References of "Scientific congresses and symposiums"
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See detailInfluence of selenium enriched fertilizers on the selenium content in grass and the selenium status in a suckling herd offered selenium enriched grass, silage and barley
Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg; Coenen, M. et al

in Book of Abstracts of the 55th Annual Meeting of the European Association for Animal Production (2004)

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See detailEnseigner les langues dans le fondamental : un métier difficile, mais plutôt apprécié
Straeten, M.; Blondin, Christiane ULg

in (Re)trouver le plaisir d'enseigner et d'apprendre : construire savoirs et compétences : actes du 3e congrès des chercheurs en éducation (2004)

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See detailStatistically reliable sampling becomes realistic and economically workable with molecular tests
Lepoivre, Philippe ULg; Kummert, J.; Dutrecq, O. et al

Conference (2004)

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See detailConception et évaluation d’un cours en ligne destiné à améliorer les compétences de futurs enseignants en Education physique à l’analyse de tâche. Des savoirs techniques aux compétences pédagogiques.
Delfosse, Catherine ULg; Lenzen, Benoît; Cloes, Marc ULg

in Herphelin, M. (Ed.) Actes du 3ème Congrès des Chercheurs en Education. (Re)trouver le plaisir d'enseigner et d'apprendre. Construire savoirs et compétences (2004)

Ce cours utilise la plate-forme d’enseignement à distance WebCT et est accessible aux étudiants via Internet. Il s’adresse en priorité aux étudiants de 2ème candidature en éducation physique de ... [more ▼]

Ce cours utilise la plate-forme d’enseignement à distance WebCT et est accessible aux étudiants via Internet. Il s’adresse en priorité aux étudiants de 2ème candidature en éducation physique de l’Université de Liège mais pourrait être utilement proposé aux enseignants en formation continuée voire aux entraîneurs. Ce cours a été conçu dans le cadre du DES Formasup en Pédagogie Universitaire de l’Université de Liège, orientation EAD (enseignement à distance) par Benoît Lenzen, Assistant au Département des APS, en collaboration avec le LabSET (Laboratoire de Soutien à l’Enseignement Télématique). Ce travail constitue la première étape d’une réflexion plus large entamée sur la liaison entre apprentissage théorique et travail de terrain. [less ▲]

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See detailActivity-stability relationships in extremophilic enzymes
D'Amico, Salvino; Collins, Tony; Georlette, Daphné et al

Conference (2004)

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See detailUse of heterologous and homologous radioimmunoassay (RIA) for ovine pregnancy-associated glycoprotein (ovPAG) determination to detect pregnancy in sheep
Vandaele, L.; Verberckmoes, S.; De Cat, S. et al

in Reproduction (Cambridge, England). Abstract Series (2004), 31

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See detailSelf-assembling of poly(-caprolactone)-b-poly(ethylene oxide) diblock copolymers in aqueous solution and at the silica–water interface
Leyh, Bernard ULg; Vangeyte, Patrick; Heinrich, M. et al

in Physica B: Condensed Matter (2004), 350(1-3, suppl. 1), 901-904

Small-angle neutron scattering is used to investigate the self-assembling behaviour of poly( ε-caprolactone)-b-poly(ethylene oxide) diblock copolymers with various block lengths (i) in aqueous solution ... [more ▼]

Small-angle neutron scattering is used to investigate the self-assembling behaviour of poly( ε-caprolactone)-b-poly(ethylene oxide) diblock copolymers with various block lengths (i) in aqueous solution, (ii) in aqueous solution with the addition of sodium dodecyl sulphate (SDS) and (iii) at the silica-water interface. Micelles are observed under our experimental conditions due to the very small critical micellar concentration of these copolymers (0.01 g/l). The poly( ε-caprolactone) core is surrounded by a poly(ethylene oxide) corona. The micellar form factors have been measured at low copolymer concentrations (0.2 wt%) under selected contrast matching conditions. The data have been fitted to various analytical models to extract the micellar core and corona sizes. SDS is shown to induce partial micelle disruption together with an increase of the poly(ethylene oxide) corona extension from 25% (without SDS) to 70% (with SDS) of a completely extended PEOi u chain. Our data at the silica-water interface are compatible with the adsorption of micelles. [less ▲]

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See detailMECHANICAL STRAIN MODULATES MONOCYTE CHEMOTACTIC PROTEIN-1 AND IL-1BETA EXPRESSION BY CULTURED HUMAN AORTIC SMOOTH MUSCLE CELLS
Defawe, Olivier; Colige, Alain ULg; Deroanne, Christophe ULg et al

in Cardiovascular Pathology (2004), 13(3 suppl), 189

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See detailEffet de la fertilisation avec des engrais contenant du sélénium sur le statut sélénique de bovins Blanc-Bleu Belge : résultats préliminaires
Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg; Coenen, M. et al

in 11èmes Rencontres autour des Recherches sur les Ruminants (2004)

