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See detailL'ambivalence de la bibliothèque: l'érudition au XVIIe siècle
Decoster, Sara ULg

Conference (2014, October 22)

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See detailArchitectures implicites, pouvoirs invisibles : le libertinage érudit
Decoster, Sara ULg

Conference (2014, October 20)

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See detailInfluence of Morphine on the Rabbit Gastrointestinal Tract
Deflers, Hélène ULg; Bolen, Géraldine ULg; Gandar, Frederic ULg et al

Conference (2014, October 20)

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See detailAdvances in the synthesis of degradable polymers for biomedical applications
Lecomte, Philippe ULg

Conference (2014, October 20)

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See detailThe Airline Container Loading Problem with Pickup and Delivery
Lurkin, Virginie ULg; Schyns, Michael ULg

Conference (2014, October 19)

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at ... [more ▼]

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at intermediate airports, this problem is simultaneously a weight and balance problem and a sequencing problem. Our objective is to minimize fuel and handling operations costs. This problem is shown to be NP-hard. We resort to a mixed integer linear program. On the basis of a professional partner's real-world data, TNT Airways, we perform numerical experiments using a standard B&C library. This approach yields better solutions than traditional manual planning, which results in substantial cost savings. [less ▲]

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See detailLien entre représentation du vieillissement chez le personnel de MR/MRS et la qualité de vie de résidents déments: Intérêt de l’enquête FIH
Missotten, Pierre ULg

Conference (2014, October 17)

A l’heure actuelle, la vision prégnante du vieillissement est négative, teintée des phénomènes d’âgisme et de jeunisme. Cette vision est objectivée dans diverses enquêtes récentes (ex : l’Eurobaromètre ... [more ▼]

A l’heure actuelle, la vision prégnante du vieillissement est négative, teintée des phénomènes d’âgisme et de jeunisme. Cette vision est objectivée dans diverses enquêtes récentes (ex : l’Eurobaromètre des statistiques de discrimination en Europe) qui soulignent que le motif de discrimination le plus souvent cité en Europe est l’âge (correspondant ici au fait d’avoir plus de 55 ans ; 4 % en 2012, 6 % en 2009), suivi seulement par la race (3 %). Si la personne vieillissante est déjà stigmatisée en général, il n’est pas étonnant de constater que le fait d’être atteint d’une pathologie démentielle accroît encore ce phénomène : les individus souffrant de démence sont considérés comme faisant partie du groupe le plus marginalisé et stigmatisé dans la société (Graham et al., 2003). Les personnes qui en sont atteintes sont souvent perçues comme n’ayant plus une bonne qualité de vie (Qdv) ni la capacité d’éprouver du plaisir (Garand et al., 2009). En ce sens, ces personnes font donc l’objet d’une double stigmatisation (stigmatisation liée au fait d’être âgé et d’être atteint de démence). Sur base de ce constat, cette présentation s’axera sur les liens qui peuvent exister entre nos représentations du vieillissement (et de la démence) et le concept de Qdv. Tout d’abord, nous aborderons les résultats des recherches dans le vieillissement « normal ». A côté des études de Levy (cf. Levy, 2009 pour une synthèse) ayant démontré l’impact délétère d’une vision négative du vieillissement sur la santé mentale et physique des aînés, diverses études récentes (ex : Bodner et al., 2011) ont montré qu’une vision négative du vieillissement était liée à une moindre Qdv. Plus encore, le niveau de Qdv peut en partie s’expliquer par la vision du vieillissement (ex : Top et al., 2012). Ces constations nous amènent à nous questionner sur la situation dans le cadre des pathologies démentielles. A ce niveau, il s’avère nécessaire de recourir à une hétéro-évaluation de la Qdv pour toute personne souffrant d’une démence sévère. En ce sens, ce n’est pas le patient lui-même qui fournit des réponses mais un aidant (professionnel ou familial). Sur base de cet élément, nous avons mis au point un protocole de recherche destiné à évaluer la Qdv de personnes souffrant de pathologies démentielles vivant en MR ou MRS, en y incluant des mesures d’âgisme des aidants. Ce protocole a été élaboré dans le cadre d’une collaboration avec l’ASBL Fédération des Institutions Hospitalières (FIH). Nous faisons l’hypothèse que la perception d’une même réalité (un même patient est évalué sur base d’un même outil) c.à.d. la qualité de vie, serait en partie tributaire de la vision que chaque soignant a du vieillissement et de la démence. Dans le prolongement de la présentation de cette étude, nous aborderons le fait qu’avoir une vision négative du vieillissement et de la démence nous amène à avoir des attitudes différentes (souvent bienveillantes mais pas toujours positives) à l’égard des personnes âgées. Ces attitudes ont un impact délétère sur la santé mentale et physique des personnes âgées et donc aussi sur leur qualité de vie (ex : Mandelblatt et al., 2003). Ces conséquences de l’âgisme sont donc susceptibles de confirmer la vision négative véhiculée à l’égard des personnes âgées (ex. : les personnes âgées sont vulnérables, dépendantes et ont une mauvaise qualité de vie) et ainsi d’alimenter un cercle vicieux. Biblio 1. Eurobaromètre 57.0 - mai 2012 - http://europa.eu.int/comm/public_opinion/ 2. Graham et al., 2003 Int J Geriatr Psychiatry, 18(8), 670-678. 3. Garand et al. (2009). Res Gerontol Nurs, 2(2), 112-121. 4. Levi (2009). Curr Dir Psychol Sci; 18, 332-6 5. Bodner et al. (2011). Int Psychogeriatr,23(8),1197–1204 6. Top et al. (2012). Research on Aging, 35(5), 533-562 7. Mandelblatt et al. (2003). J Clin Oncol, 21, 855-863. [less ▲]

