Suivi biologique du métabolisme phosphocalcique du patient dialysé: que nous apportent les guidelines du KDIGO en pratique?CAVALIER, Etienne ![]() Conference (2012, March 30) Detailed reference viewed: 9 (0 ULg) Intentionnalité de seDewalque, Arnaud ![]() Conference (2012, March 30) Le programme philosophique de Chisholm prétend constituer une alternative au programme mis en œuvre par Quine dans "Word and Object" (1960). Son ambition est de rendre compte de notre capacité à nous ... [more ▼] Le programme philosophique de Chisholm prétend constituer une alternative au programme mis en œuvre par Quine dans "Word and Object" (1960). Son ambition est de rendre compte de notre capacité à nous référer à des objets, non pas à partir d’un cadre prioritairement sémantico-linguistique (comme le fait Quine), mais à partir de ce que l’on appelle communément les « attitudes intentionnelles », telles que croire, désirer, espérer, etc. Chisholm défend ainsi ce qu’il appelle la « primauté de l’intentionnel », ce qui signifie en fait la primauté du point de vue mental sur le point de vue linguistique . Dans "The First Person" (1981), Chisholm développe une deuxième thèse bien plus ambitieuse et bien plus problématique: il soutient que toute référence mentale à un objet doit être construite comme une auto-référence, une référence à soi-même (thèse de la « primauté du personnel »). Je retrace ici la provenance brentanienne de cette thèse et je présente quelque difficultés de l'argumentation de Chisholm. [less ▲] Detailed reference viewed: 12 (1 ULg) Recent auroral discoveries with UVIS: bifurcations, small- scale structures and equatoward transient featuresRadioti, Aikaterini ; Grodent, Denis ; Gérard, Jean-Claude et alConference (2012, March 30) Detailed reference viewed: 3 (3 ULg) Global imbalances, Exchange Rates and Economic GrowthArtige, Lionel ; Conference (2012, March 29) Detailed reference viewed: 16 (1 ULg) Conclusions générales et perspectivesSeron, Vincent ![]() Conference (2012, March 29) Detailed reference viewed: 20 (6 ULg) Delayed graft function does not harm the future of donation-after- cardiac-death kidney transplants; WEEKERS, Laurent ; BONVOISIN, Catherine et alConference (2012, March 29) Introduction: Delayed graft function (DGF) occurs more frequently in kidney transplants from donation after cardiac death (DCD) than from donation after brain death (DBD). We investigated the effect of ... [more ▼] Introduction: Delayed graft function (DGF) occurs more frequently in kidney transplants from donation after cardiac death (DCD) than from donation after brain death (DBD). We investigated the effect of DGF on post-transplant outcomes in controlled DCD kidney grafts. Patients and Methods: This single-center retrospective study recruited 80 controlled DCD kidney allo- grafts which have been performed at the University Hospital of Sart Tilman, University of Liège, from Jan 2005 to Dec 2011. Results: Mean patient follow-up was 28.5 months. No primary non-function grafts were encountered. DGF rate was 36%. Overall graft survivals between groups with and without DGF were 92.4% and 95.1% at 1 year, 92.4% and 91.7% at 3 years, and 84.7% and 91.7% at 5 years (p=ns), respectively. Patients with and without DGF had the same survival rates at the corresponding time points (92.4% and 97.1%, 92.4% and 93.7%, and 84.7% and 93.7%, p=ns, respectively). Estimated glomerular filtration rate (eGFR) was significantly lower in DGF group compared to non-DGF group at hospital discharge (29 vs 42 ml/min, p=0.001) and up to 1 year post-transplant (46 vs 53 ml/min, p=0.045), but the differ- ence disappeared afterwards (50 vs 48 ml/min at 3 years, and 54 vs 53 ml/min at 5 years, p=ns). DGF did not increase the risk of acute rejection or surgical complications. 29.6% of recipients with DGF de- veloped acute rejection (biopsy-proven rejection and clinically suspected rejection) compared with 29.2% of recipients without DGF (p=ns). The rate of all surgical complications was 33.3% and 25% in recipients with and without DGF (p=ns). However, DGF prolonged significantly the length of hospitaliza- tion in DGF than non-DGF group (18.9 vs 13 days, p=0.000). Donor BMI 30 kg/m2 30 kg/m2 and pre-transplant dialysis duration increased the risk of DGF in a multivariate logistic regression analysis. Conclusions: Apart from longer hospital stay, DGF had no deleterious impact on the future of DCD kidney allografts. Comparable graft and patient survival, renal function, rejection rate and surgical com- plications were observed between groups with and without DGF. [less ▲] Detailed reference viewed: 15 (2 ULg) Neuromorphic reinforcement learningDethier, Julie ; ; Conference (2012, March 29) Living organisms are able to successfully perform challeng- ing tasks such as perception, classification, association, and control. In hope for similar successes in artificial systems, neuromorphic ... [more ▼] Living organisms are able to successfully perform challeng- ing tasks such as perception, classification, association, and control. In hope for similar successes in artificial systems, neuromorphic engineering uses neurophysiological models of perception and information processing in biological sys- tems to emulate their functions but also resemble their struc- ture [1]. In this abstract, we focus on the basal ganglia (BG), brain region in control of primitive functions of the nervous system, and specifically on their involvement in action selec- tion and reinforcement learning (RL). We hypothesize that neuromorphic-inspired systems will greatly benefit the RL community. [less ▲] Detailed reference viewed: 53 (17 ULg) Table ronde autour de "La séquence rouge italienne"Mancuso, Eva ![]() Conference (2012, March 29) Detailed reference viewed: 12 (5 ULg) La transgression de la norme dans la religion grecque antique : le cas de l'impiété (asebeia)Delli Pizzi, Aurian ![]() Conference (2012, March 29) Présentation diachronique du concept d'impiété dans la religion grecque antique Detailed reference viewed: 39 (7 ULg) Do common principles underlie the representation of order in STM and numerical judgment tasks?Attout, Lucie ; Majerus, Steve ![]() Conference (2012, March 29) Although many studies have explored magnitude effects in numerical cognition, the representation of order information has received only limited interest. We explored the hypothesis that common abstract ... [more ▼] Although many studies have explored magnitude effects in numerical cognition, the representation of order information has received only limited interest. We explored the hypothesis that common abstract ordinal representations underlie the representation of order information across different domains. We tested this hypothesis by determining the similarity of distance effects in short-term memory (STM) order probe recognition (did ‘8’ occur before ‘5’ in the list ‘3, 6, 5, 4, 8, 7’ presented a few seconds ago?) and in order judgment tasks (does ‘1’ occur before ‘2’), both numerical and alphabetical stimuli were used. In numerical cognition, adjacent numbers are typically judged more slowly than more distant numbers. In fifty healthy adults, we observed significant distance effects across all tasks: in the order judgment tasks, adjacent numbers/letters were judged more slowly than more distant numbers/letters; in the STM tasks, order recognition was slowed for stimuli stemming from adjacent positions in the STM list as compared to stimuli stemming from more distant positions. Regression slopes for distance effects were identical across the different tasks and conditions. Furthermore, the size of distance effects correlated significantly across tasks, except for the order judgment task with numerical stimuli. We will discuss the implications of these results for a hypothetical common representational system of order information in STM and numerical cognition. [less ▲] Detailed reference viewed: 13 (3 ULg) Striptease em raio-x: algumas interrelações artístico-científicas no domínio visual.Sturnack, Lionel ![]() Conference (2012, March 28) O striptease que propomos analisar é na verdade o título de uma obra que pertence à produção da artista italiana Benedetta Bonichi. Trata-se de uma composição mista, a meio caminho entre os raios-x e a ... [more ▼] O striptease que propomos analisar é na verdade o título de uma obra que pertence à produção da artista italiana Benedetta Bonichi. Trata-se de uma composição mista, a meio caminho entre os raios-x e a fotografia. “Striptease” constitui uma base analítica interessante para várias razões. Com certeza, por seu caráter surpreendente, sendo uma cena erótica e ao mesmo tempo uma radiografia. Mas também e sobretudo por sua estética particular em relação aos outros artistas que desenvolvem uma técnica similar. Uma parte do nosso estudo consistirá na abordagem indispensável mesmo que breve das realizações de quatro outros artistas que trabalham com os raios-x. O propósito de nossos passos é levar em consideração o lugar da obra estudada no espaço de realizações em raio-x artístico, numa perspectiva semiótica. Pretendemos desta maneira chegar à descrição fina de “Striptease”, ou seja, conseguir por um lado estabelecer os critérios sobre os quais se correlacionam e se diferenciam os raios-x artísticos vistos e, por outro lado e graças à primeira etapa, dar conta da