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See detailFirst synthesis of a '1,2-diquinone-calix[4]arene'. Interaction of its reduced form with Ag+
Vataj, Rame; Ridaoui, Hassan; Louati, Alain et al

in Journal of Electroanalytical Chemistry (2002), 519(1-2), 123129

Electrochemical oxidation of 5,11,17,23-tetra-tert-butyl-25,26-bis(diphenylphosphinoylmethoxy)-27,28-dihydroxycalix[4]arene (3), a calixarene with two phosphoryl units appended on proximal positions ... [more ▼]

Electrochemical oxidation of 5,11,17,23-tetra-tert-butyl-25,26-bis(diphenylphosphinoylmethoxy)-27,28-dihydroxycalix[4]arene (3), a calixarene with two phosphoryl units appended on proximal positions, affords the corresponding '1,2-diquinonecalix[4]arene' (4). The formation of 4 results from nucleophilic attack of residual water on anodically generated diphenoxylium. cations. Preliminary voltammetric experiments in CH3CN on a platinum electrode showed that 4 is suitable for electrochemical detection of the silver metal cation. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailDe la pluridisciplinarité à l'interdisciplinarité. Réflexions critiques sur la formation des enseignants en sciences sociales
Guillaume, Jean-François ULg; Barras, Dominique; Xhonneux, Michel ULg

in Puzzle (2002), 11

Réflexion sur le dispositif de formation des enseignants en sciences sociales, à l'Université de Liège, et sur les conditions requises pour une approche "interdisciplinaire".

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See detailReview of present European environmental policies and legislation involving cultural heritage
Teller, Jacques ULg; Bond, Alan

in Environmental Impact Assessment Review (2002), 22

Cultural heritage is being addressed by a number of Charters and Conventions and it is clear that its consideration within decision-making processes is progressively becoming a real challenge, both for ... [more ▼]

Cultural heritage is being addressed by a number of Charters and Conventions and it is clear that its consideration within decision-making processes is progressively becoming a real challenge, both for developers and public authorities. Against this background, this paper reviews the environmental assessment framework developed by the European Community, as this should increasingly influence decision making about cultural heritage in an urban setting. The legislative framework for access to environmental information is also reviewed because of its relevance to the decision-making process. The Directives on Environmental Impact Assessment and Strategic Environmental Assessment both require a consideration of cultural heritage in decision making. This requirement can go some way to addressing the paradox in the European Community’s position whereby the Community wishes to conserve and enhance its own cultural identity whilst, at the same time, cultural heritage is usually defined at a local level. The present paper suggests that, given their flexibility, the two European Community Directives on environmental assessment constitute a promising opportunity to address this seeming paradox, but that there is a significant gap between legal obligations and the methodological tools to meet them. [less ▲]

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See detailStress écologique et chronobiologique de la dérive géoclimatique.
Pierard, Sébastien ULg; Franchimont, Claudine ULg; Pierard, Gérald ULg

in Revue Verviétoise d'Histoire Naturelle (2002), 59

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See detailLa gestion des eaux par bassins hydrographiques
Pâques, Michel ULg; Leprince, Sylviane ULg

in Aménagement - Environnement (2002)

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See detailHarmonic-Balance Finite-Element Modelling of Electromagnetic Devices: A Novel Approach
Gyselinck, J.; Dular, Patrick ULg; Geuzaine, Christophe ULg et al

in IEEE Transactions on Magnetics (2002), 38(2), 521--524

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See detailAdvances in the field of COX-2 inhibition
De Leval, X.; Julémont, F.; Delarge, J. et al

in Expert Opinion on Therapeutic Patents (2002), 12

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See detailComposition de la carcasse, qualité de viande et exploitation du Piétrain stress négatif
Youssao, A. K. L.; Verleyen, Vincent ULg; Michaux, Charles ULg et al

in Annales de Médecine Vétérinaire (2002), 146(6), 329-338

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See detailThe formation and function of extracellular enveloped vaccinia virus
Smith, G. L.; Vanderplasschen, Alain ULg; Law, M.

in Journal of General Virology (The) (2002), 83

Vaccinia virus produces four different types of virion from each infected cell called intracellular mature virus (IMV), intracellular enveloped virus (IEV), cell-associated enveloped virus (CEV) and ... [more ▼]

Vaccinia virus produces four different types of virion from each infected cell called intracellular mature virus (IMV), intracellular enveloped virus (IEV), cell-associated enveloped virus (CEV) and extracellular enveloped virus (EEV). These virions have different abundance, structure, location and roles in the virus life-cycle. Here, the formation and function of these virions are considered with emphasis on the EEV form and its precursors, IEV and CEV. IMV is the most abundant form of virus and is retained in cells until lysis; it is a robust, stable virion and is well suited to transmit infection between hosts. IEV is formed by wrapping of IMV with intracellular membranes, and is an intermediate between IMV and CEV/EEV that enables efficient virus dissemination to the cell surface on microtubules. CEV induces the formation of actin tails that drive CEV particles away from the cell and is important for cell-to-cell spread. Lastly, EEV mediates the long-range dissemination of virus in cell culture and, probably, in vivo. Seven virus-encoded proteins have been identified that are components of IEV, and five of them are present in CEV or EEV. The roles of these proteins in virus morphogenesis and dissemination, and as targets for neutralizing antibody are reviewed. The production of several different virus particles in the VV replication cycle represents a coordinated strategy to exploit cell biology to promote virus spread and to aid virus evasion of antibody and complement. [less ▲]

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See detailChemical changes and influences of rapeseed antinutritional factors on gestating and lactating ewes 1. Animal performances and plasma hormones and glucose
Mandiki, S. N. M.; Derycke, G.; Bister, J. L. et al

in Animal Feed Science & Technology (2002), 98(1-2), 25-35

An experiment was carried out in order to study the effects of high levels of low-glucosinolates (LG)-rapeseed meal of two varieties (Apex or Synergy) on ewes and lambs performances and circulating ... [more ▼]

An experiment was carried out in order to study the effects of high levels of low-glucosinolates (LG)-rapeseed meal of two varieties (Apex or Synergy) on ewes and lambs performances and circulating hormones (progesterone-P4, estradiol-E2,-prolactin-PRL, cortisol, insulin, tri-iodothyronin-T3, thyroxin-T4) and glucose. On the 100th day of gestation, 90 ewes bearing at least two foetuses were divided into 3 groups. Control, Apex and Synergy groups received concentrates with 0, 40 and 40% of LG-rapeseed meal obtained with either Apex (13.77 mumol of glucosinolates/g DM seed) or Synergy (18.19 mumol) variety. Apart from the distribution of pasture hay ad libitum, the ewes received 500 and 1200 g of concentrates/animal per day during gestation and lactation, respectively. Concentrates were offered till the 47th day of lactation, and thereafter, the ewes were fed only with hay during 3 weeks. The lambs received ad libitum concentrates without rapeseed meal from 10 days of age till slaughtering. They were weaned at 65 days of age and were slaughtered when their fattening state was optimal. The performances of ewes (food intake and liveweight profiles) and of lambs (birth liveweight, mortality at birth, weight gains, slaughtering parameters) were not reduced by 40% of LG-rapeseed meal except a decrease in the liveweight for ewes in the Apex group after lambing. The profiles and levels of plasma metabolic (T3, T4, cortisol, insulin) and reproductive (PRL, P4) hormones were not modified by the rapeseed meal. In contrast, the estradiol concentration was lower (P < 0.05) in the two groups of ewes which received rapeseed meal than in the controls as an index of an eventual disturbance in the reproductive functions. In conclusion, large amounts of LG-rapeseed meal may be used as protein supplement in the diet of ewes at the end of gestation and during lactation without negative effects on animal performances and physiology. (c( 2002 Published by Elsevier Science B.V. [less ▲]

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See detailUne étude inédite de Franz Cumont sur le vocabulaire des inscriptions funéraires chrétiennes de Gaule
Rochette, Bruno ULg

in Bulletin de l'Institut Historique Belge de Rome (2002), 72

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See detailNormative and psychometric data from the Body Image Assessment - Revised in a population of french-speaking women
Bragard, Isabelle ULg; Mayers, I.; Demoulin, Catherine et al

in Psychologica Belgica (2002), 42(4), 227-249

This article concerns the creation of norms and the validation in French of the Body Image Assessment – Revised (BIA-R; Beebe, Holmbeck, & Grzeskiewicz, 1999). The sample comprised 100 normal female ... [more ▼]

This article concerns the creation of norms and the validation in French of the Body Image Assessment – Revised (BIA-R; Beebe, Holmbeck, & Grzeskiewicz, 1999). The sample comprised 100 normal female subjects. They completed questionnaires assessing body experience, eating pathology, psychological functioning, general perception and the BIA-R (Beebe et al., 1999). This test consists of nine silhouettes from which the subject has to choose the somatotype corresponding to her actual shape (cognitive response), the way she feels (affective response) and the way she would like to look (optative response). The results show a good concurrent validity for the cognitive and affective indices and the affective/ cognitive vs. optative divergences. On the other hand, we were not able to demonstrate such validity for the optative index and the affective vs. cognitive divergence index [less ▲]

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See detailDelays in claiming social security benefits
Jousten, Alain ULg; Diamond, P.; Coile, C. et al

in Journal of Public Economics (2002), 84

This paper focuses on Social Security benefit claiming behavior, a take-up decision that has been ignored in the previous literature. Using financial calculations and simulations based on an expected ... [more ▼]

This paper focuses on Social Security benefit claiming behavior, a take-up decision that has been ignored in the previous literature. Using financial calculations and simulations based on an expected utility maximization model, we show that delaying benefit claim for a period of time after retirement is optimal in a wide variety of cases and that gains from delay may be significant.We find that approximately 10% of men retiring before their 62nd birthday delay claiming for at least 1 year after eligibility. We estimate hazard and probit models using data from the New Beneficiary Data System to test four cross-sectional predictions. While the data suggest that too few men delay, we find that the pattern of delays by early retirees is generally consistent with the hypotheses generated by our theoretical model. [less ▲]

