References of "2003"
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See detailFirst-principles calculation of the band offset at BaO/BaTiO3 and SrO/SrTiO3 interfaces
Junquera, J.; Zimmer, M.; Ordejon, P. et al

in Physical Review. B, Condensed Matter and Materials Physics (2003), 67

We report first-principles density-functional pseudopotential calculations on the atomic structures, electronic properties, and band offsets of BaO/BaTiO3 and SrO/SrTiO3 nanosized heterojunctions grown on ... [more ▼]

We report first-principles density-functional pseudopotential calculations on the atomic structures, electronic properties, and band offsets of BaO/BaTiO3 and SrO/SrTiO3 nanosized heterojunctions grown on top of a silicon substrate. The density of states at the junction does not reveal any electronic induced interface states. A dominant perovskite character is found at the interface layer. The tunability of the band offset with the strain conditions imposed by the substrate is studied. Using previously reported theoretical data available for Si/SrO, Si/BaO, SrTiO3/Pt, and BaTiO3/SrRuO3 interfaces we extrapolate the band alignments along two gate stacks of technological interest: Si/SrO/SrTiO3/Pt and Si/BaO/BaTiO3/SrRuO3 heterostructures. [less ▲]

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See detailFrom the Lyric Subject to the Embouchured Self
Delville, Michel ULg

in Weinstock, Horst (Ed.) Anglistentag Bayreuth (2003)

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See detailWhole-body FDG PET in the follow-up of pediatric patients with lymphoma.
DE BARSY; DEPAS, G.; DRESSE, MF. et al

in Journal of Nuclear Medicine (The) (2003), 44

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See detailA new method for reconstruction of the vertical electron density distribution in the upper ionosphere and plasmasphere
Stankov, Stanimir; Jakowski, Norbert; Muhtarov, Plamen et al

in Journal of Geophysical Research. Space Physics (2003), 108(A51164), 1164

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See detailPreliminary Results from Recent Simultaneous Chandra/HST Observations of Jupiter Auroral Zones
Elsner, R. F.; Gladstone, G. R.; Waite, J. H. et al

Poster (2003)

Jupiter was observed by the Chandra X-ray Observatory in late February, 2003, for 144 ks, using both the ACIS-S and HRC-I imaging x-ray cameras. Five orbits of HST STIS observations of the planet's ... [more ▼]

Jupiter was observed by the Chandra X-ray Observatory in late February, 2003, for 144 ks, using both the ACIS-S and HRC-I imaging x-ray cameras. Five orbits of HST STIS observations of the planet's northern auroral zone were obtained during the ACIS-S observations. These data are providing a wealth of information about Jupiter's auroral activity, including the first x-ray spectra from the x-ray hot spots inside the auroral ovals. We will also discuss time variability in the auroral x-ray emission and a possible phase relation between the emission from the northern and southern x-ray aurora. [less ▲]

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See detailKarsts en roches cristallines silicatées non carbonatées.. Cas dans les métagabbros : grotte de Guessédoundou, Niger occidental
Willems, Luc ULg; Pouclet, André; Vicat, Jean-Paul

in Rodet, Joël (Ed.) Actes des Journées Européennes de l'AFK 2003 (2003)

Since the Seventies, a séries of phenomena developed in non carbonated silicated rocks question the traditional vision of karst. The term of karst is used in the meaning of "any feature of the classical ... [more ▼]

