References of "2006"
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See detailLe maintien dans l'emploi des travailleurs âgés ou la gestion des âges.
Bertrand, Françoise ULg; Hansez, Isabelle ULg; De Keyser, Véronique ULg

in Chasseigne, G.; Lassarre, D. (Eds.) Stress et Société. Volume III (2006)

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See detailA general discontinuous Galerkin method for finite hyperelasticity. Formulation and numerical applications
Noels, Ludovic ULg; Radovitzky, Raúl

in International Journal for Numerical Methods in Engineering (2006), 68(1), 6497

A discontinuous Galerkin formulation of the boundary value problem of finite-deformation elasticity is presented. The primary purpose is to establish a discontinuous Galerkin framework for large ... [more ▼]

A discontinuous Galerkin formulation of the boundary value problem of finite-deformation elasticity is presented. The primary purpose is to establish a discontinuous Galerkin framework for large deformations of solids in the context of statics and simple material behaviour with a view toward further developments involving behaviour or models where the DG concept can show its superiority compared to the continuous formulation. The method is based on a general Hu-Washizu-de Veubeke functional allowing for displacement and stress discontinuities in the domain interior. It is shown that this approach naturally leads to the formulation of average stress fluxes at interelement boundaries in a finite element implementation. The consistency and linearized stability of the method in the non-linear range as well as its convergence rate are proven. An implementation in three dimensions is developed, showing that the proposed method can be integrated into conventional finite element codes in a straightforward manner. In order to demonstrate the versatility, accuracy and robustness of the method examples of application and convergence studies in three dimensions are provided. Copyright (c) 2006 John Wiley [less ▲]

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See detailHydrothermal synthesis and crystal structure of Na(Na,Mn)(7)Mn-22(PO4)(18)0.5H(2)O, a new compound of fillowite structure type
Keller, Paul; Hatert, Frédéric ULg; Lissner, Falk et al

in European Journal of Mineralogy (2006), 18(6), 765-774

The chemical compound Na(Na,Mn)(7)Mn-22(PO4)(18)center dot 0.5H(2)O was synthesized with a Tuttle pressure vessel at 800 degrees C and 1 kbar during experimental investigations on the conditions of ... [more ▼]

The chemical compound Na(Na,Mn)(7)Mn-22(PO4)(18)center dot 0.5H(2)O was synthesized with a Tuttle pressure vessel at 800 degrees C and 1 kbar during experimental investigations on the conditions of fillowite formation. The crystal structure of a single-crystal, space group R (No. 148), a = 15.2741(9), c = 43.334(3) angstrom, Z = 6, was determined from X-ray intensity data and refined up to R-1 = 0.0728 and R-l{FO > 4 sigma(FO)} = 0.0546. The crystal structure of Na(Na,Mn)(7)Mn-22(PO4)(18)center dot 0.5H(2)O is similar to the structure of fillowite, Na6Ca3(Mn,Fe)(21)(PO4)(18.), but a significant difference between the synthetic H2O containing compound and fillowite is the replacement of (Na12)O-8(-) by Mn(H2O)(2)O-5(-) polyhedra, which form characteristic six-member rings. The coordination polyhedra around Na12 and Mn12 are so different that simple isomorphous substitution of Na12 by Mn12 is very unlikely, but whole six-member rings either of (Na12)O-8(-) or (Mn12)(H2O)(2)O-5 polyhedra seem to be distributed statistically over the crystal structure. No indication for ordering, e.g. sheet by sheet, has been observed. Na(Na,Mn)(7)Mn-22(PO4)(18)center dot 0.5H(2)O is the first fillowite-like compound for which water is located in the structure from single-crystal study. This result is proved by infrared spectral data and indicates that water can play an essential role in the fillowite structure-type. Structural features of the synthetic compounds Na(Na,Mn)(7)Mn-22(PO4)(18)center dot 0.5H(2)O, Na4Ca4Mg21(PO4)(18) and fillowite are compared. [less ▲]

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See detailLes pouvoirs publics, entre prérogative de puissance publique et activité économique
Thirion, Nicolas ULg

in Liber Amicorum Jacques Malherbe (2006)

