References of "2011"
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See detailObliged permanent pastures : main future of ruminant production in Belgium
Stilmant, Didier; Stassart, Pierre M ULg; Peeters, Pierre et al

in Grassland Science in Europe (2011), 16

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See detailProblèmes du bilinguisme dans l'Antiquité gréco-romaine
Rochette, Bruno ULg

in Genet, Jean-Philippe (Ed.) Langues et histoire. Actes du colloque de l'Ecole doctorale d'histoire de Paris 1 INHA, 20 et 21 octobre 2006 (2011)

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See detailDiscovering the lichen diversity of a remote tropical island: working list of species collected on Reunion (Mascarene archipelago, Indian Ocean)
Sérusiaux, Emmanuël ULg; van den Boom, Pieter P. G.; Brand, Maarten et al

in Herzogia (2011), 24(2), 325-349

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A ... [more ▼]

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A total of c. 600 species is estimated for the number of lichenized fungi present on the island; although this is a low figure for a varied tropi- cal area, this is plausible due to its small size and remoteness. The significance of the lichen diversity of the island lays in its endemics, which need further study for a reliable assessment, and in the occurrence of a poorly known southern hemisphere element (“austral” species). The discovery of the following in Reunion is of special interest as it considerably enlarges their distribution range: Anzia corallophora, Caloplaca caesiosorediata, Coccocarpia delicatula, Fuscopannaria praetermissa, Gomphillus morchelloides, G. pedersenii, Gyalideopsis bispora, Heterodermia koyana, Hypotrachyna evansii, Lithogyalideopsis zeylandica, Lobaria asperula, Megaloblastenia marginiflexa var. dimota, Menegazzia capitata, Myeloconis erumpens and Pannaria squamulosa. [less ▲]

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See detailX-rays nanotomography in a scanning electron microscope–capabilities and limitations for materials research
Pyka, Grzegorz; Kerckhofs, Greet ULg; Pauwels, Bart et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailMixing in two magnetic OB stars discovered by the MiMeS collaboration
Morel, Thierry ULg

in IAU Symposium 272: Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits (2011)

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See detailPost-mortem examination and laboratory-based analysis for the diagnosis of bovine tuberculosis among dairy cattle in Ecuador
Proano-Perez, F.; Benitez-Ortiz, Washington; Desmecht, Daniel ULg et al

in Preventive Veterinary Medicine (2011), 101(1-2), 65-72

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See detail2D-Vertical Model for Free Surface Incompressible Flows: Validation and Applications
Detrembleur, Sylvain; Dewals, Benjamin ULg; Pirotton, Michel ULg

in Proc. 34th IAHR World Congress - Balance and Uncertainty (2011)

Efficient design of hydraulic structures such as weirs and bottom outlets requires a detailed description of the complex turbulent flows occurring on these structures. Compared to laboratory experiments ... [more ▼]

Efficient design of hydraulic structures such as weirs and bottom outlets requires a detailed description of the complex turbulent flows occurring on these structures. Compared to laboratory experiments, numerical modeling offers more flexibility and cost-effectiveness to test different designs. The non-hydrostatic 2D-vertical model presented here solves the RANS equations for incompressible flows in the vertical plane. It is based on the projection method for pressure-velocity coupling, while free surface tracking is conducted by means of the level set technique and Sussman’s velocity extension algorithm. It enables to predict accurately the flow pattern in the vertical plane and deals with multiple interfaces (jets, drops…). The solver has been validated for both steady and unsteady free surface flows, based on theoretical and experimental data. The paper will detail the application of the model to a pressurized flow and to a sloshing tank. [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 detailLes étudiants comme usagers et co-concepteurs des dispositifs pédagogiques. Proposition d’un cadre épistémologique et d’une méthodologie d’investigation de l’usage des dispositifs de formation dans le cadre de l’alternance.
Faulx, Daniel ULg

in Maubant, Philippe; Martineau, Stéphane (Eds.) Fondements des pratiques professionnelles des enseignants. (2011)

Dans le domaine de la recherche Educatif , nous considérons en général qu'un formateur ou un programme de formation donne des instructions au sujet d'un concept de la façon dont l'apprentissage doit avoir ... [more ▼]

