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See detailAnalisis de la variabilidad molecular de una coleccion peruana de Smallanthus sonchofolius (Poepp & Endl) H. Robinson
Roberto, C.; Mansillas, S.; Lopez, C. B. et al

in Ecologia Aplicada (2006), 5(1,2), 75-80

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See detailBiodiversity of cucurbits consumed as sauce thickener in Ivory Coast : a capital resource for the economic prosperity of rural women
Zoro Bi, I.; Koffi, K. K.; Dje, Y. et al

in Tropical Biodiversity : Science, Date, Conservation (2006)

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See detailIndigenous cucurbits of Côte d'Ivoire : a review of their genetic resources
Zoro Bi, I.; Koffi, K. K.; Dje, Y. et al

in Science et Nature (2006), 3(1), 1-9

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See detailInduccion floral de Arracacha
Blas, S. R.; Julca-Otiniano, A.; Baudoin, Jean-Pierre ULg

in IDESIA (2006), 24(1), 1-7

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See detailEfecto del derivado de la lactosa sobre la población microbiana de muestras fecales de cerdos posdestete.
Rosero, Olga Lucia; Leterme, Pascal; Bindelle, Jérôme ULg et al

in Acta Agronomica (2006), 55

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See detailThe platelet ATP and ADP receptors.
Oury, Cécile ULg; Toth-Zsamboki, Emese; Vermylen, Jos et al

in Current Pharmaceutical Design (2006)

This review focuses on recent findings on the physiology of these platelet ADP and ATP receptors, their distinct downstream intracellular signaling pathways as well as on the available agonists ... [more ▼]

This review focuses on recent findings on the physiology of these platelet ADP and ATP receptors, their distinct downstream intracellular signaling pathways as well as on the available agonists, antagonists and inhibitors that allow their pharmacological discrimination. [less ▲]

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See detailLa problématique chablis, s'y préparer et gérer la crise ! (1ère partie)
Collin, Jean-François; Jourez, Benoît ULg; Hebert, Jacques ULg

in Forêt Wallonne (2006), (80), 3-12

L’objectif de la présente réflexion est de répondre à quelques questions clés face auxquelles la filière bois se trouve confrontée lors d’événements venteux occasionnant des chablis de grande ampleur. Que ... [more ▼]

L’objectif de la présente réflexion est de répondre à quelques questions clés face auxquelles la filière bois se trouve confrontée lors d’événements venteux occasionnant des chablis de grande ampleur. Que faire ? Comment diminuer les risques ? Comment limiter les pertes ? Ces questions servent de fil conducteur à un projet de recherche mené actuellement en Région wallonne. Ce projet ainsi que quelques éléments de réponse quant à la limitation des risques sont présentés ci-après. [less ▲]

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See detailLa problématique chablis, s'y préparer et gérer la crise ! (2ème partie)
Collin, Jean-François; Jourez, Benoît ULg; Hebert, Jacques ULg

in Forêt Wallonne (2006), (80), 13-26

Que faire, quand, suite à une tempête, la filière bois se trouve face à une forêt dévastée et une quantité de bois importante et imprévue sur le marché ? Le projet mené actuellement en Région wallonne et ... [more ▼]

Que faire, quand, suite à une tempête, la filière bois se trouve face à une forêt dévastée et une quantité de bois importante et imprévue sur le marché ? Le projet mené actuellement en Région wallonne et dont il a déjà été question dans la première partie de ce sujet, a précisément pour objectif d’aider les acteurs de la filière à prendre les meilleures décisions afin de limiter leurs pertes respectives. Quelques éléments de réponse quant à la limitation des risques ayant déjà été présentés précédemment, nous aborderons dans cette partie les différentes actions à mettre en oeuvre afin de gérer au mieux la crise liée aux chablis. [less ▲]

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See detailUn modèle de document simple de gestion (DSG) applicable en propriété forestière privée wallonne
Jandrain, S.; Puissant, T.; Colson, Vincent ULg et al

Book (2006)

Most of the private forest owners don’t use a management plan especially in the case of woodlands scaterred in small compartments. Furthermore they generally miss documents compiling updated descriptive ... [more ▼]

Most of the private forest owners don’t use a management plan especially in the case of woodlands scaterred in small compartments. Furthermore they generally miss documents compiling updated descriptive information dealing with administrative data, stand and structure composition, ownership location, planning and control of silvicultural operations. A similar situation is observed as concerns maps and cartographic elements. The main objective of this paper is to present a simple information system based upon data easy to collect and suitable for a great number of forest properties whatever their sizes are. Informations from the forest are collected at the compartment’s level (planning unit defined by permanent boundaries) and are registered in a computerized data base so that any owner can make continuing use of information such as various repartitions (areas and species by age, by structure,..), digitized thematic maps (stand, soil, silvicultural operations,..). Such a system provided in option can be considered as a pragmatic decision support whose one of the main objectives is to assure the follow-up of compartments years after years. To support it, the setting up of a structure at a regional level should be very useful to the forest managers and also a way to better assist the private forest ownership in the frame of a regional forest policy taking attention to the general recommendations of sustainable management. [less ▲]

