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See detailDecrease of serum concentrations of dioxins and PCBs in Belgium between 2000 and 2003
Fierens, Sébastien; Heilier, Jean-François; Eppe, Gauthier ULg et al

in Organohalogen Compounds (2005), 67

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See detailTissue differentiation during fracture healing in mice: comparison of an experimental and numerical study
Geris, Liesbet ULg; Gerisch, Alf; Maes, Christa et al

in Proceedings of the first thematic workshop of the European Society of Biomechanics on Mechanobiology of Cells and Tissue Engineering (2005)

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See detailSensitivity Analysis of Escherichia coli's Tricarboxilic Acid Cycle under Anaerobic Conditions
Ofiteru, I. R.; Lavric, V.; Allgöwer, F. et al

in Proc. Foundations of Systems Biology in Engineering, FOSBE 2005 (2005)

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See detailEstimated energy balance in the jovian upper atmosphere during an auroral heating event
Melin, H.; Miller, S.; Stallard, T. et al

Poster (2005)

We present an analysis of a series of observations of the auroral/polar regions of Jupiter, carried out between September 8 and 11, 1998, making use of the high-resolution spectrometer, CSHELL, on the ... [more ▼]

We present an analysis of a series of observations of the auroral/polar regions of Jupiter, carried out between September 8 and 11, 1998, making use of the high-resolution spectrometer, CSHELL, on the NASA InfraRed Telescope Facility (IRTF), Mauna Kea, Hawaii; these observations spanned an ``auroral heating event". This analysis combines the measured line intensities and ion velocities with a one-dimensional model of the jovian thermosphere/ionosphere (Grodent et al. 2001). We compute the model line intensities both assuming local thermodynamic equilibrium (LTE) and, relaxing this condition (non-LTE), through detailed balance calculations (Oka et al. 2004), in order to compare with the observations. Taking the model parameters derived, we calculate the changes in heating rate required to account for the modeled temperature profiles that are consistent with the measured line intensities. Comparison of the various heating and cooling terms enables us to investigate the balance of energy inputs into the auroral/polar atmosphere. Increases in Joule heating and ion drag are sufficient to explain the observed heating of the atmosphere; increased particle precipitation makes only a minor heating contribution. But local cooling effects - predominantly H[SUB]3[SUP]+[/SUP][/SUB] radiation-to-space - are shown to be too inefficient to allow the atmosphere to relax back to pre-event thermal conditions. Thus we conclude that this event provides observational, i.e. empirical, evidence that heat must be transported away from the auroral/polar regions by thermally or mechanically driven winds. [less ▲]

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See detailIndirect defence of aphid infested potato : role of terpenes on Episyrphus balteatus behaviour
Francis, Frédéric ULg; Harmel, Nicolas; Almohamad, Raki et al

in Abstract book (2005)

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See detailPotato tuber sprouting and wound-healing: the effect of a catalase inhibitor.
Bajji, M.; Gastiny, F.; Du Jardin, Patrick ULg

in Acta Horticulturae (2005), (684),

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See detailDevelopment of a contact model adapted to incremental forming
Henrard, Christophe ULg; Bouffioux, Chantal ULg; Godinas, A. et al

in Banabic, D. (Ed.) Proceedings of the 8th ESAFORM Conference on Material Forming (2005)

The objective of this article is to present the development of a new method for taking into account the contact between the tool and the blank during incremental forming. First, the need for such a model ... [more ▼]

The objective of this article is to present the development of a new method for taking into account the contact between the tool and the blank during incremental forming. First, the need for such a model is justified. Then, the basic features of the adapted dynamic explicit scheme are presented, followed by the new algorithms proposed and their programming. Finally, some conclusions and perspectives are drawn. [less ▲]

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See detailTempérature et transport : quels effets sur la qualité technologique et hygiénique ?
Clinquart, Antoine ULg

in WAVFH-WB (Ed.) Après-midi d'étude de la section Wallonie-Bruxelles de la World Association of Veterinary Food Hygienists "Le Transport, un sujet chaud" (2005)

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See detailLogiques de champs et habitus journalistique. L’activation de l’État-providence en Belgique
Geuens, Geoffrey ULg

in Durand, Pascal; Dubois, Jacques; Winkin, Yves (Eds.) Le Symbolique et le Social. La Réception internationale de la pensée de Pierre Bourdieu - Actes du colloque international Le Symbolique et le Social. La Réception internationale de la pensée de Pierre Bourdieu (Centre culturel international de Cerisy-la-Salle, 12-19 juillet 2001) (2005)

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See detailMise en évidence de la faille de Marenne sur la carte géologique Aye - Marche-en-Famenne
Barchy, Laurent; Coen-Aubert, Marie; Marion, Jean-Marc ULg et al

Poster (2005)

Revision of the geological map Aye-Marche (Belgium, Wallonia) has highlighted a major tectonic fault known as "Marenne fault". Its presence would explain the increased thickness of the Givetian limestones ... [more ▼]

Revision of the geological map Aye-Marche (Belgium, Wallonia) has highlighted a major tectonic fault known as "Marenne fault". Its presence would explain the increased thickness of the Givetian limestones up to the valley of Ourthe river. [less ▲]

