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See detailTransport properties of bulk-bicrystal grain boundaries in artificially joined large-grain YBCO
Bradley, A. D.; Doyle, R. A.; Charalambous, D. et al

in IEEE Transactions on Applied Superconductivity (1999), 9(2), 2038-2041

A technique for joining large-grain YBCO has been used to produce bulk-bicrystal grain boundaries of different orientations. The behaviour of boundaries nominally of 0 degrees[100], 0 degrees[001] and ... [more ▼]

A technique for joining large-grain YBCO has been used to produce bulk-bicrystal grain boundaries of different orientations. The behaviour of boundaries nominally of 0 degrees[100], 0 degrees[001] and asymmetric 15 degrees[100]-tilt misorientation have been investigated using low frequency transport measurements in fields up to 7T. The boundaries exhibit a metallic normal state and a superconducting transition which broadens with increasing field having an irreversibility line which closely matches that of the adjoining grains. This same qualitative behaviour is seen in all the samples measured for field applied parallel and perpendicular to the c-axis and up to the highest current densities employed (20 Acm(-2)). Variation between the different samples due to microstructural differences are discussed. We interpret these results as strong suggestive evidence that this joining technique can be used to produce strongly-coupled large-grains for bulk-scale engineering applications. [less ▲]

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See detailUpdates in CT and MRI : the elbows
Snaps, Frédéric ULg; Reichle, J.

in Clinical Techniques in Small Animal Practice (1999), 14(3), 177-186

Computed tomography (CT) and magnetic resonance imaging (MRI) are noninvasive methods of imaging the canine cubital joint. CT images are typically acquired using contiguous 1-mm slices, a bone ... [more ▼]

Computed tomography (CT) and magnetic resonance imaging (MRI) are noninvasive methods of imaging the canine cubital joint. CT images are typically acquired using contiguous 1-mm slices, a bone reconstruction algorithm, and a field of view large enough to scan both elbows simultaneously. CT provides a detailed assessment of the medial coronoid process (MCP), radial incisure, anconeal process, and trochlear notch of the ulna; the humeral condyle; joint congruity; and osteoarthrosis. With MRI, use of a surface coil and 3D Fourier transformation gradient echo fast imaging sequences allow contiguous thin slices to be obtained. Both imaging techniques appear to be highly effective in the evaluation of elbow dysplasia, particularly for the detection of MCP fragmentation, although MRI is superior to CT for identifying nonmineralized cartilaginous fragments. [less ▲]

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See detailSevere/extreme obesity: a medical disease requiring a surgical treatment?
Scheen, André ULg; Luyckx, Françoise ULg; Desaive, Claude ULg et al

in Acta Clinica Belgica (1999), 54(3), 154-61

Obesity poses a serious health hazard and its treatment is often disappointing. Surgical approaches have been proposed for treating severe obesity (body mass index or BMI > or = 35 kg/m2) with ... [more ▼]

Obesity poses a serious health hazard and its treatment is often disappointing. Surgical approaches have been proposed for treating severe obesity (body mass index or BMI > or = 35 kg/m2) with comorbidities or extreme obesity (BMI > or = 40 kg/m2). Before accepting bariatric surgery as alternative treatment, the four following prerequisites should be met: 1. the medical condition is serious enough; 2. it can not be treated satisfactorily with classical means; 3. the surgical treatment is effective in improving the clinical situation; and 4. bariatric surgery is safe enough, so that the benefits clearly outweigh the risks. On the basis of the literature and our own experience, it appears that gastric reduction surgery may be considered as a valuable alternative for treating severe/extreme obesity, despite the possible occurrence of perioperative and, more frequently, late complications, provided that it is performed by an experienced and multidisciplinary team in well-selected patients. [less ▲]

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See detailLa vasopressine, mais pas l'ocytocinen ni le CRF, est impliquée dans la réponse du cortisol aux stress pschologiques, chez des humains sains mais anxieux
Boudare, M; Pequeux, Christel ULg; Hagelstein, Marie-Thérèse ULg et al

in Annales d'Endocrinologie (1999), 60(4), 360

Le but général de cette étude est d'évaluer la réponse au stress, à la fois sous un angle psychologique et biologique, afin d'établir l'éventuel lien qui pourrait être observé entre ces deux paramètres.

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See detailA critical compilation and extended analysis of the Ne V spectrum
Kramida, A. E.; Bastin, Thierry ULg; Biémont, Emile ULg et al

in European Physical Journal D -- Atoms, Molecules, Clusters & Optical Physics (1999), 7

Previous works devoted to the Ne V spectrum are very fragmentary and yield a rather controversial picture of this ion. A lot of unidentifi ed lines are still reported in these multiple studies. In the ... [more ▼]

Previous works devoted to the Ne V spectrum are very fragmentary and yield a rather controversial picture of this ion. A lot of unidentifi ed lines are still reported in these multiple studies. In the present paper, Hartree-Fock calculations and least-squares fi ts over the whole set of the available data (including the most recent ones) have been performed. As a result, a comprehensive view of the Ne V spectrum is presented. 10 new energy levels and 40 newly classi fied lines are proposed. An improved value of the ionisation potential of Ne V is also proposed. [less ▲]

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See detailCerebral metabolism during vegetative state and after recovery to consciousness
Laureys, Steven ULg; Lemaire, Christian ULg; Maquet, Pierre ULg et al

in Journal of Neurology, Neurosurgery & Psychiatry (1999), 67(1), 121-122

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See detailLes formes et les titulaires de la faculté prévue par l'article 1421 du Code judiciaire
Boularbah, Hakim ULg

in Revue de Droit Judiciaire et de la Preuve = Tijdschrift voor Procesrecht en Bewijsrecht (1999)

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See detailGenomic structure and chromosomal mapping of the mouse transcription factor TEF-5 (Tead3) gene
Jacquemin, Patrick; Chen, Zhi; Martial, Joseph ULg et al

in Mammalian Genome : Official Journal of the International Mammalian Genome Society (1999), 10(6), 632-4

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See detailEffects of Nimesulide and Indometacin on Cox-1 and Cox-2: A Comparative Study
de Leval, X.; Dogné, Jean-Michel ULg; Neven, P. et al

in Journal de Pharmacie de Belgique (1999), 54(3), 89-90

Evidence of the existence of two forms of cyclooxygenases and the clinical relevance of COX-2 inhibition led to the development of COX-2 selective NSAIDs. In order to evaluate this selectivity, we have ... [more ▼]

Evidence of the existence of two forms of cyclooxygenases and the clinical relevance of COX-2 inhibition led to the development of COX-2 selective NSAIDs. In order to evaluate this selectivity, we have developed and validated an enzymatic method. The precision and reproducibility of the assay were determined and COX-2 selectivity examined using nimesulide and indometacin. [less ▲]

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See detailNonprofit Organisations and Social Economy: Two Ways of Understanding the Third Sector
Mertens de Wilmars, Sybille ULg

in Annals of Public and Cooperative Economics = Annales de l'Economie Publique, Sociale et Coopérative (1999), 70:3

The term third sector refers to a set of organizations which are neither capitalist, nor governmental. First of all, this paper aims to extent B. Gui's unitary approach to the third-sector (1991) by ... [more ▼]

The term third sector refers to a set of organizations which are neither capitalist, nor governmental. First of all, this paper aims to extent B. Gui's unitary approach to the third-sector (1991) by focusing on the distinction between third sector and state-owned bodies. Next I propose to translate the non capitalist and the non governmental conditions into operational criteria. I show that these criteria vary according to the nature of the organizations (general interest versus mutual interest). This statement allows me to justifiy the emergence of two different ways of understanding the third-sector in anglo-saxon and french-speaking traditions. [less ▲]

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See detailRadiative Properties of Neutral Germanium obtained from excited-state lifetime and branching-ratio measurements and comparison with theoretial calculations
Li, Z. S.; Norin, J.; Persson, A. et al

in Physical Review. A (1999), 60

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See detailAgriculture et utilisation raisonnée de pesticides
Francis, Frédéric ULg; Gaspar, C.

in Canard Déchaîné du Kauwberg (Le) (1999), 32

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See detailValidation of an automated method for the liquid chromatographic determination of atenolol in plasma: application of a new validation protocol
Chiap, Patrice ULg; Hubert, Philippe ULg; Boulanger, Bruno ULg et al

in Analytica Chimica Acta (1999), 391(2), 227-238

In order to test the applicability of a new strategy by a Commission of the Societe Francaise des Sciences et Techniques Pharmaceutiques (SFSTP) for the validation of bioanalytical methods, an automated ... [more ▼]

