"We found definitive proof that IPA-3 fit into and binds to PAK1's autoregulatory domain, the part of the enzyme where it can, essentially, shut itself off when necessary," Peterson says.

“我们发现确切证据证明IPA - 3绑定在PAK1的自我调节域，部分的酶会在需要时关闭自己”彼得森说。

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While a handful of U-S schools have incorporated the teaching method, Peterson felt it was a bit too drastic a change for their public preschool.

VOA: standard.2010.06.25

Nicholas Lardy, an economist and senior fellow at the Washington-based Peterson Institute, says China's unwillingness to adopt derivative loans and other high-risk financial products helped to shield it from the impact of the world economic downturn.

VOA: standard.2009.11.10

NPR's Molly Peterson reports.

NPR: A New School Year Begins in New Orleans

In October 2003, three months after giving birth to what was Peterson's fifth child, the then-19-year-old Stacy Kales and 49-year-old Drew Peterson married.

CNN: Drew Peterson saga moves to the courtroom Tuesday

Pam Bosco, a spokeswoman for Stacy Peterson's family, lauded the prosecution for making "this world a safer, better place" by fighting to convict Peterson and expressed hope he'd next be held accountable for what happened to his fourth wife.

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