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See detailA new index to measure the human well-being in Wallonia and its communes (South of Belgium)
Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 1st International Conference of Development and Economy (ICODECON) : The advantages and disadvantages of Economic Crises : Book of abstracts (2015)

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See detailHeterogeneity of multitasking abilities in schizophrenia.
Laloyaux, Julien ULg; Van der Linden, Martial ULg; Laroi, Frank ULg

in Van Overwalle, Frank; Uzieblo, Kasia; Rossi, Gina (Eds.) et al Abstract book of the Annual meeting of the Belgian Association for Psychological Sciences (2015)

Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia, and in particular for those activities requiring multitasking capacities. Multitasking refers to ... [more ▼]

Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia, and in particular for those activities requiring multitasking capacities. Multitasking refers to activities (e.g. preparing a meal) where the person has to: (a) carry out and alternate between different tasks that vary in terms of priority, difficulty and duration; (b) define the tasks’ targets; (c) and face unexpected problems during the realization of these tasks. Moreover, schizophrenia is characterized by a great heterogeneity in regard to their everyday life difficulties and cognitive functioning. At present, patients’ multitasking capacities have not been adequately examined in the literature due to an absence of suitable assessment strategies. We thus recently developed a computerized real-life activity task designed to take into account the complex and multitasking nature of certain everyday life activities where participants are required to prepare a room for a meeting (i.e. the Computerized Meeting Preparation Task, CMPT). The aim of this study was to examine the multitasking abilities in persons diagnosed with schizophrenia and in particular the existence of subgroups of patients in regard to their performances on cognitive measures and on the CMPT. Sixty-two patients diagnosed with schizophrenia and 39 paired healthy controls completed the CMPT and a cognitive battery. The results reveal that the CMPT possesses good sensitivity and suggest three underlying constructs of multitasking (Memory, Planning and Intent), which were found to be underpinned by several cognitive functions and multitasking aspects. Moreover, cluster analyses revealed subgroups of patients differing in terms of their cognitive and CMPT performances. Taken together, these results show the need for a cognitive model of multitasking abilities in persons diagnosed with schiozphrenia. Taken together, this cognitive model and the CMPT, could be a good basis for cognitive interventions of multitasking abilities in schizophrenia. Finally, the results underline the heterogeneity of schizophrenia. [less ▲]

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See detailSignes et corrections dans le P.Vat. gr. 11v - Favorinos, De exsilio
Macedo, Gabriel ULg

in Marganne, Marie-Hélène; Amato, Eugenio (Eds.) Entre papyrologie, philologie et littérature. Autour du traité "Sur l'Exil" de Favorinos d'Arles. Actes de la journée d'études, Nantes 13-11-2013 (2015)

A study of scribal practices, signs and corrections on the only known copy of Favorinos' De exsilio.

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See detailStorytelling as Strategy to Envision the Changing Meaning of Heritage From an Object-focused Approach Towards an Intertwined Contextual One
Gantois, Gisele ULg; Schoonjans, Yves

in Kepczynska-Walczak, Anetta (Ed.) Envisioning Architecture: Image, Perception and Communication of Heritage (2015)

Locality and place making as elements of social sustainability play a significant role in a world of growing globalization. More and more researchers and professionals realize that the identity of small ... [more ▼]

Locality and place making as elements of social sustainability play a significant role in a world of growing globalization. More and more researchers and professionals realize that the identity of small communities is also constructed by modest heritage, responsible for a large part of the quality and social cohesion. Once we focus on the historical, social, cultural, ecological and physical meshwork, we transcend the solely focus on the object to explore the physical, emotional and experiential realities of place and how these are rooted in the individual and collective memory as they unfold in the everyday life. In the creation of a sustainable and resilient society the meaning and appropriation of that heritage is too important and too complex to restrict the significance of it purely to the artefact itself with its acknowledged architectural, historical or archaeological values. How can new meaning of place be enacted, created and negotiated in current times of migration and mobility? What is the status and role of modest heritage in small communities today? Does it still play a considerable role in the identity, quality and social cohesion of a region? How do we explore the intangible dimension of the tangible? How do we deal with the intangible and informal aspects of heritage? This paper concentrates on these issues in the complex urban countryside of the region of Flanders (Belgium). Flanders is a highly dense and post-industrialized area where the countryside is under an urbanized pressure. Within the fabric we detect numerous small-scale heritage as chapels, parsonages, ice-cellars, donjons, square farms and wind- and watermills. Possible relationships of heritage with its context will be tackled, explored and tested in different layers through particular cases within the strategy of storytelling as a spatial practice. [less ▲]

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See detailSegmentation of gait cycles using foot-mounted 3D accelerometers
Boutaayamou, Mohamed ULg; Bruls, Olivier ULg; Denoël, Vincent ULg et al

in Proceedings of the IEEE International Conference on 3D Imaging 2015 (2015)

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The ... [more ▼]

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The detection of such gait cycles is indeed a crucial step for an accurate extraction of relevant gait events such as heel strike, toe strike, heel-off, and toe-off. We demonstrate the ability of this segmentation method, used in conjunction with a validated extraction algorithm, to calculate the following gait (duration) parameters for each gait cycle during the gait of a healthy young subject and of an elderly subject with Parkinson’s disease (PD) in OFF and ON states: durations of (1) loading response, (2) mid-stance, (3) push-off, (4) stance, (5) swing, (6) stride, (7) step, and (8) double support phases. The experimental results show that the proposed method can extract relevant refined gait parameters to quantify subtle gait disturbances in subjects with PD. [less ▲]

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See detailPressure and velocity on an ogee spillway crest operating at high head ratio: experimental measurements and instrumentation
Peltier, Yann ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Carvalho, Rita; Pagliara, Stefano (Eds.) 2nd International workshop on hydraulic structures: data validation (2015)

This paper aims at validating pressure and velocity measurements conducted in two physical scale models of an ogee spillway crest operating at heads largely greater than the design head. The design head ... [more ▼]

This paper aims at validating pressure and velocity measurements conducted in two physical scale models of an ogee spillway crest operating at heads largely greater than the design head. The design head of the second model is 50% smaller than the one of the first model. No piles effect or air entrance is considered in the study. The velocity field is measured by Large Scale Particle Image Velocimetry. The relative pressure along the spillway crest is measured using pressure sensors. Comparisons of measured velocities between both spillways indicate low scale effects, the scaled-profiles collapsing in most parts of the flow. By contrast, measurements of relative pressure along the spillway crest differ for large heads. A theoretical velocity profile based on potential flow theory and expressed in a curvilinear reference frame is then fitted to the velocity measurements, considered as reference, for extrapolating the velocity at the spillway crest. Comparing the extrapolated velocity at the spillway crest and the velocity expressed from the relative pressure finally emphasizes that bottom pressure amplitudes are overestimated for the large spillway, while an averaging effect might operate for the pressure measurements on the small spillway. [less ▲]

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See detailEmpirical model of a variable speed vapor injection compressor for air source heat pump dynamic modeling
Dechesne, Bertrand ULg; Bertagnolio, Stéphane

in International conference on compressors and their systems (2015)

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See detailDiscrete Element Method Modeling of Ball Mills - Liner Wear Evolution
Boemer, Dominik ULg; Rycerski, Serge; Vis, Jean et al

in Oñate, E.; Bischoff, M.; Owen, D.R.J. (Eds.) et al Proceedings of the IV International Conference on Particle-Based Methods – Fundamentals and Applications (2015)

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See detailThree-node zero-thickness hydro-mechanical interface finite element for geotechnical applications
Cerfontaine, Benjamin ULg; Dieudonné, Anne-Catherine ULg; Radu, Jean-Pol ULg et al

in Proceedings of coupled 2015 (2015)

The paper briefly presents the main features of a hydro-mechanical coupled finite element of interface. The mechanical problems takes into account the the detection of contact, the development of a ... [more ▼]

The paper briefly presents the main features of a hydro-mechanical coupled finite element of interface. The mechanical problems takes into account the the detection of contact, the development of a contact pressure, the shearing and the relative sliding between two solids. A three-node discretisation of hydraulic problem allows the representation of fluid flows across and in the plane of the interface. The method involves a drop of pressure between each side of the interface and the inner medium. The hydro-mechanical couplings come from 1) the definition of the total pressure acting on each side of the interface according to the Terzaghi’s principle; 2) the dependence of the permeability on the gap variation; 3) the variation of the fluid mass stored within the gap. [less ▲]

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See detailDes insectes au menu: apports protéiques et nutriments particuliers?
Caparros Megido, Rudy ULg; Alabi, Taofic ULg; Haubruge, Eric ULg et al

in 56èmes Journées Nationales de Diététique et de Nutrition (2015)

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See detailLes traumatisés de Sedan (1870) et la Belgique
Bechet, Christophe ULg

in Cochet, François (Ed.) Expérience combattante –XIXe-XXIe siècles, IV : L’expérience traumatique (2015)

Au lendemain de la bataille de Sedan (1er septembre 1870), la Belgique accueillit un grand nombre de blessés français et prussiens. Le transfert des grands blessés se fit grâce à l'action de l'association ... [more ▼]

