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See detailMarocains de Belgique : du travailleur immigré au citoyen transnational
Martiniello, Marco ULg; Bousetta, Hassan ULg

in Hommes & Migrations (2003), 1242(Mars-Avril), 94-106

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See detailNonlinear thin shell finite element for steel and concrete structures subjected to fire: verification and validation
Talamona, Didier; Castagne, Sylvie; Franssen, Jean-Marc ULg

in Journal of Applied Fire Science (2003), 12(1), 65-81

This article presents verification and validation examples for a nonlinear thin shell element developed for structures subjected to fire. The verification benchmarks are: a Z-shaped cantilever, a twisted ... [more ▼]

This article presents verification and validation examples for a nonlinear thin shell element developed for structures subjected to fire. The verification benchmarks are: a Z-shaped cantilever, a twisted cantilever beam, a hemispherical shell, and Lee's frame at room temperature and at elevated temperature. The element shows that it provides results in good agreement with theoretical results and other finite elements. The validation calculations have been performed on an H rolled profile and a concrete slab. The element demonstrates its ability to reproduce local buckling on a H-steel beam under fire conditions and that it predicts accurately the failure of a concrete slab subjected to fire. The theoretical development of this finite element has been published in the Journal of Applied Fire Science, Vol. 11, No. 4, pp. 291-310, "Nonlinear Thin Shell Finite Element for Steel and Concrete Structures Subjected to Fire: Theoretical Development." [less ▲]

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See detailWhat are the realistic hopes for stem cells in neurological diseases ?
Rogister, Bernard ULg

in Bulletin de l'Académie Nationale de Médecine (2003), 158

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See detailWhat are the realistic hopes for remyelinisation in the central nervous system ?
Rogister, Bernard ULg

in Bulletin de l'Académie Nationale de Médecine (2003), 158

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See detailOn the use of control surface excitation in flutter testing
Wright, Jan R; Wong, Jerry; Cooper, Jonathan E et al

in Proceedings of the Institution of Mechanical Engineers - Part G - Journal of Aerospace Engineering (2003), 217(6), 317-332

Flutter testing is aimed at demonstrating that the aircraft flight envelope is flutter free. Response measurements from deliberate excitation of the structure are used to identify and track frequency and ... [more ▼]

Flutter testing is aimed at demonstrating that the aircraft flight envelope is flutter free. Response measurements from deliberate excitation of the structure are used to identify and track frequency and damping values against velocity. In this paper, the common approach of using a flight control surface to provide the excitation is examined using a mathematical model of a wing and control surface whose rotation is restrained by a simple actuator. In particular, it is shown that it is essential to use the demand signal to the actuator as a reference signal for data processing. Use of the actuator force (or strain) or control angle (or actuator displacement) as a reference signal is bad practice because these signals contain response information. It may also be dangerous in that the onset of flutter may not be seen in the test results. [less ▲]

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See detailEtude comparative des caractéristiques physiques et mécaniques du bois des mélèzes d'Europe (Larix decidua Mill.), du Japon (Larix kaempferi (Lambert) Carr.) et de leur hybride (Larix x eurolepis Henry).
Charron, Stéphane; Jourez, Benoît ULg; Marchal, Michèle et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2003), 7(1), 5-16

This present research aims to compare physical and mechanical characteristics between two larch species and their hybrid (Larix decidua Mill., Larix kaempferi (Lambert) Carr. et Larix x eurolepis Henry ... [more ▼]

This present research aims to compare physical and mechanical characteristics between two larch species and their hybrid (Larix decidua Mill., Larix kaempferi (Lambert) Carr. et Larix x eurolepis Henry). From each species, normalised samples have been sawn from five trees, and <br />submitted to normalised tests according to the norms NBN 225, NF B 51-016 and DIN 52189. The Japanese (Larix kaempferi (Lambert) Carr.) and hybrid (Larix x eurolepis Henry) larches present similar physical and mechanical properties, always lower than those observed for the European one. This is partly explained by a higher mean wood density for this species. <br />Whatever the species, juvenile wood presents lower physical and mechanical properties than mature wood. The larch wood produced in the Walloon Region presents a large technological potential that it is interesting to promote, without forgetting to adapt the classification procedures. Consequently, larch appears to be a versatile species, which can be used for numerous purposes, inside as well as outside. [less ▲]

