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See detailLocal estradiol synthesis in the brain and its implication in male and female sexual motivation of Japanese quail
de Bournonville, Catherine ULg; Schmit, Mélanie; Ball, Gregory F et al

in Trabajos del Instituto Cajal (2013)

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See detailProcessing of Ti alloys by additive manufacturing: a comparison of the microstructures obtained by laser cladding, selective laser melting and electron beam melting
Reginster, Sylvie ULg; Mertens, Anne ULg; Paydas, Hakan ULg et al

in Materials Science Forum (2013), 765

Additive manufacturing processes such as laser cladding (LC) or selective laser melting (SLM) appear very promising in view of an economic near-net-shape production – and also, in the case of LC, the ... [more ▼]

Additive manufacturing processes such as laser cladding (LC) or selective laser melting (SLM) appear very promising in view of an economic near-net-shape production – and also, in the case of LC, the restoration - of complex and (almost) fully dense parts from Ti alloys. Both techniques involve the melting of a metallic powder with a laser. In the SLM process, the metallic powder is deposited layer by layer in a powder bed and then molten locally according to the desired shape, whereas in LC, the metallic powder is directly projected onto a substrate through a nozzle coaxial with the laser beam. The present research aims at comparing Ti-6Al-4V samples processed by these two techniques with reference samples produced by electron beam melting (EBM), another well established additive manufacturing process (patented by Arcam AB Company) in which a powder bed is molten locally by means of an electron beam. In all three processes, the melt pool undergoes an ultrafast cooling and solidifies very rapidly once the beam has left the area, thus giving rise to strongly out-of-equilibrium microstructures. Yet, each one of these processes also has its own specificities e.g. in terms of scanning strategy and of working atmosphere (low vacuum vs. protective Ar flow). In the present work, the microstructures obtained by these three processes have been compared in details, with a particular attention for characteristics such as porosity, grain size, and the various phases present. Since epitaxial growth of the newly deposited layer on the material previously solidified has been shown [1, 2] to exert a strong influence on the microstructure and on the resulting mechanical properties, great care has been taken to study the microstructural anisotropy associated with each one of the three processes. [less ▲]

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See detailDéveloppement et validation de la version française d'un questionnaire traitant des attentes des patients dans l'arthrose des membres inférieurs
NEUPREZ, Audrey ULg; Delcour, JP; Fatemi, F et al

in Revue du Rhumatisme (2013), 80(S1), 181

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See detailExperimental and numerical study of TA6V mechanical behavior under different quasi-static strain paths at room temperature
Gilles, Gaëtan ULg; Habraken, Anne ULg; Cazacu, Oana et al

in AIP Conference Proceedings (2013), 1532

This paper presents an experimental study of the quasi-static mechanical behavior of TA6V titanium alloy. Different monotonic tests were carried out in several orientations in the plane of the sheet in ... [more ▼]

This paper presents an experimental study of the quasi-static mechanical behavior of TA6V titanium alloy. Different monotonic tests were carried out in several orientations in the plane of the sheet in order to characterize the anisotropy and the tension-compression asymmetry exhibited by the material. Initial yielding is modeled by the phenomenological CPB06 criterion and Voce's isotropic hardening is used to describe its evolution. The simulation of a deep-drawing process is performed using the proposed constitutive modeling and compared with experimental data. [less ▲]

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See detailSurface and lipid interaction properties of novel rhamnolipids to explain their eliciting activity
Nasir, Mehmet Nail ULg; Monhonval, Pierre; Nott, Katherine ULg et al

in European Biophysics Journal [=EBJ] (2013), 42(S1), 168

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See detailComparison of Immune Reconstitution after Hematopoietic Stem Cell Transplantation with Flu-TBI versus TLI-ATG Conditioning
Hannon, Muriel ULg; Humblet-Baron, S.; Graux, C. et al

in Belgian Journal of Hematology (2013), Abstracts book(Supplement of 28th General Meeting of the Belgian Hematological Society), 38

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See detailHydrological and geopedological dynamics of a forested slope
Deraedt, Deborah ULg; Degré, Aurore ULg; Colinet, Gilles ULg

in Geophysical Research Abstracts (2013), 15

Though forested watersheds are really particular in terms of hydrodynamics, most of the hydrological models oversimplify the phenomena involved. More investigations are unavoidable to improve the ... [more ▼]

Though forested watersheds are really particular in terms of hydrodynamics, most of the hydrological models oversimplify the phenomena involved. More investigations are unavoidable to improve the knowledge and the modelling of this environment. Here is the aim of this study. The studied slope is located on the Houille watershed in the West of the Belgian Ardenne (50 1’47”N, 4 53’22”E) on a silty rocky soil. The site is situated under a Douglas fir (Pseudotsuga menziesii (MIRB.) FRANCO) and spruce stand cover (Picea abies (L.) Karst). It is about 160 meters long with a North-West facing slope between 7 and 55%. The goal of the study is : - to characterise the hydrological and pedogeological dynamics along a forested slope, - to compare these dynamics with the tree growth. For the geopedological part of the study, eight pits were dug to describe the soil and take some soil samples used for granulometric, chemical, etc. analysis. We have used geophysical methods (Electrical Resistivity Tomography and Ground Penetrating Radar) to estimate the soil depth. As for the hydrological part of this study, moisture sensors (capacitive and TDR) have been installed in the pits along the slope. A dye tracing test has been performed to underline the preferential flow and the importance of the subsurface flow. Several trees have been equipped with dendrometers and some measures of the LAI and the height of the trees are planned. [less ▲]

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See detailEffect of abrupt preload reduction on left atrial and ventricular pressures in a multi-scale mathematical model of the cardiovascular system
Pironet, Antoine ULg; Dauby, Pierre ULg; Kosta, Sarah ULg et al

in European Heart Journal Supplements : Journal of the European Society of Cardiology (2013), 34

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See detailPrediction of residual stresses by FE simulations on bimetallic work rolls during cooling
Neira Torres, Ingrid ULg; Gilles, Gaëtan ULg; Tchuindjang, Jérôme Tchoufack ULg et al

in Computer Methods in Materials Science (2013), 13(1), 84-91

Bimetallic rolls used in the roughing stands of the Hot Strip Mill require mixed properties as a high wear resistance for the shell material and an enhanced toughness for the core material. The bimetallic ... [more ▼]

Bimetallic rolls used in the roughing stands of the Hot Strip Mill require mixed properties as a high wear resistance for the shell material and an enhanced toughness for the core material. The bimetallic roll studied in this paper is obtained from a vertical spin casting process followed by cooling and subsequent heat treatments. Failure of the compound roll sometimes occurs during the cooling stage of the casting route or later during the thermal treatments. It requires to deeply investigate the thermo mechanical metallurgical interactions generated during cooling and heat treatment in order to find the origin of cracks. For this purpose, a thermo metallurgic mechanical finite element model is used. However these numerical simulations require a high amount of mechanical, thermal and metallurgical parameters. In order to determinate these parameters, a study of available data for estimation of mechanical parameters was performed. Thermo physical parameters were obtained by DTA and DSC methods. Metallurgical characterization by inverse numerical method based on available CCT diagrams was performed to determine the TTT diagrams. First cooling numerical simulations are presented, allowing a rough estimate of residual stresses values and the identification of key parameters for predicting accurate residual stresses by sensitivity analysis. [less ▲]

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See detailGrote scheppen zoete broodpap : de receptie van Hendrik Conscience in Frankrijk
Andringa, Kim ULg

in Verslagen en Mededelingen van de Koninklijke Academie voor Nederlandse Taal- en Letterkunde (2013), 123(2/3),

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See detailPrevalence of vitamin D inadequacy in European postmenopausal women aged over 80 years
Bruyère, Olivier ULg; Slomian, Justine ULg; Beaudart, Charlotte ULg et al

in European Geriatric Medicine (2013), 4(S1), 13-14

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See detailSymmetries in multi-Higgs-doublet models
Ivanov, Igor ULg; Vdovin, Evgeny

in AIP Conference Proceedings (2013)

We report the recent progress in understanding of symmetries which can be implemented in the scalar sector of electroweak symmetry breaking models with several Higgs doublets. In particular we present the ... [more ▼]

We report the recent progress in understanding of symmetries which can be implemented in the scalar sector of electroweak symmetry breaking models with several Higgs doublets. In particular we present the list of finite reparametrization symmetry groups which can appear in the three-Higgs-doublet models. [less ▲]

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See detailDevelopment of a non lethal sampling method to monitor immune response and disease progression in salmonid fish
Mira Monte, Milena ULg; Urquhart, K.; Hoare, R. et al

in Fish & Shellfish Immunology (2013)

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See detailSterile neutrinos and $R_K$
Vicente, Avelino ULg

in Journal of Physics: Conference Series (2013), 447

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See detailValence transversities: the collinear extraction
Courtoy, Aurore ULg; Bacchetta, Alessandro; Radici, Marco

in PoS - Proceedings of Science (2013)

