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See detailAsk the Periphery – a vantage point for understanding city and nationalism relations
Farah, Jihad ULg; Teller, Jacques ULg

Conference (2012, February)

Studies on nationalism were often interested with the city, especially the city centers. The politics of heritage, the architecture of public buildings and the design and use of central public spaces are ... [more ▼]

Studies on nationalism were often interested with the city, especially the city centers. The politics of heritage, the architecture of public buildings and the design and use of central public spaces are often studied in relation to national identity politics. Municipal politics of the historical city in the face of central authorities’ urban politics is also frequently approached in the light of Nation-State building issues. If no doubt the consideration of city centers as a vantage point for understanding the relation between nationalism and the city is an interesting one that bore many fruits, we believe that a vantage point concentrating on the peripheries can highly contribute in unveiling other aspects of this relation. This paper aims at investigating the potentialities of this contribution. As the place where urbanization is taking place, the periphery is: - Where the national identity construction logic is put to test. First because, historically, it is here where the confrontation between the urban and the rural did first take place. Second, because rural exodus and migration, usually more important in the periphery, will continue to challenge it. - Where the city and the hinterland get connected through different national territory building networks. - Where the Nation-State central authorities will find the largest land reserves to develop their large emblematic projects. - Where urban fragmentation poses the strongest challenge to the unitarian message of nationalism, but also is where some nationalist movements might best develop In fact, the periphery represents equally a fertile ground for nationalism and for resistances to it. This paper will rely on the city of Beirut as a case study. [less ▲]

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See detailAnalyse de la position en 3 dimensions : intérêts pour la posturologie
Schwartz, Cédric ULg

Conference (2012, January 29)

Detailed reference viewed: 145 (38 ULg)
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See detailL'entreprise sociale en Asie Orientale
Defourny, Jacques ULg

Conference (2012, January 27)

Detailed reference viewed: 37 (2 ULg)
See detailUn nouveau gouvernement, une première réforme fiscale : point en janvier 2012
Richelle, Isabelle ULg

Conference (2012, January 26)

Organisation d’un Colloque sur « Un nouveau gouvernement, une première réforme fiscale : le point en janvier 2012 », Académie Royale de Belgique, Bruxelles, 26 janvier 2012, organisation du Tax Institute ... [more ▼]

Organisation d’un Colloque sur « Un nouveau gouvernement, une première réforme fiscale : le point en janvier 2012 », Académie Royale de Belgique, Bruxelles, 26 janvier 2012, organisation du Tax Institute de l’ULg. Direction de la Table ronde. [less ▲]

Detailed reference viewed: 23 (8 ULg)
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Peer Reviewed
See detailMicrostructure and mechanical properties of stir processed magnesium matrix composites reinforced with carbon fibres
Simar, Aude; Mertens, Anne ULg; Montrieux, Henri-Michel ULg et al

Conference (2012, January 26)

Mg-Al-Zn alloys have been reinforced with carbon fibres using friction stir processing (FSP) which appears as a promising alternative for the large-scale production of C-Mg composites. The process has ... [more ▼]

Mg-Al-Zn alloys have been reinforced with carbon fibres using friction stir processing (FSP) which appears as a promising alternative for the large-scale production of C-Mg composites. The process has shown its ability to produce sound composites with enhanced strength compared to the non-reinforced alloys. The C fabric is fragmented in short fibres leading to a reduction in grain size and an improved hardness. [less ▲]

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See detailLe paysage institutionnel de l'enseignement supérieur en Belgique: l'état du projet du Ministre Marcourt à la date du colloque et les positions en présence.
Verjans, Pierre ULg

Conference (2012, January 26)

Le projet de restructuration de l'enseignement supérieur impulsé à la suite de l'accord gouvernemental 2009-2014 en Communauté française de Belgique inclut à la fois une structure faîtière unique, l ... [more ▼]

Le projet de restructuration de l'enseignement supérieur impulsé à la suite de l'accord gouvernemental 2009-2014 en Communauté française de Belgique inclut à la fois une structure faîtière unique, l'Académie de Recherche et à la fois des pôles géographiques d'organisation de l'enseignement supérieur. La communication tente de décrire quelle est la stratégie ministérielle et quelles sont les réactions institutionnelles. [less ▲]

Detailed reference viewed: 78 (5 ULg)
See detailLa ville à l'heure des contraintes énergétiques
Reiter, Sigrid ULg

Conference (2012, January 26)

Detailed reference viewed: 9 (1 ULg)
See detailHypertriglycéridémie et rein
Krzesinski, Jean-Marie ULg

Conference (2012, January 24)

Detailed reference viewed: 17 (3 ULg)
See detailChoix des biomatériaux dans la régénération osseuse alvéolaire.
LAMBERT, France ULg

Conference (2012, January 21)

L’utilisation de biomatériaux dans la régénération osseuse alvéolaire est aujourd’hui incontournable au vu des évidences scientifiques et de la morbidité liée aux techniques de greffes osseuses autologues ... [more ▼]

L’utilisation de biomatériaux dans la régénération osseuse alvéolaire est aujourd’hui incontournable au vu des évidences scientifiques et de la morbidité liée aux techniques de greffes osseuses autologues. Cependant, une multitude de biomatériaux, ayant des caractéristiques physico-chimiques et des origines différentes, sont disponibles sur le marché. Leur influence sur l’ostéogénèse, ainsi que leur comportement à court et long terme sont souvent mal connus des praticiens. Le but de cet exposé est de clarifier les propriétés des biomatériaux les plus utilisés en médecine dentaire, ainsi que de déterminer leurs indications et leurs limitations cliniques. [less ▲]

