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See detailLa tribologie, une spécialité liégeoise
Bozet, Jean-Luc ULg

in Athena (1994), 97

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See detailAnaphylatoxin C5a Production During Short-Term Submaximal Dynamic Exercise in Man
Camus, G.; Duchateau, J.; Deby, Ginette ULg et al

in International Journal of Sports Medicine (1994), 15(1), 32-5

We studied the effects of short-term submaximal exercise on the plasma levels of myeloperoxidase ([MPO]) and C5a anaphylatoxin ([C5a]), taken as specific markers of polymorphonuclear neutrophil (PMN) and ... [more ▼]

We studied the effects of short-term submaximal exercise on the plasma levels of myeloperoxidase ([MPO]) and C5a anaphylatoxin ([C5a]), taken as specific markers of polymorphonuclear neutrophil (PMN) and complement activation, respectively. Eleven young, healthy male volunteers were subjected to a constant-load concentric exercise on a cycle ergometer (20 min at 80% maximal oxygen uptake). Mean resting MPO and C5a concentrations were 437 +/- 113 and 0.47 +/- 0.21 ng/ml, respectively. During exercise, [MPO] and [C5a] increased significantly (p < 0.001) towards respective peak values of 649 +/- 131 and 1.3 +/- 0.6 ng/ml. A rapid decrease of both [MPO] and [C5a] was observed during recovery. The similar time course of [MPO] and [C5a] changes and the highly significant relationship between these two variables (r = 0.651; p < 0.001) argues for the possible involvement of the complement anaphylatoxin C5a in the process of PMN degranulation. During exercise, the number of circulating PMN increased (+80%; p < 0.001) and remained practically unchanged up to 20 minutes of recovery. As [MPO] and PMN count were not significantly related (r = 0.2; p < 0.1), we concluded that the activation of PMN was independent of their mobilization. [less ▲]

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See detailEffects of Apomorphine on Sexual Behavior in Male Quail
Absil, Philippe ULg; Das, S.; Balthazart, Jacques ULg

in Pharmacology, Biochemistry & Behavior (1994), 47(1), 77-88

In the rat, dopamine (DA) facilitates male copulatory behavior. Indirect evidence based largely on neuroanatomical data suggest that in quail DA is also implicated in the control of male reproductive ... [more ▼]

In the rat, dopamine (DA) facilitates male copulatory behavior. Indirect evidence based largely on neuroanatomical data suggest that in quail DA is also implicated in the control of male reproductive behavior but there is no pharmacological evidence to support this conclusion. To test this idea, castrated testosterone (T)-treated male quail were injected with various doses of the dopaminergic agonist apomorphine (APO) in the range 1-10,000 micrograms/kg. The sexual behavior of birds was recorded starting 15 min after APO injection for a duration of 30 min. A dose-dependent inhibition of male reproductive behavior that lasted for the entire duration of the test was observed. In a second experiment, gonadectomized T-treated male Japanese quail were injected daily with APO (0, 10, or 1,000 micrograms/kg) during 8 days. Their sexual interactions with a partner were quantified either 24 h or 15 min after the last injection. No influence of the treatment on copulatory behavior was observed 24 h after the last injection, but a strong inhibition was present when the test was performed 15 min after. To research whether the inhibitory effects of APO were due to a preferential action on D2 presynaptic autoreceptors, male quail were pretreated with two different D2 antagonists (spiperone or pimozide; 0.5 or 2 mg/kg) before being injected with APO (100 micrograms or 1 mg/kg). Spiperone facilitated male sexual behavior but did not suppress the inhibitory effect of APO. No significant effect of pimozide was observed. These results support the notion that DA modulates male sexual activity in the Japanese quail. The specific role of the different dopaminergic receptor subtypes remains, however, to be elucidated. [less ▲]

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See detailDetection of Human Papillomaviruses in Paraffin-Embedded Biopsies of Cervical Intraepithelial Lesions: Analysis by Immunohistochemistry, in Situ Hybridization, and the Polymerase Chain Reaction
Delvenne, Philippe ULg; Fontaine, Marie-Anne; Delvenne, Catherine ULg et al

in Modern Pathology : An Official Journal of the United States & Canadian Academy of Pathology, Inc (1994), 7(1), 113-119

One hundred and forty biopsies with an initial diagnosis of cervical intraepithelial lesion (CIL) were tested for the presence of human papillomavirus (HPV) by immunohistochemistry and in situ ... [more ▼]

One hundred and forty biopsies with an initial diagnosis of cervical intraepithelial lesion (CIL) were tested for the presence of human papillomavirus (HPV) by immunohistochemistry and in situ hybridization using commercial biotinylated probes (Vira-Type in situ assay; Digene Diagnostics, Silver Spring, MD) or probes labeled with digoxigenin by the random primer technique. Immunohistochemistry was more inferior to the in situ hybridization method, with a detection rate of 14% (20/140) compared to 61% (86/140) for the in situ assay with the digoxigenin-labeled probes. Biotinylated probes proved to be slightly less sensitive than digoxigenin-labeled probes, with a detection rate of 53% (74/140). Although less sensitive in our series taken as a whole, immunohistochemistry was positive in a few cases of CILs negative by in situ hybridization, so that the association of these techniques gave the highest detection rate (66%; 92/140). The CILs that remained negative with these methods (34%; 48/140) were investigated by the polymerase chain reaction (PCR) using consensus primers to determine definitively the presence of HPV in these lesions and were reviewed histologically to assess the diagnosis of CILs. The PCR method increased the detection rate of HPV in our series to 76% (107/140). The diagnosis of CILs was confirmed for all the biopsy specimens positive by PCR (15/15; 100%) and for all the HPV negative tissues with histological features of a high-grade lesions (7/7; 100%).(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailMicroencapsulation by Coacervation of Poly(lactide-co-glycolide). III. Characterization of the Final Microspheres
Nihant, Nicole; Stassen, Sophie; Grandfils, Christian ULg et al

in Polymer International (1994), 34

This paper deals with protein microencapsulation by coacervation of poly(lactide-co-glycolide) solutions in CH2Cl2 induced by the addition of silicone oils of various viscosities. This coating technique ... [more ▼]

This paper deals with protein microencapsulation by coacervation of poly(lactide-co-glycolide) solutions in CH2Cl2 induced by the addition of silicone oils of various viscosities. This coating technique proceeds along three steps: phase separation of the coating polyester, adsorption of the coacervate droplets around the protein phase, and hardening of microparticules. Size distribution, surface morphology and internal porosity of the final microspheres clearly depend on the main characteristics of the coacervate, particularly the viscosity, in a direct connection with the CH2Cl2 content. Indeed, the whole porosity (which may be as high as 80%), average pore size and broadness of pore size distribution decrease as the coacervate is more viscous. Hardening of the coacervate droplets is thus so fast that the organic solvent is entrapped within the polymer matrix and predetermines the internal porosity. Finally, size distribution of microspheres is bimodal in a clear relation with the coacervate viscosity. A less viscous coacervate favours smaller microspheres (within the 7-90 µm range), contaminated with a minor population of microparticles below 4 µm. [less ▲]

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See detailVers une théorie générale du signe
Badir, Sémir ULg

in Degrés : Revue de Synthèses à Orientation Sémiologique (1994), 79-80

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See detailExpected returns and volatility in european stock markets
Corhay, Albert ULg; Tourani-Rad, Alireza

in International Review of Economics and Finance (1994), 3(1), 45-56

The type of return generating process we test here on three European markets are GARCH and AR-GARCH in mean models with innovations that have either normal or student-t densities with time dependant ... [more ▼]

The type of return generating process we test here on three European markets are GARCH and AR-GARCH in mean models with innovations that have either normal or student-t densities with time dependant variances. These models are appealing in that they estimate time varying volatility in disturbances of stock returns series and ex-ante relationship between stock returns and volatility. Our results indicate that there is no statistically significant coefficient estimates for the volatility in the mean equation and that variance might not be appropriate as a measure of risk. Other proxies for risk should then be searched for. [less ▲]

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See detailMassive Ketonuria During Sedation with Propofol in a 12 Year Old Girl with Severe Head Trauma
Canivet, Jean-Luc ULg; Gustad, K.; Leclercq, P. et al

in Acta Anaesthesiologica Belgica (1994), 45(1), 19-22

Severe ketonuria developed during sedation with propofol in a 12 year old girl with brain injury. Deep sedation with propofol (5.1 mg/kg/h) was required because of agitation and severe intracranial ... [more ▼]

