References of "Scientific journals"
     in
Bookmark and Share    
Peer Reviewed
See detailSarcoidosis: recognition and treatment guidelines
Kaye, O.; Ribbens, Clio ULg; Kahn, M. F. et al

in BioDrugs : Clinical Immunotherapeutics, Biopharmaceuticals & Gene Therapy (1997), 7(6), 441-447

Sarcoidosis is a systemic disorder of unknown aetiology characterised by noncaseating granulomas leading principally to bilateral hilar lymphadenopathies, pulmonary infiltration and skin and eye lesions ... [more ▼]

Sarcoidosis is a systemic disorder of unknown aetiology characterised by noncaseating granulomas leading principally to bilateral hilar lymphadenopathies, pulmonary infiltration and skin and eye lesions. Sarcoidosis may involve other organs, including peripheral lymph nodes, liver, spleen, nervous and musculoskeletal systems, heart, ear, nose and kidney. Although the clinical involvement of liver and heart is relatively uncommon, hepatic and cardiac granulomas are present at autopsy in about 70 to 80% and 25 to 50%, respectively, of patients with this disease. The diagnosis of sarcoidosis includes compatible clinical and/or radiological presentations and histological evidence of noninfectious and noncaseating epitheloid cell granulomas in the absence of other identifiable agents responsible for such histological lesions. Disease course is variable and usually characterised by frequent remissions, but it may become progressive and chronic in a small percentage of patients. The optimal treatment of sarcoidosis remains poorly defined. In patients with progressive pulmonary dysfunction as well as in those with severe extrapulmonary localisations, systemic corticosteroids usually represent the first approach, limited by long term toxicity and frequent relapses after treatment interruption. In the presence of refractory or corticosteroid-dependent forms of the disease, antimalarial drugs or low dosage methotrexate may be used with prolonged benefit. The indications for immunosuppressive agents such as azathioprine, chlorambucil, cyclophosphamide and cyclosporin are uncommon and limited because of potentially serious adverse effects and lack of information on their long term efficacy. In the case of ocular and limited cutaneous manifestations, local corticosteroid therapy may be useful. [less ▲]

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailImpaired LTP induction in dentate gyrus of calretinin-deficient mice
Schurmans, Stéphane ULg; Schiffmann, S. N.; Gurden, H. et al

in Proceedings of the National Academy of Sciences of the United States of America (1997), 94

Calretinin (Cr) is a Ca21 binding protein present in various populations of neurons distributed in the central and peripheral nervous systems. We have generated Cr-deficient (Cr2/2) mice by gene targeting ... [more ▼]

Calretinin (Cr) is a Ca21 binding protein present in various populations of neurons distributed in the central and peripheral nervous systems. We have generated Cr-deficient (Cr2/2) mice by gene targeting and have investigated the associated phenotype. Cr2/2 mice were viable, and a large number of morphological, biochemical, and behavioral parameters were found unaffected. In the normal mouse hippocampus, Cr is expressed in a widely distributed subset of GABAergic interneurons and in hilar mossy cells of the dentate gyrus. Because both types of cells are part of local pathways innervating dentate granule cells andyor pyramidal neurons, we have explored in Cr2/2 mice the synaptic transmission between the perforant pathway and granule cells and at the Schaffer commissural input to CA1 pyramidal neurons. Cr2/2 mice showed no alteration in basal synaptic transmission, but long-term potentiation (LTP) was impaired in the dentate gyrus. Normal LTP could be restored in the presence of the GABAA receptor antagonist bicuculline, suggesting that in Cr2/2 dentate gyrus an excess of g-minobutyric acid (GABA) release interferes with LTP induction. Synaptic transmission and LTP were normal in CA1 area, which contains only few Cr-positive GABAergic interneurons. Cr2/2 mice performed normally in spatial memory task. These results suggest that expression of Cr contributes to the control of synaptic plasticity in mouse dentate gyrus by indirectly regulating the activity of GABAergic interneurons, and that Cr2/2 mice represent a useful tool to understand the role of dentate LTP in learning and memory [less ▲]

Detailed reference viewed: 34 (3 ULg)
See detailLa violence dans les stades de football
Comeron, Manuel ULg

in Revue Générale (1997), (2), 21-30

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailSequence Analysis of the Bovine Herpesvirus Type 1 Genes Homologous to the DNA Polymerase (Ul30), the Major DNA-Binding Protein (Ul29) and Icp18.5 Assembly Protein (Ul28) Genes of Herpes Simplex Virus
Meyer, Gilles; Vlcek, C.; Paces, V. et al

in Archives of Virology (1997), 142(1), 89-102

The nucleotide sequence of a 10.5 kb region (map position 0.332 to 0.410) of bovine herpesvirus type 1 (BHV-1) was determined. This region contained three open reading frames (ORFs) homologous to herpes ... [more ▼]

The nucleotide sequence of a 10.5 kb region (map position 0.332 to 0.410) of bovine herpesvirus type 1 (BHV-1) was determined. This region contained three open reading frames (ORFs) homologous to herpes simplex virus DNA polymerase catalytic subunit (DNApol, UL30), major DNA-binding protein (MDBP, UL29) and ICP18.5 assembly protein (ICP18.5, UL28). The BHV-1 DNApol. MDBP and ICP18.5 ORFs were 1246, 1203 and 826 amino acids long with a calculated molecular mass of 134.2 kDa, 124.4 kDa and 86.9 kDa, respectively. They showed a high homology with alphaherpesvirus homologs despite large differences in the G + C content of the UL30-UL28 segment ranging from 44.4% for varicella zoster virus to 71.5% for BHV-1. Particularly well conserved among Alphaherpesvirinae are the putative functional domains of the DNApol and MDBP proteins which are discussed. Phylogenetic analysis revealed that BHV-1 clustered in the Varicellovirus genus with the animal D-type viruses. In this group, the BHV-1 position was shown to vary according to the investigated genes. Indeed, pseudorabies virus clustered with BHV-1 in the DNApol tree but with equine herpesvirus 1 in the ICP18.5 tree. [less ▲]

Detailed reference viewed: 23 (0 ULg)
Full Text
See detailZiemniak w Belgii
Burny, Philippe ULg; Gazinski, Benon

in Rolnicze abc (1997), 6(83), 20

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailIn vivo behavior of poly(D,L)-lactide microspheres designed for chemoembolization
Flandroy, P.; Grandfils, Christian ULg; Danen, B. et al

in Journal of Controlled Release (1997), 44(2-3), 153-170

Although chemoembolization advantageously combines arterial embolization of the vascular supply of a neoplasm with controlled intra-arterial infusion of chemotherapeutic drug(s), its application is ... [more ▼]

Although chemoembolization advantageously combines arterial embolization of the vascular supply of a neoplasm with controlled intra-arterial infusion of chemotherapeutic drug(s), its application is limited by the lack of appropriate and reliable embolization materials. Recently, calibrated microspheres of poly(D,L)-lactide have proved to be promising in embolization. Nevertheless, repetitive chemoembolization requires the availability of microspheres degradable within a few days. For this purpose, microspheres consisting of a blend of two polyesters of a very different molecular weight (Mn =65 000 and 3500 in a 16:84 wt. ratio) have been prepared and injected in the renal arteries of rabbits. The in vivo fate of these two component microspheres has been compared by radiology and histology to microspheres prepared from the high molecular weight poly(D,L)-lactide. Furthermore, the in vivo degradation of the polymer has been measured by size exclusion chromatography after quantitative reextraction from the embolized kidney. Degradation kinetics has been compared to data previously reported in vitro. According to the observations performed during the in vivo study, the 50/50 microspheres appear more useful for the chemoembolization of tumors. [less ▲]

Detailed reference viewed: 38 (14 ULg)
Full Text
See detailQtl Mapping to Qtl Cloning: Mice to the Rescue
Georges, Michel ULg

in Genome Research (1997), 7(7), 663-665

With the availability of dense, highly informative marker maps, it has recently become feasible to map genes (Quantitative Trait Loci or QTL) accounting for part of the heritability of continuously ... [more ▼]

With the availability of dense, highly informative marker maps, it has recently become feasible to map genes (Quantitative Trait Loci or QTL) accounting for part of the heritability of continuously distributed traits in experimental crosses as well as outbred populations. QTL mapping efforts have almost invariably revealed a limited number of loci with effects of a magnitude clearly departing from the predictions of the infinitesimal model (a model introduced to facilitate mathematical treatment of quantitative traits rather than to truly reflect their underlying biology). As most experimental designs would have limited detection power, which could lead to an overestimation of the identified gene effects, interpretation of results from QTL mapping studies must be viewed with caution. However, numerous independent confirmation studies leave little doubt that most quantitative traits indeed involve a limited suite of loci with major effect. This assertion seems to hold not only for QTL mapped in crosses between divergent lines, but—more importantly—for QTL segregating in outbred populations as well (for review, see Paterson 1995). Despite the sometimes unexpected magnitude of the identified QTL effects, the lack of simple correspondence between genotype and phenotype in complex trait analysis precludes the unambiguous identification of recombinant individuals. This may limit the achievable mapping resolution of QTL, posing a serious threat to the efficacy of positional (candidate) cloning for QTL considerably. QTL mapping efforts, whether performed in pedigrees or by exploiting linkage disequilibrium, are likely to leave geneticists with a portion of the genome that contains tens if not hundreds of genes and many DNA sequence polymorphisms to examine to identify the causal variant. Mutations causing monogenic inherited diseases are often destructive enough to leave little doubt about their causality. Even if the functional consequences of such mutations were less transparent, demonstration of a perfect correspondence between genotype and … [less ▲]

Detailed reference viewed: 22 (1 ULg)
Full Text
Peer Reviewed
See detailInfluence of cholesterol on survival after stroke. Cholesterol may be marker of inflammation.
VALDES SOCIN, Hernan Gonzalo ULg

in BMJ (Clinical Research ed.) (1997), 315(7116), 1159

Detailed reference viewed: 10 (7 ULg)
Full Text
Peer Reviewed
See detailPrimary radiation therapy or surgery combined or not to radiation therapy in the management of squamous cell carcinoma of the penis
Zouhair, Abderrahim; Ozsahin, Mahmut; Douglas, Pelham et al

in International Journal of Radiation, Oncology, Biology, Physics (1997), 39(2 (Supplément)), 295

Detailed reference viewed: 21 (2 ULg)
Peer Reviewed
See detailDopamine 'D2-like' receptor agonists in combination with cocaine: absence of interactive effects on locomotor activity.
Tirelli, Ezio ULg; Reggers, Jean ULg; Terry, P.

in Behavioural Pharmacology (1997), 8(2-3), 147-59

This study examined interactions between cocaine and drugs that act as direct agonists at subtypes of "D2-like" dopamine receptors. The drugs 7-OH-DPAT, quinpirole and RU24213 were studied alone and in ... [more ▼]

This study examined interactions between cocaine and drugs that act as direct agonists at subtypes of "D2-like" dopamine receptors. The drugs 7-OH-DPAT, quinpirole and RU24213 were studied alone and in combination with cocaine for their effects on locomotor activity in non-habituated mice. Locomotor activity was measured by photobeam crossings over 140 min. At the doses given (7-OH-DPAT: 0.006-6.4 mg/kg; quinpirole: 0.001-1 mg/kg; RU24213: 0.008-8 mg/kg) all three direct agonists dose-dependently reduced locomotor activity throughout the test, whereas cocaine (0.6-20 mg/kg) produced dose-related hyperactivity. Next, for each direct agonist, a series of doses was selected (up to threshold behaviourally-active doses) as pretreatments to a sub-maximally stimulant dose of cocaine (15 mg/kg). 7-OH-DPAT and quinpirole did not modulate the effects of cocaine; RU24213 produced, at best, a very modest attenuation of the effects of cocaine. Finally, a series of cocaine doses (below stimulant threshold) was given before a single dose of each direct agonist (the lowest dose to reduce activity significantly). Cocaine did not reliably alter the hypoactivity produced by any of the D2-like agonists. By demonstrating negligible interactions between cocaine and D2-like agonists, the results fail to demonstrate any necessary involvement of D2-like receptors in one of the behavioural effects of cocaine. [less ▲]

