References of "Scientific congresses and symposiums"
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See detailGondwanan Palaeozoic plant spores: A review
Steemans, Philippe ULg; Gerrienne, Philippe ULg

Conference (2016, April 15)

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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 ▲]

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See detailEffects of new potential prebiotics on Salmonella Thyphimurium in pigs
Tran, Thi Hanh Tham; Everaert, Nadia ULg; Boudry, Christelle et al

Conference (2016, April 15)

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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 ▲]

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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)

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See detailThe Prosecution of Grave Crimes as a Global Interest Warranting Lesser Rights for Defendants before International Criminal Tribunals?
Deprez, Christophe ULg

Conference (2016, April 15)

With a view to clarifying the human rights obligations of international criminal tribunals, this presentation addressed the European Court of Human Rights' perspective on whether, in criminal cases, the ... [more ▼]

With a view to clarifying the human rights obligations of international criminal tribunals, this presentation addressed the European Court of Human Rights' perspective on whether, in criminal cases, the gravity of alleged offences may be a relevant factor in determining the scope of defense rights. [less ▲]

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See detailAnalgesia monitoring
BONHOMME, Vincent ULg

Conference (2016, April 14)

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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 ▲]

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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.

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See detailImpact of tillage practices on soil moisture dynamics in a temperate climate: potential of 3-D electrical resistivity tomography (ERT)
Chelin, Marie ULg; Hiel, Marie-Pierre ULg; Blanchy, Guillaume et al

Poster (2016, April 12)

Adapted agricultural soil management practices can enhance soil health by providing improved aggregate stability and soil structural quality. Hence water infiltration may be improved and plant water ... [more ▼]

Adapted agricultural soil management practices can enhance soil health by providing improved aggregate stability and soil structural quality. Hence water infiltration may be improved and plant water availability increased. In this study, we aim at quantifying the effect of tillage practices on the water dynamics in a loamy soil under temperate climate (Gembloux, Belgium). Therefore, we evaluated the ability of electrical resistivity tomography to estimate the water content at the field scale and under complex field conditions: varying pore water conductivity, rainfall, crop water uptake, root growth, varying temperature and changing soil structure due to tillage practices. During the summer of 2015, we studied four different treatments: conventional spring and winter tillage, strip tillage and a bare soil. We used ERT to estimate the spatio-temporal distribution of soil moisture. In each of the plots, 2 time-domain reflectometry (TDR) probes and 2 suction cups were installed. A calibration trench was constructed with 4 electrodes, 1 TDR probe and 1 temperature sensor at 4 different depths. We quantified changes of porosity over the growing season using X-ray tomography. Combining these data, we will investigate and quantify the effect of simultaneously changing pore water conductivity, soil porosity, soil temperature and soil moisture on the effectiveness of time-lapse ER measurements as a proxy for soil moisture changes under different tillage practices. [less ▲]

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See detailGenotypic characterization of T. mentagrophytes complex strains circulating in Belgium with the Diversilab® system.
SACHELI, Rosalie ULg; Utri, Tania ULg; ADJETEY BAHUN, Akolé ULg et al

Poster (2016, April 09)

Background Infections due to the zoophilic dermatophyte Arthroderma benhamiae are being more frequently diagnosed in Belgium since a few years. The most common source of infection is guinea pigs. This ... [more ▼]

Background Infections due to the zoophilic dermatophyte Arthroderma benhamiae are being more frequently diagnosed in Belgium since a few years. The most common source of infection is guinea pigs. This species which is referred to the Trichophyton species of A.benhamiae can cause tinea capitis, tinea corporis, tinea manus and more frequently tinea faciei. These strains appear with a bright yellow thallus in culture and do not easily sporulate making them difficult to identify. Sequencing of these strains reveals “Arthroderma benhamiae”. At the contrary white strains of T. mentagrophytes complex are identified by sequencing as “T. mentagrophytes variety interdigitale” or T. interdigitale. The aim of the study is the evaluation of the genetic heterogeneity of these two subtypes of the T. mentagrophytes complex by using the DiversiLab® system. Material and methods 32 strains were collected by the National Reference Center for mycoses between 2012 and 2015. The fungal strains were identified by microscopy or ITS sequencing. All strains appearing white with a yellow pigment in culture and being identified as “A. benhamiae” by DNA sequencing were included as well reference strains. Some selected strains appearing white in culture and being identified as “T. mentagrophytes var. interdigitale” by DNA sequencing were also included. The genotypic analysis was performed by the DiversiLab® system (bioMérieux) by DNA fingerprinting generation. Results Both groups showed huge differences in DNA fingerprints. The similarity calculated by the DiversiLab® tool between the two groups was 70%. This reflects a high genotypic heterogeneity regarding the two types of strains analyzed. This is surprising given that both groups belong to the same species complex. The comparison of these two distinct DNA fingerprints with the mold database of bioMérieux generated identification as “T. mentagrophytes” for both groups. We noticed that the library contained two distinct patterns of DNA fingerprints (profile 1, strains MK55-60 and profile 2, strains MK138-143). Yellow strains were highly similar to profile 1 and white strains were highly similar to profile 2. Unfortunately, no additional information regarding the subspecies implicated could be obtained from the manufacturer. However, this study demonstrates that it may represent respectively “yellow strains types Trichophyton species of A. benhamiae” and “ white strains types T. interdigitale”. Conclusion This study highlights the genotypic differences between two types of strains belonging to the T. mentagrophytes species complex. Yellow strains which incidence is increasing in Belgium are clearly different from other strains previously characterized and the DiversiLab® method shows a high efficiency for discriminating between these two species difficult to separate by microscopy. [less ▲]

