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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 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 detailChildren’s Knowledge About Memory: Adaptation and French Validation of a Scale to Assess it.
Geurten, Marie ULg; Catale, Corinne ULg; Meulemans, Thierry ULg

in INS Abstract Book (2013)

The present study aimed at adapting and testing a French version of Kreutzer et al.’s metamemory interview (1975) in a group of 128 children aged of 4, 6, 9, and 12. Following Fritz et al. (2010 ... [more ▼]

The present study aimed at adapting and testing a French version of Kreutzer et al.’s metamemory interview (1975) in a group of 128 children aged of 4, 6, 9, and 12. Following Fritz et al. (2010), adjustments have been made to reduce language skill contamination as well as to increase the developmental appropriateness and sensibility of the scale. Results show the emergence of two sub-scales (“strategy knowledge” and “general memory knowledge”) on the factor analysis and reveal an excellent interrater reliability as well as a good internal consistency for the global scale and two sub-scales (respectively, Cronbach α = .79; .81 and .71). As expected with regard to the literature, a significant correlation has appeared between the metamemory scale and short-term memory capacities (convergent validity). Similarly, the metamemory score has shown its ability to predict children memory performance (predictive validity). Finally, the lack of correlation between most of the scale’s items and vocabulary measurement (Peabody Picture Vocabulary Test) and the very good ability of the scale to distinguish between age groups demonstrate that the adaptations made to improve the Kreutzer et al.’s scale in terms of language’s contamination and developmental sensibility have reached their goal. Regarding its psychometric properties, these results suggest that this interview can be considered as a useful and reliable tool for developmental research. Furthermore, they confirm the importance of metamemory knowledge in memory performance. Future studies will have to be carried out to show the utility of this scale in a clinical population. [less ▲]

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See detailSemantic Annotation of GPS Traces: Activity Type Inference
Reumers, Sofie; Liu, Feng; Janssens, Davy et al

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

Due to the rapid development of technology, larger data sets concerning activity travel behavior become available. These data sets often lack semantic interpretation. This implies that annotation in terms ... [more ▼]

Due to the rapid development of technology, larger data sets concerning activity travel behavior become available. These data sets often lack semantic interpretation. This implies that annotation in terms of activity type and transportation mode is necessary. This paper aims to infer activity types from GPS traces by developing a decision tree-based model. The model only considers activity start times and activity durations. Based on the decision tree classification, a probability distribution and a point prediction model were constructed. The probability matrix describes the probability of each activity type for each class (i.e. combination of activity start time and activity duration). In each class, the point prediction model selects the activity type that has the highest probability. Two types of data were collected in 2006 and 2007 in Flanders, Belgium, i.e. activity travel data and GPS data. The optimal classification tree constructed comprises 18 leaves. Consequently, 18 if-then rules were derived. An accuracy of 74% was achieved when training the tree. The accuracy of the model for the validation set, i.e. 72.5%, shows that overfitting is minimal. When applying the model to the test set, the accuracy was almost 76%. The models indicate the importance of time information in the semantic enrichment process. This study contributes to future data collection in that it enables researchers to directly infer activity types from activity start time and duration information obtained from GPS data. Because no location information is needed, this research can be easily and readily implemented to millions of individual agents. [less ▲]

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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 detailMagnetic fields in O stars
Nazé, Yaël ULg

in proceedings of "Putting A-stars into context" (2013)

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such ... [more ▼]

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such magnetic fields on the stellar winds of O-stars, with emphasis on variability and X-ray emission. [less ▲]

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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 detailSeeing the corona with the solar probe plus mission: the wide-field imager for solar probe+ (WISPR)
Vourlidas, A.; Howard, R. A.; Plunkett, S. P. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (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 detailDes guerres contre l’anarchie : constructions idéologiques à la cour de France au temps des premières Guerres d’Italie (1494–1525)
Dumont, Jonathan ULg

in Mazauric, Simone (Ed.) Écrire la guerre, écrire la paix. 136e Congrès national des Sociétés historiques et scientifiques, Perpignan 2011 (2013)

