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See detailElastofibrome dorsal
TOMASELLA, Marco ULg

Conference (2009, December 14)

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See detailPrediction of genetic interactions in yeast using machine learning
Schrynemackers, Marie ULg

Conference (2009, December 14)

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See detailCharacterization of spatio-temporal organization of slow waves during human NREM sleep
Schrouff, Jessica ULg; Leclercq, Yves ULg; Foret, Ariane et al

Poster (2009, December 14)

Sleep is a behavior commonly observed in a large number of animal species. However, neuroscientists still poorly understand the meaning of this loss of consciousness absolutely needed for life. In the ... [more ▼]

Sleep is a behavior commonly observed in a large number of animal species. However, neuroscientists still poorly understand the meaning of this loss of consciousness absolutely needed for life. In the present work, we established different methods to characterize the Slow Wave Sleep most recognizable patterns: the Slow Waves (SWs). Since the anatomical structure of white matter tracts that connect various brain regions is not random and thus must constraint the propagation of waves (Hagmann et al., 2008), our basic hypothesis was that large white matter bundles would bias the propagation of SW along specific patterns, which could be identified in homogeneous clusters of waves. To investigate our hypothesis, SWs were detected automatically on the three first periods of SWS using an algorithm based on Massimini et al., 2004. They were then clustered using a two steps procedure involving a hierarchical clustering based on delay maps and a k-means clustering based on the SWs potential in a given time interval around the maximum power of the SW negative peak. To compute the relevance of the final clusters, a mathematical criterion was implemented as well as a visual check. Results of the multisubjects study showed that only bad quality and small clusters could be obtained, suggesting that there is no particular organization of SWs across the night and inforcing the hypothesis that SWs are local phenomena, each one decreasing the homeostatic pressure in only one specific area. [less ▲]

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See detailLettura del canto XXIX dell'Orlando Furioso
Morato, Nicola ULg

Scientific conference (2009, December 14)

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See detailThe Spatial Morphology of Equatorial Electron Beams Near Io
Jacobsen, S.; Saur, J. S.; Neubauer, F. M. et al

Conference (2009, December 14)

The Galileo spacecraft observed energetic field-aligned electron beams very close to Io during several flybys. We apply a three-dimensional magnetohydrodynamic (MHD) model of the far-field Io-Jupiter ... [more ▼]

The Galileo spacecraft observed energetic field-aligned electron beams very close to Io during several flybys. We apply a three-dimensional magnetohydrodynamic (MHD) model of the far-field Io-Jupiter interaction to simulate for the first time the location and spatial shape of field-aligned electron beams. Io continuously generates MHD waves by disturbing the Jovian magnetoplasma. Currents carried by Alfvén waves propagate predominantly along the magnetic field lines. As the number of charge carriers decreases along the travelpath, electrons are accelerated towards Jupiter. These energetic electrons precipitate into the Jovian ionosphere, visible as prominent Io footprint (IFP) emission. Electrons are also accelerated towards Io and form the equatorial beams observed by the Galileo spacecraft. Unlike the beam formation, the position and spatial structure of these beams has not been addressed in detail before. We use a 3D MHD model with initial conditions corresponding to the individual Galileo flyby and determine the spatial morphology of the beams in Io's orbital plane. Our results are in good agreement with the Galileo observations. We find that the ratio of the one-way traveltime of the Alfvén wave from Io to Jupiter and the convection time of the plasma past the obstacle controls the location of the beams. This leads to the conclusion that at other satellites with other plasma environments, e.g. Ganymede, Callisto, Europa and Enceladus, the electron beams might not be close to the satellite, but can be shifted significantly downstream along its plasma wake. Thus, the future search for field-aligned electron populations near a satellite should be further extended to the wake region. [less ▲]

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See detailSummary of aim and achievements in Work Package 7 "Functional Coatings"
Jérôme, Christine ULg

Conference (2009, December 14)

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See detailAFM-based mechanical testing of electrospun PCL fibers
Croisier, Florence ULg; Duwez, Anne-Sophie ULg; Jérôme, Christine ULg et al

Poster (2009, December 14)

