Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
See detailDisentangling the sources of phenotypic variation in Ambrosia artemisiifolia L.: the role of seed traits
Ortmans, William ULg; Monty, Arnaud ULg; Mahy, Grégory ULg

Poster (2014, November 03)

When invading new environments, a plant invader may express new phenotypes as a result of different ecological and genetic processes. It includes phenotypic plasticity, local adaptation, environmental ... [more ▼]

When invading new environments, a plant invader may express new phenotypes as a result of different ecological and genetic processes. It includes phenotypic plasticity, local adaptation, environmental maternal effects, and genetic drift. The quantification of each of these factors is crucial in the study of biological invasions. Ambrosia artemisiifolia L. invasion success is strongly linked to seed characteristics (dispersal by human activities, long-lived soil seed bank, etc.). Known as an opportunist and a colonizer, the species is often limited by the competition from other plants. In the early stages of development, the seedlings can be quickly outcompeted and a rapid growth is therefore a major advantage. First, this study aims to analyze the seed traits variation, and to detect an impact of these traits on the early development of the seedling (environmental maternal effect). Second, we aimed to quantify the respective role of phenotypic plasticity, environmental maternal effect, local adaptation and genetic drift on seedlings phenotype. Variability of seeds from 3 geographical zones (Belgium – Centre of France – South of France) was assessed. We measured the seed variation in mass, length, width, circularity, and pigmentation. Seeds were disposed in growth chamber under two temperature treatments. After two months, we compared seedling phenotypic variation in germination time, height, aboveground biomass, belowground biomass, early competitive performance, and the final leaf area. We found a high variability of seed traits. Seeds were varying significantly among zones, populations, and parents, with more than 30% of the variation attributable to the mother plant identity. The main sources of seedling phenotypic variation appeared to be phenotypic plasticity and environmental maternal effect. No genetic differentiation was detected in this study. Seed mass was positively correlated to seedling biomass, early competitive performance, and the final leaf area. The relevance of traits reflecting environmental maternal effect is discussed. Phenotypic plasticity and seed characteristics appear to play a major role in the invasion success. [less ▲]

Detailed reference viewed: 51 (8 ULg)
Peer Reviewed
See detailDisfuncion ventricular en la infeccion HIV perinatal
Valdes, Eduardo F; Fernandez Rostello, Eduardo; Romero Villanueva, Horacio et al

in Prensa Medica Argentina (1995), 82

We studied cardiovascular function in four babies . There were three females (3, 6 and 9 months old ) and one 6 months old male with HIV perinatal infection (ELISA and Western blot positives). CD4 counts ... [more ▼]

We studied cardiovascular function in four babies . There were three females (3, 6 and 9 months old ) and one 6 months old male with HIV perinatal infection (ELISA and Western blot positives). CD4 counts were: 1150/mm3, 1250 /mm3, 950/mm3 and 1066/mm3 respectively. The first baby had pneumocystosis and oral candidiasis, and two other had bacterial pneumonia and viral brochiolitis as antecedents. We observed after echocardiographic Doppler evaluation right ventricle diastolic dysfunction in three cases. Interestingly there were no pulmonary hypertension. Diastolic and systolic left ventricle function was normal in all babies. Our previous results in 27 AIDS adult patients let us to identify mainly left ventricle dysfunction (Valdes E & al Prensa Medica Argentina 1994). On the contrary, right ventricle dysfunction was predominant in this small series. Lipshultz & al (Am J Cardio 1990) found in 31 perinatal AIDS ventricular dysfunction, myocardial dilatation, arrhythmias and pericardial effusion. Our results combined with a literature review point out cardiac dysfunction as a frequent finding in children with AIDS. As these alterations are not necessarily clinically apparent, we recommend routine echocardiographic evaluation in these patients. Physiopathological clues in AIDS cardiac dysfunction remain elusive: HIV cytotoxic myocardiopathy, opportunistic infections and/or viral autoimmune mechanisms have been considered as potential causes. [less ▲]

