References of "Scientific congresses and symposiums"
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See detailOn the modeling of convective drying tests on soil samples in non-isothermal conditions
Gerard, Pierre ULg; Léonard, Angélique ULg; Charlier, Robert ULg et al

in Tsotsas, E.; Metzger, T.; Peglow, M. (Eds.) Proceedings of IDS 2010 - Drying 2010 (2010, October)

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See detailAssessment of modelling uncertainties in long-term climate projections: the ASTER project
Loutre, M. F.; Mouchet, Anne ULg; Fichefet, T. et al

Conference (2010, October)

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See detailEffect of kynurenic acid on sensitivity to cortical spreading depression in rats
Chauvel, Virginie ULg; Vamos, Eniko; Pardutz, Arpat et al

Poster (2010, October)

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See detailPEPTIDE-LOADED LIPOSOMES AGAINST BREAST CANCER: EFFECTIVE PENETRATION IN CELLS OF LONG CIRCULATING pH-SENSITIVE VESICLES
Ducat, Emilie ULg; Deprez, Julie ULg; Peulen, Olivier ULg et al

Poster (2010, October)

Purpose: Print3G, a peptidic antagonist of oncoprotein involved in breast cancer, could reduce the angiogenic development of breast tumors. The necessity of intravenous administration of Print3G led to ... [more ▼]

Purpose: Print3G, a peptidic antagonist of oncoprotein involved in breast cancer, could reduce the angiogenic development of breast tumors. The necessity of intravenous administration of Print3G led to the development of liposomes as drug carriers, combining the protective properties of PEG with the transfection properties of pH-sensitive lipids. The purpose of this work is to compare pegylated pH-sensitive liposomes with a classical formulation of long-circulating liposomes in terms of cellular uptake. Methods: Classical liposomes (SPC:CHOL:mPEG-750-DSPE (47:47:6 mol/mol)) and pH-sensitive liposomes (DOPE:CHEMS:CHOL: mPEG750-DSPE (43:21:30:6 mol/mol)) were compared in terms of size, charge, stability, pH-sensitivity and toxicity by inhibition of cell proliferation. Finally, confocal microscopy was used to study the cellular uptake of liposomes by three cell lines (Hs578t, WI-26 and MDA-MB-231), using 25-nitrobenzoxydiazol-cholesterol as a fluorescent marker of the vesicular membrane and rhodamine in the inner cavity of liposomes. Results: Sizes of 162.8 ± 4.6 nm and zeta potential of -9.3 ± 1.2 mV were obtained for standard liposomes (n=3) while the obtained values for pH-sensitive liposomes (n=3) were respectively of 184.8 ± 3.2 nm and -19.5 ± 2.6 mV. The two formulations were comparable in terms of shape and stability. Concerning the pH-sensitivity study, a significantly higher leakage of the encapsulated material was observed at pH 5 for pH-sensitive liposomes. Confocal pictures obtained with these vesicles on the three cell lines allowed us to visualize the colocalized red and green color with a higher concentration near the nucleus. Conclusion: Long circulating pH-sensitive liposomes are promising drug delivery systems in terms of cellular uptake. Experiments will be performed with biotinylated Print3G to assess its cellular distribution. Moreover, the accumulation of this formulation in breast tumor will be evaluated by in vivo studies. [less ▲]

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See detailRECENT TRENDS IN HOT STRIP ROUGHING MILLS: HIGH CHROMIUM STEEL VERSUS SEMI-HSS
Lecomte-Beckers, Jacqueline ULg; Tchuindjang, Jérôme Tchoufack ULg; Sinnaeve, Mario et al

in Procceedings of the 47th Rolling Seminar - Processes, Rolled and Coated Products (2010, October)

compared. The first grade known as High Chromium Steel (HCS) is presently the most widely used alloy for such an application, while the second one known as semi-High Speed Steel (semi-HSS) is the new ... [more ▼]

compared. The first grade known as High Chromium Steel (HCS) is presently the most widely used alloy for such an application, while the second one known as semi-High Speed Steel (semi-HSS) is the new grade developed to improve the overall performance of the work roll in the roughing stands of the HSM. In the present paper, the new semi-HSS grade is studied starting from three chemical compositions closed one to another, the variation in the alloying elements is intended to assess, on one hand the effect of a small increase of the carbon content, and on the other hand the influence of the addition of a strong MC carbide forming element. Furthermore, corrosion behavior and performances of the work rolls in service are compared. Various techniques are used in order to characterize both grades, such as Differential Thermal Analysis (to determine phase transformations temperatures, the crystallization behavior and the interval of solidification), hardness measurements, optical microscopy, scanning electron microscopy associated with energy dispersive X ray spectroscopy (to determine the nature and the composition of phases, especially matrix and carbides). Finally micro-macro relations between the nature of the microstructure and the properties of High Chromium Steel and semi-HSS rolls grades in service conditions could be established. [less ▲]

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See detailEffectiveness of zoledronic acid in the prevention and treatment of glucocorticoid-induced osteoporosis in men and premenopausal women
Saag, k; Roux, C.; Devogelaer, J. P. et al

in Arthritis and Rheumatism (2010, October), 62(10), 902-903

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See detailRelationship between changes in bone mineral density or bone turnover markers and vertebral fracture incidence in patients treated with bazedoxifene
Bruyère, Olivier ULg; Detilleux, Johann ULg; Akadi, Chines et al

in Arthritis and Rheumatism (2010, October), 62(10), 406-407

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See detailJellyfish outbreaks in the Bay of Calvi (Corsica)
Hecq, Jean-Henri ULg; Goffart, Anne ULg; Collignon, Amandine ULg et al

Conference (2010, October)

The interannual variations of the Schyphozoan jellyfish Pelagia noctiluca is estimated by weekly measurements in the Bay of Calvi (Corsica) from 2003. The mean annual abundance reaches a dramatic maximum ... [more ▼]

The interannual variations of the Schyphozoan jellyfish Pelagia noctiluca is estimated by weekly measurements in the Bay of Calvi (Corsica) from 2003. The mean annual abundance reaches a dramatic maximum in 2006. The medusae appear by migration of active swarms on the shelf and at the external limit of the Bay. Degraded individuals drift as passive swarms, throughout inner side of the Bay and embayment. [less ▲]

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See detailComparaison de l'évaluation des propriétés de transport tranpéritonéal au moyen d'un dialysat "conventionnel" par rapport à un nouveau dialysat dit "biocompatible"
Van Overmeire, Lionel ULg; Goffin, E.; Bovy, Philippe et al

in Néphrologie & Thérapeutique (2010, September 30), 6

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See detailEvolution nutritionnelle des patients hémodialysés du CHBAH
Meurice, C.; Smelten, Nicole; Furnemont, L. et al

Poster (2010, September 30)

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See detailLe VEGF-111 comme nouvel outil thérapeutique des lésions tendineuses
Kaux, Jean-François ULg; Drion, Pierre ULg; Libertiaux, Vincent ULg et al

in 3ème Congrès Commun SFMS - SFTS (2010, September 30)

Introduction : Les lésions tendineuses sont très fréquentes en traumatologie du sport et deviennent fréquemment chroniques. Pour ces raisons, de nouvelles thérapeutiques sont en cours de développement ... [more ▼]

Introduction : Les lésions tendineuses sont très fréquentes en traumatologie du sport et deviennent fréquemment chroniques. Pour ces raisons, de nouvelles thérapeutiques sont en cours de développement. Les injections de concentrés plaquettaires (platelet-rich plasma ou PRP) semblent constituer en ce sens une voie encourageante. Elles agissent par libération locale de divers facteurs de croissance parmi lesquels le VEGF-A (vascular endothelial growth factor-A), connu pour induire un effet positif sur la fonction vasculaire et l’angiogenèse, serait impliqué dans le processus cicatriciel des tendons. Récemment, une nouvelle isoforme du VEGF-A a été identifié : le VEGF-111. Celui-ci est une isoforme biologiquement active du VEGF-A, résistant à la protéolyse et aussi connu pour présenter un effet bénéfique sur les pathologies ischémiques. Pour ces raisons, nous avons pensé que le VEGF-111 pourrait avoir un intérêt thérapeutique pour les pathologies tendineuses. Matériel et méthode : 60 rats de souche Sprague-Dawley adultes ont été séparés en 2 groupes (A: groupe contrôle sans traitement et B: groupe traité par une injection de VEGF-111). Chez ces rats, un défaut de 5mm dans le tendon d’Achille a été réalisé après résection du tendon du plantaire grêle. Les 30 rats du groupe B ont alors bénéficié d’une injection in loco de 100ng de VEGF-111. Les rats ont été euthanasiés par groupe de 20 (10 du groupe A et 10 du groupe B) respectivement à J5, J15 et J30 et le tendon d’Achille en cours de régénération a été disséqué et prélevé. Une étude biomécanique de traction jusqu’à rupture a été réalisée à l’aide de mors type « cryo-jaw ». Résultats : L’analyse de nos résultats montre que la force nécessaire pour rompre le tendon lors du test de traction, était plus importante pour les tendons du groupe B. Ces résultats peuvent être observés dès le 5ème jour. Le rapport entre la force et la masse corporelle du rat augmente dans les 2 groupes avec le temps, mais cette augmentation est plus importante pour les tendons du groupe B. La surface de section du tendon de groupe B s’accroit plus rapidement entre les jours 5 et 15 et ensuite se stabilise. Après 30 jours, les sections tendineuses sont similaires dans les 2 groupes. Enfin, dans le groupe B, les contraintes nécessaires pour obtenir la rupture du tendon, en tenant compte de l’accroissement de sa section, sont similaires entre les jours 5 et 15 et augmentent après un mois. Conclusion : Cette expérience a démontré qu’une injection de 100ng de VEGF-111 stimulait le processus de cicatrisation tendineuse en augmentant la résistance du tendon et les contraintes nécessaires pour rompre celui-ci. D’autres expérimentations avec différentes concentrations de VEGF-111 sont actuellement en cours. [less ▲]

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See detailEffect of parent materials and land use on soil phosphorus characteristics in Southern Belgium
Renneson, Malorie ULg; Dufey, Joseph; Bock, Laurent ULg et al

Conference (2010, September 29)

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See detailOptimization of ligand-binding assay in a QbD environment. Use of Bayesian non-linear regression to set up probability profile as quality response
Lebrun, Pierre ULg; Boulanger, Bruno ULg; Hubert, Philippe ULg

Conference (2010, September 28)

For ligan-binding assay, different parameters are controlled in routine. In a development phase, we will show how design of experiment can be used to select these parameters to obtain reliable results in ... [more ▼]

