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See detailNeuropathies proximales du membre supérieur
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailL'épaule un carrefour complexe
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailDiscussion de cas cliniques et atelier pratique
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailDevelopment and optimization of pegylated lipoplexes for vaginal application
Lechanteur, Anna ULg; Furst, Tania ULg; Kanber, Erdem et al

Conference (2014, October 04)

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See detailCognitive rehabilitation : Past, present and future.
Majerus, Steve ULg

Conference (2014, October 04)

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See detailEt si ce n'était pas un canal carpien
FERON, Frédéric ULg; WANG, François-Charles ULg

Conference (2014, October 04)

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See detailOblitérations. Contacts et frictions dans "A Humument" de Tom Phillips
Delville, Michel ULg; Belloi, Livio ULg

Conference (2014, October 03)

Cette intervention examine "A Humument" de Tom Phillips en termes de contacts et de frictions entre le texte-source (un roman victorien) et sa réinterprétation par l'auteur.

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See detailLe secret du juriste d'entreprise
Vandenbulke, Antoine ULg

Conference (2014, October 02)

Detailed reference viewed: 17 (3 ULg)
See detailLes biomarqueurs du remodelage osseux
CAVALIER, Etienne ULg

Conference (2014, October 02)

Detailed reference viewed: 6 (0 ULg)
See detailRational Design of a Safe and Efficacious Attenuated Recombinant Vaccine Against Cyprinid Herpesvirus 3 Using Prokaryotic Mutagenesis and In Vivo Imaging System
Boutier, Maxime ULg

Conference (2014, October 02)

Cyprinid herpesvirus 3 (CyHV-3) is the causative agent of a lethal disease in common and koi carp. Since its emergence, in the late 1990s, CyHV 3 has caused severe economic losses worldwide creating a ... [more ▼]

Cyprinid herpesvirus 3 (CyHV-3) is the causative agent of a lethal disease in common and koi carp. Since its emergence, in the late 1990s, CyHV 3 has caused severe economic losses worldwide creating a need for a safe and efficacious vaccine. With this goal in mind, recombinant strains deleted for single gene were produced using prokaryotic recombination technologies. While producing such a recombinant for ORF134, we unexpectedly obtained a clone deleted for ORF56 and ORF57 in addition to the expected deletion of ORF134. Interestingly, this triple deleted recombinant replicated efficiently in vitro, exhibited an attenuated profile and induced an immune protection against a lethal challenge in vivo. To determine the role of each deleted locus in the phenotype of the triple deleted recombinant, a series of recombinant were produced and tested in vivo. Firstly, to investigate the role of ORF134 deletion, a double ORF56-57 deleted recombinant and an independent triple ORF56-57-ORF134 deleted recombinant were produced. These experiments revealed that ORF134 deletion did contribute significantly neither to the attenuation nor to the immune protection observed for the triple deleted recombinant. Secondly, to determine the relative importance of ORF56 and ORF57 deletion in the attenuation observed, two single deleted recombinants were produced for ORF56 and ORF57. These experiments demonstrated that ORF57 deletion, in contrast to ORF56 deletion, correlates with an attenuated phenotype. Based on its safety-efficacy profile, the ORF56-57 double deleted recombinant was selected as a candidate vaccine. Complementary experiments were performed to further investigate the potential of this strain as a safe and efficacious attenuated recombinant vaccine. The results obtained can be summarized as follows: (i) In vivo imaging (IVIS) of vaccinated fish challenged with a wild type strain expressing luciferase as a reporter gene, suggested that vaccination induces a sterile immunity at the portal of entry. (ii) Study of viral tropism by qPCR, IVIS, and histopathological analyses, demonstrated that in comparison to the wild type parental strain, the vaccine strain replicates at lower level, at later time post-infection and for a shorter period of time. (iii) Transmission studies demonstrated that there is no detectable spread of the vaccine from freshly vaccinated fish to naive fish located immediately down stream of vaccinated fish (water sharing). All together, the results of the present study demonstrate the potential of ORF56-ORF57 double deleted CyHV-3 recombinant strain for safe and efficacious mass vaccination of carp. [less ▲]

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See detailKnowledge transfer from Belgian government to medical doctors
MORTELMANS, Katrien; REMMEN, Roy; BERKEIN, Philip et al

Conference (2014, October 02)

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See detailHTA d’origine endocrinienne : l’aide du laboratoire
LE GOFF, Caroline ULg

Conference (2014, October 01)

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See detailLes châteaux industriels dans le bassin liégeois : typologie et étude de cas
Destatte, Julien ULg; Peters, Arnaud ULg; Van Velthem, Lionel

Conference (2014, October 01)

Detailed reference viewed: 23 (3 ULg)
See detailNouveautés en allergologie. L'allergie moléculaire.
GADISSEUR, Romy ULg

Conference (2014, October 01)

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See detailIntegrating lexis, gesture and discourse in spatial descriptions
Lemmens, Maarten; Perrez, Julien ULg

Conference (2014, October 01)

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See detailOptimization of pAOX1 induction in a methanol/sorbitol co-feeding process in Pichia pastoris
Carly, F.; Niu, H.; Fickers, Patrick ULg

Conference (2014, October)

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See detailUtilisation des résidus de lavage des granulats de carrières dans l'élaborationde pièces céramiques (Région de Tamazouzt, Maroc)
El Boudour El Idrissi, Hicham ULg; Daoudi, Lahcen; El Ouahabi, Meriam ULg et al

Conference (2014, October)

Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans ... [more ▼]

Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans l’élaboration de ces produits est issue de résidus de lavage des carrières de granulats exploités le long des oueds. En plus de la qualité des produits et des rendements élevés, ce site donne un bon exemple de valorisation des résidus de lavage qui causent des problèmes pour l’environnement et pour les industriels. Nous avons caractérisé cette matière première afin d’en faire la promotion et d’encourager l’exploitation de tels matériaux dans le domaine de la céramique à l’échelle globale. Les résultats des analyses montrent que la pâte est constituée de 62% d’argiles, 23% de limons et 15% de sables ; l’indice de plasticité est de l’ordre de 16. Pour 27% d’humidité, le degré de retrait au séchage ne dépasse pas 6%. La minéralogie indique la présence de quartz (32%), plagioclase (20%), feldspaths potassiques (10%), calcite (3%) et argile (31%). Les minéraux argileux sont constitués d’illite (16%), de chlorite (7%), de kaolinite (4%) et de vermiculite (4%). La teneur en matière organique est de 4%. La composition chimique est surtout silico-alumineuse (64% de SiO2, 17% d’Al2O3). Les autres éléments majeurs dont la teneur est significative (> 1%) sont : Fe2O3 (8%), MgO (4%), K2O (3%), CaO (3%), Na2O (2%). Les pièces cuites à 1050°C présentent 2% de retrait, 13% de porosité à l’eau, la résistance mécanique à la compression et à la flexion est respectivement de 63 et 20 Mpa. L’analyse DRX des pièces cuites à 1050°C a montré l’apparition de géhlénite, anorthite, diopside et d’hématite. Ces résultats indiquent qu’en plus de l’utilisation locale dans la poterie décorative ces argiles pourraient être valorisées comme matériaux de construction vue leur caractère isolant (bonne porosité), résistance (bon comportement mécanique) et leur couleur rouge (présence de l’hématite). [less ▲]

