References of "Unpublished conference/Abstract"
     in
Bookmark and Share    
Peer Reviewed
See detailLe romancier d'aventures se présente. Entre hors-genre et dette générique, note sur un paradoxe de l'éthique paralittéraire
Di Gregorio, Luca ULg

Conference (2016, April 15)

On voudrait ici interroger un trait curieux de l’histoire des catégories populaires du romanesque frappant par son (apparence de ?) paradoxe, et sur lequel il y aurait lieu, semble-t-il, de formuler ... [more ▼]

On voudrait ici interroger un trait curieux de l’histoire des catégories populaires du romanesque frappant par son (apparence de ?) paradoxe, et sur lequel il y aurait lieu, semble-t-il, de formuler quelques remarques. Ce phénomène concerne un discours qu’a pu tenir, de façon récurrente, le roman d’aventures du XIXe siècle à propos de lui-même et de ses romanciers. En effet, ce secteur productif a ressenti très tôt le besoin, d’un côté, de « s’autoriser du voyage » en quelque sorte, en plaçant ses récits, qu’ils soient plus ou moins fantaisistes, sous le signe de l’aventure vécue, de la relation, ou même du travelogue revendiqué (le paratexte, à cet égard, est patent – on en donnera un digest représentatif) ; mais d’un autre côté, à mesure que s’étoffait cette même production, elle voyait s’élever de grands devanciers sous l’autorité desquels pouvaient désormais se positionner des héritiers et/ou épigones à la mémoire plus ou moins heureuse : ainsi, depuis le titre de « Walter Scott américain » décerné à Fenimore Cooper (sans doute le premier cas attesté de notre phénomène), tout le siècle grouillera d’étiquettes accréditantes du même genre, par lesquelles des générations renouvelées de romanciers d’aventures se proposeront au public. Dans le cas de cette quête d’auteurs-garanties, c’est évidemment l’illustration d’un lignage générique qui est poursuivie. Ainsi – sans exhaustivité – parlera-t-on, dans les journaux et les discours périphériques, d’Alexandre Dumas comme du « Walter Scott français », de Gabriel Ferry comme du « Cooper français », de Gustave Aimard, ou même d’Emmanuel Gonzalès (dans la Gazette bibliographique de 1881) selon les cas, comme d’un « Cooper français » ou d’un « Mayne-Reid français » ; de Karl May comme du « Cooper allemand », de Salgari comme du (seul) « Verne italien », et même de Louis Boussenard comme du « Verne beauceron » ( !) Il se tisse là un réseau proliférant de cooptation d’auteurs et d’essais d’affiliation hautement génériques, dont on peut déjà observer, à ces quelques exemples, que ce geste fraye et se reproduit dans toutes les industries paralittéraires d’Europe. Comment le romancier assume-il ce paradoxe ? L’assume-t-il seulement, ou se complaît-il plutôt à jouer sur l’un ou l’autre tableau ? Qui est le romancier d’aventures – ou, plutôt, que veut-il être ? Plus profondément encore : où cette oscillation définitoire – contradictoire – débouchera-t-elle à la fin du siècle, et quel « pêché définitoire originel » dénonce-t-elle aux racines mêmes du roman d’aventures ? Nos remarques procéderont par études de cas précises, en s’efforçant de faire dialoguer ces décorticages particuliers avec la réflexion théorique et les hypothèses de réponses que nous tenterons de formuler. Entre l’ethos du vadrouilleur se disant secondairement écrivain (ou écrivain par accident) et l’héritier générique cherchant son Médiateur à la matière et aux codes indépendants et bien établis, notre argument voudra explorer, en tout cas, un lieu d’intense dialectique dans les dynamiques d’accréditation du récit paralittéraire dixneuvièmiste. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailSwiping or Quoting? Charles Burns’s Cut-Ups of “Old” Comics
Crucifix, Benoît ULg

Conference (2016, April 15)

In Todd Hignite's In the Studio, Charles Burns characterizes a scrapbook put together by his father as one of his “most prized possessions.” The scrapbook contains a collection of various comic strips ... [more ▼]

In Todd Hignite's In the Studio, Charles Burns characterizes a scrapbook put together by his father as one of his “most prized possessions.” The scrapbook contains a collection of various comic strips which his father used for reference when dabbling in cartooning. This scrapbook is a symbol of the close bond between reading, collecting and drawing while underlining the importance of imitation and ‘swiping’ in the production and reception of comics. Burns, whose Tumblr “Johnny 23” could be seen as a digital equivalent to his father's scrapbook, is himself profoundly engaged in ‘swiping’ panels from ‘old’ comics, from American horror and romance comic books to Hergé's Tintin albums. This paper will explore the stakes of ‘swiping’ and quotation in the author's recent production. I will not only focus on his borrowings from Tintin and romance comics for his X'ed Out trilogy, but also on related projects with small-press publishers like Le Dernier Cri, B.ü.l.b. Comix, Cornélius. The way Burns turns to the archive of comics and redeploys it follows the random logic of Burroughs's cut-up technique, which not only recalls the cut-and-paste aesthetics of the scrapbook but is also echoed in the fragmented materiality of the project. However, Burns's cut-ups are not literally ‘cut up’ as much as they are drawn. Elaborating on Philippe Marion's influential concept of “graphiation,” this paper will analyze the citational practice of Charles Burns in medium-specific and historical terms, examining what it means to redraw the past of comics into the contemporary graphic novel. Indeed, how does his work walk the line between ‘individual’ and ‘collective’ graphic styles? How does it play with various conceptions of authorship and how does it negotiate the affects bound up with the appropriated works? [less ▲]

Detailed reference viewed: 71 (20 ULg)
Full Text
Peer Reviewed
See detailLe détournement de jeux vidéo : une analyse rhétorique et poétique
Barnabé, Fanny ULg

Conference (2016, April 15)

Le jeu vidéo, né au sein de la culture hacker, est historiquement lié à la pratique du détournement et de la réappropriation. Cette tendance première s’actualise aujourd’hui dans nombre de pratiques qui ... [more ▼]

Le jeu vidéo, né au sein de la culture hacker, est historiquement lié à la pratique du détournement et de la réappropriation. Cette tendance première s’actualise aujourd’hui dans nombre de pratiques qui prolongent le jeu hors de son espace premier et investissent d’autres supports : que l’on pense aux fanfictions, au modding, ou encore aux machinimas, le jeu vidéo est ponctuellement appréhendé par les joueurs non comme une œuvre fermée à consommer, mais comme un outil pour créer à partir de. La présente communication vise donc à étudier les détournements de jeux vidéo d’un point de vue formel, en mesurant et en caractérisant l’écart que ces œuvres « au second degré » construisent par rapport à une pratique consensuelle du jeu. Plus spécifiquement, nous tenterons ici de mettre au jour deux difficultés théoriques propres à l’étude du détournement de pratiques ludiques. [less ▲]

Detailed reference viewed: 27 (2 ULg)
Full Text
Peer Reviewed
See detailFirst record of cryptospores in post-Hirnantian (latest Ordovician-early Silurian) sediments from Ethiopia
Brocke, R.; Bussert, R.; Lebenie, D. et al

Conference (2016, April 15)

Detailed reference viewed: 10 (3 ULg)
See detailAnalgesia monitoring
BONHOMME, Vincent ULg

Conference (2016, April 14)

Detailed reference viewed: 11 (1 ULg)
Peer Reviewed
See detailLes genres du roman au XIXe siècle: introduction
Stienon, Valérie ULg; Pézard, Émilie

Conference (2016, April 13)

Le XIXe siècle a vu s’opérer le « sacre du roman » (Mona Ozouf). La promotion de ce genre anciennement déprécié est liée à l’entreprise de légitimation qu’ont menée, dans leurs œuvres, quelques grands ... [more ▼]

Le XIXe siècle a vu s’opérer le « sacre du roman » (Mona Ozouf). La promotion de ce genre anciennement déprécié est liée à l’entreprise de légitimation qu’ont menée, dans leurs œuvres, quelques grands romanciers du siècle, comme Balzac et Zola. Elle se manifeste aussi par l’augmentation quantitative des romans publiés, la diversification des supports éditoriaux (volumes, feuilletons, recueils) ainsi que celle des modes de diffusion (cabinets de lecture, collections, compilations). Ces différents facteurs induisent une « spécialisation du roman », c’est-à-dire une division du genre romanesque en de multiples sous-genres. Roman noir, personnel, sentimental, historique, d’aventures, de mœurs, de cape et d’épée, mondain, psychologique, scientifique ne sont que quelques-unes des catégories permettant aux contemporains de fragmenter un domaine romanesque devenu immense. Cette multiplication est facilitée par la possibilité de définir un genre à partir de nombreux critères, plus ou moins pertinents. D’autres genres ont été oubliés : qui se souvient du roman ecclésiastique ou du roman militaire ? Alors que de nombreux travaux ont déjà permis de préciser les connaissances sur un genre particulier, nous souhaiterions porter un regard englobant et transversal sur cette division du roman en de multiples genres, qui nous semble constituer un enjeu majeur pour l’étude de la production littéraire au XIXe siècle. [less ▲]

Detailed reference viewed: 18 (0 ULg)
Full Text
Peer Reviewed
See detailA Refined Method for Estimating the Global Hölder Exponent
Kleyntssens, Thomas ULg; Kreit, Damien; Nicolay, Samuel ULg

Conference (2016, April 12)

We give a wavelet characterization of the generalized Hölder spaces and show how this result can be applied to detect logarithmic corrections appearing in Brownian processes.

Detailed reference viewed: 30 (7 ULg)
Full Text
See detailThe body beautiful : Feminist bodies as territories of resistance
Herbert, Emilie ULg

Conference (2016, April 09)

Detailed reference viewed: 15 (2 ULg)
Full Text
See detailImpacts of unusually high sea ice cover on Antarctic coastal benthic food web structure
Michel, Loïc ULg; Dubois, Philippe; Eleaume, Marc et al

Conference (2016, April 08)

Antarctica currently undergoes strong and contrasted impacts linked with climate change. While the West Antarctic Peninsula is one of the most rapidly warming regions in the world, resulting in sea ice ... [more ▼]

Antarctica currently undergoes strong and contrasted impacts linked with climate change. While the West Antarctic Peninsula is one of the most rapidly warming regions in the world, resulting in sea ice cover decrease, the sea ice cover of East Antarctica unexpectedly tends to increase, possibly in relation with changes in atmospheric circulation. Changes in sea ice cover are likely to influence benthic food web structure through modifications of benthic-pelagic coupling, disruption of benthic production and/or modifications of benthic community structure (i.e. resource availability for benthic consumers). Here, we studied shallow (0-20 m) benthic food web structure on the coasts of Petrels Island (Adélie Land, East Antarctica) during an event of unusually high spatial and temporal (two successive austral summers without seasonal break-up) sea ice cover. Using stable isotope ratios of C, N and S and the SIAR mixing model, we examined importance of several organic matter sources (benthic macroalgae, benthic biofilm, sympagic algae, suspended particulate organic matter and penguin guano) for nutrition of over 20 taxa of benthic invertebrates (sponges, sea anemones, nemerteans, sessile and mobile polychaetes, gastropods, bivalves, sipunculids, pycnogonids, amphipods, sea stars, sea urchins and sea cucumbers) spanning most present functional guilds. Our results provide insights about how Antarctic benthic consumers, which have evolved in an extremely stable environment, might adapt their feeding habits in response to sudden man-driven changes in environmental conditions and trophic resource availability. [less ▲]