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See detailEffet de prétraitements agoniste et antagoniste de GnRH sur la production d’embryons chez la brebis et la chèvre
Baril, G.; Cognié, Y.; Belloc, J. P. et al

in Proceedings: 11e Rencontres autour des Recherches sur les Ruminants (3R) (2004)

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See detailCartografia Preliminar de los minerales evaporiticos del salar de Coipasa utilisando imagenes Aster
Caceres, Fernando; Gutierrez, Jorge; Pirard, Eric ULg

in Conferencia Nacional de Valorizacion de los Salares (2004)

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See detailLuminal contact improves human small bowel preservation
DE ROOVER, Arnaud ULg; de Leval, Laurence ULg; GILMAIRE, Julie ULg et al

in Acta Gastro-Enterologica Belgica (2004), 67

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See detailGlobal design of hydraulic structures optimised with physically based flow solvers on multiblock structured grids
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Proceedings of the 9th International Symposium on River Sedimentation (2004)

This paper presents the numerical studies lead by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions of the University of Liège (HACH) for the rehabilitation of the 21-meter high ... [more ▼]

This paper presents the numerical studies lead by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions of the University of Liège (HACH) for the rehabilitation of the 21-meter high Nisramont dam in Belgium. After determination of the up-to-date 1000-year return flood using the hydrological runoff model WOLFHYDRO on the global 74,000 ha watershed real topography coupled with statistical analyzes, and after validation on the existing situation and for extreme observed events, the 2D finite volume multiblock flow solver WOLF2D has been applied to the design of the new stilling basin and to the bottom outlet rehabilitation impact study. The multiblock solver possibilities allow mesh refinement close to interesting areas, such as dam spillway and stilling pool, without leading to prohibitive CPU times, while suitable shallow water equations formulation allows the computation of the flows on the strongly vertically curved bottom of the spillway. In the described simulation, 270,000 structured finite volumes, from .25 to 1 meters long, are used to simulate as a whole the flows in the upstream reservoir, dam, spillway, stilling basin and downstream river, this on a real topography. [less ▲]

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See detailOptimal location of inter-modal terminals
Jourquin, Bart; Limbourg, Sabine ULg

Conference (2004)

The known methods to solve the problem of the optimal location of inter-modal terminals are “node” based, in the sense that they use the locations of the demands and the supplies as main input. The basic ... [more ▼]

The known methods to solve the problem of the optimal location of inter-modal terminals are “node” based, in the sense that they use the locations of the demands and the supplies as main input. The basic idea of this new research is to use the flows between these origins and destinations as additional input. [less ▲]

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See detailIsolation and characterisation of seven alien monosomic addition lines of Gossypium australe F. Muell. on G. hirsutum L.
Ahoton, L.; Lacape, J. M.; D'Hont, A. et al

in World Cotton Research Conference - 3. Cotton production for the new Millenium (2004)

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See detailL’architecture comme représentation de la justice pénale
Tieleman, David ULg

in GAMBARDELLA, Carmine; MARTUSCIELLO, Sabina (Eds.) Le Vie deai Mercanti : rappresentazione come governo della modificazione (2004)

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See detailHCV genotype 5: an easy to treat population
REENAERS, Catherine ULg; DELWAIDE, Jean ULg; GERARD, Christiane ULg et al

in Acta Gastro-Enterologica Belgica (2004), 67

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See detailEvaluation of the function of ADAMTS-2, a metalloproteinase containing a disintegrin domain and thrombospondin type I repeats, during angiogenesis in vitro and in vivo
Kesteloot, Frédéric ULg; Lapière, Charles M; Colige, Alain ULg et al

in Acta Clinica Belgica (2004), 59(2), 120

Angiogenesis is required for development, growth, tissue remodeling, and wound healing. Pathologies such as diabetic retinopathy, rheumatoid arthritis and cancer would benefit from therapies controlling ... [more ▼]