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See detailThe UVES Paranal Observatory Project: a public library of high resolution stellar spectra
Jehin, Emmanuel ULg; Bagnulo, S.; Melo, C. et al

in Hill, V. (Ed.) From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution (2005)

The UVES Paranal Observatory Project (POP), is an ESO public database of about 400 stars whose high quality spectra were obtained with UVES, the high resolution spectrometer of the VLT. All stars were ... [more ▼]

The UVES Paranal Observatory Project (POP), is an ESO public database of about 400 stars whose high quality spectra were obtained with UVES, the high resolution spectrometer of the VLT. All stars were observed with two instrument modes, in order to cover almost completely the optical region (300-1000 nm). The resolving power is about 80000, and for most of the spectra, the typical S/N ratio is 300-500 in the V band. Program stars fall into two groups, stars belonging to open clusters IC2391 and NGC6475, and bright field stars. For field stars, the only selection criterion applied was to cover the largest possible variety of spectral types in the HR diagram, including peculiar objects, e.g., Ap and Bp stars, Wolf-Rayet stars, Be stars, carbon stars and metal poor stars. The spectra have been reduced, coadded and merged and various products can be downloaded from a public area. For each star the final spectrum may be displayed through a dedicated user-friendly Spectral Preview Interface. The database is accessible at http://www.eso.org/uvespop [less ▲]

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See detailDesign and Representation of Suboptimum Methods for Radar Space-Time Adaptive Processing Techniques Using a Canonical Framework
De Grève, Sébastien; Lapierre, Fabian D.; Verly, Jacques ULg

Conference (2005)

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See detailMatrix metalloprotease in bronchoalveolar lavage from healthy and RAO horses in crisis and in remission.
Art, Tatiana ULg; Kirschvink, Nathalie; de Moffaerts, Brieuc et al

in 3rd World Equine Airways Symposium (WEAS) (2005)

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See detailEvaluation of the pulmonary inflammation and bronchial hyperresponsiveness in healthy mice induced by inhaled cyclodextrins
Guéders, Maud ULg; Bertholet, P.; Barillaro, Valery et al

in Journal of inclusion Phenomena and Macrocyclic Chesmistry (2005)

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See detailGenetic predictors of asthma exacerbations among children in the childhood asthma management program
Celedon, J. C.; Van Steen, Kristel ULg; Lange, C. et al

in Conference Abstract Book (2005)

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See detailAlpha-elements in mildly metal-poor stars
Decauwer, H.; Jehin, Emmanuel ULg; Parmentier, G. et al

in Hill, V.; François, P.; Primas, F. (Eds.) From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution (2005)

Accurate relative abundances of light elements (C to Ca) have been obtained in a sample of mildly metal-poor stars (Decauwer et al. 2005). Combined with the results of a previous study (Jehin et al. 1999 ... [more ▼]

Accurate relative abundances of light elements (C to Ca) have been obtained in a sample of mildly metal-poor stars (Decauwer et al. 2005). Combined with the results of a previous study (Jehin et al. 1999), we find different slopes in the correlations between the different alpha-elements. These results can be explained by postulating that the stars exhibiting lower than average alpha/Fe form in low mass clouds, unable to sustain the formation of very massive stars. [less ▲]

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See detailSYNOVIOCYTES BUT NOT ARTICULAR CHONDROCYTES RELEASE FREE RADICALS AFTER REPETITIVE CYCLES OF ANOXIA/REOXYGENATION: AN ELECTRON SPIN RESONANCE STUDY.
Schneider, Nicole ULg; Lejeune, Jean-Philippe ULg; Mouithys-Mickalad, Ange ULg et al

Poster (2005)

Objective : We investigated if short recurrent periods of anoxia/reoxygenation (A/R), mimicking the in vivo conditions of hypoxia, could stimulate the production of free radicals by synoviocytes and ... [more ▼]

Objective : We investigated if short recurrent periods of anoxia/reoxygenation (A/R), mimicking the in vivo conditions of hypoxia, could stimulate the production of free radicals by synoviocytes and chondrocytes. Material and Methods : Synoviocytes (immortalised rabbit line HIG-82 and equine synoviocytes isolated from synovial membranes of the stifle joint) and chondrocytes (isolated from the same equine joint) were cultured for 48 hours. The respiration rate of the cells (107 cells/assay) was studied by oxymetry and the free radical production monitored by electron spin resonance (ESR) in the presence of the spin trap (-[-4-pyridyl 1-oxide]-N-tert butyl nitrone)/ethanol mixture (2%v/v). The A/R consisted of three periods of 20 minutes anoxia, each anoxia period being followed by re-oxygenation. Oxygen consumption by the cells was measured before starting the anoxia/reoxygenation cycles and after each reoxygenation. At the end of the last A/R period, the cells were transferred into the ESR flat cell and in the cavity, and the free radical formation was monitored. Results : The equine chondrocytes showed a low respiration rate, weakly affected by A/R and no production of free radicals (n=3). Synoviocytes showed a higher respiration rate (at least 20 times higher) which was affected by recurrent A/R (decrease of the slope of oxygen consumption), and a free radical production as evidenced by the appearance of the 4-POBN/EtOH adducts (n=6). Conclusions :These observations suggest that synoviocytes, but not chondrocytes, responded to repeated anoxia-reoxygenation conditions by the production of free radicals. Synoviocytes could thus be responsible for the production of free radicals in the joints, what could be an important factor in the onset of osteoarthritis. [less ▲]

