References of "2008"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailEffect Of A Bovine Colostrum Whey Supplementation On Growth Performance, Faecal Escherichia Coli Population And Systemic Immune Response Of Piglets At Weaning
Boudry, Christelle ULg; Dehoux, Jean-Paul; Wavreille, José et al

in Animal (2008), 2(5), 730-737

This study examined the effect of a bovine colsotrum whey supplementation on growth performance, feed intake, faecal Escherichia coli population and systemic immune response of piglets.

Detailed reference viewed: 45 (17 ULg)
Full Text
Peer Reviewed
See detailLes motifs : un outil pour la caractérisation topologique des textes
Longrée, Dominique ULg; Mellet, Sylvie; Luong, Xuan

in Heiden, Serge; Pincemin, Benedicte (Eds.) Actes des JADT 2008, 9èmes Journées internationales d’Analyse statistique des Données Textuelles, Lyon, 12-14 mars 2008, (2008)

Detailed reference viewed: 24 (10 ULg)
Full Text
See detailMicrolensing in binary systems
Ricci, Davide ULg

(2008)

We present an easy way to simulate and fit light curves of microlensing events for the particular case of binary stellar systems with occultation, using semi-automatic graphical interfaces written in IDL ... [more ▼]

We present an easy way to simulate and fit light curves of microlensing events for the particular case of binary stellar systems with occultation, using semi-automatic graphical interfaces written in IDL language. Gravitational microlensing effects are known to induce light amplifications of the background source and, until now, photometry has been the main technique used to study this phenomenon. A good software, capable to fit multiple parameters of the observed light curve of the microlens event, would allow astronomers to obtain important informations about the physical characteristics of the objects studied. The developpement of such a software is focused to some peculiar case, briefly treated in Sec. 1. The software, written following the parametrization described in Sec. 2, is presented in Sec. 3 and 4. [less ▲]

Detailed reference viewed: 20 (8 ULg)
Full Text
Peer Reviewed
See detailVers la création d’un méta-modèle générique de l’information spatiale 3D urbaine
Billen, Roland ULg; Laplanche, François ULg; Zlatanova, Siyka et al

in Revue XYZ (2008), 114(1), 37-42

The need of 3D urban spatial data infrastructures (3D SDI) is now almost commonly accepted. However, their implementation suffers from a lack of standardisation. This is usually due to an underestimation ... [more ▼]

The need of 3D urban spatial data infrastructures (3D SDI) is now almost commonly accepted. However, their implementation suffers from a lack of standardisation. This is usually due to an underestimation of the initial conceptual step, where modelling options should be clearly stated. In this article, we present a modelling ontological approach inspired by our experience in spatial data acquisition techniques. In this ontology, one considers that the universe is composed of free space and occupied space and that their interface is the only measurable feature. On that basis, we present a generic 3D urban spatial information meta-model. This meta-model is compared to the City GML standard through the study of the building object. Expect from some level-ofdetail issues, both models are compatible. [less ▲]

Detailed reference viewed: 132 (29 ULg)
Full Text
Peer Reviewed
See detailA Perturbation Finite Element Method for Modeling Electrostatic MEMS without Remeshing
Boutaayamou, Mohamed ULg; V Sabariego, Ruth ULg; Dular, Patrick ULg

in Proceedings of the 9th International Conference on Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-Systems (EuroSimE2008) (2008)

This paper deals with the coupled electrostatic- mechanical analysis of electrostatically actuated MEMS. An iterative perturbation procedure in conjunction with the finite element method is used to solve ... [more ▼]

This paper deals with the coupled electrostatic- mechanical analysis of electrostatically actuated MEMS. An iterative perturbation procedure in conjunction with the finite element method is used to solve the coupled problem without the need of remeshing the whole electric domain. The method offers the advantage of overcoming degenerated finite elements in the mesh of some electric regions where the deflection of the MEMS moving parts is critical. The actuation of such systems is achieved by applying either an electric voltage or a global charge. [less ▲]

Detailed reference viewed: 48 (25 ULg)
See detailFunctional Analysis and the Finite Element Method
Stainier, Laurent; Tossings, Patricia ULg

Learning material (2008)

