References of "Scientific congresses and symposiums"
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See detailOn the circular polarisation of light from axion-photon mixing
Payez, Alexandre ULiege; Cudell, Jean-René ULiege; Hutsemekers, Damien ULiege

in Alimi, Jean-Michel; Füzfa, André (Eds.) INVISIBLE UNIVERSE: Proceedings of the Conference. AIP Conference Proceedings 1241. (2010)

From the analysis of measurements of the linear polarisation of visible light coming from quasars, the existence of large-scale coherent orientations of quasar polarisation vectors in some regions of the ... [more ▼]

From the analysis of measurements of the linear polarisation of visible light coming from quasars, the existence of large-scale coherent orientations of quasar polarisation vectors in some regions of the sky has been reported. Here, we show that this can be explained by the mixing of the incoming photons with nearly massless pseudoscalar (axion-like) particles in extragalactic magnetic fields. We present a new treatment in terms of wave packets and discuss its implications for the circular polarisation. [less ▲]

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See detailDevelopment of a new genetic evaluation model for carcass quality based on crossbred performances of Piétrain boars in the Walloon Region of Belgium
Dufrasne, Marie ULiege; Hammami, Hedi ULiege; Jaspart, Véronique et al

in Proceedings of the 9th World Congress on Genetics Applied to Livestock Production (2010)

In context of the development of the genetic evaluation system of Piétrain boars for crossbred performances, a genetic evaluation model was developed for the estimation of genetic merit of boars for ... [more ▼]

In context of the development of the genetic evaluation system of Piétrain boars for crossbred performances, a genetic evaluation model was developed for the estimation of genetic merit of boars for backfat thickness (BF) and meat percentage (%meat). The model developed was a random regression model using linear splines on age which knots at 175, 200 and 250 days. Variance components were estimated by restricted maximum likelihood and Gibbs sampling. Estimated heritability from 150 to 300 days increased from 0.56 to 0.75 for BF and from 0.55 to 0.69 for %meat. Genetic correlation between BF and %meat varied between -0.90 and -0.93 from 150 to 300 days. According to the study of residuals, the developed model was considered to fit well the data especially between 175 and 250 days of age. [less ▲]

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See detailFinite element analysis of strongly nonlinear phenomena in deployable flexible systems
Bruls, Olivier ULiege; Hoffait, Sébastien ULiege; Cugnon, Frederic et al

in 1st ESA Multibody Dynamics Workshop on Multibody Dynamics for Space Applications, Noordwijk, 2010 (2010)

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See detailReDrop – Vorhersage von Extraktionskolonnen durch Lösung der Tropfenpopulationsbilanzen
Kopriwa, Nicole; Ayesterán, J; Buchbender, Florian et al

Conference (2010)

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See detailMontrer, calculer, explorer, analyser. Ce que l'informatique fait (faire) à l'analyse qualitative
Lejeune, Christophe ULiege

in Recherches Qualitatives (2010), 9

Au delà de ses implications techniques, l'informatisation de l'analyse de texte soulève des questions de méthode. Après un recensement des motivations à recourir à des logiciels pour assister l'analyse de ... [more ▼]

Au delà de ses implications techniques, l'informatisation de l'analyse de texte soulève des questions de méthode. Après un recensement des motivations à recourir à des logiciels pour assister l'analyse de données textuelles, nous proposons une typologie distinguant cinq fonctionnalités proposées par ces outils : la lexicométrie, les concordances, les automates, les outils réflexifs et les dictionnaires. Chacune de ces fonctionnalités éclaire les textes d'une manière originale (et partielle). Rapportée à ses usages attestés, chacune de ces potentialités articule des présupposés épistémologiques spécifiques. En définitive, le choix d'un logiciel caractérise autant une démarche de recherche que l'inscription dans un paradigme. [less ▲]

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See detailMicrochirurgie cordale et implantation d'acide hyaluronique estérifié: résultats à court et à long terme
FINCK, Camille ULiege

in Journal of Voice (2010), 24(5), 626-635

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See detailCassandre, un outil pour construire, confronter et expliciter les interprétations
Lejeune, Christophe ULiege

in Beauvais, Martine; Clénet, Jean (Eds.) Actes du 2ème colloque international francophone sur les méthodes qualitatives (2010)

Cassandre est un logiciel libre d'analyse de textes, adossé à la plateforme collaborative Hypertopic. Fruit de la convergence épistémologique entre l'analyse qualitative (en sciences humaines) et le Web ... [more ▼]

Cassandre est un logiciel libre d'analyse de textes, adossé à la plateforme collaborative Hypertopic. Fruit de la convergence épistémologique entre l'analyse qualitative (en sciences humaines) et le Web socio-sémantique (en informatique), cet outil accompagne la construction semi-automatique du (des) cadre(s) d'analyse du (des) chercheur(s). Une série de comptes-rendus d'utilisation (tantôt collectifs tantôt isolés, plutôt inductifs ou hypothético-déductifs) attestent des apports de l'outil : génération d'un journal de bord, économie cognitive et temporelle, flexibilité, aide au travail en équipe et multiplication des entrées dans le matériau. Ces usages témoignent également des inévitables limites afférentes à l'usage d'un logiciel dans une approche qualitative. En définitive, on plaide donc pour un recours raisonné à Cassandre, comme à tout autre logiciel. [less ▲]

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See detailL’informatisation du Französisches Etymologisches Wörterbuch : quels objectifs, quelles possibilités?
Renders, Pascale ULiege

in Iliescu, Maria; Siller-Runggaldier, Heidi; Danler, Paul (Eds.) Actes du XXVe Congrès International de Linguistique et de Philologie Romanes (Innsbruck, 3-8 septembre 2007) (2010)

