References of "2008"
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See detailModélisation hydrologique à grande échelle des zones imperméables égouttées
Khuat Duy, Bruno; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in 3èmes Journées Doctorales en Hydrologie Urbaine (JDHU) (2008)

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See detailAstrobiologie
Javaux, Emmanuelle ULg; Claeys, Philippe; Dehant, Véronique et al

Learning material (2008)

powerpoint sur MyULg, notes partielles imprimées

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See detailLes apports de la pléthysmographie et de la psychologie cognitive dans la compréhension des relations entre l’anxiété et l’excitation sexuelle
Kempeneers, Philippe ULg; Barbier, Valérie

in Journal de Thérapie Comportementale et Cognitive (2008), 18

For years, sexual arousal has been considered as incompatible with anxiety. Studies using plethysmographic techniques developed in the last decades have demonstrated that it is not always so. Depending on ... [more ▼]

For years, sexual arousal has been considered as incompatible with anxiety. Studies using plethysmographic techniques developed in the last decades have demonstrated that it is not always so. Depending on experimental conditions, anxiety can exert an inhibitory, neutral or facilitative effect. It’s tempting to establish a link between these observation data and concepts otherwise issued from cognitive psychology. A coherent theory can thus be inferred about the relationship between anxiety and sexual arousal. This theory can be summed up in a few major points: (1) the inhibitory effect of anxiety on sexual function would mainly be due to a cognitive interference phenomenon: the subject focuses on danger cues rather than on erotic stimuli. (2) In this case, the subject’s working memory is saturated by danger-related information, therefore cognitive function available for treating erotic stimuli is diminished and sexual response is impaired. (3) A cognitive-emotional structure called erotophobia could be regarded as a vulnerability factor to cognitive interference. (4) If he cognitive interference mechanism is not activated, anxiety tends to facilitate sexual arousal, (5) by increasing the attention on erotic cues or/and (6) by attributing the physiological correlates of anxiety to an erotic source [less ▲]

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See detailAnalyse quantitative par spectroscopie proche infrarouge: Application au test d'unifomité de teneur des comprimés
Ginot, Y. M.; Bernard-Moulin, P.; Cinier, R. et al

Conference (2008)

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des ... [more ▼]

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des échantillons et à leur état physique. Elle peut être mise à profit pour des analyses qualitatives, telles l'identification des matières premières, et également pour des analyses quantitatives telles le dosage d'un principe actif dans un comprimé. Avec pour avantage une rapidité inégalée pour délivrer un résultat comparée aux techniques classiques en vigueur. Attrayante par ses performances, cette spectroscopie nécessite cependant une prise en main qui doit respecter une démarche minutieuse et souvent déroutante par son aspect heuristique (allers-retours) et à la mise en oeuvre d'outils d'analyse statistique multivariée. Si de nombreuses publications témoignent de la puissance de cet outil, il est apparu opportun de rassembler en un même texte la démarche de développement à suivre et les repères à connaître pour permettre son utilisation en analyse quantitative dans un contexte de libération pharmaceutique. Le travail de cette commission a été de rassembler les éléments issus de la pratique industrielle en se concentrant sur l'un des essais les plus intéressants: celui de l'uniformité de teneur des comprimés. Ce test est en effet l'une des applications où la rapidité de mise en oeuvre est le plus appréciable, tout en étant celui qui peut poser le plus de questions quant à la validité des résultats et la prise de décision pharmaceutique. [less ▲]

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See detailPrinciples of design of a set-reset finite state logic nanomachine
Klein, M.; Levine, R. D.; Remacle, Françoise ULg

in Journal of Applied Physics (2008), 104(4),

Pulsed electrical set and reset inputs are used to simulate the temporal action of a finite state machine in a three terminal configuration for a variety of arrangements. The gate electrode is necessary ... [more ▼]

