四川修复体模型(青海（网络版）智能化心肺检查和腹部检查教学系统) (今日更新中)

BEIJING, March 8 (Xinhuanet) -- U.S. Food and Drug Administration (FDA) announced there was no new reason for safety concern in Pfizer Inc's Prevenar and Sanofi Aventis SA's ActHIBor vaccines, according to media reports Tuesday.Health agencies "have not detected new safety concerns or unusual reporting patterns" in the vaccines, which are used to prevent forms of meningitis and pneumonia, FDA spokeswoman Shelly Burgess said in an emailed statement.Health agencies in the United States will continue to monitor the vaccines for safety, the spokeswoman added.The Japanese health ministry had decided to suspend the vaccines after four unexplained deaths were reported. The causes of the deaths are still investigated, the Japanese ministry said in a release on its website.

BEIJING, Feb. 5 (Xinhua) - Beijing has seen the arrival of 660,000 tourists during the first three days of the Spring Festival holiday, from Feb. 2 to 4, said Beijing Municipal Bureau of Tourism officials late Friday.The tourism data was collected at the city' s 22 scenic spots.On February 4, official statistics showed that 40,000 tourists swarmed into the Palace Museum, repeating the number from last year' s national holiday, while about 14,500 ski-lovers enjoyed their time at 14 ski resorts in Beijing on the same day.Not only scenic spots, tourists also gravitated to some cultural venues in Beijing.The Beijing-based National Art Museum of China holds an exhibition on "donated masterpieces over the past 50 years (since its completion in 1952)" from Jan. 27 to Feb. 26 and spectators can visit, free of charge, during the Spring Festival holiday (between Feb. 3 and 9).On February 5, visitors queued up in a 200-meter long line waiting for check-in to the museum around 10 a.m.Wang Xiumei, 86, decided to visit the museum with her daughter ten days before."My husband and I were crazy about traditional Chinese paintings decades ago, I have to see some masterpieces today, rather than hearing about them later." Wang said.Hundreds of the nation' s art works are displayed in a dozen halls in the five-storey exhibition area, including oil paintings, ink paintings, wood block prints, shadow puppets, paper cuttings, clay sculptures and embroideries."I changed my mind and got off the bus on my way to a temple fair. My children and I want to see some elegant art works, as opposed to eating and playing during Spring Festival as before," said another citizen named Lu Hongmao.Big cities like Beijing, Shanghai and Guangzhou opened their sports venues to the public during the Spring Festival holiday.

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.

GUIYANG, Jan. 30 (Xinhua) -- Chen and her mentally handicapped son moved into their newly finished home last December. Shortly afterwards, a month-long cold wave with heavy snow hit their hometown, as well as the majority of southern China.It would have been "terrible" to stay in the old home in such cold weather, said 66-year-old Chen Houlian, a villager from the Tongzi County of southwestern China's Guizhou Province.Dropping temperatures and occasional sleet were predicted before this year's lunar New Year festival, which begins next Thursday.Behind the new home stood their old adobe cottage, with visible cracks on the clay walls. Wooden doors and window frames of that cottage were covered with black smoke due to more than 40 years of indoor cooking, while those of the new house were painted bright blue.In fact, the old house might collapse after the heavy snow, according to Jin Jing, deputy head of the County.Chen's family was one of the poorest in town. The farmland they grew crops on barely produced enough corn and cabbage to meet their needs, while the minimum living subsistence allowance of 2,200 yuan (334 U.S. dollars) each year was their total annual income.They would never be able to afford to build a new home on their own without receiving financial aid from a government project, Jin added.Chen's new house cost over 40,000 yuan. They received 20,000 yuan from the project and 5,000 from the local federation of people with disability. The rest was borrowed from relatives and neighbors.Five pairs of red couplets were posted by each door and window to express their gratitude to all the people who had offered help.On the day they moved in, Chen held an outdoor banquet for the entire village using borrowed money to mark the happiest event this family had witnessed for many decades.The government-funded project was launched over two years ago, after a deadly snow storm hit southern China during Jan-Feb 2008, collapsing nearly half a million rural houses and causing damage to another 1.7 million.The project was designed to provide funds to residents living in dilapidated buildings in impoverished rural regions so they might renovate or build new homes.In Guizhou alone, over 600,000 families had finished building new homes by the end of 2010 with help from that project, as over 4.7 billion yuan was allocated to subsidize this building.The project was part of China's efforts to build its social-security-based housing system, which also includes affordable housing, low-rent housing and public rental housing programs to meet the needs of low-income people amid surging property prices across the country.

CAPE CANAVERAL, Florida, April 29, (Xinhua) -- NASA on Friday delayed space shuttle Endeavor's launch to no earlier than Monday afternoon due to technical problems with heaters in the shuttle's auxiliary power unit."Shuttle Endeavor's launch now no earlier than Monday at 2:33 p. m. EDT (1833 GMT)," NASA said. "Engineers need that time to troubleshoot an issue that resulted in today's launch scrub."During Friday's countdown, engineers detected a failure in one of two heater circuits associated with Auxiliary Power Unit (APU) 1. Heaters are required to keep the APUs' hydrazine from freezing on orbit.Space shuttle Endeavour sits on the launch pad at the Kennedy Space Center at Cape Canaveral, Florida,  April 28, 2011. The Endeavor is scheduled for a Friday afternoon launch.U.S. President Barack Obama, touring storm damage in Alabama on Friday, had been expected to attend the planned 3:47 p.m. (1947 GMT) launch. Obama will still visit Cape Canaveral and then travel to Miami, where he is scheduled to speak at a community college commencement.Endeavor's 14-day mission will deliver the Alpha Magnetic Spectrometer-2 (AMS) to the International Space Station. AMS, a particle physics detector, is designed to search for various types of unusual matter by measuring cosmic rays.Its experiments are designed to help researchers study the formation of the universe and search for evidence of dark matter, strange matter and antimatter. Endeavor also will fly the a platform that carries spare parts that will sustain space station operations once the shuttles are retired from service.The mission will feature four spacewalks to do maintenance work and install new components. These are the last scheduled spacewalks by shuttle crew members.Endeavor, which has been promised to the California Science Center in Los Angeles upon its return, was the replacement ship for Challenger, which was lost in a 1986 explosion as it ascended over the Atlantic that killed seven astronauts.It will be the second of NASA's three surviving shuttles to be retired. Sister ship Discovery, which will be transferred to the Smithsonian National Air and Space Museum, completed its last flight in March.Atlantis' final launch is scheduled for June 28. When the U.S. space shuttle program officially ends later this year, the Russian space program's Soyuz capsule will be the only method for transporting astronauts to and from the station.

来源：资阳报