梅州自体脂肪全脸移植(梅州妇科附件炎症的症状) (今日更新中)

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Academy of Sciences in the U.S. on Monday.Scientists used a technique called "x-ray crystallography" to reveal the molecular structure of proteins, which work as atom-sized "wires" discharging excess electricity."This is an exciting advance in our understanding of how some bacterial species move electrons from the inside to the outside of a cell," said lead author Tom Clarke of the University of East Anglia's School of Biological Sciences in Norwich, England.He said this discovery means "We can now start developing efficient 'bio-batteries' as the viable energy source in the future."Still, it could take perhaps a decade to go. Before that, existing uses of such bacteria needed to become 100 or 1,000 times more efficient, he said.The advance could also hasten the development of microbe technology that can help clean up oil or uranium pollution, he said.Microbes might in future be enlisted to clean up nuclear accidents such as Japan's Fukushima Daiichi disaster, he added.

LOS ANGELES, April 6 (Xinhua) -- Freeze-dried strawberries may play a role in the prevention of esophageal cancer, a new study suggests."Strawberries may be an alternative or work together with other chemopreventive drugs for the prevention of esophageal cancer," said lead researcher Tong Chen, M.D., Ph.D., assistant professor, division of medical oncology, department of internal medicine at the Ohio State University.Study findings were presented at the ongoing 102nd annual meeting of the American Association for Cancer Research (AACR) in Orlando, Florida, according to the American Association for the Advancement of Science (AAAS) on Wednesday."We concluded from this study that six months of eating strawberries is safe and easy to consume. In addition, our preliminary data suggests that strawberries can decrease histological grade of precancerous lesions and reduce cancer- related molecular events," said Chen, who is also a member of the Molecular Carcinogenesis and Chemoprevention Program in the Ohio State University Comprehensive Cancer Center.The study involved a group of participants who consumed 60 grams of freeze-dried strawberries daily for six months and completed a dietary diary chronicling their strawberry consumption.The researchers obtained biopsy specimens before and after strawberry consumption. The results showed that 29 out of 36 participants experienced a decrease in histological grade of the precancerous lesions during the study.Using freeze-dried strawberries was important because by removing the water from the berries, they concentrated the preventive substances by nearly 10-fold, Chen said.Esophageal cancer is the third most common gastrointestinal cancer and the sixth most frequent cause of cancer death in the world, she noted.Chen and her team are studying esophageal squamous cell carcinoma (SCC) which makes up 95 percent of cases of esophageal cancer worldwide. China, where this study took place, has the highest incidence of esophageal SCC, according to the AAAS.In a previous study, Chen and colleagues found that freeze- dried strawberries significantly inhibited tumor development in the esophagus of rats. Based on these results, they embarked on a Phase Ib trial that included participants with esophageal precancerous lesions who were at high risk for esophageal cancer."Our study is important because it shows that strawberries may slow the progression of precancerous lesion in the esophagus," Chen said.But she said they need to test this in randomized placebo- controlled trials in the future.

PANAMA CITY, April 17 (Xinhua) -- In Latin America there are 600,000 people infected with the Acquired Immune Deficiency Syndrome (AIDS) and about 50 percent of them receive treatment, regional director of UNAIDS for Latin America Cesar Nunez said on Sunday."We have to work a lot for the other half get treatment," Nunez told Xinhua during the 124th Assembly of the Inter-parliamentarian Assembly hosted in Panama City from April 15 to 20.Nunez urged the governments of the region to redouble efforts to control this pandemic, by improving the prevention campaigns to stop new infections."The availability of the medicines has grown in the last 10 years and the countries have taken this commitment, however, the number of infections each time is bigger than the number of people we can treat," he said.According to Nunez, despite the increase of new infections among women, the men sector continue being one of the most affected social groups by this virus."In Latin America we have an epidemic where the most affected are men, followed by homosexuals, lesbians and sex workers," he said.Nunez said that during the meeting with the parliamentarians, they exchanged experiences to contribute to improve the management of this disease."We have met with parliamentarians who have voted for more budget to buy more medicines, in favor of laws for more education about this topic and participation in the exchange of information to know about the advances and backwards of the fight against Aids," he said.Some 800 parliamentarians from 125 countries attended the 124th Assembly to debate the recent events in the Arab world, the disaster in Japan and sustainable development.

SAN FRANCISCO, March 21 (Xinhua) -- Microsoft on Monday sued Barnes & Noble, claiming patent infringement by the largest book retailer in the United States.Microsoft said it filed legal actions on Monday in both the U.S. International Trade Commission and the U.S. District Court of the Western District of Washington against Barnes & Noble, as well as Foxconn and Inventec, two manufacturers of Barnes & Noble's devices.According to Microsoft, the actions focus on the patent infringement by Barnes & Noble's Nook e-reader and tablet, both of which run Google's Android operating system.The patents at issue cover a range of functionality embodied in Android devices that are essential to the user experience, including natural ways of interacting with devices by tabbing through various screens to find the information they need, surfing the Web more quickly and interacting with documents and e-books, Microsoft said in a press release."The Android platform infringes a number of Microsoft's patents, and companies manufacturing and shipping Android devices must respect our intellectual property rights," Horacio Gutierrez, Microsoft's corporate vice president and deputy general counsel, was quoted by the press release as saying.Writing in a separate company blog post, Gutierrez said that the latest actions bring to 25 the total number of Microsoft patents in litigation for infringement by Android smartphones, tablets and other devices.He noted that Microsoft has established a licensing program to address Android's ongoing infringement, and leading Android smartphone manufacturer HTC has taken a license under this program.Amazon.com also signed a patent license with Microsoft last year covering its Kindle e-reader, he added."Unfortunately, after more than a year of discussions, Barnes & Noble, Foxconn and Inventec have so far been unwilling to sign a license, and therefore, we have no other choice but to bring legal action to defend our innovations," Gutierrez said in the blog post.

来源：资阳报