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See detailOn the origin of Saturn's polar auroral arcs
Radioti, Aikaterini ULiege; Grodent, Denis ULiege; Gérard, Jean-Claude ULiege et al

Conference (2012, September 27)

Saturn’s main auroral emission similarly to Earth’s is suggested to be associated with the open-closed field line boundary. The polar auroral emissions at Saturn, emissions located poleward of the main ... [more ▼]

Saturn’s main auroral emission similarly to Earth’s is suggested to be associated with the open-closed field line boundary. The polar auroral emissions at Saturn, emissions located poleward of the main emission consist of several arc-like and spotty features. In this study we focus on the arc-like structures observed with the UVIS instrument onboard Cassini and we characterize them into three groups: ‘bending arcs’ arcs whose one end is connected to the main emision, ‘oval aligned arcs’ arcs oriented parallel to the main emission and ‘moving arcs’ arcs which move with time inside the main emission. We study their occurrence rate, location, size as well as their associated expansion or contraction of the main emission. Finally, we compare the auroral arcs at Saturn with those in the terrestrial aurora and we examine their relation to a combination of solar wind parameters such as northward IMF, strong IMF magnitude and high solar wind speed. [less ▲]

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See detailSatellite-induced electron acceleration and related auroras
Hess, Sebastien; Delamere, Peter A.; Bonfond, Bertrand ULiege et al

Conference (2012, September 26)

Satellite-induced auroral emissions are known since decades, in particular those associated with the interaction of Io with the Jovian ionosphere. These emissions range from low frequency radio to UV ... [more ▼]

Satellite-induced auroral emissions are known since decades, in particular those associated with the interaction of Io with the Jovian ionosphere. These emissions range from low frequency radio to UV. Flyby of Io allowed to better understand the power generation close to the satellite, and showed the existence of electron beams accelerated at high latitude. We will present a study of the power transfer between the local interaction at Io and the electron accelerated close to Jupiter. It shows that Alfvén acceleration can explain the morphology and brightness of the Io-related auroraeand the observed accelerated electrons in Io’s wake. The study is extended to the Europa, Ganymede and Enceladus for which auroral emissions have been observed, as well as to Callisto and to the principal inner satellites of Saturn. [less ▲]

Detailed reference viewed: 103 (0 ULiège)
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See detail"Gens" isiaque et intailles. L’envers de la médaille
Veymiers, Richard ULiege; Bricault, Laurent

Conference (2012, September 26)

Detailed reference viewed: 27 (1 ULiège)
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See detailSustainability Performance Management in Large Firms: A Qualitative Research amongst Seven Large Western European Firms
Crutzen, Nathalie ULiege

Conference (2012, September 25)

The aim of this paper is to understand better sustainability performance management in large firms. Based on previous research in this field, this paper reports the results of a qualitative research ... [more ▼]

The aim of this paper is to understand better sustainability performance management in large firms. Based on previous research in this field, this paper reports the results of a qualitative research amongst seven large Western European firms. This research examines why and how these large firms manage their sustainability performance. [less ▲]

Detailed reference viewed: 151 (7 ULiège)
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See detailL’énonciation vidéoludique : analyse du jeu Portal
Barnabé, Fanny ULiege

Conference (2012, September 25)

Cette présentation s'intéresse aux particularités énonciatives du jeu vidéo en mettant à profit les outils développés par la sémiotique visuelle et en prenant appui sur l'analyse d'une oeuvre spécifique ... [more ▼]

Cette présentation s'intéresse aux particularités énonciatives du jeu vidéo en mettant à profit les outils développés par la sémiotique visuelle et en prenant appui sur l'analyse d'une oeuvre spécifique: le jeu "Portal" (Valve Software, 2007). [less ▲]

Detailed reference viewed: 123 (20 ULiège)
See detailLe métier de gestionnaire de recherche
Jeandrain, Denys ULiege

Conference (2012, September 25)

Detailed reference viewed: 32 (10 ULiège)
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See detailLa répétition comme fond ou comme figure : une étude de cas
Lindenberg Lemos, Carolina ULiege

Conference (2012, September 25)

While addressing the matter of the effects of tension produced by repetitive elements in texts, we came across the question of the level of pertinence where such effects would arise. After a brief ... [more ▼]

While addressing the matter of the effects of tension produced by repetitive elements in texts, we came across the question of the level of pertinence where such effects would arise. After a brief investigation of linguistic levels (sounds, words, phrases, sentences) and of semiotic levels (figures, themes, motifs, narrative structures), this approach proved to be of little consequence, seeing as it is possible to find, in each level, examples of repetitions that are relevant and that are irrelevant for the effects under study. Borrowed from the Gestalt theory and the more recent developments in Cognitive Linguistics, the concepts of figure and ground may serve as tools in the research. The level of pertinence is then established through relations, i.e. it is subject to the relative position of the repetitive elements in the whole of the text, as well as in its combination with the other parts of the text. Français : À partir de l'étude des effets de tension produits par les éléments répétitifs dans les textes, la question se pose à propos du niveau de pertinence où ces effets sont ressentis. Cependant, après une brève investigation des niveaux linguistiques (sons, mots, syntagmes, phrases) et des niveaux sémiotiques (figures, thèmes, motifs, structures narratives), la question se trouve dénuée de conséquence, vu qu'il est possible de trouver des répétitions et pertinentes et non pertinentes à chaque niveau. Pour avancer sur ce point, les concepts de fond et figure, empruntés de la théorie de la Gestalt et des nouveaux développements de la Linguistique Cognitive, peuvent servir d'outils. La pertinence de la répétition s’établit alors de manière relationnelle, c'est-à-dire en fonction de la position relative des éléments répétitifs dans le tout et par rapport aux autres parties du texte. [less ▲]

Detailed reference viewed: 65 (3 ULiège)
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See detailThe applications of biodegradable polymers for drug delivery and tissue engineering
Grandfils, Christian ULiege

Conference (2012, September 25)

Detailed reference viewed: 10 (1 ULiège)
Peer Reviewed
See detailTheoretical study of the superatom molecular orbitals of C60-C70
Mignolet, Benoît ULiege

Conference (2012, September 24)

Detailed reference viewed: 25 (4 ULiège)
Peer Reviewed
See detailCulture and hallucinations: a review of the literature
Laroi, Frank ULiege

Conference (2012, September 23)

Detailed reference viewed: 33 (3 ULiège)
Peer Reviewed
See detailSocietal Vulnerability and self-control : do violent values mediate this relation for boys and girls?
Gavray, Claire ULiege; Vettenburg, Nicole; Pauwels, LIeven et al

Conference (2012, September 22)

Detailed reference viewed: 23 (1 ULiège)
See detailNations et nationalismes au 21ème siècle
Jamin, Jérôme ULiege

Conference (2012, September 22)

Detailed reference viewed: 35 (9 ULiège)
See detailHistoire de Liège et ses défis d’aménagement
Frankignoulle, Pierre ULiege

Conference (2012, September 22)

Detailed reference viewed: 38 (7 ULiège)
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See detailInnovative utilization of the Lactoperoxidase System against apple’s postharvest diseases
Bafort, Françoise ULiege; Jijakli, Haissam ULiege; Perraudin, Jean-Paul

Conference (2012, September 21)

Detailed reference viewed: 42 (5 ULiège)
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See detailStrategies to decrease bleeding and biliary fistula
DETRY, Olivier ULiege

Conference (2012, September 21)

Detailed reference viewed: 7 (3 ULiège)
Peer Reviewed
See detailGrave-opening, Impiety and Sacrilege in Epitaphs from Asia Minor: Greek or Roman Concepts?
Delli Pizzi, Aurian ULiege

Conference (2012, September 21)

Detailed reference viewed: 20 (3 ULiège)
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See detailL’analyse métagénomique ciblée au service de la microbiologie des aliments : applications concrètes
Taminiau, Bernard ULiege; Nezer, Carine; Delhalle, Laurent ULiege et al

Conference (2012, September 21)

Detailed reference viewed: 138 (31 ULiège)
See detailDesign of novel copolymers by cobalt-mediated radical polymerization of N-vinyl amides
Debuigne, Antoine ULiege

Conference (2012, September 21)

Detailed reference viewed: 21 (6 ULiège)
Peer Reviewed
See detailPour une critique du concept d’empathie : dimensions épistémologique, clinique, et diagnostique
Englebert, Jérôme ULiege

Conference (2012, September 21)

Le concept d’empathie, s’il est très « à la mode », est rarement défini et encore moins souvent critiqué. Nous proposons de discuter de cette définition et de différencier ce concept de celui de sympathie ... [more ▼]

