References of "Scientific congresses and symposiums"
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See detailCombining stochastic simulations and inverse modelling for delineation of groundwater well capture zones
Rentier, Céline; Roubens, Marc ULg; Dassargues, Alain ULg

in Iu (Ed.) Computational Methods in Engineering and Science (2003)

In hydrogeology, protection zones of a spring or a pumping well are often delimited by isochrones that are computed using calibrated groundwater flow and transport models. In heterogeneous formations, all ... [more ▼]

In hydrogeology, protection zones of a spring or a pumping well are often delimited by isochrones that are computed using calibrated groundwater flow and transport models. In heterogeneous formations, all direct and indirect data, respectively called hard and soft data, must be used in an optimal way. Approaches involving in situ pumping and tracer tests, combined with geophysical and/or other geological observations, are developed. In a deterministic framework, the calibrated model is considered as the best representation of the reality at the current investigation stage, but result uncertainty remains unquantified. Using stochastic methods, a range of equally likely isochrones can be produced allowing to quantify the influence of our knowledge of the aquifer parameters on protection zone uncertainty. Furthermore, integration of soft data in a conditioned stochastic generation process, possibly associated with an inverse modeling procedure, can reduce the resulting uncertainty. A stochastic methodology for protection zone delineation integrating hydraulic conductivity measurements (hard data), head observations and electrical resistivity data (soft data) is proposed. [less ▲]

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See detailA high-order, high-frequency method for surface scattering by convex obstacles
Bruno, O.; Geuzaine, Christophe ULg

in Proceedings of the 14th Conference on the Computation of Electromagnetic Fields, COMPUMAG 2003 (2003)

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See detailLocal Hydrological effects in Membach, Belgium: influence on the long term gravity variation
Van Camp, Michel; Dassargues, A.; Vanneste, K. et al

Conference (2003)

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See detailMicro-macro analysis of steel sheet behaviour in finite element simulations. Application to deep-drawing process.
Duchene, Laurent ULg; Godinas, A.; Cescotto, Serge ULg et al

in Journal de Physique IV (2003), 105

This paper presents a constitutive law based on taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method ... [more ▼]

This paper presents a constitutive law based on taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material's texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailMeasure Nouns (MNs), a case of ongoing grammaticalization?
Brems, Lieselotte ULg

Conference (2003)

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See detailThe cold atom micromaser in a vertical configuration
Martin, John ULg; Bastin, Thierry ULg

Poster (2003)

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See detailL'interscripteur et le rhapsode
Servais, Christine ULg

in Parouty-David, Françoise; Zilberberg, Claude (Eds.) Sémiotique et esthétique (2003)

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See detailWhole-body FDG PET in the follow-up of pediatric patients with lymphoma.
DE BARSY; DEPAS, G.; DRESSE, MF. et al

in Journal of Nuclear Medicine (The) (2003), 44

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See detailThe State of the Art in Multiple Object Tracking Under Occlusion in Video Sequences
Gabriel, Pierre F.; Verly, Jacques ULg; Piater, Justus ULg et al

Conference (2003)

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See detailWhole-body FDG PET imaging as a method for staging and early assessment of treatment response in pediatric patients with lymphoma.
DE BARSY; DEPAS, G.; DRESSE, MF. et al

in Journal of Nuclear Medicine (The) (2003), 44

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See detailBauforschung et dendrochronologie
Hoffsummer, Patrick ULg

in De Jonge, Krista; Van Baelen, Koen (Eds.) Preparatory Architectural Investigation in the Restauration of Historical Buildings (2003)

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See detailEffects of a dust storm on the coupled Mars thermosphere ionosphere
Witasse, Olivier; Bougher, S. W.; Cerisier, Jean-Claude et al

Conference (2003)

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See detailInsert'Prof : pour un dispositif d'accompagnement des jeunes enseignants favorisant une insertion réussie dans la vie professionnelle
Beckers, Jacqueline ULg; Andrianne, Sabine; Bourguignon, Luc et al

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailL'évaluation de la maîtrise d'une langue, maternelle ou étrangère
Defays, Jean-Marc ULg; Maréchal, Marielle ULg

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2003), 15-16

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See detailLes méthodes particulières de recherche - Aperçu de la loi du 6 janvier 2003
Jacobs, Ann ULg

in Masset, Adrien; Jacobs, Ann (Eds.) Actualités de droit pénal et de procédure pénale (2003)

