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See detailInfluence of drospirenone on renin-angiotensin-aldosterone system evaluation
VROONEN, Laurent ULg; Cavalier, Etienne ULg; Vranken, Laura ULg et al

in Endocrine Abstracts - 13th European Congress of Endocrinology (2011)

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See detailARM XIX-la séquence SI.LA2 2 = si-la2-min (NP) et quelques relectures de noms propres
Colonna d'Istria, Laurent ULg

in Nouvelles Assyriologiques Brèves et Utilitaires (2011)

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See detailSynthesis and organocatalytic applications of imidazol(in)ium-2- thiocarboxylates
Hans, Morgan ULg; Wouters, Johan; Demonceau, Albert ULg et al

in European Journal of Organic Chemistry (2011), (35), 7083-7091

Five imidazol(in)ium-2-thiocarboxylates bearing cyclohexyl, mesityl, or 2,6-diisopropylphenyl substituents on their nitrogen atoms were prepared from the corresponding imidazol(in)ium chlorides or ... [more ▼]

Five imidazol(in)ium-2-thiocarboxylates bearing cyclohexyl, mesityl, or 2,6-diisopropylphenyl substituents on their nitrogen atoms were prepared from the corresponding imidazol(in)ium chlorides or tetrafluoroborates in a one-pot, two-step procedure involving the in situ generation of free N-heterocyclic carbenes (NHCs) with a strong base followed by trapping with carbonyl sulfide. The resulting NHC•COS zwitterions were isolated in high yields and characterized by IR and NMR spectroscopy. The molecular structure of SIMes•COS was determined by X-ray diffraction analysis. Experimental data and DFT calculations indicated that the negative charge on the thiocarboxylate anion is preferentially delocalized on the sulfur atom. Thermogravimetric analysis showed that the NHC•COS zwitterions undergo thermolysis at temperatures ranging between 110 and 180 °C in the solid state. They are also rather labile in solution. Unlike the related NHC•CS2 betaines, which are highly stable, crystalline materials, they displayed the same type of behavior as the analogous carboxylate adducts, which readily lose their CO2 moiety upon heating or dissolution. Thus, imidazol(in)ium-2-thiocarboxylates acted as convenient NHC precursors in two model organocatalytic transformations. Of the five thiocarboxylates examined, ICy•COS was the most efficient at promoting the acylation of benzyl alcohol with vinyl acetate, whereas SIMes•COS afforded the highest activity in benzoin condensation. [less ▲]

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See detailÉnergie nécessaire au broyage de la biomasse et des produits densifiés
Temmerman, Michaël ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011)

La littérature concernant la consommation énergétique du broyage dans les industries minières montre que cette problématique a été, et est encore, étudiée par de nombreux auteurs. Différents modèles de ... [more ▼]

La littérature concernant la consommation énergétique du broyage dans les industries minières montre que cette problématique a été, et est encore, étudiée par de nombreux auteurs. Différents modèles de broyage sont donc disponibles pour ces industries, en particulier pour le broyage des minerais. Les principaux modèles et certaines de leurs évolutions sont repris dans la présente revue. Le broyage de la biomasse quant à lui a été bien moins étudié. Quelques études ont néanmoins porté sur la mesure des consommations énergétiques engendrées par le broyage de biomasses particulières, dans des systèmes particuliers. Rares sont celles qui prennent en compte suffisamment de paramètres relatifs à la matière entrante et sortante (granulométrie, humidité, origine, etc.) ou les caractéristiques du système de broyage. Pratiquement, aucun modèle de broyage de la biomasse n’a donc été proposé. Concernant le broyage des produits densifiés, aucune donnée ne semble disponible. À la lueur des théories de broyage de l’industrie minière, cette étude propose donc les paramètres à prendre en compte pour une éventuelle modélisation du broyage de la biomasse et des produits densifiés. Mots-clés. Broyage, biomasse, pellets, briquettes, théories [less ▲]

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See detailTrou du Renard and ongoing work on the Aurignacian of the far North
Dinnis, Rob; Flas, Damien ULg

Conference (2011)

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See detailX-ray CT study of the influence of liquid viscosity on fluid phase distribution in modular catalytic packings
Aferka, Saïd ULg; Viva, Aurora; Brunazzi, Elisabetta et al

in Chemical Engineering Transactions (2011), 24

In the frame of the present study, the influence of liquid viscosity on liquid holdup distribution in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an ... [more ▼]

In the frame of the present study, the influence of liquid viscosity on liquid holdup distribution in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an aqueous solution of glycerine, the viscosity of which equals 10 cP, are used as feed liquids. The estimation of liquid holdup is of great interest due to its strong influence on pressure drop, on solid wetting and on heat and mass transfer coefficients. The experimental technique used is high energy X-ray tomography, which is a unique technique to visualize the local liquid distribution inside the complex structure of packings and to quantify the liquid holdup at different scales. [less ▲]