Detailed reference viewed: 60 (17 ULg)
See detailResolving trophic links within temperate eelgrass meadows - use of fatty acids and stable isotopes in MixSIAR mixing model
Jankowska, Emilia; Wlodarska-Kowalczuk, Maria; De Troch, Marleen et al

Conference (2016, April 08)

Detailed reference viewed: 32 (2 ULg)
Peer Reviewed
See detailThe hands of Papyrus Turin 1879: Individualizing handwritings in 20th dynasty hieratic sources
Polis, Stéphane ULg

Conference (2016, April 08)

Papyrus Turin 1879 (and other fragments) — the so-called ‘Map of the gold mines’ or ‘Turin map’ — is among the most famous papyri of the Turin collection, but it was neither systematically published, nor ... [more ▼]

Papyrus Turin 1879 (and other fragments) — the so-called ‘Map of the gold mines’ or ‘Turin map’ — is among the most famous papyri of the Turin collection, but it was neither systematically published, nor studied up until today. Most of the egyptological attention was indeed captured by the ‘map’ side (e.g., Goyon 1949; Harrell & Brown 1992, with previous references), but the other side, which contains many hieratic texts belonging to different genres, has never been examined thoroughly (exceptions are Janssen 1994 and Hovestreydt 1997 for col. 1-2 of frag. A, vo). The goal of this talk is twofold. First, I will provide an overview of the texts found on this papyrus, focusing on the types of hieratic hands. A special attention will be devoted to the repertoire of hieratic signs as well as to the amount of variation in terms of signs formation for a single hand. Second, I will explore the possibility of ‘individualizing’ the hands of this papyrus by connecting their features to other hieratic sources of the 20th dynasty. Harrel & Brown’s (1992) suggestions regarding the attribution of these texts to specific scribes will be challenged and an alternative methodology will be suggested. [less ▲]

Detailed reference viewed: 14 (0 ULg)
See detail"Living on the Edge of Death": Irony in Chris Abani's Song for Night
Tunca, Daria ULg

Conference (2016, April 07)

Detailed reference viewed: 22 (1 ULg)
Full Text
Peer Reviewed
See detailHot Melt Extrusion as a New Method to Form Inclusion Complexes with Cyclodextrins
Thiry, Justine ULg; Krier, Fabrice; Ratwatte, Shenelka et al

Conference (2016, April 06)

Detailed reference viewed: 21 (0 ULg)
Full Text
See detailNew conservative and regenerative treatments for cartilage and tendon lesions
Kaux, Jean-François ULg

Conference (2016, April 05)

Detailed reference viewed: 31 (4 ULg)
Full Text
See detailComment reconnaître les activités spontanées en EMG
WANG, François-Charles ULg

Conference (2016, April 05)

Detailed reference viewed: 26 (1 ULg)
Full Text
See detailNovel butanol pretreatment significantly improves delignification and saccharification of different lignocellulosic biomasses
Schmetz, Quentin ULg; Teramura, Hiroshi; Jacquet, Nicolas ULg et al

Conference (2016, April 05)

Organosolv pretreatment using diluted acid and butanol allows the separation of cellulose, hemicelluloses and lignin into three distinct phases. The butanol process has been investigated on six different ... [more ▼]

Organosolv pretreatment using diluted acid and butanol allows the separation of cellulose, hemicelluloses and lignin into three distinct phases. The butanol process has been investigated on six different biomasses: tall fescue, sugarbeet pulp, sugarcane bagasse, beech wood, eucalyptus and Japanese cedar. Dilute acid pretreatment has been performed under similar conditions for comparison. [less ▲]

Detailed reference viewed: 46 (2 ULg)
Peer Reviewed
See detailCultures alimentaires et appartenances. Une ethnographie dans l’espace de la frontière
Mescoli, Elsa ULg

Conference (2016, April 04)

« Dis-moi ce que tu manges, je te dirai qui tu es », écrivait déjà en 1826 Brillat-Savarin, en suggérant une approche herméneutique de l’alimentation. La nourriture, en raison de son incorporation, est ... [more ▼]

« Dis-moi ce que tu manges, je te dirai qui tu es », écrivait déjà en 1826 Brillat-Savarin, en suggérant une approche herméneutique de l’alimentation. La nourriture, en raison de son incorporation, est intimement connectée à la construction symbolique de la subjectivité ; elle a également une implication sociale (Sahlins, 1982), dans la mesure où elle fait l’objet d’un partage selon des règles de commensalité (Douglas, 1972). L’anthropologie de l’alimentation permet aujourd’hui d’éclaircir des processus sociaux plus amples que la consommation de nourriture engage (Mintz and Bois, 2002). Un intérêt particulier est porté sur le rapport entre l’alimentation et les représentations identitaires des groupes culturels ou sociaux. Les membres de ceux-ci se rapportent à des cultures alimentaires de façon active, s’engagent dans un processus d’affirmation d’une identité propre et partagée (Lupton, 1996). Ces dynamiques font aussi l’objet de plusieurs études sur la connexion entre alimentation et migration. Ces études mettent tout d’abord en évidence le fait que, lors d’un déplacement, les individus ou les groupes sont confrontés à des cultures alimentaires différentes, et elles s’engagent alors à vérifier dans quelle mesure cette rencontre défie l’identité individuelle (Spiro, 1955; Crenn, 2004; Cardona, 2004) et quelles pratiques elle engage afin de la préserver (Hage, 1997; Beyers, 2008; Diner et Diner, 2009). Souvent, les discours sur l’intégration des migrants concernent aussi les habitudes alimentaires (voir par exemple De Lesdain, 2002), considérées comme des indices d’une disposition à adhérer aux normes de la société « d’accueil ». Le niveau d’intégration (ou la disposition à s’intégrer) serait établie sur base de l’acculturation alimentaire dans le contexte migratoire (voir aussi Bastenier et Dassetto, 1993). Loin de constituer les extrêmes d’une dichotomie irrésoluble, les cultures alimentaires du pays d’origine et du pays d’accueil des migrants qui se rencontrent grâce – entre autre – à la mobilité de ces derniers, créent un espace de frontière qui est habité par les acteurs eux-mêmes (Agier, 2013). Dans cet espace l’appartenance culturelle est questionnée, elle fait l’objet d’une réflexivité (voir aussi Rodier, 2010), et les habitudes alimentaires prennent également la forme d’une « mise en scène du culturel, favorisant des stratégies ponctuelles d’affirmation identitaire et des rhétoriques du conflit » (Julien, 2010 : 17). Cette contribution veut amener une réflexion à propos des dynamiques qui ont lieu dans l’espace de la frontière ainsi définie, au départ de l’analyse de matériaux ethnographiques concernant les pratiques alimentaires de certaines femmes marocaines résidant en Italie et les discours qui les accompagnent. Dans l’espace de la frontière les appartenances socio-culturelles se définissent et sont négociées grâce également aux choix alimentaires. Le rapport individuel aux interdits alimentaires d’ordre religieux en est une preuve, notamment lorsque ce rapport assume la fonction de « [f]aire barrage à l’altérité […] c’est-à-dire instituer la séparation » (Benkheira 1997: 261) ou, inversement, d’affirmer l’échange social selon des modalités propres. [less ▲]

Detailed reference viewed: 17 (0 ULg)
Peer Reviewed
See detailViolence conjugale : l’alexithymie augmente-t-elle le risque de comportement violent ?
Di Piazza, Laetitia ULg

Conference (2016, April 02)

Longtemps ignorée voire minimisée par son caractère privé, la violence conjugale constitue aujourd’hui un délit punissable par la Loi. Durant les trente dernières années, de nombreux auteurs ont axé leurs ... [more ▼]

Longtemps ignorée voire minimisée par son caractère privé, la violence conjugale constitue aujourd’hui un délit punissable par la Loi. Durant les trente dernières années, de nombreux auteurs ont axé leurs recherches sur l’impact de ces violences physiques et/ou psychologiques sur les victimes (épouses, ex-partenaires, enfants). Mais, qu’en est-il des auteurs ? Affirmer que les hommes auteurs de violence conjugale sont violents dans toutes leurs relations, est un mythe. En outre, établir le profil moyen de l’homme auteur de violence conjugale est trop complexe en regard du nombre important de formes de violence possibles. En conséquence, l’objectif de cette étude est d’apprécier la présence de caractéristiques psychologiques spécifiques ainsi que leurs liens, pour constater une éventuelle fragilité qui pourrait expliquer le passage à l’acte violent. Dans cette étude, cinquante-trois hommes ont répondu à des questionnaires d’auto-évaluation mesurant l’alexithymie (TAS-20), la dépression (BDI), ainsi que l’impulsivité (BIS-11). Les résultats montrent que l’alexithymie et la dépression sont significativement associées avec l’engagement dans des comportements violents au sein du couple. En effet, les hommes qui ont participé à l’étude rapportent plus de sentiments dépressifs, et plus de difficulté à nommer et à exprimer leurs émotions que la population générale. En outre, un quart des participants sont caractérisés impulsif. En conclusion, ces premiers constats continuent de suggérer l’existence d’un lien majeur entre le trouble alexithymique et la violence conjugale tel que démontré par l’étude de la Professeure Léveillée en 2013. Cette étude apporte par conséquent des pistes de réflexion ayant un impact clinique significatif sur l’évaluation du risque ainsi que sur l’intervention. [less ▲]

Detailed reference viewed: 18 (2 ULg)
See detailLes théories représentationnelles de l'esprit
Gauvry, Charlotte ULg

Conference (2016, April)

Detailed reference viewed: 24 (0 ULg)
Full Text
Peer Reviewed
See detailEffective soil hydraulic conductivity predicted with the maximum power principle
Westhoff, Martijn ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

Conference (2016, April)

Drainage of water in soils happens for a large extent through preferential flowpaths, but these subsurface flowpaths are extremely difficult to observe or parameterize in hydrological models. To ... [more ▼]

Drainage of water in soils happens for a large extent through preferential flowpaths, but these subsurface flowpaths are extremely difficult to observe or parameterize in hydrological models. To potentially overcome this problem, thermodynamic optimality principles have been suggested to predict effective parametrization of these (sub-grid) structures, such as the maximum entropy production principle or the equivalent maximum power principle. These principles have been successfully applied to predict heat transfer from the Equator to the Poles, or turbulent heat fluxes between the surface and the atmosphere. In these examples, the effective flux adapts itself to its boundary condition by adapting its effective conductance through the creation of e.g. convection cells. However, flow through porous media, such as soils, can only quickly adapt its effective flow conductance by creation of preferential flowpaths, but it is unknown if this is guided by the aim to create maximum power. Here we show experimentally that this is indeed the case: In the lab, we created a hydrological analogue to the atmospheric model dealing with heat transport between Equator and poles. The experimental setup consists of two freely draining reservoirs connected with each other by a confined aquifer. By adding water to only one reservoir, a potential difference will build up until a steady state is reached. From the steady state potential difference and the observed flow through the aquifer, and effective hydraulic conductance can be determined. This observed conductance does correspond to the one maximizing power of the flux through the confined aquifer. Although this experiment is done in an idealized setting, it opens doors for better parameterizing hydrological models. Furthermore, it shows that hydraulic properties of soils are not static, but they change with changing boundary conditions. A potential limitation to the principle is that it only applies to steady state conditions. Therefore the rate of adaptation of hydraulic properties should be faster than the rate of change in boundary conditions. [less ▲]