Angiogenesis is required for development, growth, tissue remodeling, and wound healing. Pathologies such as diabetic retinopathy, rheumatoid arthritis and cancer would benefit from therapies controlling and reducing angiogenesis. Enzymes of the ADAMTS family are closely related to MMPs and ADAMs. They contain however some specific features, such as a variable number of domains known as “ThromboSpondin type I repeat” (TSPI). ADAMTS-1 and -8 are 20-fold more anti-angiogenic than angiostatin and endostatin, two potent inhibitors of angiogenesis. The primary function of ADAMTS-2 is the maturation of collagen type I and II molecules by excising the amino-propeptide. In addition, ADAMTS-2 could also modulate angiogenesis, as it contains the same sequences than those responsible for the anti-angiogenic activity of ADAMTS-1 and -8. This hypothesis was investigated in vitro in different experimental models such as cell proliferation and formation of capillary structures by human endothelial cells. An ex vivo angiogenesis model was also used. It consists in mice or rat aorta pieces embedded in a collagen gel in order to allow the growth of capillaries from the vascular endothelium. As compared to control mice (TS2+/+), angiogenesis was slightly increased, in absence of ADAMTS-2, from aortas of ADAMTS-2 KO mice (TS2-/-). Using rat aortas, addition of recombinant ADAMTS-2 reduced the formation of capillary structure, also confirming the anti-angiogenic activity of ADAMTS-2. Finally, an in vivo model of angiogenesis was also used. Biocompatible sponges (Ivalon) were implanted under the skin of TS2+/+ or TS2-/- mice in order to evaluate the formation of capillaries in the granulation tissue invading the sponge. In absence of ADAMTS-2, angiogenesis and granulation tissue formation were both reduced. Additional investigations are being performed in order to identify the underlying mechanism(s) inducing these modifications. [less ▲]

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See detailNutrient fluxes in three pure forest stands (Fagus sylvatica, Quercus petraea and Picea abies) on acid soils in the Haute Ardenne
Degrave, Frédéric; Carnol, Monique ULg

in Biodiversity: state, stakes and future; 7,8 & 9 April 2004, Louvain-la-Neuve, Belgium, Symposium, Programme, Abstracts, Participants (2004)

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See detailRecombination and somatic elimination of a Gossypium australe chromosome in G. hirsutum
Sarr, D.; Baudoin, Jean-Pierre ULg; Mergeai, Guy ULg

in Proceedings of the Beltwide cotton improvement conference (2004)

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See detailStaff development and e-tutors training
Banks, Sheena; Denis, Brigitte ULg; Fors, Uno et al

in Banks, Sheena; Goodyear, Peter; Hodgson, Vivien (Eds.) et al Networked learning 2004 : a research based conference on networked learning in higher education and lifelong learning : proceedings of the fourth international conference, Lancaster (2004)

This paper considers the rationale for the training and staff development of e-tutors. We then examine how this is implemented in practice through the presentation of case studies from three European ... [more ▼]

This paper considers the rationale for the training and staff development of e-tutors. We then examine how this is implemented in practice through the presentation of case studies from three European universities. Finally we analyse the differences and similarities of these case studies to exemplify some principles for training models and guidelines for training of e-tutors. We conclude that although it is possible to identify these principles of good practice, there is great flexibility and diversity of methods and approaches in the training and staff development of e-tutors. [less ▲]

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See detailSubcellular localization of the Bovine Leukemia Virus (BLV) R3 and G4 accessory proteins in BLV producing cells.
Dimitrov, P.; Russev, Russi; Shikova, E. et al

Poster (2004)

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See detailImpacts of elevated CO2 on net nitrification and on the community structure of ammonia oxidising bacteria
Malchair, Sandrine ULg; Carnol, Monique ULg

in Biodiversity: state, stakes and future; 7,8 & 9 April 2004, Louvain-la-Neuve, Belgium, Symposium, Programme, Abstracts, Participants (2004)

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See detailProper Orthogonal modes for the characterisation of nonlinear dynamic systems
Kerschen, Gaëtan ULg; Lenaerts, Vincent; Golinval, Jean-Claude ULg et al

in Euromech Colloquim on Nonlinear Modes of Vibrating Systems, Frejus, 2004 (2004)

Modal analysis is extensively used for the analysis and design of structures. However, a major concern for structural dynamicists is that its validity is limited to systems showing a linear behaviour. New ... [more ▼]

Modal analysis is extensively used for the analysis and design of structures. However, a major concern for structural dynamicists is that its validity is limited to systems showing a linear behaviour. New developments have thus been proposed in order to tackle nonlinear systems among which the theory based on the nonlinear normal modes is indubitably the most appealing. In this study, a different approach is adopted and the modes extracted from the proper orthogonal decomposition are considered for the characterization of nonlinear systems. [less ▲]

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See detailNumerical simulation of tissue differentiation around loaded implants in a bone chamber
Geris, Liesbet ULg; Vander Sloten, Jos

in In Proceedings of the Mini-Symposium Biomécanique de l'appareil locomoteur (2004)

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See detailSensor Validation for On-line Vibration Monitoring
Kerschen, Gaëtan ULg; De Boe, Pascal; Golinval, Jean-Claude ULg et al

in 2nd European Workshop on Structural Health Monitoring, Munich, 2004 (2004)

For a reliable on-line vibration monitoring of structures, it is necessary to have accurate sensor information. However, sensors may sometimes be faulty or may even become unavailable due to failure or ... [more ▼]

For a reliable on-line vibration monitoring of structures, it is necessary to have accurate sensor information. However, sensors may sometimes be faulty or may even become unavailable due to failure or maintenance activities. The problem of sensor validation is therefore a critical part or structural identification. The objective of the present study is to present a procedure based on principal component analysis, which is able to perform detection, isolation and reconstruction of a faulty sensor. Its e ciency is assessed using an experimental application. [less ▲]

