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See detailStatic and Dynamic experimental investigations of a micro-electromechanical cantilever in air and vacuum
Gutschmidt, Stefanie; Rochus, Véronique ULg; Golinval, Jean-Claude ULg

(2009)

The dynamic response of electro-mechanically actuated micro structures is governed by nonlinear effects which directly influence their performance. To date, most work in the field of micro/nano systems is ... [more ▼]

The dynamic response of electro-mechanically actuated micro structures is governed by nonlinear effects which directly influence their performance. To date, most work in the field of micro/nano systems is done experimentally and documented theoretical research consists of nonlinear lumped-mass models as well as continuum mechanics approaches. Existing and codified computational tools for micro-electromechanical systems (MEMS) more and more penetrate the market of designers and fabrication of such devices. The present work is the experimental part of a bench-mark study of a selected microbeam structure investigated with aforementioned analytical and computational techniques and compared to experiments performed with a Polytec MSA400 analyzer. The emphasis of this benchmark study is put on the nonlinear dynamic behavior with respect to qualitative and quantitative explanations of the electro-mechanical actuation and damping mechanisms. [less ▲]

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See detailMetal enolates in polymer science and technology
Lecomte, Philippe ULg; Jérôme, Robert ULg

in Zabicky, Jacob (Ed.) The Chemistry of Metal Enolates (2009)

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See detailThe Surface Ocean CO2 Atlas (SOCAT) - Coastal Regional group
Borges, Alberto ULg; Chen, A. T. C.; The SOCAT Regional group

Poster (2009)

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See detailSpecies Differences in the Relative Densities of D1- and D2-Like Dopamine Receptor Subtypes in the Japanese Quail and Rats: An in vitro Quantitative Receptor Autoradiography Study.
Kleitz, H. K.; Cornil, Charlotte ULg; Balthazart, Jacques ULg et al

in Brain, Behavior & Evolution (2009), 73(2), 81-90

Evidence has accumulated that the regulation of male sexual behavior by dopamine might not be the same in Japanese quail (and perhaps all birds) as it is in mammals. For example, the non-selective ... [more ▼]

Evidence has accumulated that the regulation of male sexual behavior by dopamine might not be the same in Japanese quail (and perhaps all birds) as it is in mammals. For example, the non-selective dopamine receptor agonist, apomorphine (APO), facilitates male sexual behavior in rats but inhibits it in quail. Although the general organization of the dopamine system is similar in birds and mammals, it is possible that the relative distribution and/or density of binding sites are different. We therefore compared the relative densities of D1-like and D2-like receptor subtypes in Japanese quail and rats, with the use of in vitro quantitative receptor autoradiography. Brain sections from 8 male rats and 8 male quail were labeled with [(3)H]SCH-23390 and [(3)H]Spiperone. In general we found a systematic species difference in the relative density of D1- vs. D2-like receptors such that the D2/D1 ratio is higher in quail than in rats in areas, known to be important target sites for dopamine action such as striatal regions or the preoptic area, which is also associated with activation of sexual behavior. This difference might explain the variation in the behavioral effectiveness of APO in rats as compared to quail; with a higher relative density of D2-like receptors in quail, a similar dose of APO would be more likely to activate inhibitory processes in quail than in rats. [less ▲]

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See detailRiemannian Metric and Geometric Mean for Positive Semidefinite Matrices of Fixed Rank
Bonnabel, Silvère; Sepulchre, Rodolphe ULg

in SIAM Journal on Matrix Analysis & Applications (2009), 31(3), 1055--1070

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See detailGenetic variation in the familial Mediterranean fever gene (MEFV) and risk for Crohn's disease and ulcerative colitis.
Villani, Alexandra-Chloé; Lemire, Mathieu; Louis, Edouard ULg et al

in PLoS ONE (2009), 4(9), 7154

BACKGROUND AND AIMS: The familial Mediterranean fever (FMF) gene (MEFV) encodes pyrin, a major regulator of the inflammasome platform controlling caspase-1 activation and IL-1beta processing. Pyrin has ... [more ▼]

