References of "2003"
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See detailConditions for elasto-plastic strain localization in unsaturated soils
Charlier, Robert ULg; Baltov, A.; Datcheva, Maria et al

in Journal of Theoretical and Applied Mechanics (2003), 33(3), 101-118

The necessary and sufficient conditions for elasto-plastic strain localization initiation in unsaturated soli massifs are proposed. Unsaturated behaviour is described unsing net stress and suction as ... [more ▼]

The necessary and sufficient conditions for elasto-plastic strain localization initiation in unsaturated soli massifs are proposed. Unsaturated behaviour is described unsing net stress and suction as independent stress variables and modifying the basic constitutive surface parameters and hardening rules to consider the role of suction. The process is accepted to be static isothermal. The conception that the localization band initiates due to loss of stability of deformation process is used. In that case, the rates of process measures bifurcate. A special example is given to illustrate the application of the obtained conditions. [less ▲]

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See detailFuguer: ... pour fuir quoi ? Étude sur le profil et le vécu des fugueurs en Belgique
Van de Water, G.; Vettenburg, N.; Glowacz, Fabienne ULg

Book published by Ed. Fondation Roi Baudouin (2003)

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See detailLe cocher de Mithra
Swennen, Philippe ULg

in Religious themes and texts of pre-Islamic Iran and Central Asia (Studies in honour of Professor Gherardo Gnoli on the occasion of his 65th birthday on 6th December 2002) (2003)

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See detailDeciphering the impaired cytokine cascades in chronic leg ulcers (review).
Quatresooz, Pascale ULg; Henry, Frédérique ULg; Paquet, Philippe ULg et al

in International Journal of Molecular Medicine (2003), 11(4), 411-8

Chronic leg ulcers are typically wounds that do not heal at a normal rate. Impaired healing appears to be due to primary microvascular changes and it is aggravated by ongoing bacteria-driven vasculitis ... [more ▼]

Chronic leg ulcers are typically wounds that do not heal at a normal rate. Impaired healing appears to be due to primary microvascular changes and it is aggravated by ongoing bacteria-driven vasculitis. The various cytokines identified in experimental wounds are also present in leg ulcers. VEGF is strongly implicated as a promoter of blood vessel growth in patients with venous disease. In addition, there is good evidence of increased expression of bFGF, TGF-beta1, and PDGF in lipodermatosclerosis. All of these growth factors are involved in wound healing. Upregulated TGF-beta1 is probably one of the main causes of the fibrosis observed in lipodermatosclerosis. In leg ulcers, cytokines appear to be trapped in the perivascular fibrinoid deposits. It is not the nature and amount of cytokines that are inadequate in leg ulcers, but rather their spatial distribution. Dermal dendrocytes (DD) are resident factor XIIIa-enriched macrophages. They likely play a role in tissue repair when boosted adequately. New therapies aiming at helping the release of cytokines by DD apparently promote and improve the healing phase. [less ▲]

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See detailThe NDWI as a drought index applied to Belgium and Heilongjiang
Tychon, Bernard ULg; Pêcheur, Céline; Ozer, Pierre ULg

in Tychon, Bernard (Ed.) Belgian and Chinese Crop Growth Monitoring Systems: comparison, adaptation and improvement (2003)

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See detailMycoplasma bovis : synthèse des connaissances actuelles
Thomas, Anne; Mainil, Jacques ULg; Linden, Annick ULg

in Annales de Médecine Vétérinaire (2003), 147(1, FEB-MAR), 23-39

Mycoplasmas frequently infect cattle. Amongst them, M. Bovis is the most pathogenic species in countries free from contagious bovine pleuropneumonia because it is responsible for bronchopneumonia ... [more ▼]

