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See detailDistribution of inorganic and organic contaminants in the intertidal surface sediments along the Hugli River Estuary, eastern part of India
Das, Krishna ULg; Sarkar, Santosh; Thomé, Jean-Pierre ULg et al

Conference (2016, February 17)

Hooghly estuary and coastal environment in north east coast of India has been strongly affected by the rapid human settlements, intensive boating and tourist activities, deforestation and ongoing ... [more ▼]

Hooghly estuary and coastal environment in north east coast of India has been strongly affected by the rapid human settlements, intensive boating and tourist activities, deforestation and ongoing agricultural and aquacultural practices. The present work investigated trace elements (TEs, T-Hg, Al, V, Cr, Fe, Mn, Cu, Zn, Co, Ni, Ca, Sr, Li, Be, P, Mo, Ag, Cd, Sn, Sb, Ba, Pb, Bi, U, As, Se) and organohalogen compounds in surface sediment (top 0-10cm) considering 8 sampling sites along the Hugli River Estuary (HRE), India. The studied organic compounds include polychlorobiphenyls (PCBs), hexachlorocyclohexane isomers (HCHs), dichlorodiphenyltrichloroethane and metabolites (DDTs) and polybromodiphenyl ethers (PBDEs). Textural analyses of the sediment reveal an overall dominance of mud. All trace elements could be detected at variable concentrations in the following descending order: Al>Fe>Ca> P>Mn> Cu> Zn> Ba >V >Cr>Sr>Ni> Li >Co >Pb>As >Se >U >Be >Sn>Bi >Ag >Mo >Cd >Sb. A synchronous enrichment of majority of the elements were observed at the site Gangasagar (~100 km south megacity Calcutta), situated at the confluence of Hugli River and Bay of Bengal, which might be attributed to cumulative impact of the physicochemical processes and multiple anthropogenic sources. It is revealed that PCBs and DDTs were the dominant compounds among the organic pollutants accounting concentrations up to 23.5 ng.g-1 and 4.4 ng.g-1 respectively at the site Babughat, adjacent to the megacity Calcutta. The results have implications for pollution in complex estuarine environment in a meso-macrotidal setup where there is significant influx of sediments carrying huge load of inorganic and organic pollutants mainly due to rapid urbanization and industrialization. [less ▲]

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See detailMise en recueil et cyclisation des textes de théâtre
Henrard, Nadine ULg

Conference (2016, February 16)

Sur la base de l'examen d'une variété de cas, cette étude s'intéresse à la manière dont se regroupent les textes de théâtre dans la tradition : rassemblement au sein des manuscrits, collections de textes ... [more ▼]

Sur la base de l'examen d'une variété de cas, cette étude s'intéresse à la manière dont se regroupent les textes de théâtre dans la tradition : rassemblement au sein des manuscrits, collections de textes, cyclisation. Les exemples s'étalent de la fin XIe au XVIe s.; ils sont puisés à des corpus variés (latin, langue d'oc ou d'oïl; théâtre religieux et théâtre profane). [less ▲]

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See detailDesiccation cracks formation in clay-barrier for nuclear waste disposal
Hubert, Julien ULg; Prime, Noémie; Plougonven, Erwan ULg et al

Conference (2016, February 16)

In geotechnical engineering, the desiccation cracking of soil is commonly observed. This phenomenon is detrimental to the behavior of earth material and earth structure. Desiccation cracks can lead to the ... [more ▼]

In geotechnical engineering, the desiccation cracking of soil is commonly observed. This phenomenon is detrimental to the behavior of earth material and earth structure. Desiccation cracks can lead to the overall failure of many geotechnical structures: • They can affect the slope stability of earth dams or embankments; • They can initiate internal erosion of embankments due to water flow through the cracks; • They can compromise the efficiency of soil barriers such as landfill liners and top covers. Nowadays, the storage of nuclear waste in deep impermeable geological layers is considered. These storages are based on the multi-barrier principle, the last of which being the host rock, typically a clayey material. In this context, maintaining the very low hydraulic conductivity of the host rock is crucial. Unfortunately, the ventilation of excavated galleries causes convective drying of the host material and can lead to crack formation. This work aims to understand in which conditions exactly, during convective drying, does cracking occur in clayey materials. An experimental campaign has been carried out to characterize the drying behavior of Boom clay which is the host rock at the underground research facility in Mol (Belgium). X-Ray micro-tomography has been used to analyze crack development as well as shrinkage. The experiments are used to calibrate the transfer parameters of a convective drying law based on the limit layer model. This calibration is based on agreement of the drying kinetics. A numerical study is then performed and aims at reproducing the behavior observed during the experiments. A thermo-hydro-mechanical coupled model is used to determine the stress distribution during the drying and a tensile failure criterion is suggested to predict crack genesis. Simulations are performed using the in-house built FEM code LAGAMINE. [less ▲]

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See detailCycle, cercle, compilation. Introduction
Henrard, Nadine ULg

Conference (2016, February 16)

Introduction à la journée "Cycle, cercle, compilation", s'intéressant à la constitution d'ensembles d'hommes (cercles littéraires) ou de textes (compilations, cycles) au Moyen Âge. Les questionnements ... [more ▼]

Introduction à la journée "Cycle, cercle, compilation", s'intéressant à la constitution d'ensembles d'hommes (cercles littéraires) ou de textes (compilations, cycles) au Moyen Âge. Les questionnements soulevés par cette journée touchent ainsi à tous les stades de la chaîne du texte, de l’écriture à la réception et nécessitent de conjuguer axes synchronique et diachronique, données codicologiques et littéraires, historiques et aussi sociologiques. Ils invitent à interroger la part du hasard et de l’intention qui joue dans le rassemblement des œuvres et montrent, si besoin en était encore, qu’il est indispensable d’inscrire le fait littéraire dans une dynamique globale, en rappelant que les œuvres ne sont que des pièces imbriquées dans divers systèmes avec lesquels elles entrent en dialogue. [less ▲]

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See detailLa littérature panoramique par ses éditeurs
Stienon, Valérie ULg

Conference (2016, February 13)

Phénomène de société et de mode, la littérature panoramique identifiée rétrospectivement par Walter Benjamin constitue surtout une entreprise éditoriale majeure. Elle mobilise un grand nombre d’acteurs ... [more ▼]

Phénomène de société et de mode, la littérature panoramique identifiée rétrospectivement par Walter Benjamin constitue surtout une entreprise éditoriale majeure. Elle mobilise un grand nombre d’acteurs (libraires, illustrateurs, graveurs, imprimeurs) à l’échelle européenne et prépare de nouveaux statuts pour la fonction même d’éditeur, qui voit naître un discours spécifique à son propos, dans une époque qui précède de peu sa professionnalisation et dans un contexte de circulation médiatique accrue de l’imprimé sous ses formes les plus variées. La communication se centrera sur deux éditeurs panoramiques français importants, Curmer et Aubert, pour mettre en évidence la nature de leurs projets, l’originalité de leurs méthodes et l’identité de leurs personnels. On reviendra sur le rôle de passeur culturel du premier et de rassembleur d’une équipe d’artistes du second, deux caractéristiques à l’origine du rayonnement de la littérature panoramique. On examinera aussi les particularités de certaines de leurs productions, entre texte et image, journal et livre, ouvrage de collection et fascicule éphémère, jouant sur les matériaux et les circuits de diffusion. [less ▲]

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See detailThe secret life of a Mediterranean seagrass litter macrofauna community : a history of oxygen
Remy, François ULg; Michel, Loïc ULg; Sturaro, Nicolas ULg et al

Conference (2016, February 12)

Most of the foliar primary production of Posidonia oceanica, a major Mediterranean seagrass, sheds in autumn and is exported from the meadow to adjacent areas to form "Exported Macrophytodetritus ... [more ▼]

Most of the foliar primary production of Posidonia oceanica, a major Mediterranean seagrass, sheds in autumn and is exported from the meadow to adjacent areas to form "Exported Macrophytodetritus Accumulations", EMAs. These EMAs are a habitat, shelter and feeding place for an abundant and diverse community of macrofauna. Being very dynamic places and potentially playing a role of transition compartment between water column and sediment, EMAs present high variability in term of physicochemical conditions and more specifically in term of oxygen concentration. Mild to severe hypoxic periods (2 - 0.01 mL O2.L-1) can be observed in situ at different moments of the year, and this variability thus potentially play a structuring role on the macrofauna community. During this study, our main specific questions were (1) Does oxygen stratification occur inside EMAs? (2) If present, how long does it take to observe this stratification? (3) Is the macrofauna impacted and do the dominant species occupy defined positions inside the different micro-habitats? To assess the importance of this impact, an experimental study was conducted in October 2014 near the STARESO oceanographic station (Calvi, Corsica) using an original "layer-sampling" design. The experimental construction was put underwater inside an EMA for 48 hours at a depth of 8m. Samples were collected (N=8) in a 20cm thick EMA using "sealed" boxes to sample every 5cm, from the sediment, to the water column. Oxygen, nutrients and of course the litter itself (containing the macrofauna) were sampled carefully to make sure no exchange occurred between the 4 different layers. After data analysis, the assessment was clear: oxygen stratification occurred in less than 48h and oxygen level inside the layer close to the sediment experienced a fast decrease below the hypoxia threshold (2 mL O2.L-1). Diversity was highly impacted, showing a clear positive link with oxygen concentration. Macrofauna also appeared to follow this oxygen stratification but this response was very species specific. Some species didn't follow oxygen and are present in every layer and most of them were strongly positively linked to oxygen concentration. But a few (Nebalia strausi and Athanas nitescens) were strongly negatively linked to oxygen concentration and were present only in the more hypoxic layers. This experimentation thus confirmed our in situ observations. Oxygen stratification occurred quickly (< 48h) when EMAs were experiencing calm weather. This stratification observed from the water column to the sediment was very marked. Diversity and abundance of most abundant macrofauna species were drastically influenced by this stratification, showing the importance of these micro-habitats in structuring of this macrofauna community. [less ▲]

