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See detailCartes, pouvoir, fiction et traduction.
Bodart, Céline ULg

in BONZANI, Stéphane; GUEZ, Alain (Eds.) Représenter la transformation. Temporalités des milieux habités. (2016)

Comment observer le monde en transformation ; comment représenter et se représenter le monde toujours déjà pris dans sa transformation ? Il ne s'agira pas ici de répondre à ces questions, mais de ... [more ▼]

Comment observer le monde en transformation ; comment représenter et se représenter le monde toujours déjà pris dans sa transformation ? Il ne s'agira pas ici de répondre à ces questions, mais de travailler avec elles. Pas de solution inéluctable ni d'annonce de savoirs inédits, juste une déclinaison de ces questions à travers différents champs et pratiques de pensées. Si ces questions de représentation se sont déjà engagées dans le domaine des savoirs cartographiques, il y a à présent lieu de forcer pour d'autres leur traduction, d'abord artistique et ensuite, peut-être, architecturale. [less ▲]

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See detailLong-term analysis of rainfall and temperature data in Burkina Faso (1950–2013)
De Longueville, Florence; Hountondji, Yvon-Carmen; Kindo, Issa et al

in International Journal of Climatology (2016)

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See detailThe impact of factors related to retirement on cognitive functioning
Grotz, Catherine ULg; Adam, Stéphane ULg; Matharan, Fanny et al

in International Psychogeriatrics (2016), 27(supplement S1), 45-69

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See detailThe EU and Brazil in a changing world: strategic partners or competitors?
Santander, Sébastian ULg

in Smith, Michael; Keukeleire, Stephan; Vanhoonacker, Sophie (Eds.) The Diplomatic System of the European Union Evolution, Change and Challenges (2016)

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See detailFootball et publicité : les structures sémiotiques de médiation entre deux pratiques de la culture moderne
Bassilua Nzuzi, Anicet ULg

Conference (2016)

One of the questions raised by the meeting of these two practices is about the nature of this interaction soccer-advertising. When scrutinizes closely, one realizes that advertising discourse that unfolds ... [more ▼]

One of the questions raised by the meeting of these two practices is about the nature of this interaction soccer-advertising. When scrutinizes closely, one realizes that advertising discourse that unfolds on the football field seems to strive to incorporate into its narrative codes of this discipline, it tries to reshape at will to fulfill its own pragmatic goals, which are registered in an argumentative persuasive Contract type opposite to those of football, which basically works based on a dichotomous rhetoric and diagram of the test. This can be seen especially through the exploitation by advertisers of functional units of the footballing universe, such players, the ball, the view of the stadium, etc., which they associate with their products. Our work intend to identify and describe the semiotic structures through which football-advertising encounter takes place, so to realize this duplication. We focus on football stadiums. [less ▲]

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See detailDifferential Expression of Genes and DNA Methylation associated with Prenatal Protein Undernutrition by Albumen Removal in an avian model
Willems, E.; Guerrero-Bosagna, C.; Decuypere, E. et al

in Scientific Reports (2016), 6

Previously, long-term effects on body weight and reproductive performance have been demonstrated in the chicken model of prenatal protein undernutrition by albumen removal. Introduction of such persistent ... [more ▼]

Previously, long-term effects on body weight and reproductive performance have been demonstrated in the chicken model of prenatal protein undernutrition by albumen removal. Introduction of such persistent alterations in phenotype suggests stable changes in gene expression. Therefore, a genomewide screening of the hepatic transcriptome by RNA-Seq was performed in adult hens. The albumendeprived hens were created by partial removal of the albumen from eggs and replacement with saline early during embryonic development. Results were compared to sham-manipulated hens and non-manipulated hens. Grouping of the differentially expressed (DE) genes according to biological functions revealed the involvement of processes such as 'embryonic and organismal development' and 'reproductive system development and function'. Molecular pathways that were altered were 'amino acid metabolism', 'carbohydrate metabolism' and 'protein synthesis'. Three key central genes interacting with many DE genes were identified: UBC, NR3C1, and ELAVL1. The DNA methylation of 9 DE genes and 3 key central genes was examined by MeDIP-qPCR. The DNA methylation of a fragment (UBC-3) of the UBC gene was increased in the albumen-deprived hens compared to the nonmanipulated hens. In conclusion, these results demonstrated that prenatal protein undernutrition by albumen removal leads to long-term alterations of the hepatic transcriptome in the chicken. [less ▲]

