References of "Scientific congresses and symposiums"
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See detailInferring causal relationships using information-theoretic measures
Olsen, Catharina; Meyer, Patrick ULg; Bontempi, Gianluca

Conference (2009)

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See detailOriginal cromakalim analogues as KATP channel openers
Florence, Xavier ULg; De Tullio, Pascal ULg; Pirotte, Bernard ULg et al

in Metabolic and Functional Research on Diabetes (2009), 2

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See detailFalse memories and surprise: Round #3
Willems, Sylvie ULg; Dehon, Hedwige ULg

Poster (2009)

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See detailDevelopment of a practical test of insulin resistance in obese Beagle dogs and effects of sc FOS
Daumas, Caroline; Lhoest, Estelle; Hornick, Jean-Luc ULg et al

in Mussa, P. P.; Nery, J.; Schiavone, A. (Eds.) et al Congress Proceedings 13t h Congress of the ESVCN (2009)

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See detailRecent results for the Belgian Magdalenian
Miller, Rebecca ULg; Noiret, Pierre ULg

in Street, Martin; Barton, Nick; Terberger, Thomas (Eds.) Humans, environment and chronology of the late glacial of the North European Plain (2009)

This paper presents the Belgian Magdalenian from the perspective of recent results from the cave site of Trou Da Somme, placing it in relation to the other known Belgian Magdalenian sites, including caves ... [more ▼]

This paper presents the Belgian Magdalenian from the perspective of recent results from the cave site of Trou Da Somme, placing it in relation to the other known Belgian Magdalenian sites, including caves in Middle Belgium (Chaleux, Bois Laiterie, Goyet, etc.) and open-air sites in Flanders (Orp, Kanne). Emphasis is placed on site function, chronology and lithic raw material procurement. Additionally, an engraved plaquette found at Trou Da Somme will be discussed. [less ▲]

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See detailVariability of major fatty acid contents in Luxembourg dairy cattle
Soyeurt, Hélène ULg; Arnould, Valérie ULg; Dardenne, Pierre et al

in Book of Abstracts of the 60th Annual Meeting of the European Association for Animal Production (2009)

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See detailDu cœur au monde. L'espace des jésuites
De Marco, Rosa ULg

Conference (2009)

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See detailFarming systems in the sandy area of the Thua Thien Hue Province, Central Vietnam, survey of socio-economic situation and constraints identified by farmers
Pham Khanh, Tu; Hoang Thi Thai, Hoa; Hoang Nghia, Duyet et al

in Improving food crop productivity in the coastal sandy area of the Thua Thien Hue Province Central Vietnam : Vietnam-Belgium interuniversity project 2004-2009 (2009)

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See detaile-Demos, We'll Show You What We've Got !"
Lecomte, Béatrice ULg

Conference (2009)

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See detailIdentification and Quantification of Metabolites in a Human Plasma Standard Reference Material by Multiple Mass Spectrometry Methods
Dodder, Nathan; Barak, Ruth; Eppe, Gauthier ULg et al

in ASMS Conference on Mass Spectrometry and Allied topics (2009)

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See detailExperimental study of a river biofilm growth on artificial cobbles in contrasted flow conditions
Moulin, F.; Peltier, Yann ULg; Pen, C. et al

in International Workshop on Environmental Hydraulics (2009)

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See detailTransinusoidal portal vein embolisation with Onyx: feasibility study in pigs
Smits; Hav; Vanlengenhoeve et al

Poster (2009)

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See detailLe supériorat au féminin au temps de la Réforme catholique : conception et exercice du pouvoir dans quelques couvents de religieuses à vœux solennels
Henneau, Marie-Elisabeth ULg

in Santinelli, Emmanuelle; Dubois-Nayt, Armel (Eds.) Femmes de pouvoir et pouvoir de femmes dans l’Europe occidentale médiévale et moderne (2009)

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See detailSeismic behaviour of steel storage racking systems
Castiglioni, C. A.; Carydis, P.; Negro, P. et al

in Proceedings of the STESSA 2009 Conference (2009)

At present, there are technical limitations in the field of safety and design of storage racks in seismic areas. To solve some of these limitations, the EU sponsored through the Research Fund for Coal and ... [more ▼]

At present, there are technical limitations in the field of safety and design of storage racks in seismic areas. To solve some of these limitations, the EU sponsored through the Research Fund for Coal and Steel an RTD project titled “Storage Racks in Seismic Areas” (acronym SEISRACKS). This paper describes the main research activities and obtained results of the project, initiated in December 2004 and terminated in June 2007. [less ▲]

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See detailDans le "Gyron" de Marguerite de Croy, comtesse de Lalaing (1508-1549)
Adam, Renaud ULg

in Adam, Renaud; Marchandisse, Alain (Eds.) Le livre au fil de ses pages : actes de la 14e journée d'étude du réseau de médiévistes belges de langue française, Université de Liège, 18 novembre 2005 (2009)