For ligan-binding assay, different parameters are controlled in routine. In a development phase, we will show how design of experiment can be used to select these parameters to obtain reliable results in the future use of the ELISA test. Uncertainties of measurements and models should be taken into account in a predictive manner. Bayesian modelling and MCMC simulations are well suited for this purpose and are flexible enough to include random effects on the parameters on non-linear model. We will focus on 4PL regression as it is encountered in most applications. We will also show that deriving a quality response such as a precision profile is clear and direct in the Bayesian setting. The approach is fully compliant with QbD guidelines and Design Space definition. [less ▲]

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See detailKnowledge-based approaches for degradation mapping in arid rangeland
Mahyou, Hamid ULg; Tychon, Bernard ULg; balaghi, Riad

Poster (2010, September 28)

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See detailEvolution nutritionnelle des patients hémodialysés du CHBAH
Meurice, C.; Smelten, Nicole; Furnemont, L. et al

in Néphrologie & Thérapeutique (2010, September 28), (6), 393-394

La dénutrition touche les patients en hémodialyse surtout lorsqu'ils ont plus de 50 ans et plus de 5 ans de dialyse. En 2006, nous avions observé que les patients dialysés (n = 27) ne consommaient pas le ... [more ▼]

La dénutrition touche les patients en hémodialyse surtout lorsqu'ils ont plus de 50 ans et plus de 5 ans de dialyse. En 2006, nous avions observé que les patients dialysés (n = 27) ne consommaient pas le taux de protéines et de calories recommandé. Depuis, nous avons élargi nos régimes. Cette présente étude évalue l'impact de cette nouvelle attitude nutritionnelle chez les anciens (n=11) et les nouveaux patient (n=10). [less ▲]

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See detailCold adaptation of proteins: a biophysical study of a psychrophilic alpha-amylase and its stabilized mutants
Cipolla, Alexandre ULg; D'Amico, Salvino ULg; Feller, Georges ULg

Poster (2010, September 28)

Habitats of permanently cold temperature, like polar regions for example, have been colonized by a great variety of psychrophilic organisms producing enzymes adapted to function efficiently in these cold ... [more ▼]

Habitats of permanently cold temperature, like polar regions for example, have been colonized by a great variety of psychrophilic organisms producing enzymes adapted to function efficiently in these cold environments. According to the hypothesis developed in our laboratory, the adaptation to cold temperature involves relationships between activity, flexibility and stability. Even if activity and stability are not physically linked in proteins 1, the consensus for the adaptive strategy is to take advantage of the lack of selective pressure for stable proteins to lose stability, therefore increasing the flexibility or mobility of the enzyme at low temperatures that restrict molecular motions. 2 Working on alpha-amylase, we have investigated the role of weak interactions in thermal adaptation of proteins by site-directed mutagenesis. We have built two multiple-mutants (Mut5 and Mut5CC) of the psychrophilc alpha-amylase (AHA) from the Antarctic bacterium, Pseudoalteromonas haloplanktis. The single mutations were selected by comparison of the presence of weak interactions in a mesophilic chloride-dependant homolog from pig pancreas, PPA. The study of selected single mutations prompt us to construct two multiple-mutants, Mut5 and Mut5CC, carrying 5 and 6 additional weak interactions found in PPA, that showed an increased stability and a lower activity at 25 °C.3 We have compared AHA, Mut5 and Mut5CC with additional methods like differential scanning calorimetry, thermal and chemical unfolding in order to determine the gain in stability. We also studied the flexibility or breathing of the enzymes by acrylamide-induced fluorescence quenching and we determined the optimum activity temperature for the three amylases. In order to investigate the kinetic origin of the gain in stability 4 for the two multiple-mutants, we studied in a first step the kinetic unfolding and refolding by GdmCl of the three amylases by manual methods following fluorescence signal at 15°C. The newly introduced weak interactions stabilized the proteins, protected them against heat and chemical unfolding and also induced an effective loss of flexibility. In addition, the two multiple-mutants exhibit a different optimum activity temperature than AHA. The first result in manual kinetic studies seems to show a similar refolding phase but a difference between the three amylases in the unfolding phase. This is in correlation with results of Dieter, P et al 4. These results and those of the previous work 3, unambiguously support the capital role of weak interactions in the balance between activity, flexibility and stability and provide a better knowledge of the adaptation of enzymes to cold temperatures. [less ▲]

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See detailComparaison of the flower scents of two Impatiens species
Marlet, Christelle ULg; Lognay, Georges ULg; Jacquemart, Anne-Laure et al

Poster (2010, September 27)

The Giant balsam, Impatiens glandulifera Royle (Balsaminaceae) was introduced in Europe from the Himalayas as a garden ornamental plant in 1839. Due to its great success from nursery gardeners (1), it is ... [more ▼]

The Giant balsam, Impatiens glandulifera Royle (Balsaminaceae) was introduced in Europe from the Himalayas as a garden ornamental plant in 1839. Due to its great success from nursery gardeners (1), it is now considered as one of the 100 worst invasive species in Europe. On the contrary, the native I. noli-tangere L. is considered to be in decline. Both species are annuals that absolutely need reproductive output to maintain or extend their populations. High fecundity has frequently been associated with invasiveness. However, traits controlling the reproductive success like pollinator attractiveness have not yet been assessed. The alien species is profusely visited by bumblebees which constituted the main visitors and efficient pollinators (2-3). The native also presents traits linked to insect attractiveness. Flowers produced similar quantities of nectar with the same sugar concentration and composition than the exotic. Therefore, the native could be considered as valuable source of nectar for pollinators. Despite the fact that nectar reward is likely to influence pollinator attractiveness, I. noli-tangere only occasionally received visits. Indeed, a flower of the native is 40 times less visited than a I. glandulifera flower (3). Differences in visitation rates may be explained by several factors, as floral scents, UV patterns or floral display. In summer 2009, a first comparative study of floral scents between these two species was performed. An active sampling in a small glass chamber able to contain single flower left on the plant had been performed on a sorbent tube with Carbograph and Tenax TA. The volatiles of floral scents had been analysed by thermal desorption coupled to gas chromatography and mass spectrometry (4, 5). The composition of flower scents on the basis of area percent of identified peaks had been compared. Terpenes (d-limonene, α-terpinolene, p-cymene, α and β-terpineol) were emitted by the flowers of both species. Higher monoterpenes proportion in area percent was detected for the native species. Terpenes such as β-myrcene, 1,4-cineole, eucalyptol, carveol were absent in the flower scent of the alien I. glandulifera. However, the alien presented a higher alcane proportion. The implication of terpenes in the attractiveness of bumblebees will be studied. [less ▲]

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See detailHydropower: An Essential Partner of Renewable Energy Source
Lejeune, André ULg; Hui, Samuel; Pirotton, Michel ULg et al

in Sayigh, Ali (Ed.) World Renewable Energy Congress XI (2010, September 25)

In 2006, the 17 percent of the world’s electricity that was generated from hydropower represented nearly 90 percent of renewable electricity generation worldwide; Hydropower is an important source of ... [more ▼]

In 2006, the 17 percent of the world’s electricity that was generated from hydropower represented nearly 90 percent of renewable electricity generation worldwide; Hydropower is an important source of renewable energy and produces extremely small quantities of carbon dioxide. Between 1998 and 2008, renewable electricity production in the world rose from 2,794.9 to 3,762.6 TWh, i.e. an additional 967.6 TWh. As a final conclusion, despite hydropower’s high initial costs, its long-term overall costs tend to be low. The average cost of electricity production by hydropower is still very attractive for the moment. In the next future, hydropower will keep his position, in front of the other renewable sources of electricity, on the same level with biomass, better that wind power and much cheaper than solar energy. [less ▲]

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See detailSedation and locoregional Anesthesias of the head in the horse
Verwilghen, Denis ULg

Conference (2010, September 25)

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See detailOù ai-je posé mes clefs ? Les erreurs de glissement de mémoire dans le vieillissement normal et pathologique
Guerdoux, Estelle; Dressaire, Deborah; Martin, Sophie et al

Poster (2010, September 24)

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See detailDéficits d’inhibition dans le vieillissement normal et la maladie d’Alzheimer: pas d’atteinte spécifique aux niveaux de traitement perceptif ou moteur
Stawarczyk, David ULg; Grandjean, Julien ULg; Salmon, Eric ULg et al

Poster (2010, September 24)

Introduction. Une diminution des capacités d’inhibition est fréquemment observée dans le vieillissement normal et la maladie d’Alzheimer. Toutefois, peu d’études ont exploré la généralité de ces déficits ... [more ▼]

Introduction. Une diminution des capacités d’inhibition est fréquemment observée dans le vieillissement normal et la maladie d’Alzheimer. Toutefois, peu d’études ont exploré la généralité de ces déficits au sein d’un groupe unique de participants. Objectif. Déterminer si les déficits d’inhibition présents dans le vieillissement normal et la maladie d’Alzheimer sont en accord avec la distinction entre inhibition perceptive et inhibition motrice proposée par Dempster et Corkill (1999). Méthode. Nous avons administré une large batterie d’épreuves d’inhibition à un groupe de participants jeunes, de participants âgés sains et de patients souffrant de maladie d’Alzheimer. L’inhibition perceptive a été évaluée au moyen des épreuves de Stroop et de priming négatif, de la tâche des ailiers et d’une tâche de résolution de conflit perceptif ; l’inhibition motrice a quant à elle été évaluée au moyen de tâches de go/no-go, de stop-signal, d’antisaccade et de résolution de conflit moteur. Résultats. Les résultats obtenus indiquent la présence d’un pattern mixte de déficits, incluant à la fois des épreuves d’inhibition motrice et d’inhibition perceptive, aussi bien chez les sujets âgés sains que chez les patients souffrant de la maladie d’Alzheimer. Des différences qualitatives de performance ont également été observées entre les deux groupes de sujets âgés. Discussion. Nos résultats ne sont pas en la faveur d’une distinction entre inhibition motrice et perceptive. Les déficits d’inhibition observés dans le vieillissement normal peuvent être interprétés dans le sens d’une diminution générale des ressources de traitement tandis que les déficits des patients Alzheimer peuvent être attribués à une capacité réduite de résistance à l’interférence provenant d’informations non pertinentes dans l’environnement externe de la personne. La présence de différences qualitatives de performance entre les deux groupes de sujets âgés semble indiquer que la maladie d’Alzheimer ne consiste pas en une simple accentuation des difficultés déjà observées lors du vieillissement normal. [less ▲]

