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See detailNouvelles courbes de productivité harmonisées pour le douglas, l'épicéa et les mélèzes en wallonie
Perin, Jérôme ULg; De Thier, Olivier ULg; Claessens, Hugues ULg et al

in Forêt Wallonne (2014), 129(mars/avril),

Les courbes de productivité sont des outils de diagnostic précieux en gestion forestière. Elles permettent d'estimer le potentiel de production d'un peuplement de structure équienne d’âge connu à partir d ... [more ▼]

Les courbes de productivité sont des outils de diagnostic précieux en gestion forestière. Elles permettent d'estimer le potentiel de production d'un peuplement de structure équienne d’âge connu à partir d'une mesure ponctuelle de la hauteur dominante. Une nouvelle génération de modèles de productivité plus fiables ont été développés pour l'épicéa, le douglas et les mélèzes en Wallonie et ont été intégrés au sein d'un outil informatique de diagnostic simple et rapide d'utilisation. [less ▲]

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See detailH50, estimateur d’indice de productivité
Perin, Jérôme ULg; De Thier, Olivier ULg

Computer development (2014)

H50 est un outil qui permet l’estimation de l’indice de productivité de divers peuplements purs équiennes, tant résineux que feuillus. Il intègre, au sein d’une interface simple d’utilisation, les modèles ... [more ▼]

H50 est un outil qui permet l’estimation de l’indice de productivité de divers peuplements purs équiennes, tant résineux que feuillus. Il intègre, au sein d’une interface simple d’utilisation, les modèles de productivité les plus récents développés par les scientifiques de Gembloux Agro-Bio Tech pour l’épicéa, le douglas, les mélèzes, le bouleau verruqueux, le merisier, l’érable sycomore, les chênes indigènes et le robinier. Les données nécessaires à son utilisation sont l’essence, une mesure de hauteur dominante et l’âge du peuplement au moment de la mesure. L’outil se présente sous la forme d’une feuille de calcul qui permet le traitement simultané de données issues de plusieurs peuplements de diverses essences. Il est également possible de directement y copier-coller des données issues de documents encodés sous Microsoft Access ou Excel par exemple. Cet outil a été développé avec l’appui des Services Publics de Wallonie (Département de la Nature et des Forêts, Accord-Cadre Recherche et Vulgarisation forestières). [less ▲]

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See detailExtensive study of HD 25558, a long-period double-lined binary with two SPB components
Sódor, Á.; De Cat, P.; Wright, D. J. et al

in Monthly Notices of the Royal Astronomical Society (2014), 438(4), 3535-3556

We carried out an extensive observational study of the Slowly Pulsating B (SPB) star, HD 25558. The ~2000 spectra obtained at different observatories, the ground-based and MOST satellite light curves ... [more ▼]

We carried out an extensive observational study of the Slowly Pulsating B (SPB) star, HD 25558. The ~2000 spectra obtained at different observatories, the ground-based and MOST satellite light curves revealed that this object is a double-lined spectroscopic binary with an orbital period of about 9 years. The observations do not allow the inference of an orbital solution. We determined the physical parameters of the components, and found that both lie within the SPB instability strip. Accordingly, both show line-profile variations due to stellar pulsations. Eleven independent frequencies were identified in the data. All the frequencies were attributed to one of the two components based on Pixel-by-pixel variability analysis of the line profiles. Spectroscopic and photometric mode identification was also performed for the frequencies of both stars. These results suggest that the inclination and rotation of the two components are rather different. The primary is a slow rotator with ~6 d period, seen at ~60 deg inclination, while the secondary rotates fast with ~1.2 d period, and is seen at ~20 inclination. Spectropolarimetric measurements revealed that the secondary component has a magnetic field with at least a few hundred Gauss strength, while no magnetic field can be detected in the primary. [less ▲]

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See detailA method to evaluate the adaptability of photovoltaic energy on urban facades
Esclapés Jover, F.J.; Ferreiro Prieto, I.; Piera Llodrá, J. et al

in Solar Energy (2014), 105

Solar simulation and evaluation tools are essential for the design of novel energy and environmental strategies. To date, a number published studies in this area focused on the analysis of flat roofs and ... [more ▼]

Solar simulation and evaluation tools are essential for the design of novel energy and environmental strategies. To date, a number published studies in this area focused on the analysis of flat roofs and small urban areas. This paper presents a method, based on Geographic Information Systems (GIS), for defining the potential of photovoltaic solar energy over urban faßcades. The method enables the generation of 3D solar maps from two standard data sources, namely cadastral cartography and data on solar irradiance registered by the Spanish State Meteorological Agency (AEMET, for its initials in Spanish). A series of charts have been generated relating the urban and solar geometries as a result of the numerical model. The charts permit the study of the optimal parameters for the photovoltaic integration over faßcades. In addition, a study conducted over a representative urban area of Madrid is discussed as an example of the applicability of the discussed methodology. Finally, the adequacy of the Spanish Technical Edification Code (CTE, for its initials in Spanish), defining thresholds regarding the usability of photovoltaic energy, has been tested both theoretically and through the case study. Our study concludes that this regulation hinders the architectural integration of photovoltaic devices given the strict usability thresholds adopted. [less ▲]