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See detail« ‘Soñar, recordar y vivir con eso’. Los sueños de los Záparas en la construcción del pasado, Amazonia Ecuatoriana »,
Bilhaut, Anne-Gaël ULg

in Estudios Atacameños (2003), 26

The ethnographic study of the Zápara case brings new and original data about memory building processes. The Amazonian Zápara achieve knowledge about their past through dreams that also have a fundamental ... [more ▼]

The ethnographic study of the Zápara case brings new and original data about memory building processes. The Amazonian Zápara achieve knowledge about their past through dreams that also have a fundamental role in their daily life. We will see how their history is constructed by means of dream experiences, and how these are used strategically in the present. Dreams, furthermore, guarantee the cultural and ritual continuity of this group on the verge of extinction. [less ▲]

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See detailRT-PCR-ELISA for Detection of Apple stem grooving virus in Apple Trees
Marinho, Véra Lucia A.; Daniels, Julio; Kummert, Jean et al

in fitopatologia Brasileira (2003), 28(4), 374-379

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See detailL’émergence d’un marché d’immobilier d’entreprise. L’exemple de la Wallonie
Merenne-Schoumaker, Bernadette ULg

in Geocarrefour (2003), 78

In less than ten years, a business property market has emerged in Wallonia. This market first concerned offices and retail units (a sector not studied in this paper) and, more recently, semi-industrial ... [more ▼]

In less than ten years, a business property market has emerged in Wallonia. This market first concerned offices and retail units (a sector not studied in this paper) and, more recently, semi-industrial establishments. Its development is largely related to the creation of new demands in physical units, environment and accessibility, as well as in location choices, at both sub-regional and local scales. It has been favoured by the arrival of new property stakeholders from Belgium and abroad (developers, investors and property agents), as well as by public authorities (the Walloon Region and, more importantly, supra-communal, economic development agencies). The emergence of this market is related to the accentuation of territorial contrasts as property development projects usually reinforce strong area [less ▲]

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See detailTopical ascorbic acid on photoaged skin. Clinical, topographical and ultrastructural evaluation: double-blind study vs. placebo.
Humbert, Philippe G; Haftek, Marek; Creidi, Pierre et al

in Experimental Dermatology (2003), 12(3), 237-44

Vitamin C is known for its antioxidant potential and activity in the collagen biosynthetic pathway. Photoprotective properties of topically applied vitamin C have also been demonstrated, placing this ... [more ▼]

Vitamin C is known for its antioxidant potential and activity in the collagen biosynthetic pathway. Photoprotective properties of topically applied vitamin C have also been demonstrated, placing this molecule as a potential candidate for use in the prevention and treatment of skin ageing. A topically applied cream containing 5% vitamin C and its excipient were tested on healthy female volunteers presenting with photoaged skin on their low-neck and arms in view to evaluate efficacy and safety of such treatment. A double-blind, randomized trial was performed over a 6-month period, comparing the action of the vitamin C cream vs. excipient on photoaged skin. Clinical assessments included evaluation at the beginning and after 3 and 6 months of daily treatment. They were performed by the investigator and compared with the volunteer self assessment. Skin relief parameters were determined on silicone rubber replicas performed at the same time-points. Cutaneous biopsies were obtained at the end of the trial and investigated using immunohistochemistry and electron microscopy. Clinical examination by a dermatologist as well as self-assessment by the volunteers disclosed a significant improvement, in terms of the 'global score', on the vitamin C-treated side compared with the control. A highly significant increase in the density of skin microrelief and a decrease of the deep furrows were demonstrated. Ultrastructural evidence of the elastic tissue repair was also obtained and well corroborated the favorable results of the clinical and skin surface examinations. Topical application of 5% vitamin C cream was an effective and well-tolerated treatment. It led to a clinically apparent improvement of the photodamaged skin and induced modifications of skin relief and ultrastructure, suggesting a positive influence of topical vitamin C on parameters characteristic for sun-induced skin ageing. [less ▲]

