A metric prefix is a numerical multiplier that is placed before a basic unit of measure to indicate a specified multiple ... So a gigahertz is GHz and a femtosecond is fs. Conversions between metric ...

The waist-to-hip ratio (WHR) measures the ratio of your waist circumference to your hip circumference. It can help determine how much fat is stored on your waist, hips, and buttocks. The waist-to ...

State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China ...