References of "2009"
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See detailComparative analysis of large Nc QCD and quark model approaches to baryons
Buisseret, F.; Semay, C.; Stancu, Floarea ULg et al

in Acta Physica Polonica. B, Proceedings Supplement (2009), 2(2), 223-228

We show that a remarkable compatibility exists between the results of a potential model with constituent quarks and the 1/Nc expansion mass formula for strange and nonstrange baryon resonances. Such ... [more ▼]

We show that a remarkable compatibility exists between the results of a potential model with constituent quarks and the 1/Nc expansion mass formula for strange and nonstrange baryon resonances. Such compatibility brings support to the basic assumptions of relativistic quark models and sheds light on the physical content of the model-independent large Nc mass formula. Good agreement between both approaches is also found for heavy baryons, made of one heavy and two light quarks, in the ground state band. [less ▲]

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See detailGmsh: a three-dimensional finite element mesh generator with built-in pre- and post-processing facilities
Remacle, J.-F.; Geuzaine, Christophe ULg

in Proceedings of the 11th International Society of Grid Generation Conference (ISSG 2009) (2009)

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See detailLe fédéralisme « incompris » : perceptions et préférences d’un auditoire d’étudiants de l’ULg
Grandjean, Geoffrey ULg; Reuchamps, Min ULg; Flaba, Elodie ULg et al

in Revue de la Faculté de Droit de l'Université de Liège (2009), 54(3), 405-430

How do citizens who grew up in a federal system understand federalism in their country? To answer this important question, in an experimental design, we asked 234 French-speaking Belgian university ... [more ▼]

How do citizens who grew up in a federal system understand federalism in their country? To answer this important question, in an experimental design, we asked 234 French-speaking Belgian university students to “draw Belgium”. No other guidelines were given. In addition to this request, the students were asked to fill in a 19-question questionnaire about their federal perceptions and preferences as well as political and socio-demographic indicators. In this article, we analyze the results of the questionnaire and reflect on the relationships between representations and perceptions of federalism in Belgium. [less ▲]

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See detailUsefulness of procalcitonin for the decision of antibiotic treatment in ICU patients
LAYIOS, Nathalie ULg; LAMBERMONT, Bernard ULg; LEDOUX, Didier ULg et al

in Intensive Care Medicine (2009), 35(Suppl 1), 82

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See detailPedigree et autres romans
Simenon, Georges; Dubois, Jacques ULg; Denis, Benoît ULg

Book published by Gallimard (2009)

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See detailGenetic variability of milk fatty acids.
Arnould, Valérie ULg; Soyeurt, Hélène ULg

in Journal of Applied Genetics (2009), 50(1), 29-39

The milk fatty acid (FA) profile is far from the optimal fat composition in regards to human health. The natural sources of variation, such as feeding or genetics, could be used to increase the ... [more ▼]

The milk fatty acid (FA) profile is far from the optimal fat composition in regards to human health. The natural sources of variation, such as feeding or genetics, could be used to increase the concentrations of unsaturated fatty acids. The impact of feeding is well described. However, genetic effects on the milk FA composition begin to be extensively studied. This paper summarizes the available information about the genetic variability of FAs. The greatest breed differences in FA composition are observed between Holstein and Jersey milk. Milk fat of the latter breed contains higher concentrations of saturated FAs, especially short-chain FAs. The variation of the delta-9 desaturase activity estimated from specific FA ratios could explain partly these breed differences. The choice of a specific breed seems to be a possibility to improve the nutritional quality of milk fat. Generally, the proportions of FAs in milk are more heritable than the proportions of these same FAs in fat. Heritability estimates range from 0.00 to 0.54. The presence of some single nucleotide polymorphisms could explain partly the observed individual genetic variability. The polymorphisms detected on SCD1 and DGAT1 genes influence the milk FA composition. The SCD1 V allele increases the unsaturation of C16 and C18. The DGAT1 A allele is related to the unsaturation of C18. So, a combination of the molecular and quantitative approaches should be used to develop tools helping farmers in the selection of their animals to improve the nutritional quality of the produced milk fat. [less ▲]