In order to test the applicability of a new strategy by a Commission of the Societe Francaise des Sciences et Techniques Pharmaceutiques (SFSTP) for the validation of bioanalytical methods, an automated method was developed for the determination of atenolol in human plasma. This method was based on the use of dialysis as sample purification step, followed by enrichment of the dialysate on a precolumn and liquid chromatographic analysis. All sample handling operations were carried out automatically by means of an ASTED system. Atenolol and its internal standard (sotalol) were separated on a C-8 column with a mixture of pH 7.0 phosphate buffer containing 1-octanesulphonate and methanol (81/19; v:v) as mobile phase and monitored photometrically at 225 nm. The validation strategy comprises two steps. The experiments performed during the first step, the so called pre-validation step, have permitted the selection of the most appropriate model for the calibration curve by means of a decision tree, i.e. a least squares regression model obtained after transformation of data (square root in this case), the estimation of the limit of quantitation at 25 ng/ml by means of an accuracy profile, the determination of the calibration range (from 25 to 1000 ng/ml), the estimation of the limit of detection at 9 ng/ml and the calculation of the mean extraction efficiency (about 65%). The second step is the validation itself, comprising the evaluation of method selectivity towards endogenous components, the confirmation of the limit of quantitation, the verification of linearity and the assessment of method precision (repeatability and intermediate precision) as well as accuracy using quality control samples at different concentration levels over the range investigated. The relative standard deviation values for repeatability and intermediate precision were between 2.7% and 9.0%. Moreover, the method was found to be accurate. Indeed, the 95% one-sided confidence limits of the mean recovery did not exceed the acceptance limits of 80% and 120%. (C) 1999 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailL’ostéoporose chez la personne âgée
Reginster, Jean-Yves ULg; Taquet, AN; Fraikin, G

in Medi-Sphere (1999), 103

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See detailPregnancy Associated Glycoproteins in Ruminants: Inactive Members of the Aspartic Proteinase Family
Beckers, Jean-François ULg; Drion, Pierre ULg; Garbayo, J. M. et al

in Acta Veterinaria Hungarica (1999), 47(4), 461-9

The Pregnancy Associated Glycoproteins (PAGs) presented in this paper are largely expressed in the ruminant placenta. These proteins are classified as probably inactive members of the aspartic proteinase ... [more ▼]

The Pregnancy Associated Glycoproteins (PAGs) presented in this paper are largely expressed in the ruminant placenta. These proteins are classified as probably inactive members of the aspartic proteinase family. Pepsinogen, renin, cathepsin E [less ▲]

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See detailAnalysis of fluorescence lifetime of protochlorophyllide and chlorophyllide in isolated etioplast membranes measured from multifrequency cross-correlation phase fluorometry
Mysliwa-Kurdziel, B.; Franck, Fabrice ULg; Strzalka, K.

in Photochemistry & Photobiology (1999), 70(4), 616-623

The fluorescence decays of protochlorophyllide (Pchlide) and of chlorophyllide (Chlide) in wheat etioplast membranes were analyzed using a multiexponential fluorescence decay model. Using different ... [more ▼]

The fluorescence decays of protochlorophyllide (Pchlide) and of chlorophyllide (Chlide) in wheat etioplast membranes were analyzed using a multiexponential fluorescence decay model. Using different excitation wavelengths from 430 to 470 nm, we found that a triple-exponential model at 14 degrees C and a double-exponential model at -170 degrees C were adequate to describe the Pchlide fluorescence decay. We discuss the origin of the three fluorescence lifetime components at 14 degrees C on the basis of the dependence of their fractional intensities on the excitation wavelength and by correlating the fractional intensities with integrated fluorescence intensities of different Pchlide forms in steady-state fluorescence spectra, The fluorescence decay of the main Pchlide form, photoactive Pchlide-F657, is shown to have a complex character with a fast component of 0.25 ns and a slower component of about 2 ns. Two lifetime components of 2 ns and 5.5-6.0 ns are ascribed to the second photoactive form, Pchlide-F645, and to nonphotoactive Pchlide forms, respectively. In etioplast membranes preilluminated by a short saturating fight pulse, we found a single 5.0 ns component for Chlide-F688 (the Chlide-NADPH :protochlorophyllide oxidoreductase [POR]-NADP(+) complex) and an additional 1.6 ns component when the formation of Chlide-F696 (the Chlide-POR-NADPH complex) was promoted by exogenous NADPH, From the fluorescence lifetime results we evaluated the quantum yield of the primary photoreaction by Chlide-F696 as being 70%. [less ▲]

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See detailUDP-N-Acetyl-alpha-D-glucosamine as acceptor substrate of beta-1,4-galactosyltransferase. Enzymatic synthesis of UDP-N-acetyllactosamine.
Elling, Lothar; Zervosen, Astrid ULg; Gallego, Ricardo Gallego et al

in Glycoconjugate Journal (1999), 16(7), 327-36

The capacity of UDP-N-acetyl-alpha-D-glucosamine (UDP-GlcNAc) as an in vitro acceptor substrate for beta-1,4-galactosyltransferase (beta4GalT1, EC 2.4.1.38) from human and bovine milk and for recombinant ... [more ▼]

The capacity of UDP-N-acetyl-alpha-D-glucosamine (UDP-GlcNAc) as an in vitro acceptor substrate for beta-1,4-galactosyltransferase (beta4GalT1, EC 2.4.1.38) from human and bovine milk and for recombinant human beta4GalT1, expressed in Saccharomyces cerevisiae, was evaluated. It turned out that each of the enzymes is capable to transfer Gal from UDP-alpha-D-galactose (UDP-Gal) to UDP-GlcNAc, affording Gal(beta1-4)GlcNAc(alpha1-UDP (UDP-LacNAc). Using beta4GalT1 from human milk, a preparative enzymatic synthesis of UDP-LacNAc was carried out, and the product was characterized by fast-atom bombardment mass spectrometry and 1H and 13C NMR spectroscopy. Studies with all three beta4GalTs in the presence of alpha-lactalbumin showed that the UDP-LacNAc synthesis is inhibited and that UDP-alpha-D-glucose is not an acceptor substrate. This is the first reported synthesis of a nucleotide-activated disaccharide, employing a Leloir glycosyltransferase with a nucleotide-activated monosaccharide as acceptor substrate. Interestingly, in these studies beta4GalT1 accepts an alpha-glycosidated GlcNAc derivative. The results imply that beta4GalT1 may be responsible for the biosynthesis of UDP-LacNAc, previously isolated from human milk. [less ▲]

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See detailMise au point d'un test d'évaluation gestuelle du patient lombalgique
Vanderthommen, Marc ULg; DEFAWEUX, Michel ULg; TOMASELLA, Marco ULg et al

in Revue de la Société Belge des Ecoles du Dos (1999)

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See detailImplication des propriétés biomécaniques des muscles transformés dans le mécanisme de la cardiomyoplastie
Radermacker, M. A.; Sluse, Francis ULg; Focant, B. et al

in Journal of Cardiology (1999), 9

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See detailTheophylline Decreases Sputum Eosinophilia of Asthmatics
Louis, Renaud ULg; Bettiol, J.; Cataldo, Didier ULg et al

in International Archives of Allergy & Immunology (1999), 118(2-4, Feb-Apr), 343-4

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See detailInter-laboratory comparison of cytogenetic endpoints for the biomonitoring of radiological workers.
Thierens, H.; Vral, A.; de Ridder, L. et al

in International Journal of Radiation Biology (1999), 75(1), 23-34

PURPOSE: The evaluation of different cytogenetic endpoints of radiation damage for the biomonitoring of contract workers temporarily employed at nuclear power plants. MATERIALS AND METHODS: Blood samples ... [more ▼]

PURPOSE: The evaluation of different cytogenetic endpoints of radiation damage for the biomonitoring of contract workers temporarily employed at nuclear power plants. MATERIALS AND METHODS: Blood samples from six donors were irradiated in vitro with doses ranging from 0.1 to 2Gy 60Co gamma-rays. Compared were a conventional analysis for dicentrics, the conventional micronucleus (MN) assay, the centromere micronucleus assay using p82H and an alphaAllCen pancentromeric probe, and tricolour FISH with chromosome 2, 4 and 8 DNA probes for the scoring of translocations. RESULTS: Agreement in the number of MN between Giemsa-and propidium iodine fluorescence-stained preparations was obtained. The control samples showed higher centromere positivity for the MN after FISH with the p82H probe compared with the alphaAllCen probe. The MN results with both probes showed a slight but systematic increase in the number of centromere-positive MN with dose, indicating that radiation, although principally clastogenic, also has aneuploidogenic properties. The values of the genomic translocation frequency (FG) derived from the observed translocation frequencies were systematically higher than the dicentric yields. Comparing the sensitivity of the different methods with restriction of the scoring time to 1 day for biomonitoring purposes, the centromere micronucleus assay had the lowest dose detection limit (0.1 to 0.2 Gy). CONCLUSION: This study shows that at present only the centromere micronucleus assay can combine high sensitivity with a reasonable scoring time for the biomonitoring of relatively large populations. [less ▲]

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See detailComment j'explore ... les troubles de la calcémie
Janssens, Lise; Krzesinski, Jean-Marie ULg

in Revue Médicale de Liège (1999), 54(9), 764-769

Mechanisms for calcium homeostasis are complex but their understanding is important before investigating the calcium disorders. Hypercalcaemia is often due to hyperparathyroidism or cancers. The ... [more ▼]