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See detailObservational survey of NSAID-related upper gastro-intestinal adverse events in Belgium
Belaiche, Jacques ULg; Burette, A.; De Vos, M. et al

in Acta Gastro-Enterologica Belgica (2002), 65(2, Apr-Jun), 65-73

Objectives : To evaluate the impact of NSAID use on current routine upper GI endoscopy (UGIE) and to compare the lesions found in NSAID users and non-users. Methods : Participating gastroenterologists ... [more ▼]

Objectives : To evaluate the impact of NSAID use on current routine upper GI endoscopy (UGIE) and to compare the lesions found in NSAID users and non-users. Methods : Participating gastroenterologists; consecutively documented outpatients with and without suspicion of bleeding, referred for upper gastrointestinal endoscopy. Patient characteristics, presence of risk factors, NSAID use and endoscopic findings were reported on standard data collection forms. Main results : A total of 2685 non-bleeding and 159 bleeding patients were enrolled within a time period of 2 months. NSAID therapy was present in 20% of the non-bleeding patients and at least 9% of referrals for endoscopy were directly related to suspected NSAID adverse events. Nearly half of acute bleeding patients (42%) were NSAID users, including aspirin for cardioprevention. Warning digestive symptoms prior to acute bleeding were frequently absent (56%). Oesophagitis was the main endoscopic diagnosis (51% of patients). Gastroduodenal (GD) ulcer was significantly more frequent in NSAID users, whereas oesophagitis and bleeding oesophageal varices were more frequent among non-users. Analysis of odds ratio's demonstrated NSAID use to significantly increase the risk for gastric ulcer in the whole patient group (OR = 2.73; 95% confidence interval (CI) : 1.983.77; p < 0.001) and, in addition, for duodenal ulcer in the elderly (>65y) subgroup (OR = 2.91; 95 % CI : 1.52-5.59; p < 0.05). Conclusions : This survey confirms the high incidence of GD ulcers in NSAID users and the risk for serious gastrointestinal complications, often occurring without warning symptoms. It underlines the impact of NSAID use on the routine endoscopy load, the necessity of careful selection of patients for NSAID prescriptions and the need for gastropreventive measures, particularly in elderly patients and patients associating multiple risk factors. [less ▲]

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See detailL'iconographie du meurtre de saint Lambert de Liège
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (2002)

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See detailQuelques tournures péjoratives dans le débat philosophiques en sanskrit
Verpoorten, Jean-Marie ULg

in Indologica Taurinensia (2002)

Répertoire de 48 termes méprisants ou insultants utilisés par des philosophes antagonistes pour qualifier leurs adversaires et leurs doctrines. On notera d’ailleurs qu’il existe également des auteurs qui ... [more ▼]

Répertoire de 48 termes méprisants ou insultants utilisés par des philosophes antagonistes pour qualifier leurs adversaires et leurs doctrines. On notera d’ailleurs qu’il existe également des auteurs qui écrivent leurs œuvres en igorant toute polémique et toute attaque personnelle. Ainsi Maņḍanamiśra (vers 700.). D’autres, au nombre de 26 ci-après, se laissent aller à la critique personnelle (sans d’ailleurs citer l’opposant par son nom) et à l’invective. L’article énumère les mots ainsi utilisés dans l’ordre alphabétique du sanskrit et y joint un bref commentaire. Voici quelques exemples. Le bouddhiste Dignāga décrit ses adversaires comme de « mauvais logiciens » (kutarka) imbus de leurs vues erronées (abhimāna). Tout en utilisant le terme de « votre honneur » (āyuṣmant , tatrabhavant) , on traitera l’opposant de « fou » (unmatta, jaḍa, mūrkha, pramatta, manda, mūḍha), de « gosse » (bāla), d’ « animal » (paśu). A noter l’expression devānāṃpriya « chéri des dieux » synonyme de « fou », qui équivaut mutatis mutandis à « imbécile heureux ». On peut ajouter des expressions d’indignation et de mépris comme « ah, la grande folie ! propos totalement stupide, propos d’aveugle, divagation, énormité ». [less ▲]

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See detailN-(3-Phenoxy-4-pyridinio)methanesulfonamidate
Michaux, C.; Charlier, C.; Julémont, F. et al

in Acta Crystallographica (2002)

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See detailNitrosomonas europaea-like bacteria detected as the dominant beta-subclass Proteobacteria ammonia oxidisers in reference and limed acid forest soils
Carnol, Monique ULg; Kowalchuk, G. A.; De Boer, W.

in Soil Biology & Biochemistry (2002), 34

Net nitrification in intact soil cores and the community of ammonia-oxidising bacteria were studied in acid Norway spruce (Picea abies (L.) Karst) and sessile oak (Quercus petraea (Matt. Lieb.)) soils ... [more ▼]

Net nitrification in intact soil cores and the community of ammonia-oxidising bacteria were studied in acid Norway spruce (Picea abies (L.) Karst) and sessile oak (Quercus petraea (Matt. Lieb.)) soils (Haute Ardenne, east Belgium) 18 months after treatment with 5 t ha(-1) dolomite lime. Liming caused a significant increase in nitrification in the upper soil layers (0.15 m) of both stands. DGGE (denaturing gradient gel electrophoresis) profiling after P-subclass ammonia oxidiser-specific polymerase chain reaction (PCR), combined with hybridisation and sequencing of excised DGGE bands revealed a dominance of Nitrosomonas europaea-like sequences, independent of soil horizon, tree species and lime treatment. A minority Nitrosospira-like population was detected, which showed affinity to nitrosospiras previously detected in acid soil. These results contrast with several reports suggesting a dominance of Nitrosospira-like organisms among ammonia oxidiser communities in acid soils. (C) 2002 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailThe gene INPPL1, encoding the lipid phosphatase SHIP2, is a candidate for type 2 diabetes in rat and man
Marion, Evelyne; Kaisaki, Pamela Jane; Pouillon, Valérie et al

in Diabetes (2002), 51

Genetic susceptibility to type 2 diabetes involves many genes, most of which are still unknown. The lipid phosphatase SHIP2 is a potent negative regulator of insulin signaling and sensitivity in vivo and ... [more ▼]

Genetic susceptibility to type 2 diabetes involves many genes, most of which are still unknown. The lipid phosphatase SHIP2 is a potent negative regulator of insulin signaling and sensitivity in vivo and is thus a good candidate gene. Here we report the presence of SHIP2 gene mutations associated with type 2 diabetes in rats and humans. The R1142C mutation specifically identified in Goto-Kakizaki (GK) and spontaneously hypertensive rat strains disrupts a potential class II ligand for Src homology (SH)-3 domain and slightly impairs insulin signaling in cell culture. In humans, a deletion identified in the SHIP2 3' untranslated region (UTR) of type 2 diabetic subjects includes a motif implicated in the control of protein synthesis. In cell culture, the deletion results in reporter messenger RNA and protein overexpression. Finally, genotyping of a cohort of type 2 diabetic and control subjects showed a significant association between the deletion and type 2 diabetes. Altogether, our results show that mutations in the SHIP2 gene contribute to the genetic susceptibility to type 2 diabetes in rats and humans [less ▲]

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See detailRegulation of gene expression by oxygen: NF-kappaB and HIF-1, two extremes.
Michiels, Carine; Minet, Emmanuel; Mottet, Denis ULg et al

in Free Radical Biology & Medicine (2002), 33(9), 1231-42

Aerobic life is dependent on molecular oxygen for ATP regeneration, but only possible in a narrow range of oxygen concentrations. Increased oxygen tension is toxic through the generation of reactive ... [more ▼]

Aerobic life is dependent on molecular oxygen for ATP regeneration, but only possible in a narrow range of oxygen concentrations. Increased oxygen tension is toxic through the generation of reactive oxygen species (ROS), while a decrease in oxygen concentration impairs energy availability and, hence, cell viability. Cells have developed strategies to respond to changes in oxygen tension: specific systems detect excessive ROS and hypoxia, leading to the activation of specific transcription factors and expression of appropriate target genes. The aim of this review is to describe how hypoxia-inducible factor-1 (HIF-1) and nuclear factor-kappaB (NF-kappaB) are regulated and what could be the sensors to the changes in oxygen levels. Some of the physiological responses initiated by these transcription factors are also mentioned. [less ▲]

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See detailBPDZ 154 Activates Adenosine 5’-Triphosphate-Sensitive Potassium Channels; In Vitro Studies Using Rodent Insulin-Secreting Cells and Islets Isolated from Patients with Hyperinsulinism
Cosgrove, K. E.; Antoine, M.-H.; Lee, A. T. et al

in Journal of Clinical Endocrinology and Metabolism (2002), 87

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See detailPetite réflexion sur la qualité du bois d'épicéa
Hebert, Jacques ULg; Herman, Marc; Jourez, Benoît ULg

in Forêt Wallonne (2002), (60), 24-25

En termes de qualité du bois, l'influence du sylviculteur est déterminante. En effet, dès la décision de plantation, et ensuite, par le jeu des soins culturaux et des éclaircies, il va façonner, compte ... [more ▼]

En termes de qualité du bois, l'influence du sylviculteur est déterminante. En effet, dès la décision de plantation, et ensuite, par le jeu des soins culturaux et des éclaircies, il va façonner, compte tenu des conditions environnementales, les caractéristiques de la matière première qui en définiront les aptitudes technologiques. [less ▲]

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See detailThree years experiment with the same tin oxide sensor arrays for the identification of malodorous sources in the environment
Romain, Anne-Claude ULg; Nicolas, Jacques ULg; Andre, Philippe ULg

in Sensors and actuators. B, Chemical (2002), (84), 271-277

The paper discusses the ability of recognition models to classify malodours in the environment 3 years after their calibration, with the same sources releasing odours. Two methodologies applicable either ... [more ▼]

