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See detailVirulence factors associated with cytotoxic necrotizing factor two in bovine diarrheic and septicemic strains of Escherichia coli.
Oswald, E.; De Rycke, J.; Lintermans, P. et al

in Journal of Clinical Microbiology (1991), 29

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See detailDes nouveaux supports électroniques. Pour qui ? pour quoi ?
Denooz, Joseph ULg

in Revue. Informatique et Statistique dans les Sciences Humaines (1991), 27

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See detailLa biologie des infections par morbillivirus
Pastoret, Paul-Pierre ULg; Van Bressem, M. F.; Diallo, A. et al

in Annales de Médecine Vétérinaire (1991), 135

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See detailLa recherche en Brucellose entreprise par le CEB (2e partie)
Limet, J.; Oanh Vo, T. K.; Saegerman, Claude ULg et al

in Les élevages belges (1991)

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See detailMalitrah : une formation en alternance dans l'enseignement professionnel spécial de plain exercice : présentation d'un projet
Beckers, Jacqueline ULg

in Revue de la Direction Générale de l’Organisation des Etudes (1991), 2

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See detailTransition rates and wavelengths in the X-ray spectra of nickel-like ions (Ag XX - Pb LV)
Quinet, Pascal ULg; Biémont, E

in Physica Scripta (1991), 43

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See detailHow do preschool teacher's requests influence children's behaviors ?
Crahay, Marcel ULg; Delhaxhe, Arlette

in Teaching & Teacher Education (1991), 7(3), 221-239

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See detailEcologie de la loutre dans le Marais Poitevin III. Variations du régime et tactique alimentaire.
Libois, Roland ULg; Rosoux, René; Delooz, Etienne

in Cahiers d'Ethologie (1991), 11(1), 31-50

During the spring 1988, spraint samples were collected on the banks of 3 watercourses (one river and two canals) crossing the Marais Poitevin. Their general characteristics (flow rate, conductivity ... [more ▼]

During the spring 1988, spraint samples were collected on the banks of 3 watercourses (one river and two canals) crossing the Marais Poitevin. Their general characteristics (flow rate, conductivity, hydrographic regime) are quite different. The fish community of the two canals was sampled by electrofishing and we estimated the relative abundance of the different fish species. After a check of the reliability of our spraint analysis technique (feeding trials with captive otters), we made an estimate of the relative abundance of the prey items in the otters diet and an assessment of the length and of the weight of each individual fish preyed upon. They are indeed very strong length-weight correlations in fish and also close relationships between the length of some skull bones and the total length od a fish. The diet is mostly made up by the eel. It comprises also a great variety of other fish species, nearly all that were observend in the habitat. Much frogs, some snakes, birds, mammals, insects and crustaceans were also discovered. They are only slight diet differences between the main watercourses which probably are related to the characteristics of their fish fauna (e.g. much more sticklebacks when waters are becoming brackish; big amount of Atherina in salt marshes). No marked variations were found during a normal summer but fish is obviously less eaten during a severe drought. Comparing the frequency-distributions of fish in the diet and in the habitat, we found no selective predation in respect with fish (eel, cyprinids) size. From that point of view, the otter display a generalistic-opportunistic pattern of foraging. As far as the relative abundance of the various species is considered, otters take much less roaches and much more eels and tenches than present in the habitat. It remains to be seen if that is the consequence of a 'deliberate choice' or of a peculiar way of underwater huntig. A fact is that the otter principally eats bottom living fishes. [less ▲]

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See detailMechanical Properties of the Isolated Equine Trachea
Art, Tatiana ULg; Lekeux, Pierre ULg

in Research in Veterinary Science (1991), 51(1), 55-60

In order to study the in vitro mechanical properties of the equine trachea submitted to the compressive pressures observed in vivo, the pressure-volume relationship was determined in intra- and extra ... [more ▼]

In order to study the in vitro mechanical properties of the equine trachea submitted to the compressive pressures observed in vivo, the pressure-volume relationship was determined in intra- and extra-thoracic tracheal segments taken post mortem from 29 healthy horses (one to 15 years old; 352 to 651 kg). At the same time, the cross-sectional lumen area (X-SA) at the mid-point of the segment was measured using a slit-lamp transillumination and photographic measurement by endoscopy. The tracheal specific compliance (Cs) as well as the relative changes in X-SA and in the sagittal and transverse diameters, for intraluminal pressures from 5 to - 5 kPa, were calculated. The extrathoracic tracheal Cs was 0.060 +/- 0.002 kPa-1 and, at an intraluminal pressure of - 5 kPa, X-SA was reduced to about 73 per cent of its resting value. The intrathoracic segments were more compliant and, at similar compressive pressure, their X-SA was more reduced. These data show that the equine tracheal compliance is high and suggest that the increase in pulmonary resistance observed during strenuous exercise may be partly explained by a partial tracheal collapse. [less ▲]

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See detailLobeline-Induced Hyperpnea in Equids. Comparison with Rebreathing Bag and Exercise
Art, Tatiana ULg; Desmecht, Daniel ULg; Amory, Hélène ULg et al

in Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine (1991), 38(2), 148-152

In order to facilitate lung auscultation, a transitory hyperpnea may be obtained by lobeline administration, use of a rebreathing bag or exercise. The effect of these three methods on the pulmonary ... [more ▼]

In order to facilitate lung auscultation, a transitory hyperpnea may be obtained by lobeline administration, use of a rebreathing bag or exercise. The effect of these three methods on the pulmonary function were studied and compared in 5 healthy ponies. Respiratory airflow and tidal volume were measured with a pneumotachograph Nr. 5 and pleural pressure with the esophageal balloon catheter technique. Pulmonary function values were measured before, during and after the hyperpnea induced by (i) lobeline, (ii) rebreathing and (iii) exercise. Lobeline administration induced an hyperpnea due to both an increase in tidal volume and respiratory rate; this increase in ventilation lasted for about 90 s and was accompanied by a sharp rise in the respiratory peak airflows, especially the expiratory ones. The rebreathing method induced a less hyperpnea which lasted only 30 s. Lastly the hyperpnea after a light treadmill exercise was the longer in duration and intermediate between the preceding methods in intensity [less ▲]

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See detailCharacterization of an unusual thyroid response unit in the promoter of the human placental lactogen gene
Voz, Marianne ULg; Peers, Bernard ULg; Belayew, Alexandra et al

in Journal of Biological Chemistry (1991), 266(20), 13397-404

The human placental lactogen B (hCS-B) promoter activity is strongly stimulated by thyroid hormones in the rat pituitary GC cell line. The minimal DNA sequence required for stimulation, as determined by ... [more ▼]

The human placental lactogen B (hCS-B) promoter activity is strongly stimulated by thyroid hormones in the rat pituitary GC cell line. The minimal DNA sequence required for stimulation, as determined by transfection with 5' and 3' deletion mutants, spans 67 base pairs, from coordinate -97 to -31. DNase I footprinting experiments show that this thyroid response unit includes two adjacent binding sites: one for the thyroid receptor (-67/-41), the other for the pituitary-specific factor GHF1 (-95/-68). Neither region alone is sufficient to confer thyroid responsiveness. The thyroid receptor binding element (TBE) does not contain any repeats or palindromes but is composed of two different domains, one of which is very similar to the half-palindromic motif described by Glass et al. (Glass, C.K., Holloway, J.M., Devary, O.L., and Rosenfeld, M.G. (1988) Cell 54, 313-323). The other is very rich in purine. The normal human growth hormone (hGH-N) promoter, which is 94% similar to the hCS-B promoter, differs from its hCS-B counterpart precisely in this TBE. This difference may explain the opposite 3,5,3'-triiodothyronine (T3) regulation of these two genes. [less ▲]

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See detailLes plantes emsiennes de Marchin (bord nord du Synclinorium de Dinant, Belgique). II. Forgesia curvata gen. et sp. nov.
Gerrienne, Philippe ULg

in Comptes Rendus de l'Académie des Sciences. Série II. Mécanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre (1991), 313

