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See detailComment utiliser l'hypnose en anesthésie
Faymonville, Marie ULg; Joris, Jean ULg; Lamy, Maurice ULg

in Praticien en Anesthésie Réanimation (Le) (2000), 4(6), 345-348

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See detailLinear growth and final height after treatment for Cushing's disease in childhood.
LEBRETHON, Marie-Christine ULg; Grossman, A. B.; Afshar, F. et al

in The Journal of clinical endocrinology and metabolism (2000), 85(9), 3262-5

Cushing's disease is associated with growth failure in childhood and adolescence. Growth and final height were analyzed in 10 patients who were cured or in remission after treatment of Cushing's disease ... [more ▼]

Cushing's disease is associated with growth failure in childhood and adolescence. Growth and final height were analyzed in 10 patients who were cured or in remission after treatment of Cushing's disease. Seven males and 3 females, aged 6.8-17.6 yr (bone age, 3.3-15.4 yr), had transsphenoidal surgery, which was combined with pituitary irradiation (4,500 cGy in 25 fractions) in 5 patients. At presentation, 5 patients were prepubertal (males), and 5 were pubertal (2 males and 3 females). The mean height SD score was -2.15 +/-1.26 (range, -0.21 to -4.32) compared with mean target height SD score of -0.43 +/- 0.58. Height velocity in 6 patients was subnormal (0.9-3.8 cm/yr). After treatment, short-term height velocity, over a mean interval of 0.57 yr, in 8 patients not receiving human GH (hGH) therapy, was variable (range, 0.8-7.6 cm/yr). GH stimulation tests (insulin tolerance test/glucagon) in 9 subjects showed peak GH levels of 0.5-20.9 mU/L. Eight were treated with hGH (14 IU/m2 wk), combined in 2 girls and 1 boy with a GnRH analog. After 1 yr of hGH, the mean height SD score had increased from -2.45 +/- 1.0 at initiation of hGH to -2.07 +/- 1.2 (P = 0.01). GH therapy was continued until final height or latest assessment. The mean final height SD score (n = 6) was - 1.24 +/- 1.38, and at the latest assessment the mean height SD score (n = 4) was - 1.52 +/- 1.33. Combining these 2 groups, the mean height so score was -1.36 +/- 1.29. The difference between final or latest height SD score and target height SD score was 0.93 +/- 1.13, i.e. less (P = 0.005) than the difference between height and target height SD score of 1.72 +/- 1.26 at presentation. In conclusion, catch-up and favorable long-term growth was seen after treatment for Cushing's disease. Posttreatment GH deficiency was frequent, and early hGH replacement may have contributed to the encouraging outcome. [less ▲]

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See detailPhylogenetic analysis of the pearlfish Carapini (Ophidiiformes, Carapidae)
Parmentier, Eric ULg; Castillo Cabello, Gabriel ULg; Chardon, Michel ULg et al

in Acta Zoologica (2000), 81

Fishes of the tribe Carapini (Encheliophis and Carapus) share a noteworthy peculiarity: they shelter in holothurian echinoderms or bivalve hosts. Some species are considered parasitic, others commensal ... [more ▼]

Fishes of the tribe Carapini (Encheliophis and Carapus) share a noteworthy peculiarity: they shelter in holothurian echinoderms or bivalve hosts. Some species are considered parasitic, others commensal. This study focuses on the phylogeny of the tribe, using two other Carapidae species as an outgroup (Snyderidia canina and Onuxodon fowleri). Insofar as possible, the selected anatomical and behavioural characters where chosen in an ecomorphological perspective, as features that could be responses to various lifestyle-related constraints. Our character selection also took into account the fact that some features are (presumably) linked. Such features were grouped together as a single trait to avoid their overvaluation. This methodology enabled us to separate commensals from parasites, the former belonging to Carapus and the latter to Encheliophis. Carapus species reflect in their morphology the constraints imposed by a diet of hard, mobile, elusive prey, showing predator-type features: a strong dentition, a wide mouth opening, a robust food intake apparatus. On the other hand, the endoparasitic Encheliophis species show a generally weaker buccal apparatus and narrow mouth opening, in relation to the different constraints of their lifestyle where the diet constraints are less pronounced: they eat body parts of their host. We propose changes in both generic diagnoses and transfer three species from Encheliophis to Carapus. [less ▲]

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See detailRural Labor Flows in China
Florence, Eric ULg

in Revue Bibliographique de Sinologie = Review of Bibliography in Sinology (2000), Vol. XVIII

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See detailUse of stable isotope to delineate amphipod trophic status in Antarctic food webs
Nyssen, Fabienne ULg

in Polish Archives of Hydrobiology (2000), 47

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See detailBiocompatibility of polyethylene glycols (PEG): An approach using bovine serum albumin (BSA) as a protein model.
Loret, S; Gilson, P; Barakat, I et al

in Pflügers Archiv : European Journal of Physiology (2000), 440

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See detailEffect of nicotine on rat gingival fibroblasts in vitro
Lahmouzi, Jamila ULg; Simain-Sato, Franklin ULg; Defresne, Marie-Paule ULg et al

in Connective Tissue Research (2000), 41(1), 69-80

Nicotine from 3 to 5 mM affects growth and survival rate of rat gingival fibroblasts in vitro. Ultrastructural analysis revealed dilated mitochondria and vacuolization in treated cells, suggestive of ... [more ▼]

Nicotine from 3 to 5 mM affects growth and survival rate of rat gingival fibroblasts in vitro. Ultrastructural analysis revealed dilated mitochondria and vacuolization in treated cells, suggestive of necrosis, but increased apoptosis was also revealed by cytometry. On the basis of this in vitro study, it appear that tobacco, through its component nicotine, may directly affect various functions of rat gingival fibroblasts [less ▲]

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See detailOne session assessment of pulmonary arteries and peripheral veins by spiral CT angiography in acute pulmonary embolism
GHAYE, B; SZAPIRO, D; WILLEMS, V et al

in Resuscitation (2000), 45

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See detailLa Francophonie à travers les médias africains. Le cas de la région des Grands Lacs africains
Kabamba, Bob ULg

in Studia Diplomatica (2000), Vol. LIII: 2000(n°3),

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See detailLocal and Global Constraints in Finite Element Modeling and the Benefits of Nodal and Edge Elements Coupling
Dular, Patrick ULg

in International Compumag Society Newsletter (2000), 7(2), 4-7

Various constraints can be encountered in partial differential problems. On the one hand, there are local constraints, which locally act on fields. These are usually boundary conditions, fixing components ... [more ▼]

Various constraints can be encountered in partial differential problems. On the one hand, there are local constraints, which locally act on fields. These are usually boundary conditions, fixing components of fields, as well as interface conditions, connecting such components. On the other hand, global behaviors of fields can be constrained, leading to define global constraints. It is the case when vector field fluxes and circulations have to be defined, again in order to be either fixed or connected. A finite element model of a partial differential problem, through weak formulations, then leads to split up the considered constraints in two families, known as essential and natural constraints. This means that some constraints are strongly satisfied while others are only weakly satisfied. It is the aim of this paper to make a survey of local and global constraints encountered in finite element models of electromagnetic systems. It particularly points out the benefits of using both nodal and edge finite elements to achieve their consistent discrete definitions. There are indeed properties that are worth to be kept from the continuous to the discrete level. The constraints are defined in the frame of dual formulations in order to point out their dual, or complementary, natures. Systematic explicit characterizations of constrained function spaces are shown to be quite convenient. [less ▲]

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See detailTreatment outcome in infant acute lymphoblastic leukemia
Ferster, A; Benoit, Y; Francotte, N et al

in Blood (2000), 95(8), 2729-31

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See detailDavid Malouf's 'Voyaging Imagination': The Conversations at Curlow Creek
Maes-Jelinek, Hena ULg

in Commonwealth : Essays and Studies (2000), 23(1), 89-98

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See detailViroses tropicales éruptives
Fraiture, A. L.; Nikkels, Arjen ULg; Pierard-Franchimont, Claudine ULg et al

in Revue Médicale de Liège (2000), 55

Eruptive tropical viroses are severe diseases which may prove to be sometimes fatal diseases. They are characterized by erythémato-purpuric cutaneous lesions associated with hyperthermia. Polyarthralgia ... [more ▼]

Eruptive tropical viroses are severe diseases which may prove to be sometimes fatal diseases. They are characterized by erythémato-purpuric cutaneous lesions associated with hyperthermia. Polyarthralgia or severe haemorrhage can also be part of the clinical presentation. Rapid diagnosis and preventive measures are mandatory, particularly when human transmission is possible. [less ▲]

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See detailRecension: "Vade-Mecum de l'évaluation médico-légale"
Kohl, Benoît ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2000)