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See detailL'evidence-based practice en psychologie et en logopédie
Durieux, Nancy ULg

Conference (2014, October 17)

L’evidence-based practice (EBP) est une approche qui recommande d’optimiser les soins de santé en intégrant les meilleures données actuelles issues de la recherche scientifique, l’expertise des cliniciens ... [more ▼]

L’evidence-based practice (EBP) est une approche qui recommande d’optimiser les soins de santé en intégrant les meilleures données actuelles issues de la recherche scientifique, l’expertise des cliniciens ainsi que la situation et les préférences de chaque patient (Sackett et al., 1996). L’EBP fait couler beaucoup d’encre en médecine, où elle prend sa source, mais également dans d’autres disciplines. Certains praticiens ne jurent que par elle, d’autres la décrient… Quoiqu’il en soit, le recours à l’EBP est de plus en plus encouragé en logopédie et en psychologie. Les principaux objectifs de cette conférence seront de définir l’EBP, d’en décrire les étapes et d’exposer les bénéfices et les obstacles à son application. Des perspectives d’avenir seront également discutées afin que l’EBP puisse intégrer le quotidien des logopèdes et des psychologues en Belgique. [less ▲]

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See detailExperimental in vivo infection of pigs by a wild boar hepatitis E virus strain
Thiry, Damien ULg; Rose, Nicolas; Paboeuf, Frédéric et al

Conference (2014, October 17)

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See detailLes îles (d')où fuir. Poétique croisée de la robinsonnade et de l'anticipation
Stienon, Valérie ULg

Conference (2014, October 17)

Il existe des parentés remarquables entre certaines caractéristiques du roman d’aventures et les premières fictions d’anticipation françaises. Il n'y a pas seulement que la notion d’"aventure" est floue ... [more ▼]

Il existe des parentés remarquables entre certaines caractéristiques du roman d’aventures et les premières fictions d’anticipation françaises. Il n'y a pas seulement que la notion d’"aventure" est floue, composant une catégorie infiltrante tenant de l’hypergenre ou du genre parasite, mais il existe aussi des propriétés communes formant un genre hybride de « science-fiction d’aventures» qui compose un corpus important, pourtant peu considéré par les études littéraires consacrées au récit d'anticipation. Envisagé sous cet angle, tout un pan de la production d’anticipation de la seconde moitié du XIXe siècle apparaît comme marqué par le déplacement géographique autant sinon davantage que par le voyage temporel, cultivant une plasticité qui permet dans certains cas des reprises à l’identique ou presque. Ce sont ces procédés d’hybridation qui font l'objet de cette communication, à partir d’un type de récits généralement considéré comme un sous-genre matriciel de l’aventure, la robinsonnade, considérée dans quatre romans du dernier quart du XIXe siècle: André Laurie, Les Exilés de la Terre; Georges Le Faure, Les Robinsons lunaires; Jules Verne, L'Île à hélice; Paul Adam, Lettres de Malaisie. [less ▲]

