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See detailNumerical Exploration of Oscillation Modes in Rapidly Rotating Stars
Ballot, Jérôme; Lignières, François; Reese, Daniel ULg

in Goupil, M.; Belkacem, K.; Neiner, C. (Eds.) et al Studying Stellar Rotation and Convection (2013)

In this chapter, we show that two-dimensional oscillation codes help us to improve our knowledge of the effects of rapid rotation on acoustic (p) and gravity (g) modes. We first discuss how to solve the ... [more ▼]

In this chapter, we show that two-dimensional oscillation codes help us to improve our knowledge of the effects of rapid rotation on acoustic (p) and gravity (g) modes. We first discuss how to solve the full problem of stellar oscillations in rapidly rotating stars by including the effects of the Coriolis force as well as those of the centrifugal distortion. We illustrate the development and the validation of a 2-D code using the Two-dimensional Oscillation Program (TOP) as an example. We then describe what strategies are being developed to explore the p- and g-mode spectra, how effective these methods are, and what intrinsic difficulties they face. In the last part of this chapter, we present results obtained with these techniques. [less ▲]

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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 detailComposite joints under M-N at elevated temperatures - Experimental investigations and analytical model
Demonceau, Jean-François ULg; Haremza, Cécile; Jaspart, Jean-Pierre ULg et al

in Proceeding of the Composite Construction VII conference (2013)

The Eurocodes recognise robustness as a way to ensure the structural integrity of a building frame subjected to an unforeseen event and therefore to avoid a so-called “progressive failure” mode in extreme ... [more ▼]

The Eurocodes recognise robustness as a way to ensure the structural integrity of a building frame subjected to an unforeseen event and therefore to avoid a so-called “progressive failure” mode in extreme loading situations. However few practical guidelines exist nowadays which would allow a designer to design a structure accordingly. Within the European RFCS ROBUSTFIRE project, the behaviour of steel and composite car parks subjected to localised fire leading to a column loss was investigated. Under such a scenario, the beam-to-column joints play a key role in the global structural response. Indeed, these joints, initially loaded in bending, may be subjected to elevated temperatures and to combined axial load “N” and bending moment “M”. In this paper, a methodology to predict the mechanical response of bolted composite beam-to-column joints at elevated temperatures under M-N is presented and validated through comparison to experimental tests conducted at the University of Coimbra. [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 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 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 detailScientific and Technological Payloads Aboard the B3LSat CubeSat of the QB50 Network
Dell'Elce, Lamberto ULg; Kerschen, Gaëtan ULg; Delabie, Tjorven et al

in Proceedings of the 2nd IAA Conference on University Satellite Missions and Cubesat Workshop (2013)

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See detailDepositional facies settings and geochemical proxies of Late Devonian sequences in northwestern Thailand.
Königshof, Peter; Racki, G.; Savage, N. et al

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

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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 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 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 detailDe la signification du Noaillien et du Rayssien
Touzé, Olivier ULg

in de la Heras, Carmen; Lasheras, José Antonio; Arrizabalaga, Alvaro (Eds.) et al Pensando el Gravetiense: nuevos datos para la región cantábrica en su contexto peninsular y pirenaico (2013)

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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 detailL'actualité en matière de voiries
Donnay, Luc ULg

in Leleu, Yves-Henri (Ed.) Chroniques notariales (2013)

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See detailChanging Architecture's materiality and meaning through digital culture
Delvaux, Frederic ULg; Bianchi, Romuald ULg; Defawes, Georges ULg et al

in Proceedings of the international conference Changing cities : spatial, morphological, formal and socio-economic dimensions (2013)

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See detailEntre "bien être" et "bien faire", où va l'ergonomie
Nyssen, Anne-Sophie ULg

in Proceeding du 48 me congrès de la Self (2013)

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See detailDu destin des archives en Islam. Analyse des données et éléments de réponse
Bauden, Frédéric ULg

in Aigle, Denise; Péquignot, Stéphane (Eds.) La Correspondance entre souverains, princes et cités-états. Approches croisées entre l'Orient musulman, l'Occident et Byzance (XIIIe-début XVIe siècle) (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 detailLocalizing and comparing weight maps generated from linear kernel machine learning models
Schrouff, Jessica ULg; CREMERS, Julien ULg; GARRAUX, Gaëtan ULg et al

in 2013 Third International Workshop on Pattern Recognition in NeuroImaging (PRNI 2013): proceedings (2013)