Since the Seventies, a séries of phenomena developed in non carbonated silicated rocks question the traditional vision of karst. The term of karst is used in the meaning of "any feature of the classical karst morphology (caves, sink-holes, lapiaz...) where dissolution plays the main genetic action and this in any kind of rocks". The cave of Guéssédoundou illustrâtes a karst in métagabbros. It opens at the top of a small hill, in a dépression twenty meters long and three to four meters deep. The walls of this dépression are subvertical and the bottom is partially occupied by angular pluridecimetric blocks. The cave is opened on several meters in the southern side of the dépression and is prolonged in the form of too narrow conduits to be explore. The bedrock is a metagabbro with fine grains, slightly weathered, crossed by decimetric quartzose veins. Gabbroïc texture is preserved, as well as part of magmatic plagioclases. The remainder is transformed into a mixture of white feldspar and clinozoisite. Pyroxene are pseudomorphosed in actinote and chlorite. The site dépression was created along a N 10° shear zone where rocks suffered important fracturation and fluid transfers, as shown by its silification and ferruginisation.. Moreover, a East-West schistosity, former to shearing, structures the gabbro. The présence of angular blocks of variable size and the absence of human activity trace on the site show that the dépression was formed naturally by collapse of the roof of a more vast cavity whose current cave would be the visible residual prolongation. The absence of flow traces and mechanical abrasion means that this cavity is due only to chemical érosion . At the cave entry and on the subvertical walls of the dépression were formed by alveoli a few centimètres to a few décimètres in diameter. Thèse alveoli of wall are known in other lithologies, in particular in limestones. The absence of salts within the rock draws aside a formation by sait weathering. The smooth aspect and non fractured walls of the cells cannot resuit from a corrosion to a fracturing node. The closed aspect of the dépression and the absence of flow trace eliminate the assumptions from formation by water swirls or eolisation. The genesis of the cave must be earlier to the installation of a weathering cover since the rock is little deteriorated and the alveoli are not developed on a quite particular level which would correspond to a précise pedogenic horizon. Only a generalized dissolution of the métagabbros, in relation to a slow solution circulation, being carried out with the favour of the fracturing plans of the shearing zone makes it possible to explain the formation of the alveoli. The inversion of relief results from a weaker érosion of the rocks made more résistant to this place by the quartz seam mainstay and by the ferruginisation along the shearing zone. In the other hand, the crushed rocks, become porous, drained the infiltrations of meteoric water, facilitating the dissolution processes. The study of the site of Guéssédoundou shows that karstic phenomena can also exist in silico-aluminous formations of crystalline rocks. [less ▲]

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See detailLe délai de prescription de l'action civile résultant d'une infraction : fin d'une controverse
Monville, Pierre ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2003)

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See detailDavid Malouf
Delrez, Marc ULg

in Schlager, Nigel; Lauer, Josh (Eds.) Contemporary Novelists (2003)

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See detailMarine mammals from Northeast Atlantic: relationship between their trophic status as determined by delta C-13 and delta N-15 measurements and their trace metal concentrations
Das, Krishna ULg; Beans, Cristina; Holsbeek, Ludo et al

in Marine Environmental Research (2003), 56(3),

The relationship between trophic position through delta(13)C and delta(15)N and trace metal concentrations (Zn, Cd, Cu and Hg) was investigated in the tissues of six marine mammal species from the ... [more ▼]

The relationship between trophic position through delta(13)C and delta(15)N and trace metal concentrations (Zn, Cd, Cu and Hg) was investigated in the tissues of six marine mammal species from the Northeast Atlantic: striped dolphin Stenella coeruleoalba, common dolphin, Delphinus delphis. Atlantic white-sided dolphin Lagenorhynchus acutus, harbour porpoise Phocoena phocoena, white beaked-dolphin Lagenorhynchus albirostris, grey seal Halichoerus grypus stranded on French Channel and Irish coasts. White-beaked dolphins, harbour porpoises, white-sided dolphins, common and striped dolphins display the same relative and decreasing trophic position, as measured by delta(15)N values, along both the Irish and French channel coasts, reflecting conservative trophic habits between these two places. Hepatic and renal Cd concentrations were significantly correlated to muscle delta(13)C and delta(15)N values while Hg, Zn and Cu did not. These results suggest that Cd accumulation is partly linked to the diet while other factors Such as age or body condition might explain Hg, Zn or Cu variability in marine mammals. Combined stable isotope and trace metal analyses appear to be useful tools for the study of marine mammal ecology. (C) 2003 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailSynthèse des débats
Marcoen, Jean Marie ULg; Istasse, Ch.

