References of "2003"
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See detailOptimal design of outdoor lighting systems by genetic algorithms - Discussion
Embrechts, Jean-Jacques ULg

in Lighting Research & Technology (2003), 35(3), 278-280

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See detailMuscle relaxants in neurosurgical anaesthesia: a critical appraisal.
Hans, Pol ULg; Bonhomme, Vincent ULg

in European Journal of Anaesthesiology (2003), 20(8), 600-5

The use of muscle relaxants, considered until recently as common practice in current neurosurgical anaesthesia protocols, becomes increasingly more questionable today. The reasons rely on the evolution of ... [more ▼]

The use of muscle relaxants, considered until recently as common practice in current neurosurgical anaesthesia protocols, becomes increasingly more questionable today. The reasons rely on the evolution of neurosurgery including the advent of new surgical techniques, the evolution of anaesthesia having the benefit of new drugs and devices, and the rationale for using muscle relaxants balanced against their potential side-effects and possible pharmacodynamic alterations in neurosurgical patients. [less ▲]

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See detailDistinct T cell subsets and cytokine production in cultures derived from transformation zone and squamous intraepithelial lesion biopsies of the uterine cervix.
Jacobs, Nathalie ULg; Renard, Isabelle; Al-Saleh, Walid et al

in American Journal of Reproductive Immunology (2003), 49(1), 6-13

PROBLEM: The characterization of lymphocytes issued from squamous intraepithelial lesions (SIL) and from the transformation zone (TZ), where the majority of SIL occur, is important to understand the role ... [more ▼]

PROBLEM: The characterization of lymphocytes issued from squamous intraepithelial lesions (SIL) and from the transformation zone (TZ), where the majority of SIL occur, is important to understand the role of immunity in SIL development. METHOD OF STUDY: We compared lymphocyte populations of the TZ and SIL with those of normal exocervix, using a technique allowing for the isolation of lymphocytes, either from the epithelium or from the underlying stroma of small biopsies. RESULTS: The majority of cells derived from the epithelium of all biopsies were CD8+ T cells. Some SIL-derived cultures were characterized by an increased proportion of activated TCRgammadelta+. The production of the immunosuppressive cytokine IL10 was significantly higher in lymphocyte cultures from the normal TZ in comparison with the exocervix. A decreased percentage of effector T cells was observed in cultures derived from the stroma of normal TZ (TCRgammadelta+) or SIL (CD8+) in comparison with the exocervix. CONCLUSIONS: Our results suggest that a low proportion of effector T cells and IL10 production could contribute to the predisposition of the TZ to the development of SIL and to the progression of SIL to cervical cancer. [less ▲]

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See detailCiel ouvert : la fin de l'attente
Dumoulin, André ULg

in Sur, Serge; Roche, Jean-Jacques (Eds.) Annuaire français de relations internationales 2003 (2003)

Le 1er janvier 2002 entrait en vigueur le traité sur le régime « Ciel ouvert ». Longtemps attendu, cette mesure de confiance et de sécurité repose sur la surveillance aérienne codifiée de pratiquement ... [more ▼]

Le 1er janvier 2002 entrait en vigueur le traité sur le régime « Ciel ouvert ». Longtemps attendu, cette mesure de confiance et de sécurité repose sur la surveillance aérienne codifiée de pratiquement tous les territoires d’États membres de l’OSCE, de l’Atlantique à l’Oural. Pur produit de la guerre froide, « Ciel ouvert » avait pour objectif de réduire la suspicion entre les États Parties. L’instabilité qui règne aujourd’hui dans certaines régions, le caractère complémentaire du régime par rapport au traité sur les Forces conventionnelles en Europe (FCE) et l’ouverture possible et à terme de « Ciel ouvert » à des nouvelles tâches grâce aux nouvelles technologies de surveillance aérienne, offrent à ce traité de nouvelles opportunités. [less ▲]

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

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

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

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

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See detailCassini UVIS and HST STIS Time-Resolved Jupiter Auroral Data Compared to QP Radio Bursts
Pryor, W.; Hospodarsky, G.; Stewart, I. et al

Poster (2003)

