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See detailNon-invasive assessment of airway responsiveness in healthy and allergen-sensitised cats by use of barometric whole body plethysmography
Kirschvink, N.; Leemans, Jérôme ULiege; Delvaux, François et al

in Veterinary Journal (2007), 173(2), 343-352

This study aimed at determining whether airway responsiveness (AR) tests performed by use of barometric whole body plethysmography (BWBP) were repeatable in cats and to what extent AR was affected by the ... [more ▼]

This study aimed at determining whether airway responsiveness (AR) tests performed by use of barometric whole body plethysmography (BWBP) were repeatable in cats and to what extent AR was affected by the nebulization protocol used, the age of the animals, the inflammatory status of the airways and prior bronchodilator treatment. Repeatability of AR was tested on two occasions in 30 healthy cats. The concentration of carbachol inducing a 300% increase of the enhanced pause (Penh) - an estimator of airflow limitation - was calculated (C-Penh300) and did not differ significantly between the two tests (0.035 +/- 0.017% compared to 0.034 +/- 0.016%) and was significantly and positively correlated. The comparison between rapidly and slowly increasing carbachol concentrations was performed in ten healthy cats and showed a significantly lower C-Penh300 (%) when slowly increasing concentrations were used (0.037 +/- 0.013% compared to 0.039 +/- 10.015%, P < 0.05). A significant age-related increase of C-Penh300 was evidenced by performing AR tests in 15 healthy cats at 12, 18, 24 and 30 months (12 months: 0.026 +/- 0.008%, 18 months: 0.031 +/- 0.009%, 24 months: 0.038 +/- 0.01%, 30 months: 0.043 +/- 0.014%, P < 0.05). C-Penh300 significantly decreased in 12 Ascaris suum-sensitised cats after allergen exposure (0.026 +/- 0.016% compared to 0.033 +/- 0.016%, P < 0.05) and was negatively correlated with the granulocyte percentage of bronchoalveolar lavage fluid (r = -0.36, P < 0.01). Compared with a placebo inhalation, pretreatment with inhaled salbutamol significantly increased C-Penh300 in four healthy cats (0.093 +/- 0.021% compared to 0.036 +/- 0.004%, P < 0.05). This study provides evidence that AR determination by use of BWBP is promising as non-invasive indicator of lower airway inflammation or for monitoring response to bronchodilator treatment. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailEffects of attention on emotional face processing in depression : a functional MRI study
Desseilles, Martin; Maquet, Pierre ULiege; Dang Vu, Thien Thanh et al

Poster (2007)

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See detailDe la séparation des pouvoirs à l'espace public démocratique
Herla, Anne ULiege

Article for general public (2007)

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See detailManipulation of the vortex motion in nanostructured ferromagnetic/superconductor hybrids
Silhanek, Alejandro ULiege; Gillijns, W.; Moshchalkov, V. V. et al

in Applied Physics Letters (2007), 90(18),

The authors investigate the rectified motion of vortices in superconducting films deposited on top of a close-packed array of open in-plane magnetized triangular micromagnets. The dc voltage induced by ... [more ▼]

The authors investigate the rectified motion of vortices in superconducting films deposited on top of a close-packed array of open in-plane magnetized triangular micromagnets. The dc voltage induced by the vortex drift under an ac excitation is recorded for three different magnetic configurations of the triangles. When the magnetic elements are in the as-grown state a rectification signal which reverses sign when the field changes polarity is observed. In contrast to that, when the array of triangles is magnetized the observed rectification effect is independent of the field polarity and can be reverted by reorienting the magnetization of the micromagnets. (C) 2007 American Institute of Physics. [less ▲]

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See detailCure d’incontinence urinaire masculine par prothèse sous-bulbaire trans-obturatrice in-out
de Leval, Jean ULiege; Bonnet, Pierre ULiege; Hamida, Wissem et al

Conference (2007)

