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See detailAnosognosie et monitoring des souvenirs associés au « soi » dans la Maladie d’Alzheimer
Genon, Sarah ULg; Mélon, Marlène; Collette, Fabienne ULg et al

Conference (2017)

Chez les patients atteints de maladie d’Alzheimer (MA), on observe dès les stades débutants d’une part un phénomène d’anosognosie, qui peut être considéré comme une altération de la conscience de soi, et ... [more ▼]

Chez les patients atteints de maladie d’Alzheimer (MA), on observe dès les stades débutants d’une part un phénomène d’anosognosie, qui peut être considéré comme une altération de la conscience de soi, et d’autre part un dysfonctionnement des processus de monitoring mnésique [1]. En outre, l’interaction entre le soi et la mémoire (conférant un bénéfice mnésique pour les informations associées à soi), apparaît significativement altérée dans la MA. Dans la présente étude, nous avons examiné les relations entre l’anosognosie et le monitoring lors de la récupération en mémoire d’informations expérimentalement associées à soi. Nous avons évalué les processus de monitoring lors de la récupération en mémoire à l’aide d’une tâche expérimentale de 32 paires visage-prénom, ainsi que l’anosognosie à l’aide du questionnaire d’anosognosie dans la démence (AQD, [2]) chez 20 patients MA et 20 personnes âgées contrôles (AC). Durant la phase d’encodage, les paires visage-prénom ont été présentées aux participants soit comme des personnes faisant partie de leur famille (soi) soit comme des personnes faisant partie de la famille de l’expérimentateur (autrui). Ensuite, nous avons évalué les jugements de « sentiment de savoir » (FOK), les performances de rappel et de reconnaissance, ainsi que les jugements de confiance (JOC) des participants pour le nom de chaque personne lorsque son visage était présenté. Nos résultats ont confirmé l’altération de la conscience de soi (c’est-à-dire l’anosognosie mesurée par l’AQD), l’altération du bénéfice mnésique pour les informations associées à soi, ainsi que l’altération des processus de monitoring lors de la récupération en mémoire (FOK et JOC) chez les patients MA. Néanmoins, une modification de l’interaction entre le soi et les processus de monitoring chez ces patients a été observée uniquement au niveau des sentiments de confiance pour des souvenirs erronés. Nous avons également observé que l’anosognosie des troubles comportementaux était significativement corrélée à la proportion de sentiments de confiance pour des reconnaissances erronées sur les items associés à soi. En conclusion, notre étude suggère que l’altération de la conscience des troubles comportementaux chez les patients MA pourrait être liée à un déficit de monitoring des souvenirs liés à soi. C’est-à-dire que la conscience altérée du dysfonctionnement au quotidien pourrait s’appuyer sur des souvenirs personnels déformés. [less ▲]

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See detailThe prosumers and the grid
Gautier, Axel ULg; Jacqmin, Julien ULg; Poudou, Jean-Christophe

E-print/Working paper (2017)

Prosumers are households that are both producers and consumers of electricity. A prosumer has a grid-connected decentralized production unit (DPU) and makes two types of exchanges with the grid: energy ... [more ▼]

Prosumers are households that are both producers and consumers of electricity. A prosumer has a grid-connected decentralized production unit (DPU) and makes two types of exchanges with the grid: energy imports when the local production is insufficient to match the local consumption and energy exports when local production exceeds it. There exists two systems to measure the exchanges : a net metering system that uses a single meter to measure the balance between exports and imports and a net purchasing system that uses two meters to measure separately power exports and imports. Both systems are currently used for residential consumption. We build a model to compare the two metering systems. Under net metering, the price of exports paid to prosumers is implicitly set at the price of the electricity that they import. We show that net metering leads to (1) too many prosumers, (2) a decrease in the bills of prosumers, compensated via a higher bill for traditional consumers, and (3) a lack of incentives to synchronize local production and consumption. [less ▲]

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See detailLes genres médiatiques de l'anticipation: des usages comiques du futur
Stienon, Valérie ULg

in Médias19 (2017)

La petite presse multiplie les usages comiques de la prédiction, tantôt en empruntant ses effets à l’almanach, tantôt en traitant au second degré les marronniers trop familiers, tantôt encore en ... [more ▼]

La petite presse multiplie les usages comiques de la prédiction, tantôt en empruntant ses effets à l’almanach, tantôt en traitant au second degré les marronniers trop familiers, tantôt encore en infléchissant vers la prospective le principe de la revue de fin d’année. Il est fréquent que les petits journaux satiriques feignent d’imaginer les événements à venir sous la forme de « prédictions pour l’année » et de « coups d’œil prophétiques ». Si de telles éphémérides parodiques ne bénéficient pas de la stabilité d’une rubrique spécifique, elles sont toutefois appelées, au siècle suivant, à prendre l’ampleur de numéros complets qui témoignent d’une postérité intéressante (Illustration, Lectures pour tous, VU, Sciences et voyages) et d’une créativité iconotextuelle qui peut aller jusqu’au faux reportage photographique d’anticipation. Cet article propose de cerner dans sa variété une microforme médiatique inhérente à la modernité de la petite presse. D’une part, sa discursivité porte sur des données socioculturelles présentées comme remarquables et novatrices, censées incarner la quintessence de leur époque tout entière tendue vers l’avenir. D’autre part, sa poétique affiche une temporalité méta-médiatique renvoyant aux fonctions rituelles et référentielles du périodique. [less ▲]