The Cassini Ultraviolet Imaging Spectrograph (UVIS) observed Jupiter in a 4-sec integration "high time-resolution mode" on Jan 8, 13-14, and 20-21 in 2001. In this mode Extreme-Ultraviolet and Far ... [more ▼]

The Cassini Ultraviolet Imaging Spectrograph (UVIS) observed Jupiter in a 4-sec integration "high time-resolution mode" on Jan 8, 13-14, and 20-21 in 2001. In this mode Extreme-Ultraviolet and Far-Ultraviolet spectra were obtained with reduced spectral and spatial resolution in order to study rapid variations in H2 band and H Lyman alpha emission. Previous work has shown that the region inside Jupiter's main auroral ovals contains highly variable spots of emission (auroral flares) that persist for typically 1 or 2 minutes. This duration is similar to that in Jupiter's quasi-periodic (QP) radio bursts. We compare UVIS data to simultaneous Galileo Plasma Wave Subsystem (PWS) and Cassini Radio and Plasma Wave Subsystem (RPWS) observations. Jan 8 was an active period for UV variability, that we associate with polar auroral flares. There is a correlation between the radio and UV bursts in this period, suggesting that they are related phenomena. We will also explore coordinated Hubble Space Telescope Imaging Spectrograph (STIS) time-tagged UV images from Dec 14 and Dec 16, 2000, and Jan 13-14, and Jan 20-21, 2001 to study the spatial properties of the auroral flares. The auroral emissions inside the main oval were most prominent in the Dec 14, 2000 HST data. We acknowledge support from the Cassini Project, the Space Telescope Science Institute, and the NASA OSS Minority University Initiative. [less ▲]

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See detailMemory processing during human sleep as assessed by functional neuroimaging.
Maquet, Pierre ULg; Peigneux, Philippe ULg; Laureys, Steven ULg et al

in Revue Neurologique (2003), 159(11 Suppl), 627-9

Sleep is believed to participate in memory consolidation, possibly through off-line processing of recent memory traces. In this paper, we summarize functional neuroimaging data testing this hypothesis ... [more ▼]

Sleep is believed to participate in memory consolidation, possibly through off-line processing of recent memory traces. In this paper, we summarize functional neuroimaging data testing this hypothesis. First, sleep deprivation disrupts the processing of recent memory traces and hampers the changes in functional segregation and connectivity which underpin the gain in performance usually observed in subjects allowed to sleep on the first post-training night. Second, experience-dependent changes in regional brain activity occur during post-training sleep. These changes are shown to be related to the processing of high-level material and to be modulated by the amount of learning achieved during the training session. These changes do not involve isolated brain areas but entire macroscopic cerebral networks. These data suggest a role for sleep in the processing of recent memory traces. [less ▲]

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See detailThe Radcalwet observation campaign: relative and absolute calibration of WVR's
Pottiaux, Eric; Becker, M.; Buerki, B. et al

Conference (2003)

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See detailJean Michel-Bonvin : Figures de sociologues. Introduction à l'epistémologie sociologique
Jacquemain, Marc ULg

in Schweizerische Zeitschrift für Soziologie = Revue Suisse de Sociologie (2003), 29

Jean-Michel Bonvin introduces the reader to the sociological method through the study of eight classical sociologists throught the 19th and 20th centurites : Comte, Tocqueville, Marx, Durkheim, Weber ... [more ▼]

Jean-Michel Bonvin introduces the reader to the sociological method through the study of eight classical sociologists throught the 19th and 20th centurites : Comte, Tocqueville, Marx, Durkheim, Weber, Simmel, Goffman and Parsons [less ▲]

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See detailReconnaissance de la personnalité juridique et aperçu des différentes formes sociétaires
Thirion, Nicolas ULg

in Thirion, Nicolas; Caprasse, Olivier; Benoit-Moury, Anne (Eds.) et al La constitution de sociétés et la phase de démarrage d'entreprises (2003)

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See detailMechanical behaviour of chalk reservoir: Numerical modelling of water sensitivity and time dependence effects
Collin, Frédéric ULg; Cui, Yu Jun; Schroeder, Christian ULg et al

Conference (2003)

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore ... [more ▼]

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore fluids by introducing the concept of suction. Secondly, a model able to reproduce time dependence behaviour. Eventually, the paper gives a simulation of an academic reservoir during depletion and waterflooding phase. [less ▲]

