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See detailEtude des disparités de la chirurgie élective en Belgique
Jacques, Jessica ULg; Gillain, Daniel ULg; Fecher-Bourgeois, Fabienne ULg et al

Report (2006)

La chirurgie élective recouvre les interventions qui peuvent normalement être programmées calmement sans danger immédiat pour la santé du patient. Naïvement, on pourrait s’attendre à ce que cette ... [more ▼]

La chirurgie élective recouvre les interventions qui peuvent normalement être programmées calmement sans danger immédiat pour la santé du patient. Naïvement, on pourrait s’attendre à ce que cette caractéristique contribue à des décisions d’intervention mûrement réfléchies et donc à peu de disparités entre les pratiques. Et pourtant on découvre dans la littérature internationale que le lieu de résidence du patient influence nettement la probabilité de subir certaines interventions. Ces différences sont-elles aussi observées en Belgique ? Quelle intervention, de la cataracte, du syndrome du canal carpien ou de la sténose carotidienne, présente la plus grande variabilité ? Où fait-on le plus d’arthroscopies en Belgique ? La prothèse totale de hanche et la prothèse totale de genou sont-elles liées géographiquement ? Et qu’en est-il de la césarienne, dont on a encore récemment beaucoup entendu parler dans l’actualité, pour la proportion inquiétante de césariennes dans certains hôpitaux ? Illustrer simplement les différences de pratique ne suffit pas. Classiquement, il s’agit ensuite d’essayer d’éliminer l’effet de plusieurs variables qui pourraient objectivement expliquer les différences observées, comme des comorbidités, des variables socioéconomiques, des facteurs d’offre médicale, … Mais les disparités de pratique subsistent en Belgique même après avoir éliminé l’effet de ces variables. Ceci avait déjà été mis en évidence dans des études précédentes. On débouche alors inévitablement sur un questionnement à propos de l’opportunité des soins. Cette recherche démontre que pour certaines interventions, il est possible de mettre en évidence une association entre « trop de soins donnés » et des « soins médicalement inopportuns ». Mais ce n’est pas toujours le cas, le questionnement reste alors entier et l’instauration de mesures qui viseraient à diminuer des différences non justifiées reste à l’ordre du jour. Une collaboration de fond avec les acteurs de terrain pour chaque domaine spécifique est un « must », comme le prouve cette étude. En outre, cette étude a montré une fois de plus que la Belgique est riche en bases de données qui ne demandent qu’à être exploitées, pas seulement par le KCE mais aussi par tous les autres acteurs qui cherchent à utiliser le plus efficacement possible les moyens disponibles pour offrir à tous les patients les meilleurs soins. [less ▲]

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See detailParticle density determination of pellets and briquettes
Rabier, Fabienne; Temmerman, Michaël ULg; Böhm, Thorsten et al

in Biomass & Bioenergy (2006)

Several methods and procedures for the determination of particle density of pellets and briquettes were tested and evaluated. Round robin trials were organized involving five European laboratories, which ... [more ▼]

Several methods and procedures for the determination of particle density of pellets and briquettes were tested and evaluated. Round robin trials were organized involving five European laboratories, which measured the particle densities of 15 pellet and five briquette types. The test included stereometric methods, methods based on liquid displacement (hydrostatic and buoyancy) applying different procedures and one method based on solid displacement. From the results for both pellets and briquettes, it became clear that the application of a method based on either liquid or solid displacement (only tested on pellet samples) leads to an improved reproducibility compared to a stereometric method. For both, pellets and briquettes, the variability of measurements strongly depends on the fuel type itself. For briquettes, the three methods tested based on liquid displacement lead to similar results. A coating of the samples with paraffin did not improve the repeatability and the reproducibility. Determinations with pellets proved to be most reliable when the buoyancy method was applied using a wetting agent to reduce surface tensions without sample coating. This method gave the best values for repeatability and reproducibility, thus less replications are required to reach a given accuracy level. For wood pellets, the method based on solid displacement gave better values of repeatability, however, this instrument was tested at only one laboratory. [less ▲]

