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See detailBruxelles : les défis territoriaux d'une mini-ville mondiale
Halleux, Jean-Marie ULg

Conference given outside the academic context (2012)

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See detailCerebrospinal Fluid Collection Tubes: a critical issue for Alzheimer Disease diagnosis
Perret-Liaudet, Armand; Pelpel, Mathieu; Tholance, Yannick et al

in Clinical Chemistry (2012), 58

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See detailRelevance of pedotopographical indicators in the assessment of spatial distribution of soil water resources under forest stands. General Methodology.
Ridremont, François ULg; Claessens, Hugues ULg

Poster (2012, February 08)

Water resources constitute one of the most decisive factors of the adaptation of forest ecosystems facing climate changes. The assessment of soil water resources should lead a better understanding of ... [more ▼]

Water resources constitute one of the most decisive factors of the adaptation of forest ecosystems facing climate changes. The assessment of soil water resources should lead a better understanding of forest sites vulnerability to water stress and provide appropriate management recommendations for the choice of trees species and sylvicutlural techniques. This study aims to confront mapping pedotopographical indicators related to the water resource richness of forest sites to the soil moisture regime. The effect of soil moisture on the forest ecosystem productivity and the bioindicator expression of flora will be study too. [less ▲]

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See detailOxford Centre for Evidence‐Based Medicine 2011 Levels of Evidence ‐ Traduction française
OCEBM Levels of Evidence Working Group; Durieux, Nancy ULg; Pasleau, Françoise ULg et al

E-print/Working paper (2012)

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See detailDiurnal CO2 flux responses in cultivated savanna in Benin (West Africa)
Ago, Expédit Evariste ULg; Agbossou, Euloge Kossi; Galle, Sylvie et al

Scientific conference (2012, February 08)

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See detailEnergetic systems evaluation using Life Cycle Assessment
Belboom, Sandra ULg; Léonard, Angélique ULg

Scientific conference (2012, February 08)

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See detailActualités du droit des marchés publics
Durviaux, Ann-Lawrence ULg

Conference given outside the academic context (2012)

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See detailCooccurrences des personnes dans le discours de l'enfant: une approche statistique de la construction de l'identité
Poudat, Céline; Gauthier, Jean-Marie ULg; Boulard, Aurore ULg

Conference (2012, February 08)

L’acquisition de la représentation du temps nous donne, avec le développement du langage, accès à la narrativité. Ces histoires que nous racontons aux enfants leur permettent d’accéder au monde de la ... [more ▼]

L’acquisition de la représentation du temps nous donne, avec le développement du langage, accès à la narrativité. Ces histoires que nous racontons aux enfants leur permettent d’accéder au monde de la signification. Peu à peu l’enfant s’approprie sa propre histoire en même temps qu’il constitue son identité. Le concept de self narrative (Denett, 1991), matérialisé dans le discours par l’utilisation des pronoms personnels, est un premier produit de cette évolution. Il est donc intéressant de connaître la manière dont se construit ce récit qui deviendra autobiographique à l’adolescence. [less ▲]

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See detailStudy of pesticide retention on leaves using high-speed imaging
Massinon, Mathieu ULg; Lebeau, Frédéric ULg

Poster (2012, February 08)

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See detailparticipation politique, diaspora congolaise et transnationalismes
Demart, Sarah ULg; Bodeux, Leila

Conference (2012, February 08)

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See detailTraining image scenarios for the Meuse alluvial aquifer and consistency with geophysical data
Hermans, Thomas ULg; Caers, Jef; Nguyen, Frédéric ULg

Poster (2012, February 08)

Recently, multiple-point statistics (MPS) introduced the training image (TI) concept to replace the variogram within an extended sequential simulation in order to describe more accurately multimodal ... [more ▼]