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See detailDecrease of frontal metabolism demonstrated by positron emission tomography in a population of healthy elderly volunteers.
Salmon, Eric ULg; Maquet, Pierre ULg; Sadzot, Bernard ULg et al

in Acta Neurologica Belgica (1991), 91(5), 288-95

Frontal metabolism measured with positron emission tomography is shown to be decreased relatively to that in other cortical or sub-cortical areas, in a population of healthy elderly compared to young ... [more ▼]

Frontal metabolism measured with positron emission tomography is shown to be decreased relatively to that in other cortical or sub-cortical areas, in a population of healthy elderly compared to young volunteers. Cortical atrophy or neuronal depopulation are unlikely to entirely explain this physiological phenomenon, and sub-cortico-cortical deactivation should play a role, analogous to that proposed in subcortical diseases. [less ▲]

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See detailCharacterization of a set of variable number of tandem repeat markers conserved in Bovidae
Georges, Michel ULg; Gunawardana, A.; Threadgill, D. et al

in Genomics (1991), 11(1), 24-32

Screening purpose-built libraries with minisatellite probes, we have isolated 36 bovine variable number of tandem repeat markers (VNTRs) characterized by a mean heterozygosity of 59.3 within the American ... [more ▼]

Screening purpose-built libraries with minisatellite probes, we have isolated 36 bovine variable number of tandem repeat markers (VNTRs) characterized by a mean heterozygosity of 59.3 within the American Holstein breed. Matching probabilities and exclusion powers were estimated by Monte-Carlo simulation, showing that the top 5 to 10 markers could be used as a very efficient DNA-based system for individual identification and paternity diagnosis. The isolated VNTR systems should contribute significantly to the establishment of a bovine primary DNA marker map. Linkage analysis, use of somatic cell hybrids, and in situ hybridization demonstrate that these bovine VNTRs are scattered throughout the bovine genome, without evidence for proterminal confinement as in the human, and that at least some of them are organized as clusters. Moreover, Southern blot analysis and in situ hybridization demonstrate conservation of sequence and map location of minisatellites within Bovidae [less ▲]

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See detailL'immersion dans la vie professionnelle dès la formation initiale : pourquoi ?
Beckers, Jacqueline ULg

in Revue de la Direction Générale de l’Organisation des Etudes (1991), 2

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See detailIntérêt de l'électromyostimulation de basse fréquence dans la rééducation du quadriceps
Constant, T.; Vanderthommen, Marc ULg

in STAPS : Revue Internationale des Sciences du Sport et de l'Education Physique (1991), 24

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See detailTranscription des usages du sol par le modèle de potentiel
Binard, Marc ULg; Donnay, Jean-Paul ULg; Nadasdi, Istvan

in Mappemonde (1991), 3

The paper deals with an application of the potential model to the urban environment of the city of Luxembourg. Specific loadings are assigned to urban and vegetable land uses, identified according to a ... [more ▼]

The paper deals with an application of the potential model to the urban environment of the city of Luxembourg. Specific loadings are assigned to urban and vegetable land uses, identified according to a supervised classification of remote sensed SPOT data. Then, the two sets of loadings are separately submitted to potential models and the resulting images are merged by chromatic synthesis to obtain a map of the residential environment of the town. [less ▲]

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See detailPAF receptor and cache-oreilles effect. Simple PAF antagonists
Lamotte-Brasseur, Josette; Heymans, Françoise; Dive, Georges ULg et al

in Lipids (1991), 26(12), 1167-1171

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See detailAsymmetric Diels-Alder reactions of a nitroso compound derived from D-bornane-10,2-sultam
Gouverneur, Véronique; Dive, Georges ULg; Ghosez, Léon

in Tetrahedron, Asymmetry (1991), 2(12), 1173-1176

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See detailL'éducation des jeunes enfants au seuil de l'ère technologique
de Landsheere, Gilbert ULg

in Communication et Langages (1991), (89), 31-36

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See detailMultihormonal regulation of the human prolactin gene expression from 5000 bp of its upstream sequence
Berwaer, M.; Monget, P.; Peers, Bernard ULg et al

in Molecular & Cellular Endocrinology (1991), 80(1-3), 53-64

We have cloned DNA sequences extending up to 6000 bp upstream from the first exon of the human prolactin (hPRL) gene. 5000 bp of these upstream sequences were fused to a CAT reporter gene and shown to ... [more ▼]

We have cloned DNA sequences extending up to 6000 bp upstream from the first exon of the human prolactin (hPRL) gene. 5000 bp of these upstream sequences were fused to a CAT reporter gene and shown to provide tissue-specific transient expression in rat pituitary GH3 cells. Multihormonal response was found in this transient expression assay, leading to significant 2- to 5-fold induction by addition of 8-chlorophenylthio-cyclic AMP, thyrotropin-releasing hormone, epidermal growth factor, basic fibroblast growth factor, phorbol myristate acetate, a calcium channel agonist (Bay K-8644) and triiodothyronine. A 3-fold inhibition was observed in the presence of the glucocorticoid agonist dexamethasone. The sequence of the hPRL promoter was determined up to coordinate -3470. Computer similarity search between the rat and human sequences showed two highly conserved regions corresponding to the proximal and distal tissue specific enhancers described in both PRL promoters. [less ▲]

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See detailPotentialités physiques et stratégies de mise en valeur dans le Haut Bassin du fleuve Gambie (Cas d'étude : le village de Téliré)
Henquin, Bruno; Avril, Claire; Bock, Laurent ULg et al

in Annales de Gembloux (1991), 4ème trimestre(4), 277-291

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See detailPeut-on utiliser l'auto-estimation à l'école ? Qu'en aurait dit DESCARTES ?
Leclercq, Dieudonné ULg

in Enjeux : Revue de Formation Continuée et de Didactique du Français (1991), 22

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See detailBranchial Arch Anomalies in Trisomy 18
Verloes, Alain ULg; Seret, N.; Bernier, V. et al

in Annales de Génétique (1991), 34(1), 22-4

The authors report two newborns and one fetus with trisomy 18, who have severe anomalies of the first branchial arch: extreme microtia with imperforate external meatus in two cases, and hemifacial ... [more ▼]

The authors report two newborns and one fetus with trisomy 18, who have severe anomalies of the first branchial arch: extreme microtia with imperforate external meatus in two cases, and hemifacial microsomia in a third one. Those cases point to the huge phenotypic variability of the trisomy 18. [less ▲]

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See detailConformational analysis of beta and gamma lactam antibiotics
Lamotte, Josette ULg; Dive, Georges ULg; Ghuysen, Jean-Marie ULg

in European Journal of Medicinal Chemistry (1991), 26(1), 43-50

Geometry optimization, superimposition searches and conformational analysis carried on several lactam antibiotics show that reactivity with the active-site serine penicillin-binding proteins is related to ... [more ▼]

Geometry optimization, superimposition searches and conformational analysis carried on several lactam antibiotics show that reactivity with the active-site serine penicillin-binding proteins is related to a particular spatial disposition of 2 flanking functional groups - namely a C = O or C-OH on 1 side and a carboxylate on the other - with respect to the central scissile amide bond. Such a binding entity is found in one of the most stable conformers of the tripeptide diacetyl-L-Lys-D-Ala-D-Ala conferring substrate activity, and in benzylpenicillin, cephapyrin, thienamycin, gamma-lactam, the 6-spiro-epoxypenicillin S and in one epimer of lactivicin, conferring inactivating potency. This binding entity generates a particular electronic distribution and the fact that it is conserved in compounds belonging to very different chemical families strongly suggests that it is an important feature required for enzyme recognition. [less ▲]

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See detailSurgical Management of Left Atrial Myxoma
RADERMECKER, Marc ULg; LAVIGNE, Jean-Paul ULg; Defraigne, Jean-Olivier ULg et al

in Acta Chirurgica Belgica (1991), 91(1), 27-31

Although rare, left atrial myxoma is an entity from anatomopathological and clinical aspects. Seven cases of left atrial myxoma operated on the last ten years were reviewed. We also report a rare ... [more ▼]

