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Results 1021-1040 of 9817.
  Prix Nobel d'Economie et mathématiquesBair, Jacques  ; Haesbroeck, Gentiane in Losanges (2013), 20 Le Prix Nobel d'Economie 2012 a été décerné aux deux mathématiciens américains Lloyd Shapley et Alvin Roth. Cet événement nous a donné l'occasion de nous pencher quelque peu sur des prix internationaux ... [more ▼] Le Prix Nobel d'Economie 2012 a été décerné aux deux mathématiciens américains Lloyd Shapley et Alvin Roth. Cet événement nous a donné l'occasion de nous pencher quelque peu sur des prix internationaux pouvant être attribués à des mathématiciens. [less ▲]  Composition chimique et test d’efficacité in vitro des huiles essentielles extraites de feuilles fraîches du basilic commun (Ocimum basilicum) et du basilic tropical (Ocimum gratissimum) sur Salmonella enterica sérotype Oakland et Salmonella enterica sérotype Legon; ; et al in Journal de société Ouest-Africaine de Chimie (2013) Detailed reference viewed: 18 (1 ULg)La mosaïque pentecôtisteDemart, Sarah in Politique : Revue de Débats (2013) La transformation du paysage religieux de nos villes est une forme de la multiculturalité en acte. Mais celle-ci ne se réduit pas à l’islam qui mobilise la plupart des controverses. Le renouveau religieux ... [more ▼] La transformation du paysage religieux de nos villes est une forme de la multiculturalité en acte. Mais celle-ci ne se réduit pas à l’islam qui mobilise la plupart des controverses. Le renouveau religieux qui se manifeste à l’intérieur des communautés congolaises mérite également l’intérêt. [less ▲] Présence des Congolais à Bruxelles et postcolonialismesDemart, Sarah in Agir par la culture (2013), 33(printemps), Dictionnaire contrastif français - néerlandaisTheissen, Siegfried ; ; Rasier, Laurent Book published by Presses universitaires de Louvain (2013) Impact of bone marrow-derived mesenchymal stromal cells on experimental xenogeneic graft-versus-host disease; Belle, Ludovic ; LECHANTEUR, Chantal et alin Cytotherapy (2013), 15(3), 267-279 Background aims. Graft-versus-host disease (GVHD) is a life-threatening complication of allogeneic hematopoietic cell transplantation caused by donor T cells reacting against host tissues. Previous ... [more ▼] Background aims. Graft-versus-host disease (GVHD) is a life-threatening complication of allogeneic hematopoietic cell transplantation caused by donor T cells reacting against host tissues. Previous studies have suggested that mesenchymal stromal cells (MSCs) could exert potent immunosuppressive effects. Methods. The ability of human bone marrow derived MSCs to prevent xenogeneic GVHD in non-obese diabetic/severe combined immunodeficient (NOD/SCID) mice and in NOD/SCID/interleukin-2Rg(null) (NSG) mice transplanted with human peripheral blood mononuclear cells (PBMCs) was assessed. Results. Injection of 200 106 human PBMCs intraperitoneally (IP) into sub-lethally (3.0 Gy) irradiated NOD/SCID mice also given anti-asialo GM1 antibodies IP 1 day prior and 8 days after transplantation induced lethal xenogeneic GVHD in all tested mice. Co-injection of 2 106 MSCs IP on day 0 did not prevent lethal xenogeneic GVHD induced by injection of human PBMCs. Similarly, injection of 30 106 human PBMCs IP into sub-lethally (2.5 Gy) irradiated NSG mice induced a lethal xenogeneic GVHD in all tested mice. Injection of 3 106 MSCs IP on days 0, 7, 14 and 21 did not prevent lethal xenogeneic GVHD induced by injection of human PBMCs. Conclusions. Injection of MSCs did not prevent xenogeneic GVHD in these two humanized mice models. [less ▲] Detailed reference viewed: 13 (5 ULg)La pile à combustible: du marché de niche au marché de masseJob, Nathalie Conference given outside the academic context (2013) Evolution du risque lié aux inondations de la Meuse : Influences relatives du climat et de la croissance des zones résidentiellesBeckers, Arnaud ; ; Dewals, Benjamin et alScientific conference (2013, February 28) Chaque année, les inondations par débordement des rivières provoquent des dommages significatifs en Wallonie. L’ampleur de ceux-ci est liée à l’importance des crues elles-mêmes, mais aussi à l’occupation ... [more ▼] Chaque année, les