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See detailExploring the synergy between promoting active participation in work and in society and social, health and long-term care strategies
Grammenos, S.; Atta, C.; Pestieau, Pierre ULg et al

Report (2007)

The purpose of this study is to provide information that can help the Commission and EU Member States engage in policy discussion on how social, health and long-term care systems can help enhance ... [more ▼]

The purpose of this study is to provide information that can help the Commission and EU Member States engage in policy discussion on how social, health and long-term care systems can help enhance participation in work and family, social and community activities and how, in turn, participation in paid employment, family, social and community activities can contribute to healthy and autonomous living at present and in the future. Part I presents a review of the literature on the synergy between health and activity/work. Health affects work and social participation but on the other side work and activity affect health. We focus on people aged 55 and over as this interrelation (double causality) seems to be significant for important life events (retirement decision, social participation, etc.) of this age group. Part II presents a quantitative analysis and tries to identify national specificities. It presents the lessons which we can draw from European surveys. It presents a quantitative analysis based on the LFS, the EU-SILC, the ECHP UDB and SHARE surveys. The fourth step summarises national policies and gives a comparative analysis, while the fifth step presents the best practices. Finally, the last part summarises the main conclusions and the policy implications. [less ▲]

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See detailDéveloppement d'un indicateur portant sur l'évolution du travail au noir en Belgique
Pacolet, Jozef; Pestieau, Pierre ULg; Baeyens, Katleen et al

Report (2007)

La mission du CREPP était de présenter une synthèse des travaux portant sur la mesure du travail au noir en général et en Belgique en particulier. Elle était aussi de suggérer des pistes concrètes ... [more ▼]

La mission du CREPP était de présenter une synthèse des travaux portant sur la mesure du travail au noir en général et en Belgique en particulier. Elle était aussi de suggérer des pistes concrètes permettant de mieux appréhender la réalité du travail au noir et les moyens de lutter contre lui. Dans le texte ci-dessous on trouvera la synthèse des études existantes qui conclut que la plupart des estimations macroéconomiques sont discutables, voire fan¬taisistes. Notre conviction est que l’approche macroéconomique est stérile. L’approche correcte est sectorielle et elle devrait s’appuyer sur deux types de données: les données administratives et les données d’enquêtes portant sur tous les acteurs: offreurs, demandeurs et autorités de contrôle. [less ▲]

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See detailBIANZO: biodiversity of three representative groups of the Antarctic Zoobenthos: comparative structure, distribution and fucntion
De Broyer, Claude; Vanreusel, Ann; Vanhove, Sandra et al

Report (2007)

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See detailInvestigation on the equivalent viscous damping in direct displacement-based design
Degée, Hervé ULg; Bento, R.; Massena, B.

Report (2007)

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See detailMise en oeuvre de la phase "interprétation" du projet de Cartographie Numérique des Sols de Wallonie (P.C.N.S.W.)
Lejeune, Philippe ULg; Rondeux, Jacques ULg; Bock, Laurent ULg et al

Report (2007)

Ce rapport final présente la synthèse de l'ensemble des activités menées dans le cadre de la convention d'étude pour la mise en oeuvre de la phase 'interprétation" du Projet de Cartographie Numérique des ... [more ▼]

Ce rapport final présente la synthèse de l'ensemble des activités menées dans le cadre de la convention d'étude pour la mise en oeuvre de la phase 'interprétation" du Projet de Cartographie Numérique des Sols de Wallonie. L'objectif général de cette convention s'est déroulé du 1er mai2004 au 28 février 2007. L'objectif général est la "Mise en oeuvre de la phase "interprétation" du projet de cartographie numérique des sols de Wallonie". Les objectifs particuliers sont : 1. L'élaboration de nouveaux livrets explicatifs adaptés à la Carte numérique des sols de Wallonie sur base d'une stratification de l'espace rural en "Unités de stratification de l'espace rural (USER)". 2. Développement de modules d'exploitation d'applications permettant l'utilisation de la Carte numérique des sols de Wallonie par le plus grand nombre d'acteurs possible. 3. Développement et installation de services liés aux données pédologiques issues du PCNSW sur le serveur de la DGA. [less ▲]

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See detailProjet Référentiel Plancton de la Baie de Calvi : I. Les variations spatiales et temporelles des communautés phytoplanctoniques au large de la côte occidentale corse, en relation avec la dynamique des masses d’eau et le Front Liguro- Provençal
Goffart, Anne ULg; Hecq, Jean-Henri ULg

Report (2007)

Le rapport synthétise les variations spatiales et temporelles des communautés phytoplanctoniques au large de la côte occidentale corse, en relation avec la dynamique des masses d’eau et le Front Liguro ... [more ▼]

Le rapport synthétise les variations spatiales et temporelles des communautés phytoplanctoniques au large de la côte occidentale corse, en relation avec la dynamique des masses d’eau et le Front Liguro-Provençal. [less ▲]

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See detailSuivi 2006 du phytoplancton des eaux côtières corses : évaluation de la stratégie d’échantillonnage proposée dans le cadre des contrôles de surveillance de la DCE et première caractérisation des masses d’eau
Goffart, Anne ULg

Report (2007)

Les résultats obtenus dans le cadre du suivi DCE 2006 du phytoplancton des eaux côtières corses ont permis: − de tester et de valider une stratégie d’échantillonnage originale adaptée aux réseaux de ... [more ▼]