Le concept d’empathie, s’il est très « à la mode », est rarement défini et encore moins souvent critiqué. Nous proposons de discuter de cette définition et de différencier ce concept de celui de sympathie. Différentes propositions issues de la philosophie (notamment la distinction que M. Foucault fait de l’éthique et la morale ou le concept d’« intercorporéité » de M. Merleau-Ponty et M. Henry) nous permettront de formuler une critique du concept d’empathie. En clinique, on peut distinguer deux « types » d’empathie : celle du clinicien (il s’agit de l’empathie à visée méthodologique - conative) et celle du patient (il s’agit de l’empathie à visée diagnostique - implicite). L’empathie à visée méthodologique serait l’un des fondements de la relation clinique et de toutes les pratiques psychothérapeutiques. Néanmoins ce type de compréhension de l’autre présente des limites que nous discuterons. L’empathie à visée diagnostique est un phénomène clinique qui permet de poser un diagnostic. Le concept sera discuté dans le cas de différents troubles psychopathologiques (schizophrénie, psychopathie principalement). [less ▲]

Detailed reference viewed: 142 (12 ULiège)
See detailCDS and Financial Stability
Sougné, Danielle ULiege; Mattar, Jamal ULiege

Conference (2012, September 20)

Detailed reference viewed: 120 (12 ULiège)
See detailZinc hyperaccumulation: a model to examine metal homeostasis in plants
Hanikenne, Marc ULiege; Nouet, Cécile ULiege; Charlier, Jean-Benoit et al

Conference (2012, September 20)

The plant Arabidopsis halleri exhibits naturally selected metal hypertolerance and extraordinarily high levels of leaf metal accumulation. Metal hyperaccumulator species attract interest as they represent ... [more ▼]

The plant Arabidopsis halleri exhibits naturally selected metal hypertolerance and extraordinarily high levels of leaf metal accumulation. Metal hyperaccumulator species attract interest as they represent an extreme end of natural variation of the metal homeostasis network. This might be useful to reveal the global functioning of metal homeostasis networks and uncover key nodes whose alterations can drastically modify metal accumulation and tolerance. In addition, metal hyperaccumulation is a compelling model to study adaptation. In the last few years, major progress has been achieved in our understanding of the mechanisms underlying metal hyperaccumulation in A. halleri. High rates of metal uptake by roots, root-to-shoot translocation and efficient shoot vacuolar sequestration play central roles in determining hyperaccumulation and hypertolerance. Enhanced functions of several metal transporter-encoding genes result from gene copy number amplification and/or (cis)-regulatory changes. We will describe the function of several transporters in zinc and cadmium hyperaccumulation and hypertolerance, and in the adjustment of nutrient homeostasis in A. halleri. Recent work aiming to determine if selection acted during the evolutionary history of A. halleri on a loci required for metal tolerance and accumulation will be presented. [less ▲]

Detailed reference viewed: 179 (5 ULiège)
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See detailFuran formation upon degradation of carbohydrates in combination with proteins and lipids
Owczarek, Agnieszka; De Meulenaer, Bruno; Scholl, Georges ULiege et al

Conference (2012, September 20)

Detailed reference viewed: 57 (5 ULiège)
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See detailVtriusque sermonis cognatio : la lexicographie bilingue à la fin de l'Antiquité
Rochette, Bruno ULiege

Conference (2012, September 20)

Detailed reference viewed: 79 (1 ULiège)
See detailConditional Asset Allocation: Does Market-Wide Liquidity Matter?
Sougné, Danielle ULiege; Heuchenne, Cédric ULiege; Bazgour, Tarik ULiege

Conference (2012, September 19)

Detailed reference viewed: 63 (15 ULiège)
See detailBimby : un potentiel pour l'urbanisation future en Europe du Nord-Ouest ?
Halleux, Jean-Marie ULiege

Conference (2012, September 18)

Detailed reference viewed: 96 (11 ULiège)
See detailImpact du travail sur la santé.
Hansez, Isabelle ULiege

Conference (2012, September 18)

Detailed reference viewed: 42 (6 ULiège)
Peer Reviewed
See detailA multiscale model of sprouting angiogenesis during fracture healing.
Carlier, Aurélie ULiege; Geris, Liesbet ULiege; Van Oosterwyck, Hans

Conference (2012, September 18)

Detailed reference viewed: 16 (0 ULiège)
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See detailEvaluation of aerosol jet printing (AJP) technology for electronic packaging and interconnect technique
Stoukatch, Serguei ULiege; Seronveaux, Laurent; Laurent, Philippe ULiege et al

Conference (2012, September 18)

We evaluated AJP (Aerosol Jet Printing) deposited silver layer on variety of organic substrates for the most common interconnect techniques for electronic packaging. Specifically, we checked if the AJP ... [more ▼]

We evaluated AJP (Aerosol Jet Printing) deposited silver layer on variety of organic substrates for the most common interconnect techniques for electronic packaging. Specifically, we checked if the AJP silver layer can be electrically interconnected by Au and Al wires bonding technique. We also evaluated suitability of AJP silver layer for surface-mount technology (SMT). We performed electrical characterization of the AJP silver layer. [less ▲]

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See detailA Dynamic Graph Model of Endochondral Ossification can assess the Importance of Biological Actors in Differentiation
Kerkhofs, Johan ULiege; Van Oosterwyck, Hans; Geris, Liesbet ULiege

Conference (2012, September 18)

Cell-based tissue engineering constructs are a promising avenue for the treatment of long bone defects since they provide the primordial ingredients for bone regeneration. The construct provides the ... [more ▼]

Cell-based tissue engineering constructs are a promising avenue for the treatment of long bone defects since they provide the primordial ingredients for bone regeneration. The construct provides the appropriate micro-environment through the carrier, cells to form tissue and chemical cues to kick start the natural bone forming process. Clearly this approach will benefit from a more comprehensive appreciation of how cell populations and the microenvironment provided by the carrier can impact on bone formation in all its complexities. A cornucopia of studies of developmental biology have revealed many biological actors that together form a central network that orchestrates cell behaviour during this process and assures its robustness. This knowledge can be brought to bear specifically in the form of a mathematical model of endochondral ossification, the dominant type of ossification. This model can facilitate the understanding of how growth factors and transcription factors influence cell fate decisions and consequently answer the question whether they can boost bone healing. The model formalism accommodates the qualitative information that is typically available in developmental studies. The network comprises 46 nodes and 161 interactions, shown to be important in endochondral ossification. To simulate network dynamics in discrete time the normalized value of each gene is determined by additive functions where all interactions are assumed to be equally powerful. Furthermore, each species is represented by a fast variable (activity level, as determined by post translation modifications) which is assumed to be in equilibrium with a slow variable (mRNA) at all times. Through a Monte Carlo approach the importance of each node in the stability of chondrocytic phenotypes (proliferating, hypertrophic) is assessed. The hypertrophic state, driven by Runx2, is more stable than the proliferating chondrocyte. This higher stability seems to be conferred by faster reactions that favor the hypertrophic phenotype. In addition, the results point out that some transcription factors are necessary for the induction of a certain phenotype, whereas other transcription factors are required to maintain the phenotype, but are not necessary capable of inducing it. Overall, the model allows the importance of several important factors in the fate decision of mesenchymal cells to be quantitatively assessed based mainly on topological information. [less ▲]

Detailed reference viewed: 51 (1 ULiège)
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See detailPenser par le milieu, cultiver l'équivocation
Despret, Vinciane ULiege

Conference (2012, September 17)

« Gorgias, écrivait Barbara Cassin, montre comment le Poème de Parménide, loin de partir, comme il le prétend, d'un “il y a” de être (esti : es gibt Sein, dit Heidegger), fabrique bien plutôt l'être en le ... [more ▼]

« Gorgias, écrivait Barbara Cassin, montre comment le Poème de Parménide, loin de partir, comme il le prétend, d'un “il y a” de être (esti : es gibt Sein, dit Heidegger), fabrique bien plutôt l'être en le disant, le fait être ; on ne va pas de l'être au dire de l'être, en toute fidélité et adéquation, mais, à l'inverse, l'être est un effet de dire, un produit du poème, la conséquence d'une performance discursive. C'est de là que je suis repartie. » Au cœur de sa réflexion sur la performativité du langage se déploie, chez Cassin, la question de l’efficace créatif de la traduction. Cette question peut être mise en rapport avec la notion développée par l’anthropologue Eduardo Viveiros de Castro sous le terme d’« équivocation ». Traduire, dit-il, c’est présumer qu’une équivocation existe toujours ; c’est communiquer par différences, différences dans sa langue — sous le même terme, quantité de choses peuvent revendiquer répondre de ce terme—, différences dans la langue de l’autre, et différences dans l’opération même de traduction— car les deux équivocités ne sont pas superposables. C’est ce qui conduit Viveiros de Castro à dire que « la comparaison est au service de la traduction », et non l’inverse. On ne traduit pas pour comparer, on compare à la seule fin de réussir à traduire. Et on compare des différences, des équivoques, des homonymes. L’équivocation est, en ce sens, le déploiement des versions. Dans une traduction, explique Cassin, non seulement chaque terme et chaque opération syntaxique de la langue source peuvent recevoir plusieurs sens, mais ils vont être traduits, dans la langue d’arrivée par des termes et des opérateurs syntaxiques qui, eux-mêmes, peuvent en avoir plusieurs. La version cultive ces divergences et ces bifurcations, de manière contrôlée— mais comme on dit que marcher est une manière contrôlée de tomber. Cette pratique de l’équivocation comme volonté de maintien de la contradiction est à l’œuvre dans les travaux les plus divers de la philosophe. Je m’attacherai plus particulièrement à la partie plus littéraire de ceux-ci. Au départ de la nouvelle « Les mots de tous les jours et l’orchidée de la nuit », que je mettrai en rapport avec une analyse de la thématique de la transmission, de l’identité et du deuil proposée par le psychanalyste Jean Allouch, je souhaiterais dégager les effets pragmatiques et féconds d’une traduction assumant et cultivant la possibilité de faire tenir des traductions divergentes et contradictoires d’un même énoncé. [less ▲]

