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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 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 detailTnf-Alpha Is Involved in the Mechanism of Murine Thymic Lymphoma Prevention by Bone Marrow Grafting
Humblet, Chantal ULg; Deman, J.; Rongy, A. M. et al

in Advances in Experimental Medicine and Biology (1994), 355

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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 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 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 detailSWIMMING PUPPY SYNDROME IN A LITTER OF BOUVIER-DES-FLANDRES
Poncelet, Luc; Gilbert, S.; Jauniaux, Thierry ULg et al

in Annales de Médecine Vétérinaire (1994), 138(2), 121-123

This paper describes the clinical, serologic, electrophysiologic and pathologic findings in three Bouvier des Flandres puppies exhibiting the swiming puppy syndrome. The puppies had no antibodies against ... [more ▼]

This paper describes the clinical, serologic, electrophysiologic and pathologic findings in three Bouvier des Flandres puppies exhibiting the swiming puppy syndrome. The puppies had no antibodies against distemper virus, T. gondii and N. caninum. A myopathy was suspected because spontaneous activities were disclosed in all muscle groups and muscles enzymes were elevated. However the pathologic findings were unable to confirm this hypothesis. [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 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 detailMalignant Hyperthermia and Severe Hypoglycemia after Reexposure to Halothane
Bichel, T.; Canivet, Jean-Luc ULg; Damas, Pierre ULg et al

in Acta Anaesthesiologica Belgica (1994), 45(1), 23-7

A four year child presented with an episode of malignant hyperthermia induced by reexposure to halothane. The episode was associated with early onset of a severe hypoglycemia and liver enzymatic ... [more ▼]

A four year child presented with an episode of malignant hyperthermia induced by reexposure to halothane. The episode was associated with early onset of a severe hypoglycemia and liver enzymatic perturbances. Etiology of these perturbances is hard to state precisely in this clinical context, but a hepatic toxicity of halothane and/or by dantrolene is considered. [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 detailLe financement au niveau communal
Jurion, Bernard ULg

in Mouvement communal, Union des Villes et des Communes de Belgique (1994)

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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 detailDifferential Expression of the 67-Kd Laminin Receptor and 31-Kd Human Laminin-Binding Protein in Human Ovarian Carcinomas
van den Brule, F. A.; Berchuck, A.; Bast, R. C. et al

in European Journal of Cancer (1994), 30A(8), 1096-9

The expression of the 67-kD laminin receptor (67LR) and the 31-kD human laminin-binding protein (HLBP31), two proteins involved in cancer cell laminin interaction, was evaluated on 30 ovarian cancer ... [more ▼]

The expression of the 67-kD laminin receptor (67LR) and the 31-kD human laminin-binding protein (HLBP31), two proteins involved in cancer cell laminin interaction, was evaluated on 30 ovarian cancer specimens. Expression of the 67LR was increased (up to 2.5-fold, in 87% of the patients), while HLBP31 expression was downregulated in cancer cells compared with the normal tissue, as detected by northern blotting and immunohistochemistry. The immunohistochemical study demonstrated that the 67LR was significantly overexpressed (P < 0.05) in the group of patients whose cytoreductive surgery was suboptimal, and those with poor clinical outcome. No correlation was observed between HLBP31 expression and clinicopathological features. Increased expression of the 67LR appears to correlate with the invasive phenotype of ovarian cancer cells and suggests a role of the latter in ovarian cancer invasion. [less ▲]

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See detailCrystal structure of cholera toxin B-pentamer bound to receptor GM1 pentasaccharide
Merritt, E. A.; Sarfaty, S.; van den Akker, F. et al

in Protein Science : A Publication of the Protein Society (1994), 3(2), 166-75

Cholera toxin (CT) is an AB5 hexameric protein responsible for the symptoms produced by Vibrio cholerae infection. In the first step of cell intoxication, the B-pentamer of the toxin binds specifically to ... [more ▼]

Cholera toxin (CT) is an AB5 hexameric protein responsible for the symptoms produced by Vibrio cholerae infection. In the first step of cell intoxication, the B-pentamer of the toxin binds specifically to the branched pentasaccharide moiety of ganglioside GM1 on the surface of target human intestinal epithelial cells. We present here the crystal structure of the cholera toxin B-pentamer complexed with the GM1 pentasaccharide. Each receptor binding site on the toxin is found to lie primarily within a single B-subunit, with a single solvent-mediated hydrogen bond from residue Gly 33 of an adjacent subunit. The large majority of interactions between the receptor and the toxin involve the 2 terminal sugars of GM1, galactose and sialic acid, with a smaller contribution from the N-acetyl galactosamine residue. The binding of GM1 to cholera toxin thus resembles a 2-fingered grip: the Gal(beta 1-3)GalNAc moiety representing the "forefinger" and the sialic acid representing the "thumb." The residues forming the binding site are conserved between cholera toxin and the homologous heat-labile enterotoxin from Escherichia coli, with the sole exception of His 13. Some reported differences in the binding affinity of the 2 toxins for gangliosides other than GM1 may be rationalized by sequence differences at this residue. The CTB5:GM1 pentasaccharide complex described here provides a detailed view of a protein:ganglioside specific binding interaction, and as such is of interest not only for understanding cholera pathogenesis and for the design of drugs and development of vaccines but also for modeling other protein:ganglioside interactions such as those involved in GM1-mediated signal transduction. [less ▲]

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See detailSymbolic Verification with Periodic Sets
Boigelot, Bernard ULg; Wolper, Pierre ULg

in Lecture Notes in Computer Science (1994), 818

Symbolic approaches attack the state explosion problem by introducing implicit representations that allow the simultaneous manipulation of large sets of states. The most commonly used representation in ... [more ▼]

Symbolic approaches attack the state explosion problem by introducing implicit representations that allow the simultaneous manipulation of large sets of states. The most commonly used representation in this context is the Binary Decision Diagram (BDD). This paper takes the point of view that other structures than BDD's can be useful for representing sets of values, and that combining implicit and explicit representations can be fruitful. It introduces a representation of complex periodic sets of integer values, shows how this representation can be manipulated, and describes its application to the state-space exploration of protocols. Preliminary experimental results indicate that the method can dramatically reduce the resources required for state-space exploration. [less ▲]

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See detailDe réels progrès ont-ils été faits dans le traitement de l'ostéoporose ?
Reginster, Jean-Yves ULg; DEROISY, Rita ULg; Franchimont, P

in Les Nouvelles de Rhumatologie (1994), 4

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See detailOpportunities for fine gold recovery from a copper flotation circuit using Knelson concentrator
Patchejieff, B.; Gaydardzhiev, Stoyan ULg; Lazarov, D.

in Minerals Engineering (1994), 7(2/3), 405-408

Experiments aimed at determination of the character of the gold observed in a copper ore processed by flotation, and also to evaluate the possibilities of improvement of the total gold recovery have been ... [more ▼]

