References of "2003"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailDesign and simulation of a solar dryer for agriculture products
Bennamoun, Lyes ULg; Belhamri, Azeddine

in Journal of Food Engineering (2003), 59(2-3),

Detailed reference viewed: 48 (6 ULg)
Full Text
Peer Reviewed
See detailDuplex ultrasound as first-line screening test for patients suspected of renal artery stenosis: prospective evaluation in high-risk group.
NCHIMI LONGANG, Alain ULg; Biquet, J. F.; Brisbois, D. et al

in European Radiology (2003), 13(6), 1413-9

Our objective was to assess how far the progress in ultrasound devices has increased feasibility and accuracy of Duplex ultrasound (DUS) for the diagnosis of renal artery stenosis (RAS), in a population ... [more ▼]

Our objective was to assess how far the progress in ultrasound devices has increased feasibility and accuracy of Duplex ultrasound (DUS) for the diagnosis of renal artery stenosis (RAS), in a population with high prevalence of atherosclerotic renovascular lesions. Ninety-one hypertensive patients with atherosclerotic disease were prospectively evaluated by both DUS and digital subtraction angiography (DSA) of the renal arteries. Only proximal criteria (peak systolic velocity >180 mm/s or renal-to-aortic ratio >3.5) were used for the diagnosis of significant RAS (>60% narrowing). For both techniques, two readers were involved for interobserver variability study. Two hundred one arteries were demonstrated by DSA on 182 available kidneys. The prevalence of RAS among the study group was 37%. Sixteen of the 19 accessory arteries were not seen at DUS; in 8 patients, one renal artery was not seen at DUS (feasibility 91%). On the 177 arteries assessed, in comparison with DSA, DUS yielded 96, 91, and 97% mean values of accuracy, sensitivity, and specificity, respectively. Kappa for interobserver agreement was 0.95 for DUS and 0.92 for DSA. Although still unreliable for the detection of accessory arteries, DUS is in our experience an accurate and reproducible diagnostic test for RAS. [less ▲]

Detailed reference viewed: 13 (7 ULg)
Full Text
Peer Reviewed
See detailThe Sturtian 'snowball' glaciation: fire and ice
Godderis, Y.; Donnadieu, Y.; Nedelec, A. et al

in Earth And Planetary Science Letters (2003), 211(1-2), 1-12

The Sturtian 'snowball' glaciation (730 Ma) is contemporary with the dislocation of the Rodinia supercontinent. This dislocation is heralded and accompanied by intense magmatic events, including the onset ... [more ▼]

The Sturtian 'snowball' glaciation (730 Ma) is contemporary with the dislocation of the Rodinia supercontinent. This dislocation is heralded and accompanied by intense magmatic events, including the onset of large basaltic provinces between 825 and 755 Ma. Among these magmatic events, the most important one is the onset of a Laurentian magmatic province at 780 Ma around a latitude of 30degreesN. The presence of these fresh basaltic provinces increases the weatherability of the continental surfaces, resulting in an enhanced consumption of atmospheric CO2 through weathering, inducing a global long-term climatic cooling. Based on recent weathering laws for basaltic lithology and on climatic model results, we show that the weathering of a 6 x 10(6) km(2) basaltic province located within the equatorial region (where weathering of the province and consumption of CO2 are boosted by optimal climatic conditions) is sufficient to trigger a snowball glaciation, assuming a pre-perturbation PCO2 value of 280 ppmv. We show that the Laurentian magmatic province might be the main culprit for the initiation of the Sturtian 'snowball' glaciation, since the Laurentian magmatic province had drifted within the equatorial region by the time of the glaciation. (C) 2003 Elsevier Science B.V. All rights reserved. [less ▲]

Detailed reference viewed: 56 (6 ULg)
See detailRegulation of the xylanolytic system in Streptomyces species
Rigali, Sébastien ULg

Scientific conference (2003)

Detailed reference viewed: 5 (3 ULg)
Full Text
Peer Reviewed
See detailLe complexe Chrysoperla carnea en Belgique (Neuroptera : Chrysopidae)
Bozsik, Andras; Mignon, Jacques ULg; Gaspar, Charles

in Notes Fauniques de Gembloux (2003), 50

De 1997 à 2002, près de 4000 Chrysoperla carnea sensu lato furent collectées dans quinze localités de Belgique, principalement dans la ville de Gembloux (Province de Namur). Le fauchage de la végétation à ... [more ▼]