Severe ketonuria developed during sedation with propofol in a 12 year old girl with brain injury. Deep sedation with propofol (5.1 mg/kg/h) was required because of agitation and severe intracranial hypertension; as a part of our management protocol, glucose intake was restricted to 5 Kcal/h. After 18 hours of propofol infusion there was intense ketonuria (8+ by Ketostix) without any evidence of metabolic acidosis (pH, HCO3- and anion gap were within normal values). At this time, indirect calorimetry (Deltatrac) confirmed that energy expenditure was principally based on fat consumption (70% of energy expenditure). Lowering the propofol infusion rate and increasing glucose intake reduced fat consumption to 39% within 8 hours: at this time, Ketostix was negative for ketone bodies. This case illustrates a potential risk of ketonuria during prolonged sedation with propofol (a 10% solution of intralipid), particularly if glucose intake is restricted. Monitoring urinary ketone bodies is recommended under these circumstances. [less ▲]

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See detailLa régionalisation du droit pénal international
Flore, Daniel ULg; Thomas, F.

in Revue internationale de droit pénal (1994)

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See detailHormonal profile of growing male and female diploïds and triploïds of the blue tilapia, Oreochromis aureus, reared in intensive culture
Mol, K.; Byamungu, N.; Cuisset, B. et al

in Fish Physiology and Biochemistry (1994), 13

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See detailNote sous l'arrêt de la CJCE du 19 janvier 1994, Eurocontrol
Partsch, Philippe-Emmanuel ULg

in Journal des Tribunaux Droit Européen (1994)

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See detailEvaluation d’une expérience de rénovation de l’enseignement fondamental: Méthodologie de recherche
Piéron, Maurice; Cloes, Marc ULg; Delfosse, Catherine et al

in Revue de l'Education Physique (1994), 34(2-3), 53-58

Les expériences pédagogiques de mise en œuvre de nouvelles méthodes ou structures de rénovation de l'enseignement sont particulièrement ardues à évaluer quant à leurs effets. Se déroulant en milieu ... [more ▼]

Les expériences pédagogiques de mise en œuvre de nouvelles méthodes ou structures de rénovation de l'enseignement sont particulièrement ardues à évaluer quant à leurs effets. Se déroulant en milieu naturel, elles subissent l'influence d'un grand nombre de variables qu'il est bien difficile voire impossible de contrôler et parfois simplement de prendre en compte. Les impondérables sont multiples. La voie la moins aléatoire consiste en une démarche multidimensionnelle qui analyse l'élève et l'enseignant, sous plusieurs points de vue, sans négliger des facteurs d'environnement socio-économiques qui peuvent également se révéler déterminants. ... [less ▲]

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See detailSelected Bibliography of Criticism on the Prose Poem
Delville, Michel ULg

in The Prose Poem: an International Journal (1994), 3

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See detailL’expérience pédagogique: «Rénovation de l’enseignement fondamental - Développement corporel des enfants de 21/2 ans à 12 ans».
Piéron, Maurice; Cloes, Marc ULg; Delfosse, Catherine et al

in Informations pédagogiques (1994), 10

Delmelle (1992) a clairement défini la philosophie général de l'expérience pédagogique: "Compte tenu des besoins, des structures administratives en vigueur, des disponibilités matérielles et humaines et ... [more ▼]

Delmelle (1992) a clairement défini la philosophie général de l'expérience pédagogique: "Compte tenu des besoins, des structures administratives en vigueur, des disponibilités matérielles et humaines et des contraintes budgétaires, la commission a défini, de la manière suivante, la philosophie d'une rénovation possible à échéance immédiate. (a) Dans l'enseignement fondamental, tout enfant doit pratiquer l'activité physique à raison d'une séance quotidienne; il est parfaitement possible d'agir en sorte que les activités et les structures générales de l'école ne soient pas bouleversées. ..." ... [less ▲]

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See detailModification of immunoreactive EGF receptor after acute tubular necrosis induced by tobramycin or cisplatin
Leonard, I.; Zanen, J.; Nonclercq, D. et al

in Renal Failure (1994), 16(5), 583-608

Acute tubular necrosis induced by aminoglycoside antibiotics and various other nephrotoxins is followed by a regenerative process which leads to the restoration of damaged tubules. Several lines of ... [more ▼]

Acute tubular necrosis induced by aminoglycoside antibiotics and various other nephrotoxins is followed by a regenerative process which leads to the restoration of damaged tubules. Several lines of evidence indicate that tubular regeneration is mediated by polypeptide growth factors such as epidermal growth factor (EGF). Previous studies devoted to cisplatin nephrotoxicity have shown that this agent causes tubular cystic degeneration possibly related to an impairment of renal tissue repair. Thus, we examined on a comparative basis the time course of the regenerative response subsequent to tubular damage induced by tobramycin or cisplatin, particular attention being paid to renal EGF and its receptor. Female Sprague-Dawley rats (160-180 g body weight) were treated during 4 consecutive days with daily doses of 200 mg/kg tobramycin i.p. (BID) or 2 mg/kg cisplatin (once a day). Sham-treated rats were given 0.9% NaCl i.p. following the same protocol. Groups of experimental animals (n = 5-10) were terminated at increasing time intervals (1, 4, 7, 14, 21, 60 days) after cessation of treatment. One hour prior to sacrifice, each individual received i.p. 200 mg/kg 5-bromo-2'-deoxyuridine (BrdU) for the immunohistochemical demonstration of cell proliferation. Blood was collected at the time of sacrifice in order to assess glomerular filtration rate by measuring serum creatinine and BUN levels. Kidneys were analyzed with respect to total EGF determined by RIA in renal tissue homogenates, and soluble EGF was assayed in extracts prepared by centrifugation. Renal tissue was processed for the immunohistochemical detection of S-phase cells, of EGF, of EGF receptors, and of the intermediate filament vimentin, the latter being used as a marker of epithelium dedifferentiation. In absence of nephrotoxic alterations, EGF was immunolocalized in distal tubules, whereas EGF receptor immunostaining was seen in proximal tubules cells. Vimentin immunostaining was confined to glomeruli and blood vessels. Tobramycin and cisplatin caused acute tubular necrosis in proximal convoluted tubules and proximal straight tubules, respectively. Tissue damage was accompanied by renal dysfunction reflected by an elevation of serum creatinine and BUN levels. Tubular necrosis was followed by a proliferative response indicative of tubular regeneration. Regenerative hyperplasia was associated with a reduction of total immunoreactive EGF due to a decrease of tissue-bound proEGF. Tubules undergoing regenerative repair were characterized by a disappearance of EGF receptors and the presence of immunoreactive vimentin. In tobramycin-treated rats, renal dysfunction lasted for 4-7 days and was fully reversible, as indicated by the return of serum markers to normal values. [less ▲]

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See detailNescio als 'Animal Metaphysicum'
Yans, Baudoin ULg

in Spiegel der Letteren (1994), (1), 45-62

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See detailSequence-Analysis Of A 40-Kb Dna Fragment From Chromosome-X Of Saccharomyces-Cerevisiae
Vandenbol, Micheline ULg; Bolle, Pa.; Dion, C. et al

in Archives Internationales de Physiologie de Biochimie et de Biophysique (1994), 102(2),

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See detailThe structures and catalytic mechanisms of active-site serine beta-lactamases.
Lamotte, Josette ULg; Knox, J.; Kelly, J. A. et al

in Biotechnology & Genetic Engineering Reviews (1994), 12

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See detailCompte-rendu de Lucie Antoniol, Lire Ryle aujourd'hui. Aux sources de la philosophie analytique
Leclercq, Bruno ULg

in Revue Philosophique de Louvain (1994), 92

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See detailLes choix stratégiques actuels dans la prévention du processus diabétogène auto-immun
Geenen, Vincent ULg; Martens, Henri ULg; Kecha, Ouafae et al

in Médecine et Hygiène (1994), 52

Le diabète insulino-dépendant (DID) est de plus en plus admis comme résultant d'une rupture de la tolérance immunitaire vis-à-vis de la cellule ß pancréatique. La compréhension des mécanismes centraux et ... [more ▼]

Le diabète insulino-dépendant (DID) est de plus en plus admis comme résultant d'une rupture de la tolérance immunitaire vis-à-vis de la cellule ß pancréatique. La compréhension des mécanismes centraux et périphériques de la tolérance vis-à-vis de la cellule ß doit logiquement aboutir à une prévention non toxique et efficace du DID. Deux choix stratégiques sont proposés à l'heure actuelle. D'une part, la tolérance périphérique à l'insuline en tant que cible du processus auto-immun pourrait être restaurée via l'administration d'insuline à faibles doses par voie sous-cutanée ou orale. D'autre part, le facteur de croissance apparenté à l'insuline de type 2 (IGF2) pourrait réinduire la tolérance centrale de l'insuline et, secondairement, de la cellule ß insulino-sécrétrice. [less ▲]

