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See detailLes marqueurs biologiques de l'arthrose : de la découverte à l'industrialisation
Henrotin, Yves ULg

Scientific conference (2015, December 04)

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See detailNormer le passé en Communauté française
Grandjean, Geoffrey ULg

Scientific conference (2015, December 03)

Detailed reference viewed: 16 (1 ULg)
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See detailGovernor General of the Catholic Netherlands' confessor and Madrid's politics.
Pirlet, Pierre-François ULg

Conference (2015, December 03)

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See detailAssessing the O2 budget under sea ice: An experimental and modelling approach
Moreau, S.; Kaartokallio, H.; Vancoppenolle, M. et al

in Elementa: Science of the Anthropocene (2015), 3(000080),

The objective of this study was to assess the O2 budget in the water under sea ice combining observations and modelling. Modelling was used to discriminate between physical processes, gas-specific ... [more ▼]

The objective of this study was to assess the O2 budget in the water under sea ice combining observations and modelling. Modelling was used to discriminate between physical processes, gas-specific transport (i.e., ice-atmosphere gas fluxes and gas bubble buoyancy) and bacterial respiration (BR) and to constrain bacterial growth efficiency (BGE). A module describing the changes of the under-ice water properties, due to brine rejection and temperature-dependent BR, was implemented in the one-dimensional halo-thermodynamic sea ice model LIM1D. Our results show that BR was the dominant biogeochemical driver of O2 concentration in the water under ice (in a system without primary producers), followed by gas specific transport. The model suggests that the actual contribution of BR and gas specific transport to the change in seawater O2 concentration was 37% during ice growth and 48% during melt. BGE in the water under sea ice, as retrieved from the simulated O2 budget, was found to be between 0.4 and 0.5, which is in line with published BGE values for cold marine waters. Given the importance of BR to seawater O2 in the present study, it can be assumed that bacteria contribute substantially to organic matter consumption and gas fluxes in ice-covered polar oceans. In addition, we propose a parameterization of polar marine bacterial respiration, based on the strong temperature dependence of bacterial respiration and the high growth efficiency observed here, for further biogeochemical ocean modelling applications, such as regional or large-scale Earth System models [less ▲]

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See detailOnset of Streptomyces development: an iron fist dictatorship
Rigali, Sébastien ULg

Conference (2015, December 03)

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See detailANNUAL SCIENTIFIC REPORT - Climate change and Antarctic microbial biodiversity (CCAMBIO)
Tytgat, Bjorn; Willems, Anne; Sweetlove, Maxime et al

Report (2015)

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See detailPotentiels de la carte hydrogéologique de Wallonie : cas concrets.
Bouezmarni, Mohamed ULg; Capette, L.; Rekk, S. et al

Conference (2015, December 03)

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See detailMT4-MMP, a potential prognostic factor in triple negative breast cancer
Yip, Cassandre ULg; FOIDART, Pierre ULg; SOMJA, Joan ULg et al

Scientific conference (2015, December 03)

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See detailAFM study of the penicillin receptor BlaR1 of Bacillus licheniformis
Mescola, Andrea ULg; Dauvin, Marjorie ULg

Poster (2015, December 03)

In presence of β-lactamines, some strains of B. licheniformis secret a β-lactamase that hydrolyses the antibiotic, making the bacteria resistant to penicillin. Staphylococcus aureus possesses a very ... [more ▼]

In presence of β-lactamines, some strains of B. licheniformis secret a β-lactamase that hydrolyses the antibiotic, making the bacteria resistant to penicillin. Staphylococcus aureus possesses a very similar system, allowing the expression of a β-lactamase in response to the presence of antibiotic outside the cell . In both strains, cells are able to sense the antibiotic in the medium through a membrane penicillin receptor BlaR1. Up to now, the 3D structure addressing the receptor in its entire form is not available, mainly due to low production yields and degradation. Here we show production, purification and reconstitution of the entire membrane protein in a lipid bilayer and a first AFM study of intra-molecular forces involved in the activation process of BlaR1. [less ▲]

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See detailFunctional characterization of FRD3,  a citrate transporter, in Arabidopsis relatives
Scheepers, Maxime ULg; Charlier, Jean-Benoit; Spielmann, Julien ULg et al

Poster (2015, December 03)

Transcriptomic studies identified genes which are constitutively over-expressed in A. halleri compared to A. thaliana and which may have a role in metal tolerance or accumulation (1-3). A candidate gene ... [more ▼]

Transcriptomic studies identified genes which are constitutively over-expressed in A. halleri compared to A. thaliana and which may have a role in metal tolerance or accumulation (1-3). A candidate gene encodes FRD3, a member of the MATE family of membrane transporters (56 members in A. thaliana). It is a citrate transporter involved in iron homeostasis (4-6) and playing a role in zinc tolerance in A. thaliana (7). We are aiming to analyse the FRD3 high expression in A. halleri and the FRD3 function in zinc and iron homeostasis in A. thaliana. [less ▲]

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See detailThe return of Turkey to the Western Balkans: a challenge or an opportunity for the European Union?
Lika, Liridon ULg

in Politikon: IAPSS Journal of Political Science (2015)

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