Mycoplasmas frequently infect cattle. Amongst them, M. Bovis is the most pathogenic species in countries free from contagious bovine pleuropneumonia because it is responsible for bronchopneumonia, arthritis and mastitis, and is thus associated with strong economic losses. Several studies have shown the frequency of M. bovis in Europe and the spread of antibiotic-resistant strains. Considering the absence of vaccine in Europe, it is essential to understand this bacteria in order to control the infection in cattle. In this context, this paper aims at summarizing the current knowledge about M. bovis. [less ▲]

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See detailLe système accentuel de l'interlangue d'apprenants francophones du néerlandais
Rasier, Laurent ULg

in Mettouchi, A.; Ferré, G. (Eds.) Actes du colloque international "Interfaces prosodiques" (2003)

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See detailMultiple mechanisms control brain aromatase activity at the genomic and non-genomic level
Balthazart, Jacques ULg; Baillien, Michelle; Charlier, Thierry ULg et al

in Journal of Steroid Biochemistry & Molecular Biology (2003), 86

Evidence has recently accumulated indicating that aromatase activity in the preoptic area is modulated in parallel by both slow (hours to days) genomic and rapid (minutes to hours) non-genomic mechanisms ... [more ▼]

Evidence has recently accumulated indicating that aromatase activity in the preoptic area is modulated in parallel by both slow (hours to days) genomic and rapid (minutes to hours) non-genomic mechanisms. We review here these two types of control mechanisms and their potential contribution to various aspects of brain physiology in quail. High levels of aromatase mRNA, protein and activity (AA) are present in the preoptic area of this species where the transcription of aromatase is controlled mainly by steroids. Estrogens acting in synergy with androgens play a key role in this control and both androgen and estrogen receptors (ER; alpha and beta subtypes) are present in the preoptic area even if they are not necessarily co-localized in the same cells as aromatase. Steroids have more pronounced effects on aromatase transcription in males than in females and this sex difference could be caused, in part, by a sexually differentiated expression of the steroid receptor coactivator 1 in this area. The changes in aromatase concentration presumably control seasonal variations as well as sex differences in brain estrogen production. Aromatase activity in hypothalamic homogenates is also rapidly (within minutes) down-regulated by exposure to conditions that enhance protein phosphorylation such as the presence of high concentrations of calcium, magnesium and ATP. Similarly, pharmacological manipulations such as treatment with thapsigargin or stimulation of various neurotransmitter receptors (alpha-amino-3-hydroxy-methyl-4-isoxazole propionic acid (AMPA), kainate, and N-methyl-d-aspartate (NMDA)) leading to enhanced intracellular calcium concentrations depress within minutes the aromatase activity measured in quail preoptic explants. The effects of receptor stimulation are presumably direct: electrophysiological data confirm the presence of these receptors in the membrane of aromatase-expressing cells. Inhibitors of protein kinases interfere with these processes andWestern blotting experiments on brain aromatase purified by immunoprecipitation confirm that the phosphorylations regulating aromatase activity directly affect the enzyme rather than another regulatory protein. Accordingly, several phosphorylation consensus sites are present on the deduced amino acid sequence of the recently cloned quail aromatase. Fast changes in the local availability of estrogens in the brain can thus be caused by aromatase phosphorylation so that estrogen could rapidly regulate neuronal physiology and behavior. The rapid as well as slower processes of local estrogen production in the brain thus match well with the genomic and non-genomic actions of steroids in the brain. These two processes potentially provide sufficient temporal variation in the bio-availability of estrogens to support the entire range of established effects for this steroid. [less ▲]

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See detailIs the feeling of familiarity driven by weak recollection as well as by an independent familiarity mechanism?
Montaldi, Daniela; Bastin, Christine ULg; Venables, Louise et al

in Journal of Cognitive Neuroscience (2003), 15(Supplemental), 179

The aim of this experiment is to examine how recollection and familiarity change over time and whether there is a qualitative difference between familiar items that were previously recollected and items ... [more ▼]