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See detailSources of phenotypic variation of life history traits in an invasive species, Senecio inaequidens DC. (Asteraceae)
Monty, Arnaud ULg; Mahy, Grégory ULg

Conference (2009)

The importance of different sources of phenotypic variation, namely adaptation, phenotypic plasticity, environmental maternal effects, ploidy level and genetic drift, were estimated in several life ... [more ▼]

The importance of different sources of phenotypic variation, namely adaptation, phenotypic plasticity, environmental maternal effects, ploidy level and genetic drift, were estimated in several life history traits among populations of an invasive plant species within its invasion range. Several common garden experiments were set out, two of which in a reciprocal transplants experiment. The populations considered in this study were located in Belgium, in France and in the native range of the model species. Senecio inaequidens DC. (Asteraceae) is native to Africa. It was introduced in Europe via wool trade in the late 19th century. In the native range, the species occurs at two co-existing cytotypes: diploid and tetraploid. Only tetraploid individuals are reported in Europe. The particular and well-documented invasion history of S. inaequidens makes it an excellent plant model for evolutionary studies. Several life history traits were measured, related to germination, growth and sexual reproduction. The sources of phenotypic variation in those traits were analysed with respect to climatic variation along altitudinal gradients in the invaded areas. The influence of the ploidy level and the range (native vs introduced) on those traits was also analysed. Results showed that diploid and tetraploid populations differed, mainly in winter survival capacity. Along altitudinal gradients, clinal phenotypic differentiations with a genetic basis were observed among populations. However, environmental maternal effects were found to significantly influence phenotypic variation in areas with harsh climatic conditions. Monty A., Mahy G. 2009. Clinal differentiation during invasion: Senecio inaequidens (Asteraceae) along altitudinal gradients in Europe. Oecologia 159:305–315. Monty A., Lebeau J., Meerts P., Mahy G. 2009. An explicit test for the contribution of environmental maternal effects to rapid clinal differentiation in an invasive plant. Journal of Evolutionary Biology22: 917-936 [less ▲]

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See detailKino-Tanz. L'art chorégraphique du cinéma
Tomasovic, Dick ULg

Book published by Presses Universitaires de France (2009)

Et si le cinéma était d'abord un art chorégraphique ? Depuis toujours, sa préoccupation principale était l'invention de nouveaux agencements de corps et la recherche de nouveaux montages de mouvements ... [more ▼]

Et si le cinéma était d'abord un art chorégraphique ? Depuis toujours, sa préoccupation principale était l'invention de nouveaux agencements de corps et la recherche de nouveaux montages de mouvements. Mais l'idéologie de la mise en scène, venue du théâtre, a rendu cette préoccupation invisible. Pour la rendre à nouveau vivante, c'est toute lhistoire du cinéma qu'il faut relire à l'aune de la chorégraphie : passer du Kino-Glaz (« Ciné-il ») de Vertov à un nouveau Kino-Tanz (« Ciné-Corps » ou « Ciné-Danse »). De Fernand Léger à Michel Gondry, de Georges Méliès à David Lynch, de Pinocchio à Gene Kelly ou de Norman McLaren à Quentin Tarantino, le cinéma n'a jamais cessé de danser. Cest ce que démontre Dick Tomasovic, le plus original des théoriciens du cinéma d'aujourdhui, en onze chapitres qui sont eux-mêmes onze pas de deux, à la fois sidérants et aériens, où s'expérimentent tous les passages de l'idéologie de la mise en scène à l'idéal de la chorégraphie. Il y propose un vocabulaire inouï, bouleversant la manière que nous avions de regarder les films : un vocabulaire qui met au premier plan le rythme et la cadence, le flux et la fluidité, la reprise et la répétition, la mémoire musculaire, la transe et l'extase, le solo et le spectateur, etc. [less ▲]

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See detailLa problématique des méduses sur le plateau continental Ouest Corse, série de données et modélisation
Hecq, Jean-Henri ULg; Goffart, Anne ULg; Collignon, Amandine ULg et al

Conference (2009)

Depuis une dizaine d’années, les eaux côtières corses sont envahies les méduses et en particulier par les Pelagia noctiluca qui présentent une nuisance pour les eaux de baignade, les installations ... [more ▼]

