References of "Scientific congresses and symposiums"
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See detailPlantes médicinales et paludisme
Angenot, Luc ULg

Conference (2009, October 07)

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See detailLa politique étrangère de l’administration d’Álvaro Uribe Vélez : Le paradoxe entre vouloir et réussir une intégration sous-régionale latino-américaine
Parra Santamaria, Lusmiriam Andrea ULg

Conference (2009, October 03)

This communication is about the Alvaro Uribe Velez' (two periods) commercial foreign policy. By a constructivist description of this policy I showed its paradox. The objectif of working for regional ... [more ▼]

This communication is about the Alvaro Uribe Velez' (two periods) commercial foreign policy. By a constructivist description of this policy I showed its paradox. The objectif of working for regional integration (of Andean Community of Nations) was banned by this President´s unilateral political actions. [less ▲]

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See detailVitamin D, Status and perspectives
CAVALIER, Etienne ULg

Conference (2009, October 02)

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See detailUtiliser une recherche-action comme étape d'une innovation
Absil, Gaëtan ULg; Vandoorne, Chantal ULg

Poster (2009, October 02)

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See detailLe management des entreprises de l'économie sociale
Mertens de Wilmars, Sybille ULg

Conference (2009, October 02)

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See detailThe Management of Social Enterprises
Mertens de Wilmars, Sybille ULg

Conference (2009, October 02)

This presentation describes the ways in which social enterprises are managed in order to successfully combine social mission and economic activities.

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See detail"Premier point: l'écriture"
Sofia, Estanislao ULg

Conference (2009, October 02)

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See detailLe droit immobilier en Europe : perspectives d’avenir
Kohl, Benoît ULg

Conference (2009, October 02)

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See detailAu-delà de la schizophrénie postcoloniale : Becoming Abigail de Chris Abani
Tunca, Daria ULg

Conference (2009, October 01)

Detailed reference viewed: 26 (1 ULg)
See detailVoraussage und ethische Bewertung von zukünftigen Rohstoff- und Energieszenarien
Kopriwa, Nicole; Fayyaz, Sara; Hillerbrand, Rafaela et al

Conference (2009, October 01)

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See detailSwimming ontogeny in Dicentrarchus labrax
Olivier, Damien ULg; Parmentier, Eric ULg

Poster (2009, October)

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See detailTotal Electron Content monitoring using triple frequency GNSS: results with GIOVE-A data
Spits, Justine; Warnant, René ULg

in Proceedings of the Second International Colloquium - Scientific and Fundamental Aspects of the Galileo Programme (2009, October)

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See detailPourquoi une mesure de force musculaire en kinésithérapie sportive ?
Croisier, Jean-Louis ULg

in Les outils d'évaluation : peut-on encore les ignorer ? (2009, October)

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See detailL'évaluation fonctionnelle et musculaire de l'épaule pathologique
Forthomme, Bénédicte ULg

in Livre des résumés du 1er Congrès de la Société Scientifique de Kinésithérapie : "Les outils d'évaluation Peut-on encore les ignorer ?" (2009, October)

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See detailThe clinical and economic burden of non-adherence with oral bisphosphonates in osteoporotic patients
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Bruyère, Olivier ULg et al

in Arthritis and Rheumatism (2009, October), 60(number 10 (suppl.)), 328

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See detailHigh diversity in late Early Cretaceous ichthyosaurs
Fischer, Valentin ULg; Guiomar, Myette; Godefroit, Pascal

Poster (2009, October)

Considered as the last survivors of a dying group, all Cretaceous ichthyosaurs have traditionally been incorporated within a single genus, Platypterygius. This waste-basket genus includes large ... [more ▼]

Considered as the last survivors of a dying group, all Cretaceous ichthyosaurs have traditionally been incorporated within a single genus, Platypterygius. This waste-basket genus includes large ichthyosaurs with numerous, large and conical tooth crowns and bulbous polygonal root well anchored in dental grooves. With such a dentition, Platypterygius can be included within the “Smash guild”. However, the study of new specimens from the Aptian-Albian marls of the Vocontian basin (SE France) reveals an unexpected diversity of late Early Cretaceous ichthyosaurs. Beside “classical” Platypterygius specimens, another type of ichthyosaur with very tiny and pointed teeth has been found in the mid-Albian marls of Sisteron, in High-Provence Alps. This new taxon is based on a partial crushed skull, two basioccipitals, 8 teeth, and 15 centra. The teeth range from 20mm to 2cm and are highly compressed labio-lingualy, with a thickness/wideness ratio of the root sometimes as low as 1/4. Crowns are slightly curved and sharply pointed, indicating a diet of small and soft preys. Interestingly, although the rostral bones are slender and delicate – thus radically different from conventional Late Early Cretaceous ichthyosaurs – the basioccipital of this taxon shares many characters with Platypterygius and is of the same overall size. Together with the recently named genus Maiaspondylus from the Albian of western Canada, these specimens suggest a higher diversity of late Early Cretaceous ichthyosaurs, in contradiction with the current view of ichthyosaur extinction, said to be gradually decreasing in diversity since the Middle Jurassic. In fact, the number of ecological niches occupied by ichthyosaurs apparently even increased from the Late Jurassic until the late Early Cretaceous. Therefore, the ecological impact of the Cenomanian-Turonian boundary on marine reptile faunas was probably more severe than previously thought. [less ▲]

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See detailVaccination with class-I restricted PrP peptides induces cytotoxic CD8+ T cells and prolongs the clinical phase duration of murine scrapie
Bruley Rosset, Martine; Sacquin, Antoine; Defaweux, Valérie ULg et al

Poster (2009, October)