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See detailEvaluation of immunogenicity and protective efficacy of a Microsporum canis metalloprotease subunit vaccine in guinea pigs
Vermout, S.; Brouta, F.; Descamps, F. et al

Conference (2004)

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See detailDes socles de compétences à la mise en place d'une démarche expérimentale à l'école primaire : intervention en formation initiale des enseignants
Hindryckx, Marie-Noëlle ULg; Graftiau, Marie-Christine; Stegen, Pierre

in Actes du Troisième Congrès des chercheurs e, Education (Re)trouver le plaisir d'enseigner et d'apprendre ; construire savoirs et compétences (2004)

recherche action menée en collaboration entre deux services universitaires et la Haute Ecole Charlemagne de Liège autour de la formation initiale des enseignants du primaire en sciences. Interventions ... [more ▼]

recherche action menée en collaboration entre deux services universitaires et la Haute Ecole Charlemagne de Liège autour de la formation initiale des enseignants du primaire en sciences. Interventions dans le cadre des ateliers de formation professionnelle [less ▲]

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See detailImportance de la consommation alimentaire pour le développement durable de la production agricole : dispositifs mis en place en Région wallonne
Duquesne, Brigitte ULg; Lebailly, Philippe ULg

in Gervais, Jean-Philippe; Larue, Bruno; Rastoin, Jean-Louis (Eds.) et al Développement durable et globalisation dans l'agroalimentaire (2004)

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See detailConcentration of Polybrominated Diphenyl Ethers (PBDEs) in house hold dust from various countries - inhalation a potential route of human exposure
Sjödin; Päpke, Olaf; McGaheeIII, Ernest et al

in Organohalogen Compounds (2004), 66

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See detailWhither dynamic congestion management ?
Wehenkel, Louis ULg

(2004)

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See detailPathologie, leeftijd en geslacht van de olievogels
Jauniaux, Thierry ULg; Masure, S.

(2004)

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See detailRecovering missing data in satellite images. An application to adriatic sst and comparison with in situ data
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Rixen, M. et al

Conference (2004)

Satellite images are very useful for many applications in oceanography and other environmental sciences. They offer a great coverage both in time and space, not attained by in situ measurements. Clouds ... [more ▼]

Satellite images are very useful for many applications in oceanography and other environmental sciences. They offer a great coverage both in time and space, not attained by in situ measurements. Clouds are responsible for missing data on images provided by receptors working in the visible and IR range receptors. In some seasons the cloud coverage can reach an important percentage. Many data analysis techniques do not need a total coverage, although it is always desirable. Some applications, such as Empirical Orthogonal Function (EOF) analysis, or wavelet decomposition need a complete set of data, and a technique for recovering these missing data is indispensable. In this work we present DINEOF (Data INterpolating Empirical Orthogonal Functions), a method for the reconstruction of satellite data, based on an EOF decomposition. DINEOF reconstructs the missing data from an optimal set of EOFs. The optimal number of EOFs is determined by cross-validation. This method has shown to obtain robust results. DINEOF has been applied to a series of 105 AVHRR SST images of the Adriatic Sea, in a period ranging from May to October 1995. The mean cloud coverage of this data set is 52%. The error obtained by the cross-validation is of 0.6°C, and a total of 10 EOFs were necessary to reconstruct the data. A comparison with in situ data obtained form the MEDAR/Medatlas database is made. A total of 452 stations are examined. The RMS error between MEDAR/Medatlas and the reconstructed data is of 0.95°C. The error between MEDAR/Medatlas data and the points that are not missing in the Adriatic data set is of 0.67°C, which can be considered as the inherent error between the in situ and remote sensed data sets. [less ▲]

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See detailL’agriculture wallonne : les défis de l’avenir
Burny, Philippe ULg

Conference (2004)

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See detailGCxGC-TOFMS of chlorinated dioxins and furans in environmental samples
Cochran, Jack; Focant, Jean-François ULg; Sjödin, Andreas et al

in Organohalogen Compounds (2004), 66

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See detailA Consistent Dissipative Time Integration Scheme for Structural Dynamics. Application to Rotordynamics.
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg

(2004)

Recently, robust implicit energy and momentum conserving algorithms have been developed in the non-linear range. In previous works, the authors extended these algorithms to hypoelasticity-based ... [more ▼]

Recently, robust implicit energy and momentum conserving algorithms have been developed in the non-linear range. In previous works, the authors extended these algorithms to hypoelasticity-based constitutive models. In this paper we introduce numerical dissipation, opening the way to more complex simulations such as blade-loss in a turbofan. [less ▲]

