Month: April 2009

Smoking both tobacco and marijuana increases the risk of respiratory symptoms and chronic obstructive pulmonary…

New research points to a potentially significant advance in the treatment of patients undergoing major…

One cell … one initial set of genetic changes — that’s all it takes to…

When dinosaurs evolved oxygen levels were much lower than they are now, so how did…

A leading physicist says aid to Africa needs to be focused on higher education, especially…

The ability of forests to act as massive carbon sinks is under threat as a…

Sleep is such an essential part of human existence that we spend about a third…

The first experimental proof of all-optical ultra-fast communication signal processing with silicon-based devices for transmission…

Researchers have discovered that malaria parasites in east and west Africa carry different resistance mutations,…