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See detailExperimental determination of the number of flux lines trapped by microholes in superconducting samples
Silhanek, Alejandro ULg; Raedts, S.; Van Bael, M. J. et al

in Physical Review. B : Condensed Matter (2004), 70(5),

The influence of a periodic landscape of pinning sites on the vortex dynamics in Pb thin films is explored by ac susceptibility measurements. For different amplitudes h of the ac drive, the ac ... [more ▼]

The influence of a periodic landscape of pinning sites on the vortex dynamics in Pb thin films is explored by ac susceptibility measurements. For different amplitudes h of the ac drive, the ac susceptibility chi=chi'+ichi" exhibits a complex field dependence associated with different dynamic regimes. At very low ac drives where both multiquanta vortices trapped by the antidots and interstitial vortices oscillate inside the pinning potential (intravalley motion), a small kink in chi'(H) together with a very low dissipation is observed. At intermediate ac excitations such that vortices in the antidots remain pinned, whereas interstices are driven out of the pinning well, a more pronounced kink in the screening coinciding with the onset of dissipation [chi"(H)not equal0] indicates the entrance of interstitial vortices. Eventually, at high enough amplitudes all vortices are set in motion and the penetration of interstitial vortices appears as a sudden reduction of the shielding power. We show that these distinctive features allow us to identify clearly the maximum number of flux quanta per hole, regardless of the vortex dynamic regime. [less ▲]

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See detailArticuler présence et distance pour former aux technologies de l'éducation et de la formation. Communication présentée au Colloque TICE Méditérannée, Nice
Denis, Brigitte ULg; Vandeput, Etienne ULg

in Actes du Colloque TICE Méditerranée : « L'humain dans l'enseignement en ligne » (2004)

For five years, a postgraduate program in Educational and Training Technology has been developed by both Universities of Liège and Namur (Belgium). This program addresses already graduated adults having a ... [more ▼]

For five years, a postgraduate program in Educational and Training Technology has been developed by both Universities of Liège and Namur (Belgium). This program addresses already graduated adults having a training background. Depending on his/her training experience and a personnal project, the participant has the opportunity of developing different competencies profiles like: educational designer, designer and manager of training systems integrating ICT, e-tutor or trainer in e-learning environments, designer and producer of information or learning multimedia products. The plan of action articulates face-to-face and distance activities. It is based on several principles like definition and follow-up of a personal learning project, clarification of the actors’ roles, systematical use of technologies, active pedagogical methods and quality process. The authors present a series of scenarios including several types of distance activities. On the one hand, they illustrate these activities, insisting on their target goals, their meaning and usefulness, their development and their evaluation criteria. On the other hand, they discuss the organization of face-toface, blended or distance activities taking into account different sides of a learning system in order to stimulate the thought of designers and animators of such learning environments. [less ▲]

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See detailComment je previens...un érysipele, ses consequences et ses récidives.
Henry, Frédérique ULg; Salomon-Neira, M. D.; Letot, Bernard ULg et al

in Revue Médicale de Liège (2004), 59(7-8), 423-5

Erysipelas is a serious infection of the skin. In case of delay in initiating adequate antibiotic treatment, complications, sometimes dismal, can supervene. In addition, erysipelas shows a tendancy to ... [more ▼]

Erysipelas is a serious infection of the skin. In case of delay in initiating adequate antibiotic treatment, complications, sometimes dismal, can supervene. In addition, erysipelas shows a tendancy to recurrences. The prevention of an episode of erysipelas calls for correct personal hygiene and adequate use of topical antiseptics in case of skin effraction, even when minimal. When erysipelas is established, a rapidly initiated antibiotic treatment for a prolonged period prevents streptococcal gangrene complications. Elastic contention of any leg edema from venous or lymphatic origin and prophylactic antisepsis of discrete wounds help in preventing erysipelas recurrences. [less ▲]

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See detailCompte rendu de l'ouvrage de M. Hénaff : Le prix de la vérité
Cormann, Grégory ULg

in Etudes Philosophiques (2004), 3

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See detailThe university of Lubumbashi between the local and the global: Dynamics, management, and future of university education in the Democratic Republic of Congo
Rubbers, Benjamin ULg

in Canadian Journal of African Studies (2004), 38(2), 318-343

Taking a bottom-up approach, this article offers a case study on the local meanings given by different categories of actors to university education in Lubumbashi.