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See detailMechanical constitutive framework for thermal effects on unsaturated soils.
François, Bertrand ULiege; Nuth, Mathieu; Laloui, Lyesse

in Proceeding of the 10th Int. Symp. on Numerical Models in Geomechanics, NUMOG X (2007)

Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and suction effects. The ... [more ▼]

Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and suction effects. The underground waste disposal is one such critical problem. Until now, these two environmental loadings have often been considered independently. This paper proposes a new unified thermo-mechanical framework for unsaturated soils based on thermo-hydro-mechanical (THM) experimental evidence on cohesive soils. The Bishop effective stress framework is adopted to represent the stress state in the soil in a unified fashion. This constitutive context based on the evolution of two key parameters (the preconsolidation pressure and the suction air-entry value) makes it possible to represent the main features of the thermo-mechanical behaviour of unsaturated soils. [less ▲]

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See detailA perturbation finite element method for modeling moving conductive and magnetic regions without remeshing
Dular, Patrick ULiege; V Sabariego, Ruth ULiege

in COMPEL (2007), 26(3), 700-711

Purpose - To develop a sub-domain perturbation technique for efficiently modeling moving systems in magnetodynamics with a magnetic field h-conform finite element (FE) formulation. Design/methodology ... [more ▼]

Purpose - To develop a sub-domain perturbation technique for efficiently modeling moving systems in magnetodynamics with a magnetic field h-conform finite element (FE) formulation. Design/methodology/approach - A reference problem is first solved in a global mesh excluding some moving regions and thus avoiding the inclusion of their meshes. Its solution gives the sources for a sequence of perturbation problems with the supplementary moving magnetic and conductive regions. Each of these sub-problems requires an appropriate proper volume mesh of the associated moving region and its surrounding region, with no need of interconnection. The solutions are transferred from one problem to the other through projections of source fields between meshes. Findings - The consideration of sub-problems and associated sources, in a sequence of perturbation problems, leads to a significant speed-up of the repetitive solutions in analyses of moving systems. A free movement in any direction can be considered with no need of remeshing. Originality/value - When working with the perturbation fields, the volume sources can be limited to the moving regions, what allows for homogeneous perturbation boundary conditions and reduces the computational efforts for projecting and evaluating the sources. The curl-conformity of the unknown magnetic field is preserved during the whole process thanks to the use of edge FEs for both the magnetic field and the intermediate source quantities. The sub-problem approach also gives an easy way to directly express the time derivatives in moving frames. [less ▲]

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See detailDigital Imaging
Verly, Jacques ULiege

Scientific conference (2007)

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See detailGilles Hayne, le duc de Neuburg et Biagio Marini
Vendrix, Philippe ULiege; Corswarem, Emilie ULiege; Bianco, Aurelio

in Studi Musicali (2007), XXXVI(2), 363-441

Cet article consiste en l’édition commentée d’une abondante correspondance tenue entre l’un des compositeurs liégeois majeurs du XVIIe siècle, Gilles Hayne et son mécène, le comte palatin du Rhin et duc ... [more ▼]

Cet article consiste en l’édition commentée d’une abondante correspondance tenue entre l’un des compositeurs liégeois majeurs du XVIIe siècle, Gilles Hayne et son mécène, le comte palatin du Rhin et duc de Neubourg, Wolfgang-Wilhelm, figure importante de la vie politique et culturelle du Saint-Empire. Outre ses fonctions de Surintendant de la musique du duc, Hayne s’illustre comme Maître de chapelle du prince-évêque Ferdinand de Bavière, et comme Grand chantre de la collégiale Saint-Jean de Liège. La correspondance jette un éclairage sur le mécénat aristocratique durant les premières décennies du XVIIe siècle dans le Saint-Empire et sur les échanges noués entre Liège et le duché de Neubourg, l’un des rares îlots de relative quiétude en cette période pour la moins troublée. De nombreux artistes bénéficient du mécénat du duc de Neubourg, de van Dyck à Rubens, de Hayne à Biagio Marini, autre personnalité importante de l’Europe musicale mise en évidence par la correspondance. [less ▲]

