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See detailSearching for water in the atmosphere of the hot Saturn WASP-49b
Delrez, Laetitia ULiege

Conference (2013, March 08)

At the forefront of comparative exoplanetology, the atmospheric characterization of transiting exoplanets is revealing the intimate nature of these 'new worlds'. In this exciting context, we present here ... [more ▼]

At the forefront of comparative exoplanetology, the atmospheric characterization of transiting exoplanets is revealing the intimate nature of these 'new worlds'. In this exciting context, we present here some preliminary results of our VLT program that consisted in monitoring three transits of the new 'hot Saturn' WASP-49b (Lendl et al. 2012) with the FORS instrument in Multi-Object Spectroscopic mode (MXU). [less ▲]

Detailed reference viewed: 34 (3 ULiège)
See detailRéguler par la science: le cas des aliments fonctionnels
Hendrickx, Kim ULiege

Conference (2013, March 08)

Detailed reference viewed: 17 (1 ULiège)
See detailSame-sex parenting in Europe: challenges and prospects
Naziri, Despina ULiege

Conference (2013, March 08)

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See detailTechnologies Alimentaires : « Le rôle et la commercialisation des prébiotiques »
Goffin, Dorothée ULiege

Conference (2013, March 08)

Technologie assessment appliqué à l'agroalimentaire

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See detailPRIM related correlations
Mathéi, Axel ULiege

Conference (2013, March 07)

Detailed reference viewed: 48 (9 ULiège)
See detailLes allergies médicamenteuses : point de vue du biologiste
GADISSEUR, Romy ULiege

Conference (2013, March 07)

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See detailPrévention des courbatures musculaires en pratique sportive
Hody, Stéphanie ULiege

Conference (2013, March 07)

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See detailQuestions de méthodologie pour une thèse en droit public comparé
Bouhon, Frédéric ULiege

Conference (2013, March 07)

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See detailProtocols, Standards and Methods for Odour Monitoring by Sensor Technologies
Romain, Anne-Claude ULiege

Conference (2013, March 06)

Detailed reference viewed: 32 (8 ULiège)
See detailSedimentation and active faulting in the western tip of the Gulf of Corinth, Greece
Beckers, Arnaud ULiege; Bodeux, Sarah ULiege; Beck, Christian et al

Conference (2013, March 06)

The Gulf of Corinth is one of the fastest-spreading intracontinental rift on Earth, a 120km long E-W structure propagating westward toward the Aegean subduction zone. Present day kinematics (GPS data ... [more ▼]

The Gulf of Corinth is one of the fastest-spreading intracontinental rift on Earth, a 120km long E-W structure propagating westward toward the Aegean subduction zone. Present day kinematics (GPS data) indicates an opening direction oriented NNE-SSW and an opening rate increasing westward from 11 mm y-1 in the central part to 16 mm y-1 in the westernmost part. The high extension rate in the western part of the rift would imply a high seismic hazard if faults are not creeping. Our work concerns this western extremity of the Gulf of Corinth, for which we propose an accurate map of submarine faults as well as first chronostratigraphic interpretations. The map is based on two high-resolution seismic reflection surveys (single channel sparker) performed aboard HCMR’s R/V ALKYON, within the frame of SISCOR ANR Project. About 600 km of seismic lines were acquired, with a 200 msTWTT maximum penetration. We identified last glacial maximum (LGM) lowstand erosion surfaces along the northern coast. They made possible the mapping of post-LGM sediment thickness as well as estimates of subsidence rates. Depocenters location is controlled by river deltas where up to 75m of post-LGM sediments are stored. Numerous, up to 15m thick, mass transport deposits fill the central and eastern parts. Seafloor erosion is observed on 7.5 km2 in the western part, involving action of marine currents. The northern coast is subsiding between 1.7 and 2.2 mm y-1. We also mapped the following fault network described from east to west. In the eastern part, the sedimentary infill is faulted by the known North Eratini, South Eratini and West Channel faults. At the longitude of the Trizonia Island, the seafloor is mainly horizontal and the only fault is the south dipping Trizonia fault. Between the Trizonia Island and the Mornos Delta, the shallower northern part of the gulf shows a diffuse pattern of deformation with faults striking mainly E-W and ESE-WNW. In the southern part of the rift, no fault has been observed between the Psatopyrgos fault bounding the southern side of the Gulf and the Mornos Delta. To the West, between the Mornos Delta and the Rion Straits, three main south dipping, normal and oblique faults have been identified. This NE-SW striking fault system could be part of a local transfer zone linking the Patras and the Corinth Basins, or of the NE-SW right-lateral slip fault system interconnecting the Gulf of Corinth to the Kephalonia transform Fault and the Hellenic subduction. [less ▲]

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See detailPhysico-chemical properties and photocatalytic activity of calcined P-doped and P/Ag-doped TiO2 xerogels
Bodson, Céline; Pirard, Sophie ULiege; Pirard, René ULiege et al

Conference (2013, March 05)

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See detailHypertension artérielle résistante : place actuelle de la dénervation rénale dans sa prise en charge
Krzesinski, Jean-Marie ULiege

Conference (2013, March 05)

HTA résistante touche 8% de la population hypertendue Nécessité d’une approche méthodique pour débusquer l’erreur dans la prise en charge Importance des médicaments interférant, du gain de poids et de ... [more ▼]

HTA résistante touche 8% de la population hypertendue Nécessité d’une approche méthodique pour débusquer l’erreur dans la prise en charge Importance des médicaments interférant, du gain de poids et de l’alimentation trop salée. Recherche d’un SAHOS Haute dose de diurétique et souvent association avec la spironolactone. Et si cela résiste? …dDénervation rénale? 1% des hypertendus traités! [less ▲]

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See detailLatest results in forecasting and DLR related to Twenties and other projects
Nguyen, Huu-Minh ULiege; Doutreloup, Sébastien; Erpicum, Michel ULiege et al

Conference (2013, March 05)

The goal of the meeting was to further (see Minutes of the WG3-DLR meeting which took place in Liège, Belgium, November 27th-28th 2012) investigate the “Dynamic Line Rating DLR” potential for the ... [more ▼]

The goal of the meeting was to further (see Minutes of the WG3-DLR meeting which took place in Liège, Belgium, November 27th-28th 2012) investigate the “Dynamic Line Rating DLR” potential for the efficient management of electric grids in view of the increasing share of intermittent renewable energies (wind & solar) and to proceed with the preparation of two posi-tion papers dedicated to 1) DLR forecasting and 2) DLR planning. It was also aimed at finaliz-ing the Terms of Reference for the establishment of a new Working Group within the Cigré B2 Study Committee. [less ▲]

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See detailParcours d’auteur : l’émergence de Voltaire en "philosophe"
Daubercies, Laurence ULiege

Conference (2013, March 02)

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See detailVulnérbilité, robustesse et fragilité en gériatrie
Petermans, Jean ULiege

Conference (2013, March 02)

Detailed reference viewed: 58 (7 ULiège)
See detailPourquoi en devenant psychanalyste je ne suis pas devenue historienne
Naziri, Despina ULiege

Conference (2013, March 02)

Detailed reference viewed: 36 (0 ULiège)
See detailGreek Polytheism and Representation of Sacred Space: Aphrodite and Heracles on Cos
Paul, Stéphanie ULiege

Conference (2013, March 01)

Detailed reference viewed: 34 (2 ULiège)
See detailThe singing voice evaluation
Larrouy, Pauline ULiege; Morsomme, Dominique ULiege

Conference (2013, March 01)