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See detailLa trisomie 21 : étude d’une stratégie de mémorisation
Frenkel, Stéphanie ULg

in Le Journal des Psychologues (2000), 182

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See detailRiboflavin (vitamin B2) as a prophylactic treatment for migraine
Schoenen, Jean ULg

in Medical Updates on Therapy, Diagnosis and Prevention (2000), 2

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See detailLaparoscopic treatment of endometriomas: cystectomy or suppression? Against laparoscopic cystectomy
Squifflet, Jean; NISOLLE, Michelle ULg; Donnez, Jacques

in Gynécologie Obstétrique & Fertilité (2000), 28(7-8), 586-7

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See detailIron Oxidation and Deposition in the Biofilm Covering Montacuta ferruginosa (Mollusca, Bivalvia).
Gillan, D.; Warnau, M.; De Vrind-De Jong, E. W. et al

in Geomicrobiology Journal (2000), 17(2), 141-150

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See detailEffectuer l'état des lieux, la réactivation et la rémédiation des bases de chimie à la charnière entre l'enseignement secondaire et l'Université sur http://www.ulg.ac.be/grptrans/
Müller, Robert; Cornélis, André; Cahay, René et al

in Bulletin de l'Association Belge des Professeurs de Physique et de Chimie (2000), (144), 30-40

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See detailIntégration du transfert de rugosité à un modèle de laminage à froid
Collette, Caroline; Counhaye, Christian; Ponthot, Jean-Philippe ULg

in Revue de Métallurgie [=Revue de Métallurgie. Cahiers d'Informations Techniques] (2000)

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See detailEntre stalle et prie-Dieu. La religieuse liégeoise en prière
Henneau, Marie-Elisabeth ULg

in Revue de l'Histoire des Religions (2000), 217(3), 327-344

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See detailRéhabilitation du pont barrage de Montignie-Saint-Christophe
Lejeune, André ULg; Pirotton, Michel ULg

in Cahiers de l'Urbanisme (Les) (2000)

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See detailHistory is a fiction. Quentin Legrand talks with Johan Muyle and CarlHavelange
Havelange, Carl ULg

in Janus. Magazine on art and culture (2000), 2000(4), 7-13

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See detailLa douleur pelvienne chez le patient oncologique
Jansen, Nicolas ULg; Nickers, Philippe ULg; Devoghel, Jean-Claude ULg

in Oncologie (2000), 2(4), 187-200

Pelvic pain is a common problem in the general population. In cancer patients this pain can be secondary to tumor activity or recent tumor related interventions (surgery, radiotherapy, chemotherapy). On ... [more ▼]

Pelvic pain is a common problem in the general population. In cancer patients this pain can be secondary to tumor activity or recent tumor related interventions (surgery, radiotherapy, chemotherapy). On the other hand cancer patients can also suffer from not cancer related pain. Cancer related pain is often chronic. Whatever the cause of this pain, an important psychological factor is often present, if not attributing to the pathogenesis of the pain, then as an secondary effect from the pain. Managing pelvic pain requires knowledge of the regional anatomy. A general overview is given of the approach to an oncological patient presenting with pelvic pain. Three different possibilities are discussed: (1) pain in a patient without a presently known pelvic or abdominal malignancy, (2) pain in a patient treated recently for a tumor in the pelvic area or lower abdomen, (3) pain in an so far untreated patient with a known tumor. Finally an overview of treatment options is presented. [less ▲]

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See detailKinetic and spectroscopic characterization of native and metal-substituted beta-lactamase from Aeromonas hydrophila AE036.
Hernandez Valladares, M.; Kiefer, M.; Heinz, U. et al

in FEBS letters (2000), 467(2-3), 221-5

Two metal ion binding sites are conserved in metallo-beta-lactamase from Aeromonas hydrophila. The ligands of a first zinc ion bound with picomolar dissociation constant were identified by EXAFS ... [more ▼]

Two metal ion binding sites are conserved in metallo-beta-lactamase from Aeromonas hydrophila. The ligands of a first zinc ion bound with picomolar dissociation constant were identified by EXAFS spectroscopy as one Cys, two His and one additional N/O donor. Sulfur-to-metal charge transfer bands are observed for all mono- and di-metal species substituted with Cu(II) or Co(II) due to ligation of the single conserved cysteine residue. Binding of a second metal ion results in non-competitive inhibition which might be explained by an alternative kinetic mechanism. A possible partition of metal ions between the two binding sites is discussed. [less ▲]

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See detailSome influences of sediments in aerated lagoons and waste stabilization ponds
Chabir, D.; El Ouarghi, H.; Brostaux, Yves ULg et al

in Water Science & Technology (2000), 42(10), 237-246

Respirometric tests have been undertaken on sediments in aerated lagoons and waste stabilization ponds to quantify their oxygen demand and to determine the main factors governing the process. Factors such ... [more ▼]

Respirometric tests have been undertaken on sediments in aerated lagoons and waste stabilization ponds to quantify their oxygen demand and to determine the main factors governing the process. Factors such as seasonal variations, temperature, substrate, sediment layer thickness, density of macro-invertebrates and suspended sediments were investigated. The results showed that temperature and substrate concentration are the main factors that influence sediment oxygen demand; followed by spatial heterogeneity and resuspension of sediments, whereas the density of macro-invertebrates could have an effect in summer (hot season). Sediment layer thickness had no effect. A model of sediment oxygen demand is developed for the two main factors (temperature and substrate) with an r2 of 0.98. [less ▲]

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See detailA homologous radioimmunoassay for quantification of insulin-like growth factor-binding protein-2 in blood from cattle.
Vleurick, Lieve; Renaville, Robert ULg; VandeHaar, M. et al

in Journal of Dairy Science (2000), 83(3), 452-8

Insulin-like growth factor-I and -II (IGF-I, IGF-II) circulate in biological fluids bound to six different IGF-binding proteins that regulate IGF bioactivity. The IGF-binding protein-2 is regulated by ... [more ▼]

Insulin-like growth factor-I and -II (IGF-I, IGF-II) circulate in biological fluids bound to six different IGF-binding proteins that regulate IGF bioactivity. The IGF-binding protein-2 is regulated by growth hormones, and its concentration depends on nutrition and physiological state. Specific antibodies directed against bovine IGF-binding protein-2 were produced, and IGF-binding protein-2 levels in bovine blood samples were quantified by radioimmunoassay. Parallel displacement curves showed strong cross-reactivity with bovine and ovine plasma, were low with porcine plasma, and no cross-reactivity with rat or chicken plasma. Addition of IGF-I or -II to a control pool of bovine plasma did not significantly alter control IGF-binding protein-2 values in a radioimmunoassay. Six nycthemeral periods, determined for three young bulls bled on two occasions, showed that IGF-binding protein-2 plasma levels were stable throughout the day; two or three samples were sufficient to characterize the animal. Cows treated with recombinant bovine somatotropin (bST) had significantly lower serum levels of IGF-binding protein-2 than did control cows. Furthermore, IGF-binding protein-2 levels were dramatically increased at the onset of lactation. This radioimmunoassay for bovine IGF-binding protein-2, which enables quantitative assessment of IGF-binding protein-2 concentration in cattle, confirmed that IGF-binding protein-2 concentrations are depressed by administration of bST, enhanced after calving, and showed absence of diurnal variation. [less ▲]

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See detailVery Low Surfactant Protein C Contents in Newborn Belgian White and Blue Calves with Respiratory Distress Syndrome
Danlois, F.; Zaltash, S.; Johansson, J. et al

in Biochemical Journal (2000), 351(Pt 3), 779-87

We have studied a respiratory distress syndrome (RDS) occurring in newborn calves of the Belgian White and Blue (BWB) breed that represents the large majority of beef cattle in Belgium. Pulmonary ... [more ▼]

We have studied a respiratory distress syndrome (RDS) occurring in newborn calves of the Belgian White and Blue (BWB) breed that represents the large majority of beef cattle in Belgium. Pulmonary surfactant isolated from 14 BWB newborn calves that died from RDS and from 7 healthy controls was analysed for composition and surface activity. An extremely low content or, in some instances, an absence of surfactant protein C (SP-C) was detected in the RDS samples by Western blotting and differential amino acid analysis [0.03+/-0.01% (w/w) relative to total phospholipids, compared with 0.39+/-0.06% for healthy controls (means+/-S.E.M., P < 0.001)]. The contents of surfactant protein B (SP-B) were similar in RDS and control samples. The crude surfactant samples isolated from RDS calves had higher ratios of total protein to total phospholipid, altered phospholipid profiles and lower SP-A contents. Both crude and organic extracts of RDS surfactant samples showed increased dynamic surface tension compared with healthy controls when evaluated with a pulsating-bubble surfactometer. The addition of purified SP-C to organic extracts of RDS surfactant samples lowered surface tension. Strongly decreased levels of mature SP-C associated with fatal RDS and altered surface activity in vitro have, to the best of our knowledge, not been previously reported. The mechanisms underlying RDS and the decrease in SP-C in BWB calves remain to be established. [less ▲]