Detailed reference viewed: 16 (6 ULg)
Full Text
See detailA nonlinear state-space solution to a hysteretic benchmark in system identification
Noël, Jean-Philippe ULg; Esfahani, Alireza; Kerschen, Gaëtan ULg et al

Conference (2016, April)

Detailed reference viewed: 17 (2 ULg)
Full Text
Peer Reviewed
See detailContribution of future urbanisation expansion to flood risk changes
Bruwier, Martin ULg; Mustafa, Ahmed; Archambeau, Pierre ULg et al

Conference (2016, April)

The flood risk is expected to increase in the future due to climate change and urban development. Climate change modifies flood hazard and urban development influences exposure and vulnerability to floods ... [more ▼]

The flood risk is expected to increase in the future due to climate change and urban development. Climate change modifies flood hazard and urban development influences exposure and vulnerability to floods. While the influence of climate change on flood risk has been studied widely, the impact of urban development also needs to be considered in a sustainable flood risk management approach. The main goal of this study is the determination of the sensitivity of future flood risk to different urban devel~ opment scenarios at a relatively short-time horizon in the River Meuse basin in Wallonia (Belgium). From the different scenarios, the expected impact of urban development on flood risk is assessed. Three urban expansion scenarios are developed up to 2030 based on a coupled cellular automata (CA) and agent-based (AB) urban expansion model: (i) business-as-usual, (ii) restrictive and (m) extreme expansion scenarios. The main factor controlling these scenarios is the future urban land demand. Each urban expansion scenario is developed by considering or not high and/or medium flood hazard zones as a constraint for urban development. To assess the model's performance, it is calibrated for the Meuse River valley (Belgium) to simulate urban expansion between i990 and 2000. Calibration results are then assessed by comparing the 2000 simulated land-use map and the actual 2000 land-use map. The flood damage estimation for each urban expansion scenario is determined for five flood discharges by overlaying the inundation map resulting from a hydraulic computation and tlte urban expansion map and by using damage curves and specific prices. The hydraulic model Wolt‘2D has been extensively validated by comparisons between observations and computational results during flood event .This study focuses only on mobile and immobile prices for urban lands, which are associated to the most severe damages caused by floods along the River Meuse. These findings of this study offers tools to drive urban expansion based on numerous policies visions to mitigate future flood risk along the Meuse River. In particular, we assess the impacts on future flood risk of the prohibition of urban development in high and/or medium flood hazard zones. [less ▲]

Detailed reference viewed: 49 (9 ULg)
Full Text
Peer Reviewed
See detailDistribution of uncertainties at the municipality level for flood risk modelling along the river Meuse: implications for policy-making
Pirotton, Michel ULg; Stilmant, Frédéric; Erpicum, Sébastien ULg et al

Conference (2016, April)

Flood risk modelling has been conducted for the whole course of the river Meuse in Belgium. Major cities, such as Liege (200,000 inh.) and Namur (l 10,000 inh.), are located in the floodplains of river ... [more ▼]

Flood risk modelling has been conducted for the whole course of the river Meuse in Belgium. Major cities, such as Liege (200,000 inh.) and Namur (l 10,000 inh.), are located in the floodplains of river Meuse. Particular attention has been paid to uncertainty analysis and its implications for decision-making. The modelling chain contains flood frequency analysis, detailed 2D hydraulic computations, damage modelling and risk calculation. The relative importance of each source of uncertainty to the overall results uncertainty has been estimated by considering several alternate options for each step of the analysis; different distributions were considered in the flood frequency analysis; the influence of modelling assumptions and boundary conditions (e.g., steady vs. unsteady) were taken into account for the hydraulic computation; two different landuse classifications and two sets ofdamage functions were used; the number of exceedance probabilities involved in the risk calculation (by integration of the risk-curves) was varied. In addition, the sensitivity of the results with respect to increases in flood discharges \vas assessed. The considered increases are consistent with a "wet" climate change scenario for the time horizons 202l~2050 and 2071-2100 (Detrembleur et al., 2015). The results of hazard computation differ significantly between the upper and lower parts of the course of river Meuse in Belgium. In the former, inundation extents grow gradually as the considered flood discharge is increased (i.e. the exceedance probability is reduced), while in the downstream part, protection structures (mainly concrete walls) prevent inundation for flood discharges corresponding to exccedance probabilities of 0.01 and above (in the present climate). For higher discharges, large inundation extents are obtained in the floodplains. The highest values of risk (mean annual damage) are obtained in the municipalities which undergo relatively frequent flooding (upper part of the river), as well as in those of the downstream part of the Meuse in which flow depths in the urbanized floodplains are particularly high when inundation occurs. This is the case of the city of Liege, as a result of a subsidence process following former mining activities. For a given climate scenario, the uncertainty ranges affecting flood risk estimates are significant; but not so much that the results for the different municipalities would overlap substantially. Therefore, these uncertainties do not hamper prioritization in terms of allocation of risk reduction measures at the municipality level. In the present climate, the uncertainties arising from flood frequency analysis have a negligible influence in the upper part of the river, while they have a considerable impact on risk modelling in the lower part, where a threshold effect was observed due to the flood protection structures (sudden transition from no inundation to massive flooding when a threshold discharge is exceeded). Varying the number of exceedance probabilities in the integration of the risk curve has different effects for different municipalities; but it does not change the ranking of the municipalities in terms of flood risk. For the other scenarios, damage estimation contributes most to the overall uncertainties. As shown by this study, the magnitude of the uncertainty and its main origin vary in space and in time. This emphasizes the paramount importance of conducting distributed uncertainty analyses. In the considered study area, prioritization of risk reduction means can be reliably performed despite the modelling uncertainties. [less ▲]

Detailed reference viewed: 21 (2 ULg)
Full Text
Peer Reviewed
See detailDoes the Budyko curve reflect a maximum power state of hydrological systems? A backward analysis
Westhoff, Martijn ULg; Zehe, Erwin; Archambeau, Pierre ULg et al

Conference (2016, April)

Almost all catchments plot within a small envelope around the Budyko curve. This apparent behaviour suggests that organizing principles may play a role in the evolution of catchments. In this paper we ... [more ▼]

Almost all catchments plot within a small envelope around the Budyko curve. This apparent behaviour suggests that organizing principles may play a role in the evolution of catchments. In this paper we applied the thermodynamic principle of maximum power as the organizing principle. In a top-down approach we derived mathematical formulations of the relation between relative wetness and gradients driving runoff and evaporation for a simple one-box model. We did this in an inverse manner such that when the conductances are optimized with the maximum power principle, the steady state behaviour of the model leads exactly to a point on the asymptotes of the Budyko curve. Subsequently, we added dynamics in forcing and actual evaporations, causing the Budyko curve to deviate from the asymptotes. Despite the simplicity of the model, catchment observations compare reasonably well with the Budyko curves subject to observed dynamics in rainfall and actual evaporation. Thus by constraining the – with the maximum power principle optimized – model with the asymptotes of the Budyko curve we were able to derive more realistic values of the aridity and evaporation index without any parameter calibration. [less ▲]

Detailed reference viewed: 16 (3 ULg)
See detailL'imagination. Une pratique normée chez Wittgenstein
Gauvry, Charlotte ULg

Conference (2016, April)

Contrairement aux empiristes anglais, Wittgenstein récuse l’idée d’après laquelle les actes d’imagination sont définis par leur « contenu », à savoir une « image mentale » qui ne différerait que par son ... [more ▼]

Contrairement aux empiristes anglais, Wittgenstein récuse l’idée d’après laquelle les actes d’imagination sont définis par leur « contenu », à savoir une « image mentale » qui ne différerait que par son degré d’intensité d’un contenu cognitif (Cf. Hume, Traité de la nature humaine, I, i, 3 ; Wittgenstein, F §621). Parallèlement, Wittgenstein récuse l’hypothèse selon laquelle un « œil mental » ou « œil interne » nous fournirait ces images (cf. e.g. RPP II §66). De fait, les nombreux exemples des Recherches philosophiques comme des textes plus tardifs (cf. e.g. RP §§6, 19 ; F §§98, 571) mettent en scène l’imagination d’un langage, d’une hypothèse, d’un usage, d’un contexte, etc. – autant de choses que l’on ne « voit » pas par l’œil de l’esprit. En adoptant une position assez proche de celles de Reid, Ryle ou Sartre (cf. Glock 1996), Wittgenstein défend alors l’hypothèse d’une imagination sans imaginaire. Ce faisant, Wittgenstein présente l’imagination comme un acte, ou plutôt une « pratique ». Or Wittgenstein dissocie cette pratique de celle de la perception (F §§621-637). Selon le §625 des Fiches, il existe bien un « rapport » entre ces deux jeux de langage, mais pas de « ressemblance ». À titre de premières indications, il semble que les deux pratiques diffèrent pour au moins trois raisons : - Premièrement, Wittgenstein affirme que l’imagination, à la différence de la perception, est assujettie à la volonté (e.g. F §621). Si nous recevons ce que nous percevons, nous pouvons en revanche répudier ou rechercher certaines images. - Qui plus est, en tant que pratique volontaire, l’imagination est soumise aux mêmes règles que celles qui régulent toutes les pratiques. C’est donc une pratique normée : en situation, certaines représentations sont possibles alors que d’autres pas (cf. e.g. RP, §651 : « je ne peux pas imaginer le contraire »). - Il semble enfin que l’imagination, à la différence de la perception, soit une pratique créatrice. Wittgenstein rapproche en effet l’imagination du « voir comme » et non du voir (RP II, 11, RPP §543). Elle joue à ce titre un rôle méthodologique fondamental dans l’économie de la vision synoptique que Wittgenstein appelle de ses vœux. [less ▲]

Detailed reference viewed: 22 (0 ULg)
Full Text
Peer Reviewed
See detailThe contribution of air-fluidization to the mobility of rapid flowslides
Stilmant, Frédéric; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

Conference (2016, April)

Air-fluidization can be the origin of the long runout of gravitational flows involving fine particles such as ash. An excessive air pore pressure dramatically reduces the friction angle of the material as ... [more ▼]

Air-fluidization can be the origin of the long runout of gravitational flows involving fine particles such as ash. An excessive air pore pressure dramatically reduces the friction angle of the material as long as this pressure has not been dissipated, which occurs during the flow. This phenomenon can be modelled thanks to the 2D depth-averaged equations of mass and momentum conservation and an additional transport equation for basal pore pressure evolu- tion (Iverson and Denlinger, 2001). ln this contribution, we discuss the application of this model in relation to recent experimental results on air- fluidized flows by Roche et al. (2008) and Roche (2012). The experimental results were used to set a priori the value of the diffusion coefficient in the model, taking into account the diference of scale between the experiments and real-world applications. We also compare the model predictions against detailed observations of a well-documented historical event, the collapse of a fly-ash heap in Belgium (Stilmant et al., 2015). In particular, we analyse the influence of the different components of the model on the results (pore pressure dissipation vs. pore pressure generation). The diffusion coefficient which characterizes the dissipation of air pore pressure is found sufficiently low for maintaining a fluidized flow over hundreds of meters. The study concludes that an air-tluidization theory is consistent with the field observations. These findings are particularly interesting as they seem not in line with the mainstream acceptation in landslide modelling that air generally plays a secondary role (e.g., Legros, 2002). [less ▲]

