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See detailReprogramming of replication origin firing and checkpoint adaptation in adult T cell leukemia
Barez, Pierre-Yves ULg; Carpentier, Alexandre ULg; Willems, Luc ULg

Conference (2012, December 14)

Human T-lymphotropic virus type 1 (HTLV-1) is a retrovirus that infects about twenty million individuals worldwide. HTLV-1 is the causative agent of different diseases among which the most common are the ... [more ▼]

Human T-lymphotropic virus type 1 (HTLV-1) is a retrovirus that infects about twenty million individuals worldwide. HTLV-1 is the causative agent of different diseases among which the most common are the adult T-cell leukemia (ATL) and a neurodegenerative disorder called HAM/TSP (Human associated myelopathy/ Tropical spastic paraparesis). A key parameter of HTLV-1 pathogenesis is faster replication of provirus-carrying lymphocytes allowing clonal expansion of infected cell populations. The virally-encoded Tax oncoprotein plays an essential role in this process by interacting with DNA replication origins and accelerating S phase progression. By reprogramming the timing of origin firing, Tax also creates a replicative stress leading to DNA double strand breaks. This mechanism further triggers the DNA damage response (DDR) that induces cell cycle arrest and initiates either apoptosis or senescence. However, HTLV-1 infected cells have developed strategies to interfere with the DDR and are adapted to checkpoint control. These cells are thus able to proliferate despite occurrence of DNA damage. Based on these observations, we now propose a novel therapeutic approach based on the principle of synthetic lethality. [less ▲]

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See detailLe témoignage audiovisuel à l'ère des images digitales
Van Cauwenberge, Geneviève ULg

Conference (2012, December 14)

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See detailRéformes et innovations pédagogiques récentes dans le domaine de l'enseignement "traditionnel" des langues étrangères en Fédération Wallonie-Bruxelles
Simons, Germain ULg

Conference (2012, December 14)

Cette communication retrace d'abord la réforme de l'approche par compétences en langues modernes dans la Fédération Wallonie-Bruxelles. Ensuite, elle décrit et commente quelques innovations pédagogiques ... [more ▼]

Cette communication retrace d'abord la réforme de l'approche par compétences en langues modernes dans la Fédération Wallonie-Bruxelles. Ensuite, elle décrit et commente quelques innovations pédagogiques qui ont été développées dans ce domaine par le service de didactique des langues modernes de l'Université de Liège. [less ▲]

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See detailIntroduction
Henneau, Marie-Elisabeth ULg

Conference (2012, December 13)

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See detailEvaluation des fonctions visuo-perceptives et visuo-spatiales chez les enfants IMC
Schmetz, Emilie ULg; Detraux, Jean-Jacques ULg; Barisnikov, Koviljka

Conference (2012, December 13)

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See detailCritique de la Kulturkritik : le déclin d’O. Spengler
Zincq, Aurélien ULg

Conference (2012, December 12)

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See detailLes langues, encore et toujours !
Defays, Jean-Marc ULg

Conference (2012, December 12)

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See detailAteliers "L'activité un prisme multifacettes": L'institution, fin de la vie active ?
Adam, Stéphane ULg

Conference (2012, December 11)

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See detailQuel sens donner à l’activité et quel type d’activité pour nos aînés ?
Adam, Stéphane ULg

Conference (2012, December 11)

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See detailUne sociologie de la création sans créationnisme
Saint-Amand, Denis ULg

Conference (2012, December 11)

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See detailInnovative Surface Plasmon Resonance biosensing architectures
Desfours, Caroline; Piron, Pierre ULg; Habraken, Serge ULg et al

Conference (2012, December 11)

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological ... [more ▼]

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological molecules with a two-wavelength sensor and a SPR Coupler-Disperser spectroscopic sensor. [less ▲]

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See detailEffects of tributyltin (TBT) and triphenyltin (TPT) on the reproduction of the freshwater snail Lymnaea stagnalis
Lagadic, Laurent; Giusti, Arnaud ULg; Barsi, Alpar et al

Conference (2012, December 10)

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See detailPolarization Holography with liquid crystals polymers and applications
Piron, Pierre ULg; Blain, Pascal ULg; Habraken, Serge ULg et al

Conference (2012, December 10)

Liquid Crystals Polymers are birefringent molecules locally orientable. By recording the polarization pattern due to the overlap of differently polarized beams on LCP, space-variant retarders are realized ... [more ▼]

Liquid Crystals Polymers are birefringent molecules locally orientable. By recording the polarization pattern due to the overlap of differently polarized beams on LCP, space-variant retarders are realized. We present two applications polarization holography and coronagraphy [less ▲]

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See detailArthrose et hernie discale lombaire : bilan neurophysiologique
WANG, François-Charles ULg

Conference (2012, December 08)

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See detailDynamique du Karst dans le synclinal de Sprimont de 1898 à 2012
Peeters, Alexandre ULg; Ek, Camille ULg; Labarbe, Philippe et al

Conference (2012, December 08)

1. Une prospection dans le synclinal de Sprimont en 1898 C’est dans un synclinal calcaire de 12 km de long et 1,2 km de large que se situe Sprimont. Le synclinal, qui s’allonge d’est en ouest, est coupé ... [more ▼]

