References of "Scientific congresses and symposiums"
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See detailThe Surface Ocean CO2 Atlas (SOCAT) - Coastal Regional group
Borges, Alberto ULg; Chen, A. T. C.; The SOCAT Regional group

Poster (2009)

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See detailBounds for Multistage Stochastic Programs using Supervised Learning Strategies
Defourny, Boris ULg; Ernst, Damien ULg; Wehenkel, Louis ULg

in Watanabe, Osamu; Zeugmann, Thomas (Eds.) Stochastic Algorithms: Foundations and Applications (2009)

We propose a generic method for obtaining quickly good upper bounds on the minimal value of a multistage stochastic program. The method is based on the simulation of a feasible decision policy ... [more ▼]

We propose a generic method for obtaining quickly good upper bounds on the minimal value of a multistage stochastic program. The method is based on the simulation of a feasible decision policy, synthesized by a strategy relying on any scenario tree approximation from stochastic programming and on supervised learning techniques from machine learning. [less ▲]

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See detailEssential role of sirtuins in the pathogenesis of allergic airway inflammation
Legutko, Agnieszka ULg; Marichal, Thomas ULg; Fievez, Laurence ULg et al

in Short book of the Annual Congress of the European Respiratory Society (ERS), Vienne (2009)

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See detailNormal MRI-anatomy of the foal foot from birth to seven months of age.
Van Thielen, B.; Busoni, Valeria ULg; Van den Broeck, R. et al

in AVEF Proceedings (2009)

Detailed reference viewed: 53 (0 ULg)
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See detailAmélioration de la croissance pondérale chez les grands prématurés par l’optimalisation de la nutrition à la naissance.
SENTERRE, Thibault ULg

in 15ème Journées Francophones de Recherche en Néonatologie (2009)

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See detailLa Compagnie de Jésus et Notre-Dame de Foy. Diffusion, appropriation, évangélisation
Delfosse, Annick ULg

in Dekoninck, Ralph; Delfosse, Annick; Pacco, Christian (Eds.) Foy Notre-Dame : Art, Politique et Religion. Actes du colloque de Dinant (16 mai 2009) (2009)

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See detailTransformation identitaires en cours de formation initiale des enseignants: axes d'une grille de réflexivité sur le métier
Dejean, Karine ULg

Conference (2009)

Cette communication porte sur l’analyse des transformations identitaires exprimées dans les discours des enseignants en formation initiale. Cette analyse nous a permis de dégager des axes de ... [more ▼]

Cette communication porte sur l’analyse des transformations identitaires exprimées dans les discours des enseignants en formation initiale. Cette analyse nous a permis de dégager des axes de transformation qui pourront servir d’outils dans le cadre de séances de réflexivité collective et individuelle avec les futurs enseignants en leur offrant des éléments d’intelligibilité pour les aider à se situer par rapport à leur propre parcours de développement et par rapport aux différentes attentes institutionnelles à leur égard. [less ▲]

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See detailBiodiversité végétale et pressions anthropiques dans la forêt marécageuse de Lokoli (Bénin).
Mama, A; Adomou, A; Dan, C et al

Poster (2009)

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See detailRisks assessment of water pollution by pesticides at local scale (Pesteaux Project): study of polluting pressure
Noël, Stéphanie; Bah, Boubacar Billo ULg

in Communications in Agricultural and Applied Biological Sciences (2009), 74(1), 165-170

Pollution of water resources (surface waters and ground waters) by pesticide uses is one of the key point of the European policy with the imptementation of the Water Frame Work Directive (2000/60/EC) and ... [more ▼]

Pollution of water resources (surface waters and ground waters) by pesticide uses is one of the key point of the European policy with the imptementation of the Water Frame Work Directive (2000/60/EC) and the thematic Strategy on the Sustainable use of pesticides. According to this Legislation, the Member States must initiale measures to limit environmental and toxicologieal effects caused by pesticide uses. The Agricultural Research Centre of Wallonia (CRA-W) emphasized the need of a toot for spatial risk analysis and develops it within the framework of PESTEAUX project. The originality of the approach proposed by the CRA-W is to generate maps to identify the risk of pollution at locale scale (agricultural parcel). The risk will be assessed according to the study of different factors, grouped under 3 data's tayers: polluting pressure, vulnerability of the physical environment (soil) and meteorological data. This approach is directly based on the risk's definition which takes into account the polluting pressure, linked te the human activities, and the vulnerabitity of the soil, defined by factors of physical environment which characterize the water flow in the parcel. Moreover, meteorological data influence the intensity and likelihoad flow of water, and indirectly pesticide by leaching or runoff. The PESTEAUX's approach to study the pollution is based on the model "source-vector-target". The source is the polluting pressure, in other words, the pesticides which could reach the targets. The main vector is the water which vehicles the pesticide on and trough the soil until the target which are the surface waters or ground waters. ln this paper we introduce the factors contributing to the polluting pressure. These factors are linking to the human activities and more precisely, to the pesticide uses. The factors considered have an influence on pesticide's transport by water (in its solid state or in dissolved state by leaching, run-off, or erosion) but also on a set of process controlling pesticide behavior in the environment such as degradation, sorption, .... [less ▲]