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See detailIntroduction : Visions du Paradis/Visions of paradise
Melice, Anne ULg; Van Wolputte, Steven; Pype, Katrien

in Social Compass (2014), 61 (1)

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See detailInterview: Rosalind Hackett reflects on religious media in Africa
Melice, Anne ULg; Hackett, Rosalind; Van Wolputte, Steven et al

in Social Compass (2014), 61 (1)

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See detailRobustness of quantum multifractality
Georgeot, Bertrand; Dubertrand, Rémy; Garcia-Mata, Ignacio et al

Scientific conference (2014, March)

Several models where quantum wave functions display multifractal properties have been recently identified. In the quantum chaos field, they correspond to pseudointegrable systems, with properties ... [more ▼]

Several models where quantum wave functions display multifractal properties have been recently identified. In the quantum chaos field, they correspond to pseudointegrable systems, with properties intermediate between integrability and chaos. In condensed matter, they include electrons in a disordered potential at the Anderson metal-insulator transition. These multifractality properties lead to particular transport properties and appear in conjunction with specific types of spectral statistics. In parallel, progress in experimental techniques allow to observe finer and finer properties of the wavefunctions of quantum or wave systems, as well as to perform experiments with unprecedented control on the dynamics of the systems studied. In this context, this talk will discuss the robustness of multifractality in presence of small perturbations. We identify two distinct processes of multifractality destruction according to the type of perturbation, and specify a range of parameters where multifractality could indeed be observed in physical systems in presence of imperfections. [less ▲]

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See detailLettre d'information trimestrielle n° 13 du projet DACEFI 2
Meunier, Quentin; Moumbogou, Carl; Boldrini, Sylvie et al

E-print/Working paper (2014)

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See detailRapport final du projet FRFC n° 2.4577.10. Dynamique des populations d’arbres et d’herbacées héliophiles en relation avec les anciennes perturbations anthropiques et climatiques
Doucet, Jean-Louis ULg; Hardy, Olivier

Report (2014)

L’objectif principal de ce projet était d’étudier dans quelle mesure l’organisation de la biodiversité végétale des forêts d’Afrique centrale a été influencée par les activités anthropiques et les ... [more ▼]

L’objectif principal de ce projet était d’étudier dans quelle mesure l’organisation de la biodiversité végétale des forêts d’Afrique centrale a été influencée par les activités anthropiques et les changements climatiques qui se sont déroulés au cours des quelques derniers millénaires. A cette fin, cinq disciplines ont été utilisées : (1) l'archéologie afin de dater et de quantifier l’intensité de l’occupation humaine ; (2) l'anthracologie pour reconstituer la végétation présente lors du passage des feux ; (3) la dendrochronologie en vue d’établir des corrélations entre les événements passés et l'âge des arbres ; (4) l'écologie des communautés pour permettre de tester l’existence d’une corrélation entre l’abondance d’espèces héliophiles et les indices d’occupation humaine ; (5) la génétique des populations afin d'identifier des signatures génétiques d’anciens évènements de fragmentation et de changement démographique. [less ▲]

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See detailCROSSROADS - magazine sonore des musiques noires US
Sacré, Robert ULg

Diverse speeche and writing (2014)

émission radio hebdomadaire diffusée sur EQUINOXE FM 100.1 (on line via www.equinoxefm.be) : tous les mercredis de 18 à 20h : contenu : blues,R&B,Soul, gospel, Zydeco, jazz

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See detailIntentionnalité in obliquo
Dewalque, Arnaud ULg

in Bulletin d'Analyse Phénoménologique (2014)

Je suggère ici qu'une théorie adéquate de l'intentionnalité ne peut pas faire l'économie de la notion d'intentionnalité latérale ou "in modo obliquo". Je compare, sur ce point, les contributions de ... [more ▼]

Je suggère ici qu'une théorie adéquate de l'intentionnalité ne peut pas faire l'économie de la notion d'intentionnalité latérale ou "in modo obliquo". Je compare, sur ce point, les contributions de Chisholm et de Brentano. Après une brève introduction (§ 1), je reconstruis la théorie de la référence indirecte de Chisholm (§§ 2-3) et la théorie des représentations in obliquo de Brentano (§§ 4-6). À mon sens, ces théories présupposent toutes deux l’idée que certains items ne peuvent pas être visés de façon directe ou in recto – ce qui implique la question suivante: en vertu de quoi certains items ne peuvent-ils pas être représentés in recto? (§ 7). Je fais alors l’hypothèse que la notion de contenu abstrait ou dépendant, développée par Stumpf et Husserl, offre une solution à ce problème (§ 8). Enfin, je suggère que ce critère permet de construire une interprétation plausible de la théorie brentanienne et, simultanément, de jeter un regard critique sur la théorie de la référence indirecte de Chisholm (§ 9). [less ▲]