Singing is an activity widely shared. In order to determine whether a vocal performance is “in tune” or not, to understand better the causes of poor pitch singing or to judge the quality of a singer ... [more ▼]

Singing is an activity widely shared. In order to determine whether a vocal performance is “in tune” or not, to understand better the causes of poor pitch singing or to judge the quality of a singer, objective tools are needed. Studies leaded for a PhD validate an objective analysis of the vocal accuracy but also observe the effects to take into account for the singing voice evaluation. Experimental as well as artistic and pedagogical perspectives appear from the conclusions of those studies. [less ▲]

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See detailNotre jeunesse déliquante et violente : info ou intox?
Gavray, Claire ULiege

Conference (2013, March 01)

Alors que les chiffres montrent qu'on ne remarque pas au niveau global une augmentation de la délinquance et de la violence faites par les jeunes, l'opinion publique a l'impression inverse. Quels est l ... [more ▼]

Alors que les chiffres montrent qu'on ne remarque pas au niveau global une augmentation de la délinquance et de la violence faites par les jeunes, l'opinion publique a l'impression inverse. Quels est l'origne et quels sont les enjeux de cette distorsion ? [less ▲]

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See detailEntre texte et image : Sarapis et Neôtera élus parmi les dieux
Veymiers, Richard ULiege

Conference (2013, March 01)

Detailed reference viewed: 21 (4 ULiège)
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See detailPrise en charge logopedique des patients presbyphoniques
Morsomme, Dominique ULiege

Conference (2013, March 01)

Detailed reference viewed: 122 (7 ULiège)
Peer Reviewed
See detail(Bio)-amphiphilic compounds as biohybrid materials: the case of peptidolipids and glycolipids
Razafindralambo, Hary ULiege

Conference (2013, March)

(Bio)-hybrid compounds are constituted by at least two distinct classes of component covalently linked within the same structure. Amphiphilic compounds of peptide- and oligosaccharide-lipid groups are ... [more ▼]

(Bio)-hybrid compounds are constituted by at least two distinct classes of component covalently linked within the same structure. Amphiphilic compounds of peptide- and oligosaccharide-lipid groups are among representatives bio-hybrid molecules with increasing interests since each of them contains two entities belonging to important categories of biological molecules like proteins, carbohydrates, and lipids. The strength of such compounds is by far their possibility to exhibit multifunctional properties and activities, specifically developed by each of these three biomolecule classes. In addition, their intermediate size with regard to small and large molecular structures may present certain undeniably advantages, for instance, a lower diffusivity and a greater solubility in aqueous solution compared to small and polymeric surfactants, respectively. In this paper, the case of peptide and carbohydrate-based surfactants containing a linear series of alkyl fats will be presented and discussed regarding to interfacial properties, colloidal stabilities, and biological activities with the perspective of getting more efficient hybrid compounds by rational design approaches. [less ▲]

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See detailPatterns of Management Control for Sustainability
Crutzen, Nathalie ULiege; Zvezdov, Dimitar; Schaltegger, Stefan

Conference (2013, March)

Detailed reference viewed: 120 (0 ULiège)
See detailMicroscale ELISA plate screening of essential oils against European damageable plant pathogens
Parisi, Olivier ULiege; Zhiri, Abdesselam; Baudoux, Dominique et al

Conference (2013, March)

Detailed reference viewed: 68 (11 ULiège)
Peer Reviewed
See detailX-ray production cross-sections measurements for high-energy alpha particle beam for Si, Fe and Cu
Dupuis, Thomas; Chene, Grégoire ULiege; Marchal, André ULiege et al

Conference (2013, March)

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See detailPolitique de communication d’un service de police modernisé: défis, enjeux et impacts sur l’identification organisationnelle des membres du personnel
Lisein, Olivier ULiege; Rondeaux, Giseline ULiege

Conference (2013, March)

Dans une société où les notions de marketing, d’image et de réputation sont devenues des impératifs pour toutes les organisations, quels que soient leur forme, leur statut et leurs activités, la parfaite ... [more ▼]

