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See detailA Continuum Damage Mechanics Model for the Analysis of the Crashworthiness of Composite Structures: A work in progress
Chiu, Louis N S; Falzon, Brian G; Boman, Romain ULg

in Proceedings of the 15th Australian Aeronautical Conference (2013, February)

The crashworthiness capability of an aircraft structure is dependent on its ability to attenuate crash loading via the controlled deformation of energy absorbing devices. An energy-based constitutive ... [more ▼]

The crashworthiness capability of an aircraft structure is dependent on its ability to attenuate crash loading via the controlled deformation of energy absorbing devices. An energy-based constitutive relation was employed to model the behaviour of carbon fibre reinforced epoxy resin composite material under crush loading. Each of the damage modes in the fibre and matrix was treated separately with its own damage initiation and progression relationships as well as a damage parameter that tracks damage progression. Each damage parameter dictates the reduction in stiffness in the respective principal loading directions. This model was implemented for a 3D solid brick element in contrast to shell-based formulations currently available. Crushing composite structures were modelled and the results validated against experimental data. The force-displacement response / specific energy absorption and the failure modes obtained from the simulation show that the underlying physics of the crushing have been captured by the proposed model but that further work is required for reliable quantitative correlation. [less ▲]

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See detailPhysical and numerical modelling in low-head structures design
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Rulot, François ULg et al

in Bung, Daniel; Pagliara, Stefano (Eds.) Proceedings of the International Workshop on Hydraulic Design of Low-Head Structures (2013, February)

Physical and numerical modelling may be combined within so-called composite or hybrid modelling. This enables to optimally take benefit of the respective strengths of each modelling approach, while ... [more ▼]

Physical and numerical modelling may be combined within so-called composite or hybrid modelling. This enables to optimally take benefit of the respective strengths of each modelling approach, while compensating for their specific drawbacks. Different types of composite modelling may be identified, such as embedding a detailed physical model within a broader scale numerical model, interconnecting different physical and numerical models focusing each on specific processes, or validating a numerical model from experimental data before exploiting the numerical model to generate more results than availa-ble from the experimental facility. Besides, specifically in more basic research, composite modelling may also be used to improve in-depth understanding of the relative importance of different processes which act simultaneously in the experimental test and may be artificially separated in numerical simulations. [less ▲]

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See detailEtude de la variabilité des aptitudes à la transformation laitière en Région wallonne basée sur l'utilisation de la spectrométrie infrarouge
Colinet, Frédéric ULg; Troch, Thibault ULg; Vanden Bossche, S. et al

in 18ième Carrefour des Productions animales : Nouvelles approches pour une optimisation de nos élevages laitiers (2013, February)

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See detailChronische. Bronchitis Hund
Clercx, Cécile ULg

in Proceedings of the 34. Internationaler Fortbildungskurs Kleintierkrankheiten : “Thorax – Herz- und Lungenerkrankungen" - Flims -Switzerland (2013, February)

See detailEosinophile Bronchopneumonie
Clercx, Cécile ULg

in Proceedings of the 34. Internationaler Fortbildungskurs Kleintierkrankheiten : “Thorax – Herz- und Lungenerkrankungen" - Flims -Switzerland (2013, February)

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See detailL'intérêt des races mixtes dans les systèmes laitiers : enseignements du projet BlueSel
Muchembled, A.; Beguin, E.; Glorieux, G. et al

in 18ième Carrefour des Productions animales : Nouvelles approches pour une optimisation de nos élevages laitiers (2013, February)

La « Bleue Mixte » (BM) est une race à petit effectif localisée de part et d’autre de la frontière franco-belge. Menacée de disparition, elle bénéficie d’un projet transfrontalier BlueSel soutenu par le ... [more ▼]

La « Bleue Mixte » (BM) est une race à petit effectif localisée de part et d’autre de la frontière franco-belge. Menacée de disparition, elle bénéficie d’un projet transfrontalier BlueSel soutenu par le programme européen INTERREG IV et les autorités françaises et wallonnes. L’objectif de ce projet est d’assurer la conservation, la sélection et la promotion de la BM. L’un des volets du programme a consisté à étudier la rentabilité économique des troupeaux BM. Il s’est appuyé sur un réseau de 16 fermes de références mis en place fin 2008 jusque mi 2012. La collecte des données techniques et économiques sur les 4 années comptables de 2007 à 2010 a reposé sur la méthodologie mise en oeuvre au sein du dispositif français des Réseaux d’élevage. Les exploitations BM ont été regroupées selon deux systèmes, herbivore et polyculture-élevage, et comparées aux exploitations laitières Prim’Holstein (PH) du Réseau d’élevage de Nord-Picardie. Les résultats démontrent la capacité des éleveurs de vaches BM à obtenir de bonnes performances économiques malgré de plus faibles productivité laitière (4225 l/VL) et taux (3,70 % de MG et 3,22 % de protéines), et un moindre prix du lait, grâce notamment à une conduite de troupeaux bien maîtrisée, des surfaces fourragères très bien valorisées, et la mixité lait-viande très affirmée de la race qui atténue les fluctuations du prix du lait. En système herbivore, les exploitations BM s’avèrent économes et autonomes avec une excellente valorisation des prairies. En système de polyculture-élevage, les troupeaux sont conduits de façon à peine plus intensive qu’en système herbivore, contrairement aux troupeaux PH. [less ▲]

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See detailNutritional requirements for premature infants
SENTERRE, Thibault ULg

in 8th International Neonatal Conference (2013, February)

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See detailSur la voie de l’élevage laitier de précision en Wallonie - 2. ValLait, OptiVal et OptiVal+ : valoriser des données du contrôle des performances
Bastin, Catherine ULg; Gillon, A.; Massart, X. et al

in 18ème Carrefour des Productions agricoles: Nouvelles approches pour une optimisation de nos élevages laitiers (2013, February)

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See detailLa transition des territoires périurbains vers un modèle plus durable : perspectives pour le renouvellement périurbain.
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) 1er Congrès interdisciplinaire du Développement Durable : Quelle transition pour nos sociétés ? Thème 3 : Logement et Aménagement du territoire. Recueil. (2013, February)

L’article aborde la question du recyclage des quartiers périurbains existants sous l'angle énergétique. Deux leviers d’actions sont mobilisés à cet effet : la forme urbaine, qui est étudiée en ... [more ▼]

L’article aborde la question du recyclage des quartiers périurbains existants sous l'angle énergétique. Deux leviers d’actions sont mobilisés à cet effet : la forme urbaine, qui est étudiée en complémentarité de l’échelle du bâtiment individuel, et la mobilité, car l’étalement urbain est entretenu et favorisé, en grande partie par la dépendance à la voiture individuelle. Deux indicateurs principaux (les besoins de chauffage de différents types de formes périurbaines et un indice de performance des déplacements) sont développés et discutés pour mettre en évidence les scénarios de renouvellement les plus adaptés et répondre à deux questions : « comment intervenir dans les quartiers périurbains existants ? » et « où intervenir ? ». Des pistes concrètes visant à l’opérationnalisation d’un « renouvellement périurbain » plus durable sont ensuite proposées. [less ▲]

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See detailAutomated platform for the quality control of PET-CT scanners following AFCN/FANC recommendations
Bernard, Claire ULg; Paulus, Cyril; JODOGNE, Sébastien ULg et al

in Proceedings of the Belgian Hospital Physicists Association Symposium (2013, February)

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See detail7. Lutte intégrée contre les ravageurs
Chavalle, Sandrine; Censier, Florence ULg; De Proft, Michel

in Destain, Jean-Pierre; Bodson, Bernard (Eds.) Livre Blanc Céréales (2013, February)

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See detailBakterielle und virale Pneumonien
Clercx, Cécile ULg

in Proceedings of the 34. Internationaler Fortbildungskurs Kleintierkrankheiten : “Thorax – Herz- und Lungenerkrankungen" - Flims -Switzerland (2013, February)

See detailA nap to recap: Reward strengthens relational memory during daytime sleep
Igloi, Kinga; Gaggioni, Giulia ULg; Eryilmaz, Hamdi et al

in Abstract book of the NCCR Annual Research Forum (2013, February)

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See detailOrthanc - Lightweight, scriptable DICOM server for image management in radiotherapy departments
JODOGNE, Sébastien ULg; Sobczak, Sonia; DEVILLERS, Magali ULg et al

in Proceedings of the Belgian Hospital Physicists Association Symposium (2013, February)

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See detailRobustness of steel building structures following a column loss
Huvelle, Clara ULg; Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg

in IABSE Workshop Helsinki 2013 "Safety, Failures and Robustness of Large Structures" Report (2013, February)

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See detailLungenfibrose
Clercx, Cécile ULg

in Proceedings of the 34. Internationaler Fortbildungskurs Kleintierkrankheiten : “Thorax – Herz- und Lungenerkrankungen" - Flims -Switzerland (2013, February)

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See detailCan changes in nutritional practice alter necrotizing enterocolitis ?
SENTERRE, Thibault ULg

in 8th International Neonatal Conference (2013, February)

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See detailNouveaux modes d’action publique en faveur de la transition des quartiers urbains vers un développement durable.
Ruelle, Christine ULg; Stangherlin, Gregor; Teller, Jacques ULg

in Van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) 1er Congrès Interdisciplinaire du Développement Durable - Thème 5: Rôle des pouvoirs publics dans la transition. (2013, January 31)

L’article aborde la question de l’action publique visant à promouvoir le développement durable des quartiers urbains existants. En particulier, il envisage la pertinence de développer cette action à ... [more ▼]

L’article aborde la question de l’action publique visant à promouvoir le développement durable des quartiers urbains existants. En particulier, il envisage la pertinence de développer cette action à partir d’une réorientation de la « politique des quartiers », modalité de l’action publique héritée de la fin du XXème siècle. Les structures publiques de quartier mises en place dans le cadre de cette politique pourraient en effet jouer un rôle d’accélérateurs de la transition de ces quartiers. Elles ont le potentiel pour cela, notamment grâce au réseau social qu’elles développent au sein de la population locale, sans l’engagement de laquelle les pouvoirs publics peuvent bien peu de choses. L’article envisage ensuite la pertinence d’une généralisation de cette politique à tous les quartiers urbains, selon des intensités variables et en complémentarité avec les politiques urbaines plus stratégiques, afin d’assurer un développement équilibré de nos territoires. [less ▲]