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See detailInitiation of methane turbulent flux measurements over a grazed grassland in Belgium
Dumortier, Pierre ULg; Aubinet, Marc ULg; Chopin, Henri ULg et al

in Geophysical Research Abstracts (2013), 15

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See detailSimulation von Extraktionskolonnen für wässrige Zweiphasensysteme
Schmidt, M; Wessling, M; Pfennig, Andreas ULg

in Chemie Ingenieur Technik (2013)

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See detailSNR dependence of mean kurtosis and how to correct it
André, Elodie ULg; Phillips, Christophe ULg; Farrher, Ezequiel et al

in Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society For Magnetic Resonance in Medicine. Scientific Meeting and Exhibition (2013), 21

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See detailStudy on the sensitivity of three oat varieties to the saddle gall midge, Haplodiplosis marginata (von Roser) (Diptera: Cecidomyiidae)
Censier, Florence ULg; Chavalle, Sandrine ULg; San Martin y Gomez, Gilles et al

in Communications in Agricultural and Applied Biological Sciences (2013), 78(2), 287-292

The saddle gall midge, Haplodiplosis marginata (von Roser, 1840) is a univoltine pest of cereals which occurs in Europe. The larvae feed on stems and attractive saddle-shaped depressions, driving to ... [more ▼]

The saddle gall midge, Haplodiplosis marginata (von Roser, 1840) is a univoltine pest of cereals which occurs in Europe. The larvae feed on stems and attractive saddle-shaped depressions, driving to important yield losses when the galls are numerous. After 40 years without any reporting, large populations of H. marginata and important damage have been observed since 2010 in wheat crops in Belgium, especially in the Flemish Polders where clay soils and intensive farming of cereals favour heavy infestations. According to some research conducted in the 1960s during the last outbreak, oat (Avena sativa L.) is known to be one of the less favourable hosts to the saddle gall midge. Our study was performed in order to assess the host sensitivity of three oat varieties currently grown in Belgium: EVITA, EFFEKTIV and FREDDY. Therefore, oat varieties were sown on infested soil in two separate enclosures in a glasshouse. In the first enclosure, only the three oat varieties were grown; in the second one, these three oat varieties were grown together with two varieties of spring wheat: GRANNY and KWS CHAMSIN. Two parameters were measured: the percentage of leaves with laid eggs, and the number of galls per stem. The percentage of leaves with eggs showed that the infestation was significantly lower on oats when they were in presence of wheat. The egg infestation was also significantly higher on wheat than on oat, which means oat is a much less favourable host plant than spring wheat for egg laying. Oat varieties were significantly different from each other regarding the number of galls per stem, but with very little damage compared to wheat. The FREDDY variety even seemed to be completely resistant to saddle gall midge, as no galls were observed although there was a similar percentage of leaves with eggs for the three oat varieties. Cropping oat could thus contribute to reduce infestations of H. marginata. [less ▲]

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See detailRecensement des dosages d'alcool sanguin effectués dans le cadre de la sécurité routière
DEVILLE, Marine ULg; Charlier, Corinne ULg

in Acta Clinica Belgica (2013), 68(6), 479

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See detailModélisation du captage post-combustion du CO2 avec évaluation de la dégradation des solvants
Léonard, Grégoire ULg; BELLETANTE, Ségolène; Cabeza Mogador, Bruno et al

in Récents Progrès en Génie des Procédés (2013), 104

Post-combustion CO2 capture in power plants is one of the most mature technologies for a short-term and large-scale decrease of CO2 emissions while simultaneously addressing the growing global energy ... [more ▼]

Post-combustion CO2 capture in power plants is one of the most mature technologies for a short-term and large-scale decrease of CO2 emissions while simultaneously addressing the growing global energy demand. CO2 is chemically absorbed in an amine solvent that can be regenerated at higher temperature, producing a pure CO2 stream. However, the large impact of this technology on the power plant efficiency and the environmental penalty are the main drawbacks for large-scale implementation. In this work, an innovative approach combining process modeling and evaluation of the environmental penalty due to amine degradation is presented. Based on experimental results, the kinetics of solvent oxidative and thermal degradation is estimated and included in the process model developed in Aspen Plus. Using this model, the influence of operating parameters like the oxygen concentration in the flue gas or the solvent regeneration pressure is studied. This model is a first step for a multi-objective optimization of the CO2 capture process, assessing both energy and environmental penalties of this technology. [less ▲]

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See detailGrétry mémorialiste ou l’ethos du compromis
Daubercies, Laurence ULg

in Art&Fact (2013)

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See detailAnother Generalization of Abelian Equivalence: Binomial Complexity of Infinite Words
Rigo, Michel ULg; Salimov, Pavel ULg

in Lecture Notes in Computer Science (2013), 8079

The binomial coefficient of two words u and v is the number of times v occurs as a subsequence of u. Based on this classical notion, we introduce the m-binomial equivalence of two words refining the ... [more ▼]

The binomial coefficient of two words u and v is the number of times v occurs as a subsequence of u. Based on this classical notion, we introduce the m-binomial equivalence of two words refining the abelian equivalence. The m-binomial complexity of an infinite word x maps an integer n to the number of m-binomial equivalence classes of factors of length n occurring in x. We study the first properties of m-binomial equivalence. We compute the m-binomial complexity of the Sturmian words and of the Thue-Morse word. We also mention the possible avoidance of 2-binomial squares. [less ▲]

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See detailQuadripulse Repetitive Transcranial Magnetic Stimulation on Visual Cortex for Chronic Migraine Prevention: A Pilot-Trial
Sasso d'Elia, Tullia; Vigano, Alessandro; Fataki, Michel et al

in Cephalalgia : An International Journal of Headache (2013), 33(8), 49

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See detailStudy of a solar concentrator for space based on a diffractive/refractive optical combination
Michel, Céline ULg; Loicq, Jerôme ULg; Languy, Fabian ULg et al

in AIP Conference Proceedings (2013), (1556), 97-100

This paper presents a new design of a planar solar concentrator for space applications focusing on two spatially separated PV cells, allowing independent control of output power of each cell. It has the ... [more ▼]

This paper presents a new design of a planar solar concentrator for space applications focusing on two spatially separated PV cells, allowing independent control of output power of each cell. It has the advantages of both spectral splitting and solar concentration by the combination of a blaze transmission diffraction grating and a flat cylindrical Fresnel lens. An optical optimization has been realized and two variations of configuration have been developed to improve tracking tolerance: first, a design completed by secondary reflective concentrators and second, a symmetrical configuration composed of two lenses. First numerical results are presented, highlighting the possibility to design a concentrator at about 10×, with an electrical output power about 290W/m² lens and less than 10% losses for tracking errors lower than ±0.9°. [less ▲]

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See detailCorrelation between RNA and protein levels in a large european series from the LYSA
Bossard, C.; Dobay, M.P.; Lamant, L. et al

in Hematological Oncology (2013), 31 Suppl.1

Introduction: CD22 is expressed on most B-non-Hodgkin lymphomas (NHL); inotuzumab ozogamicin (INO) is an anti-CD22 antibody conjugated to calicheamicin. This study evaluated the safety and tolerability of ... [more ▼]

Introduction: CD22 is expressed on most B-non-Hodgkin lymphomas (NHL); inotuzumab ozogamicin (INO) is an anti-CD22 antibody conjugated to calicheamicin. This study evaluated the safety and tolerability of INO plus R-CVP in patients (pts) with relapsed/refractory CD22+ B-NHL. Efficacy data were also collected. Methods: Part 1 of this open-label study identified a maximum tolerated dose (MTD) of INO 0.8mg/m,2 on day 2 plus R-CVP (rituximab 375mg/m,2 cyclophosphamide 750mg/m,2 and vincristine 1.4mg/m,2 on day 1; prednisone 40mg/m,2 on days 1-5) every 21 days. Subsequently, pts were enrolled in the MTD confirmation cohort (part 2, n = 10), which required a dose-limiting toxicity rate of <33% in cycle 1 and <4 pts discontinuing prior to cycle 3 due to an adverse event (AE) in the MTD expansion cohort (part 3, n = 22), which explored preliminary activity. Results: Parts 2 and 3 enrolled 32 pts: 16 pts with diffuse large B-cell lymphoma, 15 with follicular lymphoma and one with mantle cell lymphoma. Median age was 64.5 years (range 44-81 years); 34% of pts had 1 prior regimen, 34% had 2, 28% had ≥3 and 3% had none (median 2; range 0-6).Median treatment duration was five cycles (range 1-6). Part 2 confirmed the MTD as standard dose R-CVP plus INO 0.8mg/m,2; 2/10 pts had a dose-limiting toxicity (grade 3 increased ALT/AST, grade 4 neutropenia requiring G-CSF). One pt discontinued because of an AE prior to cycle 3. Common treatment-related AEs were thrombocytopenia (78%), neutropenia (66%), fatigue (50%), leukopenia (50%), nausea (41%) and lymphopenia (38%); common grade 3/4 AEs were neutropenia (63%), thrombocytopenia (53%), leukopenia (38%) and lymphopenia (31%). There was one case of treatment-related fatal pneumonia with grade 4 neutropenia. Ten pts discontinued treatment due to AEs; thrombocytopenia/delayed platelet recovery was the leading cause (grade 1/2, n = 6; grade 3/4, n = 3). Objective response rate (ORR) was 77% (n = 24/31 evaluable pts), including 26% (n=8/31) with complete response (CR); three pts had stable disease. Of the pts with follicular lymphoma, ORR was 100% (n = 15/15), including seven pts with CR. Of the pts with diffuse large B-cell lymphoma, ORR was 60% (n = 9/16), including one pt with CR. Conclusions: Results suggest that INOplus R-CVP has acceptable toxicity and promising activity in relapsed/refractory CD22+ B-NHL. The most common grade 3/4 AEs were hematologic. Follow-up for progression-free and overall survival is ongoing. [less ▲]