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See detailOrthodontic corrections (Overjet/overbite) foals and osteodistraction adult horse
Verwilghen, Denis ULg

Conference (2010, September 24)

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See detailNIR AND RAMAN SPECTROSCOPY AS PAT TOOLS FOR THE MANUFACTURING OF SILICONE-BASED DRUG RESERVOIRS
Mantanus, Jérôme ULg; Ziemons, Eric ULg; Van Butsele, Kathy et al

Conference (2010, September 24)

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See detailL’âge de la retraite affecte-t-il le fonctionnement cognitif de la personne âgée?
Adam, Stéphane ULg; Bonsang, Eric; Perelman, Sergio ULg

Conference (2010, September 23)

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See detailDes idéologies aux dénominations et des dénominations à l'histoire : les enjeux de la terminologie métalinguistique dans l'historiographie du français d'Acadie et de Louisiane
Urbain, Emilie ULg

Conference (2010, September 23)

Par l’analyse d’un ensemble de textes rédigés aussi bien par des anglophones que des francophones d’Amérique du Nord dans la seconde moitié du 20e siècle, nous nous proposons d’envisager les conceptions ... [more ▼]

Par l’analyse d’un ensemble de textes rédigés aussi bien par des anglophones que des francophones d’Amérique du Nord dans la seconde moitié du 20e siècle, nous nous proposons d’envisager les conceptions présidant à la rédaction de l’histoire de la langue. Par le biais de l’étude de la dénomination des variétés de langue (qu’il s’agisse des variétés vernaculaires ou de la variété prise comme étalon de référence), nous mettons au jour les idéologies et représentations linguistiques bien vivantes qui transparaissent derrières des catégorisations souvent considérées comme consensuelles. La mise en rapport des choix terminologiques et des hypothèses historiographiques défendues (encore très diversifiées) semble montrer comment les idéologies orientent la description historique. Ce n’est pas seulement dans les thèmes développés qu’elles se reflètent, mais aussi dans les événements ou polémiques passés sous silence. Dans des contextes comme l’Acadie et la Louisiane, où le français est minoritaire, la place de la langue dans l’affirmation identitaire est prépondérante. Au même titre que l’histoire, la religion et la culture, elle fait l’objet de représentations qui ont pu se marquer dans tous les types de discours. Cependant, il peut paraître paradoxal, dans ces deux ensembles francophones hétérogènes, que l’histoire de la langue soit aussi parcellaire et toujours subordonnée à d’autres problématiques et préoccupations. Il s’agira, lors de cette présentation, d’esquisser des réflexions sur les conséquences de ce traitement historiographique conditionné de la langue ainsi que sur les conditions sociohistoriques et sociolinguistiques qui peuvent expliquer une telle situation. [less ▲]

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See detailInvestigating the intraspecific biodiversity of the threatened rodent Leopoldamys neilli in Southeast Asia
Latinne, Alice ULg; Waengsothorn, Surachit; Herbreteau, Vincent et al

Conference (2010, September 23)

We study the phylogeography of Leopoldamys neilli, a threatened murine rodent species endemic to limestone karsts of Thailand, in order to assess the influence of its endemicity to karstic habitat on its ... [more ▼]

We study the phylogeography of Leopoldamys neilli, a threatened murine rodent species endemic to limestone karsts of Thailand, in order to assess the influence of its endemicity to karstic habitat on its intraspecific biodiversity and phylogeographic pattern. Samples of L. neilli were collected in limestone karsts from 20 localities in seven provinces of Thailand. Two mitochondrial markers, the cytochrome b gene (cytb) and the cytochrome c oxydase subunit I gene (COI), were sequenced for 115 L. neilli individuals. A nuclear fragment, the β-fibrinogen intron 7 (bfibr), was amplified in a subset of 65 samples. Phylogenetic reconstructions and median joining networks were used to explore relationships between haplotypes of the studied populations. Haplotype and nucleotide diversities of the main lineages were estimated for each locus. Divergence times of the main lineages of L. neilli were estimated using Bayesian inference. The demographic histories of the main lineages of L.neilli were also examined. Our study gave evidence of a strong geographic structure of the genetic diversity for L. neilli. Six highly differentiated genetic lineages were observed in the phylogenetic and phylogeographic analyses. These lineages are allopatric and correspond to particular regions of Thailand. They exhibit very high degree of genetic divergence and gene flows between them are extremely low. Within each lineage, the levels of haplotype and nucleotide diversities are very low for each gene. These results suggest a severe fragmentation of L. neilli’s populations, correlated to the fragmented distribution of its habitat and highlight its high endemicity to limestone karsts. The strong phylogeographic pattern of L. neilli and the very ancient separation of some lineages could be explained by the geological history of Thailand during Tertiary and Quaternary era. In conclusion, this study revealed an unexpectedly high level of intraspecific biodiversity within the species L. neilli. These results consolidate the importance to strengthen the protection of limestone habitats and to preserve not only their huge interspecific but also intraspecific biodiversity. [less ▲]

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See detailWho Are Ready to Vote at 16? New Perspectives in the Study of Political Reasoning
Fournier, Bernard ULg

Conference (2010, September 23)

The question of lowering the voting age to 16 has long been debated in university circles. In the last Austrian elections, young people aged 16 and older were invited to vote, even if young people ... [more ▼]

The question of lowering the voting age to 16 has long been debated in university circles. In the last Austrian elections, young people aged 16 and older were invited to vote, even if young people themselves are divided over this issue, even hostile to the idea. Nevertheless, isn’t such a question, which is rarely discussed by the larger public and touches on several dimensions of a person’s life, an ideal topic for a debate, where the confrontation of ideas may change opinions and reveal – or even modify – young people’s global attitudes towards political interest and participation? A non-random sample of nearly two hundred 16- to 22-year-old youth in French-speaking Belgium was selected to discuss the possibility of lowering the voting age to 16, as well as political interest and political participation, during one day with four experts. The same questionnaire was filled in in the beginning and at the end of the day to measure the changes in opinion. But those changes are not the most interesting ones in this research. When we analysed the discussions of the young people during the focus groups, it was possible to bring out real patterns of political reasoning in the discourses. The first results presented here open interesting research paths, particularly for the study of political socialization. [less ▲]

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See detailComparison and combination of spectroscopic techniques for the detection of counterfeit medicines
Sacré, Pierre-Yves ULg; Deconinck, Eric; De Beer, Thomas et al

Poster (2010, September 23)

During this study, Fourier transform infrared spectroscopy (FT-IR), near infrared spectroscopy (NIR) and Raman spectroscopy were applied to 55 samples of counterfeit and imitations of Viagra® and 39 ... [more ▼]

During this study, Fourier transform infrared spectroscopy (FT-IR), near infrared spectroscopy (NIR) and Raman spectroscopy were applied to 55 samples of counterfeit and imitations of Viagra® and 39 samples of counterfeit and imitations of Cialis®. The aim of the study was to investigate which of these techniques and associations of them were the best for discriminating genuine from counterfeit and imitation samples. Only the regions between 1800-400 cm-1 and 7000-4000 cm-1 were used for FT-IR and NIR spectroscopy respectively. Partial Least Square analysis has been used to allow the detection of counterfeit and imitation tablets. It is shown that for the Viagra® samples, the best results were provided by a combination of FT-IR and NIR spectroscopy. On the other hand, the best results for the Cialis® samples were provided by the combination of NIR and Raman spectroscopy (1400-1190 cm-1). These techniques permitted a clear discrimination between genuine and counterfeit or imitation samples but also the distinction of clusters among illegal samples. This might be interesting for forensic investigations by authorities. [less ▲]

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See detailEpitaxial Si, SiGe and Ge for high-performance devices
Loo, Roger; Hikavyy, Andriy; Vincent, Benjamin et al

Conference (2010, September 23)

Detailed reference viewed: 99 (5 ULg)
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See detailImpact of the Asian ladybeetles’ invasions on agro-ecosystems (Belgium)
Vandereycken, Axel ULg; Durieux, Delphine ULg; Joie, Emilie ULg et al

Conference (2010, September 23)

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See detailLimit Cycle Oscillations of a Delta Wing in a Low Speed Wind Tunnel
Korbahti, Banu; Kagambage, Emile ULg; Andrianne, Thomas ULg et al

in Proceedings of ISMA2010 (2010, September 22)

Limit cycle oscillations involving Delta wings are an important area of research in modern aeroelasticity. Such phenomena can be the result of structural or aerodynamic nonlinearity. In this paper, a ... [more ▼]

Limit cycle oscillations involving Delta wings are an important area of research in modern aeroelasticity. Such phenomena can be the result of structural or aerodynamic nonlinearity. In this paper, a flexible half-Delta wing is tested in a low speed wind tunnel in order to investigate its dynamic response. Specifically, an investigation to determine the effects of a steady angle of attack on nonlinear Limit Cycle Oscillations (LCO) of a delta wing-plate model in low subsonic flow has been undertaken. It was found that, at several combinations of airspeed and angle of attack, the wing undergoes limit cycle oscillations. Two types of such oscillations are observed. One of them is low amplitude, low complexity limit cycle oscillations that occur at lower airspeeds; the other is high amplitude, high complexity limit cycle oscillations that occur a higher airspeeds and can appear abruptly. Some of the LCOs are the result of a subcritical Hopf bifurcation occurring at low steady angles of attack. At higher angles, a nontypical bifurcation was observed, whereby LCOs appear, grow with airspeed but then diminish and finally disappear as the airspeed is increased further. [less ▲]

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See detailPoor management in small firms : three typical failure patterns
Crutzen, Nathalie ULg

Conference (2010, September 22)

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See detailImplants dans le secteur esthétique: choix du timing et de la technique chirurgicale.
LAMBERT, France ULg

Conference (2010, September 22)

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See detailHydrologic modelling and dendrochronology as tool of site-species adequation assessment in a changing climate context
Sohier, Catherine ULg; Debruxelles, Jérôme ULg; Brusten, Thomas ULg et al

Poster (2010, September 21)

A hydrologic model is related to dendrochronological measurements performed in a 52 years old Spruce stand. The site is situated on a hillside with shallow and acid brown soil in the ecoregion of Ardenne ... [more ▼]

