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See detailLa numérisation des Archives Photographiques de Papyrologie Littéraire du CEDOPAL
Marganne, Marie-Hélène ULg

in Frosen, J.; Purola, T.; Salmenkivi, E. (Eds.) Proceedings of the 24. Congress of Papyrology. Helsinki, 1-7 August 2004 (2007)

The file and the Database Mertens-Pack3 of the CEDOPAL of the University of Liège (Belgium) complement each other with a unique collection to the world, begun more than forty years ago with the Professor ... [more ▼]

The file and the Database Mertens-Pack3 of the CEDOPAL of the University of Liège (Belgium) complement each other with a unique collection to the world, begun more than forty years ago with the Professor Paul Mertens, and ceaselessly enriched, more than 8000 photos of literary papyri, in black and white for the greater part, accompanied with their archives, that is, essentially, the enormous exchanged correspondence, since the sixties, between the CEDOPAL and the conservators of papyri. To perpetuate its collection of reproductions and give it more easily to the international scientific community, the CEDOPAL began since July, 2003, by means of a " Grant 2003 " of the International Association of Papyrologues, to digitize every photography of papyrus and to archive these images in a specialized database, which also includes informations from archival documents. [less ▲]

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See detailModelling the medium-scale TEC structures, observed by Belgian GPS receiver network
Kutiev, Ivan; Marinov, P.; Fidanova, S. et al

Conference (2007)

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See detailShort Course on Method validation
Boulanger, Bruno ULg; Hubert, Philippe ULg

Conference (2007)

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See detailL'art de choisir: une question de style
Pâques, Michel ULg

in Annales de Droit de Louvain (2007), (4), 351-354

teaching of law, choice of topics to be taught, how to present them, academic freedom

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See detailDomestiques et serviteurs à Bruxelles sous le régime autrichien : lieux de vie, de travail et de sociabilité
Stevens, Xavier ULg

in Huys, Jean-Philippe; Bethume, Kim (Eds.) Espaces et parcours dans la ville. Bruxelles au XVIIIe siècle (2007)

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See detailProsody and foreign language learning
Rasier, Laurent ULg

Conference (2007)

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See detailRELIABILITY ACCELERATED TESTING OF MEMS ACCCELEROMETERS
Bazu, Marius; Gălăţeanu, Lucian; Ilian, Virgil Emil et al

in IEEE Sensors Journal (2007), 1

An attempt to assess the reliability of a batch of MEMS accelerometers is presented. The testing plan is application oriented and contains combined tests: thermal and mechanical stresses (two variants ... [more ▼]

An attempt to assess the reliability of a batch of MEMS accelerometers is presented. The testing plan is application oriented and contains combined tests: thermal and mechanical stresses (two variants: vibration and tilting) were used. The results demonstrated the good reliability of the tested device, the failure rate being smaller than 6.10-8h-1. [less ▲]

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See detailRéhabilitation de cours d'eau : complémentarité de la morphologie et de la qualité de l'eau
Dupont, Etienne; Hallot, Eric ULg; Verniers, Gisèle et al

in La Gestion physique des cours d'eau : bilan d'une décennie d'ingénierie écologique (2007)

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See detailNumerical modelling of storage racks subjected to earthquake
Degée, Hervé ULg; Denoël, Vincent ULg

in Proceedings of COMPDYN 07, Conference on Computational Dynamics (2007)

This paper presents some aspects of the non linear dynamic time-history analysis of storage racks made of thin-walled steel products commonly used in warehouses when they are subjected to an earthquake ... [more ▼]

This paper presents some aspects of the non linear dynamic time-history analysis of storage racks made of thin-walled steel products commonly used in warehouses when they are subjected to an earthquake action. It focuses essentially on the accounting for structural non-linearities (geometric second order behavior of the structure and non-linear material be-havior of the joints) and for the possible relative motion between the rack and the stored goods that occurs as soon as the inertial force exceeds the friction resistance. In particular, it presents the algorithm used of to couple these two problems, followed by some simple appli-cations and comparisons with test results. [less ▲]

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See detailFirst steps to model milk urea in a management perspective
Bastin, Catherine ULg; Gillon, Alain ULg; Gengler, Nicolas ULg

in Journal of Dairy Science (2007), 90 - Suppl 1

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See detailInfluence of Soil Suction on Trench Stability
Tomboy, Olivier; Whenham, Valérie; De Vos, Monika et al

in Proc. of the 14th European Conference on Soil Mechanics and Geotechnical Engineering, Vol 2 (2007)

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See detailNonexponential decay of Bose-Einstein condensates: a numerical study based on the complex scaling method
Schlagheck, Peter ULg; Wimberger, S.

in Applied Physics B : Lasers & Optics (2007), 86(3), 385-390

We study the decay dynamics of an interacting Bose-Einstein condensate in the presence of a metastable trapping potential from which the condensate can escape via tunneling through finite barriers. The ... [more ▼]