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See detailThe body beautiful : Feminist bodies as territories of resistance
Herbert, Emilie ULg

Conference (2016, April 09)

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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 ▲]

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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)

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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 ▲]

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See detail"Living on the Edge of Death": Irony in Chris Abani's Song for Night
Tunca, Daria ULg

Conference (2016, April 07)

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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)

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See detailRecent progress in the development of a hydrogen maser in the TE111 mode
Van Der Beken, Emeline ULg; Léonard, Daniel; Counet, Arnaud et al

Poster (2016, April 06)

We present the recent progress in the development of a hydrogen maser in the unusual TE111 mode. In contrast to standard hydrogen maser that exploits the TE011 mode, the TE111 mode allows one to design ... [more ▼]

We present the recent progress in the development of a hydrogen maser in the unusual TE111 mode. In contrast to standard hydrogen maser that exploits the TE011 mode, the TE111 mode allows one to design hydrogen masers with significant reduced dimensions which represents a huge benefit for space applications and in particular for the global positioning system. We present in details the different parts of our model : cavity with a thin Teflon sheet, magnetic shielding, temperature control of the maser... [less ▲]

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See detailNew conservative and regenerative treatments for cartilage and tendon lesions
Kaux, Jean-François ULg

Conference (2016, April 05)

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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 ▲]

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See detailComment reconnaître les activités spontanées en EMG
WANG, François-Charles ULg

Conference (2016, April 05)

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See detailGeneralized Pascal triangle for binomial coefficients of finite words
Stipulanti, Manon ULg

Poster (2016, April 05)

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

Abstract. We introduce a generalization of Pascal triangle based on bino- mial 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 ▲]

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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 ▲]

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See detailSNP development from RADseq data for the non-model species Robinia pseudoacacia L.
Verdu, Cindy; Guichoux, Erwan; Quevauvillers, Samuel et al

Poster (2016, April 04)

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See detailCoupling the Electron and Phonon Baths via the Boltzmann Transport Equations
Pike, Nicholas ULg

Poster (2016, April 03)

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See detailEpisodic memory and aging: The effect of perceptual processing fluency on recognition memory processes
Bastin, Christine ULg; Willems, Sylvie ULg

Poster (2016, April 03)

Normal aging is characterized by decreased recollection, but better preserved familiarity. Memory tasks that facilitate the use of familiarity should allow attenuating age-related differences in memory ... [more ▼]

Normal aging is characterized by decreased recollection, but better preserved familiarity. Memory tasks that facilitate the use of familiarity should allow attenuating age-related differences in memory. The study tested two hypotheses: (1) can the reliance on familiarity during recognition memory be promoted by increasing the difference in perceptual processing fluency between old and new items; (2) can this manipulation reduce age-related difficulties in episodic memory? Twenty-four young and 24 older adults performed two verbal recognition memory tasks. In the No-Overlap task, target words and new words did not share any letter. Prior exposition to the target words thus induced increased processing fluency of the words and letters, so that fluency difference was a salient and reliable cue to discriminate between old and new words. In the Overlap task, target and new words had letters in common, so fluency cues were less useful. Recollection and familiarity was assessed with the Remember/Know/Guess paradigm. The results showed an age effect on recollection but intact familiarity. Moreover, (1) memory performance was better in the No Overlap than the Overlap task, with a greater hit rate and a smaller false alarm rate associated with familiarity. And, (2) age-related differences in recognition accuracy (hits – false alarms) were significantly attenuated in the No Overlap task compared to the Overlap task. These findings suggest that minimizing the perceptual similarity between targets and distractors, and thus increasing processing fluency differences, allowed to reduce the effect of age on recognition memory performance by facilitating the use of familiarity. [less ▲]

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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 ▲]

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See detailLa violence conjugale : persévérance vs abandon des auteurs masculins lors de leur participation à un groupe de responsabilisation
Di Piazza, Laetitia ULg; Kowal, Cécile; Hodiaumont, Fabienne et al

Poster (2016, April 02)

Le phénomène d'abandon thérapeutique lors de suivi dans le cadre de violence conjugale se trouve au cœur des préoccupations des intervenants venant en aide aux auteurs de ces violences. Ces thérapies en ... [more ▼]

