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 detailExperimental comparison of cavity sealing ability of five dental adhesive systems after thermocycling
Cao, L.; Geerts, Sabine ULg; Gueders, Audrey ULg et al

in Journal of Adhesive Dentistry (2003), 5(2, Summer), 139-144

Purpose: To evaluate the cavity sealing obtained after thermocycling with five adhesive systems in which one all-in-one adhesive was compared to three one-bottle adhesives, and to observe the effect of a ... [more ▼]

Purpose: To evaluate the cavity sealing obtained after thermocycling with five adhesive systems in which one all-in-one adhesive was compared to three one-bottle adhesives, and to observe the effect of a low-charged resin layer added to a one-bottle adhesive. Materials and Methods: Twenty-five recently extracted teeth were randomly allocated to five experimental adhesive systems (n = 5 each): Optibond Solo (OS), Scotchbond 1 (SB1), PQ 1, Prompt-L-Pop (PLP), SB1+Revolution (R). On each tooth, two rectangular cavities at the cementoenamel junction were filled with a microhybrid composite (Z100) and the tested adhesives. Teeth were thermocycled and stained with AgNO3 + vitamin C. Leakage was evaluated on a 6-point (0-5) severity scale and the highest score was selected for each restoration. Results were treated by ordinal logistic regression and considered to be significant at p < 0.05. Results: No significant difference was found between leakage values for enamel and dentin interfaces. Leakage scores never exceeded 2 for OS, SB1 and SB1+R, while they reached a maximum of 5 in 20% of PLP cases. OS was significantly better than the other adhesive systems, which were statistically equivalent. The addition of a flowable composite layer on SB1 did not yield a significant difference, but tended to give better results mainly at the dentin interface. Conclusion: The all-in-one adhesive PLP because of quite variable results, seems less reliable than the one-bottle adhesives, of which OS provides significantly the best results. Addition of a flowable composite on SB1 appears to yield slightly better results. [less ▲]

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See detailProjet FIRST Europe Ojectif 1 (OLIPOL-Synthèse de nouveaux (co)-polymères d'origine végétale par voie catalytique) Rapport III
Richel, Aurore ULg

Report (2003)

Le principal objectif visé par le présent travail est de mettre au point des catayseurs efficaces, capables de polymériser par voir radicalaire contrôlée des oléfines internes (peu réactionnelles) et ... [more ▼]

Le principal objectif visé par le présent travail est de mettre au point des catayseurs efficaces, capables de polymériser par voir radicalaire contrôlée des oléfines internes (peu réactionnelles) et, plus particulièrement, l'huile de lin.Nous tenterons aussi d'aborder la copolymérisation de l'huile de lin avec des monomères de grande consommation (styrène et (méth)acrylates) afin de mettre au point, au départ d'un produit naturel et renouvelable, des matériaux nouveaux. L'huile de lin est constituée d'un mélange complexe de triglycérides dont les chaînes pendantes sont porteuses de 2 ou 3 liaisons C=C doubles. Face à la diversité et à la complexité structurale de ces molécules, il nous parait évident d'aborder le problème de manière plus systématique en nous basant sur l'étude de la polymérisation d'oléfines internes et/ou fonctionnalisées qui serviront de "modèles" pour celles rencontrées dans l'huile de lin. Nous sommes en effet convaincus que la réussite de ce projet passe avant tout par une bonne compréhension des facteurs qui gouvernent la réactivité des oléfines internes et fonctionnalisées. Ce projet est réalisé dans le Laboratoire de Chimie Macromoléculaire et de Catalyse Organique (CERM) de l'Université de Liège en partenariat avec l'Institut des Sciences de Matériaux (ICMAB, Barcelone) et la Société Vandeputte (Belgique [less ▲]

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See detailLes engagements en dehors du parti catholique et du Parti social chrétien
Jadoulle, Jean-Louis ULg; Wynants, Paul

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 detailCantari novellistici dal Tre al Cinquecento
Moreno, Paola ULg

in Moyen Age (Le) (2003)

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See detailThe extraforaminal juxtafacet cyst as a rare cause of L5 radiculopathy: a case report.
Salmon, Bernard L; Deprez, Manuel ULg; Stevenaert, Achille ULg et al

in Spine (2003), 28(19), 405-7

STUDY DESIGN: This is a report of a case. OBJECTIVE: To document the clinical, radiographic, and histologic characteristics of a lumbar extraforaminal juxtafacet cyst. SUMMARY OF BACKGROUND DATA: Spinal ... [more ▼]

