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See detailLochkovian (Early Devonian) acritarchs and prasinophytes from the Solimões Basin, nortwestern Brazil
Rubinstein, C. V.; Le Hérissé, A.; Steemans, Philippe ULg

in Neues Jahrbuch für Geologie und Palaontologie. Abhandlungen (2008), 249(2), 167-184

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See detailQuantum imaging with uncorrelated single photon sources
Bastin, Thierry ULg

in Proceedings of SPIE (2008)

We propose a technique to obtain sub-wavelength resolution using photons from uncorrelated single photon sources. The method employs N photons of wavelength λ spontaneously emitted from N atoms and ... [more ▼]

We propose a technique to obtain sub-wavelength resolution using photons from uncorrelated single photon sources. The method employs N photons of wavelength λ spontaneously emitted from N atoms and subsequently detected by N detectors. We demonstrate that for certain detector positions the N-th order correlation function as a function of the first detector position is a pure sinusoidal oscillation with a fringe spacing of λ/N and a contrast of 100%. The result corresponds to an N-fold increase in resolution compared to classical microscopy. Our technique is also capable of imaging a distinct physical object with sub-Rayleigh resolution. [less ▲]

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See detailIntertextualität als Sinnkonstruktion und Wahnsystem. Zu Günter Grass' Roman Ein weites Feld.
Pontzen, Alexandra ULg

in Stephan, Inge; Tacke, Alexandra (Eds.) NachBilder der Wende (2008)

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See detailVariations In Physicochemical And Functional Properties Of Starches Extracted From European Soft Wheat (Triticum Aestivum L.): The Importance To Preserve The Varietal Identity
Massaux, Carine; Sindic, Marianne ULg; Lenartz, Jonathan et al

in Carbohydrate Polymers (2008), 71(1), 32-41

The quality valuation of wheat is based on characteristics like yield, specific weight, protein content and protein quality. Until now. the starch properties are rarely considered as a quality criterion ... [more ▼]

The quality valuation of wheat is based on characteristics like yield, specific weight, protein content and protein quality. Until now. the starch properties are rarely considered as a quality criterion. In this study, we showed the influence of wheat cultivars (Triticum aestivum L.) and culture year on the intrinsic properties of starch, extracted from European wheat grown in the same conditions. For example, starch damage varied from 13.2 to 19.9 CDU in function of the cultivars and contribution of the B-type starch granules (<10 mu m) to the total volume ranged from 11.6% to 29.9%. Starch viscosity at 95 degrees C, characterized with alpha-amylase inactivation by 2 mM AgNO3 addition. varied from 276.5 to 351.5 BU with the wheat cultivars. It is apparent from this study that starch properties were principally influenced by the wheat cultivar and slightly by the culture year. A good relationship between the pasting properties of whole flour and starch were finally established, showing the important role of starch in the whole flour viscosity. A thorough working knowledge of starch properties could lead to an appropriate selection of wheat cultivar, well-adapted to industrial end uses, without encountering processing or end-products quality problems and with most cost-competitive production. [less ▲]

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See detailACMEG-TS: A unified elasto-plastic constitutive model to simulate coupled processes in non-isothermal unsaturated soils.
François, Bertrand ULg; Laloui, Lyesse

in 1st European Conf. on Unsaturated Soils (2008)

Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and unsaturated effects. A new ... [more ▼]

Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and unsaturated effects. A new constitutive model dealing with partially saturated soils under non-isothermal conditions is presented through a unified and highly coupled constitutive approach. In the context of the elasto-thermoplasticity and the critical state theory, the so-called ACMEG-TS model uses the concepts of multi-mechanism and bounding surface theory. The generalized effective stress framework is adopted to represent the stress state in the soil. This model brings advancements on the thermo-hydraulic couplings that directly affect the mechanical behaviour of the materials. The constitutive relations based on the evolutions of the two key parameters (the reconsolidation pressure and the air-entry suction) make it possible to reproduce the main features of the thermo-mechanical behaviour of unsaturated soils. Theoretical aspects of the paper are supported by comparisons between numerical simulations and experimental results extracted from literature. [less ▲]

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See detailHypoxia promotes resistance to etoposide by regulating p53 stability and c-jun DNA-binding activity
Cosse, Jean-Philippe ULg; Ronvaux, Marie; Ninane, Noelle et al

Conference (2008)

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See detailUn témoignage nouveau sur les trochisques : P. Berol. inv. 21350
Marganne, Marie-Hélène ULg

in Boudon-Millot, Véronique; Dasen, Véronique; Maire, Brigitte (Eds.) Femmes en médecine. Actes de la Journée internationale d'étude organisée à l'Université René-Descartes-Paris V, le 17 mars 2006 en l'honneur de Danielle Gourevitch (2008)

Edition, translation and commentary of a Greek literary medical papyrus (P. Berol. inv. 21350, A.D. IIex./IIIin., unknown provenance) which contains a text on trochiskoi.