Mechanisms for calcium homeostasis are complex but their understanding is important before investigating the calcium disorders. Hypercalcaemia is often due to hyperparathyroidism or cancers. The diagnostis must thus be rapid and a treatment decided in a global approach. Hypocalcaemia, more frequently noted, is often due to a general disorder with hypoalbuminemia or chronic renal failure. [less ▲]

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See detail"Destinataire final" des subsides cherche privilège, note sous Bruxelles, 1e octobre 1997
Lissoir, Bénédicte ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1999)

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See detailPharma clinics. Comment je traite ... la sténose d'artère rénale
Krzesinski, Jean-Marie ULg; Turatzinze, Léopold

in Revue Médicale de Liège (1999), 54(9), 719-721

Renal artery stenosis is mainly due to atherosclerosis, but also to fibromuscular dysplasia. Treatment can consist eisther of angioplasty (± stent) or of surgical revascularization. Hypertension induced ... [more ▼]

Renal artery stenosis is mainly due to atherosclerosis, but also to fibromuscular dysplasia. Treatment can consist eisther of angioplasty (± stent) or of surgical revascularization. Hypertension induced by atherosclerotic disease is rarely cured, but more easily controlled. The renal function is often improved and thus this disease must be searched in the presence of renal insufficiency of unknown cause or refractory hypertension. [less ▲]

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See detail4-Ethyl-2,3-dihydro-4H-pyrido[3,2-e]-1,2,4-thiadiazine 1,1-dioxide and 4-ethyl-2,3-dihydro-4H-pyrido[4,3-e]-1,2,4-thiadiazine 1,1-dioxide
Dupont, L.; Pirotte, Bernard ULg; Podona, T. et al

in Acta Crystallographica (1999), C55

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See detailNew Therapeutic options
Reginster, Jean-Yves ULg; Henrotin, Yves ULg

in Bone Depeche (1999), 5

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See detailThe Practice of European Union Citizenship
Martiniello, Marco ULg

in Research Perspectives on Migration (1999), 2(2), 16-18

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See detailEffects on nicotine administered via a transdermal delivery system on vigilance : a repeated measure study
Mancuso, Giovanna; Andrès Bénito, Pilar; Ansseau, Marc ULg et al

in Psychopharmacology (1999), 142(1), 18-23

Tested 15 male smokers (aged 18-25 yrs) in a within-Ss design to determine the influence of a transdermal patch of 21 mg nicotine on vigilance. Ss were tested on the Rapid Visual Information Processing ... [more ▼]

Tested 15 male smokers (aged 18-25 yrs) in a within-Ss design to determine the influence of a transdermal patch of 21 mg nicotine on vigilance. Ss were tested on the Rapid Visual Information Processing test 1.3, 3 and 6.3 hrs after patch application, to verify the involvement of the dose of nicotine on the performance. The results confirm and extend the knowledge on the increasing effects of nicotine on vigilance previously found with orally and transdermally administered nicotine. Moreover, results show that such performance was independent of the time of nicotine absorption, which suggests that a relatively low dose of nicotine suffices to activate vigilance processing. Regarding motor performance, no convincing effect of nicotine was observed on reaction time. ((c) 1999 APA/PsycINFO, all rights reserved) [less ▲]

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See detailDiagnostiquer les Troubles Spécifiques de l'Apprentissage
Garcet, Serge ULg

in Revue Scientifique de l'AIGS, (1999), 2

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See detailDiagnosis of myxomatosis by an indirect immunoperoxidase test
Marlier, Didier ULg; Boucraut-baralon, Corine; Vindevogel, Henri ULg

in Vlaams Diergeneeskundig Tijdschrift (1999), 68

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See detailEncurvadura Lateral de Vigas Metalicas Sujeitas à Acçao do Fogo - Estudo Numerico e Experimental
Vila Real, Paulo; Piloto, Paulo; Franssen, Jean-Marc ULg et al

in Mecânica Experimental (1999), 4

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See detailDaily and seasonal variations of the partial pressure of CO2 in surface seawater along the Belgian and southern Dutch coastal areas
Borges, Alberto ULg; Frankignoulle, Michel

in Journal of Marine Systems (1999), 19

The variations of the partial pressure of CO2 pCO2.and related parameters were determined in surface seawater along the Belgian coast, from January 1995 to June 1996, at both daily and seasonal time ... [more ▼]

The variations of the partial pressure of CO2 pCO2.and related parameters were determined in surface seawater along the Belgian coast, from January 1995 to June 1996, at both daily and seasonal time scales. The distribution of pCO2 in this area is regulated by river input from the Scheldt, biological activity and hydrodynamics. The contribution of each of these processes varies as a function of the considered time scale: i. the daily variation of pCO2 depends on the tide although modulated by the biological diel cycle; ii. the seasonal variation of pCO2 depends on the input from the Scheldt and the seasonal variations of phytoplanktonic biomass. During winter, the plume of the river Scheldt is oversaturated in pCO2 with respect to the atmosphere. During spring and summer, phytoplankton blooms occur both in the lower Scheldt estuary and in the river plume and may lead to undersaturation of pCO2 in the easternmost area of the river plume. However, the degradation of phytoplankton induces oversaturation of pCO2, in the westernmost area of the plume. Furthermore, the inter-annual variation of pCO2 depends partly on the fluctuations of the discharge of the Scheldt. Our preliminary results strongly suggest that, on an annual basis, the Scheldt plume behaves as a net source of CO2 to the atmosphere [less ▲]

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See detailPseudoscalar vertex, Goldstone boson and quark masses on the lattice
Cudell, Jean-René ULg; Le Yaouanc, A.; Pittori, Carlotta

in Physics Letters B (1999), 454

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See detailThe effect of processing on inflammatory markers in induced sputum.
Louis, Renaud ULg; Shute, J.; Goldring, K. et al

in European Respiratory Journal (1999), 13(3), 660-7

The effects of the mucolytic agent, dithioerythritol (DTE), and the temperature at which sputum processing is conducted on cellular and biochemical markers in induced sputum was assessed. Samples from ... [more ▼]

The effects of the mucolytic agent, dithioerythritol (DTE), and the temperature at which sputum processing is conducted on cellular and biochemical markers in induced sputum was assessed. Samples from healthy and atopic asthmatic subjects were treated with either DTE or phosphate-buffered saline (PBS) at 22 or 37 degrees C and compared for cell counts and concentrations of histamine, tryptase, eosinophil cationic protein (ECP), free interleukin (IL)-8, immunoglobulin (Ig)A, IL-8/IgA complexes and secretory component (SC). In addition, the influence of DTE on in vitro mediator release from blood eosinophils, basophils and bronchoalveolar lavage (BAL) mast cells was studied. Processing with DTE improved cytospin quality and increased the cell yield and measurable ECP, tryptase, IgA and SC, but reduced levels of histamine in PBS-treated samples and had no effect on IL-8. Cell counts or mediator levels were similar when sputum was processed at 22 or 37 degrees C, even though DTE induced blood basophils and BAL mast cells to release histamine at 37 degrees C. In spiking experiments, recovery of added ECP, tryptase, total IL-8 and histamine from sputum was similar in DTE- and PBS-processed sputum, but reduced for free IL-8 in PBS-treated samples. In conclusion, dithioerythritol improves cell and mediator recovery without causing cell activation when sputum processing is conducted at room temperature. The extent of recovery depends on the mediator studied. [less ▲]

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See detailA scintigraphic study of post-massage blood flow in human lower limb
Vanderthommen, Marc ULg; Depresseux, J.C.; Dauchat, L. et al

in European Journal of Physical Medicine & Rehabilitation (1999), 8(6), 159-162

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See detailZoos, éducation et malentendus: Essai d'anthropologie des émotion du visiteur de zoo
Servais, Véronique ULg

in Cahiers d'Ethologie (1999), 19(1), 1-16

In the current debate about the zoo's educational role it s usually assumed that the emotional aspect of the zoo experience impairs the scienfic knowledge that people can gain from their visit. First we ... [more ▼]

In the current debate about the zoo's educational role it s usually assumed that the emotional aspect of the zoo experience impairs the scienfic knowledge that people can gain from their visit. First we briefly describe four human-animal interactionnal patterns that can be observed in a zoo, and we recognise that indeed, in that context, the emotion experienced by the public impairs its knowledge of the animals. then we persent the Hediger's distinctin between an object and a subject animal and we hypothesise that the visitor's emotions impari animal knowledge only when the exhibited animals are object-animals. Those are incomplete animals : they are not complete beings in relation to their evolutionary environment. It is our view that when the exhibited animals are more complete organisms, the emotions can be a tool for a better knowledge of the animals. [less ▲]

