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See detailEtude in vitro de l’axe physiopathologique os-cartilage dans l’arthrose : implication de l’interleukin-6
Henrotin, Yves ULg; Kaut, Elisabeth; Deberg, Michelle ULg et al

in Revue du Rhumatisme (2005), 72(10-11), 958-986

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See detailGenomic screening and replication in one data set in family-based association testing
Lange, C.; Van Steen, Kristel ULg; McQueen, M. et al

in Conference Abstract Book (2005)

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See detailDe l'enseignement à l'apprentissage : le paradigme cognitif en didactique des langues
Defays, Jean-Marc ULg

in Revue Parole (2005), 34-35-36

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See detailIndirect defence of aphid infested potato : role of terpenes on Episyrphus balteatus behaviour
Francis, Frédéric ULg; Harmel, Nicolas; Almohamad, Raki et al

in Abstract book (2005)

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See detailChemical abundances in 43 metal-poor stars
Gustafsson, Bengt; Asplund, Martin; Edvardsson, Bengt et al

in Hill, V.; François, P.; Primas, F. (Eds.) From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution (2005)

We have derived abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Fe, Ni and Ba for 43 metal-poor field stars, mostly stars at the turn-off point and on the subgiant branch, in the interval {-}3.0{[Fe/H ... [more ▼]

We have derived abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Fe, Ni and Ba for 43 metal-poor field stars, mostly stars at the turn-off point and on the subgiant branch, in the interval {-}3.0{[Fe/H]{. The analysis is differential relative to the Sun. Oxygen abundances, with consideration of NLTE effects, were derived from the OI 777.4 nm triplet lines. We find [O/Fe] to gradually increase with decreasing [Fe/H], though considerably slower than has earlier been obtained from OH lines in the UV. A scatter in [O,Mg,Ca,Ti/Fe] at a given [Fe/H] is found and we argue that this scatter is partly real. The deviations from the mean trends of abundance ratios vs [Fe/H] are found to correlate in non-trivial ways for different abundances. Similar trends are found from results of accurate studies by other groups. This seems to give further evidence for the hypothesis that the stars once formed in different subsystems, with different star-formation rates.The paper is in press in A&A, may be obtained as astro-ph/0505118. [less ▲]

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See detailLes bassins scolaires : de l'idée au projet : rapport final de la recherche
Delvaux, Bernard; Demeuse, Marc ULg; Dupriez, V. et al

Report (2005)

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See detailA Mossbauer spectral study of some iron nitride-based nanocomposites prepared by ball milling
Grandjean, Fernande ULg; Hermann, Raphaël ULg; Long, G. J. et al

in Journal of Magnetism & Magnetic Materials (2005), 292

Powder mixtures of (FeyN)(x) and (Al2O3)(1-x) or (SiO2)(1-x) with x = 0.2 and 0.6 and y = 3.8 have been ball milled for 4, 8, 16, 32, 64, and 128 h and their magnetic properties and Mossbauer spectra have ... [more ▼]

Powder mixtures of (FeyN)(x) and (Al2O3)(1-x) or (SiO2)(1-x) with x = 0.2 and 0.6 and y = 3.8 have been ball milled for 4, 8, 16, 32, 64, and 128 h and their magnetic properties and Mossbauer spectra have been measured. The 5 and 295 K saturation magnetizations decrease with increasing milling time as a result of decreasing particle sizes. Fits with the Langevin function of the field dependence of the magnetization yield particle sizes that are slightly smaller than those determined from a Scherrer analysis of the broadening of the X-ray diffraction peaks. The Mossbauer spectra have been fit with a distribution of hyperfine fields between 0 and 40 T and the peaks in the distribution assigned to the different iron nitride phases present in the nanocomposites. This analysis of the Mossbauer spectra indicates that the gamma'-Fe4N phase present in FeyN is transformed into epsilon-Fe3+xN and alpha-iron by the milling process. The weighted average field decreases and the weighted average isomer shift increases with milling time, as expected for the simultaneous effects of size reduction, the above phase transformation, and mixing with the oxides. A peak in the hyperfine field distribution at 4 T indicates the presence of small superparamagnetic particles, a presence which is also confirmed by the temperature dependence of the Mossbauer spectra and the failure of the magnetization to saturate even at applied fields of 5.5T. (c) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailFinite element modeling of incremental forming of aluminium sheets
He, S.; Van Bael, A.; Van Houtte, P. et al

in Advanced Materials Research (2005), 6/8

Incremental forming is an innovative and flexible sheet metal forming technology for small batch production and prototyping, which does not require any dedicated die or punch to form a complex shape. This ... [more ▼]

Incremental forming is an innovative and flexible sheet metal forming technology for small batch production and prototyping, which does not require any dedicated die or punch to form a complex shape. This paper investigates the process of single point incremental forming of an aluminum cone with a 50-degree wall angle both experimentally and numerically. Finite element models are established to simulate the process. The output of the simulation is given in terms of final geometry, the thickness distribution of the product, the strain history and distribution during the deformation as well as the reaction forces. Comparison between the simulation results and the experimental data is made. [less ▲]

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See detailLes acquis scolaires des filles et des garçons en lecture, en mathématiques et en sciences
Blondin, Christiane ULg; Lafontaine, Dominique ULg

in Education et Francophonie (2005), XXXIII(1), 37-57

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See detailThe Middle-Devonian proto-ovule Runcaria heinzelinii Stockmans 1968
Gerrienne, Philippe ULg; Meyer-Berthaud, B.; Fairon-Demaret, Muriel ULg et al

Conference (2005)