Le phénomène d'abandon thérapeutique lors de suivi dans le cadre de violence conjugale se trouve au cœur des préoccupations des intervenants venant en aide aux auteurs de ces violences. Ces thérapies en groupe de responsabilisation se caractérisent par un taux d'abandon élevé, avec le risque potentiel de récidive associé. L’objectif de cette étude est d’identifier d’éventuelles caractéristiques intrapsychiques permettant de distinguer les usagers qui terminent leur suivi thérapeutique de ceux qui abandonnent au cours de celui-ci. Pour ce faire, une comparaison au sein de ces deux groupes d’individus (abandon : n=23 ; accomplissement du suivi : n=28) a été réalisée à partir de données sociodémographiques et de variables psychologiques spécifiques évaluées par des questionnaires auto-administrés (TAS-20, BIS-11, BDI, PBI, LEDS). Les résultats statistiques montrent que l’âge, le nombre d’événements stressants vécus au cours des six mois précédents l’évaluation et l’appréciation du soutien à l’autonomie perçu vis-à-vis de leur père sont les seules variables qui diffèrent significativement entre les deux groupes. Les autres dimensions mesurées telles que la dépression, l’alexithymie et l’impulsivité, quant à elles, ne produisent pas de résultats significatifs entre les deux groupes. Il semble donc, en définitive, que les hommes plus jeunes présenteront plus de risque de quitter le programme de façon précoce. Malgré tout, l’ensemble de ces résultats pose un sérieux défi pour les intervenants au sein des services d’aide spécialisés. En effet, si tous les individus qui participent aux groupes de responsabilisation présentent les mêmes caractéristiques intrapsychiques, comment prédire, mais surtout accrocher ceux qui abandonneront le programme ? [less ▲]

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See detailExploring the effect of a second closely-timed infiltration of platelet-rich plasma to treat proximal patellar tendinopathies
Kaux, Jean-François ULg; CROISIER, Jean-Louis ULg; FORTHOMME, Bénédicte ULg et al

in European Journal of Physical and Rehabilitation Medicine (2016, April), 54(Suppl. 1 No. 2), 199

Intorduction: Some clinical series have evaluated the effect of platelet-rich plasma (PRP) in the treatment of jumper’s knee. Although it is possible that a single infiltrative administration may prove to ... [more ▼]

Intorduction: Some clinical series have evaluated the effect of platelet-rich plasma (PRP) in the treatment of jumper’s knee. Although it is possible that a single infiltrative administration may prove to be an effective treatment for this indication, most of the existing studies evaluated the effects of 2 or 3 successive infiltrations. Purpose: The aim of this study was to evaluate whether 2 infiltrations of PRP proves more effective than a single treatment. Methods: Twenty patients suffering from chronic jumper’s knee were enrolled into the study and split into two randomized groups (1 or 2 infiltrations of PRP, respectively). The 3-month follow-up evaluation consisted of VAS, IKDC and VISA-P scores, along with algometer, isokinetic and ultrasounds evaluations. After 1 year, subjects were contacted to define their functional evolution. Results: The concentration of the PRP used for each infiltration was similar in both groups, and contained no red or white cells. Results revealed no difference in treatment efficacy between the groups. Discussion and Conclusion: The comparison between 1 or 2 infiltrations of PRP did not reveal any difference between the 2 groups at short to mid term. A second closely-timed infiltration of PRP to treat jumper’s knees is not necessary to improve the efficacy of this treatment in the short term. A second infiltration should perhaps be envisaged later, but this remains to be demonstrated. [less ▲]

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See detailMAVEN Imaging UV Spectrograph Results on the Mars Atmosphere and Atmospheric Escape
Chaffin; Schneider; McClintock et al

Conference (2016, April)

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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)

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See detailMars Topography Investigated Through the Wavelet Leaders Method: a Multidimensional Study of its Fractal Structure
Deliège, Adrien ULg; Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Poster (2016, April)

This work examines the scaling properties of Mars topography through a wavelet-based formalism. We conduct exhaustive one-dimensional (both longitudinal and latitudinal) and two-dimensional studies based ... [more ▼]

This work examines the scaling properties of Mars topography through a wavelet-based formalism. We conduct exhaustive one-dimensional (both longitudinal and latitudinal) and two-dimensional studies based on Mars Orbiter Laser Altimeter (MOLA) data using the multifractal formalism called Wavelet Leaders Method (WLM). This approach shows that a scale break occurs at approximately 15 km, giving two scaling regimes in both 1D and 2D cases. At small scales, these topographic profiles mostly display a monofractal behavior while a switch to multifractality is observed in several areas at larger scales. The scaling exponents extracted from this framework tend to be greater at small scales. In the 1D context, these observations are in agreement with previous works and thus suggest that the WLM is well-suited for examining scaling properties of topographic fields. Moreover, the 2D analysis is the first such complete study to our knowledge. It gives both a local and global insight on the scaling regimes of the surface of Mars and allows to exhibit the link between the scaling exponents and several famous features of the Martian topography. These results may be used as a solid basis for further investigations of the scaling laws of the Red planet and show that the WLM could be used to perform systematic analyses of the surface roughness of other celestial bodies. [less ▲]

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See detailOsteoarthritic sclerotic subchondral osteoblasts secreted elevated concentration of fibulin-3 fragments in vitro
Sanchez, Christelle ULg; Lambert, Cécile ULg; Comblain, Fanny ULg et al

in Osteoarthritis and Cartilage (2016, April), 24(suppl 1), 83

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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 ▲]

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See detailFirst steps of the regional climate model MAR over the Euro-CORDEX domain
Scholzen, Chloé ULg; Fettweis, Xavier ULg

Poster (2016, April)

In the framework of the Euro-CORDEX initiative, the Laboratory of Climatology of the University of Liège, Belgium, is currently using the regional climate model MAR (for “Modèle Atmosphérique Régional” ... [more ▼]

