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BEIJING, Oct. 26 (Xinhuanet) -- The question, why the first documented supernova was super-sized and grew so fast, has puzzled astronomers for centuries. Now it is solved by US researchers.The supernova, an exploded star, was observed in 185 A.D. and documented as a mysterious "guest star" by Chinese astronomers. It was visible for eight months.Scientists later found the supernova, 8,000 light years away, was a bigger-than-expected supernova remnant. BBC reported that if the infrared light it emits could be seen by human eyes, it would appear to be as large as the full Moon in the sky.Through observations in space telescopes, researchers of a latest study revealed that the explosion took place in a cavity in space, which allowed the star's remains to travel out much faster and farther. The study was published online in the Astrophysical Journal Monday.The supernova was "two to three times bigger than we would expect for a supernova that was witnessed exploding nearly 2,000 years ago. Now, we've been able to finally pinpoint the cause," stated Brian Williams, lead author of the study and an astronomer at North Carolina State University in Raleigh.

KUNMING, Nov. 30 (Xinhua) -- More than 10,000 new HIV infections were reported in southwest China's Yunnan province during the first 10 months of this year, bringing the total number of HIV carriers and AIDS patients in the province to more than 90,000, local AIDS prevention authorities said Wednesday.As of Oct. 31, a total of 93,567 HIV infections had been reported in the province, with the disease claiming 14,340 lives, according to statistics from the Yunnan AIDS Prevention Bureau.The number of HIV infections contracted through sexual contact has been rising and sexual contact is now the main cause of the disease's proliferation, said Xu Heping, director of the bureau.Of the province's infected population, 45.8 percent contracted the disease through sexual contact, while 37.3 percent contracted the disease through intravenous drug abuse, according to the bureau.Sexually transmitted infections accounted for 77.3 percent of new infections during the January-October period, up from 71.3 percent during the same period last year, according to the statistics.Xu said this year's new infections mainly occurred in people between the ages of 20 and 39, accounting for 60.8 percent of the total.Infections among rural residents and unemployed people accounted for 55.3 percent and 18.6 percent, respectively, of this year's total, according to Xu.Lu Lin, director of the Yunnan disease control and prevention center, said migrant workers are particularly vulnerable to the disease due to their nomadic nature and lack of knowledge about the disease.China currently has 346,000 registered HIV carriers and AIDS patients, although the actual number is predicted to hit 780,000 by the end of this year, according to an expert panel consisting of members of China's Ministry of Health (MOH), the World Health Organization and UNAIDS.

NANJING, Dec. 20 (Xinhua) -- Chinese Premier Wen Jiabao has called for the country to maintain confidence that it can weather challenges amid a "complicated and tough" outlook of economic development."As in 2008, we are now encountering difficulties which can be overcome through hard work," Wen said during his tour to eastern Jiangsu province on Sunday and Monday.Elaborating on the grim situation, Wen said the growth of China's exports has been slowing and the pace of the slowdown has accelerated, especially in the past three months. Meanwhile, the profit margin of the country's manufacturing industry has been squeezed and some enterprises have even fallen into the red.Chinese Premier Wen Jiabao (C) talks to staff members in a small loan company for rural areas in Suzhou National New & Hi-Tech Industrial Development Zone in Suzhou City, east China's Jiangsu Province, Dec. 19, 2011. Wen Jiabao made an inspection tour in Jiangsu on Dec. 18 and 19. He noted that the country is also facing shrinking external demand, rising costs and pressure from both slowing economic growth and high inflation, which makes macro-economic regulation more difficult.Despite emerging challenges, however, the current momentum of China's economic development is "generally good," Wen said.China's economic growth has been slowing all year but remains above the global average. Its GDP growth slowed to 9.1 percent in the third quarter from 9.5 percent in the second quarter and 9.7 percent in the first quarter.To tackle the challenges, Wen said the country will boost domestic demand while stabilizing external demand and keep its export policies such as export tax rebates "basically stable" in the coming year.Efforts should also be made to enhance domestic enterprises' competitiveness, promote the transfer of industry to the country's western regions, and develop the international market, especially in emerging economies, he said.He said China will stick to, and further improve upon, the opening-up policy and welcome foreign enterprises to invest in the country, adding that the country will protect intellectual property rights and implement a fair and open bidding approach in terms of government procurement.Wen also demanded efforts be made to encourage private investment in sectors such as railways, public facilities, finance, energy, education and health-care.Furthermore, he urged banks to take concrete action in better serving the real economy and asked financial institutions to enhance support for enterprises while improving management in order to control the capital bubble and prevent risks.Wen said the southern parts of Jiangsu should engage in a comprehensive development strategy to build the province into a forefront of the country's opening-up drive.