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See detailLe PRP (Platelet-Rich Plasma) peut-il favoriser la régénération tendineuse ?
Kaux, Jean-François ULg; Drion, Pierre ULg; Pascon, Frédéric ULg et al

in Annales de Réadaptation et de Médecine Physique (2009, October), 52(Sup. 1), 109-110

Introduction : Certaines tendinopathies (l’épicondylite, la tendinopathie rotulienne supérieure ou encore la tendinopathie d’Achille) demeurent rebelles malgré un traitement « classique » bien conduit ... [more ▼]

Introduction : Certaines tendinopathies (l’épicondylite, la tendinopathie rotulienne supérieure ou encore la tendinopathie d’Achille) demeurent rebelles malgré un traitement « classique » bien conduit : repos, orthèse, AINS, électrothérapie, kinésithérapie, infiltrations de corticoïdes, ondes de choc... Certains travaux, essentiellement in vitro, soulignent les potentialités réparatrices des plaquettes qui présentent la capacité d’accélérer la cicatrisation de différents tissus : os, muscles et tendons. Objectifs : Le but de notre étude préliminaire est d’objectiver l’effet « accélérateur » sur la réparation tendineuse suite à l’emploi d’injection de plasma enrichi en plaquettes (platelet-rich plasma ou PRP) car cette technique pourrait représenter une thérapeutique d’avenir en médecine physique et en traumatologie du sport. Méthodes : Nous avons sectionné et réalisé un défect de 5mm dans le tendon d’Achille de rats (N = 12). Quatre rats ont bénéficié d’une injection in loco de PRP et remis en liberté comme les autres dans leur cage. Trois rats (2 sans PRP et 1 avec PRP) sont euthanasiés à J5, J10, J20 et J30 et le tendon d’Achille en cours de régénération est disséqué et prélevé. Une étude biomécanique de traction jusqu’à rupture est réalisé à l’aide de « Cryo-jaw ». Résultats : L’analyse des résultats montre que la force développée pour obtenir la rupture tendineuse doit être plus importante pour les tendons ayant bénéficié d’une injection de PRP et ce dès J5. Discussion – Conclusion : Cette série préliminaire permet de montrer que les injections de PRP permettent une accélération de la cicatrisation tendineuse et une augmentation des valeurs de résistances à la traction. Une étude avec un plus grand nombre de sujets est en cours. [less ▲]

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See detailExtending Routers Utilisability and Life Cycle through Automated Configuration Management
Rodriguez, Francisco; Hoerdt, Mickael; Mathy, Laurent ULg

in IPOM '09 Proceedings (2009, October)

We present the design of a distributed router platform aimed at consolidating multiple hardware routers. The goal of the approach is twofold: firstly decouple the logical routing and forwarding ... [more ▼]

We present the design of a distributed router platform aimed at consolidating multiple hardware routers. The goal of the approach is twofold: firstly decouple the logical routing and forwarding functionality from the limitations of the hardware that runs it, through automated configuration management only; and secondly, give component routers a longer lease of life, as constituting parts of a larger router system. We focus on the logical intra-domain routing function provided by routers, and show the need for a centralized intra-domain route server. [less ▲]

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See detailL'évaluation de la musculature rachidienne du lombalgique : analyse critique des outils disponibles
Vanderthommen, Marc ULg; Demoulin, Christophe ULg

in Livre des résumés du 1er Congrès de la Société Scientifique de Kinésithérapie : "Les outils d'évaluation Peut-on encore les ignorer ?" (2009, October)

Detailed reference viewed: 84 (17 ULg)
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See detailNEMA NU1-2001 performance tests of Philips Brightview SPECT cameras
Seret, Alain ULg

in European Journal of Nuclear Medicine and Molecular Imaging (2009, October), 36(S2), 408

Detailed reference viewed: 173 (6 ULg)
See detailAffective valence influences participant’s susceptibility to false memories and illusory recollection
Dehon, Hedwige ULg; laroi, Frank; Van der Linden, Martial

Poster (2009, October)

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See detailObjective study of spatial attributes in the room impulse response's late part and their relevance for auralization
Billon, Alexis ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the Euronoise 2009 Congress (2009, October)

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See detailRaisonnement et délimitation du champ des connaissances au cours d’un curriculum PBL
Collard, Anne ULg; Gelaes, Sabine; Bourguignon, Jean-Pierre ULg

in Pédagogie Médicale (2009, October), 10 Suppl. 1

Contexte et Problématique : Depuis 2000, des séminaires d’Apprentissage Par Problèmes ont été introduits tout au long du curriculum médical (7 ans) à l’Université de Liège. Nous avons montré ... [more ▼]

Contexte et Problématique : Depuis 2000, des séminaires d’Apprentissage Par Problèmes ont été introduits tout au long du curriculum médical (7 ans) à l’Université de Liège. Nous avons montré antérieurement que la capacité de raisonnement est évidente dès la 3ième année du curriculum et augmente dans le décours de celui-ci, alors que les connaissances factuelles ont présenté un déclin assez rapide après la 3ième année. Lors des évaluations orales portant sur la discussion d’une vignette clinique avec un Collège d’enseignants, ceux-ci ont fait le constat suivant : l’étudiant, encouragé au raisonnement, privilégie parfois celui-ci en négligeant voire ignorant le rapport critique aux connaissances qui sous-tendent ce raisonnement. L’étudiant raisonne mais valide difficilement son raisonnement. Questions de recherche : 1) La délimitation du champ des connaissances peut-elle être estimée et comment varie-t-elle au cours du curriculum? 2) Est-elle en relation avec le raisonnement biomédical évalué par un TCS et cette relation varie-t-elle au cours du curriculum ? Méthodes : Un test de connaissances factuelles (un test vrai/faux avec degrés de certitude) ainsi qu’un test de raisonnement (un test de Concordance de Scripts, TCS) ont été administrés à 104 étudiants (année 3 à 6) et à un panel de référents. Le domaine choisi pour mener nos investigations était l’endocrinologie. Un indice de la capacité à délimiter le champ de ses propres connaissances a été calculé comme suit : la différence entre les degrés de certitude pour les réponses correctes et ceux pour les réponses incorrectes au test vrai/faux. Une différence positive élevée indiquerait une bonne capacité à délimiter le champ de ses connaissances alors qu’une différence négative indiquerait une mauvaise capacité de délimitation. Résultats : Pour chaque année d’étude, les degrés de certitude pour les réponses correctes étaient supérieurs à ceux pour les réponses incorrectes. La différence entre ceux-ci, soit l’indice de délimitation du champ des connaissances, ne variait pas en fonction de l’année d’étude. Par ailleurs, cet indice s’est avéré être positivement corrélé aux scores TCS pour les 4 années d’études. Conclusions : La capacité à délimiter le champ de ses propres connaissances semble être reliée à la capacité de raisonnement indépendamment de la progression dans le curriculum de formation médicale. [less ▲]

