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See detailHow tracer tests simulations strongly constrain flow and solute transport models in fractured chalk aquifers
Goderniaux, Pascal ULg; Daoudi, Moubarak; Orban, Philippe ULg et al

Conference (2012, May)

Flow and solute transport in the saturated zone of a micro-fissured and fractured chalk aquifer (Geer basin, Belgium) has been studied by more than 35 tracer tests in 11 sites. The tracer tests campaign ... [more ▼]

Flow and solute transport in the saturated zone of a micro-fissured and fractured chalk aquifer (Geer basin, Belgium) has been studied by more than 35 tracer tests in 11 sites. The tracer tests campaign was preceded by a morphostructural study associated to a geophysical survey including electrical resistivity and refraction seismic measurements. Results provided information on the main expected fracturation axis where a series of injection and monitoring wells were drilled. In each of the 11 sites, multi-tracer tests have been performed in groundwater convergent flow conditions to pumping wells or draining galleries (used for drinking water production). The analysis of the detailed quantitative breakthrough curves allowed identifying various transport behaviours, from rapid advective to dominant dispersive processes with immobile water effects. Groundwater flow and solute transport in such a fractured chalk can be simulated using different conceptual approaches. Using HYDROGEOSPHERE (Therrien and Sudicky, 1996), a comparison is made between two ways for representing the fracture zones: (1) high contrasted hydraulic conductivity zones with a classical REV approach and (2) the explicit representation of discrete fractures interacting with a porous medium. Promising results are found using the discrete approach for representing the fractures. In this last case, an aperture of the order of the millimetre is enough for creating, where it is needed, a fast advective peak combined with a long highly dispersive component due to the chalk matrix. The discrete fracture approach prevents the modeller from introducing unrealistic parameters values in the fracture zones as it is generally the case in the classical REV-based method where the fractured zones are simply represented by elongated REV. However, it is shown that the availability of field data, as multi-tracers test results, creates very high constraints to be taken into account in the calibration processes (i.e calibration on the measured groundwater flow and transport conditions). The detailed calibration on the different breakthrough curves is not an easy task and automatic calibration is not easy to organize. Results are particularly illustrative to show that a detailed parameterization and calibration of such a local situation remain difficult. Perspectives will be discussed about the potential use of automatic calibration tools as UCODE_2005 or PEST for solving such local situation models and the needed further steps for ‘upscaling’ local situation models at the scale of the whole aquifer or groundwater body. [less ▲]

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See detailBronze Age Domestic Architecture in Eastern Syria : Familiar, Social and Economic Implications
Mas, Juliette ULg

Conference (2012, May)

This paper dealt with a PhD project on domestic architecture and society on the Syrian Euphrates region and in the Jezirah during the Bronze Age. The large geographical and chronological framework allowed ... [more ▼]

This paper dealt with a PhD project on domestic architecture and society on the Syrian Euphrates region and in the Jezirah during the Bronze Age. The large geographical and chronological framework allowed to collect an important corpus of houses. The analysis of statistical data on their different features allowed interpretations, in particular concerning their functionnal characteristics. The attention is here focused on the crafts and industrial production of the house inhabitants. The contemporary economic system is well known in Southern Mesopotamia, and was there mainly based on official oikoi linked to the temples or to the palace. On the contrary, the analysis of Northern Mesopotamian evidence shows that the economic system in this area was mainly based on private households, the state control probably being there of lesser importance. [less ▲]

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See detailLe droit électoral : régulation de l’accès au Parlement ?
Bouhon, Frédéric ULg

Conference (2012, May)

Malgré un développement considérable de la distribution du pouvoir depuis le début du 19ème siècle, notamment par l’extension progressive des droits électoraux et la rationalisation du découpage électoral ... [more ▼]

Malgré un développement considérable de la distribution du pouvoir depuis le début du 19ème siècle, notamment par l’extension progressive des droits électoraux et la rationalisation du découpage électoral, la législation électorale procure à un nombre restreint d’individus la possibilité d’exercer un contrôle sur l’accès au Parlement. Ce sont essentiellement les dirigeants des principaux partis politiques et les mandataires publics sortants (généralement issus de ces mêmes partis) qui bénéficient de ces moyens d’influencer le déroulement des élections. La démocratie représentative contemporaine est donc un régime politique qui assure une distribution régulée du pouvoir. Les règles de droit électoral jouent un rôle déterminant à cet égard en combinant la distribution d’une partie du pouvoir entre les mains des gouvernés et la concentration d’un reliquat (plus ou moins important) dans les mains d’un nombre limité d’individus. [less ▲]

Detailed reference viewed: 47 (9 ULg)
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See detailIntegrating tools, to approach the development of competencies
Poumay, Marianne ULg

Conference (2012, May)

The presentation will address the problem of integrating different tools in order to support competence development and evaluation amongst students in Higher Education. It will focus on students' self ... [more ▼]

The presentation will address the problem of integrating different tools in order to support competence development and evaluation amongst students in Higher Education. It will focus on students' self-regulation and discuss the difficulty of complementing low-level activities and spend more time with integrated ones,... towards the development of competences. [less ▲]

Detailed reference viewed: 29 (6 ULg)
See detailSea ice as a source of bioavailable iron to the Southern Ocean
Schoemann, Véronique; Lannuzel, Delphine; de Jong et al

Conference (2012, May)

Detailed reference viewed: 27 (3 ULg)
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See detailImplementing a National Routine Genetic Evaluation for Milk Fat Compositions as First Step Towards Genomic Predictions
Gengler, Nicolas ULg; Troch, Thibault ULg; Vanderick, Sylvie ULg et al

Conference (2012, May)

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data ... [more ▼]

