科学家在南非找到人类使用火的最早证据,将人类使用火的历史提早了数十万年。这一发现将于本周发表于PNAS杂志。 Human ancestors used fire a million years ago Discovery pushes fire use back hundreds of thousands of years to Homo erectus By Emily C ...
Annals of Internal Medicine杂志上周二发表的一项研究表明,当前乳癌筛查存在过诊断(overdiagnosis)的问题。据该研究统计,大约有15至25%病例属于过诊断;即使在没有乳癌筛查情况下,41至49岁乳癌死亡率下降了37%;乳癌死亡率下降,得益于治疗水平的提高,而不是筛查。 Ma ...
A Beautiful Mind 最近一期《科学》杂志报道,波士顿麻省总医院的科研人员,用specialized MRI scanner技术将人脑几何构造之美展现的淋漓尽致。 The human brain is an organized, 3D grid composed of elegant, ribbon-like fibers. By Megan Scudellari | March 29, 2012 T ...
Nature | News Egg-making stem cells found in adult ovaries Discovery could pave the way for new fertility treatments and a longer reproductive life. Kendall Powell 27 February 2012 It’s time to rewrite the textbooks. For 60 years, everyone ...
2011 Albert Lasker Medical Research Awards Nature Medicine Focus issue: October 2011 Volume 17 , No 10, PP.2471 The discovery of artemisinin (qinghaosu) and gifts from Chinese medicine Youyou Tu 1 Joseph Goldstein has written in this journal that creatio ...