References of "Scientific journals"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 201 to 300 of 44449     1 2 3 4 5 6 7 8     Dark atoms and the positron-annihilation-line excess in the galactic bulgeCudell, Jean-René ; Khlopov, Maxim; Wallemacq, Quentin in Advances in High Energy Physics (in press), 2014It was recently proposed that stable particles of charge -2, O^{--}, can exist and constitute dark matter after they bind with primordial helium in O-helium (OHe) atoms. We study here in details the ... [more ▼]It was recently proposed that stable particles of charge -2, O^{--}, can exist and constitute dark matter after they bind with primordial helium in O-helium (OHe) atoms. We study here in details the possibility that this model provides an explanation for the excess of gamma radiation in the positron-annihilation line from the galactic bulge observed by INTEGRAL. This explanation assumes that OHe, excited to a 2s state through collisions in the central part of the Galaxy, de-excites to its ground state via an E0 transition, emitting an electron-positron pair. The cross section for OHe collisions with excitation to 2s level is calculated and it is shown that the rate of such excitations in the galactic bulge strongly depends not only on the mass of O-helium, which is determined by the mass of O^{--}, but also on the density and velocity distribution of dark matter. Given the astrophysical uncertainties on these distributions, this mechanism constrains the O^{--} mass to lie in two possible regions. One of these is reachable in the experimental searches for stable multicharged particles at the LHC. [less ▲]Detailed reference viewed: 12 (0 ULg) A 3400 year lacustrine paleoseismic record from the North Anatolian Fault, Turkey: Implications for bimodal recurrence behaviorAvsar, Ulas; Hubert, Aurelia ; De Batist, Marc et alin Geophysical Research Letters (in press)Detailed reference viewed: 21 (9 ULg) Control of electronic dynamics visualized by angularly resolved photoelectron spectra: An IR pump-XUV attopulse train probe dynamical simulationMignolet, Benoît ; Levine, R. D.; Remacle, Françoise in Physical Review A (rapid comm.) (in press)Detailed reference viewed: 11 (1 ULg) Computational homogenization of cellular materialsNguyen, Van Dung ; Noels, Ludovic in International Journal of Solids and Structures (in press)In this work we propose to study the behavior of cellular materials using a second–order multi–scale computational homogenization approach. During the macroscopic loading, micro-buckling of thin ... [more ▼]In this work we propose to study the behavior of cellular materials using a second–order multi–scale computational homogenization approach. During the macroscopic loading, micro-buckling of thin components, such as cell walls or cell struts, can occur. Even if the behavior of the materials of which the micro–structure is made remains elliptic, the homogenized behavior can lose its ellipticity. In that case, a localization band is formed and propagates at the macro–scale. When the localization occurs, the assumption of local action in the standard approach, for which the stress state on a material point depends only on the strain state at that point, is no–longer suitable, which motivates the use of the second-order multi–scale computational homogenization scheme. At the macro–scale of this scheme, the discontinuous Galerkin method is chosen to solve the Mindlin strain gradient continuum. At the microscopic scale, the classical finite element resolutions of representative volume elements are considered. Since the meshes generated from cellular materials exhibit voids on the boundaries and are not conforming in general, the periodic boundary conditions are reformulated and are enforced by a polynomial interpolation method. With the presence of instability phenomena at both scales, the arc–length path following technique is adopted to solve both macroscopic and microscopic problems. [less ▲]Detailed reference viewed: 76 (52 ULg) A new criterion to assess distributional homogeneity in hyperspectral images of solid pharmaceutical dosage formsSacre, Pierre-Yves ; Lebrun, Pierre ; Chavez, Pierre-François et alin Analytica Chimica Acta (in press)During galenic formulation development, homogeneity of distribution is a critical parameter to check since it may influence activity and safety of the drug. Raman hyperspectral imaging is a technique of ... [more ▼]During galenic formulation development, homogeneity of distribution is a critical parameter to check since it may influence activity and safety of the drug. Raman hyperspectral imaging is a technique of choice for assessing the distributional homogeneity of compounds of interest. Indeed, the combination of both spectroscopic and spatial information provides a detailed knowledge of chemical composition and component distribution. Actually, most authors assess homogeneity using parameters of the histogram of intensities (e.g. mean, skewness and kurtosis). However, this approach does not take into account spatial information and loses the main advantage of imaging. To overcome this limitation, we propose a new criterion: Distributional Homogeneity Index (DHI). DHI has been tested on simulated maps and formulation development samples. The distribution maps of the samples were obtained without validated calibration model since different formulations were under investigation. The results obtained showed a linear relationship between content uniformity values and DHI values of distribution maps. Therefore, DHI methodology appears to be a suitable tool for the analysis of homogeneity of distribution maps even without calibration during formulation development. [less ▲]Detailed reference viewed: 8 (3 ULg) Type I error inflation in DIF identification with Mantel-Haenszel: an explanation and a solutionMagis, David ; De Boeck, Paulin Educational & Psychological Measurement (in press)It is known that sum score-based methods for the identification of differential item functioning (DIF), such as the Mantel-Haenszel (MH) approach, can be affected by Type I error inflation in the absence ... [more ▼]It is known that sum score-based methods for the identification of differential item functioning (DIF), such as the Mantel-Haenszel (MH) approach, can be affected by Type I error inflation in the absence of any DIF effect. This may happen when the items differ in discrimination and when there is item impact. On the other hand, outlier DIF methods have been developed that are robust against this Type I error inflation, while they are still based on the MH DIF statistic. The present paper gives an explanation for why the common MH method is indeed vulnerable to the inflation effect while the outlier DIF versions are not. In a simulation study we were able to produce the Type I error inflation by inducing item impact and item differences in discrimination. At the same time and in parallel with the Type I error inflation the dispersion of the DIF statistic across items was increased. As expected, the outlier DIF methods did not seem sensitive to impact and differences in item discrimination. [less ▲]Detailed reference viewed: 12 (1 ULg) BeAMS: a Beacon based Angle Measurement Sensor for mobile robot positioningPierlot, Vincent ; Van Droogenbroeck, Marc in IEEE Transactions on Robotics (in press)Positioning is a fundamental issue in mobile robot applications, and it can be achieved in multiple ways. Among these methods, triangulation based on angle measurements is widely used, robust, accurate ... [more ▼]Positioning is a fundamental issue in mobile robot applications, and it can be achieved in multiple ways. Among these methods, triangulation based on angle measurements is widely used, robust, accurate, and flexible. This paper presents BeAMS, a new active beacon-based angle measurement system used for mobile robot positioning. BeAMS introduces several major innovations. One innovation is the use of a unique unsynchronized channel with On-Off Keying modulated infrared signals to measure angles and to identify the beacons. We also introduce a new mechanism to measure angles: our system detects a beacon when it enters and leaves an angular window. We show that the estimator resulting from the center of this angular window provides an unbiased estimate of the beacon angle. A theoretical framework for a thorough performance analysis of BeAMS is provided. We establish the upper bound of the variance and validate this bound through experiments and simulations; the overall error measure of BeAMS is lower than 0.24 deg for an acquisition rate of 10 Hz. In conclusion, BeAMS is a low power, flexible, and robust solution for angle measurement, and a reliable component for robot positioning. [less ▲]Detailed reference viewed: 45 (10 ULg) Aberrations chromatiques : de l’émulsion au pixelThonon, Jonathan in Cahiers Louis Lumière (in press)Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la ... [more ▼]Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la profondeur picturale et de son articulation à la surface : « La nature n'est pas en surface ; elle est en profondeur. Les couleurs sont l'expression, à cette surface, de cette profondeur. Elles montent des racines du monde ». Cet « organisme de couleurs » que constitue le monde est transcrit dans la peinture de Cézanne par une dynamique symbiotique de la couleur et du dessin, de la ligne et du pan. La couleur restitue, par sa masse, son surgissement, son homogénéité, presque sa viscosité, la véritable chaire perceptive du monde ; une vision qui tient à distance la perspective géométrique, photographique, cinématographique fondée sur la transparence et qui repose, comme le signale Merleau-Ponty, sur la « réversibilité des dimensions » (surface-profondeur) et l’entrelacement des choses. C’est cette épaisseur du visible rendu par la couleur que l’économie de l’image numérique nous permet de redécouvrir, moins dans le registre de la « tactilité » de l’image et la picturalité du pixel, que par l’intégration, entre le support et l’image (parfois indiscernables dans le régime optique), d’un « corps » algorithmique qui règle l’actualisation du visible. Certains défauts techniques du dispositif numérique, aujourd’hui élevés au rang de pratique artistique, permettent de révéler cette matrice qui utilise alors la couleur et la coulure comme mode de visibilité. C’est le cas du Datamoshing, technique de composition numérique qui revisite tout en la radicalisant la pratique de l’incrustation vidéo. Basée sur la perturbation volontaire d’éléments de la matrice, cette technique transforme les couleurs en une forme malléable et fluide révélant ainsi leur double nature spatiale : elles sont à la fois dans l’espace de l’image et l’espace de l’image lui-même. Ces expériences de défigurations d’images s’inscrivent dans le registre des « aberrations chromatiques » dont nous proposons ici une rapide généalogie avant d’interroger la couleur digitale dans ses spécificités. [less ▲]Detailed reference viewed: 13 (2 ULg) Relationships between mind-wandering and attentional control abilities in young adults and adolescentsStawarczyk, David ; Majerus, Steve ; Catale, Corinne et alin Acta Psychologica (in press)Recent findings suggest that mind-wandering—the occurrence of thoughts that are both stimulus-independent and task-unrelated—corresponds to temporary failures in attentional control processes involved in ... [more ▼]Recent findings suggest that mind-wandering—the occurrence of thoughts that are both stimulus-independent and task-unrelated—corresponds to temporary failures in attentional control processes involved in maintaining constant task-focused attention. Studies supporting this proposal are, however, limited by a possible confound between mind-wandering episodes and other kinds of conscious experiences, such as external distractions (i.e., interoceptive sensations and exteroceptive perceptions). In the present study, we addressed this issue by examining, in adolescents and young adults, the relations between tasks measuring attentional control abilities and a measure of mind-wandering that is distinct from external distractions. We observed (1) that adolescents experienced more frequent external distractions, but not more mind-wandering, than young adults during the Sustained Attention to Response Task (SART) and (2) that, in young adults, the influence of external distractions on SART performance was fully accounted for by attentional control abilities, whereas mind-wandering was associated with decreases in SART performance above and beyond what was explained by attentional control abilities. These results show that mind-wandering cannot be entirely reduced to failures in the ability to maintain one’s attention focused on task, and suggest that external distractions rather than mind-wandering are due to attentional control failures. [less ▲]Detailed reference viewed: 15 (2 ULg) Pour une bibliographie raisonnée sur la restauration et la conservation des papyrusde Haro Sanchez, Magali ; Ricciardetto, Antonio in Studi di Egittologia e di Papirologia (in press)Detailed reference viewed: 10 (2 ULg) Cloistered BaryogenesisAristizabal Sierra, Diego ; Fong, Chee Sheng; Nardi, Enrico et alin Journal of Cosmology and Astroparticle Physics [= JCAP] (in press)The cosmological matter-antimatter asymmetry can arise from the baryon number conserving CP asymmetry in two body decays of heavy particles, when the two final states carry equal and opposite baryon ... [more ▼]The cosmological matter-antimatter asymmetry can arise from the baryon number conserving CP asymmetry in two body decays of heavy particles, when the two final states carry equal and opposite