Recently, machine learning models have been applied to neuroimaging data, allowing to make predictions about a variable of interest based on the pattern of activation or anatomy over a set of voxels ... [more ▼]

Recently, machine learning models have been applied to neuroimaging data, allowing to make predictions about a variable of interest based on the pattern of activation or anatomy over a set of voxels. These pattern recognition based methods present undeniable assets over classical (univariate) techniques, by providing predictions for unseen data, as well as the weights of each voxel in the model. However, the obtained weight map cannot be thresholded to perform regionally specific inference, leading to a difficult localization of the variable of interest. In this work, we provide local averages of the weights according to regions defined by anatomical or functional atlases (e.g. Brodmann atlas). These averages can then be ranked, thereby providing a sorted list of regions that can be (to a certain extent) compared with univariate results. Furthermore, we defined a “ranking distance”, allowing for the quantitative comparison between localized patterns. These concepts are illustrated with two datasets. [less ▲]

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See detailOrganic Rankine Cycle Systems: A Techno-Economic Overview
van den Broeck, Martijn; Quoilin, Sylvain ULg; Declaye, Sébastien ULg et al

in Proceedings of EMC 2013 (2013)

The potential of organic Rankine cycle (ORC) technology for waste heat recovery in industry is discussed. This survey includes a market overview, a discussion of the key differences with steam turbine ... [more ▼]

The potential of organic Rankine cycle (ORC) technology for waste heat recovery in industry is discussed. This survey includes a market overview, a discussion of the key differences with steam turbine technology, some main selection issues (components and working fluid) and an outlook on the future of the technology. [less ▲]

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See detailTraitement de la coordination dans le Syntactic Reference Corpus of Medieval French (SRCMF)
Mazziotta, Nicolas ULg

in Casanova Herrero, Emili; Calvo Rigual, Cesareo (Eds.) Actes du XXVIe Congrès de Linguistique et Philologie Romanes (2013)

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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 detailPotential use of mid-infrared milk spectrum in pregnancy diagnosis of dairy cows
Laine, Aurélie ULg; Goubau, Amaury; Dale, Laura-Monica et al

in Book of Abstracts of the 64th Annual Meeting of the European Federation of Animal Science (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 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 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 detailDéterminants de la masse grasse et de la masse maigre chez les prématurés
Simon, Laure; Frondas-Chauty, Anne; SENTERRE, Thibault ULg et al

in Société Française de Néonatologie (Ed.) XXèmes Journées Francophones de Recherche en Néonatologie (2013)

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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 detailAggregating Optimistic Planning Trees for Solving Markov Decision Processes
Kedenburg, Gunnar; Fonteneau, Raphaël ULg; Munos, Rémi

in Advances in Neural Information Processing Systems 26 (2013) (2013)

This paper addresses the problem of online planning in Markov decision processes using a randomized simulator, under a budget constraint. We propose a new algorithm which is based on the construction of a ... [more ▼]

This paper addresses the problem of online planning in Markov decision processes using a randomized simulator, under a budget constraint. We propose a new algorithm which is based on the construction of a forest of planning trees, where each tree corresponds to a random realization of the stochastic environment. The trees are constructed using a “safe” optimistic planning strategy combining the optimistic principle (in order to explore the most promising part of the search space first) with a safety principle (which guarantees a certain amount of uniform exploration). In the decision-making step of the algorithm, the individual trees are aggregated and an immediate action is recommended. We provide a finite-sample analysis and discuss the trade-off between the principles of optimism and safety. We also report numerical results on a benchmark problem. Our algorithm performs as well as state-of-the-art optimistic planning algorithms, and better than a related algorithm which additionally assumes the knowledge of all transition distributions. [less ▲]

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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 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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See detailIlum-išar et Apil-kīn : deux nouvelles inscriptions de Mari
Colonna d'Istria, Laurent ULg; Rendu Loisel, Anne-Caroline

in Feliu, L.; Llop, J.; Millet Albà, A. (Eds.) et al Time and History in the Ancient Near East-Proceedings of the 56th Rencontre Assyriologique Internationale at Barcelona 26–30 July 2010 (2013)

