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See detailEnvironmental impact assessment of bio-based binders: from production to industrial applications
Gerbinet, Saïcha ULg; Belboom, Sandra ULg; Briard, Vincent et al

Poster (2015, October 15)

A binder is used to hold together the fibers forming the mineral wool products (see figure 1). These fibers can be produced from sand and recycled glass for glass wool products (see figure 2) or from rock ... [more ▼]

A binder is used to hold together the fibers forming the mineral wool products (see figure 1). These fibers can be produced from sand and recycled glass for glass wool products (see figure 2) or from rock (volcanic rock, typically basalt or dolomite) for stone wool products. Traditionally, the binders used in mineral wool products are based on phenol-formaldehyde. Due to sanitary and environmental considerations and increased focus on indoor air quality, the producers developed new alternative binders. Especially, Knauf Insulation, a worldwide building insulation manufacturer, developed a binder based on plant starch and called ECOSE. In addition of not using added phenol-formaldehyde , this new binder is also supposed to reduce the environmental impacts of Knauf Insulation mineral wools. Moreover, due to its properties, others applications are now considered for ECOSE such as composite wood panels [1]. The aim of this study is to determine the environmental impact of ECOSE and to compare it with more traditional binders using Life Cycle Assessment (LCA) methodology. LCA analyzes the environmental aspects and potential impacts associated with all the stages of a product's life. In this type of environmental assessment the energy and material flows for the entire life-cycle are surveyed and analyzed with special attention to possible environmental hazards or human health problems. The ISO 14040 and 14044 norms [2, 3] provide the general guidance for performing an LCA. The LCA methodology is first applied to ECOSE main component: glucose. The presentation will present results for glucose production from cereals starches After that, first ECOSE application, glass mineral wool products will be presented in details, including production process (see figure 3). The modelling of the glass mineral wool production process in LCA software GaBi 6 [4] is then described. One of the model specificity is that it allows to perform LCA of any glass wool products produced in Knauf Insulation plants in Europe. The adaptations to the model to allow studying former glass wool product when using phenol-formaldehyde binders will also be presented such as the advantages of this model. Moreover, preliminary results about ECOSE and phenol-formaldehyde glass wool products are explained. Références [1] Knauf Insulation. [cited 2014; Available from: http://www.knaufinsulation.ua/en. [2] ISO 14044, Environmental management - Life cycle assessment - Requirements and guidelines. 2006. [3] ISO 14040, Environmental management - Life cycle assessment - Principles and framework. 2006. [4] LBP, University of Stuttgart, and PE INTERNATIONAL AG, GaBI 6. 2012: Leinfelden-Echterdingen. p. GaBi 6: Software and database for life cycle engineering. [less ▲]

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See detailBelgian children’s and adolescents’ views on the elderly
Flamion, Allison ULg; Missotten, Pierre ULg; Schroyen, Sarah ULg et al

Poster (2015, October 15)

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See detail"Lirécrire pour apprendre" : d'un outil d'enseignement à sa mise en oeuvre au 1er degré de l'enseignement secondaire
De Croix, Séverine ULg; Wyns, Marielle

Diverse speeche and writing (2015)

Formation à la mise en oeuvre, dans les classes de 1re secondaire, de l'outil "Lirécrire pour apprendre" (Chaire Lirécrire, Fondation Louvain, UCL). Ce dispositif didactique et pédagogique est centré sur ... [more ▼]

Formation à la mise en oeuvre, dans les classes de 1re secondaire, de l'outil "Lirécrire pour apprendre" (Chaire Lirécrire, Fondation Louvain, UCL). Ce dispositif didactique et pédagogique est centré sur l'enseignement explicite, dans l'ordinaire de la classe, des stratégies de lecture nécessaires à la compréhension des textes et des opérations d'écriture requises pour réussir à l'école. [less ▲]

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See detailQuand le parloir devient un lieu de sociabilité urbaine : les réseaux sociaux autour des annonciades célestes entre Italie du Nord et Pays-Bas méridionaux (17e-18e s.)
Henneau, Marie-Elisabeth ULg

Conference (2015, October 15)

Soumises à une clôture particulièrement stricte – qui impressionne les ecclésiastiques les plus rigoureux –, les annonciades célestes ne peuvent évidemment vivre dans l’isolement absolu inscrit ... [more ▼]

Soumises à une clôture particulièrement stricte – qui impressionne les ecclésiastiques les plus rigoureux –, les annonciades célestes ne peuvent évidemment vivre dans l’isolement absolu inscrit symboliquement au cœur de leur spiritualité. Il en va de leur survie dans des contextes souvent difficiles. Sans nécessairement déroger à leurs règles austères, ces femmes entretiennent des relations suivies avec le « monde » pour divers motifs et dans diverses circonstances. Tout en affichant beaucoup de méfiance à l’égard de la « fréquentation des grilles », elles reçoivent pourtant quantité de visites et nombreux sont ceux qui sollicitent l’accès à leurs parloirs. Des liens s’établissent, depuis les plus attendus jusqu’au plus étonnants. Les annonciades se retrouvent ainsi, bon gré mal gré, au cœur de réseaux sociaux qui servent ou desservent leur cause selon les cas. Loin de se cantonner dans le silence et la passivité, ces femmes deviennent des interlocutrices attentives, voire même des actrices influentes au sein de certains espaces urbains. [less ▲]