In the framework of the Euro-CORDEX initiative, the Laboratory of Climatology of the University of Liège, Belgium, is currently using the regional climate model MAR (for “Modèle Atmosphérique Régional”) to simulate the past, present and future climate over Europe. Simulations are to be performed for both available resolutions over the Euro-CORDEX domain, namely 0.11 deg. (12.5 km) and 0.44 deg. (50 km). Historical and present-day runs (1979-2015) will use the ERA-Interim and the NCEP/NCAR-v1 reanalyses as boundary conditions, whereas future projections will be driven by two selected GCMs from the CMIP5 database: NorESM1-M and MIROC5. All CMIP5-GCMs were previously compared against ERA-Interim reanalysis data in terms of their ability to represent the current mean climate over Europe. The GCMs also underwent a statistical classification based on the calculation of skill-scores evaluating for instance 850 hPa temperature and 500 hPa geopotential height. Several settings and parameters were tested in order to calibrate the regional climate model MAR over the Euro-CORDEX domain. MAR is to be validated against observations from the European Climate Assessment & Dataset (ECA&D). The final aim of this study is to assess the performance of MAR in comparing its results to other RCMs used within the Euro-CORDEX initiative. [less ▲]

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See detailMapping cortical modules, their connectivity and functions
Genon, Sarah ULg; Eickhoff, Simon

Conference (2016, April)

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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)

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See detailWhen the same hydraulics conditions lead to different depositional patterns: case of an idealised delta
Peltier, Yann; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Geophysical Research Abstracts (2016, April)

Deltas are complex hydrosystems and ecosystems resulting from the interactions of a river system with a water body almost at rest. Anthropogenic factors (hydropower, flood management, development in the ... [more ▼]

Deltas are complex hydrosystems and ecosystems resulting from the interactions of a river system with a water body almost at rest. Anthropogenic factors (hydropower, flood management, development in the floodplains) lead to dramatic changes in sediment transport in the rivers and in sediment management practice. From continuous, the sediment transport becomes increasingly intermittent, with long periods of deficit in the sediment supply and short periods characterized by large supplies. Understanding how these intermittencies in the sediment supply affect the delta morphodynamics is of paramount importance for predicting the possible evolution and functioning of deltas. Deltas can reasonably be idealised as a reservoir, with an inlet channel representing the river and the sud- den enlargement of the reservoir representing the water body at rest. Using such an ideal configuration enables the assessment of the influence of individual geometric and hydraulic parameters on the depositional patterns responsible for the morphodynamic evolution of the delta. Recent literature has shown that for very similar hydraulic boundary conditions, two very different types of flow fields may develop (“straight jet” vs. “meandering jet”), leading to totally different depositional patterns. In turn, these distinct depositional patterns affect the flow itself through a two-way coupling between the hydrodynamics and the morphodynamics of the deposits. These complex processes will be discussed in the proposed presentation, based on the results of over 160 experimental tests and corresponding numerical simulations. [less ▲]

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See detailEfficacy and safety of glucosamine sulfate in the management of osteoarthritis: Evidence from real-life setting trials and surveys.
Reginster, Jean-Yves ULg

in Osteoporosis International (2016, April), 27(supplement 1), 65

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See detailReview of soluble biomarkers of osteoarthritis: lessons from animal model
Legrand, Catherine ULg; Lambert, Cécile ULg; Comblain, Fanny ULg et al

in Osteoarthritis and Cartilage (2016, April), 24(suppl 1), 88

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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 ▲]

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See detailA randomized double-blind study of Denosumab (DMAB) compared with Zoledronic acid (ZOL) in postmenopausal women with osteoporosis previously treated with oral bisphosphonates
Miller, P.; Pannacciulli, N.; Brown, J.P. et al

in Osteoporosis International (2016, April), 27(SUPPLEMENT1), 42

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See detailPhysical and muscle performances among elderly nursing home residents.
Buckinx, Fanny ULg; Reginster, Jean-Yves ULg; Croisier, Jean-Louis ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 217

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See detailEnglish translation and cross-cultural adaptation of the SarQuoL® questionnaire.
Beaudart, Charlotte ULg; Edwards, M.; Dennison, E.M. et al

in Osteoporosis International (2016, April), 27(Supplement 1), 221-222

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See detailInfluence of the ionospheric model on DCB computation and added value of LEO satellites
Wautelet, Gilles ULg; Lestarquit, Laurent; Loyer, Sylvain et al

Poster (2016, April)

In order to compute inter-frequency Differential Code Biases (DCBs), the Geometry-Free combination of a GNSS signal pair needs to be corrected from the ionospheric refraction effect. Such information is ... [more ▼]

In order to compute inter-frequency Differential Code Biases (DCBs), the Geometry-Free combination of a GNSS signal pair needs to be corrected from the ionospheric refraction effect. Such information is obtained using either Global Ionospheric Maps (GIMs) or local models. In this work we investigate the influence of GIMs on the final value and precision of DCB solution. The study covers different ionospheric conditions, ranging from very quiet ionospheric background up to a severe ionospheric storm. In a first step, the Slant Total Electron Content (STEC) between GIMs is assessed as a function of receiver latitude, elevation mask and ionospheric conditions. Then, daily DCBs are estimated using these different GIMs, receiver and satellite contributions being separated using a zero-mean constraint. At last, an independent estimation of DCBs is performed using Low Earth Orbit (LEO) observations (such as JASON's GPS data). This solution is compared with our ground network solution and with DCBs coming from Analysis Centers (ACs) of the International GNSS Service providing ionospheric and DCB solutions. [less ▲]