Detailed reference viewed: 18 (1 ULg)
Full Text
See detailMAVEN Imaging UV Spectrograph Results on the Mars Atmosphere and Atmospheric Escape
Chaffin; Schneider; McClintock et al

Conference (2016, April)

Detailed reference viewed: 10 (1 ULg)
Full Text
See detailUsing a polynomial decoupling algorithm for state-space identification of a Bouc-Wen system
Esfahani, Alireza; Dreesen, Philippe; Tiels, Koen et al

Conference (2016, April)

Detailed reference viewed: 13 (2 ULg)
See detailreactive gases in the chemistry climate model ECHAM6-HAMMOZ
Schultz, Martin; Taraborrelli, Domenico; Stadtler, Scarlet et al

Conference (2016, April)

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detail[Beamer] A New Wavelet-Based Mode Decomposition for Oscillating Signals and Comparison with the Empirical Mode Decomposition
Deliège, Adrien ULg; Nicolay, Samuel ULg

Conference (2016, April)

We introduce a new method based on wavelets (EWMD) for decomposing a signal into quasi-periodic oscillating components with smooth time-varying amplitudes. This method is inspired by both the “classic” ... [more ▼]

We introduce a new method based on wavelets (EWMD) for decomposing a signal into quasi-periodic oscillating components with smooth time-varying amplitudes. This method is inspired by both the “classic” wavelet-based decomposition and the empirical mode decomposition (EMD). We compare the reconstruction skills and the period detection ability of the method with the well-established EMD on toys examples and the ENSO climate index. It appears that the EWMD accurately decomposes and reconstructs a given signal (with the same efficiency as the EMD), it is better at detecting prescribed periods and is less sensitive to noise. This work provides the first version of the EWMD. Even though there is still room for improvement, it turns out that preliminary results are highly promising. [less ▲]

Detailed reference viewed: 23 (6 ULg)
Full Text
Peer Reviewed
See detailA first database for landslide studies in densely urbanized areas of the intertropical zone: Abidjan, Côte d’Ivoire
Gnagne, Lorng Frédéric ULg

Conference (2016, April)

A detail first database for landslide studies in densely urbanized areas have been produced in two prone-areas which are mainly affected. During rain season, landslides occurred in Abobo and Attecoube ... [more ▼]

A detail first database for landslide studies in densely urbanized areas have been produced in two prone-areas which are mainly affected. During rain season, landslides occurred in Abobo and Attecoube causing social and economic damages. Studies on landslides have been restricted or often simply lacking. Landslides were located by GPS and tentatively dated through inquiries during the survey. While 12 landslides were accurately dated that way from the main rain seasons of 2013 to 2015, newspapers analysis and municipal archive consultation allowed us to assign a part of the rest to the last decade. Field inquiries were also used to collect information about fatalities and the local conditions of landsliding. This first landslide inventory in Attecoube provides clues about the main potential controls on landsliding, natural and anthropogenic, and will help define adequately anthropogenic variables to be used in the susceptibility modelling. [less ▲]

Detailed reference viewed: 15 (3 ULg)
Full Text
See detailMapping cortical modules, their connectivity and functions
Genon, Sarah ULg; Eickhoff, Simon

Conference (2016, April)

Detailed reference viewed: 12 (2 ULg)
Full Text
See detailThe O2(a1Δ) Venus nightglow intensity: internal versus solar activity control
Soret, Lauriane ULg; Gérard, Jean-Claude ULg

Conference (2016, April)

Introduction: The O2(a1Δg) Venus nightglow emission at 1.27 μm occurs in the atmospheric region governed by the subsolar to antisolar circulation. Several studies showed that the intensity of this ... [more ▼]

Introduction: The O2(a1Δg) Venus nightglow emission at 1.27 μm occurs in the atmospheric region governed by the subsolar to antisolar circulation. Several studies showed that the intensity of this emission is highly variable on a timescale of hours. Here, we study the possible correlation between the solar flux and the O2 infrared emission using VIRTIS-VEx spectral images at 1.27 μm that has been predicted to exist by theVTGCM model calculations by Bougher and Borucki(1994). VIRTIS data: Using the entire VIRTIS-M-IR nadir database, Soret et al. (2014) generated seven statistical maps of the O2(a1Δg) emission, each containing 500 observations. The purpose was to analyze the location of the brightest spot of the emission and its variations over time. Here, we analyze the intensity of the emission over time. Several methods have been used by Soret et al., (2015) to do so (evolution of the emission maximum, evolution of the average intensity, …) Here we present the results of a new analysis using a masking technique to calculate the time evolution of the nightglow brightness. However, none of them follow the same trend over time. Solar flux data: We now focus on solar flux variations in the time of VIRTIS observations (between May 2006 and October 2008), which were collected during a deep solar minimum. We use the SOHO-CELIAS/SEM (Judge et al., 1998) EUV daily average full solar disk fluxes at 1 AU between 0.1 and 50 nm available from the Space Sciences Center of the University of Southern California. EUV0.1–50 daily average fluxes decrease from 2.6 in May 2006 to 1.9 in October 2008 at the Earth. These values have been adapted to Venus by taking into account the distance from the Sun to the planet, but also the shift in date, considering the difference in solar longitude of the two planets. Values at Venus vary from 4.4 to 3.4, which corresponds to a decrease of 10.4% of the solar flux at Venus compared to a complete solar cycle (ranging from 13.5 to 3.9) Comparison of VIRTIS and SEM datasets: The linear correlation coefficient between the solar flux and the intensity peak is found to be 0.62, which expresses the global decreasing trend for both quantities. This coefficient is not higher because internal variations of the two studied variables do not occur simultaneously. More significantly, the correlation coefficient between the solar flux and the averaged intensities is found to be 0.35, meaning that no relation-ship exists between the O2(a1Δg) brightness and the solar activity. Conclusions: Contrary to the VTGCM calculations, we do not observe here a correlation between the O2(a1Δg) brightness and the solar flux. However, VIRTIS data were acquired during a deep solar minimum and, more importantly, during a relatively stable phase of the solar activity. A high level of variability of the O2(a1Δg) emission has been detected in the same dataset from day to day though (Hueso et al., 2008; Soret et al., 2014). It thus appears that the variability is more controlled by internal than external conditions: transport appears to play a major role in the nightglow emissions than the solar activity eventually does. This conclusion is at least valid for solar minimum conditions. A space mission with global imaging capabilities over an entire solar cycle would definitely allow determining the relative role played by solar activity and internal factors. [less ▲]

Detailed reference viewed: 16 (1 ULg)
Full Text
Peer Reviewed
See detailSafety and well-being: an integrated model predicting safety behaviors
Laurent, Julie ULg; Chmiel, Nik; Hansez, Isabelle ULg

Conference (2016, April)

Since Hofmann, Jacobs and Landy (1995) emphasized the need to consider the influences of socio-organizational factors on safety, several studies have invoked psychological processes in order to interpret ... [more ▼]

Since Hofmann, Jacobs and Landy (1995) emphasized the need to consider the influences of socio-organizational factors on safety, several studies have invoked psychological processes in order to interpret the relationships they identified between such organizational factors and safety outcomes. However, studies measuring effectively such psychological processes are quite scarce. Four distinct psychological processes have been identified as fundamental to predict safety behaviors: cognitive, motivational, instrumental and social exchange processes. Hansez and Chmiel (2010) have applied the job demands resources model (Bakker & Demerouti, 2007) to the safety domain, identifying 3 different safety specific (instrumental) and non-safety specific (cognitive and motivational) psychological processes explaining safety violations. Our main aim is to integrate the four psychological processes, but also in-role and extra-role safety behaviors to the same model. More specifically, we aim at replicating Hansez and Chmiel’s (2010) results on a different sample and integrating safety-specific social process to the model. 1,922 workers (71% response rate) returned a questionnaire including validated scales measuring job demands (work overload and role ambiguity), job resources (job quality, decision latitude and work support), job strain, job engagement, perceived management commitment to safety, routine and situational violations, safety participation and safety citizenship role definitions (SCRDs). Data were analyzed using structural equation modelling and bootstrapping. Results showed that, as expected, our model followed the same patterns as Hansez and Chmiel’s (2010) model, confirming the importance of cognitive-energetical, motivational and instrumental processes in the prediction of safety violations. Moreover, perceiving management as committed to safety leads workers to define discretionary safety behaviours as part of the job, which is linked to corresponding discretionary behaviours. Participating in such discretionary activities, in turn, leads to (1) lower situational violations, but also to (2) lower routine violations. These results confirm the importance of safety-specific social exchange processes in the prediction of safety violations. Thus, it appears that different processes of reaction to working conditions can impact employee’ safety behaviors. On the one hand, situational violations are impacted by motivational process, as job resources encourage employees to be stimulated by their job, by instrumental process, as perceiving management as committed to safety is directly associated with lower situational violations, and by social process stemming from job resources (i.e. job resources allow employees to perceive their management as committed to safety, and they reciprocate this interest by defining safety as a part of their role, what encourage them to participate to discretionary safety activities). On the other hand, routine violations are impacted by the same social exchange (although to a lesser extent) and motivational processes, but also by cognitive process, as demanding working conditions may provoke job strain, associated with more “corner-cutting”. A practical implication for companies who want to reduce safety violations is to consider safety-specific and non-safety specific processes together. That is, they can try to improve working conditions considered as job resources, but need to keep in mind that these resources determine more complex safety-specific social exchange processes, through the crucial influence of management. [less ▲]

Detailed reference viewed: 38 (4 ULg)
Full Text
See detailContrasting Arctic and Antarctic sea ice temperatures
Vancoppenolle, M.; Raphael, M.; Rousset, C. et al

Conference (2016, April)

Sea ice temperature affects the sea ice growth rate, heat content, permeability and habitability for ice algae. Large-scale simulations with NEMO-LIM suggest large ice temperature contrasts between the ... [more ▼]

Sea ice temperature affects the sea ice growth rate, heat content, permeability and habitability for ice algae. Large-scale simulations with NEMO-LIM suggest large ice temperature contrasts between the Arctic and the Antarctic sea ice. First, Antarctic sea ice proves generally warmer than in the Arctic, in particular during winter, where differences reach up to ∼10◦C. Second, the seasonality of temperature is different among the two hemispheres: Antarctic ice temperatures are 2-3◦C higher in spring than they are in fall, whereas the opposite is true in the Arctic. These two key differences are supported by the available ice core and mass balance buoys temperature observations, and can be attributed to differences in air temperature and snow depth. As a result, the ice is found to be habitable and permeable over much larger areas and much earlier in late spring in the Antarctic as compared with the Arctic, which consequences on biogeochemical exchanges in the sea ice zone remain to be evaluated. [less ▲]

Detailed reference viewed: 25 (1 ULg)
Peer Reviewed
See detailThe Places from which I write: Reflections on the use of a Transnational Situated Feminist Objective Lens in Knowledge Production
Vivas Romero, Maria ULg

Conference (2016, April)

Through this contribution I make use of a Transnational Situated feminist objective lens (Haraway, 1988 , Fernandes, 2013 , Kaplan, 1994 ) to depict the impact of my geopolitical-locations and multi ... [more ▼]

