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See detailMarabout : ex-géant mondial de l'édition industrielle
Durand, Pascal ULg; Habrand, Tanguy ULg

Article for general public (2012)

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See detailVignette thérapeutique de l'étudiant. Quelles cibles tensionnelles viser chez un patient diabétique de type 2?
Krzesinski, Jean-Marie ULg; Scheen, André ULg

in Revue Médicale de Liège (2012), 67

L'hypertension artérielle est fréquemment observée chez le patient diabétique de type 2 et aggrave le pronostic cardio-vasculaire et rénal. Abaisser la pression artérielle représente donc un objectif ... [more ▼]

L'hypertension artérielle est fréquemment observée chez le patient diabétique de type 2 et aggrave le pronostic cardio-vasculaire et rénal. Abaisser la pression artérielle représente donc un objectif essentiel dans cette population. Cependant, les valeurs de pression systolique et diastolique à atteindre restent controversées et la cible doit sans doute être ajustée en fonction des caractéristiques individuelles du patient ("médecine personnalisée"). Cette vignette clinique résume les principaux arguments à propos du choix des cibles tensionnelles, en termes de rapport bénéfices/risques, selon que le patient diabétique présente un syndrome métabolique sans complications, une néphropathie ou une insuffisance coronaire. [less ▲]

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See detailL'astronomie dans le monde
Manfroid, Jean ULg

Article for general public (2012)

Rotation folle;SS Leporis; Kepler; Rayons cosmiques; Trous noirs géants; Comète Lovejoy

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See detailFast-GC quantifacation of harmonine, the major defense alkaloid of the multicolored Asian ladybird Harmonia axyridis (Pallas)
Fischer, Christophe ULg; Laurent, Pascal ULg; Heuskin, Stéphanie ULg et al

in American Journal of Analytical Chemistry (2012), 3

These last few years the multicolored Asian ladybird, Harmonia axyridis (Pallas), previously introduced in Europe and North America as a biological control agent, has swiftly spread out on those ... [more ▼]

These last few years the multicolored Asian ladybird, Harmonia axyridis (Pallas), previously introduced in Europe and North America as a biological control agent, has swiftly spread out on those territories and turns out to be a pest in several ways. In order to improve understanding of several key points of the biology of this ladybird, a novel fast-GC method of quantification of harmonine, the main defense alkaloid of H. axyridis, has been designed and validated using the accuracy profile concept for concentrations ranging from 13 to 264 µg/individual. This method allows quantifying harmonine in a single insect with a maximal error risk of 20%. For ladybirds collected in spring, mean harmonine concentration observed was 106.6 µg/individual with a very high standard deviation of 80.2 µg/individual, which can easily be explained by the strong asymmetry of the results distribution. Males and females seem equally chemically protected as the harmonine concentration did not significantly differ between sexes. This method is currently used to improve our comprehension of several key points of H. axyridis biology including aggregation behavior and aposematism. [less ▲]

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See detailDu travail sur Soi au gouvernement de Soi
Vrancken, Didier ULg; Macquet, Claude ULg

in Informations Sociales (2012), 169

Proposant un retour sur l’idée assez répandue de travail sur Soi, les auteurs montrent combien celle-ci s’inscrit dans un profond mouvement de recomposition des politiques sociales et de régulation de ... [more ▼]

Proposant un retour sur l’idée assez répandue de travail sur Soi, les auteurs montrent combien celle-ci s’inscrit dans un profond mouvement de recomposition des politiques sociales et de régulation de société. Tout un ensemble de techniques, de procédures, d’interventions voient le jour pour mettre les usagers des dispositifs à l’épreuve d’eux-mêmes. Mais au-delà, sans doute se soucierait-on plus des modalités de gouvernement mêmes des populations que des populations elles-mêmes, comme si importait avant tout le problème de la gestion des dispositifs, de l’administration de la question sociale. [less ▲]

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See detailNumerical computations of hypersonic boundary layer roughness induced transition on a at plate
Serino, Gennaro ULg; Pinna, Fabio; Rambaud, Patrick et al

Scientific conference (2012, January)

The work is focused on numerical simulations of roughness induced transition for hypersonic ow on a at plate wall mounted roughness element. Numerical simulations are compared to experimental results in ... [more ▼]

The work is focused on numerical simulations of roughness induced transition for hypersonic ow on a at plate wall mounted roughness element. Numerical simulations are compared to experimental results in order to resemble the physics highlighted in the tests. In particular, stress has been placed on the detection of the vortices in the wake behind the roughness element and on the onset of transition. [less ▲]

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See detailPuede la ficcón ayudar a la comprensión sociológica
Jacquemain, Marc ULg

Scientific conference (2012, January)