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See detailA subcritical damage model for clay as a two-scale material
François, Bertrand ULiege; Dascalu, Cristian

in CLAYS IN NATURAL & ENGINEERED BARRIERS FOR RADIOACTIVE WASTE CONFINEMENT (2010)

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See detailOrbital dynamics characteristics of a QB50 CubeSat performing atmospheric reentry
Asma, C.; Naviaux, J.; Kerschen, Gaëtan ULiege et al

in Proceedings of the AIAA Atmospheric Flight Mechanics Conference (2010)

The QB50 mission has the scientific objective to study the temporal and spatial variations of a number of key parameters in the lower thermosphere with a network of 50 CubeSats, each performing identical ... [more ▼]

The QB50 mission has the scientific objective to study the temporal and spatial variations of a number of key parameters in the lower thermosphere with a network of 50 CubeSats, each performing identical in-situ measurements. One of these 50 CubeSats, the von Karman Institute Atmospheric Re-Entry CubeSat, will further be equipped by a thermal protection system and a dedicated sensor pack to study the atmospheric re-entry. This paper is devoted to the orbital dynamics analysis performed for the QB50 mission and the atmospheric re-entry trajectory analysis for a double unit CubeSat. The main focus is on the sensitivity of the results on atmospheric models, drag coefficient and the launch date. Typical atmospheric re-entry trajectories, including the stagnation point heat flux values are calculated using three different methods for three different scenarios. The predicted heat flux values will be used in the preliminary design of the thermal protection system of the VKI atmospheric re-entry CubeSat, which is to be the first CubeSat to be used as an atmospheric re-entry demonstrator. [less ▲]

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See detailProblematic of the Pelagia noctiluca outbreaks in the Bay of Calvi (Corsica)
Hecq, Jean-Henri ULiege; Goffart, Anne ULiege; Collignon, Amandine ULiege et al

in Proceedings of the 39th CIESM Congress (2010)

The interannual variations of the Schyphozoan jellyfish Pelagia noctiluca is estimated by weekly measurements in the Bay of Calvi (Corsica) from 2003. The mean annual abundance reaches a dramatic maximum ... [more ▼]

The interannual variations of the Schyphozoan jellyfish Pelagia noctiluca is estimated by weekly measurements in the Bay of Calvi (Corsica) from 2003. The mean annual abundance reaches a dramatic maximum in 2006. The medusae appear by migration of active swarms on the shelf and at the external limit of the Bay. Degraded individuals drift as passive swarms, throughout inner side of the Bay and embayments. [less ▲]

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See detailFish lateral system is required for accurate control of shoaling behaviour
Faucher, Karine ULiege; Parmentier, Eric ULiege; Becco, Christophe ULiege et al

Conference (2010)

In teleost fishes, the lateral system is assumed to contribute, among other roles, to maintaining schooling behaviour. Sight is also assumed to play a role in schooling, as fish with a cut lateral line do ... [more ▼]

In teleost fishes, the lateral system is assumed to contribute, among other roles, to maintaining schooling behaviour. Sight is also assumed to play a role in schooling, as fish with a cut lateral line do not stop schooling unless they are also blinded. This conclusion, however, was based on experiments where only the trunk lateral line was inactivated, leaving the head lateral system intact. Here the aim was to test how inactivation of the whole lateral system affects the fish shoaling behaviour. Groups of firehead tetras, Hemigrammus bleheri, were video-recorded before and after inactivation of their whole lateral system with aminoglycoside antibiotics (and also in sham-treated specimens). Shoaling behaviour was characterized by: nearest distance to the first, second, and third neighbour, shoal radius, shoal order parameter, and the number of collisions between individuals. SEM observations showed damage to most superficial neuromasts as a result of antibiotic treatment. Importantly, the antibiotic-treated fish proved unable to maintain a shoal. After the end of the treatment, however, they recovered both a normal tissue morphology and normal shoaling behaviour within about a month. The lateral system is thus more crucial to shoaling behaviour than previously believed. [less ▲]

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See detailFriction coefficients evaluation for steel thixoforging
Pierret, Jean-Christophe ULiege; Rassili, Ahmed ULiege; Vaneetveld, Grégory ULiege et al

in Proceedings of The 13th Esaform Conference on Material Forming (2010) - semi-solid processing (2010)

Since the first works on thixoforming, lot of studies have been performed all over the world and the behaviour of the globular semi-solid slurry is now quite well understood. This knowledge had lead to an ... [more ▼]

Since the first works on thixoforming, lot of studies have been performed all over the world and the behaviour of the globular semi-solid slurry is now quite well understood. This knowledge had lead to an industrialisation of the technology for low melting point alloys as aluminium or magnesium. For high melting point alloys as steel, this industrialisation is still a wish but seems closer each year. In the aim of this development of the process, it is important to be able to accurately represent the behaviour of the slurry during thixoforming. In this goal, lot of constitutive models has been proposed during the last years. However, until now there isn’t any study about the friction in the case of thixoforming. This knowledge is needed as friction has an important effect on the flow of the slurry during the shaping. The aim of this work is so to propose a quantification of the friction coefficients for the thixoforming technology thanks to experiments on a dedicated tool and comparison with simulations run on the finite elements code Forge2008©. The friction law is a Coulomb limited Tresca one. [less ▲]

