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See detailTrophic niche width, shift, and specialization of Dascyllus aruanus in Toliara lagoon, Madagascar
Frederich, Bruno ULiege; Lehanse, Olivier; Vandewalle, Pierre ULiege et al

in Copeia (2010), 2010(2), 218-226

Intrapopulation diet specializations may result from the use of different dietary items or foraging tactics by individuals within a single population. The damselfish, Dascyllus aruanus, is a highly site ... [more ▼]

Intrapopulation diet specializations may result from the use of different dietary items or foraging tactics by individuals within a single population. The damselfish, Dascyllus aruanus, is a highly site-attached coral reef fish living in size hierarchies among branched corals. The trophic niche width and feeding specialization of this species were explored using stable isotopes and stomach content analyses. Intra-group niche variation was mainly related to fish size. Within social groups, D. aruanus gradually shifted its foraging tactics according to size; smaller fish fed on benthic prey such as isopods and copepods, and the larger fish foraged in the water column on planktonic copepods and larger-sized prey. Group density was found to explain some variation in trophic niche characteristics; greater specialization on prey size was observed in the colony having the highest density. All members of the largest colony foraged more frequently in the water column. Knowing that planktonic copepods are more energy-rich than benthic ones, a positive group-size effect facilitating access to preferred prey is suggested. Group size and group density effects on trophic specialization did not have any impact on body condition, suggesting that the behavioral plasticity of D. aruanus in its foraging strategies permits compensation for the maintenance of body conditions. [less ▲]

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See detailIdentification des objectifs et finalités de la formation des diplômés en éducation physique. Comparaison des situations algérienne et belge francophone
Kerfes, Nabil; Cloes, Marc ULiege

in Amans-assaga, Christine; Gal-Petitfaux, Nathalie; Terral, Philippe (Eds.) et al L'intervention en sport et ses contextes institutionnels: cultures et singularité de l'action (2010, May)

Toute formation supérieure a ses principes et ses particularités visant à développer des compétences en relation avec les finalités professionnelles disponibles. La formation des éducateurs est l'une des ... [more ▼]

Toute formation supérieure a ses principes et ses particularités visant à développer des compétences en relation avec les finalités professionnelles disponibles. La formation des éducateurs est l'une des préoccupations majeures de toutes les sociétés cherchant le progrès et le développement. Ce travail se situe dans le champ de l'éducation comparée, il propose une lecture compréhensive de deux systèmes de formation dans un esprit d'ouverture et d'élargissement des connaissances. ... [less ▲]

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See detailRelations familiales internationales - l'actualité vue par la pratique
Wautelet, Patrick ULiege

Book published by Anthemis - Collection Commission Université Palais (2010)

This book which is the result of the joint efforts of 5 young authors who combine academic expertise with practical experience of international family law disputes, takes a practical approach to the most ... [more ▼]

This book which is the result of the joint efforts of 5 young authors who combine academic expertise with practical experience of international family law disputes, takes a practical approach to the most common international family law issues which may arise in Belgium. Looking at recent case law and developments in both the EU and the Hague Conference, the book offers students, practitioners and interested readers insight into the cross-border relationships between spouses and partners and between parents and children. In order to offer the reader the most practical information, the book is framed around 50 practical cases, inspired by case law and the practical experience of the authors. These cases are discussed with a view to outline the reasoning which must be followed to determine which court has jurisdiction, which law will apply and how to cope with a foreign judgment. Among the issues discussed by the authors are child abduction, cross-border adoption, foreign surrogacy agreements, recognition of foreign repudiation. In analyzing these issues, the authors take into account the latest case law on international instruments such as the Brussels IIbis Regulation and various Hague Conventions. [less ▲]

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See detailLow-rank optimization on the cone of positive semidefinite matrices
Journee, Michel ULiege; Bach, F.; Absil, P.-A. et al

in SIAM Journal on Optimization (2010), 20(5)

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See detailEnfants en et hors traitements oncologiques : analyse comparative de leur qualité de vie et de leur vécu émotionnel
Missotten, Pierre ULiege; Badot, Isabelle; Hoyoux, Claire et al

Poster (2010, May)

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See detailPetits dîners entre amis (et rivaux): prix, réseaux littéraires et stratégies de consacrants
Dozo, Björn-Olav ULiege; Lacroix, Michel

in COnTEXTES : Revue de Sociologie de la Littérature (2010), 7

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See detailComment les écrivains sont consacrés en Belgique
Dozo, Björn-Olav ULiege; Provenzano, François ULiege

in COnTEXTES : Revue de Sociologie de la Littérature (2010), 7

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See detailActive solar retrofit of a residential house, a case study in Egypt
Attia, Shady ULiege

in Proceedings of the National Solar Conference 2010 (2010, May)