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See detailHolocene environmental changes in lake sediments from Northern Chilean Patagonia
Nuttin; Fagel, Nathalie ULg; Brogniet et al

Poster (2009)

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See detailRisk factors for major joints heterotopic ossification after thermal injury
REMY, Christophe ULg; COLMAN, David ULg; LEDOUX, Didier ULg et al

in Burns : Journal of the International Society for Burn Injuries (2009)

Detailed reference viewed: 23 (1 ULg)
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See detailReal-time spatial analysis of root water uptake in rhizotrons
Lobet, Guillaume ULg; Javaux, M.; Pages, L. et al

Poster (2009)

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See detailEffect of phospholipids on surface properties of rapeseed oleosins at two pH
Vaca Medina, Guadalupe; Mouloungui, Zéphirin; Roiz, Julie ULg et al

Poster (2009)

Detailed reference viewed: 111 (6 ULg)
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See detailLe modèle de Rasch, Modèle statistique permettant d’évaluer les compétences des élèves dans le domaine de la lecture
Demonty, Isabelle ULg; Schillings, Patricia ULg

in Actes du 20e colloque international de l’Admée-Europe. 16e colloque international de l'ADMEE-Europe. Entre la régulation des apprentissages et le pilotage des systèmes: évaluations en tension (2009)

Detailed reference viewed: 61 (6 ULg)
See detailFootball, nationalisme et gouvernance
Tuñón, Jorge; Brey, Elisa ULg

Conference (2009)

Detailed reference viewed: 29 (2 ULg)
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See detailMorphodynamic incidences of the trepanning of the endokarst by solution pipes. Examples of chalk caves in Western Europe (France and Belgium)
Rodet, Joël; Willems, Luc ULg; Brown, Joël et al

in Contributed Papers Proceedings 15th International Congress of Speleology (2009)

Detailed reference viewed: 22 (1 ULg)
See detailMeta-Analysis in Transcriptional Network Inference
Meyer, Patrick ULg; Haibe-Kains, Benjamin; Bontempi, Gianluca

in Recomb Satellite 09 (2009)

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See detaile-Demos, We'll Show You What We've Got !"
Lecomte, Béatrice ULg

Conference (2009)

Detailed reference viewed: 47 (17 ULg)
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See detailStatic and Dynamic experimental investigations of a micro-electromechanical cantilever in air and vacuum
Gutschmidt, Stefanie; Rochus, Véronique ULg; Golinval, Jean-Claude ULg

(2009)

The dynamic response of electro-mechanically actuated micro structures is governed by nonlinear effects which directly influence their performance. To date, most work in the field of micro/nano systems is ... [more ▼]

The dynamic response of electro-mechanically actuated micro structures is governed by nonlinear effects which directly influence their performance. To date, most work in the field of micro/nano systems is done experimentally and documented theoretical research consists of nonlinear lumped-mass models as well as continuum mechanics approaches. Existing and codified computational tools for micro-electromechanical systems (MEMS) more and more penetrate the market of designers and fabrication of such devices. The present work is the experimental part of a bench-mark study of a selected microbeam structure investigated with aforementioned analytical and computational techniques and compared to experiments performed with a Polytec MSA400 analyzer. The emphasis of this benchmark study is put on the nonlinear dynamic behavior with respect to qualitative and quantitative explanations of the electro-mechanical actuation and damping mechanisms. [less ▲]

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See detailMassive stars and emission-line stars with GAIA
Blomme, Ronny; Frémat, Y.; Lobel, Alex et al

Poster (2009)

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See detailEffects of iron depletion on articular biomarkers and joint symptoms in patients with genetic hemochromatosis: a prospective, longitudinal study.
Richette, P; Eymard, C; DEBERG, Michelle ULg et al

in Osteoarthritis and Cartilage (2009), 17(Suppl 1), 75

Detailed reference viewed: 3 (0 ULg)
See detailConsommations et délinquances : deux expériences complémentaires à l'adolescence
Gavray, Claire ULg

in Guedah, M. (Ed.) Délinquances et changements sociaux, des modes de vie et des pratiques d’intervention. Dialogue nord-sud (2009)

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See detailConséquences négatives de la présence d'antibiotiques dans les eaux usées lors de leur épuration par boues activées
Louvet, Jean-Noël ULg; Attik, Ghania; Dumas, Dominique et al

Conference (2009)

Detailed reference viewed: 16 (1 ULg)
See detailThe strange case of the Of?p stars
Nazé, Yaël ULg; Walborn, N. R.; Martins, F. et al

