References of "2006"
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See detailMorphological quantification of bone scaffolds with µCT
Kerckhofs, Greet ULg; Schrooten, Jan; Van Cleynenbreugel, T. et al

Conference (2006)

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See detailUse of a serological approach for prediction of Salmonella status in an integrated pig production system
Korsak Koulagenko, Nicolas ULg; Degeye, Jean-Noel; Etienne, Grégory et al

in International Journal of Food Microbiology (2006), 108(2), 246-254

Relevance of a Salmonella serological detection technique was studied from complete results obtained from 9 pigs fattening units. Feces and overshoes were sampled at different periods after starting ... [more ▼]

Relevance of a Salmonella serological detection technique was studied from complete results obtained from 9 pigs fattening units. Feces and overshoes were sampled at different periods after starting fattening (2, 3 and 4 months) while caecal contents were taken on the slaughter line. The bacteriological technique used was based on a Diasalm enrichment and a commercial test was used for serology on an average of ten animals per batch. The aim of this work was to establish a correlation between serological results obtained at slaughter (10 samples/batch) and bacteriological results. In this context, two types of logistic regression models were tested by considering alternatively serology and Salmonella detection in caecal contents as the dependent variables. Firstly, beside the fact that all logistic regression models show weak correlations, the first finding was that positive results in overshoes taken at 2 and 3 months are slightly correlated with serological status of herds (odds-ratios of 4.96 and 2.55). Secondly, when batches were characterized as positive on the basis of serological results, the probability of Salmonella recovery in caecal contents was higher than when the batches were considered as negative (odds-ratios comprised between 4.36 and 5.81). A major conclusion is that serology can be used to follow the improvement of an integrated pig production system, but is not the unique solution for assessing risk of Salmonella shedding from specific herds. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailA viscoelastic formulation for finite strains: application to brain soft tissues
FANCELLO, E.; Ponthot, Jean-Philippe ULg; VIGNERON, L. et al

in Proceedings of XXVII CILAMCE – Iberian Latin American Congress on Computational Methods in Engineering (2006)

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See detailA model reduction method for the control of rigid mechanisms
Bruls, Olivier ULg; Duysinx, Pierre ULg; Golinval, Jean-Claude ULg

in Multibody System Dynamics (2006), 15(3), 213-227

This paper presents a reduction method to build closed-form dynamic equations for rigid multibody systems with a minimal kinematic description. Relying on an initial parameterization with absolute ... [more ▼]

This paper presents a reduction method to build closed-form dynamic equations for rigid multibody systems with a minimal kinematic description. Relying on an initial parameterization with absolute displacements and rotations, the method is able to tackle complex topologies with closed-loops in a systematic way and its extension to flexible multibody systems will be investigated in the future. Thus, it would be of great use in the framework of model-based control of mechanisms. The method is based on an interpolation strategy. The initial model is built and reduced for a number of selected points in the configuration space. Then, a piecewise polynomial model is adjusted to match the collected data. After the presentation of the reduction procedure and of the interpolation strategy, two applications of the reduction method are considered: a four-bar mechanism and a parallel kinematic machine-tool called "Orthoglide". [less ▲]

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See detailOut-of-plane displacement derivative measurement: comparison of results obtained by a shearographic interferometer using the separation of the polarization states and the finite element method
Rosso, Vanessa; Zhang, Lihong ULg; Michel, Fabrice ULg et al

in Mathieu, P. (Ed.) Proceedings of Photonics North Conference 2006 (2006)

An original experimental setup for shearography with metrological applications is presented herein. The simplicity and the efficiency of the setup are provided by a shearing device, a prism that separates ... [more ▼]