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See detailTrophic plasticity of Antarctic echinoids under contrasted environmental conditions
Michel, Loïc ULg; David, Bruno; Dubois, Philippe et al

Poster (2016, February 12)

Echinoids are common members of Antarctic zoobenthos, and different groups can show important trophic diversity. As part of the ANT-XXIX/3 cruise of RV Polarstern, trophic plasticity of sea urchins was ... [more ▼]

Echinoids are common members of Antarctic zoobenthos, and different groups can show important trophic diversity. As part of the ANT-XXIX/3 cruise of RV Polarstern, trophic plasticity of sea urchins was studied in three neighbouring regions (Drake Passage, Bransfield Strait and Weddell Sea) featuring several depth-related habitats offering different trophic environments to benthic consumers. Three families with contrasting feeding habits (Cidaridae, Echinidae and Schizasteridae) were studied. Gut content examination and stable isotopes ratios of C and N suggest that each of the studied families showed a different response to variation in environmental and food conditions. Schizasteridae trophic plasticity was low, and these sea urchins were bulk sediment feeders relying on sediment-associated organic matter in all regions and/or depth-related habitats. Cidaridae consumed the most animal-derived material. Their diet varied according to the considered area, as sea urchins from Bransfield Strait relied mostly on living and/or dead animal material, while specimens from Weddell Sea fed on a mixture of dead animal material and other detritus. Echinidae also showed important trophic plasticity. They fed on various detrital items in Bransfield Strait, and selectivity of ingested material varied across depth-related habitats. In Weddell Sea, stable isotopes revealed that they mostly relied on highly 13C-enriched food items, presumably microbially-reworked benthic detritus. The differences in adaptive strategies could lead to family-specific responses of Antarctic echinoids to environmental and food-related changes. [less ▲]

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See detailMercury and persistent organic pollutant concentrations in free-ranging bottlenose dolphins from Lower Keys and Coastal Everglades (South Florida)
Damseaux, France ULg; Kiszka, Jeremy; Heithaus, Michael et al

Poster (2016, February 12)

The bottlenose dolphin (Tursiops truncatus) is a major apex predator and the most common cetacean species found in nearshore waters of South Florida, including the Lower Florida Keys (LFK) and the Florida ... [more ▼]

The bottlenose dolphin (Tursiops truncatus) is a major apex predator and the most common cetacean species found in nearshore waters of South Florida, including the Lower Florida Keys (LFK) and the Florida Coastal Everglades (FCE). The objective of this study was 1) to assess contamination levels of total mercury (T-Hg) in skin and persistent organic pollutants (PCBs, PBDEs, DDT, HCH, HCB, DLCs and PCDD/Fs) in blubber samples of bottlenose dolphins from the LFK (8 males and 16 females) and from the FCE (13 males and 9 females). Pollutants were analysed by the mean of Direct Mercury analyser (for T-Hg), GC-ECD (POPs) and GC-MS (DLCs and PCDD/Fs). The PCBs were the main compounds found in bottlenose dolphins from the LFK and FCE. The most present congeners where the CB no. 28, 52, 101, 138, 153 and 180 (ΣPCBs LFK males: 13420.5 ng.g-1 lipids, ΣPCBs LFK females: 9683.4 ng.g-1 lipids, ΣPCBs FCE males: 5637.9 ng.g-1 lipids, ΣPCBs FCE females: 1426.9 ng.g-1 lipids). PCBs concentrations were significantly higher in individuals from the LFK than those from the FCE but significantly lower than those from other locations in the south-eastern US. Unlike organic pollutants, T-Hg concentrations were significantly higher in FCE male dolphins (LFK: 2936.0 ng.g-1 dw, FCE: 10048.3 ng.g-1 dw). These high concentrations were the highest recorded in the south-eastern US and are most likely due to the presence of mangrove ecosystems. This study highlights the complexity of contaminant dynamics (inorganic vs. organic), even at small spatial scales. [less ▲]

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See detailDroit international et pacifisme en Belgique de 1870 à 1940 : une cohabitation complexe
Genin, Vincent ULg

Conference (2016, February 12)

Detailed reference viewed: 24 (1 ULg)
Peer Reviewed
See detailBiologie, sociologie, philosophie. Le fait moral entre Durkheim et Bergson
Caeymaex, Florence ULg

Conference (2016, February 12)

Detailed reference viewed: 11 (0 ULg)
See detailScience, technology and society: opening pathways for integrating social sciences and humanities into nuclear research
Turcanu, Catrinel; Meskens, Gaston; Perko, Tanja et al

Poster (2016, February 11)

The PISA programme was initiated in 1999 within the Belgian Nuclear Research Centre SCK•CEN to study the societal, political, cultural and ethical aspects of the development and use of nuclear technology ... [more ▼]

The PISA programme was initiated in 1999 within the Belgian Nuclear Research Centre SCK•CEN to study the societal, political, cultural and ethical aspects of the development and use of nuclear technology and applications of ionising radiation. The programme was launched as the result of an internal reflection acknowledging that insights from social sciences and humanities were required to better explore normative concepts such as precaution and sustainable development, and to understand attitudes towards nuclear technologies and its governance. This presentation elaborates on the objectives of PISA and its main research tracks. It shows that through its multi-disciplinary approach, the PISA programme of the Belgian Nuclear Research Centre SCK•CEN opens pathways towards such integration, and thus contributes to rendering nuclear research more reflective and more responsive towards society. It explicates the interactions between science, technology and society, in general, and the complexity of nuclear technology assessment, in particular. Last, but not least, due do its reflexive character, PISA research creates an epistemologically and socially enriching dynamic in the organisation itself. [less ▲]

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See detailPrésentation du programme de la conférence mondiale des humanités (Liège, août 2017)
Winand, Jean ULg

Conference (2016, February 11)

Detailed reference viewed: 27 (4 ULg)
See detailThe sanctuary of Despoina at Lykosoura: a Megalopolitan creation?
Palamidis, Alaya ULg

Conference (2016, February 11)

Pausanias states that the most important Parrhasian sanctuaries were duplicated in Megalopolis in the aftermath of its creation in the 4th century B.C. A noteworthy exception is the sanctuary of Despoina ... [more ▼]

Pausanias states that the most important Parrhasian sanctuaries were duplicated in Megalopolis in the aftermath of its creation in the 4th century B.C. A noteworthy exception is the sanctuary of Despoina at Lykosoura, which was very ancient according to the author. However, the absence of epigraphical or literary evidence concerning Lykosoura and predating the synoecism and the very limited archaeological material dating to the Archaic and Classical periods suggest that it was the site of a minor cult before the synoecism. The presence of Despoina is not attested before, and it is possible that the cult of the goddess was only developed by Megalopolis, which associated to it several other Arcadian deities and gave it an ancient and local flavour, in order to assert its position as the new cult-centre of Arcadia. Similarly, the sanctuary of Demeter Eleusinia at Basilis may have only been created or developed by Megalopolis, despite its alleged antiquity. This phenomenon finds its closest parallel in the sanctuary of Andania, controlled by the city of Messene. The presence of Demeter and deities associated with her in these sanctuaries, as well as the existence of mysteries, may reflect the growing influence of the sanctuary of Eleusis during the Hellenistic period. [less ▲]

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See detailNew ventures in nuclear emergency planning and response: a governance perspective
Van Oudheusden, Michiel ULg; Rossignol, Nicolas ULg; Turcanu, Catrinel

Poster (2016, February 11)

Emergency and disaster management is structured by the complex interaction of natural, social, and technological factors, and contingent on features of culture and organization. Our research serves to ... [more ▼]

Emergency and disaster management is structured by the complex interaction of natural, social, and technological factors, and contingent on features of culture and organization. Our research serves to highlight how these features come into play and shape emergency planning, anticipation, and response. Based on qualitative and quantitative analyses, we devise more resilient, responsive, and adaptive emergency policies for implicated stakeholders (e.g. policymakers, emergency services, regulators) and society at large. Our research foci include citizen science initiatives and stakeholder forums on contaminated goods in the wake of the 2011 Fukushima accident. Our methods are grounded in vulnerability analysis, which accepts that vulnerability is an inherent trait of contemporary societies. [less ▲]

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See detailLocal thermal history during the laser additive manufacturing of steel
Mertens, Anne ULg; Hashemi, Seyedeh Neda ULg; Tchuindjang, Jérôme Tchoufack ULg et al

Conference (2016, February 09)

Laser additive manufacturing techniques – such as laser cladding − were developed in the late 1990s as economic layer-by-layer near-net-shape processes allowing for the production or restoration of ... [more ▼]

Laser additive manufacturing techniques – such as laser cladding − were developed in the late 1990s as economic layer-by-layer near-net-shape processes allowing for the production or restoration of complex metallic parts. These techniques are characterised by ultra-fast solidification and cooling rates, thus giving rise to ultra-fine out-of-equilibrium microstructures with potentially enhanced mechanical properties. However, the general quality of a component, as well as its dimensional accuracy, microstructure and final usage properties are strongly influenced by the local thermal history experienced during fabrication. As a consequence, a deeper understanding of the influence of the various processing parameters on the local thermal history during fabrication is of paramount importance, and it can only be reached by combining detailed experimental studies and modeling. Keeping this in mind, the present paper reviews on-going investigations carried out in the Metallic Materials Science Unit of the University of Liege in the laser additive manufacturing of HSS and of stainless steel 316L. [less ▲]