Dans une société où les notions de marketing, d’image et de réputation sont devenues des impératifs pour toutes les organisations, quels que soient leur forme, leur statut et leurs activités, la parfaite maitrise et la gestion efficiente des pratiques de communication externe sont devenues des enjeux fondamentaux. Nombreux sont ainsi les ouvrages qui s’intéressent à cette question et qui regorgent de « bonnes pratiques » à mettre en œuvre en la matière, même si certaines d’entre elles s’apparentent parfois à des raccourcis ne prenant en compte qu’une vision partielle de la problématique et de ses enjeux. Ainsi, la focalisation de plus en plus prononcée sur les impératifs de communication externe tend régulièrement à sous-estimer, voire à oublier deux conséquences clés des pratiques en question au niveau organisationnel : d’une part, les nécessaires articulation et cohérence entre la communication externe et la communication interne ; d’autre part, les « retombées » des actions de communication externe auprès du personnel, notamment en termes d’identification organisationnelle. Cheney et Christensen (2004) partagent cette opinion et plaident pour que chercheurs et praticiens cessent de concevoir la communication institutionnelle au travers de deux champs distincts et séparés : un qui serait tourné vers l’« extérieur » de l’organisation ; un autre focalisé vers l’« intérieur » et le personnel de l’institution. L’évolution de l’environnement sociétal, l’accroissement des politiques de communication ainsi que l’interdépendance qui existe entre l’image externe recherchée par l’organisation et le vécu interne des membres du personnel sont autant d’arguments que mettent en avant ces auteurs pour justifier les nécessaires cohérence et intégration des pratiques de communication. Un consensus semble d’ailleurs émerger depuis lors dans la littérature spécialisée sur la relation qui unit les pratiques de communication externe et interne (D’Almeida et Libaert, 2007 ; Devirieux, 2007), qui doivent désormais être vues comme deux composantes complémentaires d’une stratégie de communication globale et intégrée (Libaert, 2005 ; Boistel, 2007). Ceci est d’autant plus vrai que, comme le soulignent D’Almeida et Libaert (2007, p.13), « les publics auxquels les entreprises s’adressent sont de moins en moins étanches : il y a entre eux un nombre croissant d’interactions et de convergences. Un salarié est un vecteur de l’image de son entreprise, il est aussi un consommateur, un citoyen (…). Les messages développés auprès des différents publics doivent donc être cohérents et non pas contradictoires. La cohérence de la communication est donc une des conditions de sa crédibilité ». Le secteur public en général, et les services de police en particulier, n’échappent pas à cette tendance. Soumis à une pression médiatique de plus en plus forte (Jones, 2007) ainsi qu’à l’obligation de rendre des comptes à leurs stakeholders – autorités de tutelle, pouvoirs politiques, parquets, partenaires, citoyens, etc. – sur leurs activités et sur la « performance » des actions policières (Collier et al., 2004), dans la lignée des impératifs de transparence et d’ouverture des services publics voulus par le New Public Management (Gruening, 2001 ; Butterfield et al., 2005 ; Andersson et Tengblad, 2009), les services de police sont tenus de renforcer et de professionnaliser leur stratégie de communication, laquelle est par ailleurs d’une nature intrinsèquement hétérogène, complexe, et soumise à de multiples exigences (Lemieux, 2005 ; McGovern, 2005 ; Weitzer et Tush, 2005 ; Camerati, 2006 ; Gelders et al., 2007 ; Bradford et al., 2009). Les services de police sont ainsi invités à quitter les logiques de confidentialité et de discrétion qui leur sont souvent reprochées, à s’ouvrir davantage vers l’extérieur et à s’adapter aux impératifs de la société contemporaine en termes de communication. Les défis sont multiples : légitimer leur existence, expliquer leur raison d’être et leur logique d’action, justifier les actions entreprises, renforcer la confiance de la population ou encore favoriser les attitudes et les appréciations positives des citoyens à leur égard. Les bénéfices attendus de telles actions d’ouverture – notamment envers la presse et les médias – sont exposés dans la littérature spécialisée sur la communication policière (voir entre autres Motschall et Cao, 2002 ; Karchmer, 2002 ; Leishman et Mason, 2003 ; Jones, 2007), qui évoque entre autres une information et une couverture plus positives de la police et de ses actions, ce qui assurera à terme une meilleure image de celle-ci auprès de la population ainsi qu’une plus grande facilité à faire adhérer les citoyens à la réalisation des buts poursuivis par les services de police (Weitzer et Tuch, 2005 ; Bradford et al., 2009). Une stratégie de communication externe pertinente ne serait en outre pas sans conséquence au niveau interne. En effet, si la communication à destination des membres du personnel constitue un excellent moyen de faciliter l’identification organisationnelle de ceux-ci (Chreim, 2001) et d’ainsi favoriser une convergence entre les objectifs individuels et les buts organisationnels, la perception qu’a l’environnement extérieur du prestige de la fonction et de la légitimité de l’institution semble également jouer un rôle important en la matière. Mignonac et al. (2006) mettent ainsi en évidence les effets interactifs du prestige externe perçu et du besoin d’identification organisationnelle. C’est également le propos de Smidts et al. (2001), qui identifient une corrélation positive entre la communication interne, le prestige externe perçu par les membres de l’organisation et leur degré d’identification organisationnelle. Ce concept de « Perceived External Prestige », que Dutton et al. (1994) appellent également l’image externe construite, et qui peut être défini comme la perception des employés sur la manière dont le monde extérieur voit leur organisation (Bartels et al., 2007) ou comme « how an employee thinks outsiders view his or her organization » (Smidts et al., 2001, p.1052), est vu comme une donnée explicative de l’attachement que tout un chacun peut avoir à l’organisation qui l’emploie. Cette question a notamment fait l’objet de recherches ciblées au niveau des services de police et de l’identification des policiers à leur institution. Yim et Schafer (2009), par exemple, étudient la façon dont des policiers américains perçoivent l’image qu’ils donnent d’eux à la population et les retombées qui en résultent sur leur satisfaction au travail et sur leur attachement à l’institution policière. Partant des travaux antérieurs de Cao et al. (1998), de Fosam et al. (1998) et de Lim et al. (2000), ils posent l’hypothèse que « officers’perceived job image, that is, of how they think they are seen by the public, affects work-related attitudes, such as job satisfaction » (Yim et Schafer, 2009, p.19). Et ces auteurs de postuler par extension que ces résultats influent également sur l’efficacité des policiers et des services de police dans les missions qui leur sont attribuées. Les résultats de ces recherches laissent par conséquent sous-entendre l’importance du développement de stratégies de communication adaptées, tant leurs effets sont susceptibles de se faire ressentir directement – notamment au niveau externe, sur l’image et la légitimité de l’institution policière – mais aussi indirectement – en interne, à travers le processus d’identification organisationnelle des membres du personnel (Williams, 2002 ; Yim et Schafer, 2009). Cette approche ne donnera toutefois les effets attendus que si elle est développée et mise en œuvre en respectant les impératifs de cohérence susmentionnés. Des incohérences entre les actions de communication interne et externe, des incohérences entre les images projetées vers l’extérieur et les réalités vécues au quotidien en interne ou encore des incohérences entre les actions de communication et les pratiques effectives de management du personnel ne pourront en effet que se traduire par un manque de crédibilité des messages véhiculés et risquer d’engendrer un désabusement ou une perte de motivation de la part des salariés dans l’exercice de leur fonction (Dutton et Dukerich, 1991 ; Dutton et al., 1994 ; Smidts et al., 2001 ; Bartels et al., 2007). Tel est le contexte général de notre proposition de communication, où nous cherchons plus particulièrement à mettre ces tendances à l’épreuve des faits. Pour ce faire, nous nous appuyons sur les résultats d’une étude empirique qui nous a conduits à nous immerger pendant plus d’un an dans les services de la police fédérale belge et à y analyser les pratiques de communication à l’œuvre. Cette recherche était articulée autour de quatre axes de travail complémentaires : 1) une analyse de la littérature sur les pratiques de communication des services de police, leurs enjeux, leurs difficultés, et les solutions émergentes en la matière ; 2) une analyse de la vision qu’ont les membres de la police fédérale des pratiques de communication de l’institution (étude quantitative menée auprès d’un échantillon de 2000 personnes – 790 questionnaires valides reçus, soit un taux de réponse de 39,5%) ; 3) une analyse des pratiques de communication externe, appréhendée à partir de la perception qu’en ont trois types de partenaires usuels des services de police : les autorités de tutelle et les pouvoirs publics, les autorités judiciaires ainsi que les médias et les journalistes de presse (étude qualitative menée sous la forme d’entretiens semi-directifs auprès de 10 représentants d’autorités institutionnelles et 17 journalistes de presse, tous médias confondus) ; 4) une analyse transversale de nos résultats nous ayant conduits à l’élaboration de différentes recommandations en matière de communication, adaptées selon différents facteurs contextuels et intégrées dans une approche managériale réfléchie en ce sens. Ces résultats, issus d’une double démarche de recherche qualitative et quantitative, seront mobilisés dans le cadre de notre contribution pour souligner les impératifs de cohérence et d’articulation des pratiques de communication interne et externe. Au travers de l’analyse croisée de la perception qu’ont les différentes parties prenantes internes et externes de la police fédérale des pratiques de communication de l’institution, nous mettrons en évidence les distorsions auxquelles les incohérences relevées conduisent et les impacts que ce défaut d’articulation communication interne – communication externe présente en termes de crédibilité des messages, d’identification organisationnelle et de gestion du personnel. Données empiriques à l’appui, nous mettrons en exergue l’importance de développer une politique de communication qui soit intégrée et réfléchie de manière globale. Nous soulignerons également le nécessaire équilibre à trouver dans les pratiques de communication, afin d’éviter de porter l’accent sur l’une des deux sphères (interne ou externe) au détriment de l’autre. Un déséquilibre dans les pratiques de communication et/ou une articulation insuffisante entre les deux sphères conduira en effet vraisemblablement l’organisation à différentes formes de dysfonctionnements, que nous qualifions respectivement au travers des vocables de « narcissisme », « hyper-marketing » et « cacophonie ». Nous dégagerons finalement sur cette base quelques principes cruciaux en matière de communication institutionnelle et de gestion des ressources humaines, nous amenant à proposer des pistes de réflexion tournées vers la mise en œuvre d’une stratégie de communication intégrée et polyphonique. [less ▲]

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See detailPotentialités et limites de l'emploi de l'huile de Jatropha curcas L. comme insecticide
Mergeai, Guy ULiege

Conference (2013, March)

Detailed reference viewed: 34 (11 ULiège)
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See detailZnO/PVA Macroscopic Fibers Bearing Anisotropic Photonic Properties
Kinadjian, Natacha ULiege; Achard, Marie-France; Julian-Lopez, Beatriz et al

Conference (2013, March)

Composite PVA/ZnO-nanorods fibers, synthesized through co-axial flux extrusion exhibit higher anisotropic photonic properties, both in absorption and emission, as a result of the collective alignment of ... [more ▼]

