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See detailLe projet de recherches SAFE
Marique, Anne-Françoise ULiege; De Meester, Tatiana; De Herde, André et al

Poster (2011, December 08)

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See detailObservations of the White Light Corona from Solar Orbiter and Solar Probe Plus
Howard, Russell; Thernisien, Arnaud; Vourlidas, Angelos et al

Conference (2011, December 08)

The SoloHI instrument on Solar Orbiter and the WISPR instrument on Solar Probe+ will make white light coronagraphic images of the corona as the two spacecraft orbit the Sun. The minimum perihelia for ... [more ▼]

The SoloHI instrument on Solar Orbiter and the WISPR instrument on Solar Probe+ will make white light coronagraphic images of the corona as the two spacecraft orbit the Sun. The minimum perihelia for Solar Orbiter is about 60 Rsun and for SP+ is 9.5 Rsun. The wide field of view of the WISPR instrument (about 105 degrees radially) corresponds to viewing the corona from 2.2 Rsun to 20 Rsun. Thus the entire Thomson hemisphere is contained within the telescope’s field and we need to think of the instrument as being a traditional remote sensing instrument and then transitioning to a local in-situ instrument. The local behavior derives from the fact that the maximum Thomson scattering will favor the electron plasma close to the spacecraft - exactly what the in-situ instruments will be sampling. SoloHI and WISPR will also observe scattered light from dust in the inner heliosphere, which will be an entirely new spatial regime for dust observations from a coronagraph, which we assume to arise from dust in the general neighborhood of about half way between the observer and the Sun. As the dust grains approach the Sun, they evaporate and do not contribute to the scattering. A dust free zone has been postulated to exist somewhere inside of 5 Rsun where all dust is evaporated, but this has never been observed. The radial position where the evaporation occurs will depend on the precise molecular composition of the individual grains. The orbital plane of Solar Orbiter will gradually increase up to about 35 degrees, enabling a very different view through the zodiacal dust cloud to test the models generated from in-ecliptic observations. In this paper we will explore some of the issues associated with the observation of the dust and will present a simple model to explore the sensitivity of the instrument to observe such evaporations. [less ▲]

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See detailAurores sur les planètes géantes
Bonfond, Bertrand ULiege

Scientific conference (2011, December 08)

Depuis les premières détections d'émissions aurorales par les sondes Voyager à la fin des années 70, nos connaissances des aurores de Jupiter et de Saturne ont considérablement progressé. Je présenterai ... [more ▼]

Depuis les premières détections d'émissions aurorales par les sondes Voyager à la fin des années 70, nos connaissances des aurores de Jupiter et de Saturne ont considérablement progressé. Je présenterai ici quelques uns des derniers résultats obtenus à l'aide du télescope spatial Hubble et de la sonde Cassini en orbite autour de Saturne. Ces images acquises dans le domaine ultraviolet révèlent une complexité que l'on commence seulement à appréhender. Assemblées en séquences, elles dévoilent une dynamique surprenante. Flashs, pulsations, expansions, contractions, apparitions, disparitions, fusions, séparations et mouvements relatifs de structures étendues sur des dizaines de milliers de kilomètres ou localisés sur quelques centaines de kilomètres : la diversité des comportements que nous observons est le témoignage de la richesse des processus en œuvre dans les magnétosphères de Jupiter et Saturne. Lunes exotiques, volcans et geysers colossaux, champs magnétiques gigantesques et rotations planétaires rapides sont les ingrédients de ce surprenant laboratoire de physique des plasmas. [less ▲]

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See detailCaractérisation des coposés volatils des huiles d'olive produites dans des coopératives de la région orientale du Maroc
Tanouti, K.; Serghini-Caid, H.; Sindic, Marianne ULiege et al

in 5èmes Journées Internationales d'Etude sur les Lipides - JIEL 2011 : Graisses alimentaires, Lipides marins, Nutrition et Santé (2011, December 08)

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Peer Reviewed
See detailEvaluation environnementale de la production d'électricité photovoltaïque par Analyse du Cycle de Vie
Gerbinet, Saïcha ULiege; Belboom, Sandra ULiege; Léonard, Angélique ULiege

in Poster session - Quelles approches transversales pour intégrer le développement durable dans la recherche? Exemples en Fédération Wallonie-Bruxelles - Recueil des Abstracts (2011, December 08)

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See detailEquivariant quantization in supergeometry
Radoux, Fabian ULiege

Scientific conference (2011, December 08)

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See detailLe CV du chercheur. Évaluation et valeur comparative
Dozo, Björn-Olav ULiege; Fréché, Bibiane

Scientific conference (2011, December 08)