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See detailÉpidémiologie de la lithiase urinaire en Province de Liège
Castiglione, Vincent ULg; JOURET, François ULg; Bruyère, Olivier ULg et al

Conference (2014, October 17)

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See detailDépression, niveau d'engagement dans des activités et processus psychologiques : Nouvel axe de lecture et nouveaux outils d'évaluation
Wagener, Aurélie ULg

Conference (2014, October 17)

Cet atelier aura pour objectif de présenter un modèle théorique, testé auprès de 500 personnes, des liens entre la dépression, le niveau d’engagement dans des activités et différentes familles de ... [more ▼]

Cet atelier aura pour objectif de présenter un modèle théorique, testé auprès de 500 personnes, des liens entre la dépression, le niveau d’engagement dans des activités et différentes familles de processus psychologiques (image de soi, pensées négatives répétitives, évitement expérientiel, satisfaction environnementale, régulation émotionnelle et tendance à l’approche). Plus précisément, nous menons actuellement une étude dont les résultats nous permettront d’identifier les processus psychologiques médiateurs de la relation entre la dépression et le niveau d’engagement dans des activités. Ces processus psychologiques médiateurs pourront donc devenir des cibles précises et identifiées du traitement psychothérapeutique. Pour mener à bien cette étude, nous avons réalisé une revue de la littérature des outils évaluant spécifiquement ces processus psychologiques. Certains questionnaires ont été traduits de l’Anglais au Français et sont en cours de validation. L’ensemble des échelles utilisées, leur utilité et leur cotation, seront présentées lors de l’atelier. Elles seront également mises à disposition des cliniciens intéressés. Une discussion concernant les patients avec lesquels les utiliser sera également proposée. [less ▲]

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See detailVitamine D: métabolisme, sources, modes d'action.
CAVALIER, Etienne ULg

Conference (2014, October 16)

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See detailMolecular biology of HCV: past, present and future perspective
BONTEMS, Sébastien ULg

Conference (2014, October 16)

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See detailOutcomes from the MACSUR grassland model inter-comparison with the model CARAIB
Minet, Julien ULg; Laloy, Eric; Tychon, Bernard ULg et al

Conference (2014, October 15)

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See detailGuidance Document: Background information on Uncertainty of Measurement
Dumont, Fabien ULg

Conference (2014, October 14)

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See detailThe philosophical and political commitments of Eugène Catalan
Vandersmissen, Jan ULg

Conference (2014, October 14)

In 1865 the French mathematician Eugène Catalan was appointed professor at the University of Liege. In the nineteenth century the Belgian government developed a policy of attracting famous foreign ... [more ▼]

In 1865 the French mathematician Eugène Catalan was appointed professor at the University of Liege. In the nineteenth century the Belgian government developed a policy of attracting famous foreign scholars, mainly coming from the German principalities and France, in order to bring the education system to a higher level. In this case, however, the appointment had an outspoken political and philosophical dimension. Catalan sought and found refuge in Belgium because his career prospects in France were severely hindered due to his strong republican and anti-Bonapartist viewpoints. In a speech he gave at the University’s Academic Hall on the occasion of his retirement on December 7, 1881, Catalan emphasized he had two passions in life: la Politique militante et les Mathématiques [“Militant Politics and Mathematics”]. In this paper, we will investigate the first of these passions against the background of the revolutionary tensions of the time on the basis of a series of primary sources: first, a brochure edited by Catalan himself at the end of his life, entitled Miettes littéraires et politiques, par un vieux mathématicien (Liège, 1889); second, Catalan’s correspondence, covering several decades, and preserved at the Manuscripts Department of the University of Liège; third, a journal kept by Catalan during the years 1858 to 1862, entitled Journal d’un bourgeois de Paris. An in-depth analysis of these sources will allow us to discover Catalan’s own perception of his political and philosophical commitments, the reasons behind his involvement in the revolutionary uprisings of 1830, 1848 and 1851, the exact nature of his activism, his interpretation of the republican ideal, his political hopes and deceptions, his view on both French and European social and political realities, his struggle with the Catholic Church, the meaning of his engagement in Freemasonry. [less ▲]

