References of "2003"
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See detailMechanical behaviour of chalk reservoir: Numerical modelling of water sensitivity and time dependence effects
Collin, Frédéric ULg; Cui, Yu Jun; Schroeder, Christian ULg et al

Conference (2003)

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore ... [more ▼]

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore fluids by introducing the concept of suction. Secondly, a model able to reproduce time dependence behaviour. Eventually, the paper gives a simulation of an academic reservoir during depletion and waterflooding phase. [less ▲]

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See detailHaplotype sharing refines the location of an imprinted quantitative trait locus with major effect on muscle mass to a 250-kb chromosome segment containing the porcine IGF2 gene
Nezer, C.; Collette, C.; Moreau, L. et al

in Genetics (2003), 165(1), 277-285

We herein describe the fine mapping of an imprinted QTL with major effect on muscle mass that was previously assigned to distal SSC2p in the pig. The proposed approach exploits linkage disequilibrium in ... [more ▼]

We herein describe the fine mapping of an imprinted QTL with major effect on muscle mass that was previously assigned to distal SSC2p in the pig. The proposed approach exploits linkage disequilibrium in combination with QTL genotyping by marker-assisted segregation analysis. By identifying a haplotype shared by all "Q" chromosomes, we map the QTL to an approximately 250-kb chromosome segment containing INS and IGF2 as the only known paternally expressed genes. This considerably reinforces the candidacy of these genes, justifying their detailed analysis. [less ▲]

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See detailL’herpèsvirose canine
Ronsse, V.; Poulet, H.; Verstegen, J. et al

in Annales de Médecine Vétérinaire (2003), 147(2, APR-MAY), 65

Canine herpesvirus is known to be a causal agent of reproduction disorders and diseases of the upper respiratory system. Subclinical infections are also frequently observed. The interest for the virus has ... [more ▼]

Canine herpesvirus is known to be a causal agent of reproduction disorders and diseases of the upper respiratory system. Subclinical infections are also frequently observed. The interest for the virus has risen in recent years especially since latency has been demonstrated and a new vaccine has been developed. In this review article we will successively deal with virus characteristics, epidemiology, pathogenesis, clinical signs, diagnosis as well as therapy and prevention. [less ▲]

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See detailLe Gigantisme : Un mystère élucidé
Beckers, Albert ULg

in Revue Roumaine d'Endocrinologie (2003), 2(4), 88-9394-97

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See detailDevelopment and evaluation of an automated atlas-based image analysis method for microPET studies of the rat brain.
Rubins, Daniel J.; Melega, William P.; Lacan, Goran et al

in NeuroImage (2003), 20(4), 2100-18

An automated method for placement of 3D rat brain atlas-derived volumes of interest (VOIs) onto PET studies has been designed and evaluated. VOIs representing major structures of the rat brain were ... [more ▼]

An automated method for placement of 3D rat brain atlas-derived volumes of interest (VOIs) onto PET studies has been designed and evaluated. VOIs representing major structures of the rat brain were defined on a set of digitized cryosectioned images of the rat brain. For VOI placement, each PET study was registered with a synthetic PET target constructed from the VOI template. Registration was accomplished with an automated algorithm that maximized the mutual information content of the image volumes. The accuracy and precision of this method for VOI placement was determined using datasets from PET studies of the striatal dopamine and hippocampal serotonin systems. Each evaluated PET study could be registered to at least one synthetic PET target without obvious failure. Registration was critically dependent upon the initial position of the PET study relative to the synthetic PET target, but not dependent on the amount of synthetic PET target smoothing. An evaluation algorithm showed that resultant radioactivity concentration measurements of selected brain structures had errors=2% due to misalignment with the corresponding VOI. Further, radioligand binding values calculated from these measurements were found to be more precise than those calculated from measurements obtained with manually drawn regions of interest (ROIs). Overall, evaluation results demonstrated that this atlas-derived VOI method can be used to obtain unbiased measurements of radioactivity concentration from PET studies. Its automated features, and applicability to different radioligands and brain regions, will facilitate quantitative rat brain PET assessment procedures. [less ▲]