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See detailProlongation de la durée de conservation de l'huile de cactus par ajout des huiles essentielles de quelques plantes aromatiques de la région du Sud marocain et d'huile d'Argan
Zine, S.; El Hadek, M.; Sindic, Marianne ULiege

in 5èmes Journées Internationales d'Etude sur les Lipides - JIEL 2011 : Graisses alimentaires, Lipides marins, Nutrition et Santé (2011, December 08)

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Peer Reviewed
See detailSafety of long-term treatment of HAM/TSP patients with valproic acid
Olindo, Stéphane; Belrose, Gildas; Gillet, Nicolas ULiege et al

in Blood (2011), 118(24), 6306-6309

HTLV-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP) is a neurodegenerative disease of the central nervous system induced by Human T lymphotropic virus type 1 (HTLV-1). As a potential ... [more ▼]

HTLV-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP) is a neurodegenerative disease of the central nervous system induced by Human T lymphotropic virus type 1 (HTLV-1). As a potential therapeutic approach, we previously suggested reducing the proviral load (PVL) by modulating lysine deacetylase activity using valproic acid (VPA) and exposing virus-positive cells to the host immune response. We conducted a single-center, two-year open-label trial, with 19 HAM/TSP volunteers treated with oral VPA. PVL, CD38/HLA-DR expression and CD8+ lysis efficiency were not significantly affected by VPA. Mean scores of HAM/TSP disability did not differ between baseline and final visit. Walking Time Test (WTT) increased significantly (>20%) in 3 patients and was in keeping with minor VPA side effects (drowsiness and tremor). WTT improved rapidly after VPA discontinuation. We conclude that long term treatment with VPA is safe in HAM/TSP. [less ▲]

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See detailTactique et techniques du corps dans "L'An 5 de la révolution algérienne" de Frantz Fanon
Cormann, Grégory ULiege

Scientific conference (2011, December 08)

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Peer Reviewed
See detailEvaluation environnementale de la production d'électricité photovoltaïque par Analyse du Cycle de Vie
Gerbinet, Saïcha ULiege; Belboom, Sandra ULiege; Léonard, Angélique ULiege

in Poster session: Quelles approches transversales pour intégrer le développement durable dans la recherche? Exemples en Fédération Wallonie-Bruxelles (2011, December 08)

Detailed reference viewed: 35 (4 ULiège)
See detailLes méandres de la réception des travaux : exposé de synthèse
Kohl, Benoît ULiege

Scientific conference (2011, December 08)

Detailed reference viewed: 29 (3 ULiège)
See detailLong-term biogeochemical impacts of liming the ocean
Ilyina, Tatiana; Wolf-Gladrow, Dieter; Munhoven, Guy ULiege et al

Conference (2011, December 08)

Fossil fuel CO2 emissions result in large-scale long-term perturbations in seawater chemistry. Oceans take up atmospheric CO2, and several geo-engineering approaches have been suggested to mitigate ... [more ▼]

Fossil fuel CO2 emissions result in large-scale long-term perturbations in seawater chemistry. Oceans take up atmospheric CO2, and several geo-engineering approaches have been suggested to mitigate impacts of CO2 emissions and resulting ocean acidification that are based on this property. One of them is to enhance weathering processes to remove atmospheric CO2. This method involves dissolving rocks (i.e. limestone) or adding strong bases (i.e. calcium hydroxide) in the upper ocean and is termed as liming the oceans. The net effect of this approach is to increase ocean alkalinity, thereby increasing the oceanic capacity to store anthropogenic CO2. Another effect of adding alkalinity would be to drive seawater to higher pH values and thus counteract the ongoing ocean acidification. However, whereas adding bases only alter alkalinity of seawater, dissolution of carbonates perturb both, alkalinity and dissolved inorganic carbon budgets. Thus, on longer time scales, these two methods will likely have different biogeochemical effects in the ocean. Here we test enduring implications of the two approaches for marine carbon cycle using the global ocean biogeochemical model HAMOCC. In our model scenarios we add alkalinity in the amounts proportional to fossil fuel emissions. We compare the longterm effectiveness of the two geo-engineering approaches to decrease atmospheric CO2. [less ▲]

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See detailTable ronde autour de "La matrice de la race" (E. Dorlin)
Pieret, Denis ULiege

Scientific conference (2011, December 08)

Detailed reference viewed: 14 (0 ULiège)
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See detailChitosan-based biomimetic scaffolds and methods for preparing the same
Filée, Patrice; Freichels, Astrid ULiege; Jérôme, Christine ULiege et al

Patent (2011)

The invention concerns chitosan biomimetic scaffolds and methods for modulating their intrinsic properties such as rigidity, elasticity, resistance to mechanical stress, porosity, biodegradation and ... [more ▼]

