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See detailOceanic forcing of Antarctic climate change: A study using a stretched-grid atmospheric general circulation model
Krinner, Gerhard; Largeron, Chloé; Ménégoz, Martin et al

in Journal of Climate (2014), 27

A variable-resolution atmospheric general circulation model (AGCM) is used for climate change projections over the Antarctic. The present-day simulation uses prescribed observed sea-surface conditions ... [more ▼]

A variable-resolution atmospheric general circulation model (AGCM) is used for climate change projections over the Antarctic. The present-day simulation uses prescribed observed sea-surface conditions, while a set of five simulations for the end of the 21st century (2070-2099) under the SRES-A1B scenario uses sea- surface condition anomalies from selected CMIP3 coupled ocean-atmosphere climate models. Analysis of the results shows that the prescribed sea-surface condition anomalies have a very strong influence on the simulated climate change on the Antarctic continent, largely dominating the direct effect of the prescribed greenhouse gas concentration changes in the AGCM simulations. Complementary simulations with idealized forcings confirm these results. An analysis of circulation changes using self-organizing maps shows that the simulated climate change on regional scales is not principally caused by shifts of the frequencies of the dominant circulation patterns, except for precipitation changes in some coastal regions. The study illustrates that in some respects the use of bias-corrected sea- surface boundary conditions in climate projections with a variable-resolution atmospheric general circulation model has some distinct advantages over the use of limited-area atmospheric circulation models directly forced by generally biased coupled climate model output. [less ▲]

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See detailOceanic fronts in the Southern Indian Ocean as inferred from the NOAA SST, TOPEX/POSEIDON and ERS-2 altimetry data
Kostianoy, A.G.; Ginzburg, A.I.; Lebedev, S.A. et al

Poster (2004, November)

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See detailOceanic islands are not sinks of biodiversity in spore-producing plants
Hutsemekers, Virginie ULg; Shaw, A. J.; Szvovenyi, P. et al

in Proceedings of the National Academy of Sciences of the United States of America (2011), 108

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See detailOCEANIC POLYMETALLIC NODULES - A CATALYST FOR HYDROTREATMENT OF PETROLEUM RESIDUES
Dodet, Claude ULg; Noville, Francis ULg; Crine, Michel ULg et al

in Acta Chimica Hungarica-Models In Chemistry (1987), 124(1), 65-72

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See detailOceanic polymetallic nodules : a catalyst for hydrotreatment of petroleum residua
Dodet, Claude ULg; Noville, Francis ULg; Crine, Michel ULg et al

in Acta Chimica Hungarica (1987), 124

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See detailOceanic sources, sinks, and transport of atmospheric CO2
Gruber, Nicolas; Gloor, Manuel; Fletcher, Sara E Mikaloff et al

in Global Biogeochemical Cycles (2009), 23

We synthesize estimates of the contemporary net air-sea CO2 flux on the basis of an inversion of interior ocean carbon observations using a suite of 10 ocean general circulation models (Mikaloff Fletcher ... [more ▼]

We synthesize estimates of the contemporary net air-sea CO2 flux on the basis of an inversion of interior ocean carbon observations using a suite of 10 ocean general circulation models (Mikaloff Fletcher et al., 2006, 2007) and compare them to estimates based on a new climatology of the air-sea difference of the partial pressure of CO2 (pCO(2)) (Takahashi et al., 2008). These two independent flux estimates reveal a consistent description of the regional distribution of annual mean sources and sinks of atmospheric CO2 for the decade of the 1990s and the early 2000s with differences at the regional level of generally less than 0.1 Pg C a(-1). This distribution is characterized by outgassing in the tropics, uptake in midlatitudes, and comparatively small fluxes in the high latitudes. Both estimates point toward a small(similar to -0.3 Pg C a(-1)) contemporary CO2 sink in the Southern Ocean (south of 44 degrees S), a result of the near cancellation between a substantial outgassing of natural CO2 and a strong uptake of anthropogenic CO2. A notable exception in the generally good agreement between the two estimates exists within the Southern Ocean: the ocean inversion suggests a relatively uniform uptake, while the pCO(2)-based estimate suggests strong uptake in the region between 58 degrees S and 44 degrees S, and a source in the region south of 58 degrees S. Globally and for a nominal period between 1995 and 2000, the contemporary net air-sea flux of CO2 is estimated to be -1.7 +/- 0.4 Pg C a(-1) (inversion) and -1.4 +/- 0.7 Pg C a(-1) (pCO(2)-climatology), respectively, consisting of an outgassing flux of river-derived carbon of similar to+0.5 Pg C a(-1), and an uptake flux of anthropogenic carbon of -2.2 +/- 0.3 Pg C a(-1) (inversion) and -1.9 +/- 0.7 Pg C a(-1) (pCO(2)-climatology). The two flux estimates also imply a consistent description of the contemporary meridional transport of carbon with southward ocean transport throughout most of the Atlantic basin, and strong equatorward convergence in the Indo-Pacific basins. Both transport estimates suggest a small hemispheric asymmetry with a southward transport of between -0.2 and -0.3 Pg C a(-1) across the equator. While the convergence of these two independent estimates is encouraging and suggests that it is now possible to provide relatively tight constraints for the net air-sea CO2 fluxes at the regional basis, both studies are limited by their lack of consideration of long-term changes in the ocean carbon cycle, such as the recent possible stalling in the expected growth of the Southern Ocean carbon sink. [less ▲]

