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SAN FRANCISCO, June 6 (Xinhua) -- Apple's chief executive officer Steve Jobs on Monday took a break from his medical leave to introduce the company's new cloud-based service iCloud.Jobs, in his trademark black turtleneck and jeans, got a standing ovation in San Francisco's Moscone Center when he appeared on stage. Someone screamed "I love you," and Jobs said " it always helps and I appreciated it.""ICloud stores your content in the cloud and wirelessly pushes it to all your devices," said Jobs, calling it Apple's "next big insight."According to Apple, iCloud Backup will automatically back up users' iOS devices to iCloud daily over Wi-Fi when they charge their iPhone, iPad or iPod touch. Backup content includes purchased music, apps, camera roll, device settings and app data. It will also automatically upload documents from iWork in the cloud and pushes them to users' all relevant devices.The service will currently be free and replaces the former MobileMe which Apple once charged 99 U.S. dollars per year.Users will get five gigabytes of memory which is not counting purchased apps, music or books. A beta version is available on Monday and the final version will be shipping with iOS 5 this fall, with paid plans for more storage to be announced at that time.For a 24.99-dollar paid music plan named iTunes Match, a user's iTunes library will be scanned and they will gain instant access to those tracks or albums from compatible devices, rather than uploading them. Song files, including those converted from CDs, will also be uploaded to iCloud if they are not matched in iTunes stores but recognized by music labels.Jobs pointed out that iTunes Match paid plan is cheaper than Amazon's offering and Google has not announced a price yet, saying "it's an industry leading effort."The Apple CEO finally showed a photo of the company's new, massive data center in North Carolina to emphasize Apple is ready for iCloud service.Before Jobs, Apple executives introduced Lion, the eighth major release of Mac OS X and iOS 5, the next version of Apple's mobile operating system.Phil Schiller, Apple's marketing chief and Craig Federighi, the OS X software vice president, introduced ten key new features among the 250 ones of the new Mac operating system, including multi-touch features that bring the users experience on iPhone to their computers.Lion will be available to customers in July in Mac App Store. The price is adjusted to 29.99 dollars from 129 dollars Apple used to charge for upgrades.Scott Forstall, head of Apple's iOS software, demoed Apple's new mobile operating system, noting that iOS already has 44 percent of the mobile operating system market.The new version iOS 5 will have more than 200 new features, including a Notification Center that catches missed calls, mail messages and phone messages; and a feature called Reminder that provides virtual Post-it notes using geolocation technology.The new mobile operating system also integrates Twitter with many other iPhone apps and has a Newsstand on which the newspaper and magazines icons will be the actual covers of the publications.Apple said that iOS 5 is coming to the public this fall, which probably means the new iPhone is coming in the fall as well.Apple's new services are unveiled at its annual Worldwide Developers Conference (WWDC). Jobs kicked off the keynote event by saying that Apple had sold out 5,200 tickets to attendees just in two hours.

BEIJING, July 26 (Xinhuanet) -- Seven of the 20 top selling American prescription drugs will lose their patents by the end of next year, making way for less expensive generic versions, according to media reports.It's a shift that could save consumers billions of dollars -- assuming those big-ticket medications are willing to give up a trusted brand name for an off-label replacement.The prices of medications such as cholesterol-fighting Lipitor and blood thinner Plavix are expected to go down significantly, according to the U.S. Food and Drug Administration (FDA).Lipitor will lose its patent in November. When that patent expires, people are advised to buy atorvastatin, the generic equivalent. Other brand names include the anti-psychotic Zyprexa and the rheumatoid arthritis and psoriasis drug Enbrel, of which the patent will expire in October and October of next year, respectively.Over the next 10 years, an estimated 120 more brand-name prescription drugs will lose their patents in the U.S.

