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See detailSpin-orbit misalignement for the transiting planet HD 80606b
Gillon, Michaël ULg

Report (2009)

A global Markov Chain Monte Carlo analysis of published eclipse photometry and radial velocities is presented for the transiting planet HD 80606b. Despite the lack of a complete transit light curve, the ... [more ▼]

A global Markov Chain Monte Carlo analysis of published eclipse photometry and radial velocities is presented for the transiting planet HD 80606b. Despite the lack of a complete transit light curve, the size of the planet is measured with a good level of precision (R_p = 1.04 +0.05-0.09 R_Jup), while the orbital parameters are refined. This global analysis reveals that the orbital axis of the planet is significatively inclined relative to the spin axis of the host star (Beta = -59 +18-28 deg), providing a compelling evidence that HD 80606b owes its peculiar orbit to the Kozai migration mechanism. [less ▲]

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See detailEvidence for a role of sleep in forgetting of irrelevant information
Collette, Fabienne ULg; Rauchs, Géraldine; Landeau, Brigitte et al

in NeuroImage (2009, June), 47(Suppl 1), 328-

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See detailStroop-related cerebral activity is modulated by time of day and chronotype
Schmidt, Christina; Peigneux, Philippe ULg; Leclerq, Yves et al

in NeuroImage (2009, June), 47(Suppl 1), 12-

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See detailMeasuring air-ice CO2 fluxes in the Arctic
Heinesch, Bernard ULg; Yernaux, Michel; Aubinet, Marc ULg et al

in FluxLetter: the Newsletter of FLUXNET (2009), 2(2), 9-10

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See detailThermal Design of the OUFTI-1 nanosatellite
Jacques, Lionel ULg

Master's dissertation (2009)

OUFTI-1 is the first nanosatellite developed at the University of Liège and even the first one ever made in Belgium. This student project takes place within the framework of a long-term goal program ... [more ▼]

OUFTI-1 is the first nanosatellite developed at the University of Liège and even the first one ever made in Belgium. This student project takes place within the framework of a long-term goal program called LEODIUM (Liège in Latin). The goal of this program is to provide hands-on experience to engineering students through the development of a series of nanosatellite for scientific experiments in cooperation with space industries of the region of Liège. OUFTI-1 will be the first satellite ever equipped with one of the latest digital amateur radio communication protocol : the D-STAR protocol. This technology represents one of the three payload of OUFTI-1, since one target of the mission is to test this new protocol in space. The two other payloads are high efficiency solar cells provided by Azur Space and an innovative electrical power system developed with Thales Alenia Space ETCA. OUFTI-1 will hopefully be launched on the new European launcher Vega with eight other student nanosatellites. This present thesis focuses on the thermal design of OUFTI-1 whose goal is to guarantee all components are functioning within their allowable temperature range. With this in mind, different thermal model of increasing complexity are developed within both Matlab/Simulink and ESATAN/ESARAD environments. based on their results, proper measures will be taken to ensure all the components works indeed in their allowable range of temperatures. [less ▲]

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See detailEndocrine-disrupting chemicals : an Endocrine Society scientific statement
Diamanti-Kandarakis, Evanthia; Bourguignon, Jean-Pierre ULg; Giudice, Linda C. et al

in Endocrine Reviews (2009), 30(4), 293-342

There is growing interest in the possible health threat posed by endocrine-disrupting chemicals (EDCs), which are substances in our environment, food, and consumer products that interfere with hormone ... [more ▼]

There is growing interest in the possible health threat posed by endocrine-disrupting chemicals (EDCs), which are substances in our environment, food, and consumer products that interfere with hormone biosynthesis, metabolism, or action resulting in a deviation from normal homeostatic control or reproduction. In this first Scientific Statement of The Endocrine Society, we present the evidence that endocrine disruptors have effects on male and female reproduction, breast development and cancer, prostate cancer, neuroendocrinology, thyroid, metabolism and obesity, and cardiovascular endocrinology. Results from animal models, human clinical observations, and epidemiological studies converge to implicate EDCs as a significant concern to public health. The mechanisms of EDCs involve divergent pathways including (but not limited to) estrogenic, antiandrogenic, thyroid, peroxisome proliferator-activated receptor gamma, retinoid, and actions through other nuclear receptors; steroidogenic enzymes; neurotransmitter receptors and systems; and many other pathways that are highly conserved in wildlife and humans, and which can be modeled in laboratory in vitro and in vivo models. Furthermore, EDCs represent a broad class of molecules such as organochlorinated pesticides and industrial chemicals, plastics and plasticizers, fuels, and many other chemicals that are present in the environment or are in widespread use. We make a number of recommendations to increase understanding of effects of EDCs, including enhancing increased basic and clinical research, invoking the precautionary principle, and advocating involvement of individual and scientific society stakeholders in communicating and implementing changes in public policy and awareness. [less ▲]

