中山大便带血是什么引起的(中山大便出血是鲜红的什么原因) (今日更新中)

JIUQUAN/BEIJING, Nov. 1 (Xinhua) -- Commander-in-chief of China's manned space program Chang Wanquan announced early Tuesday that the launch of Shenzhou-8 unmanned spacecraft was successful.The spacecraft was sent into the designated orbit after the blastoff at 5:58 a.m. from the Jiuquan Satellite Launch Center in northwest Gobi desert, carried by an upgraded Long March-2F rocket.It is heading for rendezvous with Tiangong-1, or "the Heavenly Palace" that was put into space on Sept. 29 for the country's first space docking.The move, if successful, will pave the way for China to operate a permanent space station around 2020 and make the nation the world's third to do so.The combined photo taken on Nov. 1, 2011 shows the blast-off of a modified model of the Long March CZ-2F rocket carrying the unmanned spacecraft Shenzhou-8 at the Jiuquan Satellite Launch Center in northwest China's Gansu Province. Commander-in-chief of China's manned space program Chang Wanquan announced that the launch of the spacecraft was successful.Chinese Vice Premier Zhang Dejiang viewed the launch at the Jiuquan center. The launch was also observed on site by senior officials from the European Space Agency and the German Aerospace Center.The docking is scheduled to occur within two days after the launch of Shenzhou-8 and at a height of 343 km above the Earth's surface. It will return to the Earth after two docking tryouts.Chinese and German scientists will conduct 17 life science space experiments on the Chinese spacecraft Shenzhou-8, Wu Ping, spokeswoman for China's manned space program, said Monday.To ensure the success of the mission, Chinese space engineers have made "considerable modifications" on Shenzhou-8 to previous versions of the spacecraft.Shenzhou-8, with a length of nine meters and a maximum diameter of 2.8 meters, has a liftoff weight of 8.082 tonnes."More than half of the 600 or so sets of equipment have been modified, while newly designed devices account for about 15 percent of the total," Wu said.The modifications were mainly aimed at arming the spacecraft with automatic and manual rendezvous and docking capacities, and enhancing the vehicle's performance, safety and reliability, Wu said."After the improvements, the spacecraft will be able to connect with the target spacecraft Tiangong-1 for 180 days," Wu said.The unmanned spacecraft is also equipped with devices for recording real images and mechanical parameters during its flight, to test the space docking before a manned attempt.Once China has mastered the technologies of rendezvous and docking, it will be equipped with the basic technologies and capacity required for building a space station, said Zhou Jianping, chief designer of China's manned space program.Tuesday's mission will be followed by launches of spaceships Shenzhou-9 and -10 in 2012, which are also expected to dock with Tiangong-1. "At least one mission of the two will be manned," Wu said.The crew members, including probably two female astronauts, have already been selected for the possible manual space docking mission in 2012 and are being trained for manual docking skills.The space docking tests and experiments will provide crucial experience of China's construction of a 60-tonne permanent manned space station around 2020 when Chinese astronauts are expected to operate more research projects in space."It will make it possible for China to carry out space exploration of a larger scale," Zhou said.

SAN FRANCISCO, Nov. 22 (Xinhua) -- Microsoft announced on Tuesday that it has acquired video search engine VideoSurf.In a press release, Microsoft said it will integrate VideoSurf' s technology across its entertainment platform to augment the Xbox 360 ecosystem and evolve search and discovery of entertainment content on Xbox LIVE.Details of the deal were not disclosed. Technology news site TechCrunch cited Israeli business newspaper Calcalist as saying that the company was bought for about 70 million U.S. dollars.The San Mateo, California-based company, founded by four Israelis in 2006, offers a technology that "sees" frames inside videos to make discovering content fast, easy and accurate.Since its founding, VideoSurf has raised 28 million dollars from several sources, including Facebook chief operating officer Sheryl Sandberg and her husband, as well as former U.S. vice president Al Gore.Last month, Microsoft announced that it will bring cable television content to its Xbox video game console over the holiday season, expanding the console into an entertainment hub.The software giant said Tuesday that the latest acquisition will make it easier for world-class video partners to take full advantage of advanced search features.

BEIJING, Sept. 30 (Xinhuanet) -- The number of children being prescribed stimulants to treat attention deficit hyperactivity disorder (ADHD) has been steadily rising in the U.S. since 1996, researchers found.The finding was contained in a report released Wednesday in the U.S. medical journal Psychiatry.About 7.8 percent of children aged 4 to 17 in 2003 were diagnosed with ADHD, compared to 9.5 percent in 2007, according to the data gathered from the Health Resources and Services Administration's National Survey of Children's Health.And compared to 0.6 percent in 1987, 2.9 percent of children under 19 in 2002 have been prescribed stimulants, the report said.The finding raises the researchers' concern as stimulants have side effects such as decreased appetite, leeplessness and even heart-related damage, the report warned."Stimulant medications work well to control ADHD symptoms, but they are only one method of treatment for the condition. Experts estimate that about 60 percent of children with ADHD are treated with medication." says researcher Benedetto Vitiello, MD, of the U.S. National Institute of Mental Health."There is ongoing concern that these drugs may not be used properly, especially when they are prescribed to college students or children in their late adolescence who are more in charge of their care and may not be using the medications as prescribed." he added.

BEIJING, Oct. 1 (Xinhua) -- China plans to decrease leprosy rates by 50 percent over the next 10 years, according to a joint plan to fight the infectious disease issued by the Ministry of Health and ten other ministerial-level institutions.The prevalence rate is targeted to be brought down to one case per 10,000 people by 2015. The rate will further shrink to one in every 100,000 people by 2020 in at least 98 percent of the country's counties, according to the plan.A total of 500,000 cases of leprosy have been reported and treated for free throughout the country since the founding of the People's Republic of China on Oct. 1, 1949.The number of leprosy cases has plummeted over the past 62 years, but the country still faces challenges in fighting the disease, the plan said.Leprosy, an infectious disease that has affected humanity for over 4,000 years, is primarily characterized by skin lesions and progressive physical debility, and can cause permanent nerve damage.Despite sustained efforts -- and considerable success -- in bringing the disease under control, leprosy is still a serious disease in some parts of China and people who have been cured of the disease continue to face discrimination.More than 1,700 new cases have been reported annually in the past five years. The provinces of Sichuan, Yunnan, Guizhou and Hunan and the Tibet Autonomous Region are most affected by the disease, according to the plan.

SAN FRANCISCO, Oct. 14 (Xinhua) -- Google on Friday announced to shut down the highly-controversial social networking product Google Buzz, along with several other services in the coming weeks.On the company's official blog, Google announced the death penalty to its code search engine, Buzz, Jaiku which let users send updates to friends, the Google personalized homepage feature iGoogle, and the University Research Program for Google Search.The shut-downs came as part of Google's housecleaning effort announced in early September, in which the company said it will shut down a number of products and merging others into existing products as features."Changing the world takes focus on the future, and honesty about the past. We learned a lot from products like Buzz, and are putting that learning to work every day in our vision for products like Google+. Our users expect great things from us; today's announcements let us focus even more on giving them something truly awesome," said Google in the blog post.Google Buzz, a social networking and messaging tool integrated into Gmail service, has been widely criticized for privacy concerns and held back the search giant from expanding its businesses to the social networking space.After Buzz, Google launched Google+ in June, which has been receiving a good response and passed the 40 million user mark, the company's chief executive officer Larry Page said Thursday.

来源：资阳报