The aim of this experiment is to examine how recollection and familiarity change over time and whether there is a qualitative difference between familiar items that were previously recollected and items that have always been familiar. It might be that, when an item is initially recollected and becomes just familiar after a delay, this form of familiarity is actually a weak and partial recollection, qualitatively different from mere familiarity. To address this issue, a task have been developed in which, at study, participants encoded two series of 100 pictures representing scenes under respectively shallow and deep encoding conditions. Memory for these pictures was tested by means of a yes-no recognition test. Recognised items were classified as recollected or as familiar. Half of the pictures from each encoding condition were tested after 10 minutes and the other half were tested after 2 days. The results indicated that recollection decreased after 2 days while familiarity increased (deep encoding condition) or did not change (shallow encoding condition). This suggests that, among the items judged as familiar after 2 days, some items would have been recollected after 10 minutes and some were initially already familiar. Because deep encoding produced a higher proportion of recollection at the 10-minute interval, the proportion of recollection-changed-into-familiarity responses should be greater in this condition than in the shallow encoding condition. Whether there is a qualitative difference between these responses and pure familiarity responses should be explored in a fMRI experiment. [less ▲]

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See detailStromatopogon cladoniae sp. nova, a remarkable new lichenicolous coelomycete from Belgium
Diederich, Paul; Sérusiaux, Emmanuël ULg

in Bibliotheca Lichenologica (2003), 86

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See detailÉlaboration d'une base de données en vue de l'informatisation du catalogue de la cartothèque de l'Unité de documentation des Sciences de la Terre de l'Université de Liège
Borsus, Olivier ULg

Master's dissertation (2003)

Ce mémoire est destiné à l'Unité de Documentation (U.D.) des Sciences de la Terre de l'Université de Liège et consiste en l'élaboration d'une base de données pour le catalogue de son fonds cartographique ... [more ▼]

Ce mémoire est destiné à l'Unité de Documentation (U.D.) des Sciences de la Terre de l'Université de Liège et consiste en l'élaboration d'une base de données pour le catalogue de son fonds cartographique. En effet, l'interface LIBER utilisée à l'Université ne répond pas entièrement aux attentes de l'U.D en terme de critères de recherche spécifiques aux documents cartographiques. Par conséquent il était nécessaire de réaliser une interface conviviale et pratique pour la recherche et la saisie des références de ces cartes. Le logiciel utilisé est FileMaker Pro 5. Pour faciliter l'utilisation de cette base de données, un thésaurus reprenant tous les pays du monde a été créé. A cette fin, les difficultés dues aux changements de noms régionaux et nationaux résultant des évolutions historiques et politiques au fil du temps ont fait l'objet d'une attention particulière. [less ▲]

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See detailSaint Remacle de Malmedy et de Stavelot. Entre mythe et réalité
George, Philippe ULg

in « Le monastère de Wavreumont dans l’histoire » (1er-3 mars 2001) (2003)

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See detailPresent-day vertical crustal motion and active faulting in the Roer graben
Camelbeeck, Thierry; Warnant, René ULg; Vanneste, K. et al

Conference (2003)

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See detailSmall Finds from the Acropolis (F Field)
Van der Stede, Véronique ULg; Jans, Greta; Debruyne, Michel

in Lebeau, Marc; Suleiman, Antoine (Eds.) Subartu X. Tell Beydar, Five Seasons of Excavations (1995-1999), A Preliminary Report (2003)

 Cet article a pour objectif de présenter une série d’objets mis au jour au cours des fouilles menées sur la terrasse supérieure de la cité de Tell Beydar.

