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The prospect that North Korea will talk about its nuclear ambitions is the best outcome possible. The need is for a package of assistance to wean it (and others) away from bombs.
As a first step towards a new form of male contraception - sperm cryopreservation, vasectomy and eventual artificial insemination - the military services should begin a large-scale sperm cryopreservation programme.
An ingenious account of the protein-folding problem turns the usual formulation on its head, yielding the suggestion that foldability is an evolutionary necessity.
New in the microscopy/image analysis marketplace — a transmission electron microscope for the non-specialist, an advanced fluorescent in situ hybridization system and an upgraded version of software for intracellular ion imaging.
