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See detailLate Quaternary evolution of sediment provenances in the Central
Fagel, Nathalie ULiege; Not, Christelle; Gueibe, Jonathan et al

in Quaternary Science Reviews (2014), 92

Mineral assemblage, trace element content and Nd and Pb isotope signatures were analysed on the fine fraction (<20 mm) of sedimentary records from the Northern Mendeleev Ridge in the Central Arctic Ocean ... [more ▼]

Mineral assemblage, trace element content and Nd and Pb isotope signatures were analysed on the fine fraction (<20 mm) of sedimentary records from the Northern Mendeleev Ridge in the Central Arctic Ocean. Our aimwas to identify the detrital particle provenance and to interpret the changes over the past w250 ka in the relative contribution of the different source-areas in relation to paleoenvironmental conditions. The clay mineral assemblage and the Nd and Pb isotope signatures depict systematic changes over the Late Quaternary. The bulk mineralogy exhibits increases in the relative contribution of carbonate minerals vs. silicates in interglacial/deglacial intervals. In glacial intervals, the mineral assemblage of the <20 mm fraction is characterised by an enrichment in kaolinite, counterbalanced by a decrease in illite. The Nd and Pb isotope signatures of <20 mm fraction are interpreted using a three end-member mixing model, involving crustal supplies from North America and Canada, from the Siberian margin and some from volcanic material. A compilation of geochemical signatures of geological terraines surrounding the Arctic Ocean allowed each end-member to be assigned a representative signature, averaging the signal of the eroded terraines. The Suspended Particulate Matter (SPM) of the MacKenzie River represents an average signature of the sedimentary supplies delivered from the North American platform and Canadian margin. The SPM of the Lena River reflects the mean sedimentary signature of the Siberian platform. The Okhotsh-Chukotka province from the Eastern border of Siberia is identified as the most probable volcanic source. Late Quaternary evolution of the estimated relative contribution of the three end-members confirms that the sediment provenances in the Central Arctic Ocean remain close to the current conditions during past interglacials/deglacials MIS1e3, MIS5/TII and MIS7/TIII. In contrast, glacial conditions (MIS4 and MIS6) record minimum supplies from the American margin, associated with increased volcanic contribution, to the Mendeleev Ridge core location suggesting a different sea-ice circulation associated with a low sea-level and reduced shelf area. [less ▲]

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See detailThe Late Quaternary History of Biogeochemical Cycling of carbon
Pedersen; François, R.; François, Louis ULiege et al

in Alverson, K. D.; Bradley, R. S.; Pedersen, T. F. (Eds.) Paleoclimate, Global Change and the Future (2003)

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See detailLate Quaternay sedimentation and active faulting in the Western tip of the Gulf of Corinth, Greece
Hubert, Aurelia ULiege; Beckers, Arnaud ULiege; Beck, Christian et al

Poster (2013, November 06)

The Gulf of Corinth is one of the fastest-spreading intracontinental rifts on Earth. Present day kinematics (GPS data) indicates an opening direction oriented NNE-SSW and an opening rate increasing ... [more ▼]

The Gulf of Corinth is one of the fastest-spreading intracontinental rifts on Earth. Present day kinematics (GPS data) indicates an opening direction oriented NNE-SSW and an opening rate increasing westward from 11 mm y-1 in the central part to 16 mm y-1 in the westernmost part. A significant part of the deformation is localized offshore, where the fault geometry was not well known yet. The high extension rate would imply a high seismic hazard if faults are not creeping. We propose an accurate map of submarine faults in the western extremity of the Gulf of Corinth. The map is based on two high-resolution seismic reflection surveys (single channel sparker) performed aboard HCMR’s R/V ALKYON, within the frame of SISCOR ANR Project. About 600 km of seismic lines were acquired, with a 200 msTWTT maximum penetration down to what we infer to represent the MIS 5 discontinuity. Depocenters location is controlled by river deltas where up to 75m of post-LGM sediments are stored. Numerous, up to 15m thick, mass transport deposits fill the central and eastern parts. In the eastern part, the sedimentary infill is faulted by the known North Eratini, South Eratini and West Channel faults. At the longitude of the Trizonia Island, the seafloor in mainly horizontal and the only fault is the south dipping Trizonia fault. Between the Trizonia Island and the Mornos Delta, the shallower northern part of the gulf shows a diffuse pattern of deformation with faults striking mainly E-W and ESE-WNW. It shows south and north dipping normal faults, strike-slip faults, as well as an inherited basement relief. To the West, three young grabens have been identified, striking NE-SW and W-E. The northern, 6 km long, fault in this grabens system shows a clear strike-slip component (fig.1). [less ▲]