baryon number, and one couples directly or indirectly to electroweak sphalerons so that its baryon asymmetry gets partly reprocessed into a lepton asymmetry, while the other remains chemically decoupled from the thermal bath with its baryon content frozen. After sphaleron switchoff the decay of the decoupled particles inject in the thermal plasma an unbalanced baryon asymmetry, giving rise to baryogenesis. We highlight the features of this mechanism in a type-I seesaw model extended by adding a new colored scalar coupled to the heavy Majorana neutrinos. If the colored scalar has an O(TeV) mass, it would leave at the LHC a characteristic signature throughout all layers of the detectors. [less ▲]Detailed reference viewed: 5 (1 ULg) -(1,2,3,4-tetrahydroisoquinolinium): a chiral scaffold for developing high affinity ligands for SK channelsLiégeois, Jean-François ; Wouters, Johan; Seutin, Vincent et alin ChemMedChem (in press)N-Methyl-bis-(1,2,3,4-tetrahydroisoquinolinium) analogues derived from AG525 (1,1'-(propane-1,3-diyl)-bis-(6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline)) stereoisomers and tetrandrine, a rigid ... [more ▼]N-Methyl-bis-(1,2,3,4-tetrahydroisoquinolinium) analogues derived from AG525 (1,1'-(propane-1,3-diyl)-bis-(6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline)) stereoisomers and tetrandrine, a rigid bis-(1,2,3,4-tetrahydroisoquinoline) analogue with an S,S configuration, were synthesized and tested for their affinity for small-conductance calcium-activated potassium channel (SK/KCa2) subtypes using radioligand binding assays. A significant increase in affinity was observed for the quaternized analogues over the parent 1,2,3,4-tetrahydroisoquinoline compounds. Interestingly, the impact of stereochemistry was not the same in the two groups of compounds. For quaternized analogues, affinities of S,S and R,R isomers for SK2 and SK3 channels were similar and in both cases higher than that of the meso derivative. Among the bis-tetrahydroisoquinoline compounds, the S,S isomers exhibited high affinity, while the R,R and meso isomers had similarly lower affinities. Furthermore, the SK2/SK3 selectivity ratio was slightly increased for quaternized analogues. Bis-(1,2,3,4-tetrahydroisoquinolinium) represents a new scaffold for the development of high-affinity ligands for SK channel subtypes [less ▲]Detailed reference viewed: 10 (0 ULg) Evaluation of the quantitative performances of Supercritical Fluid Chromatography : from method development to validationDispas, Amandine ; Lebrun, Pierre ; Ziemons, Eric et alin Journal of Chromatography. A (in press)Recently, the number of papers about SFC increased drastically but scientists did not truly focus their work on quantitative performances of this technique. In order to prove the potential of UHPSFC, the ... [more ▼]Recently, the number of papers about SFC increased drastically but scientists did not truly focus their work on quantitative performances of this technique. In order to prove the potential of UHPSFC, the present work discussed about the different steps of the analytical life cycle of a method: from development to validation and application. Moreover, the UHPSFC quantitative performances were evaluated in comparison with UHPLC, which is the main technique used for quality control in the pharmaceutical industry and then could be considered as a reference. The methods were developed using Design Space strategy, leading to the optimization of robust method. In this context, when the Design Space optimization shows guarantee of quality, no more robustness study is required prior to the validation. Then, the methods were geometrically transferred in order to reduce the analysis time. The UHPSFC and UHPLC methods were validated based on the total error approach using accuracy profile. Even if UHPLC showed better precision and sensitivity, UHPSFC method is able to give accurate results in a dosing range larger than the 80–120% range required by the European Medicines Agency. Consequently, UHPSFC results are valid and could be used for the control of active substance in a finished pharmaceutical product. Finally, UHPSFC validated method was used to analyse real samples and gave similar results than the reference method (UHPLC). [less ▲]Detailed reference viewed: 12 (5 ULg) The Third/Second Generation PTH Assay Ratio as a Marker for Parathyroid Carcinoma: Evaluation Using an Automated PlatformCAVALIER, Etienne ; BETEA, Daniela ; SCHLECK, Marie-Louise et alin Journal of Clinical Endocrinology and Metabolism (in press)Background: Parathyroid carcinoma (PCa) is rare and often difficult to differentiate initially from benign disease. Because PCa oversecretes amino PTH that is detected by third-generation but not by ... [more ▼]Background: Parathyroid carcinoma (PCa) is rare and often difficult to differentiate initially from benign disease. Because PCa oversecretes amino PTH that is detected by third-generation but not by second-generation PTH assays, the normal generation PTH ( 1) is inverted in PCa (ie, 1). Objective: The objective of the investigation was to study the utility and advantages of automated generation PTH ratio measurements using the Liaison XL platform over existing manual techniques. Setting: The study was conducted at a tertiary-referral academic center. Design: This was a retrospective laboratory study. Subjects: Eleven patients with advanced PCa (mean age 56.0 y). The controls were patients with 1°-hyperparathyroidism (n 144;meanage 53.8 y), renal transplantation (n 41;meanage 50.6 y), hemodialysis (n 80; mean age 65.2 y), and healthy elderly subjects (n 40; mean age 72.6 y). Results: The median (interquartile range) generation PTH ratio was 1.16 (1.10 –1.38) in the PCa group, which was significantly higher than the control groups: 0.74 (hemodialysis, 0.71–0.75), 0.77 (renal transplant, 0.73–0.79), 0.80 (healthy elderly, 0.74–0.83), and 0.76 (1°-hyperparathyroidism, 0.74–0.78). An inverted -generation PTH ratio ( 1) was seen in 9 of 11 PCa patients (81.8%) and in 7 of 305 controls (2.3%), 3 of 80 hemodialysis (3.8%), and 4 of 144 1°-hyperparathyroidism patients (2.8%). Of four PCa patients who had a normal PTH ratio with the manual method, two had an inverted -generation PTH ratio with the automated method. Conclusions: Study of the -generation PTH ratio in large patient populations should be feasible using a mainstream automated platform like the Liaison XL. The current study confirms the utility of the inverted -generation PTH ratio as a marker of PCa (sensitivity: 81.8%; specificity: 97.3%). [less ▲]Detailed reference viewed: 29 (6 ULg) Science et Dynastie en Belgique : les "conseillers scientifiques" du Roi sous Albert Ier et Léopold IIIPirot, Pascal in Mosaïque, revue de jeunes chercheurs en SHS – Lille Nord de France – Belgique (in press)Detailed reference viewed: 22 (7 ULg) Elaboration of drug nanocarriers based on a glucosamine labeled amphiphilic polymerBoyère, Cédric; Duhem, N; Debuigne, Antoine et alin Polymer Chemistry (in press)A new functional polymer micelle with high loading efficiency of a poorly soluble drug was made of biocompatible and/or biosourced compounds, i.e. cholesterol-poly(ethylene glycol)-glucosamine (Chol-PEG ... [more ▼]A new functional polymer micelle with high loading efficiency of a poorly soluble drug was made of biocompatible and/or biosourced compounds, i.e. cholesterol-poly(ethylene glycol)-glucosamine (Chol-PEG-GlcNH2). A synthesis strategy combining enzymatic and metal-free click chemistry was developed in order to meet the increasingly stringent requirements of biomedical applications. After the self-assembly of the Chol-PEG-GlcNH2 amphiphilic polymer in water, the presence of glucosamine at the micelle surface confers an active targeting moiety to the nanocarriers whereas protonation of the peripheral primary amine delay their aggregation. The complete characterization of this novel functional amphiphilic bioconjugate is presented as well as its aqueous solution behaviour and encapsulation efficiency using ketoconazole as a model hydrophobic drug. [less ▲]Detailed reference viewed: 15 (2 ULg) Les voyages du goût, entre localité et exotisme.Mescoli, Elsa in Anthropology of Food: Fumey, G. ; Jackson, P. et Raffard, P. Culture Alimentaires et Territoires (in press)« Savourer la nourriture et respirer la culture marocaine deviennent une expérience et une émotion unique, à découvrir et à vivre grâce à la combinaison d’arômes, goûts, couleurs, formes et musiques ». Au ... [more ▼]« Savourer la nourriture et respirer la culture marocaine deviennent une expérience et une émotion unique, à découvrir et à vivre grâce à la combinaison d’arômes, goûts, couleurs, formes et musiques ». Au travers de ce slogan, un renommé restaurant d’inspiration marocaine de la ville de Milan en Italie, invitait ses clients à voyager au travers de leur sensorialité dans une culture alimentaire (et par synecdoque, une culture tout court) autre. Le goût les aurait amenés à expérimenter un exotisme, qui était néanmoins contrôlé, car certaines conditions imposées par les normes locales faisaient en sorte que le déplacement vécu ne fût pas excessivement déstabilisant. Le résultat de ces négociations consistait d’un menu qui accostait les gastronomies marocaine et italienne (ou les procédures de l’une et de l’autre) dans certains plats décrits comme « fusion », qui satisfaisaient (ou non) les exigences des clients. Dans cet article, je vise à mettre en évidence les mécanismes de production discursive et matérielle de ces plats, ainsi comme les opinions des consommateurs. Pour ce faire, j’analyserai le matériel ethnographique collecté auprès du local en question en le comparant avec les pratiques observés dans d’autres restaurants milanais. En ce qui concerne les effets obtenus, j’appuierait mon analyse sur une plateforme de médias sociaux consacrée aux recensions d’endroits et locaux touristiques. La culture alimentaire sera étudiée dans ses aspects symboliques mais aussi matériels, en faisant également recours au matériel visuel récolté. [less ▲]Detailed reference viewed: 17 (4 ULg) Le point sur l’évaluation de la force des muscles respiratoiresKellens, Isabelle ; Crielaard, Jean-Michel in Revue Médicale de Liège (in press)The strength of respiratory muscles is crucial for quality of life, especially for patients with lung or neurological disorders. Several methods can be used to assess them: i.e direct or indirect ... [more ▼]The strength of respiratory muscles is crucial for quality of life, especially for patients with lung or neurological disorders. Several methods can be used to assess them: i.e direct or indirect, voluntary or involuntary. The conventional spirometry method assesses indirectly the respiratory function by measuring maximum inspiratory and expiratory pressure, which reflects the coordination of all respiratory muscles. Techniques of magnetic and electrical stimulation can detect a specific muscle dysfunction, independently of the patient's motivation, however they are invasive methods as measurements are made in the esophagus and stomach. The voluntary techniques are generally non-invasive and require patient's cooperation. Measures of respiratory muscle strength, coupled to a conventional spirometry, can predict the development of ventilatory support in patients at risk, and may be useful during weaning from mechanical ventilation in intensive care units. [less ▲]Detailed reference viewed: 117 (34 ULg) Host-habitat location by the parasitoid, Nasonia vitripennis Walker (Hymenoptera: Pteromalidae).Frederickx, Christine ; Dekeirsschieter, Jessica ; Verheggen, François et alin Journal of Forensic Sciences (in press)This study investigated the role of odorant cues used during host-habitat location by the generalist parasitoid, Nasonia vitripennis Walker. N vitripennis is a common parasitoid of Dipteran pupae found in ... [more ▼]This study investigated the role of odorant cues used during host-habitat location by the generalist parasitoid, Nasonia vitripennis Walker. N vitripennis is a common parasitoid of Dipteran pupae found in association with decaying carrion. Behavioral assays were used to investigate the host-habitat searching behavior under different scenarios. First, we demonstrated N. vitripennis to be significantly attracted toward odorant cues associated with decaying meat. The biological activity of nine of the volatile molecules constituting the odor of decaying meat were tested on the searching behavior of parasitoid females through two complementary chemoecological approaches: electronantennography (EAG) and olfactometry bioassays. Butanoic acid and butan-1-ol elicited high olfactory responses, but no attraction was induced by these two chemicals. Behavioral assays showed that, among the VOCs tested, methyldisulfanylmethane (DMDS) was the only volatile chemical to induce attraction in N. vitripennis. [less ▲]Detailed reference viewed: 42 (17 ULg) Social Coops: When Social Enterprises Meet the Cooperative TraditionDefourny, Jacques ; Nyssens, Marthein Journal of Entrepreneurial and Organizational Diversity (in press)Detailed reference viewed: 103 (13 ULg) Analysis of transient scattering problems using a discontinuous Galerkin method: application to the shielding effectiveness of enclosures with heterogeneous wallsBoubekeur, Mohamed; Kameni, Abelin; Pichon, Lionel et alin International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (in press)In this paper, different formulations of Maxwell equations are combined for computing the shielding effectiveness of enclosures made from heterogeneous periodic materials. The validity of the homogenized ... [more ▼]In this paper, different