The paper discusses the ability of recognition models to classify malodours in the environment 3 years after their calibration, with the same sources releasing odours. Two methodologies applicable either in the lab or in the field are used. The effect of the long term drift of the sensors is highlighted on the results of principal component analysis (PCA) and of discriminant function analysis (DFA). The paper examines also the applicability of some drift counteraction methods proposed in the literature. Handled with some care, a correction based on the drift direction in the principal components subspace should be applicable to the classification of real odorous sources in the field. [less ▲]

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See detailSoil Seed Bank And Seed Dormancy In Wild Populations Of Lima Bean (Fabaceae): Considerations For In Situ And Ex Situ Conservation
Degreef, J.; Rocha, O.; Vanderborght, T. et al

in American Journal of Botany (2002), 89(10), 1644-1650

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See detailConfirmation des effets délétères rénaux des AINS anti COX2 illustrée par trois cas cliniques
Piront, P.; Krzesinski, Jean-Marie ULg

in Acta Clinica Belgica (2002), 57(1), 35

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See detailThe role of cyclic AMP and its effect on protein kinase A in the mitogenic action of thyrotropin on the thyroid cell
Dremier, S.; Coulonval, K.; Perpete, S. et al

in Annals of the New York Academy of Sciences (2002), 968

Cyclic AMP has been shown to inhibit cell proliferation in many cell types and to activate it in some. The latter has been recognized only lately, thanks in large part to studies on the regulation of ... [more ▼]

Cyclic AMP has been shown to inhibit cell proliferation in many cell types and to activate it in some. The latter has been recognized only lately, thanks in large part to studies on the regulation of thyroid cell proliferation in dog thyroid cells. The steps that led to this conclusion are outlined. Thyrotropin activates cyclic accumulation in thyroid cells of all the studied species and also phospholipase C in human cells. It activates directly cell proliferation in rat cell lines, dog, and human thyroid cells but not in bovine or pig cells. The action of cyclic AMP is responsible for the proliferative effect of TSH. It accounts for several human diseases: congenital hyperthyroidism, autonomous adenomas, and Graves' disease; and, by default, for hypothyroidism by TSH receptor defect. Cyclic AMP proliferative action requires the activation of protein kinase A, but this effect is not sufficient to explain it. Cyclic AMP action also requires the permissive effect of IGF-1 or insulin through their receptors, mostly as a consequence of PI3 kinase activation. The mechanism of these effects at the level of cyclin and cyclin-dependent protein kinases involves an induction of cyclin D3 by IGF-1 and the cyclic AMP-elicited generation and activation of the cyclin D3-CDK4 complex [less ▲]

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See detailLes lithométéores au Niger: mise au point.
Ozer, Pierre ULg

in Würzburger Geographische Arbeiten (2002), (97), 7-32

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See detailReplicon typing of the F18 fimbriae encoding plasmids of enterotoxigenic and verotoxigenic Escherichia coli strains from porcine postweaning diarrhoea and oedema disease
Fekete, PZs; Gérardin, J.; Jacquemin, E. et al

in Veterinary Microbiology (2002), 85

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See detailIncreased fecundity of malathion-specific resistant beetles in absence of insecticide pressure
Arnaud, Ludovic; Brostaux, Yves ULg; Assie, Lazare Komenan et al

in Heredity (2002), 89(6), 425-429

Despite that resistance frequency is assumed to decline when selective pressure is relaxed, the stability of resistance frequency has been observed in some insects in the absence of insecticide. In the ... [more ▼]

Despite that resistance frequency is assumed to decline when selective pressure is relaxed, the stability of resistance frequency has been observed in some insects in the absence of insecticide. In the red flour beetle, Tribolium castaneum, the first case of malathion-resistance was reported in the early 1960s. The malathion-specific resistant phenotype has now almost completely replaced the susceptible one in red flour beetle populations. In the present study, several life-history traits that could influence the fitness of the insects were compared between insecticide-susceptible and malathion-specific resistant populations of the red flour beetle. On average, egg fertility and egg-to-adult development time did not differ between susceptible and resistant populations. However, the fecundity of resistant females was greater than that of susceptible ones. Generally, differences in development time between insecticide resistant and susceptible populations are considered as having more effect on fitness than do differences in fecundity. However, the observed increased female fecundity may participate, in combination with the previously observed increased male reproductive success, to the development and the stability of malathion-specific resistance in T. castaneum. [less ▲]

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See detailL'égalité et le droit commercial: un rapport à géométrie variable
Thirion, Nicolas ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2002)

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See detailEffect of instillation into lung of autologous blood on pulmonary function and tracheobronchial wash cytology
Art, Tatiana ULg; Tack, S.; Kirschvink, Nathalie et al

in Equine Veterinary Journal. Supplement (2002), 34

This study aimed at measuring the functional consequences and the pulmonary cytology changes following a simulation of pulmonary haemorrhage. Pulmonary function tests including lobeline-induced ... [more ▼]

This study aimed at measuring the functional consequences and the pulmonary cytology changes following a simulation of pulmonary haemorrhage. Pulmonary function tests including lobeline-induced hyperventilation, cytology of tracheo-bronchial wash (TBW) and thoracic radiographs were performed before, as well as 1, 7, 14 and 28 days after, the instillation of 300 ml of blood into the lungs of 4 horses deemed free of exercise-induced pulmonary haemorrhage (Group 1). Control data (Group 2) were obtained by instilling the same volume of saline into the lungs of the same horses in a crossover design (control). The instillation of blood or saline resulted in an increase in the number of neutrophils in the TBW. Thoracic radiographs showed increased opacity in the caudodorsal region of the lungs in 4/4 (Day 1) and 2/4 horses (Day 7), in Group 1, and in 2/4 (Day 1) and 0/4 horses (Day 7) in the control group. These changes were attributed to the instillation procedure rather than the nature of the instilled material. Breathing mechanics and arterial blood gases at rest were not affected in either Groups 1 or 2. However, the maximal expiratory peak flow recorded during lobeline-induced hyperventilation was significantly lower (P<0.05) and the total pulmonary resistance significantly higher (P<0.05) on Day 1 in Group 1, but not Group 2. These observations suggest that expiratory flows might be partly limited in bleeders when breathing at high airflow [less ▲]

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See detailMurine 5T multiple myeloma cells induce angiogenesis in vitro and in vivo
Van Valckenborgh, E.; De Raeve, H.; Devy, L. et al

in British Journal of Cancer (2002), 86(5), 796-802

Multiple myeloma is a B cell malignancy. Recently, it has been demonstrated that bone marrow samples of patients with multiple myeloma display an enhanced angiogenesis. The mechanisms involved seem to be ... [more ▼]

Multiple myeloma is a B cell malignancy. Recently, it has been demonstrated that bone marrow samples of patients with multiple myeloma display an enhanced angiogenesis. The mechanisms involved seem to be multiple and complex. We here demonstrate that the murine 5T multiple myeloma models are able to induce angiogenesis in vitro by using a rat aortic ring assay and in vivo by determining the microvessel density. The rat aortic rings cultured in 5T multiple myeloma conditioned medium exhibit a higher number of longer and more branched microvessels than the rings cultured in control medium. In bone marrow samples from 5T multiple myeloma diseased mice, a statistically significant increase of the microvessel density was observed when compared to bone marrow samples from age-matched controls. The angiogenic phenotype of both 5T multiple myeloma cells could be related, at least in part, to their capacity to produce vascular endothelial growth factor. These data clearly demonstrate that the 5T multiple myeloma models are good models to study angiogenesis in multiple myeloma and will allow to unravel the mechanisms of neovascularisation, as well as to test new putative inhibitors of angiogenesis. [less ▲]

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See detailLymphocyte Kinetics: The Interpretation Of Labelling Data
Asquith, B.; Debacq, C.; Macallan, Dc. et al

in Trends In Immunology (2002), 23(12),

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See detailA transformed fish cell line expressing a green fluorescent protein-luciferase fusion gene responding to cellular stress
Molina, A.; Carpeaux, Rudy ULg; Martial, Joseph ULg et al

in Toxicology in Vitro (2002), 16(2), 201-7

We obtained a stable transformed fish (EPC) cell line containing a reporter gene under the control of the tilapia HSP70 promoter. Expression of the reporter gene, coding for a green fluorescent protein ... [more ▼]

We obtained a stable transformed fish (EPC) cell line containing a reporter gene under the control of the tilapia HSP70 promoter. Expression of the reporter gene, coding for a green fluorescent protein (GFP)-luciferase fusion protein, was assessed by measuring the luciferase enzymatic activity by luminometry and the GFP expression by fluorescence microscopy and flow cytometry. The clone was characterized for its capacity to respond to heat shock treatment. The results show high induction after 1 h at 37 degrees C of treatment, up to 500-fold. In addition, its convenience to detect a large range of cellular stressors was evaluated. We observed high induction when Cd2+, Zn2+, Hg2+ or Cu2+ was added, but not Pb2+. In addition, activation of the reporter gene was observed in the presence of other compounds such as acetyl chloride, tetrachlorophenol, chloroacetamide and sodium arsenite. In conclusion, this cell line can be used as a rapid, cheap and easy biological test to determine cellular stress induced by environmental pollutants, alone or in conjunction with other, more specific assays. [less ▲]

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See detailOptimization of recombinant human erythropoietin therapy after allogeneic hematopoietic stem cell transplantation.
Baron, Frédéric ULg; Sautois, Brieuc ULg; Baudoux, Etienne ULg et al

in Experimental hematology (2002), 30(6), 546-54

OBJECTIVE: Allogeneic hematopoietic stem cell transplantation (HSCT) is associated with prolonged anemia caused by defective erythropoietin (Epo) production. We enrolled 34 recipients of an allogeneic ... [more ▼]

