References of "2000"
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See detailAdaptive lambda -tracking for nonlinear systems with higher relative degree
Bullinger, Eric ULg; Allgöwer, F.

in Proc. 39th IEEE Conference on Decision and Control (2000)

Previous results for adaptive lambda -tracker have focused on nonlinear systems with relative degree one or on linear systems with higher relative degree. We extend the adaptive lambda -tracker to lambda ... [more ▼]

Previous results for adaptive lambda -tracker have focused on nonlinear systems with relative degree one or on linear systems with higher relative degree. We extend the adaptive lambda -tracker to lambda -stabilize nonlinear system with higher relative degree. Only little structural information about the system to be controlled is needed. lambda -stability and convergence of the adaptation is proven for tracking a large class of reference trajectories. The design of the controller is very simple and intuitive, only few parameters have to be tuned [less ▲]

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See detailLa garantie des droits fondamentaux et la convention européenne des droits de l'homme
Carlier, Jean-Yves ULg

in Revue Québecoise de Droit International (2000), 13(1), 37-62

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See detailDoppler echocardiographic measurement of cardiac output in the calf: a preliminary study
Amory, Hélène ULg; Sandersen, Charlotte ULg; Brihoum, M et al

in Proceedings of the World Assoc. Buiatrics Congress (2000)

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See detailEconomical aspects of agriculture in Wallonia
Burny, Philippe ULg

Speech (2000)

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See detailEconomical aspects of agriculture in Wallonia
Burny, Philippe ULg

Speech (2000)

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See detailOsteoporose bij de bejaarde
Reginster, Jean-Yves ULg; Taquet, AN; Fraikin, G

in Medi-Sfeer (2000), 103

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See detailPolymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials
Alexandre, Michaël ULg; Dubois, Philippe ULg

in Materials Science & Engineering. R: Reports (2000), R28(1-2), 1-63

A review with 115 refs. This review aims at reporting on very recent developments in syntheses, properties and (future) applications of polymer-layered silicate nanocomposites. This new type of materials ... [more ▼]

A review with 115 refs. This review aims at reporting on very recent developments in syntheses, properties and (future) applications of polymer-layered silicate nanocomposites. This new type of materials, based on smectite clays usually rendered hydrophobic through ionic exchange of the sodium interlayer cation with an onium cation, may be prepd. via various synthetic routes comprising exfoliation adsorption, in situ intercalative polymn. and melt intercalation. The whole range of polymer matrixes is covered, i.e., thermoplastics, thermosets and elastomers. Two types of structure may be obtained, namely intercalated nanocomposites where the polymer chains are sandwiched in between silicate layers and exfoliated nanocomposites where the sepd., individual silicate layers are more or less uniformly dispersed in the polymer matrix. This new family of materials exhibits enhanced properties at very low filler level, usually inferior to 5 wt.%, such as increased Young's modulus and storage modulus, increase in thermal stability and gas barrier properties and good flame retardancy. [on SciFinder (R)] [less ▲]

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See detailMise au point relative à la croissance folliculaire chez la vache.1. Aspects morphologiques et cinétiques
Hanzen, Christian ULg; Lourtie, O.; Derkenne, F. et al

in Annales de Médecine Vétérinaire (2000), 144

La mise en place du potentiel folliculaire se fait bien avant la naissance chez les mammifères. Le nombre maximal de cellules gamétiques contenues dans l'ovaire est atteint après une première phase de ... [more ▼]

La mise en place du potentiel folliculaire se fait bien avant la naissance chez les mammifères. Le nombre maximal de cellules gamétiques contenues dans l'ovaire est atteint après une première phase de multiplication aux environs du centième jour de gestation chez la vache et décroît progressivement ensuite jusqu'à la naissance. A cette première phase succède une phase de croissance et une phase de maturation, cette dernière concernant surtout l'ovocyte. Cette évolution ne concerne qu'un nombre réduit de follicules, la plupart d'entre eux subissant l'atrésie. La croissance folliculaire présente deux caractéristiques. Elle se manifeste sous la forme de croissances et de régressions successives de plusieurs follicules appelées vagues. Chacune d'entre elles consiste en l'émergence, tous les 7 à 9 jours environ, de plusieurs follicules de diamètre égal ou supérieur à 5 mm parmi lesquels apparaîtra le follicule dominant. Ces vagues ont été décrites au cours du cycle, pendant la puberté, le postpartum et la gestation. Par ailleurs, il est bien connu que parmi les follicules recrutés, c'est à dire dont la croissance s'est poursuivie au-delà d'une taille à laquelle ils subissent habituellement l'atrésie, un nombre limité, caractéristique de l'espèce, va être sélectionné pour arriver éventuellement au stade ovulatoire. Ceux-ci vont à ce moment exercer une dominance tout à la fois fonctionnelle et morphologique sur les autres follicules. [less ▲]

