References of "Scientific congresses and symposiums"
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See detailÉtude du Typus mélancholicus au sein d’une population de dépressifs unipoalires
ramackers, Amélia; Englebert, Jérôme ULg

Poster (2015, January 21)

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See detailÉtude du récit de vie de l’adulte à haut potentiel
Mormont, Elodie; Gauthier, Jean-Marie ULg; Englebert, Jérôme ULg

Poster (2015, January 21)

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See detailLa personnalité Borderline à travers le test de Rorschach
Rommes, Jennifer; Englebert, Jérôme ULg

Poster (2015, January 21)

Detailed reference viewed: 36 (2 ULg)
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See detailStatistical analysis of the quasi-periodic relativistic electron injections in the Saturn's magnetosphere
Palmaerts, Benjamin ULg; Roussos, Elias; Krupp, Norbert et al

Conference (2015, January 21)

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See detailCommotion cérébrale
Kaux, Jean-François ULg

Conference (2015, January 19)

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See detailCharacterization of the chitin-glucan complex extracted from Komagataella pastoris cell wall
Farinha, I.; Duarte, P.; Pimentel et al

in Proceeding of the meeting (2015, January 19)

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See detailProduction of extracellular polysaccharide by Enterobacter A47 using cheese whey as the sole carbon source
Antunes, S.; Alves, V.D.; Grandfils, Christian ULg et al

in Proceeding of the meeting (2015, January 19)

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See detailThe Mediation Service, what interest for emergencies?
PIAZZA, Justine ULg; BRASSEUR, Edmond ULg; DOPPAGNE, Caroline ULg et al

Poster (2015, January 17)

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See detail"Oblitérations et mise en abyme dans A Humument de Tom Phillips"
Belloi, Livio ULg; Delville, Michel ULg

Conference (2015, January 17)

Dans cette communication, nous nous employons à étudier les différents effets de réflexivité dont certaines pages de "A Humument", l'œuvre majeure de l'artiste anglais Tom Phillips, se font volontiers le ... [more ▼]

Dans cette communication, nous nous employons à étudier les différents effets de réflexivité dont certaines pages de "A Humument", l'œuvre majeure de l'artiste anglais Tom Phillips, se font volontiers le lieu. [less ▲]

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See detailLa mise en abyme comme procédé comique
Saint-Amand, Denis ULg

Conference (2015, January 17)

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See detailLa mise en abyme vidéoludique comme vecteur d’une immersion au second degré : une analyse du jeu The Stanley Parable
Barnabé, Fanny ULg; Dozo, Björn-Olav ULg

Conference (2015, January 16)

Par sa nature même, le jeu entretient avec la réflexivité une parenté certaine. En effet, pour qu’une situation ou un objet soit reconnu comme ludique par les participants, il est nécessaire que ces ... [more ▼]

Par sa nature même, le jeu entretient avec la réflexivité une parenté certaine. En effet, pour qu’une situation ou un objet soit reconnu comme ludique par les participants, il est nécessaire que ces derniers superposent à leur action le message « ceci est un jeu » (Bateson, 1977). L’acte ludique, le « jouer » (Henriot, 1989), constitue donc un procédé de « méta-communication » (Bateson, 1977) supposant une interaction au second degré avec le réel (le joueur « fait comme si » ; Schaeffer, 1999). Le jeu vidéo n’échappe pas à cette dynamique réflexive, comme en témoigne le nombre important d’œuvres vidéoludiques qui – par le biais de différents outils formels – discourent sur leur propre organisation ludo-narrative, sur leurs possibilités d’utilisation ou sur le médium qui les supporte. Envisageant la mise en abyme comme l’un des procédés réflexifs – parmi d’autres – dont peut user le jeu vidéo, la présente communication visera à étudier les particularités de cette forme de représentation liées à son inclusion dans un environnement ludique. La mise en abyme vidéoludique rompt-elle l’immersion du joueur, le « cercle magique » (Huizinga, 1950) ? Permet-elle l’élaboration d’un univers fictionnel cohérent malgré le fait qu’elle rappelle le joueur à son statut d’utilisateur ? A-t-elle nécessairement une vocation critique ou peut-elle constituer une fin en soi, un dispositif ludique à part entière ? Pour répondre à ces interrogations, nous nous intéresserons à un cas exemplaire de mise en abyme vidéoludique : le jeu The Stanley Parable. Celui-ci met en perspective l’action du joueur en lui faisant incarner le personnage de Stanley, dont le travail consiste à appuyer sur des boutons en suivant un ordre et une fréquence qui lui sont dictés par un ordinateur. Ce jeu d’aventure pousse la logique réflexive à un point tel (elle constitue son fondement ludique, narratif et esthétique) qu’il met en question sa force évocatrice et sa validité : l’accumulation des mises en abyme (reflétant l’expérience du joueur mais aussi l’histoire du jeu vidéo en général) empêche effectivement toute prise au sérieux du récit, tout investissement au premier degré. En multipliant les méta-énoncés, The Stanley Parable fait de la mise en abyme un système de règles en soi (un game) dont le principe ludique repose sur la manipulation des codes mêmes du jeu vidéo : le game designer y engage le joueur dans une lutte (un play) dont l’enjeu n’est autre que la maîtrise du langage vidéoludique. [less ▲]

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See detailThe Impact of Employment Relationships on Domestic Worker’s Achievement of Transnational Family-Work Balance
Vivas Romero, Maria ULg

Conference (2015, January 16)

While the average mainstream woman’s daily commute to work is 28 minutes, the ageing Peruvian domestic workers I have followed for the past year, crossed the Atlantic ocean 12 years ago for jobs in ... [more ▼]

While the average mainstream woman’s daily commute to work is 28 minutes, the ageing Peruvian domestic workers I have followed for the past year, crossed the Atlantic ocean 12 years ago for jobs in Europe’s capital. They found in Brussels the opportunity to be employed either in the informal or formal domestic sector while they continued to cope with their transnational obligations as spouses, daughters, and mothers. Transnational family and Global Care Chains literature have examined the consequences of migrant domestic workers’ double role as mothers and workers abroad. My contribution takes the discussion one step further and examines how, in spite of their disadvantaged position within the global division of labor, these women manage to informally negotiate a transnational family-work balance. My analysis, based on the life-stories of two ageing Peruvian women, suggests that domestic-workers’ success in their negotiations for transnational family-work balance simultaneously depends on three factors: 1- their gender, race, and class positioning within the migratory, care, and welfare regimes of sending and receiving states, 2- their ability to circulate familial care transnationally through the different stages in their life-course, 3- the business or personalized relationship that they established through their life-course with their employers. Furthermore, this analysis shows that employers are key actors in domestic workers’ negotiation, not only of a family-work balance, but also simply for social protection, especially in their old age. Finally, I suggest that the analysis of these complex employer-employee negotiations may allows us to see how these particular domestic workers are taking small steps to professionalize their work while paving the way to erase the historical vestiges associated with it. [less ▲]

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See detailMaking sense of science and technology in contemporary societies
Delvenne, Pierre ULg

Conference (2015, January 16)

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See detailAcheter, cuisiner, transmettre. Diversification des choix alimentaires des familles marocaines en contexte migratoire.
Mescoli, Elsa ULg

Conference (2015, January 16)

Les études autour des cultures alimentaires contemporaines, menées dans le cadre de différentes disciplines, mettent en évidence le dynamisme interne et interrelationnels qui caractérise les gastronomies ... [more ▼]