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See detailEvaluation thérapeutique précoce par tomographie à émission de positons
Jerusalem, Guy ULg; Beguin, Yves ULg; Fassotte, Marie-France ULg et al

in Médecine et Hygiène (2000), 58

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See detailLe principe de precaution et l'obligation d'action medicale
Foidart, Jean-Michel ULg

in Bulletin de l'Académie Nationale de Médecine (2000), 184(5), 937-43943-4

Since Antiquity, medicine has been based upon the principle of prudence. In recent years, the principle of precaution has stolen over the medical conscience and has especially been forced on doctors under ... [more ▼]

Since Antiquity, medicine has been based upon the principle of prudence. In recent years, the principle of precaution has stolen over the medical conscience and has especially been forced on doctors under pressure from a Society searching for a new Holy Grail; the utopia of zero risk and the fear for magical power of an omnipotent medicine. The principle of precaution should be capable of warding off all these evils of techno-scientific progress applied to Health. Thus, in a few years, a new norm has established itself first for the environment but which has today extended to the domain of medical decisions. It is essential that the medical authorities attract the attention of politics and of the judiciary to the dangers of blindly transposing the principle of precaution in ecology to the world of medicine. The risks of deviation are numerous, the eventual perverse effects would be detrimental to patients and health security would be endangered by paralysis and conservatism. Medicine is neither the Art of Curing nor the Art of not Harming, ... it is the Art of Caring! ... [less ▲]

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See detailPurification and biochemical characterization of the VIM-1 metallo-beta-lactamase.
Franceschini, N.; Caravelli, B.; Docquier, J. D. et al

in Antimicrobial agents and chemotherapy (2000), 44(11), 3003-7

VIM-1 is a new group 3 metallo-beta-lactamase recently detected in carbapenem-resistant nosocomial isolates of Pseudomonas aeruginosa from the Mediterranean area. In this work, VIM-1 was purified from an ... [more ▼]

VIM-1 is a new group 3 metallo-beta-lactamase recently detected in carbapenem-resistant nosocomial isolates of Pseudomonas aeruginosa from the Mediterranean area. In this work, VIM-1 was purified from an Escherichia coli strain carrying the cloned bla(VIM-1) gene by means of an anion-exchange chromatography step followed by a gel permeation chromatography step. The purified enzyme exhibited a molecular mass of 26 kDa in sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and an acidic pI of 5.1 in analytical isoelectric focusing. Amino-terminal sequencing showed that mature VIM-1 results from the removal of a 26-amino-acid signal peptide from the precursor. VIM-1 hydrolyzes a broad array of beta-lactam compounds, including penicillins, narrow- to expanded-spectrum cephalosporins, carbapenems, and mechanism-based serine-beta-lactamase inactivators. Only monobactams escape hydrolysis. The highest catalytic constant/K(m) ratios (>10(6) M(-1). s(-1)) were observed with carbenicillin, azlocillin, some cephalosporins (cephaloridine, cephalothin, cefuroxime, cefepime, and cefpirome), imipenem, and biapenem. Kinetic parameters showed remarkable variability with different beta-lactams and also within the various penam, cephem, and carbapenem compounds, resulting in no clear preference of the enzyme for any of these beta-lactam subfamilies. Significant differences were observed with some substrates between the kinetic parameters of VIM-1 and those of other metallo-beta-lactamases. Inactivation assays carried out with various chelating agents (EDTA, 1,10-o-phenanthroline, and pyridine-2,6-dicarboxylic acid) indicated that formation of a ternary enzyme-metal-chelator complex precedes metal removal from the zinc center of the protein and revealed notable differences in the inactivation parameters of VIM-1 with different agents. [less ▲]

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See detailMicroscopic model of ferroelectricity in stress-free PbTiO3 ultrathin films
Ghosez, Philippe ULg; Rabe, K. M.

in Applied Physics Letters (2000), 76(19), 2767-2769

The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-circuit electrical boundary ... [more ▼]

The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-circuit electrical boundary conditions, (001) films with thickness as low as three unit cells are found to have a perpendicularly polarized ferroelectric ground state with significant enhancement of the polarization at the surface. (C) 2000 American Institute of Physics. [S0003- 6951(00)02119-7]. [less ▲]

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See detailField observations on the variability of crude oil impact on indigenous hydrocarbon-degrading bacteria from sub-Antarctic intertidal sediments
Delille, Daniel; Delille, Bruno ULg

in Marine Environmental Research (2000), 49(5), 403-417

Oil pollution of the oceans has been a problem ever since man began to use fossil fuels. Biodegradation by naturally occurring populations of micro-organisms is a major mechanism for the removal of ... [more ▼]

Oil pollution of the oceans has been a problem ever since man began to use fossil fuels. Biodegradation by naturally occurring populations of micro-organisms is a major mechanism for the removal of petroleum from the environment. To examine the effects of crude oil pollution on intertidal bacteria, we repeated the same contamination experiments on nine different sub-Antarctic intertidal beaches using specifically built enclosures (PVC pipe, 15 cm in inner diameter and 30 cm in height). Despite the pristine environmental conditions, significant numbers of indigenous hydrocarbon-degrading bacteria were observed in all the studied beaches. Introduction of oil into these previously oil-free environments resulted in several orders of magnitude of increase in hydrocarbon-degrading micro-organisms within a few days in some of the studied sites but has no obvious effects on two others. The physical environment of the bacterial assemblage seems to play a major role in the biodegradation capacities. After 3 months of contamination, both remaining oil concentrations and biodegradation indexes differ strongly between the different stations. Thus, chemical and biological parameters reveal a strong heterogeneity of biodegradation capacities between the different sites. (C) 2000 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailEnantioselective Syntheses and Absolute Configuration of the Ladybird Defence Alkaloids (+)-Calvine and (+)-2-Epicalvine
Laurent, Pascal ULg; Braekman, Jean-Claude; Daloze, Désiré

in European Journal of Organic Chemistry (2000), 11

Enantiomerically pure (+)-calvine (1a) and (+)-2-epicalvine (Ib), two piperidine alkaloids isolated from ladybird beetles of the genus Calvia (Coccinellidae), were synthesized by two different strategies ... [more ▼]

Enantiomerically pure (+)-calvine (1a) and (+)-2-epicalvine (Ib), two piperidine alkaloids isolated from ladybird beetles of the genus Calvia (Coccinellidae), were synthesized by two different strategies starting from (-)-2,3,6,7,8,8a-hexahydro-3-phenyl-5H-[1,3]oxazolo[3,2-a]pyridine-5-carbonitrile (2). The key steps of these syntheses are the stereocontrolled formation of an asymmetric centre a to the nitrogen atom of 2 and the subsequent introduction of the methoxycarbonylmethyl substituent at the u'-position. Comparison of the optical rotations of the synthetic benzoates (12a) and (12b) with those of the corresponding benzoates derived from the natural compounds has revealed the absolute configuration of (+)-calvine to be (2S,6S) and that of (+)-2-epicalvine to be (2R,6S). [less ▲]

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See detailRole Of Surface Chemical Signals In Egg Cannibalism And Intraguild Predation In Ladybirds (Coleoptera : Coccinellidae)
Hemptinne, Jl.; Lognay, Georges ULg; Gauthier, Carole ULg et al

in Chemoecology (2000), 10(3), 123-128

The eggs of some ladybirds are known to be toxic to intraguild ladybird predators. However, this defence is of little value if the eggs are killed before their toxicity becomes apparent. The results ... [more ▼]

The eggs of some ladybirds are known to be toxic to intraguild ladybird predators. However, this defence is of little value if the eggs are killed before their toxicity becomes apparent. The results presented in this paper indicate that chemicals on the surface of the eggs of two species of ladybirds signal the relative risk of cannibalism and intraguild predation. In Adalia bipunctata and Coccinella septempunctata, 87% of the chemicals are alkanes. Each species of ladybird is less reluctant to eat their own eggs than those of the other species. This asymmetry is to be expected because there is a greater risk to ladybirds from intraguild predation than cannibalism. Similar alkanes to those on the surface of the eggs of A. bipunctata are present in tracks left by larvae and on the elytra of the adults of this species. Those in the larval tracks deter females from ovipositing in patches of prey already being attacked by their larvae and those on the elytra are used in mate recognition. That different context dependent messages could be signalled by similar chemicals is an example of semiochemical parsimony. [less ▲]

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See detailOppositions locales et dynamiques d'environnementalisation
Mormont, Marc ULg; Bertrand, Anne

in Espaces et Sociétés (Paris, France) (2000), (101-102), 93-112

Local conflicts provoke collective action that through new coalitions induce reformulations of the problems and elarge scope and scaling of environmental problems. These processes are called ecologization ... [more ▼]

Local conflicts provoke collective action that through new coalitions induce reformulations of the problems and elarge scope and scaling of environmental problems. These processes are called ecologization dynamics and are going to transform environmental politics. [less ▲]

