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See detailDu Grand Monarque au Mouton Blanc. Souvenirs d'écrivains
Droixhe, Daniel ULg

in Droixhe, Daniel (Ed.) Spa, carrefour de l'Europe des Lumières. Les hôtes de la cité thermale au XVIIIe siècle, sous la dir. de Daniel Droixhe, avec la collaboration de Muriel Collart (2013)

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See detailDevelopment of organic farming in Wallonia : past, present and perspectives
Burny, Philippe ULg; Debode, Frédéric

in Lorencowicz, Edmund; Uziak, Jacek; Huyghebaert, Bruno (Eds.) VI International Scientific Symposium "Farm Machinery and Processes Management in Sustainable Agriculture" : Symposium Proceedings (2013)

Organic farming is today fully recognized as an alternative to conventional agriculture and its problems (water and air pollution, large use of pesticides and possible impacts on human health, vegetal and ... [more ▼]

Organic farming is today fully recognized as an alternative to conventional agriculture and its problems (water and air pollution, large use of pesticides and possible impacts on human health, vegetal and animal diseases, overproduction, ..) and is clearly supported by the Common Agricultural Policy and its "greening". Belgian (and Walloon) agriculture is an intensive one, with a high "labour force/agricultural area" ratio and high yields thanks to good soils, but also the use of large quantities of inputs like fertilizers and pesticides. However, organic farming increased in importance during the last years and th Walloon regional government has just launched a development plan in June 2013. So, this paper aims to analyse the evolution of organic farming in Wallonia and to present the goals and the measures of the new development plan. [less ▲]

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See detailExtension of Davenport's Background/Resonant decomposition for the estimation of higher response moments
Denoël, Vincent ULg

in Proceedings of the Sixth European-African Conference on Wind Engineering (2013)

The non Gaussian buffeting analysis of a structure subjected to turbulent wind may be advantageously performed with a Volterra approach. Although this concept may be applicable to nonlinear structures ... [more ▼]

The non Gaussian buffeting analysis of a structure subjected to turbulent wind may be advantageously performed with a Volterra approach. Although this concept may be applicable to nonlinear structures, the scope of this paper is limited to structures with a deterministic linear behavior. In this case, the Volterra kernels take a simple explicit expression and the statistical moments of the structural response are simply recovered by a multi-dimensional integration of the corresponding spectra. Because the multi-dimensional spectra of the loading are usually determined numerically, these integrals have to be computed numerically too. The computational burden necessary for the estimation of these integrals turns out to be prohibitive as soon as high order moments are required (beyond and including 4th moment). The numerical conditioning is in fact again worse when the structural damping is low as the Volterra kernels then exhibit very large gradients in the frequency space, which are difficult to capture properly. Because the timescales related to the dynamics of the structure and to the random wind loading are well distinct, a nowadays customary decomposition of the response into Background and Resonant contributions (dating back to A. Davenport's earliest works) provides a very good estimation of the second statistical moment. Recently the concept has been extended to the Background/biResonant decomposition for the estimation of the third statistical moment of the response. This paper presents the extension to the computation of the fourth statistical moment, with the only assumptions of slight damping and low-frequency loading such as those that made Allan Davenport's Background/Resonant (B/R) decomposition fruitful. After some multiple scales considerations, the fourth moment of the response is approximated as the sum of a background component, a tetraresonant component and a mixed background-biresonant component. Mathematical developments will be presented in the full paper along with illustrative examples, while the current 4-page abstract just presents of a flavour of it. [less ▲]

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See detailPlanification Optimiste dans les Processus Décisionnels de Markov avec Croyance
Fonteneau, Raphaël ULg; Busoniu, Lucian; Munos, Rémi

in 8èmes Journées Francophones de Planification, Décision et Apprentissage pour la conduite de systèmes (JFPDA'13) (2013)

Cet article décrit l'algorithme BOP (de l'anglais ``Bayesian Optimistic Planning''), un nouvel algorithme d'apprentissage par renforcement Bayésien indirect (c'est à dire fondé sur un modèle). BOP étend l ... [more ▼]

Cet article décrit l'algorithme BOP (de l'anglais ``Bayesian Optimistic Planning''), un nouvel algorithme d'apprentissage par renforcement Bayésien indirect (c'est à dire fondé sur un modèle). BOP étend l'approche de l'algorithme OP-MDP (de l'anglais ``Optimistic Planning for Markov Decision Processes'', voir [Busoniu2011,Busoniu2012]) au cas où les probabilités de transitions du MDP sous-jacent sont initialement inconnues, et doivent être apprises au travers d'interactions avec l'environnement. Les connaissances sur le MDP sous-jacent sont représentées par une distribution de probabilités sur l'ensemble de tous les modèles de transitions à l'aide de distributions de Dirichlet. L'algorithme BOP planifie dans l'espace augmenté état-croyance obtenu par concaténation du vecteur d'état avec la distribution postérieure sur les modèles de transitions. On montre que BOP atteint l'optimalité Bayésienne lorsque le paramètre de budget tend vers l'infini. Quelques expériences préliminaires montrent des résultats encourageants. [less ▲]

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See detailTraining-induced decrease of cytokines production by equine alveolar macrophages
Waldschmidt, Ingrid ULg; Frellstedt, Linda ULg; Art, Tatiana ULg et al

in Proceedings of the 6th Congress of the European College of Equine Internal Medicine (ECEIM) (2013)

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See detailExperimental assessment of the effect of the real flame emissivity for steel elements engulfed into fire
Tondini, Nicola; Vassart, Olivier; Franssen, Jean-Marc ULg

in Babrauska, Vytenis; Grayson, Stephen; Hirschler, Marcelo (Eds.) et al Proceedings of the Fire and Materials 2013 Conference (2013)

This paper presents the results of an experimental campaign performed to assess the effect of the flame emissivity for steel members engulfed into fire. In detail, two sizes of circular steel tubes were ... [more ▼]

This paper presents the results of an experimental campaign performed to assess the effect of the flame emissivity for steel members engulfed into fire. In detail, two sizes of circular steel tubes were engulfed into pool fires of two different diameters. Two fuels were used and for both fuels tests without column (used as comparison with existing localised fire models) and with column were performed. The temperature of the column and of the flames were measured at different heights. The width of the flame was also measured and used to calculate the emissivity of the flame the value of which was employed in numerical simulations in order to predict the evolution of the temperature of the steel column. Comparison with numerical analyses where the recommended values of the Eurocode were used is also shown. [less ▲]

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See detailDépasser les verrouillages de régimes socio-techniques des systèmes alimentaires pour construire une transition agroécologique
Baret, Philippe; Stassart, Pierre M ULg; Vanloqueren, Gaëtan et al

in van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) Actes du Premier Congrès Interdisciplinaire du Développement Durable: Quelle transition pour nos sociétés? Thème 2: Alimentation , Agriculture, Elevage: 5-14 (2013)

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See detailGénéralisation Min Max pour l'Apprentissage par Renforcement Batch et Déterministe : Relaxations pour le Cas Général T Etapes
Fonteneau, Raphaël ULg; Ernst, Damien ULg; Boigelot, Bernard ULg et al

in 8èmes Journées Francophones de Planification, Décision et Apprentissage pour la conduite de systèmes (JFPDA'13) (2013)

Cet article aborde le problème de généralisation minmax dans le cadre de l'apprentissage par renforcement batch et déterministe. Le problème a été originellement introduit par [Fonteneau, 2011], et il a ... [more ▼]

Cet article aborde le problème de généralisation minmax dans le cadre de l'apprentissage par renforcement batch et déterministe. Le problème a été originellement introduit par [Fonteneau, 2011], et il a déjà été montré qu'il est NP-dur. Deux schémas de relaxation pour le cas deux étapes ont été présentés aux JFPDA'12, et ce papier présente une généralisation de ces schémas au cas T étapes. Le premier schéma fonctionne en éliminant des contraintes afin d'obtenir un problème soluble en temps polynomial. Le deuxième schéma est une relaxation lagrangienne conduisant également à un problème soluble en temps polynomial. On montre théoriquement que ces deux schémas permettent d'obtenir de meilleurs résultats que ceux proposés par [Fonteneau, 2011]. [less ▲]

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See detailThe abundance of charcoal fragments emphasizes the assumption of huge palaeofires in the mixed moist semi-evergreen rainforest of the northern republic of Congo
Gillet, Jean-François ULg; Doucet, Jean-Louis ULg

in Damblon, Freddy (Ed.) Proceedings of the Fourth International Meeting of Anthracology (2013)

In this paper, we study the origins of the northern Congo Republic rainforests. Macroscopic charcoal fragments were systematically recorded through auger investigations and pits observations in four ... [more ▼]

In this paper, we study the origins of the northern Congo Republic rainforests. Macroscopic charcoal fragments were systematically recorded through auger investigations and pits observations in four forest types: the open canopy Marantaceae forest, the dense forest with Marantaceae, the Gilbertiodendron dewevrei forest and the Triplochiton scleroxylon forest. In addition, the charred Elaies guineensis seeds were distinguished from the other charcoals in the pits. Ten selected charcoals, including charred E. guineensis seeds, were dated by AMS. Abundance of charcoal fragments in the soils at various depths indicated several episodes of fires in the region. A dryer climatic phase, between 2320 and 1330 BP, associated with a large scale human occupation related to the important harvesting of oil palm nuts, could explain the widespread Marantaceae forests. Recent slash-and-burn shifting cultivation, c. 200 BP, would allow T. scleroxylon installation. Implications for forest management are discussed. [less ▲]

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See detailDevelopment of a simplified measuring procedure for ammonia emission from agricultural constructions
Vranken, Erik; Cabaraux, Jean-François ULg; Berckmans, Daniel

in Berckmans, D.; Vandermeulen, J. (Eds.) Precision Livestock Farming ‘13 (2013)

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See detailSymposium - Résolution de problèmes mathématiques et développement de compétences : sur quelles variables agir pour soutenir les élèves dans leur apprentissage ?
Fagnant, Annick ULg; Marcoux, Géry; Vlassis, Joëlle

in Congrès international. Actualité de la recherche en éducation et en formation. AREF 2013 (2013)

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See detailInnovative Learning for Collaborative Design in Ergonomics
Folcher, Viviane; Zreik, Khaldoun; Ben Rajeb, Samia ULg et al

in Stouffs, Rudy; Sariyildiz, Sevil (Eds.) Computation and Performance (2013)

The proposed article deals with introducing collaborative architectural design into the training of ergonomists at the Master 2 level. The collaborative design workshop aims to confront ergonomists with ... [more ▼]

