提起美国著名的地点，硅谷必须榜上有名。苹果公司、谷歌、英特尔、惠普等等知名公司都诞生于此。这里不仅仅是许多公司和人才的诞生地，同时也是许多知名大学的所在地，例如全球知名的斯坦福大学（Stanford ...

LOS ANGELES, July 11 (Xinhua) -- A substantial majority of California voters believe that U.S. democracy is in serious trouble, according to a new poll recently published by the Institute of ...

LOS ANGELES, July 2 (Xinhua) -- Exposure to fine particulate air pollution is strongly associated with increased genetic mutations in lung cancer tumors among individuals who have never smoked, a new ...

Department of Pharmaceutical Chemistry and Institute for Neurodegenerative Diseases, University of California San Francisco, San Francisco, California 94158, United States; KEY WORDS: Cu catalysis, ...