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See detailInteraction of fengycin with stratum corneum mimicking model membranes: a calorimetry study
Nasir, Mehmet Nail ULg; Eeman, Marc; Olofsson, Gerd et al

in European Biophysics Journal [=EBJ] (2013), 42(S1), 168

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See detailModeling of non-covalent complexes of the cell-penetrating peptide CADY and its siRNA cargo
Crowet, Jean-Marc ULg; Lins, Laurence ULg; Deshayes, Sébastien et al

in European Biophysics Journal [=EBJ] (2013), 42(S1), 63

CADY is a cell-penetrating peptide spontaneously making non-covalent complexes with short interfering RNAs (siRNAs) in water. Neither the structure of CADY nor that of the complexes is resolved. We have ... [more ▼]

CADY is a cell-penetrating peptide spontaneously making non-covalent complexes with short interfering RNAs (siRNAs) in water. Neither the structure of CADY nor that of the complexes is resolved. We have calculated and analyzed 3D models of CADY and of the non-covalent CADY–siRNA complexes in order to understand their formation and stabilization. Data from the ab initio calculations and molecular dynamics support that, in agreement with the experimental data, CADY is a polymorphic peptide partly helical. We calculated and compared several complexes with peptide/siRNA ratios of up to 40. The initial binding of CADYs is essentially due to the electrostatic interactions of the arginines with siRNA phosphates. Due to a repetitive arginine motif (XLWR(K)), CADYs can adopt multiple positions at the siRNA surface. Nevertheless, several complex properties are common: an average of 14 ± 1 CADYs is required to saturate a siRNA. The 40 CADYs/siRNA that is the optimal ratio for vector stability always corresponds to two layers of CADYs per siRNA and the peptide cage is stabilized by hydrophobic CADY–CADY contacts. The analysis demonstrates that the hydrophobicity, the positive charges and the polymorphism of CADY are mandatory to make stable the CADY–siRNA complexes. [less ▲]

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See detailFirst steps towards an explicit modeling of aba production and translocation in relation with the water uptake dynamics
Lobet, Guillaume ULg; Pagès, Loic; Draye, Xavier

in Acta Horticulturae (2013), 991

Water flow in the plant continuum is thought to be controlled by the leaf, xylem and the root radial conductances. Leaf conductance is widely recognized as the master control in the system as it can act ... [more ▼]

Water flow in the plant continuum is thought to be controlled by the leaf, xylem and the root radial conductances. Leaf conductance is widely recognized as the master control in the system as it can act as a switch in the water flow, even under high transpiration demand. The control of the stomatal aperture by the plant has been the object of numerous research projects since decades and different models have been developed to study stomatal regulation. The plant hormone abscisic acid (ABA) produced in the leaves acts as an endogenous signal triggering stomatal closure, but is also thought to act as a long distance signal that is produced by roots experiencing water deficit. However, the relative contributions of leaf-supplied ABA, root-supplied ABA and xylem water potential in the regulation of water flow remains a matter of controversy. Using a novel functional structural plant model (PlaNet-Maize-ABA), we report here a first attempt to explicitly simulate ABA production, degradation, translocation in all plant organs and their effect on the transpiration flow. [less ▲]

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See detailGestion de la reproduction dans les troupeaux bovins laitier
Hanzen, Christian ULg; Rao, Anne-Sophie ULg; Theron, Léonard ULg

in Revue Africaine de Santé et de Productions Animales [=RASPA] (2013)

La décision de la commission européenne de mettre fin en 2015 à la politique des quotas laitiers mise en place en 1984 va vraisemblablement bousculer le paysage laitier européen mais aussi mondial. Plus ... [more ▼]

La décision de la commission européenne de mettre fin en 2015 à la politique des quotas laitiers mise en place en 1984 va vraisemblablement bousculer le paysage laitier européen mais aussi mondial. Plus que jamais les grands pays producteurs (Etats-Unis, Canada, France, Allemagne, Pays-Bas, Irlande, Nouvelle-Zélande) vont dans ce contexte de libéralisation et de globalisation de « l’or blanc » se livrer une concurrence effrénée dans laquelle la majorité des producteurs n’auront que peu ou rien à dire. L’augmentation attendue de la production laitière mondiale (15 milliards de litres par an entre 2010 et 2020) résulte bien entendu de l’augmentation de la population mondiale (3,1 milliards entre 1970 et 2010 auxquels s’ajouteront 2 milliards de plus en 2050) mais également du fait que davantage de personnes en Extrême et Moyen-Orient, en Amérique du Sud et en Afrique du Nord consomment davantage de lait et de produits dérivés. L’enjeu pour la majorité des éleveurs européens ou non va être de réduire les coûts liés à la production laitière en (1) optimisant les ressources alimentaires, (2) en améliorant la santé mammaire, (3) en augmentant la longévité des vaches, (4) en réduisant la fréquence des maladies métaboliques, locomotrices ou infectieuses et (5) en améliorant la fécondité. L’amélioration de la fécondité passe définition oblige par la réduction de l’âge du premier vêlage et de l’intervalle entre vêlages. Par gestion, il faut entendre dans un premier temps la quantification du problème et dans un second l’identification des diverses hypothèses diagnostiques qui en sont responsables. Les facteurs de nature alimentaire, thérapeutique, pathologique ou de gestion susceptibles de modifier l'évolution normale de chaque femelle depuis sa naissance jusqu'au moment de sa réforme sont de nature diverse. Ils concernent l'individu ou le troupeau. Ils sont directement ou indirectement responsables de leur fertilité et/ou de leur fécondité. Leurs effets se manifestent de manière isolée ou synergique. Ils concernent aussi bien les animaux que ceux qui en ont la responsabilité sanitaire ou de gestion. Ils sont de nature anatomique, infectieuse, hormonale, thérapeutique ou zootechnique. Par gestion de la reproduction, il faut entendre une approche épidémiologique, globale de l’infécondité qui en intègre les aspects spécifiques sans négliger pour autant les autres aspects qui ne lui sont pas directement liés. Par gestion de la reproduction, on peut aussi comprendre sa gestion hormonale à savoir le recours à des protocoles thérapeutiques de synchronisation des inséminations et donc des vêlages. L’une et l’autre approche s’inscrive dans le contexte d’une identification systématique des animaux à risque au travers d’un suivi mensuel de reproduction. Ce suivi est la clé de voûte d’une gestion de la reproduction. Au travers d’une démarche hypothético-déductive, la présente communication se propose de - quantifier les performances de reproduction au travers des ses principaux paramètres de fécondité et de fertilité : cette première étape est indispensable pour identifier la présence ou non d’un problème d’infécondité, - passer en revue et de manière aussi synthétique que possible les diverses hypothèses et donc les facteurs de risque responsables d’infécondité - proposer des stratégies curatives ou préventives, anti-infectieuses ou hormonales voire zootechniques pour limiter les conséquences de l’infécondité. [less ▲]

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See detailBehavioural Ecology of Bonobos (Pan paniscus) in the Forest-Savannah Mosaics of Western Democratic Republic of Congo
Vimond, Marie; Serckx, Adeline ULg; Beudels-Jamar, Roseline et al

in Folia Primatologica : International Journal of Primatology = Internationale Zeitschrift für Primatologie = Journal international de Primatologie (2013)

The long-term survival of the Endangered bonobo (IUCN, 2012) will depend on well thought out conservation programmes that need to be built both upon the species’ ecological requirements and local socio ... [more ▼]

