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See detailGiacomo Casanova: Histoire de ma vie, extraits. Divers extraits de livre. Traductions effectuées pour la mise en scène de "Casanova, Theater mit Figuren"
Casanova, Giacomo; Flem, Lydia; Le Bitouzé, Corinne et al

Article for general public (2012)

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See detailThe oxygen nightglow emissions of Venus: vertical distribution and role of collisional quenching
Gérard, Jean-Claude ULg; Soret, Lauriane ULg; Migliorini, Alessandra et al

Conference (2012, April)

The oxygen nightglow emissions of Venus: vertical distribution and role of collisional quenching J.-C. Gérard (1), L. Soret (1), A. Migliorini (2), G. Piccioni (2), and P. Drossart (3) (1) LPAP ... [more ▼]

The oxygen nightglow emissions of Venus: vertical distribution and role of collisional quenching J.-C. Gérard (1), L. Soret (1), A. Migliorini (2), G. Piccioni (2), and P. Drossart (3) (1) LPAP - Université de Liège - Belgium (jc.gerard@ulg.ac.be, 0032 4 366 9711), (2) INAF - Rome, Italy, (3) LESIA, Observatoire de Paris - Meudon, France Three-body recombination of atomic oxygen produces O2 molecules excited in different electronic states such as a 1∆g, b 1 􏰀+g , A 3 􏰀+u , c 1 􏰀uand A’ 3∆u, each with a specific quantum efficiency. When they radiate, optical transitions are observed in a wide range of wavelengths extending from the ultraviolet to the near infrared. In planetary atmospheres, spontaneous radiative deexcitation compete with collisional quenching with ambient molecules and atoms. As a consequence, the corresponding airglow emission profiles may significantly differ from each other in brightness and altitude of the emitting layer. We model the volume emission rates and limb profiles of the O2 Atmospheric Infrared (a 1∆-X 3 􏰀), Herzberg I (A 3 􏰀-X 3 􏰀), Herzberg II (c 1 􏰀-X 3 􏰀), Chamberlain (A’ 3∆-a 1∆) bands expected on the Venus night side. The quenching rates are taken from laboratory and observational planetary data and we apply two different methods to determine the oxygen and CO2 density profiles. One is based on recent analysis of data collected by instruments on board the Venus Express mission. The second one uses a one-dimensional chemical-diffusive model where the free parameters are the strength of turbulent transport and the downward flux of O atoms. Both approaches indicate that the calculated intensities of each transition range over several orders of magnitude and that differences are expected in the altitude of the maximum emission. These predictions will be compared with VIRTIS/Venus Express limb observations, which make it possible to derive the vertical distribution of the O2 emissions in the visible and infrared. These measurements suggest that no difference is observed between the altitude of the peak of the IR Atmospheric and Herzberg II bands. Conclusions will be drawn about the validity of the current set of quenching coefficients used in the model. [less ▲]

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See detailIntroduction générale
Bouhon, Frédéric ULg; Reuchamps, Min ULg

in Bouhon, Frédéric; Reuchamps, Min (Eds.) Les systèmes électoraux de la Belgique (2012)

Cette introduction ouvre un ouvrage collectif consacré aux systèmes électoraux de la Belgique. Elle insiste sur le caractère multidisciplinaire de l'étude des questions électorales qui est proposée dans ... [more ▼]

Cette introduction ouvre un ouvrage collectif consacré aux systèmes électoraux de la Belgique. Elle insiste sur le caractère multidisciplinaire de l'étude des questions électorales qui est proposée dans le livre et en présente le plan. [less ▲]

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See detailBiological variations during a race cycling
LE GOFF, Caroline ULg; Kaux, Jean-François ULg; Goffaux, Sébastien et al

in Biomedica 2012 (2012, April)

Background: The metabolic and cardiac impact of a cycling effort on blood biology is not very well described in the literature. We aimed to measure the concentration of different biomarkers (cardiac and ... [more ▼]