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See detailChlorophyll: natural sources, extraction methods and application for textile industry
Miazek, Krystian ULg; Remacle, Claire ULg; Richel, Aurore ULg et al

Conference (2014, October 14)

Chlorophyll is a photosynthetic pigment available abundantly in microalgae and terrestrial plants. This pigment found applications in pharmaceutical, cosmetic and food products as a wound healing ... [more ▼]

Chlorophyll is a photosynthetic pigment available abundantly in microalgae and terrestrial plants. This pigment found applications in pharmaceutical, cosmetic and food products as a wound healing, antioxidant or coloring agent. Recent reports suggest that chlorophyll can also be used as a biomordant to enhance the dyeing process of textile products, but also as a textile dye with antimicrobial properties. In this presentation, different aspects of chlorophyll production are discussed. Firstly, numerous plant biomass types as potential sources of chlorophyll are presented. Subsequently, different methods for chlorophyll extraction and separation from plant biomass are described. Finally, possibilities of chlorophyll implementation into textile products on industrial scale are evaluated. [less ▲]

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See detailEvaluation de la pression sous glottique estimée (PSGE) en fonction de la pathologie vocale: étude sur 418 patients.
Morsomme, Dominique ULg; Chareix, Hélène; Finck, Camille ULg et al

Conference (2014, October 13)

Objectif: Notre but est d'analyser la pression sous-glottique estimée (PSGE) en fonction de la pathologie vocale, du genre et du niveau de pression sonore. Nous observons également les corrélations entre ... [more ▼]

Objectif: Notre but est d'analyser la pression sous-glottique estimée (PSGE) en fonction de la pathologie vocale, du genre et du niveau de pression sonore. Nous observons également les corrélations entre la PSGE, le Voice Handicap Index (VHI) et le Dysphonia Severity Index (DSI). Méthode: 418 patients (118 H, 300 F) ont réalisé un bilan vocal (VLS, mesures acoustiques, aérodynamiques, VHI). La PSGE est collectée à l’aide du Phonatory Aerodynamic System Model 6600 (KayPentax). Les patients ont produit 3 séries de /ipipi/ à 3 niveaux de pressions sonores (conversationnel, faible et fort). Résultats: A intensité forte, les hommes ont un niveau de PSGE supérieur à celui des femmes. A intensité faible, le groupe « atrophie » montre des scores plus faibles que le groupe « nodules » et à intensité forte plus faibles que le groupe « polype ». A intensité conversationnelle, le groupe « examen normal » montre des scores plus faibles que les groupes « nodules », « polypes » et « œdème de Reinke ». A intensité faible, la même différence est observée avec en plus les groupes « kystes » et « cicatrices ». Nous observons une corrélation positive entre la PSGE et le VHI à intensité faible et négative à intensité forte. A intensité conversationnelle et faible, nous observons une corrélation négative entre le DSI et la PSGE. Quel que soit le niveau d’intensité, nous n’observons pas de corrélation pour le groupe « kyste ». Conclusion: Cette étude met en évidence l’intérêt de la PSGE. Une PSGE élevée est principalement observée chez les patients avec lésion sur le plan glottique. La corrélation entre PSGE et niveau de pression sonore varie en fonction de la pathologie. La mesure de PSGE peut aider le clinicien à mieux comprendre le comportement vocal du patient en lien avec sa pathologie. [less ▲]

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See detailQuel est le profil professionnel des patients consultant en phoniatrie?
REMACLE, Angélique ULg; Petitfils, Cloé; LEJEUNE, LIONEL ULg et al

Conference (2014, October 13)

