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See detailExpérimentation des « Brain Break » dans l’enseignement primaire. Avis des élèves
Cloes, Marc ULg; Mornard, Manhattan ULg

in Science & Sports (2014, October 17), 29(Hors-série 1), 52

L'école est identifiée comme un des piliers de la lutte contre la sédentarité des jeunes. Une société américaine (HOPSports) conçoit et diffuse des séquences de quelques minutes qui mettent en scène des ... [more ▼]

L'école est identifiée comme un des piliers de la lutte contre la sédentarité des jeunes. Une société américaine (HOPSports) conçoit et diffuse des séquences de quelques minutes qui mettent en scène des personnages, réalisant des activités à imiter en classe: les 'Brain Breaks' (BB). Ces videos ont été proposées pendant trois mois dans deux écoles primaires de la région liégeoise. L'opinion des élèves est positive mais leurs attitudes à l'égard de l'école et de l'activité physique ne change guère. [less ▲]

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See detailExpérimentation médicale sur l'être humain. Propositions pour un cadre législatif.
Palermini, Patricia ULg; Delfosse, Marie-Luce

in Revue de Droit de la Santé = Tijdschrift voor Gezondheidsrecht (1997), (5), 333-344

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See detailExpérimentations manuscrites : lettres, albums et livres d’or
Saint-Amand, Denis ULg

Conference (2013, October 16)

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See detailLes expérimentations télématiques en Europe: rôle et limites de l'intervention publique
Pichault, François ULg

in Laperrière, R.; Claret, H.; Péladeau, P. (Eds.) Une démocratie technologique? (1988)

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See detailExperimenteel onderzoek naar het brandgedrag van kolommen in gewapend beton
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Baus, Raymond et al

in Infrastructuur in het Leefmilieu (1995), 6

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See detailExpérimenter, tout un programme
Hindryckx, Marie-Noëlle ULg; Poffé, Corentin ULg

in Cornet, Jacques; Daro, Sabine (Eds.) Voir double pour mieux comprendre (2015)

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See detailExpérimenter, tout un programme!
Hindryckx, Marie-Noëlle ULg; Poffé, Corentin ULg

Conference (2011, May 27)

Le décret des missions prioritaires de l’enseignement fondamental et secondaire, les programmes du secondaire supérieur en sciences et les commissions des outils d’évaluation recommandent de travailler la ... [more ▼]

Le décret des missions prioritaires de l’enseignement fondamental et secondaire, les programmes du secondaire supérieur en sciences et les commissions des outils d’évaluation recommandent de travailler la compétence « expérimenter – utiliser des procédures expérimentales » avec les élèves (FT2 mener à bien une recherche expérimentale). Les futurs enseignants du secondaire supérieur ne sont pas toujours conscients des enjeux et de la portée des démarches scientifiques (et/ou expérimentales) qu’ils mettent en place en classe. Regarder un « C’est pas sorcier », cela équivaut-il à réaliser ou faire réaliser aux élèves une expérience en classe ? Certains ont peur de se lancer dans des démarches expérimentales plus libres car ils craignent la question dont ils n’auraient pas réponse immédiate ou la piste expérimentale qu’ils n’auraient pas anticipée. D’autres craignent l’expérience qui rate, la saleté, le désordre et le bruit. D’autres encore mentionnent le matériel, difficile à rassembler et surtout à transporter, le temps nécessaire pour mener à bien certaines expériences (p.ex. germinations)… Sous l’intitulé « expérimentons », les manuels scolaires proposent différents types d’outils. Est-ce que ces démarches correspondent réellement à cette compétence ? Est-ce l’élève qui expérimente ? Quel est l’apport de ce type d’outils ? En proposant différents ateliers « expérimentaux » aux participants, nous voudrions attirer l’attention sur ces différents points et réfléchir ensemble à ces questions :  Quel est le statut réel de la démarche proposée aux élèves ?  Quelle est la part de l’élève dans la construction de son apprentissage? Quel est le rôle de l’enseignant ?  Quels sont les avantages à travailler par ce type de démarches pour l’enseignant et pour ses élèves? Quelle image de la science et du scientifique véhicule-t-on à travers notre façon de travailler la compétence « expérimenter » en classe ? [less ▲]

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See detailExperiments and Evolving Frameworks of Scientific Exploration: Jean-André Personnel’s Work on Coral
Vandersmissen, Jan ULg

in Klemun, Marianne; Spring, Ulrike (Eds.) Expeditions as Experiments: Practising Observation and Documentation (in press)