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See detailLate Devonian-Early Carboniferous miospores from the Menen borehole, Namur Synclinorium, Belgium
Loboziak, S.; Streel, Maurice ULg; Dusar, M. et al

in Review of Palaeobotany and Palynology (1994), 80(1/2), 55-63

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See detailBon anniversaire. Compte rendu de la Xe Table Ronde ‘Informatique et Égyptologie, Bordeaux, 1994’
Winand, Jean ULg

in Revue. Informatique et Statistique dans les Sciences Humaines (1994), 41

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See detailA semiautomated test apparatus for studying partner preference behavior in the rat.
Bakker, Julie ULg; van Ophemert, J.; Eijskoot, F. et al

in Physiology & Behavior (1994), 56(3), 597-601

A semiautomated three-compartment box (3CB) for studying partner preference behavior of rats is described. This apparatus automatically records the rat's time spent in each compartment, as well as the ... [more ▼]

A semiautomated three-compartment box (3CB) for studying partner preference behavior of rats is described. This apparatus automatically records the rat's time spent in each compartment, as well as the locomotor activity (i.e., the number of visits an animal pays to each compartment). Software was developed for calculating partner preference scores. Behavioral testing in the semiautomated 3CB, which is a modification of an earlier version, is less time consuming and less laborious. Three 3CBs can be observed simultaneously by two trained observers, and the behavioral interactions of three experimental animals with the stimulus animals can be observed and scored by hand. The use of the new apparatus was validated by studying adult partner preference behavior of neonatally ATD-treated male rats. The collected data fully corroborate previous results, obtained in the earlier version of the 3CB, again revealing the behavioral bisexual nature of these ATD males. A new finding was the much higher locomotor activity of the ATD males compared to controls. [less ▲]

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See detailSuccessful removal of an intramedullary spinal paraganglioma from a dog
Poncelet, Luc; Snaps, Frédéric ULg; Jacobovitz, D. et al

in Journal of the American Animal Hospital Association (1994), 30(3), 213-216

An 11-year-old, mixed-breed dog suffering progressive asymmetric hind limb ataxia was diagnosed as having spinal cord compression at the L1 spinal level. An intramedullary, encapsulated tumor was ... [more ▼]

An 11-year-old, mixed-breed dog suffering progressive asymmetric hind limb ataxia was diagnosed as having spinal cord compression at the L1 spinal level. An intramedullary, encapsulated tumor was surgically removed. Tumor microscopic features, positive neuron-specific enolase (NSE) immunostaining, and Grimelius staining led to the diagnosis of paraganglioma. The dog was free from any neuroloaic signs 12 days after surgery. [less ▲]

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See detailMargaret Atwood's Good Bones
Delville, Michel ULg

in The Prose Poem: an international Journal (1994), 4

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See detailDetailed Study of a Molecule in a Molecule N-Acetyl-L-Tryptophanamide in a Active-Site Model of Alpha-Chymotrypsin
Dive, Georges ULg; Dehareng, Dominique ULg; Ghuysen, Jean-Marie ULg

in Journal of the American Chemical Society (1994), 116(6), 2548-2556

Six complexes between a model active site of alpha-chymotrypsin (261 atoms) and N-acetyl-L-tryptophanamide (33 atoms) were optimized at the semiempirical AM1 level. In one of these complexes, a water ... [more ▼]

Six complexes between a model active site of alpha-chymotrypsin (261 atoms) and N-acetyl-L-tryptophanamide (33 atoms) were optimized at the semiempirical AM1 level. In one of these complexes, a water molecule was included. A detailed study at the geometric and energetic levels is presented. The discussion deals with the nature of the interaction, the effect of the environment, the ligand deformation, the backbone relaxation, the water molecule freedom, and the comparison with the molecular mechanics results. [less ▲]

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See detailChromosomal localization of the callipyge gene in sheep (Ovis aries) using bovine DNA markers
Cockett, N. E.; Jackson, S. P.; Shay, T. D. et al

in Proceedings of the National Academy of Sciences of the United States of America (1994), 91

A mutation causing muscular hypertrophy, with associated leanness and improved feed efficiency, has been recently identified in domestic sheep (Ovis aries). Preliminary results indicate that an autosomal ... [more ▼]

A mutation causing muscular hypertrophy, with associated leanness and improved feed efficiency, has been recently identified in domestic sheep (Ovis aries). Preliminary results indicate that an autosomal dominant gene may be responsible for this economically advantageous trait. We have exploited the conservation in sequence and chromosomal location of DNA markers across Bovidae to map the corresponding callipyge locus to ovine chromosome 18 using a battery of bovine chromosome 21 markers. Chromosomal localization of the ovine callipyge locus is the first step toward positional cloning of the corresponding gene. [less ▲]

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See detailLe Paléolithique supérieur de Moldavie. Recherches récentes
Noiret, Pierre ULg; López Bayón, Ignacio

in Bulletin de l'Association scientifique liégeoise pour la Recherche archéologique (1994), XXI

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See detailEffects of immunization against somatostatin on growth performances and growth hormone - insulin-like growth factor I and insulin plasma levels in young bulls.
Renaville, Robert ULg; Sneyers, M.; Massart, Serge et al

in Zootecnica e Nutrizione Animale (1994), 20(4),

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See detailL'inventaire forestier wallon: un outil de developpement regional
Rondeux, Jacques ULg

in Wallonie (1994), 21(34), 3-8

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See detailCrise de presse. Le journalisme au péril du « reportage » (France, 1870-1890)
Durand, Pascal ULg

in Quaderni : la Revue de la Communication (1994), 24(automne), 123-152

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See detailTechniques moleculaires de detection et d'identification des agents phytopathogenes.
Lepoivre, Philippe ULg; Kummert, J.; Colinet, D. et al

in Cahiers Agricultures (1994), 3(4),

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See detailMolecular Analysis Of The Ycr-242 Gene Encoding The Putative Mitochondrial Asparaginyl-Transfer-Rna Synthetase From Saccharomyces-Cerevisiae
Landrieu, I.; Vandenbol, Micheline ULg; Portetelle, Daniel ULg et al

in Archives Internationales de Physiologie de Biochimie et de Biophysique (1994), 102(2),

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See detailHématome extradural cervical spontané de la femme enceinte
Mahieu, X.; Kridelka, Frédéric ULg; Pintiaux, Axelle ULg et al

in Journal de Gynécologie, Obstétrique et Biologie de la Reproduction (1994), 23(1), 99-102

Spontaneous spinal extradural hematomas are rare entities, especially during pregnancy. The authors report a case of a 26 years old women who developed as Brown-Sequard syndrome during pregnancy. The ... [more ▼]

Spontaneous spinal extradural hematomas are rare entities, especially during pregnancy. The authors report a case of a 26 years old women who developed as Brown-Sequard syndrome during pregnancy. The patient underwent first a caesarean and thereafter a prompt spinal surgical decompression. Complete sensory-motor recovery occurred after 48 hours. Differential diagnosis of cord compression, etiology of bleeding, conditions of recovery after surgery are discussed. [less ▲]

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See detailSynthesis and biodistribution of [5-131I]iodotropapride: a potential D2 dopamine receptor imaging agent.
Cantineau, Robert; Guillaume, Marcel; Damhaut, Philippe et al

in Nuclear Medicine & Biology (1994), 21(2), 255-62

[5-131I]Iodotropapride is a benzamidic compound which displays high affinity and selectivity for dopaminergic receptors. It was prepared from the corresponding brominated compound by a nucleophilic ... [more ▼]

[5-131I]Iodotropapride is a benzamidic compound which displays high affinity and selectivity for dopaminergic receptors. It was prepared from the corresponding brominated compound by a nucleophilic substitution with [131I]iodine (t1/2 = 8.02 days, E gamma = 364 keV) based on the use of Cu(I) as catalyst and high specific activity of [131I]NaI. After i.v. injection in rats the tracer crosses the blood-brain barrier (0.42 +/- 0.06% of injected dose in the total brain) and demonstrates a high affinity binding to the striatum. The striatum-to-cerebellum ratio increases with time and reaches values of 9 and 22 at 30 and 120 min after injection, respectively. This specific uptake in the striatum is saturable and can be blocked by pretreatment with different D2 antagonists. When labeled with 123I (t1/2 = 13 h, E1 = 159 keV), the corresponding [123I]iodotropapride may be useful for the investigation of the D2 dopamine receptors in humans with single photon emission computer tomography (SPECT). [less ▲]