Composite PVA/ZnO-nanorods fibers, synthesized through co-axial flux extrusion exhibit higher anisotropic photonic properties, both in absorption and emission, as a result of the collective alignment of the ZnO nanorods along the main axis of the PVA fiber. This photonic anisotropy is triggered by a synergistic interaction between the PVA matrix, stretched above the glass transition temperature (Tg), and cooled down under strain. Compared with non-elongated fibers that present an isotropic emission, composite fibers previously submitted to a tensile stress absorb selectively UV emission when the polarized laser beam is parallel to the main axis of the fiber. In addition, their photolumincescence is also anisotropic, with a waveguide behavior along the main axis of the fiber. Mechanical properties of these composite fibers are also drastically improved, compared with pure PVA fibers: the longitudinal Young modulus of these fibers is increased from 2 to 6 GPa upon ZnO addition, a value similar to those already observed for composite fibers, prepared either with carbon nanotubes, or V2O5 macroscopic fibers. [less ▲]

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See detailTime Controlled Cryogenic Zone Compression (t- CZC) GC-HRMS. Increasing sensitivity to the Attogram Level?
Krumwiede, D; Mehlmann, H; Focant, Jean-François ULiege et al

Conference (2013, March)

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See detailLa CEC en 2013: Etat de l'art
BLAFFART, Francine ULiege

Conference (2013, March)

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See detailDifferent spatial and territorial patterns between Northern pigtail macaques and white-handed gibbons using the characteristic Hull polygon method
Dominguez, José Juan Manuel; Asensio, N; Huynen, Marie-Claude ULiege et al

Conference (2013, March)

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See detailDelayed diagnosis of cardiomyopathy in a girl treated for asthma bronchiale
MASTOURI, M.; FUDVOYE, Julie ULiege; ANTOLE, N. et al

Conference (2013, March)

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See detailSalmonella infections in young children due to turtle contamination
MATHY, F.; CHIARADIA, F.; MASTOURI, M. et al

Conference (2013, March)

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See detailCardiac malformations in neonates born from mothers with gestational diabetes
ANTOLE, N.; JACQUEMART, C.; GKIOUGKI, Evangelia ULiege et al

Conference (2013, March)

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See detailMeasurement of ultrasensitive Troponin T levels in cord blood for early detection of myocardial cell
GKIOUGKI, Evangelia ULiege; TEIXEIRA, Jelda ULiege; BIONDOLILLO, G. et al

Conference (2013, March)

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See detailDesign of the IT Management Arrangements in a Post-NPM Context: An Overview of the 50 US State Governments
Markus, M. Lynne; Bui, Quang Neo; Jacobson, Dax D. et al

Conference (2013, March)

A recurrent call for an increased use of information technology in the public administration has been made since the beginning of the “New Public Management” wave. It has been reinforced these last years ... [more ▼]

A recurrent call for an increased use of information technology in the public administration has been made since the beginning of the “New Public Management” wave. It has been reinforced these last years through the “digital-era governance” movement, emphasizing the important role that IT may have in the effective transformation of the public institutions and in the successful delivery of citizen-centered services. However, the success of e-government is proved not to be a direct effect of the increased use of IT, but to also depend on the organizational and institutional arrangements that governments enact for the management of their IT resources. In this context, our paper proposes to offer an updated view of the way US State Governments manage, organize, and govern their IT activities. To do so, we consider the possible interactions between two dimensions: 1) the organization of IT activities and 2) the control over decisions about IT activities (also known as governance). This analysis is made for each of two categories of IT activities: 1) IT projects (such as Enterprise Architecture implementation, website development, etc.) and 2) IT services (such as the operation of networks, the daily support services, etc.). Our empirical data indeed show that neither dimension alone provides a good characterization of governmental IT management arrangements. The latter requires an in-depth understanding of how US States appear to combine a centralization and/or a decentralization design of the organization and of the control of their IT activities. The findings that we develop through this contribution have the potential to enhance the general understanding of the barriers to, and enablers of, e-government success, and to put into perspective some insights of the new public management and digital-era governance movements concerning the use of IT in the public sector. [less ▲]

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See detailDesign Synthesis and Use of Polypeptides as Biosynthetic Nanomachines
Asano, Marie ULiege

Conference (2013, March)

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See detailEXAP 15254-5 Extrapolation of height above 4m in partition of metal sandwich panels
Dumont, Fabien ULiege; Wellens, Eric ULiege

Conference (2013, March)

When testing the fire resistance of metal sandwich panels, the annex B of EN 15254-5 gives rules for the consequently allowed extension of span length. The processing of these rules requires that specific ... [more ▼]

When testing the fire resistance of metal sandwich panels, the annex B of EN 15254-5 gives rules for the consequently allowed extension of span length. The processing of these rules requires that specific measurements are carried out on joints between panels during the test. When a set of tests has been realised on panels of different thicknesses, but no measurement has been carried out on joints during these tests, the relevance of the following processing is analysed : 1. redo only the tests on panels of minimum and maximum thicknesses and carry out the measurement on joints ; 2. deduce the extended height allowed for these tests ; 3. interpolate these results to panels of intermediate thicknesses. [less ▲]

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See detailControlled and automatic memory retrieval in Alzheimer's disease
Bastin, Christine ULiege

Conference (2013, February 28)

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See detailFunctionalized biodegradable polymers for tissue engineering and drug delivery purposes
Grandfils, Christian ULiege

Conference (2013, February 28)

Detailed reference viewed: 25 (1 ULiège)
See detailEvaluations à court et à long terme de la qualité vocale après microchirurgie cordale
Finck, Camille ULiege

Conference (2013, February 27)

comment évaluer la qualité vocale après microchirurgie cordale? L'évaluation est à la fois subjective et objective. description des variables mesurables, des outils d'analyse vocale et des méthodes ... [more ▼]

comment évaluer la qualité vocale après microchirurgie cordale? L'évaluation est à la fois subjective et objective. description des variables mesurables, des outils d'analyse vocale et des méthodes statitiques utilisées [less ▲]

Detailed reference viewed: 17 (1 ULiège)
See detailMetal homeostasis in plants: what can we learn from zinc hyperaccumulators?
Hanikenne, Marc ULiege

Conference (2013, February 26)

Detailed reference viewed: 13 (1 ULiège)
See detailStochastic Dimension Reduction of Multi Physics Systems through Measure Transformation
Phipps, Eric; Constantine, Paul; Red-Horse, John et al

Conference (2013, February 26)

Uncertainty quantification of multiphysics systems represents numerous mathematical and computational challenges. Indeed, uncertainties that arise in each physics in a fully coupled system must be ... [more ▼]

Uncertainty quantification of multiphysics systems represents numerous mathematical and computational challenges. Indeed, uncertainties that arise in each physics in a fully coupled system must be captured throughout the whole system, the so-called curse of dimensionality. We present techniques for mitigating the curse of dimensionality in network-coupled multiphysics systems by using the structure of the network to transform uncertainty representations as they pass between components. Examples from the simulation of nuclear power plants will be discussed. [less ▲]

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See detailLes problèmes cutanés liés aux médicaments
GADISSEUR, Romy ULiege

Conference (2013, February 25)

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See detailLes candidats d’ouverture sur les listes électorales au scrutin communal de 2012
Dodeigne, Jérémy ULiege

Conference (2013, February 25)

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See detailDébats européens sur les formes de la vie marine au Siècle des Lumières
Vandersmissen, Jan ULiege

Conference (2013, February 22)

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See detailLe tutorat: pour un accompagnement réflexif et interactif centré sur l'étudiant / Développer des compétences de tuteur dans un modèle socioconstructiviste et interactif
Dury, Cécile ULiege