The proposed article deals with introducing collaborative architectural design into the training of ergonomists at the Master 2 level. The collaborative design workshop aims to confront ergonomists with the difficulties any design project involves, and which challenge architects, designers, engineers and so on: collaboration between people with different skills and different expertise; powerful time constraints; need for their work to converge; working together and/or at a distance; sharing documents; decision-making, etc. The article will present a short review of work carried out in the domains of architecture and design, and of the contribution of ergonomics within architectural projects. We shall then present the workshop’s educational aims, and give details of the way it functioned. Finally, observation results will be presented and discussed. [less ▲]

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See detailEstimation of dominance variance with sire-dam subclass effects in a crossbred population of pigs
Dufrasne, Marie ULg; Jaspart, Véronique; Wavreille, José et al

in Book of Abstract of the 64th Annual Meeting of the European Association of Animal Science (2013)

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See detailIntegration of Inland Waterway Transport in the Intermodal Supply Chain: a Joint Research Agenda
Caris, An; Limbourg, Sabine ULg; Macharis, Cathy et al

in Rigo, Philippe; Wolters, Milou (Eds.) Proceedings of the PIANC SMART Rivers Conference 2013 (2013)

This paper identifies research opportunities which will enable the further integration of inland waterway transport in the intermodal supply chain. Intermodal transport may be interpreted as a chain of ... [more ▼]

This paper identifies research opportunities which will enable the further integration of inland waterway transport in the intermodal supply chain. Intermodal transport may be interpreted as a chain of actors who supply a transport service. Inland navigation can play a crucial role in increasing supply chain service performance. A first group of research challenges has the objective to encourage efficient operations in IWT: development of a system wide model for IWT, integration of operational planning systems and analysis of bundling networks. A second group of research efforts is directed towards shippers and consignees who use the intermodal transport chain to send or receive their goods: further development of models that integrate intermodal transport decisions with supply chain decisions and creation of green supply chains. A third group of research challenges concerns the problem domain of external cost calculations. Finally detailed time series data on freight transport should be collected to support these future research tracks. [less ▲]

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See detailThe fracture studies of polycrystalline silicon based MEMS
Mulay, Shantanu Shashikant ULg; Becker, Gauthier; Vayrette, Renaud et al

in EUROSIME 2013 (2013)

The advantages of micro-electro-mechanical systems (MEMS), such as low power requirement, miniaturized sizes and costs reduction, have already made significant impact in many technological fields. MEMS ... [more ▼]

The advantages of micro-electro-mechanical systems (MEMS), such as low power requirement, miniaturized sizes and costs reduction, have already made significant impact in many technological fields. MEMS are now widely used as accelerometers, pressure sensors, and resonators etc. However, the determination of the mechanical properties of MEMS devices with high accuracy is still a challenging task due to their small dimensions and often anisotropic behaviour. This paper focuses on the modelling and simulation of the fracture of a key MEMS component, which is a polycrystalline silicon beam, by discontinuous Galerkin (DG) formulation combined with an extrinsic cohesive law (ECL) to describe the fracture process. As the beam is modelled by plane-stress 2D elements, an analytical equation to compute the effective fracture strength and the effective critical strain energy release rate in terms of the through-the-thickness fracture mode and of the orientation of the facet with respect to the crystal is also developed. At the end, a model is simulated, and the results are verified as per the physics of the problem and experiments. [less ▲]

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See detailRaymond De Becker : une certaine idée de la Belgique. Réflexions sur une identité nationale et culturelle
Lanneau, Catherine ULg

in Dard, Olivier; Deschamps, Etienne; Duchenne, Geneviève (Eds.) Raymond De Becker (1912-1969). Itinéraire et facettes d’un intellectuel réprouvé (2013)

Au fil de ses écrits des années trente – brochures, articles, tribunes libres –, Raymond De Becker (1912-1969), intellectuel et journaliste à la réputation aujourd'hui sulfureuse au vu de son parcours ... [more ▼]

Au fil de ses écrits des années trente – brochures, articles, tribunes libres –, Raymond De Becker (1912-1969), intellectuel et journaliste à la réputation aujourd'hui sulfureuse au vu de son parcours dans la collaboration, s’est beaucoup interrogé sur la Belgique et son histoire. Il est donc possible d’appréhender la mission qu’il lui assigne ou sa définition de l’union nationale mais, surtout, de décrypter l’analyse qu’il fait des rapports entre Flamands, Wallons et Bruxellois et de voir comment il articule cette analyse avec l’évolution de sa pensée sur la notion de race, d’ethnie et de nationalité. Soulever ces différentes questions conduit à interroger, mais en surface, son rapport aux pays voisins et sa vision de l’Europe et de l’Occident. Quelle Belgique idéale Raymond De Becker veut-il construire ? [less ▲]

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See detailActive network management: planning under uncertainty for exploiting load modulation
Gemine, Quentin ULg; Karangelos, Efthymios ULg; Ernst, Damien ULg et al

in Proceedings of the 2013 IREP Symposium - Bulk Power Systems Dynamics and Control - IX (2013)

This paper addresses the problem faced by a distribution system operator (DSO) when planning the operation of a network in the short-term. The problem is formulated in the context of high penetration of ... [more ▼]

This paper addresses the problem faced by a distribution system operator (DSO) when planning the operation of a network in the short-term. The problem is formulated in the context of high penetration of renewable energy sources (RES) and distributed generation (DG), and when flexible demand is available. The problem is expressed as a sequential decision-making problem under uncertainty, where, in the first stage, the DSO has to decide whether or not to reserve the availability of flexible demand, and, in the subsequent stages, can curtail the generation and modulate the available flexible loads. We analyze the relevance of this formulation on a small test system, discuss the assumptions made, compare our approach to related work, and indicate further research directions. [less ▲]

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See detail) Shallow water facies setting around the Kačák Event – Microfacies, MS studies, and geochemical proxies.
Königshof; Da Silva, Anne-Christine ULg; Suttner et al

in ICPSEA3 2013: The 3rd International Conference on the Palaeontology of South-East Asia. Abstract book (2013)

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See detailThe clinical characteristics of pituitary adenomas (PA) in patients with primary hyperparathyroidism (PHPT) with and without MEN1 mutation
Filipponi, S; Rostomyan, Liliya ULg; VALDES SOCIN, Hernan Gonzalo ULg et al

in Symposium "Perspectives in Endocrinology" - Congresses Highlights 2012: ECE Firenze, ENDO Houston, ESPE Leipzig, SFE Toulouse, IWMEN Liège (2013)

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See detailEtude tribologique sur des lubrifiants solides à haute température dans des machines de détente
Legros, Arnaud ULg; Zaïdi, Hamid; Diny, Mouad et al

in La tribologie : fondamentaux et applications complexes (2013)

Dans le cadre de la conception d’un expanseur dédié à la récupération d’énergie à l’échappement d’un moteur à combustion interne, une étude sur des lubrifiants solides a été menée afin de choisir le ... [more ▼]

Dans le cadre de la conception d’un expanseur dédié à la récupération d’énergie à l’échappement d’un moteur à combustion interne, une étude sur des lubrifiants solides a été menée afin de choisir le couple de matériaux adéquat pour le joint principal de la machine. Ce joint doit assurer à la fois une fonction d’étanchéité interne et limiter ainsi les pertes par fuites internes de l’expanseur. Il doit également présenter un coefficient de frottement la plus faible possible afin de réduire les pertes par friction. Ce joint est en effet sollicité par des contraintes en frottement plan dans un environnement sous vapeur d’eau à des températures pouvant atteindre 250°C. Ces températures rendent complexe l’utilisation d’huile et le recours à des matériaux auto lubrifiants est dès lors l’unique solution. [less ▲]

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See detailInfluence de facteurs environnementaux influençant la teneur en urée dans le lait de vache en Wallonie et estimation des rejets azotés
Dufrasne, Isabelle ULg; Knapp, Emilie ULg; Istasse, Louis ULg et al

in Vandenberghe, Christophe; Colinet, Gilles; Destain, Jean-Pierre (Eds.) et al 2ème Atelier Nitrate-Eau, évaluation du programme de gestion durable de l'azote (2013)

En Wallonie, les teneurs en urée du lait de tank sont déterminées dans toutes les fermes lors de chaque livraison à la laiterie par le comité du lait. Un total de 8295337 données récoltées pendant l'année ... [more ▼]

En Wallonie, les teneurs en urée du lait de tank sont déterminées dans toutes les fermes lors de chaque livraison à la laiterie par le comité du lait. Un total de 8295337 données récoltées pendant l'année 2000 et la période 2002-201 ont été analysées à l'aide d'un modèle linéaire. [less ▲]

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See detailModeling of strain localization around the radioactive waste disposal galleries
Salehnia, Fatemeh ULg; Charlier, Robert ULg; Levasseur, Séverine ULg

in Coupled Phenomena in Environmental Geotechnics (2013)

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See detailToward Predictable Performance in Decision Tree-based Packet Classification Algorithms
He, Peng; Guan, Hongtao; Mathy, Laurent ULg et al

in IEEE LANMAN 2013 (2013)

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See detailReading the Résumé of a Theory of Language
Badir, Sémir ULg

in Badir, Sémir; Cigana, Lorenzo (Eds.) Reading the Résumé of a Theory of Language / Lire le Résumé d'une théorie du langage (2013)

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See detailContrast enhanced nanoCT for 3D quantitative and spatial analysis of in vitro manufactured extracellular matrix in metallic tissue engineering scaffolds
Sonnaert, Maarten; Papantoniou, Ioannis; Geris, Liesbet ULg et al

in Abstract book User Meeting Bruker MicroCT 2013 (2013)

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See detailPattern Recognition for Neuroimaging Toolbox
Schrouff, Jessica ULg; Rosa, Maria; Rondina, Jane et al

in Suykens, J.A.K.; Argyriou, A.; De Brabanter, K. (Eds.) et al International workshop on advances in Regularization, Optimization, Kernel Methods and Support Vector Machines: theory and applications (ROKS 2013), Book of Abstracts (2013)

In the past years, mass univariate statistical analyses of neuroimaging data have been complemented by the use of multivariate pattern analyses, especially based on machine learning models. While these ... [more ▼]

In the past years, mass univariate statistical analyses of neuroimaging data have been complemented by the use of multivariate pattern analyses, especially based on machine learning models. While these allow an increased sensitivity for the detection of spatially distributed e ffects compared to univariate techniques, they lack an established and accessible software framework. Here we introduce the \Pattern Recognition for Neuroimaging Toolbox" (PRoNTo), an open-source, cross-platform and MATLAB-based software comprising many necessary functionalities for machine learning modelling of neuroimaging data. [less ▲]

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See detailMontrer l’invisible. Les dieux et leurs statues dans la céramique grecque
Collard, Hélène ULg

in Borgeaud, Philippe; Fabiano, Doralice (Eds.) Perception et construction du divin dans l'Antiquité (2013)