Recently, multiple-point statistics (MPS) introduced the training image (TI) concept to replace the variogram within an extended sequential simulation in order to describe more accurately multimodal distributions, with interconnected and curvilinear structures, such as those of alluvial plains. The role of the TI is to depict the conceptual geological patterns and it should be representative of the geological heterogeneity. MPS consists in extracting patterns from the training image, and anchoring them to subsurface data (e.g. well-log, seismic and production data). The construction of TI is one of the most critical and important step of MPS. Sedimentological studies may not be always available in a particular area. In this work, the alluvial aquifer of the Meuse river in the area of Liege is being investigated and there is few sedimentological data to build directly 3D conceptual model of the aquifer. In this context, we used general features of the Meuse river (slope, rate of flow, type of fluvial system) to select hydrofacies (based on a lithological classification in clay, sand and gravel) and their geometrical characteristics (channels and lobes of different sizes). Then several scenarios were built using these parameters to represent the uncertainty related to different possible geological scenarios. To verify the consistency of these TIs, a comparison with 2D electrical resistivity tomography data was carried out. 2D sections were randomly selected in the TIs and several cases were analyzed including the size of channels and lobes, the influence of surface resistivity in the results and the influence of the electrical resistivity of each facies. Forward and inverse electrical resistivity modelling was conducted on these synthetic models and the results were compared to field cases. The approach followed for the comparison is based on the calculation of a Euclidean distance between models and the visualization in a 2D or 3D space using multidimensional scaling (MDS). This technique allows verifying if field cases fall in the distribution represented by synthetic cases. In a second step, a cluster analysis was achieved on the MDS-map to provide a sensitivity analysis and to highlight which parameters were the most important for building training images. Then, the probability of each scenario was evaluated for the field cases using conditional probability. Conditional probability requires the calculation of the density function corresponding to the probability of the data given a geological scenario. This density function was obtained using a kernel density estimation technique based on the observations of the 2D MDS-map. Both the cluster analysis and the calculation of conditional probabilities for uncertain geological scenarios show that some parameters are not very sensitive (size of clay lenses, surface resistivity distribution) and that we can narrow the range of variations of some parameters (facies electrical resistivity values, gravel bodies size is more likely small, etc.). It shows that the investigation of the consistency of TI is an important step in each study including MPS. The next steps of the study are to generalize the analysis of the consistency of geological scenario with 3D geophysical data instead of 2D sections and to incorporate geophysical data as soft conditioning data for MPS simulations. [less ▲]

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See detailInfluence de l'apport de différentes sources lipidiques en fin de gestation sur les résultats techniques des truies allaitantes et de leurs porcelets
Boudry, Christelle ULg; Vanrobays, Marie-Laure ULg; Devos, Sven

in IFIP; INRA (Eds.) 44èmes journées de la Recherche Porcine (2012, February 08)

From day 103 in gestation until farrowing, 4 successive groups of 15 sows received 70 g per day of one of the 3 following oils: 1) coconut oil (CO); 2) fish oil (FO) and 3) shark liver oil (SO). At day ... [more ▼]

From day 103 in gestation until farrowing, 4 successive groups of 15 sows received 70 g per day of one of the 3 following oils: 1) coconut oil (CO); 2) fish oil (FO) and 3) shark liver oil (SO). At day 102 of gestation, at farrowing and at weaning, backfat thickness of the sows was determined. The total number of piglets, the number of piglets born alive, stillborn and dead during the suckling period and the duration of gestation were measured. At birth as well as 24 hours, 14 days and 28 days (weaning) later, the piglets were weighed individually. Colostrum samples were collected at farrowing and 24 hours later for the determination of IgG and IgA contents and the fatty acid profile. Neither performance parameters of the sows nor IgG and IgA concentrations in colostrum were affected by the different dietary treatments. This was probably due to the short duration of trial period in which the oil supplements were administered. However, the colostral fatty acid profiles reflected very well the profiles of the supplemented oils. Furthermore, the different treatments affected the growth performances of the piglets. At weaning, the piglets from the FO treatment were respectively 263 and 329 g heavier than the piglets from the SO and CO treatments (P < 0.05). This corresponded to 4.2 % and 5.8 % increase of the ADG in comparison to the SO and CO treatments, respectively. These results show the importance of the fatty acid composition in colostrum on the performances of piglets and consequently the importance of the feeding of sows at the end of gestation. [less ▲]

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See detailBall milling control: the reconciliation of macroscopic SensoMag® data with microscopic optical information.
Leroy, Sophie ULg; Köttgen, Axel ULg; de Haas, Bernard et al

Poster (2012, February 08)

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See detailDesign of a biofilm reactor comprising a metal structured packing for the production of lipopeptides by B. subtilis
Zune, Quentin ULg; Ongena, Marc ULg; Toye, Dominique ULg et al

Poster (2012, February 08)

Abstract : The design of a new single species biofilm bioreactor has been investigated. Bacillus subtilis S499 has been chosen as a model organism for the production of lipopetides. Nevertheless ... [more ▼]

Abstract : The design of a new single species biofilm bioreactor has been investigated. Bacillus subtilis S499 has been chosen as a model organism for the production of lipopetides. Nevertheless, considering the surface active properties for this kind of metabolite, processes based on submerged culture in stirred-tank bioreactor involve the use of important amount of antifoam and therefore downstream processes are tedious. In this work, an original process was developed with an experimental setting leading to the suppression of foam formation during the culture. B. subtilis S499 makes a biofilm on a stainless steel structured packing in the top of a bioreactor, nutrient and oxygen supply being carried out by the media recirculation as liquid film on the packing. Lipopeptides secreted by biofilm are accumulated in the liquid phase under the packing and can reach concentrations as high as 800 mg/l. The colonization of the packing by the biofilm has been monitored by X-ray tomography. [less ▲]

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See detailActualités du droit des marchés publics : les options et les variantes
Durviaux, Ann-Lawrence ULg

Conference given outside the academic context (2012)

Detailed reference viewed: 332 (12 ULg)