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Peer Reviewed
See detailFigures de l'identité et régimes de fiction dans l'espace public
Servais, Christine ULg

Conference (2016, February 09)

Cette communication interroge la notion de figure comme opérateur de publicisation de l'identité singulière, et distingue à cette fin différents régimes de fiction. Il s'agit d'analyser les dynamiques à ... [more ▼]

Cette communication interroge la notion de figure comme opérateur de publicisation de l'identité singulière, et distingue à cette fin différents régimes de fiction. Il s'agit d'analyser les dynamiques à l’œuvre entre la (re)présentation de soi et sa réception dans la formation de jugements publics, ce qui suppose de considérer ensemble le niveau de l'histoire racontée et le niveau de sa lecture. L'objectif est de proposer, pour l’analyse des scènes de publicisation de la singularité, un outillage qui soit en lien avec les questions de jugement et de responsabilité. [less ▲]

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See detailEarly life programming of pigs' intestinal microbiota, intestinal functioning and hepatic metabolism by maternal wheat bran supplementation
Leblois, Julie ULg; Bindelle, Jérôme ULg; Dehareng, Frédéric et al

Poster (2016, February 05)

The gastrointestinal (GI) microbiota plays many roles on the host’s health, acting as a barrier against pathogens and influencing the development and maturation of the mucosa, important for host’s ... [more ▼]

The gastrointestinal (GI) microbiota plays many roles on the host’s health, acting as a barrier against pathogens and influencing the development and maturation of the mucosa, important for host’s immunity. Microbial colonization occurs pre- and postnatally, via maternal transfer i.e. by milk and by the contact with sows faeces. Hence, the early establishment of a beneficial gastrointestinal microbiota in piglets was investigated by supplementing the sows with wheat bran that we consider as a prebiotic (rich in non-starch polysaccharides). Sows were fed either a wheat bran-enriched diet (25% in gestation, 14% in lactation) either a control diet. Piglets were suckling during 4 weeks, receiving a standard creep feed containing no pre- or probiotic from the second week until weaning. The direct effect of wheat bran on the fecal microbial composition of the sow has been analyzed as well as the chemical composition and immunoglobulins content of the colostrum and milk. Sows and piglets growth performances have been recorded at different time points to verify that wheat bran doesn’t impair performances. At weaning, piglets have been euthanized and the impact of the maternal treatment was investigated at different levels: growth performances, ileal and colonic microbiota, intestinal physiology and immunological response and metabolism. A second animal experiment will be performed next year including a metabolic challenge by giving half of the piglets a high-energy diet post-weaning. [less ▲]

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Peer Reviewed
See detailQui sont les auteurs « Aubert » ? La figure auctoriale en régime promotionnel
Stienon, Valérie ULg

Conference (2016, February 05)

La Maison Aubert et l’esprit d’entreprise de Charles Philipon sont sous la Monarchie de Juillet à l’origine d’un réseau éditorial fructueux et protéiforme fondé sur la diversification des supports (livres ... [more ▼]

La Maison Aubert et l’esprit d’entreprise de Charles Philipon sont sous la Monarchie de Juillet à l’origine d’un réseau éditorial fructueux et protéiforme fondé sur la diversification des supports (livres, journaux, volumes de pittoresques et petits formats de la littérature panoramique), sur le commerce du produit dérivé (« Muséums », caricatures à la pièce, papiers peints) et sur l’exploitation de l’image pour vendre le texte. On sait que Philipon a lancé les carrières de plusieurs dessinateurs importants comme Daumier et Doré. On sait également qu’il a su attirer des collaborateurs de premier choix dans les équipes rédactionnelles de la petite presse satirique de la Caricature et du Charivari. Ces démarches et la production qui en a résulté ont contribué à fonder autour d’une écurie éditoriale une véritable marque de fabrique, sinon une esthétique. Mais ont-elles pour autant participé à l’émergence de figures d’auteurs ? Louis Huart, Taxile Delord, Edmond Texier, Albert Cler, Arnould Frémy, Maurice Alhoy, James Rousseau et bien d’autres sont demeurés des « petits », attachés aux dépôts de pittoresques et aux panthéons comiques. À travers le cas des productions Aubert, il ne s’agira pas d’examiner comment une figure d’auteur identifiable (de son temps et/ou par la postérité) investit ou bénéficie de la publicité, mais d’envisager la problématique complémentaire et en quelque sorte inverse : les modalités de constitution de la figure auctoriale dans un contexte, un réseau et des supports qui jouent d’emblée et pleinement le jeu publicitaire sous ses formes les plus abouties, s’appuyant sur les stratégies économiques et promotionnelles rendues possibles par l’ère médiatique. L’individualité auctoriale peut-elle prendre forme et statut au sein d’une collectivité prépondérante et ouvertement spéculatrice, celle du commerce de la librairie et de la presse fondé sur la collaboration, le transfert et l’interchangeabilité des identités au profit des fonctions socioprofessionnelles ? En d’autres termes, si l’auteur ne peut se faire un nom sans publicité, (comment) peut-il exister lorsque tout n’est que publicité ? [less ▲]

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See detailBioncontrol of wheat against Septoria Tritici Blotch: new elicitors
Le Mire, Géraldine ULg; SIAH, Ali; Jijakli, Haissam ULg

Poster (2016, February 05)

Wheat is one of the most cultivated crop plants in the world. However, this plant must constantly face numerous biotic challenges, including major yield losses every year (up to 30-50%) due to a foliar ... [more ▼]

Wheat is one of the most cultivated crop plants in the world. However, this plant must constantly face numerous biotic challenges, including major yield losses every year (up to 30-50%) due to a foliar disease known as Septoria Tritici Blotch (STB). This persistent and harmful disease is 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 for Integrated Plant Management (IPM) strategies. Contrary to conventional products, these natural compounds do not inhibit directly the pathogen but induce a general and systemic resistance in the plant to a large spectrum of diseases. The natural defense mechanisms of the plant are thus stimulated. Few elicitors have yet been successfully tested and formulated to protect wheat against STB. This study focuses on the screening of ten potential elicitor products of various origins and structures 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 directly towards the pathogen was evaluated under greenhouse and laboratory conditions, respectively. The corresponding results will be presented and discussed with the perspective to choose the best elicitor candidates for field trials and to undertake further investigations on the signaling pathways, and the influence of environmental parameters, on the elicitation capacity. [less ▲]

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See detailIn vitro evaluation of protein precipitation capacity of temperate browse species
Vandermeulen, Sophie ULg; Leblois, Julie ULg; Ramírez-Restrepo, Carlos Alberto et al

Poster (2016, February 05)

European agri-environmental policies are promoting the establishment of shrubs and trees on grasslands. The use of browse as fodder requires knowledge on their nutritive value since intensive production ... [more ▼]

European agri-environmental policies are promoting the establishment of shrubs and trees on grasslands. The use of browse as fodder requires knowledge on their nutritive value since intensive production systems are still relying on expensive and environment-costing protein sources. However, information on the influence of temperate condensed tannins (CT)-containing browse forage on rumen protein metabolism is elusive. The study aimed to assess the protein precipitation capacity (PPC) of 10 temperate browse species and establish the correlation between PPC values and plants CT content. PPC of foliage of 3 individuals per woody plants was measured using 2 model proteins: bovine serum albumin (BSA) and casein. The N content in protein solutions (4.6g/L; pH=6.8) was determined before and after adding each forage sample. Extractable CT concentration was quantified by spectrophotometry. The PPC varied across plant species (P<0.001). Corylus avellana had the highest ability to precipitate casein (52.4%). In contrast, the BSA precipitation (18.3%) of this plant was similar to Cornus sanguinea (12.7%), Quercus robur (12.1%) and Crataegus monogyna (11.0%). CT content ranged from 1.4 in Fraxinus excelsior to 82.7g/kg of depigmented sample in Corylus avellana (P<0.001) and was correlated to BSA (r=0.70; P<0.001) and casein PC (r=0.51; P<0.01). It was concluded that woody species could play a significant role in modifying protein metabolism, but further in vivo trials are required. [less ▲]

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Peer Reviewed
See detailLeachate and leonardite Humic substances effect on in vitro root initiation and elongation of woody species
Tahiri, Abdelghani ULg; Destain, Jacqueline ULg; Thonart, Philippe ULg et al

Poster (2016, February 05)

Arise from the chemical and biological degradation of plant and animal residues and from the synthetic activities of microorganisms in the soil, humic substances (HS) are natural heterogeneous aromatic ... [more ▼]

Arise from the chemical and biological degradation of plant and animal residues and from the synthetic activities of microorganisms in the soil, humic substances (HS) are natural heterogeneous aromatic and organic compounds. These substances are chemically complex with no clearly defined chemical structure, although generalized models have been proposed. Present everywhere in the nature; they take part in basic functionalities in any ecosystems involving soils, sediments, water and landfills. They have long been recognized as plant growth promoting substances, particularly with regard to influencing nutrient uptake, root growth and architecture. They influence plant productivity directly by the stimulation of biochemical and metabolic processes or indirectly through the modification of soil characteristics and microflora activities. All together, these properties mainly affect root architecture by inducing root hairs proliferation, differentiating root cells and enhancing lateral root emergence. Experiments targeting the rooting stages in absence of interferences were conducted in vitro using HS extracted from landfill leachate and a stable commercial formulation (“Humifirst” from TRADECORP company: 12% humic acid and fulvic acid 3%) issued from leonardite. Shoots and leaves explants of silver birch (Betula pendula Roth) and black alder (Alnus glutinosa L. Gaertn) explants were treated with 10 ppm of leachate and leonardite HS for 5 days during the rooting induction/initiation phase or during rooting elongation phase. The results obtained show that treatment with a low concentration (10 ppm) during induction/initiation phase may be slightly unfavorable to the formation of roots in alder but not in birch. While, in root elongation phase, there is an increase in the number of roots per shoot only in birch. The direct effects of leachate and leonardite HS on root development vary from one species to another. [less ▲]