Les résultats obtenus dans le cadre du suivi DCE 2006 du phytoplancton des eaux côtières corses ont permis: − de tester et de valider une stratégie d’échantillonnage originale adaptée aux réseaux de surveillance et aux spécificités régionales; − de caractériser globalement les communautés phytoplanctoniques de 6 masses d’eau côtières ne présentant pas de risque NABE à l’horizon 2015 (Calvi, Cargèse, Pianottoli, Est Cap Corse, Sud Bastia et Sant’Amanza); - de démontrer le très bon état des masses d’eaux échantillonnées pour l’indicateur Phytoplancton; - d’émettre des recommandations visant à optimiser l’effort d’échantillonnage et la validité des résultats. La stratégie d’échantillonnage testée et validée propose de réaliser deux suivis « haute fréquence » au niveau des sites de référence de Calvi et de la station « Sud Bastia ». L’échantillonnage doit être réalisé en subsurface toute l’année, une fois par semaine de janvier à juin et une fois par quinzaine de juillet à décembre. Les autres masses d’eau sont échantillonnées une fois par mois, de janvier à décembre. Les résultats 2006 mettent en évidence les caractéristiques communes des communautés phytoplanctoniques des masses d’eau de Calvi, Cargèse et Pianottoli et des masses d’eau Est Cap Corse, Sud Bastia et Sant’Amanza. Ceci suggère que les suivis réalisés dans le cadre des contrôles de surveillance pourraient se limiter aux observations « haute fréquence » réalisées à Calvi et à la station « Sud Bastia ». [less ▲]

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See detailModelling the evolution of climate and sea level over the third millennium (MILMO)
Fichefet, Thierry; Driesschaert, Emmanuelle; Goosse, Hugues et al

Report (2007)

A new three-dimensional Earth system model of intermediate complexity was developed. This model, named LOVECLIM, consists of five major components representing the atmosphere (ECBilt), the ocean and sea ... [more ▼]

