References of "2012"
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See detailNumerical and physical hydraulic modelling of Piano Key Weirs
Erpicum, Sébastien ULg; Machiels, Olivier ULg; Dewals, Benjamin ULg et al

in Proceedings of the 4th Int. Conf. on Water Resources and Renewable Energy Development in Asia (2012, March)

During the last few years, several piano key weirs (PKWs) have been built in France by Electricité de France (EDF). Thanks to the reduced footprint and high release capacities of this new type of weir ... [more ▼]

During the last few years, several piano key weirs (PKWs) have been built in France by Electricité de France (EDF). Thanks to the reduced footprint and high release capacities of this new type of weir, making it particularly suited for concrete dams rehabilitation, lots of other projects in varied countries are under construction or study. The prototype use of PKW requires knowledge about its structural behaviour, hydraulic capacities as well as integration into dams’ environment. This paper aims at presenting numerical and physical modelling works performed at the University of Liege to address the last two points. In particular, large scale physical modelling and parametric scale models enabled to understand the hydraulic behaviour of the structure and to highlight its main geometric parameters as well as their best variation interval depending on various criteria related to the weir design (discharge efficiency, cost…). A 1D numerical model has also been developed based on these experimental investigations. It enables to predict in a few minutes, with 10% accuracy, the discharge capacity of a given PKW geometry on its usual operation head range. This model, available as a freeware on http://www.pk-weirs.ulg.ac.be, constitutes a key tool for the first design of such weirs. Finally, the scale model studies of major projects such as Raviège dam (France) for EDF and Ouldjet Mellegue Project (Algeria) for Coyne et Bellier – Tractebel Engineering enable to confront theoretical predictions with experimental results and to address the problem of PKW integration on dam crests. [less ▲]

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See detailPilot Trial of STAR in Medical ICU
Fisk, Liam M.; Le Compte, Aaron J.; Shaw, Geoffrey M. et al

Poster (2012, March)

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See detailFreedom, Memory, and Identity: The Paradoxical Individual/Collective Dialectic in Steve Darnall and Alex Ross’s Graphic Novel 'Uncle Sam'
Dony, Christophe ULg

Conference (2012, March)

As his star-spangled costume and his usually firm posturing suggest, Uncle Sam impersonates the United States and symbolically reflects the nation’s most cherished values and ideals such as freedom ... [more ▼]

As his star-spangled costume and his usually firm posturing suggest, Uncle Sam impersonates the United States and symbolically reflects the nation’s most cherished values and ideals such as freedom, exceptionalism, and (masculine) strength. As such, he connects the projects of nationalism and patriotism with the scale of the individual. In other words, he embodies the American motto ‘out of many, one.’ Steve Darnall and Alex Ross’s rewriting of the character, however, strongly contrast with this dominant perception of Uncle Sam in their eponymous 1997 graphic novel. Their narrative shows a distressed and lunatic homeless man wandering the streets of an unknown American city. As he roams the streets, he undergoes an identity crisis that coincides with a crisis of memory, both of which complicate the relation between the symbolic individual body and the collective American unconscious. On the one hand, the character represents the values of freedom and democracy that the US government has strived to implement. On the other, he realizes that the paradigm of the nation cannot be understood as a monolithic entity, and that the plurality of voices that inhabit his persona – and, quite paradoxically, the country – cannot uphold this meta-narrative of American unity. In asking whether or not Uncle Sam is one of U.S., Darnall and Ross comment on the paradoxes of freedom and the myth of the melting pot. [less ▲]

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See detailDeterminants of sickness absence duration after an occupational back injury in the Belgian population
Mazina, Déogratias; Donneau, Anne-Françoise ULg; Mairiaux, Philippe ULg

in American Journal of Industrial Medicine (2012), 55(3), 270-280

Background This study aimed at assessing factors associated to the duration of sickness absence after a back injury in the Belgian working population, with a special emphasis on cultural factors. Methods ... [more ▼]

