References of "2007"
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See detailLes principales formations végétales
Ouédraogo, M.; Vermeulen, Cédric ULg; Cornélis, D.

in Delvingt, W.; Vermeulen, Cédric (Eds.) Nazinga (2007)

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See detailRole of beta 2-receptors in the anti-inflammatory effects of formoterol in rats with cadmium-induced acute pulmonary inflammation
Zhang, W.; Zhang, F.; Fievez, Laurence ULg et al

in Proceedings: Autumn Meeting of the Belgian Society of Fundamental and Clinical Physiology and Pharmacology (2007)

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See detailPaysages patrimoniaux en Wallonie (Belgique), analyse par approche des paysages témoins
Droeven, Emilie ULg; Dubois, Catherine; Feltz, Claude ULg

in Cahiers d'Economie et Sociologie Rurales (2007), 84-85

In 2000, the Walloon Region (Belgium) has initiated a research program at the Standing Conference on Territorial Development (CPDT) in order to address the European Landscape Convention requirements. The ... [more ▼]

In 2000, the Walloon Region (Belgium) has initiated a research program at the Standing Conference on Territorial Development (CPDT) in order to address the European Landscape Convention requirements. The research concentrated at first on the identification and the typology of Walloon macrolandscapes at a regional scale. Then the research focussed on the landscapes characterisation at a scale of 1/20 000 and their patrimonial qualification. The paper traces the research progress (definition of the concepts of landscape and patrimonial landscape, the adopted procedure) and presents the elaborated method to appreciate the landscapes scientific values, called the method of the “witness landscape”. It also presents the difficulties met during its application on the field. The method is iterative and combines the observation on the field, the review of both historic and present cartographies, the interpretation of aerial photographs and the mobilisation of the available bibliography. Reading, analysing, nderstanding and documenting the landscape in order to highlight the meaningful landscapes’ configurations and components, such was one of the research team contributions to the landscape management. [less ▲]

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See detailConclusion
Otte, Marcel ULg; Chirica, Vasile; Haesaerts, Paul et al

in Otte, Marcel; Chirica, Vasile; Haesaerts, Paul (Eds.) L'Aurignacien et le Gravettien de Mitoc-Malu Galben (Moldavie roumaine) (2007)

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See detailMitoc-Malu Galben: industrie osseuse et témoins esthétiques
Chirica, Vasile; Noiret, Pierre ULg

in Otte, Marcel; Chirica, Vasile; Haesaerts, Paul (Eds.) L'Aurignacien et le Gravettien de Mitoc-Malu Galben (Moldavie roumaine) (2007)

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See detailMitoc-Malu Galben: étude de l'industrie lithique
Otte, Marcel ULg; Noiret, Pierre ULg; Chirica, Vasile et al

in Otte, Marcel; Chirica, Vasile; Haesaerts, Paul (Eds.) L'Aurignacien et le Gravettien de Mitoc-Malu Galben (Moldavie roumaine) (2007)

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See detailA new single well tracer test: the Finite Volume Point Dilution Method. Theory, field application and model validation
Brouyère, Serge ULg; Batlle Aguilar, Jordi ULg; Goderniaux, Pascal ULg et al

in Calibration and Reliability in Groundwater Modelling: Credibility in Modelling (Pre-Published Proc. of ModelCARE’2007) (2007)

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See detailGénération automatique d'une base de données de silhouettes humaines au moyen d'un avatar humain tridimensionnel
Pierard, Sébastien ULg

Master's dissertation (2007)

Pour la conception de systèmes de vidéo-surveillance, il est avantageux d’avoir un système de détection automatique d’êtres humains. Certains de ces systèmes sont basés sur la reconnaissance de la forme ... [more ▼]

