References of "Scientific congresses and symposiums"
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See detail"La prescription acquisitive immobilière"
Lecocq, Pascale ULg

in Lecocq, Pascale; Engels, Christian (Eds.) Chronique de droit à l'usage des juges de paix et de police 2007 (2007, March)

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See detailAnomalies of tolerance in glucose in schizophrenic patients treated with antipsychotics of second generation: 3 months prospective comparative study
Scheen, André ULg; De Hert, M.; Hanssens, L. et al

in Diabetes & Metabolism (2007, March), 33(Sp. Iss. 1), 129

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See detailEarly colonization of Posidonia oceanica (L.) Delile by epiphytes: Comparison between natural and artificial seagrass leaves
Pete, Dorothée ULg; Gobert, Sylvie ULg; Lepoint, Gilles ULg et al

in Pergent-Martini, Christine; El Asmi, Souha; Le Ravallec, Célia (Eds.) Proceedings of the third Mediterranean symposium on marine vegetation (2007, March)

Posidonia oceanica is an important marine Magnoliophyta of the Mediterranean coastal zone that can form dense meadows. The leaves of this seagrass are colonized by a lot of organisms, from bacteria to ... [more ▼]

Posidonia oceanica is an important marine Magnoliophyta of the Mediterranean coastal zone that can form dense meadows. The leaves of this seagrass are colonized by a lot of organisms, from bacteria to polychaetes and algae. However, the early stages of colonization are not well known. A preliminary is proposed to examine the nine first days of colonization by epiphytes on natural leaves and on Artificial Seagrass Units (ASUs). Aims of this work were to understand which species are the first to set up, to compare colonization on both leaves and to determine the interest of ASUs in ecological studies. It was shown that the setting up of epiphytes on the bases of both leaves is rapid (first algae on the second day) but the number of organisms increases quicker on ASUs than on natural leaves and on the smooth faces than the rough ones. Shannon-Wiener diversity and evenness were higher for the P. oceanica leaves and the use of Bray-Curtis similarity index showed that colonisation is not similar (between 20 and 30 % similarity) on both leaves for the same day. It can be explained by the lower colonization rate of natural leaves. This lower rate is probably due to a less developed biofilm on natural leaves than on ASUs, to a difficult access to the bases of P. oceanica leaves for epiphytes and microoganisms, and the production of phenol compounds by the plant. Even if ASUs used here do not seem to be similar to natural leaves in early stages of colonization, they could be used in ecological studies thanks to their rapid covering by epiphytes. [less ▲]

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See detailSTOPP (STudy on Osteoarthritis Progression Prevention): chondroitin sulfate reduces the progression of joint space narrowing in knee OA
Reginster, Jean-Yves ULg; Vignon, E.; Uebelhart, D. et al

in Osteoporosis International (2007, March), 18(Suppl.1), 187-188

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See detailRimonabant improves glucose tolerance in the overweight or obese non-diabetic patient: analysis of the RIO-Europe and RIO-Lipids studies
Scheen, André ULg; Despres, J. P.; Ziegler, O. et al

in Diabetes & Metabolism (2007, March), 33(Sp. Iss. 1), 68

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See detailLow dietary calcium intake in patients treated for osteoporosis
Reginster, Jean-Yves ULg; Imschoot, J.

in Osteoporosis International (2007, March), 18(Suppl.1), 132

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See detailStrontium ranelate prevents spine osteoarthritis progression in patients with prevalent spinal osteoarthritis
Bruyère, Olivier ULg; Delferriere, Danielle; Roux, Christian et al

in Osteoporosis International (2007, March), 18(Suppl1), 16-17

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See detailVitamin D inadequacy in Belgian postmenopausal women
Neuprez, Audrey ULg; Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Osteoporosis International (2007, March), 18(Suppl.1), 123

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See detailLow incidence of osteoporosis treatment after hip fracture
Rabenda, Véronique ULg; Mertens, Raf; Fabri, Valérie et al

in Osteoporosis International (2007, March), 18(Suppl.1), 72-73

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See detailAdherence to bisphosphonates therapy and hip fracture risk in osteoporotic women
Rabenda, Véronique ULg; Reginster, Jean-Yves ULg

in Osteoporosis International (2007, March), 18(Suppl.1), 19-20

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See detailIntermittent intravenous (i.v.) ibandronate injections are more effective than an established daily oral regimen: DIVA 2-year results
Czerwinski, E.; Reginster, Jean-Yves ULg; Jonkanski, I. et al

in Osteoporosis International (2007, March), 18(Suppl.1), 127

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See detailCalcium daily food intake is very low in European postmenopausal women
Bruyère, Olivier ULg; De Cock, Caroline; Neuprez, Audrey ULg et al

in Osteoporosis International (2007, March), 18(Suppl.1), 125

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See detailIntroduction and welcome
Reginster, Jean-Yves ULg

in Osteoporosis International (2007, March), 18(Suppl.1), 182-183

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See detailOral ibandronate (150 mg) continues to be effective and well tolerated when administered monthly: the mobile study long-term extension
Stakkestad, J. A.; Lorenc, R.; Czerwinski, E. et al

in Osteoporosis International (2007, March), 18(Suppl.1), 135-136

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See detailThe role of deformation in the bouncing droplet problem
Terwagne, Denis ULg; Gilet, Tristan ULg; Dorbolo, Stéphane ULg et al

Poster (2007, March)

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See detailA role for the transcriptional complex elongator in cell migration and spreading
Creppe, C.; Close, Pierre ULg; Cornez, I. et al

Poster (2007, March)

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See detailImplantation des cultures
Bodson, Bernard ULg; Roisin, Christian; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux (2007, February 28)