Poster (2009)

Detailed reference viewed: 9 (2 ULg)
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See detailUtilisation des enzymes en alimentation porcine et avicole
Beckers, Yves ULg; Piron, Fabien ULg

in CRA-W (Ed.) Impact de l'alimentation sur la santé animale : nouveaux développements (2009)

Detailed reference viewed: 106 (16 ULg)
See detailL'impact des transmissions familiales et scolaires sur la délinquance juvénile
Gavray, Claire ULg

in Burnay, N. (Ed.) Figures contemporaines dela transmission (2009)

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See detailBiomaterial Surface Characteristics Modulate the Outcome of Bone Regeneration around Endosseous Oral Implants: In Silico Modeling
Amor, Nadya; Geris, Liesbet ULg; Vander Sloten, Jos et al

in Miller, Karol; Nielsen, Poul M.F. (Eds.) MICCAI 2009 Workshop Proceedings (2009)

Experimental investigations have demonstrated the importance of platelets and their activation for bone regeneration around oral implants. This study aimed to numerically demonstrate the key role of ... [more ▼]

Experimental investigations have demonstrated the importance of platelets and their activation for bone regeneration around oral implants. This study aimed to numerically demonstrate the key role of activated platelets which is controlled by implant surface characteristics. The cellular activities involved in the process of peri-implant endosseous healing can be represented by migration, proliferation, differentiation, removal, extracellular matrix synthesis and degradation, and growth factor production/release and decay. These activities are described by a system of highly coupled non-linear partial differential equations of taxis–diffusion–reaction type. Moreover, cell–biomaterial interactions were treated by including surface-specific model parameters. A well-designed in vivo model that looked at healing around oral implants with different surface properties was selected from literature to validate the results. Numerical simulations agreed well with the experimentally observed healing response and demonstrated that platelet-related model parameters, which were dependent on implant surface characteristics, modulate the pattern of healing. [less ▲]

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See detailCHARACTERIZATION AND OPTIMIZATION OF PEPTIDE ENCAPSULATION IN PEGYLATED LIPOSOMES
Ducat, Emilie ULg; Brion, Michael; Evrard, Brigitte ULg et al

Poster (2009)

Purpose: The purpose of this work is to study the peptide encapsulation into PEGylated liposomes. Two formulations (SPC:CHOL:mPEG-750-DSPE (47:47:6) or SPC:CHOL:mPEG-2000-DSPE (47:47:6)) were investigated ... [more ▼]

Purpose: The purpose of this work is to study the peptide encapsulation into PEGylated liposomes. Two formulations (SPC:CHOL:mPEG-750-DSPE (47:47:6) or SPC:CHOL:mPEG-2000-DSPE (47:47:6)) were investigated. Methods: Blank SUV liposomes were prepared by the lipid film hydration and the encapsulation was achieved by applying freeze-thawing cycles. Because many factors may influence peptide entrapment (number of freeze-thawing cycles (NC), lipid concentration (LC), peptide concentration (PC), mixing time (MT) and liposome composition (COMP)), a design of experiment (DOE) was performed. Results: The screening permitted to identify two factors having a positive and significant influence on the encapsulation efficiencies (NC and LC) while the liposome composition had a relatively weak effect. For the second part of the DOE, the positive factors were optimized for liposomes containing mPEG2000. The obtained results revealed a theoretical optimum at 64.75±3.55% when 11 cycles were applied and for the following LC: 36.1mM SPC, 36.1mM CHOL and 4mM mPEG-2000-DSPE. Experimental results showed an encapsulation efficiency of 62.68±2.93%. Conclusion: The DOE led to significant improvement of encapsulation for liposomes containing mPEG2000. Thereafter, an optimization design for liposomes containing mPEG750 will be started. Acknowledgements: This work was supported by the Ministry of the Walloon Region. [less ▲]

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See detailHandling range ambiguities in registration-based range-dependence compensation for conformal array STAP
Ries, Philippe; Verly, Jacques ULg; Lapierre, Fabian D.

Conference (2009)

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See detailCarbon cycling in the mixolimnion of Lake Kivu (East Africa)
Borges, Alberto ULg; Descy, J.-P.; Delille, Bruno ULg et al

Conference (2009)

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See detailHVDC control strategies to improve transient stability in interconnected power systems
Hazra, Jagabondhu; Phulpin, Yannick; Ernst, Damien ULg

in Proceedings of the 2009 IEEE Bucharest PowerTech (2009)

This paper presents three HVDC modulation strategies to improve transient stability in an interconnected power system. AC variables such as rotor speeds, voltage phasors, and tieline power flows are used ... [more ▼]

This paper presents three HVDC modulation strategies to improve transient stability in an interconnected power system. AC variables such as rotor speeds, voltage phasors, and tieline power flows are used as input to the controller that modifies the power flow settings through the HVDC-links. The proposed techniques are tested on the IEEE 24-Bus reliability test system and critical clearing times obtained for several contingencies are analyzed. The paper shows that HVDC modulation can lead to substantial improvement in transient stability. [less ▲]