Detailed reference viewed: 171 (16 ULiège)
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See detailLe rôle du pharmacien comme conseiller en allaitement: perception des étudiants en pharmacie
Noirhomme-Renard, Florence ULiege; Osorio Lopez, Rosa Elena; Gosset, Christiane ULiege et al

Conference (2012, September 15)

L’OMS et l’UNICEF recommandent un allaitement maternel exclusif durant les six premiers mois de vie et un allaitement maternel complété jusque deux ans. En Belgique, l’avis du Conseil Supérieur de la ... [more ▼]

L’OMS et l’UNICEF recommandent un allaitement maternel exclusif durant les six premiers mois de vie et un allaitement maternel complété jusque deux ans. En Belgique, l’avis du Conseil Supérieur de la Santé relatif à la vente exclusive en pharmacie des préparations pour nourrissons (2008) souligne « l’importance d’un conseil éclairé de la part d’un universitaire sensibilisé et formé aux problématiques de santé et de nutrition ». Le pharmacien, par le contact fréquent qu’il a avec les jeunes parents, peut donc jouer un rôle dans l’allaitement. <br />Cette étude vise à explorer la perception du rôle du pharmacien comme conseiller en allaitement. <br />Cinquante-trois étudiants de dernière année de pharmacie de l’Université de Liège ont complété un questionnaire incluant des questions relatives à leurs perceptions, leur niveau de connaissances et leur expérience en matière d’allaitement, ainsi qu’une échelle d’attitude vis-à-vis de l’alimentation du nourrisson, l’IIFAS (Iowa Infant Feeding Attitude Scale). <br />92% des étudiants pensent que le pharmacien a un rôle (très) important à jouer comme conseiller en allaitement à différents niveaux (recommandations, prise de médicaments, lait artificiel,…), et 77% estiment qu’il peut influencer les décisions prises par les mères, même si l’officine n’apparaît pas toujours comme un lieu propice pour répondre en toute discrétion aux questions posées (41%). <br />Bien que l’expérience professionnelle et personnelle des étudiants soit faible, leur attitude est plutôt favorable à l’allaitement maternel selon l’échelle IIFAS (score de 61.25 ± 7.17). Toutefois, les étudiants évaluent globalement leur niveau de connaissance comme faible à très faible (insuffisance de lait maternel, stimulation de la lactation, utilisation du tire-lait, conservation du lait maternel, stérilisation des biberons,…). <br />Les futurs pharmaciens estiment avoir un rôle de conseiller important en matière d’allaitement, mais il y aurait lieu de renforcer leur curriculum de formation actuel pour leur permettre de remplir adéquatement, en officine, ce rôle de conseiller auprès des parents. [less ▲]

Detailed reference viewed: 131 (23 ULiège)
See detailImprégnation de polymères par voie CO2 supercritique: suivi in situ par microscopie FTIR
Champeau, Mathilde; Thomassin, Jean-Michel ULiege; Jérôme, Christine ULiege et al

Conference (2012, September 15)

Detailed reference viewed: 46 (9 ULiège)
See detailAn Unpublished Description of Europe by al-Maqrīzī
Bauden, Frédéric ULiege

Conference (2012, September 14)

Detailed reference viewed: 20 (1 ULiège)
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See detailError distribution function for parametrically truncated and censored data
Laurent, Géraldine ULiege; Heuchenne, Cédric ULiege

Conference (2012, September 14)

Detailed reference viewed: 27 (5 ULiège)
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See detailStatus of on-board radiocommunication system of OUFTI-1 nanosatellite as of mid-2012: design, implementation, and tests
Werner, Xavier ULiege; Crosset, Nicolas ULiege; Broun, Valéry et al

Conference (2012, September 14)

We describe the space-segment component of the radiocommunication system of the OUFTI-1 nanosatellite system, providing D-STAR digital voice & data communication, AX.25 telecommand & telemetry, and OOK ... [more ▼]

We describe the space-segment component of the radiocommunication system of the OUFTI-1 nanosatellite system, providing D-STAR digital voice & data communication, AX.25 telecommand & telemetry, and OOK beacon transmissions. [less ▲]

Detailed reference viewed: 55 (6 ULiège)
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See detailCompensating for Doppler effect in satellite D-STAR radiocommunications: On-board and on-the-ground solutions
Pisane, Jonathan ULiege; Werner, Xavier ULiege; Denis, Amandine ULiege et al

Conference (2012, September 14)

A major issue in the design of a D-STAR radiocommunication system for a satellite is the issue of Doppler shift compensation. We describe the various constraints we faced, and the solutions we implemented ... [more ▼]

A major issue in the design of a D-STAR radiocommunication system for a satellite is the issue of Doppler shift compensation. We describe the various constraints we faced, and the solutions we implemented on-board and on the ground for the OUFTI-1 nanosatellite system. [less ▲]

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See detailPassive radar testbed and preliminary experiments in recognition of non-cooperative aircraft intruding into controlled airspace
Pisane, Jonathan ULiege; Azarian, Sylvain; Lesturgie, Marc et al

Conference (2012, September 14)

We consider the automatic classification of aircraft observed with a passive radar, thus using illuminators of opportunity. We deployed a testbed and developed classification algorithms. Preliminary tests ... [more ▼]

We consider the automatic classification of aircraft observed with a passive radar, thus using illuminators of opportunity. We deployed a testbed and developed classification algorithms. Preliminary tests show a correct recognition rate of 72%. [less ▲]

Detailed reference viewed: 32 (3 ULiège)
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See detailContribution of Robotic Surgery to Gynecologic Oncology
GOFFIN, Frédéric ULiege

Conference (2012, September 14)

Detailed reference viewed: 8 (0 ULiège)
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See detailAdvances in ORC expander design
Lemort, Vincent ULiege; Quoilin, Sylvain ULiege

Conference (2012, September 13)

Detailed reference viewed: 377 (13 ULiège)
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See detailDynamic modeling and control strategies for Organic Rankine Cycle systems
Quoilin, Sylvain ULiege; Lemort, Vincent ULiege

Conference (2012, September 13)

Control and optimization are major issues in ORC systems applied to waste heat sources. This talk provides an overview of the current state of the art and of the main areas of R&D in that topic, including ... [more ▼]

Control and optimization are major issues in ORC systems applied to waste heat sources. This talk provides an overview of the current state of the art and of the main areas of R&D in that topic, including: - Steady-state and dynamic modeling of ORC cycles (simulation platforms, modeling paradigms, numerical issues) - Optimization of the working conditions for a given heat source and heat sink, and in particular of the evaporating temperature - Optimal start-up and shut-down strategies (grid synchronization, pressure overshoot, ...) - Control of the cycle under transient heat source conditions - Traditional and advanced controllers (PID, Model predictive control) The different adjustable working conditions (condensing/evaporating temperature, superheating, subcooling, working fluid flow rate) are listed with regard to the available degrees of freedom (pump/expander speed, secondary fluid flow rates and temperatures) and their optimal values are derived, depending on the target application. [less ▲]

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See detailImportant differences between multiple offenders ans non-multiple offenders
Gavray, Claire ULiege

Conference (2012, September 13)

importance to distinguish between young people who have a 'single- light' experience' of crime and those who do repeat illegal behaviours over time. The profile of those young people is quite different ... [more ▼]

importance to distinguish between young people who have a 'single- light' experience' of crime and those who do repeat illegal behaviours over time. The profile of those young people is quite different and the necessary prevention is specific in both cases [less ▲]

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See detailTerritorial Politics in inter and intra-party competition. Insights from Belgium
Reuchamps, Min ULiege; Dodeigne, Jérémy ULiege; Sinardet, Dave et al

Conference (2012, September 13)