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See detailCan breeder reproductive status, performance and egg quality be enhanced by supplementation and transition of n-3 fatty acids?
Delezie, E.; Koppenol, A.; Buyse, J. et al

in Journal of Animal Physiology and Animal Nutrition (2016)

Summary: The aim of this experiment was to investigate the effect of n-3 fatty acid (FA) supplemented diets on breeder performance, productivity and egg quality. Breeders (n = 480) were fed the ... [more ▼]

Summary: The aim of this experiment was to investigate the effect of n-3 fatty acid (FA) supplemented diets on breeder performance, productivity and egg quality. Breeders (n = 480) were fed the supplemented diet from 18 weeks onwards; the inclusion level of n-3 FA was increased from 1.5% to 3.0% from 34 weeks of age onwards until 48 weeks of age. Ross-308 broiler breeders (n = 480) were fed one of four different diets: a basal diet rich in n-6 FA (control diet) or one of three diets rich in n-3 FA. For the n-3 FA diets, eicosapentaenoic acid (EPA, 20:5 n-3) and docosahexaenoic acid (DHA, 22:6 n-3) were fed to the broiler breeders at different ratios formulated to obtain EPA/DHA ratios of 1/1, 1/2 or 2/1. Differences in performance, reproduction and egg quality parameters due to n-3 supplementation were noted more for the 1.5% followed by the 3.0% fed broilers than their 1.5% supplemented counterparts. Egg weight (p < 0.001) and egg mass (p = 0.003) were significantly lower and feed conversion (p = 0.008) significantly higher for the n-3 FA (at 3.0% inclusion level) fed broilers compared to the control group. For the EPA- and DHA-fed breeders, a higher proportional abdominal fat percentage (p = 0.025) and proportional albumen weight (%) (p = 0.041) were found respectively. Dietary treatments did not affect reproduction. It can be concluded that the results of the present experiment indicate no significant differences between treatments at 1.5% inclusion levels. However, increasing this level to 3.0% is not recommended due to the rather negative effects on the measured parameters. It should be further investigated whether these adverse effects were obtained due to (i) the higher supplementation level, (ii) combining a supplementation level of 1.5% with 3% or (iii) the duration of supplementation. © 2016 Blackwell Verlag GmbH. [less ▲]

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See detailVilles connectées. Pratiques transnationales, dynamiques identitaires et diversité culturelle.
Bousetta, Hassan ULg; Gsir, Sonia ULg; Jacquemain, Marc ULg et al

Book published by Presses universitaires de Liège (2016)

Les migrations font aujourd’hui partie du quotidien de toutes les grandes métropoles. Par les mouvements qu’elles impriment, elles rapprochent des territoires éloignés et finissent par former des espaces ... [more ▼]