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See detailA multiaxial constitutive model for concrete in the fire situation
Gernay, Thomas ULg; Franssen, Jean-Marc ULg

in Proceedings of the 13th Fire and Materials Conference (2013, January 28)

Performance-based design in fire engineering leads to increasing demand for advanced temperature-dependent material models for the load bearing materials used in building structures. These models must be ... [more ▼]

Performance-based design in fire engineering leads to increasing demand for advanced temperature-dependent material models for the load bearing materials used in building structures. These models must be valid in natural fire situations including cooling down phase and must be sufficiently robust for complex numerical calculations such as, for example, the analysis of tensile membrane action in composite slabs. Although structural concrete is widely used in civil engineering, proper modelling of its thermo-mechanical behaviour remains a challenging issue for engineers mainly because of the complexity of the phenomena that result from the microcracking process in this material and because of the necessity to ensure the numerical robustness of the models. This paper presents a new multiaxial concrete model based on a plastic-damage formulation and developed to meet the specific requirements of structural fire engineers and researchers. The model, which incorporates an explicit term for transient creep strain and encompasses a limited number of material parameters, has been implemented in a finite element software dedicated to the nonlinear analysis of structures in fire. The paper presents a series of numerical simulations conducted to highlight the model ability to capture the main phenomena that develop in concrete under fire (permanent strains, degradation of the elastic properties, unilateral effect) as well as its ability to be used for the fire analysis of large-scale structural elements. As an example, the new concrete model is used in the numerical analysis of a full scale fire test on a composite steel-concrete slab and it is shown that the computed and measured results agree. [less ▲]

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See detailCoRoT Observations of O Stars: Diverse Origins of Variability
Blomme, R.; Briquet, Maryline ULg; Degroote, P. et al

in Astronomical Society of the Pacific Conference Series (2013, January 01)

Six O-type stars were observed continuously by the CoRoT satellite during a 34.3-day run. The unprecedented quality of the data allows us to detect even low-amplitude stellar pulsations in some of these ... [more ▼]

Six O-type stars were observed continuously by the CoRoT satellite during a 34.3-day run. The unprecedented quality of the data allows us to detect even low-amplitude stellar pulsations in some of these stars (HD 46202 and the binaries HD 46149 and Plaskett's star). These cover both opacity-driven modes and solar-like stochastic oscillations, both of importance to the asteroseismological modeling of O stars. Additional effects can be seen in the CoRoT light curves, such as binarity and rotational modulation. Some of the hottest O-type stars (HD 46223, HD 46150 and HD 46966) are dominated by the presence of red-noise: we speculate that this is related to a sub-surface convection zone. [less ▲]

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See detailAre Magnetic OB Stars More Prone to Mixing? Still an Unsettled Issue
Morel, Thierry ULg

in Astronomical Society of the Pacific Conference Series (2013, January 01)

We review our knowledge of the mixing properties of magnetic OB stars and discuss whether the observational data presently available support, as predicted by some theoretical models, the idea that ... [more ▼]

We review our knowledge of the mixing properties of magnetic OB stars and discuss whether the observational data presently available support, as predicted by some theoretical models, the idea that magnetic phenomena favour the transport of chemical elements. A (likely statistical) relationship between enhanced mixing and the existence of a field has been emerging over the last few years. As discussed in this contribution, however, a clear answer to this question is presently hampered by the lack of large and well-defined samples of magnetic and non-magnetic stars. [less ▲]

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See detailMassive Non-Thermal Radio Emitters: New Data and their Modeling
Volpi, D.; Blomme, R.; De Becker, Michaël ULg et al

in Astronomical Society of the Pacific Conference Series (2013, January 01)

During recent years some non-thermal radio emitting OB stars have been discovered to be binary or multiple systems. The non-thermal emission is due to synchrotron radiation that is emitted by electrons ... [more ▼]

During recent years some non-thermal radio emitting OB stars have been discovered to be binary or multiple systems. The non-thermal emission is due to synchrotron radiation that is emitted by electrons accelerated up to high energies. The electron acceleration occurs at the strong shocks created by the collision of radiatively-driven winds. Here we summarize the available radio data and more recent observations for the binary Cyg OB2 No. 9. We also show a new emission model which is being developed to compare the theoretical total radio flux and the spectral index with the observed radio light curves. This comparison will be useful in order to solve fundamental questions, such as the determination of the stellar mass-loss rates, which are perturbed by clumping. [less ▲]

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See detail2009: A Colliding-Wind Odyssey
Fahed, R.; Moffat, A. F. J.; Zorec, J. et al

in Astronomical Society of the Pacific Conference Series (2013, January 01)

We present the results from two optical spectroscopic campaigns on colliding-wind binaries (CWB) which both occurred in 2009. The first one was on WR 140 (WC7pd + O5.5fc), the archetype of CWB, which ... [more ▼]

We present the results from two optical spectroscopic campaigns on colliding-wind binaries (CWB) which both occurred in 2009. The first one was on WR 140 (WC7pd + O5.5fc), the archetype of CWB, which experienced periastron passage of its highly elliptical 8-year orbit in January. The WR 140 campaign consisted of a unique and constructive collaboration between amateur and professional astronomers and took place at half a dozen locations, including Teide Observatory, Observatoire de Haute Provence, Dominion Astrophysical Observatory, Observatoire du Mont-Mégantic and at several small private observatories. The second campaign was on a selection of 5 short-period WR + O binaries not yet studied for colliding-wind effects: WR 12 (WN8h), WR 21 (WN5o + O7 V), WR 30 (WC6 + O7.5 V), WR 31 (WN4o + O8), and WR 47 (WN6o + O5). The campaign took place at Leoncito Observatory, Argentina, during 1 month. We provide updated values of most of these systems for the orbital parameters, new estimates for the WR and O star masses and new constraints on the mass-loss rates and colliding wind geometry. [less ▲]

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See detailGAUFRE: a tool for an automated determination of atmospheric parameters from spectroscopy
Valentini, Marica ULg; Morel, Thierry ULg; Miglio, Andrea et al

in 40th Liege International Astrophysical Colloquium 'Ageing low-mass stars: from red giants to white dwarfs' (2013, January 01)

We present an automated tool for measuring atmospheric parameters (T_eff, log(g), [Fe/H]) for F-G-K dwarf and giant stars. The tool, called GAUFRE, is written in C++ and composed of several routines ... [more ▼]

We present an automated tool for measuring atmospheric parameters (T_eff, log(g), [Fe/H]) for F-G-K dwarf and giant stars. The tool, called GAUFRE, is written in C++ and composed of several routines: GAUFRE-RV measures radial velocity from spectra via cross-correlation against a synthetic template, GAUFRE-EW measures atmospheric parameters through the classic line-by-line technique and GAUFRE-CHI2 performs a chi^2 fitting to a library of synthetic spectra. A set of F-G-K stars extensively studied in the literature were used as a benchmark for the program: their high signal-to-noise and high resolution spectra were analysed by using GAUFRE and results were compared with those present in literature. The tool is also implemented in order to perform the spectral analysis after fixing the surface gravity (log(g)) to the accurate value provided by asteroseismology. A set of CoRoT stars, belonging to LRc01 and LRa01 fields was used for first testing the performances and the behaviour of the program when using the seismic log(g). [less ▲]

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See detailX-Ray Plasma Temperature Distribution in the Wind of ζ Puppis
Hervé, Anthony ULg; Rauw, Grégor ULg; Nazé, Yaël ULg

in Astronomical Society of the Pacific Conference Series (2013, January 01)

Different scenarios try to explain the X-ray production in the O-type star wind (magnetic confinement, embedded shocks…) and their plasma temperature distribution. In this context, we have developed a new ... [more ▼]

Different scenarios try to explain the X-ray production in the O-type star wind (magnetic confinement, embedded shocks…) and their plasma temperature distribution. In this context, we have developed a new modeling code which computes synthetic spectra as a function of plasma temperature, abundances, and localization of the X-ray emitting shell in the wind. Then we combine several synthetic spectra in order to fit the observed high-resolution spectra. Our preliminary results on ζ Puppis reveal a non-porous wind as well as non-solar abundances for the CNO elements. More important, an extended region with a low temperature plasma begins to emit close to the star surface while small shells with hotter temperature plasmas emit farther in the wind. [less ▲]

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See detailQuantitative NIR Spectroscopy of Massive Stars
Sana, H.; Stap, F. A.; de Koter, A. et al

in Astronomical Society of the Pacific Conference Series (2013, January 01)

Interest for near-infrared (NIR) spectroscopy of massive stars has been dramatically increasing over the last decade. Because it allows one to observe objects inaccessible at optical wavelengths due to ... [more ▼]

Interest for near-infrared (NIR) spectroscopy of massive stars has been dramatically increasing over the last decade. Because it allows one to observe objects inaccessible at optical wavelengths due to absorption, the infrared domain offers a privileged window to study highly extinguished objects. Yet, a detailed calibration of the massive star properties at NIR wavelength is still missing. Following the lines of the work of Repolust et al. (2005), we have acquired high resolution spectroscopy of several nearby massive stars using VLT/CRIRES, focusing on spectral lines of interest in the J, H, K, and L bands. In this work, we present the earliest results of our quantitative spectroscopic analysis of the main sequence stars in our sample. Using the unique combination of a genetic algorithm approach with the state-of-the-art non-LTE atmosphere model FASTWIND, we compare the stellar and wind properties as derived from the optical and the NIR regime. [less ▲]

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See detailNew INTEGRAL Observations of η Carinae Close to Periastron
Leyder, J.-C.; Walter, R.; Rauw, Grégor ULg

in Astronomical Society of the Pacific Conference Series (2013, January 01)

The soft X-ray thermal emission of η Carinae varies strongly around the periastron, following the orbital period of 5.5 yr. We studied the hard X-ray non-thermal emission of η Car using new INTEGRAL ... [more ▼]