Depuis une dizaine d’années, les eaux côtières corses sont envahies les méduses et en particulier par les Pelagia noctiluca qui présentent une nuisance pour les eaux de baignade, les installations aquacoles et hydrauliques côtières, interfèrent avec la pêche, colmatent les filets et entrent en compétition avec les poissons pour la nourriture. Leurs apparitions dans les eaux côtières sont généralement fortuites, discontinues dans les temps et dans l’espace et souvent sous forme d’essaims. Dans le cadre du programme MEDUSES, subsidié par l’Agence de l’Eau RMC, des observations visuelles directes et des comptages de Pelagia effectués depuis 2003 à partir du quai du port de STARESO montrent une augmentation graduelle de leur abondance de 2004 à 2005 suivie par une augmentation dramatique en 2006 puis une diminution significative les étés 2007 et 2008. La prolifération de Pelagia en 2006 succède à des biomasses particulièrement élevées de mésozooplancton en 2005. On peut émettre l’hypothèse que l’abondance exceptionnelle des proies planctoniques est une des causes de la prolifération. Les Pelagia vivent en essaims dont deux types sont observés en Baie de Calvi: des essaims passifs et des essaims actifs. Les essaims passifs observés dans le port de STARESO contiennent des individus généralement dégradés (perte des tentacules, du manubrium,..), voire moribonds mais qui restent urticants. Parfois réduits à la seule ombrelle, ils se déplacent peu et s’accumulent en grand nombre (parfois plus de 200 par m2), bord à bord, en essaims passifs limités aux trois premiers mètres de la surface. Ces essaims subissent une prédation active par de nombreux poissons sparidés (bogues, sars,...). Ils disparaissent en quelques heures du fait de cette prédation ou par sédimentation massive des animaux morts. Par contre, dans les eaux plus au large, nos mesures in situ de la distribution spatiale de Pelagia noctiluca montrent que durant les pics de 2006, de nombreux organismes sont présents à distance de la côte où ils forment des essaims actifs de 200 m de long et 50 m de large situés entre 10 à 60 m. Dans ces essaims actifs, on observe de 5 à 10 individus par m3. Ceux-ci sont équidistants et nagent activement avec les tentacules étendus, capturant la nourriture. Dans certains cas, des individus moribonds partiellement détruits ou à la fin de leur cycle biologique échappent des essaims actifs et dérivent passivement à la surface, sous l’action du vent et des mouvements de l’eau, vers les zones côtières. Entre ces deux types extrêmes d’essaims, divers cas intermédiaires existent. [less ▲]

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See detailEntre pays mosan et Champagne. Le trésor des reliques de Montier-en-Der
George, Philippe ULg

in Cahiers Archéologiques (2009)

Circulation des biens et des personnes au Moyen Age : l’étude des reliques comme objets historiques permet des recoupements extraordinaires, souvent insoupçonnés et très utiles, notamment pour l’histoire ... [more ▼]

Circulation des biens et des personnes au Moyen Age : l’étude des reliques comme objets historiques permet des recoupements extraordinaires, souvent insoupçonnés et très utiles, notamment pour l’histoire de l’art. Stavelot-Malmedy a réformé Montier-en-Der en Champagne au IXe siècle. Curieusement la liste des confraternités de l’abbaye de Stavelot-Malmedy (Cfr Commission Royale d’Histoire) ne mentionne pas Montier. C’est ailleurs qu’il faut rechercher les liens avec l’abbaye champenoise. Trois découvertes importantes font l’objet de cet article : les vestiges d’un important reliquaire mosan du Der, conservé aujourd’hui dans une collection privée anglaise, une mention supplémentaire d’Erlebald, frère de l’abbé Wibald, à ajouter au précédent inventaire (Le Moyen Age) et toujours l'orfèvre Godefroid de Huy ( Cfr Cahiers de Civilisation Médiévale). L’article aboutit à la reconstitution d’un important trésor bénédictin. [less ▲]

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See detailEvaluation of the endorcine disrupting chemicals contamination in the North Sea porpoise population using in vitro assays
Didimo Imazaki, Pedro Henrique ULg; Brose, François ULg; Van Der Heiden, Edwige ULg et al

