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See detailL'image du mois. Acne gymnasium: une acne fulminante dopee.
Pierard, Gérald ULg

in Revue medicale de Liege (1998), 53(8), 441-3

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See detailEstimation de la population de buffles de forêt, Syncerus caffer nanus, dans le Parc National d’Odzala, République du Congo
Chamberlan, Christelle; Marechal, Corinne ULg; MAUROIS, Céline ULg

in Cahiers d'Ethologie (1998), 18(2), 295-298

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See detailOn the appropriateness of marginal models for repeated measurements in clinical trials
Lindsey, James ULg; Lambert, Philippe ULg

in Statistics in Medicine (1998), 17

Although models developed directly to describe marginal distributions have become widespread in the analysis of repeated measurements, some of their disadvantages are not well enough known. These include ... [more ▼]

Although models developed directly to describe marginal distributions have become widespread in the analysis of repeated measurements, some of their disadvantages are not well enough known. These include producing profile curves that correspond to no possible individual, possibly showing that a treatment is superior on average when it is poorer for each individual subject, implicitly generating complex and implausible physiological explanations, including underdispersion in subgroups, and sometimes corresponding to no possible probabilistic data generating mechanism. We conclude that such marginal models may sometimes be appropriate for descriptive observational studies, such as sample surveys in epidemiology, but should only be used with great care in causal experimental settings, such as clinical trials. [less ▲]

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See detailComment j'explore ... un sujet avec une concentration basse de cholesterol HDL.
Scheen, André ULg

in Revue Médicale de Liège (1998), 53(11), 711-4

A decrease in plasma HDL cholesterol concentration is considered as a major cardiovascular risk factor and is a prevalent lipid abnormality among patients with coronary heart disease. This condition is ... [more ▼]

A decrease in plasma HDL cholesterol concentration is considered as a major cardiovascular risk factor and is a prevalent lipid abnormality among patients with coronary heart disease. This condition is most often observed in the presence of hypertriglyceridaemia, generally linked to the insulin resistance syndrome, but may also be associated to elevated LDL cholesterol level or even be present alone (hypoalphalipoproteinaemia). The decision to treat a patient with low HDL level depends on the individual overall cardiovascular risk which should be evaluated as carefully as possible. The investigation should look for causes which may favour this metabolic condition, such as bad life habits or possible pharmacological interferences. [less ▲]

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See detail1-anilino-8-naphtalene sulfonate probes a gastric HK-ATPase potassium site whose access requires ionophores.
Festy, F.; Lins, Laurence ULg; Gallet, X. et al

in Journal of Membrane Biology (1998), 165(2), 153-60

1-anilino-8-naphtalenesulfonate (ANS) is a hydrophobic dipole previously used to demonstrate that the proton for potassium exchange by the gastric HK-ATPase is electroneutral. In this paper, we ... [more ▼]

1-anilino-8-naphtalenesulfonate (ANS) is a hydrophobic dipole previously used to demonstrate that the proton for potassium exchange by the gastric HK-ATPase is electroneutral. In this paper, we demonstrate that ANS binds to gastric membranes and probes conformational changes of the HK-ATPase independently of any active H for K exchange. Conformational changes require the presence of potassium-valinomycin and are not triggered by sodium. Potassium effect is enhanced by ATP, in the presence and in the absence of magnesium and, by ADP, in the presence of magnesium. Labeling of the pig HK-ATPase K518 by fluorescein-5-isothiocyanate inhibits the enzyme activity and knocks out the ATP effect on ANS fluorescence. Scherring 28080 and the monoclonal antibody 95-111, two competitive inhibitors of K-activated ATPase dephosphorylation, do not modify K-effect on ANS fluorescence but inhibit ATP effects. This supports that ANS does not probe K-site between the H1-H2 loop. Treatment of gastric membranes with trypsin does not inhibit the ANS response to potassium but does inhibit the response to ATP. This suggests that the ATP site inducing the ANS response is cytoplasmic and the potassium site is intramembranous. Titration reveals that one mole of ANS interacts with one mole of ATPase. We suggest that ANS probes a hydrophobic potassium site of gastric ATPase and that addition of ATP and ADP-Mg embed that site. [less ▲]

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See detailLe genre Psilophyton dans le Dévonien inférieur de Belgique: P. cf. crenulatum Doran et P. forbesii Andrews, Kasper & Mencher.
Gerrienne, Philippe ULg

in Annales de la Société Géologique de Belgique (1998), 120

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See detailThe phosphoprotein pp135 is an essential constituent of the fibrillar components of nucleoli and of coiled bodies.
Vandelaer, M.; Thiry, Marc ULg

in Histochemistry & Cell Biology (1998), 110(2), 169-77

We examined the distribution of the silver-stainable phosphoprotein, pp135, within Ehrlich tumor and HEp-2 cells by a postembedding Lowicryl immunogold labeling procedure. Identical labeling patterns were ... [more ▼]

We examined the distribution of the silver-stainable phosphoprotein, pp135, within Ehrlich tumor and HEp-2 cells by a postembedding Lowicryl immunogold labeling procedure. Identical labeling patterns were obtained in both cell types. During interphase, gold particles were found not only over the dense fibrillar component but were also evident over the fibrillar centers of nucleoli. By contrast, the granular component did not display any significant label. When rRNA synthesis was inhibited by actinomycin D, the same labeling was observed in segregated nucleoli; both fibrillar components were labeled. Aside from the nucleolar labeling, label was also consistently present in coiled bodies. During metaphase, label was visualized in silver-stainable material of the nucleolus organizing regions. It thus appears that, unlike the two major silver-stained proteins, nucleolin/C23 and B23, pp135 remains located in all major silver-stainable structures during the whole cell cycle. This finding strongly suggests that pp135 could be the component responsible for in situ silver staining. On the other hand, the maintenance of pp135 in the fibrillar centers throughout the cell cycle, like RNA polymerase I, upstream binding factor, and DNA topoisomerase I, suggests that pp135 could be a component involved in transcription of the rRNA genes. [less ▲]

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See detailthe once-daily concept of aminoglycoside administration adapted in neonatalogy
Battisti, Oreste ULg

in Pediatric Research (1998), 2

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See detailNote sur un sceau-cylindre et une bulla provenant de Horum Höyük
Tunca, Önhan ULg

in Anatolia Antiqua 7 (1998)

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See detailIntérêt de la stimulation du tibial antérieur et du long péronier latéral dans la marche de l'hémiplégique
Vanderthommen, Marc ULg; Lucas, C.; Laurent, J.M. et al

in Kiné 2000 (1998), 9

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See detailEnantioseparation of Acidic Drugs by Capillary Electrophoresis Using Dual Systems with Mixtures of Charged and Neutral Cyclodextrins
Fillet, Marianne ULg; Fotsing, Lucas ULg; Schomburg, G. et al

in Biomedical Chromatography : BMC (1998), 12(3, May-Jun), 131-2

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See detailVisual evoked potentials during long periods of pattern-reversal stimulation in migraine.
Afra, J; Cecchini, A P; DE PASQUA, Victor ULg et al

in Brain : A Journal of Neurology (1998), 121(2), 233-41

We have previously shown that during repetitive pattern-reversal stimulation, lasting 2 min, the amplitude of the visual evoked potential (PR-VEP) increases in migraineurs when tested interictally whereas ... [more ▼]

We have previously shown that during repetitive pattern-reversal stimulation, lasting 2 min, the amplitude of the visual evoked potential (PR-VEP) increases in migraineurs when tested interictally whereas it decreases in healthy control subjects. According to Sappey-Marinier et al. (J Cereb Blood Flow Metab 1992; 12: 584-92) habituation of the PR-VEP in normal subjects is maxima after 12 min, at a time when there is a decrease of stimulation-enhanced lactate levels in the occipital cortex. We have therefore compared PR-VEP during long periods of repetitive stimulation in healthy control subjects (n = 25) and in patients suffering from migraine without (n = 25) and with aura (n = 15) between attacks. During uninterrupted stimulation at 3.1 Hz VEPs were sequentially averaged in blocks of 100 responses for a total duration of 15 min and analysed in terms of latencies and peak-to-peak amplitudes of N1-P1 and P1-N2 peaks. Amplitude changes from the baseline were calculated for each block, by comparison with the first block, and analysed statistically using Zerbe's method. The N1-P1 and P1-N2 amplitudes in the first block tended to be lower in migraineurs than in healthy control subjects. During the 15 min of stimulation, amplitudes of both components progressively decreased in control subjects, but remained stable in both groups of patients. The difference between patients and control subjects proved to be significant (P < 0.05). The neurophysiological data were not correlated with clinical features such as attack frequency or duration of illness. These results are yet another demonstration in migraine of an interictal habituation deficit in cortical information processing, which might favour lactate accumulation in sensory cortices during sustained activation. [less ▲]