Au lendemain de la bataille de Sedan (1er septembre 1870), la Belgique accueillit un grand nombre de blessés français et prussiens. Le transfert des grands blessés se fit grâce à l'action de l'association belge de secours aux militaires blessés en temps de guerre (Croix Rouge de Belgique). L'accueil favorable des autorités belges répondait autant à des considérations humanitaires que politiques. Sur le plan technique, les graves blessures causées par les armes à feu, de plus en plus puissantes, posèrent de nouveaux défis aux chirurgiens belges. [less ▲]

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See detailA modular approach dedicated to dam-break and dam-breaching modelling
Stilmant, Frédéric ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Advances in Hydroinformatics (2015)

The paper presents an integrated tool for dam-break hazard modelling. It is based on a two-dimensional, depth-averaged hydraulic model that uses a conservative and shock-capturing finite volume scheme on ... [more ▼]

The paper presents an integrated tool for dam-break hazard modelling. It is based on a two-dimensional, depth-averaged hydraulic model that uses a conservative and shock-capturing finite volume scheme on a Cartesian grid. The hydraulic model is designed so that different zones within the computation domain can be modelled with different spatial resolutions and/or different model enhancements (e.g. pressurised flows, sediment transport, etc.). The two-dimensional model can be coupled with lumped models that compute the water stage in reservoirs and the outflow discharge through hydraulic structures, in case of normal operating, failure of a valve or breaching processes. These features make hydraulic modelling versatile and computationally efficient. They enable the definition of different failure scenarios, which is of prominent importance given the uncertainty of such a phenomenon. If several hydraulic structures are involved, the procedure takes the behaviour of each structure into account. The sensitivity of the results with respect to the interactions between the flow and the terrain (roughness coefficient, collapse of buildings, breaching process) can be analysed. The results of the hydraulic model are handled thanks to a graphical user interface that provides one-, two- and three-dimensional views and animations of the unsteady flow-field and enables the understanding and verification of the results. Danger maps are generated based on the results of one or more ‘worst-case’ scenarios. In case of a complete risk analysis, the danger maps are combined with data on the exposure and vulnerability of elements at risk for the computation of the corresponding damage. [less ▲]

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See detailAdvances in virtual process chain and connection with online monitoring methods for first time tight manufacturing of thermoset laminated composites
Brauner, Christian; Miene, Andrea; Bruyneel, Michaël ULg et al

in NAFEMS World Congress 2015 (2015)

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See detailDE3: Yet another high-order integration scheme for linear structural dynamics
Depouhon, Alexandre; Detournay, Emmanuel; Denoël, Vincent ULg

in Proceedings of the 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. (2015)

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See detailLe Transport de marchandises et de personnes sur le Nil en 823 A.H./1420 È.C.
Bauden, Frédéric ULg

in Schubert, Alexander T.; Sijpesteijn, Petra M. (Eds.) Documents and the History of the Early Islamic World (2015)

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See detailUne mobilité résidentielle durable est-elle possible? Pratique de déplacements, modèles urbains et choix de localisation de populations résidentes en Wallonie.
Reiter, Sigrid ULg; Ghiezen, Sébastien; Pierson, Charlotte

in Actes du Colloque International APERAU 2014: "Villes à vivre: le quotidien métropolitain entre ancrage et mobilité". (2015)

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See detailGestes professionnels, propriété d’accompagnement, dispositif de validation des acquis : Trois exemples de couplage entre un dispositif de recherche et un dispositif de formation Symposium court proposé par les universités de Lille 1 et de Liège
Faulx, Daniel ULg; Leclercq, Gilles; Vermelle, Marie-Christine

in Actes du 28ème Colloque de l'Association Internationale de Pédagogie Universitaire (2015)

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de ... [more ▼]

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de symposium court s’inscrit dans la continuité des recherches menées dans le pôle Codeus du laboratoire Trigone Cirel[1] et de l’Unité d’Apprentissage et de Formation continue des Adultes de l’Université de Liège (UAFA-ULg)[2]. Nous l’avons intitulé : gestes professionnels, propriété d’accompagnement et dispositif de validation des acquis ; trois exemples de couplage entre un dispositif de recherche et un dispositif de formation. Dans les trois contributions que nous proposons, il sera en effet question de l’association entre une activité de recherche qui se nourrit d’une activité de formation et d’une activité de formation qui exploite l’activité de recherche. Cela nous permettra de rendre compte de travaux menés en cours de formation à des échelles différentes : - à l’échelle du geste singulier de l’enseignant pour la première contribution ; - à l’échelle de la propriété d’accompagnement pour la deuxième ; - à l’échelle d’un dispositif de validation des acquis de l’expérience pour la troisième. Nous commencerons donc ce symposium en ciblant une préoccupation d’ordre micro-pédagogique pour en arriver, par la suite, à des préoccupations plus englobantes. Cela nous permettra de questionner, de différents points de vue, les modalités de collaboration entre dispositifs de formation et dispositifs de recherche, ce qui nous conduira à engager un débat autour des questions suivantes : -.comment les dispositifs de recherche mis en œuvre s’emparent-t-il des dispositifs de formation ? - comment le matériau de recherche est-il collecté, choisi, interprété, analysé, discuté ? - quels sont les cadres de références théoriques et méthodologiques mobilisés, à quoi servent-ils ? - comment l’activité de recherche est-elle distribuée entre les acteurs ? - peut-on parler de savoirs constitués et quels sont-ils ? - comment les dispositifs de formation exploitent-t-ils les dispositifs de recherche, comment s’en emparent-ils ? - etc [less ▲]

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See detailAldebert et Clément. Deux évêques marginaux sacrifiés à la réforme de l’Église ?
Close, Florence ULg

in Depreux, Philippe; Le Jan, Régine; Bougard, François (Eds.) Compétition et sacré au haut moyen âge : entre médiation et exclusion (2015)

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See detailCastelvecchio Calvisio: et pourquoi pas un scénario ruskinien?
Houbart, Claudine ULg; Dawans, Stéphane ULg

in Crisan, Rodica; Fiorani, Donatella; Kealy, Loughlin (Eds.) et al Restoration/Reconstruction. Small Historic Centres. Conservation in the Midst of Change, EAAE IV meeting and workshop (Roma - Castelvecchio Calvisio, October 28-31, 2013) (2015)

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See detailA repair quality control with elastic waves based methods vs. substrate quality
Garbacz, Andrzej; Piotrowski, Tomasz; Courard, Luc ULg et al

in Dehn; Beushausen, Hans (Eds.) Concrete Repair, Rehabilitation and Retrofitting IV (2015)

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important ... [more ▼]

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important tasks. A majority of NDT methods mentioned in EN 1504-10 and ACI Concrete Repair Manual for assessment of concrete structures are based on propagation of stress waves. However, these investigations are rarely focused on evaluation of bond strength. Repair system is difficult to test with NDT methods because of many factors influencing stress wave propagation. In this paper the effect of a quality of concrete substrate on propagation of stress waves in repair system and their influence on possibility of estimation of the bond strength is discussed. [less ▲]

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See detailShear bolted connections for tubular racking structures: Numerical analysis
D'Antimo, Marina ULg; Demonceau, Jean-François ULg; Jaspart, Jean-Pierre ULg et al

in Proceeding of XXV Congresso CTA: Salerno 1-3 ottobre 2015 (2015)

The prediction of the shear resistance of connections as presently given in Eurocode 3, Part 1-8, cannot be applied in a straightforward way to the connection for tubular racking structures realized by ... [more ▼]

The prediction of the shear resistance of connections as presently given in Eurocode 3, Part 1-8, cannot be applied in a straightforward way to the connection for tubular racking structures realized by means of long through bolts. In order to verify the possibility to extend the codified approach to such joint configurations, in the present paper a finite element model with three-dimensional solid elements is established investigating the behaviour of the connections under shear load in a wide range of variability of the geometrical parameters. The validation of the numerical model has been performed starting from the results of experimental tests already performed by the authors at the laboratory on Materials and Structures of the University of Liège. Based on the finite element results, the load displacement curves for all the assemblies were successfully predicted evidencing the important role played by the hole’s geometry and reduced diameter of the bolts on the initial stiffness of the connections. The results of a parametric study by means of a calibrated FE model in Abaqus/CAE allowed to verify the possibility to extend the formulations provided by EC3 for predicting the bearing resistance of plates to these kind of connections and to analyse the influence of the main parameters governing the bearing resistance: the distance e1 between the hole and the edge of the tube, the distance e2 between the hole and the lateral edge of the plate composing the tube section and the thickness t of the tube. [less ▲]

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See detailModeling and control of waste heat recovery Rankine based systems for heavy duty trucks
Grelet, Vincent; Dufour, Pascal; Nadri, Madiha et al

in Proceedings of the 9th International Symposium on Advanced Control of Chemical Processes (2015)

This paper presents a control oriented model development for waste heat recovery Rankine based control systems in heavy duty trucks. Waste heat recovery systems, such as Rankine cycle, are promising ... [more ▼]

This paper presents a control oriented model development for waste heat recovery Rankine based control systems in heavy duty trucks. Waste heat recovery systems, such as Rankine cycle, are promising solutions to improve the fuel efficiency of heavy duty engines. Due to the highly transient operating conditions, improving the control strategy of those systems is an important step to their integration into a vehicle. The system considered here is recovering heat from both EGR and exhaust in a serial arrangement and use a mixture of water and ethanol as working fluid. The paper focuses on a comparison of a classical PID controller which is the state of the art in the automotive industry and a nonlinear model based controller in a simulation environment. The nonlinear model based controller shows better performance than the PID one and ensures safe operation of the system. [less ▲]

