References of "Scientific congresses and symposiums"
     in
Bookmark and Share    
Full Text
See detail4. La fumure azotée
Meza Morales, Walter ULg; Monfort, Bruno; Dumont, Benjamin ULg et al

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 11 (1 ULg)
Full Text
See detail10.1. L'intérêt de la culture en association de froment et de pois protéagineux d'hiver dans un objectif d'autonomie protéique
Pierreux, Jérome ULg; Delaplace, Pierre ULg; Roisin, Christian et al

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 19 (4 ULg)
Full Text
See detail6. Lutte intégrée contre les maladies
Bataille, Charlotte; Duvivier, Maxime; Heens, Benoît et al

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 9 (0 ULg)
Full Text
See detail5. Régulateurs de croissance
Henriet, François; Monfort, Bruno; Meza Morales, Walter ULg

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 11 (0 ULg)
Full Text
See detailVers un nouvel ancrage sociétal du cours d’éducation physique
Cloes, Marc ULg

Conference (2016, February 24)

Since two decades, a growing number of publications underlines the increase of the sedentariness of the society and, in parallel, that of the number of overweight people. It has been demonstrated that ... [more ▼]

Since two decades, a growing number of publications underlines the increase of the sedentariness of the society and, in parallel, that of the number of overweight people. It has been demonstrated that these evolutions will have negative consequences on the health of the citizen at mid and long terms. School is identified as one of the main pillars of the promotion of a physically active lifestyle. By the competences that they acquire during their studies, physical educaiton teachers are considered as the potential corner stone of actions to be implemented in order to allow youth to become citizen responsible of their body and to learn how to use it longlife. That implies reinforcing application of principles that physical educators know very well but that are not necessary integrated systematically in the professional practice. Beforehand to the action on the gym, it means that specific appraoches of teachers education (pre- and in-service) have to be implemented. The presentation proposes to review the current developments and will emphasize the share of good practices in teaching as well as in teacher education. [less ▲]

Detailed reference viewed: 47 (1 ULg)
Full Text
See detail10.2. Evaluation des cultures dérobées implantées en tant que surfaces d'intérêt écologique (SIE) dans le cadre de la PAC 2015-2020
Hancart, F.; Jenet, D.; Lambert, B. et al

in Watillon, B.; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 13 (6 ULg)
Full Text
See detail2. Implantation des cultures
Eylenbosch, Damien ULg; Meza Morales, Walter ULg; Monfort, Bruno et al

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2016, February 24)

Detailed reference viewed: 13 (2 ULg)
See detail"Témoigner-pour-mourir" : notes sur Sartre, Bourdieu et le passage par la biographie
Cormann, Grégory ULg

Conference (2016, February 22)

Detailed reference viewed: 25 (2 ULg)
See detailEsquisse d'une méthode et questions émotionnelles
Englebert, Jérôme ULg

Conference (2016, February 22)

Detailed reference viewed: 35 (5 ULg)
See detailDoes sector-specific experience matter? The case of European higher education ministers
Jacqmin, Julien ULg

Conference (2016, February 22)

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailBouger plus: Retour vers le futur
Cloes, Marc ULg

Conference (2016, February 22)

Bouger plus est un projet visant à encourager la pratique de l'activité physique chez les seniors. Il est né dans le cadre d'une collaboration entre le Service Intervention et Gestion en Activités ... [more ▼]

Bouger plus est un projet visant à encourager la pratique de l'activité physique chez les seniors. Il est né dans le cadre d'une collaboration entre le Service Intervention et Gestion en Activités physiques et sportives de l'Université de Liège, d'une part, la Commune d'Esneux, d'autre part. Après avoir analysé les caractéristiques des habitudes des habitants de la la commune en matière d'activité physique, des interventions ont été implantées auprès d'un public cible particulier: les seniors. Ceux-ci sont considérés comme des personnes de 50 ans et plus. L'exposé retracera les différentes étapes de cette collaboration fructueuse puisque, six ans après le lancement de cette initiative citoyenne, des cycles d'activités sont toujours proposés et rencontrent d'ailleurs toujours plus de succès. Une réflexion sera menée à propos de l'évolution en cours du concept et des options qui se présentent pour la pérennisation de ce projet. [less ▲]