BEIJING, Dec. 12 (Xinhuanet) -- For many multinational firms, the past 10 years in China have not only marked the rise of the world's second-largest economy but have also been a decade of expansion and profit growth.As they look back at this "golden decade", which is often used to describe the days after China entered the World Trade Organization (WTO) in 2001, their early expectations and ambitions in a more liberalized Chinese market were found to be more than fulfilled.When German auto giant BMW set foot on the Chinese mainland by establishing its first office in Beijing in 1994, its products were still far too luxurious for ordinary Chinese.In 2001, only 6,500 vehicles were sold under the BMW and Mini brands in China.NYK Diana, a container ship, anchors at Qingdao Port in East China's Shandong province on Thursday, as workers load cargo.But sales started to pick up with China's WTO entry, when the removal of trade barriers brought unprecedented economic growth and a booming market.In 2010, the vehicle maker, which started a joint venture with the domestic Brilliance China Automotive in 2003, sold 169,000 vehicles in China.That record is set to be broken this year as more than 170,000 cars were sold only in the first three quarters."We are both beneficiaries and firm supporters of the open market system," said Christoph Stark, president and CEO of BMW's Greater China region.By liberalizing its market, China, which celebrated the 10th anniversary of its WTO accession on Sunday, has become a thriving market and a savior for foreign enterprises hit hard by the global downturn.In 2009, when General Motors declared bankruptcy in the United States amid the global recession, its Chinese branch saw sales rise 66.9 percent year-on-year to more than 1.8 million units.In 2010, China overtook the United States to become GM's largest national market.The list of similar companies is extensive, as China's decade-long membership of the WTO has helped the Asian powerhouse attract 347,000 foreign firms with investment of more than 0 billion in the past 10 years.Chong Quan, deputy representative for China's international trade talks, said foreign enterprises made more than 0 billion in profit in the 10-year period, with an average annual increase of 30 percent."The accession to the WTO has made China a more transparent, safe and predictable market, as well as an essential part of the global economy," said Dominique Poulique, president of Alstom China.The French power engineering and train company, with more than 30 entities and about 10,000 employees in China, is one of the major foreign suppliers to the Chinese rail transport market."Rapid changes took place in China in the past decade, with its massive investment in infrastructure construction and notable development in energy," Poulique said.Wang Zhile, director of the research center of transnational cooperation under the Ministry of Commerce, said increasing shared interests between China and multinationals are putting them into an inseparable community, one that has found win-win solutions in the past decade.There is also high-quality labor at a relatively low cost, including white-collar workers, he added.Admittedly, the huge market and rich resources have powered up multinational firms in global competition, especially during and after the financial crisis.Forty-nine percent of the responding multinational companies had higher expectations for China in the wake of the global financial crisis in 2008 and 2009, according to a recent survey by the Economist Intelligence Unit, a business information arm of the Economist Group.Although showing signs of a slowdown, China's economy is still widely expected to grow by more than 8 percent next year, at a time when debt and financial instability are weakening growth in other leading economies.Poulique said he expected China's rapid growth to continue into the next decade, especially in the infrastructure construction market."For Alstom, the top task here is to keep adapting to the changing business environment," he said.Many foreign companies are moving research and development facilities to China in the hopes of making it a base for talent and technology.In Shanghai, 347 multinationals have set up regional headquarters, with the establishment of 333 foreign-funded research and development centers.

BEIJING, Dec. 29 (Xinhua) -- Chinese authorities broke up more than 1,800 dens that made or sold counterfeit drugs in cases that involved 3.35 billion yuan (530 million U.S. dollars) in a two-year crackdown, according to the State Food and Drug Administration (SFDA).During the campaign, 13 government departments mobilized more than one million law enforcement workers to combat the sale of fake drugs via online advertising or consignment, seizing more than 5,000 kinds of illegal products, said SFDA deputy head Bian Zhenjia Thursday at a meeting.According to Bian, the action also targeted malpractice during the manufacturing process as well as selling non-pharmaceutical products as drugs.In the operation, authorities conducted more than 28,000 on-site inspections in medicine production factories and halted the production of 98 varieties of drugs, Bian said.However, Bian noted that problems still exist, including rampant illegal drug advertising and online sales of fake drugs, improper manufacturing practices and outdated laws and regulations concerning drug safety.Bian said the SFDA will continue to cooperate with other government departments and step up supervision and crackdowns on the online sale of fake drugs.

来源：资阳报