A new three-dimensional Earth system model of intermediate complexity was developed. This model, named LOVECLIM, consists of five major components representing the atmosphere (ECBilt), the ocean and sea ice (CLIO), the terrestrial biosphere (VECODE), the oceanic carbon cycle (LOCH) and the Greenland and Antarctic ice sheets (AGISM). It also includes a global glacier-melt algorithm which is run in off-line mode. It is worth mentioning that there are very few models of this type worldwide. ECBilt is a quasi-geostrophic atmospheric model with 3 levels and a T21 horizontal resolution. It includes simple parameterisations of the diabatic heating processes and an explicit representation of the hydrological cycle. Cloud cover is prescribed according to present-day climatology. CLIO is a primitive-equation, free-surface ocean general circulation model coupled to a thermodynamic–dynamic sea-ice model. Its horizontal resolution is 3° × 3°, and there are 20 levels in the ocean. VECODE is a reduced-form model of vegetation dynamics and of the terrestrial carbon cycle. It simulates the dynamics of two main terrestrial plant functional types (trees and grassland) at the same resolution as that of ECBilt. LOCH is a comprehensive model of the oceanic carbon cycle that takes into account both the solubility and biological pumps. The version utilised here has the same resolution as the one of CLIO, which greatly facilitates the coupling between both models. Finally, AGISM is composed of a three-dimensional thermomechanical model of the ice sheet flow, a visco-elastic bedrock model and a model of the mass balance at the ice–atmosphere and ice–ocean interfaces. The Antarctic ice-sheet module also contains a model of the ice-shelf dynamics to enable interactions with the ocean and migration of the grounding line. For both ice sheets, calculations are made on a 10 km × 10 km resolution grid with 31 sigma levels. The performance of LOVECLIM was assessed by conducting ensemble simulations over the last few centuries. Starting from different initial conditions, the model was integrated from year 1500 AD up to year 2000 AD with solar irradiance, volcanic activity, tropospheric ozone amount, greenhouse-gas (including CO2) concentrations and sulphate-aerosol load evolving with time according to reconstructions. Over the last 140 years, the model simulates a global surface warming ranging from 0.33°C to 0.43°C, with a mean value of 0.38°C. This value is about 0.15°C lower than the observed one. A detailed analysis of the results has revealed the model behaves reasonably well at mid- and high latitudes. By contrast, at low latitudes, the agreement between the model results and observational estimates is less good, especially in the Southern Hemisphere. In those regions, LOVECLIM significantly underestimates the warming and the climate variability observed during the last few decades. The coarse resolution of the model and the simplified representation of the atmospheric dynamical and physical processes seem to be the two major candidates responsible for this deficiency. Regarding the Greenland ice sheet, we found a slightly increasing ice volume during the period 1700–2000 AD. This trend is largely explained as a residual response to the late Holocene forcing, in particular to the Little Ice Age cooling after year 1500 AD. The effect is not particularly large, however, amounting to only 1.2 cm of global sea-level rise over the entire period. The growing trend stabilizes during the 20th century, with almost no net effect on ice volume. Only during the last decades of the 20th century, the ice volume begins to decrease in response to the imposed warming. We also found the Antarctic ice sheet to be retreating slowly at a rate equivalent to a global sea-level rise of about 1.7 cm during the 20th century. This evolution is mostly due to a long-term background trend of +2.6 cm, mitigated by about 0.9 cm from slightly rising accumulation rates over the same period. The ongoing dominance of past climatic changes on the contemporary ice-sheet evolution is a fine illustration of the inertia encountered when studying the response of large continental ice sheets. In this case, it mainly results from an ongoing grounding-line retreat in West Antarctica following rising sea levels since the Last Glacial Maximum. As far as mountain glaciers and small ice caps are concerned, their area and volume are found to reach a maximum in the late 19th century corresponding to the Little Ice Age, but this maximum and the ensuing 20th century glacier retreat are not very pronounced. Over the last hundred years, the model simulates an ice loss equivalent to only 0.89 cm of sea-level rise. This value is at the lower end compared to other assessments. One reason is the low total ice volume assumed by the global glacier-melt algorithm (about 20 cm of total sea-level rise, a factor 2.5 less than previous estimates). A second reason is the prescribed global ice mass balance for the 1961–1990 reference period, which is also at the lower end of other simulations. For the 20th century, LOVECLIM explains about 7.6 cm of sea-level rise. The bulk of that value, about 4.7 cm, comes from thermal expansion of the World Ocean. The Antarctic and Greenland ice sheets combined lead to a sea-level rise of 2 cm, and glaciers and ice caps are responsible for about 0.9 cm of sea-level rise. These numbers are similar to those that have been derived for the IPCC Third Assessment Report (TAR) for the same components except for the lower glacier contribution as found here. Over the industrial era, the net uptake of carbon by the ocean simulated by LOVECLIM is within the range of current estimates, although at the lower end of this range. It should be noted that a detailed evaluation of the performance of the terrestrial carbon-cycle module was impossible to perform given the very wide range of available data. Experiments with interactive atmospheric CO2 concentration were also carried out with LOVECLIM forced by CO2 emissions from fossil fuel burning and land-use change. Interestingly enough, the atmospheric CO2 level computed by the model in year 2000 AD compares relatively well with the observed one. A series of climate-change projections were then conducted over the 21st century. In these experiments, LOVECLIM was driven by changes in greenhouse-gas (including CO2), tropospheric ozone and sulphate-aerosol concentrations following the IPCC SRES scenarios B1, A1B and A2. In year 2100 AD, the model predicts a globally averaged, annual mean surface warming of 1°C, 1.4°C and 1.8°C for scenarios B1, A1B and A2, respectively, and an associated increase in precipitation of 3.6%, 5.1% and 6.6%, respectively. In agreement with studies performed with climate general circulation models (CGCMs), a weakening of the Atlantic meridional overturning circulation (MOC) is noticed in all runs. At the end of the 21st century, the decrease in the maximum value of the annual mean meridional overturning streamfunction below the surface layer in the Atlantic basin, which is an index of the MOC intensity, reaches 19% for scenario B1, 21% for scenario A1B and 27% for scenario A2. In our model, as in the majority of CGCMs, this decrease is caused more by changes in surface heat flux than by changes in surface freshwater flux. Under the forcing scenario A1B, LOVECLIM simulates a global sea-level rise of 31.3 cm in year 2100 AD. As for the 20th century, the most important contributor is the oceanic thermal expansion (+18.8 cm), followed by the contributions from the Greenland ice sheet (+5.2 cm), glaciers and ice caps (+3.8 cm) and the Antarctic ice sheet (+3.5 cm). The total rise is equivalent to a quadrupling of the sea-level rise simulated for the 20th century. Our sea-level value is somewhat lower than the central estimate for the same four components of about 40 cm in the IPCC TAR predictions. This can be explained by the low climate sensitivity of LOVECLIM, and hence the lower global temperature rise, which mostly affects the largest contribution of thermal expansion of the World Ocean. Another difference with the IPCC TAR predictions is the positive contribution from Antarctica of several cm of sea-level rise. That is in contrast to most other simulations showing a growing ice sheet and a negative contribution to global sea level of typically between -5 and -20 cm. The IPCC TAR also found a generally larger contribution from mountain glaciers and small ice caps. Our glacier-volume loss is smaller because of the lower initial glacier volume assumed by the glacier-melt algorithm. The total projected sea-level rise for the 21st century is only slightly affected by the scenario itself. For the range of SRES scenarios used by LOVECLIM, the total sea-level rise is found to vary between +22 and +35 cm by year 2100 AD. The much larger range of between +9 and +88 cm obtained for the IPCC TAR arose mainly from the inclusion of model uncertainties, and not from the greenhouse-gas-forcing scenarios employed. As expected, climate change impacts the air–sea CO2 exchange in the model by lowering the solubility and hence the net uptake of carbon by the ocean. The effect is however rather modest at the century time-scale given the moderate increase in sea-surface temperature simulated by LOVECLIM. In addition, we do not observe any significant change in the oceanic biology at the global scale during the 21st century. The picture is a bit different regarding the terrestrial biosphere. Both the climate and fertilization effects strongly increase the carbon uptake in VECODE. A number of experiments with interactive atmospheric CO2 concentration were also carried out over the 21st century. Contrary to other modelling studies, LOVECLIM predicts lower atmospheric CO2 levels at the end of the 21st century when the effect of climate change on the carbon cycle is accounted for in the model. The warming enhances the net uptake of carbon by the terrestrial biosphere which more than offsets the reduction in oceanic uptake resulting from the solubility decrease. Finally, we have thoroughly analysed the model response to a range of stabilized anthropogenic forcings over the next millennia. For the variety of forcing scenarios considered, LOVECLIM simulates a globally averaged, annual mean surface warming ranging between 0.55°C and 3.75°C and an associated decrease in Arctic and Antarctic sea-ice extent. However, no simulation predicts an entirely ice-free Arctic Ocean during summertime at the millennium time-scale. In the most pessimistic case, a small ice pack of about 0.5×106 km2 persists. Our results also suggest that it is very likely that the volume of the Greenland ice sheet will largely decrease in the future. After 1000 years of model integration, the ice volume is reduced by more than 20% when the radiative forcing is higher than 6.5 W m-2. Moreover, for a radiative forcing greater than 7.5 W m-2, the ice sheet melts away in less than 3000 years. Note that the ice-sheet disintegration might be even more rapid if processes responsible for the widespread glacier acceleration currently observed in Greenland were taken into consideration in the model. We also found that the freshwater flux from the melting Greenland ice sheet into the neighbouring oceans, which peaks in the most extreme scenario tested at 0.11 Sv (1 Sv = 10^6 m3 s-1) and remains above 0.1 Sv during three centuries, is not large enough to trigger a shutdown of the Atlantic MOC in our model, in contrast to some other models. Those models are however more responsive to freshwater perturbations than ours. Besides, we showed that climate feedbacks play a crucial role in the ice-sheet evolution and that the Greenland deglaciation considerably enhances the greenhouse-gas-induced warming over Greenland and the central Arctic. This stresses the importance of incorporating the two-way interactions between the Greenland ice sheet and climate in climate- and sea-level-change projections at the millennial time-scale. For the Antarctic ice sheet, the response is much less drastic than for the Greenland ice sheet. For instance, after 3000 years of 4×CO2 forcing (∼7.7 W m-2), the Antarctic grounded ice volume and area are reduced in our model by only 8% and 4%, respectively. For a sustained radiative forcing of 8.5 W m-2 (the highest forcing scenario considered in our study), LOVECLIM predicts a global sea-level rise of 7.15 m by year 3000 AD. Most of it is due to melting of the Greenland ice sheet (+4.25 m), followed by melting of the Antarctic ice sheet (+1.42 m), thermal expansion (+1.29 m) and the contribution from mountain glaciers and small ice caps (+0.19 m). Our results show that it will be very difficult to limit the eventual sea-level rise to less than 1 m after 1000 years, unless the atmospheric CO2 concentration can be stabilized to less than twice its pre-industrial level. Such a goal can only be reached by emission reductions far larger than any policy currently pursued. Concerning the carbon cycle, the experiments carried out with LOVECLIM highlight the opposite responses of the terrestrial and oceanic carbon reservoirs to climate change. We also found that, when anthropogenic CO2 emissions cease, the terrestrial biosphere becomes a weak carbon source, while the ocean continues to be a sink. It should be mentioned that no dramatic change in the global marine productivity is observed in our simulations. This arises from the fact that the modifications of the oceanic properties that affect this productivity (stratification, meridional overturning, …) are rather moderate. The effects of climate change are however not negligible. In particular, the decrease in sea-ice extent predicted by the model results in a longer growing season and a larger nutrient uptake (especially silica) in polar regions. As a result, by the end of the 23rd century, silica concentrations in the upper 100 m of the Southern Ocean drop by as much of 30% for the most extreme forcing scenarios. [less ▲]

