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See detailLes intermittences du corps filmique: Pathologies et blessures de l’image dans la pratique contemporaine du found footage
Thonon, Jonathan ULg

in André, Emmanuelle; Lioult, Jean-Luc (Eds.) Penser la création audiovisuelle (2008)

Depuis un demi-siècle et de manière exponentielle ces vingt dernières années, le champ de l’art contemporain et celui du cinéma n’ont cessé d’engendrer des processus mutuels d’hybridation, par ... [more ▼]

Depuis un demi-siècle et de manière exponentielle ces vingt dernières années, le champ de l’art contemporain et celui du cinéma n’ont cessé d’engendrer des processus mutuels d’hybridation, par contamination(s), échange(s) et transfert(s), rendant à la fois tangible et poreuse la frontière qui semblait s’être définitivement érigée entre l’art de masse et l’art d’élite. Il est une pratique assez symptomatique de cette interrogation muséale qui naît de l’exposition de cinéma. Pratique historiquement ancrée dans cet espace plastique charnière que constitue le cinéma expérimental, le cinéma de found footage nous offre le terrain idéal qui nous permet, à la fois, de penser l’histoire (du cinéma et des formes cinématographiques) au moyen de films qui en constituent, en quelque sorte, la pensée en acte, mais aussi, au regard de l’histoire même de cette pratique et de son évolution et à partir d’objets contemporains qui en réactualisent la forme et le discours, de repenser le rapport « cinéma – art contemporain » à la lueur de formes filmiques renouvelées. [less ▲]

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See detailDéfinir l'économie sociale en Belgique
Mertens de Wilmars, Sybille ULg; Marée, Michel ULg

in E-Note (2008), 4

Les différentes définitions de l’économie sociale qui coexistent en Belgique sont soumises à une analyse critique et systématique. Les auteurs identifient ce qui constitue le socle commun des différentes ... [more ▼]

Les différentes définitions de l’économie sociale qui coexistent en Belgique sont soumises à une analyse critique et systématique. Les auteurs identifient ce qui constitue le socle commun des différentes interprétations qu'on peut donner à ce concept et éclairent le débat sur les points de divergence. Ils montrent ensuite que les formes juridiques pressenties pour appartenir à l'économie sociale n'offrent pas une garantie complète de respect des principes qui fondent les définitions de l'économie sociale. Les auteurs concluent que la variabilité dans l'interprétation du concept d'économie sociale et l'insuffisance du critère juridique pour repérer les organisations d'économie sociale ne favorisent pas le développement d'un sentiment d'appartenance à ce troisième secteur. [less ▲]

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See detailBayesian data fusion applied to water table spatial mapping
Fasbender, D.; Peeters, Luk; Bogaert, P. et al

in Water Resources Research (2008), 44

Water table elevations are usually sampled in space using piezometric measurements that are unfortunately expensive to obtain and are thus scarce over space. Most of the time, piezometric data are ... [more ▼]

Water table elevations are usually sampled in space using piezometric measurements that are unfortunately expensive to obtain and are thus scarce over space. Most of the time, piezometric data are sparsely distributed over large areas, thus providing limited direct information about the level of the corresponding water table. As a consequence, there is a real need for approaches that are able at the same time to (1) provide spatial predictions at unsampled locations and (2) enable the user to account for all potentially available secondary information sources that are in some way related to water table elevations. In this paper, a recently developed Bayesian data fusion (BDF) framework is applied to the problem of water table spatial mapping. After a brief presentation of the underlying theory, specific assumptions are made and discussed to account for a digital elevation model and for the geometry of a corresponding river network. On the basis of a data set for the Dijle basin in the north part of Belgium, the suggested model is then implemented and results are compared to those of standard techniques such as ordinary kriging and cokriging. Respective accuracies and precisions of these estimators are finally evaluated using a ‘‘leave-one-out’’ cross-validation procedure. Although the BDF methodology was illustrated here for the integration of only two secondary information sources (namely, a digital elevation model and the geometry of a river network), the method can be applied for incorporating an arbitrary number of secondary information sources, thus opening new avenues for the important topic of data integration in a spatial mapping context. [less ▲]

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See detailIs there anybody in there? Detecting awareness in disorders of consciousness.
Demertzi, Athena; Vanhaudenhuyse, Audrey ULg; Bruno, Marie-Aurelie et al

in Expert Review of Neurotherapeutics (2008), 8(11), 1719-30

The bedside detection of awareness in disorders of consciousness (DOC) caused by acquired brain injury is not an easy task. For this reason, differential diagnosis using neuroimaging and ... [more ▼]