Detailed reference viewed: 28 (2 ULg)
Peer Reviewed
See detailA typology of labour market intermediaries securing nonstandard career paths
Lorquet, Nadège ULg; Pichault, François ULg; Orianne, Jean-François ULg

Conference (2016, February 21)

In a context where the classical vision of organizational careers is eroded, this paper explores how Labour Market Intermediaries (LMIs) can secure nonstandard career paths. To characterize LMIs’ emerging ... [more ▼]

In a context where the classical vision of organizational careers is eroded, this paper explores how Labour Market Intermediaries (LMIs) can secure nonstandard career paths. To characterize LMIs’ emerging roles, we propose a multidimensional grid made up of 6 criteria likely to answer the following questions: 1) where do LMIs come from? 2) who is responsible for the matchmaking process? 3) when do LMIs secure career paths? 4) how do they support professional transitions? 5) what kind of information do they produce and diffuse on the labour market? 6) why do they intervene on the labour market? We validate this analytical framework through its application to five case studies selected to compare the roles LMIs can play in securing careers paths. Beyond the creation of an original grid, results outline two ideal-typical ways of securing transitions. On the one hand, some LMIs offer security by reconstructing internal labour markets and consider workers as ‘quasi-employees’. On the other hand, other LMIs suggest more disruptive solutions in which workers are supported in their job transitions ‘as if’ they were ‘quasi-self-employed’, i.e.: becoming fully responsible for their career. In the conclusion, we discuss societal challenges surrounding these two ideal-typical situations. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailElp3 Lysine Acetyl-Transferase Controls Neuronal Survival in the Developing Inner Ear and is Crucial to Balance and Hearing
Delacroix, Laurence ULg; Mateo Sanchez, Susana ULg; Freeman, Stephen ULg et al

Conference (2016, February 20)

Elp3 lysine acetyl-transferase, the catalytic subunit of the Elongator complex, has been assigned multiple roles in gene transcription, DNA methylation and protein translation efficiency. Given the ... [more ▼]

Elp3 lysine acetyl-transferase, the catalytic subunit of the Elongator complex, has been assigned multiple roles in gene transcription, DNA methylation and protein translation efficiency. Given the importance of acetylation homeostasis in controlling developmental processes together with recent reports implicating Elp3 in cortical neurogenesis, we investigated its role during inner ear formation. In the inner ear, we detected Elp3 transcript in the sensory epithelia of the entire otic vesicle at embryonic day E11.5. At later stages, Elp3 mRNA is strongly expressed in the vestibular and spiral ganglion neurons. To investigate the role of Elp3 in vivo, we used a conditional knock-out mice (Foxg1Cre) in which the expression of the acetyl-transferase is lost in early otocyst. These mice show obvious vestibular defects as indicated by a stereotyped circling ambulation, head bobbing, retropulsion and the absence of a reaching response in the tail-hanging test. Furthermore, we identified a severe hearing loss in Elp3cKO mice through Auditory Brainstem Responses. We show that Elp3 enzyme is crucial for neuronal survival in the spiral ganglion and in the vestibule and that it ensures a correct innervation pattern in the developing inner ear. In the absence of Elp3, a drastic increase in the number of apoptotic neurons was detected by active Caspase-3 and pH2AX immunostainings, particularly during the early stages of development (between E12.5 and E14.5). Postnatally, the neurons remaining in Elp3cKO cochleae seem to establish synaptic contacts with the sensory cells but show obvious signs of cell damage as evidenced by Transmission Electron Microscopy. Taken together, these data support a role for Elp3 in hearing and balance and point out an important role for acetylation homeostasis during inner ear formation. We are currently investigating the molecular mechanisms underlying Elp3 effect on neuronal survival and pathfinding. [less ▲]

Detailed reference viewed: 29 (5 ULg)
Full Text
See detailLes dysphasies : nouvelles conceptions théoriques et implications cliniques
Maillart, Christelle ULg

Conference (2016, February 20)

Detailed reference viewed: 43 (3 ULg)
See detailIdentifying Late Egyptian Virtual Relative Clauses
Sojic, Nathalie ULg

Conference (2016, February 19)

