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See detailEvolutionary significance and trade-offs in life-history traits associated to ecological specialization and mating systems in the liverwort genus Radula Dumort.
Laenen, Benjamin ULiege; Devos, Nicolas; Renner, Matt et al

Poster (2011)

Shifts in mating systems are amongst the most common and important transitions in plants and are correlated with a suite of life-history traits. The evolution of mating systems and their relationships to ... [more ▼]

Shifts in mating systems are amongst the most common and important transitions in plants and are correlated with a suite of life-history traits. The evolution of mating systems and their relationships to gametophyte size, sexual reproduction, formation of asexual diaspores, and ecological specialization, is examined here in the leafy liverwort genus Radula.More specifically, we attempt to answer the following questions:(1)What is the ancestral mating system in Radula? (2)Are shifts from one mating system to another directional or random? (3)How does the evolution of mating systems correlate with the evolution of other related life history traits and, in particular, the specialization to temporary habitats? (4)What are the contingence relationships and order of acquisitionof those traits? [less ▲]

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See detailEvolutionary status of the Of?p star HD 148937 and of its surrounding nebula NGC 6164/5
Mahy, Laurent ULiege; Hutsemekers, Damien ULiege; Nazé, Yaël ULiege et al

in Astronomy and Astrophysics (2017), 599(A61), 17

<BR /> Aims: The magnetic star HD 148937 is the only Galactic Of?p star surrounded by a nebula. The structure of this nebula is particularly complex and is composed, from the center out outwards, of a ... [more ▼]

<BR /> Aims: The magnetic star HD 148937 is the only Galactic Of?p star surrounded by a nebula. The structure of this nebula is particularly complex and is composed, from the center out outwards, of a close bipolar ejecta nebula (NGC 6164/5), an ellipsoidal wind-blown shell, and a spherically symmetric Strömgren sphere. The exact formation process of this nebula and its precise relation to the star's evolution remain unknown. <BR /> Methods: We analyzed infrared Spitzer IRS and far-infrared Herschel/PACS observations of the NGC 6164/5 nebula. The Herschel imaging allowed us to constrain the global morphology of the nebula. We also combined the infrared spectra with optical spectra of the central star to constrain its evolutionary status. We used these data to derive the abundances in the ejected material. To relate this information to the evolutionary status of the star, we also determined the fundamental parameters of HD 148937 using the CMFGEN atmosphere code. <BR /> Results: The Hα image displays a bipolar or "8"-shaped ionized nebula, whilst the infrared images show dust to be more concentrated around the central object. We determine nebular abundance ratios of N/O = 1.06 close to the star, and N/O = 1.54 in the bright lobe constituting NGC 6164. Interestingly, the parts of the nebula located further from HD 148937 appear more enriched in stellar material than the part located closer to the star. Evolutionary tracks suggest that these ejecta have occured 1.2-1.3 and 0.6 Myr ago, respectively. In addition, we derive abundances of argon for the nebula compatible with the solar values and we find a depletion of neon and sulfur. The combined analyses of the known kinematics and of the new abundances of the nebula suggest either a helical morphology for the nebula, possibly linked to the magnetic geometry, or the occurrence of a binary merger. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Based in part on observations collected at the European Southern Observatory, in Chile. [less ▲]

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See detailEvolutionary trends of swimbladder sound mechanisms in some teleost fishes
Parmentier, Eric ULiege; Diogo, Rui

in Ladich, F.; Collin, S. P.; Moller, P. (Eds.) et al Fish Communication (2006)

Many teleosts are able to emit sounds with their swimbladder. This chapter reviews the various sonic mechanisms involving the swimbladder and the intrinsic and extrinsic muscles, comparing them from a ... [more ▼]

Many teleosts are able to emit sounds with their swimbladder. This chapter reviews the various sonic mechanisms involving the swimbladder and the intrinsic and extrinsic muscles, comparing them from a morphological, biochemical, morphofunctional and physiological point of view. Close attention is paid to the Siluriformes and Ophidiiformes in which different cases of parallelism and/or convergence are examined. [less ▲]

Detailed reference viewed: 93 (11 ULiège)
See detailLes évolutions de l’offre en logement : de la désurbanisation au renouvellement urbain
Halleux, Jean-Marie ULiege

Conference given outside the academic context (2003)

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See detailÉvolutions démographiques et défis en matière de logement : le cas de la Wallonie
Halleux, Jean-Marie ULiege

