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See detailThe CHEOPS mission: towards exoplanet characterisation
Van Grootel, Valérie ULg

Scientific conference (2015, March)

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See detailCHEOPS: A transit photometry mission for ESA's small mission programme
Broeg, C.; Fortier, A.; Ehrenreich, D. et al

in Saglia, Roberto (Ed.) European Physical Journal Web of Conferences (2013, April 01)

Ground based radial velocity (RV) searches continue to discover exoplanets below Neptune mass down to Earth mass. Furthermore, ground based transit searches now reach milli-mag photometric precision and ... [more ▼]

Ground based radial velocity (RV) searches continue to discover exoplanets below Neptune mass down to Earth mass. Furthermore, ground based transit searches now reach milli-mag photometric precision and can discover Neptune size planets around bright stars. These searches will find exoplanets around bright stars anywhere on the sky, their discoveries representing prime science targets for further study due to the proximity and brightness of their host stars. A mission for transit follow-up measurements of these prime targets is currently lacking. The first ESA S-class mission CHEOPS (CHaracterizing ExoPlanet Satellite) will fill this gap. It will perform ultra-high precision photometric monitoring of selected bright target stars almost anywhere on the sky with sufficient precision to detect Earth sized transits. It will be able to detect transits of RV-planets by photometric monitoring if the geometric configuration results in a transit. For Hot Neptunes discovered from the ground, CHEOPS will be able to improve the transit light curve so that the radius can be determined precisely. Because of the host stars' brightness, high precision RV measurements will be possible for all targets. All planets observed in transit by CHEOPS will be validated and their masses will be known. This will provide valuable data for constraining the mass-radius relation of exoplanets, especially in the Neptune-mass regime. During the planned 3.5 year mission, about 500 targets will be observed. There will be 20% of open time available for the community to develop new science programmes. [less ▲]

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See detailLe Chèque Habitat en Région wallonne
Bourgeois, Marc ULg

Conference given outside the academic context (2016)

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See detailLe Chèque Habitat en Région Wallonne: premier aperçu
Bourgeois, Marc ULg; Voisin, Fanny ULg

in Chroniques notariales. Volume 63 (2016)

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See detailChercher ensemble
de Landsheere, Gilbert ULg

in ATEE Journal: a Journal for Teacher Education in Europe (1977), septembre

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See detailChercher sans compter
Hamers, Jérémy ULg

Speech/Talk (2013)

En réalisant heureusement le décloisonnement géographique et économique de la littérature scientifique tout en renforçant techniquement l'évaluation prioritairement statistique et donc réductrice de la ... [more ▼]

En réalisant heureusement le décloisonnement géographique et économique de la littérature scientifique tout en renforçant techniquement l'évaluation prioritairement statistique et donc réductrice de la recherche, le répertoire institutionnel d'auto-archivage ouvert expose le chercheur débutant à une tension qui risque, à terme, de nuire à certains aspects pourtant essentiels de sa recherche. (Discours prononcé à l'occasion de la cérémonie de rentrée académique 2013 de l'Université de Liège par un représentant du personnel scientifique) [less ▲]

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See detailLe chercheur comme entrepreneur de l’innovation inter-organisationnelle
Xhauflair, Virginie ULg; Pichault, François ULg

in SociologieS (2011)

Our study about the institutionalization process of social regulation practices emerging at the inter-organizational level led us to develop an action-research methodology of entrepreneurial nature. This ... [more ▼]

Our study about the institutionalization process of social regulation practices emerging at the inter-organizational level led us to develop an action-research methodology of entrepreneurial nature. This methodological choice gave rise to original and rich data, but simultaneously challenged our ability to analyze these data as well as our entrepreneurial role in a reflexive way. The central question of this paper is then twofold: on the one hand, can the researcher be an “entrepreneur”, and go beyond the simple production of knowledge? On the other hand, can the researcher with an entrepreneurial position produce scientific knowledge? We will answer these two questions thanks to two case studies, which will allow us to highlight various facets of acting as a “researcher-entrepreneur”. [less ▲]