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See detailMuscle energetics in exercising horses
Votion, Dominique ULiege; Navet, Rachel ULiege; Lacombe, A. et al

in Equine & Comparative Exercise Physiology (2007), 4

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See detailLocal Second Gradient Models and Damage Mechanics: 1D Post-Localization Studies in Concrete Specimens
Kotronis, Panagiotis; Collin, Frédéric ULiege; Bésuelle, Pierre et al

in Exadaktylos, G.; Vardoulakis, Ioannis (Eds.) Bifurcations, Instabilities, Degradation in Geomechanics (2007)

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See detailSuperconducting microrings as magnetic pinning centers
Gillijns, W.; Silhanek, Alejandro ULiege; 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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See detailPrésentation D-STAR - Micro-satellite (Leodium) & station radio-amateur ULg
Halbach, Luc; Verly, Jacques ULiege

Scientific conference (2007)

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See detailThe impact and rotational light curves of Comet 9P/Tempel 1
Manfroid, Jean ULiege; Hutsemekers, Damien ULiege; Jehin, Emmanuel ULiege et al

in Icarus: International Journal of Solar System Studies (2007), 191

UVES and HIRES high-resolution spectra of Comet 9P/Tempel 1 are used to investigate the impact and rotational light curves of various species with a view toward building a simple model of the distribution ... [more ▼]

UVES and HIRES high-resolution spectra of Comet 9P/Tempel 1 are used to investigate the impact and rotational light curves of various species with a view toward building a simple model of the distribution and activity of the sources. The emission by OH, NH, CN, C[SUB]3[/SUB], CH, C[SUB]2[/SUB], NH[SUB]2[/SUB], and OI, are analyzed, as well as the light scattered by the dust. It is found that a simple model reproduces fairly well the impact light curves of all species combining the production of the observed molecules and the expansion of the material throughout the slit. The impact light curves are consistent with velocities of 400 600 m/s. Their modeling requires a three-step dissociation sequence ``Grand-Parent --> Parent --> Daughter'' to produce the observed molecules. The rotational light curve for each species is explained in terms of a single model with three sources. The dust component can however not easily be explained that way. [less ▲]

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See detailIonospheric and geomagnetic conditions during periods of degraded GPS position accuracy : 2. RTK events during disturbed and quiet geomagnetic conditions
Warnant, René ULiege; Kutiev, Ivan; Marinov, Pencho et al

in Advances in Space Research (2007), 39(5), 881-888

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See detailLes thérapies innovantes au CHU dans les maladies inflammatoires chroniques de l'intestin (MICI)
Belaiche, Jacques ULiege; Chapelier, Nathalie ULiege; Wertz, Sylvie ULiege et al

in Revue Médicale de Liège (2007), 62 Spec No

Inflammatory bowel diseases (IBD), Crohn's disease and ulcerative colitis are frequent illnesses in western countries. They have a dramatic impact on the health-related quality of life. The new biological ... [more ▼]

Inflammatory bowel diseases (IBD), Crohn's disease and ulcerative colitis are frequent illnesses in western countries. They have a dramatic impact on the health-related quality of life. The new biological treatments developed for these diseases are potentially very effective, but are also expensive and may have significant side effects. In the present paper, the authors describe new biological therapies used during the past 10 years at the CHU. More than 20 therapeutic protocols were implemented. These protocols have given the patients the opportunity to gain very rapid access to new efficient therapies, to benefit from promising techniques for the evaluation of their pathology and to be submitted to a close follow-up that frequently called their treatment into question in the light of the most innovative options. [less ▲]

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See detailHistoriens et commémorations, encore et toujours...
Raxhon, Philippe ULiege

in Bousmar, Eric; Dubois, Sébastien; Tousignant, Nathalie (Eds.) Les 175 ans de la Belgique. Histoire d’une commémoration et commémoration d’une histoire : regards critiques. (2007)

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