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See detail"Penser la technique" : clé pour un développement durable
du Jardin, Patrick ULg

in Ypersele, Jean-Pascal; Hudon, Marek (Eds.) 1er colloque interdisicplinaire du développement durable : Namur 31 janvier au 1er février 2013 (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 detailMaternal transisition of dietary omega-3 fatty acids: effects on zootechnical performance and health status of the broiler progeny
Koppenol, A.; Franssens, L.; Everaert, Nadia ULg et al

in Proceedings of the 17th European Society of Veterinary and Comparative Nutrition Congress (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 detailEffects of aging on task- and stimulus-related attention during a working memory task
Kurth, Sophie ULg; Hagelstein, Catherine ULg; Collette, Fabienne ULg et al

in Proceedings of the Annual Meeting of the Belgian Association for Psychological Sciences (2013)

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See detailEffect of Age and Maternal Dietary Addition of Omega-3 Fatty Acids EPA and DHA in Broiler Breeders on Incubation Performance
Koppenol, A.; Buyse, 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 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 detailLes matières colorantes en contexte Solutréen : Combe Saunière (Dordogne), Fressignes (Indre) et Les Maîtreaux (Indre-et-Loire)
Salomon, Hélène ULg; Vignaud, Colette; Aubry, Thierry et al

in Actes du Colloque : Le Solutréen... 40 ans après la publication du Smith’66 (2013)

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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 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 detailL'avènement des Hommes modernes en Belgique
Otte, Marcel ULg; Noiret, Pierre ULg

in Bodu, Pierre; Chehmana, Lucie; Klaric, Laurent (Eds.) et al Le Paléolithique supérieur ancien de l'Europe du Nord-Ouest (2013)

In Belgium, Palaeolithic research goes back to the early 19th century, in the wake of mining and quarry work. Geology and paleontology developed early and rapidly and were economically important. As a ... [more ▼]

In Belgium, Palaeolithic research goes back to the early 19th century, in the wake of mining and quarry work. Geology and paleontology developed early and rapidly and were economically important. As a result, the earliest human history was reconstructed here entirely independently, by defining the Mousterian (Engis, 1830), Aurignacian (Montaigle), Gravettian (Trou Magrite) and Magdalenian (Chaleux) periods. Belgium, due to its central position, is in addition particularly representative of the wave of "modernity" that suddenly was adopted across northwest Europe, overlying a highly diverse and innovative cultural base during the time of the Neandertals. At this point in time, as in others, Belgium played the role of intermediary and incubator between the British Isles and the Rhineland, extending as far as the Loire. [less ▲]

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See detailThe scent of inbreeding: male sex pheromones betray inbred males
Nieberding, C.; Van Bergen, E.; Brakefield, P. et al

in Chem. Senses (2013)

Inbreeding depression results from mating among genetically related individualsand impairs reproductive success. The decrease in male matingsuccess is usually attributed to an impact on multiple fitness ... [more ▼]

Inbreeding depression results from mating among genetically related individualsand impairs reproductive success. The decrease in male matingsuccess is usually attributed to an impact on multiple fitness-related traitsthat reduce the general condition of inbred males. Here, we find that the productionof the male sex pheromone is reduced significantly by inbreeding inthe butterfly Bicyclus anynana. Other traits indicative of the general condition,including flight performance, are also negatively affected in malebutterflies by inbreeding. Yet, we unambiguously show that only the productionof male pheromones affects mating success. Thus, this pheromonesignal informs females about the inbreeding status of their mating partners.We also identify the specific chemical component, hexadecanal, probablyresponsible for the decrease in male mating success. Our results advocategiving increased attention to olfactory communication as a major causalfactor of mate-choice decisions and sexual selection.Published in the Proceedings of the Royal Society of London (2013) in press. [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 detailErweiterung der Einzeltropfenmodelle zur Simulation von Extraktionskolonnen mittels „ReDrop“.
Cvetkovic, E; Pfennig, Andreas ULg

in Book of Abstracts zum 9 (2013)

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See detail(Bio)synthesis, extraction and purification of garlic derivatives showing therapeutic properties
DETHIER, Bérénice ULg; Nott, Katherine ULg; Fauconnier, Marie-Laure ULg

in Smagghe, Guy; Boeckx, Pascal; Bossier, Peter (Eds.) et al Communications in Agricultural and Applied Biosciences 2013 (2013)