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See detailModal analysis of a nonlinear structure with cyclic symmetry
Peeters, Maxime ULg; Viguié, Régis ULg; Kerschen, Gaëtan ULg et al

in 27th International Modal Analysis Conference, Orlando, 2009 (2009)

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See detailRéponse à Harm Pinkster: Relatieve bijzinnen in het Latijn
Longrée, Dominique ULg

Conference (2009)

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See detailSimulation de l’écoulement dans des filtres à charbons actifs par la méthodologie des réseaux de Boltzmann
Verdin, Emeline ULg; Beugre, Djomice Antoine ULg; Ania, Conchi et al

in SFGP (Ed.) Récents Progrès en Génie des Procédés - N°98 - A la croisée des sciences et des cultures pour relever les défis industriels du XXIème siècle - Actes du 12ème Congrès de la Société Française de Génie des Procédés, Marseille, France, 14-16 octobre 2009 (2009)

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See detailMineralogy and petrography of phosphate minerals from Sapucaia and Boca Rica pegmatites, Minas Gerais, Brazil
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, Simon et al

in Estudios Geologicos (2009), 19(2), 47-51

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See detailTowards a participative tool of decision-making aid as regards retail location-International Conference of Territorial Intelligence, Besançon 2008
Merenne-Schoumaker, Bernadette ULg; Devillet, Guénaël ULg; Jaspard, Mathieu ULg et al

in Papers on Tools and methods of Territorial Intelligence (2009)

Retail activities are more and more regulated. This regulation requires efficient management and decision support tools. In this framework, the University of Liège, in Belgium, work to implement this kind ... [more ▼]

Retail activities are more and more regulated. This regulation requires efficient management and decision support tools. In this framework, the University of Liège, in Belgium, work to implement this kind of tool on the Walloon Region. In this tool, a cartographic interface allows to locate, analyse and quantify retail supply.The interactive and multidimensional tool makes the diagnosis of a reference territory (the market area of a retail project) while permitting the implementation of a participative space regrouping the actors at least at two scales:intra communal and supra communal improving the governance in this sector. [less ▲]

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See detailModelling and Simulation of Rat Swimming in a Water Maze Experiment
Fey, D.; Commins, Séan; Bullinger, Eric ULg

Poster (2009)

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See detailWater and related chemistry in the Solar System. A Guaranteed Time Key Programme for Herschel
Hartogh, P.; Crovisier, J.; Lellouch, E. et al

in EPSC Abstracts 2009 (2009)

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See detailSlope stability analyses in loess deposits in Fergana Valley (Kyrgyzstan)
Mamyrova, Raushan; Bourdeau, Céline; Havenith, Hans-Balder ULg et al

Conference (2009)

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See detailImproving the seismic robustness of reinforced concrete frames by using locally hybrid steel-concrete columns
Degée, Hervé ULg; Plumier, André ULg

in Proceedings of the STESSA 2009 Conference (2009)

The proposed concept consists in placing a steel profile with limited size inside the reinforced concrete column of the first level of the building. This profile is not considered for the design and is ... [more ▼]

The proposed concept consists in placing a steel profile with limited size inside the reinforced concrete column of the first level of the building. This profile is not considered for the design and is essen-tially assumed to act as a safety belt activated only in case of deficiencies of the concrete under earthquake action, providing thus the requested robustness and limiting the risk of soft-storey mechanisms even in the most unfavorable conditions. Theoretical, experimental and numerical investigations summarized in the pre-sent contribution are aiming at demonstrating the efficiency of the concept. [less ▲]

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See detailSpécification géométrique des concepts architecturaux dans le cadre de la thermique du bâtiment
Juchmes, Roland ULg; Delfosse, Vincent ULg; Safin, Stéphane ULg et al

in Tidafi, T.; Dorta, T. (Eds.) Joindre langages, cultures & visions (2009)

Cette étude s’intéresse à l’assignation des propriétés technologiques des parois dans un modeleur architectural 3D. Nous proposons une méthode originale basée sur le principe de groupements sémantiques de ... [more ▼]

Cette étude s’intéresse à l’assignation des propriétés technologiques des parois dans un modeleur architectural 3D. Nous proposons une méthode originale basée sur le principe de groupements sémantiques de faces par requêtes géométriques. Nous décrivons la méthode et les résultats d’entretiens menés auprès d’architectes pour identifier les groupements pertinents, listons les requêtes géométriques simples pour la sélection de ces groupements et rendons compte de l’efficacité de la méthode sur un cas. Nous concluons sur les avantages et limites de l’approche. [less ▲]

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See detailMorphological and mechanical characterization of Ti6Al4V scaffolds produced with selective laser melting
Van Bael, Simon; Kerckhofs, Greet ULg; Moesen, Maarten et al

in Proc. ECCOMAS - International Conference on Tissue Engineering 2009. . 2009, Bártolo, P. (Eds.) (2009)