BACKGROUND AND AIMS: The familial Mediterranean fever (FMF) gene (MEFV) encodes pyrin, a major regulator of the inflammasome platform controlling caspase-1 activation and IL-1beta processing. Pyrin has been shown to interact with the gene product of NLRP3, NALP3/cryopyrin, also an important active member of the inflammasome. The NLRP3 region was recently reported to be associated with Crohn's disease (CD) susceptibility. We therefore sought to evaluate MEFV as an inflammatory bowel disease (IBD) susceptibility gene. METHODOLOGY AND RESULTS: MEFV colonic mucosal gene expression was significantly increased in experimental colitis mice models (TNBS p<0.0003; DSS p<0.006), in biopsies from CD (p<0.02) and severe ulcerative colitis (UC) patients (p<0.008). Comprehensive genetic screening of the MEFV region in the Belgian exploratory sample set (440 CD trios, 137 UC trios, 239 CD cases, 96 UC cases, and 107 healthy controls) identified SNPs located in the MEFV 5' haplotype block that were significantly associated with UC (rs224217; p = 0.003; A allele frequency: 56% cases, 45% controls), while no CD associations were observed. Sequencing and subsequent genotyping of variants located in this associated haplotype block identified three synonymous variants (D102D/rs224225, G138G/rs224224, A165A/rs224223) and one non-synonymous variant (R202Q/rs224222) located in MEFV exon 2 that were significantly associated with UC (rs224222: p = 0.0005; A allele frequency: 32% in cases, 23% in controls). No consistent associations were observed in additional Canadian (256 CD trios, 91 UC trios) and Scottish (495 UC, 370 controls) sample sets. We note that rs224222 showed marginal association (p = 0.012; G allele frequency: 82% in cases, 70% in controls) in the Canadian sample, but with a different risk allele. None of the NLRP3 common variants were associated with UC in the Belgian-Canadian UC samples and no significant interactions were observed between NLRP3 and MEFV that could explain the observed flip-flop of the rs224222 risk allele. CONCLUSION: The differences in association levels observed between the sample sets may be a consequence of distinct founder effects or of the relative small sample size of the cohorts evaluated in this study. However, the results suggest that common variants in the MEFV region do not contribute to CD and UC susceptibility. [less ▲]

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See detailDroit international et européen des sociétés
Thirion, Nicolas ULg; Gol, Déborah ULg; Pasteger, David ULg et al

Book published by Larcier (2009)

La multiplication et l’internationalisation des transactions commerciales impliquent une plus grande mobilité des entreprises. Filialisations, délocalisations, création de succursales et d’agences, etc ... [more ▼]

La multiplication et l’internationalisation des transactions commerciales impliquent une plus grande mobilité des entreprises. Filialisations, délocalisations, création de succursales et d’agences, etc., tel est désormais le lot commun de la vie économique. Parallèlement aux migrations des personnes physiques, les déplacements de personnes morales suscitent, eux aussi, un vaste travail de réglementation, non plus seulement au niveau des structures étatiques, mais aussi sur un plan international, voire supranational. C’est cette question de la régulation des sociétés dans l’espace transnational qui constitue l’objet du présent ouvrage. Une première partie de l’ouvrage consiste à identifier les premières dispositions adoptées pour tenir compte de ce phénomène économique, à travers l’étude du droit international, aussi bien privé que public. Une seconde partie examine l’ensemble des règles adoptées au plan de la Communauté européenne dans le même domaine. Les auteurs s’attèlent à décomposer cet ensemble selon la source des dispositions en cause : droit primaire, droit dérivé, jurisprudence de la Cour de justice. Cet ouvrage est l'un des rares en langue française à présenter un panorama significatif des normes applicables à la question de la circulation des sociétés au-delà de leurs frontières d’origine et des problèmes qui en résultent. [less ▲]