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See detail« Questions choisies de droit des biens : servitudes et mitoyenneté »,
Lecocq, Pascale ULg; Boufflette, Sophie ULg; Vandeweerd, Nathalie

in Chronique de droit à l'usage des juges de paix et de police 2004 (2004)

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See detailÉvolution du Gravettien au Moyen Danube
Otte, Marcel ULg; Noiret, Pierre ULg

in Svoboda, Jirí; Sedlácková, Lenka (Eds.) The Gravettian along the Danube (2004)

Radiometric dates, typology and sedimentology suggest an autochthonous origin for the Gravettian culture in the Middle Danube. Its complex development is marked by tool specialisation, a demographic ... [more ▼]

Radiometric dates, typology and sedimentology suggest an autochthonous origin for the Gravettian culture in the Middle Danube. Its complex development is marked by tool specialisation, a demographic increase and an apparent sedentism. Subsequently, this key region spread to the east or the west by autonomous migratory movements during each phase (Bayacian, Kostenkian). The form of religiosity that is finally associated with this culture constitutes the first artistic creation evidencing a matriarchal system. Through the artistic forms, this belief system is also modified through time and across space: it is characterised as well by recognisable artistic “styles”. The broad Gravettian entity, in its distribution and the finesse of its adaptation, was a product of continental Europe, for which it constitutes the origin of later cultures and populations. At the same time, its plastic expressions seem to result in an Aurignacian acculturation, and its anatomy a blend of Neandertals with incoming modern humans. Curiously, recent phases are limited to the eastern Danube Basin. The Pleniglacial B seems to have interrupted western contacts, where the Magdalenians would soon appear, until Moravia. From then on, Europe as a whole would no longer be unified. In consequence, new approaches to the study of the Danubian Gravettian should be oriented towards the eastern plains, Moldavia and The Crimea. [less ▲]

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See detailConcomitant coronary and carotid artery surgery: operative outcome and long-term results
Kolh, Philippe ULg; Tchana-Sato, Vincent ULg; Honoré, Charles ULg et al

in European Heart Journal (2004), 25(Suppl. S), 360-361

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See detailSelecting the Holstein breed for functional traits in France
Colleau, J. J.; Barbat, A.; Boichard, D. et al

Conference (2004)

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See detailFebrile convulsions: an update
Lagae, L.; Ceulemans, B.; Misson, Jean-Paul ULg

in Acta Neurologica Belgica (2004)

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See detailContribution of tobacco smoking to dioxin accumulation: opposite effects according to gender
Fierens, Sébastian; Eppe, Gauthier ULg; Focant, Jean-François ULg et al

in Organohalogen Compounds (2004), 66

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See detailChronic mastitis-affected cows display lower lipoxin levels than acute mastitis-affected cows
Boutet, Philippe ULg; Bureau, Fabrice ULg; Degand, Guy ULg et al

in Pflügers Archiv : European Journal of Physiology (2004), 447

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See detailQTL analysis of the expression of the low-gossypol seed and high gossypol plant trait in the progeny of the Gossypium hirsutum x G. raimondii x G. sturtanium trispecific hybrid
Benbouza, H.; Lacape, M.; Courtois, B. et al

in Proceedings of the Beltwide cotton improvement conference (2004)

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See detailUsing the Complete Nano Engineering Geological Spectrum to Assess the Performance of Clay Barriers
Schmitz, Robrecht; Schroeder, Christian ULg; Thorez, Jacques ULg et al

in Hack, Robert; Azzam, Rafig; Charlier, Robert (Eds.) Engineering Geology for Infrastructure Planning in Europe (2004)

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See detailNew analogues of the KATP channel opener cromakalim : synthesis and pharmacological evaluation on rat pancreatic B-cells and rat aorta rings
Sebille, S.; De Tullio, Pascal ULg; Antoine, M. H. et al

in Fundamental & Clinical Pharmacology (2004)

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See detailPreliminary work for the use of linkage disequilibrium in French MAS program
Druet, Tom ULg; Fritz, S.; Malafosse, A. et al

Conference (2004)

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See detailUse of mapped SSR markers to assist the selection of low-gossypol seeds and high-gossypol plant cultivars in upland cotton
Benbouza, H.; Lacape, M.; Jacquemin, J. M. et al

in Proceedings of the 2004 International cotton initiative workshop (2004)

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See detailDetermination of pregnancy-associated glycoproteins (bPAG) in cow’s milk
Metelo, R.; Silva, S.; Sulon, J. et al

in Proceedings: 23rd World Buiatrics Congress, Québec, Canada (2004)

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See detailEffects of temperature on the chemistry of the echinoderm skeleton
Ranner, Herwig; Ladrière, Ophélie ULg; Navez, Jacques et al

Poster (2004)

