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See detailHow bright is the Io UV footprint?
Bonfond, Bertrand ULg; Grodent, Denis ULg; Gérard, Jean-Claude ULg et al

Conference (2010)

The electro-magnetic interaction between Io and the Jovian magnetosphere generates a perturbation in the magnetospheric plasma which propagates along the magnetic field lines and creates auroral footprint ... [more ▼]

The electro-magnetic interaction between Io and the Jovian magnetosphere generates a perturbation in the magnetospheric plasma which propagates along the magnetic field lines and creates auroral footprint emissions in both hemispheres. Recent results showed that this footprint is formed of several spots and an extended tail. Each feature is suggested to correspond to a different step in the propagation of the perturbation and in the electron energization processes. The present study focuses on the variations of the spots' brightness at different timescales from minutes to years through the rotation period of Jupiter. It relies on FUV images acquired with the STIS and ACS instruments onboard the Hubble Space Telescope. Since the footprint is composed of several localized features, a good understanding of the emission region geometry is critical to derive the actual vertical brightness and thus the precipitated energy flux. We developed a 3D emission model in order to assess as precisely as possible the respective contribution of each individual feature and to correctly estimate the precipitating energy flux. As far as the brightness variations on timescales of minutes are concerned, we will present results from the high time resolution campaign executed during summer 2009. On timescale of several hours, we will show that the variation of the emitted power as a function of the location of Io in the plasma torus suggests that the Jovian surface magnetic field strength is an important controlling parameter. Finally, the measured precipitated power and particle fluxes will be discussed in comparison with recent simulations considering both Alfvén waves filamentation and electron acceleration when the Alfvén waves become inertial. [less ▲]

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See detailThe 2007 rifting event in Northern Tanzania studied by C and L-band interferometry
Oyen, Anneleen; Wauthier, Christelle ULg; d'Oreye, Nicolas et al

in ECGS Blue Books (2010)

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See detailEchographie endobronchique: une nouvelle technique d'investigation du mediastin
DUYSINX, Bernard ULg; HEINEN, Vincent ULg; Mobarak Zadeh, K. et al

in Revue Médicale de Liège (2010), 65 Spec no.

Mediastin pathology includes primary lesion and lymph node invasion. The exploration of this anatomical region remains difficult and even hazardous, particularly to obtain histological biopsies. No ... [more ▼]

Mediastin pathology includes primary lesion and lymph node invasion. The exploration of this anatomical region remains difficult and even hazardous, particularly to obtain histological biopsies. No invasive diagnostic exploration (thorax tomodensitometry and positron emission tomography) allows a histological precision, so mediastinoscopy remains the gold standard in the mediastinum investigation. However, it is not deprived of risk. Recently, guided biopsies and real-time transbronchial needle aspiration by endobronchial ultrasonography (EBUS) have been shown to increase the diagnostic yield over conventional bronchoscopic techniques. Therefore, EBUS is a suitable alternative to mediastinoscopy in the diagnosis of pulmonary or extra-thoracic malignancy, in the staging of mediastinal lymphadenopathy, and in the evaluation of mediastinal response after induction therapy. In the present paper, we present this new diagnostic approach and clarify the current indications of EBUS. [less ▲]

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See detailEffects of face and voice learning on access to semantic information from names.
Barsics, Catherine ULg

in Perception (2010), 39 supplement

Several studies showed that it is more difficult to retrieve semantic information from recognized voices than from recognized faces. However, earlier studies that investigated the recall of biographical ... [more ▼]