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See detailAdaptive Regulation of Vector Controlled Induction Motors
Jadot, Fabrice; Malrait, Francois; Moreno, Javier et al

in IEEE Transactions on Control Systems Technology (2009), 17(3),

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See detailSynchronization in Networks of Identical Linear Systems
Scardovi, Luca; Sepulchre, Rodolphe ULg

in Automatica (2009), 45(11), 2557-2562

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See detailLa plume du personnel scientifique. Un agenda de la recherche actuelle - Présentation du numéro
Cornet, Adeline ULg; Reuchamps, Min ULg; Van Aken, Nicolas ULg

in Revue de la Faculté de Droit de l'Université de Liège (2009), 54(4), 455-461

Cette présentation introduit le numéro spécial de la Revue de la Faculté de droit de l’Université de Liège qui réunit, comme son titre l’indique, un ensemble de contributions du « personnel scientifique » ... [more ▼]

Cette présentation introduit le numéro spécial de la Revue de la Faculté de droit de l’Université de Liège qui réunit, comme son titre l’indique, un ensemble de contributions du « personnel scientifique » de la Faculté de Droit et de Science politique – École liégeoise de Criminologie Jean Constant. Sommaire du numéro : Adeline CORNET, Min REUCHAMPS et Nicolas VAN AKEN, La plume du personnel scientifique ? Un agenda de la recherche actuelle Sophie WINTGENS, La politique internationale du Pakistan, un enjeu interne? Nicolas VAN AKEN, Les relations tumultueuses entre l'Emission Trading Scheme et le principe communautaire d'égalité: mariage forcé ou divorce à l'amiable? Vincent SERON, Casier judiciaire et délinquance sexuelle: quelques considérations autour d'un diptyque mémoire-oubli Arianne SALVE, La copropriété d'immeubles ou de groupe d'immeubles bâtis: un tour d'horizon de la réforme Min REUCHAMPS, Le fédéralisme et ses deux sens - négatifs - en Belgique francophone Grégory PIET, Retour en visibilité religions/religieux: analyse de leurs causes et conséquences européennes Geoffroy MATAGNE, Du conflit «révolutionnaire» au conflit «institutionnalisé»: étude des revendications centrifuges en Belgique Evelyne LANGENAKEN, La responsabilité du psychiatre - Piste de réflexion à l'issue du procès de Geneviève Lhermitte Geoffrey GRANDJEAN, Quelques réflexions sur les enjeux mémoriels autour de la répression du négationnisme en Belgique Corinne GERIN, Ambiguïté du stage parental ou chronique d'une mort annoncée Laurent FRANKIGNOUL, La crise bancaire de 2008, de Cleveland à Bruxelles Bertrand FINCOEUR, Jusqu'où va-t-on au nom de l'éthique? - La lutte antidopage dans le cyclisme sur route Teresa ELOLA CALDERON, Quels changements institutionnels le Traité de Lisbonne apporte-t-il à la Politique agricole commune (PAC) Alexandre DEFOSSEZ, L'effet direct horizontal des libertés communautaires et la liberté syndicale Adeline CORNET, Existe-t-il un modèle sexué dans les professions juridiques ? Analyse micro- et macrosociale du barreau et de la magistrature Charlotte BRAILLON, La théorie classique de la coutume et le rôle nouveau de l'opinio juris: Discours de la justice en droit international et en droit interne Adeline CORNET, Min REUCHAMPS et Nicolas VAN AKEN, La plume du personnel scientifique. Un agenda de la recherche actuelle - Epilogue: un numéro spécial et plus que cela [less ▲]

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See detailBody dermatitis in a donkey caused by the Psoroptes ovis
Mignon, Bernard ULg; Lekimme, Mireille ULg; Huynen, K. et al

Conference (2009)

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See detailMusique et musiciens de Georges d’Autriche à Ferdinand de Bavière
Corswarem, Emilie ULg

in Bruyère, Paul, Marchandisse, Alain (Ed.) Le florilège du livre en principauté de Liège (2009)