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See detailLive at Bar Maldoror: les chants magnétiques de Lautréamont
Claisse, Frédéric ULg; Brogniez, Laurence

in Aron, Paul; Bertrand, Jean-Pierre; Durand, Pascal (Eds.) La Littérature Maldoror (2005)

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See detailUn dispositif d'évaluation d'un nouveau mode d'apprentissage des langues germaniques
Beckers, Jacqueline ULg; Monville, Bertrand

Conference (2005)

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See detailLa cité, les dèmotelè hiera et les prêtres
Pirenne-Delforge, Vinciane ULg

in Dasen, Véronique; Piérart, Marcel (Eds.) Idia kai dèmosia. Les cadres « privés » et « publics » de la religion grecque antique (2005)

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See detailFrom biological signals to music
Arslan, B.; Brouse, A.; Castet, J. et al

in Proceedings of the 2nd International Conference on Enactive Interfaces Enactive05 (2005)

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See detailThe unexpected interaction between the DNA repair protein Ku and metalloprotease 9: a role for Ku in invasion ?.
Paupert, Jenny ULg; Monferran, Sylvie; Dauvillier, Stéphanie et al

Conference (2005)

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See detailIdentification of the parameters of a damage constitutive law for steel at elevated temperature
Castagne, S.; Habraken, Anne ULg

in Banabic, D. (Ed.) Proceedings of the 8th ESAFORM Conference on Material Forming (2005)

This paper presents the methodology and the results of the calibration of an interface damage law using experimental damage analyses and associated finite element simulations. The experimental damage ... [more ▼]

This paper presents the methodology and the results of the calibration of an interface damage law using experimental damage analyses and associated finite element simulations. The experimental damage analyses consist in acoustic tests realised on steel samples in order to determine the apparition of the first crack during compression. Finite elements simulations of these experiments allow the determination of the damage parameters using a reverse method. [less ▲]

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See detailDiversity of Ecosystems and Coastal Ocean CO2 Fluxes
Borges, Alberto ULg

Conference (2005)

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See detailAnalysis of canine and feline uroliths in the Benelux. A retrospective study 1994-2005
de Lovinfosse, T.; Detilleux, Johann ULg; Picavet, P. et al

in Proceedings of the 9th Congress ESVCN (2005)

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See detailLa musique à Liège au XIXe siècle
Pirenne, Christophe ULg

Conference (2005)

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See detailInter-Modal Terminals for Freight
Limbourg, Sabine ULg; Jourquin, Bart

Conference (2005)

The optimal location of terminals and logistic centres is an up-to-date research topic. The first goal of this paper is to outline a method that helps to isolate the best potential locations. The basic ... [more ▼]

The optimal location of terminals and logistic centres is an up-to-date research topic. The first goal of this paper is to outline a method that helps to isolate the best potential locations. The basic idea is to use the flows of commodities and their geographic spreading as input to determine a set of good potential locations for inter-modal terminals on the trans-European networks. This set can then be used in conjunction with already known optimal location models. Some approaches to solve the optimal location problems will be briefly presented. After that, the method used to obtain a detailed O-D matrix for European international freight traffic will be outlined, in addition to a short explanation on the way the demand can be assigned on a multi-modal freight transportation network. The assigned flow will be used as input to compute a set of potential locations. [less ▲]

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See detailModern techniques for flood risk analysis: quasi-3D simulations in a GIS environment
Archambeau, Pierre ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

in Geophysical Research Abstracts (2005), 7(09348),

Human beings have continuously attempted to adapt their environment to their needs. However, many natural phenomena still remain challenging to control and the populations must undergo sometimes heavily ... [more ▼]

Human beings have continuously attempted to adapt their environment to their needs. However, many natural phenomena still remain challenging to control and the populations must undergo sometimes heavily damaging consequences. It is consequently essential to study these phenomena in order to assess their potential hazards. In particular, the scope of the present paper focus on floods. The intense floods met these last years showed the importance of this phenomenon as well as its many devastating effects. Thanks to recent important breakthroughs, both in the field of conceptual and numerical modelling of complex flows and in the calculation power of computers, it is henceforth possible to study the effects of potential floods on the basis of numerical simulations, with an accuracy never reached beforehand. The Laboratory of Applied Hydrodynamics and Hydraulic Constructions (HACH) of the University of Liege has always made this kind of study one of its core competencies, thanks to • the development of modern and powerful modelling tools (quasi-three dimensional software for flow simulation by finite volume), • the use of a broad range of data enabling a proper representation of the studied fields (topography, occupation of the ground...) • the systematic validation of simulation results. These tools are currently intensively used within the framework of a general study of the flood-prone zones of the Walloon area of Belgium, which corresponds to more than 800 km of rivers. [less ▲]

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See detailMaterial Identification Using a Bi-Axial Test Machine
Flores, Paulo; Moureaux, Pierre; Habraken, Anne ULg

in Proceedings of the International Conference on Advances in Experimental Mechanics (2005)