LOS ANGELES, July 22 (Xinhua) -- Two teams of astronomers have discovered the largest and farthest reservoir of water ever detected in the universe, NASA's Jet Propulsion Laboratory (JPL) said on Friday.The water, equivalent to 140 trillion times all the water in the world's ocean, surrounds a huge, feeding black hole, called a quasar, more than 12 billion light-years away, according to JPL in Pasadena, California."The environment around this quasar is very unique in that it's producing this huge mass of water," said Matt Bradford, a scientist at JPL. "It's another demonstration that water is pervasive throughout the universe, even at the very earliest times. "This artist's concept illustrates a quasar, or feeding black hole, similar to APM 08279+5255, where astronomers discovered huge amounts of water vapor. Gas and dust likely form a torus around the central black hole, with clouds of charged gas above and below. X-rays emerge from the very central region, while thermal infrared radiation is emitted by dust throughout most of the torus. While this figure shows the quasar's torus approximately edge-on, the torus around APM 08279+5255 is likely positioned face-on from our point of view.A quasar is powered by an enormous black hole that steadily consumes a surrounding disk of gas and dust. As it eats, the quasar spews out huge amounts of energy. Both groups of astronomers studied a particular quasar called APM 08279+5255, which harbors a black hole 20 billion times more massive than the sun and produces as much energy as a thousand trillion suns.Astronomers expected water vapor to be present even in the early, distant universe, but had not detected it this far away before. There's water vapor in the Milky Way, although the total amount is 4,000 times less than in the quasar, because most of the Milky Way's water is frozen in ice. Water vapor is an important trace gas that reveals the nature of the quasar. In this particular quasar, the water vapor is distributed around the black hole in a gaseous region spanning hundreds of light-years in size (a light-year is about six trillion miles).Its presence indicates that the quasar is bathing the gas in X- rays and infrared radiation, and that the gas is unusually warm and dense by astronomical standards, JPL said.Although the gas is at a chilly minus 63 degrees Fahrenheit ( minus 53 degrees Celsius) and is 300 trillion times less dense than Earth's atmosphere, it's still five times hotter and 10 to 100 times denser than what's typical in galaxies like the Milky Way, said JPL.Measurements of the water vapor and of other molecules, such as carbon monoxide, suggest there is enough gas to feed the black hole until it grows to about six times its size, JPL said.Whether this will happen is not clear, the astronomers say, since some of the gas may end up condensing into stars or might be ejected from the quasar.Bradford's team made their observations starting in 2008, using an instrument called "Z-Spec" at the California Institute of Technology's (Caltech's) Submillimeter Observatory, a 33-foot (10- meter) telescope near the summit of Mauna Kea in Hawaii. Follow-up observations were made with the Combined Array for Research in Millimeter-Wave Astronomy (CARMA), an array of radio dishes in the Inyo Mountains of Southern California.The second group, led by Dariusz Lis, senior research associate in physics at Caltech and deputy director of the Caltech Submillimeter Observatory, used the Plateau de Bure Interferometer in the French Alps to find water. In 2010, Lis's team serendipitously detected water in APM 8279+5255, observing one spectral signature.Bradford's team was able to get more information about the water, including its enormous mass, because they detected several spectral signatures of the water, according to JPL.