Background This study aimed at assessing factors associated to the duration of sickness absence after a back injury in the Belgian working population, with a special emphasis on cultural factors. Methods The data were retrieved from the Belgian Fund for Work Accidents database over a three-year period (2001-2003). The population source involved all Belgian workers under a job contract in the private sector registered as compensated cases for an accident that occurred at the workplace (n=558276). From that database, all back injury cases involving a complete data set and registered during the first 6 months of each year (n= 11262) were selected and eight factors (gender, age, seniority in the current job, job category, accident regional location, enterprise size, sector of activity and accident circumstances) were analyzed in relation to the outcome variable, sick leave duration recorded as ordered time intervals between 0 day and 183-366 days. Results Sick leave duration was strongly associated in a multivariate model to age (>= 40 years: OR=2.18), blue collar job (1.55), work in building industry (1.32) and enterprise size (>100 : 0.85), and to a less extent to seniority (>10y: 0.88), and circumstance of accident (falls: 1.26). Injuries occurring in the French-speaking part of the country were associated to a longer sick leave (1.07; p=0.034). Conclusions This study shows that besides well-known risk factors, subtle cultural language-linked factors and/or regional differences in economic climate may significantly influence the length of disability period after a back injury. [less ▲]

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See detailSpurious oscillations in generalized-alpha time integration methods
Arnold, Martin; Bruls, Olivier ULg; Cardona, Alberto

Conference (2012, March)

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See detailThéâtre et engagement
Pichault, François ULg

Conference (2012, March)

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See detailEvidence of a complex phylogeographic structure in the common dormouse, Muscardinus avellanarius (Rodentia: Gliridae)
Mouton, Alice ULg; Grill, Andrea; Sara, Maurizio et al

in Biological Journal of the Linnean Society (2012), 105(3), 648-664

This is the first mitochondrial phylogeography of the common dormouse, Muscardinus avellanarius (Linnaeus, 1758), a hibernating rodent strictly protected in Europe (Habitat Directive, annex IV; Bern ... [more ▼]

This is the first mitochondrial phylogeography of the common dormouse, Muscardinus avellanarius (Linnaeus, 1758), a hibernating rodent strictly protected in Europe (Habitat Directive, annex IV; Bern Convention, annex III). The 84 individuals of M. avellanarius, sampled throughout the distributional range of the species, have been sequenced at the mitochondrial DNA gene (cytochrome b, 704 base pairs). The results revealed two highly divergent lineages, with an ancient separation around 7.7 Mya and a genetic divergence of 7.7%. Lineage 1 occurs in Western Europe (France, Belgium, and Switzerland) and Italy, and lineage 2 occurs in Central–Northern Europe (Poland, Germany, Latvia, and Lithuania), on the Balkan Peninsula, and in Turkey. Furthermore, these two lineages are subdivided into five sublineages genetically isolated with a strong geographical association. Therefore, lineage 1 branches into two further sublineages (Western European and Italian), whereas lineage 2 contained three sublineages (Central–Northern European, Turkish, and Balkan). We observed low genetic diversity within the sublineages, in contrast to the significant level of genetic differentiation between them. The understanding of genetic population structure is essential for identifying units to be conserved. Therefore, these results may have important implications for M. avellanarius conservation. [less ▲]

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See detailMise en œuvre et suivi d’un réseau de mesure transfrontalier de la qualité physico-chimique des cours d’eau du bassin de la Haute-Sûre Belgo Luxembourgeoise: Rapport final.
Nonet, Stéphane; Everbecq, Etienne ULg; Grard, Aline ULg et al

Report (2012)

Suite à un appel d’offre lancé par le contrat de rivière « Haute-Sûre », dans le cadre de l’initiative communautaire INTERREG IV Grande Région et du projet « PACTE Haute-Sûre », le CEBEDEAU a réalisé en ... [more ▼]