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See detailContribution of the carbohydrate moiety to conformational stability of the carboxypeptidase Y high pressure study.
Dumoulin, Mireille ULg; Ueno, H.; Hayashi, R. et al

in European Journal of Biochemistry (1999), 262(2), 475-83

The process of pressure-induced denaturation of carboxypeptidase Y and the role of the carbohydrate moiety in its response to pressure and low temperature were investigated by measuring in situ the ... [more ▼]

The process of pressure-induced denaturation of carboxypeptidase Y and the role of the carbohydrate moiety in its response to pressure and low temperature were investigated by measuring in situ the catalytic activity and, the intrinsic and 8-anilino-1-naphthalene sulfonic acid binding fluorescences. Pressure-induced denaturation of carboxypeptidase Y is a process involving at least three transitions. Low pressures (below 150 MPa) induced slight conformational changes characterized by a slight decrease in the center of the spectral mass of intrinsic fluorescence, whereas no changes in 8-anilino-1-naphthalene sulfonic acid binding fluorescence were observed and 80% of the catalytic activity remained. Higher pressure (150-500 MPa) induced further conformational changes, characterized by a large decrease in the center of the spectral mass of intrinsic fluorescence, a large increase in the 8-anilino-1-naphthalene sulfonic acid binding fluorescence and the loss of all catalytic activity. Thus, this intermediate exhibited characteristics of molten globule-like state. A further increase, in pressure (above 550 MPa) induced transition from this first molten globule-like state to a second molten globule-like state. This two-stage denaturation process can be explained by assuming the existence of two independent structural domains in the carboxypeptidase molecule. A similar three-transition process was found for unglycosylated carboxypeptidase Y, but, the first two transitions clearly occurred at lower pressures than those for glycosylated carboxypeptidase Y. These findings indicate that the carbohydrate moiety protects carboxypeptidase Y against pressure-induced denaturation. The origin of the protective effects is discussed based on the known crystallographic structure of CPY. [less ▲]

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See detailL'accès à la communication scientifique, un concept global
Pochet, Bernard ULg

in Documentation & Bibliothèques (1999), 45(3), 101-105

After the observation of information retrieval behaviors and the use and management of scholarly information it is obvious that we need for information literacy courses. After several years of practice ... [more ▼]

After the observation of information retrieval behaviors and the use and management of scholarly information it is obvious that we need for information literacy courses. After several years of practice, research and reflexion quickly described, and an overview of the literature the author suggest to think scientific communication as a whole and to consider the student and researcher both as a user and as author. The article defines this whole conception of scientific communication and gives as an example a information literacy course based on this principle, making the bet that learning of scientific culture and the world of science communication must be part of the same draft training. [less ▲]

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See detailConsensus statement on the treatment of septic shock
Spapen, H.; Damas, Pierre ULg; D'Orio, Vincenzo ULg et al

in Acta Clinica Belgica (1999), 54(5), 256-262

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See detailAvantages des nouveaux traitements contre les puces et les tiques
Delaunois, A.; Gustin, Pascal ULg

in Pharma-Sphère (1999), 30

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See detail7-Iodo-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxide
Dupont, L.; Pirotte, Bernard ULg; De Tullio, Pascal ULg

in Acta Crystallographica (1999), C55

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See detailP300 and personality: an investigation with the Cloninger's model.
Hansenne, Michel ULg

in Biological Psychology (1999), 50(2), 143-55

The relationships between P300 and personality have been explored mainly in reference to the model of personality described by Eysenck because of its biological bases. Recently, Cloninger and his ... [more ▼]

The relationships between P300 and personality have been explored mainly in reference to the model of personality described by Eysenck because of its biological bases. Recently, Cloninger and his colleagues have proposed a model of personality based on four temperaments and three characters. The Temperament and Character Inventory (TCI) is a 226-item self-questionnaire developed to assess these seven dimensions of personality. In the present study, the relationships between these dimensions of personality and P300 have been investigated in 43 normal subjects. The results show that P300 amplitude is positively correlated with the novelty seeking dimension and negatively correlated with the harm avoidance dimension. In contrast, the other dimensions of the TCI were not related to P300 amplitude. Moreover, P300 latency and reaction time were not associated with the TCI dimensions of personality. This study confirms that personality is related to P300. [less ▲]

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See detailLes transferts post-mortem : réinterprétation symbolique du lieu d’enterrement dans un contexte de mobilité des populations
Schmitz, Serge ULg

in Espaces et Sociétés (Paris, France) (1999), 99

This article is the result of the study of 10.000 burial certificates. It analyses the movement of corpses in an urban region which houses 510.000 peoples and tends to explain the motivation of cemetery ... [more ▼]

This article is the result of the study of 10.000 burial certificates. It analyses the movement of corpses in an urban region which houses 510.000 peoples and tends to explain the motivation of cemetery choice. It underlines the connections between post-mortem mobility, the different levels of population mobility and culture. [less ▲]

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See detailLes anomalies congenitales des vaisseaux de la base du coeur: "ring" et "sling" vasculaires. A propos d'un cas
Radermecker, M. A.; Massin, M.; Grenade, Thierry ULg et al

in Revue Médicale de Liège (1999), 54(10), 823-8

We present a case of double aortic arch corrected by surgical interruption and full mobilization of the trachea and the esophagus. The vascular malformations of the supraaortic trunks, which form more or ... [more ▼]

We present a case of double aortic arch corrected by surgical interruption and full mobilization of the trachea and the esophagus. The vascular malformations of the supraaortic trunks, which form more or less complete vascular rings encircling the esophagus and the trachea, are reviewed. The different presentations of double aortic arch, aberrant subclavian arteries, and abnormal development of the pulmonary arteries are discussed. [less ▲]

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See detailTieleman Jansz. van Braght et la construction anabaptiste du passé
Donneau, Olivier ULg

in Revue d'Histoire Ecclésiastique (1999), 94

In his martyrology (published in 1660), the conservative Dutch Mennonite Tieleman Jansz. van Braght propose an original interpretation of the Christian past. In order to put together a succession of ... [more ▼]

In his martyrology (published in 1660), the conservative Dutch Mennonite Tieleman Jansz. van Braght propose an original interpretation of the Christian past. In order to put together a succession of witnesses, he examines one by one the ancient or medieval spiritual ancestors who, at the time, were claimed by both Catholics and Protestants. Those who seems to have been submitting to the divine principles - such as the practice of adult baptism - are considered as orthodox ; furthermore, if the orthodox suffered for their faith, they were given the title of martyr. Among the chosen ones, we thus have, besides the Anabaptists themselves: the early Christians, the Donatists, the Waldenses and the Hussites. These believers become the members of a dissenting and persecuted Church, which had held its own since the days of the Apostles. This notion conflict with the idea of Reformatio et, a fortiori, with that of Restitutio which is generally ascribed to the Anabaptists of the sixteenth century. [less ▲]

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See detailAlcoholic's deficit in the decoding of emotional facial expression
Philippot, P; Kornreich, C; Blairy, Sylvie ULg et al

in Alcoholism, Clinical & Experimental Research (1999), 23(6), 1031-1038

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See detailIntervention sur quelques aspects économiques de la réforme
Jurion, Bernard ULg

in Revue de la Faculté de Droit de l'Université de Liège (1999)

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See detailSymbolic Verification of Communication Protocols with Infinite State Spaces using QDDs
Boigelot, Bernard ULg; Godefroid, Patrice

in Formal Methods in System Design (1999), 14(3), 237-255

We study the verification of properties of communication protocols modeled by a finite set of finite-state machines that communicate by exchanging messages via unbounded FIFO queues. It is well-known that ... [more ▼]

We study the verification of properties of communication protocols modeled by a finite set of finite-state machines that communicate by exchanging messages via unbounded FIFO queues. It is well-known that most interesting verification problems, such as deadlock detection, are undecidable for this class of systems. However, in practice, these verification problems may very well turn out to be decidable for a subclass containing most "real" protocols. Motivated by this optimistic (and, we claim, realistic) observation, we present an algorithm that may construct a finite and exact representation of the state space of a communication protocol, even if this state space is infinite. Our algorithm performs a loop-first search in the state space of the protocol being analyzed. A loop-first search is a search technique that attempts to explore first the results of successive executions of loops in the protocol description (code). A new data structure named Queue-content Decision Diagram (QDD) is introduced for representing (possibly infinite) sets of queue-contents. Operations for manipulating QDDs during a loop-first search are presented. A loop-first search using QDDs has been implemented, and experiments on several communication protocols with infinite state spaces have been performed. For these examples, our tool completed its search, and produced a finite symbolic representation for these infinite state spaces. [less ▲]

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See detailTransplantation combinée du foie et du coeur chez un patient souffrant de thalassémie majeure
Detry, Olivier ULg; Defechereux, Thierry ULg; Honore, Pierre ULg et al

in Médecine & Chirurgie Digestives (1999), 28(3), 109-110

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See detailImmunocytochemistry of lipids : chemical fixatives have dramatic effects on the preservation of tissue lipids
Maneta-Peyret, Lilly; Compère, Philippe ULg; Moreau, Patrick et al

in Histochemical Journal (The) (1999), 31

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See detailLe point de vue de l'économiste
Jurion, Bernard ULg

in La nouvelle procédure fiscale, Commision Université-Palais (1999), XXX(II), 99-108

