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WASHINGTON, July 8 (Xinhua) -- U.S. space shuttle Atlantis lifted off on Friday morning from Kennedy Space Center in Florida, on the 135th and final flight in NASA's shuttle program.The shuttle blasted off at about 11:29 a.m. EDT (1529 GMT) on a tower of flame, NASA TV showed.Before taking flight, shuttle Commander Christopher Ferguson saluted all those who contributed over the years to the shuttle program."The shuttle is always going to be a reflection of what a great nation can do when it dares to be bold and commits to follow through,'' he said. "We're not ending the journey today ... we're completing a chapter of a journey that will never end.''In this photo released by NASA, space shuttle Atlantis lifts off from NASA's Kennedy Space Center in Florida, the United States, July 8, 2011. U.S. space shuttle Atlantis lifted off at about 11:29 a.m. EDT (1529 GMT) on Friday from Kennedy Space Center in Florida, on the 135th and final flight in NASA's shuttle program.Atlantis's primary payload is an Italian-built cargo hauler named Raffaello which is loaded with 8,640 pounds (3,919 kgs) of food, clothing, supplies and science equipment to sustain space station operations after the shuttles are retired.Only four astronauts take to the skies because there is no shuttle available for a rescue flight should anything go wrong. Normally NASA sends six or seven astronauts on space shuttle flights -- with the last four-person shuttle crew launched 28 years ago.But Atlantis' status as the final flight means there is no other space shuttle on standby and the U.S. would have to call on Russia for any rescue operation. The Russian Soyuz capsules hold just three astronauts and at least one must be Russian, so two crew members would have to fly up and bring home the Americans from the International Space Station one at a time.The crew will also return an ammonia pump that recently failed on the station. Engineers want to understand why the pump failed and improve designs for future spacecraft. One spacewalk is planned during Atlantis' mission, though it will be conducted by NASA's two resident space station astronauts, rather than the shuttle crew.It is the 33rd voyage for Atlantis. Its return to the earth later this month will mark the end of the 30-year shuttle program.Atlantis will be the last shuttle to be retired. Discovery was first in March, followed by Endeavour at the beginning of June. Each shuttle will head to a museum.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.Space shuttles have made great contributions to U.S. space exploration. They allowed astronauts to not only launch satellites, but to grab and repair them and put them back into service. Most remarkably, they allowed NASA to regularly rejuvenate the Hubble Space Telescope, which for 21 years has produced images that are transforming astronomers' understanding of the universe. With their enormous cargo bays, the shuttles also enabled the United States and its partners to build the International Space Station.However, high costs, risks, policy shift force the U.S. to quit the space shuttle program.NASA originally estimated the program would cost about 90 billion U.S. dollars. However, its actual cost stands at about 200 billion dollars, compared with the 151 billion dollars spent on Apollo which took Americans to the moon in 1969.Seven astronauts perished when Challenger exploded about a minute after launch in 1986. Nearly two decades after the Challenger explosion, a new catastrophe shocked NASA when the shuttle Columbia disintegrated moments before landing in 2003.One out of every 67 flights ended in death. Based on deaths per million miles traveled, the space shuttle is 138 times riskier than a passenger jet.The panel that investigated the 2003 Columbia accident concluded: "It is in the nation's interest to replace the Shuttle as soon as possible.''The Obama administration wants to spur private companies to get into the space taxi business, freeing NASA to focus on deep space exploration and new technology development.During his first-ever Twitter town hall meeting on Wednesday, Obama said NASA needs new technology breakthroughs to revitalize its mission to explore the universe."The shuttle did some extraordinary work in low-orbit experiments, the International Space Station, moving cargo. It was an extraordinary accomplishment. And we're very proud of the work that it did," Obama said. "But now what we need is that next technological breakthrough."