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See detailPregnancy-associated glycoprotein concentrations in plasma and milk samples for early pregnancy diagnosis in Lacaune dairy sheep.
El Amiri, B.; Cognié, Y.; Sulon, J. et al

in Reproduction in Domestic Animals (2003), 38(4), 322

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See detailEffet d’un complément antioxydant sur les marqueurs sanguins du stress oxydant chez des galopeurs entraînés
De Moffarts, Brieuc; Kirschvink, N.; Art, Tatiana ULg et al

in Congrès de l'Association Vétérinaire Equine Française (AVEF) (2003)

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See detailEntomopathogenic activity of Beauveria bassiana against Psoroptes cuniculi
Lekimme, M.; Mignon, Bernard ULg; Tombeux, S. et al

Poster (2003)

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See detailTesting and modelling of welded joints between elliptical hollow sections
Bortolotti, E.; Jaspart, Jean-Pierre ULg; Pietrapertosa, C. et al

in Proceedings of the 10th International Symposium on Tubular Structures (2003)

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See detailEstimation in censored linear regression via preliminary smoothing
Heuchenne, Cédric ULg; Van Keilegom, Ingrid

in Bulletin of the International Statistical Institute, 54th Session (2003)

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See detailNavicular syndrome - The comparison of MRI and histopathological findings
Bolen, Géraldine ULg; Busoni, Valeria ULg; Heiman, M. et al

Poster (2003)

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See detailLa motivation pour la lecture, au-delà d'une simple question de goût
Schillings, Patricia ULg

in Caractères (2003), 10(1), 11-12

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See detailL'Europe gravettienne
Otte, Marcel ULg; Noiret, Pierre ULg

in Desbrosse, René; Thévenin, André (Eds.) Préhistoire de l'Europe. Des origines à l'âge du Bronze (2003)

The Gravettian tradition appears to develop from local Mousterian and different cultures at the beginning of the European Upper Palaeolithic (Chatelperronian in the west, foliate points in the north and ... [more ▼]

The Gravettian tradition appears to develop from local Mousterian and different cultures at the beginning of the European Upper Palaeolithic (Chatelperronian in the west, foliate points in the north and the Streletskaian in the east). New technological characteristics proper to the Gravettian developed in different regions of middle Europe, apparently around the same time: thin, standardised blades, development of small backed armatures. The Gravettian is thus a pan-European phenomenon, extending across middle Europe, but developing locally. Development within the Gravettian is quite complex, with regional areas of expansion of processes varying according to the phase or facies considered. The Moldavian sequence is key to understanding the regional development of the Gravettian. It can be integrated with that of central and eastern Europe. General developmental tendencies appeared here, connecting regional patterns with traditional roots. The Gravettian culture can thus be considered a collection of technological processes probably adopted by diverse ethnic groups which nevertheless were in regular contact. During the Second Pleniglacial, important climatic changes provoked a division between central and western groups, leading to profound differences between south-eastern Europe (Ukraine, the Carpathian region, the Balkans) and western Europe (Solutrean-Magdalenian succession). [less ▲]

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See detailVisual urban space assessment from sky shape analysis
Teller, Jacques ULg; Sarradin, F.; Siret, D.

in Gnauck, A.; Heinrich, R. (Eds.) Informatics for Environmental Protection: The Information Society and Enlargement of the European Union (EnviroInfo 2003) (2003)

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See detailBelgian Report to the IAG-subcommission “EUREF”
Bruyninx, Carine; Defraigne, Pascale; Ducarme, Bernard et al

in Proceedings of EUREF 2002 Symposium (2003)

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See detailTrace elements concentrations in by-caught Norwegian harbour porpoises (Phocoena phocoena): sources of variation and insights in their feeding ecology through stable carbon and nitrogen measurements
Fontaine, Michaël; Siebert, Ursula; Tolley, K. et al

Conference (2003)

Great concern raised from the populations decline observed for the harbour porpoises in the North Atlantic but Norwegian populations remain poorly characterized. Trace elements concentrations (Zn, Cu, Cd ... [more ▼]