Suite à un appel d’offre lancé par le contrat de rivière « Haute-Sûre », dans le cadre de l’initiative communautaire INTERREG IV Grande Région et du projet « PACTE Haute-Sûre », le CEBEDEAU a réalisé en collaboration avec l'Aquapôle la mise en œuvre et le suivi d’un réseau de mesure transfrontalier de la qualité physico-chimique des cours d’eau du bassin de la Haute-Sûre belgo luxembourgeoise. Pour ce faire, la mission a été découpée en 3 grandes phases : 1) choix des points de mesure devant faire partie du réseau, des éléments à analyser ; 2) collecte et analyses des échantillons ; 3) traitement des données : inclusion dans une base de données, évaluation de la qualité des eaux, interprétation des résultats et fourniture d’éléments permettant l’évaluation du risque de non atteinte du bon état [less ▲]

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See detailThe usefulness of Ion Mobility-Mass Spectrometry for Small Molecules Analysis
Far, Johann ULg; Goscinny, Séverine ULg; Joly, Laure et al

Conference (2012, March)

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See detailEstimating stellar mean density through seismic inversions
Reese, Daniel ULg; Marques, J. P.; Goupil, M. J. et al

in Astronomy and Astrophysics (2012), 539(A63), 18

Determining the mass of stars is crucial both for improving stellar evolution theory and for characterising exoplanetary systems. Asteroseismology offers a promising way for estimating the stellar mean ... [more ▼]

Determining the mass of stars is crucial both for improving stellar evolution theory and for characterising exoplanetary systems. Asteroseismology offers a promising way for estimating the stellar mean density. When combined with accurate radii determinations, such as are expected from GAIA, this yields accurate stellar masses. The main difficulty is finding the best way to extract the mean density of a star from a set of observed frequencies. We seek to establish a new method for estimating the stellar mean density, which combines the simplicity of a scaling law while providing the accuracy of an inversion technique. We provide a framework in which to construct and evaluate kernel-based linear inversions that directly yield the mean density of a star. We then describe three different inversion techniques (SOLA and two scaling laws) and apply them to the Sun, several test cases and three stars, alpha Cen B, HD 49933 and HD 49385, two of which are observed by CoRoT. The SOLA (subtractive optimally localised averages) approach and the scaling law based on the surface correcting technique described by Kjeldsen et al. (2008, ApJ, 683, L175) yield comparable results that can reach an accuracy of 0.5 % and are better than scaling the large frequency separation. The reason for this is that the averaging kernels from the two first methods are comparable in quality and are better than what is obtained with the large frequency separation. It is also shown that scaling the large frequency separation is more sensitive to near-surface effects, but is much less affected by an incorrect mode identification. As a result, one can identify pulsation modes by looking for an l and n assignment which provides the best agreement between the results from the large frequency separation and those from one of the two other methods. Non-linear effects are also discussed, as is the effects of mixed modes. In particular, we show that mixed modes bring little improvement to the mean density estimates because of their poorly adapted kernels. [less ▲]

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See detailDu laisser-faire au pilotage stratégique ?
Croché, Sarah; Fallon, Catherine ULg

Article for general public (2012)

Présentée comme un instrument clé de la compétitivité régionale depuis la fi n des années nonante, la recherche est l’objet de nombreuses initiatives politiques nationales et européennes. Notamment ... [more ▼]

Présentée comme un instrument clé de la compétitivité régionale depuis la fi n des années nonante, la recherche est l’objet de nombreuses initiatives politiques nationales et européennes. Notamment produite au sein des universités, elle est censée contribuer à la compétitivité de l’Europe sur la scène mondiale et libérer le potentiel d’innovation européen. La note Marcourt propose un renouveau partiel des formes de gouvernance des politiques de recherche en Communauté française qui s’inscrit dans les réformes préconisées par les autorités européennes pour créer l’espace européen de la recherche avec le risque d’un découplage entre recherche et enseignement. Sans compter que ce projet ne dit rien sur le partage des ressources entre équipes universitaires. [less ▲]

