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See detailLa localisation des grandes zones logistiques
Merenne-Schoumaker, Bernadette ULg

in Bulletin de la Société Géographique de Liège (2007), (49), 31-40

The growth of logistics has recently fathered many new zones of specialized activities, called most of the times parks or logistic platforms. The objective of the article consists in understanding their ... [more ▼]

The growth of logistics has recently fathered many new zones of specialized activities, called most of the times parks or logistic platforms. The objective of the article consists in understanding their development and in identifying the logics of location. For this purpose, we have first tried to identify better the domain of activities: types of logistics, carried out operations, concerned sectors, concerned operators... Afterwards, on the basis of data mostly coming from professional circles, we have attempted to identify the factors and constraints of the new zones location, and to specify the mechanisms of the new real estate business linked to those zones, our goal consisting in bringing out the main principles of location on the scale of the countries, regions and sites choices. In the light of this first analysis, the logic seems pretty specific and takes place undoubtedly between the logic of industries and services. [less ▲]

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See detailLa régulation économique et ses implications juridiques: enjeux et débats
Thirion, Nicolas ULg

in Thirion, Nicolas; Peltzer, Patrick (Eds.) La régulation économique dans la vie des affaires (2007)

Etude destinée à identifier les différentes questions juridiques auxquelles donne lieu un processus de libéralisation/ régulation d'un secteur économique

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See detailChronologie, céramique et statistique
Deru, Xavier ULg

in Rivet L. (Ed.) Actes de la Société française d’étude de la céramique en Gaule, Langres 2007 (2007)

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See detailA finite element analysis of spatial solitons in optical fibres
Nicolet, A.; Drouart, F.; Renversez, G. et al

in COMPEL (2007), 26(4), 1105--1113

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See detailThe gold-ammonia bonding patterns of neutral and charged complexes Au m 0+/-1-(NH3)n. I. Bonding and charge alternation.
Kryachko, Eugène ULg; Remacle, Françoise ULg

in Journal of Chemical Physics (2007), 127(19), 194305

The gold-ammonia bonding patterns of the complexes which are formed between the ammonia clusters (NH/sub 3/)/sub 1<or=n<or=3/ and gold clusters of different sizes that range from one gold atom to the tri ... [more ▼]

The gold-ammonia bonding patterns of the complexes which are formed between the ammonia clusters (NH/sub 3/)/sub 1<or=n<or=3/ and gold clusters of different sizes that range from one gold atom to the tri-, tetra-, and 20-nanogold clusters are governed by two basic and fundamentally different ingredients: the anchoring Au-N bond and the nonconventional N-H ... Au hydrogen bond. The latter resembles, by all features, a conventional hydrogen bond and is formed between a typical conventional proton donor N-H group and the gold cluster that behaves as a nonconventional proton acceptor. We provide strong computational evidence that the gold-ammonia bonding patterns exhibit distinct characteristics as the Z charge state of the gold cluster varies within Z=0,+/-1. The analysis of these bonding patterns and their effects on the N-H ... N H-bonded ammonia clusters are the subject of this paper. [less ▲]

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See detailVector versus Scalar Spatial Solitons in Microstructured Optical Fibres
Drouart, F.; Nicolet, A.; Renversez, G. et al

in Proceedings of the 16th Conference on the Computation of Electromagnetic Fields, COMPUMAG 2007 (2007)

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See detailMutational Analysis Of The Tre2 Oncogene Encoding An Inactive Rabgap
Bizimungu, C.; Thomas, Annick ULg; Brasseur, Robert ULg et al

in Biotechnology Letters (2007), 29(12), 1927-37

The TRE2 oncoprotein is structurally related to the RabGAP (GTPase-activating protein) family. However, TRE2 seems enzymatically inactive. Two regions are important for its lack of GAP activity. First ... [more ▼]

The TRE2 oncoprotein is structurally related to the RabGAP (GTPase-activating protein) family. However, TRE2 seems enzymatically inactive. Two regions are important for its lack of GAP activity. First, the TBC domain, forming the catalytically active domain of RabGAPs, is non-functional in the oncoprotein. Also involved in TRE2 inactivity is the 93-aa region flanking the TBC domain on the C-terminal side. In order to identify the residues responsible for non-functionality, we performed hydrophobic cluster analysis of the oncoprotein sequence, combined with secondary structure prediction, receptor-binding domain analysis, and a tilted peptide calculation. These analyses were complemented with site-directed and random mutagenesis experiments. On the basis of our data, we hypothesize that the lack of secondary structure of the region flanking the TBC domain in TRE2 may explain why this region plays a role in the lack of GAP activity, even when a potentially functional TBC domain is present. [less ▲]

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See detailLe régime matrimonial primaire. Jurisprudence récente
Leleu, Yves-Henri ULg

