Perera says. 'The placenta is not the perfect barrier we once thought.
胎盘并不像我们曾经认为的那样是一个完美的屏障。
The good news, Perera said, is that levels of PAHs are declining in New York City.
佩雷拉说好消息是纽约市的多环芳烃含量正在减少。
But when she analyzed her samples Perera discovered PAH attached to some of the DNA in blood taken from umbilical cords too.
但是分析了样本之后，佩雷拉发现多环芳烃也附着于脐带血中的一些DNA。
Last June the first performance report focused on load testing. In this new report, Asankha Perera, Architect at WSO2, focuses on the typical usage scenarios of an esb.
六月份发布的第一组性能报告集中在负载测试方面。
"We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York," Perera said.
“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现，”佩雷拉说。
“We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York,” Perera said.
“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现,”佩雷拉说。
The image above shows the mandibular teeth of the wasp Dolichovespula saxonica, described in 2006 by American Museum of Natural History curator James Carpenter and colleague Estelle Perera.
上面的这张图片展示了石长黄胡蜂(Dolichovespula saxonica)的下颚齿，这种胡蜂是美国自然历史博物馆的馆员詹姆斯·卡朋特及其同事埃斯特尔·佩雷拉(Estelle Perera)在2006年发现的。
Furthermore, the foul air can literally stunt the growth of the next generation, according to recent research from Frederica P. Perera of Columbia University and her Chinese colleagues.
而哥伦比亚大学的弗雷德里卡·佩雷拉和她的中国同事的最新研究表明，污染的空气将会真正地阻碍下一代的生长发育。
Furthermore, the foul air can literally stunt the growth of the next generation, according to recent research from Frederica P. Perera of Columbia University and her Chinese colleagues.
而哥伦比亚大学的弗雷德里卡·佩雷拉和她的中国同事的最新研究表明，污染的空气将会真正地阻碍下一代的生长发育。
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