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See detailUn laboratoire d’autoimmunité paperless : mythe ou réalité ?
LUTTERI, Laurence ULg

Conference (2014, October)

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See detailRole of the progesterone receptor in the development of sexual behavior in female mice
Desroziers, Elodie ULg; Brock, Olivier; Baum, M.J. et al

Conference (2014, October)

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See detailEvolution des populations de coccinelles indigènes et de l’espèce exotique, Harmonia axyridis Pallas, en Wallonie et en Région de Bruxelles-Capitale
Vandereycken, Axel ULg; Fassotte, Bérénice ULg; Durieux, Delphine ULg et al

Conference (2014, October)

Un inventaire des Coccinellidae provenant de la collection de l’unité d’Entomologie fonctionnelle et évolutive (ULg - Gembloux Agro-Bio Tech) a été réalisé sur une période s’étendant de 2001 à 2009. Cette ... [more ▼]

Un inventaire des Coccinellidae provenant de la collection de l’unité d’Entomologie fonctionnelle et évolutive (ULg - Gembloux Agro-Bio Tech) a été réalisé sur une période s’étendant de 2001 à 2009. Cette collection est essentiellement constituée de récoltes fournies par les étudiants de première Bachelier de Gembloux Agro-Bio Tech. A travers ce recensement, nous avons étudié l’évolution des espèces récoltées au sein de cette famille, en termes d’effectif relatif et de richesse spécifique. Notre étude s’est focalisée sur les données issues de Wallonie et de la Région de Bruxelles-Capitale, car trop peu de collectes ont été réalisées en Flandre. Parmi les individus identifiés, 27 espèces ont été observées, dont 21 appartiennent à la sous-famille des Coccinellinae, 2 à celle des Epilachninae et 4 à celle des Chilocorinae. La plupart des espèces sont communes à la Belgique. Cependant, Harmonia axyridis (Pallas 1773), espèce originaire du sud-est de l’Asie, a été introduite sur le territoire belge en 1997. Cette coccinelle exotique a fait son apparition dans les collectes de 2002 et son effectif ne cesse d’augmenter au fil des années prospectées. En parallèle à cette augmentation, une diminution de la richesse spécifique, ainsi que de l’effectif relatif d’Adalia bipunctata (L. 1758), de Propylea quatuordecimpunctata (L. 1758) et de Psyllobora vigintiduopunctata (L. 1758), est observée. [less ▲]

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See detailNegative polarity as a trigger for the development of modal meaning
Davidse, Kristin; Van linden, An; Brems, Lieselotte ULg

Conference (2014, October)

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See detailFiabilité et confiance (dans le lien filial et fraternel)
de Saint Georges, Marie-Christine; Haxhe, Stéphanie ULg

Conference (2014, October)

Comment restaurer de la fiabilité dans les liens vitaux, en particulier le lien enfant-parent, lorsque la confiance relationnelle a été atteinte?

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See detail« Quand l’Etat échoue à ramener l’ordre. Conflits d’héritage et conscience du droit à Cotonou »
Andreetta, Sophie ULg

Conference (2014, October)

Ces dernières années, le nombre de conflits d’héritage gérés par le tribunal de première instance de Cotonou a considérablement augmenté. Si nombreux sont ceux qui « saisissent l’Etat » pour « rétablir ... [more ▼]

Ces dernières années, le nombre de conflits d’héritage gérés par le tribunal de première instance de Cotonou a considérablement augmenté. Si nombreux sont ceux qui « saisissent l’Etat » pour « rétablir l’ordre » dans leur famille, les institutions judiciaires parviennent-elles à remplir leur mission ? Je m’intéresserai tout particulièrement à l’exécution des décisions de justice. Que se passe-t-il une fois la décision rendue ? Comment le processus d’exécution est-il approprié par les professionnels du droit et par les familles ? [less ▲]

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See detailPreparations for the use of Raman spectrometers on Mars
Malherbe, Cédric ULg; Ingley, Richard; Hutchinson, Ian B. et al

Conference (2014, October)

Raman spectroscopy has been selected as a non-destructive powerful analytical method for forthcoming planetary exploration. In the context of the upcoming ExoMars and NASA 2020 missions (developed by the ... [more ▼]

Raman spectroscopy has been selected as a non-destructive powerful analytical method for forthcoming planetary exploration. In the context of the upcoming ExoMars and NASA 2020 missions (developed by the European Space Agency, IKI Roscomos and NASA) analysis of the biological and geological terrestrial analogues using laboratory instrumentation is of great importance; especially testing the performance of flight-like operating modes and conditions on the feasibility of flight instruments meeting their science goals. Here we present a set of measurements of terrestrial analogues (among them desert varnishes) selected in preparation for in-situ Raman analysis on Mars. Laboratory instrumentation has been used to fully characterise the samples in addition to being operated in modes consistent with ExoMars RLS instrument flight designs, sample preparation and delivery. We discuss the performance of the spectrometers regarding the detection of the target signatures and their geological context. The impact of instrument operating modes and application of flight instrument sampling philosophy (i.e. spot size, grain size, number of target locations, sample preparation and delivery) on the signal intensity and the limits of detection are also discussed. [less ▲]

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See detailInvestigation of shear stress evolution during neotissue growth in a perfusion bioreactor using 3d multiphysics modeling
Guyot, Yann ULg; Papantoniou, Ioannis; Schrooten, Jan et al

Conference (2014, October)

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See detailMesozoic marine crises and ichthyosaur history: a non-direct relationship
Fischer, Valentin ULg

Conference (2014, October)

Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well ... [more ▼]

Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well understood among animals occupying lower trophic levels but their influence on top predators of that time, fishes and marine reptiles, remains unclear. The fossil record of marine reptiles is of fluctuating quality but thoroughly revised taxonomic and phylogenetic frameworks now allow assessment of the influence of past climatic and oceanic changes on these top predators, by quantifying their cladogenesis and extinction rates across selected intervals. Here, I focus on ichthyosaurs, a successful clade of marine reptiles that colonized marine ecosystems during most of the Mesozoic. The ichthyosaur record indicates relatively few severe turnovers and a non direct relationship with environmental drivers, notably anoxic events. New fossils from France reveal the middle-late Norian extinctions did not eradicate the clade of whale-sized shastasaurid ichthyosaurs; similarly, the severe early Toarcian anoxic event, the end-Jurassic climate changes and several Cretaceous anoxic events did not impacted ichthyosaurs significantly, at least at the suprageneric level. On the other hand, severe turnovers or extinctions occurred during the latest Triassic and the Cenomanian and are coincident with a number of profound environmental and biotic changes. This indicates that unique drivers fail to explain the turnover patterns in ichthyosaur evolutionary history. Notably, oceanic anoxic events only impacted ichthyosaurs during the end-Cenomanian and did so during a period of intense climatic and biological upheavals. These major crises in ichthyosaur history are seemingly protracted over several million years and are probably best explained by a conjunction of causes. This is part of a wider project that will incorporate data from other contemporaneous groups to shed a new light on the general turnover patterns among marine top predators of the Mesozoic and the influence of ancient environmental changes in shaping their biodiversity. [less ▲]

