References of "2003"
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See detail3D nonrigid registration and multimodality fusion for image-guided neurosurgery
Verly, Jacques ULg; Vigneron, Lara M.; Martin, Christophe et al

Conference (2003)

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See detailCandidate VLTI Configurations for the GENIE Nulling Experiment
Absil, Olivier ULg; Gondoin, P.; Erd, C. et al

in Deming, Drake; Seager, Sara (Eds.) Scientific Frontiers in Research on Extrasolar Planets (2003)

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will ... [more ▼]

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will use the Very Large Telescope Interferometer (VLTI) operating on Mount Paranal (Chile). The objective of GENIE is to gain experience in the manufacture and operation of a nulling interferometer using a design concept and technology representative of the ESA IRSI-Darwin space mission. GENIE will prepare the IRSI-Darwin science program through a systematic search for exozodiacal dust clouds around IRSI-Darwin candidate targets. GENIE also aims to perform IRSI-Darwin related science achievable from ground including the detection of low-mass companions (if possible, hot jupiters) around nearby stars. Among the variety of telescope sizes and positions on the VLTI site, candidate interferometric configurations have been identified for GENIE, taking into account the limitation imposed by the Earth's atmosphere. They include a Bracewell interferometer for exozodiacal clouds detection in the N band and a double Bracewell configuration with internal modulation for extrasolar jupiter detection in the L' band. The present paper presents the prospective performance of these configurations in light of current specifications of major VLTI subsystems. [less ▲]

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See detailMarine mammals from the southern North Sea: feeding ecology data from delta C-13 and delta N-15 measurements
Das, Krishna ULg; Lepoint, Gilles ULg; Leroy, Yann et al

in Marine Ecology. Progress Series (2003), 263

The harbour porpoise Phocoena phocoena, grey seal Halichoerus grypus, harbour seal Phoca vitulina and white-beaked dolphin Lagenorhynchus albirostris are regularly found stranded along southern North Sea ... [more ▼]

The harbour porpoise Phocoena phocoena, grey seal Halichoerus grypus, harbour seal Phoca vitulina and white-beaked dolphin Lagenorhynchus albirostris are regularly found stranded along southern North Sea coasts. Occasionally, offshore species such as the fin whale Balaenoptera physalus, the white-sided dolphin L. acutus and the sperm whale Physeter macrocephalus are also found stranded. In order to trace their diet, we measured delta(13)C and delta(15)N in their muscles as well as in 49 invertebrate and fish species collected from the southern North Sea. The delta(15)N data indicate that the harbour seal, grey seal and white-beaked dolphin occupy the highest trophic position, along with ichtyophageous fishes such as the cod Gadus morhua (mean muscle values of 18.7, 17.9, 18.8 and 19.2parts per thousand respectively). The harbour porpoise occupies a slightly lower trophic position (mean delta(15)N value of 16.2parts per thousand), reflecting a higher amount of zooplanktivorous fishes in its diet (mean delta(15)N of 14.7parts per thousand); 2 suckling harbour porpoises displayed a significant delta(15)N enrichment of 2.2parts per thousand compared to adult females. Adult females are delta(15)N-enriched compared to adult male harbour porpoises. Fin whales, sperm whales and white-sided dolphins are C-13-depleted compared to southern North Sea particulate organic matter and species, suggesting that despite regular sightings, they do not feed within the southern North Sea area. [less ▲]

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See detailEffects of a dust storm on the coupled Mars thermosphere ionosphere
Witasse, Olivier; Bougher, S. W.; Cerisier, Jean-Claude et al

Conference (2003)

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See detailMécanique Rationnelle - Théorie et Applications
Delhez, Eric ULg

Book published by Etienne Riga (2003)

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See detailSynthèse de ligands ditopiques en tant qu’agents de contraste pour l’imagerie de résonance magnétique.
Thonon, David ULg; Paris, Jérôme; Humblet, Jacques et al

Poster (2003)

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See detailLes engagements des catholiques pour la paix
Jadoulle, Jean-Louis ULg

in J. PIROTTE et G. ZELIS (Ed.) Pour une histoire du monde catholique au 20e siècle. Wallonie - Bruxelles. Guide du chercheur (2003)

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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 detailLe pas du temps. Ou l’incorporation du social
Durand, Pascal ULg

in Dumortier, Jean-Louis (Ed.) Le Roman de Simenon. Pedigree : entre réalité et fiction (2003)

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See detailDiagnostic et suivi de la gravidité chez le zébu par échographie
Pitala, W.; Boly, H.; Zongo, M. et al

in Revue d'Elévage et de Médecine Vétérinaire des Pays Tropicaux (2003), 56(3-4), 171-176

Des diagnostics de gravidité ont été réalisés chez 64 femelles zébus de races Peuhl et Goudali (Bos indicus) aux 28è et 40è jours postinsémination à l'aide d'un échographe muni d'une sonde linéaire de 6 ... [more ▼]