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See detailProjet Référentiel Plancton de la Baie de Calvi : II. Diversité de l’écosystème planctonique de la Baie de Calvi
Hecq, Jean-Henri ULg; Goffart, Anne ULg

Report (2007)

Ce rapport présente la diversité de l’écosystème planctonique de la Baie de Calvi. Le premier chapitre rappelle les principales définitions utilisées en écologie planctonique. La suite du texte présente ... [more ▼]

Ce rapport présente la diversité de l’écosystème planctonique de la Baie de Calvi. Le premier chapitre rappelle les principales définitions utilisées en écologie planctonique. La suite du texte présente les grands groupes planctoniques rencontrés en Baie de Calvi, leurs principales caractéristiques morphologiques et les grandes lignes de leur écologie. Le texte est illustré de photographies originales de microphytoplancton et de zooplancton de la Baie réalisées à STARESO par les auteurs. [less ▲]

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See detailL'intégration par les jeunes des stéréotypes sexistes véhiculés par les médias
Dizier, Céline; Nibona, Marjorie; Willems, Isabelle et al

Report (2007)

Le rapport analyse la manière dont les stéréotypes sexistes sont diffusés dans les médias, notamment par les situations et par l'image. Il présente également une enquête sur les jeunes pour percevoir la ... [more ▼]

Le rapport analyse la manière dont les stéréotypes sexistes sont diffusés dans les médias, notamment par les situations et par l'image. Il présente également une enquête sur les jeunes pour percevoir la façon dont ces stéréotypes sont intégrés ou mis en distance en fonction des pratiques de consommation médiatique mais aussi du contexte. [less ▲]

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See detailExpertise ZAE II. Identification des localisations optimales des activités économiques
Lambotte, Jean-Marc ULg; Bastin, A.; Lepers, E. et al

Report (2007)

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See detailNotes de recherche n°2. Evaluation des besoins en matière de zones d’activités économiques. Annexes
Lambotte, Jean-Marc ULg; Bastin, A.; Guillaume, N. et al

