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See detailQTL mapping and candidate gene research for the phenolic content of fruits and juices prepared from a cider apple progeny
Verdu, Cindy ULg; Guyot, Sylvain; Childebrand, Nicolas et al

Poster (2012, October)

Polyphenols have favorable antioxidant potential on human health suggesting that their high content in apple is responsible for the beneficial effects of apple consumption. They are also related to the ... [more ▼]

Polyphenols have favorable antioxidant potential on human health suggesting that their high content in apple is responsible for the beneficial effects of apple consumption. They are also related to the quality of ciders as they predominantly account for astringency, bitterness, color and aroma. Five groups of phenolic compounds are described in the apple fruit: flavanols, hydroxycinnamic acids, dihydrochalcones, flavonols and anthocyanins. So far, only two studies have been published on the genetic basis of the phenolic content of dessert apples. As cider apples are commonly described to be much more concentrated in phenolic compounds than dessert varieties, the present study focuses on a cider apple progeny. 32 compounds belonging to the five groups were identified and quantified by HPLC-UV and UHPLC-UV-MS/MS in fruit extracts and juices. 53 QTL controlling phenolic compounds concentration were detected on nine linkage groups (LG) on the integrated linkage map, for all phenolic groups except anthocyanins. QTL clusters located on LG1, 12, 14, 15 and 17 were stable across the year or the studied material. QTL detected on LG1, 14 and 17 for quercitrin, p-coumaroylquinic acid, rutin and chlorogenic acid confirmed results of previous studies. However, no significant QTL was obtained on the LG16 where a major locus for flavanols was previously located. With the two previous studies, this study shows the diversity of genomic regions controlling traits of interest in apple. [less ▲]

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See detailVers une typologie de la réflexivité
Demoulin, Laurent ULg

E-print/Working paper (2012)

Il sera ici question de phénomènes réflexifs qui, au sein d’un texte littéraire, produisent des écarts sensibles et rompent le processus classique de la représentation du réel. Les cas rencontrés sont ... [more ▼]

Il sera ici question de phénomènes réflexifs qui, au sein d’un texte littéraire, produisent des écarts sensibles et rompent le processus classique de la représentation du réel. Les cas rencontrés sont étonnamment divers, tant en ce qui concerne leur structure que les effets produits. C’est pourquoi l’on se propose de les classer en six catégories distinctes : réflexivité autotélique, réflexivité poétique, réflexivité linguistique, réflexivité de l’énonciateur, réflexivité conative et réflexivité référentielle. [less ▲]

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See detailL’affaire du voile en Belgique : la vision médiatique de la femme arabo-musulmane réduite à son voile
Luceno Moreno, Marta ULg

Conference (2012, October)

Cela fait maintenant plus de 20 ans que l’affaire du voile a éclaté en Belgique pour la première fois, contaminée par le débat public ouvert en France après l’exclusion du lycée de Creil de trois jeunes ... [more ▼]

Cela fait maintenant plus de 20 ans que l’affaire du voile a éclaté en Belgique pour la première fois, contaminée par le débat public ouvert en France après l’exclusion du lycée de Creil de trois jeunes qui portaient le hijab. Comme en France, depuis 1989 la question du hijab apparaît et disparaît de la scène médiatique belge par intermittence. À la différence de la France, qui en 2004 se penche sur la question afin de trouver une solution juridique fermant définitivement la controverse, la question du hijab à l’école va rester perpétuellement dans le débat belge par manque de solutions politiques. Toutefois, si dans un premier temps la question du hijab se posait uniquement dans les écoles, à partir de 2004 le débat s'élargit et concerne peu à peu les administrations publiques, les salles de justice ou le Parlement, avant d’occuper la totalité de l’espace public avec la question de la burqa. [less ▲]

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See detailOptimization of POP analysis in small sample amounts.
L'Homme, Benjamin ULg; Focant, Jean-François ULg

Conference (2012, October)

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See detailTHE POTENTIAL USE OF NEAR-INFRARED SPECTROSCOPY FOR THE QUALITY ASSESSMENT OF EGGS AND EGG PRODUCTS
GALIŞ, Anca; Dale, Laura ULg; Boudry, Christelle ULg et al

in Scientific Works. C Series. Veterinary Medicine (2012), LVIII(3), 294-307

In a context of high productivity, eggs’ quality assessment is necessary for enhanced safety and quality assurance towards the consumers and feedback for producers. The quality assessment of eggs and egg ... [more ▼]