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See detailNumerical simulations of the sound propagation in non rectilinear streets
Billon, Alexis ULg; Picaut, Judicaël; Valeau, Vincent et al

Conference (2009, October)

At high frequencies, the sound propagation can be approximated by the propagation of sound particles which are reflected and absorbed at the boundaries. This propagation follows then a transport process ... [more ▼]

At high frequencies, the sound propagation can be approximated by the propagation of sound particles which are reflected and absorbed at the boundaries. This propagation follows then a transport process. In urban canyons, this transport process can be reduced to a diffusion process. The resultant model allows one to obtain the spatial distribution of the acoustical energy in a street in a few seconds using a classical finite elements program. This diffusion model has been previously validated in rectilinear streets for different geometrical and acoustical parameters. In this paper, more complex geometries such as varying cross-sections, bents and streets crossings are dealt with. As the diffusion model only models the reverberated sound field, diffraction effects on the direct sound field at streets corners are added. The obtained results are then compared to scale model experiments. [less ▲]

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See detailAspects chirurgicaux du Codex de Nicétas dans les affections articulaires
Marganne, Marie-Hélène ULg

in Rhumatologie Pratique (2009, October), 267(2), 37-40

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See detailComparaison de 5 techniques de prération du PRP (Platelet-Rich Plasma ou plasma)
Kaux, Jean-François ULg; Le Goff, Caroline ULg; Seidel, Laurence ULg et al

in Annales de Réadaptation et de Médecine Physique (2009, October), 52(Sup. 1), 109

Introduction : Depuis une vingtaine d’années, le développement des activités sportives s’accompagne d’une incidence accrue de diverses tendinopathies, souvent rebelles aux traitements conservateurs ... [more ▼]

Introduction : Depuis une vingtaine d’années, le développement des activités sportives s’accompagne d’une incidence accrue de diverses tendinopathies, souvent rebelles aux traitements conservateurs classiques (anti-inflammatoires non stéroïdiens, orthèses, kinésithérapie, infiltrations…). De nouvelles thérapeutiques, dont l’injection de concentrés plaquettaires (plasma riche en plaquettes ou PRP), sont actuellement en cours d’évaluation clinique. Objectifs : L’injection de PRP fait actuellement l’objet de recherche comme thérapeutique des tendinopathies chroniques. L’injection intra-tendineuse nécessite idéalement un volume minimal afin de diminuer la pression lors de l’injection et minimiser les douleurs, mais il doit également présenter une concentration plaquettaire élevée ; par ailleurs, la quantité de facteurs de croissance libérés pourrait être liée au système de préparation. Méthodes : Après avoir prélevés divers échantillons de sang veineux chez 5 patients, nous avons comparé 5 techniques de préparation du PRP : celle du Service d’Hématologie Biologique du CHU de Liège, le PRP Kit de Curasan®, les techniques Plateltex®, GPS®II et RegenLab®. Résultats : Les différentes techniques permettent d’obtenir des concentrations plaquettaires plus importantes que dans le sang avec des volumes variables (de 0,3 mL à 6 mL) et un nombre de globules rouges et globules blancs limité (sauf pour GPS® II). Le nombre de plaquettes/µL apparaît plus élevé avec la technique Plateltex® et obtient le plus petit volume à injecter. Les autres techniques permettent également d’obtenir de petits volumes sauf avec le GPS®II. Le nombre de plaquettes collectées dans le PRP apparaît donc plus élevé avec cette technique mais avec une concentration faible. Discussion – Conclusion : La technique décrite par Plateltex® permet de recueillir le PRP le plus concentré dans le volume le plus faible. [less ▲]

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See detailEvaluation of the suitability of the land surface model JULES for climate impact studies in Belgian ecosystem
Van Den Hoof, Catherine; Aubinet, Marc ULg; Heinesch, Bernard ULg et al

Conference (2009, October)

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See detailLock Gates - Innovative concepts
Rigo, Philippe ULg; Herbillon, Vincent ULg; Thiry, Arnaud ULg

in PIANC Workshop 'INNOVATIONS IN NAVIGATION LOCK DESIGN' (2009, October)

This paper introduces some new innovative concepts identifies by the INCOM WG29 and reported in the PIANC report 106 “Innovations in Navigation Lock Design”, 2009.The paper focusses on innovation in LOCK ... [more ▼]

This paper introduces some new innovative concepts identifies by the INCOM WG29 and reported in the PIANC report 106 “Innovations in Navigation Lock Design”, 2009.The paper focusses on innovation in LOCK GATES [less ▲]

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See detailSound Field Modeling in Architectural Acoustics using a Diffusion Equation Based Model
Fortin, Nicolas; Picaut, Judicaël; Billon, Alexis ULg et al

Conference (2009, October)