Cette étude examine un groupe de vases particuliers, qui amènent une série de questions intéressantes sur le statut de l’image divine et sur les modes de représentation du divin en Grèce ancienne. Il ... [more ▼]

Cette étude examine un groupe de vases particuliers, qui amènent une série de questions intéressantes sur le statut de l’image divine et sur les modes de représentation du divin en Grèce ancienne. Il s’agit de documents attiques et italiotes sur lesquels une divinité est représentée à côté de sa propre statue. La question qui se pose d’emblée est celle du sens de ce type de figuration, qui « redouble » en quelque sorte la divinité. On tente de montrer ici que le « redoublement » n’est pas une simple redondance, car ces images mettent en scènes deux modes de présence différents. [less ▲]

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See detailConclusions de la première journée
Lanneau, Catherine ULg

in Destatte, Philippe; Lanneau, Catherine; Meurant-Pailhe, Fabrice (Eds.) Jules Destrée, « La Lettre au roi » et au-delà (2013)

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See detailPerceptual andMotor Inhibition in ADHD:Evidence for a specific impairment?
Catale, Corinne ULg; Geurten, Marie ULg; Lejeune et al

in Abstracts book (2013)

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004 ... [more ▼]

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004; Nassauer & Halperin, 2003). Following the perceptual versus motor dissociation proposed by Nassauer and Halperin (2003), we studied perceptual and motor inhibition in children with AttentionDeficit andHyperactivity Disorder (ADHD). Participants and Methods: Sixteen 7-12 years old children with ADHD and 30 matched control children were administered a version of the Conflict Resolution task (Nassauer & Halperin, 2003) adapted for children. In this task, the perceptual inhibition task required the children to respond to the direction of a dog (running towards the left or the right) while ignoring its location (left or right) on a computer screen. In the motor inhibition task, the children had to press a key corresponding to the opposite direction of a centrally running dog. Results: Comparisons analyses of inhibition performances between ADHD children and matched controlled subjects showed that ADHD children performed significantly less accurately for stimulus-stimulus characteristic conflicts (i.e., perceptual inhibition) than for stimulus- response conflicts (i.e., motor inhibition), which suggests a specific impairment in perceptual inhibition in our group of ADHD children. Conclusions: In conclusion, this study supports the presence of two forms of inhibition which can be differentiated and specifically impaired in 7- to 12-year-old ADHD children. [less ▲]

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See detailRural resilience and the role of social capital of Kirundo province farmers in north of Burundi
Minani, Bonaventure ULg; Rurema, Déo-Guide; Lebailly, Philippe ULg

in Backovic, Slobodan (Ed.) 3rd AGRIMBA-AVA Congress "Agribusiness and rural development as a global challenge" : programme and abstract book (2013)

Burundi, family agriculture occupies more than 90% of the active population and plays a vital role in food production and participates of more than 50% of GDP. Before the civil war of 1993, Kirundo was ... [more ▼]

Burundi, family agriculture occupies more than 90% of the active population and plays a vital role in food production and participates of more than 50% of GDP. Before the civil war of 1993, Kirundo was deemed "breadbasket of the country" for the simple reason that fed many parts of Burundi in particular food legumes and cereals, so that family farming was oriented the market. Kirundo alone includes 8 lakes with opportunities for field irrigation. Today, this is the first province in Burundi shows a high rate of malnutrition, poverty increased and a sharp decline in agricultural production up more than 500%. In this study, 73 farmers were surveyed in Kirundo, supplemented by secondary data collection. Analysis of data showed us that, despite recurrent droughts in that region which was caused several deaths due to famines and several displacements of people to neighboring countries such as Rwanda and Tanzania, we found 44% of farmers surveyed who had the resilience to climate change. The analysis of data shows that these farmers were members of local development associations, having learned specific topics such as financial management, processing and storage of agricultural products and livestock. That social capital network influences positively their income because they practice not only farming but also revenue-generating activities such as trade and crafts. [less ▲]

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See detailTraining modifies the innate immune response both in the airways and in blood in horses
Frellstedt, Linda ULg; Gosset, Philippe; Desmet, Christophe ULg et al

in Proceedings of the ICI (2013)

Lower airway diseases are common problems in sports and racing horses. In humans, exercise has been associated with upper respiratory tract infections due to down-regulated expression of Toll-like ... [more ▼]

Lower airway diseases are common problems in sports and racing horses. In humans, exercise has been associated with upper respiratory tract infections due to down-regulated expression of Toll-like receptors (TLRs), costimulatory and antigen-presenting molecules on monocytes. The objectives of this study were 1) to examine the expression of TLRs in equine bronchial epithelial cells (EBEC) and blood monocytes in untrained and trained horses; 2) to stimulate EBEC and monocytes in vitro with TLR ligands, in order to mimic bacterial/viral infections; 3) to compare the cytokine production of EBEC and monocytes in untrained and trained horses. Bronchial biopsies were taken from 8 horses during lower airway endoscopy at rest and 24 hours after a standardized exercise test (SET). Bronchial epithelial cells were grown in vitro and activated with TLR ligands. Blood monocytes were collected at rest and after the SET. TLR1-TLR9 expression was evaluated via real-time PCR and cytokine production was measured via ELISA. TLR3 and TLR4 expression was modified by training. The expression of TLR2, TLR7 and TLR8 was modified only by strenuous exercise in trained horses. Training had local immuno-suppressive effects shown by a decreased production of TNF-alpha and IFN-beta in EBEC in response to TLR2 and TLR3 ligands. Training also caused a systemic pro-inflammatory response evidenced by increased production of TNF-alpha in monocytes in response to TLR2 and TLR4 ligands. These findings suggest that training and strenuous exercise in trained subjects may result in an increased susceptibility of the lower airway to infections associated with systemic inflammation. [less ▲]

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See detailManifestation du divin et reconfiguration des panthéons à la période hellénistique. L'exemple des Artémis d'Asie mineure
Paul, Stéphanie ULg

in Borgeaud, Philippe; Fabiano, Doralice (Eds.) Perceptions et constructions du divin dans l'Antiquité (2013)

During the second half of the 2nd century B.C., the city of Bargylia, in Caria, undertook a major reorganization of the cult of Artemis Kindyas, who manifested herself to help the city when it was ... [more ▼]

During the second half of the 2nd century B.C., the city of Bargylia, in Caria, undertook a major reorganization of the cult of Artemis Kindyas, who manifested herself to help the city when it was threatened by war. A few remarkable inscriptions provide evidence of the regulations designed to « increase the honours » of the goddess, which mainly consist in making an ox sacrifice more splendid. Less than a century beforehand, a similar situation is observed in the cult of Artemis Leukophryene in Magnesia of the Meander, and of Artemis Hiakynthotrophos in Cnidus. Based on these three examples, this paper aims at showing how these epiphanies were used to settle a given deity into its function of patron deity of the city, both from an external and from an internal point of view. [less ▲]

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See detailProducción y circulación de óxidos de hierro por sociedades cazadoras-recolectoras-pescadoras del periodo arcaico en el norte de Chile
Salinas, Hernan; Salazar, Diego; Salomon, Hélène ULg et al

in El pasado tecnologico, cambio y persistencia (2013)

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See detailComment favoriser la régulation interactive lors d’activités de résolution de problèmes en petits groupes ?
Demonty, Isabelle ULg; Dupont, Virginie ULg; Fagnant, Annick ULg

in Congrès international. Actualité de la recherche en éducation et en formation. AREF 2013 (2013)

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See detailRegular Modes in Rapidly Rotating Stars
Pasek, Mickael; Georgeot, Bertrand; Lignières, François et al

in Suárez, Juan Carlos; Garrido, Rafael; Balona, Luis A. (Eds.) et al Stellar Pulsations (2013)

Rapid rotation has to date prevented reliable mode identification in most intermediate to massive pulsating stars. In this contribution we show how an asymptotic method for pressure modes predicts regular ... [more ▼]

Rapid rotation has to date prevented reliable mode identification in most intermediate to massive pulsating stars. In this contribution we show how an asymptotic method for pressure modes predicts regular frequency spacings in the spectrum of rapidly rotating stars. We give a semi-analytical formula for these spacings that is in good agreement with numerically computed high-frequency modes. This should help to extract from observed spectra important information on the structure of rapidly rotating stars. [less ▲]

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See detailA journey across scales, borders and data sources: minimum commute distance (MCD) analysis of home-to-work trips in Belgium
Teller, Jacques ULg; Cools, Mario ULg

in Hesse, Markus; Caruso, Geoffrey; Gerber, Philippe (Eds.) et al Proceedings of the BIVEC-GIBET Transport Research Days 2013 (2013)

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See detailDevelopment of organic farming in Wallonia
Burny, Philippe ULg; Debode, Frédéric

in Bran, Florina; Ioan, Ildiko; Maruntelu, Tudor-George (Eds.) et al 5th International Conference "Ecological performance in a competitive economy", Bucharest 7-8 March 2013 : proceedings (2013)

Belgium is a highly densely populated country where agricultural methods usually consume large quantities of inputs, including pesticides and chemical fertilizers. However, organic farming is practiced ... [more ▼]

Belgium is a highly densely populated country where agricultural methods usually consume large quantities of inputs, including pesticides and chemical fertilizers. However, organic farming is practiced since many years and has registered a significant development during the last years, reaching 7% of the number of farmers in Wallonia (South of Belgium) and 7% of the Walloon agricultural area. Presently, the Walloon Minister for Agriculture strongly supports this sector and has proposed a strategic development plan of organic farming, the target being to reach 14% of the Walloon agricultural area in 2020. This paper presents and discusses the situation of organic farming in Wallonia and the main features and challenges of the new strategic development plan. [less ▲]

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See detailResident lung CD11b+Ly6C- dendritic cells are responsible for allergic airway sensitization to house dust mite in mice
Mesnil, Claire ULg; Sabatel, Catherine ULg; Marichal, Thomas ULg et al

in Proceeding of International Congress of Immunology 2013 (2013)

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See detailUpbrella and BIM: Rethinking the construction process in residential construction
Forgues, Daniel; Schmitz, Dimitri ULg; Tahrani, Souha

in Hajdu, Miklos; Skibniewski, Miroslaw (Eds.) Proceedings Creative Construction Conference 2013 (2013)

The problems of productivity, predictability and quality in design and delivery of the building product are well documented. Prefabrication, process reengineering and digitalization are proposed as ... [more ▼]