Garlic has been used worldwide for centuries for its taste but also for its health benefits. Garlic's therapeutic compounds are mostly organosulfur compounds, recognized for their antioxidant, anticancer ... [more ▼]

Garlic has been used worldwide for centuries for its taste but also for its health benefits. Garlic's therapeutic compounds are mostly organosulfur compounds, recognized for their antioxidant, anticancer, anti-inflammatory and antimicrobial activity and their effect on cardiovascular diseases (reviewed by Block, 2010). When the cloves are crushed, allicin is synthesized as the vacuolar enzyme alliinase meets its substrate, the cytoplasmic alliin. Allicin is unstable and undergoes rearrangements to form three main groups of derivatives: allyl sulfides, ajoenes and vinyldithiins. The garlic processing method has a major influence on the products released both in terms of chemical composition and yields. For example, the type of medium (aqueous or oily) and the temperature can favour the formation of specific compounds. Our work aims at studying the influence of - the garlic origin, - the reaction conditions and - the extraction procedures (solvent, microwaves) on the organosulfur compounds formed. Particular attention is given to the stereochemistry and the stability of the compounds. Better understanding of the formation of high value natural molecules is important in order to lead further studies on the biological activity of the compounds or to use them as nutraceuticals. [less ▲]

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See detailL'enseignement de l'informatique en Belgique francophone : état des lieux
Joris, Noémie ULg; Henry, Julie ULg

in Sciences et technologies de l'information et de la communication (STIC) en milieu éducatif, Clermont-Ferrand : France (2013) (2013)

Cet article dresse la liste de ce qui constitue actuellement l'enseignement de l'informatique en Belgique francophone. À travers la description succincte des programmes proposés pour l'enseignement ... [more ▼]

Cet article dresse la liste de ce qui constitue actuellement l'enseignement de l'informatique en Belgique francophone. À travers la description succincte des programmes proposés pour l'enseignement secondaire ordinaire, les manquements et les avancées sont pointés du doigt. Les auteurs analysent l'existant, font des réflexions, tirent des constats et cherchent ainsi des réponses aux questions qui se posent trop souvent. Avec quel(s) bagage(s) les élèves arrivent-ils aux portes des études supérieures ? Sur quelles ressources peuvent se reposer les enseignants pour construire leur cours ? Quelle informatique enseigner ? Informatique et TIC : quel(s) lien(s) ? Quelle place pour les TIC dans les programmes actuels ? [less ▲]

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See detailSurface properties of concrete and criteria for adhesion of repair systems
Courard, Luc ULg; Garbacz, Andrzej; Piotrowski, Tomasz et al

in Van Gemert, Dionys; Kabashi, Naser; Nushi, Violeta (Eds.) et al Proceedings of the 1st Symposium on Polymers in Concrete (2013)

Before any repair operation, an effective assessment of the concrete substrate has to be performed. Usually next to the surface reparation of concrete, evaluation of the cohesion of the superficial ... [more ▼]

Before any repair operation, an effective assessment of the concrete substrate has to be performed. Usually next to the surface reparation of concrete, evaluation of the cohesion of the superficial concrete is requested for adhesion and durability reasons. Many authors describe the influence of the surface preparation technique on the superficial cohesion of concrete or the adhesion. However, the real effects of surface preparation technique only begin to be investigated in terms of superficial microcracking or roughness quantification. This project was performed in regards to the influence of concrete substrate strength and preparation technique efficiency. The effect of the concrete removal/preparation technique is most likely dependent upon the nature and the quality of the concrete substrate. Preparation techniques are compared from the point of view of concrete removing but also potential deterioration. The visual observation of the concrete surfaces indicates that the high pressure water jetting technique induces a particular texture characterized by large waves mostly parallel to the water flow. The concrete slabs have afterwards been covered with a Self-Compacting Repair Mortar and adhesion has been characterized. [less ▲]

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See detailThe Common Agricultural Policy towards 2020
Burny, Philippe ULg; Habran, Maxime ULg; Terrones Gavira, François 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) defined in the Treaty of Rome and implemented since 1962, has always been under reform, mainly in 1992, 1999, 2003 and 2009. However, after the last enlargements and ... [more ▼]