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See detailHuitième campagne de fouilles à Tell Beydar
Van der Stede, Véronique ULg; Talon, Philippe

in Annales d'Histoire de l'Art et d'Archéologie (2000), XXII

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See detailClinical impact and perspectives of 18F-FDG PET in lymphoma
Jerusalem, Guy ULg; Beguin, Yves ULg

in Clinical Lymphoma (2000), 1

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See detailPhysostigmine reverses propofol-induced unconsciousness and attenuation of the auditory steady state response and bispectral index in human volunteers.
Meuret, Pascal; Backman, Steven; Bonhomme, Vincent ULg et al

in Anesthesiology (2000), 93(3), 708-17

BACKGROUND: It is postulated that alteration of central cholinergic transmission plays an important role in the mechanism by which anesthetics produce unconsciousness. The authors investigated the effect ... [more ▼]

BACKGROUND: It is postulated that alteration of central cholinergic transmission plays an important role in the mechanism by which anesthetics produce unconsciousness. The authors investigated the effect of altering central cholinergic transmission, by physostigmine and scopolamine, on unconsciousness produced by propofol. METHODS: Propofol was administered to American Society of Anesthesiologists physical status 1 (n = 17) volunteers with use of a computer-controlled infusion pump at increasing concentrations until unconsciousness resulted (inability to respond to verbal commands, abolition of spontaneous movement). Central nervous system function was assessed by use of the Auditory Steady State Response (ASSR) and Bispectral Index (BIS) analysis of electrooculogram. During continuous administration of propofol, reversal of unconsciousness produced by physostigmine (28 microgram/kg) and block of this reversal by scopolamine (8.6 microgram/kg) were evaluated. RESULTS: Propofol produced unconsciousness at a plasma concentration of 3.2 +/- 0.8 (+/- SD) microgram/ml (n = 17). Unconsciousness was associated with reductions in ASSR (0.10 +/- 0.08 microV [awake baseline 0.32 +/- 0.18 microV], P < 0.001) and BIS (55.7 +/- 8.8 [awake baseline 92.4 +/- 3.9], P < 0.001). Physostigmine restored consciousness in 9 of 11 subjects, with concomitant increases in ASSR (0.38 +/- 0.17 microV, P < 0.01) and BIS (75.3 +/- 8.3, P < 0.001). In all subjects (n = 6) scopolamine blocked the physostigmine-induced reversal of unconsciousness and the increase of the ASSR and BIS (ASSR and BIS during propofol-induced unconsciousness: 0.09 +/- 0.09 microV and 58.2 +/- 7.5, respectively; ASSR and BIS after physostigmine administration: 0.08 +/- 0.06 microV and 56.8 +/- 6.7, respectively, NS). CONCLUSIONS: These findings suggest that the unconsciousness produced by propofol is mediated at least in part via interruption of central cholinergic muscarinic transmission. [less ▲]

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See detailEosinophilic Bronchopneumopathy in Dogs
Clercx, Cécile ULg; Peeters, Dominique ULg; Snaps, Frédéric ULg et al

in Journal of Veterinary Internal Medicine (2000), 14(3, May-Jun), 282-91

Eosinophilic bronchopneumopathy was diagnosed in 23 young dogs. Clinical signs included cough, gagging, and retching in all dogs, dyspnea in 21 dogs (91%), and nasal discharge in 12 dogs (52%). The most ... [more ▼]

Eosinophilic bronchopneumopathy was diagnosed in 23 young dogs. Clinical signs included cough, gagging, and retching in all dogs, dyspnea in 21 dogs (91%), and nasal discharge in 12 dogs (52%). The most common radiographic findings were a moderate to severe bronchointerstitial pattern (68%, 13 of 19 dogs). Bronchoscopic findings included the presence of abundant yellow-green mucus or mucopurulent material (70%, 16 of 23 dogs) and severe mucosal thickening with an irregular or polypoid appearance (52%, 12 of 23 dogs), with partial airway closure during expiration in 3 dogs (13%). Peripheral blood eosinophilia was noted in 14 of 23 dogs (61%). Inflammatory cells in brush or bronchoalveolar lavage fluid cytologic preparations comprised more than 50% eosinophils in 14 of 23 dogs (61%), and 20-50% eosinophils in 6 dogs (26%). Eosinophilic infiltration of the bronchial mucosa was observed in biopsies from 19 dogs and was graded as mild (37%, 7 dogs), moderate (32%, 6 dogs), or severe (32%, 6 dogs). The mean serum immunoglobulin A concentration was almost double that of a population of 20 healthy dogs of various breeds. Oral glucocorticoids were administered on alternate days with progressive tapering of the dose; the dosage at maintenance varied between 0.1 and 1.0 mg/kg every other day. No relationship was found between the duration of clinical signs and the maintenance dosage or the cytologic and histopathologic grades. [less ▲]

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See detailA clinical comparison of sumatriptan nasal spray and dihydroergotamine nasal spray in the acute treatment of migraine.
Boureau, F.; Kappos, L.; Schoenen, Jean ULg et al

in International Journal of Clinical Practice (2000), 54(5), 281-6

A multinational, multicentre, randomised, double-blind, double-dummy, crossover study (368 patients treating two attacks) was conducted to compare the efficacy and tolerability of sumatriptan nasal spray ... [more ▼]

A multinational, multicentre, randomised, double-blind, double-dummy, crossover study (368 patients treating two attacks) was conducted to compare the efficacy and tolerability of sumatriptan nasal spray (20 mg) with dihydroergotamine (DHE) nasal spray (1 mg plus optional 1 mg). At the primary efficacy time point of 60 minutes after dosing, significantly more patients obtained headache relief (change from moderate or severe to none or mild) after treatment with sumatriptan than with DHE (53% sumatriptan, 41% DHE, p < 0.001). Significantly more patients reported relief of nausea after sumatriptan than after DHE at 60 minutes (64% sumatriptan, 49% DHE, p = 0.006). A significant difference between the two treatments was first observed at 45 minutes with respect to both headache relief (38% sumatriptan, 31% DHE, p = 0.037) and relief of nausea (55% sumatriptan, 40% DHE, p = 0.014). There were no significant differences between the two treatments for other measures of efficacy. Both treatments were well tolerated, with only 10% of patients in each group reporting one or more adverse events. The most frequently reported adverse event after sumatriptan was a bad or bitter taste, which was reported by 5% of patients. After DHE, 4% of patients reported symptoms of the nasal cavity/sinuses and 3% reported nausea and/or vomiting as adverse events. It is concluded that sumatriptan nasal spray is superior to DHE nasal spray in the relief of pain and nausea associated with acute migraine headache. [less ▲]

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See detailDerived Categories for Functional Analysis
Prosmans, Fabienne ULg

in Publications of the Research Institute for Mathematical Sciences (2000), 36(1), 19-83

We study the homological algebra of the category of locally convex topological vector spaces from the point of view of derived categories.

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See detailSynthesis of new hydrophilic γ-substituted poly(ε-caprolactone)s
Lecomte, Philippe ULg; D'aloia, Violetta; Mazza, Michaël et al

in Polymer Preprints (2000), 41(2), 1534-1535

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See detailLégislation et exercice de l'entomologie en Région wallonne
Fagot, Jean ULg; Dethier, Michel ULg

in Notes Fauniques de Gembloux (2000), 41

In Wallonia, a new law is in study to set up a better level of protection for the fauna and the flora, and that, in respect of the european spirit of Nature preservation. On the other hand, a lot of ... [more ▼]

In Wallonia, a new law is in study to set up a better level of protection for the fauna and the flora, and that, in respect of the european spirit of Nature preservation. On the other hand, a lot of territories are raised to different level of protection. The authors enumerate the consequences of the new act and European directives on the practice of the entomology in Wallonia. [less ▲]

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See detailAn Original integration scheme. Application to a simple shear test of anisotropic material
de Montleau, P.; Habraken, Anne ULg

in International Journal for Numerical Methods in Engineering (2000)

Finite element simulations involving large deformations and large displacements imply the setting up of a precise kinematic for the integration scheme. Moreover, anisotropic mechanical behaviors have to ... [more ▼]

Finite element simulations involving large deformations and large displacements imply the setting up of a precise kinematic for the integration scheme. Moreover, anisotropic mechanical behaviors have to be expressed in an appropriate local reference frame. In the present paper, a computational procedure is derived from a particular velocity gradient de¯nition. The implementation in the ¯nite element code Lagamine developed in the M&S department is described. An application to a simple shear test is proposed. A sinusoidal behavior of the shear component stress is emphasized. It is due to the anisotropic yield locus and appears in the case of a saturated isotropic hardening law. [less ▲]

