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CHENGDU: Thick fog continued to blanket parts of western and central China Sunday, causing traffic accidents, flight delays and highway closures.Plunging visibility from the bad weather delayed more than 150 flights and left 12,000 passengers stranded Sunday in the Shuangliu International Airport in this capital of Sichuan Province, airport officials said.The airport was closed for nearly nine hours Sunday morning before a flight to Tibet took place at 11:10 am."Full operations did not return to normal until more than an hour later when the first flight from Shenzhen in Guangdong Province landed here," airport publicity department official Liu Gang told China Daily."It was the second day visibility in the airport had been at about 10m."On Saturday morning, a heavy fog fell on Chengdu, shrouding its downtown areas and six suburban counties with a visibility of under 50m.The airport itself was closed for eight hours that day, with 121 flights delayed and 11,000 passengers stranded.Sichuan weather bureau deputy chief Zhong Xiaoping said environmental pollution was a major cause of the fog.Zhong advised citizens to take buses more often, save energy, cut car exhaust, and play a part in the recycling of waste materials.More than 10,000 vehicles were stranded from the fog on highways Sunday, about 4,000 more than the day before, the Chengdu Transportation Bureau said. It advised residents to take trains in the next few days.He Ping, a 49-year-old company employee, drove from Deyang in northern Sichuan to Chengdu through the Chengdu-Mianyang Expressway Sunday afternoon."I've driven for nearly 20 years and have never seen such heavy fog before. I could not even see the line separating the fast lane from the slow one," He told China Daily.Meanwhile, heavy fog also persisted in Hebei, Henan and Shaanxi provinces for consecutive days. The poor visibility forced highways to close and delayed flights Sunday.The Xi'an-Baoji Expressway in Shaanxi Province was closed on Saturday as visibility in some sections was less than 2m.Meteorologists also attributed the fog to a combination of high humidity, lower temperatures and low wind speeds in the affected regions.Xinhua contributed to the story

The central bank raised the reserve requirement ratio for banks by 0.5 percentage point yesterday to mop up excess liquidity resulting from a soaring trade surplus and increased money supply. After the increase, which will take effect on April 16, the ratio will be 10.5 percent for big bankers and 11 percent for smaller lenders. It is the third time this year the People's Bank of China has raised the ratio after similar rises in January and February. The bank reserve requirement refers to deposits banks are required to set aside as a reserve, which reduces their lending ability. "The move is directly aimed at mopping up excess liquidity," Zhao Xijun, finance professor at Renmin University of China, told China Daily, adding the ultimate objective is to maintain stable growth of the economy. In recent months, the trade surplus has expanded rapidly and money supply remained at a high. In the first two months, China's trade surplus amounted to .61 billion, a stunning jump of 230 percent over the same period last year. In February, M1, or cash in circulation and deposits, increased 21 percent year on year, a record high for the past 37 months, indicating increased liquidity pressure. Meanwhile, banks have accumulated 11.1 trillion yuan (.44 trillion) of idle funds that can be used for lending. In January and February, domestic banks extended new loans of 982 billion yuan (7 billion), about 260 billion (.6 billion) more than a year ago. As a result, urban fixed-asset investment has picked up to 23.4 percent year on year in the January-February period from about 20 percent in the fourth quarter of last year, reversing the trend of a slight slowdown since last July. On another front, the consumer price index rose to 2.7 percent, close to the warning line of 3 percent, in February. "The central bank has been closely monitoring the growth trends of the economy and is taking preemptive measures to keep it on the right track," said Zhao. Such a strategy is different from past years, when it seemed to have resorted to rather drastic measures to seek instant regulatory effect, said Zhao. The central bank raised interest rates three times in the past year; the most recent of which came into effect on March 18. Tang Min, chief economist with the Asian Development Bank in China, said yesterday that the adjustment in the reserve requirement ratio may be followed by another hike in the interest rate.

