Last 7 days
Bookmark and Share    
Full Text
See detailLe nouveau fichier écologique des essences. Pourquoi et comment ?
Claessens, Hugues ULg; Bifolchi, Eva; Cordier, Sophie ULg et al

in Forêt Wallonne (2014), (129), 60-70

Detailed reference viewed: 31 (11 ULg)
Full Text
See detailLa régénération naturelle des hêtraies-chênaies en lumière : approche expérimentale en forêt ardennaise
Ligot, Gauthier ULg; Claessens, Hugues ULg; Baudry, Olivier et al

in Forêt Wallonne (2014), (129), 19-21

Detailed reference viewed: 16 (0 ULg)
Peer Reviewed
See detailVariation des traits fonctionnels le long d’un gradient de cuivre et cobalt : contribution du remplacement d’espèces et de la variabilité intraspécifique
Delhaye, Guillaume; Violle, Cyril; Seleck, Maxime ULg et al

Conference (2014, April)

Les collines cuprocobaltifères du Katanga sont des lieux privilégiés pour étudier la variation des traits fonctionnels le long de gradients de stress métallique. Nous avons étudié la variation de six ... [more ▼]

Les collines cuprocobaltifères du Katanga sont des lieux privilégiés pour étudier la variation des traits fonctionnels le long de gradients de stress métallique. Nous avons étudié la variation de six traits à l’échelle des espèces et de la communauté le long d’un gradient de cuivre et cobalt. D’autres paramètres tels que la concentration en phosphore et l’humidité du sol covarient positivement avec la teneur en métal du sol. Les contributions relatives du remplacement d’espèces et de la variabilité intraspécifique à la variabilité totale des traits dans les communautés ont été déterminées. A l’échelle de la communauté, la hauteur et la surface foliaire diminuent alors que les valeurs des quatre autres traits augmentent le long du gradient. Les espèces montrent des réponses variées, généralement non significatives. Pour tous les traits, le remplacement d’espèce est le moteur principal de la variation au sein des communautés. La concentration en métal du sol implique des réponses variées sur les différents traits et les différentes espèces. Nous montrons que la concentration croissante en métal privilégie le remplacement d’espèce par rapport à la variation intraspécifique et que les espèces répondent par différentes stratégies de tolérance à la concentration en métal du le sol. La variation des traits à l’échelle des communautés est essentiellement le reflet d’un changement dans les abondances des différentes formes de vie. Les espèces à xylopodes sont dominantes sur sol pauvre en métal alors que les annuelles sont dominantes sur sol très enrichi. [less ▲]

Detailed reference viewed: 14 (1 ULg)
See detailMeta-Cognitive Mystery Tales
Dechêne, Antoine ULg

Conference (2014, April)

Detailed reference viewed: 12 (1 ULg)
Full Text
See detailTRAPPIST monitoring of comet C/2012 F6 (Lemmon)
Opitom, Cyrielle ULg; Jehin, Emmanuel ULg; Manfroid, Jean ULg et al

Poster (2014, April)

C/2012 F6 (Lemmon) is a long period comet discovered by the Mount Lemmon Survey on 2012 March 23 at 5 AU from the sun. C/2012 F6 (Lemmon) reached perihelion on March 23, 2013 at 0.73 AU from the sun. In ... [more ▼]

C/2012 F6 (Lemmon) is a long period comet discovered by the Mount Lemmon Survey on 2012 March 23 at 5 AU from the sun. C/2012 F6 (Lemmon) reached perihelion on March 23, 2013 at 0.73 AU from the sun. In December 2012 the comet was unexpectedly bright, allowing us to make an extensive monitoring during several months with both broadband and narrowband filters to follow the evolution of the comet chemical composition. The monitoring was made with TRAPPIST robotic telescope installed at La Silla observatory [1]. TRAPPIST is a 60-cm telescope dedicated to the study of exoplanets and small bodies in the solar system. The telescope is equipped with a 2Kx2K FLI Proline CCD camera very sensitive in the blue and the red. A set of narrowband cometary filters designed by the NASA for the Hale-Bopp Observing Campaign [2] is permanently mounted on the telescope along with classic Johnson-Cousins B, V, Rc, and Ic filters. We observed the comet from December 11, 2012 to March 4, 2013 (pre-perihelion) and from April 29, 2013 to June 11, 2013 (post-perihelion). At least 2 or 3 observing runs per week were programmed during this period. We collected 1358 images on 52 nights. In January and February the comet visibility allowed us to make several long runs and to detect the comet rotational variability. From the comet images in narrowband filters we studied the gaseous coma chemical composition and activity by deriving OH, NH, CN, C2 and C3 production rates using a classical Haser model [3]. The production and properties of the dust component were studied through the observation of C/2012 F6 (Lemmon) with narrowband continuum filters at 344.2 nm (UC), 444.9 nm (BC), 525.7 nm (GC) and 713.0 nm (RC). We used A(θ)fρ [4] parameter as a proxy for the dust production. [less ▲]

