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See detailContinuum-level modelling of cellular adhesion and matrix production in aggregates.
Geris, Liesbet ULg; Ashbourn, Joanna M A; Clarke, Tim

in Computer Methods in Biomechanics & Biomedical Engineering (2011), 14(5), 403-10

Key regulators in tissue-engineering processes such as cell culture and cellular organisation are the cell-cell and cell-matrix interactions. As mathematical models are increasingly applied to investigate ... [more ▼]

Key regulators in tissue-engineering processes such as cell culture and cellular organisation are the cell-cell and cell-matrix interactions. As mathematical models are increasingly applied to investigate biological phenomena in the biomedical field, it is important, for some applications, that these models incorporate an adequate description of cell adhesion. This study describes the development of a continuum model that represents a cell-in-gel culture system used in bone-tissue engineering, namely that of a cell aggregate embedded in a hydrogel. Cell adhesion is modelled through the use of non-local (integral) terms in the partial differential equations. The simulation results demonstrate that the effects of cell-cell and cell-matrix adhesion are particularly important for the survival and growth of the cell population and the production of extracellular matrix by the cells, concurring with experimental observations in the literature. [less ▲]

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See detailCoûts et valeur ajoutée dans la commercialisation des perches de teck au Sud-Bénin
Aoudji, Augustin K. N.; Adégbidi, Anselme; Agbo, Valentin et al

in Cahiers Agricultures (2011), 20(6 (Novembre-Décembre 2011)), 480-486

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See detailQuestionner le tourisme rural
Schmitz, Serge ULg; Decroly, Jean Michel

Book published by Société géographique de Liège (2011)

Questionner le tourisme rural, c’est se poser la question des particularités de celui-ci notamment liées à sa dispersion, à ses difficultés d’organisation en une « destination », à ses représentations ... [more ▼]

Questionner le tourisme rural, c’est se poser la question des particularités de celui-ci notamment liées à sa dispersion, à ses difficultés d’organisation en une « destination », à ses représentations idylliques, à ce patrimoine plus ou moins commun, plus ou moins privatisé, que le touriste consomme, aux difficiles questions du partage des revenus du développement touristique, aux problèmes des équipements et surtout de l’accessibilité par transports individuels et collectifs de ces zones excentrées. Autour de quelques collègues soucieux de partager leur enthousiasme pour la recherche, nous avons convié des doctorants à partager dans le cadre d’une journée de l’école doctoral thématique en géographie auprès du Fonds National de la Recherche Scientifique, leurs interrogations et leurs premières investigations. Ce numéro thématique rassemble les principales contributions à cette réflexion commune, en proposant une étude de l'utilisation de l’autoroute pour développer des produits touristiques à proximité d’un flux important de personnes (Malet, 21-35), une analyse de la mise en tourisme d'un produit de terroir et de la manière d'en faire une ressource clé du tourisme régional (De Myttenaere, 37-51), une recherche sur les images et représentations d'une destination rurale et leur utilisation pour développer l’accueil et la promotion (Mazuel et Bonniot, 7-19), une enquête sur le rôle des associations intercommunales et des municipalités dans le développement des entreprises touristiques en milieu rural (Vanneste et Ryckaert 53-71), une réflexion sur la complexité des polémiques autour des loisirs motorisés (Haye et Mounet, 73-84) et enfin une lecture critique de textbooks anglais qui permet de constater le chemin fait et le chemin qui reste à faire pour réellement passer des monographies à des théories du tourisme sensibles aux particularités du milieu rural (Dubois, 85-94). [less ▲]

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See detailLe bioraffinage, une alternative prometteuse à la pétrochimie
Laurent, Pascal ULg; Roiz, Julie ULg; Wertz, Jean-Luc ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(4), 597-610

Because of the price increase of fossil resources, of their uncertain availability and because of environmental concerns, alternative solutions able to mitigate global warming, and reduce the consumption ... [more ▼]