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See detailEspace urbanisé et espace non urbanisé au Grand-Duché de Luxembourg.
Schmitz, Serge ULg

in Bulletin de la Société Géographique de Liège (1999), 36

The paper uses agriculture and forestry statistics to determine major trends of both urbanized and non urbanized development in the Grand Duchy of Luxembourg. It outlines the new morphological ... [more ▼]

The paper uses agriculture and forestry statistics to determine major trends of both urbanized and non urbanized development in the Grand Duchy of Luxembourg. It outlines the new morphological urbanization. The urban areas has been confined since the indsutrial revolution to the south west of the country. However during the seventies development was structured by the transport corridors extending from the capital and mining areas. Two new urban regions began also to develop : the "dipole" Ettelbürck-Diekirch and the Moselle valley. Recent trends of urban development is in contrast to the earlier trends characterized by wide spreads morphological urbanization notably in the Oesling. [less ▲]

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See detailSite index curves and autecology of ash, sycamore and cherry in Wallonia (Southern Belgium)
Claessens, Hugues ULg; Pauwels, Dominique; Thibaut, André et al

in Forestry (1999), 72(3), 171-182

The work described in this article forms part of an exploratory study whose aim was to determine the main aspects of the autecology of ash (Fraxinus excelsior L.), sycamore (Acer pseudoplatanus L.) and ... [more ▼]

The work described in this article forms part of an exploratory study whose aim was to determine the main aspects of the autecology of ash (Fraxinus excelsior L.), sycamore (Acer pseudoplatanus L.) and cherry (Prunus avium L.) in Wallonia (Southern Belgium). The potential productivity of these species was studied using the site index approach (the height a crop achieves at a given age) which is the most widely accepted means for estimating site quality. As a first step, a set of site index curves were constructed from stem analysis and semi-permanent plots data using the Johnson (1935) and Schumacher (1939) model for ash and the Duplat and Tran-Ha (1986) model II for sycamore and cherry. For ash, dominant height achieved at age 50 is related to various soil-site characters (through adequate multiple regression analysis) in order to make the predictions of site quality applicable to both forested and non-forested land. Furthermore the sites expressed through soil attributes are classified in 'a site catalogue' for each species according to their productivity level. [less ▲]

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See detailPurification of active matrix metalloproteinase catalytic domains and its use for screening of specific stromelysin-3 inhibitors.
Kannan, R.; Ruff, M.; Kochins, J. G. et al

in Protein Expression & Purification (1999), 16

The matrix metalloproteinase (MMP) stromelysin-3 (ST3) has been shown to be involved in malignant tumor progression and therefore represents an attractive therapeutical target. In order to screen for ST3 ... [more ▼]

The matrix metalloproteinase (MMP) stromelysin-3 (ST3) has been shown to be involved in malignant tumor progression and therefore represents an attractive therapeutical target. In order to screen for ST3 synthetic inhibitors, we have produced and purified the catalytic domain of ST3, matrilysin, stromelysin-2, and membrane type-1 MMP from inclusion bodies in a bacterial system. Our strategy allowed the purification of MMPs directly in the active form, thereby avoidingin vitroactivation. A total of 140,000 synthetic compounds from the Bristol-Myers Pharmaceutical Research Institute chemical deck were tested, using a substrate-based colorimetric enzymatic assay, in which ST3 activity was evaluated through its ability to cleave and inactivate α-1 proteinase inhibitor. One ST3 inhibitor belonging to the cephalosporin family of antibiotics was thereby identified. [less ▲]

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See detailbeta-amyloid peptide interacts specifically with the carboxy-terminal domain of human apolipoprotein E: Relevance to Alzheimer's disease
Pillot, T.; Goethals, M.; Najib, J. et al

in Journal of Neurochemistry (1999), 72(1), 230-7

Growing evidence indicates the involvement of apolipoprotein E (apoE) in the development of late-onset and sporadic forms of Alzheimer's disease, although its exact role remains unclear. We previously ... [more ▼]

Growing evidence indicates the involvement of apolipoprotein E (apoE) in the development of late-onset and sporadic forms of Alzheimer's disease, although its exact role remains unclear. We previously demonstrated that beta-amyloid peptide (Abeta) displays membrane-destabilizing properties and that only apoE2 and E3 isoforms inhibit these properties. In this study, we clearly demonstrate that the carboxy-terminal lipid-binding domain of apoE (e.g., residues 200-299) is responsible for the Abeta-binding activity of apoE and that this interaction involves pairs of apoE amphipathic alpha-helices. We further demonstrate that Abeta is able to inhibit the association of the C-terminal domain of apoE with lipids due to the formation of Abeta/apoE complexes resistant to sodium dodecyl sulfate-polyacrylamide gel electrophoresis. On the contrary, the amino-terminal receptor-binding domain of apoE (e.g., residues 129-169) is not able to form stable complexes with Abeta. These data extend our understanding of human apoE-dependent binding of Abeta by involving the C-terminal domain of apoE in the efficient formation of apoE/Abeta complex. [less ▲]

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See detailClassification of medicines according to their influence on driving ability
Maes, V.; Grenez, O.; Charlier, Corinne ULg et al

in Acta Clinica Belgica (1999), S1

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See detailLa stenose sous-valvulaire aortique d'origine membraneuse
Lahaye, L.; Soyeur, D.J.; Limet, Raymond ULg et al

in Revue Médicale de Liège (1999), 54(10), 801-4

We report the case of a 55 year old patient presenting a discrete obstructive sub-aortic membrane. After clinical examination, complete echocardiographic evaluation and cardiac catheterisation, an ... [more ▼]

We report the case of a 55 year old patient presenting a discrete obstructive sub-aortic membrane. After clinical examination, complete echocardiographic evaluation and cardiac catheterisation, an operative procedure was decided and the sub-aortic membrane was resected. The results were satisfactory but the literature reports risks of re-obstruction of the left ventricular outflow tract. The article points out the importance of an early diagnosis and further stresses the major role played by transoesophageal echocardiography in the evaluation of the patient. [less ▲]

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See detailTibère et l'astrologie (Suétone, Vie de Tibère, 36 et 69)
Rochette, Bruno ULg

in Latomus : Revue d'Etudes Latines (1999), 58

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See detailStudy of the mechanism of direct laser desorption/ionisation for some small organic molecules (M < 400 daltons)
Benazouz, M.; Hakim, B.; Debrun, J. L. et al

in Rapid Communications in Mass Spectrometry : RCM (1999), 13(23), 2302-2304

Aspects of direct laser desorption/ionisation have been studied for three molecules, aminotriazole (positive ion), dinoterb and ioxynil (negative ion). The samples are deposited on metallic substrates ... [more ▼]

Aspects of direct laser desorption/ionisation have been studied for three molecules, aminotriazole (positive ion), dinoterb and ioxynil (negative ion). The samples are deposited on metallic substrates, and a nitrogen laser is used for desorption/ionisation; ion yields are measured with a time-of-flight mass spectrometer, Previous work had shown that ion yields can strongly vary from one substrate to another, and that this variation does not reflect the (calculated) metal surface temperatures. New results obtained in this work indicate that the desorption/ionisation mechanism is linked to the physical state of the substrate surface. Copyright (C) 1999 John Wiley & Sons, Ltd. [less ▲]

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See detailState of current therapy and patient care in Europe.
Lefebvre, Pierre ULg; Scheen, André ULg

in International Journal of Clinical Practice. Supplement (1999), 107

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See detailThe SFSTP guide on the validation of chromatographic methods for drug bioanalysis: from the Washington Conference to the laboratory
Hubert, Philippe ULg; Chiap, Patrice ULg; Crommen, Jacques ULg et al

in Analytica Chimica Acta (1999), 391(2), 135-148

On the basis of the guidelines given in the Washington Conference report and the ICH (International Conference of Harmonisation) recommendations some suggestions about experimental design and data ... [more ▼]

On the basis of the guidelines given in the Washington Conference report and the ICH (International Conference of Harmonisation) recommendations some suggestions about experimental design and data evaluation are proposed by an SFSTP Commission dedicated to the validation of chromatographic methods in bioanalysis. In a series of meetings, members of this Commission have tried to elaborate a rational, practical and statistically reliable strategy to assure the quality of the analytical results generated. This strategy has been formalised in a guide and the main suggestions made by the Commission are summarised in the present paper. The SFSTP guide has been produced to help analysts from the pharmaceutical industry to validate their bioanalytical methods, It is the result of a consensus between professionals having expertise in bioanalytical and/or statistical fields. The suggestions presented in this paper should therefore help the analyst to design and perform the minimum number of validation experiments needed to obtain all the required information to establish and demonstrate the reliability of its analytical procedure. The SFSTP guide suggests a validation strategy in two steps: a pre-validation and the validation itself. An experimental design is described for each of these steps and the main aspects discussed in the paper are related to the selection of the most appropriate calibration model to fit experimental data and the most suitable way to determine the limit(s) of quantitation and subsequently the calibration range as well as the optimum number of experiments to be performed in the validation phase. (C) 1999 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailViaticum = facultas
Rochette, Bruno ULg

in Latomus : Revue d'Etudes Latines (1999), 58

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See detailEffects of Inhalation of Dust and Endotoxin on Respiratory Tracts of Pigs
Urbain, B.; Mast, J.; Beerens, Dominique ULg et al

in American Journal of Veterinary Research (1999), 60(9), 1055-1060

OBJECTIVE: To assess the effects of inhalation of feed flour dust and dustborne endotoxin on respiratory tracts of pigs. ANIMALS: 29 healthy Belgian Landrace pigs. PROCEDURE: Pigs housed in an ... [more ▼]