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See detailExercise modifies the innate immune response in equine bronchial epithelial cells
Frellstedt, Linda ULg; Gosset, Philippe; Pirottin, Dimitri ULg et al

in Proceedings of the 3rd Scientific Meeting of the Faculty of Veterinary Medicine (University of Liege - Belgium) (2013)

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See detailCharacterisation of cyclicity and relative sea-level fluctuations using magnetic susceptibility, Late Devonian (Frasnian) Hull platform, Canning Basin, Australia.
Da Silva, Anne-Christine ULg; George; Chow 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 detailL’ornement au service de la distribution dans les traités d’architecture français
Gilles, Isabelle ULg

in Heering, Caroline; Dekoninck, Ralph (Eds.) Question d’ornement. XVe-XVIIIe siècles : actes du colloque, Namur, 4-5 décembre 2009 (2013)

L’acception du terme ornement diffère d’un traité d’architecture à l’autre, et recouvre, parfois au sein d’un même ouvrage, deux concepts qu'aujourd’hui nous tendons à opposer : le structurel et ... [more ▼]

L’acception du terme ornement diffère d’un traité d’architecture à l’autre, et recouvre, parfois au sein d’un même ouvrage, deux concepts qu'aujourd’hui nous tendons à opposer : le structurel et l’accessoire. Or, si ces deux notions sont replacées, à leur juste mesure, dans la théorie de l’architecture des Temps Modernes, il apparaît clairement que l’ornement, – qu’il soit défini comme un élément de support dans le système des ordres ou comme la décoration générale d’un édifice –, occupe un rôle essentiel dans la conception totale d’un espace bâti, dans laquelle « toutes les parties d’Architecture, de Sculpture, & de Peinture ne doivent faire ensemble qu’un seul & même tout » (Boffrand, 1745). A ce titre, l’ornement assure donc pleinement la fonction sociale, économique, politique… dévolue communément à l’architecture. Dans cette communication, nous proposons d’aborder l’ornement en sa qualité d’élément de composition de l’espace bâti. Plus précisément, à travers les discours des théoriciens français de l’architecture du XVIe au XVIIIe siècle, nous étudierons la façon dont l’ornement intervient dans la question de la distribution des édifices ; cet art français par excellence d’organiser et de définir les espaces de vie. [less ▲]

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See detailLe corps dans la médecine des moines au Moyen Age : autour de quelques Régimes de santé monastiques
Xhayet, Geneviève ULg

in Hüe, Denis; De Gramont, Jérôme; Baillaud, Bernard (Eds.) Corps et encyclopédies : Actes du colloque de Cerisy, 10-14 septembre 2008 (2013)

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See detailLe bol de Wellin et son "parent" de Valsgärde?
Van Wersch, Line ULg; Mathis, François ULg

in Lorren, Claude (Ed.) La Gaule, le monde insulaire et l'Europe du Nord au haut Moyen Age (2013)

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See detail"Europe-Amérique" / "Europe-Magazine": un hebdomadaire belge, organe de l'extrême-droite française, 1945-1960?
Lanneau, Catherine ULg

in Dard, Olivier (Ed.) Supports et vecteurs des droites radicales au XXe siècle (Europe-Amériques) (2013)

Issued under various titles between 1944 and the early 1980’s, the Belgian weekly Europe Amérique / Magazine showed itself at first rather eclectic in the choice of its writers and the articles it ... [more ▼]