Des diagnostics de gravidité ont été réalisés chez 64 femelles zébus de races Peuhl et Goudali (Bos indicus) aux 28è et 40è jours postinsémination à l'aide d'un échographe muni d'une sonde linéaire de 6 MHz. Au 28è jour, l'exactitude globale a été de 92,2 p. 100, avec une exactitude de 92,6 p. 100 et 91,9 p. 100 respectivement pour les diagnostics positif et négatif. Au 40è jour, l'exactitude globale a été de 98,4 p. 100, avec une exactitude de 100 p. 100 et 97,3 p. 100 respectivement pour les diagnostics positif et négatif. Les fiabilités ont varié de 89,2 p. 100 (fiabilité du diagnostic de gravidité positif au 28è jour) à 100 p. 100 (fiabilité du diagnostic de gravidité négatif au 40è jour). Par ailleurs, la croissance foetale a été suivie chez 16 femelles gravides du 45è au 120è jour postinsémination. Les principales mensurations foetales réalisées ont été les diamètres du crâne et du tronc. Au 45è jour de la gravidité, les diamètres du crâne et du tronc ont été respectivement de 1,8 ± 0,1 cm et 1,4 ± 0,3 cm. Au 120è jour, ces valeurs ont été de 6,5 ± 0,6 cm et 5,8 ± 0,5 cm. A partir du 120è jour, l'utérus a pris une position très profonde, ne permettant plus la visualisation du foetus en croissance. [less ▲]

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See detailImiquimod-responsive basal cell carcinomas and factor XIIIa-enriched dendrocytes.
Quatresooz, Pascale ULg; Pierard, Gérald ULg

in Clinical & Experimental Dermatology (2003), 28 Suppl 1

Dermal dendrocytes (DDs) are dendritic cells that exhibit immunoreactivity for factor XIIIa, and are frequently found in conjunction with basal cell carcinomas (BCCs). Imiquimod was applied to 12 ... [more ▼]

Dermal dendrocytes (DDs) are dendritic cells that exhibit immunoreactivity for factor XIIIa, and are frequently found in conjunction with basal cell carcinomas (BCCs). Imiquimod was applied to 12 superficial BCCs every 3 days for 8 weeks. One week after completion of treatment, seven lesions appeared to have resolved, while five displayed evidence of residual BCC. Prior to initiation of treatment, the seven imiquimod-responsive BCCs were surrounded by numerous DDs, whereas the five imiquimod-resistant BCCs had fewer DDs next to them at the time of entry into the study. It appears that the pretreatment density in DDs may affect the efficacy of imiquimod in eradicating skin tumours. [less ▲]

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See detailL'histoire des religions et les représentations du temps. En guise de préambule
Pirenne-Delforge, Vinciane ULg

in Pirenne-Delforge, Vinciane; Tunca, Önhan (Eds.) Représentations du temps dans les religions. Actes du Colloque organisé par le Centre d'histoire des religions de l'Université de Liège (2003)

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See detailDu Séminaire de Géographie au Département de Géographie, Cent ans de géographie à l’Université de Liège, 1903-2003
Merenne-Schoumaker, Bernadette ULg

in Bulletin de la Société Géographique de Liège (2003), (43), 3-17

100-year history of teaching and research in geography at the University of Liege

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See detailMultiscale texture characterization of wastewater sludges dried in a convective rig
Léonard, Angélique ULg; Blacher, Silvia ULg; Pirard, René ULg et al

in Drying Technology (2003), 21(8), 1507-1526

Secondary sludges from two different wastewater treatment plants are conditioned and dewatered in the same way before drying in a lab-scale convective rig at the same operating conditions. Several ... [more ▼]

Secondary sludges from two different wastewater treatment plants are conditioned and dewatered in the same way before drying in a lab-scale convective rig at the same operating conditions. Several techniques are used to characterize the texture of the dried materials over a wide range of scales from nm up to mm. Texture and porosity of the dried products are studied by SEM imaging, nitrogen absorption isotherms (0.5 < d(p) < 50 nm), mercury porosimetry (7.5 nm < d(p) < 150 mum) and X-ray microtomography (spatial resolution= 41 mum). The image analysis of cross-sections reconstructed by microtomography also allows following shrinkage and textural evolution during drying. [less ▲]

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See detailChorionic expression of heterogeneous products of the PAG (Pregnancy-Associated Glycoprotein) gene family secreted in vitro throughout embryonic and foetal development in the pig
Szafranska, B.; Panasiewicz, G.; Majewska, M. et al

in Reproduction Nutrition Development (2003), 43(6), 497-516

Porcine PAG (pPAG) are placental products of a multigene family that is strongly expressed in the chorionic epithelium (trophoblast and trophectoderm). The objective of this study was to define a pattern ... [more ▼]