Although rare, left atrial myxoma is an entity from anatomopathological and clinical aspects. Seven cases of left atrial myxoma operated on the last ten years were reviewed. We also report a rare presentation of right atrial myxoma, where the tumor was responsible of a dramatic hemodynamic shock due to right ventricular inflow obstruction. Six patients were female, with a mean age of 53 years. All but one consulted for exertional dyspnea of recent onset. Two patients with left atrial myxoma and the patient with right atrial myxoma had experienced embolism. Five patients had systemic symptoms. Echocardiography was the most performant diagnostic procedure. All but the patient with right atrial myxoma were operated by the left atrial access. The mitral valve was replaced in two patients. The histological aspect of this benign tumor is illustrated but the lack of frank border between the tumor and the myocardium is emphasized. We conclude that surgical management is primordial. We give anatomopathological rationale for resection of implantation pedicle. The operative mortality was nul in this series of 8 patients; major improvement of cardiac status was constant. No recurrence has occurred during the follow-up period. [less ▲]

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See detailOn the characterization of some terpenes from Renealmia alpinia Rott. (Maas) oleoresin.
Lognay, Georges ULg; Marlier, M.; Severin, M. et al

in Flavour and Fragrance Journal (1991), 6(1),

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See detailStructure du méthyl-4 pipérazinyl-1)-10 pyrido[4,3-b][1,4]benzothiazépine
Dupont, L.; Dideberg, O.; Liégeois, Jean-François ULg et al

in Acta Crystallographica Section C-Crystal Structure Communications (1991), C47

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See detailVariations de l'antigéniémie dans l'infection persistante des bovins par le virus de la diarrhée virale bovine (BVD)
Waxweiler, S.; Mignon, Bernard ULg; Boulanger, D. et al

in Annales de Médecine Vétérinaire (1991), 135

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See detailStructures du 11-formyl-5-(4-méthylpipérazin-1-yl)-11H-pyrido[2,3b][1,5]benzodiazépine et du 6-(4-méthylpipérazin-1-yl)-11-méthyl-11H-pyrido[2,3-b][1,4]benzodiazépine
Dupont, L.; Englebert, S.; Dideberg, O. et al

in Acta Crystallographica Section C-Crystal Structure Communications (1991), C47

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See detailExperimental study of the non-linear behaviour of beam-to-column composite joints
Altmann, R.; Maquoi, René ULg; Jaspart, Jean-Pierre ULg

in Journal of Constructional Steel Research (1991), 18

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See detailIncreased expression of the laminin receptor in human colon cancer.
Cioce, V.; Castronovo, Vincenzo ULg; Shmookler, B. M. et al

in Journal of the National Cancer Institute (1991), 83(1), 29-36

It has been proposed that among the various cell-surface proteins capable of interacting with laminin, the 67-kd high-affinity laminin receptor plays a crucial role during tumor invasion and metastasis ... [more ▼]

It has been proposed that among the various cell-surface proteins capable of interacting with laminin, the 67-kd high-affinity laminin receptor plays a crucial role during tumor invasion and metastasis. In this study, the expression of laminin-receptor-precursor messenger RNA (mRNA) and 67-kd protein was analyzed in human colon adenocarcinoma. In 22 of 23 patients with colon cancer, we found a 2- to 23-fold increase in levels of laminin-receptor-precursor mRNA in the cancer tissues compared with those in matched normal adjacent colonic mucosa. In 10 of 11 cases studied, the level of 67-kd laminin receptor, detected by affinity-purified anti-laminin-receptor synthetic peptide antibodies on immunoblots of matched tumor and normal tissue extracts, was higher in the colon carcinoma tissue. Immunodetection of laminin receptor in tissue sections using anti-laminin-receptor-peptide antibodies confirmed that the increased expression of laminin receptor was specifically associated with the cancer cells. In a series of 72 paraffin sections of colon lesions, we observed a correlation between the expression of the laminin receptor and the Dukes' classification. Our observations indicate that increased expression of laminin-receptor-precursor mRNA is associated with enhanced levels of the 67-kd laminin receptor as well as with the invasive phenotype of colon carcinoma. Detection of this metastasis-associated gene product may be a valuable adjunct in the evaluation of human colon cancer. [less ▲]

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See detailIntérêt de la différence aterio-veineuse en O2 dans l'approche thérapeutique de l'hypertension intracrânienne post-traumatique
Franssen, Christine ULg; Hans, Pol ULg; Deprez, Josette ULg et al

in Agressologie : Revue Internationale de Physio-Biologie et de Pharmacologie Appliquées aux Effets de l'Agression (1991), 32(6-7), 366-368

Elevated intracranial pressure (ICP) is undoubtedly a determinant factor of outcome in severe head injured patient. Until now, medical treatment of elevated ICP in diffuse brain lesions consisted of ... [more ▼]

Elevated intracranial pressure (ICP) is undoubtedly a determinant factor of outcome in severe head injured patient. Until now, medical treatment of elevated ICP in diffuse brain lesions consisted of hyperventilation, CSF drainage, mannitol and barbiturates without accurate selection criteria. In fact, in comatose patients, the cerebral blood flow (CBF) can vary independently of the cerebral metabolic rate of oxygen (CMRO2) which is typically reduced. The venous oxygen saturation (SjO2) measured in the jugular bulb and the arterial-jugular oxygen difference (ajDO2) can be used for more appropriately selecting therapeutic measures. According to the following equation: CMRO2 = CBF x ajDO2, the measurement of the changes in ajDO2 might serve as an indicator of CBF adequacy, out of the presence of cerebral ischemia. A decreased ajDO2 suggests that CBF is excessive for cerebral metabolic requirements and an elevated ajDO2 indicates a decreased CBF. Consequently, treatment of elevated ICP in the presence of a low ajDO2 should be more oriented towards moderate hyperventilation and administration of metabolic depressive agents with maintenance of normal arterial blood pressure. Conversely, in case of high ajDO2, ICP control should aim to increase CBF by maintaining normocapnia, improving hemodynamic status or reducing extravascular volume accordingly. [less ▲]

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See detailEfficacité productive et rendements d'échelle dans les banques belges
Gathon, Henry-Jean ULg; Grosjean, Fabienne

in Cahiers Economiques de Bruxelles (1991), 130(Summer), 145-160

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See detailImprovement of insulin-induced glucose disposal in obese patients with NIDDM after 1-wk treatment with d-fenfluramine.
Scheen, André ULg; Paolisso, G.; Salvatore, T. et al

in Diabetes Care (1991), 14(4), 325-32

OBJECTIVE: To study the short-term effects of the serotoninergic anorectic drug d-fenfluramine on insulin-induced glucose disposal. RESEARCH DESIGN AND METHODS: A randomized double-blind placebo ... [more ▼]

OBJECTIVE: To study the short-term effects of the serotoninergic anorectic drug d-fenfluramine on insulin-induced glucose disposal. RESEARCH DESIGN AND METHODS: A randomized double-blind placebo-controlled crossover trial with 1-wk treatment periods (2 x 15 mg/day d-fenfluramine) was conducted. Twenty obese subjects, 10 with normal oral glucose tolerance and 10 with non-insulin-dependent diabetes mellitus (NIDDM), were all treated with a weight-maintaining diet. Euglycemic-hyperinsulinemic glucose clamps with measurement of glucose kinetics with D-[3-3H]glucose were performed at either two (patients without NIDDM, 0.05 and 0.10 U.kg-1.h-1) or three (patients with NIDDM, 0.05, 0.10, and 0.50 U.kg-1.h-1) insulin delivery rates. RESULTS: In the nondiabetic subjects, no significant changes in any metabolic or hormonal parameter were measured in the basal state or during the clamp despite a slight reduction in body weight (-1.2 +/- 0.5 kg, P less than 0.05). In the diabetic patients, no significant changes in body weight or basal plasma insulin levels were observed, but fasting blood glucose levels (8.0 +/- 0.8 vs. 9.4 +/- 1.1 mM, P less than 0.005) and plasma free fatty acid concentrations (1150 +/- 227 vs. 1640 +/- 184 microM, P less than 0.05) were significantly reduced after d-fenfluramine compared with placebo. During the clamp, insulin metabolic clearance rate (MCR) was similar after both placebo and d-fenfluramine; endogenous (hepatic) glucose production was similarly and almost completely suppressed, whereas glucose disposal was remarkably enhanced after d-fenfluramine (average increase of glucose MCR 35 +/- 12%, P less than 0.02). CONCLUSIONS: Whatever the mechanism(s) involved, a 1-wk treatment with d-fenfluramine induces better blood glucose control and improves insulin sensitivity in obese patients with NIDDM independent of significant weight reduction; this last effect is not present in obese subjects with normal oral glucose tolerance. [less ▲]

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See detailLe culte de la Persuasion. Peithô en Grèce ancienne
Pirenne-Delforge, Vinciane ULg

in Revue de l'Histoire des Religions (1991), 208

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See detailEtude régionale par éléments finis d'une nappe libre située dans les craies du Crétacé en Belgique
Dassargues, Alain ULg; Monjoie, Albéric ULg; Lambert, J. M. et al

in Revue des Sciences de l'Eau = Journal of Water Science (1991), 4

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See detailIdentité sociale et fédéralisme
Jacquemain, Marc ULg; Doutrelepont, René; Vandekeere, Michel

in Fédéralisme - Régionalisme (1991), 2

Based on survey results, the paper shows that feelings of belonging go together witht different attitude toward federalism.