Great concern raised from the populations decline observed for the harbour porpoises in the North Atlantic but Norwegian populations remain poorly characterized. Trace elements concentrations (Zn, Cu, Cd, Se, total Hg) have been determined in liver, kidney and muscle of 23 harbour porpoises (Phocoena phocoena) caught in fishing nets along the Norwegian coast. Sources of variation have been examined with a special interest on geographic location and diet modifications analysed through stable isotopes of carbon (δ13C) and nitrogen (δ15N). This study further intend to complete previous feeding ecology knowledge with a combined approach of stable isotopes ratios and metals concentrations as dietary tracers. Norwegian porpoises display mean hepatic concentrations of Zn, Cu and total Hg (96 ± 18; 25 ± 6 ; 15 ± 10 µg.g-1dw respectively) among the lowest in the North-Atlantic. These results suggest that porpoises from this region are less exposed to these metals than others sites such as the North Sea. The low burdens of certain metals (Zn, Cu, Hg) observed make the Norwegian populations suitable to be used as reference level for future ecotoxicological studies on this species. However, renal Cd concentrations (6.7 ± 4.1µg.g-1dw) are twice higher than those from the Southern North Sea. They probably reflect dietary modifications of the porpoises through their range. The low isotopic composition (mean muscle values: d13C=-18.5 ± 0.6 0/00 and δ15N=13.5 ± 1.2 0/00) suggests that Norwegian porpoises feed on more oceanic preys as confirmed by variations of hepatic Hg and renal Cd concentrations. Given that teutophagous marine mammals present higher concentrations of Cd than piscivorous ones. The results obtained lead to the conclusion that the Norwegian porpoises rely on more oceanic squids than those from the North Sea. [less ▲]

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See detailL’espace, l’individu et la territorialisation
Gauthier, Jean-Marie ULg; Bonfils, Serge; Koskas, Alain et al

in Gorot, Jacques; Bucalo-Triglia, Adèle (Eds.) L’espace de la relation : le réel et l’imaginaire (2003)

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See detailNumerical investigation of photonic crystal fibers by spectral and multipole methods
Nicolet, A.; Guenneau, S.; Zolla, F. et al

in Asymptotics, Singularities and Homogenisation in Problems of Mechanics, Proceedings of the IUTAM Symposium (Liverpool, July 2002) (2003)

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See detailDysregulation of inflammation
Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Hoffman, A.; Robinson, N. E.; Wade, J. F. (Eds.) Proceedings of a Workshop on “Inflammatory Airway Disease: Defining the Syndrome”, Havemeyer Foundation Monograph Series No. 9 (2003)

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See detailLe système accentuel de l'interlangue d'apprenants francophones du néerlandais
Rasier, Laurent ULg

in Mettouchi, A.; Ferré, G. (Eds.) Actes du colloque international "Interfaces prosodiques" (2003)

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See detailInfluence of Hyperbilirubinemia on Spectrophotometric Measurement of 30 Biochemical Tests, using the Roche® Modular P-module
Goffinet, Julie ULg; Bodson, Quentin; Chapelle, Jean-Paul ULg et al

in Clinical Chemistry & Laboratory Medicine (2003), 41

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See detailComplex Hydrogeological Study of the Alluvial Transboundary Aquifer of Szamos/Somes (Romania-Hungary)
Lenart, Laszlo; Madarasz, Tamas; Miko, Lajos et al

in Water resources management in the 21th century. Subtheme 4, Relevance and sustainability of the intensive groundwater developments (2003)

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See detailIntervention métacognitive auprès d’élèves présentant des difficultés d’apprentissage avec ou sans trouble déficit de l’attention/hyperactivité
Büchel, F. P.; Hessels, M. G. P.; Hessels-Schlatter, C. et al

Conference (2003)

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See detailSurface Mapping of the he & SI Distribution of Four B Stars
Briquet, Maryline ULg; Luftinger, Teresa; Aerts, Conny et al

in Astrotomography, 25th meeting of the IAU, Joint Discussion 9, 17 July 2003, Sydney, Australia (2003)

In the framework of a long-term high-resolution spectroscopic monitoring campaign of slowly pulsating B stars we have discovered four spotted mid-B main-sequence stars exhibiting clear line-profile ... [more ▼]