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See detailRecent and rapid radiation of the lichen genus Sticta in the Western Indian Ocean islands
Simon, Antoine ULg; Magain, Nicolas ULg; Goffinet, Bernard et al

Poster (2016, February 05)

In the framework of a global project on the phylogeny of the lichen genus Sticta (Lobariaceae), extensive sampling was performed on the islands of Reunion and Mauritius as well as in several parts of ... [more ▼]

In the framework of a global project on the phylogeny of the lichen genus Sticta (Lobariaceae), extensive sampling was performed on the islands of Reunion and Mauritius as well as in several parts of Madagascar (mainly in two National Parks : Marojejy and Amber Mountain). The aim of this study is to provide the first comprehensive molecular phylogeny of the genus in the Western Indian Ocean islands (and more specifically of a presumably local endemic lineage), and to date its local radiation. DNA sequences were obtained from 69 specimens for four loci and phylogenetic relationships were inferred using maximum likelihood and Bayesian inferences methods. We estimated divergence times using BEAST. Thirty putative species can be recognized, only 5 have a validly published epithet. All these species form a well-supported monophyletic group within the genus Sticta, and display interesting patterns of endemism: a single species is present in all islands, while the others are restricted either to Madagascar, to Reunion and Mauritius, or to Reunion only. The estimated divergence time of the radiation of this clade occurred in the upper Miocene, apparently concurrent with the emergence of Mauritius. The tree topology obtained supports an original diversification of the clade in the Mascarenes archipelago rather than in Madagascar. [less ▲]

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See detailA family with a split hand malformation
PIERQUIN, Geneviève ULg

Conference (2016, February 04)

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See detailDysmorphology Quiz
BULK, Saskia ULg; PIERQUIN, Geneviève ULg

Conference (2016, February 04)

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See detailBien soigner l'arthrose: un enjeu de société
Henrotin, Yves ULg

Conference (2016, February 04)

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See detailMicrodélétions et duplications 22q11.22 distales
PIERQUIN, Geneviève ULg; CABERG, Jean-Hubert ULg; BULK, Saskia ULg

Poster (2016, February 03)

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See detailThe global chemistry climate model ECHAM6-HAMMOZ
Schultz, Martin G.; Franco, Bruno ULg; Kaffashzadeh, Najmeh et al

Poster (2016, February 02)

Atmospheric composition of short-lived gases and aerosols is an important component of the global climate system. Complex processes from emissions, transport, and chemical reactions to heterogeneous loss ... [more ▼]

Atmospheric composition of short-lived gases and aerosols is an important component of the global climate system. Complex processes from emissions, transport, and chemical reactions to heterogeneous loss processes and radiation interactions need to be implemented in climate models to reach an adequate understanding of the role of short-lived climate forcers on the climate system and to allow the assessment of climate impacts on the regional scale. With ECHAM6-HAMMOZ we have developed a comprehensive model of tropospheric and stratospheric aerosols and gas-phase chemistry which is now running successfully on the Jülich supercomputer JURECA. [less ▲]

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See detailArtificial Intelligence and Energy
Cornélusse, Bertrand ULg; Fonteneau, Raphaël ULg

Conference (2016, February 02)

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See detailMédecine de famille et prévention quaternaire. Conférence à l’Université Ouverte du Hainaut. Charleroi 1 février 2016
Jamoulle, Marc ULg

Conference (2016, February 01)

L’exposé est destiné aux seniors fréquentant l’Université du Temps disponible, soutenue par la Province du Hainaut, Belgique La médecin de famille ou médecine générale (MG/MF) est un métier complexe et ... [more ▼]

L’exposé est destiné aux seniors fréquentant l’Université du Temps disponible, soutenue par la Province du Hainaut, Belgique La médecin de famille ou médecine générale (MG/MF) est un métier complexe et méconnu qui demande de solides connaissances fondamentales en sciences de la vie mais aussi en sociologie et en anthropologie autant qu’en épidémiologie. La formation internationale européenne des MG/MF est rythmée dans l’exposé par la définition européenne qu’en donne l’association européenne des Médecins de famille (Wonca Europe) L’exposé, qui débute par une prise de position éthique et politique, est aussi émaillé de diapositives de l’auteur ou d’emprunt à la littérature internationale de médecine de famille et orné de détails de photographies prises par l’auteur. Humanisme et complexité sont les deux thèmes majeurs abordés. La deuxième partie de l’exposé est consacré à la Prévention quaternaire, concept inventé par l’auteur et qui incite les médecins et les patients à chercher une relation constructrice et à se garder des effets pervers de la médecine, tant symbolique que soi-disant scientifique, contrôlée par le profit et génératrice de surmédicalisation de la société. [less ▲]

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See detailOUTDOOR MEASUREMENT OF CATTLE METHANE EMISSIONS USING THE EDDY-COVARIANCE TECHNIQUE IN COMBINATION WITH GEOLOCALIZATION DEVICES
Dumortier, Pierre ULg; Andriamandroso, Andriamasinoro ULg; Aubinet, Marc ULg et al

Poster (2016, February)

Methane emissions account for 8% of the EU-15 GHG emissions and livestock generates approximately half of these emissions [1]. In order to improve emissions reporting and properly test mitigation options ... [more ▼]

Methane emissions account for 8% of the EU-15 GHG emissions and livestock generates approximately half of these emissions [1]. In order to improve emissions reporting and properly test mitigation options, techniques for measuring methane emissions from cattle must be developed and adapted to each management system. Among available micrometeorological methods, the use of eddy-covariance is still in its infancy [2] and its relevance and robustness for cattle flux estimation has still to be proved. On one hand, it is well adapted to seasonal grazing systems, is non-invasive, needs little animal handling and allows detection of daily emission patterns. On the other hand, it has the drawback of requiring cattle geo-localization and long periods of measurements (typically one month). In this study, we combined measured CH4 fluxes with a footprint model [3] and cattle positions (GPS devices) over several one-month campaigns at key periods in the grazing season in order to obtain CH4 emissions per cow at herd scale. Accelerometers were also added to the system for behaviour detection, opening the possibility of linking emissions to feeding behaviour. Measurements were performed and are still ongoing at the Dorinne Terrestrial Observatory in 2014/2015. The first campaign provided a mean emission per cow of 65±6 kg CH4.LSU-1.year-1. Cattle emission pattern was tightly linked with behaviour pattern, emissions being higher during and shortly after grazing (i.e. at dawn and dusk). Uncertainties linked to the method will be discussed and quantified (footprint model validity, geo-localization precision, eddy covariance corrections and filtering specificities linked to CH4 measurements). Compilation of data from multiple campaigns will allow quantification of the effects of forage quality, animal weight and lactating state on emissions per cow. [less ▲]

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See detailSciaenops ocellatus: Daily and seasonal sound variation during spawning in aquaculture.
Henry, Séverine ULg; Falguière, Jean Claude; Devillers, Samson et al

Poster (2016, February)

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See detailNew insights into the fossil record of the mangrove palm Nypa: a taphonomic study from the Iberian Peninsula
Moreno-Dominguez, Rafael; Cascales-Miñana, Borja ULg; Ferrer, Javier et al

Poster (2016, February)

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See detailLINKING CATTLE GRAZING BEHAVIOR TO METHANE AND CARBON DIOXIDE DYNAMICS
Blaise, Yannick ULg; Lebeau, Frédéric ULg; Andriamandroso, Andriamasinoro ULg et al

in Communications in Agricultural and Applied Biological Sciences (2016, February), 81(1), 107-112

Various methods are presently used to measure methane (CH4) emissions of ruminants on pasture. Those measurements are essential to evaluate nutritional strategies to mitigate enteric CH4 emissions as well ... [more ▼]

Various methods are presently used to measure methane (CH4) emissions of ruminants on pasture. Those measurements are essential to evaluate nutritional strategies to mitigate enteric CH4 emissions as well as addressing the selection of low producing individuals. On pasture and in the barn, variations in CH4 emissions are observed depending on the time of the day. However, no studies have been made to link these diurnal fluctuations to behavioural phases, especially on pasture. The aim of this study was to understand the individual dynamics of CH4 production and their links to the grazing behaviour. For this purpose, a new tool was specifically developed. Five red-pied dry cows were equipped with infrared CH4 and carbon dioxide (CO2) sensors measuring concentrations in the exhaled air at 4 Hz. The animals were equipped with a heart rate belt (HR) and motion sensors to detect their feeding behaviours (grazing vs. rumination) for periods of 8 h/d. Wind speed (WS) was also monitor to verify interference with sampled gas concentrations. Results showed that using the CH4:CO2 ratio reduced the interference with WS that was observed on raw CH4 and CO2 concentration signals. CH4:CO2 ratio average over 5 min periods indicated that CH4 emissions were lower during grazing than rumination (P<0.01). The eructation frequency during grazing (0.48 eructation/min, P<0.01) was also lower than during rumination (0.65 eructation/min). HR was higher during grazing that rumination. Because HR is usually linked to metabolic CO2 production intensity, hence influencing the denominator of the CH4:CO2 ratio, further investigation should focus on the quantification of changes in fermentative and metabolic CO2 emissions along the day to estimate total CH4 production more accurately and the relationship between CH4 emissions patterns and post-feeding times. [less ▲]

