The year long cholera epidemic in Peru refocussed scientific attention worldwide on the causes of the disease and the various strains of cholera bacteria.

PLANT breeders at the International Institute of Tropical Agriculture in Nigeria have developed a high-yielding variety of cassava that will be able to withstand even drought conditions. Cassava, a

PROLONGED use of chlorinated drinking water can cause cancer, says a study by scientists at the Indian Council for Medical Research (ICMR). When chlorine gas reacts with naturally occurring organic

SOUND waves can be used to measure factory emissions, say scientists at the Open University in UK. Pollution monitoring systems using light waves are often inadequate and direct sampling of air

SURGEONS may soon be able to call upon living micro-organisms to fight tumours that cannot be reached by the surgeon's scalpel. US scientists are proposing a new form of "molecular surgery" involving

KODAK is about to launch a L 30-million photo compact disc (CD) campaign in which ordinary snapshots can be stored on special compact discs and then flashed on the television. The player works in a

A RECENT study published in the Annals of Internal Medicine has established that women with osteoporosis suffered fewer fractures after treatment with estrogen. Osteoporosis is a potentially

SCIENTISTS have discovered that celery, which was used as a herbal remedy in ancient times, contains a chemical that may lower blood pressure. A University of Chicago Medical Centre team found

AGRIDYNE Technologies, a US biotechnology company, recently announced a major project involving the genetic-engineering of pyrethrins, an insecticidal compound derived from the pyrethrum flower (

Sunlight can be used to treat cancer using a method developed by University of Tokyo researchers. Their method focusses sunlight on the cancer-affected areas using optical fibres. The