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See detailSchuld und Scham
Preusser, Heinz-Peter; Pontzen, Alexandra ULg

Book published by Winter Verlag (2008)

Aias, herausragender griechischer Heros vor Troia, metzelt im Zustand der Raserei Herdenvieh nieder, in dem er seine Gegner zu erkennen glaubt. Zur Besinnung gekommen, stürzt er sich, beschämt über den ... [more ▼]

Aias, herausragender griechischer Heros vor Troia, metzelt im Zustand der Raserei Herdenvieh nieder, in dem er seine Gegner zu erkennen glaubt. Zur Besinnung gekommen, stürzt er sich, beschämt über den Ehrverlust, in sein Schwert. Die ‚Entschuldigung‘, die für Aias nur durch Entleibung zu leisten war, entspricht heute etwa dem medial inszenierten Rückzug aus der politischen Öffentlichkeit, dem Rücktrittsangebot oder dem Fehlereingeständnis. Offensichtlich gibt es nach wie vor ein kollektives Bedürfnis nach solchen stellvertretenden Reinigungsritualen. Anlässe und Reaktionsformen haben sich zwar gewandelt, das Gefühl der Scham aber ist immer noch von existenziell-individueller Bedeutung und besitzt eine öffentlich wirksame Symbolik. Historisch gesehen spannt der Band einen Bogen von der (laut Georg Wilhelm Friedrich Hegel) ‚gewissenlosen‘ griechischen Antike bis in die ‚unverschämte‘ Gegenwart. Systematisch betrachtet konfrontieren die unterschiedlichen Kulturkreise einander in ihren Definitionen und Kompensationen von Fehlverhalten: vom paganen Griechentum über das christliche Abendland bis hin zum Islam. Im 20. und 21. Jahrhundert bestimmen Diskurse der Bewältigung den Umgang mit der Geschichte, mit Fragen der Kriegsschuld oder des Völkermordes. Kulturelle, nationale, historische und gender-spezifische Unterschiede prägen die verbalen Entschuldigungen, das öffentliche und private Verhalten, Kleidercode und Körpersprache. Während Schamdiskurse dazu dienen, eigenes Fehlverhalten in der Gemeinschaft zu regulieren oder vor dem Selbst zu rechtfertigen, funktionieren umgekehrt Schuldzuschreibungen oder gezielte Beschämungen des anderen als Herrschaftsinstrumente: prominent etwa in den Bildern von Abu Ghraib. [less ▲]

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See detailAn efficient global methodology for hazard analysis of dams complexes and cascades
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Brebbia, C. A.; Popov, V.; Beriatos, E. (Eds.) Risk analysis Vol. 6 (2008)

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed ... [more ▼]

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed to perform a detailed modelling of the flows generated by all possible scenarios. Therefore, the present paper describes a methodology for analysing the flows induced by the most relevant incidents occurring on a complex or in a cascade of dams and reservoirs. The methodology combines several hydrodynamic models, including the two-dimensional flow solver WOLF 2D and a simplified lumped hydrodynamic model, to simulate the flows induced on the dams complex, the potential breaching in cascade of other dams, as well as the propagation of the flood wave in the whole downstream valley. The application of the methodology to a practical case study involving a complex of five dams is also described. [less ▲]

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See detailNumerical modelling of transient flows with high sediment concentrations
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Pirotton, Michel ULg

in DE WRACHIEN, D. (Ed.) Monitoring, Simulation, Prevention and Remediation of Dense Debris Flows II (2008)

The main purpose of the present paper is to describe and discuss the development, validation and application of a numerical model designed to handle transient flows with high sediment transport rates. The ... [more ▼]

The main purpose of the present paper is to describe and discuss the development, validation and application of a numerical model designed to handle transient flows with high sediment transport rates. The model considers non-equilibrium transport (i.e. accounting for loading / unloading delay) and is numerically as well as physically totally coupled. The closure relations needed to evaluate the exchange fluxes between the fixed bottom and the flowing mixture (erosion and deposition rates) are also detailed in the paper. Finally, the model is validated against experimental data collected in the framework of the European project IMPACT. [less ▲]

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See detailLeibniz against the unreasonable newtonian physics
Bouquiaux, Laurence ULg

in Dascal, Marcelo (Ed.) Leibniz : what king of a rationalist? (2008)

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See detailInfluence Of The Grinding Level And Extrusion On The Nutritional Value Of Lupin Seed (Lupinus Albus) For Cattle In The Context Of The Dutch Protein Evaluation System
Froidmont, E.; Bonnet, M.; Oger, Robert ULg et al

in Animal Feed Science & Technology (2008), 142(1-2),

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See detailLong-term evolution of the North Anatolian fault (Turkey)
Hubert, Aurelia ULg; Van Der Woerd, J.; King, G. et al

in Geological Society of London (Special publication : Geodynamics of Collision and Collapse at the Africa-Arabia-Eurasia Subduction Zone, Editor R. Govers) (2008)

The deformation and 40Ar-39Ar dating of recent volcanism that remarkably sits across the North Anatolian Fault eastern termination in Turkey, together with previous studies, put strong constraints on the ... [more ▼]