Pour la conception de systèmes de vidéo-surveillance, il est avantageux d’avoir un système de détection automatique d’êtres humains. Certains de ces systèmes sont basés sur la reconnaissance de la forme de silhouettes humaines. L’utilisation de méthodes d'apprentissage pour la reconnaissance nécessite une base de données de silhouettes humaines, dont il est intéressant d’automatiser la génération. Dans ce travail, nous utilisons un avatar humain tridimensionnel, celui du projet open-source MakeHuman, afin de générer automatiquement la base de données. Le choix des configurations (positions, orientations et poses) à donner à l’avatar pour obtenir une base de données adéquate est central. Dans un premier temps, nous tentons une étude de l’impact de modifications dans le mode tridimensionnel sur la silhouette. Cet impact est quantifié par la distance de Hausdorff. Parmi les modifications envisagées se trouvent le déplacement, la rotation et le changement de pose de l’avatar. Nous espérions déterminer, à partir de ces impacts, les pas par lesquels doivent varier les différents paramètres. Les configurations que doit prendre l’avatar, pour obtenir une base de données suffisamment riche sans être trop volumineuse, seront obtenues en prenant toutes les combinaisons des valeurs des différents paramètres. Le nombre de configurations est exponentiel en le nombre de degrés de liberté, ce qui rend l’approche inutilisable en pratique, même si nous sommes indifférents à la translation et à la mise à l’échelle des silhouettes. Dans un deuxième temps, nous avons opté pour une approche radicalement différente. Cette fois, nous n’espaçons plus les silhouettes, mais les poses. La position de l’avatar est fixée et il ne peut tourner qu’autour de l’axe vertical. Les poses sont choisies en effectuant des tirages aléatoires des différents paramètres. Cette approche aléatoire du problème a mené à l’élaboration d’un nouveau logiciel, Silhouette. Il est écrit en Java et une interface écrite en C lui permet, grâce à Java Native Interface d’exploiter efficacement le moteur de pose de MakeHuman. Parmi les fonctionnalités de Silhouette, notons la possibilité de restreindre les poses à un ensemble voulu, de ne générer que des silhouettes correspondant à des poses licites et d’annoter les silhouettes. Grâce au logiciel mis en place, nous avons été en mesure de générer diverses bases de données. Nous avons étudié l'impact de l'utilisation de celles-ci sur les performances d'un système de détection de personnes existant. Nous obtenons des résultats encourageants, 73% des silhouettes humaines étant correctement détectées. Un raffinement et un paramétrage soigneux de la méthode devraient mener à des résultats excellents. [less ▲]

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See detailEpithelial-mesenchymal transition process in human embryonic stem cells cultured in feeder-free conditions.
Ullmann, U.; In'T Veld, P.; Gilles, Christine ULg et al

in Molecular Human Reproduction (2007), 13(1), 21-32

Feeder-free human embryonic stem cell (hESC) culture is associated with the presence of mesenchymal-like cells appearing at the periphery of the colonies. The aim of this study was to identify this early ... [more ▼]

Feeder-free human embryonic stem cell (hESC) culture is associated with the presence of mesenchymal-like cells appearing at the periphery of the colonies. The aim of this study was to identify this early differentiation process. Long-term feeder-free hESC cultures using matrigel and conditioned medium from mouse and from human origin revealed that the appearance of mesenchymal-like cells was similar regardless of the conditioned medium used. Standard characterization confirmed the preservation of hESC properties, but the feeder-free cultures could not be maintained longer than 37 passages. The early differentiation process was characterized in the short term after switching hESCs cultured on feeders to feeder-free conditions. Transmission electron microscopy showed an epithelium-like structure inside the hESC colonies, whereas the peripheral cells revealed the acquisition of a rather mesenchymal-like phenotype. Immunochemistry analysis showed that cells at the periphery of the colonies had a negative E-cadherin expression and a positive Vimentin expression, suggesting an epithelial–mesenchymal transition (EMT). Nuclear staining of ß-catenin, positive N-cadherin and negative Connexin 43 expression were also found in the mesenchymal-like cell population. After RT–PCR analysis, Slug and Snail, both EMT-related transcription factors, were detected as up-regulated in the mesenchymal-like cell population. Taken together, our data suggest that culturing hESCs in feeder-free conditions enhances an early differentiation process identified as an EMT. [less ▲]

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See detailPréface: promouvoir la réflexion et la recherche sur l'anorexie
Born, Michel ULg

in L'observatoire, les Actes+ (2007)