Detailed reference viewed: 21 (2 ULg)
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See detailL’histoire des sciences au carrefour des sources et des méthodes.
Vandersmissen, Jan ULg

Conference (2012, January 19)

Detailed reference viewed: 646 (9 ULg)
See detailL’innovation managériale par et pour l’organisation ?
Pichault, François ULg

Conference (2012, January 19)

Detailed reference viewed: 54 (2 ULg)
Peer Reviewed
See detailA validation and learning process for CFD simulations of buildings (Keynote speaker)
Reiter, Sigrid ULg

Conference (2012, January 15)

Detailed reference viewed: 20 (3 ULg)
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Peer Reviewed
See detailA modified economic-statistical design of the VP multivariate control charts
SEIF, Asghar; Faraz, Alireza ULg

Conference (2012, January 15)

Hotelling’s T2 control chart is one of the most popular multivariate control charts for monitoring multiple variables simultaneously. Recent studies have shown that applying the T2 control chart by using ... [more ▼]

Hotelling’s T2 control chart is one of the most popular multivariate control charts for monitoring multiple variables simultaneously. Recent studies have shown that applying the T2 control chart by using a variable parameters (VP) scheme yields more rapid detection of assignable causes than the classical method of taking fixed sample sizes at fixed intervals of time. This paper presents an economic-statistical design (ESD) of the VP T2 control chart using the general model of Lorenzen and Vance. The genetic algorithm (GA) is then employed to search for the optimal values of the eight test parameters of the chart. Furthermore, VP and FRS schemes are compared with respect to the expect cost per unit time. [less ▲]

Detailed reference viewed: 44 (3 ULg)
See detailOn being enrolled as an "embedded humanist" with nanotechnologists
Thoreau, François ULg

Conference (2012, January 13)

Detailed reference viewed: 33 (1 ULg)
See detailPréserver plutôt que reconstruire
LAMBERT, France ULg

Conference (2012, January 13)

Chacun d’entre nous est familier avec la résorption typique de la crête alvéolaire après l’extraction d’une dent et particulièrement dans le secteur esthétique. Cette perte de tissus, entraîne fréquemment ... [more ▼]

Chacun d’entre nous est familier avec la résorption typique de la crête alvéolaire après l’extraction d’une dent et particulièrement dans le secteur esthétique. Cette perte de tissus, entraîne fréquemment la nécessité de reconstructions tissulaires élaborées afin de restaurer la ou les dents extraite(s). Cet exposé vise à évaluer le bénéfice des gestions des alvéoles d’extraction avec l’utilisation de biomatériaux et de la chirurgie muquo-gingivale, afin de limiter les pertes tissulaires post- extractionnelles. Les principes biologiques de ce protocole seront décrits par le biais des résultats des études cliniques réalisées au seins de notre université, et illustré par des cas cliniques. [less ▲]

Detailed reference viewed: 5 (0 ULg)
See detailQuels modèles de mesure pour l’évaluation des compétences ?
Burton, Réginald; Flieller, André; Frenette, Eric et al

Conference (2012, January 12)

De plus en plus de dispositifs d’évaluation (évaluation formative, monitoring, épreuves d’orientation scolaire, …) ont recours aux Modèles de Réponse à l’Item pour estimer les compétences scolaires des ... [more ▼]

De plus en plus de dispositifs d’évaluation (évaluation formative, monitoring, épreuves d’orientation scolaire, …) ont recours aux Modèles de Réponse à l’Item pour estimer les compétences scolaires des élèves au départ de tests papier-crayon ou d’épreuves proposées sur ordinateur. Ces modèles de mesure – dont les propriétés laissaient entrevoir des progrès et des avantages considérables – se sont d’abord imposés comme standards de référence dans les enquêtes internationales pour être ensuite transposés dans des contextes locaux, notamment pour l’évaluation externe des compétences des élèves. Cependant, la technicité des MRI, leur nature stochastique et leurs composantes statistiques relativement complexes n’ont pas toujours permis une approche cartésienne et prudente de leur exploitation. On a cru pendant longtemps que la transposition de ces modèles à l’évaluation des compétences était naturelle et ne souffrait d’aucun obstacle fondamental. Mais les objectifs, les caractéristiques et les exigences de l’évaluation des compétences sont parfois bien éloignés des préoccupations internationales. Nous nous proposons donc, au départ des résultats empiriques et/ou des réflexions théoriques des intervenants de la table ronde, de déterminer dans quelles conditions l’application des MRI à l’évaluation des compétences est pertinente? Dans cette perspective, plusieurs critères d’analyse seront envisagés : la nature théorique des modèles (les MRI sont-ils adaptés pour atteindre les objectifs des dispositifs d’évaluation des compétences?), les caractéristiques psychométriques des évaluations (les conditions d’application des MRI sont-elles toujours remplies dans le cadre des évaluations de compétences?) et les méthodes de validation des modèles (les méthodes pour évaluer l’adéquation des modèles sont-elles adaptées à l’évaluation des compétences?). Pour ne pas conclure, les intervenants s’interrogeront sur l’opportunité de développer de nouveaux modèles de mesure pour l’évaluation des compétences. Trois questions principales structureront les échanges : Question 1: Quelles sont les caractéristiques psychométriques des dispositifs d’évaluation des compétences ? Question 2: Les Modèles de Réponse à l’Item sont-ils adaptés pour évaluer les compétences ? Question 3: Est-il opportun de développer de nouveaux modèles pour l’évaluation des compétences ? Si oui, quelles devraient en être les caractéristiques ? [less ▲]