Experiments aimed at determination of the character of the gold observed in a copper ore processed by flotation, and also to evaluate the possibilities of improvement of the total gold recovery have been carried out. The gravity equipment used was a 7.5" Knelson screen hydrostatic concentrator, reported of being capable of treatment and upgrading of up to 1000 times raw material with about 30% hypothetical concentration of heavy flotation sized particles. The gold-to-sulfides ratio obtained during the various runs was chosen as a general criterion for the type of gold presented (free or locked) and for the gravity approach feasibility. [less ▲]

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See detailModèles de cubage pour essences multi-tiges : application à des plantations d'acacia
Lejeune, Philippe ULg; Rondeux, Jacques ULg

in Cahiers Agricultures (1994), 3(3), 189-194

Tree-volume equations were devised to estimate the volume of wood (excluding bark) of Acacia auriculiformis A. Cunn ex Benth fuelwood plantations in Zaïre. The tables give the total volume of stems and ... [more ▼]

Tree-volume equations were devised to estimate the volume of wood (excluding bark) of Acacia auriculiformis A. Cunn ex Benth fuelwood plantations in Zaïre. The tables give the total volume of stems and branches to an upper girth limit of 9 cm, together with the volumes according to the following classes of girth : 9-14, 15-44 and over 45 cm. Because this species has a high proportion of multiple-stem trees (which begin forking below the breast-height level), girth at 1.30 m is a relatively meaningless concept. Taking the extent of this variable in tree volume estimation into account, various expressions of girth were investigated. Instead of considering each stem girth individually, a "standardised" girth at 1.30 m (from ground level) was adopted. For any given tree, this corresponds to the quadratic sum of all girths measured at 1,30 m. [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 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 detailLa gynécologie dans les papyrus grecs de médecine
Marganne, Marie-Hélène ULg

in Acta Belgica Historiae Medicinae (1994), 7(4), 207-217

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See detailEtude des relations entre les microstructures obtenues par vieillissement isotherme et le comportement mécanique (fatigue, résilience) dans des alliages Zn-Al et Zn-Al-Cu
Lecomte-Beckers, Jacqueline ULg; Terziev, L.; Wegria, J.

in Revue de Métallurgie [=Revue de Métallurgie. Cahiers d'Informations Techniques] (1994), 91[5]

L’article présenté établit une corrélation entre le comportement mécanique (fluage, résilience) et les microstructures qui apparaissent au cours d’un traitement thermique isotherme (100 ou 250 °C) dans ... [more ▼]

L’article présenté établit une corrélation entre le comportement mécanique (fluage, résilience) et les microstructures qui apparaissent au cours d’un traitement thermique isotherme (100 ou 250 °C) dans des alliages Zn-Al et Zn-Al-Cu1. Le but est de mettre en évidence l’intérêt pratique des modifications structurales obtenues. On observe un meilleur résultat pour des échantillons vieillis pendant une semaine environ. La température de traitement la plus favorable est 250 °C. De plus, les alliages contenant du cuivre possèdent un meilleur comportement que les alliages binaires Zn-Al. [less ▲]

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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 detailRelationship between alpha 2-adrenergic function and suicidal behavior in depressed patients.
Pitchot, William ULg; Ansseau, Marc ULg; Gonzalez Moreno, A. et al

in Psychiatry Research (1994), 52(2), 115-23

The current main neurochemical theories of the biological correlates of suicidal behavior involve serotonergic and, to a lesser extent, dopaminergic systems. Few data are available about the possible ... [more ▼]

The current main neurochemical theories of the biological correlates of suicidal behavior involve serotonergic and, to a lesser extent, dopaminergic systems. Few data are available about the possible implication of the noradrenergic function. In the present study, we assessed the growth hormone response to clonidine, a selective alpha 2-adrenergic agonist, in 15 DSM-III-R major depressive inpatients with a history of suicide attempts, compared with 15 age- and gender-matched major depressive inpatients without a history of suicidal behavior. Mean (+/- SD) growth hormone peak responses to clonidine were significantly lower in the group of suicide attempters than in the control group: 2.93 +/- 3.01 ng/ml vs. 8.28 +/- 8.15 ng/ml. Therefore, these results suggest that a blunted growth hormone response to clonidine could be a biological correlate of suicidal behavior. [less ▲]

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See detailDistribution of POC, PON and particulate Al, Cd, Cr, Cu, Pb, Ti, Zn and deltaC13 in the English Channel and adjacent areas
Dauby, Patrick ULg; Frankignoulle, Michel; Gobert, Sylvie ULg et al

in Oceanologica Acta (1994), 17(6), 643-657

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See detailA Partial Approach To Model Checking
Godefroid, Patrice; Wolper, Pierre ULg

in Information & Computation (1994), 110(2), 305--326

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See detailImproved Experimental and Theoretical Energy Levels of Neon I
Chang, E. S.; Schoenfeld, W. G.; Biémont, Emile ULg et al

in Physica Scripta (1994), 49

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See detailL'hémorragie pulmonaire induite par l'exercise chez le cheval: une énigme de la médecine équine ?
Art, Tatiana ULg; Lekeux, Pierre ULg

in Annales de Médecine Vétérinaire (1994), 138

This review analyses the epidemiology, etiology, anatomo- and physiopathology, diagnose and prevention of the syndrome of exercise pulmonary hemorrhage in horses

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See detailBilateral diaphragmatic paralysis in a pony
Amory, Hélène ULg; Lomba, Fernand; Lekeux, Pierre ULg et al

in Journal of the American Veterinary Medical Association [=JAVMA] (1994), 205(4), 587-591

An adult pony had a 1-month history of severe respiratory distress that was resistant to treatment and environmental changes. Results of blood gas analysis were indicative of alveolar hypoventilation ... [more ▼]

An adult pony had a 1-month history of severe respiratory distress that was resistant to treatment and environmental changes. Results of blood gas analysis were indicative of alveolar hypoventilation. Simultaneous recordings of thoracic and abdominal wall motion by inductance plethysmography, together with complete pulmonary mechanics evaluation that included transdiaphragmatic pressure monitoring, revealed complete passive behavior of the diaphragm during breathing. Because radiography, necropsy, and histologic examination did not reveal any major lesion to explain the clinical and functional observations, bilateral diaphragmatic paralysis was diagnosed [less ▲]

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See detailOvarian endometrial cysts: the role of gonadotropin-releasing hormone agonist and/or drainage.
Donnez, Jacques; NISOLLE, Michelle ULg; Gillerot, Stéphane et al

in Fertility and Sterility (1994), 62(1), 63-6

Objective: To evaluate the role of GnRH agonist (GnRH-a) and/or drainage in the management of large endometriomas. DESIGN: This prospective clinical study was conducted in a parallel and randomized design ... [more ▼]

