Scientist honored

Vivian Wing-Wah Yam, a professor at the Chemistry Department of the University of Hong Kong, was recently announced among the five laureates of the 2011 L'Oreal-UNESCO Women Scientist Awards, for her contributions in light-emitting materials .

Rapping president

A row has broken out in Uganda over an attempt by President Yoweri Museveni to copyright a "rap" he performed that has become a smash hit. Some say he is trying to cash in on the huge number of Ugandans using it as a mobile phone ring tone.