This paper shows the identification of material parameters for a DC06 IF steel sheet of 0.8 mm by mechanical tests. The experimental equipment used consists of a tensile test machine, a bi-axial test ... [more ▼]

This paper shows the identification of material parameters for a DC06 IF steel sheet of 0.8 mm by mechanical tests. The experimental equipment used consists of a tensile test machine, a bi-axial test machine able to perform plane-strain and simple shear tests separately or simultaneously and an optical strain gauge. Tensile, plane-strain and simple shear tests were performed at 0°, 45° and 90° from the sheet rolling direction in order to identify Hill 1948 and Hosford 1979 yield criteria. Two identification methods are used: one based on strain measurements (anistropy coefficients) and the other one based on stress measurements (plastic contours). The results confirm that mechanical tests applying other stress-states than tensile are required to obtain accurate material parameters identification. [less ▲]

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See detailChemical abundances in 43 metal-poor stars
Gustafsson, Bengt; Asplund, Martin; Edvardsson, Bengt et al

in Hill, V.; François, P.; Primas, F. (Eds.) From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution (2005)

We have derived abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Fe, Ni and Ba for 43 metal-poor field stars, mostly stars at the turn-off point and on the subgiant branch, in the interval {-}3.0{[Fe/H ... [more ▼]

We have derived abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Fe, Ni and Ba for 43 metal-poor field stars, mostly stars at the turn-off point and on the subgiant branch, in the interval {-}3.0{[Fe/H]{. The analysis is differential relative to the Sun. Oxygen abundances, with consideration of NLTE effects, were derived from the OI 777.4 nm triplet lines. We find [O/Fe] to gradually increase with decreasing [Fe/H], though considerably slower than has earlier been obtained from OH lines in the UV. A scatter in [O,Mg,Ca,Ti/Fe] at a given [Fe/H] is found and we argue that this scatter is partly real. The deviations from the mean trends of abundance ratios vs [Fe/H] are found to correlate in non-trivial ways for different abundances. Similar trends are found from results of accurate studies by other groups. This seems to give further evidence for the hypothesis that the stars once formed in different subsystems, with different star-formation rates.The paper is in press in A&A, may be obtained as astro-ph/0505118. [less ▲]

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See detailA web-based service for the real time assessment and forecast of Space Weather effects on GNSS applications
Warnant, René ULg; Bavier, Michaël; Lejeune, Sandrine et al

Conference (2005)

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See detailA Virtual Desktop's First evaluation for an Augmented Design Process
Safin, Stéphane ULg; Boulanger, Christelle; Leclercq, Pierre ULg

in Proceedings of Virtual Concept 2005. (2005)

Many CAD tools already allow to design and directly manipulate ideas in a digital way. However, designers still use pen and paper during the early design phase of their projects. Indeed, existing CAD ... [more ▼]

Many CAD tools already allow to design and directly manipulate ideas in a digital way. However, designers still use pen and paper during the early design phase of their projects. Indeed, existing CAD tools constraint creative work. There is a need for a spontaneous human computer interaction in design computing. In order to answer to this need, we develop an integrated aided design tool based on a Virtual Desktop. The designer sits in front of a classical desk where s/he can design and manipulate drawings and generated models. This paper describes the observations made during experiment about Virtual Desktop’s use by a designer. The experiment demonstrates that the immersive aspect of our system interface modifies the relationship between the designer and his/her model and, by the way, how this relation generates a new type of augmented interaction. [less ▲]

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See detailA model for the generalized parton distribution of the pion
Stassart, Pierre ULg; Bissey, F.; Cudell, Jean-René ULg et al

in AIP Conference Proceedings (2005), 756

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See detailOscillator Models and Collective Motion: Splay State Stabilization of Self-Propelled Particles
Paley, Derek; Leonard, Naomi; Sepulchre, Rodolphe ULg

in Proceedings of the 44th IEEE Conference on Decision and Control and European Control Conference (2005)

This paper presents a Lyapunov design for the stabilization of collective motion in a planar kinematic model of N particles moving at constant speed. We derive a control law that achieves asymptotic ... [more ▼]

This paper presents a Lyapunov design for the stabilization of collective motion in a planar kinematic model of N particles moving at constant speed. We derive a control law that achieves asymptotic stability of the splay state formation, characterized by uniform rotation of N evenly spaced particles on a circle. In designing the control law, the particle headings are treated as a system of coupled phase oscillators. The coupling function which exponentially stabilizes the splay state of particle phases is combined with a decentralized beacon control law that stabilizes circular motion of the particles in the splay state formation around the center of mass of the group. [less ▲]

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See detailMorphological and mechanical characterization of porous structures with micro-CT
Kerckhofs, Greet ULg; Wevers, Martine; Schrooten, Jan

in Abstract book SkyScan User Meeting 2005 (2005)

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See detailCommon Agricultural Policy and the environment : are they compatible ?
Burny, Philippe ULg

in Universitatea "Babes-Boliay" Cluj-Napoca (Ed.) Simpozion national "Contributii stiintifice în tehnologii si echipamente pentru evaluarea si protectia mediului" (2005)