The Common Agricultural Policy (CAP) defined in the Treaty of Rome and implemented since 1962, has always been under reform, mainly in 1992, 1999, 2003 and 2009. However, after the last enlargements and the international financial crisis, a new reform was needed for the budget period going from 2014 to 2020. The first ideas were launched by the EU Commissionner for Agriculture, M. Dacian Ciolos, in 2010. After three years of discussions, the political agreement between the Council of Ministers, the EU Parliament and the Commission was reached in June 2013. So, this paper presents the main decisions of this agreement. [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 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 detailKarenwebberite, Na(Fe,Mn)2+PO4, a new phosphate mineral species from the Malpensata pegmatite, Lecco province, Italy.
Vignola, P; Hatert, Frédéric ULg; Fransolet, André-Mathieu ULg et al

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

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See detailEffect of a fibrous diet on growth performance, carcass characteristics and gut health of fattening pigs
Philippe, François-Xavier ULg; Antoine, Nadine ULg; Cabaraux, Jean-François ULg et al

in Proceedings of the 3rd Scientific Meeting of the Faculty of Veterinary Medicine (2013)

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See detailMyeloid Hif1alpha counteracts allergic airway sensitization in mice through macrophage-mediated immunoregulation
Toussaint, Marie ULg; Fievez, Laurence ULg; Drion, Pierre ULg et al

in Abstract book of Keystone Symposium "Myeloid Cells: Regulation and Inflammation" (2013)

Hypoxia Inducible Factor (HIF) has important roles in promoting pro-inflammatory and bactericidal functions in myeloid cells. Conditional genetic ablation of its major subunit Hif1alpha in the myeloid ... [more ▼]

Hypoxia Inducible Factor (HIF) has important roles in promoting pro-inflammatory and bactericidal functions in myeloid cells. Conditional genetic ablation of its major subunit Hif1alpha in the myeloid lineage consequently results in decreased inflammatory responses in classical models of acute inflammation in mice. In contrast, we observed that mice conditionally deficient for Hif1alpha in myeloid cells display enhanced sensitivity to the development of airway allergy to the experimental allergen ovalbumin as well as to house dust mite antigens. Following allergen exposure, these mice indeed developed enhanced allergen-specific T cell responses due to augmented activation of lung dendritic cells. Further analyses supported the idea that upon allergen exposure, MyD88-dependent upregulation of Hif1alpha boosts the expression of the immunosuppressive cytokine Interleukin (IL)-10 by lung interstitial macrophages. Interstitial macrophage-derived IL-10 in turn counteracts allergen-induced lung dendritic cell activation, consequently preventing the development of allergen-specific T cell responses. Thus, this study supports that, in addition to its known pro-inflammatory activities, myeloid Hif1alpha possesses immunoregulatory functions implicated in the prevention of airway allergy. [less ▲]

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See detailL’imaginaire linguistique des historiens de la littérature, en France et en périphéries
Provenzano, François ULg

in Moussa, Sarga (Ed.) Le XIXe siècle et ses langues (2013)

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See detailProfiles of pregnancy-associated glycoprotein (PAG) concentrations during gestation in swamp buffalo
Van Hahn, N; Viet Linh, N; Melo de Sousa, Noelita ULg et al

in Proceedings of the 10th World Buffalo Congress and 7th Asian Buffalo Congress (2013)

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See detailFatty Acid Composition of Yolk, Residual Yolk and Liver at different Ages in Broilers hatched from 43-week-old Omega-3 fed Breeders
Koppenol, A.; Delezie, E.; Everaert, Nadia ULg et al

in Proceedings of The International Congress on Advancements in Poultry Production in the Middle East and African States (2013)

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See detailUsing agro-hydrology to adapt to climate evolutions
Degré, Aurore ULg; Sohier, Catherine ULg; Bauwens, Alexandra ULg et al

in Dewals, Benjamin; Fournier, Maité (Eds.) Transboundary Water Management in a Changing Climate (2013)

Natural phenomena such as floods, drought, erosion, nitrate leaching and plant growth are influenced by climate change. The Soil - Water Systems division of Gembloux Agro-Bio Tech aims at studying these ... [more ▼]