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See detailNavigating the uncertain seas of controversies – A pedagogical wind rose
Verpoorten, Dominique ULg

in Melard, François; Stassart, Pierre M (Eds.) Proceedings of the International Interdisciplinary Working Conference "Teaching complexity and uncertainty on Environmental Issues - Practices, Theories and Products" (2014, December 23)

The Arlon conference brought together lecturers willing to share and discuss aspects of their practice of “controversies”, seen as a teaching/learning method suited to the contextual needs and demands of ... [more ▼]

The Arlon conference brought together lecturers willing to share and discuss aspects of their practice of “controversies”, seen as a teaching/learning method suited to the contextual needs and demands of higher education environmental studies. The paper contributes to this joint reflective effort by providing conceptual tools helping to interpret the practice, to question what it puts at stake and to detect, from a pedagogical viewpoint, key issues and upcoming questions. The contribution falls within the Conference's aim n°2: “share theories or conceptual propositions that make it possible to equip the teaching approaches and to give them theoretical and methodological foundations” (Program Arlon Conference 2014, p. 2). The article takes a traditional stance, looking at the contributions to the conference through “constructive alignment”(Biggs, 1996), a basic principle meant to secure the pedagogical validity of any given learning situation by establishing a triple consistency (Kovertaite & Leclercq, 2006; Leclercq, 1995; Petit, Castaigne, & Verpoorten, 2007; Tyler, 1949) between objectives, methods and assessment. [less ▲]

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See detailProgramme de revalidation multidisciplinaire post-cancer du sein : analyse des bénéfices éventuels sur la fonction physique et la qualité de vie
LECLERC, Anne-France ULg; FOIDART-DESSALLE, Marguerite ULg; COUCKE, Philippe ULg et al

in AFPSA - 8e congrès francophone, Psychologie de la Santé - Evolutions sociales, innovations & politiques - Résumé des communications (2014, December 16)

Introduction : Le cancer du sein ainsi que ses traitements sont à l'origine de nombreux effets secondaires indésirables. L'objectif de l'étude est de déterminer les bénéfices éventuels, tant sur le plan ... [more ▼]

Introduction : Le cancer du sein ainsi que ses traitements sont à l'origine de nombreux effets secondaires indésirables. L'objectif de l'étude est de déterminer les bénéfices éventuels, tant sur le plan physique que psychologique, d’un programme de revalidation multidisciplinaire chez des femmes ayant été traitées pour un cancer du sein. Méthodologie : 122 patientes ont été recrutées, 61 faisant partie du groupe contrôle et 61 du groupe traité. Celui-ci a bénéficié d’une revalidation de trois mois comprenant un entraînement physique supervisé et diverses sessions psycho-éducatives. Les évaluations, effectuées avant et après la prise en charge, ont inclus des mesures anthropométriques et de composition corporelle, une évaluation des capacités fonctionnelles et différents questionnaires. Résultats : Au terme des trois mois, l’état de santé (qualité de vie), le rôle fonctionnel, l’état émotionnel et les fonctions physiques, cognitives et sociales s’améliorent significativement au sein du groupe traité. Cette observation s’applique également aux symptômes de fatigue, d'insomnie, de douleur, de dyspnée, de perte d'appétit, d’anxiété et de dépression ainsi qu'aux paramètres physiques obtenus par l'intermédiaire des évaluations fonctionnelles. Au sein du groupe contrôle, ces améliorations n’apparaissent pas et une augmentation significative de l'indice de masse corporelle et du pourcentage de graisse corporelle est observée. Conclusion : Cette étude préliminaire montre ainsi la faisabilité et les effets bénéfiques d’une prise en charge multidisciplinaire chez des femmes au terme de leurs traitements pour le cancer du sein. [less ▲]

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See detailEnvironmental changes in developing countries: from moving to trapped populations
Ozer, Pierre ULg; De Longueville, Florence ULg; Zickgraf, Caroline ULg et al

in Young Researchers Overseas' Day - Book of Abstracts (2014, December 16)

Over the last decades, environmental changes driven and/or compounded by population pressures and climate change have dramatically impacted human mobility, including population displacements or migration ... [more ▼]

Over the last decades, environmental changes driven and/or compounded by population pressures and climate change have dramatically impacted human mobility, including population displacements or migration, especially in developing countries. Slow onset degradation processes (aridification, desertification, wind and water erosion, deforestation, shoreline erosion, etc.) and sudden disasters (extreme climate events such as floods, droughts, storms, heat waves, etc.) have intensified since the 1950s in terms of frequency, intensity and duration, as well as in their socio-economic consequences. In the absence of an international objective to reduce greenhouse gas emissions, global warming and its wide range of negative impacts are not likely to be contained in the future [...] [less ▲]

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See detailImpact of net metering programs on optimal load management in US residential housing – a case study
Georges, Emeline ULg; Braun, J. E.; Groll, E. et al

in Proceedings of 9th International Conference on System Simulation in Buildings (2014, December 11)

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See detailDevelopment and validation of a 3D kinematic-based method for determining gait events during overground walking
Boutaayamou, Mohamed ULg; Schwartz, Cédric ULg; Denoël, Vincent ULg et al

in IEEE International Conference on 3D Imaging (IC3D) (2014, December 09)

A new signal processing algorithm is developed for quantifying heel strike (HS) and toe-off (TO) event times solely from measured heel and toe coordinates during overground walking. It is based on a rough ... [more ▼]

A new signal processing algorithm is developed for quantifying heel strike (HS) and toe-off (TO) event times solely from measured heel and toe coordinates during overground walking. It is based on a rough estimation of relevant local 3D position signals. An original piecewise linear fitting method is applied to these local signals to accurately identify HS and TO times without the need of using arbitrary experimental coefficients. We validated the proposed method with nine healthy subjects and a total of 322 trials. The extracted temporal gait events were compared to reference data obtained from a force plate. HS and TO times were identified with a temporal accuracy ± precision of 0.3 ms ± 7.1 ms, and –2.8 ms ± 7.2 ms in comparison with reference data defined with a force threshold of 10 N. This algorithm improves the accuracy of the HS and TO detection. Furthermore, it can be used to perform stride-by-stride analysis during overground walking with only recorded heel and toe coordinates. [less ▲]

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See detailEvidence based medicine - Tendon and platelet-rich plasma (PRP)
Kaux, Jean-François ULg

in Annual Congress RSBPRM (2014, December 06)

Platelets have known roles in coagulation, inflammatory processes, and immunity modulation; they also have ‘‘restorative’’ properties. Indeed, during degranulation, platelets release different cytokines ... [more ▼]

Platelets have known roles in coagulation, inflammatory processes, and immunity modulation; they also have ‘‘restorative’’ properties. Indeed, during degranulation, platelets release different cytokines and growth factors (VEGF, PDGF, TGF-B, IGF-I, and HGF) that promote angiogenesis, tissue remodeling (bone, skin, muscle, tendon, etc.), and wound healing. PRP is obtained by centrifuging autologous blood to obtain a concentration of platelets, usually between 3 and 10 times that of whole blood, depending on the isolation method. For this reason, different PRP preparation techniques cannot provide a consistently identical final product, but there is currently no international consensus on this issue. Overall, PRP could be an attractive therapeutic option for treating chronic musculoskeletal conditions, such as tendinopathy or plantar fasciitis. Tendons do not have a high metabolic index. Growth factors released by platelets promote tenocyte proliferation, stimulate angiogenesis and have analgesic properties. Thus it could stimulate and accelerate tissue regeneration in animal models. In addition to PRP, optimal tissue quality requires the application of mechanical loads. PRP should be considered for chronic tendinopathies. Indeed, the goal is to initiate an acute inflammatory reaction that quickly moves on to the proliferative phase that involves collagen synthesis. The latter is necessary for appropriate tendon healing. PRP should therefore not be used for acute tendinitis or tenosynovitis. Even if most of the preclinical studies showed that PRP stimulates the tendon healing process, clinical series remain more controversial. Based on literature and our clinical experience, we suggest some ideas for improving this treatment. Optimization of the technique for collecting the PRP is paramount. Different risk factors must be corrected before infiltration, and chronic tendinopathies must be carefully selected. Finally, post-infiltration rehabilitation remains absolutely necessary. Standardisation of the use of PRP remains necessary in order to optimise the results. [less ▲]

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See detailConverging to and escaping from the global equilibrium: Isostables and optimal control
Mauroy, Alexandre ULg

in Proceedings of the 53rd IEEE Conference on Decision and Control (2014, December)

This paper studies the optimal control of trajectories converging to or escaping from a stable equilibrium. The control duration is assumed to be short. When the control is turned off, the trajectories ... [more ▼]

This paper studies the optimal control of trajectories converging to or escaping from a stable equilibrium. The control duration is assumed to be short. When the control is turned off, the trajectories have not reached the target and they subsequently evolve according to the free motion dynamics. In this context, we show that the problem can be formulated as a finite-horizon optimal control problem which relies on the notion of isostables. For linear and nonlinear systems, we solve this problem using Pontryagin’s maximum principle and we study the relationship between the optimal solutions and the geometry of the isostables. Finally, optimal strategies for choosing the magnitude and duration of the control are considered. [less ▲]