riqueza da obra da italiana. Desenvolveremos o estudo segundo três etapas gerais. Com a primeira, efetuaremos uma descrição de “Striptease” segundo os três eixos da leitura plástica padrão, tal como foram trabalhados por Jean-Marie Floch: cromático, eidético e topológico. Na segunda etapa, adotaremos o mesmo ponto de vista para a descrição plástica de cinco obras de quatro outros artistas: Nick Veasey, a agência Butter, Wim Delvoye e Claudio Mubarac. O interesse da segunda parte consiste em mostrar que o tipo de descrição estabelecido para “Striptease” vale nos outros casos e como se atualizam as unidades plásticas em cada realização particular, a fim de observar as suas possíveis convergências. Na última etapa, poderemos considerar a estética de cada obra à luz das atualizações plásticas e das integrações entre elas com outros patamares temáticos. Conseguiremos, finalmente, entender a pertinência e a particularidade de “Striptease” como metalinguagem crítica por meio destas considerações temáticas e plásticas. [less ▲] Detailed reference viewed: 19 (2 ULg) Comment soutenir la transition vers un nouveau système de production pour l'habitat wallon ?Halleux, Jean-Marie ; Strée, Julie ![]() Conference (2012, March 27) Detailed reference viewed: 20 (7 ULg) Intérêt à identifier les calcifications intimales vs médiales dans la prévention de la mortalité cardio-vasculaire et cas cliniquesKrzesinski, Jean-Marie ![]() Conference (2012, March 27) Detailed reference viewed: 3 (0 ULg) Mercury in blood of free-ranging seals Phoca vitulina from the North Sea: Time-trend and association with environmental factorsDas, Krishna ; Brochoire, Charlène ; et alConference (2012, March 27) The harbour seal (Phoca vitulina) population from the North Sea has experienced various fluctuations these last decades due to habitat loss, prey fluctuation and pollution of the marine environment ... [more ▼] The harbour seal (Phoca vitulina) population from the North Sea has experienced various fluctuations these last decades due to habitat loss, prey fluctuation and pollution of the marine environment. Recently, development of monitoring programs and non-invasive sampling techniques, including seal catches allowed blood sampling on a regular basis together with measurements of blubber thickness, body mass, sex and body length. Concentrations of total mercury (T-Hg) and other trace elements (Cd, Pb, Zn, Cu, Fe) as well as ∂13C and ∂15N values were determined by mass spectrometry in blood of 75 wild harbour seals caught in the German Wadden Sea between 1997 and 2011. ∂13C and ∂15N mean values (-17.5‰ and 18.1 ‰ respectively) were strongly similar to that measured previously in the muscle of stranded harbour seals from the Wadden Sea. In contrast, ∂15N mean value was strikingly higher than that recorded in grey seals (Halichoerus grypus) from Scotland (14.1 ‰ respectively; Habran et al. submitted.) while ∂13C values remained similar between the two seal species. These values confirmed the high trophic position of the harbour seal in the North Sea. In contrast to Cd and Pb, T-Hg in blood harbour seals reached concentrations as high as 2.1 μg.g-1 dry weight (10 times higher than the 0.21 μg.g-1 dry weight recorded for grey seals from Scotland) but depended on several factors including ∂15N values, age group and the body mass. T-Hg was detected in juveniles confirming maternal transfer to offspring and time-trend revealed no decrease of T-Hg in blood of harbour seals these last 15 years. [less ▲] Detailed reference viewed: 70 (10 ULg) Intraocular Lenses with Functionalized Surfaces by Biomolecules in Relation with Lens Epithelial Cell AdhesionHuang, Yi-Shiang ![]() Conference (2012, March 27) A cataract is pathology opacity of the lens or capsule of the eye, causing impairment of vision or even blindness. In 1998, it was estimated that worldwide 19.4 million people were bilaterally blind from ... [more ▼] A cataract is pathology opacity of the lens or capsule of the eye, causing impairment of vision or even blindness. In 1998, it was estimated that worldwide 19.4 million people were bilaterally blind from age-related cataract. Surgery, with lens extraction and intraocular lens implantation, is still the only currently available treatment. More than 1.3 million cataract operations were performed in the USA in 1998 at a cost of $3.5 billion. The most common complication after implantation of intraocular lenses (IOLs) is the posterior capsular opacification (PCO) or secondary cataract. This is the result of lens epithelial cells (LECs) proliferation and their transition to mesenchymal cells. In 1997, a Sandwich theory was proposed to elucidate the developmental process of PCO. According to this model, an IOL with higher affinity to LECs will induce a less PCO. In our research, the pHEMA (Poly(2-hydroxyethyl methacrylate)) based acrylic hydrophilic polymer is subjected to the surface modification by conjugating with the bioactive peptides. The RGD sequence, known for its excellent biocompatibility, is designed to stimulate the biointegration between the LECs and the polymer implant. Our research program will focus on the evaluation of the physical, mechanical and biological properties of the lens before and after peptide grafting. These diverse tests include contact angle measurements, Atomic Force Microscopy (AFM), x-ray photoelectron spectroscopy (XPS), FTIR/ATR, Scanning Electron Microscopy (SEM), and the MTS cytotoxicity assay. [less ▲] Detailed reference viewed: 9 (5 ULg) Everybody knows what IRT is... (really?)Magis, David ![]() Conference (2012, March 27) Item response theory (IRT) is not only a famous acronym, it also covers a broad range of statistical and psychometric models, methods, and applications in psychology and educational science. However, IRT ... [more ▼] Item response theory (IRT) is not only a famous acronym, it also covers a broad range of statistical and psychometric models, methods, and applications in psychology and educational science. However, IRT looks somewhat misunderstood or even esoteric to the non-statisticians and non-psychometricians. The main goal of this talk is to briefly and clearly present the main aspects of traditional IRT: objectives, assumptions, basic models, and basic estimation methods. As a secondary purpose, extensions of IRT to more complex situations (polytomous data, multidimensional and hierarchical models, computerized adaptive testing, differential item functioning, nonparametric IRT) are briefly outlined. This talk will be as little technical as possible, focusing on the main concepts and applications of this theory. [less ▲] Detailed reference viewed: 18 (4 ULg) Relationships between structure-interfacial-functional properties: The rheology at interfaces from small to polymeric carbohydrate-based surfactantsRazafindralambo, Hary ![]() Conference (2012, March 25) Amphiphilc molecules are one of the most important compounds in our planet owing to their fundamental role as catalysts of interfacial free energy in nature, biological systems, and manufacturated ... [more ▼] Amphiphilc molecules are one of the most important compounds in our planet owing to their fundamental role as catalysts of interfacial free energy in nature, biological systems, and manufacturated products [1]. Their chemical structure and configuration, which governs their properties and activities, may be classified in small, intermediate, and large sizes. To better understand the effect of such a parameter, the behaviors of various carbohydrate-based surfactants, from small to polymeric molecular structures at the air-water interface, and in bulk liquid for their ability to form and stabilize related colloidal systems like micelles and foams have been investigated. In particular, rheological properties including elasticity and viscosity components at the air-water interface have been determined by oscillatiory mode under different oscillation frequency and surfactant concentration conditions using a pending drop tensiometer system. Their micellar and foaming properties have been characterized and evaluated in terms of CMC-micelle size and formation-stability, respectively. Reference: [1] Razafindralambo, H.; Blecker, C.; Paquot, M., Screening of Basic Properties of Amphiphilic Molecular Structures for Colloidal System Formation and Stability. In Amphiphiles: Molecular Assembly and Applications, Ed. R. Nagarajan, American Chemical Society: 2011;. Vol. 1070, pp 53-66. [less ▲] Detailed reference viewed: 23 (6 ULg) Un journal face à ses lecteurs étrangers : le cas des lecteurs belges du ‘Monde’ à travers les archives Beuve-MéryLanneau, Catherine ![]() Conference (2012, March 24) Detailed reference viewed: 10 (2 ULg) "L'acteur et le badaud. Sur deux corps de cinéma (années 1900)"Belloi, Livio ![]() Conference (2012, March 24) Le cinématographe – c’est une évidence – n’est pas né avec la notion d’acteur. L’acteur de cinéma est une instance qui s’est inventée progressivement, au registre de l’Histoire. Dans le cadre de cette ... [more ▼] Le cinématographe – c’est une évidence – n’est pas né avec la notion d’acteur. L’acteur de cinéma est une instance qui s’est inventée progressivement, au registre de l’Histoire. Dans le cadre de cette communication, j'examine quelques-unes des modalités d’émergence de cette figure singulière. Dans le premier