1. Une prospection dans le synclinal de Sprimont en 1898 C’est dans un synclinal calcaire de 12 km de long et 1,2 km de large que se situe Sprimont. Le synclinal, qui s’allonge d’est en ouest, est coupé en deux par la vallée de l’Ourthe. Le présent travail concerne la partie orientale de ce pli. Vers 1898, E. Van den Broeck, E. Martel et E. Rahir parcouraient ce synclinal et cartographiaient ses phénomènes karstiques (Van den Broeck, Martel & Rahir, 1910, vol. ll). 2. Révisions de la cartographie de 1971 à 2000 Raymond Michel entreprit en 1970-71 une révision de la cartographie et constata que beaucoup de pertes s’étaient déplacées, presque toutes vers l’amont, et sur une distance moyenne de 270 m ! Des levés ultérieurs par divers géographes confirmèrent l’extrème mobilité des pertes du vallon et furent consignées dans des cartographies de la CWEPSS et de la DGATLP. À ces mises à jour participèrent notamment D. Closson, A. Jaspar, V. Mousny, M. Salmon, J.-C. Schyns et A. Peeters. 3. Un nouveau levé en 2012 Une nouvelle révision fut entreprise en 2012 par deux équipes qui passèrent chacune trois journées pleines sur le terrain. La prospection s’appuya sur des photos aériennes et les phénomènes furent « géolocalisés » à l’aide d’un petit GPS de terrain (précision env. 10 m). Les pertes karstiques se déplacent au fil du temps, et avec parfois une spectaculaire rapidité. Par exemple, la perte du champ de maïs, au bord de la route N 678 (de Sprimont à Chanxhe) a été localisée en 1995 à 300 m en amont de sa localisation en 1971 ; en 1971, elle était déjà à 350 m en amont de sa situation en 1898. Et en 1999, un autre déplacement de la même perte avait provoqué un effondrement de la route N 678. 4. Conclusions Les phénomènes karstiques du synclinal de Sprimont présentent une dynamique fort active et, dans certains cas, dangereuse pour les travaux des hommes. Les déplacements des points d'enfouissement peuvent poser des problèmes de stabilité des bâtiments et des routes, canalisations, etc., mais aussi des problèmes de pollution. C'est pourquoi il est important de suivre attentivement l'évolution de l'hydrologie karstique. Ceci explique les décisions du Service public de Wallonie de mettre périodiquement à jour la cartographie des phénomènes, et de réglementer les implantations de constructions dans les zones karstiques. [less ▲]

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See detailNon-destructive measurement of volume magnetic properties of large, bulk superconductors
Vanderbemden, Philippe ULg; Dennis, T.; Shi, Y. H. et al

Conference (2012, December 07)

The development of large, single grain bulk superconductors by melt processing techniques has generated a need to characterize samples magnetically over large dimensions, exceeding typically 20 mm in ... [more ▼]

The development of large, single grain bulk superconductors by melt processing techniques has generated a need to characterize samples magnetically over large dimensions, exceeding typically 20 mm in diameter. The usual magnetic characterization gives relies on miniature Hall probe mapping and gives information about the field distribution above the sample surface. If volume properties are required (e.g. magnetization hysteresis loops), the sample needs to be cut in smaller pieces, since the DC magnetic characterization systems for measurements at cryogenic temperatures generally accommodate samples of relatively small size (typically < 5-10 mm diameter). In this work we describe how the hysteresis B(H) loops of large bulk superconducting samples exceeding 10 mm diameter can be determined using home-made sensing coils, either in liquid nitrogen or within the experimental chamber of a Quantum Design Physical Property Measurement System (PPMS). Magnetic properties are measured and compared to those given by several Hall probes attached to both faces of sample. The system is used successfully to measure the DC hysteresis loops of entire (RE)BCO bulk superconducting domains. A careful data acquisition and numerical integration of pick-up coil voltage enables the sweep rate of the magnetic field to be varied from 0.5 to 10 mT/s while keeping an excellent signal/noise ratio. A simple model based on demagnetizing field approach is used to emphasize how the hysteresis loops determined by this technique differ from “true” magnetization loops derived from classical magnetic moment measurements (e.g. SQUID or VSM). These differences are supported with numerical modelling of the average magnetization of the bulk sample using the Brandt method. [less ▲]

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See detailLe "basileion", les reines et Actium
Veymiers, Richard ULg

Conference (2012, December 07)

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See detailPiezocision-assisted orthodontic treatment in adult patient: A case report
CHARAVET, Carole ULg; LAMBERT, France ULg; LECLOUX, Geoffrey ULg et al

Conference (2012, December 07)

The duration of orthodontic treatments in adult patient remains a barrier for some patients. The recent scientific reports describing piezocision technique involving minimally invasive corticotomies, seem ... [more ▼]

The duration of orthodontic treatments in adult patient remains a barrier for some patients. The recent scientific reports describing piezocision technique involving minimally invasive corticotomies, seem to be of interest for these particular cases. The present communication describes the clinical case of a 20-year-old patient presenting a class I bilateral, an overcrowding of front areas with the superior canine in mesio-infraclusion and a deviated lower median line. An excellent multidisciplinary approach is mandatory for the planification of such cases. Under local anesthesia, the surgical technique involves vertical minimal incision around the teeth that need to be moved. Trough the minimal incisions, 5mm vertical alveolar osteotomies are performed using ultrasonic surgical device. No suture is necessary. The orthodontic activation is applied 1 week before the surgical procedure and the patient is recalled every 15 days to activate the orthodontic appliance. In this case self-ligating brackets were used to reduce the friction. Post-operative outcomes were painless for the patient and the complete orthodontic procedure took 7 months. The overall treatment appeared to be faster than a conventional orthodontic treatment. However, even if animal studies seem to confirm the clinical feeling described in this case report, further clinical studies including randomized controlled trials are needed to validate this treatment approach. [less ▲]

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See detailYBa2Cu3O7-x thick films on silver tubes for magnetic shielding applications
Namburi, Devendra Kumar ULg; Closset, Raphaël ULg; Fagnard, Jean-François ULg et al

Conference (2012, December 07)

YBa2Cu3O7-x (YBCO) thick films are investigated for magnetic shielding applications at low frequencies (< 1 kHz). This requires deposition of YBCO on curved substrates such as tubes, half-tubes or even ... [more ▼]

YBa2Cu3O7-x (YBCO) thick films are investigated for magnetic shielding applications at low frequencies (< 1 kHz). This requires deposition of YBCO on curved substrates such as tubes, half-tubes or even more complex shapes. Electrophoretic Deposition (EPD) is an efficient method to achieve this goal: positively-charged YBCO particles suspended in a non aqueous medium drift towards the substrate, used as negative electrode for the application of the electric field. A crucial point is then to optimize the heat treatment of the as-deposited layers in order to achieve suitable superconducting properties. In the present work, we have developed a new suspension formulation in butanol, using a suitable surfactant to stabilize the suspension of YBCO powder (grain size < 2 µm). The EPD parameters (deposition voltage, deposition time, number of layers,...) have been selected to provide uniform layers of YBCO on silver substrates of various shapes. In the proposed communication, we shall discuss in detail the optimization of the heat treatments to achieve densification, peritectic recombination and oxygenation of the YBCO thick films deposited on silver. Scanning electron microscopy coupled with energy dispersive analysis was extensively used to characterize the (i) density / porosity, (ii) presence of macro-cracks, (iii) thickness uniformity, (iv) secondary phase content. We shall then present the characterization of the superconducting properties of the best films. Typically, a uniformly coated 55μm-thick YBCO film on a curved Ag substrate shows a magnetic Tc onset at 92.2 K and sharp resistive transition (< 1K). [less ▲]