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See detailThe use of acarbose in the prevention and treatment of hypoglycaemia.
Lefebvre, Pierre ULg; Scheen, André ULg

in European Journal of Clinical Investigation (1994), 24 Suppl 3

This paper reviews the use of acarbose in the prevention and treatment of hypoglycaemia. In diet- or sulfonylurea-treated patients, acarbose may reduce the incidence of late postprandial hypoglycaemia. In ... [more ▼]

This paper reviews the use of acarbose in the prevention and treatment of hypoglycaemia. In diet- or sulfonylurea-treated patients, acarbose may reduce the incidence of late postprandial hypoglycaemia. In insulin-treated patients, acarbose treatment usually requires reduction of the insulin dose; one study has shown that 100 mg acarbose at night significantly reduces the incidence of mid-evening and nocturnal hypoglycaemia. Several studies have suggested acarbose to be a useful adjunct to the management of reactive hypoglycaemia in the non-diabetic patients. Long-term prospective studies are still needed to document this last indication of acarbose or other alpha-glycosidase inhibitors. [less ▲]

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See detailCharacterization of a single prolactin (PRL) receptor in tilapia (Oreochromis niloticus) which binds both PRLI and PRLII
Auperin, B.; Rentier-Delrue, Françoise ULg; Martial, Joseph ULg et al

in Journal of Molecular Endocrinology (1994), 13(3), 241-51

In tilapia, there are two forms of prolactin (PRL) whose effects on sodium and chloride movements differ and depend on the living environment of the fish. To see whether different receptors or the same ... [more ▼]

In tilapia, there are two forms of prolactin (PRL) whose effects on sodium and chloride movements differ and depend on the living environment of the fish. To see whether different receptors or the same receptor mediates these different effects, we have characterized the specific binding of both forms of tilapia (ti)PRL in two osmoregulatory organs, the gill and kidney. Two recombinant tiPRLs were used for this analysis. The recombinant hormones had the same properties as the native hormones in a tilapia gill radioreceptor assay. Specific binding to gill and kidney membranes was increased by optimizing the quality of the tissue preparations (physiological state of fish, membrane preparation) and the incubation conditions (pH, salt concentrations, temperature, time). Under these optimized conditions, we detected only one class of high affinity PRL receptor in gill and kidney. Its binding affinity was higher for tiPRLI than for tiPRLII in both gill and kidney (for tiPRLI the respective affinity values were 2.9 and 2.3 x 10(10) per M, for tiPRLII they were 1.9 and 0.5 x 10(10) per M). In competition studies, tiPRLI was more potent, followed by tiPRLII and ovine (o)PRL. tiGH and oGH did not significantly displace either tiPRL. The receptor we have characterized thus recognizes quite specifically both tiPRLs. [less ▲]

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See detailPopulation dynamics of CD4+ T cells lacking Thy-1 in murine retrovirus-induced immunodeficiency syndrome (MAIDS).
Moutschen, Michel ULg; Colombi, S.; Deprez, Manuel ULg et al

in Scandinavian Journal of Immunology (1994), 39(2), 216-24

Increased numbers of CD4+ Thy-1- cells have been described in the spleen (SP) of mice with retrovirus-induced immunodeficiency (MAIDS). Since this phenotypic abnormality might have considerable functional ... [more ▼]

Increased numbers of CD4+ Thy-1- cells have been described in the spleen (SP) of mice with retrovirus-induced immunodeficiency (MAIDS). Since this phenotypic abnormality might have considerable functional importance, the expansion of the CD4+ Thy-1- subset in MAIDS was characterized further. CD4+ Thy-1- and Thy-1+ T-cells from infected mice expressed similar densities of CD3 and TCR alpha/beta. In contrast, the Thy-1- subset was uniformly CD44hi, even early in the disease when part of Thy-1+ cells were still CD44lo. The emergence of CD4+ Thy-1- cells occurred first in SP and lymph nodes and was observed later in thymus. The important fraction of CD4+ cells lacking Thy-1 normally present in Peyer's patches was only weakly modified. Despite the major expansion of the CD4+ Thy-1- phenotype, the proliferating fraction was not higher in this subset than in CD4+ Thy-1+ cells from infected mice. Persistence after hydroxyurea administration was identical in both subsets, indicating similar mean cell lifespans. Taken together, these results show that the major expansion of CD4+ Thy-1- T-cells in MAIDS is not ascribable solely to increased proliferation within this subset. Phenotypic analysis suggests that CD4+ Thy-1- cells result from the differentiation of Thy-1+ cells induced by activation signals related to retroviral infection. [less ▲]

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See detailRecension de l'ouvrage de Silvano Petrosino, "Jacques Derrida et la loi du possible"
Steinmetz, Rudy ULg

in Cahiers Internationaux de Symbolisme (1994)

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See detailAlienating Language and Darl's Narrative Consciousness in As I Lay Dying
Delville, Michel ULg

in The Southern Literary Journal (1994)

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See detailL’éthique et l’animal. Eléments pour un débat
Ansay, M.; Delaunois, A.; Gustin, Pascal ULg

in Annales de Médecine Vétérinaire (1994), 138

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See detailTaqI restriction fragment length polymorphism for bovine growth hormone in bovine breeds selected for milk and/or meat
Renaville, Robert ULg; Sneyers, Myriam; Falaki, Mohammed et al

in Journal of Animal Science (1994), 72(suppl 1), 316

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See detailFirst-principles calculations of dielectric and effective charge tensors in Barium Titanate
Ghosez, Philippe ULg; Gonze, X.; Michenaud, J. P.

in Ferroelectrics (1994), 153

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See detailDetection des molecules responsables de l'activite biocide des feuilles de Boscia senegalensis (Pers.) Lam ex Poir. par echantillonage d'espace de tete et spectrometrie de masse couplee a la chromatographie en phase gazeuse.
Lognay, Georges ULg; Marlier, M.; Seck, D. et al

in Bulletin des Recherches Agronomiques de Gembloux (1994), 29(1),

Des échantillons de feuilles de Boscia senegalensis (Prns.) I.ev ex Porn. ont été tnaintenus dans des conditions contrôlées sous un flux d'hélium, à l'intérieur d'une.platine de désorption thermique ... [more ▼]

Des échantillons de feuilles de Boscia senegalensis (Prns.) I.ev ex Porn. ont été tnaintenus dans des conditions contrôlées sous un flux d'hélium, à l'intérieur d'une.platine de désorption thermique directement connectée à un GC-MS. A côté du trans-2-hexénal, responsable de la note "verte" des feuilles, l'isothiocyanate de méthyle et le cyanure de méthyle (acétonitrile) ont été détectés. Ces deux produits se sont formés par dégradation enzymatique in situ d'un précurseur, la glucocapparine. Ils ont été caractérisés par leur spectre de masse. La libération de cyanure de méthyle à partir d'échantillons biologiques est expliquée. [less ▲]

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See detailPlasma IGF-I levels as predictive criteria of growth performances in cattle
Renaville, Robert ULg; Sneyers, Myriam; Massart, Serge et al

in Growth Regulation (1994), 4(suppl 1), 115

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See detailSynthesis and pharmacology of pyrid-3-yl sulfonylureas and thioureas as astrocytic Na+ 2Cl- K+ cotransporter inhibitors
Masereel, B.; Renard, P.; Pirotte, Bernard ULg et al

in European Journal of Medicinal Chemistry (1994), 29

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See detailEvaluation d’une expérience de rénovation de l’enseignement fondamental: Méthodologie de recherche
Piéron, Maurice; Cloes, Marc ULg; Delfosse, Catherine

in Revue de l'Education Physique (1994), 34(2-3), 117-120

Un projet pédagogique de l'envergure de celui qui fut mis en place dans l'enseignement fondamental de la Communauté française de Belgique exige que l'on considère les effets possibles sous de multiples ... [more ▼]

Un projet pédagogique de l'envergure de celui qui fut mis en place dans l'enseignement fondamental de la Communauté française de Belgique exige que l'on considère les effets possibles sous de multiples éclairages. Par les personnes auxquelles il s'adresse, par la diversité de ces effets et par l'organisation qu'il requiert, par la nécessité de mettre en évidence les relations de causalité, il a nécessité une méthodologie d'évaluation multidimensionnelle. ... [less ▲]

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See detailFIL2, an extracellular Leucine-Rich Repeat protein, is specifically expressed in Antirrhinum flowers.
Steinmayr, M.; Motte, Patrick ULg; Sommer, H. et al

in Plant Journal (The) (1994), 5(4), 459-67

The expression of the Antirrhinum gene FIL2 is affected in mutants of the homeotic transcription factor DEFICIENS. Northern and Western blot analyses showed that FIL2 in wild-type Antirrhinum flowers is ... [more ▼]