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See detailMathematical modeling of bone regeneration including the angiogenic process
Geris, Liesbet ULg; Vander Sloten, Jos; Van Oosterwyck, Hans

in Journal of Biomechanics (2006), 39(S1), 411-412

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See detailAnalyse qualitative de la problématique de l’abandon de la natation de compétition en Communauté française de Belgique
Lefefvre, Fabien; Habsch, Ingrid; Cloes, Marc ULg

in Carlier, Ghislain; Bouthier, Daniel; Bui-Xuän, G. (Eds.) Intervenir en éducation physique et en sport. Recherches actuelles (2006)

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la ... [more ▼]

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la littérature. En récoltant des données chez les différents acteurs de clubs, nous ambitionnons de mieux cerner le phénomène et, surtout, de croiser les données issues des pratiquants avec celles des autres personnages clés de la réussite sportive. Mettre en exergue les solutions imaginées par les dirigeants sportifs pour lutter contre ce phénomène et offrir une base de réflexion et d’action aux praticiens constituent les finalités pratiques de cette étude. [less ▲]

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See detail« Beau comme l’antique ». Pausanias et « l’archaïque »
Pirenne-Delforge, Vinciane ULg

in Ktema : Civilisations de l'Orient, de la Grèce et de Rome Antiques (2006), 31

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See detailBaryon resonances in large N(c) QCD
Matagne, Nicolas; Stancu, Floarea ULg

in Bled Workshops in Physics (2006), 7(1), 61-66

The baryon spectra are discussed in the context of the $1/N_c$ expansion approach, with emphasis on mixed symmetric states. The contributions of the spin dependent terms as a function of the excitation ... [more ▼]

The baryon spectra are discussed in the context of the $1/N_c$ expansion approach, with emphasis on mixed symmetric states. The contributions of the spin dependent terms as a function of the excitation energy are shown explicitly. At large energies these contributions are expected to vanish. [less ▲]

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See detailSynchronization of validation and estimation strategies of doubt associated as part of the accreditation in trial laboratories
Hubert, Philippe ULg; Rozet, Eric ULg; Boulanger, Bruno ULg et al

in Acta Clinica Belgica (2006), 61(Suppl. 1), 54-56

In order to achieve the harmonization of validation strategies, the interpretation of several validation criteria is proposed. Furthermore, a simple and visual decision tool to assess the validity of an ... [more ▼]

In order to achieve the harmonization of validation strategies, the interpretation of several validation criteria is proposed. Furthermore, a simple and visual decision tool to assess the validity of an analytical procedure is described: the accuracy profile based on the estimation of the total error of the measurements. This profile build with beta-expectation tolerance intervals can also compute with efficiency the uncertainty related to the results of a laboratory, which is an essential parameter for the accreditation of laboratories under ISO 17025. [less ▲]

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See detailLes industries aux pointes foliacées et la transition du Paléolithique moyen au Paléolithique supérieur dans le Nord de l'Europe
Flas, Damien ULg

in Bulletin de l'Association Scientifique Liégeoise pour la Recherche Archéologique (2006), 25

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See detailSanté osseuse et ostéoporose: la supplémentation vitamino-calcique en fonction de l’âge
Reginster, Jean-Yves ULg

in Hygiène - Journal de l'Association Française des femmes médecins (2006), 32

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See detailSound production mechanism in carapid fish: first example with a slow muscle
Parmentier, Eric ULg; Lagardère, Jean-Paul; Vandewalle, Pierre ULg et al

Conference (2006)

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See detailContribution to the knowledge of lichens in northern France
Diederich, Paul; Van Den Broeck, Dries; Ertz, Damien et al

in Bulletin de la Société des Naturalistes Luxembourgeois (2006), 106

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See detailDes momies à l’hôpital
Laboury, Dimitri ULg

in Warmenbol, Eugène (Ed.) La Caravane du Caire. L’Égypte sur d’autres rives (2006)

Résultats de l'analyse par rayons-X et CT-scan des momies égyptiennes (humaines et animale) conservées dans les collections des Musées de la Ville de Liège