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See detailNorovirus: "new" enteropathogen agents
HUYNEN, Pascale ULg

Conference (2012, December 07)

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See detailLes trois premiers miliards d’années d’évolution de la vie
Javaux, Emmanuelle ULg

Conference (2012, December 07)

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See detailHow the debate on the protection of IDPs could inform the debate on the protection of environmental migrations
Gemenne, François ULg; Brücker, Pauline

Conference (2012, December 06)

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See detailUnderstanding the 3D morphology of the Jovian aurora using Juno-UVS observations: simulations and tomographic reconstruction
Bonfond, Bertrand ULg; Gladstone, Randy

Conference (2012, December 06)

The aurora at Jupiter is a spectacular signature of the many processes taking place in the Jovian magnetosphere, such as magnetic reconnection, large scale electric currents, moon-magnetosphere ... [more ▼]

The aurora at Jupiter is a spectacular signature of the many processes taking place in the Jovian magnetosphere, such as magnetic reconnection, large scale electric currents, moon-magnetosphere interactions, etc. As a consequence, this aurora is extremely complex and dynamic, powered by a variety of phenomena that we have only begun to unravel. The 3D morphology of the aurora can provide a way to untangle the different processes at play. As a polar orbiter, Juno will provide unprecedented global and close-up views of Jupiter’s auroral emissions. As it flies at low altitude over auroral curtains, spots and patches, it will provide views of these features from multiple points, allowing the retrieval of their 3D structure. The ultraviolet spectrograph on board Juno (Juno-UVS) is designed to observe auroral emissions in the 68 to 210 nm range. It is equipped with a scan mirror targeting up to +/-30 degrees off axis of the spacecraft rotation plane. We have built a planning tool to determine which auroral targets of interest, such as a satellite footprint for example, is observable by the instrument at any time during the mission. We have also built a simulation tool that allows us to generate realistic views of the Jovian aurora as observed by Juno-UVS. The purpose of this tool is to 1) fine-tune the selection algorithm to identify the most valuable data in the harsh radiation environment encountered around Jupiter, and 2) serve as a test bed for adapting tomographic algorithms to the Juno-UVS dataset. Tomographic reconstruction will allow estimation of the position and horizontal extent of the auroral regions of interest, as well as their vertical emission structure, which may be used to characterize the energy distribution of the precipitating particles responsible for the features. [less ▲]

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See detailCoronary heart disease: the MONICA-BELLUX Register
JeanJean, Michel; Krzesinski, Jean-Marie ULg; Wunsch, Guillaume

Conference (2012, December 05)

Background : Cardiovascular diseases contribute to 42% of overall mortality in the European Union. Over a third of deaths from CVD are from coronary heart disease and just over a quarter are from ... [more ▼]

Background : Cardiovascular diseases contribute to 42% of overall mortality in the European Union. Over a third of deaths from CVD are from coronary heart disease and just over a quarter are from cerebrovascular disease (stroke). Standardized death rates for heart disease have fallen dramatically in the last 25 years in Western Europe, both for men and for women. Multinational MONItoring of trends and determinants in CArdiovascular disease The MONICA Project : A major source of information on cardiovascular diseases established in the early 1980s under the auspices of WHO, to monitor trends in cardiovascular diseases and to relate these to risk factor changes over a ten year period. There were a total of 37 MONICA Collaborating Centres in 21 countries (including 29 populations in 16 European countries). The ten year data collection was completed in the late 1990s, though several Centres are still active today. Conclusions : CVD registers remain nevertheless an invaluable source for monitoring levels and trends in incidence and case fatality. Trends in incidence rates and in case fatality rates can significantly differ from one another. This situation requires better detection of individuals at risk. The intervention component of the BELLUX register is well-suited for this task. [less ▲]

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See detailDes controverses souterraines et silencieuses ? Les vers de terre (lombricidés), l’agronomie et l’agriculture : d’une « non-histoire » à leur délicate mobilisation dans la conception et l’évaluation de formes contemporaines d’agricultures « durables »
Dannevoye, Bastien ULg

Conference (2012, December 05)

This communication investigates the recent and marginal scientific and agronomic interest in earthworms (or "lumbricids"), which paradoxically accounts for the first animal biomass of the globe. After ... [more ▼]

This communication investigates the recent and marginal scientific and agronomic interest in earthworms (or "lumbricids"), which paradoxically accounts for the first animal biomass of the globe. After giving some historical points of reference about earthworms' quite recent scientific knowledge-building - thanks to soil scientists and biologists' works -, we present the manner in which the earthworms and their agricultural and ecological functions are valued today amongst groups of farmers linked to "conservation agriculture practices". This second part is built on sociological observation and interviews amongst those "conservation farmers", at work as well as communicating on their soil conservation practices (no-till, direct drilling, etc.). By doing that, we aim at describing how the earthworms, conceived as "intermediary objects" and "spokesperson" of the much larger soil biology, allows for those practicians to make strongly hold together production and environmental challenges in the agriculture they're developing... instead of opposing those stakes as it's usually the case. [less ▲]

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See detailLe partenariat CITET - CWBI : 10 années de collaboration scientifique et transfert technologique sur la valorisation énergétique des biomasses
Hiligsmann, Serge ULg; Sayahi, Lamia; Tangour, Douha et al

Conference (2012, December 05)

Les procédés de biométhanisation sont bien connus de par le monde et applicables à presque toute matière organique, même résiduaire. Ils possèdent des rendements et spécificités qui les rendent ... [more ▼]

