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See detailQuantum fidelity of symmetric multipartite states
Neven, Antoine ULg; Mathonet, Pierre ULg; Gühne, Otfried et al

in Physical Review A (2016), 94

For two symmetric quantum states one may be interested in maximizing the overlap under local operations applied to one of them. The question arises whether the maximal overlap can be obtained by applying ... [more ▼]

For two symmetric quantum states one may be interested in maximizing the overlap under local operations applied to one of them. The question arises whether the maximal overlap can be obtained by applying the same local operation to each party. We show that for two symmetric multiqubit states and local unitary transformations this is the case; the maximal overlap can be reached by applying the same unitary matrix everywhere. For local invertible operations (stochastic local operations assisted by classical communication equivalence), however, we present counterexamples, demonstrating that considering the same operation everywhere is not enough. [less ▲]

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See detailLes jeux vidéo : un modèle théorique pour la narration transmédia ?
Barnabé, Fanny ULg

Scientific conference (2016, November 28)

Les jeux vidéo peuvent-ils raconter des histoires ? Et, si c’est le cas, quelles sont leurs spécificités narratives ? Ces questions ont longtemps posé problème dans le champ des game studies, car les ... [more ▼]

Les jeux vidéo peuvent-ils raconter des histoires ? Et, si c’est le cas, quelles sont leurs spécificités narratives ? Ces questions ont longtemps posé problème dans le champ des game studies, car les conceptions traditionnelles du « récit » ne permettent pas de décrire de manière satisfaisante les modes de narration propres au médium vidéoludique. Or, à ce titre, le jeu vidéo n’est pas sans rappeler le transmédia : loin de ne représenter les histoires que sous la forme de suites linéaires d’événements, ces deux formats semblent plutôt organiser leur narration en architectures complexes, que nous appellerons des « univers fictionnels ». [less ▲]

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See detailInterfacial and foaming properties of five commercial dairy products and two types of proteose-peptone fractions
Ripollés, D.; Parrón, J.A.; Petrut, R. et al

Poster (2016, November 28)

Functional properties of surfactants contained in dairy products, like emulsifying, foaming and wetting properties, result from their capacity to reduce the surface tension by adsorption and formation of ... [more ▼]

Functional properties of surfactants contained in dairy products, like emulsifying, foaming and wetting properties, result from their capacity to reduce the surface tension by adsorption and formation of cohesive films at the interface. A wide variety of techniques have been developed to determine surface tension, but those that give dynamic measurements, rather than equilibrium measurements of surface tension, are more suitable to study functional properties. Furthermore, the surface activity of surfactants depends on the mechanical properties of the films that are formed at the interface, which are strongly influenced by the intramolecular interactions established. The aim of this study was to investigate the kinetics of adsorption, mechanical properties of monolayer films and foaming properties of five different commercial dairy products (whey protein concentrate (WPC), buttermilk, butter serum and two skimmed milks) and two proteose-peptone fractions. [less ▲]

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See detailLa zircone en prothèse dentaire et implantaire
MAINJOT, Amélie ULg

Conference (2016, November 28)

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See detailViral glycoprotein gp150 promotes sexual transmission of Murid Herpesvirus-4
Zeippen, Caroline ULg; Javaux, Justine ULg; Xiao, Xue ULg et al

Poster (2016, November 28)

Gammaherpesviruses are important pathogens in human and veterinary medicine. During co-evolution with their hosts, they developed many strategies allowing them to shed infectious particles in presence of ... [more ▼]