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See detailCorrosion patina or intentional patina: Contribution of non-destructive analyses to the surface study of copper based archaeological objects
Mathis, François ULg; Descamps, Sophie; Delange, Elisabeth et al

in Dillmann, Philippe; Piccardo, Paolo; Matthiesen, H. (Eds.) et al Corrosion of metallic heritage artefacts: Investigation, conservation and prediction of long term behaviour (EFC 48) (2007)

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See detailLes industries aurignaciennes et "aurignacoïdes" en Moldavie après 30.000 BP
Noiret, Pierre ULg

in Annales de l'Université "Valahia" Târgoviste, Section d'Archéologie et d'Histoire (2007), IX

The lithic inventories from several sites excavated in Romania and in the Moldovan Republic suggest the existence of a Late Aurignacien around 27,500 BP, then of an Epi-Aurignacian, more recent, since 21 ... [more ▼]

The lithic inventories from several sites excavated in Romania and in the Moldovan Republic suggest the existence of a Late Aurignacien around 27,500 BP, then of an Epi-Aurignacian, more recent, since 21,000 BP. If the first seems to be a late expression of the Typical Aurignacian, the second corresponds only to a resurgence of some Aurignacian-like techniques, without any direct filiation. This phenomenon is, anyway, observable throughout Central and Eastern Europe and its connections with the Epigravettian are still barely known. [less ▲]

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See detailThe Asian Crisis Exchange Risk Exposure of U.S. Multinationals
Muller, Aline ULg; Verschoor, Willem

in Managerial Finance (2007), 33(9), 710-740

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See detailHemodynamic cerebral correlates of sleep spindles during human non-rapid eye movement sleep.
Schabus, Manuel ULg; Dang Vu, Thien Thanh ULg; Albouy, Geneviève ULg et al

in Proceedings of the National Academy of Sciences of the United States of America (2007), 104(32), 13164-9

In humans, some evidence suggests that there are two different types of spindles during sleep, which differ by their scalp topography and possibly some aspects of their regulation. To test for the ... [more ▼]

In humans, some evidence suggests that there are two different types of spindles during sleep, which differ by their scalp topography and possibly some aspects of their regulation. To test for the existence of two different spindle types, we characterized the activity associated with slow (11-13 Hz) and fast (13-15 Hz) spindles, identified as discrete events during non-rapid eye movement sleep, in non-sleep-deprived human volunteers, using simultaneous electroencephalography and functional MRI. An activation pattern common to both spindle types involved the thalami, paralimbic areas (anterior cingulate and insular cortices), and superior temporal gyri. No thalamic difference was detected in the direct comparison between slow and fast spindles although some thalamic areas were preferentially activated in relation to either spindle type. Beyond the common activation pattern, the increases in cortical activity differed significantly between the two spindle types. Slow spindles were associated with increased activity in the superior frontal gyrus. In contrast, fast spindles recruited a set of cortical regions involved in sensorimotor processing, as well as the mesial frontal cortex and hippocampus. The recruitment of partially segregated cortical networks for slow and fast spindles further supports the existence of two spindle types during human non-rapid eye movement sleep, with potentially different functional significance. [less ▲]

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See detailA dataset for hadron elastic scattering
Cudell, Jean-René ULg; Lenguel, Sasha; Martynov, E.

Textual, factual or bibliographical database (2007)

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See detailSéduisante théorie, douloureuse pratique: la foresterie communautaire camerounaise en butte à sa propre législation
Julve Larrubia, C.; Vandenhaute, M.; Vermeulen, Cédric ULg et al

in Parcs & Réserves (2007), 62(2), 18-24

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See detailWhole body vibration in the treatment of fibromyalgia: Influence on muscle performances
Maquet, Didier ULg; Helene, Loic; Demoulin, Christophe ULg et al

in Isokinetics & Exercise Science (2007), 15

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See detailLe moabi, une espèce « phare » de l’exploitation forestière en Afrique centrale
Doucet, Jean-Louis ULg; Kouadio, Y. L.

in Parcs & Réserves (2007), 62(2), 25-31

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