formulations of Maxwell equations are combined for computing the shielding effectiveness of enclosures made from heterogeneous periodic materials. The validity of the homogenized parameters given by Maxwell-Garnett rules in the frequency domain are tested in the time domain using a nodal discontinuous Galerkin method, which uses an interface condition based on analytical solution in the frequency domain to replace a conductive sheet. This interface condition allows to avoid meshing the thin sheet, thus reducing the computational cost. Results of scattering by composite enclosures are presented in the frequency domain thanks to a Fast Fourier Transform. [less ▲]Detailed reference viewed: 20 (3 ULg) An astronomical survey conducted in BelgiumNazé, Yaël ; Fontaine, Sébastien in Physics Education (in press)This article presents the results of the first survey conducted in Belgium about the interest and knowledge in astronomy. Two samples were studied, the public at large (667 questionnaires) and students ... [more ▼]This article presents the results of the first survey conducted in Belgium about the interest and knowledge in astronomy. Two samples were studied, the public at large (667 questionnaires) and students (2589 questionnaires), but the results are generally similar in both samples. We evaluated people’s interest, main information source, and attitudes towards astronomy, as well as their supposed and actual knowledge of the subject. The main conclusion is that, despite a poor self-confidence, people do know the basic astronomical concepts. However, that knowledge is not deeply rooted, as reasoning questions show well-spread misconceptions and/or misunderstandings. [less ▲]Detailed reference viewed: 16 (6 ULg) Helicopter regulation in 112 Emergency Medical Communication Center : time-distances from landing to the patientStipulante, Samuel ; MOENS, Didier ; Pirotte, Olivier et alin AIRMED (in press)Detailed reference viewed: 14 (3 ULg) Les niveaux d'analyse dans la microstructure de l'Atlas linguistique de la WallonieBaiwir, Esther in Estudis Romànics (in press), 36Le lecteur de l'ALW constate rapidement que les formes phonétiques n'y sont pas livrées brutes sur des cartes, comme dans les atlas de France par région, ni sous forme de liste, mais bien dans une ... [more ▼]Le lecteur de l'ALW constate rapidement que les formes phonétiques n'y sont pas livrées brutes sur des cartes, comme dans les atlas de France par région, ni sous forme de liste, mais bien dans une présentation structurée en paragraphes, regroupant selon des critères variables des formes phonétiques distinctes. Après avoir proposé une schématisation de la microstructure du projet, sur base d'une notice-modèle (1), nous détaillerons ces critères de classement (phonologique, morphologique, syntaxique, étymologique, motivationnel ou encore sémantique; 2). Chaque paragraphe de matériaux porte un titre, qui représente d'une façon plus ou moins abstraite les matériaux qu'il comporte. Ce titre peut prendre différentes formes: une orthographe dite « Feller » ou des types reconstruits plus abstraits. Nous tenterons de montrer en quoi ces deux images très différentes des matériaux ne sont pas réductibles l'une à l'autre (3). [less ▲]Detailed reference viewed: 29 (4 ULg) Compte rendu de l'ouvrage de F. Ravoire et A. Dietrich (dir.), La cuisine et la table dans la France de la fin du Moyen Âge. Contenus et contenants du XIVe au XVIe siècleVon Hoffmann, Viktoria in Moyen Age (Le) (in press)Detailed reference viewed: 25 (5 ULg) Mesoporous Lithium Vanadium Oxide as Thin Film Electrode for Lithium-Ion Batteries: Comparison between Direct Synthesis of LiV2O5 and Electrochemical Lithium Intercalation in V2O5Caes, Sébastien ; Arrebola, Jose Carlos; Krins, Natacha et alin Journal of Materials Chemistry A (in press)Detailed reference viewed: 7 (0 ULg) Heterochrony in a complex world: disentangling environmental processes of facultative paedomorphosis in an amphibianDenoël, Mathieu ; Ficetola, Gentile Francescoin Journal of Animal Ecology (in press)1. Heterochrony, the change in the rate or timing of development between ancestors and their descendants, plays a major role in evolution. When heterochrony produces polymorphisms, it offers the ... [more ▼]1. Heterochrony, the change in the rate or timing of development between ancestors and their descendants, plays a major role in evolution. When heterochrony produces polymorphisms, it offers the possibility to test hypotheses that could explain its success across environments. Amphibians are particularly suitable to exploring these questions because they express complex life cycles (i.e. metamorphosis) that have been disrupted by heterochronic processes (paedomorphosis: retention of larval traits in adults). The large phenotypic variation across populations suggests that more complex processes than expected are operating, but they remain to be investigated through multivariate analyses over a large range of natural populations across time. 2. In this study we compared the likelihood of multiple potential environmental determinants of heterochrony. We gathered data on the proportion of paedomorphic and metamorphic palmate newts (Lissotriton helveticus) across more than 150 populations during 10 years, and used an information-theoretic approach to compare the support of multiple potential processes. 3. Six environmental processes jointly explained the proportion of paedomorphs in populations: predation, water availability, dispersal limitation, aquatic breathing, terrestrial habitat suitability, and anti-predator refuges. Analyses of variation across space and time supported models based on the advantage of paedomorphosis in favourable aquatic habitats. 4. Paedomorphs were favoured in deep ponds, in conditions favourable to aquatic breathing (high oxygen content), with lack of fish, and surrounded by suitable terrestrial habitat. Metamorphs were favoured by banks allowing easy dispersal. 5. These results indicate that heterochrony relies on complex processes involving multiple ecological variables and exemplifies why heterochronic patterns occur in contrasted environments. On the other hand, the fast selection of alternative morphs shows that metamorphosis and paedomorphosis developmental modes could be easily disrupted in natural populations. [less ▲]Detailed reference viewed: 106 (57 ULg) Enhancing a CH-pi interaction to increase the affinity for 5-HT1A receptorsLiégeois, Jean-François ; Lespagnard, Marc; Meneses Salas, Elsa et alin ACS Medicinal Chemistry Letters (in press)An electrostatic interaction related to a favourable position of the distal phenyl ring and a phenylalanine residue in the binding pocket would explain the higher 5-HT1A affinity of a 4-phenyl-1,2,3,6 ... [more ▼]An electrostatic interaction related to a favourable position of the distal phenyl ring and a phenylalanine residue in the binding pocket would explain the higher 5-HT1A affinity of a 4-phenyl-1,2,3,6-tetrahydropyridine (THP) analogue compared to the corresponding 4-phenylpiperazine analogue. To explore a possible reinforcement of this interaction to increase the affinity for 5-HT1A receptors, different 4-substituted-phenyl analogues were synthesized and tested. The most important increase of affinity is obtained with two electron-donating methyl groups in position 3 and 5 [less ▲]Detailed reference viewed: 11 (3 ULg) De Jacques Antoine aux Eperonniers : l'édition littéraire en Belgique au passé et au présent (seconde partie)Durand, Pascal ; Habrand, Tanguy in Textyles : Revue des Lettres Belges de Langue Française (in press)Second volet d'un article en deux parties portant sur l'édition littéraire contemporaine en Belgique, autour de deux maisons importantes : les éditions Jacques Antoine et les éditions des Eperonniers. La ... [more ▼]Second volet d'un article en deux parties portant sur l'édition littéraire contemporaine en Belgique, autour de deux maisons importantes : les éditions Jacques Antoine et les éditions des Eperonniers. La seconde partie de cette étude porte plus précisément sur la transition d'une maison à l'autre et sur la politique de la création contemporaine suivie par Lysiane d'Hayere aux Eperonniers. [less ▲]Detailed reference viewed: 16 (2 ULg) De l’usage de la photographie dans une enquête ethno-sociologique sur la mémoire de l’exil et de l’immigration espagnols en BelgiqueMolina Marmol, Maïté in RELAIS Revue du laboratoire d'études et de recherches sur l'interculturel (in press)Detailed reference viewed: 13 (0 ULg) Virtual reality as a complementary therapy to sexual addiction treatmentCismaru Inescu, Adina; Andrianne, Robert ; Triffaux, Jean-Marc in International Journal of Advanced Computer Science (in press), 3(7), 1-5Detailed reference viewed: 66 (20 ULg) A simulation study comparing multiple imputation methods for incomplete longitudinal ordinal dataDonneau, Anne-Françoise ; Mauer, Murielle; Molenberghs, Geert et alin Communications in Statistics : Simulation & Computation (in press)Detailed reference viewed: 11 (4 ULg) A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406Tsapras, Y.; Choi, J.-Y.; Street, R. A. et alin Astrophysical Journal (in press)We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the lightcurve ... [more ▼]We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the lightcurve, especially the perturbation part, allowed us to accurately measure the parallax effect and lens orbital motion. Combining our measurement of the lens parallax with the angular Einstein radius determined from finite-source effects, we estimate the physical parameters of the lens system. We find that the event was caused by a $2.73\pm 0.43\ M_{\rm J}$ planet orbiting a $0.44\pm 0.07\ M_{\odot}$ early M-type star. The distance to the lens is $4.97\pm 0.29$\ kpc and the projected separation between the host star and its planet at the time of the event is $3.45\pm 0.26$ AU. We find that the additional coverage provided by follow-up observations, especially during the planetary perturbation, leads to a more accurate determination of the physical parameters of the lens. [less ▲]Detailed reference viewed: 14 (3 ULg) Le confesseur du Prince: profil et fonction des confesseurs des gouverneurs-généraux espagnols à Bruxelles de 1598 à 1665Pirlet, Pierre-François in Revue d'Histoire Ecclésiastique (in press), (3-4), Detailed reference viewed: 16 (3 ULg) L’éjaculation précoce : une revue de questionsKempeneers, Philippe ; ANDRIANNE, Robert ; Lequeux, Armand et alin Revue Francophone de Clinique Comportementale et Cognitive (in press)Premature ejaculation (PE) is a disorder characterized by three components: (1) a rapid ejaculation, (2), a feeling of lack of control upon ejaculation, (3) and a distress related to this condition. The ... [more ▼]Premature ejaculation (PE) is a disorder characterized by three components: (1) a rapid ejaculation, (2), a feeling of lack of control upon ejaculation, (3) and a distress related to this condition. The criterion of rapidity appears to be most controversial: some authors refer only to subjects’ judgment, while other ones set a maximum ejaculatory latency. Although it focused some criticisms related to a lack of objective latency criteria, the definition of PE propounded by the DSM-IV(-TR) remains most currently used. PE affects about 15 to 30% of the male population. However, the estimations can vary widely depending on populations and methodologies. Several factors contribute to the occurrence of the disorder: one may very probably charge bio-constitutional risks, learning factors, cultural and cognitive influences and the role of anxiety. No robust data allow to implicate personality factors other than anxiety. The influence of the age remains a controversial topic. Cognitive-behavioral techniques appear to be quite efficient in the treatment of PE. However the success rates are variable, and the precise nature of the therapeutic active process remains unclear. Serotonergic drugs and local anesthetics are also efficient, but their action remains strictly symptomatic. The usefulness of phosphodiesterase-5 inhibitors is disputed. Combining psychological and pharmacological approaches might be promising. Unfortunately, there is a lack of clinical trials in this field. Although effective treatments do exist, only a few affected people appear to use them satisfactorily. Efforts have still to be made in order to train adequately heath practitioners and to make the treatments more accessible to the public. [less ▲]Detailed reference viewed: 21 (0 ULg) Cosmological constraints on mirror matter parametersCiarcelluti, Paolo; Wallemacq, Quentin in Advances in High Energy Physics (in press), 2014Up-to-date estimates of the cosmological parameters are presented as a result of numerical simulations of cosmic microwave background and large scale structure, considering a flat Universe in which the ... [more ▼]Up-to-date estimates of the cosmological parameters are presented as a result of numerical simulations of cosmic microwave background and large scale structure, considering a flat Universe in which the dark matter is made entirely or partly of mirror matter, and the primordial perturbations are scalar adiabatic and in linear regime. A statistical analysis using the Markov Chain Monte Carlo method allows to obtain constraints of the cosmological parameters. As a result, we show that a Universe with pure mirror dark matter is statistically equivalent to the case of an admixture with cold dark matter. The upper limits for the ratio of the temperatures of ordinary and mirror sectors are around 0.3 for both the cosmological models, that show the presence of a dominant fraction of mirror matter, 0.06 < Ω_{mirror} h^2 < 0.12. [less ▲]Detailed reference viewed: 10 (2 ULg) Multi-period vehicle loading with stochastic release datesArda, Yasemin ; Crama, Yves ; Kronus, David et alin EURO Journal on Transportation and Logistics (in press)This paper investigates a multi-period vehicle loading problem with stochastic information regarding the release dates of items to be transported. The deterministic version of the problem can be ... [more ▼]This paper investigates a multi-period vehicle loading problem with stochastic information regarding the release dates of items to be transported. The deterministic version of the problem can be formulated as a large-scale set covering problem. Several heuristic algorithms are proposed to generate decision policies for the stochastic optimization model over a long rolling horizon. The resulting policies have been extensively tested on instances which display the main characteristics of the industrial case-study that motivated the research. The tests demonstrate the benefits of the multi-period stochastic model over simple myopic strategies. A simple and efficient heuristic is shown to deliver good policies and to be robust against errors in the estimation of the probability distribution of the release dates. [less ▲]Detailed reference viewed: 105 (23 ULg) Moyens et enjeux d’une approche didactique des IlluminationsSaint-Amand, Denis in Parade Sauvage (in press), 25Detailed reference viewed: 15 (0 ULg) L'espace transitionnel winnicotien et l'_Urraum_ kantienSeba, Jean-Renaud in Revista Natureza Humana (in press)Detailed reference viewed: 99 (14 ULg) Segregation distortions in an interspecific cotton population issued from the [(Gossypium hirsutum x G. raimondii)² x G. sturtianum] hybridDiouf, Fatimata Bintou Hassédine ; BENBOUZA, Halima; Nacoulima, Nafissatou Lalaïssa et alin Tropicultura (in press)The segregation ratio of 10 Gossypium sturtianum specific SSR markers belonging to linkage groups c2-c14, c3-c17, and c6-c25was analysed in the BC2S6 progeny of the [G.hirsutum x G. raimondii)² x G ... [more ▼]The segregation ratio of 10 Gossypium sturtianum specific SSR markers belonging to linkage groups c2-c14, c3-c17, and c6-c25was analysed in the BC2S6 progeny of the [G.hirsutum x G. raimondii)² x G. sturtianum] (HRS) hybrid; based on chi-square test. All the marker loci tested were associated with skewed allele frequencies (P < 0.001) showing a strong SD with a zygotic selection. The possible causes and consequences of this massive segregation distortion are discussed [less ▲]Detailed reference viewed: 21 (1 ULg) Devonian antiarch placoderms from Belgium revisitedOlive, Sébastien in Acta Palaeontologica Polonica (in press)Anatomical, systematic, and paleobiogeographical data on the Devonian antiarchs from Belgium are reviewed, updated and completed thanks to new data from the field and re-examination of paleontological ... [more ▼]Anatomical, systematic, and paleobiogeographical data on the Devonian antiarchs from Belgium are reviewed, updated and completed thanks to new data from the field and re-examination of paleontological collections. The material of Bothriolepis lohesti Leriche, 1931 is enhanced and the species better described. An undetermined species of Bothriolepis is recorded from the Famennian of Modave (Liège Province), one species of Asterolepis redescribed from the Givetian of Hingeon and another one described from the Givetian of Mazy (Namur Province). Grossilepis rikiki sp. nov. is recorded from the Famennian tetrapod-bearing locality of Strud (Namur Province) and from the Famennian of Moresnet (Liège Province). It is the first occurrence of Grossilepis after the Frasnian and on the central southern coast of the Euramerican continent. Its occurrence in the Famennian of Belgium may be the result of a late arrival from the Moscow Platform and the Baltic Depression, where the genus is known from Frasnian deposits. Remigolepis durnalense sp. nov. is described from the Famennian of Spontin near Durnal (Namur Province). Except for the doubtful occurrence of Remigolepis sp. in Scotland, this is the first record of this genus in Western Europe. Its occurrence in Belgium reinforces the strong faunal affinities between Belgium and East Greenland and the hypothesis of a hydrographical link between the two areas during the Late Devonian. [less ▲]Detailed reference viewed: 22 (0 ULg) Réexamen du dessin du codex miscellaneus de Montserrat (P. Montserrat inv. nr. 154 = MP³ 2916.41)Macedo, Gabriel in Aegyptus (in press), 90New interpretation of the drawing of a mythological hero in the 4th Montserrat codex miscellaneus.Detailed reference viewed: 13 (5 ULg) De zwarte ziel der blanke protestanten. Creolisering in het werk van Cola Debrot, Boeli van Leeuwen en Tip MaruggAndringa, Kim in Neerlandica Wratislaviensis (in press)Detailed reference viewed: 10 (0 ULg) Allogeneic stem cell transplantation for advanced cutaneous T-cell lymphomas: a study from the French Society of Bone Marrow Transplantation and French Study Group on Cutaneous Lymphomasde Masson, Adele; Beylot-Barry, Marie; Bouaziz, Jean-David et alin Haematologica (in press)Detailed reference viewed: 22 (2 ULg) The role of positron emission tomography-computed tomography and magnetic resonance imaging in diagnosis and follow-up of multiple myelomaCAERS, Jo ; WITHOFS, Nadia ; Hillengass, Jens et alin Haematologica (in press)Detailed reference viewed: 12 (5 ULg) EL TLC UE – Colombia – Perú y la integración regional latinoamericana. ¿Hacia una norteamericanización de la estrategia interregional europea?Parra Santamaria, Lusmiriam Andrea in Comentario Internacional (in press)This document compares the contents of the Free Trade Agreements (FTA) that have been signed by the European Union and by the United States with Colombia. It analyses them from a perspective that ... [more ▼]This document compares the contents of the Free Trade Agreements (FTA) that have been signed by the European Union and by the United States with Colombia. It analyses them from a perspective that characterizes FTAs into “WTO-extra” and “WTO-plus” agreements. By this analysis, an “Americanization” of the European interregional strategy is partially verified. Nevertheless, this “Americanization” appears to be partial, due to the inclusion of “regional integration” as a transversal theme in European FTA. [less ▲]Detailed reference viewed: 12 (0 ULg) The ideology of the British National PartyJamin, Jérôme in Revue LISA : Littératures, Histoire des Idées, Images, Sociétés du Monde Anglophone = LISA e-Journal (in press)Detailed reference viewed: 15 (7 ULg) L’acte incendiaire, son sujet et sa signification : propositions à partir du Saint Genet de Jean-Paul SartreEnglebert, Jérôme in Annales Médico-Psychologiques (in press)Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the ... [more ▼]Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the infractional acting and its social meaning. Methods After recalling the basic notions of international literature about fire setters (including confusion with pyromania, diagnostic problems proposed by the DSM IV and the concept of "communicative arson"), we propose phenomenological and existential clues to discuss the act and its meaning. It is the unlawful act that is analysed and more specifically the arson. We propose different analysis than the psychic causality which is inspired by psychoanalysis. The criminogenesis gives way to a questioning of identity, about the place of fire in the subject’s history and within its relationships to others. As proposed by Sartre, the paradigm of this research is to consider the meaning "as the return of the future in the present". The second field of this study is an analysis of three clinical cases. These cases are the result of a forensic practice. The method is focused on the analysis of a narrative and autobiographical production. By this way we studied the temporal process of these three arsonists. Results A comparative reading of the psychobiography of Jean Genet written by Sartre and of the situation of arsonists gives accurate information. The "criminogenesis" gives way to a questioning of identity. In this way we discuss the meaning of fire in the subject's history and within its relationship to others. We highlight the inscription of the act in the social and constitutive process of the individual. From the clinical material, the author demonstrates a link between arson and construction of identity. Identity is considered as a dialectic between “ipse” and “idem”, as suggested by Ricœur. We can therefore consider the real sense that the arson has from the perspective of the actor but also from the viewpoint of the society and these conceptions may be similar or different. In clinical practice, we recommend to pay special attention to how the fire is part of the biography of the patient. Conclusions The fascination for fire is a source of meaning which can be radically different depending on whether we consider the external interpreter (the world or the clinician) or the author of the action. The basic principles of hermeneutics, as described by Gadamer and Ricœur, are to demonstrate that the understanding and the interpretation are not only the methods used in the human sciences but are also part of the fundamental processes inherent in human nature. Hermeneutics in general is the opposite of a doctrine of truth. It rather seeks to show arbitrarily how the interpretation and the search for meaning are paradigmatic of the human experience. [less ▲]Detailed reference viewed: 125 (16 ULg) Penser la conjoncture avec Spinoza : de la pars destruens à la pars construens. Le spinozisme de Frédéric LordonMancuso, Eva in Dissensus (in press), 6Detailed reference viewed: 69 (14 ULg) Three species for the price of one within the moss Homalothecium sericeum s.l.Hedenäs, Lars; Desamore, Aurélie ; Laenen, Benjamin et alin Taxon (in press)Detailed reference viewed: 20 (10 ULg) Une histoire de l’hétérogénéité de la classe ouvrière. Refoulement, effets critiques et fragmentation. Présentation de Xavier Vigna, Histoire des ouvriers en France au XXe siècle, Perrin, 2012Mancuso, Eva in Cahiers du GRM (in press), 5Detailed reference viewed: 18 (7 ULg) Compte rendu de l'ouvrage de C. E. Barrett, "Egyptianizing Figurines from Delos. A Study in Hellenistic Religion"Veymiers, Richard in Kernos : Revue Internationale et Pluridisciplinaire de Religion Grecque (in press), 27Detailed reference viewed: 8 (0 ULg) Dynamiques transactionnelles de reconnaissance et professionnalisation des stagiaires : perspectives pour la formation initialeDejean, Karine in Education et Formation (in press)Cet article prend appui sur une recherche doctorale. A partir de l’analyse de récits d’expériences marquantes, à forte charge émotionnelle, rapportées par des enseignants débutants, des schémas ... [more ▼]Cet article prend appui sur une recherche doctorale. A partir de l’analyse de récits d’expériences marquantes, à forte charge émotionnelle, rapportées par des enseignants débutants, des schémas d’intelligibilité de ces situations vécues ont été construits. Ceux-ci rendent compte des transformations identitaires et émotionnelles des enseignants débutants au travers des dynamiques transactionnelles de reconnaissance. Ces résultats ouvrent des perspectives pour la formation initiale des enseignants et l’accompagnement des enseignants débutants. Les schémas d’intelligibilité pourront être utilisés dans une démarche de réflexivité pour faciliter le décodage de situations professionnelles à forte charge émotionnelle vécues par l’enseignant et l’aider à donner sens à ses expériences [less ▲]Detailed reference viewed: 11 (2 ULg) Differential cadmium and zinc distribution in relation to their physiological impact in the leaves of the accumulating Zygophyllum fabago LLEFÈVRE, Isabelle; VOGEL‐MIKUŠ, Katarina; JEROMEL, Luka et alin Plant, cell & environment (in press)Cadmium and zinc share many similar physiochemical properties, but their compartmentation, complexation and impact on other mineral element distribution in plant tissues may drastically differ. In this ... [more ▼]Cadmium and zinc share many similar physiochemical properties, but their compartmentation, complexation and impact on other mineral element distribution in plant tissues may drastically differ. In this study, we address the impact of 10-μM Cd or 50-μM Zn treatment on ion distribution in leaves of a metallicolous population of the non-hyperaccumulating species Zygophyllum fabago at tissue and cell level, and the consequences on the plant response through a combined physiological, proteomic and metabolite approach. Micro-proton induced X-ray emission and laser ablation inductively coupled mass spectrometry analyses indicated hot spots of Cd concentrations in the vicinity of vascular bundles in response to Cd treatment, essentially bound to S-containing compounds as revealed by extended X-Ray absorption fine structure and non-protein thiol compounds analyses. A preferential accumulation of Zn occurred in vascular bundle and spongy mesophyll in response to Zn treatment, and was mainly bound to O/N-ligands. Leaf proteomics and physiological status evidenced a protection of photosynthetically active tissues and the maintenance of cell turgor through specific distribution and complexation of toxic ions, reallocation of some essential elements, synthesis of proteins involved in photosynthetic apparatus or C-metabolism, and metabolite synthesis, with some specificities regarding the considered heavy metal treatment. [less ▲]Detailed reference viewed: 16 (2 ULg) dispersal and predation of diaspores of Coula edulis Baill. in an evergreen forest of GabonMoupela, Christian ; Doucet, Jean-Louis ; Daïnou, Kasso et alin African Journal of Ecology (in press)The African walnut ( Coula edulis) is a tree species of African evergreen forests, the seeds of which are collected and traded by African people. Many animal species consume African walnut diaspores ... [more ▼]The African walnut ( Coula edulis) is a tree species of African evergreen forests, the seeds of which are collected and traded by African people. Many animal species consume African walnut diaspores; however, their roles as dispersers or predators have yet to be clarified. In this study, we present observations conducted in two different habitats of a Gabonese region over a 3-year period. The originality of this research resides in the combination of three complementary approaches: (i) the use of camera-traps (ii) the exploration of land rodent burrows and (iii) the examination of elephant dung. In total, 408 camera-trap photographs have shown seven animal species involved in the dispersal/predation of C. edulis. Among these seven frugivorous species, the bush pig was found to be the main consumer and predator of seeds. Land rodents (Muridae) are potential predators, as they damaged the seeds and buried them deep in the soil. They may also play a role in the regeneration process as a result of the loss of seeds during transportation. Finally, no seeds appeared to emerge intact from elephant faeces. These results indicate that the natural regeneration rate of this tree species is low, unless other complex mecha-nisms are involved. [less ▲]Detailed reference viewed: 40 (22 ULg) Compte-rendu de l'ouvrage de C.