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See detailRevision of the Structure of Strychnochromine
Quetin-Leclercq, Joëlle; Angenot, Luc ULg; Dupont, Léon et al

in Tetrahedron Letters (1991), 32(34), 4295-4298

The structure of strychnochromine, an unusual alkaloid isolated from a new batch of the root bark of Strychnos gossweileri has been revised . To confirm the indoline structure ( proposed in 1988) and to ... [more ▼]

The structure of strychnochromine, an unusual alkaloid isolated from a new batch of the root bark of Strychnos gossweileri has been revised . To confirm the indoline structure ( proposed in 1988) and to establish the stereochemistry of the compound extensive 2D-NMR experiments were carried out. The COSY experiments mostly confirmed the previous observations but the COLOC maps did not fit the first proposed structure!The problem was solved by single-crystal X-ray analysis of the p-bromobenzoyl ester of strychnochromine. The new structure, with its tetrahydroquinoline ring, is very unusual in Strychnos species but the formation of quinolines from indole alkaloids has already mentioned in some other plants ( Cinchona, Alstonia, Hunteria..). [less ▲]

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See detailUne note de l'Essai sur l'origine des langues de Jean-Jacques Rousseau. Analyse textuelle
Tilkin, Françoise ULg

in Espace pour un humanisme européen (1991), 8

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See detailAtlas des mammifères sauvages de Wallonie (suite). Le mouflon, Ovis ammon
Anciaux, Marie Rose; Libois, Roland ULg

in Cahiers d'Ethologie (1991), 11(1), 91-102

Distribution in Belgium, origin, introduction, evolution of the Belgian population, habitat,legal status,

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See detailLa phytotechnie du triticale.
Bodson, Bernard ULg

in Bulletin des Recherches Agronomiques de Gembloux (1991), 26(4), 507-518

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See detailStructures du cyclohexyl-1[(cycloheptylamino-4 pyridyl-3)sulfonyl]-3 urée et de l'hydrogénonitrate du cyclohexyl-1[(cyclooctylamino-4 pyridyl-3)sulfonyl]-3 urée
Dupont, L.; Dideberg, O.; Masereel, B. et al

in Acta Crystallographica (1991), C47

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See detailLes restes anthracologiques du Titelberg.
Gerrienne, Philippe ULg; Fairon-Demaret, Muriel ULg

in Bulletin de la Société Préhistorique du Luxembourg (1991), 13

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See detailLe traitement pharmacologique de l'obésité.
PAQUOT, Nicolas ULg; SCHEEN, André ULg; Lefebvre, P.

in Médecine et Hygiène (1991), 49

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See detailEffects of specific dopaminergic agonists and antagonists in the open-field test.
Bruhwyler, J.; Chleide, E.; Liégeois, Jean-François ULg et al

in Pharmacology, Biochemistry & Behavior (1991), 39(2), 367-71

It has been found that dopaminergic transmission could be involved in some aspects of anxiety. The present study aims to explore this hypothesis further, using specific DA1 (SKF 38393) and DA2 ... [more ▼]

It has been found that dopaminergic transmission could be involved in some aspects of anxiety. The present study aims to explore this hypothesis further, using specific DA1 (SKF 38393) and DA2 (bromocriptine) agonists or DA1 (SCH 23390), and DA2 (zetidoline) antagonists in the open-field test. The results confirm previous studies indicating that DA1 and DA2 agonists predominantly increase locomotor activity, while DA1 and DA2 antagonists predominantly decrease it. However, at low doses, the four drugs increase the peripheral ambulation score significantly and, with the exception of zetidoline, also increase the central ambulation score. The observations made with zetidoline confirm the hypothesis that a specific presynaptic DA2 antagonism could be determinant for the disinhibitory effects of low doses of neuroleptics. A collateral action on 5HT transmission is also suggested to explain an hypothetic anxiolytic action of DA agonists and SCH 23390 at lower doses. [less ▲]

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See detailtracheal agenesis: an unusual cause of neonatal respiratory distress
Battisti, Oreste ULg

in Pediatric Pulmonology (1991), 150

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See detailUltrastructural demonstration of histamine in human enterochromaffin like cell granules.
Delwaide, Jean ULg; Vivario, M.; Belaiche, Jacques ULg et al

in Gut (1991), 32(7), 834

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See detailApplication of the GHER 3D general circulation model to the Western Mediterranean
Beckers, Jean-Marie ULg

in Journal of Marine Systems (1991), 1(4), 315-332

The GHER 3D k− OGCM is briefly described and its application to the Western Mediterranean Sea's specifities is discussed. The simulation of the Western Mediterranean General Circulation in typical winter ... [more ▼]

The GHER 3D k− OGCM is briefly described and its application to the Western Mediterranean Sea's specifities is discussed. The simulation of the Western Mediterranean General Circulation in typical winter conditions shows that the model is able to reproduce the main physical processes and the main trends of the general circulation. However, the detailed current patterns appears too sensitive to the choice of initial conditions and a better knowledge of these conditions is required for further routine forecasts. [less ▲]

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See detailMalignant cell attachment to endothelium of ex vivo perfused human umbilical vein. Modulation by platelets, plasma and fibronectin.
Lewalle, J. M.; Castronovo, Vincenzo ULg; Goffinet, G. et al

in Thrombosis Research (1991), 62(4), 287-98

The success of blood-born metastatic spread depends upon a key event: the tumor cell arrest and attachment to the host organ vasculature. In the present study, we have investigated interactions between ... [more ▼]

The success of blood-born metastatic spread depends upon a key event: the tumor cell arrest and attachment to the host organ vasculature. In the present study, we have investigated interactions between several normal and cancer cell lines and vascular endothelium in a model of ex vivo perfusion of human umbilical vein. In this system, hydrodynamic parameters are monitored and endothelial cells are kept in their original environment known to modulate their phenotype. Metastatic tumor cell adhesion to the perfused endothelium was found to be significantly higher than that of normal cells tested. Platelets and soluble plasma factors including fibronectin promoted tumor cell arrest and adhesion to endothelium. Altogether our results indicate that the ex vivo perfusion of human umbilical vein allows the study of the interactions between malignant tumor cells, circulating plasma or blood cells and the endothelium during blood-born metastatic spread. [less ▲]

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See detailNature of the late potentials and F-ratio values in dogs
Poncelet, Luc; Balligand, Marc ULg

in Research in Veterinary Science (1991)

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See detailPredictive value and rate of change of blood pressure throughout adolescence : a Belgian prospective study
Saint-Remy, Annie ULg; Rorive, Georges ULg

in Journal of Hypertension (1991), 9(suppl 6), 266-267

We performed a prospective study on the natural course of blood pressure throughout adolescence. The major goals were to assess the predictive value of a high blood pressure level at the age of 12 years ... [more ▼]

We performed a prospective study on the natural course of blood pressure throughout adolescence. The major goals were to assess the predictive value of a high blood pressure level at the age of 12 years and the feasibilty of developing a screening test for the early detection of young subjects at risk of developing chronic hypertension. By measuring the relationship between the initial level and subsequent changes in blood pressure, we looked for a phenomenon previously demonstrated in adults. [less ▲]