Ancient Egyptian so-called "virtual" relative clauses (VRC) are adverbial clauses that function like relative clauses. Descriptions provided by Late Egyptian grammars inform students of their existence ... [more ▼]

Ancient Egyptian so-called "virtual" relative clauses (VRC) are adverbial clauses that function like relative clauses. Descriptions provided by Late Egyptian grammars inform students of their existence and of the possibility to translate them accordingly. But they are not of a great help if one wants to grasp and describe the Late Egyptian relativization system in a linguistic perspective. The talk, given on the occasion of the international Crossroads V conference, aimed at providing interpretive guidelines based on syntax, pragmatics and Discourse Analysis. In my communication, I showed that Discourse Analysis proved to be very fruitful in clarifying some contexts of use of LEg VRCs as well as some interpretive processes. [less ▲]

Detailed reference viewed: 20 (1 ULg)
Peer Reviewed
See detailComputerized adaptive and multi-stage testing with R
Yan, Duanli; Magis, David ULg

Conference (2016, February 19)

Computerized Adaptive Testing (CAT) has greatly improved the accuracy and efficiency of psychological testing for decades. Multistage Testing (MST) has received much of attention recently. MST is similar ... [more ▼]

Computerized Adaptive Testing (CAT) has greatly improved the accuracy and efficiency of psychological testing for decades. Multistage Testing (MST) has received much of attention recently. MST is similar to CAT such that it allows the adaptation of the difficulty of the test to the level of ability of a test taker. Specifically, in MST, items are interactively selected for each test taker, but rather than selecting individual items, groups of items are selected and the test is built in stages. Over the last decade, researchers have investigated ways for an MST to incorporate most of the advantages from CAT and linear testing, while minimize their disadvantages. These features include testing efficiency and accuracy, greater control of test content, more robust item review, as well as simplified test assembly and administration. Therefore, MST can be an effective compromise between CAT and linear testing, embedding features and benefits from both designs. Thus, MST becomes of more and more interest to researchers and practitioners as technology advances. This presentation will first provide a general overview of a multistage test (MST) design and its important concepts and processes. It will then present the latest development on CAT and MST using R, the mstR package. The presentation will also illustrate how to simulate MST administrations using mstR package, and discuss some practical issues and considerations for MST from design to applications. [less ▲]

Detailed reference viewed: 85 (0 ULg)
Full Text
See detailBlack British women filmmakers: towards a genderracial Cinema ?
Herbert, Emilie ULg

Conference (2016, February 19)

Detailed reference viewed: 21 (1 ULg)
Full Text
Peer Reviewed
See detailDe uitspraak van Franstalige CLIL-leerders van het Nederlands
Vanackere, Laurine; Van Pée, Marie; Hiligsmann, Philippe et al

Conference (2016, February 19)

Detailed reference viewed: 24 (0 ULg)
Peer Reviewed
See detailSecond argument realization in Earlier Egyptian
Motte, Aurore ULg; Winand, Jean ULg

Conference (2016, February 18)

Detailed reference viewed: 18 (4 ULg)
Peer Reviewed
See detailThe Egyptianness of the Coptic basic vocabulary: A typological view
Grossman, Eitan; Polis, Stéphane ULg

Conference (2016, February 18)

The notion of ‘basic vocabulary’ is associated with the linguist and anthropologist Morris Swadesh, who proposed a list of 200 (and later 100) items. These lists, while widely used in historical and ... [more ▼]