Les procédés de biométhanisation sont bien connus de par le monde et applicables à presque toute matière organique, même résiduaire. Ils possèdent des rendements et spécificités qui les rendent intéressants pour des applications à petite comme à grande échelle. Du point de vue technologique, le concept de la biométhanisation, est relativement proche de celui des procédés agro-alimentaires. Ce processus de valorisation des déchets organiques est donc plus facilement intégrable dans un procédé agroalimentaire que les autres procédés de valorisation (gazification, pyrolyse, etc,..). La biométhanisation offre aussi l'avantage de pouvoir s'appliquer à des rejets liquides, semi-solides et solides. Par ailleurs, les procédés agro-alimentaires sont nombreux en Tunisie, leurs rejets peuvent contenir de la matière organique de relativement bonne qualité pour la biométhanisation. Toutefois, les conditions de mise en œuvre de la biométhanisation mais aussi de la cogénération en aval doivent être définies au cas par cas afin de conduire à une valorisation efficace des matières et une utilisation rentable du biogaz produit. Depuis plus de 10 ans, des axes de recherche et développement privilégiés ont été définis par les partenaires du CITET et du CWBI (Université de Liège, Belgique) en vue de promouvoir la valorisation des déchets organiques issus du secteur agro-alimentaire et des déchets ménagers. Les premiers travaux s’étaient focalisés sur l’étude de l’impact environnemental et la modélisation de la production de méthane au sein des centres d'enfouissement technique pour déchets ménagers. Forts de cette expérience et d’une compréhension mutuelle, concrétisées par plusieurs publications internationales, les deux centres ont pu aborder de réels transferts technologiques avec assistance technique et programmes de formation&training sur la biométhanisation des déchets organiques du secteur agro-alimentaire : technologie présentant des avantages importants sur le plan environnemental, économique et énergétique. Les travaux portent sur la caractérisation et la codigestion de matières organiques résiduaires liquides et/ou solides provenant des industries agroalimentaires, abattoirs, marchés, restaurants, épiceries, déchets des ménages, … Ils sont complétés par des stages de formation sur le dimensionnement des installations ; missions à l’étranger ; contacts avec des administrations de contrôle et/ou aide à l’investissement; visites et/ou suivis de bioréacteurs pilotes ou industriels. [less ▲]

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See detailDurabilité de lots de bois de peuplier modifié thermiquement
Jourez, Benoît ULg; Verheyen, Cécile

Conference (2012, December 05)

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See detailLiquidity Shocks and Global Imbalances
Artige, Lionel ULg

Conference (2012, December 04)

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See detailENMG et expertise
WANG, François-Charles ULg

Conference (2012, December 04)

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See detailSurvival analysis: finding relevant epistatic SNP pairs using Model- Based Multifactor Dimensionality Reduction
Van Lishout, François ULg; Vens, Céline; Urrea, Victor et al

Conference (2012, December 03)

Analyzing the combined effects of genes (and/or environmental factors) on the development of complex diseases is quite challenging, both from the statistical and computational perspective, even using a ... [more ▼]

Analyzing the combined effects of genes (and/or environmental factors) on the development of complex diseases is quite challenging, both from the statistical and computational perspective, even using a relatively small number of genetic and non-genetic exposures. Several data-mining methods have been proposed for interaction analysis, among them, the Multifactor Dimensionality Reduction Method (MDR). Model-Based Multifactor Dimensionality Reduction (MB-MDR), a relatively new dimensionality reduction technique, is able to unify the best of both nonparametric and parametric worlds, and has proven its utility in a variety of theoretical and practical settings. Until now, MB-MDR software has only accommodated traits that are measured on a binary or interval scale. Time-to-event data could therefore not be analyzed with the MB-MDR methodology. MB-MDR-3.0.0 overcomes this shortcoming of earlier versions. We show the added value of MB-MDR for censored traits by comparing the implemented strategies with more classical methods such as those based on a parametric regression paradigm. The simulation results are supplemented with an application to real-life data. [less ▲]

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See detailLa maladie périnéale chez l'enfant porteur d'une MICI
COIMBRA MARQUES, Carla ULg

Conference (2012, December 03)

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See detailAutomatic X-ray fluorescence scanning mobile system for 2D chemical analysis
Strivay, David ULg; Hocquet, François-Philippe; Dister, Hervé et al

Conference (2012, December)

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See detailMigrations congolaises (RDC) en Belgique et postcolonialismes
Demart, Sarah ULg

Conference (2012, December)

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See detailHigher-moment risk exposures in hedge funds
Lambert, Marie ULg; Hübner, Georges ULg; Papageorgiou, Nicolas

Conference (2012, December)

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See detailMartian thermospheric temperatures retrieved from CO2 + SPICAM dayglow measurements
Stiepen, Arnaud ULg; Gérard, Jean-Claude ULg; Bougher, S. et al

Conference (2012, December)

A large dataset of dayside grazing limb CO2+ observations performed by the SPICAM (Spectroscopy for Investigation of Characteristics of the Atmosphere of Mars) instrument on board Mars Express is analyzed ... [more ▼]

A large dataset of dayside grazing limb CO2+ observations performed by the SPICAM (Spectroscopy for Investigation of Characteristics of the Atmosphere of Mars) instrument on board Mars Express is analyzed to retrieve Martian thermospheric temperature, as well as its variation with solar activity, season and latitude. The method permits to retrieve the temperature from the scale height of the CO2+ emission. We also present puzzling features such as limb profiles exhibiting multiple peaks and their characteristics. We furthermore study the behavior of the main emission peak of the CO2+ vertical emission profiles. The CO2+ emission at 289 nm arises from the relaxation of the CO2+* molecule in the B2Σ+ state to the X2Π state. CO2+* molecules are mainly produced in the Martian dayside through photoionisation and photoelectron impact. The CO2+ emission exhibits features that constrain the temperature and density vertical profiles of CO2. Comparisons of retrieved temperatures are made with corresponding simulations from the coupled MGCM-MTGCM. We also use a Monte-Carlo code to model the observed intensity limb profiles. [less ▲]