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See detailNudging epidermal field cancerogenesis by imiquimod.
Uhoda, Isabelle; Quatresooz, Pascale ULg; Pierard, Claudine ULg et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (2003), 206(4), 357-60

BACKGROUND: The coexistence of malignancies close to each other on the skin has been occasionally reported. The concept of field cancerogenesis applies to such cases. Given the purported mechanism of ... [more ▼]

BACKGROUND: The coexistence of malignancies close to each other on the skin has been occasionally reported. The concept of field cancerogenesis applies to such cases. Given the purported mechanism of action of imiquimod, it should not be surprising that this treatment could inhibit epidermal field cancerogenesis. AIM: To assess the effect of imiquimod applied twice weekly on incipient bowenoid changes disclosed in the vicinity of basal cell carcinomas. MATERIALS AND METHOD: Biopsies were taken before treatment and after 4-6 weeks and 12 weeks of imiquimod treatment. RESULTS: Large atypical bowenoid keratinocytes and dyskeratotic cells were cleared in time while factor-XIIIa-positive dermal dendrocytes appeared boosted and admixed with a brisk lymphocytic infiltration. CONCLUSION: Epidermal field cancerogenesis appears to be controlled by imiquimod. Dermal dendrocytes might play a pivotal role in this regression phenomenon. [less ▲]

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See detailGrowth hormone (GH) secretion in patients with childhood-onset GH deficiency: Retesting after one year of therapy and at final height
Thomas, Muriel; Massa, Guy; Maes, Maes et al

in Hormone Research (2003), 59(1), 7-15

Background. Recent studies have shown that many patients treated with growth hormone (GH) during childhood because of idiopathic GH deficiency (GHD) are no longer GH deficient when retested after ... [more ▼]

Background. Recent studies have shown that many patients treated with growth hormone (GH) during childhood because of idiopathic GH deficiency (GHD) are no longer GH deficient when retested after cessation of GH therapy when final height is achieved. These patients are labelled as transient GHD. We hypothesized that normalization of GH secretion in transient GHD could occur earlier during the course of GH treatment, which could allow earlier cessation of GH treatment. Methods: In a retrospective study, GH secretion was re-evaluated after cessation of GH treatment at final height in 43 patients diagnosed during childhood as idiopathic GHD 10 with multiple pituitary hormonal deficiencies (MPHD) and 33 with isolated GHD ([sGHD]). In a prospective study, GH secretion was re-assessed after interruption of GH treatment given for 1 year in 18 children with idiopathic GHD (2 MPHD, 16 IsGHD). GH secretion was evaluated by glucagon or insulin stimulation tests. Results: In the retrospective study, all the 10 patients with MPHD and 64% of the 33 patients with IsGHD were still deficient at re-evaluation using the paediatric criteria to define GHD (GH peak < 10 ng/ml at provocative test). The proportion of persisting deficiency was greater in patients with complete IsGHD (86%, 12/14 patients) than in patients with partial IsGHD (47%, 9/19 patients). With the criteria proposed in adulthood (GH peak <3 ng/ml), all the 10 patients with MPHD were still considered to be deficient. In contrast, only 15% (5/33 patients) with IsGHD had a maximal GH value < 3 ng/ml (36% of the 14 patients with complete IsGHD and none of the 19 patients with partial IsGHD). In the prospective study, after interruption of GH therapy given for 1 year, the 2 patients with MPHD were still GHD at re-evaluation and they resumed GH treatment. Among the 16 patients with IsGHD, 13 (81%) were still deficient (peak response < 10 ng/ml) after 1 year. Two of the 3 patients in whom GHD was not confirmed at retesting after 1 year GH showed again a deficient response at second retesting. Conclusions: Although many patients diagnosed with IsGHD during childhood have a normalized GH secretory capacity when retested during adulthood, early retesting after interruption of GH treatment given for 1 year during childhood does not enable to determine if GH therapy has to be discontinued before cessation of growth. Copyright (C) 2003 S. Karger AG, Basel. [less ▲]

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See detailEffect of imbalance between energy and nitrogen supplies on microbial protein synthesis in growing double-muscled Belgian Blue bulls.
Valkeners, Damien; Beckers, Yves ULg; Piron, Fabien ULg et al

in Proceeding of the British Society of Animal Science 2003 (2003)

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