The notion of ‘basic vocabulary’ is associated with the linguist and anthropologist Morris Swadesh, who proposed a list of 200 (and later 100) items. These lists, while widely used in historical and comparative linguistics, are based on Swadesh’s intuitions rather than on empirical research. More recently, however, the Leipzig Loanword Typology Project conducted a cross-linguistic survey of loanwords (Haspelmath & Tadmor 2009). One of the results is a 100-item list of basic vocabulary entries — the ‘Leipzig-Jakarta list of basic vocabulary.’ This list is the product of four factors, computed for a database of 1440 meanings in 41 languages: borrowability, representation in the database, analyzability / simplicity, and age. As Tadmor (2009) points out, this is the first list of basic vocabulary items based on extensive cross-linguistic comparison, and it constitutes a ‘full-fledged basic vocabulary’ that ‘comprises the notions normally associated with this concept: stability (our age score), universality (our representation score) and simplicity (our analyzability score), as well as resistance to borrowing (our unborrowed score)’ (2009: 68). In this talk, we examine this list of 100 meanings in order to evaluate the influence of Greek on the Coptic basic vocabulary, or — to put it the other way around — the ‘Egyptian¬ness’ of the Coptic lexicon, which seems to reflect an intense language contact situation. As a first step, Coptic data were collected from Crum (1939), the most extensive Coptic dictionary, for four dialects: Sahidic, Bohairic, Fayyumic, and Akhmimic. All Coptic lexemes associated with a meaning on the list were collected, even if poorly attested. Additionally, a questionnaire was been submitted to Copticists in order to detect Greek loanwords that would also be used for expressing these 100 meanings. Furthermore, we used etymological tools (Černý 1976; Westendorf 1977; Vycichl 1983) in order to attribute an age score (from 0 = Greek loanword to 4 = Old Egyptian) to the lexemes at two levels: the formal level (when is the word first attested in Ancient Egyptian) and the semantic level (when is the Coptic meaning first associated with this word). The vast majority of meanings (ca. 85%) have at least one pre-Coptic Egyptian cognate, most of which are already attested in Old Kingdom texts. As a result of this study, we are able (1) to evaluate the influence of Greek on the basic vocabulary of the main Coptic dialects, (2) to describe the basic vocabulary of Coptic dialects independently and to observe how they differ from one another, (3) to produce a first estimate of the rate of change in basic vocabularies over the course of Egyptian as a whole. [less ▲]

Detailed reference viewed: 24 (0 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 40 (10 ULg)
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 ▲]

Detailed reference viewed: 13 (0 ULg)
See detailRecyclable shape-memory materials based on photo- or thermo-reversible reactions
Defize, Thomas ULg; Riva, Raphaël ULg; Thomassin, Jean-Michel ULg et al

Poster (2016, February 16)

Shape-memory polymers (SMPs) are remarkable materials able to switch from a stressed deformed state (temporary shape) to their initial relaxed state (permanent shape) by the application of a stimulus ... [more ▼]

Shape-memory polymers (SMPs) are remarkable materials able to switch from a stressed deformed state (temporary shape) to their initial relaxed state (permanent shape) by the application of a stimulus, such as heat or light. Typically, the shape-memory property is generally observed for chemically or physically cross-linked polymers that exhibit an elastomeric behavior above a phase transition, e.g. glass or melting transition. As an example, cross-linked semi-crystalline poly(ε-caprolactone) (PCL) is widely studied for the development of SMPs. As most of SMPs are irreversibly cross-linked material, their reprocessing is impossible preventing any recycling. Thereby, reversible reactions, allowing the formation/cleavage of the network, raise tremendous interest for the development of new SMPs. Recently, we reported the preparation reversibly cross-linked PCL-based SMP using the Diels-Alder (DA) reaction between furan and maleimide end-groups of 4-arm star-shaped PCL, well-known to create reversible bonds. After implementation, this shape-memory material was demonstrated to be recyclable, and was characterized by excellent fixity and recovery before and after recycling experiments. However, the relatively low retro DA temperature of the furan-maleimide adducts led to an inelastic deformation during shape-memory tensile cycles. In order to get rid of this drawback, an alternative approach was investigated. The substitution of the DA reaction by a photo-reversible reaction, typically the photo-induced (2+2) cycloaddition of coumarins, was proposed to prepare cross-linked PCL matrix presenting one-way and two-way memory properties, since photolabile adducts are supposed to be stable during shape-memory tensile cycles. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
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 ▲]

Detailed reference viewed: 58 (8 ULg)
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 ▲]

Detailed reference viewed: 11 (0 ULg)
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 ▲]

Detailed reference viewed: 22 (0 ULg)
See detailDroit international et pacifisme en Belgique de 1870 à 1940 : une cohabitation complexe
Genin, Vincent ULg

Conference (2016, February 12)

Detailed reference viewed: 25 (2 ULg)
Full Text
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 ▲]

Detailed reference viewed: 18 (3 ULg)
Peer Reviewed
See detailBiologie, sociologie, philosophie. Le fait moral entre Durkheim et Bergson
Caeymaex, Florence ULg