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See detailEvaluation of pairwise calibration techniques for range cameras and their ability to detect a misalignment
Lejeune, Antoine ULg; Grogna, David ULg; Van Droogenbroeck, Marc ULg et al

in International Conference on 3D Imaging (IC3D) (2014, December)

Many applications require the use of multiple cameras to cover a larger volume. In this paper, we evaluate several pair-wise calibration techniques dedicated to range cameras. We compare the precision of ... [more ▼]

Many applications require the use of multiple cameras to cover a larger volume. In this paper, we evaluate several pair-wise calibration techniques dedicated to range cameras. We compare the precision of a self-calibration technique based on the movement in front of the cameras to object based calibration. While the self-calibration method is less precise than its counterparts, it yields a first estimation of the transformation between the cameras and permits to detect when the cameras become mis-aligned. Therefore it is useful in a practical situations. [less ▲]

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See detailA physically motivated pixel-based model for background subtraction in 3D images
Braham, Marc ULg; Lejeune, Antoine ULg; Van Droogenbroeck, Marc ULg

in International Conference on 3D Imaging (IC3D) (2014, December)

This paper proposes a new pixel-based background subtraction technique, applicable to range images, to detect motion. Our method exploits the physical meaning of depth information, which leads to an ... [more ▼]

This paper proposes a new pixel-based background subtraction technique, applicable to range images, to detect motion. Our method exploits the physical meaning of depth information, which leads to an improved background/foreground segmentation and the instantaneous suppression of ghosts that would appear on color images. In particular, our technique considers certain characteristics of depth measurements, such as failures for certain pixels or the non-uniformity of the spatial distribution of noise in range images, to build an improved pixel-based background model. Experiments show that incorporating specificities related to depth measurements allows us to propose a method whose performance is increased with respect to other state-of-the-art methods. [less ▲]

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See detailOn Projection-Based Model Reduction of Biochemical Networks Part II: The Stochastic Case
Sootla, Aivar ULg; Anderson, James

in Proceedings of the 53rd IEEE Conference on Decision and Control (2014, December)

In this paper, we consider the problem of model order reduction of stochastic biochemical networks. In particular, we reduce the order of (the number of equations in) the Linear Noise Approximation of the ... [more ▼]

In this paper, we consider the problem of model order reduction of stochastic biochemical networks. In particular, we reduce the order of (the number of equations in) the Linear Noise Approximation of the Chemical Master Equation, which is often used to describe biochemical networks. In contrast to other biochemical network reduction methods, the presented one is projection-based. Projection-based methods are powerful tools, but the cost of their use is the loss of physical interpretation of the nodes in the network. In order alleviate this drawback, we employ structured projectors, which means that some nodes in the network will keep their physical interpretation. For many models in engineering, finding structured projectors is not always feasible; however, in the context of biochemical networks it is much more likely as the networks are often (almost) monotonic. To summarise, the method can serve as a trade-off between approximation quality and physical interpretation, which is illustrated on numerical examples. [less ▲]

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See detailOn Projection-Based Model Reduction of Biochemical Networks Part I: The Deterministic Case
Sootla, Aivar ULg; Anderson, James

in Proceedings of the 53rd IEEE Conference on Decision and Control (2014, December)

This paper addresses the problem of model reduction for dynamical system models that describe biochemical reaction networks. Inherent in such models are properties such as stability, positivity and ... [more ▼]

This paper addresses the problem of model reduction for dynamical system models that describe biochemical reaction networks. Inherent in such models are properties such as stability, positivity and network structure. Ideally these properties should be preserved by model reduction procedures, although traditional projection based approaches struggle to do this. We propose a projection based model reduction algorithm which uses generalised block diagonal Gramians to preserve structure and positivity. Two algorithms are presented, one provides more accurate reduced order models, the second provides easier to simulate reduced order models. [less ▲]

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See detailIgE antibodies and FceRI are critical components of protective type 2 immunity against honeybee and russell's viper venom in mice
Starkl, Philipp; Marichal, Thomas ULg; Reber, Laurent L. et al

in Proceedings of the Type 2 Cell Symposium - Brugge (2014, December)

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See detailMotor control and low back pain in elite soccer players
GROSDENT, Stéphanie ULg; Demoulin, Christophe ULg; Namurois, Guy et al

in Abstract Book of 7th Biennial Congress of The Belgian Back Society (2014, December)

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See detailGestes professionnels, propriété d’accompagnement, dispositif de validation des acquis : Trois exemples de couplage entre un dispositif de recherche et un dispositif de formation Symposium court proposé par les universités de Lille 1 et de Liège
Faulx, Daniel ULg; Leclercq, Gilles; Vermelle, Marie-Christine

in Actes du 28ème Colloque de Pédagogie Universitaire (2014, December)

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de ... [more ▼]

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de symposium court s’inscrit dans la continuité des recherches menées dans le pôle Codeus du laboratoire Trigone Cirel[1] et de l’Unité d’Apprentissage et de Formation continue des Adultes de l’Université de Liège (UAFA-ULg)[2]. Nous l’avons intitulé : gestes professionnels, propriété d’accompagnement et dispositif de validation des acquis ; trois exemples de couplage entre un dispositif de recherche et un dispositif de formation. Dans les trois contributions que nous proposons, il sera en effet question de l’association entre une activité de recherche qui se nourrit d’une activité de formation et d’une activité de formation qui exploite l’activité de recherche. Cela nous permettra de rendre compte de travaux menés en cours de formation à des échelles différentes : - à l’échelle du geste singulier de l’enseignant pour la première contribution ; - à l’échelle de la propriété d’accompagnement pour la deuxième ; - à l’échelle d’un dispositif de validation des acquis de l’expérience pour la troisième. Nous commencerons donc ce symposium en ciblant une préoccupation d’ordre micro-pédagogique pour en arriver, par la suite, à des préoccupations plus englobantes. Cela nous permettra de questionner, de différents points de vue, les modalités de collaboration entre dispositifs de formation et dispositifs de recherche, ce qui nous conduira à engager un débat autour des questions suivantes : -.comment les dispositifs de recherche mis en œuvre s’emparent-t-il des dispositifs de formation ? - comment le matériau de recherche est-il collecté, choisi, interprété, analysé, discuté ? - quels sont les cadres de références théoriques et méthodologiques mobilisés, à quoi servent-ils ? - comment l’activité de recherche est-elle distribuée entre les acteurs ? [less ▲]

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See detailL'invasion de la Belgique, première phase du plan Schlieffen-Moltke
Bechet, Christophe ULg

in La Bataille de Charleroi, 100 ans après (2014, December)

Les mouvements des troupes allemandes en Belgique pendant les mois d'août et septembre 1914 sont le fruit d'une réflexion stratégique antérieure à la guerre. Cet article cherche à tisser le lien entre la ... [more ▼]

Les mouvements des troupes allemandes en Belgique pendant les mois d'août et septembre 1914 sont le fruit d'une réflexion stratégique antérieure à la guerre. Cet article cherche à tisser le lien entre la pensée stratégique allemande d'avant-guerre et les décisions qui furent réellement prises en 1914, dans le feu de l'action. [less ▲]

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See detailPathology. What is found in patients that are referred for further investigations ?
TOMASELLA, Marco ULg

in Abstract Book Neck complaints. A 360° view. (2014, November 29)

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See detailIsocinétisme et tendinopathies
Croisier, Jean-Louis ULg; Kaux, Jean-François ULg; Crielaard, Jean-Michel ULg et al

in Abstract Book des XVIèmes Rencontres isocinétiques de Médimex (2014, November 28)

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See detailTracking stressed blood volume during vascular filling experiments
Pironet, Antoine ULg; Dauby, Pierre ULg; Chase, J. Geoffrey et al

in 13th Belgian Day on Biomedical Engineering (2014, November 28)

A three-chamber cardiovascular system model is used to compute stressed blood volume from filling experiments. As previously observed, stressed blood volume is a good predictor of the change in cardiac ... [more ▼]

A three-chamber cardiovascular system model is used to compute stressed blood volume from filling experiments. As previously observed, stressed blood volume is a good predictor of the change in cardiac output after fluid infusion. [less ▲]

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See detailEvaluation de la fatigue musculaire des membres supérieurs
Forthomme, Bénédicte ULg; Kaux, Jean-François ULg; Crielaard, Jean-Michel ULg et al

in Abstract Book des XVIèmes Rencontres isocinétiques de Médimex (2014, November 28)

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See detailEstimating Ventricular Stroke Work from Aortic Pressure Waveform
Kamoi, Shun; Pretty, Christopher; Chiew, Yeong Shiong et al

in 13th Belgian Day on Biomedical Engineering (2014, November 28)

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See detailTowards a European consensus for prevention of GBS neonatal disease: old and new tools
MELIN, Pierrette ULg

in Abstract book of the 30th Scientific seminar on Infectious Diseases (2014, November 27)

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See detailIn vitro hemocompatibility assessment of Near-IR-Emitting Ag2S Quantum Dots (QD)
Grandfils, Christian ULg; Hocaoglu, I.; Demir, F. et al

in Proceeding of the Nanobiotechnology International Workshop (2014, November 26)