Pulsed electrical set and reset inputs are used to simulate the temporal action of a finite state machine in a three terminal configuration for a variety of arrangements. The gate electrode is necessary only if it is of interest to tune the tunneling rate and to compensate for background charges. When the output is the current, a source and drain electrodes are required. If the output is determined by measuring charge occupancy, then a single junction suffices. The electron transfer rates are computed from the free energy change for a single electron transfer to or from a quantum dot of size such that only charge quantization matters. For a small enough dot the device could operate at room temperature. An asymmetric configuration of the source and drain favors a longer term time preservation of the memory of the device. An alternative design that operates with the same energetics and kinetic parameters is to pulse the resistance rather than the voltage. (C) 2008 American Institute of Physics. [less ▲]

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See detailProfile of methylaion of tumour related genes in breast cancer in Tunisian women
Hachana, Mohamed Ridha ULg; Trimeche, Mounir; Ziadi, Sonia et al

in European Journal of Cancer (2008), 6(9), 195

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See detailAcoustique du bâtiment
Embrechts, Jean-Jacques ULg

Learning material (2008)

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See detailConceptual model uncertainty in groundwater modeling: Combining generalized likelihood uncertainty estimation and Bayesian model averaging
Rojas, Rodrigo; Feyen, Luc; Dassargues, Alain ULg

in Water Resources Research (2008), 44

Uncertainty assessments in groundwater modeling applications typically attribute all sources of uncertainty to errors in parameters and inputs, neglecting what may be the primary source of uncertainty ... [more ▼]

Uncertainty assessments in groundwater modeling applications typically attribute all sources of uncertainty to errors in parameters and inputs, neglecting what may be the primary source of uncertainty, namely, errors in the conceptualization of the system.Confining the set of plausible system representations to a single model leads to underdispersive and prone-to-bias predictions. In this work, we present a general and flexible approach that combines generalized likelihood uncertainty estimation (GLUE) and Bayesian model averaging (BMA) to assess uncertainty in model predictions that arise from errors in model structure, inputs, and parameters. In a prior analysis, a set of plausible models is selected, and the joint prior input and parameter space is sampled to form potential simulators of the system. For each model, the likelihood measures of acceptable simulators, assigned to thembased on their ability to reproduce observed systembehavior, are integrated over the joint input and parameter space to obtain the integrated model likelihood. The latter is used to weight the predictions of the respective model in the BMA ensemble predictions. For illustrative purposes, we applied the methodology to a three-dimensional hypothetical setup. Results showed that predictions of groundwater budget terms varied considerably among competing models; despite this, a set of 16 head observations used for conditioning did not allow differentiating between the models. BMA provided average predictions that were more conservative than individual predictions obtained for individual models. Conceptual model uncertainty contributed up to 30% of the total uncertainty. The results clearly indicate the need to consider alternative conceptualizations to account for model uncertainty. [less ▲]

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See detailA l'attention des propriétaires distraits ou négligents : le sort des biens trouvés au regard du droit des biens
Boufflette, Sophie ULg

in Revue Générale de Droit Civil Belge = Tijdschrift voor Belgisch Burgerlijk (2008)

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See detailMultidisciplinary approach to reconstruct the Belgian Frasnian platform - facies, carbon isotopes and magnetic susceptibility
Da Silva, Anne-Christine ULg; Mabille, Cedric; Boulvain, Frédéric ULg

in . SDGG, Heft 58 – Abstract Volume – 26th IAS Regional Meeting/SEPM-CES SEDIMENT 2008 (2008)

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See detailPatronage, Devotion and Gender Roles in Burgundian Court Art
L'Estrange, Elizabeth ULg

in Art History (2008), 31(1), 117-122

Review of Pearson's book Envisioning Gender in Burgundian Devotional Art, 1350-1530 and the exhibition and related catalogue, Women of Distinction: Margaret of York and Margaret of Austria, held in ... [more ▼]