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See detailCommuniquer pour mieux gérer les ressources naturelles, cas pilote du bassin versant de la rivière Lukaya.
Jacmain, Céline; Rosillon, Francis ULg

in Elongo, V.L.; Wildi, Walter; Onaotsho, K. (Eds.) et al Actes du séminaire interdisciplinaire et interuniversitaire : Communication environnementale dans les pays en développement : enjeux, modèles, applications. (2016, February)

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See detailFramework for Threat Based Failure Rates in Transmission System Operation
Perkin, Samuel; Bjornsson, Gudjon; Baldursdottir, Iris et al

in Framework for Threat Based Failure Rates in Transmission System Operation (2016, February)

Reliability of electrical transmission systems isvpresently managed by applying the deterministic N-1 criterion, or some variant thereof. This means that transmission systems are designed with at least ... [more ▼]

Reliability of electrical transmission systems isvpresently managed by applying the deterministic N-1 criterion, or some variant thereof. This means that transmission systems are designed with at least one level of redundancy, regardless of the cost of doing so, or the severity of the risks they mitigate. In an operational context, the N-1 criterion provides a reliability target but it fails to accurately capture the dynamic nature of short-term threats to transmission systems. Ongoing research aims to overcome this shortcoming by proposing new probabilistic reliability criteria. Such new criteria are anticipated to rely heavily on component failure rate calculations. This paper provides a threat modelling framework, using the Icelandic transmission system as an example, highlighting the need for improved data collection and failure rate modelling. The feasibility of using threat credibility indicators to achieve spatio-temporal failure rates, given minimal data, is explored in a case study of the Icelandic transmission system. The paper closes with a discussion on the assumptions and simplifications that are implicitly made in the formulation, and the additional work required for such an approach to be included in existing practices. Specifically, this paper is concerned only with short term and real-time management of electrical transmission systems. [less ▲]

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See detailOverview of Superhydrophilic, Photocatalytic and Anticorrosive Properties of TiO2 Thin Films Doped with Multi-walled Carbon Nanotubes and Deposited on 316L Stainless Steel
Léonard, Géraldine ULg; Remy, Simon; Heinrichs, Benoît ULg

in Materials Today: Proceedings (2016, February), 3(2), 434-438

TiO2 films with MWCNTs are produced for anticorrosive applications to increase the lifetime of steel materials. TiO2 has two additional properties, photoactivity and superhydrophilicity. Two TiO2 samples ... [more ▼]

TiO2 films with MWCNTs are produced for anticorrosive applications to increase the lifetime of steel materials. TiO2 has two additional properties, photoactivity and superhydrophilicity. Two TiO2 samples, synthesized in aqueous or alcoholic media, have been doped with MWCNTs. The material which best combines anticorrosive, superhydrophilic and photocatalytic properties, is the one produced in aqueous medium (Aq-TiO2-CNT). Doping with MWCNTs increases the photodegradation of p-nitrophenol from 18% to 50%. MWCNTs allow to reduce the corrosion current and the corrosion potential. The good superhydrophilicity of TiO2 is kept on stainless steel with a contact angle after illumination around 5°. [less ▲]

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See detailContextualisation de la pensée d'Albert Demaret et réflexion autour du déni anorexique
Mormont, Christian ULg

in Englebert, Jérôme; Follet, Valérie (Eds.) Adaptation. Essai collectif à partir des paradigmes éthologiques et évolutionnistes. (2016, February)

Contextualization of thoughts and works of Albert Demaret in the field of psychiatry and ethology. About the disavowal in anorectic female.

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See detailPrise en charge des patients en état de conscience altérée. Approche kinésithérapique par stimulations transcrâniennes non invasives et attèles souples
Martens, Géraldine ULg

in Kinésithérapie, la revue. Vol 16 - n°170 (2016, February)

Ces dernières années, grâce au perfectionnement des techniques de réanimation, le nombre de patients survivant à leur lésion cérébrale a fortement augmenté. Tandis que certains se rétablissent rapidement ... [more ▼]

Ces dernières années, grâce au perfectionnement des techniques de réanimation, le nombre de patients survivant à leur lésion cérébrale a fortement augmenté. Tandis que certains se rétablissent rapidement, d’autres traversent différents états de conscience altérée (coma, état végétatif/non répondant ou état de conscience minimale) avant de récupérer ou non un état de conscience normal. Les patients en état de conscience altérée représentent un problème majeur tant au niveau diagnostique, pronostique, thérapeutique, qu’au niveau de leur prise en charge quotidienne. Diverses possibilités de traitements pharmacologiques et non pharmacologiques ont été étudiées. Les techniques des stimulations transcrâniennes à courant continu (tDCS) augmentent l’excitabilité corticale et le flux sanguin cérébral régional. La plasticité cérébrale s’en voit améliorée, ce qui module l’activité corticale et donc l’activité fonctionnelle des aires se trouvant sous l’anode. Une plasticité cérébrale est parfois encore possible, même au stade chronique. Un des problèmes majeurs de ces patients est la spasticité qui cause diverses complications (rétractions musculaires, subluxations et luxations articulaires, escarres, positions vicieuses) en plus du facteur algique. Ces complications sont d’autant plus importantes que ces patients sont voués à rester alités. La kinésithérapie permet de réduire les complications liées à la spasticité mais est parfois insuffisante et la prise d’antispastiques est inévitable. La technique la plus couramment utilisée est l’étirement passif : son efficacité dans la réduction des phénomènes spastiques est clairement reconnue. Par ailleurs, des études ont montré l’intérêt de la mise en place d’une attèle souple au niveau du membre supérieur chez les patients spastiques. L’avantage de cette technique est sa simplicité d’utilisation. Cette attelle se base sur le principe de saturation du système proprioceptif cutané à l’aide d’un tissu élastique, ceci simultanément à un rééquilibrage des antagonistes. De nombreuses pistes restent encore à explorer pour une prise en charge optimale des patients cérébrolésés. [less ▲]

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See detailTransfer of contaminants in the food chain up to marine mammals
Das, Krishna ULg

Conference (2016, February)

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See detailPredicting Review Helpfulness
Ittoo, Ashwin ULg

in Proceedings (2016, February)

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See detailThe Devonian palynology of the Iberian Península: current state and future goals
Rial, Gonzalo; Diez, José B.; Cascales-Miñana, Borja ULg

Poster (2016, February)

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See detailTransformational Leadership, Role Conflict and the Moderating Role of Uncertainty Avoidance
Selzer, Veronika Luisa; Schumann, Jan Hendrik; Büttgen, Marion et al

Conference (2016, February)

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See detailCharacterization of GPR101 transcripts structure, expression and signaling
Trivellin, G; Bjelobaba, I; Daly, Adrian ULg et al

in Abstract book - Keystone Symposia on GPCRs (2016, February)

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See detailDiagnosis of sickle cell disease by innovative PCR without DNA extraction
DETEMMERMAN, Liselot; BOEMER, François ULg; OLIVIER, Sabine

Poster (2016, February)

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See detailDecision Making from Confidence Measurement on the Reward Growth using Supervised Learning: A Study Intended for Large-Scale Video Games
Taralla, David ULg; Qiu, Zixiao ULg; Sutera, Antonio ULg et al

in Proceedings of the 8th International Conference on Agents and Artificial Intelligence (ICAART 2016) - Volume 2 (2016, February)

Video games have become more and more complex over the past decades. Today, players wander in visually and option- rich environments, and each choice they make, at any given time, can have a combinatorial ... [more ▼]

Video games have become more and more complex over the past decades. Today, players wander in visually and option- rich environments, and each choice they make, at any given time, can have a combinatorial number of consequences. However, modern artificial intelligence is still usually hard-coded, and as the game environments become increasingly complex, this hard-coding becomes exponentially difficult. Recent research works started to let video game autonomous agents learn instead of being taught, which makes them more intelligent. This contribution falls under this very perspective, as it aims to develop a framework for the generic design of autonomous agents for large-scale video games. We consider a class of games for which expert knowledge is available to define a state quality function that gives how close an agent is from its objective. The decision making policy is based on a confidence measurement on the growth of the state quality function, computed by a supervised learning classification model. Additionally, no stratagems aiming to reduce the action space are used. As a proof of concept, we tested this simple approach on the collectible card game Hearthstone and obtained encouraging results. [less ▲]

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See detailLes Q-codes ; Une table des matières pour la médecine générale
Jamoulle, Marc ULg

Conference (2016, January 30)

Présentaion en français de l'état d'avancement des travaux sur les Q-codes

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See detailEmergency department bed coordination: burden and pitfalls.
GILLET, Aline ULg; Minder, Anaïs ULg; Nyssen, Anne-Sophie ULg et al

Conference (2016, January 30)

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See detailCaught in the middle: the Maisierian, a lithic tradition between two worlds
Touzé, Olivier ULg

Conference (2016, January 29)

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See detailTwo cases of atypical CALR mutations in MPN patients
SAGOT, Clémence ULg; CHARLIER, Hélène ULg; KOOPMANSCH, Benjamin ULg et al

Poster (2016, January 29)

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See detailSalt but not glucocorticoïds enhances Th17 differentiation from naïve T cells in vitro
Delens, Loïc ULg; SERVAIS, Sophie ULg; Vrancken, Louise et al

Poster (2016, January 29)

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See detailUn laboratoire d'auto-immunité paperless: mythe ou réalité?
LUTTERI, Laurence ULg

Conference (2016, January 29)