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See detailLa bone sialoproteine: un facteur clé dans la pathogénie de l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Conference (2012, December)

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See detailThe social dimension of animal health surveillance system: an interdisciplinary approach of social pressure in the process of disease reporting in Northern Thailand.
Binot, Aurélie; Valeix, Sophie; Kovitvadhi, Attawit et al

Conference (2012, December)

In the framework of the CIRAD REVASIA research program, aimed at the improvement of methods for the evaluation of animal health surveillance systems, a interdisciplinary approach has been designed for ... [more ▼]

In the framework of the CIRAD REVASIA research program, aimed at the improvement of methods for the evaluation of animal health surveillance systems, a interdisciplinary approach has been designed for addressing surveillance‘s social factors at local level. To that purpose, methodological inputs from epidemiology, economics and anthropology have been merged together in order to provide an innovative methodological pathway for the assessment and quantification of these factors at community level. Regarding the onset of the desired interdisciplinary approach, the first step was to bring the researchers into several brainstorming sessions aimed at defining a shared scientific and operational objective for this study. It was decided to settle two field sites in two different political, economical and social contexts: one in Vietnam and one in Thailand. Then, the next step was to bring all the concerned researchers into a common workshop dealing with participatory approaches applied to epidemiology. One of the main outcomes was to allow for the handling by the investigators of basic participatory investigation and visualization tools (mapping, diagrams, proportional piling, etc.) and qualitative data gathering. Then, the two field inquiry’s protocols were designed on the economical process at play in the field of livestock and animal health and the social and socio-­‐political dynamics at the community level. This communication will focus on the Thailand study, showing how an anthropology-­‐based study of the social, economical and political process in the community can highlight behavior rules in the context of animal diseases reporting. Indeed, the decision-­‐making process for reporting or not reporting a disease has been considered beyond the individual, as the result of a body of community influences referring to social factors. Thus, we have gone through a better understanding of (1) the community’s functioning patterns, (2) power relationships at play and social stakeholders’ networks and interactions (economical stakes, land tenure issues, political control etc.). In parallel, we showed some trends for health management practices and knowledge. The outputs of this study were an analysis of the social pressure that the stakeholders are subjected to in the framework of animal health management, a better understanding of the animal health information spreading scheme, and a typology of social stakeholders regarding surveillance. The research process, even if focusing on social and anthropological dynamics at play was interdisciplinary from the very beginning, merging together qualitative participatory investigation methods from sociology and economics, modeling and computer sciences, and epidemiology. Thus, pathways of individual motivation for reporting, based on social types, have been provided in order to highlight behavior rules associated to animal health surveillance systems. [less ▲]

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See detailStainless steel in structures in view of sustainability
Rossi, Barbara ULg

Conference (2012, December)

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See detailAssociation entre l'hypertrophie du chondrocyte et l'angiogenèse du cartilage dans l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Conference (2012, December)

Detailed reference viewed: 70 (6 ULg)
See detailComplexité k-abélienne du mot de Thue-Morse
Vandomme, Elise ULg

Conference (2012, December)

Soit k un entier. Deux mots u et v de même longueur sont équivalents k-abéliennement s'ils ont le même préfixe (resp. suffixe) de longueur k-1 et si, pour tous les mots x de longueur k, les nombres d ... [more ▼]

Soit k un entier. Deux mots u et v de même longueur sont équivalents k-abéliennement s'ils ont le même préfixe (resp. suffixe) de longueur k-1 et si, pour tous les mots x de longueur k, les nombres d'occurrences de x dans et dans v coïncident. Cette notion a suscité récemment beaucoup d'intérêt (consulter par exemple les travaux de Karhumäki et al.) La complexité k-abélienne d'un mot infini w associe à un entier n le nombre de classes d'équivalence k-abélienne partitionnant l'ensemble des facteurs de longueur n de w. Le mot de Thue-Morse est une suite 2-automatique célèbre et très étudiée. Il est triviallement abéliennement périodique et sa complexité (1-)abélienne ne prend que deux valeurs. Le but de cet exposé est de calculer la complexité 2-abélienne du mot de Thue-Morse à l'aide de matrices. En particulier, nous montrerons que cette complexité n'est pas bornée. De plus, nous conjecturons que cette complexité est 2-regulière au sens d'Allouche et Shallit. [less ▲]

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See detailLight as a modulator of cognitive brain functions
Vandewalle, Gilles ULg

Conference (2012, December)

Detailed reference viewed: 22 (2 ULg)
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See detailParticipatory approaches for evaluating surveillance systems: insights from a training- related study from Vietnam
Antoine-Moussiaux, Nicolas ULg; Vu, M.Q. Giao; Delabouglise, Alexis et al

Conference (2012, December)

Detailed reference viewed: 32 (3 ULg)
See detailSeasonal change of Lymnaeid snails intermediate host of Fasciola gigantica in North and Central Vietnam
Bui Thi, Dung ULg; Dang Tat, The; Pham Ngoc, Doanh et al

Conference (2012, December)

Objective: The present study was undertaken to investigate the population dynamics of the intermediate hosts of Fasciola gigantica and the levels of infection in the snails. This would allow identifying ... [more ▼]

Objective: The present study was undertaken to investigate the population dynamics of the intermediate hosts of Fasciola gigantica and the levels of infection in the snails. This would allow identifying the most important transmission periods and suggesting optimal snail control for the area. Methods: Lymnaeid snails were monthly collected by hand picking in Ha Noi (Northern Vietnam) during the period from March 2010 to December 2011 and in Binh Dinh province (Central Vietnam) during the period May and September 2012. Collected snails from different sites were identified based on morphology and the partial 16S rDNA sequence and ITS-2 sequence. Snails were examined for the presence of Fasciola larval by the crushing method and confirmation by multiplex PCR analyses with PCR primer for Fasciola gigantica cathepsin L in parallel with the snail rDNA species specific primer. Result: The density of Lymnaeid populations underwent great changes in relation to the geographical locations and seasons. In Central Vietnam, the Lymnaeid populations reached the peak in the dry/rainy season (May) and decreased sharply in rainy/dry season (September). In contrast, in Hanoi, it reached the peaks in 2 periods (February to April and August to November) of rice cultivation or early stage of growing of rice, and greatly deceased when the rice becomes fully developed. Transmission of fascioliasis in Ha Noi were high when rice cultivation is performed, while the permanent transmission can takes place through the year in Binh Dinh with peak transmission during the dry season. [less ▲]