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See detailChercheurs, libérez l'accès: vous serez plus lus et mieux cités
Rentier, Bernard ULg

Scientific conference (2014, October 13)

Availability of an article on the Internet without any barrier increases by a 20-fold factor its downloading songs as compared to those in restricted access requiring a reprint request. An article is ... [more ▼]

Availability of an article on the Internet without any barrier increases by a 20-fold factor its downloading songs as compared to those in restricted access requiring a reprint request. An article is being cited twice as much if immediately accessible. It is a fact. Hence it is crucial, if one wants to be read (why else would one one publish ?) to deposit one's manuscripts immediately after acceptance (i.e. before publication) and to make them freely accessible as soon as permitted. | L'accessibilité d'un article sur l'Internet sans aucune entrave technique augmente d'environ 20 fois ses téléchargements par rapport à l'accès restreint nécessitant une demande de tiré-à-part. Un article est cité environ 2 fois plus s'il est directement accessible. C'est une réalité. Il est donc crucial, si l'on veut être lu (sinon, pourquoi publie-t'on?) de déposer ses manuscrits immédiatement après acceptation (donc avant la publication) et de les rendre librement accessibles dès le moment où on y est autorisé. [less ▲]

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See detailChercheurs, vos papiers! Les dépôts institutionnels obligatoires
Rentier, Bernard ULg

in Hermès (2010), (57), 107-108

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See detailCherts dans le Dévonien supérieur
Malaise, Constantin ULg

in Annales de la Société Géologique de Belgique (1904), 31

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See detailCherts dans les calcaires frasniens, entre Louveigné et Remouchamps
Malaise, Constantin ULg

in Annales de la Société Géologique de Belgique (1904), 31

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See detailChest wall motion during epidural anesthesia in dogs.
Warner, David O; Brichant, Jean-François ULg; Ritman, Erik L et al

in Journal of Applied Physiology (Bethesda, Md. : 1985) (1991), 70(2), 539-47

To determine the relative contribution of rib cage and abdominal muscles to expiratory muscle activity during quiet breathing, we used lumbar epidural anesthesia in six pentobarbital sodium-anesthetized ... [more ▼]

To determine the relative contribution of rib cage and abdominal muscles to expiratory muscle activity during quiet breathing, we used lumbar epidural anesthesia in six pentobarbital sodium-anesthetized dogs lying supine to paralyze the abdominal muscles while leaving rib cage muscle motor function substantially intact. A high-speed X-ray scanner (Dynamic Spatial Reconstructor) provided three-dimensional images of the thorax. The contribution of expiratory muscle activity to tidal breathing was assessed by a comparison of chest wall configuration during relaxed apnea with that at end expiration. We found that expiratory muscle activity was responsible for approximately half of the changes in thoracic volume during inspiration. Paralysis of the abdominal muscles had little effect on the pattern of breathing, including the contribution of expiratory muscle activity to tidal breathing, in most dogs. We conclude that, although there is consistent phasic expiratory electrical activity in both the rib cage and the abdominal muscles of pentobarbital-anesthetized dogs lying supine, the muscles of the rib cage are mechanically the most important expiratory muscles during quiet breathing. [less ▲]

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See detailLe cheval de trait ardennais convient-il pour l'attelage sportif
Crigel, MH; Art, Tatiana ULg; Votion, Dominique ULg et al

in Pratique Vétérinaire Equine (1996), 28

The Ardennais draught horse (DH) is more and more used for harnessing competitions. The aim of this study was to improve our knowledge of its cardiorespiratory peculiarities, both at rest and during ... [more ▼]