Detailed reference viewed: 49 (3 ULg)
Full Text
Peer Reviewed
See detailDisinfectant choices in veterinary practices, shelters and households : ABCD guidelines on safe and effective disinfection for feline environments
Addie, D.D.; Boucraut-Baralon, C.; Egberink, H. et al

in Journal of Feline Medicine and Surgery (2015), 17

Detailed reference viewed: 15 (2 ULg)
See detailDiskrete Modellierung - ein statistischer Ansatz zur detaillierten Beschreibung molekularer Zustände
Wallek, T; Pfleger, M; Pfennig, Andreas ULg

Conference (2013)

Detailed reference viewed: 12 (0 ULg)
See detailDiskrete Modellierung kondensierter Phasen
Wallek, T; Pfleger, M; König, L M et al

Conference (2013)

Full Text
Peer Reviewed
See detailLa dislocation du secteur minier au Katanga (RDC). Pillage ou recomposition?
Rubbers, Benjamin ULg

in Politique Africaine (Paris, France : 1981) (2004), 93

New actors appeared in the mining sector of Katanga, formerly the monopoly of a public corporation, and transformed its relationship to the state and the global economy. By contrast with a legalist ... [more ▼]

New actors appeared in the mining sector of Katanga, formerly the monopoly of a public corporation, and transformed its relationship to the state and the global economy. By contrast with a legalist approach, this article tries to better understand their role in the future of Katanga by following their career in the recent history of the region. [less ▲]

Detailed reference viewed: 98 (2 ULg)
Full Text
See detailDislocation et reconstruction d’un espace européen de la recherche scientifique, 1914-1920
Pirot, Pascal ULg

Scientific conference (2015, May 06)

Detailed reference viewed: 19 (2 ULg)
See detailDislocation et thématisation en français et en néerlandais - L1 et L2
Rasier, Laurent ULg

Scientific conference (2009)

Detailed reference viewed: 36 (2 ULg)
Full Text
Peer Reviewed
See detailDislocations à gauche et nature des subordonnants en Latin classique
Longrée, Dominique ULg; Philippart de Foy, Caroline ULg; Purnelle, Gérald ULg

in Bodelot, Colette; Gruet-Skrabalova, Hana; Trouilleux, François (Eds.) Morphologie, syntaxe et sémantique des subordonnants (2013)

Detailed reference viewed: 135 (18 ULg)
Full Text
Peer Reviewed
See detailDislocations as a Developmental Marker in French Language: A Preliminary Study
Maillart, Christelle ULg; Parisse, Christophe

in Clinical Linguistics & Phonetics (2008), 22(4), 255-258

In a previous study, Parisse suggested that subject dislocations in French language (e.g. "la fille elle dort") could be considered as a marker of morphosyntactic development in children with normal ... [more ▼]

In a previous study, Parisse suggested that subject dislocations in French language (e.g. "la fille elle dort") could be considered as a marker of morphosyntactic development in children with normal language development. The present study aimed to develop this proposition and to confirm it with experimental data, more specifically the fact that this development would go through a four-step process. Our prediction was that children could produce forms that correspond to successive steps in the developmental process (for example, forms [1] and [2], or [2] and [3]), but not forms that were very different (for example, forms [1] and [4], or [2] and [4]). In order to test this hypothesis, a sentence repetition task was administrated to 27 children aged 4 to 5. The results confirm the presence of a developmental trend in the use of dislocation in spontaneous language. At age 4, dislocations were frequent (30%), and tended to respect the gender (stage 3 and 4). At age 5, dislocations were rare (stage 4). Previous stages (1 and 2) would be observed in younger children. [less ▲]

Detailed reference viewed: 49 (9 ULg)
Full Text
Peer Reviewed
See detailDISLOCATIONS AS DEVELOPMENTAL MARKERS IN THE FRENCH LANGUAGE : DEVELOPMENTAL AND PATHOLOGICAL STUDIES
Maillart, Christelle ULg; Parisse, Christophe; Gay-Perret, Nathalie

Poster (2009, June 06)