Les migrations font aujourd’hui partie du quotidien de toutes les grandes métropoles. Par les mouvements qu’elles impriment, elles rapprochent des territoires éloignés et finissent par former des espaces sociaux transnationaux connectant pays d’origine et de destination. Les villes post-migratoires sont à bien des égards des lieux de connexion et d’expérimentation. Elles sont le lieu où se tissent des liens complexes entre acteurs et territoires en apparence éloignés. Les pratiques sociales liées à la mobilité humaine s’inscrivent dans la ville, la modifient et façonnent les contours d’une globalisation par le bas. Cet ouvrage rassemble une série de contributions scientifiques originales qui visent à mieux comprendre comment les migrations internationales transforment tant les sociétés d’origine au Sud que les sociétés d’arrivée au Nord. Les différentes recherches présentées ici invitent à se prémunir contre une idée reçue : celle selon laquelle le contact interculturel que produisent la rencontre et la coexistence de populations migrantes et non-migrantes se jouerait uniformément sur le mode de la conflictualité et du rejet. A bien des égards, il se joue aussi sur le mode de la création et du partage, du rapprochement et de l’éloignement. C’est précisément l’une des originalités de cette publication que de considérer les migrants comme des acteurs inventifs et créatifs. En ouvrant une perspective large sur les migrations, le transnationalisme et les identités, l’ouvrage apporte un regard original et ouvre la voie à une meilleure compréhension de ce phénomène contemporain qu’est la construction d’une urbanité transnationale, mobile et diverse. [less ▲]

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See detailManipulation et mobilisation en cas de cervicalgie
Demoulin, Christophe ULg

in Cochrane (2016)

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See detailInherited determinants of Crohn's disease and ulcerative colitis phenotypes: a genetic association study
Cleynen, Isabelle; Boucher, Gabrielle; Jostins, Luke et al

in Lancet (2016)

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See detailL'impôt sur les revenus des salariés et l'extranéité (1e partie)
Docclo, Caroline ULg

in Journal des Tribunaux du Travail (2016)

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See detailPenser l'évaluation des politiques publiques
Albarello, Luc; Aubin, David; Fallon, Catherine ULg et al

Book published by De Boeck SUpérieur (2016)

L'évaluation permet aux parties prenantes – parlementaires, administration, partenaires ou simples citoyens – de se forger un jugement sur l'action des pouvoirs publics dont la complexité tend à rendre la ... [more ▼]

L'évaluation permet aux parties prenantes – parlementaires, administration, partenaires ou simples citoyens – de se forger un jugement sur l'action des pouvoirs publics dont la complexité tend à rendre la gestion publique de plus en plus opaque. Elle consiste à mesurer les effets propres d'une politique : l’action des pouvoirs publics a-t-elle ou non contribué à atteindre l’objectif fixé, en tout ou partie ? À quel prix ? Des méthodologies ont été développées et expérimentées par des chercheurs spécialisés et la mobilisation de ces méthodes scientifiquement validées permet de professionnaliser et de préciser l’évaluation. Quand une évaluation est menée de façon pluraliste, transparente et reproductible, la discussion publique de ses résultats ne peut qu'améliorer le fonctionnement de notre système démocratique. C’est dans cet effort de compréhension de ce qu’est l’évaluation d’une politique publique que cet ouvrage s’inscrit [less ▲]

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See detailCompeting effects of volume change and water uptake on the water retention behaviour of a compacted MX-80 bentonite/sand mixture
Gatabin, Claude; Talandier, Jean; Collin, Frédéric ULg et al

in Applied Clay Science (2016), 121-122

Bentonite-based materials have been studied as potential barriers for the geological disposal of radioactive waste. In this context, the hydro-mechanical behaviour of the engineered barrier is first ... [more ▼]

Bentonite-based materials have been studied as potential barriers for the geological disposal of radioactive waste. In this context, the hydro-mechanical behaviour of the engineered barrier is first characterized by free swelling conditions (as a consequence of the progressive filling of technological gaps) followed by constant volume conditions. This paper presents an experimental study conducted in order to characterize the water retention behaviour of a compacted MX-80 bentonite/sand mixture. The water retention properties upon wetting were investigated under both free swelling and constant volume conditions. In the high suction range, the water content was not influenced by the imposed volume constraints. On the contrary, swelling significantly affected the water retention behaviour at low suctions, and the quantity of water stored was higher under free swelling conditions than it was under prevented swelling. In this case, competing effects between bentonite swelling and water uptake did not lead to an increase of the degree of saturation upon wetting, as it was observed for samples wetted under constant volume conditions. The influence of the very strong hydro-mechanical coupling is further discussed. [less ▲]