cinéma de fiction, tel qu’il s’impose au cours des années 1900, l’acteur de cinéma, comme corps en jeu, entre virtuellement en concurrence, tout particulièrement en cas de tournage en plein air, avec celui qui fut l’homme ordinaire du cinéma des tout premiers temps, à savoir le badaud, qu’il finira évidemment par supplanter. Encore cette substitution ne s’est-elle pas opérée instantanément : elle présente, elle aussi, une dimension forcément historique. Partant de là, il s’agit d’examiner une forme de régime transitoire dans les relations mettant aux prises ces deux corps de cinéma que sont le badaud et l’acteur. Pour ce faire, l’accent est placé moins sur des films que sur des moments d’images (plans ou fragments de plan) puisés dans quelques films des années 1900, dont "Daring Daylight Burglary" (F. Mottershaw, Sheffield Photographic Company, 1903), "The Ex-Convict" (E. S. Porter, Edison, 1904) et "Mésaventures d’un cycliste myope" (Éclipse, 1907). Dans ces quelques moments d’images, la coprésence du badaud et de l’acteur témoigne d’un état hybride ou clivé de la scène de cinéma : un état dans lequel l’acteur, institué en foyer d’attention, n’est pourtant pas encore mis en situation de monopoliser l’espace de la représentation ; un état dans lequel il doit composer avec la présence incidente du badaud, lequel incarne exemplairement la part d’hétérogène qu’enferme, à ses origines, la scène de cinéma. [less ▲] Detailed reference viewed: 23 (1 ULg) Antidepressant use and fracture risk: a meta-analysisBruyère, Olivier ![]() Conference (2012, March 24) Detailed reference viewed: 12 (0 ULg) Les figures du compromis dans les sociétés islamiquesNachi, Mohamed ![]() Conference (2012, March 23) Analyser la place du compromis dans les sociétés et la culture islamique Detailed reference viewed: 13 (0 ULg) Health claims for nutriceuticals products in the field of cartilage and jointBruyère, Olivier ![]() Conference (2012, March 23) Detailed reference viewed: 2 (0 ULg) How to define responders in osteoarthritis?Bruyère, Olivier ![]() Conference (2012, March 23) Detailed reference viewed: 6 (0 ULg) Meet-The-Expert Sessions : Clinical utility of bone turnover markersCAVALIER, Etienne ![]() Conference (2012, March 23) Detailed reference viewed: 3 (0 ULg) Temporalité et "subjectivité" dans le Sein und Zeit de Martin HeideggerPieron, Julien ![]() Conference (2012, March 23) Detailed reference viewed: 10 (0 ULg) Novel perspectives in the definition of responders in trials of osteoarthritisBruyère, Olivier ![]() Conference (2012, March 23) Detailed reference viewed: 9 (0 ULg) Les TICe, quelle plus-value pour l’apprentissage ?Georges, François ![]() Conference (2012, March 23) Les cours en ligne sont-ils efficaces ? Dans l'affirmative, dans quelles conditions ? Dans cette allocution, nous présentons l'état de la recherche sur l'efficacité des cours en ligne. Nous passons en ... [more ▼] Les cours en ligne sont-ils efficaces ? Dans l'affirmative, dans quelles conditions ? Dans cette allocution, nous présentons l'état de la recherche sur l'efficacité des cours en ligne. Nous passons en revue les facteurs propices à l'apprentissage en ligne et les illustrons à travers des cours développés notamment à l'Université de Liège. Nous terminons notre exposé par une brève ouverture sur le monde du "mobile Learning" et tentons d'en présenter les plus-values par la présentation d'applications susceptibles de soutenir l'apprentissage. [less ▲] Detailed reference viewed: 83 (18 ULg) Les parlementaires québecois et wallonsDodeigne, Jérémy ![]() Conference (2012, March 23) Detailed reference viewed: 31 (4 ULg) Health claims in the field of joint and cartilage: the recommendations of the GREESBruyère, Olivier ![]() Conference (2012, March 23) Detailed reference viewed: 3 (0 ULg) La fédéralisation des allocations familiales et son impact sur la répartition des compétencesBehrendt, Christian ![]() Conference (2012, March 22) Communication orale donnée le 22 mars 2012 à "l'Université de printemps" organisée par La Ligue des Familles et consacrée à la défédéralisation projetée de la compétence des allocations familiales, telle ... [more ▼] Communication orale donnée le 22 mars 2012 à "l'Université de printemps" organisée par La Ligue des Familles et consacrée à la défédéralisation projetée de la compétence des allocations familiales, telle que décidée dans l'accord institutionnel du 11 octobre 2011. [less ▲] Detailed reference viewed: 68 (12 ULg) L'Éducation au cinéma en Belgique : analyse institutionnelle d'un territoire fragmentéVan Cauwenberge, Geneviève ![]() Conference (2012, March 22) Mon intervention entend constituer une contribution à l’histoire institutionnelle de l’enseignement du cinéma en Belgique francophone. Jusqu’ici l’histoire de l’enseignement du cinéma en Belgique s’est ... [more ▼] Mon intervention entend constituer une contribution à l’histoire institutionnelle de l’enseignement du cinéma en Belgique francophone. Jusqu’ici l’histoire de l’enseignement du cinéma en Belgique s’est surtout élaborée par le biais de l’évocation des personnalités marquantes qui en ont été les acteurs (c’est par exemple dans le cadre d’un texte consacré à André Delvaux que Paul Davay évoque les débuts de l’enseignement du cinéma en Belgique dans son ouvrage, Cinéma de Belgique). L’histoire institutionnelle de l’enseignement du cinéma reste, quant à elle, largement à écrire. La mise en place de l’enseignement du cinéma en Belgique est due à diverses instances: la Cinémathèque Royale de Belgique, le Ministère de la Communauté française, les écoles d’enseignement supérieur non-universitaire et les universités. On examinera le rôle respectif de chacune de ces instances en évoquant leurs divergences de vue mais aussi leurs diverses collaborations. Faisant retour à des textes fondateurs, tel le rapport rédigé en 1966 par Victor Bachy pour l’Unesco, on montrera comment les clivages entre enseignement laïc et confessionnel qui divisent le paysage scolaire francophone en Belgique se sont répercutés au niveau de l’enseignement du cinéma, contribuant à son éparpillement. On envisagera les conceptions respectives de la culture cinématographique et des finalités de l’enseignement du cinéma qui se sont développées dans chacun des réseaux d’enseignement. On verra aussi comment les diverses écoles et universités ont défini leur spécificité en matière de contenu d’enseignement et d’approche du cinéma (théorique, pratique, pratico/théorique) pour se positionner les unes par rapport aux autres dans le champ de l’enseignement du cinéma en Belgique. [less ▲] Detailed reference viewed: 17 (0 ULg) Vitamine D et diabèteCAVALIER, Etienne ; Conference (2012, March 22) Detailed reference viewed: 21 (0 ULg) Partnership in medicine : how to promote the collaboration between general practitioners, occupational physicians and social insurance physiciansMairiaux, Philippe ; Vanmeerbeek, Marc ; Schippers, Nathalie et alConference (2012, March 22) Introduction: Many situations justify a close collaboration between GP, OP and SIP. Health problems impact work activity and vice versa. An altered health situation confronts workers with the risk of ... [more ▼] Introduction: Many situations justify a close collaboration between GP, OP and SIP. Health problems impact work activity and vice versa. An altered health situation confronts workers with the risk of exclusion from the labour market. An interprofessional collaboration is thus needed to promote a more active policy of rehabilitation of workers on long term sickness absence. The Belgian Ministry of Employment initiated this study to identify communication channels and tools that could support collaboration among those health professionals. Methods: To this purpose, 8 nominal groups were organised to think about proposals to improve interdisciplinary collaboration. In sum 42 GP’s, 16 OP’s and 16 SIP’s participated in the discussions. For the elaboration of the final proposals, the research team relied on a multidisciplinary expert group. Results: An asymmetric relation was observed; each group expressed the need to receive information from the two others, but proposals to transfer information were rare. Exchanges in the groups showed that reciprocal ignorance is important and communication modalities are poor. A profound revision of the information transmission procedures seemed necessary. Several practical proposals were made to improve communication in case of sickness absence over three months, to allow information transfer and to promote mutual respect between the three disciplines. Other proposals considered professional training, and professional competencies which need to be better defined. Discussion: Misconceptions of the role of the different professional disciplines form a barrier to an effective collaboration. Technical and regulatory measures alone will not bring about a real promotion of interdisciplinary collaboration. The proposals arising from the study will contribute to increase reciprocal knowledge between professionals from the three disciplines and thus form the basis of a more effective collaboration. In turn, the experience of collaboration could have a beneficial effect on the reciprocal representations of each partner role. [less ▲] Detailed reference viewed: 23 (10 ULg) The connection between inner and outer debris