Issued under various titles between 1944 and the early 1980’s, the Belgian weekly Europe Amérique / Magazine showed itself at first rather eclectic in the choice of its writers and the articles it published. It had soon more and more pronounced leanings towards the far right and specialized itself in a vociferous form of anticommunism, the rehabilitation of Vichy regime and strong criticism of the Republic as the brain child of a biased vision of the Resistance. It opened its columns to avowed rightist French journalists ear-marked for theit conduct during WW2 and / or having their names on the black list of the Comité National des Ecrivains. After describing the inner story of the weekly, the causes and consequences of its two prohibitions in France (1946-1948, 1949-1953), this article deals with its strongly Vichy tainted staff of French writers (Alfred Fabre-Luce, Louis Guitard, Louis Rougier, Pierre Dominique, Albert Paraz, Lucien Rebatet...) and its closeness with the well-known Paroles Françaises, Ecrits de Paris and Rivarol. [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 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 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 detailTransient Fokker-Planck equation with SPH method : Application in seismic design
Canor, Thomas ULg; Denoël, Vincent ULg

in Papadrakakis, M; Papadopoulos, V; Plevris, V (Eds.) Proceedings COMPDYN2013 (2013)

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See detailLa société personnalisée entre les membres du couple
Aydogdu, Roman ULg

in Le couple sous toutes ses formes (2013)

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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 detailPossibilities and limitations of the Prevost model for the modelling of cohesionless soil cyclic behaviour
Cerfontaine, Benjamin ULg; Charlier, Robert ULg; Collin, Frédéric ULg

in Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering (2013)

The Prevost’s model is currently used to model cyclic behaviour of soils especially in earthquake engineering. The original model is able to capture the main features of cyclic behaviour: pore pressure ... [more ▼]

The Prevost’s model is currently used to model cyclic behaviour of soils especially in earthquake engineering. The original model is able to capture the main features of cyclic behaviour: pore pressure build up and plastic deformation accumulation. But accurate modelling of laboratory tests requires improvements. Enhanced models exist but require a lot of parameters that make them cumbersome for practical purpose. A suction caisson, part of a tripod offshore foundation for wind turbines is modelled. Possibilities of the Prevost’s model are highlighted compared with a classical Drucker-prager model. [less ▲]

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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 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 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 detailAvant-propos
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 direction de Daniel Droixhe, avec la collaboration de Muriel Collart (2013)

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See detailPregnancy-Associated Glycoproteins (PAGs) in prolific (Boujaâd x D’man) and non- prolific (Boujaâd) Moroccan sheep by means of four radio-immunoassays
El Amiri, Bouchra; Melo de Sousa, Noelita ULg; El Abbadi, N et al

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

The aim of the present study was: i) to investigate the use of PAGs for pregnancy follow up in Boujaâd non prolific (n=8) vs. Boujaâd x D’man a prolific sheep (n=20), ii) to study whether the boPAG tracer ... [more ▼]

The aim of the present study was: i) to investigate the use of PAGs for pregnancy follow up in Boujaâd non prolific (n=8) vs. Boujaâd x D’man a prolific sheep (n=20), ii) to study whether the boPAG tracer (daily available at the laboratory of physiology of reproduction, Liège, could be used in RIA without affecting the results, iii) to prospect the possibility of transferring the technique to a Moroccan laboratory. The blood samples were weekly collected from the first week of gestation till the 4 week after lambing. The RIA1, RIA2, RIA3 and RIA4 were all based on ovPAG standard, while the tracer and antiserum changed according to the system. The RIA1, RIA3 and RIA4 were performed in Belgium while the RIA2 was carried out in Morocco. The results showed that the highest correlation was obtained between the RIA3 and RIA4 (R2 = 0.83) while the lowest was recorded between the RIA2 and RIA4 (R2 = 0.69). The lowest concentrations derived from the RIA2. The highest concentrations were recorded before lambing (279.29; 88.21; 268.75; 152.67 ng/ml respectively for RIAs 1, 2, 3 and 4). To conclude, the profiles of ovPAG showed that it is possible to flow-up with success using the four systems. In addition, the RIA1 using boPAG as tracer could be a good alternative to the homologous one and finally, it is possible to set up routinely the RIA technique for PAG detection in Moroccan laboratories. [less ▲]

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See detailLa vie terminologique de l’énonciation
[Lttr 13]; Badir, Sémir ULg; Polis, Stéphane ULg et al

in Dufaye, Lionel; Gournay, Lucie (Eds.) Benveniste après un demi-siècle, regards sur l'énonciation aujourd'hui (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 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 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 detailLe congrès wallon de 1912: impact, significations et retombées
Lanneau, Catherine ULg