We study the decay dynamics of an interacting Bose-Einstein condensate in the presence of a metastable trapping potential from which the condensate can escape via tunneling through finite barriers. The time-dependent decay process is reproduced by means of the instantaneous decay rates of the condensate at a given population of the quasi-bound state, which are calculated with the method of complex scaling. Both for the case of a double-barrier potential as well as for the case of a tilted periodic potential, we find pronounced deviations from a monoexponential decay behavior, which would generally be expected in the absence of the atom-atom interaction. [less ▲]

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See detailKnowledge-aided Array Calibration for Registration-based Range-dependence Compensation in Airborne STAP Radar with Conformal Antenna Arrays
Ries, Philippe; Lesturgie, Marc; Lapierre, Fabian D. et al

Conference (2007)

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See detailStudy of the role of histone deacetylases in myofibroblastic differenciation
Glénisson, Wendy; Waltregny, David ULg; Castronovo, Vincenzo ULg

Conference (2007)

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See detailInfluence of specific rehabilitation programs on pressure pain thresholds in patients with fibromyalgia or chronic low back pain
Maquet, Didier ULg; Demoulin, Christophe ULg; Lecart, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2007), 66

Background: Specific rehabilitation programs are recommended in chronic pain syndromes. The subjective experience and multidimensional nature of pain is problematic for assessment. Pressure pain threshold ... [more ▼]

Background: Specific rehabilitation programs are recommended in chronic pain syndromes. The subjective experience and multidimensional nature of pain is problematic for assessment. Pressure pain threshold (PPT) is defined as the minimum force applied which induces pain measured with a dolorimeter. Objectives: The purposes were: (1) to compare PPTs for 18 specific tender sites in patients with fibromyalgia (FM) and in patients with chronic low back pain (CLBP), (2) to assess the PPT changes in these groups following specific rehabilitation programs. Methods: Eleven women with CLBP and six women with FM were included in this study. They attended biweekly specific multidisciplinary rehabilitation sessions for 8 weeks. Pain intensity and PPTs for the 18 specific tender sites defined by the American College of Rheumatology were evaluated respectively with a visual analogue scale (VAS) and with an electronic dolorimeter, before and after the programs. Normative data of PPTs were established in a recent study [1]. Results: Before starting the rehabilitation program, patients with FM displayed VAS scores higher (p<0.05) than those with CLBP. Furthermore, FM patients had the lowest (p<0.05) PPTs over all examined areas. Statistical analysis failed to show any differences between PPTs of CLBP and healthy subjects. At the end of the specific program, VAS scores decreased significantly in both patient groups. In contrast, a significant increase of PPTs was only observed in FM patients. However, their PPTs remained below the CLBP and healthy PPT values. Conclusion: Despite the presence of chronic pain in these two syndromes, the decrease of PPTs appears to be specific in patients with FM. Measure of PPTs could represent a relevant method in order to perform a longitudinal follow-up of patient's pain perception. After the rehabilitation programs, pain intensity decreased in both patient groups. References: [1] Maquet D, Croisier JL, Demoulin C, Crielaard JM. Pressure pain thresholds of tender point sites in patients with fibromyalgia and in healthy controls. Eur J Pain, 2004, 8:111-117. [less ▲]

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See detailModelling of metal forming lubrication by O/W emulsions
MONTMITONNET, P.; STEPHANY, A.; CASSARINI, S. et al

in International Conference on Tribology in Manufacturing Processes. ICTMP 2007 (2007)

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See detailPhase distribution measurements in metallic foam using x-ray radiography and micro-tomography
Toye, Dominique ULg; Aferka, Saïd ULg; Calvo, Sébastien ULg et al

in Johansen, G. A.; Mc Cann, H. (Eds.) Proceedings of the 5th World Congress on Industrial Process Tomography, Bergen, Norway, September 6-9, 2007 (CD-ROM) (2007)

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See detailRegulation by androgens of the expression of the EGF receptor family members in prostate cancer cells
Pignon, Jean-Christophe; Delacroix, Laurence; Nolens, Grégory et al

Conference (2007)

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See detailComparison of different techniques for inoculation of Candidatus phytoplasma mali in biological indexing
Aldaghi, M.; Massart, Sébastien ULg; Roussel, S. et al

Poster (2007)

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See detailApplication of Laser Induced Breakdown Spectroscopy (LIBS) to the determination of transition probabilities of laser lines in Au II spectrum
Ortiz, M.; Mayo, R.; Biémont, Emile ULg et al

Conference (2007)

Experimental branching fractions for laser lines arising from excited states of 5d97s configuration of Au II have been determined by application of Laser Induced Breakdown Spectroscopy (LIBS). The ... [more ▼]

