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See detailUnveil the Mechanism of Action of Berenil, a DNA Binding Drug, on Trypanosoma cruzi
Zuma, Aline Araujo; Cavalcanti, Danielle Pereira; Thiry, Marc ULg et al

Poster (2014, September)

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See detailJupiter's equatorward auroral features : Possible signature of magnetospheric injections
Dumont, Maïté ULg; Grodent, Denis ULg; Radioti, Aikaterini ULg et al

Conference (2014, September)

We investigate the characteristics of ultraviolet auroral features located equatorward of the main emission appearing in the Hubble Space Telescope (HST) images obtained in 2000-2007. Several properties ... [more ▼]

We investigate the characteristics of ultraviolet auroral features located equatorward of the main emission appearing in the Hubble Space Telescope (HST) images obtained in 2000-2007. Several properties of the auroral emissions are analyzed. The mapped radial position and System III longitude of the observed auroral features are in good agreement with those of the injections observed in the equatorial plane by Galileo. Finally, we discuss the processes causing auroral signatures of injections. This comparative study demonstrates that the structures under study are most probably related to magnetospheric injections and sheds light to the mechanism involved in the magnetosphere-ionosphere dynamics. [less ▲]

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See detailBash Tapa and its Environment. Third Millennium Pottery from the First Excavation Campaign.
Mas, Juliette ULg

Conference (2014, September)

Bash Tapa is a circa 8 ha settlement, located 35 km South of Erbil, in Iraqi Kurdistan. Its exploration was began in September 2013 by a french archaeological mission, led by L. Marti (CNRS, Paris). The ... [more ▼]

Bash Tapa is a circa 8 ha settlement, located 35 km South of Erbil, in Iraqi Kurdistan. Its exploration was began in September 2013 by a french archaeological mission, led by L. Marti (CNRS, Paris). The stratigraphical step trench excavated on the southern slope of the tell revealed six phases of occupation dating to the 3rd millennium BC, from the Ninevite 5 to the Early Dynastic III periods (ARCANE ETG 1 – 5). A first evaluation of the pottery material recovered in this operation revealed that there are different traditions represented at the site. In fact, while the material dated from the beginning of the Early Bronze Age is clearly related to the Northern tradition, the most recent 3rd millennium levels identified so far have provided us with pottery which could be connected to Central Mesopotamia, and more specifically to the Diyala region. This paper will give a first overview of 3rd millennium pottery from the two first campaigns of excavation at Bash Tapa, its links with the other regions of Near East and its significance for chronology. [less ▲]

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See detailBioaccumulation of polybrominated diphenyl ethers (PBDEs) in Gammarus pulex: Relative importance of different exposure routes and multipathway modeling
Lebrun, Jérémie; Leroy, Delphine; Giusti, Arnaud ULg et al

in Aquatic Toxicology (2014), 154

Characterizing the exposure routes of an organism and its ability to regulate accumulated contaminants is a crucial step toward developing a biomonitor. To date, very little data are available on the ... [more ▼]

Characterizing the exposure routes of an organism and its ability to regulate accumulated contaminants is a crucial step toward developing a biomonitor. To date, very little data are available on the bioaccumulation kinetics of PBDEs in freshwater biota. This study aims at investigating the potential use of a litter-degrader widely distributed in European freshwaters, Gammarus pulex, as an indicator of exposure to PBDEs. In aquatic microcosms, gammarids were exposed to a mixture of brominated congeners (BDE-28, 47, 66, 85, 99, 100, 153, 154 and 183) to assess their ability to bioconcentrate PBDEs. Results show that all tested congeners are highly internalized by G. pulex and uptake rates of PBDEs are closely related to their partition coefficients (Kow). The determination of the elimination rate of BDE-47, the congener most readily accumulated by gammarids, indicated that metabolism and excretion of this congener are low in G. pulex, which argues in favor of its use as a quantitative biomonitor. Finally, bioaccumulation experiments were performed using contaminated leaves to determine the relative importance of dietary uptake in the contamination of gammarids. Even though water is the preeminent exposure route, a significant uptake of BDE-47 through food was observed (27%). We propose a biodynamic model that takes into account both exposure routes to describe BDE-47 bioaccumulation. This study supports the use of this ubiquitous amphipod as an early warning monitor of the bioavailable contamination of freshwaters by PBDEs. [less ▲]

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See detailDiagnostic des viroses et séquençage haut-débit : vers un changement de paradigme ?
Massart, Sébastien ULg; Olmos, Antonio; Jijakli, Haissam ULg et al

in Virologie (2014), 18(V), 247-250

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See detailResidue and microwear analyses of the stone artefacts from Schöningen
Rots, Veerle ULg; Hardy, Bruce

Conference (2014, September)

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See detailVIRTIS-M-IR nadir and limb observations: variability of the O2(a1∆) nightglow spots
Soret, Lauriane ULg; Gérard, Jean-Claude ULg; Piccioni, Giuseppe et al

in EPSC2014, Vol. 9 (2014, September)