In the framework of a long-term high-resolution spectroscopic monitoring campaign of slowly pulsating B stars we have discovered four spotted mid-B main-sequence stars exhibiting clear line-profile variability of selected He and Si lines. We derive the rotational period which is of the order of 1-2 days of these stars with a high precision. We perform surface mapping which allows us to derive the distribution of the helium and silicon on the stellar surface. We find evidence for the presence of large spots in all four stars. He overabundance is accompanied with Si underabundance or vice versa in the spots. Our data are usefull to test current diffusion theories which have been developed for spotted A-type stars. Our stars have effective temperatures around 17000K which makes them among the hottest known so far with such clear spotted patterns. It would be most valuable to have magnetic field measurements for the four stars in order to explain the surface element distribution. [less ▲]

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See detailFengycin penetration into a DPPC monlayer: a study using the Langmuir trough technique with the Brewster angle microscopy
Deleu, Magali ULg

in International symposium on surface and colloid chemistry for the life sciences (2003)

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See detail2D1/2 thermo-mechanical model of continuous casting using FEM
Pascon, Frédéric ULg; Habraken, Anne ULg

in Brucato, V. (Ed.) Proceedings of the 6th International ESAFORM Conference on Material Forming (2003)

Two complementary approaches of steel continuous casting modelling using the finite element code LAGAMINE have been developed in the M&S Department. The first one (at a macroscopic scale) describes the ... [more ▼]

Two complementary approaches of steel continuous casting modelling using the finite element code LAGAMINE have been developed in the M&S Department. The first one (at a macroscopic scale) describes the whole continuous casting process, from the free surface in the mould and through the entire machine, including thermal and mechanical behaviour of the steel. The second approach focuses on the prediction of cracks and is developed at grain scale. We present in this paper a description of the context in which the study started, the description of the macroscopic approach and some results. [less ▲]

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See detailExpression dans le double mutant levurien msb3msb4 de 2 gènes humains homologues
Bizimungu, Christelle; Burny, Arsène; Portetelle, Daniel ULg et al

Poster (2003)

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See detailCandidate VLTI Configurations for the GENIE Nulling Experiment
Absil, Olivier ULg; Gondoin, P.; Erd, C. et al

in Deming, Drake; Seager, Sara (Eds.) Scientific Frontiers in Research on Extrasolar Planets (2003)

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will ... [more ▼]

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will use the Very Large Telescope Interferometer (VLTI) operating on Mount Paranal (Chile). The objective of GENIE is to gain experience in the manufacture and operation of a nulling interferometer using a design concept and technology representative of the ESA IRSI-Darwin space mission. GENIE will prepare the IRSI-Darwin science program through a systematic search for exozodiacal dust clouds around IRSI-Darwin candidate targets. GENIE also aims to perform IRSI-Darwin related science achievable from ground including the detection of low-mass companions (if possible, hot jupiters) around nearby stars. Among the variety of telescope sizes and positions on the VLTI site, candidate interferometric configurations have been identified for GENIE, taking into account the limitation imposed by the Earth's atmosphere. They include a Bracewell interferometer for exozodiacal clouds detection in the N band and a double Bracewell configuration with internal modulation for extrasolar jupiter detection in the L' band. The present paper presents the prospective performance of these configurations in light of current specifications of major VLTI subsystems. [less ▲]

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See detailAnalysis of the Llandovery in the Paraná Basin, Paraguay, boreholes 269-R1 and 269-R2
Mauller, P. M.; Pereira, E.; Grahn, Y. et al

Conference (2003)

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See detailDétermination du régime hydrodynamique dans une colonne à bulles par tomographie électrique résistive
Marchot, Pierre ULg; Fransolet, Emmanuelle; L'Homme, Guy ULg et al

in Legrand, J. (Ed.) Récents Progrès en Génie des procédés - N°90 - Du rayonnement scientifique à la diffusion des technologies - Actes du 9ème Congrès de la Société Française de Génie des Procédés, 9-11 septembre 2003, Saint-Nazaire, France (2003)

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See detailSeismic performance of ductile steel moment frames designed according to Eurocode 3 and Eurocode 8. First step for Eurocode calibration
Sanchez-Ricart, L.; Plumier, André ULg

in Proceedings of the STESSA 2003 Conference (2003)

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See detailPhosphate mineral occurrences in Lake Baïkal sediments : Paleo-environment or diagenesis record ?
Fagel, Nathalie ULg; Alleman, L. Y.; André, Luc et al

Poster (2003)

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See detailDischarge management for frail geriatric patients : effects of an implementation project
Milissen, K; Steeman, E; Moons, P et al

Conference (2003)

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See detailTemporal variability of neurography
WANG, François-Charles ULg; Horward, Aain