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See detailGENIE: a ground-based precursor for the IRSI-Darwin mission
Absil, Olivier ULg

in Aime, Claude; Soummer, Rémi (Eds.) Astronomy with High Contrast Imaging (2003)

During the preliminary phase A of the Ground-based European Nulling Interferometer Experiment (GENIE), a number of interferometric configurations have been studied, in the cases of exozodiacal cloud and ... [more ▼]

During the preliminary phase A of the Ground-based European Nulling Interferometer Experiment (GENIE), a number of interferometric configurations have been studied, in the cases of exozodiacal cloud and hot Jupiter detection. Their expected performances have been computed in light of the measured or expected performances of the VLTI sub-systems. A simple Bracewell nulling interferometer, formed of two Unit Telescopes and working in the L' or N bands, has been identified as a good candidate configuration for exozodiacal cloud detection. External or internal chopping, fringe tracking and intensity matching will be critical issues for this configuration. In the case of hot Jupiter detection, a double Bracewell with internal modulation in the L' band seems well appropriate, and should allow to carry out low resolution spectroscopy on a few bright exoplanets. The basic assumptions and computations which have lead to these candidate configurations are described in this paper. [less ▲]

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See detailEffect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil
Delille, Daniel; Pelletier, Emilien; Delille, Bruno ULg et al

in Polar Record (2003), 39(4), 309-318

There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre ... [more ▼]

There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediation agents on total and hydrocarbon-degrading microbial assemblages under severe Antarctic conditions. This study was conducted in two steps, from January to July 1997 and from February to November 1999 in the Géologie Archipelago (Terre Adélie, 66°40′S, 140°01′E). Changes in bacterial communities were monitored in situ after crude oil or diesel addition in a series of 600 cm2 soil sectors (20×30 cm). Four contaminated sectors were used for each experiment: diesel oil (10 ml), diesel oil (10 ml) + fertilizer (1 ml), Arabian light crude oil (10 ml), and crude oil (10 ml) + fertilizer (1 ml). Two different bioremediation agents were used: a slow release fertilizer Inipol EAP-22 (Elf Atochem) in 1997 and a fish compost in 1999. Plots were sampled on a regular basis during a three-year period. All samples were analysed for total, saprophytic psychrophilic, and hydrocarbon-utilising bacteria. A one order of magnitude increase of saprophytic and hydrocarbon-utilising micro-organisms occurred during the first month of the experiment in most of the contaminated enclosures, but no clear differences appeared between fertilized and unfertilized plots. Diesel-oil contamination induced a significant increase of all bacterial parameters in all contaminated soils. Crude-oil contamination had no clear effects on microbial assemblages. It was clear that the microbial response could be rapid and efficient in spite of the severe weather conditions. However, microbial growth was not clearly improved in the presence of bioremediation agents. [less ▲]

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See detailPion Structure Function and violation of the Momentum Sum Rule
Lansberg, Jean-Philippe ULg; Bissey, F.; Cudell, Jean-René ULg et al

in Blin, A. H.; Hiller, B.; Ruivo, M. C. (Eds.) et al Hadron Physics: Effective Theories of Low Energy QCD N°2 (2003)

We present a method to evaluate the pion structure functions from a box diagram calculation. Pion and constituent quark fields are coupled through the simplest pseudoscalar coupling. The gamma^* pi -> q ... [more ▼]

We present a method to evaluate the pion structure functions from a box diagram calculation. Pion and constituent quark fields are coupled through the simplest pseudoscalar coupling. The gamma^* pi -> q \bar q cross-section is evaluated and related to the structure functions. We then show that the introduction of non-perturbative effects, related to the pion size and preserving gauge invariance, provides us with a straighforward relation with the quark distribution. It is predicted that higher-twist terms become negligible for Q^2 larger than about 2 GeV^2 and that quarks in the pion have a momentum fraction smaller than in the proton. We enlarge the discussion concerning this violation of the momentum sum rule, emphasizing that the sum rule is recovered in the chiral limit and also when the finite size condition is not imposed. [less ▲]