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See detailCharacterising urban morphology with spectral unmixing and spatial metrics: a case study on Dublin
Canters, Frank; Van de Voorde, Tim; Binard, Marc ULg et al

in Proceedings of the 24th International Cartographic Conference (ICC 2009), (2009)

In today’s urbanising world, effective urban management and planning strategies are needed to temper the impact of urban change processes on the natural and human environment. To develop and monitor such ... [more ▼]

In today’s urbanising world, effective urban management and planning strategies are needed to temper the impact of urban change processes on the natural and human environment. To develop and monitor such strategies, and to assess their spatial impact, analysing changes in urban structure is essential. Data from earth observation satellites provide regular information on urban development and, as such, may contribute to the mapping and monitoring of cities and the modelling of urban dynamics. Especially images of medium resolution (Landsat, SPOT, …), which are cheap, widely available and often part of extensive historic archives, offer a wealth of information that may be useful for urban monitoring purposes. The lower resolution of this type of imagery, however, hampers the study of urban morphology and change processes at a more detailed, intra-urban level. Spectral unmixing approaches, which allow characterising land-cover distribution at sub-pixel level, may partly compensate for this lack of spatial detail, and may render medium-resolution imagery more useful for urban studies. The main research question addressed in this paper is how medium-resolution imagery could be used to describe urban morphology, by combining spectral unmixing approaches with spatial metrics. Spatial metrics derived from satellite imagery may be useful to quantify structural characteristics of expanding cities, and may provide indications of functional land use. In this study, we develop a set of urban metrics for use on continuous sealed surface data produced by sub-pixel classification of Landsat ETM+ imagery. Two sub-pixel classification approaches are examined for that purpose. In a first approach, we use a linear spectral mixture model with a vegetation and a non-vegetation endmember to deconvolve each pixel’s spectrum into fractional abundances of the two end member spectra, which are determined by visualising mixture space with principal component analysis. In a second approach, we use a linear regression model to estimate the proportion of vegetation cover within each Landsat pixel. In both approaches, an urban mask is used to indicate pixels belonging to urban land cover. Only pixels within the urban mask are subjected to sub-pixel classification. We hereby assume that the urban area does not contain bare soil and that the area of a pixel not covered by vegetation fully consists of sealed surface cover. The resulting sealed surface proportion map is then used to characterise urban morphology and land use by means of the shape of the cumulative frequency distribution of the estimated sealed surface fractions within a building block. A transformed logistic function is fitted to this distribution with a least-squares approach to obtain function parameters that are used as variables in a supervised classification approach, together with spatially explicit metrics (spatial variance and Moran’s I). Our study demonstrates that images from medium resolution sensors can be used to characterise intra-urban morphology, and that the structure of a building block as described by the proposed metrics gives an indication of its membership to certain morphological/functional urban classes. In future research we will incorporate socio-economic data in the metric analysis to further improve the distinction of urban land-use categories. The spatial metrics approach developed in this study will be used in experiments to improve the calibration of the MOLAND urban growth model, which is currently calibrated with historical land-use maps available for approximately 10-year intervals. [less ▲]

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See detailEcological modeling and paedomorphosis: a study case in Montenegrin newts
Denoël, Mathieu ULg; Ficetola, Gentile; Cirovic, Rusa et al

Poster (2009)

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See detailInteraction of nanoparticles for drug delivery with biomimetic model membranes
Frost, Rickard; Cerda, Bernadino; Grandfils, Christian ULg et al

Poster (2009)

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See detailModerator : Prosthetic Session
Van Heusden, Alain ULg

Conference (2009)

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See detailA coupled two-scale computational approach for quasi-brittle out-of-plane structural failure
Mercatoris, Benoît ULg; Massart, Thierry J.

Conference (2009)

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See detailDesign of a Stable Lagrange Multiplier Space for Stiff Boundary Conditions
Béchet, Eric ULg; Moës, Nicolas; Wohlmuth, Barbara

in Zilian, A.; Fries, T. P. (Eds.) International Conference on Extended Finite Element Methods – Recent Developments and Applications XFEM 2009 (2009)

We introduce a new algorithm to define a stable Lagrange multiplier space to impose stiff interface conditions within the context of the eXtended Finite Element Method. In contrast to earlier approaches ... [more ▼]

We introduce a new algorithm to define a stable Lagrange multiplier space to impose stiff interface conditions within the context of the eXtended Finite Element Method. In contrast to earlier approaches, we do not work with an interior penalty formulation as, e.g., for Nitsche techniques, but impose the constraints weakly in terms of Lagrange multipliers. The new algorithm allows a local construction of the Lagrange multiplier space while improving the accuracy of the computed fields. The originality of this approach with regard to former approaches lies in the use of the trace of primary shape functions defined on the domain, and a simplified procedure to define the mesh on the interface. Moreover, the newly constructed Lagrange multiplier space satisfies, in contrast to the naive approach, a uniform inf-sup condition. [less ▲]

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See detailRecovery of ionic liquids in tailor-made fuel process
Abels, Christian; Melin, Thomas; Kröckel, Jan et al

