[Prescription of physical activity by general practitioners: The Biarritz Côte Basque Sport Santé experience].

Introduction: Physical inactivity represents a public health challenge because it is associated with an increased risk of chronic disease and premature death. The prescription of physical activity (PA) by general practitioners in the context of sports clubs was used to fight against physical inactivity.

Methods: Since May 2015, the Biarritz Côte Basque Sport Santé (BSS) association has proposed a primary prevention scheme based on physical activity prescribed by a panel of voluntary general practitioners designed for inactive persons with no significant chronic diseases.

From hydrogenases to noble metal-free catalytic nanomaterials for H2 production and uptake.

Interconversion of water and hydrogen in unitized regenerative fuel cells is a promising energy storage framework for smoothing out the temporal fluctuations of solar and wind power. However, replacement of presently available platinum catalysts by lower-cost and more abundant materials is a requisite for this technology to become economically viable. Here, we show that the covalent attachment of a nickel bisdiphosphine-based mimic of the active site of hydrogenase enzymes onto multiwalled carbon nanotubes results in a high-surface area cathode material with high catalytic activity under the strongly acidic conditions required in proton exchange membrane technology.