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See detailEtude de la variabilité et des liens génétique entre les populations Holsteins Luxembourgeoise et Tunisienne
Hammami, Hedi ULg

Master of advanced studies dissertation (2006)

L’analyse d’un pedigree combiné a permis d’étudier la variabilité et les liens génétiques entre les 2 populations luxembourgeoise et tunisienne. L’extraction et l’ajout de plusieurs ancêtres a permis une ... [more ▼]

L’analyse d’un pedigree combiné a permis d’étudier la variabilité et les liens génétiques entre les 2 populations luxembourgeoise et tunisienne. L’extraction et l’ajout de plusieurs ancêtres a permis une amélioration des profondeurs des 2 pedigrees. Cependant, la connaissance des pedigrees reste partielle pour les 2 populations malgré cette consolidation. L’intervalle de génération de la voie mère-fille reste similaire pour les 2 populations. Par contre, l’intervalle de génération père-fille était différent entre les 2 populations. En effet, il était plus élevé et de l’ordre de 9 ans pour le cas de la population Holstein tunisienne, mais il n’a pas dépassé les 7 ans chez la population luxembourgeoise. Les coefficients de consanguinité ont été estimés selon une approche modifiée de la méthode de Meuwissen et Luo (1992). Les niveaux de consanguinité enregistrés sont similaires à la majorité des valeurs et trends obtenus dans la plupart des études menées sur la Holstein dans le monde. Ces niveaux et pour le cas des 2 populations restent faibles jusqu’à la fin des années 1980, mais augmentent considérablement après les années 1990 d’une manière plus accentuée chez la population femelle tunisienne. Les 2 populations sont caractérisées par des nombres réduits de fondateurs efficaces et d’ancêtres efficaces. 8 parmis les 10 ancêtres ayant la contribution marginale la plus élevée à chacune des 2 populations femelles de référence restent identiques mais avec des contributions appropriées à chacune d’elles. Ces ancêtres ont contribué à plus de 32% au patrimoine génétique des 2 populations femelles de référence. La parenté moyenne entre les 2 populations femelles ainsi que celle estimée entre les taureaux utilisés par ces 2 populations entre 1990 et 2000 montre que ces dernières sont bien connectées. Ceci permettra une investigation des interactions génotype x environnement basée sur la similarité et la parenté génétique entre ces 2 populations. [less ▲]

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See detailTreatment of anaemia with erythropoietin
Beguin, Yves ULg; Dujardin, C.; Piron, Maude ULg et al

in Brugnara, C.; Beaumont, C. (Eds.) ESH Scientific Updates. Disorders of Iron Homeostasis, Erythrocytes and erythropoiesis (2006)

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See detailStress constrained optimization using X-FEM and Level-Set description
Van Miegroet, Laurent ULg; Jacobs, Thibault; Lemaire, Etienne ULg et al

in Proceedings of III European Conference on Computational Mechanics. Solids, Structures and Coupled Problems in Engineering (2006)

This paper presents and describes an intermediate approach which takes its place between the two classical methods of shape and topology optimization. It is based on using the recent Level Set description ... [more ▼]

This paper presents and describes an intermediate approach which takes its place between the two classical methods of shape and topology optimization. It is based on using the recent Level Set description of the geometry and the novel eXtended Finite Element Method (X-FEM). The method benefits from the fixed mesh work using X-FEM and from the curves smoothness of the Level Set description. Design variables are shape parameters of basic geometric features. The number of design variables of this formulation remains small whereas various global and local constraints can be considered. A key problem which is investigated here is the sensitivity analysis and the way it can be carried out precisely and efficiently. Numerical applications revisit some classical 2D (academic) benchmarks from shape optimization and illustrate the great interest of using X-FEM and Level Set description together. The paper presents the results of stress constrained problems using the proposed X-FEM and Level Set based formulation. A central issue is the sensitivity analysis (related to the compliance and/or the stresses) and the way it can be carried out efficiently. A special attention is also paid to stress constrained problems which are often neglected in other Level Set Methods works. [less ▲]