Conference (2009)

Extraction and membrane process can be useful for the separation of ionic liquid from impurities. The partition coefficient of model compounds between ionic liquid and organic phase was determined at ... [more ▼]

Extraction and membrane process can be useful for the separation of ionic liquid from impurities. The partition coefficient of model compounds between ionic liquid and organic phase was determined at various conditions. The principal effect of high viscosity on extraction behaviour was estimated with polyethyle glycol in water. Different nanofiltration membranes were screened for the stability towards ionic liquids and for the separation of water from ionic liquids. [less ▲]

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See detailReptile cell cultures for nucleolar studies
Lamaye, Françoise; Thiry, Marc ULg

Poster (2009)

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See detailEffects of intraovarian application of insulin-like growth factor-1 (IGF-1) on the superovulatory response of diary cattle.
Velazquez, M. A.; Hadeler, K. G.; Beckers, Jean-François ULg et al

in Reproduction in Domestic Animals (2009), 44(S1), 38

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See detailDigimat Material eXpert – From the Material Lab to the Efficient and Optimal Design of Reinforced Plastic Parts
Depouhon, Alexandre ULg; Lepage, Séverine; Assaker, Roger

in Proceedings of EnginSoft International Conference 2009, CAE Technologies for Industry (2009)

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See detailHydro-mechanical modeling of damage due to underground excavation in hardened clay
Levasseur, Séverine ULg; Collin, Frédéric ULg; Frieg, Bernd et al

in Pietruszczak, Stan; Pande, Gyan; Tamagnini, Claudio (Eds.) et al Computational Geomechanics (2009)

A zone with significant irreversible processes and significant changes in flow and transport properties is expected to be formed after underground excavations. The perturbation of the excavation could ... [more ▼]

A zone with significant irreversible processes and significant changes in flow and transport properties is expected to be formed after underground excavations. The perturbation of the excavation could lead to a significant increase of the permeability, related to diffuse and/or localized crack proliferation in the material. The main objective of the study is to model these processes at large scale in order to assess their impacts on the performance of radioactive waste geological repositories. This paper concerns more particularly the hydro-mechanical modeling of a long term dilatometer experiment performed in Mont Terri Rock Laboratory in Switzerland. The proposed model defines the permeability as a function of the aperture of the cracks that are generated during the excavation. With this model, the permeability tensor becomes anisotropic. These developments are validated with the results of the experiment. [less ▲]

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See detailSmart Sensors and MEMS for all over Industrial Application Niches
Saint-Mard, Michel ULg; Heusdens, Bruno ULg; Haudry, Fabrice ULg et al

in Smart Systems Integration (2009)

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See detailCombiner les mesures métaboliques cérébrales et neuropsychologiques permet une meilleure prédiction de la conversion vers une maladie d’Alzheimer chez les patients MCI
Bastin, Christine ULg; Adam, Stéphane ULg; LEKEU, Françoise ULg et al

in Revue Neurologique (2009), 165

Introduction. Une voie de recherche neurologique importante concerne la capacité de prédire sur base de l’évaluation initiale des patients avec Mild Cognitive Impairment (MCI) ceux qui vont développer une ... [more ▼]

Introduction. Une voie de recherche neurologique importante concerne la capacité de prédire sur base de l’évaluation initiale des patients avec Mild Cognitive Impairment (MCI) ceux qui vont développer une maladie d’Alzheimer (MA). Parmi les tests neuropsychologiques, le rappel indicé avec indiçage congruent lors de l’encodage et du rappel (RI48) apparaît comme le meilleur prédicteur du devenir des patients MCI (Ivanoiu et al., 2005). D’autre part, on a montré que les mesures métaboliques cérébrales (TEP-FDG), plus particulièrement l’hypométabolisme du cortex temporopariétal, prédit le déclin cognitif global dans le MCI mieux que des mesures neuropsychologiques (Chételat et al., 2005). Le but de notre étude était d’évaluer le pouvoir de prédiction pour la conversion du MCI vers une MA de deux prédicteurs robustes (performance au RI48 et métabolisme cérébral) pris soit isolément soit ensemble. Méthode. 50 patients MCI ont subi un examen en TEP-FDG au repos et ont réalisé le test de rappel indicé RI48 et le MMSE. Au terme d’un suivi neuropsychologique de 36 mois, 28 patients ont évolué vers une MA et 22 sont restés stables. Le métabolisme cérébral et les performances cognitives ont été comparés entre « convertisseurs » et MCI-stables. Des analyses discriminantes ont ensuite permis d’évaluer la capacité de classification de l’âge, du MMSE et des mesures métaboliques et mnésiques considérés individuellement ou selon diverses combinaisons. Résultat. Par comparaison avec les MCI-stables, les « convertisseurs » montraient un hypométabolisme du cortex temporal moyen bilatéralement, du cortex pariétal inférieur droit et du précuneus droit, et de plus faibles performances initiales au RI48. Prises individuellement, les différentes mesures permettaient le même taux de classification correcte (métabolisme cérébral = 76%, RI48 = 76%). L’âge et le MMSE étaient de faibles prédicteurs (exactitude de classification = 62% et 66% respectivement). Par contre, la combinaison des mesures métaboliques et des scores au RI48 prédisaient le mieux la progression vers la MA (88%). Conclusion. Les résultats suggèrent que la stratégie optimale pour identifier quels patients MCI ont plus de risque de développer une MA est de combiner les mesures métaboliques cérébrales et la performance à un test de mémoire très sensible. [less ▲]