Les études autour des cultures alimentaires contemporaines, menées dans le cadre de différentes disciplines, mettent en évidence le dynamisme interne et interrelationnels qui caractérise les gastronomies, plutôt qu’une « pureté » et « immobilisme » originels (La Cecla, 1998). Cependant, lorsqu’il s’agit d’analyser le rapport entre alimentation et migration, une essentialisation des habitudes se produit. Celles des migrants sont souvent considérées comme résistantes au changement, et elles deviennent les indicateurs de la disposition à « s’intégrer » à la société locale. Dans ce contexte discursif, où différentes règles interagissent en déterminant l’inclusion ou l’exclusion des individus de certains groupes (la communauté majoritaire, la collectivité « saine » etc.), les familles issues de la migration vivent et exercent leur quotidien alimentaire. Bricoler avec ces règles surdéterminées leur permet d’exprimer une créativité qui se met en œuvre à plusieurs niveaux : celui de l’approvisionnement, celui de la préparation des repas, celui de la transmission des savoir-faire entre les générations. Cette communication vise à présenter les données collectées au cours d’un travail de terrain ethnographique mené pendant dix-huit mois au milieu d’un groupe de femmes marocaines résidentes dans la province de Milan en Italie. Observations et entretiens ont été conduits à la fois dans les maisons et les espaces publics. Ils portaient sur les (micro)pratiques alimentaires entendues comme facteurs centraux dans la définition du soi, suivant une approche praxéologique à la subjectivation (Warnier, 2001). Grâce à cette analyse, il sera possible de constater qu’une culture alimentaire composite se redéfinit au niveau familial, bien qu’elle ne soit pas exemptée de l’effet de dynamiques culturelles, sociales, économiques et politiques plus amples et apparemment structurantes. On assiste à une diversification des pratiques. D’un côté, avec leurs déplacements pour faire leurs achats, femmes et hommes dessinent des chorégraphies complexes à l’intérieur de la ville, et ils engagent aussi une circulation transnationale des biens alimentaires. De l’autre côté, mères et filles puisent de savoirs différents pour faire face à leurs exigences, en s’appuyant sur une pluralité d’outils (mémoire incorporée, bouche à oreille, livres de recettes, internet). Ainsi, les familles continuent d’effectuer un choix actif en matière d’alimentation. L’analyse sera accompagnée par des supports visuels. [less ▲]

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See detailLe syndrome dysexécutif pour les nuls
Adam, Stéphane; SALMON, Eric ULg; GILLAIN, Sophie ULg et al

Conference (2015, January 15)

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See detailProfession art-thérapeute?
Vandeninden, Elise ULg

Conference (2015, January 09)

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See detailLes médiateurs scolaires : une ressource pour la gestion des désordres scolaires
Dethier, Baptiste ULg

Conference (2015, January 09)

Dans de nombreux pays, principalement anglo-saxons, la médiation par les pairs s’est développée dans les écoles. Cependant, la spécificité de la Belgique francophone réside dans le développement, par des ... [more ▼]

Dans de nombreux pays, principalement anglo-saxons, la médiation par les pairs s’est développée dans les écoles. Cependant, la spécificité de la Belgique francophone réside dans le développement, par des fonctionnaires publics spécialisés, de dispositifs de médiation scolaire (Kuty et al., 2012). Censés prévenir la violence et le décrochage scolaires et agir sur le climat de l’école, ces dispositifs ne sont pas uniquement destinés à résoudre les problèmes posés par les élèves perturbateurs (ou plutôt de ces élèves en tant que problèmes eux-mêmes) mais aussi à stimuler la participation, l’implication et la responsabilisation des adultes, principalement les enseignants. De ce fait, ils interrogent les formes scolaires traditionnelles, voire bousculent les équilibres historiques du système (Verhoeven, 1997), en ouvrant davantage que des espaces de « traitement » des élèves dits « à problèmes ». Sur base de dix entretiens semi-directifs, cinq focus groups et trois périodes d’observation non participante auprès de médiateurs scolaires belges francophones, cette communication a pour objectif de décrire le cœur du travail de ces derniers pour mieux en saisir les caractéristiques et les enjeux. En effet, à partir d’un cadre légal restreint et flou initié dans les années 1990, les médiateurs ont développé des pratiques et des dispositifs s’inscrivant dans une logique de médiation, organisés sur le principe de l’intervention d’un tiers dit neutre et indépendant visant à aider au rétablissement d’une relation entre deux parties. Ces dispositifs cherchent à rompre avec les logiques historiques de stigmatisation des élèves perturbateurs, que nous interrogerons. [less ▲]

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See detailErosion and sedimentation issues in a hydropower project: assessing impacts and opportunities
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Schüttrumpf, Holger (Ed.) Offene Gewässer: Strahlwirkung, Fischaufstieg, Fischabstieg, Sedimente, Schadstoffe (2015, January 09)

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See detailLa réforme des soins de santé mentale en Belgique: pas complètement convergents, mais concrètement interdépendants
Thunus, Sophie ULg

Conference (2015, January 08)

Dans cet article, nous retracerons d’abord les grandes lignes des évolutions des associations d’usagers et de proches en santé mentale, en Europe et en Belgique. Ensuite, nous présenterons une ... [more ▼]

Dans cet article, nous retracerons d’abord les grandes lignes des évolutions des associations d’usagers et de proches en santé mentale, en Europe et en Belgique. Ensuite, nous présenterons une expérimentation politique dans le champ de la santé mentale en Belgique, qui a été l’occasion, pour les associations d’usagers et de proches, d’institutionnaliser leur participation. A cette occasion, nous évoquerons les motifs politiques à l’origine du projet de participation (acte 1) confié par les autorités publiques belges aux associations, ses modalités, et son implémentation au sein d’un dispositif d’action publique impliquant également des experts professionnels et scientifiques. Dans un troisième temps, nous nous intéresserons à la poursuite du projet participation dans le cadre de la réforme actuelle de la santé mentale et de la psychiatrie. Nous décrirons les modalités d’implémentation du projet (acte 2) et les nouveaux défis qui se posent aux associations, au fur-et-à-mesure de l’augmentation et de la visibilité accrue de leur participation aux niveaux institutionnels et politiques. En conclusion, nous soulignerons le caractère contingent de l’émergence et de la stabilisation de la participation en Belgique. Nous verrons que ce caractère contingent est à l’origine de fortes interdépendances entre le développement de la participation, des projets politiques spécifiques et trajectoires individuelles particulières. Cette interdépendance génère à son tour des enjeux spécifiques, pour les associations et les représentants des usagers, en termes identitaires et de légitimité. Nous soulignerons en outre le caractère incrémental du processus par lequel les associations stabilisent leur discours, leur méthodologie et leur intervention concrète dans la prise de décision aux niveaux macro et micro. A cet égard, mettrons en évidence l’importance de la production continue de documents (recommandations, questionnaires, …) stabilisant les éléments-clé de ce discours et permettant aux experts par le vécu de le porter en différents endroits, au sein des institutions des soins et dans la sphère politique. Finalement, nous envisagerons l’hypothèse de la professionnalisation des représentant(e)s des associations et des représentants des usagers, tout en soulignant les enjeux personnels et structurels associés à cette professionnalisation. [less ▲]

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See detailQualité diagnostique et efficacité d'un système en ligne entrainant à la résolution de problèmes complexes en physique
Marique, Pierre-Xavier ULg; Jacquet, Maud ULg; Georges, François ULg et al

Conference (2015, January 08)

Dans le cadre de projets de lutte contre l’échec en bachelier, le LabSET et des enseignants de physique de l'Université de Liège ont développé un dispositif en ligne d’entraînement à la résolution de ... [more ▼]

Dans le cadre de projets de lutte contre l’échec en bachelier, le LabSET et des enseignants de physique de l'Université de Liège ont développé un dispositif en ligne d’entraînement à la résolution de problèmes complexes en physique. La recherche porte d’une part sur le diagnostic de la maîtrise des processus cognitifs à mobiliser pour résoudre des problèmes de physique et d’autre part sur le lien entre l’entrainement effectif en ligne et la performance des étudiants lors de la résolution de problèmes à l'examen. Les analyses reposent sur étude menée auprès de 876 étudiants inscrits en premier bachelier médecine. Elles ont été effectuées sur bases des données subjectives (auto-évaluation du processus et du produit) et objectives (nombre de connexions aux exercices en ligne, résultats de maîtrise des questions spécifiques aux processus cognitifs étudiés, taux de réussite et notes aux examens). A l’issue de la recherche, nous constatons que c’est le processus d’analyse. Près de 50 % des étudiants en sont conscients. Bien que la force d'association soit de faible à moyenne, une dépendance est observée entre travail en ligne et réussite aux problèmes présentés à l’examen de juin. Les notes des étudiants ayant travaillé en ligne sont supérieures à celles des étudiants n’ayant réalisé aucun problème en ligne. Cependant, étant donné que les étudiants ayant réussi la physique sont aussi ceux ayant réussi des autres matières scientifiques, il est difficile d'établir un rapport de causalité entre travail en ligne et performances. [less ▲]