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See detailMémoire prospective et métacognition dans le vieillissement normal
Bastin, Christine ULiege; Smith, Sarah; D'Ydewalle, Géry et al

in Proceedings du XIème Colloque International sur le Vieillissement Cognitif (2010)

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See detailSpecies effect on the water use efficiency of a mixed forest of beech (Fagus sylvatica L.), Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and silver fir (Abies alba Mill.) in Belgium Ardennes
Soubie, Rémy; Heinesch, Bernard ULiege; Aubinet, Marc ULiege et al

Poster (2010)

Induced by climate change, intensity and frequency of droughts should be more important for the next century. How does water availability affect the physiology of woody plants at the species and stand ... [more ▼]

Induced by climate change, intensity and frequency of droughts should be more important for the next century. How does water availability affect the physiology of woody plants at the species and stand scale? Carbon and water vapour fluxes measurements of a mixed forest (deciduous and coniferous) were performed for over ten years by the eddy covariance method in Belgian Ardennes (Aubinet et al, 2001) as a part of the CarboEurope project. Whereas carbon fluxes have been analyzed in detailed and good estimations of the Net Ecosystem Exchange (NEE) and Gross Primary Production (GPP) were obtained, a thorough analysis of water vapour fluxes remains to be done. Improving analysis of water vapour fluxes and monitoring species transpiration will contribute to the estimation of the water use efficiency, WUE, at both the species and stand scale. The WUE well characterizes the vegetation productivity and ecosystem response to environmental factors. It also allows evaluating the sensitivity of temperate woody species to drought. The species concerned are beech (Fagus sylvatica L.), Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and silver fir (Abies alba Mill.). Since summer 2009 we monitor and analyze each species water use by measuring sap flow with the thermal dissipation method (Granier, 1987). Results at the species level will then be upscaled and compared to stand water vapour fluxes measurements obtained by the eddy covariance methodology. Transpiration of each species will be analyzed in relation with their own phenological and ecophysiological attributes, ecosystem soil and atmospheric conditions, to clarify among others their behaviour in case of water deficit. Data are actually analysed, the presented results will concern the 2009, and a part of 2010 growing season. [less ▲]

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See detailDynamique spatiale de rejet des déchets au sein des fourmilières Myrmica rubra
Diez, Lise; Lejeune, Philippe ULiege; Detrain, Claire

Conference (2010)

La vie en société de milliers d’individus apparentés dans un milieu confiné augmente le risque de transmission des pathogènes. Par le biais de comportements hygiéniques collectifs tels quel le rejet des ... [more ▼]

La vie en société de milliers d’individus apparentés dans un milieu confiné augmente le risque de transmission des pathogènes. Par le biais de comportements hygiéniques collectifs tels quel le rejet des déchets, les insectes sociaux ont développé des défenses spécifiques contre les pathogènes. Nous avons comparé la dynamique de rejet de différents types de déchets (cadavres, proies et morceaux de vermiculite) introduits dans des nids de Myrmica rubra. L’analyse vidéo, réalisée grâce à un programme original de suivi du déchet et de digitalisation des zones de couvain, a permis un suivi précis du déplacement de ces déchets au sein du nid. La vermiculite a été rapidement rejetée après 12 ± 4 minutes, les cadavres ont été éliminés après 139 ± 28 min et les proies ont été consommées puis rejetées après 17,3 ± 0,3 heures. L’analyse spatiale des déchets a montré un déplacement rapide des cadavres loin du couvain alors que les proies étaient fréquemment apportées près des larves pour la consommation. L’efficacité de la gestion des déchets a été testée par ailleurs en comparant la survie de colonies de fourmis ayant ou non la possibilité de rejeter leurs cadavres. La mortalité des adultes et des larves vivant dans des nids contraints de garder leurs cadavres est significativement supérieure à celle observée dans les colonies contrôles, confirmant l’importance de ce rejet pour la survie et le bon état sanitaire de la fourmilière. [less ▲]

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See detailExperimental modal analysis of nonlinear vibrating structures using nonlinear normal modes
Peeters, Maxime ULiege; Kerschen, Gaëtan ULiege; Golinval, Jean-Claude ULiege

in IV European Conference on Computational Mechanics, Paris, 2010 (2010)

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See detailVers un enrichissement raisonné de la rétroconversion du Französisches Etymologisches Wörterbuch (FEW)
Mazziotta, Nicolas ULiege; Renders, Pascale ULiege

in Dykstra, A.; Schoonheim, T. (Eds.) Proceedings of the 14th EURALEX International Congress (2010)

L'informatisation par rétroconversion du Französisches Etymologisches Wörterbuch (FEW) est en bonne voie et nous voudrions montrer en quoi elle est perfectible et comment, elle pourrait être améliorée ... [more ▼]

L'informatisation par rétroconversion du Französisches Etymologisches Wörterbuch (FEW) est en bonne voie et nous voudrions montrer en quoi elle est perfectible et comment, elle pourrait être améliorée. Nous présentons brièvement le FEW et la nécessité de le rendre exploitable par l'ordinateur, puis nous exposons les principes qui ont gouverné sa rétroconversion et en donnons un exemple détaillé. Ensuite, nous focalisons l'exposé sur la microstructure rétroconvertie des articles et l'enrichissement par annotation manuelle que nous préconisons. Nous synthétisons enfin le potentiel de cette dernière. [less ▲]

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See detailSpatio-temporal patterns of preys and wastes moved by ants within the nests
Diez, Lise; Lejeune, Philippe ULiege; Deneubourg, Jean-Louis et al

Poster (2010)