Detailed reference viewed: 126 (20 ULg)
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See detailGeoelectrical investigations (DC) on a contaminated site during biostimulation: monitoring results and resolution analysis
Caterina, David ULg; Nguyen, Frédéric ULg

Conference (2012, January 12)

In Belgium, as in many other countries, relatively anarchic economical and industrial development of the past century has resulted in a significant number of contaminated sites. When one of these sites ... [more ▼]

In Belgium, as in many other countries, relatively anarchic economical and industrial development of the past century has resulted in a significant number of contaminated sites. When one of these sites poses a risk to human or ecosystem, measures need to be taken to clean it up. Among these measures, methods using in situ bioremediation are beginning to become more important because of their ease of implementation and their relatively low cost. However, it is often difficult to ensure their effectiveness except by carrying out extensive drilling and sampling, which can be long and expensive while offering only punctual information. Thus, it becomes necessary to use other techniques to overcome these shortcomings. Recently, an increasing interest is being born to use geophysical methods as tools for remediation monitoring. As part of our work, we conducted several electrical resistivity tomography campaigns on a bus station located in Bassenge (Belgium) which has undergone a contamination of hydrocarbons (gasoline) for several years and on which a biostimulation remediation device was set up in order to clean it up. The aim of our investigations was to study the electrical response of the contaminated area during the remediation phase and whether electrical resistivity tomography allowed to monitor its effectiveness. After a year of monitoring, the time lapse images obtained show a significant decrease of electrical resistivities (up to -40%) during biostimulation at the location of the main contaminant plume and an increase again of resistivities from the time the biostimulation was stopped. The electrical response during the biostimulation is in agreement with the models presented by several authors in the literature. The increase again of resistivities after the stimulation is however more surprising and can be explained by several physico-chemical (sorption-desorption processes) or biological (decrease of conductive biofilms) assumptions. The results obtained tend to suggest that it is possible to use electrical resistivity tomography as a tool for qualitative control during the remediation of a contaminated site. However, for a more quantitative use of resistivity models, it is important to assess their reliability through the use of resolution indicators. We therefore developed a methodology to address this issue based on the creation of synthetic models representing simplified cases of field resistivities and we applied it on our case study. The results obtained provided us important information about the reliable parts of the resistivity models. These findings may lead in the future to the development of mathematical models that can link quantitatively geophysical properties to the level of (de)contamination of a site. [less ▲]

Detailed reference viewed: 54 (12 ULg)
See detailConclusions de la journée d'étude "Socialisation et création littéraire"
Saint-Amand, Denis ULg; Lahire, Bernard

Conference (2012, January 12)

Detailed reference viewed: 26 (3 ULg)
Peer Reviewed
See detailThat's not my job! Job control, safety citizenship and safety violations.
Chmiel, Nik; Hansez, Isabelle ULg

Conference (2012, January 12)

Detailed reference viewed: 22 (3 ULg)
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See detailUpdate on laboratory diagnosis of acute viral gastroenteritis.
HUYNEN, Pascale ULg

Conference (2012, January 12)

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailgender issues in ISRD survey
Gavray, Claire ULg

Conference (2012, January 11)

Detailed reference viewed: 19 (6 ULg)
See detailL’État burkinabè, le “droit à l'éducation” et les enfants au travail
Wouango, Joséphine ULg

Conference (2012, January 05)

« L’enseignement de base est obligatoire pour tous les enfants de six ans à seize ans », ainsi stipule l’article 4 de la Loi d’Orientation de l’Éducation au Burkina Faso. Dans cette communication, nous ... [more ▼]

« L’enseignement de base est obligatoire pour tous les enfants de six ans à seize ans », ainsi stipule l’article 4 de la Loi d’Orientation de l’Éducation au Burkina Faso. Dans cette communication, nous partirons d’une expérience d’offre et de demande scolaire dans une zone rurale du centre-est du Burkina Faso. Nous verrons comment l’école, de par son fonctionnement interne et sa structuration, a transformé l’engouement en désaffection. Cette expérience rurale n’est pas isolée. Elle nous permet ensuite d’interroger le système scolaire burkinabè contemporain : ses curricula, son fonctionnement interne, sa sélection et sa finalité. Enfin, nous examinerons dans quelle mesure cette école-là peut être une alternative au “travail des enfants”, dont l’élimination semble être une priorité politique depuis une quinzaine d’années. La présente communication s’inspire d’une recherche doctorale en cours. [less ▲]

Detailed reference viewed: 18 (1 ULg)
See detailContribution of GC×GC-TOFMS to tobacco analysis
Brokl, Michal ULg; Bishop; Liu et al

Conference (2012, January)

Detailed reference viewed: 10 (0 ULg)
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See detailStudy of 2-Ethanolamine degradation
Léonard, Grégoire ULg; Toye, Dominique ULg; Heyen, Georges ULg

Conference (2012, January)

One major drawback of the post-combustion CO2 capture using conventional amine solvents is solvent degradation, which can be due to thermal as well as oxidative mechanisms. Degradation affects the CO2 ... [more ▼]

