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See detailA quorum-sensing regulator controls expression of both the type IV secretion system and the flagellar apparatus of Brucella melitensis.
Delrue, Rose-May; Deschamps, Chantal; Leonard, Sandrine et al

in Cellular Microbiology (2005), 7(8), 1151-61

Both a type IV secretion system and a flagellum have been described in Brucella melitensis. These two multimolecular surface appendages share several features. Their expression in bacteriological medium ... [more ▼]

Both a type IV secretion system and a flagellum have been described in Brucella melitensis. These two multimolecular surface appendages share several features. Their expression in bacteriological medium is growth curve dependent, both are induced intracellularly and are required for full virulence in a mouse model of infection. Here we report the identification of VjbR, a quorum sensing-related transcriptional regulator. A vjbR mutant has a downregulated expression of both virB operon and flagellar genes either during vegetative growth or during intracellular infection. In a cellular model, the vacuoles containing the vjbR mutant or a virB mutant are decorated with the same markers at similar times post infection. The vjbR mutant is also strongly attenuated in a mouse model of infection. As C(12)-homoserine lactone pheromone is known to be involved in virB repression, we postulated that VjbR is mediating this effect. In agreement with this hypothesis, we observed that, as virB operon, flagellar genes are controlled by the pheromone. All together these data support a model in which VjbR acts as a major regulator of virulence factors in Brucella. [less ▲]

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See detailLes quotas
Stone, Pete; Cornet, Annie ULg; Cusumano, Christophe ULg

in Peretti, Jean Marie (Ed.) L'encyclopédie de la Diversité: regards croisés (2012)

Within the framework of policies to promote the diversity, the use of quota is more and more discussed, what besides brings to the foreground tensions about this issue. There is no uniform model about ... [more ▼]

Within the framework of policies to promote the diversity, the use of quota is more and more discussed, what besides brings to the foreground tensions about this issue. There is no uniform model about that in the European countries. This article realizes an inventory of fixtures, in Belgium and in France, on the laws concerning the usage of the quota and the arguments (positive and negatives) in this issue. This research participates to show that the development of the quote in Europe joins in the passage of a regulation " soft law " towards one " hard law ". [less ▲]

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See detailR en 30 minutes
Ligot, Gauthier ULg

Learning material (2011)

R basics

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See detailR&D, technological progress and efficiency change in industrial activities
Perelman, Sergio ULg

in Review of Income and Wealth (1995), (41), 349-366

The objective of this paper is to estimate total factor productivity growth (TFP) in an international and sectoral setting using two alternative approaches based on the estimation of parametric stochastic ... [more ▼]

The objective of this paper is to estimate total factor productivity growth (TFP) in an international and sectoral setting using two alternative approaches based on the estimation of parametric stochastic frontiers and non-parametric production frontiers (DEA). The TFP is decomposed into two components, technological progress and efficiency change, that can also be interpreted as the results of the innovation and catching-up process, respectively. Finally their relationship is tested with a set of potential explanatory variables that includes R&D expenditures, international competition, and structural characteristics. It appears that the distinction between technological and efficiency performances does matter and must be taken into account in the design of industrial policy. [less ▲]

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See detail(R)-4-phenyloxazolidin-2-thione: an efficient chiral auxiliary for [4+2] cycloaddition of 1-aminodienes and activated phosphonodienophiles
Monbaliu, Jean-Christophe ULg; Robiette, Raphaël; Peeters, Daniel et al

in Tetrahedron Letters (2009), 50

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See detail(R)évolutions dans la gestion des eaux de surface
Dewals, Benjamin ULg

Scientific conference (2012, January 23)

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See detailR-HuEPO hyporesponsiveness - who and why ?
Danielson, B.; Beguin, Yves ULg; Bommer, J. et al

in Nephrology Dialysis Transplantation (1995), 10

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See detailR-parity violating sneutrino decays
Aristizabal Sierra, Diego ULg; Hirsch, M.; Porod, W.

in Journal of High Energy Physics [=JHEP] (2005), 0509

R-parity can be violated through either bilinear and/or trilinear terms in the superpotential. The decay properties of sneutrinos can be used to obtain information about the relative importance of these ... [more ▼]