OBJECTIVE: Allogeneic hematopoietic stem cell transplantation (HSCT) is associated with prolonged anemia caused by defective erythropoietin (Epo) production. We enrolled 34 recipients of an allogeneic HSCT in three consecutive trials to determine the optimal utilization of recombinant human erythropoietin (rhEpo) therapy in this setting. MATERIALS AND METHODS: In the first trial (n = 7), rhEpo 1400 U/kg/week was given from day 1 until a hemoglobin (Hb) level of 10 g/dL was achieved, for a maximum of 60 days. In the second trial, rhEpo 500 U/kg/week was given to achieve Hb levels of 13 to 14 g/dL in 13 anemic patients with fatigue 56 to 1440 days after transplant. In the third trial, rhEpo was scheduled to start on day 35 in 14 patients at a dose of 500 U/kg/week with the aim of achieving Hb levels of 13 to 14 g/dL. RESULTS: In trial 1, erythroid recovery to 1% reticulocytes and red blood cell transfusion independence were faster, but the number of transfusions was not reduced compared to 10 controls. Responses were brisk in trial 2, with transfusion independence achieved after a median of 1 week in 12 of 13 patients, and 2-g Hb increments or Hb values of 11, 12, and 13 g/dL after 6, 7, 10, and 10 weeks, respectively. Transfusions were significantly reduced in the first month of rhEpo therapy. In trial 3, transfusion independence was obtained after a median of 1 week in 13 of 14 patients, and 2-g Hb increments or Hb values of 11, 12, and 13 g/dL after 3, 4, 6, and 8 weeks, respectively. Transfusions rates were considerably reduced compared to the previous month in the same patients or compared to controls undergoing peripheral blood or marrow transplant without rhEpo. CONCLUSIONS: Anemia after allogeneic HSCT is exquisitely sensitive to rhEpo. The benefit is minimal when it is given early post-transplant, as used in all trials to date. However, the rate of major response is greater than 90% when rhEpo is started after day 35. These data provide the basis on which to conduct a prospective, randomized, placebo-controlled trial of rhEpo therapy after allogeneic HSCT. [less ▲]

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See detailSociété civile et transition. Un regard sur l'évolution du projet de constitution d'une société civile en Roumanie postcommuniste
Pirotte, Gautier ULg

in Transitions : Ex-Revue des Pays de L'est (2002), XLIII(1),

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See detailSelf-esteem, social adjustment and suicidality in affective disorders
Daskalopoulou, E; Dikeos, D; Papadimitriou, G et al

in European Psychiatry (2002), 17

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See detailFirst-principles computation of material properties: the ABINIT software project
Gonze, X.; Beuken, J. M.; Caracas, R. et al

in Computational Materials Science (2002), 25(3), 478-492

The density functional theory (DFT) computation of electronic structure, total energy and other properties of materials, is a field in constant progress. In order to stay at the forefront of knowledge, a ... [more ▼]

The density functional theory (DFT) computation of electronic structure, total energy and other properties of materials, is a field in constant progress. In order to stay at the forefront of knowledge, a DFT software project can benefit enormously from widespread collaboration, if handled properly. Also, modern software engineering concepts can considerably ease its development. The ABINIT project relies upon these ideas: freedom of sources, reliability, portability, and self-documentation are emphasised, in the development of a sophisticated plane-wave pseudopotential code. We describe ABINITv3.0, distributed under the GNU General Public License. The list of ABINITv3.0 capabilities is presented, as well as the different software techniques that have been used until now: PERL scripts and CPP directives treat a unique set of FORTRAN90 source files to generate sequential (or parallel) object code for many different platforms; more than 200 automated tests secure existing capabilities; strict coding rules are followed; the documentation is extensive, including online help files, tutorials, and HTML-formatted sources. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailComment etablir le bilan de fin de traitement des patients atteints de lymphomes non-hodgkiniens (LNH) de malignite intermediaire ou elevee?
Warland, V.; Jerusalem, Guy ULg; Hustinx, Roland ULg et al

in Revue Médicale de Liège (2002), 57(12), 779-84

Incomplete regression of a lymphomatous mass after chemotherapy and/or radiotherapy constitutes a major problem in the treatment of lymphoma. In patients with persisting tumor, it could be reasonable to ... [more ▼]

Incomplete regression of a lymphomatous mass after chemotherapy and/or radiotherapy constitutes a major problem in the treatment of lymphoma. In patients with persisting tumor, it could be reasonable to use salvage therapy and possibly hematopoietic stem cell transplantation at the time of minimal disease rather than at the time of clinically overt relapse. The authors reviewed the most appropriate imaging techniques for the assessment of response to treatment. The limitations of CT and MRI for predicting the nature of residual masses are well known. 67Ga scintigraphy has become a standard procedure for the posttreatment evaluation of patients with lymphoma, but it appears that 18F-FDG PET may be a more effective method. Personal experience in the field of PET scan is reported. Although PET should be considered the noninvasive imaging modality of choice, a histological confirmation of residual disease is always necessary before starting salvage therapy. 18F-fluorodeoxyglucose is not a tumor specific radiotracer. [less ▲]

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See detailGenetic factors affecting susceptibility to udder pathogens
Detilleux, Johann ULg

in Veterinary Immunology and Immunopathology (2002), 88(3-4), 103-110

Bovine mastitis remains the most costly disease in dairy cattle. Breeding for resistance to udder pathogens has been proposed as a complementary tool to therapeutic and prophylactic measures not totally ... [more ▼]

Bovine mastitis remains the most costly disease in dairy cattle. Breeding for resistance to udder pathogens has been proposed as a complementary tool to therapeutic and prophylactic measures not totally effective against the disease. This paper reviews factors affecting cows’ susceptibility to pathogens at the animal, cellular/hormonal and DNA levels. Such factors will be useful in achieving genetic improvement for resistance only if they have desirable properties at the genetic and immunological levels. Because such properties are not always of significant magnitude, further research is necessary to identify characteristics of resistance in cows, considering the constant and complex interactions that occur between hosts and pathogens. [less ▲]

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See detailAdaptation to multiday ozone exposure is associated with a sustained increase of bronchoalveolar uric acid.
Kirschvink, Nathalie; Fievez, Laurence ULg; Bureau, Fabrice ULg et al

in Free Radical Research (2002), 36(1), 23-32

The phenomenon of ozone tolerance is described, but the underlying mechanisms remain unknown. We tested whether adaptation to multiday ozone exposure was related to an upregulated pulmonary antioxidant ... [more ▼]

The phenomenon of ozone tolerance is described, but the underlying mechanisms remain unknown. We tested whether adaptation to multiday ozone exposure was related to an upregulated pulmonary antioxidant defence. Six calves were exposed to 0.75 ppm ozone, 12 h day(-1) for seven consecutive days. Pulmonary function tests and bronchoalveolar lavage (BAL) were performed before, after the first (D1), third (D3) and seventh (D7) exposure. Differential cell count, total proteins, 8-epi-PGF2alpha, glutathione and uric acid were determined in BAL. Dynamic lung compliance and arterial oxygen tension were significantly decreased and lung oedema impaired pulmonary function on D1. By repeating ozone exposures, progressive functional adaptation occurred. Ozone induced a significant increase of BAL neutrophil percentage on D1. On D3 and D7, neutrophil percentage was progressively decreased, but remained significantly elevated. BAL total proteins were significantly increased on D1 and decreased progressively until D7. 8-Epi-PGF2alpha was significantly increased on D1 and was returned to baseline on D3 and D7, whilst glutathione significantly increased on D3 and returned to baseline on D7. Uric acid was increased ten-fold on D1. On D3, uric acid was increased six-fold and was persistently elevated at D7. This study suggests that ozone adaptation of functional and inflammatory variables is accompanied with sustained BAL uric acid elevation. [less ▲]

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See detailL'organisation au regard de l'esthétique
Servais, Christine ULg; Heller, Thomas

in Recherches en Communication (2002), 17

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See detailThe Use of Cardboard Bedding Material as Part of an Environmental Control Regime for Heaves-affected Horses: In Vitro Assessment of Airborne Dust and Aeroallergen Concentration and In Vivo Effects on Lung Function
Kirschvink, Nathalie; Di silvestro, F.; Sbai, Ilham ULg et al

in Veterinary Journal (2002), 163

This study aimed to test whether shredded cardboard is an appropriate minimum-dust bedding material for heaves-affected horses. Results of standardized in vitro measurement of airborne dust and ... [more ▼]

This study aimed to test whether shredded cardboard is an appropriate minimum-dust bedding material for heaves-affected horses. Results of standardized in vitro measurement of airborne dust and aeroallergen concentrations of cardboard bedding were significantly lower than those of common bedding materials. Six heaves-affected horses in clinical remission after pasturing were stabled for two months on cardboard bedding and fed grass silage. Pulmonary function tests (PFT: ventilatory mechanics, arterial blood gases, airway inflammation scoring, bronchoalveolar cytology) were performed before, during and after this period and after stabling the horses in poor hygienic conditions. PFT values measured during and after the stabling period on cardboard bedding were not significantly different from those recorded after the period at pasture or from those of healthy horses, but were significantly different from those recorded in poor hygienic conditions. On basis of the in vitro and in vivo results it can be concluded that cardboard bedding, used in conjunction with low-dust forage, may be appropriate in the provision of minimum-dust management of heaves-affected horses [less ▲]

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See detailChanges in motor unit numbers in patients with ALS: a longitudinal study using the adapted multiple point stimulation method.
Wang, François-Charles ULg; Bouquiaux, Olivier ULg; De Pasqua, Victor ULg et al

in Amyotrophic Lateral Sclerosis & Other Motor Neuron Disorders (2002), 3(1), 31-8