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See detailPhosphate mineral associations in the Cema pegmatite (San Luis Province, Argentina) : Paragenesis, chemistry and significance in the pegmatite evolution
Roda-Robles, Encarnacion ULg; Galliski, Miguel; Roquet, M. B. et al

in Estudios Geologicos (2009), 19(2), 300-304

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See detailPast and future events specificity in bipolar disorders
Boulanger, Marie ULg; Lejeune, Aurélie; Blairy, Sylvie ULg

Poster (2009)

Previous research has shown that the individuals suffering from emotional disorders have specificity of autobiographical memory (AM) deficits. This difficulty to remember specific personal past events ... [more ▼]

Previous research has shown that the individuals suffering from emotional disorders have specificity of autobiographical memory (AM) deficits. This difficulty to remember specific personal past events seems related to difficulty to project specific oneself into the future (D’Argembeau, Raffard & Van der Linden, 2008). The aim of this study was investigated these impairments in population with bipolar disorders (BD). Participants (19 patients with bipolar disorders and 17 healthy subjects) completed validated French versions (Neumann & Philippot, 2006) of the AMT Williams & Broadbent (1986). Participants were instructed to generate specific past and future memories in response to cues words. For past events, the analyses revealed a significant group by memory interaction (F(2,68) = 4.0 ; p=.023) which indicates that the patients with BD recollected less specific events and more overgeneral events than controls. In the same way, for the future events task, a significant group by memory interaction emerged (F(2,68) = 7.85 ; p<.001) which indicates that the patients with BD were less specific and yielded more overgeneral memories than the control group. Thereby the results are consistent with previous studies that have examined autobiographical memory specificity in patients with BD (Scott et al., 2000; Mansell & Lam, 2004). However, to ours knowledges, the present study is the first to investigate specificity of AM and the abilities to generate specific events for future in patients with bipolar disorders. [less ▲]

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See detailMilli-arcsecond Astrophysics with VSI, the VLTI Spectro-imager in the ELT Era
Malbet, F.; Buscher, D.; Weigelt, G. et al

in Moorwood, Alan (Ed.) Science with the VLT in the ELT Era (2009)

Nowadays, compact sources relatively warm like surfaces of nearby stars, circumstellar environments of stars from early stages to the most evolved ones and surroundings of active galactic nuclei can be ... [more ▼]

Nowadays, compact sources relatively warm like surfaces of nearby stars, circumstellar environments of stars from early stages to the most evolved ones and surroundings of active galactic nuclei can be investigated at milli-arcsecond scales only with the VLT in its interferometric mode. We propose a spectro-imager, named VSI (VLTI spectro-imager), which is capable to probe these sources both over spatial and spectral scales in the near-infrared domain. This instrument will provide information complementary to what is obtained at the same time with ALMA at different wavelengths and the extreme large telescopes. [less ▲]

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See detailEcological modeling and paedomorphosis: a study case in Montenegrin newts
Denoël, Mathieu ULg; Ficetola, Gentile; Cirovic, Rusa et al

Poster (2009)

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See detailAnalysis of Titan airglow UV spectra from Cassini Ultraviolet Imaging Spectrograph (UVIS)
Gustin, Jacques ULg; Ajello, J.M.; Stevens, M.H. et al

Poster (2009)

We present the analysis of FUV (1150-1750 Å) limb dayglow spectra of Titan’s atmosphere obtained on 13 December 2004 at 5 Å resolution by the Ultraviolet Imaging Spectrograph (UVIS) onboard Cassini. The ... [more ▼]

We present the analysis of FUV (1150-1750 Å) limb dayglow spectra of Titan’s atmosphere obtained on 13 December 2004 at 5 Å resolution by the Ultraviolet Imaging Spectrograph (UVIS) onboard Cassini. The fit to the data show that Titan’s airglow consists of four principal emissions: 1) the N2 Lyman-Birge-Hopfield (LBH) band system, which peaks in intensity at 1150 +/- 50 km, 2) N I multiplets peaking at 1050km +/- 50 km, 3) sunlight reflected by N2 between 0 and 300 km and 4) H Ly alpha which grows in intensity with increasing altitude. Comparisons with limb spectra obtained by the Voyager 1 Ultraviolet spectrometer (V1/UVS) show that the vertically integrated brightness are larger for V1/UVS than for UVIS by a factor of 3, consistent with the XUV solar flux ratio at Titan at the time of these observations. The N2 LBH and N I profiles obtained from the regression to the Titan data are compared to models obtained by the Atmospheric Ultraviolet Radiance Integrated Code (AURIC), adapted from Earth’s atmosphere to Titan’s. [less ▲]