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See detailTHREE-DIMENSIONAL RECONSTRUCTION OF LIQUID PHASES CONFINED IN DISORDERED POROUS MEDIA: AN IN SITU SYNCHROTRON SAS ANALYSIS
Gommes, Cédric ULg; Hermida Merino, Daniel

Conference (2012, December)

We use Synchrotron Small-Angle X-ray Scattering to investigate temperature-induced morphological changes in binary hexane/nitrobenzene solutions confined in the pores of disordered mesoporous solids. The ... [more ▼]

We use Synchrotron Small-Angle X-ray Scattering to investigate temperature-induced morphological changes in binary hexane/nitrobenzene solutions confined in the pores of disordered mesoporous solids. The scattering data is analyzed with a plurigaussian model, which enables us to reconstruct the 3D morphology of the phases with a nanometer resolution. The reconstructions bring to light wetting transitions whereby the morphology of the nitrobenzene passes from a nanometer-thin layer that uniformly covers the solid surface to plugs that locally occlude the pore space. Our analysis enables us to quantitatively analyze the SAS data in terms of changing interface areas and wetting angles. The present contribution offers unprecedented insight into nanometer-scale wetting transitions. It also presents a novel SAS data analysis methodology that is applicable to a host of experimental situations involving disordered mesoporous materials. [less ▲]

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See detailComoment risk and stock return
Lambert, Marie ULg; Hübner, Georges ULg

Conference (2012, December)

Detailed reference viewed: 26 (4 ULg)
Peer Reviewed
See detailHileôs tôi phorounti. Sérapis sur les gemmes et les bijoux antiques
Veymiers, Richard ULg

Conference (2012, November 30)

Detailed reference viewed: 33 (0 ULg)
Peer Reviewed
See detailA dictionary, please ! The Leipzig call.
Winand, Jean ULg

Conference (2012, November 30)

Detailed reference viewed: 30 (7 ULg)
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See detailLa famine Ruzagayura au Rwanda (1943-1944) et ses effets dans les campagnes
Singiza, Dantès ULg

Conference (2012, November 30)

La famine Ruzagayura, survenue au Rwanda entre 1943 et 1944, s’inscrit dans une longue série de famines ayant frappé le pays depuis la période précoloniale. La présente communication revient sur ses ... [more ▼]

La famine Ruzagayura, survenue au Rwanda entre 1943 et 1944, s’inscrit dans une longue série de famines ayant frappé le pays depuis la période précoloniale. La présente communication revient sur ses causes, son domaine d’extension, sa durée, son ampleur et ses conséquences. De plus, elle aborde les mesures prises par l’administration mandataire belge au moment de cette catastrophe. Ces mesures impliquent, sur le long terme, aussi bien la plantation du manioc et des patates douces que la construction et l’aménagement des greniers collectifs sur chaque colline du pays. Elles incluent également des mesures anti-érosives comme le reboisement et l’implantation des haies aux abords des champs. Elles comprennent enfin la culture et l’exploitation des marais et des fonds de vallées. De ce fait, cette communication tentera de répondre aux différentes questions liées à cette thématique : de quelle manière ces mesures ont-elles modifié l’aspect du monde rural ? Y a-t-il eu un impact sur l’environnement et le bien-être de la population rwandaise ? Quelle a été la réaction de cette population ? [less ▲]

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See detailLa recherche scientifique au bénéfice des politiques publiques : applications dans le domaine de l'eau
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Grard, Aline ULg

Conference (2012, November 30)

Les directives européennes, et en particulier la Directive Cadre sur l’Eau 2000/60/CE et ses directives filles, sont de nouveaux « Drivers » de la recherche scientifique, infléchissant les axes ... [more ▼]

Les directives européennes, et en particulier la Directive Cadre sur l’Eau 2000/60/CE et ses directives filles, sont de nouveaux « Drivers » de la recherche scientifique, infléchissant les axes prioritaires de la recherche à l'échelle Européenne, Nationale et Régionale (Wallonie). [less ▲]

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See detailLa photosynthèse: aujourd'hui, hier et demain
Franck, Fabrice ULg

Conference (2012, November 30)

Detailed reference viewed: 39 (14 ULg)
See detailDebt, Pension and Demographics
Artige, Lionel ULg; Cavenaile, Laurent; Pestieau, Pierre ULg

Conference (2012, November 29)

Detailed reference viewed: 26 (6 ULg)
See detailLateral tarsal strip : entropion and ectropion treatment specificities
XHAUFLAIRE, Gaël ULg

Conference (2012, November 28)

Description of the lateral tarsal strip technique. Technical specificities relative to the treatment of entropion and ectropion. Technical specificities relative to the treatment of the superior eyelid ... [more ▼]

Description of the lateral tarsal strip technique. Technical specificities relative to the treatment of entropion and ectropion. Technical specificities relative to the treatment of the superior eyelid Floppy Eyelid Syndrom. Video presentation. [less ▲]

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See detailClassifying pairs with trees for biological network inference
Schrynemackers, Marie ULg

Conference (2012, November 28)

Detailed reference viewed: 16 (7 ULg)
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See detailSensations corporelles et contenus représentationnels
Dewalque, Arnaud ULg

Conference (2012, November 28)

Cet exposé porte sur un problème qui a été très débattu ces dix dernières années dans la philosophie de l’esprit. La question litigieuse est de savoir s’il est possible de rendre compte de façon ... [more ▼]