OBJECTIVE: To assess the effects of inhalation of feed flour dust and dustborne endotoxin on respiratory tracts of pigs. ANIMALS: 29 healthy Belgian Landrace pigs. PROCEDURE: Pigs housed in an environmental chamber were exposed for 6 days to feed flour dust (1 to 15 mg/m3) and dustborne endotoxins (50 to 2,500 ng/m3). Effects were evaluated by measuring albumin concentration, lactate dehydrogenase (LDH) activity, cell composition of nasal lavage (NL) and bronchoalveolar lavage (BAL) fluids and blood, and percentages of CD4+ and CD8+ T lymphocytes in blood and lavage fluids. Dustborne endotoxin was obtained by mixing endotoxins from Escherichia coli (serotype O127:B8) with feed flour before spraying the flour in the environmental chamber. RESULTS: Exposure did not affect cell composition of NL fluid or blood. Total cell counts of BAL fluids were increased in all groups exposed to dust. Macrophage counts were increased in pigs exposed to inhalable dust concentrations as low as 4.4 mg/m3, and lymphocyte counts were increased in groups exposed to high dust concentrations. Percentages of CD4+ and CD8+ T lymphocytes in blood and lavage fluids were unchanged. In all dust-exposed groups, albumin content of BAL fluid was increased, whereas LDH activity was unaffected. Macrophage and lymphocyte infiltration and edema in the bronchi were identified by light microscopy. Effects attributable to E. coli endotoxin exposure were not identified. CONCLUSIONS: Inhalation of feed flour dust did not affect nasal mucosa but did induce bronchial airway inflammation. Dustborne endotoxins did not have effects attributable to endotoxin alone. [less ▲]

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See detailEnquête sur le "pouvoir thérapeutique" des dauphins
Servais, Véronique ULg

in Recherches en Communication (1999), 12

Do dolphins have a "therapeutic power?". We devised an experimental study to test the hypothesis that interacting with dolphins improves the learning in autistic children. The ambiguous results suggest ... [more ▼]

Do dolphins have a "therapeutic power?". We devised an experimental study to test the hypothesis that interacting with dolphins improves the learning in autistic children. The ambiguous results suggest that the "therapeutic effect" of animals are very sensitive to the experimental setting designed to demonstrate them. They tend to disappear in very stricly controlled conditions. The study also shows that the hypothesis that talk about "therapeutic effect" of animals are formally analogous to the magical talks about dolphin's "power to heal". [less ▲]

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See detailUne justice pénale européenne après Amsterdam
Flore, Daniel ULg

in Journal des Tribunaux Droit Européen (1999)

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See detailConstraint-generating dependencies
Baudinet, Marianne; Chomicki, Jan; Wolper, Pierre ULg

in Journal of Computer & System Sciences (1999), 59(1), 94-115

Traditionally, dependency theory has been developed for uninterpreted data. Specifically, the only assumption that is made about the data domains is that data values can be compared for equality. However ... [more ▼]

Traditionally, dependency theory has been developed for uninterpreted data. Specifically, the only assumption that is made about the data domains is that data values can be compared for equality. However, data is often interpreted and there can be advantages in considering data as such, for instance, obtaining more compact representations as is done in constraint databases. This paper considers dependency theory in the context of interpreted data. Specifically, it studies constraint-generating dependencies. These are a generalization of equality-generating dependencies where equality requirements are replaced by constraints on an interpreted domain. The main technical results in the paper are a general decision procedure for the implication and consistency problems for constraint-generating dependencies and complexity results for specific classes of such dependencies over given domains. The decision procedure proceeds by reducing the dependency problem to a decision problem for the constraint theory of interest and is applicable as soon as the underlying constraint theory is decidable. The complexity results are, in some cases, directly lifted from the constraint theory; in other cases, optimal complexity bounds are obtained by taking into account the specific form of the constraint decision problem obtained by reducing the dependency implication problem. (C) 1999 Academic Press. [less ▲]

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See detailLa mortalité embryonnaire. 2. Implications hormonales
Hanzen, Christian ULg; Lourtie, O.; Drion, Pierre ULg et al

in Annales de Médecine Vétérinaire (1999), 143

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See detailLicéité des baux au regard de la police de l'aménagement du territoire et de l'urbanisme
Delnoy, Michel ULg

in Actualités Juridiques des Baux (1999)

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See detailDeactivation mechanisms and regeneration of a bimetallic hydrodechlorination catalyst
Heinrichs, Benoît ULg; Noville, Francis ULg; Schoebrechts, Jean-Paul et al

in Studies in Surface Science and Catalysis (1999), 126

The temporal evolution of the activity and selectivity of a 1.9%Pd-3.7%Ag/SiO2 catalyst during selective hydrodechlorination of 1,2-dichloroethane into ethylene is examined. A comparison between the ... [more ▼]

The temporal evolution of the activity and selectivity of a 1.9%Pd-3.7%Ag/SiO2 catalyst during selective hydrodechlorination of 1,2-dichloroethane into ethylene is examined. A comparison between the physico-chemical properties of the fresh catalyst and of the deactivated one suggests a deactivation mechanism by poisoning or coking of Ag sites at the surface of the active Pd-Ag particles. A regeneration treatment is proposed which allows to restore the initial properties of the fresh catalyst. [less ▲]

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See detailTroubles psychiatriques et dangerosité
Papart, Patrick ULg

in Acta Psychiatrica Belgica (1999), 99

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See detailComparaison des Kess-Kess de Hmar Lakhdad (Emsien, Maroc) et des monticules micritiques de l'anticlinorium de Philippeville (Frasnien, Belgique)
Hilali, A.; Lachkem, H.; Boulvain, Frédéric ULg

in Geologica Belgica (1999), 1

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds ... [more ▼]

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds, located SE of Erfoud (Moroccan Antiatlas). Fenestral structures, which are very abundant, occur from the base to the top of most buildups. These structures are classified in two groups: stromatactis s.s. and stromatactoid fenestrae. each of them showing a high morphological variability. These fenestrae look very similar to the structures already described from the Belgian mud mounds. However, their attribution to sponges cannot be demonstrated. Microstromatolifhes, a microbial structure, are common in the Moroccan and Belgian buildups. The numerous sedi-mentological similarities between the two types of mounds allow to assign the facies of the Kess-kess to the coral-crinoidal limestones at the base of the Belgian buildups. This comparison justifies a paleoecological and paleobathy-metrical interpretation of the Moroccan mud mounds. [less ▲]

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See detailPrognostic Factors in Urothelial Renal Pelvis and Ureter Tumours: a Multicentre Rare Cancer Network Study
Ozsahin, M; Zouhair, A; Villa, S et al

in European Journal of Cancer & Clinical Oncology (1999), 35/5

To assess the prognostic factors in patients with transitional-cell carcinoma of the renal pelvis and/or ureter, a series of 138 patients with transitional-cell carcinoma of the renal pelvis and/or ureter ... [more ▼]

To assess the prognostic factors in patients with transitional-cell carcinoma of the renal pelvis and/or ureter, a series of 138 patients with transitional-cell carcinoma of the renal pelvis and/or ureter was collected in a retrospective multicentre study. 12 patients with distant metastases were excluded from the statistical evaluation. All but 3 patients underwent radical surgery: nephroureterectomy (n=71), nephroureterectomy and lymphadenectomy (n=20), nephroureterectomy and partial bladder resection or transurethral resection (n=20), nephrectomy (n=10), and ureterectomy (n=5). Sixty-one per cent (n=77) of the tumours were located in the renal pelvis, and 21% (n=27) in the ureter (both in 22 [17%]). Following surgery, residual tumour was still present in 33 patients (16 microscopic and 17 macroscopic). Postoperative radiotherapy was given to 45 (36%) patients. The median follow-up period was 39 months. In a median period of 9 months, 66% of the patients relapsed (34 local, 7 locoregional, 16 regional, and 24 distant). The 5- and 10-year survival were 29% and 19%, respectively, in all patients. In univariate analyses, statistically significant factors influencing the outcome were Karnofsky index, pT-classification, pN-classification, tumour localisation, grade, and residual tumour after surgery. Multivariate analysis revealed that independent prognostic factors influencing outcome were pT-classification, the existence of residual tumour, and tumour localisation. In patients with urothelial renal pelvis and/or ureter tumours, a radical surgical attitude is mandatory; and the presence of tumour in the ureter is associated with a poorer prognosis. [less ▲]