Review of Pearson's book Envisioning Gender in Burgundian Devotional Art, 1350-1530 and the exhibition and related catalogue, Women of Distinction: Margaret of York and Margaret of Austria, held in Mechelen in 2005 [less ▲]

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See detailUtiliser la logique floue pour gérer une production
Henry, Valérie ULg

in Tangente (2008), 126

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See detailEddy flux measurements in difficult conditions.
Schimel, David; Aubinet, Marc ULg; Finnigan, John

in Ecological applications : a publication of the Ecological Society of America (2008), 18(6),

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See detailUrgences Pédiatriques
Carvelli, Thierry ULg; Viellevoye, Renaud ULg; Misson, Jean-Paul ULg

Book published by Université de Liège (2008)

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See detailPrésentation
Badir, Sémir ULg; Klinkenberg, Jean-Marie ULg

in Badir, Sémir; Klinkenberg, Jean-Marie (Eds.) Figures de la figure. Sémiotique et rhétorique générale (2008)

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See detailEvolution des modalités d'évaluation de la fonction rénale basée sur la créatinine entre 2005 et 2008: conséquences pour les biologistes
Séronie-Vivien, S.; Piéroni, L.; Galteau, M.-M. et al

in Annales de Biologie Clinique (2008), 66(3), 263-8

Les recommandations internationales de 2005 concernant l’insuffisance rénale chronique proposent une classification basée sur le débit de filtration glomérulaire (DFG). Depuis cette date, la question ... [more ▼]

Les recommandations internationales de 2005 concernant l’insuffisance rénale chronique proposent une classification basée sur le débit de filtration glomérulaire (DFG). Depuis cette date, la question posée de la validité des formules évaluant le DFG, et des créatininémies qui y sont insérées, se pose de façon encore plus cruciale qu’il y a quelques années. Pour les biologistes, les conséquences de ces recommandations cliniques sont importantes. En premier lieu, la formule classique de Cockcroft-Gault doit être abandonnée au profit de l’équation dite MDRD à 4 variables, et ce malgré les recommandations officielles françaises actuelles, qui devraient être modifiées d’ici peu. D’autre part, afin d’optimiser l’évaluation du DFG par cette formule, les biologistes doivent choisir entre la version dite « 186 » de l’équation MDRD, adaptée aux méthodes de dosage de la créatininémie non raccordées à la méthode de référence (chromatographie liquide ou gazeuse couplée à la spectrométrie de masse) et la version dite « 175 », adaptée aux méthodes de dosages raccordées. A ce jour, seules certaines méthodes enzymatiques ont fait la preuve de leur raccordement à une méthode de référence. L’avenir des méthodes colorimétriques classiques est incertain. [less ▲]

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See detailQuasar Host Orientation and Polarization: Insights into the Type 1/Type 2 Dichotomy
Borguet, Benoît ULg; Hutsemekers, Damien ULg; Letawe, Géraldine ULg et al

in Revista Mexicana de Astronomía y Astrofísica (2008), 32

We investigate correlations between the optical linear polarization position angle and the orientation of the host galaxy/extended emission of Type 1 and Type 2 Radio-Loud (RL) and Radio-Quiet (RQ ... [more ▼]

We investigate correlations between the optical linear polarization position angle and the orientation of the host galaxy/extended emission of Type 1 and Type 2 Radio-Loud (RL) and Radio-Quiet (RQ) quasars. We have used high resolution Hubble Space Telescope (HST) data and deconvolution process to obtain a good determination of the host galaxy orientation. With these new measurements and a compilation of data from the literature, we find a significant correlation between the polarization position angle and the position angle of the major axis of the host galaxy/extended emission. The correlation appears different for Type 1 and Type 2 objects and depends on the redshift of the source. Interpretations in the framework of the unification model are discussed. [less ▲]

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See detailDécomposition photocatalytique de polluants et de micro-organismes dans l'eau
Heinrichs, Benoît ULg; Pirard, Jean-Paul ULg; Lambert, Stéphanie ULg et al