Individual nadir and limb VIRTIS-M-IR at 1.27 μm show that the O2(a1∆) nightglow emission is highly variable. This variability is observed spatially, but also in term of intensity and altitude of the ... [more ▼]

Individual nadir and limb VIRTIS-M-IR at 1.27 μm show that the O2(a1∆) nightglow emission is highly variable. This variability is observed spatially, but also in term of intensity and altitude of the emitting layer over time. Apparent wind velocities have been deduced from the nadir observations, as well as the e-folding times. Limb observations show that an increase of the emitting layer altitude is observed near the cold collar region. [less ▲]

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See detailDo the counting methods distort our perception of bivalve diversity through time?
Ros-Franch, Sonia; Cascales - Miñana, Borja ULg; Martínez-Pérez, Carlos

Poster (2014, September)

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See detailDendrochronological research on beech in Belgium: the case of 12th graves from the Nivelles Abbey (Hainaut) and future archaeological prospects
Fraiture, Pascale; Weitz, Armelle ULg; Van Daalen

in Eurodendro 2014 (2014, September)

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See detailBiointerface multiparametric investigation of intraocular lens acrylic materials
Bertrand, Virginie ULg; Bozukova, Dimitriya; Svaldo Lanero, Tiziana et al

in Journal of Cataract & Refractive Surgery (2014), 40(9), 1536-1544

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See detailLa diversité culturelle dans les accords commerciaux : vers une nouvelle approche ?
Vlassis, Antonios ULg

Article for general public (2014)

En premier lieu, le numéro de septembre met en lumière le texte des accords commerciaux du Canada avec l’Union européenne et la Corée du Sud et il analyse la façon dont les négociateurs ont traité des ... [more ▼]

En premier lieu, le numéro de septembre met en lumière le texte des accords commerciaux du Canada avec l’Union européenne et la Corée du Sud et il analyse la façon dont les négociateurs ont traité des industries culturelles et de la question de la diversité des expressions culturelles. En deuxième lieu, il aborde les enjeux récents des services audiovisuels non-linéaires qui bouleversent les acteurs dans le paysage audiovisuel, ainsi que la nature et les objectifs de l’intervention publique dans le secteur. En troisième lieu, il met l’accent sur la confrontation entre les auteurs/éditeurs et le géant américain de commerce en ligne Amazon qui révèle l’importance de la mise en place de mesures réglementaires dans le domaine des services culturels numériques – tels que le livre électronique - qui représentent l’avenir du secteur. Enfin, Louise Beaudoin, ancienne ministre des Relations internationales et de la Francophonie du Québec et actrice de premier plan dans le processus de la construction de la Convention sur la diversité des expressions culturelles (CDEC) nous explique l’impact des technologies numériques sur la mise en œuvre de la CDEC, montrant la nécessité d’adapter la CDEC aux défis de l’ère numérique. [less ▲]

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See detailNIR interferometric observations of massive hierarchical triple systems: Tr16-104 and HD150136
Gosset, Eric ULg; Le Bouquin, Jean-Baptiste; Absil, Olivier ULg et al

in de Grijs, Richard (Ed.) Binary Systems: their Evolution and Environments (2014, September)

We report on an observational astrometric study of the orbit of the tertiary stars in two massive hierarchical triple systems. The work is complemented by radial velocity data with the aim of deriving the ... [more ▼]

We report on an observational astrometric study of the orbit of the tertiary stars in two massive hierarchical triple systems. The work is complemented by radial velocity data with the aim of deriving the full 3D orbit and constraints on the orbital planes. This is the first report of the tertiary star's detection for Tr16-104. The work is a natural extension of the search for binaries among massive O-stars. The basic motivation of the study of hierarchical triple systems is the determination of the masses of the individual components and the derivation of the relative orientation of the two orbital planes, with the ultimate aim of understanding the related star formation processes. [less ▲]

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See detailEstimating the out-of-sample predictive ability of trading rules: a robust bootstrap approach
Hambuckers, julien ULg; Heuchenne, Cédric ULg

E-print/Working paper (2014)

In this paper, we estimate the out-of-sample predictive ability of a set of trading rules. Usually, this ability is estimated using a rolling-window sample-splitting scheme, true out-of-sample data being ... [more ▼]

In this paper, we estimate the out-of-sample predictive ability of a set of trading rules. Usually, this ability is estimated using a rolling-window sample-splitting scheme, true out-of-sample data being rarely available. We argue that this method makes a poor use of the available information and creates data mining possibilities. Instead, we introduce an alternative bootstrap approach, based on the .632 bootstrap principle. This method enables to build in-sample and out-of-sample bootstrap data sets that do not overlap and exhibit the same time dependencies. We illustrate our methodology on IBM and Microsoft daily stock prices, where we compare 11 trading rules specifications. For the data sets considered, two different filter rule specifications have the highest out-of-sample mean excess returns. However, all tested rules cannot beat a simple buy-and-hold strategy when trading at a daily frequency. [less ▲]

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See detailZola ethnographe ?
Ledent, David ULg

in Cahiers Naturalistes : Bulletin officiel de la Société Littéraire des Amis d'Emile Zola (2014), 88

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