In this paper, an implementation of a model for room-acoustic predictions in COMSOL Multiphysics is presented. The model (called diffusion model) is based on the solving of diffusion equations instead of ... [more ▼]

In this paper, an implementation of a model for room-acoustic predictions in COMSOL Multiphysics is presented. The model (called diffusion model) is based on the solving of diffusion equations instead of classical wave equations and allows simulating the sound propagation in complex geometries at high frequency. Instead of using COMSOL Multiplysics to solve directly the problem, a specific tool has been developed. It is composed of a user-friendly interface (I-Simpa) which manipulates all the physical data of the problem (geometries, acoustic properties and elements…) and generates an interoperability script to execute COMSOL Multiplysics via the generation of .m file scripts. Then, numerical results are processed by I-Simpa for the acoustic post-treatment and results display, like sound levels, reverberation times… [less ▲]

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See detailPrediction of genetic interactions in yeast using machine learning
Schrynemackers, Marie ULg

Poster (2009, October)

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See detailMicrofossil evidence for +21 m eustatic sea level during marine isotope stage 11
van Hengstum, P. J.; Scott, Dave; Javaux, Emmanuelle ULg

Conference (2009, October)

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See detailLock gates - Part B: Ship impact
Rigo, Philippe ULg; Gernay, Thomas ULg

in PIANC International Workshop, 15-16 October 2009, Edt. Ph Rigo, PIANC, Brussels (2009, October)

This paper presents an overview of the state of art of ship impact analysis on lock gates. First, the different kinds of analysis are presented, which are: empirical approach, analytical-rational approach ... [more ▼]

This paper presents an overview of the state of art of ship impact analysis on lock gates. First, the different kinds of analysis are presented, which are: empirical approach, analytical-rational approach, and finite element methods performed with quasi-static analysis or dynamic analysis. A discussion on the hypothesis and the calculus time required by each method is carried out with a view to clarify the state-of-practice for engineers. Then, a quasi-static analysis by finite elements modeling a ship impact is performed on the specific case of a new lock gate designed in Belgium for the “Seine-Escaut Est” project. The results suggest some design recommendations to provide a ductile behavior and so impact strength for the gate structure. [less ▲]

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See detailApports de la luminescence à la chronologie de la basilique Saint-Seurin de Bordeaux
Bouvier, Armel; Guibert, Pierre; Sapin, Christian ULg et al

Conference (2009, October)

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See detailOptimization of dynamic embedded, Water based surface heat (and cold) emitting system for buildings.
Thomas, Sébastien ULg; Franck, Pierre-Yves ULg; Andre, Philippe ULg

Conference (2009, October)

This paper presents the heat flow model and the experimental test bench developed to optimize a new kind of heating floor. In the first part of the text is described the new kind of high reactivity ... [more ▼]

This paper presents the heat flow model and the experimental test bench developed to optimize a new kind of heating floor. In the first part of the text is described the new kind of high reactivity emitting device for building heating and cooling. A second part illustrates the numerical model developed to evaluate the device efficiency. Finally experimental test bench implementation and results are presented. Both computational and experimental results support the use of colder water in comparison to other heating devices. This implies energy savings for building heating. [less ▲]

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See detailImproved Forwarding Architecture and Resource Management for Multi-Core Software Routers
Egi, Norbert; Greenhalgh, Adam; Handley, Mark et al

in NPC 2009 Proceedings (2009, October)

Recent technological advances in commodity server architectures, with multiple multi-core CPUs, integrated memory controllers, high-speed interconnects and enhanced network interface cards, provide ... [more ▼]

Recent technological advances in commodity server architectures, with multiple multi-core CPUs, integrated memory controllers, high-speed interconnects and enhanced network interface cards, provide substantial computational capacity and thus an attractive platform for packet forwarding. However, to exploit this available capacity, we need a suitable software platform that allows effective parallel packet processing and resource management. In this paper, we at first introduce an improved forwarding architecture for software routers that enhances parallelism by exploiting hardware classification and multi-queue support, already available in recent commodity network interface cards. After evaluating the original scheduling algorithm of the widely-used Click modular router, we propose solutions for extending this scheduler for improved fairness, throughput and more precise resource management. To illustrate the potential benefits of our proposal, we implement and evaluate a few key elements of our overall design. [less ▲]

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See detailCommutation de paquets logicielle sur routeurs PC multi-coeurs
Egi, Norbert; Greenhalgh, Adam; Handley, Mark et al

in Actes de CFIP 2009 (2009, October)

Les processeurs multi-coeurs sur PC, en même temps que les progrès récents sur la performance de la mémoire et des bus, suggèrent un candidat idéal pour la construction d’architectures de routeurs ... [more ▼]

Les processeurs multi-coeurs sur PC, en même temps que les progrès récents sur la performance de la mémoire et des bus, suggèrent un candidat idéal pour la construction d’architectures de routeurs purement logicielles qui soient flexibles et en même temps performantes. Dans cet article, nous présentons une architecture de commutation de paquets pour les routeurs logiciels ou virtuels dont l’objectif principal est de prévenir des accès mémoire coûteux tout en utilisant les ressources CPU disponibles au mieux pour traiter et commuter les paquets. Nous présentons premièrement le principe d’arbre de commutation dont la fonction est de garder les paquets commutés dans la même hiérarchie de cache du processeur. Nous identifions ensuite la source de contention principale des performances de commutation comme l’accès concurrent aux interfaces de sorties puis analysons les gains potentiels de performance en utilisant un verrou sur les interfaces de sortie ainsi qu’un mécanisme de retour sur l’état des queues du routeur. Finalement, nous proposons et évaluons une modification des arbres de commutation qui permet de contourner la contention due au partage des interfaces de sortie par les arbres [less ▲]