Through this contribution I make use of a Transnational Situated feminist objective lens (Haraway, 1988 , Fernandes, 2013 , Kaplan, 1994 ) to depict the impact of my geopolitical-locations and multi-layered transnational identities on my choice of research topic, project design and definition of research object (Koobak and Thapar-Bjorkert, 2014) . In order to do so, I draw from examples of my multi-sited fieldwork with migrant domestic workers in Brussels and their family members in Peru and Colombia. Through the analysis, I first show how the use of such methodological tool during my pilot fieldwork shifted the aim of my research and led me to focus on the global inequalities experienced by ageing migrant domestic workers in the area of social protection. Secondly, I explore how the same methodological tool led me to choose the adequate intersectional theoretical perspectives and methods to properly address my research object. Thirdly, I show how these same reflections led me to plan ethical measures to produce knowledge under less asymmetrical power relations. This paper shows that my geopolitical locations and multi-layered transnational identities not only enlighten my everyday life experience but also impact the ways in which I construct and conduct my research. Moreover, it highlights the importance of acknowledging the multi-layered nature of the locations from which we write in order to hold ourselves accountable for the situated knowledge we produce. Lastly, this paper shows that reflections on the politics of locations can be useful both for minoritized subjects such as myself who challenge the hegemonic archetypes from the edges as well as for others who occupy more advantageous positions. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
Peer Reviewed
See detailVoyage d'étude curriculum et évaluation de la qualité
Pirard, Florence ULg; Goossens, Xavier

Conference (2016, March 25)

Quand ils sont inscrits dans des dispositifs d’accompagnement organisé en réseau et ancré dans les pratiques professionnelles, on peut faire l’hypothèse que les voyages d’étude contribuent à une ... [more ▼]

Quand ils sont inscrits dans des dispositifs d’accompagnement organisé en réseau et ancré dans les pratiques professionnelles, on peut faire l’hypothèse que les voyages d’étude contribuent à une transformation à la fois des acteurs qui découvrent d’autres manières de penser et d’agir et des actions qu’ils sont susceptibles d’améliorer. Ils s’inscrivent dans des dispositifs qui relèvent d’une culture de la professionnalisation. Nous analyserons un dispositif d’accompagnement centré sur le travail avec les familles qui intègre des voyages d’étude pour des professionnel-le-s de l’accueil en collectivité (fonction d’accueil, direction et coordination). Elle questionne la place du voyage d’étude dans le dispositif, les conditions de sa mise en œuvre et les effets observés sur les pratiques professionnelles. [less ▲]

Detailed reference viewed: 21 (3 ULg)
Full Text
See detailUne généralisation du triangle de Pascal et la suite A007306
Stipulanti, Manon ULg

Conference (2016, March 25)

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word ... [more ▼]

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word. Similarly to the Sierpinski gasket that can be built as the limit set, for the Hausdorff distance, of a convergent sequence of normalized compact blocks extracted from Pascal triangle modulo 2, we describe and study the first properties of the subset of [0, 1]×[0, 1] associated with this extended Pascal triangle modulo a prime p. We consider a sequence (S(n))n≥0 counting the number of positive entries on each row of the generalized Pascal triangle. By introducing a convenient tree structure, we provide a recurrence relation for (S(n))n≥0, we prove that the sequence is 2-regular, give a linear representation and make the connection with the sequence of denominators occurring in the Farey tree. [less ▲]

Detailed reference viewed: 28 (10 ULg)
Full Text
Peer Reviewed
See detailWavelet-based Methods to Study the Regularity of a Signal: from Theory to Practice
Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Conference (2016, March 23)

In this talk, I use the notion of wavelet to design multifractal formalisms. I present the theoritical results obtained on the generalized Snu spaces and I show the utility of these generalization ... [more ▼]

In this talk, I use the notion of wavelet to design multifractal formalisms. I present the theoritical results obtained on the generalized Snu spaces and I show the utility of these generalization. Besides, I also apply these formalisms on a practical example: the Mars topography. [less ▲]

Detailed reference viewed: 18 (3 ULg)
Full Text
See detailRefractory ceramic molds fabrication by additive methods for low and high melting point metal alloys casting
Bister, Geoffroy; Deschuyteneer, Dorian; Hautcoeur, Dominique et al

Conference (2016, March 23)

Detailed reference viewed: 14 (1 ULg)
Full Text
Peer Reviewed
See detailCalendars and rituals at Mari during the šakkanakkū period (end of the 3rd millennium B.C. – beginning of the 2nd)
Colonna d'Istria, Laurent ULg

Conference (2016, March 23)

The order of the months in the calendar at the end of the šakkanakkū period (19th century B.C.) is now well established. This calendar is largely similar to the one in use during the amorite period. This ... [more ▼]

The order of the months in the calendar at the end of the šakkanakkū period (19th century B.C.) is now well established. This calendar is largely similar to the one in use during the amorite period. This paper will focus on the rituals and festivals at Mari during the end of the šakkanakkū period: expenditures for temples, deities and rituals are mentioned in many administrative texts dated to the mid-19th century. Nevertheless, these texts are very patchy and the festivals are not clearly named. The latest excavation archaeological excavations at the site of Tell Hariri-Mari provided us with eleven administrative texts dated to the middle of the šakkanakkū period (i.e. UrIII period or slightly earlier). These texts reveal a calendar which is partly similar to the late šakkanakkū one. [less ▲]

Detailed reference viewed: 14 (0 ULg)
Full Text
See detailGeophysical Investigation of the Pb-Zn deposit of Lontzen, Belgium
Evrard, Maxime ULg

Conference (2016, March 22)

Detailed reference viewed: 8 (1 ULg)
Full Text
See detailUne généralisation du triangle de Pascal
Stipulanti, Manon ULg

Conference (2016, March 22)

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word ... [more ▼]

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word. Similarly to the Sierpinski gasket that can be built as the limit set, for the Hausdorff distance, of a convergent sequence of normalized compact blocks extracted from Pascal triangle modulo 2, we describe and study the first properties of the subset of [0, 1]×[0, 1] associated with this extended Pascal triangle modulo a prime p. [less ▲]

Detailed reference viewed: 22 (7 ULg)
Full Text
See detailOsteopontin predicts radiotherapy response of glioblastoma patients : new role in DNA damage repair
Henry, Aurélie ULg; Nokin, Marie-Julie; Leroi, Natacha ULg et al

Conference (2016, March 22)

- Introduction: Glioblastoma (GBM) is the most aggressive and common solid human brain tumor. Because of GBM heterogeneity, location and aggressiveness, none of the available treatment is curative. These ... [more ▼]

- Introduction: Glioblastoma (GBM) is the most aggressive and common solid human brain tumor. Because of GBM heterogeneity, location and aggressiveness, none of the available treatment is curative. These treatments include maximal surgical resection, radiotherapy and concomitant or adjuvant chemotherapy with Temozolomide. However, the prognosis of adult patients with GBM remains poor and the survival outcome after treatment does not exceed 15 months. GBM-composing cells have developed many strategies to counteract these current therapies. Among the wide hallmarks acquired to survive, high osteopontin (OPN) expression correlates with lower overall and disease-free/relapse-free survival in all tumors combined, as well in brain cancer. Our recent study (Lamour V and Henry A, IJC 2015) has demonstrated the role of OPN in the tumorigenicity of glioblastoma cells and its importance in the maintenance of the stem characters. In the continuation of this work, our recent studies focused on the potential role of OPN in the resistance of GBM cells to radiotherapy and its potential implication in the initiation of Double Strand Breaks (DSBs) repair mechanisms. - Aims: In the context of this study, different GBM cell lines (U251-MG, U87-MG and U87 Viii) were used to assess the role of OPN in the initiation of the DSBs repair mechanism after an exposure to gamma-irradiation. - Methods and results: We performed the transient transfection of different GBM cell lines (U251-MG, U87-MG and U87-MG overexpressing EGFR VIII) with siRNAs specifically directed against OPN. After irradiation, all these OPN-depleted cells consistently showed a lower induction of γ–H2AX compared to control (irrelevant siRNA) as evidenced by western blot and immunofluorescence techniques. Thereafter, clonogenic assays allowed to prove that the survival of OPN-depleted cells was affected after an exposure to irradiation. To assess the importance of OPN expression in the response to radiotherapy, an heterotopic xenograft model was used. In brief, IPTG-inducible U87 shOPN clones were injected subcutaneously in NOD-SCID mice and were allowed to form a tumor. When average tumor volume reached a predetermined size range, mice were treated (or not) with IPTG by intraperitoneal injection during five days. At the end of the treatment, tumors were selectively exposed to gamma-irradiation by using a small animal irradiator X-RAD 225Cx (Precision X-Ray Inc., North Branford, CT). One week later, mice were sacrificed and tumors were measured. In this pilot study, we observed that mice in which the tumor was depleted in OPN displayed a slight regression in the tumor growth compared to mice that received radiotherapy alone (no IPTG), where the tumor volume remained constant. - Conclusions: Taken together, these preliminary data meet the fact that OPN is important in the response of GBM to radiotherapy. The in vitro results converge to the fact that OPN might be implicated in the initiation of the DSBs repair following irradiation. Currently, we would like to investigate this hypothesis in vivo but also to check the effect of OPN depletion combined to radiotherapy on the survival of mice in an orthotopic xenograft model. [less ▲]

Detailed reference viewed: 50 (21 ULg)
Full Text
See detailFeasibility study of repetitive diffusion MRI after Neoadjuvant radiotherapy for following tumor microenvironment.
LALLEMAND, François ULg; Leroi, Natacha ULg; Bahri, Mohamed Ali ULg et al

Conference (2016, March 22)

Purpose/Objective. Neoadjuvant radiotherapy (NeoRT) improves tumor local control and tumor resection in many cancers. The timing between the end of the NeoRT and surgery is mostly driven by the occurrence ... [more ▼]

Purpose/Objective. Neoadjuvant radiotherapy (NeoRT) improves tumor local control and tumor resection in many cancers. The timing between the end of the NeoRT and surgery is mostly driven by the occurrence of side effects or the tumor downsizing. We previously demonstrated in an in vivo model that the timing of surgery and the schedule of NeoRT influenced the tumor dissemination. Here, our aim is to evaluate with functional MRI (fMRI) the impact of the radiation treatment on the tumor microenvironment and subsequently to identify non-invasive markers helping to determine the best timing to perform surgery for avoiding tumor spreading. First, we needed to demonstrate the feasibility of repetitive MRI imaging after NeoRT in mice. Material/methods. We used two models of NeoRT we previously developed in mice: MDA-MB 231 and 4T1 cells implanted in the flank of mice. When tumors reached the planned volume, they are irradiated with 2x5 Gy and then surgically removed at different time points after RT. In the mean time between the end of RT and the surgical procedure, mice were imaged in a 9,4T Agilent® MRI. Diffusion Weighted (DW) -MRI was performed every 2 days between RT and surgery. For each tumors we acquired 8 slices of 1 mm thickness and 0.5 mm gap with an “in plane voxel resolution” of 0.5 mm. For DW-MRI, we performed FSEMS (Fast Spin Echo MultiSlice) sequences, with 9 different B-values (from 40 to 1000) and B0, in the 3 main directions. We also performed IVIM (IntraVoxel Incoherent Motion) analysis, in the aim to obtain information on intravascular diffusion, related to perfusion (F: perfusion factor) and subsequently tumor vessels perfusion. Results. As preliminary results, with the MBA-MB 231 we observed a significant increase of F at day 6 after irradiation than a decrease and stabilization until surgery. No other modifications of the MRI signal, ADC, D or D* were observed. We observed similar results with 4T1 cells, F increased at day 3 than returned to initial signal. The difference in the timing of the peak of F can be related to the difference in tumor growth between MBA-MB 231 and 4T1 (four weeks vs one week). Conclusion. For the first time, we demonstrate the feasibility of repetitive fMRI imaging in mice models after NeoRT. With these models, we show a significant peak of the perfusion factor (F) at day 6 or day 3. This change occurs between the two previous time points of surgery demonstrating a difference in the metastatic spreading. Indeed, after a NeoRT of 2X5Gy we observed more metastases in the lung when MDA-MB 231 tumor bearing mice are operated 4 days after RT compared to 11 days. These preliminary results are very promising for identifying noninvasive markers for determining the best timing for surgery. [less ▲]