Report (2007)

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See detailNotes de recherche n°2. Evaluation des besoins en matière de zones d'activités économique. Résumé
Lambotte, Jean-Marc ULg; Bastin, A.; Guillaume, N. et al

Report (2007)

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See detailNotes de recherche n°2. Evaluation des besoins en matière de zones d’activités économiques. Rapport
Lambotte, Jean-Marc ULg; Bastin, A.; Guillaume, N. et al

Report (2007)

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See detailIdentification des localisations optimales des activités économiques
Bastin, A.; Guillaume, N.; Hiligsman, S. et al

Report (2007)

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See detailHow can organic farming contribute to sustainable production and consumption patterns
Stassart, Pierre M ULg; Mormont, Marc ULg; Jamar, Daniel et al

Report (2007)

A sustainable agricultural production chain (“from stable to table”) is not produced ex nihilo, especially when its future hinges on demand from a supermarket distribution circuit. Many of the standards ... [more ▼]

A sustainable agricultural production chain (“from stable to table”) is not produced ex nihilo, especially when its future hinges on demand from a supermarket distribution circuit. Many of the standards of conventional production chains effectively serve as references for intermediaries and consumers alike. The tensions between sustainability standards and market standards are thus the crucial areas in which negotiations about the chain’s future take place. These inextricably intertwined technical, social, and economic tensions are the subject of this research. These tensions create a situation of uncertainty, that is to say, of choices between pathways. They are both a springboard for action and the cause of inaction, depending on how they are interpreted. This exploration is what justified an intervention-research approach that combines restating questions and changing relations to explore the possible pathways to take [less ▲]

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See detailUpdate on field experiments and description of the groundwater flow and transport model for the Flémalle cokery site
Batlle-Aguilar, Jordi; Brouyère, Serge ULg

Report (2006)

This deliverable summarises all the hydrogeological experiments performed in the scope of the AquaTerra project by HGULg in the Flémalle test site. These experiments consisted in various hydraulic tests ... [more ▼]

This deliverable summarises all the hydrogeological experiments performed in the scope of the AquaTerra project by HGULg in the Flémalle test site. These experiments consisted in various hydraulic tests and tracer tests performed to quantify hydrodynamic and hydrodispersive properties of the alluvial gravel aquifer and to evaluate groundwater fluxes in the aquifer and at the aquifer-river interface. First steps in groundwater modelling are also presented. [less ▲]

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See detailChronic low back pain. Good clinical practice (GCP)
Nielens, H.; Van Zundert, J.; Mairiaux, Philippe ULg et al

Report (2006)

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See detailRapport 2 projet FIRST DEI IMOBIOSE
Goffin, Dorothée ULg

Report (2006)

Le projet FIRST DEI IMOBIOSE est financé par la région wallonne et en partenariat avec la société Meurens Natural. Ce projet a pour but de produire des sirops d’isomaltooligosaccharides prébiotiques à ... [more ▼]

Le projet FIRST DEI IMOBIOSE est financé par la région wallonne et en partenariat avec la société Meurens Natural. Ce projet a pour but de produire des sirops d’isomaltooligosaccharides prébiotiques à partir de sirops de céréales et ce dans le respect du cahier des charges biologique, mais également de les caractériser d’un point de vue de leur composition et de leurs effets sur la santé. [less ▲]

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See detailGuide de diagnostic des cas de souffrance relationnelle au travail
Delvaux, Sophie; Faulx, Daniel ULg; Italiano, Patrick ULg et al

Report (2006)

Le rapport est le résultat d'une recherche visant à organiser les connaissances en matière de violences relationnelles au travail de telle sorte que l'intervenant puisse pas à pas affiner sa perception de ... [more ▼]

Le rapport est le résultat d'une recherche visant à organiser les connaissances en matière de violences relationnelles au travail de telle sorte que l'intervenant puisse pas à pas affiner sa perception de la situation qui lui est soumise, en distinguant les différentes formes que peuvent prendre les violences relationnelles. [less ▲]

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See detailDoublement des heures d’éducation physique dans l’enseignement primaire. Analyse des aspects motivationnels au cours de l’année scolaire 2005-2006
Cloes, Marc ULg; Theunissen, Catherine; Maraite, Anne-Aymone et al

Report (2006)

L'objectif de cette expérience consiste à déterminer l'impact d'un programme de doublement des heures d'éducation physique sur les aspects motivationnels, affectifs et le style de vie des élèves des ... [more ▼]

L'objectif de cette expérience consiste à déterminer l'impact d'un programme de doublement des heures d'éducation physique sur les aspects motivationnels, affectifs et le style de vie des élèves des quatre dernières années de dix écoles. Ce rapport se rapporte aux données récoltées durant la première année de l'expérience, soit 2005-2006. [less ▲]

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See detailSeconde campagne de mesure des odeurs sur le CET de Hallembaye Estimation des nuisances olfactives – Etude de l'influence du relief sur la propagation des odeurs.
Nicolas, Jacques ULg; Denne; Hanson, Alain ULg

Report (2006)

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a second campaign on ... [more ▼]

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a second campaign on the site of Hallembaye. The research group applied the usual field inspection technique to assess the global odour emission rate generated by the site. The influence of relief is particularly discussed with the results of 3D modelling. [less ▲]