E-print/Working paper (2008)

Dans le cadre de la réutilisation des eaux usées et de l’accès limité à l’eau potable dans certaines régions du globe, de nouvelles techniques de désinfection nécessitant de faibles consommations ... [more ▼]

Dans le cadre de la réutilisation des eaux usées et de l’accès limité à l’eau potable dans certaines régions du globe, de nouvelles techniques de désinfection nécessitant de faibles consommations d’énergie sont étudiées. Cette eau n’est pas toujours potable et contient des polluants qui induisent des mutations génétiques pouvant conduire au développement de cancers ou encore des micro-organismes pathogènes causant des maladies graves. Depuis la découverte des propriétés de photodégradation oxydante du dioxyde de titane (TiO2), la photocatalyse hétérogène est utilisée pour l’élimination des polluants environnementaux et des micro-organismes. [less ▲]

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See detailStructure et ontogenèse des comportements de banc chez deux poissons Cichlidés: approche quantitative par l'utilisation du vidéotracking automatisé chez Oreochromis niloticus et Pelvicachromis pulcher.
Delcourt, Johann ULg

Doctoral thesis (2008)

Structures and ontogeny of schools in two cichlid fishes: quantitative approach with computerized videotracking systems in Oreochromis niloticus and Pelvicachromis pulcher. by Johann DELCOURT (Behavioural ... [more ▼]

Structures and ontogeny of schools in two cichlid fishes: quantitative approach with computerized videotracking systems in Oreochromis niloticus and Pelvicachromis pulcher. by Johann DELCOURT (Behavioural Biology Unit, Ethology and Animal Psychology, University of Liège, Belgium) The research works presented in this thesis, using new ethometric techniques based on digital imaging analysis, concerns several questions relating to the study of shoaling and schooling behaviours in early stages of life in two Cichlid species. Our two model species, the Nile tilapia (Oreochromis niloticus L.) and Pelvicachromis pulcher, are respectively a mouthbreeder and a substrate breeder. These reproductive and parental strategies have a direct impact on the ontogeny of fry. In this study, we have worked at understanding the impact of these strategies on the ontogeny of shoaling and schooling behaviours. The characterization of these behaviours needed the elaboration of new videotracking systems able to track individually a large number of fish, and the analysis of the spatial and dynamical structure of the group. After an extensive general introduction devoted to the shoaling and schooling behaviours in regards of the ethological study plan, we present our works in three major goals. These three topics concern: 1. Lab works using some classical methods of direct observation and a technique of computerised vision systems (Ethovision®). Moreover, Laboratory studies of fish groups were conducted to develop a new multitracking system, in collaboration with the G.R.A.S.P. (ULg), able to track a large number of unmarked individuals (up to 100 fishes) during several minutes. Thanks these two tracking systems, we studied the fry behaviours at the individual and the groups levels. 2. The emergence conditions of these behaviours. Are the fry able to adopt these behaviours in absence of parents, in absence of external stimuli? In this context, we described the spatial and dynamical (local and global) structures of groups to understand the mechanisms allowing the existence of schools. 3. The ontogeny of shoaling and schooling behaviours in the two model parental species. The first part exposes research devoted to the application, development and validation of the use of two videotracking systems (presented in the material and methods section). The advantages, capacities and limits of these systems are presented. The work concerning the emergence (the mechanisms) and the ontogeny are presented in scientific paper format in the “Results” section. A large general discussion centred on the three major goals (development of new ethometric tools, the structures and mechanisms of schools and the ontogeny of shoaling and schooling behaviours) concludes this PhD dissertation. [less ▲]

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See detailImpacts and uncertainties of upscaling of remote sensing data validation for a semi-arid woodland.
Hufkens, K.; Bogaert, Jan ULg; Dong, Q H et al

in Journal of Arid Environments (2008), 72

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