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

Pris en tenaille entre les élections du 2 juin et la publication de la Lettre au Roi, le congrès wallon de Liège du 7 juillet 1912 reste peu connu. En termes de souvenir collectif et d’inévitable ... [more ▼]

Pris en tenaille entre les élections du 2 juin et la publication de la Lettre au Roi, le congrès wallon de Liège du 7 juillet 1912 reste peu connu. En termes de souvenir collectif et d’inévitable hiérarchisation des événements historiques, ce sont bien deux autres congrès wallons, tenus à Liège également, qui surnagent : le congrès « identitaire » de 1905 et le fameux congrès national d’octobre 1945. Pourtant, le congrès de 1912 a eu au moins deux implications fondamentales : entretenir, au cœur de l’été le débat sur la séparation administrative, qui rebondira après la lettre de Destrée, et acter la désignation d’un comité d’action wallonne dont les premiers noms sont proposés en séance. C’est l’origine de l’Assemblée wallonne. Notre contribution proposera d’abord un bref résumé des débats ayant animé le congrès, en montrant les nuances entre le compte rendu officiel et celui des observateurs présents. Elle s’emploiera ensuite à analyser la réception du congrès dans l’opinion en insistant sur l’idée de séparation administrative. Qui se dit séparatiste ? Que recouvre cette expression, entre provincialisme et régionalisme ? Quels sont les arguments des partisans et des adversaires de la séparation ? Comment le contexte national et international de 1912 rejaillit-il sur ce débat ? [less ▲]

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See detailLexicografía e informática: sí, pero... / Lexicographie et informatique: oui, mais...
Baiwir, Esther ULg

in Ruiz Miyares, Leonel; Álvarez Silva, María Rosa; Muñoz Alvarado, Alex (Eds.) Actualizaciones en Comunicación Social - Vol. 1 (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 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 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 detailNew capabilities of the INCL4.6 model implemented into high-energy transport codes
Leray, S.; Boudard, A.; Braunn, B. et al

in Proceedings of Shielding Aspects of Accelerators, Targets and Irradiation Facilities 2011 (2013)

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See detailRécit et interaction : la piste structuraliste
Hurel, Pierre-Yves ULg

in Klein, Annabelle; Collard, Anne-Sophie (Eds.) COMMUNICATION : Regards croisés sur la relation (2013)

Le rapport entre récit et interactivité est régulièrement présenté comme paradoxal : comment une oeuvre peut-elle intégrer la liberté d’un participant extérieur à une histoire prédéterminée ? La recherche ... [more ▼]

Le rapport entre récit et interactivité est régulièrement présenté comme paradoxal : comment une oeuvre peut-elle intégrer la liberté d’un participant extérieur à une histoire prédéterminée ? La recherche y répond en grande majorité par la théorisation d’une narration émergente, qui abandonne le sens fort du récit. Nous y répondons par une nouvelle approche, nourrie par les thèses structurales – dont nous démontrons l’actualité et la pertinence dans le champ de recherche qui nous occupe. Ceci nous permettra de (re)définir l’objet et de comprendre sa relation au public. Certains webdocumentaires, jeux vidéo, jeux de rôle, hypertextes ou films interactifs font partie d’un même type de narration : le récit interactif. [less ▲]

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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 detailQuelques rappels et réflexions sur les rapports entre l'oral et l'écrit en langue et en didactique des langues
Defays, Jean-Marc ULg

in Defays, Jean-Marc; Meunier, Deborah (Eds.) L'oral et l'écrit en didactique des langues romanes (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 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 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 detailẢnh hưởng của kiểu gen halothane đến năng suất sinh sản của đàn lợn hạt nhân Piétrain kháng stress trong điều kiện chuồng kín và chuồng hở
Do Duc, Luc ULg; Ha Xuan, Bo; Vu Dinh, Ton et al

in Báo cáo khoa học Hội nghị Khoa học Công nghệ sinh học toàn quốc 2013 (2013)