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data, in some herds collected since 2007, saturated (SFA) and monounsaturated fatty acid (MUFA) contents in milk are predicted for each test-day. Together with correlated traits as milk, fat and protein yields, estimated breeding values (EBV) are now computed in routine for SFA and MUFA starting in June 2012. A total of 499 821, 392 255, 277 465 fatty acid records were available in first, second and third lactation for this run. A restricted selection index, called NQI (nutritional quality index) was developed that puts a negative weight on SFA, a positive weight on MUFA and restricts changes in milk and fat yields to zero. By using this index for a constant fat content, milk fat will be selected to be less saturated with a high contribution from MUFA. Based on this system a single-step genomic evaluation is under development including the introduction of MACE breeding values for correlated traits. The final step is to offer for owners of genotyped animals, a service to provide them with genomically enhanced NQI. Similar systems are under development in Wallonia for other novel traits (e.g., methane emissions) based on the ability to predict them from MIR spectral data. [less ▲]

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See detailLARGE PENETRATION OF DISTRIBUTED PRODUCTIONS: DYNAMIC LINE RATING AND FLEXIBLE GENERATION, A MUST REGARDING INVESTMENT STRATEGY AND NETWORK RELIABILITY
Schell, Peter; Lilien, Jean-Louis ULg; Nguyen, Huu-Minh ULg et al

Conference (2012, May)

Dynamic Line Rating (DLR), a.k.a determining the maximum rating of overhead lines based on real-time weather parameters has the potential to significantly increase the power transport & distribution ... [more ▼]

Dynamic Line Rating (DLR), a.k.a determining the maximum rating of overhead lines based on real-time weather parameters has the potential to significantly increase the power transport & distribution capacity of the grid in favorable weather conditions. Combining active network management (curtailable generation) with DLR as trigger offers a solution out-there for the <br />system operator that combines technical feasibility, adequate implementation timing and economic viability. Flexible generation being already in use on the ELIA network, the potential benefits of using it in conjunction with DLR will be analyzed. [less ▲]

Detailed reference viewed: 108 (56 ULg)
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See detailInfluence of monopalmitin on the crystallization behaviour of palm oil
Verstringe, Stefanie; Danthine, Sabine ULg; Depypere, Frederic et al

Conference (2012, May)

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See detailInverse dynamics of parallel kinematic manipulators with flexible links
Guimaraes Bastos Junior, Guaraci ULg; Seifried, Robert; Bruls, Olivier ULg

Conference (2012, May)

Detailed reference viewed: 38 (11 ULg)
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See detailSharing representations in distant synchronous collaborative design : framework, technological proposal and scientific issues.
Safin, Stéphane ULg

Conference (2012, May)

This chapter addresses the issue of sharing in collaborative design by the use of an original system developed in the LUCID-ULg Lab. The Distributed Collaborative Design Studio (DCDS) is a remote ... [more ▼]

This chapter addresses the issue of sharing in collaborative design by the use of an original system developed in the LUCID-ULg Lab. The Distributed Collaborative Design Studio (DCDS) is a remote workspace environment aiming to emulate, at a distance, the conditions of face-to-face meetings. It is designed to allow designers to interact collaboratively at distance on a shared workspace, thanks to «natural» pen-based interaction. This documents sharing and real-time collaborative annotations are supposed to enhance awareness and grounding dur- ing collaboration in design domains. In this chapter, we explicit the theoretical rationale for sharing in collaborative design, briefly describe the DCDS, summarize the observations we made relative to resources sharing (plans, pictures, documents and so on), and conclude on the theoretical and methodological issues to be addressed to deepen our knowledge about sharing external representations in design, to enhance the system and to adapt it to other contexts. [less ▲]

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See detailThe impact of aging and hearing status on verbal short-term memory
Verhaegen, Clémence ULg; Collette, Fabienne ULg; Majerus, Steve ULg

Conference (2012, May)

We determined the impact of hearing status on age-related effects on verbal short-term memory (STM). Rabbit (1991) observed that elderly participants with hearing loss show impaired STM; he suggested that ... [more ▼]

We determined the impact of hearing status on age-related effects on verbal short-term memory (STM). Rabbit (1991) observed that elderly participants with hearing loss show impaired STM; he suggested that in the case of hearing loss, attentional resources had to be recruited to a larger extent to stimulus perception, reducing the available pool of attentional resources for STM processing. We tested this hypothesis by distinguishing the impact of aging from the impact of hearing status on STM. This was done by administering different verbal STM tasks to elderly and young adult participants matched for hearing threshold, as well as normal-hearing control participants. We observed that elderly participants and hearing-matched young participants showed equal levels of performance in all verbal STM tasks, and performed overall more poorly than the normal-hearing young control participants. These results suggest that mild hearing impairment is a major explanatory factor of reduced STM performance, and importantly, is age-independent. The results are discussed within an interactive framework of STM and attentional processing (Majerus et al., 2009). [less ▲]

Detailed reference viewed: 78 (11 ULg)
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See detailPostérités et paradoxes de la physiognomonie. Introduction
Stienon, Valérie ULg; Wicky, Érika

Conference (2012, May)

Detailed reference viewed: 21 (1 ULg)
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See detailGC×GC-TOFMS for the comparison between different tobacco mainstream smoke
Brokl, Michal ULg; Bishop, L; Wright, C et al

Conference (2012, May)

Detailed reference viewed: 33 (1 ULg)
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See detailEtude du régime alimentaire et la stratégie trophique saisonnière de la loutre d'Europe (Lutra lutra) sur l'oued Beht (Maroc)
Fareh, Mostafa; Libois, Roland ULg; Gmira, Najib et al