The expression of the Antirrhinum gene FIL2 is affected in mutants of the homeotic transcription factor DEFICIENS. Northern and Western blot analyses showed that FIL2 in wild-type Antirrhinum flowers is expressed weakly in the petals and more abundantly in the reproductive organs; the gene is active in the filaments and anthers of stamens, and in the stigma and transmitting tissue of the carpels. The FIL2 protein is glycosylated with high mannose type glycan chains and is located in the middle lamella of the extracellular matrix. The amino acid sequence contains 10 tandem repeats, the composition of which is similar to the Leucine-Rich Repeat (LRR) motif found in mammals, Drosophila and yeast. The possibility that FIL2 might be a component of a cellular signalling mechanism, involving LRR-mediated protein-protein interactions is discussed. [less ▲]

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See detailLe rêve du neurobiologiste
Gauthier, Jean-Marie ULg

in Revue Belge de Psychanalyse (1994), 25

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See detailGalectins: a family of animal beta-galactoside-binding lectins.
Barondes, S. H.; Castronovo, Vincenzo ULg; Cooper, D. N. et al

in Cell (1994), 76(4), 597-8

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See detailMultiple muscarinic receptor subtypes mediating pulmonary oedema in the rabbit.
Delaunois, Annie ULg; Gustin, Pascal ULg; Ansay, Michel ULg

in Pulmonary Pharmacology (1994), 7(3), 185-93

The effects of various muscarinic antagonists on acetylcholine (ACh)-induced pulmonary oedema were studied in isolated perfused rabbit lungs. ACh induced a dose-dependent increase in the capillary ... [more ▼]

The effects of various muscarinic antagonists on acetylcholine (ACh)-induced pulmonary oedema were studied in isolated perfused rabbit lungs. ACh induced a dose-dependent increase in the capillary filtration coefficient (Kf,c). This effect has been previously related to the activation of the capsaicin-sensitive nerve fibres and the release of substance P. Atropine, pirenzepine (M1-selective antagonist) and 4-DAMP (M3-selective antagonist) altered this response, producing a dose-dependent shift to the right of the ACh concentration-Kf,c response curve. By contrast, the M2-selective antagonist AFDX-116 shifted the ACh concentration-response curve to the left. Atropine, pirenzepine and 4-DAMP also significantly reduced the capsaicin-induced increase in the Kf,c, while AFDX-116 enhanced it. We conclude that multiple muscarinic receptor subtypes are present in the rabbit lung, located on the C-fibres, and are involved in the ACh-induced pulmonary oedema. M1 and M3 receptors seem to stimulate the release of neuropeptides from C-fibres, whereas M2 receptors have an inhibitory effect on these fibers. [less ▲]

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See detailEnzyme Immobilization in Nanoparticles produced by Inverse Microemulsion Polymerization
Daubresse, Catherine; Grandfils, Christian ULg; Jérôme, Robert ULg et al

in Journal of Colloid & Interface Science (1994), 168

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See detailGreffes de moelle dans les hémoglobinopathies
Beguin, Yves ULg

in Mini Acta (1994), 26

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See detailAnalyse de variables associées à l’action pédagogique dans un programme d’activités physiques quotidiennes au niveau élémentaire
Cloes, Marc ULg; Delfosse, Catherine; Ledent, Maryse et al

in Revue de l'Education Physique (1994), 34(2-3), 103-116

Dans notre société, où la notion d'effort physique régulier tend à disparaître, l'école devrait être investie d'une mission préventive. Elle devrait être à même de proposer aux enfants des occasions de ... [more ▼]

Dans notre société, où la notion d'effort physique régulier tend à disparaître, l'école devrait être investie d'une mission préventive. Elle devrait être à même de proposer aux enfants des occasions de pratique susceptibles de compenser les lacunes existantes. Les résultats de ces expériences soulignent fréquemment les effets favorables de l'activité quotidienne sur les aptitudes physiques et/ou motrices des enfants qui y participaient. ... [less ▲]

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See detailEstimation of effective and total erythropoiesis in myelodysplasia using serum transferrin receptor and erythropoietin concentrations, with automated reticulocyte parameters.
Bowen, D. T.; Culligan, D.; Beguin, Yves ULg et al

in Leukemia : Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K (1994), 8(1), 151-5

The erythroid abnormality in patients with myelodysplasia (MDS) is multifactorial, with ineffective erythropoiesis and poor in vitro progenitor response to erythropoietin (EPO). Serum EPO concentration is ... [more ▼]

The erythroid abnormality in patients with myelodysplasia (MDS) is multifactorial, with ineffective erythropoiesis and poor in vitro progenitor response to erythropoietin (EPO). Serum EPO concentration is variable among patients for a given haemoglobin concentration. We studied 19 non-transfusion-dependent patients with MDS, and 13 healthy elderly control subjects in an attempt to define the factors governing variability in serum EPO and to further characterise the anaemia of MDS. Serum EPO concentration was appropriate for the degree of anaemia in 15/19 MDS patients, and was positively related to mean cell volume (MCV), mean cell haemoglobin (MCH), and percentage highly fluorescent reticulocytes (% HFR), but not to absolute or percentage reticulocyte count. Although the observed/predicted ratio for serum transferrin receptor (TfR) concentration was low in 12 of 19 MDS subjects, no relationship to haemoglobin concentration, reticulocytes or serum EPO was seen. Serum TfR was positively correlated with WBC and platelet counts. Serum TfR was higher in patients with sideroblastic anaemia than refractory anaemia. Standardized in vivo p50 was positively correlated to red cell 2,3 diphosphoglycerate concentration, although this was not the only factor influencing the oxygen dissociation curve. We conclude that effective erythroid output responsive to endogenous EPO drive in MDS is positively related to MCV, MCH and % HFR. Serum TfR may not represent effective output as precisely as % HFR, but may be proportional to total marrow erythropoietic activity. [less ▲]

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See detailMutation analysis of coding sequences for type I procollagen in individuals with low bone density.
Spotila, L. D.; Colige, Alain ULg; Sereda, L. et al

in Journal of Bone and Mineral Research (1994), 9(6), 923-32

Mutations in one of the two genes encoding type I procollagen (COL1A1 and COL1A2) are frequently the cause of osteogenesis imperfecta (OI), a disorder characterized by brittle bones. Here we tested ... [more ▼]

Mutations in one of the two genes encoding type I procollagen (COL1A1 and COL1A2) are frequently the cause of osteogenesis imperfecta (OI), a disorder characterized by brittle bones. Here we tested whether patients with low bone density also have mutations in these genes. The 26 patients studied had no apparent metabolic bone disease, but most had a positive family history of osteopenia or osteoporosis. Although a diagnosis of OI was considered by the clinician in some cases, the clinical criteria for OI were not satisfied. Our strategy for mutation analysis consisted of PCR amplification of cDNA made to fibroblast mRNA using primers specific for the coding regions of COL1A1 and COL1A2. The PCR products were then sequenced directly with primers located within each PCR product. We found that 3 of 26 patients had mutations that altered the encoded amino acid. One mutation, at position alpha 2(I)-661 has been reported (Spotila et al. 1991 Proc Natl Acad Sci USA PNAS 88:5423). The other 2 patients, who were not related to each other, had a mutation that altered the proline codon at alpha 1(I)-27 to alanine. This mutation was not found in 81 normal individuals or in 37 additional osteopenic individuals. However, its effect on the biologic function of type I collagen, as well as its role in osteopenia, is uncertain. In addition to the two mutations, we found a polymorphism in codon alpha 2(I)-459. Although this polymorphism involved an amino acid substitution, it was present with equal frequency in the patient and the normal population. By analyzing this and previously reported neutral sequence variants in the COL1A2 gene, we determined that all patients expressed both alleles of the COL1A2 gene. The 12 patients who were heterozygous for a COL1A1 neutral sequence variant also expressed both alleles. Here we present all PCR primer and sequencing primer information. The results suggest that surveying a larger group of similarly selected individuals may reveal additional mutations in the COL1A1 or COL1A2 genes. [less ▲]

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See detailPathogenic Tracks in Fatigue Syndromes
Moutschen, Michel ULg; Triffaux, Jean-Marc ULg; Demonty, Jean ULg et al

in Acta Clinica Belgica (1994), 49(6), 274-89

This review analyses the recent literature devoted to two related fatigue syndromes: chronic fatigue syndrome (CFS) and acute onset postviral fatigue syndrome (PVFS). The articles are grouped into five ... [more ▼]