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See detailContribution of Capillary Electrophoresis and Ion Mobility Spectrometry to probe conformational change during desolvation
Far, Johann ULg; Delvaux, Cédric ULg; Kune, Christopher ULg et al

Conference (2016, January 28)

The transfer of ions from the solution to the gas phase is a critical step to produce « native species ». Coming from a highly solvating medium, ionic species will tend to find a new equilibrium ... [more ▼]

The transfer of ions from the solution to the gas phase is a critical step to produce « native species ». Coming from a highly solvating medium, ionic species will tend to find a new equilibrium conformation in the gas phase. The pathway to reach the thermodynamically stable conformation involves crossing potential barriers of different heights. When these barriers are too high compared to the internal energy of the ions, it will result in “partial memories” (as structural preservation) of the conformation in solution. In order to evaluate the effect of the solvent evaporation and of the various collision processes encountered by the ions in the mass spectrometer, we developed two strategies: The first strategy consists in comparing in a single experiment the shape of the ions in solution and in the gas phase. Data are obtained by coupling Capillary Electrophoresis (CE) with Ion Mobility Mass Spectrometry (IMS). Drift times in solution and in the gas phase are directly compared. Deviations from their correlation points out changes in folding upon desolvatation. Preliminary results show that some of peptides issued from tryptic digest of BSA clearly change their conformation during desolvatation. The second strategy consists to monitor the shape of the different conformers observed for the intact cytochrome C during native runs in capillary electrophoresis and “native” ion mobility mass spectrometry, both using a physiological TRIS acetic pH7 buffer compared to a “MS friendly” ammonium acetate pH7 buffer. Finally as preliminary study, we proposed to use homopolymers for better understanding about the folding behavior in gas phase and the resulting shape of these ions using ion mobility spectrometry. [less ▲]

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See detailGeoarchaeology of the Ancient Harbour of Utica in a Deltaic Context (2014 and 2015)
Pleuger, Elisa ULg; Gadhoum, Ahmed; Abichou, Hakim et al

Conference (2016, January 28)

Ancient authors mention Utica as a maritime and port city and estimate its origin around the 11th c. BC. However, in the present state of research, no archaeological evidence is earlier than the 9th c. BC ... [more ▼]

Ancient authors mention Utica as a maritime and port city and estimate its origin around the 11th c. BC. However, in the present state of research, no archaeological evidence is earlier than the 9th c. BC, and the location of the Phoenician and Roman port infrastructures remains unknown. Today, the ancient city is located on a promontory in the heart of the Medjerda delta, 10 km inland. Based on this observation, our geoarchaeological research focuses on two main issues: - Was there a marine environment around the promontory of Utica, which could shelter harbour structures? - Why the city, formerly a seaport city, is today located 10 km from the coast? Can the wadi be solely responsible of such an important sediment accumulation in a few millennia? Have any natural or anthropogenic factors influenced this deltaic progradation over the centuries? First results permitted drawing an hypothesis of the coastline during Antiquity to the effect that the Utica promontory was surrounded by the sea in an earlier era. (1) Effectively, the «North compartment» of the delta was covered by the sea at a given time, which will be determined by the next radiocarbon dating. But the sea still brushed the north side of the promontory during the Roman period, as evidenced by the potsherds found in one of the cores. This deep marine bay could be a potential location for harbour infrastructure prior to clogging of the bay by the sediments carried by the wadi. (2) The «corridor» area, materialised by the promontories of Utica and Kalâat el-Andalous, was also invaded by the sea at one time. The many artifacts found in this core attest the occupation of this area, outside of the maximal extension of the ancient city according to A. Lézine. Dating of the marine units in the two cores will bring essential data: * to establish the chronological framework of the retreat of the coastline and of the clogging of the bay; * to understand the passage of the Medjerda into the «North compartment» by the corridor Utica-Kalâat. The geoarchaeological results corroborate ancient sources. Utica was able to welcome important harbour structures, since the presence of a deep marine environment is attested around the promontory, but these remains are probably 5 m deep under the alluvium of the Wadi Medjerda. [less ▲]

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See detailHéroïsme en clôture : de la contemplative silencieuse à l’amazone chrétienne. Discours et représentations de l’héroïsme féminin sous la plume d’annonciades célestes au XVIIe siècle
Henneau, Marie-Elisabeth ULg

Conference (2016, January 28)

Les annonciades célestes – ordre féminin d’origine génoise fondé en 1604 et implanté en pleine Guerre de Trente Ans sur la Dorsale catholique, face aux territoires protestants – ont produit une nombre ... [more ▼]

Les annonciades célestes – ordre féminin d’origine génoise fondé en 1604 et implanté en pleine Guerre de Trente Ans sur la Dorsale catholique, face aux territoires protestants – ont produit une nombre considérable de chroniques, annales, journaux, mémoires, biographies spirituelles, abrégés de vertus, lettres, autobiographies et autres billets d’humeur, autant de témoignages d’expériences, vécues en espace clos, mais toujours en prise sur le monde, en quête d’éternité, mais sans cesse plongées dans le temps en cours. Des expériences riches et singulières, qui ont eu souvent raison des timidités ou des retenues des intéressées pour aboutir à des relations particulièrement savoureuses où alternent écriture de soi et écriture de l’histoire. Cette documentation inédite et pour une bonne part inexploitée – au contraire des fonds relatifs aux Visitandines – permet, notamment, d’approcher leur conception de la moniale tridentine idéale, mise en scène et en mots par des autrices dont le génie littéraire n’égale sans doute pas les grandes plumes de Port-Royal, mais dont la production révèle tant le large éventail de représentations de soi élaborées par les annonciades que la réception intra muros des discours tenus à leur propos dans le siècle. Contemplatives vouées à une très stricte clôture, ces femmes se voient néanmoins en missionnaires conquérantes d’un espace à (ré)évangéliser. Il s’agira d’étudier d’une part comment elles intègrent les recommandations de leur entourage masculin qui les incitent à la discrétion, à l’effacement, au silence, bref, à un héroïsme comparable à celui de la Vierge, qui dans le secret de sa chambre n’en conçoit pas moins le Sauveur de l’humanité et, d’autre part, et sans que cela soit contradictoire, comment ces cloîtrées vivent les péripéties de leur expansion en aventurières de Dieu et souhaitent, en les narrant, manifester au monde leur héroïsme au service de la Réforme catholique. [less ▲]

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See detailCombining acceleration techniques for pricing in a VRP with time windows
Michelini, Stefano ULg; Arda, Yasemin ULg; Küçükaydin, Hande

Conference (2016, January 28)

In this study, we investigate a solution methodology for a variant of the VRP with time windows. The cost of each route depends on its overall duration (including waiting times), while the departure time ... [more ▼]

In this study, we investigate a solution methodology for a variant of the VRP with time windows. The cost of each route depends on its overall duration (including waiting times), while the departure time of a vehicle is a decision variable. Furthermore, each route has a maximum permitted duration. In order to solve this problem with a branch-and-price methodology, we study also the associated pricing problem, an elementary shortest path problem with resource constraints (ESPPRC). Compared to the classical ESPPRC, this variant admits an infinite number of Pareto-optimal states. In order to tackle this, it was shown in [1] that it is possible to represent the total travelling time as a piecewise linear function of the service start time at the depot. Together with this representation, an appropriate label structure and domi- nance rules are proposed and integrated into an exact bidirectional dynamic programming algorithm [2]. It is possible to implement certain acceleration techniques in the dynamic program- ming algorithm used to solve the pricing problem. We focus on two of these techniques: decremental state space relaxation (DSSR), introduced in [3], and ng-route relaxation, in- troduced in [4] and [5]. DSSR aims to enforce gradually the constraints on the elementarity of the path, which adversely affect the number of generated and dominated labels. A set of critical nodes is iteratively populated, and elementarity is enforced only on these critical nodes. When using ng-route relaxation, a neighbourhood is defined for each vertex. Then, the labels are extended such that, thanks to this neighbourhood structure, it is possible to allow only cycles that are relatively expensive and therefore less likely to appear in the optimal solution. In this study, we explore several different strategies used to apply these techniques, for example initialization strategies for the critical vertex set in DSSR, or the size of the neighbourhoods for ng-route relaxation. We also analyze two ways of combining DSSR and ng-route relaxation. The different algorithmic choices are represented as categorical parameters. The categorical parameters, together with the numerical ones, can be tuned with tools for automatic algorithm configuration such as the irace package [6]. We discuss how this column generation procedure can be included as a component in the development of a matheuristic based on the idea in [7], which consists in a collaboration scheme between a branch-and-price algorithm, an exact MIP solver, and a metaheuristic. [less ▲]

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See detailTightening linearizations of non-linear binary optimization problems
Rodriguez Heck, Elisabeth ULg; Crama, Yves ULg

Conference (2016, January 28)

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Peer Reviewed
See detailHolocene paleoenvironmental reconstructions from speleothem and peat bog archives
Allan, Mohammed ULg; VERHEYDEN; CRUCIFIX, Michel et al

Poster (2016, January 28)

The geological materials (speleothems and peatbogs) presented in Belgium (Hautes-Fagnes Plateau, Ardennes caves) are interesting archives for atmospheric pollution record and climate variability. Both ... [more ▼]

