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See detailThe effects of forodesine in murine and human multiple myeloma cells
Bieghs, Liesbeth; Caers, Jo ULg; De Bruyne, Elke et al

in Advances in Hematology (2010)

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See detailHematopoietic stem cell transplantation in the treatment strategy of acute leukemia
Baron, Frédéric ULg; Beguin, Yves ULg

in Belgian Journal of Medical Oncology [=BJMO] (2010), 4

This review article discusses the current indications for allogeneic hematopoietic stem cell transplantation in adult patients with acute myeloid or lymphoblastic leukemia

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See detailRestoration of rupestrian fields, physiognomy of Cerrado threatened by land use changes
Le Stradic, Soizig ULg; Buisson, Elise; Fernandes, Geraldo Wilson

in SER-Europe Conference Proceedings (2010)

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See detailADAPT - Towards an Integrated Decision Tool for Adaptation Measures - Case study: Floods
Giron, Eve; Coninx, Ingrid; Dewals, Benjamin ULg et al

Report (2010)

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See detailMagneto-thermal phenomena in bulk high temperature superconductors subjected to applied AC magnetic fields
Vanderbemden, Philippe ULg; Laurent, Philippe ULg; Fagnard, Jean-François ULg et al

in Superconductor Science and Technology (2010), 23

In the present work we study, both theoretically and experimentally, the temperature increase in a bulk high temperature superconductor subjected to applied AC magnetic fields of large amplitude. We ... [more ▼]

In the present work we study, both theoretically and experimentally, the temperature increase in a bulk high temperature superconductor subjected to applied AC magnetic fields of large amplitude. We calculate analytically the equilibrium temperatures of the bulk sample as a function of the experimental parameters using a simple critical state model for an infinitely long type-II superconducting slab or cylinder. The results show the existence of a limit heat transfer coefficient (AUlim) separating two thermal regimes with different characteristics. The theoretical analysis predicts a ‘forbidden’ temperature window within which the temperature of the superconductor can never stabilize when the heat transfer coefficient is small. In addition, we determine analytical expressions for two threshold fields Htr1 and Htr2 characterizing the importance of magneto-thermal effects and show that a thermal runaway always occurs when the field amplitude is larger than Htr2. The theoretical predictions of the temperature evolution of the bulk sample during a self-heating process agree well with the experimental data. The simple analytical study presented in this paper enables order of magnitude thermal effects to be estimated for simple superconductor geometries under applied AC magnetic fields and can be used to predict the influence of experimental parameters on the self-heating characteristics of bulk type-II superconductors. [less ▲]

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See detailFaillite et marchés publics
Durviaux, Ann-Lawrence ULg; Simar, Renaud ULg

in Chronique des marchés publics 2010 (2010)

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See detailLa problématique théorique : le concept de « carrière migratoire »
Martiniello, Marco ULg; Triest, Frédéric; Rea, Andrea

in Martiniello, Marco; Rea, Andrea; Timmerman, Christiane (Eds.) et al Nouvelles migrations et nouveaux migrants en Belgique (2010)

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See detailFeasibility of a genetic evaluation for milk fatty acids in dairy cattle
Soyeurt, Hélène ULg; Arnould, Valérie ULg; Vanderick, Sylvie ULg et al

in Journal of Dairy Science (2010), 93(E-Suppl 1), 744

Recent development of equations based on mid-infrared (MIR) spectrometry for the prediction of milk fatty acid (FA) contents allows their measurement on a large scale during performance recording. The ... [more ▼]

Recent development of equations based on mid-infrared (MIR) spectrometry for the prediction of milk fatty acid (FA) contents allows their measurement on a large scale during performance recording. The objective was to show that a genetic evaluation for milk FA in dairy cattle is feasible in the Walloon region of Belgium and to report first results. Estimated breeding values (EBV) and associated reliabilities (REL) were computed using a multi-trait test-day animal model similar to the one used for the routine genetic evaluation for yield traits. Studied traits were first lactation test-day milk, fat and protein yields, fat (FAT) and protein contents, and content of saturated fatty acids in milk (g/100g of milk, SAT). More than 6,700,000 records were available for common production and content traits and 194,000 records were used for SAT. Used variance components were estimated using REML. The average SAT content was 2.79% with a standard deviation (SD) of 0.50%. A total of 1,707 Holstein bulls used in Walloon Region had REL superior to 0.49 for all studied traits. REL for SAT ranged from 0.53 to 0.99. A total of 1,217 bulls had REL superior to 0.74. SD of EBV for SAT was 0.20%. The maximum and minimum SAT EBV values were 0.89% and -0.69%, respectively. In order to have a direct measure of the part of FAT that is not due to SAT, a new trait (dSAT) was post-evaluated and defined as difference between expected SAT EBV for a given FAT EBV and the estimated EBV for SAT. This new trait can be assumed to be a direct predictor of the content of unsaturated fatty acids in fat. The interest is that this trait cannot be accurately predicted directly by MIR. The maximum and minimum EBV for dSAT for the 1,707 bulls were -0.28% and 0.24%, respectively. Based on these results, a genetic evaluation for milk fatty acids is feasible. In the bull population used recently, a genetic variability for dSAT exists and could be used to improve the milk fat composition. [less ▲]