Detailed reference viewed: 24 (7 ULg)
Full Text
Peer Reviewed
See detailBounds on the Soft Pomeron Intercept
Cudell, Jean-René ULg; Kang, Kyungsik; Kim, Sung Ku

in Physics Letters B (1997), 395

Detailed reference viewed: 3 (0 ULg)
Peer Reviewed
See detailNew Primers For The Polymerase Chain Amplification Of Cpdna Intergenic Spacers In Phaseolus Phylogeny
Fofana, B.; Harvengt, L.; Baudoin, Jean-Pierre ULg et al

in Belgian Journal of Botany (1997), 129(2),

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailAcetaldehyde-induced changes in the monoamine and amino acid extracellular microdialysate content of the nucleus accumbens
Ward, Roberta J.; Colantuoni, Carlo; Dahchour, Abdelkhader et al

in Neuropharmacology (1997), 36(2), 225-232

The effect of an acute intraperitoneal (i.p.) injection of acetaldehyde, 20 mglkg or 100mg/kg, on the microdialysate content of both amino acids and monoamine was studied in the nucleus accumbens (NA) by ... [more ▼]

The effect of an acute intraperitoneal (i.p.) injection of acetaldehyde, 20 mglkg or 100mg/kg, on the microdialysate content of both amino acids and monoamine was studied in the nucleus accumbens (NA) by a microdialysis technique. Acetaldehyde (ACH) which was detectable at levels of 50-130 µmol/g brain tissue 10 min after injection, evoked a significantd ecrease in the extracellular microdialysis dopamine content, which was sustained for the period of the study, i.e. 120 min. Homovanillicacid, HVA, decreased significantly when the lower dose of ACH was administered while dihydrophenylaceticacid, DOPAC, showed no significant change with either dose of ACH during the period of the study. Serotonin levels decreased significantly after both doses of acetaldehyde, with significant increases of its major metabolite, hydroxyindolacetic acid, 5-HIAA, with the higher acetaldehyde dose. Taurine increased significantly, only during the first twenty minutes, after both doses of acetaldehyde, although neither of the excitatory amino acids assayed, glutamate and aspartate, nor the inhibitoryamino acid, GABA, showed any significant changes. Acetaldehyde clearly evokes significant perturbation in the monoamine content of the NA, such changes being the converse to those reported for monoamine after ethanol administration, which might indicate a negative reinforcement effect. [less ▲]

Detailed reference viewed: 43 (1 ULg)
Full Text
Peer Reviewed
See detailLes modes de transmission du virus de l'hépatite C
Delwaide, Jean ULg; Gerard, Christiane ULg; Sondag, Danièle ULg et al

in Revue Médicale de Liège (1997), 52(6), 388-391

Detailed reference viewed: 12 (3 ULg)
Peer Reviewed
See detailRelationships among estimates of inbreeding depression, dominance and additive variance for linear traits in Holsteins
Misztal, I.; Lawlor, T. J.; Gengler, Nicolas ULg

in Genetics, Selection, Evolution (1997), 29(4), 319-326

Estimates of dominance and additive variances were obtained for 14 linear traits. The data included 600 678 first parity records on 14 linear traits in Holsteins. The model included management groups, age ... [more ▼]

Estimates of dominance and additive variances were obtained for 14 linear traits. The data included 600 678 first parity records on 14 linear traits in Holsteins. The model included management groups, age at calving, additive and dominance effects, and regression on inbreeding percentage. The estimate of the dominance variance was 9.8% of the phenotypic variance for body depth: 8.0% for strength, 6.9% for stature, and was less than 5% for the remaining traits. The additive variance ranged from 12.2% for foot angle to 45.3% for stature. No clear relationship was found between the estimates of dominance and additive variance. larger negative estimates of the inbreeding depression were associated with higher estimates of the dominance variance. [less ▲]

Detailed reference viewed: 51 (1 ULg)
Peer Reviewed
See detailTechniques et indications de la bronchoscopie interventionnelle.
CORHAY, Jean-Louis ULg; Bury, Thierry ULg; Radermecker, Marc ULg et al

in Revue Médicale de Liège (1997), 52(10), 657-65

Detailed reference viewed: 15 (4 ULg)
Full Text
Peer Reviewed
See detailComparison of hindquarter metabolite uptakes in Belgian Blue double-muscled bulls at maintenance or during fattening.
Hornick, Jean-Luc ULg; Van Eenaeme, Christian ULg; Diez, Marianne ULg et al

in Journal of Animal Science (1997), 75(12), 3331-41

Metabolism of muscle growth in the hindquarter was investigated by the arterio-venous difference (AVD) technique in Belgian Blue double-muscled type bulls at maintenance or at fattening. The bulls were ... [more ▼]

Metabolism of muscle growth in the hindquarter was investigated by the arterio-venous difference (AVD) technique in Belgian Blue double-muscled type bulls at maintenance or at fattening. The bulls were fitted with an aortic ultrasonic blood flow probe and with catheters in the aorta and vena cava. They were offered a diet allowing for maintenance (MP) during a period of 15 d, at the end of which measurements were made over 3 d. Bulls were then given a fattening diet (FP) and the measurements were repeated. Arterial blood flow was approximately 1 L/min greater when the bulls were standing than when lying. Blood flow was 2 L/min higher during FP than during MP. The AVD and uptake of glucose were maximal at 1400 and 1600. Uptake of alpha-amino nitrogen decreased immediately after a meal. The increase in glucose from MP to FP fitted very well with the calculated energy needs for muscle growth. The AVD and uptake of alpha-amino nitrogen, total amino acids, and total nonessential amino acids were negative during MP and positive and significantly higher during FP. There was also a significant increase in AVD and uptake of essential and branched-chain amino acids when the bulls were changed from MP to FP. When changing from maintenance to fattening, the incremental glucose and amino acid hindquarter uptake provided energy and supply for muscle protein accretion, respectively. The level of alanine transamination was also sharply reduced. [less ▲]

Detailed reference viewed: 20 (1 ULg)
Full Text
Peer Reviewed
See detailPrognostic factors in urothelial renal pelvis and ureter tumors: A multicenter Rare Cancer Network study
Ozsahin, Mahmut; Zouhair, Abderrahim; Villà, S. et al

in International Journal of Radiation, Oncology, Biology, Physics (1997), 3(2(supp)), 290

Detailed reference viewed: 7 (2 ULg)
Peer Reviewed
See detailAnaemia of lung cancer is due to impaired erythroid marrow response to erythropoietin stimulation as well as relative inadequacy of erythropoietin production.
Dowlati, A.; R'Zik, Samir ULg; Fillet, Georges ULg et al

in British Journal of Haematology (1997), 97(2), 297-9

Many studies have been done in order to elucidate the pathogenesis of the anaemia of chronic disorders accompanying cancer, with conflicting results. This is probably due to the heterogeneity of the ... [more ▼]

Many studies have been done in order to elucidate the pathogenesis of the anaemia of chronic disorders accompanying cancer, with conflicting results. This is probably due to the heterogeneity of the patient population selected for these studies (many patients treated by chemotherapy). To avoid this pitfall, in this study a very homogenous group of chemotherapy and radiotherapy-naive patients with lung cancer were selected. Serum erythropoietin and soluble transferrin receptor measurements suggested that the anaemia of non-treated lung cancer is mainly due to an impaired erythroid marrow response to erythropoietin stimulation. However, a relative inadequacy of erythropoietin production may also contribute. [less ▲]

Detailed reference viewed: 20 (3 ULg)
Peer Reviewed
See detailSelection of lumped parameter models to characterize vascular properties of pulmonary circulation
LAMBERMONT, Bernard ULg; GERARD, P; DETRY, Olivier ULg et al

in American Journal of Respiratory & Critical Care Medicine (1997), 2

Peer Reviewed
See detailInfluence of dominance relationships on the estimation of dominance variance with sire-dam subclass effects
Gengler, Nicolas ULg; VanVleck, L. D.; MacNeil, M. D. et al

in Journal of Animal Science (1997), 75(11), 2885-2891

Two data sets from the USDA Livestock and Range Research Laboratory mere analyzed to study dominance variance and the influence of dominance relationships. The first consisted of 4,155 birth weight (3,884 ... [more ▼]

Two data sets from the USDA Livestock and Range Research Laboratory mere analyzed to study dominance variance and the influence of dominance relationships. The first consisted of 4,155 birth weight (3,884 weaning weight) records of inbred USDA Line 1 Herefords. The second consisted of 8,065 birth weight (7,380 weaning weight) records from a line-cross experiment with five lines. Two models were used. Both included fixed effects of year-sex of calf and age of dam, and covariates for calving date, inbreeding of animal, and inbreeding of dam. For the second set, additional covariates were line composition and heterozygosity coefficients. Random effects were direct and maternal additive genetic, maternal permanent environment, sire-dam subclass, and residual. Model 1 considered sire-dam subclasses unrelated. Model 2 related sire-dam subclasses with a parental dominance relationship matrix. Variance components were estimated using REML. Differences between estimates with Model 1 and 2 were unimportant except for dominance variance. For the first data set, estimates with Model 2 of relative genetic direct and maternal variances, direct-maternal correlation, permanent environment, and dominance variances for birth weight were .35, .13, -.02, .03, and .25, respectively, and they were .39, .11, .04, .06 and .14 for the second data set. For weaning weight, the first data set estimates were .20, .15, -.37, .19, and .11, respectively, and they were .16, .20, -.07, .18, and .18 for the second data set. Changes, decreases and increases, in estimates of dominance variances may be due to increased information from relationships and family types other than full-sibs. The assumption of unrelated sire-dam subclasses might not be appropriate for estimation of dominance variance in populations with many dominance relationships among siredam classes. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailStructural And Functional Properties Of The 154-171 Wild-Type And Variant Peptides Of Human Lecithin-Cholesterol Acyltransferase
Peelman, F.; Goethals, M.; Vanloo, B. et al

in European Journal of Biochemistry (1997), 249(3), 708-15

The 154-171 segment of the human lecithin-cholesterol acyltransferase (LCAT) enzyme was identified as the most stable amphipathic helix in the LCAT sequence. Its mean hydrophobicity, hydrophobic moment ... [more ▼]

The 154-171 segment of the human lecithin-cholesterol acyltransferase (LCAT) enzyme was identified as the most stable amphipathic helix in the LCAT sequence. Its mean hydrophobicity, hydrophobic moment and its orientation at a lipid/water interface are similar to those of some of the helical repeats of apolipoprotein A-IV and E. This domain was therefore proposed as a candidate peptide accounting for the association between LCAT and its lipid substrate. To investigate this hypothesis we synthesized the LCAT-(154-171)-peptide, two variants containing the natural Y156N and R158C mutations and a variant with increased hydrophobicity through Y156I, L160I, L163I and Y171W substitutions. The structural and lipid-binding properties of these synthetic peptides were investigated by turbidity, fluorescence, electron microscopy and circular dichroism. The wild-type peptide, the R158C variant in its dimeric form, as well as the more hydrophobic peptide, associated with phospholipids, whereas the Y156N and the R158C variant in its monomeric form did not. However, only the complexes generated with the hydrophobic variant were stable enough to resist dissociation during gel filtration. The wild-type peptide and hydrophobic variant formed discoidal complexes with dimyristoylglycerophosphocholine (Myr2GroPCho) as shown by negative staining electron microscopy. Comparison of the properties of the wild-type and hydrophobic variant LCAT-(154-171)-peptide stresses the contribution of the hydrophobic face of the amphipathic helix to the formation and stabilization of the peptide/lipid complexes. This is further confirmed by the decreased affinity of the Y156N variant peptide for lipids, as this mutation decreased the mean hydrophobicity of the hydrophobic face of the amphipathic helix. These results support the hypothesis that the 154-171 segment of LCAT might be involved in the interaction of the enzyme with its lipid substrate and suggest that the decreased activity of the Y156N natural LCAT mutant might result from a decreased affinity of this mutant for lipids. [less ▲]