Gammaherpesviruses are important pathogens in human and veterinary medicine. During co-evolution with their hosts, they developed many strategies allowing them to shed infectious particles in presence of immune response. Understanding these strategies is likely to be important to control infection. Interestingly, we recently observed that Murid herpesvirus 4 (MuHV-4), a gammaherpesvirus infecting laboratory mice, could be sexually transmitted between mice. This model offers therefore the opportunity to understand the mechanisms underlying natural transmission. Some of these mechanisms could rely on the glycoprotein 150 (gp150), which could limit virus neutralization and promote the release of infectious particles from cells. In this study, we tested therefore the importance of gp150 in the context of MuHV-4 sexual transmission. Briefly, female mice were infected with WT or gp150- strains expressing luciferase. They were imaged with an in vivo imaging system to follow infection. When lytic replication was observed in the genital tract, infected females were mated with naïve males to compare the capacity of transmission of the two strains. Our results show that, while the gp150- strain has no deficit in reaching and replicating in the female genital tract, it displays a major deficit of sexual transmission in comparison with WT virions. Interestingly, this deficit appears to reflect a deficit of virions release from vaginal epithelial cells. Altogether, our results show that, while gp150 is not required for efficient dissemination and maintenance of MuHV-4 within its host, it is essential for efficient transmission, by promoting the releasing of infectious particles from the mucosal cells. [less ▲]

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See detailLesbians and gay men accessing parenthood: opportunities and challenges
Scali, Thérèse ULg

Scientific conference (2016, November 28)

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See detailLes nouveaux céramiques hybrides usinables : vont-ils révolutionner notre pratique ?
MAINJOT, Amélie ULg

Conference (2016, November 26)

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See detailThe EU’s geo-blocking Regulation proposal and its impact on the coherence of EU e-commerce regulation
Van Cleynenbreugel, Pieter ULg

Scientific conference (2016, November 26)

This presentation analyses and contextualises the EU's proposed geo-blocking regulation and its relationship to EU e-commerce legislation. It is addressed to an audience of cyberspace and e-law lawyers ... [more ▼]

This presentation analyses and contextualises the EU's proposed geo-blocking regulation and its relationship to EU e-commerce legislation. It is addressed to an audience of cyberspace and e-law lawyers and takes place in an ecommerce panel. Questions to be discussed concern the approach taken by the EU in tackling the challenges of e-commerce. [less ▲]

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See detailReturn to play after injection of PRP to treat tendinopathies
Kaux, Jean-François ULg

Conference (2016, November 26)

Detailed reference viewed: 34 (1 ULg)
See detailLa littérature (d’Armel Job) : l’histoire en suspens et l’être mis à nu
Cormann, Grégory ULg

Conference given outside the academic context (2016)

Detailed reference viewed: 34 (3 ULg)
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See detailCorrection of inertial oscillations by assimilation of HFradar data in a model of the Ligurian Sea
Vandenbulcke, Luc ULg; Barth, Alexander ULg; Beckers, Jean-Marie ULg

in Ocean Dynamics (2016)

This article aims at analyzing if high-frequency radar observations of surface currents allow to improve model forecasts in the Ligurian Sea, where inertial oscillations are a dominant feature. An ... [more ▼]

This article aims at analyzing if high-frequency radar observations of surface currents allow to improve model forecasts in the Ligurian Sea, where inertial oscillations are a dominant feature. An ensemble of ROMS models covering the Ligurian Sea, and nested in the Mediterranean Forecasting System, is coupled with two WERA high-frequency radars. A sensitivity study allows to determine optimal parameters for the ensemble filter. By assimilating observations in a single point, the obtained correction shows that the forecast error covariance matrix represents the inertial oscillations, as well as large- and meso-scale processes. Furthermore, it is shown that the velocity observations can correct the phase and amplitude of the inertial oscillations. Observations are shown to have a strong effect during approximately half a day, which confirms the importance of using a high temporal observation frequency. In general, data assimilation of HF radar observations leads to a skill score of about 30 % for the forecasts of surface velocity. [less ▲]

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See detailLa médecine générale en mutation : perspectives sociologiques
Slomian, Cynthia ULg

Conference (2016, November 26)

Detailed reference viewed: 26 (7 ULg)
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See detailL'activation comportementale est-elle pertinente pour tous les adultes dépressifs ? Une analyse en clusters
Wagener, Aurélie ULg; Baeyens, Céline; Van der Linden, Martial ULg et al

Poster (2016, November 26)