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See detailWeyrich, un QG en Ardenne
Habrand, Tanguy ULg

Article for general public (2009)

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See detailL'extension des droits politiques aux citoyens vivant à l'extérieur du territoire national à l'ère de la migration transnationale
Lafleur, Jean-Michel ULg

in EUI Working Papers (2009), (28), 1-21

Pourquoi un nombre croissant d'états décident-ils de permettre à leurs citoyens vivant à l'étranger de participer aux élections depuis l'extérieur du territoire national? Dans cet article, nous replaçons ... [more ▼]

Pourquoi un nombre croissant d'états décident-ils de permettre à leurs citoyens vivant à l'étranger de participer aux élections depuis l'extérieur du territoire national? Dans cet article, nous replaçons cette question dans le cadre de la modification des relations entre pays d'origine et émigré à l'heure de la migration transnationale. Toutefois, en questionnant le rôle des remises d'épargne et d'autres facteurs traditionnellement avancés pour expliquer l'évolution de ces relations, nous insistons également sur la dynamique politique interne des états d'origine pour comprendre le développement du droit de vote à l'extérieur. Ce papier, basé sur un travail de terrain au Mexique, en Italie et en Belgique, conclut en soulignant trois défis auxquels les états d'origine sont confrontés lors de l'extension des droits politiques à leurs citoyens émigrés. [less ▲]

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See detailL’évaluation de la morphosyntaxe chez des enfants d’âge scolaire (7-12 ans) : les épreuves issues de la batterie L2MA-2
Chevrie-Muller, Claude; Maillart, Christelle ULg

in Rééducation Orthophonique (2009), 238

The L2MA2 Battery for the evaluation of “Oral language, Written language, Memory and Attentional skills” in French-speaking children between the ages of 8 1/2 and 10 1/2 was published in 1997. Over ten ... [more ▼]

The L2MA2 Battery for the evaluation of “Oral language, Written language, Memory and Attentional skills” in French-speaking children between the ages of 8 1/2 and 10 1/2 was published in 1997. Over ten years after its initial publication, the battery was revised and significantly modified. It was then standardized on a population of French-speaking children (French and Belgian) between the ages of 7 1/2 and 11 1/2. Among its new features, the evaluation is administered in two steps (first and second levels). The first level of the L2MA-2 battery comprises 11 fixed tests which give a preliminary representation of the patient’s resources and difficulties. Depending on obtained results, the clinician can chose, among 19 complementary tests that are available on an optional basis, tests that can yield a more specific diagnosis. This article deals more specifically with 9 tests which can provide a comprehensive evaluation of the child’s morphosyntactic skills, dealing with expressive or receptive skills, with oral or written skills, in a targeted or integrated manner. [less ▲]

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See detailMicrobiological state of the art of walloon farm raw milk butter (2006 – 2009).
Godrie, Thérèse ULg; Di Tanna, Sybille ULg; Helleputte, Murielle ULg et al

in Fourteenth conference on food microbiology (2009, June)

For several years, Walloon Region has been supporting financially a project to help farmers: la Cellule Qualité Produits Fermiers (CQPF). This project aims to accompany farmers in their diversification ... [more ▼]

For several years, Walloon Region has been supporting financially a project to help farmers: la Cellule Qualité Produits Fermiers (CQPF). This project aims to accompany farmers in their diversification activities. In this context, Agricultural University of Gembloux, Department of Food Technology and “Centre d’Expertise pour la Qualité” have ensured and are ensuring autocontrol system implementation based on the HACCP principles, together with the application of good hygiene practice. In this context, microbiological analyses on farm raw milk butter have been performed. Results collected during the period from September 2006 to April 2009 are presented below. [less ▲]