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See detailNouvelles données lithostratigraphiques sur le Frasnien de l'Anticlinorium de Philippeville
Dumoulin, V.; Marion, Jean-Marc ULg; Boulvain, Frédéric ULg et al

in Annales de la Société Géologique du Nord (1998), II 6

The revision of the Sautour-Surice geological map revealed some important lateral facies variations in the Frasnian of the Philippeville Massif. Two kinds of lithological successions have been observed ... [more ▼]

The revision of the Sautour-Surice geological map revealed some important lateral facies variations in the Frasnian of the Philippeville Massif. Two kinds of lithological successions have been observed, corresponding to the formations newly defined in the Philippeville Massif (proximal facies) and at the southern border of the Dinant Synclinorium (distal facies). The geographic repartition of the two facies is schematically presented. A new section (distal facies) is described from the Hermeton valley (SE of the Philippeville Massif). As a conclusion, the origin of the coexistence of the two facies types in the Philippeville Massif is discussed. [less ▲]

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See detailGrazing by large river zooplankton: a key to summer potamoplankton decline? The case of the Meuse and Moselle rivers in 1994 and 1995
Gosselain, Véronique; Descy, Jean-Pierre; Viroux, Laurent et al

in Hydrobiologia (1998)

To explain summer declines in phytoplankton biomass in large rivers, we compared the effect of zooplankton grazing on the planktonic algae of two large European rivers, the Meuse and the Moselle. In situ ... [more ▼]

To explain summer declines in phytoplankton biomass in large rivers, we compared the effect of zooplankton grazing on the planktonic algae of two large European rivers, the Meuse and the Moselle. In situ grazing was measured during two years (1994 and 1995), using the Haney method. Total zooplankton community filtration rates recorded in the river Meuse ranged between 1 and 32% of the water volume filtered per day. A drastic algal decline was observed early July both years and may be explained by high densities of a rotiferdominated zooplankton community (500–700 ind. l􀀀1) with more than 75%of Brachionus calyciflorus. During the summer period in 1994, when grazingwas over 20%, edible algal biomasswas controlled by a diversified rotifer community (up to 2500 ind.l􀀀1), while a nonedible algal assemblage developed. In contrast, phytoplankton biomass remained comparatively lowin the Moselle throughout the lowflowperiod, as did zooplankton numbers duringmost of this time (fewer than 200 ind. l􀀀1 during the summer period). The proportion of crustaceans in this zooplanktonwas rather higher than in the Meuse, and they dominated at times, in biomass as well as in numbers. Nevertheless, measured in situ grazing rates (1–15%) could not explain the low summer algal biomass, even if low filtration rates may at times represent a significant carbon loss for phytoplankton, when and where net algal production was low. As a conclusion, the role of phytoplankton – zooplankton interactions in controlling algal biomass in large rivers is discussed. [less ▲]

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See detailNew estimate of the carbon sink strength of EU forests integrating flux measurements, field surveys, and space observations: 0.17-0.35 Gt(C)
Martin, Philippe; Valentini, R.; Jacques, M. et al

in AMBIO : A Journal of the Human Environment (1998), 27(7), 582-584

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See detailComment j'explore ... la nephropathie diabetique. Premiere partie: micro- et macro-albuminurie.
Weekers, Laurent ULg; Scheen, André ULg; Lefebvre, Pierre ULg

in Revue Médicale de Liège (1998), 53(8), 494-8

Diabetic nephropathy (DN) appears in about 30% of patients with type 1 diabetes (D1) and 15 to 60% of patients with type 2 diabetes (D2). It is preceded by microalbuminuria. Microalbuminuria is defined as ... [more ▼]

Diabetic nephropathy (DN) appears in about 30% of patients with type 1 diabetes (D1) and 15 to 60% of patients with type 2 diabetes (D2). It is preceded by microalbuminuria. Microalbuminuria is defined as an albumin excretion rate between 30 and 300 mg/24 h (on a 24-hour urine collection) or between 20 and 200 micrograms/min (on an overnight collection) in at least two out of three consecutive collections made within a 6-month period. Alternative screening techniques use either dipstick (Micral-Test II) or the albumin to creatinine ratio on an early morning urine sample (30-300 mg/g creatinine). Once persistent microalbuminuria is confirmed, 80% of type 1 diabetic patients and 20 to 50% of type 2 diabetic patients will progress to DN. In D2, microalbuminuria also represents a powerful predictor of early mortality from cardiovascular disease. Macroalbuminuria (AER > 300 mg/24 h, corresponding to a total protein excretion > 500 mg/24 h) will eventually lead to a end-stage renal insufficiency within 10 to 20 years. In D2, numerous patients will die from cardiovascular disease before reaching end-stage renal failure. Angiotensin-converting enzyme inhibitors can slow down the evolution toward DN when prescribed when microalbuminuria appears. Screening for microalbuminuria should therefore be a part of the annual clinical assessment in every diabetic patient. [less ▲]

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See detailDe quelques questions posées à l'occasion d'une demande de facilités de paiement, obs. sous J.P. Soignies, 29 mai 1997
Biquet, Christine ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1998)

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See detailSpontaneous longitudinally orientated axonal regeneration is associated with the Schwann cell framework within the lesion site following spinal cord compression injury of the rat.
Brook, G. A.; Plate, D.; Franzen, Rachelle ULg et al

in Journal of Neuroscience Research (1998), 53(1), 51-65

Spontaneous cellular reorganisation at the lesion site has been investigated following massive spinal cord compression injury in adult rats. By 2 days post operation (p.o.), haemorrhagic necrosis ... [more ▼]

Spontaneous cellular reorganisation at the lesion site has been investigated following massive spinal cord compression injury in adult rats. By 2 days post operation (p.o.), haemorrhagic necrosis, widespread axonal degeneration, and infiltration by polymorphnuclear granulocytes and OX42-positive macrophages were observed in the lesion site. By 7 days p.o., low affinity nerve growth factor receptor-positive Schwann cells, from activated spinal roots, were identified as they migrated far into the lesion. Between 7 and 14 days p.o., the overlapping processes of Schwann cells within the macrophage-filled lesion formed a glial framework which was associated with extensive longitudinally orientated ingrowth by many neurofilament-positive axons. Relatively few of these axons were calcitonin gene-related peptide (CGRP)-, substance P (SP)-, or serotonin (5HT)-positive; however, many were glycinergic or gamma aminobutyric acid (GABA)ergic. At 21 and 28 days p.o. (the longest survival times studied), a reduced but still substantial amount of orientated Schwann cells and axons could be detected at distances of up to 5 mm within the lesion. Glial fibrillary acidic protein (GFAP) immunoreactivity demonstrated the slow formation of astrocytic scarring which only became apparent at the lesion interface between 21 and 28 days p.o. The current data suggest the possibility of developing future therapeutic strategies designed to maintain or even enhance these spontaneous and orientated regenerative events. [less ▲]

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See detailRésistance aux antibiotiques de souches d'Escherichia coli bovines et aviaires isolées en Algérie
Mellata, M.; Jacquemin, E.; Bakour, R. et al

in Annales de Médecine Vétérinaire (1998), 142

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See detailEtude du statut virologique d'une vache séropositive envers l'herpèsvirus bovin de type 1 et séronégative envers la glycoprotéine gE
Schynts, Frédéric; Lemaire, Mylène; Bertrand, O. et al

in Annales de Médecine Vétérinaire (1998), 142

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See detailCompte rendu de Le geste et les gestes au Moyen Age. Aix-en-Provence, 1998
George, Philippe ULg

in Moyen Age (Le) (1998)

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See detailRadial tree-growth modelling with fuzzy regression.
Boreux, Jean-Jacques ULg; Gadbin-Henry, C.; Guiot, Joël et al

in Canadian Journal of Forest Research = Journal Canadien de la Recherche Forestière (1998), 28(8), 1249-1260

A so-called fuzzy linear regression is used in dendroecology to model empirically tree growth as a function of a bioclimatic index representing the water stress, i.e., the ratio of actual ... [more ▼]