Dans le domaine de la recherche Educatif , nous considérons en général qu'un formateur ou un programme de formation donne des instructions au sujet d'un concept de la façon dont l'apprentissage doit avoir lieu . L'impact de l'activité des apprenants sur ces concepts ou d'autres arrangements , en revanche, n'est guère pris en compte. Toutefois , un certain nombre de courants en épistémologie , comme l'analyse de l'activité et l'approche instrumentale , ont montré que dans de nombreux domaines , les apprenants ou les utilisateurs de participer à la conception de l'apprentissage des procédures ou des matériaux qu'ils utilisent . Dès que l'on considère les étudiants comme un utilisateur (et non seulement de l'apprenant ) , il devient possible de considérer que l'utilisateur en tant que co -concepteur de procédures et / ou matériaux qui seront utilisés dans l'apprentissage, aussi longtemps que nous appliquons de manière suffisamment détaillée cadre théorique . Cette idée révolutionne l'approche traditionnelle de l'ingénierie pédagogique (ou de conception pédagogique ) dans au moins deux façons . D'une part, au lieu d'une idée générale qui sépare la phase de conception de la phase de mise en œuvre , en les considérant comme deux actions différentes impliquées dans la formation , nous avons plutôt d'avis que le design est une fonction distribuée partageable entre ceux qui participent , pendant toute la durée de la l'activité qui se passe. En d'autres termes encore , au lieu de différencier les « activités » créatrice de la part d'un étudiant et « activité » réactive de la part de l'étudiant , il suffit de visualiser le stagiaire comme une personne participant à la conception . Sur la base de cette approche , soutenue par un cadre méthodologique fondée sur la psychologie cognitive , ainsi que les résultats de la recherche dans les systèmes de psychologie et du travail concernant la créativité et la dynamique de groupe , nous avons conçu un programme original et la méthode d'enquête , fondé sur une métaphore de base de la verbalisation de l'activité de conception, telle qu'elle est exercée par l'étudiant . Afin d'illustrer cette construction théorique et méthodologique , une action de recherche est présenté . L'analyse des résultats est basée sur une méthode d' analyse de contenu thématique et permet de discuter des orientations pour le développement méthodologique et pracxeological de ce cadre théorique et méthodologique . [less ▲]

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See detailThe Use of Phages and Aptamers as Alternatives to Antibodies in Medical and Food Diagnostics.
Mehta, Jaytry; Van Dorst, Bieke; Devriese, Lisa et al

in Komorowska, Malgorzata Anna; Olsztynska-Janus, Sylwia (Eds.) Biomedical Engineering, Trends, Research and Technologies (2011)

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See detailDensity functional theory beyond the linear regime: Validating an adiabatic local density approximation
Helbig, N.; Fuks, J. I.; Casula, M. et al

in Physical Review. A (2011), 83

We present a local density approximation (LDA) for one-dimensional (1D) systems interacting via the soft-Coulomb interaction based on quantum Monte Carlo calculations. Results for the ground-state ... [more ▼]

We present a local density approximation (LDA) for one-dimensional (1D) systems interacting via the soft-Coulomb interaction based on quantum Monte Carlo calculations. Results for the ground-state energies and ionization potentials of finite 1D systems show excellent agreement with exact calculations obtained by exploiting the mapping of an N-electron system in d dimensions onto a single electron in N×d dimensions, properly symmetrized by the Young diagrams. We conclude that 1D LDA is of the same quality as its three-dimensional (3D) counterpart, and we infer conclusions about 3D LDA. The linear and nonlinear time-dependent responses of 1D model systems using LDA, exact exchange, and the exact solution are investigated and show very good agreement in both cases, except for the well-known problem of missing double excitations. Consequently, the 3D LDA is expected to be of good quality beyond the linear response. In addition, the 1D LDA should prove useful in modeling the interaction of atoms with strong laser fields, where this specific 1D model is often used. [less ▲]

