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See detailExamination of Escherichia coli from poultry for selected adhesin genes important in disease caused by mammalian pathogenic E. coli
Stordeur, Philippe; Marlier, Didier ULg; Blanco, J. et al

in Veterinary Microbiology (2002), 84(3), 231-241

A collection of 1601 extraintestinal and intestinal Escherichia coli isolated from chickens, turkeys and ducks. in Belgium, France and Spain, was hybridised with gene probes specific for fimbrial and ... [more ▼]

A collection of 1601 extraintestinal and intestinal Escherichia coli isolated from chickens, turkeys and ducks. in Belgium, France and Spain, was hybridised with gene probes specific for fimbrial and afimbrial adhesins (F17, F18, S (Sfa/F1C), Bfp, Afa, Cs31A, Intimin (Eae), Aida-1) of intestinal, urinary and invasive E. coli of mammals and with a probe specific for the P (Pap/Prs) fimbrial adhesin of urinary and invasive E. coli of mammals and birds. Three hundred and eighty-three strains (23.9%) were P-positive, 76 strains (4.8%) were Afa-positive, 75 strains (4.7%) were F17-positive, 67 strains (4.2%) were S-positive, 23 (1.4%) were Intimin-positive. and all were F18-, Cs31A-, Aidal- and Bfp-negative. The 75 F17-positive strains harboured different major subunit A-encoding gene variants, but the f17Ac variant was the most frequent (52 strains, 69,3%) and seven strains (9.3%) were not typeable. The f17G gene variant coding for the GII adhesin was the most frequent (56 strains, 75.0%), whereas the f17GI gene variant was present in four strains (5%) and 15 strains (20.0%) were not typeable. All Afa-positive strains harboured the afa-8 variant. The 23 Intimin-positive E. coli tested positive for the beta -variant (16 strains; 69.6%) or for the gamma -variant (seven strains;, 30.4%) of the eae gene. Chicken and turkey E. coli were more frequently probe-positive (43.6 and 43.1 %, respectively) than duck E. coli 31.5%) and extraintestinal E. coli were also more frequently probe-positive (48.4%) than intestinal strains (18.5%). Different combinations of probe positive hybridisation results were observed in 72 of the 540 probe-positive E. coli (13.3%). The most frequent combinations were between AfaE-8 and F17 probes (47 strains; 8.7%) and between P and S probes (13 strains. 2.4%). Although f17- and afa-8-related DNA sequences can be plasmid-located in mammalian E. coli. they were not in avian E. coli. Besides the P fimbrial adhesin, F17 and S fimbrial and Afa-VIII and Intimin afimbrial adhesins may thus represent colonisation factors of avian pathogenic E. coli. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailSystème SDC - Studio Digital Collaboratif
Leclercq, Pierre ULg; Safin, Stéphane ULg; Vandamme, Jean-François et al

Software (2002)

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See detailPhénomènes karstiques fossiles et actuels au sein des formations métamorphiques silico-alumineuses de la nappe pan-africaine de Yaoundé (Sud-Cameroun)
Vicat, Jean-Paul; Mvondoc, Henri; Willems, Luc ULg et al

in Comptes Rendus de l'Académie des Sciences. Série II, Mécanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre (2002), 334

Fossil and present-time karstic phenomena in silico-aluminous metamorphic formations of the Pan-African nappe of Yaoundé (South-Cameroon). Numerous karstic features have been recognised in the non ... [more ▼]

Fossil and present-time karstic phenomena in silico-aluminous metamorphic formations of the Pan-African nappe of Yaoundé (South-Cameroon). Numerous karstic features have been recognised in the non-carbonaceous micaschists and gneisses of the Yaoundé Pan-African nappe, south of Cameroon. It is shown that their formation was controlled by the structural features of the rocks. The wells and the pipes in the bedrock outcrops point out a current karstification process, resulting from the plagioclase dissolution by the acid rain waters. Hill wall alveoli and caves, of pre-Miocene age, are exhumed features that were done by dissolution in the aquiferous underground. [less ▲]

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See detailQuelques considérations techniques sur la construction, les transformations et l'état matériel de la tour valenciennoise, à Mons
Houbart, Claudine ULg

in Mémoires et Publications de la Société des Sciences, des Arts et des Lettres du Hainaut (2002), CI

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See detailLe traitement de la phraséologie dans DEFI
Michiels, Archibal ULg

in Linguistica Antverpiensia (2002)

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See detailLa preuve du contrat conclu par voie électronique – clap 2ème
Lecocq, Pascale ULg; Vanbrabant, Bernard ULg

in Actualités du Droit (2002), 3

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See detailTechniques de culture de cellules et de tissus
De Pauw-Gillet, Marie-Claire ULg

Learning material (2002)