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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 ▲]

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See detailreactive gases in the chemistry climate model ECHAM6-HAMMOZ
Schultz, Martin; Taraborrelli, Domenico; Stadtler, Scarlet et al

Conference (2016, April)

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See detailPrevalence of concomitant bone and muscle wasting in patients from the SarcoPhAge study.
Locquet, Médéa ULg; Beaudart, Charlotte ULg; Reginster, Jean-Yves ULg et al

in Osteoporosis International (2016, April), 27(supplement 1), 129

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See detailThe Fractal Nature of Mars Topography Analyzed via the Wavelet Leaders Method
Kleyntssens, Thomas ULg; Deliège, Adrien ULg; Nicolay, Samuel ULg

in Information Technology: New Generations (2016, April)

This paper studies the scaling properties of Mars topography based on Mars Orbiter Laser Altimeter (MOLA) data through the wavelet leaders method (WLM). This approach shows a scale break at 15 km. At ... [more ▼]

This paper studies the scaling properties of Mars topography based on Mars Orbiter Laser Altimeter (MOLA) data through the wavelet leaders method (WLM). This approach shows a scale break at 15 km. At small scales, these topographic profiles display a monofractal behavior while a multifractal nature is observed at large scales. The scaling exponents are greater at small scales. They also seem to be influenced by latitude and may indicate a slight anisotropy in topography. [less ▲]

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See detailEffectiveness of High Intensity Radial Shock Wave Therapy in The Treatment of Chronic Plantar Fasciitis
Demoulin, Christophe ULg; Vanderthommen, Marc ULg; Fromm, Aurélien et al

in European Journal of Physical and Rehabilitation Medicine (2016, April), 52(Suppl. 1 No. 2), 733

Introduction: Literature is scarce concerning the effectiveness of high dose radial extracorporeal shock wave therapy (ESWT). Therefore, the aim of this study was to investigate its effectiveness on pain ... [more ▼]

Introduction: Literature is scarce concerning the effectiveness of high dose radial extracorporeal shock wave therapy (ESWT). Therefore, the aim of this study was to investigate its effectiveness on pain, function and pressure pain threshold in patients with chronicplantar fasciitis (PF). Materials and Methods: Patients with a diagnosis of chronic (pain lasting for more than 3 months) uni- or bilateral PF with a history of failed conservative treatment were included. After a 6-week control period during which no treatment occurred, a 2-week treatment period followed by a three weeks of rest (cicatrization phase) was provided. The treatment period consisted of three radial ESWT sessions (2000 impulses of 10 Hz frequency per session with an energy flux density of 0,275mJ/mm2) separated by a one-weekinterval. Patient assessments (pain intensity, foot function and pressure pain threshold (PPT) at the site of maximum local tenderness disability) were conducted at baseline, after the 6-week control phase (pre-treatment) and at the end of the cicatrization phase (post-treatment). Results: Thirty patients (19 women (63.3%)) with chronic PF and a mean age of 51.9±11 years were included in the present study. No drop-out occurred throughout the study period. No changes were observed at the pre-treatment assessment session except for pain intensity which decreased slightly but significantly (P<0.05). At the post-treatment session, highly significant (P<0.001) and clinically meaningful changes occurred for pain intensity (-34%), foot function score (-60%) and PPT (+68%). Conclusions: The present study suggests that high dose radial ESWT is a feasible and effective way to quickly and significantly decrease pain and disability in most patients with chronic PF. [less ▲]

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See detailMise au point d’une nouvelle méthode de diagnostic des allergènes du froment par Western blot 2D
BERTHOLET, Catherine ULg; GADISSEUR, Romy ULg; Quinting, Birgit

in Revue Française d'Allergologie (2016, April), 56(3), 284

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See detailRhizosecreted proteases inhibition for the improvement of recombinant protein production in Arabidopsis thaliana
Lallemand, Jérôme ULg; Périlleux, Claire ULg; Tocquin, Pierre ULg

Poster (2016, April)

Plant-based biopharmaceuticals have gained a lot of interest in the past decade due to their reduced cost and relative safety compared to mammalian cell cultures. While the first plant-made recombinant ... [more ▼]

Plant-based biopharmaceuticals have gained a lot of interest in the past decade due to their reduced cost and relative safety compared to mammalian cell cultures. While the first plant-made recombinant proteins are now reaching the market, the production systems still need improvements to maximize their competitiveness. Optimizing production hosts requires the identification and subsequent inhibition of the most active endogenous peptidases, proteolysis being one of the main factors limiting yields. The aim of our study was to identify root-secreted proteases of Arabidopsis thaliana involved in target protein degradation (BSA) and inhibit them in vivo. Biochemical analyses identified serine proteases as the main class responsible for BSA degradation. An RT-qPCR experiment led to the choice of the serine protease gene SBT4.12 and its homologs as targets for an amiRNA-mediated silencing approach. Arabidopsis amiRNA-expressing lines showed lower levels of expression for SBT4.12 and reduced proteolytic activity in their rhizosecreted extracts. Crossing these lines with recombinant protein producing lines could lead to an improved production platform for proteins of interest. [less ▲]