Natural phenomena such as floods, drought, erosion, nitrate leaching and plant growth are influenced by climate change. The Soil - Water Systems division of Gembloux Agro-Bio Tech aims at studying these phenomena; better understanding processes; modelling them in order to predict their change in the future and to assess their potential consequences. Then, we can propose strategies to adapt to these changes. As an agronomy faculty, we believe that adapting agriculture can play a major role in mitigating climate evolution effects at plot and catchment scales. [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 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 detailStromatoporoid diversity and growth in late Wenlock reefs and associated facies (Silurian) at Wenlock Edge, UK.
Kershaw; Da Silva, Anne-Christine ULg

in Lindskog; Mehlqvist (Eds.) Proceedings of the 3rd IGCP 591 Annual Meeting Lund, Sweden, 9–19 June 2013 (2013)

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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 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 detailClassification of MCI and AD patients combining PET data and psychological scores
Segovia-Román, Fermín ULg; Bastin, Christine ULg; Salmon, Eric ULg et al

in International Workshop on Advances in Regularization, Optimization, Kernel Methods and Support Vector Machines: theory and applications (2013)

This study’s aim was to measure the advantages of using psychological test data in the automatic classification of functional brain images in order to assist the diagnosis of neurodegenerative disorders ... [more ▼]

This study’s aim was to measure the advantages of using psychological test data in the automatic classification of functional brain images in order to assist the diagnosis of neurodegenerative disorders such as Alzheimer’s disease (AD). Several computer-aided diagnosis systems for AD based on PET images were developed. Some of them used psychological scores beside the image data in the classification step and others did not. The results show the ones that take into account the psychological scores achieve higher accuracy rates. [less ▲]

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See detailLes marbres dans les traités d’architecture français des XVIIe et XVIIIe siècles
Gilles, Isabelle ULg

in Toussaint, Jacques (Ed.) Actes du colloque : Autour des marbres jaspés (2013)

Les traités d’architecture français reflètent parfaitement l’intérêt plus ou moins appuyé pour les marbres tout au long de l’Ancien Régime. De Philibert de l’Orme à Nicolas Le Camus de Mézières, nous ... [more ▼]

Les traités d’architecture français reflètent parfaitement l’intérêt plus ou moins appuyé pour les marbres tout au long de l’Ancien Régime. De Philibert de l’Orme à Nicolas Le Camus de Mézières, nous ferons un rapide tour d’horizon du discours sur les marbres ; discours dans lequel apparaissent des questions de provenance, de couleurs, de mise en œuvre... mais également d’usage. Nous envisagerons ainsi les emplois particuliers des marbres. En effet, dans la théorie architecturale, le choix des matériaux — que la matière soit réelle ou imitée — doit répondre à des principes bien établis, autour des notions de convenance et de bienséance. Le matériau choisi et sa mise en œuvre doivent ainsi correspondre à la fois à la qualité sociale du commanditaire et à l’usage du lieu dans lequel le matériau prend place. L’emploi des marbres nous rappelle encore la dimension « totale » de cette architecture de l’Ancien Régime, pensée et écrite avec soin, dans laquelle tous les éléments œuvrent de concert. [less ▲]

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See detailLes relations père/fille dans le Roman en prose de Guillaume d'Orange
Henrard, Nadine ULg

in Füg-Pierreville, Corinne (Ed.) Les relations entre les hommes et les femmes dans la Chanson de geste. Actes du colloque international de Lyon des 28 et 29 novembre 2011 (2013)

Etude des relations entre les pères et leur(s) fille(s) dans le Cycle de Guillaume d'Orange, et en particulier dans sa mise en prose, qui récrit vers 1450 treize des vingt-quatre chansons du cycle, pour ... [more ▼]