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See detailLes invertébrés des carrières souterraines de craie de la Montagne Saint-Pierre (Province de Liège, Belgique). Note préliminaire
Dethier, Michel; Willems, Luc ULg

in Notes Fauniques de Gembloux (2005), 57

During the 1930’s, Leruth collected 145 species in the underground chalk quarries at the Montagne Saint-Pierre. None was troglobitic. To evaluate the biological interest of the sites and the faunal drift ... [more ▼]

During the 1930’s, Leruth collected 145 species in the underground chalk quarries at the Montagne Saint-Pierre. None was troglobitic. To evaluate the biological interest of the sites and the faunal drift 70 years after, we have undertaken in 2004 a new faunistic survey. [less ▲]

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See detailUn peu de vocabulaire
Baiwir, Esther ULg

in Lempereur, Françoise; Bertha, A. (Eds.) 100 ans de menuiserie dans l'arrondissement de Verviers (2005)

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See detailRecommendations for the registration of agents to be used in the prevention and treatment of glucocorticoid-induced osteoporosis: updated recommendations from the Group for the Respect of Ethics and Excellence in Science.
Abadie, Eric ULg; Devogelaer, Jean-Pierre; Ringe, Johann D. et al

in Seminars in Arthritis & Rheumatism (2005), 35(1), 1-4

OBJECTIVES: The Group for the Respect and Excellence in Science (GREES) has reviewed and updated their recommendations for clinical trials to evaluate the efficacy and safety of new chemical entities to ... [more ▼]

OBJECTIVES: The Group for the Respect and Excellence in Science (GREES) has reviewed and updated their recommendations for clinical trials to evaluate the efficacy and safety of new chemical entities to be used in the treatment and prevention of glucocorticoid-induced osteoporosis (GIOP). METHODS: Consensus discussion of the committee. RESULTS: With the exception of steroid use posttransplantation, there is no need to differentiate between underlying diseases. Prevention and treatment for GIOP are dependent on exposure to glucocorticoids rather than T-scores as in postmenopausal osteoporosis (PMO). If fracture data are obtained for PMO, it need not be repeated for GIOP, relying instead on bone mineral density (BMD) trials of at least 1 year. GREES recommends several changes in the previous guidance for GIOP. The committee saw no need to repeat preclinical studies if those have been previously done to assure bone quality in PMO. Similarly, phase I and phase II trials, if careful dose selection has been done for PMO, should not be repeated. The "prevention" and "treatment" claims should remain. Since the most recent evidence suggests significant increase in fracture risk for daily doses of prednisone of 5 mg/day or equivalent, clinical trials should concentrate on patients receiving at least this daily dosage. The emergence of bisphosphonates as the reference treatment, together with the rapid bone loss and high fracture incidence in glucocorticoid users, necessitates recommending a noninferiority trial design with lumbar spine BMD as the primary endpoint after 1 year. CONCLUSIONS: Registration of new chemical entities to be used in the management of GIOP should be granted, based on a 1-year noninferiority trial, using BMD as primary outcome and alendronate or risedronate as comparator. Demonstration of antifracture efficacy should have been previously demonstrated in PMO. [less ▲]

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See detailUpdate of diagnostic preoperative images using low-field interventional MRI for neurosurgery: rigid-body registration
Kavec, Martin; Wikler, David; Phillips, Christophe L. et al

Conference (2005)

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See detailLong-term care insurance and optimal taxation for altruistic children
Jousten, Alain ULg; Lipszyc, B.; Marchand, Maurice et al

in Finanzarchiv (2005), 61(1), 1-18

We model long-term care insurance in an optimal taxation framework. Every adult decides upon the amount and type of care he purchases for his dependent parent. We consider two alternatives: nursing-home ... [more ▼]

We model long-term care insurance in an optimal taxation framework. Every adult decides upon the amount and type of care he purchases for his dependent parent. We consider two alternatives: nursing-home care provided by the government, and home care paid by the child with some lump-sum subsidy by the government. The only source of information asymmetry is the government's inability to observe the degree of altruism of the adult child for his/her parent. Further tax collection entails some social costs. In such a second-best setting, we show that the quality of institutional care has to be kept relatively low and that compared to altruistic children, nonaltruistic ones enjoy a high level of consumption. [less ▲]

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See detailMorris, Franquin, Peyo et le dessin animé
Capart, Philippe; Dejasse, Erwin ULg

Book published by L'An 2 - 1ère édition (2005)

Before becoming famous comic artists of the magazine "Spirou" and Dupuis publishing, Morris, Franquin and Peyo met each other in a small animated cartoon studio : CBA. Not well known, these beginnings ... [more ▼]

Before becoming famous comic artists of the magazine "Spirou" and Dupuis publishing, Morris, Franquin and Peyo met each other in a small animated cartoon studio : CBA. Not well known, these beginnings have deeply influenced their future creations. This book shows the basic role of animated cartoon into the building of their creative genius. [less ▲]

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See detailIntegrated optical components on atom chips
Eriksson, S.; Trupke, Michael; Powell, H. F. et al

in The European Physical Journal D (2005), 35(1), 135--139

We report on the integration of small-scale optical components into silicon wafers for use in atom chips. We present an on-chip fibre-optic atom detection scheme that can probe clouds with small atom ... [more ▼]

We report on the integration of small-scale optical components into silicon wafers for use in atom chips. We present an on-chip fibre-optic atom detection scheme that can probe clouds with small atom numbers. The fibres can also be used to generate microscopic dipole traps. We describe our most recent results with optical microcavities and show that a sufficiently high finesse can be achieved to enable single-atom detection on an atom chip. The key components have been fabricated by etching directly into the atom chip silicon substrate. [less ▲]

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