Cet exposé porte sur un problème qui a été très débattu ces dix dernières années dans la philosophie de l’esprit. La question litigieuse est de savoir s’il est possible de rendre compte de façon intégralement intentionnelle d’un certain groupe de sensations corporelles, dont l’exemple paradigmatique est la douleur. J’aborde cette question sous un angle descriptif au sens de Brentano, donc en mettant de côté tout ce qui relève des prises de positions explicatives et métaphysiques (physicalisme, naturalisme, etc.). De ce point de vue, l'enjeu est de savoir dans quelle classe d’états mentaux l’expérience de la douleur peut être rangée. Je dresse d'abord un état de la question dans la littérature actuelle, puis j'examine les arguments de Carl Stumpf d'après lequel les états comme le plaisir et la douleur sont des "sensations affectives" (Gefühlsempfindungen) et, à ce titre, forment une espèce du genre des représentations sensorielles - donc doivent être rangées dans la première classe de phénomènes psychiques distinguée par Brentano: celle des représentations (et non dans la troisième, celle des "affects" ou des "émotions"). [less ▲]

Detailed reference viewed: 71 (3 ULg)
See detailPhénomènes physiques. Brentano et le partage entre corps et esprit
Gyemant, Maria ULg

Conference (2012, November 28)

Detailed reference viewed: 16 (0 ULg)
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See detailL'activisme des investisseurs institutionnels, l'asymétrie d'informations et la liquidité du marché
Sougné, Danielle ULg; Ajina, Aymen ULg

Conference (2012, November 28)

The purpose of this study is to examine the effect of institutional investors’ ownership and their activism on informational asymmetry and stock market liquidity using a sample of 162 French-listed ... [more ▼]

The purpose of this study is to examine the effect of institutional investors’ ownership and their activism on informational asymmetry and stock market liquidity using a sample of 162 French-listed companies over a 3-year period (2007-2009). The findings show that the proportion of institutional investors, and particularly, pension funds positively influence stock market liquidity, which confirms the signalling and trading hypotheses. These investors perform important trades among their portfolios, leading to favourable effects on the market liquidity. These shareholders’ real involvement in companies is considered as a governance mechanism that tends to contribute to a better liquidity. [less ▲]

Detailed reference viewed: 132 (26 ULg)
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See detailDynamics of the main/rotation aurora
Bonfond, Bertrand ULg

Conference (2012, November 27)

Detailed reference viewed: 30 (5 ULg)
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See detailOptimum weather forecasting for DLR : requirements
Nguyen, Huu-Minh ULg; Schell, Peter

Conference (2012, November 27)

The goal of the meeting was 1) to identify the research topics within weather forecasting (days) that need to be addressed to allow for an effective & reliable forecast of DLR and 2) to deter-mine the DLR ... [more ▼]

The goal of the meeting was 1) to identify the research topics within weather forecasting (days) that need to be addressed to allow for an effective & reliable forecast of DLR and 2) to deter-mine the DLR potential based on historical weather data, for planning DLR installations. Developing methods and tools to be able to determine the potential for DLR for specific loca-tions based on historical data and weather models would allow TSO/DSO to make much better decisions on where they could/should implement DLR to solve congestion and curtailment issues in their network. Increasing line electrical capacity on borders can mitigate market pres-sure and lower average generation prices thus increasing welfare. The aim of the WG3-DLR is to come up with a project proposal for these 2 topics that in-cludes: • A description of the obtainable results • An estimation of the R&D tasks required to attain these results • The timing and budget these tasks require Based on these project proposals and depending on their exact content, the proposals are in-tended to be used to either • Convince Transmission/Distribution Network Operators to fund the research for their own immediate needs, • Submit a proposal for EU funding of this research as follow-up to the currently running FP7 Twenties project, • Prepare a potential contribution to Cigré which should be presented at the Cigré B2 meeting due to take place in September in Auckland, NZ. [less ▲]

Detailed reference viewed: 54 (13 ULg)
See detailSoutien à la parentalité, support de résiliences
Glowacz, Fabienne ULg

Conference (2012, November 27)

Detailed reference viewed: 39 (4 ULg)
See detailEtat des lieux du patrimoine bâti wallon et enjeux de sa rénovation
Reiter, Sigrid ULg

Conference (2012, November 27)

Detailed reference viewed: 44 (14 ULg)
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See detailA brief review of auroral emissions of the outer planets
Grodent, Denis ULg

Conference (2012, November 26)

Detailed reference viewed: 14 (5 ULg)
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See detailENMG of Brachial Plexus
WANG, François-Charles ULg

Conference (2012, November 24)

Detailed reference viewed: 33 (1 ULg)
See detailCollecting strategies to create the AIP bank
Munaut, Carine ULg

Conference (2012, November 23)

Detailed reference viewed: 15 (0 ULg)
See detailIntervention dans le cadre du Workshop Studien zur Struktur des Bewusstseins
Gyemant, Maria ULg

Conference (2012, November 23)

Detailed reference viewed: 12 (0 ULg)
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See detailPromouvoir le BIEN-ÊTRE et la réussite scolaire
Vandoorne, Chantal ULg

Conference (2012, November 22)

Detailed reference viewed: 95 (17 ULg)
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See detailAnalyse des pratiques professionnelles : levier pour réduire les écarts?
Dury, Cécile ULg

Conference (2012, November 22)

OBJECTIFS : Développer les concepts du travail prescrit / travail réel Clarifier la problématique actuelle: normes, contraintes propres à l¿organisation du travail, la transgression des règles dans les ... [more ▼]