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See detailAutour du sujet défait
Vrancken, Didier ULg

Conference (2015, January 07)

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See detailEffect of stress path on the miniaturizatio size effect for nickel polycrystals
Keller, Clement; Hug, Eric; Duchene, Laurent ULg et al

Conference (2015, January 04)

The mechanical behavior of mettalic materials deeply depends on the size of samples. For specimen dimensions de creasing from a few millimeters to a few micrometers, the general observed trend is a ... [more ▼]

The mechanical behavior of mettalic materials deeply depends on the size of samples. For specimen dimensions de creasing from a few millimeters to a few micrometers, the general observed trend is a softening of the mechanical behavior in tension which affects the stress level and the strain hardening. This effect is triggered by the derease of the number of grains across the thickness ( also called thickness"t" over grain size "d" ratio). The objective of this work is to provide new experimental results in order to analyse the miniaturization size effects for various stress paths without strain gradients across the thickness of the samples. To this aim, experimental tensil tests, large tensile tests and shear tests have been performed on Ni sheets ( 0.5mm) with various grain sizes ensuring different t/d ratios. Results show that the miniaturization softening is affected by triaxiality, the larger is this parameter, the lower is the mechanicval softening. These features seem to be linked to surface effects which are larger for low triaxiality stress paths. Attempts of numerical simulations using strain gradient crystal plasticity model are also performed to confirm the role played by surface effects. [less ▲]

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See detailAn X-ray surprise in a magnetic pulsator
Nazé, Yaël ULg

in IAU Symposium (2015, January 01)

ξ[SUP]1[/SUP] CMa is a rare β Cep star with a strong magnetic field. To gain new insight on this object, a dedicated campaign using XMM-Newton was performed. These data reveal a new type of variations, X ... [more ▼]

ξ[SUP]1[/SUP] CMa is a rare β Cep star with a strong magnetic field. To gain new insight on this object, a dedicated campaign using XMM-Newton was performed. These data reveal a new type of variations, X-ray pulsations, posing a new challenge to our understanding of stellar winds. [less ▲]

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See detailIs λ Cep a pulsating star?
Uuh-Sonda, J. M.; Eenens, P.; Rauw, Grégor ULg

in Meynet, Georges; Georgy, Cyril; Groh, José (Eds.) et al IAU Symposium (2015, January 01)

It has been proposed that the variability seen in absorption lines of the O6Ief star λ Cep is periodical and due to non-radial pulsations (NRP). We have obtained new spectra during six campaigns lasting ... [more ▼]

It has been proposed that the variability seen in absorption lines of the O6Ief star λ Cep is periodical and due to non-radial pulsations (NRP). We have obtained new spectra during six campaigns lasting between five and nine nights. In some datasets we find recurrent spectral variations which move redward in the absorption line profile, consistent with perturbations on the stellar surface of a rotating star. However the periods found are not stable between datasets, at odds with the NRP hypothesis. Moreover, even when no redward trend is found in a full dataset of an observing campaign, it can be present in a subset, suggesting that the phenomenon is short-lived, of the order of a few days, and possibly linked to transient magnetic loops. [less ▲]

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See detailThe X-ray properties of magnetic massive stars
Nazé, Yaël ULg; Petit, Véronique; Rinbrand, Melanie et al

in IAU Symposium (2015, January 01)

Early-type stars are well-known to be sources of soft X-rays. However, this high-energy emission can be supplemented by bright and hard X-rays when magnetically confined winds are present. In an attempt ... [more ▼]

Early-type stars are well-known to be sources of soft X-rays. However, this high-energy emission can be supplemented by bright and hard X-rays when magnetically confined winds are present. In an attempt to clarify the systematics of the observed X-ray properties of this phenomenon, a large series of Chandra and XMM observations was analyzed, over 100 exposures of 60% of the known magnetic massive stars listed recently by Petit et al. (2013). It is found that the X-ray luminosity is strongly correlated with mass-loss rate, in agreement with predictions of magnetically confined wind models, though the predictions of higher temperature are not always verified. We also investigated the behaviour of other X-ray properties (absorption, variability), yielding additional constraints on models. This work not only advances our knowledge of the X-ray emission of massive stars, but also suggests new observational and theoretical avenues to further explore magnetically confined winds. [less ▲]

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See detailAre the stars of a new class of variability detected in NGC 3766 fast rotating SPB stars?
Salmon, Sébastien ULg; Montalbán, J.; Reese, D. R. et al

in Meynet, Georges; Georgy, Cyril; Groh, Jose (Eds.) et al Proceedings of the International Astronomical Union S307 (2015, January 01)

A recent photometric survey in the NGC 3766 cluster led to the detection of stars presenting an unexpected variability. They lie in a region of the Hertzsprung-Russell (HR) diagram where no pulsation are ... [more ▼]

A recent photometric survey in the NGC 3766 cluster led to the detection of stars presenting an unexpected variability. They lie in a region of the Hertzsprung-Russell (HR) diagram where no pulsation are theoretically expected, in between the δ Scuti and slowly pulsating B (SPB) star instability domains. Their variability periods, between ~0.1-0.7 d, are outside the expected domains of these well-known pulsators. The NCG 3766 cluster is known to host fast rotating stars. Rotation can significantly affect the pulsation properties of stars and alter their apparent luminosity through gravity darkening. Therefore we inspect if the new variable stars could correspond to fast rotating SPB stars. We carry out instability and visibility analysis of SPB pulsation modes within the frame of the traditional approximation. The effects of gravity darkening on typical SPB models are next studied. We find that at the red border of the SPB instability strip, prograde sectoral (PS) modes are preferentially excited, with periods shifted in the 0.2-0.5 d range due to the Coriolis effect. These modes are best seen when the star is seen equator-on. For such inclinations, low-mass SPB models can appear fainter due to gravity darkening and as if they were located between the δ Scuti and SPB instability strips. [less ▲]

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See detailAsteroseismology of Massive Stars: Some Words of Caution
Noels-Grötsch, Arlette ULg; Godart, M.; Salmon, Sébastien ULg et al

in Meynet, Georges; Georgy, Cyril; Groh, Jose (Eds.) et al Proceedings of the International Astronomical Union S307 (2015, January 01)

Although playing a key role in the understanding of the supernova phenomenon, the evolution of massive stars still suffers from uncertainties in their structure, even during their ``quiet'' main sequence ... [more ▼]

Although playing a key role in the understanding of the supernova phenomenon, the evolution of massive stars still suffers from uncertainties in their structure, even during their ``quiet'' main sequence phase and later on during their subgiant and helium burning phases. What is the extent of the mixed central region? In the local mixing length theory (LMLT) frame, are there structural differences using Schwarzschild or Ledoux convection criterion? Where are located the convective zone boundaries? Are there intermediate convection zones during MS and post-MS phase, and what is their extent and location? We discuss these points and show how asteroseismology could bring some light on these questions. [less ▲]

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See detailEvaluer les apprentissages dans le cadre d'une pédagogie par projet
Scheffers, Patricia ULg; Leduc, Diane; Le Coguiec, Eric

in Actes du 27e Colloque de l'ADMEE Euope (2015, January)

Avant d'être l'affaire des courants de l'éducation nouvelle, la pédagogie par projet était présente dans les discours de formation d'architecture italienne dès le 16e siècle. Aujourd'hui, elle s'inscrit ... [more ▼]