Objective: To evaluate the role of GnRH agonist (GnRH-a) and/or drainage in the management of large endometriomas. DESIGN: This prospective clinical study was conducted in a parallel and randomized design. SETTING: Department of Gynecology, Cliniques Universitaires St. Luc, Brussels, Belgium. PATIENTS: Eight infertile women with laparoscopically confirmed ovarian endometriotic cysts. After laparoscopic drainage of the ovarian cyst, patients were randomized. Patients in group I (n = 40) received no therapy. Patients in group II (n = 40) received GnRH-a therapy for 12 weeks. A second-look laparoscopy was performed after 12 weeks in each woman. RESULTS: After drainage, a quick recurrence of the endometrial cyst was observed in only group I. Indeed, the score and the cyst size were similar to the values observed before the first laparoscopy. In group II, a significant decrease in score and cyst diameter was observed. Ovarian biopsies revealed significant reduction in the stromal vascularization and a significant reduction in the mitotic activity in the group of women treated with GnRH-a. CONCLUSION: The quick recurrence of the ovarian cyst after drainage proved that drainage alone is ineffective. Drainage followed by GnRH-a was effective in the reduction of cyst size and the glandular mitotic activity. [less ▲]

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See detailLa Famille au présent : les valeurs familiales des Belges durant les années 90
Guillaume, Jean-François ULg

in Observatoire : Revue d'Action Sociale & Médico-Sociale (1994), 6(novembre-décembre), 24-29

Analyse de données de l'enquête européenne sur les valeurs (1990). Le texte souligne les valeurs sous-jacentes à un ordre conjugal axé sur la libre disposition de soi et le primat de la relation, au ... [more ▼]

Analyse de données de l'enquête européenne sur les valeurs (1990). Le texte souligne les valeurs sous-jacentes à un ordre conjugal axé sur la libre disposition de soi et le primat de la relation, au risque d'un repli sur soi. Les valeurs éducatives des années 1990 tendent à privilégier l'autonomie, l'ouverture à l'univers extra-familial et à conférer à l'enfant le statut d'un être indépendant. [less ▲]

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See detailCytochemical and immunocytochemical study of coiled bodies in different cultured cell lines.
Thiry, Marc ULg

in Chromosoma (1994), 103(4), 268-76

We analyzed by different cytochemical and immunocytochemical approaches the biochemical compositon of coiled bodies in three different cultured cell lines. Coiled bodies are stained by the AgNOR staining ... [more ▼]

We analyzed by different cytochemical and immunocytochemical approaches the biochemical compositon of coiled bodies in three different cultured cell lines. Coiled bodies are stained by the AgNOR staining method and by the EDTA regressive staining method preferential for ribonucleoprotein (RNP). Using the in situ polyadenylate nucleotidyl transferase-immunogold technique or anti-RNA antibodies, we decisively demonstrated the presence of appreciable amounts of RNA in coiled bodies. Neither the in situ terminal deoxynucleotidyl transferase-immunogold technique nor anti-DNA antibodies revealed any DNA in coiled bodies. Coiled bodies thus appear as distinct regions of cell nuclei involved in some steps of RNA metabolism but not directly in RNA synthesis. Their relationships with the dense fibrillar component of the nucleolus and with interchromatin granule clusters 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 detailStimulation of glutatione-peroxidase activity decreases HIV type-1 activation after oxidative stress
Sappey, C.; Legrand, Sylvie ULg; Best-Belopmme, M. et al

in AIDS Research and Human Retroviruses (1994), 10(11), 1451-1461

Am important aspect of human immunodeficiency virus (HIV-1) infection is the regulation of its expression by nuclear factor kappa B (NF-kappa B) by redox-controlled signal transduction pathways. In this ... [more ▼]

Am important aspect of human immunodeficiency virus (HIV-1) infection is the regulation of its expression by nuclear factor kappa B (NF-kappa B) by redox-controlled signal transduction pathways. In this study, we demonstrate that selenium supplementation can effectively increase glutathione peroxidase (GPx) activity in latently infected T lymphocytes. The Se-supplemented cells exhibited an important protection against the cytotoxic and reactivating effects of hydrogen peroxide (H2O2). Concomitantly, NF-kappa B activation by H2O2 was also decreased in Se-supplemented cells. Selenium stimulation of GPx activity also induces a protective effect against cell activation by tumor necrosis factor alpha (TNF-alpha) but less significantly by phorbol esters such as PMA. These Se-mediated effects were specific because they were not found when AP-1 DNA-binding activity was studied after H2O2-induced stress. Hyperthermia was also studied because it could promote intracellular electron leakage in electron transport chains. Elevating the temperature to 42 degrees C did not induce NF-kappa B directly. Rather, it sensitized infected cells to subsequent oxidative stress by H2O2, demonstrating the importance of hyperthermia, often associated with opportunistic infections in the development of immunodeficiency. In this case, Se induced partial protection against the sensitizing effect of hyperthermia. [less ▲]

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See detailTaqi Restriction-Fragment-Length-Polymorphisms For Growth-Hormone In Bovine Breeds And Their Association With Quantitative Traits
Sneyers, M.; Renaville, Robert ULg; Falaki, M. et al

in Growth Regulation (1994), 4(3),

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See detailModulatory Effect of Neuropeptide Y on Acetylcholine-Induced Oedema and Vasoconstriction in Isolated Perfused Lungs of Rabbit
Delaunois, Annie ULg; Gustin, Pascal ULg; Dessy-Doize, C. et al

in British Journal of Pharmacology (1994), 113(3), 973-81

1. The modulatory role of neuropeptide Y (NPY) on pulmonary oedema induced by acetylcholine and capsaicin was investigated. The effects of NPY on the haemodynamic response to acetylcholine, phenylephrine ... [more ▼]

1. The modulatory role of neuropeptide Y (NPY) on pulmonary oedema induced by acetylcholine and capsaicin was investigated. The effects of NPY on the haemodynamic response to acetylcholine, phenylephrine and substance P were also investigated. 2. Isolated, ventilated, exsanguinated lungs of the rabbit were perfused with a constant flow of recirculating blood-free perfusate. The double/arterial/venous occlusion method was used to partition the total pressure gradient (delta Pt) into four components: the arterial gradient (delta Pa), the pre- and post-capillary gradients (respectively delta Pa' and delta Pv') and the venous pressure gradient (delta Pv). Endothelial permeability was evaluated by measuring the capillary filtration coefficient (Kf,c). 3. Acetylcholine (10(-8) M to 10(-4) M) and substance P (SP, 10(-10) M to 10(-6) M) induced a concentration-dependent increase in the Kf,c. Capsaicin (10(-4) M) and 5-hydroxytryptamine (5-HT) (10(-4) M) also increased this parameter. NPY (10(-8) M) completely inhibited the effects of acetylcholine and capsaicin on the Kf,c, without preventing the effects of substance P and 5-HT. 4. Acetylcholine induced concentration-dependent vasoconstriction in the precapillary segment. The effect was inhibited by NPY and aspirin, an inhibitor of cyclo-oxygenase, while ketanserin, a 5-HT2 receptor antagonist, and SR140333, a new NK1 antagonist, had no protective effect. Phenylephrine increased delta Pa at high concentration, an effect also inhibited by NPY and aspirin. Substance P had no significant haemodynamic effect. When injected together with NPY, substance P (10(-6) M) induced a significant increase in the total pressure gradient.(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailComparative performance study of postal services: a productive efficiency approach
Pestieau, Pierre ULg; Perelman, Sergio ULg

in Annales d'Economie et de Statistique (1994), (33), 187-202

This paper first discusses the notion of economic performance as applied to public enterprises and argues that productive efficiency is an attractive approach to performance measurement for such firms. It ... [more ▼]