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See detailPip, a novel activator of phenazine biosynthesis in Pseudomonas chlororaphis PCL1391
Girard, Geneviève; Barends, S.; Rigali, Sébastien ULg et al

in Journal of Bacteriology (2006), 188(23), 8283-8293

Secondary metabolites are important factors for interactions between bacteria and other organisms. Pseudomonas chlororaphis PCL1391 produces the antifungal secondary metabolite phenazine-1-carboxamide ... [more ▼]

Secondary metabolites are important factors for interactions between bacteria and other organisms. Pseudomonas chlororaphis PCL1391 produces the antifungal secondary metabolite phenazine-1-carboxamide (PCN) that inhibits growth of Fusarium oxysporum f. sp. radius lycopersici the causative agent of tomato foot and root rot. Our previous work unraveled a cascade of genes regulating the PCN biosynthesis operon, phzABCDEFGH. Via a genetic screen, we identify in this study a novel TetR/AcrR regulator, named Pip (phenazine inducing protein), which is essential for PCN biosynthesis. A combination of a phenotypical characterization of a pip mutant, in trans complementation assays of various mutant strains, and electrophoretic mobility shift assays identified Pip as the fifth DNA-binding protein so far involved in regulation of PCN biosynthesis. In this regulatory pathway, Pip is positioned downstream of PsrA (Pseudomonas sigma factor regulator) and the stationary-phase sigma factor RpoS, while it is upstream of the quorum-sensing system PhzI/PhzR. These findings provide further evidence that the path leading to the expression of secondary metabolism gene clusters in Pseudomonas species is highly complex. [less ▲]

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See detailTHERMOELASTIC DAMPING IN VIBRATING BEAM ACCELEROMETER: A NEW THERMOELASTIC FINITE ELEMENT APPROACH
Lepage, Séverine; Le Traon, Olivier; KLapka, Igor et al

Conference given outside the academic context (2006)

In order to respond to the demand of accurate miniature inertial navigation systems, ONERA has been working on the design of a vibrating beam accelerometer called the Vibrating Inertial Accelerometer (VIA ... [more ▼]

In order to respond to the demand of accurate miniature inertial navigation systems, ONERA has been working on the design of a vibrating beam accelerometer called the Vibrating Inertial Accelerometer (VIA). The accuracy of the VIA is directly related to the thermoelastic quality factor of its sensitive element, which is a beam made of quartz. In this work, thermopiezoelectric finite element analyses of the beam are carried out in order to determine the thermoelastic quality factor. These finite element results are compared to the analytical and experimental quality factors. Due to their inherent restrictive assumptions, analytical models overestimate the quality factor while the finite element results are in good agreement with the experimental values. As the finite element model allows to take into account the real geometry of the beam and the piezoelectricity of the material, it allows to quantify more precisely the thermoelastic quality factor. [less ▲]

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See detailAntiviral diabetes susceptibility gene
Geenen, Vincent ULg

in International Diabetes Monitor (2006), 18

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See detailSolid-state NMR study of modified clay and polymer/clay nanocomposites
Grandjean, Jean ULg

in Clay Minerals (2006), 41

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See detail- Vers une meilleure protection des droits de la défense en matière de perquisitions ?
Jacobs, Ann ULg

in Revue de Droit Pénal et de Criminologie (2006)

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See detailLes mentions du mandat de perquisition comme protection des droits de défense
Jacobs, Ann ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2006)

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See detailMovement patterns, spatial distribution and depth preference by individual whitefish, Coregonus lavaretus in a small artificial lake
Ovidio, Michaël ULg; Neus, Yvan ULg; Rimbaud, Gilles ULg et al

in Folia Zoologica (2006), 55(4), 375-385

Using manual acoustic tracking our study quantified (1) the spatial distribution (2) the movement patterns and (3) the depth preference of adult whitefish, Coregonus lavaretus in it small artificial lake ... [more ▼]

Using manual acoustic tracking our study quantified (1) the spatial distribution (2) the movement patterns and (3) the depth preference of adult whitefish, Coregonus lavaretus in it small artificial lake of eastern Belgium were the species was introduced in 1978 for recreational fishing. From June to October 2004, n=6 C. lavaretus (LF 285-519 mm) were tracked (pingers and depth sensor transmitters) from a small boat over periods ranging from 98 to 108 days in Robertville Lake (elevation: 490 m; area: 63 ha max. depth: 47 in). Whitefish were consistently mobile but showed quite variable lake use patterns. Two individuals traveled the entire length and breadth of the lake, whereas others remained in movement in the deep zone in the middle part of the lake or near the retaining darn wall. Whitefish occupied positions in the water column ranging front 2.6 to 27.0 m (mean 12.7 +/- 5.6 m) that varied depending on individuals. This first study on individual whitefish behaviour provides a better understanding of the behavioural ecology of the species in small artificial lake. [less ▲]

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