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See detailLate Recurrence of Ischemic Mitral Regurgitation after Restrictive Annuloplasty: Is LV Remodeling the Sole Mechanism?
Sénéchal, M; Magne, Julien ULiege; Dumesnil, JG et al

Conference (2007)

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See detailLate Rupture of a Saphenous Vein Aortorenal Graft
Lavigne, Jean-Paul ULiege; Keppenne, Véronique ULiege; Limet, Raymond ULiege

in Journal of Vascular Surgery (1999), 29(4), 722-3

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See detailLate Tournaisian (Carboniferous) brachiopods from Mouydir (Central Sahara, Algeria)
Mottequin, Bernard ULiege; Legrand-Blain, Marie

in Geological Journal (2010), 45

A small-sized brachiopod fauna, representing an orthid, rhynchonellid and spiriferid community which lived in a low-energy environment, is reported from the lower part of the Argiles de Teguentour and was ... [more ▼]

A small-sized brachiopod fauna, representing an orthid, rhynchonellid and spiriferid community which lived in a low-energy environment, is reported from the lower part of the Argiles de Teguentour and was collected around Oued Tamertasset (or Temertasset) and Oued Habadra in north-western Mouydir (Algerian Sahara). Associated goniatites indicate an early Late Tournaisian age (Pericyclus–Progoniatites assemblage). Thirteen brachiopod species belonging to 12 genera and 5 orders (Productida, Orthida, Rhynchonellida, Athyridida and Spiriferida) are described. Mouydirhynchus is proposed as a new rhynchonellid genus and the species Rhipidomella prolifica, Mouydirhynchus quietus and Eomartiniopsis mouydirensis are new. The other described taxa are the following: Chonetipustula? sp., strophalosioid gen. et sp. indet., Schizophoria sp., trigonirhynchiid gen. indet. sp. A, trigonirhynchiid gen. indet. sp. B, Hemiplethorhynchus? sp., Coveenia? sp., Crurithyris cf. fissa, Punctothyris? sp., and elythid gen. et sp. indet. [less ▲]

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See detailThe Late Viséan Rugose coral association of NW Turkey
Denayer, Julien ULiege

in Bernecker, Michaela (Ed.) 12th International Symposium on Fossil Cnidaria and Porifera 2015 - Abstract Volume (2015, February)

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See detailLate-Holocene moist forests of Central Africa: contribution of charcoal analysis
Morin, Julie ULiege; Bremond, Laurent; Gillet, Jean-François et al

Poster (2014, December)

Wood charcoals are often uncovered in the soils of the tropical regions. They remain little studied, however, and this observation is even truer for charcoals coming from the dense humid forests of ... [more ▼]

Wood charcoals are often uncovered in the soils of the tropical regions. They remain little studied, however, and this observation is even truer for charcoals coming from the dense humid forests of Central Africa. Here we aim at showing the interest of the analysis of soil charcoals in this region so as to understand the dynamics of past forest environments during the late-Holocene. Several examples of taxonomical identifications conducted on charcoals sampled in soil pits in Cameroon and in the Republic of the Congo are presented along with radiocarbon dates. These charcoals were hand-split then observed under an incident light microscope. The wood anatomical features that were preserved in charcoals and described according to a standard method were compared to a reference collection of woods. Results demonstrated that past burnings that spanned from 2,500 BP to Recent were human-induced and scattered in the study area. The identified species are still present in the environment today and localized changes in the vegetation occurred over the past two millennia. Charcoal analysis can thus allow a better understanding of the past history of the tropical forests in relationship with the ancient anthropogenic disturbances. [less ▲]

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See detailLate-Holocene tropical moist-forests of southeastern Cameroon: some insight from soil charcoal analysis
Morin, Julie ULiege; Biwolé, Achille; Bourland, Nils et al

Conference (2015, August)

Tropical forests of Central Africa constitute the second most important block of moist forest of the world. Little is known, however, about past vegetation in this region that remains underexplored ... [more ▼]

