Last 7 days     Results 61-80 of 4180.   1 2 3 4 5 6 7 8 9   Les conceptions des futurs enseignants du secondaire en matière d’évaluation: entre un accord de principe et une vision limitée de l’évaluation formativeFagnant, Annick ; Goffin, Christelle in Mesure et Evaluation en Education (in press), 40(1), Detailed reference viewed: 13 (0 ULg) Book review of Anne C Witt, The more economic approach to EU antitrust law. Oxford: Hart Publishing, 2016. 384 pages. ISBN: 9781849466967Van Cleynenbreugel, Pieter in Common Market Law Review (in press), 54(5), Detailed reference viewed: 15 (0 ULg) Probabilistic Reliability Management Approach and Criteria for Power System Short-term Operational PlanningKarangelos, Efthymios ; Wehenkel, Louis in Probabilistic Reliability Management Approach and Criteria for Power System Short-term Operational Planning (in press)This paper develops a probabilistic decision making framework for reliability management in the short-term operational planning context. We build upon our recent work, which proposed a probabilistic ... [more ▼]This paper develops a probabilistic decision making framework for reliability management in the short-term operational planning context. We build upon our recent work, which proposed a probabilistic reliability management approach and criterion (RMAC) for the latest decision making opportunity of real-time system operation. Here, we transpose the RMAC to the preceding problem instance of short-term operational planning, wherein i) risk is aggravated by the uncertainty on power injections and weather conditions, and, ii) the problem scope concerns choosing strategic' actions (e.g., starting additional generating units, granting outage requests for maintenance, etc.) to facilitate decision making during the forthcoming real-time system operation. To anticipate on the latter, we formalize the notion of a real-time proxy' as a simplified model of the real-time decision making context, adequately accurate for the purpose of operational planning decision making. Stating a first proposal for such a proxy, we mathematically formulate the RMAC for short-term operational planning as a multi-stage stochastic decision making problem and demonstrate its main features by case studies on a modified version of the single area IEEE RTS-96 system. [less ▲]Detailed reference viewed: 34 (3 ULg) Deep imaging search for planets forming in the TW Hya protoplanetary disk with the Keck/NIRC2 vortex coronagraphRuane, G.; Mawet, D.; Kastner, J. et alin Astronomical Journal (The) (in press)Distinct gap features in the nearest protoplanetary disk, TW Hya (distance of 59.5$\pm$0.9 pc), may be signposts of ongoing planet formation. We performed long-exposure thermal infrared coronagraphic ... [more ▼]Distinct gap features in the nearest protoplanetary disk, TW Hya (distance of 59.5$\pm$0.9 pc), may be signposts of ongoing planet formation. We performed long-exposure thermal infrared coronagraphic imaging observations to search for accreting planets especially within dust gaps previously detected in scattered light and submm-wave thermal emission. Three nights of observations with the Keck/NIRC2 vortex coronagraph in $L^\prime$ (3.4-4.1$\mu$m) did not reveal any statistically significant point sources. We thereby set strict upper limits on the masses of non-accreting planets. In the four most prominent disk gaps at 24, 41, 47, and 88 au, we obtain upper mass limits of 1.6-2.3, 1.1-1.6, 1.1-1.5, and 1.0-1.2 Jupiter masses ($M_J$) assuming an age range of 7-10 Myr for TW Hya. These limits correspond to the contrast at 95\% completeness (true positive fraction of 0.95) with a 1\% chance of a false positive within $1^{\prime\prime}$ of the star. We also approximate an upper limit on the product of planet mass and planetary accretion rate of $M_p\dot{M}\lesssim10^{-8} M_J^2/yr$ implying that any putative $\sim0.1 M_J$ planet, which could be responsible for opening the 24 au gap, is presently accreting at rates insufficient to build up a Jupiter mass within TW Hya's pre-main sequence lifetime. [less ▲]Detailed reference viewed: 19 (3 ULg) Visualiser la variation et le changement valenciel: structure des compléments datifs dans l’histoire du françaisMazziotta, Nicolas in Linguisticae Investigationes (in press)Il est possible de modéliser la variation et le changement valenciel à l'aide des structures formelles que nous nommons _polygraphes_. Ces derniers étendent les arbres syntaxiques dépendanciels en ... [more ▼]Il est possible de modéliser la variation et le changement valenciel à l'aide des structures formelles que nous nommons _polygraphes_. Ces derniers étendent les arbres syntaxiques dépendanciels en autorisant des