In territorial politics, political parties are key actors – be it state-wide or regionalist parties – for constitutional reforms underlying regionalisation or federalisation processes. From the agenda ... [more ▼]

In territorial politics, political parties are key actors – be it state-wide or regionalist parties – for constitutional reforms underlying regionalisation or federalisation processes. From the agenda-setting to the implementation of the reforms, they aggregate and catalyse territorial/national interest in order (not) to enable institutional reforms. In most representative democracies under such regionalist pressures – such as the Belgian case we explore, it is however individual MPs that ultimately vote the constitutional reforms. Of course, party discipline strongly constrains MPs’ freedom and frames parliamentary behaviour. The literature thus often explores territorial politics from a macro-perspective – political parties’ positions – rather than at a micro level – individual MPs. Yet, exploring MPs’ views on constitutional reforms bring interesting perspectives on intra-party dynamics complementing inter-party approaches. What explains MPs’ preferences on constitutional reforms? To explore this question, we surveyed every representative of Belgium’s six legislative assemblies with a standardized questionnaire (Summer 2011). We hypothesize that ethno-linguistic identity and party affiliation are strong variables explaining MPs’ preferences but that candidates’ attributes – be it (multi-level) former political experience, gender, political generation, or district origins – should also be taken into account. Based on the Belgian case study, this research will help us apprehend the rationale behind political elites’ attitudes negotiating the new boundaries of the state and above all shed light on territorial politics in Europe. [less ▲]

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See detail"Echos en série : formes et enjeux de la réplique dans The Wire"
Belloi, Livio ULiege

Conference (2012, September 13)

Detailed reference viewed: 22 (2 ULiège)
See detailLA gestion collective des semences
Hecquet, Corentin ULiege

Conference (2012, September 13)

Detailed reference viewed: 38 (3 ULiège)
See detailEffects of cellular morphology on electricalconductivity of carbon nanotubes containing nanocomposites foams
Tran, Minh Phuong ULiege; Detrembleur, Christophe ULiege; Thomassin, Jean-Michel ULiege et al

Conference (2012, September 13)

In the last few years, polymer carbon nanotubes (CNTs) nanocomposites foams have received increasing attention due to their potential applications in electrostatic dissipation (ESD) and in electromagnetic ... [more ▼]

In the last few years, polymer carbon nanotubes (CNTs) nanocomposites foams have received increasing attention due to their potential applications in electrostatic dissipation (ESD) and in electromagnetic interferences (EMI) shielding. To be efficient, these foams must exhibit appropriate electrical conductivity (> 1 S/m) and dielectric constant. A good understanding of the influence of the foam structural parameters on the electrical properties of the foam will ultimately enable the optimum design of these materials for the targeted applications. A wide range of poly(methyl methacrylate) (PMMA)/CNTs nanocomposites foams were synthesized using the supercritical CO2 technology. Different foaming parameters, such as the temperature, impregnation pressure, time and rate of depressurization were varied to modify the foam structure. The amount of carbon nanotubes in PMMA plays the most important role in increasing the electrical conductivity. Nanocomposite foams show higher electrical conductivity than non-foamed nanocomposites at the same volume content of CNTs. Effects of foam morphology such as cell-density; pore size, volume expansion, and cell-wall thickness on electrical conductivity were comprehensively assessed. High electrical conductivity can be achieved with nanocomposite foams that have high volume expansion, small pore size, high cell density, and thin cell-walls [less ▲]

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See detailInfluence of the protéin context on the propensity of polyglutamine tracts to trigger protein aggregation into amyloid fibrils
Huynen, Céline ULiege

Conference (2012, September 13)

Nine neurodegenerative diseases, referred to as polyglutamine diseases, are associated with nine proteins containing an expanded polyglutamine (polyQ) tract. PolyQ tracts are encoded by a repetition of ... [more ▼]

Nine neurodegenerative diseases, referred to as polyglutamine diseases, are associated with nine proteins containing an expanded polyglutamine (polyQ) tract. PolyQ tracts are encoded by a repetition of the CAG codon in the corresponding genes, and are present in proteins of healthy people. They are however pathogenic when their length, due to mutations, becomes higher than a threshold generally comprised between 35 and 45Q. Such pathological tracts trigger the aggregation of the proteins into amyloid-like aggregates that could play an important role in the disease. It is therefore necessary to investigate at a molecular level the aggregation process of polyQ proteins. Since proteins associated with polyQ diseases are generally large and relatively insoluble, they are difficult to produce and handle experimentally. We have therefore decided to study the aggregation properties of polyQ proteins by designing and characterizing model proteins made of a well-characterized host protein, the β-lactamase BlaP, and polyQ tracts of different lengths (23 to 79Q) inserted either at positions 197 or 216 of BlaP. The aggregation behaviour of BlaP chimeras recapitulate those of proteins associated with polyQ diseases. We indeed observed that there is a minimal number of glutamines (i.e. a threshold) required for the chimeras’ aggregation into amyloid-like fibrils and that the kinetics of aggregation are faster with longer glutamine repeats. Most importantly, the value of the threshold for amyloid-like fibril formation seems to critically depend on the structural integrity of BlaP and thus on the constraints applied to the polyQ tract. In the present work, we investigate more deeply the role of the protein context and of oligomers on the aggregation process of BlaP chimeras. This study is mainly based on the use of two techniques: the quartz crystal microbalance with dissipation (QCM-D) in combination with atomic force microscopy (AFM), and the dynamic light scattering (DLS). QCM-D studies indicate that, under native condition, there is a minimal number of glutamines required for the elongation of BlaP197(Gln)79 fibrils by BlaP chimeras containing a polyQ tract in position 197. This threshold is lower than that observed for the aggregation assays monitored in solution in the absence of seed; it corresponds however to the threshold for fibril formation observed under denaturing conditions. These observations suggest that the conformation of BlaP is the limiting step for amyloid fibril formation by interfering with the nucleation step. BlaP chimeras containing 55Q or more in position 216 of BlaP also elongate BlaP197(Gln)79 fibrils. Interestingly this rate of cross-elongation is faster than the elongation rate observed with BlaP197(Gln)55 and BlaP197(Gln)79. This observation demonstrates that the protein environment of the polyQ tract influences its propensity to form amyloid fibrils. Finally, preliminary DLS experiments indicate that oligomers formed by BlaP197(Gln)79 under native condition are on-pathway of amyloid fibril formation and could act as aggregation nuclei. [less ▲]

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See detailAutofill remote storage form on the OPAC holdings page
Renaville, François ULiege; Danhieux, Sylvain ULiege

Conference (2012, September 13)

A big part of our library collections are located in a remote storage which is about 12 km from its managing library. Until recently, the only way to request a volume was by filling in a paper form at a ... [more ▼]

A big part of our library collections are located in a remote storage which is about 12 km from its managing library. Until recently, the only way to request a volume was by filling in a paper form at a library desk. The form was then faxed to the remote storage whose staff treated the request and delivered the ordered item to the pickup library. This workflow forced patrons to go to the library desk, no remote request was allowed. In order to modernize the workflow, we wanted to implement Aleph remote storage functionalities. We found it not so easy to set up and were faced moreover with two additional problems: we wanted to allow patrons to request (1) some items which are not in a remote storage and (2) serial issues from older collections which had never been itemized and so could not be requested through the traditional Aleph functionalities. Therefore, we set up a PHP form that any registered patron can call from the OPAC holding page (item-global) and that automatically contains patron information, bibliographic information and item details (location, call number, description, status, barcode). The patron just needs to select the appropriate pickup library before the form is sent by e-mail to the remote storage. That form can be used for any location (not necessarily for volumes located in a remote storage) and for serial holdings with few itemized volumes (a Z30 is not required to make a request). [less ▲]

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See detailSedimentary development and correlation of Mid-Late Devonian fore-reef deposits from Central Europe
Pas, Damien ULiege; Da Silva, Anne-Christine ULiege; Cornet, Pierre et al

Conference (2012, September 12)

INTRODUCTION: Despite the interest for the reconstruction of environmental changes over a long period of time, long-term successions have been relatively poorly investigated using a mutli-disciplinary ... [more ▼]