disks probed by infrared interferometryAbsil, Olivier ![]() Conference (2012, March 22) The far-infrared surveys of nearby main sequence stars performed since the launch of IRAS have shown that a significant fraction of main sequence stars are surrounded by cold dust populations. These ... [more ▼] The far-infrared surveys of nearby main sequence stars performed since the launch of IRAS have shown that a significant fraction of main sequence stars are surrounded by cold dust populations. These surveys are now culminating with the the DUNES and DEBRIS key projects of the Herschel Space Observatory, which is more sensitive than ever and is able to detect cold dust populations with densities similar to that of the solar system Kuiper belt. However, little is known about the occurence of warm dust populations, the equivalent of our zodiacal cloud. Since 2005, high-precision infrared interferometers have opened a new way to directly resolve these exozodiacal dust populations. Interferometric observations enable to reach dynamic ranges (larger than 100:1) that are generally not achievable with classical spectro-photometric observations. We are currently carrying out a survey to characterise the hot dust populations around main sequence stars. The first results of this survey, performed on the CHARA array with the FLUOR instrument, will be presented in this talk. The results are based on a magnitude-limited sample of stars surrounded by cold dust and on an equivalent sample of stars showing no cold dust emission. The statistics for the occurence of bright exozodiacal disks will be presented, and compared with the Spitzer and Herschel results. The possible (dynamical) connections between the two populations will be discussed. We will also review the results obtained by other interferometers and discuss the on-going projects. [less ▲] Detailed reference viewed: 14 (1 ULg) From universal to local: celebrating new saints in the Southern NetherlandsDelfosse, Annick ![]() Conference (2012, March 22) Detailed reference viewed: 16 (2 ULg) Reforming the Postal Universal ServiceGautier, Axel ; Conference (2012, March 22) The postal sector has dramatically changed in the recent years with the ongoing liberalization process and the increased competitive pressures from alternative communication channels (e-substitution ... [more ▼] The postal sector has dramatically changed in the recent years with the ongoing liberalization process and the increased competitive pressures from alternative communication channels (e-substitution). These two effects concur to decrease the mail volume handled by the historical operator which in turn may threaten the financial viability of the universal service and may call for a reform of the universal service. This paper examines the question of reforming the postal universal service, first by considering that the universal service remains confined in the postal word and, latter, by defining a universal service that includes postal and electronic technologies. [less ▲] Detailed reference viewed: 17 (3 ULg) Rickert On Historical Sciences: A Critical AppraisalDewalque, Arnaud ![]() Conference (2012, March 22) In this talk I discuss a significant objection that has been raised against the view of historical sciences held by Heinrich Rickert: the accusation of “fruitless formalism”. This accusation has been ... [more ▼] In this talk I discuss a significant objection that has been raised against the view of historical sciences held by Heinrich Rickert: the accusation of “fruitless formalism”. This accusation has been expressed by a large number of thinkers, including for instance Wilhelm Wundt, Edmund Husserl, Max Frischeisen-Köhler and Eduard Spranger. As one knows, Rickert answered the objection in the last editions of his major book, "The Limits of the Concept Formation in Natural Sciences". His strategy was, first, to distance himself from a certain interpretation I will call the “formal view”, and, second, to argue for the fruitfulness of his own, more sophisticated view. However, as suggested by other representatives of the Bade School (like Richard Kroner), it is doubtful that the Rickert view perfectly succeeded in resorbing the shortcomings of the formal view. - In the first, introductive section I will put the formalism-problem in connection with a definite sub-set of issues within the broader framework of the philosophy of history (1). In the second and third sections I will address two questions related, respectively, to the nature of historical form (2) and to the nature of historical material (3). I will then contrast the formal view with the Rickert view on the one hand and with Kroner’s contentual view on the other hand. In the last, conclusive section I will try to draw some general implications of the formalism-controversy (4). [less ▲] Detailed reference viewed: 19 (1 ULg) Development of diamond AGPM coronagraphs for VISIR and NACODelacroix, Christian ; Habraken, Serge ; et alConference (2012, March 22) Detailed reference viewed: 19 (1 ULg) Statut unique : la fin d’une époque?Pichault, François ![]() Conference (2012, March 21) Detailed reference viewed: 11 (0 ULg) 3-D cinéma : Quelques reliefs du discours du cinéma totalTomasovic, Dick ![]() Conference (2012, March 21) Detailed reference viewed: 9 (2 ULg) Examen clinique de l'épauleKaux, Jean-François ![]() Conference (2012, March 21) Detailed reference viewed: 24 (9 ULg) Participation à la Table ronde autour du livre de Claude Romano Au cœur de la raison, la phénoménologieGyemant, Maria ![]() Conference (2012, March 20) Detailed reference viewed: 2 (0 ULg) Questions à Claude RomanoDewalque, Arnaud ![]() Conference (2012, March 20) Texte de mon intervention lors de la table-ronde autour de l'ouvrage de Claude Romano, "Au coeur de la raison, la phénoménologie" (Paris, Gallimard, 2010). Sont discutés le concept de "phénoménologie", l ... [more ▼] Texte de mon intervention lors de la table-ronde autour de l'ouvrage de Claude Romano, "Au coeur de la raison, la phénoménologie" (Paris, Gallimard, 2010). Sont discutés le concept de "phénoménologie", l'opposition internalisme/externalisme et l'idée du caractère herméneutique de la phénoménologie. [less ▲] Detailed reference viewed: 30 (1 ULg) La Carte des Sols de la Belgique, outil d'estimation de la pression urbanistique sur les solsLegrain, Xavier ; Michel, Brieuc ; Bock, Laurent et alConference (2012, March 20) Ces dernières décennies, des pressions de tout ordre ont induit une forte expansion de l’urbanisation en Europe, à laquelle la Belgique n’échappe pas. L’imperméabilisation des sols a par ailleurs été ... [more ▼] Ces dernières décennies, des pressions de tout ordre ont induit une forte expansion de l’urbanisation en Europe, à laquelle la Belgique n’échappe pas. L’imperméabilisation des sols a par ailleurs été identifiée comme une des principales menaces pesant sur eux. Au-delà du constat de l’évolution des surfaces artificialisées en Wallonie, l’objectif de cette étude est d’identifier les sols les plus soumis à ce phénomène. L’élaboration de la Carte Numérique des Sols de Wallonie (CNSW) – à partir d’un document historique, la Carte des Sols de la Belgique levée à grande échelle entre 1947 et 1991 – et de la Carte Numérique d’Occupation des Sols de Wallonie ouvre des perspectives intéressantes à ce sujet. Plus spécifiquement, l’utilisation de cartes d’aptitude des sols pour l’agriculture, dérivées de la CNSW, met en évidence l’impact de l’artificialisation sur la réserve en sols de meilleure potentialité agricole (figure 1). Cette dernière a diminué de 5 % à l’échelle de la Wallonie suite à l’artificialisation des sols ces 60 dernières années. La réalité est plus contrastée à l’échelle locale. La moitié des 262 communes wallonnes se situe en deçà, tandis que d’autres ont perdu (du point de vue agricole) jusqu’à 50 % de leurs meilleurs sols, par ailleurs initialement fortement présents sur leur territoire. Autre constat : si la moitié des communes subit une artificialisation uniforme de ses sols, 20 % d’entre elles voient leurs meilleurs sols préférentiellement artificialisés par rapport à ceux de potentialité agricole moindre.Une analyse spatiale fine à plus grande échelle (figure 2) ouvre la voie à la compréhension des phénomènes en jeu et in fine à l’élaboration de recommandations face à la concurrence inévitable entre deux fonctions essentielles des sols : la production agricole et le support des activités humaines. [less ▲] Detailed reference viewed: 29 (6 ULg) A Two Parameter Kinematic Theory for the Shear Behavior of Deep BeamsMihaylov, Boyan ; ; Conference (2012, March 19) Detailed reference viewed: 14 (2 ULg) Drowsiness monitoring: a matter of life and death !Wertz, Jérôme ; François, Clémentine ; Verly, Jacques ![]() Conference (2012, March 19) Detailed reference viewed: 26 (15 ULg) Prevalence of burnout among Belgian workers assessed through the occupational healthcare systemMairiaux, Philippe ; Schippers, Nathalie ; DE CIA, Julie et alConference (2012, March 18) Detailed reference viewed: 28 (7 ULg) Comment mieux concilier le Sport et l’Education ?Cloes, Marc ![]() Conference (2012, March 17) Nombre d'articles parus dans des quotidiens soulignent qu'une plus grande place devrait être faite au Sport dans l'Education. Dans cette conférence, il s'agira tout d'abord de redéfinir