A so-called fuzzy linear regression is used in dendroecology to model empirically tree growth as a function of a bioclimatic index representing the water stress, i.e., the ratio of actual evapotranspiration to potential evapotranspiration. The response function predicts tree growth as (fuzzy) intervals, narrow in the domain where the bioclimatic index is most limiting and becoming progressively larger elsewhere. The method is tested with a population of Pinus pineaL. from the Provence region in France. It is shown that fuzzy linear regression gives results comparable with those obtained using a linear response function. The interval of credibility given by the fuzzy regression suggests that more precise expected growth is obtained for high water stress, which is typical of Mediterranean climate. Fuzzy linear regression can be also a method to test different hypotheses on several potential predictors when any further experimental approach is quite impossible as it is for trees in their natural environment. To sum up, fuzzy regression could be a first step before the construction of a kind of growth simulator adapted to different environments of a given species. In environmental sciences, the fuzzy response function thus appears to be an approach between the mechanistic and the statistical descriptive approaches. [less ▲]

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See detailhigh frequency oscillatory ventilation in RDS
Battisti, Oreste ULg

in Pediatric Research (1998), 2

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See detailnote sous J.P. Etalle, 3 février 1997
Moreau, Pierre ULg

in Revue de Droit Judiciaire et de la Preuve = Tijdschrift voor Procesrecht en Bewijsrecht (1998), (5), 312-313

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See detailContact between deformable solids, the fully coupled approach
Habraken, Anne ULg; Cescotto, Serge ULg

in Mathematical & Computer Modelling (1998), 28(4-8), 153-169

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See detailPeatlands of Wallony (S-Belgium)
Frankard, Philippe; Ghiette, Pascal; Hindryckx, Marie-Noëlle ULg et al

in Suoseura - Finnish Peatland Society (1998), 49(2), 33-47

Various types of peatlands are present in Wallony: raised bogs, oligotrophic and rich fens, wet heaths, marshy woodlands. Many areas have been degraded by past and recent human activities. Much attention ... [more ▼]

Various types of peatlands are present in Wallony: raised bogs, oligotrophic and rich fens, wet heaths, marshy woodlands. Many areas have been degraded by past and recent human activities. Much attention is now devoted to their protection, scientific study and ecological management. Besides their exceptional biological and ecological interest, they are among the last natural spaces in a very urbanised country like Belgium. [less ▲]

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See detailTourisme et plans d'aménagement
Delnoy, Michel ULg

in Aménagement - Environnement (1998), n° spécial

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See detailRecherches en Pédagogie des Activités physiques et sportives centrées sur l'enseignement primaire et secondaire. Thèmes, principes méthodologiques et implications didactiques
Piéron, Maurice ULg; Cloes, Marc ULg

in Revue de l'Education Physique (1998), 38(3), 109-125

Tout service universitaire compte parmi ses missions celle de développer la connaissance du domaine au moyen d'une recherche structurée. On sait qu'enseignement et recherche se nourrissent mutuellement ... [more ▼]

Tout service universitaire compte parmi ses missions celle de développer la connaissance du domaine au moyen d'une recherche structurée. On sait qu'enseignement et recherche se nourrissent mutuellement. La pédagogie des activités physiques et sportives ne fait évidemment pas exception, même si elle ne possède aucun caractère prioritaire dans les organismes qui financent la recherche. ... [less ▲]

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See detailCoût dans le secteur de la distribution d’électricité : économies d’échelle, économies de densité et formes institutionnelles
Evrard, Olivier; Lejeune, Bernard ULg

in Economie et Prévision (1998), 135

Cet article a pour objet d'évaluer empiriquement la pertinence économique (en termes d'efficience-coût) de la politique de délégation de la distribution d'électricité des communes vers des organismes ou ... [more ▼]

Cet article a pour objet d'évaluer empiriquement la pertinence économique (en termes d'efficience-coût) de la politique de délégation de la distribution d'électricité des communes vers des organismes ou sociétés extra-communales. Pour ce faire, les possibilités d'économies d'échelle et de densité au sein du secteur ainsi que les coûts d'exploitation relatifs des diverses formes institutionnelles existantes sont évalués sur base de l'estimation d'une fonction de coût hédonique à court terme. [less ▲]

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See detailObjets géographiques à limites indéterminées. Modélisation et intégration dans un modèle conceptuel de données
Pantazis, Dimos; Donnay, Jean-Paul ULg

in Revue Internationale de Géomatique (1998), 7(2), 159-186

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See detailImmeubles de très grande hauteur: un défi pour l'ingénieur
Franssen, Jean-Marc ULg

in Infrastructuur in het Leefmilieu (1998), 2

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See detailLe Projet Catsius Clay
Charlier, Robert ULg; Collin, Frédéric ULg

in Bulletin du Groupement Belge de Mécanique des Roches (1998)

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See detailFormation of the 67-kDa laminin receptor by acylation of the precursor.
Buto, S.; Tagliabue, E.; Ardini, E. et al

in Journal of Cellular Biochemistry (1998), 69(3), 244-51

Even though the involvement of the 67-kDa laminin receptor (67LR) in tumor invasiveness has been clearly demonstrated, its molecular structure remains an open problem, since only a full-length gene ... [more ▼]

Even though the involvement of the 67-kDa laminin receptor (67LR) in tumor invasiveness has been clearly demonstrated, its molecular structure remains an open problem, since only a full-length gene encoding a 37-kDa precursor protein (37LRP) has been isolated so far. A pool of recently obtained monoclonal antibodies directed against the recombinant 37LRP molecule was used to investigate the processing that leads to the formation of the 67-kDa molecule. In soluble extracts of A431 human carcinoma cells, these reagents recognize the precursor molecule as well as the mature 67LR and a 120-kDa molecule. The recovery of these proteins was found to be strikingly dependent upon the cell solubilization conditions: the 67LR is soluble in NP-40-lysis buffer whereas the 37LRP is NP-40-insoluble. Inhibition of 67LR formation by cerulenin indicates that acylation is involved in the processing of the receptor. It is likely a palmitoylation process, as indicated by sensitivity of NP-40-soluble extracts to hydroxylamine treatment. Immunoblotting assays performed with a polyclonal serum directed against galectin3 showed that both the 67- and the 120-kDa proteins carry galectin3 epitopes whereas the 37LRP does not. These data suggest that the 67LR is a heterodimer stabilized by strong intramolecular hydrophobic interactions, carried by fatty acids bound to the 37LRP and to a galectin3 cross-reacting molecule. [less ▲]

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See detailProjet Solidarité : Accompagnement d'équipes éducatives dans la réalisation de leur projet d'établissement
Lenoir, A.; Mouvet, Bernadette ULg; Munten, J. et al

in Point sur la Recherche en Education (Le) (1998), 8

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See detailL'hypnose et son application en chirurgie.
Faymonville, Marie ULg; Defechereux, Thierry ULg; Joris, Jean ULg et al

in Revue Médicale de Liège (1998), 53(7), 414-8

Since 1992, we have used hypnosis routinely in more than 1400 patients undergoing surgery. We found that hypnosis used in patients as an adjunct to conscious sedation and local anesthesia was associated ... [more ▼]

Since 1992, we have used hypnosis routinely in more than 1400 patients undergoing surgery. We found that hypnosis used in patients as an adjunct to conscious sedation and local anesthesia was associated with improved intraoperative patient comfort, and with reduced anxiety, pain, intraoperative requirements for anxiolytic and analgesic drugs, optimal surgical conditions and a faster recovery of the patient. We reported our clinical experience and our fundamental research. [less ▲]

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See detailOn the mtDNA restriction patterns variation of the Iberian wood mouse (Apodemus sylvaticus). Comparison with other west Mediterranean populations.
Michaux, Johan ULg; Libois, Roland ULg; Ramalhinho, M. G. et al

in Hereditas (1998), 129(3), 187-94

In previous studies, the presence of three main lineages of wood mice mtDNA was described in western Europe: a first one distributed from the Pyrenees to Scandinavia. a Thyrrenian one occurring in ... [more ▼]

In previous studies, the presence of three main lineages of wood mice mtDNA was described in western Europe: a first one distributed from the Pyrenees to Scandinavia. a Thyrrenian one occurring in peninsular Italy, Elba, Corsica and Sardinia and a third one restricted to Sicily and Marettimo. Do the Iberian wood mice belong to one of these lineages? In order to answer this question, animals were trapped all over the Iberian peninsula (11 sites) as well as in three of the Balearic islands. Comparisons with specimens from the above mentioned lineages were made. From 158 animals trapped in 30 sites, 78 different mtDNA restriction patterns were obtained and compared using the NEI and LI index ((Nei M and Li WH, (1979). Mathematical model for studying genetic variation in terms of restriction endonucleases. Proc. Natl. Acad. Sci. USA 76: 5269-5273) of nucleotide divergence. A neighbour-joining tree, with a specimen of Apodemus flavicollis as outgroup, was then computed from the similarity matrix. Apodemus flavicollis is well separated from all the A. sylvaticus and all the Iberian restriction patterns are clustered with those of continental France, showing a great similarity level between the Iberian and north-west European animals. This group is well separated from the Sicilian and from the Tyrrhenian ones. These results suggest that the Pyrenees are not a biogeographic barrier for the wood mouse and that the postglacial recolonisation of western Europe by that species has its origin in populations which, during the latest Ice age, were living in refuges situated in southern France or in the Iberian peninsula. Because the Balearic restriction patterns are clustered in a lineage joining Iberian pattern at a low divergence level, we suggest that their origin is continental Spain or southern France. [less ▲]