Conference (2016, February 12)

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 60 (2 ULg)
See detailNitrous oxide dynamics in sea ice
Kotovitch, Marie ULg; Fripiat, François; Moreau, Sebastien et al

Poster (2016, February 12)

Fluctuations in greenhouse gases (GHGs) concentration alter the energetic budget of the climate system. There is high confidence that natural systems related to snow, ice and frozen ground (including ... [more ▼]

Fluctuations in greenhouse gases (GHGs) concentration alter the energetic budget of the climate system. There is high confidence that natural systems related to snow, ice and frozen ground (including permafrost) are affected. Nitrous oxide (N2O) is one of the potent GHG naturally present in the atmosphere, but witch has seen his concentration growing since industrial era. N2O has a lifetime in the atmosphere of 114 years and a global warming potential (GWP) of 298 to be compared to carbon dioxide that has a GWP of 1. N2O is also describe as the dominant ozone-depleting substance emitted in the 21st Century. Yet, there are still large uncertainties and gaps in the understanding of the cycle of this compound through the ocean and particularly in sea ice. Sources and sinks of N2O are therefore still poorly quantified. The main processes (with the exception of transport processes) involved in the N2O cycle within the aquatic environment are nitrification and denitrification. To date, only one study by Randall et al. present N2O measurements in sea ice. Randall et al. pointed out that sea ice formation and melt has the potential to generate sea-air or air-sea fluxes of N2O, respectively. Study on ammonium oxidation and anaerobic bacterial cultures shows that N2O production can potentially occur in sea ice. Denitrification can act as a sink or a source of N2O. In strictly anaerobic conditions, N2O is removed by denitrification. However, denitrification can also occur in presence of O2 at trace level concentrations (<0.2 mg L-1), and in these conditions there is a large N2O production. Recent observations of significant nitrification in Antarctic sea ice shed a new light on nitrogen cycle within sea ice. It has been suggested that nitrification supplies up to 70% of nitrate assimilated within Antarctic spring sea ice. Corollary, production of N2O, a by-product of nitrification, can potentially be significant. This was recently confirmed in Antarctic land fast ice in McMurdo Sound, where N2O release to the atmosphere was estimated to 4 µmol.m-2.yr-1. This assessment is probably an underestimate since it only accounts for dissolved N2O while a significant amount of N2O is likely to occur in the gaseous form like N2, O2 and Ar. Finally, nitrification produces little N2O in oxygenated waters but the N2O production yield from nitrification strongly increases as O2 levels decrease. Hence, it is not possible to distinguish the sources of N2O solely based on bulk N2O concentrations or environmental conditions, while deepened knowledge of processes is needed to well understand N2O emissions. [less ▲]

Detailed reference viewed: 29 (3 ULg)
Full Text
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 ▲]

Detailed reference viewed: 40 (6 ULg)
See detailAnnual dynamics of pCO2 within bulk sea ice and related CO2 fluxes at Cape Evans (Antarctica)
Van Der Linden, Fanny ULg; Champenois, Willy ULg; Heinesch, Bernard ULg et al

Poster (2016, February 12)

Sea ice is a biome actively participating in the regional cycling of CO2 as both a source and a sink at different times of the year. In the frame of the YROSIAE project (Year-Round Ocean-Sea-Ice ... [more ▼]

Sea ice is a biome actively participating in the regional cycling of CO2 as both a source and a sink at different times of the year. In the frame of the YROSIAE project (Year-Round Ocean-Sea-Ice-Atmosphere Exchanges), annual dynamics of sea ice pCO2 was compared with CO2 fluxes measured by automated accumulation chambers at Cape Evans (Ross Island, Antarctica). Results confirmed a general trend of brine pCO2 supersaturation with respect to the atmosphere during the late winter (concentration of dissolved inorganic carbon - DIC - in brine and brine expulsion in the brine skim) leading to CO2 degassing, and undersaturation during the spring (carbon-uptake by autotrophs and brine dilution) leading to atmospheric CO2 uptake. Despite high primary production at the bottom of the ice in spring, DIC profiles suggest that sea ice as a whole appears to be net heterotrophic. Still, sea ice absorbs CO2 from the atmosphere, as a result of physical processes. Some variability in the CO2 fluxes (both in magnitude and sign) could not be explained by variability in sea ice pCO2 but rather seemed driven by variability in atmospheric conditions and sea ice surface properties. For instance, in late spring, CO2 fluxes showed a diurnal variability (from CO2 degassing to uptake) related to atmospheric temperature variations. Large and episodic CO2 fluxes were systematically positively correlated with strong wind events, and large CO2 degassing was observed over thin, wet and salty snow cover. [less ▲]