Several studies showed that it is more difficult to retrieve semantic information from recognized voices than from recognized faces. However, earlier studies that investigated the recall of biographical information following person recognition used stimuli that were pre-experimentally familiar to the participants, such as famous people’s voices and faces. The present study was designed in order to allow a stricter control of frequency exposure with both types of stimuli (voices and faces) and to ensure the absence of identity cues in the spoken extracts. In the present study, subjects had to associate lexical (i.e., name) and semantic information (i.e., occupation) with faces or voices. Interestingly, when asked later to recall semantic information being cued by the person’s names, participants provided significantly more occupations for the targets that had been previously associated with faces than with voices. Moreover, participants’ performance was not significantly different when names and occupation were associated with voices compared with dog’s faces, whose complexity is similar to that of human faces, but for which we have poorer discrimination abilities. These results and their implications for person recognition models, as well as the potential role of the relative distinctiveness of faces and voices, are discussed. [less ▲]

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See detailAngiogenic fast-growing melanomas and their micrometastases.
Quatresooz, Pascale ULg; Pierard, Claudine ULg; Paquet, Philippe ULg et al

in European Journal of Dermatology (2010), 20(3), 302-7

Malignant melanoma (MM), particularly its fast-growing type, is prone to interstitial, intravascular and extravascular migratory metastases. There is no information linking their growth fraction, the ... [more ▼]

Malignant melanoma (MM), particularly its fast-growing type, is prone to interstitial, intravascular and extravascular migratory metastases. There is no information linking their growth fraction, the configuration of the MM advancing edge, the extent in vascularity and the propensity to metastatic progression. The objective of this study was to determine the growth fraction, the size of vascularity and the contours of the progression border of 32 fast-growing MM with regard to the presence or absence of a micrometastatic spread inside the skin and overt metastases in the sentinel lymph nodes. In vivo high resolution colorimetry was performed as a clinical estimate of MM vascularity. Euclidean geometry and fractal analysis were used on immunohistochemical sections. The relative microvasculature profile area beneath MM, and the fractal dimension D of the MM frontline were assessed. The MIB/Ki-67 index was determined in MM cells. Value a* of colorimetry was similarly increased in the presence or absence of micro-metastases. No difference in growth fraction was revealed between these neoplasms. Correlations were found between vascularity and angiotropism, and between the micrometastatic process and the sentinel lymph node involvement. By contrast, no correlation was shown between vascularity and the fractal D dimension of the MM advancing edge. In sum, this study establishes a link between the extent of MM growth fraction, vascularity and the presence of dermal and nodal micrometastases in fast-growing MM. [less ▲]

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See detailGramaccioliite-(Y): paragenesis, chemical, structural, thermal expansion, and compressibility data on a new occurrence from Samos Island, Greece
Theye, Thomas; Hatert, Frédéric ULg; Ockenga, E. et al

in European Journal of Mineralogy (2010), 22

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See detailLes services mis en place en faveur des victimes d’actes délinquants.
Lauwaert, Katrien ULg; Decocq, Mélanie ULg

in Jacobs, Ann; Lauwaert, Katrien (Eds.) Le droit des victimes. (2010)

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See detailTreatment of osteoporosis: recognizing and managing cutaneous adverse reactions and drug-induced hypersensitivity.
Musette, P.; Brandi, M. L.; Cacoub, P. et al

in Osteoporosis International (2010), 21

Cutaneous adverse reactions are reported for many treatments including antiosteoporotic agents. This position paper includes an algorithm for their recognition. With early recognition and proper ... [more ▼]

