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See detailEFFECT OF DIFFERENT WARMING-UP PROTOCOLS ON TIME TO EXHAUSTION AT MAXIMAL AEROBIC SPEED
Rodriguez de la Cruz, Carlos ULg; Brennenraedts, C.; Bury, Thierry ULg

in British Journal of Sports Medicine (2011), 45

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See detailQuantitative evaluation of fluid resuscitation in burn children : a retrospective study.
ROUSSEAU, Anne-Françoise ULg; LEDOUX, Didier ULg; RICHARD, Patrick et al

in Burns : Journal of the International Society for Burn Injuries (2011), 37(suppl 1), 12

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See detailCatalogue des monnaies islamiques du Musée Bottacin
Bauden, Frédéric ULg

Book published by Esedra Editrice (2011)

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See detailConfronter les idées : un exemple de conciliation litigieuse chez Simplicius
Gavray, Marc-Antoine ULg

in Études platoniciennes (2011), 8

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See detailConclusion: le changement institutionnel comme action continue
Claisse, Frédéric ULg

in Piet, Grégory; Wintgens, Sophie (Eds.) Penser les institutions (2011)

Conclusion du troisième après-midi de recherche organisé par le Département de Science politique de l'ULg, sur le thème: "penser les institutions", qui s'est tenu à Liège le 10 novembre 2010.

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See detailIntrogression of Pythium root rot resistance gene into Rwandan susceptible common bean cultivars
Nzungize, J.; Gepts, P.; Buruchara, R. et al

in African Journal of Plant Science (2011), 5(3), 193-200

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See detailMohammed Arkoun (1928-2010): L’affranchissement de la raison critique en contextes islamiques
Nachi, Mohamed ULg

in Hermès (2011), 59

Présenter les grandes lignes de la pensée de Mohammed Arkoun pour souligner sa contribution pour l'étude critique de la pensée islamique.

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See detailL'exemple en question
Letawe, Céline ULg; Cormann, Grégory ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (2011)

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See detailIn vitro evaluation of the fermentation characteristics of the carbohydrate fractions of hulless barley and other cereals in the gastrointestinal tract of pigs
Jha, Rajesh; Bindelle, Jérôme ULg; Rossnagel, Brian et al

in Animal Feed Science & Technology (2011), 163

An in vitro model was used to study the fermentation characteristics of carbohydrate fractions of hulless barley (hB), in comparison to hulled barley (HB), hulled oat and oat groats (OG) in the pig ... [more ▼]

An in vitro model was used to study the fermentation characteristics of carbohydrate fractions of hulless barley (hB), in comparison to hulled barley (HB), hulled oat and oat groats (OG) in the pig intestine. For this purpose, 6 hulless barley cultivars (hB), varying in β-glucan content (36-99 g/kg DM), were compared to 3 HB cultivars, 2 oat groat samples (OG), 3 oat varieties and a reference sample of wheat. The residue of a pepsin-pancreatin hydrolysis was incubated in a buffered mineral solution inoculated with pig faeces. Gas production, proportional to the amount of fermented carbohydrates, was measured for 48 h and kinetics modelled. The fermented solution was subsequently analyzed for microbial production of short-chain fatty acids (SCFA) and ammonia. In vitro dry matter degradability varied according to ingredient (P<0.001). Higher values were observed for OG, ranging from 0.88 to 0.99 as compared to oat, hB and HB, for which degradability ranged from 0.63 to 0.73, 0.68 to 0.80 and 0.69 to 0.71, respectively. A “cereal type” effect (P<0.05) was observed on fermentation kinetics parameters. Total gas production was higher (P<0.05) with hB (224 ml/g DM incubated) than with HB and oat (188 and 55 ml/g DM incubated, respectively). No difference was observed between hB cultivars (P>0.05) for total gas production but differences (P<0.001) were found for lag time and the fractional rate of degradation. Hulless barley cultivar CDC Fibar (waxy starch) and CDC McGwire (normal starch) started to ferment sooner (lag time of 0.7 and 0.9 h, respectively) than SH99250 (high amylose starch; 1.7 h). The fractional rate of degradation was similar in both hB and OG (0.15/h on average), which was higher than that of HB (0.12/h). The production of SCFA was also higher (P<0.05) with hB (6.1 mmol/g DM incubated, on average) than with HB and oat (4.9 and 2.9 mmol/g DM incubated, respectively). Similar trends were found for SCFA production expressed per g fermented carbohydrates, with higher butyrate and lower acetate ratio. In contrast, oat fermentation generated higher (P<0.05) ammonia concentration (1.4 mmol/g DM incubated, on average) than hB (1.0 mmol/g DM incubated). In summary, hulless barleys, irrespective of cultivar type had higher in vitro fermentability and produced more SCFA and less ammonia than hulled barley and oat. Thus, hulless barleys have a better potential to be used in pig nutrition to manipulate the fermentation activity in the intestine of pigs. [less ▲]