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See detailLa fumure azotée
Destain, Jean-Pierre ULg; Couvreur, Luc; Herman, Jean-Luc et al

in Livre Blanc: Céréales - Gembloux (2007, February 28)

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See detailLes régulateurs de croissance
Vancutsem, Françoise ULg; Monfort, Bruno; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux (2007, February 28)

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See detailLa langue et le réel. Réflexions sur la motivation iconique
Polis, Stéphane ULg

Conference (2007, February 28)

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See detailQualité: Aperçu de l'année écoulée - Récolte 2006: pire, ça n'existe peut être pas!
Sinnaeve, Georges; Paridaens, A. M.; Lenartz, J. et al

in Livre Blanc: Céréales - Gembloux (2007, February 28)

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See detailL'influence de l'attitude des soignants dans la gestion de l'anxiété chez les patients/ L'influence des lieux et de l'architecture sur l'anxiété de la personne hospitalisée
Roosen, Marie ULg

in Bulletin d'Education du Patient (2007, February 27), 25(2),

Après un texte introductif inspiré de l'expérience de l'auteur comme patient et accompagnant, l'article décrit tous les facteurs qui influent sur l'anxiété des personnes hospitalisées. L'habillement, l ... [more ▼]

Après un texte introductif inspiré de l'expérience de l'auteur comme patient et accompagnant, l'article décrit tous les facteurs qui influent sur l'anxiété des personnes hospitalisées. L'habillement, l'attitude, le toucher, la gestion de l'espace et du temps, tous ces éléments ont leur importance dans l'interaction entre le professionnel et le patient et dans la gestion de l'anxiété de ce dernier. Une seconde partie est consacrée à l'influence des lieux et de l'architecture sur l'anxiété de la personne hospitalisée. [less ▲]

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See detailWhen Mass Spectrometry meets Spectroscopy: A Different Perspective on Ion Photodissociation
Gabelica, Valérie ULg

Conference (2007, February 27)

Photodissociation methods are more and more widely used in analytical mass spectrometry as an alternative to collision-induced dissociation. A well known example is infrared multiphoton dissociation ... [more ▼]

Photodissociation methods are more and more widely used in analytical mass spectrometry as an alternative to collision-induced dissociation. A well known example is infrared multiphoton dissociation (IRMPD) with CO2 lasers (wavelength 10.6 µm), which is often preferred to SORI-CID in FTICR mass spectrometers. IR photons are absorbed by the vibrational modes of the ion, and this vibrational energy is redistributed all over the molecule. The fragmentation channels observed are usually the same as for CID. Recently, new possibilities offered by UV lasers of fixed wavelength (i.e. 157 nm or 193 nm) for peptide fragmentation were described. On the contrary to IRMPD, irradiation at these UV wavelengths gives rise to fragmentation channels which are unprecedented in CID, suggesting that photochemical reactions take place. The prerequisite for ion photodissociation is photon absorption. In the infrared, photon absorption results in the excitation of vibrational modes. Anharmonic coupling of the excited vibrational modes with other vibrational modes of the ion results in a rapid intramolecular vibrational energy redistribution (IVR). The energy of an IR photon is too low for the ion to dissociate (0.117 eV/photon for a 10.6 µm CO2 laser). Multiple cycles of absorption and IVR are necessary for IR photodissociation to occur (hence the term multiphoton). Because the first step in photodissociation is photon absorption, the recording of the photodissociation yield as a function of the photon wavenumber gives information on the vibrational modes of the ion. This is the basic principle of infrared spectroscopy experiments inside the mass spectrometer. This technique will be illustrated by a recent example on DNA single strands and quadruplex structures. The shifting of the vibrational frequencies corresponding to guanine C=O stretch gives information on the base pairing in the DNA ion in the gas phase. The situation is somewhat different with UV photons, which may lead to either electronic excitation of the ions or direct electron ejection. Electronic excited states may evolve in different ways: (1) Internal conversion to a vibrationally excited electronic ground state. Resulting fragments would then be similar to CID and IRMPD. This process can be multiphotonic and could be coined UVMPD. (2) Electron autodetachment, leading to the formation of radicals that can be further fragmented to obtain ECD-like or EDD-like fragments. (3) Photochemical reactions giving rise to unprecedented fragmentation channels. In all three cases, product ion yield is conditioned by photon absorption by an electronic state, meaning that UV spectroscopy of gas-phase ions can be performed with a mass spectrometer. We recently explored the effects of photon absorption on multiply charged DNA anions. Depending on the photon wavelength and on the chromophores, all three situations could be observed. Electron photodetachment is the major channel observed when using wavelengths corresponding to DNA base absorption.1,2 When irradiated at proper wavelength, chromophoric DNA ligands also give rise to electron photodetachment. UV-visible spectra of the DNA duplexes and complexes were recorded and compared with solution-phase spectra. Finally, a porphyrin ligand gives rise to specific fragmentation pathways when irradiated at 450 nm, while photodetachment is observed at 260 nm. The most recent results will be presented and discussed. 1. Gabelica, V.; Tabarin, T.; Antoine, R.; Rosu, F.; Compagnon, I.; Broyer, M.; De Pauw, E.; Dugourd, P. Electron Photodetachment Dissociation of DNA Polyanions in a Quadrupole Ion Trap Mass Spectrometer. Anal. Chem. 2006, 78 (18), 6564. 2. Gabelica, V.; Rosu, F.; Tabarin, T.; Kinet, C.; Antoine, R.; Broyer, M.; De Pauw, E.; Dugourd, P. Base-Dependent Electron Photodetachment from Negatively Charged DNA Strands upon 260-nm Laser Irradiation. J. Am. Chem. Soc. 2007, accepted for publication. [less ▲]