INTRODUCTION: Despite the interest for the reconstruction of environmental changes over a long period of time, long-term successions have been relatively poorly investigated using a mutli-disciplinary approach compared to short-term intervals such as Kačák, Taghanic, punctata, Kellwasser and Hangenberg events. Recently, BOULVAIN et al. (2010) compared two km-thick Eifelian-Frasnian sections from Belgium and Czeck Republic using magnetic susceptibility (SM) technique. Regardless the very different background of palaeogeography, sedimentary rate, facies and local sea-level changes history, a remarkable similarity in the MS trends can be observed between these two sections. These similarities brought questions on the nature of the long-term forcing parameters that were active at the inter-regional scale. In order to get a better understanding of the factors responsible of the inter-regional forcing, a detailed records of microfacies observations, MS measurements, selected trace and major elemental concentrations and conodonts biostratigraphy have been performed on two Middle to Upper Devonian successions from Germany (Sauerland, Burgberg) and Austria (Carnics Alps, Freikofel). CONODONT BIOSTRATIGRAPHY: In the Burgberg section, conodont biostratigraphy allowed us to confirm that the studied section extend from the Middle Givetian to the Lower Carboniferous. In the Freikofel section, it allowed to precisely identify the Eifelian-Givetian and the Frasnian-Famennian boundaries. SEDIMENTOLOGY: The field and microfacies observations allowed us to reconstruct the sedimentary environment and to highlight several major variations of this environment. In the Middle Devonian, both sections are mainly characterized by fore-reef sediments. In the Burgberg section, those fore-reef sediments, mainly correspond to bioclastic grainstone and rudstone related to gravity flow deposits derived from the shallow-water area. In the Freikofel section, the fore-reef area is dominated by breccia sediments suggesting a strong debris flow influence. Through the Upper Devonian the sedimentary setting evolves to an off-reef pelagic environment in both sections and even a basinal setting in the Burgberg section. Sediments are then dominated by thin-bedded and nodular limestone. In this Upper Devonian part, locally both sections, debris coming from the shallow-water area are still observed (suggestion: Even in the Upper Devonian, occasionally debris deriving from shallow water areas has been observed in both sections. MAGNETIC SUSCEPTIBILITY AND GEOCHEMISTRY: The mean MS values for the Burgberg and Freikofel sections are respectively 1,88x10-8m³/kg and 7,72x10-9m³/kg. Compared to the MSmarine standard of 5.5x10-8m³/kg defined by ELLWOOD et al. (2011) on the basis of ~11,000 marine rocks samples, our values are low, mostly in the Freikofel section, which could indicate a low terrestrial influx seaward during the Middle and Upper Devonian. Regarding the magnetic susceptibility curves from these two sections, several large-scaled trends can be highlighted. The evolution curves of some selected clastic input proxies such as Zr, Si, Al, Ti, Sr display similar large-scaled trends. This indicates that clastic input proxies and MS are inherently linked and MS techniques can thus be used here as a proxi for changes in source or amount or type of weathering (RIQUIER et al. 2010). Most of the long-term MS variations occurring in both sections are interpreted as being related to second order eustatic variations (T-R Cycles). Through this multi-disciplinary investigation, we would like to get a better idea on the causes of long-term trends in MS variations and to document the sedimentary changes in response to these long-term variations. Further aim is to develop the application of MS techniques as a correlation tools. BOULVAIN, F., DA SILVA, A-C., MABILLE, C., HLADIL, J., GERSL, M., KOPTIKOVA, L., SCHONABL P., 2010. Magnetic susceptibility correlation of km-thick Eifelian-Frasnian sections (Ardennes and Moravia). Geologica Belgica, 13/4, 309-318. ELLWOOD, B.B., ALGEO, T.J., EL HASSANI, A., TOMKIN, J.H., ROWE, H.D., 2011. Defining the timing and duration of Kačák Interval within the Eifelian/Givetian boundary GSSP, Mech Irdane, Morocco, using geochemical and magnetic susceptibility patterns. Palaeogeography, Palaeoclimatology, Palaeoecology, 304, 74-84. RIQUIER, L., AVERBUCH, O., DEVLEESCHOUWER, X., TRIBOVILLARD, N., 2010. Diagenetic versus detrital origin of the magnetic susceptibility variations in some carbonate Frasnian-Famennian boundary sections from Northern Africa and Western Europe: implications for palaeoenvironmental reconstructions. International Journal of Earth Sciences, 99, 57-73. [less ▲]

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See detailL'emploi des jeunes d'origine étrangère peu qualifiés (joepq) en Belgique. Phase exploratoire
Ould Kherroubi, Mehdi ULiege

Conference (2012, September 12)

Ce document s'inscrit dans le cadre de la Chaire diversité et innovations sociales qui est un partenariat entre HEC-Liège (EGiD) et l’Université d’Hasselt (SEIN). Mobistar, GDF-Suez Electrabel et B ... [more ▼]

Ce document s'inscrit dans le cadre de la Chaire diversité et innovations sociales qui est un partenariat entre HEC-Liège (EGiD) et l’Université d’Hasselt (SEIN). Mobistar, GDF-Suez Electrabel et B-Holding (la Société Nationale des Chemins de fer Belge- SNCB) collaborent à cette recherche. Ma recherche se focalise sur l'emploi des jeunes d’origine étrangère peu qualifiés (JOEPQ) en Belgique abordé sous l’angle de la gestion. Ce document est le fruit d'entretiens exploratoires menés auprès de quatre agents d'insertion qui travaillent directement avec mon public-cible à Bruxelles. [less ▲]

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See detaileffective use of dolomitic material in Mbuji-Mayi region
Matamba Jibikila, Raphaël ULiege

Conference (2012, September 12)

En vue d'une utilisation efficace de matériaux dolomitiques du supergroupe de Mbuji-Mayi (RD Congo), une caractérisation méticuleuse de chaque faciès de matériau s'impose. Cela permettrait une bonne ... [more ▼]

En vue d'une utilisation efficace de matériaux dolomitiques du supergroupe de Mbuji-Mayi (RD Congo), une caractérisation méticuleuse de chaque faciès de matériau s'impose. Cela permettrait une bonne gestion de ressources en définissant pour chaque faciès, des applications optimales et durables. [less ▲]

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See detailEnfance, culture, morale. Autour de Sartre lecteur et relecteur d’Alain
Cormann, Grégory ULiege

Conference (2012, September 11)

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See detailSome properties of abelian return words (long abstract)
Rigo, Michel ULiege; Salimov, Pavel ULiege; Vandomme, Elise ULiege

Conference (2012, September 11)

We investigate some properties of abelian return words as recently introduced by Puzynina and Zamboni. In particular, we obtain a characterization of Sturmian words with non-null intercept in terms of the ... [more ▼]

We investigate some properties of abelian return words as recently introduced by Puzynina and Zamboni. In particular, we obtain a characterization of Sturmian words with non-null intercept in terms of the finiteness of the set of abelian return words to all prefixes. We describe this set of abelian returns for the Fibonacci word but also for the 2-automatic Thue–Morse word. We also investigate the relationship existing between abelian complexity and finiteness of the set of abelian returns to all prefixes. We end this paper by considering the notion of abelian derived sequence. It turns out that, for the Thue–Morse word, the set of abelian derived sequences is infinite. [less ▲]

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See detailOn the concrete complexity of the successor function
Berthé, Valérie; Frougny, Christiane; Rigo, Michel ULiege et al

Conference (2012, September 11)

We consider two kinds of questions about the successor function. The first one is concerned with the estimation of the length of the carry propagation when applying the successor map on the first n ... [more ▼]

We consider two kinds of questions about the successor function. The first one is concerned with the estimation of the length of the carry propagation when applying the successor map on the first n integers (or more generally on the first n elements in a given language). This leads to the notion of amortized (or average) carry propagation when applying the successor function. The second question is a computational issue: estimating the number of operations (in classical terms of Turing machines complexity) required to compute the representations of the first n integers from the first one by applying n times the successor function. This leads to the notion of (amortized) complexity, i.e., the average amount of computations required to obtain the successor of an element. [less ▲]

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See detailFuture projections of the Greenland ice sheet surface mass balance simulated by the regional climate model MAR forced by three CMIP5 global models.
Fettweis, Xavier ULiege; Franco, Bruno ULiege; Lang, Charlotte ULiege et al

Conference (2012, September 11)

As part of the ICE2SEA project, the regional climate model MAR was forced by the global models HadCM3 and ECHAM5 for making future projections of the Greenland Ice Sheet (GrIS) Surface Mass Balance (SMB ... [more ▼]

As part of the ICE2SEA project, the regional climate model MAR was forced by the global models HadCM3 and ECHAM5 for making future projections of the Greenland Ice Sheet (GrIS) Surface Mass Balance (SMB) over 1980-2099 at a resolution of 25km. However, the comparison with MAR forced by the ERA-40 reanalysis over 1980-1999 shows that MAR forced by these GCMs is not able to represent reliably the current SMB due to biases in the general circulation and in the free atmosphere summer temperature modelled by these GCMs around the GrIS. That is why, we present here first results of MAR forced by the next generation of GCMs from the CMIP5 data base (CanESM2, NorESM1 and MIROC5 here). The comparison with the ERA-INTERIM forced MAR simulations over current climate is a lot of better, which increases the reliability and the interest of these new MAR projections. In addition, the new scenarios (RCP 2.6, 4.5, 6.0 and 8.5) of the next IPCC Assessment Report (AR5) are used here. These new simulations show notably that the response of SMB to rising temperature is not a linear function of the temperature anomalies due to the positive albedo feedback which enhances the surface melt. For 2100, in case of extreme rising temperature (RCP 8.5 scenario), MAR simulates a surface GrIS mass loss corresponding to a cumulated sea level rise (SLR) of about 15 cm since 2000! Mainly the changes in SMB and in surface energy balance will be discussed here and estimations of the GrIS surface melt contribution to the SLR using all the CMIP5 outputs will be given. [less ▲]