Conference (2014, December 16)

Detailed reference viewed: 20 (5 ULiège)
See detailEvolutions des techniques et matériaux en prothèses depuis 40 ans; Perspectives
MAINJOT, Amélie ULiege

Conference (2016, September 09)

Detailed reference viewed: 18 (1 ULiège)
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See detailLes évolutions du droit de la famille en Europe au cours du dernier demi-siècle. Le couple ou méditation sur le même et le différent
Fierens, Jacques ULiege

in Servais, P. (Ed.) Regards sur la famille, le couple et la sexualité. Un demi-siècle de mutations (2014)

Detailed reference viewed: 11 (1 ULiège)
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See detailLes évolutions du marché de l'emploi face au néolibéralisme
Remy, Céline ULiege

Article for general public (2017)

Detailed reference viewed: 12 (1 ULiège)
See detailLes évolutions du phénomène urbain : précision des concepts et modélisation
Halleux, Jean-Marie ULiege

Conference (2001, February 28)

Detailed reference viewed: 7 (0 ULiège)
See detailLes évolutions du système de production du logement en Wallonie : vers la fin de l'étalement urbain ?
Halleux, Jean-Marie ULiege

Conference given outside the academic context (2015)

Detailed reference viewed: 19 (1 ULiège)
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See detailEvolutions et changement de paradigme dans la fonction publique fédérale belge
Piron, Damien ULiege

in Revue de la Faculté de Droit de l'Université de Liège (2012), 4

Detailed reference viewed: 84 (12 ULiège)
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See detailÉvolutions multiples et intérêts nouveaux en matière de climatologie depuis 1970.
Erpicum, Michel ULiege

Scientific conference (2014, February 25)

Evolution of the knowledge of the main variables of the climates of the Earth according to the recent evolution of the principal tools of climatology and instrumental data coming from international or ... [more ▼]

Evolution of the knowledge of the main variables of the climates of the Earth according to the recent evolution of the principal tools of climatology and instrumental data coming from international or national networks or from experimental measurements conducted in Climatological or Meteorological Institutes. [less ▲]

Detailed reference viewed: 71 (13 ULiège)
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See detailEvolutions récentes de l'évaluation de la recherche. Quelques concepts pertinents
Leclercq, Bruno ULiege

in Zaccai, Edwin; alii (Eds.) Penser la science: L’évaluation de la recherche en question (2016)

Detailed reference viewed: 28 (2 ULiège)
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See detailEvolutions récentes de l’évaluation de la recherche. Quelques concepts pertinents
Leclercq, Bruno ULiege

Conference (2015, May 09)

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See detailEvolutions récentes en matière de fiscalité immobilière
Bourgeois, Marc ULiege

Conference given outside the academic context (2015)

Detailed reference viewed: 15 (1 ULiège)
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See detailEvolutions sociales, innovations et poliques. Nouvelles questions et nouveaux enjeux pour la psychologie de la santé
Etienne, Anne-Marie ULiege; Bragard, Isabelle ULiege

Book published by Editions des archives contemporaines (2016)

Le 8e Congrès de l’Association francophone de psychologie de la santé s’est déroulé à l’Université de Liège, du 15 au 17 décembre 2014. Trois grands thèmes y ont été développés : les évolutions sociales ... [more ▼]

Le 8e Congrès de l’Association francophone de psychologie de la santé s’est déroulé à l’Université de Liège, du 15 au 17 décembre 2014. Trois grands thèmes y ont été développés : les évolutions sociales, les innovations et les politiques, dans le domaine de la psychologie de la santé. Ce congrès a également permis la production de cet ouvrage qui se subdivise en sept parties : « Enfant, famille et santé » ; « Psycho-oncologie » ; « Santé au travail » ; « Vieillissement et santé » ; « Maladies chroniques » ; « Risques en santé et éducation thérapeutique » ; « Émotion et santé ». Les différents articles présentés rendent compte de la diversité des approches conceptuelles et méthodologiques qui constituent l’identité de la psychologie de la santé francophone. [less ▲]

Detailed reference viewed: 68 (4 ULiège)
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See detailAn Evolutive Software Environment for Teaching the Finite Element Method in Electromagnetism
Dular, Patrick ULiege; Geuzaine, Christophe ULiege; Genon, André ULiege et al

in IEEE Transactions on Magnetics (1999), 35(3), 1682--1685

Detailed reference viewed: 59 (0 ULiège)