Conference (2013, February 22)

Public: 300 personnes de tout secteur d'activité des établissements sanitaires et sociaux Présentation de deux interventions ayant pour objectifs: - Une présentation interactive (60')des grands concepts ... [more ▼]

Public: 300 personnes de tout secteur d'activité des établissements sanitaires et sociaux Présentation de deux interventions ayant pour objectifs: - Une présentation interactive (60')des grands concepts liés à l'agir avec compétences et à l'accompagnement au développement de compétences dans un modèle socioconstructiviste et interactif - une présentation pour faire émerger les "nouvelles" compétences du tuteur en stage. A partir d'une vidéo pour amener à l'analyse de la pratique, la pratique réflexive, l'entretien et le questionnement. Un état des lieux au niveau européen est présenté et les perspectives associées à cette problématique sont discutées. [less ▲]

Detailed reference viewed: 200 (9 ULiège)
Peer Reviewed
See detailTraitement perceptif et phonologique atypique dans le syndrome de Williams.
Majerus, Steve ULiege

Conference (2013, February 22)

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See detailFemina chez Sénèque : apports et limites de la statistique textuelle
Vandersmissen, Marc ULiege

Conference (2013, February 21)

Detailed reference viewed: 43 (7 ULiège)
See detailAllergie alimentaire de l'enfant
GADISSEUR, Romy ULiege

Conference (2013, February 21)

Detailed reference viewed: 7 (0 ULiège)
See detailVideo multitracking and study of the collective behaviour in tadpoles
Delcourt, Johann ULiege

Conference (2013, February 21)

Detailed reference viewed: 35 (9 ULiège)
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See detailLes nouveaux traitements du diabète de type 2
RADERMECKER, Régis ULiege

Conference (2013, February 21)

Detailed reference viewed: 25 (2 ULiège)
See detailParticipation à la Table ronde autour du livre de Denis Seron Ce que voir veut dire
Gyemant, Maria ULiege

Conference (2013, February 20)

Detailed reference viewed: 8 (0 ULiège)
See detailNouveautés dans le diagnostic des allergies
GADISSEUR, Romy ULiege

Conference (2013, February 19)

Detailed reference viewed: 4 (0 ULiège)
See detailLe genre musical sous l’œil de la sociologie des sciences
Levaux, Christophe ULiege

Conference (2013, February 17)

Detailed reference viewed: 14 (1 ULiège)
See detailLa dendrochronologie au service des embarcations gallo-romaines de Pommeroeul
Thiebaux, Aurélie ULiege

Conference (2013, February 16)

Detailed reference viewed: 14 (4 ULiège)
Peer Reviewed
See detailMarvel Studios : du crossover au cross-média. Analyse d’un couplage entre comics et cinéma
Tomasovic, Dick ULiege

Conference (2013, February 15)

La firme Marvel, célèbre maison d’édition de comics devenue également maison de production audiovisuelle, a développé durant les années 2000 une stratégie originale d’adaptation cinématographique des ... [more ▼]

La firme Marvel, célèbre maison d’édition de comics devenue également maison de production audiovisuelle, a développé durant les années 2000 une stratégie originale d’adaptation cinématographique des œuvres imprimées qui marque par son caractère hybride et son intermédialité. D’une part, ces films empruntent nombre de caractéristiques propres à l’écriture des comics pour renouveler la poétique des blockbusters. D’autre part, ces adaptations filmiques influent ensuite sur l’esthétique des comics, bouleversant ainsi la hiérarchie habituelle entre œuvres sources et œuvres adaptées. La question de l’adaptation de ces comics superhéroiques s’avère d’autant plus complexe que la bande dessinée et le cinéma ne sont pas les seuls médias ou les seules pratiques en jeu (animation, industrie du jouet et jeux vidéos doivent être également considérés). Pour tenter de cerner les enjeux de l’actuelle stratégie des adaptations Marvel, cet article tente d’appréhender le film de superhéros en tant que genre à part entière (renouvellement des codes du film d’action, des modes de production et de convergences industriels) en s’attachant, notamment, à un film emblématique de cette production : The Avengers (Joss Whedon, 2012). [less ▲]

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See detailRandom generation of dichotomous CAT response patterns with the R package catR
Magis, David ULiege

Conference (2013, February 14)

The purpose of this talk is to briefly introduce the R package catR that permits random generation of response patterns under a computerized adaptive testing (CAT) framework. First, an outline of the CAT ... [more ▼]

The purpose of this talk is to briefly introduce the R package catR that permits random generation of response patterns under a computerized adaptive testing (CAT) framework. First, an outline of the CAT is proposed, with emphasis on the main concepts (item bank, ability estimation, next item selection, stopping rule, item exposure and content balancing). Then, the performance of the catR package is described by making connections between the general CAT framework and the functionalities of the R functions within catR. An example will be displayed, either as a “live” demonstration of catR or as part of the talk. Potential extensions of catR will also be discussed. The catR package was jointly developed by Gilles Raîche (Université du Québec à Montréal, Canada). [less ▲]

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See detailQuestionnements autour de nouvelles parentalités
Naziri, Despina ULiege

Conference (2013, February 14)

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See detailElective Course Allocation with numerical preferences
Bay, Maud ULiege; Homburg, David ULiege

Conference (2013, February 14)

In Universities, students have to select a specified number of elective courses to be included in their curriculum. Elective courses are a good way to increase students motivation and improve their ... [more ▼]

In Universities, students have to select a specified number of elective courses to be included in their curriculum. Elective courses are a good way to increase students motivation and improve their academic success. At HEC- Management School of the University of Liège, each student has to set a preference value for each course offered and taking a number of courses is mandatory to fulfill his curriculum. The Elective Course Allocation with Numerical Preferences (ECANP) is the problem of assigning to each student the requested number of courses such as to maximize the total preference score (i.e. the overall sum of preference values associated by each student to the courses he has been granted). The course assignment problem often comes along with the course time tabling problem. This issue is not considered in this work as a complete course schedule is available at the time of registration. Each student provides his own schedule availability and can only attend one course at a time. An additional constraint is that a course cannot be granted to a student if his preference value for this course is null. We present the set of rules defined to ensure that a feasible assignment can be obtained for each student. The ECANP problem is modeled as a mixed integer programming model and we use CPLEX to obtain optimal solutions for a set of realistic instances. The ECANP problem is compared to the Elective Course Planning problem solved with heuristic methods in [2], to the course Allocation problem for which a bidding mechanism is described in [1] and to the College Admission (CA) problem as presented in [3]. In particular in the CA each student provides a preference order instead of numerical values and each student must be granted only one college. We discuss the differences between the mathematical formulations of theses problems and the ECANP problem, and their properties. [less ▲]

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See detailDiálogo entre un poeta medieval y una obra aurisecular: Antón de Montoro a partir de "La Lozana Andaluza" de Francisco Delicado
François, Jéromine ULiege

Conference (2013, February 13)

Entre los múltiples juegos intertextuales del Retrato de la Lozana andaluza, obra del presbítero Francisco Delicado publicada en 1528 en Venecia, están bien representados los autores del siglo XV y sus ... [more ▼]

