The Seattle Seahawks signed defensive lineman Brandon Pili to their practice squad two days after waiving him, the team announced. Pili was claimed off waivers by the Seahawks on Nov. 11 ...

关于《环球科学》和“科研圈”《环球科学》是世界领先科技媒体《科学美国人》独家授权中文版，服务于中国公众与科技群体，提供前沿科技报道与领先的科技资讯。《科学美国人》（Scientific American）创刊于1845年，是全球连续出版历史最长的科技期刊，为全球超过 500 万读者提供有关科技的前瞻报道和深度解读，在 14 ...

A team of University of Manchester undergraduate students have returned from an international competition in Paris with a ...

Bacterial genetics is the study of the mechanisms of heritable information in bacteria, their chromosomes, plasmids, transposons and phages. Techniques that have enabled this discipline are ...

Herbs have not been proved to completely clear all the parasites in the flock but have the ability to control them ...

Bacterial superantigens (sAg) have been shown to induce T cell hyperactivation through cross linking between MHC class II on antigen presenting cells and certain TCRs on T lymphocytes. Here the ...