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See detailA novel mathematical model to simulate and predict tissue regeneration
Geris, Liesbet ULg; Vander Sloten, Jos; Van Oosterwyck, Hans

in Middleton, J.; Jones, M. L.; Shrive, N. (Eds.) Proceedings of the 7th international symposium on Computer Methods in Biomechanics and Biomedical Engineering (2006)

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See detailDéchiffrer Vénus. Renaissance et âge classique
Droixhe, Daniel ULg

in Journal de la Renaissance. IV (2006)

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See detailCross-calibration functions for soil CO2 efflux measurement systems
Ngao, Jerome; Longdoz, Bernard; Perrin, Dominique ULg et al

in Annals of Forest Science : a Multidisciplinary and International Journal (2006), 63(5), 477-484

Different soil CO2 efflux measurement systems and methodologies were used to estimate the annual soil respiration of different forest sites. To allow comparison between these annual values, this study ... [more ▼]

Different soil CO2 efflux measurement systems and methodologies were used to estimate the annual soil respiration of different forest sites. To allow comparison between these annual values, this study aimed to cross-calibrate five soil CO2 efflux (RS) closed dynamic chamber systems, and compare the in situ measurement methodologies. We first assessed the impact of the measurement methodology on RS by studying the effects of three parameters: record duration, time lag before starting to record and the mode of chamber-soil contact (use of collars or insertion of the chambers into the soil). Secondly, we directly compared systems with identical methodology during field measurements on three forest sites. We observed a significant influence of the chamber-soil contact mode (no impact of the record duration and duration before starting to record). Measurements obtained by insertion led to significantly higher estimates of RS than those obtained using collars (up to 28%). Our inter-comparison showed that deviations existing between in situ measurements performed with the different systems were partly systematic and could be corrected using simple linear equations. Measurements of pressure difference between the inside and the outside of soil chambers allowed explaining a part of the observed deviations between systems. Finally, we assessed the influence of the cross-calibration equations on annual respiration of two beech forest soils. [less ▲]

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See detailSound production mechanism in Amphiprion clarkii (Teleostei: Pomacentridae)
Colleye, Orphal ULg; Herrel, Anthony; Vandewalle, Pierre ULg et al

Poster (2006)

In the family Pomacentridae, six genera were reported as sound producers: Amphiprion, Dascyllus, Stegastes, Chromis, Abudefduf and Plectroglyphidodon. The anemonefishes (Amphiprioninae) live in social ... [more ▼]

In the family Pomacentridae, six genera were reported as sound producers: Amphiprion, Dascyllus, Stegastes, Chromis, Abudefduf and Plectroglyphidodon. The anemonefishes (Amphiprioninae) live in social group in association with sea anemones, which protect them from predators. Their sound emissions seem involved in courtship and territorial defense, contributing to both survival and reproductive success. However, the mechanism of sound production is unresolved. It has been hypothesized that it involves swimbladder or the action of the pharyngeal jaws amplified by swimbladder. The aim of this study was to understand the sonic mechanism involved in the agonistic sounds in Amphiprion clarkii. The approach consists in high-speed cineradiography and functional morphology. During agonistic sounds (pops), fishes perform different movements such as skull elevation, pectoral girdle retraction, hyoid lowering and mouth closing. Pops are produced when the hyoid is completely lowered and the mouth closed. The simultaneous realization of these movements was never observed in teleost. In Amphiprion sp., it is possible due to an additional ligament inserted on the hyoid bar and on the inner lower jaw. The hyoid lowering combined to the closing (and thus the elevation) of the mandible could generate a tension of the ligament, provoking its vibration [less ▲]

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See detailFace au chaos des arts numériques
Bawin, Julie ULg

in Flux News (trimestriel d'art contemporain) (2006), (42), 23

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See detailNederlandse uitspraakleer voor Franstaligen
Hiligsmann, Philippe; Rasier, Laurent ULg

Book published by Wolters-Plantyn (2006)

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See detailSeminar, “Change Detection and Similarity Afternoon”, Royal Military Academy (RMA)
Vigneron, Lara M.; Verly, Jacques ULg

Scientific conference (2006)

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