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See detailThe clinical and economic burden of nonadherence with osteoporosis medications
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Bruyère, Olivier ULg et al

in Value in Health (2009, October), 12(7), 444

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See detailVariations in sound production in <i>Dascyllus flavicaudus<i>
Kever, Loïc ULg; Lecchini, David; Parmentier, Eric ULg

Poster (2009, October)

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See detailA three-year on Anaplasma phagocytophilum in wild cervids populations in Southern Belgium.
Nahayo, A; Heyman, P; Cochez, C et al

Conference (2009, October)

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See detailAccurate measurement of arterial input function during FDG PET using a beta microprobe
Warnock, Geoffrey ULg; Lemaire, Christian ULg; Langlois, Xavier et al

in Journal of Cerebral Blood Flow & Metabolism (2009, October), 29(S1), 339-339

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See detailIntroduction to the PIANC Report 106 on Locks - Innovations In Navigation Lock Design.
Rigo, Philippe ULg

in PIANC WORKSHOP on Locks - Innovations In Navigation Lock Design, Brussels, Oct 2009 (2009, October)

First paper of the workshop - General presentation of the PIANC report N° 106 on Locks

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See detailIonosphere Modelling Based on the NeQuick Model and GNSS Data Ingestion
Bidaine, Benoît ULg; Warnant, René ULg

in Second International Colloquium - Scientific and Fundamental Aspects of the Galileo Programme (2009, October)

As for other GNSS, the ionospheric effect remains one of the main factors limiting Galileo accuracy. For single frequency users, this contribution to the error budget will be mitigated by a global ... [more ▼]

As for other GNSS, the ionospheric effect remains one of the main factors limiting Galileo accuracy. For single frequency users, this contribution to the error budget will be mitigated by a global algorithm based on the NeQuick model. This quick-run empirical model provides flexible solutions for combining ionospheric information obtained from various systems, from GNSS to ionosondes and topside sounders thanks to which NeQuick has been designed. Hence it constitutes an interesting simulation tool not only serving Galileo needs for mitigation of the ionospheric effect but also widening the use of new data available thanks to the future European system. NeQuick provides the electron density as a function of location, time and solar activity. Thanks to numerical integration, the total content in free electrons of the ionosphere (Total Electron Content, TEC) can be deduced as well as the ionospheric propagation delay depending linearly on TEC on satellite-to-receiver path. The model is particularly suited to be used within an optimization procedure called ingestion. In this framework, an “effective ionization level” Az plays the role of the solar activity input in order to fit a specific dataset. For Galileo single frequency operation, daily Az values will be computed from slant TEC measurements performed within the ground segment. In this study, we perform slant TEC ingestion for a dozen of locations around the world where both an ionosonde and a GPS receiver are installed. These collocated instruments allow us to compare measured and modelled vertical TEC in different ways showing for example global statistics or dependence towards latitude. We analyze such results for the year 2002 (high solar activity level) giving an interesting insight in the situation we could observe when Galileo reach its Full Operation Capability, during the next solar maximum. [less ▲]

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See detailÉmissions gazeuses liées au séchage convectif de boues de station d’épuration
Fraikin, Laurent ULg; Herbreteau, Benjamin; Nicol, François et al

in SFGP (Ed.) Récents Progrès en Génie des Procédés - N°98 - A la croisée des sciences et des cultures pour relever les défis industriels du XXIème siècle - Actes du 12ème Congrès de la Société Française de Génie des Procédés, Marseille, France, 14-16 octobre 2009 (2009, October)

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See detailRoll forming of Ultra High Strength Steels: progresses in experimental and modelling knowledge
Depauw, Antoine; Hérisson, Damien; Boman, Romain ULg et al

in Proceedings of International Roll Forming Congress 2009 (2009, October)

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See detailImplementation of new Fast-GC-MS and UHPLC-MS/MS data in a conventional GC-MS database for heroin profiling
Debrus, Benjamin ULg; Broséus, Julian; Guillarme, Davy et al

Conference (2009, October)

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See detailInfluence d’images évocatrices et distractrices sur une tâche de jugement en acoustique des salles
Defays, Aurore ULg; Safin, Stéphane ULg; Billon, Alexis ULg et al

in Proceedings IHM'09 (2009, October)

Dans le cadre de la conception d’un espace immersif multimodal visant à soutenir la tâche d’évaluation de la qualité acoustique de salles sur base de simulations numériques, nous nous intéressons aux ... [more ▼]

Dans le cadre de la conception d’un espace immersif multimodal visant à soutenir la tâche d’évaluation de la qualité acoustique de salles sur base de simulations numériques, nous nous intéressons aux liens entre l’image et le son. 54 sujets ont été confrontés à une tâche de jugement du degré de réverbération d’un extrait sonore dans une situation contrôle (sans image) puis dans une situation expérimentale avec, pour la moitié des sujets, une image visant à soutenir le jugement (cohérente avec le son) et, pour l’autre moitié, une image « distractrice ». Nos résultats montrent une influence positive des images évocatrices et pas d’effet des images distractrice. [less ▲]

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See detailExpected Design Space: a Bayesian perspective based on modelling, prediction and multi-criteria decision method
Lebrun, Pierre ULg; Boulanger, Bruno ULg

Conference (2009, October)

The Design Space (DS) is defined as the set of factors settings (input conditions) that provides results at least better than pre-defined acceptance limits. The proposed methodology aims at identifying a ... [more ▼]