Poster (2009)

During the last decades, the production endocrine disrupting chemicals reached such levels that they are now spread all over nature. They are known to be very slowly degraded, decreasing the environmental ... [more ▼]

During the last decades, the production endocrine disrupting chemicals reached such levels that they are now spread all over nature. They are known to be very slowly degraded, decreasing the environmental quality and posing ecological risks. Marine mammals inhabiting polluted environments accumulate high levels of these chemicals, so they can be considered good indicators of marine pollution. Thirteen major organochloride pollutants were chosen to make subject of this study: o,p’-DDD; p,p’-DDD; p,p’-DDE; o,p’-DDT; p,p’-DDT; HCB; α-HCH; β-HCH; γ-HCH; δ-HCH; PCB 138; PCB 153 and PCB 180. All these chemicals will have their endocrine disrupting effects characterized individually and collectively by report gene expression assays. The MCF7-ERE cells used in these assays were produced in the Molecular Biology and Genetic Engineering Laboratory of the University of Liège and are originated from a human mammary carcinoma. They carry a gene expressing the synthesis of luciferase and controlled by oestrogen receptors. Then, the thirteen chemicals will be searched in the blubber tissues of porpoises by the use of gas chromatography-mass spectrometry. The blubber samples will also have their endocrine disrupting effect characterized. For the moment, the estrogenic effects of the HCH isomers were put in evidence. The next steps of this work must be soon accomplished. It is expected a great level of these compounds to be found in the samples. On the other hand, their endocrine disrupting effects and how they act in agonist, antagonist and synergist ways are subject that still needs to be cleared. [less ▲]

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See detailContamination du marsouin commun (Phocoena phocoena) de la Mer du Nord par des perturbateurs endocriniens persistants
Didimo Imazaki, Pedro Henrique ULg

Master's dissertation (2009)

Endocrine disrupters are molecules able to interfere with the endocrine system and are largely spread in the environment. The evaluation of the estrogenic activity of some of these substances by reporter ... [more ▼]

Endocrine disrupters are molecules able to interfere with the endocrine system and are largely spread in the environment. The evaluation of the estrogenic activity of some of these substances by reporter gene assays was the first aim of this paper. The substances chosen are also persistent organic pollutants (POP), which are capable to bioaccumulate in several organisms. Then, the occurrence of these substances was evaluated in the blubber tissue of North Sea harbour porpoises (Phocoena phocoena). Harbour porpoises are good indicators of the environmental contamination and therefore of seafood by POP. These POP were quantified by GC-MS and also by reporter gene assays. For the achievement of these aims, different analytical methods were developed. The following raking is proposed for the studied substances, according to their estrogenic activity: o,p’-DDT > o,p’-DDD > β-HCH > p,p’-DDT > p,p’-DDD > p,p’-DDE > δ-HCH > PCB 138 > γ-HCH > α-HCH > PCB 153 > HCB > PCB 180. None of them presented anti-estrogenic activity. The analysed samples presented high levels of POP, sometimes associated with estrogenic activity, confirming the occurrence of endocrine disruptors in these animals. [less ▲]

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See detailClose-packed array of gold nanoparticles and Sum Frequency Generation spectroscopy in total internal reflection: A platform for studying biomolecules and biosensors
Tourillon, Gérard; Dreesen, Laurent ULg; Volcke, Cédric et al

in Journal of Materials Science (2009), 44(24), 6805-6810

An approach is introduced for studying the adsorption and recognition mechanisms of biomolecules, without using any markers. We show for the first time, that the Sum Frequency Generation spectroscopy ... [more ▼]

An approach is introduced for studying the adsorption and recognition mechanisms of biomolecules, without using any markers. We show for the first time, that the Sum Frequency Generation spectroscopy performed in the Total Internal Reflection (TIR-SFG) geometry, combined with a regular close-packed array of gold nanoparticles allows to probe with a high sensitivity the changes in conformation and orientation induced by the recognition process of avidin by biocytin. This approach represents a new platform with potential use in biosensors, diagnostics and bioactive layers. [less ▲]