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See detailSelf-DNA release mediates the adjuvant effects of aluminum salts
Marichal, Thomas ULg; Ohata, K; Bedoret, Denis et al

Poster (2011)

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See detailA propos du P. Ambras
Winand, Jean ULg

in Chronique d'Egypte : Bulletin Périodique de la Fondation Egyptologique Reine Elisabeth (2011), 86

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See detailExiste-t-il des communautés sur Internet ? La réponse de trois études du mouvement du logiciel libre
Lejeune, Christophe ULg

in Actes des travaux du comité de recherche « Sociologie de la communication » (2011)

L'Open Directory Project, Debian et Wikipedia sont trois collectifs issus du mouvement du logiciel libre. Leur comparaison permet de dégager les traits communs et les différences d'organisation sociale de ... [more ▼]

L'Open Directory Project, Debian et Wikipedia sont trois collectifs issus du mouvement du logiciel libre. Leur comparaison permet de dégager les traits communs et les différences d'organisation sociale de ces trois collectifs médiatisés par la technologie.Nous examinons dans quelle mesure ces éléments empiriques s'accordent avec les définitions classiques de communauté (fut-elle virtuelle). Nous interrogeons dès lors l'opportunité de caractériser ces phénomènes au moyen d'une telle notion et identifiant deux alternatives : soit modifier les définitions classiques, soit proposer de nouvelles notions. Finalement, nous proposons la notion plus adéquate de collectifs médiatisés orientés vers un projet. [less ▲]

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See detailPhysical modelling of overbank flows with a groyne set on the floodplain
Peltier, Yann ULg

Doctoral thesis (2011)

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See detailL'évolution du comble à la lecture des traités français d'architecture du XVIe au XVIIIe siècle
Gilles, Isabelle ULg

in Hoffsummer, Patrick (Ed.) Les charpentes du XIe au XIXe siècle: Grand Ouest de la France. (2011)

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See detailOptimizing early nutritional support based on recent recommendations in VLBW infants and postnatal growth restriction
SENTERRE, Thibault ULg; Rigo, Jacques ULg

in Journal of Pediatric Gastroenterology and Nutrition (2011), 53(5), 536-542

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See detailEVI1-mediated down regulation of MIR449A is essential for the survival of EVI1 positive leukaemic cells.
De Weer, An; Van der Meulen, Joni; Rondou, Pieter et al

in British Journal of Haematology (2011), 154(3), 337-48

Chromosomal rearrangements involving the MECOM (MDS1 and EVI1 complex) locus are recurrent genetic events in myeloid leukaemia and are associated with poor prognosis. In this study, we assessed the role ... [more ▼]

Chromosomal rearrangements involving the MECOM (MDS1 and EVI1 complex) locus are recurrent genetic events in myeloid leukaemia and are associated with poor prognosis. In this study, we assessed the role of MECOM locus protein EVI1 in the transcriptional regulation of microRNAs (miRNAs) involved in the leukaemic phenotype. For this, we profiled expression of 366 miRNAs in 38 MECOM-rearranged patient samples, normal bone marrow controls and MECOM (EVI1) knock down/re-expression models. Cross-comparison of these miRNA expression profiling data showed that MECOM rearranged leukaemias are characterized by down regulation of MIR449A. Reconstitution of MIR449A expression in MECOM-rearranged cell line models induced apoptosis resulting in a strong decrease in cell viability. These effects might be mediated in part by MIR449A regulation of NOTCH1 and BCL2, which are shown here to be bona fide MIR449A targets. Finally, we confirmed that MIR449A repression is mediated through direct promoter occupation of the EVI1 transcriptional repressor. In conclusion, this study reveals MIR449A as a crucial direct target of the MECOM locus protein EVI1 involved in the pathogenesis of MECOM-rearranged leukaemias and unravels NOTCH1 and BCL2 as important novel targets of MIR449A. This EVI1-MIR449A-NOTCH1/BCL2 regulatory axis might open new possibilities for the development of therapeutic strategies in this poor prognostic leukaemia subgroup. [less ▲]

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See detailSituation of bovine tuberculosis in Ecuador
Proano-Perez, Freddy; Benitez, Washington; Portaels, Franç!oise et al

in Revista panamericana de salud publica (2011), 30(3), 279-286

Bovine tuberculosis (BTB) is a chronic and contagious disease that affects domestic animals, wildlife, and humans. Caused by Mycobacterium bovis, BTB causes major economic losses and poses a serious ... [more ▼]