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See detailReport on the tracer tests (experimental setup, results and interpretation)
Goderniaux, Pascal ULg; Brouyère, Serge ULg; Gutierrez, Alexis et al

Report (2006)

Tracer experiments were performed in the Brévilles test site in order to highlight vertical variations in groundwater fluxes related to vertical variations hydraulic conductivity, to estimate contaminant ... [more ▼]

Tracer experiments were performed in the Brévilles test site in order to highlight vertical variations in groundwater fluxes related to vertical variations hydraulic conductivity, to estimate contaminant travel time from several locations in the catchment to the springs and to identify transport processes affecting the fate of solutes in the saturated part of the aquifer. Following a first tracer experiment with uranine and sulforhodamine G in 2003, four tracer injections were performed in November 2005 in different piezometers, using uranine, sulforhodamine B, iodide and lithium. Tracer concentrations were monitored in the injection wells and at the basin outlet (spring and gauging station). Using the FVPDM method, concentration evolutions monitored in the injection wells allowed one to estimate local Darcy fluxes. At the basin outlet, only two tracers were recovered. Analyses of breakthrough curves confirm the stratification of the aquifer with more permeable levels in the lower part. They also suggest the probable occurrence of vertical interactions within the aquifer. [less ▲]

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See detailValorisation du colostrum bovin. Rapport Scientifique et Technique Final
Halleux, Caroline; Boudry, Christelle ULg; Portetelle, Daniel ULg et al

Report (2006)

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See detailLE DEVELOPPEMENT TERRITORIAL DURABLE
Boniver, Véronique ULg; Denis, Olivier; Derzelle, Christophe et al

Report (2006)

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See detailHow can organic farming contribute to the sustainable production and consumption patterns ?
Mormont, Marc ULg

Report (2006)

A sustainable agricultural production chain (“from stable to table”) is not produced ex nihilo, especially when its future hinges on demand from a supermarket distribution circuit. Many of the standards ... [more ▼]

A sustainable agricultural production chain (“from stable to table”) is not produced ex nihilo, especially when its future hinges on demand from a supermarket distribution circuit. Many of the standards of conventional production chains effectively serve as references for intermediaries and consumers alike. The tensions between sustainability standards and market standards are thus the crucial areas in which negotiations about the chain’s future take place. These inextricably intertwined technical, social, and economic tensions are the subject of this research. These tensions create a situation of uncertainty, that is to say, of choices between pathways. They are both a springboard for action and the cause of inaction, depending on how they are interpreted. This exploration is what justified an intervention-research approach that combines restating questions and changing relations to explore the possible pathways to take. [less ▲]

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See detailActivités économiques et intérêt local : mesure des flux et identification des localisations optimales
Bastin, A.; Fontaine, P.; Istaz, D. et al

Report (2006)

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See detailEtude de faisabilité d'une méthodologie d'évaluation des nuisances olfactives, basée sur un arbre de décision. Jacques
Nicolas, Jacques ULg; Cobut, Pierre; Romain, Anne-Claude ULg et al

Report (2006)

La Région wallonne ne dispose actuellement d’aucune réglementation spécifique aux nuisances olfactives, ni en ce qui concerne les propositions de mesures d’odeurs, ni en matière de valeurs limite à ... [more ▼]

La Région wallonne ne dispose actuellement d’aucune réglementation spécifique aux nuisances olfactives, ni en ce qui concerne les propositions de mesures d’odeurs, ni en matière de valeurs limite à respecter. L’application d’une réglementation ou la préparation de textes nouveaux, se traduit par la nécessité de disposer de méthodes et de moyens de mesures adéquats : ceux-ci sont décrits dans les normes, qu’elles soient allemandes (VDI), françaises (AFNOR), européennes (CEN) ou internationales (ISO). L’objectif principal de cette étude est de tester et d’améliorer la procédure de décision en matière de nuisances olfactives, devant permettre de baliser l’instruction des dossiers d’octroi de permis en fonction de critères propres à l’installation et à son environnement. L’outil qui servira à remplir cet objectif est un arbre de décision dichotomique. Les objectifs secondaires qui en ont découlé sont :  une première « carte d’identité odeur » par secteur d’activité ;  des recommandations en matière d’interprétation des données de mesure dans un objectif de réglementation. Ce rapport débute avec un état de l’art en matière de législation, dans lequel nous abordons la tendance actuelle et la critique des législations nationales ainsi qu’un résumé de la législation de la Région flamande. Le chapitre trois présente les différentes techniques de mesures de l’odeur. Les méthodes peuvent être soit sensorielles, soit physico-chimiques ou soit électroniques. On retrouve par exemple dans les premières : le facteur d’émission, l’olfactométrie dynamique au seuil de perception, le traçage d’odeur sur le terrain, l’évaluation des percentiles, la grille de mesure, le journal tenu par les riverains et l’intensimétrie. L’évaluation systématique de la qualité des méthodes de mesure en termes de précision ou de reproductibilité ne sont pas reprises dans ce rapport, en effet celle -ci peut être trouvée dans la littérature. La méthodologie suivie pour arriver à répondre à l’objectif principal se base sur les trois points suivants : une trentaine de visites d’exploitations industrielles, une discussion avec divers spécialistes et une revue de la bibliographie. Cette méthodologie nous a permis de créer une démarche scindée en une première partie de récolte de données, suivie d’une seconde partie analytique. Dans cette dernière, nous présentons tout d’abord les outils qui permettent d’évaluer l’impact olfactif sur la population et ensuite l’arbre de décision qui a pour fonction de déterminer la méthode de mesure la plus appropriée. [less ▲]