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See detailL'approvisionnement en eau des porcs: un élément à ne pas négliger
Vandenheede, Marc ULg; Nicks, Baudouin ULg

in Annales de Médecine Vétérinaire (1991), 135(2), 123-128

Water requirements are determined according to the amounts of water stored in the tissues and lost by the animal. This review summarises estimates of water losses by faeces, urine, milk and by evaporation ... [more ▼]

Water requirements are determined according to the amounts of water stored in the tissues and lost by the animal. This review summarises estimates of water losses by faeces, urine, milk and by evaporation from the skin and respiratory tract. A description of the main pig drinkers is given with recommendations about the number, siting, fixing height and flow rate. Drinking water quality guidelines are also given. [less ▲]

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See detailImmunohistochemical expression of epidermal growth factor receptors in nuclei of a subpopulation of keratinocytes and sweat gland cells.
Pierard, Claudine ULg; Colige, Alain ULg; Arrese Estrada, Jorge ULg et al

in Dermatologica (1991), 183(1), 7-9

We have raised a polyclonal antibody to the 170-kD epidermal growth factor receptor. We found an intercellular pattern of immunoreactivity in the epidermis as well as a positivity of the cytoplasm of ... [more ▼]

We have raised a polyclonal antibody to the 170-kD epidermal growth factor receptor. We found an intercellular pattern of immunoreactivity in the epidermis as well as a positivity of the cytoplasm of keratinocytes and eccrine secretory cells. In some samples, a nuclear labelling was evidenced in these type of cells. There is a close resemblance in the topographical distribution of these cells with nuclear labelling and those synthesizing DNA under phytohaemagglutinin stimulation. [less ▲]

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See detailGeotechnical properties of the Quaternary sediments in Shanghai
Dassargues, Alain ULg; Biver, Pierre; Monjoie, Albéric ULg

in Engineering Geology (1991), 31(1), 71-90

The subsoil of Shanghai is composed of Quaternary sediments of the Yangtse River estuary. The center of the city has undergone a man-induced subsidence due to water pumping in the confined multi-aquifer ... [more ▼]

The subsoil of Shanghai is composed of Quaternary sediments of the Yangtse River estuary. The center of the city has undergone a man-induced subsidence due to water pumping in the confined multi-aquifer system located in these sediments. Together with a sedimentological study of the post-Pleistocene conditions of deposition and accumulation, an accurate geotechnical study has been completed on the basis of all the available data from identification, oedometer and triaxial tests. Size analysis, X-ray analysis, compressibility characteristics, void ratio, preconsolidation pressures, permeabilities are considered taking into account the sedimentary sequence. Some relations between parameters are deduced and the hydrodynamic parameters are related to compaction parameters in order to predict their coupled and non-linear effects on the subsidence phenomena. Conclusions consist in the determination of the zones where different sensitivities to compaction are evaluated in these Quaternary formations. [less ▲]

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See detailGeneration of bovine multisite haplotypes using random cosmids
Steele, M.; Georges, Michel ULg

in Genomics (1991), 10

One hundred ten random cosmids were used to probe Southern blots of DNA from nine unrelated cattle digested with 12 restriction enzymes. Although only one-third of the expected fragments were explored, 85 ... [more ▼]

One hundred ten random cosmids were used to probe Southern blots of DNA from nine unrelated cattle digested with 12 restriction enzymes. Although only one-third of the expected fragments were explored, 85% of the cosmids revealed at least one polymorphism. The mean heterozygosity of the generated haplotypes was estimated at 51.9%. A surprisingly high proportion of polymorphisms (approximately 25%) was attributed to insertion-deletion events, compensating for the lower level of nucleotide diversity observed in cattle (pi approximately 0.0007) compared to that in human. The mutation rate at cytosines in the CpG dinucleotide was estimated approximately 10 times higher than that at other nucleotides. When used in linkage studies, the generated markers should cover approximately 50% of the bovine genome. [less ▲]

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See detailA new Theory for frequencies computation of overhead lines with bundle conductors.
dubois, Hervé; Dal Maso, Filipo; Lilien, Jean-Louis ULg

in Bulletin Scientifique de l'Association des Ingénieurs Electriciens sortis de l'Institut Electrotechnique Montefiore (1991), 1

Vertical, horizontal and torsional mechanical frequencies are studies for both single and bundle conductor lines. Models and tests are presented. These data are of particular impact on galloping ... [more ▼]

Vertical, horizontal and torsional mechanical frequencies are studies for both single and bundle conductor lines. Models and tests are presented. These data are of particular impact on galloping phenomenon. [less ▲]

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See detailBlood pressure, the prevalence of cardiovascular diseases, and exposure to cadmium : a population study
Staessen, J.; Amery, A.; Bernard, A. et al

in American Journal of Epidemiology (1991), 134(3), 257-267

In a population study conducted from 1985 to 1989 in Belgium, the authors investigated whether exposure to cadmium is associated with blood pressure elevation and with an increased prevalence of ... [more ▼]

In a population study conducted from 1985 to 1989 in Belgium, the authors investigated whether exposure to cadmium is associated with blood pressure elevation and with an increased prevalence of cardiovascular diseases. The participants, aged 20-88 years, constituted a random sample of the households living in two low exposure areas (n = 803) and two high exposure areas (n = 1,283). For each exposure level, a rural and an urban district were selected. The cadmium levels in blood (8.5 vs. 11.0 nmol/liter) and urine (7.2 vs. 8.7 nmol/24 hours) were significantly (p less than 0.001) raised in the two high exposure areas compared with the two low exposure areas (p less than 0.001). Systolic pressure was similar in both rural areas, but in the urban area with high exposure systolic pressure was 5 mmHg (p less than 0.001) higher than in the control town. Diastolic pressure was similar in the four districts and the same was true for the prevalence of hypertension and of other cardiovascular diseases. Adjustment of systolic pressure for blood and urinary cadmium did not remove the difference in systolic pressure between both urban areas, suggesting that it was not related to the cadmium burden on the environment. Further analyses in individual subjects showed that neither blood pressure nor the presence of cardiovascular diseases were significantly and positively correlated with blood and urinary cadmium. Thus, the present population study did not confirm the hypothesis that increased exposure of the population to cadmium is associated with blood pressure elevation and with a higher prevalence of cardiovascular diseases. [less ▲]

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See detailA Saint-Trond, un import-export de reliques des Onze Mille Vierges dans la seconde moitié du XIIIe siècle
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (1991), t. XII, n° 253

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See detailParticularités physiologiques et physiopathologiques de la fonction pulmonaire des bovins
Lekeux, Pierre ULg

in Point Vétérinaire (1991), 23(140), 793-799

This review détails the specific factors of respiratory function in cattle, the purpose being to understand cattle's great sensitivity te respiratory conditions, to be able to breed them for an optimal ... [more ▼]

This review détails the specific factors of respiratory function in cattle, the purpose being to understand cattle's great sensitivity te respiratory conditions, to be able to breed them for an optimal functioning of their respiratory metabolism, and to adapt the prevention of respiratory conditions to the physiological specificity of this species. For each main respiratory syndrome, the consequences on the vital functions, and particularly for the respiratory function, are analyzed (9 tables, 33 references). [less ▲]

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See detailMolecular inhibition of cancer cell invasion and metastasis.
Castronovo, Vincenzo ULg; Stetler-Stevenson, W. G.; Sobel, M. E. et al

in Princess Takamatsu Symposia (1991), 22

A group of coordinated cellular processes, not just one gene product, is responsible for invasion and metastasis, the most life-threatening aspect of cancer. It is now recognized that negative factors may ... [more ▼]

A group of coordinated cellular processes, not just one gene product, is responsible for invasion and metastasis, the most life-threatening aspect of cancer. It is now recognized that negative factors may be just as important as positive elements. Genetic changes causing an imbalance of growth regulation lead to uncontrolled proliferation necessary for both primary tumor and metastasis expansion. However, unrestrained growth does not, by itself, cause invasion and metastasis. This phenotype may require additional genetic changes. Thus, tumorigenicity and metastatic potential have both overlapping and separate features. Invasion and metastasis can be facilitated by proteins which stimulate tumor cell attachment to host cellular or extracellular matrix determinants, tumor cell proteolysis of host barriers, such as the basement membrane, tumor cell locomotion, and tumor cell colony formation in the target organ for metastasis. Facilitory proteins may act at many levels both intracellularly and extracellularly, but are counterbalanced by factors which can block their production, regulation or action. A common theme has emerged: in addition to loss of growth control, an imbalanced regulation of adhesion, proteolysis, and motility appears to be required for invasion and metastasis. Re-equilibrating the expression of the genes involved in these tumor invasion related events could potentially constitute the basis for new anti-cancer therapeutic strategies. [less ▲]