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See detailA Refined Method for Estimating the Global Hölder Exponent
Nicolay, Samuel ULg; Kreit, Damien

in Latifi, Shahram (Ed.) Information Technology: New Generations (2016, April)

In this paper, we recall basic results we have obtained about generalized Hölder spaces and present a wavelet characterization that holds under more general hypothesis than previously stated. This ... [more ▼]

In this paper, we recall basic results we have obtained about generalized Hölder spaces and present a wavelet characterization that holds under more general hypothesis than previously stated. This theoretical tool gives rise to a method for estimating the global Hölder exponent which seems to be more precise than other wavelet-based approaches. This work should prove helpful for estimating long range correlations. [less ▲]

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See detailAnodal transcranial direct stimulation (tDCS) targeting the anterior cingulate gyrus for the preventive treatment of chronic cluster headache: a proof of concept trial.
MAGIS, Delphine ULg; D'Ostilio, Kevin ULg; Cosseddu, Anna et al

Poster (2016, April)

Background There is a need for better treatments in chronic cluster headache (CCH). In responders to percutaneous occipital nerve stimulation, the subgenual anterior cingulate gyrus (sACG) was found ... [more ▼]

Background There is a need for better treatments in chronic cluster headache (CCH). In responders to percutaneous occipital nerve stimulation, the subgenual anterior cingulate gyrus (sACG) was found hypermetabolic (Magis et al. 2011). We reasoned that activation of this area by transcranial neurostimulation could be effective in CCH. Aim To explore the preventive effect of anodal (i.e. activating) transcranial direct current stimulation (tDCS) targeting the anterior cingulate gyrus in CCH patients. Method & subjects Difficult-to-treat CCH patients with a stable preventive drug regimen applied tDCS (2mA) interictally in 20-minute daily sessions for 4 weeks with the anode positioned over the forehead (FpZ), the cathode over the C7 spinous process. Therapeutic effects were monitored with paper diaries. Results Nineteen patients were enrolled up to now. In 13 patients who completed the trial, mean weekly attack frequency decreased by 38% after 4 weeks of daily stimulation (W-test: p = 0.002). The 50% responder rate was 54%. Patients (n=12) reported an improvement in headache impact, as shown by 5-point decrease in the mean HIT-6 score (from 67 to 62, p = 0.02). In 10 patients who were followed up after the treatment period, the benefit remained stable up to 4 weeks after the last stimulation. The first 3 enrolled patients had superficial skin burns under the adhesive cathode electrode. Sponge electrodes were therefore used in all subsequent patients without any adverse effect. Conclusion Anodal tDCS targeting the anterior cingulate gyrus seems promising for the preventive treatment of chronic cluster headache as suggested by this ongoing proof-of-concept trial. Use of adhesive electrodes is not recommended. [less ▲]

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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 ▲]

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See detailAlpha-synuclein as biomarker in Parkinson’s disease: strategies for detection in CGE-LIF
Houbart, Virginie ULg; Napp, Aurore ULg; Rudaz, Serge et al

Poster (2016, April)

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See detailLes théories représentationnelles de l'esprit
Gauvry, Charlotte ULg

Conference (2016, April)

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See detailiPot: Improved potato monitoring in Belgium using remote sensing and crop growth modelling
Piccard, Isabelle; Gobin, Anne; Curnel, Yannick et al

Poster (2016, April)

Detailed reference viewed: 26 (7 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 ▲]

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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 ▲]

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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 ▲]

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See detailReview on the applications of directional impulse responses in room acoustics
Embrechts, Jean-Jacques ULg

in Actes du CFA 2016 (2016, April)

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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 ▲]

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See detailGood prognosis factors after a platelet rich plasma (PRP) injection for tendinopathies ?
Kaux, Jean-François ULg; Sancerne, Audrey; Libertiaux, Vincent ULg

in European Journal of Physical and Rehabilitation Medicine (2016, April), 52(suppl. 1 No. 2), 251

Introduction : Platelet-rich plasma injections are a recent treatment for chronic tendinopathies. However, this theraeutic remains controversed in litterature. Up to now, there is no prognosis factors ... [more ▼]

Introduction : Platelet-rich plasma injections are a recent treatment for chronic tendinopathies. However, this theraeutic remains controversed in litterature. Up to now, there is no prognosis factors identified to predict a good evolution after injection of PRP. Purpose: The aims of this study were to evaluate the effect of PRP injection followed by a standardized reeducation protocol among patients suffering from different tendinopathies and to determine the good prognosis factors, if any. Methods : 51 patients suffering from different tendinopathies and refractory to conventional physiotherapy were treated with a PRP injection. Prior to the injection, a blood sample was drawn and some biological parameters (glycemia, cholesterol level, …). A pain assessment was then made using a visual analog scale (VAS) and a pressure algometer. The same assessment was carried out after 6 weeks and 12 weeks when possible. Results : There is an overall significant improvement VAS score at the end of the 12 weeks follow- up. However, no correlation was found between the evolution of the clinical scores and the biological parameters measured. Discussion and Conclusions : A PRP injection followed by a program of eccentric rehabilitation positively affects the algo-functional scores of patients with tendinopathie who were refractory to conventional physiotherapy, whatever their initial biological parameters. [less ▲]