OBJECTIFS : Développer les concepts du travail prescrit / travail réel Clarifier la problématique actuelle: normes, contraintes propres à l¿organisation du travail, la transgression des règles dans les organisations, incidences psychosociologiques Comprendre les origines des écarts entre le travail prescrit et le travail réel en milieu hospitalier Identifier les risques pour les professionnels de santé et les incidences sur la qualité des soins Développer une réflexion autour des problématiques organisationnelles impactant la qualité des soins. Interroger le rôle du management dans la gestion des risques et l'évaluation des pratiques professionnelles Permettre le partage d'expérience sur l'analyse des pratiques professionnelles comme levier pour réduire les écarts. PUBLIC : Les professionnels de santé Titre de l'intervention : Analyse des pratiques professionnelles : levier pour réduire les écarts ? Cette présentation propose un partage d'expérience sur l'accompagnement de professionnels de santé dans l'analyse de leur pratique pour développer une "posture réflexive". Cette analyse amène à la compréhension du travail réel et favorise des prises de conscience nécessaire à l'évolution des pratiques. Dans un premier temps le cadre conceptuel sera développé et plus particulièrement le concept de "praticien réflexif" (travaux de Schön et Argyris, 1983). Chaque situation de travail est singulière et pour la traiter efficacement le professionnel de santé mobilise, sélectionne et coordonne un ensemble de ressources (Jonnaert P., 2009). Si le travail prescrit est standardisé, dans une situation problème identique, chaque professionnel va l'interpréter à partir de ses représentations, ses expériences antérieures, ses ressources, ses anticipations et agir d'une manière très personnelle, avec son "style". Réfléchir et analyser la pratique amène à mettre en mots, à faire exister le processus de l'action, à rendre explicite l'implicite de l'action. C'est rendre visible le "traitement" de l'action pour prendre du recul et faire émerger les apprentissages et donc amener à réduire les écarts entre le travail réel et prescrit. Dans un second temps un exercice collectif d'analyse de pratique professionnelle sera réalisé à partir d'une vidéo présentant un jeu de rôle avec pour thème un entretien d'évaluation d'une étudiante réalisé par une professionnelle de santé. Un questionnement amènera les participants à prendre du recul, s'engager dans une démarche réflexive sur la pratique visionnée. Entre le prescrit, qui stipule d'amener les étudiants à devenir des "praticiens réflexifs" et le réel des activités d'accompagnement au développement de cette posture, nous verrons comment cet exercice d'analyse de la pratique peut amener le professionnel en santé à des prises de conscience et donc à des changements de pratique. Différents outils d'analyse de la pratique seront proposés : l'entretien d'explicitation (Vermersch P., 1994), le schéma de quête (analyse structurale: Bourgeois, Piret et Nizet, 1996), les modèles d'apprentissages (Stordeur J, 1996), les stratégies réflexives-interactives (Lafortune 2012), etc. Nous terminerons par un temps d'échange et de mise en perspective autour de la question posée: le développement d'une posture réflexive peut-il être un levier pour réduire les écarts entre travail prescrit et travail réel à l'hôpital? Oui à certaines conditions car "travailler sur son "habitus" n'est pas confortable. C'est accepter d'être confronté à la part de soi qu'on connaît le moins et qu'on aime guère lorsqu'elle émerge"(Perrenoud P.1996). Cette démarche doit donc être soutenue, accompagnée et nous emprunterons quelques idées à Guy Le Boterf (2008) en guise de clôture dont celle du "management jardinier". [less ▲]

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See detailUsefulness of electrophysiology in muscle channelopathies
BETHLEN, Sarah ULg; NEUPREZ, Audrey ULg; Maystadt, Isabelle et al

Conference (2012, November 22)

Detailed reference viewed: 68 (8 ULg)
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See detailEtudier dans une/d’autre(s) langue(s): entre obstacles et opportunités
Defays, Jean-Marc ULg

Conference (2012, November 22)

Detailed reference viewed: 53 (2 ULg)
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See detailEco-efficacité et éco-efficience: un nouveau paradigme en construction(s)
Courard, Luc ULg

Conference (2012, November 20)

Detailed reference viewed: 103 (7 ULg)
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See detailA New State of Turbulence: Elasto-Inertial Turbulence
Dubief, Yves; Samanta, Devranjan; Holzner, Markus et al

Conference (2012, November 20)

The elasticity of polymer solutions is found to generate a new state of turbulence, elasto-inertial turbulence (EIT), characterized by an interplay between elastic and flow instabilities. Experiments and ... [more ▼]

The elasticity of polymer solutions is found to generate a new state of turbulence, elasto-inertial turbulence (EIT), characterized by an interplay between elastic and flow instabilities. Experiments and direct numerical simulations (DNS) in pipe and channel flows demonstrate the emergence of EIT at Reynolds numbers much lower than the critical Reynolds number for transition to turbulence in Newtonian flows. EIT causes the friction factor to deviate from the laminar solution and subsequently transition to the maximum drag reduction asymptote around Re=1800. EIT is a self-sustained mechanism that arises from the interactions between fluctuations of extensional viscosity, velocity and pressure. The polymer solution elasticity controls the growth of flow instability, resulting in transitional-like flows at high Reynolds numbers. The existence of EIT is not limited to pipe, channel or boundary layer flows, and evidence of EIT will be discussed in other flows, including natural convection using DNS. [less ▲]

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See detailSelf et mémoire dans la maladie d'Alzheimer
Collette, Fabienne ULg

Conference (2012, November 20)

Detailed reference viewed: 38 (9 ULg)
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See detailMechanics and characteristics of transition to turbulence in elasto-inertial turbulence
Terrapon, Vincent ULg; Dubief, Yves; Soria, Julio

Conference (2012, November 20)

Numerical experiments of transition in elasto-inertial turbulent channel flows are used to highlight the mechanisms of transition and characterize the MDR regime. Specifically, the pressure kernel from ... [more ▼]

Numerical experiments of transition in elasto-inertial turbulent channel flows are used to highlight the mechanisms of transition and characterize the MDR regime. Specifically, the pressure kernel from the generalized pressure Poisson equation is used to demonstrate the role of elastic instabilities in inducing and sustaining a turbulent-like flow. Additionally, dynamic mode decomposition is applied to statistically steady viscoelastic flows at different Reynolds number to identify the relative contributions of elastic and inertial instabilities. It is shown that elastic instabilities can be triggered through long-range interactions from disturbances in the free-stream, similarly to by-pass transition, and are then sufficient to self-sustain. When the Reynolds number is increased, the relative contribution of inertial instabilities becomes more important, and the flow demonstrates features that are characteristic to Newtonian turbulent flows (e.g., streaks, quasi-streamwise vortices), although at lower intensity. [less ▲]

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See detailUsage de l’agriculture dans le social : perspective comparative Japon - Europe
Muramatsu, Kenjiro ULg

Conference (2012, November 20)

Detailed reference viewed: 107 (2 ULg)
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See detailClostridium difficile: méthodes de diagnostic microbiologique.
HUYNEN, Pascale ULg

Conference (2012, November 20)

Detailed reference viewed: 24 (3 ULg)