Poll: Half of Americans call Facebook a fad

(AP) -- Half of Americans think Facebook is a passing fad, according to the results of a new Associated Press-CNBC poll. And, in the run-up to the social network's initial public offering of stock, half of Americans also ...

Researchers map Austria's pig trade network for the first time

Every year, around 250,000 transfers of pigs take place in Austria. Each of these transfers carries a certain risk of spreading swine infectious diseases. To identify possible risks of disease spread and develop targeted ...

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