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BEIJING, Jan. 26 (Xinhua) -- China's top leaders Wednesday evening attended a gala held at the Great Hall of the People to celebrate the coming Chinese lunar new year, which falls on Feb. 3, with armymen and the common people.Chinese President Hu Jintao and other members of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee Wu Bangguo, Wen Jiabao, Jia Qinglin, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang, watched the artistic performance and extended their festival greetings to the audience.Chinese top leaders Hu Jintao, Wu Bangguo, Wen Jiabao, Jia Qinglin, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang pose with performers for a group photo after an evening party welcoming the upcoming Chinese traditional Spring Festival in Beijing, capital of China, Jan. 26, 2011. Military and civilian artists presented various programs at the gala ranging from Peking Opera, chorus to acrobatic shows, which were welcomed and hailed by the audience.

BEIJING, Feb. 10 (Xinhua) -- The Chinese currency, or the yuan, on Thursday rose to a fresh high of 6.5849 against the U.S. dollar, according to the China Foreign Exchange Trading System.The central parity rate of the yuan, or RMB, was 1 basis point higher than the previous record of 6.585 set on Feb. 9, the previous trading day.The central parity rate has risen against the dollar for a three consecutive trading days.China's central bank announced on June 19 last year that it would further reform the yuan exchange rate formation mechanism to improve its flexibility.On China's foreign exchange spot market, the yuan can rise or fall 0.5 percent from the central parity rate each trading day.The central parity rate of the RMB against the U.S. dollar is based on a weighted average of prices before the opening of the market each business day.

LOS ANGELES, March 2 (Xinhua) -- Those who take a nap are more likely to have lower levels of blood pressure despite stress, said a new study in the latest issue of International Journal of Behavioral Medicine available on Wednesday.In the study, researchers at Sarah Conklin of Allegheny College in Meadville, Pennsylvania examined 85 healthy university students, who were divided into two groups, with one group taking an hour- long nap during the day, and the other group having no time to sleep. Both groups were given a mental stress test.The study found that participants in both groups experienced increase in blood pressure and pulse rates when they took the stress test, but the average blood pressure of those who slept for at least 45 minutes was significantly lower after the stress test than it was for those who did not sleep.The researchers drew the conclusion that a daytime nap of at least 45 minutes may help stressed-out people lower their blood pressure and protect their heart."Our findings suggest that daytime sleep may offer cardiovascular benefit by accelerating cardiovascular recovery following mental stressors," the researchers said in the study."Further research is needed to explore the mechanism by which daytime sleep is linked with cardiovascular health and to evaluate daytime sleep as a recuperative and protective practice, especially for individuals with known cardiovascular disease risk and those with suboptimal sleep quality," they added.Sleep deficiency is common in the United States, posing a long- term health threat. On average, Americans get nearly two hours less sleep a night than they did 50 years ago, according to background information provided by the journal.

LOS ANGELES, May 12 (Xinhua) -- A subsurface ocean of molten or partially molten magma exists beneath the surface of Jupiter's volcanic moon Io, the Jet Propulsion Laboratory (JPL) said on Thursday."The finding heralds the first direct confirmation of this kind of magma layer at Io and explains why the moon is the most volcanic object known in the solar system," JPL said in a press release posted on its website.The finding was based on new data analysis from NASA's Galileo spacecraft, said JPL.The research was conducted by scientists at the University of California, Los Angeles; the University of California, Santa Cruz;, and the University of Michigan, Ann Arbor. The study is published this week in the journal Science, JPL said."Scientists are excited we finally understand where Io's magma is coming from and have an explanation for some of the mysterious signatures we saw in some of the Galileo's magnetic field data," said Krishan Khurana, lead author of the study and former co- investigator on Galileo's magnetometer team at UCLA."It turns out Io was continually giving off a 'sounding signal' in Jupiter's rotating magnetic field that matched what would be expected from molten or partially molten rocks deep beneath the surface."Io produces about 100 times more lava each year than all the volcanoes on Earth, according to data released by JPL in Pasadena, Los Angeles.While Earth's volcanoes occur in localized hotspots like the "Ring of Fire" around the Pacific Ocean, Io's volcanoes are distributed all over its surface, JPL said, adding that a global magma ocean about 30 to 50 km beneath Io's crust helps explain the moon's activity."It has been suggested that both the Earth and its moon may have had similar magma oceans billions of years ago at the time of their formation, but they have long since cooled," said Torrence Johnson, a former Galileo project scientist based at JPL, an affiliation with NASA."Io's volcanism informs us how volcanoes work and provides a window in time to styles of volcanic activity that may have occurred on the Earth and moon during their earliest history," said Johnson, who was not directly involved in the study.NASA's Voyager spacecraft discovered Io's volcanoes in 1979, making that moon the only body in the solar system other than Earth known to have active magma volcanoes. The energy for the volcanic activity comes from the squeezing and stretching of the moon by Jupiter's gravity as Io orbits the largest planet in the solar system.Galileo was launched in 1989 and began orbiting Jupiter in 1995. Unexplained signatures appeared in magnetic field data from Galileo flybys of Io in October 1999 and February 2000. After a successful mission, the spacecraft was intentionally sent into Jupiter's atmosphere in 2003.

WASHINGTON, Feb. 4 (Xinhua) -- Major trading partners of the United States, including China, did not manipulate their currencies to gain an unfair advantage in international trade in 2010, according to a report released by the U.S Treasury Department on Friday."Based on the resumption of exchange rate flexibility last June and the acceleration of the pace of real bilateral appreciation over the past few months," China's behavior did not qualify under the official definition of manipulation, the Treasury said in its long-delayed semiannual report to the Congress on International Economic and Exchange Rate Policies.With respect to exchange rate policies, ten economies were reviewed in this report, accounting for nearly three-fourths of U. S. trade. Many of the economies have fully flexible exchange rates. A few have more tightly managed exchanges rates, with varying degrees of management."No major trading partners of the United States" met the standards identified by the Congress as currency manipulator, concluded the report.Since the June 19, 2010 announcement by China's central bank of greater exchange rate flexibility, its currency, also known as renminbi (RMB) has appreciated 3.7 percent against the dollar, or about 6 percent annualized. The renminbi has appreciated 26 percent in total against the dollar since 2005.The Treasury said that because inflation in China is significantly higher than it is in the U.S., the RMB has been appreciating more rapidly against the dollar on a real, inflation- adjusted basis, at a rate which if sustained would amount to more than 10 percent per year.The U.S. accuses Beijing of keeping its currency undervalued, flooding the country with cheap exports and costing U.S. jobs. But many economists believe that the appreciation of RMB will help little to the U.S. employment."Treasury today again made the right call on China's currency policy in its latest exchange rate report," John Frisbie, President of the U.S.-China Business Council (USCBC) said in a statement after the U.S. Treasury Department'report."While USCBC believes that China should allow its exchange rate to better reflect market forces, designating China as a ' manipulator' would achieve nothing. USCBC continues to support the Obama administration's approach of combined multilateral and bilateral engagement with China as the most effective way to make progress on the exchange rate issue."

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