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See detailCu doping as a tool for understanding CMR
Vertruyen, Bénédicte ULg; Cloots, Rudi ULg; Rulmont, André ULg et al

in Key Engineering Materials [=KEM] (2002), 206-2

Doping at the Mn-site in CMR manganate-based perovskites has been shown to affect strongly the physical properties of those compounds. We study here the effect of copper substitution in the low doping ... [more ▼]

Doping at the Mn-site in CMR manganate-based perovskites has been shown to affect strongly the physical properties of those compounds. We study here the effect of copper substitution in the low doping range on the electrical transport properties of La0.7Ca0.3MnO3. It turns out that the transition temperature decrease observed in doped samples can be drastically reduced by addition of silicon dioxide SiO2. It is shown that copper is trapped in a secondary phase composed of La,Ca,Si,Cu and O. The resultant Mn-site vacancies appear to be less detrimental to the electronic conduction than the likely antiferromagnetic clusters induced by the copper ions in the Mn-O network. [less ▲]

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See detailLe développement durable : comprendre pour agir, Dossier pour l’enseignement secondaire supérieur
Merenne-Schoumaker, Bernadette ULg; Brück, Laurent

Book published by SSTC (2002)

Un dossier en quatre parties : une introduction générale et trois dossiers thématiques : l'urbanisation, les transports, les modes de production et de consommation. Dossier conçu pour des élèves de 15 à ... [more ▼]

Un dossier en quatre parties : une introduction générale et trois dossiers thématiques : l'urbanisation, les transports, les modes de production et de consommation. Dossier conçu pour des élèves de 15 à 18 ans [less ▲]

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See detailInsecticide resistance enhances male reproductive success in a beetle
Arnaud, Ludovic; Haubruge, Eric ULg

in Evolution (2002), 56(12), 2435-2444

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See detailIconographies de saints mosans : Liège, ULG Wittert 82
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (2002)

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See detailMorphology, displacement and slip rates along the North Antolian Fault (Turkey)
Hubert, Aurelia ULg; Armijo, R.; Meyer, B. et al

in Journal of Geophysical Research (2002), 107(10.1029/2001JB000393),

Geological and geomorphological offsets at different scales are used to constrain the localization of deformation, total displacement, and slip rates over various timescales along the central and eastern ... [more ▼]

Geological and geomorphological offsets at different scales are used to constrain the localization of deformation, total displacement, and slip rates over various timescales along the central and eastern North Anatolian Fault (NAF) in Turkey. The NAF total displacement is reevaluated using large rivers valleys (80 ± 15 km) and structural markers (Pontide Suture, 85 ± 25 km; Tosya-Vezirko ̈pru ̈ basins, 80 ± 10 km). These suggest a Neogene slip rate of 6.5 mm/yr over 13 Myr. The river network morphology shows offsets at a range of scales (20 m to 14 km) across the main fault trace and is also used to estimate the degree to which deformation is localized. At a smaller scale the morphology associated with small rivers is offset by 200 m along the NAF. The age of these features can be correlated with the Holocene deglaciation and a slip rate of 18 ± 3.5 mm/yr is determined. This is consistent with a rate of 18 ± 5 mm/yr deduced independently from the 14C dating of stream terrace offsets. Over the short term, GPS data gives a similar rate of 22 ± 3 mm/yr. All our results tend to show that most of the deformation between the Anatolian and Eurasian lithospheric plates has been accommodated along, or very close to, the active trace of the NAF. The difference between the Neogene and the Holocene slip rate may be due to the recent establishment of the current plate geometry after the creation of the NAF. INDEX TERMS: 8107 Tectonophysics: Continental neotectonics; 8158 Tectonophysics: Plate motions—present and recent (3040); 7230 Seismology: Seismicity and seismotectonics; KEYWORDS: North Anatolian Fault, slip rate, total offset, strain localization [less ▲]

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See detailSternal recumbency or suspension by the hind legs immediately after delivery improves respiratory and metabolic adaptation to extra uterine life in newborn calves delivered by caesarean section.
Uystepruyst, Christophe; Coghe, Joost; Dorts, Thierry et al

in Veterinary Research (2002), 33(6), 709-724

The aim of this study was to evaluate the effect of body positioning immediately after delivery on respiratory and metabolic adaptation to extra-uterine life in newborn calves. One hundred and one Belgian ... [more ▼]