Poly(ε-caprolactone)(PCL forms a part of the aliphatic polyesters; the biodegradable and biocompatible character of these polymers makes them outstanding candidates for short-to medium-term biomedical ... [more ▼]

Poly(ε-caprolactone)(PCL forms a part of the aliphatic polyesters; the biodegradable and biocompatible character of these polymers makes them outstanding candidates for short-to medium-term biomedical applications, especially in the form of nanometric fibers,as their assembly mimics the extracellular matrix structure. However, a prerequisite to their application as nanofibrous biomaterial scaffolds is the investigation of their mechanical strength. In the present study, PCL fibers produced by electrospinning were individually tested using an AFM-based nano-scale three-point bending technique. [less ▲]

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See detailResistencia desquiciada en El ejército iluminado de David Toscana
Vanden Berghe, Kristine ULg

Conference (2009, December 13)

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See detailVoltaire et l’Optimisme. Candide aujourd’hui
Tilkin, Françoise ULg

Conference given outside the academic context (2009)

Detailed reference viewed: 33 (3 ULg)
See detailEvolution des traditions culturelles dans la vallée du moyen Euphrate de la fin du Bronze ancien au début du Bronze moyen
Colonna d'Istria, Laurent ULg

Doctoral thesis (2009)

The valley of the Middle Euphrates, hyphen between South Mesopotamia and Western Syria, was ruled by a šakkanakku lived in Mari (Tell Hariri, Syria) during the end of the third millennium and early second ... [more ▼]

The valley of the Middle Euphrates, hyphen between South Mesopotamia and Western Syria, was ruled by a šakkanakku lived in Mari (Tell Hariri, Syria) during the end of the third millennium and early second millennium. This time period named "šakkanakku-period" is particularly studied since twenty years An overview of archaeological and historical data from the Middle Euphrates valley during the time of šakkanakku suggest that the kingdom of Mari during that time has established itself as a power independent and prosperous until the 19th century (end of the time of šakkanakku) where data are less explicit historically. The new text data from Mari, and Terqa (north of Mari), of the most dated from the end of šakkanakku-period, shows continuance and ruptures between the end of šakkanakku-period and the next period ("Amorite-period"). This continuance and ruptures are examined in several areas such as language, "scribal tradition" or in the legal tradition. The dialect of this text (19th century) shows that linguistic tradition is deeply rooted in the universe Syria. After the advent of the Amorite Yahdun-Lim who ended the time of the šakkanakku the Syrian characteristics in the dialect remains present, but it is less important because a reform of writing modeled on southern Mesopotamia (Iraq current), probably due to the preponderance of political Ešnunna during the end of the 19th century. Finally, this new text has also allowed dealing the historical interaction of the last šakkanakku Mari with condottieri Amorite whose father Yahdun-Lim in the 19th century. [less ▲]

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See detailTree based ensemble models regularization by convex optimization
Cornélusse, Bertrand ULg; Geurts, Pierre ULg; Wehenkel, Louis ULg

Conference (2009, December 12)

Tree based ensemble methods can be seen as a way to learn a kernel from a sample of input-output pairs. This paper proposes a regularization framework to incorporate non-standard information not used in ... [more ▼]

Tree based ensemble methods can be seen as a way to learn a kernel from a sample of input-output pairs. This paper proposes a regularization framework to incorporate non-standard information not used in the kernel learning algorithm, so as to take advantage of incomplete information about output values and/or of some prior information about the problem at hand. To this end a generic convex optimization problem is formulated which is first customized into a manifold regularization approach for semi-supervised learning, then as a way to exploit censored output values, and finally as a generic way to exploit prior information about the problem. [less ▲]

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See detailLiposomes loaded with diglyceride esters of methotrexate and melphalan: studies on stability and hemocompatibility
Kuznetsova, N; Kandyba, A; Bovin, N et al

in Proceedings of the International Liposome Society 2009 Meeting (2009, December 12)

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See detailNADH pathway and H2 production in Chlamydomonas reinhardtii
Lecler, Renaud ULg

Scientific conference (2009, December 12)

Detailed reference viewed: 11 (5 ULg)