Conference (2012, May)

Detailed reference viewed: 85 (11 ULg)
See detailLe recouvrement de créances au sein de l'Union européenne
Berthe, Aude ULg

Conference (2012, May)

Detailed reference viewed: 30 (2 ULg)
See detailThe added value of triple frequency GNSS for TEC reconstruction
Warnant, René ULg; Spits, Justine

Conference (2012, May)

Detailed reference viewed: 41 (3 ULg)
Peer Reviewed
See detailSpatial attention in working memory
Anseeuw, B.; Van Dijck, P.; Majerus, Steve ULg et al

Conference (2012, May)

Detailed reference viewed: 23 (0 ULg)
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See detailEvolution de la répartition de la loutre d'Europe (Lutra lutra) au Maroc
Libois, Roland ULg; Rosoux, René; Fareh, Mostafa

Conference (2012, May)

Detailed reference viewed: 73 (6 ULg)
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See detailTime controlled Cryogenic Zone Compression (timed CZC) GC-HRMS: a Novel Tool for Human Biomonitoring?
Krumwiede, D; Mehlmann; Focant, Jean-François ULg et al

Conference (2012, May)

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See detailChaque étudiant de master est-il capable d'auto-évaluer efficacement ses ressources, dans le cadre d'une approche par compétences ?
Sadzot, Agnès ULg; Poumay, Marianne ULg; Maillart, Christelle ULg

Conference (2012, May)

La communication expose les résultats issus de la comparaison entre performance réelle des étudiants et auto-évaluation de celle-ci. Elle tente de répondre aux questions de recherche suivantes : l ... [more ▼]

La communication expose les résultats issus de la comparaison entre performance réelle des étudiants et auto-évaluation de celle-ci. Elle tente de répondre aux questions de recherche suivantes : l'étudiant est-il capable de s'autoévaluer efficacement ? Sont-ce véritablement les meilleurs étudiants qui s'autoévaluent le mieux ? Les étudiants s'améliorent-ils en cours d'année ? Observe-t-on des différences en termes d'auto-évaluation selon le type de ressources évaluées (savoir versus savoir-faire) ? Elle discute ensuite des pistes de régulation du Master (orthophonie, ULg) issues de cette étude. [less ▲]

Detailed reference viewed: 131 (12 ULg)
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See detailInfluence of Cocoa Butter Diacylglycerols on the Isothermal Crystallization of Cocoa Butter
DeClercq, Nathalie; Danthine, Sabine ULg; Dewettinck, Koen

Conference (2012, May)

Detailed reference viewed: 35 (5 ULg)
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See detailLes contenus perceptuels et leurs parties
Dewalque, Arnaud ULg

Conference (2012, April 30)

My goal is to construe a plausible approach in favor of the existence of nonconceptual perceptual contents. I suggest that the most promising way of reaching this goal is to construe perceptual contents ... [more ▼]

My goal is to construe a plausible approach in favor of the existence of nonconceptual perceptual contents. I suggest that the most promising way of reaching this goal is to construe perceptual contents as multi-level contents or as contents involving nonconceptual components. In this talk I confront this view with the so-called perceptual conceptualism. [less ▲]

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See detailUne montagne d’or, c’est bien conçu, mais ce n’est pas donné
Leclercq, Bruno ULg

Conference (2012, April 30)

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See detailConcepts, inférences et expérience perceptive
Zincq, Aurélien ULg

Conference (2012, April 30)

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See detailNutritional vitamin D in CKD patients
CAVALIER, Etienne ULg

Conference (2012, April 28)

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See detailLa famine Ruzagayura (Rwanda, 1943-1944): causes, conséquences et réactions des autorités. Présentation des résultats de recherche
Singiza, Dantès ULg

Conference (2012, April 27)

La présente intervention revient sur le thème traité dans notre mémoire de Master en histoire, à savoir la famine Ruzagayura de 1943-1944, au Rwanda. Dans notre mémoire et dans la présente communication ... [more ▼]

La présente intervention revient sur le thème traité dans notre mémoire de Master en histoire, à savoir la famine Ruzagayura de 1943-1944, au Rwanda. Dans notre mémoire et dans la présente communication, nous tentons d’y répondre aux principales questions que pose cette famine : quelles en furent les causes, le domaine d’extension, la durée et les conséquences à court et moyen terme ? Quelles furent les réactions des différentes autorités, locales et mandataires, mais également des missionnaires face à cette situation d’urgence ? [less ▲]

Detailed reference viewed: 67 (4 ULg)
See detailUne nouvelles approche implantaire pour traiter les agénésies
LAMBERT, France ULg

Conference (2012, April 26)

Les agénésies dentaires sont fréquentes et représentent une prévalence de 5 %. Le remplacement de ces dents manquantes avec des implants est aujourd’hui appliqué en routine avec des protocoles ... [more ▼]

Les agénésies dentaires sont fréquentes et représentent une prévalence de 5 %. Le remplacement de ces dents manquantes avec des implants est aujourd’hui appliqué en routine avec des protocoles chirurgicaux de moins en moins invasifs. Cependant, avant le placement des implants, une alternative transitoire est nécessaire jusqu’à la fin de la croissance. Une solution récemment introduite est l’utilisation des implants provisoires de faible diamètre. L’objectif de cet exposé est de décrire le protocole de traitement des implants provisoires ainsi que la gestion définitive de ces cas avec des techniques chirurgicales peu invasives. [less ▲]

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See detailRégionalisation des débits d'étiage en Région wallonne
Gailliez, Sébastien ULg; Grandry, Maud ULg; Verstraete, Arnaud et al

Conference (2012, April 26)