-E. Centlivres Challet, Like Man, Like Woman : Roman Women, Gender Qualities and Conjugal Relationships at the Turn of the First CenturyVandersmissen, Marc in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (in press)Detailed reference viewed: 19 (1 ULg) Approximate and efficient methods to assess error fields in spatial gridding with Diva (Data Interpolating Variational Analysis)Beckers, Jean-Marie ; Barth, Alexander ; Troupin, Charles et alin Journal of Atmospheric & Oceanic Technology (in press)We present new approximate methods to provide error fields for the spatial analysis tool Diva. It is first shown how to replace the costly analysis of a large number of covariance functions by a single ... [more ▼]We present new approximate methods to provide error fields for the spatial analysis tool Diva. It is first shown how to replace the costly analysis of a large number of covariance functions by a single analysis for quick error computations. Then another method is presented where the error is only calculated in a small number of locations and from there the spatial error field itself interpolated by the analysis tool. The efficiency of the methods is illustrated on simple schematic test cases and a real application in the Mediterranean Sea. These examples show that with these methods one has the possibility for quick masking of regions void of sufficient data and the production of "exact" error fields at reasonable cost. The error-calculation methods can also be generalized for use with other analysis methods such as 3D-Var and are therefore potentially interesting for other implementations. [less ▲]Detailed reference viewed: 19 (4 ULg) Compte-rendu de l'ouvrage de Serge Lusignan, Essai de d'histoire sociololinguistique. Le français picard au Moyen ÂgeMazziotta, Nicolas in Moyen Age (Le) (in press)Detailed reference viewed: 8 (0 ULg) Les ambiguïtés de l’anthropomorphisme : de la divinité agissante à sa statue dans la céramique grecqueCollard, Hélène in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)L’image, sous ses divers aspects, a joué un rôle essentiel dans la vie des anciens Grecs, en particulier dans le domaine religieux, puisque elle était l’une des modalités de perception du divin. En Grèce ... [more ▼]L’image, sous ses divers aspects, a joué un rôle essentiel dans la vie des anciens Grecs, en particulier dans le domaine religieux, puisque elle était l’une des modalités de perception du divin. En Grèce, la figuration anthropomorphe des dieux est largement majoritaire. Toutefois, en se tournant vers un support particulier, le vase peint, et un type de représentation particulier, la statue divine, on montrera ici que l’anthropomorphisme a pu amener une certaine ambiguïté. Dans la céramique, les représentations de statues fonctionnent sur plusieurs modes, selon la chronologie. C’est ce que l’on propose d’analyser, en examinant un groupe de vases décorés d’un thème semblable et sur lesquels une divinité est représentée, mais soit sous la forme d’une figure « vivante », soit d’une statue plus ou moins bien caractérisée. Cette étude permettra d’aborder les concepts de « fixité » et de « mouvement » de/dans l’image, mais aussi d’explorer quelques pistes de réflexions sur l’image divine et, plus largement, sur les modes de représentation du divin en Grèce ancienne. [less ▲]Detailed reference viewed: 31 (1 ULg) Rôle et langue de Tchantchès dans les représentations en castelets des romans de chevalerie : le cas des Quatre fils AymonBaiwir, Esther ; Impe, Anaëllein Enquêtes du Musée de la Vie Wallonne (in press)Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du ... [more ▼]Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du répertoire liégeois ? Quels sont ses moyens d'action, mais également ses modes d'expression ? Divers registres de langue apparaissent au fil des spectacles ; quels sont ceux prêtés à notre héros ? Et surtout, ce rôle et cette langue ont-ils évolué au fil du temps ? C’est à ces quelques questions que nous tentons de répondre, en observant les différentes interventions de Tchantchès dans les réécritures des aventures des quatre fils Aymon, l’une des œuvres les plus anciennes et les plus fréquemment jouées dans les théâtres liégeois dévolus aux comédiens de bois. [less ▲]Detailed reference viewed: 30 (8 ULg) Building on anticipation: dystopia as empowermentClaisse, Frédéric ; Delvenne, Pierre in Current Sociology (2015), 63(2), A dystopia can be defined as the depiction of a dark future building on the systematic amplification of current trends and features. It relates to a complex narrative posture that relies on the critical ... [more ▼]A dystopia can be defined as the depiction of a dark future building on the systematic amplification of current trends and features. It relates to a complex narrative posture that relies on the critical observation of a threatening present that would lead to an apocalyptic future “if nothing was done.” Yet, however inescapable this future may be described, the very existence of such a narrative presupposes that the political community it tries to reach is actually able to do something to thwart it. Oddly enough, a successful dystopia aims at making itself obsolete: once the world it depicts is identified as a possible (or even unavoidable) future, it seems to empower its readers again, restoring what Musil called a ‘sense of possibilities’ that eventually make alternative pathways thinkable. In our contribution, we propose to broaden the range of commonly accepted dystopists (usually fiction writers and novelists like e.g. George Orwell’s 1984) to sociologists like Ulrich Beck. Building on his Risk Society (1986), Beck’s strong diagnosis about the breakdown of First Modernity and the coming of Second Modernity contains a noticeable prophetic and evangelical overtone that aims at “reinventing politics.” We defend the notion that the dystopian posture can be used to characterize both fiction and nonfiction writers such as Orwell and Beck: a common ability, based on the same set of inextricably cognitive and normative patterns, to anticipate the future and eventually empower political communities to engage in further action. [less ▲]Detailed reference viewed: 85 (5 ULg) Given to a Deity? Religious and Social Reappraisal of Human Consecrations in the Hellenistic and Roman EastCaneva, Stefano ; Delli Pizzi, Aurian in Classical Quarterly (2015)Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that ... [more ▼]Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that someone is said to be ‘sacred’ to a specific deity necessarily involve that he went through a process of dedication? This article aims at providing a global picture of different situations in which processes of dedications took place. Among the several issues that are tackled, the cornerstone of this article consists of two questions: for what purposes did some people decide to consecrate a human being to a deity and what were the consequences for the consecrated individuals on religious and social levels? Different categories of persons will be contrasted, in terms of processes through which they acquire their new status but also in terms of the freedom/lack of freedom which is conveyed by this new status. It will also be shown that, as far as method is concerned, it is necessary to complete a lexical analysis with a contextual perspective for a deeper understanding of the problem. [less ▲]Detailed reference viewed: 41 (11 ULg) Les porcheries : réservoirs des culicoïdes (Diptera: Ceratopogonidae), vecteurs des virus de la Maladie de la Langue bleue et de Schmallenberg ?Zimmer, Jean-Yves ; Saegerman, Claude; Martinelle, Ludovic et alin Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014)Detailed reference viewed: 8 (2 ULg) Comparison of centralized, distributed and hierarchical model predictive control schemes for electromechanical oscillations damping in large-scale power systemsWang, Da ; Glavic, Mevludin ; Wehenkel, Louis in International Journal of Electrical Power & Energy Systems (2014), 58The paper investigates the feasibility of applying Model Predictive Control (MPC) as a viable strategy to damp wide-area electromechanical oscillations in large-scale power systems. First a fully ... [more ▼]The paper investigates the feasibility of applying Model Predictive Control (MPC) as a viable strategy to damp wide-area electromechanical oscillations in large-scale power systems. First a fully centralized MPC scheme is considered, and its performances are evaluated first in ideal conditions and then by considering state estimation errors and communication delays. This scheme is further extended into a distributed scheme with the aim of making it more viable for very large-scale or multi-area systems. Finally, a robust hierarchical multi-area MPC scheme is proposed, introducing a second layer of MPC based controllers at the level of individual power plants and transmission lines. Simulations are carried out using a 70-bus test system. The results reveal all three MPC schemes as viable solutions to supplement existing controllers in order to improve the system performance in terms of damping. The hierarchical scheme is the one combining the best performances in nominal conditions and the best robustness with respect to partial component failures and various modeling and measurement errors. [less ▲]Detailed reference viewed: 20 (2 ULg) Forest radiative transfer models: which approach for which application?Ligot, Gauthier ; Balandier, Philippe; Courbaud, Benoît et alin Canadian Journal of Forest Research = Journal Canadien de la Recherche Forestière (2014), 44(5), 385-397Detailed reference viewed: 14 (2 ULg) The XMM-Newton view of the yellow hypergiant IRC+10420 and its surroundingsDe Becker, Michaël ; Hutsemekers, Damien ; Gosset, Eric in New Astronomy (2014), 29Among evolved massive stars likely in transition to the Wolf-Rayet phase, IRC +10420 is probably one of the most enigmatic. It belongs to the category of yellow hypergiants and it is characterized by ... [more ▼]Among evolved massive stars likely in transition to the Wolf-Rayet phase, IRC +10420 is probably one of the most enigmatic. It belongs to the category of yellow hypergiants and it is characterized by quite high mass loss episodes. Even though IRC+10420 benefited of many observations in several wavelength domains, it has never been a target for an X-ray observatory. We report here on the very first dedicated observation of IRC+10420 in X-rays, using the XMM-Newton satellite. Even though the target is not detected, we derive X-ray flux upper limits of the order of 1–3 ×10−14 erg cm−2 s−1 (between 0.3 and 10.0 keV), and we discuss the case of IRC+10420 in the framework of emission models likely to be adequate for such an object. Using the Optical/UV Monitor on board XMM-Newton, we present the very first upper limits of the flux density of IRC +10420 in the UV domain (between 1800 and 2250 Å and between 2050 and 2450 Å). Finally, we also report on the detection in this field of 10 X-ray and 7 UV point sources, and we briefly discuss their properties and potential counterparts at longer wavelengths. [less ▲]Detailed reference viewed: 26 (6 ULg) Les tourbières sont-elles des réservoirs pour les vecteurs de maladies émergentes ? Evaluation des populations de Culicoides (Diptera: Ceratopogonidae) dans la réserve naturelle des Hautes Fagnes (Belgique)Zimmer, Jean-Yves ; Fagot, Jean; Smeets, François et alin Documents de la Station scientifique des Hautes-Fagnes (2014)Detailed reference viewed: 9 (1 ULg) X-ray microtomography: A porosity-based thresholding method to improve soil pore network characterization?Beckers, Eléonore ; Plougonven, Erwan ; Roisin, Christian et alin Geoderma (2014), 219-220X-ray microtomography, through quantification of soil structure at the microscale, could greatly facilitate the current understanding of soil hydrodynamic behaviour. However, binarisation method and ... [more ▼]X-ray microtomography, through quantification of soil structure at the microscale, could greatly facilitate the current understanding