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See detailModeling lactation curves and estimation of genetic parameters for first lactation test-day records of French Holstein cows.
Druet, Tom ULg; Jaffrezic, F.; Boichard, D. et al

in Journal of Dairy Science (2003), 86(7), 2480-90

Several functions were used to model the fixed part of the lactation curve and genetic parameters of milk test-day records to estimate using French Holstein data. Parametric curves (Legendre polynomials ... [more ▼]

Several functions were used to model the fixed part of the lactation curve and genetic parameters of milk test-day records to estimate using French Holstein data. Parametric curves (Legendre polynomials, Ali-Schaeffer curve, Wilmink curve), fixed classes curves (5-d classes), and regression splines were tested. The latter were appealing because they adjusted the data well, were relatively insensitive to outliers, were flexible, and resulted in smooth curves without requiring the estimation of a large number of parameters. Genetic parameters were estimated with an Average Information REML algorithm where the average information matrix and the first derivatives of the likelihood functions were pooled over 10 samples. This approach made it possible to handle larger data sets. The residual variance was modeled as a quadratic function of days in milk. Quartic Legendre polynomials were used to estimate (co)variances of random effects. The estimates were within the range of most other studies. The greatest genetic variance was in the middle of the lactation while residual and permanent environmental variances mostly decreased during the lactation. The resulting heritability ranged from 0.15 to 0.40. The genetic correlation between the extreme parts of the lactation was 0.35 but genetic correlations were higher than 0.90 for a large part of the lactation. The use of the pooling approach resulted in smaller standard errors for the genetic parameters when compared to those obtained with a single sample. [less ▲]

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See detailArc-en-ciel et milieux d’affaires. Les coulisses de la nouvelle culture politique
Geuens, Geoffrey ULg

in Principes élémentaires de la propagande arc-en-ciel (ouvrage de V. Decroly et E. Rydberg) (2003)

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See detailNew illumination technique for IR-video guided patch-clamp recording from neurons in slice cultures on biomembrane
Alix, Philippe ULg; Winterer, J; Muller, W

in Journal of Neuroscience Methods (2003), 128

Slice cultures on biomembrane are the method of choice for studying Ca2 -dependent plastic changes occurring over several days to weeks. Using IR-differential interference contrast, good visualization of ... [more ▼]

Slice cultures on biomembrane are the method of choice for studying Ca2 -dependent plastic changes occurring over several days to weeks. Using IR-differential interference contrast, good visualization of neurons in biomembrane slice cultures has been achieved despite a negative optical effect of the biomembrane, but epifluorescence imaging requires removal of a Wollaston prism and the analyzer. Here, we describe a novel illumination method to overcome this problem. Using optic fiber illumination at a shallow angle from the top of the slice culture, with or without additional illumination from the bottom, we obtained good cellular resolution of neurons in biomembrane slice cultures as well as in acute slices with an infrared-video camera. With this technique, we demonstrate visually guided whole-cell patch-clamp recording of Na - and K -currents as well as combination of whole-cell recording with fluorescence imaging of hippocampal and entorhinal cortex neurons in biomembrane slice cultures. Our inexpensive method should prove very useful for studying in vitro effects of long-term manipulations on membrane currents and intracellular Ca2 -signaling. # 2003 Elsevier B.V. All rights reserved. [less ▲]

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See detailEvaluer des compétences en histoire : oui mais comment ?
Jadoulle, Jean-Louis ULg

in Beckers, Jacqueline (Ed.) Les outils d’évaluation des compétences disciplinaires dans l’enseignement secondaire. Actes de l’Université d’été (2003)

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See detailDistinction Between Cultivated And Wild Chicory Gene Pools Using Aflp Markers
Van Cutsem, P.; Du Jardin, Patrick ULg; Boutte, C. et al

in Theoretical & Applied Genetics = Theoretische und Angewandte Genetik (2003), 107(4),

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See detailCaracterization del comportamiento mecanico de aceros para embuticion profunda
GARCIA, C.; CELENTANO, D.; Ponthot, Jean-Philippe ULg

in Proceedings of the joint conference Jornadas SAM, el Congreso Nacional de Metalurgia y Materiales de Chile (2003)

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