The invention concerns chitosan biomimetic scaffolds and methods for modulating their intrinsic properties such as rigidity, elasticity, resistance to mechanical stress, porosity, biodegradation and absorbance of exudates. Therefore, the present invention relates to a layered chitosan scaffold wherein said layered scaffold comprises at least two fused layers, wherein at least one of the fused layers comprises a chitosan nanofiber membrane and the other fused layer comprises a porous chitosan support layer. Moreover, the present invention provides a layered chitosan scaffold characterized by (i) a good adhesion between the porous and nanofiber layers, (ii) a tuneable porosity of the nanofiber layer by tuning the distance between the nanofibers, (iii) a stable nanofibers and porous morphology even when immersed in water or other solvents and a process for the preparation of such layered chitosan scaffold. Finally, the present invention provides the use of the layered electrospun chitosan scaffold of the invention or the layered electrospun chitosan scaffold produced by the process of the invention as a wound dressing, in tissue engineering or for biomedical applications. [less ▲]

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Peer Reviewed
See detailAssessment of Mytilus galloprovincialis to monitor 19 trace elements in the Calvi Bay
Richir, Jonathan ULiege; Vermeulen, Simon; Biondo, Renzo ULiege et al

Poster (2011, December 08)

Mussel caging with Mytilus galloprovincialis has been successively used to monitor classic trace metal (Cd, Cu, Zn, Cr, Fe, Ni, Pb) pollution of Mediterranean coastal waters at spatial scales ranging from ... [more ▼]

Mussel caging with Mytilus galloprovincialis has been successively used to monitor classic trace metal (Cd, Cu, Zn, Cr, Fe, Ni, Pb) pollution of Mediterranean coastal waters at spatial scales ranging from 10 to 100km. However, its relevance as bioindicator at smaller scales (100 m - 1 km) is poorly known. Moreover, the levels of some little studied trace elements (Al, V, Mn, Sb, Sn, Ag, Mo, Se, As, Co, Be, Bi), recently identified as potential pollutants of coastal environments, have not yet been assessed in that species. In this work, M. galloprovincialis was used to monitor the 19 listed trace elements at the scale of the Calvi Bay (NW Corsica, France). Additionally, we investigated decontamination kinetics and trace element tissue speciation before and after spawning. Mytilus galloprovincialis trace element levels reflect the good water quality of the Calvi Bay, showing little spatial variations either at 100m or 1km scales. Filter feeders are only influenced by their relatively homogeneous pelagic environment (dissolved trace elements and suspended particulate matters), in contrast to organisms which inhabit typically heterogeneous benthic habitats. This bioindicator, a convincing candidate for the monitoring of the 12 little studied trace elements, effectively accumulates the 19 studied elements to 105 seawater concentrations. Mytilus galloprovincialis rapidly equilibrates (within days) with its environment, and is therefore a good indicator of chronic and stable chemical pollutions. Tissue speciation shows that the most relevant organ to monitor trace elements is the hepatopancreas. However, the important variability induced by the reproductive cycle of mussels requires using this bioindicator during its sexual dormancy. [less ▲]

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See detailA Critical Investigation of the Concept of Life: Canguilhem or Bergson
Wong, Tai Tak Andy ULiege

Conference (2011, December 08)

Detailed reference viewed: 30 (0 ULiège)
See detailLes méthodes de datation appliquées à l’archéologie du bâti
Blain, Sophie ULiege

Scientific conference (2011, December 08)

Detailed reference viewed: 32 (4 ULiège)
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See detailSpa au XVIIIe siècle: les chemins croisés de l'écriture
Droixhe, Daniel ULiege

Conference given outside the academic context (2011)

We follow those authors, artists, political and fashionable figures into their meetings, business, love affairs etc. in the "Café de l'Europe": Trenck, Anna-Amélia von Prussia, Marmontel, Marigny ... [more ▼]

We follow those authors, artists, political and fashionable figures into their meetings, business, love affairs etc. in the "Café de l'Europe": Trenck, Anna-Amélia von Prussia, Marmontel, Marigny, Bassompierre, Henry Ellis, Philippe Fermin, Alfieri, Needham; Clootz, Fragonard, Grimm, Henry von Prussia, Raynal, Grimm, Shelburne, the "beau" Lauzun, Sarah Lennox, the princess Czartoryska, Le Gendre, Ketterlin, Gallien de Salmorenc, Mercy-Argenteau, the couple Guéménée, the duchess Polignac, Georgiana Spencer,etc. [less ▲]

Detailed reference viewed: 67 (2 ULiège)