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The Soviet Union (if that name is still meaningful) has replied positively to President George Bush's promise of substantial arms reduction, but that does not mean that the threat of nuclear war has disappeared.
The discovery of penicillin remains one of the greatest advances in medical science. From the success of the discovery the biotechnology industry became established.
A claim to have dealt with problems in quantum electrodynamics in such a way that the subtraction of infinite quantities from each other is avoided should lift the spirits of field theorists everywhere.
The detection and characterization of mutations in genes has become a major area of interest in many areas of biology. Such variation may account for speciation, tumour formation, drug resistance, as well as the more obvious nature of inherited disease.
About 450 exhibitors from 20 countries are expected to attend Biotechnica '91, the International Trade Fair for Biotechnology that is to be held 22–24 October in Hannover, Germany. A new gel capillary for capillary electrophoresis and an inverted confocal microscope are among the exhibits.