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See detailGerminal centre innervation of bovine and human tonsils related to prion diseases.
Defaweux, Valérie ULg; Dorban, Gauthier; Antoine, Nadine ULg et al

in Brain, Behavior & Immunity (2009), 23(1), 10

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See detailDynamically constrained ensemble perturbations. Application to tides on the West Florida Shelf
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Beckers, Jean-Marie ULg et al

Conference (2009)

A method is presented to create an ensemble of perturbations that satisfies linear dynamical constraints. A cost function is formulated defining the probability of each perturbation. It is shown that the ... [more ▼]

A method is presented to create an ensemble of perturbations that satisfies linear dynamical constraints. A cost function is formulated defining the probability of each perturbation. It is shown that the perturbations created with this approach take the land-sea mask into account in a similar way as variational analysis techniques. The impact of the land-sea mask is illustrated with an idealized configuration of a barrier island. Perturbations with a spatially variable correlation length can be also created by this approach. The method is applied to a realistic configuration of the West Florida Shelf to create perturbations of the M2 tidal parameters for elevation and depth-averaged currents. The perturbations are weakly constrained to satisfy the linear shallow-water equations. Despite that the constraint is derived from an idealized assumption, it is shown that this approach is applicable to a non-linear and baroclinic model. The amplitude of spurious transient motions created by constrained perturbations of initial and boundary conditions is significantly lower compared to perturbing the variables independently or to using only the momentum equation to compute the velocity perturbations from the elevation [less ▲]

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See detailThe Belgian Marine Mammal Biobank: a tool to stimulate tissue exchange
Jauniaux, Thierry ULg; De Cauwer, Karien; De Winter, Johan et al

in Annual report (2009)

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See detailAn Extra-trees-based Automatic Target Recognition Algorithm
Pisane, Jonathan ULg; Marée, Raphaël ULg; Ries, Philippe ULg et al

in To appear in Proc. International Radar Conference (2009)

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See detailL'efficacité de l'ibandronate oral mensuel est maintenue sur 5 ans : l'étude MOBILE extension long terme (ELT)
Chapurlat, R.; Felsenberg, F.; Reginster, Jean-Yves ULg

in Revue du Rhumatisme (2009)

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See detailThe post-harvest quality of bananas is determined by pre-harvest factors
de Lapeyre de Bellaire, Luc; Chillet, Marc; Lassois, Ludivine ULg et al

Poster (2009)

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See detailLes clauses exonératoires ou limitatives de responsabilité insérées dans les conditions générales: leurre ou évidence?
Kohl, Benoît ULg; Grisard, Delphine ULg

in Les conditions générales - Questions particulières (2009)

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See detailFigure della violenza nella tradizione arturiana in prosa
Morato, Nicola ULg

in Praloran, Marco; Romano, Serena; Bucchi, Gabriele (Eds.) et al Figura e racconto. Narrazione letteraria e narrazione figurativa in Italia dall'antichità al Primo Rinascimento. Atti del convegno di studi (Lausanne 8-10 novembre 2005) (2009)

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See detailAdjoint Equations and Error Measure in Radiative Heat Transfer with Diffuse Reflection
Vueghs, Pierre ULg; Rochus, Pierre ULg

in Proceedings of the ASME 2009 Heat Transfer Summer Conference HT2009 (2009)

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See detailLes tribulations du Grand Bâtard Antoine de Bourgogne en Italie (1475)
Marchandisse, Alain ULg; Masson, Christophe ULg

in Publication du Centre Européen d'Etudes Bourguignonnes (2009), XLIX

During his Italian journey, which aimed at confirming to Ferrante of Aragon, king of Naples, his elevation to the title of knight of the Golden Fleece, the Bastard Antoine multiplied the visits, the ... [more ▼]

During his Italian journey, which aimed at confirming to Ferrante of Aragon, king of Naples, his elevation to the title of knight of the Golden Fleece, the Bastard Antoine multiplied the visits, the contacts, in Savoy, in Milan twice, in Naples, in the papal court, in Florence, in Venice and in Ferrare. He revealed himself a very pleasant person everywhere he stayed and, in return, was welcomed with the greatest consideration. Whatever may have been, in the name of his brother, the diplomatic relations struck up by the Bastard with the Italian sovereigns, and whatever design they had, either creating an irrepressible strike force against France, or stirring up the most stunning of coalitions against its king by the conclusion of a most politically profitable marital union or by the gift of the Golden Fleece, even if Antoine was able to recruit a few soldiers and weapons, since they took place while the siege of Neuss was dragging on miserably, all these attempts remained in vain in fine. In 1482, the Estates of Burgundy fell to a child and Marie de Bourgogne left behind her a political situation as delicate as the one who prevailed before Sixte IV offered Antoine, by legitimizing him, the dynastic capacity to reign. [less ▲]