Poster (2003)

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See detailMultifunctionality : realities and local stakes construction
Vanloqueren, Gaetan; Stassart, Pierre M ULg; Baret, Philipppe

Conference (2003)

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See detailStudy of a method of scale reduction to test sign legibility in fog.
Dore, J.; Colomb, M.; Cavallo, V. et al

Conference (2003)

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See detailThe Radcalwet observation campaign: relative and absolute calibration of WVR's
Pottiaux, Eric; Becker, M.; Buerki, B. et al

Conference (2003)

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See detailVision d'acteurs : le Conseil supérieur wallon des forêts et de la filière bois
Rondeux, Jacques ULg

in Actes du colloque "Le droit international dans le domaine de l'environnement. Quelles implications pour la région wallonne ?" (2003)

9 organes consultatifs wallons concernés par les matières environnementales ont décidé de mettre sur pied une journée de réflexion sur le droit international dans le domaine de l'environnement. L'objectif ... [more ▼]

9 organes consultatifs wallons concernés par les matières environnementales ont décidé de mettre sur pied une journée de réflexion sur le droit international dans le domaine de l'environnement. L'objectif est de donner une vision d'ensemble du droit international existant et en projet dans ce domaine et d'en cerner les implications pour la Région wallonne. [less ▲]

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See detailDer Einsatz neuer Medien in der regelungstechnischen Ausbildung
Schumm, Peter; Bullinger, Eric ULg; Schweickhardt, Tobias et al

in Proceedings of GMA-Kongress (2003)

This paper reviews the use of new media for teaching of control engineering.

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See detailLa violence des jeunes en regard des nouvelles socialisations
Born, Michel ULg

in Violence juvénile : nouvelles formes et stratégies locales - expériences à l'est et à l'ouest (2003)

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See detailEvolution de la consommation de viande bovine en Belgique
Duquesne, Brigitte ULg; Lebailly, Philippe ULg

in 10 èmes Rencontres, Recherche, Ruminants (2003)

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See detailQuantification of the role of mechanical parameters on the bone response around loaded titanium implants
Vandamme, Katleen; Geris, Liesbet ULg; Duyck, Joke et al

in European Cells and Materials (2003), 5(2), 96-97

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See detailIsokinetic profile of javelin throwers and relationship to field tests
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Forthomme, L. et al

in Vlaams Tijdschrift voor Sport Geneeskunde & Sport Wetenschappen (2003), 95

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See detailThe eggshell approach for the computation of electromagnetic forces in 2D and 3D
Henrotte, François; Deliège, Geoffrey ULg; Hameyer, Kay

in Sixth International Symposium on Electric and Magnetic Fields, EMF 2003: Aachen, Germany, October 6-9, 2003 (2003)

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See detailPreparation and characterization of xerogel catalyst microspheres
Alié, Christelle ULg; Ferauche, Fabrice; Heinrichs, Benoît ULg et al

Conference (2003)

For easier handling and use in fixed bed reactors, Pd-Ag/SiO2 aerogel-like xerogel catalysts were shaped into microspheres using the microencapsulation process developed by BRACE GmbH. Before the bead ... [more ▼]

For easier handling and use in fixed bed reactors, Pd-Ag/SiO2 aerogel-like xerogel catalysts were shaped into microspheres using the microencapsulation process developed by BRACE GmbH. Before the bead production process, the xerogel catalyst was ground in water and mixed with ethylene glycol and sodium alginate, the latter of which is the gelation agent. The beads were formed at a vibrating nozzle and solidified during their fall in a water tank containing calcium ions, which induce cross-linking of the alginate and consequent bead hardening. Preliminary work was done using a syringe instead of the material-consuming BRACE unit. The beads were made from a suspension of dried only, dried and calcined, or dried, calcined, and reduced catalyst. The textural properties of the beads were analyzed by nitrogen adsorption-desorption isotherms and mercury porosimetry; and bead catalytic activity was tested for selective hydrodechlorination of 1,2-dichloroethane. The beads made from a suspension of dried catalyst appear to have properties the closest to that of the xerogel reference catalyst. Porosity and surface area are maintained at their level before bead formation. However conversion of 1,2-dichloroethane decreases after the production process, possibly due to poisoning by calcium ions. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailInfluence du contenu et des modalités d'évaluation sur les indicateurs d'équités
Lafontaine, Dominique ULg; Demeuse, Marc

in Les actes du Colloque de l'Adméé sur le thème "Evaluation entre efficacité et équité" (2003)