The aim of this study was to evaluate the effect of body positioning immediately after delivery on respiratory and metabolic adaptation to extra-uterine life in newborn calves. One hundred and one Belgian White and Blue calves were delivered at term by an elective caesarean section and were assigned into three categories according to the body position imposed immediately after umbilical cord rupture: 71 calves were placed in lateral recumbency; 16 calves were placed in sternal recumbency and 14 calves were suspended by the hind legs for less than 90 seconds (75 +/- 5 s). Following this initial body position, the calves were allowed to move without restraint. They were examined at birth, 5, 15, 30, 45 and 60 minutes, and 2, 3, 6, 12 and 24 hours after birth by the following measurements: physical examination, heart rate, arterial blood gas analysis, pulmonary function tests using the esophageal balloon catheter technique, arterial and venous blood acid-base balance analysis, rectal temperature, jugular venous blood sampling for the determination of blood glucose, plasma lactate and serum cortisol concentrations, haematologic variables and passive immune transfer variables. Body positioning immediately after delivery clearly influenced respiratory and metabolic adaptation to extra-uterine life in term calves delivered by an elective caesarean section. Systematic sternal recumbency and suspension by the hind legs for less than 90 seconds immediately after umbilical cord rupture had a positive functional impact on postnatal pulmonary mechanics and gas exchange and on postnatal correction of mixed acidosis present at birth, contributing in turn to an enhanced passive immune transfer. These two body positions should be encouraged to improve adaptation at birth in healthy term calves delivered by an elective caesarean section. Evaluation of possible side-effects is required before application in severely asphyxiated calves. [less ▲]

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See detailSur le nom wallon et français du schiste houiller altéré: une hypothèse déonomastique
Boutier, Marie-Guy ULg

in Bulletin de la Commission Royale de Toponymie et de Dialectologie = Handelingen van de Koninklijke Commissie voor Toponymie en Dialectologie (2002), 74

La première partie de l'article examine les formes et les sens du mot wallon tèroûle et de son correspondant français téroulle avec l'objectif de poser le problème étymologique sous une forme simple et ... [more ▼]

La première partie de l'article examine les formes et les sens du mot wallon tèroûle et de son correspondant français téroulle avec l'objectif de poser le problème étymologique sous une forme simple et exacte; une grande attention est portée aux choses désignées par les mots. La seconde partie envisage pour l'origine du mot une hypothèse déonomastique: il proviendrait du nom de lieu Tharoul (comm. de Vyle-et-Tharoul, Belgique, arrondissement de Huy). [less ▲]

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See detailMurine 5T multiple myeloma cells induce angiogenesis in vitro and in vivo
Van Valckenborgh, E.; De Raeve, H.; Devy, L. et al

in British Journal of Cancer (2002), 86(5), 796-802

Multiple myeloma is a B cell malignancy. Recently, it has been demonstrated that bone marrow samples of patients with multiple myeloma display an enhanced angiogenesis. The mechanisms involved seem to be ... [more ▼]

Multiple myeloma is a B cell malignancy. Recently, it has been demonstrated that bone marrow samples of patients with multiple myeloma display an enhanced angiogenesis. The mechanisms involved seem to be multiple and complex. We here demonstrate that the murine 5T multiple myeloma models are able to induce angiogenesis in vitro by using a rat aortic ring assay and in vivo by determining the microvessel density. The rat aortic rings cultured in 5T multiple myeloma conditioned medium exhibit a higher number of longer and more branched microvessels than the rings cultured in control medium. In bone marrow samples from 5T multiple myeloma diseased mice, a statistically significant increase of the microvessel density was observed when compared to bone marrow samples from age-matched controls. The angiogenic phenotype of both 5T multiple myeloma cells could be related, at least in part, to their capacity to produce vascular endothelial growth factor. These data clearly demonstrate that the 5T multiple myeloma models are good models to study angiogenesis in multiple myeloma and will allow to unravel the mechanisms of neovascularisation, as well as to test new putative inhibitors of angiogenesis. [less ▲]

