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See detailDisentangling Positive and Negative Externalities on Two-Sided Markets: the eBay Case
Neysen, Nicolas ULiege; Curchod, Corentin

Conference (2009)

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See detailDisentangling soil from plant methanol exchanges in a maize field: a first step
Bachy, Aurélie ULiege; Mozaffar, Ahsan ULiege; Aubinet, Marc ULiege et al

Poster (2016, June)

This poster presents the current research done in order to disentangle soil from plant methanol exchanges in a maize field. Methanol exchanges were calculated at ecosystem-scale (therefore including both ... [more ▼]

This poster presents the current research done in order to disentangle soil from plant methanol exchanges in a maize field. Methanol exchanges were calculated at ecosystem-scale (therefore including both components). It bases on the following observation: methanol exchanges on bare soil (measured when maize was at germination stage) were as important as when plants were fast growing (and thereby, when the highest methanol plant methanol emissions were expected), and this under similar weather conditions. The goal of this poster is thus to understand why emissions were similar at these two periods. First, it addresses the question of the actual contribution of maize plants in methanol exchanges, by comparing up-scaled methanol exchanges measured on maize at leaf-scale (Mozaffar A.) to those measured at ecosystem-scale. Then, it investigates methanol exchanges mechanisms in order to evaluate how did soil methanol emissions evolve along the maize growing season. At the end of this poster, the hypothesis of decreasing soil methanol emissions along the maize growing season is proposed. [less ▲]

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See detailDisentangling temporal patterns in our perception of the fossil history of gymnosperms
Cascales - Miñana, Borja ULiege

in Historical Biology (2012), 24(2), 143-159

By taking gymnosperms as a case study, this article evaluates the perception of plant life history from the fossil record to test the biases associated with the time-dependent aspects of the taxonomy ... [more ▼]

By taking gymnosperms as a case study, this article evaluates the perception of plant life history from the fossil record to test the biases associated with the time-dependent aspects of the taxonomy, following a stepwise modelling procedure based on two divergent sets of time units. The idea that the effects of the temporal component of paleobiological inference need to be evaluated to remove any possible bias in our interpretation and perception of plant evolution based on analyses of large-scale data sets is investigated. The results reveal important differences in our perception of the tempo of gymnosperm evolution and how it is biased in terms of time unit length due to the loss of information as a consequence of the timescale resolution. Despite singletons representing real morphological diversity translated into independent taxonomic categories, these taxa can distort perceptions of the intensity of the long paleofloristic diversification moments of gymnosperms if their effect is not considered. This study shows a complete overview of the evolutionary profiles of gymnosperms with significant discrepancies in the function of how singletons are quantitatively processed in paleobotanical data analyses, and it provides new evidence about how the 'zoom effect' can magnify our perception of extinction events. © 2012 Copyright Taylor and Francis Group, LLC. [less ▲]

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See detailDisentangling the sources of phenotypic variation in Ambrosia artemisiifolia L.: the role of seed traits
Ortmans, William ULiege; Monty, Arnaud ULiege; Mahy, Grégory ULiege

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 ▲]

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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 ▲]

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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: 82 (2 ULiège)
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See detailDisjunct eddy-covariance as a tool for biogenic volatile organic compounds flux estimation at the ecosystemscale.
Heinesch, Bernard ULiege; Laffineur, Quentin ULiege; Schoon, N. et al

Scientific conference (2011, May 12)

Detailed reference viewed: 34 (8 ULiège)
Peer Reviewed
See detailDisjunctions with moving targets
Dumitru, Magdalena ULiege

Poster (2009, July 30)

Detailed reference viewed: 9 (1 ULiège)
See detailDiskrete Modellierung - ein statistischer Ansatz zur detaillierten Beschreibung molekularer Zustände
Wallek, T; Pfleger, M; Pfennig, Andreas ULiege

Conference (2013)

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See detailDiskrete Modellierung kondensierter Phasen
Wallek, T; Pfleger, M; König, L M et al

Conference (2013)

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See detailLa dislocation du secteur minier au Katanga (RDC). Pillage ou recomposition?
Rubbers, Benjamin ULiege

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 ▲]

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See detailDislocation et reconstruction d’un espace européen de la recherche scientifique, 1914-1920
Pirot, Pascal ULiege

Scientific conference (2015, May 06)

Detailed reference viewed: 23 (2 ULiège)
See detailDislocation et thématisation en français et en néerlandais - L1 et L2
Rasier, Laurent ULiege

Scientific conference (2009)

Detailed reference viewed: 41 (2 ULiège)
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See detailDislocations à gauche et nature des subordonnants en Latin classique
Longrée, Dominique ULiege; Philippart de Foy, Caroline ULiege; Purnelle, Gérald ULiege

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

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See detailDislocations as a Developmental Marker in French Language: A Preliminary Study
Maillart, Christelle ULiege; 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 ▲]

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See detailDISLOCATIONS AS DEVELOPMENTAL MARKERS IN THE FRENCH LANGUAGE : DEVELOPMENTAL AND PATHOLOGICAL STUDIES
Maillart, Christelle ULiege; Parisse, Christophe; Gay-Perret, Nathalie

Poster (2009, June 06)

Detailed reference viewed: 39 (6 ULiège)
See detailDismantlement or Reformulation ? The Dialectic of Identity in Liège in the Nineteenth Century
Duchesne, Jean-Patrick ULiege; 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)

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See detailDismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe
Magain, Nicolas; Sérusiaux, Emmanuël ULiege

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 ▲]

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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 ULiege

in Journal of the Midwest Modern Language Association (2001)

Detailed reference viewed: 195 (10 ULiège)