The bedside detection of awareness in disorders of consciousness (DOC) caused by acquired brain injury is not an easy task. For this reason, differential diagnosis using neuroimaging and electrophysiological tools in search for objective markers of consciousness is being employed. However, such tools cannot be considered as diagnostic per se, but as assistants to the clinical evaluation, which, at present, remains the gold standard. Regarding therapeutic management in DOC, no evidence-based recommendations can be made in favor of a specific treatment. The present review summarizes clinical and paraclinical studies that have been conducted with neuroimaging and electrophysiological techniques in search of residual awareness in DOC. We discuss the medical, scientific and ethical implications that derive from these studies and we argue that, in the future, the role of neuroimaging and electrophysiology will be important not only for the diagnosis and prognosis of DOC but also in establishing communication with these challenging patients. [less ▲]

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See detailExperiences de mort imminente: phenomenes paranormaux ou neurologiques?
Thonnard, Marie ULg; Schnakers, Caroline ULg; Boly, Mélanie ULg et al

in Revue Médicale de Liège (2008), 63(5-6), 438-44

Seeing a bright light at the end of a tunnel or having a sense of being out of the physical body are phenomena that some patients report after having been close to death. Some spiritual and psychological ... [more ▼]

Seeing a bright light at the end of a tunnel or having a sense of being out of the physical body are phenomena that some patients report after having been close to death. Some spiritual and psychological theories have been developed in order to explain these near-death-experiences. Clinical studies have aimed to determine their frequency and to assess their precipitating factors. Recent neuroimaging studies, however, have shown the involvement of the temporo-parietal cortex in the generation of out-of-body experiences and are offering a physiological, neurological account for the phenomenon, rebuffing dualistic, non-physical explanations. [less ▲]

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See detailThe Working Conditions and Control Questionnaire (WOCCQ) : Towards a structural model of psychological stress
Hansez, Isabelle ULg

in European Review of Applied Psychology = Revue Européenne de Psychologie Appliquée (2008), 58

This paper examined the structural model of subjective stress considering the job control dimensions of the WOrking Conditions and Control Questionnaire (WOCCQ), a psychosocial risk diagnosis widely used ... [more ▼]

This paper examined the structural model of subjective stress considering the job control dimensions of the WOrking Conditions and Control Questionnaire (WOCCQ), a psychosocial risk diagnosis widely used in French-speaking countries. Two research questions were investigated: (1) Do all the control facets influence subjective stress in the same way?, and (2) Are certain control scales more important than others in the prediction of stress? The sample used includes 816 workers of a public employment agency. First, not all of the facets of job control influence stress in the same way. The control of resources dimension is important in indirectly influencing the stress process. Planning control is a partial mediator between control of resources and other dimensions of control. The model suggests considering future control as an exogenous variable. Finally, the direct effect of the four job control subscales on stress is identical in terms of R-square. These results are discussed not only in the theoretical perspective of stress at work but also in the stress intervention perspective. [less ▲]

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See detailContamination of poultry flocks by the human pathogen Campylobacter spp. and strategies to reduce its prevalence at the farm level.
Vandeplas, Sabrina ULg; Marcq, Christopher ULg; Dubois Dauphin, Robin et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2008), 12(3), 317-334

Enteric Campylobacter spp. bacteria are human pathogens that frequently contaminate poultry flocks. Consumption of products from poultry origin may then lead to acute bacterial enteritis called ... [more ▼]

Enteric Campylobacter spp. bacteria are human pathogens that frequently contaminate poultry flocks. Consumption of products from poultry origin may then lead to acute bacterial enteritis called campylobacteriosis of which prevalence is increasing for about ten years in Europe. This review summarizes Campylobacter epidemiological data, risk factors for contamination in poultry flocks and conceivable strategies to control this pathogen. [less ▲]

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See detailMaternal transfer of trace elements in leatherback turtles (Dermochelys coriacea) of French Guiana
Guirlet, Elodie ULg; Das, Krishna ULg; Girondot, Marc

in Aquatic Toxicology (2008), 88

In sea turtles, parental investment is limited to the nutrients and energy invested in eggs that will support embryonic development. Leatherback females have the largest clutches with the biggest eggs of ... [more ▼]