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See detailEcoFerme: un logiciel d'évaluation environnementale de l'exploitation agricole
Debouche, Charles ULg

in Les Nouvelles de l'été (2003), (3e trimetre), 14-15

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See detailLes surcoûts de la désurbanisation
Dubois, Olivier; Halleux, Jean-Marie ULg

in A+ (2003), (Février-Mars), 34-37

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See detailLa didactique de la géographie, Cent ans de géographie à l’Université de Liège, 1903-2003
Merenne-Schoumaker, Bernadette ULg

in Bulletin de la Société Géographique de Liège (2003), 43

100 years of training and research in didactics of geography at the University of Liege

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See detailCent ans de Didactique de la Géographie à l’Université de Liège
Merenne-Schoumaker, Bernadette ULg

in Puzzle (2003), (14), 14-16

One hundred years of training and research in didactics of geography at the University of Liege

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See detailDe la géographie des professeurs à la géographie de l’action : une place nouvelle dans l’enseignement secondaire
Merenne-Schoumaker, Bernadette ULg

in Belgeo (2003), 2003(2), 157-164

Within 50 years, school geography changed drastically, especially in the secondary schools of French-speaking Belgium. This evolution, made of four major phases, is related with the changes of both ... [more ▼]

Within 50 years, school geography changed drastically, especially in the secondary schools of French-speaking Belgium. This evolution, made of four major phases, is related with the changes of both, societies and values. Although school geography is not any more a “reduction” of academic geography, its evolution is also related with the changes that took place within universities. On the basis of a SWOT analysis, forces and weaknesses of this secondary school geography are underlined and some action proposals are suggested. [less ▲]

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See detailLa géographie économique, Cent ans de géographie à l’Université de Liège, 1903-2003
Merenne-Schoumaker, Bernadette ULg

in Bulletin de la Société Géographique de Liège (2003), (43), 111-119

100 years of economic geography at the University of Liege

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See detailEffets fonctionnels respiratoires induits par l'inhalation de glycopyrrolate chez le cheval poussif en crise
Art, Tatiana ULg; de Moffarts, Brieuc; Van Erck, Emmanuelle et al

in Annales de Médecine Vétérinaire (2003), 147

Bronchoconstriction is one of the most constant clinical sign observed in heaves-affected horses in crisis. Cholinergic pathways are involved in the occurrence of this obstruction. Consequently ... [more ▼]

Bronchoconstriction is one of the most constant clinical sign observed in heaves-affected horses in crisis. Cholinergic pathways are involved in the occurrence of this obstruction. Consequently anticholinergic drugs are potentially able to improve the pulmonary function of horses in acute crisis. Among these, atropine and ipratropium bromide have been previously experimented and their beneficial effects reported. In the present work, glycopyrrolate, another synthetic anticholinergic molecule has been tested for bronchodilator efficiency in heaves-affected horses. An acute exacerbation of the illness was obtained by a natural challenge with hay and straw in 7 heaves-affected horses. The first day, the reversibility of the bronchospasm of these horses was controlled by intravenous administration of atropine. Then, pulmonary function tests including mechanics of breathing, ie measurement of pleural pressure changes and respiratory airflows, and arterial blond gases analysis, were performed before as well as 15 and 60 minutes alter inhalation of 1500 µg of glycopyrrolate (Robinul®). The crisis induced a dramatic increase of total pulmonary resistance and maximal pleural pressure changes as well as a decrease in dynamic lung compliance. These changes were significantly reversed 15 and 60 minutes after inhalation of glycopyrrolate. We did not observe any adverse effects similar to those classically observed with atropine. These results showed that glycopyrrolate is a very efficient bronchodilator that may be used by the practitioner to treat a heaves-affected horses in crisis [less ▲]

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