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See detailLes relations communautaires en Belgique: approches politiques et linguistiques
Perrez, Julien ULg; Reuchamps, Min ULg

Book published by L’Harmattan / Academia s.a. (2012)

La Belgique connaît depuis de nombreuses années des tensions ou des conflits, qui sont généralement qualifiés de communautaires. Au cœur de ces relations s’entrechoquent une multitude de représentations ... [more ▼]

La Belgique connaît depuis de nombreuses années des tensions ou des conflits, qui sont généralement qualifiés de communautaires. Au cœur de ces relations s’entrechoquent une multitude de représentations au sein et entre les deux grandes communautés. Ces représentations sont véhiculées mais aussi façonnées et contestées par les discours qu’ils soient politiques, médiatiques ou même citoyens. Alliant science politique et linguistique, l’objectif de ce livre est d’explorer ce qui se cache derrière les mots pour mieux comprendre les tensions et les conflits communautaires. Augmenté de regards croisés du Royaume-Uni, de la Suisse et du Canada, cet ouvrage constitue ainsi un point de rencontre entre linguistes et politologues où chacun tente, à partir de sa discipline, de décrypter les images et métaphores qui révèlent nos représentations politiques. Il offre ainsi un éclairage interdisciplinaire original des relations communautaires en Belgique. [less ▲]

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See detailUne nouvelle cité pour les seniors
Squelard, Gilles ULg

in Garcet, Marc (Ed.) Mixité sociale et progrès humain (2012)

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See detailGreen Algae Genomics: A Mitochondrial Perspective
Rodriguez-Salinas, E; Remacle, Claire ULg; Gonzalez-Halphen, Diego

in Maréchal-Drouard, Laurence (Ed.) Mitochondrial Genome Evolution (2012)

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See detailStudies van de van de Belgische Kring voor Linguïstiek - Travaux du du Cercle Belge de Linguistique - Papers of the Linguistic Society of Belgium
Polis, Stéphane ULg; De Brabanter, Philippe; Cougnon, Louise-Amélie et al

in Studies van de BKL - Travaux du CBL - Papers of the LSB (2012), 7

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See detailEcology and management of Pericopsis elata (Harms) Meeuwen (Fabaceae) populations: a review
Bourland, Nils ULg; Kouadio, Yao Lambert; Fétéké, Fousséni et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(4), 486-498

Pericopsis elata (Fabaceae) is a valuable timber species occurring in moist semi-deciduous African forests. While it is at present substantially reduced, the tree’s natural distribution previously covered ... [more ▼]

Pericopsis elata (Fabaceae) is a valuable timber species occurring in moist semi-deciduous African forests. While it is at present substantially reduced, the tree’s natural distribution previously covered several distinct areas from Côte d’Ivoire to the Democratic Republic of Congo. This species has been logged since the second half of the 20th century. Because it suffers from a lack of regeneration, P. elata is now included in CITES Appendix II and is recorded as “Endangered A1cd” on the IUCN Red List. As with other long-lived light-demanding species, the survival of P. elata may have been favored by important disturbances that occurred in the Congo Basin during the last millennia. While both international trade and industrial uses of the wood of P. elata are well documented, information about its ecology are very sparse or contradictory, and even absent in some cases (e.g., regarding its effective flowering diameter). Furthermore, data describing the management of P. elata are scarce, including potential solutions to compensate for the deficit of natural regeneration. Along the same lines, genetic studies still remain at an early stage and only vague hypotheses have been offered to explain the origins of the tree’s populations. We emphasize the need for new research on those topics. Further studies would be useful in deciding whether P. elata populations can continue to be logged without the species being threatened with extinction. Finally, such research needs to target effective and inexpensive management procedures that could secure the future of the species in a logging context. [less ▲]

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See detailEffect of CO2 activation of carbon xerogels on the adsorption of methylene blue
Páez Martínez, Carlos ULg; Contreras, M. S.; Léonard, Angélique ULg et al

in Adsorption (2012), 18(3-4), 199-211

The effect of physical activation with CO2 of carbon xerogels, synthesized by pyrolysis of a resorcinolformaldehyde aqueous gel, on the adsorption capacities of Methylene Blue (MB) was studied. The ... [more ▼]

