Archive for January, 2010

Nature and cell Reflection 2009 H1N1 influenza

时间: 2010-01-27 - 分类: News - 无评论

2009 Influenza A H1N1 influenza for Mexican scientists did not expect, but also for scientists around the world, then part of the Government into a panic, but fortunately that is not the raging epidemic stream. a flow of the vaccine has also been a large-scale production. Recalling the 2009 flu to what scientists have thinking, 《Nature》 and 《cell》recently published a reflection on the respective articles. 阅读全文 »

Google considering withdraw from China

时间: 2010-01-13 - 分类: Web2.0 - 无评论

Google said that it may consider shutting down its operations in China, that mean Google.cn may be nearing the end of its life. the news from the company’s chief legal officer, David Drummond, said on Google’s official blog. 阅读全文 »

More herbicide use on genetically modified crops

时间: 2010-01-04 - 分类: Agriculture - 无评论

From Organic Center found report, the amount of herbicides used on genetically engineered crops has increased in the past 10 years. Since many genetically engineered crops were modified so that farmers could spray Roundup, or Glyphosate, to kill the weeds in their fields but not the crops themselves, the expectation was that less herbicide would be required. But the new report found that this is not what happened. 阅读全文 »

Using modern sequencing techniques to study ancient modern humans

时间: 2010-01-02 - 分类: Education - 无评论

Cell Press News. DNA that is left in the remains of long-dead plants, animals, or humans allows a direct look into the history of evolution. So far, studies of this kind on ancestral members of our own species have been hampered by scientists’ inability to distinguish the ancient DNA from modern-day human DNA contamination. Now, research by Svante Pääbo from The Max-Planck Institute for Evolutionary Anthropology in Leipzig, published online on December 31st in Current Biology, overcomes this hurdle and shows how it is possible to directly analyze DNA from a member of our own species who lived around 30,000 years ago. 阅读全文 »

Engineered tobacco plants have more potential as a biofuel

时间: 2010-01-02 - 分类: Biology - 无评论

Increasing the oil in tobacco plant leaves may be a step towards using the plants for biofuel, The  paper was published online in Plant Biotechnology Journal. Researchers from the Biotechnology Foundation Laboratories at Thomas Jefferson University have identified a way to increase the oil in tobacco plant leaves, which may be the next step in using the plants for biofuel. 阅读全文 »