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See detailSecondary dispersal by dung beetles of seeds primarily dispersed by tamarins
Culot, Laurence ULg

Conference (2007, February 22)

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See detailImpact des mesures judiciaires alternatives pour les consommateurs de drogues
Fincoeur, Bertrand ULg

Conference (2007, February 21)

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See detailInternational Foundation for Research in Paraplegia
Martin, Didier ULg

Conference (2007, February 20)

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See detailCompiling polymorphic miRNA-target interactions: the Patrocles database.
Hiard, Samuel ULg; Tordoir, Xavier ULg; Coppieters, Wouter ULg et al

Poster (2007, February 15)

Using positional cloning, we have recently identified the mutation responsible for muscular phenotype of the Texel sheep. It is located in the 3’UTR of the GDF8 gene - a known developmental repressor of ... [more ▼]

Using positional cloning, we have recently identified the mutation responsible for muscular phenotype of the Texel sheep. It is located in the 3’UTR of the GDF8 gene - a known developmental repressor of muscle growth - and creates an illegitimate target site for miRNA expressed in the same tissue. This causes miRNA-mediated translation inhibition of mutant GDF8 transcripts which leads to muscle hypertrophy. We followed up on this finding by searching for common polymorphisms and mutations that affect either (i) RNAi silencing machinery components, (ii) miRNA precursors or (iii) target sites. These might likewise alter miRNA-target interaction and could be responsible for substantial differences in gene expression level. They have been compiled in a public database (“Patrocles”: www.patrocles.org), where they are classified in (i) DNA sequence polymorphisms (DSP) affecting the silencing machinery, (ii) DSP affecting miRNA structure or expression and (iii) DSP affecting miRNA target sites. DSP from the last category were organized in four classes: destroying a target site conserved between mammals (DC), destroying a non-conserved target site (DNC), creating a non-conserved target site (CNC), or shifting a target site (S). To aid in the identification of the most relevant DSP (such as those were a target site is created in an antitarget gene), we have quantified the level of coexpression for all miRNA-gene pairs. Analysis of the numbers of Patrocles-DSP as well as their allelic frequency distribution indicates that a substantial proportion of them undergo purifying selection. The signature of selection was most pronounced for the DC class but was significant for the DNC and CNC class as well, suggesting that a significant proportion of non-conserved targets is truly functional. The Patrocles database allowed for the selection of DSP that are likely to affect gene function and possibly disease susceptibility. The effect of these DSP is being studied both in vitro and in vivo. In conclusion, Patrocles-DSP could be widespread and underlie an appreciable amount of phenotypic variation, including common disease susceptibility. [less ▲]

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See detailPREDetector : Prokaryotic Regulatory Element Detector
Hiard, Samuel ULg; Rigali, Sébastien ULg; Colson, Séverine ULg et al

Poster (2007, February 15)

Background: In the post-genomic area, in silico predictions of regulatory networks are considered as a powerful approach to decipher and understand biological pathways within prokaryotic cells. The ... [more ▼]

Background: In the post-genomic area, in silico predictions of regulatory networks are considered as a powerful approach to decipher and understand biological pathways within prokaryotic cells. The emergence of position weight matrices based programs has facilitated the access to this approach. However, a tool that automatically estimates the reliability of the predictions and would allow users to extend predictions in genomic regions generally regarded with no regulatory functions was still highly demanded. Result: Here, we introduce PREDetector, a tool developed for predicting regulons of DNA-binding proteins in prokaryotic genomes that (i) automatically predicts, scores and positions potential binding sites and their respective target genes, (ii) includes the downstream co-regulated genes, (iii) extends the predictions to coding sequences and terminator regions, (iv) saves private matrices and allows predictions in other genomes, and (v) provides an easy way to estimate the reliability of the predictions. Conclusion: We present, with PREDetector, an accurate prokaryotic regulon prediction tool that maximally answers biologists’ requests. PREDetector can be downloaded freely at http://www.montefiore.ulg.ac.be/~hiard/predetectorfr.html [less ▲]

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See detailL'emprunt linguistique comme marqueur de vitalité des langues
Baiwir, Esther ULg

Conference (2007, February 09)

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See detailThe composition of the inflammatory infiltrate in 3 cases of polyneuritis equi
Van Galen, Gaby ULg; Sandersen, Charlotte ULg; Delguste, Catherine ULg et al

in In Proccedings of the Second congress of the European College od Equine Internal Medicine (ECEIM) (2007, February 02)

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See detail3D image analysis characterization of dried banana
Léonard, Angélique ULg; Devahastin, Sakamon; Blacher, Silvia ULg

Conference (2007, February)

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See detailThe role of deformation in the bouncing droplet problem
Terwagne, Denis ULg; Gilet, Tristan ULg; Dorbolo, Stéphane ULg et al

Poster (2007, February)

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See detailTransfert d'image et hybridation post-traumatique
Hamers, Jérémy ULg

Conference (2007, February)

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See detail"Ethno-évaluation" : le savoir des acteurs comme théorie de l'action
Absil, Gaëtan ULg

Conference (2007, February)

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See detailFirst-Principles Study of Thermal and Elastic Properties of Al2O3
Xu, Bin ULg; Dong, Jianjun

Poster (2007, February)

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See detailBio-Climatic Chart for Different Climatic Zones of North-East India
Singh, Manoj Kumar ULg; Mahapatra, Sadhan; Atreya, S. K.