In sea turtles, parental investment is limited to the nutrients and energy invested in eggs that will support embryonic development. Leatherback females have the largest clutches with the biggest eggs of the sea turtles and the highest reproductive output in reptiles. The migration between foraging sites and nesting beaches also represents high energy expenditure. The toxicokinetic of pollutants in the tissues is thus expected to vary during those periods but there is a lack of information in reptiles. Concentrations of essential (Copper, Zinc, Selenium) and non-essentials elements (Cadmium, Lead, Mercury) were determined in blood (n = 78) and eggs (n = 76) of 46 free-ranging leatherback females collected in French Guiana. Maternal transfer to eggs and relationships between blood and eggs concentrations during the nesting seasonwere investigated. All trace elementswere detectable in both tissues. Levels of toxic metals were lower than essential elements likely due to the high pelagic nature of leatherbacks that seems to limit exposure to toxic elements. Significant relationships between blood and egg concentrations were observed for Se and Cd. Se could have an important role in embryonic development of leatherback turtles and Cd transfer could be linked to similar carrier proteins as Se. Finally, as multiple clutcheswere sampled from each female, trends in trace elements were investigated along the nesting season. No change was observed in eggs but changeswere recorded in blood concentrations of Cu. Cu level decreased while blood Pb levels increased through the nesting season. The high demand on the body during the breeding season seems to affect blood Cu concentrations. Calcium requirement for egg production with concomitant Pb mobilization could explain the increase in blood Pb concentrations along the nesting season. [less ▲]

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See detailEvidence of a type 1/type 2 dichotomy in the correlation between quasar optical polarization and host-galaxy/extended emission position angles
Borguet, Benoît ULg; Hutsemekers, Damien ULg; Letawe, Géraldine ULg et al

in Astronomy and Astrophysics (2008), 478

Aims.For Seyfert galaxies, the AGN unification model provides a simple and well-established explanation of the type 1/type 2 dichotomy through orientation-based effects. The generalization of this ... [more ▼]

Aims.For Seyfert galaxies, the AGN unification model provides a simple and well-established explanation of the type 1/type 2 dichotomy through orientation-based effects. The generalization of this unification model to the higher luminosity AGNs that quasars are remains a key question. The recent detection of type 2 radio-quiet quasars seems to support such an extension. We propose a further test of this scenario. Methods: On the basis of a compilation of quasar host-galaxy position angles consisting of previously published data and of new measurements performed using HST Archive images, we investigate the possible existence of a correlation between the linear polarization position angle and the host-galaxy/extended emission position angle of quasars. Results: We find that the orientation of the rest-frame UV/blue extended emission is correlated to the direction of the quasar polarization. For type 1 quasars, the polarization is aligned with the extended UV/blue emission, while these two quantities are perpendicular in type 2 objects. This result is independent of the quasar radio loudness. We interpret this (anti-)alignment effect in terms of scattering in a two-component polar+equatorial model that applies to both type 1 and type 2 objects. Moreover, the orientation of the polarization -and then of the UV/blue scattered light- does not appear correlated to the major axis of the stellar component of the host-galaxy measured from near-IR images. [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 detailHydrogeological study of Somes-Szamos transboundary alluvial aquifer
Dassargues, Alain ULg; Drobot, Radu; Lenart, Laszlo et al

in Technical/Scientific Issues of Transboudary Water Management: Experience from around the world (2008)

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See detailComment je traite... un herpès labial récidivant.
Nikkels, Arjen ULg; Pierard, Gérald ULg

in Revue Médicale de Liège (2008), 63

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See detailUrgences dermatologiques de première ligne
Pierard-Franchimont, Claudine ULg; Devillers, Céline; Paquet, Philippe ULg et al

in Revue Médicale de Liège (2008), 63

Les urgences dermatologiques couvrent de nombreuses affections, en particulier celles d’origine infectieuse, auto-immune et environnementale. Elles sont fréquemment responsables de consultations chez le ... [more ▼]

Les urgences dermatologiques couvrent de nombreuses affections, en particulier celles d’origine infectieuse, auto-immune et environnementale. Elles sont fréquemment responsables de consultations chez le médecin généraliste et auprès d’unités de médecine d’urgence hospitalière. Les praticiens concernés se retrouvent alors en première ligne pour gérer des situations potentiellement dramatiques. Nous discutons les affections les plus fréquentes incluant l’urticaire, l’angioedème, la cellulite infectieuse, les lucites aiguës, le syndrome de Lyell, d’autres réactions médicamenteuses paroxystiques indésirables, les brûlures, l’état d’érythrodermie et l’éruption varicelliforme de Kaposi-Juliusberg. [less ▲]

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See detailIntegrating hydraulic and economic analysis for selecting flood protection measures in the context of climate change
Ernst, Julien ULg; Dewals, Benjamin ULg; Giron, E. et al

in Proceedings of the 4th Int. Symp. on Flood Defence (pp. 133-1-133-9) (2008)