This review analyses the recent literature devoted to two related fatigue syndromes: chronic fatigue syndrome (CFS) and acute onset postviral fatigue syndrome (PVFS). The articles are grouped into five pathogenic tracks: infectious agents, immune system, skeletic muscle, hypothalamo-pituitary-adrenal (HPA) axis and psychiatric factors. Although a particular infectious agent is unlikely to be responsible for all CFS cases, evidence is shown that host-parasite relationships are modified in a large proportion of patients with chronic fatigue. Antibody titres against infectious agents are often elevated and replication of several viruses could be increased. Chronic activation of the immune system is also observed and could be due to the reactivation of persistent or latent infectious agents such as herpes viruses (i.e. HHV-6) or enteroviruses. It could also be favorised by an impaired negative feedback of the HPA axis on the immune system. A model is proposed where the abnormalities of the HPA axis are primary events and are mainly responsible for a chronic activation of the immune system which in turn induces an increased replication of several viruses under the control of cellular transcription factors. These replicating viruses together with cytokines such as TNF-alpha would secondarily induce functional disorders of muscle and several aspects of asthenia itself. [less ▲]

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See detailSurface pressure in SOS models
De Coninck, Joël; Limbourg, Sabine ULg; Newman, Charles

in Thin Solid Films (1994), 244

Microscopic models of the solid-on-solid type were considered to describe the surface pressure of monolayers and bilayers on top of another layer in two and three dimensions. The two interfaces, above and ... [more ▼]

Microscopic models of the solid-on-solid type were considered to describe the surface pressure of monolayers and bilayers on top of another layer in two and three dimensions. The two interfaces, above and below the film, were studied in simultaneous thermal equilibrium without imposing a fixed profile for the first fluid or solid. It is shown that the associated mean field approximation leads to an exact determination of the surface pressure isotherms revealing the possible existence of plateaux, typical of first-order phase transitions. [less ▲]

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See detailLe renouveau cosaque
Bachkatov, Nina ULg; Wilson, Andrew

in Transitions : Ex-Revue des Pays de L'est (1994), 35-1

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See detailEvaluation de la fonction pulmonaire du cheval par la technique scintigraphique
Votion, Dominique ULg; Art, Tatiana ULg; Lekeux, Pierre ULg

in Annales de Médecine Vétérinaire (1994), 138

Scintigraphy of the respiratory system, a technique used extensively in human medecine, provides a direct and non-invasive measure of both total and regional ventilation and perfusion of each lung. This ... [more ▼]

Scintigraphy of the respiratory system, a technique used extensively in human medecine, provides a direct and non-invasive measure of both total and regional ventilation and perfusion of each lung. This article remind you some nuclear notions and describes scintigraphical techniques for horses. The resuits of studies suggest that ventilation! perfusion scintigraphy provides valuable additionnai informations on regional lung function that are not obtainable from conventional investigations. The mucociliary clearance rates from the trachea can be determinated using scintigraphy and the differenttherapeutic drugs, which are claimed to increase mucokinesis, are successively presented. Methods of radiation protection in equine nuclear medecine are described [less ▲]

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See detailFouilles 1994 à l'Abri du Pape et à la Grotte du Bois Laiterie (Province de Namur)
Otte, Marcel ULg; Straus, Lawrence; Lacroix, Philippe et al

in Notae praehistoricae (1994), 14

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See detailA Comparison of Cabergoline and Bromocriptine in the Treatment of Hyperprolactinemic Amenorrhea
Webster, J.; Piscitelli, G.; Polli, A. et al

in New England Journal of Medicine [=NEJM] (1994), 331(14), 904-909

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See detailINTERNATIONAL-CONFERENCE ON BARBUS - PRESENT AND FUTURE - FOREWORD
BERREBI, P.; Poncin, Pascal ULg

in Bulletin Francais De La Peche Et De La Pisciculture (1994), (334), 167-168

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See detailFlow modeling in an underground gasifier at great depth by the Boundary-Element Method
MATHY, B.; PIRLOT, Pierre; Pirard, Jean-Paul ULg et al

in In Situ (1994), 18(4), 399-418

In order to simulate the cavity growth of an underground gasifier in thin seams at great depth, Wilks1 has developed an original model that solves the continuity equation in the horizontal plane with the ... [more ▼]

In order to simulate the cavity growth of an underground gasifier in thin seams at great depth, Wilks1 has developed an original model that solves the continuity equation in the horizontal plane with the hypothesis of radial fluid flow around the injection well. In the model presented here, the continuity equation in the horizontal plane has been taken into account, removing the limiting assumption on flow (radial direction) assumed by Wilks. The simultaneous solution of the continuity equation and the Darcy law has been carried out using the Boundary Element Method (BEM); this method is particularly suitable for solving problems where boundary conditions are of prime importance. The model enables the influences of the permeability of the medium and gasifier geometry to be demonstrated. [less ▲]

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See detailChemically selected subclones of the CEM cell line demonstrate resistance to HIV-1 infection resulting from a selective loss of NF-kappa B DNA binding proteins.
Qian, J.; Bours, Vincent ULg; Manischewitz, J. et al

in Journal of Immunology (1994), 152(8), 4183-91

To delineate cellular genes that are required for optimal HIV-1 infection, CEM cells were subjected to treatment with the chemical mutagen ethylmethanesulfonate (EMS) and subclones were selected based on ... [more ▼]

To delineate cellular genes that are required for optimal HIV-1 infection, CEM cells were subjected to treatment with the chemical mutagen ethylmethanesulfonate (EMS) and subclones were selected based on their increased resistance to HIV-1 infection and reduced syncytium formation, despite relatively normal CD4 expression (20,000 to 25,000 receptors/cell). Two subclones with this phenotype demonstrated a diminished capacity of HIV-1 long terminal repeat-chloramphenicol acetyl transferase expression either after treatment with the protein kinase C activator PMA, or through Tat-mediated transactivation. In this study, we show that the cellular levels of the NF-kappa B DNA binding proteins (but not AP1 or SP1) are markedly reduced in these cell mutants both at the mRNA and protein levels, resulting in reduced nuclear localization of p50/p65 after PMA induction or treatment with the lymphokine TNF-alpha. Transient reconstitution with a plasmid expressing p50 resulted in partial recovery of PMA-inducible LTR-chloramphenicol acetyl transferase expression. These data suggest that, at least in the CEM T cell line, a selective reduction in the NF-kappa B DNA binding proteins is sufficient to curtail HIV-1 infection. [less ▲]

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See detailChloride and Inorganic Phosphate Modulate Binding of Oxygen to Bovine Red Blood Cells
Gustin, Pascal ULg; Detry, Benoît; Cao, M. L. et al

in Journal of Applied Physiology (Bethesda, Md. : 1985) (1994), 77(1), 202-208

The influence of Pi and Cl on the equilibrium of oxygen binding to bovine red blood cells was assessed by plotting the whole blood oxygen dissociation curve measured under standard conditions with and ... [more ▼]

The influence of Pi and Cl on the equilibrium of oxygen binding to bovine red blood cells was assessed by plotting the whole blood oxygen dissociation curve measured under standard conditions with and without added KCl and K2HPO4. Both salts shifted the oxygen dissociation curve to the right. This effect was more marked at the highest saturation levels. At a given saturation level, the anion-induced shift was linearly related to the concentration of salt added to the blood. Cl had a greater effect than Pi. The relationship between changes in Po2 at 50% hemoglobin saturation (in Torr) and concentrations of ions added (in mmol/l) was equal to 0.0515[Cl] + 0.0302[Pi] (r2 = 0.94; P < 0.001). These changes were not due to the hyperosmolality induced by salt addition, since sucrose added in place of salts was without effect on the measured parameters. The oxygen exchange fraction expressed as percentage of saturation, i.e., the difference in hemoglobin saturation when Po2 decreases from 130 to 40 Torr, was linearly correlated to added anion concentration (in mmol/l) (= 0.102[Cl] + 0.059[Pi] (r2 = 0.95; P < 0.001)). No significant interaction between the anions was observed; their effects were purely additive. This original mechanism of controlling the oxygen affinity of bovine blood may have clinical relevance: Cl and Pi could be used to increase oxygen transport efficiency in hypoxic animals [less ▲]

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See detailLifetime Measurements for the 4p2P° and 5p2P° Levels and calculation of Transition Probabilities in Na I
Lowe, R. M.; Biémont, Emile ULg

in Journal of Physics : B Atomic Molecular & Optical Physics (1994), 27

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See detailDistribution and Regulation of Estrogen-2-Hydroxylase in the Quail Brain
Balthazart, Jacques ULg; Stoop, R.; Foidart, Agnès ULg et al

in Brain Research Bulletin (1994), 35(4), 339-45

The anatomical distribution and endocrine regulation of the estrogen-2-hydroxylase activity were investigated in the brain of adult male and female Japanese quail. Significant levels of enzymatic activity ... [more ▼]