in S K, Dube; T, Muneer; G N, Tiwari (Eds.) et al Proceedings of 3rd International Conference on Solar Radiation and Day Lighting : (SOLARIS 2007) (2007, February)

This article examines and analyses the climates of Northeast India with respect to building design parameters: temperature, relative humidity, wind velocity/direction and solar radiation, with a view to ... [more ▼]

This article examines and analyses the climates of Northeast India with respect to building design parameters: temperature, relative humidity, wind velocity/direction and solar radiation, with a view to providing passive solar design potential for the achievement of physiological comfort. It presents the work on development of bio-climatic zones for the region. The major climatic types of the region are warm and humid, cool and humid and cold and cloudy zones. A bio-climatic approach is adopted in which the comfort zone and 12 monthly climatic lines are determined and plotted on the psychrometric chart for each climatic zone. From these bioclimatic charts, the potential use of passive design strategies such as solar heating, natural ventilation, thermal mass, thermal mass with night ventilation and evaporative cooling are assessed. A total of five passive design strategies are considered. It is expected that this study will help in explaining the different passive features, which are present in traditional buildings of the region and also help the architects to design modern climate responsive energy efficient buildings in the region. [less ▲]

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See detailIronie et idéologie. Réflexions sur la responsabilité idéologique du texte
Denis, Benoît ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2007, February), (2),

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See detailLes discours de la cour de récréation : méthodologie, recueil, analyse
Meunier, Deborah ULg

in Actes des IXèmes Rencontres Jeunes Chercheurs de l’Ecole Doctorale 268 « Langage et langues », Université de la Sorbonne Nouvelle (2007, February)

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See detailReproductibilité, faux parfaits et contrefaçons: entre fétichisme artistique et gout esthétique
Dondero, Maria Giulia ULg

in Nouveaux Actes Sémiotiques (2007, January 31)

Ce travail analyse la relation entre le jugement esthétique qui catégorise quelque chose comme Kitsch et l’authenticité et/ou la reproductibilité des objets, c’est-à-dire leur histoire de production. J’ai ... [more ▼]

Ce travail analyse la relation entre le jugement esthétique qui catégorise quelque chose comme Kitsch et l’authenticité et/ou la reproductibilité des objets, c’est-à-dire leur histoire de production. J’ai analysé les procédures de « Kitschification » et les conditions à travers lesquelles se forment et se justifient certains jugements de goût à une certaine période et dans une certaine culture. En partant de la distinction du philosophe Nelson Goodman entre « arts autographiques » et « arts allographiques » j’ai pris en considération le cas du Parthénon de Nashville, monument qui se présente comme la reconstruction du Parthénon d’Athènes, et qui apparaît comme une œuvre plus parfaite et donc plus « originale » de l’original lui-même. Cette analyse démontre que le jugement de goût ne peut pas renvoyer à la simple configuration textuelle d’un objet et donc à ses caractéristiques morphologiques, et que le jugement de goût dépend par contre de l’insertion spatio-temporelle (intertextuelle et interculturelle) de l’objet pris en considération. Dans cet article j’ai également analysé les notions d’aura (Benjamin), de patine, outre celles d’autographie et d’allographie par rapport aux arts architectural et pictural. [less ▲]

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See detailSuivi diachronique de l’analyse de corpus partagés
Bénel, Aurélien; Lejeune, Christophe ULg

Conference (2007, January 26)

Les anthropologues des sciences ont développé un mode d'inscription permettant le suivi de l'innovation qu'ils appellent "graphe socio-technique". Cette contribution présente les tentatives d'application ... [more ▼]

Les anthropologues des sciences ont développé un mode d'inscription permettant le suivi de l'innovation qu'ils appellent "graphe socio-technique". Cette contribution présente les tentatives d'application de ce dispositif de visualisation au suivi de l'activité sur des plateformes informatiques. Elle soulève des difficultés à la fois techniques et méthodologiques. [less ▲]

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See detailFormulation d'un additif alimentaire contenant les premiers acides aminés limitants chez le taurillon BBBc nourri avec de l'ensilage de maïs : quelle incidence sur ses performances zootechniques
Rondia, Pierre; Froimont, Eric; Decruyenaere, Virginie et al

in CRA-W; FUSAG (Eds.) 12ème Carrefour des productions animales, "Le marché de la viande bovine : enjeux et perspectives" (2007, January 24)

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See detailProduire de la viande et du lait avec la Blanc-Bleu Belge de type mixte
Bastin, Catherine ULg; Mayeres, Patrick; Bertozzi, Carlo et al

Poster (2007, January 24)

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See detailProduire de la viande et du lait avec la Blanc-Bleu Belge de type mixte
Bastin, Catherine ULg; Mayeres, Patrick; Bertozzi, Carlo et al

in 12ième Carrefour des Productions animales: Le marché de la viande bovine, enjeux et perspectives: Gembloux, le 24 janvier 2007 (2007, January 24)

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See detailOptimalisation de la valeur nutritionnelle de la graine de lupin pour les bovins
Froidmont, Eric; Bonnet, Maxime; Beckers, Yves ULg et al

in CRA-W; FUSAGx (Eds.) 12ème Carrefour des productions animales, "Le marché de la viande bovine : enjeux et perspectives" (2007, January 24)

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See detailLa pression intracrânienne normale et pathologique
Martin, Didier ULg

Conference (2007, January 22)

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See detailLe néokantisme comme forme symbolique ? Merleau-Ponty et Panofsky
Cormann, Grégory ULg

Conference (2007, January 17)

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See detailLes insultes de la cour de récréation
Meunier, Deborah ULg

Conference (2007, January 12)