The problems of productivity, predictability and quality in design and delivery of the building product are well documented. Prefabrication, process reengineering and digitalization are proposed as potential solutions to address these issues. One issue that is rarely addressed, however, is the management of the changes required to move from existing to a new paradigm of practices. Organization of work in construction, as opposed to other industries, has barely evolved in the last centuries. The research project studies the impact of the introduction of a new high-rise building construction system and BIM related technologies on the organization of work within a multi- residential project. The aim is to develop a concept of operation on how to reorganize work process within and between practices and trades. Ethnographic methods were used to identify issues regarding the management of information, the organization of work and the perceptions regarding BIM associated technologies and tools such as electronic tablets. Benchmarking and lean production tools such as value stream mapping were also utilized to identify problems of productivity and waste. Waste related to poor management of workflows and information flow was a major issue and had a strong impact on productivity. Contractual context in which there are no incentives for professionals and trades to improve their overall performance (no share responsibilities and fragmented obligations) was identified as the principal obstacle to changes in existing practices. Traditional project management practices proved to be inefficient to compensate the lack of coordination and collaboration between the project stakeholders. However, even if the use of BIM proved to be impractical in this context, tablets were well received as a way to improve collaboration and coordination of the work. A concept of operation was derived from the lessons learned that will be validated in the next pilot project. [less ▲]

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See detailComparative analysis of the energy dissipation on a stepped spillway downstream of a Piano Key Weir
Silvestri, Aurélien ULg; Archambeau, Pierre ULg; Pirotton, Michel ULg et al

in Erpicum, Sébastien; Laugier, Frédéric; Pfister, Michael (Eds.) et al Labyrinth and Piano Key Weirs II - PKW 2013 (2013)

A systematic experimental study has been carried out to compare the residual energy at the toe of a stepped spillway of varied length considering a classical ogee-crested weir (OCW) or two different piano ... [more ▼]

A systematic experimental study has been carried out to compare the residual energy at the toe of a stepped spillway of varied length considering a classical ogee-crested weir (OCW) or two different piano key weirs (PKW) at the top of the structure. Four spillway lengths have been considered on a wide range of discharge. An indirect method has been used to compute the residual flow energy at the spillway toe from water depth measurements in a horizontal channel downstream. The results indicate that uniform flow conditions, i.e. flow energy at the spillway toe independent of the spillway length, are reached on significantly shorter spillways downstream of a PKW than downstream of an OCW. However, the uniform flow energy at constant discharge on the spillway is found to vary depending on the weir type. In particular, it is smaller downstream of the OCW than downstream of the PKWs. [less ▲]

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See detailThe role of tyrosin kinase inhibitors in a MEN2B patient with metastatic medullary thyroid carcinoma
Tome, M; Tomas, M-H; VROONEN, Laurent ULg et al

in Symposium "Perspectives in Endocrinology" - Congresses Highlights 2012: ECE Firenze, ENDO Houston, ESPE Leipzig, SFE Toulouse, IWMEN Liège (2013)

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See detailPregnancy-associated glycoproteins in sheep: breeds, techniques and achievements
El Amiri, Bouchra; Melo de Sousa, Noelita ULg; Szenci, Otto et al

in Proceedings of the 23rd International Congress of Hungarian Association for Buiatrics (2013)

The aim of the present review is to summarize the achievements on pregnancy-associated glycoproteins in sheep during the last 20 years on terms of results obtained after purifications, molecular biology ... [more ▼]

The aim of the present review is to summarize the achievements on pregnancy-associated glycoproteins in sheep during the last 20 years on terms of results obtained after purifications, molecular biology, radio-immunoassays (RIA), enzyme linked immune sorbent assay (ELISA), double radial immune-diffusion (Ouchterlony) and Western blot techniques. The analysis of documented papers that concerned these attempts showed that the animal genetic material used was composed of variable breeds from north Africa, Europe and USA (the Aragonesa, Ouled Djellal, Laucaun drairy sheep, Berrichone, Texel x Norvegian crossed ewes, Awassi x Merino, Blackheaded Moutton sheep x Blackheaded German Mutton sheep (BGM), Rhoen sheep crosses of BGM with Dorper sheep, Assaf, Chura, Merino, Texel, Suffolk, Boujaâd Moroccan breed). The RIA represents the wildspread technique used (54%) while Oucherlony and Western blot had been limited in use (4% each). From 1990 to 2000 only 27% of the achievements being available today were realized. The main data, profiles and studies were performed from 2000 to now (63%). To conclude, this review allows summarizing and updating the knowledge about the PAG in sheep. [less ▲]

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See detailNonlinear Normal Modes of Nonconservative Systems
Renson, Ludovic ULg; Kerschen, Gaëtan ULg

in Proceedings of the SEM IMAC XXXI Conference (2013)

Linear modal analysis is a mature tool enjoying various applications ranging from bridges to satellites. Nevertheless, modal analysis fails in the presence of nonlinear dynamical phenomena and the ... [more ▼]

Linear modal analysis is a mature tool enjoying various applications ranging from bridges to satellites. Nevertheless, modal analysis fails in the presence of nonlinear dynamical phenomena and the development of a practical nonlinear analog of modal analysis is a current research topic. Recently, numerical techniques (e.g., harmonic balance, continuation of periodic solutions) were developed for the computation of nonlinear normal modes (NNMs). Because these methods are limited to conservative systems, the present study targets the computation of NNMs for nonconservative systems. Their definition as invariant manifolds in phase space is considered. Specifically, a new finite element technique is proposed to solve the set of partial differential equations governing the manifold geometry. [less ▲]

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See detailAir CO2 in Comblain-au-Pont Cave (Belgium). Relationships with soil CO2 and open air meteorology
Godissart, Jean; Ek, Camille ULg

in International Congress of Speleology Proceedings (2013)

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See detailA prospective study of cardiac valvular status in patients treated with cabergoline for endocrine disease
VROONEN, Laurent ULg; LANCELLOTTI, Patrizio ULg; Tome, M et al

in Symposium "Perspectives in Endocrinology" - Congresses Highlights 2012: ECE Firenze, ENDO Houston, ESPE Leipzig, SFE Toulouse, IWMEN Liège (2013)

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See detailFirst record of Demosponge spicules in a late Devonian stromatoporoid basal skeleton (Frasnian, Belgium).
Reitner; Da Silva, Anne-Christine ULg; Kershaw et al

in Abstracts: Ninth world sponge conference 2013 (2013)

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See detailLa dimension "travail", un élément clé pour le maintien de nos systèmes laitiers
Turlot, Amélie; Froidmont, Eric; Bauraind, Catherine et al

in Centre wallon de Recherches agronomomiques (Ed.) 18ème Carrefour des Productions Animales "Nouvelles approches pour une optimisation de nos élevages laitiers" (2013)

Les agriculteurs sont les principaux architectes du milieu rural wallon. En effet, ils assurent la gestion de près de la moitié de la superficie de la Wallonie. On observe néanmoins, depuis quelques ... [more ▼]

Les agriculteurs sont les principaux architectes du milieu rural wallon. En effet, ils assurent la gestion de près de la moitié de la superficie de la Wallonie. On observe néanmoins, depuis quelques années, une régression lente (3%/an) et constante de leur effectif. Confrontés à un contexte changeant, de plus en plus concurrentiel, les agriculteurs sont face à des choix stratégiques difficiles en vue d’optimiser l’efficience de leur exploitation. Pour y parvenir, ils doivent mener une réflexion globale de leur mode de production et intégrer tous les aspects assurant la durabilité de leur exploitation. Pour les aider dans cette démarche, une analyse de la durabilité de 90 exploitations « 100% Lait » (>95% de vaches laitières et pas de culture de rente) a été réalisée dans le cadre de DuraLait et de DuraLait Plus. Ces études sont subsidiées par la DGARNE, Direction de la Qualité. Les piliers économique et social de la durabilité ont été plus particulièrement étudiés dans ces projets. L’organisation du travail a été spécifiquement traitée car elle constitue un enjeu essentiel pour l’avenir de l’agriculture. En effet, les agriculteurs souhaitent soulager la pénibilité de leur travail. Dans un contexte économique difficile, cette dimension est essentielle pour envisager le maintien de l’agriculture dans notre région. Le présent article s’intéresse uniquement aux données relatives à l’organisation du travail. [less ▲]

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See detailDe l'office de la Trinité pour le diocèse de Liège au Xe siècle. Liège, Metz, Mayence, Saint-Gall
Close, Florence ULg

in Kupper, Jean-Louis; Wilkin, Alexis (Eds.) Évêque et prince. Notger de Liège et la Basse-Lotharingie aux alentours de l’an mil (2013)

La tradition liégeoise reste attachée à la personne de l’évêque Étienne (901-920) qui, à l’aube du Xe siècle, montait sur le siège de saint Lambert. Son œuvre a joui d’une renommée certaine au fil des ... [more ▼]

La tradition liégeoise reste attachée à la personne de l’évêque Étienne (901-920) qui, à l’aube du Xe siècle, montait sur le siège de saint Lambert. Son œuvre a joui d’une renommée certaine au fil des siècles . Elle a connu un grand succès mesurable à l’aune des copies manuscrites dont elle a fait l’objet. On reconnaît désormais à cet évêque un rôle non négligeable dans la diffusion d’un procédé musical mis au point, dans le courant du IXe siècle, dans les abbayes d’Elnone et de Saint-Thierry de Reims. Pourtant, Étienne de Liège n’a, de toute évidence, pas fait école dans la cité mosane . On douta même longtemps de la part qui fut effectivement la sienne dans la composition de ces œuvres. Cet article s'interroge sur les motifs de cette remise en cause des qualités littéraires et musicales du dernier évêque carolingien liégeois. Quelle image ce prélat laissa-t-il à ses ouailles et à ses successeurs ? Quelle influence exerça-t-il réellement sur la production musicale et liturgique ultérieure ? Notger contribua-t-il à la diffusion de son œuvre ? Cet article propose quelques éléments de réponses à la lumière d'une étude de la tradition manuscrite de l'office de la Trinité. [less ▲]

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See detailThe phosphate minerals assemblages from Jocão pegmatite, Minas Gerais, Brazil.
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, S

in PEG2013 – 6th International Symposium on Granitic Pegmatites, Abstract book, (2013)

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See detailReprésentation de l'oral et structures syntaxiques dans la prose de la _Queste del saint Graal_ (1225-1230)
Glikman, Julie; Mazziotta, Nicolas ULg

in Lagorgette, Dominique; Larrivée, Pierre (Eds.) Représentations du Sens Linguistique 5 (2013)

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See detailLa production céréalière biologique en Wallonie
Debode, F.; Schiepers, H.; Burny, Philippe ULg

in Destain, J.-P.; Bodson, B. (Eds.) Livre Blanc "Céréales", édition février 2013 (2013)

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See detailInvestigation of the influence of packing geometry and of liquid viscosity on the liquid flow morphology by using X-ray tomography
Janzen, Anna; Steube, Julia; Kenig, Evgeny et al

in Proceedings of the 7th World Congress on Industrial Process Tomography (2013)