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailPredictions in overdispersed series of counts using an approximate predictive likelihood
Lambert, Philippe ULg

in Journal of Forecasting (1997), 16

The generalized autoregression model or GARM, originally used to model series of non-negative data measured at irregularly spaced time points (Lambert, 1996a), is considered in a count data context. It is ... [more ▼]

The generalized autoregression model or GARM, originally used to model series of non-negative data measured at irregularly spaced time points (Lambert, 1996a), is considered in a count data context. It is first shown how the GARM can be expressed as a GLM in the special case of a linear model for some transform of the location parameter. The Butler approximate predictive likelihood (Butler, 1986, Rejoinder) is then used to define likelihood prediction envelopes. The width of these intervals is shown to be slightly wider than the Fisher (1959, pp. 128-33) and Lejeune and Faulkenberry (1982) predictive likelihood-based envelopes which assume that the parameters have fixed known values (equal to their maximum likelihood estimates). The method is illustrated on a small count data set showing overdispersion. [less ▲]

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailLa responsabilité pénale du réviseur d'entreprises : Épée de Damoclès ou Tigre de papier ?
Thirion, Nicolas ULg; Benoit-Moury, Anne

in Revue pratique des sociétés (1997), (2), 189-229

Detailed reference viewed: 23 (2 ULg)
Peer Reviewed
See detailSur le bilinguisme dans les armées d'Hannibal
Rochette, Bruno ULg

in Etudes Classiques (Namur, Belgium) (1997), 65

Examen des divers témoignages antiques relatifs à la question linguistique au sein de l'armée d'Hannibal. Fort hétéroclite par son recrutement, cette armée présentait inévitablement une grande bigarrure ... [more ▼]

Examen des divers témoignages antiques relatifs à la question linguistique au sein de l'armée d'Hannibal. Fort hétéroclite par son recrutement, cette armée présentait inévitablement une grande bigarrure linguistique. On y trouvait cependant des interprètes et des soldats capables de s'exprimer dans la langue des ennemis ou de s'improviser eux-mêmes interprètes. De fait il existait un bilinguisme associant la connaissance d'une ou de plusieurs langues locales, d'une part, et du grec ou du latin, d'autre part. [less ▲]

Detailed reference viewed: 51 (0 ULg)
Peer Reviewed
See detailDes auteurs dans les ruines. Parcours arbitraire
Delhalle, Nancy ULg

in Alternatives Théâtrales (1997)

Detailed reference viewed: 13 (3 ULg)
See detailAu fil du fleuve. Entretien avec Luc et Jean-Pierre Dardenne
Mélon, Marc-Emmanuel ULg; d'Autreppe, Emmanuel; Flamant, Nathalie et al

in Revue belge du cinéma (1997), 41

Detailed reference viewed: 32 (3 ULg)
Full Text
Peer Reviewed
See detailA 2-year phase II study with 1-year of follow-up of risedronate (NE58095) in postmenopausal osteoporosis
Clemmesen, B; Ravn, P; Zegels, Brigitte ULg et al

in Osteoporosis International (1997), 7

Detailed reference viewed: 12 (4 ULg)
Full Text
Peer Reviewed
See detailThyroid hormone inhibits the human prolactin gene promoter by interfering with activating protein-1 and estrogen stimulations
Pernasetti, Flavia; Caccavelli, L.; Van de Weerdt, Cécile ULg et al

in Molecular Endocrinology (Baltimore, Md.) (1997), 11(7), 986-96

Transcription of the human PRL (hPRL) gene in the pituitary is subject to tissue-specific and multihormonal regulation involving two main regulatory regions, a proximal promoter and a distal enhancer. In ... [more ▼]

Transcription of the human PRL (hPRL) gene in the pituitary is subject to tissue-specific and multihormonal regulation involving two main regulatory regions, a proximal promoter and a distal enhancer. In this report we show that thyroid hormone inhibits the expression of the hPRL gene in rat pituitary cells. Transient expression experiments show that thyroid hormone regulation involves a strong inhibitory element, located in the proximal (-164/-35) promoter, which is modulated by a more distal stimulatory response control region. Gel retardation experiments reveal that the thyroid hormone receptor does not bind to the proximal negative element. We show the existence of an activating protein-1 (AP-1) response element located at positions -61 to -54 of the proximal promoter, conferring AP-1 stimulation to the hPRL promoter. This AP-1 induction is abolished when hormone-bound thyroid hormone receptor is present, indicating that there is an interference between the thyroid hormone receptor and AP-1 regulatory pathways. Furthermore, using the complete hPRL upstream region, we show that estrogen induction is abolished by simultaneous thyroid hormone treatment. [less ▲]

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailMultiple seawater-derived geochemical signatures in Indian oceanic pelagic clays
Fagel, Nathalie ULg; André, Luc; Debrabant, Pierre

in Geochimica et Cosmochimica Acta (1997), 61(5), 989-1008

This paper reports a geochemical study of oceanic clays. Major and trace elements were analyzed on smectite-rich, clay size (<2 mu m) samples, bulk sediments, and leachate residues from the Central Indian ... [more ▼]

This paper reports a geochemical study of oceanic clays. Major and trace elements were analyzed on smectite-rich, clay size (<2 mu m) samples, bulk sediments, and leachate residues from the Central Indian Basin. Sr-Nd isotopes were also studied to investigate their geochemical evolution during transport in the water column, sedimentation, and diagenesis. The region is of special interest because the sedimentation records the interaction between the detrital supply from the Bengal Fan in the north and the biosiliceous input associated with the equatorial divergence in the south. The clay size fractions display extremely variable trace element contents, e.g., [Ba] = 100-5000 ppm, [Sr] = 20-200 ppm, Ce/Ce* = 0.9-3.3, [Nd] = 10-50 ppm. Although in the argillaceous samples, clay size fractions have a similar trace element imprint to the bulk sediment, some major fractionations occur in the biosiliceous samples between the clay and the bulk sediment, especially for Sr and rare earth elements (REE). Three major components may account for the variable geochemical signatures of these pelagic clays. The first component (component A), already identified by Fagel et al. (1994), is characterized by a homogeneous geochemical signature (La-N/Yb-N = 1.03-1.05; Th/Ta = 12.8-21.1; Ba/Th similar to 28) and a nonradiogenic Nd isotopic composition (Nd-143/Nd-144 similar to 0.511880): it traces a detrital Himalayan-derived origin. The two other components display a seawater-derived isotopic composition with global Sr (Sr-87/Sr-86 similar to 0.709060) and regional Indian Ocean Nd(Nd-143/Nd-144 similar to 0.512200) signatures. Both components are enriched in Sr and Ba (Sr similar to 150 ppm, Ba/Th similar to 500), and they are either enriched in light rare earth elements (LREE, e.g., Nd similar to 50 ppm) in the argillaceous sediments (component B) or LREE-depleted (Nd < 20 ppm) in the biosiliceous sediments (component C). The frequent occurrence of micrometric (<5 mu m) Sr-REE-Th enriched barite grains showing three major habits (rhombic, rounded, dendritic) suggests that these biologically-derived mineral phases had a major role in the genesis of components B and C. A strong clay-barite equilibration is deduced from the Post Archean Australian Shales PAAS-like REE patterns of these barites and the Ba enrichment of the clays. We suggest that it results from two successive mechanisms of exchange. First, at the top of the oxygen minimum zone, the microbial-induced decay of organic matter is proposed to trigger a series of trace element transfers between the various particulate-forming components (clays, barites, and decaying organic coatings). This is proposed as the origin of the clay component B: the barite-derived components (Ba, Sr) and the organic-derived positive Ce anomaly are imported to the clay particles while the PAAS signature of the clays is retained by the remaining barite crystals. Second, after settling, the barites are believed to partly dissolve and recrystallize, especially in the anoxic part of the sedimentary column. This diagenetic barite dissolution is proposed as the origin of the clay component C. Copyright (C) 1997 Elsevier Science Ltd. [less ▲]

Detailed reference viewed: 31 (1 ULg)
See detailIl libro di messer Tristano («Tristano Veneto»).
Moreno, Paola ULg

in Moyen Age (Le) (1997)

Detailed reference viewed: 28 (0 ULg)
Full Text
Peer Reviewed
See detailPlasma bovine pregnancy-associated glycoprotein concentrations throughout gestation in relationship fetal number in the cow
Patel, Osman V; Sulon, Joseph ULg; Beckers, Jean-François ULg et al

in European Journal of Endocrinology (1997), 137

This study characterized the peripheral plasma bovine pregnancy-associated glycoprotein (bPAG) profile throughout gestation and examined the effect of stage of gestation and fetal number on this profile ... [more ▼]

This study characterized the peripheral plasma bovine pregnancy-associated glycoprotein (bPAG) profile throughout gestation and examined the effect of stage of gestation and fetal number on this profile in Holstein cows after non-surgical embryo transfer. Cows (n = 12) were divided into three groups: group 1 = normal singleton pregnancies (n = 5); group 2 = normal twin pregnancies (n = 5); group 3 = abnormal twin pregnancies (n = 2). Blood was collected about every third day from day 0 (defined as the first day of standing estrus), then daily for the last 10 days of gestation, and sampling was stopped one day postpartum. The time-related changes in plasma bPAG concentrations were significantly (P < 0.01) affected by the stage of gestation and fetal number (P < 0.01), except during the last 10 days of gestation. In both normal pregnancy groups, bPAG concentration increased rapidly during the first trimester (0.5 +/- 0.1 to 14.6 +/- 1.7 ng/ml and 1.0 +/- 0.6 to 21.8 +/- 4.8 ng/ml, in singleton and twin-bearing groups respectively), then progressively between days 160 and 20 prepartum (31.6 +/- 6.2 to 114.3 +/- 31.3 ng/ml and 41.6 +/- 7.4 to 155.8 +/- 36.6 ng/ml in singleton and twin-bearing cows respectively). The mean concentration between days 20 and 10 prepartum approximately tripled (P < 0.001) in both these groups of cows (114.3 +/- 31.1 to 493.0 +/- 75.3 ng/ml and 155.8 +/- 36.6 to 409.3 +/- 114.7 ng/ml in singleton and twin-bearing cows respectively), but between days 10 prepartum and parturition the values increased about threefold (P < 0.01) in the singleton group (493.0 +/- 75.3 to 1352.8 +/- 286.5 ng/ml) and fivefold (P < 0.001) in the twin-bearing group (409.3 +/- 114.7 to 2154.0 +/- 505.7 ng/ml). The two cows in group 3 that gave birth prematurely to a stillborn calf or to a schistosomus reflexus calf exhibited an aberrant bPAG profile. Our results indicate that peripheral bPAG concentrations are correlated to the stage of gestation and fetal number, and that the profile of the peripheral plasma concentrations provides a useful indication of the feto-placental status. [less ▲]