relations à porter sur d'autres relations. En prenant l'exemple de l'expression prépositionnelle ou non du datif en ancien français et en français moderne (complément des verbes _donner_, _aider_, et _pardonner_), nous montrons comment les polygraphes peuvent être employés pour montrer géométriquement la différence entre une préposition obligatoire et une préposition facultative. Le potentiel de ces structures permet également de visualiser l'évolution et de comparer le comportement des lexèmes. [less ▲]Detailed reference viewed: 13 (0 ULg) Approaches to grammaticalization and lexicalizationBrems, Lieselotte ; Hoffmann, Sebastianin Brinton, Laurel (Ed.) English historical linguistics: approaches and perspectives (in press)Detailed reference viewed: 17 (2 ULg) Tonian (Neoproterozoic) eukaryotic and prokaryotic organic-walled microfossils from the upper Visingsö Group, SwedenLoron, Corentin ; Moczydłowska, Małgorzatain Palynology (in press)Detailed reference viewed: 15 (2 ULg) KIAA1199: a novel regulator of MEK/ERK-induced Schwann cell dedifferentiationBoerboom, Angelique; Reusch, Céline ; Pieltain, Alexandra et alin Glia (in press)Detailed reference viewed: 24 (3 ULg) An overview of the recent advances performed in the study of atomic structures and radiative processes in the lowest ionization stages of heavy elementsQuinet, Pascal in Canadian Journal of Physics (in press)Detailed reference viewed: 14 (1 ULg) Familiennamen zwischen Maas und RheinMöller, Robert in Rheinische Vierteljahrsblätter (in press)Detailed reference viewed: 24 (0 ULg) Deutsch in Ostbelgien – ostbelgisches Deutsch ?Möller, Robert in Davies, Wini; Häcki-Buhofer, Annelies; Schmidlin, Regula (Eds.) et al Plurizentrik des Deutschen zwischen Norm und Praxis (in press)Detailed reference viewed: 27 (0 ULg) Psychopathologie phénoménologique : Apports contemporains et défis futursEnglebert, Jérôme in Neurone (in press)Detailed reference viewed: 33 (1 ULg) Effect of feed enzymes on digestibility and growth in weaned pigs: A systematic review and meta-analysisTorres-Pitarch, Alberto; Hermans, David; Manzanilla, Edgar Garcia et alin Animal Feed Science & Technology (in press)Supplementation of post-weaning diets with exogenous enzymes has been suggested to control post-weaning syndrome, by compensating for the under-developed endogenous enzyme secretory capacity and ... [more ▼]Supplementation of post-weaning diets with exogenous enzymes has been suggested to control post-weaning syndrome, by compensating for the under-developed endogenous enzyme secretory capacity and increasing nutrient digestibility in newly weaned pigs. The effect of in-feed enzymes in improving gut maturation, growth and/or health in weaned piglets is not always consistent. A systematic review and a meta-analysis were therefore conducted to determine which exogenous enzymes are most consistent in improving piglet growth and digestibility when supplemented to post-weaning diets. The mean difference effect of enzyme supplementation on growth and digestibility of dry matter (DM), gross energy (GE), crude protein (CP), and P digestibility was calculated for each study and this was used as the effect size estimate in the meta-analysis. The impact of feed enzyme supplementation on intestinal health and bone mineralization was also discussed where information was available in the literature. From a total of 90 studies included in the metaanalysis, G:F was improved in 55, remained un-changed in 28 and deteriorated in 7, in response to enzyme supplementation. Average daily gain, average daily feed intake (ADFI) and G:F was improved when phytase was supplemented in the diet. Phosphorous digestibility was increased with phytase supplementation while GE digestibility was reduced. Dietary phytase supplementation increased bone mineralization in pigs fed diets with a reduced Pcontent. Supplementation with multi-enzyme complexes increased DM and CP digestibility. In conclusion, the most consistent improvement in piglet growth, P digestibility and bone mineralization were found due to exogenous phytase supplementation. Supplementation with xylanase alone or in combination with β-glucanase had inconsistent effects on piglet growth and nutrient digestibility. The most consistent improvements in growth and nutrient digestibility due to supplementation with multi-enzymes complexes were found when mannanase and/or protease were included in the complex. [less ▲]Detailed reference viewed: 31 (3 ULg) Elucidating the mechanisms driving the ageing of porous hollow PtNi/C nanoparticles by the means of COads strippingAsset, Tristan ; Chattot, Raphaël; Drnec, Jakub et alin ACS Materials & Interfaces (in press)Detailed reference viewed: 10 (0 