Detailed reference viewed: 30 (14 ULg)
See detailPrésentation du programme de la conférence mondiale des humanités (Liège, août 2017)
Winand, Jean ULg

Conference (2016, February 11)

Detailed reference viewed: 31 (5 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 ▲]

Detailed reference viewed: 39 (1 ULg)
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 ▲]

Detailed reference viewed: 34 (3 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 ▲]

Detailed reference viewed: 37 (3 ULg)
See detailThe dynamics of inequality in Katanga, D.R.Congo. A conversation with Bourdieu
Rubbers, Benjamin ULg

Conference (2016, February 10)

Detailed reference viewed: 37 (0 ULg)
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 ▲]

Detailed reference viewed: 29 (7 ULg)
Full Text
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 ▲]

Detailed reference viewed: 122 (20 ULg)
Full Text
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 ▲]

Detailed reference viewed: 38 (9 ULg)
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 ▲]

Detailed reference viewed: 57 (0 ULg)
Full Text
See detailVolatile Organic Compounds:a new tool to control barley pathogens?
Kaddes, Amine ULg; Massart, Sébastien ULg; Fauconnier, Marie-Laure ULg et al

Poster (2016, February 05)

Barley is threatened by various edaphic fungal diseases. In particular, common root rot caused by Fusarium culmorum and Cochliobolus sativus is causing between 9 and 23 % of yield losses. Today, since ... [more ▼]

Barley is threatened by various edaphic fungal diseases. In particular, common root rot caused by Fusarium culmorum and Cochliobolus sativus is causing between 9 and 23 % of yield losses. Today, since most of the chemicals used for crop protection are being forbidden, there is a growing need of sustainable ways to control these diseases. A recent study has shown that barley roots infected by common root rot emitted 23 Volatile Organic Compounds (VOCs) that were not emitted by healthy barley roots. In addition it was shown that the blend of these molecules negatively impacted the growth of the two fungi. The main objective of the present study was to determine which VOCs of the blend were the most efficient in this growth reduction, and to understand their mode of action. We have found that methyl propionate (MP) and methyl acrylate (MA) reduced significantly the development of the two fungi in vitro. We also observed an inhibition of the spores’ germination in the presence of the two esters. The effect of the two molecules on infected barley seeds was also tested. We have observed that the plants coming from the seeds in contact with the VOCs did not develop symptoms of the disease. The antifungal and antibacterial activity of these VOCs on a wider range of fungal and bacterial diseases was also tested in vitro with success The two esters that we have studied could thus be an interesting starting point in the development of a sustainable way to control barley’s diseases. [less ▲]

Detailed reference viewed: 30 (5 ULg)
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 ▲]

Detailed reference viewed: 16 (1 ULg)
Full Text
See detailA glance on characterization of almond kernels from five varieties cultivated in eastern Morocco
Houmy, Nadia; Abid, M.; Addi, M. et al

Poster (2016, February 05)

The Green Morocco Plan is established for 2008-2020 to improve productivity in the agriculture sector and to plant more productive perennial tree crops such as almonds that are better suited for Morocco's ... [more ▼]

The Green Morocco Plan is established for 2008-2020 to improve productivity in the agriculture sector and to plant more productive perennial tree crops such as almonds that are better suited for Morocco's climate. Belgian Development Agency support almond orchards extension in eastern Morocco in purpose to achieve socio-economic improvement. This research is part of a local project (PROFAO) for development of almond in eastern Morocco. The present study evaluates some almond oil parameters fiber and protein content of five almond varieties (Beldi, Fournat, Ferraduel/Ferragnes and Marcona). The aim is to classify varieties on the basis of kernels content of oil and their richness of fibers. Significant variations were found among the five almond varieties examined. Almond oil content ranged from 48 % for Fournat to aproximativly 60 % for Marcona & Beldi. Fatty acids (FA) profiles are slightly different. Oleic acid ranged from 58 % for Marcona to 68 % for Beldi; linoleic acid ranged from 20 % for Beldi to 30 % for Marcona. Saturated FA (palmitic and stearic) were found at levels lesser than 10 %. In almond press cake, total protein content varied between 55 % for Beldi and 48 % for Fournat. The highest total fiber content was found for Fournat (25 %), however Beldi present the lowest rate (16 %). We conclude that Marcona & Beldi would be interesting varieties for almond oil; Fournat seems to be interesting for its richness in fiber. [less ▲]