In a context of high productivity, eggs’ quality assessment is necessary for enhanced safety and quality assurance towards the consumers and feedback for producers. The quality assessment of eggs and egg products is performed using destructive and time-consuming methods, therefore the use of rapid tools becomes mandatory, especially in the case of a high production rate. Near Infrared (NIR) spectroscopy is considered a very reliable and rapid technique with large use in food industry. At the farm level, NIR spectroscopy technique would be an interesting tool to determine the chemical and physical properties of eggs, eggshell and internal quality and, moreover, this information may help the layer farm manager when a problem occurs in the flock. Its application in the egg industry is aimed at the quality changes in eggs during storage and quality assessment of the egg products, through the compositional analysis. It is possible and in some cases successful the prediction and/or determination of different parameters such as: protein, total lipid and total solids content (for liquid egg products), polyunsaturated fatty acids (for freeze-dried egg yolk), moisture, fat and protein content (for spray-dried whole eggs). In addition, for the white colored shell eggs, the detection of blood and meat spots is also successful. Further studies with NIR and near infrared hyper spectral imaging system (NIR-HSI) are needed in this direction, as the results obtained until now are very promising for the development of a rapid tool for quality assessment of eggs and egg products. [less ▲]

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See detailNEW CHALLENGES FOR 21ST CENTURY COMPETITION AUTHORITIES
Petit, Nicolas ULg

E-print/Working paper (2012)

This paper discusses challenges for competition authorities in the 21st century. Those challenges were identified on the basis of a statistical review of the articles published since January 2011 in five ... [more ▼]

This paper discusses challenges for competition authorities in the 21st century. Those challenges were identified on the basis of a statistical review of the articles published since January 2011 in five major antitrust law journals. The assumption underlying this literature review is that the topics that statistically attract the most the attention from contemporary antitrust scholars are those that will likely constitute the main challenges for 21st century competition authorities. [less ▲]

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See detailIntroduction générale : les organisations régionales dans les relations internationales
Santander, Sébastian ULg

in Santander, Sébastian (Ed.) Relations internationales et régionalisme. Entre dynamiques internes et projections mondiales (2012)

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See detailAllelic heterogeneity of Crooked Tail Syndrome: result of balancing selection?
Sartelet, Arnaud ULg; Klingbeil, Pamela; Franklin, Chris et al

in Animal Genetics (2012), 43(5), 604-607

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See detailCultiver d’autres expertises sur les sciences et les technologies
Thoreau, François ULg

in Revue Nouvelle (2012), 10

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See detailApplication of a new thermo-mechanical model for the study of the nuclear waste disposal in clay rocks
Dizier, A.; François, B.; Collin, Frédéric ULg et al

Poster (2012, October)

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See detailCharacterisation of pregnancy losses after embryo transfer by measuring plasma progesterone and bovine pregnancy-associated glycoprotein-1 concentrations
Breukelman, S. P.; Perényi, Z.; Taverne, M. A. M. et al

in Veterinary Record : Journal of the British Veterinary Association (2012), 194(1), 71-76

The aim of this analysis was to determine whether pregnancy loss (PL) after embryo transfer (ET) in cattle was related to maternal progesterone (P4) concentrations during and shortly after ET, and ... [more ▼]

The aim of this analysis was to determine whether pregnancy loss (PL) after embryo transfer (ET) in cattle was related to maternal progesterone (P4) concentrations during and shortly after ET, and maternal bovine pregnancy-associated glycoprotein-1 (bPAG-1) concentrations in plasma at days 25–35 of gestation. Embryos (n = 260) were produced either in vivo after superovulation (n = 115), or in vitro from oocytes (obtained with ovum pick-up) in co-culture (n = 44) or cultured in a synthetic medium (n = 101). Overall, PL was 56.9% (148) and no significant differences occurred in calving rate among the three embryo production groups. There was no difference in P4 concentrations on days 7–14 of gestation in the three groups, nor between ongoing and interrupted pregnancies. Between days 25 and 35 of pregnancy, bPAG-1 concentrations were unaffected by embryo production, but in cattle that had PL between days 26 and 120, four bPAG-1 profiles could be detected. Between days 25 and 32, bPAG-1 concentrations were influenced by PL, and concentrations were significantly lower in animals in which PL occurred between days 26 and 120 than in those animals that aborted later or calved at term. Early P4 concentrations suggested that maternal luteal factors were not responsible for PL which appeared to be caused by impaired conceptus development (regardless of embryo type) as reflected by low maternal bPAG-1 concentrations prior to embryonic death [less ▲]

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See detailRelations internationales et régionalisme. Entre dynamiques internes et projections mondiales
Santander, Sébastian ULg

