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See detailDroplet Size Spectra And Drift Effect Of Two Phenmedipham Formulations And Four Adjuvants Mixtures
Stainier, C.; Destain, Marie-France ULg; Schiffers, Bruno ULg et al

in Crop Protection (2006), 25(12),

Relative drift potential was evaluated for three types of hydraulic nozzles (a flat-fan nozzle, a hollow cone nozzle and an air induction nozzle) spraying different liquids: water, emulsifiable ... [more ▼]

Relative drift potential was evaluated for three types of hydraulic nozzles (a flat-fan nozzle, a hollow cone nozzle and an air induction nozzle) spraying different liquids: water, emulsifiable concentrate (EC) and suspension concentrate (SC) formulations of phenmedipham dispersed in water, with or without addition of 4 different tank-mix adjuvants. The droplet size spectra were measured for these 15 spray mixtures using a Malvern Particle Sizer and characterised by the Volume Median Diameter (VMD) and the percentage of liquid contained in droplets less than 100 m (% < 100 m). Horizontal ground drift was measured in a wind tunnel, on glass fibre collectors using a fluorescent tracer dye technique. The relative drift of each spray mixture was characterised by the Drifted Part (DP) which is the part of the sprayed volume drifted between 2 and 6 metres. Although the nozzle type was the predominating parameter regarding to the droplet size spectra and the DP, differences were observed due to the liquids characteristics. The EC formulation produced a smaller droplet size and a greater DP than the SC formulation whatever the tank mix adjuvant used. For the different spray mixtures, the DP was poorly correlated to the VMD or the % < 100 m. However, correlations between the VMD, the % < 100 m and the DP of the flat-fan nozzle and of the hollow cone nozzle were significant. This suggests that a reference nozzle could be used to estimate the drift potential of other nozzle with a similar liquid sheet break-up mechanism. [less ▲]

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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 detailMurine gammaherpesvirus-68 glycoprotein H-glycoprotein L complex is a major target for neutralizing monoclonal antibodies.
Gill, Michael B.; Gillet, Laurent ULg; Colaco, Susanna et al

in Journal of General Virology (The) (2006), 87(Pt 6), 1465-75

Herpesviruses characteristically persist in immune hosts as latent genomes, but to transmit infection they must reactivate and replicate lytically. The interaction between newly formed virions and pre ... [more ▼]

Herpesviruses characteristically persist in immune hosts as latent genomes, but to transmit infection they must reactivate and replicate lytically. The interaction between newly formed virions and pre-existing antibody is therefore likely to be a crucial determinant of viral fitness. Murine gammaherpesvirus-68 (MHV-68) behaves as a natural pathogen of conventional, inbred mice and consequently allows such interactions to be analysed experimentally in a relatively realistic setting. Here, monoclonal antibodies (mAbs) were derived from MHV-68-infected mice and all those recognizing infected-cell surfaces were tested for their capacity to neutralize MHV-68 virions. All of the neutralizing mAbs identified were specific for the viral glycoprotein H (gH)-gL heterodimer and required both gH and gL to reproduce their cognate epitopes. Based on antibody interference, there appeared to be two major neutralization epitopes on gH-gL. Analysis of a representative mAb indicated that it blocked infection at a post-binding step--either virion endocytosis or membrane fusion. [less ▲]

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See detailChemical Composition Of The Leaf Oil Of Mentha Rotundifolia (L.) From Algeria
Brada, M.; Bezzina, M.; Marlier, M. et al

in Journal of Essential Oil Research (2006), 18(6), 663-665

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See detailComparison of noise, hot and cold contrast of eight tomographic camera models.
Seret, Alain ULg; Nguyen, Thibaut

in European Journal of Nuclear Medicine and Molecular Imaging (2006), 33(S2), 282

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See detailIntoxications au dextropropoxyphène et au tramadol: bilan d'un an de recueil
Cohen, Sabine; Manchon, Monique; Artur, Michèle et al

in Annales de Toxicologie Analytique (2006), 2

La prescription de plus en plus fréquente du dextropropoxyphène (DP) et du tramadol, deux antalgiques opioïdes, a conduit les membres du groupe de travail "Toxicologie hospitalière" de la Société ... [more ▼]