WASHINGTON - Post-menopausal Chinese women who eat a Western-style diet heavy in meat and sweets face a higher risk of breast cancer than their counterparts who stick to a typical Chinese diet loaded with vegetables and soy, a study found. The researchers, writing on Tuesday in the journal Cancer Epidemiology, Biomarkers & Prevention, tracked about 3,000 women in Shanghai, about half of whom were diagnosed with breast cancer. Post-menopausal women who ate a Western-style diet -- beef, pork, shrimp, chicken, candy, desserts and dairy products -- were 60 percent more likely to develop breast cancer than those eating a diet based on vegetables and soy, the study found. The study found the increased risk most acute for cancer involving so-called estrogen-receptor positive tumors. The post-menopausal women with the Western-style diet experienced a 90 percent increased risk for this type of breast cancer. One of the researchers, Marilyn Tseng of the Fox Chase Cancer Center in Philadelphia, said the study detected a much smaller increased breast cancer risk among younger women on a Western-style diet which was not statistically significant. Tseng noted that breast cancer rates among Asian women traditionally have been low but have been rising in recent years. Some experts have suspected that the adoption of a more Western diet may be at least partly to blame. "The increase in risk did appear to be due to the increase in red-meat intake," Tseng said in a telephone interview. "But we didn't do specific analyses to see if it could have been due to other parts of a western diet, like the high intake of desserts or high intake of dairy." The findings also suggested such a diet may increase breast cancer likelihood by increasing obesity, the researchers said. "We are the first to find evidence for an increased risk of breast cancer for a Western-style dietary pattern in an Asian population," the researchers wrote. They detected two dietary patterns in the women, who were diagnosed with their cancer from 1996 to 1998 and were subsequently interviewed about what they ate. One was a "vegetable-soy" pattern based on tofu, cauliflower, beans, bean sprouts and green leafy vegetables, with not much meat. The other was a "meat-sweet" pattern among women gravitating away from typical Chinese fare in favor of more Western foods. "Most studies have tended to look at single dietary factors. And what was unique about this study is that we tried to describe patterns of intake -- foods that go together, that seem to occur together in the diet," Tseng said.

Chinese President Hu Jintao accepted Thursday credentials presented respectively by new ambassadors to China from Austria, Ecuador, Uzbekistan, Armenia, Nepal, and Yemen.The six new ambassadors include: Martin Sajdik from Austria, Washington Hago Mendizabal from Ecuador, Alisher Salashizinov from Uzbekistan, Vahagn Movsisyan from Armenia, Tanka Prasad Karki from Nepal, and Abdulmalek Sulaiman Mohammed Al-Muaalemi from Yemen.

SHENZHEN -- Construction began Saturday on an experimental facility which will offer a platform for Chinese and foreign scientists to work together for discovering a new kind of neutrino oscillation in Shenzhen, South China's Guangdong Province.It was the second biggest cooperation program Chinese high energy scientists ever conducted with other foreign counterparts since October 1988 when the positive-negative electron collider was built in Beijing.Through the collider, scientists from China and the United States have cooperated and carried out legions of scientific research.Saturday's construction commencement function was attended by more than 100 people, including government officials and foreign diplomats, such as Dr. Robin Staffin, Associate Director of Science in the US Department of Energy.Neutrino Oscillation is an intriguing behavior of a sub-atomic particle called neutrino.And the new facility is being built in the mountain near Daya Nuclear Power Plant, which has four reactors with a combined thermal output of 11.6 million kw in operation, and Ling'ao nuclear power plant is not far away. Both nuke power plants will serve as sources of anti-neutrinos for the experiments when the facility is finished.Workers will build three underground experimental halls which will be connected by long tunnels in the mountain that shields the experiment from unwanted cosmic radiation.Each hall will feature a 10-m deep water-pool within which eight anti-neutrino detectors will be deployed. The water protects the detectors from nearby radiation that interferes with the measurement, and helps identify surviving cosmic radiation.And the first experimental hall is expected to be ready by the end of 2008. Commissioning of the detectors in this hall will take place in 2009.Civil engineering construction is anticipated to last about two years, with installation of the last detector scheduled for 2010.Upon completion of the new facility, more than 190 scientists from six countries and regions including the Chinese mainland, Hong Kong, Taiwan Province, the United States and Russia will come over to do research work, according to Chen Hesheng, Chief of the Institute of High Energy Physics with the Chinese Academy of Sciences (CAS).The facility will have a budget of 250 million yuan (US.25 million). And China will be responsible for infrastructure construction and making of four detectors. And the United States will be responsible for making of the rest of the detectors.Wang Yifang, chief scientist on the experiment, said he was confident that the program would make an important contribution to finding a new breakthrough in China's research efforts in particle physics, starting a new horizon in world's neutrino research, and to improving the overall strength of China in science and technology.