La ponencia plantea las tres maneras de utilización de la ficción en sociología : como informe sobre ciertas realidades sociales, como elucidación del espíritu de una región o una época, y como ... [more ▼]

La ponencia plantea las tres maneras de utilización de la ficción en sociología : como informe sobre ciertas realidades sociales, como elucidación del espíritu de una región o una época, y como ilustración de conceptos teóricos. La presentación utiliza ejemplos de películas (Guillermo del Tero, Iñarritu), o de novelas (Umberto Eco, Milan Kundera, Eric Emmanuel Schmitt) [less ▲]

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See detailBiodiversité et aménagement du territoire : vers une stratégie territoriale de conservation de la nature en Wallonie ?
Sérusiaux, Emmanuël ULg; Dopagne, Claude ULg; Melin, Eric ULg et al

Report (2012)

Dans le cadre du diagnostic du Schéma de Développement de l’Espace Régional (SDER, 2011) mené par la Conférence Permanente de Développement Territorial (CPDT), une analyse scientifique et ... [more ▼]

Dans le cadre du diagnostic du Schéma de Développement de l’Espace Régional (SDER, 2011) mené par la Conférence Permanente de Développement Territorial (CPDT), une analyse scientifique et prospective des enjeux territoriaux liés à la problématique de la biodiversité est proposée pour la Wallonie. Dans un premier temps, l’atteinte des objectifs spécifiques du SDER (1999) est examinée. Ensuite, partant des tendances d’évolution observées, les besoins adressés par la thématique « biodiversité » au territoire wallon sont définis, quantifiés et spatialisés. Ces propositions concrètes et scientifiquement argumentées sont destinées à alimenter la construction d’une stratégie globale de conservation de la nature en région wallonne. [less ▲]

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See detailDynamic Prediction of Energy Delivery Capacity of Power Networks : Unlocking the Value of Real-Time Measurements.
Schell, Peter; Jones, Lauren; Mack, Philippe et al

in Proceedings of the third IEEE PES Conference on Innovative Smart Grid Technologies (2012, January)

This paper describes recent advances in prediction software using advanced data-mining tools, and shows how this can significantly increase the operational value of the data gathered. These new tools ... [more ▼]

This paper describes recent advances in prediction software using advanced data-mining tools, and shows how this can significantly increase the operational value of the data gathered. These new tools allow for new operational procedures to be defined that increase the usages of the network without decreasing security of supply. We will use the example of dynamic line rating, i.e. determining the thermal rating of an overhead line based on real-time environmental parameters (temperature, wind speed & direction and solar radiation) to highlight how the use of numerical data-mining tools can help us reliably predict future behavior of power networks. [less ▲]

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See detailPratiques unilatérales
Sibony, Anne-Lise ULg; Marty, Frédéric

in Concurrences : Revue des Droits de la Concurrence (2012), 1-2012

Comm. eur., 22 juin 2011, Telekomunikacja Polska, aff. COMP/39525 La Commission européenne condamne l’opérateur historique polonais de télécommunications pour avoir abusé de sa position dominante en ... [more ▼]

Comm. eur., 22 juin 2011, Telekomunikacja Polska, aff. COMP/39525 La Commission européenne condamne l’opérateur historique polonais de télécommunications pour avoir abusé de sa position dominante en entravant l’accès de nouveaux entrants au marché de l’Internet. [less ▲]

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See detailStudy of 2-Ethanolamine degradation
Léonard, Grégoire ULg; Toye, Dominique ULg; Heyen, Georges ULg

Conference (2012, January)

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

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

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See detailMobilité: la saga du tram à Liège
Thoreau, François ULg

Article for general public (2012)

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See detailComputational Optimisation for Zero Energy Building Design, Interviews with Twenty Eight International Experts
Attia, Shady ULg

Report (2012)

Given the implication of designing Net Zero Energy Buildings (NZEBs), which involves complex passive and active design strategies, the use of computational automated optimization techniques is becoming ... [more ▼]

Given the implication of designing Net Zero Energy Buildings (NZEBs), which involves complex passive and active design strategies, the use of computational automated optimization techniques is becoming more essential. Therefore, this structured interviews aims to assess gaps, needs and problems considering the integration of optimization techniques to support the design of NZEBs. This work is part of the International Energy Agency (IEA) Task 40: Towards Net Zero Energy Buildings Subtask B. The objective of this report is to gain an understanding of how experts currently use optimization tools, which tools they use, the major limitations they have encountered, and their vision for the future of optimization of Net Zero Energy Buildings. With this information disseminated, it is anticipated that soft ware developers will be better informed of the needs of building design processionals. A qualitative study design was employed, using semi structured interviews. Optimization experts working in academia and practice were recruited. The participants were identified from the IBPSA Conference Proceedings between 1995 and 2010. A sampling framework was developed to include experts in the study from Europe and North America. These groups represented the range of possible optimization users, from researchers and designers considered optimization in the design of net zero or high performance buildings. A list of potential optimization experts was created and circulated between the IEA Task 40 Subtask members. Also every interviewed expert was asked to revise the list and add any potential candidate to be interviewed. [less ▲]