Because of the price increase of fossil resources, of their uncertain availability and because of environmental concerns, alternative solutions able to mitigate global warming, and reduce the consumption of fossil fuels and carbon dioxide emissions should be promoted. The replacement of petroleum with biomass as raw material for bioenergy (biofuels, power and heat) and chemical production is an interesting option and is the driving force for the development of biorefinery complexes that will have a critical role to play in our common future. A biorefinery is a facility that integrates biomass conversion processes and equipment to produce fuels, power, heat and chemicals from biomass. In biorefinery, almost all types of biomass feedstocks can be converted to different classes of biofuels and biochemicals through various processes that maximize economic and environmental benefits, while minimizing waste and pollution. Through the integration of green chemistry into biorefineries, and the use of low environmental impact technologies, future sustainable production chains of biofuels and high value chemicals from biomass can therefore be established. Currently, the green biorefinery, the whole-crop biorefinery, the oilseed biorefinery and the lignocellulosic feedstock biorefinery are favoured in research, development and industrial implementation, essentially through fully integrated biorefinery complexes. [less ▲]

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See detailThe Ri chicken breed and livelihoods in North Vietnam: characterisation and prospects
Moula, Nassim ULg; Do Duc, Luc ULg; Pham Kim, Dang et al

in Journal of Agriculture and Rural Development in the Tropics and Subtropics (2011), 112(1), 57-69

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See detailVade-Mecum à l'usage des gestionnaires de mosquées en Région wallonne
Husson, Jean-François ULg; Beckers, Paul; Berger, Cécile et al

Learning material (2011)

Ensuing various ad hoc training sessions organized for mosque administrators with governmental support, this vade mecum is aimed at administrators of officially recognized mosques in Wallonia. It presents ... [more ▼]

Ensuing various ad hoc training sessions organized for mosque administrators with governmental support, this vade mecum is aimed at administrators of officially recognized mosques in Wallonia. It presents the general environment relating to mosques in Wallonia and deals various specific aspects such as recognition procedure, budgets, accounts, public tendering, etc. [less ▲]

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See detailEditorial : Questionner le tourisme rural
Schmitz, Serge ULg; Decroly, Jean Michel

in Schmitz, Serge; Decroly, Jean Michel (Eds.) Questionner le tourisme rural (2011)

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See detailX-rays nanotomography in a scanning electron microscope–capabilities and limitations for materials research
Pyka, Grzegorz; Kerckhofs, Greet ULg; Pauwels, Bart et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailDuden - Deutsches Universalwörterbuch
Auberle, Anette; Eickhoff, Birgit; Haller-Wolf, Angelika et al

Book published by Dudenverlag - 7ème éd. (2011)

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See detailDispatcher-assisted telephone cardiopulmonary resuscitation using a French-language compression-only protocol in volunteers with or without prior life support training: A randomized trial.
Ghuysen, Alexandre ULg; Collas, D.; Stipulante, Samuel ULg et al

in Resuscitation (2011)

OBJECTIVES: Due to the recent interest in hands-only protocols for dispatcher-assisted cardiopulmonary resuscitation (CPR) and the lack of any validated algorithms in French, our primary objective was to ... [more ▼]

OBJECTIVES: Due to the recent interest in hands-only protocols for dispatcher-assisted cardiopulmonary resuscitation (CPR) and the lack of any validated algorithms in French, our primary objective was to evaluate a new French-language protocol in terms of its efficacy to help previously untrained volunteers in performing basic life support efforts of appropriate quality, and secondarily to investigate its potential utility in subjects with previous training. METHODS: Untrained volunteers were recruited among adults in a public movie centre and previously trained volunteers among undergraduate nursing students. Participants were randomly assigned to 'phone CPR' versus 'no phone CPR' by drawing sets of envelopes. Primary outcome measures were the results of the Cardiff evaluation test; the secondary measures were global scoring of a complete 5min period of CPR, in a manikin model of cardiac arrest. RESULTS: Out of 146 volunteers assessed for eligibility, 36 previously untrained candidates declined participation. 110 participants, distributed into four groups, completed the study: the previously untrained non-guided group (group A, n=30), the previously untrained guided group (group B, n=30), the previously trained non-guided group (group C, n=25) and the previously trained guided group (group D, n=25). Results of the Cardiff test and global evaluation of CPR performance revealed a significant improvement in group B as compared with group A, approaching the level of the group C. Previously trained guided bystanders had the best CPR scores, notably because of an improvement in the quality of airway management. CONCLUSION: When used by dispatchers, this new French-language algorithm offers the opportunity to help previously untrained bystanders initiate CPR. The same protocol may serve to guide volunteers with prior basic life support training to reach their best CPR performance. [less ▲]