One major drawback of the post-combustion CO2 capture using conventional amine solvents is solvent degradation, which can be due to thermal as well as oxidative mechanisms. Degradation affects the CO2 capture process since it may cause corrosion, foaming and fouling, possibly inducing a decrease of the solvent efficiency and high additional operating costs due to solvent replacement. In order to study degradation of conventional amine solvents as well as degradation of novel solvents, a degradation test rig has been built at the University of Liège in collaboration with the company Laborelec, member of the GDF SUEZ group. Since degradation generally occurs within a few months in real plant conditions, this equipment has been designed to allow the study of different degradation mechanisms under accelerated conditions, at high temperatures (up to 140°C) and high partial pressures in oxygen and CO2 (total pressure up to 20 bar with varying gas composition). An advantage of this degradation test rig is that it can be used in batch as well as in semi-batch mode with constant gas flow. High gas-liquid contact efficiency is also ensured thanks to a mechanical agitation system combined with gas bubbling. For a typical run, 300g of aqueous amine solution (30 wt % MEA in water) is introduced into the reactor and degraded during two weeks. The degraded solutions are then analysed using high pressure liquid chromatography (HPLC) for MEA quantification and gas chromatography with flame ionization detector (GC-FID) for the characterization of degradation products. The gas phase is analysed by Fourier Transform Infra Red spectroscopy. The final objective of this work is to implement the data obtained from experimental results on the degradation test rig into an existing simulation model that has been developed based on an existing pilot plant. [less ▲]

Detailed reference viewed: 224 (1 ULg)
See detailTitan airglow: FUV and EUV 2009 UVIS spectra of airglow during day, night and eclipse
Ajello, J.M.; Stevens, M.; West, R. et al

Conference (2012, January)

Detailed reference viewed: 2 (0 ULg)
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Peer Reviewed
See detailHigher-Moment Risk Exposures in Hedge Funds
Lambert, Marie ULg; Hübner, Georges ULg; Papageorgiou, Nicolas

Conference (2012, January)

Detailed reference viewed: 13 (2 ULg)
See detailHeisenberg-limited metrology without entanglement
Braun, Daniel; Martin, John ULg

Conference (2012, January)

Detailed reference viewed: 14 (2 ULg)
Peer Reviewed
See detailOverview of the S-adic conjecture
Leroy, Julien ULg

Conference (2012, January)

Detailed reference viewed: 5 (0 ULg)
See detailDans quelles conditions l’évaluation des compétences par ordinateur est-elle valide et fiable ?
Detroz, Pascal ULg

Conference (2012, January)

Avec les avenues qu’offre le Web2.0, le processus d’évaluation des apprentissages en éducation/formation pourrait subir des transformations auxquelles on n’osait penser il y a très peu de temps. Il est ... [more ▼]

Avec les avenues qu’offre le Web2.0, le processus d’évaluation des apprentissages en éducation/formation pourrait subir des transformations auxquelles on n’osait penser il y a très peu de temps. Il est ainsi fort possible que la contribution humaine à ce processus soit toute autre que celle que les étudiants du XXe siècle ont connue. Mais ces transformations à venir du processus d’évaluation et de ses objets signifient-elles qu’il y aura un prix à payer en termes de validité et de fidélité ? Ainsi, l’entrée en jeu de nouveaux outils pour observer et recueillir des données sur les compétences développées pose des défis particuliers parce que dans une approche par compétence ce qui doit être évalué diffère passablement de ce qui est valorisé lorsque les seules connaissances sont visées. L’effervescence observée à cet égard est ainsi une bonne occasion pour faire le point sur ce qu’il est possible de faire pour évaluer des compétences en utilisant l’ordinateur (i.e. les TIC) et sur la validité et la fidélité du processus d’évaluation dans ce contexte. [less ▲]

Detailed reference viewed: 44 (6 ULg)
See detailGestion de la diversité: nouveaux enjeux
Cornet, Annie ULg

Conference (2012, January)

Detailed reference viewed: 42 (2 ULg)
See detailAnalysis of synthetic canine training aids GCxGC-TOFMS
Stadler; Forbes; Focant, Jean-François ULg

Conference (2012, January)

Detailed reference viewed: 11 (1 ULg)
See detailDerivation of the Maxwell-Boltzmann distribution by discrete modeling
Pfleger, M; Wallek, T; Pfennig, Andreas ULg

Conference (2012)

Detailed reference viewed: 12 (0 ULg)
See detailLe vallon synclinal de Sprimont à Chanxhe (Vallée de l’Ourthe)
Briffoz, Albert; Willems, Luc ULg

Conference (2012)

Plan du synclinal calcaire de Sprimont et principales pertes Les calcaires carbonifères constituant le centre du synclinal absorbent en des pertes (chantoires) tous les ruisseaux du vallon qui sont issus ... [more ▼]

Plan du synclinal calcaire de Sprimont et principales pertes Les calcaires carbonifères constituant le centre du synclinal absorbent en des pertes (chantoires) tous les ruisseaux du vallon qui sont issus des grès famenniens. Ces pertes subissent un recul vers l’amont des vallons secondaires comme l’ont montré différentes études (R. Michel, C.Ek et al.) Les pertes, si elles sont maintenues ouvertes, évitent des inondations au long du vallon. Certaines furent aménagées aussi utilement pour les excédents de pluies à la route de la Préalle, au drainage du terrain de football à Tultay, et au Vieux Bac. Recherches Dès 1960, le Club de Recherches Spéléologiques Ourthe Amblève (CRSOA) a prospecté et désobstrué 10 grottes et gouffres ainsi que deux pertes (chantoires) devenues pour la première fois accessibles à l’homme. Parmi les réseaux découverts, celui d’Enfer-Fissures présente un développement connu de 979 m pour un dénivelé de 57 m. Le gouffre Persévérance atteint les 90 mètres de profondeur et donne un accès à un petit écoulement souterrain qui se perd dans les profondeurs du réseau. Le CRSOA a coloré 5 fois des pertes et dosé une restitution à la résurgence des eaux au Lac Bleu. La section d’écoulement naturel souterrain à l’approche de Chanxhe s’élève à 8 m2 soit plus de 10 fois la section d’écoulement de l’égouttage en voirie vers Chanxhe. Résurgence du Lac Bleu La résurgence du Lac Bleu est la seule sortie d’eau connue à ce jour drainant les eaux souterraines du synclinal de Sprimont. En surface, elle forme un petit étang lié à la construction d’une digue. Ces travaux avaient été réalisés afin de capter les eaux de la résurgence pour actionner une roue à aubes. [less ▲]