A hydrologic model is related to dendrochronological measurements performed in a 52 years old Spruce stand. The site is situated on a hillside with shallow and acid brown soil in the ecoregion of Ardenne (Wallonia, Southern Belgium). Hydrologic modelling The hydrologic simulation runs from 1971 to 2005 at daily time step. The model is based on an EPIC code, adapted to the site concerning soil reservoirs depth, characteristic water contents, root profile and water uptake. Weather data come from the Royal Meteorological Institute. Outputs from the model are real evapotranspiration, surface runoff; interflows, deep percolation and soil moisture at daily time step. Dendrochronological study Tree ring thickness is measured on 24 core samples extracted from 12 dominant trees of the stand. Annual increments are standardised by the ARIMA function in order to produce the annual deviation of ring thickness. Means of annual deviation for the 12 trees are then related to annual soil drought intensities. Results Years 1976 and 1996 are emphasised by both the modelling outputs and the dendrochronological measurements as very dry. Model shows a severe drought and tree ring shows a very low growth. Years like 1990, 1992, 1994 and 2004 shows a less severe drought event but a drought that occurs in June-July, which seems to penalize spruce’s growth. On the other hand, years 1981 and 1998 show an important growth and a high value of mean soil moisture during June and July. The poster will show how the time evolution of the ARIMA index is related to some meaningful hydrologic indexes. These considerations will allow us to progress towards forecasting forest trees reaction to climate events and change. With this in mind, we will use a climate scenario build up in the frame of the AMICE interreg project. [less ▲]

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See detailPretreatment And Enzymatic Hydrolysis Of Miscanthus x giganteus: Influence Of Process Parameters
Vanderghem, Caroline ULg; Brostaux, Yves ULg; Jacquet, Nicolas ULg et al

Poster (2010, September 21)

Miscanthus x giganteus is a perennial grass which grows rapidly and gives high yields of biomass per hectare. It can be grown in poor quality soil and is non invasive. Due to its high cellulose and ... [more ▼]

Miscanthus x giganteus is a perennial grass which grows rapidly and gives high yields of biomass per hectare. It can be grown in poor quality soil and is non invasive. Due to its high cellulose and hemicellulose content, it has attracted considerable attention as a possible energy crop to produce bioethanol. Pretreatment of lignocellulosic biomass is a key step to unlocking the protective structures so that the enzymatic hydrolysis of the carbohydrate fraction to monosugars can be achieved more easily and with greater yield. In this study, Miscanthus x giganteus was delignified by a chemical pre-treatment process using a mixture of formic acid/acetic acid (1). The treated material was then hydrolyzed. By means of Box-Behnken experimental design and response surface methodology we investigated the effect of cooking time (60, 120 and 180 min), formic acid/acetic acid/water concentration (20/60/20, 30/50/20 and 40/40/20) and temperature (80, 90 and 107°C) on the residual Klason lignin content and the % of digestibility. The optimal pretreatment process parameters were identified. [less ▲]

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See detailProjet thérapeutique n°99 "Personnes âgées"
Squelard, Gilles ULg; Vilain, Anne; Jacob, Bernard

Poster (2010, September 21)

Introduction Dès avril 2011, la fonction de concertation fera l’objet d’un financement structurel pour les soins en santé mentale en Belgique. Cette fonction va se construire en partie sur base de ... [more ▼]

Introduction Dès avril 2011, la fonction de concertation fera l’objet d’un financement structurel pour les soins en santé mentale en Belgique. Cette fonction va se construire en partie sur base de l’expérience des projets thérapeutiques « réseaux et circuits de soins ». Ces recherches actions se concrétisent par l’organisation de réunions de concertation pluridisciplinaires autour de situations chroniques et complexes. Plus spécifiquement, le projet thérapeutique n°99 « personnes âgées » a pour objectifs de favoriser le maintien à domicile de personnes âgées, de garantir la continuité des soins et du projet de vie, d’améliorer la qualité de la réintégration au domicile, d’éviter les réhospitalisations, de mieux cerner les conditions d’une réhospitalisation, et d’aborder les problématiques d’isolement, de solitude, voire de maltraitance. Objectif Proposition d’un modèle organisationnel de travail en réseau sur base de l’expérience du projet thérapeutique n°99 « Personnes âgées » en Province de Liège. Méthodologie Le projet thérapeutique n°99 vise les personnes âgées de 65 ans et plus, habitant en Province de Liège et présentant une pathologie psychiatrique spécifique : démence, abus d’alcool, abus d’opiacés, abus d’hypnotiques, anxiolytiques ou sédatifs, schizophrénie, ou trouble schizo-affectif. Le projet repose sur une démarche empirique. Il consiste en l’organisation de réunions de concertation pluridisciplinaires autour de patients et de leur famille dont la finalité est la mise en place d’un suivi individualisé. Nous nous appuyons sur ces situations cliniques pour mettre en place des procédures de travail en réseau. Résultats L’âge moyen de la population suivie est de 79,21 ± 6.71. Elle se constitue majoritairement d’hommes (51%). Les diagnostiques les plus fréquents à l’inclusion sont la démence (Alzheimer, vasculaire,..) et l’abus d’alcool. La mise en place et la pérennisation de la fonction de concertation a nécessité et nécessite encore une sensibilisation des professionnels (équipes et pouvoir organisateur), quant à l’intérêt de la concertation et à ses modalités organisationnelles. Avec les partenaires du projet, nous avons développé des procédures de travail en réseau destinées à faciliter et à structurer les échanges. Pour chaque situation, autour de l’usager, nous identifions un agent de suivi (référent du patient) qui assure des fonctions de liaison, d’évaluation et de bienveillance. Nous nous appuyons sur un outil « le plan de soins individualisé - PSI » qui motive la définition d’objectifs clairs, identifie le rôle de chaque partenaire, et l’échéance à respecter pour la prise en charge. Conclusion L’expérience du projet thérapeutique n°99 s’est avérée extrêmement fructueuse, par l’atteinte des objectifs centrés sur l’usager et leur famille, mais également à travers les nombreux échanges interprofessionnels. La concertation pluridisciplinaire constitue un excellent moyen de connaissance des partenaires, amenant une représentation plus concrète de leur mode de fonctionnement et de leur offre de soins. Le développement de la fonction de concertation a suscité un remaniement organisationnel important chez les professionnels, souvent peu familiarisés à la collaboration « extérieure ». Sa mise en place dans le champs de la santé mentale requiert le développement de procédures de travail en réseau ainsi qu’un accompagnement des professionnels tant au niveau institutionnel qu’autour de l’usager et de leur famille. Une responsabilisation des partenaires devra appuyer cette démarche pour garantir leur investissement dans un processus de travail en réseau. L’efficacité de celui-ci repose sur l’implication de l’ensemble des partenaires disponibles sur une zone géographique donnée. [less ▲]

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See detailWALPHY : un projet pilote de réhabilitation de cours d’eau
Verniers, Gisèle; Peeters, Alexandre ULg; Hallot, Eric ULg et al

Conference (2010, September 20)

Grâce au co-financement de l’Union européenne dans le cadre de la ligne budgétaire LIFE Environnement, un projet pilote sur la restauration physique des cours d’eau a démarré en janvier 2009 pour une ... [more ▼]

Grâce au co-financement de l’Union européenne dans le cadre de la ligne budgétaire LIFE Environnement, un projet pilote sur la restauration physique des cours d’eau a démarré en janvier 2009 pour une durée de 5 ans. Son nom : WALPHY pour « Wallonie – physique ». Le projet est coordonné par la Direction des Cours d’Eau Non Navigables DCENN (Service Public de Wallonie SPW - Belgique) dont le district de Namur assure la réalisation des travaux de restauration. Deux partenaires scientifiques assument l’évaluation et le suivi de ces travaux : le Laboratoire d’Hydrographie et de Géomorphologie Fluviatile de l’Université de Liège et l’Unité de Recherche en Biologie des Organismes des Facultés Universitaires de Namur. [less ▲]

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See detailDamping identification in a non-linear aeroelastic structure
Vio, Gareth A.; Prandina, Marco; Dimitriadis, Grigorios ULg

in Proceedings of ISMA2010 (2010, September 20)

An energy-based method is proposed to identify damping parameters from time histories of responses to sets of single-frequency harmonic excitation. The method is intended to be practically applicable to ... [more ▼]

An energy-based method is proposed to identify damping parameters from time histories of responses to sets of single-frequency harmonic excitation. The method is intended to be practically applicable to real structures and is able to identify the value of viscous damping, Coulomb friction and eventually other forms of non-linear damping models in aeroelastic systems. The inputs required are simply the accelerometer signals and the forces applied. It will be shown that if the system is undergoing Limit Cycle Oscillations, no external force is required for the identification process. [less ▲]

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See detailParticle packing of concrete containing blended cement
He, Huan ULg; Courard, Luc ULg; Pirard, Eric ULg

Conference (2010, September 20)

Physical particle packing is becoming a hot topic in concrete technology as more and more types of granular materials are used in concrete either for ecological or for engineering purposes. Aggregate is ... [more ▼]

Physical particle packing is becoming a hot topic in concrete technology as more and more types of granular materials are used in concrete either for ecological or for engineering purposes. Aggregate is used as concrete’s skeleton, whereby the particles are stabilized by the cementitious matrix. Packing efficiency governs the spatial characteristics of this structure and thereby influences concrete’s properties. Fine-grained sand can be used to further improve density of the aggregate structure. The particulate cement is also frequently blended by fine mineral admixtures to influence performance of the paste and the properties of the matured concrete. The so-called filler effects increase packing density of the blended cement and possibly reduce water demand. High performance characteristics require suitable blending materials of proper properties (fineness, shape, chemical components, etc.). A number of theoretical packing models have been proposed for prediction of packing characteristics and the resulting concrete properties. A minimum voids ratio has been mathematically derived for certain particle size distributions. This allowed establishment of some optimum graded mixtures for concrete production. On the other hand, the computer simulation approach provides a powerful tool for simulating particle packing. Computational concrete (compucrete) has been developed for a wide range of research purposes. Application of computer simulation to particle packing offers a promising perspective in concrete technology; it provides a proper representation of the heterogeneous concrete material, and renders the possibility of studying the effects of a wide range of technological parameters. In this study, an advanced DEM will be utilized for investigate the packing properties of admixtures blended cement. This new-developed system is capable of packing simulations of arbitrary-shaped particles. Experimental shape analysis of each identical group of particles provides fundamental references of shape simulation strategy. Finally, computer simulation structures of blended cement paste both in fresh and hardened states will be compared with the experimental approach. Correlation of particle packing characteristics and properties of blended cement paste will be analyzed and discussed. Optimization of blending efficiency and improvement of concrete properties are pursued using packing modeling. [less ▲]

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See detailBifurcation analysis of a wing undergoing stall flutter oscillations in a wind tunnel
Norizham, Abdul Razak ULg; Andrianne, Thomas ULg; Dimitriadis, Grigorios ULg

in Proceedings of ISMA2010 (2010, September 20)