Tropical forests of Central Africa constitute the second most important block of moist forest of the world. Little is known, however, about past vegetation in this region that remains underexplored (Vleminckx et al. 2014; Morin-Rivat et al. 2014). Determining the past specific composition of these forests could allow bringing insights into their evolution over time and providing data about their resilience capacity facing global change. We performed a pedoanthracological analysis in the semi-deciduous forests of southeastern Cameroon. We excavated 53 test pits of 53 50 × 50 × 60 cm in plots of botanical inventory along a NS 80-km long mega-transect that followed a vegetation gradient. We sorted and quantified charred macrobotanical remains by layers of 10 cm, then identified species from wood charcoals. We used the InsideWood database, implemented with 163 new anatomical descriptions of woods present in the study area by using the reference collection of African woods of the Royal Museum for Central Africa (Belgium). Finally, we obtained 25 radiocarbon dates on charcoals and oil palm endocarps. Results showed that repeated fire events occurred across the study area during the last 2500 years, soon after the well-documented “rainforest crisis” (e.g. Lézine et al. 2013). The analyzed charcoals are likely human-induced regarding evidence of associated human settlements (e.g. potsherds). Aged were distributed into two time periods: the Early Iron Age (2300-1300 BP) and the Late Iron Age (700-100 BP) with an intermediate hiatus in human occupation (see e.g. Wotzka 2006; Morin-Rivat et al. 2014). Specific composition during both periods did not strongly differ from current composition, which is now dominated by light-demanding canopy trees belonging to old-growth semi-deciduous Celtis forests (Gond et al. 2013; Fayolle et al. 2014). This argues in favor of the maintenance of light-demanding tree species by anthropogenic activities, such as slash-and-burn shifting cultivation. We conclude that moist forests have a good resilience capacity regarding moderate and scattered disturbances. These forests can nonetheless be deeply impacted by land-use intensification (e.g. degraded forests along roads and close to cities; Gond et al. 2013). [less ▲]

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See detailDie lateinischen Papyri als Quellen des Vulgärlateins
Macedo, Gabriel ULiege

Scientific conference (2013, May 08)

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See detailLatence du potentiel global d’action musculaire du muscle 1er interosseux dorsal de la main
Kaux, Jean-François ULiege; Dive, Dominique ULiege; Wang, François-Charles ULiege

in Lettre du Neurologue (La) : le Courrier du Spécialiste (2011), XV(1), 21-23

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See detailLatency and Reactivation of a Glycoprotein E Negative Bovine Herpesvirus Type 1 Vaccine: Influence of Virus Load and Effect of Specific Maternal Antibodies
Lemaire, Mylène; Schynts, Frédéric; Meyer, Gilles et al

in Vaccine (2001), 19(32), 4795-804

The effects of the vaccination of neonatal calves with a glycoprotein E (gE)-negative bovine herpesvirus type 1 (BHV-1) were investigated in naive and passively immunised calves either with the ... [more ▼]

The effects of the vaccination of neonatal calves with a glycoprotein E (gE)-negative bovine herpesvirus type 1 (BHV-1) were investigated in naive and passively immunised calves either with the recommended dose or a 5-fold concentrated one. After inoculation (PI), all calves excreted the virus vaccine except three passively immunised calves inoculated with the lower titre. No antibody response could be detected in passively immunised calves, whatever the dose used, and they all became BHV-1 seronegative and remained so after dexamethasone treatment (PDT). Nevertheless, as shown by a gamma-interferon assay, all calves that excreted the vaccine PI developed a cell-mediated immune response and a booster response was observed PDT, suggesting viral reactivation. The vaccine virus was recovered PDT from nasal secretions in two calves and BHV-1 DNA were detected in trigeminal ganglia from five calves belonging to all inoculated groups. The results show that the BHV-1 gE-negative vaccine can establish latency not only in naive but also in passively immunised neonatal calves after a single intranasal inoculation. Moreover, this study shows for the first time that the gE-negative vaccine, when used in passively immunised calves, can lead to seronegative vaccine virus carriers. [less ▲]

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See detailLatency of Pigeon herpesvirus 1 (PHV 1)
Vindevogel, Henri ULiege; Pastoret, Paul-Pierre ULiege; Thiry, Etienne ULiege

in Wittmann, G.; Gaskell, R. M.; Rziha, H. J. (Eds.) Latent herpesvirus infections in veterinary medicine (1984)

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See detailLatent Bovine Herpesvirus 1 Infection in Calves Protected by Colostral Immunity
Lemaire, Mylène; Meyer, Gilles; Ernst, E. et al

in Veterinary Record : Journal of the British Veterinary Association (1995), 137(3), 70-1

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See detailLatent class evaluation of three serological tests for the diagnosis of human brucellosis in Bangladesh
Rahman, AKMA; Saegerman, Claude ULiege; Bervens, D

in Tropical Medicine and Health (2016), 44

Detailed reference viewed: 17 (1 ULiège)