of soil hydrodynamic behaviour. However, binarisation method and processing choices are subjective and can have a strong impact on results and conclusions. In this study, we test a new method based on the porosity detectable by X-ray microtomography, while validation is achieved through comparison of soil microtomogram information with soil physical measurements. These measurements consist of water retention and unsaturated hydraulic conductivity using two different soil populations with only structural differences. To assess the porosity-based method performances, we compare it to four other methods, namely the global method of Otsu and three recent soil-dedicated local methods. The robustness of the porosity-based method is also tested in regard to different pre-processing procedures. In this paper we demonstrate that soil segmentation through a porosity-based method is an interesting issue. Indeed, it is less demanding in terms of time and computational requirements than its alternatives, and combines robustness and performances broadly comparable with the recent local methods. [less ▲]Detailed reference viewed: 12 (6 ULg) Communiste, social révolutionnaire, antisémite? D'un usage détourné de la radicalité ouvrière par les mouvements terroristes d'extrême gauche allemands.Jander, Martin; Hamers, Jérémy in Quaderni : la Revue de la Communication (2014)Detailed reference viewed: 25 (2 ULg) tDCS in patients with disorders of consciousness: sham-controlled randomised double blind studyThibaut, Aurore ; Bruno, Marie-Aurélie ; LEDOUX, Didier et alin Neurology (2014)Detailed reference viewed: 9 (0 ULg) Comparaison des populations de Culicoides Latreille 1809 (Diptera: Ceratopogonidae) d’une bergerie belge et d’une prairie ovine associéeZimmer, Jean-Yves ; Losson, Bertrand ; Saegerman, Claude et alin Annales de la Société Entomologique de France (2014)Culicoides biting midges (Diptera: Ceratopogonidae) serve as biological vectors for several pathogens, including the Bluetongue virus and the recently described Schmallenberg virus in northern Europe ... [more ▼]Culicoides biting midges (Diptera: Ceratopogonidae) serve as biological vectors for several pathogens, including the Bluetongue virus and the recently described Schmallenberg virus in northern Europe. These diseases have caused considerable direct and indirect economic losses to the sheep and cattle industries. This study undertaken between August and December 2007 on a sheep farm in the Namur province (Belgium) aims to evaluate Culicoides populations present inside a partially opened sheepfold and in a nearby sheep meadow, using light traps. The comparative analysis of insects trapped at 18 dates at regular intervals showed that Culicoides were most abundant inside this livestock building (17,450 midges) than in surrounding meadow (1,121 midges); this meadow had however a greater species diversity. The two species C. obsoletus and C. scoticus constituting the Obsoletus complex predominated for all trappings and females were much more numerous than males. Important capture of engorged females of the Obsoletus complex inside the sheepfold seems to reflect the possibility of an opportunistic endophagous behavior. Maintaining sheep inside livestock buildings in order to reduce the risk of Culicoides bites – and thus of pathogens transmission – however requires to limit biting midge populations which are likely to enter or to develop inside these buildings. Implementation of effective sanitation and hygiene measures against midges present inside farms, as well as establishing of measures to protect livestock against intrusion and improvement of “midge-proofing” of animal housing are therefore highly recommended. [less ▲]Detailed reference viewed: 13 (0 ULg) CFD-based Compartment model for description of mixing in bioreactorsDelafosse, Angélique ; Calvo, Sébastien ; Collignon, Marie-Laure et alin Chemical Engineering Science (2014), 106In most bioprocesses, it is fundamental to accurately predict the hydrodynamics behavior of bioreactors of different size and its interaction with the biological reaction. Computational Fluid Dynamics can ... [more ▼]In most bioprocesses, it is fundamental to accurately predict the hydrodynamics behavior of bioreactors of different size and its interaction with the biological reaction. Computational Fluid Dynamics can provide detailed modeling about hydrodynamics and mixing. However, it is computationally intensive, especially when reactions are taken into account. Another way to predict hydrodynamics is the use of “Compartment” or “Network-of-zones” model which are much less demanding in computation time than CFD. However, compartments and fluxes between them are often defined by considering global quantities not representative of the flow complexity. To overcome the limitations of these two methods, a solution is to combine compartment modeling and CFD simulations. The aim of this study is to propose a compartment model where the flow rates between two adjacent compartments are easily computed from the velocity fields obtained by CFD. The mixing evolution predicted by the CFD-based compartment model have been then compared with mixing experiment results. Unlike a CFD mixing simulation and a classical compartment model, the CFD-based compartment model proposed in this work reproduces with a good accuracy the spatial distribution of concentrations during the mixing process and this, without any adjustable parameters. [less ▲]Detailed reference viewed: 28 (5 ULg) Systematic optimization of subcritical and transcritical organic Rankine cycles (ORCs) constrained by technical parameters in multiple applicationsMaraver, Daniel; Royo, Javier; Lemort, Vincent et alin Applied Energy (2014), 117The present work is focused on the thermodynamic optimization of organic Rankine cycles (ORCs) for power generation and CHP from different average heat source profiles (waste heat recovery, thermal oil ... [more ▼]The present work is focused on the thermodynamic optimization of organic Rankine cycles (ORCs) for power generation and CHP from different average heat source profiles (waste heat recovery, thermal oil for cogeneration and geothermal). The general goal is to provide optimization guidelines for a wide range of operating conditions, for subcritical and transcritical, regenerative and non-regenerative cycles. A parameter assessment of the main equipment in the cycle (expander, heat exchangers and feed pump) was also carried out. An optimization model of the ORC (available as an electronic annex) is proposed to predict the best cycle performance (subcritical or transcritical), in terms of its exergy efficiency, with different working fluids. The working fluids considered are those most commonly used in commercial ORC units (R134a, R245fa, Solkatherm, n-Pentane, Octamethyltrisiloxane and Toluene). The optimal working fluid and operating conditions from a purely thermodynamic approach are limited by the technological constraints of the expander, the heat exchangers and the feed pump. Hence, a complementary assessment of both approaches is more adequate to obtain some preliminary design guidelines for ORC units. [less ▲]Detailed reference viewed: 42 (2 ULg) Development of a quantitative approach using surface-enhanced Raman chemical imaging: First step for the determination of an impurity in a pharmaceutical modelDe Bleye, Charlotte ; Sacre, Pierre-Yves ; Dumont, Elodie et alin Journal of Pharmaceutical & Biomedical Analysis (2014), 90This publication reports, for the first time, the development of a quantitative approach using surface-enhanced Raman chemical imaging (SER-CI). A pharmaceutical model presented as tablets based on ... [more ▼]This publication reports, for the first time, the development of a quantitative approach using surface-enhanced Raman chemical imaging (SER-CI). A pharmaceutical model presented as tablets based on paracetamol, which is the most sold drug around the world, was used to develop this approach. 4-Aminophenol is the main impurity of paracetamol and is actively researched in pharmaceutical formulations because of its toxicity. As its concentration is generally very low (<0.1%, w/w), conventional Raman chemical imaging cannot be used. In this context, a SER-CI method was developed to quantify 4-aminophenol assessing a limit of quantification below its limit of specification of 1000 ppm. Citrate-reduced silver nanoparticles were used as SERS substrate and these nanoparticles were functionalized using 1-butanethiol. Different ways to cover the tablets surface by butanethiol-functionalized silver nanoparticles were tested and a homogeneity study of the silver nanoparticles covering was realized. This homogeneity study was performed in order to choose the best way to cover the surface of tablets by silver colloid. Afterwards, the optimization of the SER-CI approach was necessary and different spectral intensity normalizations were tested. Finally, a quantitative approach using SER-CI was developed enabling to quantify 4-aminophenol from 0.025% to 0.2% in paracetamol tablets. This quantitative approach was tested on two different series of tablets using different batches of silver nanoparticles. [less ▲]Detailed reference viewed: 24 (12 ULg) Small impact of surrounding oceanic conditions on 2007–2012 Greenland Ice Sheet surface mass balanceNoel, Brice; Fettweis, Xavier ; van de Berg, W.J. et alin Cryosphere Discussions (The) (2014), 8During recent summers (2007–2012), several surface melt records were broken over the Greenland Ice Sheet (GrIS). The extreme summer melt resulted in part from a persistent negative phase of the North ... [more ▼]During recent summers (2007–2012), several surface melt records were broken over the Greenland Ice Sheet (GrIS). The extreme summer melt resulted in part from a persistent negative phase of the North-Atlantic Oscillation (NAO), favouring warmer than normal conditions over the GrIS. In addition, it has been suggested that significant anomalies in sea ice cover (SIC) and sea surface temperature (SST) may partially explain recent anomalous GrIS surface melt. To assess the impact of 2007–2012 SIC and SST anomalies on GrIS surface mass balance (SMB), a set of sensitivity experiments was carried out with the regional climate model MAR. These simulations suggest that changes in SST and SIC in the seas surrounding Greenland do not significantly impact GrIS SMB, due to the katabatic winds blocking effect. These winds are strong enough to prevent oceanic near-surface air, influenced by SIC and SST variability, from penetrating far inland. Therefore, the ice sheet SMB response is restricted to coastal regions, where katabatic winds are weaker. However, anomalies in SIC and SST could have indirectly affected the surface melt by changing the general circulation in the North Atlantic region, favouring more frequent warm air advection to the GrIS. [less ▲]Detailed reference viewed: 10 (0 ULg) Impacts of earthworms on soil components and dynamics. A reviewLemtiri, Aboulkacem ; Colinet, Gilles ; Alabi, Taofic et alin Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014), 18Earthworm populations are important decomposers contributing to aggregate formation and nutrient cycling processes involving nitrogen cycles, phosphorus and carbon. They are known to influence soil ... [more ▼]Earthworm populations are important decomposers contributing to aggregate formation and nutrient cycling processes involving nitrogen cycles, phosphorus and carbon. They are known to influence soil fertility by participating to important processes in soil such as soil structure regulation and organic matter dynamics. Earthworms also modify the microbial communities through digestion, stimulation and dispersion in casts. Consequently, changes in the activities of earthworm communities, as a result of soil management practices, can also be used as indicators of soil fertility and quality. It is therefore important to understand how earthworm communities affect soil dynamics. This review adresses the current state of knowledge on earthworm’s impacts on soil structure and soil organic matter (carbon, nitrogen, and phosphorus) dynamics, with special emphasis on the effects of land management practices on earthworm communities. [less ▲]Detailed reference viewed: 24 (2 ULg) Climate and Security: Evidence, Emerging Risks and a New AgendaGemenne, François ; Adger, Neil; Barnett, Jon et alin Climatic Change (2014)Detailed reference viewed: 32 (2 ULg) Simultaneous determination of seven azole antifungal drugs in serum by ultra-high pressure liquid chromatography and diode array detectionMISTRETTA, Virginie ; DUBOIS, Nathalie ; DENOOZ, Raphael et alin Acta Clinica Belgica (2014), 69(1), 53-61Azole antifungals are a group of fungistatic agents that can be administered orally or parenterally. The determination of the concentrations of these antifungals (miconazole, fluconazole, ketoconazole ... [more ▼]Azole antifungals are a group of fungistatic agents that can be administered orally or parenterally. The determination of the concentrations of these antifungals (miconazole, fluconazole, ketoconazole, posaconazole, voriconazole, itraconazole, and its major active metabolite, hydroxy-itraconazole) in serum can be useful to adapt the doses to pharmacological ranges because of large variability in the absorption and metabolism of the drugs, multiple drug interactions, but also potential resistance or toxicity. A method was developed and validated for the simultaneous determination of these drugs in serum utilizing ultra-high pressure liquid chromatography and diode array detection (UHPLC-DAD). After a simple and rapid liquid– liquid extraction, the