inondations par débordement des rivières provoquent des dommages significatifs en Wallonie. L’ampleur de ceux-ci est liée à l’importance des crues elles-mêmes, mais aussi à l’occupation du sol des terrains inondés. Dans le contexte des changements climatiques, comment évolueront les débits des crues « extrêmes » ? Quelle pourrait être l’influence de l’évolution de l’occupation du sol sur les dommages ? La vallée de la Meuse a été choisie pour investiguer et concrétiser les réponses à ces questions. Les dommages liés à une crue centennale ont été calculés pour la situation actuelle ainsi que pour différentes situations potentielles en 2100, suivant un scénario d’évolution climatique et neuf scénarios d’urbanisation de la Wallonie. L'accent sera mis sur tant sur le développement de ces scénarios que sur les conclusions robustes tirées des résultats obtenus en termes d’influence relative du climat et de l’occupation du sol sur les dommages futurs. [less ▲] Detailed reference viewed: 27 (6 ULg) New pro-death function of NIK downstream of TNFR1Boutaffala, Layla Doctoral thesis (2013) Detailed reference viewed: 36 (14 ULg)Vers la majorité absolue pour la N-VA et le Vlaams Belang en 2014 ?Behrendt, Christian Article for general public (2013) Selon le dernier sondage La Libre/RTBF/Dedicated Research, la N-VA obtiendrait 39 pc des intentions de vote et le Vlaams Belang 6,8 pc. Si ces pourcentages étaient effectivement atteints lors des ... [more ▼] Selon le dernier sondage La Libre/RTBF/Dedicated Research, la N-VA obtiendrait 39 pc des intentions de vote et le Vlaams Belang 6,8 pc. Si ces pourcentages étaient effectivement atteints lors des élections législatives au printemps 2014, la N-VA et le Belang obtiendraient ensemble 44 des 87 sièges du groupe linguistique néerlandais de la Chambre des représentants, ce qui serait synonyme de la majorité absolue. Au point de vue institutionnel, de tels résultats représenteraient un défi important pour le pays. [less ▲] Detailed reference viewed: 39 (4 ULg)Controlled and automatic memory retrieval in Alzheimer's diseaseBastin, Christine Conference (2013, February 28) Detailed reference viewed: 14 (0 ULg) New Surface-Enhanced Raman Scattering Platforms: Composite Calcium Carbonate Microspheres Coated with Astralen and Silver Nanoparticles; ; et al in Langmuir (2013) Detailed reference viewed: 21 (1 ULg)5. Les régulateurs de croissance; ; et al in Bodson, Bernard; Destain, Jean-Pierre (Eds.) Livre Blanc - Céréales (2013, February 27) 3. Contrôle des populations de mauvaises herbesJaunard, Delphine ; Monty, Arnaud ; Mahy, Grégory et alin Bodson, Bernard; Destain, Jean-Pierre (Eds.) Livre Blanc - Céréales (2013, February 27) Detailed reference viewed: 8 (4 ULg)Effect of uncertainty in surface mass balance–elevation feedback on projections of the future sea level contribution of the Greenland ice sheet – Part 1: Parameterisation; Fettweis, Xavier ; et alin Cryosphere Discussions (The) (2013), 7 We present a new parameterisation that relates surface mass balance (SMB: the sum of surface accumulation and surface ablation) to changes in surface elevation of the Greenland ice sheet (GrIS) for the ... [more ▼] We present a new parameterisation that relates surface mass balance (SMB: the sum of surface accumulation and surface ablation) to changes in surface elevation of the Greenland ice sheet (GrIS) for the MAR regional climate model. The motivation is to dynamically adjust SMB as the GrIS evolves, allowing us to force ice sheet models with SMB simulated by MAR while incorporating the SMB–elevation feedback, without the substantial technical challenges of coupling the two models. This also allows us to assess the effect of elevation feedback uncertainty on the GrIS contribution to sea level, using multiple global climate and ice sheet models, without the need for additional, expensive MAR simulations. We estimate this relationship separately below and above the equilibrium line altitude (ELA, separating negative and positive SMB) and for regions north and south of 77° N, from a set of MAR simulations in which we alter the ice sheet surface elevation. These give four "SMB lapse rates", gradients that relate SMB changes to elevation