Living in society in a restricted and confined nest implies important organisational issues. Ants have to control food supply for the whole colony as well as nest defence but they also have to manage ... [more ▼]

Living in society in a restricted and confined nest implies important organisational issues. Ants have to control food supply for the whole colony as well as nest defence but they also have to manage everyday life tasks such as waste rejection. Within the nest, ants are faced with different items that have to be used or rejected regarding colony needs. We study whether they can discriminate between three types of items (building material, nestmate cadaver or prey) and accordingly adapt the spatio-temporal distribution of these items. Therefore, we used colonies of the ant Myrmica rubra settled in a 2-dimensional space and introduced different items in the nest centre. We show that each item triggers a specific cascade of behaviour. We observed important differences in rejection time: building items were removed within a few minutes and cadavers after a few hours while preys could be kept in the nest for a day or more. Furthermore, the movement of items by ants leads to specific spatio-temporal patterns. Building items were removed with a straight trajectory from the centre to the exit of the nest. Ant cadavers that could bear pathogens showed a trajectory avoiding and moving away from larvae that are potentially more sensitive to diseases. The moving of preys headed an oscillating pattern: these items were alternatively taken on larvae for consumption and then moved away from them, until final rejection. This specific pattern may be due to the coupled effects of groups of ants acting alternatively to feed larvae and reject waste. In the case of cadavers and building items, only undertaking ants may be active. These results suggest that each ant is able to discriminate and interact with each other leading at the collective level to a complex cascade of behaviour. [less ▲]

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See detailDeveloping the HRH Policy and Plan in Mali
Paul, Elisabeth ULiege; Samaké, Salif

Conference (2010)

Context: Deficient HRH management – especially insufficient training and motivation, and adverse distribution of qualified staff countrywide, at the expense of poor and remote areas – has been identified ... [more ▼]

Context: Deficient HRH management – especially insufficient training and motivation, and adverse distribution of qualified staff countrywide, at the expense of poor and remote areas – has been identified for over a decade as one major constraint for the implementation of Mali's national health policy. Main objective: The HRH policy aims to define a coherent framework for the ministry of health (MoH) and its partners in order to ensure the harmonious development, distribution, management and motivation of health staff so as to ultimately improve health results. The policy is translated into an operational plan dealing specifically with training, recruitment, motivation, and career management. Methodology: The HRH policy and plan were developed by a core team under the leadership of the Planning Department of the MoH, with the involvement from other departments of the MoH, the ministries in charge of finance (MoF) and civil service (MoCS), and donors. After analyzing existing studies and data, the diagnosis over the major problems to be tackled was done. This allowed identifying the main orientations of the policy, which were then translated into strategies and interventions, and then costed. Once the policy and plan have been drafted by the core team, they have been circulated to all departments and partners and discussed in several meetings with different stakeholders at central level. After integrating comments from these meetings, the MoH organized a validation workshop with very broad participation (including the operational level, private sector, and civil society) so as to ensure ownership. Final amendments were negotiated with the MoF and MoCS in order to be adopted as a national policy by the Counsel of Ministers by the end of 2009. Results: The HRH policy and plan now benefit from wide political support by major stakeholders. Yet, implementation still has been delayed because of the management modalities at operational level still need to be definitively agreed upon. Conclusion: The inclusive development process has been necessary to move on with the complex and highly sensitive issue of HRH management, and to get the support from MoF, MoSC and donors who are supposed to contribute to its financing. [less ▲]

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See detailCase study of mixed-use high-rise location at the Greater Paris scale
Saint-Pierre, Claire; Becue, Vincent; Diab, Youssef et al

in Brebbia, C. A.; Hernandez, S.; Tiezzi, E. (Eds.) The Sustainable City VI (2010)

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See detailAnts’ survival and waste management in Myrmica rubra nests
Diez, Lise; Lejeune, Philippe ULiege; Detrain, Claire

Poster (2010)

Sociality increases risks of disease transmission as genetically related individuals live in a confined environment. Therefore, social insects developed specific defences against pathogens by showing ... [more ▼]

Sociality increases risks of disease transmission as genetically related individuals live in a confined environment. Therefore, social insects developed specific defences against pathogens by showing hygienic behaviours such as the rejection of cadavers and other wastes. We investigated if the undertaking and waste management is actually an efficient way of increasing ants’ survival and of limiting pathogens transmission. First, we observed the survival curve of ant colonies that were prevented from rejecting their dead nestmates outside the nest. Colonies that were forced to keep their dead inside the nest showed increased mortality of both adults and larvae in comparison to control nests, confirming that undertaking is an effective way for improving colony’s survival. Then, we compared the rejection dynamics of single waste items (ant cadavers, preys and clay pellet) introduced into ant nests. Clay pellets were quickly rejected within 12 ± 4 minutes, cadavers were dumped outside after 139 ± 28 min and preys were eaten and rejected only after 17.3 ± 0.3 hours. Spatial localisation inside the nest also differs between different items, as most cadavers stayed far from ants’ aggregate and larvae while preys were long-eaten close to larvae and inside ants’ aggregate. These results show that cadavers and preys are managed differently before becoming contagious, thus preventing effectively pathogens transmission inside the nest. [less ▲]

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See detailLes lendemains des guerres burgondo-liégeoises du XVe siècle
Marchandisse, Alain ULiege; Coura, Geneviève

in Pernot, François; Toureille, Valérie (Eds.) Lendemains de guerre ... : de l'Antiquité au monde contemporain : les hommes, l'espace et le récit, l'économie et le politique (2010)