This paper first discusses the notion of economic performance as applied to public enterprises and argues that productive efficiency is an attractive approach to performance measurement for such firms. It then presents an empirical efficiency study of postal services which is aimed at comparing productive performance indicators across countries and at testing the effect of competition and regulation on these indicators. [less ▲]

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See detailStereoselective syntheses of cyclopropane derivatives from γ-alkoxy-α,β-unsaturated carbonyl compounds and methylene transfer reagents
Krief, Alain; Dumont, Willy; Lecomte, Philippe ULg

in Polish Journal of Chemistry (1994), 68

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See detailBI-BASED 2223 SUPERCONDUCTING POLYCRYSTALLINE MATERIALS PREPARED BY EITHER A SOLID-STATE ROUTE OR A GLASSY MATRIX PRECURSOR METHOD - CHEMICAL-ANALYSIS AS WELL AS ELECTRICAL AND THERMAL TRANSPORT-PROPERTIES
Cloots, Rudi ULg; Bougrine, Hassan ULg; HOUSSA, M. et al

in Physica C (1994), 231(3-4), 259-270

Two routes have been followed in order to prepare Bi1.7Pb0.3Sr2Ca2Cu3O(y) superconducting materials. Bi1.7Pb0.3CuO4 is always used as one of the starting basic materials. The first route involves a new ... [more ▼]

Two routes have been followed in order to prepare Bi1.7Pb0.3Sr2Ca2Cu3O(y) superconducting materials. Bi1.7Pb0.3CuO4 is always used as one of the starting basic materials. The first route involves a new experimental procedure based on the solid state synthesis of separate intermediate phases, mixed together in a two (Bi1.7Pb0.3CuO4 + 2SrCaCuO3), three (Bi1.7Pb0.3CuO4+2SrCuO2+2CaCO3) or four (Bi1.7Pb0.3CuO4+(1/12)Sr8Ca6Cu24O41 + (3/2)CaCO3 + (4/3)SrCO3) powder process. Electric resistivity versus temperature measurements are presented. Even though the T(c)(0) of each sample is above 100 K, X-ray diffraction shows that the main phase is the 2212 phase in each case. Relatively pure 2223 materials have, however, successfully been produced by the second method, which starts from a glassy intermediate phase and involves a so-called 'matrix' method. The glass precursor phase is composed of one (Bi1.7Pb0.3CuO4), two (Bi1.7Pb0.3CuO4 + 2CaCO3), and three (Bi1.7Pb0.3CuO4 + (3/2)CaCO3 + (4/3)SrCO3) components as for the solid state routes. The role of both the added alkaline earth crystalline compounds and the glass matrix precursors in this second method turns out to be very important. We propose a schematic structural model in order to explain the selectivity of the starting materials. SrCaCuO3 is found to be a good precursor of the 2212 phase, while SrCuO2 gives rise to the 2223 phase. It seems that the presence of CaCO3 in the glassy intermediate phase, thus acting as a cation reservoir, is very useful for the production of the 2223 phase. Electric resistivity, thermal conductivity and thermopower versus temperature measurements are also presented and discussed in terms of intergrowths and variations of cationic compositions in the Bi-based layers. [less ▲]

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See detailTHE BLOOD PROTEINS OF THE ANTARCTIC ICEFISH CHANNICHTHYS-RHINOCERATUS - BIOLOGICAL SIGNIFICANCE AND PURIFICATION OF THE 2 MAIN COMPONENTS
Feller, Georges ULg; Poncin, A.; Aittaleb, M. et al

in Comparative Biochemistry and Physiology. B : Comparative Biochemistry (1994), 109(1), 89-97

The lack of hemoglobin and of carbonic anhydrase in the blood of icefish suggest that substantial adaptations of the acid-base balance should occur in order to ensure blood pH homeostasis. The level of ... [more ▼]

The lack of hemoglobin and of carbonic anhydrase in the blood of icefish suggest that substantial adaptations of the acid-base balance should occur in order to ensure blood pH homeostasis. The level of peptidic histidyl and of reactive -SH groups per unit of body mass in icefish plasma are 12-13 times higher that those of Notothenia rossii, a common red-blooded Antarctic species. It is proposed that the high level of imidazole ring in icefish plasma improves the non-bicarbonate buffering capacity and that the reactive sulfhydryls are involved om a redox buffer as in some other hypoxia tolerant species. After plasma fractionation on Ultrogel AcA 34, the two main icefish serum proteins have been purified by DEAE cellulose chromatography (IFI) and by HPLC on anion exchange column (IF2). IFI has been identified as a cysteine-rich para-albumin and IF2 as an histidine-rich immunoglobulin-like protein. [less ▲]

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See detailPrésentation des activités du Laboratoire SURFACES de l'Université de Liège
Donnay, Jean-Paul ULg

in S.I.G. & Télédétection (1994), 12

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See detailWanze/Huccorgne: Station de l'Hermitage
Noiret, Pierre ULg

in Chronique de l'Archéologie wallonne (1994), 2

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See detailThe Pepinster formation in the Verviers synclinorium, between Pepinster and Eupen (Belgium). Structural and stratigraphical context
Hance, Luc ULg; Dejonghe, L; Fairon-Demaret, Muriel ULg et al

in Annales de la Société Géologique de Belgique (1994), 117

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See detailStructural Similarities Between Chaperone Molecules Of The Hsp60 And Hsp70 Families Deduced From Hydrophobic Cluster-Analysis
Callebaut, I.; Catelli, Mg.; Portetelle, Daniel ULg et al

in Febs Letters (1994), 342(3),

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See detailThe phytoplankton community of the river Meuse, Belgium: seasonal dynamics (year 1992) and the possible incidence of zooplankton grazing
Gosselain, Véronique ULg; Descy, Jean-Pierre; Everbecq, Etienne ULg

in Hydrobiologia (1994), 289

Qualitative and quantitative aspects of the phytoplankton of the river Meuse were studied during 1992 at a point 537 km from the source. The phytoplankton was dominated by diatoms and green algae. The ... [more ▼]

Qualitative and quantitative aspects of the phytoplankton of the river Meuse were studied during 1992 at a point 537 km from the source. The phytoplankton was dominated by diatoms and green algae. The factors regulating the phytoplankton groxth were clearly physical variables : discharge, temperature and irradiance. [less ▲]

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See detailJean Capart ou la naissance de l’égyptologie belge
Winand, Jean ULg

in Egyptes (1994), 4

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See detailA propos d'un cas de chylothorax compliquant une sclérose de varices oesophagiennes
Detry, Olivier ULg; Dekoster, Guy ULg; Honoré, Pierre ULg et al

in Lyon Chirurgical (1994), 90(1), 45-47

Chylothorax is an exceptional complication of endoscopic sclerotherapy of bleeding esophageal varices. We found only three cases in the literature. We report a fourth observation. We discuss the different ... [more ▼]