Detailed reference viewed: 13 (3 ULg)
Full Text
See detailImagination et connaissance du monde chez Cyrano de Bergerac
Torero-Ibad, Alexandra ULg

in Libertinage et philosophie au XVIIe siècle (2008), 10

Detailed reference viewed: 54 (2 ULg)
Full Text
Peer Reviewed
See detailDemandes et ressources de travail, stress, engagement et intention de quitter : comparaison entre les travailleurs âgés et les jeunes travailleurs
Bertrand, Françoise ULg; Dardenne, Benoît ULg; Hansez, Isabelle ULg

in Pettersen, N.; Boudrias, J. S.; Savoie, A. (Eds.) Entre tradition et innovation, comment transformons-nous l'univers de travail? Actes du 15ème congrès de Psychologie du Travail et des Organisations de Langue Française (2008)

En Belgique, le taux d’emploi des travailleurs âgés est un des plus faibles de toute l’Europe. Cela constitue un problème tant au niveau économique que social (Griffiths, 1997 ; Kilbom, 1999). Cette ... [more ▼]

En Belgique, le taux d’emploi des travailleurs âgés est un des plus faibles de toute l’Europe. Cela constitue un problème tant au niveau économique que social (Griffiths, 1997 ; Kilbom, 1999). Cette nouvelle problématique est le point de départ de recherches visant à identifier ce qui pousse les travailleurs à quitter précocement le lieu de travail. Se basant sur le modèle ‘Job Demands Resources (JDR) Model’ (e.g. Demerouti, Bakker, Nachreiner & Schaufeli, 2001; Schaufeli & Bakker, 2004), une étude a été conduite afin d’identifier les raisons de départ (Griffeth, Hom & Gaertner, 2000). Il s’agit également d’étudier le rôle du stress et de l’engagement dans l’explication de ces retraits précoces. Le but est de comparer un modèle d’explication du turnover pour trois classes d’âges ; les jeunes travailleurs, les travailleurs d’âge moyen et les travailleurs âgés. Un questionnaire a été développé afin d’identifier les raisons de départ des travailleurs. Quatre facteurs de départ sont considérés dans cette dimension trans-générationnelle. Deux d’entre eux concernent les ressources de travail, soit le manque de ressources, le manque de développement personnel, et les deux autres concernent les demandes du travail, soit la pression et les changements organisationnels. Une mesure du stress, de l’engagement et de l’intention de quitter a aussi été inclue. Au total, 11 entreprises belges ont participé à cette enquête, ce qui correspond à 1772 questionnaires. Les résultats montrent que le manque de développement personnel et les changements expliquent directement l’intention de quitter pour les jeunes et les travailleurs d’âge moyen. Par contre, le manque de ressources explique directement l’intention de quitter pour les travailleurs âgés. Le stress et l’engagement jouent un rôle important dans l’explication de l’intention de quitter pour les trois groupes d’âges. La pression et le manque de ressources expliquent le stress. Le manque de ressources, le manque de développement personnel et la pression ont un impact sur l’engagement. Les changements organisationnels n’expliquent pas le stress. Pour les travailleurs âgés, le manque de ressources n’affecte pas l’engagement. En conclusion, le manque de développement personnel et les changements organisationnels ont plus d’impact au début de la carrière et le manque de ressources est un problème qui concerne davantage les travailleurs âgés. L’état psychologique et l’évaluation des conditions de travail sont très importants pour toutes les classes d’âge dans la décision du retrait. [less ▲]

Detailed reference viewed: 301 (16 ULg)
Full Text
Peer Reviewed
See detailAu fil de l'interprétation. L'apport des registres aux logiciels d'analyse qualitative
Lejeune, Christophe ULg

in Schweizerische Zeitschrift für Soziologie = Revue Suisse de Sociologie (2008), 34(3), 593-603

We call register a set of markers (keywords or idiomatic expressions) allowing to spot social phenomena in textual material. The use of registers is common in qualitative sociology. Among various software ... [more ▼]

We call register a set of markers (keywords or idiomatic expressions) allowing to spot social phenomena in textual material. The use of registers is common in qualitative sociology. Among various software functionalities dedicated to textual analysis, registers remains underdeveloped. Through their experiences, first users of the Cassandre qualitative analysis free software illustrate how registers are build and which difficulties are raised. [less ▲]

Detailed reference viewed: 1060 (141 ULg)
See detailChapter6 : Genetic Improvement of Growth
Rougeot, Carole ULg; Mélard, Charles ULg

in Farming Of Eurasian perch. Volume 1: Juvenile production. (2008)