The study was carried out on purebred nucleus herd of stress negative Piétrain pigs raised at Dong Hiep farm, Hai Phong province (HP) consisting of 18 males (13 CC and 5 CT) and 45 sows (31 CC and 14 CT ... [more ▼]

The study was carried out on purebred nucleus herd of stress negative Piétrain pigs raised at Dong Hiep farm, Hai Phong province (HP) consisting of 18 males (13 CC and 5 CT) and 45 sows (31 CC and 14 CT) and at Animal farm of Hanoi University of Agriculture (HN), including 9 males (3 CC and 6 CT) and 21 sows (11 CC and 10 CT) from May 2010 in April 2013 to evaluate the effect of halothane genotype of boars (CC and CT) and halothane genotype of sows (CC and CT) on reproductive performance. The results showed that reproductive performance was not significantly different between boars CC and CT (P>0 .05). Body weight of piglets born from sows CT (1.54 kg) was higher than those from CC (1.42 kg) at birth, however at weaning this trend was opposite (6.46 kg vs. 6.00 kg). Reproduction performances of CC and CT boars were similar under opening and closing farm conditions. However, using of CC sows can improve the body weight of piglets at the weaning; in particularly, CC sows in the closing farm condition. [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 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 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 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 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 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 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 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 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 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 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 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 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 detailInfluence of the frequency for the numerical modeling of the parasitic capacitances of wound magnetic components
De Greve, Zacharie; Lehti, Leena; Deblecker, Olivier et al

in 9th International Symposium on Electric and Magnetic Fields (EMF2013) (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 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 detailA new super-element for estimating the collision resistance of an inclined ship side
Buldgen, Loïc ULg; Le Sourne, Hervé; Rigo, Philippe ULg

in Advancements in Marine Structures : Proceedings of MARSTRUCT 2013, the 4th International Conference on Marine Structures, Espoo, Finland, 25th – 27th March 2013 (2013)

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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 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 detailCharacterization of gas transport in low-permeability media: two-phase flow analysis of an in-situ experiment
Gerard, Pierre; Radu, Jean-Pol ULg; de la Vaissière, Rémi et al

in POROMECHANICS V: Proceedings of the Fifth Biot Conference on Poromechanics (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 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 detailCONTROLLED AND AUTOMATIC MEMORY RETRIEVAL IN ALZHEIMER’S DISEASE
Bastin, Christine ULg; Genon, Sarah ULg; Willems, Sylvie ULg et al

in Proceedings of the 8th Panhellenic Interdisciplinary Conference of Alzheimer's Disease and Related Disorders (2013)

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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 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 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 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 detailQuelques considérations sur la préservation de l'authenticité des quartiers résidentiels modernes du nord de Bucarest
Dawans, Stéphane ULg; Houbart, Claudine ULg

in Crisan, Rodica (Ed.) Conservation / Regeneration. The modernist neighborhood (2013)

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See detailEmissions of ammonia, nitrous oxide and methane from pig houses: Influencing factors and mitigation techniques
Philippe, François-Xavier ULg; Nicks, Baudouin ULg

in Reconciling livestock management to the environment - Applying Best Available Technique (BAT): From the lab to the farm (2013)

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See detailTransition et écologisation de l’agriculture en Région Wallonne : trajectoires en Agriculture de Conservation
Stassart, Pierre M ULg; Vankeerberghen, Audrey ULg; Dannevoye, Bastien ULg et al

in van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) Actes 1er Congrès Interdisciplinaire de Développement Durable: Quelle transition pour nos sociétés. Thème 2: Alimentation , Agriculture, Elevage. 101-122 (2013)

Cet article s’intéresse aux trajectoires de transition d’agriculteurs engagés dans le mouvement d'« Agriculture de Conservation des sols » en Région Wallonne (Belgique). L'agriculture de conservation vise ... [more ▼]

