References of "2007"
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See detailThe Dusty Young Universe: photometry and spectroscopy of quasars at z > 2
Meisenheimer, K.; Hutsemekers, Damien ULg; Tacconi, L. et al

Poster (2007)

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See detailFormer à l'information ... et ailleurs ?
Pochet, Bernard ULg

in Cadet, Frédéric (Ed.) Actes du séminaire national : De l’information à la connaissance, Poitiers, 28-30 août 2006 (2007)

This paper intend to propose to the participants of the Summer School to see examples and models from abroad putting into perspective their own practices to strengthen or, hopefully, provoke questions ... [more ▼]

This paper intend to propose to the participants of the Summer School to see examples and models from abroad putting into perspective their own practices to strengthen or, hopefully, provoke questions. Will be discussed during the briefing, the Belgian situation and EduDOC group, patterns of training in French-speaking Belgium, a draft assessment of skills, the "information commons", a new librarie's service and the problem based learning ", showing the need for an institutional policy. [less ▲]

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See detailEvaluation des troubles de la mémoire et de l'attention dans le cadre de l'examen neuropsychologiques
Catale, Corinne ULg; Meulemans, Thierry ULg

Conference given outside the academic context (2007)

La formation suivra un double objectif : d'une part, les conceptions actuelles du fonctionnement mnésique et attentionnel seront présentées, en mettant particulièrement l'accent sur les données obtenues ... [more ▼]

La formation suivra un double objectif : d'une part, les conceptions actuelles du fonctionnement mnésique et attentionnel seront présentées, en mettant particulièrement l'accent sur les données obtenues auprès de patients cérébro-lésés; d'autre part, la logique générale de l'évaluation neuropsychologique des difficultés mnésiques et attentionnelles sera abordée. Notre objectif sera donc de montrer en quoi la neuropsychologie a contribué à notre compréhension des mécanismes de mémoire et d’attention. Par ailleurs, l’influence qu’ont pu avoir tous ces travaux sur les pratiques cliniques en (neuro)psychologie (et en particulier en neuropsychologie de l’enfant) sera également soulignée. La formation s’appuiera très largement sur des illustrations et sur la présentation de cas concrets. Des questions pratiques intéressant directement les psychologues de PMS seront également abordées (quelles informations sur la mémoire et l’attention peut-on tirer d’un profil de WISC ? quand faut-il envisager d’orienter un enfant vers une consultation spécialisée en neuropédiatrie ou en neuropsychologie ?, etc.). Au terme de cette formation, dont l’objectif n’est en aucun cas de procurer des « recettes » et autres ficelles applicables telles quelles dans la classe ou le milieu scolaire, le participant devrait être à même de poser un regard plus nuancé et plus averti sur les difficultés de mémoire et d’attention que peut présenter un enfant, et de disposer ainsi de meilleures bases pour décider de la nature du suivi ou de l’orientation à proposer. [less ▲]

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See detailPGPR-induced systemic resistance: activity of amphiphilic elicitors and structural analogues on different plant species
Jourdan, Emmanuel ULg; Ongena, MARC ULg; Adam, Akram et al

in Bulletin OILB/SROP = IOBC/WPRS Bulletin (2007), 30

Some non pathogenic microorganisms can induce disease resistance mechanisms expressed systemically in the host plant thereby rendering it less susceptible to further attack by pathogens. In this study, we ... [more ▼]

Some non pathogenic microorganisms can induce disease resistance mechanisms expressed systemically in the host plant thereby rendering it less susceptible to further attack by pathogens. In this study, we have investigated the role of bacterial compounds as elicitors of the induced systemic resistance. Lipopeptides, especially surfactin and fengycin, produced by Bacillus subtilis strains are able to stimulate bean and tomato plants and decrease the impact of subsequent pathogen infection. Preliminary experiments on tobacco cells showed that surfactine induces some modifications in the phenylpropanoid pathway. Amphiphilic properties of lipopeptides and NABD, the elicitor isolated from Pseudomonas putida strain BTP1, could be responsible for their activities on plant cells [less ▲]

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See detailInfluence of controlled immediate loading and implant design on peri-implant bone formation.
Vandamme, Katleen; Naert, Ignace; Geris, Liesbet ULg et al

in Journal of Clinical Periodontology (2007), 34(2), 172-81

AIM: Tissue formation at the implant interface is known to be sensitive to mechanical stimuli. The aim of the study was to compare the bone formation around immediately loaded versus unloaded implants in ... [more ▼]

AIM: Tissue formation at the implant interface is known to be sensitive to mechanical stimuli. The aim of the study was to compare the bone formation around immediately loaded versus unloaded implants in two different implant macro-designs. MATERIAL AND METHODS: A repeated sampling bone chamber with a central implant was installed in the tibia of 10 rabbits. Highly controlled loading experiments were designed for a cylindrical (CL) and screw-shaped (SL) implant, while the unloaded screw-shaped (SU) implant served as a control. An F-statistic model with alpha=5% determined statistical significance. RESULTS: A significantly higher bone area fraction was observed for SL compared with SU (p<0.0001). The mineralized bone fraction was the highest for SL and significantly different from SU (p<0.0001). The chance that osteoid- and bone-to-implant contact occurred was the highest for SL and significantly different from SU (p<0.0001), but not from CL. When bone-to-implant contact was observed, a loading (SL versus SU: p=0.0049) as well as an implant geometry effect (SL versus CL: p=0.01) was found, in favour of the SL condition. CONCLUSIONS: Well-controlled immediate implant loading accelerates tissue mineralization at the interface. Adequate bone stimulation via mechanical coupling may account for the larger bone response around the screw-type implant compared with the cylindrical implant. [less ▲]