In order to protect our societies from damaging impacts of climate change (floods, heat waves, droughts…), the most cost-effective adaptation strategies must be selected among a wide range of options ... [more ▼]

In order to protect our societies from damaging impacts of climate change (floods, heat waves, droughts…), the most cost-effective adaptation strategies must be selected among a wide range of options (including structural and non-structural protection measures). The Belgian national project “ADAPT” aims to provide guidance for this choice by developing a decision-support system (DSS) for the selection of protection measures against increased risk resulting from climate change, and more specifically from floods. The DSS is based on a combination of cost-benefit analysis (CBA) and multi-criteria analysis (MA), taking into consideration hydraulic, economic, social and ecological indicators. For the purpose of demonstrating the relevance and efficiency of the DSS, the approach is applied for two case studies located in the two main Belgian river basins (Meuse and Scheldt). Within this global framework, the present paper covers the description of the hydrodynamic modeling component and the economic analysis, focusing on their interactions and on their integration within the DSS. The paper also details the case study of the Meuse Basin (river Ourthe), for which the hydraulic simulations are conducted by means of the two-dimensional numerical model WOLF 2D, based on a finite volume scheme and entirely developed at the University of Liege. High resolution Digital Surface Models and geographic database are exploited, enabling to represent streets, buildings and parcels individually. Relevant damage functions are validated and refined based on the analysis of four recent major flood events, for which a relationship may established between simulated local water depths (and possibly velocities or flow duration) and actual damage costs. Consequently, the combined hydrodynamic and economic analysis described in the paper may be judged as a valuable tool for assessing the effectiveness of specific flood protection measures. [less ▲]

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See detailLes plantes ont-elles un quota de CO2 fixé ?
Périlleux, Claire ULg

Article for general public (2008)

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See detailLes hyperconflits en organisation
Faulx, Daniel ULg; Delvaux, Sophie

in Actes du 15ème Congrès de Psychologie du Travail et des Organisation de Langue Française. CD-rom. Québec.. (2008)

La description et la compréhension des conflits extrêmes ou « hyperconflits » constituent de nouvelles préoccupations en Psychologie du Travail et des Organisations. A partir de l’analyse des résultats de ... [more ▼]

La description et la compréhension des conflits extrêmes ou « hyperconflits » constituent de nouvelles préoccupations en Psychologie du Travail et des Organisations. A partir de l’analyse des résultats de huit focus groups composés de professionnels du traitement des conflits, nous dégageons 24 indicateurs des hyperconflits. Plus généralement, il ressort de notre étude que ces situations sont liées à une réduction de la complexité du système organisationnel couplée à une généralisation de la dynamique conflictuelle du point de vue de l’espace-temps, des processus et des conséquences. Les implications en termes d’interventions sont également discutées. [less ▲]

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See detailPortions et antioxydants en pratique.
Pincemail, Joël ULg; Defraigne, Jean-Olivier ULg

in Nutrition Infos (2008), (oct-nov-déc), 30-33

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See detailL'insuffisance mitrale par degenerescence myxoide: aspect biochimique et considerations physiopathologiques.
Radermecker, Marc ULg; Boulanger, Kevin ULg; Hulin, Alexia ULg et al

in Revue Médicale de Liège (2008), 63(4), 187-92

Mitral valve is a complex structure which is submitted to repeated mechanical constraints. In clinical practice, an increasing incidence of mitral insufficiency resulting from myxomatous degeneration is ... [more ▼]

Mitral valve is a complex structure which is submitted to repeated mechanical constraints. In clinical practice, an increasing incidence of mitral insufficiency resulting from myxomatous degeneration is observed. Since myxomatous degeneration is also observed in defined genetic diseases of connective tissues, we propose the hypothesis that idiopathic mitral insufficiency might result from a minor alteration of the interstitial valvular cells and/or their interactions with their support. After a brief review of the role of the extracellular matrix in the heart, some histopathological and biochemical aspects of myxomatous degeneration are presented. Our data and those of the literature will be summarized and a physiopathological hypothesis proposed for myxomatous mitral valve degeneration. [less ▲]

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See detailL'image du mois. Image typique d'un shunt gauche-droit.
Legrain, Caroline ULg; Creemers, Etienne ULg; Radermecker, Marc ULg et al

in Revue Médicale de Liège (2008), 63(4), 172-3

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See detailAarhus et le juge. Quelques considérations
Pâques, Michel ULg

in Association des Conseils d'Etat et des Juridictions administratives suprêmes de l'Union européenne a.i.s.b.l. (2008)

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