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See detailA computational model of mid-term outage scheduling for long-term system studies
Marin, Manuel ULg; Karangelos, Efthymios ULg; Wehenkel, Louis ULg

in PowerTech Manchester 2017 Proceedings (2017)

This paper presents a computational model of the mid-term outage scheduling process of electric power transmis- sion assets, to be used in long-term studies such as mainte- nance policy assessments and ... [more ▼]

This paper presents a computational model of the mid-term outage scheduling process of electric power transmis- sion assets, to be used in long-term studies such as mainte- nance policy assessments and system development studies, while accounting for the impact of outage schedules on short-term system operation. We propose a greedy algorithm that schedules the outages one by one according to their impact on system operation estimated via Monte-Carlo simulations. The model is implemented in JULIA and applied to the IEEE RTS-96. [less ▲]

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See detailPeur de l'intimité dans la relation amoureuse adolescente : L'implication de l'attachement parental et de l'attachement romantique
Courtain, Audrey ULg; Glowacz, Fabienne ULg

in Annales Médico-Psychologiques (2017), 175(4),

Teen dating is a developmental stage questioning dramatically the relationships to be expected with others, especially when feelings of tenderness and love are involved. It mobilizes parental attachment ... [more ▼]

Teen dating is a developmental stage questioning dramatically the relationships to be expected with others, especially when feelings of tenderness and love are involved. It mobilizes parental attachment and the internal working models related to it, while being colored by the emerging romantic attachment and its brand new internal working models. Attachments are deeply shaped by a dynamic interaction whereby the self tries to figure out how to reach security and autonomy still taking the other into account. This considered, intimacy also implies a dynamic feature: on the one hand, closeness and sharing of feelings and/or experiences, and on the other hand, individuality and maintaining of one’s ego. However, just like attachments may be insecure, a fear of intimacy cannot be underestimated during dating. Eventually, bearing in mind the societal and cultural components of attachment and intimacy, gendered explanations cannot be ignored, especially during adolescence. Objectives: Three hypotheses are being tested. First, the continuity from parental to romantic attachment is postulated, meaning that a secure, preoccupied or dismissing attachment to parents might lead to a subsequent secure, preoccupied or dismissing attachment to romantic partners. Second, the influence of parental attachment on the fear of intimacy during teen dating is questioned. The difficult dynamic of closeness/individuality might be explained by the parental attachment’s patterns. Third, the impact of romantic attachment on the fear of intimacy during teen dating is assessed. Also, dating characteristics such as number of love relationships, age of the first dating experience and the longest lasting relationship are studied and put in perspective with the romantic attachment. Materials and methods: The initial sample is made of 283 Belgian students (61% girls) from different teaching systems, aged of 16-22 years old (mean age : 17.43), and 232 of them had already had a dating experience by this time. They were questioned about dating characteristics such as number of love relationships, age of the first dating experience and the longest lasting relationship. Two questionnaires were also self-administered: the Behavioral Systems Questionnaire (assessing attachment) and the Fear of Intimacy Scale. Statistical analyses such as Pearson Chi², Anova and Post-Hoc LSD were carried out. Results: First, we cannot see any continuity between parental and romantic attachment. Second, dismissing attachment to parents fosters the fear on intimacy, compared to secure profiles; this is especially true for dismissing girls. Third, dismissing and preoccupied attachments to romantic partners foster the fear of intimacy, compared to secure profiles; this is especially true for dismissing and even more for preoccupied boys. Also, preoccupied attachment to romantic partners fosters the multiplication of datings, compared to secure; this is especially true for preoccupied and even more for dismissing girls. Finally, there is no effect of romantic attachment on the age of the first dating experience or on the longest lasting relationship. Conclusion: Parental and romantic attachments are involved in the fear of intimacy experienced by adolescents during dating. Still, attachment styles’ influence seems different for girls and boys, and highlights the need to distinguish girls’ from boys’ teen dating experiences. [less ▲]

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See detailLes intercommunales et les impôts sur les revenus : une valse fiscale à deux temps
Garroy, Sabine ULg

in ASBL Actualités (2017)

En 2014 et 2015, le régime fiscal des intercommunales a été revu de manière substantielle. Nous nous proposons, après une première section consacrée au cadre légal dans lequel cette réforme s’inscrit (I ... [more ▼]