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See detailDevelopment of RT-PCR assays using fluorogenic-3 minor groove binder DNA probes for detection of fruit tree viruses.
Roussel, S.; Kummert, J.; Dutrecq, O. et al

in Acta Horticulturae (2004), 657(1),

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See detailCharacterization of preferential activity on platelet thromboxane A2 receptors of BM-613, a new thromboxane A2 antagonist
Hanson, Julien ULg; Rolin, S.; De Leval, X. et al

in Fundamental & Clinical Pharmacology (2004)

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See detailHow dangerous is the environment for the breast?
Charlier, Corinne ULg

Conference (2004)

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See detailCollective Retrieval hy Autonomous Rohots
Meyer, Patrick ULg

Conference (2004)

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, F.; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailMelting and crystallisation behaviour of multi-component Fe-C-Cr-X alloys : microstructural aspects
Tchuindjang, Jérôme Tchoufack ULg; Lecomte-Beckers, Jacqueline ULg

in Proceedings of the 13th European Microscopy Congress (2004)

Studied materials are of the Fe-C-Cr-X multi-component system where X represents a group of strong carbides formers as Mo, V, or Nb. These alloys are used for wear components. Differential Thermal ... [more ▼]

Studied materials are of the Fe-C-Cr-X multi-component system where X represents a group of strong carbides formers as Mo, V, or Nb. These alloys are used for wear components. Differential Thermal Analysis (DTA) was used to determine the melting and solidification behaviour of these materials. Raw material has a thermomecanical history that involved casting, heat treating and hot forming, which could be investigated by the melting sequence of the DTA trial. [less ▲]

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See detailReprésentations des réseaux de mots associés
Lejeune, Christophe ULg

in Purnelle, Gérald; Fairon, Cédrick; Dister, Anne (Eds.) Le poids des mots (2004)

Networks of associated words are used in qualitative data analysis software such as Candide, Réseau-Lu T-Lab on one side and Prospéro on the other side. The precise algorithm of both Candide and Prospéro ... [more ▼]

Networks of associated words are used in qualitative data analysis software such as Candide, Réseau-Lu T-Lab on one side and Prospéro on the other side. The precise algorithm of both Candide and Prospéro is described. Strength and limits of such a feature are compared with the gain it provides to social scientists. The paper concludes on a procedure helping to judge the adequacy and accuracy of categories of analysis constructed by the researcher. [less ▲]

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See detailSubchondral bone osteoblasts induce phenotypic changes in human osteoarthritic chondrocytes
Sanchez, Christelle ULg; Deberg, Michelle ULg; Piccardi, Nathalie et al

in Osteoarthritis and Cartilage (2004), 12(Suppl. B), 99-100

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See detailApproche unifiée des interactions entre l'hydrodynamique et le milieu naturel ou construit: exemples d'applications expérimentales et numériques
Pirotton, Michel ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Actes des 5èmes journées scientifiques et techniques du CETMEF (2004)

Même si le contexte contemporain fait évoluer les problèmes qui y sont liés, force est de constater que les défis majeurs attachés à l’eau subsistent ou se radicalisent. De l'écrêtement des crues au ... [more ▼]

Même si le contexte contemporain fait évoluer les problèmes qui y sont liés, force est de constater que les défis majeurs attachés à l’eau subsistent ou se radicalisent. De l'écrêtement des crues au soutien d'étiage, du recours toujours croissant à l'eau pour l’activité industrielle au sens large au maintien de ses propriétés écologiques pour la consommation, tout concourt à faire du problème de l’eau un défi du 21e siècle, bien rare à épargner et à gérer plus efficacement. Qu'elle s'intéresse à l’origine, à la consommation ou à l’utilisation de l’eau ou encore qu'elle se tourne vers les conséquences possibles des infléchissements que l'homme peut provoquer sur le cycle de l’eau, la gestion actuelle des ressources hydrauliques ne peut plus ignorer les nouvelles potentialités nées de l'accroissement rapide des possibilités numériques qui permettent, avec les acquis théoriques en mécanique des fluides, de développer des outils d'aide à la décision applicables à des situations grandeur nature. Parmi tous les domaines de l’hydraulique touchés par le numérique, l'intérêt du HACH à modéliser l’ensemble des écoulements à surface libre résulte simplement de leur prépondérance dans les phénomènes hydrodynamiques influents sur lesquels on s'efforce d'agir. A l'échelle du système hydrologique global, le souci de gérer, donc d’anticiper les phénomènes naturels et accidentels, conduit ainsi à couvrir avec des approches physiquement basées les différentes étapes que connaît la goutte d’eau lorsqu’elle frappe la surface terrestre, du ruissellement au gonflement des rus, rivières et zones de stockage, jusqu’aux grands fleuves et voies intérieures de navigation. Délaissant volontairement le formalisme des équations utilisées et des méthodes numériques de résolution, cet article s’attache à prouver la pertinence du recours au numérique par une illustration chronologique (au fil de l’eau) de quelques situations réelles gérées par la suite des programmes WOLF, complètement écrits au sein du HACH. [less ▲]

