(Bio)-amphiphilic compounds as biohybrid materials: the case of peptidolipids and glycolipids

Conference (2013, March)

(Bio)-hybrid compounds are constituted by at least two distinct classes of component covalently linked within the same structure. Amphiphilic compounds of peptide- and oligosaccharide-lipid groups are ... [more ▼]

(Bio)-hybrid compounds are constituted by at least two distinct classes of component covalently linked within the same structure. Amphiphilic compounds of peptide- and oligosaccharide-lipid groups are among representatives bio-hybrid molecules with increasing interests since each of them contains two entities belonging to important categories of biological molecules like proteins, carbohydrates, and lipids. The strength of such compounds is by far their possibility to exhibit multifunctional properties and activities, specifically developed by each of these three biomolecule classes. In addition, their intermediate size with regard to small and large molecular structures may present certain undeniably advantages, for instance, a lower diffusivity and a greater solubility in aqueous solution compared to small and polymeric surfactants, respectively. In this paper, the case of peptide and carbohydrate-based surfactants containing a linear series of alkyl fats will be presented and discussed regarding to interfacial properties, colloidal stabilities, and biological activities with the perspective of getting more efficient hybrid compounds by rational design approaches. [less ▲]

Development of advanced models for transition to turbulence in hypersonic flows and prediction of transition under uncertainties

in Serino, Gennaro (Ed.) Review of the VKI Doctoral Research 2012-2013 (2013, March)

L'apport de l'analyse biomécanique 3-D dans les stratégies préventives à partir de 2 exemples

in Julia, M; Croisier, Jean-Louis; Perrey, S (Eds.) et al Prévention des troubles musculo-squelettiques chez le sportif (2013)

De nouveaux outils de mesure permettent de quantifier la cinématique et la dynamique articulaire fonctionnelle des athlètes (systèmes optoélectroniques 3D, plateforme de forces, électromyographie, …). Ces ... [more ▼]

De nouveaux outils de mesure permettent de quantifier la cinématique et la dynamique articulaire fonctionnelle des athlètes (systèmes optoélectroniques 3D, plateforme de forces, électromyographie, …). Ces données sont importantes dans le sens où elles donnent à l’équipe médicale et sportive des informations objectives sur le geste du sportif dans sa pratique réelle. Elles favorisent la compréhension et l’amélioration de la performance ainsi que la prévention lésionnelle et la détection de situations à risque. Dans le cadre d’un suivi longitudinal des sportifs, ces mesures sont intéressantes pour mettre en place des critères objectifs et spécifiques à l’athlète de retour sur le terrain après une blessure. Ce document a pour objectif de présenter les principaux outils disponibles dans les laboratoires de biomécanique et d’illustrer leurs utilisations à travers 2 exemples : l’influence de la raideur de l’épaule sur la mobilité de l’épaule et l’analyse cinématique du service au tennis. [less ▲]

Relationships between the P status of surface and deep horizons of agricultural soils under various cropping systems and for different soil types: a case study in Belgium

in Soil Use and Management (2013), 29(S1), 103--113

Application of phosphorus (P) fertilizers to agricultural soils should be based on sound knowledge about soil P reserves, availability and lability to optimize conditions for plant uptake while limiting P ... [more ▼]

Application of phosphorus (P) fertilizers to agricultural soils should be based on sound knowledge about soil P reserves, availability and lability to optimize conditions for plant uptake while limiting P transport to surface waters. This study investigated relationships between parent material (PM), land use and P fractions in agricultural soils at a regional scale. Surface and deep (100–120 cm) soil samples were collected from 120 agricultural sites (240 total samples) and analysed for three P forms (inorganic, organic and available) as well as for additional key properties. Land uses within the study area were continuous cropland, permanent pasture and temporary grassland. The area covered the 12 most common parent types in Wallonia. Mean total P contents were 904 and 401 mg/kg in surface and deep samples, respectively, with a 33% coefficient of variation for both horizons. The organic P fraction represented, on average, 30% of total P, while available P corresponded to 9% of total P. The influence of PM was apparent in both the surface and deep soil samples, while land use influenced only surface properties. The pattern in total P content relative to land use was pasture ≥ cropland ≥ temporary grassland. Correlation analyses highlighted significant relationships between edaphic parameters viz Alox, Feox, CEC, TOC, pH and P content, the main soil parameter being Alox which determines P sorption capacity. An enrichment factor was used to distinguish between geogenic sources and human activities in terms of topsoil P content. [less ▲]

Aspects spécifiques des démarches préventives chez le jeune sportif

in Prévention des troubles musculo-squelettiques chez le sportif (2013)

L'équilibre de force musculaire agonistes / antagonistes

in Prévention des troubles musculo-squelettiques chez le sportif (2013)

Multi-method monitoring of odor emissions in agricultural biogas facilities.

in Proceedings of the 5th IWA conference on odours and air emissions, San Francisco, USA, March, 4-7, 2013 (2013, March)

The production of farm-based biogas and electricity is an area of alternative-energy interest to many livestock producers. However, it is still insignificant in comparison to the maximum potential of ... [more ▼]

The production of farm-based biogas and electricity is an area of alternative-energy interest to many livestock producers. However, it is still insignificant in comparison to the maximum potential of farms all over the world. Market penetration should involve better confidence in the technique and better understanding of its possible assets and limits. For instance, is the environmental impact of biomethanation positive or negative? What are the possible ways to avoid or to control process imbalances? In the context of a European project, the research group attempted to tackle those questions under the angle of gas emission and more particularly of odor annoyance. A multi-method approach was applied to monitor biogas and odor emissions, both at the laboratory level on pilot plants and at real scale in 4 agricultural biogas facilities, in Belgium, Luxembourg, France and Germany. Results show that digested material is generally less odorant than crude manure or slurry, while preserving all the amendment and fertilizing qualities of the original material. Possible annoyance of agricultural biogas facilities in the surroundings remains limited and can be solved through simple techniques. [less ▲]

Le diocèse d'Eupen et de Malmedy. Quelques considérations sur l'attitude de l'Église face aux "frères retrouvés" durant l'Entre-deux-guerres (première partie)

Article for general public (2013)

D31-1238: Développement et utilisation des anticorps du jaune d'oeuf en vue du contrôle des Salmonella spp. dans le tube digestif du poulet de chair (Rapport final)

Report (2013)

Schmallenberg virus circulation in Belgium in 2012

in Veterinary Record : Journal of the British Veterinary Association (2013), 172

Field and laboratory observations suggest that Schmallenberg virus was circulating in Belgium during the summer 2012 despite a very high herd immunity. Further studies will be conducted to determine ... [more ▼]

Field and laboratory observations suggest that Schmallenberg virus was circulating in Belgium during the summer 2012 despite a very high herd immunity. Further studies will be conducted to determine whether we are observing the last cases of this epizootic or if the above calves announce a transition to endemicity. [less ▲]