SAN FRANCISCO, Aug. 10 (Xinhua) -- Amazon on Wednesday launched Kindle Cloud Reader, a web-based app that may help the on-line retailer to sidestep Apple's App Store restrictions.In its announcement, Amazon said Kindle Could Reader uses the HTML5 web standard to let users read e-books from their Kindle library from the Safari browser or Google's Chrome browser on their desktops or tablet, including the iPad.Support for Internet Explorer, Firefox and the Blackberry Playbook will be launched later this year.The app has a button linked to the Kindle Store, which was removed recently from the Kindle apps for iPad and iPhone.The move is taken as an answer to Apple's latest App Store restrictions, which banned developers to have any external links for purchasing digital books or subscriptions in the app, unless they give Apple a 30 percent cut from the in-app sales.Besides Amazon, Barnes & Noble, Google Books and Canadian e- book seller Kobo have also altered their iPad and iPhone apps to comply with the rules.Meanwhile, publishers and retailers have been developing web- based HTML5 apps to sidestep Apple for more control, which is an approved-of technology for iOS devices.The Financial Times, Kobo and video-on-demand service Vudu have recently launched their HTML5 app to avoid paying Apple a 30 percent cut.Industry watchers said it is unknown how Apple will deal with such apps. It would be easy for Apple to disable Web apps in the iPad's Safari browser, but the company would certainly face some backlash, said tech media website CNET.

BEIJING, June 12 (Xinhua) -- A senior Chinese official has called the country's police to better serve the people when the Communist Party of China (CPC) is meeting the 90th founding anniversary.Zhou Yongkang, member of the Standing Committee of the Political Bureau of the CPC Central Committee, made the remark on Sunday evening in meeting with top 10 favorite police officers selected through a nationwide vote.The Ministry of Public Security (MOPS) and the China Central Television have jointly conducted My Favorite Police Officer Competition in the past eight years.This year's winners include 75-year-old detective Wu Guoqing, network security police officer Li Qing from Jiangsu Province, traffic police officer Wu Hao of Miao Nationality from Hunan Province, female SWAT team leader Pan Qin from Guizhou Province.Zhou said that this year's competition attracted more than 150 million online voters which means more and more people are supporting the activity, and all winners should cherish the honor and better serve the people on their own posts.The official called on police officers around the country to learn from the 10 favarite officers and other winners in the competition who have all made outstanding contribution to the security of the people and society.

WASHINGTON, Aug. 2 (Xinhua) -- A new study has identified the recent emergence of a multidrug-resistant strain of Salmonella that has a high level resistance to ciprofloxacin, a common treatment for severe Salmonella infections. The study was published on-line Tuesday in The Journal of Infectious Diseases.Francois-Xavier Weill at the Pasteur Institute in France and colleagues studied information from national surveillance systems in France, England and Wales, Denmark, and the United States. The data showed that a multidrug-resistant strain of Salmonella, known as S. Kentucky, infected 489 patients in France, England and Wales, and Denmark between 2000 and 2008. In addition, researchers reported that the first infections were acquired mainly in Egypt between 2002 and 2005, while since 2006 the infections have also been acquired in various parts of Africa and the Middle East. The absence of reported international travel in approximately 10 percent of the patients suggests that infections may have also occurred in Europe through consumption of contaminated imported foods or through secondary contaminations.In this study, multidrug-resistant S. Kentucky was isolated from chickens and turkeys from Ethiopia, Morocco, and Nigeria, suggesting that poultry is an important agent for infection. The common use of fluoroquinolones in chicken and turkey production in Nigeria and Morocco may have contributed to this rapid spread, according to the researchers.This study highlights the importance of public health surveillance in a global food system. The investigators reported that they will continue to monitor this multidrug-resistant strain as well as help strengthen the capacities of national and regional laboratories in the surveillance of Salmonella and other major foodborne pathogens through the World Health Organization Global Foodborne Infections Network.Salmonella infection represents a major public health problem worldwide. An estimated 1.7 million such infections occur in North America each year. More than 1.6 million cases were reported between 1999 and 2008 in 27 European countries. Although most Salmonella infections produce only mild gastroenteritis, elderly and immunocompromised patients are especially at risk for life- threatening infections. These cases are typically treated with antimicrobials called fluoroquinolones, such as ciprofloxacin.