Stall flutter is a Limit Cycle Oscillation (LCO) caused by the periodic separation of the flow around a wing immersed in a uniform fluid flow. The separation could be either partial or complete [1]. The ... [more ▼]

Stall flutter is a Limit Cycle Oscillation (LCO) caused by the periodic separation of the flow around a wing immersed in a uniform fluid flow. The separation could be either partial or complete [1]. The work presented focuses on a wing undergoing stall flutter in the pitch degree of freedom. The phenomenon is analyzed from the structural and aerodynamic response perspectives. The objective of this study is to promote the understanding of stall flutter by characterizing the complete bifurcation behavior of the selected system. The wing section chosen for this study is NACA 0018 profile applied to a rectangular wing. The tests are carried out at different airspeeds and angles of attack. The measured aeroelastic responses are analyzed and the behavior of the dynamic system is characterized by fully describing its bifurcation. Structural accelerations as well as unsteady pressures around the mid-span point of the wing are measured and examined. Furthermore, flow field visualization by means of the Particle Image Velocimetry technique is used to demonstrate aspects of the unsteady flow field, such as the manifestation of separation and vortices. [less ▲]

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See detailOrdre social et désordres psychiques : Le regard de Zola sur le Second Empire
Ledent, David ULg

Conference (2010, September 18)

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See detailComparaison de deux modes de préparation des médicaments dans une MRS en Communauté germanophone : impact quantitatif et qualitatif sur la pharmacothérapie
Van Hees, Thierry ULg; Schroeder, Béatrice ULg

Conference (2010, September 18)

1) Introduction La préparation de semainiers pour les patients des maisons de repos et de soins (MRS) par le pharmacien d’officine permet de diminuer les erreurs liées à l’administration des médicaments ... [more ▼]

1) Introduction La préparation de semainiers pour les patients des maisons de repos et de soins (MRS) par le pharmacien d’officine permet de diminuer les erreurs liées à l’administration des médicaments. Outre ce bénéfice, l’accès pour le pharmacien à l’ensemble du traitement devrait faciliter la validation pharmaceutique des prescriptions et le développement de soins pharmaceutiques de qualité pour les patients résidant en communauté. 2) Contexte de l’étude La MRS étudiée est une institution publique de la Communauté Germanophone où résident 143 patients répartis dans 6 services différents. Le système de gestion des médicaments est en phase de transition. Pour 3 salles, la préparation et la distribution des médicaments sont assurées par les infirmières de salle (=groupe contrôle). Pour les 3 autres salles, le pharmacien d’officine prépare des semainiers pour les formes orales solides, la préparation des autres formes pharmaceutiques et la distribution des médicaments étant assurées par les infirmières (=groupe intervention). 3) Objectifs Le but de l’étude est de comparer ces deux modes de préparation des médicaments en termes quantitatifs (nombre de médicaments et nombre de prises) et qualitatifs (médicaments inappropriés et interactions). 4) Méthode En octobre 2009, les traitements de tous les patients de l’institution ont été enregistrés sur base des plans d’administration de la MRS. Les médicaments inappropriés ont été évalués sur base d’une adaptation française de la liste de Beers. Les interactions médicamenteuses a été analysées à l’aide du logiciel Micromedex® sur un échantillon de 20 patients par groupe, stratifié selon le nombre de médicaments. 5) Résultats 143 patients ont été enrôlés dans l’étude (67 pour le groupe contrôle et 76 pour le groupe intervention). L’âge moyen (82,4±8,3) est semblable entre les groupes, contrairement à la répartition homme/femme, la durée de séjour et le score de Katz. Le nombre de médicaments/patient (7,9±4,4 vs 8,7±3,7 ; p=0,23), le nombre de prises/patient (10,8±6,9 vs 11,8±5,5 ; p=0,36) et le nombre de médicaments inappropriés/patient (1,0±0,9 vs 1,0±0,9 ; p=0,73) ne sont pas différents entre les deux groupes, même après ajustement pour le sexe, la durée de séjour et le score de Katz. Le nombre d’interactions majeures/patient (0,8±1,3 vs 0,9±1,5 ; p=0,73) est similaire dans les deux groupes. 6) Conclusion En résumé, la préparation de semainiers par le pharmacien d’officine n’entraine pas de différence statistiquement significative du point de vue quantitatif et qualitatif sur la pharmacothérapie des patients en MRS. [less ▲]

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See detailInfluence d'un avis pharmaceutique à l'admission sur les prescriptions potentiellement inappropriées chez des patietns hospitalisés en gériatrie
Samalea Suarez, Audrey ULg; Petermans, Jean ULg; Van Hees, Thierry ULg

Poster (2010, September 18)

1) Introduction L’iatrogénie médicamenteuse, très courante chez la personne âgée, est un problème de santé publique. Cependant, il est possible d’en limiter les effets par une prescription adéquate ... [more ▼]

1) Introduction L’iatrogénie médicamenteuse, très courante chez la personne âgée, est un problème de santé publique. Cependant, il est possible d’en limiter les effets par une prescription adéquate. Divers outils spécifiques, tels que les listes de Beers (1) ou de Laroche (2) permettent d’évaluer le caractère inapproprié des médications. 2) Objectifs Evaluer l’influence d’un avis pharmaceutique, rédigé conjointement à une anamnèse médicamenteuse, sur les prescriptions potentiellement inappropriées chez les patients hospitalisés en gériatrie au CHU de Liège. 3) Méthodologie Etude prospective avec contrôle historique. Analyse des médicaments potentiellement inappropriés à l’admission et à la sortie pour les patients hospitalisés entre octobre et décembre (2008 = contrôle historique ; 2009 = intervention) dans le service de gériatrie du CHU de Liège, provenant du domicile et consommant minimum 3 médicaments à l’arrivée à l’hôpital. L’intervention consistait à réaliser une anamnèse médicamenteuse assortie d’un avis pharmaceutique relevant les prescriptions potentiellement inappropriées. Les prescriptions étaient considérées comme inappropriées si elles étaient reprises sur une liste préalablement établie, basée sur les critères de Beers et de Laroche. Les données concernant les traitements à l’admission proviennent du dossier médical informatisé pour le groupe historique et de l’anamnèse réalisée par le pharmacien pour le groupe intervention. Les médications de sortie, pour les 2 groupes, sont issues du dossier médical informatisé. 4) Résultats 50 patients ont été recrutés dans chaque groupe. L’âge moyen (82,9±6,0) et la répartition homme/femmes (34/66) sont semblables. Le nombre moyen de médicaments à l’admission et à la sortie ne diffère pas entre les deux groupes (A : 7,7±2.9 vs 8,4±3.2, p=0,26 ; S : 8,2±3,0 vs 7,7±2,5, p=0,33). On observe cependant une réduction du nombre de médicaments entre l’admission et la sortie dans le groupe intervention (0,52±2.6 vs -0,72±2,9, p=0,028). Le nombre moyen de médicaments potentiellement inappropriés à l’admission est semblable entre les deux groupes mais diminue significativement à la sortie dans le groupe intervention (A : 1,2±1,02 vs 1,1±1,02, p=0,78 ; S : 0,94±0,82 vs 0,56±0,54, p=0,019). Au sein de chaque groupe, le nombre de médicaments inadaptés diminue entre l’admission et la sortie mais la différence est plus marquée pour le groupe intervention (2008 : p=0,044 ; 2009 : p<0,0001). On observe également une diminution de la durée d’hospitalisation entre 2008 et 2009 (médiane 17,5 vs 13 jours p=0,008). 5) Conclusion Malgré un échantillon limité de patients et le caractère rétrospectif de certaines données, ces résultats démontrent la valeur ajoutée du pharmacien clinicien et d’un avis pharmaceutique à l’admission sur la qualité de la prescription médicamenteuse à la sortie d’une hospitalisation gériatrique. Cette expertise importante contribue à la prise en charge pluri-disciplinaire du patient âgé fragilisé. [less ▲]

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See detailL'intercommunale, entité hybride aux frontières du droit public et du droit privé
Durviaux, Ann-Lawrence ULg

Conference (2010, September 17)

Exposé du régime juridique des intercommunales en Région wallonne

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See detailLa vitamine D: le point en 2010.
Cavalier, Etienne ULg

Conference (2010, September 17)

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See detailImpact of grazing by amphipods on the dynamics of the epiphytic cover of the Posidonia oceanica leaves : an in vitro experiment.
Michel, Loïc ULg; Gobert, Sylvie ULg; Dauby, Patrick ULg et al

Conference (2010, September 17)

It is now established that several species of amphipods associated to Mediterranean Posidonia oceanica meadows consume the epiphytes present on the leaves of the seagrass. However, little or no work has ... [more ▼]

It is now established that several species of amphipods associated to Mediterranean Posidonia oceanica meadows consume the epiphytes present on the leaves of the seagrass. However, little or no work has been undertaken to quantify this interaction. Here, we present the results of an in vitro experiment that used seagrass mimics to estimate the impact of grazing by the amphipods Apherusa chiereghinii, Dexamine spiniventris and Gammarus spp on the dynamics of the epiphytic cover. All species reduced epiphyte biomass in a significant way, and grazers preferentially fed on erected algae. Assimilation of epiphyte-derived carbon and nitrogen was monitored using stable isotopes (13C and 15N) labelling, and was obvious in the three taxa. Moreover, grazing activity of amphipods seemed to influence epiphyte physiology, notably by increasing nitrogen uptake by the erected algae. These results shed light on trophic interactions between the amphipods from Posidonia oceanica meadows and the seagrass epiphytic cover, and thus enhance our understanding of the role of these grazers in the functioning of the meadow as an ecosystem. [less ▲]

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See detailMacromolecular engineering to the service of advanced drug delivery systems
Jérôme, Christine ULg

Conference (2010, September 16)

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See detailEmergence of coagulase negative staphylococci in Southern Belgium - Facts and Figures
Theron, Léonard ULg; Bughin, Jean; Detilleux, Johann ULg et al

Conference (2010, September 16)

Since the early 1990s in Wallonia, coagulase negative staphylococci (CNS) have been identified as mastitis agent, both clinical and subclinical. As there epidemiological cluster has not yet been clearly ... [more ▼]