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See detailDesign and implementation of a T impedance matching network for the radiocommunication subsystem aboard the OUFTI-1 nanosatellite
Boutaayamou, Mohamed ULg; Crosset, Nicolas ULg; Werner, Xavier ULg et al

in Proceedings of the URSI Forum 2014 (2014, November 18)

We describe how we handled an unexpected impedance matching issue on the receiver side (at UHF) of the radiocommunication system aboard the OUFTI-1 nanosatellite of the University of Liège. Our approach ... [more ▼]

We describe how we handled an unexpected impedance matching issue on the receiver side (at UHF) of the radiocommunication system aboard the OUFTI-1 nanosatellite of the University of Liège. Our approach relied on a combination of novel analytical developments combined with experimentation. [less ▲]

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See detailPlate-forme interactive au service des grandes populations d’étudiants suivant un cours de Physique
Marique, Pierre-Xavier ULg; Hoebeke, Maryse ULg

in Conférence TICE 2014, Actes (2014, November 18)

La réforme des études de médecine introduite en 2012 en Communauté Française (Belgique) a fortement modifié les programmes de cours, entre autres celui de physique, pour lequel certaines notions sont ... [more ▼]

La réforme des études de médecine introduite en 2012 en Communauté Française (Belgique) a fortement modifié les programmes de cours, entre autres celui de physique, pour lequel certaines notions sont désormais considérées comme prérequises. Conscientes que celles-ci ne sont pas toujours acquises par les étudiants, les équipes pédagogiques de l'ULg ont élaboré des systèmes de remédiation. Un espace en ligne a notamment été développé, parallèlement au cours présentiel, afin de permettre aux enseignants et aux étudiants d'évaluer les difficultés et lacunes de ces derniers et d’y remédier. Cet outil est conçu pour offrir une aide spécifique adaptée à chacun malgré le nombre important d’étudiants inscrits (800 en 2013). Ils peuvent y travailler, de manière progressive et autonome, les aspects théoriques (notes et tests formatifs) et pratiques (exercices, problèmes décomposés ou non). Des tests diagnostiques en début et fin de parcours permettent aux apprenants d’apprécier leur évolution. De plus, la plate-forme centralise différents outils interactifs (forums, calendrier, annonces, …) accompagnant l’étudiant dans l’organisation de son parcours. Les premières analyses de traces indiquent une corrélation entre travail en ligne et réussite. Une adaptation progressive de l’outil sera basée sur l’analyse des résultats et du ressenti de étudiants. [less ▲]

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See detailgammaMAXT: a fast multiple-testing correction algorithm
Van Lishout, François ULg; Gadaleta, Francesco ULg; Moore, Jason H. et al

in ERCIM 2014 Abstract Book (2014, November 12)

The purpose of the maxT algorithm (1993) is to control the family-wise error rate (FWER) when assessing significance of multiple tests jointly. However, the requirements in terms of computing time and ... [more ▼]

The purpose of the maxT algorithm (1993) is to control the family-wise error rate (FWER) when assessing significance of multiple tests jointly. However, the requirements in terms of computing time and memory of this procedure are proportional to the number of investigated hypothesis. The memory issue has been solved by Van Lishout’s implementation of maxT (2013), which makes the memory usage independent from the size of the dataset. This algorithm is implemented in MBMDR-3.0.3, a software that is able to identify genetic interactions, for a variety of SNP-SNP based epistasis model,s in an effective way. However, that implementation turned out to be less suitable for genome-wide interaction analysis studies, due to the prohibitive computational burden. Here, we present gammaMAXT, a novel algorithm which is part of MBMDR-4.2.2. We show that, in the abscence of interaction effects, test-statistics produced by the MB-MDR methodology follow a mixture distribution with a point mass at zero and a shifted gamma distribution for the top 10% of the strictly positive values. We show that the gammaMAXT algorithm has a power comparable to maxT and maintains FWER, but requires less computational resources and time. MBMDR-4.2.2 can be downloaded at http://www.statgen.ulg.ac.be. [less ▲]

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See detailDISTRIBUTION OF CAPSULAR POLYSACCHARIDES OF STREPTOCOCCUS AGALACTIAE STRAINS FROM URUGUAY. MULTIPLEX PCR VERSUS CONVENTIONAL CAPSULAR SEROTYPING
Rodriguez Cuns, Grisel ULg; BOREUX, Raphaël ULg; ADAMS, Pauline et al

in XIX Lancefield International Symposium on Streptococci and Streptococcal Diseases, Program and Abstract book (2014, November 11)

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See detailComparison of Life cycle Impact Assessment methods in a case of crop in Northern France
Merchan, Angel ULg; Combelles, Agathe

in Proceeding of the 4th international conference on Life Cycle approaches (2014, November 05)

Life Cycle Assessment (LCA) applied to the agri-food sector has been rapidly developing in the last years, however initiatives like Agribalyse® have shown the lack of consensus making on the impact ... [more ▼]

Life Cycle Assessment (LCA) applied to the agri-food sector has been rapidly developing in the last years, however initiatives like Agribalyse® have shown the lack of consensus making on the impact assessment phase (choice of characterization methods). A review of the proceedings of the 8th International Conference on Life Cycle Assessment in the Agri-Food Sector (LCAFood 2012) revealed the absence of prevalence of a life cycle impact assessment (LCIA) method, where several calculation methods and variations of them are used. [less ▲]

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See detailIncorporate agroecology within research : The on-going story of four young researchers
Hatt, Séverin ULg; Artru, Sidonie ULg; Boeraeve, Fanny ULg et al

in Broadening Scopes on Food, Squeezing Urban Hinterlands (2014, November 04)

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See detailPollution and Siltation of Rivers in the Western Highlands of Cameroon: a Consequence of Farmland Erosion by Runoff
Djoukeng, Henri Grisseur ULg; Tankou, Christopher Mubeteneh; Degré, Aurore ULg

in ASABE, (Ed.) 21st Century Watershed Technology Conference and Workshop: Improving water quality and environment: Hamilton 3-7 November 2014 (2014, November 03)

In the western highlands agro-ecological zone of Cameroon, rivers are constantly silted and polluted with waste from cultivated plots. This study investigated on the characterization and quantification of ... [more ▼]

In the western highlands agro-ecological zone of Cameroon, rivers are constantly silted and polluted with waste from cultivated plots. This study investigated on the characterization and quantification of sediment from plots cultivated in the watershed Méloh; among these sediment we highlighted soil, plant residues, chemical packages and plastic casing used for irrigation. In a natural rocky bottom wells, we performed for a period of three years the collection, differentiation and measurement of trapped sediment in the cultivated part of river that runs through the watershed. The total cultivated area is about 7.5 ha; slopes are operated between 14% and 17%. During the years 2012 and 2013 where farmers practiced both flatbed and ridging along the steepest slope, two methods of land preparation that do not contribute positively to water conservation, we collected an average of 10.429 t.ha-1. During the 2013 crop year, with the participation of curious farmers we experimented tied ridging in a potato; this technique was adopted on 75% of plots in 2014 and we collected 3.586 t.ha-1, a decrease of 65.61% compared to the average of previous years. This study showed that traditional agricultural practices are a cause of siltation and pollution of the Méloh river, thus almost all rivers in the study area by what the topography is similar and agriculture the main activity. Tied ridging significantly reduced siltation of rivers; it is thus an effective technique to fight against water pollution in mountain agriculture. [less ▲]

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See detailJupiter’s polar auroral dynamics
Grodent, Denis ULg; Bonfond, Bertrand ULg

in AAS/Division for Planetary Sciences Meeting Abstracts (2014, November 01)

The morphology of Jupiter’s ultraviolet aurora is commonly described in terms of components located inside (poleward of) or outside (equatorward of) the main oval emission. These components may also be ... [more ▼]

The morphology of Jupiter’s ultraviolet aurora is commonly described in terms of components located inside (poleward of) or outside (equatorward of) the main oval emission. These components may also be discriminated by their temporal behaviour, where the narrowest parts of the main “oval” remain relatively stable over time periods of several hours, and the satellite footprints show large variability with timescales of minutes. Inside the main emission the so-called polar aurora, presumably corresponding to the polar cap mixing open and closed magnetic field lines, is characterized by rapid motions taking the form of swirls, giving rise to the “swirl region” and by intermittent brightenings in the “active region”. Coarse analysis of these motions suggests that they are too fast to respond to an equatorial magnetospheric forcing. Instead, they appear to be related to processes taking place in or above the ionosphere where distances travelled by plasma waves match those of the subtended auroral emission. Here, we present a preliminary improved analysis of the auroral motion in the polar region based on the application of an iterative “Advection Corrected Correlation Image Velocimetry” (ACCIV) method (Asay-Davis et al., 2009). This method allows one to build velocity fields quantifying local and overall auroral motions which may then be used to constrain their origin. [less ▲]

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See detailSearch for Satellite Effects on Saturn's Auroras in Cassini UVIS Data
Pryor, Wayne R.; Esposito, Larry; Jouchoux, Alain et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2014, November 01)

The Cassini UVIS has been obtaining Saturn auroral images since 2004. We have previously reported instances when the main auroral oval brightened briefly in a quasi-periodic fashion near the sub-Mimas ... [more ▼]