Avant d'être l'affaire des courants de l'éducation nouvelle, la pédagogie par projet était présente dans les discours de formation d'architecture italienne dès le 16e siècle. Aujourd'hui, elle s'inscrit parmi les multiples approches d'une pédagogie différenciée et est utilisée dans plusieurs disciplines, des arts aux sciences, en passant par l'ingénierie et l'administration. Plusieurs écrits existent à son sujet, mais peu s'attardent aux pratiques d'évaluation des apprentissages qu'elle génère. Pourtant, celle-ci est l'un des aspects les plus complexes de l'enseignement et le plus prenant puisque le professeur en est l'unique responsable et qu'il occupe près de la moitié de sa tâche (Laurier, Tousignant et Morrissette, 2005). Dimension fondamentale, et parfois difficile, dans le parcours de l'apprenant, l'évaluation des apprentissages impose actuellement un changement de culture important pour les professeurs, particulièrement lorsqu'il est question de pédagogie par projet. Pour certains d'entre eux, souvent peu formés en enseignement, mais possédant une expérience du métier reconnue, l'évaluation se limite au projet et à sa présentation devant un jury et les pairs au détriment de la qualité de la démarche et surtout des apprentissages réalisés (Allal, 2013; Beattie, 2006; Gaillot, 2009 ; Romainville, 2011). Dans la formation d'architecte, la pédagogie par projet fait partie intégrante du processus d'enseignement, d'apprentissage et d'évaluation. En atelier de projet de 3e bachelier à l'ULg, l'évaluation des apprentissages exclusivement orientés sur le projet a mené, après plusieurs années d'expérimentations, à la création de dispositifs adaptés et spécifiques. S'appuyant sur les principes clés et actuels en évaluation des apprentissages, ces dispositifs tentent de mettre en avant-plan un souci de concordance entre le contenu à enseigner et les méthodes utilisées. Croisant les regards théoriques et pratiques sur le sujet de l'évaluation de performances complexes intégrant créativité et innovation, un bilan des expériences sera établi et tentera de dégager des pistes de régulations pour continuer d'élever le niveau de validité du processus présenté. [less ▲]

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See detailExperimental evaluation of a pairwise broadcast synchronization in a low-power cyber-physical system
Ghoshdastider, U; Viga, R; Kraft, Michael ULg

in Proceedings of "Radio Wireless Week : San Diego - Janvier 2015" (2015, January)

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See detail1, 2, 3 façons d’évaluer des travaux pratiques d’Histologie
Multon, Sylvie ULg; Crahay, Vinciane ULg; Florquin, Sandra et al

Conference (2015, January)

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See detailAntioxydants et santé : conseils pratiques.
PINCEMAIL, Joël ULg

Conference (2015, January)

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See detailLe paradigme évaluatif des cours de langues étrangères du secondaire supérieur en Fédération Wallonie-Bruxelles: prescription ministérielle vs pratiques enseignantes
Noiroux, Kevin ULg

Conference (2015, January)

L’évaluation est une pratique enseignante qui poursuit diverses fins : certifier la maitrise de savoirs ou l’acquisition de compétences, autoriser l’élève à passer dans la classe supérieure, l’inciter à ... [more ▼]

L’évaluation est une pratique enseignante qui poursuit diverses fins : certifier la maitrise de savoirs ou l’acquisition de compétences, autoriser l’élève à passer dans la classe supérieure, l’inciter à travailler, et bien d’autres. Dès que l’on est un tant soit peu en contact avec le monde scolaire, on a l’impression que les enseignants francophones belges passent un temps considérable à évaluer. Mais force est de constater qu’on sait peu de choses sur les pratiques évaluatives des enseignants de langues étrangères du secondaire supérieur. Cette recherche exploratoire vise à déterminer le temps que les enseignants de langues étrangères allouent à l’enseignement et à l’évaluation. Pour ce faire, les prescrits de langues étrangères des deux réseaux principaux (l’enseignement officiel et l’enseignement libre) ont confrontés aux pratiques de huit enseignants. A cause d’une configuration disciplinaire axée sur quatre compétences communicationnelles (la compréhension à l’audition et à la lecture, l’expression écrite, et l’expression ou l’interaction orale) que les prescrits obligent à certifier plusieurs fois annuellement, les enseignants passent plus d’un cours sur quatre à évaluer leurs élèves. Cependant, ils ne ressentent pas cette pression du certificatif de prime abord : ce n’est qu’après avoir été confrontés à leur ratio personnel d’évaluation/enseignement qu’ils se rendent compte du caractère chronophage de l’évaluation dans leurs cours. En outre, ils déclarent tous regretter de ne pas pouvoir certifier leurs élèves sur leur maitrise des savoirs lexicogrammaticaux, pratiques que les prescrits interdisent. Passer près d’un cours sur quatre à évaluer les élèves sur des compétences qu’ils sont censés maitriser au moment de l’évaluation semble excessif et redondant. Une solution consisterait à réduire le nombre de compétences à certifier annuellement. On pourrait par exemple privilégier les compétences passives (compréhensions à l’audition et à la lecture) en début d’apprentissage, et les compétences actives (expressions écrite et orale) en fin d’apprentissage. [less ▲]

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See detailModelling Hydromechanical Dilation Geomaterial—Cavitation and Localization
Sieffert, Y.; Buzzi, O.; Collin, Frédéric ULg et al

in Chau, Kam Tim; Zhao, Jidong (Eds.) Bifurcation and Degradation of Geomaterials in the New Millennium (2015, January)

This paper presents an extension of the local second gradient model to multiphasic materials (solid particles, air, water) and including the cavitation phenomenon. This new development was made in order ... [more ▼]

This paper presents an extension of the local second gradient model to multiphasic materials (solid particles, air, water) and including the cavitation phenomenon. This new development was made in order to model the response of saturated dilatant materials under deviatoric stress and undrained conditions and possibly, in future, the behaviour of unsaturated soils [less ▲]

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See detailPourquoi la théorie de la connaissance a besoin de la psychologie: les arguments de Stumpf
Dewalque, Arnaud ULg

in Gyemant, Maria (Ed.) Psychologie et psychologisme (2015, January)

Mon objectif est double. Il s’agira, d’une part, de retracer la position de Carl Stumpf face à la querelle du psychologisme (lectures psychologistes de Kant vs lectures antipsychologistes néokantiennes ... [more ▼]

Mon objectif est double. Il s’agira, d’une part, de retracer la position de Carl Stumpf face à la querelle du psychologisme (lectures psychologistes de Kant vs lectures antipsychologistes néokantiennes) et, d’autre part, d’en tirer quelques implications d’allure très générale concernant la place qu’il convient de réserver aux considérations psychologiques en philosophie. Je suggérerai: (1) que Stumpf adopte une voie médiane entre psychologisme et antipsychologisme, (2) que cette voie médiane est représentative de l'orientation philosophique de Brentano et de son école, (3) qu'elle débouche sur une conception fine des rapports entre philosophie (en particulier théorie de la connaissance) et psychologie: la théorie de la connaissance a besoin de la psychologie, sans être à proprement parler "fondée" sur elle. [less ▲]

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See detailA sensor for stiffness change sensing based on three coupled resonators with enhanced sensitivity
Zhao, C; Wood, GS; Xie, J et al

in Proceedings of "IEEE MEMS Conf. : Portugal - Janvier 2015" (2015, January)

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See detailChange in the protofilamentnumber and β5-tubulin appearance in supporting cells during development of the hearing organ.
Renauld, Justine ULg; Thelen, Nicolas ULg; Johnen, Nicolas ULg et al

Poster (2015, January)

The supporting cells of the hearing organ are characterized by the presence of an abundant cytoskeleton which is mainly composed of microtubules. These supporting cells have also been shown to contain a ... [more ▼]

The supporting cells of the hearing organ are characterized by the presence of an abundant cytoskeleton which is mainly composed of microtubules. These supporting cells have also been shown to contain a minor mammalian tubulin, the β5-tubulin, recently reported as a biomarker of cell proliferation. It was shown that a β-tubulin isoform can specify the microtubule architecture, as seen with the expression of the Moth β2 tubulin in the Drosophila testes which imposes the 16-protofilament (16pf) structure on the corresponding subset of Drosophila microtubules. Moreover, supporting cell microtubules are formed by 15pf instead of the canonical 13, a unique fact among vertebrates. Such a protofilament configuration has been observed in C. elegans’ neurons which are responsible for the mechanosensory sense of touch. It was also shown that these 15pf microtubules were essential to the proper functioning of these neurons. To determine the role of this particular tubulin in the auditory organ and its possible involvement in the formation of the unusual 15pf microtubules of supporting cells, we studied the spatiotemporal localization of β5-tubulin during development in rats from embryonic day 18 until P25 (25th postnatal day). Then we examined the fine structure of microtubules at the transmission electron microscope level (TEM). Our results showed that β5-tubulin, contrary to other β-tubulins, had a unique distribution in the cochlea. This β-tubulin appeared at a postnatal stage, before the opening of the Corti’s tunnel and is restricted to supporting cells, especially in pillar and Deiters’ cells. Our TEM study further indicated that these cells were composed by 13pf microtubules at P2, but by 15pf microtubules at P25. In conclusion, the architecture and composition of microtubules present in the supporting cells change during development of the Corti organ. Further experiments are now required to determine if these changes are related to the appearance of β5-tubulin. [less ▲]