Since the early 1990s in Wallonia, coagulase negative staphylococci (CNS) have been identified as mastitis agent, both clinical and subclinical. As there epidemiological cluster has not yet been clearly classified between environmental and contagious pathogen, several questions subsists toward this class of mastitis etiological agents. From the late 1990s were the CNS represented 12% of infected quarters to 23% of all positive identifications in 2008, the CNS have taken a large part of the clinical cases of mastitis. Comparatively, CNS in Flanders represents only 7% of clinical cases identifications and 24% of subclinical cases. They still represent low inflammation pathogens, as for the average somatic cell count (SCC) of a CNS infection is 450.000 cells/ml (DETILLEUX, J. 1999. Preventive Veterinary Medicine, 41, 75-88.) but they represent for sure a source of treatment events in farm as for they provoke clinical mastitis. So, however they are seen as minor pathogens of a lesser matter regarding milk production drop, they still can imply a treatment a loss of discarded milk. Whether or not they should be treated could be approached through the Mammipack® project results. 124 common clinical mastitis events where sampled for bacteriology at day 0 and day 21 (Fig. 1). Farmer were asked to qualify the severity of the mastitis whether it had abnormal milk (score 1); abnormal quarter (score 2) or hyperthermia/anorexia (score 3). Also, they recorded the treatment used and we collected the SCC of each cow recorded, 2 months before the clinical signs until 3 months after. We decided to define as “chronic cases” cows showing SCC > 250.000 cells/ml the month before the clinical event and as “cured” cows showing SCC < 250.000 cells/ml the month after the event or the next one if the mastitis took place less than 15 days before test day. We could show that CNS infections still account for the least severe cases (Fig. 2), except for S. simulans, S. saprophyticus and S. hominis that shown some quarter indurations. While only 10% of clinical infection does remain clinically uncured to the farmer, figure 3 explains how 50% of CNS infections in our essay remained globally cured (Bacteriological and tissular), even if 40% of their treatments shown to be inadequate. Also, only one infection could be referred as a chronic case, all the others were acute cases. Though this study recorded a small amount of cases, yet we did not find any results differing from known characteristics of CNS infections. One interesting facts is the quite easy cure of the infected quarters given the poor quality of treatment. [less ▲]

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See detailGrowth monitoring of Listeria monocytogenes and Salmonella spp. according to the packaging technique in pork minced meat
Adolphe, Ysabelle; Delhalle, Laurent; Jasick, A. et al

Poster (2010, September 16)

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See detailMicrobiological Analyses of Raw Milk Cheeses from Walloon Farms
Sanchez-Alcaraz, Maria-Thérésa ULg; Godrie, Thérèse ULg; Helleputte, Murielle ULg et al

Poster (2010, September 16)

For several years now, the Walloon Region has been supporting a project to help and follow farmers through their diversification activities: la Cellule Qualité Produits Fermiers (CQPF). Among their ... [more ▼]

For several years now, the Walloon Region has been supporting a project to help and follow farmers through their diversification activities: la Cellule Qualité Produits Fermiers (CQPF). Among their partners, the Process and Quality Engineering Laboratory in the Department of Food Technology of the Agricultural University of Gembloux is in charge of the hygienic supervision, ensuring the implementation of self-evaluation systems based on the HACCP principles and good hygiene practice guidelines. For four years, the CQPF has been following almost a hundred Walloon cheesemaking artisans using raw milk from cow, goat and ewe. According to the Commission Regulation (EC) No 2073/2005 on microbiological criteria for foodstuffs, analyses of microbiological pathogens have to be performed regularly to guarantee healthy and hazard free raw milk products. The results of microbiological analyses from raw milk cheeses of our artisans between January 2007 and June 2010 are presented below. We were interested on showing firstly, if the quality of the Walloon cheeses follow the standards of food safety criteria established by the European regulation, and secondly, if there is a trend for pathogen contamination throughout the year. [less ▲]

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See detailValidation by a ring trial of an isolation method for VTEC O26, O103, O111, and O145 in minced beef
Verstraeten, K.; De Zutter, L.; Robyn, J. et al

Poster (2010, September 16)

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See detailBEHAVIOURAL ECOLOGY OF LONG-TAILED MACAQUES IN THE CONTEXT OF URBAN COMMENSALISM: A COMPARISON STUDY BETWEEN BANGKOK (THAILAND) AND BALI (INDONESIA)
Brotcorne, Fany ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline et al

Poster (2010, September 16)

The quest for coexistence with non-human primates requires an extensive analysis of the growing commen-salism phenomenon. The long-tailed macaque (Macaca fascicularis), a very successful commensal species ... [more ▼]

The quest for coexistence with non-human primates requires an extensive analysis of the growing commen-salism phenomenon. The long-tailed macaque (Macaca fascicularis), a very successful commensal species, adapts remarkably to anthropogenic habitats. Studies in several Asian locations raised the issue of hu-man-macaque conflict related to human health and safety as well as to conservation threats on macaques. Here, we aimed at assessing the anthropogenic impact (human presence and provisioning frequency) on the eco-behavioural profile of two populations living commensally with humans in Bangkok (Thailand) and Ubud (Padangtegal, Bali). We used an identical focal and scan sampling methodology during two three-month study periods in 2007 (Bangkok) and 2009 (Bali). Despite different ecological conditions, the two populations showed a strongly similar activity budget. Resting was the most common activity (40% vs. 35%), followed by feeding (28% vs. 24%), moving (15% vs. 14%) and affiliations (14% vs. 19%). Agonistic behaviours were slightly more frequent in Bali (0.6% vs. 3.0%), maybe due to higher population density (8.5/ha vs. 14.2/ha). Contrary to previous studies, we did not find any impact of provisioning on agonistic interactions. Concerning diet composition, proportions of natural vs. provisioned food and proportions of various food categories were consistent between the two sites. Since the ecological conditions were different, the anthropogenic factors are likely to explain the strong consistency in eco-behavioural profile of the two populations. Further studies are planned on three other populations to assess the specific impact of commensalism on behavioural ecology and derive the implications for long term population trends. [less ▲]

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See detailChilling of carcasses from double muscled cattle: time-temperature evolution and predictive modelling of growth of Listeria monocytogenes and Clostridium perfringens
Delhalle, Laurent; Collignon, B.; Dehard, S. et al

Poster (2010, September 16)

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See detailCould Western blot analysis be an alternative to radio-immunoassay for sheep pregnancy associated glycoproteins measurements ?
El Amiri, B.; El Abbadi, N.; Benjelloun, B. et al

in Reproduction in Domestic Animals (2010, September 15), 45(Suppl 3), 65

This study prospected whether Western blot analysis could be an alternative to radio-immunoassay (RIA) for sheep pregnancy diagnosis. Blood samples were taken from Boujaâd ewes (n= 9) and Boujaâd x D’man ... [more ▼]

This study prospected whether Western blot analysis could be an alternative to radio-immunoassay (RIA) for sheep pregnancy diagnosis. Blood samples were taken from Boujaâd ewes (n= 9) and Boujaâd x D’man (BD) cross breed (n= 12). The pregnancy associated glycoproeins (PAGs) were weekly monitored in plasma during the whole gestation and the first month postpartum by two RIA systems (El Amiri et al., 2007, Reprod Domest Anim 42:257-62). The highly immunoreactive samples derived from PAG profiles were tested using Western blot based on the same antiserum used in RIA. Each week (from the 13th to the 19th week), two pools of plasma samples (4 ml each) were taken from single and multiple lambing ewes respectively. Samples were submitted to a protein extraction at neutral pH, followed by ammonium sulfate (A.S.) precipitation, dialysis, and lyophilization. The placental extract was used as a check. Results revealed that ewes with multiple lambs presented numerically higher PAG concentrations. In both RIA systems, the high concentrations were recoded around the 19th week of gestation and the maximal concentrations varied from 120 to 700 ng/ml. In Western blot, the placental extracts reacted positively while the plasma samples did not give any positive reaction. In conclusion, the RIA remains the only sensitive method to measure PAGs in plasma. The present study strengthens the need to develop an ELISA kit as an alternative to RIA systems. [less ▲]

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See detailInfluence of Brain-Derived Neurotrophic Factor val66met human polymorphism on declarative memory consolidation during sleep
Mascetti, Laura ULg; Foret, Ariane ULg; Matarazzo, Luca et al

in Journal of Sleep Research (2010, September 15), 19(s2),

The Brain-Derived Neurotrophic Factor (BDNF) is a neurotrophin which in the adult brain, regulates long-term potentiation and has been involved in the build up of the homeostatic sleep pressure in rodents ... [more ▼]

The Brain-Derived Neurotrophic Factor (BDNF) is a neurotrophin which in the adult brain, regulates long-term potentiation and has been involved in the build up of the homeostatic sleep pressure in rodents. In humans, valine (val) to methionine (met) substitution in the 5’ pro-region of the BDNF protein is associated with poorer episodic memory. Neurons transfected with met-BDNF-Green Fluorescence Protein showed lower depolarization-induced secretion, while constitutive secretion is unchanged. Here, we hypothesized that the differences in BDNF release determined by this polymorphism would influence sleep-dependent memory consolidation and that in comparison with the met-carriers (val/met or met/met), val/val individuals would show higher memory performance after one night of sleep rather than an immediate retrieval session. This study was supported by FNRS-FRIA, the University of Liège, and the QEMF. [less ▲]

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See detailBMP signalling in growth plate chondrocytes: a Boolean modelling approach
Kerkhofs, Johan ULg; Roberts, Scott J; Van Oosterwyck, Hans et al

Poster (2010, September 15)

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See detailTailor-made copolymers for responsive drug delivery nanosystems
Cajot, Sébastien ULg; Jérôme, Christine ULg

Poster (2010, September 15)

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See detailTransnational Relations and Family Transformations. Congo-Kinshasa--Liège/Bruxelles--Kinshasa
Meiers, Bénédicte ULg

Conference (2010, September 14)

premier état des lieux des formes sociales que prennent les liens entre les migrants rencontrés à Liège et leurs familles à Kinshasa. Indépendamment des familles transnationalisées dont les configurations ... [more ▼]

premier état des lieux des formes sociales que prennent les liens entre les migrants rencontrés à Liège et leurs familles à Kinshasa. Indépendamment des familles transnationalisées dont les configurations varient d’un individu à l’autre, deux grandes formes de « néo-parenté » (parentalisation primant parfois sur la parenté généalogique) semblent se dégager : le quartier-famille (bana quartier) et la famille spirituelle (mouvement religieux). [less ▲]

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See detailAffine bundles are affine spaces
Leuther, Thomas ULg

Poster (2010, September 13)

We show that the category of affine bundles over a smooth manifold M is equivalent to that of affine spaces modeled on locally free modules over the algebra of smooth functions on M.