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See detailAn analysis of the random error affecting CO2 fluxes measured by eddy covariance.
Laffineur, Quentin ULg; Heinesch, Bernard ULg; Aubinet, Marc ULg

Poster (2009)

This study focuses on random errors associated with eddy covariance flux measurements. This error is heteroscedastic, increases linearly with the flux magnitude and the error on CO2 flux decreases with ... [more ▼]

This study focuses on random errors associated with eddy covariance flux measurements. This error is heteroscedastic, increases linearly with the flux magnitude and the error on CO2 flux decreases with increasing wind speed. As random errors accumulate in quadrature, they are less critical than systematic errors as far as flux sums are concerned. On the other hand it may affect significantly half-hour data and pose problem for modelling or analysis of flux response to environmental parameters. It is therefore useful to characterize the site and the specific conditions under which the random error is the most important. The random error on CO2 flux was computed at two sites, one cropland and one forested site, by using the daily differencing approach (DDA, Hollinger and Richardson 2005). Relationships with flux and wind speed were compared between different periods (day vs. night, growing season vs. rest of the year) and for different flux computation methods. First, an increase of random error with decreasing wind speed was observed at low speed. This effect was not observed during the rest period at the cropland site and disappears when a high-pass filtering is applied to the data. It may be explained by two processes: on one hand, the below canopy air layer is less efficiently mixed which can create large flux variations when CO2 sources and sinks are separated. On the other hand, mesoscale motions may exceed small-scale turbulence at low wind speed. At similar wind speeds, the random error was lower at the cropland than at the forested site, which can be due to either process: indeed, at the cropland site, the distance between CO2 sources and sinks is smaller which reduce the low mixing effect but the site is also more flat and homogeneous which reduce the impact of mesoscale movements. The possibility of mesoscale movement impact is supported by the fact that the effect disappears when applying a high pass filtering. The random error was also found sensitive to the computational method: in particular it is larger when the flux is computed using the block average rather than the running mean, it increases when storage is taken into account and decreases when data are filtered by applying stationarity screening or u* filtering. [less ▲]

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See detailA modeling system handling the wide range of time scales involved in sediment transport processes
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proc. 6th International SedNet conference (2009)

Detailed reference viewed: 12 (2 ULg)
See detailUncertainty of carbon dioxide fluxes introduced by different high-pass filtering methods
Ibrom, Andreas; Geißler, Simon; Laffineur, Quentin ULg et al

Conference (2009)

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See detailA comparison of the physical activity promotion strategies adopted by selected secondary schools in three European regions
Van Hoye, Aurélie ULg; Motter, Pascale ULg; Cloes, Marc ULg

in Rossi, T.; Hay, P.; McCuaig, L. (Eds.) et al Proceedings of the 2008 AIESEP World Congress «Sport pedagogy research, policy and practice: International perspectives in physical education and sports coaching. North meets South, East meets West» (2009)

The concept of the ‘active school’ emerged a decade ago as the role with increasing recognition of the role of schools in the promotion of physical activity. The purpose of this paper is to present the ... [more ▼]

The concept of the ‘active school’ emerged a decade ago as the role with increasing recognition of the role of schools in the promotion of physical activity. The purpose of this paper is to present the findings of a study which, drawing on Cale’s ‘Active School’ model, aimed to compare the nature and extent of physical activity promotion in secondary schools in three European regions. In so doing, it aimed to establish whether there were cultural differences in the strategies and approaches adopted by schools. [less ▲]

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See detailRetrieving episodic memories when recognizing familiar faces and names.
Barsics, Catherine ULg; Brédart, Serge ULg

in Proceedings of the 31st Annual Conference of the Cognitive Science Society. Austin, TX: Cognitive Science Society. (2009)

This study was aimed at investigating whether the recognition of familiar faces is more likely to be associated with an experience of Remembering than the recognition of familiar names. Using the Remember ... [more ▼]

This study was aimed at investigating whether the recognition of familiar faces is more likely to be associated with an experience of Remembering than the recognition of familiar names. Using the Remember/Know paradigm the proportions of episodic memories recalled following the recognition of famous faces and names (Conditions) were assessed. Presented faces and names were previously judged by an independent group of participants as eliciting an equivalent level of familiarity. Nevertheless significant differences between the two conditions appeared in hit and false alarm rates. However, present results showed no significant difference in the recollection of personal memories (Remember responses conditionalized on the hits), following familiar faces compared with familiar names recognition. This finding contrasts with recent accounts assuming that faces are more prone to yield episodic memories than other cues to person identity. These results and their implications for current Interactive Activation and Competition person recognition models are discussed. [less ▲]

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See detailMeasuring home-range quality in the frugivorous gibbon (Hylobates lar)
Hambuckers, Alain ULg; Huynen, Marie-Claude ULg; Savini, Tommaso

Conference (2009)