Etude des relations entre les pères et leur(s) fille(s) dans le Cycle de Guillaume d'Orange, et en particulier dans sa mise en prose, qui récrit vers 1450 treize des vingt-quatre chansons du cycle, pour voir si ce texte tardif modifie les données des poèmes quant à ce lien de parenté. Sont étudiés les aspects affectifs de la paternité et le rôle des pères dans la destinée des filles, ce qui permet d'envisager la manière dont est traitée dans les textes littéraires la problématique du consentement des filles au moment du mariage. Alors que Boniface représente pour Hermengart un père affectueux et attentif aux souhaits de son héritière, Aymeri et Louis sont pour leurs filles respectives des pères peu impliqués, qui délèguent à Guillaume la négociation des alliances matrimoniales. C'est donc un frère ou un oncle maternel qui se substitue à un père encore actif pour régler le sort des filles. Cet effacement des pères s'explique littérairement par la volonté de promouvoir le héros éponyme du cycle en chef de clan, mais la question est de savoir une réalité historique vient soutenir ce phénomène qui substitue l'autorité du frère à celle du père. [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 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 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 detailInverse soil parameter identification of an earth and rockfill dam by genetic algorithm optimization
Vahdati, Pooya; Levasseur, Séverine ULg; Mattsson, Hans et al

in Sharing Experience for Safe and Sustainable Water Storage (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 detailUnderstanding rural economy of Kirundo farmers province in north of Burundi
Minani, Bonaventure ULg; Rurema, Déo-Guide; Lebailly, Philippe ULg

in Belgian Association of Agricultural Economists (Ed.) 2013 PHD Workshop 29-31 May Leuven : proceedings (2013)

This objective of this study is to analyze the socio-economic, political and environmental various constraints of farming systems that are on the basis of poverty observed in this area in order to ... [more ▼]

This objective of this study is to analyze the socio-economic, political and environmental various constraints of farming systems that are on the basis of poverty observed in this area in order to formulate realistic strategies for increasing the productivity and profitability of family farming in that province. [less ▲]

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See detailLes besoins sociaux et économiques de la collectivité dans le droit de l’aménagement du territoire et de l’urbanisme
Pâques, Michel ULg; Donnay, Luc ULg; Vercheval, Cécile ULg

in Delnoy, Michel; Born, Charles-Hubert; Van Damme, Nathalie (Eds.) Le droit de l’aménagement du territoire et de l’urbanisme, 50 ans après la loi organique (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 detailMicro-CT evaluation of the effect of material, donor and implantation site variability on the bone forming capacity of progenitor cell/CaP-collagen constructs implanted ectopically in nude mice
Van Hove, Astrid; Geeroms, Carla; Maréchal, Marina et al

in Abstract book User Meeting Bruker MicroCT 2013 (2013)

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See detailAre Designers Sufficiently Instructed to Make the Most Rewarding Use of the Latest Steel Codes?
Maquoi, René ULg

in 2013 SSRC Stability Conference (2013)

Series of comments stressing some points of Eurocode 3 which must be duly mastered to enable more economical design of steel structures.

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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 detailInvestigation of the determinants of the mental knowledge of public parking facilities
Cools, Mario ULg; van der Waerden, Peter; Janssens, Davy

in Proceedings of the 13th World Conference on Transport Research (2013)

This paper presents a study regarding the determinants of travellers’ mental knowledge of public parking facilities. The data regarding the mental knowledge were collected in the city of Hasselt, Belgium ... [more ▼]

This paper presents a study regarding the determinants of travellers’ mental knowledge of public parking facilities. The data regarding the mental knowledge were collected in the city of Hasselt, Belgium, by means of an internet-based questionnaire. In total 1007 respondents completed the questionnaire. Two different dependent variables were specified: the mental representation of parking facilities (known or not) and the identification of parking facilities (identified first or not). In addition, three different groups of determinants were included in the models: parking attributes, personal characteristics, and mental knowledge of the city. The data are analyzed using generalized estimating equations (GEE) models for binary data. The analyses show a considerable influence of the following parking attributes: type of parking facility, Park & Ride status, charged parking, number of places, and location of parking facility. Furthermore our study revealed that personal characteristics and mental knowledge of the city play a marginal role. [less ▲]

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See detailThe proportion of ungrazed area of the pasture (PUP) determines when forage intake and diet quality decline in grazing systems
Benvenutti, Marcelo A.; Pavetti, Daniel R.; Cangiano, Carlos A. et al

in Proceedings of the 22nd International Grassland Congress (2013)

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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 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 detailLectio bilingue, bilinguismo della lectio sull’accentazione grafica nei papiri latini: sondaggi dai PNess. II 1 e 2
Scappaticcio, Maria Chiara ULg

in Bilinguisme et digraphisme dans le monde gréco-romain: l’apport des papyrus latins (2013)