Detailed reference viewed: 349 (7 ULg)
See detailUse colloidal nanocrystals for Li ion battery on the way to 3D architectured electrodes
Krins, Natacha ULg; Buonsanti, Raffaella; Richardson, Thomas J. et al

Conference (2012)

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailDetecting consciousness with voluntary control of sniffing
Charland-Verville, Vanessa ULg; Lesenfants, Damien; Sela, Lee et al

Conference (2012)

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See detailFN et médias, les noces de perle: une révision des termes du contrat
Devresse, Jenifer ULg

Conference (2012)

L’année 2012 marque un double anniversaire: 40 ans d’existence du Front National (FN) français, 30 ans d’existence médiatique. Cette communication tente de montrer en quoi la communication du FN paraît ... [more ▼]

L’année 2012 marque un double anniversaire: 40 ans d’existence du Front National (FN) français, 30 ans d’existence médiatique. Cette communication tente de montrer en quoi la communication du FN paraît particulièrement bien adaptée aux logiques médiatiques. Il s’agit de réévaluer le « contrat de mariage » FN/médias à la lumière des évolutions récentes qui ont affecté leurs relations depuis que Marine Le Pen a repris le flambeau, de manière à éclairer, plus généralement, les conditions médiatiques d’existence des partis dits « populistes ». J’évoquerai les mutations récentes de la communication du FN, sur le plan des discours et des relations avec les journalistes, avant d’aborder l’évolution concomitante du traitement médiatique de Marine Le Pen. À partir de là sera posée la question de la diffusion des idées frontistes dans l’espace médiatique, envisagée comme le produit d’une interaction entre les instances politique, médiatique et citoyenne – l’ « opinion publique » saisie par les sondages. Je tâcherai alors de faire le point sur les différentes logiques médiatiques qui tendent à valoriser le parti, avant de conclure par quelques considérations sur les défis que représentent pour les journalistes les métamorphoses actuelles du FN. [less ▲]

Detailed reference viewed: 76 (22 ULg)
Peer Reviewed
See detailEinfluss eines PER3 Polymorphismus auf die zirkadiane und schlafhomöostatische Regulation von Aufmerksamkeit, subjektiver Müdigkeit und Nickerchen.
Maire, Micheline; Reichert, Carolin; Gabel, Virginie et al

Conference (2012)

Detailed reference viewed: 14 (0 ULg)
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Peer Reviewed
See detailMultiscale modelling of cohesive-frictional materials: from textured to random materials
Massart, T.J.; Sonon, B.; Mercatoris, Benoît ULg et al

Conference (2012)

Detailed reference viewed: 22 (1 ULg)
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See detailENMG de l'épaule douloureuse
WANG, François-Charles ULg

Conference (2012)

Detailed reference viewed: 30 (3 ULg)
Peer Reviewed
See detailInference and comparison of different genetic stratification techniques
Maus, Bärbel ULg; Génin, Emmanuelle; Mahachie John, Jestinah ULg et al

Conference (2012)

Detailed reference viewed: 7 (2 ULg)
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See detailPhysical Activity Promotion In Overweight/Obese Children. A Project Implemented In A Hospital Context
Cloes, Marc ULg; Dewandre, Anne-Cécile; LEBRETHON, Marie-Christine ULg

Conference (2012)

BACKGROUND. Overweight and obesity in youth must be combated through a multiple approach combining management principles in nutrition and physical activity (PA). In the hospital context, medical staff ... [more ▼]

BACKGROUND. Overweight and obesity in youth must be combated through a multiple approach combining management principles in nutrition and physical activity (PA). In the hospital context, medical staff seems to be more focused on nutrition. AIM. In this study, we proposed to implement a specific intervention focusing on PA in parallel with traditional paediatric and dietetic visits designed to 6-12 year-old children. METHODS. Data were collected in three steps: (1) after a visit at the hospital, subjects and their parents answered to a questionnaire (lifestyle, representation about PA) and attended to a meeting during which they received written (illustrated booklet) and oral cues about PA as well as an invitation to use a PA diary and a pedometer; (2) before the next visit (almost 8 weeks interval), they were free to apply the recommendations; (3) after the next visit to the hospital, subjects analyzed the diary with one of the researchers and answered to questions about their current lifestyle and representations about PA. 34 children respected the whole protocol. FINDINGS. Among the children and their parents, representations of PA changed between the visits (PA was no longer regarded merely as sport). Major changes were also identified in children’s lifestyle (increase of number of weekly PA, family PA, weekly PA time; decrease of inactivity time like TV or video games). Only 27 children out of 34 used the PA diary at least once (information were recorded for a mean of 18 days/child between the 2 visits – a third of the duration of the interval). The pedometer has been used by 15 children and was considered as a motivating tool. 58.5% of comments collected at the end of the second meeting were positive and emphasized the interest of the intervention; 24.6% were negative and mainly focused the PA diary). DISCUSSION. This study underlines the need to improve the family's representations about PA in paediatric and dietetic visits. It supports PA experts' integration in the staff. [less ▲]

Detailed reference viewed: 55 (9 ULg)
See detailBedside Detection of Awareness in the Vegetative State
Chatelle, Camille ULg

Conference (2012)

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailGlobal analysis of gene expression in the skin of mice after a 92 days journey in microgravity.
Neutelings, Thibaut ULg; Liu, Y.; Cancedda, R et al