Detailed reference viewed: 31 (3 ULg)
Peer Reviewed
See detailElectron tomography of metaphase nucleolar organizer regions: evidence for a twisted-loop organization.
Heliot, L.; Kaplan, H.; Lucas, L. et al

in Molecular Biology of the Cell (1997), 8(11), 2199-216

Metaphase nucleolar organizer regions (NORs), one of four types of chromosome bands, are located on human acrocentric chromosomes. They contain r-chromatin, i.e., ribosomal genes complexed with proteins ... [more ▼]

Metaphase nucleolar organizer regions (NORs), one of four types of chromosome bands, are located on human acrocentric chromosomes. They contain r-chromatin, i.e., ribosomal genes complexed with proteins such as upstream binding factor and RNA polymerase I, which are argyrophilic NOR proteins. Immunocytochemical and cytochemical labelings of these proteins were used to reveal r-chromatin in situ and to investigate its spatial organization within NORs by confocal microscopy and by electron tomography. For each labeling, confocal microscopy revealed small and large double-spotted NORs and crescent-shaped NORs. Their internal three-dimensional (3D) organization was studied by using electron tomography on specifically silver-stained NORs. The 3D reconstructions allow us to conclude that the argyrophilic NOR proteins are grouped as a fiber of 60-80 nm in diameter that constitutes either one part of a turn or two or three turns of a helix within small and large double-spotted NORs, respectively. Within crescent-shaped NORs, virtual slices reveal that the fiber constitutes several longitudinally twisted loops, grouped as two helical 250- to 300-nm coils, each centered on a nonargyrophilic axis of condensed chromatin. We propose a model of the 3D organization of r-chromatin within elongated NORs, in which loops are twisted and bent to constitute one basic chromatid coil. [less ▲]

Detailed reference viewed: 14 (0 ULg)
Peer Reviewed
See detailHydrostatic flattening, core structure, and translational mode of the inner core
Denis, Carlo; Rogister, Yves; Amalvict, Martine et al

in Physics of the Earth & Planetary Interiors (1997), 99(3-4), 195-206

Modern Earth models are constrained by an inertia coefficient y*=J(2)/H approximate to 0.3308 which leads to a so-called 'hydrostatic' flattening f(hyd) approximate to 1/299.9. The latter is in rather ... [more ▼]

Modern Earth models are constrained by an inertia coefficient y*=J(2)/H approximate to 0.3308 which leads to a so-called 'hydrostatic' flattening f(hyd) approximate to 1/299.9. The latter is in rather large disagreement with the observed flattening f approximate to 1/298.3. We show that a more satisfactory value of the inertia coefficient for constraining a standard Earth model is y approximate to 0.332, consistent with a hydrostatic flattening of about 1/298.6. The change of the value of the inertia coefficient from about 0.331 to about 0.332 significantly alters the density structure of the core, notably the density jump at the inner core boundary. It brings, as a by-produce, the hydrostatic values of J(2) and H to better agreement with the observed values than is presently thought, and most probably leads for the Slichter mode to a period of much longer than 5.42 h, which is the value computed for PREM. [less ▲]

Detailed reference viewed: 59 (1 ULg)
Full Text
Peer Reviewed
See detailThe effect of dispersion and atomisation conditions on the compaction response of silicon nitride granules
Destoop, Vincent; Mertens, Anne ULg; Hendrix, W. et al

in Key Engineering Materials [=KEM] (1997), 132-136

The relationship between the dispersion conditions of silicon nitride slurries and the compaction behaviour of spray dried granules is reported in the case of two commercial powders. Two parameters have ... [more ▼]

The relationship between the dispersion conditions of silicon nitride slurries and the compaction behaviour of spray dried granules is reported in the case of two commercial powders. Two parameters have been retained: the solid loading, varied between 10 and 30 vol.% and the degree of stability of the suspension, controlled by adjustment of the pH. [less ▲]

Detailed reference viewed: 55 (4 ULg)
Full Text
Peer Reviewed
See detailChanges in the Distribution Pattern of Galectin-1 and Galectin-3 in Human Placenta Correlates with the Differentiation Pathways of Trophoblasts
Maquoi, Erik ULg; van den Brule, F. A.; Castronovo, Vincenzo ULg et al

in Placenta (1997), 18(5-6, Jul-Aug), 433-9

Human placentation is a complex biological phenomenon that results from precisely regulated interactions between cells and the extracellular matrix. Galectin- 1 and galectin-3 belong to a newly defined ... [more ▼]

Human placentation is a complex biological phenomenon that results from precisely regulated interactions between cells and the extracellular matrix. Galectin- 1 and galectin-3 belong to a newly defined family of galactose-binding lectins that can bind several glycoconjugates such as the basement membrane glycoprotein laminin, and are involved in many biological events including cell adhesion. In this study, the expression of these two galectins in first and third trimester normal human placenta was examined using single and double immunohistochemical staining and specific antibodies for galectins and cytokeratins. Galectin-3 was detected in all trophoblastic lineages including villous cytotrophoblasts and extravillous trophoblasts (trophoblastic cell columns, infiltrating trophoblasts, endovascular trophoblasts and placental bed giant cells). On the contrary, galectin-1 distribution was restricted to endometrium. A reduction of galectin-3 expression was observed from the villous trophoblasts to the trophoblastic cell columns. This pattern correlated with the switch from a proliferative to a migratory phenotype. Galectin-1 and galectin-3 were both detected in maternal decidual cells. Our data demonstrate a specific pattern of galectin-1 and galectin-3 expression in trophoblastic tissue, and suggest these lectins could contribute to cell-cell and cell matrix interactions of trophoblast during placentation. [less ▲]

Detailed reference viewed: 18 (0 ULg)
See detailThe effects of shunting sytemic venous blood into the portal circulation. Review, experiences and future perspectives
D'Silva, Milbhor; Wolf, P.; Bonnet, Pierre ULg

in Archives of Hellenic Medecine (1997), 14(3), 246-264

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detailCaractéristiques microbiologiques et organoleptiques du nététu du commerce.
N'dir, B.; Gningue, B. D.; Keita, N. G. et al

in Cahiers Agricultures (1997), 6

Detailed reference viewed: 7 (0 ULg)
Full Text
See detailComment se développe le savoir-lire ?
Hindryckx, Geneviève ULg; Lafontaine, Annette ULg

in Point sur la Recherche en Education (Le) (1997), 4

Detailed reference viewed: 8 (2 ULg)
Full Text
Peer Reviewed
See detailCharacterization of CuInTe2 thin films prepared by flash evaporation
Boustani, M.; El Assali, K.; Bekkay, T. et al

in Semiconductor Science & Technology (1997), 12

Thin films of CuInTe2 were grown by flash evaporation. The influence of the substrate temperature Ts during film deposition on the properties of the thin films was examined. CuInTe2 films were ... [more ▼]

Thin films of CuInTe2 were grown by flash evaporation. The influence of the substrate temperature Ts during film deposition on the properties of the thin films was examined. CuInTe2 films were structurally characterized by the grazing incidence x-ray diffraction (GIXD) technique. Investigation by this technique demonstrates that the surface of thin films of CuInTe2 prepared by flash vaporation at Ts > 100 °C exhibits the chalcopyrite structure with additional binary compounds in the surface. However, in the volume the films exhibit the chalcopyrite structure only; no foreign phases were observed. X-ray reflectometry was utilized to evaluate the critical reflection angle bc of CuInTe2 (bCuInTe2 c 0.32°) which permitted us to calculate the density of the films to be 6 g cm−3. The evaporated films were p type and the films deposited at Ts = 100 °C had a resistivity in the range 0.3–2 cm. From optical measurements we have determined the optical energy gap Eg 0.94 eV and the effective reduced mass m*r 0.07me . [less ▲]

Detailed reference viewed: 36 (1 ULg)
Full Text
Peer Reviewed
See detailJL 13, a pyridobenzoxazepine compound with potential atypical antipsychotic activity: a review of its behavioral properties
Bruhwyler, J.; Liégeois, Jean-François ULg; Bergman, J. et al

in Pharmacological Research (1997), 36

Detailed reference viewed: 12 (2 ULg)
Full Text
Peer Reviewed
See detailDesign for an Ipriflavone Multicenter European Fracture Study
Reginster, Jean-Yves ULg; Bufalino, L.; Christiansen, C. et al

in Calcified Tissue International (1997), 61(Suppl 1), 28-32

In order to investigate the efficacy of ipriflavone (i.p.) on the prevention of vertebral fractures and the effect on bone mineral density (BMD) in women with postmenopausal osteoporosis, a large ... [more ▼]

In order to investigate the efficacy of ipriflavone (i.p.) on the prevention of vertebral fractures and the effect on bone mineral density (BMD) in women with postmenopausal osteoporosis, a large multicentric European study was designed and is presently ongoing. Included in the study were 460 Caucasian, nonobese postmenopausal women aged > 45 and < 75 years, menopaused for at least 12 months. Inclusion was on the basis of a lumbar bone mineral density (BMD) lower than 2 SD compared with healthy women aged 50 years, corresponding to values below 0.860 g/cm2 (antero-posterior measurement) by Hologic QDR 1000. Women with prevalent vertebral fractures were excluded as well as those presenting secondary osteoporosis or having been treated with medications that could affect bone metabolism. This study was designed as a 3-year, double-blind, placebo-controlled, parallel group study that randomized the women to the oral administration of either 3 x 200 mg/day of i.p. or placebo. All patients received a daily supplement of 500 mg calcium. The primary purpose of the study was to evaluate the efficacy of i.p. in preventing vertebral nontraumatic fractures. Fracture is defined here as a > or = 20% decrease in any anterior, central, or posterior T4-L4 vertebral height. Blinded vertebral X-ray readings and vertebral morphometry have been centralized in an independent Center, with standardized evaluation of two experts. Power calculations have been based on the hypothesis that 21% of placebo-treated patients would fracture within 3 years and that treatment with i.p. would lead to a 50% reduction in the incidence of fracture. Statistical tests have been designed to have a power of 80%, with a type I error equal to 5%. Secondary endpoints were changes in vertebral, radial, and femoral BMD. Centralized controls on 100% BMD scans would ensure the good quality of BMD readings. This study should verify the hypothesis that i.p. significantly decreases the risk of vertebral fracture in postmenopausal, osteoporotic women. [less ▲]

Detailed reference viewed: 10 (3 ULg)
Full Text
Peer Reviewed
See detailPrevalence and characterization of Microsporum canis carriage in cats.
Mignon, Bernard ULg; Losson, Bertrand ULg

in Journal of Medical and Veterinary Mycology : Bi-Monthly Publication of the International Society for Human and Animal Mycology (1997), 35(4), 249-256

In order to determine the prevalence and to characterize the carriage of Microsporum canis in cats, different mycological examinations (including a culture obtained by hair brushing and Wood's light ... [more ▼]

In order to determine the prevalence and to characterize the carriage of Microsporum canis in cats, different mycological examinations (including a culture obtained by hair brushing and Wood's light examination) were performed on 632 animals of different origins. Group 1 comprised 467 healthy pet cats belonging to veterinary students. In this group, prevalence of carriage was 2.1%: eight cats were asymptomatic transient carriers and one cat was an asymptomatic infected animal presenting discrete Wood's-positive lesions disseminated on the whole body that were visible after sedation and clipping. The carriage prevalence was higher (15.7%) in group 2 comprising 134 European cats destroyed in a pound and kept together. In two additional groups of cats, it was shown that an infected cat was responsible for the dissemination of fungal material into its environment including the other in-contact animals. When the active source of fungus was removed, the dissemination stopped, resulting in a decrease in the amount of infective material recovered from both the animal carriers and the environmental surfaces. This was also observed in two experimental groups of guinea pigs. No association between feline immunodeficiency virus infection and the M. canis carriage was observed in a retrospective case-control study performed on group 2. None of these cats was feline leukaemia virus positive. [less ▲]