The deformation and 40Ar-39Ar dating of recent volcanism that remarkably sits across the North Anatolian Fault eastern termination in Turkey, together with previous studies, put strong constraints on the long- term evolution of the fault. We argue that after a first phase of 10 Ma, characterized by a slip rate of about 3 mm/yr, and during which most of the trace was established, the slip rate jumped to about 20 mm/yr on average over the last 2.5 Ma, without substantial increase of the fault length. The transition correlates with a change in the geometry at the junction with the East Anatolian Fault that makes the extrusion process more efficient. [less ▲]

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See detailRegulation of the activity of monoaminergic neurons by ion channels : an opportunity for new therapeutic approaches ?
Seutin, Vincent ULg

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (2008), 163(5), 213-22

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See detailCorrelation between increased bone mineral density and decreased fracture risk - Bone mineral density as a tool to monitor postmenopausal osteoporosis treatment
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Medicographia (2008), 30(4), 355-359

Although low bone mineral density (BMD) is predictive of fracture risk in untreated patients, there is currently debate about the extent to which the antifracture efficacy of antiosteoporotic agents is ... [more ▼]

Although low bone mineral density (BMD) is predictive of fracture risk in untreated patients, there is currently debate about the extent to which the antifracture efficacy of antiosteoporotic agents is related to BMD changes. The goal of this article is to make an overview of studies dealing with the association between BMD changes and fracture risk reduction. The percent- age of the reduction in fracture risk attributable to changes in BMD after an- tiresorptive treatments (risedronate, alendronate, and raloxifene) varies from 4% to 28%. One study with a bone-forming agent (teriparatide) found that the proportion of fracture risk reduction attributable to the increase in BMD ranged from 30% to 41%. With strontium ranelate, the changes in femoral neck and total hip BMD explained 76% and 74%, respectively, of the reduction in verte- bral fractures observed during treatment. However, study designs as well as statistical methods often differ, making the comparison between studies rather difficult. Our review indicates that the association between BMD changes and fracture risk is equivocal, but seems to be higher for strontium ranelate than that reported for its competitors. [less ▲]

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See detailNew Trends in Computing Anticipatory Systems : Emergence of Artificial Conscious Intelligence with Machine Learning Natural Language
Dubois, Daniel ULg

in Dubois, Daniel (Ed.) COMPUTING ANTICIPATORY SYSTEMS (2008)

This paper deals with the challenge to create an Artificial Intelligence System with an Artificial Consciousness. For that, an introduction to computing anticipatory systems is presented, with the ... [more ▼]

This paper deals with the challenge to create an Artificial Intelligence System with an Artificial Consciousness. For that, an introduction to computing anticipatory systems is presented, with the definitions of strong and weak anticipation. The quasi-anticipatory systems of Robert Rosen are linked to open-loop controllers. Then, some properties of the natural brain are presented in relation to the triune brain theory of Paul D. MacLean, and the mind time of Benjamin Libet, with his veto of the free will. The theory of the hyperincursive discrete anticipatory systems is recalled in view to introduce the concept of hyperincursive free will, which gives a similar veto mechanism: free will as unpredictable hyperincursive anticipation The concepts of endo-anticipation and exo-anticipation are then defined. Finally, some ideas about artificial conscious intelligence with natural language are presented, in relation to the Turing Machine, Formal Language, Intelligent Agents and Mutli-Agent System. [less ▲]

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See detailLes lipases sont des hydrolases atypiques : principales caractéristiques et applications
Fickers, Patrick ULg; Destain, Jacqueline ULg; Thonart, Philippe ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2008), 12(2), 119-130

Due to their kinetic and substrate specificities, triacylglycerol acyl-hydrolases or lipases are atypical enzymes. In function of their microenvironment, lipases are able to act as hydrolases in aqueous ... [more ▼]

Due to their kinetic and substrate specificities, triacylglycerol acyl-hydrolases or lipases are atypical enzymes. In function of their microenvironment, lipases are able to act as hydrolases in aqueous solution or as biocatalysts in organic synthesis. As hydrolases, they are responsible of the triglycerids catabolism into fatty acids and glycerol. In many organisms, this reaction plays a major role in the fat and lipid metabolism. In addition, lipases are also able to hydrolyse phospholipids and cholesterol esters. In organic solvent, lipases could catalyse reactions such as esterifications, acidolysis or alcoolysis with enantio-, regio- and chimioselectivity. Lipases form a mixed class of enzyme due to their animal, vegetal or microbial origins. All those properties led to the development of many applications in the food and chemical industries but also in the medical and therapeutic field. [less ▲]

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See detailRestauration des potentialités de sols dégradés à l’aide du zaï et du compost dans le Yatenga (Burkina Faso)
Sawadogo, H.; Bock, Laurent ULg; Lacroix, D. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2008), 12(3),

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See detailDer unmögliche Chronotopos – Die „Stunde Null“ als Mythos der Narration am Beispiel von Günter Grass’ „Im Krebsgang“.
Pontzen, Alexandra ULg

in Preusser, Heinz-Peter; Galli, Matteo (Eds.) Deutsche Gründungsmythen von der Hermannschlacht bis zum Wunder von Bern. (2008)

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