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See detailA modular approach to quality of life assessment in paediatric oncology
Fonseca, Marta; Missotten, Pierre ULg; Etienne, Anne-Marie ULg et al

in Psychology & Health (2009), 24(Supp 1), 175

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See detailLes techniques de biologie moléculaire d'analyse des populations bactériennes complexes
Huybens, Nathalie ULg; Mainil, Jacques ULg; Marlier, Didier ULg

in Annales de Médecine Vétérinaire (2009), 153(2), 112-128

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See detailAgreement between two independent groups of raters
Vanbelle, Sophie ULg; Albert, Adelin ULg

in Psychometrika (2009), 74

We propose a coefficient of agreement to assess the degree of concordance between two independent groups of raters classifying items on a nominal scale. This coefficient, defined on a population-based ... [more ▼]

We propose a coefficient of agreement to assess the degree of concordance between two independent groups of raters classifying items on a nominal scale. This coefficient, defined on a population-based model, extends the classical Cohen's kappa coefficient for quantifying agreement between two raters. Weighted and intraclass versions of the coefficient are also given and their sampling variance is determined by the Jackknife method. The method is illustrated on medical education data which motivated the research. [less ▲]

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See detailLiens, ruptures et parcours possibles de réconciliation entre recherche et clinique avec la famille selon une approche systémique
D'Amore, Salvatore ULg; Haxhe, Stéphanie ULg

in Thérapie Familiale (2009), 30(2), 195-210

Clinical research with the family has undergone relevant changes through time under an epistemological, theoretical, methodological and technical point of view. By rebuilding the main steps of such ... [more ▼]

Clinical research with the family has undergone relevant changes through time under an epistemological, theoretical, methodological and technical point of view. By rebuilding the main steps of such development, we will try to bring to the fore issues and problems that are at the centre of the present debate (researches untied from the theoretical model, mix-ups in logics between built-ups and levels of analysis, risks of over-interpretation on the basis of individual parameters) and the solutions put forward by those models that try and come back to a holistic vision of the family as research « object-subject ». Finally, we’ll propose research paths able to combine a complex». Finally, we’ll propose research paths able to combine a complex. Finally, we’ll propose research paths able to combine a complex vision with empirically validated models, observation methods with self-observation methods. [less ▲]

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See detailFactors Affecting Plasma Pregnancy-associated Glycoprotein 1 Concentrations Throughout Gestation in High-producing Dairy Cows.
Serrano, B.; Lopez-Gatius, F.; Santolaria, P. et al

in Reproduction in Domestic Animals (2009), 44(4), 600-605

This study was designed to establish the factors, if any, which could affect plasma pregnancy-associated glycoprotein-1 (PAG-1) expression in a study population of 87 pregnant, high-producing dairy cows ... [more ▼]

This study was designed to establish the factors, if any, which could affect plasma pregnancy-associated glycoprotein-1 (PAG-1) expression in a study population of 87 pregnant, high-producing dairy cows. The factors examined were: semen providing breed (Holstein-Friesian vs Limousin), outcome of gestation (male vs female newborn, and singleton vs twin pregnancies), lactation number, milk production at pregnancy diagnosis, plasma progesterone concentration, season of gestation (warm period, March-November vs cool period, December-February), and day of gestation (40, 90, 120, 150, 180 and 210). Pregnancy was diagnosed by transrectal ultrasound on day 40 post-insemination and by palpation per rectum on days 90, 120, 150, 180 and 210. Blood samples were collected from each animal immediately before each pregnancy diagnosis. The relative contributions of the different factors on PAG-1 concentrations were evaluated by GLM repeated measures analysis of variance. No significant effects of the herd, foetal sex, milk production, lactation number and plasma progesterone concentrations were observed. In contrast, twin pregnancy, the use of Limousin semen and conception during the cool period were correlated with significantly increased plasma PAG-1 concentrations throughout gestation. Our data indicate that both cow well-being during early placental development, determined in our conditions by reduced heat stress when conception occurred in the cool season, and crossbreed pregnancies lead to improved PAG-1 production throughout the gestation period. [less ▲]

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