An original experimental setup for shearography with metrological applications is presented herein. The simplicity and the efficiency of the setup are provided by a shearing device, a prism that separates the TE and TM polarization modes with a coating and a thin glass plate attached on its face. The temporal phase shifting method is applied through the use of a liquid crystal variable retarder. The use of this shearing device enables an in-line and almost-common path configuration for the shearing interferometer, a path that leads to high stability of the interferometer and a low sensitivity to external disturbances. In order to prove the efficiency and the accuracy of this speckle shearing interferometer, the out-of-plane displacement derivative relative to the shearing interferometry direction of a centrally loaded steel plate has been measured by the shearographic interferometer and then compared with the out-of-plane displacement derivative computed from the displacement field provided by the finite element method. The results are in good agreement. [less ▲]

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See detailThe Glycosylation of Bovine Pregnancy-Associated Glycoproteins Changes before Parturition
Klisch, K.; Herzog, K.; Feldmann, M. et al

in Reproduction in Domestic Animals (2006)

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See detailA simple method for detecting and adjusting meta-analyses for publication Bias
Richy, F.; Reginster, Jean-Yves ULg

in Internet Journal of Epidemiology (2006), 3(2),

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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 detailNew validation strategy for the LC determination of ascorbic acid in sublingual tablets
Cahay, B.; Rousseau, Anne ULg; Klinkenberg, R. et al

Poster (2006)

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See detailTunable field-induced superconductivity
Gillijns, W.; Silhanek, Alejandro ULg; Moshchalkov, V. V.

in Physical Review. B : Condensed Matter (2006), 74(22),

We investigate the transport properties of a thin superconducting Al layer covering a square array of magnetic dots with out-of-plane magnetization. A thorough characterization of the magnetic properties ... [more ▼]

We investigate the transport properties of a thin superconducting Al layer covering a square array of magnetic dots with out-of-plane magnetization. A thorough characterization of the magnetic properties of the dots allowed us to fine-tune their magnetic state at will, hereby changing the influence of the dots on the superconductor in a continuous way. We show that even though the number of vortex-antivortex pairs discretely increases with increasing the magnetization of the dots, no corresponding discontinuity is observed in the resistance of the sample. The evolution of the superconducting phase boundary as the magnetic state of the dots is swept permits one to devise a fully controllable and erasable field-induced superconductor. [less ▲]

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See detailLes mentions du mandat de perquisition comme protection des droits de défense
Jacobs, Ann ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2006)

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See detailPrevalence of diabetes, metabolic syndrome and metabolic abnormalities in schizophrenia over the course of the illness: a cross-sectional study.
De Hert, M.; van Winkel, R.; Van Eyck, D. et al

in Clinical Practice and Epidemiology in Mental Health (2006), 2

BACKGROUND: Patients with schizophrenia are at high risk of developing metabolic abnormalities. METHOD: A prospective study focusing on metabolic disturbances in patients with schizophrenia, including an ... [more ▼]

BACKGROUND: Patients with schizophrenia are at high risk of developing metabolic abnormalities. METHOD: A prospective study focusing on metabolic disturbances in patients with schizophrenia, including an oral glucose tolerance test, is currently ongoing at our University Hospital and affiliate services. The prevalence of metabolic abnormalities at baseline was assessed in a cohort of 415 patients with schizophrenia. The sample was divided into 4 groups according to duration of illness: first-episode patients (<1.5 years), recent-onset patients (between 1.5 and 10 years), subchronic patients (between 10 and 20 years) and chronic patients (>20 years). RESULTS: Metabolic abnormalities were already present in first-episode patients, and considerably increased with increasing duration of illness. When compared to the general population matched for age and gender, much higher rates of the metabolic syndrome (MetS) and diabetes were observed for patients with schizophrenia. For MetS, the increase over time was similar to that of the general population. In contrast, the difference in the prevalence of diabetes in patients with schizophrenia and the general population dramatically and linearly increased from 1.6% in the 15-25 age-band to 19.2% in the 55-65 age-band. CONCLUSION: Thus, the current data suggest that on the one hand metabolic abnormalities are an inherent part of schizophrenic illness, as they are already present in first-episode patients. On the other hand, however, our results suggest a direct effect of the illness and/or antipsychotic medication on their occurrence. The data underscore the need for screening for metabolic abnormalities in patients diagnosed with schizophrenia, already starting from the onset of the illness. [less ▲]