Book published by Presses Universitaires de Liège (2012)

Le concept de régionalisme tel qu’appréhendé dans cet ouvrage se réfère à des régions mondiales qui constituent une dimension médiane entre l’échelon étatique et le système mondial. Depuis l’Après-guerre ... [more ▼]

Le concept de régionalisme tel qu’appréhendé dans cet ouvrage se réfère à des régions mondiales qui constituent une dimension médiane entre l’échelon étatique et le système mondial. Depuis l’Après-guerre, le monde a fait face à plusieurs vagues et types de régionalismes. Toutefois, c’est dans le contexte post-bipolaire et de l’accélération de la mondialisation que le régionalisme devient un phénomène à l’échelle mondiale. Aucun continent n’est épargné. Il s’agit d’un phénomène complexe et multiple qui ne se développe pas de manière uniforme. Il est dotés de stratégies collectives, investit par des acteurs tant publics que privés et/ou habités par des institutions et règles communes. Il peut être un simple espace d’action ou se transformer en acteur de la scène internationale. [less ▲]

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See detailGalaxy counterparts of intervening high-z sub-DLAs/DLAs and Mg ii absorbers towards gamma-ray bursts
Schulze, steve; Letawe, Géraldine ULg

in Astronomy and Astrophysics (2012), 546(A20),

We present the first search for galaxy counterparts of intervening high-z (2 < z < 3.6) sub-damped Lyα absorbers (sub-DLAs) and DLAs towards gamma-ray bursts (GRBs). Our final sample comprises five ... [more ▼]

We present the first search for galaxy counterparts of intervening high-z (2 < z < 3.6) sub-damped Lyα absorbers (sub-DLAs) and DLAs towards gamma-ray bursts (GRBs). Our final sample comprises five intervening sub-DLAs and DLAs in four GRB fields. To identify candidate galaxy counterparts of the absorbers we used deep optical- and near-infrared imaging, and low-, mid- and high-resolution spectroscopy acquired with 6-m to 10-m class telescopes, the Hubble and the Spitzer Space Telescopes. Furthermore, we used the spectroscopic information and spectral-energy-distribution fitting techniques to study them in detail. Our main result is the detection and spectroscopic confirmation of the galaxy counterpart of the intervening DLA at z = 3.096 in the field of GRB 070721B (zGRB = 3.6298) as proposed by other authors. We also identify good candidates for the galaxy counterparts of the two strong Mg ii absorbers at z = 0.6915 and 1.4288 towards GRB 050820A (zGRB = 2.615). The properties of the detected DLA galaxy are typical for Lyman-break galaxies (LBGs) at similar redshifts; a young, highly star-forming galaxy that shows evidence for a galactic outflow. This supports thehypothesis that a DLA can be the gaseous halo of an LBG. In addition, we report a redshift coincidence of different objects associated with metal lines in the same field, separated by 130–161 kpc. The high detection rate of three correlated structures on a length scale as short as ~150 kpc in two pairs of lines of sight is intriguing. The absorbers in each of these are most likely not part of the same gravitationally bound structure. They more likely represent groups of galaxies. [less ▲]

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See detailInvariances et ruptures dans le Mercosur
Santander, Sébastian ULg

in Santander, Sébastian (Ed.) Relations internationales et régionalisme. Entre dynamiques internes et projections mondiales (2012)

Cette contribution se penche sur le mode de gouvernance régionale mis en place au travers du Marché commun du sud (Mercosur). En vingt ans d’existence, ce dernier est parvenu à se doter d’une série de ... [more ▼]

Cette contribution se penche sur le mode de gouvernance régionale mis en place au travers du Marché commun du sud (Mercosur). En vingt ans d’existence, ce dernier est parvenu à se doter d’une série de stratégies et d’institutions communes. Il se démarque par sa nature multidimensionnelle et partant se veut une forme de laboratoire des modes de coopération dans des domaines aussi variés que l’économie, le commerce, l’enseignement ou le politique. Toutefois, l’intégration régionale est définie et contrôlée principalement par les États qui la composent et la défense des intérêts nationaux se fait souvent au détriment des engagements communautaires occasionnant d’âpres conflits intrarégionaux. Cette situation révèle les grandes difficultés des instances régionales à résoudre sereinement les différends entre États. Enfin, contrairement aux prédictions, le nationalisme économique et radicalisme politique de cette dernière décennie ne favorisent pas la consolidation de l’intégration et la cohésion régionale. [less ▲]