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See detailTexture control of freeze-dried resorcinol-formaldehyde gels
Kocklenberg, Régine; Mathieu, Bernard; Blacher, Silvia ULg et al

in Journal of Non-Crystalline Solids (1998), 225

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See detailnote sous C. Arbitrage, 11 décembre 1996
Moreau, Pierre ULg

in Journal des Juges de Paix = Tijdschrift van de Vrederechters (1998)

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See detailApplication of CAPE techniques to the revamping of existing electrical power plants: an example of interdisciplinary collaboration.
Heyen, Georges ULg; Vrielynck, B.; Kalitventzeff, Boris ULg

in Computers & Chemical Engineering (1998), 22(Suppl. S), 239-246

Coupling of a partial oxidation reactor with a gas turbine. is proposed to increase the capacity and efficiency of thermal power plants. The exhaust of the partial oxidation gas turbine:is a preheated ... [more ▼]

Coupling of a partial oxidation reactor with a gas turbine. is proposed to increase the capacity and efficiency of thermal power plants. The exhaust of the partial oxidation gas turbine:is a preheated fuel that can be burned with little modification in the existing steam generator. The feasibility study requires the development of a reliable model for an existing 250 MW power plant. Data reconciliation is found valuable for obtaining precise mass and energy balances and for screening out unreliable measurements. The identification of model parameters from reconciled values is then straightforward. The same validation Software is later applied to rating simulation of the modified plant, by merging the partial oxidation gas turbine in the model. (C) 1998 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailStudy of exo-beta-1,3-glucanase activity production by the yeast Pichia anomala in relation to its antagonistic properties against Botrytis cinerea on postharvest apples.
Grevesse, C.; Jijakli, Mohamed ULg; Lepoivre, Philippe ULg

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1998), 63(4b), 1685-1682

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See detailTranscription factor AP1 is involved in basal and okadaic acid-stimulated activity of the human PRL promoter
Caccavelli, Laure; Manfroid, Isabelle ULg; Martial, Joseph ULg et al

in Molecular Endocrinology (Baltimore, Md.) (1998), 12(8), 1215-27

The tumor promoter, okadaic acid (OA), an inhibitor of protein phosphatases, stimulates the activity of the human PRL (hPRL) proximal promoter. We analyzed in detail the effects of OA on transcription ... [more ▼]

The tumor promoter, okadaic acid (OA), an inhibitor of protein phosphatases, stimulates the activity of the human PRL (hPRL) proximal promoter. We analyzed in detail the effects of OA on transcription factor binding to elements P1 and P2 of this promoter, sequences known to contain at least one Pit-1 binding site each. OA treatment induces binding of an AP1-related transcription factor to the P1 site. This effect is specific, as protein binding to the P2 site is not altered by the treatment. Specific antibodies were used to confirm that the OA-induced complex is related to AP1 and to show that it contains JunD and c-fos, but not Pit-1. The increase in AP1 binding to P1 and to a canonical AP1 site correlates to an increase in cellular JunD and c-fos content. Transient transfection experiments showed that both AP1 and Pit-1 are involved in the regulation of basal and OA-stimulated promoter activity. Our results demonstrate that a member of the AP1 family, containing JunD and c-fos, can bind to the proximal element P1 within the hPRL promoter. In addition, they show that AP1 is involved in both basal and OA-stimulated expression of the hPRL gene. [less ▲]

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See detailIntérêt de l'évaluation fonctionnelle du patient lombalgique fréquentant une école du dos
Vanderthommen, Marc ULg; Drosson, C.; TOMASELLA, Marco ULg et al

in Kiné Acta-Symposium (1998)

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See detailMotivations et satisfactions des dirigeants de clubs sportifs. Cas du football belge francophone à trois niveaux de jeux différents
Cloes, Marc ULg; Ledent, Maryse; Chapelle, Jean-Yves et al

in AES Magazine (1998), 53

Le sport représente un phénomène culturel et social incontournable à l'échelle de la planète. La Commission de la culture, de la jeunesse, de l'éducation et des médias de l'Union européenne considère qu ... [more ▼]

Le sport représente un phénomène culturel et social incontournable à l'échelle de la planète. La Commission de la culture, de la jeunesse, de l'éducation et des médias de l'Union européenne considère qu'il est pratiqué par plus de 100 millions de citoyens européens. Elle a rappelé que ces activités sont liées à des dizaines de milliers de cercles. Traditionnellement, leur fonctionnement repose sur le dévouement de nombreux bénévoles. ... [less ▲]

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See detailStructures de collaboration entre communes
Merenne-Schoumaker, Bernadette ULg; Herbiet, Michel ULg; Jehin, Jean-Baptiste et al

in Mouvement Communal (1998), (12), 629-643

Etude comparative de 35 structures de collaboration entre communes en Allemagne, Angleterre, France, Pays-Bas et Québec et analyse détaillée de 4 structures sélectionnées : Communauté de communes (France ... [more ▼]

Etude comparative de 35 structures de collaboration entre communes en Allemagne, Angleterre, France, Pays-Bas et Québec et analyse détaillée de 4 structures sélectionnées : Communauté de communes (France), Parc naturel régional (France), Municipalité régionale de comté (Québec) et Kreis (Allemagne). [less ▲]

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See detailVisages de l'étrangeté et formes du rêve
Gauthier, Jean-Marie ULg

in Revue Belge de Psychanalyse (1998), 33

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See detailNeurophysiological approach to primary headache pathophysiology.
Lozza, A.; Proietti Cecchini, A.; Afra, J. et al

in Cephalalgia : An International Journal of Headache (1998), 18 Suppl 21

Electroencephalography (EEG), evoked potentials (EP), and electromyography (EMG) techniques are useful tools in the clinical assessment of headache and in understanding the pathophysiological mechanisms ... [more ▼]

Electroencephalography (EEG), evoked potentials (EP), and electromyography (EMG) techniques are useful tools in the clinical assessment of headache and in understanding the pathophysiological mechanisms of these pathologies. EEG and EP studies in migraine revealed functional abnormalities in cortical electrical activity and in sensory processing. EMG studies resulted in pain syndromes involving nerves or myofascial structures such as tension-type headache and cluster headache. Moreover, it was possible to test the effect of old and new drugs with the help of these neurophysiological techniques. An updated review is reported of the literature. [less ▲]

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See detailUse of the yeast YOL112w gene as an experimental tool to elucidate the cellular function of the Tre2 oncogene implicated in the Ewing's sarcoma.
Bach, Stéphane; Bouchat, Olivier; Portetelle, Daniel ULg et al

in Archives Internationales de Physiologie et de Biochimie (1998), 106

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See detailStudy of vaccinia virus binding and entry using confocal microscopy, an original approach
Vanderplasschen, Alain ULg; Smith, G. L.

in Biology of the Cell (1998), 90

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See detailCytokinins and ethylene stimulate indole alkaloid accumulation in cell suspension cultures of Catharanthus roseus by two distinct mechanisms
Yahia, Abdelouahab; Kevers, Claire ULg; Gaspar, Thomas ULg et al

in Plant Science (1998), 133(1), 9-15

The interactions between cytokinins and ethylene on alkaloid accumulation in a periwinkle cell line have been examined. It was found that (a) either exogenously-applied cytokinins or ethylene (the latter ... [more ▼]

The interactions between cytokinins and ethylene on alkaloid accumulation in a periwinkle cell line have been examined. It was found that (a) either exogenously-applied cytokinins or ethylene (the latter through ethephon degradation) greatly enhanced ajmalicine accumulation in cells subcultured in a 2,4-dichlorophenoxyacetic acid-free medium; (b) the enhancing effect of cytokinin was not mediated by enhancement of endogenous ethylene production contrary to what is found in some plant models, (c) the responses to exogenous cytokinin and ethylene were additive and showed a different pattern of expression. It may be concluded that cytokinin and ethylene can up-regulate the alkaloid production in a periwinkle cells through independent pathways when added exogenously to the cultures. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved. [less ▲]

