THE US National Cancer Institute plans to test nationwide a drug called taihoxifen that might prevent breast cancer, lower the number of deaths from heart attacks and reduce the number of broken

SCIENTISTS are now advocating that harvesting locally used medicinal plants from tropical forests could be more lucrative than clearing the land for farming or growing timber. When compared to other

FEARS of ozone layer depletion have inspired research into refrigeration technologies that do not depend on ozone-destroying chemicals and which may even be more efficient than the