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See detailPolytype Attainability in III-V Semiconductor Nanowires
Johansson, J.; Zanolli, Zeila ULg; Dick, K. A.

in Crystal Growth & Design (2016), 16(1), 371-379

We propose a model that explains the phenomenon of polytypism in metal particle-seeded III-V semiconductor nanowires. The model is based on classical nucleation theory, utilizing the axial next-nearest ... [more ▼]

We propose a model that explains the phenomenon of polytypism in metal particle-seeded III-V semiconductor nanowires. The model is based on classical nucleation theory, utilizing the axial next-nearest-neighbor Ising (ANNNI) model to account for interlayer interaction up to the third nearest-neighboring layer. We investigate the limits of polytypism by varying the ANNNI interaction parameters. These calculations lead to attainability diagrams, which show the regions in interaction energy space where certain polytypes can be attained given that the supersaturation is precisely tuned. We calculate the values of the ANNNI interaction parameters for six common III-V materials from first principles by means of the projector-augmented wave method. We discuss our calculated values in view of previous results. Using these calculated values in our nucleation model, our analysis suggests that besides the commonly observed 3C (zinc blende) and 2H (wurtzite) polytypes the higher order polytypes 4H and 6H can also be attained, in agreement with experimental observations. © 2015 American Chemical Society. [less ▲]

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See detailTargeting the tricuspid valve: A new therapeutic challenge.
LANCELLOTTI, Patrizio ULg; Fattouch, Khalil; DULGHERU, Raluca Elena ULg

in Archives of cardiovascular diseases (2016)

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See detailLarge predatory marine reptiles from the Albian–Cenomanian of Annopol, Poland
Bardet, Nathalie; Fischer, Valentin ULg; Machalski, Marcin

in Geological Magazine (2016)

During the Early–Late Cretaceous transition, marine ecosystems in Eurasia hosted a diverse set of large predatory reptiles that occupied various niches. However, most of our current knowledge of these ... [more ▼]

During the Early–Late Cretaceous transition, marine ecosystems in Eurasia hosted a diverse set of large predatory reptiles that occupied various niches. However, most of our current knowledge of these animals is restricted to a small number of bonebed-like deposits. Little is known of the geographical and temporal extent of such associations. The middle Albian – middle Cenomanian phosphorite-bearing succession exposed at Annopol, Poland produces numerous ichthyosaurian and plesiosaurian fossils. These are mostly isolated skeletal elements (e.g. teeth, vertebrae), but disarticulated partial skeletons and an articulated, sub vertically embedded ichthyosaur skull are also available. The following taxa are identified: ‘Platypterygius’ sp., cf. Ophthalmosaurinae, Ichthyosauria indet., Polyptychodon interruptus, Pliosauridae indet., Elasmosauridae<indet. and Plesiosauria indet. The large-sized ichthyosaur ‘Platypterygius’ and the pliosaurid Polyptychodon interruptus predominate within the upper Albian – middle Cenomanian deposits. The Annopol record, combined with data from England, France and western Russia, suggests that ‘Platypterygius’ and Polyptychodon interruptus formed a long-term, stable ecological sympatry in marine ecosystems of the European archipelago, at least during the Albian – middle Cenomanian. In addition, the marine reptile assemblage from Annopol is distinct from other Eurasian ecosystems in containing also elasmosaurids in its Albian portion. [less ▲]

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See detailRevealing the formation of copper nanoparticles from a homogeneous solid precursor by electron microscopy
Van den Berg, Roy; Elkjaer, Christian; Gommes, Cédric ULg et al

in Journal of the American Chemical Society (2016)

The understanding of processes leading to the formation of nanometer-sized particles is important for tailoring of their size, shape and location. The growth mechanisms and kinetics of nanoparticles from ... [more ▼]

