References of "2003"
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See detailLes facteurs de virulence des alphaherpèsvirus
Muylkens, Benoît ULg; Meurens, François; Schynts, Frédéric et al

in Virologie (2003), 7

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See detailSept cas de réussite "atypique" éclairée par des données longitudinales familiales et scolaires
Schillings, Patricia ULg; Poncelet, Débora

in Actes du 16ème colloque international de l'ADMEE-Europe Evaluation: entre efficacité et équité (2003)

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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 detailMesure de l'effet de l'hyperimmunisation pour le contrôle de la rhinotrachéite infectieuse bovine dans les troupeaux laitiers en Belgique : analyse de survie
Dispas, Marc; Kerkhofs, Pierre; Thiry, Etienne ULg

in Epidémiologie et Santé Animale (2003), 44

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See detailFungal lectin, XCL, is internalized via clathrin-dependent endocytosis and facilitates uptake of other molecules.
Francis, Frédéric ULg; Marty-Detraves, Claire; Poincloux, Renaud et al

in European Journal of Cell Biology (2003), 82(10), 515-22

The lectin isolated from Xerocomus chrysenteron (XCL) displays a toxic activity towards insects. In order to assess its possible mode of action and to gather useful data for its potential use in insect ... [more ▼]

The lectin isolated from Xerocomus chrysenteron (XCL) displays a toxic activity towards insects. In order to assess its possible mode of action and to gather useful data for its potential use in insect-resistant transgenic plants, we investigated the effects of XCL at the cellular level. Immunofluorescence microscopy studies revealed that XCL is rapidly internalized into small endocytic vesicles that further coalesce in the perinuclear region. We show that XCL is endocytosed by the clathrin-dependent pathway, and is delivered to late endosome/lysosome compartments. The internalization of XCL seems to be general since it occurs in different cell types such as insect (SF9) or mammalian (NIH-3T3 and Hela) cell lines. In the presence of XCL, the uptake of GFP and BSA is greatly enhanced, demonstrating that XCL facilitates endocytosis. Thus, XCL could serve as a delivery agent to facilitate the endocytosis of proteins that do not enter the cell alone. [less ▲]

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See detailÉtude paléogénétique du cerf élaphe (Cervus elaphus) au cours de la transition Tardiglaciaire - Holocène ancien du Jura (15 000 – 6 000 BP) : relations entre changements morphologiques, environnementaux et génétiques
Pagès, Marie ULg

Master of advanced studies dissertation (2003)

The Late-Glacial - Holocene transition, around 13,000 to 8,000 years ago, is the world theatre of an ample climatic upsetting associated to a deep change of the landscapes. Around the rock-shelter of ... [more ▼]

The Late-Glacial - Holocene transition, around 13,000 to 8,000 years ago, is the world theatre of an ample climatic upsetting associated to a deep change of the landscapes. Around the rock-shelter of Rochedane, an archaeological site from the French Jura, the climate shifts from peri-glacial to temperate, open environment becomes progressively closed and the faunal assemblages are consequently strongly modified. In order to understand the evolutionary mechanisms implied and their different aspects, a multidisciplinary survey has been led on bones from Red Deer, Cervus elaphus, found in the shelter associated with remains of lithic industry and prehistoric art let by the hunters-gatherers during this unstable time. Isotopic geochemistry has already showed that during this period, the habitat and the diet of deers changed. Moreover, morphological studies is demonstrating that, in the same way, the size of deers seems to decrease. To complete both studies, a palaeogenetic approach was then developed to test two different alternative: do the deers found come from a single population that adapts to new ecological conditions or instead do they correspond to a succession of different populations depending on environmental conditions? The results obtained up to now do not allow to conclude between both hypotheses. However, it was demonstrated that it was possible to access authentic mitochondrial DNA sequences (control region, cytochrome b) from these prehistoric bones and to discriminate the deers of Rochedane to the individual level. Thus, this approach is promising in order to decipher in the future the possible ties between environmental, morphological and genetic changes. [less ▲]

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See detailBiodiversity, molecular phylogeny, and trophodynamics of amphipod crustaceans in the Antarctic deep-sea
De Broyer, Claude; Dauby, Patrick ULg; Nyssen, Fabienne et al

in Berichte zur Polar- und Meeresforschung (2003), 470

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See detailPhylogeny
Baudoin, Jean-Pierre ULg; Maquet, A.

in Plant and Soil (2003), 252(1), 55-128

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See detailCes nombres que l'on dit "imaginaires".
Rosseel, H.; Schneider, Marguerite ULg

in Petit X (2003), 63

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See detailUtilisation pédagogique d'Internet dans l'enseignement secondaire : pourquoi et comment utiliser Internet à des fins pédagogiques ? Comment évaluer l'acquisition de compétences chez les élèves ?
Hubert, Sylviane; Massart, Valérie ULg