Experimental branching fractions for laser lines arising from excited states of 5d97s configuration of Au II have been determined by application of Laser Induced Breakdown Spectroscopy (LIBS). The experimental relative transition probabilities were converted into an absolute scale using theoretical values for the radiative lifetimes of the corresponding states, calculated in this work. Transition probabilities and radiative lifetimes have been determined by a relativistic Hartree - Fock method taking configuration interaction and core-polarization effects into account. A comparison of the present results with the available theoretical values has been made and shows a reasonable agreement although discrepancies are observed between theory and experiment for some transitions. [less ▲]

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See detailFréquence de l’hyperméthylation du promoteur du gène BLU dans le cancer du sein en Tunisie
Trimeche, Mounir; Ziadi, Sonia; Hachana, Mohamed Ridha ULg et al

in Bulletin du Cancer (2007)

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See detailIdentifying Triggering Mechanisms and Suppressing Aeroelastic Instabilities by Passive Targeted Energy Transfers: Nonlinear System Identification, Modal Interactions and Resonance Captures
Lee, Young S; Vakakis, Alexander F.; McFarland, D. M. et al

in 44th Aeroelasticity and Fluid/Structure Interaction Symposium, College Station, 2007 (2007)

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See detailAlpha-smooth muscle actin immunoreactivity in the human ileum: playing foul play?
Wedel, Theo; Waltregny, David ULg; Bogers, J. P. et al

Conference (2007)

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See detailSound production mechanism in the clownfish Amphiprion clarkii (Amphiprioninae, Pomacentridae)
Colleye, Orphal ULg; Herrel, Anthony; Mauguit, Quentin et al

Poster (2007)

Clownfishes live in social group within sea anemones. They are prolific “singers” that produce a wide variety of sounds, described as “pops” and “chirps”, involved in both reproductive and agonistic ... [more ▼]

Clownfishes live in social group within sea anemones. They are prolific “singers” that produce a wide variety of sounds, described as “pops” and “chirps”, involved in both reproductive and agonistic interactions. Although clownfish sounds were recorded since 1930, the mechanism of sound production has remained unresolved. The sounds used to describe the sonic mechanism were directed towards hetero- and conspecifics that approach their sea anemone host. Sound recordings were synchronized using a high speed video (500 fps) coupled or not with an X-ray system. These systems allowed to quantify the movements of external and internal bones during sound production. Sounds were typically accompanied by rapid (< 30 ms) head movements such as elevation of the skull, lowering of the hyoid bar and the anterior part of the branchial basket, retraction of the pectoral girdle, and finally closing of the mouth. Synchronization of sound pulses with X-ray images indicates that sound is produced when the hyoid apparatus is completely lowered and the mouth closed by a previously unknown mechanism. Dissections of freshly dead specimens reveal an unusual ligament responsible for the rapid mouth closing. This ligament joins the hyoid bar to the internal part of the mandible. Acting as a cord, it forces the mandible to turn around its articulation during the lowering of the anterior part of the branchial basket, forcing the mouth to close. Sounds result from the collision of the jaw teeth, transferring energy to the jaws that are presumably the sound radiator. [less ▲]

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See detailModelling strategies for microstructures moving in an electric field
Rochus, Véronique ULg; Andreykiv, Andriy; Rixen, Daniel

in International Conference on Computational Methods for Coupled Problems in Science and Engineering (2007)

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See detailDo plant species and climate warming influence nitrification and ammonia oxidiser community structure
Malchair, Sandrine ULg; Carnol, Monique ULg

in Belgian Biodiversity Platform, 2007 Conference: Biodiversity and Climate Change, 21-22 May 2007, Brussels (2007)

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See detailSYNOVIOCYTES, NOT CHONDROCYTES, RELEASE FREE RADICALS AFTER CYCLES OF ANOXIA/RE-OXYGENATION
Schneider, Nicole ULg; Mouithys-Mickalad, Ange ULg; Lejeune, Jean-Philippe ULg et al

Poster (2007)

Introduction : An oxidant activity has been implicated in the onset of equine osteoarthritis. Most of the studies have been done on articular chondrocytes, but little is known about the role of ... [more ▼]