Detailed reference viewed: 66 (12 ULg)
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See detailRespiratory problems in a high productive dairy herd
Lekeux, Pierre ULg

in In Proceedings: Dutch Bovine Conference (2009)

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See detailInformation delivery to patients with acute low back pain: a longitudinal observational randomized survey
Marty, M; Moyse, D; Bazin, T et al

in Annals of the Rheumatic Diseases (2009), 68(Suppl 3), 700

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See detailLa négociation immobilière après l'arrêt de la cour d'appel de Mons du 15 juin 2009
Kohl, Benoît ULg

in Leleu, Yves-Henri (Ed.) Chroniques Notariales (2009)

Detailed reference viewed: 79 (14 ULg)
See detailInnate lymphocytes in human papillomavirus (HPV)-associated cervical cancers
Renoux, V; Bisig, B; Thiry, Marc ULg et al

Poster (2009)

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See detailRegional mapping of pedogeochemical background in Southern Belgium: Combining grid-survey measurements with existing maps of the physical environment.
Colinet, Gilles ULg; Bock, Laurent ULg

Conference (2009)

Among natural factors driving the soil content in metallic trace elements (MTE), the geochemical background is often deemed as a sound base for the detection of contaminations. Numerous studies have shown ... [more ▼]

Among natural factors driving the soil content in metallic trace elements (MTE), the geochemical background is often deemed as a sound base for the detection of contaminations. Numerous studies have shown the difficulties to take into account the multi-dimensionnality of the spatial variability of most soil properties. As far as a detailed soil map is available for Belgium, the relevance of its information was investigated at various spatial scales in the Walloon Region (Southern Belgium), from the plot to the entire region, to evaluate the feasibility of a multi-scale mapping of geochemical background. The soil properties of 410 plots from the regional forest soil monitoring and the relationships with informations related to the physical environment (lithology, soil types...) were investigated through multivariate statistical analysis. Some processes of integration of point measurements and qualitative information were also explored. At the regional scale, some long-range spatial structures could be identified. These result mainly from the geological structure of the Walloon region, where the lithological zonation is rather clearly marked. The soil map (texture and nature of stone charge) appears relevant at that scale too but does need a generalization process and fails however to differenciate the intra-type soil spatial variability. [less ▲]

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See detailOnline assessment of the quality of care in elderly (Belgium)
Tancredi, A; Renard, Florence ULg; Degey, S et al

Conference (2009)

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See detailBehaviour of an engineered clay barrier for A nuclear waste isolation system
François, Bertrand ULg; Laloui, Lyesse

in Computational Methods for Coupled Problems in Science and Engineering, Coupled Problems’09 (2009)

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See detailAgroecology and the emergence of "Publics"
Stassart, Pierre M ULg

Conference (2009)

Detailed reference viewed: 23 (1 ULg)
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See detailIntentional patina of metal archaeological artefacts; a non-destructive investigation of Egyptian and Roman museum treasures
Mathis, François ULg; Aucouturier, Marc; Robcis, Dominique et al

Conference (2009)

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See detailLight transmission imaging as a useful tool to decrypt root water uptake
Lobet, Guillaume ULg; Javaux, M.; Pagès, L. et al

Poster (2009)

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See detailLes Fondements d’une politique industrielle et énergétique pour l’Europe
Merenne-Schoumaker, Bernadette ULg

in Bulletin de liaison des membres de la Société de Géographie de Paris (2009), (Hors série), 112-126

Malgré la mise en place de la Communauté européenne du charbon et de l'acier (CECA) en 1952 et un traité Euratom en 1958, l’Union européenne (UE) n’a toujours pas de réelle politique industrielle ni de ... [more ▼]

Malgré la mise en place de la Communauté européenne du charbon et de l'acier (CECA) en 1952 et un traité Euratom en 1958, l’Union européenne (UE) n’a toujours pas de réelle politique industrielle ni de réelle politique énergétique. Certes, différentes mesures ont été initiées à partir de 1990 et à la suite de la Stratégie de Lisbonne (2000) qui vise à faire de l’Union européenne « l’économie de la connaissance la plus compétitive et la plus dynamique du monde » à l’horizon 2010. Une politique industrielle se met ainsi progressivement en œuvre. Parallèlement, il est de plus en plus question d’une politique énergétique. L’objectif de ce travail est de comprendre le pourquoi de ces nouvelles stratégies en recherchant leurs fondements. [less ▲]

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See detailEn face de l’archaïque et du conscient. Entretien avec Christophe Feutrier
Dubouclez, Olivier ULg; Feutrier, Christophe

in Detue, Frédérik; Dubouclez, Olivier (Eds.) Valère Novarina, le langage en scène (2009)

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See detailHigh Incidence of AIP mutations in sporadic pituitary adenomas in young patients with macroadenomas
Tichomirova, M. A.; Daly, Adrian ULg; Barlier, A. et al

in The Endocrine Society's 91st Annual Meeting : 10-13 juin 2009, Washington (2009)

