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See detailLa tradition textuelle de Gerard du Frattre, un fragment d’histoire littéraire ?
Lambert, Adélaïde ULg

Conference (2016, November 09)

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See detailBulk high-temperature superconducting hollow cylinders used for magnetic shielding: effect of an initial trapped field on the shielding performances.
Wera, Laurent ULg; Fagnard, Jean-François ULg; Hogan, Kevin ULg et al

Poster (2016, November 09)

Bulk High-Temperature Superconductors (HTS) can be used as efficient passive magnetic shields with performances exceeding those of conventional ferromagnetic materials. The most common geometry for a ... [more ▼]

Bulk High-Temperature Superconductors (HTS) can be used as efficient passive magnetic shields with performances exceeding those of conventional ferromagnetic materials. The most common geometry for a superconducting shield is a bulk hollow cylinder. In this work, we investigate the magnetic shielding properties when the tube is not in the virgin state. Such a situation happens in practice when the tube has been initially subjected to a first magnetic field. The induced superconducting currents that are flowing in the tube generate a trapped magnetic moment which may deteriorate the shielding of a second field. Here we study experimentally how an initial trapped moment affects the shielding of a magnetic field, when they are both perpendicular to each other. In particular, we focus on the effect of an axial trapped moment on the transverse shielding performances and on the effect of a transverse trapped field on the axial or the transverse shielding performances. Finally, we show how the pristine state of the tube can be restored when applying an external field of adequate amplitude. The consequence for practical applications is that it is possible to recover shielding properties similar to those obtained in the virgin state without heating up the shield above its critical temperature TC. [less ▲]

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See detailBilan de masse en surface à haute résolution sur le Groenland à l'aide du modèle MAR et d'une technique de régionalisation couplée
Kittel, Christoph ULg

Scientific conference (2016, November 09)

Durant les vingt dernières années, l’inlandsis du Groenland a progressivement diminué en taille suite à une augmentation du ruissellement de l’eau de fonte en été sans compensation par une augmentation ... [more ▼]

Durant les vingt dernières années, l’inlandsis du Groenland a progressivement diminué en taille suite à une augmentation du ruissellement de l’eau de fonte en été sans compensation par une augmentation des précipitations. De plus, le taux de perte de la glace s’est aussi accéléré, ce qui a comme conséquence une élévation plus rapide du niveau général des mers et davantage d’eau douce rejetée dans l’océan. Les principales incertitudes lorsqu’on estime le bilan de mase en surface (BMS) de l’inlandsis du Groenland proviennent des marges où plusieurs processus particuliers ont lieu. Par exemple, la rétroaction de l’albédo de la neige et le regel de l’eau fondue en surface peut renforcer ou au contraire diminuer la fonte. De plus, les fortes pentes en bordure d’inlandsis sont responsables de la distribution spatiale des précipitations qui correspondent à l’accumulation de masse de l’inlandsis. En modélisation, cela signifie qu’il est nécessaire d’utiliser des modèles avec une (très) haute résolution pour résoudre ces caractéristiques, ce qui est très couteux en temps de calcul. C’est pourquoi cette étude présente l’évaluation d’une nouvelle méthode de régionalisation couplée dans le modèle MAR qui permet d’utiliser une grille à haute résolution dans le module de surface (SISVAT) couplé au module atmosphérique de MAR utilisant une résolution deux fois plus basse. La méthode corrige l’humidité spécifique et la température de proche-surface de MAR à l’aide d’un gradient d’altitude avant de forcer le module de surface. Des simulations ont été lancées avec deux résolutions différentes et sont forcées avec les réanalyses ERA-Interim sur la période allant de 1979 à 2014. La régionalisation couplée est évaluée par rapport à la base de données PROMICE et montrent de meilleurs résultats avec les observations de BMS sur l’inlandsis par rapport aux résultats de MAR dans sa version standard. La comparaison de la régionalisation couplée à une régionalisation a posteriori a révélé peu de différence significative sauf près de la ligne d’équilibre. Seule la méthode couplée permet de faire regeler entièrement l’eau fondue et la pluie en surface tandis que ce processus n’est qu’implicitement pris en compte dans la méthode a posteriori. Comparé à MAR dans sa version standard à résolution équivalente, les résultats régionalisés de façon couplée montrent une surestimation de l’accumulation au centre de l’inlandsis et une surestimation de l’ablation aux marges dus aux biais que la méthode implique sur les précipitations renforçant la rétroaction de l’albédo de la neige. En outre, les gradients de température sont légèrement trop importants entraînant plus de fonte. En conclusion, la méthode de régionalisation couplée doit encore être améliorée en intégrant une correction des précipitations. Pour ce qui est du couplage entre modèle de dynamique glaciaire à très haute résolution et modèle climatique à haute résolution, la méthode a posteriori reste suffisante. [less ▲]