METHOD: The adapted multiple point stimulation (AMPS) method for calculating motor unit numbers (MUNE) was applied in 12 patients with amyotrophic lateral sclerosis (ALS) before riluzole therapy (T(0 ... [more ▼]

METHOD: The adapted multiple point stimulation (AMPS) method for calculating motor unit numbers (MUNE) was applied in 12 patients with amyotrophic lateral sclerosis (ALS) before riluzole therapy (T(0)) and again after 4, 8 and 12 months of treatment. RESULTS: Paired Student's t-test indicated a significant decrease of thenar MUNE and compound muscle action potential (CMAP) size at each 4-monthly interval, while average surface motor unit potential (SMUP) size did not change significantly over time. The rate of motor unit (MU) loss at month 4 was more than 20% in six patients (group 1) and less than 20% in six other patients (group 2). Comparison of groups 1 and 2 by Mann-Whitney U-testing indicated that percent changes in thenar MUNE and CMAP size compared to baseline were significantly different at months 4, 8 and 12, while no difference between the two groups was found for average SMUP size variations. In the group with a slow rate of MU loss, CMAP size remained stable, while in the group with a rapid rate of MU loss, there was a dramatic reduction in size of the CMAP. A positive correlation was found between percent change in thenar MUNE at T(4) and at T(12) (P < 0.001). CONCLUSION: AMPS is a useful technique to document MUNE, SMUP size and CMAP size changes over time in patients with ALS. [less ▲]

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See detailStunting may determine the severity of malaria-associated anemia in African children.
Verhoef, Hans; West, Clive E; Veenemans, Jacobien et al

in Pediatrics (2002), 110(4), 48

OBJECTIVE: Evidence from previous studies that malnourished children are protected against malaria is controversial. In individuals repeatedly exposed to malaria, immunity may develop first against severe ... [more ▼]

OBJECTIVE: Evidence from previous studies that malnourished children are protected against malaria is controversial. In individuals repeatedly exposed to malaria, immunity may develop first against severe disease, then against pyrogens, and last, against parasites. If this is true, this would suggest that reduced immune function that may exist in stunted children exacerbates the severity of malarial signs and symptoms, rather than the occurrence of parasitemia. On the other hand, several studies have suggested that malnourished children are protected to some degree against malaria. Our aim was to evaluate whether observational data support the hypothesis that nutritional inadequacies that cause stunting modify the associations between malaria and hematologic indicators such as hemoglobin concentration and serum concentrations of C-reactive protein and soluble transferrin receptor (sTfR). We showed earlier that increased serum concentrations of these receptors in asymptomatic malaria may be explained, at least in part, by increased erythropoiesis to compensate for malaria-induced hemolysis. METHODOLOGY: Community-based cluster survey among Kenyan children aged 2 to 36 months asymptomatic for malaria or anemia (n = 318). RESULTS: When adjusted for age and wasting, the malaria-associated decrease in mean hemoglobin concentration was 8.5 g/L and 15.8 g/L in nonstunted and stunted children, respectively. The malaria-associated increase in geometric mean serum concentrations of sTfR was 1.1-fold and 1.8-fold in nonstunted and stunted children, respectively. The malaria-associated increase in geometric mean serum concentrations of C-reactive protein was 1.4-fold and 2.3-fold in nonstunted and stunted children, respectively. Thus, children with malaria and those who were stunted suffered from more severe anemia and had higher serum concentrations of C-reactive protein and sTfR than would be expected from the combined effect of the 2 working independently. CONCLUSIONS: Our results are consistent with the notion that the nutritional inadequacies causing stunting also impair host immunity, thus increasing the degree to which malaria is associated with decreased concentrations of hemoglobin, with increased inflammation, and with increased iron demand in developing erythroblasts. Increased intake of micronutrients may not only reduce stunting and nutritional anemia, but also reduce malaria-associated anemia. [less ▲]

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See detailSyndrome du canal lent associe a une translocation autosomique 2q31-9p27.
Zeevaert, Bernard ULg; Hansen, Isabelle ULg; Crielaard, Jean-Michel ULg et al

in Revue Neurologique (2002), 158(5 Pt 1), 605-8

A 27-year-old man complained of cervicoscapular and forearm weakness and amyotrophy. Electromyographic evaluation showed neuromuscular transmission dysfunction and a repetitive compound muscle action ... [more ▼]

A 27-year-old man complained of cervicoscapular and forearm weakness and amyotrophy. Electromyographic evaluation showed neuromuscular transmission dysfunction and a repetitive compound muscle action potential to a single stimulus. Prostigmine did not improve neuromuscular transmission. The genetic analysis of the patient's lymphocytes demonstrated a chromosomic 2q31-9p27 translocation. The combination of the clinical and electrophysiological data as well as the lack of auto-immunity signs against neuromuscular junction constituents led to the diagnosis to congenital postsynaptic myasthenic syndrome also called slow channel syndrome. This congenital myasthenic syndrome is for the first time associated with an autosomal translocation 2q31-9p27. [less ▲]

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See detailOn the joint analysis of longitudinal responses and early discontinuation in randomized trials
Vandenhende, François; Lambert, Philippe ULg

in Journal of Biopharmaceutical Statistics (2002), 12

Our focus is on the joint analysis of longitudinal nonnormal responses and early discontinuation in (pre)-clinical trials. Separate models are fitted to the two series (response and discontinuation) to ... [more ▼]

Our focus is on the joint analysis of longitudinal nonnormal responses and early discontinuation in (pre)-clinical trials. Separate models are fitted to the two series (response and discontinuation) to account for covariate and time effects. The serial dependence and the dependence between response and drop-out are also modeled. This is done using particular dependence functions, called copulas. Copulas are used to create a joint distribution with given marginal distributions. Applications are given for the analysis of heart rate/morbidity in toxicology and pain severity/intake of rescue medications in a trial on migraine. Using copulas, the level of dependence between two variables remains invariant to changes in the marginal distribution of either variable. This proves interesting in modeling the association in a longitudinal setting when responses change over time. [less ▲]

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See detailUse of a serum-free medium to produce in vitro Neospora caninum and Toxoplasma gondii tachyzoites on Vero cells
De Meerschman, F.; Rettigner, C.; Focant, Charles ULg et al

in Veterinary Research (2002), 33(2, Mar-Apr), 159-168

Neospora caninum and Toxoplasma gondii are cyst-forming coccidian parasites of human and veterinary clinical relevance. In vitro cultivation of the protozoans using Vero cells is usually performed in ... [more ▼]

Neospora caninum and Toxoplasma gondii are cyst-forming coccidian parasites of human and veterinary clinical relevance. In vitro cultivation of the protozoans using Vero cells is usually performed in order to produce antigenic materials. Quantitative and qualitative comparisons of Vero cells grown in RPMI medium supplemented either with foetal calf serum (FCS), horse serum (HS) or a specific serum-free additive (DefCell) were performed. A serum-free cell culture system used to propagate N. caninum (NC-1 isolate) and T. gondii tachyzoites (Rh stain) were compared with the other two cell culture systems. FCS supplemented media was found to be more effective than the others in promoting Vero cells and N. caninum tachyzoites. However, it was found unable to support adequate T. gondii tachyzoite proliferation. Vero cells, T. gondii and N. caninum tachyzoite production gave similar growth patterns with either HS or DefCell supplemented media. Defcell was considered as a good alternative to supplement culture medium. [less ▲]

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See detailPhénomènes karstiques fossiles et actuels au sein des formations métamorphiques silico-alumineuses de la nappe pan-africaine de Yaoundé (Sud-Cameroun)
Vicat, Jean-Paul; Mvondoc, Henri; Willems, Luc ULg et al

in Comptes Rendus de l'Académie des Sciences. Série II, Mécanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre (2002), 334

Fossil and present-time karstic phenomena in silico-aluminous metamorphic formations of the Pan-African nappe of Yaoundé (South-Cameroon). Numerous karstic features have been recognised in the non ... [more ▼]

Fossil and present-time karstic phenomena in silico-aluminous metamorphic formations of the Pan-African nappe of Yaoundé (South-Cameroon). Numerous karstic features have been recognised in the non-carbonaceous micaschists and gneisses of the Yaoundé Pan-African nappe, south of Cameroon. It is shown that their formation was controlled by the structural features of the rocks. The wells and the pipes in the bedrock outcrops point out a current karstification process, resulting from the plagioclase dissolution by the acid rain waters. Hill wall alveoli and caves, of pre-Miocene age, are exhumed features that were done by dissolution in the aquiferous underground. [less ▲]

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See detailMemory kernels and effective Hamiltonians from time dependent methods. II. Vibrational predissociation
Brems, Vincent; Desouter, Michèle ULg

in Journal of Chemical Physics (2002), 116

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See detailOn the representation of real numbers using regular languages
Lecomte, Pierre ULg; Rigo, Michel ULg

in Theory of Computing Systems (2002), 35(1, JAN-FEB), 13-38

Using a lexicographically ordered regular language, we show how to represent an interval of R. We determine exactly the possible representations of any element in this interval and study the function ... [more ▼]

Using a lexicographically ordered regular language, we show how to represent an interval of R. We determine exactly the possible representations of any element in this interval and study the function which maps a representation onto its numerical value. We make explicit the relationship between the convergence of finite words to an infinite word and the convergence of the corresponding approximations to a real number. [less ▲]

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See detailDes doutes nes apres le 11 septembre aux espoirs places dans l'euro....
Kulbertus, Henri ULg; Scheen, André ULg

in Revue Médicale de Liège (2002), 57(1), 1-2

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See detailElectronic structure of thallium filled skutterudites studied by x-ray absorption and Mossbauer spectroscopy
Long, G. J.; Mahieu, B.; Sales, B. C. et al

in Journal of Applied Physics (2002), 92(12), 7236-7241

Thallium L-III-edge x-ray absorption and iron-57 and tin-119 Mossbauer spectral measurements have been carried out to probe the electronic structure of the three sites in the filled skutterudite TlxCo4 ... [more ▼]

