So the scientists extract the antigens from tumors, purify them, multiply them and then inject them into the patient.

FORBES: In search of antigens

Scientists inject a protein of the novel H1N1 virus into the baculovirus, which can multiply quickly in insect cells.

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Over time, immigrants and their descendants go into so many different fields that the cultural benefits of immigration multiply.

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All of those firms--the excellent, the good and the so-so--compete to place their cash into companies that need large venture investments, and that have the potential to multiply them several times over.

FORBES