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See detailLes lectures obligatoires en 5e année de l'enseignement secondaire de transition en Communauté française de Belgique
Lafontaine, Dominique ULg

in Enjeux : Revue de Formation Continuée et de Didactique du Français (2002), 55

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See detailHydro-mechanical behavior of fractures: 2D, F.E.M. modeling
Guiducci, Chiara; Pellegrino, Antonio; Radu, Jean-Pol ULg et al

in Auriault, J. L.; Geindreau, C.; Royer, P. (Eds.) Poromechanics II (2002)

A numerical approach for modeling the coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures and consequently the evolution of their hydraulic conductivity ... [more ▼]

A numerical approach for modeling the coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures and consequently the evolution of their hydraulic conductivity is an important subject in many petroleum related activities, mainly concerning the change of well productivity during the reservoir life. It is well known that the flow in the fractures is strongly controlled by the fracture apertures. Recent investigations on the distribution of the apertures in natural fractures suggest that the cubic law can, better than the Darcy law, predict the fluid flux through rough walled fractures as long as the appropriate average fracture aperture is used. A finite element code is developed to predict the influence that the stresses variation in the fracture has on the distributed hydraulic conductivity field. The proposed model combines the stochastic cubic law with a non-linear deformation function (hyperbolic) that is suggested to describe the stress-closure/opening curves of the joints and that allows to couple together the hydraulic and the mechanic fracture behavior. The relationships used and the validity of the present model are tested by means of the comparison between experimental data and numerical predictions (Bart 2000) in various bound-ary and loading conditions. Comparisons between the proposed new model and a no coupled one have also been performed. They show that the proposed coupled model allows for a more realistic description of the fracture behavior. [less ▲]

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See detailDual finite element formulations taking eddy currents in lamination stacks into account
Dular, Patrick ULg; Gyselinck, J.; Geuzaine, Christophe ULg et al

in Proceedings of the 5th Brazilian Conference on Electromagnetics, CBMag 2002 (2002)

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See detailLe statut juridique de la grève dans le secteur privé
Clesse, Jacques ULg

in La grève: recours aux tribunaux ou retour à la conciliation sociale (2002)

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See detailUne séquence didactique expérimentale sur les stratégies de communication (vidéogramme)
Doppagne, Véronique ULg; Hertay, Alain; Simons, Germain ULg

Learning material (2002)

Ce vidéogramme présente différentes stratégies de compensation utilisées par des élèves du secondaire confrontés à des problèmes de communication. Parmi ceux-ci, on trouve le mime, la demande d'assistance ... [more ▼]

Ce vidéogramme présente différentes stratégies de compensation utilisées par des élèves du secondaire confrontés à des problèmes de communication. Parmi ceux-ci, on trouve le mime, la demande d'assistance dans la langue étrangère, la circonlocution... La langue ciblée est l'anglais. [less ▲]

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See detailUltrasonographic assessment of the cranial meniscal ligament in the horse.
Busoni, Valeria ULg; Valentini, S.; Snaps, Frédéric ULg

in Proceedings EAVDI Meeting (2002)

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See detailLiquidation des créances et récompenses au titre d'investissements immobiliers
Leleu, Yves-Henri ULg

in Leleu, Yves-Henri; Casman, Hélène; Verbeke, Alain (Eds.) Le droit des régimes matrimoniaux en pratique (2002)

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See detailModeling of Thin Insulating Layers in Dual Magnetodynamic Formulations
Dular, Patrick ULg; Geuzaine, Christophe ULg

in Proceedings of the 10th IEEE Conference on Electromagnetic Field Computation (CEFC'2002) (2002)

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See detailHigh Resolution Photoabsorption Spectroscopy of CH3Br, CH3I and their Isotopomers.
Locht, Robert ULg; Leyh, Bernard ULg; Jochims, H.-W. et al

Book published by Berliner Elektronen Speicherring für Synchrotron Strahlung m.b.H - sur CD-ROM (2002)

Several spectral regions in the Vacuum UV have been recorde under high resolution conditions: i.e. 8.185-8.210 eV (2e->5pa1 Rydberg transition) in CH(D)3Br and 7.300-7.325 eV in CH(D)3I (2e->6pa1 Rydberg ... [more ▼]

Several spectral regions in the Vacuum UV have been recorde under high resolution conditions: i.e. 8.185-8.210 eV (2e->5pa1 Rydberg transition) in CH(D)3Br and 7.300-7.325 eV in CH(D)3I (2e->6pa1 Rydberg transition). These spectra were recorded with 50µeV resolution. Structures separated by 100-150 µeV are observed and are shown to be isotope dependent. [less ▲]

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See detailThe Long Run Performance of Malaysian Initial Public Offerings (IPOs): Value and Growth Effects
Corhay, Albert ULg; Teo, Stanley; Tourani Rad, Alireza

in Managerial Finance (2002), 28(2), 52-64

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