Introduction : An oxidant activity has been implicated in the onset of equine osteoarthritis. Most of the studies have been done on articular chondrocytes, but little is known about the role of synoviocytes. Objective : Our aim was to investigate if equine articular chondrocytes, primary synoviocytes or synoviocytes of a continuous cell line are able to produce free radicals after exposure to anoxia and re-oxygenation. Methods : By oxymetry and electron paramagnetic resonance (EPR), we investigated the effects of repeated anoxia/re-oxygenation (A/R) periods on the respiration and production of free radicals by synoviocytes (rabbit HIG-82 cell line and primary equine synoviocytes) and equine articular chondrocytes. Three periods of 20 min anoxia followed by re-oxygenation were applied to 10exp7 cells; O2 consumption was measured before anoxia and after each re-oxygenation. After the last A/R, cellular free radical formation was investigated by EPR spectroscopy with spin trapping technique (n = 3 for each cell line). Results : Both types of synoviocytes showed a high O2 consumption, which was slower after anoxia. By EPR with the spin trap POBN, we proved a free radical formation. Results were similar for equine and rabbit synoviocytes. For chondrocytes, we observed a low O2 consumption, unchanged by anoxia, and no free radical production. Conclusion : These observations suggest an oxidant activity of synoviocytes, potentially important for the onset of osteoarthritis. [less ▲]

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See detailPrincipal components approach for estimating heritability of mid-infrared spectrum in bovine milk
Soyeurt, Hélène ULg; Tsuruta, Shogo; Misztal, Ignacy et al

in Journal of Dairy Science (2007)

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See detailGround-based FTIR measurements at Ile de La Réunion: Observations, error analysis and comparisons with satellite data.
Senten, Cindy; De Mazière, Martine; Hermans, Christian et al

in Geophysical Research Abstracts (2007), 9

Ground-based Fourier-transform infrared (FTIR) spectroscopy is a powerful remote sensing technique to obtain information on the total column abundances and on the vertical distribution of various ... [more ▼]

Ground-based Fourier-transform infrared (FTIR) spectroscopy is a powerful remote sensing technique to obtain information on the total column abundances and on the vertical distribution of various constituents in the atmosphere. Many of these species are essential for the investigation of important atmospheric phenomena, such as the overall greenhouse effect or the stratospheric ozone decrease and recovery. In the frame of the Network for the Detection of Atmospheric Composition Change (NDACC), such observations have been made since many years at several measurement stations for the worldwide long-term monitoring of the atmospheric composition. In this work, we present the results from two short-term FTIR measurement campaigns in 2002 and 2004 at the Ile de La Réunion (21°S, 55°E), a complementary NDACC site in the subtropics, in the Indian Ocean. All spectra were recorded in solar absorption mode. The results discussed here concern the direct greenhouse gases methane (CH4), nitrous oxide (N2O) and ozone (O3), and the indirect greenhouse gases carbon monoxide (CO) and ethane (C2H6), as well as hydrogen cyanide (HCN) and stratospheric hydrogen chloride (HCl), hydrogen fluoride (HF) and nitric acid (HNO3). For the latter species (HCN, HCl, HF and HNO3), we show time series of total column amounts from the surface up to 60 km. For CO, CH4, N2O and O3, it is possible to derive additionally independent information on a few partial columns; these time series are discussed as well. A complete error budget of the retrieval products is given. Temporary mutually correlated enhancements of CO, C2H6and HCN have been observed. They have been traced back to biomass burning events in southern Africa and Madagascar using the FLEXPART model. Comparisons of our retrievals with correlative data from satellite experiments, such as ACE and MOPITT, and with available ozone soundings, show generally good agreements between the different data sets. [less ▲]

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See detailEvolution de l'utilisation des intrants en céréaliculture : le cas des produits de protection des cultures
Dogot, Thomas ULg

in CRA-w; FUSAGx (Eds.) 40 ans Livre blanc Céréales-Gembloux "Economie de la production céréalière en Belgique : évolution en 40 ans de Politique Agricole Commune et perspectives d’avenir" (2007)

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See detailEffect of aggressive encounters on plasma progesterone, corticosterone and corticosteroid binding capacity
Charlier, Thierry ULg; Hammond, Geoffrey L; Soma, Kiran K

Poster (2007)

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See detailSpatial and temporal (30 yr.) variations of lead geochemical signature in a macrotidal highly polluted estuary
Taillez, A.; Jacqmot, A.; Petit et al

in Geochimica et Cosmochimica Acta (2007), 71(15), 993-993

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See detailAging and false memories
Dehon, Hedwige ULg; Brédart, Serge ULg

Conference (2007)

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See detailInfluence of the geographical area and the season on the milk urea content in Wallonia
Meura, S.; Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg et al

in Book of Abstracts of the 58th Annual Meeting of the European Association for Animal Production (2007)

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See detailGESTION DU RISQUE LORS DU TRANSFERT DE METHODES ANALYTIQUES – CAS D’UNE METHODE BIOANALYTIQUE
Rozet, Eric ULg; Dewe, W.; Morello, R. et al

Conference (2007)

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See detailNew Colliding-Wind Massive Binaries
De Becker, Michaël ULg; Rauw, Grégor ULg

in Massive Stars in Interactive Binaries (2007)

We report on the recent discovery of two new massive binary systems: WR20a and CygOB2#8A. For both systems, we briefly present the orbital solutions and we discuss the strong phase-locked line profile ... [more ▼]