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See detailSeveral years El Niño forecast using a wavelet-based mode decomposition
Nicolay, Samuel ULiege; Fettweis, Xavier ULiege

Conference (2012, September 10)

Detailed reference viewed: 41 (8 ULiège)
See detailDiagnosis of parathyroid carcinoma: potential role of PTH laboratory assays
CAVALIER, Etienne ULiege

Conference (2012, September 08)

Detailed reference viewed: 15 (1 ULiège)
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See detailGénitif -aes/-es pour -ae : hellénisme ou vulgarisme ?
Rochette, Bruno ULiege

Conference (2012, September 07)

The origin of the genitive –aes/-es for –ae is difficult to establish. The most common opinion about this type of genitive, which occurs in epigraphical and, in more reduced proportions, in papyrological ... [more ▼]

The origin of the genitive –aes/-es for –ae is difficult to establish. The most common opinion about this type of genitive, which occurs in epigraphical and, in more reduced proportions, in papyrological sources (not, insofar as I know, in literary texts) especially for women’s personal names (but also in common nouns), is that it comes from the Greek. Beside the influence of Greek, several theories can be found about the origin of this particularity, commonly attested even in Republican Latin names. Indeed, in vulgar Latin, the –es ending genitive (used as dative as well) was frequently used from the 1st c. B.C. This phenomenon can be observed in Rome, in Italy and in the provinces (not only in western provinces, but also in eastern provinces, where the influence of Greek could have been stronger). In the epigraphical texts, this type of genitive occurs frequently in Greek personal names among some social groups (low classes). The origin of the dedicants (native, Greek or Oriental, i.e. Greek-speaking persons) must be taken into account and, for the common nouns, the contextualization is very important. I’ll focus on the inscriptions from Asia Minor and compare them with other regions as Italia X and Pannonia to see : 1° whether –aes/-es are two distinctive phenomena or two variants of the same phenomenon and 2° if this particularity has been used as a typical feature to point out the Greek origin of the person(s) mentioned in the inscription or the bilingual character of the community which has produced the text. [less ▲]

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See detailImages et concepts dans le métaphorologie de Hans Blumenberg
Zincq, Aurélien ULiege

Conference (2012, September 06)

Detailed reference viewed: 67 (0 ULiège)
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See detailIl latino dell'Alcestis Barcinonensis
Macedo, Gabriel ULiege

Conference (2012, September 06)

This paper presents a linguistic description of the Barcelona Alcestis, an anonymous Latin poem contained in a fourth century papyrus codex. Traces of Vulgar Latin are identified in the orthography, which ... [more ▼]

This paper presents a linguistic description of the Barcelona Alcestis, an anonymous Latin poem contained in a fourth century papyrus codex. Traces of Vulgar Latin are identified in the orthography, which reveals the language as it was heard, understood and spoken by the copyist, whereas the syntactic features of the text can inform us about the language used by the author in the time of the composition. [less ▲]

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See detailHeur(t)s et malheurs dans le contre-transfert
Naziri, Despina ULiege

Conference (2012, September 06)

Detailed reference viewed: 33 (1 ULiège)
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See detailFunctional connectivity changes in hypnotic state measured by fMRI
Demertzi, Athina ULiege; Soddu, Andrea ULiege; VANHAUDENHUYSE, Audrey ULiege et al

Conference (2012, September 06)

Detailed reference viewed: 17 (3 ULiège)
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See detailDistribution and identification of molecular interactions between tomato roots and bacterial biofilms
Debois, Delphine ULiege; Jourdan, Emmanuel ULiege; Ongena, Marc ULiege et al

Conference (2012, September 05)

Some non pathogenic microorganisms evolving in the root micro-environment can trigger a positive effect on plant, increasing host defense against disease or/and directly inhibiting growth of pathogen in ... [more ▼]

Some non pathogenic microorganisms evolving in the root micro-environment can trigger a positive effect on plant, increasing host defense against disease or/and directly inhibiting growth of pathogen in soil (1). To initiate both phenomena leading to biocontrol activity, microorganisms use plant exudates to grow on roots and to produce in-situ active compounds. In Bacilli, cyclic lipopeptides of the surfactin, iturin and fengycin families represent important antibiotics involved in biocontrol (2). Recent studies in microbiology allowed a better understanding of plant microorganism interactions but few has been done at the molecular level. In this study, MALDI MS imaging has been used to study the nature of the secreted lipopeptide molecules, their relative quantity and their distribution in the root’s environment. Disinfected tomato seeds were first germinated at 28°C in sterile conditions for germination. Seedlings were then placed in Petri dish on ITO glass slide recovered with a thin layer of plant nutritive solution (Hoagland) containing 1,75% of agar and treated with freshly-grown cells of Bacillus amyloliquefaciens S499. Petri dishes were finally incubated vertically in phytotron at 28°C with a 16h photoperiod. Different root age / time of incubation were studied: 13 / 3; 13 / 7; 21 / 14 and 39 / 32. Control tomato root (without bacterial treatment) of the same ages were also analyzed (13 / 0; 21 / 0 and 42 / 0. For MALDI imaging experiments, the ITO slide was removed from the agar and dried in a dessiccator under vacuum. The matrix solution (α-cyano-hydroxycinnamic acid, 5mg/mL in ACN/0.2% TFA 70/30) was applied with an ImagePrep automated sprayer (Bruker Daltonics). An UltraFlex II TOF/TOF and a Solarix FT-ICR mass spectrometers were used to record molecular cartographies. The average mass spectra recorded around the tomato root (2-3 mm on both sides of the root) showed that lipopeptides were major compounds detected on the agar. The relative intensity of lipopeptides families varied with respect to the age of the root/biofilm system. In the 13/3 system, 3 homologues of surfactins were essentially detected (C13, C14 and C15), with very few iturins and fengycins. Their localizations were identical, whatever the considered homologue. Then the production of iturin and fengycin families increases in older systems (13/7 and 21/14) and a novel homologue of surfactin is detected (C12). Some variations in localizations within families may be observed (around the root or at the close vicinity of it in function of the considered homologue or alkali adduct). Then for the oldest system we studied, iturins and fengycins are not detected anymore and the localization of surfactins is less precise. In the 39/32 system, we also detected unknown compounds at 986.6, 1000.6, 1014.7 and 1028.7 m/z. The mass range of these compounds allied to the mass difference between two consecutive ion peaks let us think that these unknown compounds could be a new lipopeptide family. Investigations are in progress to identify these new secondary metabolites of Bacillus amyloliquefaciens. [less ▲]

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See detailThe sensitivity of optimal rail‐road terminal locations to intermodal freight costs variations
Carreira, Joana; Santos, Bruno; Limbourg, Sabine ULiege

Conference (2012, September 05)

In the last decades, the market of goods became globalized, increasing international trade relations and the demand for long distance transportation. As a consequence of the larger distances traveled and ... [more ▼]

In the last decades, the market of goods became globalized, increasing international trade relations and the demand for long distance transportation. As a consequence of the larger distances traveled and of the containerization of goods, maritime transportation became more efficient and reliable. In the hinterland, intermodal (rail-road) freight transportation emerged as a competitive alternative to truck-only transportation. In one of its possible meanings, intermodal freight transportation is the multimodal chain of container-transportation services [1] that, e.g., brings containers from (or to) the seaport by barge or rail to (or from) an intermodal terminal in the hinterland from where they are shipped by truck to their final destination (or origin). This study focus on inland intermodal freight transport, in particular, on the rail–truck transport of cargo containers in Belgium. This European country has a long rail system and in the last years has readapted this system in order to handle with containerized cargo. Since 2004, some rail-road terminals have been built and new intermodal services between the seaports of Belgium have been established. In addition, with the aim of promoting the modal share of intermodal rail-road transport, the federal government of Belgium started subsidizing part of the rail transport cost and of the transshipments costs at the rail-road terminals. With these investments the intermodal freight flows in Belgium have increased. [less ▲]

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See detailQuando l'autocrate interferisce con i grammatici, ovvero su Adriano e la scuola
Scappaticcio, Maria Chiara ULiege

Conference (2012, September 05)

Detailed reference viewed: 29 (4 ULiège)
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See detailSustainability, Strategy and Management Control: A Review of the Literature
Crutzen, Nathalie ULiege; Herzig, Christian

Conference (2012, September 04)