The Cassini UVIS has been obtaining Saturn auroral images since 2004. We have previously reported instances when the main auroral oval brightened briefly in a quasi-periodic fashion near the sub-Mimas longitude. Here we examine the large set of auroral images obtained from close range and high sub-spacecraft latitudes. We will plot the brightness of the individual auroral measurements as a function of local time, and as a function of the location of Mimas and other moons to test for any correlations. [less ▲]

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See detailMagnetic fields in O stars
Nazé, Yaël ULg

in Mathys, Gauthier; Griffin, E.; Kochukhov, O. (Eds.) et al proceedings of "Putting A-stars into context" (2014, November 01)

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such ... [more ▼]

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such magnetic fields on the stellar winds of O-stars, with emphasis on variability and X-ray emission. [less ▲]

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See detailResponse of Microchannel Plate (MCP) Detectors to MeV Electrons: Beamline tests in support of Juno, JUICE, and Europa Mission UVS instrument investigations
Retherford, Kurt D.; Davis, Michael W.; Greathouse, Thomas K. et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2014, November 01)

The response of Microchannel Plate (MCP) detectors to far-UV photons is excellent. MCPs provide a photon-counting capability that is especially useful for high-quality stellar and solar occultation ... [more ▼]

The response of Microchannel Plate (MCP) detectors to far-UV photons is excellent. MCPs provide a photon-counting capability that is especially useful for high-quality stellar and solar occultation measurements. However, use of MCPs within the Jovian magnetosphere for UV measurements is hampered by their ~30% detection efficiency to energetic electrons and ~1% efficiency to γ-rays. High-Z shielding stops energetic electrons, but creates numerous secondary particles; γ-rays are the most important of these for MCPs. These detected particles are a noise background to the measured far-UV photon signal, and at particularly intense times their combination can approach detector global count rates of ~500 kHz when operating at nominal HV levels. To address the challenges presented by the intense radiation environment experienced during Europa encounters we performed electron beam radiation testing of the Juno-UVS flight spare cross-delay line (XDL) MCP in June 2012 at MIT’s High Voltage Research Laboratory (HVRL), and again in Nov. 2013 adding an atomic-layer deposition (ALD) coated test-MCP, to measure the detection efficiency and pulse height distribution characteristics for energetic electrons and γ-rays. A key result from this UVS-dedicated SwRI IR&D project is a detailed characterization of our XDL’s response to both particles (electrons and γ-rays) and photons as a function of HV level. These results provide confidence that good science data quality is achievable when operating at Europa closest approach and/or in orbit. Comparisons with in-flight data obtained with New Horizons Pluto-Alice MeV electron response measurements at Jupiter (Steffl et al., JGR, 2012), LRO-LAMP electron and proton event data, and Juno-UVS Earth proton-belt flyby data, and recent bench tests with radioactive sources at Sensor Sciences increase this confidence. We present a description of the test setup, quantitative results, and several lessons learned to help inform future beamline test experiments dedicated to instrument developments for NASA's next large mission to Europa and ESA's JUICE mission to Ganymede. [less ▲]

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See detailMASH2-0 Electromechanical Sigma-Delta Modulator for capacitive MEMS sensors using dual quantization method
Almutairi, B; Alsheri, A; Kraft, Michael ULg

in Proceedings of "IEEE Sensors Conference : Espagne - Novembre 2014" (2014, November)

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See detailReference values for the craniocervical flexion test in healthy volunteers
Demoulin, Christophe ULg; Hody, Stéphanie ULg; GROSDENT, Stéphanie ULg et al

in Abstract Book of 7th Biennial Congress of The Belgian Back Society (2014, November)

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See detailPhotoelectric Conversion Effect in Non-Photovoltaic Photorefractive Materials
Frejlich, Jaime; De Oliveira, Ivan; Carvalho, Jesiel et al

in Latin America Optics & Photonics Conference (LAOP) - OSA Technical Digest (online) (2014, November)

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See detailEvalulating the additional value of the illness perceptions questionnaire in patients with chronic low back pain
Leysen, M; Nijs, J; Van Wilgen, CP et al

in Abstract Book of 7th Biennial Congress of The Belgian Back Society (2014, November)

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See detailWireless time synchronization of a collaborative brain-computer-inteface using Bluetooth low energy
Ghoshdastider, U; Viga, R; Kraft, Michael ULg

in Proceedings of "IEEE Sensor Conference : Espagne - Novembre 2014" (2014, November)

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See detailCMOS potentiostat and sensor with multilayer membrane for wide range measurements of glucos concentrations
Mross, S; Fürst, P; Pierrat, S et al

in Proceedings of "IEEE Sensor Conference : Espagne - Novembre 2014" (2014, November)

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See detailSocio-economic characteristics of Fulani's households in Northeastern Benin
Chabi Toko, Roukayath ULg; Adegbidi, Anselme; Lebailly, Philippe ULg

in Kovacevic, Dusan (Ed.) Book of proceeding Fourth International Scientific Agricultural Symposium "Agrosym 2014" (2014, November)

Fulani belong to a socio-cultural group predominantly met in western Africa and usually raises cattle. Known as a nomadic group, Fulani have become increasingly more settled and combine crop farming with ... [more ▼]

Fulani belong to a socio-cultural group predominantly met in western Africa and usually raises cattle. Known as a nomadic group, Fulani have become increasingly more settled and combine crop farming with livestock husbandry. In Benin Fulani are predominant in the two eastern departments of the north. This community plays a key role in meat and milk supply in the country. But deep information on their household characteristics is scarce so that specific development actions concerning their activities are scarce. This study was carried out to characterize their household and highlight their livelihood strategies in the three agroecological conditions of the study area. 150 Fulani livestock keepers randomly selected were interviewed in 2013. The results show that the average household size is 18 people of which 22% are directly involved in cattle farming. The land is mostly inherited and the average size for a household is about 10.5 ha. Half of the land size is devoted to crops farming mainly 80% for home consumption and 17% to cotton production. Their livestock includes cattle, sheep, goats and poultry (chickens and Guinea fowl). Cattle represent 50% of the household livestock size. Cattle provide daily milk consumed at 51%; the rest is sold. Fulani also sell in average one cattle per month. In less favorable ecological conditions, they derive their income mainly from livestock. While in the regions where it rains more, they diversify their incomes by investing in food crops and cash crop (cotton mainly) farming. [less ▲]

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See detailRécit de vie d’une sainte en devenir dans le sillage des Pères de la Foi : le portrait de Julie Billiart, fondatrice des Sœurs de Notre-Dame, par sa compagne, Françoise Blin de Bourdon
Henneau, Marie-Elisabeth ULg

in Mostaccio, Silvia; Caffiero, Marina; de Maeyer, Jan (Eds.) et al Échelles de pouvoir, rapports de genre, Femmes, jésuites et modèle ignatien dans le long XIXe siècle (2014, November)

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See detailA preliminary analysis of the quality of pediatric medicines supplied by private wholesalers in Kinshasa, DRC
Schiavetti, Benedetta; Ngeleka Mutolo, Daniel; Marini Djang'Eing'A, Roland ULg et al

in Abstract Book, Supplement to the American Journal of Tropical Medicine and Hygiene (2014, November)

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See detailTwo-degree of freedom capacitive MEMS velocity sensor with two coupled electrically isolated mass-spring-damper systems
Alshehri, A; Almutairi, B; Gardonio, P et al

in Proceedings of "IEEE Sensor Conference : Espagne - Novembre 2014" (2014, November)

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See detailThe effect of sampling effort on mammalian paleodiversity: the fossil record of large and small mammals compared
Santaella, Beatriz; Figueirido, Borja; Cascales - Miñana, Borja ULg et al

in Journal of Vertebrate Paleontology, Program and Abstracts, 2014 (2014, November)

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See detailANÁLISE DE REQUISITOS PARA AVALIAÇÃO DE QUALIDADE GEOMÉTRICA NO REGISTRO DO PATRIMÔNIO ARQUITETÔNICO COM TÉCNICAS FOTOGRAMÉTRICAS
Campos, Mariana Batista; De Moraes, Marcus Antunes; Tommaselli, Antonio Maria Garcia et al

in Nome, Carlos Alejandro; de Magalhães Cordeiro, Aristóteles Lobo; Rocha, Germana Costa (Eds.) Anais ARQDOC 2014 INFORMAÇÃO E CONHECIMENTO PARA PRESERVAÇÃO (2014, November)

The documentation of the cultural heritage is a concern since 1885, with the first application of photogrammetry techniques by Albrecht Meydenbauer. In 1987, The International Council of Monuments and ... [more ▼]

The documentation of the cultural heritage is a concern since 1885, with the first application of photogrammetry techniques by Albrecht Meydenbauer. In 1987, The International Council of Monuments and sites has recommended the creation of photogrammetry records of monuments and archaeological sites. Since then, the close range photogrammetry has been the most used technique to survey cultural heritage. This technique has become faster and more accessible with the advancement of digital cameras. Despite the recommendations of International Council of Monuments and sites, the advent of new technologies and the importance of a quality evaluation and documentation, there are few studies with a rigorous analysis of the requirements for the cultural heritage documentation, with focus on the geometry of the models generated by digital photogrammetry process. The aim of this work is to propose discussions and analysis of requirements for the evaluation of planimetric quality of photogrammetric projects applied to the cultural heritage documentation. [less ▲]