La prescription de plus en plus fréquente du dextropropoxyphène (DP) et du tramadol, deux antalgiques opioïdes, a conduit les membres du groupe de travail "Toxicologie hospitalière" de la Société Française de Toxicologie Analytique (SFTA) à étudier leur toxicité clinique observée. L'étude a consisté en l'analyse des cas où l'une ou l'autre de ces molécules a été identifiée au décours d'un screening toxicologique réalisé durant l'année 2004 dans les laboratoires hospitaliers des membres de ce groupe. Pour chaque patient ont été recueillis les données démographiques, les concentrations plasmatiques en dextropropoxyphène, norpropoxyphène (NP) ou tramadol, la concentration plasmatique en paracétamol, les médicaments associés et les signes cliniques (digestifs, respiratoires, cardiaques et neurologiques). Aucune relation entre les concentrations plasmatiques de dextropropoxyphène et de paracétamol, ni entre celles de dextropropoxyphène ou de tramadol et la gravité clinique n'a été observée. Les concentrations plasmatiques observées en dextropropoxyphène sont faibles mais doivent attirer l'attention sur une éventuelle intoxication au paracétamol. Les concentrations plasmatiques en tramadol peuvent être élevées mais les intoxications sont dans l'ensemble peu sévères et les concentrations toxiques semblent très supérieures à la concentration de 1 mg/L. [less ▲]

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See detailBacteriocin Activity By Lactobacillus Curvatus Cwbi-B28 To Inactivate Listeria Monocytogenes In Cold-Smoked Salmon During 4 Degrees C Storage
Ghalfi, H.; Allaoui, A.; Destain, Jacqueline ULg et al

in Journal of Food Protection (2006), 69(5),

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See detailNormal and aberrant biological self-assembly: Insights from studies of human lysozyme and its amyloidogenic variants
Dumoulin, Mireille ULg; Kumita, Janet; Dobson, Christopher M

in Accounts of Chemical Research (2006), 39

Studies of lysozyme have played a major role over several decades in defining the general principles underlying protein structure, folding, and stability. Following the discovery some 10 years ago that ... [more ▼]

Studies of lysozyme have played a major role over several decades in defining the general principles underlying protein structure, folding, and stability. Following the discovery some 10 years ago that two mutational variants of lysozyme are associated with systemic amyloidosis, these studies have been extended to investigate the mechanism of amyloid fibril formation. This Account describes our present knowledge of lysozyme folding and misfolding, and how the latter can give rise to amyloid disease. It also discusses the significance of these studies for our general understanding of normal and aberrant protein folding in the context of human health and disease. [less ▲]

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See detailUtilisation de la microchimie de l'otolithe pour discriminer les populations de chabots au sein du bassin de la Meuse walonne
Sonny, Damien; Bologne, Guy; Duchesne, Jean-Clair ULg et al

in Cahiers d'Ethologie (2006), 22(2), 39-50

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See detailAnalysis By Gc/Fid And Gc/Ms Of Essential Oil Of Leaflets Of Steganotaenia Araliacea Hochst From Cameroon
Noudjou, Félicité; Ngassoum, Martin B.; Mapongmetsem, Pierre M. et al

in Journal of Essential Oil Research (2006), 18(3), 305-307

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See detailCompte rendu de Sylvain ROUX, "La Recherche du principe chez Platon, Aristote et Plotin"
Gavray, Marc-Antoine ULg

in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (2006), 75

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See detailEssai de construction d'un dispositif d'ingénierie pédagogique facilitant l'autonomie et la motivation : l'expérience du PMTIC en Région wallonne de Belgique
Van de Poël, Jean-François ULg; Brundseaux, Marie-France ULg; Georges, François ULg et al

in Jean-Montcler, Gérard (Ed.) Faciliter les apprentissages autonomes (2006)

Le « Plan Mobilisateur TIC » (PMTIC) est né en 2002 de l'initiative de la Ministre wallonne de l'Emploi et de la Formation, Mme Marie Arena. Ce plan est destiné à sensibiliser et à former aux TIC une ... [more ▼]