There are extraordinary opportunities to reduce the consumption of fossil energy in retrofitting existing buildings in Egypt. For instance, South Tahrir (150km northwest of Cairo) falls in the arid ... [more ▼]

There are extraordinary opportunities to reduce the consumption of fossil energy in retrofitting existing buildings in Egypt. For instance, South Tahrir (150km northwest of Cairo) falls in the arid climate zone with an annual-average daily global irradiation value of 23.76 MJ/m2 and for diffuse irradiation they are 9.65 MJ/m2 for Cairo and approximately 3300 hours of full sunshine. However, in extreme climates like Egypt, conditions show relatively high demand for cooling and heating energy. To overcome this problem and to examine these opportunities, this study evaluated the active solar retrofit of a passive house built in South Tahrir city. The aim of the study was to investigate the potential of active solar retrofits. The building performance was evaluated using TRNSYS, and monitored during two years of occupancy (2004-2006) to evaluate the performance and energy/carbon emissions reduction. The research took into consideration active design strategies such as solar thermal domestic water heating, photovoltaic panels and solar thermal air conditioning. First, the performance of the passive house before and after the retrofit was represented and compared. The house thermal and electric loads were compared to the solar thermal and electric production. Then results were evaluated to assess the suitability of each strategy based on energy performance. The final result of this study proved theoretically the feasibility of installing solar hot water collectors and solar thermal air conditioning. For this specific location and climate conditions an active solar retrofit of the residential house is energetically rewarding. Future solutions should address all of the thermal loads (cooling, heating, DHW) with thermal energy collection and only the electric loads (internal loads and auxiliary components) with photovoltaic collection. However, as long as the prices of electricity are highly subsidized the active solar retrofit is still considered not be cost effective. [less ▲]

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See detailRole of the netrin-like domain of procollagen C-proteinase enhancer-1 in the control of metalloproteinase activity.
Bekhouche, M.; Kronenberg; Colige, Alain ULiege et al

in Journal of Biological Chemistry (2010), 285(21), 15950-9

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See detailDéfis pour réduire la mortalité liée à l'hépatite C: améliorer l'accessibilité au traitement et l'observance thérapeutique
Delwaide, Jean ULiege; Lamproye, Anne ULiege; Belaiche, Jacques ULiege

in Revue Médicale de Liège (2010), 65(5-6), 354-357

Current therapies with pegylated interferon and ribavirin are effective to eradicate the virus C. Improvements in the treatment are foreseen in the near future with combination of the current treatment ... [more ▼]

Current therapies with pegylated interferon and ribavirin are effective to eradicate the virus C. Improvements in the treatment are foreseen in the near future with combination of the current treatment with antiviral therapies (antiproteases, antipolymerases). Eradication of the virus, when obtained, has a favorable impact on an individual basis. However, to reduce the mortality related to the virus C at a population level, an important point is the accessibility to the therapy. It has been calculated that the impact of better management of hepatitis C to reduce mortality is minimal, due to a poor accessibility to the therapy. To obtain a significant additional reduction of mortality, a better screening, a better access to therapy and a better compliance are crucial. [less ▲]

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See detailCops’ creation and evolution sustained by ICT tools and services
Denis, Brigitte ULiege; Fontaine, Perrine ULiege

in Dirckinck-Holmfeld, L.; Hodgson, V.; Jones, C. (Eds.) et al Proceedings of the 7th International Conference on Networked Learning 2010 (2010, May)

This paper reports the representations and practices evolution of two CoPs’ members of the domain of education who used ICT tools and services supporting collaborative edition and documents production ... [more ▼]