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See detailTowards Scalable and Affordable Content Distribution Services
Plagemann, Thomas; Goebel, Vera; Griwodz, Carsten et al

in Proceedings of ConTel (2003)

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See detailMise au point sur l'expérimentation et la simulation
Poumay, Marianne ULg; Leclercq, Dieudonné ULg

Learning material (2003)

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See detailL'urticaire et ses implications systémiques
Dezfoulian, Bita ULg; Khalil, Z.; de LA BRASSINNE, Michel ULg

in Revue Médicale de Liège (2003), 58(12), 751-756

Urticaria is a transient eruption of erythematous or oedematous swelling of the dermis and is usually associated with itching which clinically is very easy to diagnose. However, it causes several ... [more ▼]

Urticaria is a transient eruption of erythematous or oedematous swelling of the dermis and is usually associated with itching which clinically is very easy to diagnose. However, it causes several etiological, pathophysiological and therapeutic problems. We will develop the acute and chronic urticaria as well as their different associations with systemic diseases. Some current data concerning chronic idiopathic autoimmune urticaria is reviewed. The management and therapeutics will be discussed. [less ▲]

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See detailEnfin "Tubambe" devoile son identite! Hadraphe ethiopica (Bethune-Baker) (Limacodidae), une chenille comestible des forets claires zambeziennes.
Malaisse, François ULg; Demesmaecker, Anne; Matera, Joseph et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2003), 7(2), 67-77

La consommation humaine de chenilles de Limacodidae avait été signalée en Afrique centro-australe. L’une de ces espèces, Hadraphe ethiopica, a été déterminée. Des données relatives à sa biologie ont été ... [more ▼]

La consommation humaine de chenilles de Limacodidae avait été signalée en Afrique centro-australe. L’une de ces espèces, Hadraphe ethiopica, a été déterminée. Des données relatives à sa biologie ont été rassemblées. Des analyses d’échantillons séchés ont permis de préciser leur composition chimique et leur valeur nutritionnelle, notamment sur le plan des acides aminés et des acides gras. [less ▲]

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See detailSymétries du Monde
Jaminon, Martine ULg; De Meur, Gisèle; Gottcheiner, Alain et al

Learning material (2003)

plaquette de l'exposition " Symétries du monde" présentée à la Maison de la Science

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See detailLe poulet Villages, un poulet labal élevé en plein air.
Bindelle, Jérôme ULg

Article for general public (2003)

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See detailAlgorithmes de contournement de barrières
Briquet, Cyril ULg

Master of advanced studies dissertation (2003)

GIS (Geographical Information Systems) bring an ever increasing range of solutions to decision makers seeking ever more accurate situational awareness in the issues they are facing. In particular, a GIS ... [more ▼]

GIS (Geographical Information Systems) bring an ever increasing range of solutions to decision makers seeking ever more accurate situational awareness in the issues they are facing. In particular, a GIS can provide a broad range of visual information resulting from computations that may be complex. These require to develop and implement efficient algorithms because of the massive amount of computations or data that are induced by the geographical nature of the processed data. The Urban and Rural Planning and Study Lab of University of Liege seeks to compute accessibility profiles for so-called "slow transport modes" in the Walloon Region. In this context, a relevant issue of computation of a socio-economical index based on spatial and population data is considered. The objective of this work is to modelize a problem of computation accessibility index, then solve it. The central part consists of the developement of a consistent and efficient algorithm chain to compute optimal shortest paths in geographical zones by avoiding barriers. The integration of the involved algorithms as well as the exploitation of intermediary results are fundemental aspects of the proposed solution. Two variants of the problem are modelized: DLOSP (Discrete Line-Of-Sight Paths, that does not take barriers into account) and DGSP (Discrete Geodesic Shortest Paths, that takes barriers into account). The detection and indexation of the barrieres, the refitting of the considered search space, the optimization of visibility requests and the computation of shortest paths constitute the main steps of the proposed algorithm chain. A distributed computing setup, naturally stemming from the structure of the problem itself, is briefly presented. [less ▲]

