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BEIJING, Feb. 12 (Xinhua) -- Sales revenue of Beijing's auto market in 2011 might shrink by 60 billion yuan (about 9.1 billion U.S. dollars) due to the city limiting the number of cars purchased each month, a commerce official said Saturday.Car sales revenue will drop to 100 billion yuan in 2011 from last year's 160 billion yuan, Wang Shuxia, chief for marketing section with the Beijing Municipal Commission of Commerce, told a working meeting of the commission.A control on car purchases introduced this year limits new car license plates to 240,000 in 2011, said Wang.In 2010, more than 800,000 new cars drove onto Beijing's roads, worsening the chronic gridlock in this Chinese national capital of nearly 5 million automobiles.Wang estimated that Beijing's car sales this year will hit 580,000 units, as some cars will be sold to buyers outside of Beijing while others will be purchased by buyers who are replacing older cars.Car owners who replace their old vehicles can obtain car license plates directly without taking part in the lottery that allots 20,000 new plates each month.

WASHINGTON, March 25 (Xinhua) -- Researchers at the University of Colorado (CU) and the Harvard University have found that people living at higher altitudes have a lower chance of dying from ischemic heart disease and tend to live longer than others, according to a study published this week in the Journal of Epidemiology and Community Health.They spent four years analyzing death certificates from every county in the United States. They examined cause-of-death, socio- economic factors and other issues in their research.They found that of the top 20 counties with the highest life expectancy, eleven for men and five for women were located in Colorado and Utah. And each county was at a mean elevation of 5, 967 feet above sea level. The men lived between 75.8 and 78.2 years, while women ranged from 80.5 to 82.5 years.Compared to those living near sea-level, the men lived 1.2 to 3. 6 years longer and women 0.5 to 2.5 years more."If living in a lower oxygen environment such as in our Colorado mountains helps reduce the risk of dying from heart disease it could help us develop new clinical treatments for those conditions," said Benjamin Honigman, professor of Emergency Medicine at the CU School of Medicine. "Lower oxygen levels turn on certain genes and we think those genes may change the way heart muscles function. They may also produce new blood vessels that create new highways for blood flow into the heart."Another explanation, he said, could be that increased solar radiation at altitude helps the body better synthesize vitamin D which has also been shown to have beneficial effects on the heart and some kinds of cancer.Despite these numbers, the study showed that when socio- economic factors, solar radiation, smoking and pulmonary disease were taken into account, the net effect of altitude on overall life expectancy was negligible.Still, Honigman said, altitude seems to offer protection against heart disease deaths and may also play a role in cancer development.Colorado, the highest state in the nation, is also the leanest state, the fittest state, has the fewest deaths from heart disease and a lower incidence of colon and lung cancer compared to others.

BEIJING, May 10 (Xinhuanet) -- Professional social networking site LinkedIn is aiming for a valuation of 3.3 billion U.S. dollars for its initial public offering, media reports said Tuesday.The Mountain View, California-based company is expected to begin trading on the New York Stock Exchange within the next month and will use the symbol "LNKD."It plans to offer 7.84 million shares priced at 32 dollars to 35 dollars each, according to the filing, which it submitted to the Securities and Exchange Commission.LinkedIn, which has more than 100 million members in over 200 countries and territories, is seeking to raise as much as 274.4 million dollars from the initial public offering (IPO) with 146.6 million dollars going to the company itself.In 2010, LinkedIn made 15 million dollars in profit on 243 million dollars in revenue, according to the filing.LinkedIn's biggest shareholder is its founder and chairman, Reid Hoffman, who owns more than 21 percent of the company.

MOSCOW, March 11 (Xinhua) -- A new crew which are to depart for the International Space Station (ISS) at the end of March have successfully passed the pre-flight tests, the Russian Federal Space Agency (Roscosmos) announced on Friday.At a press conference held at Russia's Cosmonauts Training Center, a Roscosmos spokesman said two Russian cosmonauts Andrei Borisenko and Alexander Samokutyaev and a U.S. astronaut Ronald Garn will leave for the ISS by a Russian Soyuz-TM-21 spacecraft on March 30.On March 17, the three crew members and their backup crew members, Anton Shkaplerov, Anatoly Ivanishin and Daniel Burbank, will make their final preparation for the space trip in the Baikonur space site in Kazakhstan.According to the Roscosmos, the three main crew members are expected to spend 170 days in the ISS. During the period, they will receive two U.S. space shuttles and three Russian Progress cargo ships and conduct a spacewalk.The agency also revealed the Soyuz-TM-21 spacecraft scheduled for the ISS was named as Gagarin.The year of 2011 was announced as Russia's Space Year to celebrate the 50th anniversary of the launch of the first Russian manned space flight carrying cosmonaut Yuri Gagarin in 1961 for a 90-minute flight.