Detailed reference viewed: 13 (1 ULg)
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 ▲]

Detailed reference viewed: 60 (10 ULg)
Full Text
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 ▲]

Detailed reference viewed: 48 (6 ULg)
Full Text
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 ▲]

Detailed reference viewed: 153 (4 ULg)
Full Text
See detailDysmorphology Quiz
BULK, Saskia ULg; PIERQUIN, Geneviève ULg

Conference (2016, February 04)

Detailed reference viewed: 15 (0 ULg)
Full Text
See detailBien soigner l'arthrose: un enjeu de société
Henrotin, Yves ULg

Conference (2016, February 04)

Detailed reference viewed: 42 (1 ULg)
Full Text
See detailA family with a split hand malformation
PIERQUIN, Geneviève ULg

Conference (2016, February 04)

Detailed reference viewed: 11 (1 ULg)
Full Text
See detailMicrodélétions et duplications 22q11.22 distales
PIERQUIN, Geneviève ULg; CABERG, Jean-Hubert ULg; BULK, Saskia ULg

Poster (2016, February 03)

Detailed reference viewed: 13 (4 ULg)
Full Text
See detailArtificial Intelligence and Energy
Cornélusse, Bertrand ULg; Fonteneau, Raphaël ULg

Conference (2016, February 02)

Detailed reference viewed: 97 (8 ULg)
Full Text
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 ▲]

Detailed reference viewed: 22 (1 ULg)
Full Text
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 ▲]

Detailed reference viewed: 88 (2 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 264 (24 ULg)
Full Text
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.

Detailed reference viewed: 36 (2 ULg)
Full Text
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)

Detailed reference viewed: 74 (3 ULg)
Full Text
Peer Reviewed
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)

Detailed reference viewed: 24 (7 ULg)
Peer Reviewed
See detailThe Pseudocommando and The Terrorist : Casuistic Comparison and Analysis
Leistedt, Samuel; Glowacz, Fabienne ULg

Conference (2016, February)

After attending this presentation, attendees will gain an understanding about specific types of mass murderers and the differences with terrorist offenders. This presentation will impact the forensic ... [more ▼]

After attending this presentation, attendees will gain an understanding about specific types of mass murderers and the differences with terrorist offenders. This presentation will impact the forensic science community by providing an in depth psychological and criminological description of mass murderers and terrorist profiles, including warning signs. Pseudocommandos and terrorists kill innocent people. They generally both kill during daytime, plan their offenses and generally expect to be killed during their attack. In a first part and through the study of criminal files, the authors propose a casuistic analysis of a belgian mass murderer. All the aspects of the psychopathology and criminology of this offender will be discussed, including the precise offending sequence. In a second part, the authors will compare the psychopathology of mass murderers and terrorist offenders. Despite their similarities, these two kind of offenders also have strong differences in their psychological and social characteristics.These differences are very important in terms of motivation, state of mind, psychopathology and finally for forensic evaluations. In conclusions, mass murderers and terrorists have common characteristics. Otherwise, their basic psychological and criminological functionings are different. These elements are important and should be considered in forensic evaluations. [less ▲]

Detailed reference viewed: 27 (2 ULg)
Full Text
Peer Reviewed
See detailThe materials lifecycle : A steering wheel for Europe's Raw Materials Academy.
Pirard, Eric ULg; Greberg, Jenny

in TMS 2016 Supplemental Proceedings (2016, February)

EIT Raw Materials is a major European initiative supported by more than 120 core and associate partners from industry, research and academia. Among the core missions of this network is the establishment ... [more ▼]

