But all of them bowed out of the running before the Wednesday deadline, citing excessively restrictive requirements that would prevent an independent review, several candidate researchers said.

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The amount of grass in the bay dropped to levels last reported in 1986, several years after the annual survey began, the researchers said.

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Several early medical-home pilot projects have shown signs of improved quality and patient satisfaction, researchers said.

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The researchers - drawn from several universities including Cambridge, Oxford and Kings's College in London - said the findings should be used to reassure smokers attempting to quit that concerns about increased anxiety levels were unfounded.

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In the original research, he said, he and fellow researchers found a rich human capability to adapt to things like manipulating several virtual limbs at once, using various parts of their real body.

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