X-ray tomography is used to investigate the influence of packing geometry and of liquid viscosity on hydrodynamic quantities, as well as on the liquid flow morphology inside a packed column successively ... [more ▼]

X-ray tomography is used to investigate the influence of packing geometry and of liquid viscosity on hydrodynamic quantities, as well as on the liquid flow morphology inside a packed column successively filled with two structured metallic packing, M752Y and M500X. As expected, liquid holdup and gas-liquid interfacial area increase with liquid flow rate and viscosity. In both packings, the film flow pattern predominates, while flooded regions remain minority. The influence of liquid flow rate and viscosity on flow morphology depends on the packing geometry. In M752Y, film and flooded region flows are clearly influenced, whereas in M500X, they are not. [less ▲]

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See detailThe astronomical calibration of the Givetian (Middle Devonian) time scale (Dinant Synclinorium, Belgium).
De Vleeschouwer; Boulvain, Frédéric ULg; Da Silva, Anne-Christine ULg et al

in Whalen; Osadetz; Richards (Eds.) et al IGCP-580/596, Geophysical and Geochemical techniques: a window on the Paleozoic world, Abstract book (2013)

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See detailIn ovo injection of tolbutamide alters the post-hatch performance and insulin sensitivity of broiler chickens
Franssens, L.; Lesuisse, J.; Wang, Y. et al

in Proceedings of the 6th Combined Workshop on Fundamental Physiology and Perinatal Development in Poultry (2013)

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See detailAutomatic differentiation between Alzheimer’s Disease and Mild Cognitive Impairment combining PET data and psychological scores
Segovia-Román, Fermín ULg; Bastin, Christine ULg; Salmon, Eric ULg et al

in 3rd International Workshop on Pattern Recognition in Neuroimaging (2013)

In recent years, several approaches to develop computer aided diagnosis systems for dementia have been pro- posed. The purpose of this work is to measure the advantages of using not only brain images as ... [more ▼]

In recent years, several approaches to develop computer aided diagnosis systems for dementia have been pro- posed. The purpose of this work is to measure the advantages of using not only brain images as data source for those systems but also some psychological scores. To this aim, we compared the accuracy rates achieved by systems that use psychological scores beside the image data in the classification step and systems that use only the image data. The experiments show that the formers achieve higher accuracy rates regardless of the procedure carried out to analyze the image data. [less ▲]

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See detailUnravelling the determinants of carpool behaviour in Flanders, Belgium: Integration of qualitative and quantitative research
Cools, Mario ULg; Tormans, Hans; Briers, Steffen et al

in Hesse, Markus; Caruso, Geoffrey; Gerber, Philippe (Eds.) et al Proceedings of the BIVEC-GIBET Transport Research Days 2013 (2013)

The goal of this study is to identify those factors that trigger carpoolers to share their rides and the barriers that restrain non-carpoolers from doing so. To this end, four focus group sessions were ... [more ▼]

The goal of this study is to identify those factors that trigger carpoolers to share their rides and the barriers that restrain non-carpoolers from doing so. To this end, four focus group sessions were organized. In addition, information from the 2009-2010 Flemish household travel survey was analysed. From the focus group discussions, it can be concluded that the concept of carpooling is generally well known, but that the media attention and stimuli for the topic seem to have faded away over time. The main motivations to carpool are the social aspect, the financial benefit or a combination of both. The quantitative analysis underlined for the difference between the distinct types of employees. Furthermore, the finding that the home-work distance increases the likelihood to carpool emphasizes the importance of the financial benefits of carpooling. Financial stimuli are thought to have the most potential to increase the share of carpooling in the modal split. [less ▲]

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See detailA la recherche d’une doctrine stratégique : L’invasion de la Belgique en 1914 à la lumière de l’environnement intellectuel des stratèges belges depuis 1839
Bechet, Christophe ULg

in Cochet, François (Ed.) Expériences combattantes XIXe - XXIe siècles. Tome 3 : Les environnements du combattant (2013)

L’environnement intellectuel des stratèges belges présenté dans cet article ne doit donc pas être considéré comme un corpus doctrinal précis mais plutôt comme une série d’interrogations géopolitiques ... [more ▼]

L’environnement intellectuel des stratèges belges présenté dans cet article ne doit donc pas être considéré comme un corpus doctrinal précis mais plutôt comme une série d’interrogations géopolitiques propres à l’espace belge, son statut de neutralité et ses fortifications. Ainsi, les choix posés par le Roi Albert I depuis l’ordre de mobilisation le 31 juillet 1914 jusqu’au repli de l’armée belge sur Anvers dans la nuit du 18-19 août peuvent être mis en parallèle avec les divers débats, polémiques ou études stratégiques antérieurs concernant la défense de la Belgique. Au cours de ces trois premières semaines de conflit, le souverain belge est en effet confronté à trois dilemmes majeurs : 1)Quand mobiliser ? Faut-il mobiliser avant la France et l’Allemagne ? 2) Quelle attitude adopter après la phase de mobilisation ? Faut-il concentrer les troupes vers la frontière menacée ou au centre du pays ? 3) En cas d’invasion, la jonction de l’armée belge avec une armée de secours est-elle prioritaire ? [less ▲]

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See detailPastoral dynamics in the region of Diffa (Niger) : a descriptive analysis of livestock capital
Laouali, Abdoulkadri ULg; Rouchet, François ULg; Lebailly, Philippe ULg et al

in Dusan Kovacevic, Kovacevic (Ed.) Book of proceedings - Fourth International Scientific Symposium „Agrosym 2013“ (2013)

Located between the desert zone in the North and the Sahelian zon in the South, the Region of Diffa is a pastoral area par excellence in Niger. Breeding, witch a highly diversified livestock, is the ... [more ▼]

Located between the desert zone in the North and the Sahelian zon in the South, the Region of Diffa is a pastoral area par excellence in Niger. Breeding, witch a highly diversified livestock, is the dominant economic activity in the region. It occupied 95% of the population and contributes annually to 55% in the formation of the region gross domestic production. For understanding the pastoral dynamic a survey of 300 households (150 households witch herd sedentary and 150 witch herd mobile) was conducted during the first semester of 2012. The data analysis is performed from a herd of 15,618 animal heads consisting mainly of small ruminants for both sedentary (72%) and mobile (52%). The herd structure (sedentary and mobile) by age and sex shows on the one hand, the males are early and systematically exploited, all species including, and the reproduction is carried out by a core of female spawners more less stable and dominated by young females, on the other hand. Comparative analysis of compositions and structures of the livestock by agro-ecological zone (Pastoral bowls zone; Komadougou River and Lake Chad zones) reveals zonal disparities particularly in the sedentary livestock system. [less ▲]

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See detailSpicules or no spicules in Devonian stromatoporoids, that’s the question?
Da Silva, Anne-Christine ULg; Kershaw; Boulvain, Frédéric ULg et al

in Whalen; Osadetz; Richards (Eds.) et al IGCP-580/596, Geophysical and Geochemical techniques : a window on the Paleozoic world, Abstract book (2013)

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See detailApports des configurations spatiales augmentées aux activités de formation par projet
Ben Rajeb, Samia ULg; Leclercq, Pierre ULg

in van de Leemput, Cécile; Chauvin, Christine; Hellemans, Catherine (Eds.) Activités humaines, technologies et bien être (2013)

Cet article présente et discute l’analyse des implications de quatre configurations spatiales augmentées (CSA) sur des activités collaboratives en formation par projet. Ces configurations sont permises ... [more ▼]

Cet article présente et discute l’analyse des implications de quatre configurations spatiales augmentées (CSA) sur des activités collaboratives en formation par projet. Ces configurations sont permises grâce au dispositif Studio Digital Collaboratif, dont le logiciel SketSha (Sketch Sharing) permet le partage d’annotations et de documents graphiques à distance et en temps réel. L’analyse de ces implications est conduite ici de façon qualitative et selon quatre axes, mettant en évidence leurs atouts et limitations : - la réalisation de soi : développement des compétences en situations de conception collaborative; - la production collective : requalification du document comme objet intermédiaire pour la collaboration; - les relations entre les acteurs : reconsidération de la hiérarchie et émergence d'une synchronisation cognitive; - la requalification des espaces de travail : remise en cause de la dichotomie co-présence / à distance dans les collaborations synchrones. [less ▲]

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See detailShort overview of global sustainable development indicators
Paveliuc Olariu, Codrin ULg; Burny, Philippe ULg

in Bran, Florina; Ioan, Ildiko; Maruntelu, Tudor-George (Eds.) et al 5th International Conference "Ecological performance in a competitive economy", Bucharest 7-8 March 2013 : proceedings (2013)

In this paper, a bibliographical review of current sustainable development indicators used at regional and global level is presented. This review was undertaken as part of an analysis on the status quo on ... [more ▼]

In this paper, a bibliographical review of current sustainable development indicators used at regional and global level is presented. This review was undertaken as part of an analysis on the status quo on how to measure sustainable development and the ways to quantify results regarding set goals. Its purpose is to establish if the results of the actions taken in order to achieve the targets of the Millennium Development Goals (MDG) and those that will be taken in order to reach the target of the Sustainable Development Goals (SDG). [less ▲]

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See detailLes industries à pointes foliacées du Paléolithique supérieur ancien dans le Nord-Ouest de l’Europe : le Lincombien-Ranisien-Jerzmanowicien
Flas, Damien ULg

in Bodu, Pierre; Chehmana, Lucie; Klaric, Laurent (Eds.) et al Le Paléolithique supérieur ancien de l’Europe du Nord-Ouest. Réflexions et synthèses à partir d’un projet collectif de recherche sur le centre et le sud du Bassin parisien (2013)

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See detailFoucon de Candie : microscopie et macroscopie de l'interpolation
Moreno, Paola ULg

in Combes, Annie; Szkilnik, Michelle (Eds.) Le texte dans le texte. L'interpolation médiévale (2013)

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See detailLes centres de langues universitaires à la croisée des chemins, face à la globalisation
Defays, Jean-Marc ULg

in DEVIVRY-PLARD; FAURE, Pascaline; BRUDERMANN, Cédric (Eds.) Apprendre les langues à l’Université au 21e siècle (2013)

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See detailCatalytic layer for PEMFC based on carbon xerogels
Deschamps, Fabien ULg; Traina, Karl; Pirard, Jean-Paul ULg et al

in Proceedings of the Fundamentals and Development of Fuel cells 2013 conference (2013)

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See detailSymposium - Echec scolaire, redoublement ou décrochage : les croyances des enseignants sous la loupe…
Fagnant, Annick ULg; Poncelet, Débora

in Congrès international. Actualité de al recherche en éducation et en formation. AREF 2013 (2013)