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See detailLa néosporose chez la chèvre : résultats de deux enquêtes sérologiques dans l'Ouest de la France
Chartier, C.; Baudry, C.; Losson, Bertrand ULg et al

in Point Vétérinaire (2000), 31

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See detailIncreased synovial fluid levels of soluble CD23 are associated with an erosive status in rheumatoid arthritis (RA).
Ribbens, Clio ULg; Bonnet, V.; Kaiser, Marie-Joëlle ULg et al

in Clinical & Experimental Immunology (2000), 120(1), 194-199

Synovial fluid (SF) levels of soluble CD23 (sCD23) were determined in 96 patients presenting with an inflammatory knee effusion (73 with RA and 23 with reactive arthritis (ReA) serving as a control ... [more ▼]

Synovial fluid (SF) levels of soluble CD23 (sCD23) were determined in 96 patients presenting with an inflammatory knee effusion (73 with RA and 23 with reactive arthritis (ReA) serving as a control inflammatory non-erosive group) and were correlated with the degree of joint destruction, with local immune parameters (IL-1beta, IL-3, IL-4, IL-6, IL-8, IL-10, IL-12 and sCD25) and with serum markers of inflammation, C-reactive protein and erythrocyte sedimentation rate. RA patients, classified as erosive or not according to Larsen's grade, were separated as follows: (i) 13 patients with non-erosive RA; (ii) 16 RA patients with erosions in hands but not in knees, matched for disease duration with the first group; (iii) 44 RA patients with hand and knee erosions, matched with the second group for rheumatoid factor positivity but of longer disease duration. SF sCD23 levels were significantly increased in both erosive RA groups compared with non-erosive diseases, whether RA or ReA (P < 0.05), whose SF levels were not different. SF IL-10 showed a similar profile to that of SF sCD23 and was the only other parameter characteristic of erosive RA, but no direct correlation was found between the two. SF sCD23 was significantly correlated with IL-12 (r = 0.65, P = 0.0001) and sCD25 (r = 0.39, P = 0.0019) exclusively in the two erosive RA populations. In conclusion, these data showing that increased levels of sCD23 are not only found in the SF of erosive joints but also in knee SF of patients with erosive RA but without knee x-ray-diagnosed erosions suggest that this parameter might be of predictive value for joint destruction. Longitudinal studies are however needed to confirm its potential clinical interest. [less ▲]

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See detailCrystal structure of a D-aminopeptidase from Ochrobactrum anthropi, a new member of the 'penicillin-recognizing enzyme' family.
Bompard-Gilles, C.; Remaut, H.; Villeret, V. et al

in Structure (2000), 8(9), 971-80

BACKGROUND: beta-Lactam compounds are the most widely used antibiotics. They inactivate bacterial DD-transpeptidases, also called penicillin-binding proteins (PBPs), involved in cell-wall biosynthesis ... [more ▼]

BACKGROUND: beta-Lactam compounds are the most widely used antibiotics. They inactivate bacterial DD-transpeptidases, also called penicillin-binding proteins (PBPs), involved in cell-wall biosynthesis. The most common bacterial resistance mechanism against beta-lactam compounds is the synthesis of beta-lactamases that hydrolyse beta-lactam rings. These enzymes are believed to have evolved from cell-wall DD-peptidases. Understanding the biochemical and mechanistic features of the beta-lactam targets is crucial because of the increasing number of resistant bacteria. DAP is a D-aminopeptidase produced by Ochrobactrum anthropi. It is inhibited by various beta-lactam compounds and shares approximately 25% sequence identity with the R61 DD-carboxypeptidase and the class C beta-lactamases. RESULTS: The crystal structure of DAP has been determined to 1.9 A resolution using the multiple isomorphous replacement (MIR) method. The enzyme folds into three domains, A, B and C. Domain A, which contains conserved catalytic residues, has the classical fold of serine beta-lactamases, whereas domains B and C are both antiparallel eight-stranded beta barrels. A loop of domain C protrudes into the substrate-binding site of the enzyme. CONCLUSIONS: Comparison of the biochemical properties and the structure of DAP with PBPs and serine beta-lactamases shows that although the catalytic site of the enzyme is very similar to that of beta-lactamases, its substrate and inhibitor specificity rests on residues of domain C. DAP is a new member of the family of penicillin-recognizing proteins (PRPs) and, at the present time, its enzymatic specificity is clearly unique. [less ▲]

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See detailTropisetron in the prevention of postoperative nausea and vomiting.
Boogaerts, J G; Bardiau, Françoise ULg; Seidel, Laurence ULg et al

in Journal of Clinical Anesthesia (2000), 12(5), 402-8

STUDY OBJECTIVES: To evaluate the efficacy of tropisetron, a selective 5-HT(3) receptor antagonist, in preventing nausea and vomiting in high-risk inpatients undergoing various surgical procedures. DESIGN ... [more ▼]

STUDY OBJECTIVES: To evaluate the efficacy of tropisetron, a selective 5-HT(3) receptor antagonist, in preventing nausea and vomiting in high-risk inpatients undergoing various surgical procedures. DESIGN: Prospective, open, nonrandomized, observational, interventional study. SETTING: Postanesthesia care unit, and surgical wards of the University Hospital Center, Charleroi. PATIENTS: A total of 1,132 elective surgical inpatients (>15 years of age) in two separate surveys. The first prospective survey covered all surgical adult inpatients (n = 671) after various surgical procedures over a 3-month period. A new 3-month survey was performed to assess the effectiveness of the preventive measure and included another 461 patients. INTERVENTIONS: Risk factors associated with nausea and vomiting were recorded in the first survey and used to establish an antiemetic policy. This consisted in the administration of tropisetron 2 mg intravenously after anesthesia induction, if two patient-related risk factors associated with high-risk surgery and general anesthesia were present. MEASUREMENTS AND MAIN RESULTS: Nausea frequency and intensity, assessed every 4 hours using a visual analog scale (VAS), frequency and times of vomiting episodes and the need for rescue medication were recorded for 72 hours postoperatively. Nausea was experienced by 18.8% and vomiting by 9.8% of the patients in the first survey (211 high risk-patients of 671). In the second survey, 137 patients of 461, considered at high-risk received prophylactic tropisetron. The proportion of patients having nausea decreased to 11.1% (p,178 0.01) and vomiting episodes to 2.8% (p < 0.001). Twenty-six of the tropisetron-treated patients (19%) suffered subsequent postoperative nausea and vomiting (PONV). Patient satisfaction with tropisetron was high. CONCLUSION: Prophylactic tropisetron can reduce the incidence of PONV in selected high-risk inpatients undergoing various types of surgical procedures. [less ▲]

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See detailA Fast Method To Predict Protein Interaction Sites From Sequences
Gallet, X.; Charloteaux, Benoît ULg; Thomas, Annick ULg et al

in Journal of Molecular Biology (2000), 302(4), 917-26

A simple method for predicting residues involved in protein interaction sites is proposed. In the absence of any structural report, the procedure identifies linear stretches of sequences as "receptor ... [more ▼]

A simple method for predicting residues involved in protein interaction sites is proposed. In the absence of any structural report, the procedure identifies linear stretches of sequences as "receptor-binding domains" (RBDs) by analysing hydrophobicity distribution. The sequences of two databases of non-homologous interaction sites eliciting various biological activities were tested; 59-80 % were detected as RBDs. A statistical analysis of amino acid frequencies was carried out in known interaction sites and in predicted RBDs. RBDs were predicted from the 80,000 sequences of the Swissprot database. In both cases, arginine is the most frequently occurring residue. The RBD procedure can also detect residues involved in specific interaction sites such as the DNA-binding (95 % detected) and Ca-binding domains (83 % detected). We report two recent analyses; from the prediction of RBDs in sequences to the experimental demonstration of the functional activities. The examples concern a retroviral Gag protein and a penicillin-binding protein. We support that this method is a quick way to predict protein interaction sites from sequences and is helpful for guiding experiments such as site-specific mutageneses, two-hybrid systems or the synthesis of inhibitors. [less ▲]

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See detailWilson Harris Issue
Maes-Jelinek, Hena ULg

in Journal of Caribbean Literatures (2000), 2(1-2-3), 289

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See detailAlteration of thyroid hormones, insulin-like growth factor-I (IGF-I) and IGFBPs in finishing calves treated with dexamethasone
Bertozzi, Carlo; Massart, Serge; Darras, Veerle et al

in Canadian Journal of Animal Science (2000), 80

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See detailDevelopment Of An In Vitro Pod Culture Technique For Young Pods Of Phaseolus Vulgaris L.
Geerts, P.; Sassi, K.; Mergeai, Guy ULg et al

in In Vitro Cellular & Developmental Biology-Plant (2000), 36(6),

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See detailAutomatisation d'un banc de répartition pour buses de pulvérisation
Lebeau, Frédéric ULg; Hamza, Elies; Destain, Marie-France ULg

in Cahiers Agricultures (2000)