Thallium L-III-edge x-ray absorption and iron-57 and tin-119 Mossbauer spectral measurements have been carried out to probe the electronic structure of the three sites in the filled skutterudite TlxCo4-yFeySb12 and TlxCo4Sb12-zSnz compounds with a range of x, y, and z values. The thallium L-III-edge x-ray absorption spectra are independent of x, y, and z and are well reproduced by full multiple scattering calculations with a cluster with a radius of 8.5 Angstrom centered on thallium. The iron-57 Mossbauer spectra consist of two doublets and the major component is assigned to iron on the cobalt sublattice in view of its hyperfine parameters. The origin of the minor component is uncertain and is tentatively assigned to either iron with thallium vacancies as next nearest neighbors or to iron in the voids. The tin-119 Mossbauer spectral hyperfine parameters clearly indicate that tin substitutes for antimony in the skutterudite structure. Further, the tin electronic configuration is very similar to that of antimony and is insensitive to the thallium content. (C) 2002 American Institute of Physics. [less ▲]

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See detailTexture evolution during deep-drawing processes
Duchene, Laurent ULg; Godinas, A.; Cescotto, Serge ULg et al

in Journal of Materials Processing Technology (2002), 125-126

This paper presents a constitutive law based on Taylor’s model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method ... [more ▼]

This paper presents a constitutive law based on Taylor’s model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material’s texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailApplication des barycentres en logique floue
Henry, Valérie ULg

in Mathématique et Pédagogie (2002), 139

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See detailLa guerre et la médecine d'une culture de paix. 5. Synopsis des armes non létales.
Pierard, Gérald ULg

in Revue Médicale de Liège (2002), 57(3), 176-8

Non lethal weapons may be harmful for people. The effects are accidental in some instances. For some weapons, they are clearly intentional. The eventuality of a fatal issue cannot be ruled out.

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See detailCombined implicit-explicit algorithms for non-linear structural dynamics
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg et al

in Revue Européenne des Éléments Finis (2002), 11(5), 565-591

To solve fast dynamic problems, an explicit method is the most adapted. But for slower dynamics, an implicit method is more stable. The industrial problems are governed by high frequency (impact ... [more ▼]

To solve fast dynamic problems, an explicit method is the most adapted. But for slower dynamics, an implicit method is more stable. The industrial problems are governed by high frequency (impact, ...) during short time intervals and slower dynamics (spring-back, ...) during other time intervals. The optimal solution is then to have both implicit algorithm and explicit methods readily available in the same code and to be able to switch automatically from one to another. Criteria that decide when to shift from a method to another have been developed here. Implicit balanced restarting conditions that annihilate numerical oscillations resulting for an explicit calculation are also proposed. [less ▲]

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See detailDesign of a foil-coiled inductor for the heating of steel wires
De coster, Jeroen; Deliège, Geoffrey ULg; Henrotte, François et al

in IEE Proceedings - Science, Measurement & Technology (2002), 149(5), 203-206

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See detailLe cas clinique du mois. Hepatite cholestatique apres administration de piperacilline.
Dietze, M. A.; Martin, Pierre ULg; Schaaf-Lafontaine, Nicole ULg

in Revue Médicale de Liège (2002), 57(9), 571-4

We describe a patient suffering from infection of the upper respiratory tract, who was treated with a dose of 4 x 4 g of piperacillin over 10 days. Two days after the end of the treatment, she developed ... [more ▼]

We describe a patient suffering from infection of the upper respiratory tract, who was treated with a dose of 4 x 4 g of piperacillin over 10 days. Two days after the end of the treatment, she developed jaundice and had elevated alkaline phosphatase, gammaglutamyltransferase and transaminases. After exclusion of viral hepatitis, a vascular problem, and gall stone disease, the possibility of piperacillin-induced hepatitis was discussed. Lymphocyte transformation test for piperacillin was positive, suggesting an immunological mechanism for the observed hepatopathy. The patient was discharged a few days after in good clinical condition and with reduced liver values. Cholestasis gradually decreased but was detectable for several weeks. The patient had a full clinical and biochemical recovery after 2 months. We conclude that short-term therapy with piperacillin can lead to the same type of hepatopathy as described for amoxycillin/clavulanic acid or antistaphylococcal penicillins. Positive lymphocyte transformation is compatible with an immunological mechanism. [less ▲]

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See detailResearch on Instruction in Physical Education. Review of the Research in Selected Roman Languages.
Piéron, Maurice ULg; Cloes, Marc ULg

in International Journal of Physical Education (2002), 39(1), 12-20

In French, the term "intervention" is used since a few years. The paper will: (1) deal with the topic of instruction limites to teachers' decisions and interventions during the interactive phase in ... [more ▼]

In French, the term "intervention" is used since a few years. The paper will: (1) deal with the topic of instruction limites to teachers' decisions and interventions during the interactive phase in teaching; during this phase, activities planned in the pre-interactive phase are implemented: the interactive phase concerns the task's presentation, the pupils' activity and the control of this activity in terms of behavioural management and of the quality of the eprformance (feedback); (2) refer to the main research methods used in gathering data, and (3) develop the main findings in the domain of instruction: teacher thinking and behaviour, pupils' thoughts and behaviour, management of the class or in other words control of pupils' behaviour. It is evident that thougts and behaviours are closely related and are part of the relationship between teachers and pupils. The paper focused only on texts appearing in French, Portuguese and Spanish published since 1997 in Physical eeducation journals and Proceeddings of international congresses. [less ▲]

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See detailEnzymatically prepared n-alkyl esters of glucuronic acid: The effect of hydrophobic chain length on surface properties
Blecker, Christophe ULg; Piccicuto, S.; Lognay, Georges ULg et al

in Journal of Colloid & Interface Science (2002), 247(2), 424-428

The effect of hydrophobic chain length on surface properties of enzymatically prepared n-alkyl esters of glucuronic acid are examined. Dynamic parameters from Hua and Rosen's mathematical model and ... [more ▼]

The effect of hydrophobic chain length on surface properties of enzymatically prepared n-alkyl esters of glucuronic acid are examined. Dynamic parameters from Hua and Rosen's mathematical model and equilibrium surface tension are presented for esters with octyl, decyl, dodecyl, and tetradecyl alkyl segments. Increasing the alkyl chain length has a significant influence on the surface activity. Decyl and dodecyl glucuronate exhibit an interesting adsorption speed associated with foaming capacity. Octyl glucuronate exhibits a micellar organization as its bulk concentration is over 10.68 mM. (C) 2002 Elsevier Science (USA). [less ▲]

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See detailRéduire la taille des classes dans l'enseignement fondamental : pour des discriminations vraiment positives...
Lafontaine, Dominique ULg

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2002), 11-12

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See detailDiversité génétique: du diagnostic à la conservation. Le cas du vison d'Europe
Libois, Roland ULg; Michaux, J.; Rosoux, René et al

in Annales de la Société des Sciences Naturelles de la Charente-Maritime (2002), 9(2), 219-223

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See detailCaractérisation physico-chimique de gommes végétales exsudées par quelques acacias du Burkina Faso
Djiré, O.; Ntema, P.; Zgoulli, S. et al

in Science et Technique (2002), 25(2), 37-47

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See detailComment j'explore ... une métastase orpheline d'un mélanome.
Henry, Frédérique ULg; Pierard, Claudine ULg; Arrese Estrada, Jorge ULg et al

in Revue Médicale de Liège (2002), 57(6), 405-7

A presumed melanoma metastasis is sometimes found without any evidence for the primary neoplasm. Such an orphan metastasis merits a complementary exploration. Searching for the primary melanoma must then ... [more ▼]

A presumed melanoma metastasis is sometimes found without any evidence for the primary neoplasm. Such an orphan metastasis merits a complementary exploration. Searching for the primary melanoma must then be performed using non invasive and clinically oriented methods. Beside a thorough skin examination, otorhinolaryngological, ophtalmic and gynecologic searches are recommended. In addition, paraclinical investigations are conducted according to the metastatic location, the gender and the functional complaints of the patient. The prognosis of these orphan metastases is not more dramatic than when the primary lesion is identified. Therapies are similar to those proposed in the classical presentation of the disease. [less ▲]

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See detailGlobal democratic consensus on neuropathological disease criteria.
Achim, Cristian; Auer, Roland; Bergeron, Catherine et al

in Lancet Neurology (2002), 1(6), 340

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See detailImpact of close habitat on the entomological diversity and abundance in carrot open fields.
Colignon, P.; Gaspar, Charles ULg; Haubruge, Eric ULg et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2002), 67(3), 481-6

Vegetable open fields areas have been increasing for the last decade in Wallonia (South part of Belgium), mainly in Hesbaye. To be in accordance with quality standards, especially in terms of agrochemical ... [more ▼]

Vegetable open fields areas have been increasing for the last decade in Wallonia (South part of Belgium), mainly in Hesbaye. To be in accordance with quality standards, especially in terms of agrochemical residues (R.M.L.), biological pest control was developed and reduces the insecticide use, leading to have safer fresh products. Carrot represents an important cultivated species in Wallonia. To asses the impact of close habitat on both pest (mainly aphids) and beneficial insects, carrot fields were investigated during all the production duration in 2000. Twelve fields between Waremme and Hannut were visited weekly from June to October. Insects were caught using yellow traps and determined to the family level. Approximately 90,000 insects belonging to 109 families were identified. Significant differences linked to field closed habitat were observed on 31 families. An increase of biodiversity in term of family number near set-asides and woody borders was observed. Evaluation of pest and beneficial diversity and density in vegetable crops was discussed to promote future IPM program. [less ▲]