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See detailIntroduction méthodologique
Henneau, Marie-Elisabeth ULg; Marchal, Corinne

Conference (2015, October 15)

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See detailLe stress à l’aune des neurosciences
Desseilles, Martin ULg

Scientific conference (2015, October 15)

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See detailCollaboration médecin-pharmacien: le point de vue du médecin généraliste
Belche, Jean ULg

Conference (2015, October 15)

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See detailHPLC-DAD IDENTIFICATION OF SOME FLAVONOIDS FROM THE LEAVES AND AERIAL PARTS OF BRYONIA ALBA L. SPECIES SPONTANEOUS IN THE ROMANIAN FLORA
Ielciu, Irina-Ioana ULg; Păltinean, Ramona; Cieckiewicz, Ewa ULg et al

Poster (2015, October 14)

Bryonia alba L. is a climbing species, spontaneous in the Romanian flora, which can be found throughout the whole country [1]. It is known for its cytotoxic, analgesic, antipyretic, anti-inflammatory ... [more ▼]

Bryonia alba L. is a climbing species, spontaneous in the Romanian flora, which can be found throughout the whole country [1]. It is known for its cytotoxic, analgesic, antipyretic, anti-inflammatory, antibacterial, anti-rheumatic, laxative-purgative and smooth muscle relaxant proprieties, being used both in traditional medicine and in homeopathy [2]. The main objective of this study consists in the evaluation of the flavonoid profile of this species. The vegetal material was harvested from the spontaneous flora of Cluj county (Romania). The vegetal extracts were obtained by ultrasonication, in methanol. Analysis of flavonoids was performed by a HPLC-DAD method and revealed mainly the presence of C-glycosides, of which saponarine was found as the main compound. Quantification of saponarin was also performed, using the HPLC method, on samples collected at different periods of time. Variation of the quantity of saponarine according to harvested samples was determined. Further analysis are under process in order to investigate the structure of these flavonoids and the pharmacological effects of the Bryonia alba L. plant extracts. References: 1. *** Flora Europea, vol. 2, Cambridge, Univ. Press. Cambridge London-New York Melbourne, 1979, p. 298-299 2. Demarque D, Jouanny J, Poitevin B, Saint Jean Y. Pharmacologie et matière médicale homéopathique, 3ième edition, France, CEDH, 2007. [less ▲]

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See detailGuided group purchases of energy renovation services and works in deprived urban neighbourhoods
Ruelle, Christine ULg; Teller, Jacques ULg

in Energy Efficiency (2015)

The energy retrofitting of housings is progressing very slowly in Wallonia (Belgium) despite individual fiscal measures and subsidies offered by public authorities to support households engaging in this ... [more ▼]

The energy retrofitting of housings is progressing very slowly in Wallonia (Belgium) despite individual fiscal measures and subsidies offered by public authorities to support households engaging in this process. This paper explores the use of a method called ‘Guided Group Purchases’ (GPPs), i.e. an approach combining support, guidance and group purchasing of energy renovation services and works, as a possible method to accelerate the retrofitting of the existing housing stock. It reports on an action research experiment conducted in the context of the Interreg project ‘SUN’ (Sustainable Urban Neighbourhoods). The results of this experiment are quite promising. Within a few months, some 80 energy retrofitting interventions (energy audits or insulation works) were implemented in one neighbourhood of the city of Liège. Our evaluation of the experiment showed that the prospect of achieving cost reductions was one of the main initial expectations of participants to the GGPs. Still the participants rather insisted on other benefits after taking part to the initiative. These benefits were mostly related to the guidance they received, to the facilitation with contractors and to the social dynamics generated by the initiative. Several weaknesses were also identified by participants, like the lack of follow-up during and after the works. Our evaluation also highlighted that the main landlords did not participate in the initiative and that the influence of GGPs on costs was limited to specific types of interventions. Despite observed limitations and possible improvements, such a neighbourhood-based approach certainly constitutes a promising avenue for public authorities to support and accelerate the energy retrofitting of private residential buildings in urban neighbourhoods. [less ▲]

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See detailDirect exoplanet detection and characterization using the ANDROMEDA method: Performance on VLT/NaCo data
Cantalloube, F.; Mouillet, D.; Mugnier, L. M. et al

in Astronomy and Astrophysics (2015), 582

Context. The direct detection of exoplanets with high-contrast imaging requires advanced data processing methods to disentangle potential planetary signals from bright quasi-static speckles. Among them ... [more ▼]