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See detailLateral-torsional buckling of carbon steel and stainless steel beams subjected to combined end moments and transverse loads in case of fire
Lopes, Nuno; Vila Real, Paulo; Da Silva, Luis et al

in Kodur, Venkatesh; Franssen, Jean-Marc (Eds.) Structures in Fire. Proceedings of the Sixth International Conference (2010)

This paper presents a numerical study on the behaviour of carbon steel and stainless steel I-beams subjected to lateral-torsional buckling (LTB) in case of fire. The main motivation for this work is the ... [more ▼]

This paper presents a numerical study on the behaviour of carbon steel and stainless steel I-beams subjected to lateral-torsional buckling (LTB) in case of fire. The main motivation for this work is the fact that part 1-2 of Eurocode 3 (EC3) does not take into consideration the beneficial effect, resulting from the reduction of the plastic zones connected with non-uniform bending diagrams along the beam. Although new formulae for the LTB, that approximate better the real behaviour of steel structural elements in case of fire, have been proposed in previous works, they still do not considered the combination of end moments and transverse loads, as it is stated in part 1-1 of EC3. Therefore, in this paper numerical simulations, of steel beams with combined end moments and transverse loads, are compared with the LTB design curves of EC3, and new correction factors that improve these curves are presented. [less ▲]

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See detailVertical distribution of ammonia-oxidizing crenarchaeota and methanogens in the epipelagic waters of Lake Kivu (Rwanda-Democratic Republic of the Congo)
Llirós, M.; Gich, F.; Plasencia, A. et al

in Applied and Environmental Microbiology (2010), 76(20), 6853-6863

Four stratified basins in Lake Kivu (Rwanda-Democratic Republic of theCongo) were sampled in March 2007 to investigate the abundance,distribution, and potential biogeochemical role of planktonic archaea ... [more ▼]

Four stratified basins in Lake Kivu (Rwanda-Democratic Republic of theCongo) were sampled in March 2007 to investigate the abundance,distribution, and potential biogeochemical role of planktonic archaea. We used fluorescence in situ hybridization with catalyzed-reported deposition microscopic counts (CARD-FISH), denaturing gradient gel electrophoresis (DGGE) fingerprinting, and quantitative PCR (qPCR) of signature genes for ammonia-oxidizingarchaea (16S rRNA for marine Crenarchaeota group 1.1a [MCG1] and ammonia monooxygenase subunit A [amoA]). Abundance of archaea ranged from 1 to 4.5% of total DAPI (4'6- diamidino-2-phenylindole) counts with maximal concentrations at theoxic-anoxic transition zone (∼50-m depth). Phylogenetic analysis of the archaeal planktonic community revealed a higher level of richnessof crenarchaeal 16S rRNA gene sequences (21 of the 28 operational taxonomic units [OTUs] identified [75%]) over euryarchaeotal ones (7 OTUs). Sequences affiliated with the kingdom Euryarchaeota were mainly recovered from the anoxic water compartment and mostly grouped into methanogenic lineages (Methanosarcinales and Methanocellales). In turn, crenarchaeal phylotypes were recovered throughout the sampled epipelagic waters (0- to 100-m depth), with clear phylogenetic segregation along the transition from oxic to anoxic water masses. Thus, whereas in the anoxic hypolimnion crenarchaeotal OTUs were mainly assigned to the miscellaneous crenarchaeotic group, the OTUs from the oxic-anoxic transition and above belonged to Crenarchaeota groups 1.1a and 1.1b, two lineages containing most of the ammonia-oxidizing representatives known so far. The concomitant vertical distribution of both nitrite and nitrate maxima and the copy numbers of both MCG1 16S rRNA and amoA genes suggest the potential implication of Crenarchaeota in nitrification processes occurring in the epilimnetic waters of the lake. © 2010, American Society for Microbiology. [less ▲]

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See detailAnalyser les réseaux dans les cours de géographie
Merenne-Schoumaker, Bernadette ULg

in G.E.O. (2010), 67

Les réseaux se retrouvent un peu partout en géographie : réseaux hydrographiques, réseaux de transport, réseaux de firmes, réseaux d’informations, réseaux de villes, réseaux migratoires … D’où le choix de ... [more ▼]

