Certainly, Silicon Valley, the temple of much of this new money, offers mixed evidence of a philanthropic renaissance.

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So far, there is mixed evidence about whether calorie postings sway nutritional choices.

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Smoking itself has shown mixed evidence, the IOM study found, but this should not be taken as license to smoke, since earlier research has also suggested a link between smoking and an increased risk for breast cancer.

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The European parliament's Economic and Monetary Affairs Committee has heard a mixed bag of evidence from retailing experts across the eurozone.

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Overall the picture across the UK was mixed, with some evidence of a north-south divide re-emerging in England.

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Evidence is mixed on whether these investments are paying off.

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Their choice is interesting, especially since the evidence is mixed at best on whether the big tax cuts on investment income in 2003 did much to help the economy.

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The Oxford Economics team report the evidence is mixed.

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In reply, Dediu argued that the evidence is mixed.

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But even here the economic evidence is mixed.

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Again here the evidence is mixed.

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Here, the evidence is mixed.

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The evidence is mixed.

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Moreover, the evidence of the past is mixed.

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The evidence for the nutrient magnesium was "mixed, " the researchers say.

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The evidence on a potential exodus is "mixed, " he said.

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But evidence of a pervading culture was more mixed.

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One of the things the DNA evidence shows is that all of us are mixed.

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Neil Greig, director of policy at the Institute of Advanced Motorists, said evidence on 20mph areas "now seems very mixed and contradictory".

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Although evidence on the benefits and risks of alcohol is mixed, to be safe I also decided to cut out cocktail hour.

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Currently the evidence that robot surgery offers better clinical outcomes is mixed.

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Thus far, researchers have found little evidence of improvements in the schools serving children living in mixed-income developments.

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But the evidence for the effectiveness of America's bombing campaign remains mixed.

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Prof Kivimaki said the evidence of a direct effect of job strain on the heart was mixed.

BBC: Work stress 'raises heart risk'