We report on the recent discovery of two new massive binary systems: WR20a and CygOB2#8A. For both systems, we briefly present the orbital solutions and we discuss the strong phase-locked line profile variability of the Halpha and HeII lambda 4686 lines for WR20a, and the HeII &; 4686 line in the case of CygOB2#8A. In both cases, we show that the profile variability reveals the signature of a wind interaction. The prospects for future high-energy observations are also discussed. [less ▲]

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See detailCommuniquer en temps de crise alimentaire
Fallon, Catherine ULg; Brunet, Sébastien ULg

in CRA-W (Ed.) ) Communiquer en temps de crise alimentaire. Image et Communication : Pourquoi ? Pour qui ? Comment ? (2007)

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See detailMathematical modelling of growth factor induced bone regeneration: importance of angiogenesis
Van Oosterwyck, Hans; Vander Sloten, Jos; Geris, Liesbet ULg

in Tissue Engineering (2007)

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See detailPhotodegradation of bacteria with TiO2 produced by sol-gel method
Tasseroul, Ludivine ULg; Pàez Martinez, Carlos ULg; Braconnier, Benoît et al

Poster (2007)

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See detailSupercritical fluid technology to produce solid lipid microparticles
Nizet, Dominique; Jaspart, Séverine ULg; Brion, Michael et al

Conference (2007)

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See detailA fully coupled thermo-mechanical model for unsaturated soil
François, Bertrand ULg; Laloui, Lyesse

in 2nd International Conference on Porous Media and its Applications in Science, Engineering and Industry (2007)

This paper addresses a new, unified thermomechanical constitutive model for unsaturated soils through a coupled study. In the context of elastoplasticity and the critical state theory, the model uses the ... [more ▼]

This paper addresses a new, unified thermomechanical constitutive model for unsaturated soils through a coupled study. In the context of elastoplasticity and the critical state theory, the model uses the concepts of multi-mechanism and bounding surface theory. This advanced constitutive approach involves thermo-plasticity of saturated and unsaturated soils. Bishop’s effective stress framework is adopted to represent the stress state in the soil. This stress is linked to the water retention curve, which is represented by an elasto-plastic model. Attention is focused particularly on the coupling relations inferred from this unified thermo-hydro-mechanical (THM) study. Finally, the theoretical aspects of the paper are supported by comparisons between numerical simulations and experimental results. [less ▲]

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See detailStratégies comportementales de reproduction chez les animaux
Denoël, Mathieu ULg

in Bulletin de la Société Royale des Sciences de Liège (2007), 76

Biological diversity often refers to species counts but it also encompasses the amazing displayed reproductive strategies. Males and females exhibit adaptations which are not necessarily associated with ... [more ▼]

Biological diversity often refers to species counts but it also encompasses the amazing displayed reproductive strategies. Males and females exhibit adaptations which are not necessarily associated with the production of gametes. This sexual dimorphism is in part due to sexual selection, i.e. mate choice and competition within the sexes. The use of sometimes complex models allows to highlight the adaptive signification of strategies and then to explain their exhibition in varied situations. Each species is characterised by the existence of specific traits, but within each species, males and females are not constrained to exhibit a stereotyped strategy. In function of their phenotypic peculiarities and the surrounding environment, both sexes can opt for behavioural alternatives that optimize their reproductive success. This plasticity can lead to the exhibition of particular displays but also to the formation of monogamous or polygamous breeding systems. Selection does not stop at the reproductive act as varied strategies can favour a sexual partner over another one in a sexual conflict which can be pronounced, but which can also have bilateral advantages. Such a sperm competition – as acting at the gamete level – can result in sperm male precedence by the exhibition of guarding behaviour, physical or chemical manipulations and also by cryptic sperm choice. [less ▲]

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See detailQuantum imaging with incoherent photons
von Zanthier, J.; Thiel, C.; Bastin, Thierry ULg et al

Conference (2007)

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See detailLes espaces de liberté dans le domaine des sûretés et garanties de paiement
Georges, Frédéric ULg; Biquet, Christine ULg

in les espaces de liberté en droit des affaires (2007)

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See detailHigh resolution 16 row computed tomography examination of the canine thorax
De Busscher; Bolen, Géraldine ULg; Cavrenne et al

Poster (2007)

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See detailTelepresence based on remote real time control of a robot with brain waves
Grave de Peralta, R.; Noirhomme, Quentin ULg; Philips, J. et al

in Moreno, L. (Ed.) Annual Conference Proceedings, PRESENCE 2007 (2007)

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See detailL’exercice excentrique dans le traitement des tendinopathies
Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg; Forthomme, Bénédicte ULg

in Livre des résumés du 22ème Congrès de la Société Française de Médecine Physique et de Réadaptation (2007)

