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The US Congress seems to have taken the threat of catastrophic greenhouse warming under its wing politically. But there is a long way to go before it can decide what to do about it.
Hoyle and Wickramasinghe protest that none of the contributors to recent accounts of the encounters with Halley's comet have referred to them. But they have only themselves to blame.
Reverse haemolytic plaque assays make possible the microscopic visualization of hormone release at the single-cell level. The method can quantify functional differences among hormone secretors of a given type.
This week's review is aimed at the endocrinologist's needs. Selections include microplate manipulators, probes for chemical labelling and microtomes for sample slicing.