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See detailSynthèse de ligands ditopiques en tant qu’agents de contraste pour l’imagerie de résonance magnétique.
Thonon, David ULg; Paris, Jérôme; Humblet, Jacques et al

Poster (2003)

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See detailOverexpression of the platelet P2X1 ion channel.in transgenic mice generates a novel prothrombotic phenotype.
Oury, Cécile ULg; Kuijpers, Marijke; Toth-Zsamboki, Emese et al

in Journal of Thrombosis and Haemostasis [=JTH] (2003)

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See detailAuto-associative neural networks, Part II: Feacture extraction for non-linear model updating
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 8th Internationale Conference on Recent Advances in Structural Dynamics, Southampton, 2003 (2003)

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See detailSexual interactions in triadic encounters involving paedomorphic and metamorphic Alpine newts Triturus alpestris
Denoël, Mathieu ULg

Poster (2003)

Sexual selection theories suppose that morphologically-contrasting alternative morphs may exhibit different mating tactics. Facultative paedomorphosis in newts is a suitable process to explore this ... [more ▼]

Sexual selection theories suppose that morphologically-contrasting alternative morphs may exhibit different mating tactics. Facultative paedomorphosis in newts is a suitable process to explore this question because it implies the coexistence of two morphs differing by the presence of gills and epigamic traits. The aim of this study was to find out whether paedomorphs (i.e. adult retaining larval traits) and metamorphs use similar behavioural patterns to attract mates in the presence of a rival and whether there are differences in sexual activity and success between alternative morphs. Sexual interactions in triadic encounters were staged and analysed in a standardised experimental design. The two kinds of males did not differ in terms of sexual activity, spermatophore deposition or female responsiveness. Both rival paedomorphic and metamorphic males exhibited sexual interference, but in most encounters, intruders just disturbed the courting pair. Sperm transfer success was lower in triadic encounters than in dyadic encounters. These results illustrate that inter-morph breeding also occurs in the presence of competitors, but that the success rate of the newts is considerably decreased in such competitive situations. Moreover, newts do not use alternative reproductive tactics depending of their status (i.e. paedomorph or metamorph). [less ▲]

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See detailHydrogen peroxyde in breath condensate as marker of lower airway inflammation in an experimental model of feline asthma
Kirschvink, Nathalie; Malin, D.; Delvaux, Francois et al

Conference (2003)

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See detailT cell subsets in the respiratory tract of dogs without respiratory disease : preliminary results.
Peeters, Dominique ULg; Day, M. J.; Moore, P. et al

in Proceedings of the 13th Annual Congress of the ECVIM-CA (2003)

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See detailEFFECTS OF O2 TENSION AND GLUCOSE CONCENTRATION ON THE CELLULAR RESPIRATION OF EQUINE ARTICULAR CHONDROCYTES IN CULTURE.
Schneider, Nicole ULg; Lejeune, Jean-Philippe ULg; Duyckaerts, Claire ULg et al

Poster (2003)

In vivo, articular chondrocytes are exposed to 5 to 10% O2. Chondrocytes are also suspected to produce reactive oxygen species when submitted to anoxia/re-oxygenation. We were interested to study the ... [more ▼]

In vivo, articular chondrocytes are exposed to 5 to 10% O2. Chondrocytes are also suspected to produce reactive oxygen species when submitted to anoxia/re-oxygenation. We were interested to study the effects of O2 and glucose variations on cellular respiration, glucose consumption and lactate production. Equine articular chondrocytes were cultured in suspension for 2 days under 5 or 21 % O2 in the gaseous phase, and with 0, 1.0 or 4.5 g/L glucose. The viable cells were then counted and the respiration rate (O2 consumption) of 10.106 cells was monitored by oxymetry for 2 hours; after oxymetry, glucose and lactate were measured in the medium (enzymatic assays). After 2 days, the cell viability was the best at 5% O2 and 1g/L glucose; it decreased at 4.5 g/L glucose and was the worst at 0g/L glucose, for the two O2 tensions (n=3). There was no obvious difference of the respiration rate between cells cultured at 5 and 21% O2, but respiration of chondrocytes was surprisingly low. When cells were submitted to 20 min anoxia at 0% O2, the O2 consumption was doubled at re-oxygenation for cells previously cultured at 21% O2. Glucose and lactate values found in the medium after oxymetry: lactate release in medium was similar (36.23 and 34.57 mg/L respectively) for cells cultured with 1g glucose and 5 or 21% O2 conditions; lactate values were low (2.03 and 8,63 mg/L respectively) for 4.5 g glucose and 5 or 21% O2. Glucose uptake was not different whatever the culture conditions. These results indicate a low cellular respiration with a lactate production linked to the glucose concentrationin the medium, and raise the question of the capacity of chondrocytes to produce ROS in vivo starting from the mitochondrial chain. [less ▲]