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See detailPALETTE: Grid of Analysis Supporting the Participative Design Methodology
Pironet, Fabienne ULg; Charlier, Bernadette; Daele, Amaury et al

Report (2006)

This deliverable presents the participatory design methodology of the PALETTE project and some first results of the implementation of this process. Some principles of the Actor Network Theory and of the ... [more ▼]

This deliverable presents the participatory design methodology of the PALETTE project and some first results of the implementation of this process. Some principles of the Actor Network Theory and of the Agile Methodology are embedded in the different stages of this methodology whose twelve stages (described in details in the last section) will be the basis of the participative development of services and scenarios of use. The first two stages of the process, establishing the collaboration with the CoPs and modelling their activities, have been implemented. Concrete results are available, i.e. procedures implemented to enrol the partners, methodological tools to gather and analyse the data from the CoPs. Some information has been communicated to partners of WPs 2, 3, 4 and 5 that needed it to progress in the development of their work. This process is not ended; it is iterative and will be refined all along the project. [less ▲]

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See detailManuel de mainstreaming de genre à destination des services publics
Cornet, Annie ULg; Dieu, Anne-Marie ULg; Berenschot et al

Report (2006)

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See detailPerformance énergétique des bâtiments résidentiels en Wallonie : Etude relative à la détermination de la consommation d'énergie primaire de référence
Hauglustaine, Jean-Marie ULg; Dupont, Géraldine ULg; Di Pietrantonio, M. et al

Report (2006)

Objects of the study: - To constitute a sample of representative buildings (individual residences and collectives), a fortnight; - To formulate Eréf, with for objective preserving ethics, varying the ... [more ▼]

Objects of the study: - To constitute a sample of representative buildings (individual residences and collectives), a fortnight; - To formulate Eréf, with for objective preserving ethics, varying the assumptions on the basis of a situation corresponding to the actual position (K55) worms of the more severe requirements; - To calculate and compare the level of consumption of primary energy € according to the Flemish approach and the proposal of FPMs; - To highlight the interests for the various actors from one or the other formulation. [less ▲]

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See detailSustainability of certified production systems : the case of labels in the food sector
Van Huylenbroeck, Guido; Steurbaut, Willy; Mormont, Marc ULg et al

Report (2006)

In a label initiative, the stakeholders are manifold but most important are the producers and producers’associations, the retail sector, the public authorities, the control organisations, environmental ... [more ▼]

In a label initiative, the stakeholders are manifold but most important are the producers and producers’associations, the retail sector, the public authorities, the control organisations, environmental NGO’s, consumer representatives and so on. The basic hypothesis investigated is that the prevailing rules of a label are constructed in such a way that the common objectives of all these stakeholders are maximised while minimising the negative impacts of the label on each of them (e.g. maximising the market share while minimising the cost for producers, retail sector, control cost for both public authorities andcertifying organisations and so on). This can explain differences among labels depending who has been initiating the label or certificate or because of differences in power structure among the stakeholders, but also provide reasons why labels are evolving in a certain way or are not going further although improvements could be possible. The research was based on analysing different labels in the fruit and vegetable sector who have as one of their main objectives to reduce the effects of pesticides on the public health and the environment. Following research questions were analysed: 1. what is the impact of the label or certification rules on farm practices and may these differences ineffects on farm management explain differences in success of labels among farmers; 2. can the environmental impacts of the rules within a label be assessed and can this be an objective basis for analysing differences in emphasis among labels and for evaluating possible improvements in existing labels; 3. are there differences in the social construction of labels, ad who does impact the way labels change farmers’ practices; 4. how do consumers formulate the question of pesticides and do labels provide adequate responses to these questions 5. how do farmers and other stakeholders formulate the question of pesticides and does this influences their view on labelling strategies 6. how do farmers react on possible trajectories to change the rules in a label ? [less ▲]

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See detailGroundwater flow and transport delivered for groundwater quality trend forecasting by TREND T2
Orban, Philippe ULg; Brouyère, Serge ULg

Report (2006)

In the framework of Workpackage R3 Meuse, the Hydrogeology Group of the University of Liège (HGULg) develops a groundwater flow and transport model for the Geer sub-catchment (tributary of the Meuse ... [more ▼]

In the framework of Workpackage R3 Meuse, the Hydrogeology Group of the University of Liège (HGULg) develops a groundwater flow and transport model for the Geer sub-catchment (tributary of the Meuse) (Figure 1, Deliverable R3.16 (Orban et al 2006)). In the scope of TREND T2, the model will be used to develop trend forecasting tools. The objective of the deliverable is to describe new concepts for large-scale transport modelling, more particularly a modelling approach, the Hybrid Finite Element Mixing Cell (HFEMC) developed by HGULg and implemented in the 3D simulator SUFT3D. First steps for the application to the Geer basin are also presented. [less ▲]

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See detailPhotodetection Signals for Controlling Combustion
Parada, Luis; Ngendakumana, Philippe ULg

Report (2006)

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See detailRapport 1 projet FIRST DEI IMOBIOSE
Goffin, Dorothée ULg