This paper reports the representations and practices evolution of two CoPs’ members of the domain of education who used ICT tools and services supporting collaborative edition and documents production. These artefacts related to multimedia authoring, knowledge management and mediation are based on the respect of standards allowing data accessibility, reusability and interoperability.They have been developed within the framework of the European project PALETTE through a participatory design process in which these CoPs were involved. <br />The evolution of the CoPs’ members’ representations and practices was observed through answers to a questionnaire (before and after the activities), the individual logbooks weekly handled by the participants, interviews and their productions. <br />First, we observed that the use of several tools or services allows the members to become more <br />competent in the domain of the ICT in terms of practices and technological literacy. They discover more transverse functions through the tools and feel more comfortable when using new interfaces. <br />This also decreases fears of certain members who had negative representations regarding ICT. <br />Then, the scenarios concretely offered to the CoPs’ members to live collaborative activities supported by ICT artefacts. They could exchange ideas, resources and knowledge. These experiments enabled them to refine their representations about collaborative learning and to get reference tools to support their future activities. They declared the use of these artefacts allowed the emergence of a CoP but also the development of the feeling of belonging to a CoP. The tasks realization during the trials created some common interests between the members. For many of them it was their first experiment in collaborative edition. They learned favourable modes and codes to produce and exchange when carrying on this kind of task. They also perceived the importance of the role of a CoP animator. <br />As for the production of documents, the discovery of several new tools allowed the CoPs’ members to compare them with different editors and examine their advantages and disadvantages. Even if the tools were not still or sufficiently accepted and adopted by the members, this comparison allowed a certain awareness of the importance of standards, exchangeable documents and durability of data. [less ▲]

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See detailPrescription inappropriée chez la personne âgée : une forme d’inertie thérapeutique ? Généralités et opportunités pour la pharmacie clinique en gériatrie
Samalea Suarez, Audrey ULiege; Gerard, Xavier ULiege; Petermans, Jean ULiege et al

in Revue Médicale de Liège (2010), 65(5-6), 256-260

therapeutic inertia is a phenomenon with multiple etiologies, characterized by a «lack of initiation or modification of therapy when appropriate» and mainly affecting common chronic diseases (hypertension ... [more ▼]

therapeutic inertia is a phenomenon with multiple etiologies, characterized by a «lack of initiation or modification of therapy when appropriate» and mainly affecting common chronic diseases (hypertension, diabetes, dyslipidemia). caused by various processes including the lack of clinical evidence for the elderly, it can lead, in the elderly fragile by nature, to inappropriate prescribing. in a multidisciplinary approach, integrating the expertise of a pharmacist in the health care team improves the pharmacotherapeutic management of the geriatric patient. [less ▲]

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See detailObservance thérapeutique en gériatrie
Petermans, Jean ULiege; Samalea Suarez, Audrey ULiege; Van Hees, Thierry ULiege

in Revue Médicale de Liège (2010), 65(5-6), 261-266

L’observance thérapeutique peut être définie comme le degré de concordance entre le comportement d’un individu (en termes de prise médicamenteuse, suivi de régime et changement de style de vie) et les ... [more ▼]

L’observance thérapeutique peut être définie comme le degré de concordance entre le comportement d’un individu (en termes de prise médicamenteuse, suivi de régime et changement de style de vie) et les prescriptions ou recommandations médicales, soit plus simplement la capacité d’une personne à prendre un traitement selon une prescription donnée. La mauvaise observance est fréquente en gériatrie et est liée à la fois au comportement du patient, mais aussi des prescripteurs et des distributeurs de médicaments. Son impact est à la fois médical, fonctionnel et économique; ce suivi thérapeutique mal adapté est un des responsables de la pathologie iatrogène si souvent constatée chez la personne âgée. Afin de faire face de la manière la plus efficace possible à cette problématique, une démarche standardisée d’éducation thérapeutique doit être développée en définissant clairement les objectifs, les moyens et le suivi, en impliquant le patient quand cela est possible et en mettant en place des aides humaines et matérielles [less ▲]

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See detailSizing Photovoltaic Systems during Early Design A Decision Tool for Architects
Attia, Shady ULiege; De Herde, André

in Conference proceedings of American Solar Energy Society - 2010 (2010, May)

Despite all the available solar technologies and the opportunity to reduce energy demand, solar energy systems are in most cases not used in buildings today. The lack of technical knowledge among ... [more ▼]

Despite all the available solar technologies and the opportunity to reduce energy demand, solar energy systems are in most cases not used in buildings today. The lack of technical knowledge among architects is one of the main barriers according to the IEA-Task 41 entitled Solar Energy and Architecture [1]. In fact, several problems face architects during the design and set-up of buildings that integrate PV systems, for example, the complexity and uncertainty of estimating the PV performance. To overcome this problem and to examine these opportunities, this study developed a decision tool to guide architects to size PV systems during early design stages. The aim of the study was to help give architects a generic idea of the potential of PV as an energy source and how to integrate PV in the building architecture. The tool is based on a transient simulation database built using TRNSYS16 and underlies research considering PV technology parameters and local climatic conditions of Egypt. Simulations of three PV systems are compared with measured data in order to form a basis for optimal design and prediction of PV system performance. For this tool we developed and presented simple graphical visualization of the verified performance indices. For example, yearly maximum output energy of PV modules, for different inclinations and orientations for Aswan, Alexandria and Cairo. The overall benefit of this simple decision tool is informing and assisting architects and designers in order to increase the use of solar energy in buildings [less ▲]

