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See detailA scheduler for relative delay service differentiation
Jennes, Geoffroy ULg; Leduc, Guy ULg; Tufail, Mudassir

in Annales des Télécommunications = Annals of Telecommunications (2002), 57(1-2, JAN-FEB), 83-104

We propose a new delay-based scheduler called as RD-VC (Relative Delay VirtualClock). Since it performs a delay-based service differentiation among flow aggregates, the quality at microflow level is the ... [more ▼]

We propose a new delay-based scheduler called as RD-VC (Relative Delay VirtualClock). Since it performs a delay-based service differentiation among flow aggregates, the quality at microflow level is the same as that at aggregate level. This is not easily achievable when the service differentiation is bandwidth-based or loss-based. Unlike the EDF (Earliest Deadline First) scheduler [1], our proposed scheduler self-regulates and adapts the delays according to load changes. This characteristic permits its to implement it in an AF-like PHB providing the relative quantification service in a DiffServ network. Finally, we compare our proposed RD-VC scheduler with two important existing propositions: WTP (Waiting Time Priority) [2, 3] and EX-VC (Extended VirtualClock) [4]. Both these propositions are delay-based and have self-regulation property All three schedulers (RD-VC, WTP and EX-VC) maintain the required service differentiation among aggregates and have comparable long term average performance like mean throughput per aggregate and packet loss ratio etc. However, RD-VC and WTP take an edge over EX-VC at short-term performance like jitter. Both RD-VC and WTP have good long term and short-term performance. Our proposed RD-VC, compared to existing WTP, has two additional characteristics, i.e. unlike WTP which is limited to architectures with one queue per QoS class, it has no limitation on implementation scope (with or without separate queues per class) and it has lower complexity. This renders RD-VC an interesting proposition. [less ▲]

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See detailReversal of oxalosis cardiomyopathy after combined liver and kidney transplantation
Detry, Olivier ULg; Honore, Pierre ULg; De Roover, Arnaud ULg et al

in Transplant International (2002), 15(1), 50-52

Few data have been published on the course of oxalosis cardiomyopathy after combined liver and kidney transplantation in hyperoxaluria patients with myocardial involvement. We report the case of a primary ... [more ▼]

Few data have been published on the course of oxalosis cardiomyopathy after combined liver and kidney transplantation in hyperoxaluria patients with myocardial involvement. We report the case of a primary hyperoxaluria type I patient with renal failure who developed end-stage cardiomyopathy. Left venticulography showed severe diffuse hypokinesia and left ventricular ejection fraction was calculated at 12%. Endomyocardial biopsy demonstrated platelike calcium oxalate crystals within the myocardium and the connective tissue, and mild perivascular fibrosis. The patient was first considered for combined liver-heart-kidney transplantation, but as his cardiac function improved slightly with an intensive dialysis program, combined liver and kidney transplantation was performed. Normal cardiac function was demonstrated at 1-year follow-up, and comparative endomyocardial biopsy showed regression of the myocardial oxalate deposits. This case adds stronger clinical, hemodynamic, and histopathological evidence that severe oxalosis cardiomyopathy may be reversed after combined liver and kidney transplantation. [less ▲]

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See detailON THE INFLUENCE OF A NON-LOCAL ELECTRODYNAMICS IN THE IRREVERSIBLE MAGNETIZATION OF NON-MAGNETIC BOROCARBIDES
Silhanek, Alejandro ULg; Civale, L.; Thompson, J.R. et al

in Annett, James F.; Kruchinin, Sergei (Eds.) New Trends in Superconductivity (2002)

We present an overview of the temperature, field and angular dependence of the irreversible magnetization of non-magnetic borocarbides (Y;Lu)Ni2B2C.We show that nonlocal electrodynamics influences pinning ... [more ▼]

We present an overview of the temperature, field and angular dependence of the irreversible magnetization of non-magnetic borocarbides (Y;Lu)Ni2B2C.We show that nonlocal electrodynamics influences pinning via the unusual behavior of the shear modulus in non-hexagonal lattices. On top of that, we observe that the pinning force density Fp exhibits a rich anisotropic behavior that sharply contrasts with its small mass anisotropy. When H⊥c, Fp is much larger and has a quite different H dependence, indicating that other pinning mechanisms are present. [less ▲]

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See detailProcédures et gestion budgétaires au niveau des collectivités locales
Husson, Jean-François ULg

Report (2002)

Budgeting is not only a technical process but also a highly political one because technique and discretionary judgement are intertwined, and different actors have different interests. Budgetary procedures ... [more ▼]

Budgeting is not only a technical process but also a highly political one because technique and discretionary judgement are intertwined, and different actors have different interests. Budgetary procedures can and should help to reduce various types of information imbalance and help local authorities to deliver services more effectively. This study highlights certain sensitive areas in the budgeting process, analyses the solutions tried by the different Council of Europe member states and identifies practices that seem particulary worthwhile. It suggest finally conclusions and guidelines for central governments and for local and regional authorities. [less ▲]

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See detailSkin tensile properties in patients treated for acromegaly.
Braham, Catherine; Betea, Daniela ULg; Pierard, Claudine ULg et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (2002), 204(4), 325-9

BACKGROUND: Somatotropic effects are described in the skin. Indeed, acromegaly is in part clinically recognized by cutaneous coarsening. The actual changes in tensile properties associated with the ... [more ▼]