The purpose of this research is to explore the emerging body of literature on the relationship between sustainability, strategy and management control. Our way to organise and present the literature aims ... [more ▼]

The purpose of this research is to explore the emerging body of literature on the relationship between sustainability, strategy and management control. Our way to organise and present the literature aims to both structure the state of our knowledge in this area and stimulate others to contribute to a shared and better understanding of this field of research. Previous research has underlined that (sustainability) management control systems play a key role in shaping processes of (sustainability/CSR) strategy formulation and implementation (e.g. Simons, 1990; Epstein and Wisner, 2005; Gond et al., 2011). While the relationship between management control systems and strategy has widely been investigated in the traditional accounting and control literature (e.g. Simons, 1990; Langfield-Smith, 1997; Ferreira and Otley, 2009; Tucker et al., 2009), this is much less frequent in the context of research related to the concept of sustainability. Indeed, until recently social and environmental accounting research has predominantly paid attention to external reporting and accountability (e.g. Albelda, 2011; Gray, 2002) or the link between corporate social responsibility/environmental management and economic performance (e.g. Henri and Journeault, 2010). Conscious of this situation, several researchers have stressed the need for research on the interrelation between sustainability, strategy and control (Parker, 2000; Chung and Parker, 2008; Durden, 2008) and a growing body of literature has emerged over the last years. We hope that in reviewing and reflecting on how this emerging body of literature is organised we can contribute to a better understanding of our current knowledge and to the development of new knowledge in the future. The paper thus also aims to suggest future directions for research. Our interest in reviewing and codifying the literature is also driven by a practical need to further embed sustainability into organisations. Until today, it seems that many organisations are still confronted with difficulties in “operationalising” sustainability and translating their strategic aspirations for sustainability into practice in the midst of many other business pressures (Epstein and Roy, 2001; Schaltegger and Wagner, 2006; Taplin et al., 2006; CIMA and Accenture, 2011). [less ▲]

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See detailFactors influencing wild boar presence in agricultural landscape: a habitat suitability modelling approach
Morelle, Kevin ULiege; Lejeune, Philippe ULiege

Conference (2012, September 04)

The wild boar (Sus scrofa L.) population has increased in most parts of Europe during the last three decades. As a consequence, population distribution ranges have shifted to more agricultural areas ... [more ▼]

The wild boar (Sus scrofa L.) population has increased in most parts of Europe during the last three decades. As a consequence, population distribution ranges have shifted to more agricultural areas. These newly colonized areas are characterized by highly fragmented forest cover and a preponderance of crop fields and grasslands, thus increasing the risk of problematic interactions with farming activities and small game species. Although plasticity of wild boar to various environmental conditions is well known, understanding the ecological patterns that promote the density distribution of the species within agricultural areas remains of importance for adapted management strategies within these landscapes. Inside a recently occupied area (between 10-30 years of wild boar regular presence) of southern Belgium, we studied the relation between occurences of wild boar population, estimated by hunting bag and crop damages, with a set of environmental, anthropic and landscape variables. We used Maximum Entropy (MaxEnt) approach to analyze the data. Considering the main factors known to favour wild boar distribution, we hypothesized that crop fields providing cover and food, deciduous forest (providing mast) and water stream density are the main factors influencing the wild boar density distribution. The results are used to derive a habitat suitability map of wild boar distribution in northern Wallonia where wild boar recently starts to spread. [less ▲]

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See detailOrganometallic-mediated radical polymerization of vinyl amides: Effect of metal coordination
Kermagoret, Anthony ULiege; Morin, A.; Hurtgen, Marie ULiege et al

Conference (2012, September 04)

Detailed reference viewed: 56 (9 ULiège)
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See detailL’Action ou l’Espace : aux Prémices du Processus de la Conception Architecturale
Allani, Zeineb ULiege

Conference (2012, September 04)

L’architecte, en tant que concepteur d’espaces, est confronté à un dilemme majeur, lors de la conception architecturale sera-t-il amené à privilégier l’image que donnera son projet en tant que forme ... [more ▼]

L’architecte, en tant que concepteur d’espaces, est confronté à un dilemme majeur, lors de la conception architecturale sera-t-il amené à privilégier l’image que donnera son projet en tant que forme matérielle perçue visuellement afin d’offrir au regard une oeuvre architecturale, parfois même sculpturale, ou bien doit-il sacrifier l’aspect au dépend de l’utilisation de l’espace par l’usager (le confort, l’habitude, la culture, …) ? [less ▲]

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See detailAnalysis of the Biocompatibility of Different Intraocular Lens (IOL) Material Using Mass Spectrometry Tisssue Imaging
Bertrand, Virginie ULiege; Debois, Delphine ULiege; Calligaris, David ULiege et al

Conference (2012, September 04)

The cataract corresponds to the total or partial opacification of the lens of the eye preventing the passage of the light. At present, the surgery is the only effective treatment to overcome the cataract ... [more ▼]

The cataract corresponds to the total or partial opacification of the lens of the eye preventing the passage of the light. At present, the surgery is the only effective treatment to overcome the cataract. The surgical intervention consists in removing the cloudy lens and to replace it by an artificial intraocular lens (IOL). The in vivo implantation of these synthetic lenses involves the evaluation of several factors as their physico-chemical properties, their capacities to interact with lens epithelial cells and proteins, as well as their biocompatibility. During a previous study, we demonstrated major differences concerning the tackiness (atomic force microscopy), the cellular adhesion and the protein adsorption of various polymer disks intended for the manufacturing of intraocular lenses. The aim of this work was to correlate a histological analysis to a mass spectrometry imaging analysis performed on the same sample. To estimate the biocompatibility of the biomaterials, an animal testing was realized in rabbits. The various polymers were implanted subcutaneously. After one month, the 2 cm x 3 cm pieces of rabbit skin and underlying muscle with a 2 cm thickness were removed, fixed with formaldehyde 10% during six days, treated for the paraffin inclusion and stored at room temperature until use. Slices of 5 µm thickness were performed using a microtome. Paraffin was removed and tissue sections were washed in graded ethanol baths. The slices were then stained with the hematoxylin and eosin dyes. The analysis of stained sections showed different histo-morphological features according to the implanted polymer. For MALDI MSI purposes, on tissue protein digestion was performed using trypsin (1) and the MALDI matrix (α-cyanohydroxycinnamic acid, 5 mg/mL in ACN/0.2% TFA 70:30) was deposited using an ImagePrep automated sprayer (Bruker Daltonics, Bremen, Germany). Experiments were carried out using an UltraFlex II TOF/TOF mass spectrometer (Bruker Daltonics, Bremen, Germany). MALDI imaging can show the detection of different proteomic profiles according to the tested biomaterials, which may be considered as biocompatibility markers. The MALDI images of these markers are then correlated with the histo-morphological profiles. Consequently, mass spectrometry imaging can become a powerful tool in the evaluation of the biocompatibility of artificial implants in biomedical application. [less ▲]

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See detailEsthétique du symptôme et politique de l’imagination
Hagelstein, Maud ULiege

Conference (2012, September 04)

Cette intervention se propose de retracer les moments décisifs de la construction de la théorie de l’image didi-hubermanienne. Celle-ci se décline en deux temps (esthétique du symptôme / politique de ... [more ▼]