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the relationships between characteristics of the vertebral column of different cetaceans and their ecology: A preliminary study.
Gillet, Amandine ULg; Ninane, Catherine ULg; Remy, François ULg et al

Poster (2014, April)

Ecomorphology is the study of the relationships between functional design and the environment. One of its aims is to understand how the environmental factors can constraint the performance of an organism ... [more ▼]

Ecomorphology is the study of the relationships between functional design and the environment. One of its aims is to understand how the environmental factors can constraint the performance of an organism or act on its phenotype. Different studies have already showed in different cetaceans that the number and shape of vertebrae can reflect the stiffness of the body and consequently can impact their swimming mode. The aim of this preliminary study is to establish relationships between characteristics of the vertebral column of different cetaceans and their ecology. To this purpose, we have studied meristic and morphometric data on the vertebrae (centrum length, height and width, neural and haemal spine height and the transverse process length) of different species of mysticetes and odontocetes coming from the Aquarium-Museum of Liège and Royal Institute of Natural Sciences of Bruxelles. Preliminary results showed the distinction of three morphotypes: firstly, the active, cruising, fast swimmers with rigid body, secondly, the maneuverers, slow swimmers with flexible body and thirdly, the steady swimmers. [less ▲]

Detailed reference viewed: 40 (17 ULg)
Full Text
Peer Reviewed
See detailBone sialoprotein as a potential key factor implicated in the pathophysiology of osteoarthritis
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Walsh, David et al

in Osteoarthritis and Cartilage (2014), 22(4), 547-56

Detailed reference viewed: 10 (3 ULg)
Full Text
Peer Reviewed
See detailAnimal health and welfare: equivalent or complementary?
Nicks, Baudouin ULg; Vandenheede, Marc ULg

in Revue scientifique et technique - Office international des épizooties (2014), 33(1), 91-96

Reflexion about the concepts of "health" and "welfare", applied to domestic animals in comparison with humans.

Detailed reference viewed: 84 (50 ULg)
Peer Reviewed
See detailOptimized Waveform Relaxation Methods for Modeling Electromagnetic Field-Circuit Problems
Nshimiyimana, Jean de Dieu ULg; Plumier, Frédéric ULg; Dular, Patrick ULg et al

in Proceedings of Sixteenth Biennal IEEE Conference on Electromagnetic Field Computation (2014, April)

The convergence of classical and optimized waveform relaxation methods is compared for the simulation of field-circuit problems, where a finite element solver is used for the solution of the field problem ... [more ▼]

The convergence of classical and optimized waveform relaxation methods is compared for the simulation of field-circuit problems, where a finite element solver is used for the solution of the field problem and a circuit simulator is used for the electronic circuit. [less ▲]

Detailed reference viewed: 20 (7 ULg)
Full Text
Peer Reviewed
See detailNeutralizing properties of peptides derived from CXCR4 extracellular loops towards CXCL12 bidnig and HIV-1 infection
Szpakowska, Martyna ULg; Fievez, Virginie; Counson, Manuel et al

Poster (2014, April)

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailvCCL2, the third agonist ligand for the -arrestin-biased chemokine receptor CXCR7
Szpakowska, Martyna ULg; Derj, Anouar ULg; Counson, Manuel et al

Poster (2014, April)

Detailed reference viewed: 16 (5 ULg)
Full Text
See detailProjet TADAM: Conclusions scientifiques et recommandations
Lemaître, André ULg; ANSSEAU, Marc ULg; Demaret, Isabelle ULg

in Lettre du RESPADD (2014), (18), 2-4

Detailed reference viewed: 13 (4 ULg)
Full Text
Peer Reviewed
See detailCrystal Chemistry of Synthetic M(2+)Be2P2O8 (M(2+) = Ca, Sr, Pb, Ba) Beryllophosphates
Dal Bo, Fabrice ULg; Hatert, Frédéric ULg; Baijot, Maxime ULg

in Canadian Mineralogist (2014), 52(2), 337-350

Detailed reference viewed: 10 (2 ULg)