Chylothorax is an exceptional complication of endoscopic sclerotherapy of bleeding esophageal varices. We found only three cases in the literature. We report a fourth observation. We discuss the different etiologies and the different therapeutic approaches of these unusual chylothorax. [less ▲]

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See detailHuman RelB (I-Rel) functions as a kappa B site-dependent transactivating member of the family of Rel-related proteins.
Bours, Vincent ULg; Azarenko, V.; Dejardin, Emmanuel ULg et al

in Oncogene (1994), 9(6), 1699-702

RelB belongs to the family of Rel-related proteins, dimers of which determine NF-kappa B activity. The murine RelB protein has been reported to be a dimerizing partner in kappa B-binding complexes which ... [more ▼]

RelB belongs to the family of Rel-related proteins, dimers of which determine NF-kappa B activity. The murine RelB protein has been reported to be a dimerizing partner in kappa B-binding complexes which are capable of transactivation. On the other hand, the I-Rel protein, the presumed human homolog of RelB, was proposed to be an inhibitor whose presence in dimeric complexes interfered with their kappa B binding and therefore interfered also with transactivation. We demonstrate that human RelB (I-Rel) forms with p50 and p52 (p50B) kappa B-binding heterodimeric complexes which potently transactivate kappa B-dependent constructs in transfection studies. It is concluded that human RelB (I-Rel) and murine RelB can both function as transactivators and that no significant species-specific differences exist. [less ▲]

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See detailC'est le bouquet... Histoire d'un ornement typographique liégeois du XVIIIe siècle
Droixhe, Daniel ULg

in Gutenberg-Jahrbuch (1994), 69

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See detailUniversal scaling laws and the QCD scale anomaly
Ripka, Georges; Jaminon, Martine ULg

in Physics Reports (1994), 242

An effective chiral Lagrangian is given which implements the QCD scale anomaly and the universal scaling law of hadron masses. It is used to study the pion mass and the coupling between quark and gluon ... [more ▼]

An effective chiral Lagrangian is given which implements the QCD scale anomaly and the universal scaling law of hadron masses. It is used to study the pion mass and the coupling between quark and gluon condensates in dense matter. [less ▲]

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See detailHow to improve the working conditions with an aerosol delivery equipment suitable for calves ?
Genicot, B.; Peckova, M.; Lamberty, S. et al

in American Journal of Respiratory & Critical Care Medicine (1994), 149

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See detailHooliganisme: approches descriptives et explicatives, avec une attention particulière aux faits observés en Belgique
Comeron, Manuel ULg

in Revue Internationale de Criminologie et de Police Technique (1994), 2

Etude du phénomène de violence dans les stades de football en Belgique avec une approche empirique des supporters et hooligans du Standard de Liège couplée avec une synthèse théorique des travaux anglo ... [more ▼]

Etude du phénomène de violence dans les stades de football en Belgique avec une approche empirique des supporters et hooligans du Standard de Liège couplée avec une synthèse théorique des travaux anglo-saxons. [less ▲]

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See detailThe Perturbed Tikhonov's Algorithm and Some of its Applications
Tossings, Patricia ULg

in RAIRO : Modélisation Mathématique et Analyse Numérique (Mathematical Modelling and Numerical Analysis) (1994), 28(2), 189-221

The proximal point algorithm has known these last years many developments connected with the expansion of the variational convergence theory. Motivated by this fact and inspired by the work of A. Tikhonov ... [more ▼]

The proximal point algorithm has known these last years many developments connected with the expansion of the variational convergence theory. Motivated by this fact and inspired by the work of A. Tikhonov and V. Arsénine in the context of convex optimization, we present a new algorithm for searching a zero of a maximal monotone operator on a real Hilbert space. We study the perturbed version of this algorithm and establish a critical comparison with the perturbed proximal point algorithm. We apply this new algorithm to convex optimization and to variational inclusions or, more particularly, to variational inequalities. [less ▲]

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See detailFear reactions of ewes to photographic images
Vandenheede, Marc ULg; Bouissou, Marie-France

in Behavioural Processes (1994), 32

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See detailC.R. du Mystère de la Résurrection. (Angers, 1456)
Henrard, Nadine ULg

in Lettres Romanes (1994), XLVIII(1-2), 112-114

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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 detailAnti-LFA-1 (CD11a) monoclonal antibody interferes with the induction of neonatal tolerance to alloantigens
Schurmans, Stéphane ULg; Gonzalez, A.; Revilla, C. et al

in European Journal of Immunology (1994), 24

The injection of (C57BL/6 x BALB/c)F1 spleen cells into newborn BALB/c mice results in the induction of a specific cytotoxic T lymphocyte (CTL) tolerance to the alloantigens. On the contrary, alloreactive ... [more ▼]

The injection of (C57BL/6 x BALB/c)F1 spleen cells into newborn BALB/c mice results in the induction of a specific cytotoxic T lymphocyte (CTL) tolerance to the alloantigens. On the contrary, alloreactive CD4+ T cells persist in the host and are still able to activate autoreactive F1 B cells to produce autoantibodies. This state of "split tolerance" is closely associated with the development of a lupus-like autoimmune syndrome. The LFA-1 integrin plays a relevant role in homing, intercellular adhesion and tranduction of co-stimulatory signals in leukocytes. Because of the beneficial effects of anti-LFA-1 monoclonal antibodies (mAb) treatment in various models of organ transplantation and autoimmune disease, we have investigated if such a treatment could interfere with the induction of neonatal tolerance or the development of the autoimmune syndrome in F1 cell-injected newborn mice. For this purpose, BALB/c mice neonatally injected with F1 cells were treated from day 1 up to day 15 with a non-cytotoxic anti-LFA-1 (CD11a) mAb. Anti-LFA-1 mAb treatment interfered with the persistence of a stable chimerism and with the establishment of CTL tolerance, as shown by rejection of allogeneic skin grafts and F1 B cells, and by a normal in vitro CTL activity against the corresponding alloantigens. As a consequence, these mice did not develop the characteristic autoimmune features seen in close association with an effective induction of CTL tolerance to alloantigens. These results stress the importance of the interactions between LFA-1 and its ligands during the neonatal induction of tolerance to alloantigens [less ▲]

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See detailIs aprotinin worth the risk in total hip replacement?
Janssens, Marc ULg; Joris, Jean ULg

in Anesthesiology (1994), 81(2), 518-519

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See detailCas d'étymologie double dans le FEW (V)
Boutier, Marie-Guy ULg; Büchi, Eva; Chambon, Jean-Pierre et al

in Travaux de linguistique et de philologie (1994), 32

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See detailTHERMAL-CONDUCTIVITY OF PURE OR IRON-DOPED YBA2CU3O7-DELTA WITH OR WITHOUT AN EXCESS OF CUO
Houssa, M.; Bougrine, Hassan ULg; Ausloos, Marcel ULg et al

in Journal of Physics : Condensed Matter (1994), 6(31), 6305-6316

The thermal conductivities of YBa2(Cu1-xFex)3O7-delta + y% CuO ceramics for 0 < x < 0.03 and 0 < y < 5 have been measured. The thermal conductivities of all samples exhibit a minimum in the vicinity of ... [more ▼]