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See detailTrapped populations: A failure to adapt?
Zickgraf, Caroline ULg

Conference given outside the academic context (2016)

Climate change is now widely recognized as a key driver of migration and displacement in many regions of the world. At the same time, the public health community is investigating the health impacts of ... [more ▼]

Climate change is now widely recognized as a key driver of migration and displacement in many regions of the world. At the same time, the public health community is investigating the health impacts of climate change, but these three dimensions have not often been linked. Climate and migration have got a complex, non-linear and unpredictable relationship that is caused by or causes many issues but also opportunities. Migration related to climate change impacts health, but at the same time it can create opportunities to improve health security. As an example for adverse health effects, the (re)mergence of vector-borne diseases driven by climate change might be amplified by migration flows to new territories. If food security has been addressed many times as a direct consequence of disruption of agricultural activities, other socio-economical, anthropological and political issues are often set aside. On the other hand, migration could mean better life and better access to health services. Adopting a transdisciplinary approach could help understand the unclear and unpredictable nature and dynamics of human migration as a consequence of climate change. This conference will bring together scientists and experts to share, better understand, and advise, through a transdisciplinary approach, some tangible solutions to enhance the health context of climate migrants. The two round table topics will include: migration as an adaptation strategy against climate change, climate migration and its impacts on health as well as open questions aimed at discussing the future research priorities for global health. [less ▲]

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See detaildiscutante de la session 'Men's wellbeing I'
Gavray, Claire ULg

Scientific conference (2016, November 09)

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See detailForbidden directions in Japan
Goto, Kanako ULg

Learning material (2016)

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See detailSite expérimental du Martinet - Premiers résultats
Liénard, Amandine ULg; Colinet, Gilles ULg

Conference given outside the academic context (2016)

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See detailExploration ENMG du plexus brachial
WANG, François-Charles ULg

Scientific conference (2016, November 08)

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See detailLes conséquences juridiques du Brexit
Van Cleynenbreugel, Pieter ULg

Conference given outside the academic context (2016)

This presentation offers an overview of the legal consequences of a Brexit and the steps to be taken in application of Article 50 TEU.

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See detailConséquences pour la Belgique des élections présidentielles américaines
Verjans, Pierre ULg

Conference given outside the academic context (2016)

Imprévisibilité de l'électorat et conséquences sur les pays européens des élections américaines.

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See detailSoins et accompagnement de la personne âgée (avec ou sans maladie d’Alzheimer) dans nos sociétés actuelles...
Adam, Stéphane ULg

Conference given outside the academic context (2016)

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See detailThe Commons in the Tonle Sap Flood Plain: Insights from community fisheries management
Diepart, Jean-Christophe ULg; Oeur, Il; Mellac, Marie

Scientific conference (2016, November 08)

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See detailLes traités de paix et la Société des Nations
Genin, Vincent ULg

Conference given outside the academic context (2016)

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See detailVoir l'invisible. A propos de "The Invisible Man" de James Whale (1933)
Tomasovic, Dick ULg

Conference given outside the academic context (2016)

Présentation du film "The Invisible Man" de James Whale. Analyse des principes esthétiques de l'oeuvre.