The understanding of processes leading to the formation of nanometer-sized particles is important for tailoring of their size, shape and location. The growth mechanisms and kinetics of nanoparticles from solid precursors are, however, often poorly described. Here we employ transmission electron microscopy (TEM) to examine the formation of copper nanoparticles on a silica support during the reduction by H2 of homogeneous copper phyllosilicate plates, as a prototype precursor for a co-precipitated catalyst. Specifically, time-lapsed TEM image series acquired of the material during the reduction provide a direct visualization of the growth dynamics of an ensemble of individual nanoparticles and enable a quantitative evaluation of the nucleation and growth of the nanoparticles. This quantitative information is compared with kinetic models and found to be best described by a nucleation-and-growth scenario involving autocatalytic reduction of the copper phyllosilicate followed by diffusion-limited or reaction-limited growth of the copper nanoparticles. The plate-like structure of the precursor restricted the diffusion of copper and the autocatalytic reduction limited the probability for secondary nucleation. The combination of a uniform size of precursor particles and the autocatalytic reduction thus offers means to synthesize nanoparticles with well-defined sizes in large amounts. In this way, in situ observations made by electron microscopy provide mechanistic and kinetic insights into the formation of metallic nanoparticles, essential for the rational design of nanomaterials. [less ▲]

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See detailThe effect of insulin on plasma glucose concentrations, expression of hepatic glucose transporters and key gluconeogenic enzymes during the perinatal period in broiler chickens
Franssens, L.; Lesuisse, J.; Wang, Yuan ULg et al

in General and Comparative Endocrinology (2016)

Chickens have blood glucose concentrations that are twofold higher than those observed in mammals. Moreover, the insulin sensitivity seems to decrease with postnatal age in both broiler and layer chickens ... [more ▼]

Chickens have blood glucose concentrations that are twofold higher than those observed in mammals. Moreover, the insulin sensitivity seems to decrease with postnatal age in both broiler and layer chickens. However, little is known about the response of insulin on plasma glucose concentrations and mRNA abundance of hepatic glucose transporters 1, 2, 3, 8, 9 and 12 (GLUT1, 2, 3, 8, 9 and 12) and three regulatory enzymes of the gluconeogenesis, phosphoenolpyruvate carboxykinase 1 and 2 (PCK1 and 2) or fructose-1,6-biphosphatase 1 (FBP1) in chicks during the perinatal period. In the present study, broiler embryos on embryonic day (ED)16, ED18 or newly-hatched broiler chicks were injected intravenously with bovine insulin (1. μg/g body weight (BW)) to examine plasma glucose response and changes in hepatic mRNA abundance of the GLUTs, PCK1 and 2 and FBP1. Results were compared with a non-treated control group and a saline-injected sham group. Plasma glucose levels of insulin-treated ED18 embryos recovered faster from their minimum level than those of insulin-treated ED16 embryos or newly-hatched chicks. In addition, at the minimum plasma glucose level seven hours post-injection (PI), hepatic GLUT2, FBP1 and PCK2 mRNA abundance was decreased in insulin-injected embryos, compared to sham and control groups, being most pronounced when insulin injection occurred on ED16. © 2015 Elsevier Inc. [less ▲]

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See detailAlusiones a la Biblia en las novelas de Gabriel García Márquez
Vanden Berghe, Kristine ULg

in Attala, Daniel; Fabry, Geneviève (Eds.) La Biblia en la literatura hispanoamericana (2016)

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See detailDomain Decomposition Methods for Time-Harmonic Electromagnetic Waves with High Order Whitney Forms
Marsic, Nicolas ULg; Waltz, Caleb; Lee, Jin-Fa et al

in IEEE Transactions on Magnetics (2016), 52(3),

Classically, domain decomposition methods (DDM) for time-harmonic electromagnetic wave propagation problems make use of the standard, low order, Nédélec basis functions. This paper analyzes the ... [more ▼]

Classically, domain decomposition methods (DDM) for time-harmonic electromagnetic wave propagation problems make use of the standard, low order, Nédélec basis functions. This paper analyzes the convergence rate of DDM when higher order finite elements are used for both volume and interface discretizations, in particular when different orders are used in the volume and on the interfaces. [less ▲]

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