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See detailBlood oxygen binding in hypoxaemic calves
Cambier, Carole ULg; Clerbaux; Detry, Bruno et al

in Veterinary Research (2002), 33(3), 283-290

Blood oxygen transport and tissue oxygenation were studied in 28 calves from the Belgian White and Blue breed (20 healthy and 8 hypoxaemic ones). Hypoxaemic calves were selected according to their high ... [more ▼]

Blood oxygen transport and tissue oxygenation were studied in 28 calves from the Belgian White and Blue breed (20 healthy and 8 hypoxaemic ones). Hypoxaemic calves were selected according to their high respiratory frequency and to their low partial oxygen pressure (PaO2) in the arterial blood. Venous and arterial blood samples were collected, and 2,3-diphosphoglycerate, adenosine triphosphate, chloride, inorganic phosphate and hemoglobin concentrations, and pH, PCO, and PO2 were determined. An oxygen equilibrium curve (OEC) was measured in standard conditions, for each animal. The arterial and venous OEC were calculated, taking body temperature, pH and PCO2 values in arterial and venous blood into account. The oxygen exchange fraction (OEF%), corresponding to the degree of blood desaturation between the arterial and the venous compartments, and the amount of oxygen released at the tissue level by 100 mL of blood (OEF Vol%) were calculated from the arterial and venous OEC combined with the PO2 and hemoglobin concentration. In hypoxaemic calves investigated in this study, the hemoglobin oxygen affinity, measured under standard conditions, was not modified. On the contrary, in vivo acidosis and hypercapnia induced a decrease in the hemoglobin oxygen affinity in arterial blood, which combined to the decrease in PaO2 led to a reduced hemoglobin saturation degree in the arterial compartment. However, this did not impair the oxygen exchange fraction (OEF%), since the hemoglobin saturation degree in venous blood was also diminished. [less ▲]

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See detailHeat shock proteins. I : Classification and roles in pathological processes
Wirth, Delphine; Gustin, Pascal ULg; Drion, Pierre ULg et al

in Annales de Médecine Vétérinaire (2002), 146(4), 201-216

All living systems have evolved mechanisms to maintain homeostasis in the face of rapid environmental changes. When exposed to elevated temperatures, most of the cells activate the synthesis of a specific ... [more ▼]

All living systems have evolved mechanisms to maintain homeostasis in the face of rapid environmental changes. When exposed to elevated temperatures, most of the cells activate the synthesis of a specific group of proteins called Heat Shock Proteins (Hsps). This heat shock response, under control of specific transcription factors, the Heat Shock factors (HSF), is an evolutionarily conserved mechanism, from bacteria to humans. Heat Shock Proteins are classified into families according to their molecular weight (Hsp 25, 40, 70, 90, 105). They play the role of molecular chaperones by binding and protecting other molecules (proteins, RNAs). The function of Hsp is to prevent accumulation of non-native proteins either by assisting proper folding of polypeptides or by driving them to proteosome pathway for degradation. Hsps are involved in various pathological processes that are accompanied by protein alterations such as chronic or degenerative diseases. This review describes structural and functional characteristics of the six main Hsps classes. It also focuses on their respective role in highly studied pathologies. The diversity of Hsps implications in these diseases explains that they became recently a strategic target in development of new therapeutic strategies. [less ▲]

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See detailMéthode basée sur des cas et enseignement à distance visant le transfert des apprentissages : un exemple d'application
Leclercq, Dieudonné ULg; Georges, François ULg; Poumay, Marianne ULg

in Les méthodes actives dans l'enseignement supérieur. Regards pluriels et critiques sur les pratiques. (2002)

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See detailL'accompagnement du portage de cours en ligne comme facilitateur d'un déploiement de méthodes actives dans l'enseignement supérieur
Poumay, Marianne ULg; Dupont, Chantal ULg; Georges, François ULg et al

in Les méthodes actives dans l'enseignement supérieur. Regards pluriels et critiques sur les pratiques. (2002)

Le LabSET accompagne une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies actives ... [more ▼]