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See detailSex and PRNP genotype determination in preimplantation caprine embryos
Guignot, F.; Perreau, C.; Cavarroc, C. et al

in Reproduction in Domestic Animals (2011), 46(4), 656-663

The objective of this study was to test the accuracy of genotype diagnosis after whole amplification of DNA extracted from biopsies obtained by trimming goat embryos and to evaluate the viability of ... [more ▼]

The objective of this study was to test the accuracy of genotype diagnosis after whole amplification of DNA extracted from biopsies obtained by trimming goat embryos and to evaluate the viability of biopsied embryos after vitrification/warming and transfer. Whole genome amplification (WGA) was performed using Multiple Displacement Amplification (MDA). Sex and prion protein (PRNP) genotypes were determined. Sex diagnosis was carried out by PCR amplification of ZFX/ZFY and Y chromosome-specific sequences. Prion protein genotype determination was performed on codons 142, 154, 211, 222 and 240. Embryos were collected at day 7 after oestrus and biopsied either immediately after collection (blastocysts and expanded blastocysts) or after 24 h of in vitro culture (compacted morulae). Biopsied embryos were frozen by vitrification. Vitrified whole embryos were kept as control. DNA of biopsies was extracted and amplified using MDA. Sex diagnosis was efficient for 97.4% of biopsies and PRNP genotyping was determined in 78.7% of biopsies. After embryo transfer, no significant difference was observed in kidding rate between biopsied and vitrified control embryos, whereas embryo survival rate was different between biopsied and whole vitrified embryos (p = 0.032). At birth, 100% of diagnosed sex and 98.2% of predetermined codons were correct. Offspring PRNP profiles were in agreement with parental genotype. Whole genome amplification with MDA kit coupled with sex diagnosis and PRNP genotype predetermination are very accurate techniques to genotype goat embryos before transfer. These novel results allow us to plan selection of scrapie-resistant genotypes and kid sex before transfer of cryopreserved embryo. [less ▲]

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See detailGanglion sentinelle et sentibras: pour un "staging" axillaire sur mesure
Cusumano, P.; BLERET, Valerie ULg; Nos, C. et al

in Revue Médicale de Liège (2011), 66(5-6), 336-40

The status of the axillary lymph nodes is one of the most important prognostic factors in women with early stage breast cancer. Histologic examination of removed lymph nodes is the most accurate method ... [more ▼]

The status of the axillary lymph nodes is one of the most important prognostic factors in women with early stage breast cancer. Histologic examination of removed lymph nodes is the most accurate method for assessing spread of disease to these nodes. Axillary lymph node dissection (ALND) remains the standard approach for women who have clinically palpable axillary nodes. The benefits of ALND include its impact on disease control (axillary recurrence and survival), its prognostic value, and its role in treatment selection. However, the anatomic disruption caused by ALND may result in lymphedema, nerve injury, and shoulder dysfunction, which compromise functionality and quality of life. For patients who have clinically negative axillary lymph nodes, sentinel lymph node (SLN) biopsy offers a less morbid method to determine if there are positive nodes, in which case axillary node dissection would be necessary. Patients who are SLN-positive should undergo complete ALND. Axillary reverse mapping (ARM) is a recent improvement of ALND which, like the biopsy of the GS, would reduce morbidity. [less ▲]

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See detailArsenic-doped Ge-spiked monoemitter SiGe:C HBTs by means of low-temperature trisilane based epitaxy
You, Shuzhen; Decoutere, Stefaan; Nguyen, Ngoc Duy ULg et al

Conference (2011)

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See detailCan environmental and socio-economic factors explain the recent emergence of Rift Valley Fever in Yemen, 2000-2001?
Abdo-Salem, S.; Tran, A.; Grosbois, V. et al

in Vector Borne & Zoonotic Diseases (2011), 11

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See detailEtude des interactions membranaires de dérivés de l’acide glucuronique par calorimétrie à titrage isotherme
Laurent, Pascal ULg; Razafindralambo, Hary ULg; Paquot, Michel ULg

Poster (2011)

Dans le cadre de la valorisation de la biomasse et des glucides provenant de l’hydrolyse de matières premières renouvelables, différents dérivés d’acides uroniques ont été synthétisés en vue d’évaluer ... [more ▼]

