A 48-million-year-old fossilised leaf has revealed the oldest known evidence of a macabre（可怕的） part of nature – parasites（寄生虫） taking control of...
NIST will use the new ultra-dark detector, described in a new paper in Nano Letters, to make precision laser power measurements for advanced technolog...
New satellite imagery has given scientists the most comprehensive and exact data on the distribution and decline of mangrove（红树林） forests from across ...
Overweight American children and adolescents have become fatter over the last decade, according to researchers at the Johns Hopkins Bloomberg School o...
Mayo Clinic researchers found that healthy young people who put on as little as 9 pounds of fat, specifically in the abdomen（腹部） , are at risk for dev...
For more than a century, clinical investigators have focused on early life as a source of adult psychopathology（精神病理学） . Although the hypothesized（假定，...
Following up a pioneering 2007 proof-of-concept study, a University of Utah biochemist（生物化学家） and colleagues have developed a promising new anti-HIV d...
A combination of Chinese herbs（药草） in use for more than 1,800 years reduced the gastrointestinal（胃肠的） side effects of chemotherapy（化学疗法） in mice, whil...
Normal matter like that found in stars, planets and dust clouds only makes up a tiny fraction（分数，部分） of the mass–energy content of the Universe....
A University of Illinois metabolic（变化的，新陈代谢的） engineer has taken the first step toward the more efficient and economical production of biofuels by dev...