Background: The metabolic and cardiac impact of a cycling effort on blood biology is not very well described in the literature. We aimed to measure the concentration of different biomarkers (cardiac and metabolic) released during an international cycling race. Materials and Methods: Venous blood samples of 15 young men (25.1 ± 6.4 y.o.) were collected just before (T1), just after (T2), 3 hours (T3) after an international cycling race of 176 kilometers in Belgium for the determination of cardiac and metabolic biomarkers: red blood cells (RBC) haemoglobin (HgB) creatinin (Cr) highly sensitive troponin T (hsTnT) myoglobin (MYO) NT-proBNP All automated assays were performed according to the manufacter’s specifications. For the statistical analysis, an Anova calculated with the Statistica Software version 9.1 was used. Results: •RBC and HgB levels varied significantly between T0 and T3 (respectively p=0.0026, and p=0.002) (Fig. 1 and 2). • Cr concentration also varied significantly between all times (T0-T1:p<0.0001, T1-T3:p=0.0326 and T0-T3 p=0.0001)(Fig.3). These changes might be related to renal flow depletion during exercise. •MYO increased significantly between T0 and T1 (p<0.0001), but quickly decreased between T1 and T3, however the T3 level stay higher than T0 (p=0.014) (Fig.4). •The stress delivered from the physical activity performed during the race induced a significant variation of hsTnT which increased significantly between T0 and T1 (p<0.0001) and stayed higher 3 hours after the end of the exercise (T0-T3: p<0.0001) (Fig.5) . •The intense exercise delivery by the race induced a significant variation of NT-proBNP, that followed the same kinetic of hsTnT but in smaller proportion. We noticed variations statistically significant between T0 and T1 and between T0 and T3 for NT-proBNP (Fig.6). •These increases of cardiac biomarkers were significant but reasonable and could not allow us to talk about cellular necrosis or irreversible injury. Conclusions: Our results show that stress generated by a cycling race could be the cause for the different metabolic variations observed. Troponin T stays without a doubt the most specific marker for stress related to myocardial tissue. Its increase can then be considered as being of interest. [less ▲]

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See detailBriefe an Casanova
Roggendorf, Cécile de; Viehöver, Vera ULg

E-print/Working paper (2012)

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See detailFood control & food crisis: challenges in analyses
Focant, Jean-François ULg

Scientific conference (2012, April)

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See detailPrediction of the cross-section capacity of hot-rolled profiles using the direct strength method and the continuous strength method
Li, Yongzhen ULg; Rossi, Barbara ULg

in Chan, S.L.; Shu, G.P. (Eds.) Proceedings of seventh International Conference on Advances in Steel Structures (2012, April)

Material yielding on one hand and local buckling on the other hand limit the cross-section capacity of steel structural members. Current structural design codes use the concept of cross-section ... [more ▼]

Material yielding on one hand and local buckling on the other hand limit the cross-section capacity of steel structural members. Current structural design codes use the concept of cross-section classification to determine the cross-section resistance of hot-rolled profiles. In this system, the Effective Width Method (EWM) is employed to account for local buckling effects for slender, class 4, cross-sections. Alternative design methods for treatment of local buckling in metallic cross-sections have been proposed, including the Direct Strength Method (DSM), developed for cold-formed steel structural profiles, and, recently, the Continuous Strength Method (CSM). The DSM is based on the assumption that the strength can be predicted from the ratio of the yield strength to the elastic critical load in conjunction with a strength curve for the entire cross-section. Thus it is essentially an extension of the use of column curves for global buckling, but with application to local buckling instability. The CSM is a deformation-based design approach which is based on a continuous relationship between cross-sectional slenderness and cross-section deformation capacity and a rational exploitation of strain hardening. This paper is focused on the evaluation of the cross-sectional resistance of hot-rolled structural profiles. Test data from literature experimental programmes have been gathered and analysed to compare the predictions from the DSM and CSM design approaches. [less ▲]

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See detailDu théâtre magique au cinéma fantastique : les figures extatiques de Georges Méliès
Tomasovic, Dick ULg

in Gimello-Mesplomb, Frédéric (Ed.) Le Cinéma fantastique français à l’épreuve du genre fantastique. Socioanalyse d’une production artistique (2012)

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See detailL’homme de lettres en personnage générique. La ‘‘sociologie-fiction’’ des Physiologies
Stienon, Valérie ULg

in Dozo, Björn-Olav; Glinoer, Anthony; Lacroix, Michel (Eds.) Imaginaires de la vie littéraire. Fiction, figuration, configuration (2012)