The effect of physical activation with CO2 of carbon xerogels, synthesized by pyrolysis of a resorcinolformaldehyde aqueous gel, on the adsorption capacities of Methylene Blue (MB) was studied. The activation with CO2 lead to carbon materials with micropore volumes ranging from 0.28 to 0.98 cm³/g -1 C. MB-adsorption isotherm studies showed that the increase of micropore volume and corresponding surface area led to: (i) a significant improvement in the capacity of MB-adsorption at monolayer coverage, from 212 to 714 mgg -1 C, and (ii) an increase of the binding energy related to Langmuir isotherm constant up to 45 times greater than those of commercial microporous activated carbons used as reference (NORIT R2030, CALGON BPL and CALGON NC35). It is proposed that the increase of the binding energy results from chemical cleaning of the O-groups onto carbon surface as a consequence of CO2-activation, increasing the π-π interaction between MB and graphene layers of the carbon xerogels. Finally, a series of batch kinetics were performed to investigate the effect of CO2-activation conditions on the mechanism of MB-adsorption. Experimental data were fitted using pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models. From pseudo-second-order kinetic model, one observes an increase in the initial rate of MB-adsorption from 0.019 to 0.0565 min -1, by increasing the specific surface area from 630 to 2180 m²/g -1 C via CO2-activation. Depending on the activation degree of the carbons, two different mechanisms control the MB-adsorption rate: (i) at low activation degree, the intraparticle diffusion is the rate-limiting phenomenon, whereas (ii) at high activation degree, the reactions occurring at the solid/liquid interface are the rate-limiting steps. © 2012 Springer Science+Business Media, LLC. [less ▲]

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See detailThe response to copper stress in Streptomyces lividans extends beyond genes under the direct control of a Copper sensitive operon Repressor protein (CsoR)
Dwarakanath, S; Chaplin, AK; Hough, MA et al

in Journal of Biological Chemistry (2012)

A Copper sensitive operon Repressor protein has been identified in Streptomyces livdians (CsoRSl) and found to regulate copper homeostasis with attomolar affinity for Cu(I). Solution studies reveal apo ... [more ▼]

A Copper sensitive operon Repressor protein has been identified in Streptomyces livdians (CsoRSl) and found to regulate copper homeostasis with attomolar affinity for Cu(I). Solution studies reveal apo- and CuI-CsoRSl to be a tetramer assembly and a 1.7 Å resolution crystal structure of apo-CsoRSl reveals that a significant conformational change is necessary to enable Cu(I) binding. In silico prediction of the CsoR regulon was confirmed in vitro (EMSA) and in vivo (RNA-seq) which highlighted that next to the csoR gene itself, the regulon consists of two Cu(I) efflux systems involving a CopZ-like copper metallochaperone protein and a CopA P1-type ATPase. While deletion of csoR has only minor effects on S. lividans development when grown under high copper concentrations, mutations of the Cu(I) ligands decrease tolerance to copper as a result of the Cu(I)-CsoR mutants failing to disengage from the DNA targets, thus inhibiting the derepression of the regulon. RNA-seq experiments carried out on samples incubated with exogenous copper and a ΔcsoR strain showed that the set of genes responding to copper stress is much wider than anticipated and largely extends beyond genes targeted by CsoR. This suggests more control levels are operating and directing other regulons in copper homeostasis beside the CsoR regulon [less ▲]

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See detailBooks and reading, from the earliest times to the eighteenth century
Opsomer, Carmélia ULg

in Demoulin, Bruno (Ed.) A Cultural History of Wallonia (2012)

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See detailL'Année sartrienne, n° 26
Cormann, Grégory ULg

Book published by Groupe d'Etudes Sartriennes international (2012)

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See detailSelf-appraisal and medial prefrontal activation in early stage Alzheimer’s disease.
Genon, Sarah ULg; Collette, Fabienne ULg; Angel, Lucie et al

Conference (2012)

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See detailDe la conservation à la restauration écologique: démarche méthodologique
Bangirinama, F; Hakizimana, P; Bogaert, Jan ULg

in Bulletin Scientifique de l'Institut National pour l'Environnement et la Conservation de la Nature (INECN) (2012), 10

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See detailParticipatory impact assessment of rice parboiling videos with women in Benin
Zossou, Enangnon ULg; Van Mele, Paul; Wanvoeke, Jonas et al

in Experimental agriculture (2012), 48(3), 438-447

Using the sustainable livelihoods framework to evaluate the impact of a farmer-to-farmer video on the improved rice parboiling technology, women in Benin rated financial, social, human, natural and ... [more ▼]

Using the sustainable livelihoods framework to evaluate the impact of a farmer-to-farmer video on the improved rice parboiling technology, women in Benin rated financial, social, human, natural and physical capital stocks for the baseline year (2006) and the impact year (2009) on a 0–5 scale. Women who had watched the video and those who had not, but who lived in the same villages, perceived a significant improvement in four out of five livelihood capitals while processors in control villages did not perceive any significant change. Apart from testing the sustainable livelihoods conceptual framework as a participatory impact assessment tool for video-mediated rural learning, this study shows how farmer-to-farmer training videos helped to improve multiple livelihood assets. [less ▲]

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See detailLes fouilles 2005-2008 à Yafteh et la chronologie radiocarbone
Zwyns, Nicolas; Flas, Damien ULg; Shidrang, Sonia et al

in Otte, Marcel; Shidrang, Sonia; Flas, Damien (Eds.) L’Aurignacien de la grotte Yafteh (fouilles 2005-08) et son contexte / The Aurignacian of Yafteh Cave (2005-08 excavations) and its context (2012)