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See detailMeasurement of Human Internal Cadaveric VOC's by GCxGC-HRTOFMS
Stefanuto, Pierre-Hugues ULg; Varlet, Vincent; Silke et al

Conference (2015, January)

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See detailMassive stars: privileged sources of cosmic-rays for interstellar astrochemistry
De Becker, Michaël ULg

in Bulletin de la Société Royale des Sciences de Liège (2015, January), 84

Massive stars can be considered as crucial engines for interstellar physics. They are indeed the main providers of UV radiation field, and constitute a substantial source of chemical enrichment. On their ... [more ▼]

Massive stars can be considered as crucial engines for interstellar physics. They are indeed the main providers of UV radiation field, and constitute a substantial source of chemical enrichment. On their evolution time-scale (at most about 10 Myr), they typically stay close to their formation site, i.e. close to molecular clouds very rich in interstellar molecules. These stellar objects have also the property to be involved in particle acceleration processes leading to the production of high energy charged particles (cosmic-rays). After rejection in the interstellar medium, these particles will play a substantial role in processes such as those simulated in various facilities dedicated to experimental astrochemistry. This short contribution intends to put these particles, crucial for astrochemistry, in their adequate astrophysical context. [less ▲]

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See detailExperimental astrochemistry: from ground-based to space-borne laboratories (Foreword)
De Becker, Michaël ULg; Cottin, Hervé; Fleury-Frenette, Karl ULg et al

in Bulletin de la Société Royale des Sciences de Liège (2015, January), 84(4-6),

The investigation of the origin and evolution of molecules in space environments, either in interstellar or interplanetary conditions, constitutes a topic of high importance in modern space sciences. The ... [more ▼]

The investigation of the origin and evolution of molecules in space environments, either in interstellar or interplanetary conditions, constitutes a topic of high importance in modern space sciences. The presence of diversified and complex molecules motivates astrochemists to explore their formation mechanisms along with the physical conditions ruling these physico-chemical processes. Beside theoretical approaches aiming at simulating these processes, experimental techniques are nowadays frequently applied. Both laboratory and space experiment projects allow to reproduce to some extent the adequate conditions to understand some of these processes. The most recent results based on these techniques, and the prospects for future investigations, including the use of space platforms, were the scientific motivation of this workshop. These proceedings summarize a part of the content of this workshop, including abundant references to the relevant bibliography. [less ▲]

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See detailPrivate Versus Official? New Hypotheses for the Reconstruction of Bronze Age Upper Mesopotamian Economic System
Mas, Juliette ULg

Conference (2015, January)

Ancient economic systems from Southern and Central Mesopotamia are quite well known when Northern Mesopotamia ones remain less known. If we already know that, during Bronze Age, households played a ... [more ▼]

Ancient economic systems from Southern and Central Mesopotamia are quite well known when Northern Mesopotamia ones remain less known. If we already know that, during Bronze Age, households played a deciding role in several kinds of production, their degree of dependence or independence to the State still has to be clarified . The archaeological data clearly show that private workshops, set up in private houses, could be very efficient and specialized. Furthermore, these economic entities could be assimilated to private enterprises, which were able to handle their own administrative duties. On the other hand, we know from the texts that the Palace and the temples were also a main element of ancient economic systems. If public administrations should, in some cases, have supplied raw materials, hired workforce, and dealt with the distribution of produced goods, it seems that the production didn’t take place in the palace itself. Dealing both with archaeological and textual data could help to better define the role and the importance of both public and private components in early Mesopotamian economic systems. [less ▲]

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See detailL'adolescent diabétique et la tentation suicidaire
Malchair, Alain ULg

Poster (2015, January)

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See detailFood provioning influences ranging patterns in northern pigtailed macaques (Macaca leonina)
Huynen, Marie-Claude ULg; Savini, Tommaso ULg; Asensio, Norberto et al

in International Journal of Primatology (2015, January)

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See detailMetal matrix nanocomposite coatings for improving the usage properties of metallic materials
Mertens, Anne ULg; Lecomte-Beckers, Jacqueline ULg

Conference (2015, January)

The use of metal matrix nanocomposite is at the present time not as widespread as for their polymer-based counterparts. Yet, the addition of nanoparticles in a metallic matrix also allows to significantly ... [more ▼]

The use of metal matrix nanocomposite is at the present time not as widespread as for their polymer-based counterparts. Yet, the addition of nanoparticles in a metallic matrix also allows to significantly improve its usage properties, thus opening new and interesting prospects in terms of applications. This presentation aims at providing a broad overview of the various usage properties that can be enhanced by the addition of nanoparticles as illustrated by a number of examples taken from the scientific literature as well as from the researches carried out by the Metallic Materials Science Unit at the University of Liege. [less ▲]

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See detailInvolvement of the Distinctiveness Heuristic in Children's Decision Making
Geurten, Marie ULg; Willems, Sylvie ULg; Meulemans, Thierry ULg

in International Convention of Psychological Science: ICPS, Amsterdam 2015 (2015)

Over the past decades, researchers studying adult metacognition have placed a heavy emphasis on how expectations and naïve theories about memory functioning can improve memory accuracy through the ... [more ▼]

Over the past decades, researchers studying adult metacognition have placed a heavy emphasis on how expectations and naïve theories about memory functioning can improve memory accuracy through the implementation of some metacognitive rules. By contrasts, however, research on metacognition in children has only recently started to pay attention to the influence of these heuristic-based judgments on decision making. Generally, the results of these studies indicate that memory decisions are already based on some heuristics by the ages of 7-8 years. Thus far, the question of whether younger children can do the same has widely gone unexamined. The present experiment investigates whether young children are able to reduce their false recognitions rate after distinctive encoding through the implementation of a strategic metacognitive rule. Specifically, we examine the use of a retrieval strategy called the distinctiveness heuristic whereby people infer that an event has not occurred when they cannot remember expected memorial information about it. Seventy-two children, aged 4, 6, and 9 years, studied two lists of unrelated items. One of these lists was visually displayed (picture/dictinctive condition) while the other was presented auditorily (word/no-distinctive condition). After each study phase, participants completed recognition tests. Finally, they answered questions about their explicit knowledge of the distinctive-encoding effect. The results revealed that even the youngest children in our sample showed a smaller proportion of intrusions in the picture condition than in the word condition. Furthermore, the findings of the signal detection analyses are consistent with the hypothesis that the lower rate of false recognitions after picture encoding results from the implementation of a conservative response criterion based on the participants’ metacognitive expectations (distinctiveness heuristic). Moreover, the absence of correlation between children’s explicit knowledge of the distinctiveness rule and their effective use of this metacognitive heuristic seems to indicate that its involvement in memory decisions could be mediated by implicit mechanisms. [less ▲]

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See detailHow to use ICT to help students to gain in confidence and efficiency in an algorithmic and computer programming course ?
Colaux, Catherine ULg; Soyeurt, Hélène ULg

in INTED2015 Proceedings (2015)

Algorithmic and computer programming in the bachelor’s degree is a course that demands a large involvement of students in performing non-standard exercises. This practical aspect is incompatible with ... [more ▼]

Algorithmic and computer programming in the bachelor’s degree is a course that demands a large involvement of students in performing non-standard exercises. This practical aspect is incompatible with classical ex cathedra course. It is the reason why we implement a blended learning approach much more responsive to students in a bachelor class of Bio Engineering at the Gembloux Agro Bio Tech Faculty (University of Liege, Belgium). This course alternates theoretical classes, take-home lessons with the help of online pedagogical resources and video and debriefing sessions where students have the possibility to benefit from teacher’ support. In doing so, the students are better prepared for the examination. They also gain in confidence and motivation. The teacher no longer simply transmits the knowledge but assists the students in their reflection process and their mastering of programming tools [less ▲]