changes. We assess uncertainties within a Bayesian framework, estimating probability distributions for each gradient from which we present best estimates and credibility intervals (CIs) that bound 95% of the probability. Below the ELA our gradient estimates are mostly positive, because SMB usually increases with elevation: 0.54 (95% CI: −0.22 to 1.34) kg m−3 a−1 for the north, and 1.89 (1.03 to 2.61) kg m−3 a−1 for the south. Above the ELA the gradients are much smaller: 0.09 (−0.03 to 0.22) kg m−3 a−1 in the north, and 0.06 (−0.07 to 0.56) kg m−3 a−1 in the south, because SMB can either increase or decrease in response to increased elevation. Our statistically based approach allows us to make probabilistic assessments for the effect of elevation feedback uncertainty on sea level projections. In a companion paper we use the best estimates and upper and lower CI bounds in five ice sheet models, and the full probability distributions in another, to adjust simulated SMB from MAR forced by two global climate models for the SRES A1B scenario (Edwards et al., 2013). [less ▲] Detailed reference viewed: 33 (2 ULg)Effect of uncertainty in surface mass balance elevation feedback on projections of the future sea level contribution of the Greenland ice sheet – Part 2: Projections; Fettweis, Xavier ; et alin Cryosphere Discussions (The) (2013), 7 We apply a new parameterisation of the Greenland ice sheet (GrIS) feedback between surface mass balance (SMB: the sum of surface accumulation and surface ablation) and surface elevation in the MAR ... [more ▼] We apply a new parameterisation of the Greenland ice sheet (GrIS) feedback between surface mass balance (SMB: the sum of surface accumulation and surface ablation) and surface elevation in the MAR regional climate model (Edwards et al., 2013) to projections of future climate change using five ice sheet models (ISMs). The MAR climate projections are for 2000–2199, forced by the ECHAM5 and HadCM3 global climate models (GCMs) under the SRES A1B emissions scenario. The additional sea level contribution due to the SMB-elevation feedback averaged over five ISM projections for ECHAM5 and three for HadCM3 is 4.3% (best estimate; 95% credibility interval 1.8–6.9%) at 2100, and 9.6% (best estimate; 95% credibility interval 3.6–16.0%) at 2200. In all results the elevation feedback is significantly positive, amplifying the GrIS sea level contribution relative to the MAR projections in which the ice sheet topography is fixed: the lower bounds of our 95% credibility intervals (CIs) for sea level contributions are larger than the "no feedback" case for all ISMs and GCMs. Our method is novel in sea level projections because we propagate three types of modelling uncertainty – GCM and ISM structural uncertainties, and elevation feedback parameterisation uncertainty – along the causal chain, from SRES scenario to sea level, within a coherent experimental design and statistical framework. The relative contributions to uncertainty depend on the timescale of interest. At 2100, the GCM uncertainty is largest, but by 2200 both the ISM and parameterisation uncertainties are larger. We also perform a~perturbed parameter ensemble with one ISM to estimate the shape of the projected sea level probability distribution; our results indicates that the probability density is slightly skewed towards higher sea level contributions. [less ▲] Detailed reference viewed: 28 (1 ULg)Experimental methods for Lode angle characterization in ductile fractureGuzmán Inostroza, Carlos Felipe Conference (2013, February 27) Detailed reference viewed: 30 (17 ULg)Le contrôle du commerce nucléaire: comment concilier l'inconciliable (?)Paile, Sylvain ; Michel, Quentin Conference given outside the academic context (2013) Detailed reference viewed: 22 (3 ULg)Livre Blanc CéréalesBodson, Bernard ; Destain, Jean-Pierre Book published by Gembloux Agro-Bio Tech - Edition février 2013 (2013) Detailed reference viewed: 7 (4 ULg)2. Implantation des culturesEylenbosch, Damien ; Pierreux, Jérome ; et alin Bodson, Bernard; Destain, Jean-Pierre (Eds.) Livre Blanc - Céréales (2013, February 27) Detailed reference viewed: 15 (7 ULg) |
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