Les bancs de répartition constituent l'élement de base permettant de tester la sensibilité de la distribution transversale des buses de pulvérisation aux différents paramètres de fonctionnement. L'article ... [more ▼]

Les bancs de répartition constituent l'élement de base permettant de tester la sensibilité de la distribution transversale des buses de pulvérisation aux différents paramètres de fonctionnement. L'article présente un banc d'essai conforme à la norme ISO 5682/1 qui permet une lecture automatisée des différentes grandeurs (pression, débit, volume recueilli). [less ▲]

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See detailElectrophysiological behavior of Purkinje cells and motor coordination in calretinin knock-out mice
Cheron, Guy; Schurmans, Stéphane ULg; Lohof, Ann et al

in Progress in Brain Research (2000), 124

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See detailDual Formulations for the Modeling of Thin Electromagnetic Shells using Edge Elements
Geuzaine, Christophe ULg; Dular, Patrick ULg; Legros, Willy ULg

in IEEE Transactions on Magnetics (2000), 36(4), 799-803

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See detailObservations sous Cass., 11 février 2000
Boularbah, Hakim ULg

in Revue de Droit Judiciaire et de la Preuve = Tijdschrift voor Procesrecht en Bewijsrecht (2000)

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See detailConstructions and applications of wavelets in Sobolev spaces
Bastin, Françoise ULg

in Revista Ciencias Matematicas (2000), 18(2), 145-177

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See detailMass Transfer Across an Interface Induces Formation of Droplets in Lattice Systems
Pfennig, Andreas ULg

in Chemical Engineering Science (2000), 55(22), 5333-5339

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See detailComment j'explore ... les anomalies du metabolisme glucidique, de l'insulinosecretion et de la sensibilite a l'insuline avec une hyperglycemie provoquee par voie orale.
Luyckx, Françoise ULg; Scheen, André ULg

in Revue Médicale de Liège (2000), 55(9), 881-5

Oral glucose tolerance test (OGTT) has been widely used for the diagnosis of diabetes mellitus, gestational diabetes, impaired glucose tolerance or reactive hypoglycaemia. Simultaneous measurements of ... [more ▼]

Oral glucose tolerance test (OGTT) has been widely used for the diagnosis of diabetes mellitus, gestational diabetes, impaired glucose tolerance or reactive hypoglycaemia. Simultaneous measurements of plasma glucose and insulin levels also allow to derive indices of insulin secretion and insulin sensitivity. Whereas OGTT is not considered anymore as the first choice for the diagnosis of diabetes mellitus, it remains useful for studying abnormalities of glucose metabolism as well as of insulin secretion and insulin action. [less ▲]

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See detailA survey on staging and treatment in uterine cervical carcinoma in the Radiotherapy Cooperative Group of the European Organization for Research and Treatment of Cancer
Coucke, Philippe ULg; Maingon, P; Ciernik, I et al

in Radiotherapy & Oncology (2000), 54

Abstract Background: The treatment outcome of advanced stage uterine cervical carcinoma remains unsatisfactory. In order to elaborate a novel trial within The Radiotherapy Cooperative Group (RCG) of the ... [more ▼]

Abstract Background: The treatment outcome of advanced stage uterine cervical carcinoma remains unsatisfactory. In order to elaborate a novel trial within The Radiotherapy Cooperative Group (RCG) of the European Organization for Research and Treatment of Cancer (EORTC), we conducted a survey in 1997±1998 to determine the variability of pre-treatment assessment and treatment options. The variability of choosing surgery, de®ned radiation therapy techniques and chemotherapy are investigated, as well as the center's choices of future treatment strategies. Methods: Fifty two of 81 RCG centers from the RCG have participated in the survey. As one would expect, there is a large variation in the techniques used for pretreatment evaluation and treatment options. There is no `standard' for reporting acute and late side effects. Chemotherapy is used neither systematically nor uniformly, and some centers continue to use neadjuvant chemotherapy modalities. Results: Furthermore, the survey reveals that there is a strong demand for the reduction of overall treatment-time, for clinical investigation of novel combined modality treatment strategies, especially chemo±radiation therapy, and also for the use of new radiation sensitizers. Conclusion:We conclude that a more homogeneous approach to the pretreatment evaluation as well as treatment techniques is required in order to allow adequate quality control in any future trial of the RCG in the EORTC.q2000 Elsevier Science Ireland Ltd. All rights reserved. [less ▲]

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See detailAdenovirus infections in pigeons
Duchatel, Jean-Pierre ULg; Marlier, Didier ULg; Jauniaux, Thierry ULg et al

in Annales de Médecine Vétérinaire (2000), 144(1), 13-17

This paper describes the different clinical aspects of the adenovirus infections in pigeons. Etiology, epidemiology, pathogenesis, diagnosis and treatment are discussed. The two specific clinical ... [more ▼]

This paper describes the different clinical aspects of the adenovirus infections in pigeons. Etiology, epidemiology, pathogenesis, diagnosis and treatment are discussed. The two specific clinical syndromes of pigeons are mainly described: classical adenovirus and necrotizing-hepatitis. [less ▲]

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See detailOsteoporose bij de bejaarde
Reginster, Jean-Yves ULg; Taquet, AN; Fraikin, G

in Medi-Sfeer (2000), 103

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See detailPalladium-silver sol-gel catalysts for selective hydrodechlorination of 1,2-dichloroethane into ethylene II. Surface composition of alloy particles
Heinrichs, Benoît ULg; Noville, Francis ULg; Schoebrechts, Jean-Paul et al

in Journal of Catalysis (2000), 192(1), 108-118

The surface composition of alloy particles in Pd-Ag/SiO2 hydrodechlorination (HDC) sol-gel catalysts has been determined by combining three experimental techniques, carbon monoxide chemisorption, X-ray ... [more ▼]

The surface composition of alloy particles in Pd-Ag/SiO2 hydrodechlorination (HDC) sol-gel catalysts has been determined by combining three experimental techniques, carbon monoxide chemisorption, X-ray diffraction, and transmission electron microscopy, Values obtained through this method show a very marked silver enrichment of the surface, as expected: as a consequence of the important gap between palladium and silver surface energies. These values are in complete agreement with surface composition curves calculated in other studies by means of Auger electron spectroscopy and infrared spectroscopy. The influence of sample pretreatment temperature as well as the influence of carbon monoxide on surface composition are discussed. (C) 2000 Academic Press. [less ▲]

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See detailMorphodynamisme d'un tronçon de la Loire bourbonnaise depuis le XVIIIe siècle
Leteinturier, B.; Engels, Patrick ULg; Petit, François ULg et al

in Géomorphologie : Relief, Processus, Environnement (2000)

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See detailAuditory processing in the vegetative state.
Laureys, Steven ULg; Faymonville, Marie ULg; Degueldre, Christian ULg et al

in Brain : A Journal of Neurology (2000), 123 ( Pt 8)

H(2)(15)O-PET was used to investigate changes in regional cerebral blood flow in response to auditory stimulation in patients in the vegetative state. Five patients in a vegetative state of hypoxic origin ... [more ▼]

H(2)(15)O-PET was used to investigate changes in regional cerebral blood flow in response to auditory stimulation in patients in the vegetative state. Five patients in a vegetative state of hypoxic origin were compared with 18 age-matched controls. In addition, the cerebral metabolism of these patients and 53 age-matched controls was studied using [(18)F]fluorodeoxyglucose. In control subjects, auditory click stimuli activated bilateral auditory cortices [Brodmann areas (BA) 41 and 42] and the contralateral auditory association cortices (BA 22). In the patients, although resting metabolism was decreased to 61% of normal values, bilateral auditory areas 41 and 42 showed activation as seen in the controls, but the temporoparietal junction cortex (BA 22) failed to be activated. Moreover, the auditory association cortex was functionally disconnected from the posterior parietal association area (BA 40), the anterior cingulate cortex (BA 24) and the hippocampus, as revealed by psychophysiological interaction analysis. Thus, despite altered resting metabolism, the auditory primary cortices were still activated during external stimulation, whereas hierarchically higher-order multi- modal association areas were not. Such a cascade of functional disconnections along the auditory cortical pathways, from the primary auditory areas to multimodal and limbic areas, suggests that the residual cortical processing observed in the vegetative state cannot lead to the integrative processes that are thought to be necessary for the attainment of the normal level of awareness. [less ▲]

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See detailDifferences in associations of familial and nutritional factors with serum lipids between boys and girls: the Luxembourg Child Study.
Guillaume, Michèle ULg; Lapidus, L.; Lambert, A.

in American Journal of Clinical Nutrition (2000), 72(2), 384-8

BACKGROUND: Sex differences in the effects of genetic and environmental factors on circulating lipids have been examined mainly in adults, in whom the influences of sex steroid hormones are well known ... [more ▼]