Dans le cadre de la valorisation de la biomasse et des glucides provenant de l’hydrolyse de matières premières renouvelables, différents dérivés d’acides uroniques ont été synthétisés en vue d’évaluer leurs propriétés en tant qu’agents tensioactifs biocompatibles et biodégradables. Une nouvelle stratégie de synthèse assistée par micro-ondes, efficace et respectueuse de l'environnement, a par ailleurs permis de synthétiser quantitativement différentes D-glucofuranosidurono-6,3-lactones monosubstituées hydrosolubles au départ d'acide D-glucuronique non protégé en utilisant un catalyseur acide supporté. Ces lactones appartiennent à la famille des glycosurfactants non-ioniques dont les applications couvrent un vaste domaine, aussi bien dans l’industrie pharmaceutique, cosmétique ou alimentaire. Une première approche en vue d’évaluer leurs activités biologiques consiste en l’étude des paramètres d’interactions moléculaires de ces lactones vis-à-vis d’une membrane biologique modèle (1-palmitoyl-2-oleyl-sn-glycerol-3-phosphatidylcholine) par calorimétrie à titrage isotherme (Isothermal Titration Calorimetry – ITC). [less ▲]

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See detailThe Pbx Interaction Motif of Hoxa1 Is Essential for Its Oncogenic Activity
Delval, Stéphanie; Taminiau, Arnaud; Lamy, Juliette et al

in PLoS ONE (2011), 6(9), 2547

Hoxa1 belongs to the Hox family of homeodomain transcription factors involved in patterning embryonic territories and governing organogenetic processes. In addition to its developmental functions, Hoxa1 ... [more ▼]

Hoxa1 belongs to the Hox family of homeodomain transcription factors involved in patterning embryonic territories and governing organogenetic processes. In addition to its developmental functions, Hoxa1 has been shown to be an oncogene and to be overexpressed in the mammary gland in response to a deregulation of the autocrine growth hormone. It has therefore been suggested that Hoxa1 plays a pivotal role in the process linking autocrine growth hormone misregulation and mammary carcinogenesis. Like most Hox proteins, Hoxa1 can interact with Pbx proteins. This interaction relies on a Hox hexapeptidic sequence centred on conserved Tryptophan and Methionine residues. To address the importance of the Hox-Pbx interaction for the oncogenic activity of Hoxa1, we characterized here the properties of a Hoxa1 variant with substituted residues in the hexapeptide and demonstrate that the Hoxa1 mutant lost its ability to stimulate cell proliferation, anchorage-independent cell growth, and loss of contact inhibition. Therefore, the hexapeptide motif of Hoxa1 is required to confer its oncogenic activity, supporting the view that this activity relies on the ability of Hoxa1 to interact with Pbx. [less ▲]

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See detailAnalyse des potentialités d'accueil du lynx boréal (Lynx lynx) dans l'est de la province de Liège (Belgique)
Thiry, Violaine; Schockert, Vincianne ULg; Libois, Roland ULg et al

in Rosoux, René; de Bellefroid, Marie des Neiges; Baillon, Jacques (Eds.) et al Lynx... le grand retour ? (2011)

The fist lynx were seen in eastern Belgium at the end of the 1990s. Since then, both sightings and tracks have been recorded there and in the Ardenne (south east Belgium). Whether this presence indicates ... [more ▼]

The fist lynx were seen in eastern Belgium at the end of the 1990s. Since then, both sightings and tracks have been recorded there and in the Ardenne (south east Belgium). Whether this presence indicates a spontaneous return of individuals deriving from the population reintroduced in Germany or results from illicit releases, it raises the question of the suitability and the carrying capacity of habitats in an area of dense human occupation. Using two software programs, a mapping model to assess habitat characterization, drawn from relevant criteria for this species, was tested to estimate the potential host of the study area, via the determination of areas of suitable habitats, and the dispersion potential of the species, through the identification of the most viable dispersal corridors. The findings of the study (multi criteria analysis of potential host of habitats, identification of corridors of lowest cost, estimation of the potential population...), compiled on the basis mapping model and simulations, suggest that a return of the lynx in Wallonia may be sustainable if supported and managed wisly by the regional administrative services. [less ▲]

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