The thermal conductivities of YBa2(Cu1-xFex)3O7-delta + y% CuO ceramics for 0 < x < 0.03 and 0 < y < 5 have been measured. The thermal conductivities of all samples exhibit a minimum in the vicinity of the critical temperature T(c) and a maximum near T(c)/2. These results are interpreted with the help of an electronic model, i.e. supposing that the main contribution to the thermal conductivity below T(c) is due to electron scattering in the CuO2 planes. Within a simple two-fluid model derived from kinetic theory, taking into account the temperature dependence of the electronic relaxation time and the normal charge carrier concentration, we obtain theoretical curves which reproduce the experimental results quite well. We also take into account the porosity of the samples (in term of an intergrain contribution) to derive the electronic thermal conductivity. The parameter values of the model and the observed minimum are explained in terms of physical properties. In particular, the contribution of superconductivity fluctuations to the thermal conductivity is shown to be negligible with respect to other mechanisms. [less ▲]

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See detailEvolutionary affiliation of the marine nitrogen-fixing cyanobacterium Trichodesmium sp. strain NlBB 1067, derived by 16s ribosomal RNA sequence analysis
Wilmotte, Annick ULg; Neefs, Jean-Marc; De Wachter, Rupert

in Microbiology (1994), 140

The 165 rRNA sequence of Trichodesmium sp. strain NlBB 1067 was determined and used for the construction of a distance tree and bootstrap analysis. The tree shows that, among the available cyanobacterial ... [more ▼]

The 165 rRNA sequence of Trichodesmium sp. strain NlBB 1067 was determined and used for the construction of a distance tree and bootstrap analysis. The tree shows that, among the available cyanobacterial 165 rRNA sequences, Trichodesmium NlBB 1067 has Oscillatoria PCC 7515 as its closest relative, presenting 94.9% of sequence similarity with the latter strain. This is in contrast to a difference of 9 mol O/O G + C in mean genomic DNA base composition between the two organisms. Nevertheless, the genotypic heterogeneity presented by a number of strains assigned to the genus Oscillatoria hinders a taxonomic decision on the separate existence of the genera Trichodesmium and Oscillatoria. The sequence of the internal transcribed spacer (ITS) between the 165 and 23s rRNA genes was also determined, as a possible marker to study inter- and intraspecif ic variability. The ITS contains the genes coding for tRNA1Ie and tRNAAia and its total length is 547 nucleotides. In six out of eight sequenced clones, there is a duplication of 29 nucleotides, surrounding the 5' end of the tRNA1Ie. [less ▲]

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See detailInfluence de la pluie sur l'utilisation d'un abri par des taurillons au pâturage
Vandenheede, Marc ULg; Sheri, R.; Nicks, Baudouin ULg et al

in Annales de Médecine Vétérinaire (1994), 138

The time spent under a shelter by 8 grazing fattening bulls of the Belgian Blue breed was recorded during 35 days using a time-lapse recorder with IR illumination. The observation period was divided into ... [more ▼]

The time spent under a shelter by 8 grazing fattening bulls of the Belgian Blue breed was recorded during 35 days using a time-lapse recorder with IR illumination. The observation period was divided into 166 hours with rain (20 %) and 674 hours without precipitation (80 %). An occupation rate was calculated for each hour as the sum of the time spent under the shelter by each of the 8 bulls divided by 480 (8 animals x 60 minutes). The average occupation rates were 15.4 +/- 29.1 % for the hours with rain and 4.5 +/- 14.8 % for the hours without precipitation (P<0.001). The occupation rate was significantly influenced by intensity and duration of the rain : the occupation rate being higher during rainfall than with dry weather when the intensity of the rain was at least 0.4 l/m2 and the duration more than 2 hours. There was no significant difference between the live weight gain of the animals with a shelter and of other bulls grazing on an adjacent pasture without shelter. Our observations suggested however that a shelter may improve the welfare of the animals. [less ▲]

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See detailConnection and frame design for economy
Anderson, D.; Colson, A.; Jaspart, Jean-Pierre ULg

in Bouwen met Staal (1994), n°117

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See detailMarqueurs tumoraux
Charlier, Corinne ULg; Plomteux, Guy ULg

in Focus Diagnostica (1994), 2

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See detailPlace of MALT in the immune defence system.
Heinen, Ernst ULg

in Advances in Experimental Medicine and Biology (1994), 355

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See detailA note on the size-fractionated pigments of the phytoplankton of the Strait of Magellan (February-March 1991)
Saggiomo, Vincenzo; Mangoni, Olga; Borriello, C. et al

in Oebalia : International Journal of Marine Biology and Oceanography (1994), XX

During an oceanographic cruise, carried out at the end of the austral summer (February-March 1991) in the Strait of Magellan, spatial patterns of size-fractionated chlorophyll and primary production were ... [more ▼]

During an oceanographic cruise, carried out at the end of the austral summer (February-March 1991) in the Strait of Magellan, spatial patterns of size-fractionated chlorophyll and primary production were studied in relation to hydrographic patterns. Phytoplankton biomass, in terms of active Chl a, ranged between 10 and 51 mg m-2 and primary production between 275 and 1 170 mg C m-2 d-1. The most important features concern the confinement of the microphytoplanktonic fraction to the Pacific opening and to the embayements between the two Narrows. In the internal part of the Strait, an uniform dimensional structure (< 5 um) of phytoplankton communities was observed, with the picophytoplanktonic fraction always dominant. [less ▲]

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See detailHereditary muscular hypertrophy in cattle is associated with a reduced myocardial contractility
Amory, Hélène ULg; Mc Entee, Kathleen ULg; Linden, Annick ULg et al

in Pflügers Archiv : European Journal of Physiology (1994), 426

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See detailLes indices de déformation plio-quaternaire de la bordure occidentale du bassin des Iullemenden dans la région de Niamey (Niger).
Vicat, Jean-Paul; Léger, Jean-Marc; AHMED, Y et al

in Revue de Géographie Alpine (1994), 5

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See detailQuelle stratégie pour le développement rural dans la structuration de l'espace régional?
Rondeux, Jacques ULg

in Annales de Gembloux (1994), 100(3-4), 93-107

L’espace rural comporte tellement de paramètres et de diversités et vit aujourd’hui tellement de mutations que le définir de manière précise est une gageure. On pourrait dire qu’il concerne un territoire ... [more ▼]