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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 detailEmploi des types de subordination dans un corpus ltin
Denooz, Joseph ULg

in Bodelot, Collette (Ed.) Morphologie, syntaxe et sémantique des subordonnants (2013)

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See detailA Trie Merging Approach with Incremental Updates for Virtual Routers
Luo, LAYONG; Xie, Gaogang; Salamatian, Kavé et al

in Annual International Conference on Computer Communications (2013)

Virtual routers are increasingly being studied, as an important building block to enable network virtualization. In a virtual router platform, multiple virtual router instances coexist, each having its ... [more ▼]

Virtual routers are increasingly being studied, as an important building block to enable network virtualization. In a virtual router platform, multiple virtual router instances coexist, each having its own FIB (Forwarding Information Base). In this context, memory scalability and route updates are two major challenges. Existing approaches addressed one of these challenges but not both. In this paper, we present a trie merging approach, which compactly represents multiple FIBs by a merged trie and a table of next-hop-pointer arrays to achieve good memory scalability, while supporting fast incremental updates by avoiding the use of leaf pushing during merging. Experimental results show that storing the merged trie requires limited memory space, e.g., we only need 10MB memory space to store the merged trie for 14 full FIBs from IPv4 core routers, achieving a memory reduction by 87% when compared to the total size of the individual tries. We implement our approach in an SRAM (Static Random Access Memory)-based lookup pipeline. Using our approach, an on-chip SRAM-based lookup pipeline with 5 external stages is sufficient to store the 14 full IPv4 FIBs. Furthermore, our approach can guarantee a minimum update overhead of one write bubble per update, as well as a high lookup throughput of one lookup per clock cycle, which corresponds to a throughput of 251 million lookups per second in the implementation. [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 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 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 detailApplication of Ultrasonic Spectroscopy to Quantify Sedimentation of Polydisperse Emulsions
Aunyindee, I; Cano Castro, A; Chuttrakul et al

in Minisymposium der Verfahrenstechnik (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 detailLa typologie des objets sémiotiques dans le Résumé. Exercice de lecture
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 detailArt on the lagoon: Eliasson at the Biennale of Venice
Szanto, Catherine ULg; Gay, Fabrizio; Ballarin, Matteo

in Newman, Conor; Nussaume, Yann; Pedroli, Bas (Eds.) Landscape and Imagination. Towards a new baseline for education in a changing world (2013)

The Biennales of Venice are not limited to exhibitions in national pavilions. Every year artists and architects choose to confront the site and more specifically, the lagoon. In the edition of 2005, the ... [more ▼]

The Biennales of Venice are not limited to exhibitions in national pavilions. Every year artists and architects choose to confront the site and more specifically, the lagoon. In the edition of 2005, the artist O. Eliasson proposed an installation (Your black horizon, 2005) where the visitors left the wide expanse and intense light of the lagoon to enter a darkened enclosed space with subtle light effects. These aesthetic experiences enhanced the visitors’ perception of light by changing the usual spatiality and temporality of colour. We will analyze the role of memory in the rite of the visit, and look at how the museal strategies of the artist create a play with spatial memory and sense of orientation in relation to the outdoor space of the lagoon. [less ▲]

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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 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 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 detailBuilding a Construction-Based Treebank of Late Egyptian. The Syntactic Layer in Ramsès
Polis, Stéphane ULg; Rosmorduc, Serge

in Polis, Stéphane; Winand, Jean (Eds.) Texts, Languages & Information Technology in Egyptology. Selected papers from the meeting of the Computer Working Group of the International Association of Egyptologists (Informatique & Égyptologie), Liège, 6-8 July 2010 (2013)

This paper reports on the construction-based Treebank currently under development in the frame-work of the Ramses Project, which aims at building a multifaceted annotated corpus of Late Egyptian texts. We ... [more ▼]

This paper reports on the construction-based Treebank currently under development in the frame-work of the Ramses Project, which aims at building a multifaceted annotated corpus of Late Egyptian texts. We describe the specifications that have been implemented and we introduce the syntactic formalism and the related representation format that are used for the syntactic annotation. Further-more, the annotation scheme is discussed with particular attention paid to its evolutionary nature. Finally, we explain the methods as well as the annotating tool, called SyntaxEditor; we conclude by addressing the question of forthcoming developments, especially the search engine and a context-sensitive parser. [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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