R-parity can be violated through either bilinear and/or trilinear terms in the superpotential. The decay properties of sneutrinos can be used to obtain information about the relative importance of these couplings provided sneutrinos are the lightest supersymmetric particles. We show that in some specific scenarios it is even possible to decide whether bilinear or trilinear terms give the dominant contribution to the neutrino mass matrix. [less ▲]

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See detailR. Hunter, Critical Moments in Classical Literature. Studies in the Ancient View of Literature and Its Uses, Cambridge, University PRESS, 2009.
Caneva, Stefano ULg

in Athenaeum : Studii Periodici di Letteratura e Storia (2012), 100. I-II

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See detailR. Sacré, « Les Negro Spirituals et les Gospel Songs »
Pirenne, Christophe ULg

in Cahiers de Clio (1994), 119

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See detailR. Sacré, « Musiques Cajun, Créole et Zydeco »
Pirenne, Christophe ULg

in Revue de la Société liégeoise de Musicologie (1996), 4

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See detailR.P.D.B. Tome XI, Complément : Pourvoi en cassation en matière civile
Boularbah, Hakim ULg; Gerard, P; van Drooghenbroeck, J.-F.

in P.P.D.B., Tome XI (2011)

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See detail(R/S)-3-(3-Methyl-2-butylamino)-4H-pyrido[4,3-e]-1,2,4-thiadiazine 1,1-dioxide mono-hydrate
Dupont, L.; De Tullio, Pascal ULg; Tinant, B. et al

in Acta Crystallographica (2001), E57

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See detailThe R304X mutation of the Aryl hydrocarbon receptor Interacting Protein gene in familial isolated pituitary adenomas: mutational Hot-Spot or founder effect?
Occhi, G.; Jaffrain-Rea, M. L.; Trivellin, G. et al

in Journal of Endocrinological Investigation (2010), 33

Background: Mutations in the Aryl hydrocarbon receptor Interacting Protein (AIP) gene have been described in about 15% of kindreds with Familial Isolated Pituitary Adenomas (FIPA) and in a minority of ... [more ▼]

Background: Mutations in the Aryl hydrocarbon receptor Interacting Protein (AIP) gene have been described in about 15% of kindreds with Familial Isolated Pituitary Adenomas (FIPA) and in a minority of early onset sporadic pituitary adenomas (PA). Among the AIP mutations reported so far, the R304X (AIPR304X) represents, together with the "Finnish mutation" Q14X, the most common one. Methods: Three AIPR304X Italian families, including a newly reported kindred, have been genotyped for 12 genetic markers surrounding the AIP gene in order to look for a potential founder effect in Italy. Disease penetrance and genotype-phenotype correlations were also addressed. Results: Analysis of chromosome 11' genetic markers revealed a common haplotype in two AIPR304X kindreds originating from central Italy. Overall, seventeen mutations carriers were identified, including 7 patients and 10 unaffected subjects, respectively, arguing in this case for a disease penetrance of 41%. Mean age at diagnosis was 19.1+/-6.7 years-old, with females tending to be older than males. Though most PA were somatotropinomas (6/7), a great variability in disease severity was observed, even between subjects sharing the same at-risk haplotype. Conclusion: These data provide strong evidence for a new founder effect of the AIPR304X mutation in central Italy and the observed variations in disease severity point out the role of additional genetic or environmental factors in such kindreds. [less ▲]

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See detailThe rabbit left ventricle modeling at the cellular scale: application to flow-clamp experiments
Kosta, Sarah ULg; Pironet, Antoine ULg; Dauby, Pierre ULg

in Proceedings of the 11th Belgian National Day on Biomedical Engineering (2012, December)

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See detailRaccontare nel tempo. Narrazione epica e cronologia nelle Argonautiche di Apollonio Rodio
Caneva, Stefano ULg

in Caneva, Stefano; Tarenzi, Victoria (Eds.) Il lavoro sul mito nell’epica greca. Letture di Omero e Apollonio (2007)

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See detailRaccontare Zeus. Poesia e cultura di corte ad Alessandria, a partire dall’Inno I di Callimaco
Caneva, Stefano ULg

in Pallas : Revue d'Etudes Antiques (2010), 83

Detailed reference viewed: 33 (3 ULg)