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See detailAu commencement était le texte - Des rapports entre contraintes phrastiques et textuelles
Defays, Jean-Marc ULg

in Actes du XXIIème Congrès de linguistique et philologie romanes (2000)

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See detailIschaemic Colitis Following Aortoiliac Surgery
VAN DAMME, Hendrik ULg; CREEMERS, Etienne ULg; Limet, Raymond ULg

in Acta Chirurgica Belgica (2000), 100(1), 21-7

Ischaemic colitis following aortoiliac surgery is a feared complication. Its frequency varies from 7% after repair of ruptured abdominal aortic aneurysm (AAA) to 0.6% after bypass for aortoiliac occlusive ... [more ▼]

Ischaemic colitis following aortoiliac surgery is a feared complication. Its frequency varies from 7% after repair of ruptured abdominal aortic aneurysm (AAA) to 0.6% after bypass for aortoiliac occlusive disease (AOD). In order to analyse predisposing factors and outcome of ischaemic colitis, the authors reviewed their clinical experience from 1988 to 1998. It concerns 28 cases (16 ruptured AAA, 7 elective AAA, 5 OAD) of clinically evident colonic ischaemia. This means an incidence of 7% after repair of ruptured AAA, 0.6% after elective AAA repair, and 0.8% after bypass for AOD. Transmural necrosis (grade 3) was observed in 21 patients, grade 2 ischaemia in 5 patients, and grade 1 ischaemia in 2 patients. Fifteen patients with grade 3 ischaemia underwent colectomy (Hartmann's procedure) with a mortality rate of 66%. All non operated grade 3 patients died. Overall, 16 of the 28 patients died at hospital (57% mortality rate). None of the patients with mild (grade 2 or 1) colonic ischaemia died. Profound hypovolaemic shock and inflammatory AAA were the only significant predisposing factors leading to colonic ischaemia. Associated colon revascularization could not avoid the evolution to colon necrosis in four patients. Reimplantation of a patent inferior mesenteric artery or an internal iliac artery was performed in only 4.8% of all aortoiliac reconstructions, and did not influence the development of ischaemic colitis. The authors conclude that a more liberal use of postoperative sigmoidoscopy could allow detecting colonic ischaemia at an earlier stage and reduce ensuing mortality. A reinforced effort to restore or preserve colonic vascularization could lower the incidence of colonic ischaemia following aortoiliac surgery. [less ▲]

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See detailEigenschappen van glucosamine
Reginster, Jean-Yves ULg; Halkin, V

in Medi-Sfeer (2000), 116

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See detailWanze/Huccorgne : la grotte du Docteur
Miller, Rebecca ULg; Otte, Marcel ULg

in Chronique de l'Archéologie Wallonne (2000), 8

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See detailExtensions des techniques de reparation valvulaire mitrale: chirurgie de l'endocardite et des tumeurs valvulaires
Radermecker, M. A.; Gach, Olivier ULg; Henrottaux, G. et al

in Revue Médicale de Liège (2000), 55(10), 950-3

Mitral valve repair has demonstrated its superiority over valve replacement. Mitral valve repair constitutes the optimal therapeutic option in case of degenerative dystrophic, rheumatic, congenital or ... [more ▼]

Mitral valve repair has demonstrated its superiority over valve replacement. Mitral valve repair constitutes the optimal therapeutic option in case of degenerative dystrophic, rheumatic, congenital or ischemic mitral valve disease. These surgical techniques can also be successfully and advantageously applied in case of bacterial endocarditis or tumoral valvular disease. We report a case of staphylococcal endocarditis and another case of posterior leaflet fibroelastoma to show the place of conservative mitral surgery in these unusual indications. [less ▲]