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See detailStress oxydant, anti-oxydants et vieillissement
Pincemail, Joël ULg; Petermans, Jean ULg

Conference (2012, April 26)

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See detailLes élections en débat : introduction et présentation du colloque
Bouhon, Frédéric ULg; Reuchamps, Min ULg

Conference (2012, April 26)

Quelles sont les règles et les pratiques électorales en Belgique ? Nul n’ignore l’importance des élections dans toute société démocratique. Or, les élections reposent sur un système électoral qui n’est ... [more ▼]

Quelles sont les règles et les pratiques électorales en Belgique ? Nul n’ignore l’importance des élections dans toute société démocratique. Or, les élections reposent sur un système électoral qui n’est jamais neutre. En Belgique, des élections sont organisées à différents niveaux (élections communales, provinciales, régionales, communautaires, fédérales et européennes) et chaque type d’élection est encadré par un système électoral qui lui est propre. Il est donc nécessaire de mettre en perspective les nombreuses règles et pratiques électorales de notre pays. Entre les interventions de juristes et de politologues, ce colloque fera la part belle à la discussion avec le public. En outre, cet aprèsmidi de débats se fondera sur les travaux de plus de trente auteurs rassemblés dans l’ouvrage Les systèmes électoraux de la Belgique et publié sous la direction de Fr. Bouhon et M. Reuchamps (Éd. Bruylant). Le colloque s’articulera autour de trois grandes thématiques : - le concept de démocratie représentative ; - les acteurs des élections ; - le mode et les modalités de scrutin [less ▲]

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See detailDietary and urinary excretion of sodium and potassium associated with blood pressure control in treated hypertensive kidney transplant patients
Saint-Remy, Annie ULg; SOMJA, Mélanie ULg; BONVOISIN, Catherine ULg et al

Conference (2012, April 26)

Abstract Background. In kidney transplant (kt) recipients , hypertension is a major risk for cardiovascular complications but also for graft failure. Blood pressure (BP) control is therefore mandatory ... [more ▼]

Abstract Background. In kidney transplant (kt) recipients , hypertension is a major risk for cardiovascular complications but also for graft failure. Blood pressure (BP) control is therefore mandatory. Office BP (OBP) remains the most frequently used for clinical decisions, however home BP (HBP) have brought a significant improvement in the BP control. Sodium is a modifiable risk factor, many studies accounted for a decrease of BP with a sodium restricted diet. Increased potassium intake has been also recommended in hypertension management. Using an agreement between office and home BP, the present study investigated the relations between the BP control in kt recipients and their urinary excretion and dietary consumption of sodium and potassium. Methods. The BP control defined by OBP <140/90 mmHg and HBP <135/85 mmHg was measured in 70 kt recipients (mean age 56 ± 11.5 years; mean graft survival 7 ± 6.6 years) treated with antihypertensive medications. OBP and HBP were measured with a validated oscillometric device (Omron M6â). 24-hour urinary sodium (Na+) and potassium (K+) excretion as well as dietary intakes (food recall) were compared between controlled and uncontrolled (in office and at home) recipients. Non parametric Wilcoxon Mann-Whitney Test was used for between groups comparisons and Fisher’s exact test for frequencies comparisons. Results. Using an agreement between OBP and HBP, we identified controlled (21%) and uncontrolled recipients (49%). Major confounding effects susceptible to interfere with the BP regulation did not differ between groups, the amounts of sodium excretion were similar (154 ± 93 vs 162 ± 88 mmol/24h) but uncontrolled patients excreted less potassium (68 ± 14 vs 54 ± 20 mmol/24h; P=0.029) and had significantly lower intakes (3279 ± 753 vs 2208 ± 720 mg/24h; P=0.009), resulting in a higher Na+/K+ ratio. Systolic HBP was inversely and significantly correlated to urinary potassium when age, BMI and urinary sodium were controlled (r= -0.46; P=0.002). When age, BMI and urinary potassium were controlled, a positive relation was observed with urinary sodium (P=0.042). Conclusions. Half of the treated hypertensive kt recipients remained uncontrolled in office and at home. Restoring a well-balanced sodium/potassium ratio intakes could be a non pharmacological opportunity to improve blood pressure control. [less ▲]

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See detailReimbursement of radiotherapy in Belgium
JANSEN, Nicolas ULg

Conference (2012, April 26)

The author gives an overview of the proposals for a new reimbursement system for radiotherapy in Belgium, to be possibly introduced in 2013.

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See detailChangements dans l’art de construire: le choix des matériaux
Courard, Luc ULg

Conference (2012, April 25)

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See detailTraffic Situation Assessment and Intervention Strategy of a Collision Avoidance System based on Galileo Satellite Positioning
Christen, Fréderic ULg; Ewald, Christian; Eckstein, Lutz et al

Conference (2012, April 25)

Nowadays, collision avoidance systems (CAS) are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behavior of ... [more ▼]

Nowadays, collision avoidance systems (CAS) are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behavior of the driver. Up to date prototypic CAS are based on on-board environmental sensors, such as camera or radar systems, that scan the vehicle's surrounding environment in order to assess the situation's hazardousness. The functionality of the used sensors under varying environmental conditions and the limited sensor covering area require an enormous effort to ensure a reliable detection of obstacles, and thus limit the application of the systems. In order to expand the operating field of such systems, a Galileo-based CAS will be developed within the project ‘Galileo above’ (application centre for ground based traffic). This advanced driver assistance system (ADAS) detects surrounding vehicles that are on collision course and reacts autonomously, if the driver does not intervene to avoid the crash. For this purpose the system initiates an emergency stop and/or an emergency steering maneuver. For the development of the CAS the Galileo test centre automotiveGATE in Aldenhoven, Germany will be used. On this test area pseudolites will be installed which provide Galileo-like navigation signals. Thus, the development respectively tuning of Galileo-based vehicle systems will be enabled, so as to have them available on the market when the Galileo satellite system reaches its full operational capability (FOC). The focus of this paper is on the traffic situation assessment and intervention strategy of the CAS. This includes the perception and analysis of the driving situation, the detection of potential collision situation, the definition of an adequate system reaction and the planning of an evasion trajectory. Furthermore, an outlook on the model predictive control for longitudinal and/or lateral control (braking and/or steering maneuver) will be presented. [less ▲]