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See detailRésumé C.E. n° 211.023, du 3 février 2011, Dalhem et csrts.
Delnoy, Michel ULg

in Aménagement - Environnement (2011), 3

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See detailStatistical analysis of low-flow based on short time series. The case of Wallonia
Verstraete, Arnaud ULg; Gailliez, Sébastien; Degre, Aurore ULg

in Geophysical Research Abstracts (2011), 13

The floods have always been the main concern resulting of extreme weather conditions. Now droughts and low flows are more and more recognized as risk situations due to the huge consequences of water ... [more ▼]

The floods have always been the main concern resulting of extreme weather conditions. Now droughts and low flows are more and more recognized as risk situations due to the huge consequences of water shortage. Furthermore, the changing climate context constitutes a new threat even if the uncertainty in low-flows evolution remains high. In Wallonia (Southern part of Belgium), a knowledge gap remains on statistical analysis of low-flows. In this paper, we present a study of historical data in Walloon Region and the first steps of their statistical analysis. Wallonia is one of the three regions of Belgian federal state. It covers an area of 17000 km² and spreads on 4 districts (Meuse, Escaut, Rhin, Senne). The watercourses are divided in navigable watercourses (700km), not navigable watercourses that are listed in 3 categories (14300km) and streams that are not navigable and not listed (4000km). Hydrological monitoring has a short history in Wallonia. The first monitoring site was installed in 1960. It consisted in a limnimetric scale and daily manual readings. Since 1974, hourly data are recorded. The number of measurement sites reached 244 stations in 2011. About 60 % of the monitoring sites have less than 20 years of hourly data. A qualitative analysis of monitoring stations led us to disregard 184 stations. The main quality problems were important discharge rating curve extrapolation, algae development in summer or low flow inferior to 5l/s. In preparation for a statistical analysis of low-flows, the old manual daily readings were analyzed. Unusable in high flow situations, they still hold practical and usable information during drought. This analysis allowed us to extend the registration period up of 7 stations and to recover 16 stations. There were lots of missing data during the 1960-1994 period, due to a poor management of the monitoring network. A yearly hydrograph analysis leads us to keep years of partial measurement when the gaps were found to be out of the low-flow period. The monitoring sites presenting more than 20 years of readings were selected for the statistical analysis. A homogeneity test was performed. Finally 64 out of 244 monitoring sites are kept for the frequency analysis. The indicators used to characterize low-flows are the popular Q95 and MAM7. Five below bounded distributions are tested with the HYFRAN software: Weibull (2 parameters), log-normal 2 parameters and 3 parameters, Gamma and Pearson type III. The parameters of the laws are estimated by the maximum likelihood estimation. The selection of the three best laws is performed for each site thanks to three Bayesian criterions proposed by HYFRAN. Then the distribution that fits the best the data is visually chosen. The results of the adjustment method are the same for the two indicators. The Gamma distribution is the most used followed by the lognormal with 2 parameters. However in some cases a law of three parameters is more appropriate. This preliminary work gives a first analysis of low-flows statistics in Wallonia. Yet a lot of missing data or short recording duration still limits our knowledge, this analysis allows us to progress towards best management practices in rivers and watersheds. [less ▲]

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See detailDétection de zones humides dans le béton par GPR en présence d’un gradient d’humidité.
Louis, Arnaud ULg

Master's dissertation (2011)

The objective of this master thesis is to highlight the impact of the presence of a humidity gradient on the detection of a wet area in concrete by combining a numerical approach and experimental results ... [more ▼]

The objective of this master thesis is to highlight the impact of the presence of a humidity gradient on the detection of a wet area in concrete by combining a numerical approach and experimental results. In order to achieve this objective, several models have been conducted using a numerical simulation program of electromagnetic waves propagation. Influence of the size of the gradient, but also their position and shape, have been studied. Meanwhile, two experimental programs have been established in order to artificially generate a gradient of moisture into the concrete. This gradient was established by capillary rise in one case and by drying in the other case. Humidity sensors placed in the slabs allowed us to control the evolution of the transition zone located above the wet area. We tried then to correlate the evolution of the gradient with results from a Ground Penetrating Radar with 2.3 GHz antenna. We studied the influence of the gradient on the evolution with time of the electromagnetic field. This experimental program required many preliminary tests to define the dielectric properties of the slabs and the specific response of the sensors. Based on modeling, we concluded that the detection of the wet area remains possible as long as it is far enough from the direct wave and as its thickness is less than 2/5 of the signal wavelength. Regarding the experimental results, we were able to highlight the signal evolution with regard to the evolution of the moisture gradient. In the case of capillary rise, we were also able to confirm the trends predicted by modeling. [less ▲]