Detailed reference viewed: 34 (3 ULg)
Peer Reviewed
See detailWhole organ vascularized cluster heart-thymus allografting : Experiences with a novel experimental model
D'Silva, Milbhor; Antoniou, E.; Howie, A. J. et al

in Cardiovascular Engineering : An International Journal (1997), 2(1), 65-74

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailSynthesis of resorcinol-formaldehyde aeroels by the freeze-drying methods
Mathieu, Bernard; Michaux, Bernard; Pirard, René ULg et al

in Annales de Chimie Science des Materiaux (1997), 22

Detailed reference viewed: 23 (8 ULg)
Peer Reviewed
See detailInfluence of a blend of fructo-oligosaccharides and sugar beet fiber on nutrient digestibility and plasma metabolites concentrations in healthy Beagles
Diez, Marianne ULg; Hornick, Jean-Luc ULg; Baldwin, Paule ULg et al

in American Journal of Veterinary Research (1997), 58

Objective-To evaluate effects of a blend of fructo-oligosaccharides and sugar beet fiber (4:1) at 3 incorporation rates on nutrient digestibility and plasma glucose, insulin, alpha-aminonitrogen, urea ... [more ▼]

Objective-To evaluate effects of a blend of fructo-oligosaccharides and sugar beet fiber (4:1) at 3 incorporation rates on nutrient digestibility and plasma glucose, insulin, alpha-aminonitrogen, urea, cholesterol, and triglycerides concentrations measured weekly in nonfed dogs and during a 360-minute period after a meal. Animals-8 castrated 1 to 1.4-year-old young adult male Beagles weighing 10.0 to 13.5 kg. Procedure-Diets containing 2 incorporation rates of a blend of fructo-oligosaccharides and sugar beet fiber (5 and 10% on a dry matter basis [diets B and C, respectively]) were compared with a control diet without additional fiber (diet A). The 3 diets were evaluated for ability to modify digestibility of dry and organic matter, protein, fat, and ash and for effects on plasma glucose, insulin, alpha-aminonitrogen, urea, cholesterol, and triglycerides concentrations. Each diet was fed for 6 weeks; plasma samples were collected weekly before feeding and after feeding on the last day of the period, During 1 week at the end of the 6-week period, dogs were kept in metabolic cages. Each period of the block was followed by a 4-week washout period. Results-Incorporating the blend of fructo-oiigosaccharides and sugar beet fiber in the diet was associated with greater passage of wet feces (diets B and C) and lower protein digestibility (diet C). Postprandial glucose (diet C), urea (diets B and C) and triglyceride (diets B and C) concentrations were significantly (P < 0.01) decreased. Weekly preprandial measurements were characterized by decreased urea (diets B and C), cholesterol (diet C), and triglycerides (diets B and C) concentrations (P < 0.001). Conclusion-Chronic consumption of fermentable fiber is associated with mildly decreased protein digestibility and with metabolic effects in nonfed or fed dogs. Clinical Relevance-A blend of fructo-oligosaccharides and sugar beet fiber should he tested as a dietary aid for treatment of chronic diseases, such as diabetes mellitus or hyperlipidemia, in dogs. [less ▲]

Detailed reference viewed: 29 (2 ULg)
Peer Reviewed
See detailLangmuir film balance study of the surface properties of a soluble fraction of milk fat-globule membrane
Innocente, N.; Blecker, Christophe ULg; Deroanne, C. et al

in Journal of Agricultural and Food Chemistry (1997), 45(5), 1559-1563

Viewed from its origin, composition, and physicochemical properties, milk fat-globule membrane (MFGM) appears to act as a good, natural emulsifier and should be also considered as a potential stabilizing ... [more ▼]

Viewed from its origin, composition, and physicochemical properties, milk fat-globule membrane (MFGM) appears to act as a good, natural emulsifier and should be also considered as a potential stabilizing agent in the preparation of certain foods, e.g. creams and emulsions, infant formulas, and reduced-fat products. The present work was undertaken in an attempt to gain further information on the physicochemical properties of MFGM. In particular, the purpose of this study was to determine surface properties of a soluble fraction of MFGM (SFMFGM) using a film balance and to investigate the changes in the surface activity at different temperatures, which may occur during milk cream ripening or during heat and mechanical treatments of dairy products. The results showed that film balance measurements at the air/water interface actually provided a useful method for the study of SFMFGM monolayers. It was deduced from the compression isotherms that the SFMFGM films spread at the air/water interface presented a different behavior when the temperature varied from 4 to 40 degrees C. [less ▲]

Detailed reference viewed: 26 (0 ULg)
Full Text
Peer Reviewed
See detailTricho-hepato-enteric syndrome: further delineation of a distinct syndrome with neonatal hemochromatosis phenotype, intractable diarrhea, and hair anomalies.
Verloes, A.; Lombet, J.; Lambert, Yves ULg et al

in American Journal of Medical Genetics (1997), 68(4), 391-5

We report on two sibs with syndromal congenital iron storage disease. Prenatal symptoms were IUGR, hydramnios, and placental hyperplasia. Clinical anomalies included hypertelorism and sparse, thin, curly ... [more ▼]

We report on two sibs with syndromal congenital iron storage disease. Prenatal symptoms were IUGR, hydramnios, and placental hyperplasia. Clinical anomalies included hypertelorism and sparse, thin, curly hair (trichomalacia). Clinical course was marked by intractable diarrhoea, with normal histological and enzymological studies, cholestatic jaundice, hepatomegaly appearing after 30 days, and progressive liver failure, leading to death after a few months. The only metabolic anomaly was progressive hypermethioninemia. Pathologic examination of both children showed a similar pattern of multivisceral iron deposit compatible with a diagnosis of neonatal hemochromatosis: extensive liver fibrosis or cirrhosis with nodular regeneration, cholestasis, ductular proliferation, and hepatic, pituitary, thyroidal, adrenal, and pancreatic iron deposition. The unusual course for neonatal hemochromatosis in both sibs combined with concordant extrahepatic anomalies suggest that they could have a specific iron storage syndrome with possible autosomal recessive inheritance, probably similar to the sibship reported by Stanckler et al. [Arch Dis Child, 57:212-216, 1982]. [less ▲]

Detailed reference viewed: 37 (0 ULg)
Peer Reviewed
See detailPhysical activity, obesity, and cardiovascular risk factors in children. The Belgian Luxembourg Child Study II.
Guillaume, Michèle ULg; Lapidus, L.; Bjondorp, P. et al

in Obesity Research (1997), 5(6), 549-56

Physical activity was measured in relation to cardiovascular (CV) risk factors in a randomly selected population of 1028 children from Province de Luxembourg in Belgium, a mainly rural area with a high ... [more ▼]

Physical activity was measured in relation to cardiovascular (CV) risk factors in a randomly selected population of 1028 children from Province de Luxembourg in Belgium, a mainly rural area with a high prevalence of such risk factors among adults and children. Physical activity was estimated as participation in sport activities, a major indicator of leisure-time physical activity in schoolchildren, and physical inactivity was estimated as frequency and duration of television (TV) watching. Boys participated more frequently in sport activities than girls did (p = 0.001). A majority of the children watched TV daily. After age adjustment, bodyweight (girls, p < 0.012; boys, p < 0.027) and, in boys, body mass index (BMI) (p < 0.039) were related to days per week of TV watching. No significant relationships with other CV risk factors remained after adjustments for BMI. In analyses of independent contributions of age, TV watching, and sports activity on CV risk factors, age showed highly significant relationships. In boys, TV showed relationships with BMI (p < 0.04) and (borderline) with systolic blood pressure, independent of age and sports activity, whereas the latter was significantly related to subscapular skinfold (p < 0.04) and (borderline) with triceps skinfold and cholesterol. In girls, no significant independent contributions to risk factor associations were found. The father's education was directly associated with sports activities, whereas the mother being a housewife showed negative relationships to physical activity and positive to TV watching in their children, suggesting socioeconomic influence on the activity patterns of children. Furthermore, registrations suggested less physical activity in the most rural part of the area. It is concluded that children in this mainly rural area watch TV frequently. In boys, physical inactivity, measured both as TV watching and as registrations of sports activities, contributes independently to body fat mass. In girls, no contribution or weaker contributions of physical inactivity were found. This suggests that contributory factors leading to obesity might be different in girls and boys. [less ▲]

Detailed reference viewed: 48 (7 ULg)
Peer Reviewed
See detailComparison of radiography , magnetic resonance imaging and surgical findings in dogs with elbow dysplasia
Snaps, Frédéric ULg; Balligand, Marc ULg; Saunders, J. et al

in American Journal of Veterinary Research (1997), 58(12), 1367-1370

Objective-To describe the magnetic resonance imaging (MRI) appearance of medial coronoid process and humeral condyle lesions in dysplastic cubital joints and to compare survey radiography and MRI for ... [more ▼]

Objective-To describe the magnetic resonance imaging (MRI) appearance of medial coronoid process and humeral condyle lesions in dysplastic cubital joints and to compare survey radiography and MRI for evaluation of fragmented medial coronoid process (FMCP) and lesions of the medial aspect of the humeral condyle (MAHC). Animals-18 dogs with elbow dysplasia. Procedure-Radiography of 22 cubital joints was performed. The 22 joints then underwent MRI. The scans were evaluated with regard to the shape and signal of the coronoid process; articular cartilage change, subchondral bone disruption of the MAHC. Surgical findings were used as the standard to calculate accuracy, sensitivity, specificity, and positive-and negative-predictive values for specific diagnosis of FMCP (free fragment) and lesions of the MAHC. Results-At surgery, 31.8% of the joints had FMCP (free), 36.4% had nondisplaced unmineralized coronoid process, and 27.2% had nondisplaced mineralized coronoid process, Eleven joints had lesions of the MAHC, and wear lesions were observed in 41% of the joints. On radiography, FMCP (free) was visualized in 9% of the joints and lesions of the MAHC were observed in 23%. MRI had the highest accuracy (95.5%), sensitivity (100%), and negative-predictive value (100%) for detection of FMCP (free), and had accuracy (91%), sensitivity (87.5%), specificity (92.5%), and positive (87.5%)- and negative (92.5%)- predictive values for detection of nondisplaced unmineralized coronoid process. Conclusions and Clinical relevance-Compared with radiography, MRI was useful for detection of nondisplaced unmineralized coronoid process; images consistently correlated with surgical findings. The technique is accurate and especially useful when radiographic findings are inconclusive. [less ▲]

Detailed reference viewed: 30 (5 ULg)
Peer Reviewed
See detailRéflexions sur l’iconologie de la châsse de saint Remacle
Van den Bossche, Benoît ULg

in Bulletin de la Société d’Art et d’Histoire du Diocèse de Liège (1997), LXII

Detailed reference viewed: 34 (6 ULg)
Full Text
Peer Reviewed
See detailLe comportement de reproduction du goujon, Gobio gobio, en aquarium
Poncin, Pascal ULg; Jeandarme, J.; Rinchard, J. et al

in Bull. Fr. Pêche Piscic. (1997)

Detailed reference viewed: 58 (1 ULg)
Full Text
Peer Reviewed
See detailOrigine sociale et réussite scolaire : un modèle en Chaîne de Markov estimé sur données individuelles belges
Donni, Olivier; Lejeune, Bernard ULg

in Recherches Economiques de Louvain (1997), 63(4), 421-446

Cet article étudie les relations entre l'origine socio-économique des élèves belges et leur parcours scolaire primaire et secondaire. Il repose sur l'hypothèse que le parcours scolaire des élèves peut ... [more ▼]