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See detailFactor XIII a-positive dermal dendrocytes and shear wave propagation in human skin.
Hermanns-Lê, Trinh ULg; Uhoda, I.; Pierard, Claudine ULg et al

in European Journal of Clinical Investigation (2002), 32(11), 847-51

BACKGROUND: The in vivo interdependence between the phenotypic characteristics of dermal cells and the strain imposed on the tissue has not been studied thoroughly in humans. In particular the mechanical ... [more ▼]

BACKGROUND: The in vivo interdependence between the phenotypic characteristics of dermal cells and the strain imposed on the tissue has not been studied thoroughly in humans. In particular the mechanical force modulation of Factor XIII a expression in dermal dendrocytes (DD) remains unknown. MATERIALS AND METHODS: The present study compares the numerical density of Factor XIII a-positive DD and the in vivo shear wave velocity in the skin. The investigation was performed in 20 men of normal weight and 20 obese men before and after entering a slimming process. RESULTS: Excess cutaneous fat places the skin under increased intrinsic tension. The resonance running time measurement (RRTM) and the DD density were significantly reduced in overweight individuals. After a short-term but intense slimming process, the same individuals showed a trend to normalization of these two parameters without, however, reaching significance. Pooling all data yielded a significant logarithmic correlation between RRTM values and densities in Factor XIII a-positive DD. CONCLUSION: Factor XIII a expression in human DD may be partially regulated by the intrinsic resting tensions in the skin. [less ▲]

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See detailLes frais supportés par l'adjudicataire en cas de saisie-exécution immobilière
Georges, Frédéric ULg

in Journal des Tribunaux (2002)

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See detailLa châsse de saint Remacle (1263-1268) et Liège
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (2002), t. XIV, n° 298-299

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See detailPerformance de Acacia Auriculiformis (Cunn. A.) dans le système agroforestier au Sud-Bénin
Fonton, H. N.; Claustriaux, Jean-Jacques ULg; Agbahungba, G.

in Annales des Sciences Agronomiques du Bénin (2002), 3(1), 65-79

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See detailHIV resistance to antiretroviral drugs: Mechanisms, genotypic and phenotypic resistance testing in clinical practice
Blaise, Pierre ULg; Clevenbergh, P.; Vaira, Dolorès ULg et al

in Acta Clinica Belgica (2002), 57(4, Jul-Aug), 191-201

HIV resistance to antiretroviral agents is a major contributory cause of treatment failure. The dynamics of HIV replication, together with patient-, physician-, and drug-related factors, lead to emergence ... [more ▼]

HIV resistance to antiretroviral agents is a major contributory cause of treatment failure. The dynamics of HIV replication, together with patient-, physician-, and drug-related factors, lead to emergence of HIV resistant strains in most of the patients. Phenotypic assays look for an increase in the antiretroviral drug (ARV) concentration that inhibits 50% of the growth of the tested HIV strain (IC50), comparatively with a reference strain cultivated in parallel. Genotypic tests detect resistance mutations in the reverse transcriptase and protease genes by comparing the gene sequences of a resistant virus to those of a wildtype strain that has previously been described. The efficacy of each ARV class and each individual ARV is threatened by specific mutations and resistance mechanisms. In retrospective studies of genotypic or phenotypic resistance testing, baseline resistance tests results were correlated with virological outcomes. There is some evidence from prospective studies that resistance testing may have some benefits when used to choose salvage regimens. However, problems in the areas of test interpretation, patient compliance, availability of active drugs, and technical test performance limit the usefulness of resistance testing in clinical practice. This article reviews the mechanisms underlying HIV resistance, the principles of phenotypic and genotypic tests, and the use of these tests in clinical practice. [less ▲]

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See detailQuelques résultats d'une épreuve externe en éveil : initiation scientifique soumise aux élèves de cinquième année primaire en octobre 2001
Demonty, Isabelle ULg; Fagnant, Annick ULg; Straeten, Marie-Hélène

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2002), 9-10

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See detailDissociations between categorization and similarity judgements as a result of learning feature distributions
Thibaut, Jean-Pierre; Dupont, Myriam; Anselme, Patrick ULg

in Memory & Cognition (2002), 30(4), 647-656

A dissociation between categorization and similarity was found by Rips (1989). In one experiment, Rips found that a stimulus halfway between a pizza and a quarter was categorized as a pizza but was rated ... [more ▼]

A dissociation between categorization and similarity was found by Rips (1989). In one experiment, Rips found that a stimulus halfway between a pizza and a quarter was categorized as a pizza but was rated as more similar to a quarter. Smith and Sloman (1994) discussed these results in terms of the role of necessary and characteristic features. In two experiments, participants had to learn to categorize novel artificial shapes composed of a nonsalient necessary feature combined with a salient characteristic feature. Participants categorized stimuli on the basis of a necessary feature, whereas their similarity judgments relied on characteristic features. The role of deep (essential) features in dissociations is considered. Results are discussed in terms of the differences between requirements of categorization and similarity judgments. [less ▲]

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See detailEnergy Partitioning Between Latent And Sensible Heat Flux During The Warm Season At Fluxnet Sites
Wilson, Kell B.; Baldocchi, Dennis D.; Aubinet, Marc ULg et al

in Water Resources Research (2002), 38(12),

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See detailAre all glitazones the same?
Van Gaal, Luc; Scheen, André ULg

in Diabetes/Metabolism Research & Reviews (2002), 18 Suppl 2

This supplement focuses on the benefits of targeting insulin resistance through therapy with a new class of oral antidiabetic agents, the thiazolidinediones (TZDs) or 'glitazones'. There are important ... [more ▼]

This supplement focuses on the benefits of targeting insulin resistance through therapy with a new class of oral antidiabetic agents, the thiazolidinediones (TZDs) or 'glitazones'. There are important differences between the three TZD class members that warrant discussion to enable physicians to make rational and informed therapeutic choices between the agents. Overall the TZDs appear to be similar in their effects on blood glucose, as all class members have demonstrated effective glycaemic control, both as monotherapy and in combination with sulphonylureas, metformin or exogenous insulin. The safety profiles of the three agents are more diverse, with what appear to be 'TZD class effects', (probably mediated via activation of peroxisome proliferator-activated receptor gamma [PPAR gamma]) and 'TZD-specific effects', which are unique to each agent and may be a consequence of differing chemical structures. While rosiglitazone and pioglitazone share some class effects with troglitazone, they have several characteristics that define them as unique agents. By tackling the control of type 2 diabetes through direct effects on insulin resistance, the TZDs represent an important new therapeutic tool for healthcare professionals. [less ▲]

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See detailPolyester layered silicate nanohybrids by controlled grafting polymerization
Lepoittevin, Bénédicte; Pantoustier, Nadège; Alexandre, Michaël ULg et al

in Journal of Materials Chemistry (2002), 12(12), 3528-3535

Poly( epsilon-caprolactone) (PCL) layered silicate nanohybrids were synthesized by ring opening polymerization of epsilon-caprolactone according to a well-controlled coordination-insertion mechanism ... [more ▼]

Poly( epsilon-caprolactone) (PCL) layered silicate nanohybrids were synthesized by ring opening polymerization of epsilon-caprolactone according to a well-controlled coordination-insertion mechanism. Montmorillonites were surface-modified by non functional (trimethylhexadecylammonium) and hydroxy functional alkylammonium cations, i.e., (2-hydroxyethyl) dimethylhexadecylammonium. The hydroxy functions available at the clay surface were activated into tin( II or IV) or Al(III) alkoxide initiators for lactone polymerization, thus yielding surface-grafted PCL chains. The surface-grafted PCL chains were recovered by an ionic exchange reaction with lithium chloride and they were analyzed by size exclusion chromatography. The PCL molar mass was measured as a function of the hydroxy content of the clay that was modulated by exchanging the Na cations with mixtures of non-functional and hydroxy functional ammonium cations of different compositions. Nanohybrids were also characterized by small-angle X-ray diffraction, transmission electron microscopy and thermogravimetry. The PCL molar mass and the nanocomposite morphology (i.e., exfoliation and/or intercalation) were readily tuned by the content of the hydroxy groups available at the clay surface. Surface-grafted aluminium trialkoxide species proved highly efficient in initiating polymerization that leads to PCL chains of controlled molar mass and narrow molecular weight distribution with polydispersity indices as low as 1.2. [less ▲]

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See detailEveil des sociétés civiles en milieu urbain et organisations non gouvernementales: les exemples de Cotonou et de Lubumbashi
Pirotte, Gautier ULg; Poncelet, Marc ULg

in Autrepart : Revue de Sciences Sociales au Sud (2002), (23), 73-88

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See detailEnzymatic activity associated with class II HDACs is dependent on a multiprotein complex containing HDAC3 and SMRT/N-CoR.
Fischle, Wolfgang; Dequiedt, Franck ULg; Hendzel, Michael J et al

in Molecular Cell (2002), 9(1), 45-57

Histone deacetylases (HDACs) play a key role in regulating eukaryotic gene expression. The HDAC domain, homologous to the yeast repressors RPD3 and HDA1, is considered necessary and sufficient for ... [more ▼]

Histone deacetylases (HDACs) play a key role in regulating eukaryotic gene expression. The HDAC domain, homologous to the yeast repressors RPD3 and HDA1, is considered necessary and sufficient for enzymatic activity. Here, we show that the catalytic domain of HDAC4 interacts with HDAC3 via the transcriptional corepressor N-CoR/SMRT. All experimental conditions leading to the suppression of HDAC4 binding to SMRT/N-CoR and to HDAC3 result in the loss of enzymatic activity associated with HDAC4. In vitro reconstitution experiments indicate that HDAC4 and other class II HDACs are inactive in the context of the SMRT/N-CoR-HDAC3 complex and do not contribute to its enzymatic activity. These observations indicate that class II HDACs regulate transcription by bridging the enzymatically active SMRT/N-CoR-HDAC3 complex and select transcription factors independently of any intrinsic HDAC activity. [less ▲]