les différents ... [more ▼] Nombre d'articles parus dans des quotidiens soulignent qu'une plus grande place devrait être faite au Sport dans l'Education. Dans cette conférence, il s'agira tout d'abord de redéfinir les différents concepts concernés avant de mettre en évidence certains paradoxes constatés à partir de résultats de recherches récentes. L'objectif consistera à mettre clairement en évidence la priorité à accorder au développement d'une culture de l'activité physique, moins sujettes aux dérapages constatés actuellement dans le développement d'un sport ultra compétitif. L'exposé se termine par la description de pistes d'actions rassemblant tous les acteurs de la société et visant à donner un visage plus accessible à la santé que l'activité physique permet de préserver. [less ▲] Detailed reference viewed: 40 (5 ULg) Strategic Bypass Deterrence; Gautier, Axel ![]() Conference (2012, March 17) In liberalized network industries, entrants can either compete for service using the existing infrastructure (access) or deploy their own infrastructure capacity (bypass). In this paper, we demonstrate ... [more ▼] In liberalized network industries, entrants can either compete for service using the existing infrastructure (access) or deploy their own infrastructure capacity (bypass). In this paper, we demonstrate that, under the threat of bypass, the access price set by an unregulated and vertically integrated incumbent is compatible with productive efficiency. This means that the entrant bypasses the existing infrastructure only if it can produces the network input more efficiently. The incumbent lowers the access price compared to the ex-post efficient level to strategically deter inefficient bypass by the entrant. Accordingly, from a productive efficiency point of view, there is no need to regulate access prices when the entrant has the option to bypass. Despite that, we show that restricting the possibilities of access might be profitable for consumers. [less ▲] Detailed reference viewed: 2 (0 ULg) Insuffisance rénale de la personne âgéeKrzesinski, Jean-Marie ![]() Conference (2012, March 17) •L’insuffisance rénale avec l’âge n’est pas une fatalité. •Une prévention des FRCV est indispensable. •Une identification précoce d’une réduction de GFR (mesure précise GFR?) et de la présence d’une ... [more ▼] •L’insuffisance rénale avec l’âge n’est pas une fatalité. •Une prévention des FRCV est indispensable. •Une identification précoce d’une réduction de GFR (mesure précise GFR?) et de la présence d’une protéinurie est capitale. •Approche multidisciplinaire et précoce surtout chez le sujet âgé! Tester autonomie et dénutrition. •Référence précoce pour décider ensemble si évolutivité et SN traitement de suppléance. •Décider de lancer un traitement de suppléance nécessite une réflexion à plusieurs: le patient, sa famille, le médecin de famille, l’équipe de néphrologie en abordant la QOL •On peut tenter si doute, avec arrêt dès que la situation s’aggrave! [less ▲] Detailed reference viewed: 7 (3 ULg) Insuffisance rénale de la personne âgéeKrzesinski, Jean-Marie ![]() Conference (2012, March 17) L’insuffisance rénale avec l’âge n’est pas une fatalité. Il faut prévenir très tôt les facteurs de risque cardio-vasculaire et les corriger au mieux pour éviter que ces facteurs n’agissent plus tard dans ... [more ▼] L’insuffisance rénale avec l’âge n’est pas une fatalité. Il faut prévenir très tôt les facteurs de risque cardio-vasculaire et les corriger au mieux pour éviter que ces facteurs n’agissent plus tard dans la vie et soient des facteurs de comorbidité très importants favorisant la dégradation fonctionnelle rénale et l’évolution vers une insuffisance rénale très sévère exposant le patient à un risque cardio-vasculaire, à des techniques de suppléance de la fonction rénale et à un décès plus rapide avec perte préalable de la qualité de vie. Il faut donc identifier précocement la réduction de la GFR et l’apparition d’une protéinurie, agir de concert ensemble sur de nombreux facteurs pour ralentir la progression. Ces facteurs sont souvent des facteurs de risque cardio-vasculaire, donc on fait un double coup en les corriger. La référence précoce lorsque vous remarquez une évolutivité de la GFR vers la baisse pour décider ensemble si un traitement de suppléance doit être lancé. Celui-ci ne sera décidé qu’en concertation commune si nous avons le temps de l’établir après avoir évaluer des niveaux d’autonomie de nutrition, de risque cardio-vasculaire, et tout cela intégré dans le côté social et environnemental du patient. Il faut rappeler ici l’importance des trajets de soins à proposer à tout patient insuffisant rénal en dessous de 45 ml/min, moment stratégique pour que le néphrologue puisse en partenariat avec le médecin généraliste contrer les perturbations de l’insuffisance rénale terminale. [less ▲] Detailed reference viewed: 18 (5 ULg) Social Cooperatives: When Social Enterprises Meet the Cooperative TraditionDefourny, Jacques ![]() Conference (2012, March 16) Detailed reference viewed: 8 (0 ULg) "Frottements d'images : les films tardifs de Paul Sharits"Belloi, Livio ![]() Conference (2012, March 16) La notion de friction implique forcément celle de contact, ce qui, à l’évidence, intéresse au tout premier chef les images à caractère photochimique. Dans le cadre de cette communication, j'interroge la ... [more ▼] La notion de friction implique forcément celle de contact, ce qui, à l’évidence, intéresse au tout premier chef les images à caractère photochimique. Dans le cadre de cette communication, j'interroge la notion de friction dans le champ du cinéma d’expérimentation, en me concentrant plus particulièrement sur les films du cinéaste (et peintre) américain Paul Sharits (1943-1993). À partir de "Color Sound Frames" (1974), l’œuvre de Sharits connaît une mutation profonde. Pour une large part, le travail du cinéaste consistera désormais à refilmer des fragments de pellicule déjà impressionnés, images appartenant de facto à la catégorie du déjà-vu. Pour ce faire, Sharits mobilise un écran transparent et un projecteur trafiqué, dont il a ôté et la griffe, et le mécanisme d’obturation. Retournant l’une contre l’autre les deux machines sur lesquelles se fonde le spectacle cinématographique, procédant par « anti-cadrage » et reprise de vue, le cinéaste orchestre, au plus intime de ses œuvres, d’intenses rapports de friction entre le film second (ou film filmé) et le film premier (ou film d’accueil, celui qui se déroule sous nos yeux) ; il accuse, de manière très méthodique, les discordances qui affectent les deux niveaux de la représentation, que ce soit en termes de vitesse, de texture ou de stabilité des motifs. Ma communication se donne pour but d’étudier, dans tous ses enjeux, les frictions internes qui traversent les films tardifs de Paul Sharits, dont "Tails" (1976) et "Bad Burns" (1982). Dans le cas de ce dernier film, le rapport de friction s’exacerbe, se déporte et tourne au conflit ouvert entre l’image et la source lumineuse censée lui donner vie : il se solde ponctuellement par des destructions apparentes du support filmique, petits désastres figuratifs qui ont paradoxalement valeur, selon Sharits, d’actes analytiques à part entière. [less ▲] Detailed reference viewed: 25 (0 ULg) Literary mediations, imaginaries and sociological approachesSaint-Amand, Denis ; Conference (2012, March 16) Detailed reference viewed: 11 (3 ULg) Biomarkers of renal diseaseCAVALIER, Etienne ![]() Conference (2012, March 15) Detailed reference viewed: 4 (0 ULg) Use of microbial biosensors to detect substrate heterogeneities at the single cell level and assess microbial viability: Validation of a mini-bioreactor platformBrognaux, Alison ; ; Twizere, Jean-Claude et alConference (2012, March 15) The basic principle adopted in our studies is to use substrate limitation responsive biosensors in order to detect spatial glucose heterogeneities inside industrial bioreactors (whole-cell biosensor ... [more ▼] The basic principle adopted in our studies is to use substrate limitation responsive biosensors in order to detect spatial glucose heterogeneities inside industrial bioreactors (whole-cell biosensor). Indeed, such heterogeneities cause a lowering of the biomass yield and an increase of by-products concentration. In this work, we have used these biosensors for the elaboration of a mini-bioreactor platform that can be used as a scale-down tool. Three green fluorescent protein (GFP) transcriptional reporters have been chosen in Escherichia coli, i.e. uspA::gfp, csiE::gfp and yciG::gfp. Our previous studies have shown that these kinds of promoters are induced in response of substrate limitation and exhibit a strong fluorescence attenuation when cultivated in heterogeneous bioreactors. This sensitivity to substrate limitation has been confirmed in the case of the csiE and yciG biosensors. A mini scale-down platform has been proposed as a high throughput tool to investigate rapidly the usefulness of a given microbial biosensor. This platform is composed of shake flask able to operate in fed-batch mode either by using the slow release or the intermittent feeding principle. The first system is based on a commercial package (Enbase) based on the enzymatic release of glucose in the medium. The Enbase system allows the generation of a very smooth glucose