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See detailRetards de Sartre
Denis, Benoît ULg

in Etudes Sartriennes (2005), (10), 189-209

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See detailHabitat préférentiel de trois espèces d odontocètes teuthophages en Méditerranée Nord Occidentale.
Praca, Emilie; Gannier, A.; Das, Krishna ULg

Conference (2005)

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See detailConsequences of fish introductions on paedomorphic newts (Triturus alpestris and T. helveticus)
Denoël, Mathieu ULg; Dzukic, Georg; Kalezic, Milos

Poster (2005)

Fish stocking is largely recognized as a major thread to amphibian populations. Although it acts at a local level, it is widespread at a world scale. Despite this good knowledge, the effect of fish on ... [more ▼]

Fish stocking is largely recognized as a major thread to amphibian populations. Although it acts at a local level, it is widespread at a world scale. Despite this good knowledge, the effect of fish on alternative phenotypes has only been described in a few local studies. Our aim was to report on the loss of intraspecific heterochrony as a loss to diversity in determining the consequences of fish introductions on paedomorphs (morphs retaining gills at the adult stage) of two European species of newts. We surveyed almost all the main known paedomorphic populations of the Alpine (Triturus alpestris) and palmate (T. helveticus) newts, which all but one initially occupied fishless ponds and lakes in France, Italy, Slovenia, Bosnia, Montenegro, and Greece. Exotic fish were found in almost half of the studied aquatic habitats. Introductions involved several ornamental and large predatory species of fish. At all sites, in which fish were introduced, paedomorphs disappeared and metamorphs declined. The largest known populations of newts, including some endemic subspecies, were concerned. If measures are not taken to stop fish stocking, protect paedomorphs as conservation units, and restore natural habitats, all the largest paedomorphic populations may disappear in the near future. [less ▲]

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See detailAphid adaptation to plant defence system
Francis, Frédéric ULg; Harmel, Nicolas ULg; Gerkens, Pascal et al

in Abstract book (2005)

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See detailLe français en crise et en cause dans l'enseignement supérieur au Maroc (synthèse)
Defays, Jean-Marc ULg

in Jaafar, Khalid (Ed.) Actes des Journées d'études : "Langue, Communication et Informatique" (2005)

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See detailTwo competing linear models for flexible robots: Comparison, experimental validation, and refinement
Krauss, Ryan; Bruls, Olivier ULg; Book, Wayne J

in Proceedings of the American Control Conference (2005)

The modeling of a rigid robot attached to a flexible base is addressed in this work. Two approaches are compared: the Finite Element Method (FEM) and the Transfer Matrix Method (TMM). Initially, idealized ... [more ▼]

The modeling of a rigid robot attached to a flexible base is addressed in this work. Two approaches are compared: the Finite Element Method (FEM) and the Transfer Matrix Method (TMM). Initially, idealized models of the hydraulic actuators are used that do not include flexible effects in the joints. Those models greatly overestimate the second natural frequency of the system, therefore the identification of local flexibilities in the joints is pursued to improve the results. The very good agreement between both approaches, and their ability to represent the physical system (once joint flexibility is included), confirms their efficiency and relevance in this context. [less ▲]

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See detailLe Dialogue philosophique comme genre inséré : le cas des Contes
Tilkin, Françoise ULg

in Revue Voltaire (2005), 5

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See detailADAMTS-2, a metalloproteinase containing a disintegrin domain and thrombospondin type I repeats, a new regulator of angiogenesis
Dubail, Johanne ULg; Kesteloot, Frédéric ULg; Motte, Patrick ULg et al

in Journal of Vascular Research (2005), 42(Suppl. 2), 76

Enzymes of the ADAMTS family are closely related to MMPs and ADAMs. They further contain specific domains, such as the “ThromboSpondin type I” (TSP1) repeats able to strongly repress angiogenesis. The ... [more ▼]

Enzymes of the ADAMTS family are closely related to MMPs and ADAMs. They further contain specific domains, such as the “ThromboSpondin type I” (TSP1) repeats able to strongly repress angiogenesis. The primary function of ADAMTS-2 is to process procollagen type I, II, III and V into mature molecules by excising the amino-propeptide. We further hypothesized that it could modulate angiogenesis through its TSP1 repeats. Recombinant ADAMTS-2 induced morphological changes in HUVEC and HMEC cultured on gelatin, collagen and fibronectin. It also significantly reduced their proliferation, attachment and spreading. Similar effects were observed when using inactive ADAMTS-2 mutated at the Zn++-binding catalytic site. ADAMTS-2 did not alter the initial steps of formation of capillary-like structures by HUVEC in vitro. However, these structures appeared more rapidly disrupted in presence of ADAMTS-2 than in control conditions. Immunostaining with monoclonal antibodies against ADAMTS-2 indicate that it is tightly immobilized at the endothelial cell surface by an heparin-sensitive binding. With the aim to identify mechanism(s)leading to the modulation of angiogenesis by ADAMTS-2, we investigated various signalling pathways critical for EC. Phosphorylation status of FAK was not altered by ADAMTS-2 while a downregulation of phosphorylation of p42/44 MAPK was observed. Our data suggest that ADAMTS-2 reduces angiogenesis by regulating endothelial cell adhesion and proliferation, and by alteration of the stability of the capillary-like structures. These effects do not seem to be mediated by an integrin-dependent signaling pathway. Choroidal neovascularization induced in TS2+/+ or TS2-/- mice by LASER burns was used as in vivo model. Several genes involved in the healing and angiogenesis processes (fibrillar collagens, VEGF, TGF, CTGF, …) were not differently regulated in TS2+/+ and TS2-/- mice 5 days after the LASER impact. Wound capillaries visualized by confocal microscopy after FITC-conjugated dextran injection, were significantly increased (p<0,05) in TS2-/- mice suggesting an increased angiogenic response in the KO animals. The results obtained in in vivo and in vitro models indicate that ADAMTS-2 is involved in the control of angiogenesis. Additional investigations are being performed to determine which domain(s) of the molecule is (are) antiangiogenic and to identify the mechanism(s) underlying this regulatory function. [less ▲]