EIT Raw Materials is a major European initiative supported by more than 120 core and associate partners from industry, research and academia. Among the core missions of this network is the establishment of a Raw Materials RM Academy to educate T-shaped professionals that will contribute to the development of a sustainable and resource efficient Europe. Every T-shaped professional should combine an in depth knowledge of his own discipline with a sound understanding of the challenges of the full raw materials value chain and with a mindset for innovation and entrepreneurship. The main objective of the RM Academy is to connect all T-shaped professionals to help create the circular economy steering wheel. Therefore, the RM Academy has the following missions: - Label and support educational programs. - Promote a permanent offer of cross-disciplinary programmes, workshops and courses. - Train T-shaped professionals into T-shaped entrepreneurs. - Promote lifelong learning initiatives. - Stimulate wider society learning initiatives aiming at raising social and political awareness. - Closely collaborate with industry - Enable a high degree of mobility of students and professionals [less ▲]

Detailed reference viewed: 11 (2 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 51 (3 ULg)
Full Text
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 ▲]

Detailed reference viewed: 159 (34 ULg)
Peer Reviewed
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)

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailBibliothEP : a study evaluating the effectiveness of bibliotherapy for
Kempeneers, Philippe ULg; Andrianne, Robert ULg; Bauwens,, Sabrina et al

Poster (2016, February)

Objective. The BibliothEP study aimed to assess the efficacy of a bibliotherapy for premature ejaculation (PE) Design and method. The study was conducted in two phases. First, a sample of 120 participants ... [more ▼]

Objective. The BibliothEP study aimed to assess the efficacy of a bibliotherapy for premature ejaculation (PE) Design and method. The study was conducted in two phases. First, a sample of 120 participants suffering from PE read a concise cognitive behavioural self-help manual for PE (51 A5 pages including illustrations) and were compared after treatment to 66 waiting list controls. Second, 36 subjects received and read the self-help manual and were compared after treatment to 32 subjects having received the same manual plus a complementary brief guidance (45-90 minutes) from a coach not specialised in sex therapy, but who had been specifically trained to support the bibliotherapy intervention (by attending a 5-hour training module). The main outcome measures were selfdetermined latency time to ejaculation, feelings of control, sexual satisfaction, PErelated distress and subjective impression of improvement. Results. At 6-month posttreatment, all participants showed significant improvements as compared to waiting list condition. The improvements were maintained at 12 month. They were slightly greater in the case of complementary therapist support. Improvements were demonstrated for all forms of PE, but the intervention appeared to be slightly more effective when the problem was of moderate severity. In all cases, improvements in sexual functioning were accompanied by improvements in sexual cognitions. Conclusions. The cost-effectiveness of the self-help manual makes it a valuable first-line treatment for any form of PE. Moreover, the outcome of the bibliotherapy process might be increased by coaching from a health worker specifically trained to this aim. [less ▲]

Detailed reference viewed: 16 (1 ULg)
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 ▲]

Detailed reference viewed: 22 (9 ULg)
Full Text
See detailDiagnosis of sickle cell disease by innovative PCR without DNA extraction
DETEMMERMAN, Liselot; BOEMER, François ULg; OLIVIER, Sabine

Poster (2016, February)

Detailed reference viewed: 49 (4 ULg)
Full Text
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 ▲]

Detailed reference viewed: 55 (12 ULg)
Full Text
See detailTransfer of contaminants in the food chain up to marine mammals
Das, Krishna ULg

Conference (2016, February)

Detailed reference viewed: 17 (6 ULg)
Full Text
Peer Reviewed
See detailComputed Tomography and Magnetic Resonance Findings in Athletes at Risk for Sudden Cardiac Death
Ghekiere, Olivier; Nchimi Longang, Alain ULg; Bijnens, Eric et al

in Journal of the Belgian Society of Radiology (2016, February), 1

Detailed reference viewed: 24 (4 ULg)
Full Text
Peer Reviewed
See detailPredicting Review Helpfulness
Ittoo, Ashwin ULg

in Proceedings (2016, February)

Detailed reference viewed: 35 (2 ULg)
Peer Reviewed
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)

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
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)

Detailed reference viewed: 27 (1 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 34 (14 ULg)
Peer Reviewed
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)

Detailed reference viewed: 19 (0 ULg)