The Ardennais draught horse (DH) is more and more used for harnessing competitions. The aim of this study was to improve our knowledge of its cardiorespiratory peculiarities, both at rest and during exercise. At rest, arterial blood gas analysis, venous blood analysis, a test of mechanics of breathing and an endoscopy of the upper airways were performed. Experiments during exercise were performed on a treadmill. The intensity of the standardised test was sufficient to overshoot the OBLA threshold. The test was of increasing intensity and lasted 22 min. The cardiorespiratory parameters were measured during the last 5 min. Expired volume minute (VE), VT and f were measured. Respiratory O2 and CO2 fraction were measured with a mass spectrometer. Oxygen uptake (VOA, CO2 output (VCO2) and VE/VO2 were calculated. Heart rate (HR) was continuously measured.The results were compared to data recorded in standarbred horses (SH) during a treadmill exercise test leading to a similar lactaci¬demia (LA) and peak HR.The DH have a significantly lower V02 than the SH while running at an exercise intensity inducing the same HR and LA modifications. The lower aerobic capacity of DH was at least partly correlated with their higher cost of breathing and lower blood gas transport capacity.Moreover, other measurements have been performed infield conditions, during 4 draft competitions, i.e. speed, maniability, power and endurance. Venous blood analyses before and after the competition, heart rate and body temperature measurements were performed. The results of this second set of measurements confirm the results obtained in the laboratory and allow assessing that these kinds of competition do not induce dramatic physiological modifications and therefore respect the welfare and limits of these horses. [less ▲]

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See detailLe cheval en Mésopotamie, des origines à l’époque néo-assyrienne
Van der Stede, Véronique ULg

in Cattelain, Pierre; Bozet, Nathalie (Eds.) Sur la piste du cheval. De la préhistoire à l’antiquité (2007)

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See detailLe Chevalier au Cygne et les Métamorphoses d'Ovide
Hamélius, Paul ULg

in Revue Anthropologique (1920), 30

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See detailLes chevaux ailés ont-ils des ailes ? Et qu'en est-il de Pégase ? Statut épistémologique des énoncés de fiction, statut ontologique des objets de fiction
Leclercq, Bruno ULg

Scientific conference (2013, November 13)

Le traitement réservé par la logique frégéo-russellienne aux énoncés de fiction est notoirement insatisfaisant; il impose notamment de considérer que "Tous les chevaux ailés ont des ailes" est vrai, mais ... [more ▼]

Le traitement réservé par la logique frégéo-russellienne aux énoncés de fiction est notoirement insatisfaisant; il impose notamment de considérer que "Tous les chevaux ailés ont des ailes" est vrai, mais que "Pégase a des ailes" est faux. Parmi les modèles d'analyse alternatifs qui ont été proposés au XXème siècle, le cadre des logiques meinongiennes semble, dans un premier temps, plus prometteur. Il pêche cependant par un parti-pris descriptiviste qui le rend, pour sa part, moins apte à traiter des énoncés portant sur les objets réels. Nous tâcherons de présenter les options théoriques générales sous-jacentes aux deux types de logiques (dont nous montrerons aussi plusieurs variations) ainsi que les caractérisations des notions d'objet et de vérité qui en résultent [less ▲]

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See detailChevaux … fiscaux
Richelle, Isabelle ULg

in Autenne, Jacques (Ed.) Promenades sous les portiques de la fiscalité (2009)

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See detailLes cheveux et leur environnement.
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Revue medicale de Liege (2015), 70(2), 70-2

Hair is influenced by the effects of the daily environment. Some toxic xenobiotics slow down or block the cell renewal of the hair matrix, thus inhibiting hair growth. The ultraviolet light obviously ... [more ▼]

Hair is influenced by the effects of the daily environment. Some toxic xenobiotics slow down or block the cell renewal of the hair matrix, thus inhibiting hair growth. The ultraviolet light obviously influences the physical structure and physiology of the hair follicle. Tobacco is similarly responsible for negative influences on the evolution of various alopecias. Several cosmetic procedures for maintaining and making hair more attractive are not always harmless, and they occasionally represent a possible origin for alopecia. [less ▲]

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See detailCheveux et risques environnementaux.
Franchimont, Claudine ULg; Pierard, Gérald ULg

in Pharma-Sphère (2004), 92

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See detailCheveux et risques environnementaux.
Franchimont, Claudine ULg; Pierard, Gérald ULg

in Skin (2005), 8

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