in Actes du Colloque : Le droit international dans le domaine de l'environnement. (2003)

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See detailEffect of hemicellulase preparations on performance parameters, intestinal viscosity and apparent nutrient digestibility of male broilers fed a wheat-based diet
Vandeplas, Sabrina ULg; Beckers, Yves ULg; Thewis, André ULg

Poster (2003)

Three experiments were conducted to investigate the mode of action of 5 hemicellulases supplemented to wheat-based broiler diets. Performances parameters and digesta viscosity were measured during growth ... [more ▼]

Three experiments were conducted to investigate the mode of action of 5 hemicellulases supplemented to wheat-based broiler diets. Performances parameters and digesta viscosity were measured during growth period. Total collection of excreta was carried out for determination of AMEn content of the diets and of apparent crude fat, Kjeldahl-nitrogen and crude cellulose digestibilities. Addition of xylanase improve daily body gain by 1 to 6% and feed conversion ration by 1,5 to 4%, as the apparent nutrient digestibility and the content of AMEn in the diets supplemented with enzymes. Although viscosity values seemed not correled to improved performances, Grindazym G shows an increase in the digesta viscosity for all the period of measurement. It can be concluded that the beneficial action of xylanases is more due to the improved release of the nutrients entrapped by the NSP, following degradation of these structures, than to the generally accepted decrease in digesta viscosity. [less ▲]

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See detailIntramyocardial synthesis of pro- and anti-inflammatory cytokines in infants with congenital cardiac defects.
Qing, Ma; Schumacher, Kathrin; Heise, Ruth et al

in Journal of the American College of Cardiology (2003), 41(12), 2266-74

OBJECTIVES: We sought to test the hypothesis that cytokines would be expressed in the myocardium of infants with congenital cardiac defects and to identify the signaling pathways involved. BACKGROUND ... [more ▼]

OBJECTIVES: We sought to test the hypothesis that cytokines would be expressed in the myocardium of infants with congenital cardiac defects and to identify the signaling pathways involved. BACKGROUND: Mechanical stress upregulates pro-inflammatory cytokines in the myocardium. METHODS: Fifteen infants with tetralogy of Fallot (TOF) (n = 7) or with ventricular septal defects (VSDs) (n = 8) were investigated. Concentrations of pro- and anti-inflammatory cytokines and of the inducible nitric oxide synthase (iNOS) were measured by enzyme-linked immunosorbent assay and/or Western blotting in the right ventricular myocardium taken during cardiac surgery. Activation of the nuclear factor-kappa-B (NF-kappa-B) and p38 mitogen-activated protein kinase (MAPK) pathways was assessed by electrophoretic mobility shift assay with supershift and/or Western blotting, respectively. RESULTS: The pro-inflammatory cytokines tumor necrosis factor (TNF)-alpha, interleukin (IL)-1-beta, and IL-6 and the anti-inflammatory cytokine IL-10 were detected in the myocardium of all patients. Concentrations of the pro-inflammatory cytokines and also of phosphorylated p38 MAPK were higher in patients with TOF than in those with VSD and correlated with the degree of pressure overload of the right ventricle. Levels of phosphorylated I-kappa-B-alpha, iNOS, and IL-10 were similar in patients with TOF and in those with VSD. CONCLUSIONS: Our results show intramyocardial synthesis of pro-inflammatory cytokines in infants with congenital cardiac defects. This is associated with activation of both the NF-kappa-B and p38 MAPK pathways. The latter could be particularly important for the transduction of mechanical signals in the infant's myocardium. Synthesis of IL-10 indicates an intramyocardial anti-inflammatory potential in this age group. [less ▲]

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See detailLes effets de la formation professionnelle continue : une enquête auprès des bénéficiaires des actions du Fonds social européen en Wallonie et à Bruxelles
Conter, Bernard; Maroy, Christian; Orianne, Jean-François ULg

in Politiques d'Education et de Formation : Analyses et Comparaisons Internationales (2003), 7