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See detailCerebellar hemorrhage : a rare condition in the term infant
MERINDOL, Ninon; BROUX, Isabelle ULg; DECORTIS, Thierry et al

Poster (2015)

Cerebellar hemorrhage is a rare condition in full-term newborns. Early diagnosis based on the identification of risk factors, particular clinical signs and correct medical imaging is primordial to ... [more ▼]

Cerebellar hemorrhage is a rare condition in full-term newborns. Early diagnosis based on the identification of risk factors, particular clinical signs and correct medical imaging is primordial to optimize the immediate treatment and to assess the long term prognosis. [less ▲]

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See detailIñigo de Brizuela et Andrés de Soto, deux regards sur la politique
Pirlet, Pierre-François ULg

in Labrador Arroyo, Felix (Ed.) II Encuentro de Jóvenes Investigadores en Historia Moderna, Universidad Rey Juan Carlos, Madrid, (1-2 juillet 2013) (2015)

Iñigo de Brizuela and Andrés de Soto, both confessors of the Archdukes were key figures at Brussels' court. Each of them used to influence the policy, using different bias. But they weren't trying to ... [more ▼]

Iñigo de Brizuela and Andrés de Soto, both confessors of the Archdukes were key figures at Brussels' court. Each of them used to influence the policy, using different bias. But they weren't trying to reach similar goals: Brizuela carefully acted to preserve Spanish interests in the Catholic Netherlands, while de Soto struggled for a Catholic victory. Their political actions and its reasons will be covered by this paper. [less ▲]

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See detailExperimental Validation of Structural Damping Models for Tape Springs
Dewalque, Florence ULg; Bruls, Olivier ULg

in Proceedings of the 6th European Conference for Aerospace Sciences (EUCASS) (2015)

The objective of this paper is to study the effect of structural dissipation on the dynamic response of tape springs using experimentally-validated finite element models. In order to reach this goal, an ... [more ▼]

The objective of this paper is to study the effect of structural dissipation on the dynamic response of tape springs using experimentally-validated finite element models. In order to reach this goal, an experimental set-up is built. It consists of two tape springs connected to a fixation support and a dummy panel. The data are collected through a force plate and a 3D motion analysis system. The post-treatment of the experimental results and a comparison with a finite element model show that the Kelvin-Voigt model gives a fair approximation of the structural damping for small oscillations, however, more advanced model should be considered in future works for a better understanding in case of large displacements. [less ▲]

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See detailSensitivity analysis for climate change impacts, adaptation and mitigation projection with pasture models
Bellocchi, G.; Ehrhardt, F.; Soussana, J. F. et al

in Climate-Smart Agriculture 2015 (2015)

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See detailLa politique belge dans la question allemande (1945-1990) : une politique de sécurité ?
Brüll, Christoph ULg

in Wintgens, Sophie; Grandjean, Geoffrey; Vanhaeren, Stéphanie (Eds.) L'insécurité en question. Définition, enjeux et perspectives (2015)

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See detailA consensual Diving-PAM protocol to monitor Posidonia oceanica photosynthesis
Gobert, Sylvie ULg; Lepoint, Gilles ULg; Silva, João et al

in PeerJ (2015)

The seagrass Posidonia oceanica is widely recognized as an effective bioindicator of the health status of Mediterranean coastal waters. Chlorophyll fluorescence measurements, in particular through the ... [more ▼]

The seagrass Posidonia oceanica is widely recognized as an effective bioindicator of the health status of Mediterranean coastal waters. Chlorophyll fluorescence measurements, in particular through the Pulse Amplitude Modulated (PAM) fluorometry method, are performed to study aquatic plant ecology and vitality and to assess their responses to diverse stressful factors. However, the current understanding of P. oceanica photosynthetic responses to environmental stresses does only allow scientists to use the PAM-method as a complementary tool to other more-robust monitoring techniques. Consequently, a more in-depth knowledge of the natural causes of variability of P. oceanica photosynthetic responses are a prerequisite to any surveys relying on that time and cost-effective method. In the framework of the STARECAPMED project, this work aimed to determine the influence of several environmental (depth, daytime, season) and plant-specific characteristics (leaf age, leaf part analyzed, epiphytic coverage) on the photosynthetic responses (Y, ETR, RLC) of P. oceanica. Water temperature, irradiance and several biochemical parameters of the seagrass (chl.a, chl.b, C, N, P, micronutrients such as Fe, Cu) were measured as well. The field survey was performed in a pristine meadow in the Calvi Bay, Corsica. Environmental and plant-physiological characteristics deeply influenced P. oceanica photosynthetic responses. As an example, ETR decreased with depth, contrary to Y that mostly increased. ETR was lower in the basal part of leaf blade, and the epiphytic coverage of leaf tips slightly increased their ETR compared to leaf tips cleaned of epiphytes. Depth and leaf part-related variations in RLC were also observed. Because of this natural variability, it appears essential to develop a consensual protocol of chlorophyll fluorescence measurements to publish reliable and comparable results between studies. We therefore notably suggest to perform measurements close to midday, when photosynthetic responses are the highest; at 10-15 m depth in order to avoid, among others, low depth light irradiance variability; on the middle part of the 3rd-4th external leaf, well developed, highly photosynthetic, and little epiphyted. Finally, because P. oceanica fluorescence was correlated with N, P and chl.b leaf contents, the PAM-method could afterwards be used as bioindicator technique, according to the protocol proposed. [less ▲]

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See detailDes insectes au menu: apports protéiques et nutriments particuliers?
Caparros Megido, Rudy ULg; Alabi, Taofic ULg; Haubruge, Eric ULg et al

in 56èmes Journées Nationales de Diététique et de Nutrition (2015)

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See detailKonceptualizacija prava na državljanstvo u jurisprudenciji Europskog suda za ljudska prava
Mazur Kumric, Nives ULg

in The Legal System and Protection Against Discrimination, Collection of Papers, Second Volume, Kosovska Mitrovica, 2015 (2015)

The notion of citizenship rests on the cleavage between national and international law as a matter predominantly shaped by state's internal acts, in accordance with limits determined by the state's ... [more ▼]

The notion of citizenship rests on the cleavage between national and international law as a matter predominantly shaped by state's internal acts, in accordance with limits determined by the state's interrelations with other states and rules of international law. The respective dichotomy generates further branching of the notional structure, making it multilayered, multidimensional and fluid. The simplified definition of citizenship conceptualises it as a real and effective link between the state and an individual, however, in social reality the notion transcends the respective formal perception and interferes with conceptions of identity, belonging and sentiments. With the aim of positioning citizenship within the domain of contemporary international human rights protection, this paper focuses on the analysis of jurisprudence of the European Court of Human Rights which has in several of its recent judgments provided for an original interpretation of the right to citizenship, subsuming it under the ambit of Article 8 of the Convention for the Protection of Human Rights and Fundamental Freedoms on the right to private and family life. Although Conventional norms do not grant the right to citizenship expressis verbis, an insight into three judgments (Genovese v. Malta, Mennesson v. France and Jeunesse v. the Netherlands) demonstrates that the Court's innovative interpretation of Article 8 has proved that flexible notions of private and family life are comparable enough with citizenship to embrace the aspects of a person's social identity which make up the essence of the concept of citizenship. [less ▲]

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See detailLe pari de la « Barrière des Pays-Bas » : des illusions sécuritaires aux réalités politiques et culturelles
Lanneau, Catherine ULg

Conference (2015)

Parmi ses multiples dispositions tendant à canaliser une France perçue comme expansionniste, le congrès de Vienne a entériné la naissance d’un Royaume uni des Pays-Bas, amalgamant des territoires ... [more ▼]