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See detailRecognisable languages over an algebra
Cavus, Rukiye ULg

Poster (2010, September 13)

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See detailSome results about prevalence and strongly monoHölder functions
Kreit, Damien ULg

Poster (2010, September 13)

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See detailNon Stationary Multiresolution Analysis
Simons, Laurent ULg

Poster (2010, September 13)

An orthonormal basis of wavelets of $L^2(\R)$ is an orthonormal basis of $L^2(\R)$ of type \[ \psi_{j,k}=2^{j/2}\psi(2^j\cdot-k),\quad j,k\in\Z. \] A classical method to obtain such bases consists in ... [more ▼]

An orthonormal basis of wavelets of $L^2(\R)$ is an orthonormal basis of $L^2(\R)$ of type \[ \psi_{j,k}=2^{j/2}\psi(2^j\cdot-k),\quad j,k\in\Z. \] A classical method to obtain such bases consists in constructing a multiresolution analysis. When the mother wavelet $\psi$ depends on the scale (i.e. the index $j$), a non stationary version of multiresolution analysis is then used. It is for example the case in the general context of Sobolev spaces. We generalize different characterizations in the standard theory of wavelets to the case of multi-scales wavelets and non stationary multiresolution analyses. [less ▲]

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See detailApplication of shearography to crack detection in concrete structures subjected to traffic loading
Muzet, Valérie; Blain, Pascal ULg; Przybyla, David

in Armando Albertazzi, Armando Jr.; Kaufmann, Guillermo H. (Eds.) Speckle 2010: Optical Metrology (2010, September 13)

Early detection of defects in concrete structures, such as bridges or dams, is essential to optimize the maintenance of civil engineering facilities. Optical methods constitute non-destructive means of ... [more ▼]

Early detection of defects in concrete structures, such as bridges or dams, is essential to optimize the maintenance of civil engineering facilities. Optical methods constitute non-destructive means of control and measurement but they are generally confined in laboratories where both the setup and environnement are controlled. The method of shearography is especially well adapted to detect damages due to both its capacity to distinctly visualize strain concentration zones and its robustness. The experimental set-up is relatively compact, which enables to examine an extensive surface area by simply moving the shearographic head. In this paper, the application of this methodology for the detection of cracks is presented on concrete samples and circulated outside concrete structures. Due to its sensitivity to strain concentration, shearography is able to detect structural cracks, even when they were not through-cracks. Operational implementation is made on two circulated structures with experts in manual cracks detection. No stimulation device is used. In the first structure, cracks are detected on the bridge deck and on the bridge abutment. In the second structure, cracks on the intrados of the bridge deck are detected and also beginning of cracks which have not been detected by the visual inspection. Different areas are scanned and the results are in agreement with the visual inspection. This technique enables detecting cracks on structures subjected to traffic load. The natural loading of an engineering structure, i.e. the rolling traffic it bears, proves well suited for cracks detection by means of shearography, provided traffic patterns are regular enough. [less ▲]

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See detailCaught on the Boundary: The Micro-Processes of Social Movement-Corporate Relationships
Huybrechts, Benjamin ULg; Nicholls, Alex

Conference (2010, September 13)

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See detailPredicting Attitudes Towards Disorders of Consciousness: a European Survey
Demertzi, Athina ULg; Bruno, Marie-Aurelie; LEDOUX, Didier ULg et al

Conference (2010, September 11)

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See detailSocietal vulnerability and adolescent offending. Exploring the role of violent values, low self-control and troublesome youth group involvement
Vettenburg, Nicole; Pauwels, lieven; Brondeel, Ruben et al

Conference (2010, September 11)

the direct/indirect explanation power of societal vulnerability > juvenile delinquency is discussed

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See detailProspective study of hemodynamic disorders mesured by echocardiography and associated with endotoxemia in horses
Borde, Laura ULg; Amory, Hélène ULg; Leroux, Aurélia ULg et al

Conference (2010, September 11)

Endotoxemia is the first mortality cause in intensive care horses. In human, hemodynamic disturbances have been showed to be associated with septic shock whereas in horses, this facet of endotoxemia has ... [more ▼]

Endotoxemia is the first mortality cause in intensive care horses. In human, hemodynamic disturbances have been showed to be associated with septic shock whereas in horses, this facet of endotoxemia has not yet been studied. The aim of the study was to assess the impact of endotoxin shock on equine cardiac function. Fifty horses admitted in clinic with signs of endotoxic shock and 17 healthy control horses were submitted to a doppler echocardiographic exam. The endotoxemic horses were classified in 4 groups according to their shock score based on clinical evaluation (heart rate (HR) and respiratory rate), non invasive systolic blood pressure, and blood tests (Packed cell volume and lactates). Score 1, 2, 3 and 4 groups included 11, 17, 12 and 10 horses, respectively. Left ventricular (LV) echocardiographic and Doppler parameters were compared between the 5 groups using a multivariable ANOVA analysis. The LV internal diameter, ejection time, ejection time corrected for HR and mean velocity of circumferential fiber shortening corrected for HR, the aortic velocity time integral and deceleration time, and the stroke volume were significantly lower, whereas the HR and the peak velocity of the late diastolic filling of the mitral Doppler flow and its velocity time integral were significantly higher in grade 2 to 4 endotoxemic horses than in control horses. Because of the tachycardia compensating the lower stroke volume in endotoxemic horses, the cardiac output was not significantly different between groups. Despite the fact that the increase in HR, the fall in preload and a probable decrease in afterload doubtless played a role in the observed changes, the results of this study suggest an impaired systolic and diastolic LV function in horses with moderate to severe endotoxemia. Doppler echocardiographic monitoring of the cardiovascular function could thus be of interest in equine intensive care. [less ▲]

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See detailCategorization and abstraction of construction schemas in children with specific language impairment
Leroy, Sandrine ULg; Duquet, Adèle ULg; Parisse, Christophe et al

Poster (2010, September 10)

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See detailPersonalised learning: a familiar concept to secondary teachers? And which teachers?
Verpoorten, Dominique ULg; Renson, Jean-Marie ULg; Westera, W et al

in Walker, S; Ryan, M; Teed, R (Eds.) Proceedings of the e-learning @ Greenwich Conference (Making it personal!) (2010, September 10)

This paper presents the main results of a questionnaire survey that sought to evaluate secondary school teachers’ familiarity with the notion of personalised learning and to relate it to personal ... [more ▼]

This paper presents the main results of a questionnaire survey that sought to evaluate secondary school teachers’ familiarity with the notion of personalised learning and to relate it to personal, sociological and professional characteristics. The outcomes of this work are both an exploratory study aimed at defining more focused questions about the theme of personalisation, and the first tryout of the questionnaire designed to gather data. Although this was thus a preliminary study which did not lay claim to any more general scope, it still enables some hypotheses to be framed and examined in the light of the answers of 43 practitioners. The appendix provides the full questionnaire on personalisation, as distributed to participants. [less ▲]

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See detailVandalism among adolescents - a comparison of european countries
Gavray, Claire ULg; Vettenburg, Nicole

Conference (2010, September 10)

ISRD results show it' s important not to banalize vandalism. They also show that different factors lead girls and boys to adopt this behaviour. It's significantly due to gendered socialization.

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See detailImpaired verbal short-term memory for serial order information in dyslexic adults
Martinez Perez, Trecy ULg; Majerus, Steve ULg; Poncelet, Martine ULg

Poster (2010, September 10)

This study used the distinction of item and order information in verbal short-term memory (STM) to further our understanding of verbal STM impairments in dyslexia. Item STM has been shown to depend on the ... [more ▼]

This study used the distinction of item and order information in verbal short-term memory (STM) to further our understanding of verbal STM impairments in dyslexia. Item STM has been shown to depend on the quality of underlying phonological representations and hence should be impaired in dyslexic participants given their poor phonological processing abilities. On the other hand, order STM represents a specific STM capacity predicting learning capacity for new phonological and orthographic sequences (Majerus et al., 2006; Nithart et al, 2010). If STM impairments contribute to dyslexia, then especially order STM should be impaired, in addition to item STM. [less ▲]

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See detailSerial offenders' spatial behaviour: revisiting the marauder/commuter dichotomy
Trotta, Marie ULg

Conference (2010, September 10)

Geographic profiling is a methodology that uses the location of a series of crimes attributed to the same offender in order to determine the residence of this latter. This recent discipline links the ... [more ▼]

Geographic profiling is a methodology that uses the location of a series of crimes attributed to the same offender in order to determine the residence of this latter. This recent discipline links the theories of environmental criminology, such as the routine activity theory, with the techniques of spatial analysis offered by the Geographic Information Systems such as centrographic statistics and distance decay functions. The literature differentiates two categories of serial offenders according to their mobility: the marauder committing his crimes in the nearby area of his home and the commuter travelling outside his daily activities area. Until now, geographic profiling methodologies have proven to be effective only for the marauder behaviours. Before applying these spatial techniques, it is therefore essential to know what kind of offenders we are facing. However, few studies have tried to determine how these two behaviours could be identified on the basis of crime scene information and suspect’s characteristics. Moreover, spatiotemporal aspects have very often been underexploited. After an introduction to geographic profiling, we present the existing typologies of offender spatial behaviours, among which the commuter/ marauder dichotomy. We set out the crucial information identified in the literature aiming at their differentiation and their implication on the method used to reduce the search area. We draw a conclusion that some spatial inconsistencies persist, requiring to revisit the typologies according to multiple spatiotemporal patterns. Particularly we demonstrate how these typologies can be enhanced by taking into account the relation between the moment of the crime and the location of the crime site. Finally, we show that these new patterns can improve the analysis of commuters thanks to techniques based on spatiotemporal constraints. [less ▲]

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See detailFootball and community problems in Belgium
Fincoeur, Bertrand ULg

Conference (2010, September 10)

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See detailTowards international criminology and victimology
Pierre, Alexia ULg

Conference (2010, September 10)

Classical criminology was mostly developed in the field of local penal law. Thus, protective and repressive measures taking part in these judicial systems are often limited to local aims. In this ... [more ▼]