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See detailModelling agricultural strategies to protect groundwater resources in the Hesbaye aquifer (Belgium)
Sohier, Catherine ULg; Degré, Aurore ULg

in Fraters, Dico; Kovar, Karel (Eds.) International Interdisciplinary Conference on Land Use and Water Quality, Reducing Effects of Agriculture, The Hague, the Netherlands, 10-13 June 2013 (2013)

Groundwater quality is spoiled by various substances resulting from human activities. In addition to pesticides, one of the most problematic substances is nitrate. Pumping prevention areas are strategic ... [more ▼]

Groundwater quality is spoiled by various substances resulting from human activities. In addition to pesticides, one of the most problematic substances is nitrate. Pumping prevention areas are strategic zones in terms of struggle against diffuse pollution by nitrate. In order to reduce diffuse pollution of waters by nitrate, different strategies of agricultural practices can be implemented. Their impact can be evaluated either by monitoring water quality or using an agro-hydrological model. The advantage of modelling is to be able to test long term impacts of implemented measures and impacts of complementary measures. Using EPICgrid distributed agro-hydrological model, we reproduced the current agricultural practices. We calculated nitrate leaching but also the nitrate stock in the root zone. These results were validated through a comparison with a lot of nitrogen stock measurements. (These measurements are compulsory in the Walloon context.) The nitrate concentration in pumping wells was also used to assess the efficiency of the model. After this calibration phase, we modelled several scenarios of more water-protective agricultural practices. Indeed, the Hesbaye galleries represent an important source of drinking water in the Walloon region, it is therefore highly probable that further mitigation measures are going to be imposed in the pumping prevention area. An increase in the area cultivated with cereals, a strong limitation of mineral fertilisation as well as a conversion to grasslands were tested and combined. The results of these simulations show how some agricultural practices scenarios can lead to an important decrease in diffuse pollution by nitrate. Prospective simulations taking into account possible future climate evolution (global change scenarios) are carried out to assess nitrate concentrations near the groundwater table for the deadlines of the WFD (2015, 2021 and 2027). Due to the transfer time through the vadose zone (more than 20 years in some subregions), it is showed that an increase in groundwater nitrate concentrations will occur, in some areas, until at least 2030 before new agricultural practices can impact positively the groundwater quality. [less ▲]

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See detailBilinguisme et digraphisme dans le codex miscellaneus de Montserrat
Macedo, Gabriel ULg

in Rochette, Bruno; Marganne, Marie-Hélène (Eds.) Bilinguisme et digraphisme dans le monde gréco-romain. L'apport ds papyrus latins. Actes de la table ronde de Liège, 12-13 mai 2011 (2013)

The present paper proposes a codicologic, palaeographic and contextual study of an extraordinary Late Antique book: the Montserrat codex miscellaneus. Dated on palaeographic grounds to the IV century AD ... [more ▼]

The present paper proposes a codicologic, palaeographic and contextual study of an extraordinary Late Antique book: the Montserrat codex miscellaneus. Dated on palaeographic grounds to the IV century AD, this manuscript provides us with evidence of particular interest on bilingualism and digraphism in Byzantine Egypt, for it is the only antique codex containing texts in both Greek and Latin, of both Christian and Secular content, and pertaining to different literary genres, such as rhetoric, hexametric poetry and Christian liturgy. [less ▲]

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See detailInvestigation of the Determinants of Travelers’ Mental Knowledge of Public Parking Facilities
Cools, Mario ULg; van der Waerden, Peter; Janssens, Davy

in Proceedings of the 92nd Annual Meeting of the Transportation Research Board (DVD-ROM) (2013)

This paper describes a study of car drivers’ familiarity with the parking situation in the vicinity of a regional shopping center. The data used for this study are collected in Hasselt, a medium sized ... [more ▼]

This paper describes a study of car drivers’ familiarity with the parking situation in the vicinity of a regional shopping center. The data used for this study are collected in Hasselt, a medium sized city in Belgium. The central shopping area of Hasselt is surrounded by 23 public parking facilities. 1007 residents have been asked to indicate if they are familiar with each parking facility. The concept of familiarity was related to the socio-demographic and cognitive attributes of the respondents, their trips to the city center and the type of parking facility using multinomial logistic regression and bivariate probit regression. The results show that familiarity with parking facilities is especially related to age and education, and to the frequency of car use towards the city centre, and to a lesser extent to place of residence, income and perceived mental knowledge. In addition to these results, this paper demonstrates the value of collecting virtual buffer data by means of an online survey tool. The authors recommend that simulation models that predict parking choice behavior take into account the different levels of familiarity with parking facilities, and the contributing factors. An important avenue for further research is the combination of personal and facility specific information to assess the familiarity with different types of parking facilities. [less ▲]

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See detailLe cas des systèmes hypothétiques coordonnés du grec ancien
Denizot, Camille ULg

in Bodelot, Colette; Gruet-Skrabalova, Hana; Trouilleux, François (Eds.) Morphologie, syntaxe et sémantique des subordonnants (2013)

On rencontre, dans l’Iliade et chez Hérodote, principalement, des systèmes hypothétiques où la protase (introduite par εἰ) et l’apodose sont en outre coordonnés par μέν / δέ. Ces occurrences paradoxales ... [more ▼]

On rencontre, dans l’Iliade et chez Hérodote, principalement, des systèmes hypothétiques où la protase (introduite par εἰ) et l’apodose sont en outre coordonnés par μέν / δέ. Ces occurrences paradoxales peuvent être expliquées de manière satisfaisante si on sépare soigneusement le niveau sémantique (où l’hypothèse peut être expliquée) et le niveau syntaxique (où le caractère non subordonné de la protase peut être démontré) ; cette explication permet de décrire les emplois non subordonnants de εἰ sans avoir à les faire dériver d’une structure subordonnée. [less ▲]

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See detailPriests and Cult Personnel in Three Hellenistic Families
Carbon, Jan-Mathieu ULg; Pirenne-Delforge, Vinciane ULg

in Horster, Marietta; Klöckner, Anja (Eds.) Cities and Priests. Cult Personnel in Asia Minor and the Aegean Islands from the Hellenistic to the Imperial Period (2013)

This paper offers an examination of three significant familial inscriptions from the Hellenistic period. The texts are detailed cultic dossiers initiated by three individuals—Diomedon on Cos, Poseidonios ... [more ▼]

This paper offers an examination of three significant familial inscriptions from the Hellenistic period. The texts are detailed cultic dossiers initiated by three individuals—Diomedon on Cos, Poseidonios in Halicarnassus, and Epikteta on Thera. Though they are often very briefly grouped together, these inscriptions are discussed here in greater textual and contextual detail. In particular, the analysis focusses on the cult personnel, which is appointed in these families, demonstrating that it remains independent from the polis, but is organised with reference to a civic framework. By setting these inscriptions in parallel, the discussion opens up productive perspectives on the evolutions of familial cults in the Hellenistic period.—The inscription of Poseidonios is reedited in an Appendix by Jan-Mathieu Carbon. [less ▲]

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See detailL'impact des activités non-agricoles sur la pauvreté et l'inégalité rurales, cas des groupements Bugorhe et Irhambi-Katana (Territoire de Kabare, Province du Sud-Kivu)
Furaha Mirindi, Germaine ULg; Mastaki, Leki; Lebailly, Philippe ULg

in Société Française d'Economie Rurale (Ed.) 7èmes Journées de Recherches en Sciences Sociales : actes du colloque (2013)

Dans un contexte d’abandon ou négligence du secteur agricole par le pouvoir public, cette étude cherche à analyser la contribution de l’activité non agricole sur la réduction de la pauvreté et des ... [more ▼]

Dans un contexte d’abandon ou négligence du secteur agricole par le pouvoir public, cette étude cherche à analyser la contribution de l’activité non agricole sur la réduction de la pauvreté et des inégalités dans le territoire de kabare dans la province du Sud-kivu. La présente étude se focalise sur deux groupements du territoire de kabare de la province du Sud-Kivu à savoir Bugorhe et Irhambi-katana dont le centre de kavumu a été retenu dans l’échantillonnage pour le premier et le centre Katana dans le second. Deux grandes catégories des ont intéressées la présente étude : les ménages qui exercent l’activité agricole uniquement et les ménages combinant l’activité agricole et le commerce (notés ici ménages agricommerçants). A partir des données de l’enquête menée en mars et avril 2012, nous examinons l’effet du revenu non-agricole sur la pauvreté et l’inégalité en zone rurale de la province du Sud-kivu. Nous partons d’une approche qui considère le revenu non-agricole comme un « transfert exogène » qui s’ajoute au revenu total du ménage et analysons la contribution des différents types de revenus à l’inégalité en utilisant la décomposition de l’indice de Gini. Nous analysons la pauvreté en référence à l’approche de la Banque Africaine de Développement (2010) de l’analyse de la pauvreté en RDC. L’approche absolue de mesure de la pauvreté (pauvreté monétaire) qui est mesurée par les indices de Foster-Greer Thorbecke (F.G.T, 1984). L’étude a porté sur un échantillon de 135 ménages obtenu à partir de la technique de sondage systématique appliquée sur les ménages agri-commerçants, et d’un échantillonnage par quotas appliqué sur les ménages à unique activité agricole. Selon ces enquêtes, les ménages agricommerçants échappent aux chocs négatifs grâce à l’activité commerciale qui assure les besoins de base et finance l’activité agricole. Malgré le déclin relatif et structurel du secteur agricole du Sud-Kivu, 98,3% des ménages n’abandonnent pas cette activité pour des raisons d’autoconsommation (100% des ménages), de sécurité et d’estime sociale (73%), de stabilité économique (82%). Les ménages à unique activité agricole sont plus exposés au phénomène de pauvreté : 80,9% d’eux vivent avec un revenu inférieur au seuil minimum de 171,2$/pers/an. La profondeur de la pauvreté est plus accentuée chez les ménages agriculteurs (37,6%) que chez les ménages agri-commerçants (1,9%). En plus, la pauvreté est plus sévère chez les ménages agriculteurs (21,9%) que chez les ménages agri-commerçants (0,3%). Le secteur agricole contribue moins à l’inégalité par rapport à l’activité de commerce. En effet, pour un indice de Gini de 0,5242, le revenu issu du commerce contribue fortement à l’inégalité de revenus des ménages à l’ordre de 58,7% contre une contribution à l’inégalité de l’ordre de 24,4% du revenu agricole pour un indice de Gini de 0,2356. Dans le contexte du milieu d’étude, l’activité commerciale permet aux ménages de survivre mais n’est pas un moyen efficace pour un développement rural durable dans ce milieu à fort potentialité agricole. [less ▲]