L’espace rural comporte tellement de paramètres et de diversités et vit aujourd’hui tellement de mutations que le définir de manière précise est une gageure. On pourrait dire qu’il concerne un territoire essentiellement agricole, à contours diffus, caractérisé par une grande diversité où l’homme y voit une source d’activités multiples, saisonnières ou complémentaires, de services gratuits et de ressources renouvelables : l’air, l’eau, le paysage. Ce n’est pas la ville, ce n’est pas le site industriel mais cela peut être les champs entre deux agglomérations, la forêt entre deux villes et surtout les grands espaces, le monde ouvert dans lequel on oublierait un peu vite que pour maintenir son originalité et valoriser ses atouts et donc se développer il doit se raccrocher à des villes, chacun tirant profit des spécificités et des potentialités de l’autre. Non au désert économique, non aux services systématiquement gratuits, non à l’absence de tissu urbain adapté ; voilà les conditions pour le maintien ou pour un oui à une agriculture revue et corrigée, à la qualité de la vie, à la beauté des paysages, aux espaces de liberté et de détente, en un mot à une nouvelle ruralité basée sur la solidarité. [less ▲]

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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 detailMax Ophuls : le cristal et la tache
Belloi, Livio ULg

in Cinémathèque (1994), 6(automne),

Cette étude porte sur les quatre derniers films de Max Ophuls ("La Ronde", "Le Plaisir", "Madame de" et "Lola Montès") et s'attache à révéler, en eux, une forme de dilemme du visible (entre transparence ... [more ▼]

Cette étude porte sur les quatre derniers films de Max Ophuls ("La Ronde", "Le Plaisir", "Madame de" et "Lola Montès") et s'attache à révéler, en eux, une forme de dilemme du visible (entre transparence et opacité) que la modernité cinématographique inscrira résolument à son ordre du jour. [less ▲]

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See detailDe réels progrès ont-ils été faits dans le traitement de l'ostéoporose ?
Reginster, Jean-Yves ULg; DEROISY, Rita ULg; Franchimont, P

in Medisearch (1994), 81

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See detailApprendre, ou se mettre en projet ? Réflexions au départ d'une expérience de pédagogie du projet en classe du secondaire
Jadoulle, Jean-Louis ULg

in Histoire et Enseignement : Bulletin (1994), 44e année(n°1), 5-17

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See detailHuman follicular dendritic cells in vitro
Tsunoda, R.; Heinen, Ernst ULg; Imai, Y. et al

in Dendritic Cells (1994), 4

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See detailHistorical seismicity of the lower Rhine and Meuse valleys from 600 to 1525 : a new critical review
Alexandre, Pierre ULg

in Netherlands Journal of Geosciences - Geologie en Mijnbouw (1994), 173

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See detailBiostatistical studies of Western European allogamous populations of the Epipactis helleborine (L.) Crantz species group (Orchidaceae)
Tyteca, D.; Dufrêne, Marc ULg

in Systematic Botany (1994), 19(3), 424-442

[No abstract available]

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See detailRole des somatomedines/insulin-like growth factors dans la croissance ponderale foetale.
Renaville, Robert ULg; Falaki, M.; Burny, A. et al

in Bulletin des Recherches Agronomiques de Gembloux (1994), 29(3),

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See detailCo-movements and dynamic interrelationships in pacific basin stock markets
Corhay, Albert ULg; Tourani-Rad, Alireza; Urbain, Jean-Pierre ULg

in Research in International Business and Finance (1994), 11B

In this paper, we investigate dynamic interrelationships among the stock markets of Australia, Hong Kong, Japan, New Zealand and Singapore. Using cointegration analysis and the Granger causality test we ... [more ▼]

In this paper, we investigate dynamic interrelationships among the stock markets of Australia, Hong Kong, Japan, New Zealand and Singapore. Using cointegration analysis and the Granger causality test we find that, although the five stock price indices share some common trends, the only stock price which does not apparently Granger cause (precede) the remaining stock prices is that of New Zealand. It is further observed that all price indices are caused by the remaining stock prices except that of Australia. With respect to the geographical separation, it appears that when we consider the Asian countries as an entity and those of the Pacific as another entity, they seem not to influence each other significantly. [less ▲]

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See detailMétaux lourds et isotopes stables du carbone dans la matière particulaire: distribution sur le plateau continental nord-ouest européen
Dauby, Patrick ULg; Mosora, Fiorentina; Frankignoulle, Michel et al

in Bulletin de la Société Royale des Sciences de Liège (1994), 63

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See detailStudies of marine epiphytic algae, Calvi, Corsica. III. Variations in the populations of epiphytic Bangiophyceae
Hoffmann, Lucien; Detienne, Xavier; Goffart, Anne ULg et al

in Cryptogamie Algologie (1994), 15(1), 53-63

Variations in the populations of Bangiophyceae (Rhodophyta) epiphytic on Cladophora prolifera and Stypocaulon scoparium were monitored qualitatively and quantitatively for two years (1981/82 and 1987/88 ... [more ▼]

Variations in the populations of Bangiophyceae (Rhodophyta) epiphytic on Cladophora prolifera and Stypocaulon scoparium were monitored qualitatively and quantitatively for two years (1981/82 and 1987/88) in nine stations with constrasting water quality in the area of Calvi (Corsica). The development of Chroodactylon ornatum was temperature dependent and showed its maximum density during the summer. The development of the other Bangiophyceae (Erythrocladia irregularis, Erythrotrichia camea, Goniotrichum alsidii, G. cornu-cewi) was correlated to the water quality in that their density increased towards the sewage discharge near to the town of Calvi. A general increase in epiphytism by Bangiophyceae between 1981 and 1988 seems to indicate an increased degree of eutrophication in the bay of Calvi. [less ▲]

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See detailGravitational lenses
Refsdal, S.; Surdej, Jean ULg

in Reports on Progress in Physics (1994), 57

According to Einstein's general theory of relativity, a gravitational field bends electromagnetic waves in much the same way as low atmospheric air layers curve the trajectory of a propagating light ray ... [more ▼]

According to Einstein's general theory of relativity, a gravitational field bends electromagnetic waves in much the same way as low atmospheric air layers curve the trajectory of a propagating light ray. Large mass concentrations in the universe can thereby act as a type of lens, a gravitational lens. After briefly reviewing the history of gravitational lensing since the early thoughts of Newton in 1704 until the serendipitous discovery of the first gravitational lens system in 1979, the authors recall the basic principles of atmospheric and gravitational lensing. They then describe a simple optical gravitational lens experiment which has the merit of accounting for all types of image configuration observed among currently known gravitational lens systems. Various types of gravitational lens models are described in detail as well as the resulting image properties of a distant source. An updated list as well as colour illustrations of the best known examples of multiply imaged quasars, radio rings and giant luminous arcs and arclets are presented. Some of these observations are discussed in detail. Finally, the authors show how it is possible to use gravitational lensing as a cosmological and astrophysical tool, the most interesting applications being the determination of the Hubble parameter H[SUB]0[/SUB], the mass of very distant lensing galaxies as well as the distribution of luminous and dark matter in the universe. They also show how to determine the size and structure of distant quasars from observations of micro-lensing effects. [less ▲]

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See detailLe Christ de Wavreumont
Van den Bossche, Benoît ULg

in Folklore. Stavelot – Malmedy – Saint-Vith (1994), 55

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See detailTraducteurs et traductions dans l'Egypte gréco-romaine
Rochette, Bruno ULg

in Chronique d'Egypte : Bulletin Périodique de la Fondation Egyptologique Reine Elisabeth (1994), 69(138), 313-322