Parmi ses multiples dispositions tendant à canaliser une France perçue comme expansionniste, le congrès de Vienne a entériné la naissance d’un Royaume uni des Pays-Bas, amalgamant des territoires aujourd’hui répartis entre la Belgique, le Luxembourg et les actuels Pays-Bas. Qu’on y voie une barrière contre la France, une sentinelle plantée au nord ou un boulevard pour l’Europe, les Low countries ont un rôle stratégique majeur. Mais la logique militaire ne peut faire abstraction des hommes et les réalités politiques, religieuses, linguistiques conduiront, en 1830, à la fin d’une expérience que peu de diplomates considéraient d’ailleurs, dès ses prémisses, comme viable. Dans cette contribution, nous entendons faire le point sur la période post-française dans l’actuelle Belgique. En quoi les années 1814-1830 ont-elles été une étape cruciale dans l’affirmation d’une identité nationale ou d’un patriotisme belge ? Pourquoi la politique de Guillaume Ier s’est-elle heurtée, dans les provinces méridionales, à une opposition plurielle et parfois paradoxale ? Pourquoi peut-on dire que les questions de liberté d’enseignement, de liberté religieuse et de liberté linguistique se sont intimement liées pour constituer la matrice des événements de 1830, une matrice alimentée bien sûr également par des revendications de nature économique ? [less ▲]

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See detailReverse current transient behavior of pGeSn/nGe diodes
Baert, Bruno ULg; Gupta, Somya; Gencarelli, Federica et al

Conference (2015)

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See detailTiers et procédure - Rapport provisoire pour la Belgique
Frankignoul, Laurent ULg

in Les tiers (2015)

Il s'agit du rapport provisoire publié sur le site de l'Association Henri Capitant ; un rapport définitif fera l'objet d'une publication dans la collection consacrée aux journées internationales de l ... [more ▼]

Il s'agit du rapport provisoire publié sur le site de l'Association Henri Capitant ; un rapport définitif fera l'objet d'une publication dans la collection consacrée aux journées internationales de l'Association [less ▲]

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See detailThe anti-angiogenic peptide Anginex blocks osteoclastogenesis
Muller, Joséphine ULg; Binsfeld, Marilène ULg; DUBOIS, Sophie ULg et al

in Belgian Journal of Hematology (2015), Abstracts book

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See detailA Lower Tournaisian (Hastarian) silicified brachiopod-coral fauna from South Belgium
Denayer, Julien ULg; Mottequin, Bernard; Poty, Edouard

Conference (2015)

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See detailOn the modelling of compacted bentonite under in situ conditions
Dieudonné, Anne-Catherine ULg; Talandier, Jean; Charlier, Robert ULg

Conference (2015)

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See detailChronophage, le design empathique?
Elsen, Catherine ULg

in Findeli, Alain; Borja de Mozota, Brigitte; Froehlicher, Thomas (Eds.) et al Actes des 9èmes Ateliers de la Recherche en Design (2015)

Cet article envisage la dimension chronophage de l’approche empathique, une des dimensions fondamentales du design d’expérience. Quels efforts investir dans le raisonnement « centré-utilisateurs », et ... [more ▼]

Cet article envisage la dimension chronophage de l’approche empathique, une des dimensions fondamentales du design d’expérience. Quels efforts investir dans le raisonnement « centré-utilisateurs », et pour quels résultats ? L’examen des données récoltées au fil de quatre protocoles (un empirique et trois expérimentaux) révèle comment une “créativité disciplinée” peut outiller une approche plus agile des besoins-utilisateurs. [less ▲]

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See detailAuroral spirals at Saturn
Radioti, Aikaterini ULg; Grodent, Denis ULg; Gérard, Jean-Claude ULg et al

Conference (2015)

We report Cassini/UVIS observations of auroral vortices at Saturn propagating from midnight to noon via dawn. The emission in the dawn auroral sector is observed to consist of several detached features ... [more ▼]

We report Cassini/UVIS observations of auroral vortices at Saturn propagating from midnight to noon via dawn. The emission in the dawn auroral sector is observed to consist of several detached features that swirl with time. They have a diameter of 6000 km in the ionosphere, which would correspond to plasma vortices in the magnetosphere of 12 to 15 Rs. ENA enhancements are observed simultaneously. However, they do not show any clear vortices. We estimate the velocity of the UV auroral feature to decrease from 85% of rigid corotation (28o/h) in the most equatorward part of the aurora to 68% of rigid corotation (22o/h) in the poleward part and we demonstrate that such velocity gradient could result in swirling auroral features. Particle velocities derived from magnetospheric data in previous studies, confirm large variations of the corotation fraction as a function of radial distance. We suggest that the auroral vortices could be the ionospheric footprints of hot dynamic populations containing strong velocity gradients. Alternatively, we consider another scenario that could generate auroral vortices based on field line deformation from the magnetosphere to the ionosphere, like it is proposed for the Earth. In that case the auroral spiral is the result of some processes that occurred in the transition region between the centers of vortices where strong shear flows existed. Finally, a third possibility is considered, according to which the auroral vortices reported here are the direct optical signatures of the plasma vortical flows in the magnetopause related to Kelvin-Helmholtz instabilities. However, this might be less possible due to the very different spatial scales of the auroral features (12-15 Rs) and the observed plasma vortices in the magnetopause (1 Rs). [less ▲]

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See detailPercentage of women achieving non-osteoporotic BMD T-scores at the lumbar spine (LS) and total hip (TH) during up to 8 years of Denosumab (Dmab) treatment
Ferrari, S; Libanati, C; Lin, CJF et al

in Osteoporosis International (2015), 26(S1), 149-150

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See detailThematic analysis and the 3rd person plural suffix pronoun in the Medinet Habu historical inscriptions
Gillen, Todd Jonathan ULg

in Kousoulis, Panagiotis (Ed.) Proceedings of the Tenth International Congress of Egyptologists (2015)

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See detailComparison of soil water potential sensors
Degré, Aurore ULg; Cadwell, Todd; van der Ploeg, Martine

in Geophysical Research Abstracts (2015)

Temporal and spatial monitoring of soil water potential and soil water content are necessary for quantifying water flow in the domains of hydrology, soil science and crop production as knowledge of the ... [more ▼]

Temporal and spatial monitoring of soil water potential and soil water content are necessary for quantifying water flow in the domains of hydrology, soil science and crop production as knowledge of the soil water retention curve is important for solving Richards’ equation. Numerous measurement techniques exist nowadays that use various physical properties of the soil-water complex to record changes in soil water content or soil water potential. Laboratory techniques are very useful to determine static properties of the soil water retention curve, and have been used to show the impacts of hysteresis. Yet, other spatiotemporal dynamics resulting from for example growing root systems, biological activity, periodic tillage and their impact on the soil structure cannot satisfactory be quantified in static setups in the laboratory. ). To be able to quantify the influence of soil heterogeneity, and spatiotemporal dynamics on the soil water retention curve, an in situ approach combining soil moisture and soil water potential measurements could provide useful data. Such an in situ approach would require sensors that can measure a representative part of the soil water retention curve. The volumetric soil water content is often measured using time domain reflectometry, and has gained widespread acceptance as a standard electronic means of volumetric water content measurement. To measure the soil water potential, water filled tensiometers are used in most studies. Unfortunately, their range remains limited due to cavitation. Recently, several new sensors for use under in situ conditions have been proposed to cover a wider range of pressure head: Polymer tensiometers, MPS (Decagon) and pF-meter (ecoTech). In this study, we present the principles behind each measurement technique. Then we present the results of a fully controlled experiment where we compared two MPS sensors, two pF-meter sensors and two POT sensors in the same repacked soil. It allows us to discuss advantages and disadvantages of each method. A CS616 volumetric water content probe was installed to compare in situ measured retention curves with laboratory measured retention curves for each method. [less ▲]

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See detailAldebert et Clément. Deux évêques marginaux sacrifiés à la réforme de l’Église ?
Close, Florence ULg

in Depreux, Philippe; Le Jan, Régine; Bougard, François (Eds.) Compétition et sacré au haut moyen âge : entre médiation et exclusion (2015)

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See detailLearning the Tactile Signatures of Prototypical Object Parts for Robust Part-based Grasping of Novel Objects
Hyttinen, Emil; Kragic, Danica; Detry, Renaud ULg

in IEEE International Conference on Robotics and Automation (2015)

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See detailA multi-scale magnetotail reconnection event at Saturn and associated flows: Cassini/UVIS auroral observations
Radioti, Aikaterini ULg; Grodent, Denis ULg; Jia, X. et al