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See detailLe contrat d'assurance : sa genèse et les questions de preuve
Paris, Catherine ULg

in Fagnart, Jean-Luc (Ed.) Chronique de droit à l'usage des Juges de paix et de police 2009 (2009)

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See detailInfluence des dégradations des forêts sur la diversité et la distribution d’abondance des espèces arborées dans le département de Tanda (Est de la Côte d’Ivoire).
Bamba, I; Mama, A; Danho, N et al

in Dahdouh-Guebas, F (Ed.) Proceedings of the Symposium on African Botany in Brussels (2009)

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See detailWhat is the likely future of real-time transient stability ?
Ernst, Damien ULg; Wehenkel, Louis ULg; Pavella, Mania ULg

in Proceedings of the 2009 IEEE/PES Power Systems Conference & Exposition (PSCE 2009) (2009)

Despite very intensive research efforts in the field of transient stability during the last five decades, the large majority of the derived techniques have hardly moved from the research laboratories to ... [more ▼]

Despite very intensive research efforts in the field of transient stability during the last five decades, the large majority of the derived techniques have hardly moved from the research laboratories to the industrial world and, as a matter of fact, the very large majority of today's control centers do not make use of any real-time transient stability software. On the other hand, along all these years the techniques developed for real-time transient stability have mainly focused on the definition of stability margins and speeding-up techniques rather than on preventive or emergency control strategies. In the light of the above observations, this paper attempts to explain the reasons for lack of industrial interest in real-time transient stability, and also to examine an even more fundamental question, namely: is transient stability, as has been stated many decades ago, still the relevant issue in the context of the new power systems morphology towards more dispersed generation, higher penetration of power electronics, larger and more complex structures, and, in addition, of economic and environmental constraints? Or, maybe, there is a need for techniques different from those developed so far? [less ▲]

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See detailPour une histoire du goût aux Temps modernes
Von Hoffmann, Viktoria ULg

in Boire et Manger: Pour une histoire de l'alimentation (2009)

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See detailPrediction of acid mine generating potential: Validation using mineralogy
Bouzahzah, Hassan; Benzaazoua, Mostafa; Plante, Benoît et al

in Proceedings 24th International Applied Geochemistry Symposium (2009)

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See detailEvolution du marché mondial des céréales de 2006/07 à 2008/09
Burny, Philippe ULg

in Centre wallon de Recherches agronomiques; Faculté universitaire des Sciences agronomiques de Gembloux (Eds.) Livre blanc Céréales-Gembloux février 2009 (2009)

Cet article décrit l’évolution récente de la production et des échanges mondiaux des principales céréales et abordent la question des prix.

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See detailReconstruction of missing data in satellite data sets using DINEOF with constraints to reduce spurious high-frequency variations in the temporal EOFs
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Sirjacobs, Damien ULg et al

Conference (2009)

DINEOF (Data Interpolating Empirical Orthogonal Functions) is a method to reconstruct missing data in geophysical data sets, such as gaps originated by the presence of clouds in infrared satellite sensors ... [more ▼]

DINEOF (Data Interpolating Empirical Orthogonal Functions) is a method to reconstruct missing data in geophysical data sets, such as gaps originated by the presence of clouds in infrared satellite sensors. Based on Empirical Orthogonal Functions (EOFs), DINEOF uses an iterative procedure to calculate the missing values. DINEOF has been compared to Optimal Interpolation, showing that more accurate results are achieved, with up to 30 times less computational time (tests made with sea surface temperature of the Adriatic Sea, and validated with in situ data). Another advantage of this technology is that there is no need for a priori knowledge of the reconstructed data set statistics (such as covariance or correlation length). The technique can be applied to a broad range of data (physical, biological, chemical), and to a variety of platforms (satellite data, in situ data...). Given the nature of the EOFs, it is not necessary that data sets are regularly distributed in time. Irregularly distributed data sets, however, may lead to discontinuities in the temporal EOFs calculated from them, and these discontinuities can affect in turn the quality of the DINEOF reconstruction. In satellite data, some images can present a large amount of cloud cover, and only a few pixels with valid data. EOF projection to such images can also lead to discontinuities in the temporal modes, as there might be an over-fitting to the scarce information present in those images. After briefly describe DINEOF and its applications, we present a study aiming to reduce these discontinuities by including a time constraint to the covariance matrix used in the EOF decomposition. The approach is tested with sea surface temperature data of the Black Sea, and the results are compared to independent data. [less ▲]

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See detailModélisation architecturale pour l'évaluation de la performance énergétique
Juchmes, Roland ULg; Dawans, Arnaud ULg; Delfosse, Vincent ULg et al

in Bignon, Jean-Claude; Halin, Gilles; Kubicki, Sylvain (Eds.) Conception architecturale numérique et approches environnementales : Actes du 3ème séminaire de conception architecturale numérique (2009)