The soft X-ray thermal emission of η Carinae varies strongly around the periastron, following the orbital period of 5.5 yr. We studied the hard X-ray non-thermal emission of η Car using new INTEGRAL observations taken close to periastron. We showed that the hard X-ray emission is very likely to be associated with η Car, and not with any other source found within the INTEGRAL error circle. We also showed that the 3-σ detection during the soft X-ray minimum is consistent with a hydrogen column density that does not exceed 6×10[SUP]23[/SUP] cm[SUP]-2[/SUP]. [less ▲]

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See detailLinearized Power Flow Equations Based Predictive Control of Transmission Voltages
Hajian, Mahdi; Rosehart, William; Glavic, Mevludin et al

in Proceedings of the 46th Hawaii International Conference on System Sciences (HICSS-46) (2013, January)

In this paper, an approach based on the concept of Model Predictive Control (MPC) is used to control transmission voltages and prevent long-term voltage instability. The MPC model is based on a linearized ... [more ▼]

In this paper, an approach based on the concept of Model Predictive Control (MPC) is used to control transmission voltages and prevent long-term voltage instability. The MPC model is based on a linearized steady-state system model derived from power flow equations. Simulation results are presented for the case of Nordic32 test system. [less ▲]

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See detailWindelband on Beurteilung
Dewalque, Arnaud ULg

in Van der Schaar, Maria (Ed.) Judgement and the Epistemic Foundation of Logic (2013, January)

A main challenge for philosophers of the late nineteenth and early twentieth century was to construct judgements as acts of decision or position (thesis) rather than as acts of combination or synthesis ... [more ▼]

A main challenge for philosophers of the late nineteenth and early twentieth century was to construct judgements as acts of decision or position (thesis) rather than as acts of combination or synthesis. Let us call this the thetic view. Franz Brentano (1838–1917) is usually regarded as the best supporter of this view, since he takes advantage of the Kantian-Herbartian notion of ‘position’ (Setzung) to break with the traditional definition of judgement as symplokè (Martin 2006, 64 sq.; see Brentano 2008, 335). Generally speaking I think this usual line of interpretation is quite cor- rect, yet it could benefit from a more detailed account of the Brentano reception. What I would like to suggest is this: At stake in Brentano’s legacy is not just the rejection of the synthetic view but also the way in which the thetic dimension is itself conceived. There are, in fact, various ways of constructing judgements as thetic or positional phenomena. Brentano’s notion of ‘existential assertion’ is not the only way to do so. [less ▲]

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See detailQu’est-ce qu’une preuve de développement de compétence ? Témoignages autour de la récolte et de l’analyse critique de preuves de développement de compétences dans deux programmes faisant usages du portfolio pour l’évaluation finale de leurs étudiants
Poumay, Marianne ULg; Georges, François ULg

in Actes du 25ème colloque de l’ADMEE-Europe Fribourg - Evaluation et autoévaluation, quels espaces de formation (2013, January)

Il n’est pas « naturel » pour l’apprenant d’entrer dans une logique par laquelle il lui revient de démontrer ses progrès. Dans le présent article, nous tentons de mieux cerner la notion de preuves au ... [more ▼]

Il n’est pas « naturel » pour l’apprenant d’entrer dans une logique par laquelle il lui revient de démontrer ses progrès. Dans le présent article, nous tentons de mieux cerner la notion de preuves au travers de portfolios réalisés par des enseignants et formateurs inscrits dans deux programmes de l’université de Liège (Belgique). [less ▲]

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See detailA nap to recap: Reward strengthens relational memory during daytime sleep
Igloi, Kinga; Gaggioni, Giulia ULg; Eryilmaz, Hamdi et al

in Abstract book of the ABIM meeting (2013, January)

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See detailFrom Fritz Teufel to Leo Bassi : Happening and provocation. Just a History of Overbidding and Inflation?
Hamers, Jérémy ULg

in Utopia and Critical Thinking in the Creative Process (2013, January)

Ludico-symbolic coups and assassination attempts, make-believe funerals and degeneration of trials into grotesque rhetorical jousting : everywhere throughout Europe and the United States in the mid ... [more ▼]

Ludico-symbolic coups and assassination attempts, make-believe funerals and degeneration of trials into grotesque rhetorical jousting : everywhere throughout Europe and the United States in the mid sixties, political happenings thrived. The acts/performances, which were for the most part carried out by groups or individuals close to the Marxist and pacifist student protest movement, can’t be dissociated from a situationnist understanding of the urban milieu, transformed into one large stage for militant theatre. Founded on the principal of diversion and provocation, these actions quickly led to inflation and overbidding. Caught in a hectic whirl which forced them to always push the limit further in order to evade, if only temporarily, a process of institutionalisation that threatens any act of provocation, they soon begin to loose their political effectiveness. Born from a common political and artistic origin as the leaders of the student left movement, several “terrorist” groups harden their tone at the beginning of the seventies and perpetrate acts of violence with a revolutionary intention. Breaking away from the theatrical and ludic student activity while also retaining their situationnist obedience and a certain theatrical conception of the urban place, these armed groups think up actions in the beginning of the seventies which induce a rupture in the performative and theatrical tradition of the end of the sixties. These acts have been the subject of in depths studies by authors who, however conscious of the theatrical origins of the actions of the extreme left terrorists, refer to a terminology which imposes a distinction between action (or happening/performance) and “terrorist” acts. On the basis of this terminological distinction, we will demonstrate not only that these actions of the beginning of the seventies must be considered in a direct lineage with the political-theatrical creation of the end of the sixties, but that they also offer a first escape route, politically efficient, to the inflation which threatens any act of provocation. If the actions of the RAF, the Red Brigades or the Weathermen evade institutionalisation which threatens any act of provocation, they nevertheless remain politically unsustainable and condemn those who imagine them as well as those who execute them to an inevitably tragic ending, incompatible with the pursuit of creative practice. This paradigm will guide us in identifying some more recent creative processes (fake conferences of the Yes Men, shows/performances of Leo Bassi) which try to overcome in turn the political precariousness of their predecessors in endowing themselves with an (auto)reflexive dimension. Beyond their heterogeneity, these actions/shows shall thus be perceived as objects which surpass the act of provocation, inevitably destined to wear out. Because, in actively implicating the spectator to a point where he becomes a full fledge component of an engaged and reflexive creative process, these practices reinstate the politico-theatrical performance in its indispensable efficiency. [less ▲]

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See detailA Trie Merging Approach with Incremental Updates for Virtual Routers
Luo, LAYONG; Xie, Gaogang; Salamatian, Kavé et al

in Annual International Conference on Computer Communications (2013)

Virtual routers are increasingly being studied, as an important building block to enable network virtualization. In a virtual router platform, multiple virtual router instances coexist, each having its ... [more ▼]

Virtual routers are increasingly being studied, as an important building block to enable network virtualization. In a virtual router platform, multiple virtual router instances coexist, each having its own FIB (Forwarding Information Base). In this context, memory scalability and route updates are two major challenges. Existing approaches addressed one of these challenges but not both. In this paper, we present a trie merging approach, which compactly represents multiple FIBs by a merged trie and a table of next-hop-pointer arrays to achieve good memory scalability, while supporting fast incremental updates by avoiding the use of leaf pushing during merging. Experimental results show that storing the merged trie requires limited memory space, e.g., we only need 10MB memory space to store the merged trie for 14 full FIBs from IPv4 core routers, achieving a memory reduction by 87% when compared to the total size of the individual tries. We implement our approach in an SRAM (Static Random Access Memory)-based lookup pipeline. Using our approach, an on-chip SRAM-based lookup pipeline with 5 external stages is sufficient to store the 14 full IPv4 FIBs. Furthermore, our approach can guarantee a minimum update overhead of one write bubble per update, as well as a high lookup throughput of one lookup per clock cycle, which corresponds to a throughput of 251 million lookups per second in the implementation. [less ▲]

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See detailKarenwebberite, Na(Fe,Mn)2+PO4, a new phosphate mineral species from the Malpensata pegmatite, Lecco province, Italy.
Vignola, P; Hatert, Frédéric ULg; Fransolet, André-Mathieu ULg et al

in PEG2013 – 6th International Symposium on Granitic Pegmatites, Abstract book (2013)

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See detailAnalyse de l'efficience des traitements de mammites de 60 fermes de Wallonie dans la base LAECEA
Theron, Léonard ULg; Reding, Edouard; Detilleux, Johann ULg et al

in Brard, Christophe (Ed.) Recueil des Journées Nationale des GTV (2013)

Le traitement de la mammite bovine est un acte à part dans la routine d’une exploitation bovine. En effet, si les cas les plus graves sont vus presque systématiquement pas le vétérinaire traitant en ... [more ▼]

Le traitement de la mammite bovine est un acte à part dans la routine d’une exploitation bovine. En effet, si les cas les plus graves sont vus presque systématiquement pas le vétérinaire traitant en France ou en Belgique, la plupart des cas peu sévères font l’objet d’une tacite délégation de diagnostic et de traitement, sur base d’une formation préalable et d’une prescription enregistrée. Aujourd’hui, cette pathologie représente le plus important poste de consommation d’antibiotiques en exploitation laitière. Concernant cette problématique, la profession vétérinaire doit disposer de nouveaux outils de diagnostic, de traitement, et surtout d’évaluation de la qualité du traitement. Or, depuis la fin des années 1940, la pratique de l’antibiothérapie est restée, comme en médecine humaine, basée essentiellement sur l’antibiothérapie empirique, plus ou moins régulée par des cultures bactériologiques et des antibiogrammes (Durel et al., 2012). La profession s’est dotée d’outils d’analyse épidémiologique et clinique au cours des décennies, mais les résultats sont mitigés : une diminution globale de la consommation d’antibiotiques, mais le recours accru à des classes de dernières générations. Aujourd’hui le grand enjeu de l’antibiothérapie se corse, avec l’identification de mécanisme de résistance suspects d’être communs avec la médecine humaine(Jaglic et al., 2010). Plusieurs classes de molécules communes avec la médecine humaine sont identifiées, et leur utilisation menace d’être régulée (Bagcigil et al., 2007). Face à ce constat, l’utilisation des antibiotiques destinés au traitement de la mamelle a été étudiée en Belgique, dans soixante fermes laitières wallonnes (Théron et al., 2011). [less ▲]