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See detailAt the center, what?’ Giacomo Joyce, Roland Barthes and the Novelistic Fragment
Delville, Michel ULg

in James Joyce Quarterly (1999), 36(4), 765-780

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See detailRadio-oncologie et radiothérapie. Confirmation de l'efficacité des radiations ionisantes en oncologie, et renouveau de leur intérêt dans les affections non oncologiques : Acquisitions thérapeutiques 1998
OZSAHIN; MIRIMANOFF; PICA, A et al

in Médecine et Hygiène (1999), 54(2238), 100-111

En 1998, plusieurs études ont clarifié ou confirmé l'effet positif de la radiothérapie dans le cancer du sein in situ, dans différents types de lymphomes non hodgkinien et hodgkinien, et dans le cancer ... [more ▼]

En 1998, plusieurs études ont clarifié ou confirmé l'effet positif de la radiothérapie dans le cancer du sein in situ, dans différents types de lymphomes non hodgkinien et hodgkinien, et dans le cancer bronchique à petites cellules. Deux métaanalyses par contre semblent remettre en cause la radiothérapie, dans la maladie de Hodgkin de stade avancé et dans l'approche postopératoire du cancer ronchique à non petites cellules. Ces méta-analyses comportent toutefois d'importantes faiblesses et doivent être interprétées de façon critique. Dans le domaine technique de la radio-oncologie, les progrès spectaculaires de la planification assistée par ordinateur et l'intégration de l'imagerie IRM peuvent maintenant s'appliquer aussi à la curiethérapie. Enfin, la radiothéraple dans les affections non oncologiques suscite un nouvel intérêt, comme par exemple la curiethérapie intracoronarienne, un traitement prometteur pour prévenir la resténose coronarienne. [less ▲]

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See detailThe Development of a methodology to measure fearfullness in horses. Waltham Symposium "The role of the horse in Europe"
Vierin, M.; Vandenheede, Marc ULg; Bouissou, Marie-France et al

in Equine Veterinary Journal. Supplement (1999), 28

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See detailLes aliments industriels chez les carnivores domestiques : III. L'alimentation des chiens de grande race en croissance.
Derua, N.; Istasse, Louis ULg; Diez, Marianne ULg

in Annales de Médecine Vétérinaire (1999), 143

Actually the number of pet foods for growing dogs is increasing, so that the choice is becoming more and more difficult. The specific feeding of puppies of large and giant breeds is documented in many ... [more ▼]

Actually the number of pet foods for growing dogs is increasing, so that the choice is becoming more and more difficult. The specific feeding of puppies of large and giant breeds is documented in many studies. The aim of the present paper is to summarise the main studies related to skeletal disorders in the growing dog in order to avoid feeding errors by the practitioner. The requirements of the growing dogs are reviewed along with the development of the main orthopaedic diseases. Then the nutrients to be taken into consideration in the feeding of the growing dogs are discussed. Finally a comparison between different pet foods for growing dog shows a largely variable composition. Practical applications are made to compare the nutrient supplies from different foods to dogs of medium and large breeds. [less ▲]

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See detailIntracranial pressure during liver transplantation for fulminant hepatic failure.
Detry, Olivier ULg; Arkadopoulos, N.; Ting, P. et al

in Transplantation (1999), 67(5), 767-70

During orthotopic liver transplantation (OLT) for fulminant hepatic failure (FHF), some patients develop cerebral injury secondary to intracranial hypertension. We monitored intracranial pressure (ICP ... [more ▼]

During orthotopic liver transplantation (OLT) for fulminant hepatic failure (FHF), some patients develop cerebral injury secondary to intracranial hypertension. We monitored intracranial pressure (ICP) and cerebral perfusion pressure (CPP) before and during OLT in 12 FHF patients undergoing transplantation. All four patients who had normal ICP preoperatively maintained normal ICP/CPP throughout OLT. During OLT, four of the eight patients with pretransplant intracranial hypertension had six episodes of ICP increase. These episodes of intracranial hypertension occurred during failing liver dissection (n=3) and graft reperfusion (n=3). At the end of the anhepatic phase, the ICP was lower than the preoperative ICP in all patients, and was below 15 mmHg in all but one patient. These data suggest that in FHF patients who develop intracranial hypertension before OLT, dissection of the native liver and graft reperfusion are associated with a risk of brain injury resulting from intracranial hypertension and cerebral hypoperfusion. [less ▲]

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See detailInterlaboratory studies on two high-performance liquid chromatographic assays for tylosin (tartrate)
Vander Heyden, Y.; Saevels, J.; Roets, E. et al

in Journal of Chromatography. A (1999), 830(1), 3-28

An interlaboratory study was performed on two high-performance liquid chromatographic methods to determine tylosin. The first method is a reversed-phase HPLC on a C-18 column, while the second is a method ... [more ▼]

An interlaboratory study was performed on two high-performance liquid chromatographic methods to determine tylosin. The first method is a reversed-phase HPLC on a C-18 column, while the second is a method using a polymeric stationary phase. The first method is described in several pharmacopoeia monographs on tylosin, to determine the composition of a tylosin mixture, while the second method is recently proposed to determine both the composition and the contents in such a mixture. The interlaboratory studies were set-up and interpreted according to ISO guidelines. This paper is written as a tutorial type of article explaining the principles and methods of these guidelines. The results of both methods were compared. Both were found to have disadvantages but in general the old method is still preferred, both for composition determination and to assay the components. (C) 1999 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailUn siècle d'histoire coopérative à travers les statistiques de l'A.C.I.
Mignot, Delphine; Defourny, Jacques ULg; Leclerc, André

in Annals of Public and Cooperative Economics = Annales de l'Economie Publique, Sociale et Coopérative (1999), 70(1), 75-105

Beaucoup d'auteurs se sont déjà penchés sur l'évolution quantitative du mouvement coopératif; mais généralement leurs analyses se limitaient à un secteur, à une région ou à une période particulière. Grâce ... [more ▼]

Beaucoup d'auteurs se sont déjà penchés sur l'évolution quantitative du mouvement coopératif; mais généralement leurs analyses se limitaient à un secteur, à une région ou à une période particulière. Grâce à une collecte effectuée par A. Leclerc (Université de Moncton, Canada) de toutes les informations statistiques détenues par l'Alliance Coopérative Internationale, ce travail peut s'appuyer sur une base de données exceptionnelle concernant le nombre de coopérateurs affiliés à l'A.C.I. depuis 1896. Sur base de ce recensement, les auteurs ont cherché à déterminer les grandes orientations de l'évolution du sociétariat coopératif sur une période longue de près d'un siècle. Dans cet article, ils présentent la plupart des résultats obtenus en découpant la période analysée en quatre phases de développement du mouvement coopératif mondial. [less ▲]

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See detailA comparison of advanced thermal cycles suitable for upgrading existing power plant
Heyen, Georges ULg; Kalitventzeff, Boris ULg

in Applied Thermal Engineering (1999), 19(3), 227-237

In view of the constant growth of electricity usage and public pressure to reduce the dependence on nuclear power plants in the energy supply, solutions are sought to increase the capacity of power plants ... [more ▼]

In view of the constant growth of electricity usage and public pressure to reduce the dependence on nuclear power plants in the energy supply, solutions are sought to increase the capacity of power plants using fossil fuels. Highly efficient cycles are available : gas turbines combined with waste heat boilers and steam cycles are able to achieve efficiencies above 50-55%. However building new plants requires a large amount of capital. Alternative proposals are based on upgrades of existing plants : capital savings are expected by reusing part of the facilities. In the present study, three parallel proposals are compared on the basis of exergy efficiency; cost of investment and flexibility of operation are also discussed. They are compared with classical Rankine cycle and state of the art combined cycles. (C) 1998 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailProphylactic Use of Alfacalcidol in Corticosteroid-Induced Osteoporosis
Reginster, Jean-Yves ULg; Kuntz, D.; Verdickt, W. et al

in Osteoporosis International (1999), 9(1), 75-81

One hundred and forty-five patients suffering from diseases requiring long-term treatment with high doses of corticosteroids (30 mg/day or greater of prednisolone) were recruited to the study. Patients ... [more ▼]