The long-term survival of the Endangered bonobo (IUCN, 2012) will depend on well thought out conservation programmes that need to be built both upon the species’ ecological requirements and local socio-economics realities. Yet there is still a lot to find out, including information on the species geographical distribution. In 2005, the presence of a western population was confirmed in the forest-savannah mosaic in the south-western part of the Lake Tumba Landscape. With the exception of an early study carried out in Lukuru, the species is mainly known from lowland rainforest research sites in the Cuvette Centrale. The western forest-savannah mosaic is an ecotone with a marked seasonal pattern, a high variability of habitats and monthly variations in fruit production. All this leads to spatio-temporal variation of food availability. In order to increase studies and monitoring of this unique population, WWF initiated a habituation process of two groups of bonobos 6 years ago. The groups are now semi-habituated, making the collection of direct daily observations possible. Our objective is to describe the behavioural strategies developed by this population in order to cope with spatio-temporal variations of food availability. This will be approached by identifying daily activity, ranging and grouping patterns, in order to understand how they affect social structure. It should also allow us to define the use of savannahs. Our findings will help determine specific conservations measures for this endangered species. [less ▲]

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See detailInfluence of lignin in Reticulitermes santonensis: symbiotic interations investigated through proteomics
Bauwens, Julien ULg; Tarayre, Cédric ULg; Brasseur, Catherine ULg et al

in Symbiosis (2013)

The gut of lower termites is populated by numerous microbial species belonging to prokaryotes, fungi, yeasts and protists. These micro-organisms are organized in a complex symbiotic system, interacting ... [more ▼]

The gut of lower termites is populated by numerous microbial species belonging to prokaryotes, fungi, yeasts and protists. These micro-organisms are organized in a complex symbiotic system, interacting together and with the insect host. Their likely ability to degrade ligno-cellulosic compounds could lead to improvements in second generation biofuels production. Lignin elimination represents a critical point as this polymer significantly interferes with industrial process of cellulose. Although host produces its own lignin-degrading enzymes, some symbionts may participate in digestion of lignin and its degradation products in termite gut. Here, we compared gut proteomes from R. santonensis after rearing on artificial diets composed of cellulose with and without lignin. The effect of lignin in artificial diets on different parts of the digestive tract was compared through liquid chromatography associated with tandem mass spectrometry (LC-MS/MS) experiments. Enzymatic assays were performed to characterize activities present in R. santonensis digestive tract after feeding on artificial diets. Microscopic observations of microbial communities provided some information on population balances after feeding experiment. [less ▲]

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See detailPhenomenology of $\alpha_s$ at intermediate energy: the quark-hadron duality approach
Courtoy, Aurore ULg

in PoS - Proceedings of Science (2013)

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See detailAltered cartilage phenotype in mice lacking Sirt-1 gene
Gabay, Odile; Zaal, K; Sanchez, Christelle ULg et al

in Osteoarthritis and Cartilage (2013), 21

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See detailRisks factors for valvular regurgitations in 3499 equids: a cross-sectional study.
Leroux, Aurélia ULg; Detilleux, Johann ULg; Sandersen, Charlotte ULg et al

in Proceedings of the 2013 ACVIM Forum (2013)

Risk factors for valvular regurgitations (VR) have been suspected in equids, but no extensive epidemiologic study has been performed in a large mixed equine population. Therefore, the aim of this study ... [more ▼]

Risk factors for valvular regurgitations (VR) have been suspected in equids, but no extensive epidemiologic study has been performed in a large mixed equine population. Therefore, the aim of this study was to statistically test risk factors for VR in a large population of equids. Hospital records were reviewed for 3.499 equids, admitted at the internal medicine department of the Liege Equine Teaching Hospital between 1994 and 2011, aged ≥2 years, and which underwent thorough cardiac clinical evaluation. Of this population, 495 cases had ECG and echocardiography performed because of a clinical suspicion of cardiac disease. Chi-square test or logistic regressions (as appropriate) were used to test if breed, gender, age, body weight (BW), and co-existence of various cardiac diseases were risk factors for each VR. Moreover, the risk of development of congestive heart failure (CHF) was tested for each VR. Significance was set at p<0.05. Most of the studied animals were warmbloods, and observed prevalences were 4.4% for mitral regurgitation (MR), 2.1% for aortic regurgitation (AR), 1.7% for tricuspid regurgitation (TR), and 1.0% for pulmonary regurgitation (PR). Significant risk factors were male gender and increasing age for AR (OR=2.03, CI=1.07-4.94), and racehorses breed group and middle-age for TR (OR=4.36; CI=1.10-17.24). No effect of age or BW was demonstrated for MR. MR was the major valvular disease associated with atrial fibrillation (AF), ventricular tachyarrhythmia, PR and CHF. TR was also linked to AF, PR and CHF; but AR was not linked to CHF. In conclusion, several previously suspected risks factors for VR were confirmed statistically in this study and should be taken into account in health and athletic monitoring of horses presenting predisposing factors. [less ▲]

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See detailKoaleszenz in Extraktionskolonnen und Abscheidern
Pfennig, Andreas ULg; Buchbender, Florian; Chuttrakul, P et al

in Chemie Ingenieur Technik (2013)

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See detailDeciphering the role of 75KDA SIRT1 fragment in osteoarthritis
Dvir-Ginzberg, M; Oppenheimer, H; Meir, H et al

in Osteoarthritis and Cartilage (2013), 21

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See detailDetecting correlated di-hadron pairs: about the extraction of transversity and beyond
Radici, Marco; Bacchetta, Alessandro; Courtoy, Aurore ULg

in World Scientific (2013)

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See detailThe neural correlates of recollection and familiarity during aging
Angel, Lucie; Bastin, Christine ULg; Genon, Sarah ULg et al

in Journal of Psychophysiology (2013), 27(Suppl 1), 48

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See detailThe Enhancement of Secondary Succession by Western Lowland Gorillas (Gorilla gorilla gorilla) in a Moist Tropical Forest of Southeast Cameroon
Petre, Charles-Albert ULg; Haurez, Barbara ULg; Tagg, Nikki et al

in Folia Primatologica : International Journal of Primatology = Internationale Zeitschrift für Primatologie = Journal international de Primatologie (2013), 84

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See detailInfusion of CliniMACS (Myltenyi Biotec) Enriched Regulatory T Cells Delays Experimental Xenogeneic Graft-versus-Host Disease
Hannon, Muriel ULg; Lechanteur, C.; Somja, Joan ULg et al

in Belgian Journal of Hematology (2013), Abstracts book(Supplement of 28th General Meeting of the Belgian Hematological Society), 15

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See detailIndirect comparison of bazedoxifene vs. oral bisphosphonates for the prevention of vertebral fractures in postmenopausal osteoporotic women
Reginster, Jean-Yves ULg; Ellis, AG; Luo, X et al

in Osteoporosis International (2013), 24(1), 37

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See detailImportance of LUC and ILUC on the carbon footprint of bioproduct:case of bio-HDPE
Belboom, Sandra ULg; Léonard, Angélique ULg

in International seminar on society and materials (2013)

Due to the depletion of fossil fuels and the increase of greenhouse gas emissions, solutions are needed to replace petrol based products. As a consequence, the number of biobased products developed using ... [more ▼]

Due to the depletion of fossil fuels and the increase of greenhouse gas emissions, solutions are needed to replace petrol based products. As a consequence, the number of biobased products developed using agricultural feedstock is continuously increasing. This study focuses on the carbon footprint of bio-HDPE produced either from Brazilian sugar cane or Belgian sugar beet. The goal of this study is to compare the carbon footprint of bio-HDPE with the fossil one, taking into account the effect of land use change. Common boundaries of the agricultural systems comprise the cultivation step for both crops, i.e. sugar cane and sugar beet, with all associated energy and fertilizer consumptions, the transportation step from field to the industrial plant, the sugar crops transformation into hydrate bioethanol, the by-products valorisation, the dehydration and polymerization steps and the HDPE incineration as end of life issue. Fossil scenario includes the production of ethylene, its polymerization and its incineration. When comparing the entire life cycle of bio and fossil HDPE, the GHG emissions are lower for the biobased product which is the willing effect. This result is only valid if no Land Use Change (LUC) or Indirect Land Use Change (ILUC) effect appears. To assess the environmental impact of the deforestation or of the transformation of a pasture into a field, the EC-Guidelines from the European Union were used in order to calculate the CO2 emissions depending on several parameters. For sugar cane, LUC consists in the transformation of pastures into fields in the region of Sao Paulo in Brazil. Three scenarios can be developed based on different agricultural practices for pasture and field (tillage and fertilizers inputs): the best, the worst and the average. The best case leads to a supplementary environmental gain. The worst and average achieve additional emissions. A payback time, considering the time needed to find again an environmental gain compared to the fossil counterpart, was calculated for the average scenario which is equal to 12 years. The ILUC effect for sugar cane is assumed to be deforestation due to the transformation of forest into pasture induced by the previous LUC effect. The rate of deforestation can vary between 16% or 100% depending on used statistics and leads to a payback time of respectively 26 and 101 years. For sugar beet, no LUC is considered. Indeed, no land expansion is available in Belgium due to small available areas. In the case of an increase of bioplastics production, Belgium should import sugar beet from neighboring countries which can induce ILUC. In this study, sugar beet is assumed to be provided by the Netherlands on pastures previously transformed into fields. The average scenario implies a payback time of 8 years. This study permits to highlight the importance of LUC and ILUC especially for energetic crops dedicated to replace fossil products. This effect can reverse expected results and induce long payback times. [less ▲]