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See detailWP2: Drivers of change at sub-global and local scales
Gillet, Pauline ULg; Vermeulen, Cédric ULg; Boulaud, Anne-Laure et al

Conference (2014, October)

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See detailUne phéromone sexuelle chez la coccinelle asiatique, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)
Fassotte, Bérénice ULg; Fischer, Christophe ULg; Durieux, Delphine ULg et al

Conference (2014, October)

A ce jour, aucune phéromone sexuelle n’a pu être mise en évidence chez les Coccinellidae. Cependant, diverses études suggèrent que de telles molécules sont impliquées dans la communication sexuelle chez ... [more ▼]

A ce jour, aucune phéromone sexuelle n’a pu être mise en évidence chez les Coccinellidae. Cependant, diverses études suggèrent que de telles molécules sont impliquées dans la communication sexuelle chez les coccinelles. Afin de vérifier cette hypothèse, nous avons collecté les composés organiques volatils émis par la coccinelle asiatique, Harmonia axyridis (Pallas), en présence ou en absence de pucerons. En présence de pucerons, les femelles vierges présentent un « comportement d’appel » qui est notamment associé à l’émission d’une phéromone sexuelle volatile chez plusieurs espèces de Coléoptères. D’autre part, des tests éthologiques ont démontré que les femelles émettent des composés volatils qui attirent les mâles à distance. Enfin, les prélèvements ont été analysés par chromatographie en phase gazeuse couplée à la spectrométrie de masse. Les analyses ont mis en évidence cinq composés volatils spécifiques provenant des femelles, aucun d’entre eux n’étant émis pas les mâles. L’identification a révélé la présence de (–)-β-caryophyllène, de β-élémène, de méthyl-eugénol, d’α-humulène et d’α-bulnésène, exclusivement produits par les femelles nourries de pucerons et dont les quantités respectives augmentent progressivement au cours de la période de prélèvement. Les résultats confirment donc que les femelles H. axyridis produisent une phéromone sexuelle volatile. Ceux-ci devraient permettre de promouvoir le développement de méthodes de gestion plus efficaces afin de manipuler les mouvements de cette coccinelle invasive et de réduire les impacts négatifs qu’elle occasionne sur la biodiversité. [less ▲]

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See detail6-Years Experience of NBS for Hemoglobin Disorders using TMS
BOEMER, François ULg

Conference (2014, October)

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See detailModeling of the cyclic lipodepsipeptide Pseudodesmin A self-assembly through molecular dynamic simulations
Crowet, Jean-Marc ULg; Sinnaeve, Davy; Fehér, Krisztina et al

Conference (2014, September 30)

The self-assembly of short peptides into supramolecular structures represents an active field of research with potential applications, ranging from material sciences to medicine. Pseudodesmine A is a ... [more ▼]

The self-assembly of short peptides into supramolecular structures represents an active field of research with potential applications, ranging from material sciences to medicine. Pseudodesmine A is a cyclic lipodepsipeptide of nine residues which presents a moderate antibacterial activity and whose structure has been resolved by X-ray and NMR. In acetonitrile, Pseudodesmine A is monomeric while in chloroform, it has the same structure but assembles in a supramolecular complex. This structure could associate with membranes and be responsible for the biological activity of the peptide. Comparison of NMR data in the two solvents has given indications on the intermolecular contacts that arise in chloroform and a model for the self-association was proposed. To study in more details this assembly, molecular dynamics simulations have been carried on. The resultswere compared with detailed information given by NMR, regarding the dimensions of the assembly and the orientation of the individual peptide building blocks inside the supramolecular assembly. In acetonitrile, the simulations show that the peptide has transient interactions while in chloroform, interactions between monomers are always observed. In agreement with NMR, these interactions arise mainly between the backbone protons of the LEU1 and the GLN2, the GLN2 sidechain and the loop located on the opposite end of the monomer structure. From 10 simulations of dimerization, hydrogen bonds were followed and specific interaction patterns were identified regarding the hydrogen bonds formed. Peptide interactions are mainly described by 13 interaction patterns characterized by 2 to 4 hydrogen bonds. In dimers, the peptides can have a linear, a perpendicular or a side by side configuration. From the linear dimer, it is possible to reconstruct filaments and, by combining a linear and a lateral dimer, it is possible to build fibrils with multifilaments, as found in the NMR-derived model. Two self-consistent supramolecular models can be built from dimers and they present a very good correlation with NMR data regarding the supramolecular organization. Besides, the perpendicular dimer can gives peptide rings that can also explain the potential ability of this peptide to form ion pores in membranes. [less ▲]

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See detailInter-professional cooperation between family, occupational and social insurance physicians in managing long-term sickness absence
Mairiaux, Philippe ULg; Vanmeerbeek, Marc ULg; Schippers, Nathalie ULg et al

Conference (2014, September 30)

Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs ... [more ▼]

Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs): GPs deliver sick notes and treatment, SIPs control SA benefits and OPs strive to adapt work environments to workers’ remaining capacities. In practice however, there is little cooperation between the three physicians. In 2009, the Ministry of Employment commissioned a study to identify GP-OP-SIP cooperation channels in order to prevent long-term work disability. Methods The study involved two phases. 1) Researchers from the three groups agreed on 15 proposals to enhance cooperation: to establish a formal contact between GP, SIP and OP for patients with > 3 months SA (n=3) ; SIP decision to end SA benefit to be forwarded to the GP (n=2) ; work-related information to be provided by the OP to GP and/or SIP (n=4); website giving contact data of GPs, SIPs, and OPs (n=2) ; initial and continuous education focusing on inter-physician cooperation (n=3); electronic data exchange when dealing with long-term SA (n=1). 2) A Delphi study was conducted in 2012 to validate these proposals: 61 experts representing professional groups of physicians (GP, SIP, OP), patients, government, employers and labor unions were asked to participate. A 18-items questionnaire (the 15 proposals and 3 open questions) was used in a 2-round Delphi study. Proposals were accepted if 80% of experts agreed. For drafting the final proposals, the research team relied on a multidisciplinary expert group. Results Participation rate was 77% (47/61 experts) in round 1 and 7 out of the 15 proposals were accepted. During round 2, participation rate was 94% (44/47); 2 of the remaining proposals reached agreement level. Public authorities were thus advised to invest in a) promotion of pre-return to work visit with the OP for sick-listed patients; b) a website with OPs contact data; c) joint guidelines for return to work guidance; d) joint training of the 3 physician groups; 5) methods ensuring safe electronic information exchange. Conclusions The need for inter-physician cooperation in disability management may exceed individual goodwill and should best be organised by public authorities. The current study may be a first step in this process. [less ▲]