Porcine PAG (pPAG) are placental products of a multigene family that is strongly expressed in the chorionic epithelium (trophoblast and trophectoderm). The objective of this study was to define a pattern of the pPAG proteins, secreted in vitro by chorionic explants harvested on 16-77 days of pregnancy. Trophoblastic and trophectodermal explants were collected from pregnant (PR) gilts (n = 27) and used for protein in vitro production (8-261 h). Endometrial explants of luteal-phase gilts (E10, n = 4) and pseudopregnant gilts (PsE, n = 2) were used as negative controls for protein immunoblotting. Proteins (PR, E10, PsE) were isolated mainly from incubation media, fractionated, dialysed and separated by SDS-PAGE. Heterogeneous Western blotting with various polyclonal anti-PAG sera raised against bovine or ovine antigens (anti-bPAG, or anti-oPAG) initially identified the pPAG proteins. Such blotting of fractionated chorionic proteins allowed for the isolation of porcine antigens that were employed as immunogens to raise several homologous antisera (anti-pPAG). Crude antisera were adsorbed on endometrial extracts or proteins of non-PR pigs, to remove non-relevant antibodies. The patterns of pPAG proteins secreted in Vitro varied throughout pregnancy (35-72 kDa). During implantation, similar to43 kDa (Day 16) or similar to68.1 kDa (Days 17-25) pPAG proteins were detected. During placentation and as pregnancy advanced (Days 31-77), similar to72.3 kDa pPAG proteins were observed. The secretions of parallel multiple smaller proteins (35.4-47.2 kDa), presumably, as forms of processed pPAG precursors, increased with the progress of gestation. In conclusion, the pPAG protein family plays a very important role during implantation, placenta formation and embryonic/foetal development in the pig. [less ▲]

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See detailGeneration of spatially correlated wind histories
Denoël, Vincent ULg

in Proceedings of the first Internation Conference on Finite Element Methods (2003)

Turbulent wind is a natural and therefore random phenomenon. The analysis of flexible structures subjected to turbulent wind requires, in a finite element approach, the resolution of a system of ... [more ▼]

Turbulent wind is a natural and therefore random phenomenon. The analysis of flexible structures subjected to turbulent wind requires, in a finite element approach, the resolution of a system of stochastic differential equations. It is supposed that the characteristics of the structure are perfectly known; thus the stochastic aspect of the problem comes from the random loading only. As the turbulent wind is most commonly characterized by its frequency content, the resolution of this equation is generally performed in the frequency domain. All governing equations must therefore be linear. If this can be reasonably supposed for the structure, this hypothesis is not mathematically justified for the wind loading. When the non linear behaviour of any part of the structure has to be accounted for, the resolution in the frequency domain is not valid anymore. It is then necessary to compute, with a step-by-step dynamic analysis, the response of the structure to a series of generated wind histories. In a finite element approach, this is for example achieved thanks to Newmark’s or Wilson’s methods. Averaging across the ensemble of the computed time-varying responses allows then to recover statistical results that a stochastic analysis would provide. This analysis method is known as a stochastic Monte Carlo simulation. After having emphasised the need to represent correctly the coherence between wind pressures at different points of the structure, this paper will present a method for generating a set of correlated wind histories that must be used in a finite element analysis. Finally an example of application of the presented method will prove its efficiency. [less ▲]

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See detailEarly detection of relapse by whole-body positron emission tomography in the follow-up of patients with Hodgkin's disease.
Jerusalem, Guy ULg; Beguin, Yves ULg; Fassotte, Marie-France ULg et al

in Annals of Oncology (2003), 14(1), 123-30

BACKGROUND: Relapse after treatment of Hodgkin's disease (HD) is usually identified as a result of the investigation of symptoms. We undertook this study to examine the value of whole-body positron ... [more ▼]

BACKGROUND: Relapse after treatment of Hodgkin's disease (HD) is usually identified as a result of the investigation of symptoms. We undertook this study to examine the value of whole-body positron emission tomography (PET) for the detection of preclinical relapse. PATIENTS AND METHODS: Thirty-six patients underwent 2-[fluorine-18]fluoro-2-deoxy-D-glucose ((18)F-FDG) PET at the end of treatment and than every 4-6 months for 2-3 years after the end of polychemotherapy and/or radiotherapy. In those cases of abnormal (18)F-FDG accumulation a confirmatory study was performed 4-6 weeks later. RESULTS: One patient had residual tumor and four patients relapsed during a follow-up of 5-24 months. All five events were correctly identified early by (18)F-FDG PET. Residual tumor or relapse was never first diagnosed based on clinical examination, laboratory findings or computed tomography (CT) studies. Two patients presented B symptoms and the three others were asymptomatic at the time of residual disease or relapse. Confirmation of residual disease or relapse was obtained by biopsy in four patients 1, 1, 5 and 9 months after PET and by unequivocal clinical symptoms and CT studies in one patient 3 months after PET. False-positive (18)F-FDG PET studies incorrectly suggested possible relapse in six other patients, but the confirmatory PET was always negative. Our study also provides important information about physiological (18)F-FDG uptake in the thymus. CONCLUSIONS: Our data suggest the potential of (18)F-FDG PET to detect preclinical relapse in patients with HD. This could help identify patients requiring salvage chemotherapy at the time of minimal disease rather than at the time of clinically overt relapse. Further studies are warranted to determine the impact of PET on treatment management and outcome. In fact, the aim of follow-up procedures is not only to detect preclinical relapse but mainly to obtain better results by starting salvage treatment earlier. A cost-benefit analysis will also be necessary before (18)F-FDG PET can be used routinely in the follow-up of patients with HD. [less ▲]

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