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See detailAnaphore et anaphoriques: variété des langues, variété des emplois
Denizot, Camille ULg; Dupraz, Emmanuel

Book published by Presses des universités de Rouen et du Havre (2012)

Le volume aborde l'anaphore sans se lier à une théorie déjà fixée : il est conçu dans une perspective contrastive qui vise seulement à préparer une synthèse typologique. Il s'attache à des langues ... [more ▼]

Le volume aborde l'anaphore sans se lier à une théorie déjà fixée : il est conçu dans une perspective contrastive qui vise seulement à préparer une synthèse typologique. Il s'attache à des langues diverses (anglais, français contemporain et médiéval, grec ancien, vieil-irlandais, italien, latin), dans une perspective globalement synchronique, sans pour autant exclure les phénomènes de grammaticalisation. Y sont étudiés des genres textuels variés, littéraires, oraux, voire émis par des locuteurs atteints de troubles du langage. Les approches sont elles aussi multiples (fonctionnement, notamment sémantique, de tel grammème ; calcul de la référence ; emplois discursifs, littéraires ou plus spontanés). L’ouvrage propose un parcours des échelles qui permettent l’étude de l’anaphore. [less ▲]

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See detailBioindicator of Genotoxicity: the Allium cepa test
Tedesco, S; Laughinghouse IV, Haywood ULg

in Srivastava, J.K. (Ed.) Environmental Contamination (2012)

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See detailProceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology (FLASY12)
de Medeiros Varzielas, I.; Hambrock, C.; Hiller, G. et al

Conference (2012)

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See detailEffet de l'érythromycine sur le traitement par boues activées
Louvet, Jean-Noël ULg; Giammarino, Cinzia; Dumas, Dominique et al

Poster (2012)

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See detailDomain-specific regular acceleration
Boigelot, Bernard ULg

in International Journal on Software Tools for Technology Transfer (2012), 14(2), 193-206

The regular model-checking approach is a set of techniques aimed at exploring symbolically infinite state spaces. These techniques proceed by representing sets of configurations of the system under ... [more ▼]

The regular model-checking approach is a set of techniques aimed at exploring symbolically infinite state spaces. These techniques proceed by representing sets of configurations of the system under analysis by regular languages, and the transition relation between these configurations by a transformation over such languages. The set of reachable configurations can then be computed by repeatedly applying the transition relation, starting from a representation of the initial set of configurations, until a fixed point is reached. In order for this computation to terminate, it is generally needed to introduce so-called acceleration operators, the purpose of which is to explore in one computation step infinitely many paths in the transition graph of the system. A simple form of acceleration operator is one that is associated to a cycle in the transition graph, computing the set of states that can be obtained by following this cycle arbitrarily many times. The computation of acceleration operators is strongly dependent on the type of the data values that are manipulated by the system, and on the symbolic representation chosen for handling sets of such values. In this survey, we describe acceleration operators suited for the regular state-space exploration of systems relying on FIFO communication channels, as well as those based on integer and real variables. [less ▲]

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See detailLe role de la genetique et de l'environnement dans le developpement de l'endometriose.
Ballester, M.; Dehan, Pierre ULg; BELIARD, Aude ULg et al

in Revue Médicale de Liège (2012), 67(5-6), 374-80

Endometriosis is usually described as a complex multifactorial disease involving dysregulation of estrogen metabolism, inflammatory and immunological mechanisms. Recently, many authors have questioned the ... [more ▼]

Endometriosis is usually described as a complex multifactorial disease involving dysregulation of estrogen metabolism, inflammatory and immunological mechanisms. Recently, many authors have questioned the environmental pollution and toxins in the formation and development of endometriotic lesions. Therefore, while dioxins and PCBs have been implicated, insufficient data are available until now to confirm this theory. Endometriosis has also been considered as a genetic disease. Indeed, early familial aggregation and twin studies noted a higher risk of endometriosis among relatives. However, demonstration of a genetic component in the pathogenesis of such a multifactorial disease is quite difficult due to many limitations such as ethnic differences, involvement of environmental factors and size of needed patients cohorts. Over the last decade, the epigenetic approach (DNA methylation, histones modifications and microRNA) has allowed to consider many new perspectives. Indeed, dysregulation (hyper- or hypomethylation) of many genes has already been highlighted. This method of analysis is the subject of numerous studies in order to develop diagnostic, prognostic and therapeutic tools for this disease which is becoming a real public health problem. [less ▲]

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