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See detailGBS and antibiotic resistance: threat to therapy
MELIN, Pierrette ULg

in XIX Lancefield International Symposium on Streptococci and Streptococcal Diseases, Program and Abstract book (2014, November)

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See detailLe TSM (Test Spectral Métacognitif) : 10 caractéristiques pour relever 5 défis de la formation
Leclercq, Dieudonné ULg

in Actes du 28° Congrès de l'AIPU 2014 Mons Belgique du 18 au 22 mai 2014 (2014, October 30)

Les cinq défis de l'éducation auxquels le TSM vise à apporter des réponses relèvent (1) de la maîtrise d'un domaine disciplinaire, (2) de la maîtrise de'habiletés et compétences générales comme la ... [more ▼]

Les cinq défis de l'éducation auxquels le TSM vise à apporter des réponses relèvent (1) de la maîtrise d'un domaine disciplinaire, (2) de la maîtrise de'habiletés et compétences générales comme la vigilance cognitive et la lecture de consignes, (3) de compétences métacognitives, (4) du développement épistémique et (5) de la motivation à apprendre. Par 10 caractéristiques, le TSM vise à contribuer à ces cinq défis A LA FOIS. Après une introduction théorique à la problématique, un TSM de démonstration (de 16 questions) est présenté. l-Le lecteur peut l'expérimenter sur lui-même, puis télécharger les réponses correctes et enfin traiter ses résultats. [less ▲]

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See detailCharpentes anciennes en région Bruxelles-Capitale : réalisation d’un inventaire typologique et dendrochronologique
Weitz, Armelle ULg; Charruadas, Paulo ULg; Cremer, Sarah et al

in Charpentes historiques en bois de la construction à la restauration (2014, October 21)

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See detailInsights upon the adsorption mechanism of KAX on malachite
Kanda, Jean-Marie; Kongolo, Mukendi; Gaydardzhiev, Stoyan ULg et al

in Yianatos, Juan (Ed.) Proceedings of the XXVII International Mineral Processing Congress (2014, October 20)

The adsorption patterns of potassium amylxanthate on the surface of high purity malachite subjected to prior sulfidization with NaSH have been followed and elucidated. DRIFTS spectroscopy has been used to ... [more ▼]

The adsorption patterns of potassium amylxanthate on the surface of high purity malachite subjected to prior sulfidization with NaSH have been followed and elucidated. DRIFTS spectroscopy has been used to trace the associated physicochemical alterations as well as the chemical species present on the mineral surface. Varying the collector concentration from 5.10-4 to 1.10-2 mol/L has led to different degree of surface coverage of the alkyl groups in combination with formation of organometallic hydrophobic complexes of CuX and CuX – X2 type. The results reveal that the CuX complex formed on the malachite surface without sulfidizing agent is more unstable and prone to dissolution-precipitation phenomena. Based upon the constructed adsorption isotherms and upon the degree of statistical coverage, different zones of mineral-reagent interactions could be distinguished. They correspond respectively to the monolayer, bi-layer and tridimensional condensation domains. In each of the identified zones mono or double layer adsorption patterns of the collector are proposed leading respectively to formation of surface compounds with different degree of hydrophobicity. [less ▲]

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See detailPhysicochemical observations during process water reuse in flotation of oxide copper-cobalt ore
Shengo, Michel; Gaydardzhiev, Stoyan ULg; Kalenga, Pierre

in Yianatos, Juan (Ed.) Proceedings of the XXVII International Mineral Processing Congress (2014, October 20)

Lab-scale flotation of copper and cobalt oxidized ore from the Luiswishi deposit in the Katanga province (DRC) has been done focusing on the influence of the degree of process water recycling on metals ... [more ▼]

Lab-scale flotation of copper and cobalt oxidized ore from the Luiswishi deposit in the Katanga province (DRC) has been done focusing on the influence of the degree of process water recycling on metals recovery. Results have shown that at 20 % recycling rate, the recovery of copper and cobalt in the cleaner stage have been respectively reduced to 23 % and 45 % in comparison to 53 % Cu and 63 % Co if process water has not been recycled. At 10 % recycling rate however, the system could still tolerate the effect from recycling, since Cu and Co recovery has remained respectively at acceptable levels of 52 % and 60 %. In order to explain the reasons for the observed worsening of flotation results if process water was recycled at rate higher than 20 %, electrochemical investigation of the pulp has been performed. It has been established that the chemical compounds formed in the pulp when process water was recycled, do influence the sulfidization of malachite and heterogenite and impact further collector adsorption. To confirm these assumptions, the effect from thiosulphate ions presence during the sulfidization of high purity malachite has been studied. It has been found, that thiosulphate ions depending on their concentration in water induce variations in pulp properties such as DO content, pH, Es and contribute to formation of undesirable chemical compounds on mineral surface as identified by DRIFT spectroscopy. [less ▲]

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See detailThe Airline Container Loading Problem with Pickup and Delivery
Lurkin, Virginie ULg; Schyns, Michael ULg

in Airline Group of the Intl Federation of Operational Research Soc ( AGIFORS ) (Ed.) 54th AGIFORS Annual Proceedings 2014 (2014, October 19)

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at ... [more ▼]

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at intermediate airports, this problem is simultaneously a weight and balance problem and a sequencing problem. Our objective is to minimize fuel and handling operations costs. This problem is shown to be NP-hard. We resort to a mixed integer linear program. On the basis of a professional partner's real-world data, TNT Airways, we perform numerical experiments using a standard B&C library. This approach yields better solutions than traditional manual planning, which results in substantial cost savings. [less ▲]

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See detailCharacterization of paragangliomas : a single center cohort study
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; PETROSSIANS, Patrick ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailFamilial hypocalciuric hypercalcemia : a rare cause of recurrent pancreatitis
Daniel, Sara ULg; Potorac, Iulia ULg; MALAISE, Olivier ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailA novel mutation of the luteinizing hormone/choionic gonadotrophin receptor gene leading to Leydig cell hypoplasia type I
Potorac, Iulia ULg; Rivero-Müller, Adolfo; Pintiaux, Axelle ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailOptimal Assignment of Off-Peak Hours to Lower Curtailments in the Distribution Network
Merciadri, Luca ULg; Mathieu, Sébastien ULg; Ernst, Damien ULg et al

in Proceedings of the 5th European Innovative Smart Grid Technologies (ISGT) (2014, October)

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods ... [more ▼]

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods. Historically, off-peak periods were located during the night and on-peak periods during the day. Changing the assignment of off-peak periods is an easy method for distribution system operators to access to the flexibility of small consumers. This solution can be implemented quickly as the infrastructure needed already exists in some countries. We propose a mixed-integer linear model to assign optimally the off-peak hours so as to minimize a societal cost. This cost gathers together the cost of electricity, the financial losses due to energy curtailments of photovoltaic installations and the loads' wellbeing. Our model considers automatic tripping of inverters and constraints of the electrical distribution networks. Simulation results show that the new disposition of off-peak hours could reduce significantly the photovoltaic energy curtailed in the summer. [less ▲]

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See detailDysthyroïdies iatrogènes
Maiga, Ibrahima ULg; VALDES SOCIN, Hernan Gonzalo ULg; DELWAIDE, Jean ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailTrace element bioaccumulation and compartmentalization in the invasive algae Caulerpa racemosa var. cylindracea from the Calvi Bay, Corsica
Gobert, Sylvie ULg; Richir, Jonathan ULg

in Langar, H.; Bouafif, C.; Ouerghi, A. (Eds.) Proceedings of the 5th Mediterranean Symposium on Marine Vegetation (2014, October)

The algae Caulerpa racemosa var. cylindracea (Sonder) was first observed along Corsican coasts in 2002 (Ruitton et al., 2005), and more recently in the Calvi Bay (northwestern Corsica) in 2008. Numerous ... [more ▼]

The algae Caulerpa racemosa var. cylindracea (Sonder) was first observed along Corsican coasts in 2002 (Ruitton et al., 2005), and more recently in the Calvi Bay (northwestern Corsica) in 2008. Numerous works have studied the distribution of that invasive species and the factors driving its rapid expansion, as well as the resulting ecological impacts on native coastal communities (Klein and Verlaque, 2008). However, very little is known regarding C. racemosa biochemistry and its natural ability to concentrate trace elements (TEs). In the framework of the STARECAPMED project, this work therefore aimed to study the bioaccumulation and the compartmentalization of 19 TEs in this macroalgae. [less ▲]

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See detailLe cancer thyroïdien papillaire familial (FNMTC): études cliniques et génétiques chez 8 familles
VALDES SOCIN, Hernan Gonzalo ULg; Daly, Adrian ULg; Burlacu, C et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailVelocity and turbulence measurements for assessing the stability of riverbeds: a comparison between UVP and ADVP
Duma, Diana ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in 11th International Conference on Hydroscience & Engineering - "Hydro-Engineering for Environmental Challenges" (2014, October)

Maintaining the overall stability of active riverbeds requires a deep understanding of the complex interactions between turbulent flow forces and forces stabilizing the riverbed. Standard approaches do ... [more ▼]