L'article présente un outil logiciel de modélisation original, développé dans le cadre de la nouvelle directive européenne sur la performance énergétique des bâtiments (PEB). Basé sur une approche ... [more ▼]

L'article présente un outil logiciel de modélisation original, développé dans le cadre de la nouvelle directive européenne sur la performance énergétique des bâtiments (PEB). Basé sur une approche "centrée utilisateur", l'outil poursuit l'objectif de faciliter la description géométrique et technologique d'un bâtiment à différents stades de son processus de conception. Le papier présente les principes et options qui sous-tendent cette application, illustre les fonctionnalités actuellement implémentées et commente une première évaluation menée avec l'appui d'un groupe d'utilisateurs. [less ▲]

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See detailHigh-throughput methodology applied to screening of carbohydrate-based surfactant interfacial properties for colloidal system formulations
Razafindralambo, Hary ULg; Blecker, Christophe ULg; Deroanne et al

Poster (2009)

Carbohydrate-based surfactants (CBS) constitute an attractive class of amphiphilic molecules owing to their structural diversity generating a wide range of properties which could be developed in food and ... [more ▼]

Carbohydrate-based surfactants (CBS) constitute an attractive class of amphiphilic molecules owing to their structural diversity generating a wide range of properties which could be developed in food and non-food applications. Based on many functional groups of the carbohydrate part, it is possible to design multiple amphiphilic structures of CBS varying in the hydrophilic head groups (mono-, oligo-, or polysaccharides), hydrophobic tail (mono-, di-, tricatenar) but also in the linker/spacer between them. The main structures of CBS include mono- and bicatenar glycolipids, bolaforms, and gemini. Moreover, CBS compounds can be produced from the most abundant renewable materials allowing large product concept possibilities. Among general properties of surfactants, interfacial properties molecules occupy a fundamental key role for colloidal system formulations since they control most of technological aptitudes required for forming and stabilizing food, cosmetic, agrochemical, detergent, and pharmaceutical products. High-throughput methodology applied to screening of CBS interfacial properties appears crucial for achieving optimum formulations of colloidal systems like foams and emulsions for which small amounts of single or mix surface-active agents are often needed and numerous physical and chemical parameters are involved. This general approach may be applied to any amphiphilic molecules produced from other renewable resources of surface-active compounds like micro-organisms and by direct extraction from vegetable materials. One of the key factors for the development of this methodology is the use of automated instrument systems in laboratory scale which are still lacking in this field compared to those existing in the analytical chemistry and biochemistry areas. [less ▲]

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See detailAppui à la création d’un diplôme d’études approfondies en biologie végétale et environnement à l’Université de Lubumbashi et remédiation multiscalaire des sols contaminés.
Ngongo Luhembwe, M; Bogaert, Jan ULg; Colinet, Gilles ULg et al

in Dahdouh-Guebas, F (Ed.) Proceedings of the Symposium on African Botany in Brussels (2009)

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See detailRegulation of microRNAs expression by the antiangiogenic factor 16K hPRL
Halkein, Julie ULg; Malvaux, Ludovic; Nguyen, Ngoc-Quynh-Nhu ULg et al

Poster (2009)

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See detailLos retos de la inmigración a nivel local
Domínguez, Marta; Brey, Elisa ULg

Conference (2009)

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See detailWerkt een muzikale opleiding de perceptie van prosodische prominentie in een vreemde taal in de hand?
Degrave, Pauline; Hiligsmann, Philippe; Rasier, Laurent ULg

Conference (2009)

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See detailTSH-secreting pituitary adenoma in a male patient with a novel missense AIP mutation
Fajardo Montanana, C.; Daly, Adrian ULg; Tichomirova, M. A. et al

in The Endocrine Society's 91st Annual Meeting : 10-13 juin 2009, Washington (2009)

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See detailSelecting multiple epistatic models using MB-MDR
Cattaert, Tom ULg; De Wit, V.; Mahachie John, Jestinah ULg et al

in Conference Abstract Book (2009)

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See detailMallarmé face au vers libre : une position critique
Durand, Pascal ULg

in Boschian-Campaner (Ed.) Le vers libre dans tous ses états. Histoire et poétique d’une forme (1886-1914) (2009)

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See detailModeratrice
Parra Santamaria, Lusmiriam Andrea ULg

Conference (2009)

This Forum has been organised in order to discuss different approaches for the bilateral Colombia-Venezuela's conflict that had taken place during the gouvernements of Alvaro Uribe and Hugo Chavez ... [more ▼]

This Forum has been organised in order to discuss different approaches for the bilateral Colombia-Venezuela's conflict that had taken place during the gouvernements of Alvaro Uribe and Hugo Chavez. Several secteors of the society participated in it. We had academics (from different universities in the city), the local journal's president, the Chief of research of the Central Bank (local office in Cartagena). [less ▲]

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