Book published by La Charte (2007)

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See detailDe novo C16- and C24-ceramide generation contributes to spontaneous neutrophil apoptosis.
Seumois, Gregory; Fillet, Marianne ULg; Gillet, Laurent ULg et al

in Journal of Leukocyte Biology (2007), 81(6), 1477-1486

Neutrophils rapidly undergo spontaneous apoptosis following their release from the bone marrow. Although central to leukocyte homeostasis, the mechanisms that regulate neutrophil apoptosis remain poorly ... [more ▼]

Neutrophils rapidly undergo spontaneous apoptosis following their release from the bone marrow. Although central to leukocyte homeostasis, the mechanisms that regulate neutrophil apoptosis remain poorly understood. We show here that apoptosis of cultured neutrophils is preceded by a substantial increase in the intracellular levels of 16 and 24 carbon atom (C(16)- and C(24))-ceramides, which are lipid second messengers of apoptosis and stress signaling. Treatment of neutrophils with fumonisin B(2), a selective inhibitor of the de novo pathway of ceramide synthesis, prevented accumulation of C(16)- and C(24)-ceramides. Moreover, fumonisin B(2) significantly reduced caspase-3, -8, and -9 activation and apoptosis in these cells. Conversely, 3-O-methylsphingomyelin and fantofarone, which are specific inhibitors of neutral and acid sphingomyelinases, respectively, neither inhibited C(16)- and C(24)-ceramide production nor decreased the apoptosis rate in neutrophils, indicating that in these cells, ceramides are not generated from membrane sphingomyelin. Further experiments showed that increasing endogenous C(16)- and C(24)-ceramide levels by using DL-threo-1-phenyl-2-palmitoylamino-3-morpholino-1-propanol and (1S,2R)-D-erythro-2-(N-myristoylamino)-1-phenyl-1-propanol, two inhibitors of ceramide metabolism, enhances caspase-3, -8, and -9 activity and increases neutrophil apoptosis. Similarly, apoptosis was induced rapidly when synthetic C(16)- and/or C(24)-ceramides were added to neutrophil cultures. Finally, GM-CSF, a cytokine that delays neutrophil apoptosis, abrogated C(16)- and C(24)-ceramide accumulation totally in cultured neutrophils, whereas Fas ligation accelerated apoptosis in these cells without affecting de novo ceramide production. We conclude that de novo generation of C(16)- and C(24)-ceramides contributes to spontaneous neutrophil apoptosis via caspase activation and that GM-CSF exerts its antiapoptotic effects on neutrophils, at least partly through inhibition of ceramide accumulation. [less ▲]

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See detailImpact of Transport and Dynamical Processes Upon Stellar Oscillation Frequencies
Goupil, M. J.; Dupret, Marc-Antoine ULg

in EAS Publications Series (2007)

In order to prepare the theoretical interpretation of the oscillation frequencies detected by CoRoT, comparisons of results from standard stellar models by the ESTA group have proven to be very useful ... [more ▼]

In order to prepare the theoretical interpretation of the oscillation frequencies detected by CoRoT, comparisons of results from standard stellar models by the ESTA group have proven to be very useful. The next issue which is briefly addressed here is ``what are the additional physical processes that must be included in stellar models computed with different evolutionary codes for the next comparison exercises?'' We therefore discuss the impact on oscillation frequencies of several physical processes which are still poorly understood and/or poorly modelled but cannot be fully discarded. [less ▲]

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See detailFormules de calcul de distances à respecter entre bâtiments d'élevage et habitations pour que l'odeur soit acceptable. Comparaisons et proposition, puis validation d'une formule pour la Wallonie (Belgique)
Nicolas, Jacques ULg; Cobut, Pierre; Otte, Benoît et al

in Actes des septièmes journées de la recherche avicole (2007)

Le Gouvernement de la Région wallonne (Belgique) a confié à l'unité de recherche la tâche d'inventorier les différentes directives relatives au calcul de la distance à respecter entre les bâtiments d ... [more ▼]

Le Gouvernement de la Région wallonne (Belgique) a confié à l'unité de recherche la tâche d'inventorier les différentes directives relatives au calcul de la distance à respecter entre les bâtiments d'élevage (dont les élevages de volailles) et les habitations pour assurer un niveau d'acceptabilité de l'odeur générée. Huit formules de calcul, appliquées dans différents pays, ont été examinées et comparées et une étude de sensibilité des différents paramètres a été menée. Cette première comparaison a donné lieu à une appréciation des différentes méthodologies, selon des critères de pertinence par rapport à la réalité de terrain, de faisabilité technique, d'applicabilité à la Région wallonne et de cohérence avec les théories de la génération et de la dispersion des odeurs. Sur base de ces différents éléments, une formule originale a été proposée : elle permet de calculer une distance d'acceptabilité de la nuisance olfactive sur base de facteurs multiplicatifs incluant les éléments suivants : nombre et type d'animaux, facteurs techniques de l'étable (type, stockage et manipulation de la litière, ventilation, nourriture), environnement orographique et météorologique et type de voisinage. Les différents paramètres de cette formule ont été ajustés grâce à des visites de terrain, puis la formule a été validée sur 22 poulaillers et élevages de canards. La compatibilité a été testée avec les unités d'odeur, les débits d'odeur et les percentiles spatio-temporels utilisés pour apprécier les zones de nuisances olfactives. [less ▲]