Maintaining the overall stability of active riverbeds requires a deep understanding of the complex interactions between turbulent flow forces and forces stabilizing the riverbed. Standard approaches do not properly take into account the turbulence fluctuations in non-uniform flows, while these are of primary importance in the mechanisms determining the stability of stones. In a new approach, the flow forces are quantified by means of parameters combining explicitly the velocity and turbulence distributions over a certain water depth above the riverbed. In this paper, as an onset for using these newly developed bed stability parameters, we report on new experimental measurements of velocity and turbulent kinetic energy based on acoustic methods, whereas all previous uses at the new bed stability parameters relied on Laser PIV Techniques. For quasi-uniform and non-uniform flow conditions, velocity measurements were conducted with two complementary devices: an ultrasonic velocimeter probe (UVP) and an acoustic Doppler velocimeter profiler (ADVP). The results are compared and discussed in detail. A general consistency between the two types of measurements is obtained, while some discrepancies are highlighted close to the bed and tentative explanations are given. [less ▲]

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See detailDevelopment of an implantable integrated MEMS pressure sensor using polyimide epoxy composite and Atomic Layer Deposition for encapsulation
Gembaczka, P; Görtz, M; Kraft, Michael ULg

in Proceedings of "48th DGBMT Annual Conf. : Hannover, Germany Octobre 2014" (2014, October)

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See detailImplantable sensor to measure liquor pressure of a ventricular drainage system
Görtz, M; vom Bögel, G; Kraft, Michael ULg

in Proceedings of "48th DGBMT Annual Conf. : Hannover, Germany Octobre 2014" (2014, October)

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See detailMacroprolactinome pédiatrique sporadique associé à une mutation germinale AIP R304Q: Rémission quatre ans après l'interruption d'un traitement par Cabergoline.
VALDES SOCIN, Hernan Gonzalo ULg; Potorac, Iulia ULg; Janin, N et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailLe puits du château fort de Logne (Ferrières, province de Liège, Belgique)
Wéry, Benoît; Hoffsummer, Patrick ULg; Delye, Emmanuel ULg

in Gautier, Delphine; Mouillebouche, Hervé (Eds.) L'eau dans le château. Actes du troisième colloque international au château de Bellecroix (2014, October)

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See detailOPPORTUNITIES AND CHALLENGES OF WOMEN CASSAVA PRODUCERS IN BITYILI (SOUTH-CAMEROON) AND THE IMPLICATIONS FOR GENDER ROLES
Moma, Crescence ULg

in Kovacevic, Dusan; Berjan, Sinisa; Jugovic, Milan (Eds.) et al BOOK OF PROCEEDINGS Fifth International Scientific Agricultural Symposium “Agrosym 2014”:Jahorina, October 23 - 26, 2014 (2014, October)

In Cameroon, rural women have a significant role in farming and post-harvest activities. Nevertheless, a complex set of rights and obligations reflecting social and religious norms prevail within rural ... [more ▼]

In Cameroon, rural women have a significant role in farming and post-harvest activities. Nevertheless, a complex set of rights and obligations reflecting social and religious norms prevail within rural communities, these dictate the division of labour between men and women and act as constraints to women farmers. In fact, women fulfil the reproductive roles of child bearing, home management and food provision for the family. Thus, these women are unable to exercise any influential economic voice, they can hardly earn income. Cash agriculture like cassava production provides a possible outlet for the empowerment of these women in cassava producing areas. However, this agricultural work would solve one problem for the women and create another. Any attempt to encourage these women to work outside their homes may increase their workload. This paper examine the situation of female cassava farmers in Bityili, a village of South region of Cameroon, by evaluating the gender specificities within division of labour, daily hours, access and control of resources and benefits. To address this, 44 women cassava producers-processors were randomly selected and interviewed. Both quantitative and qualitative methodologies were used, including focus group discussions, participant observation, and semi-structured interviews. Quantitative data were analysed using descriptive statistics. The results show that although cassava production may have been beneficial to women and the society as a whole, it has implications for gender roles that go beyond the purview of women’s empowerment. [less ▲]

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See detailRugose corals at the Tournaisian-Viséan transition in the Central Taurides (S Turkey) - Palaeobiogeography and Palaeoceanography of the Gondwana margin
Denayer, Julien ULg

in 4th International Palaeontological Congress, Mendoza, Abstracts volume (2014, October)

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See detailIsocinétisme et muscles rotateurs d'épaule
Forthomme, Bénédicte ULg; Crielaard, Jean-Michel ULg; Kaux, Jean-François ULg et al

in Innovations technologiques et préhension (2014, October)

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See detailModeling of the cardio-pulmonary system assisted by ECMO
Habran, Simon ULg; Dauby, Pierre ULg; Desaive, Thomas ULg et al

in National Day on Biomedical Engineering 2014 (2014, October)

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See detailEconomic evaluation of climate information in Sahel: case of farm households in Burkina Faso
Zongo, Bétéo ULg; Diarra, Abdoulaye; Barbier, Bruno et al

in Book of Proceedings (2014, October)

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See detailNeurofibromatose et phéochromocytome métastatique
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; HAMOIR, Etienne ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailExpression et localisation immunohistochimique de KISS1 et de son récepteur GPR54 : étude du tissu thyroïdien non tumoral et d'une série de patients opérés d'un cancer thyroïdien papillaire
VALDES SOCIN, Hernan Gonzalo ULg; Munaut, Carine ULg; SCAGNOL, Irène ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailHypervitaminémie B12 : un piège diagnostique pour le biologiste et pour le clinicien ?
LUYCKX, Françoise ULg; Texeira, J; VALDES SOCIN, Hernan Gonzalo ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailLeucémie myéloblastique aiguë : sécrétion paranéoplasique de GH et de PRL ?
VALDES SOCIN, Hernan Gonzalo ULg; Potorac, Iulia ULg; DE PASQUAL, Aurelie ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailVirtual process chain combined with online process monitoring for first time right manufacturing of composite structures
Brauner, Christian; Miene, Andrea; Bruyneel, Michaël ULg et al

in NAFEMS Seminar: Simulation von Composites – Eine geschlossene Prozesskette? (2014, October)

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See detailA two-step solution procedure for composite structures optimization including geometric non-linear behaviour, design rules and manufacturing constraints
Bruyneel, Michaël ULg; Zein, Samih; Grihon, Stéphane

in Proceedings of the 4rd Aircraft Structural Design Conference 2014 (2014, October)

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See detailIntérêt du signal T2 des adénomes hypophysaires à GH traités par analogues de la somatostatine - premiers résultats de l'étude IRMA#2
Potorac, Iulia ULg; PETROSSIANS, Patrick ULg; Daly, Adrian ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailThe conceptualization of trace element flows within Posidonia oceanica meadows: a collaborative proposal to fill knowledge gaps
Richir, Jonathan ULg; Gobert, Sylvie ULg

in Langar, H.; Bouafif, C.; Ouerghi, A. (Eds.) Proceedings of the 5th Mediterranean Symposium on Marine Vegetation (2014, October)

The Mediterranean seagrass Posidonia oceanica (L.) Delile is regarded as a relevant indicator of bioavailable trace elements (TEs) since it efficiently and proportionally bioaccumulates these chemicals ... [more ▼]

The Mediterranean seagrass Posidonia oceanica (L.) Delile is regarded as a relevant indicator of bioavailable trace elements (TEs) since it efficiently and proportionally bioaccumulates these chemicals from its surrounding environment. Recent studies have further brought supplementary insights in our understanding of the processes driving TE kinetics within that species. But at a higher degree of organization, the distribution and flows of TEs between P. oceanica meadow components, i.e. seagrass shoots, epiphytes, associated algae and animals and detritus, have not been investigated yet. The present study therefore aims to propose a conceptualization model of P. oceanica meadows, regarded as the juxtaposition of the 5 separate components listed above exchanging flows of TEs between themselves and with their environment, i.e. water and sediment. This model can be drawn in energy circuit language. By writing such a model, one in essence is writing equations describing a system. To be relevant, its elaboration requires the compilation of a large amount of quantitative data. This conceptualization can thus be regarded as a collaborative innovation requiring scientists to fill the model through the continuous supplement of new data. In fine, this model will lead to the exact quantification of the role played by P. oceanica meadows in the coastal biogeochemistry of TEsin the Mediterranean. [less ▲]

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See detailUn phéochromocytome aux multiples mutations
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; Persu, A et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailDysphasie : Réflexions autour de la définition et des critères diagnostiques
Leclercq, Anne-Lise ULg; Maillart, Christelle ULg

in Les entretiens de Bichat : les entretiens d'orthophonie 2014 : Les "dys", état de l'art et orientations cliniques (2014, September 27)

Specific language impairment refers to a non-homogeneous group: linguistic and non-linguistic abilities differ from one child to another. Increasing knowledge in this field has led to clarify both the ... [more ▼]

Specific language impairment refers to a non-homogeneous group: linguistic and non-linguistic abilities differ from one child to another. Increasing knowledge in this field has led to clarify both the definition and the diagnostic criteria in order to facilitate its diagnosis. However, the clinical complexity of this trouble questions the relevance of these diagnostic criteria. The present article intends to think about the clinical diagnostic of specific language impairment in order to allow informed decision making during its assessment and therapy. [less ▲]

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