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 detailÀ l’ombre du pouvoir. Les entourages princiers au Moyen Âge
Marchandisse, Alain ULg; Kupper, Jean-Louis ULg

Book published by Droz (2003)

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See detailEquine trypsin: purification and development of a radio-immunoassay
Grulke, Sigrid ULg; Deby-Dupont, G.; Gangl, M. et al

in Veterinary Research (2003), 34(3, May-Jun), 317-330

Shock is accompanied by generalised splanchnic hypoperfusion, and splanchnic organs like the pancreas can be damaged, as shown in animal experimental models and in humans, by the presence of high plasma ... [more ▼]

Shock is accompanied by generalised splanchnic hypoperfusion, and splanchnic organs like the pancreas can be damaged, as shown in animal experimental models and in humans, by the presence of high plasma concentrations of trypsin and other pancreatic enzymes. In order to design a radioimmunoassay technique (RIA) for the measurement of equine trypsin-like immunoreactivity (TLI) in biological fluids, trypsin was purified (with purity greater than or equal to 96 %) from the equine pancreas by extraction in an acid medium, ammonium sulfate precipitations, gel filtration chromatography and, after activation of trypsinogen into trypsin, affinity chromatography. Gel polyacrylamide electrophoresis showed a monomeric enzyme with a molecular weight of 27 kDa. The purified equine trypsin served for the immunisation of rabbits in order to obtain a specific antiserum, and the labelled antigen was prepared by iodination of equine trypsin with I-125. The RIA was based on the binding of the antigen to the antibody followed by the separation of the antigen-antibody complex by immunoprecipitation in the presence of sheep anti-rabbit gammaglobulins and the assay of the radioactivity in the precipitate. The RIA showed good sensitivity, specificity, precision, accuracy and reproducibility. The reference mean value of TLI in the plasma of healthy horses (n = 20) was 30.01 +/- 6.84 ng/mL (upper confidence limit 50.52 ng/mL; p < 0.01). Three horses with non strangulating intestinal obstruction without shock showed TLI values within normal limits whereas 5 of 7 horses with strangulation obstruction showed TLI levels above the upper confidence limit. Further studies using the RIA and the enzymatic assay should be performed in order to confirm the role of the pancreas in equine intestinal obstruction. [less ▲]

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See detailTwo-dimensional harmonic balance finite element modelling of electrical machines taking motion into account
Gyselinck, Johan; Dular, Patrick ULg; Vandevelde, Lieven et al

in Compel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering (2003), 22(4), 1021-1036

An original and easy-to-implement method to take into account movement (motion) in the 2D harmonic balance finite element modelling of electrical machines is presented The global harmonic balance system ... [more ▼]

An original and easy-to-implement method to take into account movement (motion) in the 2D harmonic balance finite element modelling of electrical machines is presented The global harmonic balance system of algebraic equations is derived by applying the Galerkin approach to both the space and time discretisation. The harmonic basis functions, i.e. a cosine and a sine function for each nonzero frequency and a constant function 1 for the DC component, are used for approximating the periodic time variation as well as for weighing the time domain equations in the fundamental period. In practice, this requires some elementary manipulations of the moving band stiffness matrix. Magnetic saturation and electrical circuit coupling are considered in the analysis as well. As an application example, the noload operation of a permanent-magnet machine is considered. The voltage and induction waveforms obtained with the proposed harmonic balance method are shown to converge well to those obtained with time stepping. [less ▲]

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See detailStochastic modelling of the hydrogeological environment in low permeability sediment
Huysmans, Marijke; Berckmans, Arne; Feyen, Luc et al

in Proceedings of IAMG 2003 (2003)

In Belgium, the Boom Clay is being considered as a potential host formation for the disposal of nuclear waste. Part of the safety assessment and feasibility studies of a potential nuclear waste disposal ... [more ▼]

In Belgium, the Boom Clay is being considered as a potential host formation for the disposal of nuclear waste. Part of the safety assessment and feasibility studies of a potential nuclear waste disposal consists of hydrogeological modeling. In order to model the groundwater flow and possible radionuclide transport in the clay, the spatial distribution of the hydraulic conductivity of the clay has to be assessed. In this study, geostatistical methods are used to characterize the hydraulic conductivity field. More specific, direct sequential simulation of the hydraulic conductivity is carried out, using measurements of hydraulic conductivity and 4 types of soft data or secondary variables: resistivity logs, gamma ray logs, grain size measurements and descriptions of the lithology. The primary and secondary information is analyzed with geostatistical tools and combined to generate 100 fields of the hydraulic conductivity of the Boom Clay. Next, each field is input to a groundwater flow model to predict the advective travel time of constituents released from the disposed waste in the Boom Clay to the aquifers surrounding the Boom Clay. Statistical analysis of the ensemble of model predictions results in a predictive distribution for the advective travel time. This distribution reflects the uncertainty of the advective travel time that results from the uncertainty of the spatial distribution of the hydraulic conductivity of the Boom Clay [less ▲]

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