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See detailLes "sans-papiers" et les régularisations dans l'Union Européenne à la lumière du cas belge
Martiniello, Marco ULg

in Revue des Affaires Européennes (2002), 11ème-12ème Année

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See detailActive insulation in dwellings
Embrechts, Jean-Jacques ULg; Caule, Patrice; Tamaz, Patrick et al

in NAG journaal (2002), 162

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See detailEvolution des donnees maternelles et perinatales recueillies en routine entre 1980 et 1998 a la maternite de reference de Rutshuru en Republique democratique du congo. Deces maternels et interventions obstetricales.
Mugisho, Etienne; Dramaix, Michele; Porignon, Denis ULg et al

in Sante (Montrouge, France) (2002), 12(2), 247-51

This report is the first of 2 papers that analyse data routinely collected in the maternity ward of Rutshuru (democratic Republic of Congo). The present work describes the evolution of caesarean section ... [more ▼]

This report is the first of 2 papers that analyse data routinely collected in the maternity ward of Rutshuru (democratic Republic of Congo). The present work describes the evolution of caesarean section, maternal deaths and the associated risk factors. MATERIAL AND METHODOLOGY: Between 1980 and 1998, data on 13,042 deliveries were collected. Characteristics, mortality, morbidity of mothers and new-borns and obstetrical interventions were recorded. The statistical analyses applied included khi2, t-test, simple linear and multiple logistic regression. RESULTS: Fifteen percent had a caesarean section and 1.9% of women died. When referred to the expected births during the period, these numbers led to a ratio of 150 maternal deaths for 100,000 expected births and a ratio of caesarean section of 1.2%. At admission, 35% of the women presented at least one of the four risk factors used for reference. The proportion of women with at least one of the 4 risk factors went up from 26.1% to 39.5%. The proportion of caesarean sections went up from 1.9% to 34.1%. The proportion of maternal deaths remained constant except in 1988, 1994, 1995 and 1997. Three of the four reference factors, the Baudeloque diameter, parity and height were associated with caesarean section. Age only was associated with maternal death. Education and marital status were both associated with caesarean section and maternal death. CONCLUSION: This analysis shows high levels of maternal mortality and caesarean section. The authors recommend to analyse on a larger scale the value of the reference factors used in antenatal services and to standardise indications for the different obstetrical interventions. [less ▲]

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See detailVictimisation dans les petites et moyennes entreprises
Lemaître, André ULg

in Sécurité privée (2002), N°13

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See detailThe effect of an acute energy deficit on the hormone profile of dominant follicles in dairy cows
Comin, Antonella; Gerin, Daniele; Cappa, Alberto et al

in Theriogenology (2002), 58

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See detailPlacental GH, IGF-I, IGF-binding protein-1 and leptin during a glucose challenge test in pregnant women : relation with maternal body weight, glucose tolerance, and birth weight
Verhaeghe, J.; Pintiaux, Axelle ULg; Van Herck, E. et al

in Journal of Clinical Endocrinology and Metabolism (2002), 87(6), 2875-2882

The prediction of birth weight may be improved by the measurement of hormones or growth factors in the mother. We measured body weight (BW) and plasma levels of placental GH (PGH), IGF-I, IGF-binding ... [more ▼]

The prediction of birth weight may be improved by the measurement of hormones or growth factors in the mother. We measured body weight (BW) and plasma levels of placental GH (PGH), IGF-I, IGF-binding protein-1 (IGFBP-1), and leptin at the time of the glucose challenge test (GCT) in 289 women, who were pregnant with a single fetus, between 24 and 29 wk gestational age (GA). Delivery occurred 12 +/- 2 (mean +/- SD) wk later. First, we examined which variables regulate these hormonal factors. Multiple regression showed that PGH concentrations were determined by GA at sampling and were negatively related to BW. IGF-I levels were mainly determined by PGH, and also by insulin, BW, and (negatively) age. IGFBP-1 concentrations were negatively determined by BW, insulin, and IGF-I. BW was also a powerful determinant of leptin levels, with insulin as a less robust determinant. Second, we examined the relation to glucose levels. PGH, IGF-I, and IGFBP-1 concentrations were not correlated with post-GCT glucose levels and were comparable in women with a normal or disturbed GCT (glucose >/=7.8 mmol/liter; n = 72). Finally, we examined the relation with birth weight and placental weight. Birth weight, corrected for GA and stratified into percentile groups, and the ponderal index at birth were strongly related to maternal BW, but not to maternal PGH, IGF-I, or IGFBP-1 levels. Neither was maternal leptin related to birth weight, but leptin concentrations were slightly higher in women who delivered obese babies. Placental weight was not related to any of the hormonal factors. This prospective study indicates that the variation in circulating PGH, IGF-I, IGFBP-1, and leptin between 24 and 29 wk of pregnancy is strongly dependent on maternal BW, but is unrelated to glucose tolerance. In addition, the measurement of PGH, IGF-I, IGFBP-1, or leptin at the time of the GCT is not useful clinically to predict birth weight. [less ▲]

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See detailQuantitative dilatometric analysis of intercritical annealing in a low-silicon TRIP steel
Zhao, Lie; Kop, T. A.; Rolin, Valéry et al

in Journal of Materials Science (2002), 37

In this work, an evaluation method to calculate the austenite fraction during continuous heating and isothermal annealing from dilatometric data is proposed. By means of a single reference measurement to ... [more ▼]

In this work, an evaluation method to calculate the austenite fraction during continuous heating and isothermal annealing from dilatometric data is proposed. By means of a single reference measurement to determine a scaling factor correcting for experimental errors, a framework is created to determine the austenite fraction as a function of time and temperature. In the evaluation of the dilatometric data the effect of the changing carbon concentration in austenite phase is taken into account. The method is applied to dilatometric data for a 0.16C-1.5Mn-0.4Si (wt%) low-silicon transformation induced plasticity (TRIP) multiphase steel. Three typical dilatometric data are obtained by heating the material to 750°C, 800°C or 900°C, which leads to three different microstructures consisting of (1) ferrite, cementite and austenite, (2) ferrite and austenite and (3) full austenite, respectively. The calculated results using the proposed new method are compared with the results from thermodynamic analysis and those from quantitative microscopic analysis. Significant inter-test discrepancies are observed. [less ▲]

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See detailRemarques sur le vocabulaire grec de la traduction
Rochette, Bruno ULg

in Revue Belge de Philologie et d'Histoire (2002), 80

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See detailA duality principle for homogeneous vector fields with applications
Moreau, Luc; Aeyels, Dirk; Peuteman, Joan et al

in Systems & Control Letters (2002), 47(1), 37-46

We introduce a duality principle for homogeneous vectorfields. As an application of this duality principle, stability and boundedness results for negative order homogeneous differential equations are ... [more ▼]

We introduce a duality principle for homogeneous vectorfields. As an application of this duality principle, stability and boundedness results for negative order homogeneous differential equations are obtained, starting form known results for positive order homogeneous differential equations. [less ▲]

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See detailLe contrat de travail et la signature électronique
Kefer, Fabienne ULg; Barth, H.

in Orientations : la Revue du Droit Social et de la Gestion du Personnel (2002)

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See detailRate coefficient determination in charge transfer reactions
Vaeck, Nathalie; Baloïtcha, Ezinvy; Desouter, Michèle ULg et al

in International Journal of Molecular Sciences (2002), 3

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See detailMR1905401,, Khan, A. R. and Elkamel, A., Mathematical model for heat transfer mechanism for particulate System, Appl. Math. Comput.
Rochus, Pierre ULg

in Applied Mathematics and Computation (2002), 129(2-3), 295--316

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See detailLa guerre et la médecine d'une culture de paix. 3. Synopsis des armes chimiques.
Pierard, Gérald ULg

in Revue Médicale de Liège (2002), 57(1), 49-52

A variety of chemical components can be used as warfare threats directly targeting humans. They can be classified according to their main biological effects as nerve agents, vesicants, lung damaging ... [more ▼]

A variety of chemical components can be used as warfare threats directly targeting humans. They can be classified according to their main biological effects as nerve agents, vesicants, lung damaging agents, cyanogen agents and incapacitants. Other chemical agents are water and food contaminants. Still other less aggressive compounds are mainly used to control riots. Smokes, flame materials and herbicides belong to other classes of chemical agents of the warlike armamentum exhibiting a direct effect on man. [less ▲]

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See detailRisk factors for hepatitis C: past, present and future
Delwaide, Jean ULg; Bourgeois, N.; Colle, I. et al

in Acta Gastro-Enterologica Belgica (2002), 65(2), 87-89

Patients at risk for hepatitis C (HCV) are those exposed to a major risk factor (i.e. blood transfusion prior 1990, and intravenous drug abuse), and those exposed to a minor risk factor (sexual, mother-to ... [more ▼]

Patients at risk for hepatitis C (HCV) are those exposed to a major risk factor (i.e. blood transfusion prior 1990, and intravenous drug abuse), and those exposed to a minor risk factor (sexual, mother-to-infant transmission, household contact, nosocomial contamination). The present paper aims to review the current and past modes of transmission of the virus C. [less ▲]

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See detailDéminéralisation et ostéoporose: une confusion sémantique
Kaiser, Marie-Joëlle ULg; Malaise, Michel ULg

in Revue Médicale de Liège (2002), 57(5), 274-279

Osteoporosis is the most frequent demineralizing disease. However, when a demineralized vertebra is identified, other diseases must be ruled out in the course of diagnosis. Through three clinical cases ... [more ▼]

Osteoporosis is the most frequent demineralizing disease. However, when a demineralized vertebra is identified, other diseases must be ruled out in the course of diagnosis. Through three clinical cases, we analyze pitfalls that have delayed the diagnosis of one rare, but unfortunately lethal, aetiology: multiple myeloma. [less ▲]

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