BACKGROUND: Sex differences in the effects of genetic and environmental factors on circulating lipids have been examined mainly in adults, in whom the influences of sex steroid hormones are well known. OBJECTIVE: Our objective was to determine the effect of sex on genetic and environmental influences on serum lipids in prepubertal boys and girls. DESIGN: Children aged 6-8, 8-10, and 10-12 y (n = 1028) were selected at random in the Belgian province of Luxembourg, a region in Europe with a high prevalence of risk factors for cardiovascular disease and diabetes. Blood glucose and serum cholesterol, triacylglycerol, and insulin concentrations were measured, and anthropometric data and blood pressure were recorded. Familial data were obtained from standardized questionnaires. Nutritional status was obtained from a 3-d record. Participation was 70.3% of the primary cohort. RESULTS: Cholesterol, triacylglycerol, and insulin values were among the highest recorded in studies of children. In girls, cholesterol correlated positively with the energy density of intake of saturated fat (r = 0.13, P = 0.001), cholesterol (r = 0.11, P = 0.006), and protein (r = 0.12, P = 0.007) and negatively with the ratio of polyunsaturated to saturated fat intake (r = -0.14, P = 0.001) and the energy density of carbohydrate intake (r = -0.11, P = 0.019). In boys, no such relations were found. Triacylglycerol was not significantly related to nutritional factors. Consistent, independent relations were found between reported elevated cholesterol concentrations in the parental and grandparental generation and cholesterol (r = 0.101, P = 0.011) and triacylglycerol (r = 0.09, P = 0.03) in boys. No such associations were found in girls. CONCLUSION: Environmental and genetic factors may have different effects on serum cholesterol in girls and boys. [less ▲]

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See detailPharma-clinics. Le medicament du mois. La moxonidine (Moxon).
Scheen, André ULg

in Revue Médicale de Liège (2000), 55(1), 61-3

Moxonidine (Moxon, Solvay Pharma) is the first member of a new class of centrally-acting antihypertensive agents. The selective activation of central I1 imidazoline receptors results in an inhibition of ... [more ▼]

Moxonidine (Moxon, Solvay Pharma) is the first member of a new class of centrally-acting antihypertensive agents. The selective activation of central I1 imidazoline receptors results in an inhibition of peripheral sympathetic activity and produces arterial vasodilatation. Moxonidine is indicated in the treatment of essential arterial hypertension, at a usual daily dose of 0.4 mg (initial dose of 0.2 mg/day), in one administration per day. Its tolerance profile is better than that of other centrally-acting antihypertensive agents which stimulate alpha-2 adrenergic receptors, and similar to that of medications of other classes. As monotherapy, the antihypertensive efficacy of moxonidine is similar to that of most other antihypertensive agents. In case of insufficient response, moxonidine may be associated with other antihypertensive compounds, which leads to a better efficacy with no deterioration of its good tolerance profile. [less ▲]

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See detailChanging dynamics of the Loire river in Burgundy (France) during the last 200 years
Leteinturier, B.; Engels, Patrick ULg; Petit, François ULg et al

in Géomorphologie : Relief, Processus, Environnement (2000)

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See detailVitamines anti-oxydantes dans la prevention des maladies cardio-vasculaires. 1ere partie: Le point sur les etudes epidemiologiques.
Scheen, André ULg

in Revue Médicale de Liège (2000), 55(1), 11-8

The hypothesis of the atherogenic role of oxidized. LDL lipoproteins and the observation of the longevity of individuals on a "mediterranean diet" led to the concept that antioxidant vitamins may exert ... [more ▼]

The hypothesis of the atherogenic role of oxidized. LDL lipoproteins and the observation of the longevity of individuals on a "mediterranean diet" led to the concept that antioxidant vitamins may exert cardiovascular protective effects. In this first article, we summarize the results of the main epidemiological studies which analyzed the influence of dietary intakes (or resulting plasma concentrations) in vitamin E (alpha-tocopherol), vitamin A (beta-carotene) or vitamin C (ascorbic acid). The three types of studies available in the literature provided quite heterogeneous results, in favour of a protective role of antioxidant vitamins as far as cross-cultural and most prospective observational studies were concerned, but rather negative when considering case-control studies. However, in general, epidemiological studies tended to support, a beneficial role of these antioxidant vitamins to prevent cardiovascular diseases, at least in some subgroups of individuals. [less ▲]

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See detailCore-polarization effects in the Cadmium Isoelectronic Sequence
Biémont, Emile ULg; Froese Fischer, C.; Godefroid, M. R. et al

in Physical Review. A (2000), 62

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See detailExample of application of the new strategy proposed for the validation of chromatographic bioanalytical methods
Chapuzet, E.; Mercier, N.; Bervoas-Martin, S. et al

in STP Pharma Pratiques (2000), 10(2), 79-101

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See detailLa contamination de l'eau et des aliments par les virus pathogènes pour l'homme
Scipioni, Alexandra ULg; Daube, Georges ULg; Thiry, Etienne ULg

in Annales de Médecine Vétérinaire (2000), 144

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See detailEvidence-based medicine. Apport des essais cliniques controles.
Scheen, André ULg

in Revue Médicale de Liège (2000), 55(4), 216-9

Controlled clinical trials are the support of Evidence-Based Medicine. In most instances, only them can indeed provide the demonstration of both the efficacy and safety of a pharmacological treatment ... [more ▼]

Controlled clinical trials are the support of Evidence-Based Medicine. In most instances, only them can indeed provide the demonstration of both the efficacy and safety of a pharmacological treatment, based upon rigorous scientific experimental observations avoiding potential bias due to subjective interpretation. In order to be able to extrapolate conclusions of drug trials to clinical practice and to positively influence physician's attitudes, "explanatory" trials, which aim at proving the intrinsic activity of the molecule, should be completed by "pragmatic" trials, which aim at demonstrating the clinical utility of the drug. [less ▲]

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See detailNerve biopsy: indications and contribution to the diagnosis of peripheral neuropathy. The experience of the Born Bunge Foundation University of Antwerp and University of Liege between 1987 and 1997.
Deprez, Manuel ULg; Ceuterick-de Groote, C.; Schoenen, Jean ULg et al

in Acta Neurologica Belgica (2000), 100(3), 162-6

We reviewed 355 nerve biopsies analysed at the Laboratories of Neuropathology of the Born-Bunge Foundation/University of Antwerp (BBF/UIA) and University of Liege (ULg) between 1987 and 1997. We examined ... [more ▼]

We reviewed 355 nerve biopsies analysed at the Laboratories of Neuropathology of the Born-Bunge Foundation/University of Antwerp (BBF/UIA) and University of Liege (ULg) between 1987 and 1997. We examined the indications for nerve biopsy, the yield of the procedure, and the influence of clinical and neuropathological parameters. Contributory biopsies accounted for 35.5% and 47.3% respectively at ULg and BBF/UIA laboratories: of these, one third showed specific histological findings, the majority being informative only when combined with the relevant clinical data. The profile of indications for nerve biopsy was roughly comparable in both laboratories. The search for an inflammatory neuropathy prompted 35-40% of all biopsies with more than 50% of specimens being informative in this indication. The lowest yield (20%) was obtained among the nerve biopsies performed in the absence of any presumptive aetiology. These accounted for 22-33% of all cases. Inadequate surgical resection, delays in transport or processing errors precluded histological study of 4% (BBF/UIA) to 8% (ULg) of the specimens. We conclude that nerve biopsies should be performed by experienced surgeons and handled in specialised laboratories. Only a relatively small number of causes of neuropathy can be diagnosed on the basis of histology alone. More often, contributory biopsies will result from the combination of non-specific suggestive histological features with relevant clinical information. The diagnostic yield of nerve biopsy is function of careful patient selection and close collaboration between the clinician and the neuropathologist. [less ▲]

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See detailD'un procès à l'autre - pour une esthétique des médias
Servais, Christine ULg

in Recherches en Communication (2000), 13

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See detailAffections musculaires et intolrance à l'effort. 1- Pathogénie et approche diagnostique
Art, Tatiana ULg; Amory, Hélène ULg; Lekeux, Pierre ULg

in Pratique Vétérinaire Equine (2000), 32

The muscular condition, rhabdomyolysis, may cause exercise intolerance in the sporting horse. When the condition is recurring, it is often difficult for the equine practitioner to establish the clinical ... [more ▼]

The muscular condition, rhabdomyolysis, may cause exercise intolerance in the sporting horse. When the condition is recurring, it is often difficult for the equine practitioner to establish the clinical diagnosis (is the horse suffering from rhabdomyolysis or not ?) and the aetiology (what is/are the cause(s) of the condition ?) and also to provide an effective treatment [less ▲]