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See detailLow cost wastewater treatment and reuse in agriculture. Study cases in Mediterranean region.
Xanthoulis, Dimitri ULg; Breuer, A.; Fonder, N.

in Proceedings of the 2nd International seminar on Water and Environment (2007, January)

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See detailDiscovery of a Probable Triple Quasar
Djorgovski, Stanislav G.; Courbin, F.; Meylan, G. et al

Conference (2007, January)

We report the discovery of a first known probable case of a physical triple quasar (not a gravitational lens). A previously known double system, QQ 1429-008 at z = 2.076, is shown to contain a third ... [more ▼]

We report the discovery of a first known probable case of a physical triple quasar (not a gravitational lens). A previously known double system, QQ 1429-008 at z = 2.076, is shown to contain a third, fainter QSO component at the same redshift within the measurement errors. Deep optical and IR imaging at the Keck and VLT telescopes has failed to reveal a plausible lensing galaxy group or a cluster, and moreover, we are unable to construct any viable lensing model which could lead to the observed distribution of source positions and relative intensities of the three QSO image components. Therefore, we conclude that this system is most likely a physical triple quasar, the first such close grouping known at any redshift. The projected component separations in the restframe are 30 50 kpc for the standard concordance cosmology, typical of interacting galaxy systems. The existence of this highly unusual system supports the standard picture in which galaxy interactions lead to the onset of QSO activity. [less ▲]

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See detailCleft Palate (CP): not only a diagnosis in foals
Van Galen, Gaby ULg; Delguste, Catherine ULg; Verwilghen, Denis ULg et al

Poster (2007, January)

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See detailAbstract numeration systems and recognizability
Charlier, Emilie ULg

Conference (2007, January)

In this talk, I will present some results concerning multiplication by a constant in an abstract numeration system built on a bounded language. More precisely, we will show that this operation does not ... [more ▼]

In this talk, I will present some results concerning multiplication by a constant in an abstract numeration system built on a bounded language. More precisely, we will show that this operation does not preserve regularity, and therefore cannot be computed by a finite automaton. [less ▲]

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See detailMonitoring an odour in the environment with an electronic nose : requirements for the signal processing
Romain, Anne-Claude ULg; Delva, Julien ULg; Nicolas, Jacques ULg

Conference (2007, January)

Artificial olfaction system (the so-called electronic nose) is a very promising tool to monitor the malodour in the field. Usual measurement techniques of odour use human olfaction or conventional ... [more ▼]

Artificial olfaction system (the so-called electronic nose) is a very promising tool to monitor the malodour in the field. Usual measurement techniques of odour use human olfaction or conventional analytical techniques. The first category represents the real odour perception but is not applicable to measure continuously bad odours in the field. The second class of techniques gives the mixture composition but not the global information representative of the odour perception. The e-nose has the potentialities to combine "the odour perception" and the "monitoring in the field". However to be able to reach that goal, the signal processing has to be adapted to work in complex environment. The research group in Arlon has more than ten years experience in the measure of environmental malodours in the field. The paper presents the minimal requirements that the group considers as essential for artificial olfaction system to become successful for this application. [less ▲]

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See detailChyloabdomen caused by a thrombus in the portal vein in a dog with immune-mediated hemolytic anemia and thrombocytopenia
Cavrenne, Romain ULg; Lavoué, Rachel; Peeters, Dominique ULg et al

in Proceedings of the first Belgium International Congress for Small Animal Veterinarians (Canifelis 2007) (2007, January)

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See detailCutting planes from lattice-point-free polyhedra
Louveaux, Quentin ULg

Conference (2007, January)

In this talk, we generalize the concept of a split (that leads to split cuts) to any lattice-point-free polyhedron. We show how we can generate cutting planes for a polyhedron from these objects ... [more ▼]

In this talk, we generalize the concept of a split (that leads to split cuts) to any lattice-point-free polyhedron. We show how we can generate cutting planes for a polyhedron from these objects. Associated to any lattice-point-free polyhedron, we define a "split-dimension" (which is equal to 1 in the case of a split in the usual sense). We then consider the operation of adding to a polyhedron all cutting planes that we can obtain from considering all the lattice-point-free polyhedra with a split-dimension lower or equal to d. We call the obtained object the "d-dimensional split closure" of the initial polyhedron. We discuss whether this object is again a polyhedron or not. As an important illustration, we focus on objects of split-dimension equal to 1 or 2. [less ▲]

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See detailParturition Induction in the mare. Why and when? Case Report
Ponthier, Jérôme ULg; Salciccia, Alexandra ULg; Sandersen, Charlotte ULg et al

Conference (2007, January)

INTRODUCTION Some conditions require induction of parturition: colic, severe hyperlipemia, prepubian tendon rupture, premature placental separation, hydroallantoïd, and foetal distress2,4,5. Prolonged ... [more ▼]

INTRODUCTION Some conditions require induction of parturition: colic, severe hyperlipemia, prepubian tendon rupture, premature placental separation, hydroallantoïd, and foetal distress2,4,5. Prolonged gestation is not a good indication1,4. Protocols using oxytocin, prostaglandins or corticosteroids can induce parturition2,3,4,5. Most induction protocols use low doses of oxytocin2,3,5. OBJECTIVE On the basis of a clinical case, this poster will discuss the indications, the methods and the risks of parturition induction in the mare. CLINICAL CASE A pony mare at day 310 of pregnancy is presented for colic with poor prognosis. The foetal parameters are good and the cervix begins to open. There is no milk in the udder. The decision to save the foal is taken and parturition is induced by one oxytocin bolus (20 I.U./IV) followed by an oxytocin infusion (100 I.U. in 1000ml saline). After assisted foaling, the foal rises and sucks commercial colostrum within 30 minutes. Soon, the foal becomes depressed and, despite treatment with commercial plasma, tube feeding and antibiotics, dies at day 2. DISCUSSION This case required immediate induction of foaling, which was achieved by administration of high doses of oxytocin. Commonly, high doses of oxytocin induce dystocia because the foal has no time to move to correct (dorso-sacral) presentation1,2,5. The risks for the foal include absence of colostrum and foetal immaturity1,2,3,4,5. Even after day 300, the prognosis is poor1,2,3,4. A good prognostic indicator of the foal’s maturity (lung, and other systems) is the electrolytes concentration in the mother’s milk2,4. These protocols should be used when foetal maturity is ascertained or as last resort1,2,3,4. CONCLUSIONS Foaling induction is risky for dystocia and foal outcome. It should be reserved to cases where foal’s maturity can be assessed. [less ▲]