Cutaneous adverse reactions are reported for many treatments including antiosteoporotic agents. This position paper includes an algorithm for their recognition. With early recognition and proper management, including immediate and permanent withdrawal of the culprit agent, accompanied by hospitalization, rehydration, and systemic corticosteroids, if necessary, the prognosis is good. INTRODUCTION: Cutaneous adverse reactions are reported for many therapeutic agents and observed in between 0% and 8% of treated patients depending on the drug. The antiosteoporotic agents are reputed to be safe in terms of cutaneous effects; however, there have been a number of case reports of cutaneous adverse reactions, which merit consideration. This was the subject of a Working Group meeting of the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis in April 2009, to focus on the impact of cutaneous adverse reactions and drug-induced hypersensitivity in the management of postmenopausal osteoporosis. We prepared this position paper following these discussions, and include an algorithm for their recognition. METHODS: We reviewed cutaneous adverse reactions observed with antiosteoporotic agents, including information from case reports, regulatory documents, and pharmacovigilance. RESULTS: The cutaneous adverse reactions range from benign reactions including exanthematous or maculopapular eruption (drug rash), photosensitivity, and urticaria to the severe and potentially life-threatening reactions, angioedema, drug rash with eosinophilia and systemic symptoms (DRESS), Stevens Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN). Review of available evidence shows that cutaneous adverse reactions occur with all commonly used antiosteoporotic agents. Notably, there are reports of SJS and TEN for bisphosphonates, and of DRESS and TEN for strontium ranelate. These severe reactions remain very rare (<1 in 10,000 cases). CONCLUSION: With early recognition and proper management, including immediate and permanent withdrawal of the culprit agent, accompanied by hospitalization and rehydration and systemic corticosteroids if necessary, the prognosis is good. [less ▲]

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See detailTowards a European Consumer Construction Law?
Kohl, Benoît ULg

in International Construction Law Review (2010), 27(2), 211-241

If European action is necessary for the unification of liabilities in the European construction industry, it may be wiser to commence Community action by focusing on the specific interests of private ... [more ▼]

If European action is necessary for the unification of liabilities in the European construction industry, it may be wiser to commence Community action by focusing on the specific interests of private consumers rather than seeking to develop a European Code covering all aspects of private construction law. The aim of this paper is to explain my preference for this focused approach and, by comparing the current state of the Law in England and in France, to establish the points of convergence that could constitute the basis of European intervention in that field. I will specifically deal with the differing approaches taken by both countries to identical social problems. In conclusion, I suggest a dual approach to harmonisation in the housing construction sector. After having fixed, in a European legislative instrument, the objectives of the substantive minimal protection that every consumer should be able to enjoy across Europe, Member States should be encouraged to provide self-regulatory bodies – or potentially even one international self-regulatory body at the European level - for the attainment of these objectives. This “co-regulation” mechanism, applied to my comparative study of French and English consumer protection in the housing sector, suggests that very few modifications at a national level in both countries would be required to meet the suggested harmonisation. [less ▲]

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See detailComment j'explore une masse cervicale chez l'enfant
Costa de Araujo, Pedro ULg; Battisti, Oreste ULg

in Revue Médicale de Liège (2010), 65

The discovery of a cervical mass in a child suggests several possible diagnoses ranging from benign conditions to more severe pathologies, even cancer. Parents often worry and consult a physician when ... [more ▼]

The discovery of a cervical mass in a child suggests several possible diagnoses ranging from benign conditions to more severe pathologies, even cancer. Parents often worry and consult a physician when such a mass fails to regress after a few weeks. Palpation of small and solid lymph nodes is commonplace and generally trivial in children. A detailed clinical history and a careful examination often allow a distinction to be made between a benign and a serious condition. Additional tests are needed in case of doubt or in the prospect of reaching an precise aetiological diagnosis. These exams should be selected according to a decision algorithm. The investigation remains delicate. When the physician is convinced of the benign nature of the lymphadenopathy, there is no real need to identify the aetiology with the greatest precision, especially in acute cases with bilateral nodes that are commonly benign and spontaneously resolve. [less ▲]

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See detailMicrowave-assisted transformations of carbohydrates
Richel, Aurore ULg

Report (2010)

This reports deals with the involvment of microwaves for the conversion of renewable feedstocks, and in particlar for the tranfsormation of monosaccharides and cellulose into high added value materials.