Cet article étudie les relations entre l'origine socio-économique des élèves belges et leur parcours scolaire primaire et secondaire. Il repose sur l'hypothèse que le parcours scolaire des élèves peut être décrit par un processus de Markov. Sur la base d'un échantillon transversal d'un millier d'enfants, en fonction de variables socio-économiques et pour chacune des années de scolarité obligatoire, les probabilités individuelles de poursuivre un parcours scolaire ''normal'', c.-à-d. sans redoublement ni relégation dans une filière de second choix, sont estimées. Nos résultats montrent que derrière les substantiels taux agrégés de redoublement qui caractérisent le système scolaire belge se cachent en fait de profondes inégalités sociales. [less ▲]

Detailed reference viewed: 324 (10 ULg)
Peer Reviewed
See detailFibres alimentaires chez le chien IV. Effets sur les ingestions, le poids, les matières fécales et sur la digestibilité des nutriments
Diez, Marianne ULg; Istasse, Louis ULg

in Annales de Médecine Vétérinaire (1997), 141

The present paper summarizes the influence of diets enriched with fibres on voluntary feed intakes, bodyweight changes of dogs and feces. Fibres affect nutrients digestibility by different mechanisms. The ... [more ▼]

The present paper summarizes the influence of diets enriched with fibres on voluntary feed intakes, bodyweight changes of dogs and feces. Fibres affect nutrients digestibility by different mechanisms. The induced changes vary according to the types of fibre-soluble, insoluble or both- and are, on the whole, quite similar with dogs as in other monogastric species. [less ▲]

Detailed reference viewed: 10 (1 ULg)
See detailLe Système d'informations sur la Biodiversité en Wallonie.
Dufrêne, Marc ULg

in Les cahiers des Réserves Naturelles RNOB (1997), 11

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detailMetacognitive Realism: A cognitive Style or a Learning Strategy?
Jans, Véronique; Leclercq, Dieudonné ULg

in British Journal of Educational Technology (1997), 17(1-2),

Identifies metacognitive realism as the accurate assessment by a learner of their knowledge on a subject. Considers whether realism in metacognition is a stable trait, and possible influences. Briefly ... [more ▼]

Identifies metacognitive realism as the accurate assessment by a learner of their knowledge on a subject. Considers whether realism in metacognition is a stable trait, and possible influences. Briefly reviews the literature and experimental evidence and concludes that metacognitive realism is both style and strategy. [less ▲]

Detailed reference viewed: 46 (7 ULg)
Full Text
Peer Reviewed
See detailSimulation of the morphology of the Jovian UV north aurora observed with the Hubble Space Telescope
Grodent, Denis ULg; Gladstone, G. R.; Gérard, Jean-Claude ULg et al

in Icarus: International Journal of Solar System Studies (1997), 128(2), 306-321

A model simulating Earth views of UV auroral arcs and diffuse emissions in the Jovian north polar region is described. It assumes a Chapman profile of vertical brightness distribution and various ... [more ▼]

A model simulating Earth views of UV auroral arcs and diffuse emissions in the Jovian north polar region is described. It assumes a Chapman profile of vertical brightness distribution and various horizontal structures, Simple geometric cases are described to illustrate the dependence on the altitude, atmospheric scale height, and central meridian planetary longitude (CML) of an idealized amoral morphology seen from Earth orbit, The numerical simulation makes it possible to assess the importance of limb brightening and the contribution from high altitude auroral emission located behind the planetary limb. As an application of the simulation model, four images obtained with the Wide Field and Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope are used to determine the characteristics of their auroral (discrete and diffuse) structures, The apparent brightness distribution along the arcs can only be reproduced if intrinsic longitudinal (or local time) variations are introduced, in addition to the path length effects of the viewing geometry, A composite average auroral distribution is built by mapping 10 WFPC2 images from the same dataset, It illustrates the dichotomy frequently observed between a narrow single structure are at System III longitudes larger than 180 degrees (or morning sector) and the multiple are and broad diffuse emission at longitudes less than 180 degrees (or afternoon sector), It is shown that the equatorial auroral emission boundary is located between the 6R(J) and the 30R(J) magnetic field line footprints of the Goddard Space Flight Center (GSFC) O-6 model. (C) 1997 Academic Press. [less ▲]

Detailed reference viewed: 17 (7 ULg)
Full Text
Peer Reviewed
See detailUse of the alpha parameter method to calculate matrix corrections for infinitely thick targets (TTPIXE) with two different incident beam energies
Delbrouck Habaru, J.; Roelandts, I.; Strivay, David ULg et al

in Nuclear Instruments & Methods in Physics Research Section B (1997), 129(1), 92-100

The alpha parameter correction method for calculating matrix effects in PIXE data does not require a priori knowledge of the major element composition of the matrix but implies the determination of a so ... [more ▼]

The alpha parameter correction method for calculating matrix effects in PIXE data does not require a priori knowledge of the major element composition of the matrix but implies the determination of a so-called alpha parameter linking two independent phenomena: X-ray absorption and proton energy loss. The method extrapolated to the infinitely thick targets (TTPIXE) has been previously studied using two PIXE measurements in two different geometric configurations. The present Study deals with the possibility of using pairs of PIXE measurements at two different energies to obtain the alpha corresponding to thick samples (TTPIXE). The experimental conditions and error minimization problems are discussed. General tables allowing an easy use of the method are presented. [less ▲]

Detailed reference viewed: 36 (0 ULg)
Peer Reviewed
See detailAdjusting to changes in the time of reinforcement: peak-interval transitions in rats.
Lejeune, H.; Ferrara, André ULg; Simons, F. et al

in Journal of Experimental Psychology. Animal Behavior Processes (1997), 23(2), 211-31

Thirty rats received training on a peak-interval procedure, where a baseline with a 20-s time of reinforcement was interspersed among cyclic transitions to other reinforcement time values (10, 20, 30, or ... [more ▼]

Thirty rats received training on a peak-interval procedure, where a baseline with a 20-s time of reinforcement was interspersed among cyclic transitions to other reinforcement time values (10, 20, 30, or 40 s), each of which was either in force for only a single session or for 3 sessions. Peak times were close to the time of reinforcement on the 20-s baseline and tracked the new reinforcement times both closely (but not exactly) and very rapidly. Peak time during transitions was affected by the criterion value in force on the previous session, exhibiting a proactive interference effect. Analysis of individual peak times during a session showed that transitions from lower to higher reinforcement time values were usually characterized by abrupt jumps in peak time, whereas descending transitions were mostly smooth but rapid. [less ▲]

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailInfestation par Paramphistomum sp. chez le bovin : description d'un premier cas en Belgique
Losson, Bertrand ULg; Cassart, Dominique ULg; Mignon, Bernard ULg

in Annales de Médecine Vétérinaire (1997), 142

Detailed reference viewed: 112 (14 ULg)
Full Text
See detailLes peuplements à graines. Concept, réglementations et mise en oeuvre.
Vanslembrouck, C.; Rondeux, Jacques ULg

in Silva Belgica (1997), 104(4), 17-21

La rentabilité de la propriété forestière qui, dans une large mesure, conditionne la pérennité des forêts gérées intensivement fait de plus en plus l'objet des préoccupations des chercheurs, sylviculteurs ... [more ▼]

La rentabilité de la propriété forestière qui, dans une large mesure, conditionne la pérennité des forêts gérées intensivement fait de plus en plus l'objet des préoccupations des chercheurs, sylviculteurs, gestionnaires et responsables des politiques forestières. Dans ce contexte, lorsqu'il s'agit de la création et de l'enrichissement de peuplements, veiller à respecter la meilleure adéquation possible entre le sol et l'essence n'est pas tout, encore faut-il ensuite utiliser un matériel génétique de qualité en particulier lors de régénérations artificielles. C'est à ce dernier point, et plus particulièrement aux peuplements à graines, que les lignes suivantes sont consacrées. Nous envisagerons successivement ce qu'il convient communément d'entendre par peuplement à graines (§ 2), sa raison d'être (§ 3) et le processus d'identification de celui-ci (§ 4) avant de tirer quelques brèves conclusions. [less ▲]

Detailed reference viewed: 14 (4 ULg)
Full Text
Peer Reviewed
See detailSur la piste de Bruegel en Italie : les pièces de l'enquête
Allart, Dominique ULg

in Bollettino d'Arte (1997), 100

Detailed reference viewed: 42 (6 ULg)
Full Text
Peer Reviewed
See detailObserved trends in total vertical column abundances of atmospheric gases from IR solar spectra recorded at the Jungfraujoch
Mahieu, Emmanuel ULg; Zander, Rodolphe ULg; Delbouille, Luc et al

in Journal of Atmospheric Chemistry (1997), 28(1-3), 227-243

Since 1984, about 15 000 high quality infrared solar spectra have been recorded with state-of-the-art grating and Fourier transform spectrometers at the International Scientific Station of the ... [more ▼]

Since 1984, about 15 000 high quality infrared solar spectra have been recorded with state-of-the-art grating and Fourier transform spectrometers at the International Scientific Station of the Jungfraujoch, Switzerland. Nonlinear least squares spectral curve fitting of selected microwindows containing isolated and well characterized lines of 20 telluric gases have allowed to retrieve their total vertical column abundances above the station, leading to observational data bases essential to derive long- and short-term changes experienced by these species during the last 12 years. In this paper, we focus on atmospheric gases of particular interest within the context of the EUROTRACTOR (Tropospheric Ozone Research) project; secular evolution as well as seasonal cycles of the minor constituents CH4, CO and of the trace gases C2H6, OCS, C2H2, HCN and H2CO are reported and discussed. The long-lived N2O is included as a tracer of the dynamic activity of the atmosphere. [less ▲]

Detailed reference viewed: 49 (24 ULg)
See detailPreuve et conséquences de la séparation de fait en matière d’assujettissement et d’établissement de l’impôt des personnes physiques
Orban, Lionel ULg

in Commission Université-Palais – Formation permanente – Droit fiscal. Volume XIV – Février 1997 (1997)

Detailed reference viewed: 96 (2 ULg)
See detailThe Gospel Sound (Columbia Legacy 475884-2)
Sacré, Robert ULg

in Les Cahiers du Jazz (1997), 10

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailSédimentologie des Formations de Marteau, du Bois d'Ausse et de la partie inférieure de la Formation d'Acoz (Dévonien inférieur) dans l'Est de la Belgique, au bord nord de Massif de Stavelot
Goemara, E.; Catot, E.; Dejonghe, L. et al

in Memoirs of the Geological Survey of Belgium (1997), 42

Detailed reference viewed: 39 (3 ULg)
Full Text
Peer Reviewed
See detailFirst epidemiological data on pathogenic leptospires isolated on the Azorean islands
Collares-Pereira, Margarida; Korver, H.; Terpstra, W. J. et al

in European Journal of Epidemiology (1997), 13

Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) from different islands of the Azores archipelago were found to carry three distinct Leptospira interrogans s ... [more ▼]

Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) from different islands of the Azores archipelago were found to carry three distinct Leptospira interrogans s.l. serovars (copenhageni, icterohaemorrhagiae and ballum) which have never been previously investigated there. The house mouse and the black rat were the major Leptospira reservoir showing isolation rates ranging from 0% for both species (in Graciosa) to 88 % and 33 %, respectively (in São Miguel). This study also showed that the majority of the animals with positive kidney cultures exhibited specific agglutinins agaibst the isolated strains of Leptospira. The observed isalation rates in the different islands, with a very interesting island variation in prevalence, suggest that small mammals, serving as sylvatic reservoirs of pathogenic leptospires, may represent an important risk to the health of humans and the livestock, particularly in the islands of Terceira and São Miguel. [less ▲]