One hundred and forty-five patients suffering from diseases requiring long-term treatment with high doses of corticosteroids (30 mg/day or greater of prednisolone) were recruited to the study. Patients had to be steroid naive on entry to the study (not more than 15 days of treatment with a corticosteroid within the previous 24 months). Patients were randomized to receive either 1 microgram/day alfacalcidol or placebo capsules for 12 months. Bone mineral density (BMD) of the lumbar spine was assessed by dual-photon absorptiometry on entry and after 3, 6 and 12 months' treatment. Safety was monitored by the recording of all adverse events reported by patients and the regular screening of blood samples for hematology and serum biochemistry. Of the 145 patients, 74 were randomized to alfacalcidol and 71 to placebo. The treatment groups were well matched at baseline with no significant differences in demographic, clinical or biochemical parameters. The mean equivalent dose of prednisolone at baseline was 46.6 mg/day and 46.3 mg/day for the alfacalcidol and placebo group respectively. From the 145 patients randomized to treatment, 71 (38 who received alfacalcidol and 33 who received placebo) provided BMD data both at baseline and at 3, 6 and 12 months. The percentage change in BMD after 6 months' treatment was -2.11% in the alfacalcidol group and -4.00% in the placebo group (p = 0.39). After 12 months the percentage change in BMD was +0.39% (CI: -4.28 to 4.81) in the alfacalcidol group and -5.67% (CI: -8.13 to -3.21) in the placebo group, this difference (6.06%, CI: 0.88 to 11.24) being statistically significant (p = 0.02). An intention to treat analysis also showed a significant difference between the two treatment groups in alfacalcidol's favor (3.81%, p = 0.01; CI: 0.92 to 6.70). There was no significant difference between the two treatment groups in the corticosteroid dose at any time point during the study. Serum calcium was measured throughout and there were no significant differences between the two treatment groups at any visit. This study suggests that alfacalcidol can prevent corticosteroid-induced bone loss from the lumbar spine. Long-term use of alfacalcidol was not associated with any significant adverse effects in this diverse group of patients. [less ▲]

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See detailLes aliments industriels chez les carnivores domestiques : II. Choix des ingrédients et application aux aliments "Premium"
Derua, N.; Istasse, Louis ULg; Diez, Marianne ULg

in Annales de Médecine Vétérinaire (1999), 143

Over the last 10 years the number of premium foods is increasing in the petfood industry for companion animals. It is often difficult for the vets in practice to compare different premium foods. The ... [more ▼]

Over the last 10 years the number of premium foods is increasing in the petfood industry for companion animals. It is often difficult for the vets in practice to compare different premium foods. The ingredients sources used in diet formulation remain a criterion to indirectly evaluate the quality. A judicious choice of feedstuffs directly influences palatability and digestibility of each diet. The present paper aims to describe the different nutrient sources used in the premium foods industry. Each nutrient and its sources are presented separately starting by protein, fat and carbohydrates and ending with vitamins and minerals. Labelling according to the offical recommandations is also reported. [less ▲]

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See detailNumerical simulation of crashworthiness with an implicit finite element code
Graillet, Denis; Ponthot, Jean-Philippe ULg

in Aircraft Engineering & Aerospace Technology (1999), 71(1), 12-20

Implicit and explicit time integration schemes in conjunction with the finite element method are presented for the transient response of highly non-linear problems such as impact situations exhibiting ... [more ▼]

Implicit and explicit time integration schemes in conjunction with the finite element method are presented for the transient response of highly non-linear problems such as impact situations exhibiting important material dissipation. Surprisingly the implicit schemes lead to excellent convergence properties that make them a cost-efficient alternative to explicit scheme generally advocated as the best choice for these problems. As numerical illustrations, we present here the academic impact between two flexible bodies, a long tube and a long plate, as well as a more industrial-oriented application: the impact between a fan blade and a double casing. [less ▲]

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See detailContribution de l'hypertension arterielle au risque vasculaire du diabetique.
Marre, M.; Bouhanick, B.; Hadjadj, S. et al

in Diabètes & Métabolism (1999), 25 Suppl 3

Hypertension is a major cardiovascular risk factor in diabetic subjects. Recent trials have suggested that blood pressure objectives should be < or = 140/80 mmHg. However, there is currently no evidence ... [more ▼]

Hypertension is a major cardiovascular risk factor in diabetic subjects. Recent trials have suggested that blood pressure objectives should be < or = 140/80 mmHg. However, there is currently no evidence supporting any particular preferential drug strategy for this treatment objective. [less ▲]

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See detailH-1-N-15 HMQC for the identification of metal-bound histidines in Cd-113-substituted Bacillus cereus zinc beta-lactamase
Damblon, Christian ULg; Prosperi, Christelle ULg; Lian, L. Y. et al

in Journal of the American Chemical Society (1999), 121(49), 11575-11576

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See detailTarif de cubage "peuplement" pour les mélèzes en belgique méridionale
Pauwels, Dominique; Rondeux, Jacques ULg

in Revue Forestière Française (1999), 51(5), 605-611

Dendrometric data taken from 150 temporary plots set up in even-aged stands of larch trees in southern Belgium (French-speaking region) were used to devise a "stand" volume table that expresses the stem ... [more ▼]

Dendrometric data taken from 150 temporary plots set up in even-aged stands of larch trees in southern Belgium (French-speaking region) were used to devise a "stand" volume table that expresses the stem solid volume (for log girths not less than 22 cm) per hectare of larch depending on the land surface areas and dominant tree heights. [less ▲]

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See detailInfluence de facteurs abiotiques ou biotiques sur l'evaluation de la sensibilite d'Aphidius rhopalosiphi De Stefani-Perez a la phosalone.
Guelton, O.; Mahaut, T.; Deleu, R. et al

in Parasitica (1999), 54(2-3),

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See detailSème inhérent et sème afférent. Examen des critères théoriques dans la sémantique interprétative de François Rastier
Badir, Sémir ULg

in Travaux de linguistique : revue internationale de linguistique Française (1999), 38

La sémantique interprétative, dont la rentabilité des applications, tant dans les études littéraires que dans les analyse de bases de données lexicologiques, n’est plus à vanter, repose sur quelques ... [more ▼]

La sémantique interprétative, dont la rentabilité des applications, tant dans les études littéraires que dans les analyse de bases de données lexicologiques, n’est plus à vanter, repose sur quelques critères théoriques relatifs à la détermination des différents types de sèmes (sème inhérent et sème afférent; sème spécifique et sème générique). On s’attache ici d’abord à montrer que ces critères, en dépit de leurs points d’ancrage dans la théorie structurale, ne sont pas définis de manière satisfaisante par François Rastier, initiateur et théoricien de cette sémantique. Puis on propose, au moins à titre d’hypothèse théorique dépourvue de contradiction, une nouvelle formulation des critères distinctifs des sèmes. [less ▲]

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See detailInfantile and juvenile presentations of Alexander's disease: a report of two cases.
Deprez, Manuel ULg; D'Hooghe, M.; Misson, Jean-Paul ULg et al

in Acta Neurologica Scandinavica (1999), 99(3), 158-65

We describe 2 new cases of Alexander's disease, the first to be reported in Belgium. The first patient, a 4-year-old girl, presented with progressive megalencephaly, mental retardation, spastic ... [more ▼]

We describe 2 new cases of Alexander's disease, the first to be reported in Belgium. The first patient, a 4-year-old girl, presented with progressive megalencephaly, mental retardation, spastic tetraparesis, ataxia and epilepsy: post-mortem examination showed widespread myelin loss with Rosenthal fibers (RFs) accumulation throughout the neuraxis. She was the third of heterozygotic twins, the 2 others having developed normally and being alive at age 5 years. The second patient developed at age 10 years and over a decade spastic paraparesis, palatal myoclonus, nystagmus, thoracic hyperkyphosis and thoraco-lumbar scoliosis with radiological findings of bilateral anterior leukoencephalopathy. Brain stereotactic biopsy at age 16 years demonstrated numerous RFs. With these 2 cases, we review the literature on the various clinico-pathological conditions reported as Alexander's disease. We discuss the nosology of this entity and the pathogeny of RFs formation and dysmyelination. Clues to the diagnosis of this encephalopathy in the living patient are briefly described. [less ▲]

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See detailImmunohistochemical study of the rectus sheath and transversalis facia in adult groin hernias
PANS, Alain ULg; Pierard, Gérald ULg; Albert, Adelin ULg

in Hernia : the Journal of Hernias & Abdominal Wall Surgery (1999), 3

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See detailFourfold basal plane anisotropy of the nonlocal magnetization of YNi2B2C
Civale, L.; Silhanek, Alejandro ULg; Thompson, J. R. et al

in Physical Review Letters (1999), 83(19), 3920-3923

Studies of single crystal YNi2B2C have revealed a fourfold anisotropy of the equilibrium maenetization in the square crystallographic basal plane. This pi/2 periodicity occurs deep in the superconductive ... [more ▼]

Studies of single crystal YNi2B2C have revealed a fourfold anisotropy of the equilibrium maenetization in the square crystallographic basal plane. This pi/2 periodicity occurs deep in the superconductive mixed state. In this crystal symmetry, an ordinary superconductive mass anisotropy (as in usual London theory) allows only a constant, isotropic response. In contrast, the experimental results are well described by generalized London theory incorporating nonlocal electrodynamics, as needed for this clean, intermediate-kappa superconductor. [less ▲]

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