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See detailL'océanographie , c'est quoi?
Gobert, Sylvie ULg

Conference given outside the academic context (2012)

Présentation de l'océanographie: définition, notion de base, histoire de l'océanographie à Liège

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See detailOceanological applications of stable isotope ratios
Dauby, Patrick ULg

Scientific conference (1997, November)

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See detailLes océans malades des hommes - Portrait
Devuyst, Paul; Das, Krishna ULg

Article for general public (2009)

Portrait de Krishna Das par Mr Paul Devuyst "Krishna Das, chercheuse au laboratoire d’océanologie de l’Université de Liège, dans le service du professeur Jean-Marie Bouquegneau, s’intéresse aux niveaux et ... [more ▼]

Portrait de Krishna Das par Mr Paul Devuyst "Krishna Das, chercheuse au laboratoire d’océanologie de l’Université de Liège, dans le service du professeur Jean-Marie Bouquegneau, s’intéresse aux niveaux et aux effets des polluants toxiques tels que les métaux lourds et autres composés organiques qui s’accumulent dans les tissus de plusieurs espèces marines de poissons, reptiles, oiseaux et mammifères." [less ▲]

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See detailOcena skutecznosci napraw – wplyw jakosci podkladu betonowego
Czarnecki, Lech; Courard, Luc ULg; Garbacz, Andzej

in Inzynieria i Budownictwo (Engineering and Building Industry) (2007), 12

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See detailThe OCS Molecule. The Photoabsorption Spectrum. The Threshold Photoelectron and CIS-photoelectron Spectra.
Locht, Robert ULg; Hottmann, K.; Baumgärtel, H.

Book published by Berliner Elektronen Speicherring für Synchrotron Strahlung m.b.H (1994)

Using synchrotron radiation the threshold-, the CIS- and the 21.22 eV-photoelectron spectra are reported. This investigation has been completed by recording the VUV photoabsorption spectrum.

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See detailOctarellin VI: using rosetta to design a putative artificial (beta/alpha)8 protein.
Figueroa Yévenes, Maximiliano ULg; Oliveira, Nicolas; Lejeune, Annabelle et al

in PloS one (2013), 8(8), 71858

The computational protein design protocol Rosetta has been applied successfully to a wide variety of protein engineering problems. Here the aim was to test its ability to design de novo a protein adopting ... [more ▼]

The computational protein design protocol Rosetta has been applied successfully to a wide variety of protein engineering problems. Here the aim was to test its ability to design de novo a protein adopting the TIM-barrel fold, whose formation requires about twice as many residues as in the largest proteins successfully designed de novo to date. The designed protein, Octarellin VI, contains 216 residues. Its amino acid composition is similar to that of natural TIM-barrel proteins. When produced and purified, it showed a far-UV circular dichroism spectrum characteristic of folded proteins, with alpha-helical and beta-sheet secondary structure. Its stable tertiary structure was confirmed by both tryptophan fluorescence and circular dichroism in the near UV. It proved heat stable up to 70 degrees C. Dynamic light scattering experiments revealed a unique population of particles averaging 4 nm in diameter, in good agreement with our model. Although these data suggest the successful creation of an artificial alpha/beta protein of more than 200 amino acids, Octarellin VI shows an apparent noncooperative chemical unfolding and low solubility. [less ▲]

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See detailL'octave de la Trinité du calendrier liégeois. Chronologie et liturgie.
Close, Florence ULg

in Moyen Age (Le) (2004), CX(3-4), 627-641

The Pope's increasing authority in the middle of the 11th century led to a change in the relative status of the liturgical feasts that were celebrated in various European dioceses. From the second half of ... [more ▼]