Conference (2015)

We present high-resolution Cassini/UVIS (Ultraviolet Imaging Spectrograph) observations of Saturn's aurora during May 2013 (DOY 140-141). The observations reveal an enhanced auroral activity in the ... [more ▼]

We present high-resolution Cassini/UVIS (Ultraviolet Imaging Spectrograph) observations of Saturn's aurora during May 2013 (DOY 140-141). The observations reveal an enhanced auroral activity in the midnight-dawn quadrant in an extended local time sector (~02 to 05 LT), which rotates with an average velocity of ~ 45% of rigid corotation. The auroral dawn enhancement reported here, given its observed location and brightness, is most probably due to hot tenuous plasma carried inward in fast moving flux tubes returning from a tail reconnection site to the dayside. These flux tubes could generate intense field-aligned currents that would cause aurora to brighten. However, the origin of tail reconnection (solar wind or internally driven) is uncertain. Based mainly on the flux variations, which do not demonstrate flux closure, we suggest that the most plausible scenario is that of internally driven tail reconnection which operates on closed field lines. The observations also reveal multiple intensifications within the enhanced region suggesting an x-line in the tail, which extends from 02 to 05 LT. The localised enhancements evolve in arc and spot-like small scale features, which resemble vortices mainly in the beginning of the sequence. These auroral features could be related to plasma flows enhanced from reconnection which diverge into multiple narrow channels then spread azimuthally and radially. We suggest that the evolution of tail reconnection at Saturn may be pictured by an ensemble of numerous narrow current wedges or that inward transport initiated in the reconnection region could be explained by multiple localised flow burst events. The formation of vortical-like structures could then be related to field-aligned currents, building up in vortical flows in the tail. An alternative, but less plausible, scenario could be that the small scale auroral structures are related to viscous interactions involving small-scale reconnection. [less ▲]

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See detailAntoninos de Cos, les lophoura et les soins vétérinaires
Marganne, Marie-Hélène ULg

in Doyen-Higuet, Anne-Marie; Van den Abeele, Baudouin (Eds.) Chevaux, chiens, faucons. L’art vétérinaire antique et médiéval à travers les sources écrites, archéologiques et iconographiques (Louvain-La-Neuve, 24-26 mars 2011) (2015)

Poursuivant les recherches ébauchées à propos d'Antoninos de Cos, dont le nom apparaît, à propos de soins vétérinaires, dans un papyrus grec daté du début du IIIe siècle de notre ère réédité récemment par ... [more ▼]

Poursuivant les recherches ébauchées à propos d'Antoninos de Cos, dont le nom apparaît, à propos de soins vétérinaires, dans un papyrus grec daté du début du IIIe siècle de notre ère réédité récemment par nos soins (Matière médicale ou doxographie ? Révision de PSI inv. 3011 [MP3 2388], dans V. Boudon-Millot – A. Garzya – J. Jouanna & A. Roselli (éd.), Histoire de la tradition et édition des médecins grecs. Actes du VIe Colloque international, Paris, 12-14 avril 2008, Napoli, 2010, pp. 43-59 [Collectanea, 27]), on s'attache à rassembler les fragments qui pourraient être attribués à cet auteur, qu'ils relèvent de la médecine humaine ou vétérinaire, à retracer tant leur contexte chronologique que les étapes de leur transmission, à analyser leur contenu et à définir enfin leur apport à la connaissance de l'art vétérinaire antique et de son expression écrite. [less ▲]

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See detailRole of Kinases in VZV Nuclear Egress
Blondeau, Caroline ULg; Istaz, Bastienne; Lebrun, Marielle ULg et al

Poster (2015)

Like all Herpesviruses VZV expresses two conserved proteins forming the nuclear egress complex (NEC), namely ORF24p and ORF27p, respectively homologous to UL34 and UL31 in HSV-1. Many works described the ... [more ▼]

Like all Herpesviruses VZV expresses two conserved proteins forming the nuclear egress complex (NEC), namely ORF24p and ORF27p, respectively homologous to UL34 and UL31 in HSV-1. Many works described the role of this complex and viral kinases, the Alpha-herpesvirus specific kinase US3p, and hCMV UL97p (conserved in all Herpesviruses and homolog to UL13p in HSV-1), in the nuclear capsids translocation to the cytoplasm. Indeed, using a very complex mechanism, not yet fully characterized, nuclear capsids bud through the internal nuclear membrane, stay briefly in the perinuclear space and finally free the capsids into the cytoplasm through fusion of the primary envelope with the external nuclear membrane. In the cytoplasm, virions acquire the second and last envelopment before being released outside the cells. In order to better characterize the nuclear egress in the context of VZV, we focused our work on the NEC and on both viral kinases ORF47p and ORF66p respectively homologous to HSV-1 UL13p and US3p. By co-immunoprecipitation we identified a protein complex containing ORF24p, ORF27p and both viral kinases and are currently trying to determine the role of each kinase in the formation of this complex. We are also characterizing the phosphorylation status of these proteins depending on ORF66p and/or ORF47p. Immunofluorescence studies of cells infected with a deleted ORF66 or ORF47 virus showed mislocalisation of some viral proteins such as ORF24p as described for HSV-1. Finally electron microscopy analyses are in progress and will help to determine the role of both VZV kinases in the nuclear egress. [less ▲]

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See detailMuscle fatigue resistance and self-perceived fatigue in relation with sarcopenia and quality of life
Beaudart, Charlotte ULg; Reginster, Jean-Yves ULg; Bautmans, I et al

in Journal of Frailty & Aging (2015), 4(S1), 61-62

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See detailUn partenariat pour promouvoir la biodiversité dans les carrières belges
Harzé, Mélanie ULg; Lussis, Benoît; Boisson, Sylvain ULg et al

Conference (2015)

Plus que toute autre industrie, les carrières entretiennent un lien étroit avec les écosystèmes. L’exploitation d’une carrière crée des conditions abiotiques propices au développement d’une mosaïque ... [more ▼]

Plus que toute autre industrie, les carrières entretiennent un lien étroit avec les écosystèmes. L’exploitation d’une carrière crée des conditions abiotiques propices au développement d’une mosaïque d’habitats comme les falaises et arènes rocheuses, les plans d’eau temporaires ou les pelouses pionnières, favorables à certaines espèces protégées en Europe comme le hibou grand-duc et le crapaud calamite. Nombre d’entre eux sont d’intérêt communautaire et sont devenus rares dans le Nord de l’Europe. Ces habitats temporaires s’installent souvent spontanément pendant l’exploitation d’une carrière mais une action conservatoire peut s’avérer nécessaire pour leur conservation sur le long terme. En fin de vie de la carrière une restauration écologique adéquate pourra favoriser l’installation de milieux plus permanents d’intérêt. Afin de promouvoir le développement de cette biodiversité, une planification réfléchie des plans d’exploitation et de réhabilitation est nécessaire. La fédération des industries extractives belge FEDIEX s’est engagée en 2012 avec la Région wallonne dans une charte sectorielle « carrières et biodiversité », définissant un plan d’action basé sur trois axes principaux : (1) la sensibilisation des membres ; (2) la diffusion de recommandations pratiques pour intégrer la protection et la gestion de la biodiversité dans les plans l’exploitation ; (3) la formation du personnel des carrières. Dans ce cadre, l’unité Biodiversité et paysage de la Faculté de Gembloux Agro-Bio Tech (Université de Liège) collabore depuis 2012 avec la FEDIEX. Notre présentation portera sur les réalisations de cette collaboration ; notamment les formations « Carrières et Biodiversité » organisées à l’attention du secteur carrier, les résultats des actions concrètes mise en place en carrière, les documents de vulgarisation réalisés afin de donner aux gestionnaires les clés pour gérer et restaurer différents habitats et espèces protégées et notre collaboration à la rédaction d’un projet LIFE Biodiversity «LIFE in quarries » qui a été présenté à l’union européenne. [less ▲]

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See detailTrabecular bone score (TBS) as a new complementary appproach for osteoporosis evaluation in clinical practice
Harvey, NC; Binkley, N; Brandi, ML et al

in Osteoporosis International (2015), 26(S1), 60

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