STUDY DESIGN: This is a report of a case. OBJECTIVE: To document the clinical, radiographic, and histologic characteristics of a lumbar extraforaminal juxtafacet cyst. SUMMARY OF BACKGROUND DATA: Spinal juxtafacet cysts develop most frequently at the dorsal aspect of the zygapophysial joint, sometimes in the posterolateral area of the canal. In one case, they have been described in the foraminal and extraforaminal region. METHODS: Description of the case report. RESULT: The authors report one case of a strictly extraforaminal juxtafacet cyst responsible for L5 sciatica. CONCLUSIONS: Juxtafacet cysts of the spine represent an infrequent cause of sciatica, usually when they grow in the canal, or more exceptionally when they occupy the foraminal or extraforaminal areas. [less ▲]

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See detailPhotoabsorption Spectroscopy at medium Resolution. The C2HXYZ (XYZ= H, F, Cl and/or Br) Molecules.
Locht, Robert ULg; Leyh, Bernard ULg; Jochims, H.-W. et al

Book published by Berliner Elektronen Speicherring für Synchrotron Strahlung m.b.H - on CD-ROM (2003)

The V-UV photoabsorption spectra of 1,1-C2H2F2, C2HBrF2 and C2HClF2 have been recorded by using synchrotron radiation and are reported.

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See detailA Model Based Study of Carbon Fluxes at Ten European Forest Sites
Falge, E.; Tenhunen, J.; Aubinet, Marc ULg et al

in Valentini, Riccardo (Ed.) Fluxes of Carbon, Water and Energy of European Forests (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 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 detailNon destructive analysis of a 16th manuscript from the Gospel Book of Robert Quercentius
Denoël, Sophie; Weber, Georges ULg; Allart, Dominique ULg et al

in Townsend, Joyce; Eremin, Katherine; Adriaens, Annemie (Eds.) Conservation Science 2002. Papers from the Conference held in Edinburgh, Scotland 22-24 May 2002 (2003)

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See detailLe retrait impossible
Vrancken, Didier ULg

in CAVALLI, Stefano; FRAGNIERE, Jean-Pierre (Eds.) L’avenir. Attentes projets, (dés)illusions, ouvertures. Hommages à Christian Lalive d’Epinay (2003)

Dans une société d'activation, quelle place le retrait, si souvent analysé dans de nombreuses études sociologiques, peut-il encore prendre aujourd'hui ? Telle est la question soulevée dans ce chapitre ... [more ▼]

Dans une société d'activation, quelle place le retrait, si souvent analysé dans de nombreuses études sociologiques, peut-il encore prendre aujourd'hui ? Telle est la question soulevée dans ce chapitre répondant aux interpellations lancées par Christian Lalive d'Epinay. [less ▲]

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See detailRooting blockage in the tobacco rac mutant occurs at the initiation phase, and induces diversion to xylem differentiation
Faivre-Rampant, Odile; D'Angeli, S.; Falasca, G. et al

in Plant Biosystems (2003), 137(2), 163-174

The rac mutant of Nicotiana tabacum L. cv. Xanthii is impaired in adventitious root formation. The objective of the present study was to determine whether or not the root induction phase occurs in the rac ... [more ▼]

The rac mutant of Nicotiana tabacum L. cv. Xanthii is impaired in adventitious root formation. The objective of the present study was to determine whether or not the root induction phase occurs in the rac mutant, and if so, to determine what causes the induced cells to become incapable of organising root primordia. To this end, rac and wild-type shoots were cultured in vitro for 7 days under conditions suitable for obtaining roots in the wild-type (i.e., exposure to 5 muM indole-3-butyric acid for 4 h, and then transfer to hormone-free medium), and then histologically and biochemically analysed during culture. The variations in peroxidase activity, and in cellular levels of auxins and polyamines revealed that the induction phase occurs in rac shoots, although it lasts longer than in the wild-type ones. Furthermore, both auxin and polyamines were consistently higher in rac shoots compared to the wild-type. After induction, auxin and putrescine levels abruptly decreased in the wild-type shoots, whereas they decreased much more slowly in the rac mutant. The histological analysis of the wild-type shoots showed that the abrupt decrease in auxin and polyamine levels were correlated with a normal initiation phase. In fact, wild-type shoots showed cell divisions in the procambium already at day 2, resulting in the formation of root primordia at day 4, and in root emergence between days 5 and 7. In rac shoots, despite the fact that the procambium cells were activated to undergo cell division, the initiation phase was highly perturbed, and the procambial cells developed tracheary elements instead of adventitious roots. The different morphogenic responses of the two genotypes are discussed in the light of the differences in auxin content after the induction phase. [less ▲]