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See detailPreconditioning of the tumor vasculature and tumor cells by intermittent hypoxia: implications for anti-cancer therapies
Martinive, Philippe ULg

Poster (2007, January)

Hypoxia is a common feature in tumors associated with an increased resistance of tumor cells to therapies. In addition to O(2) diffusion-limited hypoxia, another form of tumor hypoxia characterized by ... [more ▼]

Hypoxia is a common feature in tumors associated with an increased resistance of tumor cells to therapies. In addition to O(2) diffusion-limited hypoxia, another form of tumor hypoxia characterized by fluctuating changes in pO(2) within the disorganized tumor vascular network is described. Here, we postulated that this form of intermittent hypoxia promotes endothelial cell survival, thereby extending the concept of hypoxia-driven resistance to the tumor vasculature. We found that endothelial cell exposure to cycles of hypoxia reoxygenation not only rendered them resistant to proapoptotic stresses, including serum deprivation and radiotherapy, but also increased their capacity to migrate and organize in tubes. By contrast, prolonged hypoxia failed to exert protective effects and even seemed deleterious when combined with radiotherapy. The use of hypoxia-inducible factor-1alpha (HIF-1alpha)-targeting small interfering RNA led us to document that the accumulation of HIF-1alpha during intermittent hypoxia accounted for the higher resistance of endothelial cells. We also used an in vivo approach to enforce intermittent hypoxia in tumor-bearing mice and found that it was associated with less radiation-induced apoptosis within both the vascular and the tumor cell compartments (versus normoxia or prolonged hypoxia). Radioresistance was further ascertained by an increased rate of tumor regrowth in irradiated mice preexposed to intermittent hypoxia and confirmed in vitro using distinctly radiosensitive tumor cell lines. In conclusion, we have documented that intermittent hypoxia may condition endothelial cells and tumor cells in such a way that they are more resistant to apoptosis and more prone to participate in tumor progression. Our observations also underscore the potential of drugs targeting HIF-1alpha to resensitize the tumor vasculature to anticancer treatments. PMID: 17178869 [PubMed - indexed for MEDLINE] [less ▲]

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See detailHow to face failure to growth in dogs and cats?
Peeters, Dominique ULg

in Proceedings of the first Belgium International Congress for Small Animal Veterinarians (Canifelis 2007) (2007, January)

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See detailL’aripiprazole chez les enfants de 5 à 12 ans : étude clinique. Indications, intérêt, posologie, effets secondaires
Scholl, Jean-Marc ULg; Philippe., Paule ULg

Poster (2007, January)

Introduction : Les antipsychotiques atypiques ont de tout autres propriétés que les neuroleptiques. Leurs indications comprennent de nombreux diagnostics "non psychotiques". Ils sont largement utilisés ... [more ▼]

Introduction : Les antipsychotiques atypiques ont de tout autres propriétés que les neuroleptiques. Leurs indications comprennent de nombreux diagnostics "non psychotiques". Ils sont largement utilisés chez les enfants. L'aripiprazole est le dernier venu des antipsychotiques atypiques et il est le premier agoniste partiel dopaminergique et sérotoninergique. Il a des propriétés originales dont les effets sont peu connus chez les enfants. Objectifs : Évaluer l'efficacité de l'aripiprazole selon les diagnostics, les posologies utiles et les effets secondaires dans un suivi de cohorte. Méthode : Étude transversale descriptive de 37 enfants, 25 garçons et 12 filles, âgés de 5 à 12 ans (moy: 8 ans 7 mois), suivis dans 2 Services de Santé Mentale. Les diagnostics sont établis selon: 1. le DSM IV et 2. les critères des Troubles de la Régulation des stimuli sensoriels de la « Classification des Diagnostics des Troubles de la Santé Mentale et du Développement de la Petite Enfance, (DC:0-3R, 2005) ». Une attention particulière est portée au diagnostic des comorbidités. Les posologies et effets secondaires sont évalués dans un suivi longitudinal de 8 mois en moy. par enfant. Résultats : L'aripiprazole est efficace dans les : états paranoïdes (14), autres projections psychotiques (10), symptômes négatifs (12), la bipolarité (25), les colères en "on-off" (18), les troubles de la régulation (21), l'autisme (3), le somnambulisme (2). Posologie thérapeutique : 1,0 mg/10 kilos (min. 0,8 et max 1,8 mg), 1 prise/j. Effets secondaires : nausées entre le Ier et le 10e jour (6), somnolence importante (2), augmentation de la sensibilité des perceptions durant les 4 premières semaines de traitement (4), accroissement de l'agressivité avec sentiments de persécution (2), épisodes de palpitations avec tachycardie (2). Arrêt du traitement : 2 arrêts pour somnolence importante non dose-dépendante (une enfant a une immaturité neurologique et l'autre une leucomalacie périventriculaire avec épilepsie), 2 autres arrêts pour accroissement de l'agressivité, et un 5e arrêt suite à des palpitations et tachycardie (examens cardiologiques normaux). L'association aripiprazole-méthylphénidate est très bien tolérée et apporte un bénéfice additif lorsque l'enfant présente en comorbidité un AD et/ou HD (26). [less ▲]