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See detailConscious, Mental, Intentional
Seron, Denis ULg

Conference (2012, April 25)

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See detailQuelques mesures de prévention de l’IRC et de traitement
Krzesinski, Jean-Marie ULg

Conference (2012, April 24)

Detailed reference viewed: 13 (0 ULg)
See detailConclusions - Le tournant politique de 1912
Lanneau, Catherine ULg

Conference (2012, April 24)

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See detailLe congrès wallon de juillet 1912
Lanneau, Catherine ULg

Conference (2012, April 24)

Detailed reference viewed: 28 (10 ULg)
Peer Reviewed
See detailInflammation as the key link between obesity, metabolic syndrome, and cancer.
Castronovo, Vincenzo ULg

Conference (2012, April 23)

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See detailBenefit of using flood risk analysis at the micro level for evaluating local protection measures
Dewals, Benjamin ULg; Detrembleur, Sylvain ULg; Archambeau, Pierre ULg et al

Conference (2012, April 23)

In numerous river basins, climate projections converge towards conditions leading to a significant increase in peak discharges both in terms of intensity and frequency. Therefore, managing flood risk will ... [more ▼]

In numerous river basins, climate projections converge towards conditions leading to a significant increase in peak discharges both in terms of intensity and frequency. Therefore, managing flood risk will remain an issue of primary importance. Besides, it is currently shifting from the search for full protection against flooding towards the management of the impacts of flooding. In this respect, the elaboration of effective flood management strategies should rely on an integrated risk-based approach, encompassing not only hydraulic criteria but also economic, social and environmental factors. In addition, the considered level of detail in the analysis should be relevant given the available data and the expected outcomes. While such risk analyses have so far been mostly undertaken at a macro- or meso-scale, the herein described analysis is performed at a micro-scale, meaning that the considered assets are the individual buildings, parcels or facilities. [less ▲]

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See detailSeasonal dynamics of organic carbon in the Tana River Basin, Kenya
Tamooh, F.; Meysman, F.; Marwick, T.R. et al

Conference (2012, April 22)

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See detailHistorical changes in carbon dioxide (CO2) and dimethyl sulphide (DMS) emissions in the eutrophied Southern North Sea
Gypens, N.; Borges, Alberto ULg; Lancelot, C.

Conference (2012, April 22)

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See detailVariability of shelf sea pH and surface water CO2 in response to North Atlantic Oscillation forcing
Salt, L.; Thomas, H.; Prowe, A.E.F. et al

Conference (2012, April 22)

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See detailArthur a un cancer: pour nous, frères et soeurs, pas facile à vivre
BADOT, Isabelle ULg; Missotten, Pierre ULg

Conference (2012, April 21)

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See detailReflections on the notion of 'consumer behaviour'
Hendrickx, Kim ULg

Conference (2012, April 20)

Today, consumer behavior has become a key concept in scientific publications and in international public health strategies. Both 'behavior' and the 'consumer' are in the title of the 3rd annual conference ... [more ▼]

Today, consumer behavior has become a key concept in scientific publications and in international public health strategies. Both 'behavior' and the 'consumer' are in the title of the 3rd annual conference of the Belgian Nutrition Society. This paper proposes a reflection on these concepts, and invites for further discussion. Firstly, the 'consumer' and his attributes will be briefly explored through an analysis of the Health Claims Regulation EC No 1924/2006. This document, intended to protect consumers from misleading information, uses a model of the consumer rooted in rational choice theory. Secondly, as medical sociologist David Armstrong (2009) has shown, the term 'behavior' has been brought in relation to health outcomes only relatively recently in medicine and public health. As such, it has come to be defined as a modifiable risk factor. I argue that European public health strategies have integrated this definition of behavior and the related idea of 'lifestyle' into rational choice theory. As such, 'behavior' and 'lifestyle' frame problems of health and disease in a specific way. The third section of this paper will confront this model of problem-framing with different understandings of 'behavior' coming from historical and contemporary sociological research. [less ▲]

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See detailIntroduction
Dumont, Jonathan ULg; Masson, Christophe ULg

Conference (2012, April 20)

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See detailIn nome della libertà: l’aspiration à la liberté dans les écrits de Francesco Guicciardini
Miesse, Hélène ULg

Conference (2012, April 20)

On peut distinguer dans la correspondance de Guichardin trois moments historiques au cours desquels la liberté est mise en danger par les armes. Premièrement, l’ambassade espagnole de 1512, lorsque le ... [more ▼]