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See detailVillers-le-Bouillet/Vaux-et-Borset : campagne de fouille à "La Chapelle Blanche"
Hauzeur, Anne; Delye, Emmanuel ULg; Caspar, Jean-Paul

in Chronique de l'Archéologie Wallonne (1998), 6

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See detailCompte-rendu - Le nouveau Code wallon de l'aménagement du territoire
Delnoy, Michel ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1998)

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See detailMéthodes chromatographiques de dosage dans les milieux biologiques : exemple d'application de la stratégie de validation - Rapport d'une commission SFSTP
Chapuzet, E.; Mercier, N.; Bervoas-Martin, S. et al

in STP Pharma Pratiques (1998), 8(2), 81-107

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See detailPotentiels urbains et îlots de chaleur
Cornélis, Bernard ULg; Binard, Marc ULg; Nadasdi, Istvan

in Publications de l'Association Internationale de Climatologie (1998), 10

The present contribution aims at answering in a quantitative way the question: is there a relationship between urban heat island and urban potential ? If such a relationship exits, it tries to quantify it ... [more ▼]

The present contribution aims at answering in a quantitative way the question: is there a relationship between urban heat island and urban potential ? If such a relationship exits, it tries to quantify it and to answer the following questions : - would the potential model allow the representation of the heat island phenomenon ? - If so, in which conditions ? [less ▲]

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See detailAb initio phonon dispersion curves and interatomic force constants of barium titanate
Ghosez, Philippe ULg; Gonze, X.; Michenaud, J. P.

in Ferroelectrics (1998), 206(1-4), 205-217

The phonon dispersion curves of cubic BaTiO3 have been computed within a first-principles approach and the results compared to the experimental data. The curves obtained are very similar to those reported ... [more ▼]

The phonon dispersion curves of cubic BaTiO3 have been computed within a first-principles approach and the results compared to the experimental data. The curves obtained are very similar to those reported for KNbO3 by Yu and Krakauer (Phys. Rev. Lett., 74, 4067 (1995)). They reveal that correlated atomic displacements along [100] chains are at the origin of the ferroelectric instability. A simplified model illustrates that spontaneous collective displacements will occur when a dozen of aligned atoms are coupled. The longitudinal interatomic force constant between nearest neighbour Ti and O atoms is relatively weak in comparison to that between Ti atoms in adjacent cells. The small coupling between Ti and O displacements seems however necessary to reproduce a linear ferroelectric instability. [less ▲]

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See detailHsv-1 Thymidine Kinase Gene Therapy for Peritoneal Carcinomatosis
Lechanteur, Chantal ULg; Princen, Frédéric; Lo Bue, S. et al

in Advances in Experimental Medicine and Biology (1998), 451

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See detailP53, Bax and Bcl-2 in Vivo Expression in the Murine Thymus after Apoptogenic Treatments
Denis, Ghislaine; Humblet, Chantal ULg; Verlaet, Myriam ULg et al

in Anticancer Research (1998), 18(5, Sep-Oct), 3315-21

BACKGROUND: Neoplasia can results from a lack of cell elimination by apoptosis. In order to determine if mechanisms controlling apoptosis are disturbed during neoplastic transformation in a model of ... [more ▼]

BACKGROUND: Neoplasia can results from a lack of cell elimination by apoptosis. In order to determine if mechanisms controlling apoptosis are disturbed during neoplastic transformation in a model of murine radio-induced thymic lymphomas, we have assessed the kinetics of p53, Bax and Bcl-2 in situ expression after induction of thymic apoptosis by irradiation or glucocorticoids at first in normal mice. MATERIALS AND METHODS: TUNEL method was used for in situ detection of apoptosis and protein expression was determined by indirect immunohistochemistry. RESULTS: After hydrocortisone injection, levels of p53 and Bax, but not Bcl-2, expression were raised. A whole body sublethal irradiation led to an increase of p53 and Bcl-2, but not Bax, expression. CONCLUSIONS: This is the first in vivo report of in situ protein expression in the thymus after apoptogenic treatments of mice. The results suggest that Bax could be involved in glucocorticoid-mediated apoptosis. The increased levels of Bcl-2 expression are discussed. [less ▲]

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See detailPathologie bovine : transport de l’oxygène et solutions salines
Gustin, Pascal ULg; Cambier, Carole ULg; Frans, A. et al

in Agricontact (1998), 302

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See detailLes liens sociaux entre dirigeants et le déclenchement de la coopération interentreprises
Froehlicher, Thomas ULg

in Finance Contrôle Stratégie (1998)

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See detailPlace de l'acarbose dans le traitement du diabete sucre.
Scheen, André ULg

in Diabètes & Métabolism (1998), 24(4), 385-90

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See detailFurther observations on the lichen genus Strigula in New Zealand
Sérusiaux, Emmanuël ULg

in Bryologist (1998), 101

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See detailJustice et injustice du Tanfîl. La part du légal et du conventionnel dans la construction sociale du sens ordinaire du juste
Nachi, Mohamed ULg

in Droit et Société (1998), 39

In this article, we propose, from a socio-anthropological point of view, a comparative approach of the ordinary sense of justice through the analysis of a paradigmatic case of sharing according to the ... [more ▼]

In this article, we propose, from a socio-anthropological point of view, a comparative approach of the ordinary sense of justice through the analysis of a paradigmatic case of sharing according to the mode of tanfîl. We begin with the examination of the two principal meanings, religious and customary, of this institution as to the different modalities of its implementation. Then, from this detailed analysis of the forms of justifications and judgments displayed by the Tunisians and the French concerning this case of sharing, we pointed out how the positions, of the ones and others, waver between two conceptions of justice: according to the first one, there is an adequacy between the legal and the just, whereas, according to the second, there is an inadequacy between the two. In the first case, there is a systematic recourse to the law as a referent of justification at the prejudice of the conventional norms, in the second, it’s the opposite that happens. Lastly, we will see, through the exigency of compromise, that finally the sense of justice situates between the two. [less ▲]

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See detailLesions of morbillivirus infection in a fin whale (Balaenoptera physalus) stranded along the Belgian coast
Jauniaux, Thierry ULg; Charlier, G.; Desmecht, M. et al

in Veterinary Record : Journal of the British Veterinary Association (1998), 143(15), 423-424

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See detailPremière mise en évidence en Belgique de particules ressemblant à des circovirus.
Duchatel, Jean-Pierre ULg; Jauniaux, Thierry ULg; Vandersanden F et al

in Annales de Médecine Vétérinaire (1998), 142

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See detailDestabilization Of A Model Membrane By A Predicted Fusion Peptide Of Fertilin Alpha
Schanck, A.; Brasseur, Robert ULg; Peuvot, J.

in Journal de Chimie Physique et de Physico-Chimie Biologique (1998), 95(2), 467-73

The subunit a of the guinea pig fertilin (previously known as PH-30, an integral membrane protein involved in sperm-egg binding and fusion) is predicted to be a potential fusion protein.The structure of ... [more ▼]

The subunit a of the guinea pig fertilin (previously known as PH-30, an integral membrane protein involved in sperm-egg binding and fusion) is predicted to be a potential fusion protein.The structure of this putative fusion protein was analysed by molecular modeling and we have found a peptidic sequence of 17 residues (D83-P99) organized in helix that inserts obliquely in lipid phases. The effect of ths synthesized peptide was studied on a model membrane by 3lP NMR and light scattering. It appears to increase the size of lipid vesicles and induces structural odifications. We interpret these observations as a destabilization of the lipid organization by this peptide because of its tilted insertion in phospholipid layers. This destabilization could favor membrane fusion. [less ▲]

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See detailA comparison between the TEC computed using GPS and ionosonde measurements
Warnant, René ULg; Jodogne, Jean-Claude

in Acta Geodaetica et Geophysica Hungarica (1998), 33(1), 147-153

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See detailLe syndrome X, a la croisee des maladies metaboliques et cardio-vasculaires.
Scheen, André ULg

in Revue Médicale de Liège (1998), 53(1), 29-32

The relationships between metabolic disorders and cardiovascular diseases are very strong. Hypercholesterolaemia and diabetes mellitus, for instance, are well-known risk factors. The multifaceted ... [more ▼]