Detailed reference viewed: 15 (3 ULg)
Full Text
Peer Reviewed
See detailIn vivo administration of a PKA type I inhibitor (Rp-8-Br-cAMPS) restores T-cell responses in retrovirus-infected mice
Nayjib, Btissam ULg; Zeddou, Mustapha ULg; Drion, Pierre ULg et al

in Open Immunol journal (2008), 1

Murine AIDS (MAIDS) is caused by infection with the murine leukemia retrovirus RadLV-Rs and is characterized by T-cell anergy and severe immunodeficiency with increased susceptibilty to several ... [more ▼]

Murine AIDS (MAIDS) is caused by infection with the murine leukemia retrovirus RadLV-Rs and is characterized by T-cell anergy and severe immunodeficiency with increased susceptibilty to several experimental opportunistic infections as observed in HIV infection. T cell anergy is associated with an increase of intracellular cAMP level, triggering a multistep pathway involving activation of PKA type I and resulting in inhibition of proximal TCR signaling. We have reviously demonstrated that blocking PKA type I using the selective inhibitor Rp-8-Br-cAMPS, restores T-cell function in vitro in MAIDS as well as in HIV infection. In the present report, we investigated the effect of parenteral administration of Rp-8-Br-cAMPS in mice with MAIDS. We show that the compound is not toxic and partially restores the ex vivo proliferative responses to anti-CD3 mAb, but that it has no effect on the lymphadenopathy and splenomegaly characterizing the MAIDS syndrome. [less ▲]

Detailed reference viewed: 76 (13 ULg)
Full Text
Peer Reviewed
See detailAge and the time lag method
Delhez, Eric ULg; Deleersnijder, Eric

in Continental Shelf Research (2008), 28(8), 1057-1067

The time lag method is one of the most straightforward methods used to estimate transit times from experimental data and is therefore widely used. The transit time between two points is estimated from the ... [more ▼]

The time lag method is one of the most straightforward methods used to estimate transit times from experimental data and is therefore widely used. The transit time between two points is estimated from the analysis of time series taken at these two points that suggest the propagation of a signal from one point to the other. To account for the distortion of the signal during its propagation between the two points an optimum time lag can be estimated by the analysis of the cross-correlation of the two time series. This study clarifies the relation between the transit time estimated by the time lag method and the well-defined concept of the age of a water mass. It is shown, through simplified process models, that the time lag method systematically underestimates the true mean age. The error can be quantified by means of a dimensionless parameter which is the inverse of a Peclet number based on a characteristic length given by the ratio of the velocity of the flow to the frequency of the signal. (c) 2008 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 124 (27 ULg)
Full Text
Peer Reviewed
See detailEvolution of anti-eCG antibodies in response to eCG doses and number of injections. Relation with rabbit does productivity
Theau-Clément, M.; Lebas, F.; Beckers, J. F. et al

in Animal (2008), 2(5), 746-751

The aim of this experiment was to study the kinetics of anti-eCG (equine chorionic gonadotrophin) antibodies in relation to eCG dose (8 or 25 IU) and number of injections (n = 11) in comparison with a ... [more ▼]

The aim of this experiment was to study the kinetics of anti-eCG (equine chorionic gonadotrophin) antibodies in relation to eCG dose (8 or 25 IU) and number of injections (n = 11) in comparison with a control group (no injection), and to relate antibody production to sexual receptivity and productivity of rabbit does. In all, 124 lactating primiparous rabbit does were inseminated every 35 days for a year. Just before eCG injection (48 h before insemination), blood samples were collected from all the does to assay anti-eCG antibodies. The anti-eCG antibody binding rate, regardless of the injected dose, shows that none of the does developed detectable anti-eCG antibodies before the 7th injection. The level of detectable anti-eCG antibodies began to show an increase at the 7th injection and was significant only for the 25 IU dose at the 11th injection. At the end of the experiment, 15% and 39% of does treated with 8 and 25 IU, respectively, developed immunity to eCG (binding rate >6%: higher binding rate of the control group). Consequently, the immune response depends on the eCG dose and on the number of injections. Moreover, productivity of does estimated from the number of weaned rabbits produced per insemination is not influenced by the level of eCG antibodies (7.0 and 6.9 for binding rate <6% and binding rate 6%, respectively). Only 19 inseminations (n = 6 and n = 13 for 8 and 25 IU, respectively) were made on hyperimmune does. Consequently, the immune response to eCG seems to be marginal for rabbit does. Moreover, under the described experimental conditions, reproductive performances of hyperimmune does were not affected [less ▲]