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See detailNew mesh generation developments in GMSH
Remacle, Jean-François; Johnen, Amaury ULg; Lambrechts, Jonathan et al

in Actes du 11e Colloque National en Calcul des Structures (CSMA 2013), Giens, France (2013)

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See detailAssessment of landslides activity in Maily‐Say Valley, Kyrgyz Tien Shan
Schlögel, Romy; Fernandez-Steeger, Tomas; Braun, Anika et al

in Landslide Science and Practice (2013)

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See detailMicrocracks-induced damage modelling for transversely isotropic rock
Levasseur, Séverine ULg; Welemane, Hélène; Kondo, Djimédo

in 3rd International Symposium on Computational Geomechanics (ComGeo III) (2013)

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See detailInvestigation of the glucose metabolism of the embryonic and neonatal broiler chicks by injection of insulin
Franssens, L.; Lesuisse, J.; Koppenol, A. et al

in EAAP series (2013)

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See detailProfiling workers’ activity-travel behavior based on mobile phone data
Liu, Feng; Janssens, Davy; Wets, Geert et al

in Proceedings of the Third International Conference on the Analysis of Mobile Phone Datasets (NetMob) (2013)

Activity-based micro-simulation models typically predict 24-hour activity-travel patterns for each individual in a study area. These patterns reflect the characteristics of the available transportation ... [more ▼]

Activity-based micro-simulation models typically predict 24-hour activity-travel patterns for each individual in a study area. These patterns reflect the characteristics of the available transportation infrastructure and land-use system as well as individuals’ lifestyles and needs. However, the lack of a reliable benchmark to evaluate the generated patterns has been a major concern. To address this issue, we explore the possibility of using mobile phone data to build such a validation measure. Our investigation consists of three steps. First, the daily trajectory of locations, where a user performed activities, is constructed from the mobile phone records. To account for the discrepancy between the movements revealed by the call data and the real traces that the user has made, the daily trajectories are then transformed into travel sequences. Finally, all the inferred travel sequences are classified into typical activity-travel patterns which, in combination with their relative frequencies, define a profile. The established profile represents the activity-travel behavior in the study area, and thus can be used as a benchmark for the validation of the activity-based models. By comparing the benchmark profiles derived from the call data with statistics that stem from activity-travel surveys, the validation potential is demonstrated. In addition, a sensitivity analysis is carried out to assess how the results are affected by the different parameter settings defined in the profiling process. [less ▲]

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See detailDes données de perception et de performance pour réguler un dispositif en ligne
Jacquet, Maud ULg; Georges, François ULg; Michiels, Laurence ULg et al

in Colloque scientifique international portant sur les TIC en éducation : bilan, enjeux actuels et perspectives futures (2013)

En 2010, pour la première fois en Communauté française de Belgique, un même cours de médecine vétérinaire a été proposé par un même enseignant à quatre universités. L’enseignant désigné pour cette ... [more ▼]

En 2010, pour la première fois en Communauté française de Belgique, un même cours de médecine vétérinaire a été proposé par un même enseignant à quatre universités. L’enseignant désigné pour cette expérience a bénéficié d’un accompagnement technopédagogique de l’IFRES (ULg) pour concevoir son cours. Dans cet article, nous décrirons le dispositif en ligne, nous présenterons l’usage que les apprenants en ont eu, leurs perceptions et leurs performances. L’objet de cette analyse est principalement d'offrir à l’enseignant des informations utiles pour réguler son cours. [less ▲]

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See detailOrdre et procédures collectives: un long fleuve tranquille?
Aydogdu, Roman ULg; Decharneux, Joëlle ULg

in La procédure d'ordre en pratique (2013)

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See detailQu'est-ce qu'une mutation religieuse ?
Pirenne-Delforge, Vinciane ULg; Scheid, John

in Bonnet, Corinne; Bricault, Laurent (Eds.) Panthée: Religious Transformations in the Graeco-Roman Empire (2013)

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See detailSatellitenbasiertes Kollisionsvermeidungssystem
Christen, Fréderic ULg; Katriniok, Alexander; Eckstein, Lutz et al

in Eckstein, Lutz; Tschöke, Helmut; Krahl, Jürgen (Eds.) et al Innovative Automobiltechnik IV (2013)

Gegenwärtig entwickelt die RWTH Aachen University im Rahmen des Projekts "Galileo above" (Anwendungszentrum für bodengebundenen Verkehr ) ein Kollisionsvermeidungssystem (Collision Avoidance System, CAS ... [more ▼]

Gegenwärtig entwickelt die RWTH Aachen University im Rahmen des Projekts "Galileo above" (Anwendungszentrum für bodengebundenen Verkehr ) ein Kollisionsvermeidungssystem (Collision Avoidance System, CAS) unter Einbeziehung von Galileo-Daten. Ziel des CAS ist - wie der Name suggeriert - Fahrzeuge zu erkennen, die sich auf Kollisionskurs mit dem eigenen Fahrzeug befinden und automatisch eine kollisionsvermeidende Maßnahme (Bremsen und/oder Lenken) einzuleiten, insofern der Fahrer nicht rechtzeitig reagiert. Der begrenzte Erfassungsbereich und die Einschränkungen, der die verwendete kosten-optimierte Sensorik unter unterschiedlichsten Umgebungsbedingungen unterliegt, sind häufig ein begrenzender Faktor für die Realisierbarkeit und Robustheit von Fahrerassistenzsystemen (FAS). Der Einsatz von GNSS (Global Navigation Satellite System) in Verbindung mit einer digitalen Karte und Fahrzeug-zu-Fahrzeug- bzw. Fahzeug-zu-Infrastruktur-Kommunikation bietet das Potenzial, den Erfassungsbereich der Sensorik deutlich zu erweitern und diese unter schwierigen Umgebungsbedingungen zu stützen. Für die Entwicklung des CAS wird das Galileo Testzentrum automotiveGATE in Al-denhoven genutzt. Das automotiveGATE erweitert das Aldenhoven Testing Center um sogenannte Pseudoliten (Pseudo-Satelliten), welche Galileo-ähnliche Navigati-onsdaten in einem begrenzten Gebiet ausstrahlen. Das automotiveGATE ermöglicht somit die Entwicklung und Erprobung von Galileo-basierten Applikationen vor der Inbetriebnahme des eigentlichen Galileo-Satellitennavigationssystems. Im Rahmen dieses Beitrags werden Erläuterungen zur Perzeption und Sensorfusion, zur Deeskalationsstrategie und Eingriffsentscheidung sowie zu Testergebnissen bei Auffahrsituationen des CAS gegeben. [less ▲]

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See detailEscouloubre Piano Key weir: prototype versus scale models
Erpicum, Sébastien ULg; Silvestri, Aurélien ULg; Dewals, Benjamin ULg et al

in Erpicum, Sébastien; Laugier, Frédéric; Pfister, Michael (Eds.) et al Labyrinth and Piano Key Weirs II - PKW 2013 (2013)

A 1.77 m high piano key weir in operation on the Escouloubre balance basin enabled the observation of real size flows for discharges ranging from 1.2 to 10 m³/s, corresponding to upstream heads ranging ... [more ▼]

A 1.77 m high piano key weir in operation on the Escouloubre balance basin enabled the observation of real size flows for discharges ranging from 1.2 to 10 m³/s, corresponding to upstream heads ranging from 11 to 48 cm. These observations are depicted and compared to the results gained on three physical models of the weir, built and operated considering a Froude similitude and geometric scale factors of, respectively, 1:7, 1:15 and 1:25. The study highlights the scale effects which may affect piano key weirs scale model studies and provides criteria to limit them. In particular, the results analysis shows that the scale models succeed in representing the flow conditions on the weir when the model upstream head is higher than 60 mm, and succeed in predicting the weir discharge capacity when the model upstream head is higher than 30 mm. [less ▲]

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See detailDrame et récit de l'événement : qu'arrive-t-il au lecteur ?
Servais, Christine ULg

in Langage, discours, événement (2013)

On analyse ici les manifestations discursives de la contradiction que constitue en soi, pour le discours médiatique, un événement, et ce en faisant porter l'interrogation sur le récepteur. Il s'agit de se ... [more ▼]

On analyse ici les manifestations discursives de la contradiction que constitue en soi, pour le discours médiatique, un événement, et ce en faisant porter l'interrogation sur le récepteur. Il s'agit de se demander comment le média relaie le choc que constitue l'événement en nouant ensemble deux affirmations : l'événement fait quelque chose au discours médiatique et celui-ci fait quelque chose au lecteur. Cette dimension performative du discours est soutenue par la déconstruction derridienne du signe linguistique et par la notion de "partage du sensible" de Jacques Rancière. [less ▲]

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See detailImpact of different scenarios related to the new Common Agricultural Policy on farm income in Wallonia
Burny, Philippe ULg; Terrones Gavira, François ULg; Habran, Maxime ULg

in Lorencowicz, Edmund; Uziak, Jacek; Huyghebaert, Bruno (Eds.) VI International Scientific Symposium "Farm Machinery and Processes Management in Sustainable Agriculture" : Symposium Proceedings (2013)

The Common Agricultural Policy (CAP) has been reformed several times since the treaty of Rome in 1958. For the period 2014-2020 at the European level, a new CAP had to be agreed upon by the 27 Member ... [more ▼]

The Common Agricultural Policy (CAP) has been reformed several times since the treaty of Rome in 1958. For the period 2014-2020 at the European level, a new CAP had to be agreed upon by the 27 Member States and the EU parliament. Discussions were launched in 2010 and several proposals were made. In Belgium, as agricultural policy is regionalized, the Walloon Minister for Agriculture decided to support academic research in order to assess the possible impact of different scenarios on farm income, and so to help the regional authorities to take decisions when the EU legislation would be adopted, giving a large set of possibilities to the Members States/regions. So, different scenarios were defined with the partners of the administration, including farmers' unions, and their impacts on farm income were calculated. [less ▲]

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See detailEvaluation de la durabilité des productions porcines en Wallonie : développement d'un outil de modélisation
Picron, Pascale ULg; Boudry, Christelle ULg; Dochain, Denis et al

in 45èmes Journées de la Recherche Porcine (2013)

Garantir la durabilité d’une filière de production implique d’évaluer son impact sur les trois dimensions du développement durable : (1) maîtrise des impacts sur l’environnement, (2) viabilité économique ... [more ▼]