Le « Plan Mobilisateur TIC » (PMTIC) est né en 2002 de l'initiative de la Ministre wallonne de l'Emploi et de la Formation, Mme Marie Arena. Ce plan est destiné à sensibiliser et à former aux TIC une partie du public des demandeurs d'emploi. Il s'inscrit dans la perspective du sommet de Lisbonne sur la société de la connaissance et dans le contrat d'avenir de la Région wallonne (2002).[...] Le Laboratoire de Soutien à l’Enseignement Télématique (LabSET) de l’Université de Liège s’est vu confier la coordination pédagogique des 109 opérateurs de formation retenus dans le cadre du PMTIC. Cette mission de coordination pédagogique recouvre des tâches nombreuses parmi lesquelles nous pouvons distinguer notamment un suivi sur le terrain des opérateurs, la mise en place de journées de formation continue des formateurs et le développement de modules de formation disponibles en ligne pour les stagiaires. [less ▲]

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See detailQTL and candidate genes for fecundity in sows
Buske, Bernd ULg; Sternstein, Ina; Brockmann, Gudrun

in Animal Reproduction Science (2006), 95(3), 167-183

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See detailCrossover from intravalley to intervalley vortex motion in type-II superconductors with a periodic pinning array
Raedts, S.; Silhanek, Alejandro ULg; Moshchalkov, V. V. et al

in Physical Review. B : Condensed Matter (2006), 73(17),

We have determined the transition from intravalley vortex motion (Campbell regime) to intervalley motion (critical state regime) in Pb thin films with and without a square array of holes (antidots) by ... [more ▼]

We have determined the transition from intravalley vortex motion (Campbell regime) to intervalley motion (critical state regime) in Pb thin films with and without a square array of holes (antidots) by means of ac susceptibility chi(T,H) measurements. The Campbell regime is characterized by a maximum dissipation chi(')(max) dependent on the ac excitation h but nearly temperature independent. In contrast, in the critical state regime, the height of the dissipation peak remains constant, whereas its position shifts to lower temperatures with increasing h. We introduce an alternative way for determining the temperature dependence of the ac onset of the Bean critical state by analyzing the critical current density J(T) extracted from the chi(')(T) data at several h. We demonstrate that the presence of a periodic pinning array strongly affects the extension of the crossover area in the h-T diagram between these regimes. We show that this effect can be ascribed to the lower dispersion of the pinning energy together with the higher topological order for the antidot sample. [less ▲]

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See detailMAXIMIZATION OF PULL-IN VOLTAGE OF MICRO-ELECTROMECHANICAL STRUCTURES USING TOPOLOGY OPTIMIZATION
Lemaire, Etienne ULg; Rochus, Véronique ULg; Fleury, Claude ULg et al

Conference (2006)

The design problem consists in maximizing the pull-in voltage using topology optimization method, which is formulated as an optimal material distribution. In addition to the classical volume constraint ... [more ▼]

The design problem consists in maximizing the pull-in voltage using topology optimization method, which is formulated as an optimal material distribution. In addition to the classical volume constraint, different structural constraints could be taken into consideration. Sensitivity analysis is one of the key issues of the optimization process and is performed with the formulation of eigenvalue topology optimization problems. Here the paper investigates topology optimization of strongly coupled electromechanical systems. To avoid important modifications of the electric field by the optimization process, this first study considers a non design electrode and use topology optimization to design an optimal suspension structure. Solution procedure of the optimization problem is based on CONLIN optimizer using a sequential convex programming. This method that has proved its efficiency in many structural problems (sizing, shape) is here tailored to strongly coupled multiphysics design problems under consideration. The choice of appropriate explicit convex approximations schemes for multiphysic problems is investigated. The proposed method is illustrated and validated on microbeam optimization applications. [less ▲]

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See detailComparaison de trois approches pour l'estimation de l'incertitude.
Marini Djang'Eing'A, Roland ULg; Chiap, Patrice ULg; Boulanger, Bruno ULg et al

in Acta Clinica Belgica. Supplementum (2006), (1), 60-2

Three different approaches for the estimation of uncertainty measurements using the same analytical method were compared, namely validation, robustness and inter-laboratory studies. The uncertainty ... [more ▼]

Three different approaches for the estimation of uncertainty measurements using the same analytical method were compared, namely validation, robustness and inter-laboratory studies. The uncertainty obtained with the robustness study! predicted well the uncertainty of the inter-laboratory study. On the other hand, the uncertainty estimation obtained with the validation study is lower than those obtained with the two other approaches but is still acceptable as long as the analytical method will be used in a single laboratory. [less ▲]

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See detailDetecting natural canopy gaps in Amazonian rainforest.
Colson, F; Gond, V; Freycon, V et al

in Bois et Forêts des Tropiques (2006), 289(3), 69-79

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