En 2014 et 2015, le régime fiscal des intercommunales a été revu de manière substantielle. Nous nous proposons, après une première section consacrée au cadre légal dans lequel cette réforme s’inscrit (I), de décrire les grandes lignes de cette réforme suivant le rythme d’une valse à deux temps (II) ainsi que de livrer un bref commentaire de la circulaire administrative 10/2016 à l’occasion duquel nous nous interrogerons sur les éventuelles implications de cette réforme sur des personnes morales relevant du droit privé, les associations sans but lucratif (ci-après : ASBL) notamment (III). [less ▲]

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See detailProfiling Volatile Organic Compounds of Decomposition
Stefanuto, Pierre-Hugues ULg; Rosier, E; Tytgat, J et al

in Schotsmans, E; Marquez-Grant, N; Forbes, S (Eds.) Taphonomy of Human Remains (2017)

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See detailThe theoretical instability strip of V777 Her white dwarfs
Van Grootel, Valérie ULg; Fontaine, Gilles; Brassard, Pierre et al

in Astronomical Society of the Pacific Conference Series (2017), 509

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See detailMaking Sense Out of Pulsating Pre-ELM and ELM White Dwarfs
Fontaine, Gilles; Istrate, Alina; Gianninas, Alexandros et al

in Astronomical Society of the Pacific Conference Series (2017), 509

We present a unified view of pulsations in both pre-ELM and ELM white dwarfs within the framework of state-of-the-art binary evolution calculations that take into account the combined effects of diffusion ... [more ▼]

We present a unified view of pulsations in both pre-ELM and ELM white dwarfs within the framework of state-of-the-art binary evolution calculations that take into account the combined effects of diffusion and rotational mixing. We find that rotational mixing is able to maintain against settling a sufficient amount of helium in the envelope in order to fuel pulsations through He II-He III ionization on the pre-ELM branch of the evolutionary track in the spectroscopic HR diagram. By the time such a low-mass white dwarf enters the ZZ Ceti instability strip on the cooling branch, settling has taken over rotational mixing and produced a pure H envelope. Such a star then pulsates again, but, this time, as a DA white dwarf of the ZZ Ceti type. [less ▲]

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See detailIdentifying tissue specific gene expression using RNAseq data from multiple porcine tissues
Huang, Jianzhen; Schroyen, Martine ULg; Gabler, Nick et al

Poster (2017)

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See detailOptimized Schwarz Domain Decomposition Methods for Scalar and Vector Helmholtz Equations
Antoine, Xavier; Geuzaine, Christophe ULg

in Lahaye, Domenico; Tang, Jok; Vuik, Kees (Eds.) Modern Solvers for Helmholtz Problems (2017)

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See detailVers de nouvelles conceptions intégrées du fonctionnement de la mémoire
Bastin, Christine ULg

in Revue de Neuropsychologie (2017)

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See detailThe impact of automated hippocampal volumetry on diagnostic confidence in patients with suspected Alzheimer's disease: an EADC study
Bosco, P.; Redolfi, A.; Bocchetta, M. et al

in Alzheimer's & Dementia : The Journal of the Alzheimer's Association (2017)

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See detailPhase-change materials and rigidity
Piarristeguy, A.; Pradel, A.; Raty, Jean-Yves ULg

in MRS Bulletin (2017), 42(1), 45-49

Rigidity theory is an extraordinary tool to understand glasses. This article demonstrates how this model can help in understanding the link between structure, dynamics, and subtler properties such as ... [more ▼]

Rigidity theory is an extraordinary tool to understand glasses. This article demonstrates how this model can help in understanding the link between structure, dynamics, and subtler properties such as drift and aging, in particular, in phase-change materials (PCMs). First, a map of flexible/rigid regions in the Ge-(Sb)-Te system is drawn on the basis of atomistic structures modeled either by ab initio or reverse Monte Carlo techniques. A clear link between the flexible/rigid nature of the glass and its aging behavior is shown through resistivity drift as a function of composition measurements in amorphous GexTe100-x. In the particular case of amorphous GeTe, application of rigidity theory indicates that the average number of mechanical constraints decreases during aging, making the glass less stressed-rigid. Finally, the stability of PCMs also depends on the topology of the materials. The increasing number of constraints in GeTe when doped with C or N results in increased stability of the PCM. © 2017 Materials Research Society. [less ▲]

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See detailNuclear Motion Driven Ultrafast Photodissociative Charge Transfer of the PENNA Cation: An Experimental and Computational Study
Sun, Shoutian; Mignolet, Benoît ULg; Fan, lin et al

in Journal of Physical Chemistry A (2017)

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See detailA new electron-ion coincidence 3D momentum-imaging method and its application in probing strong field dynamics of 2-phenylethyl-N, N-dimethylamine
fan, lin; Lee, Suk Kyoung; Tu, Yi-Jung et al

in Journal of Chemical Physics (2017)

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See detailRewiring of porcine mRNA and miRNA networks in response to selection of residual feed intake
Beiki, Hamid; Schroyen, Martine ULg; Rakshandeh, Anoosh et al

Poster (2017)

Detailed reference viewed: 7 (1 ULg)