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See detailDie Rezeption Thibauts in Belgien und Frankreich
Gerkens, Jean-François ULg

Conference (2014, September 27)

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See detailDosage de la vitamine D: Point de vue du Biologiste
CAVALIER, Etienne ULg

Conference (2014, September 27)

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See detailDetection of non-concave and non-increasing spectra: Snu spaces revisited with wavelet leaders
Esser, Céline ULg

Conference (2014, September 26)

Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in ... [more ▼]

Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in most of the practical cases, but there exist heuristic methods, called multifractal formalisms, which allow to estimate this spectrum and which give satisfactory results in many situations. The Frisch-Parisi conjecture, classically used and based on Besov spaces, presents two disadvantages: it can only hold for spectra that are concave and it can only yield the increasing part of spectra. Concerning the first problem, the use of S spaces allows to deal with non-concave increasing spectra. Concerning the second problem, a generalization of the Frisch-Parisi conjecture obtained by replacing the role played by wavelet coefficients by wavelet leaders allows to recover the decreasing part of concave spectra. We present a combination of both approaches to define a new formalism derived from large deviations based on statistics of wavelet leaders. We also present the associated function space. [less ▲]

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See detailGenericity and classes of ultradifferentiable functions
Esser, Céline ULg

Conference (2014, September 26)

As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones ... [more ▼]

As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones may exist. A classical technique is to use the Baire category theorem and the notion of residuality. This notion is purely topological and does not give any information about the measure of the set of objects satisfying such a property. In this purpose, the notion of prevalence has been introduced. Moreover, one could also wonder whether large algebraic structures of such objects can be constructed. This question is formalized by the notion of lineability. The first objective of this talk is to go further into the study of nowhere analytic functions. It is known that the set of nowhere analytic functions is residual and lineable in C^infty([0, 1]). We prove that the set of nowhere analytic functions is also prevalent in this space. Those results of genericity are then generalized using Gevrey classes, which can be seen as intermediate between the space of analytic functions and the space of infinitely differentiable functions. We also study how far such results of genericity could be extended to spaces of ultradifferentiable functions, defined using weight sequences. [less ▲]

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See detailQuine : Translation as an Epistemological Tool
Smette, Bernard ULg

Conference (2014, September 26)

Translation has always been a central concern of the philosophy of language. However, it has received more attention over the last decades, as witnessed by the significant development of translation ... [more ▼]

Translation has always been a central concern of the philosophy of language. However, it has received more attention over the last decades, as witnessed by the significant development of translation studies and the interest shown in that topic by a range of first-rank philosophers such as Quine, Davidson, Kuhn, Michel Serres, etc. Quine’s work suggests that, although usually understood as a linguistic process, translation is also a process of an epistemological nature. This paper will focus on some epistemological issues of Quine’s thesis of the indeterminacy of translation. First I will stress that Quine’s use of radical translation is aimed at putting into question the theory of meaning on which empiricism up to him used to hinge. As I will show, resorting to translation provides Quine with a strong criticism of a notion underlying the epistemology of traditional empiricism, that is the notion of ‘‘meaning’’ as an objective entity. Secondly, I will point out that this criticism leads to an empiricism of the sort that is not committed to the traditional theory of meaning. I will show how Quine can hold on to an empiricist point of view while doing without the notion of ‘‘meaning’’ by giving a key role to the notions of ‘‘observation sentence’’ and ‘‘stimulus-meaning’’. Finally, I will emphasize the link between Quine’s translation thesis and two other indeterminacy theses (the underdeterminacy of theories by experience and ontological relativity). All these theses, I will argue, share a common structure which is based on Quine’s translation model. In the conclusion, I will show how the translating process can be applied to theories (as well as to their ontologies) with the help of what Quine calls a proxy function. [less ▲]

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See detailTexture and Stability of Sunflower Halva Produced from Different Particle Size Tahini
Mureșan, Vlad; Cuibus, Lucian; Olari, Anna et al

Conference (2014, September 26)

The aim of this work was to assess the influence of tahini particle size on sunflower halva texture ans stability.

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See detailEFFICACY and Characterization of THE LACTOPEROXIDASE SYSTEM, A NATURAL BIOLOGICAL PESTICIDE
Bafort, Françoise ULg; Perraudin, Jean-Paul; Jijakli, Haissam ULg

Conference (2014, September 26)

Detailed reference viewed: 20 (1 ULg)
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See detailAutofiction, socioanalyse et récit de soi : Le cas d'Edouard Louis / Eddy Bellegueule
Ledent, David ULg

Conference (2014, September 26)

Detailed reference viewed: 12 (0 ULg)
See detailBone marrow mesenchymal and neural crest-derived stem cells have distinct secretomes, which are both relevant for spinal cord injury therapy.
Neirinckx, Virginie ULg; Agirman, Gulistan ULg; Rogister, Bernard ULg et al

Conference (2014, September 25)

Objectives: Spinal cord injury (SCI) treatment represents a critical issue in clinical research and patient care. Stem cell-based replacement therapies have already been proposed worldwide, especially ... [more ▼]

Objectives: Spinal cord injury (SCI) treatment represents a critical issue in clinical research and patient care. Stem cell-based replacement therapies have already been proposed worldwide, especially studying stem cells from the adult bone marrow stroma. Previous studies focusing on those cells did not specifically consider their intrinsic embryonic heterogeneity, thus intermingling different stem cells subpopulations to treat experimental SCI or even injured patients. In this study, we decided to compare adult bone marrow neural crest-derived stem cells (NCSC) and mesenchymal stem cells (MSC), and highlight which of their specific properties could be relevant in therapeutic perspectives. Material and methods: In that purpose, we compared NCSC and MSC isolated from adult mouse bone marrow. We then compared the effects that both cell types could exert once grafted inside an injured spinal cord. Cells were injected into the spinal cord of mice that right after a spinal cord contusion at the T11-12 spinal level. Results: Both MSC and NCSC-injected mice recovered locomotion abilities faster than control mice (as assessed by BMS scoring). Additionally, we observed that after 28 days post-injury, the lesion volume tended to decrease in mice that received cell graft compared to control group. Interestingly, it appeared that MSC seemed to be able to modulate inflammation inside the lesion, more than NCSC. Indeed, MSC-graft increased early neutrophil and macrophage recruitment in the bloodstream and inside the spinal cord, and increased the number of arginase-1-expressing cells remaining in the spinal cord after 28 days. In parallel, we compared the secretome of both NCSC and MSC, and noticed some interesting differences: MSC secreted several chemokines reflecting possible immunomodulating properties, while NCSC secreted products might be able to enhance neurite outgrowth. Conclusions: Preliminary data showed that NCSC induced neuritogenesis on primary neurons in vitro. Altogether, those results should help to improve and optimize cell-based therapies parameters and/or to define precise and efficient pharmacological treatments for SCI patients. [less ▲]