Garantir la durabilité d’une filière de production implique d’évaluer son impact sur les trois dimensions du développement durable : (1) maîtrise des impacts sur l’environnement, (2) viabilité économique, (3) attentes sociétales des éleveurs, des citoyens et des consommateurs. Cette recherche s’inscrit dans le cadre de la révision, par les autorités publiques de Wallonie (Belgique), des critères minimaux permettant la reconnaissance de la qualité différenciée axés sur les 3 piliers de la durabilité. Elle consiste à développer un outil informatique de modélisation mathématique du fonctionnement technico-environnemental de la production porcine et de ses impacts socio-économiques. Le programme est développé dans Matlab. Le modèle s’articule autour des différentes composantes des systèmes de production selon le paradigme orienté-objet. Les nouveaux critères de différenciation qui définiront de nouveaux labels axés sur des attributs de durabilité en constituent les variables motrices : taille de l’exploitation, origine des aliments et des matières premières, logement, indépendance énergétique, effluents, etc. Les impacts sont relevés à chaque étape de production jusqu’à la sortie du porc sur pied de la ferme selon la norme « Analyse de Cycle de Vie » (ACV). L’évaluation environnementale utilise des modèles mécanistiques de flux de composés chimiques, convertis en indicateurs ACV. L’analyse de la dimension sociale s’appuie sur une base de données intégrée, comprenant le temps de travail. Enfin, un modèle économique attestera du dernier volet. L’outil finalisé permettra de prédire les conséquences de choix opérationnels liés aux critères de qualité différenciée au niveau d’une exploitation. [less ▲]

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See detailDie Geheimnisse der Schrift: Heinrich von Kleists Poetik der Verschlossenheit und das Prinzip der Verschiebung in seinen Texten
Küpper, Achim ULg

in Brittnacher, Hans Richard; von der Lühe, Irmela (Eds.) Risiko – Experiment – Selbstentwurf. Kleists radikale Poetik (2013)

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See detailEarthquakes, Landslides, Dams and Reservoirs in the Tien Shan, Central Asia
Havenith, Hans-Balder ULg; Abdrakhmatov, Kanatbek; Torgoev, Isakbek et al

in Margottini, Claudio; Sassa, Kyoji (Eds.) Landslide Science and Practice (2013)

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See detailGrammatical Markers and Grammatical Relations in the Simple Clause in Old French
Mazziotta, Nicolas ULg

in Hajičovà, Eva; Gerdes, Kim; Wanner, Leo (Eds.) Proceedings of the Second International Conference on Dependency Linguistics (DepLing 2013) (2013)

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See detailL’ethnoarchivage zápara ou les commissaires de l’immatériel
Bilhaut, Anne-Gaël ULg

in Bergeron, Y.; Ferey, V. (Eds.) Archives et musées : le théâtre du patrimoine (France-Canada) (2013)

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See detailWhither probabilistic security management for real-time operation of power systems ?
Karangelos, Efthymios ULg; Panciatici, Patrick; Wehenkel, Louis ULg

in Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid (IREP), 2013 IREP Symposium (2013)

This paper investigates the stakes of introducing probabilistic approaches for the management of power system’s security. In real-time operation, the aim is to arbitrate in a rational way between ... [more ▼]

This paper investigates the stakes of introducing probabilistic approaches for the management of power system’s security. In real-time operation, the aim is to arbitrate in a rational way between preventive and corrective control, while taking into account i) the prior probabilities of contingencies, ii) the possible failure modes of corrective control actions, iii) the socio-economic consequences of service interruptions. This work is a first step towards the construction of a globally coherent decision making framework for security management from long-term system expansion, via mid-term asset management, towards short-term operation planning and real-time operation. [less ▲]

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See detailOptimized Look-Ahead Trees: Extensions to Large and Continuous Action Spaces
Jung, Tobias ULg; Ernst, Damien ULg; Maes, Francis

in Proc. of IEEE Symposium on Adaptive Dynamic Programming and Reinforcement Learning (ADPRL'13) (2013)

This paper studies look-ahead tree based control policies from the viewpoint of online decision making with constraints on the computational budget allowed per decision (expressed as number of calls to ... [more ▼]

This paper studies look-ahead tree based control policies from the viewpoint of online decision making with constraints on the computational budget allowed per decision (expressed as number of calls to the generative model). We consider optimized look-ahead tree (OLT) policies, a recently introduced family of hybrid techniques, which combine the advantages of look-ahead trees (high precision) with the advantages of direct policy search (low online cost) and which are specifically designed for limited online budgets. We present two extensions of the basic OLT algorithm that on the one side allow tackling deterministic optimal control problems with large and continuous action spaces and that on the other side can also help to further reduce the online complexity. [less ▲]

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See detailHealth screening to identify opportunities to improve preventive medicine in cats and dogs:focus on nutrition status
Diez, Marianne ULg; Picavet, Philippe; Ricci, Rebecca et al

in Hesta, Myriam (Ed.) Proceedings of the 17 th European Society of Veterinary and Comparative Nutrition Congress (2013)

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See detailPremiers enseignements de l’étude DESCENDANCE : prévalence des dysglycémies méconnues chez des apparentés de diabétiques de type 2 sur deux générations
Cosson, E; Gourdy, p; Penformis, A et al

in Résumés des communications de la réunion scientifique de la SFD 2013 (2013)

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See detailEstetrol: a new fetal estrogen with antioxidative and neuroprotective activity in the newborn
Tskitishvili, Ekaterine ULg; Nisolle, Michelle ULg; Noël, Agnès ULg et al

in Estetrol attenuates neonatal hypoxic-ischemic brain injury (2013)

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See detailRotation Effects as Possible Responsible for the Surface Effects on the Sun and Solar-Type Stars
Suárez, J. C.; Goupil, M. J.; Reese, Daniel ULg et al

in Suárez, Juan Carlos; Garrido, Rafael; Balona, Luis A. (Eds.) et al Stellar Pulsations (2013)

One of the main sources of uncertainty in the asteroseismic models of the Sun and solar-like stars is the poor match between predicted oscillation frequencies and observed ones in the very high frequency ... [more ▼]

One of the main sources of uncertainty in the asteroseismic models of the Sun and solar-like stars is the poor match between predicted oscillation frequencies and observed ones in the very high frequency domain. Today, effects of turbulence, diffusion, etc., i.e., the so-called "surface effects" are signaled as possible responsible for such a discrepancy. We show that the effect of the stellar deformation due to rotation is of the same order or even larger than these effects. We show that rotation effects, are important for the asteroseismic analysis of the Sun and solar-like stars and they cannot be neglected when modeling such stars. [less ▲]

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See detailDepositional facies settings and geochemical proxies of Late Devonian sequences in northwestern Thailand.
Konighsof; Da Silva, Anne-Christine ULg; Suttner et al

in ICPSEA3 2013: The 3rd International Conference on the Palaeontology of South-East Asia. Abstract book (2013)

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See detailAxisymmetric transient modelling of a wind turbine foundation in cohesionless soil using the Prevost’s model
Cerfontaine, Benjamin ULg; Levasseur, Séverine ULg; Charlier, Robert ULg

in Computational Methods in Marine Engineering (2013)

Suction caissons are more and more used for offshore foundations. This paper deals with the cyclic modelling of suction caissons using the Prevost's model. The case study is a 8m large diameter embedded ... [more ▼]

Suction caissons are more and more used for offshore foundations. This paper deals with the cyclic modelling of suction caissons using the Prevost's model. The case study is a 8m large diameter embedded in dense No. 0 Lund sand. Parameters for the model are calibrated using drained triaxial tests. A parametric study concerning the influence of the constitutive law, the skirt length and permeability is carried out. [less ▲]

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See detailThe astronomical calibration of the Givetian (Middle Devonian) time scale (Dinant Synclinorium, Belgium).
De Vleeschouwer; Boulvain, Frédéric ULg; Da Silva, Anne-Christine ULg et al

in American Geophysical Union Fall Meeting, Abstract (2013)

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See detailLe rôle du commerce frontalier des produits alimentaires avec le Rwanda dans l'approvisionnement des ménages de la ville de Bukavu (province du Sud-Kivu)
Vwima Ngezirabona, Stany ULg; Mastaki, Jean-Luc; Lebailly, Philippe ULg

in Brot, Jean (Ed.) Les Cahiers de l'Association Tiers-Monde n° 28-2013 : XXVIIIes Journées sur le Développement "Mobilités internationales, déséquilibres et développement : vers un développement durable et une mondialisation décarbonée ?" (2013)

Ce travail s'inscrit dans un cadre géographique regroupant deux pays (RDC et Rwanda) appartenant à la Communauté Économique des Pays des Grands Lacs (CEPGL) avec le Burundi. Le commerce des produits ... [more ▼]

Ce travail s'inscrit dans un cadre géographique regroupant deux pays (RDC et Rwanda) appartenant à la Communauté Économique des Pays des Grands Lacs (CEPGL) avec le Burundi. Le commerce des produits alimentaires entre population transfrontalière est une réalité: Elle est facilitée par un ensemble d'accords et certaines pratiques de proximité qui n'ont jamais été mises en cause, même pendant les périodes des guerres. Les flux importants de produits alimentaires enregistrés lors de la traversée du corridor frontalier entre Bukavu (RDC) et le district de Rusizi (Rwanda), les difficultés et risques auxquels les petits commerçants et les ménages sont soumis, constituent des éléments qui ont guidé le choix de l'approche conceptuelle. Lors de la traversée des frontières, on peut se rendre compte que la ville de Bukavu et le district de Rusizi (Rwanda) ont des fonctions bien réparties. Alors que Bukavu fonctionne comme un grand centre de consommation, le district de Rusizi s'est positionné stratégiquement comme une ville entrepôt (Soule et Musila, 2005). Ces approvisionnements à partir de l'étranger solidifient encore la dépendance alimentaire de la province du Sud-Kivu en général et la ville de Bukavu en particulier. Ce problème mérite une étude particulière et a guidé aussi le choix de ce travail. Le choix de l'approche conceptuelle de cette étude a été aussi motivé par le souci d'étalonner la contribution du commerce frontalier à la paix, à la lutte contre la pauvreté et à la sécurité alimentaire. Ceci constitue des réponses à plusieurs préoccupations de développement et d'intégration régionale. Dans ce cadre, plusieurs auteurs, comme Johnson et al. (2009), Cling (2006), Tegera et al. (2007), Masato Hayashikawa (2009), ont déjà montré qu'il existe un lien entre commerce, développement et lutte contre la pauvreté. Divers programmes sous-régionaux (CEPGL), régionaux (COMESA, CIRGL), internationaux (Banque mondiale) ainsi que diverses ONGs internationales (Alert International, DFID) s'intéressent à cette problématique. [less ▲]

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See detailThermal manipulations during embryogenesis induce long-lasting changes in the regulation of energy metabolism
Loyau, T.; Métayer-Coustard, S.; Crochet, S. et al

in Proceedings of the 6th Combined Workshop on Fundamental Physiology and Perinatal Development in Poultry (2013)

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