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See detailNumerical Exploration of Oscillation Modes in Rapidly Rotating Stars
Ballot, Jérôme; Lignières, François; Reese, Daniel ULg

in Goupil, M.; Belkacem, K.; Neiner, C. (Eds.) et al Studying Stellar Rotation and Convection (2013)

In this chapter, we show that two-dimensional oscillation codes help us to improve our knowledge of the effects of rapid rotation on acoustic (p) and gravity (g) modes. We first discuss how to solve the ... [more ▼]

In this chapter, we show that two-dimensional oscillation codes help us to improve our knowledge of the effects of rapid rotation on acoustic (p) and gravity (g) modes. We first discuss how to solve the full problem of stellar oscillations in rapidly rotating stars by including the effects of the Coriolis force as well as those of the centrifugal distortion. We illustrate the development and the validation of a 2-D code using the Two-dimensional Oscillation Program (TOP) as an example. We then describe what strategies are being developed to explore the p- and g-mode spectra, how effective these methods are, and what intrinsic difficulties they face. In the last part of this chapter, we present results obtained with these techniques. [less ▲]

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See detailBilinguisme et digraphisme dans le codex miscellaneus de Montserrat
Macedo, Gabriel ULg

in Rochette, Bruno; Marganne, Marie-Hélène (Eds.) Bilinguisme et digraphisme dans le monde gréco-romain. L'apport ds papyrus latins. Actes de la table ronde de Liège, 12-13 mai 2011 (2013)

The present paper proposes a codicologic, palaeographic and contextual study of an extraordinary Late Antique book: the Montserrat codex miscellaneus. Dated on palaeographic grounds to the IV century AD ... [more ▼]

The present paper proposes a codicologic, palaeographic and contextual study of an extraordinary Late Antique book: the Montserrat codex miscellaneus. Dated on palaeographic grounds to the IV century AD, this manuscript provides us with evidence of particular interest on bilingualism and digraphism in Byzantine Egypt, for it is the only antique codex containing texts in both Greek and Latin, of both Christian and Secular content, and pertaining to different literary genres, such as rhetoric, hexametric poetry and Christian liturgy. [less ▲]

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See detailInfluence de facteurs environnementaux influençant la teneur en urée dans le lait de vache en Wallonie et estimation des rejets azotés
Dufrasne, Isabelle ULg; Knapp, Emilie ULg; Istasse, Louis ULg et al

in Vandenberghe, Christophe; Colinet, Gilles; Destain, Jean-Pierre (Eds.) et al 2ème Atelier Nitrate-Eau, évaluation du programme de gestion durable de l'azote (2013)

En Wallonie, les teneurs en urée du lait de tank sont déterminées dans toutes les fermes lors de chaque livraison à la laiterie par le comité du lait. Un total de 8295337 données récoltées pendant l'année ... [more ▼]

En Wallonie, les teneurs en urée du lait de tank sont déterminées dans toutes les fermes lors de chaque livraison à la laiterie par le comité du lait. Un total de 8295337 données récoltées pendant l'année 2000 et la période 2002-201 ont été analysées à l'aide d'un modèle linéaire. [less ▲]

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See detailTransient Fokker-Planck equation with SPH method : Application in seismic design
Canor, Thomas ULg; Denoël, Vincent ULg

in Papadrakakis, M; Papadopoulos, V; Plevris, V (Eds.) Proceedings COMPDYN2013 (2013)

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See detailPossibilities and limitations of the Prevost model for the modelling of cohesionless soil cyclic behaviour
Cerfontaine, Benjamin ULg; Charlier, Robert ULg; Collin, Frédéric ULg

in Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering (2013)

The Prevost’s model is currently used to model cyclic behaviour of soils especially in earthquake engineering. The original model is able to capture the main features of cyclic behaviour: pore pressure ... [more ▼]

The Prevost’s model is currently used to model cyclic behaviour of soils especially in earthquake engineering. The original model is able to capture the main features of cyclic behaviour: pore pressure build up and plastic deformation accumulation. But accurate modelling of laboratory tests requires improvements. Enhanced models exist but require a lot of parameters that make them cumbersome for practical purpose. A suction caisson, part of a tripod offshore foundation for wind turbines is modelled. Possibilities of the Prevost’s model are highlighted compared with a classical Drucker-prager model. [less ▲]

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See detailHealth screening to identify opportunities to improve preventive medicine in cats and dogs:focus on nutrition status
Diez, Marianne ULg; Picavet, Philippe; Ricci, Rebecca et al

in Hesta, Myriam (Ed.) Proceedings of the 17 th European Society of Veterinary and Comparative Nutrition Congress (2013)

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See detailTraining-induced decrease of cytokines production by equine alveolar macrophages
Waldschmidt, Ingrid ULg; Frellstedt, Linda ULg; Art, Tatiana ULg et al

in Proceedings of the 6th Congress of the European College of Equine Internal Medicine (ECEIM) (2013)

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See detailGénéralisation Min Max pour l'Apprentissage par Renforcement Batch et Déterministe : Relaxations pour le Cas Général T Etapes
Fonteneau, Raphaël ULg; Ernst, Damien ULg; Boigelot, Bernard ULg et al

in 8èmes Journées Francophones de Planification, Décision et Apprentissage pour la conduite de systèmes (JFPDA'13) (2013)

Cet article aborde le problème de généralisation minmax dans le cadre de l'apprentissage par renforcement batch et déterministe. Le problème a été originellement introduit par [Fonteneau, 2011], et il a ... [more ▼]

Cet article aborde le problème de généralisation minmax dans le cadre de l'apprentissage par renforcement batch et déterministe. Le problème a été originellement introduit par [Fonteneau, 2011], et il a déjà été montré qu'il est NP-dur. Deux schémas de relaxation pour le cas deux étapes ont été présentés aux JFPDA'12, et ce papier présente une généralisation de ces schémas au cas T étapes. Le premier schéma fonctionne en éliminant des contraintes afin d'obtenir un problème soluble en temps polynomial. Le deuxième schéma est une relaxation lagrangienne conduisant également à un problème soluble en temps polynomial. On montre théoriquement que ces deux schémas permettent d'obtenir de meilleurs résultats que ceux proposés par [Fonteneau, 2011]. [less ▲]

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See detail(Bio)synthesis, extraction and purification of garlic derivatives showing therapeutic properties
DETHIER, Bérénice ULg; Nott, Katherine ULg; Fauconnier, Marie-Laure ULg

in Smagghe, Guy; Boeckx, Pascal; Bossier, Peter (Eds.) et al Communications in Agricultural and Applied Biosciences 2013 (2013)

Garlic has been used worldwide for centuries for its taste but also for its health benefits. Garlic's therapeutic compounds are mostly organosulfur compounds, recognized for their antioxidant, anticancer ... [more ▼]

Garlic has been used worldwide for centuries for its taste but also for its health benefits. Garlic's therapeutic compounds are mostly organosulfur compounds, recognized for their antioxidant, anticancer, anti-inflammatory and antimicrobial activity and their effect on cardiovascular diseases (reviewed by Block, 2010). When the cloves are crushed, allicin is synthesized as the vacuolar enzyme alliinase meets its substrate, the cytoplasmic alliin. Allicin is unstable and undergoes rearrangements to form three main groups of derivatives: allyl sulfides, ajoenes and vinyldithiins. The garlic processing method has a major influence on the products released both in terms of chemical composition and yields. For example, the type of medium (aqueous or oily) and the temperature can favour the formation of specific compounds. Our work aims at studying the influence of - the garlic origin, - the reaction conditions and - the extraction procedures (solvent, microwaves) on the organosulfur compounds formed. Particular attention is given to the stereochemistry and the stability of the compounds. Better understanding of the formation of high value natural molecules is important in order to lead further studies on the biological activity of the compounds or to use them as nutraceuticals. [less ▲]

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See detailThermal manipulations during embryogenesis induce long-lasting changes in the regulation of energy metabolism
Loyau, T.; Métayer-Coustard, S.; Crochet, S. et al

in Proceedings of the 6th Combined Workshop on Fundamental Physiology and Perinatal Development in Poultry (2013)

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See detailBoosting Response Rates: Evidence from Flemish Travel Behavior Survey
Cools, Mario ULg

in Proceedings of the 92nd Annual Meeting of the Transportation Research Board (DVD-ROM) (2013)

This paper investigates the transition of the Flemish travel survey (OVG) from a household-based travel survey to a person-based travel survey. The paper examines the design features of the different OVGs ... [more ▼]

This paper investigates the transition of the Flemish travel survey (OVG) from a household-based travel survey to a person-based travel survey. The paper examines the design features of the different OVGs, with particular attention to the resulting response rates. In addition to the sample unit, the contact and survey procedure has switched from telephone/postal to face-to-face. The most striking effect of the changed methodology is the spectacular increase in the response rates: overall response rates of the most recent OVGs were more than double that of the previous OVGs, resulting in overall response rates of 75%. In addition, the likelihood that some questionnaires were missing (e.g. diaries were retrieved, but household questionnaires were not) decreased from 7% to 3%. Furthermore, the paper shows that a person-based travel survey still can be used for travel demand modeling frameworks that incorporate (some) household interactions. Notwithstanding, some issues have been raised, such as the decreased comparability of travel figures due to the changes in the survey design. In conclusion, the inclusion of a “with whom” dimension in the trip diary is recommended, and it is advocated that policy makers should clearly outline the primary objectives for the OVG for the coming years. [less ▲]

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See detailComparison of shear and pull-off tests for testing adhesion of different content limestone fillers mortars used as repair system
Chendes, Remus; Dan, Sorin; Courard, Luc ULg

in STOIAN, Valeriu; DAN, Daniel; BOB, Corneliu (Eds.) et al Construction sustainability: efficient solution for design, execution and rehabilitation of the building (2013)