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See detailDevelopment and Validation of a Markov Microsimulation Model for the Economic Evaluation of Treatments in Osteoporosis.
Hiligsmann, Mickaël ULg; Ethgen, Olivier ULg; Bruyère, Olivier ULg et al

in Value in Health (2009), 12(5), 687-696

ABSTRACT Objective: Markov models are increasingly used in economic evaluations of treatments for osteoporosis. Most of the existing evaluations are cohort-based Markov models missing comprehensive memory ... [more ▼]

ABSTRACT Objective: Markov models are increasingly used in economic evaluations of treatments for osteoporosis. Most of the existing evaluations are cohort-based Markov models missing comprehensive memory management and versatility. In this article, we describe and validate an original Markov microsimulation model to accurately assess the cost-effectiveness of prevention and treatment of osteoporosis. Methods: We developed a Markov microsimulation model with a lifetime horizon and a direct health-care cost perspective. The patient history was recorded and was used in calculations of transition probabilities, utilities, and costs. To test the internal consistency of the model, we carried out an example calculation for alendronate therapy. Then, external consistency was investigated by comparing absolute lifetime risk of fracture estimates with epidemiologic data. Results: For women at age 70 years, with a twofold increase in the fracture risk of the average population, the costs per quality-adjusted life-year gained for alendronate therapy versus no treatment were estimated at Euro 9105 and Euro 15,325, respectively, under full and realistic adherence assumptions. All the sensitivity analyses in terms of model parameters and modeling assumptions were coherent with expected conclusions and absolute lifetime risk of fracture estimates were within the range of previous estimates, which confirmed both internal and external consistency of the model. Conclusion: Microsimulation models present some major advantages over cohort-based models, increasing the reliability of the results and being largely compatible with the existing state of the art, evidence-based literature. The developed model appears to be a valid model for use in economic evaluations in osteoporosis. [less ▲]

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See detailAttentional and executive functioning following mild traumatic brain injury in children using the Test for Attentional Performance (TAP) battery
Catale, Corinne ULg; Marique, Patrica; Closset, Annette et al

in Journal of Clinical & Experimental Neuropsychology (2009), 31(3), 331-338

The interpretation of the data regarding cognitive outcome in children who have suffered from mild traumatic brain injury (MTBI) remains currently controversial. The aim of the present study is to explore ... [more ▼]

The interpretation of the data regarding cognitive outcome in children who have suffered from mild traumatic brain injury (MTBI) remains currently controversial. The aim of the present study is to explore attentional and executive functioning in 6–12-year-old children who experienced a MTBI. A total of 15 children with MTBI and 15 matched noninjured children participated in the study. Attentional tasks using the Test for Attentional Performance battery were administered one year after the injury. In comparison to the noninjury children, MTBI children performed less accurately on selective attentional and updating tasks. These preliminary findings support the view that MTBI can have an impact on specific attentional functioning in children one year postinjury. [less ▲]

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See detailActive Learning using Mean Shift Optimization for Robot Grasping
Kroemer, Oliver; Detry, Renaud ULg; Piater, Justus ULg et al

in IEEE/RSJ International Conference on Intelligent Robots and Systems (2009)

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See detailLa guerra dei Sei Giorni: lunedì, il giorno dell’attacco
Cuau, Ives; Ricciardi, Stefania ULg

in Barillari, Simone (Ed.) La guerra a un passo (2009)

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See detailTrans-ionospheric GPS signal delay gradients observed over mid-latitude Europe during the geomagnetic storms of October-November 2003
Stankov, Stanimir; Warnant, René ULg; Stegen, Koen

in Advances in Space Research (2009), 43(9), 1314-1324

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See detailThe main and accessory olfactory systems interact in the control of mate recognition and sexual behavior
Keller, M.; Baum, M. J.; Brock, Olivier ULg et al

in Behavioural Brain Research (2009)

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See detailSocial Enterprise: the Shaping of a New Concept in a Comparative Regional Perspective
Defourny, Jacques ULg; Nyssens, Marthe

in Defourny, Jacques; Develtere, Patrick; Fonteneau, Bénédicte (Eds.) et al The Worldwide Making of the Social Economy. Innovations and Changes (2009)

Detailed reference viewed: 81 (2 ULg)