The relationships between metabolic disorders and cardiovascular diseases are very strong. Hypercholesterolaemia and diabetes mellitus, for instance, are well-known risk factors. The multifaceted metabolic syndrome or syndrome X, originally described by Reaven in 1988, comprises several abnormalities which are associated to insulin resistance and compensatory hyperinsulinaemia. Syndrome X results in an increased vascular risk by at least two mechanisms. On the one hand, it favours atherosclerosis and is associated to angiographic lesions, especially in the coronary arteries. On the other hand, it is associated to endothelial dysfunction which may contribute to myocardial ischaemia even in presence of angiographically normal arteries, a phenomenon named also syndrome X by the cardiologists. Thus, metabolic syndrome X and cardiological syndrome X are very close and syndrome X may be considered as a crossing between metabolic disorders and cardiovascular diseases. [less ▲]

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See detailBelgium : a planning environment both rigid and flexible
Merenne-Schoumaker, Bernadette ULg

in European Retail Digest (1998), (20), 29-30

Short notice on commercial planning in Belgium in a comparative perspective with other European countries analyzed in the same publication

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See detailA Rank-Based Nonparametric Method for Mapping Quantitative Trait Loci in Outbred Half-Sib Pedigrees: Application to Milk Production in a Granddaughter Design
Coppieters, Wouter ULg; Kvasz, A.; Farnir, Frédéric ULg et al

in Genetics (1998), 149(3), 1547-55

We describe the development of a multipoint nonparametric quantitative trait loci mapping method based on the Wilcoxon rank-sum test applicable to outbred half-sib pedigrees. The method has been evaluated ... [more ▼]

We describe the development of a multipoint nonparametric quantitative trait loci mapping method based on the Wilcoxon rank-sum test applicable to outbred half-sib pedigrees. The method has been evaluated on a simulated dataset and its efficiency compared with interval mapping by using regression. It was shown that the rank-based approach is slightly inferior to regression when the residual variance is homoscedastic normal; however, in three out of four other scenarios envisaged, i.e., residual variance heteroscedastic normal, homoscedastic skewed, and homoscedastic positively kurtosed, the latter outperforms the former one. Both methods were applied to a real data set analyzing the effect of bovine chromosome 6 on milk yield and composition by using a 125-cM map comprising 15 microsatellites and a granddaughter design counting 1158 Holstein-Friesian sires. [less ▲]

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See detailAutomatic Synthesis of [18F]Altanserin, a Radiopharmaceutical for Positron Emission Tomographic Studies of the Serotonergic Type-2 Receptors
Monclus, Michel; Van Naemen, John; Mulleneers, Eric et al

in Clinical Positron Imaging (1998), 1(2), 111-116

[18F]Altanserin is routinely used in several centers to study the serotonergic type-2 receptors (5HT2) with positron emission tomography (PET). An automatic production system allowing the preparation of ... [more ▼]

[18F]Altanserin is routinely used in several centers to study the serotonergic type-2 receptors (5HT2) with positron emission tomography (PET). An automatic production system allowing the preparation of multimillicurie amounts [>1.5 GBq (40 mCi) EOS, mean radiochemical yield 20 ± 6% EOB, specific activity >1 Ci/µmol Image] of this radiopharmaceutical within a synthesis time of 90 minutes (quality controls included) is described in this paper. The apparatus includes the recovery of the activity from the target, the preparation of the dried [18F]KF/kryptofix 2.2.2 complex, the labeling reaction using a microwave cavity, the Sep Pak and HPLC purification. A sterile, pyrogen-free and single use unit was also developed for the formulation of the injectable solution. This last part could be used for the formulation of many other radiopharmaceuticals. [less ▲]

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See detailA Descriptive Analysis Of Populations Of Three-Dimensional Structures Calculated From Primary Sequences Of Proteins By Osiris
Benhabiles, N.; Gallet, X.; Thomas, Annick ULg et al

in Journal of Computational Biology (1998), 5(2), 351-66

Among different ab initio approaches to calculate 3D-structures of proteins out of primary sequences, a few are using restricted dihedral spaces and empirical equations of energy as is OSIRIS. All those ... [more ▼]

Among different ab initio approaches to calculate 3D-structures of proteins out of primary sequences, a few are using restricted dihedral spaces and empirical equations of energy as is OSIRIS. All those approaches were calibrated on a few proteins or fragments of proteins. To optimize the calculation over a larger diversity of structures, we need first to define for each sequence what are good conditions of calculations in order to choose a consensus procedure fitting most 3D-structures best. This requires objective classification of calculated 3D-structures. In this work, populations of avian and bovine pancreatic polypeptides (APP, BPP) and of calcium-binding protein (CaBP) are obtained by varying the rate of the angular dynamics of the second step of OSIRIS. Then, 3D-structures are clustered using a nonhierarchical method, SICLA, using rmsd as a distance parameter. A good clustering was obtained for four subpopulations of APP, BPP and CaBP. Each subpopulation was characterized by its barycenter, relative frequency and dispersion. For the three alpha-helix proteins, after the step 1 of OSIRIS, most secondary structures were correct but molecules have a few atomic contacts. Step 2, i.e., the angular dynamics, resolves those atomic contacts and clustering demonstrates that it generates subpopulations of topological conformers as the barycenter topologies show. [less ▲]

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See detailA lichenological excursion in May 1997 near Han-sur-Lesse and Saint-Hubert, with notes on rare or critical taxa of the flora of Belgium and Luxembourg
van den Boom, Pieter; Sérusiaux, Emmanuël ULg; Diederich, Paul et al

in Lejeunia, Revue de Botanique (1998), 158

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See detailAtmungsmechanik beim Tier. 4. Mitteilung : Die diagnostische Aussagefähigkeit von Untersuchungen mit dem Impuls-Oszilloresistometrie-System (IOS) beim Kalb
Reinhold, Petra; Langenberg, Annelie; Lekeux, Pierre ULg

in Berliner und Munchener Tierarztliche Wochenschrift (1998), 111(7-8), 262-267

Taking methodological and physiological aspects into account (see Part 3), the impulse oscillometry system (IOS) was found to be sensitive to detecting and to quantifying clinically relevant changes in ... [more ▼]

Taking methodological and physiological aspects into account (see Part 3), the impulse oscillometry system (IOS) was found to be sensitive to detecting and to quantifying clinically relevant changes in respiratory mechanics in calves. Therefore, the complex respiratory impedance needs to be measured in terms of resistance and reactance within the frequency range between 5 Hz and 20 Hz. The behaviour of resistance and reactance in dependence of frequency allows to differentiate and to localise airway obstructions. Obstructions of upper (extrathoracic) airways were mainly characterised by a frequency independent increase in the resistance. Within the reactance curve, no change in the resonant frequency could be observed. In a peripheral airway obstruction both resistance and reactance changed. The most typical finding concerning resistance was that a negative frequency dependence occurred. The reactance became more negative. Following this, the resonant frequency increased. With progressive obstruction of the peripheral airways, the reactance became more informative than resistance. [less ▲]

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See detailHemovigilance: Clinical Tolerance of Solvent-Detergent Treated Plasma
Baudoux, Etienne ULg; Margraff, U.; Coenen, Alain ULg et al

in Vox Sanguinis (1998), 74(Suppl 1), 237-9

OBJECTIVE: This study was conducted to assess retrospectively the clinical tolerance of SD treated plasma and to compare it to other labile blood products (red blood cell and platelet concentrates ... [more ▼]

OBJECTIVE: This study was conducted to assess retrospectively the clinical tolerance of SD treated plasma and to compare it to other labile blood products (red blood cell and platelet concentrates). METHODS: Adverse events (AEs) related to the use of blood products at the Blood Transfusion Center (BTC) are routinely collected through a formalised system of hemovigilance. All AEs reported are entered into a safety data base which was used for the study. All AEs reported during a one-year period to the BTC were retrospectively re-assessed and descriptive statistics calculated. RESULTS: 5064 units of SD treated plasma were transfused to 894 recipients during the study period at the occasion of 1553 transfusions. No AE associated to SD treatment plasma was reported during that period. In contrast, during the same period, 485 AEs associated with the use of red blood cell concentrates (RBCC) were reported in 251 patients at the occasion of 262 transfusions. 2.1% (251/11,748) of the patients transfused with RBCC experienced one or more AEs. The incidence of AEs per unit transfused was 1.3% (485/37,332), and 2.4% (485/20,460) of RBCC transfusions were associated with one or more AEs. 142 AEs associated with the use of platelet concentrate (PC) were observed in 69 patients at the occasion of 73 transfusions. 4.2% (69/1645) of patients transfused with PC experienced one or more AEs. The incidence of AEs per unit transfused was 1.1% (142/12,772), and 2.8% (142/5034) of PC transfusions were associated with one or more AEs. All reported AEs were classified and non serious. The most frequently observed AEs were fever, chills and rashes which accounted for roughly 64% of all reported AEs. CONCLUSION: As for the overall clinical tolerance of red cell and platelet concentrates, the results of this study are in complete agreement with the published literature. The study also confirms the extremely good tolerability of SD treated plasma in comparison with other labile blood products. [less ▲]