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See detailSanciones colectivas
Colussi, Ilaria Anna ULg

Scientific conference (2016, November 07)

The conference focused on international relations, strategic policies and security issues, such as the birth and evolution of Islamic State. The speech was about international sanctions adopted for ... [more ▼]

The conference focused on international relations, strategic policies and security issues, such as the birth and evolution of Islamic State. The speech was about international sanctions adopted for guaranteeing peace and security. The legal framework has been analyzed, together with the political, economic and social effects of trade sanctions (such as embargoes) both from the perspective of sanctioning States and sanctioned ones. [less ▲]

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See detailFlussi Migratori
Mazzola, Alessandro ULg

Speech/Talk (2016)

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See detailAide aux aidants de personnes âgées de 65 ans et + en perte d'autonomie: Projet INTERREG
Adam, Stéphane ULg; Boyals, Sandrine

Conference given outside the academic context (2016)

Detailed reference viewed: 52 (1 ULg)
See detaildiscutante de 5 présentations
Gavray, Claire ULg

Scientific conference (2016, November 07)

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Peer Reviewed
See detailSevere deficiency of the somatotrope GHRH/GH/IGF-1 axis induces a dramatic susceptibility to Streptococcus pneumoniae infection.
Farhat, Khalil ULg; Bodart, Gwennaëlle ULg; Desmet, Christophe ULg et al

Poster (2016, November 07)

Deletion of the growth hormone-releasing hormone gene (Ghrh) results in a severe deficiency of the somatotrope GHRH-GH-IGF-1 axis causing dwarf phenotype that can be reversed by GH or GHRH supplementation ... [more ▼]

Deletion of the growth hormone-releasing hormone gene (Ghrh) results in a severe deficiency of the somatotrope GHRH-GH-IGF-1 axis causing dwarf phenotype that can be reversed by GH or GHRH supplementation (Alba & Salvatori, Endocrinology 2004;145:4134). In basal conditions, the immunological phenotype of Ghrh-/- mice is not markedly disturbed except for a decrease in B cells and an increase in generation of thymic (t) Treg cells (submitted for publication). These data prompted us to investigate immune responses of Ghrh-/- mice using vaccination and infection by S. pneumoniae as models since the response to both stimuli rely on the innate immune system and B cells. Ghrh-/- mice were unable to trigger production of specific IgM and IgG against serotype 1 pneumococcal polysaccharide (PPS) after vaccination with either native PPS (Pnx23) or protein-PPS conjugate (Prev-13) vaccines. A short GH supplementation to Ghrh-/- mice (1 daily injection of 1 mg/kg GH for 4 weeks) restored IgM and IgG response to Pnx23 vaccine but not to Prev-13. This suggests that GH differently impacts on B-1, marginal zone B-2 or innate B-1 B cells. Furthermore, after intranasal instillation of a non-lethal dose of serotype 1 S. pneumoniae, Ghrh-/- mice exhibited a dramatic susceptibility reflected by bacteremia 24h after infection and a survival limit of 72 h, compared to WT C57BL/6 mice that need only 24h to clear infection. The possible impact of GH deficiency on components of the innate immune system that play an important role in defense of the respiratory tract against pneumococcal infection is under current investigation. (*Equal first and last authors. KF is supported by a research grant from the Lebanese Government; GB is Research Assistant, CD is Research Associate, and VG is Research Director at the NFSR of Belgium). [less ▲]

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See detailThe Hugo Conference: Environment, Migration, Politics - Compendium of abstracts
De Bruyckere, Luka ULg; Gemenne, François ULg; Ozer, Pierre ULg et al

Book published by University of Liège (2016)

Detailed reference viewed: 36 (2 ULg)