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See detailCaractéristiques spermatiques des taureaux de race Borgou au Bénin
Adamou N'Diaye, M.; Gbangboche, A.B.; Adjovi, A. et al

in Annales des Sciences Agronomiques du Bénin (2000), 2

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See detailArticle d'introduction. Colloque du Sart Tilman du 29 avril 2000. Initiatives en matière de management du sport.
Cloes, Marc ULg

in Revue Sport (2000), 172

Le management du sport fait désormais l'objet d'une attention croissante tant de la part des responsables sportifs que de nombreux scientifiques impliqués dans le domaine des activités physiques et ... [more ▼]

Le management du sport fait désormais l'objet d'une attention croissante tant de la part des responsables sportifs que de nombreux scientifiques impliqués dans le domaine des activités physiques et sportives. L'évolution de la société occidentale (individualisme, recherche de profit, concurrence effrénée, effets de mode, etc) concerne directement les organisations sportives, dont les ressources humaines et financières tendent à se raréfier. Les bénévoles fuient les exigences des membres et les responsabilités de plus en plus contraignantes ainsi que le peu de valorisation dont se voit fratifier leur dévouement. Les budgets augmentent et les frais se multiplient tandis que l'aide publique se limite souvent à la portion congrue, incitant les responsables à rechercher la rentabilité. Les sportifs se transforment peu à peu en clients exigeant des services de qualité... [less ▲]

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See detailNon-alcoholic steatohepatitis: association with obesity and insulin resistance, and influence of weight loss.
Luyckx, Françoise ULg; Lefebvre, Pierre ULg; Scheen, André ULg

in Diabètes & Métabolism (2000), 26(2), 98-106

Non-alcoholic steatohepatitis (NASH) is a disease of emerging identity and importance, and is now considered as one of the commonest liver diseases in western countries. It is frequently associated with ... [more ▼]

Non-alcoholic steatohepatitis (NASH) is a disease of emerging identity and importance, and is now considered as one of the commonest liver diseases in western countries. It is frequently associated with severe obesity, especially abdominal adiposity, and is intimately related to various clinical and biological markers of the insulin resistance syndrome. Especially, both the prevalence and the severity of liver steatosis are related to male sex, body mass index, waist circumference, hyperinsulinaemia, hypertriglyceridaemia and impaired glucose tolerance or type 2 diabetes. A substantial weight loss following gastroplasty is accompanied by a marked reduction in the prevalence and the severity of the various biological abnormalities of the metabolic syndrome and, concomitantly, by an important regression of liver steatosis in most obese patients. However, in some patients, this rapid and drastic weight loss may result in a mild increase in inflammatory lesions (hepatitis), despite the regression of steatosis, which might result from the rapid mobilization of fatty acids or cytokines from adipose tissue, especially visceral fat. The intimate relationship between NASH and obesity leads to the concept that NASH may be considered as another disease of affluence, as is the insulin resistance syndrome and perhaps being part of it. [less ▲]

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See detailLa place de l'intervention de Ross (autogreffe pulmonaire) dans la chirurgie de la valve aortique
RADERMECKER, Marc ULg; GRENADE, Thierry ULg; Gach, J. et al

in Revue Médicale de Liège (2000), 55(1), 35-8

The pulmonary autograft operation consists of an aortic replacement using the autologous pulmonary valve. The pulmonary valve is substituted by a cryopreserved pulmonary homograft. This operation is in ... [more ▼]

The pulmonary autograft operation consists of an aortic replacement using the autologous pulmonary valve. The pulmonary valve is substituted by a cryopreserved pulmonary homograft. This operation is in fact a delicate double valve replacement whose benefits are linked to the viability of the new aortic substitute. The pulmonary autograft has superb hemodynamic features and very low thrombogenicity. The report of a selected observation offers the occasion of defining the current indications of this operation in aortic valve surgery. [less ▲]

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See detailLa carte des émotions : exercice structuré
Faulx, Daniel ULg

in Cahiers Internationaux de Psychologie Sociale (2000), (45), 98-103

Cet outil permet d'identifier et d'analyser la présence, la circulation et la gestion des émotions au sein d'une équipe de travail ou d'un groupe. Il propose différents modes de mesure de l'émotion au ... [more ▼]

Cet outil permet d'identifier et d'analyser la présence, la circulation et la gestion des émotions au sein d'une équipe de travail ou d'un groupe. Il propose différents modes de mesure de l'émotion au sein des groupes, et constitue à ce titre à la fois un outil de mesure et d'intervention ou de développement. [less ▲]

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See detailRelationship between CNV topography and irritability in depression
Papart, Patrick ULg; WEERTS, Pascale ULg; Pinto, Emmanuel ULg et al

in Journal of Psychophysiology (2000), 14(Suppl 1),

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See detailNumerical discretization of rotated diffusion operators in ocean models
Beckers, Jean-Marie ULg; Burchard, Hans; Deleersnijder, Eric et al

in Monthly Weather Review (2000), 128(8), 2711-2733

A method to improve the behavior of the numerical discretization of a rotated diffusion operator such as, for example, the isopycnal diffusion parameterization used in large-scale ocean models based on ... [more ▼]

A method to improve the behavior of the numerical discretization of a rotated diffusion operator such as, for example, the isopycnal diffusion parameterization used in large-scale ocean models based on the so-called z-coordinate system is presented. The authors then focus exclusively on the dynamically passive tracers and analyze some different approaches to the numerical discretization. Monotonic schemes are designed but are found to be rather complex, while simpler, linear schemes are shown to produce unphysical undershooting and overshooting. It is suggested that the choice of an appropriate discretization method depends on the importance of the rotated diffusion in a given simulation, whether the field to be diffused is dynamically active or not. [less ▲]

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See detailPredictive value of ovarian endometriosis?
NISOLLE, Michelle ULg; Donnez, Jacques

in Fertility and Sterility (2000), 73(2), 419-20

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See detailRespiration As The Main Determinant Of Carbon Balance In European Forests
Valentini, R.; Matteucci, G.; Dolman, Aj. et al

in Nature (2000), 404(6780),

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See detailRupture of a Thoracic Aneurysm in the Left Bronchus
SCHILS, F.; Deprez, A. F.; CREEMERS, Etienne ULg et al

in Acta Chirurgica Belgica (2000), 100(2), 74-6

Aortobronchic fistula is a very unusual complication of thoracic aneurysm. We report the case of a 71-year old man with rupture of a thoracic aortic aneurysm in the left main bronchus. The patient had ... [more ▼]

Aortobronchic fistula is a very unusual complication of thoracic aneurysm. We report the case of a 71-year old man with rupture of a thoracic aortic aneurysm in the left main bronchus. The patient had suffered a car crash fifteen years ago, without any evidence of aortic rupture at the time. Thereafter, he developed an aortic isthmic dilation (36 mm in diameter). The patient suffered from long standing pulmonary insufficiency and emphysema and was admitted several times on an urgent basis for acute dyspnea. During an hospitalization for respiratory distress, he presented haemoptysis and left lung hyperinflation secondary to partial fistulization and extrinsic compression of the main left bronchus. Isthmic aortic resection and prosthetic grafting was performed and the left main bronchus was closed by an autologous pericardial patch. Ten days later, following an air-leak from the bronchial closure, a transposed latissimus dorsi flap was used by the plastic surgeon to repair the defect. Nevertheless, the patient died from multisystemic failure six weeks later. [less ▲]

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See detailThe increase of the ionospheric activity as measured by GPS
Warnant, René ULg; Pottiaux, Eric

in Earth, Planets, and Space [=EPS] (2000), 52(11), 1055-1060

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See detailOne-Step Gem-Diphosphorylation of Amides and Lactams
Olive, Gilles ULg; Le Moigne, François; Mercier, Anne et al

in Synthetic Communications (2000), 30(4), 619-627

We report the extension of an easy one-step synthesis of amino gem-bisphosphonates through the reaction of amides and lactams with trialkykphosphites

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See detail"note sous J.P. Jumet, 24 février 2000"
Moreau, Pierre ULg

in Actualités du Droit (2000)

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See detailCurrent and future trends in groundwater vulnerability assessment
Gogu, Radu; Dassargues, Alain ULg

in Environmental Geology (2000), 39(6), 549-559

The concept of groundwater vulnerability is a useful tool for environmental planning and decision-making. Many different methods have been developed for assessing this vulnerability. Hydrogeologists have ... [more ▼]

The concept of groundwater vulnerability is a useful tool for environmental planning and decision-making. Many different methods have been developed for assessing this vulnerability. Hydrogeologists have failed to reach a consensus concerning the definitions of and reference terms for groundwater vulnerability assessment. Therefore, a review of vulnerability assessment and mapping methods providing a new classification system is necessary. This is focused on techniques that use the overlay and index class methods. New research challenges in vulnerability assessment are identified, especially the need for developing dynamic links between numerical models and overlay and index methods. [less ▲]

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See detailLa prescription de l'action publique
Jacobs, Ann ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2000)

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See detailPreventie van postmenopauzale osteoporose
Reginster, Jean-Yves ULg; Halkin, V

in De agenda Gynaecologie (2000), 19

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