De 1997 à 2002, près de 4000 Chrysoperla carnea sensu lato furent collectées dans quinze localités de Belgique, principalement dans la ville de Gembloux (Province de Namur). Le fauchage de la végétation à l’aide d’un filet représente le principal mode d’échantillonnage. Les individus capturés furent identifiés sur base des descriptions de Thierry et al. (1992), Duelli (1995, 1999 communication personnelle), ainsi que par comparaison, soit avec différents types morphologiques (de D. Thierry), soit à des individus identifiés sur base de leurs chants (par P. Duelli). Chrysoperla kolthoffi sensu Cloupeau (Ch.c.c.4. ou « motorboat » sensu Henry) constitue le taxon le plus représenté dans les différentes localités. Chrysoperla carnea sensu Cloupeau (« low motorboat » sensu Henry) est également souvent rencontrée abondamment, principalement en automne. Seule Chrysoperla lucasina Lacroix est observée plus rarement chaque année et dans chaque lieu. La fréquence saisonnière de Ch. carnea s.C. est variable. Ainsi, elle est relativement faible en été et elle augmente progressivement au cours de l’automne. A cette période, les proportions de Ch. kolthoffi diminuent tandis que le taux de Ch. lucasina reste stable. [less ▲]

Detailed reference viewed: 69 (1 ULg)
Full Text
See detailCompte rendu de l'ouvrage de S. Dawans : Le spectre de la honte
Cormann, Grégory ULg

in Archives de Philosophie (2003), 66(2), 340-342

Detailed reference viewed: 49 (1 ULg)
Full Text
Peer Reviewed
See detailThéorie générale des obligations et sous-traitance
Kohl, Benoît ULg

in La sous-traitance (2003)

Detailed reference viewed: 354 (18 ULg)
Full Text
Peer Reviewed
See detailEvaluation of false transrectal ultrasonographic pregnancy diagnoses in sheep by measuring the plasma level of pregnancy-associated glycoproteins
Karen, A.; Beckers, Jean-François ULg; Sulon, Joseph ULg et al

in Reproduction Nutrition Development (2003), 43(6, NOV-DEC), 577-586

The present study was undertaken to investigate to what extent pregnancy diagnoses made by transrectal ultrasonography could be confirmed by measurements of plasma concentration of ovine pregnancy ... [more ▼]

The present study was undertaken to investigate to what extent pregnancy diagnoses made by transrectal ultrasonography could be confirmed by measurements of plasma concentration of ovine pregnancy-associated glycoproteins (ovPAG). A total of 424 Awassi x Merino ewes were synchronized for estrus and examined by transrectal ultrasonography. In Experiment 1, the ewes (n = 156) were repeatedly scanned in a standing position on d 29, 36 and 50 of gestation. Similarly, the ewes (n = 268) in Experiment 2 were scanned on d 24, 29 and 34 of gestation, but these ewes were fasted for 12 h prior to the examination and the abdominal wall of each animal was lifted up by the hands of the assistant during the scanning. Blood samples were withdrawn after each transrectal ultrasonographic examination in both experiments. Ovine PAG concentrations were measured in plasma by a heterologous radioimmunoassay and the cut-off value for pregnancy was greater than or equal to 1 ng.mL(-1). Based on the lambing performance, in Experiment 1, altogether 47 false negative and 38 false positive diagnoses were made by transrectal ultrasonography in 24 and 33 ewes, respectively between d 29 and 50 of gestation. In Experiment 2, altogether 8 false negative and 13 false positive diagnoses both were made in 7 ewes between d 24 and 34 of gestation. In both experiments, all ewes with false negative diagnoses had ovPAG concentrations higher than the threshold level for pregnancy diagnosis and all ewes with false positive diagnoses had ovPAG concentrations lower than the threshold of pregnancy. Furthermore, by the PAG-RIA test all lambed or aborted ewes (n = 63) were correctly diagnosed as pregnant and with three exceptions, all non-lambed ewes (n = 361) were correctly diagnosed as non-pregnant during the examined periods of both experiments. [less ▲]