Conference (2012)

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See detailA Simplified and Optimized Novel Design of RDC-Columns
Aksamija, E; Prieler, R J; Zörweg, K et al

Conference (2012)

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See detailQuelles Spécificités dans la Gestion des PME de l'Industrie du Luxe? Un Essai de Modélisation
Riguelle, France ULg; Van Caillie, Didier ULg

Conference (2012)

This paper aims at proposing an integrated model of the performance management of SME's of the luxury industry through the organization of key success factors (KSF) identified in a critical sample of the ... [more ▼]

This paper aims at proposing an integrated model of the performance management of SME's of the luxury industry through the organization of key success factors (KSF) identified in a critical sample of the existing literature. The model is constructed on a basis of the Porter's value chain (1998) and the resource-based theory (Wernefelt, 1984; Berney, 1991) that helps to identify the critical resources and their deployment through the SME's value chain that lead to manage the identified KSF. [less ▲]

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See detailBrucellosis in marine mammals stranded on the Belgian and northern France coast
Jauniaux, Thierry ULg; Brenez, C.; Fretin, D. et al

Conference (2012)

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See detailA new Devonian flora in Argentina: palaeobotanical and stratigraphic implications
Prestianni, C.; Rustan, J. J.; Vaccan, N. E. et al

Conference (2012)

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See detailRapamycin prevents experimental sclerodermatous chronic graft-versus-host disease in mice
Belle, Ludovic ULg; Binsfeld, Marilène ULg; DUBOIS, Sophie ULg et al

Conference (2012)

Background: The most widely used mice model of chronic graft-versus-host disease (cGvHD) is an MHC-matched bone marrow transplantation model of sclerodermatous cGvHD. A limitation of that model is that ... [more ▼]

Background: The most widely used mice model of chronic graft-versus-host disease (cGvHD) is an MHC-matched bone marrow transplantation model of sclerodermatous cGvHD. A limitation of that model is that mortality is relatively low, making difficult to study the impact of potentially therapeutic compounds. Aims: To develop a more severe model of cGVHD and to assess the impact of Rapamycin administration in that model. Results: Lethally irradiated Balb/C mice were injected with 10x106 bone marrow cells and 70x106 splenocytes from B10.D2 donor mice. Twenty-one days later, all mice developed cGvHD. For the severe model, donor B10.D2 mice were injected with 0.5x106 splenocytes from Balb/C twenty-one days before transplantation. All mice from the severe model (n=8) died a median of 32 days while 3 of 7 mice in the classical model survived beyond day 52. Mean survival was decreased in the severe model compared to the classical model (32 days versus 37 days; p=0.0185). Recipient mice in the severe group experienced higher weight loss, hair loss and skin fi brosis. Numbers of T lymphocytes (231.9 ± 151.4 versus 951 ± 532.8; p=0.0032) and CD4+ T cells (63.25 ± 41.93 versus 135.0 ± 14.39; p=0.0018) per microliter of blood at day 21 were lower in the severe group than in the classical model. Moreover, number of regulatory T cells (Tregs) was decreased in the severe model (1.250 ± 0.8864 versus 8.000 ± 6.753; p=0.0151). We then investigated whether rapamycin administration could prevent GVHD in the severe model. All (n=8) mice treated with PBS (placebo) died a median of 32 days after transplantation, while 6 of 8 mice given 1 mg/kg/day i.p. rapamycin survived beyond day 52 (p=0.0012). Number of Tregs/μl was higher at day 21 in rapamycin-treated mice than in mice given PBS (2.000±1.195 versus 1.250±0.8864; p=0.0796). Moreover, number of naïve CD4+T (10.00±4.192 versus 30.25±5.185; p= 0.0089) and effector memory T cells (EMT) (30.67±3.180 versus 67.33±7.881; p= 0.0125) were higher in rapamycin mice. Finally, proliferation of EMT (assessed by fl ow cytometry using Ki-67) was higher in PBS than in rapamycin mice (45.28%±4.084 versus 31.90%± 2.003; p=0.0474). Conclusion: We have developed a mice model of severe cGVHD. Interestingly, rapamycin prevented death from cGVHD in that model, perhaps through in vivo expansion of Treg. [less ▲]

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See detailLe matérialisme de Brentano
Boccaccini, Federico ULg

Conference (2012)

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See detailDisorders of consciousness
Vanhaudenhuyse, Audrey ULg

Conference (2012)

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See detailModeling of Surrogate Fuels with Real Components
Mair-Zelenka, P; Wallek, T; Reiter, A M et al

Conference (2012)

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See detailAssessing the impact of space and time resolution of brightness temperature simulation conditions in correcting SEVIRI SST over the Adriatic Sea
Tomazic, Igor ULg; Le Borgne, Pierre; Tudor, Martina et al

Conference (2012)

Majority of operational sea surface temperature (SST) infra-red (IR) products have small overall bias but exhibit higher absolute biases in specific regions. Previous studies [for example Tomazic et al ... [more ▼]