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See detail“ARCHITECT FRIENDLY”: A COMPARISON OF TEN DIFFERENT BUILDING PERFORMANCE SIMULATION TOOLS
Attia, Shady ULg; Beltrán, Liliana; De Herde, André et al

in Proceedings of 11th International Building Performance Simulation Association Conference and Exhibition (2009, June)

A wide range of scientifically validated Building Performance Simulation tools BPS is available internationally. The users of those tools are mainly researchers, physicists and experts who value empirical ... [more ▼]

A wide range of scientifically validated Building Performance Simulation tools BPS is available internationally. The users of those tools are mainly researchers, physicists and experts who value empirical validation, analytical verification and calibration of uncertainty as defined by e.g. BESTEST. However, literature and comparative surveys indicate that most architects who use BPS tools in design practice are much more concerned with the (1) Usability and Information Management (UIM) of interface and (2) the Integration of Intelligent design Knowledge-Base (IIKB). Those two issues are the main factors for identifying a building simulation program as “Architect Friendly”. Now, with the advancement of BPS tools and the recent announcements of direct links between BIM or non-BIM modeling tools and BPS tools it is important to compare the existing programs. Based on an online survey, this paper presents the results of comparing ten major BPS tools. The following programs are compared: ECOTECT, HEED, Energy 10, Design Builder, eQUEST, DOE-2, Green Building Studio, IES VE, Energy Plus and Energy Plus-SketchUp Plugin (OpenStudio). With 249 valid responses, the survey ranked the tools in three classes and revealed that architects seek the IIKB above the UIM of the interface. Finally, the paper summarizes the key findings and underlines the major requirements for future improvement and development of BPS tools, mainly from an architectural perspective. [less ▲]

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See detail'Wat er hollandsch is moet stil zijn, zoet en stil gelijk een muis': literatuuronderwijs in de Zuidelijke provincies onder koning Willem I (1814-1830)
Steyaert, Kris ULg

in e-meesterwerk (2009)

When King William I decreed that Dutch would be the only ‘national language’ of the United Kingdom of the Netherlands (1814-1830), he expected teachers in the Southern provinces of the realm to promote ... [more ▼]

When King William I decreed that Dutch would be the only ‘national language’ of the United Kingdom of the Netherlands (1814-1830), he expected teachers in the Southern provinces of the realm to promote Dutch among the French-speaking population. This led to the production of an enormous number of Dutch grammars, pronunciation guides, phrase books, and dictionaries. Since reading Dutch authors was part of the curriculum, this vast body of textbooks also included literary histories and (bilingual) anthologies. An analysis of the literary textbooks aimed at Francophone learners of Dutch and published from the first few years of William I’s reign up to Belgium’s independence in 1830 reveals that they served a dual purpose, functioning to demonstrate the existence of a well-established Dutch literary tradition rivalling that of the major European languages, while providing practical tools in the language acquisition process. The authors of these materials varied in their methodological approach and selection criteria, but they were all working towards a common goal: to transform the French-speaking inhabitants of the country into proper, patriotic Dutchmen, often in the face of local opposition and hostility. [less ▲]

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See detailPlanning flood risk reducing measures based on combined hydraulic and socio-economic impact modelling at a micro-scale
Ernst, Julien ULg; Coninx, Ingrid; Dewals, Benjamin ULg et al

in Christodoulou, S. E. (Ed.) Proc. 7th Int. Conf. on Water Resources Conservancy and Risk Reduction Under Climatic Uncertainty (2009, June)

Risk management is currently shifting from the full protection against flooding towards the management of the consequences of flooding. To reduce these consequences, micro-scale analysis is compelled. In ... [more ▼]

Risk management is currently shifting from the full protection against flooding towards the management of the consequences of flooding. To reduce these consequences, micro-scale analysis is compelled. In addition to the hydraulic modelling of the inundation flow, nearby land use and vulnerability of elements-at-risk are taken into consideration. This new approach requests an interdisciplinary collaboration of scientists from hydraulic and social science, as is the case for this paper. The research teams have developed a methodology to evaluate socio-economic consequences of flooding based on the analysis at the micro-scale of the flood characteristics, the exposure and the vulnerability of elements-at-risk and the adaptive capacity of society. The hydrodynamic simulations are conducted by means of 2D flow modelling run on a highly accurate Digital Surface Model - DSM with a resolution of 2 by 2 meters. The two-dimensional modelling provides high resolution flood maps detailing the distribution of water depth and flow velocity field in the floodplains, which constitute key inputs for the subsequent flood risk analysis. The methodology will be illustrated for a case study along River Ourthe, which is the main tributary of River Meuse in Belgium, for selecting and designing flood protection measure. The geographic data in this area are available at a resolution consistent with the conducted micro-scale risk analysis. They include data on social vulnerability coming from the most recent socio-economic national survey (NIS). [less ▲]