BEIJING, Aug. 30 (Xinhua) -- China's second moon orbiter, the Chang'e-2, has arrived in outer space about 1.5 million km away from Earth and is now orbiting the second Lagrange Point (L2), where gravity from the sun and Earth balances the orbital motion of a satellite, Chinese scientists said Tuesday.Chang'e-2 entered L2's orbit at 11:27 p.m. last Thursday after spending 77 days traveling away from its previous orbital path around the moon, according to the State Administration of Science, Technology and Industry for National Defence (SASTIND).The SASTIND said that China is now the world's third country or organization to successfully put a spacecraft into orbit around L2, after the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) of the United States.The Chang'e-2 orbiter will carry out exploration activities around L2 in the coming year, SASTIND said.There are five so-called "Lagrange Points" about 1.5 million km way from the Earth in the exact opposite direction from the sun. Putting a spacecraft at any of these points allows it to stay in a fixed position relative to the Earth and sun with a minimal amount of energy needed for course correction.The orbiter completed all of its assigned tasks after blasting off on Oct. 1, 2010, according to the SASTIND. Although the orbiter was only supposed to remain in space for six months, the SASTIND decided to assign additional tasks to it, as it still had fuel in its reserve tanks.Traveling into outer space from the moon's orbit was one of the orbiter's most important missions, according to the SASTIND.Before arriving at its current position in outer space, the Chang'e-2 took photos of the northern and southern poles of the moon. It then descended to a lower orbit, approximately 15 km away from the moon's surface, where it captured high-resolution images of the Sinus Iridum, or "Bay of Rainbows," an area where future moon probes may land.The SASTIND is reportedly planning to launch measure and control stations into outer space by the end of the second half of next year. The Chang'e-2 will be used to test the two stations' functionality at that time.China's ambitious three-stage moon mission will include a moon landing, as well as the launch of a moon rover during the second stage, which is scheduled to take place in 2012. During the third phase, another rover will land on the moon and return to Earth with lunar soil and stone samples for scientific research around 2017.China does not currently have a timetable in place for a manned moon landing. It launched its first lunar probe, the Chang'e-1, in October 2007.In 2003, China became the third country after Russia and the United States to send a human into space. Two more manned space missions followed, the most recent of which took place in 2008.0 The Chang'e probes are named after the Chinese legendary goddess of the moon.

BEIJING, July 11 (Xinhuanet) -- Gay and bisexual men account for around one in every three new cases of HIV in China, according to the latest official statistics released by the Ministry of Health.About 5 percent of the group - officially termed men who have sex with men, or MSM - are living with the virus, which is a rate that is 88 times higher than the national HIV prevalence rate of 0.057 percent.The problem is particularly acute in large urban centers, with the prevalence rate in some southwestern cities reaching almost 20 percent.However, the statistics also show that less than half of all gay and bisexual men have access to HIV screening, while about 15 percent of those who are infected are not receiving treatment."Cities are at the heart of China's development and progress and must remain at the forefront of its HIV response," said Michel Sidibe, executive director of the Joint United Nations Programme on HIV/AIDS (UNAIDS), during a workshop about the HIV impact on MSM on Saturday in Chengdu, capital of Southwest China's Sichuan province."Through bold action cities can lead the way to achieving the UNAIDS vision of zero new HIV infections, zero discrimination and zero AIDS-related deaths," he said, according to a UNAIDS news release. "We hope that over the next year, many more Chinese cities will implement MSM strategies."Almost 10 percent of gay and bisexual men in Chengdu are HIV-positive, according to Yang Xiaoguang, director of the city's health bureau. He agreed with Sidibe that cities have a crucial role to play in AIDS prevention and added: "By working to build a strong, multi-sector response in Chengdu, with meaningful community participation, we can scale-up coverage of prevention, treatment and care services among MSM and halt the spread of HIV."During the workshop, senior Chinese health officials, representatives from civil societies and other delegates discussed a new five-year strategy that increases coverage of HIV prevention and treatment for the MSM population and promotes the participation of community organizations.Government estimates put China's population of gay men at between 5 and 10 million, although Zhang Beichuan, a leading expert on HIV at Qingdao University, puts the number closer to 30 million.Tong Ge, coordinator of China's MSM Health Forum, noted the importance of ensuring strong cooperation between the government and society."By building on the experiences of cities like Chengdu, which already have well developed AIDS responses, we can help promote multi-sector collaboration on an equal, orderly basis and strengthen the response to HIV nationwide," he said. "The next step will be to implement similar strategies in other cities nationwide."Chengdu's new strategy underscores the critical role community organizations can play in reaching MSM and other populations at a higher risk of infection, experts at the workshop said.In 2009, China had an estimated 740,000 people living with HIV/AIDS, according to UNAIDS statistics.