On peut distinguer dans la correspondance de Guichardin trois moments historiques au cours desquels la liberté est mise en danger par les armes. Premièrement, l’ambassade espagnole de 1512, lorsque le jeune Guichardin est envoyé en mission auprès du roi d’Espagne pour sonder ses intentions. Ensuite, l’année 1525, moment de constitution de la ligue de Cognac, durant laquelle Guichardin consacre une partie de son temps à la rédaction de discours contradictoires sur le meilleur comportement politico-militaire à adopter pour « libérer l’Italie ». Enfin, l’année 1527 qui voit le terrible sac de Rome. Si la notion de liberté est généralement associée au bien-être, à la paix et à la santé, de Florence dans la première période, de la péninsule dans le deuxième moment, de Florence et de la Péninsule dans le troisième et justifie – paradoxalement – le passage aux armes pour la défendre, la conserver ou, pire, la restituer, selon les moments, le mot « liberté » ne recouvre toutefois pas le même sens. Lorsqu’il s’agit de protéger Florence, Guichardin entend défendre l’autogestion de la ville pourtant sous gouvernement médicéen ; la « liberté commune » ou « liberté d’Italie » renvoient à la seule absence d’étrangers dans la péninsule, alors qu’en 1527, lors du retour à un gouvernement populaire à Florence, la « libertà della città » n’est autre que l’appellation pour désigner ce même gouvernement populaire républicain. Tandis que, sur le terrain, les soldats s’affrontent pour « libérer » tel morceau de l’Italie – au sens renaissant d’ensemble de cités-état vivant en équilibre – voire la péninsule entière de tout occupant étranger, dans ses lettres Guichardin mène le même combat, tentant par la force de la plume de faire fléchir les uns et de convaincre les autres, n’hésitant pas à exploiter les multiples sens recouverts par le mot « liberté ». [less ▲]

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See detailPilot project « Walphy » : Walloon experimentation of river restoration
Peeters, Alexandre ULg; Verniers, Gisèle; de le Court, Bernard et al

Conference (2012, April 20)

According to the Water Framework Directive (WFD 2000/60), our rivers and water bodies are required to achieve the “good ecological status” by 2015. This requirement is related to the physico-chemical ... [more ▼]

According to the Water Framework Directive (WFD 2000/60), our rivers and water bodies are required to achieve the “good ecological status” by 2015. This requirement is related to the physico-chemical, biological water quality as well as the hydromorphological quality. In this context, a LIFE Environment project, co-founded by the European Union and the Service Publique de Wallonie, was launched in 2009 for a period of five years. It aims to realize the experimental and demonstrative river restoration works on three “at risk” water bodies, based on two axes: longitudinal continuity and transversal continuity. The first two selected water bodies (Bocq, eastern tributary of the Meuse) are suitable for the restoration works which concern the longitudinal continuity due to the presence of dams and other obstacles between 1 and 3 m high. These works consist in dam management (weir removal or fish ladders) taking into account hydromorphological (bedload transport) and biological (invertebrate or fish species free movement) impacts. The third water body (Eau Blanche, western tributary of the Meuse) presents straightened rivers with artificial banks which consequently lead to poor connections between the stream and its floodplain. This water body is therefore appropriated for the works based on the transversal continuity recovery. These works consist in enhancing straightened river channel and restoring meanders or banks. Until now, these works have been realized on more than 5 km. These works are being monitored on the basis of geomorphological and ecological analysis. The geomorphological monitoring is based on surveys conducted before and after the works. It concerns the bedload transport, the clogging of the gravel layer and the morphological changes of the river following the works. The ecological monitoring is based on two indicators: macroinvertebrates and fishes. Standardized and repeatable methods were developed to compare the situation before and after the works, especially through the analysis of microhabitats. In addition, we use another two complementary indexes of physical quality for this monitoring. Developed by the consulting office Teleos, these indexes have a fish orientation and have been implemented in many of our stations. [less ▲]

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See detailUne épée pour saint Pierre ? Les princes français et le Grand Schisme d’Occident
Masson, Christophe ULg

Conference (2012, April 20)

Afin d’assurer le succès des idées premières – prétentions territoriales ou guerre sainte – qui ne pouvait passer que par des entreprises militaires de grande ampleur, on les légitima par une autre série ... [more ▼]

Afin d’assurer le succès des idées premières – prétentions territoriales ou guerre sainte – qui ne pouvait passer que par des entreprises militaires de grande ampleur, on les légitima par une autre série d’idées, plus à même de mobiliser les énergies, et donc les armes. La défense du pape d’Avignon fut l’occasion pour Louis Ier, Louis II – dans une moindre mesure – et Louis Ier d’Orléans de financer leurs troupes à destination de Naples, pour les deux premiers, de Milan, pour le dernier. De la même manière, dans le cas de Boucicaut et de sa lutte contre les Infidèles, il fallait prendre la place de lieutenant du roi à Gênes pour, ensuite, profiter des ressources militaires, en l’occurrence maritimes, de la toujours riche république marchande. Aussi, pour répondre à la question que pose cet ouvrage, on peut affirmer qu’idées et armes furent interdépendantes lors de ces conflits ayant comme point de mire la foi, une foi qui s’effaça très souvent derrière les ambitions seigneuriales des protagonistes [less ▲]

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See detailExercer une pratique réflexive au quotidien à l'aide d'un log book
VIERSET, Viviane ULg

Conference (2012, April 20)

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See detailBilan prématuré d'une expérience collective d'enseignement
Cormann, Grégory ULg

Conference (2012, April 20)

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See detailCrise de la socialisation au sein d'une Société du travail sur Soi
Vrancken, Didier ULg

Conference (2012, April 19)

Ainsi que l’ont bien identifié les organisateurs de ce colloque, il est difficile d’évoquer aujourd’hui le thème de la socialisation en sociologie sans lui accoler le terme de crise. A telle enseigne que ... [more ▼]