ULg) Urethral intussusception following traumatic catheterization in a male catBroux, Olivier ; Vangrinsven, Emilie ; Etienne, Anne-Laure et alin Canadian Veterinary Journal = Revue Vétérinaire Canadienne (in press)Detailed reference viewed: 22 (2 ULg) Endotracheal tube obstruction during endoscopy improves dynamic sliding hiatal hernia detection in dogs with brachycephalic syndromeBroux, Olivier ; Clercx, Cécile ; Etienne, Anne-Laure et alin Veterinary Surgery : The Official Journal of the American College of Veterinary Surgeons (in press)Detailed reference viewed: 27 (2 ULg) The Potential of Digital Tools and Technologies in Architectural Heritage Research for an Inclusive Approach to Built HeritageEisazadeh, Negin ; Houbart, Claudine ; Hallot, Pierre et alConference (in press)In recent years, inclusive design (a.k.a. universal design or design for all) is one of the developed approaches which aim to consider the diverse human abilities and conditions in the design process. As ... [more ▼]In recent years, inclusive design (a.k.a. universal design or design for all) is one of the developed approaches which aim to consider the diverse human abilities and conditions in the design process. As defined by the European Institute for Design and Disability (EIDD) ‘design for all’ is designing for diversity, social inclusion and equality. Considering the social and demographic changes in the 21st century, which include an international movement towards social inclusion and more specifically the rights of disabled people, an inclusive approach is turning into a necessity for today’s diverse and ageing society. In the case of architectural and urban heritage, the disabled people or in better words those with diverse sensory, mental or mobility abilities who differ from the general public, have the right to experience, interact with, and engage with heritage and its values. As part of an extensive interdisciplinary research on inclusive approaches to built heritage values, which connects the fields of architecture, history, conservation, inclusive design, and digital humanities, this paper investigates the potentials of incorporating digital tools and techniques in the different aspects of this research. The extensive study involves communication between researchers, relevant professional experts, and the historic built environment with the target community of disabled people and in this paper, the digital means to facilitate these interactions have been studied. As a step towards answering the question ‘what are suitable methods and tools for facilitating and acquiring insight into diversely abled people’s engagement with and understanding of architectural heritage and its values?’, it more specifically focuses on the interaction of the disabled people with the historic architecture and urban spaces. Additionally, in a more general approach, by linking the fields of digital humanities and architectural research, the existing tools for the different stages of research ranging from data collection and storage, data analysis, and dissemination are explored. By conducting and elaborating relevant research examples, this study shows how incorporating digital tools and techniques derived from Digital Humanities - such as retrieving data through APIs, textual analysis, creating and querying databases, and data visualization - can facilitate research in the field of architecture and built heritage. Moreover, in studying the relation between disability and the historic built environment, it indicates that acquiring knowledge on the potentials in practical digital tools for disabled people’s interaction with the built heritage, can have a significant impact on the research approach and findings. As for an inclusive approach to built heritage, the disabled people can be taken into account with their prospective extended digital abilities. Hence in today’s digital world, integrating the digital tools and technologies in architectural heritage research is not only a necessary practical mean for conducting research, but can also impact the theoretical approach, allowing to carry out extensive and innovative research in an efficient manner. [less ▲]Detailed reference viewed: 46 (17 ULg) A push–pull strategy to control aphids combines intercropping with semiochemical releasesXu, Qingxuan ; Hatt, Séverin ; Chevalier Mendes Lopes, Thomas et alin Journal of Pest Science (in press)Even if insect pest populations can be reduced by increasing plant diversity through intercropping, natural enemies are not always favored in such systems. Alternatively, semiochemical substances have ... [more ▼]Even if insect pest populations can be reduced by increasing plant diversity