BACKGROUND: Somatotropic effects are described in the skin. Indeed, acromegaly is in part clinically recognized by cutaneous coarsening. The actual changes in tensile properties associated with the cutaneous manifestations are largely unknown. OBJECTIVES: To study the relationships between the skin tensile properties and the severity of acromegaly as assessed by serum levels of growth hormone (GH) and insulin-like growth factor 1 (IGF-1). PATIENTS AND METHOD: Assessments were made in 13 patients with acromegaly treated by somatostatin agonists combined or not with surgery. A total of 39 age- and sex-matched healthy subjects served as controls. Skin tensile properties were measured on the forearm and nape of the neck using a computerized suction device. RESULTS: Significant differences were yielded between the skin tensile properties in patients and normal subjects. The highest IGF-1 values in the patients' medical records were positively correlated with both skin distensibility and biologic elasticity. The most recent IGF-1 serum levels were negatively correlated with the visco-elastic ratio. No correlations were yielded between any of the biomechanical parameters and GH levels, disease duration and treatment dosages, respectively. CONCLUSION: The skin in acromegaly appears to be functionally more redundant and elastic than normal skin. The biomechanical changes appear quite different from those observed in other diseases with collagen deposition such as diabetes mellitus and scleroderma. [less ▲]

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See detailL'exclusion de la réassurance des règles européennes de conflits de juridictions en matière de contrats d'assurance
Boularbah, Hakim ULg

in Bulletin des Assurances = Tijdschrift voor Verzekeringen (2002)

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See detailAtteintes neuromusculaires aiguës de réanimation (ANMAR) : étude électrophysiologique prospective de 56 cas
BARTSCH, Valérie ULg; TOMASELLA, Marco ULg; Zeevaert, Bernard et al

in Neurophysiologie Clinique = Clinical Neurophysiology (2002)

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See detailÉcriture et système de prescription. L’exemple du “Lecteur du Petit Journal” (Zola, 1865)
Durand, Pascal ULg

in Jurt, J.; Einfalt, M. (Eds.) Le texte et le contexte. Analyses du champ littéraire français (XIXe et XXe siècle) (2002)

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See detailLésion du nerf interosseux postérieur liée à une randonnée prolongée en vélo-tout-terrain (VTT)
Zeevaert, Bernard; CRIELAARD, Jean-Michel ULg; WANG, François-Charles ULg

in Neurophysiologie Clinique = Clinical Neurophysiology (2002)

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See detailValeurs de références de l’analyse en mode multi-MUP du multifidus dorso-lombaire
TOMASELLA, Marco ULg; CRIELAARD, Jean-Michel ULg; WANG, François-Charles ULg

in Neurophysiologie Clinique = Clinical Neurophysiology (2002)

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See detailDistribution et comportement biogéochimique des métaux en trace dans les sédiments estuariens de l'Escaut.
Bouezmarni, Mohamed ULg

Doctoral thesis (2002)

L’objectif de cette étude est la détermination de la distribution et des propriétés des métaux traces dans les sédiments de l’estuaire de l’Escaut, en vue d’améliorer la compréhension de leur comportement ... [more ▼]

L’objectif de cette étude est la détermination de la distribution et des propriétés des métaux traces dans les sédiments de l’estuaire de l’Escaut, en vue d’améliorer la compréhension de leur comportement biogéochimique. Dans ce but, les distributions des éléments majeurs (Si, Al, Fe, Ca, Mg, Na, K, P, matières organiques et pertes au feu) et mineurs (Cd, Pb, Cu, Zn, Cr, Ni, Co, Mn et Li) ont été examinées dans 59 échantillons de sédiments de surface. L’analyse factorielle des résultats de la composition des dépôts montre que le processus de piégeage dans la zone de turbidité maximale constitue le facteur le plus important qui explique les teneurs des métaux traces dans les sédiments. De plus, la distribution de ces éléments a été étudiée dans différentes fractions granulométriques démontrant l’accumulation des métaux toxiques dans les fractions les plus fines. Elle permis de discuter de manière critique les méthodes de normalisation les plus utilisées dans la littérature et d’adopter la normalisation par le Li comme la méthode la plus adéquate dans le cas de l’Escaut, l’Al reste un bon élément de normalisation sauf pour les sables. La normalisation des concentrations métalliques des sédiments par le Li, montre une accumulation importantes du Cd, du Zn, du Cu, du Pb et du Mn limitée à la zone amont et un comportement conservatif pour le Cr, le Ni et le Co. Une étude de spéciation géochimique des solides a été réalisée par une nouvelle approche basée sur la titration acide des sédiments mis en suspension. Cette méthode permet, contrairement à la méthode de digestion sélective, de préciser la spéciation, la mobilité et la réactivité des métaux traces dans les sédiments. Les fractions les plus réactives des métaux étudiés sont notées dans le cas du Cd (80%), du Pb (70%), du Cu (70%), du Zn (80%) et du Mn (80%), notamment dans les vases anaérobiques de la zone amont. Le piégeage de ces métaux d’origine anthropogénique s’explique par la précipitation du Cd et du Zn sous forme de sulfures, la précipitation du Mn avec les carbonates et le recyclage du Pb avec les oxyhydroxydes de Fer à l’interface eau/sédiment. [less ▲]

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See detailLes acteurs et les enjeux au coeur de l'évaluation
Vandoorne, Chantal ULg

in Education santé (2002), 173(173), 9-11

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See detailWilliam S. Burroughs: Du cut-up au simulacre
Claisse, Frédéric ULg

in Réseaux : Revue Interdisciplinaire de Philosophie Morale et Politique (2002), (94-95-96), 151-174

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