Ainsi que l’ont bien identifié les organisateurs de ce colloque, il est difficile d’évoquer aujourd’hui le thème de la socialisation en sociologie sans lui accoler le terme de crise. A telle enseigne que l’on peut avancer qu’une réelle lecture « déclinologique » s’est répandue dans de nombreux pays européens et en particulier dans le domaine de la sociologie francophone. Ainsi cette crise de la socialisation va-t-elle souvent de pair avec la montée de l’individualisme, se déclinant notamment autour des thèmes du « retour de l’acteur », de la montée du nouvel « individualisme », de l’émergence du « sujet », de la « singularité », de la « subjectivation », etc. Tous ces thèmes laissant de plus en plus entrapercevoir un individu autonome mais surchargé par le poids des responsabilités. Un individu mis à l’épreuve (de la vie, des autres, de lui-même), un individu tenu de miser sur ses capacités mais en même temps saisi par le doute, celui d’être continuellement à la hauteur, d’« être capable ». De plus en plus d’études en sciences humaines et sociales se sont penchées sur la face sombre de cette évolution, celle de l’émergence de pathologies du lien social telles que les addictions, la dépression, le harcèlement moral, la souffrance sociale et ses multiples dimensions : souffrance au travail face à l’organisation ; précarité sociale ou encore appel constant à la subjectivité pour s’affirmer. Dans cette optique, la crise est alors perçue comme un affaiblissement du lien social en regard des sociétés qui nous ont précédés. Cette assertion sera pleinement discutée dans le cadre de cette conférence. [less ▲]

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See detailAdvances in biomaterials to repair cartilage
Maquet, Véronique; Chausson, Mickael; Gautier, Sandrine et al

Conference (2012, April 19)

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See detailLeonardo da Vinci nella collezione reale di pitture
Fagnart, Laure ULg

Conference (2012, April 19)

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See detailL’inflammation induite par les acides gras libres
L'Homme, Laurent ULg

Conference (2012, April 19)

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See detailWhat is new in anemia treatment in CKD since 2010?
Krzesinski, Jean-Marie ULg

Conference (2012, April 18)

•Partial correction (Hb in the range of 10-11.5 g/dL) of CKD-related anemia appears a safer strategy during the last 5y. So recommendation is to start ESA only when Hb <10 and to avoid too high ESA dose ... [more ▼]

•Partial correction (Hb in the range of 10-11.5 g/dL) of CKD-related anemia appears a safer strategy during the last 5y. So recommendation is to start ESA only when Hb <10 and to avoid too high ESA dose (CE DOSE study ongoing in HD)! •Identify resistant patients and try to improve it. •Importance of adequate iron management and of hepcidin role in the all-mortality risk in CKD. Newer strategies for correcting anemia are currently explored [less ▲]

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Peer Reviewed
See detailNew alginate-chitosan hydrogel to repair cartilage
Henrotin, Yves ULg

Conference (2012, April 18)

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See detail1-84 PTH and KDIGO Guidelines
CAVALIER, Etienne ULg

Conference (2012, April 18)

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See detailPrazeres do raio-x: estudo de um striptease radiográfico
Sturnack, Lionel ULg

Conference (2012, April 18)

O striptease que propomos analisar é na verdade o título de uma obra que pertence à produção da artista italiana Benedetta Bonichi. Trata-se de uma composição mista, a meio caminho entre os raios-x e a ... [more ▼]

O striptease que propomos analisar é na verdade o título de uma obra que pertence à produção da artista italiana Benedetta Bonichi. Trata-se de uma composição mista, a meio caminho entre os raios-x e a fotografia. “Striptease” chamou a nossa atenção por várias razões. Com certeza, por seu caráter surpreendente, sendo uma cena erótica e ao mesmo tempo uma radiografia. Mas também por sua estética particular em relação aos outros artistas que desenvolvem uma técnica similar. O propósito de nossos passos é levar em consideração o lugar da obra estudada no espaço de realizações em raio-x artístico, numa perspectiva semiótica. Pretendemos desta maneira chegar à descrição fina de “Striptease, por meio do estabelecimento de um conjunto de formantes plásticos estáveis funcionando como base sobre a qual se correlacionam e se diferenciam os raios-x artísticos estudados. Por isso, desenvolveremos o estudo segundo três etapas gerais. Com a primeira, tentaremos efetuar uma descrição de “Striptease” segundo os três eixos da leitura plástica padrão, tal como foram trabalhados por Jean-Marie Floch: cromático, eidético e topológico. Na segunda etapa, adotaremos o mesmo ponto de vista para a descrição plástica de cinco obras de quatro outros artistas. O interesse da segunda parte consiste em ver como se atualizam as unidades plásticas em cada realização particular, a fim de observar as suas possíveis convergências e divergências. Na última etapa, poderemos considerar a estética de cada obra à luz das atualizações plásticas e das integrações entre elas com outros patamares temáticos. Conseguiremos, finalmente, entender a pertinência e a particularidade de “Striptease” como obra com vocação reflexiva a respeito da prática do raio-x artístico. [less ▲]

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See detailDu diagnostic à l'intervention en entreprise: quelle réalité, quelles limites?
Hansez, Isabelle ULg

Conference (2012, April 17)

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See detailAnémies et insuffisance rénale : quoi de neuf?
Krzesinski, Jean-Marie ULg

Conference (2012, April 17)

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See detailLearning Latin: Grammars and Annotations in Latin Papyri
Scappaticcio, Maria Chiara ULg

Conference (2012, April 14)

Detailed reference viewed: 26 (1 ULg)
See detailmigrations congolaises en Belgique et géographies religieuses
Demart, Sarah ULg; Melice, Anne ULg; Meiers, Bénédicte ULg

Conference (2012, April 13)

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See detailparticipation politique, diaspora congolaise et transnationalismes
Demart, Sarah ULg; Bodeux, Leila

Conference (2012, April 13)

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See detailMonstrosity, Hunger, and Resistance
Delville, Michel ULg; Norris, Andrew