When a repair operation is performed and a new concrete or mortar is applied on the old concrete substrate, it is very important to have a good bond between the old concrete layer and the repair concrete ... [more ▼]

When a repair operation is performed and a new concrete or mortar is applied on the old concrete substrate, it is very important to have a good bond between the old concrete layer and the repair concrete system. The bond strengths usually determinate using pure tensile tests (pull-off tests) because of the field applicability of this category of tests. However, in most of the applications, shear stress is the main reason of the bond failure. In general, bond strength under tensile is considered smaller than bond strength in shear stress conditions. The objective of this paper is to compare the results obtained from tensile and shear tests and to potentially determine a mathematical relation between shear and tension. The materials used for tests are Ordinary Portland Cement and modified limestone fillers mortars. Specific humidity storage conditions have been selected. [less ▲]

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See detailLe rôle du commerce frontalier des produits alimentaires avec le Rwanda dans l'approvisionnement des ménages de la ville de Bukavu (province du Sud-Kivu)
Vwima Ngezirabona, Stany ULg; Mastaki, Jean-Luc; Lebailly, Philippe ULg

in Brot, Jean (Ed.) Les Cahiers de l'Association Tiers-Monde n° 28-2013 : XXVIIIes Journées sur le Développement "Mobilités internationales, déséquilibres et développement : vers un développement durable et une mondialisation décarbonée ?" (2013)

Ce travail s'inscrit dans un cadre géographique regroupant deux pays (RDC et Rwanda) appartenant à la Communauté Économique des Pays des Grands Lacs (CEPGL) avec le Burundi. Le commerce des produits ... [more ▼]

Ce travail s'inscrit dans un cadre géographique regroupant deux pays (RDC et Rwanda) appartenant à la Communauté Économique des Pays des Grands Lacs (CEPGL) avec le Burundi. Le commerce des produits alimentaires entre population transfrontalière est une réalité: Elle est facilitée par un ensemble d'accords et certaines pratiques de proximité qui n'ont jamais été mises en cause, même pendant les périodes des guerres. Les flux importants de produits alimentaires enregistrés lors de la traversée du corridor frontalier entre Bukavu (RDC) et le district de Rusizi (Rwanda), les difficultés et risques auxquels les petits commerçants et les ménages sont soumis, constituent des éléments qui ont guidé le choix de l'approche conceptuelle. Lors de la traversée des frontières, on peut se rendre compte que la ville de Bukavu et le district de Rusizi (Rwanda) ont des fonctions bien réparties. Alors que Bukavu fonctionne comme un grand centre de consommation, le district de Rusizi s'est positionné stratégiquement comme une ville entrepôt (Soule et Musila, 2005). Ces approvisionnements à partir de l'étranger solidifient encore la dépendance alimentaire de la province du Sud-Kivu en général et la ville de Bukavu en particulier. Ce problème mérite une étude particulière et a guidé aussi le choix de ce travail. Le choix de l'approche conceptuelle de cette étude a été aussi motivé par le souci d'étalonner la contribution du commerce frontalier à la paix, à la lutte contre la pauvreté et à la sécurité alimentaire. Ceci constitue des réponses à plusieurs préoccupations de développement et d'intégration régionale. Dans ce cadre, plusieurs auteurs, comme Johnson et al. (2009), Cling (2006), Tegera et al. (2007), Masato Hayashikawa (2009), ont déjà montré qu'il existe un lien entre commerce, développement et lutte contre la pauvreté. Divers programmes sous-régionaux (CEPGL), régionaux (COMESA, CIRGL), internationaux (Banque mondiale) ainsi que diverses ONGs internationales (Alert International, DFID) s'intéressent à cette problématique. [less ▲]

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See detailImpact of different scenarios related to the new Common Agricultural Policy on farm income in Wallonia
Burny, Philippe ULg; Terrones Gavira, François ULg; Habran, Maxime ULg

in Lorencowicz, Edmund; Uziak, Jacek; Huyghebaert, Bruno (Eds.) VI International Scientific Symposium "Farm Machinery and Processes Management in Sustainable Agriculture" : Symposium Proceedings (2013)

The Common Agricultural Policy (CAP) has been reformed several times since the treaty of Rome in 1958. For the period 2014-2020 at the European level, a new CAP had to be agreed upon by the 27 Member ... [more ▼]

The Common Agricultural Policy (CAP) has been reformed several times since the treaty of Rome in 1958. For the period 2014-2020 at the European level, a new CAP had to be agreed upon by the 27 Member States and the EU parliament. Discussions were launched in 2010 and several proposals were made. In Belgium, as agricultural policy is regionalized, the Walloon Minister for Agriculture decided to support academic research in order to assess the possible impact of different scenarios on farm income, and so to help the regional authorities to take decisions when the EU legislation would be adopted, giving a large set of possibilities to the Members States/regions. So, different scenarios were defined with the partners of the administration, including farmers' unions, and their impacts on farm income were calculated. [less ▲]

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See detailDescribing the “elusive”: a new perception of the practices and the resources of illuminators in the North of Europe from the fourteenth to the sixteenth century
Neven, Sylvie ULg

in Saunders, David; Spring, Marika; Meek, Andrew (Eds.) Renaissance Workshop (2013)

Due to their trade value, a huge range of artistic materials are documented and recorded in historical written sources. However, certain substances are not registered in these archives because they did ... [more ▼]

Due to their trade value, a huge range of artistic materials are documented and recorded in historical written sources. However, certain substances are not registered in these archives because they did not have a market value. This is especially the case for vegetal species which artists easily found in nature and used for their colouring principles, like anthocyanin colorants. As they are characterized by a great sensitivity to the slightest changes in pH and as they are highly unstable in ordinary daylight, these colorants were not frequently used in the dyeing of quality materials or in painting. Up until now, they have been mainly considered as being used in a domestic context, for the dyeing of everyday clothes. Moreover, after ageing, the plant species are difficult to identify with currently-used analytical methods. We therefore intend to bring to light these « elusive » substances through the close examination of an original and primordial source : artistic recipe books. Our previous researches have highlighted that these books not only describe these organic colorants, but that they also indicate their use in illumination. From the 14th to the 16th century, hundreds of recipe books containing information relating to these colorants were produced. They describe both their preparation, their diverse applications and the required conditions for their conservation. These recipe books also inform us about the different hues obtained from these colorants. Our study will involve analysing the significance of these organic substances as well as (re)defining their use with a view to increasing our knowledge of historical artistic practices and materials. Furthermore, it could also help to identify specific artistic productions or workshops. Finally, it would be possible to learn more about the status of artists, their working conditions and their training. [less ▲]

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See detailPregnancy-associated glycoproteins in sheep: breeds, techniques and achievements
El Amiri, Bouchra; Melo de Sousa, Noelita ULg; Szenci, Otto et al

in Proceedings of the 23rd International Congress of Hungarian Association for Buiatrics (2013)

The aim of the present review is to summarize the achievements on pregnancy-associated glycoproteins in sheep during the last 20 years on terms of results obtained after purifications, molecular biology ... [more ▼]

The aim of the present review is to summarize the achievements on pregnancy-associated glycoproteins in sheep during the last 20 years on terms of results obtained after purifications, molecular biology, radio-immunoassays (RIA), enzyme linked immune sorbent assay (ELISA), double radial immune-diffusion (Ouchterlony) and Western blot techniques. The analysis of documented papers that concerned these attempts showed that the animal genetic material used was composed of variable breeds from north Africa, Europe and USA (the Aragonesa, Ouled Djellal, Laucaun drairy sheep, Berrichone, Texel x Norvegian crossed ewes, Awassi x Merino, Blackheaded Moutton sheep x Blackheaded German Mutton sheep (BGM), Rhoen sheep crosses of BGM with Dorper sheep, Assaf, Chura, Merino, Texel, Suffolk, Boujaâd Moroccan breed). The RIA represents the wildspread technique used (54%) while Oucherlony and Western blot had been limited in use (4% each). From 1990 to 2000 only 27% of the achievements being available today were realized. The main data, profiles and studies were performed from 2000 to now (63%). To conclude, this review allows summarizing and updating the knowledge about the PAG in sheep. [less ▲]

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See detailFoucon de Candie : microscopie et macroscopie de l'interpolation
Moreno, Paola ULg

in Combes, Annie; Szkilnik, Michelle (Eds.) Le texte dans le texte. L'interpolation médiévale (2013)

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See detailThe proportion of ungrazed area of the pasture (PUP) determines when forage intake and diet quality decline in grazing systems
Benvenutti, Marcelo A.; Pavetti, Daniel R.; Cangiano, Carlos A. et al

in Proceedings of the 22nd International Grassland Congress (2013)

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See detailCharacterisation of cyclicity and relative sea-level fluctuations using magnetic susceptibility, Late Devonian (Frasnian) Hull platform, Canning Basin, Australia.
Da Silva, Anne-Christine ULg; George; Chow et al

in Whalen; Osadetz; Richards (Eds.) et al IGCP-580/596, Geophysical and Geochemical techniques : a window on the Paleozoic world, Abstract book (2013)

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See detailExercise modifies the innate immune response in equine bronchial epithelial cells
Frellstedt, Linda ULg; Gosset, Philippe; Pirottin, Dimitri ULg et al

in Proceedings of the 3rd Scientific Meeting of the Faculty of Veterinary Medicine (University of Liege - Belgium) (2013)

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See detailDynamic Computation and Design of a World’s Record Death-Ride
Denoël, Vincent ULg; Canor, Thomas ULg; Demanet, Johan

in Proceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (2013)

A death-ride is a long cable anchored between two dead ends, allowing the crossing of wide valleys. Besides these mobility purposes, it is also operated in rescue operations, or simply for leisure. From a ... [more ▼]