Detailed reference viewed: 105 (0 ULg)
Full Text
Peer Reviewed
See detailEstado, mercado y diversidad cultural
Martiniello, Marco ULg

in Revista de Occidente (Madrid, Spain : 1923) (2003), 268

Detailed reference viewed: 43 (1 ULg)
See detailMolecular basis of the cold adaptation of enzymes
D'Amico, Salvino ULg

Scientific conference (2003)

Detailed reference viewed: 2 (0 ULg)
Full Text
See detailRhinotrachéite infectieuse bovine
Thiry, Etienne ULg; Schynts, Frédéric; Gogev, Sacha et al

in Lefèvre, P. C.; Blancou, Jean; Chermette, R. (Eds.) Principales maladies infectieuses et parasitaires du bétail, Europe et régions chaudes, généralités, maladies virales (2003)

Detailed reference viewed: 34 (0 ULg)
Full Text
Peer Reviewed
See detailQuel est le "noyau dur" de la formation en géographie? Le point de vue d'un géographe climatologue.
Erpicum, Michel ULg

in Géographes Associés (2003), 27

Which geograpry to teach tomorrow at university? The point of view of a geographer working in climatology and topoclimatology.

Detailed reference viewed: 30 (1 ULg)
Full Text
Peer Reviewed
See detailLa sous-traitance: développements récents
Kohl, Benoît ULg

in Vanwijck, Michèle (Ed.) Contrat d'entreprise et droit de la construction (2003)

Detailed reference viewed: 63 (7 ULg)
Full Text
Peer Reviewed
See detailChemistry of silica at different concentrations of non-ionic surfactant solutions: Effect of pH of the synthesis gel on the preparation of mesoporous silicas
Léonard, Alexandre ULg; Blin, J. L.; Jacobs, P. A. et al

in Microporous and Mesoporous Materials (2003), 63(1-3), 59-73

Ordered and disordered mesoporous silicas have been synthesized through an assembly of non-ionic decaoxyethylene cetyl ether [C 16(EO) 10] and a tetramethoxysilane silica source by variation of the pH ... [more ▼]

Ordered and disordered mesoporous silicas have been synthesized through an assembly of non-ionic decaoxyethylene cetyl ether [C 16(EO) 10] and a tetramethoxysilane silica source by variation of the pH value of the synthesis gel. The structure, texture and morphology of the mesoporous silicas, synthesized with concentrated and diluted surfactant solutions, have been discussed from the perspective of silica's chemistry upon a variation of pH values of the synthesis gel (micellar solution). With concentrated surfactant solutions (50 wt%), disordered compounds are obtained in a range of pH from 2.0 to 7.0 (micellar solution). As the pH increases, however, the pore size distributions (PSD) become broader and bimodality appears due to the micelle-templated silica (MTS) mesopores and openings arising from silica dissolution-reprecipitation processes. Also, the MTS pores expand due to a change in conformation of the surfactant hydrophilic head upon pH increase. On the other hand, diluted surfactant solutions (10 wt%) lead to ordered materials in a pH range from 2.0 to 7.0 (synthesis gel). The PSD remain very narrow but interparticular porosity appears and the morphologies undergo deep changes from toroids, gyroids and ropes to aggregates of very small particles with increasing pH. © 2003 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 14 (1 ULg)
Full Text
Peer Reviewed
See detailCamouflage et dislocation : de l’alexandrin au vers libre chez Breton et Cocteau
Purnelle, Gérald ULg

in Revue des Lettres Modernes. Jean Cocteau (2003), 4

Detailed reference viewed: 66 (3 ULg)
Full Text
Peer Reviewed
See detailL’anabaptisme au Pays de Liège (1533-1593)
Donneau, Olivier ULg

in Annuaire d'Histoire Liégeoise (2003), 32

Study of the spread of the anabaptists movements in the ecclesiastical principality of Liège during the 16th Century.

Detailed reference viewed: 153 (19 ULg)
Full Text
Peer Reviewed
See detailLa voie transobturatrice de dedans en dehors: Considérations anatomiques
Bonnet, Pierre ULg; Waltregny, David ULg; de Leval, Jean ULg

in Progrès en Urologie (2003), 13(5)(Suppl.), 22

Detailed reference viewed: 13 (4 ULg)
See detailParticularités des organismes des abysses et des sources hydrothermales.
Dauby, Patrick ULg; Coulon, Pierre

Article for general public (2003)

Detailed reference viewed: 12 (0 ULg)