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See detailTandem high-dose therapy (HDT) for multiple myeloma: recombinant human erythropoietin therapy given between first and second HDT allows second peripheral blood stem cell transplantation without red blood cell transfusion.
Baron, Frédéric ULg; Frere, Pascale ULg; Fillet, Georges ULg et al

in British Journal of Haematology (2003), 123(1), 103-5

We evaluated the ability of recombinant human erythropoietin (rHuEpo) therapy, given before high-dose therapy (HDT), to allow autologous peripheral blood stem cell transplantation (PBSCT) without red ... [more ▼]

We evaluated the ability of recombinant human erythropoietin (rHuEpo) therapy, given before high-dose therapy (HDT), to allow autologous peripheral blood stem cell transplantation (PBSCT) without red blood cell (RBC) transfusions. Eleven multiple myeloma patients underwent tandem HDT and autologous PBSC, receiving 500 U/kg/week rHuEpo from d 30 after initial transplant. Haemoglobin levels were 9.5 +/- 1.1 g/dl and 12.5 +/- 0.9 g/dl at the first and second transplant respectively (P < 0.001). RBC transfusions were required for 10/11 patients for the first transplant versus 1/11 for the second (P < 0.001). To conclude, a short course of rHuEpo therapy before HDT facilitates the performance of an autologous transplant without RBC transfusions. [less ▲]

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See detailCiel ouvert : la fin de l'attente
Dumoulin, André ULg

in Sur, Serge; Roche, Jean-Jacques (Eds.) Annuaire français de relations internationales 2003 (2003)

Le 1er janvier 2002 entrait en vigueur le traité sur le régime « Ciel ouvert ». Longtemps attendu, cette mesure de confiance et de sécurité repose sur la surveillance aérienne codifiée de pratiquement ... [more ▼]

Le 1er janvier 2002 entrait en vigueur le traité sur le régime « Ciel ouvert ». Longtemps attendu, cette mesure de confiance et de sécurité repose sur la surveillance aérienne codifiée de pratiquement tous les territoires d’États membres de l’OSCE, de l’Atlantique à l’Oural. Pur produit de la guerre froide, « Ciel ouvert » avait pour objectif de réduire la suspicion entre les États Parties. L’instabilité qui règne aujourd’hui dans certaines régions, le caractère complémentaire du régime par rapport au traité sur les Forces conventionnelles en Europe (FCE) et l’ouverture possible et à terme de « Ciel ouvert » à des nouvelles tâches grâce aux nouvelles technologies de surveillance aérienne, offrent à ce traité de nouvelles opportunités. [less ▲]

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See detailLiège-Paris 1848 : Littérature, féminisme et Révolution
Droixhe, Daniel ULg

in Bulletin de l'Académie Royale de Langue et de Littérature Françaises (2003), LXXXI(1-2), 41-49

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See detailDrains verticaux et matériel associé
Van der Stede, Véronique ULg

in Lebeau, Marc; Suleiman, Antoine (Eds.) Tell Beydar, Five Seasons of Excavations (1995-1999), A Preliminary Report (2003)

 Cet article décrit en détail les dispositifs de drainage équipant le complexe palatial et le temple A de Tell Beydar. Il y est également question des aménagements fixes qui y sont associés et qui ... [more ▼]

 Cet article décrit en détail les dispositifs de drainage équipant le complexe palatial et le temple A de Tell Beydar. Il y est également question des aménagements fixes qui y sont associés et qui doivent vraisemblablement être interprétés comme des toilettes à siège. [less ▲]

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