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See detailDiarrhea and vomitting in a yorkshire terrier
Ramery, Eve ULiege; Papakonstantinou, Stratos; Pinilla, Manuel et al

Conference (2010)

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See detailEffets de la surface disponible et du type de sol sur les émissions gazeuses lors de l’élevage de truies gestantes
Philippe, François-Xavier ULiege; Cabaraux, Jean-François ULiege; Canart, Bernard et al

in 42èmes Journées de la Recherche Porcine (2010)

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See detail« L’ ‘altro’ Pulci : il Ciriffo Calvaneo e la collaborazione poetica »
Moreno, Paola ULiege

in Gigante, Claudio; Palumbo, Giovanni (Eds.) La tradizione epica e cavalleresca in Italia (XII-XVI sec.) (2010)

Detailed reference viewed: 62 (8 ULiège)
See detailDevelopment of quantitative methods to detect trace amounts of hazelnut and soy allergens in food
Dobson, Rowan ULiege; Fourdrilis, Séverine; Kirsch, Stéphanie ULiege et al

Poster (2010)

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See detailChronology of the Middle to Upper Palaeolithic Transition in Belgium
Pirson, S.; Haesaerts, P.; Semal, P. et al

Conference (2010)

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See detailLe régime juridique des "petits" contrats: questions choisies en matière de contrat de dépôt et de contrat d'entreprise
Kohl, Benoît ULiege; Grisard, Delphine ULiege; Salzburger, Romain ULiege

in Lecocq, Pascale; Engels, C. (Eds.) Chronique de droit à l'usage des juges de paix et de police (2010)

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See detailModelling Free-surface Flows and Highly Transient Mixed Flows: A 1D Three-phase Approach
Kerger, François ULiege; Archambeau, Pierre ULiege; Dewals, Benjamin ULiege et al

in Proc. 1st European IAHR Congress (2010)

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See detailAn almost Anti-Windup scheme for plants with magnitude, rate and curvature saturation
Forni, Fulvio ULiege; Galeani, Sergio; Zaccarian, uca

in American Control Conference (ACC 2010) (2010)

We address the anti-windup augmentation problem for plants with saturations on the magnitude, rate and curvature of the control input. To this aim, given an unconstrained closed-loop, we generate a ... [more ▼]

We address the anti-windup augmentation problem for plants with saturations on the magnitude, rate and curvature of the control input. To this aim, given an unconstrained closed-loop, we generate a slightly modified strictly proper controller for which the derivatives of the control signal are available and we solve the anti-windup problem for this modified control scheme (namely, an almost anti-windup for the original closed-loop). Based on this “almost” approach, we revisit an existing Model Recovery anti-windup solution for rate and magnitude saturated plants and then we extend the results to the case of rate, magnitude and curvature saturation, by providing a Model Recovery solution to this additional problem. An example illustrates the peculiarities and the effectiveness of the proposed solutions. [less ▲]

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See detailStudy of the surface and membrane properties of a bolaform surfactant issued from alkenyl D-xyloside
Deleu, Magali ULiege; Damez, Céline; Gatard, Sylvain et al

Poster (2010)

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See detailInstability and Overshoots of Solutions For A Class of Homogeneous Hybrid Systems By Lyapunov-like Analysis
Forni, Fulvio ULiege; Teel, Andrew

in 49th IEEE Conference on Decision and Control (cdc 2010) (2010)

For a class of homogeneous hybrid systems we present a generalization to the hybrid systems framework of Chetaev's theorem and we propose a set of Lyapunov-like conditions for studying instability of the ... [more ▼]

For a class of homogeneous hybrid systems we present a generalization to the hybrid systems framework of Chetaev's theorem and we propose a set of Lyapunov-like conditions for studying instability of the point x e = 0 and overshoots of solutions (namely when the norm of the solution vector x at some time instant exceeds the norm of the initial condition of x). Based on these results, we design a sum of squares algorithm that constructs a suitable Lyapunov-like function to fulfill such conditions. [less ▲]

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See detailDe la norme en classe de français : une problématique soumise aux effets des représentations ?
El Karouni, Salima; Lucchini, Silvia ULiege

in Dialogues et Cultures (2010), III(55), 1387-1396

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See detailL’édition pour la jeunesse en Belgique francophone : De la nécessité faite vertu à la mondialisation
Habrand, Tanguy ULiege

in Pinhas, Luc; Foucault, Jean; Manson, Michel (Eds.) L'édition de jeunesse francophone face à la mondialisation (2010)

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See detailStability For A Class of Homogeneous Hybrid Systems By Annular Lyapunov Analysis
Forni, Fulvio ULiege; Teel, Andrew

in 49th IEEE Conference on Decision and Control (cdc 2010) (2010)

For a class of homogeneous hybrid systems we present a set of annular Lyapunov-like conditions for inferring global pre-asymptotic stability of systems. Then, we prove that such conditions are mild ... [more ▼]

For a class of homogeneous hybrid systems we present a set of annular Lyapunov-like conditions for inferring global pre-asymptotic stability of systems. Then, we prove that such conditions are mild, namely, that each globally pre-asymptotically stable system must satisfy them. Based on these results, we design a sum of squares algorithm that constructs a suitable Lyapunov-like function to fulfill such annular conditions. Finally, based on recent results on homogeneous approximations of hybrid systems, we point out that such conditions can also be used to deduce local pre-asymptotic stability for a wider class of hybrid systems. [less ▲]