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See detailApplication of XFEM to image-guided surgery
Vigneron, Lara M.; Duflot, Marc P.; Verly, Jacques ULg et al

Conference (2005)

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See detailMitigation of seismic soft storey failures of RC structures by composite steel-concrete columns
Plumier, André ULg; Doneux, Catherine; Stoychev, Lyubomir

in Proceedings of the EUROSTEEL Conference 2005 (2005)

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See detailA new technique to prevent vocal folds scars
FINCK, Camille ULg

in Laryngoscope (2005), 15

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See detailVitamin D inadequacy : global prevalence and skeletal implications
Reginster, Jean-Yves ULg; Richy, F.; Rabenda, Véronique ULg et al

in BONE (2005), 36(S2), 462

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See detailEtude comparative des performances en contraste sur vue planaire de 32 détecteurs de 20 caméras scintigraphiques.
Seret, Alain ULg

in Médecine Nucléaire : Imagerie Fonctionnelle et Métabolique (2005), 29(11), 711

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See detailContraste et sensibilité lors de la scintigraphie thyroïdienne pratiquée avec les neuf caméras des trois principaux centres hospitaliers liégeois.
Seret, Alain ULg

in Médecine Nucléaire : Imagerie Fonctionnelle et Métabolique (2005), 29(11), 711

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See detailAn epidemiological study of canine obesity
Lhoest, E.; Detilleux, Johann ULg; Vandenheede, Marc ULg et al

Conference (2005)

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See detailThe Use of Cryogenic Zone Compression for the Measurement of POPs in Human Serum at Attogram Levels by GCxGC/ID-HRMS
Patterson, Donald G.; Welch, Susan; Turner, Wayman et al

in Organohalogen Compounds (2005), 67

Detailed reference viewed: 37 (2 ULg)
See detailA variational framework for nonlinear viscoelastic and viscoplastic models in finite deformation regime
Stainier, Laurent ULg; FANCELLO, E.; Ponthot, Jean-Philippe ULg

in MECOM 2005, , Mecanica Computational (2005)

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See detailLocal second gradient models and damage mechanics: application to concrete
Kotronis, Panagiotis; Chambon, René; Mazars, Jacky et al

Conference (2005)

The non linear behaviour of concrete is often simulated using local constitutive models based on the continuous damage mechanics theory. This approach however is not adequate for post-localisation studies ... [more ▼]

The non linear behaviour of concrete is often simulated using local constitutive models based on the continuous damage mechanics theory. This approach however is not adequate for post-localisation studies with strain softening. It is well known that spurious mesh dependence appears in computations and cases of failure without energy dissipation. In order to improve computational performance second grade local models are chosen to include a meso scale in the continuous damage model. This approach differs from the nonlocal one in the sense that it is a local theory with higher order stresses depending only on the local cinematic history. 1D numerical computations with concrete specimens are presented. Using a random initialisation of the iterative solver of the equilibrium equation we search the existence of various solutions for the boundary value study and also to see if the second grade term regularise the problem giving results that are mesh insensitive and objective. [less ▲]

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See detailField scale N-management : soil/plant diagnostic tools applied within the Agricultural surface survey (Belgium)
Courtois, P.; Destain, Jean-Pierre ULg; Goffart, J. P. et al

in N management in agrosystems in relation to the Water Framework directive (2005)

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See detailL'impact des changements vécus par les travailleurs sur le bien-être au travail : Analyse de la base de données Flexihealth.
Hansez, Isabelle ULg; Grisard, Anne; De Keyser, Véronique ULg et al

in Battistelli, A.; Depolo, M.; Fraccaroli, F. (Eds.) La qualité de vie au travail dans les années 2000. (2005)

La recherche ‘Flexihealth’, portant sur 4961 travailleurs belges, vise à établir un lien entre les changements majeurs, la perception des modifications des conditions de travail qu’ils impliquent et le ... [more ▼]

La recherche ‘Flexihealth’, portant sur 4961 travailleurs belges, vise à établir un lien entre les changements majeurs, la perception des modifications des conditions de travail qu’ils impliquent et le bien-être des travailleurs. Les résultats montrent que les changements vécus ont un impact négatif significatif non seulement sur les conditions de travail mais aussi sur le bien-être des travailleurs. Ce résultat doit toutefois être nuancé selon le type de changement vécu. En ce sens, le changement de supérieur et le changement de tâches sont davantage préjudiciables pour les travailleurs. L’âge et la catégorie professionnelle des travailleurs sont également des variables considérées pour nuancer ces résultats. Ainsi, les travailleurs âgés de 46 à 55 ans ainsi que les ouvriers constituent des groupes à risques. [less ▲]