Context. The direct detection of exoplanets with high-contrast imaging requires advanced data processing methods to disentangle potential planetary signals from bright quasi-static speckles. Among them, angular differential imaging (ADI) permits potential planetary signals with a known rotation rate to be separated from instrumental speckles that are either statics or slowly variable. The method presented in this paper, called ANDROMEDA for ANgular Differential OptiMal Exoplanet Detection Algorithm is based on a maximum likelihood approach to ADI and is used to estimate the position and the flux of any point source present in the field of view. Aims. In order to optimize and experimentally validate this previously proposed method, we applied ANDROMEDA to real VLT/NaCo data. In addition to its pure detection capability, we investigated the possibility of defining simple and efficient criteria for automatic point source extraction able to support the processing of large surveys. Methods. To assess the performance of the method, we applied ANDROMEDA on VLT/NaCo data of TYC-8979-1683-1 which is surrounded by numerous bright stars and on which we added synthetic planets of known position and flux in the field. In order to accommodate the real data properties, it was necessary to develop additional pre-processing and post-processing steps to the initially proposed algorithm. We then investigated its skill in the challenging case of a well-known target, $\beta$ Pictoris, whose companion is close to the detection limit and we compared our results to those obtained by another method based on principal component analysis (PCA). Results. Application on VLT/NaCo data demonstrates the ability of ANDROMEDA to automatically detect and characterize point sources present in the image field. We end up with a robust method bringing consistent results with a sensitivity similar to the recently published algorithms, with only two parameters to be fine tuned. Moreover, the companion flux estimates are not biased by the algorithm parameters and do not require a posteriori corrections. Conclusions. ANDROMEDA is an attractive alternative to current standard image processing methods that can be readily applied to on-sky data. [less ▲]

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See detailPourquoi et comment enseigner l'histoire à l'école secondaire ?
Jadoulle, Jean-Louis ULg

Conference given outside the academic context (2015)

Cette conférence avait pour objet de présenter l'ouvrage de synthèse de J.-L. Jadoulle, Faire apprendre l’histoire. Pratiques et fondements d’une « didactique de l’enquête » en classe du secondaire, Namur ... [more ▼]

Cette conférence avait pour objet de présenter l'ouvrage de synthèse de J.-L. Jadoulle, Faire apprendre l’histoire. Pratiques et fondements d’une « didactique de l’enquête » en classe du secondaire, Namur, Erasme, 2015. [less ▲]

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See detailCircuits Courts Locaux comme réponse au défi climatique
Ozer, Pierre ULg

Conference given outside the academic context (2015)

Manger de façon plus respectueuse de l'environnement n'est pas seulement nécessaire, c'est aussi délicieux ! Lors de cette soirée, nous aborderons la question du lien entre alimentation et environnement ... [more ▼]

Manger de façon plus respectueuse de l'environnement n'est pas seulement nécessaire, c'est aussi délicieux ! Lors de cette soirée, nous aborderons la question du lien entre alimentation et environnement avec Pierre Ozer, docteur en géographie, spécialiste du climat et bon vivant. Nous échangerons également avec Micheline Halleux, qui tient le Temps des Cerises, magasin bio bien connu du Laveu, Mario Gotto, qui a lancé le Como en Casa, restaurant tout autant gastronomique que biologique, où se déroulera cette assemblée et Benoit Noël, de la Ceinture Aliment-Terre. Des dégustations illustreront les propos tout au long de la soirée. [less ▲]

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See detailL’approche par compétences, un atout pour la professionnalisation des étudiants ?
Georges, François ULg

Scientific conference (2015, October 14)

Notre intervention propose un tour d’horizon de l’approche compétence et de son potentiel en terme de professionnalisation. Après avoir défini le concept de compétence et mis en garde contre certains ... [more ▼]

Notre intervention propose un tour d’horizon de l’approche compétence et de son potentiel en terme de professionnalisation. Après avoir défini le concept de compétence et mis en garde contre certains écueils, nous présentons quelques méthodes susceptibles de servir le développement et l’évaluation des compétences. Une attention particulière est prêtée à la notion de progression et à au nécessaire changement de paradigme qu’impose l’approche compétence en matière d’évaluation. [less ▲]

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See detailBarthes et Robbe-Grillet : "Je n'aurais pas voulu qu'il fasse du cinéma"
Lorent, Fanny ULg

Conference (2015, October 14)

Detailed reference viewed: 31 (2 ULg)
See detailMémoire et fonctions exécutives: Nouvelles pistes de recherche
Collette, Fabienne ULg

Conference (2015, October 14)

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See detailPisot property for Arnoux-Rauzy-Poincaré algorithm
Labbé, Sébastien ULg

Conference (2015, October 14)

Detailed reference viewed: 14 (7 ULg)
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See detailL'impact de l'économie sociale et solidaire (conférence d'ouverture)
Defourny, Jacques ULg

Conference given outside the academic context (2015)

Detailed reference viewed: 36 (0 ULg)