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See detailLa place du français dans les identités linguistiques des Belges issus de l’immigration
Lucchini, Silvia ULiege; Hambye, Philippe; Forlot, Gilles et al

in Dialogues et Cultures (2010), I(55), 389-402

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See detailA multiscalar quantitative approach to assess landscape dynamics and anthropogenic effects
Bogaert, Jan ULiege

in Program and Abstract Book of the 3rd China-Japan Colloquium of Mathematical Biology (2010)

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See detailF1FO ATP synthase mutants in Chlamydomonas: Stability and oligomycin resistance mediated by atypical Asa7 protein; interaction between chloroplastic and mitochondrial bioenergetics
Lapaille, Marie ULiege; Escobar-Ramírez, Adelma; Degand, Hervé et al

in Biochimica et Biophysica Acta (BBA) - Bioenergetics (2010), 1797(Supplement 1), 29

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See detailCO2 culling with Influenza Containment Systems (ICS)
Kamers, B.; Everaert, Nadia ULiege; Tona, K. et al

Poster (2010)

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See detailInfluence of Surface Effect On Nickel Micro Deep Drawing Process
Keller, Clément ULiege; Afteni, Mitica; Banu, Mihaela et al

in Proceeding of the Numiform 2010 conference (2010)

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See detailRemoval of Androgens and Estrogens from Water by Reactive Materials
Kai, Cai; Phillips, D. H.; Elliott, Chris et al

in 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010) (2010)

Nowadays, endocrine disruptor compounds in the water system have become a concern due to the risk of contamination to wild life and humans even at the nanogram level. Excess estrogens and androgens are a ... [more ▼]

Nowadays, endocrine disruptor compounds in the water system have become a concern due to the risk of contamination to wild life and humans even at the nanogram level. Excess estrogens and androgens are a major contributor group of endocrine compounds. Statistical surveys have shown that dairy farms contribute to over 90% of the total estrogens in the UK and US. An analytical system is being developed to assess the efficiency of reactive materials to remove target hormonal contaminants from dairy farm effluent. This can be achieved using reporter gene assays (RGAs) to detect low level steroid hormones. A preliminary study comparing the efficiency of granular activated carbon, zero-valent iron, and organoclay was carried out using bench-scale evaluations in negative control HPLC water. Their potential ability to remove testosterone and 17- beta -estradiol spiked at reported environmental levels was measured by androgenic and estrogenic luminescent reporter assay respectively. [less ▲]

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See detailSurgical Pleth Index to assess the anti-nociceptive component of general anaesthesia: Comparison with haemodynamic parameters and identification of confounding factors: 3AP3--3
HANS, Grégory ULiege; Bonhomme, V.; Maquoi, I. et al

in European Journal of Anaesthesiology (2010), 27(47), 50

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See detailSémiochimiques et danger - Les phéromones d'alarme
Verheggen, François ULiege

Conference (2010)

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See detailNovel HDAC/DNMT twin inhibitors interfere with angiogenesis
Shiva Shankar, Thammadihalli Veerasangaiah ULiege; Sulka, Béatrice; Blacher, Silvia ULiege et al

Poster (2010)

DNA methylation and histone deacetylation are two key epigenetic modifications that play central role in regulation of gene expression. Several studies have shown that histone deacetylases (HDAC) and DNA ... [more ▼]

DNA methylation and histone deacetylation are two key epigenetic modifications that play central role in regulation of gene expression. Several studies have shown that histone deacetylases (HDAC) and DNA methyltransferases (DNMT) inhibitors are potent antiangiogenic compounds. Though combination of HDAC and DNMT inhibitors are now being examined in clinical trials of hematological malignancies, very little work has been done to understand the effect of this combination on normal and tumoral angiogenesis. We have designed and tested a family of twin drugs with intrinsic HDAC and DNMT inhibitory activities in relevant models of angiogenesis in vitro (endothelial cells, pericytes and the 3D aortic ring assay) and in vivo (the chick chorioallantoic membrane assay). We have identified a lead compound having quantifiable antiangiogenic effect without cytotoxicity associated with increased global acetylation and decreased DNA methylation levels. This compound is presently used to develop effective approaches to treat cancer by modulating the process of angiogenesis. [less ▲]

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See detailLand conversion to industrialization and its impacts on household food security in Red River Delta, Vietnam
Nguyen Thi, Dien; Lebailly, Philippe ULiege; Vu Dinh, Ton

Conference (2010)

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and ... [more ▼]

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and clusters. This paper analyzes the complex impacts caused by industrialization on household food security. Both qualitative and quantitative methods were applied to investigate how land conversion process to industrial companies affected food security of different groups of peasant households in Hung Yen province, the most rapid industrialization province in Red River Delta of Vietnam. The study showed that industrialization and neo-liberalism affected household food security in three aspects: the lost of large agricultural land area which did not ensure stable jobs for peasants; the decline of living quality as a result of environmental pollution and high living costs; and the lost of household self reliance on food, with 77 percent of surveyed households not producing enough food for their own consumption. Industrialization had created a new class structure in the Vietnamese countryside with the rise of landless peasants who survived by selling their labor and who are net food buyers. The study contributes to the research that link the analysis of household food security with livelihood systems in the processes interacting across scales, from the very local to the global. [less ▲]

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See detailRegards croisés sur le contrat de dépôt et le contrat d'entreprise
Kohl, Benoît ULiege; Grisard, Delphine ULiege; Salzburger, Romain ULiege

in Germain, J. F. (Ed.) Questions spéciales en droit des contrats (2010)

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See detailLe Centre d'histoire des sciences et des techniques, et ses ressources documentaires en histoire de l'environnement
Xhayet, Geneviève ULiege

in Parmentier, Isabelle (Ed.) La recherche en histoire de l'environnement : Belgique, Luxembourg, Congo, Rwanda, Burundi, Actes PREBel, Namur, décembre 2008 (2010)