pre-treated sample was analysed on an UHPLC-DAD system (Waters CorporationH). The chromatographic separation was carried out on an Acquity BEH C18 column (Waters Corporation) with a gradient mode of mobile phase composed of acetonitrile and aqueous ammonium bicarbonate 10.0 M pH10. The flow rate was 0.4 ml/min and the injection volume was 5 ml. The identification wavelength varied according to the drug from 210 to 260 nm. The method was validated by the total error method approach by using an analytical validation software (eNnoval V3.0 ArlendaH). The seven azole antifungals were identified by retention time and specific UV spectra, over a 13-minute run time. All calibration curves showed good linearity (r2.0.99) in ranges considered clinically adequate. The assay was linear from 0.05 to 10 mg/l for voriconazole, posaconazole, itraconazole, hydroxy-itraconazole, and ketoconazole, from 0.3 to 10 mg/l for fluconazole, and from 0.1 to 10 mg/l for miconazole. The bias and imprecision values for intraand inter-assays were lower than 10% and than 15%, respectively. In conclusion, a simple, sensitive, and selective UHPLC-DAD method was developed and validated to determine seven azole antifungal drugs in human serum. This method is applicable to patient samples, and can be applied successfully to clinical applications and therapeutic drug monitoring. [less ▲]Detailed reference viewed: 6 (5 ULg) Exuberant inflammatory reaction as a side effect of platelet-rich plasma infiltration for treating one case of tendinopathyKaux, Jean-François ; Croisier, Jean-Louis ; LEONARD, Philippe et alin Clinical Journal of Sport Medicine (2014), 24(2), 150-152Platelet-rich plasma (PRP) contains a large quantity of growth factors, which may enhance tendon healing processes. Local infiltration of PRP represents a relatively new treatment for tendinopathies. To ... [more ▼]Platelet-rich plasma (PRP) contains a large quantity of growth factors, which may enhance tendon healing processes. Local infiltration of PRP represents a relatively new treatment for tendinopathies. To date, no side effects have been reported after infiltration of PRP to treat tendinopathy. We reported a case of exuberant inflammatory reaction after one infiltration of PRP to treat jumper’s knee in a type 1 diabetic patient who was 35 years old. Injections of PRP must be proposed after careful consideration for patients with morbidity risks linked to insulin-dependent diabetes. [less ▲]Detailed reference viewed: 60 (11 ULg) Synthèse bibliographique : l'écologie larvaire des culicoïdes (Diptera: Ceratopogonidae)Zimmer, Jean-Yves ; Haubruge, Eric; Francis, Frédéricin Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014), 18Cet article présente une synthèse de l’écologie larvaire des culicoïdes (Diptera: Ceratopogonidae) en vue de rassembler les connaissances, souvent très parsemées, des sites d’oviposition et des habitats ... [more ▼]Cet article présente une synthèse de l’écologie larvaire des culicoïdes (Diptera: Ceratopogonidae) en vue de rassembler les connaissances, souvent très parsemées, des sites d’oviposition et des habitats larvaires actuellement identifiés à travers le monde pour les principales espèces de culicoïdes. Ces moucherons piqueurs hématophages sont impliqués dans la transmission de divers parasites (protozoaires et filaires) et virus aux animaux. Le développement larvaire des culicoïdes est généralement optimal dans les substrats humides et riches en débris organiques divers. Cependant, chaque espèce présente ses propres exigences écologiques et fréquente par conséquent des micro-habitats spécifiques. Dans cette synthèse, les gîtes larvaires sont répartis en substrats aquatiques et semi-aquatiques d’eau douce (I) et d’eau salée ou saumâtre (II), substrats terrestres (III) & substrats anthropiques liés à l’élevage (IV). Les gîtes larvaires de nombreuses espèces appartenant au genre Culicoides Latreille demeurent cependant encore méconnus. La connaissance de ces derniers et leur caractérisation sont pourtant essentielles pour permettre la mise au point de stratégies de lutte efficaces contre ces insectes vecteurs, permettant ainsi de renforcer la vaccination du bétail et les autres moyens de lutte mis en œuvre. Les habitats larvaires actuellement identifiés pourraient permettre d’orienter les investigations des recherches écologiques futures et les propositions de contrôle de ces moucherons vecteurs. [less ▲]Detailed reference viewed: 20 (3 ULg) Introduction : Visions du Paradis/Visions of paradiseMelice, Anne ; Van Wolputte, Steven; Pype, Katrienin Social Compass (2014), 61 (1)Detailed reference viewed: 14 (0 ULg) Compte rendu : Émile Gilliard, Défense et promotion de la langue wallonne. Conférences et communications de 1964 à 2013Baiwir, Esther in Francophonie vivante (2014), 54/1Detailed reference viewed: 18 (5 ULg) Mineralogical and geotechnical characterization of clays from Northern Morocco for their potential use in ceramic industryEl Ouahabi, Meriam ; Daoudi, Lahcen; Fagel, Nathalie in Clay Minerals (2014), 49This study focuses on the mineralogical and geotechnical characterization of Northern Morocco clays (i.e., from Tangier and Tetouan areas) and further comparison with main clay ores used in national ... [more ▼]This study focuses on the mineralogical and geotechnical characterization of Northern Morocco clays (i.e., from Tangier and Tetouan areas) and further comparison with main clay ores used in national ceramic (i.e., from Meknes, Fes, Salé and Safi regions). Sampled clays were analyzed by X-ray diffraction on bulk and clay (< 2 µm) fractions to identify the mineralogical assemblages of the clay outcrops. Further analyses were conducted to determine the particle size distribution (laser diffraction particle analyser), the total organic matter content (from LossOnIgnition measurements) and the Atterberg limits of the raw clays. The aims of this study were first to investigate the spatial variability of the clay samples and second to evaluate their potential application as raw materials in ceramic industry. Tetouan and Tangier clays are characterized by diversified mineralogical assemblages (in particular a variable proportion of clay, quartz and calcite) in regard with Meknes, Fes, Salé and Safi clays (high clay content, quartz and calcite). The clay fraction of Tetouan and Tangier samples is dominated by illite and kaolinite with variable contribution of chlorite, smectite and/or vermiculite. Illite is the dominant phase in Meknes, Fes, Safi and Salé clays, but is associated with kaolinite. There is no direct relationship between the mineral assemblage composition and the lithology of the series. The studied clays materials consist generally in fine particles with medium to high plasticity and low organic matter content. Taking into account mineralogy, grain-size distribution and plasticity those clays seem to be suitable as raw material for the growing Morocco ceramic industry. [less ▲]Detailed reference viewed: 30 (12 ULg) Interview: Rosalind Hackett reflects on religious media in AfricaMelice, Anne ; Hackett, Rosalind; Van Wolputte, Steven et alin Social Compass (2014), 61 (1)Detailed reference viewed: 17 (1 ULg) Interview: Rosalind Hackett reflects on religious media in AfricaMelice, Anne ; Hackett, Rosalind; Van Wolputte, Steven et alin Social Compass (2014), 61 (1)Detailed reference viewed: 17 (1 ULg) Precision design of ethylene- and polar-monomerbased copolymers by organometallic-mediated radical polymerizationKermagoret, Anthony ; Debuigne, Antoine ; Jérôme, Christine et alin Nature Chemistry (2014), 6(3), 179-187The copolymerization of ethylene with polar monomers is a major challenge when it comes to the manufacture of materials with potential for a wide range of commercial applications. In the chemical industry ... [more ▼]The copolymerization of ethylene with polar monomers is a major challenge when it comes to the manufacture of materials with potential for a wide range of commercial applications. In the chemical industry, free-radical polymerization is used to make a large proportion of such copolymers, but the forcing conditions result in a lack of fine control over the architecture of the products. Herein we introduce a synthetic tool, effective under mild experimental conditions, for the precision design of unprecedented ethylene- and polar-monomer-based copolymers. We demonstrate how an organocobalt species can control the growth of the copolymer chains, their composition and the monomer distribution throughout the chain. By fine tuning the ethylene pressure during polymerization and by exploiting a unique reactive mode of the end of the organometallic chain, novel block-like copolymer structures can be prepared. This highly versatile synthetic platform provides access to a diverse range of polymer materials. [less ▲]Detailed reference viewed: 31 (10 ULg) Climatological study of ionospheric irregularities over the European mid-latitude sector with GPSWautelet, Gilles ; Warnant, René in Journal of Geodesy (2014), 88(3), 223-240High-frequency variability of the ionosphere, or irregularities, constitutes the main threat for real-time precise positioning techniques based on Global Navigation Satellite Systems (GNSS) measurements ... [more ▼]High-frequency variability of the ionosphere, or irregularities, constitutes the main threat for real-time precise positioning techniques based on Global Navigation Satellite Systems (GNSS) measurements. Indeed, during periods of enhanced ionospheric variability, GNSS users in the field – who cannot verify the integrity of their measurements – will experience positioning errors that can reach several decimeters, while the nominal accuracy of the technique is cm-level. In the frame of this paper, a climatological analysis of irregularities over the European mid-latitude region is presented. Based on a ten year GPS dataset over Belgium, the work analyzes the occurrence rate (as a function of the solar cycle, season and local time) as well as the amplitude of ionospheric irregularities observed at a single GPS station. The study covers irregularities either due to space weather events (solar origin) or of terrestrial origin. If space weather irregularities are responsible for the largest effects in terms of ionospheric error, their occurrence rate highly depends on solar activity. Indeed, the occurrence rate of ionospheric irregularities is about 9% during solar maximum, whereas it drops to about 0% during medium or low solar activity periods. Medium-Scale Ionospheric Disturbances (MSTIDs) occurring during daytime in autumn/winter are the most recurrent pattern of the time series, with yearly proportions slightly varying with the solar cycle and an amplitude of about 10% of the TEC background. Another recurrent irregularity type, though less frequent than MSTIDs, is the noise-like variability in TEC observed during summer nighttime, under quiet geomagnetic conditions. These summer nighttime irregularities exhibit amplitudes ranging between 8 and 15% of the TEC background. [less ▲]Detailed reference viewed: 32 (12 ULg) L'imaginaire politique de la théorie de l'énonciationProvenzano, François in Langage et Société (2014), 147Detailed reference viewed: 11 (1 ULg) Introduction : Visions du Paradis/Visions of paradiseMelice, Anne ; Van Wolputte, Steven; Pype, Katrienin Social Compass (2014), 61 (1)Detailed reference viewed: 14 (0 ULg) Vers une synthèse de la conception et une définition des zones dans le gradient urbain-ruralAndre, Marie ; Mahy, Grégory ; Lejeune, Philippe et alin Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014), 18(1), The increasing footprint of urbanization on landscapes justifies the study of cities and the zones surrounding them. Paradoxically, the concepts relating to these zones remain unclear. Scientists from ... [more ▼]The increasing footprint of urbanization on landscapes justifies the study of cities and the zones surrounding them. Paradoxically, the concepts relating to these zones remain unclear. Scientists from different disciplines diverge when defining these zones or their limits; they even often mention the zones without any definition. This practice excludes comparison between studies. By means of bibliographic research, the variety of terms used to describe the different zones composing the urban-rural gradient has been evidenced, as well as the characteristics of the zones themselves. They have been evaluated according to their relative importance and according to a series of criteria. Finally, new definitions for the different zones have been proposed in order to enable their identification in the field. [less ▲]Detailed reference viewed: 40 (11 ULg) (Re-)Assessing Career Patterns in Multi-Level Systems: Insights from Wallonia in BelgiumDodeigne, Jérémy in Regional & Federal Studies (2014)This article proposes a new analytical framework for the study of political careers in multi-level systems. It is argued that the study of vertical movements between political arenas, which constitutes ... [more ▼]This article proposes a new analytical framework for the study of political careers in multi-level systems. It is argued that the study of vertical movements between political arenas, which constitutes the prevalent methodological approach in the literature on political careers, should be complemented by the study of horizontal movements within political arenas. Based on a longitudinal analysis of individual political careers, the micro-approach developed in this article allows the comprehension of all territorial dynamics of political careers in multi-level systems. Based on an in-depth case study of all 419 Walloon careers in Belgium, four career