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See detailAMP-activated protein kinase controls liposaccharide-induced hyperpermeability
Castanares-Zapatero, Diego; Overtus, M; Communi, Didier et al

in Critical Care (2012, March), 16(suppl 1), 17

Organ dysfunction determines the severity of sepsis and is correlated to mortality. Endothelial increased permeability contributes to the development of organ failure. AMP-activated protein kinase (AMPK ... [more ▼]

Organ dysfunction determines the severity of sepsis and is correlated to mortality. Endothelial increased permeability contributes to the development of organ failure. AMP-activated protein kinase (AMPK) has been shown to modulate cytoskeleton and could mediate endothelial permeability. Our hypothesis is that AMPK controls sepsis-induced hyperpermeability in the heart and is involved in septic cardiomyopathy. Sepsis was induced by intraperitoneal injection of liposaccharide, 10 mg/kg (LPS). Alpha-1 AMPK knockout mice (α1KO) were compared with wild-type. Vascular permeability was characterized by Evans blue extravasation. Inflammatory cytokine mRNA expression was determined by qPCR analysis. Left ventricular mass was assessed by echocardiography. In addition, to emphasize the beneficial role of AMPK on heart vascular permeability, AMPK activator (acadesine) was administered to C57Bl6 mice before LPS injection. The ANOVA test with Bonferroni's post hoc test and the log-rank test were used. P < 0.05 was considered as significant. Increased cardiac vascular permeability was observed in the LPS group in comparison to untreated animals (2.5% vs. 16%; P < 0.05). The α1KO mice exhibited an increase vascular permeability after LPS injection in comparison to wild-type mice (41.5% vs. 16%; P < 0.05). α1KO animals had a significant mortality increase after LPS injection (70% vs. 10%; P < 0.05). LPS markedly induced the production of proinflammatory cytokines (TNFα, IL-1β, IL-6) that were significantly higher in the α1KO animals. More importantly, LPS treatment leads to an increased left ventricular mass in the α1KO mice within 24 hours, suggesting the onset of edema. Finally LPS-induced vascular hyperpermeability was greatly reduced after AMPK activation by acadesine (13.2% vs. 40%; P < 0.05). AMPK importantly regulates cardiac vascular permeability and could control the sepsis-induced cardiomyopathy. AMPK could represent a new pharmacological target of sepsis. [less ▲]

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See detailNew Hypotheses on serial offender's spatial behaviour
Trotta, Marie ULg

in Pundt, Hardy; Bernard, Lars (Eds.) Proceedings 1st AGILE PhD School (2012, March)

Geographic profiling is a methodology used to delineate a prior search area for a serial offender. Two new hypotheses integrating recent researches on offender’s behaviour are proposed to broaden the ... [more ▼]

Geographic profiling is a methodology used to delineate a prior search area for a serial offender. Two new hypotheses integrating recent researches on offender’s behaviour are proposed to broaden the applicability of the techniques of geographic profiling to commuters and irregular patterns of crimes. The journeysto- crime variance and place attractiveness will be successively integrated in GP methods. In order to evaluate the variance of the journeys-to-crime on real road network, a method based on least square adjustment in raster mode is developed. A real case of serial rapes illustrates the effectiveness of those assumptions for a non-uniform pattern of crimes. [less ▲]

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See detailLes techniques d'instrumentation en prothèse fixe
KOENIG, Vinciane ULg

Scientific conference (2012, March)

Detailed reference viewed: 18 (1 ULg)
See detailLa primauté de l’intentionnalité et ses conséquences philosophiques
Boccaccini, Federico ULg

Conference (2012, March)

Detailed reference viewed: 18 (1 ULg)
See detailIntroduction à la Renaissance italienne
Warnauts, Samuelle ULg

Conference given outside the academic context (2012)

Detailed reference viewed: 45 (5 ULg)
See detailCarte hydrogéologique de Wallonie, Louveigné-Spa; 49/3-4, 1/25.000 : [notice explicative]
Ruthy, Ingrid ULg; Dassargues, Alain ULg

Book published by Service Public de Wallonie, DGARNE - Version provisoire : mars 2012 (2012)

Detailed reference viewed: 5 (1 ULg)