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See detailPierre-Augustin Guys à Constantinople: un regard méconnu sur le Levant à la fin du XVIIIe siècle
Famerie, Etienne ULg

in Droixhe, Daniel; Collart, Muriel (Eds.) L'"Esprit des journaux": un périodique européen au XVIIIe siècle (2009)

Guys' original approach and description of the contemporaneous Greek people, breaking a new ground in favour of the philhellenic movement in the end of 18th century

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See detailA coupled two-scale computational approach for quasi-brittle out-of-plane structural failure
Mercatoris, Benoît ULg; Massart, Thierry J.

Conference (2009)

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See detailA One-Field Discontinuous Galerkin Formulation of Non-Linear Kirchhoff-Love Shells
Noels, Ludovic ULg

Conference (2009)

Spatially-discontinuous Galerkin methods constitute a generalization of weak formulations, which allow for discontinuities of the problem unknowns in its domain interior. This is particularly appealing ... [more ▼]

Spatially-discontinuous Galerkin methods constitute a generalization of weak formulations, which allow for discontinuities of the problem unknowns in its domain interior. This is particularly appealing for problems involving high-order derivatives, since discontinuous Galerkin (DG) methods can also be seen as a means of enforcing higher-order continuity requirements. Recently, DG formulations of linear and non-linear Kirchhoff-Love shell theories have been proposed. This new one-field formulations take advantage of the weak enforcement in such a way that the displacements are the only discrete unknowns, while the C1 continuity is enforced weakly. The resulting one field formulation is a simple and efficient method to model thin structures and can be applied to various computational methods. [less ▲]

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See detailTests fractionnés de la capacité à réagir à des cas complexes en situation scolaire
Leclercq, Dieudonné ULg; Tooth, Alexandra; Delcomminette, Séverine ULg

in UCL (Ed.) Actes du Colloque (2009)

This testing design aims to assess, in a simulated way) a senior high school teacher competence that consists in being confronted with a problematic situation (a case) of school life that resort from ... [more ▼]

This testing design aims to assess, in a simulated way) a senior high school teacher competence that consists in being confronted with a problematic situation (a case) of school life that resort from educational psychology. In a first phase, data being insufficient, the teacher can merely elaborate a few explaining hypothesis. In a second phase, having obtained more information, he (she) can choose among a series of hypothesis the most likely one. In a third phase, if the hypothesis is confirmed, the teacher can imagine imagine his / her most appropriate reactions. In order to test simultaneously hundreds of students in the same amphitheatre, a series of sheets (formulas) are distributed, answered and then collected, additional information having ben provided in between two series of sheets. This explains the expression “fractionated”. [less ▲]

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See detailReal-time spatial analysis of root water uptake in rhizotrons
Lobet, Guillaume ULg; Javaux, M.; Pages, L. et al

Poster (2009)

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See detailReaching the schools
Nazé, Yaël ULg

Poster (2009)

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See detailOperational Determination of Multiqubit Entanglement Classes
Bastin, Thierry ULg

Conference (2009)

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See detailThe effects of purified Z- and E-guggulsterones from guggul-gum extract on human preadipocytes proliferation and differentiation through the study of gene expression of adipose markers.
Hanon, Emilien ULg; Keophiphath, Mayoura; Jacquemond-Collet, Ingrid et al

Poster (2009)

The rising prevalence of obesity within both industrialized and emerging societies is a major public health problem. Indeed obesity is a usual risk factor in the development of metabolic and ... [more ▼]

The rising prevalence of obesity within both industrialized and emerging societies is a major public health problem. Indeed obesity is a usual risk factor in the development of metabolic and cardiovascular diseases which nowadays rank among the highest causes of premature death. Therefore, modulating fat mass expansion represents a worldwide challenge. In this context, adipocyte differentiation, which corresponds to the cellular transition of a fibroblastic cell (the preadipocyte) to a highly specialized cell accumulating triglycerides (the adipocyte), is a decisive process in the expansion of adipose tissue during life span and consequently, in the development of obesity. Adipogenesis markers such as PPARg2, C/EBPa, lipoprotein lipase (LPL), perilipin (PLIN) and the adipokines (leptin and adinopectin) are known to be expressed throughout the different stages of adipocyte differentiation. Guggulsterones are the principal bioactive steroidal components found in the oleoresin (guggul gum) collected from the indian guggul tree, Commiphora mukul (Hook, ex Stocks) Engl. The objective of this study was to investigate the effects of the two purified diastereoisomeric forms of guggulsterones (Z- and E-) on the human preadipocytes proliferation and differentiation. [less ▲]