Detailed reference viewed: 19 (2 ULg)
Peer Reviewed
See detailAn Easy Way to Increase the Finite-Sample Efficiency of the Resampled Minimum Volume Ellipsoid Estimator
Croux, Christophe ULg; Haesbroeck, Gentiane ULg

in Computational Statistics & Data Analysis (1997), 25

In a robust analysis, the minimum volume ellipsoid (MVE) estimator is very often used to estimate both multivariate location and scatter. The MVE estimator for the scatter matrix is defined as the ... [more ▼]

In a robust analysis, the minimum volume ellipsoid (MVE) estimator is very often used to estimate both multivariate location and scatter. The MVE estimator for the scatter matrix is defined as the smallest ellipsoid covering half of the observations, while the MVE location estimator is the midpoint of that ellipsoid. The MVE estimators can be computed by minimizing a certain criterion over a high-dimensional space. In practice, one mostly uses algorithms based on minimization of the objective function over a sequence of trial estimates. One of these estimators uses a resampling scheme, and yields the (p + 1)-subset estimator. In this note, we show how this estimator can easily be adapted, yielding a considerable increase of statistical efficiency at finite samples. This gain in precision is also observed when sampling from contaminated distributions, and it becomes larger when the dimension increases. Therefore, we do not need more computation time nor do we lose robustness properties. Moreover, only a few lines have to be added to existing computer programs. The key idea is to average over several trials close to the optimum, instead of just picking out the trial with the lowest value for the objective function. The resulting estimator keeps the equivariance and robustness properties of the original MVE estimator. This idea can also be applied to several other robust estimators, including least-trimmed-squares regression. [less ▲]

Detailed reference viewed: 18 (5 ULg)
Full Text
Peer Reviewed
See detailGalectin-3 and laminin expression in neoplastic and non-neoplastic thyroid tissue.
Fernandez, P. L.; Merino, M. J.; Gomez, M. et al

in Journal of Pathology (The) (1997), 181(1), 80-6

Galectin-3 is a 31 kD beta-galactoside-binding lectin which is expressed by several types of non-neoplastic and neoplastic cells and which may be involved in cell-extracellular matrix interactions. An ... [more ▼]

Galectin-3 is a 31 kD beta-galactoside-binding lectin which is expressed by several types of non-neoplastic and neoplastic cells and which may be involved in cell-extracellular matrix interactions. An immunohistochemical study has been made of the expression of galectin-3, as well as its ligand, laminin, in a spectrum of benign and malignant thyroid neoplasms and in some non-neoplastic conditions. Immunohistochemistry with anti-human recombinant galectin-3 antibody showed consistent, intense positivity in the neoplastic cells of 18 cases of papillary carcinoma and less intense staining in the five anaplastic carcinomas studied. In addition, two out of three poorly differentiated carcinomas, three out of six medullary carcinomas, and four out of eight follicular carcinomas had less intense or focal positivity. One case of Hurthle cell carcinoma showed scattered strongly positive cells. Eight follicular adenomas, three hyperplastic nodules, five nodular goitres, and normal thyroid tissue were negative. Galectin-3 mRNA expression was also evaluated in three of the papillary carcinomas, two follicular adenomas, and one hyperplastic nodule with matched normal tissue. Northern blot analysis demonstrated mRNA overexpression in the three cases of papillary carcinomas, whereas normal and benign tissues were negative. Laminin distribution in neoplastic and non-neoplastic tissue varied with architectural patterns but did not correlate with galectin-3 immunohistochemical expression. We conclude that expression of galectin-3 is limited to inflammatory foci in normal and benign thyroid tissue and is a phenotypic feature of malignant thyroid neoplasms, especially papillary carcinomas. [less ▲]

Detailed reference viewed: 5 (1 ULg)
Peer Reviewed
See detailContemporary Crisis of the Nation State ? - J. Dunn
Martiniello, Marco ULg

in Ethnic and Racial Studies (1997), 20(1), 210-211

Detailed reference viewed: 55 (0 ULg)
Full Text
Peer Reviewed
See detailAntibodies against vaccinia virus do not neutralize extracellular enveloped virus but prevent virus release from infected cells and comet formation
Vanderplasschen, Alain ULg; Hollinshead, M.; Smith, G. L.

in Journal of General Virology (The) (1997), 78(Pt 8), 2041-2048

Detailed reference viewed: 6 (0 ULg)
See detailProtection possessoire et convention. Quand l'usufruitier devient bailleur
Lecocq, Pascale ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1997)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailDynamique de défense du nid chez Symphodus ocellatus (Forsskål, 1775), poisson labridé méditerranéen. I. Comportements agonistiques entre le mâle territorial nidificateur et cinq autres espèces de labridés
Ylieff, Marc ULg; Michel, Christian ULg; Voss, Jacques

in Cahiers d'Ethologie (1997), 17(1), 49-74

This research in the field consists of a study of interspecific agonistic behaviour of territorial male in Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions ... [more ▼]

This research in the field consists of a study of interspecific agonistic behaviour of territorial male in Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions involving Symphodus ocellatus towards S. tinca, S. mediterraneus, S. roissali, Thalassoma pavo et Coris julis were investigated. The questions of interest were: (1) aggressors or intruders motivations (predation of the brood (a) and/or territorial conflicts (b)), (2) the recognition of this or that species (recognition studied with selective attacks by territorial male), (3) the organ(s) of perception used for this recognition and (4) the importance of territorial male investment in nest defense; this role could ensure a successful reproduction of the species. Our observations and experimentations (tested labrid fishes presented to T. males) allow us to affirm that in S. ocellatus, nesting territorial males recognize the various tested labrid fishes; that the organ of perception used for social recognition is the visual channel; that spawn protection insured by territorial male, a task guided by his visual system, is necessary towards menace of his congeners, but also the other fishes living in his habitat. Nevertheless, if it’s becoming clear that the Mediterranean labrid fishes have the ability to recognize and preferentially interact with particular individuals, the answer of the question 1, concerning aggressors motivations, is not yet clearly known. [less ▲]

Detailed reference viewed: 35 (8 ULg)
Full Text
Peer Reviewed
See detailImmunohistochemical analysis of proliferative activity and steroid receptor expression in peritoneal and ovarian endometriosis
NISOLLE, Michelle ULg; Casanas-Roux, Françoise; Donnez, Jacques

in Fertility and Sterility (1997), 68(5), 912-919

Objective: To assess the proliferative activity of eutopic and ectopic endometrium throughout the menstrual cycle and its correlation to steroid receptor content. Design: The immunohistochemical use of Ki ... [more ▼]

Objective: To assess the proliferative activity of eutopic and ectopic endometrium throughout the menstrual cycle and its correlation to steroid receptor content. Design: The immunohistochemical use of Ki 67 was applied to investigate the proliferation index. A recently advanced stereographic computer technology was used to investigate steroid receptors. Setting: University hospital department of gynecology. Patient(s): Biopsies of eutopic endometrium, black and red peritoneal endometriotic lesions, and ovarian endometriomas were taken from infertile patients and classified according to the phase of the cycle. Result(s): In normal endometrium, the glandular proliferation index was highest during the proliferative phase and was statistically significantly reduced during the secretory phase. No proliferative activity was observed in the late secretory phase. No statistically significant differences were found between ectopic endometrium and eutopic endometrium except during the late secretory phase, when proliferative activity was still present in endometriotic tissue. The stromal proliferation index was similar in red lesions, ovarian endometriomas, and eutopic endometrium during the secretory phase. In normal endometrium, the highest concentrations of estrogen receptors (ERs) and P receptors (PRs) occurred in the epithelial and stromal cells during the late proliferative phase of the menstrual cycle. Estrogen receptor and PR content declined throughout the secretory phase. In ectopic endometrium, PR persisted in the glandular epithelium during the late secretory phase. Estrogen receptors persisted in the glandular epithelium and stroma of red peritoneal lesions and ovarian endometriomas during the late secretory phase. Conclusion(s): The high proliferative activity and the persistence of ERs and PRs in the stroma of red lesions and ovarian endometriomas emphasize the primordial role of the stroma in the development of endometriosis and suggest different mechanisms of proliferation control from those observed in eutopic endometrium. [less ▲]

Detailed reference viewed: 4 (0 ULg)
Full Text
See detailNouvelles recherches dans le site magdalénien du Trou da Somme (Hastière)
López Bayón, Ignacio; Léotard, Jean-Marc; Otte, Marcel ULg et al

in Notae Praehistoricae (1997), 17

Detailed reference viewed: 23 (0 ULg)
Full Text
Peer Reviewed
See detailLes taxanes : un nouvelle classe d'agents cytotoxiques
Jerusalem, Guy ULg; Fillet, Georges ULg

in Médecine et Hygiène (1997), 55

Paclitaxel et docetaxel sont de novueaux agents cytotoxiques qui présentent un mécanisme d'action tout à fait original. Les taxanes favorisent la polymérisation des dimères alpha et bêta de la tubuline et ... [more ▼]

Paclitaxel et docetaxel sont de novueaux agents cytotoxiques qui présentent un mécanisme d'action tout à fait original. Les taxanes favorisent la polymérisation des dimères alpha et bêta de la tubuline et sont responsables d'anomalies stables de la structure des microtubules ainsi que de la formation anarchique de nombreux astères non fonctionnels. Des résultats encourageants sont observés dans le traitement de deuxième ligne d'une grande variété de cancers. La toxicité est acceptable si l'on utilise une prémédication anti-allergique. Le paclitaxel est indiqué dans le traitement de première ligne du cancer ovarien avancé et de deuxième ligne du cancer du sein métastatique réfractaire aux anthracyclines. Le remboursement dans d'autres indications est à l'étude dans les années à venir. [less ▲]

Detailed reference viewed: 71 (1 ULg)
See detailThe Color Purple - les Blues Pourpres d'Alice Walker
Sacré, Robert ULg

in Les Cahiers du Jazz (1997), 12

Un livre (1982) - un film ( Steven Spielberg, 1985)

Detailed reference viewed: 21 (12 ULg)
See detailNos élèves préfèrent Pythagore à Newton
Monseur, Christian ULg

in Pilotinfo (1997), 20(septembre),

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailCalibration of a finite element model for bolted endplate steel connections
Bursi, O.; Jaspart, Jean-Pierre ULg

in Journal of Constructional Steel Research (1997), 44(No 3), 225-262

Detailed reference viewed: 21 (0 ULg)
Peer Reviewed
See detailIn search of the Latin American Faulkner
Vanden Berghe, Kristine ULg

in Target : International Journal of Translation Studies (1997), 9(2), 399-400

Detailed reference viewed: 16 (1 ULg)
Full Text
Peer Reviewed
See detailUretero-arterial fistula: two observations.
VAN DAMME, Hendrik ULg; KEPPENNE, Véronique ULg; SakalihasanN, Natzi ULg et al

in Acta Chirurgica Belgica (1997), 97(3), 133-6

Two cases of life-threatening haematuria, secondary to an uretero-arterial fistula, are reported. Both cases present predisposing causative factors. One patient had a combination of previous aorto ... [more ▼]

Two cases of life-threatening haematuria, secondary to an uretero-arterial fistula, are reported. Both cases present predisposing causative factors. One patient had a combination of previous aorto-bifemoral bypass grafting, an iliac artery aneurysm (retrogradely perfused), and an indwelling ureteral stent for ureteral compression. The other patient had previous aortoiliac surgery and obstructive uropathy with chronic urinary tract infection. Preoperative diagnosis of uretero-arterial fistula was made in only one patient. He was successfully operated (exclusion of the iliac aneurysm). In the other patient, nephrectomy was attempted to control reno-ureteral bleeding of unknown origin. Fatal recidive of brisk haematuria occurred some days later. Factors contributing to the development of uretero-arterial fistula, their diagnosis and optimal treatment are discussed. [less ▲]