Cet article s’intéresse aux trajectoires de transition d’agriculteurs engagés dans le mouvement d'« Agriculture de Conservation des sols » en Région Wallonne (Belgique). L'agriculture de conservation vise à restaurer ou à maintenir la fertilité des sols ainsi qu'à enrayer l'érosion de ces derniers par la mise en œuvre de techniques telles que la réduction du travail du sol (techniques de non-labour), la couverture permanente des sols et les rotations de cultures appropriées. Ce modèle agricole se développe aujourd'hui dans de nombreux pays et gagne peu à peu la reconnaissance d'institutions publiques. L’interprétation du processus de transition vers l’agriculture de conservation reste néanmoins ambiguë, car cette dernière s’inscrit dans des perspectives diverses et parfois contradictoires : initiative technique, économique, agronomique ou encore écologique. Le cadre analytique choisi est celui de la théorie multi-niveaux de la transition, considérant l'agriculture de conservation comme une niche d'innovation « par retrait », se construisant par décrochages successifs du labour en tant qu'institution du régime de l'agriculture conventionnelle. À travers les trajectoires de trois agriculteurs engagés dans des techniques de non-labour, il s'agira de saisir les modalités d'articulation et de désarticulation entre l'agriculture de conservation, d'une part, et le labour et l'agriculture conventionnelle, d'autre part. Cette analyse permettra de comprendre dans quelles perspectives les agriculteurs inscrivent leur pratique de l'agriculture de conservation ainsi que la position qu'ils lui donnent par rapport à l'agriculture conventionnelle. [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 detailL'évolution jurisprudentielle sur le statut du notaire
Donnay, Luc ULg

in Leleu, Yves-Henri (Ed.) Chroniques notariales (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 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 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 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 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 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 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 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 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 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 detailThe clinical and genetic characteristics of patients with gigantism
Rostomyan, Liliya ULg; Daly, Adrian ULg; Tichomirowa, 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 detailCrystal chemistry of a near end-member triplite, Mn2+2(PO4)F, from Codera valley (Sondrio province, Central Alps, Italy)
Vignola, P; Gatta, D; Hatert, Frédéric ULg et al

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

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See detailEn quoi un espace en ligne peut-il aider les étudiants de premier bachelier à résoudre des problèmes de physique?
Jacquet, Maud ULg; Georges, François ULg; Gourdange, Brigitte ULg et al

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

L’article présente un dispositif mis en place à l’Université de Liège (ULg, Belgique) pour faire face aux échecs massifs des étudiants de première année (branches scientifiques) dans le cours de physique ... [more ▼]

L’article présente un dispositif mis en place à l’Université de Liège (ULg, Belgique) pour faire face aux échecs massifs des étudiants de première année (branches scientifiques) dans le cours de physique. En soutien aux activités conventionnelles, un site Web propose à ces étudiants de résoudre en ligne des problèmes de physique en décomposant leur processus de résolution et en prenant connaissance de feed-back détaillés, de façon à améliorer tant leur compréhension de la mécanique (matière abordée en début de première année) que la résolution de problèmes en tant que telle. La description du dispositif sera suivie de l’analyse des données d’usage par plus de neuf cents étudiants ainsi que des données subjectives d’avis de ces étudiants quant à l’intérêt du dispositif de 2009. Sur base de ces constats, nous résumons les pistes d’amélioration et présentons, de façon très illustrée, les régulations apportées en 2011 et 2012. L’accent est résolument placé sur le volet « feed-back », très apprécié des étudiants : un diagnostic individuel de la phase de résolution qui leur pose le plus problème, de nombreuses vidéos de résolution guidée et des animations qui permettent à chacun de revenir sur les concepts les plus difficiles à comprendre. [less ▲]

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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 detailUnsupervised Learning Of Predictive Parts For Cross-object Grasp Transfer
Detry, Renaud ULg; Piater, Justus

in IEEE/RSJ International Conference on Intelligent Robots and Systems (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 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 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 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 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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