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See detailDisseminated Penicillium marneffei infection contrated in China
Hayette, Marie-Pierre ULg; Mukeba Tschialala, Didier; Meex, Cécile ULg et al

Poster (2007)

Penicillium marneffei infection is a rare fungal disease that cause significant disease in immunosuppressed patients. The geographical distribution of this dimorphic fungus is restricted to Asia ... [more ▼]

Penicillium marneffei infection is a rare fungal disease that cause significant disease in immunosuppressed patients. The geographical distribution of this dimorphic fungus is restricted to Asia, Southeast and Far East, where the disease is considered as an indicator of acquired immunodeficiency syndrome (AIDS). Case report. A 42-year old Congolese woman living in Lubumbashi was admitted at the university hospital of Liège for exploration of a general status impairment. She experienced for three months spiking fever, weight loss, productive cough with bloody expectorations and progressive dyspnoea. She reported also to have non-bloody mild diarrhoea with abdominal pain. The HIV antibody status was positive with a low CD4 T lymphocytes count (28/µl). Pulmonary infiltrates were visualized on chest radiography and the computed tomography revealed the presence of a severe pneumopathy characterised by bilateral micronodular lesions. Mediastinal polyadenopathies associated with hepato- and splenomegaly were also highlighted. Bronchoscopy was performed and bronchial aspirations revealed the presence of numerous leucocytes with the presence of intracellular Gram positive organisms suggestive of yeasts. Ziehl, Giemsa and Gomori-Grocott staining were also performed. Ziehl staining was negative. The morphological aspect given by Giemsa staining excluded infection and the PCR specific for T. gondii B1 gene was negative. However, Gomori-Grocott staining revealed the presence of intracellular oval, elongated, sausage-shaped cells with a single transverse septum (3 to 5 µm). Penicillium marneffei was isolated from blood culture and respiratory samples. Intraveinous amphotericin B treatment was administrated during 15 days followed by itraconazole oral administration (200 mg/j). The antimycotic treatment improved the patient condition and despite other clinical troubles she was prematurely discharged because of financial problems. Conclusion. Opportunistic agents involved in HIV-infected patients differ in Africa and Asia and it is important to be able to make a rapid diagnosis with the aid of an experienced laboratory. [less ▲]

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See detailLes contraintes résultant du lancer : comment protéger l’épaule ?
Forthomme, Bénédicte ULg; Crielaard, Jean-Michel ULg; Croisier, Jean-Louis ULg

in Résumés des Communications du 3ème Colloque Médico-sportif « Entre laboratoire et terrain » (2007)

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See detailDétermination et cartographie des micro-habitats lotiques : Une approche géomorphologique
Hallot, Eric ULg; Houbrechts, Geoffrey ULg; Verniers, Gisèles et al

Poster (2007)

Lors du suivi d’aménagement ou de restauration de cours d’eau, l’analyse des micro-habitats s’avère un élément important. Leur caractérisation et leur quantification permet la comparaison avec d’autres ... [more ▼]

Lors du suivi d’aménagement ou de restauration de cours d’eau, l’analyse des micro-habitats s’avère un élément important. Leur caractérisation et leur quantification permet la comparaison avec d’autres sites témoins et de suivre leur évolution dans le temps. Une carte des micro-habitats est indispensable à la compréhension d’indices biologiques en établissant notamment une relation entre la diversification du milieu (donc des micros-habitats) et la diversité des macro-invertébrés benthiques. Cette cartographie est obtenue en croisant, grâce à un logiciel SIG, deux couches d’information, la bathymétrie et le substrat. La bathymétrie est obtenue par soustraction du MNT du fond du lit et du MNA du plan d’eau à l’étiage. Le substrat est obtenu par observation de terrain en utilisant une clé de détermination basée sur les grandes classes granulométriques du substrat et la granulométrie des éléments intercalaires. Ces deux couches d’information sont ensuite discrétisées chacune en 4 classes principales afin d’obtenir 16 types théoriques pour lesquels la superficie et la répartition peuvent être étudiés à partir d’outils SIG classiques. La méthode proposée, bien qu’aisée à mettre en œuvre, nécessite cependant une certaine expertise notamment lors de la détermination des classes du substrat. La précision du MNT du fond du lit définira quant à elle, la précision finale de la carte. Nous présentons ici deux exemples. Le premier, réalisé sur l’Ourthe Occidentale à Moircy, a permis la comparaison entre un site réaménagé et un site témoin. Le second, sur la Semois Lorraine à Sivry, a été effectué afin d’étudier l’évolution de la recolonisation par les macro- invertébrés benthiques d’un secteur réaménagé mais également de définir très précisément l’emplacement de leur échantillonnage afin d’assurer une répartition la plus représentative possible. [less ▲]

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See detailTowards a carbon balance at the Lonzée crop site
Moureaux, Christine ULg; Debacq, Alain ULg; Suleau, Marie ULg et al