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See detailLes difficultés morphosyntaxiques des enfants présentant des troubles spécifiques du langage oral: une approche constructiviste
Leroy, Sandrine ULg; Parisse, Christophe; Maillart, Christelle ULg

in Rééducation Orthophonique (2009), 238

The Construction and Usage-based Theory (CUT) combines two main approaches drawn from cognitive linguistics: construction grammar and usage-based theory. The CUT emphasizes the fact that language ... [more ▼]

The Construction and Usage-based Theory (CUT) combines two main approaches drawn from cognitive linguistics: construction grammar and usage-based theory. The CUT emphasizes the fact that language structures progressively emerge through the use of general cognitive processes. Most new forms produced by a child are built upon his/her own previous productions that he/she complexifies and generalizes to construct more abstract forms. These hypotheses have been tested with normally-developing children but have not yet been tested on children with specific language impairment (SLI). In this paper, we put forward several hypotheses drawn from constructivistic approaches to explain morphosyntactic difficulties displayed by children with SLI. Their goal is to create a theoretical framework for future behavioral studies. [less ▲]

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See detailPredictors and correlates of changes in residents' burnout level: Influence of person- and work-related variables
Bragard, Isabelle ULg; Etienne, Anne-Marie ULg; Libert, Yves et al

in Psycho-oncology (2009, June), 18 (Suppl. 2)

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See detailCommunication skills training: A study of residents' psychosocial and physiological variables which facilitate or inhibit the learning of assessment skills
Hasoppe, Jennifer; Merckaert, Isabelle; Libert, Yves et al

in Psycho-oncology (2009, June)

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See detailFusarioses sur blé d'hiver au Grand-Duché de Luxembourg
Giraud, Frédéric; Pasquali, Matias; Vrancken, Carine et al

in Phytoma - la Défense des Végétaux (2009), 622-623

Au Grand-Duché de Luxembourg, la campagne 2006-2007 a été caractérisée par un hiver relativement doux et un printemps pluvieux. Ces conditions météorologiques ont permis le développement de nombreuses ... [more ▼]

Au Grand-Duché de Luxembourg, la campagne 2006-2007 a été caractérisée par un hiver relativement doux et un printemps pluvieux. Ces conditions météorologiques ont permis le développement de nombreuses maladies cryptogamiques sur le blé d’hiver, dont la fusariose. Cette maladie a été suivie sur 17 sites couvrant le G-D de Luxembourg par des mesures de prévalence (pourcentage moyen d’épis visuellement infectés) et de sévérité (pourcentage moyen d’épillets atteints par épi). Des valeurs moyennes de 8,9± +/- 15,5 % pour la prévalence et de 21,0± +/- 17,8 % pour la sévérité ont été enregistrées avec des différences significatives entre les cantons nord et sud pour la sévérité. Plus de 600 souches isolées des 17 sites ont été identifiées suivant des critères morphologiques et l’emploi d’outils moléculaires. 5 espèces semblent associées à la fusariose : Fusarium graminearum (23,5 %), F. culmorum (12,8 %), F. poae (19,4 %) (3 espèces potentiellement productrices de mycotoxines), F. avenaceum (20 %) et Microdochium nivale (18,7 %). Cette étude est la première du genre à avoir été faite au Grand-Duché de Luxembourg. [less ▲]

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See detailAnalyse comparée de la formation des éducateurs sportifs en Algérie et en Communauté française de Belgique
Kerfes, Nabil; Boudaoud, Abdelyamine; Alem, Jaouad et al

Poster (2009, June)