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See detailQUASI-STATIC MECHANICAL BEHAVIOUR OF TI-6AL-4V ALLOY AT ROOM TEMPERATURE
Tuninetti Vásquez, Victor ULg; Gilles, Gaëtan ULg; Milis, Olivier ULg et al

in Complas XII (2013), XII

In order to determine the mechanical behavior of a bulk TA6V alloy, a set of mechanical tests such as shear, compression, tensile monotonic tests, and tensile tests on notched samples are performed. The ... [more ▼]

In order to determine the mechanical behavior of a bulk TA6V alloy, a set of mechanical tests such as shear, compression, tensile monotonic tests, and tensile tests on notched samples are performed. The material is tested at constant strain rate. Full-field optical technique for displacement measurements and strain computation are used for all the experiments. Plastic anisotropy and tension–compression asymmetry are observed. The CPB06 [1] yield criterion adapted for hexagonal close packed (hcp) material is identified. The sensitivity of the material parameters on the identification method as well as the efficiency of the model to predict forces and displacement field are discussed. Validation is done by using Finite Element method (FEM) simulations and 3D Digital Image Correlation (3D-DIC) measurements on specimens with multi-axial stress and strain fields subjected to large deformation. [less ▲]

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See detailOptimizing scale search in species distribution models
Serckx, Adeline ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline et al

in Folia Primatologica : International Journal of Primatology = Internationale Zeitschrift für Primatologie = Journal international de Primatologie (2013), 84

The influence of spatial scale on ecological processes and pattern formation, such as species distribution is a major research topic since decades. It has become even more relevant in the context of ... [more ▼]

The influence of spatial scale on ecological processes and pattern formation, such as species distribution is a major research topic since decades. It has become even more relevant in the context of global change. In many studies the influence of a predictor on a response derived over multiple and discrete spatial scales is evaluated. Due to inherent issue of multiple testing, this approach can be problematic. In this study on bonobos distribution, we suggest a 3-steps procedure that overcomes this problem. It takes into account the decay of a predictor by using a weighting function of distance to the observation of interest. We use variables to account for human pressure, food availability, patchy structure of the forest and nesting sites re-use. In a first step, we run a model with a fixed scale for every predictor based on expert opinion. For significant variables, we derive then in a second step the distance weighted influence over a range of scales. This helps to narrow down the search for the final model parameter estimates. Findings indicate that bonobo distribution is driven on the intermediate scale by forest patches structure. Food availability explains their abundance only at smaller scales. Those results demonstrate the sadly well-known influence of habitat fragmentation on animals’ density and distribution but also highlight the importance to understand influences of scale, the animal perceptions of their environment, by using appropriate statistical procedures. Our method can be particularly useful to formulate specific management hypotheses for conservation. Furthermore, its principles can be of use to other types of studies, such as behavior. [less ▲]

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See detailInhibition de la sclérostine par le romosozumab chez des femmes ménopausées ayant une DMO basse : résultats de l'étude de phase 2
Brown, JP; McClung, MR; Grauer, A et al

in Revue du Rhumatisme (2013), 80(S1), 73

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See detailBolero-6:Phase 2 Study of Everolimus plus Exemestane versus Everolimus or Capecitabine Monotherapy in HR+HER2- Advanced Breast Cancer
Ejlerstsen, Bent; JERUSALEM, Guy ULg; Hurvitz, Sara et al

in Journal of Clinical Oncology (2013), 31

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See detailReduction in VAP incidence by subglottic secretion drainage and antibiotic consumption in ICU patients
VAN CAUWENBERGE, Isabelle ULg; ANCION, Arnaud ULg; LAMBERMONT, Bernard ULg et al

in Intensive Care Medicine (2013), 39(Suppl 2), 465-4660898

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See detailExtension of the Liège Intra Nuclear Cascade model to light ion-induced collisions for medical and space applications
Leray, S.; Mancusi, D.; Kaitaniemi, P. et al

in Journal of Physics: Conference Series (2013), 420

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See detailOleuropein or rutin consumption decreases the spontaneous development of OA in Hartley guinea pig
Sanchez, Christelle ULg; Horcajada, Marie-Noëlle; Membrez, Fanny et al

in Arthritis and Rheumatism (2013), 65

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See detailFinal analysis of overall survival for the Phase III CONFIRM trial: fulvestrant 500 mg versus 250 mg
DI LEO, Angelo; JERUSALEM, Guy ULg; PETRUZELKA, Lubos et al

in Cancer Research. Supplement (2012, December 15), 72(24), 1-4

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See detailDiscriminant BOLD Activation Patterns during Mental Imagery in Parkinson’s Disease
Schrouff, Jessica ULg; Cremers, Julien ULg; D'Ostilio, Kevin ULg et al

in Proceedings of MLINI 2012 (2012, December 07)

Using machine learning based models in clinical applications has become current practice and can prove useful to provide information at the subject’s level, such as predicting an (early) diagnosis or ... [more ▼]

Using machine learning based models in clinical applications has become current practice and can prove useful to provide information at the subject’s level, such as predicting an (early) diagnosis or monitoring the evolution of a disease. However, the performance of these models depends on the choice of a biomarker to detect the presence or absence of a disease. Choosing a biomarker is not straightforward, especially in the case of Parkinson’s disease when compared to healthy subjects. In the present work, we investigated the mental imagery of gait as a biomarker of Parkinson’s disease and showed that the signal in the mesencephalic locomotor region during the mental imagery of gait at a comfortable pace can discriminate significantly between idiopathic Parkinson’s disease patients and healthy subjects. Although there is room for improvement, the results of this preliminary study are promising. [less ▲]

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See detailInnovative Surface Plasmon Resonance biosensing architectures
desfours, Caroline; Hastanin, Juriy ULg; Drucbert, Anne-Sophie et al

in International Conference on Fibre Optics and Photonics (2012, December)

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological ... [more ▼]

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological molecules with a two-wavelength sensor and a SPR Coupler- Disperser spectroscopic sensor. [less ▲]

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See detailNon-thermal radiation from a runaway early-type star
del Valle, M.; Romero, G.E.; De Becker, Michaël ULg

in AIP Conference Proceedings (2012, December), 1505

HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our ... [more ▼]

HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a scenario where HD 195592 is the counterpart of the Fermi γ-ray source. The high-energy emission would be inverse Compton radiation produced in the bowshock of the runaway star. We calculate relativistic particle energy losses and the resulting radiation from the bowshock of HD 195592 and show that the latter is compatible with the detected γ-ray emission. We conclude that the Fermi source 2FGL J2030.7+4417 might be produced, under some energetic assumptions, by inverse Compton up-scattering of infrared photons from locally heated dust. HD 195592 might therefore be the very first object detected belonging to the category of γ-ray emitting runaway massive stars, whose existence has been recently predicted. [less ▲]

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See detailEvaluation d'un protocole de prise en charge nutritionnelle interdisciplinaire chez des patients brulés
MALHERBE, Christian ULg; VERBRUGGE, Anne-Marie ULg; MAGNETTE, André ULg et al

in Nutrition Clinique et Metabolisme (2012, December), 26-Supp1

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See detail(Pré)textes : perspective didactique sur le dépeçage des textes littéraires à des fins d'exemplification
Van Beveren, Julien ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (2012, December), 4

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See detailDynamic simulations of solar combisystems integrating a seasonal sorption storage: Influence of the combisystem configuration
Hennaut, Samuel ULg; Thomas, Sébastien ULg; Davin, Elisabeth ULg et al

in Strojarstvo: Journal for Theory and Application in Mechanical Engineering (2012, December), 54(6), 433-440

This paper focuses on the sizing of solar combisystems with adsorption seasonal storage to target autonomous solar space heating. Two main configurations of the combisystem are simulated, including one or ... [more ▼]

This paper focuses on the sizing of solar combisystems with adsorption seasonal storage to target autonomous solar space heating. Two main configurations of the combisystem are simulated, including one or two tanks. The influence of the seasonal storage on the sizing of the tanks is also discussed. Results show that performances of the system with two tanks are better (2 to 4 % with seasonal storage) but some improvements should be possible for the single tank configuration. The sizing of the sensible storage is nearly independent of the solar collectors area if there is a seasonal storage. The sensible storage size increase with the collectors area without adsorption storage. The analysis is conducted in simulation using the TRNSYS program. [less ▲]