Detailed reference viewed: 26 (5 ULg)
See detailDevant le forum de la perception interne. Sur les objets d’ordre supérieur III
Zincq, Aurélien ULg

Conference (2014, September 25)

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See detailWhat do we know about Lepilemur in Northwest Madagascar?
Wilmet, Leslie ULg; Vermeulen, Cédric ULg; Beudels Jamar, Roseline C. et al

Conference (2014, September 24)

Detailed reference viewed: 12 (3 ULg)
See detailAn ethnoprimatological approach of the human-macaque interactions at the Ubud Monkey Forest, Bali (Indonesia)
Brotcorne, Fany ULg; Fuentes, Agustin; Wandia, I Nengah et al

Conference (2014, September 24)

Macaque tourism, i.e. a tourist activity focusing on wild macaques as main attraction, is an example of the bourgeoning and diversified human-macaque interactions in Southeast Asia. Although both people ... [more ▼]

Macaque tourism, i.e. a tourist activity focusing on wild macaques as main attraction, is an example of the bourgeoning and diversified human-macaque interactions in Southeast Asia. Although both people and macaques can benefit from their interactions at tourist sites, this activity also raises several conservation and management issues which are essential to understand in order to promote a sustainable coexistence. Using an ethnoprimatological approach, we provide here an assessment of the effect of a long-term management regime at the very popular tourist Ubud Monkey Forest in Bali, Indonesia. Over a four-month period in 2013, we characterized the visitor-macaque interactions with ethological methods and we compared our data with those collected 12 years earlier by Fuentes and colleagues. In parallel, we conducted a questionnaire survey, interviewing 99 Balinese people to assess their attitudes towards macaques and the Monkey Forest. Our results confirmed that the management efforts to reduce the aggressiveness of macaques towards visitors have been effective. Indeed, we observed a considerable reduction of the frequency and intensity of agonistic interspecies interactions. However, the interactions between macaques and visitors frequently involved close physical contact, such as during provisioning. Men on the human side, and adult or subadult males on the macaque side, were the groups the most frequently involved in these types of interaction. A reinforcement of the management practices limiting close interspecies contact interactions by targeting the most exposed groups, is therefore necessary in order to reduce the risk of pathogen cross-species transmission. Our questionnaire survey revealed globally a high level of tolerance of local people towards macaques in Ubud. These positive attitudes were determined by the economic and cultural benefits derived from the macaque presence and tourism activity, as far as they compensate for the nuisances caused by macaques. Crop raiding in cultivated fields surrounding the Monkey Forest was still a source of tension which would require further management efforts including the development of open buffer zones. [less ▲]

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See detailOdour measurement networks: e-noses and emission data
Romain, Anne-Claude ULg

Conference (2014, September 23)

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See detailDe l’importance des échelles dyadiques dans les espaces Snu
Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Conference (2014, September 23)

Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres ... [more ▼]

Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres formalismes, basés sur les coefficients d'ondelettes, ont été introduits (ex WLM). Cependant, de part leurs natures, ces méthodes ne peuvent détecter que des spectres concaves. En 2004, Jaffard introduit les espaces Snu pour palier à ce problème. Ces espaces sont inclus dans une intersection d'espaces de Besov. Dans cet exposé, je présente une généralisation des espaces Snu. Ceux-ci sont mis en relation avec les espaces de Besov généralisés et une mise en pratique est présentée. [less ▲]

Detailed reference viewed: 25 (7 ULg)
See detailObjets réels et objets idéaux. Sur les objets d’ordre supérieur II
Zincq, Aurélien ULg

Conference (2014, September 23)

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See detailBridging the gap from Academia to business : how companies can help to bridge the gap ?
Morant, Michel ULg

Conference (2014, September 23)

The contribution describes how large companies can help technology spin offs to get on the market, by explaining some examples form ULg spin off portfolio

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See detailComplexions et relations. Sur les objets d’ordre supérieur I
Zincq, Aurélien ULg

Conference (2014, September 22)

Detailed reference viewed: 13 (1 ULg)
See detailSex determinism in Fish - the Belgian team case studies
Rougeot, Carole ULg; Gennotte, Vincent ULg; Santi, Saïdou ULg et al

Conference (2014, September 22)

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See detailFonction de Riemann généralisée
Simons, Laurent ULg; Bastin, Françoise ULg; Nicolay, Samuel ULg

Conference (2014, September 22)

Dans cet exposé, nous étudions la régularité de la fonction de Riemann généralisée~$R_{\alpha,\beta}$ (avec $\alpha>1$ et $\beta>0$) définie par \[ R_{\alpha,\beta}(x)=\sum_{n=1}^{+\infty}\frac{\sin(\pi n ... [more ▼]

Dans cet exposé, nous étudions la régularité de la fonction de Riemann généralisée~$R_{\alpha,\beta}$ (avec $\alpha>1$ et $\beta>0$) définie par \[ R_{\alpha,\beta}(x)=\sum_{n=1}^{+\infty}\frac{\sin(\pi n^\beta x)}{n^\alpha},\quad x\in\R. \] En particulier, nous déterminons son exposant de Hölder uniforme. Pour terminer, nous analysons le comportement de~$R_{\alpha,\beta}$ lorsque le paramètre $\alpha$ ou $\beta$ tend vers l'infini. Cet exposé est basé sur un travail en collaboration avec F. Bastin et S. Nicolay. [less ▲]

Detailed reference viewed: 21 (4 ULg)
See detailLe dosage des antimycosiques azolés dans la lutte contre les mycoses invasives
MISTRETTA, Virginie ULg

Conference (2014, September 20)

Detailed reference viewed: 9 (2 ULg)
See detailFractures of proximal tibia: general principles
KURTH, William ULg

Conference (2014, September 20)

Detailed reference viewed: 17 (3 ULg)
Peer Reviewed
See detailAtteggiamenti nei confronti delle coppie e dei genitori gay e lesbiche: un confronto tra Italia e Belgio
Ioverno, Salvatore; Nardelli, Nicola; Baiocco, Roberto et al

Conference (2014, September 19)

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See detailEndocrine therapy resistance
JERUSALEM, Guy ULg

Conference (2014, September 19)

Detailed reference viewed: 6 (0 ULg)
See detailScience and Technology into Sports: The Flemish Sports Compass
Van Oudheusden, Michiel ULg

Conference (2014, September 19)

Sports are increasingly shaped by science and technology. Sportspersons now routinely operate in an environment consisting of devices, data flows, laboratories, and scientists. While governments, research ... [more ▼]