Majority of operational sea surface temperature (SST) infra-red (IR) products have small overall bias but exhibit higher absolute biases in specific regions. Previous studies [for example Tomazic et al., 2011] showed that over Adriatic Sea there is a positive summer bias sometimes exceeding 0.5 K. Methodology to decrease regional biases [Le Borgne et al., 2011], based on using atmospheric profiles, surface SST fields and radiative transfer model to simulate the non-linear split window SST (NLSST) algorithm error, was used to assess the impact of atmospheric profiles with different spatial resolution (ECMWF: 0.125 deg and ALADIN 2 km), different input surface SST fields (OSTIA 6 km and CNR UHR L4 1 km) and different time and space averaging criteria’s in deriving the algorithm correction. SST corrections derived for the NLSST Spinning Enhanced Visible and Infrared Imager (SEVIRI) algorithm for five months (July, October and December 2010 and March and July 2011) are validated with AATSR L2 SST fields and compared to already implemented regional correction procedure at Center de Meteorologie Spatiale (CMS) to assess the optimal combination of space and time averaging criteria’s and input fields. Results show that the best improvement for all available months and for both day and night is obtained when using spatial averaging over the whole domain in combination with time averaging between the last 15 and last 31 days both for day and night time analysis. Using higher resolution ALADIN atmospheric profiles with OSTIA input SST fields didn’t improve the SST correction compared to using combination of coarser ECMWF atmospheric profiles and OSTIA input SST. Small improvement, based only on analysis for two months in 2011, is obtained when using both higher spatial resolution atmospheric profiles (ALADIN) and higher resolution input SST fields (CNR UHR L4 1 km). The best improvement obtained for spatial averaging over the whole domain (Adriatic Sea) suggests that the domain should be more extended (to Mediterranean Sea) to derive optimal spatial averaging, while conclusion of improvement obtained when using both the higher spatial resolution atmospheric profiles and input SST field need extension of analysis on other months in 2010. [less ▲]

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See detailLes nouvelles réformes fiscales en Belgique: réflexions critiques
Jousten, Alain ULg

Conference (2012)

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See detailEvaluation of biobased synthesis pathways based on exergy balances
Frenzel, P; Hillerbrand, R; Pfennig, Andreas ULg

Conference (2012)

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See detailBonobos, Pan paniscus, in the forest-savannah mosaics of West DR Congo: does spatial structure influence the forest use dynamics?
Serckx, Adeline ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline

Conference (2012)

Bonobos, Pan paniscus, are endemic to the Democratic Republic of Congo (DRC) but the species’ range is still not precisely known. For example, the populations from West DRC have only been identified in ... [more ▼]

Bonobos, Pan paniscus, are endemic to the Democratic Republic of Congo (DRC) but the species’ range is still not precisely known. For example, the populations from West DRC have only been identified in 2005, following inventories conducted by WWF. This region is characterized by a forest-savannah mosaic, a particular ecotone with naturally fragmented forests, in which bonobos have hardly ever been studied in comparison with those evolving in central DRC rainforests. The area also increasingly includes numerous anthropogenic activities including logging and cattle ranching. Effective long-term conservation programs are then essential for the survival of bonobos’ populations. We decided to focus our study on bonobos’ forest use dynamics, testing spatial structure influence on bonobos’ density and forest use. This hypothesis is based on a landscape ecology theory, the pattern-process paradigm, establishing a triangular link between the structure, the composition and the ecological processes of a landscape. We used the interior-to-edge ratio to classify our study area (200km² of forests) in 5 categories of forest patches: (i) corridors (0.1 to 5.5km², ratio of 0), (ii) small patches (3.4 to 4.3km², ratios between 0.23 and 0.33), (iii) middle patch with edge area predominant (13.8km², ratio of 0.7), (iv) middle patch with interior area predominant (22.3km², ratio of 1.17), (v) big patch (122.2km², ratio of 1.43). We walked transects (total effort: 126km) to identify habitats (landscape composition) and bonobos’ use indices (nests and food remains – landscape ecological process). Results unexpectedly showed that bonobos use all forest patches, even corridors, mostly used for feeding. Small patches even include higher nest density than the big patch. Moreover, habitats with predominant Marantaceae understory are correlated with higher nest density. The study is still in process and sampling areas will be increased in further field work. The first results however already indicate that we could elaborate a model predicting bonobos’ presence according to habitats and spatial structure and designate forest patches to protect as a priority. This information should allow formulating specific management recommendations for regional conservation programs and logging concessions [less ▲]

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See detailUpper Paleolithic of the Ikh Tulberin Gol (Northern Mongolia): new excavation at the Tolbor 16 site
Zwyns, N.; Gladyshev, S.A.; Gunshinsuren, B. et al

Conference (2012)

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See detailRépartition spatiale du Desman des Pyrénées (Galemys pyrenaicus) en France et premier aperçu de sa structure génétique
Gillet, François ULg; D'Amico, Frank; Blanc, Frédéric et al

Conference (2012)

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See detailDissociation entre recollection et familiarité dans la maladie d’Alzheimer: Etude des bases cérébrales en imagerie par résonance magnétique fonctionnelle
Bastin, Christine ULg; Genon, Sarah ULg; Collette, Fabienne ULg et al

Conference (2012)

1. Matériels et méthodes. Les difficultés mnésiques des patients à un stade léger d’une maladie d’Alzheimer sont marquées par une atteinte sévère de la récupération consciente des informations dans leur ... [more ▼]