Entre los múltiples juegos intertextuales del Retrato de la Lozana andaluza, obra del presbítero Francisco Delicado publicada en 1528 en Venecia, están bien representados los autores del siglo XV y sus obras, a los que se refiere mediante sencillas menciones, citas o aun a través de una reescritura. Así, tanto los textos de Fernando del Pulgar como La Cárcel de amor de Diego de San Pedro o La Celestina de Fernando de Rojas constituyen parte de los hipotextos que pueblan el mundo variopinto de la cortesana andaluza que nos retrata Delicado. Ahora bien el poeta cancioneril converso Antón de Montoro (¿1404-1477?) sobresale dentro de esta pléyade, aunque no por la frecuencia de las alusiones a esta figura, pues éstas se reducen a una única mención del poeta mediante su apodo « El Ropero », sino más bien por la peculiaridad del contexto en el que se inserta esta mención, entre alusiones a Séneca, Lucano y Marcial. Nuestra comunicación pretende demostrar que esta presencia del cordobés cuatrocentista caracterizado por su agudeza verbal entre los mamotretos del siglo XVI no se reduce a una sencilla intrusión entre autores clásicos en son de burla. Correrá a nuestro cargo determinar en qué medida ciertas afinidades, de índole estética y temática, que comparten Montoro y Delicado podrían explicar la mención de aquél por éste en tan halagador entorno textual. Ahora bien, destacar los principales puntos de contacto entre La Lozana del autor aurisecular y la figura del Ropero de hecho nos permitirá perfilar la peculiaridad del estatuto social de Antón de Montoro y de su quehacer poético. [less ▲]

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See detailAn adaptive large neighborhood search for a vehicle routing problem with multiple trips and driver shifts
Arda, Yasemin ULiege; Crama, Yves ULiege; François, Véronique ULiege

Conference (2013, February 13)

This study analyzes a rich vehicle routing problem with multiple trips and driver shifts. The considered problem features are inspired from the practical case of a Belgian distribution company. Along with ... [more ▼]

This study analyzes a rich vehicle routing problem with multiple trips and driver shifts. The considered problem features are inspired from the practical case of a Belgian distribution company. Along with the multi-trip component, characteristics of this particular problem include time windows, pickup and delivery customers, and site-vehicle dependencies. Internal and external fleets are considered with different cost structures and driver shifts constraints. An adpative large neighborhood search is used to treat the problem. [less ▲]

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See detailWhat is the potential increase in the heart graft pool by cardiac donation after circulatory death?
Noterdaeme, Timothée; HANS, Marie-France ULiege; NELLESSEN, Eric ULiege et al

Conference (2013, February 09)

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See detailViruses and Cancer
Barez, Pierre-Yves ULiege; Carpentier, Alexandre ULiege; Willems, Luc ULiege

Conference (2013, February 08)

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See detailA general lot-sizing problem in a closed-loop supply chain with returns
Amand, Guillaume ULiege; Arda, Yasemin ULiege

Conference (2013, February 08)

We consider a stochastic version of the multi-product multi-level capacitated lotsizing and scheduling problem with sequence-dependent setups. A bottler needs to determine its production schedule over a ... [more ▼]

We consider a stochastic version of the multi-product multi-level capacitated lotsizing and scheduling problem with sequence-dependent setups. A bottler needs to determine its production schedule over a finite horizon in order to satisfy a deterministic demand. The raw materials are supplied through two different sources: uncapacitated reserves of new bottles and the uncertain returns of used bottles. We present results for the single-item case. [less ▲]

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See detailFunctional screening of a metagenomic library from algal biofilms
Martin, Marjolaine ULiege

Conference (2013, February 08)

Macroalgae, and particularly their lignin-free polysaccharides, are increasingly used for their gelling and therapeutic properties and for the production of biofuels and renewable chemical compounds. To ... [more ▼]

Macroalgae, and particularly their lignin-free polysaccharides, are increasingly used for their gelling and therapeutic properties and for the production of biofuels and renewable chemical compounds. To extract, hydrolyze and purify this biomass, algae hydrolyzing enzymes are needed. Our work aims to identify and characterize algal biomass hydrolyzing enzymes expressed by microorganisms living on the surface of algae, by functional metagenomics. Therefore, a microbial DNA extraction method was developed to isolate the gDNA from the microorganisms of the brown algae Ascophyllum nodosum and a metagenomic library was constructed in Escherichia coli. The library was screened for diverse enzymatic activities (esterases, xylanases, cellulases, α-amylases, arabinanases, caseinases and β-glucosidases) on agar plates with specific enzymes substrates. Several new microbial enzymes (esterases, β-glucosidases, α-amylases and cellulases) were identified revealing the wealth of our library. Furthermore, those enzymes had less than 50% sequence identity with known protein sequences; meaning that our approach allows to identify new microbial enzymes expressed by uncultured microorganisms. Plate tests for medium-throughput screening of specific enzymes hydrolyzing algal polysaccharides (agarases, carrageenases and alginate lyases) are currently being developed. Our approach will probably allow us to identify new families of those ill-known enzymes, with particular enzymatic activities. [less ▲]

Detailed reference viewed: 238 (20 ULiège)
See detailTwo-stage stochastic integer programming models for strategic disaster preparedness
Döyen, Alper ULiege; Aras, Necati; Arda, Yasemin ULiege

Conference (2013, February 08)

We are interested in two distinct disaster management models which are modeled by two-stage stochastic integer programming. While the first model solution provides optimal post-disaster response related ... [more ▼]

We are interested in two distinct disaster management models which are modeled by two-stage stochastic integer programming. While the first model solution provides optimal post-disaster response related decisions and pre-disaster retrofitting decisions to minimize the total cost, in addition to the first model, the second model considers the recovery actions and the time of earthquake occurrence. In the models, retrofitting decisions are given for both buildings and bridges under a limited budget. Effective and efficient solution methods are proposed in the study. [less ▲]

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See detailLes infections respiratoires: méthodes de diagnostic au laboratoire.
HUYNEN, Pascale ULiege

Conference (2013, February 08)

Detailed reference viewed: 14 (1 ULiège)
See detail(Re)productive Traditions, Cultural Transmission and Egyptology
Gillen, Todd Jonathan ULiege

Conference (2013, February 08)

Detailed reference viewed: 23 (0 ULiège)
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Peer Reviewed
See detailMultiperiod vehicle loading with stochastic release dates
Pironet, Thierry ULiege

Conference (2013, February 08)

Detailed reference viewed: 9 (0 ULiège)
See detailBestraffing van ondernemingen: Een schot voor de boeg of in de roos? Theorie en praktijk
Franssen, Vanessa ULiege

Conference (2013, February 08)

Detailed reference viewed: 9 (0 ULiège)
Peer Reviewed
See detailOn-line flow cytometry profiling of Escherichia coli stress response
Brognaux, Alison ULiege; Han, Shanshan; Sorensen, Soren et al

Conference (2013, February 08)

Detailed reference viewed: 44 (10 ULiège)
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See detailGeochemistry and XRD to differentiate oolitic ironstone geological levels from Germany, Belgium and France and application to the archaeological artefacts
Salomon, Hélène ULiege; Goemaere, Eric; Mathis, François ULiege et al

Conference (2013, February 07)

Particle Induced X-ray Emission (PIXE) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) have largely demonstrated their capability to analyse trace elements for determining the ... [more ▼]

Particle Induced X-ray Emission (PIXE) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) have largely demonstrated their capability to analyse trace elements for determining the origin of archaeological materials. Trace elements can in fact be used as fingerprint of the geological origin and thus contribute to provenance investigations. This point is an important question for prehistoric studies, as it provides information on mobility, exchanges and interaction between groups of population. We present experimental PIXE configurations which allow to investigate prehistoric oolithic haematite, at the ppm level without any preparation or sampling. We compare the data obtained with two devices, namely AGLAE (Accélérateur Grand Louvre d'Analyse Elémentaire) in Paris and the cyclotron in the Centre Européen d'archéométrie in Liège and we determined the uncertainties of measures. The geological samples were compared in order to estimate de geochemical variability in stratigraphy and in width of oolithic haematite from the Ordovician in Caen region (France) and from the Devonian in Hesbaye (Belgium). These data were also compared to oolithic haematite used during Mesolithic and LBK (Early Neolithic) in both the regions. Furthermore we looked for mineralogical fingerprints by X-Ray Diffraction on disoriented powders. The mineralogical composition is ubiquitous and no discrimination between the stratigraphical layers was possible. [less ▲]