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See detailUsing prior knowledge to accelerate online least-squares policy iteration
Busoniu, Lucian; De Schutter, Bart; Babuska, Robert et al

in Proceedings of the 2010 IEEE International Conference on Automation, Quality and Testing, Robotics (2010, May)

Reinforcement learning (RL) is a promising paradigm for learning optimal control. Although RL is generally envisioned as working without any prior knowledge about the system, such knowledge is often ... [more ▼]

Reinforcement learning (RL) is a promising paradigm for learning optimal control. Although RL is generally envisioned as working without any prior knowledge about the system, such knowledge is often available and can be exploited to great advantage. In this paper, we consider prior knowledge about the monotonicity of the control policy with respect to the system states, and we introduce an approach that exploits this type of prior knowledge to accelerate a state-of-the-art RL algorithm called online least-squares policy iteration (LSPI). Monotonic policies are appropriate for important classes of systems appearing in control applications. LSPI is a data-efficient RL algorithm that we previously extended to online learning, but that did not provide until now a way to use prior knowledge about the policy. In an empirical evaluation, online LSPI with prior knowledge learns much faster and more reliably than the original online LSPI. [less ▲]

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See detailInertie clinique et observance thérapeutique dans les valvulopathies chroniques du coeur gauche.
Moonen, Marie ULiege; Leroux, Aurélia ULiege; Lancellotti, Patrizio ULiege et al

in Revue Médicale de Liège (2010), 65(5-6), 290-8

Valvular heart diseases are of increasing importance among the general adult population. When compared with other heart diseases, there are few trials in the field of valvular heart disease and randomized ... [more ▼]

Valvular heart diseases are of increasing importance among the general adult population. When compared with other heart diseases, there are few trials in the field of valvular heart disease and randomized clinical trials are particularly scarce. Two sets of guidelines exist: one in the USA and the other in Europe. However, they are not always consistent due to the lack of randomized data and it appears that, frequently, there is a gap between the existing guidelines and their effective application. [less ▲]

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See detailCommunication financière : Un outil pour améliorer la liquidité des entreprises françaises
Sougné, Danielle ULiege; Ajina, Aymen ULiege

in Revue Banque = Banque Magazine (2010)

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See detailInfluence de l'ajout de co-solvant pour l'estérification du D-mannose et de l'acide D-glucuronique assistée par les lipases
Richard, Gaetan ULiege; Brognaux, Alison ULiege; Nott, Katherine ULiege et al

Poster (2010, May)

En parallèle à la production de biocarburant, le second objectif du bioraffinage est la transformation des sucres issus de l’hydrolyse de la lignocellulose en produits d’intérêt, qui se substitueront aux ... [more ▼]

En parallèle à la production de biocarburant, le second objectif du bioraffinage est la transformation des sucres issus de l’hydrolyse de la lignocellulose en produits d’intérêt, qui se substitueront aux produits de la vie courante issus du pétrole. L’une des voies de valorisation envisageable est la synthèse de molécules amphiphiles par greffage de chaînes grasses sur le sucre. Ces composés trouveraient alors des applications dans de très nombreux domaines utilisant les tensioactifs (alimentaire, détergence, peinture,…) . Dans le cadre du programme d’excellence TECHNOSE et du projet d’Action de Recherche Concertées SUPERZYM, deux sucres ont été testés : un polyol, le D-mannose, et un sucre acide, l’acide D-glucuronique. Afin de conférer un caractère amphiphile à la molécule, les lipases ont été utilisées en tant qu’outils d’estérification. Ces triglycérides hydrolases sont en effet capables de catalyser ce type de réaction, et de nombreux exemples dans la littérature démontrent le fort potentiel industriel de ces enzymes , . L’estérification du D-mannose et de l’acide D-glucuronique a donc été mise en œuvre en présence de la lipase de Candida antarctica B (Novozyme 435). La réaction est effective, mais l’ajout de co-solvants tels que la pyridine ou le DMSO améliore les vitesses initiales et les rendements de la réaction. Ces améliorations seront discutées et comparées sur ce poster. [less ▲]

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