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See detailNon-classical Radiation from Two Atoms and Quantum Search Algorithms
Agarwal, G. S.; von Zanthier, J.; Bastin, Thierry ULg

Conference (2005)

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See detailA STEP: An Antarctica Search for Transiting Extrasolar Planets
Fressin, F.; Guillot, T.; Bouchy, F. et al

in Protostars and Planets V (2005)

Not available

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See detailAnisotropic yield locus of ultrafine-grained aluminium produced by Equal Channel angular extrusion
El Houdaigui, Fouad; Duchene, Laurent ULg; Habraken, Anne ULg et al

in Onate, E.; Owen, D. R. J. (Eds.) Proceedings of the VIII International Conference on Computational Plasticity (COMPLAS VIII) (2005)

Macroscopic tensile, compression and torsion tests have been performed as well as texture measurements. Based on these data a phenomenological yield locus has been defined to describe the behaviour of an ... [more ▼]

Macroscopic tensile, compression and torsion tests have been performed as well as texture measurements. Based on these data a phenomenological yield locus has been defined to describe the behaviour of an ultrafine-grained aluminum obtained by ECAE. [less ▲]

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See detailEfficient and robust simulation of tissue differentiation in fracture healing
Gerisch, Alf; Geris, Liesbet ULg

in Proceedings of the European Conference on Mathematical and Theoretical Biology (2005)

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See detailUse of Concrete Recycled Aggregates in Roller Compacted Concrete
Delhez, Pierre; Willem, Xavier; Michel, Frédéric ULg et al

in Vasquez, E.; Hendricks, Ch F; Hansen, G. (Eds.) Recycled Materials in Building and Structures (2005)

Construction waste management is a quite important economical and environmental deal for our societies. More than 2 million tons are annually produced in Wallonia, South Region of Belgium, and numerous ... [more ▼]

Construction waste management is a quite important economical and environmental deal for our societies. More than 2 million tons are annually produced in Wallonia, South Region of Belgium, and numerous valorisations have been already promoted. Roller Compacted Concrete is a special dry concrete made of aggregates, water and low quantity of cement, laid down and compacted like a soil, for the construction of massive structures like dams or large horizontal surfaces like road foundations. The topic of this research is the replacement of natural aggregates by concrete recycled aggregates in the composition of the concrete. Characteristics of aggregates are of prime importance for the quality of the concrete: Los Angeles, water absorption and specific gravity are measured. Design method, type of hydraulic binder and proportions have to be adapted. Final and long term properties have also been evaluated. [less ▲]

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See detailSome effects of limestone fillers as a partial substitute for cement in mortar composition
Courard, Luc ULg; Degeimbre, Robert ULg; Darimont, Anne ULg et al

in Banthia, N. (Ed.) Third International Conference on construction materials: performance, innovations and structural implications (2005)

Limestone filler is a raw material that is already used in several applications like paints, bricks, bituminous mixes, … Moreover, and particularly in Belgium, classical additions like fly ashes and blast ... [more ▼]

Limestone filler is a raw material that is already used in several applications like paints, bricks, bituminous mixes, … Moreover, and particularly in Belgium, classical additions like fly ashes and blast furnace slags become rare. There is a need for new additions that could have a positive effect on the properties of the fresh and hardened cementitous composites. Substitution of limestone filler in Portland cement and blast furnace slag cement has been realized between 15 and 30% in mass. In addition to the characterization of the powder itself – specific mass, specific surface and laser granulometry – the problem of the water demand has been analysed: it seems that it remains constant with the substitution rate. Electric conductivity has also been performed in order to study the evolution of the “dormant” period. Tests on hardened mortars concerned the mechanical properties, the evolution of the porosity and the durability. The K factor indicates a higher value and the porosity seems to be better in the case of blast furnace slags cements, partially due to a very low diameter of the slags particles. Oxygen permeability doesn’t seem to be influenced by the filler while capillary absorption increases with substitution rate. Finally, chloride penetration, sulphate resistance and carbonation rate show quite interesting behaviours, leading to the conclusion that this material needs again more investigations in order to define optimum application conditions in cementitous matrixes [less ▲]

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See detailDe invloed van mechanische parameters op de weefselrespons bij immediaat belaste titanium implantaten
Vandamme, Katleen; Duyck, Joke; Van Oosterwyck, Hans et al

in Proceedings van het Congres Verbond der Vlaamse Tandartsen (2005)

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See detailElectrochemistry as a correlation tool candidate with catalytic activities in ruthenium(II)-catalysed atom transfer radical polymerisation ?
Richel, Aurore ULg; Tutusaus, Oscar; Viñas, Clara et al

in Polymer Preprints (2005), 46(2), 227-228

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See detailPaysage et projets urbains
Teller, Jacques ULg

in Actes du Colloque de la CPDT – Territoire, urbanisation et paysages du 19 novembre 2004 (2005)