INTRODUCTION : L’hétérogénéité de la dépression est de plus en plus mise en évidence en termes de profils de symptômes, de réponse au traitement, etc. Les théories comportementales de la dépression ... [more ▼]

INTRODUCTION : L’hétérogénéité de la dépression est de plus en plus mise en évidence en termes de profils de symptômes, de réponse au traitement, etc. Les théories comportementales de la dépression soulignent l’importance de l’inactivité ainsi que des faibles niveaux de plaisir et de fréquence d’activités plaisantes dans le maintien de la dépression. Cette étude poursuit deux objectifs : (1) investiguer l’hétérogénéité de la depression via une analyse en clusters, (2) investiguer les valeurs prédictives de l’inactivité ainsi que des faibles niveaux de plaisir et de fréquence d’activités plaisantes sur la dépression en fonction du cluster d’appartenance. METHODE : Des adultes tout venant et/ou consultant des centres de santé mentale ont été recrutés (âge entre 18 et 60 ans). Ils ont complété l’Inventaire de Dépression de Beck – Seconde Edition, l’Echelle d’Activation Comportementale pour la Dépression – Version courte, et l’Inventaire des événements plaisants. RESULTATS : Une solution en six clusters a été mise en évidence : “gros dormeurs/heavy sleepers”, “dépressifs cognitifs/cognitive depressives”, “dépressifs affectifs-somatiques/affective-somatic depressives”, “dépressifs légers/mild depressives”, “dépressifs dormant peu/sleepless depressives”, “dépressifs typiques/typical depressives”. Des relations significatives entre inactivité, fréquence d’activités plaisantes et dépression ont seulement été observées chez les “dépressifs cognitifs/cognitive depressives”, les “dépressifs légers/mild depressives” et les “dépressifs typiques/typical depressives”. DISCUSSION : Les résultats confirment l’hétérogénéité de la dépression puisque six clusters ont été mis en évidence. Par ailleurs, l’activation comportementale ne semble pertinente que pour trois de ces clusters dans lesquels les postulats du modèle comportemental de la dépression sont confirmés (“dépressifs cognitifs/cognitive depressives”, “dépressifs légers/mild depressives”, “dépressifs typiques/typical depressives”). [less ▲]

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See detailLa Perspective Temporelle Equilibrée: Validation d’un questionnaire et relation avec la régulation émotionnelle.
Barsics, Catherine ULg; Rebetez, Marie My Lien; Rochat, Lucien et al

Poster (2016, November 26)

La Perspective Temporelle Equilibrée fait référence à une disposition individuelle caractérisée par le fait de se projeter mentalement dans le futur et dans le passé de manière positive et fréquente ... [more ▼]

La Perspective Temporelle Equilibrée fait référence à une disposition individuelle caractérisée par le fait de se projeter mentalement dans le futur et dans le passé de manière positive et fréquente. L’objectif de notre étude était de valider la version française d’une échelle, initialement conçue en anglais, évaluant cette orientation temporelle : la “Balanced Time Perspective Scale” (Webster, 2011). Une étude en ligne a permis de recueillir les données de 622 participants francophones issus de la population générale. Les résultats indiquent que la version française réplique la structure en deux facteurs du questionnaire original et plaident en faveur d’une bonne validité de construit. De surcroît, les résultats montrent qu’une tendance importante à se projeter mentalement dans le futur et dans le passé de manière positive et fréquente est associée à la réévaluation cognitive, une stratégie de régulation émotionnelle. En somme, ce questionnaire permet d’évaluer la perspective temporelle, qui est ici envisagée en tant qu’importante ressource pour le self, et ce, en étroite relation avec les capacités de régulation émotionnelle. [less ▲]

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See detailLes risques de la spécialisation sportive précoce
Jidovtseff, Boris ULg

Scientific conference (2016, November 26)

Detailed reference viewed: 14 (1 ULg)
See detailDe l’émergence à la canonisation. COnTEXTES n°17
Dozo, Björn-Olav ULg; Ellena, Laurence

Book published by COnTEXTES (2016)

Detailed reference viewed: 13 (0 ULg)