Sports are increasingly shaped by science and technology. Sportspersons now routinely operate in an environment consisting of devices, data flows, laboratories, and scientists. While governments, research industries, and many scientists across the world promote the integration of science and technology into sports as a means of inspiring innovation in sports, how this integration is achieved has not been systematically investigated. To remedy this shortcoming in science and technology studies (STS) and to grasp how science, technology, and sports are mutually attuned in everyday situations, this paper examines a sociotechnical device developed by scientists in Flanders (Belgium) popularly known as the ‘sports compass’ (sportkinelab.be/sportkompas). As the sports compass is designed to detect and develop sports talent in young children through standardized physical trials, it is used in the Flemish sports field. Drawing on ethnographic methods and on preliminary interviews with sports compass developers and users (scientists, children, parents), the paper argues that the compass’s solidity as a scientific conduit for talent is disrupted by the multiple social aims it serves (e.g. sports participation, striving for excellence) and the multiple expectations it elicits. Accordingly, multiple solidarities and shifting alliances can be discerned between technology developments and uses, devices and humans, and between research institutes, schools, and sports organizations. The paper’s findings serve to open a discussion both on the meaning and viability of talent detection among children and sportspersons, and on sports and innovation policies designed to render sports more scientific and technological. [less ▲]

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See detailWhen morphometrics meets genetics: the case of the hazel dormouse, Muscardinus avellanarius
Mouton, Alice ULg; Renaud, Sabrina; Michaux, Johan ULg

Conference (2014, September 19)

Detailed reference viewed: 22 (4 ULg)
See detailSynthesis of well-defined ethylene-based copolymers: on track using organometallic-mediated radical polymerization
Debuigne, Antoine ULg; Kermagoret, Anthony ULg; Jérôme, Christine ULg et al

Conference (2014, September 19)

Organometallic-Mediated Radical Polymerization (OMRP)1 has received renewed interest in recent years since proving its efficiency for non-activated monomers like vinylacetate (VAc), N-vinylamides, etc ... [more ▼]

Organometallic-Mediated Radical Polymerization (OMRP)1 has received renewed interest in recent years since proving its efficiency for non-activated monomers like vinylacetate (VAc), N-vinylamides, etc. Nevertheless, important mechanistic questions and challenges remained. A major goal in the field of controlled radical polymerization today consists in the design of well-defined ethylene containing (co)polymers. A recent mechanistic study on the impact of head-to-head addition on the course of the VAc polymerization by OMRP provided a strong incentive to evaluate the copolymerization of VAc with ethylene by this technique. Indeed, the latter revealed that dormant chains resulting from inverted head-to-head additions in the VAc polymerization, which mimics a terminal ethylene-cobalt moiety, reactivates at a similar rate compared to the ones resulting from the regular head-to-tail addition. As a result, well-defined statistical and block-like ethylene-based copolymers were prepared. These achievements represent an important step towards a versatile synthetic platform for polyolefine-based materials. [less ▲]

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See detailExplicit similarities and expected variabilities: the Initial Upper Paleolithic in Northeast Asia
Zwyns, N.; Teyssandier, N.; Izuho, M. et al

Conference (2014, September 19)

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See detailFertility and pregnancy after adjuvant therapy
JERUSALEM, Guy ULg

Conference (2014, September 19)

Detailed reference viewed: 10 (4 ULg)
See detailL’emblématique de Louise de Savoie
Fagnart, Laure ULg; Girault, Pierre-Gilles

Conference (2014, September 19)

Durant cette communication, à la suite des travaux d'Anne-Marie Lecocq (1987), nous sommes revenus sur le discours héraldique de la comtesse et duchesse d'Angoulême, Louise de Savoie, l'influente mère de ... [more ▼]

Durant cette communication, à la suite des travaux d'Anne-Marie Lecocq (1987), nous sommes revenus sur le discours héraldique de la comtesse et duchesse d'Angoulême, Louise de Savoie, l'influente mère de François Ier. Nous avons présenté et explicité ses devises favorites, à savoir la cordelière, qui évoque autant le nœud de Savoie que la cordelière franciscaine, le vol, sans doute choisi puisque l’aile évoque le L de Louise par homophonie, le bouquet de lis ou le cygne « navré », mais aussi les écus et les monogrammes qui lui sont associés et qui ponctuent enluminures, tapisseries, bas-reliefs et éléments sculptés de l’architecture. Notre intention a été de montrer d’une part comment Louise de Savoie manifeste, par l’intermédiaire de ces signes emblématiques, son identité et son pouvoir, d’autre part comment elle construit, par leur biais, un patrimoine, mental, susceptible de renforcer son clan et ses héritiers. [less ▲]

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See detailLa réception de la littérature humaniste italienne en Brabant au XVe siècle
Adam, Renaud ULg

Conference (2014, September 19)

Parmi les nombreuses pistes qui permettent de mesurer la pénétration de la Renaissance italienne dans les Pays-Bas, figure l’étude de la présence d’ouvrages rédigés par des humanistes italiens dans des ... [more ▼]

Parmi les nombreuses pistes qui permettent de mesurer la pénétration de la Renaissance italienne dans les Pays-Bas, figure l’étude de la présence d’ouvrages rédigés par des humanistes italiens dans des bibliothèques, qu’elles soient privées ou institutionnelles. L’espace brabançon du XVe siècle, eu égard à sa richesse documentaire, a été retenu comme précieux indicateur témoignant de l’impact de ce mouvement culturel qu'est l'humanisme. [less ▲]

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See detailTests de laboratoire en immunogénicité
LUTTERI, Laurence ULg

Conference (2014, September 18)

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See detailL'âgisme en oncogériatrie
Schroyen, Sarah ULg; Missotten, Pierre ULg; JERUSALEM, Guy ULg et al

Conference (2014, September 18)

Introduction (800 caractères): Le cancer est un problème de santé majeur dont l’âge constitue un facteur de risque avéré. Paradoxalement, les personnes âgées souffrant d’un cancer sont souvent sous ... [more ▼]

