But the relevant sample size for many purposes for instance, measuring the uncertainty of the analysis is 33, the number of clusters.

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He showed that just as the bad amyloid-42 sped the formation of amyloid clusters, so a small number of pathological prions could convert good prions to the dark side, at least in test-tube experiments.

FORBES: Health

The organization said that involved 1, 849 households in 47 clusters, a lower number of samples than the new study.

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Typically an innovation index will use solid, reliable and traditional metrics like numbers of patents registered, number of third and fourth level maths and engineering graduates leaving university, and the existence of industry clusters.

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In July 2011 Mr Sargeant said he wanted to cut the number of Communities First projects, creating fewer and bigger "clusters".

BBC: Local Government Minister Carl Sargeant

The event kicked off a week that is synonymous with art and parties, as most of the art world clusters poolside for Art Basel, the Miami Beach edition, year number ten.

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