A death-ride is a long cable anchored between two dead ends, allowing the crossing of wide valleys. Besides these mobility purposes, it is also operated in rescue operations, or simply for leisure. From a serviceability viewpoint, a death-ride design should offer a comfortable and/or enjoyable journey to the riders, which is typically expressed in terms of maximum velocity. From a strength viewpoint, a death-ride should be designed in order to safely withstand the cable self-weight, wind forces, the rider’s load and at last but not least, the initial tension in the cable. Actually, the tensioning operation is usually subtle. Indeed, in case of a loose cable, the rider may be stopped in the in-span sagging area. Conversely a too tight cable will generate large stresses but also large outlet velocity at the end of the ride. The design of a death-ride is a tradeoff between all these aspects. The paper presents the dynamic model that was used for the design of a 1.2km long death-ride, with an only 10-mm diameter, a constraint fixed in the very first stages of this project for compatibility reasons, with the existing equipment. This death-ride, built and used in May 2010 in a Grimp competition [1], has a world record of the longest death-ride in urban area. The structural part of the dynamic model is rather common, with a co-rotational description of the cable by means of a chain-like model [2]. An interesting feature, however, concerns the interaction between the rider and the cable. In fact, because the pulley is rolling on the cable, the position of the force acting on the cable, resulting from the ride, depends on the rider’s velocity, which itself depends on the cable inclination. This coupling is solved in a staggered manner, and the details of the algorithm are given in the full paper. In some limiting cases, a comparison with analytical solutions is also provided, where these analytical solutions are available [3]. Experimental validation and observation of the operated death-ride will also be presented. [less ▲]

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See detailFlowOS: A Programmable Platform for Commodity Hardware Middleboxes
Abdul, Alim; Bezahaf, Mehdi; Mathy, Laurent ULg

in Proceedings of CFI 2013 (2013)

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See detailMaternal transisition of dietary omega-3 fatty acids: effects on zootechnical performance and health status of the broiler progeny
Koppenol, A.; Franssens, L.; Everaert, Nadia ULg et al

in Proceedings of the 17th European Society of Veterinary and Comparative Nutrition Congress (2013)

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See detailSeeing the corona with the solar probe plus mission: the wide-field imager for solar probe+ (WISPR)
Vourlidas, A.; Howard, R. A.; Plunkett, S. P. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2013)

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See detailPregnancy-Associated Glycoproteins (PAGs) in prolific (Boujaâd x D’man) and non- prolific (Boujaâd) Moroccan sheep by means of four radio-immunoassays
El Amiri, Bouchra; Melo de Sousa, Noelita ULg; El Abbadi, N et al

in Proceedings of the 23rd International Congress of Hungarian Association for Buiatrics (2013)

The aim of the present study was: i) to investigate the use of PAGs for pregnancy follow up in Boujaâd non prolific (n=8) vs. Boujaâd x D’man a prolific sheep (n=20), ii) to study whether the boPAG tracer ... [more ▼]

The aim of the present study was: i) to investigate the use of PAGs for pregnancy follow up in Boujaâd non prolific (n=8) vs. Boujaâd x D’man a prolific sheep (n=20), ii) to study whether the boPAG tracer (daily available at the laboratory of physiology of reproduction, Liège, could be used in RIA without affecting the results, iii) to prospect the possibility of transferring the technique to a Moroccan laboratory. The blood samples were weekly collected from the first week of gestation till the 4 week after lambing. The RIA1, RIA2, RIA3 and RIA4 were all based on ovPAG standard, while the tracer and antiserum changed according to the system. The RIA1, RIA3 and RIA4 were performed in Belgium while the RIA2 was carried out in Morocco. The results showed that the highest correlation was obtained between the RIA3 and RIA4 (R2 = 0.83) while the lowest was recorded between the RIA2 and RIA4 (R2 = 0.69). The lowest concentrations derived from the RIA2. The highest concentrations were recorded before lambing (279.29; 88.21; 268.75; 152.67 ng/ml respectively for RIAs 1, 2, 3 and 4). To conclude, the profiles of ovPAG showed that it is possible to flow-up with success using the four systems. In addition, the RIA1 using boPAG as tracer could be a good alternative to the homologous one and finally, it is possible to set up routinely the RIA technique for PAG detection in Moroccan laboratories. [less ▲]

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See detailScientific and Technological Payloads Aboard the B3LSat CubeSat of the QB50 Network
Dell'Elce, Lamberto ULg; Kerschen, Gaëtan ULg; Delabie, Tjorven et al

in Proceedings of the 2nd IAA Conference on University Satellite Missions and Cubesat Workshop (2013)

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See detailNumerical modeling and digital image correlation strain measurements of coated metal sheets submitted to large bending deformation
Duchene, Laurent ULg; Ben Bettaieb, Amine ULg; Tuninetti Vásquez, Victor ULg et al

in Proceedings of the 16th ESAFORM conference on Material Forming (2013)

The recently developed SSH3D solid-shell element, which is based on the Enhanced Assumed Strain (EAS) and the Assumed Natural Strain (ANS) techniques, is utilized for the modeling of a severe bending ... [more ▼]

The recently developed SSH3D solid-shell element, which is based on the Enhanced Assumed Strain (EAS) and the Assumed Natural Strain (ANS) techniques, is utilized for the modeling of a severe bending sheet forming process. To improve the element's ability to capture the through thickness gradients, a specific integration scheme was developed. In this paper, the performances of this element for the modeling of the T-bent process were assessed thanks to comparison between experimental and numerical results in terms of the strain field at the outer surface of the sheet. The experimental results were obtained by Digital Image Correlation. It is shown that a qualitative agreement between experimental and numerical results is obtained but some numerical parameters should be optimized to improve the accuracy of the simulation predictions. In this respect, the influence of the penalty coefficient of the contact modeling was analyzed. [less ▲]

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See detailArt on the lagoon: Eliasson at the Biennale of Venice
Szanto, Catherine ULg; Gay, Fabrizio; Ballarin, Matteo

in Newman, Conor; Nussaume, Yann; Pedroli, Bas (Eds.) Landscape and Imagination. Towards a new baseline for education in a changing world (2013)

The Biennales of Venice are not limited to exhibitions in national pavilions. Every year artists and architects choose to confront the site and more specifically, the lagoon. In the edition of 2005, the ... [more ▼]

The Biennales of Venice are not limited to exhibitions in national pavilions. Every year artists and architects choose to confront the site and more specifically, the lagoon. In the edition of 2005, the artist O. Eliasson proposed an installation (Your black horizon, 2005) where the visitors left the wide expanse and intense light of the lagoon to enter a darkened enclosed space with subtle light effects. These aesthetic experiences enhanced the visitors’ perception of light by changing the usual spatiality and temporality of colour. We will analyze the role of memory in the rite of the visit, and look at how the museal strategies of the artist create a play with spatial memory and sense of orientation in relation to the outdoor space of the lagoon. [less ▲]

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See detailComparative analysis of the energy dissipation on a stepped spillway downstream of a Piano Key Weir
Silvestri, Aurélien ULg; Archambeau, Pierre ULg; Pirotton, Michel ULg et al

in Erpicum, Sébastien; Laugier, Frédéric; Pfister, Michael (Eds.) et al Labyrinth and Piano Key Weirs II - PKW 2013 (2013)

A systematic experimental study has been carried out to compare the residual energy at the toe of a stepped spillway of varied length considering a classical ogee-crested weir (OCW) or two different piano ... [more ▼]

A systematic experimental study has been carried out to compare the residual energy at the toe of a stepped spillway of varied length considering a classical ogee-crested weir (OCW) or two different piano key weirs (PKW) at the top of the structure. Four spillway lengths have been considered on a wide range of discharge. An indirect method has been used to compute the residual flow energy at the spillway toe from water depth measurements in a horizontal channel downstream. The results indicate that uniform flow conditions, i.e. flow energy at the spillway toe independent of the spillway length, are reached on significantly shorter spillways downstream of a PKW than downstream of an OCW. However, the uniform flow energy at constant discharge on the spillway is found to vary depending on the weir type. In particular, it is smaller downstream of the OCW than downstream of the PKWs. [less ▲]

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See detailContrast enhanced nanoCT for 3D quantitative and spatial analysis of in vitro manufactured extracellular matrix in metallic tissue engineering scaffolds
Sonnaert, Maarten; Papantoniou, Ioannis; Geris, Liesbet ULg et al

in Abstract book User Meeting Bruker MicroCT 2013 (2013)

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See detailTransition et écologisation de l’agriculture en Région Wallonne : trajectoires en Agriculture de Conservation
Stassart, Pierre M ULg; Vankeerberghen, Audrey ULg; Dannevoye, Bastien ULg et al

in van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) Actes 1er Congrès Interdisciplinaire de Développement Durable: Quelle transition pour nos sociétés. Thème 2: Alimentation , Agriculture, Elevage. 101-122 (2013)

Cet article s’intéresse aux trajectoires de transition d’agriculteurs engagés dans le mouvement d'« Agriculture de Conservation des sols » en Région Wallonne (Belgique). L'agriculture de conservation vise ... [more ▼]

Cet article s’intéresse aux trajectoires de transition d’agriculteurs engagés dans le mouvement d'« Agriculture de Conservation des sols » en Région Wallonne (Belgique). L'agriculture de conservation vise à restaurer ou à maintenir la fertilité des sols ainsi qu'à enrayer l'érosion de ces derniers par la mise en œuvre de techniques telles que la réduction du travail du sol (techniques de non-labour), la couverture permanente des sols et les rotations de cultures appropriées. Ce modèle agricole se développe aujourd'hui dans de nombreux pays et gagne peu à peu la reconnaissance d'institutions publiques. L’interprétation du processus de transition vers l’agriculture de conservation reste néanmoins ambiguë, car cette dernière s’inscrit dans des perspectives diverses et parfois contradictoires : initiative technique, économique, agronomique ou encore écologique. Le cadre analytique choisi est celui de la théorie multi-niveaux de la transition, considérant l'agriculture de conservation comme une niche d'innovation « par retrait », se construisant par décrochages successifs du labour en tant qu'institution du régime de l'agriculture conventionnelle. À travers les trajectoires de trois agriculteurs engagés dans des techniques de non-labour, il s'agira de saisir les modalités d'articulation et de désarticulation entre l'agriculture de conservation, d'une part, et le labour et l'agriculture conventionnelle, d'autre part. Cette analyse permettra de comprendre dans quelles perspectives les agriculteurs inscrivent leur pratique de l'agriculture de conservation ainsi que la position qu'ils lui donnent par rapport à l'agriculture conventionnelle. [less ▲]