Introduction (800 caractères): Le cancer est un problème de santé majeur dont l’âge constitue un facteur de risque avéré. Paradoxalement, les personnes âgées souffrant d’un cancer sont souvent sous-traitées comparativement à des patients plus jeunes : à situation clinique équivalente, des futurs médecins recommandent moins fréquemment une reconstruction mammaire (Madan et al., 2004) et des médecins recommandent moins souvent une chimiothérapie (Protière et al., 2010) chez les personnes âgées par rapport aux jeunes. Un élément d’explication avancé par les auteurs est la stigmatisation liée à l’âge (c.à.d. nos stéréotypes liés à l’âge, et donc l’âgisme), bien qu’elle n’ait pas été analysée dans ces études. Dès lors, le lien entre la vision de l’âge et les recommandations cliniques constitue l’objectif de notre étude. Méthodologie (1500 caractères) : Nous avons interrogé 76 infirmiers (-ères) travaillant en oncologie et étant en contact régulier avec des patients âgés (67 femmes, 9 hommes, M âge = 33,88 ans). Il leur a été proposé de donner leur avis sur quatre fiches cliniques et de compléter deux questionnaires. La première fiche clinique concernait une nouvelle immunothérapie contre le cancer du poumon. A sa lecture, il était demandé aux infirmiers de noter, sur une échelle de 1 à 7, dans quelle mesure ils recommanderaient à leur patient (40 vs 70 ans) de suivre ce traitement expérimental. Les 3 autres fiches cliniques concernaient une patiente en bon état général atteinte d’un cancer du sein et ayant été traité par mastectomie. Les paramètres cliniques étaient strictement équivalents dans les 3 cas : seul l’âge de la patiente changeait (35, 55 ou 75 ans). Pour chaque fiche, les infirmiers devaient noter sur une échelle de 1 à 7 à quel point ils encourageraient le patient à suivre un traitement chimiothérapeutique et à demander une reconstruction mammaire Les infirmiers étaient également interrogés sur leur vision de l’âge de manière explicite via un questionnaire (FSA-R ; Boudjemad & Gana, 2009) et de manière implicite sur base des 5 premiers mots qui leur venaient à l’esprit lorsqu’ils pensaient à une personne âgée (informations récoltées au sein du questionnaire anamnestique global). Résultats (1500 caractères): Concernant le traitement expérimental, sa recommandation est moins fréquente pour une personne de 70 ans comparativement à une personne de 40 ans (p<.001). Cette moindre recommandation est associée à une tendance à citer plus de mots négatifs relatifs à la personne âgée (p =.09). Aucun résultat n’a été trouvé en lien avec la mesure explicite de l’âgisme. De plus, le personnel soignant recommande moins fréquemment une chimiothérapie pour une personne de 75 ans comparativement aux personnes de 55 et 35 ans (p<.001). Ce résultat ne semble pas influencer par la vision de l’âge du personnel soignant. Au niveau de la reconstruction mammaire, une différence est visible dès 55 ans : la reconstruction mammaire est moins recommandée pour une personne de cet âge par rapport à une personne de 35 ans (p=.02). Elle l’est encore moins pour une personne de 75 ans comparativement à une personne de 55 ans (p<.001). De plus, la différence de recommandation entre une personne de 75 et 35 ans semble être influencée par la vision de l’âge du personnel (mesurée par le test du FSA-R) : une vision plus négative est associée à un encouragement moins fréquent pour une personne de 75 ans comparativement à une personne de 35 ans (p = .01). Nous n’avons pas trouvé de lien avec la mesure implicite de l’âgisme. Conclusion (800 caractères): Nos données confirment que les recommandations cliniques telles qu’une reconstruction mammaire ou une chimiothérapie sont moins fréquente chez les personnes âgées que chez les jeunes. De plus, nos résultats montrent qu’une vision négative de l’âge est associée à une moindre propension à proposer une reconstruction mammaire. A l’inverse, la vision de l’âge ne semble pas influencer l’encouragement pour un traitement chimiothérapeutique : des attitudes âgistes sont observées même quand le personnel a une vision positive de l’âge. Ces résultats doivent cependant être confirmés par d’autres études notamment menées auprès d’autres professionnels en oncologie gériatrique. Lors de celles-ci, l’ajout d’autres mesures implicites de l’âgisme nous paraitrait intéressant. [less ▲]

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See detailHuman cortical excitability depends on time spent awake and circadian phase
Ly, Julien ULg; Chellappa, Sarah Laxhmi ULg; Gaggioni, Giulia ULg et al

Conference (2014, September 17)

At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking ... [more ▼]

At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking period. But what’s happen at the cortical cerebral level? We used a novel technique coupling transcranial magnetic stimulation with electroencephalography (TMS/EEG) to assess the influence of time spent awake and circadian phasis on human cortical excitability. Twenty-two healthy young men underwent 8 TMS/EEG sessions during a 28 hour sleep deprivation protocole. We found that cortical excitability depends on both time spent awake and circadian phasis. [less ▲]

Detailed reference viewed: 33 (11 ULg)
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See detailHuman cortical excitability depends on time awake and circadian phase
Ly, Julien ULg; Chellappa, Sarah Laxhmi ULg; Gaggioni, Giulia ULg et al

Conference (2014, September 17)

At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking ... [more ▼]

At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking period. But what’s happen at the cortical cerebral level? We used a novel technique coupling transcranial magnetic stimulation with electroencephalography (TMS/EEG) to assess the influence of time spent awake and circadian phasis on human cortical excitability. Twenty-two healthy young men underwent 8 TMS/EEG sessions during a 28 hour sleep deprivation protocole. We found that cortical excitability depends on both time spent awake and circadian phasis. [less ▲]

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See detailDynamic modeling and control strategy analysis of a micro-scale CSP plant coupled with a thermocline system for power generation
Dickes, Rémi ULg; Desideri, Adriano ULg; Bell, Ian ULg et al

Conference (2014, September 17)

Concentrated solar power systems are characterized by strong transients and require proper control guidelines to operate efficiently. In this context, a dynamic model of a 5 kWe solar ORC system is ... [more ▼]

Concentrated solar power systems are characterized by strong transients and require proper control guidelines to operate efficiently. In this context, a dynamic model of a 5 kWe solar ORC system is developed in the Modelica language to investigate the possible advantages of coupling a concentrating solar power system with a thermocline packed-bed storage. The models of the solar field, the thermocline storage and the ORC unit are described and integrated in the open-source ThermoCycle library. A first regulation strategy is proposed and implemented into a controller unit. Results of a three-day simulation using real meteorological data are finally analyzed and discussed. [less ▲]

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See detailNuclear Waste Management in Belgium: the place(less) of public participation
Parotte, Céline ULg

Conference (2014, September 17)

This presentation highlights the last reflections of the author on NWM in Belgium. It focuses on the new governance practices in Belgian nuclear waste management (NWM) from its ‘participatory turn’ in the ... [more ▼]

This presentation highlights the last reflections of the author on NWM in Belgium. It focuses on the new governance practices in Belgian nuclear waste management (NWM) from its ‘participatory turn’ in the late 1990s. Rather than praising (or rejecting) participation versus expert analysis, we make use of a theoretical and analytical framework in which the important dynamics for the analysis are ‘opening up’ and ‘closing down’ technological appraisals and commitments. Even though NWM agencies often plea for an integrative approach between experts analysis and participation, in practice this reveals itself rather complicated as both exercises are often kept separate. We address this separation and its consequences and we find that societal concerns remain subsumed in the technical options which have long been favoured by the Belgian agency. This taming of uncertainty may come at a high price, if it systematically reduces the scope of alternative options for governance intervention or if societal consultations ultimately appear like an instrument of legitimation of already-taken decisions. [less ▲]

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See detailSFX Knowledge Base Advisory Board (KBAB): goals and achievements after one year
Renaville, François ULg; Needleman, Mark

Conference (2014, September 16)

Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge ... [more ▼]

Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge Base by reviewing the quality assurance policies and processes together with Ex Libris. During its first year, the group identified several issues in order to improve the CKB quality. They shared them with Ex Libris which agreed to work on or to take a look at some. This session will explain how KBAB has been working, and present some of the issues and the improvements brought by Ex Libris. [less ▲]