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See detailMétabolisme et toxicité pulmonaires des pesticides chez les mammifères
Delaunois, A.; Gustin, Pascal ULg; Ansay, M.

in Annales de Médecine Vétérinaire (1991), 135

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See detailCV 205-502 : Een niewe lang-werkende dopamine-agonist voor de behandeling van hyperprolactinemie.
Verhelst, J.; Abs, R.; Beckers, Albert ULg et al

in Tijdschrift voor Geneeskunde (1991)

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See detailImmunocytochemical evidence for production of luteinizing hormone and follicle-stimulating hormone in separate cells in the bovine.
Bastings, E.; Beckers, Albert ULg; Reznik, Michel ULg et al

in Biology of Reproduction (1991), 45(5), 788-96

In all mammalian females, follicular growth and maturation are essentially dependent on the pituitary gonadotropins, FSH and LH. These glycoprotein hormones have many similarities, but their action, based ... [more ▼]

In all mammalian females, follicular growth and maturation are essentially dependent on the pituitary gonadotropins, FSH and LH. These glycoprotein hormones have many similarities, but their action, based on high affinity binding to specific membrane receptors, are quite different. The purpose of this study was to perform a sensitive localization of FSH and LH in secretory granules of gonadotrophs using highly specific antisera. This morphological study included light microscopy (PAP) and electron microscopy (immunogold single and double labeling) procedures. Histologically, approximatively 11.5% of cells were positive for LH, whereas only 5.4% of cells were positive for FSH. With the electron microscope, single labeling allowed identification of morphologically distinct LH-containing cells and FSH-containing cells. Double immunostaining confirmed that no cells contained both hormones. The finding that FSH and LH are produced in separate pituitary cells is in agreement with recent studies that have suggested a specific role and regulatory process for gonadotropins in the bovine species. [less ▲]

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See detailEtude sur les fluctuations de température relevées dans 5 locaux de post-sevrage en porcheries
Debliquy, P.; Nicks, Baudouin ULg; Canart, Bernard et al

in Annales de Médecine Vétérinaire (1991), 135(7), 511-515

Temperature was measured during 7 days, every 20 minutes, in 5 rooms of 3 weaning houses. All the rooms were artificially ventilated but they differed by their stocking rate which ranged from 0.5 to 2.3 ... [more ▼]

Temperature was measured during 7 days, every 20 minutes, in 5 rooms of 3 weaning houses. All the rooms were artificially ventilated but they differed by their stocking rate which ranged from 0.5 to 2.3 m3 per animal. The mean inside and outside temperatures were 23 +/- 3-degrees-C and 13 +/- 8-degrees-C. The outside temperature range was reduced, on average, by 60% either on a daily or a weekly basis. In terms of absolute values, the daily range varied from 2 to 80-degrees-C according to the room. An accurate estimate of the mean daily temperatures was already provided by just the minimum and maximum records. Only one measurement per hour was needed to assess the daily variations. Advices related to the stability of temperature in the rooms have to be expressed in relative terms rather than in absolute values. A 60% reduction of the outside temperature range can be suggested as a reference. [less ▲]

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See detailThe Effect of Shape, Age and Extension on the Compliance of Equine Tracheal Segments
Art, Tatiana ULg; Lekeux, Pierre ULg

in Veterinary Research Communications (1991), 15(2), 135-146

The influence of the age and weight of the animal as well as that of the extension and the shape of the trachea on the mechanical properties of the cervical trachea was studied in 33 isolated tracheal ... [more ▼]

The influence of the age and weight of the animal as well as that of the extension and the shape of the trachea on the mechanical properties of the cervical trachea was studied in 33 isolated tracheal segments obtained from freshly slaughtered horses. The relationship between intraluminal pressure and volume was determined in the cervical tracheal segments positioned firstly under normal longitudinal tension and secondly in hyperextension. At the same time, changes in the area of the cross-section of the lumen (X-SA) at the midpoint of the segment were measured using photographs obtained by slit-lamp transillumination and endoscopy. The sagittal (DS) and transverse (DT) diameters were determined for each segment and the DT/DS ratio was calculated to give an estimate of the shape of the X-SA. The results showed that (i) neither the age nor the weight of the horses had any influence on the mechanical properties of the trachea; (ii) extension decreases the compressibility of the tracheal segment in vitro; (iii) there is a wide variation in the extrathoracic tracheal X-SA shape in horses; and (iv) the shape of the X-SA has a major influence on the mechanical properties of the trachea. It was concluded that (i) hyperextension of the neck will partly facilitate respiration at high levels of ventilation by elongating the trachea and by decreasing its collapsibility; and (ii) the tracheal collapse which may occur during high levels of ventilation will be more or less important depending on the individual X-SA shape. [less ▲]

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See detailCOST 93
Bera, François ULg

in VITA Magazine (1991), (88),

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See detailLe financement des communautés et des régions dans la perspective du Fiscal Federalism
Jurion, Bernard ULg

in Revue du Centre d'Etude du Fédéralisme (1991)

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See detailBlowout of Carotid Venous Patch Angioplasty
VAN DAMME, Hendrik ULg; GRENADE, Thierry ULg; CREEMERS, Etienne ULg et al

in Annals of Vascular Surgery (1991), 5(6), 542-5

Two cases of vein patch blowout were observed five and seven days after carotid bifurcation endarterectomy with patch angioplasty. Both patients died in spite of emergency reoperation. One patient ... [more ▼]

Two cases of vein patch blowout were observed five and seven days after carotid bifurcation endarterectomy with patch angioplasty. Both patients died in spite of emergency reoperation. One patient developed respiratory failure with subsequent fatal cardiac arrest seven days after reoperation; the other died of extensive hemispheric infarction on the fifth postoperative day. At reoperation both ruptures were found to be located in the middle of the patch whereas the suture lines were intact. Both patients were hypertensive. In the first case, an accessory saphenous vein retrieved from the calf had been the only venous material available for the patch, while the other patient had varicose veins in the contralateral leg. Pathology revealed central transmural tissue necrosis in one of the disrupted patches. A review of the literature regarding morphologic alterations of free vein grafts placed within the arterial circulation as well as hemodynamics in patched arterial segments may provide additional insight as to the inherent benefits and risks of vein patch angioplasty after carotid endarterectomy. When considering vein patch angioplasty, particular attention should be directed to the gross aspect of the vein to be used as well as to any antecedent history of phlebitis. [less ▲]

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See detailThe amino acid (157-197) peptide segment of bovine leukemia virus p34tax encompass a leucine-rich globally neutral activation domain.
Willems, Luc ULg; Kettmann, Richard ULg; Burny, A.

in Oncogene (1991), 6(1), 159-63

The specific DNA-binding Gal4 amino-terminal portion (amino acids 1 to 147) was fused to protein segments of BLV transactivator p34tax and tested for its capacity to activate CAT-gene expression in ... [more ▼]

The specific DNA-binding Gal4 amino-terminal portion (amino acids 1 to 147) was fused to protein segments of BLV transactivator p34tax and tested for its capacity to activate CAT-gene expression in mammalian cells. The p34tax peptide segment 157 to 197 encompasses an activating region. The segment is approximately located in the middle of p34tax and is globally neutral (net charge zero). The tax (157-197) domain contains 24% of leucine residues, possibly involved in heterologous protein interactions. [less ▲]

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See detailFunctional domains of the 67-kDa laminin receptor precursor.
Castronovo, Vincenzo ULg; Taraboletti, G.; Sobel, M. E.

in Journal of Biological Chemistry (1991), 266(30), 20440-6

We report the characterization of two functional domains of the metastasis-associated 67-kDa laminin receptor (67-LR). Using synthetic peptides deduced from the cDNA sequence of the 37-kDa precursor of ... [more ▼]