Report (2006)

le projet FIRST DEI IMOBIOSE est financé par la région wallonne et en partenariat avec la société Meurens Natural. Ce projet a pour but de produire des sirops d’isomaltooligosaccharides prébiotiques à ... [more ▼]

le projet FIRST DEI IMOBIOSE est financé par la région wallonne et en partenariat avec la société Meurens Natural. Ce projet a pour but de produire des sirops d’isomaltooligosaccharides prébiotiques à partir de sirops de céréales et ce dans le respect du cahier des charges biologique, mais également de les caractériser d’un point de vue de leur composition et de leurs effets sur la santé. - Faculté universitaire des Sciences Agronomiques de Gembloux, Unité de Chimie Biologique Industrielle (Pr Michel Paquot), Unité de Technologie des industries Agroalimentaires (Pr Claude Deroanne et Dr Christophe Blecker) – Université Catholique de Louvain, Unité de recherche de pharmacocinétique, métabolisme, nutrition et toxicologie (Pr Nathalie Delzenne) – National University of Ireland, Department of Chemistry (Pr Angela Savage) – Wageningen University (Pays-Bas), Department of Food Chemistry (Pr Henk Schols) [less ▲]

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See detailIdentités et capital social en Wallonie
Italiano, Patrick ULg; Deflandre, Dimitri; Lejeune, Christophe ULg et al

Report (2006)

Le rapport développe les aspects qualitatifs de la recherche menée en commun avec la région wallonne, en particulier la dimension territoriale et le ciblage sur les publics les plus défavorisés

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See detailEtat de l'Environnement Wallon – Chapitre "Odeur"
Nicolas, Jacques ULg

Report (2006)

The report constitutes a part of the Walloon Environmental status. It refers to environmental odours. It inventories the potential odour sources in Wallonia and presents the available data concerning ... [more ▼]

The report constitutes a part of the Walloon Environmental status. It refers to environmental odours. It inventories the potential odour sources in Wallonia and presents the available data concerning complaints and responses of the society to cope with the odour problems. [less ▲]

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See detailContribution à l'état de l'environnement wallon - Partie : pollutions intérieures
Nicolas, Jacques ULg

Report (2006)

The document is a draft version for a contribution to the Walloon environmental state. It concerns the indoor air pollution. It inventory the possibles pollutants, their sources, their health risks, the ... [more ▼]

The document is a draft version for a contribution to the Walloon environmental state. It concerns the indoor air pollution. It inventory the possibles pollutants, their sources, their health risks, the methods to measure them and their actual guideline values. [less ▲]

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See detailRéalisation et validation d’un banc du système de refroidissement pour pile à combustible de véhicule
Cuevas, Cristian; Duysinx, Pierre ULg; Hannay, Jules et al

Report (2006)

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See detailSeconde campagne de mesure des odeurs sur le CET de Happe- Chapois Estimation des nuisances olfactives
Nicolas, Jacques ULg; Denne, Pierre; Cobut, Pierre

Report (2006)

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a second campaign on ... [more ▼]

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a second campaign on the site of Happe-Chapois. Besides the usual field inspection technique, the research group has used dynamic olfactometry to estimate the odour flux emitted by the tipping area, through a sample collected by a dynamic flux chamber. The report presents also a critical discussion about the advantages and limits of the field inspection technique. [less ▲]

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See detailFormation des entraîneurs sportifs en Communauté française
Cloes, Marc ULg; Theunissen, Catherine ULg

Report (2006)

En octobre 2004, un colloque était organisé à Liège et portait sur la thématique "L'entraînement et la formation sportive: regards croisés des praticiens et des chercheurs". A l'issue d'une table ronde ... [more ▼]

En octobre 2004, un colloque était organisé à Liège et portait sur la thématique "L'entraînement et la formation sportive: regards croisés des praticiens et des chercheurs". A l'issue d'une table ronde ayant rassemblé six entraîneurs renommés, le conférencier principal, le Prof. Trudel de l'Université d'Ottawa posait la question de savoir quelle formation les entraîneurs sportifs devraient idéalement recevoir. L'intérêt suscité par cette thématique, tant auprès des intervenants que des participants, nous a incités à solliciter un subside auprès de la Communauté française pour la réalisation d'une étude pilote destinée à tester une méthodologie de recherche visant à collecter des informations pertinentes sur la formation des entraîneurs francophones belges. ... [less ▲]

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See detailChapter in Basin report for Meuse case on updated research questions and detailed research plan for month 25-42, including a new work package description
Joziasse, Jan; Vink, Jos; Kessels, Eric et al

Report (2006)

The work plan for the period Month 25 – 42 is presented in this deliverable. The activities foreseen are a logical follow-up of the past activities, so no major updates compared to the previous ... [more ▼]

The work plan for the period Month 25 – 42 is presented in this deliverable. The activities foreseen are a logical follow-up of the past activities, so no major updates compared to the previous description of work (covering months 13 – 24) was needed. [less ▲]

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See detailValorisation du colostrum bovin. Rapport Scientifique et technique. Année 3.
Halleux, Caroline; Boudry, Christelle ULg; Portetelle, Daniel ULg et al

Report (2006)

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See detailles énergies renouvelables
Boniver, Véronique ULg; Denis, Olivier; Derzelle, Christophe et al

Report (2006)

Detailed reference viewed: 44 (13 ULg)