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See detailMeasurement of serum albumin by protein electrophoresis and bromocresol green methods in canine and equine patients
Ramery, Eve ULg; Bureau, Fabrice ULg

in Veterinary Clinical Pathology (2012, December), 41(4), 5

Background: Bromocresol green method (BCG) is routinely used in veterinary laboratories to measure albumin. A good agreement between BCG and electrophoresis (SPE) in healthy domestic animals is reported ... [more ▼]

Background: Bromocresol green method (BCG) is routinely used in veterinary laboratories to measure albumin. A good agreement between BCG and electrophoresis (SPE) in healthy domestic animals is reported. However, in human medicine, at low albumin and high globulin concentrations, BCG also binds to α- and β-globulins fractions. Surprisingly, there is no recent literature evaluating the BCG method in diseased domestic animals. Objective: The purpose of the present study was therefore to compare the serum albumin values obtained by SPE and BCG in canine and equine patients. Methods: Albumin measured by BCG and SPE was compared in the serum from 30 canine and 30 equine patients. Results: Good correlation was found (Spearman´s rho rs = 0.91 in dogs and 0.84 in horses). However, Altman and Bland analysis of results showed a positive bias of BCG with SPE (3.41 g/l in horses and 0.41 g/l in dogs) that increased when only hypoalbuminemic patients were considered (4.17 g/l in horses and 1.31 g/l in dogs). Conclusion: Results confirm that, despite good correlation, BCG method tends to overestimate albumin, especially in hypoalbuminemic patients. This is particularly evident in horses. [less ▲]

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See detailPotentiel de dispersion du sanglier et historique de la colonisation de la plaine agricole
Morelle, Kevin ULg; Prévot, Céline

in Forêt Wallonne (2012, December), 121

Les populations de sangliers augmentent en nombre et étendent leur aire de répartition un peu partout en Europe. En Wallonie, la population de sangliers a quadruplé en 30 ans. Plusieurs études se sont ... [more ▼]

Les populations de sangliers augmentent en nombre et étendent leur aire de répartition un peu partout en Europe. En Wallonie, la population de sangliers a quadruplé en 30 ans. Plusieurs études se sont penchées sur le sujet et les raisons de cette augmentation concernent souvent l’influence du climat. Grâce aux différents suivis réalisés par le DEMNA, les déplacements au sein des populations de sangliers sont mieux compris. L’article se penche d’abord sur le potentiel de dispersion du sanglier en se basant sur les données de bagage de marcassins. Deux variables sont analysées : la distance parcourue dans le cadre de la dispersion natale (mouvement à sens unique à partir du site de naissance d’un individu jusqu’à son site de première reproduction) et le taux de cette dispersion natale. Quelques résultats provenant d’une étude génétique sont également présentés. Le génotypage de 1153 sangliers répartis sur l’ensemble de la Wallonie a mis en évidence quatre sous-populations génétiquement homogènes. Parallèlement à l’augmentation de la taille de ses populations, le sanglier a vu son aire de distribution s’accroître en Wallonie. Un suivi par enquête a été réalisé auprès des conseils cynégétiques et des agents du DNF pour mieux comprendre l’expansion géographique observée. Une première phase de l’enquête visait à retracer l’expansion géographique du sanglier en Wallonie. La seconde phase consistait à réaliser un état des lieux sur la situation actuelle de la distribution du sanglier en périphérie du sillon Sambre-et-Meuse. [less ▲]

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See detailUne étude de la vulnérabilité cognitive des parents au premier degré de patients schizophrènes
Wagener, Aurélie ULg; Duke, Géraldine; Xhenseval, Laure et al

in Revue Francophone de Clinique Comportementale et Cognitive (2012, December), XVII(4), 53

Schizophrenic patients and their first-degree relatives suffer from cognitive deficits in different area (memory, executive, attentional and language functions) which allows us to consider these deficits ... [more ▼]

Schizophrenic patients and their first-degree relatives suffer from cognitive deficits in different area (memory, executive, attentional and language functions) which allows us to consider these deficits as endophenotypes of schizophrenia. Schizophrenic patients also suffer from a lack of autobiographical memory and instability of identity: our study aims to determine whether this deficit and this instability are endophenotypes of schizophrenia. In order to reach this objective, we evaluated first-degree relatives. The results show that first-degree relatives suffer from cognitive deficits but, contrary to our hypotheses, not any deficit of specificity or instability of identity have been highlighted among these parents. [less ▲]

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See detailPatterns of Clinical Management and Resource Utilisation for Postmenopausal Hormone-Receptor-Positive HER2-Negative (HR+ HER2-) Advanced Breast Cancer (BC) in Europe
ANDRE, Fabrice; MARINSEK, Nina; RICCI, Jean-François et al

in Value in Health (2012, November), 15(7), 419

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See detailHighly excited states of baryons in large Nc QCD
Matagne, Nicolas; Stancu, Floarea ULg

in Bled Workshops in Physics (2012, November), 13(1), 47-53

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See detailSingle nucleotide polymorphisms in the promoter regions of Foxp3 and ICOSLG genes are associated with Alopecia areata.
Conteduca, Giuseppina ULg

in Clinical & Experimental Medicine (2012, November), 14(1), 91-7

Alopecia areata (AA), an autoimmune disease affecting anagen stage hair follicles, is associated with polymorphisms in immune-related genes and with decreased number of CD4+ CD25+ T regulatory cells (Treg ... [more ▼]

Alopecia areata (AA), an autoimmune disease affecting anagen stage hair follicles, is associated with polymorphisms in immune-related genes and with decreased number of CD4+ CD25+ T regulatory cells (Treg). Treg function is modulated by the forkhead box protein 3 (FOXP3) transcription factor and by inducible costimulator (ICOS), through interaction with the relative ligand, ICOSLG, whose genes are polymorphic. The aim of the study was to investigate whether specific single nucleotide polymorphisms (SNPs) of the rs2294020 FOXP3 and/or rs378299 ICOSLG genes may be associated with AA. A case-control study was performed in 120 AA patients and 84 controls. SNPs were analyzed by gene sequencing. FOXP3 and ICOSLG gene expressions were analyzed by real-time PCR. Increased frequencies of the genotype carrying the FOXP3 rs2294020-3675(A) [P = 0.002, OR (95 % CI): 2.55 (1.2-2.7)] or the ICOSLG rs378299-509(C) [P = 0.01, OR (95 % CI): 2.21 (1.1-2.6)] allelic variants were observed in AA patients than in controls. The genotype carrying the combination of the FOXP3 rs2294020-3675(A) and ICOSLG rs378299-509(C) allelic variants with the HLA DQB1*03 allele was more frequently present in AA patients than in controls (P = 0.04). The presence of the FOXP3 rs2294020-3675(A) or the ICOSLG rs378299-509(C) allelic variant was associated with reduced relative gene expression in AA patients. These data suggest that rs2294020 SNP of FOXP3 gene and rs378299 SNP of ICOSLG gene are associated with AA and with a reduced expression of the FOXP3 and ICOSLG genes in alopecia patients. [less ▲]

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See detailWhat is the potential increase of the heart graft pool by cardiac donation after circulatory death?
NOTERDAEME, Timothée; NELLESSEN, Eric ULg; HANS, Marie-France ULg et al

in Transplantation (2012, November), 94

Background: Heart transplantation remains to date the only definite treatment option for end-stage heart diseases. Currently only heart procured from brain death (DBD) donors are used. Combined with an ... [more ▼]

Background: Heart transplantation remains to date the only definite treatment option for end-stage heart diseases. Currently only heart procured from brain death (DBD) donors are used. Combined with an increasing demand, the constant heart graft shortage leads to an increase of deaths on cardiac transplantation waiting lists. The use of hearts procured after donation after circulatory death (DCD) could help to partly decrease the heart graft shortage. The aim of this study was to evaluate the potential increase of heart graft pool by development of DCD heart transplantation. Methods: The authors retrospectively reviewed their local donor database for the period 2006-2011, and screened the complete controlled DCD donor population for potential heart donors, using the same criteria as for DBD heart transplantation. The acceptable warm ischemic time (WIT) was limited to 30min from life support withdrawal to aortic cannulation. Results: During the analyzed timespan, 177 DBD and 70 DCD were effectively performed. From the 177 DBD, a total of 70 (39.5%) hearts were procured and transplanted locally or in another center. Out of the 70 DCD, 8 (11%) donors fulfilled the criteria for heart graft procurement and had a WIT of less than 30 minutes. During the same period, 82 patients were newly listed for heart transplantation, of which 53 were transplanted, 20 died or were unlisted, and 9 were still awaiting transplantation. Conclusions: Based on our database and a WIT of less than 30min, it could be estimated that 11% of the DCD might be heart graft donors, representing a 11% increase in heart graft procurement, as well as potential reduction of the deaths on the waiting list by 40%. [less ▲]