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See detailX-Ray spectromicroscopy of clusters heated by fs laser radiation
Faenov, A.Ya.; Magunov, A. I.; Pikuz, T. A. et al

Conference (2003)

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See detailVariable Blue Stragglers and the EASE Scenario
Noels-Grötsch, Arlette ULg; Scuflaire, Richard ULg; Magain, Pierre ULg et al

in Thompson, M. J.; Cunha, M. S.; Monteiro, M.J.P.F.G. (Eds.) Asteroseismology Across the HR Diagram (2003)

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See detailDioxins, furans and dioxin-like PCBs in juvenile harbour porpoises (Phocoena Phocoena) from the North sea
Beans, Cristina; Debacker, Virginie ULg; Jauniaux, Thierry ULg et al

in Organohalogen Compounds (2003)

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See detailHypochromic mature erythrocytes: a specific marker of iron deficiency
Bovy, Christophe ULg; Beguin, Yves ULg; Gothot, André ULg et al

in Acta Clinica Belgica (2003), 58-3(4), 325

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See detailUn nouveau schéma d'intégration conservatif pour des modèles constitutifs hypoélastiques irréversibles.
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg

in Potier-Ferry, M.; Bonnet, M.; Bignonnet, A. (Eds.) Actes du Sixième Colloque National en Calcul des Structures (2003)

Ce travail propose une nouvelle évaluation des forces internes pour les modèles constitutifs hypoélastiques irréversibles dans le cadre de la méthode des éléments-finis en grandes transformations. Nous ... [more ▼]

Ce travail propose une nouvelle évaluation des forces internes pour les modèles constitutifs hypoélastiques irréversibles dans le cadre de la méthode des éléments-finis en grandes transformations. Nous démontrons que cette expression des forces internes utilisée avec un schéma d'intégration du point milieu conduit à un algorithme d'intégration consistant avec les lois de la thermodynamique. [less ▲]

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See detailClinical, histopathological and immunological aspects of neosporosis in experimentally infected dogs
Lasri, Saadia ULg; Rettigner, C.; Onclin, K. et al

Conference (2003)

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See detailFinite element analysis of continuous steel casting
Castagne, S.; Pascon, Frédéric ULg; Miesse, G. et al

in Proceedings of the First International Conference Finite element for process analysis (2003)

In order to analyse the behaviour of steel during continuous casting and to improve the process, two complementary models of steel continuous casting using the finite element code LAGAMINE have been ... [more ▼]

In order to analyse the behaviour of steel during continuous casting and to improve the process, two complementary models of steel continuous casting using the finite element code LAGAMINE have been developed. We propose here a description of both macroscopic and mesoscopic approaches. The first one describes the whole continuous casting process, from the free surface in the mould and through the entire machine, including thermal and mechanical behaviour of the steel. The second approach focuses on the prediction of cracks and is developed at the grain scale. Results concerning the optimisation of the mould taper and the analysis of transverse cracks initiation are presented as industrial applications. [less ▲]

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See detailUtilisation des techniques végétales pour la stabilisation des berges : suivi de chantiers réalisés dans différents types de rivières wallonnes.
Hallot, Eric ULg; Petit, François ULg; Verniers, G. et al

in Evaluer le milieu - Journées des géographes belges (2003)

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See detailEffets fonctionnels respiratoires induits par l’inhalation du glycopyrrolate chez le cheval poussif en crise.
Art, Tatiana ULg; de Moffarts; Van Erck, Emmanuelle ULg et al

in Congrès de l'Association Vétérinaire Equine Française (AVEF) (2003)

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See detailSavoirs, compétences disciplinaires, compétences transversales : évolution ou révolution ?
Crahay, Marcel ULg

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain, mars 2002 (2003)

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