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See detailVaccination in dogs and cats: between adverse reactions and duration of immunity
Peeters, Dominique ULg

in Proceedings of the first Belgium International Congress for Small Animal Veterinarians (Canifelis 2007) (2007, January)

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See detailL'utilité de l'association aripiprazole-méthylphénidate en pédopsychiatrie, selon les diagnostics
Scholl, Jean-Marc ULg; Philippe, Paule ULg

Poster (2007, January)

Introduction : En pédopsychiatrie, les enfants présentent souvent des comorbidités. L'AD et/ou HD peut être associée à tous les diagnostics de la nosographie. Une diversité de diagnostics répond aux ... [more ▼]

Introduction : En pédopsychiatrie, les enfants présentent souvent des comorbidités. L'AD et/ou HD peut être associée à tous les diagnostics de la nosographie. Une diversité de diagnostics répond aux antipsychotiques atypiques et l'ADHD répond au méthylphénidate. Par contre, il n'existe aucune étude qui analyse l'effet simultané d'aripiprazole-méthylphénidate chez l'enfant. Objectifs : Établir le diagnostic des comorbidités chez les enfants et évaluer dans un suivi de cohorte : l'efficacité de l'association aripiprazole-méthylphénidate, les posologies et les effets secondaires. Méthode : Établissement des diagnostics des comorbidités chez 31 enfants, 22 garçons et 9 filles, de 5 à 12 ans (moy: 9,1 ans), suivis dans 2 Services de Santé Mentale. Les diagnostics sont établis selon: le DSM IV et les critères des Troubles de la Régulation des stimuli sensoriels de la « Classification des Diagnostics des Troubles de la Santé Mentale et du Développement de la Petite Enfance, DC:0-3R », 2005. Les posologies et effets secondaires sont évalués dans un suivi longitudinal de 8 mois en moy/enfant. Résultats : Comorbidités : ADHD (31) [AD (4), HD (2), mixte (25)], états paranoïdes (11), autres projections psychotiques (10), symptômes négatifs (10), bipolarité (25) [maniaque (10), mixte (13), dépressif (2)], colères en "on-off" (18), troubles de la régulation (17), autisme (2), somnambulisme (1). Aripiprazole-méthylphénidate est efficace dans l'ensemble de ces diagnostics. L'aripiprazole est efficace dans les Troubles de la Régulation ; ceci est une nouvelle indication thérapeutique. Posologie. Aripiprazole : 1,0 mg/10 kilos (min 0,8 et max 1,8 mg), 1 prise/j. Méthylphénidate : 7 mg/10 kilos/j (min 5 et max 10 mg). Arrêt de l'aripiprazole : 2 arrêts pour accroissement de l'agressivité, 1 arrêt pour augmentation de la sensibilité des perceptions avec peurs. Arrêt du méthylphénidate : 1 arrêt pour coliques abdominales. Arrêt du méthylphénidate et de l'aripiprazole : aripiprazole suite à une somnolence importante non dose dépendante et méthylphénidate suite à un accroissement de l'excitabilité non dose dépendante chez 1 enfant. Conclusion : L'association aripiprazole-méthylphénidate est très bien tolérée, avec un bénéfice additif lorsque l'enfant présente en comorbidité un AD et/ou HD (26). [less ▲]

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See detailUltrasonography and histology of equine menisci; a comparative study of the medial
De Busscher,V; Gabriel, Annick ULg; Cassart, Dominique ULg et al

Poster (2007, January)

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See detailMinimization of Production Cost by use of an Automatic Cost Assessment Method and Simulation
Caprace, Jean-David ULg; Bair, Frédéric ULg; Losseau, Nicolas ULg et al

in The Euro-Asia Maritime Network (EAMARNET) (2007, January)

This paper will present different ways to minimize cost in shipbuilding industry. Amongst them we have the production simulation methods, the cost assessment methods and the optimization methods. Nowadays ... [more ▼]

This paper will present different ways to minimize cost in shipbuilding industry. Amongst them we have the production simulation methods, the cost assessment methods and the optimization methods. Nowadays, cost assessment is a key task of an integrated ship design. The various methods to estimate the production cost differ with the known information (input data). The less information is detailed, the earlier a method can be used in the design process. The more information is used, the better we can assess the differences between design alternatives. The methods presented here and the “design for production” concept promise to increase the productivity trough the following points: a more accurate cost estimation, an improvement in the deadlines planning and the production schedule, a progress in distribution of the workload between the various production workshops, a better knowledge of the individual costs that will permit to reduce the global cost. In order to illustrate our work, we present in this paper three methods to decrease the global cost of a ship. [less ▲]

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See detailLe "Mal-être en situation d'être seul" différencié de "l'Angoisse de séparation" : recherche sémiologique et élaboration conceptuelle
Scholl, Jean-Marc ULg; Philippe, Paule ULg

Poster (2007, January)

Une recherche sémiologique sur 170 enfants a individualisé : le "mal-être en situation d'être seul". Un malaise apparaît lorsque le sujet est seul. Voici son décours développementale. Certains bébés ... [more ▼]