patterns are identified: national careers, regional careers, multi-level careers and discrete careers. Although Belgium presents an integrated structure of opportunity, it is demonstrated that key evidences underline the prevalence of a regional and a national political class along a highly integrated political elites. [less ▲]Detailed reference viewed: 15 (2 ULg) Climate and Security: Evidence, Emerging Risks and a New AgendaGemenne, François ; Barnett, Jon; Adger, W. Neil et alin Climatic Change (2014), 123(1), 1-9Detailed reference viewed: 7 (0 ULg) Glucose-, pH- and thermo-responsive nanogels crosslinked by functional superparamagnetic maghemite nanoparticles as innovative drug delivery systemsLiu, Ji ; Detrembleur, Christophe ; Debuigne, Antoine et alin Journal of Materials Chemistry B (2014), 2(8), 1009-1023Reversibly crosslinked (RCL) nanogels made of thermo-responsive poly(vinyl alcohol)-b-poly(Nvinylcaprolactam) copolymers were combined with maghemite nanoparticles and developed as new drug delivery ... [more ▼]Reversibly crosslinked (RCL) nanogels made of thermo-responsive poly(vinyl alcohol)-b-poly(Nvinylcaprolactam) copolymers were combined with maghemite nanoparticles and developed as new drug delivery systems (DDS). The crosslinking was formed via boronate/diol bonding from the surfacefunctionalized superparamagnetic maghemite nanoparticles, endowing the DDS with thermo-, pH- and glucose-responsiveness. The capability to load a hydrophobic drug model Nile red (NR) within the RCL nanogels was evaluated, and stimuli-triggered drug release behaviours under different conditions were tested. Zero premature release behaviour was detected at physiological pH in the absence of glucose, whereas triggered release was observed upon exposure to acidic pH (5.0) and/or in the presence of glucose. In light of the superparamagnetic properties of the maghemite nanoparticles and RCL nanogels, magnetically-induced heating, MR imaging performance, as well as remotely magnetically-triggered drug release under alternating magnetic field (AMF), were investigated. Cytotoxicity against fibroblast-like L929 and human melanoma MEL-5 cell lines was assessed via the MTS assay. In vitro stimuli-triggered release of tamoxifen, a chemotherapeutic drug, was also studied within MEL-5 cell cultures under different conditions. These innovative RCL nanogels, integrating different stimuli-responsive components, hydrophobic chemotherapeutic moieties and also diagnostic agents together via reversible crosslinking, are promising new theranostic platforms. [less ▲]Detailed reference viewed: 24 (10 ULg) Chitosan nanoparticles for siRNA delivery: Optimizing formulation to increase stability and efficiencyRagelle, Héloïse; Riva, Raphaël ; Vandermeulen, G. et alin Journal of Controlled Release (2014), 176This study aims at developing chitosan-based nanoparticles suitable for an intravenous administration of small interfering RNA (siRNA) able to achieve (i) high gene silencing without cytotoxicity and (ii ... [more ▼]This study aims at developing chitosan-based nanoparticles suitable for an intravenous administration of small interfering RNA (siRNA) able to achieve (i) high gene silencing without cytotoxicity and (ii) stability in biological media including blood. Therefore, the influence of chitosan/tripolyphosphate ratio, chitosan physicochemical properties, PEGylation of chitosan as well as the addition of an endosomal disrupting agent and a negatively charged polymer was assessed. The gene silencing activity and cytotoxicity were evaluated on B16 melanoma cells expressing luciferase. We monitored the integrity and the size behavior of siRNA nanoparticles in human plasma using fluorescence fluctuation spectroscopy and single particle tracking respectively. The presence of PEGylated chitosan and poly(ethylene imine) was essential for high levels of gene silencing in vitro. Chitosan nanoparticles immediately released siRNA in plasma while the inclusion of hyaluronic acid and high amount of poly(ethylene glycol) in the formulation improved the stability of the particles. The developed formulations of PEGylated chitosan-based nanoparticles that achieve high gene silencing in vitro, low cytotoxicity and high stability in plasma could be promising for intravenous delivery of siRNA. [less ▲]Detailed reference viewed: 11 (3 ULg) compte rendu de Paul Schubert, Pierre Ducrey, Pascale Derron (ed.), Les Grecs héritiers des Romains : huit exposés suivis de discussions. Entretiens sur l’Antiquité classique, 59. Vandoeuvres; Genève: Fondation Hardt, 2013. Pp. viii, 380; 16 p. of plates. ISBN 9782600007597. CHF 78.00.Rochette, Bruno in Bryn Mawr Classical Review [=BMCR] (2014)Detailed reference viewed: 19 (0 ULg) Improving halva quality with dietary fibres of sesame seed coats and date pulp, enriched with emulsifierElleuch, Mohamed; Bedigian, Dorothea; Maazoun, Bouthaina et alin Food Chemistry (2014), 145Supplementation of halva with waste products of manufacturing, for example defatted sesame seed coats (testae) and date fibre concentrate, can improve its nutritional and organoleptic qualities. These ... [more ▼]Supplementation of halva with waste products of manufacturing, for example defatted sesame seed coats (testae) and date fibre concentrate, can improve its nutritional and organoleptic qualities. These constituents provide high fibre content and technological potential for retaining water and fat. Standard halva supplemented with date fibre concentrate, defatted sesame testae and emulsifier was evaluated for oil separation, texture and colour changes, sensory qualities and acceptability to a aste panel. Addition of both fibres with an emulsifier, improved emulsion stability and increased the hardness of halva significantly. The functional properties of sesame testae and date fibres promote nutrition and health, supplying polyphenol antioxidants and laxative benefits. [less ▲]Detailed reference viewed: 19 (0 ULg) Combining PET images and neuropsychological test data for automatic diagnosis of Alzheimer’s diseaseSegovia-Román, Fermín ; Bastin, Christine ; Salmon, Eric et alin PLoS ONE (2014)In recent years, several approaches to develop computer aided diagnosis (CAD) systems for dementia have been proposed. Some of these systems analyze neurological brain images by means of machine learning ... [more ▼]In recent years, several approaches to develop computer aided diagnosis (CAD) systems for dementia have been proposed. Some of these systems analyze neurological brain images by means of machine learning algorithms in order to find the patterns that characterize the disorder, and a few combine several imaging modalities to improve the diagnostic accuracy. However, they usually do not use neuropsychological testing data in that analysis. The purpose of this work is to measure the advantages of using not only neuroimages as data source in CAD systems for dementia but also neuropsychological scores. To this aim, we compared the accuracy rates achieved by systems that use neuropsychological scores beside the imaging data in the classification step and systems that use only one of these data sources. In order to address the small sample size problem and facilitate the data combination, a dimensionality reduction step (implemented using three different algorithms) was also applied on the imaging data. After each image is summarized in a reduced set of image features, the data sources were combined and classified using three different data combination approaches and a Support Vector Machine classifier. That way, by testing different dimensionality reduction methods and several data combination approaches, we aim not only highlighting the advantages of using neuropsychological scores in the classification, but also implementing the most accurate computer system for early dementia detention. The accuracy of the CAD systems were estimated using a database with records from 46 subjects, diagnosed with MCI or AD. A peak accuracy rate of 89% was obtained. In all cases the accuracy achieved using both, neuropsychological scores and imaging data, was substantially higher than the one obtained using only the imaging data. [less ▲]Detailed reference viewed: 32 (3 ULg) Gold nanorods coated with a thermo-responsive poly(ethylene glycol)-b-poly(N-vinylcaprolactam) corona as drug delivery systems for remotely near infrared-triggered releaseLiu, Ji ; Detrembleur, Christophe ; De Pauw, Marie-Claire et alin Polymer Chemistry (2014), 5(3), 799-813Poly(ethylene glycol)-b-poly(N-vinylcaprolactam) (PEG-b-PNVCL) copolymers are prepared from a PEG macro-chain transfer agent in DMF at 65 °C via reversible addition-fragmentation chain transfer (RAFT ... [more ▼]Poly(ethylene glycol)-b-poly(N-vinylcaprolactam) (PEG-b-PNVCL) copolymers are prepared from a PEG macro-chain transfer agent in DMF at 65 °C via reversible addition-fragmentation chain transfer (RAFT) polymerization. The well-defined PEG114-b-PNVCL237 copolymer with a cloud point temperature of 39 °C is used for the formation of a thermo-responsive polymer corona on the surface of gold nanorods (GNRs) via a “grafting-to” approach. Thermo-responsiveness and thermo-dependent optical properties of the as-obtained GNR@PEG-b-PNVCL nanoparticles are studied with dynamic light scattering and UV/vis spectroscopy techniques. Near infrared (NIR)-induced heating of GNR@PEG-b-PNVCL is also explored in aqueous suspension under NIR laser irradiation (802 nm, up to 250 mW). The potential of these GNR@PEG-b-PNVCL nanoparticles to be used as smart drug delivery systems (DDS) is then studied. A hydrophilic drug model, Rhodamine ® B, is used to assess the guest loading capacity, and triggered release behaviours are then evaluated under conventional external heating or internal heating induced by remote NIR irradiation. Cytotoxicity evaluation of the GNR@PEG-b-PNVCL against the fibroblast-like L929 cell line is carried out via the MTS assay in order to confirm the improved biocompatibility of the GNRs after polymer coating. These thermo-responsive GNR@PEG-b-PNVCL nanoparticles are promising DDS that combine the chemotherapeutic and phototherapeutic functions. [less ▲]Detailed reference viewed: 33 (10 ULg) Is dark matter made of mirror matter? Evidence from cosmological dataCiarcelluti, Paolo; Wallemacq, Quentin in Physics Letters B (2014), 729We present new fast numerical simulations of cosmic microwave background and large scale structure in the case in which the cosmological dark matter is made entirely or partly of mirror matter. We ... [more ▼]We present new fast numerical simulations of cosmic microwave background and large scale structure in the case in which the cosmological dark matter is made entirely or partly of mirror matter. We consider scalar adiabatic primordial perturbations at linear scales in a flat Universe. The speed of the simulations allows us for the first time to use Markov Chain Monte Carlo analyses to constrain the mirror parameters. A Universe with pure mirror matter can fit very well the observations, equivalently to the case of an admixture with cold dark matter. In both cases, the analyses show a clear indication of the presence of a consistent amount of mirror dark matter, 0.05 < Ω_{mirror} h^2 < 0.12. [less ▲]Detailed reference viewed: 34 (7 ULg) Transnational modelling of the Meuse District with PegOpera simulation softwareGrard, Aline ; Everbecq, Etienne ; MAGERMANS, POL et alin International Journal of River Basin Management (2014)The environmental software PEGOPERA is a new tool resulting from the coupling of the PEGASE model (Planification Et Gestion de l’ASsainissement des Eaux, French acronym for planning and management of ... [more ▼]The environmental software PEGOPERA is a new tool resulting from the coupling of the PEGASE model (Planification Et Gestion de l’ASsainissement des Eaux, French acronym for planning and management of water purification) with a friendly Graphical User Interface. PEGASE is an integrated and physically based river/basin model and is devoted to the characterisation of the physico-chemical state of surface water, at the scale of a whole watershed or basin, including International River Basin District (IRBD). The aim of the model is to simulate non stationary scenarios at various scales (from a few km² to hundreds of thousands km²) while handling the entire river tree (hundreds to thousands of water bodies). The purpose of PEGOPERA is to provide the stakeholders - as regards to surface water management - with a tool dedicated to the deterministic calculation of water quality of the rivers taking into account pollutant loads and discharges. In the context of the Water Framework Directive 2000/60/EC, the international coordination between neighbouring states and regions is required. The PEGOPERA software is adapted to simulate the IRBD Meuse. Indeed: i. An integrated transnational database relevant to the entire district is available; ii. The software is operational: the Meuse application has been calibrated and validated independently on most of regional sub-basins of the district; iii. The software could be used to simulate historical and future scenarios to assess water quality improvement that may be expected after applying basic and supplementary measures. The results demonstrate the relevance of the use of this software in this kind of transnational modelling. Some regions of the International District of the Meuse are validated on historical situations. Other parts still need to be improved in terms of consolidating the input databases. Prospective scenarios implementing measures from the WFD are carried out at this District scale. [less ▲]Detailed reference viewed: 28 (19 ULg)