The Design Space (DS) is defined as the set of factors settings (input conditions) that provides results at least better than pre-defined acceptance limits. The proposed methodology aims at identifying a region in the space of factors that will likely provide satisfactory results during the future use of an analytical method or process in routine, through an optimization process. First, in a Bayesian framework, DS is derived from the joint predictive posterior distribution of the responses in a multivariate multiple regression problem using non-informative as well as informative prior distribution of the parameters. The case of DS in presence of highly correlated responses will be covered. Second, a multi-criteria decision is taken with respect to the pre-defined acceptance limits, aiming to identify the DS of any analytical methods or other processes. A strong link is made between acceptance limits and objective functions to optimize, using desirability functions and index. Examples based on high-performance liquid chromatography (HPLC) methods will be given, illustrating the applicability of the methodology with highly correlated and constrained responses. [less ▲]

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See detailPrevalence of Chronic Kidney Disease in an Elderly Population: Impact of the Choice of the Equation Used for Estimating GFR
Mariat, Christophe; Cavalier, Etienne ULg; Maillard, Nicolas et al

Poster (2009, October)

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See detailSome issues related to unstructured mesh generation
Compère, G.; Remacle, J.-F.; Marchandise, E. et al

in Proceedings of Current and New Trends in Scientific Computing, CMM-DIM 2009 (2009, October)

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See detailFiscalité des subsides et primes. Certificats Kyoto
Richelle, Isabelle ULg

Conference (2009, October)

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See detailStationary Roll Forming Simulation using Arbitrary Lagrangian Eulerian Formalism
Boman, Romain ULg; Depauw, Antoine; Hérisson, Damien et al

in Proceedings of International Roll Forming Congress 2009 (2009, October)

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See detailEndoscopie à l'effort : les examens sur piste et sur tapis roulant sont-ils équivalents ?
Van Erck, Emmanuelle ULg; Frippiat, Thibault ULg; Dupuis, Marie-Capucine ULg et al

in Proceedings des Journées annuelles de l’Association vétérinaire équine française (2009) (2009, October)

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See detailDISPLACEMENT OF 18F-FALLYPRIDE BINDING WITH HALOPERIDOL IN A WITHIN-SUBJECT DESIGN USING A BETA MICROPROBE
Warnock, Geoffrey ULg; Goblet, David ULg; Lemaire, Christian ULg et al

in Journal of Cerebral Blood Flow & Metabolism (2009, October), 29(S1), 352-353

Detailed reference viewed: 44 (14 ULg)
See detailL'évaluation de la proprioception
Demoulin, Christophe ULg

in Livre des résumés du 1er Congrès de la Société Scientifique de Kinésithérapie : "Les outils d'évaluation Peut-on encore les ignorer ?" (2009, October)

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See detailAmphibia-Reptilia: Editorial report 2008-2009
Denoël, Mathieu ULg

Conference (2009, September 30)

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See detailPopulation displacements in a 4°C+ world
Gemenne, François ULg

Conference (2009, September 29)

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See detailTetrazolium testing in Allium genus
Rodriguez Quilon, Isabel; Adam, Gilles ULg; Duran, José María

Poster (2009, September 29)

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See detailTHERMO-HYDRO-MECHANICAL MODELLING OF HOLLOW CYLINDER LABORATORY EXPERIMENTS ON BOOM CLAY
Dizier, Arnaud ULg; Collin, Frédéric ULg; Garitte, Benoit et al

in EC-TIMODAZ-THERESA THMC conference, 29 Sep. – 01 Oct. 2009 (2009, September 29)

The aim of the TIMODAZ project is to investigate the effect of thermal changes on the excavation damaged zone (EDZ) around nuclear deep disposals in clay-based geological formations. In the framework of ... [more ▼]

The aim of the TIMODAZ project is to investigate the effect of thermal changes on the excavation damaged zone (EDZ) around nuclear deep disposals in clay-based geological formations. In the framework of WP5.2 of this project, it is intended to develop constitutive models and numerical tools reproducing the thermo-hydro-mechanical (THM) evolution of the host rocks at real time and repository scale. Predictive THM modelling of on-going laboratory experiments has been realised by several partners of the project to compare different finite element codes and to provide a first insight into the THM responses of the tested materials. The experiment consists of a hollow cylinder of clayey material, which is subjected to THM loadings. The modelling of this experiment is realised with different constitutive laws (thermo-elasticity, elastic-perfectly plastic laws, hardening plasticity and/or thermo-plasticity). Results show that the choice of the THM model is a key issue for the prediction of the process implied in this modelling. For the current objective of this work, the assumption of isotropy was found to be fair enough. However, preliminary experimental results got in WP3 of the present project point out a certain mechanical anisotropy of the tested clay. Consequently, further development of constitutive laws considering mechanical anisotropy will probably be necessary in the future. [less ▲]

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See detailLiposomes loaded with diglyceride ester of methotrexate and mephalan: sutdies on stability and hemocompatibilit
Kuznetsova, N; Sevrin, Chantal ULg; Lespineux, David et al

Poster (2009, September 28)

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See detailMémoire épisodique et métamémoire dans la variante comportementale de la démence fronto-temporale
Feyers, Dorothée ULg; Bastin, Christine ULg; Collette, Fabienne ULg et al

Conference (2009, September 28)

Impaired memory performance does not constitute the prominent deficit in frontotemporal dementia (FTD). Nevertheless, it has been suggested that some specific aspects of memory may be disrupted in FTD ... [more ▼]