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See detailExperiments in Live Capture and Transmission of Stereoscopic 3D Video Images
Grogna, David ULg; Verly, Jacques ULg

in Lucas, Laurent; Loscos, Celine; Remion, Yannick (Eds.) 3D Video: From Capture to Diffusion (2013)

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See detailExperiments on a 3-D Flapping and Pitching Mechanical Model
Norizham, Abdul Razak ULg; Rothkegel Ide, José Ignacio ULg; Dimitriadis, Grigorios ULg

in Proceedings of the 2009 International Forum on Aeroelasticity and Structural Dynamics (2009, June)

The motivation for this paper is to focus on the better understanding of flapping wing flight, including flapping flight involving high pitching amplitudes. The investigation will be primarily ... [more ▼]

The motivation for this paper is to focus on the better understanding of flapping wing flight, including flapping flight involving high pitching amplitudes. The investigation will be primarily experimental. The experiment will utilize a mechanical flapping and pitching wind tunnel model, which is modeled on large migrating birds. The 3-D rectangular wings are forced to flap and pitch sinusoidally in a low speed wind tunnel. The unsteady aerodynamic forces generated are measured using a three-component force balance. The main objective of this work is to investigate the effect that varying the oscillation parameters has on the aerodynamic forces acting on the 3-D wing undergoing flapping and pitching. The parameters in question are reduced frequency, flapping ampli- tude and pitching amplitude. Comparisons are made with aerodynamic force predictions obtained from unsteady vortex lattice calculations. [less ▲]

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See detailExperiments on a pitch-plunge wing undergoing limit cycle oscillation
Norizham, Abdul Razak ULg; Rothkegel Ide, José Ignacio ULg; Dimitriadis, Grigorios ULg

in Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (2012, April 25)

The aeroelastic behaviour of a wing oscillating in the heave and pitch degrees of freedom is examined by means of wind tunnel experiment. The phenomena of interest are classical flutter and limit cycle ... [more ▼]

The aeroelastic behaviour of a wing oscillating in the heave and pitch degrees of freedom is examined by means of wind tunnel experiment. The phenomena of interest are classical flutter and limit cycle oscillation. Classical flutter is normally associated with the exponential growth of the response amplitude. Linear flutter theory only predicts the critical flutter speed. Any excitation or disturbance beyond the critical speed is assumed to cause exponential growth in the response amplitude. In contrast, any limited amplitude oscillations occurring post-fultter suggest the existence of nonlinear properties in the system. Such properties can originate from the aerodynamic forces in the form of flow separation and reattachment. On the structural side, damping and stiffness can also contribute nonlinear properties. Furthermore, these nonlinearities can manifest themselves even at pre-flutter conditions, depending on the values of some governing parameter. The focus of the present work is the transformation of classical flutter into stall flutter as the equilibrium angle of attack of heaving and pitching wing is increased. The interaction of stall-related nonlinearity with structural nonlinearities is also of interest. The measured aeroelastic responses are analyzed and the bifurcation behavior of the dynamic system is characterized. Structural responses as well as flow field visualization through Particle Image Velocimetry show the origin of nonlinearity does not solely come from the manifestation of separation and the shedding of vortices, but from the structural nonlinearity which limits the response amplitude. [less ▲]

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See detailExperiments on liquid immiscibility along tholeiitic liquid lines of descent
Charlier, Bernard ULg; Grove, T. L.

in Contributions to Mineralogy and Petrology (2012), 164(1), 27-44

Crystallization experiments have been conducted on compositions along tholeiitic liquid lines of descent to define the compositional space for the development of silicate liquid immiscibility. Starting ... [more ▼]