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See detailIl faut se méfier du tableau
Guillaume, Jean-François ULg

in Puzzle (2007), 23

Le maintien de toutes les tâches constitutives d’une identité et d’un métier d’élève (s’asseoir sur les bancs de l’école, centrer son attention sur le tableau, écouter le professeur, etc.) se prêt mal aux ... [more ▼]

Le maintien de toutes les tâches constitutives d’une identité et d’un métier d’élève (s’asseoir sur les bancs de l’école, centrer son attention sur le tableau, écouter le professeur, etc.) se prêt mal aux aptitudes requises dans une société de la connaissance. Cette inertie des pratiques scolaires contribuera inévitablement à renforcer l’importance des investissements éducatifs des familles, et les disparités sociales qui les accompagnent. Il paraît en effet bien illusoire de vouloir affronter les nouveaux défis propres aux sociétés de l’information avec le bagage technique et conceptuel d’un mode d’organisation sociale qui s’éteint. [less ▲]

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See detailLa mise en charge immédiate en réhabilitation orale implantaire
Lecloux, Geoffrey ULg; Lamy, Marc ULg

in Revue Médicale de Liège (2007), 62

Immediate loading of oral implants is of great interest for dental practitioners because with this technique, the treatments are faster and the patients do not have to wear an uncomfortable removable ... [more ▼]

Immediate loading of oral implants is of great interest for dental practitioners because with this technique, the treatments are faster and the patients do not have to wear an uncomfortable removable provisional prosthesis. improvement of surgical protocols, brand of implants and surface topography makes this procedure reliable. a recent systematic review report a global survival rate of immediate loaded implants of 96,4% with a maximum follow up of 13 years. [less ▲]

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See detailFaire et faire faire. Le principe d'isomorphisme dans la formation des enseignants de sciences sociales
Guillaume, Jean-François ULg; Xhonneux, Michel ULg

in Puzzle (2007), 22

Les auteurs présentent la démarche d'apprentissage retenue dans le cadre de la formation de futurs enseignants de sciences sociales : déconstruction des routines scolaires et des représentations initiales ... [more ▼]

Les auteurs présentent la démarche d'apprentissage retenue dans le cadre de la formation de futurs enseignants de sciences sociales : déconstruction des routines scolaires et des représentations initiales, clarification des choix pédagogiques, formalisation des procédés didactiques. Il s'agit donc d'agir sur les dimensions structurelles des situations d'interaction professeur-élève, et d'éviter de se reposer sur les seules (bonnes) intentions individuelles. [less ▲]

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See detailSoigner la relation pour sauver les meubles
Guillaume, Jean-François ULg; Xhonneux, Michel ULg

Article for general public (2007)

L'idée que les apprentissages scolaires exigent au préalable un climat relationnel favorable semble bien implantée dans le monde scolaire. Mais il serait opportun d'inverser cette propostion et de ... [more ▼]

L'idée que les apprentissages scolaires exigent au préalable un climat relationnel favorable semble bien implantée dans le monde scolaire. Mais il serait opportun d'inverser cette propostion et de considérer que la qualité du climat relationnel est un bénéfice secondaire (au double sens du terme) induit par le mode d'organisation pédagogique de la classe. [less ▲]

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See detailSuperconducting microrings as magnetic pinning centers
Gillijns, W.; Silhanek, Alejandro ULg; Moshchalkov, V. V.

in Applied Physics Letters (2007), 91(20),

The nucleation of the superconducting condensate in an Al film deposited on top of a periodic array of microsized Pb rings is investigated using transport measurements. We demonstrate that these Pb rings ... [more ▼]

The nucleation of the superconducting condensate in an Al film deposited on top of a periodic array of microsized Pb rings is investigated using transport measurements. We demonstrate that these Pb rings form tunable pinning sites which can be switched at will to repel or attract vortices in the Al film, depending on their magnetic history. After zero field cooling, a repulsive interaction between the rings and the vortices is observed, while after field cooling, the interaction becomes attractive. The flexibility of such current-induced pinning centers can lead to an enhanced control over the vortex motion. (c) 2007 American Institute of Physics. [less ▲]

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