Etude visant à déterminer dans quelle mesure les activités des pouvoirs publics peuvent être soumises aux règles de concurrence, européennes ou nationales

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See detailSelf-face does not capture attention: an inattentional blindness study
Devue, Christel ULg; Laloyaux, Cédric ULg; Feyers, Dorothée ULg et al

Poster (2006)

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material ... [more ▼]

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material (e.g., the subject’s own name) in the inattentional blindness paradigm (Mack & Rock, 1998). However, stimuli combining these two properties have never been assessed. Yet it could be that the own face, because it is both a face and a self-referential stimulus, is more prone to attract attention compared to other faces. On the contrary, it could be that the identity and the familiarity of faces are not relevant factors because any face attracts attention by itself and all faces are equally distractive. Moreover, most of previous studies have used schematic unrealistic stimuli. Here, we tested these two opposite hypotheses in a first experiment using photographic stimuli and results showed that the own face does not attract attention compared to another highly familiar face or to an unknown face. Nevertheless, it appears that the own face was still better recognized compared to the others. A second experiment was aimed at verifying whether faces attract attention more than other objects with the same realistic photographic stimuli than used in experiment 1. Results confirmed previous findings that faces are more resistant to inattentional blindness than other objects. Our study suggests that a face by itself attracts attention compared to other objects whatever its familiarity or its identity. These results challenge the view that auto-referential material benefits from specific attentional processes. [less ▲]

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See detailLes dimensions du capital social : quelle cohérence pour des indicateurs au coeur de la théorie ?
Italiano, Patrick ULg

in Houard, Jean; Jacquemain, Marc (Eds.) Capital social et dynamique régionale (2006)

Analyse statistique des corrélations entre les dimensions structurelles et cognitives du concept de capital social à partir de données d'enquête

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See detailDu droit commercial au droit de l'entreprise: nouveau plaidoyer pour les faiseurs de systèmes
Thirion, Nicolas ULg

in Revue de la Faculté de Droit de l'Université de Liège (2006)

Etude visant à conférer au droit commercial une cohérence fondée sur sa raison d'être: la mise en oeuvre, dans la sphère juridique, des principes au fondement de la pensée libérale

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See detail"Dies verhüllte Genießen der Musik ohne Töne" : Robert Schumanns Reflexionen über das Medium Schrift.
Viehöver, Vera ULg

in Herwig, Henriette; Kalisch, Volker; Kortländer, Bernd (Eds.) et al ^Übergänge : Zwischen Künsten und Kulturen : Akten des Kongresses zum 150. Todestag von Heinrich Heine und Robert Schumann (2006)

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See detailThree-dimensional finite element modeling of inductive and capacitive effects in micro-coils
Dular, Patrick ULg; V Sabariego, Ruth ULg; Kuo-Peng, Patrick

in COMPEL (2006), 25(3), 642-651

Purpose - The paper seeks to develop dual 3D finite element (FE) formulations for modeling both inductive and capacitive effects in massive inductors, in particular micro-coils. The paper aims to build ... [more ▼]

Purpose - The paper seeks to develop dual 3D finite element (FE) formulations for modeling both inductive and capacitive effects in massive inductors, in particular micro-coils. The paper aims to build circuit relations relating the voltages and the currents in such inductors to be used in circuit coupling. Design/methodology/approach - A circuit relation involving a unique voltage and complementary inductive and capacitive currents is defined for each inductor. the inductive circuit relation is first classically obtained by a FE magnetodynamic model. Then, the capacitive relation is obtained through a FE electric model, using sources evaluated from the first model. The conformity is defined on one hand for the magnetic flux density and the electric field, and on the other hand for the magnetic field and the electric flux density. Mixed FE, i.e. nodal, edge and face elements, are used to satisfy each chosen conformity level for the unknown fields and to naturally define the involved global quantities, i.e. the voltages, currents and charges. Findings - This contribution points out the interest of satisfying conformity properties for the coupled magnetic and electric problems. An accurate computation of these effects is obtained in the critical frequency range of their strong interaction. In addition, the complementarity of dual solutions gives the possibility to estimate the discretisation error. Originality/value - The mathematical and discretisation tools for any wished conformity level are unified for naturally coupling magnetic and electric problems. The global quantities basis functions involved in the FE circuit relations benefit from a significant support reduction, which facilitates their evaluation and gives them direct physical interpretations. [less ▲]