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See detailAssessment of periodic homogenisation-based multi-scale computational schemes for quasi-brittle structural failure
Mercatoris, Benoît ULg; Massart, T. J.

in Computational Plasticity X - Fundamentals and Applications (2009)

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See detailDevelopment of an active H maser: first results
Mandache, Cipriana ULg; Léonard, D.; Bastin, Thierry ULg

Conference (2009)

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See detailQuand les traditions culturelles cimentent une volonté d'exister : le cas des Wallons du Wisconsin
Lempereur, Françoise ULg

in Port Acadie : Revue Interdisciplinaire en Etudes Acadiennes = Port Acadie: An Interdisciplinary Review in Acadian Studies (2009), 13-14-15

In the middle of the XIXe century, thousands of Walloons left Belgium to settle in Wisconsin, USA. The article summarizes the cultural traditions of this little "marginal" group and considers the ... [more ▼]

In the middle of the XIXe century, thousands of Walloons left Belgium to settle in Wisconsin, USA. The article summarizes the cultural traditions of this little "marginal" group and considers the relevance of safeguarding cultural heritage as a positive ethnical fundament. [less ▲]

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See detailFootball, nationalisme et gouvernance
Tuñón, Jorge; Brey, Elisa ULg

Conference (2009)

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See detailFunctional analysis of an FLC-LIKE gene in root chicory
Périlleux, Claire ULg; Pieltain, Alexandra ULg; D'Aloia, Maria ULg et al

in Comparative Biochemistry and Physiology. Part A, Physiology (2009), 153A(2/Suppl.), 198-199

Vernalization is known to promote flowering in Arabidopsis thaliana by inhibiting the expression of a strong repressor: FLOWERING LOCUS C (FLC). The recent cloning of an FLC-LIKE gene in sugar beet (Beta ... [more ▼]

Vernalization is known to promote flowering in Arabidopsis thaliana by inhibiting the expression of a strong repressor: FLOWERING LOCUS C (FLC). The recent cloning of an FLC-LIKE gene in sugar beet (Beta vulgaris; BvFL1) and – here – in root chicory (Cichorium intybus; CiFL1) suggests the conservation of FLC biological function during evolution of eudicots. Hence physiological questions that remain difficult to address in Arabidopsis can be studied in other species. We investigated the correlation between CiFL1 expression and plant-age dependent responsiveness to vernalization. We also studied the effect of post-vernalization growing temperature, which can stabilize or erase the vernalized state. [less ▲]

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See detailTowards a system of territorial intelligence: geographical indicators and data for European actors
Breuer, Christophe ULg; Devillet, Guénaël ULg

in International Conference of Territorial Information. Papers on Tools and Methods of Territorial Intelligence. (2009)

This article deals with the realization of a territorial information gate for the European actors. It defines the sources of territorial information and the files allowing the cartography of the ... [more ▼]

This article deals with the realization of a territorial information gate for the European actors. It defines the sources of territorial information and the files allowing the cartography of the administrative and statistical cuttings. The acquisition cost of information is also putted forward. It establishes the link between the technical realization of an interactive interface of webmapping and the problem of the data and metadata management. [less ▲]

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See detailPhysicochemical characterization of fat blends related to margarine formulation
Danthine, Sabine ULg; Fernando Munoz, J; Cavillot, V et al

Poster (2009)

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See detailDer Lütticher Fürstbischof Ernst von Bayer als Musik-Mäzen (1580-1612)
Vendrix, Philippe ULg; Corswarem, Emilie ULg; Schiltz, Katelijne

in Pietschmann, Klaus (Ed.) Das Erzbistum Köln in der Musikgeschichte des 15. und 16. Jahrhunderts (2009)

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See detailGenetic structure of Barn swallow (Hirundo rustica).
Dardenne, Sophie ULg; Stevens, Virginie ULg; Hollander, F. et al

Poster (2009)

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See detailCharacterization of tap intensity for granular compaction
Ludewig, François ULg; Dorbolo, Stéphane ULg; Vandewalle, Nicolas ULg

in Powders and Grains 2009 (2009)

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See detailDéveloppement des filières Jatropha décentralisées au Sénégal
Terren, Marieke ULg; Saverys, S.; Jacquet de Haverskercke, P et al

Poster (2009)

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See detailTeacher's role, mathematical discourse between children and evolution of the first symbolizations : An analysis of a mathematical learning activity
Fagnant, Annick ULg

in Gomes, A. (Ed.) Elementary Mathematics Education. Proceedings of the 3rd Meeting/Matematica Elementar-Actas do 3 (2009)

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See detailNetwork organisation : the impact of dominant paradigms ?
Absil, Gaëtan ULg; Demarteau, Michel

in Archives of Public Health (2009), 67(Supplement 2), 66-67

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See detailShifting Towards Environment-Friendly Modes: Profiling Travelers using Q-Methodology
Cools, Mario ULg; Moons, Elke; Janssens, Brecht et al

in Proceedings of the 88th Annual Meeting of the Transportation Research Board (DVD-ROM) (2009)