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See detail80 years of industrial dry hopping knowledge
Derdelinckx, Guy; Daenen, Luk; Rock, Jean-Marie et al

in EBC hop symposium 2010 (2010)

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See detailÀ l’école du cloître au XVIIe siècle : formation et éducation dans les ordres contemplatifs féminins (Pays-Bas méridionaux et Principauté de Liège),
Henneau, Marie-Elisabeth ULiege

in Mostaccio, Silvia; Delville, Jean-Pierre (Eds.) Genre et identités aux Pays-Bas méridionaux. L’éducation des femmes après le Concile de Trente (2010)

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See detailModeling of InSAR displacements related with the January 2002 eruption of Nyiragongo volcano
Wauthier, Christelle ULiege; Cayol, Valérie; Kervyn, François et al

in ECGS Blue Books (2010)

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See detailProteomic analysis of human pancreas cancers for the identification of targetable biomarkers
Castronovo, Vincenzo ULiege; Wang, Ying Hong; Musmeci, Davide et al

(2010)

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See detailBerichte aus der Fremde. Unbehaustheit als Grundmotiv von Joseph Roths Reisereportagen und Reiseschilderungen
Küpper, Achim ULiege

in Eicher, Thomas (Ed.) Joseph Roth und die Reportage (2010)

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See detailAssemblage moléculaire électro-assisté d’organothiols mono- et bipodes sur cuivre
Maho, Anthony ULiege; Denayer, Jessica; Delhalle, Joseph et al

Conference (2010)

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See detailSocial enterprise
Defourny, Jacques ULiege

Conference (2010)

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See detailNarrative, Rhetoric and the Historical Inscriptions of Ramses III
Gillen, Todd Jonathan ULiege

Conference (2010)

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See detailThe Lower to Middle Devonian transitional flora from Dechra-Aït-Abdallah (Morocco).
Prestianni, Cyrille ULiege; Meyer-Berthaud, Brigitte; Gerrienne, Philippe ULiege

Conference (2010)

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See detailLearning Probabilistic Discriminative Models of Grasp Affordances under Limited Supervision
Erkan, Ayse; Kroemer, Oliver; Detry, Renaud ULiege et al

in IEEE/RSJ International Conference on Intelligent Robots and Systems (2010)

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See detailLocal Structure of Mn in (La1-xHox)2/3Ca1/3MnO3 Studied by X-ray Absorption Fine Structure
Pietnoczka, A.; Pekala, M.; Bacewicz, R. et al

in Acta Physica Polonica A (2010), 117(2), 257-261

Results of X-ray absorption fine structure measurements in manganites (La1-xHox)2/3Ca1/3MnO3 with 0.15 < x < 0.50 are presented. When LaMnO3 is doped with a divalent element such as Ca2+, substituting ... [more ▼]

Results of X-ray absorption fine structure measurements in manganites (La1-xHox)2/3Ca1/3MnO3 with 0.15 < x < 0.50 are presented. When LaMnO3 is doped with a divalent element such as Ca2+, substituting forLa3+, holes are induced in the filled Mn d orbitals. This leads to a strong ferromagnetic coupling between Mn sites. Ca ions in La1-xCaxMnO3 introduce a distortion of the crystal lattice and mixed valence Mn ions (Mn3+ and Mn4+). On the other hand, in manganites (La1-xHox)2/3Ca1/3MnO3 the substitution of La for Ho causes a lattice distortion and induces a disorder, which reduces a magnetic interaction. The ferromagnetic transition temperature and conductivity decrease very quickly with increasing x. The magnetic and transport properties of compounds depend on the local atomic structure around Mn ions. The information on the bond lengths and Debye–Waller factor are obtained from the extended X-ray absorption fine structure (EXAFS) data analysis. The charge state of Mn is determined from the position of the absorption edge in X-ray absorption near edge structure (XANES) data. XAFS results are in good agreement with magnetic characteristics of the studied materials. [less ▲]

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See detailThermodynamische Bewertung neuer Syntheserouten in der chemischen Industrie
Fayyaz,, Sara; Hillerbrand, Rafaela; Pfennig, Andreas ULiege

Conference (2010)

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See detailLe signalement des auteurs et des oeuvres dans les papyrus littéraires grecs de médecine
Marganne, Marie-Hélène ULiege

in Gagos, Traianos (Ed.) Proceedings of the Twenty-Fifth International Congress of Papyrology, Ann Arbor 2007 (2010)

In the literary papyri, the presence of a final, initial, or noted on a label title, not only identifies certainly the contents, but is often also, with other codicologic peculiarities, the indication of ... [more ▼]

In the literary papyri, the presence of a final, initial, or noted on a label title, not only identifies certainly the contents, but is often also, with other codicologic peculiarities, the indication of a copy of library. Do the Greek literary papyri of medicine present an indication of this kind? Under what shape(s) are identified the authors and the medical treatises? We try to answer these questions by examining not only the papyri the author of which is identified, but also the adespota where are quoted some titles, sometimes accompanied with the name of their author. Making it, we distinguish the titles "instruments" of the titles "references", which are mentioned by the very author or by the other authors. [less ▲]

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See detailReading Pausanias: Cults of the Gods and Representation of the Divine
Pirenne-Delforge, Vinciane ULiege

in Bremmer, Jan N.; Erskine, Andrew (Eds.) The Gods of Ancient Greece: Identities and Transformations (2010)