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 sportifs est l ... [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 sportifs est l'une des préoccupation majeurs de toutes les sociétés cherchant le progrès et le développement, il existe de nombreuses raisons pour lesquelles les nouveaux étudiants choisissent leur avenir universitaire ou professionnel, ils abordent l'enseignement supérieur avec des dispositions diverses à l'égard du contenu de la formation et des professions sur lesquelles elle débouche. 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. En nous inspirant de deux études effectuées dans le domaine de la formation des éducateurs physiques dans des contextes culturels très différents (Groupe de recherche de MJS, 1983, pour l’Algérie – Groupe de recherche interuniversitaire, 2003, pour la Belgique francophone). L’objectif de cette recherche a dès lors consisté à déterminer les motifs qui incitent les étudiants à s'inscrirent aux études de diverses formations sportives, qu’ils soient universitaires ou non. Notre recherche s’est basée, d’une part, sur l’analyse des textes officiels relatifs à l’organisation des études supérieures dans le domaine sportif et, d’autre part, sur des données collectées auprès des acteurs impliqués dans quatre institutions de formation, deux de la région d’Alger et deux de la région liégeoise. Il convient de retenir que, dans chaque contexte culturel, une institution universitaire et une non universitaire ont été analysées. Nos résultats portent ainsi sur un échantillon total de 290 sujets (40 membres des staffs pédagogiques, 108 étudiants et 142 diplômés). Les formateurs ont été interviewés tandis que les sujets des deux autres groupes ont répondu à des questionnaires. La version arabe de chaque instrument a été traduite à partir des outils en français. Un expert en a assuré le contrôle de validité. Dans cet article, nous porterons notre attention sur l’analyse des réponses fournies par les trois types d’acteurs à deux questions fermées consistant à identifier le degré d’importance accordé par les sujets à des motifs d'inscription aux études en éducation physique et sportive, par l’intermédiaire d’échelles de Lickert à quatre niveaux. Les réponses ont été encodées dans une base de données informatique et traitées au moyen du logiciel Statistica (Stat Soft, 2006). Aucune différence significative n’est enregistrée dans la comparaison des réponses des sujets interrogés. Nous constatons toutefois que, d'une part, l'amour du sport et la volonté de pratiquer du sport sont parmi les plus importants des motifs de suivre cette formation, et d'autre part, dans les deux institutions belges, une importance plus grande est donnée à l'entraînement sportif, le contexte culturel ne semble pas non plus beaucoup influencer les avis des sujets interrogés. [less ▲]

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See detailLa validité de construit des épreuves physiques qui mesurent l’aptitude physique générale sportive des candidats pour une formation en sport au Maroc et en Algérie
Alem, Jaouad; Dadouchi; Kerfes, Nabil et al

Poster (2009, June)

A l’instar de certains chercheurs en sciences de l’éducation qui ont tenté de démontrer l’existence d’un facteur unique d’intelligence générale G, certains kinésiologues ont, eux aussi, longtemps cru en ... [more ▼]

A l’instar de certains chercheurs en sciences de l’éducation qui ont tenté de démontrer l’existence d’un facteur unique d’intelligence générale G, certains kinésiologues ont, eux aussi, longtemps cru en l’existence d’un facteur unique d’aptitude physique générale sportive (Thomas, 1989). Cette recherche analyse la validité de construit des épreuves physiques censées mesurer l’aptitude physique générale des candidats pour une formation supérieure en sport au Maroc (7 épreuves) et en Algérie (4 épreuves). La base de données est composée de 990 candidats masculins du Maroc et 491 de l’Algérie, âgés en moyenne de 20 ans. Les analyses factorielles en composantes principales avec rotation varimax des performances à ces épreuves aussi bien selon le genre des candidats que selon leur spécialité sportive révèlent systématiquement une solution factorielle en deux composantes qui se distinguent selon la durée du travail pour produire de l’énergie et qui prédisent plus de 50% de la variance du construit mesuré. La 1ière composante correspond à la puissance musculaire phosphagénique ou encore à la capacité de produire en moins de sept secondes du phosphate déjà présent dans les muscles, elle est définie par les autres épreuves physiques. La 2ième composante correspond à la puissance musculaire glycolytique ou encore à la capacité de produire du lactate en plus de 12 secondes, elle est définie par la course de vitesse et la course de résistance. Nos analyses n’ont pas démontré la validité de construit de 7 ou 4 dimensions différentes d’aptitude physique sportive mais plutôt l’existence de deux composantes différentes de la puissance musculaire. [less ▲]

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