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See detailNotions de base de physiologie de l'effort
Art, Tatiana ULg; Amory, Hélène ULg; Lekeux, Pierre ULg

in Pratique Vétérinaire Equine (2000), 32

In general, muscular exertion occurs when there is oxygenation of the energy substrates carbon hydrate and fatty acids. At the beginning of exercise and/or when there is extra exertion, anaerobic ... [more ▼]

In general, muscular exertion occurs when there is oxygenation of the energy substrates carbon hydrate and fatty acids. At the beginning of exercise and/or when there is extra exertion, anaerobic metabolism also participates in the synthesis of ATP, which is essential for muscular contraction. The organism's oxygen consumption is proportional to the intensity of the effort, except during anaerobic metabolism. The maximum quantity of substrates that can oxygenate the muscles per unit time depends on the enzymatic material available. When the total aerobic capacity is used, the oxygen consumption is said to be maximal. The oxygen consumed at cellular level is taken from the ambient air at the areas of pulmonary exchange and transported throughout the body by the cardiovascular system. It is therefore essential that there is sufficient functional ability to adapt to cardiovascular and respiratory changes in order to ensure adequate O2 and nutrient transport and evacuation of CO2 and heat. The two systems adapt with exercise and training [less ▲]

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See detailHeart Graft Monitoring by the Ventricular Evoked Response
Mahaux, V.; Demoulin, J.C.; BIESSAUX, Yves ULg et al

in Pacing & Clinical Electrophysiology (2000), 23(11, Pt 2), 2003-5

Monitoring of the negative slew rate of the evoked T wave has been proposed as a noninvasive diagnostic tool to follow heart transplant recipients. The clinical contribution of this measurement on ... [more ▼]

Monitoring of the negative slew rate of the evoked T wave has been proposed as a noninvasive diagnostic tool to follow heart transplant recipients. The clinical contribution of this measurement on telemetrically recorded, paced unipolar ventricular electrograms was evaluated in the detection of grade 3 acute allograft rejection. Thirteen patients undergoing heart transplantation received a DDD pacemaker connected to two epimyocardial leads. Electrograms were recorded and digitized after each endomyocardial biopsy (EMB). The maximum slew rate of the descending slope of the repolarization phase (RSP) was extracted and normalized. A 20% downward shift of RSP from the reference value was considered abnormal. Results of signal processing were blinded during the first 6 months. Eleven patients completed the 6 months blinded period and two patients died. A total of 101 EMB were graded according to the International Society for Heart and Lung Transplantation classification. Grade 3 was assigned to 9 EMB. A significant difference was found between RSP values measured during grade 3 rejection episodes and other RSP values (P < 0.001). A diagnostic model consisting of a single threshold test confirmed the ability of RSP to predict significant signs of rejection on EMB (P < 0.0001). The sensitivity of RSP in detecting grade 3 rejections was 100%, specificity was 81%, negative predictive value 100%, and positive predictive value 35%. The use of RSP as a noninvasive monitoring tool to pose the indication for a biopsy would avoid 73% of EMB. Monitoring of transplanted hearts based on the analysis of the ventricular evoked response is promising and may markedly reduce the number of EMB. [less ▲]

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See detailIn vitro modulation of radiosenitizing effect of FMdC. The importance of simultaneous alteration of the novo and salvage pathways to deoxyribonucleosides.
COUCKE, Philippe ULg; Cottin, E; Ciernick, I-F et al

in International Journal of Radiation, Oncology, Biology, Physics (2000), 46(3),

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See detailAssessment of crop based farming systems with a focus on pigeonpea in one selected district in arid and semi-arid lands in the Kenyan coast. Ed. by E. Feoli, D. Pottier, Z. Woldu. Sustainable development of dryland areas of East Africa
Mwang'Ombe, A.W; Olubayo, F; Baudoin, Jean-Pierre ULg et al

in Proceedings of the International Workshop, Addis Ababa, November 9th-12th 1998. European Commission (2000)

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