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See detailSolid-state NMR study of modified clay and polymer/clay nanocomposites
Grandjean, Jean ULg

in Clay Minerals (2006), 41

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See detail60 h of anhepatic state without neurologic deficit
Detry, Olivier ULg; De Roover, Arnaud ULg; Delwaide, Jean ULg et al

in Transplant International (2006), 19(9), 769-769

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See detailThe ELEKTRA project: Towards a new learning experience
Kickmeier-Rust, M. D.; Schwarz, D.; Albert, D. et al

in Pohl, Margit; Holzinger, A.; Motschnig, R. (Eds.) et al M3 – Interdisciplinary aspects on digital media & education (2006)

Digital game-based learning is a hot topic of research and development. Since the advent of computer and video games, educators were inherently interested in utilizing the beneficial aspects of computer ... [more ▼]

Digital game-based learning is a hot topic of research and development. Since the advent of computer and video games, educators were inherently interested in utilizing the beneficial aspects of computer games for educational purposes. These factors are primarily the intrinsic motivation of games, immersive environments, engaging stories, and an artful balance between challenges and continuously growing abilities. Proponents of computer games delivered a large number of empirical investigations revealing that games may foster the development of abilities and competencies. Besides the advantageous aspects of computer games, a variety of problems were reported by researchers. Due to the high costs of professional game development, many educational games are technologically poor and cannot compete with entertainment games in terms of visual design, possibilities for interactions, or storytelling. Moreover, many current educational games do not incorporate a sound psychological, pedagogical, or didactic background; instead they are focusing on transmission or rehearsal of isolated facts or skills. Finally, such games lack the ability to adapt to individual competencies failing to balance challenge and abilities regarding knowledge or skills. The ELEKTRA project, introduced in this article, aims for addressing these problems relying on an interdisciplinary approach of cognitive science, neuroscience, pedagogy, game design, and game development. The project will develop an adventure game that can keep up with commercial games and that focuses on primarily curriculum-related educational purposes by incorporating a sound psychological and pedagogical framework. Moreover, the project will prove the outcomes of research and development by a comprehensive game demonstrator. [less ▲]

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See detailInhomogeneous and anisotropic deformation behavior and strain hardening of ultrafine-grained aluminium by ECAP
Poortmans, Stijn; El Houdaigui, Fouad; Habraken, Anne ULg et al

in Zhu, Y. T.; Langdon, T. G.; Horita, Z. (Eds.) et al Proceedings of the Ultrafine Grained Materials IV Conference (2006)

Hot-rolled AA1050 commercial pure aluminum was deformed by ECAP (Equal Channel Angular Pressing) at room temperature following route BC for 8 passes. Mechanical testing at room temperature on both hot ... [more ▼]

Hot-rolled AA1050 commercial pure aluminum was deformed by ECAP (Equal Channel Angular Pressing) at room temperature following route BC for 8 passes. Mechanical testing at room temperature on both hot-rolled aluminum and aluminum after ECAP consisted of uniaxial tension, axisymmetric compression and shear by torsion. The phenomenological Hill’s criterion identified from texture data accounts for the observed tension-compression asymmetry due to ECAP and predicts torsion yielding close to measurements. FE simulations of the compression tests are performed with a Hill model or a Minty micro-macro model and coupled with an isotropic Voce saturation hardening law. These simulations compute the inhomogeneous behavior due to barreling, the observed sample anisotropy and the force-displacement curve. Comparisons of numerical and experiments results provide a first identification of the hardening parameters and the friction coefficient during compression tests. [less ▲]

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See detailDermatophyties
Mignon, Bernard ULg

in Guaguère E., Prélaud P. (Ed.) Guide pratique de dermatologie canine (2006)

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