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See detailScriptorium, a retro-cataloguing tool to easily and quickly encode older book items
Renaville, François ULg; Danhieux, Sylvain ULg

Conference (2014, September 16)

The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and ... [more ▼]

The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and cataloguing these according usual standards and norms would certainly take decades. To decrease the cost of treatments and increase the number of catalogued volumes, the Library developed a light PHP/MySQL application, Scriptorium, that enables non-catalogers (mostly students) to quickly encode the books (ca 3 min. per item) by providing the most essential information. References are then daily exported in MarcXML to the ILS. Scriptorium has been developed to permit to easily create new independent instances for different parallel retro-cataloguing projects and also to be used by other libraries. [less ▲]

Detailed reference viewed: 255 (27 ULg)
See detailLes effets de la retraite sur la mémoire
Adam, Stéphane ULg

Conference (2014, September 16)

Detailed reference viewed: 29 (2 ULg)
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See detailCrystallization behaviour of binary fat blends containing shea stearin as hard fat
Danthine, Sabine ULg; Delatte, S; Blecker, Christophe ULg et al

Conference (2014, September 15)

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See detailDevelopping a physically based groundwater vulnerability concept in a DPSIR framework
Beaujean, Jean ULg; Brouyère, Serge ULg; Lemieux, Jean-Michel et al

Conference (2014, September 15)

A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many ... [more ▼]

A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many scientific authors agree nowadays that ‘physically based’ methods must be preferred to traditional approaches based on empirical overlay and index methods where physical attributes are often mixed with implicitly embedded conventional priorities. Results from one or another of these last methods can consequently be very dissimilar for a given case study and decision makers are losing confidence in these tools. A methodology is proposed to reframe the groundwater vulnerability assessment in a Pressure-State-Impact causal chain that is familiar to decision makers. The DPSIR framework, for describing interactions between society and the environment, defines a chain of Drivers that exert Pressures on the State of a given resource, such as water, which then generates an Impact that will require an appropriate Response (Kristensen, 2004). The concept of groundwater vulnerability assessment considered here is based on the calculation of sensitivity coefficients for a user-defined groundwater state for which several physically-based indicators are proposed. These sensitivity coefficients reflect the easiness with which the groundwater state transmits pressures into impacts. They are grouped into a vulnerability matrix of pressures and impacts that quantify vulnerability for every combination of causal links identified in the DPSIR chain. For that reason, the sensitivity coefficients are converted to vulnerability, using the concept of ‘falling below a given threshold’, which is commonly used in socioeconomic sciences (Luers et al. 2003). Outside the careful selection of the sensitivity analysis method that can significantly influence the computational effort (Beaujean et al., 2013), emphasis will be given to the illustration of the general methodology on a simple case (of an alluvial aquifer with concerns related to water supply) demonstrating the potential use of this general and physically based vulnerability assessment method. While the methodology is general, the choice of causal chains has to be made prior to the calculation. The vulnerability is also related to a damaged state and is related to the ‘distance’ between the current state and a given threshold. This choice is arbitrary such that the vulnerability is sensitive to the choice of the threshold. The framework is general and, when applied to water, can include states that are not limited to quality such as, for example, water quantity and availability. [less ▲]

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See detailIntegrated modelling and uncertainty analysis for assessment of climate change effects on groundwater resource
Goderniaux, Pascal; Wildemeersch, Samuel ULg; Dassargues, Alain ULg

Conference (2014, September 15)

Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is ... [more ▼]

Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is required to help water managers to plan for future changes. For example, most of studies provide projections for a stationary climate representative of the end of the century, although information is demanded for the near-future. A sophisticated transient weather generator (WG) in combination with an integrated surface-subsurface hydrological model (HydroGeoSphere) are used for producing a stochastic generation of large numbers of equiprobable climatic time series, representing transient climate change, and assess impacts on groundwater resources in a probabilistic way. This new methodology is applied for the unconfined chalky aquifer of Hesbaye (Geer basin in Belgium). The following uncertainty sources are studied : (1) the uncertainty linked to the calibration of the hydrological model, using 'UCODE_2005' (Poeter et al., 2005); (2) the uncertainty linked to the global and regional climatic models (GCMs and RCMs), by using a multi-model ensemble; (3) the uncertainty linked to the natural variability of the weather, by using stochastic climate change scenarios. 30 equiprobable climate change scenarios from 2010 to 2085 have been generated for each of 6 different RCMs. Results show that although the 95% confidence intervals calculated around projected groundwater levels remain large, the climate change signal becomes stronger than that of natural climate variability by 2085. Additionally, the WG ability to simulate transient climate change enabled the assessment of the likely timescale and associated uncertainty of a specific impact. This methodology constitutes a real improvement in the field of groundwater projections under climate change conditions as it enables water managers to analyse risks and take decisions with full knowledge of projected impact and their degree of confidence. [less ▲]

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See detailDer Einfluss der Historischen Rechtsschule auf Belgien
Gerkens, Jean-François ULg

Conference (2014, September 12)

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See detailJupiter’s magnetopause: A search for wave and reconnection signatures
Bonfond, Bertrand ULg; Kivelson, M. G.; Khurana, K. K. et al

Conference (2014, September 12)

Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and ... [more ▼]

Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and the magnetosphere. The relative importance of large scale Dungey reconnection and viscous interaction (including small-scale intermittent reconnection associated with Kelvin-Helmholtz vortices) are expected to be different at Jupiter compared to the Earth’s case. Such differences would be due to the combination of a) a weaker solar wind pressure and Alfvén velocity as the distance to the Sun increases, b) a high-β plasma sheet, originating from Io’s outgassing, which inflates the Jovian magnetosphere, c) the rapid rotation of the planet relative to its size (e.g. Desroche et al. 2012). Here we analyse the signatures of wave activity and reconnection on the magnetopause of Jupiter, based on magnetic field and energetic particle measurements from the successive spacecraft that explored the Jovian system. Up to now, 7 spacecraft equipped with a magnetometer have crossed the Jovian magnetopause: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Ulysses, Galileo and Cassini. We make use of several normal direction finding techniques, such as the Minimum Variance Analysis, in order to identify waves and Kelvin-Helmholtz vortices. As far as the reconnection is concerned, small scale signatures of flux-tube events (FTEs) had been identified by Walker and Russell (1985), based on a limited data-set from the Pioneers’ and Voyagers’ fly-bys. Here we will extend this search to the extensive dataset from all the missions that explored Jupiter’s system. [less ▲]

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See detailVenus III book: aeronomy of the upper atmosphere
Gérard, Jean-Claude ULg; Bougher, Stephen; Drossart, Pierre et al

Conference (2014, September 12)

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See detailThe temptation of violence : which effects of feelings of discrimiation and victimisation ?
Gavray, Claire ULg

Conference (2014, September 11)

A lack of personal and social recognition and negative interactions with social institutions and relations influence negatively youth's behaviours

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