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See detailLifetime measurements in odd-parity Rydberg series of neutral Lead by time-resolved laser spectroscopy
Li, Z. S.; Svanberg, S.; Biémont, Emile ULg et al

in Physical Review. A (1998), 57

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See detailTrophic relationships within intertidal communities of the Brittany coast: a stable carbon isotope analysis
Dauby, Patrick ULg; Khomsi, Ahmid; Bouquegneau, Jean-Marie ULg

in Journal of Coastal Research (1998), 14

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See detailMéningo-encéphalite granulomateuse à Aspergillus sp. chez une chienne Airedale Terrier de un an
Poncelet, Luc; Belayat, F.; Losson, Bertrand ULg et al

in Annales de Médecine Vétérinaire (1998)

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See detailLe Forestor Vertex: une nouvelle génération de dendromètres.
Rondeux, Jacques ULg; Pauwels, D.

in Revue Forestière Française (1998), 50(1), 59-64

The new generation of hypsometers, of which the Swedish Forestor Vertex is representative, use ultrasonic pulses to determine heights from 0 to 100 m, as well as distances and angles. The authors describe ... [more ▼]

The new generation of hypsometers, of which the Swedish Forestor Vertex is representative, use ultrasonic pulses to determine heights from 0 to 100 m, as well as distances and angles. The authors describe the operating principle for this hypsometer and point out some precautions that should be taken when using it. They highlight its main advantages and provide data on its precision. [less ▲]

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See detailEffect Of Drying On Bioremediation Bacteria Properties
Weekers, F.; Jacques, Philippe ULg; Springael, D. et al

in Applied Biochemistry and Biotechnology (1998), 70-2

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See detailIsolation and Partial Characterization of a Pregnancy-Associated Glycoprotein Family from the Goat Placenta
Garbayo, Juana Maria; Remy, Benoit; Alabart, José Luis et al

in Biology of Reproduction (1998), 58(1), 109-115

Antigen(s) immunologically related to pregnancy-associated glycoproteins (PAGs) have previously been detected in the serum of pregnant goats. In this work, we describe a partial characterization of a ... [more ▼]

Antigen(s) immunologically related to pregnancy-associated glycoproteins (PAGs) have previously been detected in the serum of pregnant goats. In this work, we describe a partial characterization of a family of PAGs isolated from the placenta of the goat. The procedure, monitored by RIA, included extraction of proteins at neutral pH, acidic, and ammonium sulfate precipitations; and gel filtration and ion exchange chromatographies. Immunoreactivity, initially located in the acidic supernatant and in the 40-80% ammonium sulfate fractions, was equally apportioned between the 0.04 and 0.08 M NaCl DEAE fractions. After further purification of both DEAE fractions, the preparations were subjected to one- and two-dimensional electrophoresis, and individual polypeptides were analyzed by amino acid sequencing. Three PAGs, which differed in amino acid sequence and apparent molecular masses (62, 59, and 55 kDa), were detected, each containing several isoforms with different pls: caprine (c) PAG62 (pl: 5.1, 4.8), cPAG59 (pl: 6.2, 5.9, 5.6), and cPAG55 (pl: 5.3, 5.1, 4.9). These proteins had high sequence identities to each other and to PAGs purified from other species. Each had two putative N-glycosylation sites within the 27 amino terminal residues sequenced. This work demonstrates that PAGs are present in goat placenta and that multiple forms are expressed. [less ▲]

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See detailFoaming properties of lipopeptides produced by Bacillus subtilis: effect of lipid and peptide structural attributes
Razafindralambo, Hary ULg; Popineau, Yves; Deleu, Magali ULg et al

in Journal of Agricultural and Food Chemistry (1998), 46(3), 911-916

To study the effect of lipid and peptide structural attributes of Bacillus subtilis lipopeptides on their foaming properties, the formation, stability, and appearance of foams prepared with surfactins ... [more ▼]

To study the effect of lipid and peptide structural attributes of Bacillus subtilis lipopeptides on their foaming properties, the formation, stability, and appearance of foams prepared with surfactins (C13 C15) and iturins A (C14 C17) were characterized. The density and stability of lipopeptide foams depend on both the alkyl chain hydrophobic character and peptide molecular intrinsic properties. A lipidic chain length of 14 carbon atoms provides lipopeptides with the best foaming properties in terms of foam density and liquid stability in foams. Increases in alkyl chain length above 15 carbon atoms result in a drastic decrease of iturin A foam density. With the same alkyl chain, surfactin produces denser foam whereas iturin A exhibits better foaming stability. These results demonstrate the importance of the peptide structural attributes of B. subtilis on their foaming properties. [less ▲]

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See detailAn extension of the radial return algorithm to account for rate-dependent effects in frictional contact and visco-plasticity
Ponthot, Jean-Philippe ULg

in Journal of Materials Processing Technology (1998), 80-1

This paper deals with unified elasto-plastic and elastic-visco-plastic constitutive equations for metals submitted to large deformations. We present here a newly developed time integration algorithm which ... [more ▼]

This paper deals with unified elasto-plastic and elastic-visco-plastic constitutive equations for metals submitted to large deformations. We present here a newly developed time integration algorithm which is an extension to the visco-plastic range of the classical radial return algorithm for plasticity. The resulting implicit algorithm is both efficient and very inexpensive. This algorithm is also subsequently extended to frictional problems where it allows a generalisation of the classical Coulomb dry friction criterion to a criterion depending on the relative slip velocity such as those encountered in the hydrodynamic regime. (C) 1998 Elsevier Science S.A. All rights reserved. [less ▲]

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See detailA theoretial investigation of neutral francium
Biémont, Emile ULg; Quinet, Pascal ULg; Van Renterghem, V.

in Journal of Physics : B Atomic Molecular & Optical Physics (1998), 31

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See detailSeasonal variations in time and space utilization by radio-tagged yellow eels Anguilla anguilla (L.) in a small stream
Baras, Etienne; Jeandrain, Denys ULg; Serouge, Benoît et al

in Hydrobiologia (1998), 371/372

Seven yellow eels (572–643 mm, 318–592 g) Anguilla anguilla (L.) were tagged with surgically implanted radio transmitters (activity circuit, 1.6–1.7 g) and tracked in the Awirs stream, a small (width <5 m ... [more ▼]

Seven yellow eels (572–643 mm, 318–592 g) Anguilla anguilla (L.) were tagged with surgically implanted radio transmitters (activity circuit, 1.6–1.7 g) and tracked in the Awirs stream, a small (width <5 m, depth from 0.1 to 1.2 m), densely populated (ca. 250 kg of eel ha−1) tributary of the Belgian River Meuse. The eels were positioned daily from late April to mid-August, and their diel activity was studied during twenty four 24-h cycles. During day-time, the eels were resting in rootwads or in crevices inside stone walls or in crevices in between rocks. They became more active in the late afternoon but generally did not leave their residence before sunset, except under overcast weather. Activity peaked during the first part of the night then progressively vanished, and always ended before sunrise. The area exploited during night-time never extended over more than 40 m2, except when the eel changed its residence. The intensity and timing of nocturnal activity and the extent of the daily activity area were dependent on water temperature (respectively P<0.0001, P<0.05 and P<0.0005), with eels showing little or no activity when the diurnal temperature did not exceed 13 _C. Eels showed higher agitation under full moon and maintained their activity later in the night (P<0.05). The eels showed restricted mobility, and occupied small stream areas (from 0.01 to 0.10 ha) in a non sequential mode, except for two fish which were displaced to the River Meuse by a spate in early June and were never recovered. The length and frequency of net daily journeys were higher (P = 0.005) at water temperatures above 16 _C in late May and June, which also corresponded to the period of immigration of eels from the River Meuse. This study thus shows that large yellow eels may adopt a highly sedentary lifestyle in a continental, fast flowing and densely populated environment, even at periods of the year when these stages usually show upstream migrations. [less ▲]

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See detailDistribution of vortex lattice melting temperatures in mixed state diagram of Bi2212 tapes
Pekala, M.; Bougrine, Hassan ULg; Gadomski, W. et al

in Physica C (1998), 303(3-4), 169-176

The electrical resistivity in the mixed state of Bi2212 tape superconductors can be accurately reconstructed for values below approximately a half of the normal state value of resistivity, assuming a ... [more ▼]