Une recherche sémiologique sur 170 enfants a individualisé : le "mal-être en situation d'être seul". Un malaise apparaît lorsque le sujet est seul. Voici son décours développementale. Certains bébés réclament une présence physique pour s'endormir. Vers 2,5 ans, l'enfant connaît une séparation difficile lors des premiers jours d'école. Vers 5 ans, l'enfant n'aime pas jouer seul dans une pièce sans la présence d'une autre personne ou d'un animal, et s'il le fait, il cherche à savoir en permanence où se trouve l'adulte. À l'endormissement, l'enfant appelle souvent, sort de la chambre. La nuit, il voudrait rejoindre les parents. Vers 8 ans, il n'aura pas de difficultés à quitter la maison et à se séparer de ses parents pour aller jouer avec des copains du quartier, mais il sera beaucoup plus mal à l'aise si l'un de ses parents quitte momentanément la maison. Vers 9 ans, la symptomatologie se limite à celle retrouvée chez l'adulte : un sentiment vague de mal-être à l'endormissement. L'adulte a des difficultés à mettre des mots sur ce ressenti qui est sans représentation : du "vide" ou un "rien". Il cherche à retarder la mise au lit, à s'occuper au lit pour éviter ce ressenti, et à s'endormir rapidement de fatigue. L'adulte qui ressent ce "mal-être" en journée va le contrer par 4 moyens : 1. activités 2. apport sensoriel (radios ouvertes, TV), 3. remplir son "monde interne" par la lecture 4. un animal de compagnie. Le "mal-être en situation d'être seul" : A) Est à distinguer de l'angoisse de séparation B) Est corrélé à un retard d'apparition des repères temporels, non pas séquentiels ou notionnels, mais dans l'appréhension subjective du temps : "goûter anticipativement ce que dure un certain laps de temps" C) Il serait lié à un manque d'efficience d'un support neurophysiologique permettant l'évaluation de la longueur du temps : "la jauge interne d'évaluation anticipative du temps" D) Ceci expliquerait qu'il ne suffit pas à l'enfant d'avoir des représentations pour acquérir le sentiment subjectif d'une permanence mais qu'il faut y joindre ce "feeling" du temps E) Il est systématiquement présent dans la bipolarité sans en être pathognomonique. Il se retrouve à l'état isolé et dans d'autres entités nosologiques. A minima, il est une caractéristique de la personne. [less ▲]

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See detailMiroir interne déformant de l'image de soi : élaboration conceptuelle intégrant la clinique et les découvertes récentes des neurosciences
Scholl, Jean-Marc ULg; Philippe, Paule ULg

Poster (2007, January)

Neurosciences : Un réseau neuronal spécifiquement référé au "self" du sujet est mis en évidence en neuroimagerie (Ph Fossati). Il intervient pour se remémore des attributs référés au self. Ce réseau est ... [more ▼]

Neurosciences : Un réseau neuronal spécifiquement référé au "self" du sujet est mis en évidence en neuroimagerie (Ph Fossati). Il intervient pour se remémore des attributs référés au self. Ce réseau est différent de celui qui permet au sujet de donner des attributs à d'autres individus. Le réseau référé au self permet d'être en contact immédiat avec l'image et la connaissance de soi. De plus, le rappel mnésique des attributs positifs et négatifs référés au self met en jeu des réseaux neuronaux différents. Les attributs positifs référés au self activent la région préfrontale antéromédiane droite, les attributs négatifs référés au self la région préfrontale dorsolatérale droite. Le sujet sain active les deux réseaux de façon simultanée pour restituer une image de soi intégrée. Définition conceptuelle: Le "miroir interne" – distingué de l'objet qui lui est présenté – correspond¬ au réseau neuronal référé spécifiquement au self. Ce réseau accède à l'image de soi. S'il y a un dysfonctionnement du réseau référé au self, il restitue une image déformée de soi, et le "miroir interne" devient déformant. Le sujet associera son identité à cette image déformée. Clinique du «miroir interne déformant de l'image de soi» : Le regard de l'enfant sur lui-même lui renvoie une image plus négative que ce que ses interlocuteurs ne perçoivent de lui. Dès le départ, l'enfant a une mauvaise perception de lui-même. Lorsqu'un interlocuteur lui fait une remarque, l'enfant bascule dans une image déformée et bien plus négative que celle que ne lui prête l'interlocuteur. Un dysfonctionnement de ces réseaux déséquilibre la balance et ne fait apparaître "qu'une seule couleur" dans le "miroir interne" par une restitution mnésique univoque : ou des attributs positifs, ou des attributs négatifs. Une prépondérance de l'image négative évoque un terrain dépressif, des personnalités évitante ou dépendante. Une prépondérance de l'image positive évoque des personnalités narcissiques, une image mégalomaniaque. Un dysfonctionnement neuronal peut induire une labilité et une instabilité de cette image (borderline), ou, une bascule rapide en "on-off" d'images positives et négatives de soi (rencontrée en pédopsychiatrie). Une psychoéducation permet la prise de conscience de ce miroir interne déformant. [less ▲]

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See detailModelling the vertical centrifugal casting of large bimetallic rolling mills
Studer, Léo ULg; Habraken, Anne ULg; Pirotton, Michel ULg et al

in Onate, E.; Papadrakis, M.; Schrefler, B. (Eds.) Proceedings of the Conference of Computational Methods for Coupled Problems in Science and Engineering 2 (2007)

In order to take into account the dynamical effects of molten metal during solidification, we want to interface a metal solidification solver with a flow dynamics solver.

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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 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 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 detailData quality of the serum analysis of PCDD, PCDF and PCB in the French dioxin and incinerators study
Pascal, M.; Eppe, Gauthier ULg; Zeghnoun, A. et al

in Organohalogen Compounds (2007), 69

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