[Relevance of fluoroquinolones prescriptions in medical service].

Introduction: Fluoroquinolones (FQ) are antibiotics which favour the emergence of resistance and remain widely prescribed in the French hospital environment. A focus of prescription recommendation was published by the French Infectious Diseases Society (SPILF) in 2015 in order to preserve their use. The pneumology-oriented medical service of Salon de Provence's hospital had high FQ consumption for the year 2015; thus a relevant assessment of prescriptions was carried out.

Construction of a synthetic metabolic pathway for biosynthesis of the non-natural methionine precursor 2,4-dihydroxybutyric acid.

2,4-Dihydroxybutyric acid (DHB) is a molecule with considerable potential as a versatile chemical synthon. Notably, it may serve as a precursor for chemical synthesis of the methionine analogue 2-hydroxy-4-(methylthio)butyrate, thus, targeting a considerable market in animal nutrition. However, no natural metabolic pathway exists for the biosynthesis of DHB.

Four GH11 xylanases from the xylanolytic fungus Talaromyces versatilis act differently on (arabino)xylans.

The filamentous fungus Talaromyces versatilis produces a wide range of cellulolytic and hemicellulolytic enzymes such as xylanases. The recent accessibility to the T. versatilis genome allows identifying two new genes, xynE and xynF, encoding glycoside-hydrolases from family GH11.

Powered two-wheelers road accidents and their risk perception in dense urban areas: case of Paris.

For a few years, the use of powered two-wheelers has taken off in Paris. It then became critical for the City of Paris to understand both the mechanisms leading to traffic accidents involving at least one powered two-wheelers user and the perception of their risk when riding in dense urban areas. In so doing, two studies were carried out along similar lines so that their results could be compared.