Cette communication presente les principaux resultats du projet Gravett’Os, qui porte sur materiel anthropologique Sud-Ouest de la France (decouvertes recentes et reprises des collections anciennes) associe au Gravettien (34-24 000 cal BP). Ce a permis l’identification 32 individus provenant 5 sites (Cussac, Fournol, Gargas, Abri Pataud, Cro-Magnon). Nos etudes confortent analyses precedentes c...

Beverage companies sometimes receive reports that cloudy fruit juices have developed a “metallic flavour” when they are exposed to light, which results in consumer complaints. These degradations have been shown to be caused by photooxidation, in which singlet oxygen played an essential role. In the present study, aqueous antioxidants, such as crocin, crocetin, and norbixin, have been investigat...

Measurements of accumulation mode aerosol in the atmospheric boundary layer under cloudy and cloud-free conditions, and in the lower free troposphere under cloud-free conditions, were conducted over the rural northwest of England. Normalised size distributions in the cloud-free Ž . Ž . boundary layer CFBL and the cloud-free free troposphere CFFT exhibited almost identical spectral similarities ...