Detailed reference viewed: 32 (2 ULg)
Full Text
See detailDéveloppement d'une Géocodification 3D pour la modélisation du bâti
Kasprzyk, Jean-Paul ULg

Master's dissertation (2008)

Detailed reference viewed: 131 (32 ULg)
Full Text
Peer Reviewed
See detailLa sémiotique et la vie
Badir, Sémir ULg

in Darrault-Harris, Ivan; Fontanille, Jacques (Eds.) Les âges de la vie. Sémiotique de la culture et du temps (2008)

Detailed reference viewed: 14 (0 ULg)
See detailIonospheric Products and Services from the Regional Warning Centers of the International Space Environment Service (ISES) for GNSS Users
Kunches, J.; Terkildsen, M.; Stanislawska, I. et al

Conference (2008)

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailAdvantages of an Energetic Approach to derive the Electro-Mechanical Coupling
Rochus, Véronique ULg

in Sensor Letters (2008), 6(1), 88-96

This paper presents the advantages of a strong coupled formulation derived from the energy to model the electro-mechanical coupling appearing in MEMS. Usually classical softwares use a staggered ... [more ▼]

This paper presents the advantages of a strong coupled formulation derived from the energy to model the electro-mechanical coupling appearing in MEMS. Usually classical softwares use a staggered methodology iterating between two different codes to obtain the solution of the coupled problem. Others use some additional links between the two fields to obtain a stronger coupling. In this research a strong coupled formulation derived from the total energy of the problem is proposed and has been presented by the author in paper.1 In this approach a new formulation of the electrostatic force is obtained and an analytical expression of the tangent stiffness matrix of the whole problem is derived. It has also been shown that this formulation of electrostatic forces provides a better convergence around corner.2 This paper will highlight the advantage to use this method in static, modal and dynamic simulation. Indeed using the tangent stiffness matrix, nonlinear algorithms such as the Riks-Crisfield algorithm may be applied to solve the static nonlinear problem and determine accurately the static pull-in voltage. Moreover, the natural frequencies may be easily computed around each equilibrium positions. The dynamic behaviour of the structure may also be studied and two characteristic parameters are computed: the dynamic pull-in voltage and the dynamic pull-in time. This strong coupled methodology deriving from variational principle may also be used for topology optimisation and extended finite elements. [less ▲]

Detailed reference viewed: 34 (8 ULg)
Full Text
Peer Reviewed
See detailLe medicament du mois. Ivabradine (Procoralan).
LANCELLOTTI, Patrizio ULg

in Revue Médicale de Liège (2008), 63(4), 220-4

Ivabradine (Procoralan), a new If inhibitor which acts specifically and in a dose-dependent manner on the pacemaker activity of the sinoatrial node, is a pure heart rate lowering agent. It slows the ... [more ▼]

Ivabradine (Procoralan), a new If inhibitor which acts specifically and in a dose-dependent manner on the pacemaker activity of the sinoatrial node, is a pure heart rate lowering agent. It slows the diastolic depolarization slope of sinoatrial node cells and reduces heart rate at rest and during exercise. It has shown anti-ischaemic and anti-anginal activity at recommended doses of 5 and 7.5 mg bid in patients with stable angina. Ivabradine is as effective as atenolol and amlodipine to prevent or attenuate exercise-induced ischaemia in these patients. It is well tolerated, with transient visual symptoms being the main drug-related adverse event. These symptoms may be linked to the presence in the retina of ion channels similar to cardiac If channels and did not adversely affect the tolerability of the drug for most patients. In Belgium, ivabradine is currently reimbursed in patients with stable angina and normal sinus rhythm who do not tolerate beta-blockers and non-dihydropyridine calcium antagonists or in whom these treatments are contra-indicated. [less ▲]

Detailed reference viewed: 10 (0 ULg)
See detailCalifornia Verbal Learning Test (CVLT) - Adaptation française
Hahn-Barma; Adam, Stéphane ULg

in Hugonot-Diener, Laurence; Barbeau, Emmanuel; Michel, Bernard (Eds.) et al GREMOIRE: Tests et échelles de la maladie d'Alzheimer et des syndromes apparentés (2008)

Detailed reference viewed: 147 (5 ULg)
See detailHACCP organoleptique: guide pratique
Delacharlerie, Sophie ULg; de Biourge, Sandrine; Chèné, Christine et al

Book published by Les Presses Agronomiques de Gembloux asbl (2008)

Detailed reference viewed: 104 (12 ULg)