Crystallization experiments have been conducted on compositions along tholeiitic liquid lines of descent to define the compositional space for the development of silicate liquid immiscibility. Starting materials have 46-56 wt% SiO 2, 11.7-17.7 wt% FeO tot, and Mg-number between 0.29 and 0.36. These melts fall on the basaltic trends relevant for Mull, Iceland, Snake River Plain lavas and for the Sept Iles layered intrusion, where large-scale liquid immiscibility has been recognized. At one atmosphere under anhydrous conditions, immiscibility develops below 1,000-1,020°C in all of these compositionally diverse lavas. Extreme iron enrichment is not necessary; immiscibility also develops during iron depletion and silica enrichment. Variations in melt composition control the development of silicate liquid immiscibility along the tholeiitic trend. Elevation of Na 2O + K 2O + P 2O 5 + TiO 2 promotes the development of two immiscible liquids. Increasing melt CaO and Al 2O 3 stabilizes a single-liquid field. New data and published phase equilibria show that anhydrous, low-pressure fractional crystallization is the most favorable condition for unmixing during differentiation. Pressure inhibits immiscibility because it expands the stability field of high-Ca clinopyroxene, which reduces the proportion of plagioclase in the crystallizing assemblage, thus enhancing early iron depletion. Magma mixing between primitive basalt and Fe-Ti-P-rich ferrobasalts can serve to elevate phosphorous and alkali contents and thereby promote unmixing. Water might decrease the temperature and size of the two-liquid field, potentially shifting the binodal (solvus) below the liquidus, leading the system to evolve as a single-melt phase. © 2012 Springer-Verlag. [less ▲]

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See detailExperiments on the role of gas height in the Rayleigh-Marangoni instability problem.
Ozen, O.; Theisen, E.; Johnson, Duane T et al

in Journal of Colloid & Interface Science (2005), 289(1), 271-5

Experimental evidence is provided to show the effect of gas phase dynamics on the onset of thermal convection and on the accompanying patterns in a silicone oil-air convecting bilayer. Very good agreement ... [more ▼]

Experimental evidence is provided to show the effect of gas phase dynamics on the onset of thermal convection and on the accompanying patterns in a silicone oil-air convecting bilayer. Very good agreement with three-dimensional calculations for linearized stability is obtained mostly for small and large gas heights. Reasons for this agreement as well as the results at intermediate gas heights are qualitatively explained from the perspective of well-established nonlinear analysis. [less ▲]

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See detailExperiments with the interior-point method for solving large scale Optimal Power Flow problems
Capitanescu, Florin; Wehenkel, Louis ULg

in Electric Power Systems Research (2013), 95

This paper reports extensive results obtained with the interior-point method (IPM) for nonlinear programmes (NLPs) stemming from large-scale and severely constrained classical Optimal Power Flow (OPF) and ... [more ▼]

This paper reports extensive results obtained with the interior-point method (IPM) for nonlinear programmes (NLPs) stemming from large-scale and severely constrained classical Optimal Power Flow (OPF) and Security-Constrained Optimal Power Flow (SCOPF) problems. The paper discusses transparently the problems encountered such as convergence reliability and speed issues of the method. [less ▲]

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See detailExpert consensus for multi-modality imaging evaluation of cardiovascular complications of radiotherapy in adults: a report from the European Association of Cardiovascular Imaging and the American Society of Echocardiography.
LANCELLOTTI, Patrizio ULg; Nkomo, Vuyisile T.; Badano, Luigi P. et al

in European Heart Journal - Cardiovascular Imaging (2013), 14(8), 721-40

Cardiac toxicity is one of the most concerning side effects of anti-cancer therapy. The gain in life expectancy obtained with anti-cancer therapy can be compromised by increased morbidity and mortality ... [more ▼]

Cardiac toxicity is one of the most concerning side effects of anti-cancer therapy. The gain in life expectancy obtained with anti-cancer therapy can be compromised by increased morbidity and mortality associated with its cardiac complications. While radiosensitivity of the heart was initially recognized only in the early 1970s, the heart is regarded in the current era as one of the most critical dose-limiting organs in radiotherapy. Several clinical studies have identified adverse clinical consequences of radiation-induced heart disease (RIHD) on the outcome of long-term cancer survivors. A comprehensive review of potential cardiac complications related to radiotherapy is warranted. An evidence-based review of several imaging approaches used to detect, evaluate, and monitor RIHD is discussed. Recommendations for the early identification and monitoring of cardiovascular complications of radiotherapy by cardiac imaging are also proposed. [less ▲]

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See detailExpert consensus for multimodality imaging evaluation of adult patients during and after cancer therapy: a report from the American Society of Echocardiography and the European Association of Cardiovascular Imaging.
Plana, Juan Carlos; Galderisi, Maurizio; Barac, Ana et al

in European heart journal cardiovascular Imaging (2014), 15(10), 1063-93

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See detailExpert Consensus for Multimodality Imaging Evaluation of Adult Patients during and after Cancer Therapy: A Report from the American Society of Echocardiography and the European Association of Cardiovascular Imaging.
Plana, Juan Carlos; Galderisi, Maurizio; Barac, Ana et al

in Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography (2014), 27(9), 911-39

Detailed reference viewed: 14 (2 ULg)