Conference (2012, April 12)

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See detailOn the accurate selection of asymptotic detection thresholds for Infit and Outfit indexes of person fit
Magis, David ULg; Raîche, Gilles; Béland, Sébastien

Conference (2012, April 11)

It exists a bunch of person fit indexes but Lz (Drasgow, Levine, & Williams, 1985), Infit mean square W (Wright & Masters, 1982) and Outfit mean square U (Wright & Stone, 1979) are certainly the most ... [more ▼]

It exists a bunch of person fit indexes but Lz (Drasgow, Levine, & Williams, 1985), Infit mean square W (Wright & Masters, 1982) and Outfit mean square U (Wright & Stone, 1979) are certainly the most popular. However, they have the undesirable property that their limiting distribution depends on the true ability level, which is generally unknown. In addition, the asymptotic distribution of U and W indexes was not clearly stated. Snijders (2001) proposed a generalization of the index Lz to incorporate estimated ability levels in its computation, and derived subsequent asymptotic normality of this modified Lz* index. The purpose of this talk is threefold. First, the generalization of Lz to Lz* is briefly sketched. Second, it is shown how this generalization can be successfully applied to both U and W indexes, yielding generalized U* and W* indexes respectively. Third, the accuracy of generalized indexes in detecting person (mis)fit is assessed through a simulation study. Three situations were investigated: (a) absence of misfit; (b) presence of cheating (yielding spuriously high scores); (c) presence of inattention (yielding spuriously low scores). Several conditions were varied, such as test length and aberrance rates when misfit was introduced. Response patterns were generated under the Rasch model and maximum likelihood estimation was performed to obtain the ability estimates. Several significance levels were selected. It is observed, that the generalized indexes Lz*, U* and W* better recover the significance level than their standard alternatives Lz, U and W respectively, while they are more powerful in identifying the two types of person misfit. In particular, the modified index W* has the best improvement in performance with respect to its original version W. It is concluded that Snijders' generalization of Lz index to Lz* is also accurate for U and W indexes under Rasch modelling. Possible extensions to other person fit indexes, such as ECI indexes (Tatsuoka, 1984), other ability estimators, and other IRT models are eventually briefly discussed. [less ▲]

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See detailTiO2 templated multilayer films used as high efficiency photoelectrode in liquid or solid DSSCs
Dewalque, Jennifer ULg; Cloots, Rudi ULg; Mathis, François ULg et al

Conference (2012, April 10)

Mesoporous anatase thin films are very promising materials to act as electrode in dye-sensitized solar cells. Randomly oriented nanocrystalline TiO2 particles are usually used to prepare photoelectrodes ... [more ▼]

Mesoporous anatase thin films are very promising materials to act as electrode in dye-sensitized solar cells. Randomly oriented nanocrystalline TiO2 particles are usually used to prepare photoelectrodes with a thickness of 10-15 µm. Templated-assisted dip-coating techniques are used to obtain thin films with ordered porosity. However, monolayer films prepared by dip-coating from a solution suffer from a low quantity of active material with a limited surface area, leading to poor photovoltaic performances. Therefore a multilayer deposition process is needed to increase the film thickness along with surface area. Multilayer dip-coating procedures have already been reported but are usually characterized by a lack of linearity in the evolution of parameters (roughness, surface area, PV performances) as the number of layer increases. In this study, we investigate a dip-coating-based multilayer deposition technique delaying these limitations. First, the influence of the template on the film organization and porosity is studied in terms of long-range order, percentage of porosity, pore size, surface area and pores connectivity. Different techniques such as transmission electron microscopy (TEM), atmospheric poroellipsometry (AEP) and UV-visible absorption spectroscopy (UV-vis.) have been used to describe the microstructural features of the films. The film exhibiting the highest dye loading was selected and its thickness gradually increased up to 4 µm. Finally, the photovoltaic performances of the thick films (1 to 4 µm) have been evaluated in combination with the N719 dye and a liquid electrolyte and show excellent efficiency (6.1%) when compared to values reported in the literature. Such mesostructured films were compared in terms of photovoltaic performance with TiO2 nanoparticles films, generally used in DSSC. Films were further evaluated by Rutherford Backscattering Spectrometry (RBS) as high performance photoelectrode in solid-state DSSCs, in combination with Z907 dye and Spiro-OMeTAD as solid electrolyte. [less ▲]

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See detailL'interprétation réaliste des jugements existentiels de Conrad-Martius
Seron, Denis ULg

Conference (2012, April 06)

Hedwig Conrad-Martius a développé, dans les années 1930, une conception en grande partie originale du jugement existentiel, dans la perspective d’une ontologie d’allure aristotélicienne. L’idée à la base ... [more ▼]

Hedwig Conrad-Martius a développé, dans les années 1930, une conception en grande partie originale du jugement existentiel, dans la perspective d’une ontologie d’allure aristotélicienne. L’idée à la base de cette conception est que l’être existentiel et l’être copule sont unis par une relation d’analogie, et que celle-ci doit servir de principe directeur pour la clarification des « sens de l’être ». Cette idée a conduit Conrad-Martius à élaborer une théorie assez sophistiquée de l’« être immanent à l‘état de choses », ainsi qu’une conception réaliste suivant laquelle le prédicat existentiel exprime une propriété de premier degré, qui doit être mise au jour par l’intuition des essences. On s’attachera non seulement à détailler son analyse du jugement existentiel, en remontant à ses sources chez Reinach, Pfänder et, indirectement, chez Meinong, mais aussi à en clarifier quelques implications métaphysiques. [less ▲]

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See detailRaymond De Becker et l'identité belge
Lanneau, Catherine ULg

Conference (2012, April 05)

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