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See detailDesign optimization of large-size format edge-lit light guide units
Hastanin, Juriy ULg; Lenaerts, Cedric ULg; Fleury-Frenette, Karl ULg

in Proceedings of SPIE; SPIE 2016 Photonics Europe (2016, April)

In this paper, we present an original method of dot-pattern generation dedicated to design optimization of large-size format ELBUs (Edge-Lit Light Guide Unit), where the number of dots greatly exceeds the ... [more ▼]

In this paper, we present an original method of dot-pattern generation dedicated to design optimization of large-size format ELBUs (Edge-Lit Light Guide Unit), where the number of dots greatly exceeds the maximum allowable number of optical objects supported by most common ray-tracing software. In the proposed method, in order to simplify the computational problem, an original optical system is replaced by an equivalent one. Accordingly, the original dot pattern is splitted into multiple small sections. Then, these sections are replaced by equivalent cells with continuous diffusing film. After that, we adjust the TIS (Total Integrated Scatter) two-dimensional distribution over the grid of equivalent cells, using an iterative optimization procedure. Finally, the obtained optimal TIS distribution is converted into the dot size distribution by applying an appropriate conversion rule. An original semi-empirical equation dedicated to rectangular large-size LGPs (Light Guide Plate) is proposed for the initial guess of the TIS distribution. It allows significantly reducing the time needed to dot pattern optimization. [less ▲]

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See detailInfluence of plant roots on electrical resistivity measurements of cultivated soil columns
Maloteau, Sophie ULg; Blanchy, Guillaume ULg; Javaux, Mathieu et al

Poster (2016, April)

The goals of this experiment are to quantify the effect of plant roots on electrical resistivity of the soil subsurface and to map a plant roots system in space and time with ERT technique in a soil ... [more ▼]

The goals of this experiment are to quantify the effect of plant roots on electrical resistivity of the soil subsurface and to map a plant roots system in space and time with ERT technique in a soil column. For this research, it is assumed that roots system affect the electrical properties of the rhizosphere. Indeed the root activity (by transporting ions, releasing exudates, changing the soil structure,…) will modify the rhizosphere electrical conductivity (Lobet G. et al, 2013). This experiment is included in a bigger research project about the influence of roots system on geophysics measurements. Measurements are made on cylinders of 45 cm high and a diameter of 20 cm, filled with saturated loam on which seeds of Brachypodium distachyon (L.) Beauv. are sowed. Columns are equipped with electrodes, TDR probes and temperature sensors. Experiments are conducted at Gembloux Agro-Bio Tech, in a growing chamber with controlled conditions: temperature of the air is fixed to 20°C, photoperiod is equal to 14 hours, photosynthetically active radiation is equal to 200 µmol m-2s-1, and air relative humidity is fixed to 80 %. Columns are fully saturated the first day of the measurements duration then no more irrigation is done till the end of the experiment. [less ▲]

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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 ▲]

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See detailA New Wavelet-Based Mode Decomposition for Oscillating Signals and Comparison with the Empirical Mode Decomposition
Deliège, Adrien ULg; Nicolay, Samuel ULg

in Information Technology: New Generations (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 ▲]

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See detailNew elicitors as biocontrol tools to protect wheat against Septoria Tritici Blotch
Le Mire, Géraldine ULg; SIAH, Ali; Jijakli, Haissam ULg

Poster (2016, April)

Wheat is one of the most cultivated crops in the European Union. This cereal must however face important losses every year due to a major foliar disease known as Septoria Tritici Blotch (STB) caused by ... [more ▼]

Wheat is one of the most cultivated crops in the European Union. This cereal must however face important losses every year due to a major foliar disease known as Septoria Tritici Blotch (STB) caused by the fungus Zymoseptoria tritici. Disease control mainly depends on phytosanitary products. However, conventional agriculture is evolving towards more sustainable practices, out of respect for human health and the environment. Elicitors are considered as promising biological control tools and draw major interest in Integrated Pest Management strategies. These plant-immunity triggering compounds induce a general systemic resistance of the plant to a large spectrum of diseases. This study focuses on the screening of nine potential elicitors to protect winter wheat against Zymoseptoria tritici. Greenhouse trials were carried out to measure the ability of the different products to reduce disease foliar symptoms (necrosis, chlorosis and pycnidia). In addition, the biocide activity of these products towards the pathogen was evaluated under greenhouse and laboratory conditions. Furthermore, the modes of action of the best elicitors were investigated by studying the activity of some key defense enzymes of wheat. The corresponding results will be presented and discussed with the perspective to choose the two best elicitors for field trials and undertake further investigations on the signaling pathways triggered in the plant. [less ▲]

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See detailBrain-derived neurotrophic factor (BDNF) in normal healthy and hemodialyzed populations.
CAVALIER, Etienne ULg; CARLISI, Ignazia ULg; KOVACS, Stéphanie ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 512

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See detailThe future prevalence of sarcopenia in Europe
Ethgen, Olivier ULg; Tchoconte, C.; Beaudart, Charlotte ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 53-54