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See detailStructure of liquid Te-based alloys used in rewritable DVDs
Delheusy, M.; Raty, Jean-Yves ULg; Detemple, R. et al

in Physica B: Condensed Matter (2004), 350(1-3 SUPPL. 1), 1055-1057

We analyze the structure of Te-based chalcogenide compounds that are used as materials for rewritable DVDs by using a combination of neutron diffraction and ab initio computer simulation. We show that in ... [more ▼]

We analyze the structure of Te-based chalcogenide compounds that are used as materials for rewritable DVDs by using a combination of neutron diffraction and ab initio computer simulation. We show that in the liquid, the atoms have a low average coordination number, as the result of a Peierls distortion. The partial pair correlation functions are obtained from the computer simulation data. © 2004 Published by Elsevier B.V. [less ▲]

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See detailImprovement of metal dispersion in Pd/SiO2 cogelled xerogel catalysts
Lambert, Stéphanie ULg; Polard, Jean-François; Ferauche, Fabrice et al

Poster (2004)

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See detailEvolution végétale: points de vue récents sur deux périodes-clés de l'histoire des plantes.
Meyer-Berthaud, Brigitte; Gerrienne, Philippe ULg

Conference (2004)

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See detailDevelopment of in vitro techniques for the elimination of Cucumber Mosaic Virus from banana (Musa spp.).
Helliot, B.; Panis, B.; Hernandez, R. et al

in Banana improvement: cellular, molecular biology, and induced mutations.Proceedings of a meeting held in Leuven, Belgium, 24-28 September 2001 (2004)

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See detailPresentation of clinical cases
Mignon, Bernard ULg

Conference (2004)

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See detailPolyamine as innate immunity modulator
Peulen, Olivier ULg; Powroznik, Brigitte; Gharbi, Myriam ULg et al

in Pflügers Archiv : European Journal of Physiology (2004), 449

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See detailMetodologia documentaria e insegnamento a distanza (traduit du français par Massimo Borghese)
Pochet, Bernard ULg

in Lombello Soffiato, Donatella; Lo Brano, Ademario (Eds.) Inciampare nel problema. Il Processo di ricerca dell'informazione nella biblioteca scolastica multimediale (2004)

During this presentation, we will mainly describe the information literacy courses at the University of Gembloux in Belgium (FUSAGx) and its gradual transformation of from presential education to distance ... [more ▼]

During this presentation, we will mainly describe the information literacy courses at the University of Gembloux in Belgium (FUSAGx) and its gradual transformation of from presential education to distance learning. The process is far from over, but some lessons can already be drawn from this 3 years experience's. [less ▲]

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See detailThe age as a diagnostic of the dynamics of marine ecosystem models
Delhez, Eric ULg; Lacroix, Geneviève; Deleersnijder, Eric

in Ocean Dynamics (2004), 54(2), 221-231

The constituent-oriented age theory (CAT) worked out by Delhez et al. (1999) is a flexible tool that can be applied to diagnose complex models. It is shown here how this can be used to quantify the pace ... [more ▼]

The constituent-oriented age theory (CAT) worked out by Delhez et al. (1999) is a flexible tool that can be applied to diagnose complex models. It is shown here how this can be used to quantify the pace at which an ecosystem model works. At the cost of the introduction of one additional evolution equation for each compartment of the ecosystem model, the mean age of the biological material forming these compartments can be computed. The information obtained in this way complements the information provided by the concentration data; while the latter measures the standing stocks, the former provides an integrated assessment of the interaction rates and matter fluxes. The benefits of the method are demonstrated with a simple Lotka-Volterra system and a one-dimensional vertical model of the nitrogen cycle in the Ligurian Sea. The theory can be used to study the biological compartments individually or the ecosystem as a whole. In particular, the age is a valuable tool to quantify the overall cycling rate of nitrogen in the food web. [less ▲]

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See detailSiF'04, Structures in Fire
Franssen, Jean-Marc ULg; Benichou; Kodur et al

in Franssen, Jean-Marc (Ed.) Proceedings of the Third International Workshop (2004)

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See detailQuelle place l’enseignement a-t-il parmi les motivations et projets professionnels des étudiants en Education physique?
Cloes, Marc ULg; Renard, Jean-Pierre; Gérard, Philippe et al

in Herphelin, M. (Ed.) Actes du 3ème Congrès des Chercheurs en Education. (Re)trouver le plaisir d'enseigner et d'apprendre. Construire savoirs et compétences (2004)

Il est commun de considérer que les études en éducation physique conduisent exclusivement à une carrière dans l’enseignement. Toutefois, les recherches portant sur les aspirations professionnelles des ... [more ▼]