The electrical resistivity in the mixed state of Bi2212 tape superconductors can be accurately reconstructed for values below approximately a half of the normal state value of resistivity, assuming a Gaussian distribution for the vortex lattice melting temperatures. The magnetic field dependences of the distribution width and of the dB(c2)/dT parameter were calculated. Moreover the vortex liquid viscosity coefficient was determined between the vortex lattice melting temperature and T-c at various magnetic fields. It is pointed out that the vortex lattice melting transition should not be confused with the irreversibility line of magnetic studies nor with the percolation temperature line for electrical resistivity. (C) 1998 Elsevier Science B,V. All rights reserved. [less ▲]

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See detailA comparison of advanced thermal cycles suitable for upgrading existing power plants
Heyen, Georges ULg; Kalitventzeff, Boris ULg

in Applied Thermal Engineering (1998), 19

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See detailAlternative oxidase in the branched mitochondrial respiratory network: an overview on structure, function, regulation, and role.
Sluse, Francis ULg; Jarmuszkiewicz, W.

in Brazilian Journal of Medical and Biological Research = Revista Brasileira de Pesquisas Medicas e Biologicas (1998), 31

Plants and some other organisms including protists possess a complex branched respiratory network in their mitochondria. Some pathways of this network are not energy-conserving and allow sites of energy ... [more ▼]

Plants and some other organisms including protists possess a complex branched respiratory network in their mitochondria. Some pathways of this network are not energy-conserving and allow sites of energy conservation to be bypassed, leading to a decrease of the energy yield in the cells. It is a challenge to understand the regulation of the partitioning of electrons between the various energy-dissipating and -conserving pathways. This review is focused on the oxidase side of the respiratory chain that presents a cyanide-resistant energy-dissipating alternative oxidase (AOX) besides the cytochrome pathway. The known structural properties of AOX are described including transmembrane topology, dimerization, and active sites. Regulation of the alternative oxidase activity is presented in detail because of its complexity. The alternative oxidase activity is dependent on substrate availability: total ubiquinone concentration and its redox state in the membrane and O2 concentration in the cell. The alternative oxidase activity can be long-term regulated (gene expression) or short-term (post-translational modification, allosteric activation) regulated. Electron distribution (partitioning) between the alternative and cytochrome pathways during steady-state respiration is a crucial measurement to quantitatively analyze the effects of the various levels of regulation of the alternative oxidase. Three approaches are described with their specific domain of application and limitations: kinetic approach, oxygen isotope differential discrimination, and ADP/O method (thermokinetic approach). Lastly, the role of the alternative oxidase in non-thermogenic tissues is discussed in relation to the energy metabolism balance of the cell (supply in reducing equivalents/demand in energy and carbon) and with harmful reactive oxygen species formation. [less ▲]

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See detailDe l'hagiographie. De ses sources, de ses méthodes et de son histoire. A propos de publications récentes
George, Philippe ULg

in Revue Belge de Philologie et d'Histoire (1998), LXXVI

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See detailFeeding in darkness alleviates density-dependent growth of juvenile vundu catfish Heterobranchus longifilis (Clariidae)
Baras, E.; Tissier, F.; Westerloppe, L. et al

in Aquatic Living Resources (1998), 11

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See detailEtude radiologique de l’os naviculaire normal. Partie 1: que penser des canaux sésamoïdiens du bord distal
Gabriel, Annick ULg; Jolly, S.; Detilleux, Johann ULg et al

in Annales de Médecine Vétérinaire (1998), 142

The scoring system based on the different types of navicular distal border canals is a good method to quantify and relativise the anomalies in number, shape and localisation of the canals. The distal ... [more ▼]

The scoring system based on the different types of navicular distal border canals is a good method to quantify and relativise the anomalies in number, shape and localisation of the canals. The distal border score varies significantly with the limb (fore or rear), the morphological type, the gender and the age of the horse. These anatomical variations are of importance and must be taken into account when examining a suspect bone. The score is larger for the fore navicular bone than for the rear. It could be interesting to compare both scores: rear navicular bone score is generally equal to half (or slight less) that of the fore. The score is larger for heavy types of horses and ponies (drafthorse, heavy halfbreds and Fjords). This phenomenon could be related to a larger pressure within the distal interphalangeal joint. The score is lower for the athletic half bred than for other halfbreds. This could be the result of the changes in bone architecture induced by exercise and particularly bone densification. The score is lower for the female than for the male. We think that navicular bone quality is better for the female and this idea corroborates that of other authors that consider that the risk to develop navicular disease is smaller for the female than for the male. The score increases with age. it is particularly small in young horses less than two years old and then increases strongly. This phenomenon is to be related to the progressive development, in the first year of life, of the groove between articular cartilage and distal impar ligament, canals developping only later one. In athletic horses, the score is higher between 7 and 12 years of age. During this time, we also observe more degenerative changes within the navicular bone, which could mean that bone is of lesser quality. [less ▲]

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See detailAtlas du recensement : une lecture plurielle de la Wallonie
Merenne-Schoumaker, Bernadette ULg

in Revue du Conseil Economique et Social de la Région wallonne (1998), (52), 31-35

Présentation de la Wallonie à la lumière du recensement de 1991. Cinq traits majeurs sont mis en évidence : - une dualité Flandre)-Wallonie réelle mais non dominante, - un processus majeur : l ... [more ▼]

Présentation de la Wallonie à la lumière du recensement de 1991. Cinq traits majeurs sont mis en évidence : - une dualité Flandre)-Wallonie réelle mais non dominante, - un processus majeur : l'urbanisation, - le poids du passé industriel, - la dualisation de la société, - des modèle culturels nouveaux [less ▲]

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See detailIdentification of the perosamine synthetase gene of Brucella melitensis 16M and involvement of lipopolysaccharide O side chain in Brucella survival in mice and in macrophages.
Godfroid, F.; Taminiau, Bernard ULg; DANESE, Isabelle ULg et al

in Infection and Immunity (1998), 66(11), 5485-93

Brucella organisms are facultative intracellular bacteria that may infect many species of animals as well as humans. The smooth lipopolysaccharide (S-LPS) has been reported to be an important virulence ... [more ▼]

Brucella organisms are facultative intracellular bacteria that may infect many species of animals as well as humans. The smooth lipopolysaccharide (S-LPS) has been reported to be an important virulence factor of these organisms, but the genetic basis of expression of the S-LPS O antigen has not yet been described. Likewise, the role of the O side chain of S-LPS in the survival of Brucella has not been clearly defined. A mini-Tn5 transposon mutant library of Brucella melitensis 16M was screened by enzyme-linked immunosorbent assay (ELISA) with monoclonal antibodies (MAbs) directed against the O side chain of Brucella. One mutant, designated B3B2, failed to express any O side chain as confirmed by ELISA, Western blot analysis, and colony coloration with crystal violet. Nucleotide sequence analysis demonstrated that the transposon disrupted an open reading frame with significant homology to the putative perosamine synthetase genes of Vibrio cholerae O1 and Escherichia coli O157:H7. The low G+C content of this DNA region suggests that this gene may have originated from a species other than a Brucella sp. The survival of B. melitensis mutant strain B3B2 in the mouse model and in bovine macrophages was examined. The results suggested that S-LPS or, more precisely, its O side chain is essential for survival in mice but not in macrophages. [less ▲]

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See detailRésistance bactérienne aux beta-lactamines
Charlier, Paulette ULg; Coyette, Jacques ULg; Dehareng, Dominique ULg et al

in Medecine Sciences : M/S (1998), 14(5), 544-555

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See detailLe traitement des troubles chroniques des petites voies respiratoires
Van Erck, Emmanuelle; Duvivier, D.; Art, Tatiana ULg et al

in Pratique Vétérinaire Equine (1998), 30

Prevention and treatment of chronic respiratory diseases require improvement of the horse's environment (elimination of dust and allergen sources), adaptation of training conditions and early medical ... [more ▼]

Prevention and treatment of chronic respiratory diseases require improvement of the horse's environment (elimination of dust and allergen sources), adaptation of training conditions and early medical action against airway disfunctions. Therapeutic management rests on the control of inlammation and correction of functinnal disorders. Amongst all available drugs, corticosteroids are the most valued for theri anti-inflammatory actions, as well as their potentializing effect on bronchodilatators. Treatment can be delivered either systematically, in case of severe disease, or locally, by aerosoltherapy. This former technique allows delivery of precise doses and limits side effects. [less ▲]

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