Conference (2007)

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See detailEstrus synchronization, artificial insemination, and pregnancy diagnosis in water buffaloes (Bubalus bubalis)
Hanh, NV; Huu, QX; Uoc, NT et al

in Reproduction, Fertility and Development (2007), 19(1), 198

One of the big obstacles in management of reproductive activity in water buffaloes is their silent estrus. This characteristic prevents the determination of time for artificial insemination (AI ... [more ▼]

One of the big obstacles in management of reproductive activity in water buffaloes is their silent estrus. This characteristic prevents the determination of time for artificial insemination (AI), resulting in lengthening of the calving interval (Nguyen et al. 1990 Proc. FAO Workshop, Bulgaria, 210–216). Pregnancy-associated glycoprotein (PAG) measurement in maternal blood is an effective method of early pregnancy diagnosis in ruminant species (Zoli et al. 1992 Biol. Reprod. 46, 83–92). The present study describes a preliminary attempt to improve buffalo reproductive performance by association of three different approaches: synchronization of estrus by hormonal treatment, followed by two AI, and finally pregnancy diagnosis based on PAG measurements. A total of 33 buffalo females (4 to 15 years old), with no apparent estrus during a period of 9 to 36 months after last calving, were used. Each female received 2 injections of 5 mL of PGF2α (Intervet, France) 10 days apart (Day -12 and Day -2), one injection of 500 IU of PMSG (SABC, Vietnam) at Day -5, and 1000 IU of hCG (Intervet, France) on the day of AI (Day 0). A second AI was performed 8 h after hCG injection. Blood samples (9 mL) were collected from each female at Days 20, 25, 40, and 45 after AI. Blood samples were withdrawn by jugular venipuncture (heparinized Vacutainer tubes) and kept in a cool box until centrifugation (500g, 10 min). Plasma samples were stored at -20°C until assayed for PAG. Pregnancy diagnosis was considered negative, doubtful, or positive according to the PAG concentrations (<0.6 ng mL-1, 0.6 to 0.8 ng mL-1, and >0.8 ng mL-1, respectively). Clinical observation of females after insemination showed that the total rate of animals that exhibited signs of estrus until Day 45 was 9.1% (3/33). These 3 females were not considered for pregnancy diagnosis. Table 1 shows the results of pregnancy diagnosis in 30 water buffalo females. These results show that fertilization is easily obtained after estrus synchronization in buffaloes and that measurement of PAG concentrations in maternal plasma can be used for pregnancy diagnosis from Day 40 after AI. [less ▲]

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See detailAccuracy of size distributions obtained from single particle static digital image analysis.
Gregoire, Max; Dislaire, Godefroid; Pirard, Eric ULg

in Proceedings PARTEC2007 (2007)

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See detailBelgium : Characteristics of International Administration in Crisis Area
Candela Soriano, Mercedes; Brunet, Sébastien ULg

in Korhonen, Outi (Ed.) International Administration of Crisis Area : Nine National Approaches (2007)

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See detailA collaborative framework for multi-area dynamic security assessment of large scale systems
Wehenkel, Louis ULg; Glavic, Mevludin; Ernst, Damien ULg

in Proceedings of the 2007 Power Tech (2007)

In this paper we propose a collaborative framework to carry out multi-area dynamic security assessment over an interconnection operated by a team of TSOs responsible of different areas. In this framework ... [more ▼]

In this paper we propose a collaborative framework to carry out multi-area dynamic security assessment over an interconnection operated by a team of TSOs responsible of different areas. In this framework each TSO does his part of the work and, thanks to information exchange and coordination rules, potential security problems can be detected by all the involved TSOs. We find that distributed multi-area security assessment is achievable and useful if, on the one hand, each TSO can provide an appropriate dynamic equivalent model of his area and if, on the other hand, he is able to publish stability bounds on his inflows under which the dynamic performance of his system would remain acceptable. We then discuss the notions of dynamic equivalent model and external stability domain characterization of an area and identify techniques for deriving such equivalents and stability bounds within the proposed framework. [less ▲]

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See detailResponse of autotrophic and heterotrophic respiration to biotic and abiotic factors over a cropland
Suleau, Marie ULg; Debacq, Alain ULg; Moureaux, Christine ULg et al

in Final conference of the programme "The role of soils in the terrestrial carbon balance", European Science Foundation (2007)

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See detailObservations of comet McNaught from La Silla
Snodgrass, C.; Jehin, Emmanuel ULg; Fitzsimmons, A. et al

Poster (2007)

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See detailSpatial dynamics of rRNAs within the cell nucleus
Thiry, Marc ULg; Lamaye, Françoise; Thelen, Nicolas ULg et al

Poster (2007)