The Pope's increasing authority in the middle of the 11th century led to a change in the relative status of the liturgical feasts that were celebrated in various European dioceses. From the second half of the 11th to the 14th centuries there was a disagreement between those who, according to the Roman custom, considered that the celebration of the Whitsun octave prevailed and those who stood up for the celebration of the Trinity Sunday octave. In order to give each of these feasts its proper solemnity some dioceses in the Holy Empire swapped Trinity Sunday and the Sunday of its octave celebration. The Liège diocese was one of them. Such permutation, wich often went unnoticed, was a frequent source of uncertainty about dates, notably about the original date of Corpus Christi. [less ▲]

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See detailOctreotide (long-acting release formulation) treatment in patients with graves' orbitopathy: clinical results of a four-month, randomized, placebo-controlled, double-blind study.
Wemeau, J. L.; Caron, P.; Beckers, Albert ULg et al

in Journal of Clinical Endocrinology and Metabolism (2005), 90(2), 841-848

There are few effective, safe modalities for the management of Graves' ophthalmopathy (GO), a cell-mediated immune comorbidity of thyroid disease. Somatostatin analogs inhibit lymphocyte proliferation and ... [more ▼]

There are few effective, safe modalities for the management of Graves' ophthalmopathy (GO), a cell-mediated immune comorbidity of thyroid disease. Somatostatin analogs inhibit lymphocyte proliferation and activation, and accumulate in the orbital tissue of patients with GO. A double-blind, placebo-controlled study of a long-acting somatostatin analog [16 wk of long-acting release formulation of octreotide (octreotide-LAR)] was conducted in 51 patients with mild active GO with the aim of preventing deterioration and precluding the need for more aggressive therapeutic modalities, such as glucocorticoids or radiotherapy. No treatment effect was observed for the primary end point (a composite parameter defining the outcome as either success or failure on the basis of changes in class/grade of the severity index and Clinical Activity Scale of GO). The Clinical Activity Scale score was reduced for patients treated with octreotide-LAR, but without any significant difference with respect to patients receiving placebo. However, octreotide-LAR significantly reduced proptosis (as measured by exophthalmometry). This was associated with nonsignificant differences in favor of octreotide-LAR in a series of proptosis-related parameters: class III grade, opening of the upper eyelid, the difference in ocular pressure between primary position and upgaze, and extraocular muscle involvement. By magnetic resonance imaging evaluation the extraocular muscle volumes appeared reduced, but nonsignificantly. No significant correlation between the initial uptake of the somatostatin analog indium-labeled and the response to treatment was observed. One patient in the octreotide-LAR group developed gallstones. In this study, octreotide-LAR did not seem suitable to mitigate activity in mild GO. Surprisingly, it significantly reduced proptosis, one of the most debilitating symptoms of GO. Additional studies are warranted to define the benefit to risk ratio of the somatostatin analogs in this indication. [less ▲]

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See detailL'octréotide LP dans le traitement des ophtalmopathies basedowiennes incipiens : Evaluation prospective VS placebo
Wemeau, J. L.; Caron, P.; Rohmer, V. et al

in XXIème Congrès de la Société Française d'Endocrinologie - Abstract book (2004)

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See detailOculomotor guidance and capture by irrelevant faces
Devue, Christel ULg; Belopolsky, Artem; Theeuwes, Jan

in Plos ONE (2012)

Even though it is generally agreed that face stimuli constitute a special class of stimuli, which are treated preferentially by our visual system, it remains unclear whether faces can capture attention in ... [more ▼]

Even though it is generally agreed that face stimuli constitute a special class of stimuli, which are treated preferentially by our visual system, it remains unclear whether faces can capture attention in a stimulus-driven manner. Moreover, there is a long-standing debate regarding the mechanism underlying the preferential bias of selecting faces. Some claim that faces constitute a set of special low-level features to which our visual system is tuned; others claim that the visual system is capable of extracting the meaning of faces very rapidly, driving attentional selection. Those debates continue because many studies contain methodological peculiarities and manipulations that prevent a definitive conclusion. Here, we present a new visual search task in which observers had to make a saccade to a uniquely colored circle while completely irrelevant objects were also present in the visual field. The results indicate that faces capture and guide the eyes more than other animated objects and that our visual system is not only tuned to the low-level features that make up a face but also to its meaning. [less ▲]

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See detailOcytocine et dépression. Perspective psychoneuroendocrinienne.
Scantamburlo, Gabrielle ULg

in Encéphale (L') (2011), 37

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See detailOcytocine plamsatique et dimensions de personnalité dans la dépression unipolaire
Scantamburlo, Gabrielle ULg; Reggers, Jean; Hansenne, Michel ULg et al

in Encéphale (L') (2010), 36

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See detailOcytocine, hormone altruiste pleine de promesses ?
Scantamburlo, Gabrielle ULg

in Encéphale (L') (2012)

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