The anatomical distribution and endocrine regulation of the estrogen-2-hydroxylase activity were investigated in the brain of adult male and female Japanese quail. Significant levels of enzymatic activity were detected in all brain regions that were studied, but the highest levels were observed in preoptic and hypothalamic brain nuclei that are known to contain high levels of aromatase activity. These data are consistent with previous results suggesting that the placental aromatase is also responsible for the estrogen-2-hydroxylase activity. However, there is a marked sex difference and a control by T of aromatase activity in the quail brain, and no such difference in 2-hydroxylase activity could generally be detected except in the VMN. Further studies will be needed to know whether the previously published conclusions concerning the human placenta also apply to the brain. The present data are consistent with the idea that estrogens formed locally in the brain by testosterone aromatization could affect reproduction by interfering with the catecholaminergic transmission after being metabolized into catechol-estrogens. [less ▲]

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See detailLa prothèse pénienne dans le traitement de l'impuissance: La décision du patient
Kempeneers, Philippe ULg; Andrianne, R.; Mormont, Christian ULg

in Cahiers de Sexologie Clinique (1994), 20(124), 31-36

In the population who look advice from our interdisciplinary team, penile prosthesis is estimated been indicated in about 13% of the cases. Among these 13% of patients to whom a penile implant was ... [more ▼]

In the population who look advice from our interdisciplinary team, penile prosthesis is estimated been indicated in about 13% of the cases. Among these 13% of patients to whom a penile implant was proposed, only 32% agreed to undergo the operation. From this statement, we wondered why some men require penile implantation and other ones resign. A follow-up survey allowed to compare the experience of 19 implants recipients to the experience of 17 patients who have refused this solution. The cost of the device appears being a very determinant argument in the decision to reject penile implantation. Our study fails to distinguls clearly the two groups of subjects on the basis of another motivation criterion. [less ▲]

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See detailPuissance maximale aérobie d’enfants en âge d’école primaire participant ou non à une leçon quotidienne d’activités physiques
Ledent, Maryse; Delfosse, Catherine; Cloes, Marc ULg et al

in Revue de l'Education Physique (1994), 34(2-3), 69-75

Plusieurs études indiquent que, chez l'adulte, il existe une relation significative entre la pratique d'activités physiques et sportives et la diminution des facteurs de risque, surtout cardiovasculaire ... [more ▼]

Plusieurs études indiquent que, chez l'adulte, il existe une relation significative entre la pratique d'activités physiques et sportives et la diminution des facteurs de risque, surtout cardiovasculaire. En particulier, l'endurance qui découle d'une pratique régulière d'activités modérés à intenses de répercute sur la condition du système cardiovasculaire et réduit significativement les risques de troubles cardiaques. ... [less ▲]

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See detailQuantitative Assessment of Aerial Ammonia Toxicity to the Nasal Mucosa by Use of the Nasal Lavage Method in Pigs
Urbain, B.; Gustin, Pascal ULg; Prouvost, J. F. et al

in American Journal of Veterinary Research (1994), 55(9), 1335-1340

Effects of atmospheric ammonia (NH3) on the nasal mucosa and somatic growth were investigated in pigs exposed to 4 NH3 concentrations (0; 25; 50; and 100 ppm) for 6 days in a specifically designed air ... [more ▼]

Effects of atmospheric ammonia (NH3) on the nasal mucosa and somatic growth were investigated in pigs exposed to 4 NH3 concentrations (0; 25; 50; and 100 ppm) for 6 days in a specifically designed air-pollutant exposure chamber. Nasal lavage (NAL) was applied to quantify the ammonia-induced inflammatory response by measuring the number of neutrophils and the albumin (porcine serum albumin) concentration in the NAL liquid. In control pigs, these variables remained unchanged throughout the exposure period. In all other groups, an important ammonia concentration-related increase was recorded. The equation of the linear regression line established between the mean values of the number of neutrophils (x 10(3)) per milliliter of NAL liquid (y) recorded at the end of the exposure period and the ammonia concentrations (ppm) was: y = 69.7 + 3.3 [NH3] (r = 0.979; P < 0.020). The increase in the neutrophil count was significant (P < 0.05) at concentrations as low as 25 ppm. For albumin concentration nanograms per milliliter, the corresponding equation was: y = 574 + 14.3 [NH3] (r = 0.953; P < 0.045). However, the first significant change (P < 0.05) in this variable was only obtained for the higher concentration (100 ppm). In exposed pigs, a concentration-related depression of somatic growth was observed. The equation of the regression line plotted relating the individual values of the changes in body weight gain recorded over the exposure period expressed as percentage of the initial body weight (y) and the ammonia concentration was: y = 3.507-0.203 [NH3] + 0.001 [NH3]2 (r = 0.55; P < 0.010).(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailcompte rendu de : N. Giovè Marchioli, Alle origini delle abbreviature latine. Una prima ricognizione (I secolo a.C. - IV secolo d.C.)
Rochette, Bruno ULg

in Chronique d'Egypte : Bulletin Périodique de la Fondation Egyptologique Reine Elisabeth (1994)

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See detailAsthme et bêta2-agonistes de longue durée d'action
Bury, Thierry ULg; Kayambe, JM; Radermecker, Maurice ULg

in Médecine et Hygiène (1994), 52

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See detailL'anemie ferriprive de la grossesse.
Fraipont, V.; Beguin, Yves ULg; Fillet, Georges ULg

in Revue Médicale de Liège (1994), 49(8), 436-45

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See detailEffects of Atmospheric Ammonia on Pulmonary Hemodynamics and Vascular Permeability in Pigs: Interaction with Endotoxins
Gustin, Pascal ULg; Urbain, B.; Prouvost, J. F. et al

in Toxicology and Applied Pharmacology (1994), 125(1), 17-26

The influence of atmospheric ammonia on the somatic growth, the plasma cortisol and ammonia concentrations, and cell blood counts was investigated in pigs exposed to four concentrations (0, 25, 50, and ... [more ▼]

The influence of atmospheric ammonia on the somatic growth, the plasma cortisol and ammonia concentrations, and cell blood counts was investigated in pigs exposed to four concentrations (0, 25, 50, and 100 ppm) for 6 days in a specifically designed air-pollutants exposure chamber. The effects of this gas on pulmonary vascular hemodynamics and permeability and on the endotoxin-induced vascular response were also assessed using an isolated perfused lung preparation. The total pulmonary blood flow resistance (Rt) was partitioned into four components: arterial (Ra), pre-(Ra′) and post-(Rv′) capillary and venous (Rv). The capillary filtration coefficient (Kf,c) was evaluated by using a gravimetric technique. None of the concentrations of ammonia significantly modified the plasma cortisol and ammonia concentrations or the differential leukocyte percentages and total white blood cell count, suggesting an absence of stress related to ammonia. In exposed animals, lethargy and a concentration-related depression of the somatic growth were observed. The equation of the regression line plotted relating the mean values of the changes in body weight gain recorded over the exposure period expressed as percentages of the initial body weight (y) and ammonia concentrations (x) was: y = 3.204 − 0.177x + 0.001x2(r = 0.99; p≤0.013). Endotoxin infused in the perfusion liquid of lungs from unexposed animals for 180 min induced a significant 208% increase in Rt (p < 0.001) which can be ascribed to a 338 and 180% increase in Ra′ and Rv′, respectively. Endotoxin infusion also induced a 62% (p ≤ 0.001) increase in the Kf,c. Exposure of pigs to ammonia at any concentration did not modify the baseline values of any hemodynamic or permeability parameters. However, the hemodynamic response to endotoxins in lungs from pigs exposed to 100 ppm was significantly altered. The increase in Rt, Ra′, and Rv′ observed in unexposed pigs was completely abolished as shown by the limited changes in Rt (+34.9%). An intermediate reaction (+131.7%) was obtained in pigs exposed to 50 ppm. This inhibiting effect of ammonia was closely correlated with gas concentration by a linear regression (r = 0.99; p ≤ 0.037). The changes in the Kf,c recorded in the control group were not modified by exposure to ammonia. It was concluded that exposure of pigs to aerial ammonia concentrations from 0 to 100 ppm for 6 days has no direct effect on the pulmonary microvascular hemodynamics and permeability and induces no stress response. A marked depressive effect on the somatic growth is observed at concentrations greater than 25 ppm. Concentrations greater than 50 ppm can modulate the pulmonary vascular response to endotoxins [less ▲]