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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

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See detailNitric oxide and cardiac function: ten years after, and continuing.
MASSION, Paul ULg; Feron, O.; Dessy, C. et al

in Circulation Research (2003), 93(5), 388-98

Nitric oxide (NO) is produced from virtually all cell types composing the myocardium and regulates cardiac function through both vascular-dependent and -independent effects. The former include regulation ... [more ▼]

Nitric oxide (NO) is produced from virtually all cell types composing the myocardium and regulates cardiac function through both vascular-dependent and -independent effects. The former include regulation of coronary vessel tone, thrombogenicity, and proliferative and inflammatory properties as well as cellular cross-talk supporting angiogenesis. The latter comprise the direct effects of NO on several aspects of cardiomyocyte contractility, from the fine regulation of excitation-contraction coupling to modulation of (presynaptic and postsynaptic) autonomic signaling and mitochondrial respiration. This multifaceted involvement of NO in cardiac physiology is supported by a tight molecular regulation of the three NO synthases, from cellular spatial confinement to posttranslational allosteric modulation by specific interacting proteins, acting in concert to restrict the influence of NO to a particular intracellular target in a stimulus-specific manner. Loss of this specificity, such as produced on excessive NO delivery from inflammatory cells (or cytokine-stimulated cardiomyocytes themselves), may result in profound cellular disturbances leading to heart failure. Future therapeutic manipulations of cardiac NO synthesis will necessarily draw on additional characterization of the cellular and molecular determinants for the net effect of this versatile radical on the cardiomyocyte biology. [less ▲]

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See detailp-mode Oscillations of alpha Cen A
Thoul, Anne ULg; Scuflaire, Richard ULg; Vatovez, B. et al

in Astrophysics & Space Science (2003), 284

Models of alpha Cen A & B have been computed using the masses determined by Pourbaix et al. (2002) and the data derived from the spectroscopic analysis of Neuforge and Magain (1997). The seismological ... [more ▼]

Models of alpha Cen A & B have been computed using the masses determined by Pourbaix et al. (2002) and the data derived from the spectroscopic analysis of Neuforge and Magain (1997). The seismological data obtained by Bouchy and Carrier (2001, 2002) do help improve our knowledge of the evolutionary status of the system. All the constraints are satisfied with a model which gives an age of about 6 Gyr for the binary. [less ▲]

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See detailProbing the tacticity of ring-opened metathesis polymers of norbornene and norbornadiene diesters by NMR spectroscopy
Delaude, Lionel ULg; Demonceau, Albert ULg; Noels, Alfred ULg

in Bencze, Laszlo; Imamoglu, Yavuz (Eds.) Novel metathesis chemistry: designing well-defined initiator systems for specialty chemical synthesis, tailored polymers and advanced material application (2003)

This chapter summarizes the various NMR experiments that were applied to probe the main stereochemical features of polymers prepared by ring-opening metathesis polymerization (ROMP) of 2,3 ... [more ▼]

This chapter summarizes the various NMR experiments that were applied to probe the main stereochemical features of polymers prepared by ring-opening metathesis polymerization (ROMP) of 2,3-dicarboalkoxynorbornadienes and 2,3-dicarboalkoxynorbornenes catalyzed by the dichloro ruthenium arene dimer (RuCl2(p-cymene))2 in the presence of trimethylsilyldiazomethane (TMSD). Direct spectroscopic methods based on the examination of cross-coupling peaks in polymers derived from optically active monomers (1H COSY NMR) and indirect methods based on the analysis of the hydrogenated derivatives of unsaturated parent polyolefins (1H and 13C NMR) led to the same conclusion. They both showed that high trans, highly isotactic polymers were formed using the ruthenium-arene catalyst precursor. [less ▲]

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See detail3D spatial relationships model: a useful concept for 3D cadastre?
Billen, Roland ULg; Zlatanova, Siyka

in Computers, Environment & Urban Systems (2003), 27(4), 411-425

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See detailIndépendance des commissaires et administrateurs indépendants: le miroir aux alouettes?
Thirion, Nicolas ULg

in Sociétés et ASBL: questions d'actualité (2003)

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