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See detailEssais de purification de l'insulin-like growth factor binding protein-3 (IGFBP-3) bovine
Colinet, Frédéric ULg

Master of advanced studies dissertation (2003)

Animal productions are the results of interactions between the genetic potential of the animal, environmental factors and nutrient supplies. These interactions modulate the endocrine system, especially ... [more ▼]

Animal productions are the results of interactions between the genetic potential of the animal, environmental factors and nutrient supplies. These interactions modulate the endocrine system, especially the somatotrope axis. IGFBP-3 is the major carrier of the IGFs (the main growth-promoting peptide) in plasma circulating as part of a 150 kDa ternary complex with one IGF peptide and a single acid-labile subunit. The IGFBP-3 purification would allow the measure of the changes in plasma IGFBP-3 throughout the day and the development and in various physiological situations. We try to purify the bovine IGFBP-3. Firstly, we load 0,5 ml of serum onto an Hiload 16/6 Superdex 200 prep grade column, then onto an ion exchange column and finally onto an IGF-I affinity column. The purification fails perhaps because the sample is to small. Secondly, 5 ml of serum is fractionated by 3 gel filtrations. Between the first and the second filtration, the fractions containing IGF-I binding activity are pooled and concentrated. Before the third gel filtration, the fractions containing this activity are pooled anew, acidified with HCl and incubated at 4 °C for 2 hours. The third gel filtration fractions are pooled and subjected to an heparin-affinity chromatography. The elution pic shows only IGFBP-3 activity. In conclusion, our purified product contains other proteins. But the ternary complex is dissociated, so an IGF-I affinity chromatography would purify the IGFBP-3 from the elution pic of the heparin-affinity column. [less ▲]

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See detailSHIP2 et signalisation de l'insuline: quel role dans la pathogenese et le traitement du diabete de type 2?
Schurmans, Stéphane ULg

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (2003), 158(7-9), 335-9

Based on the analysis of SHIP2+/- and SHIP2-/- mice showing that the lipid phophatase SHIP2 is an important negative regulator of the insulin pathway, we have suggested that the enzyme is a candidate gene ... [more ▼]

Based on the analysis of SHIP2+/- and SHIP2-/- mice showing that the lipid phophatase SHIP2 is an important negative regulator of the insulin pathway, we have suggested that the enzyme is a candidate gene for genetic predisposition to type 2 diabetes, and a potential therapeutic target for the same disease. Two years after, we propose to review these hypothesis in light of recent results from our laboratory, from international collaborations and from competitors in the field. [less ▲]

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See detailSynthesis of a simplified bryostatin C-ring analogue that binds to the CRD2 of human PKC-alpha and construction of a novel BC-analogue by an unusual Julia olefination process
Hale, K. J.; Frigerio, M.; Manaviazar, S. et al

in Organic Letters (2003), 5(4), 499-502

[GRAPHICS] The synthesis of two truncated bryostatin analogues 2 and 3 is described. High-field NMR measurements on the C-ring analogue 3 in (CH3CN)-H-2 containing 25% (H2O)-H-2 have shown that it binds ... [more ▼]

[GRAPHICS] The synthesis of two truncated bryostatin analogues 2 and 3 is described. High-field NMR measurements on the C-ring analogue 3 in (CH3CN)-H-2 containing 25% (H2O)-H-2 have shown that it binds to the CRD2 of human PKC-alpha at virtually the same position as phorbol-13-acetate (PA) and bryostatin 1 (1). NMR titration studies have also revealed that 3 binds to the CRD2 with a potency similar in magnitude to PA but much less potently than 1. [less ▲]

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See detailChance in biology – Using probability to explore nature (M. Denny, S. Gaines).
Bogaert, Jan ULg

in Acta Biotheoretica (2003), 51(1), 55-57

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See detailNon-adiabatic effects in photodissociation of bromoacetyl chloride
Bacchus-Montabonel, Marie-Christine; Vaeck, Nathalie; Lasorne, Benjamin et al

in Chemical Physics Letters (2003), 374

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