Detailed reference viewed: 26 (8 ULg)
Peer Reviewed
See detailEnhanced biomass production of a novel Acetobacter strain isolated from Moroccan biotopes using response surface methodology approach
Mounir, Majid ULg; Hamas, Khadija; Tamraoui, Khadija et al

Conference (2016, March 21)

The objective of this work was first the isolation of novel acetic acid bacteria strains from natural Moroccan habitats, and then, the evaluation of their ability to produce microbial starters for vinegar ... [more ▼]

The objective of this work was first the isolation of novel acetic acid bacteria strains from natural Moroccan habitats, and then, the evaluation of their ability to produce microbial starters for vinegar production in large-scale. The isolation was made from figs, dates, cactus, and traditional fruit vinegars. Four strains, selected from a total of 63 isolates were confirmed to be belonged to Acetobacter species according to biochemical tests and molecular study based on 16s rDNA sequence analysis. Acetic acid fermentation tests, performed on date and apple fermented juices by the selected Acetobacter strains, showed high capacity of acidification. The most efficient strain, isolated from cactus vinegar, yielded an acidity of about 42.5 g/L on apple juice. A cell growth optimization was carried out on the most efficient strain using the response surface methodology (RSM). The linear, quadratic and interaction effects of four factors; ethanol, acetic acid, glucose and pH were studied by the application of a central composite design. 30 experiments were designed to predict the maximum concentration of cell biomass. The optimal calculated values of ethanol, acetic acid, glucose and pH allowing the prediction of the maximum biomass production (2.2 g/L) were 28.18 g/L, 10.12 g/L, 15.15 g/L and 5.33, respectively. Subsequently, further batch fermentations were carried out in a 6 L lab-bioreactor using the optimased culture medium. The results were in line with the predict values. It was concluded that the studied strain is well suited to be used as parental strain to prepare a starter for vinegar fruit production. [less ▲]

Detailed reference viewed: 23 (2 ULg)
See detail“Rhythm and Repetition in Caryl Phillips’s Dancing in the Dark”
Mascoli, Giulia ULg

Conference (2016, March 20)

My proposal is to deal with Dancing in the Dark (London: Vintage, 2005), a novel by Caryl Phillips, a contemporary British author of Caribbean descent. This narrative is devoted to the Caribbean American ... [more ▼]

My proposal is to deal with Dancing in the Dark (London: Vintage, 2005), a novel by Caryl Phillips, a contemporary British author of Caribbean descent. This narrative is devoted to the Caribbean American entertainer Bert Williams (1874–1922) who was the first black performer in the Ziegfield Follies and it traces his frustrating life as a black performer who had to blackface. Like most of Phillips’s literary production, Dancing in the Dark is shaped by music, both thematically –there are scenes involving musical performances, lyrics interspersed throughout the novel– and formally through the recurrent and creative use of repetitions and meaningful variations in rhythm, and sonic effects. Indeed, various elements of sound are present through poetic language and forms to emphasize elements of rhythm: repetitive devices such as rhymes, meters and alliterations. My contention is that these rhythmic devices partake in the emotional impact of Phillips’s writing; sonic elements emphasize the musical properties of language, strike the reader and prevent them from forgetting the traumatic experience of Bert. Through repetition, they transfer the character’s traumatic experience into the writing and create a sense of sympathy with the reader which privileges immediate empathy. If Bert Williams has been largely forgotten until recently, I believe that Phillips’s rhythmic prose will enable Bert’s story to resonate in the reader’s mind long after closing the book. [less ▲]

Detailed reference viewed: 16 (4 ULg)
Peer Reviewed
See detailThe Islamic coinage of Barqa from the conquest up to the advent of the Fatimids
Bauden, Frédéric ULg

Conference (2016, March 19)

Detailed reference viewed: 26 (0 ULg)
Full Text
See detailLes pays émergents : vecteur de sécurité alimentaire en Afrique ? le cas du Brésil au Mozambique
WCusson, Gabrielle ULg

Conference (2016, March 19)

Cette communication a pour objectif d’analyser le rôle des pays émergents dans la coopération agricole en Afrique pour assurer la sécurité alimentaire et énergétique du continent, et plus particulièrement ... [more ▼]

Cette communication a pour objectif d’analyser le rôle des pays émergents dans la coopération agricole en Afrique pour assurer la sécurité alimentaire et énergétique du continent, et plus particulièrement celui du Brésil au Mozambique. Parmi les pays émergents, la Chine, l’Inde et le Brésil s’affichent dorénavant comme des puissances agricoles à l’échelle internationale et détiennent une expertise particulière qu’ils souhaitent partager avec l’Afrique afin de soutenir sa révolution agraire et son insertion au marché mondial. Cependant, cette coopération Sud-Sud (CSS) ne semble pas exempte de bénéfices politiques et commerciaux à l’égard des pays donateurs. Ainsi, les pays émergents proposent-ils un modèle de coopération et de développement différent et solidaire ou reproduisent-ils la structure d’aide traditionnelle Nord-Sud soutenue par les institutions financières internationales? Quels sont les intérêts des puissances émergentes à participer à la nouvelle révolution verte en Afrique ? Plus précisément, cette analyse portera sur la stratégie de CSS du Brésil au Mozambique via le projet ProSAVANA, un projet de coopération triangulaire développé avec le Japon qui vise le transfert du savoir-faire technique et technologique agraire du Brésil dans les savanes africaines à des fins de production de biocarburants; un enjeu clé pour le Brésil. Pour répondre à la question de recherche, nous confronterons le discours officiel du Brésil en terme de CSS avec la réalité qui se dessine au Mozambique. Pour ce faire, nous nous appuierons sur les théories critiques de la nouvelle économie politique. [less ▲]

Detailed reference viewed: 18 (0 ULg)
Full Text
See detailLes PCSK9 : la mort des statines ?
RADERMECKER, Régis ULg

Conference (2016, March 19)

Detailed reference viewed: 30 (5 ULg)
See detailGoro Gheri as the "perfect secretary"?
Miesse, Hélène ULg

Conference (2016, March 19)

Detailed reference viewed: 23 (0 ULg)
Full Text
Peer Reviewed
See detailWill Big Data Deliver Its Promised Productivity Growth?
Artige, Lionel ULg

Conference (2016, March 18)

Detailed reference viewed: 31 (1 ULg)
Peer Reviewed
See detailÉcrire (malgré) l'espace aéré. Yves Berger et Edward Abbey au seuil du parc national américain
Di Gregorio, Luca ULg

Conference (2016, March 18)

Edward Abbey et Yves Berger ont nourri l’essentiel de leurs œuvres de leur fascination commune pour l’Ouest américain : plus spécifiquement pour la région du Grand Bassin et le pays des canyons – pays de ... [more ▼]

Edward Abbey et Yves Berger ont nourri l’essentiel de leurs œuvres de leur fascination commune pour l’Ouest américain : plus spécifiquement pour la région du Grand Bassin et le pays des canyons – pays de sable et de grès, pays minéral, sidéral, qui concentre plusieurs des plus fameux parcs naturels des États-Unis. Mais si leur passion s’attache au même objet d’élection – les paysages sublimes du Sud-Ouest –, l’un et l’autre divergent par les voies qu’ils empruntent et les points de vue d’où ils se postent pour le goûter, et surtout pour en rendre compte par l’écriture. En effet, un Océan entier sépare leurs positions vis-à-vis de la nature américaine – mais pas uniquement : chacun représente aussi, pour son pays respectif, une bonne part de l’ethos et de l’habitus qui y valorise d’ordinaire l’écrivain. Ancien ranger saisonnier, Abbey est un écrivain activiste et baroudeur, s’affichant en prise directe avec le terrain, tandis que Berger, protagoniste influent du milieu littéraro-éditorial parisien, rêve d’Amérique en même temps qu’il siège parmi les jurés du Goncourt. En première analyse donc, rien, hormis une vague parenté de génération et un goût du Nouveau Monde, ne justifierait l’association de deux écrivains aussi éloignés l’un de l’autre. Mais nonobstant ce gouffre sociogéographique, ce qui, en dernière analyse, rapproche nos deux auteurs, réside dans l’obstacle commun qui perturbe leur abord de l’Amérique sauvage: le National Park Service et son immense réseau d’espaces aérés naturels, quadrillant, pour les protéger (et les promouvoir), les plus fameux paysages de l’Ouest. Là où Abbey rejoint Berger, et réciproquement, c’est dans cette façon de mal assumer l’importun isolant phénoménologique qu’est le parc, d’éprouver une nette complication à écrire et ressentir la Nature au travers de son interférence. Phénomène non-naturel par excellence, ce seuil que pose le parcage leur pose, à eux, un lourd problème, puisqu’il leur renvoie la part d’impossible du rapport qu’ils désirent cultiver avec le Grand Ouest. Là encore cependant, même cet « impossible » se manifeste différemment à chacun. Comment, pour le ranger Abbey, évoquer une intimité native avec le cosmos en dépit du cadenassage institutionnel dont il est partie prenante? Comment, pour le Français Berger, passer dignement en Amérique à la façon d’un vrai voyageur, en évitant de rendre l’effet d’un touriste anonyme, téléguidé par le balisage et la signalétique du parc naturel ? Heurtant le désir d’immanence à la wilderness de l’un, le parc compromet aussi l’aspiration au voyage authentique de l’autre : tel est le « problème » du parc, dont on analysera ici quelques symptômes et solutions poétiques au sein de deux œuvres ayant pour cadre la région des Four Corners1 : l’incontournable Desert Solitaire (1968) d’Abbey, véritable bible du Nature Writing en Amérique, dialoguera ainsi avec La Pierre et le Saguaro (Prix de la langue française, 1990) d’Yves Berger. Mais préalablement, et alors que le National Park Service fête cette année son centenaire, il convient de faire un rapide point théorique et phénoménologique sur ce qu’implique et recouvre l’objet culturel « parc américain ». [less ▲]

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailLes libéraux belges et le national-socialisme (1933-1945)
Brüll, Christoph ULg

Conference (2016, March 18)

Detailed reference viewed: 9 (0 ULg)
Full Text
See detail“Everything was losing definition and outline”: Re-membering Trauma Fiction in Gail Jones’s Sorry
Belleflamme, Valérie-Anne ULg

Conference (2016, March 18)

In an article, Australian novelist and essayist Gail Jones confesses of her novel Sorry that it has “a political-allegorical aspect – as one would expect, claiming such a title” (2008, 79). Published in ... [more ▼]