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See detailEvaluation de l’impact de la filiere de production porcine sur les caractéristiques des jambons de l’IGP (Indication Géographique Protégée) Jambon d’Ardenne
Dzaomuho-Lenieregue, Phidias ULg; Eloundou Mballa, Pierre ULg; Sindic, Marianne ULg et al

in Viandes et Produits Carnés (2012, November), Hors-Série

The aim of this study is to evaluate the influence of pork production sector on technological behavior of raw material, properties of the ham final product and consumer preferences. An experimental ... [more ▼]

The aim of this study is to evaluate the influence of pork production sector on technological behavior of raw material, properties of the ham final product and consumer preferences. An experimental manufacturing assay of Ardenne Ham has been conducted for this purpose. Results show few incidence of pork production conditions on technological properties and chemical or sensory characteristics of hams. The preference tests, carried out with a sensory panel using several criteria, showed that consumers were able to distinguish two groups of hams, according to their fat content. They have a preference for lower-fat ham from one of the studied sectors. Method of multicriteria decision shows no overall preference for one of the submitted ham. [less ▲]

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See detailCouplage des modèles numériques SWAT et FeFlow pour l'étude des flux de nitrate à l'échelle d'un bassin versant agricole posé sur un aquifère sableux. Calibrage, validation et test de scénarios pour l'évaluation de pratiques agricoles plus durables en terme de gestion de l'azote
Vandenberghe, Christophe ULg; Deneufbourg, Mathieu ULg; Gaule, David et al

in Bulletin du groupe francophone Humidimétrie et Transferts en milieux poreux (2012, November), 58

Quatre prises d’eau exploitées à Arquennes (Belgique) sont contaminées par le nitrate. Leurs bassins d’alimentation sont situés en zone agricole caractérisée par un sol limoneux sur un aquifère sableux ... [more ▼]

Quatre prises d’eau exploitées à Arquennes (Belgique) sont contaminées par le nitrate. Leurs bassins d’alimentation sont situés en zone agricole caractérisée par un sol limoneux sur un aquifère sableux. Depuis 2004, ces bassins servent de site pilote dans le cadre de l’évaluation du Programme de Gestion Durable de l’Azote (PGDA), transposition de la Directive « Nitrates » en droit wallon. Les modèles numériques SWAT et FEFLOW ont permis de simuler les flux d’eau et de nitrate depuis la surface jusqu’aux galeries. Après calibrage et validation des modèles (sur la base d’une caractérisation du sol et du sous-sol et de traçages en milieux saturé et non saturé), plusieurs scénarios de pratiques agricoles ont été simulés afin de prédire l’évolution qualitative des eaux. L’expérience d’Arquennes a démontré que le recours au couplage SWAT / FEFLOW permet de proposer des solutions environnementales réalistes pour atteindre les objectifs fixés par la DCE. [less ▲]

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See detailDoes processing speed protect from age-related decline in cognitive control?
Manard, Marine ULg; Carabin, Delphine; Collette, Fabienne ULg

in Frontiers in Human Neuroscience (2012, October 27)

Age-related difficulties have been reported on proactive control whereas reactive control seems to remain intact (Braver, Gray, & Burgess, 2007; Braver, 2012). This study investigated the potential ... [more ▼]

Age-related difficulties have been reported on proactive control whereas reactive control seems to remain intact (Braver, Gray, & Burgess, 2007; Braver, 2012). This study investigated the potential influence of speed of processing abilities on the age-related decline in proactive control. We used a working memory recognition paradigm involving proactive or reactive cognitive control by manipulating the interference level across items. 80 young adults (18-29 years old) and 80 healthy older adults (60-89 years old) were included. The main results revealed significant effects of age on sensitivity to interference. As expected, reactive control performance remained intact with aging (similar interference effect in the two groups). In contrast, we observed a larger interference effect in the proactive condition in aging. Finally, when the groups are matched according to their processing speed (assessed by the Code task of the WAIS III, with both younger and older adults having a score comprised between 60 and 93), the effect of age on sensitivity to interference disappeared. In other words, when younger and older adults had similar speed of processing abilities, no age-related proactive control decline was observed. In conclusion, beyond the fact that this study confirms the selective age-related decline in proactive control, it also indicates that speed of processing, a measure considered as reflecting the integrity of cognitive functioning during aging (Salthouse, 1996), influences the efficiency of proactive control in that population. [less ▲]

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See detailMammoths used as food and building resources by Neanderthals: Zooarchaeological study applied to layer 4, Molodova I (Ukraine)
Demay, Laëtitia ULg; Péan, Stéphane; Patou-Mathis, Marylène

in Quaternary International (2012, October 25), 276-277(25 October 2012), 212-226

Considering Neanderthal subsistence, the use of mammoth resources has been particularly discussed. Apart from procurement for food, the use of mammoth bones as building material has been proposed. The ... [more ▼]

Considering Neanderthal subsistence, the use of mammoth resources has been particularly discussed. Apart from procurement for food, the use of mammoth bones as building material has been proposed. The hypothesis was based on the discovery made in Molodova I, Ukraine (Dniester valley). In this large multistratified open-air site, a rich Mousterian layer was excavated. Dated to the Inter-Pleniglacial (MIS 3), it has yielded 40 000 lithic remains associated with ca. 3000 mammal bones, mostly from mammoth. Several areas have been excavated: a pit filled with bones, different areas of activities (butchering, tool production), twenty-five hearths and a circular accumulation made of mammoth bones, described as a dwelling structure set up by Neanderthals. Attested dwelling structures made of mammoth bones are known in Upper Paleolithic sites, from Ukraine and Russia, attributed to the Epigravettian tradition. This paper presents a zooarchaeological study of large mammal remains from Molodova I layer 4, to understand the modalities of acquisition and utilization of mammoth resources for food and technical purposes, especially to test the hypothesis of using bones as building elements. The number of mammoths is estimated to at least fifteen individuals of all age classes and both sexes, which died during several episodes, near or on the site. The taphonomic modifications due to weathering, water percolation and plant roots indicate the location of bones in holes, such as the pit and the basement of the circular accumulation. Secondary actions of carnivores, especially of hyaenid type, are rare on bones, showing that the assemblage was not accumulated by these predators. The anatomical preservation, the age and sex features and the taphonomic data indicate several modalities of mammoth acquisition by hunting, scavenging and collecting. Based on anthropogenic marks, mammoth meat has been eaten. The presence of series of striations and ochre on mammoth bones are associated with a technical or symbolic use. Furthermore, mammoth bones have been deliberately selected (long and flat bones, tusks, connected vertebrae) and circularly arranged. This mammoth bone structure could be described as the basement of a wooden cover or as a wind-screen. The inner presence of fifteen hearths, lithic artifacts and waste of mammal butchery and cooking is characteristic of a domestic area, which was probably the centre of a residential camp recurrently settled. It appears that Neanderthals were the oldest known humans who used mammoth bones to build a dwelling structure. [less ▲]

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See detailDeciphering Distance-Induced Deceleration of Gait and Ataxia in People with Multiple Sclerosis
PHAN BA, Remy ULg; Pierard, Sébastien ULg; Moonen, Gustave ULg et al

in Multiple Sclerosis Journal (2012, October 12), 18(S4), 338

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See detailDetection and Quantification of Efficiency and Quality of Gait Impairment in Multiple Sclerosis through Foot Path Analysis
PHAN BA, Remy ULg; Pierard, Sébastien ULg; MOONEN, Gustave ULg et al

in Multiple Sclerosis Journal (2012, October 11), 18(S4), 110

Introduction: Walking speed is generally considered as the best outcome measure in trials for people with multiple sclerosis (pMS). We recently designed a device based on range laser scanner capable to ... [more ▼]

Introduction: Walking speed is generally considered as the best outcome measure in trials for people with multiple sclerosis (pMS). We recently designed a device based on range laser scanner capable to track feet paths of walking subjects. Our purpose was to explore gait descriptors of pMS and compare them with those of healthy volunteers (HV). Methods: Fourty-four pMS (considered as moderatly or highly disabled according to a cut-off EDSS value of 3.0) and 28 HV performed 4 walking tasks along 2 trajectories in 3 walking modes. Twenty-six gait descriptors crudely dichotomized in « efficiency» and « quality » of gait were compared in the 2 populations using unpaired t-tests. Results: (i) apart from an older age in pMS, the two populations were comparable, (ii) efficiency of gait descriptors including walking speed distinguished HV from pMS, and pMS with moderate from pMS with high disability, (iii) quality of gait descriptors were also significantly altered in pMS, including in walking tasks where their walking speed was comparable to that of HV. Conclusions: RLS technology can distinguish pMS from HV according to (i) more efficiency of gait descriptors than the sole walking speed and (ii) quality of gait descriptors, including in subjects with a « normal » walking speed. [less ▲]

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See detailDetermination of Romanian alfalfa crude protein and crude fiber contents as well as in vitro organic matter digestibility by NIR spectrometry
Dale, Laura ULg; Thewis, André ULg; Rotar, Ioan et al

in Scientific Papers. Series D, Animal Science (2012, October 04)

