architectures. A poly(ethylene oxide) PEO tether was coupled to one end of the foldamer. This tether design enables the coupling with the AFM tip and increases the number of potentially accessible physicochemical parameters through SMFS experiments. SMFS pulling experiments on this system yielded specific and reproducible force-extension patterns characteristic of single foldamers. Those patterns were further analyzed to determine unfolding forces and dynamics as well as to propose mechanistics hypotheses of the unfolding process. Several helical foldamers presenting variable lengths were considered. Experiments in multiple solvents pointed out a variation in the foldamer stability, leading to different average forces values. This last study enabled us to modulate the intramolecular interactions responsible for the folding and to evaluate the mechanochemical properties of the helix. The force values measured for those foldamers are higher than those previously measured in natural biopolymers (Clausen-Schaumann et al., 2000; Janshoff et al., 2000), showing a high stability under a load and a propensity for the development of emergent properties. In addition, the increased stability of these aromatic oligoamide foldamers was confirmed by the observation of almost instantaneous reversibility of the unfolding under load. [less ▲]

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