30/04/2015

Les musulmans en Suisse

20258720-muslim-young-woman-wearing-hijab-on-white.jpgPas un seul jour ne passe sans qu’un média ne mentionne un fait d’actualité concernant les musulmans: situation politique internationale au Moyen-Orient, conflit israélo-palestinien, terrorisme islamique, révolutions arabes, événements survenus en Suisse et en Europe illustrant ou faisant état de (supposés) problèmes d’intégration, tels que la propension de certains jeunes musulmans (souvent des convertis) à se dédier au jihad, les discriminations subies par des femmes musulmanes, le port de signes religieux ostentatoires et en contradiction avec le principe de laïcité ou, plus généralement, les valeurs démocratiques.

 

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07/03/2012

Solar thermal technology in building

8993613-3d-illustration-of-men-installing-solar-panels.jpgAlthough the solar thermal technology is mature with competitive prices, it is not yet playing the important role it deserves in the reduction of buildings’ fossil energy consumption. The generally low architectural quality characterizing existing building integrations of solar thermal systems pinpoints the lack of design as one major reason for the low spread of the technology. As confirmed by the example of photovoltaics, an improvement of the architectural quality of building integrated systems can increase the use of a solar technology even more than price reductions and technical advances. As opposed to electricity produced by photovoltaics, heat is very sensitive to transportation losses. Therefore solar thermal collectors have to be mounted very near to the consumption place – i.e., on the building itself – making it even more urgent to correctly address the architectural integration issue.

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