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See detailImproved Thévenin equivalent methods for real-time voltage stability assessment
Perez, Angel; Johannsson, Hjortur; Ostergaard, Jacob et al

in proc. IEEE ENERGYCON Conference (2016, April)

An improved Thévenin equivalent method for real-time voltage stability assessment that uses wide-area information from synchrophasors is proposed. The improvements are a better modeling of the limited ... [more ▼]

An improved Thévenin equivalent method for real-time voltage stability assessment that uses wide-area information from synchrophasors is proposed. The improvements are a better modeling of the limited synchronous generators, and a processing that anticipates the effect of field current limiters, before the latter are activated. Several study cases using detailed dynamic simulations of the Nordic test system have been used to assess the performance of the proposed improvements. Their effectiveness is analyzed and, based on the results, their possible application in combination with the sensitivity-based voltage stability assessment method is explored. [less ▲]

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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 ▲]

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See detailAge-standardized quality of life after hip or knee arthoplasty.
Neuprez, Audrey ULg; KURTH, William ULg; THIRION, Thierry ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 541-542

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See detailrelationship between total hip BMD T-score and incidence of nonvertebral fracture with up to 10 years of Denosumab (DMAB) treatment
Ferrari, S.; ADAMI, S.; Brown, J.P. et al

in Osteoporosis International (2016, April), 27(Supplement 1), 49-50

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See detailImpact of tillage on N2O and CO2 efflux in an agricultural crop
Lognoul, Margaux ULg; Theodorakopoulos, Nicolas ULg; Hiel, Marie-Pierre ULg et al

Poster (2016, April)

In an experiment conducted in the Belgian loess belt between June and October 2015, the effect of two tillage treatments (CT - conventional tillage and RT - reduced tillage) on CO2 and N2O fluxes ... [more ▼]

In an experiment conducted in the Belgian loess belt between June and October 2015, the effect of two tillage treatments (CT - conventional tillage and RT - reduced tillage) on CO2 and N2O fluxes exchanged by a maize crop were compared. Fluxes were measured using two fully automated sets of dynamic closed chambers, allowing a 4.5h temporal resolution. Soil water content and temperature were also monitored as well as pH, total N (TN) and total organic C (TOC) content. [less ▲]

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See detailTreeNET: Discovering and Connecting Subnets
Grailet, Jean-François ULg; Tarissan, Fabien; Donnet, Benoît ULg

in 8th International Workshop on Traffic Monitoring and Analysis (TMA) (2016, April)

Since the early 2000's, the Internet topology has been an attractive and important research topic, either for developing data collection mechanisms, and for analyzing and modeling the network. Beside ... [more ▼]

Since the early 2000's, the Internet topology has been an attractive and important research topic, either for developing data collection mechanisms, and for analyzing and modeling the network. Beside traditional aspects of the Internet topology (i.e., IP interface, router, and AS levels), recent researches focused on intermediate promising visions of the topology, namely Point-of-Presence (PoP) and subnets (i.e., a set of devices that are located on the same connection medium and that can communicate directly with each other at the link layer). This paper focuses on network subnet discovery by proposing a new tool called treenet. One of the key aspects of treenet is that it builds a tree representing the way subnets are located with respect to each other. This tree allows treenet to obtain additional information on the network, leading to better analysis of the collected data. In this paper, we demonstrate the potential of treenet through the evaluation of its key algorithmic steps and the study of measurements collected from the PlanetLab testbed. [less ▲]

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See detailUnveiling the MPLS Structure on Internet Topology
Davila Revelo; Anderson Ricci, Mauricio; Donnet, Benoît ULg et al

in 8th International Workshop on Traffic Monitoring and Analysis (TMA) (2016, April)

Recently, researches have been conducted to discover and assess the usage of MPLS tunnels. Indeed, recent developments in the ICMP protocol make certain categories of MPLS tunnels transparent to ... [more ▼]

Recently, researches have been conducted to discover and assess the usage of MPLS tunnels. Indeed, recent developments in the ICMP protocol make certain categories of MPLS tunnels transparent to traceroute probing. Additional techniques have been proposed to reveal the presence of MPLS tunnels when they do not explicitly appear in traceroute. It has been shown that MPLS is a very well deployed technology whose usage (i.e., Traffic Engineering, load balancing, etc.) varies in time and according to ASes. However, the MPLS structure on the Internet architecture has not been studied yet. In this paper, we follow this path by providing two contributions to the state of the art: (i) we evaluate the biases involved on MPLS tunnel detection when they are not directly revealed through traceroute. (ii), we provide some properties and architectural details related with MPLS deployment on router topology based on a k-core decomposition. [less ▲]

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See detailAntibiotherapy in pet rodents and rabbits: a preliminary analysis of practitioners’ habits
Marlier, Didier ULg

in Proceedings of the European College of Zoological Medicine Symposium (2016, April)

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See detailGlobal simulation of UV atmospheric emissions on Mars
González-Galindo; López-Valverde; Forget et al

Poster (2016, April)

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See detailTen years of Denosumab (DMAB) treatment in postmenopausal women with osteoporosis. Results from the FREEDOM Extension trial.
Bone, H.G.; Brandi, M.L.; Brown, J.P. et al

in Osteoporosis International (2016, April), 27(Supplement 1), 135-136

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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 ▲]

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