On 5 August, she will tell the annual convention of the American Psychological Association in Washington DC what the study has taught her about how to reduce risk for the disease.

8月5日，她在华盛顿召开的美国心理学协会年度大会上将告诉大家，她的研究使她知道了怎样来减少患阿尔茨海默氏症的风险。

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On January 14th a Washington, DC, think-tank, the Migration Policy Institute (MPI), published a study of the impact of recession on migration in America.

一月十四日，华盛顿哥伦比亚特区的一个智囊机构移民政策协会（MPI）发表了一项经济衰退对美国移民影响的研究。

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Objective:To study the demonstration of the anterior wall of stomach(AWS)by means of double constrast (DC) radiograph, and improve the detectability of the lesion in AWS.

目的：研究胃前壁双重相的显示，以及如何更好地显示前壁病变。

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"It takes thousands of years for supernova remnants to evolve, but with this nova we've watched the same kinds of changes over just a few days, " said Kent Wood, a co-author on the Science study from the Naval Research Laboratory in Washington, DC.

BBC: Gamma rays from nova explosion surprise astronomers