Alfalfa (Medicago sativa L.) is a high quality forage which has been used worldwide. The superiority of alfalfa lies in its high yield, high protein content and high digestibility. The aim of this study ... [more ▼]

Alfalfa (Medicago sativa L.) is a high quality forage which has been used worldwide. The superiority of alfalfa lies in its high yield, high protein content and high digestibility. The aim of this study was to develop a simple, fast and non-destructive method, named Near Infrared Spectroscopy (NIRS) to determinate alfalfa quality. To realize this study, alfalfa samples were obtained from Mănăştur Experimental Station – Farm Cojocna in 2008–2009, in one experiment carried out using randomization blocks design with two experimental factors (mineral fertilization and period of harvest). Alfalfa quality was first determinated on 48 samples by classical analyses: crude protein CP (AOAC, 1990), crude fiber CF (Fiber Cap, FOSS, DK) and in vitro organic matter digestibility OMDrt (DeBoever, 1986). Then the samples were scanned by NIRS. Calibration models were performed by PerkinElmer Spectrum Quant + 4.21 program (USA) on the 48 samples determinated by classical analysis. The results showed fully confirmed by acceptable coefficients of determination and standard error of cross-validation (R2=0.96 for CP, 0.94 for CF, 0.98 for OMDrt and SECV=0.77 for CP, 1.35 for CF, 1.13 for OMDrt). Successful results for prediction of other 176 alfalfa samples were then obtained using these calibration models: SEP=0.869 for CP, 1.058 for CF, 1.058 for OMDrt). The highest CP and OMDrt values of alfalfa were obtained in bud stage (22.0% and 66.0% respectively). While for CF, the highest content was registered in the seed formation stage (46.0%). The NIRS technique offers us the possibility to determinate rapidly and easily Romanian alfalfa important parameters, but the system could also be used for the determination of other constituents. [less ▲]

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See detailINTERRATER AGREEMENT OF CLINICAL TESTS/SIGNS USED TO IDENTIFY PATIENTS WITH LUMBAR FUNCTIONAL INSTABILITY
Demoulin, Christophe ULg; Emmanuel, P.; DISTREE, Vincent ULg et al

in Journal of Orthopaedic & Sports Physical Therapy (2012, October), 42(10), 57

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See detailCumulative Time in Band (cTIB): Glycemic Level, Variability and Patient Outcome All in 1
Penning, Sophie ULg; Signal, Matthew; PREISER, Jean-Charles ULg et al

in Intensive Care Medicine (2012, October), 38 (Suppl 1)

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See detailAssociation between chondrocytes hypertrophy and angiogenesis of cartilage in osteoarthritis
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

in Arthritis and Rheumatism (2012, October), 64(10 (Suppl)), 760

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See detailAccompagnement des aidants des patients Alzheimer comme approche non-pharmacologique essentielle!
Adam, Stéphane ULg; Bottard, Aude ULg; Crespin, Maurane ULg et al

in Revue Francophone de Gériatrie et de Gérontologie (2012, October), XIX(188), 326-327

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See detailArbitrary Lagrangian Eulerian Modelling of Tension Levelling
Boman, Romain ULg; Parrico, Anthony; Legrand, Nicolas et al

in Matériaux et Techniques (2012, October), 100(Hors série 2012), 40-42

This paper presents a two-dimensional model of tension levelling using the Arbitrary Lagrangian Eulerian (ALE) approach. During the simulation, the ALE mesh remains globally fixed along the rolling ... [more ▼]

This paper presents a two-dimensional model of tension levelling using the Arbitrary Lagrangian Eulerian (ALE) approach. During the simulation, the ALE mesh remains globally fixed along the rolling direction. Therefore, the required number of finite elements is much smaller than in the Lagrangian case and smaller CPU times are obtained for the same accuracy on the results. The ALE model is first validated against a classical equivalent Lagrangian model. Then, both sets of numerical results are compared to experimental measurements from the pilot mill of ArcelorMittal Maizières R&D. [less ▲]

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See detailPulsational Mode Identification Based on Chromatic Amplitude Behaviour: Recent Results for Rapidly Oscillating Subdwarf B Stars
Randall, S.K.; Fontaine, G.; Brassard, P. et al

in Astronomical Society of the Pacific Conference Series (2012, October), 462

We present recent results from mode identification based on the amplitude-wavelength behaviour for three rapidly pulsating subdwarf B stars: HS 2201+2610, EC 11583–2708 and EC 20338–1925.

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See detailSacralisation et légitimation. Les hors-textes de la revue "L'Éprouvette" : fragments d’une Histoire discriminante
Dejasse, Erwin ULg

in Comicalités : Études de Culture Graphique (2012, September 27)

Between 2006 and 2007, L’Association have published the three issues of L’Éprouvette. These are, among other, illustrated by thirty-four images that are hugely enlarged fragments of comic’s panels. By ... [more ▼]

Between 2006 and 2007, L’Association have published the three issues of L’Éprouvette. These are, among other, illustrated by thirty-four images that are hugely enlarged fragments of comic’s panels. By comparing this with similar realizations (the exhibition Bande dessinée et Figuration narrative, the column « Cases mémorables » of the journal Les Cahiers de la bande dessinée), this paper asks about what it means reproducing comics’ fragments. It also tries to analyze the role played by these images within the journal and the links with the rest of the content. Endlessly, still by putting it in prospect with the realizations here above mentioned, it tries to see in what extent these images reflect a certain view about the history of the comic. [less ▲]

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See detailChemometric tools for NIRS and NIR hyperspectral imaging
Dale, Laura ULg; Thewis, André ULg; Rotar, Ioan et al

in Bulletin of USAVM Cluj Napoca, Agriculture (2012, September 27), 69(1), 70-76

Nowadays in agriculture, new analytical tools based on spectroscopic technologies are developed. Near Infrared Spectroscopy (NIRS) is a well known technology in the agricultural sector allowing the ... [more ▼]

Nowadays in agriculture, new analytical tools based on spectroscopic technologies are developed. Near Infrared Spectroscopy (NIRS) is a well known technology in the agricultural sector allowing the acquisition of chemical information from the samples with a large number of advantages, such as: easy to use tool, fast and simultaneous analysis of several components, non-polluting, non-invasive and non destructive technology, and possibility of online or field implementation. Recently, NIRS system was combined with imaging technologies creating the Near Infrared Hyperspectral Imaging system (NIR-HSI). This technology provides simultaneously spectral and spatial information from an object. The main differences between NIR-HSI and NIRS is that many spectra can be recorded simultaneously from a large area of an object with the former while with NIRS only one spectrum was recorded for analysis on a small area. In this work, both technologies are presented with special focus on the main spectrum and images analysis methods. Several qualitative and quantitative applications of NIRS and NIR-HSI in agricultural products are listed. Developments of NIRS and NIR-HSI will enhance progress in the field of agriculture by providing high quality and safe agricultural products, better plant and grain selection techniques or compound feed industry’s productivity among others. [less ▲]

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See detailImpact of extracorporeal shock wave therapy in the treatment of chronic lateral epicondylitis
Deroanne, Adrien; Deroanne, Didier; Florkin, Marc et al

in Regional Anesthesia & Pain Medicine (2012, September), 37(5 - Suppl 1), 263

Background and aim: radial shock wave therapy (RSWT) is a relatively new way to treat chronic tendinopathies, such as lateral epicondylitis. However, very few studies have been realized on this subject ... [more ▼]

Background and aim: radial shock wave therapy (RSWT) is a relatively new way to treat chronic tendinopathies, such as lateral epicondylitis. However, very few studies have been realized on this subject, and the results are very divergent. We aimed to observe the impact of this technique on chronic lateral elbow pain. Method: fifteen subjects who had a lateral epicondylitis for at least 3 months were included in the study. Two groups were formed: experimental (10 subjects) who received 6 sessions of physiotherapy and RSWT, and the control group (5 subjects) who received exclusively physiotherapy. Physiotherapy sessions were composed of massage, stretching, diacutaneous fibrolysis, and a muscular eccentric program of the wrist extensor muscles. We evaluated the subjects before the first session, and after 6 weeks of treatment with a pain visual analog scale (VAS), the painless wrist flexion amplitude, ant the “Patient-Rated Tennis Elbow Evaluation” (PRTEE) questionnaire. Results: the difference between initial and final evaluations was significant (regarding to the wilcoxon test) for all of the parameters studied (p=0,028 for the VAS, p=0,005 for the wrist flexion amplitude, and p=0,005 for the PRTEE) in the experimental group. It wasn’t significant in the control group (VAS p=0,144128, wrist flexion amplitude p=0,079617, and PRTEE p=0,067890). The comparison between the two groups was not significant, neither in the beginning, nor in the end of the treatment (regarding to the Umann and Whitney test) Conclusions: RSWT associated to physiotherapy is a more effective treatment for lateral epicondylitis than physiotherapy alone. [less ▲]

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