We report the characterization of two functional domains of the metastasis-associated 67-kDa laminin receptor (67-LR). Using synthetic peptides deduced from the cDNA sequence of the 37-kDa precursor of the laminin receptor (37-LRP) as well as their corresponding affinity-purified polyclonal antibodies, we identified a unique laminin binding site as well as a membrane-associated domain of the receptor. In laminin dot blot and solid phase radioligand assays, a 20 amino acid synthetic peptide (IPCNNKGAHSVGLMWWMLAR, amino acid residues 161-180, designated peptide G) specifically bound to laminin with high affinity (Kd = 5 x 10(-8) M). Peptide G also specifically eluted the 67-LR from a laminin affinity column. Peptide G and laminin reacted with a 1:1 stoichiometry, suggesting that there is one recognition site on laminin for the peptide G domain. Immunofluorescence studies, performed on permeabilized and nonpermeabilized human A2058 melanoma cells using 10 different affinity-purified antibodies to distinct regions of the 37-LRP, identified an unusually short membrane-associated domain that was consistent with a computer predicted transmembrane domain (residues 86-101). Our data demonstrate for the first time that the 37-LRP has two functional domains consistent with the characteristics of the mature 67-LR. Furthermore, we propose peptide G as a potential inhibitor of tumor cell interactions with laminin. [less ▲]

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See detailRelations d'implémentation et transformations autorisées d'une spécification LOTOS
Leduc, Guy ULg

in Réseaux et Informatique Répartie (1991), 1

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See detailThe triviality of abortion in Greece
Naziri, Despina ULg

in Planned Parenthood in Europe = Planning Familial en Europe (1991), 20(2), 12-14

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See detailBelgian GIS Survey
Donnay, Jean-Paul ULg

in International GIS Sourcebook (1991), 1991-1992

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See detailLa formation des utilisateurs des bibliothèques. Une analyse réalisée par un groupe de l'ABD
Pochet, Bernard ULg

in Cahiers de la Documentation = Bladen voor Documentatie (1991), 45(2), 52-55

Cet article décrit la première enquête sur les formations organisées en Belgique, organisée par le groupe formation documentaire de l'ABD

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See detailFrom ethnobotanical uses of Strychnos henningsii to antiinflammatories, analgesics and antispasmodics
Tits, Monique ULg; Damas, Jacques ULg; Quetin-Leclercq, Joëlle et al

in Journal of Ethnopharmacology (1991), 34

Strychnos henningsii GILG is used in African traditional medicine for the treatment of various ailments, including rheumatism, gastrointestinal complaints, malaria and snake bites. Different preliminary ... [more ▼]

Strychnos henningsii GILG is used in African traditional medicine for the treatment of various ailments, including rheumatism, gastrointestinal complaints, malaria and snake bites. Different preliminary pharmacological experiments are described. The results show that some of the reported folk medicinal applications of S. henningsii can be at least partially explained by the presence of retuline-like alkaloids, whose use could lead to new antinociceptive (antiinflammatory and analgesic) and antispasmodic drugs. [less ▲]

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See detailVom Auffinden, Entziffern und Bewahren medizinisch-griechischer Papyrustexte
Marganne, Marie-Hélène ULg

in Waage (Die) (1991), 30(4), 136-143

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See detailA partial wetting model of aerobic tricklin filters
Crine, Michel ULg; Schlitz, Marc; Vandevenne, L.

in Chemical Engineering (1991), 46

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See detailChoix de l'habitat par le lynx européen et par sa proie principale, le chevreuil, dans un milieu de moyenne montagne (massif vosgien). 1. le cas du chevreuil
Anciaux, Marie Rose; Herrenschmidt, Véronique; Libois, Roland ULg

in Cahiers d'Ethologie (1991), 11(1), 51-66

Since 1983, 12 lynxes were reintroduced in the forests of Eastern France (massif des Vosges). They use their habitat in a patchy way. In this part, the authors deal with the ecological distridution of ... [more ▼]

Since 1983, 12 lynxes were reintroduced in the forests of Eastern France (massif des Vosges). They use their habitat in a patchy way. In this part, the authors deal with the ecological distridution of their main prey, the roe deer. It is to see to what extent the prey distribution can influence the predator habits. Roe deer observations were made during 4 consecutive springs and 3 consecutive summers and related with the environmental characteristics of the forest plots: physiographical factors, vegetation type, vegetation structure, relative cover of vegetation layer... Eight discriminant analysis were performed. They suggest that in our study area, the roe deer spatial distribution is mainly influenced by the altitude and the non deciduous tree cover. Other factors of less importance are the global tree cover and the understory (scrub layer). Moreover it seems that the presence of the red deer can also influence the roe deer habitat utilization. [less ▲]

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See detailTraitement des canaux carpiens modérés par le port nocturne d'une orthèse antébrachiale
WANG, François-Charles ULg; Gurne, Eric; FOIDART, Marguerite ULg et al

in Acta Physiotherapica et Rheumatologica Belgica (1991)

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See detailContribution a l'etude de l'influence de divers facteurs meteorologiques sur la production et la qualite des fibres chez le cotonnier Gossypium hirsutum L.
Mergeai, Guy ULg; Demol, J.

in Bulletin des Recherches Agronomiques de Gembloux (1991), 26(1),

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See detailUse of Peep in Management of Life-Threatening Status Asthmaticus: A Method for the Recovery of Appropriate Ventilation-Perfusion Ratio
Broux, R.; Foidart, G.; Mendes, P. et al

in Applied Cardiopulmonary Pathophysiology [=ACP] (1991), 4(1), 79-83

In 15 patients with asthma attack, evidence of the uneven distribution of air flow during controlled ventilation was obtained by detection of ventilatory asynchronism expressed by the incurvated profile ... [more ▼]

In 15 patients with asthma attack, evidence of the uneven distribution of air flow during controlled ventilation was obtained by detection of ventilatory asynchronism expressed by the incurvated profile of tracheal pressure waves associated with the repetitive interruptions of air flow. It was observed that low values of PEEP (mean: 5 +/- 2.5 cm H 2O) induced an increase in transbronchial pressure able to overcome ventilatory asynchronism. In these conditions, an appropriate ventilation-perfusion ratio was restored and improved gas exchanges as indicated by the mean increase of arterial PO 2 from 66.3 mmHg (+/- 2.57) to 96.89 mmHg (+/- 4.41) (p = 0.0005) associated with a mean decrease in arterial PCO 2 from 53.66 mmHg (+/- 2.71) to 42.07 mmHg (+/- 1.64) (p = 0.0005). Simultaneously hemoglobin oxygen saturation rose from 82.31% (+/- 1.97%) to 95.74% (+/- 0.5%). In our patients, such values of PEEP were not high enough to influence the pulmonary arterial circulation. The means of the pulmonary arterial pressures obtained before (syst.: 32.3; diast.: 15.1; mean: 22.00 mmHg) were quite the same (p greater than 0.2) as with PEEP (syst.: 32.00; diast.: 14.00; mean: 21.1 mmHg). The mean of the wedge pressure was found to be 8.3 (+/- 74 mmHg) prior to and 8.4 (+/- 0.68 mmHg) after PEEP (p greater than 0.3). Mean cardiac output rose slightly from 5.27 l/min (+/- 0.24) to 5.77 l/min (+/- 0.38) during PEEP (p = 0.01).(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailLes courants excito moteurs de basses fréquences. Détermination des fréquences optimales de tétanisation
Vanderthommen, Marc ULg; Kelleter, B.; Crielaard, Jean-Michel ULg

in Kinésitherapie, les Annales (1991), 18(10), 481-482

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See detailLes applications informatiques des années 90 et leurs implications sur les réseaux de communication
Leduc, Guy ULg

in Bulletin Scientifique de l'Association des Ingénieurs Electriciens sortis de l'Institut Electrotechnique Montefiore (1991), 2