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See detailPredictive regulatory models in Drosophila melanogaster by integrative inference of transcriptional networks
Marbach, Daniel; Roy, Sushmita; Ay, Ferhat et al

in Genome research (2012), 22(7), 1334--1349

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See detailOrganic matter sources, fluxes and greenhouse gas exchange in the Oubangui River (Congo River basin)
Bouillon, S.; Yambélé, A.; Spencer, R.G.M. et al

in Biogeosciences (2012), 9

The Oubangui is a major tributary of the Congo River, draining an area of 500 000 km2 mainly consisting of wooded savannahs. Here, we report results of a one year long, 2-weekly sampling campaign in ... [more ▼]

The Oubangui is a major tributary of the Congo River, draining an area of 500 000 km2 mainly consisting of wooded savannahs. Here, we report results of a one year long, 2-weekly sampling campaign in Bangui (Central African Republic) since March 2010 for a suite of physicochemical and biogeochemical characteristics, including total suspended matter (TSM), bulk concentration and stable isotope composition of particulate organic carbon (POC and 13CPOC), particulate nitrogen (PN and 15NPN), dissolved organic carbon (DOC and 13CDOC), dissolved inorganic carbon (DIC and 13CDIC), dissolved greenhouse gases (CO2, CH4 and N2O), and dissolved ignin composition. 13C signatures of both POC and DOC showed strong seasonal variations −30.6 to −25.8 ‰, and −31.8 to −27.1 ‰, respectively), but their different timing indicates that the origins of POC and DOC may vary strongly over the hydrograph and are largely ncoupled, differing up to 6‰ in 13C signatures. Dissolved lignin characteristics (carbon- ormalised yields, cinnamyl:vanillyl phenol ratios, and vanillic acid to vanillin ratios) showed arked differences between high and low discharge conditions, consistent with major seasonal ariations in the sources of dissolved organic matter. We observed a strong seasonality in pCO2, ranging between 470 ± 203 ppm for Q<1000m3 s−1 (n = 10) to a maximum of 3750 pm during the first stage of the rising discharge. The low POC/PN ratios, high %POCand low and variable 13CPOC signatures during low flow conditions suggest that the majority of the POC pool during this period consists of in situ produced phytoplankton, consistent with oncurrent pCO2 (partial pressure of CO2) values only slightly above and, occasionally, below atmospheric equilibrium. Water-atmosphere CO2 fluxes estimated using two independent pproaches averaged 105 and 204 gCm−2 yr−1, i.e. more than an order of magnitude lower than current estimates for large tropical rivers globally. Although tropical rivers are often ssumed to show much higher CO2 effluxes compared to temperate systems, we show that in situ production may be high enough to dominate the particulate organic carbon pool, and lower CO2 values to near equilibrium values during low discharge conditions. The total annual flux of TSM, POC, PN, DOC and DIC are 2.33 Tg yr−1, 0.14 TgC yr−1, 0.014 TgNyr−1, 0.70 TgC yr−1, and 0.49 Tg Cyr−1, respectively. While our TSM and POC fluxes are similar to previous stimates for the Oubangui, DOC fluxes were 30% higher and bicarbonate fluxes were 35% ower than previous reports. DIC represented 58% of the total annual C flux, and under the ssumptions that carbonate weathering represents 25% of the DIC flux and that CO2 from espiration drives chemical weathering, this flux is equivalent to 50% of terrestrial-derived riverine C transport. [less ▲]

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See detailNew models for analyzing mast cell functions in vivo.
Marichal, Thomas ULg; Reber, Laurent L; Galli, Stephen J.

in Trends in Immunology (2012), 33(12), 613-25

In addition to their well-accepted role as critical effector cells in anaphylaxis and other acute IgE-mediated allergic reactions, mast cells (MCs) have been implicated in a wide variety of processes that ... [more ▼]

In addition to their well-accepted role as critical effector cells in anaphylaxis and other acute IgE-mediated allergic reactions, mast cells (MCs) have been implicated in a wide variety of processes that contribute to disease or help to maintain health. Although some of these roles were first suggested by analyses of MC products or functions in vitro, it is critical to determine whether, and under which circumstances, such potential roles actually can be performed by MCs in vivo. This review discusses recent advances in the development and analysis of mouse models to investigate the roles of MCs and MC-associated products during biological responses in vivo, and comments on some of the similarities and differences in the results obtained with these newer versus older models of MC deficiency. [less ▲]

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See detailDe la métaphore comme déplacement
Eloy, Céline ULg

in Art Même : Chronique des Arts Plastiques de la Communauté française de Belgique (2012), 54

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See detailTo educate taste with the hand and the mind. Design reform in post-unification Italy (1884-1908)
Pesando, Annalisa; Prina, Daniela ULg

in Journal of Design History (2012), 25(1), 32-54

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See detailA new Devonian flora in Argentina: palaeobotanical and stratigraphic implications
Prestianni, C.; Rustan, J. J.; Vaccan, N. E. et al

Conference (2012)

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