R&D activities at firm level in Belgium: when location matters

in Review of Regional Studies (2005)

R&D Collaboration with Uncertain Intellectual Property Rights

in Review of Industrial Organization (2015), 46(2), 183-204

Patent pendencies create uncertainty in research and development (R&D) collaboration, which can result in a threat of expropriation of unprotected knowledge, reduced bargaining power and enhanced search ... [more ▼]

Patent pendencies create uncertainty in research and development (R&D) collaboration, which can result in a threat of expropriation of unprotected knowledge, reduced bargaining power and enhanced search costs. We show that - depending of the type of collaboration partner and the size of the company - uncertain intellectual property rights (IPR) lead to reduced collaboration between firms and can, hence, hinder knowledge production. This has implications for technology policy as R&D collaborations are exempt from antitrust legislation in order to increase R&D in the economy. We argue that a functional IPR system is needed for successful utilization of this policy. [less ▲]

(R)évolutions techniques. Vie économique

in Musée de la Vie Wallonne Guide du visiteur (2011)

An R-package for Finite Mixture Models

Scientific Conference (2013, December 07)

Rabbi Dr. Samuel Hirsch, searching for a concrete realization of his 'Humanität als Religion' in Victorian 'Amerika'

Presentation (2015, March 21)

Rac-1-mediated O2- secretion requires Ca2+ influx in neutrophil-like HL-60 cells

in Cell Calcium (2001), 29(6), 409-15

Neutrophil-like HL-60 cells reacted to N -formyl- l -Methionyl- l -Leucyl- l -P henylalanine (f MLP) with a rise in the intracellular calcium concentration ([Ca2]i), NADPH oxidase activation, and ... [more ▼]

Neutrophil-like HL-60 cells reacted to N -formyl- l -Methionyl- l -Leucyl- l -P henylalanine (f MLP) with a rise in the intracellular calcium concentration ([Ca2]i), NADPH oxidase activation, and increased superoxide anion (O2-) production. [Ca2+]i mobilization and superoxide production were largely dependent on extracellular calcium (Ca2+]e) and a capacitative calcium entry. The monomeric G-protein, Rac-1, regulates NADPH oxidase activity. We tested the effect of removal of Ca2+]e on Rac-1 plasma membrane sequestration and activation of NADPH oxidase using immunodetection and a double labelling fluorescent method. Results showed that Rac-1 activation is mediated via a pertussis toxin (PTX)-sensitive heteromeric G-protein pathway, and that Rac-1 membrane sequestration was preceded by [Ca2+]i mobilization following entry of Ca2+ e. Therefore, we propose that O2- production is dependent on activation of PTX-sensitive G-proteins and sequestration of Rac-1 in the plasma membrane, following entry of Ca2+ e. [less ▲]

Rachat des parts d'un OPC par un autre OPC et respect des obligations professionnelles des sociétés de gestion de portefeuille note sous Commission des sanctions AMF, 30 oct. 2014

in Bulletin Joly Bourse (2015)

Racism and Racialisation as elements in substandard labour relations in Amazonian agriculture

Scientific Conference (2018)

Les radeaux de Lampédouse

Article for general public (2015)

Weekly column on contemporary history ("L'histoire du temps présent") in Luxembourg newspaper Tageblatt, here on refugee crisis and asylum right

Radial processes for sub-Riemannian Brownian motions and applications

in Electronic Journal of Probability (2020), 25(paper no. 97), 1-17

We study the radial part of sub-Riemannian Brownian motion in the context of totally geodesic foliations. Itô's formula is proved for the radial processes associated to Riemannian distances approximating ... [more ▼]

We study the radial part of sub-Riemannian Brownian motion in the context of totally geodesic foliations. Itô's formula is proved for the radial processes associated to Riemannian distances approximating the Riemannian one. We deduce very general stochastic completeness criteria for the sub-Riemannian Brownian motion. In the context of Sasakian foliations and H-type groups, one can push the analysis further, and taking advantage of the recently proved sub-Laplacian comparison theorems one can compare the radial processes for the sub-Riemannian distance to one-dimensional model diffusions. As a geometric application, we prove Cheng's type estimates for the Dirichlet eigenvalues of the sub-Riemannian metric balls, a result which seems to be new even in the Heisenberg group. [less ▲]