In an article, Australian novelist and essayist Gail Jones confesses of her novel Sorry that it has “a political-allegorical aspect – as one would expect, claiming such a title” (2008, 79). Published in 2007, that is, one year prior to the formal apology delivered by the Australian government to the Aborigines and Torres Strait Islanders, Sorry engages in a reflection on the ethics of reconciliation. Written in response to Jones’s wish to acknowledge the debt to the Stolen Generations, the novel also offers new possibilities of ethical mourning, allowing the dead to return and the voiceless to speak. My paper will seek to explore the ways in which Jones draws on trauma fiction to bypass not only the unsayable dimension of Australia’s history and what she elsewhere criticises as the trauma model’s “transferential gesture of victim surrogacy” symptomatic of postcolonising settler cultures (2004, 162) but also the representational difficulties inherent in trauma. Moreover, it is by introducing into her novel the concept of traumatic time, “a time that is broken, and […] recursive” (qtd. in Block 2008) and which mirrors on the level of form and structure the effects that trauma exerts on its victims, that Jones she recreates a narrative model that echoes an Australian discourse pre-dating the Bringing Them Home report – that is tinged with amnesia, fragmented memories, and silence –, against which she will assert her own counter-discourse. Works Cited: - Block, Summer. 09 May 2008. “Interview: Gail Jones.” Interview. January Magazine. Web. 16 Jan. 2013. - Jones, Gail. 2004. “Sorry-in-the-Sky: Empathetic Unsettlement, Mourning, and the Stolen Generations.” In Imagining Australia: Literature and Culture in the New New World, edited by Judith Ryan and Chris Wallace-Crabbe, 159-171. Cambridge, MA: Harvard University Press. - Jones, Gail. 2007. Sorry. London: Harvill Secker. - Jones, Gail. 2008. “Speaking Shadows: Justice and the Poetic.” In Just Words?: Australian Authors Writing for Justice, edited by Bernadette Brennan, 76-86. St Lucia: University of Queensland Press. [less ▲]

Detailed reference viewed: 36 (14 ULg)
Full Text
See detailMarker et mémoire
Pieron, Julien ULg

Conference (2016, March 18)

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailThe Bullshit Abstract: From Critique to Reflexive Practice
Van Oudheusden, Michiel ULg; Charlier, Nathan ULg; Claisse, Frédéric ULg

Conference (2016, March 17)

Academics use the abstract to summarize and communicate a research paper’s focus, methods, findings, and conclusions. However, not all abstracts are convincing. Many are bland, uninspired, or outright ... [more ▼]

Academics use the abstract to summarize and communicate a research paper’s focus, methods, findings, and conclusions. However, not all abstracts are convincing. Many are bland, uninspired, or outright stupid, as authors do not always know what they want to say or how to communicate complex research in the space of a few hundred words. They hence often convey the kind of “intelligent stupidity,” which Robert Musil (1937) said could hardly be “distinguished from talent, progress, hope or improvement.” By implication, abstracts are prone to contain and perpetuate “academic bullshit” (Frankfurt 2005), broadly understood as forms of academic expression that meet the stylistic academic standards but generate content that is deceptive, doubtful, or irrelevant. Taking this inherent disposition towards bullshit in the academic abstract as its entry point, this paper presents ten self-authored “bullshit abstracts,” which draw inspiration from various academic fields. Far from denouncing bullshit outright, it acknowledges the inevitable character of bullshit in academic writing (Eubanks and Schaeffer 2008). It urges academics to reflexively consider, and perform, their roles as researchers and writers in view of the challenges they face today, such as reputation management and the pressure in academia to publish or perish; and their complete lack of sensitivity to the odorous aspects of writing. [less ▲]

Detailed reference viewed: 83 (3 ULg)
Full Text
See detailLa Province au défi de la Sixième réforme de l'État
Grandjean, Geoffrey ULg

Conference (2016, March 17)

Detailed reference viewed: 22 (0 ULg)
Full Text
See detail“From another angle”: the Australian Reconciliation in Gail Jones’s Sorry and Five Bells
Belleflamme, Valérie-Anne ULg

Conference (2016, March 17)

On 26 May 2000, an estimated 250,000 people – Australian novelist and essayist Gail Jones included – walked across the Sydney Harbour Bridge in support of the Australian Reconciliation process. More ... [more ▼]

On 26 May 2000, an estimated 250,000 people – Australian novelist and essayist Gail Jones included – walked across the Sydney Harbour Bridge in support of the Australian Reconciliation process. More importantly, eight years later, Jones claimed that “in writing [her novel Sorry] [she] rehearsed [her] own concern that the reconciliation process not be forgotten – since it has certainly faded from the political agenda since the bridge walk of 2000[” (2008: 84). This and her claim that “the heartwarming Sorry Books [...] ought seriously to be considered within the genre of the poetics of political dissent, and not as casual or sentimental acts of mere signature” (2008: 164) are indicative of Jones’s writing and of her wish to subvert the stereotypical and ambiguous discursive manifestations of the Australian Reconciliation. By the same token, her novels Sorry (2007) and Five Bells (2011) offer a complex picture of the ethics of reconciliation, namely one that includes “an admission of uncertainty, a calculation of difficulty, and an awareness that justice – and human relations – is rarely written in black and white” (Jones 2008: 86). My paper will thus seek to explore how Jones, by drawing on forms of narrative indirections in both, Sorry and Five Bells, distances herself from white Australian writers who deal with the Stolen Generations in a way that seems to appropriate Aboriginal and Torres Strait Islander peoples’ experiences. Sorry and Five Bells, then, offer an alternative to standard reconciliation practices, with a view to bridging the gap between white Australia’s history and the history of the Aborigines. References: - Jones, Gail. 2008a. Sorry. London: Vintage. - Jones, Gail. 2008b. Speaking shadows: Justice and the poetic. In Just Words?: Australian Authors Writing for Justice, Bernadette Brennan (ed.). St Lucia, Qld.: University of Queensland, 76-86. - Jones, Gail. 2012. Five Bells. London: Vintage. [less ▲]

Detailed reference viewed: 25 (5 ULg)
Peer Reviewed
See detail"Parcours fléchés. Seuils et traversées dans l'œuvre de Marc-Antoine Mathieu"
Belloi, Livio ULg

Conference (2016, March 17)

Cette communication se propose d'étudier "Sens" (2014), le dernier album du dessinateur français Marc-Antoine Mathieu. Plus spécifiquement, il s'agissait, conformément au thème directeur du Congrès de St ... [more ▼]

Cette communication se propose d'étudier "Sens" (2014), le dernier album du dessinateur français Marc-Antoine Mathieu. Plus spécifiquement, il s'agissait, conformément au thème directeur du Congrès de St. Louis, d'examiner l'œuvre de Mathieu sous l'angle de son dispositif péritextuel (première de couverture, prologue, couverture intérieure). [less ▲]

Detailed reference viewed: 17 (1 ULg)
See detailComment lire les textes informatifs au début du secondaire?
De Croix, Séverine ULg

Conference (2016, March 17)

Pourquoi et comment apprendre à lire les textes informatifs dans les différentes disciplines au début de l'enseignement secondaire ? Pour tenter de répondre à cette double question, l'auteure s'efforce ... [more ▼]

Pourquoi et comment apprendre à lire les textes informatifs dans les différentes disciplines au début de l'enseignement secondaire ? Pour tenter de répondre à cette double question, l'auteure s'efforce tout d'abord d'identifier les spécificités de ces textes et des modes de lecture qu'ils impliquent. Elle propose ensuite quelques repères, fondés sur différents travaux de recherche récents, quant aux pratiques et dispositifs didactiques qui y sont adaptés. [less ▲]

Detailed reference viewed: 24 (2 ULg)
Full Text
Peer Reviewed
See detailNursing student’s perception of the educational efficiency between two strategies of education: Problem Based Learning and the High-Fidelity Simulation.
Servotte, Jean-Christophe ULg; Guillaume, Michèle ULg

Conference (2016, March 16)

Introduction: The teaching’s evolution in nursing education has to answer the challenge to stimulate the student’s skills development. According to literature review, it’s necessary to compare High ... [more ▼]

Introduction: The teaching’s evolution in nursing education has to answer the challenge to stimulate the student’s skills development. According to literature review, it’s necessary to compare High-Fidelity Simulation (HFS) with other pedagogical methods. Furthermore, the comparison with Problem Based Learning (PBL) was not studied yet. Methods: Two indicators were evaluated : student satisfaction self-confidence. For this, two validated scales were used : Student Satisfaction Learning Scale and Self-Confidence in Learning Using Simulations Scale. 141 nursing’s students were involved in the study. They were exposed to the two pedagogical methods (PBL and HFS). The experience was organized according a complete cross plan. Results: The results demonstrated a higher level of the student’s confidence and the student’s satisfaction in learning for the HFS compare to PBL. Carry-over effects were study. It was concerning the teaching style (questions 3 and 5) as well as the varieties of educational tools (questions 2 and 4). The perception of the value of the PBL during the second period was systematically lower while the score obtained for the HFS for the two periods remains almost identical. Conclusion: A clear superiority of the HFS compared with the PBL is perceived by the students. This result seems to open new opportunities with the HFS method in the education nursing student. Nevertheless, research must be conducted in order to better understand the value of this new pedagogic approach. [less ▲]

Detailed reference viewed: 16 (1 ULg)
Full Text
See detailEvaluation results of ECHAM-HAMMOZ
Schultz, Martin; Taraborrelli, Domenico; Franco, Bruno ULg et al

Conference (2016, March 16)

Detailed reference viewed: 28 (4 ULg)
Full Text
See detailFoot identification from digital 3D models of lion tracks and paws
Marchal, Antoine ULg; Lejeune, Philippe ULg; De Bruyn, Nico

Conference (2016, March 15)

Detailed reference viewed: 10 (3 ULg)
Full Text
See detailGel Beads to Investigate Sedimentation
Leleu, David ULg; Pfennig, Andreas ULg

Conference (2016, March 14)

Separation of liquid-liquid dispersions with multiple phases involves different interactions between the different dispersed species present in the system, which makes it difficult to predict e.g. the ... [more ▼]

Separation of liquid-liquid dispersions with multiple phases involves different interactions between the different dispersed species present in the system, which makes it difficult to predict e.g. the separation behaviour. Nevertheless such systems are relevant in chemical engineering e.g. for systems involving gas bubbles and simultaneously solid particles like in a fermentation broth. Models for describing the sedimentation behaviour as a basis for settler design are available in principle but have not been systematically validated for variation in size-distribution and e.g. density differences between the various species in the system. Thus, to design technical separation equipment, the separation process has to be better understood, which requires the study of the sedimentation as a first step. This project is focused on the interactions which may occur between each species during the sedimentation e.g. the effect on sedimentation of descending particles when they meet ascending drops. However, a proper study of the sedimentation with fluid phases is difficult due to other phenomena occurring simultaneously, e.g. coalescence. To overcome this issue, the use of gel beads is proposed, which due to their solid interface cannot coalesce. In addition, it is easy to define their parameters which are the density, the hardness and the size distribution. Besides, they can also be preserved during an extended period of time, experiments can thus be reproduced many times with identical beads. During the project, gel beads are designed with different particle size distributions and with different densities. Different batches of the produced gel beads will be mixed to simulate systems with different dispersed phases discriminated via density and different size distributions. With these multiple dispersed phases Experiments will be performed in a settling cell in order to evaluate the overall sedimentation velocity at certain hold up. Simultaneously a new method for measurement of local hold-up profile in the dispersion is tested, which allows hold-up measurement even in opaque systems. Finally sedimentation models found in the literature are compared and adapted to experimental results for predict the sedimentation of systems which involve different dispersed phases. In the presentation the new hold-up measurement will be presented together with an error analysis, experiments on the sedimentation of multiple dispersed phases and the model evaluation will be presented. [less ▲]