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See detailThe Solar Abundance of Iron: a "Final" Word !
Biémont, Emile ULg; Baudoux, M.; Kurucz, R.L. et al

in Astronomy and Astrophysics (1991), 249

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See detailE1 Transitions of Astrophysical Interest in Neutral Oxygen
Hibbert, A.; Biémont, Emile ULg; Godefroid, M. et al

in Journal of Physics : B Atomic Molecular & Optical Physics (1991), 24

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See detailAxillounifemoral and Axillobifemoral Bypasses. Retrospective Study of 85 Cases
DUJARDIN, P.; LAVIGNE, Jean-Paul ULg; Defraigne, Jean-Olivier ULg et al

in Acta Chirurgica Belgica (1991), 91(4), 155-60

From 1983 to 1990, 65 axillobifemoral and 20 axillofemoral bypasses have been performed in 85 patients (77 men and 8 women), with a mean age of 69 +/- 9 years. Indications for surgery were: severe ... [more ▼]

From 1983 to 1990, 65 axillobifemoral and 20 axillofemoral bypasses have been performed in 85 patients (77 men and 8 women), with a mean age of 69 +/- 9 years. Indications for surgery were: severe aortoiliac occlusive disease (87%), sepsis of previous aortoiliac prosthesis, abdominal aorta aneurysm. Anatomic bypass was precluded for general (81%) or local (19%) conditions. In the last group, 9 patients have had previous laparotomy. Four patients presented with aortoenteric fistulas. Eighteen patients were operated on in emergency. The operative mortality was 12%, with 50% cardiac related deaths. Early primary patency was 98%. Early secondary patency was 100%. The mean follow-up is 28 +/- 15 months. The 3 years survival is 77%. The cumulative patency rates at 1 and 3 years are 89% and 76% respectively. Although axillobifemoral bypasses achieve poor long-term results when compared with aortoiliac bypasses, they can be considered in high risk patients. In this group of patients, the cumulative patency rate and the survival curves tend to be parallel. [less ▲]

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See detailDetermination of Thiamin and Its Phosphate Esters in Cultured Neurons and Astrocytes Using an Ion-Pair Reversed-Phase High-Performance Liquid Chromatographic Method
Bettendorff, Lucien ULg; Peeters, Maryline; Jouan, Caroline ULg et al

in Analytical Biochemistry (1991), 198(1), 52-59

A sensitive method, based on fluorescence detection, for the determination of thiamin derivatives after precolumn derivatization is described. The separation is achieved on a PRP-1 column using ion-pair ... [more ▼]

A sensitive method, based on fluorescence detection, for the determination of thiamin derivatives after precolumn derivatization is described. The separation is achieved on a PRP-1 column using ion-pair reversed-phase HPLC. This method is especially well adapted to the detection of thiamin triphosphate in complex mixtures such as tissue extracts. The detection limit for TTP is 50 fmol. The contents of thiamin derivatives were determined in primary cultures of rat cerebellar granule neurons and cerebral astrocytes. The amount of TTP is about five times higher in neurons than in astrocytes. Thus in rat brain TTP seems to be essentially associated with neurons and the intracellular concentration is estimated to be about 0.2 microM. Our results suggest the existence, in nerve cells, of specific regulatory mechanisms not related to the blood-brain barrier and responsible for the maintenance of thiamin homeostasis in brain. [less ▲]

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See detailL'inertie dans la maison individuelle : un gain de consommation énergétique ? Simulation et étude de cas
Nicolas, Jacques ULg; Andre, Philippe ULg; Rivez, Jean-François et al

in Revue générale de thermique (1991), 30(352), 240-249

L'inertie thermique dans le bâtiment est l'une des composantes les plus étudiées en architecture bioclimatique. Le principal intérêt d'une grande capacité thermique est d'assurer le confort, surtout ... [more ▼]

L'inertie thermique dans le bâtiment est l'une des composantes les plus étudiées en architecture bioclimatique. Le principal intérêt d'une grande capacité thermique est d'assurer le confort, surtout durant l'été, en déphasant les apports extérieurs et en atténuant les fluctuations de la température extérieure. L'inertie a beaucoup été étudiée dans des cellules-tests. La démarche décrite dans cet article se base sur une modélisation par le logiciel Suncode de différentes variantes d'une maison unifamiliale, représentative du parc de logement belge. Pour une maison purement passive, il s'avère que la consommation énergétique annuelle est beaucoup moins sensible à l'inertie qu'à l'isolation de la maison. Une saturation de consommation est même atteinte pour de grandes inerties. Pour assurer un déphasage supérieur à une journée, il conviendrait de favoriser un système actif de captation de l'énergie solaire qui serait directement injectée dans le milieu des parois épaisses de la maison. [less ▲]

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See detailFluid inclusions in charnockites from the Bjerkreim-Sokndal massif (Rogaland, southwestern Norway): fluid origin and in situ evolution
Wilmart, Edith; Clocchiatti, Robert; Duchesne, Jean-Clair ULg et al

in Contributions to Mineralogy & Petrology (1991), 108

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See detailHigh temperature crossover in paraconductivity of granular Y1Ba2Cu3O7-y
Ausloos, Marcel ULg; Gillet, François ULg; Laurent, Christian et al

in Zeitschrift für Physik. B, Condensed Matter (1991), 84(1), 13-16

We have examined the deviation from linearity of the temperature dependence of the electrical resistivity of a YBaCuO ceramics. We have observed at high temperature a crossover behavior toward a ... [more ▼]

We have examined the deviation from linearity of the temperature dependence of the electrical resistivity of a YBaCuO ceramics. We have observed at high temperature a crossover behavior toward a logarithmic temperature dependence at lower temperature. It seems relevant to attribute the origin of such a term to a pair breaking mechanism contribution, thus to give a lower bound to the existence of superconductivity fluctuations onset temperature. Our findings also implies that carriers are bosons above T(c). [less ▲]

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See detailCorrelation of phasic muscle strength and corticomotoneuron conduction time in multiple sclerosis.
van der Kamp, W.; MAERTENS DE NOORDHOUT, Alain ULg; Thompson, P. D. et al

in Annals of Neurology (1991), 29(1), 6-12

Central motor conduction times for the adductor pollicis muscle, the twitch force of that muscle to scalp magnetic motor cortex stimulation, and the maximum force of phasic voluntary contraction of the ... [more ▼]

Central motor conduction times for the adductor pollicis muscle, the twitch force of that muscle to scalp magnetic motor cortex stimulation, and the maximum force of phasic voluntary contraction of the same muscle were measured in 15 patients with multiple sclerosis. Two tests of manual dexterity of the same hand also were studied: the Purdue pegboard test, and the maximal frequency of a scissors movement of the thumb and index finger. The patients had normal strength or minimal weakness of the intrinsic muscles of the hand on clinical examination. The mean central motor conduction times for the adductor pollicis muscle for the patients were longer than normal, the peak twitch force of the adductor pollicis muscle evoked by cortical stimulation and the maximum force of a phasic voluntary contraction of the adductor pollicis muscle were smaller than normal. There were strong correlations between all these measures. Central motor conduction time in the patients was inversely correlated with voluntary phasic force and the twitch force after cortical stimulation. That is, the longer the central motor conduction time, the weaker the force. Prolonged central motor conduction time is likely to be accompanied by conduction block in corticomotoneuron pathways. The correlation of central motor conduction time with voluntary phasic force and the twitch force most likely reflects the degree of conduction block and temporal dispersion rather than delay in conduction per se. These results indicate that objective assessments of phasic muscle strength may reveal correlations with central motor conduction time that are not evident on conventional clinical examination which assesses tonic muscle contraction strength.(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

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See detailLes legs volontaires en France: évaluation et explication
Pestieau, Pierre ULg; Perelman, Sergio ULg

in Economie et Prévision (1991), (100-101), 129-135

Cet article se propose d’évaluer l’importance des legs volontaires sur la base d’une enquête de l’Insee sur la structure des actifs financiers de 5 600 ménages. Cette mesure est alors analysée pour voir ... [more ▼]

Cet article se propose d’évaluer l’importance des legs volontaires sur la base d’une enquête de l’Insee sur la structure des actifs financiers de 5 600 ménages. Cette mesure est alors analysée pour voir si elle correspond à nos a priori sur les legs intentionnels et si elle est conforme à quelques modèles d’héritage. [less ▲]

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See detailStarters pour la charcuterie
Evrard, P.; Rikir, R.; Thonart, Philippe ULg

in Viande et Bien-être = Vlees en Welzijn (1991), (2), 3-7

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