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See detailEvaluation de la condition sportive du cheval de complet sur le terrain
Van Erck, Emmanuelle; de Moffaerts, Brieuc; Art, Tatiana ULg et al

in Proceedings du Congrès Annuel A.V.E.F. (2005)

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See detailEffect of substance 101333-3 on emphysema and MMP activity in a model of cadmium-induced emphysema
Fievez, Laurence ULg; Kirschvink, N.; Provins, L. et al

in European Respiratory Journal (2005), 579s

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See detailLinking biochemical and biophysical variables derived from imaging spectrometers to ecological models - The HyEco'04 Group Shoot.
Kooistra, L; Clevers, J; Schaepman, M et al

in Zagajewski, B; Sobczak, M; Wrzesien, M (Eds.) New Quality in Environmental Studies. Proceedings of 4th EARSeL Workshop on Imaging Spectroscopy (2005)

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See detailCadmium inhalation-induced emphysema is resistant to glucocorticoids
Fievez, Laurence ULg; Kirschvink, N.; Belleflamme, M. et al

in European Respiratory Journal (2005)

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See detailFDG-PET imaging for assessing pleural malignancy : a semi-quantitative analysis.
LAROCK, Marie-Paule ULg; DUYSINX, Bernard ULg; NGUYEN, D. et al

in Journal of Nuclear Medicine (The) (2005), 46(SUPPL), 426

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See detailUse of soil properties and major element composition to predict background levels of trace elements in soils
Colinet, Gilles ULg; Carletti, Isabelle; Bock, Laurent ULg

Conference (2005)

The usefulness of various soil parameters to predict naturally occurring levels of some metallic trace elements (MTE) in soils has been studied for some agricultural and forest soils of Southern Belgium ... [more ▼]

The usefulness of various soil parameters to predict naturally occurring levels of some metallic trace elements (MTE) in soils has been studied for some agricultural and forest soils of Southern Belgium. The driving factors of the content in Cu, Ni, Pb, and Zn were investigated through multi-scale comparisons. This paper deals with multivariate and regression analysis of the results. [less ▲]

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See detailMolecular investigation to identity of phytoplasma associated with pear and apricot trees in Tunisia
Aldaghi, M.; Kummert, J.; Roussel, S. et al

Poster (2005)

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See detailProlactinomas
Ciccarelli, A.; Beckers, Albert ULg

in 14th EFES Postgraduate Course in Clinical Endocrinology - Abstract book (2005)

See detailA multicenter collaborative study to measure the prevalence of pituitary disease : methodology and preliminary findings
Daly, Adrian ULg; Petrossians, Patrick ULg; Murat, A. et al

in 9th International Pituitary Congress - Abstract book (2005)

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See detailUnsupervised learning of visual feature hierarchies
Scalzo, Fabien; Piater, Justus ULg

in Machine Learning and Data Mining in Pattern Recognition (2005)

We propose an unsupervised, probabilistic method for learning visual feature hierarchies. Starting from local, low-level features computed at interest point locations, the method combines these primitives ... [more ▼]

We propose an unsupervised, probabilistic method for learning visual feature hierarchies. Starting from local, low-level features computed at interest point locations, the method combines these primitives into high-level abstractions. Our appearance-based learning method uses local statistical analysis between features and Expectation-Maximization to identify and code spatial correlations. Spatial correlation is asserted when two features tend to occur at the same relative position of each other. This learning scheme results in a graphical model that constitutes a probabilistic representation of a flexible visual feature hierarchy. For feature detection, evidence is propagated using Belief Propagation. Each message is represented by a Gaussian mixture where each component represents a possible location of the feature. In experiments, the proposed approach demonstrates efficient learning and robust detection of object models in the presence of clutter and occlusion and under view point changes. [less ▲]

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See detailNon destructive in-depth profile analysis of ancient patina. A necessary step for understanding their history.
Mathis, François ULg; Aucouturier, Marc; Descamps, Sophie et al

Poster (2005)

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See detailFinite element simulations of the swift effect
Duchene, Laurent ULg; El Houdaigui, Fouad; Habraken, Anne ULg

in Bariani, P. F. (Ed.) Proceedings of the ICTP 2005 International Conference on Technology of Plasticity (2005)

Numerical simulations of the experimental free-end torsion tests [1] of copper cylindrical bars were analysed in the present paper. The self-made Finite Element (FE) code Lagamine with polycrystal ... [more ▼]

Numerical simulations of the experimental free-end torsion tests [1] of copper cylindrical bars were analysed in the present paper. The self-made Finite Element (FE) code Lagamine with polycrystal plasticity models computed numerical prediction of the Swift effect, i.e. the lengthening of the cylinder during the torsion. The used constitutive law was coupled with two plastic crystal models, taking or not into account strain rate effect. Results such as axial strain and predicted textures were analysed. The ones obtained for shear strains lower than 1.0 were in good agreement with experiments; while, for shear strains larger than 1.0, the FE results were currently unfair. A research about remeshing is in progress to improve the accuracy of the results for large shear strains. [less ▲]

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See detailMamluk Era Documentary Studies: The State of the Art
Bauden, Frédéric ULg

in Mamlūk Studies Review (2005), IX(1), 15-60

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