Bovine tuberculosis (BTB) is a chronic and contagious disease that affects domestic animals, wildlife, and humans. Caused by Mycobacterium bovis, BTB causes major economic losses and poses a serious constraint to international livestock trade. Moreover, in developing countries where BTB controls are lacking, M. bovis is a public health concern. In most developing countries, the prevalence of BTB in livestock is unknown because the information is either not reported or not available. In Ecuador, there is no national BTB control program. This article reviews the BTB situation in Ecuador by examining exhaustive data from tuberculin testing surveys and slaughterhouse surveillance studies conducted in 1972–2008 in a variety of the country’s geographic areas. In Ecuador, several factors, including the dairy industry’s expansion (preempted by the high demand for milk and its byproducts), intensified efforts to increase the cattle population, the presence of M. bovis, and a lack of BTB controls, have caused a rise in BTB prevalence, and consequently, a growing push for the implementation of a national BTB control program. [less ▲]

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See detailDe la structure au lecteur et du code à la fiction : une brève histoire du "récit d'information"
Servais, Christine ULg

in Quaderni : la Revue de la Communication (2011), 74

Depuis la parution en 1966 de L’analyse structurale du récit, l’usage que fait le discours d’information du récit a donné lieu à un très grand nombre de travaux. Emportée par ce succès, la notion de récit ... [more ▼]

Depuis la parution en 1966 de L’analyse structurale du récit, l’usage que fait le discours d’information du récit a donné lieu à un très grand nombre de travaux. Emportée par ce succès, la notion de récit y subit par ailleurs un fléchissement conceptuel qui peut aller jusqu’à désigner la « super forme » implicite à laquelle les médias de masse renverraient nécessairement lorsqu’ils relaient événements ou informations. Un important ensemble de recherches ( inspirées des théories littéraires, notamment la narratologie, des recherches sur le récit « postmoderne » ou, plus récemment, du travail de Paul Ricoeur ou Michel de Certeau sur les liens entre récit et vie quotidienne), ont fait évoluer la manière dont la catégorie « récit » est susceptible de questionner le discours d’information. Cet article propose une lecture épistémologique de cette évolution, et rend compte des conditions d’émergence des enjeux actuellement questionnés dans l’étude des récits d’information. Il montre comment se sont imposées les questions liant récit, mythe et histoire collective puis, plus récemment, récit et fiction, et expose les raisons pour lesquelles, aujourd’hui, ces questions sont déportées vers une approche plus pragmatique, centrée sur la narration en tant qu’elle est un processus de médiation. L’ensemble de ces réflexions impose de clarifier une situation notionnelle parfois confuse ; l’article propose ainsi de réarticuler ensemble récit et narration en leur adjoignant la notion de récitation. [less ▲]

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See detailZu den Grenzen des EuroCom-Konzeptes für EuroComGerm - Zwischenfazit
Berthele, Raphael; Colliander, Peter; Duke, Janet et al

in Pöckl, Wolfgang; Ohnheiser, Ingeborg; Sandrini, Peter (Eds.) Translation – Sprachvariation – Mehrsprachigkeit: : Festschrift für Lew Zybatow zum 60. Geburtstag (2011)

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See detailColoring Graphs Using Two Colors while Avoiding Monochromatic Cycles
Talla Nobibon, Fabrice ULg; Hurkens, Cor A. J.; Leus, Roel et al

in INFORMS Journal on Computing (2011)

We consider the problem of deciding whether a given directed graph can be vertex partitioned into two acyclic subgraphs. Applications of this problem include testing rationality of collective consumption ... [more ▼]

We consider the problem of deciding whether a given directed graph can be vertex partitioned into two acyclic subgraphs. Applications of this problem include testing rationality of collective consumption behavior, a subject in microeconomics. We prove that the problem is NP-complete even for oriented graphs and argue that the existence of a constant-factor approximation algorithm is unlikely for an optimization version that maximizes the number of vertices that can be colored using two colors while avoiding monochromatic cycles. We present three exact algorithms—namely, an integer-programming algorithm based on cycle identification, a backtracking algorithm, and a branch-and-check algorithm. We compare these three algorithms both on real-life instances and on randomly generated graphs. We find that for the latter set of graphs, every algorithm solves instances of considerable size within a few seconds; however, the CPU time of the integer-programming algorithm increases with the number of vertices in the graph more clearly than the CPU time of the two other procedures. For real-life instances, the integer-programming algorithm solves the largest instance in about a half hour, whereas the branch-and-check algorithm takes approximately 10 minutes and the backtracking algorithm less than 5 minutes. Finally, for every algorithm, we also study empirically the transition from a high to a low probability of a YES answer as a function of the number of arcs divided by the number of vertices. [less ▲]

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See detailDrospirenone and interference with renin-antiotensin system
VROONEN, Laurent ULg; Cavalier, Etienne ULg; Vranken, Laura ULg et al

in Annales d'Endocrinologie - 28ème congrès de la société Française d'Endocrinologie (2011)

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See detailReseña de Ficciones barrocas, de Carlos Gamerro
Willson, Patricia ULg

in Iberoamericana (2011), 11(44), 211-214

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See detailOptimal and robust event-related designs for fMRI
Maus, Bärbel ULg; van Breukelen, Gerard J P; Goebel, R et al

Conference (2011)

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