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See detailGeological record and sedimentology of the Palaeozoic oolitic ironstone deposits in Western Europe. Spatial relationships with the Linienbandkeramik settlements (LBK) in Belgium.
Goemaere, Eric; Dreesen, Roland; Katsch, A. et al

Conference (2013, February 07)

Mined since prehistoric times, oolitic ironstones (OIS) were a very important world source of iron from 1850 to 1945: hereafter they have been progressively replaced by the Precambrian Banded Iron ... [more ▼]

Mined since prehistoric times, oolitic ironstones (OIS) were a very important world source of iron from 1850 to 1945: hereafter they have been progressively replaced by the Precambrian Banded Iron- Formations (BIF). OIS are iron-rich sedimentary rocks bearing ferruginous ooids. They consist of at least 15% iron. In Western Europe, their overall depositional environment is that of a shallow shelf, most often located close to the transition from non-marine to marine environments. Their main age range is concentrated within the Ordovician through Devonian and the Jurassic through Paleogene. Proterozoic occurrences are known but these occur outside Europe. The host rocks of the ironstones are predominantly clastic, whereas the host sediment of the ferruginous ooids can be either clastic or carbonate or both. The OIS occur at the top of coarsening and shoaling upward cycles. They represent condensed deposits and transgressive system tracts. Numerous oolitic ironstone deposits are interpreted as tempestites or as intertidal deposits. It is generally agreed that ferruginous ooids formed in shallow marine water conditions, near the water-sediment interface, with repeated reworking of the sediment. Such an environment implies oxidizing conditions, the sedimentary iron being in the ferric state. The exact source of the iron is still a matter of discussion and speculation, just as the primary or secondary origin of the ferruginous ooids. Besides hematite (or goethite), also siderite, Fe-dolomite and berthierine/chamosite are present in the OIS as iron-bearing minerals. Due to weathering processes the carbonate matrix is often removed, the iron is released and oxidized, whereas the ferrous silicates are converted into ferric oxides or ferric hydroxides. Many old mining activities are based on occurrences of this weathered ore. The latter material has also strong staining properties. 1. Germany OIS are outcropping in the Eifel area. The latter is part of the Ardenno-Rhenish Massif and lies in the eastern extension of the Neufchateau Synclinorium, south of the Ardenne Anticlinorium (enclosing the Cambro-Ordovician Stavelot-Venn inlier). The general structure of the Eifel corresponds to an intensively folded and faulted synclinorium In the center of this synclinorium, outcrops of OIS occur on both flanks of successive synclines that are individually named (from the north to the south): the Sötenicher Mulde, the Blankenheimer Mulde the Rohrer Mulde, the Dollendorfer Mulde, the Ahrdorfer Mulde and the Hillesheimer Mulde. Two important stratigraphic levels with IOS are known and they coincide more or less with the Lower-Middle Devonian boundary (Uppermost Emsian- Lowermost Eifelian). These OIS represent excellent marker beds for geological mapping. 2. The Netherlands There is no outcrop of OIS in this country. 3. Belgium Oolitic iron ores were formed during different periods in Belgium: the Lochkovian (Lower Devonian, Dinant Synclinorium, restricted to the Belgian-French border), the Givetian (Middle Devonian, Dinant Synclinorium), the Frasnian (Upper Devonian, Dinant Synclinorium), the Famennian (Upper Devonian, Namur S., Dinant S. & Vesdre S.) and the Toarcian-Aalenian (Jurassic, Lorraine area, Paris Basin – called “minette ore”). The most important OIS level is the Lower Famennian one. It has been intensively mined until the middle of the 20th century, essentially in the Namur Synclinorium, between the cities of Namur and Huy. In this area, its important thickness (until 1.85m) and the number of layers triggered the development of an important economic activity. Outcrops were restricted to the tributaries of the Meuse River. The Famennian oolitic ironstone facies change from north to south by a gradual decrease in the number of layers, in their thickness, grain size, ooid concentration, clast size and iron content. They represent also excellent lithostratigraphical marker beds. The clay-dolomitic matrix is being progressively replaced by a calcitic cement. The other Devonian OIS levels are not of great economic importance, they were only mined locally, to supply smith’s working places. Due to surface mining, outcrops are now very rare, and often indicated by a light depression in the topography only. 4. Grand-Duchy of Luxembourg OIS are restricted to the Jurassic (Aalenian-Lower Bajocian) in the NW part of the Paris Basin. This essentially goethitic ore (“minette”) was intensively mined in the three adjacent country borders area (FR-BE-LU). No OIS levels in the Lower Devonian are outcropping in the northern part of the Grand Duchy. 5. France Numerous OIS layers are known in France at several stratigraphical levels, but a lot of them cannot be considered as a real ore. Paleozoic OIS belonging to the Armorican Massif were mined in the Normandy area (Urville Fm, Llanvirn, Middle Ordovician) and in the Bretagne area (Arenig, Lower Ordovician). In Normandy, OIS do outcrop inside several synclines (e.g. May and Urville Sy.), as one thick composite layer.  The spatial relationships of the different oolitic ironstone levels with the Linienbandkeramik settlements (LBK) in the studied area, will be presented. [less ▲]

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See detailPetrographical differentiation between Palaeozoic oolitic ironstones from France, Belgium and Germany and application to the provenance study of archaeological artefacts – preliminary results
Dreesen, Roland; Savary, Xavier; Goemaere, Eric et al

Conference (2013, February 07)

Samples of Palaeozoic oolitic ironstone beds susceptible of having being used as raw materials for Neolithic red ochres, have been petrographically investigated. The preliminary results of this first ... [more ▼]