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See detaileCole - Projet d'apprentissage et de remédiation en ligne
Vreeswijk, Valérie ULg; Javaux, Hubert; Reegers, Thésèse et al

Report (2007)

Recherche-développement consacrée à la conception d'un dispositif en ligne susceptible de soutenir l'autonomisation des apprenants dans le déploiement des compétences lire et écrire en français.

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See detailValidation of MIPAS HNO3 operational data
Wang, D. Y.; Hopfner, Michael; Blom, C. E. et al

in Atmospheric Chemistry and Physics (2007), 7(18), 4905-4934

Nitric acid (HNO3) is one of the key products that are operationally retrieved by the European Space Agency (ESA) from the emission spectra measured by the Michelson Interferometer for Passive Atmospheric ... [more ▼]

Nitric acid (HNO3) is one of the key products that are operationally retrieved by the European Space Agency (ESA) from the emission spectra measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT. The product version 4.61/4.62 for the observation period between July 2002 and March 2004 is validated by comparisons with a number of independent observations from ground-based stations, aircraft/balloon campaigns, and satellites. Individual HNO3 profiles of the ESA MIPAS level-2 product show good agreement with those of MIPAS-B and MIPAS-STR (the balloon and aircraft version of MIPAS, respectively), and the balloon-borne infrared spectrometers MkIV and SPIRALE, mostly matching the reference data within the combined instrument error bars. In most cases differences between the correlative measurement pairs are less than 1 ppbv (5-10%) throughout the entire altitude range up to about 38 km (similar to 6 hPa), and below 0.5 ppbv (15-20% or more) above 30 km (similar to 17 hPa). However, differences up to 4 ppbv compared to MkIV have been found at high latitudes in December 2002 in the presence of polar stratospheric clouds. The degree of consistency is further largely affected by the temporal and spatial coincidence, and differences of 2 ppbv may be observed between 22 and 26 km (similar to 50 and 30 hPa) at high latitudes near the vortex boundary, due to large horizontal inhomogeneity of HNO3. Similar features are also observed in the mean differences of the MIPAS ESA HNO3 VMRs with respect to the ground-based FTIR measurements at five stations, aircraft-based SAFIRE-A and ASUR, and the balloon campaign IBEX. The mean relative differences between the MIPAS and FTIR HNO3 partial columns are within +/- 2%, comparable to the MIPAS systematic error of similar to 2%. For the vertical profiles, the biases between the MIPAS and FTIR data are generally below 10% in the altitudes of 10 to 30 km. The MIPAS and SAFIRE HNO3 data generally match within their total error bars for the mid and high latitude flights, despite the larger atmospheric inhomogeneities that characterize the measurement scenario at higher latitudes. The MIPAS and ASUR comparison reveals generally good agreements better than 10-13% at 20-34 km. The MIPAS and IBEX measurements agree reasonably well (mean relative differences within +/- 15%) between 17 and 32 km. Statistical comparisons of the MIPAS profiles correlated with those of Odin/SMR, ILAS-II, and ACE-FTS generally show good consistency. The mean differences averaged over individual latitude bands or all bands are within the combined instrument errors, and generally within 1, 0.5, and 0.3 ppbv between 10 and 40 km (similar to 260 and 4.5 hPa) for Odin/SMR, ILAS-II, and ACE-FTS, respectively. The standard deviations of the differences are between 1 to 2 ppbv. The standard deviations for the satellite comparisons and for almost all other comparisons are generally larger than the estimated measurement uncertainty. This is associated with the temporal and spatial coincidence error and the horizontal smoothing error which are not taken into account in our error budget. Both errors become large when the spatial variability of the target molecule is high. [less ▲]

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See detailSmall-scale spatial associations between Artemisia frigida and Potentilla acaulis at zero, light, medium and heavy grazing intensities with sheep.
Liu, Z.; Li, Z.; Dong, M. et al

in Applied Vegetation Science (2007), 10(1), 139-148

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See detailWeak ferromagnetism in Fe1-xCoxSb2
Hu, Rongwei; Hermann, Raphaël ULg; Grandjean, François-Xavier ULg et al

in Physical Review b (2007), 76(22),

Weak ferromagnetism in Fe1-xCoxSb2 is studied by magnetization and Mossbauer measurements. A small spontaneous magnetic moment of the order of similar to 10(-3)mu(B) appears along the b axis for 0.2 <= x ... [more ▼]