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See detailGas injection test in the Callovo-Oxfordian claystone: data analysis and numerical modelling
De la Vaissière, Rémi; Gerard, Pierre; Radu, Jean-Pol ULg et al

in Geological Society, London, Special Publications Online First (2014)

This paper describes a field-scale experiment on gas transport mechanisms performed at Andra’s Underground Research Laboratory (URL) in a clay rock. The experimental layout consists of two parallel ... [more ▼]

This paper describes a field-scale experiment on gas transport mechanisms performed at Andra’s Underground Research Laboratory (URL) in a clay rock. The experimental layout consists of two parallel boreholes that are equipped with multiple packer completions isolating three intervals each, which have been continuously monitoring the pore pressure evolution of the clay rock. Nitrogen gas was injected in the middle test interval of one of the boreholes at increasing rates. The entire gas test comprised six periods of controlled gas injections, each fol-lowed by a shut-in pressure recovery phase. The experimental data are presented along with their interpretation by means of numerical modelling of two-phase flow of gas and water using different numerical codes and different geometrical approaches that include axisymmetric, half-space and full 3D models. An iterative modelling process was used to show step-by-step how an accu-rate description of each component of the experiment system produced a satisfactory reproduc-tion of the experimental data and an improved understanding of the relevant phenomena. For instance, the initial volume of remaining water in the test interval, and the presence of a damaged zone around the boreholes, was important for the models to obtain good agreement with the field data. [less ▲]

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See detailLearning to Learn: Assessment of Metacognitive competencies
Frenkel, Stéphanie ULg; Nobile, Debora ULg

in IATED (Ed.) INTED2014 Proceedings (2014, March)

Numerous students are having school difficulties linked to the way they learn. Some authors speak of a “metacognitive deficit”. We refer to a “sleeping potential” instead (Frenkel, 2013, in press; Frenkel ... [more ▼]

Numerous students are having school difficulties linked to the way they learn. Some authors speak of a “metacognitive deficit”. We refer to a “sleeping potential” instead (Frenkel, 2013, in press; Frenkel & Deforge, in press; Frenkel & Nobile, 2013). Be it psychologists, teachers or parents, all wish to develop their skills in order to help these students. This is the case in primary and secondary school. Metacognitive abilities play a central role in learning (e.g., Frenkel & Deforge, in press; Giasson, 2001; Grangeat, 1997; Hessels & Hessels-Schlatter, 2010b; Lumbelli, 2003; Poissant, Poëllhuber & Falardeau, 1994; Rozencwajg, 2003; Veenman, Kok & Blöte, 2005) and thus in successful school learning (Büchel, 2013a, 2013b; Van der Stel & Veenman, 2010; Wang, Haertel & Walberg, 1994). However, studying them requires that we clarify what is meant by “metacognition” and “metacognitive abilities”. In this framework, we developed the EDUCA + project which is intended to provide possible solutions. EDUCA + is based on wide field experience. Its theoretical background is based on a substantial review of the literature. Its objective is to increase the expertise of “front line” field workers by developing specific products such as tools, training courses, services, and a website (Frenkel, in press). This will notably enable them to develop their expertise, detect « sleeping » potential, diagnose, give advice when necessary, intervene (prevention and remediation) and use the tools efficiently. Two types of tools are being designed. On the one hand, assessment tools (tests allowing to put forward the learner’s strengths and weaknesses as well as the scope of his/her “sleeping potential”). On the other hand, intervention tools (short prevention vs. remediation programs). This also includes training courses and services. The creation of a website also aims to reinforce the actions of EDUCA + (personalized access depending on the internaut’s profile: students, parents, professionals). The aim of this paper is to present this research project and its main theoretical background. [less ▲]

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See detailRapport narratif final Projet Interuniversitaire Ciblé 2008-2012 – et année complémentaire
Verjans, Pierre ULg

Report (2014)

Une recherche de cinq ans menée avec une université locale et la société civile provinciale montre les potentialités de développement d'une gouvernance satisfaisante pour la population à partir des usages ... [more ▼]

Une recherche de cinq ans menée avec une université locale et la société civile provinciale montre les potentialités de développement d'une gouvernance satisfaisante pour la population à partir des usages locaux. [less ▲]

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See detailComparaison des populations de Culicoides Latreille 1809 (Diptera: Ceratopogonidae) présentes au sein d’une bergerie belge et d’une prairie ovine associée
Zimmer, Jean-Yves ULg; Losson, Bertrand ULg; Saegerman, Claude et al

in Annales de la Société Entomologique de France (2014), 49(4), 446-459

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 ▲]

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See detailDo large companies ignore formal sustainability management controls? An exploration amongst corporate practices
Crutzen, Nathalie ULg; Schaltegger, Stefan

in EMAN (Ed.) Proceedings of the 2014 EMAN conference (2014, March)

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See detailLong-term outcome and use of 6-Minute Walk test in West Highland white Terriers with idiopathic pulmonary fibrosis
Lilja-Maula, LIO; Laurila, HP; Syrjä, P et al

in Journal of Veterinary Internal Medicine (2014), 28(2), 379-385

Detailed reference viewed: 5 (0 ULg)