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See detailMarble classification using scale spaces
Dislaire, Godefroid; Pirard, Eric ULg; Vanrell, Maria

in Prykryl, R. (Ed.) Dimension Stone (2004)

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See detailNew trends in flood risk analysis: working with 2D flow models, laser DEM and a GIS environment
Archambeau, Pierre ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Greco, M.; Carravetta, A.; Della Morte, R. (Eds.) Proceedings of the 2nd International Conference on Fluvial Hydraulics: River Flow 2004 (2004)

This paper outlines the integration of new and accurate laser DEM into the determination of floodplains. Global and robust GIS environment is absolutely necessary to manage this very large amounts of ... [more ▼]

This paper outlines the integration of new and accurate laser DEM into the determination of floodplains. Global and robust GIS environment is absolutely necessary to manage this very large amounts of topographic data. The development and interaction of 2D flow models, simplified or not, ensures to offer more accurate and flexible physically based tools to the decision-makers. [less ▲]

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See detailArthur Schitzler (1862-1931): Fräulein Else
Letawe, Céline ULg

in Arte Buchtipp, Reihe Junge Literaturkritik (2004)

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See detailLe medicament du mois. Rosuvastatine (Crestor).
Scheen, André ULg

in Revue Médicale de Liège (2004), 59(1), 56-9

Rosuvastatin (Crestor) has been recently launched in Belgium by AstraZeneca. This new statin is indicated for the treatment of primary hypercholesterolaemia or combined dyslipidaemia, when changes in ... [more ▼]

Rosuvastatin (Crestor) has been recently launched in Belgium by AstraZeneca. This new statin is indicated for the treatment of primary hypercholesterolaemia or combined dyslipidaemia, when changes in dietary habits are insufficient. Direct comparative randomised clinical trials with other statins demonstrated that rosuvastatin exerts a more favourable impact on lipid profile. When compared on a mg basis to other statins, rosuvastatin is associated with a greater reduction in total and LDL cholesterol levels and a greater increase of HDL cholesterol concentration, with a similar decrease in triglyceride levels. At the usual dosage of 10 mg, rosuvastatin allowed to reduce LDL cholesterol below recommended target levels for at risk patients among almost 80% of treated individuals in phase III clinical trials. If necessary, the daily dosage may be increased to 20 mg, or up to 40 mg (maximal dose), mostly in case of severe familial hypercholesterolaemia. Safety profile is good and similar to that of other commercialised statins. Rosuvastatin is currently evaluated in an extensive programme of randomised clinical trials (Galaxy programme) in order to demonstrate its efficacy in both prevention of atherosclerosis and reduction of cardiovascular morbidity and mortality. [less ▲]

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See detailStudy of the cooling process of an extruded aluminium profile
Bouffioux, Chantal ULg; Carton, Marc ULg; Lecomte-Beckers, Jacqueline ULg et al

in Gosh, Somnath; Castro, Jose M.; Lee, June K. (Eds.) Proceedings of Materials Processing and Design: Modeling, Simulation and Applications (NUMIFORM 2004) (2004)

The prediction of the final axial stresses and the residual strains of complex extruded aluminium profiles requires a good knowledge of the material behavior and of the industrial process. This paper is ... [more ▼]

The prediction of the final axial stresses and the residual strains of complex extruded aluminium profiles requires a good knowledge of the material behavior and of the industrial process. This paper is focused on the methods required to provide the whole set of data: material ones and process ones. Scanning differential calorimetry, dilatometry and diffusivity tests identify thermophysic material properties and hot tensile tests identify parameters of the elastovisco- plastic Norton-Hoff law. The description of the industrial process and its simulations are described. Then a sensitivity analyzis provides the cooling key parameters causing the undesired final curvature during the industrial process. [less ▲]

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See detailThe crustacean scavenger guild in Antarctic shelf, bathyal and abyssal communities
De Broyer, Claude; Nyssen, Fabienne ULg; Dauby, Patrick ULg

in Deep-Sea Research Part II, Topical Studies in Oceanography (2004), 51(14-16), 1733-1752

Peracarid crustaceans form a significant part of the macrobenthic community that is responsible for scavenging on large food falls onto the sea floor. Although several studies are available about ... [more ▼]