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See detailÉvolution de l’impact environnemental lié à la gestion des déchets ménagers en Belgique (Liège) durant les trente dernières années
Belboom, Sandra ULg; Renzoni, Roberto ULg; Digneffe, Jean-Marc et al

in SFGP (Ed.) Récents Progrès en Génie des Procédés (2011)

The goal of this study was to evaluate the improvement of waste management through the last thirty years. Four steps of time and of technologies of waste treatment were evaluated. The first scenario is ... [more ▼]

The goal of this study was to evaluate the improvement of waste management through the last thirty years. Four steps of time and of technologies of waste treatment were evaluated. The first scenario is situated before 1970 with waste landfilling without recuperation and valorization of gas. The second one considers the situation between 1990 and 2009 with a unit comprising grinding and sorting of waste to obtain fluff which was burnt in an incinerator, remaining waste being sent to sanitary landfill with recuperation and valorization of gas. The third one is the current one, in operation since 2009, with incineration of the whole of the residual municipal waste. The last scenario is about future considering the current installation and adding a biomethanation of the biodegradable fraction of household waste. Main result of this study is the improvement through years starting from the important environmental impact of landfilling to a negative impact with the current installation coupled with biomethanation. Global warming impact from the eighties was reduced by 4 in the years 1990-2008, by 6 for the current scenario alone or coupled with a biomethanation plant. Valorization of electricity is helpful to reduce consumptions of fuels and associated impacts. This study confirms the improvement of technologies and emissions of waste management through years. [less ▲]

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See detailL'image du mois. Le comble du coiffeur: avoir un poil dans la main.
CAUCANAS, Marie ULg; FRANCHIMONT, Claudine ULg; PIERARD, Gérald ULg

in Revue Médicale de Liège (2011), 66(4), 177-8

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See detailProblèmes du bilinguisme dans l'Antiquité gréco-romaine
Rochette, Bruno ULg

in Genet, Jean-Philippe (Ed.) Langues et histoire. Actes du colloque de l'Ecole doctorale d'histoire de Paris 1 INHA, 20 et 21 octobre 2006 (2011)

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See detailDiscovering the lichen diversity of a remote tropical island: working list of species collected on Reunion (Mascarene archipelago, Indian Ocean)
Sérusiaux, Emmanuël ULg; van den Boom, Pieter P. G.; Brand, Maarten et al

in Herzogia (2011), 24(2), 325-349

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A ... [more ▼]

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A total of c. 600 species is estimated for the number of lichenized fungi present on the island; although this is a low figure for a varied tropi- cal area, this is plausible due to its small size and remoteness. The significance of the lichen diversity of the island lays in its endemics, which need further study for a reliable assessment, and in the occurrence of a poorly known southern hemisphere element (“austral” species). The discovery of the following in Reunion is of special interest as it considerably enlarges their distribution range: Anzia corallophora, Caloplaca caesiosorediata, Coccocarpia delicatula, Fuscopannaria praetermissa, Gomphillus morchelloides, G. pedersenii, Gyalideopsis bispora, Heterodermia koyana, Hypotrachyna evansii, Lithogyalideopsis zeylandica, Lobaria asperula, Megaloblastenia marginiflexa var. dimota, Menegazzia capitata, Myeloconis erumpens and Pannaria squamulosa. [less ▲]

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See detailElectronic and thermoelectric properties of Fe2VAl: The role of defects and disorder
Bilc, Daniel ULg; Ghosez, Philippe ULg

in Physical Review. B, Condensed Matter and Materials Physics (2011), 83

Using first-principles calculations, we show that Fe2VAl is an indirect band-gap semiconductor. Our calculations reveal that its semimetallic character (which is sometimes assigned) is not an ntrinsic ... [more ▼]

Using first-principles calculations, we show that Fe2VAl is an indirect band-gap semiconductor. Our calculations reveal that its semimetallic character (which is sometimes assigned) is not an ntrinsic property but originates from magnetic antisite defects and site disorder, which introduce localized in-gap and resonant states changing the electronic properties close to the band gap. These states negatively affect the thermopower S and the power factor equal to S2σ, decreasing the good thermoelectric performance of intrinsic Fe2VAl. [less ▲]

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