Il est commun de considérer que les études en éducation physique conduisent exclusivement à une carrière dans l’enseignement. Toutefois, les recherches portant sur les aspirations professionnelles des étudiants entrant dans ce type de formation sont relativement rares et il n’est pas possible actuellement de déterminer si tous les étudiants possèdent réellement cette vocation «pédagogique». En Communauté française de Belgique, la présence et le succès de 12 établissements de formation en éducation physique a incité le Ministère de l’Enseignement supérieur et de la Recherche scientifique à commander une étude portant sur les motivations des jeunes qui s’engagent dans cette orientation de formation. [less ▲]

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See detailMaintien et stratégies de renforcement de la motivation des étudiants dans l'enseignement à distance
Mignon, Jacques ULg; Closset, Jean-Louis ULg

in Actes du 21e congrès de l’Association internationale de pédagogie universitaire (AIPU) (2004)

L'exploitation des nouvelles technologies dans la mise sur pied d'un enseignement à distance s'accompagne nécessairement d'une réflexion pédagogique structurée. Cette réflexion fait souvent fi de la mise ... [more ▼]

L'exploitation des nouvelles technologies dans la mise sur pied d'un enseignement à distance s'accompagne nécessairement d'une réflexion pédagogique structurée. Cette réflexion fait souvent fi de la mise en oeuvre de véritables stratégies motivationnelles. Pourtant, lorsqu'on demande à un enseignant pourquoi il souhaite mettre un cours en ligne, il invoque souvent le fait de chercher à motiver ses étudiants. Nous distinguerons ici le maintien de la motivation, du renforcement de la motivation des étudiants. Les risques de démotivation et d'abandon sont très nombreux dans l'enseignement à distance, même avec le soutien des nouvelles technologies. Il est donc essentiel de veiller à maintenir constamment la motivation initiale de l'apprenant. Si le maintien de cette motivation fait appel à des moyens, des trucs, des recettes de tutorat, il n'en va pas de même du renforcement de la motivation. En effet, il s'agit ici de mettre au point, dès la phase de conception du cours, de véritables stratégies motivationnelles. Quels sont les risques de démotivation des étudiants ? Comment les éviter ? Quelles bases théoriques peuvent nous guider dans notre mise au point des stratégies motivationnelles ? Quelles pistes motivationnelles le concepteur peut-il emprunter, et dans quelles perspectives ? Sur base des théories de la motivation, notre recension des données bibliographiques vise à préciser les questions que doivent se poser les concepteurs de cours à distance. De même, elle débouche, pour chaque question, sur des pistes concrètes à explorer. [less ▲]

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See detailLe support aux enseignants dans le portage de cours en ligne comme facilitateur d'un déploiement de méthodes actives dans l'enseignement supérieur
Dupont, Chantal ULg; Poumay, Marianne ULg

Conference (2004)

Le LabSET accompagne annuellement une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies ... [more ▼]

Le LabSET accompagne annuellement une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies actives, nous prônons l'idée que l'EAD n'est qu'un vecteur, un support dont on peut faire le pire comme le meilleur. L'une de nos actions, FORMADIS , assure l'accompagnement de d'EAD, une autre action accompagne des enseignants dans un curriculum diplomant, selon des principes d'isomorphisme et de transfert systématique des apprentissages au projet concret. L'article présente ces deux actions et détaille leur mise en oeuvre en soulignant les facteurs de succès et les difficultés de ces initiatives. [less ▲]

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See detailInsulin-like growth factor binding proteins (IGFBPs) in camels : revelation by western ligand blotting and partial purification of insulin-like growth factor binding protein-3 (IGFBP3)
Hammadi, Mohamed; Colinet, Frédéric ULg; Khorchani, Touhami et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2004), 8(Special issue), 53

It's well known that Insulin-like growth factor binding proteins (IGFBPs) are important in somatotrope axis in mammals. They modulate bioactivity of Insulin-like growth factor-I/II. In this study, we ... [more ▼]

It's well known that Insulin-like growth factor binding proteins (IGFBPs) are important in somatotrope axis in mammals. They modulate bioactivity of Insulin-like growth factor-I/II. In this study, we identified IGFBPs in blood of camel by Western ligand blotting and we investigated a procedure to purify IGFBP-3 from this species. Three distinct bands are observed. By analogy to that known in mammals, they are identified as insulin-like growht factor binding-3 (IGFBP-3:40-46 kDa), insulin-like growth factor binding proteins-2 (IGFBP-2: 32 kDa) and insulin-like growth factor binding proteins-1 (IGFBP-1: 28 kDa). IGFBP-3 precipitates in 40-60% by ammonium sulfate saturation of serum. Acidification of 40-60% fraction at pH 3.0 is necessary to dissociate IGFBP-3 from tertiary complex (IGFBP-3, acid labile subunit and IGF-I/II). IGFBP-3 is partially purified by anionic ions exchange chromatography at pH 8.5. It forms a clear doublet band. [less ▲]

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