Peracarid crustaceans form a significant part of the macrobenthic community that is responsible for scavenging on large food falls onto the sea floor. Although several studies are available about scavengers from tropical and temperate seas, very little information has been published about such species living in Antarctic waters, particularly at greater depths. The present paper is based on a collection of 31 baited trap sets deployed in the Weddell Sea, Scotia Sea, and off the South Shetland Islands, and presents results on the geographical and bathymetric distribution of the different taxa and on the eco-functional role of scavengers. <br /> <br />Some 68,000 peracarid crustaceans from 62 species were collected. About 98% of individuals belonged to the amphipod superfamily Lysianassoidea, and 2% to the isopod family Cirolanidae. Of these species, 31, including 26 lysianassoids (1400 individuals), were collected deeper than 1000 m. <br /> <br />High species richness was discerned for the eastern Weddell Sea shelf compared with other Antarctic areas. The Antarctic slope also seems to be richer in species than other areas investigated in the world, while in the abyss, scavenger species richness appears to be lower in Antarctica. A richness gradient was thus observed from the shelf to the deep. For amphipods, a number of species extend their distribution from the shelf to the slope and only one to the abyssal zone. <br /> <br />Amphipod species showed degrees of adaptation to necrophagy. The functional adaptations of the mandible and the storage function of the gut are discussed. Feeding experiments conducted on lysianassoid species collected at great depths and maintained in aquaria showed a mean feeding rate of about 1.4–4.1% dry body weight day−1, which is consistent with data obtained from other species. [less ▲]

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See detailLe sourire de Marcel La Haye
Purnelle, Gérald ULg

in La Haye, Marcel (Ed.) Poésies (2004)

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See detailNovel types of mutation responsible for the dermatosparactic type of Ehlers-Danlos syndrome (Type VIIC) and common polymorphisms in the ADAMTS2 gene.
Colige, Alain ULg; Nuytinck, Lieve; Hausser, Ingrid et al

in The Journal of investigative dermatology (2004), 123(4), 656-63

Ehlers-Danlos syndrome (EDS) type VIIC, or dermatosparactic type, is a recessively inherited connective tissue disorder characterized, among other symptoms, by an extreme skin fragility resulting from ... [more ▼]

Ehlers-Danlos syndrome (EDS) type VIIC, or dermatosparactic type, is a recessively inherited connective tissue disorder characterized, among other symptoms, by an extreme skin fragility resulting from mutations inactivating ADAMTS-2, an enzyme excising the aminopropeptide of procollagens type I, II, and III. All previously described mutations create premature stop codons leading to a marked reduction in the level of mRNA. In this study, we analyzed the ADAMTS2 cDNA sequences from five patients displaying clinical and/or biochemical features consistent with a diagnosis of either typical or potentially mild form of EDS type VIIC. Three different alterations were detected in the two patients with typical EDS type VIIC. The first patient was homozygous for a genomic deletion causing an in-frame skipping of exons 3-5 in the transcript. In the second patient, the allele inherited from the mother lacks exon 3, generating a premature stop codon, whereas the paternal allele has a genomic deletion resulting in an in-frame skipping of exons 14-16 at the mRNA level. Although the exons 3-5 or 14-16 encode protein domains that have not been previously recognized as crucial for ADAMTS-2 activity, the aminoprocollagen processing was strongly impaired in vitro and in vivo, providing evidence for the requirement of these domains for proper enzyme function. The three other patients with a phenotype with some resemblance to EDS type VIIC only had silent and functionally neutral variations also frequently found in a normal population. [less ▲]

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See detailExperimental study of the charring rate of tropical hardwoods
Njankouo, Jacques Michel; Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg

in Fire & Materials (2004), 28(1, JAN-FEB), 15-24

This paper describes an experimental investigation of the charring rates of timber. An experimental procedure was designed for assessing the charring rate of 20 specimens exposed to fire in a single test ... [more ▼]

This paper describes an experimental investigation of the charring rates of timber. An experimental procedure was designed for assessing the charring rate of 20 specimens exposed to fire in a single test, with one-dimensional heat transfer conditions. Each test specimen was manufactured by gluing seven laminates together. Four thermocouples were inserted at different depths in four different laminates located in the middle of the test specimen. The test was conducted using a gas-fired furnace and specimens were exposed to the standard ISO 834 fire. In order to evaluate the fire performance of tropical hardwoods, seven different species with densities ranging from 500 to 1000 kg/m(3) were used. For the purpose of verifying the experimental procedure against existing data, two softwood species (spruce and fir) and one European hardwood species (oak) were also examined. Experimental results indicate that the test method and procedure can be used for assessing the charring rate of timber both for softwood and for hardwood species. They also show that the density of wood significantly affects the charring rate and that the values recommended in Eurocode 5 for high densities are somewhat too conservative. Copyright (C) 2004 John Wiley Sons, Ltd. [less ▲]

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