Classical criminology was mostly developed in the field of local penal law. Thus, protective and repressive measures taking part in these judicial systems are often limited to local aims. In this criminology, the State is protective, the care for victims is institutionalized. Moreover, the relation between criminology and penal qualification of the act against the victim as a crime is essential to access the status of victim. This entails an epistemological presupposition in victimology, science considered as a specialized field of criminology. Indeed, this presupposition makes the victim of serious violations of penal Law the prototype of victims of serious offenses. Furthermore, crime is not only a matter of individuals but also of structural possibilities, as is the case in criminal organizations. In the subject matter of organized criminality, the sides taking in concern in classical criminology are mostly related to economical delinquency. State or governmental army criminality is rarely explored by researchers. Previously, these topics seemed to be unreachable, but the nature of the recent armed conflicts, and the present evolution of International penal Law, entailed to the visibility of massive atrocities during wars. Today, criminology must face new fields of involvement, larger than these investigated in classical criminology. Presently, an international criminology is emerging, which is different and liberated from classical criminology. In this international criminology, a special kind of criminality is studied, due to its massiveness, its extent and is systematic nature. In addition, a strong war victimology is emerging as well, victimology tends thus to be an autonomous discipline. The challenge is now to turn crisis criminology and victimology into a strong scientific discipline. [less ▲]

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See detailInfluence of the contraction mode on the tendon structure - Rat model
Kaux, Jean-François ULg; Drion, Pierre ULg; Besançon, Benoît et al

in 2nd Congress of European College of Sport & Exercise Physicians - Conference Brochure 2010: Abstracts and CVs (2010, September 09)

Introduction: Tendinopathies are common in sport and affect both upper and lower limbs. Eccentric rehabilitation is a successful way of treating them and now is becoming the “gold treatment”. Although ... [more ▼]

Introduction: Tendinopathies are common in sport and affect both upper and lower limbs. Eccentric rehabilitation is a successful way of treating them and now is becoming the “gold treatment”. Although clinical results are very favorable, beneficial morphological and histological effects have not yet been elucidated. The aim of our experiment was to determine if there exist any intrinsic modifications in a tendon trained in concentric or eccentric modes, in a rat model. Methods: 18 rats were divided into 3 groups: 6 for the control group, without physical restraint; 12 for a training of1 hour, 3 times a week, for 5 weeks, at a speed of 17m/min (1km/h), on a inclined treadmill: 6 rats running uphill at +15° for the concentric effort (group C) and 6 rats running downhill at -15° for the eccentric effort (group E). After this training period, the Achilles, patellar and tricipital tendons of both limbs were surgically removed in all 18 rats. Tendons taken from five rats of each group were subjected to a tensile test up to rupture using a “cryo” jaw. Tendons of the remaining rat of each group were subjected to a histological study. Results: The results showed significant changes in group E only: (1) an increase of the force required to rupture the patellar and tricipital tendons; (2) an improvement of the ratio between the force necessary to rupture the tricipital tendon and the body mass of the rats; (3) an increase of the surface area of the section of the tricipital tendon. No significant change was observed as far as constraint was concerned between groups. Histologically, we saw, in the group E, more peripheral blood vessels and a greater proportion of collagen. Conclusion: This study showed that the mechanical properties of tendon tissue are enhanced by eccentric training. Tendons become stronger, the amount of collagen increases and there is probably more interaction between collagen fibers (mechanotransduction). [less ▲]

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See detailSpoken sentence comprehension in children with developmental dyslexia
Leclercq, Anne-Lise ULg; Majerus, Steve ULg; Guasti, Maria Teresa et al

Poster (2010, September 09)

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See detailImplantation des cultures
Bodson, Bernard ULg; Roisin, Christian; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailVariétés - 2. Escourgeon et Orge d’hiver fourragers
Monfort, Bruno; Couvreur, Luc; Jacquemin, Guillaume et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailLes conceptions de l'entreprise sociale en Europe et aux Etats-Unis: convergences et divergences
Defourny, Jacques ULg; Nyssens, Marthe

in Revue Internationale de l'Economie Sociale : Recma, Revue des Etudes Coopératives, Mutualistes et Associatives (2010, September 09), 319(janvier 2011), 18-35

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See detailLinking abstract form and grammatical function : a construction-grammar experiment
Parisse, Christophe; Maillart, Christelle ULg

Poster (2010, September 09)

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See detailFroment 2010 : une réédition de 2006 ?
Sinnaeve, Georges; Gofflot, Sébastien; Chandelier, Anne et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailA model of subclinical chronic bronchitis induced by repeted nebulisations of bacterial lipopolysaccharide
Krafft, Emilie ULg; Bolognin, M.; Tual, Charlotte ULg et al

in 20th ECVIM Meeting - Toulouse - France - 9-12 septembre 2010 (2010, September 09)

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See detailVariétés - 1. Froment d'hiver
Seutin, Benoit ULg; Vancutsem, Françoise ULg; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailProcollagen type III amino terminal propeptide concentration in dogs with iodiopathic pulmonary fibrosis, chronic bronchitis and eosinophilic bronchopneumopathy
Heikkilä, H. P.; Krafft, Emilie ULg; Jespers, P. et al

in 20th ECVIM Meeting - Toulouse - France - 9-12 septembre 2010 (2010, September 09)

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See detailVariétés - 3. Orge de brasserie
Monfort, Bruno; Bodson, Bernard ULg

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailOpening the black box : agencies as socio-technical networks
Fallon, Catherine ULg; Thoreau, François ULg; Joris, Geoffrey ULg

Conference (2010, September 09)

Agencies have historically developed in Belgium, endorsing public activities not only at the federal level, but also at the level of decentralised governments (regions and communities). The current ... [more ▼]

Agencies have historically developed in Belgium, endorsing public activities not only at the federal level, but also at the level of decentralised governments (regions and communities). The current landscape in the Southern part of the county is more and more taking the form of a mosaic with very little efforts in terms of cooperation : this is particularly true when the agencies addressing similar target groups in a given sector are responding to different levels of governments with very little interaction, the coordination being organised by the users' themselves, according to their own strategies. At the same time, some agencies are taking more of a centre stage position : they not only provide services and support to their target group, they also fruitfully contribute to their status and identity building. Using a cultural approach may help study the "art of the state" in its diversity (Hood, 1998). We propose to concentrate the analysis on the emergence of two Agencies whose mission is to support professionals working in the public sector. Based on a recent field work on the transformation of the sector of public research, we will analyse how the FNRS (an agency funding public research) succeeded to survive as an independent agency through since 1928 (Halleux & Xhayet, 2008), adapting to the transforming socio-political context: it emerged as an industry based project and transformed into a "mertonian" institution of knowledge contributing to unify the scientific community at the level of the country, while bypassing the historical divisions of the three worlds of universities in the country (Fallon, 2009). A diachronic analysis helps underline how socially constructed is such an institution, and how the configuration of networks are continuously reshaping themselves to better be embedded in a specific historic society (Laborier, 2003). The FNRS is currently struggling to define new forms of cooperation with the universities (and their researchers) which are themselves embarked in the current stream of transformations introducing techniques derived from New Public Management in research organisations (de Boer, Enders, Schimank, 2007). In quite a different sector, another field work using the same methodological approach analysed the emergence of a very recent agency, EASI-WAL, serving the regional administration in order to encourage administrative simplicity (OCDE, 2003, 2005) and reported the shortcomings of this organisation in organising avenues for professional change with the civil servants (Thoreau, Fallon, Joris,2009). The two field work research were organised as case study analysis, with document analysis, face to face interviews and in situ observation, using research tools derived from the sociology of science (Actor-Network Theory in Callon,1986). The paper will present the outcomes of the analysis of the dynamics of the cooperation between the agency and its target groups (FNRS & researchers; EASI-WAL & civil servants) and their outcomes in terms of innovation and organisational learning. We observe the implementation of two institutions both designed to support the emergence of some common goal within their target collectives (elitist -research; administrative simplicity): they autonomously gave shape to their internal procedures of categorisation and hierarchisation, with identification processes contributing to the definition of institutional boundaries defining a specific field while ensuring its inscription in the network through a specific legitimating strategy (Douglas, 1986). This analysis will unveil some of the mechanisms of cooperation of the different stakeholders supporting the institution, and also the struggle between stakeholders for the definition of settings of participation and administrative and political control. [less ▲]

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See detailStylistic Issues in New Nigerian Literature
Tunca, Daria ULg

Poster (2010, September 09)

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See detailHeroin-Assisted Treatment as a treatment of criminal behaviour?
Demaret, Isabelle ULg; Litran, Géraldine; ANSSEAU, Marc ULg et al

Conference (2010, September 08)

Background: TADAM, a randomised controlled trial of heroin-assisted treatment, will begin in Liège, Belgium, in 2010. This trial will compare two groups of patients: one in a heroin-assisted treatment and ... [more ▼]

Background: TADAM, a randomised controlled trial of heroin-assisted treatment, will begin in Liège, Belgium, in 2010. This trial will compare two groups of patients: one in a heroin-assisted treatment and the other in oral methadone treatment. In this new medical treatment, the criminal behaviour of the patients will also be assessed. It is one of the three efficacy criteria. Why? Methodology: We based our presentation on papers published on heroin-assisted treatment concerning changes in criminal behaviour. Results: Heroin-assisted treatment of treatment resistant heroin addicts has been successfully tested in six countries: Switzerland, The Netherlands, Spain, Germany, Canada and United-Kingdom. Each country has also assessed the criminal behaviour before and after the treatment with better results for heroin-assisted treatment than for methadone treatment. Conclusion: HAT seems a good way to treat criminal behaviour of a group: severely heroin addicts who already tried other treatments. [less ▲]

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See detailShear Bolted Connections : Numerical Model for a Ductile Component, the Plate-Bolt Bearing
Henriques, J; Ly, L; Jaspart, Jean-Pierre ULg et al

Conference (2010, September 08)

In order to achieve a fill! plastic distribution of forces in a shear bolted connection, ductility is required to the steel plate and to the [JltII€<b0lI contact zone in the firstly loaded bah rows ... [more ▼]

In order to achieve a fill! plastic distribution of forces in a shear bolted connection, ductility is required to the steel plate and to the [JltII€<b0lI contact zone in the firstly loaded bah rows, Knowing t/1at bolts present a brittle behavior, deformation capacity has to be obtained front ductile components as the plate-bolt in bearing. In the present paper a numerical model is proposed to evaluate the plate-bolt in bearing component. The main objective is not only to achieve it elastically but to obtain a good approximation of the post-elastic response. The proposed model has been successfully validated hv €.\p£'I‘iNtellt£1l tests on shear bolted connections petjformed at the Delft University of Technology and at the University of Ljubljana. The EC 3 Part 1.8 [1] approach, to evaluate resistance and initial stiflitess of the plate—bolt in bearing component, is included in the comparison and discussion ofresttlts. [less ▲]

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See detailEffets respiratoires de l'anesthésie locorégionale
Brichant, Jean-François ULg

Conference (2010, September 07)

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