Impaired memory performance does not constitute the prominent deficit in frontotemporal dementia (FTD). Nevertheless, it has been suggested that some specific aspects of memory may be disrupted in FTD patients, in particular, the ability to consciously recollect the context in which information has been learned (Simons et al., 2002). The aims of the current study was to investigate the states of awareness accompanying recognition memory by asking participants to make Remember/Know/Guess judgments. Concretely, 12 FDT patients and 12 matched healthy participants studied 20 word pairs. During cued recall, each trial consisted of one word from a pair and participants had to try to recall the associated word. Finally, a 5-alternative forced-choice recognition task was given and participants had to say whether they chose a word because they recollected the study context (Remember), they knew they saw the word, without recalling anything else (Know) or they guessed (Guess). Results from the cued recall and recognition parts indicated that FTD recalled less word pairs than the controls, but had similar levels of recognition performance. Nevertheless, FTD patients gave less Remember responses than the controls, and tended to give more Guess responses. To conclude, episodic memory performance in FTD was characterised by impaired self-initiated memory retrieval processes. Although global recognition memory performance was preserved, FTD patients’ memories lacked of autonoetic consciousness and were mainly based on familiarity judgments and guessing. This pattern of results is similar to that found in patients with focal frontal lobe lesions (e.g., Wheeler et al., 1995; Wheeler & Stuss, 2003) and is consistent with the idea that the memory dysfunctions observed in FTD may stem from damage to the prefrontal cortex. [less ▲]

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See detailActivation of the complement by PLGA nanoparticles.
Cerda, B; Sevrin, Chantal ULg; Patronidou, C et al

Poster (2009, September 28)

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See detailNano-sized drug carriers and their interactions with biomimetic model membranes
Frost, R; Cerda, B; Grandfils, Christian ULg et al

Poster (2009, September 28)

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See detailProteomic characterization of a Chlamydomonas reinhardtii mutant lacking the mitochondrial alternative oxidase
Mathy, Grégory ULg

Conference (2009, September 27)

Conférence réalisée sur la carractérisation d'un mutant AOX- chez l'algue unicellulaire Chlamydomonas reinhardtii

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See detailSur les traces des lieux de culte isiaques du Péloponnèse
Veymiers, Richard ULg

Conference (2009, September 25)

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See detailDroplet internal flow measurement using micro-PIV
Lebeau, Frédéric ULg; Vetrano, Maria-Rosaria; van Beeck, Jeroen et al

Poster (2009, September 25)

The micro-PIV technique represents a development of the general particle image velocimetry technique to applications in fluid mechanics phenomena at a micrometric scale. It takes advantage from the very ... [more ▼]

The micro-PIV technique represents a development of the general particle image velocimetry technique to applications in fluid mechanics phenomena at a micrometric scale. It takes advantage from the very small depth of field of long distance objectives with high magnification to carry out accurate measurements in the focusing plane. The typical configuration consists of a microscope coupled to a pulsated laser and a double exposure PIV camera. The flow is seeded using sub-micrometric fluorescent particles. The laser light is directed on the investigated flow through the epifluorescent microscope objective. The light re-emitted by the fluorescent particles is detected by the PIV camera equipped of an optical filter to select only the fluorescence wavelength. The micro-PIV technique presents a large interest in the validation of numerical codes developed in different micro-fluidic framework such as biological flows and in industrial application as the ink-jet print-head. To investigate the micro-PIV measurements capabilities for fast moving and deforming droplets, measurement of the flow inside a jet ejected by a piezo-driven capillary up to the droplet formation by Rayleigh instability are studied in combination with PTV in order to distinguish the main liquid movement from the bulk one. Liquids differing from each other for their viscosity and their surface tension as well as piezo-element frequency in the 1 to 8 KHz range are investigated. The flow rate of the jet is adjusted by means of a pushing syringe system. Low concentration of 0.86 microns fluorescent particles is employed as seeding in order to have good signal to noise ratios. The ensemble averaging method is used to increase the height of the correlation peaks. Stroboscopic method is used to achieve several couples of frames taken in the same conditions thanks to high repeatability of piezo-driven instabilities. Moreover changing the delay of stroboscopy all the droplet formation phases can be analyzed in detail. In the experimental configuration, optical aberrations play a role since they affect the position and shape of the particle images and as a consequence the velocity field. The two main optical aberration experienced are astigmatism and measurement plane deformation. Astigmatism cannot be avoided in the experimental configuration, as it is clearly observed on droplet images were particles above and bellow the focalisation plane appear as perpendicular lines (Fig 1a). Nevertheless cross correlation method is not sensitive on particle image shape. As the measurement plane defined by the focal plane of the microscope is located inside a curved transparent object, it deformed as it was passing through a lens. The deformation of the objective plane affects the measurements as a function of the optical configuration, droplet curvature and relative refractive index. However, in the studied configuration, deformed plane differs only from the straight one of about 8 µm. The micro-PIV method is therefore suited to measure the instantaneous vector field inside droplets through cross-correlation methods (Fig 1b). The internal flow recirculation is observed. Measurements can be also performed in different planes inside the droplet depending on focalisation plane. [less ▲]

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See detailLes technologies textiles : outils de la médecine régénérative
Grandfils, Christian ULg

Conference (2009, September 25)

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See detailThe Paradoxes of Grace: New Impingements on Australian Literary Territory
Delrez, Marc ULg

Conference (2009, September 24)

The title of Robert Drewe’s latest novel, Grace (2005), shares with J. M. Coetzee’s antonymous Disgrace (1999) a polysemous quality which derives from both works’ attempt to capture the ethical stance of ... [more ▼]

The title of Robert Drewe’s latest novel, Grace (2005), shares with J. M. Coetzee’s antonymous Disgrace (1999) a polysemous quality which derives from both works’ attempt to capture the ethical stance of a society in a way which has personal and political ramifications at the same time. The Australian text shows some concern with the predicament of a boatload of asylum seekers from Indonesia, who later escape from their detention centre in the Kimberleys; but Drewe’s progressive denunciation of Australia’s treatment of refugees is potentially compromised by the Australian anxiety over territorial integrity which provides an unshakeable context for this kind of thematic development. More generally, my paper will explore the ambiguities attending a discursive move which seeks to absorb race into larger categories of political meaning, and the related difficulty of achieving the ‘grace’ of complete freedom from colonialist parameters in an Australian culture where some suspense over territory continues to brood. [less ▲]