Le LabSET accompagne une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies actives, nous prônons l'idée que l'EAD n'est qu'un vecteur, un support dont on peut faire le pire comme le meilleur. L'une de nos actions, FORMADIS , assure l'accompagnement de 13 projets d'EAD (projets sélectionnés en 2001 par appel à propositions) par un minimum de 2 chercheurs, du personnel technique et l'apport d'un graphiste. La formation pédagogique se déroule en partie en ligne et en partie en présentiel de façon à correspondre et donc à servir directement aux différentes étapes d'élaboration d'un cours à distance, selon les principes d'isomorphisme et d'accent systématique sur le transfert. Cet accompagnement nous semble un moyen efficace de participer à la formation continuée des enseignants. Des démonstrations à mi-parcours ont montré la diversité des méthodologies mises en oeuvre dans ces cours et la valeur ajoutée due à l'EAD. Plus de 40 activités sont passées au crible du modèle des 7 paradigmes d'enseignement / apprentissage. Un nouvel appel à propositions d'accompagnements de projets d'EAD est lancé par le LabSET en 2002. [less ▲]

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See detailDrugs and crime deviant pathways
Born, Michel ULg; Gavray, Claire ULg

in Brochu, S.; Da Agra, C.; Cousineau, M. (Eds.) Deviant trajectories at the turning point between adolescence and adulthood (2002)

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See detailExamen critique de l'étymologie de brasser
Boutier, Marie-Guy ULg

in Dialectes de Wallonie (2002), 29-30

La filiation traditionnellement établie entre gaulois brace "matière servant à préparer la bière" (dont provient fr. brais) et fr. brasser "préparer la bière" est réexaminée dans cet article par l'examen ... [more ▼]

La filiation traditionnellement établie entre gaulois brace "matière servant à préparer la bière" (dont provient fr. brais) et fr. brasser "préparer la bière" est réexaminée dans cet article par l'examen de l'ensemble du vocabulaire technologique wallon de la brasserie et des réalités concrètes qui sont désignées: la préparation du brais, d'une part; le brassage de la bière, d'autre part. [less ▲]

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See detailComptines de dentellières brugeoises (1730-1850): entre travail, école et jeu, colère et prière
Peere, Isabelle ULg

in Barna, Gabor, Kriza, Ildiko (Ed.) Folk Ballads, Ethics, Moral Issues (2002)

An investigation of the song corpus of Lootens and Feys's Chants populaires flamands, a published collection of Flemish popular songs transcribed from the lips of a middle-class lady born in Bruges in ... [more ▼]

An investigation of the song corpus of Lootens and Feys's Chants populaires flamands, a published collection of Flemish popular songs transcribed from the lips of a middle-class lady born in Bruges in 1795. [less ▲]

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See detailNotes d'onomastique indo-iranienne ancienne
Swennen, Philippe ULg

in Questions et Connaissances (Actes du IVe congrès européen des études iraniennes organisé par la Societas Iranologica Europaea, Paris, 6-10 septembre 1999), Vol. I: La Période Ancienne. Tetxes réunis par Philip Huyse (2002)

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See detailThe use of blood pepsinogen as a biomarker of the integrity of the porcine gastric mucosa : A review. Part 1: History, physiopathology of gastric mucosa and different forms of pepsinogens
Banga-Mboko, Henri; Godeau, Jean-Marie ULg; Drion, Pierre ULg et al

in Annales de Médecine Vétérinaire (2002), 146(6), 339-346

Because the history is defined as the account of the passed events, this manuscript is an Update research on swine pepsinogens since their discovery by Theodor Schwann. Progress was particularly made in ... [more ▼]

Because the history is defined as the account of the passed events, this manuscript is an Update research on swine pepsinogens since their discovery by Theodor Schwann. Progress was particularly made in the localization within the gastric mucosa membrane of the specialized cells involved in the secretion of pepsinogens. These progresses also included identification, isolation purification and the classification of the zymogens. [less ▲]

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See detailErratum to: “Perturbative evolution and Regge behaviour”: [Phys. Lett. B 448 (1999) 281]
Cudell, Jean-René ULg; Donnachie, A.; Landshoff, P.

in Physics Letters B (2002), 528

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