1. Matériels et méthodes. Les difficultés mnésiques des patients à un stade léger d’une maladie d’Alzheimer sont marquées par une atteinte sévère de la récupération consciente des informations dans leur contexte d’apprentissage (recollection). Par contre, la reconnaissance des informations sur base d’un sentiment de familiarité (savoir qu’une information a été rencontrée auparavant sans récupérer son contexte d’apprentissage) est relativement préservée (Dalla Barba, 1997; Rauchs et al., 2007). L’objectif de cette étude était de révéler les substrats cérébraux des processus de recollection et familiarité dans la maladie d’Alzheimer au moyen d’une tâche de mémoire associative analysée selon les principes de la Procédure de Dissociation des Processus (Jacoby, 1991). Pendant une acquisition en IRM fonctionnelle, 26 patients avec une maladie d’Alzheimer probable à un stade léger et 17 témoins âgés ont étudié des paires de mots, puis ont dû les reconnaître parmi des paires recombinées (deux mots vus mais pas ensemble) et des paires nouvelles. 2. Résultats. Les analyses comportementales ont indiqué que 10 patients Alzheimer avaient des indices de recollection nuls (AD-), tandis que 16 autres patients présentaient des processus de recollection résiduels (AD+) bien que significativement moins importants que les témoins. Par contre, le score estimant la contribution des processus de familiarité était équivalent dans les trois groupes. L’analyse de l’activité cérébrale a montré que, chez les patients AD+ comme chez les témoins, la recollection activait le cortex cingulaire postérieur. Cependant, cette région était fonctionnellement connectée à l’hippocampe, au cortex pariétal inférieur et au cortex préfrontal dorsolatéral uniquement chez les témoins. Par ailleurs, dans les trois groupes, la familiarité activait le sillon intrapariétal. 3. Conclusion. Cette étude montre un déficit sévère de recollection et une relative préservation de la familiarité chez des patients Alzheimer. Lorsque les patients possèdent des capacités résiduelles de recollection, celles-ci sont soutenues par le cortex cingulaire postérieur comme chez les personnes âgées saines. Cependant, une perturbation de la connectivité fonctionnelle entre le cortex cingulaire postérieur et des régions impliquées dans la mémoire relationnelle, les aspects subjectifs de la recollection et les processus de monitoring post-récupération suggère que la qualité de la recollection résiduelle des patients Alzheimer est dégradée. 4. Références. Dalla Barba, G. (1997). Recognition memory and recollective experience in Alzheimer's disease. Memory, 5, 657-672. Jacoby, L.L. (1991). A process dissociation framework: Separating automatic from intentional uses of memory. Journal of Memory and Language, 30, 513-541. Rauchs, G., Piolino, P., Mézenge, F., Landeau, B., Lalevée, C., Pélerin, A. et al. (2007). Autonoetic consciousness in Alzheimer's disease: Neuropsychological and PET findings using an episodic learning and recognition task. Neurobiology of Aging, 28, 1410-1420. [less ▲]

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See detailOutcome prediction in asymptomatic degenerative MR: the usefulness of exercise BNP.
Magne, Julien ULg; Mahjoub, H; Pibarot, P et al

Conference (2012)

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See detailToward a Taxonomy of Key Success Factors for SME’s in a Changing Environment : the case of the Luxury Industry
Riguelle, France ULg; Van Caillie, Didier ULg

Conference (2012)

This paper aims at proposing a synthetic taxonomy of key success factors (KSF) for SME's in the luxury industry. Both typologies of KSF for SME's in overall on the one hand, and for companies of the ... [more ▼]

This paper aims at proposing a synthetic taxonomy of key success factors (KSF) for SME's in the luxury industry. Both typologies of KSF for SME's in overall on the one hand, and for companies of the luxury industry on the other hand, constructed on a basis of a critical literature review regarding the two domains concerned (SME's performance management and performance management of companies of the luxury industry) are gathered to propose a single synthetic taxonomy of KSF for SME's of the luxury industry. [less ▲]

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See detailOptimization of biodegradable microparticles loaded with thrombin receptor agonist peptide (TRAP-6) for tissue engineering
Drozdova, M; Privalova, A; Demina, T et al

Conference (2012)

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See detailIs bad group climate between girls a risky factor of aggression?
Mathys, Cécile ULg; Lanctôt, Nadine

Conference (2012)

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See detailEinfluss des Schlaf-Wachverhaltens auf die zerebralen Korrelate kognitiver Leistungsfähigkeit: interindividuelle Unterschiede
Schmidt, Christina ULg; Reichert, Carolin; Maire, Micheline et al

Conference (2012)

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See detailHow does the visuo-spatial deficit impact basic numerical processing in Williams syndrome? The question of domain specificity
Rousselle, Laurence ULg; noel, Marie-Pascale

Conference (2012)

It has been suggested that mathematics learning disabilities, including those of genetic origin, result from a basic impairment of quantitative representations. In Williams syndrome in particular, recent ... [more ▼]

It has been suggested that mathematics learning disabilities, including those of genetic origin, result from a basic impairment of quantitative representations. In Williams syndrome in particular, recent studies report a specific deficit in tasks requiring symbolic and non symbolic numerical magnitude processing (Krajcsi et al., 2009 ; O’Hearn & Landau, 2007; Paterson et al., 2006). However, to our knowledge, the integrity of non numerical quantitative processing has never been investigated. Moreover, in the visual modality, it is difficult to disentangle the influence of the massive visuo-spatial impairment, which is a main characteristic of the cognitive phenotype of Williams syndrome, from the numerical magnitude processing deficit. Therefore, numerical and non numerical acuity were assessed in a group of patients with Williams syndrome using tasks with different visuo-spatial processing requirements. To assess the processing of non numerical continuous quantities, participants were asked to compare the length of two sticks (spatial dimension) vs. the duration of two sounds (temporal dimension). Their ability to process non-symbolic numerical magnitudes was explored in tasks requiring the comparison of two arrays of elements (spatial arrangement) versus two sequences of dots flashed in a single location (no spatial processing). Finally, their access to symbolic number meaning was assessed through the numerical comparison of two Arabic numbers vs two Spoken verbal numerals. In each task, the ratio between the quantities was manipulated in order to measure the entire psychophysic curve and to measure the acuity of their numerical and non numerical magnitude representations in non-symbolic tasks. [less ▲]

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