Detailed reference viewed: 36 (5 ULg)
See detailDismantlement or Reformulation ? The Dialectic of Identity in Liège in the Nineteenth Century
Duchesne, Jean-Patrick ULg; Graulich, Isabelle

in Cortjaens, Wolfgang; De Maeyer, Jan; Verschaffel, Tom (Eds.) Historism and Cultural Identity in the Rhine-Meuse Region. Tensions between Nationalism and Regionalism in the Nineteenth Century (2008)

Detailed reference viewed: 31 (6 ULg)
Full Text
Peer Reviewed
See detailDismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe
Magain, Nicolas; Sérusiaux, Emmanuël ULg

in Mycological Progress (2015), 14:97

In the framework of a worldwide project on the phylogeny of the lichen genus Sticta, dedicated sampling was performed in four regions of Western Europe, roughly along an East-West line between N 48°02’ E ... [more ▼]

In the framework of a worldwide project on the phylogeny of the lichen genus Sticta, dedicated sampling was performed in four regions of Western Europe, roughly along an East-West line between N 48°02’ E 07°01’ and N 52°01’ W 09°30’, ranging from France/Vosges to Ireland/Kerry. Five clearly distinct ITS haplotypes were detected for isidia-producing species where only two were expected. Subtle anatomical and morphological characters, together with a strongly supported 4-loci molecular phylogeny, permit to distinguish, besides the easily recognized S. canariensis and S. limbata: • the two « well-known » S. fuliginosa and S. sylvatica whose type collections have been carefully reassessed; the former is widespread in both hemispheres, while the latter is correctly identified only from continental Europe and the Andes in Colombia; the barcode ITS of S. fuliginosa differs by a single substitution from S. limbata (with a single exception), and the 4-loci phylogenetic tree does not resolve them as distinct lineages, most probably highlighting a very recent divergence and incomplete lineage sorting; • three species that were formely included in S. fuliginosa: the resurrected S. ciliata Taylor, belonging to a complex group yet to be disentangled and occurring in the Neotropics, Africa, Macaronesia and Western Europe, and two species described as new for science, S. fuliginoides, found in continental Europe, the Canary Islands, eastern North America and Colombia, and S. atlantica only known from Ireland and the Azores archipelago. Molecular inferences demonstrate active divergence and dispersion within S. ciliata that may require recognition of further species. Fresh material can be identified with a morphological and anatomical preliminary key provided here. We propose that the taxonomy of all lichen species be urgently reviewed in the light of molecular data in an evolutionary context, particularly those used as bioindicators of environmental change and woodland management. [less ▲]

Detailed reference viewed: 470 (16 ULg)
Full Text
Peer Reviewed
See detail“Dismembered Histories: Slavery and Silence in Dennis Scott’s An Echo in the Bone and Ina Césaire’s Mémoires d’Isles.”
Bada, Valérie ULg

in Journal of the Midwest Modern Language Association (2001)

Detailed reference viewed: 130 (7 ULg)
Full Text
Peer Reviewed
See detailDisney, Danse, Dessin. Une conception chorégraphique de l'animation
Tomasovic, Dick ULg

in Cahiers Robinson (2014), 35

Réflexions sur la conception de l'animation de Walt Disney et approche des productions des studios Disney à travers des catégories conceptuelles issues de l'art chorégraphique.

Detailed reference viewed: 37 (8 ULg)
Full Text
Peer Reviewed
See detailA disorder of axonal development, necrotizing myopathy, cardiomyopathy and cataracts: A new familial disorder
Lyon, Gilles; Arita, Frenando; Le Galloudec, Eric et al

in Annals of Neurology (1990), 27

Detailed reference viewed: 13 (0 ULg)
See detailDisorders of consciousness
Thibaut, Aurore ULg

Scientific conference (2013, January)

Detailed reference viewed: 12 (3 ULg)
Peer Reviewed
See detailDisorders of Consciousness
Bodart, Olivier ULg; Thibaut, Aurore ULg; Laureys, Steven ULg et al

in Citerio, G.; Smith, M.; Kofke, A. (Eds.) Oxford Textbook of neurocritical care (2016)

Detailed reference viewed: 231 (22 ULg)