Weak ferromagnetism in Fe1-xCoxSb2 is studied by magnetization and Mossbauer measurements. A small spontaneous magnetic moment of the order of similar to 10(-3)mu(B) appears along the b axis for 0.2 <= x <= 0.4. Based on a structural analysis, we argue against extrinsic sources of weak ferromagnetism. We discuss our results in the framework of the nearly magnetic electronic structure of the parent compound FeSb2. [less ▲]

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See detailRecent land dynamics in the Tonle Sap Flood Plain and its impacts on the local communities
Diepart, Jean-Christophe ULg

in Tonle Sap Biosphere Reserve Bulletin (2007), 3

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See detailThe Aurignacian in the Zagros Region: new research at Yafteh Cave, Lorestan, Iran
Otte, Marcel ULg; Biglari, Fereidoun; Flas, Damien ULg et al

in Antiquity (2007), 81(311), 82-96

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See detailNatural antibody--complement dependent neutralization of bovine herpesvirus 4 by human serum
Machiels, Bénédicte ULg; Gillet, Laurent ULg; Brito, Sieberth Do Nascimento et al

in Microbes & Infection (2007), 9(14-15), 1530-1537

In contrast to most gammaherpesviruses, Bovine herpesvirus 4 (BoHV-4) has a broad range of host species both in vitro and in vivo. Several in vitro studies demonstrated that some human cell lines are ... [more ▼]

In contrast to most gammaherpesviruses, Bovine herpesvirus 4 (BoHV-4) has a broad range of host species both in vitro and in vivo. Several in vitro studies demonstrated that some human cell lines are sensitive or even permissive to BoHV-4. These observations led to the hypothesis that cross-species transmission of BoHV-4 could lead to human infections. In the present study, we investigate the sensitivity of BoHV-4 to neutralization by naïve human sera in order to determine if humans exhibit innate anti-viral activities against this virus. Our results demonstrate that human sera from naïve individuals, in contrast to the sera of naïve subjects from various animal species, neutralize BoHV-4 efficiently. A series of complementary experiments were performed to unravel the mechanism(s) of this neutralization. The data obtained in this study demonstrates that human serum neutralizes BoHV-4 in a complement dependent manner activated by natural antibodies raised against the Galalpha1-3Galbeta1-4GlcNAc-R epitope expressed by bovine cells [less ▲]

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See detailRelevance of active faulting and seismicity studies to assessments of long-term earthquake activity and maximum magnitude in intraplate northwest Europe, between the Lower Rhine Embayment and the North Sea
Camelbeeck, Thierry; Vanneste, Kris; Alexandre, Pierre ULg et al

in Stein, S.; Mazzotti, S. (Eds.) Continental Intraplate Earthquakes: Science, Hazard and Policy Issues (2007)

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See detailGlucosamine and chondroitin sulfate as therapeutic agents for knee and hip Osteoarthritis
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Drugs & Aging (2007), 24(7), 573-580

Osteoarthritis (OA), the most common form of arthritis, is a public health problem throughout the world. Several entities have been carefully investigated for the symptomatic and structural management of ... [more ▼]

Osteoarthritis (OA), the most common form of arthritis, is a public health problem throughout the world. Several entities have been carefully investigated for the symptomatic and structural management of OA. This review evaluates published studies of the effect of glucosamine salts and chondroitin sulfate preparations on the progression of knee or hip OA. Despite multiple double-blind, controlled clinical trials of the use of glucosamine and chondroitin sulfate in OA, controversy regarding the efficacy of these agents with respect to symptomatic improvement remains. Several potential confounders, including placebo response, use of prescription medicines versus over-the-counter pills or food supplements, or use of glucosamine sulfate versus glucosamine hydrochloride, may have relevance when attempting to interpret the seemingly contradictory results of different clinical trials. The National Institutes of Health-sponsored GAIT (Glucosamine/chondroitin Arthritis Intervention Trial) compared placebo, glucosamine hydrochloride, chondroitin sulfate, a combination of glucosamine and chondroitin sulfate and celecoxib in a parallel, blinded 6-month multicentre study of patients with knee OA. This trial showed that glucosamine hydrochloride and chondroitin sulfate alone or in combination did not reduce pain effectively in the overall group of patients with OA of the knee. However, exploratory analyses suggest that the combination of glucosamine hydrochloride and chondroitin sulfate may be effective in the subgroup of patients with moderate-to-severe knee pain. For decades, the traditional pharmacological management of OA has been mainly symptomatic. However, in recent years, several randomised controlled studies have assessed the structure-modifying effect of glucosamine sulfate and chondroitin sulfate using plain radiography to measure joint space narrowing over years. There is some evidence to suggest a structure-modifying effect of glucosamine sulfate and chondroitin sulfate. On the basis of the results of recent randomised controlled trials and meta-analyses, we can conclude that glucosamine sulfate (but not glucosamine hydrochloride) and chondroitin sulfate have small-to-moderate symptomatic efficacy in OA, although this is still debated. With respect to the structure-modifying effect, there is compelling evidence that glucosamine sulfate and chondroitin sulfate may interfere with progression of OA. [less ▲]

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See detailSociétal
Durand, Pascal ULg

in Durand, Pascal (Ed.) Les Nouveaux Mots du Pouvoir. Abécédaire critique (2007)

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