Samples of Palaeozoic oolitic ironstone beds susceptible of having being used as raw materials for Neolithic red ochres, have been petrographically investigated. The preliminary results of this first comparative analysis are quite encouraging: microfacies differences have been observed between Ordovician oolitic ironstones from Normandy (France), late Upper Devonian oolitic ironstones from Belgium and uppermost Lower Devonian to lowermost Middle-Devonian (Emsian-Eifelian) oolitic ironstones from the Eifel area (Germany). Petrographical differentiation is based upon contrasting grain size, mineralogy (hematite/chlorite ratio) and typology of the ferruginous ooids, besides differences in mineralogy, diagenetic history and lithologic nature of the host sediments. Most conspicuous are differences in ferruginous ooid typology, including “true” concentric ooids, superficial ooids, algal oncoids and pseudo-ooids (ferruginized cortoids and rounded bioclasts). “Flax seed” or Clinton-type iron ores (rich in flattened ooids) and “fossil iron ores” (essentially composed of ferruginized bioclasts) can be identified as well as transitional or mixed types. Homogenous and well-sorted, often flattened and fine-grained ferruginous “true” ooids (flax seed ore) with alternating hematite and chlorite cortices in a sideritic- chloritic or fine siliciclastic matrix, are characteristic for the Ordovician (Llanvirn) oolitic ironstones of Normandy (basal part of the Urville Shales). Locally, weathered levels exist, enclosing limonitic (goethitic) crusts. Medium-sorted, fine-to coarse- grained ferruginous hematitic pseudo-ooids (ferruginized bioclasts) in a bioclastic limestone matrix (fossil ore) characterize the Lower-Middle Devonian boundary oolitic ironstone beds (Heisdorf and Lauch Formations, Eifel Synclines). Finally, well- to medium-sorted heterogenous, fine- to medium-grained, pure or mixed flax seed- and fossil ore-type hematitic oolitic ironstones in siliclastic and/ore carbonate matrices, characterize the Belgian Latest Upper Devonian (Famennian) ironstone deposits (Hodimont Formation, Famenne Shales Group). Several stratigraphic levels do exist within the Lower Famennian and basal part of the Upper Famennian in the Namur, Dinant and Vesdre Synclinoria, but the lowermost Famennian one is the only level that has been mined. Within some of the younger Famennian oolitic ironstone levels, proximal and distal facies can be distinguished on the basis of microfacies differences and mineralogy of the ferruginous pseudo-ooids. Only the proximal hematitic facies of the lowest stratigraphical oolitic ironstone level (level I) is supposed to have been used in prehistoric times for the manufacturing of ochre. Diagenetic sideritization and dolomitization, particle deformation as well as sulphide mineralizations, affect most of the studied oolitic ironstones. However, the intensity of these mineralizations varies strongly (even within the same deposit) and depends on local tectonics. A distinction can be made between the Emsian-Eifelian and Famennian fossil iron ores, based on the nature of the bioclasts and other ferruginzed components). Eifelian oolitic ironstones contain ferruginized crinoids, bryozoans, trilobites, brachiopods, goniatites besides ferruginized siliciclastic intraclasts, whereas the Famennian ones are dominated by ferruginous ooids and algal oncoids, mixed with ferruginized bioclasts including crinoids, bryozoans, brachiopods, ostracods, algae and incertae sedis, and locally intraclasts (ferruginized stromatolitic crusts). Distal facies contain slightly Fe-impregnated bioclasts only such as crinoid ossicles and display a higher chlorite/hematite ratio. Thin sections have been made in archeological objects (red ochre), allowing a first comparative petrographical analysis indicating their probable geological and geographical provenance. References Ph. Joseph, 1982. Le minerai de fer oolithique Ordovicien du Massif Armoricain: sédimentologie et paléogéographie. Thèse présentée à l’Ecole Nationale Supérieure des Mines de Paris. 325 p. R. Dreesen, 1989. Oolitic ironstones as event-stratigraphical marker beds within the Upper Devonian of the Ardenno-Rhenish Massif, in: Young, T.P. & Taylor, W.E.G. (eds), Phanerozoic Ironstones. Geological Society Special Publications, n°46, pp. 65-78 Rath, S., 2003. Die Erforschungsgeschichtede Eifel-Geologie. Ph.D. Dissertation, Rheinisch- Westfälische Technische Hochschule Aachen, 239 p. [less ▲]

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See detailAutomatic Aircraft Cargo Load Planning with Pick-up and Delivery
Lurkin, Virginie ULiege; Schyns, Michael ULiege

Conference (2013, February 07)

This research aims to develop a new mixed integer linear program to solve the containers assignment problem when pickup and deliveries are considered. Given a pool of ULDs and an aircraft with multiple ... [more ▼]

This research aims to develop a new mixed integer linear program to solve the containers assignment problem when pickup and deliveries are considered. Given a pool of ULDs and an aircraft with multiple destinations, we want to obtain a loading plan determining at which positions the ULDs must be assigned in order to minimize simultaneous the quantity of fuel consumed and the number of re-handles. The loading plan should also ensure a number of structural, safety and manoeuvrability constraints. The model has been tested on real instances and provides encouraging results. [less ▲]

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See detailOptimization model for empty container repositioning
Salmon, Frédéric ULiege; Limbourg, Sabine ULiege

Conference (2013, February 07)

Empty container management is a transportation issue relating to the imbalance of container demand and supply in various parts of the world. Hence the necessity for shippers to move empty containers to ... [more ▼]

Empty container management is a transportation issue relating to the imbalance of container demand and supply in various parts of the world. Hence the necessity for shippers to move empty containers to supply areas. The purpose of this research is to develop a decision support tool applying to intermodal freight transport. This project aims at minimizing the overall cost of empty container management in the hinterlands of the ports of Antwerp and Rotterdam. The proposed model is a two-stage stochastic network model which takes account of transit time between ports and terminals, shipping cost, the carrying capacity of the various modes of transport, the stochastic demand and supply of each terminal and port as well as other parameters such as substitution or holding costs. In addition, the proposed model considers the possibility of intermodality with road transportation. Along with the optimal solution, our experimental data should yield an understanding of the impact of costs on the repartition of ows and inventories [less ▲]

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See detailIntermodal network design for freight transportation in Belgium - location of rail/road and road/inland waterway terminals
Mostert, Martine ULiege; Limbourg, Sabine ULiege

Conference (2013, February 07)

In the recent years, growing concerns about environmental, societal and economic issues have emerged in the society. The improvement and the expansion of the multimodal network is one way of solving those ... [more ▼]

In the recent years, growing concerns about environmental, societal and economic issues have emerged in the society. The improvement and the expansion of the multimodal network is one way of solving those kinds of problems. The objective of this work is therefore the integration of inland waterway, rail and road transport into the linear modeling of intermodal terminal location problems, based on transportation costs functions which are nonlinear with the distance traveled. The model should also take into account the capacity constraints linked to the different modes of transport. [less ▲]

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See detailRenewed in Translation: The Persea Tree from Egypt to the Greeks
Caneva, Stefano ULiege

Conference (2013, February 07)

The paper investigates continuities and ruptures in the meaning and use of the sacred persea tree from Pharaonic to Graeco-Roman tradition, by focusing on a period from III cent. BC to late Antiquity.

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See detailApplications of the concept of Prevalence: Nowhere analytic functions and Multifractal analysis
Esser, Céline ULiege

Conference (2013, February 07)

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See detail(Re)productive Tradition in Ancient Egyptian
Winand, Jean ULiege

Conference (2013, February 06)

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See detailLes problèmes cutanés liés aux médicaments
GADISSEUR, Romy ULiege

Conference (2013, February 05)

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See detailApplications of the concept of prevalence: Nowhere analytic functions and multifractal analysis
Esser, Céline ULiege

Conference (2013, February 05)

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See detailNeuroimagerie et états de conscience altérée
VANHAUDENHUYSE, Audrey ULiege

Conference (2013, February 04)

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See detailComment les circuits « alternatifs » de consommation alimentaire s’intègrent-ils dans une dynamique durable, incluant dimensions sociales, économiques et environnementales? Le cas des GAC et du Commerce équitable.
Thys, Séverine ULiege

Conference (2013, February 01)

Cette contribution interroge l’existence d’un référentiel critique et argumentatif commun à des initiatives d’Economie Sociale. En utilisant l’appareillage théorique de la « sociologie des épreuves », les ... [more ▼]

Cette contribution interroge l’existence d’un référentiel critique et argumentatif commun à des initiatives d’Economie Sociale. En utilisant l’appareillage théorique de la « sociologie des épreuves », les propos de GACEURS et de bénévoles/salariés du commerce équitable seront analysés afin de voir si le concept de Développement Durable porte en lui un projet sociétal, un référentiel fédérateur, apte à mobiliser des consom’acteurs autour de revendications partagées. [less ▲]

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See detailRisk Taking of Executives under Different Incentive Contracts : Experimental Evidence
Lefebvre, Mathieu ULiege

Conference (2013, February 01)

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