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See detailLe corps dans la médecine des moines au Moyen Age : autour de quelques Régimes de santé monastiques
Xhayet, Geneviève ULg

in Hüe, Denis; De Gramont, Jérôme; Baillaud, Bernard (Eds.) Corps et encyclopédies : Actes du colloque de Cerisy, 10-14 septembre 2008 (2013)

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See detailUnsupervised Learning Of Predictive Parts For Cross-object Grasp Transfer
Detry, Renaud ULg; Piater, Justus

in IEEE/RSJ International Conference on Intelligent Robots and Systems (2013)

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See detailProfiles of pregnancy-associated glycoprotein (PAG) concentrations during gestation in swamp buffalo
Van Hahn, N; Viet Linh, N; Melo de Sousa, Noelita ULg et al

in Proceedings of the 10th World Buffalo Congress and 7th Asian Buffalo Congress (2013)

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See detailAir CO2 in Comblain-au-Pont Cave (Belgium). Relationships with soil CO2 and open air meteorology
Godissart, Jean; Ek, Camille ULg

in International Congress of Speleology Proceedings (2013)

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See detailÉmancipation intellectuelle et émancipation politique. Entretien avec Jacques Rancière
Janvier, Antoine ULg; Cukier, Alexis; Lavergne, Cécile

in Cukier, Alexis; Lavergne, Cécile (Eds.) Actualité des concepts d'aliénation et d'émancipation (2013)

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See detailDevelopment of organic farming in Wallonia : past, present and perspectives
Burny, Philippe ULg; Debode, Frédéric

in Lorencowicz, Edmund; Uziak, Jacek; Huyghebaert, Bruno (Eds.) VI International Scientific Symposium "Farm Machinery and Processes Management in Sustainable Agriculture" : Symposium Proceedings (2013)

Organic farming is today fully recognized as an alternative to conventional agriculture and its problems (water and air pollution, large use of pesticides and possible impacts on human health, vegetal and ... [more ▼]

Organic farming is today fully recognized as an alternative to conventional agriculture and its problems (water and air pollution, large use of pesticides and possible impacts on human health, vegetal and animal diseases, overproduction, ..) and is clearly supported by the Common Agricultural Policy and its "greening". Belgian (and Walloon) agriculture is an intensive one, with a high "labour force/agricultural area" ratio and high yields thanks to good soils, but also the use of large quantities of inputs like fertilizers and pesticides. However, organic farming increased in importance during the last years and th Walloon regional government has just launched a development plan in June 2013. So, this paper aims to analyse the evolution of organic farming in Wallonia and to present the goals and the measures of the new development plan. [less ▲]

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See detailTransboundary hydraulic modelling of extreme floods in the Meuse River
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Pirotton, Michel ULg et al

in The Wise Find Pleasure in Water (2013)

Detailed inundation modelling was conducted along a 100 km long transnational section of the Meuse River (in Belgium and The Netherlands), using very similar models for the whole computation (2D unsteady ... [more ▼]

Detailed inundation modelling was conducted along a 100 km long transnational section of the Meuse River (in Belgium and The Netherlands), using very similar models for the whole computation (2D unsteady models). As a result, damping of the flood waves could be quantified and the possible relevance of using a steady-state approach could be assessed. The new detailed 2D hydraulic simulations have demonstrated that only a very limited damping of the flood waves occurs along the simulated reaches. From the perspective of the variation in peak discharge, the study concludes that running the hydraulic model in steady mode makes perfectly sense. Nonetheless, the steady computations lead to extensive overestimations of the inundated extent and of the stored volume in the floodplains. The 2D unsteady model constitutes also a tool of primary interest, which is readily available to design and evaluate protection measures for flood-prone areas such as in the city of Liege. [less ▲]

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See detailDepositional facies settings and geochemical proxies of Late Devonian sequences in northwestern Thailand.
Königshof, Peter; Racki, G.; Savage, N. et al

in ICPSEA3 2013: The 3rd International Conference on the Palaeontology of South-East Asia. Abstract book (2013)

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See detailOrganic Rankine Cycle Systems: A Techno-Economic Overview
van den Broeck, Martijn; Quoilin, Sylvain ULg; Declaye, Sébastien ULg et al

in Proceedings of EMC 2013 (2013)

The potential of organic Rankine cycle (ORC) technology for waste heat recovery in industry is discussed. This survey includes a market overview, a discussion of the key differences with steam turbine ... [more ▼]

The potential of organic Rankine cycle (ORC) technology for waste heat recovery in industry is discussed. This survey includes a market overview, a discussion of the key differences with steam turbine technology, some main selection issues (components and working fluid) and an outlook on the future of the technology. [less ▲]

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See detailSoft-bottom macrobenthos monitoring in the framework of the STARE-CAPMED program
Donnay, Annick ULg; Pelaprat, Corinne; Fréjefond, Charlène et al

in CIESM Congress Proceedings n*40 (2013)

STARE-CAPMED is a research program set up by the Stareso research station (Calvi, Corsica). Its aim is to improve the understanding of processes by which anthropogenic activities have adversed effects on ... [more ▼]

STARE-CAPMED is a research program set up by the Stareso research station (Calvi, Corsica). Its aim is to improve the understanding of processes by which anthropogenic activities have adversed effects on the functioning of Calvi Bay coastal ecosystems. One of its work packages is the monitoring of soft-bottom macrobenthos along 5 gradients of potential anthropogenic pressures. First results suggest that, before summer (summer is the period where man-driven impacts are expected to be stronger due to high tourist frequentation) these sources of potential anthropogenic pressures perturb soft-bottom macrobenthos assemblages. [less ▲]

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See detailClassification of MCI and AD patients combining PET data and psychological scores
Segovia-Román, Fermín ULg; Bastin, Christine ULg; Salmon, Eric ULg et al

in International Workshop on Advances in Regularization, Optimization, Kernel Methods and Support Vector Machines: theory and applications (2013)

This study’s aim was to measure the advantages of using psychological test data in the automatic classification of functional brain images in order to assist the diagnosis of neurodegenerative disorders ... [more ▼]

This study’s aim was to measure the advantages of using psychological test data in the automatic classification of functional brain images in order to assist the diagnosis of neurodegenerative disorders such as Alzheimer’s disease (AD). Several computer-aided diagnosis systems for AD based on PET images were developed. Some of them used psychological scores beside the image data in the classification step and others did not. The results show the ones that take into account the psychological scores achieve higher accuracy rates. [less ▲]

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See detailPastoral dynamics in the region of Diffa (Niger) : a descriptive analysis of livestock capital
Laouali, Abdoulkadri ULg; Rouchet, François ULg; Lebailly, Philippe ULg et al

in Dusan Kovacevic, Kovacevic (Ed.) Book of proceedings - Fourth International Scientific Symposium „Agrosym 2013“ (2013)

Located between the desert zone in the North and the Sahelian zon in the South, the Region of Diffa is a pastoral area par excellence in Niger. Breeding, witch a highly diversified livestock, is the ... [more ▼]

Located between the desert zone in the North and the Sahelian zon in the South, the Region of Diffa is a pastoral area par excellence in Niger. Breeding, witch a highly diversified livestock, is the dominant economic activity in the region. It occupied 95% of the population and contributes annually to 55% in the formation of the region gross domestic production. For understanding the pastoral dynamic a survey of 300 households (150 households witch herd sedentary and 150 witch herd mobile) was conducted during the first semester of 2012. The data analysis is performed from a herd of 15,618 animal heads consisting mainly of small ruminants for both sedentary (72%) and mobile (52%). The herd structure (sedentary and mobile) by age and sex shows on the one hand, the males are early and systematically exploited, all species including, and the reproduction is carried out by a core of female spawners more less stable and dominated by young females, on the other hand. Comparative analysis of compositions and structures of the livestock by agro-ecological zone (Pastoral bowls zone; Komadougou River and Lake Chad zones) reveals zonal disparities particularly in the sedentary livestock system. [less ▲]

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See detailMagnetic fields in O stars
Nazé, Yaël ULg

in proceedings of "Putting A-stars into context" (2013)

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such ... [more ▼]

Over the last decade, large-scale, organized (generally dipolar) magnetic fields with a strength between 0.1 and 20 kG were detected in dozens of OB stars. This contribution reviews the impact of such magnetic fields on the stellar winds of O-stars, with emphasis on variability and X-ray emission. [less ▲]

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See detailInvestigation of the glucose metabolism of the embryonic and neonatal broiler chicks by injection of insulin
Franssens, L.; Lesuisse, J.; Koppenol, A. et al

in EAAP series (2013)

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See detailA new super-element for estimating the collision resistance of an inclined ship side
Buldgen, Loïc ULg; Le Sourne, Hervé; Rigo, Philippe ULg

in Advancements in Marine Structures : Proceedings of MARSTRUCT 2013, the 4th International Conference on Marine Structures, Espoo, Finland, 25th – 27th March 2013 (2013)

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See detailDes données de perception et de performance pour réguler un dispositif en ligne
Jacquet, Maud ULg; Georges, François ULg; Michiels, Laurence ULg et al

in Colloque scientifique international portant sur les TIC en éducation : bilan, enjeux actuels et perspectives futures (2013)

En 2010, pour la première fois en Communauté française de Belgique, un même cours de médecine vétérinaire a été proposé par un même enseignant à quatre universités. L’enseignant désigné pour cette ... [more ▼]

En 2010, pour la première fois en Communauté française de Belgique, un même cours de médecine vétérinaire a été proposé par un même enseignant à quatre universités. L’enseignant désigné pour cette expérience a bénéficié d’un accompagnement technopédagogique de l’IFRES (ULg) pour concevoir son cours. Dans cet article, nous décrirons le dispositif en ligne, nous présenterons l’usage que les apprenants en ont eu, leurs perceptions et leurs performances. L’objet de cette analyse est principalement d'offrir à l’enseignant des informations utiles pour réguler son cours. [less ▲]