Cette intervention se propose de retracer les moments décisifs de la construction de la théorie de l’image didi-hubermanienne. Celle-ci se décline en deux temps (esthétique du symptôme / politique de l’image), jalonnés de rencontres avec des auteurs dont l’influence est manifeste (Panofsky, Freud, Warburg, Benjamin). En automne 2006, la revue Vacarme (n°37) proposait à ses lecteurs un entretien avec Georges Didi-Huberman (mené par Pierre Zaoui et Mathieu Potte-Bonneville). Au milieu de l’entretien, surgit la demande suivante : « Permettez-moi de vous poser la question un peu brutalement : quel est votre rapport réel à la politique ? […] Il semble que vous entreteniez un rapport extrêmement subtil, mais du même coup peu lisible au premier coup d’œil, à la chose publique et à la question des rapports sociaux en général. […] Il semble que vous vous arrêtiez toujours aux frontières de l’engagement, à la fois pour des motifs à la Foucault – ne pas s’emparer de la parole et de l’image de ceux qui souffrent ou agissent – et pour des motifs plus "indicibles" ». La réponse de Didi-Huberman n’est pas – à cet endroit du moins – bouleversante d’originalité : il faut bien dit-il reconnaître sa limite sur certains dossiers de l’actualité – s’engager à tout va, sans connaître les problèmes de première main, ne servirait à rien. Il admet : de nature contemplative, le rapport aux images semble d’abord coupé de l’action. Mais par ailleurs, le théoricien de l’image ne peut se résoudre à la fascination d’un monde visuel replié sur lui-même. Il faut bien qu’il sorte du musée, de la bibliothèque, de l’atelier d’artiste, pour plonger au cœur du réel et se contraindre à affronter ses aspects les plus inquiétants. Mettre les images au contact du réel, voilà la tâche la plus difficile : « L’inquiétude du contact entre l’image et le réel n’est autre qu’une accession à la dimension politique des images » . Depuis cet entretien, Didi-Huberman a développé une « politique de l’image » plus explicite, avec deux ouvrages en 2009 : Quand les images prennent position (premier volume d’un cycle intitulé L’œil de l’histoire – en trois volumes désormais tous publiés) et Survivance des lucioles (autour de Paolini). À nouveau marqué par le souffle critique de Walter Benjamin, ce dernier texte permet à son auteur de se situer très clairement dans le champ de la réflexion politique sur l’image – en prenant, surtout, ses distances à l’égard de la pensée « apocalyptique » de Giorgio Agamben. Tel est bien l’argument décisif de Survivance des lucioles : face au constat tragique du « dépérissement culturel » de nos sociétés actuelles, deux attitudes sont possibles. Soit on souligne le pire, en reprochant aux images leur pacte secret avec le pouvoir aliénant, et on prend le ton défaitiste du chroniqueur de la fin des temps, attendant désespérément une rédemption venue d’on ne sait où. Soit on souligne les efforts de résistance, les lueurs du contre-pouvoir et la « capacité de suspension, de transformation, de bifurcation » de l’image s’insérant dans la sphère politique. Mais on ne peut pas parler pour autant d’un « tournant politique » de l’esthétique didi-hubermanienne, tant les thèmes aujourd’hui avancés dans les ouvrages récents font écho aux premières interventions. Le débat épistémologique entamé très tôt avec les maîtres à penser de l’histoire de l’art traditionnelle montrait déjà à quel point les opérations théoriques relatives aux images (décrire, interpréter, analyser, retracer l’histoire) sont lourdes de conséquences d’un point de vue idéologique. Je voudrais faire voir la continuité très nette que l’on peut établir entre l’esthétique du symptôme et la politique de l’image. [less ▲]

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See detailMetagenomic analysis as a tool to better characterize the bacterial content of food and food preparations.
Taminiau, Bernard ULiege; Delhalle, Laurent ULiege; Nezer, Carine et al

Conference (2012, September 04)

Metagenomic analysis is a new culture-independent approach for assigning a taxonomic, genic or functional identity to bacterial DNA fragments of unknown origin. Its power and utility is increasingly ... [more ▼]

Metagenomic analysis is a new culture-independent approach for assigning a taxonomic, genic or functional identity to bacterial DNA fragments of unknown origin. Its power and utility is increasingly rising thanks to the next generation sequencing techniques. It is now mature and cheap enough to be transposed to more applied fields like the food microbiology. We demonstrated in several studies the extraordinary potential of the targeted metagenomic analysis to different problematics related to food products. First, this approach is highly useful for the validation of the shelf life of food products. We analyzed standardized pork minced meat and meat product samples packaged either under modified atmosphere (MAP - 30% CO2, 70% O2) or under permeable atmosphere packaging, stored at different temperature (4°C, 4-8°C and 12°C) until the end of shelf-life. The metagenomic analysis allowed to identify species of all the sub-dominant bacterial populations. This approach showed why MAP can improve meat quality by favoring certain species rather than others. As a second example, we sought to identify the potential spoiling bacteria in several food products like raw fish, rind cheese or vacuum packed beef meats in order to illustrate the usefulness of metagenomics for the quality control of food preparations. Samples from various food matrices were screened to identify the bacterial contaminants. We combined the bioinformatics analysis with a classical approach to generate effective quantitative data for the various bacterial populations detected. This analysis characterizes the samples both on the identity of the potential spoiling bacteria present and on the quantification level of the contaminants. Finally, the metagenomic analysis reveals the presence of numerous uncultured and uncharacterized bacteria. The use of a carefully designed analysis pipeline has been used to ensure to label the bacterial population with a precise taxonomic identity and to determine whether the targeted population corresponds to a known species or not. This way, even if the nearest known homologous sequence is an environmental sample, its relatedness to known species can be deduced. This represents a new tool to trace yet uncharacterized food spoiling bacteria. [less ▲]

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See detailStudy  of  breast  cancer  adaptation  to  anti-­angiogenic  therapies  by   molecular  imaging  on  tissue  slides
Cimino, Jonathan ULiege; Calligaris, David ULiege; Debois, Delphine ULiege et al

Conference (2012, September 04)

Breast   carcinoma   is   the   most   common   and   second   leading   cause   of   cancer   mortality   in   women1.   The   ␣␣␣␣␣␣␣␣␣␣␣␣ ␣␣␣ ␣␣␣␣ ␣␣␣␣␣␣␣␣␣␣␣␣ ␣␣␣␣␣␣␣␣ ␣␣␣ ␣␣ ␣␣␣␣-­‐limiting   ... [more ▼]

Breast   carcinoma   is   the   most   common   and   second   leading   cause   of   cancer   mortality   in   women1.   The   ␣␣␣␣␣␣␣␣␣␣␣␣ ␣␣␣ ␣␣␣␣ ␣␣␣␣␣␣␣␣␣␣␣␣ ␣␣␣␣␣␣␣␣ ␣␣␣ ␣␣ ␣␣␣␣-­‐limiting   secondary   step   in   tumorigenesis   led   to   extensive   pre-­‐clinical   researches   on   angiogenesis   and   finally   the   approval   of   VEGF-­‐neutralizing   antibodies   (bevacizumab)  and  VEGF  receptor  tyrosine  kinase  inhibitors  (RTKs:sunitinib).  The  Sunitinib  has  been  used   clinically   in   patients   with   breast   cancer   refractory   to   other   therapeutic   agents2.   Unfortunately,   like   the   cytotoxic   therapies,   these   drugs   do   not   produce   lasting   effects   and   resistance   to   treatment   appeared   clinically3.   Recently,   independent   laboratories   have   reported   experimental   data   demonstrating   that   anti-­‐ angiogenic   treatments   inhibit   tumor   growth,   but   also   stimulate   the   formation   of   lung   metastases   after   treatment   discontinuation4.   The   field   of   imaging   mass   spectrometry   provides   new   tools   to   visualize   and   study  the  profiles  of  proteins  and  small  molecules  associated  with  biomedical  problems5.   To  this  aim,  we  conducted  a  series  of  experiments  to  setup  a  reproductible  model  of  resistance  to  sunitinib.   The   cells   MDA-­‐MB-­‐231   triple   negative,   from   human   breast   cancer   and   expressing   luciferase   are   injected   subcutaneously  into  mice  RAG1-­‐/-­‐.  The  mice  were  divided  into  four  experimental  groups  including,  on  the   one  hand,  control  mice  treated  with  placebo  (Carboxymethyl  cellulose,  CMC)  sacrificed  on  day  30  (group  1)   or  when  the  tumor  reached  a  volume  of  300  mm3  (group  2).    On  the  other  hand,  Sunitinib-­‐treated  mice  (LC   Laboratories,   40mg/kg/day),   sacrificed   at   day   30   (group   3),   or   when   the   tumor   reached   a   volume   of   300   mm3  (group  4).  MALDI  mass  spectrometry  imaging  was  performed  on  tissue  sections  of  tumors  and  organs   subsequently   colonized   by   metastases.   Matrix   sublimation   was   used   to   coat   tumor   sections   (14   μm-­‐tick)   with   1.5   Diaminonaphthalene   (1.5   DAN)   for   lipids   analysis   and   Sinapinic   acid   (SA)   for   entire   proteins   analysis.   Ion   cartographies   were   recorded   with   a   Solarix9.4T   FTMS   instrument   for   lipids   and   with   an   Ultraflex   II   TOF-­‐TOF   instrument   for   entire   proteins   (BrukerDaltonics,   Bremen,   Germany)   with   a   spatial   resolution  of  100  μm.     The  analysis  of  differential  protein/lipid  profiles  with  high  mass  accuracy  and  broadband  resolution  allows   detection   of   intense   signals   from   lipid   families   such   as   Phosphatidylcholine   (PC),   Triglyceride   (TAG),   Sphingomyelin   (SM)   and   precise   lipid   droplets   or   tumor   cells   differentiated   location   in   the   Sunitinib   resistant   tumor   cells   compared   to   control   cells.The   protein   profiles   of   the   4   groups   of   mice   show   differences   in   intensity   and   location,   enabling   a   correlation   to   inflammatory   (highlighted   by   histological   staining)  and  angiogenic  phenomenon.   [less ▲]

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See detailAutomated Mineral Mapping in Optical Ore Microscopy : accuracy and limitations
Pirard, Eric ULiege

Conference (2012, September 03)

Detailed reference viewed: 182 (24 ULiège)