The geological materials (speleothems and peatbogs) presented in Belgium (Hautes-Fagnes Plateau, Ardennes caves) are interesting archives for atmospheric pollution record and climate variability. Both archives are easily dated (U/Th and counting for laminated speleothems, 210Pb and 14C for peatbogs), have a high temporal resolution (decadal to seasonal), contain multiple measurable parameters (elemental geochemistry, stable isotopes, radiogenic Nd and Pb isotopes, pollens, rates of peat humification, luminescence and thickness of laminated speleothems) and depending on environmental conditions of temperature and / or humidity. The aim of this study is to determine the sensitivity of both archives (speleothems and peatbogs) to human perturbations and climate changes. Our ultimate goal is to contribute to a better understanding of natural interglacial climate variability by generating and confronting high resolution paleoclimate reconstructions from 2 continental archives. [less ▲]

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See detailQuand Simon obsédait les moines : le scriptorium de Saint-Trond dans la première moitié du XIIe siècle
Schmidt, Kevin ULg

Conference (2016, January 27)

Étudier l’histoire des relations extérieures d’une communauté cloitrée peut sembler paradoxal. En effet, pourquoi des hommes qui ont choisi de vivre loin de la société séculière s’inquiéteraient-ils de la ... [more ▼]

Étudier l’histoire des relations extérieures d’une communauté cloitrée peut sembler paradoxal. En effet, pourquoi des hommes qui ont choisi de vivre loin de la société séculière s’inquiéteraient-ils de la situation du monde extérieur ? Poser la question revient à souligner un fait indéniable, en parfaite contradiction avec la vie monastique : les interactions entre les monastères et le siècle se sont de tout temps avérées intenses, qu’elles soient justifiées par de nécessaires échanges commerciaux, par l’immixtion des laïcs dans la gestion du temporel de la communauté ou, au contraire, des abbés dans la politique régionale. À ce titre, la situation de l’abbaye de Saint-Trond au début du XIIe siècle constitue un excellent exemple. Menacée fréquemment par son avoué, à la merci d’une attaque du duc de Louvain, la communauté trudonnaire dut choisir intelligemment ses alliés et lutter contre ses opposants. Dans ce contexte, étudier et comparer les textes non normatifs produits au sein du scriptorium du monastère durant la 1ère moitié du XIIe siècle (Gesta abbatum Trudonensium, poèmes, traités didactiques ou textes polémiques) permet de mieux comprendre les combats que les moines menaient dans le silence du cloître, avec leurs armes de prédilection que sont la plume et le parchemin. Les textes rédigés au sein de l’abbaye se caractérisent ainsi par une forte réflexion anti-simoniaque, suscitée par les idées réformatrices et le positionnement politique de l’un de ses abbés les plus importants, Raoul (1108-1138). À l’occasion des 3e rencontres doctorales du département de recherche Transition consacrées aux documents, aux méthodes et aux concepts, nous exposerons quelques conclusions provisoires de notre recherche, toujours en cours, et qui, au-delà d’une enquête strictement politico-institutionnelle, doit permettre d’écrire une nouvelle page d’histoire des mentalités monastiques. [less ▲]

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See detailHolocene paleoenvironmental reconstructions from Belgian peatbog
Allan, Mohammed ULg; VERHEYDEN, sophie; Le roux, gael et al

Conference (2016, January 27)

Atmospheric deposition is an important part of the global climate system, and plays a key role in the marine and terrestrial biogeochemical cycles as a source for major and trace nutrient elements ... [more ▼]

Atmospheric deposition is an important part of the global climate system, and plays a key role in the marine and terrestrial biogeochemical cycles as a source for major and trace nutrient elements. Reconstruction of atmospheric deposition is crucial to understand the effects of the increased atmospheric depositions induced by humans on the environment and to help understanding Holocene climate variability. This study investigated potential paleoenvironmental proxies provided by major and trace elements and stable isotopes compositions of peat bogs. Peat bog cores were collected from Hautes-Fagnes plateau (Misten bog) (SE-Belgium). The analyses of Rare Earth Elements (REE) and lithogenic element concentrations as well as Nd isotopes were performed by HR-ICP-MS and MC-ICP-MS respectively, in a  7 m peat section representing 7300 years, dated by 210Pb and 14C methods. The Misten bog is highly affected by atmospheric supplies (natural and anthropogenic) and can be used to establish the changes in atmospheric dust during the Mid-Late Holocene. Dust fluxes show pronounced increase at 3200-2800BC, 600BC, AD600, 1000AD, 1200AD and from 1700 AD corresponding to local and regional human activities combined with climate change. Peat humification and testate amoebae were used to evaluate hydroclimatic conditions. The Nd values show large variability, between -5 and –13, identifying three major sources of dust: local soils, distal volcanic and desert particles. Our results provide evidence that climate forcing may be detected in ombrotrophic peat, even for the historical period that is characterised by a mixed climate-human control. [less ▲]

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Peer Reviewed
See detailIn vitro monitoring of human tissue degradation by TD-GC×GC-TOFMS
Stefanuto, Pierre-Hugues ULg; Dubois, Lena ULg; DELPORTE, Géraldine ULg et al

Conference (2016, January 27)

Human rescue dog unit are amongst the most efficient tools to locate cadaver or individuals trapped after a natural disaster. However, the dog training process is long and expensive. Dog trainers are ... [more ▼]

Human rescue dog unit are amongst the most efficient tools to locate cadaver or individuals trapped after a natural disaster. However, the dog training process is long and expensive. Dog trainers are still looking for a better understanding of the dog olfaction matching mechanism to improve their training methods (1). How does the decomposition process differ between organs? Are there specific body parts better suited for dog training? What are the major volatile compounds responsible of the dogs’ match response? In the line of these questions, this project was monitoring the headspace of various human organs during the decomposition process. Five different organs, from five different bodies, were used: heart, lung, liver, kidney, and blood. Each organs were sampled in triplicates and let to decompose in glass jar. Regularly, the headspace of the jar was sampled by dynamic pumping to sorbent tubes that were further be desorbed on a comprehensive two-dimensional gas chromatography system (GC×GC). GC×GC is a powerful analytical tool that allows the resolution of “the smell of death”, i.e. the decomposition odor (2-3). The development of an in vitro approach for decomposition monitoring provided several analytical improvements in the decomposition field. Indeed, the study of dead bodies is always limited in the number of replicates (4). The sampling process developed for this project allows intra and inter corpse comparison with at least triplicates sampling. These comparisons were conducted using advanced chemometric methods (Fisher ratio, PCA, hierarchical analysis…) that will contribute to better understand key parameters of rescue the dog training. References 1. Hoffman et al. FSI (2009) 186, 6-13. 2. Stefanuto et al. CPC (2014) 79, 786-789. 3. Perrault et al. J. Sep. Sci. (2015) 38, 73-80. 4. Stefanuto et al. ABC (2015) 407, 4767-4778 [less ▲]

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See detailThe City museum : a concept with multiple interpretations
Postula, Jean-Louis ULg

Conference (2016, January 27)

As early as the second half of the nineteenth century, some major European cities have developed museums to expose their history. This movement has then grown throughout the twentieth century around the ... [more ▼]

As early as the second half of the nineteenth century, some major European cities have developed museums to expose their history. This movement has then grown throughout the twentieth century around the world. At the beginning of the third millennium, the phenomenon is more relevant than ever, as evidenced by numerous projects of creation and renovation of such institutions. Nevertheless, it took a long time before that kind of museums began to be considered as part of a specific museum category, with its own characteristics and challenges. It is only in 1993, at the Museum of London, that representatives of museums devoted to the study of cities met for the very first time, in order “to discuss [their] problems, to develop theories and to promote [their] special place in the museum movement worldwide” (HEBDITCH Max, “Key-note address”, in JOHNSON Nichola (ed.), Reflecting cities, London, 1993, p. 1). The expression “city museum” took shape for this occasion, with the creation at the end of the symposium of a first International Association of City Museums, followed subsequently by other organizations. The purpose of this presentation is to provide an overview of the multiple interpretations and meanings attached to the quite recent concept of “city museum”, examined through its different uses and definitions within the museological literature. The analysis of these speeches will highlight the fact that there are no unanimously established uses of the expression among the specialists. It will also show that, as a museum category, city museum is an object whose identity is still under construction. [less ▲]

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See detailEvolution of the palaeoenvironment of the Medjerda delta (Tunisia) and geoarchaeology of the ancient city of Utica
Pleuger, Elisa ULg; Abichou, Hakim; Gadhoum, Ahmed et al

Conference (2016, January 27)

Phoenician Utica remains today largely unknown, as is its role in the Phoenician expansion in the western Mediterranean. Aristotle and Pliny the Elder mention Utica as a maritime and port city and ... [more ▼]

Phoenician Utica remains today largely unknown, as is its role in the Phoenician expansion in the western Mediterranean. Aristotle and Pliny the Elder mention Utica as a maritime and port city and estimate its origin around the 11th c. BC. However, in the present state of research, no archaeological evidence is earlier than the 9th c. BC, and the location of the Phoenician and Roman port infrastructures remains unknown. Today, the ancient city is located on a promontory in the heart of the Medjerda delta, 10 km inland. This project proposes an interdisciplinary effort to understand the Medjerda delta landscape changes during the Holocene. It starts from an archaeological problem and proposes the contribution of geoarchaeology to the understanding of the relationship between ancient societies and their environment. The fluvial palaeoenvironments and sedimentary processes are studied through the mechanical extraction of cores (15-20 m deep) to reach the early Holocene. Selected sediment samples are then studied in laboratory, using different and complementary approaches. The location of port infrastructures will bring initial answers to the question of the foundation of the city. The study of river palaeoenvironments of the Medjerda delta during the Holocene aim at a better understanding of the nature of the settlement, as well as the function of the city of Utica over time. This study will also assess the impact of the ancient city on the environment and understand how the city adapted to the mobility of this Mediterranean delta. Furthermore, the analysis of sedimentary processes causing the filling of the harbour basin will lead to speculation about the causes of the abandonment of the structures and more generally the decline of the city in favor of Carthage. It will also examine whether natural or anthropogenic factors have influenced this deltaic progradation over the centuries. [less ▲]