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See detailEffet du chargement et de la période de complémentation au pâturage sur les performances de taurillons finis en stabulation
Dufrasne, Isabelle ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in Annales de Médecine Vétérinaire (1994), 138

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See detailBrucellose enzootique à Brucella suis biotype 2 chez le sanglier (sus scrofa) en Belgique
Godfroid, J.; Michel, P.; Uytterhaegen, L. et al

in Annales de Médecine Vétérinaire (1994), 138

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See detailSpectrum analysis of diaphragmatic global electromyograms in cattle, with special regard to appropriate strategy for detection of fatigue.
Desmecht, Daniel ULg; Linden, Annick ULg; Close, R. P. et al

in American Journal of Veterinary Research (1994), 55

Although the respiratory tract of healthy and diseased cattle has been intensively studied during the past few years, only a few attempts to detect dysfunctions of bovine inspiratory muscles have been ... [more ▼]

Although the respiratory tract of healthy and diseased cattle has been intensively studied during the past few years, only a few attempts to detect dysfunctions of bovine inspiratory muscles have been reported. Such technique would be useful in assessing the possibility of inspiratory muscle fatigue in the context of ventilatory failure. Fatigue in skeletal muscle is associated with characteristic changes in the electromyographic power spectrum. Power spectral analysis was therefore applied to cattle diaphragmatic electromyograms (EMGdi) to precisely determine the exact influence of motion and ECG artifacts, describe its basic frequency content, and extract a spectral index capable of providing an accurate warning of fatigue. The EMGdi was recorded via intramuscularly placed fishhook electrodes in 5 healthy young bulls during resting and stimulated respiration. The EMGdi and EGC signals were analyzed by use of power spectral density analysis after band-pass filtering (20 to 1,800 Hz). The EMGdi spectrum was concentrated in the band width 20 to 530 Hz. Electrode motion artifacts were absent, and it was always possible to find an electrode pair giving ECG-free EMGdi. Of the 12 power and frequency values used to quantitate the spectrum, the most stable was the centroid frequency. It was reproducible within and between calves and was only minimally altered by changing inspiratory load.(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailLa maladie de Lyme : une nouvelle maladie?
Mainil, Jacques ULg

in Annales de Médecine Vétérinaire (1994), 138

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See detailAsthme et hyperréactivité bronchique non spécifique
Louis, Renaud ULg; Kayembe, J. M.; Radermecker, Maurice ULg

in Acta Clinica Belgica (1994), 49(3-4), 148-57

Bronchial hyperresponsiveness is a hallmark of asthma although it can also be present, to a lesser extent, in other diseases. The level of bronchial responsiveness depends on immuno-inflammatory processes ... [more ▼]

Bronchial hyperresponsiveness is a hallmark of asthma although it can also be present, to a lesser extent, in other diseases. The level of bronchial responsiveness depends on immuno-inflammatory processes modifying the functional status of airway smooth muscle as well as the structure of the bronchial wall. The responsiveness toward a direct constricting pharmacological agent is poorly correlated to the one toward an indirect constricting agent or a physical stimulus which cause airway obstruction through a more complex mechanism. Transversal studies show a relationship between the severity of asthma and the level of methacholine airway responsiveness. Long term treatment with corticoids can reduce the bronchial hyperresponsiveness of asthmatics. [less ▲]

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See detailCrystallization and X-ray diffraction study of the Streptomyces K15 penicillin-binding DD-transpeptidase.
Englebert, S.; Charlier, Paulette ULg; Fonze, E. et al

in Journal of Molecular Biology (1994), 241(2), 295-7

The 262 amino acid residue long DD-transpeptidase/penicillin-binding protein of Streptomyces K15 has been crystallized at room temperature by using the hanging drop vapour diffusion technique. The ... [more ▼]

The 262 amino acid residue long DD-transpeptidase/penicillin-binding protein of Streptomyces K15 has been crystallized at room temperature by using the hanging drop vapour diffusion technique. The crystals belong to the orthorhombic space group P2(1)2(1)2(1), with unit cell parameters a = 46.4 A, b = 54.1 A and c = 108.3 A. They contain one protein molecule per asymmetric unit and diffract to about 1.9 A. X-ray data have been collected to 2.0 A from a native crystal. The previously published amino acid sequence of the protein has been corrected at positions 71, 72, 113, 114 and 156. [less ▲]

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See detailThird Catalogue of stars measured in the Long-Term Photometry of Variables project.
Manfroid, Jean ULg; Sterken, C.; Cunow, B. et al

in European Southern Observatory Scientific Report (1994), 14

Not Available

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See detailThe functional proof of the diaphragm's specific type of motor innervation in Ongulae
Desmecht, Daniel ULg; Linden, Annick ULg; Leroy, Pascal ULg et al

in Pflügers Archiv : European Journal of Physiology (1994), 426

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See detailThe Compartmentation of Phosphorylated Thiamine Derivatives in Cultured Neuroblastoma Cells
Bettendorff, Lucien ULg

in Biochimica et Biophysica Acta (1994), 1222(1), 7-14

Thiamine transport in cultured neuroblastoma cells is mediated by a high-affinity carrier (KM = 40 nM). In contrast, the uptake of the more hydrophobic sulbutiamine (isobutyrylthiamine disulfide) is ... [more ▼]

Thiamine transport in cultured neuroblastoma cells is mediated by a high-affinity carrier (KM = 40 nM). In contrast, the uptake of the more hydrophobic sulbutiamine (isobutyrylthiamine disulfide) is unsaturable and its initial transport rate is 20-times faster than for thiamine. In the cytoplasm, sulbutiamine is rapidly hydrolyzed and reduced to free thiamine, the overall process resulting in a rapid and concentrative thiamine accumulation. Incorporation of radioactivity from [14C]thiamine or [14C]sulbutiamine into intracellular thiamine diphosphate is slow in both cases. Despite the fact that the diphosphate is probably the direct precursor for both thiamine monophosphate and triphosphate, the specific radioactivity increased much faster for the latter two compounds than for thiamine diphosphate. This suggests the existence of two pools of thiamine diphosphate, the larger one having a very slow turnover (about 17 h); a much smaller, rapidly turning over pool would be the precursor of thiamine mono- and triphosphate. The turnover time for thiamine triphosphate could be estimated to be 1-2 h. When preloading the cells with [14C]sulbutiamine was followed by a chase with the same concentration of the unlabeled compound, the specific radioactivities of thiamine and thiamine monophosphate decreased exponentially as expected, but labeling of the diphosphate continued to increase slowly. Specific radioactivity of thiamine triphosphate increased first, but after 30 min it began to slowly decrease. These results show for the first time the existence of distinct thiamine diphosphate pools in the same homogeneous cell population. They also suggest a complex compartmentation of thiamine metabolism. [less ▲]

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See detailThe Unbearable Burden of Being: Janet Frame's "Snowman, Snowman"
Delrez, Marc ULg

in Commonwealth : Essays and Studies (1994), 17(1), 89-99

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