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See detailSeasonal variation in the essential oil composition of Artemisia herba alba, Growing in Eastern Morocco
Imelouane, B.; El Bachiri, A.; Wathelet, Jean-Paul ULiege et al

Poster (2010)

The seasonal and even the number of hours that enable plants to be exposed to sunlight, may influence the phytochemistry of the plant since some compounds may be accumulated at a particular period to ... [more ▼]

The seasonal and even the number of hours that enable plants to be exposed to sunlight, may influence the phytochemistry of the plant since some compounds may be accumulated at a particular period to respond to environmental changes. Objectifs The seasonal variation of the essential oil extracted from the aerial parts of Artemisia herba alba growing in eastern Morocco (Taforalt) has been studied. [less ▲]

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See detailEvolution of anatomical complexity, including an early type of cambium, in Psilophyton-grade plants.
Strullu-Derrien, Marie-Christine; Gensel, Patricia G.; Gerrienne, Philippe ULiege

Conference (2010)

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See detailInvestigation on the effects of small solid particles on the settling behaviour of dispersion systems
Ruckes, Sebastian; Liu, Yang; Pfennig, Andreas ULiege

Conference (2010)

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See detailTNFR-induced activation of MAP3K14/NIK enhances TNFR1-induced cell death
Boutafalla, Layla; Bertrand, Mathieu; Remouchamps, Caroline ULiege et al

Conference (2010)

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See detailL'erreur totale pour le transfert de méthodes
Rozet, Eric ULiege

Conference (2010)

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See detailBlue light affects emotional processing in the hypothalamus in Seasonal Affective Disorder
Vandewalle, Gilles ULiege; Hébert, M; Doyon, J et al

in Journal of Sleep Research (2010), 19(Suppl. 2),

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See detailOptimisation de la fertilisation azotée de cultures industrielles légumières sous irrigation
Fonder, Nathalie ULiege; Heens, B.; Xanthoulis, Dimitri ULiege

in Vandenberghe, Christophe; Marcoen, Jean Marie (Eds.) Atelier Nitrate-Eau. Evaluation du Programme de Gestion Durable de l'Azote (2010)

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See detailSound production and associated behaviour in the Nile Tilapia, oerochromis niloticus (Cichlidae)
Longrie, Nicolas; Delcourt, Johann ULiege; Poncin, Pascal ULiege et al

Conference (2010)

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See detailExperimental study of the hydraulic behavior of piano key weirs
Machiels, Olivier ULiege; Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege et al

in Proc. 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (2010)

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See detailVers une révision de la norme de production d'azote de la vache laitière : justification et conséquences sur le taux de liaison
Lambert, Richard; De Toffoli, M.; Dufrasne, Isabelle ULiege et al

in Marcoen, Jean Marie; Vandenberghe, Christophe (Eds.) Acte de l'atelier "Nitrate - Eau" (2010)

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen ... [more ▼]

Towards a revison of the dairy cow’s standard for nitrogen production: justification and what are consequences for soil link rate of dairy farms. At present, the dairy cow’s standard of nitrogen production in Walloon region is 90 kg per year. This standard is used to calculate the “soil link rate” of farms, a balance between the organic nitrogen to be spread on land and the quantity legally authorized considering grassland and arable land area. This standard is appreciably lower than that fixed by other member states and was criticized by the European Commission during the negotiations having ended in the second program of sustainable nitrogen management. Further to new studies, it seems that the gaseous loss of nitrogen averages in buildings and during the storage is weaker than the 15% value which was used to justify this 90 kg standard. It also seems that there are big differences of average dairy production and average rate of urea according to the agricultural regions and consequently that regional production standards correspond better to the reality. On basis of these mean values, the dairy cow’s annual productions of nitrogen vary between 81 kg per year in grassy region of Fagne and 99 kg per year in Haute Ardenne and in grassy region from Liege. For the Walloon region in general, the average production is 94 kg per year. The adoption of different values of dairy cow’s nitrogen production by region would lead to an increase of 8% of the soil link rate of dairy farms in Haute Ardenne and of 7% in grassy region from Liege and a decrease of 7% in grassy region of Fagne. [less ▲]

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See detailEfficiency of day seven collection of bovine embryosafter superovulation by flushing the oviducts and the uterin horns.
Havlicek, V.; Kuzmany, A.; Beckers, Jean-François ULiege et al

in Reproduction, Fertility and Development (2010), 22(1), 363

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See detailFirst man in the eastern Finland : an Early Mesolithic inland site with a red-ochre grave in Joensuu Rahakangas
Pesonen, Petro; Hertell, Esa; Nyholm, Mikael et al

Poster (2010)

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See detailA Virtualization-Based Retrieval and Update API for XML-Encoded Corpora
Briquet, Cyril; Renders, Pascale ULiege; Petitjean, Etienne

in Proceedings of Balisage: The Markup Conference 2010 (2010)

Providing support for flexible automated tagging of text-oriented XML documents (i.e. text with intersparsed markup) is a challenging issue. This requires support for tag-aware full text search (i.e. the ... [more ▼]

Providing support for flexible automated tagging of text-oriented XML documents (i.e. text with intersparsed markup) is a challenging issue. This requires support for tag-aware full text search (i.e. the capability to skip some tags or make invisible whole sections of the document), match points, and transparent updates. An API addressing this issue is described. Based on the virtualization of selected sections of the XML document, the API produces a tag-aware representation, backed by the document, that is transparently searchable (using keyword search or regular expressions) and updatable, offering support for natural linguistic reasoning. [less ▲]

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