Due to a variety of reasons, the previous century is characterized by an extraordinary growth in car use that has continued into the current century. This has resulted in serious environmental ... [more ▼]

Due to a variety of reasons, the previous century is characterized by an extraordinary growth in car use that has continued into the current century. This has resulted in serious environmental repercussions. Despite technological advancements, the externalities remain an ecological threat that can not be discarded by policy makers. Therefore, it is essential that policy makers focus on reducing car use and on stimulating the shift towards more environment-friendly transport modes. In this study, Q-methodology is adopted as the technique to segment people, and to ascertain which approaches and determinants matter to medium distance travel. Segmentation is important, as policy measures will be more efficient and effective if they are fine-tuned on specific target groups. The analysis revealed that four discourses preponderate the paradigm of environmentally sustainable transport: travelers who use public transport as a dominant alternative, car-dependent travelers, travelers with a positive perception of using public transport, and travelers with a preference for car use. Concerning rational, economic motives, individuals evaluate travel time reliability as most important. To increase the reliability policy makers should consider the use of separate bus lanes and traffic light manipulation. In addition, public transport can be made even more attractive, when costs of cars are made more variable by road or congestion charging. When the subjective motives are discussed, the differences between the different groups of travelers were more pronounced. Next to increasing the benefits of using public transport, policy makers should also pay attention to removing psycho-social barriers. [less ▲]

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See detailProduction of four amyloidogenic variants of human lysozyme as inclusion bodies in Escherichia coli
Dumont, Janice ULg; Menzer, Linda ULg; Scarafone, Natacha ULg et al

Poster (2009)

Six variants of human lysozyme (I56T, F57I, W64R, D67H, F57I/T70N and W112R/T70N) are associated with a hereditary non-neuropathic systemic amyloidosis. This disease involved an extra cellular deposition ... [more ▼]

Six variants of human lysozyme (I56T, F57I, W64R, D67H, F57I/T70N and W112R/T70N) are associated with a hereditary non-neuropathic systemic amyloidosis. This disease involved an extra cellular deposition of amyloid fibrils made of lysozyme variants in a wide range of organs such as liver, spleen and kidneys [1]. The characterisation at the molecular level of two variants, I56T and D67H, has shown that these mutations reduce the stability and more particularly the global cooperativity of the protein. Consequently, under physiologically relevant conditions, these variants can transiently populate a partially unfolded state in which the beta-domain and the C-helix are cooperatively unfolded while the rest of the protein remains native like [1]. The formation of intermolecular interactions between the regions that are unfolded in this intermediate state is likely to be a fundamental trigger of the aggregation process that ultimately leads to the formation and deposition of fibrils in tissues. In order to study the effects of the other amyloidogenic mutations on the properties of lysozyme and thus to get more insight in the mechanism of amyloid formation, it is necessary to produce them in large quantities. The D67H, I56T and F57I variants are currently produced in Aspergillus niger; the expression in this organism is, however, time consuming and the yield is very low. The attempts to use alternative systems such as Pichia pastoris [2], Saccharomyces cerevisiae, and Arabidopsis thaliana have not been conclusive so far. In this work, we have produced the four single-point lysozyme variants as inclusion bodies in Escherichia coli and explored the possibility to refold them. [1] Dumoulin & al., (2006) Acc. Chem. Res., 39, 603 - 610 [2] Kumita & al., (2006) FEBS J., 273, 711-720 [less ▲]

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See detailEquivalent mixed model for joint genetic evaluation considering molecular and phenotypic information
Gengler, Nicolas ULg; Colinet, Frédéric ULg

in Journal of Dairy Science (2009), 92(E-suppl.1), 315

Currently efforts are underway to introduce molecular information into genetic evaluation systems. A particular situation is genomic selection however simpler cases exists where major genes are known and ... [more ▼]

Currently efforts are underway to introduce molecular information into genetic evaluation systems. A particular situation is genomic selection however simpler cases exists where major genes are known and used by breeders. A new alternative strategy for the prediction of gene effects and especially their smooth integration into genetic evaluations based on an equivalent method was developed from existing theory. Underlying hypothesis were based on the idea that knowledge of genotypes will not affect overall additive genetic variance but only change expected values of genetic effects for animals with known genotypes. The developed equations were modified to allow that not all animals were genotyped. As the underlying mixed model is open a very large range of models can be used in situations including random regression models, multipletrait, maternal effects and multiple-across-country-evaluation models. Computations involved successive solving of two mixed models, with the use of an linear extrapolation to speed up convergence of gene effects. The method was tested for several known major genes and QTL, e.g. for the mh gene in the dual-purpose Belgian Blue population in Belgium. Modifications of the method could also be developed to be useful in the context of genomic selection. [less ▲]

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