profile without any perturbations. For comparison purpose, we have also used an intermittent feeding that induces strong fluctuation at the level of the glucose and the dissolved oxygen concentration. Local heterogeneities have thus been reproduced at the level of these mini-bioreactors and these one have caused a decrease of GFP expression, as in conventional scale-down reactor. The presence of GFP in supernatants has also been noticed and seems to be correlated with the substrate limitation signal for the three cultivation systems considered in this work (i.e., chemostat, conventional and mini-bioreactors) and with the membrane permeability. [less ▲] Detailed reference viewed: 36 (12 ULg) Possibilités et limites des nez électroniques pour la mesure des odeurs.Nicolas, Jacques ; Conference (2012, March 15) The communication aimed at presenting the potential of electronic noses to monitor environmental odours. The advantages and the limits of the concept were presented together with the point of view of a ... [more ▼] The communication aimed at presenting the potential of electronic noses to monitor environmental odours. The advantages and the limits of the concept were presented together with the point of view of a company specialized in odour measurement. [less ▲] Detailed reference viewed: 7 (3 ULg) L’acte chorégraphique dans le cinéma d’animation. Images composites, corps hybrides et mouvements extravagantsTomasovic, Dick ![]() Conference (2012, March 15) Detailed reference viewed: 20 (3 ULg) “The train to my hometown, A look at the representation of rural migrant workers”,Florence, Eric ![]() Conference (2012, March 14) Detailed reference viewed: 11 (3 ULg) Sensitivity of the Oxygen Dynamics in the Black Sea North Western Shelf to physical and biogeochemical processes : 3D model approachCapet, Arthur ; Beckers, Jean-Marie ; Grégoire, Marilaure ![]() Conference (2012, March 13) The presentation evidences the role of benthic oxygen consumption in the seasonal hypoxia afecting the Norht western shelf of the Black Sea. Spatial variability of related processes is evidenced and ... [more ▼] The presentation evidences the role of benthic oxygen consumption in the seasonal hypoxia afecting the Norht western shelf of the Black Sea. Spatial variability of related processes is evidenced and finally interanual variability of hypoxia severity is quantified and related to nitrogen riverine inputs. [less ▲] Detailed reference viewed: 12 (1 ULg) The long period eccentric orbit of the particle accelerator HD167971 revealed by long baseline interferometryDe Becker, Michaël ![]() Conference (2012, March 12) Particle acceleration and non-thermal emission processes in colliding-wind massive binaries constitute key issues in massive stars physics. The investigation of such processes requires a good knowledge of ... [more ▼] Particle acceleration and non-thermal emission processes in colliding-wind massive binaries constitute key issues in massive stars physics. The investigation of such processes requires a good knowledge of their stellar, stellar wind and orbital parameters. In this short contribution, I will present the latest results related to the case of HD167971, a system recently resolved by the VLTI. The information on the separation and on the luminosity ratio derived from these observations will also be discussed in the context of the so-called 'standard scenario' for particle acceleration and non-thermal processes in massive stars. [less ▲] Detailed reference viewed: 14 (1 ULg) An overview of the CAT: framework, R package, and applicationsMagis, David ![]() Conference (2012, March 12) Computerized adaptive testing (CAT) is an efficient method to administer psychometric or educational tests and questionnaires. Unlike the standard fixed (“paper-and-pencil”) tests, items in a CAT are ... [more ▼] Computerized adaptive testing (CAT) is an efficient method to administer psychometric or educational tests and questionnaires. Unlike the standard fixed (“paper-and-pencil”) tests, items in a CAT are iteratively and optimally selected within a bank of available items, on the basis of previously administered items and the current ability estimate of the examinee. This general approach has several assets with respect to fixed tests: it reduces the risk of fraud, it allows for individualized questionnaires according to the examinee’s ability level, and fewer items must be administered to reach the same level of precision in the ability estimates. The purpose of this talk is threefold. First, a general overview of CAT is proposed and its main principles are quickly outlined. Second, a recently developed R package, called catR, is briefly presented and its functionalities are described. Finally, two applications are discussed. The first application is a live demonstration of catR, by using its by-default item bank about English aptitude assessment, and several CAT options. The second application focuses on the on-line testing platform Concerto, a web interface for the development and testing of CAT sessions that uses catR as underlying computational package. The R package catR was jointly developed with Gilles Raîche (Université du Québec à Montréal, Canada). The platform Concerto is under development by The Psychometrics Centre (Cambridge University, UK) under the supervision of Michal Kosinski and John Rust. [less ▲] Detailed reference viewed: 24 (3 ULg) Posterior cerebral artery duplication and plasty of the right third cranial nerveSALADO, Anne-Laure ; SCHOLTES, Félix ; OTTO, Bernard et alConference (2012, March 10) Detailed reference viewed: 12 (3 ULg) Solitary fibrous tumour of the vagus nerveSCHOLTES, Félix ; ; Martin, Didier ![]() Conference (2012, March 10) Detailed reference viewed: 3 (1 ULg) Third ventricle colloid cystsREUTER, Gilles ; SCHOLTES, Félix ; LENELLE, Jacques et alConference (2012, March 10) Detailed reference viewed: 13 (0 ULg) Long-term evaluation of spinal cord stimulation for neuropathic/vascular pain; Kaschten, Bruno ; DUBUISSON, Annie et alConference (2012, March 10) Detailed reference viewed: 19 (7 ULg) Opinion publique et nucléaire : critique et dépassementMormont, Marc ![]() Conference (2012, March 10) Detailed reference viewed: 16 (3 ULg) Moyens et enjeux d'une approche didactique des IlluminationsSaint-Amand, Denis ![]() Conference (2012, March 10) Detailed reference viewed: 3 (2 ULg) Review of M-I coupling and auroral emissions at the outer planetsGrodent, Denis ![]() Conference (2012, March 09) The bulk morphology of Jupiter's and Saturn's UV aurorae is conveniently divided into three components: 1) the main emission (main oval), 2) the satellites auroral footprints (equatorward of the main ... [more ▼] The bulk morphology of Jupiter's and Saturn's UV aurorae is conveniently divided into three components: 1) the main emission (main oval), 2) the satellites auroral footprints (equatorward of the main emission): Io, Europa and Ganymede for Jupiter and Enceladus for Saturn, 3) the polar emissions (poleward of the main emission).This schematic view is already providing useful information on the giant planets aurorae. However, a quick inspection of HST and Cassini UV images directly shows that this simplified classification does not really match the complex morphology of the auroral emissions. As an example, in the case of Jupiter's UV aurorae, it appears that the main emission is not forming an oval, not even a closed shape; it is far from uniform and its position and size vary with time and depend on the viewing geometry. A secondary emission appears equatorward of the main emission and many small scale features regularly appear, some of them periodically. Satellites auroral footprints themselves appear to be much more intricate than predicted by present models. These footprints are actually multiple, their location and number vary periodically with time and with the satellites orbital longitude. The polar emissions are also much more complicated than predicted. Each of the above effects is related to a specific physical phenomenon in the atmosphere, the magnetosphere, or even in the planet's interior. For instance, the spatial distribution of the satellites auroral footprints made it possible to demonstrate the existence of a magnetic field anomaly near the surface of Jupiter's northern hemisphere. Observations which might appear insignificant, like the multiplicity of the satellites footprints or their periodicity are actually extremely valuable because they reveal the complexity of the interaction, in this case between a moon and the magnetospheric plasma of the planet around which it is orbiting. The same applies to small scale auroral structures which depict crucial magnetospheric processes like hot plasma injection, flux-tube interchange or magnetic reconnection mechanisms. The growing HST and Cassini databases are shedding new light on the origin of Jupiter's and Saturn's aurorae. Mechanisms that we thought could be taken for granted may even be challenged. [less ▲] Detailed reference viewed: 10 (2 ULg) Analysis of virgin olive oil volative fraction from two distinct geographical areas of eastern Morocco; ; et al Conference (2012, March 09) Detailed reference viewed: 20 (2 ULg) De l'analyse des sources à l'analyse textuelle : les chapitres 115, 116 et 117 de l'Essai sur les mœursTilkin, Françoise ![]() Conference (2012, March 08) Detailed reference viewed: 8 (2 ULg) Une approche par compétences : Introduction, bénéfices et écueils – Illustrations par le cas de l’ULg -Poumay, Marianne ![]() Conference (2012, March 08) Dédiée à un public d'enseignants-chercheurs majoritairement français, cette conférence abordait l'intérêt du concept de compétence pour décrire des programmes dans l'enseignement supérieur, mais aussi ... [more ▼] Dédiée à un public d'enseignants-chercheurs majoritairement français, cette conférence abordait l'intérêt du concept de compétence pour décrire des programmes dans l'enseignement supérieur, mais aussi pour les ré-organiser et pour y mettre en œuvre des méthodes innovantes et clairement centrées sur l'apprentissage des étudiants. La question de l'évaluation de ces compétences y a aussi été effleurée. [less ▲] Detailed reference viewed: 57 (8 ULg) Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010Lang, Charlotte ![]() Conference (2012, March 07) It is well known that high latitude zones are very sensitive to climate change. As a result of global warming, ice sheet melting has increased which in turn has an influence on climate through modifications ... [more ▼] It is well known that high latitude zones are very sensitive to climate change. As a result of global warming, ice sheet melting has increased which in turn has an influence on climate through modifications of the thermohaline circulation, feedback of ice albedo, sea level rise,. . . Svalbard is an archipelago located between 74 and 81◦ lat N and 60 percent of its area (62 248 km2 ) is covered with glaciers and ice sheets. The impact of global warming on the Svalbard cryosphere can be estimated with climate models. However, we need to use regional climate models as they offer the possibility of a higher resolution than general circulation models. We have carried out a simulation of the Svalbard climate over the last 50 years (from 1958 to 2010) with the regional climate MAR model (tuned for the Greenland ice sheet) at a 10 km resolution forced with the ECMWF reanalysis. As validation, the modeled climate has been compared to near surface measurements at several weather stations through the archipelago. The results show a large interannual variability of the surface mass balance over Svalbard along with an increasing melting. The increase in temperature is responsible for the melting rate and the interannual variability is due to the variations of the mean summer temperature. [less ▲] Detailed reference viewed: 8 (2 ULg) Evolution des dépenses alimentaires en produits d'origine animale des ménages wallonsComps, Samuel ; Winandy, Stéphane ; Palm, Rodolphe et alConference (2012, March 07) Detailed reference viewed: 4 (2 ULg) Faut-il qu'existe une communauté de traducteurs ?Servais, Christine ![]() Conference (2012, March 07) Detailed reference viewed: 15 (5 ULg) Images de la Vierge dans les Pays-Bas méridionaux : espace et tempsDelfosse, Annick ![]() Conference (2012, March 06) Detailed reference viewed: 39 (1 ULg) Sources d’information médicale et recherche et gestion des référencesPasleau, Françoise ![]() Conference (2012, March 02) Detailed reference viewed: 11 (5 ULg) Modelling European tree species distribution change over the HoloceneDury, Marie ; ; et alConference (2012, March 01) The postglacial re-colonization of Europe by temperate tree species from a few glacial refugia during the Holocene (10,000 BP) is a very interesting case to study the mechanisms of the vegetation dynamics ... [more ▼] The postglacial re-colonization of Europe by temperate tree species from a few glacial refugia during the Holocene (10,000 BP) is a very interesting case to study the mechanisms of the vegetation dynamics. The relative roles that played the climate conditions, the species dispersal capacities and the competition between species in the re-colonization rates remain controversial. We investigate these different aspects with the CARAIB dynamic vegetation model (CARAIB DVM). Transient runs were performed over the Holocene using the HadCM3 AOGCM-reconstructed climate. European-wide species migration at 0.5° x 0.5° is represented in the model using migration rates derived from a high resolution cellular automaton, CATS-UPSCALE. Individual tree species migration rates were pre-calculated with CATS-UPSCALE every 1000 years over each grid cell used by the DVM in the climatic conditions reconstructed by the AOGCM. The impacts of competition on plant dispersal are not taken into account by the automaton. Thus, in CARAIB, a function has been constructed to reduce the potential CATS migration rates in competition conditions. It is based on the species dispersal kernel and on the net primary productivity of the different species present on the grid cell. The migration of one species, from its 10,000 BP refugia, is studied within a landscape defined by a set of other species for which no dispersal limitations are assumed. Here, we illustrate the results obtained for two wind-dispersed (Abies alba and Picea abies) and for a no wind-dispersed (Fagus sylvatica) tree species. The speeds and the paths of the postglacial spread obtained with the DVM are compared to the past distributions of the three species reconstructed from pollen and macrofossil data. The Holocene climate conditions simulated by the HadCM3 AOGCM do not constrain the European re-colonization of the studied species, except in Scandinavia at the beginning of the period for Picea abies. We observe that, during the past 10,000 years, species occupied regions where climate conditions were different from present observed species climate requirements, notably in the 10k species refugia. This result may imply that at present the species do not occupy their potential distribution area and thus that the postglacial re-colonization is not completed yet. We also show that species dispersal capacities cannot explain the observed species migration over the Holocene and that competition has played an important role. Indeed, when we use the potential migration rates (no competition), species spread too fast. [less ▲] Detailed reference viewed: 30 (4 ULg) Technique(s), médiation et politique - entre Latour, Marx et HeideggerPieron, Julien ![]() Conference (2012, March 01) Detailed reference viewed: 5 (0 ULg) médiation, technique, communicationServais, Christine ![]() Conference (2012, March 01) Detailed reference viewed: 18 (4 ULg) A climate model from 80 AD to 1350 AD for the Hautes Fagnes plateau (Belgium), based on pollen grains, testate amoebae and humification analyses. Application of the model to Subatlantic palaeolandslides in the Pays de Herve (eastern Belgium).; Demoulin, Alain ; Gerrienne, Philippe et alConference (2012, March 01) Detailed reference viewed: 16 (4 ULg) Quel est l’impact de l’interculturel sur les échanges virtuels en entreprise ?Cusumano, Christophe ![]() Conference (2012, March) Since the end of the eighties, the globalization and development of new information and communication technologies have played a great part in complicating exchanges between companies and their various ... [more ▼] Since the end of the eighties, the globalization and development of new information and communication technologies have played a great part in complicating exchanges between companies and their various stakeholders (staff, customers/users and business partners). New forms of organization of work result in more and more relationships between people of different nationalities and cultures. Thanks to virtuality, a lot of companies can develop connections with people from various cultural backgrounds which can be co-located or distributed (with partners situated abroad, including in different time zones). But to maximize this potential, organization must overcome different complexifications levels of virtual communication and multicultural. So, we suggest studying the impact of cultural diversity on the quality and efficiency of virtual communications. There are already many studies about the impact of diversity on non-virtual context but very little about the impact of diversity on virtual exchanges. The originality of this article is to focus on the influence of intercultural and virtuality. [less ▲] Detailed reference viewed: 120 (6 ULg) Neurosurgery for headachesMAGIS, Delphine ![]() Conference (2012, March) Detailed reference viewed: 3 (1 ULg) Théâtre et engagementPichault, François ![]() Conference (2012, March) Detailed reference viewed: 11 (0 ULg) From direct to inverse analysis in flexible multibody dynamicsBruls, Olivier ![]() Conference (2012, March) Today, state-of-the-art simulation packages in flexible multibody dynamics allow the high-fidelity analysis of industrial mechanisms and machines in many application fields including robotics, automotive ... [more ▼] Today, state-of-the-art simulation packages in flexible multibody dynamics allow the high-fidelity analysis of industrial mechanisms and machines in many application fields including robotics, automotive systems, aeronautics, deployable structures or wind turbines. The dynamic response of a given system can thus be evaluated in the time-domain for given load cases and given initial values. However, in many practical cases, the engineer does not have a precise knowledge of the mechanical design, the loading conditions