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See detailDroit de l'homme et terrorisme
Monville, Pierre ULg

Part of book (2006)

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See detailAn O(1) Integration Scheme for Three-Dimensional Surface Scattering
Geuzaine, Christophe ULg

in AFRL/AFOSR 17th Electromagnetics Workshop (2006)

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See detailDIEM Werner, Eine arabische Kaufurkunde von 1024 n. Chr. aus Ägypten
Bauden, Frédéric ULg

in Bulletin Critique des Annales Islamologiques (2006), 22

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See detailA role for sleep in brain plasticity.
Dang Vu, Thien Thanh ULg; Desseilles, Martin ULg; Peigneux, Philippe ULg et al

in Pediatric Rehabilitation (2006), 9(2), 98-118

The idea that sleep might be involved in brain plasticity has been investigated for many years through a large number of animal and human studies, but evidence remains fragmentary. Large amounts of sleep ... [more ▼]

The idea that sleep might be involved in brain plasticity has been investigated for many years through a large number of animal and human studies, but evidence remains fragmentary. Large amounts of sleep in early life suggest that sleep may play a role in brain maturation. In particular, the influence of sleep in developing the visual system has been highlighted. The current data suggest that both Rapid Eye Movement (REM) and non-REM sleep states would be important for brain development. Such findings stress the need for optimal paediatric sleep management. In the adult brain, the role of sleep in learning and memory is emphasized by studies at behavioural, systems, cellular and molecular levels. First, sleep amounts are reported to increase following a learning task and sleep deprivation impairs task acquisition and consolidation. At the systems level, neurophysiological studies suggest possible mechanisms for the consolidation of memory traces. These imply both thalamocortical and hippocampo-neocortical networks. Similarly, neuroimaging techniques demonstrated the experience-dependent changes in cerebral activity during sleep. Finally, recent works show the modulation during sleep of cerebral protein synthesis and expression of genes involved in neuronal plasticity. [less ▲]

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See detailThe semiotic hierarchy
Badir, Sémir ULg

in Hébert, Louis (Ed.) Signo (2006)

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See detailUse of artificial diet system to assess the potential bio-insecticide effect of a fungal lectin from Xerocomus chrysenteron (XCL) on Myzus persicae.
Jaber, K.; Paquereau, L.; Fournier, D. et al

in Communications in Agricultural and Applied Biological Sciences (2006), 71(2 Pt B), 497-505

Lectins are carbohydrate binding proteins which are widely distributed in nature: they have been isolated from microorganisms, fungi, plants and animals. Many of these proteins were tested for their ... [more ▼]

Lectins are carbohydrate binding proteins which are widely distributed in nature: they have been isolated from microorganisms, fungi, plants and animals. Many of these proteins were tested for their potential biocide effect on lot of pests. Indeed, lectins can cause dramatic changes in the cellular morphology and metabolism, particularly on the digestive system of insect having ingested them, by lectin binding to membrane glycosyl groups of the digestive tract cells. A fungal lectin, namely Xerocomus Chrysenteron lectin (XCL) was previously purified and was shown to be toxic to several pests including aphids. At the cell level, an increase in the endocytosis, the induction of morphological changes such as the actin cytoskeleton shape was determined. In this work, the recombinant XCL was produced and was tested for its potential aphicide effect on Myzus persicae, a polyphagous aphid found on more than 400 host plant species and transmitting more than 100 viral diseases. We developed bioassays using different artificial diets incorporating a broad range of XCL concentrations (from 10 microgx ml(-1) to lmg.ml(-1)) to assess the potential negative effects of XCL on the development and reproduction of the M. persicae aphid. Significant mortality rates, changes of developmental durations and nymph production were observed depending on the XCL concentration in the artificial diet. Concanavalin A lectin was also used in a new range of experiments to compare the effects of the two lectins on the aphid biological parameters. According to the observed dose responses toward the XCL and Con-A lectins included in the artificial diet and the action mode of this kind of proteins, the perspectives of lectin use in pest control will be discussed. [less ▲]

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