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See detailTravail en laboratoire de niveau de confinement 2 (L2)
Grignet, Christine ULg

Conference (2016, January 26)

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See detailTailored made degradable synthetic polymers for 3D (bio)printing
Grandfils, Christian ULg

Conference (2016, January 26)

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See detailHydrogeological conditions required for Underground Pumping Storage Hydroelectricity (UPSH) in old mines
Bodeux, Sarah ULg; Pujades, Estanislao ULg; Orban, Philippe ULg et al

in Abstract book (2016, January 26)

Renewable energy sources, because of their intermittence, could not afford a stable production and an adequate variability according to the energy demand. Underground Pumped Storage Hydroelectricity (UPSH ... [more ▼]

Renewable energy sources, because of their intermittence, could not afford a stable production and an adequate variability according to the energy demand. Underground Pumped Storage Hydroelectricity (UPSH) using abandoned mine works is an interesting alternative, in flat regions, to store energy during low demand periods by pumping water from an underground mine to an upper reservoir. From the hydrogeological point of view, two considerations can arise for studying the feasibility before constructing an UPSH plant: 1) the alteration of the natural conditions of surrounding aquifers, and (2) the efficiency of the plant depending on possible leakage in the cavities from the hydrogeological environment. A potential old slate mine was selected through a multi-criterion method and its geometrical and hydrogeological characteristics are used to build a simple but typical model. With the help of the HFEMC approach implemented in the code SUFT3D (HEG-ULg), the groundwater flows are modelled for a representative cavity. Simulations of groundwater flow induced by a UPSH system are performed and the main variables are identified. Piezometric heads around the reservoir oscillate, the magnitude of the oscillations and the time to achieve a pseudo-steady state (magnitude and head reached during oscillations not varying anymore with time) depend on the boundaries, the parameters of the aquifer and the characteristics of the underground reservoir. The required hydrogeological conditions are deduced and a screening methodology can be proposed to assess the main impacts caused in aquifers by UPSH plants. Their efficiency regarding the water level evolution inside the reservoir is also considered accommodating the cyclic pumped storage schemes. [less ▲]

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See detailUn nouveau regard sur la tenture des Travaux d’Hercule de Marie de Hongrie (Patrimonio Nacional, série 23)
Laruelle, Anne-Sophie ULg

Conference (2016, January 26)

Les exploits d’Hercule suscitent depuis l’Antiquité de multiples interprétations et constituent l’un des thèmes littéraires et artistiques les plus appréciés à la Renaissance. Plus que toute autre figure ... [more ▼]

Les exploits d’Hercule suscitent depuis l’Antiquité de multiples interprétations et constituent l’un des thèmes littéraires et artistiques les plus appréciés à la Renaissance. Plus que toute autre figure antique, Hercule sert d’exemple aux souverains car il est considéré comme le modèle par excellence de la "vertu active". Ses Travaux sont l’une des sources d’inspiration majeures de la tapisserie flamande au XVIe siècle. Cette communication ambitionne d’apporter un nouvel éclairage sur la tenture en douze pièces achetée en 1535 par la régente des anciens Pays-Bas, Marie de Hongrie, à l’atelier bruxellois Dermoyen. Nous verrons que cette tenture connaît un véritable succès, qui conduit les ateliers flamands à réaliser de nombreuses rééditions jusqu’à la fin du siècle. Notre intervention, fondée sur une méthode déjà bien établie par les spécialistes de la tapisserie, s’articulera autour des quatre composantes principales de ce genre artistique : les pièces existantes et leur iconographie, la manufacture qui les a tissées, les artistes qui en ont fourni les modèles aux liciers, et enfin le commanditaire. [less ▲]

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See detailLe notaire dans la régulation sociale des conflits violents dans la Principauté de Liège aux XVIIe et XVIIIe siècles
Drécourt, Aurore ULg

Conference (2016, January 26)

Les actes notariés constituent des sources d’une grande richesse pour l’historien et ont permis de nombreuses études. Inventaires, testaments, contrats de mariage sont autant de documents qui ont ... [more ▼]

Les actes notariés constituent des sources d’une grande richesse pour l’historien et ont permis de nombreuses études. Inventaires, testaments, contrats de mariage sont autant de documents qui ont renouvelé notre connaissance de la vie sociale et économique des populations d’autrefois. Toutefois, les actes réalisés par les notaires sont d’une telle variété qu’ils n’ont pas encore révélé tous leurs secrets. Glissés entre des centaines de documents à valeur économique, certains actes nous renseignent sur la violence de la société d’Ancien Régime et sur les solutions mises en œuvre pour la réguler. Ce genre d’étude s’est appuyé durant des décennies sur des archives judiciaires. Toutefois, il est de plus en plus acquis parmi les historiens de la justice que les populations d’Ancien Régime n’allaient pas systématiquement devant le juge pour régler leurs différends mais préféraient opter pour d’autres stratégies de résolutions de conflits. Le notaire a, à ce titre, joué un rôle majeur. Il est celui devant lequel on établit des accommodements. Il est aussi celui qui retranscrit et authentifie le récit subjectif des victimes, témoins ou agresseurs, qui seront ensuite, selon le choix du comparant, enregistrées ou non au greffe. Aussi l’étude des sources notariales offre-t-elle à l’historien la possibilité de saisir des récits qui ne seraient sans doute jamais parvenues à sa connaissance par la seule étude des archives criminelles. De plus, elles ont l’avantage de présenter des couches plus modestes de la population et de montrer que le judiciaire n’est pas la voie unique, voire préférée, pour régler les conflits. La présente communication propose de montrer toute la richesse de ces documents si peu étudiés par les historiens, le tout dans le cadre de la Principauté de Liège au XVIIe siècle. [less ▲]

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See detailHow heterogeneity of the K-field influences a heat plume in a shallow alluvial aquifer: responses from a heat tracer test
Klepikova, Maria; Jamin, Pierre ULg; Orban, Philippe ULg et al

in Abstract book (2016, January 26)

Simultaneous solute and heat tracer test provides essential information for a reliable assessment of low temperature geothermal systems. The actual efficiency of ‘open systems’, including heat storage ... [more ▼]

Simultaneous solute and heat tracer test provides essential information for a reliable assessment of low temperature geothermal systems. The actual efficiency of ‘open systems’, including heat storage projects, is strongly affected by the heterogeneity of the hydraulic conductivity field (K-field). It could be also useful for assessing the cumulative impacts of numerous projects in urban areas on the groundwater resources. Using field data from a solute and heat tracer test conducted in the alluvial aquifer of the Meuse River (Belgium), an inverse problem of parameter estimation is solved. The tracing experiment consisted in simultaneously injecting heated water and a dye tracer in a piezometer and monitoring the evolution of groundwater temperature and tracer concentration in the recovery well and in monitoring wells. To get insights in the 3D characteristics of the heat plume, an arrangement of three transects of observation wells was used. The breakthrough curves measured in the recovery well showed that heat transfer in the alluvial aquifer is slower and more dispersive than solute transport. Recovery is very low for heat while in the same time it is measured as relatively high for the solute tracer. This is due to the fact that heat transport is a thermal diffusion dominated process. For conditions corresponding to high Peclet numbers, the hydraulic conductivity is the primary calibration parameter for predicting heat plume distribution. Heat diffusion is larger than molecular diffusion, implying that exchange between groundwater and the porous medium matrix is far more significant for heat than for solute tracers. [less ▲]

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See detailUnravelling the roles of lysine acetylation by Elp3 during inner ear development
Mateo Sanchez, Susana ULg; Delacroix, Laurence ULg; Freeman, Stephen ULg et al

Poster (2016, January 25)

We planned to investigate the role of Elp3 acetyl-transferase, a member of the Elongator complex, in inner ear formation. We first analysed the spatio-temporal pattern of Elp3 mRNA expression and showed ... [more ▼]

We planned to investigate the role of Elp3 acetyl-transferase, a member of the Elongator complex, in inner ear formation. We first analysed the spatio-temporal pattern of Elp3 mRNA expression and showed that it was expressed in the entire early otocyst at E11.5 and persisted later in the sensory epithelium of the cochlea, in the spiral ganglion and in the vestibule. To unravel functions of Elp3, we used conditional knock-out mice in which Elp3 gene is deleted from early otocyst (Elp3cKO). We submitted these mice to a battery of vestibular testing and found significant abnormalities. Besides, the auditory brain stem response of Elp3cKO indicated that these mice are severely deaf. We were also able to demonstrate an increased level of apoptosis in the Elp3cKO spiral ganglion leading to a reduced number of neurons and fibers innervating the sensory cells as well as a reduced number of their synaptic ribbons. Moreover, the remaining spiral ganglion neurons extend processes showing clearly defects regarding sensory cell innervation. In conclusion, our results clearly show a role for Elp3 both in hearing and balance. We plan to go deeper in the mechanisms involved through the identification of the proteins that are targeted for acetylation by Elp3. [less ▲]

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See detailTargeted and random mutagenesis of orphan GPCRs of the SREB family
Laschet, Céline ULg; Dupuis, Nadine ULg; Derj, Anouar ULg et al

Poster (2016, January 25)

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See detailTreg, Th17 and γδ T cells during normal and abortive pregnancy
Polese, Barbara ULg; Gridelet, Virginie ULg; Munaut, Carine ULg et al

Poster (2016, January 25)

Detailed reference viewed: 19 (5 ULg)