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See detailEnvironmental and genetic sources of variability of stearoyl Coenzyme-A desaturase 9 activity during and across lactations
Arnould, Valérie ULg; Gengler, Nicolas ULg; Soyeurt, Hélène ULg

Conference (2009, September 23)

Milk fatty acid (FA) profile is far from the optimal fat composition in regards to human health. Different natural sources of variation such as feeding or genetics could be used to modify the contents of ... [more ▼]

Milk fatty acid (FA) profile is far from the optimal fat composition in regards to human health. Different natural sources of variation such as feeding or genetics could be used to modify the contents of unsaturated fatty acids. The impact of feeding is well described; however, genetics effects on the milk FA composition are not well studied. Increasing the unsaturated fatty acids contents of bovine milk could have the potential to raise the nutritive and therapeutic values of dairy products. The stearoyl Coenzyme-A desaturase 9 (delta-9) gene was identified as a potential functional candidate gene affecting milk fat composition in dairy cattle. The objective of this research was to study the genetic variability on this enzyme activity across lactations. A total of 199,977 test-day records were obtained from 29,603 Holstein cows in first lactation, 154,267 records from 23,453 Holstein cows in second lactation, and 173,244 records from 75,887 Holstein cows in third and later lactations. The used model was a multiple-trait random regressions test-day model. Fixed effects were: herd x date of test, and class of age. Random effects were: herd x year of calving, permanent environmental, additive genetic, and residual effects. The studied traits were milk yield, protein content, percentage of fat, monounsaturated fatty acids estimated by mid-infrared spectrometry, and the ratios reflecting the delta-9 activity. Obtained heritability estimates of delta-9 as well as the genetic and phenotypic correlations varied across lactations. These results suggest potential improvements of milk fat composition based on delta-9 activity using animal selection and appropriate management practices. [less ▲]

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See detailSustainable dairy farming - A case study of Holsteins in a developed and an emerging country
Hammami, Hedi ULg; Rekik, Boulbaba; Bormann, Jeanne et al

Conference (2009, September 23)

Sustainability of breeding programs under the flow of exchange among various environments are conditioned by the ability of genotypes to adjust sufficiently their phenotypes in response to changes in ... [more ▼]

Sustainability of breeding programs under the flow of exchange among various environments are conditioned by the ability of genotypes to adjust sufficiently their phenotypes in response to changes in their new bio-physical conditions, and also by the capabilities of farmers to balance between environmental, ethical, social. and economic aspects. The objective of this paper was to quantify the effectiveness of genetic responses from indirect selection in high- and low- to medium- input systems using Luxembourg and Tunisian Hoisteins. The magnitude of genotype-by-environment interaction (GxE) for production traits was firstly investigated based on the country border delimitation as environmental character state. Secondly, three herd management levels reflecting feeding and management intensity were identified in each country and GxE was investigated within and across country environments. Significant GxE was detected for milk yield and persistency with large differences in genetic and permanent environmental variances between the 2 countries. Genetic correlations for 305-d milk yield and persistency between Luxembourg and Tunisia were 0.60 and 0.36. Low rank correlations obtained between estimated breeding values of common sires translated a significant re-ranking between the 2 countries. Within-country environments analysis show that the magnitude of GxE varied from only scaling effects resulting from heterogeneous variances in high-input systems to considerable re-ranking of common sires under limited feeding resources, low management care, and stressful conditions in low-input systems. Overall, this study shows that substantial differences exist between Hoisteins in terms of their sensitivity to production environ ment suspecting the sustainability of the dairying system. In high-input systems, GxE effects are expected to be easily managed but harmful effects of intensive dairy systems should be considered. Selection of breeds under less intensive production systems respecting the ruminant's specificities should be encouraged. In law-input systems, selection for adaptive traits under their specifie conditions and improvement of management conditions and husbandry practices are needed. [less ▲]

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See detailThe fragile histidine triad gene regulates epithelial-mesenchymal transition associated with invasion of lung tumor cells.
Joannes, A; Bonnomet, Arnaud; Polette, Myriam et al

Poster (2009, September 23)

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See detailSteps to implement animal breeding for improved nutritional quality of bovine milk
Gengler, Nicolas ULg; Soyeurt, Hélène ULg

Conference (2009, September 23)

Animal improvement is always directed towards a given selection objective. These objectives in dairy cattle have been changing in the last forty years passing from simple yield only potentially associated ... [more ▼]

Animal improvement is always directed towards a given selection objective. These objectives in dairy cattle have been changing in the last forty years passing from simple yield only potentially associated with type, towards more complex ones including also functional traits as fertility and longevity. Milk composition has been selected too in most countries, however focussing only on major components, fat and protein. During the last years interest in milk quality traits, especially nutritionally quality has been increasing. Implementing breeding for additional traits first requires that animals can be evaluated for them because data is available and they are heritable enough. The objective of our research was to develop the needed steps to implement animal breeding for improved nutritional quality. Until recently data for fatty acid (FA) composition could not be obtained easily. However calibration equations for mid-infrared (MIR) spectrometry data generated in routine milk analysis done during milk recording were developed. They are used in routine in Belgium (Walloon Region) and Luxembourg and generate MIR data used to predict FA for up to 100.000 cows for every test date, therefore up to a maximum of 1 million test-day records. Multivariate test-day models were developed that allow estimating genetic parameters and ultimately breeding values as soon as enough data is available. Daily heritabilities estimated ranged between 0.1 and 0.4 showing that sufficient genetic differences exist. Because of the lack of historical data correlated traits as milk yield, fat and protein content will be analyse together with FA. For the future research on correlations between FA and other economically important traits will be done. Results are needed to integrate FA in the selection objectives. Because of the relative lack of historical data there is a high interest to research using genomic information to provide combined breeding values. [less ▲]

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