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BEIJING, May 23 (Xinhuanet) -- A new study suggests that crossing your arms could reduce the intensity of pain, according to media reports.The study was conducted by researchers from University College London (UCL), who reported their finding in the journel Pain.They said that crossing the arms could confuse the brain and conflicting information between the brain's two maps - one for the person's body and the other for external space - leading to a lower sensation of pain.A laser was used to generate a four millisecond pin prick on the hands of eight volunteers, who experienced this twice with their arms at their sides and arms crossed.Then the participants were asked to rate the intensity of pain in two situations and an EEG (electroencephalography) was used to measure their electrical brain responses.The results showed that both the perception of pain and EEG activity was reduced when the arms were crossed."Perhaps when we get hurt, we should not only 'rub it better' but also cross our arms," said Giandomenico Iannetti of UCL's department of physiology, pharmacology and neuroscience.

BEIJING, Jan. 26 (Xinhua) -- Chinese Premier Wen Jiabao Wednesday invited more foreign talents to continue their careers or start businesses in China, pledging better conditions for them.During a seminar with more than 20 veteran foreign experts at the Great Hall of the People a week before the Chinese New Year, Wen thanked the foreign friends for their contributions to China's achievements in 2010.Wen said 2011 is a new starting point for China's modernization, as the country implements its 12th five-year plan for economic and social development."China's development is much more associated with the world and the supply of talents than before," Wen said, adding that China will adopt a more open policy to attract overseas experts.Last year, foreign experts made more than 300,000 visits to China, according to Ji Yunshi, general director of the State Administration of Foreign Experts Affairs.

You can think of NASA's Discovery program as a sort of outer-space American Idol: every few years the agency invites scientists to propose unmanned planetary missions. The projects have to address some sort of fundamental science question, and (this is the tough part) they have to be relatively cheap to pull off — say, half a billion dollars or so. Then the proposals go through a grueling competition before judges who aren't as nasty as Simon Cowell but who are every bit as tough. The one left standing at the end gets the equivalent of a recording contract: NASA supplies the funding and the launch vehicle, and away the winner goes — to orbit Mercury, as the Messenger spacecraft is doing right now; or to rendezvous with a couple of asteroids, as the Dawn mission will start doing this July; or to smash into a comet on purpose, a feat achieved by Deep Impact in 2005, a mission not to be confused with the movie of the same name. Now it's time for the next contenders. NASA has just announced that the first round of the latest Discovery competition is over, with three entries out of 28 moving on to the finals. They are, in increasing distance from Earth: the Geophysical Monitoring Station (GEMS) lander, which would use seismometers to study the interior of Mars; the Comet Hopper, which would do just that, leaping from place to place across the surface of Comet 46P/Wirtanen to see how different parts of the tumbling body react to heating by the sun; and the Titan Mare Explorer (TiME), which would plop into a sea of liquid hydrocarbons on Saturn's moon Titan — the first oceangoing vessel ever to set sail on another world. If you had to come up with a theme that ties all three missions together, it would be "origins." The Titan explorer, for example, will be studying a place that — in a crude way, at least — resembles the early planet Earth at a time when life arose here. Titan, with a thick atmosphere and a bizarro-world form of weather featuring toxic winds and hydrocarbon rain, is home to a mix of complex chemistry, complete with organic molecules. The oceans provide a medium in which the molecules can move around and interact with each other. It's even conceivable, though clearly a long shot, that some form of microscopic life already exists on this frigid moon. The Mars lander, by contrast, would visit a place where the seas — plain water in this case — vanished long ago. But the mission of GEMS goes far deeper than that. By analyzing Marsquakes on the Red Planet, GEMS will try to get a handle on what the interior of Mars is like. Scientists don't currently know whether the planet's core is liquid, like Earth's, or solid, or some mushy consistency in between. It all depends on how efficiently Mars has cooled since it formed 4.5 billion years ago, and that depends in turn on the planet's internal structure. "That's the mission," says Bruce Banerdt, of NASA's Jet Propulsion Laboratory, the lead scientist for GEMS. "We want to understand how Mars was built." Along with sensitive seismographic equipment, GEMS will drill down about 20 ft. (6 m) with a thermometer-equipped probe, trying to figure out how quickly the temperature rises with depth. "That will let us extrapolate all the way down to the center," Banerdt says, "which will tell us how fast Mars is cooling."

BEIJING, Feb. 14 (Xinhuanet) -- The exchange rate against the US dollar is currently at an appropriate level but could fluctuate in the future, Yi Gang, vice-governor of the central bank and head of the State Administration of Foreign Exchange, said on Sunday."In the future, as markets fluctuate and labor productivity changes, the rate will certainly show some fluctuation," he said at a seminar. Last Thursday, the yuan's central parity rate rose to a record high of 6.5849 against the US dollar, after rising for three consecutive trading days, before declining to 6.5952 on Friday.The yuan has appreciated about 3.6 percent against the dollar since mid-June. A report from the US Treasury said earlier that on an inflation-adjusted basis, the appreciation was even higher, at an annual rate of more than 10 percent.US Federal Reserve Chairman Ben Bernanke said last Wednesday that China's recent measures to control inflation by raising interest rates is "surprising" and urged Beijing to let its currency rise in value.Currently the exchange rate is still underestimated by no more than 10 percent, said Lu Mai, secretary-general of the China Development Research Foundation (CDRF).The resilience of exporters to the rising yuan is stronger than previously estimated, which helps to pave the way for more currency reform to liberalize the yuan, he said.In 2007 and 2008, the Chinese currency rose by 7 percent annually against the US dollar, but China's GDP only declined by 0.28 percentage points, with inflation down by 0.42 points and workers' wages up by 0.07 points, according to CDRF research."The figures showed that progressive currency reform since July 2005 was successful, and the government should accelerate the reform and further free the yuan in the next five years to promote healthy, long-term economic development," Lu said.China should keep the proportion of its trade surplus to GDP within 5 percent, and avoid further increasing its huge foreign exchange reserves to allow the currency to settle at a balanced level, he said.China's foreign reserves rose to a record .85 trillion at the end of last year, an 18.7 percent increase year-on-year, according to statistics from the People's Bank of China, the central bank.Yi said he took note of the CDRF findings, but emphasized that further moves depended on both the domestic and international economic situation and appropriate timing.Lu Feng, an economist at Peking University, said now is the right time to deepen currency reform and let the yuan trade at a higher price as inflation is rising.Analysts have predicted that the yuan will appreciate this year as inflation may see the government opt for a rising yuan to lower the cost of purchasing international commodities.Lian Ping, chief economist at the Bank of Communications, predicted the yuan would rise by 5 to 7 percent in 2011.