Nous avons analysé les dossiers de 1079 patients (754 femmes et 325 hommes) qui se sont présentés au CHU de Liège entre 2009 et 2013 pour une plainte vocale. Chez ces patients, nous avons répertorié 121 ... [more ▼]

Nous avons analysé les dossiers de 1079 patients (754 femmes et 325 hommes) qui se sont présentés au CHU de Liège entre 2009 et 2013 pour une plainte vocale. Chez ces patients, nous avons répertorié 121 personnes sans profession (11%), 166 étudiants (16%), 215 retraités (20%), et 577 travailleurs (53%). Parmi ces 577 travailleurs, il y avait notamment 129 enseignants, 55 employés de bureau, 50 chanteurs, comédiens et musiciens, 41 commerçants, 39 managers, 37 aides ménagères et 35 ouvriers. Objectif : Pour les travailleurs, nous avons tenté d’établir le degré d’exposition aux troubles de la voix selon la profession exercée en fonction de leur représentation dans la partie francophone de la Belgique (Wallonie). Notre objectif était de cibler les travailleurs les plus à risque de consulter un spécialiste de la voix. Méthode : Nous avons estimé la proportion de ces travailleurs par profession en calculant le rapport entre leur nombre en consultation phoniatrique et leur nombre parmi les travailleurs wallons. Résultats : Les travailleurs qui consultent le plus pour un problème de voix et qui sont donc le plus à risque sont, par ordre décroissant : les chanteurs, comédiens et musiciens (3.3% ont consulté), suivis par les professeurs de musique (1.5%), les animateurs (0.45%), les entraineurs sportifs (0.29%), les psychologues (0.20%), les journalistes et standardistes (0.17%), et les enseignants (0.14). En conclusion, cette étude montre que les travailleurs qui consultent le plus en phoniatrie ne représentent pas nécessairement le groupe professionnel le plus à risque. [less ▲]

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See detailOn the Importance of Being (More) Attentive. Another Look at Descartes' Practice of Meditation.
Dubouclez, Olivier ULg

Conference (2014, October 11)

At the beginning of Meditation IV the meditator triumphantly announces that he has “now no difficulty in turning away (convertam) from imaginable things and toward things which are objects of the ... [more ▼]

At the beginning of Meditation IV the meditator triumphantly announces that he has “now no difficulty in turning away (convertam) from imaginable things and toward things which are objects of the intellect alone” (AT, VII, 53). Meditation VI thereafter confirms that pure intellection, as opposed to imagination, consists only in turning towards oneself (convertat) and demands no “peculiar effort of the mind” (73). However efforts of attention are required throughout the Meditations and Meditations IV, V and VI are no exceptions in this respect. Descartes’ Second Set of Replies (156-159) confirms that attention is needed as a mental support for metaphysical analysis in order to embrace different ideas and connect different parts of a demonstration. A thorough examination of the Meditations shows something even more interesting: attention is conceived by Descartes as a varying force that can be diminished or relaxed but also, and most importantly, increased as comparative forms like “attentius” (19; 55; 66; 71) or “diligentius” (32; 35; 45) suggest. For sure, it is an original aspect of Cartesian meditative exercise: we are not only invited to maintain our attention but also to make it more intense at a certain point. Such an increase is crucial for the development of the dream argument (55) and also for the achievement of both proofs of the existence of God (45; 66). But is it not a kind of deus ex machina that the meditator puts forward in order to overcome otherwise unsolvable difficulties? A posterior work, The Passions of the Soul, can help us understand such a strategy. In article 72, Descartes distinguishes between two kinds of attention; the first one stems from wonder and is “at its full strength from the start” (XI, 382); it is contrasted with a second type “which, being weak at first and growing only gradually, can be easily diverted” (Ibid.) Further on Descartes says that passion is useful in “strengthening thoughts… and causing them to endure into the soul” (383) but that “the application of our understanding” has the same effect when “our will fixes [it] in a particular attention or reflection” (384). This last case applies to the Meditations: the meditator who is constantly exposed to misleading influences would be easily “diverted” and even stopped if he was not pushed by his own will to go further in his metaphysical inquiry. “Peaks” of attention occurring in the Meditations are caused by volitions originating in the meditator’s resolution to attain truth and certainty and, as we shall see, they are used against three types of harmful influence: sensitive in Meditation I, imaginative in Meditation II and III, and intellectual in Meditation IV and V where old philosophical habits stand in the way of Cartesian theology. [less ▲]