and the initial state. This situation occurs for example in structural optimization, optimal control, experimental identification and health monitoring problems. The complexity of simulation codes and the computational cost of high-fidelity models are still important obstacles for the development of efficient resolution methods for these inverse problems. A current challenge is thus to elaborate simplified and more efficient modelling strategies in flexible multibody dynamics in order to enable the development of inverse analysis methods. The talk is divided into three parts. The first part provides an overview of available simulation techniques for flexible mechanisms with a particular emphasis on finite element-based approaches and time integration methods. Some illustrations are presented in the fields of deployable structures, vehicle dynamics and wind turbines. In the second part, optimization problems in flexible multibody dynamics are addressed and solved using gradient-based methods. Efficient methods for sensitivity analysis are discussed and special problems are treated such as the structural optimization of mechanical components or the numerical solution of inverse dynamics problems. The third part discusses a recently-developed Lie group approach which allows the formulation of the equations of motion of a multibody system in a parameterization-free setting. Based on this general formalism, which is characterized by an increased modularity and a reduced complexity, a large variety of Lie group solvers are foreseen not only for time integration but also for model reduction, sensitivity analysis and optimization. [less ▲] Detailed reference viewed: 32 (5 ULg) Modellierung des Trennverhaltens wässriger Systeme in Packungskolonnen basierend auf tomographischen; ; Aferka, Saïd et alConference (2012, March) Detailed reference viewed: 20 (5 ULg) Politique féministe et technologie. La figure du cyborg dans la philosophie de Donna Haraway.Van Caillie, Céline ![]() Conference (2012, March) Detailed reference viewed: 2 (0 ULg) Freedom, Memory, and Identity: The Paradoxical Individual/Collective Dialectic in Steve Darnall and Alex Ross’s Graphic Novel 'Uncle Sam'Dony, Christophe ![]() Conference (2012, March) As his star-spangled costume and his usually firm posturing suggest, Uncle Sam impersonates the United States and symbolically reflects the nation’s most cherished values and ideals such as freedom ... [more ▼] As his star-spangled costume and his usually firm posturing suggest, Uncle Sam impersonates the United States and symbolically reflects the nation’s most cherished values and ideals such as freedom, exceptionalism, and (masculine) strength. As such, he connects the projects of nationalism and patriotism with the scale of the individual. In other words, he embodies the American motto ‘out of many, one.’ Steve Darnall and Alex Ross’s rewriting of the character, however, strongly contrast with this dominant perception of Uncle Sam in their eponymous 1997 graphic novel. Their narrative shows a distressed and lunatic homeless man wandering the streets of an unknown American city. As he roams the streets, he undergoes an identity crisis that coincides with a crisis of memory, both of which complicate the relation between the symbolic individual body and the collective American unconscious. On the one hand, the character represents the values of freedom and democracy that the US government has strived to implement. On the other, he realizes that the paradigm of the nation cannot be understood as a monolithic entity, and that the plurality of voices that inhabit his persona – and, quite paradoxically, the country – cannot uphold this meta-narrative of American unity. In asking whether or not Uncle Sam is one of U.S., Darnall and Ross comment on the paradoxes of freedom and the myth of the melting pot. [less ▲] Detailed reference viewed: 8 (0 ULg) The usefulness of Ion Mobility-Mass Spectrometry for Small Molecules AnalysisFar, Johann ; Goscinny, Séverine ; et alConference (2012, March) Detailed reference viewed: 34 (6 ULg) Sport (and Exercise) Pedagogy and its interest in the fields of PE teaching, sport coaching and physical activity/healthCloes, Marc ![]() Conference (2012, March) Within the specialist seminar, the aims of this presentation were to share a personal conception of Sport (& Exercise) Pedagogy, to illustrate some current challenges for researchers of this specific ... [more ▼] Within the specialist seminar, the aims of this presentation were to share a personal conception of Sport (& Exercise) Pedagogy, to illustrate some current challenges for researchers of this specific field of Sport Sciences, and to suggest some approaches to develop in the future. In the first part, an emphasis will be set on the analysis of the papers presented during the ARIS' congresses. It will be the opportunity to bridge the gap between Anglo-Saxon authors and those from the French speaking world, in order to underline the existence of a research corpus that is unknown by those who are not able to read another language than English. [less ▲] Detailed reference viewed: 70 (3 ULg) RELIABILITY OF ANALYTICAL METHODS’ RESULTS: A BAYESIAN APPROACH TO ANALYTICAL METHOD VALIDATIONRozet, Eric ; ; Lebrun, Pierre et alConference (2012, March) Methods validation is mandatory in order to assess the fitness of purpose of the developed analytical method. Of core importance at the end of the validation is the evaluation of the reliability of the ... [more ▼] Methods validation is mandatory in order to assess the fitness of purpose of the developed analytical method. Of core importance at the end of the validation is the evaluation of the reliability of the individual results that will be generated during the routine application of the method. Regulatory guidelines provide a general framework to assess the validity of a method, but none address the issue of results reliability. In this study, a Bayesian approach is proposed to address this concern. Results reliability is defined here as “the probability ()π of an analytical method to provide analytical results within predefined acceptance limits ()X()λ± around their reference or conventional true concentration values ()Tμ over a defined concentration range and under given environmental and operating conditions.” By providing the minimum reliability probability (minπ needed for the subsequent routine application of the method, as well as specifications or acceptance limits ()λ±, the proposed Bayesian approach provides the effective probability of obtaining reliable future analytical results over the whole concentration range investigated. This is summarized in a single graph: the reliability profile. This Bayesian reliability profile is also compared to two frequentist approaches, the first one derived from the work of Dewé et al. [1] and the second proposed by Govaerts et al. [2]. Furthermore, the applicability of the Bayesian reliability profile is shown using as example the validation of a bioanalytical method dedicated to the determination of ketoglutaric acid (KG) and hydroxymethylfurfural (HMF) in human plasma by SPE-HPLC-UV. [1] Dewé W., Govaerts B., Boulanger B., Rozet E., Chiap P., Hubert Ph., Chemometr. Intell. Lab. Syst. 85 (2007) 262-268. [2] B. Govaerts, W. Dewé, M. Maumy, B. Boulanger, Qual. Reliab. Engng. Int. 24 (2008) 667-680. [less ▲] Detailed reference viewed: 70 (5 ULg) Forensic Study of Volatile Organic Compounds Released from Decaying BodiesStefanuto, Pierre-Hugues ; Brasseur, Catherine ; Dekeirsschieter, Jessica et alConference (2012, March) Detailed reference viewed: 12 (8 ULg) The tenuous social order in French dystopias. How can sympathy prevent the end of the Earth ?Stienon, Valérie ![]() Conference (2012, March) Detailed reference viewed: 8 (0 ULg) 3D thermo-elastic distortion measurements on OSIRIS SiC hardware by holographic interferometry and correlation with finite element modelsThizy, Cédric ; ; et alConference (2012, March) Detailed reference viewed: 13 (2 ULg) Régimes matrimoniaux en droit international privé - panorama de droit comparéWautelet, Patrick ![]() Conference (2012, March) This presentation gives an overview of the main trends in relation to cross-border matrimonial assets in Europe. Focusing on the question of which law applies to matrimonial assets, it seeks to determine ... [more ▼] This presentation gives an overview of the main trends in relation to cross-border matrimonial assets in Europe. Focusing on the question of which law applies to matrimonial assets, it seeks to determine what are the main points of consensus and divergence in the regulation of cross-border matrimonial property issues. [less ▲] Detailed reference viewed: 61 (0 ULg) Spurious oscillations in generalized-alpha time integration methods; Bruls, Olivier ; Conference (2012, March) Detailed reference viewed: 19 (0 ULg) L'identité européenne et la mondialisation - commentateurHermans, Michel ![]() Conference (2012, March) Detailed reference viewed: 22 (5 ULg) Non invasive neurostimulation for headaches.MAGIS, Delphine ![]() Conference (2012, March) Detailed reference viewed: 5 (0 ULg) Heisenberg-limited metrology without entanglement; Martin, John ![]() Conference (2012, March) Detailed reference viewed: 6 (0 ULg) |
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