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See detailVers une révision de la norme de production d'azote de la vache laitière : justification et conséquences sur le taux de liaison
Lambert, Richard; De Toffoli, M.; Dufrasne, Isabelle ULg et al

in Marcoen, Jean Marie; Vandenberghe, Christophe (Eds.) Acte de l'atelier "Nitrate - Eau" (2010)

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen ... [more ▼]

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen production in Walloon region is 90 kg per year. This standard is used to calculate the “soil link rate” of farms, a balance between the organic nitrogen to be spread on land and the quantity legally authorized considering grassland and arable land area. This standard is appreciably lower than that fixed by other member states and was criticized by the European Commission during the negotiations having ended in the second program of sustainable nitrogen management. Further to new studies, it seems that the gaseous loss of nitrogen averages in buildings and during the storage is weaker than the 15% value which was used to justify this 90 kg standard. It also seems that there are big differences of average dairy production and average rate of urea according to the agricultural regions and consequently that regional production standards correspond better to the reality. On basis of these mean values, the dairy cow’s annual productions of nitrogen vary between 81 kg per year in grassy region of Fagne and 99 kg per year in Haute Ardenne and in grassy region from Liege. For the Walloon region in general, the average production is 94 kg per year. The adoption of different values of dairy cow’s nitrogen production by region would lead to an increase of 8% of the soil link rate of dairy farms in Haute Ardenne and of 7% in grassy region from Liege and a decrease of 7% in grassy region of Fagne. [less ▲]

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See detailLe comportement suicidaire chez l'enfant
Malchair, Alain ULg

in Revue Médicale de Liège (2010), 65(2), 67-70

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See detailLa coopérative Crédal : rencontre de deux mondes
Bauwens, Thomas ULg

in Mertens de Wilmars, Sybille (Ed.) La gestion des entreprises sociales (2010)

La coopérative à finalité sociale « Crédal SC » constitue l’une des composantes du Groupe Crédal. Son action, menée en Wallonie et à Bruxelles, consiste à récolter de l’épargne afin de soutenir des ... [more ▼]

La coopérative à finalité sociale « Crédal SC » constitue l’une des composantes du Groupe Crédal. Son action, menée en Wallonie et à Bruxelles, consiste à récolter de l’épargne afin de soutenir des projets d’économie sociale et des particuliers dont l’accès au crédit bancaire classique est limité, et ce dans une optique solidaire, transparente et démocratique. Afin de s'adapter au mieux à la double qualité de ses membres – à la fois associés et utilisateurs –, Crédal a adopté des mécanismes de gouvernance spécifiques, à divers niveaux ; c'est sur ces mécanismes que nous nous penchons ici. Nous verrons aussi qu'en leur qualité d'usagers, les membres de Crédal poursuivent des objectifs qui vont bien au-delà de leur propre intérêt. En cela, Crédal est emblématique d'une tendance récente, au sein du monde coopératif, à un « élargissement » de la mission des coopératives à des objectifs d'intérêt général. [less ▲]

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See detailInfluence de la modalité visuelle sur l'évaluation acoustique de salles
Defays, Aurore ULg; Safin, Stéphane ULg; Billon, Alexis ULg et al

in Actes du 45ème congrès de la Société d'ergonomie de langue française. (2010)

Le projet AURALIAS vise à développer un environnement immersif permettant le travail coopératif entre architectes et acousticiens. Ce système associe donc un rendu sonore 3D et une vue du modèle 3D de la ... [more ▼]

Le projet AURALIAS vise à développer un environnement immersif permettant le travail coopératif entre architectes et acousticiens. Ce système associe donc un rendu sonore 3D et une vue du modèle 3D de la salle considérée. Dans ce cadre, nous nous intéressons à l’impact de l’image projetée sur le jugement subjectif de l’acoustique de la salle. 70 sujets ont été confrontés à une tâche de jugement du degré de réverbération d’un extrait sonore dans une situation contrôle (sans image) puis dans une situation expérimentale avec, pour la première partie des sujets, une image visant à soutenir le jugement (cohérente avec le son), pour la deuxième partie, une image « distractrice », et pour la troisième partie, sans image (groupe témoin). Nos résultats montrent une influence positive des images évocatrices et pas d’effet des images distractrices. [less ▲]

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