Detailed reference viewed: 27 (1 ULg)
Full Text
Peer Reviewed
See detailSynthesis and characterization of monodisperse spherical zirconia particles
Van Cantfort, Olivier; Michaux, Bernard; Pirard, René ULg et al

in Journal of Sol-Gel Science and Technology (1997), 8

Detailed reference viewed: 29 (3 ULg)
Full Text
Peer Reviewed
See detailA novel virus blinding assay using confocal microscopy: demonstration that the intracellular and extracellular vaccinia virions bind to different cellular receptors
Vanderplasschen, Alain ULg; Smith, G. L.

in Journal of Virology (1997), 71

Vaccinia virus (VV) produces two antigenically and structurally distinct infectious virions, intracellular mature virus (IMV) and extracellular enveloped virus (EEV), which bind to unidentified and ... [more ▼]

Vaccinia virus (VV) produces two antigenically and structurally distinct infectious virions, intracellular mature virus (IMV) and extracellular enveloped virus (EEV), which bind to unidentified and possibly different cellular receptors. Studies of VV binding have been hampered by having two infectious virions and by the rupture of the EEV outer membrane in the majority of EEV virions during purification. To overcome these problems, we have developed a novel approach to study VV binding that is based on confocal microscopy and does not require EEV purification. In this assay, individual virus particles adsorbed to the cell are simultaneously distinguished and quantified by double immunofluorescence labelling with antibody markers for EEV and IMV. By this method, we show unequivocally that IMV and EEV bind to different cellular receptors. Three independent observations allow this conclusion. First, the efficiencies with which IMV and EEV bind to different cell lines are unrelated; second, cell surface digestion with some enzymes affects IMV and EEV binding differently; and third, the binding of a monoclonal antibody to cells prevents IMV binding but not EEV binding. This technique may be widely applicable for studying the binding of different viruses. [less ▲]

Detailed reference viewed: 26 (0 ULg)
Full Text
Peer Reviewed
See detailAutomatic external filling for the ion source gas bottle of a Van de Graaff accelerator
Bastin, Thierry ULg; Dehove, C.; Dumont, Paul-Dominique ULg et al

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (1997), 129

We describe a fully automatic system we developed to fill, from an external gas bottle, the ion sourer terminal gas storage bottle of a 2 MV Van de Graaff accelerator without depressing the 25 bar ... [more ▼]

We describe a fully automatic system we developed to fill, from an external gas bottle, the ion sourer terminal gas storage bottle of a 2 MV Van de Graaff accelerator without depressing the 25 bar insulating gas. The system is based on a programmable automate ordering electropneumatical valves. The only manual operation is the connection of the external gas cylinder. The time needed for a gas change is reduced to typically 15 min (depending on the residual pressure wished for the gas removed from the terminal bottle). To check this system we study the ionic composition of the ion beam delivered by our accelerator after different gas changes. The switching magnet of our accelerator was used to analyse the ionic composition of the accelerated beams in order to verify the degree of elimination of the previous gases in the system. (C) 1997 Elsevier Science B.V. [less ▲]

Detailed reference viewed: 43 (8 ULg)
Full Text
See detailLes aspects thérapeutiques de l'HTA
Krzesinski, Jean-Marie ULg

in Médisphère (1997), 68

Traiter l'hypertension artérielle n'améliore pas seulement le pronostic cardiovasculaire. L'étude de Wiklund (Suède) à partir de la population étudiée dans la Hot Study a permis de montrer que l ... [more ▼]

Traiter l'hypertension artérielle n'améliore pas seulement le pronostic cardiovasculaire. L'étude de Wiklund (Suède) à partir de la population étudiée dans la Hot Study a permis de montrer que l'abaissement de la pression artérielle améliorait l'humeur des hypertendus et ce, proportionnellement à la correction du niveau tensionnel. [less ▲]

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailRoquentin et les types sans importance sociale
Denis, Benoît ULg

in Etudes Françaises (1997), XXXIII(3), 105-119

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailDietary fibre in dogs diet : comparisons between cellulose, pectin, guar gum, and between two incorporation rates of guar gum
Diez, Marianne ULg; Van Eenaeme, Christian ULg; Hornick, Jean-Luc ULg et al

in Journal of Animal Physiology & Animal Nutrition (1997), 78

Ausgewachsene Beagle-Hunde erhielten eine Kontrolldiaet (I) aus Hackfleisch und Reis oder mit Cellulose (II), Pektin (III) bzw. Guar (IV) angereicherte Diaeten mit einem Anteil von 3.4% in der ... [more ▼]

Ausgewachsene Beagle-Hunde erhielten eine Kontrolldiaet (I) aus Hackfleisch und Reis oder mit Cellulose (II), Pektin (III) bzw. Guar (IV) angereicherte Diaeten mit einem Anteil von 3.4% in der Trockenmasse. Bei Diaet IV tendierte die Magenentleerungsrate zu niedrigeren Werten. Die intestinale Absorption von Xylose wurde durch die Diaeten IV und III nicht beeinflusst, aber durch Diaet II sign. verlangsamt. Die Varianten III und IV fuehrten zu geringeren Trockenmassegehalten im Kot(p less than 0.001). Die zugefuehrten Faserstoffe senkten teilweise die Naehrstoffverdaulichkeit. Die preprandialen Plasmakonzentrationen an Glucose, Insulin, alpha-Amino-N, Harnstoff und Triglyceriden blieben unbeeinflusst. Die Diaet IV bewirkte einen deutlichreduzierten postprandialen Anstieg von alpha-Amino-N (p less than 0.05) und Harnstoff (p less than 0.01) im Plasma sowie geringere Cholesteringehalte bei gefuetterten und nuechternen Tieren (p less than 0.05). Ein weiterer Versuch mit 3.5% bzw. 7% Guaranteil in der Diaet zeigte dosisabhaengige Effekte. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailTheoretical study of slope effects in resistivity surveys and applications
Sahbi, Hassan; Jongmans, Denis; Charlier, Robert ULg

in Geophysical Prospecting (1997), 45(5), 795-808

When electric soundings are made over an irregular terrain, topographic effects can influence the values of apparent resistivity and lead to erroneous 1D interpretation. A 3D finite-element method has ... [more ▼]

When electric soundings are made over an irregular terrain, topographic effects can influence the values of apparent resistivity and lead to erroneous 1D interpretation. A 3D finite-element method has been applied to study the topographical effect of a slope on Schlumberger soundings parallel to the strike. When the resistivity survey is performed at the top of the slope, the apparent resistivity values can be two times higher than in the flat-earth case, depending on the angle (alpha) and height (H) of the slope, and on the distance (X) between the sounding and the slope top. The results are presented as nondimensional curves which can be used for evaluating topographic anomalies for any value of the parameters alpha, H and X. It is numerically shown that the topographic effects can be removed from measurements on horizontally layered structures with an irregular earth surface. Real measurements were performed in different geological conditions over an irregular terrain. The correction method based on the nondimensional curves has been applied to the data and has enabled the determination of the correct layered ground configuration using 1D interpretation. [less ▲]

Detailed reference viewed: 57 (0 ULg)
Peer Reviewed
See detailThe Nucleotide Sequence Of Saccharomyces Cerevisiae Chromosome Xv
Dujon, B.; Albermann, K.; Aldea, M. et al

in Nature (1997), 387(6632),

Detailed reference viewed: 34 (2 ULg)
Peer Reviewed
See detailAlternative techniques of hysterectomy.
NISOLLE, Michelle ULg; Donnez, Jacques

in New England Journal of Medicine [=NEJM] (1997), 336(4), 291-2

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailFibres alimentaires chez le chien V. Effets sur le métabolisme glucidique. Application dans le traitement du diabète
Diez, Marianne ULg; Istasse, Louis ULg

in Annales de Médecine Vétérinaire (1997), 141

Some dietary fibres are characterized by hypoglycaemic and hypoinsulinemic effects in humans and in carnivores. At present, these properties are used in the treatment of diabetes mellitus in both species ... [more ▼]

Some dietary fibres are characterized by hypoglycaemic and hypoinsulinemic effects in humans and in carnivores. At present, these properties are used in the treatment of diabetes mellitus in both species. Finally, the dietary treatment of the diabetic dog is presented with a particular emphasis on the use of dietary fibres. [less ▲]

Detailed reference viewed: 25 (1 ULg)
Full Text
Peer Reviewed
See detailTextural properties and thermal stability of silica-zirconia aerogels
Pirard, René ULg; Bonhomme, Damien; Kolibos, Sofia et al

in Journal of Sol-Gel Science and Technology (1997), 8

Detailed reference viewed: 42 (8 ULg)
Full Text
Peer Reviewed
See detailOnset Time of Neuromuscular Block and Intubating Conditions: Influence of Different Stimulation Patterns
Hans, Pol ULg; Dewé, Walthère ULg; Albert, Adelin ULg

in Acta Anaesthesiologica Belgica (1997), 48(1), 15-21

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailLow Thiamine Diphosphate Levels in Brains of Patients with Frontal Lobe Degeneration of the Non-Alzheimer's Type
Bettendorff, Lucien ULg; Mastrogiacomo, Frank; Wins, Pierre et al

in Journal of Neurochemistry (1997), 69(5), 2005-2010

We compared the thiamine and thiamine phosphate contents in the frontal, temporal, parietal, and occipital cortex of six patients with frontal lobe degeneration of the non-Alzheimer's type (FNAD) or ... [more ▼]

We compared the thiamine and thiamine phosphate contents in the frontal, temporal, parietal, and occipital cortex of six patients with frontal lobe degeneration of the non-Alzheimer's type (FNAD) or frontotemporal dementia with five age-, postmortem delay-, and agonal status-matched control subjects. Our results reveal a 40-50% decrease in thiamine diphosphate (TDP) in the cortex of FNAD patients, whereas thiamine monophosphate was increased 49-119%. TDP synthesizing and hydrolyzing enzymes were unaffected. The activity of citrate synthase, a mitochondrial marker enzyme, was decreased in the frontal cortex of patients with FNAD, but no correlation with TDP content was found. These results suggest that decreased contents of TDP, which is essentially mitochondrial, is a specific feature of FNAD. As TDP is an essential cofactor for oxidative metabolism and neurotransmitter synthesis, and because low thiamine status (compared with other species) is a constant feature in humans, a nearly 50% decrease in cortical TDP content may contribute significantly to the clinical symptoms observed in FNAD. This study also provides a basis for a trial of thiamine, to improve the cognitive status of the patients. [less ▲]

Detailed reference viewed: 18 (1 ULg)
Peer Reviewed
See detailFibres alimentaires chez le chien VI. Effets sur le métabolisme lipidique, les sécrétions biliaires et application dans le traitement de l'obésité
Diez, Marianne ULg; Istasse, Louis ULg

in Annales de Médecine Vétérinaire (1997), 141(5), 363-372

Dietary fibres are able to affect lipids profiles in humans. The soluble and partly soluble fibres have mainly been studied in this purpose. Although hyperlipidaemia are known in dogs, there are few ... [more ▼]

Dietary fibres are able to affect lipids profiles in humans. The soluble and partly soluble fibres have mainly been studied in this purpose. Although hyperlipidaemia are known in dogs, there are few studies on the subject. The mechanisms by which fibres are involved are discussed with a particular emphasis on bile secretion. [less ▲]

Detailed reference viewed: 19 (0 ULg)