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See detail"Europe-Amérique" / "Europe-Magazine": un hebdomadaire belge, organe de l'extrême-droite française, 1945-1960?
Lanneau, Catherine ULg

in Dard, Olivier (Ed.) Supports et vecteurs des droites radicales au XXe siècle (Europe-Amériques) (2013)

Issued under various titles between 1944 and the early 1980’s, the Belgian weekly Europe Amérique / Magazine showed itself at first rather eclectic in the choice of its writers and the articles it ... [more ▼]

Issued under various titles between 1944 and the early 1980’s, the Belgian weekly Europe Amérique / Magazine showed itself at first rather eclectic in the choice of its writers and the articles it published. It had soon more and more pronounced leanings towards the far right and specialized itself in a vociferous form of anticommunism, the rehabilitation of Vichy regime and strong criticism of the Republic as the brain child of a biased vision of the Resistance. It opened its columns to avowed rightist French journalists ear-marked for theit conduct during WW2 and / or having their names on the black list of the Comité National des Ecrivains. After describing the inner story of the weekly, the causes and consequences of its two prohibitions in France (1946-1948, 1949-1953), this article deals with its strongly Vichy tainted staff of French writers (Alfred Fabre-Luce, Louis Guitard, Louis Rougier, Pierre Dominique, Albert Paraz, Lucien Rebatet...) and its closeness with the well-known Paroles Françaises, Ecrits de Paris and Rivarol. [less ▲]

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See detailInfluence of the frequency for the numerical modeling of the parasitic capacitances of wound magnetic components
De Greve, Zacharie; Lehti, Leena; Deblecker, Olivier et al

in 9th International Symposium on Electric and Magnetic Fields (EMF2013) (2013)

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See detailDevelopment of organic farming in Wallonia
Burny, Philippe ULg; Debode, Frédéric

in Bran, Florina; Ioan, Ildiko; Maruntelu, Tudor-George (Eds.) et al 5th International Conference "Ecological performance in a competitive economy", Bucharest 7-8 March 2013 : proceedings (2013)

Belgium is a highly densely populated country where agricultural methods usually consume large quantities of inputs, including pesticides and chemical fertilizers. However, organic farming is practiced ... [more ▼]

Belgium is a highly densely populated country where agricultural methods usually consume large quantities of inputs, including pesticides and chemical fertilizers. However, organic farming is practiced since many years and has registered a significant development during the last years, reaching 7% of the number of farmers in Wallonia (South of Belgium) and 7% of the Walloon agricultural area. Presently, the Walloon Minister for Agriculture strongly supports this sector and has proposed a strategic development plan of organic farming, the target being to reach 14% of the Walloon agricultural area in 2020. This paper presents and discusses the situation of organic farming in Wallonia and the main features and challenges of the new strategic development plan. [less ▲]

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See detailEtude tribologique sur des lubrifiants solides à haute température dans des machines de détente
Legros, Arnaud ULg; Zaïdi, Hamid; Diny, Mouad et al

in La tribologie : fondamentaux et applications complexes (2013)

Dans le cadre de la conception d’un expanseur dédié à la récupération d’énergie à l’échappement d’un moteur à combustion interne, une étude sur des lubrifiants solides a été menée afin de choisir le ... [more ▼]

Dans le cadre de la conception d’un expanseur dédié à la récupération d’énergie à l’échappement d’un moteur à combustion interne, une étude sur des lubrifiants solides a été menée afin de choisir le couple de matériaux adéquat pour le joint principal de la machine. Ce joint doit assurer à la fois une fonction d’étanchéité interne et limiter ainsi les pertes par fuites internes de l’expanseur. Il doit également présenter un coefficient de frottement la plus faible possible afin de réduire les pertes par friction. Ce joint est en effet sollicité par des contraintes en frottement plan dans un environnement sous vapeur d’eau à des températures pouvant atteindre 250°C. Ces températures rendent complexe l’utilisation d’huile et le recours à des matériaux auto lubrifiants est dès lors l’unique solution. [less ▲]

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See detailPerceptual andMotor Inhibition in ADHD:Evidence for a specific impairment?
Catale, Corinne ULg; Geurten, Marie ULg; Lejeune et al

in Abstracts book (2013)

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004 ... [more ▼]

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004; Nassauer & Halperin, 2003). Following the perceptual versus motor dissociation proposed by Nassauer and Halperin (2003), we studied perceptual and motor inhibition in children with AttentionDeficit andHyperactivity Disorder (ADHD). Participants and Methods: Sixteen 7-12 years old children with ADHD and 30 matched control children were administered a version of the Conflict Resolution task (Nassauer & Halperin, 2003) adapted for children. In this task, the perceptual inhibition task required the children to respond to the direction of a dog (running towards the left or the right) while ignoring its location (left or right) on a computer screen. In the motor inhibition task, the children had to press a key corresponding to the opposite direction of a centrally running dog. Results: Comparisons analyses of inhibition performances between ADHD children and matched controlled subjects showed that ADHD children performed significantly less accurately for stimulus-stimulus characteristic conflicts (i.e., perceptual inhibition) than for stimulus- response conflicts (i.e., motor inhibition), which suggests a specific impairment in perceptual inhibition in our group of ADHD children. Conclusions: In conclusion, this study supports the presence of two forms of inhibition which can be differentiated and specifically impaired in 7- to 12-year-old ADHD children. [less ▲]

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See detailQu'est-ce qu'une mutation religieuse ?
Pirenne-Delforge, Vinciane ULg; Scheid, John

in Bonnet, Corinne; Bricault, Laurent (Eds.) Panthée: Religious Transformations in the Graeco-Roman Empire (2013)

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See detailL'avènement des Hommes modernes en Belgique
Otte, Marcel ULg; Noiret, Pierre ULg

in Bodu, Pierre; Chehmana, Lucie; Klaric, Laurent (Eds.) et al Le Paléolithique supérieur ancien de l'Europe du Nord-Ouest (2013)

In Belgium, Palaeolithic research goes back to the early 19th century, in the wake of mining and quarry work. Geology and paleontology developed early and rapidly and were economically important. As a ... [more ▼]

In Belgium, Palaeolithic research goes back to the early 19th century, in the wake of mining and quarry work. Geology and paleontology developed early and rapidly and were economically important. As a result, the earliest human history was reconstructed here entirely independently, by defining the Mousterian (Engis, 1830), Aurignacian (Montaigle), Gravettian (Trou Magrite) and Magdalenian (Chaleux) periods. Belgium, due to its central position, is in addition particularly representative of the wave of "modernity" that suddenly was adopted across northwest Europe, overlying a highly diverse and innovative cultural base during the time of the Neandertals. At this point in time, as in others, Belgium played the role of intermediary and incubator between the British Isles and the Rhineland, extending as far as the Loire. [less ▲]

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See detailStil und Stilisierung bei Joseph Roth
Küpper, Achim ULg

in Hoffmann, Nora; Shchyhlevska, Natalia (Eds.) Joseph Roth als Stilist (2013)

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See detailLa vie terminologique de l’énonciation
[Lttr 13]; Badir, Sémir ULg; Polis, Stéphane ULg et al

in Dufaye, Lionel; Gournay, Lucie (Eds.) Benveniste après un demi-siècle, regards sur l'énonciation aujourd'hui (2013)

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See detailL’imaginaire linguistique des historiens de la littérature, en France et en périphéries
Provenzano, François ULg

in Moussa, Sarga (Ed.) Le XIXe siècle et ses langues (2013)

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See detailResident lung CD11b+Ly6C- dendritic cells are responsible for allergic airway sensitization to house dust mite in mice
Mesnil, Claire ULg; Sabatel, Catherine ULg; Marichal, Thomas ULg et al

in Proceeding of International Congress of Immunology 2013 (2013)

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See detailEmploi des types de subordination dans un corpus ltin
Denooz, Joseph ULg

in Bodelot, Collette (Ed.) Morphologie, syntaxe et sémantique des subordonnants (2013)

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See detailComment favoriser la régulation interactive lors d’activités de résolution de problèmes en petits groupes ?
Demonty, Isabelle ULg; Dupont, Virginie ULg; Fagnant, Annick ULg

in Congrès international. Actualité de la recherche en éducation et en formation. AREF 2013 (2013)

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See detailShaking table tests on unreinforced load-bearing masonry walls - Comparison with simple rocking models
Mordant, Christophe ULg; Dietz, Matt; Degée, Hervé ULg

in ECCOMAS Thematic Conference - COMPDYN 2013: 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference (2013)

Assessment of the overall seismic performances of multi-storey unreinforced masonry structures requires an appropriate characterization of the behaviour of their structural components, in particular when ... [more ▼]

Assessment of the overall seismic performances of multi-storey unreinforced masonry structures requires an appropriate characterization of the behaviour of their structural components, in particular when these are subjected to a dynamic ground motion input. In order to develop a better understanding on this issue and in a further perspective of investigating the consequences of the presence of 1 cm thick rubber elements used for improving the sound-proofing performances of the building, shaking table tests have been carried out in the framework of the European project SERIES. Four single walls were tested. These were built with high resistance thin-bed layered clay masonry with empty vertical joints. Two of them had an aspect ratio close to 1, while the other two were close to 0.4. One wall of each aspect ratio included rubber devices at its bottom and top to enable comparisons and conclusions about the influence of rubber on the wall behaviour. The test results were then partially compared to results obtained with a theoretical rocking model considering the wall as a rigid body. The results summarized in the present contribution evidence a significant rocking behaviour for the highest input acceleration levels. Characterization of this behaviour is however strongly dependent on the aspect ratio of the wall and on the presence or not of rubber devices in terms of natural frequencies, damping, dynamic amplifications and progressive damage with increasing acceleration levels. It is also showed that the theoretical rocking predictions are in good agreement with the experimental results for high acceleration levels, while the behaviour is closer to the one of a cantilever for the lower levels. It is finally evidenced that, in presence of acoustic rubber devices, amplitudes of the rocking motion are increased but with a more limited damaging of the wall because of the capacity of the rubber to absorb the impact energy. Results of this study on single walls are expected to be further extended to global masonry structures, account taken for the influence of actual boundary conditions of the wall. [less ▲]

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