引自

Science 23 December 2011:
Vol. 334 no. 6063 p. 1628
DOI: 10.1126/science.334.6063.1628



WINNER



HIV Treatment as Prevention
J. Cohen

The antiretroviral drugs used to treat HIV-infected people also dramatically reduce HIV transmission rates, a finding that may influence the strategies used by health advocates and policymakers to battle the disease.



剩下九个runner-up

This year's runners-up for Breakthrough of the Year include

what makes asteroids red

Japan's Hayabusa spacecraft brought back the solution to the mystery of the source of Earth's most common meteorites.

ancient DNA in modern humans

Most living people carry bits of archaic DNA, suggesting that our ancestors mated with other archaic peoples.

the structure of photosystem II

This year, researchers in Japan mapped the structure of photosystem II, a protein essential for photosynthesis.

pristine gas in the early universe

Scientists saw pristine clouds of hydrogen this year that may be surprisingly long-lasting leftovers from the big bang.

the microbiome

Researchers found that far from being random, our internal microbial communities fall roughly into three enterotypes.

a new malaria vaccine

After decades of disappointments, the results seen in smaller trials of a malaria vaccine called RTS,S have held up.

alien solar systems

Scientists have discovered planetary systems that are forcing them to rethink how planets form and settle into orbits.

zeolites

This year, researchers found new ways to tailor the size of zeolite pores and create thinner, cheaper membranes.

senescent cells
Solid evidence shows that cells that no longer divide promote aging and that culling them could keep us healthier longer.
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