Les réseaux se retrouvent un peu partout en géographie : réseaux hydrographiques, réseaux de transport, réseaux de firmes, réseaux d’informations, réseaux de villes, réseaux migratoires … D’où le choix de cette thématique dans de nombreux congrès comme celui des Sciences de cette année ou encore celui du Festival international de Géographie de Saint-Dié (FIG) en 2005. La plupart s’appuient sur la « géographie », c’est-à-dire sur les territoires dans leurs dimensions physiques et humaines ; parallèlement ils influencent de nombreux systèmes spatiaux étant en quelque sorte les « vaisseaux sanguins » de l’espace géographique. Cette contribution poursuit quatre objectifs : réfléchir au concept de réseau en géographie, présenter quelques types de réseaux et les notions/concepts associés, évoquer quelques pistes d’analyse de ces réseaux et tenter un bilan et des perspectives. [less ▲]

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See detailFormation de coordinateurs de centres de vacances
Danse, Cédric ULg

Learning material (2010)

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See detailSigismondo D’India, un Monteverdi “concitato”. Étude du huitième livre de madrigaux du compositeur palermitain
Morales, Jorge ULg

in Le Jardin de Musique (2010), VI(2), 79-107

Sigismondo D’India fait publier à Rome en 1624 son Huitième livre de madrigaux qui peut être considéré à la fois comme le sommet de l’art madrigalesque du compositeur et comme une œuvre majeure de la ... [more ▼]

Sigismondo D’India fait publier à Rome en 1624 son Huitième livre de madrigaux qui peut être considéré à la fois comme le sommet de l’art madrigalesque du compositeur et comme une œuvre majeure de la première moitié du XVIIe siècle. Avec ce recueil, D’India prend sans aucune ambiguïté la direction de l’esthétique monteverdienne. On y relèvera en particulier la présence d’un discours concitato, genre utilisé pour la première fois par Monteverdi dans le Combattimento di Tancredi e Clorinda en 1624 – année de publication du Huitième livre de D’India – et qui ne sera « théorisé » qu’en 1638 par le compositeur crémonais dans la préface de son recueil de madrigaux guerriers et amoureux. Cet article étudiera la manière dont, avant la publication de la préface de Monteverdi, D’India exprime la colère en musique, ce qui nous permettra d’aborder d’autres aspects musicaux et esthétiques de ce livre, comme les convergences et les divergences entre les styles des deux compositeurs, l’audace de l’interpénétration de la polyphonie et de la monodie, ou encore la dimension théâtrale et poétique de ces madrigaux, ici synonyme de spectacle vocal. [less ▲]

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See detailL'étalement urbain coûte cher. Où en est le débat ?
Halleux, Jean-Marie ULg

in ADEF (Ed.) Repenser le foncier - La ressource foncière au coeur du changement (2010)

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See detailAnalysis of the Gas Holdup Evolution in a Circulating Jet-Loop Nitrifying MBR
Kouakou, Edouard; Marchot, Pierre ULg; Crine, Michel ULg

in International Journal of Chemical Reactor Engineering (2010), 8(1),

This paper presents an analysis of the gas holdup evolution in a novel type of jet-loop membrane bioreactor (JLMBR), designed for nitrogen removal through the nitrite route application. Its configuration ... [more ▼]

This paper presents an analysis of the gas holdup evolution in a novel type of jet-loop membrane bioreactor (JLMBR), designed for nitrogen removal through the nitrite route application. Its configuration is inspired from airlift systems. It consists of a 60-l reactor made of an internal airlift system coupled to an external liquid recirculation loop. Hollow fiber membranes are submerged in the riser compartment. The process was intermittently fed with a synthetic ammonia solution and the gas holdup evolution was monitored for 500 to 600 days. Experiments were performed using flowrates ranging from 0.4 to 1.03 Nm3/h, and from 0 to 0.6 m3/h for air and water, respectively. This corresponded to superficial velocities from 0.004 to 0.03 m.s􀀀1 for air and 0 to 0.011 m.s􀀀1 for water. The gas holdup g was directly measured by the volume expansion method, using a tubular level meter located on the plant. The reported results showed that, in the absence of microorganisms, g ranged between 0.5 and 5.5% for the investigated range of gas liquid superficial velocities, whilst increasing from 0.5 to 4.8% only in the presence of gas (no liquid recirculation). This double influence of the air and the liquid velocities on the gas holdup was described by a multilinear correlation. However in the presence of biosolids in the reactor, the gas holdup raised up to 6.5%, corresponding to an increase of ca. 48% (in average, with respect to data recorded on day 0). This increase in g was attributed to both a gas entrainment effect and an impact of the bioparticles recirculated into the reactor. Under experimental conditions investigated, the gas holdup increased linearly with the air and the liquid velocities, what corresponded to the bubbly flow regime in the system. This showed that, according to investigated conditions, the impact of circulated biomass was not enough to change the bubble gas flow regime. [less ▲]

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See detailActivités de recherche du laboratoire de Chimie Analytique
Ziemons, Eric ULg; Hubert, Philippe ULg

Scientific conference (2010)

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