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See detailPlace de l'exploration neurophysiologique dans la SEP
DIVE, Dominique ULg; GIFFROY, Xavier ULg; WANG, François-Charles ULg

Conference (2014, October 11)

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See detailPrix littéraires, entre attention et prestige - le cas du Prix du Livre Allemand
Houscheid, Karin ULg

Conference (2014, October 10)

In 2013, the Hungarian writer Terézia Mora was awarded the German Book Prize for her novel "Das Ungeheuer" (The Monster). Her text contrasts with other more current and popular novels in terms of thematic ... [more ▼]

In 2013, the Hungarian writer Terézia Mora was awarded the German Book Prize for her novel "Das Ungeheuer" (The Monster). Her text contrasts with other more current and popular novels in terms of thematic content, textual form, and book design. As such, "Das Ungeheuer" does not really fit into the range of "technically properly narrated" literature that used to be awarded with the prize. Usually, the laureates of the German Book Prize were so-called "Familienromane" (family novels), a currently very popular genre. By honouring Mora, the jury attempted to increase and preserve the prestige of the young literary prize (awarded since 2005) that is based on the model of the French Prix Goncourt and the English Booker Prize. The German Book Prize had quickly fallen into disrepute with the German literary critics who characterize the Book Prize as a "sheer marketing prize" because it comes along with high ranks in German bestseller lists and many foreign rights sales for its laureates. As a new award, the German Book Prize has to position itself in the literary field. A detailed analysis of the prize and its laureates therefore allows us to observe how the struggle for prestige develops today and to consider the question whether "attention" can be considered a new form of capital that competes with Bourdieu's symbolic capital, or a variant form of symbolic capital in the current media-drenched (literary) society. In order to find an answer to this question I am going to confront the marketing and transfer strategies as well as the literary reception of the novels "Die Mittagsfrau" by Julia Franck (laureate in 2007) and "Das Ungeheuer" by Terézia Mora. [less ▲]

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See detailPrediction of Regulatory Networks & Control of Secondary Metabolite Biosynthesis
Rigali, Sébastien ULg

Conference (2014, October 10)

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See detailIs there a role for intra-arterial therapy or isolated liver perfusion?
DETRY, Olivier ULg

Conference (2014, October 10)

IS THERE A ROLE FOR INTRA-ARTERIAL THERAPY OR ISOLATED LIVER PERFUSION? Pr Olivier Detry, Dpt of Abdominal Surgery and Transplantation, CHU Liege, University of Liege, The liver is the most common ... [more ▼]

IS THERE A ROLE FOR INTRA-ARTERIAL THERAPY OR ISOLATED LIVER PERFUSION? Pr Olivier Detry, Dpt of Abdominal Surgery and Transplantation, CHU Liege, University of Liege, The liver is the most common visceral site of colorectal cancer (CRC) metastasis and recurrence. Approximately 25% of CRC patients present with synchronous hepatic metastases at time of initial diagnosis, and further 50% will develop metachronous metastases during the course of their illness. Unfortunately, only 25% of patients with hepatic CRC metastases are suitable for R0 resection at time of diagnosis or after chemotherapy. Intra‐arterial locoregional therapies are evolving tools in the management of CRC liver metastases. Although these therapies were initially used for salvage and palliation, they are becoming therapeutic options earlier in the course of disease in selected populations, to increase the rate of curative surgical resection, and to improve survival and quality of life. Furthermore, intra‐arterial therapies may serve as viable first‐line treatments for the large majority of patients who present with unresectable liver metastases, and as neoadjuvant chemotherapy prior to hepatectomy to minimize systemic effects. Hyperthermic isolated liver perfusion (HILP) has also been proposed by some groups as a mean to treat patients with unresectable liver metastases. Significant anti-tumoral effect has been demonstrated but HILP is a complicated procedure with a high morbidity. There remains a lack of robust, prospective randomized data for fair and balanced comparisons to be made between locoregional and modern systemic therapeutic modalities, as well as between locoregional therapies. Future RCTs addressing overall patient survival, tumor response and toxicity are required before any of these locoregional intra‐arterial treatments can be definitively recommended as the standard of care for hepatic colorectal liver mestastases. At the CHU of Liege, intra-arterial chemotherapy is now the usual way of administrating chemotherapy in patients with multiple CRC metastases limited to the liver after R0 liver resection. [less ▲]