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See detailCharacterization of BoHV-5 field strains circulation and report of transient specific subtype of bovine herpesvirus 5 in Argentina
Maidana, S. S.; Ladelfa, M. F.; Perez, S. et al

in BMC Veterinary Research (2011), 7

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See detailApplied training physiology
Art, Tatiana ULg

in 5th Edition of the European Equine Health & Nutrition Congress (5th EEHNC) (2011)

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See detailResistant prolactinomas
Vasilev, V.; Daly, Adrian ULg; VROONEN, Laurent ULg et al

in Journal of Endocrinological Investigation (2011), 34

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See detailSluse, ses perles et son algorithme
Bair, Jacques ULg; Henry, Valérie ULg

in Losanges (2011), 14

Cet article fait découvrir un savant belge, né à Visé, du 17 ème siècle dont l'oeuvre scientifique fut importante dans le développement des mathématiques.

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See detailDémarches participatives et approches quali-quantitatives. Le projet logiciel Mesydel 2012
François, Aurore ULg; Rieppi, Stéphane ULg; Thiry, Aline ULg

in Claisse, Frédéric; Laviolette, C.; Reuchamps, M. (Eds.) et al La participation en action (2011)

Depuis plusieurs années, le laboratoire Spiral (Université de Liège, Département de Science politique), recourt régulièrement à la méthode Delphi pour mener certaines de ses recherches. Cette méthode ... [more ▼]

Depuis plusieurs années, le laboratoire Spiral (Université de Liège, Département de Science politique), recourt régulièrement à la méthode Delphi pour mener certaines de ses recherches. Cette méthode itérative de consultation d'experts, privilégiant l'anonymat et le recours à l'écrit, s'est ainsi vue librement adaptée – comme bien d'autres méthodes d'ailleurs – aux défis du participatif. Le traditionnel « panel d'experts » a ainsi largement été redéfini, autorisant, voire privilégiant, le recours aux experts dits « d'usage » dans le cadre de recherches se revendiquant des méthodologies participatives. En 2008, le laboratoire Spiral a élaboré son propre logiciel, Mesydel, permettant de mener en ligne un processus d'enquête Delphi complet : création de questionnaires, invitation des participants à le compléter, analyse et synthèse des réponses qui serviront de base à la préparation du questionnaire suivant (suivant le principe de la « rétroaction contrôlée »), traitement des données. Au fil de son histoire, l'approche du Mesydel s'est par ailleurs étoffée et diversifiée. Privilégiant à l'origine une analyse qualitative des contenus récoltés, le logiciel a progressivement intégré une série d'outils permettant des traitements plus quantitatifs. À ce jour, Mesydel peut se revendiquer d'une approche dite mixte, combinant des traitements qualitatifs et quantitatifs, et ce sur un même corpus de données. Ces multiples adaptations à partir du Delphi traditionnel, à savoir l'ouverture au participatif d'une part, et la transposition en ligne d'autre part, de même que l'inscription progressive du Mesydel dans les méthodes de recherche dites mixtes, constituent autant d'éléments qui n'ont pas manqué (et continuent) de nourrir les réflexions méthodologiques au sein du laboratoire, parmi les chercheurs, utilisateurs et développeurs de l'outil. Cette contribution propose de faire le point sur ces différents enjeux, à partir d'exemples tirés du projet de recherche ANACO – Analyse et opérationnalisation de la mesure de mise à l'abri et de confinement en Belgique, recherche effectuée en 2011 (financement IBZ – Ministère de l'intérieur). [less ▲]

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See detailIntroduction à la chromatographie liquide
Debrus, Benjamin ULg; Hubert, Philippe ULg

Learning material (2011)

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See detailMultimodal neuroimaging in patients with disorders of consciousness showing "functional hemispherectomy".
Bruno, Marie-Aurélie ULg; Fernandez-Espejo, D.; Lehembre, Remy ULg et al

in Progress in Brain Research (2011), 193

Beside behavioral assessment of patients with disorders of consciousness, neuroimaging modalities may offer objective paraclinical markers important for diagnosis and prognosis. They provide information ... [more ▼]

Beside behavioral assessment of patients with disorders of consciousness, neuroimaging modalities may offer objective paraclinical markers important for diagnosis and prognosis. They provide information on the structural location and extent of brain lesions (e.g., morphometric MRI and diffusion tensor imaging (DTI-MRI) assessing structural connectivity) but also their functional impact (e.g., metabolic FDG-PET, hemodynamic fMRI, and EEG measurements obtained in "resting state" conditions). We here illustrate the role of multimodal imaging in severe brain injury, presenting a patient in unresponsive wakefulness syndrome (UWS; i.e., vegetative state, VS) and in a "fluctuating" minimally conscious state (MCS). In both cases, resting state FDG-PET, fMRI, and EEG showed a functionally preserved right hemisphere, while DTI showed underlying differences in structural connectivity highlighting the complementarities of these neuroimaging methods in the study of disorders of consciousness. [less ▲]

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