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See detailInfluence of soil suction on trench stability
Whenham, Valérie; De Vos, Monika; Legrand, Christian et al

in Proc. of the 2nd Int. Conf. on Mechanics of Unsaturated Soils - USS2007 Experimental Unsaturated Soil Mechanics (2007)

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See detailNitrogen balance and nitrate residues in pastures grazed by dairy cows and and fertilised with mineral fertiliser, pig slurry or cattle compost
Dufrasne, Isabelle ULg; Meura, S.; Cabaraux, Jean-François ULg et al

in Permanent and temporary grassland plant, environment and economy, A De Vliegher an L. Carlier editors, Book of abstracts of 14th Symposium of European Grassland Federation (2007)

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See detailNonlinear MDOF System Characterization and Identification using the Hilbert- Huang Transform: Experimental Demonstration
Kerschen, Gaëtan ULg; Vakakis, Alexander F.; Lee, Young.S et al

in 25th International Modal Analysis Conference, Orlando, 2007 (2007)

The Hilbert transform is one of the most successful approaches to tracking the varying nature of vibration of a large class of nonlinear systems, thanks to the extraction of backbone curves from ... [more ▼]

The Hilbert transform is one of the most successful approaches to tracking the varying nature of vibration of a large class of nonlinear systems, thanks to the extraction of backbone curves from experimental data. Because signals with multiple frequency components do not admit a well-behaved Hilbert transform, this transform is inherently limited to the analysis of single-degree-of-freedom systems; this shortcoming is potentially overcome by the Hilbert-Huang transform (HHT). In this study, the joint application of the complexification-averaging method and the HHT enables us to develop a new technique, the slow-flow model identification method. Through an experimental application, we demonstrate that the proposed method is adequate for characterizing and identifying multi-degreeof-freedom nonlinear systems. [less ▲]

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See detailEffective arterial elastance as an index of pulmonary arterial load
Morimont, Philippe ULg; Lambermont, Bernard ULg; Ghuysen, Alexandre ULg et al

in European Journal of Heart Failure, Supplements (2007), 6

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See detailEcological thresholds and estimates of breaking points in newt populations: a useful tool to categorise habitat use and apply conservation measures
Denoël, Mathieu ULg; Ficetola, Gentile

Poster (2007)

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because ... [more ▼]

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because they allow to understand ecological requirements of species and to provide efficient conservation measures. However, there is a lack of concordance across studies and this method was not yet applied to newts. In this study, we sampled 371 ponds to gather occurrence data on the palmate newt Triturus heveticus and the Alpine newt Triturus alpestris. We tested for the existence of significant thresholds for three variables: distance to forest, forest and crop covers. We found significant thresholds for both landscape configuration and composition, with relationships between distance to forest and occurrence of Triturus alpestris and T. helveticus, and forest and crop cover and T. helveticus. Both species require breeding ponds within a given distance from the forest, but T. helveticus is more dependent on forest availability than T. alpestris: its ecological threshold is located at lower distance from forest edge, and requires also higher values of forest cover. Crops have a negative influence on palmate newt distribution with a significant breaking point, but not for T. alpestris in the studied area. These results indicate that thresholds can be a useful concept from which tools may be developed. They are particularly pertinent to focus conservation effort for threatened species and their habitats as quantitative measures of the most required habitats for species can be obtained from statistically determined breaking points [less ▲]

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See detailAnalysis and application of two complementary numerical models for predicting flood waves generated by failures or dysfunctions occuring on a complex of dams
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proceedings of the 32nd IAHR Biennial Congress - Harmonizing the demands from art and nature (2007)

A complete risk analysis related to a complex of dams may involve the assessment of a large number of different scenarios of failures and dysfunctions. However, a high computation time would be needed to ... [more ▼]

A complete risk analysis related to a complex of dams may involve the assessment of a large number of different scenarios of failures and dysfunctions. However, a high computation time would be needed to perform a two-dimensional analysis of the flows generated by all possible scenarios. For this reason, the present paper expounds two complementary flow models, developed to be exploited within a rational methodology for analysing the flows induced by various incidents on a complex of dams and reservoirs. The first model is the two-dimensional flow solver WOLF 2D, while the second one is a simplified lumped model, requiring very low computation time. An original analytical study is presented to demonstrate the conditions of applicability of the lumped model. This study leads to the practical conclusion that the evaluation of two non-dimensional parameters enables to assess a priori the validity of the simplified approach for any specific application. The paper also describes the combined application of both models to a practical case study involving a complex of five dams. In a first step the lumped model has been validated by comparisons with the results provided by the two-dimensional model WOLF 2D. Secondly the simplified model has been successfully applied, at a very low CPU cost, to simulate flows induced by various dysfunctions and to conduct sensitivity analysis. In conclusion, based on both theoretical developments and numerical studies, the paper provides new advances of practical relevance for dam break risk analysis. [less ▲]

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