Detailed reference viewed: 28 (4 ULg)
Full Text
See detailOpening risk gouvernance with a vigilance system: lessons learned from the Blue Tongue Virus outbreak in 2006
Fallon, Catherine ULg

Conference (2016, March 14)

This contribution results from a field research by a multidisciplinary group of veterinary and political scientists and gives an analyses of the transformations of an epidemiosurveillance governance ... [more ▼]

This contribution results from a field research by a multidisciplinary group of veterinary and political scientists and gives an analyses of the transformations of an epidemiosurveillance governance system dedicated to animal diseases, when confronted to new emerging threats in the wake of global changes (Fallon et al., in Vertigo 12(3) 2012) . The research field refers to the emergence of bluetongue virus serotype 8 in 2006 in Belgium and it mobilises the results of a survey based on Delphi method involving relevant public servants and scientists, which showed that most of the means proposed by the authorities are based on the logic of known risk management. However we can identify attempts for renewal and organisational learning, especially with the proposal of a new vigilance system, which allows open discussion and reporting through the decision process. In terms of prevention and anticipation of the adverse event), these changes are intended to accommodate the surveillance system reactivity against uncertain and unforeseen events. We question the problems faced by this transformation and its potential for enriching and reconfiguring the conceptualisation of risk management which is currently dominant in the sector. Finally the article identifies two drivers for change in the governance network : by admitting the persistence of unavoidable cognitive uncertainty and by recognizing the importance for opening up arenas of expert knowledge. [less ▲]

Detailed reference viewed: 45 (1 ULg)
See detailGetting on Board but How? Conflicting Perspectives on the Role of the Social Sciences and Humanities in Radiation Protection
Van Oudheusden, Michiel ULg; Rossignol, Nicolas ULg; Perko, Tanja et al

Conference (2016, March 14)

In Europe, science research policy is predicated on the understanding that science and technology (S&T) serve societal needs. Accordingly, European Framework Programs urge scientists and technologists to ... [more ▼]

In Europe, science research policy is predicated on the understanding that science and technology (S&T) serve societal needs. Accordingly, European Framework Programs urge scientists and technologists to give due attention to societal and ethical aspects of S&T, and to engage with social scientists and humanists when doing research and reaching out to society. Starting from these policy prescriptions and from invitations from befriended life scientists to "get on board," we explore the terms of our involvement as social scientists and humanists in a European Joint Program on radiation protection research (EJP-CONCERT). We illuminate recurring tensions between instrumental, normative, and substantive perspectives on the role of the social sciences and humanities (SSH) in radioprotection research and nuclear S&T. Our aim is to shed light on the controversial and contingent nature of integrating SSH into nuclear S&T, as actors articulate divergent assumptions and expectations about SSH and society. These expectations pertain to the value of SSH research for S&T, issues of trust and legitmacy, and different perspectives on risk and uncertainty. By rendering these tensions explicit we seek to probe the implications for SSH of developing a separate SSH Strategic Research Agenda (SRA) within radiation protection research. [less ▲]

Detailed reference viewed: 27 (3 ULg)
Peer Reviewed
See detailThe roads of colouring materials: from sources to residues
Pradeau, Jean-Victor; Dayet, Laure; Salomon, Hélène ULg

Conference (2016, March 11)

Economic systems and social relationships gain an increasing complexity in prehistoric periods. Despite their symbolic value and their informative potential in these issues, colouring materials (“ochre” ... [more ▼]

Economic systems and social relationships gain an increasing complexity in prehistoric periods. Despite their symbolic value and their informative potential in these issues, colouring materials (“ochre”, iron oxi(hydrxi)des, cinnabar, etc.) had received scant attention compare to obsidian, flint, metals or igneous rocks. Since the 2000’s, trace elemental analysis (PIXE, XRF, INAA, ICP-MS) and petrographic studies give keys to collect gitological and sourcing data. This methodology has recently improved quantitative knowledge on colouring material’s acquisition modalities and on global technic system itself. Contrasting situations are indeed highlight: archaeological corpus may consist of several raw colouring materials, unequally shared, providing from site range, close diffusion area or far diffusion area. Furthermore, the status of the different geomaterials, the diffusion modalities – direct acquisition, direct or indirect exchanges – and the identity of exporters, transporters and receivers (if any) stay unclear. Two main topics should liven up this session: a fruitful debate on different methodologies depending on geographical contexts and diachronic revue of colouring material procurement through the lens of cultural contexts and site’s status. [less ▲]

Detailed reference viewed: 31 (0 ULg)
Full Text
Peer Reviewed
See detailTransient neonatal diabetes mellitus due to paternal uniparental disomy of chromosome 6.
FUDVOYE, Julie ULg; Farhat, Khaldoun; Nicolescu, Ramona

Conference (2016, March 10)

Detailed reference viewed: 25 (1 ULg)
Full Text
See detailThe Macroeconomics of PAYG Pension Schemes in an Ageing Society
Artige, Lionel ULg

Conference (2016, March 10)

Detailed reference viewed: 20 (1 ULg)
Full Text
See detailL'ENMG...c'est le pied
WANG, François-Charles ULg

Conference (2016, March 10)

Detailed reference viewed: 19 (4 ULg)
See detailIntroduction au séminaire
Francois, Jeromine ULg; Regibeau, Julien ULg

Conference (2016, March 09)

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailSpecialization SIAMU : past, present and future
Servotte, Jean-Christophe ULg

Conference (2016, March 08)

Présentation de l'histoire de la spécialisation SIAMU avec un focus sur la simulation.

Detailed reference viewed: 18 (1 ULg)
Full Text
See detailThe Many AUrorae of Jupiter : Auroral Ffilaments, Flares, Transient features of the main oval, Swirls, Polar dawn spots, Injection signatures and Satellite footprints
Bonfond, Bertrand ULg

Conference (2016, March 07)

The presentation is a review of the many features of the Jovian aurorae in the frame of the imminent arrival of the Juno spacecraft around Jupiter, with a special focus on the most recent results.

Detailed reference viewed: 3 (0 ULg)
Peer Reviewed
See detailPropositions pour penser la notion d'erreur en photographie
Havelange, Carl ULg

Conference (2016, March 04)

Detailed reference viewed: 16 (0 ULg)
Peer Reviewed
See detailRepeated Behavioral Assessments in Patients with Disorders of Consciousness
Wannez, Sarah ULg; Annen, Jitka ULg; Aubinet, Charlène ULg et al

Conference (2016, March 04)

The Coma Recovery Scale Revised (CRS-R) is considered as the most sensitive scale to assess patients with disorders of consciousness (DOC). Guidelines recommend repeated assessments because patients might ... [more ▼]

The Coma Recovery Scale Revised (CRS-R) is considered as the most sensitive scale to assess patients with disorders of consciousness (DOC). Guidelines recommend repeated assessments because patients might suffer from consciousness fluctuations, but it is not specified how many assessments are needed. The present study included 131 patients with DOC. They have been assessed at least 6 times during a 14-days period with the CRS-R. Results show that 5 CRS-R assessments are needed to reach a reliable diagnosis, and that all the CRS-R subscales are influenced by consciousness fluctuations. We here showed that consciousness fluctuations influence the behavioral diagnosis, and that 5 assessments within a short period of time are needed to get a reliable clinical diagnosis. [less ▲]

Detailed reference viewed: 56 (12 ULg)
Full Text
See detailEuthanasie et don d'organes
DETRY, Olivier ULg

Conference (2016, March 04)

Detailed reference viewed: 38 (3 ULg)
Full Text
See detailRelative positioning with Galileo E5 AltBOC code measurements
Deprez, Cécile ULg

Conference (2016, March 03)

Depuis une dizaine d’années, l’Europe développe son propre système de positionnement par satellites (ou Global Navigation Satellites System (GNSS) en anglais), connu sous le nom de Galileo. À la pointe de ... [more ▼]

Depuis une dizaine d’années, l’Europe développe son propre système de positionnement par satellites (ou Global Navigation Satellites System (GNSS) en anglais), connu sous le nom de Galileo. À la pointe de la technologie, les horloges atomiques embarquées à bord de ses satellites ainsi que les signaux transmis par ces derniers sont extrêmement prometteurs dans beaucoup de domaines. Bien que toujours en phase de test à l’heure actuelle, ce système a déjà conduit à de premières mesures, notamment en matière de positionnement. Parmi ces nouvelles technologies, un signal en particulier semble très prometteur : Galileo E5, aussi appelé Galileo E5a+b ou encore Galileo E5 AltBOC. Ce signal permet d’effectuer des mesures de code et de phase plus précises. Il est également moins sensible au multi-trajet. Grâce à ses caractéristiques innovantes, Galileo E5 devrait permettre d’estimer des positions avec une précision supérieure à tous les autres signaux utilisés aujourd’hui. Une étude comparative des positions estimées avec les systèmes GPS (américain) et Galileo (européen) sur leurs différentes fréquences émises (GPS L1, GPS L2, GPS L5 pour GPS et Galileo E1, Galileo E5a, Galileo E5b et Galileo E5 AltBOC pour Galileo) a été menée dans ce mémoire. Pour ce faire, une combinaison d’observations appelée double différence (DD) est utilisée sous différentes configurations (ligne de base nulle (ZB), courte (SB) et moyenne (MB)) de récepteurs GNSS. Les récepteurs utilisés appartiennent à l’Université de Liège (2 récepteurs Trimble NetR9, 1 récepteur Septentrio XS et un récepteur Septentrio X4). Il ressort de cette étude que Galileo E5 AltBOC présente les observations les plus précises (en ZB, toutes sources d’erreurs éliminées). L’analyse démontre également qu’une précision de l’ordre de quelques décimètres sur la position à déterminer peut être atteinte avec les codes transmis par le signal Galileo E5, et ce jusqu’à 25 kilomètres de distance. [less ▲]

Detailed reference viewed: 31 (4 ULg)
See detailMetamorphosing cultural patterns: Cassirer in the steps of Warburg on Culture Theory
Hagelstein, Maud ULg

Conference (2016, March 03)

My argument stems from a reading of the fifth study in Cassirer’s The Logic of the Cultural Sciences (1942), devoted to the “Tragedy of Culture.” I contend that this fifth study resolves an observable ... [more ▼]

My argument stems from a reading of the fifth study in Cassirer’s The Logic of the Cultural Sciences (1942), devoted to the “Tragedy of Culture.” I contend that this fifth study resolves an observable indecision in Cassirer’s position on cultural productions: to lead man toward greater happiness and freedom, should one strive to uphold traditional forms, or should one abandon old models and create new ones? I believe that Cassirer’s consideration of art historian Aby Warburg’s works (1866-1929) constitutes a defining moment in understanding his answer to that question. This fifth study illustrates the profound impact of Warburg’s model for understanding culture on Cassirer’s philosophy. Contrary to the claims of some exegetes, Cassirer and Warburg’s theoretical positions on the matter are very close. Cassirer’s treatment of the reception of artistic forms (he argues that form reception is never merely a passive act) follows, point by point, Warburg’s theory of the survival (Nachleben) of artistic motifs. [less ▲]

Detailed reference viewed: 51 (1 ULg)