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See detailTamoxifen restores the E-cadherin function in human breast cancer MCF-7/6 cells and suppresses their invasive phenotype
Bracke, M. E.; Charlier, Corinne ULg; Bruyneel, E. A. et al

in Cancer Research (1994), 54

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See detailBioconversion of vanillin into vanillic acid by Pseudomonas fluorescens strain BTP9
Bare, Ghislain; Delaunois, Valérie; Rikir, Rafaelle et al

in Applied Biochemistry and Biotechnology (1994), 45/46

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See detailDNase I hypersensitive sites far upstream of the rat tryptophan oxygenase gene direct developmentally regulated transcription in livers of transgenic mice.
Kaltschmidt, Christian; Muller, Marc ULg; Brem, Gottfried et al

in Mechanisms of Development (1994), 45(3), 203-10

Expression of the gene coding for tryptophan oxygenase (TO) is switched on in rat liver about two weeks after birth. We identified two clusters of DNaseI hypersensitive (HS) sites in the TO gene upstream ... [more ▼]

Expression of the gene coding for tryptophan oxygenase (TO) is switched on in rat liver about two weeks after birth. We identified two clusters of DNaseI hypersensitive (HS) sites in the TO gene upstream region; one near the promoter, the other at a distant upstream location (-8.5 kb). Hypersensitivity of upstream sites was present in adult and in 7 day old rat liver, but absent in kidney. To investigate their role in transcriptional regulation, a reporter gene controlled by both HS site regions was used to generate transgenic mice. In these animals the transgene followed the cell specific and developmental regulation of the endogenous gene: inactive after birth and active in adult liver. Transgenes containing only the promoter proximal HS site were non-functional. [less ▲]

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See detailIntensities of the doublet-quadruplet intersystem transitions in C II and N III
Biémont, Emile ULg; Delahaye, F.; Zeippen, C. J.

in Journal of Physics : B Atomic Molecular & Optical Physics (1994), 27

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See detailEffects of immunization against somatostatin on growth performances and growth hormone, insulin-like growth factor I and insulin plasma levels in young animals
Renaville, Robert ULg; Fernadez, J. J.; Sneyers, Myriam et al

in Zootecnica e Nutrizione Animale (1994), 20

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See detailRelationships between metabolic clearance rate of insulin and body mass index in a female population ranging from anorexia nervosa to severe obesity.
Castillo, M. J.; Scheen, André ULg; Jandrain, Bernard ULg et al

in International Journal of Obesity & Related Metabolic Disorders (1994), 18(1), 47-53

Changes in the metabolic clearance rate of insulin (MCRI) have been described in several pathological conditions. Conflicting data suggest that they may be related to either body mass index (BMI) or body ... [more ▼]

Changes in the metabolic clearance rate of insulin (MCRI) have been described in several pathological conditions. Conflicting data suggest that they may be related to either body mass index (BMI) or body composition. This study aimed to investigate the relationship between the MCRI and BMI in an exclusively female population showing a wide range of BMI. For that purpose, hyperinsulinemic normoglycemic glucose clamps were performed in nine anorectic subjects (BMI: 14.5 +/- 0.8 kg/m2), 11 healthy volunteers (BMI: 20.3 +/- 0.5 kg/m2) and 12 obese patients (BMI: 33.0 +/- 0.9 kg/m2). To exclude any influence of the menstrual cycle on the MCRI, five healthy women underwent three tests at different days of the menstrual cycle: menstruation period, late follicular pre-ovulatory phase and luteal phase, in random order. The MCRI, which was quite reproducible in a given subject, was not significantly modified by the menstrual cycle. In the premenopausal female population studied, the mean (+/- s.e.m.) MCRI normalized for body weight (kg) were 35.4 +/- 3.4, 24.7 +/- 1.8 and 14.0 +/- 1.0 ml/kg/min (P < 0.01) for anorectic subjects, healthy volunteers and obese patients, respectively. These differences were maintained when the MCRI was normalized according to corporeal surface (m2) (1018 +/- 75, 859 +/- 67, 638 +/- 40 ml/m2/min, P < 0.01) or lean body mass (kg) (37.1 +/- 3.4, 32.6 +/- 2.7 and 24.1 +/- 0.5 ml/kgLBM/min, P < 0.01), but disappeared when MCRI was expressed per kg of ideal body weight (24.6 +/- 2.2, 24.6 +/- 2.1 and 22.4 +/- 1.4 ml/kgIBW/min, n.s.).(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailSynthesis, purification and kinetic properties of fluorescein-labelled penicillins
Lakaye, Bernard ULg; Damblon, Christian ULg; Jamin, Marc et al

in Biochemical Journal (1994), 300

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See detailEvolution of shoot density of the Posidonia seagrass bed of Calvi Bay (Corsica)
Soullard, Mady; Bourge, Isabelle; Fogel, Julie et al

in Vie et Milieu (1994), 44

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See detailAcute biochemical variations induced by four different calcium salts in healthy male volunteers
Reginster, Jean-Yves ULg; Denis, D; Bartsch, V et al

in Equilibre (1994), 19

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See detailControl of drug-resistant epilepsy after head injury with intravenous nimodipine.
HANS, Pol ULg; Triffaux, M.; BONHOMME, Vincent ULg et al

in Acta Anaesthesiologica Belgica (1994), 45(4), 175-8

The present report describes a young child who developed generalized epileptic seizures in the course of severe head injury. The start of epileptic seizures was associated with the occurrence of acute ... [more ▼]

The present report describes a young child who developed generalized epileptic seizures in the course of severe head injury. The start of epileptic seizures was associated with the occurrence of acute hyponatremia and hypoosmolality due to excessive Desmopressine administration. The seizures resistant to conventional therapy resolved completely with intravenous nimodipine infusion. [less ▲]

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See detailPump up the volume! Mogelijkheid en onmogelijkheid van het manifest in postmoderne tijden
Spinoy, Erik ULg

in De Zingende Zaag (1994), (24-25), 102-123

This article reflects on the fact that manifests are a predominantly modernist genre. In postmodern times, manifests can only reappear as simulations or parodies.

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See detailGender and diagnostic performance of the growth hormone response to clonidine for major depression : A large scale multicenter study
Schittecatte, Michel; Charles, Gerard; Machowski, R. et al

in American Journal of Psychiatry (The) (1994)

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See detailA propos d'un cas de kératite a Mycobacterium chelonae
Duchesne, Bernard ULg; Marechal-Courtois; Melin, Pierrette ULg

in Bulletin de la Société Belge d'Ophtalmologie (1994), 254

The authors presents one case of primitive corneal mycobacterium keratitis after corneal graft. This rare form of keratitis is analysed in the field of mycobacterial infections who's nowadays more ... [more ▼]

The authors presents one case of primitive corneal mycobacterium keratitis after corneal graft. This rare form of keratitis is analysed in the field of mycobacterial infections who's nowadays more developed in our industrialised countries. The description of the case point out the multiresistance of this mycobacterium and describe the different treatments. [less ▲]

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See detailAcute myocardial infarction in a young female migraineur: sumatriptan suspected, but found not guilty.
Schoenen, Jean ULg; Delree, P.; Moonen, Gustave ULg

in Cephalalgia : An International Journal of Headache (1994), 14(4), 305

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See detailEffet différentiel d'un didacticiel d'apprentissage de l'orthographe selon le mode d'utilisation de l'ordinateur
Crahay, Marcel ULg; Huberman, M.

in Education et Recherche (1994), 16(3), 300-326

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See detailPossessoire, pétitoire, référé, plainte, bornage et revendication ...Quand tout s'emmêle!
Lecocq, Pascale ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1994)

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See detailAttitude vis-à-vis de l’école chez des enfants en âge d’école primaire, participant ou non à un programme scolaire d’activités physiques quotidiennes
Delfosse, Catherine; Cloes, Marc ULg; Ledent, Maryse et al

in Revue de l'Education Physique (1994), 34(2-3), 77-88

Les questions relatives aux attitudes et à leur modification font très largement partie des préoccupations relevées dans les environnements éducatifs considérés habituellement: l'école et le monde des ... [more ▼]

Les questions relatives aux attitudes et à leur modification font très largement partie des préoccupations relevées dans les environnements éducatifs considérés habituellement: l'école et le monde des loisirs actifs. A l'école, les objectifs d'un programme d'activités physiques et sportives sont évidemment de développer des attitudes favorables à l'égard de l'activité physique régulière. ... [less ▲]

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See detailCompte rendu de Recherche de l'Ironie et ironie de la "Recherche", de P. Schoentjes
Defays, Jean-Marc ULg

in Revue Belge de Philologie et d'Histoire (1994), 72(3), 716-718

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See detailVariations of lyoluminescence with commercial origin of the dosimeters
Galand, Eric; Niezette, Jacques; Vanderschuren, Jacques et al

in Radiation Physics and Chemistry (1994), 43

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See detailDimensionless critical shear stress evaluation from flume experiments using different gravel beds
Petit, François ULg

in Earth Surface Processes & Landforms (1994)

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