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See detailSustainability, Dynamic Capabilities, and Innovation
Crutzen, Nathalie ULg; Rammal, Hussain; Burritt, Roger

Conference (2014, October 09)

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See detailRecent advances and improvements in computerized adaptive testing with the R package catR
Barrada, Juan Ramon; Magis, David ULg

Conference (2014, October 08)

The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and ... [more ▼]

The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and holds various options to select the first items, estimate ability, select the next item, stop the test and return final results. Two main improvements were realized. First, several rules for next item selection were added, among others, Kullback- Leibler, progressive and proportional methods. Second, catR was limited to dichotomous IRT models so far. The most recent update allows now for several polytomous IRT models, such as partial and generalized partial credit model, graded and modified graded response models, rating scale model, and nominal response model. All improvements will be shortly presented, both from a theoretical point of view and in terms of practical implementation in catR. If possible, several illustrative examples will be displayed in a short live demonstration of catR. [less ▲]

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See detailPrésentation de cas cliniques résolus ou non résolus
WANG, François-Charles ULg

Conference (2014, October 07)

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See detail27èmes Entretiens Jacques Cartier
Lambert, Marie ULg

Conference (2014, October 07)

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See detailHow to manage HTA in 2014?
Krzesinski, Jean-Marie ULg

Conference (2014, October 07)

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See detailNeuropathies proximales du membre supérieur
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 detailDiscussion de cas cliniques et atelier pratique
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 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 detailCognitive rehabilitation : Past, present and future.
Majerus, Steve ULg

Conference (2014, October 04)

Detailed reference viewed: 11 (4 ULg)
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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 detailLes biomarqueurs du remodelage osseux
CAVALIER, Etienne ULg

Conference (2014, October 02)

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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)

Detailed reference viewed: 16 (2 ULg)
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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 detailIntegrating lexis, gesture and discourse in spatial descriptions
Lemmens, Maarten; Perrez, Julien ULg

Conference (2014, October 01)

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See detailNouveautés en allergologie. L'allergie moléculaire.
GADISSEUR, Romy ULg

Conference (2014, October 01)

Detailed reference viewed: 12 (3 ULg)
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: 16 (3 ULg)
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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 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 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)

Detailed reference viewed: 9 (2 ULg)
See detailUn laboratoire d’autoimmunité paperless : mythe ou réalité ?
LUTTERI, Laurence ULg

Conference (2014, October)

Detailed reference viewed: 7 (0 ULg)
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 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 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 detail6-Years Experience of NBS for Hemoglobin Disorders using TMS
BOEMER, François ULg

Conference (2014, October)

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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)

Detailed reference viewed: 37 (5 ULg)
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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 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?

Detailed reference viewed: 23 (2 ULg)
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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 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 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 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)

Detailed reference viewed: 4 (2 ULg)
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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 detailEFFICACY and Characterization of THE LACTOPEROXIDASE SYSTEM, A NATURAL BIOLOGICAL PESTICIDE
Bafort, Françoise ULg; Perraudin, Jean-Paul; Jijakli, Haissam ULg

Conference (2014, September 26)

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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 detailAutofiction, socioanalyse et récit de soi : Le cas d'Edouard Louis / Eddy Bellegueule
Ledent, David ULg

Conference (2014, September 26)

Detailed reference viewed: 8 (0 ULg)
See detailDevant le forum de la perception interne. Sur les objets d’ordre supérieur III
Zincq, Aurélien ULg

Conference (2014, September 25)

Detailed reference viewed: 25 (3 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 ▲]

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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: 19 (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 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 ▲]

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