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See detailL'invité du mois : Jean-François Husson, secrétaire général du CRAIG (Centre de Recherche en Action publique, Intégration et Gouvernance)
Depret, Alain; Husson, Jean-François ULg

Article for general public (2012)

Interview accordée au périodique de l'Union des Villes et Communes de Wallonie sur les activités du CRAIG et sur plusieurs de mes sujets de recherche : finances locales, gouvernance locale, financement ... [more ▼]

Interview accordée au périodique de l'Union des Villes et Communes de Wallonie sur les activités du CRAIG et sur plusieurs de mes sujets de recherche : finances locales, gouvernance locale, financement des cultes. [less ▲]

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See detailDroits de succession et de mutation par décès
Bourgeois, Marc ULg; Douny, Raphaël ULg; Gustin, Manuel ULg et al

in Chroniques notariales (2012)

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See detailCalcium-induced conformational changes of the elicitor and membrane-active fengycin
Nasir, Mehmet Nail ULg; Lins, Laurence ULg; Ongena, Marc ULg et al

Poster (2012, April)

Fengycin is a natural lipopeptide synthetized by Bacillus subtilis strains. It is characterized by strong antifungal and low hemolytic activities. It seems also play a role in the promoting of elicitor ... [more ▼]

Fengycin is a natural lipopeptide synthetized by Bacillus subtilis strains. It is characterized by strong antifungal and low hemolytic activities. It seems also play a role in the promoting of elicitor activities of other compounds. The target of the biological activities of fengycin is supposed to be plasma membrane of sensitive cells. Even though the natural fengycin from has been discovered 25 years ago, nowadays, there is an increase of interest for this compound because of its potent applications. Until 15 years ago, the primary structure of fengycin was a matter of open debate before the publication of the corrected structure obtained by nuclear magnetic resonance and mass spectroscopy techniques. Although the infrared and ultraviolet absorption spectra of the lipopeptide were measured, no detailed analysis of these data was performed probably because of the unconventional sequence of the lipopeptide making these kinds of analyses complicated. In this work, our attempt was to analyze the conformational properties of fengycin as well as the calcium-induced changes using two complementary spectroscopic methods, Fourrier transformed infrared spectroscopy (FTIR) and circular dichroism (CD). In a first step, we have characterized the conformational properties of pure fengycin. The lipopeptide adopts turn conformation in trifluoroethanol, a membrane-mimicking solvent. D-aminoacids seem to be involved in intra molecular hydrogen bonds. In a second step, we have investigated the role played by Ca2+ ions on the possible conformational changes of fengycin. The addition of calcium gives rise to important modifications of the conformation. As fengycin has two glutamate residues, calcium is supposed to bind to their side chains. In conclusion, we have demonstrated that the conformation of fengycin is closely depending of the environment and the presence of calcium ions play an important role on the conformational changes of the lipopeptide. Moreover, spectra obtained both FTIR and CD methods ascertain the presence of turn conformation. [less ▲]

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See detailL'ancien institut de stomatologie à Bavière en sursis
Charlier, Sébastien ULg

in Nouvelles du Patrimoine (Les) (2012), 135

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See detailPhysiologie, pharmacologie et modélisation de canaux potassiques : zoom sur les canaux SK
Dilly, Sébastien ULg; Poncin, Sylvie; Lamy, Cédric et al

in Medecine Sciences : M/S (2012), 28

Various types of ion channels are involved in the control of neuronal activity. Among them, SK channels represent an interesting therapeutic target. Indeed, they underlie medium duration ... [more ▼]

Various types of ion channels are involved in the control of neuronal activity. Among them, SK channels represent an interesting therapeutic target. Indeed, they underlie medium duration afterhyperpolarizations in many types of neurons, thus inhibiting cell excitability. A thorough knowledge of the physiology of these channels and the discovery of non-peptidic selective modulators able to pass the blood-brain barrier are essential in view of developing future drugs for brain diseases such as those related to a dysfunction of dopaminergic and serotonergic systems. [less ▲]

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See detailLes querelles littéraires : esquisse méthodologique
Stienon, Valérie ULg; Saint-Amand, Denis ULg; Bertrand, Jean-Pierre ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2012), 10

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