through intercropping, natural enemies are not always favored in such systems. Alternatively, semiochemical substances have been tested to enhance biological control, with inconsistent results. Combining both strategies can be an interesting way to maximize pest control. In this work, a 2-year setup involving wheat–pea strip intercropping combined with the release of E-b-farnesene (EBF) or methyl salicylate (MeSA) was tested as a push–pull strategy to simultaneously repel aphids and attract beneficials. Two types of slow-release formulation (i.e., oil and alginate beads) containing EBF or MeSA were deployed with the intercropping. The abundance of aphids was significantly decreased, while hoverfly larvae and mummified aphids increased on both pea plants and wheat tillers by the release of oil-formulated EBF and MeSA. The proportion parasitism of the aphid-parasitism rate [mummies/(aphids + mummies)] was also increased by treating both crops in both years. Releasing EBF through oil rather than alginate beads proved significantly better for attracting natural enemies and reducing aphids. Aphids were negatively correlated with the density of hoverflies (both adults and larvae) and numbers of mummies. All these results showed that combining intercropping with the release of EBF or MeSA formulated in oil can significantly reduce aphid density and attract their natural enemies. Therefore, the combination of both strategies could help farmers reduce the use of insecticides. [less ▲]Detailed reference viewed: 29 (6 ULg) Protein requirements of collared peccary (Pecari tajacu)Borges, Rogerio; Mendes, Alcester; Nogueira, Selene et alin Tropical Animal Health and Production (in press)A nitrogen (N) balance digestion trial was conducted to determine the protein requirement of collared peccaries (Pecari tajacu). In a 4 × 4 Latin square design, four captive adult male peccaries were fed ... [more ▼]A nitrogen (N) balance digestion trial was conducted to determine the protein requirement of collared peccaries (Pecari tajacu). In a 4 × 4 Latin square design, four captive adult male peccaries were fed four isoenergy diets containing four different levels of N (11.7, 16.3, 22.8, and 26.7 g N/kg of dry matter—DM). After 15 days of adaptation, a total collection of feces and urine was carried out for five consecutive days. Regression analyses between N intake and N in feces and urine allowed to calculate the metabolic fecal nitrogen (MFN = 2.3 g N/kg of dry matter intake—DMI) and daily endogenous urinary N (EUN = 185 mg N/kg0.75). Likewise, by regression analyses between consumption of nitrogen and the nitrogen balance (NB = N ingested − N excreted, mg N/kg0.75), a daily requirement of 514 mg N/kg0.75 was calculated. Therefore, if food intake is unrestricted, collared peccaries require a minimumin their diet of about 5.4% crude protein on DM basis. These values are almost as low as those found for browsing and frugivorous wild ruminants, which reinforce the proposition that peccaries’ digestive physiology is nearer to that of domestic and wild ruminants than domestic pigs. This relatively low protein requirement of collared peccary and its great ability to digest protein reveal the relevance of the forestomach for the species on nitrogen/protein metabolism and allow the use of diets with lower crude protein levels than the commercial ones used for the domestic pig, which reduces feed costs. [less ▲]Detailed reference viewed: 24 (4 ULg) Searching for Plausible N-k Contingencies Endangering Voltage StabilityWeckesser, Johannes ; Van Cutsem, Thierry in IEEE International Conference on Innovative Smart Grid Technologies IEEE ISGT Europe 2017, Turin 26-29 September 2017 (in press)This paper presents a novel search algorithm using time-domain simulations to identify plausible N-k contingencies endangering voltage stability. Starting from an initial list of disturbances ... [more ▼]This paper presents a novel search algorithm using time-domain simulations to identify plausible N-k contingencies endangering voltage stability. Starting from an initial list of disturbances, progressively more severe contingencies are investigated. After simulation of a N-k contingency, the simulation results are assessed. If the system response is unstable, a plausible harmful contingency sequence has been found. Otherwise, components affected by the contingencies are considered as candidate next event leading to N-(k+1) contingencies. This implicitly takes into account hidden failures of component protections. The performance of the proposed search algorithm is compared to a brute-force algorithm and demonstrated on the IEEE Nordic test system. [less ▲]Detailed reference viewed: 33 (5 ULg)