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See detailLes risques naturels
Ozer, Pierre ULg

in Brunet, Sébastien; Fallon, Catherine; Ozer, Pierre (Eds.) et al Articuler risques, planification d'urgence et gestion de crise (2012)

Un aléa important, ici un séisme, devient une catastrophe naturelle majeure car la vulnérabilité sociétale et technique se conjugue à une très faible capacité de réponse (ou résilience) sur les court ... [more ▼]

Un aléa important, ici un séisme, devient une catastrophe naturelle majeure car la vulnérabilité sociétale et technique se conjugue à une très faible capacité de réponse (ou résilience) sur les court, moyen et long termes face à une crise. Les pages qui suivent décortiquent comment un risque naturel se transforme en catastrophe et les différentes possibilités qui s’offrent à nos sociétés pour réduire tant l’aléa que la vulnérabilité. [less ▲]

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See detailCobalt-mediated radical (co)polymerization of vinyl chloride and vinyl acetate
Piette, Yasmine; Debuigne, Antoine ULg; Jérôme, Christine ULg et al

in Polymer Chemistry (2012), 3(10), 2880-2891

The cobalt mediated radical polymerization (CMRP) of vinyl chloride (VC) in the presence of bis(acetylacetonato)cobalt(II) (Co(acac)2) as a controlling agent is presented for the first time. Using an ... [more ▼]

The cobalt mediated radical polymerization (CMRP) of vinyl chloride (VC) in the presence of bis(acetylacetonato)cobalt(II) (Co(acac)2) as a controlling agent is presented for the first time. Using an alkyl-Co(III) compound (R0–(CH2–CHOAc)<4–Co(acac)2; R0 = (H3C)2(OCH3)C–CH2–C(CH3)(CN)–) as an initiator, the bulk polymerization under non-isotherm conditions is controlled. 1H NMR spectra of the resulting PVC show that the CMRP process does not significantly affect the level of defects compared to a PVC prepared by a conventional free radical polymerization at the same temperature. Using the same alkyl-cobalt(III) compound, the copolymerization of VC and VAc is controlled at 40 °C provided that enough VAc (about 40 mol%) is present in the polymerization medium to moderate the VC polymerization. In line with reactivity ratios, VC is preferentially incorporated in the polymer at the early stages of the polymerization, leading to copolymers with a high VC content at moderate conversions. This is the first report of a CMRP of VC and of the synthesis of well-defined statistical PVC-co-PVAc copolymers by this technique. [less ▲]

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See detailRaymond Lemaire et les débuts de la rénovation urbaine à Bruxelles
Houbart, Claudine ULg

in Urban History Review / Revue d'histoire urbaine (2012), XLI(2), 37-56

Since the end of the 1960s, the archaeologist Raymond Lemaire, professor at the Catholic University of Leuven in Belgium, has contributed to the questioning of the urban renovation methods adopted by the ... [more ▼]

Since the end of the 1960s, the archaeologist Raymond Lemaire, professor at the Catholic University of Leuven in Belgium, has contributed to the questioning of the urban renovation methods adopted by the technical department of the City of Brussels administration for the most ancien districts of the historic centre. Through his role as an expert for the association « Quartier des Arts », he is entrusted with several studies aiming at the adoption of normative plans for some building blocks of high heritage interest. This allows him to put the principles he contributes to define, at the same moment, within international organizations such as ICOMOS or the Council of Europe, to the test of reality. Our contribution aims, through the significant example of the renovation of the « Sainte-Anne district », to throw light on this key moment of Brussels urbanism’s recent history and to take a critical look at Raymond Lemaire’s work. [less ▲]

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See detailSaint Jean Baptiste in disco
Van den Bossche, Benoît ULg; Baert, Barbara; Vanhauwaert, Soetkin

in Liège Museum : Bulletin des Musées de la Ville de Liège (2012), hors série

Ce numéro hors série de "Liège Museum" a été publié à l'occasion du dépôt d'une oeuvre exceptionnelle de Jan van Steffeswert, au Musée Grand Curtius (Liège). Dans un premier chapitre, Barbara Baert et ... [more ▼]

Ce numéro hors série de "Liège Museum" a été publié à l'occasion du dépôt d'une oeuvre exceptionnelle de Jan van Steffeswert, au Musée Grand Curtius (Liège). Dans un premier chapitre, Barbara Baert et Soetkin Vanhauwaert traitent des plateaux de saint Jean Baptiste en général en tant que "phénomène médiéval". Dans un second chapitre, Benoît Van den Bossche se penche plus précisément sur l'oeuvre désormais conservée au musée. [less ▲]

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