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BEIJING, Nov. 30 (Xinhuanet) -- Heading football frequently may cause brain damage leading to subtle but serious declines in thinking and coordination skills, a new study suggested as quoted by media reports Wednesday.Researchers used an advanced MRI (Magnetic Resonance Imaging) technique to analyze changes in brain white matter of 32 adult amateur soccer players who head balls 436 times a year on average.The study found players who head football quite frequently -- with 1,000 or more a year -- showed abnormalities similar to traumatic brain injuries suffered in car accidents."This is the first study to look at the effects of heading on the brain using sophisticated diffusion tensor imaging," said Dr. Michael Lipton, a leading researcher and associate director of the Gruss Magnetic Resonance Research Center at the Albert Einstein College of Medicine in New York City."We found the real implication for players isn't from hitting headers once in a while, but repetitively, which can lead to degeneration of brain cells," he added.The researchers compared neurological images of study participants, whose average age was 31, and found those with the highest volume of headers had abnormalities in five areas of the brain, responsible for attention, memory, physical mobility and high-level visual functions.The findings come in the wake of mixed reports on the so-called "cognitive" consequences of frequently heading soccer balls at practice.Dr. Chris Koutures, a pediatrician and sports medicine specialist in Anaheim Hills, California, said the retrospective imaging study was fascinating, but needs more data to effectively determine safe header limits, especially for younger players.Dr. Lipton agreed neuropsychological damage from headers would be hard for a coach or physician to notice since cognitive problems develop gradually, and even players might not be aware of mild memory loss."We can't tell an individual today not to be heading a ball, but caution is a good thing," Lipton said. "We need more research for definitive answers and we have the advanced imaging tools to do it."

WASHINGTON, Jan. 19 (Xinhua) -- New research published this week in Nature Medicine indicates that targeted drugs such as gefitinib might more effectively treat non-small cell lung cancer if they could be combined with agents that block certain microRNAs.The study, led by investigators with the Ohio State University Comprehensive Cancer Center, shows that overexpression of two genes called MET and EGFR causes the deregulation of six microRNAs, and that this deregulation leads to gefitinib resistance.The findings support the development of agents that restore the levels of these microRNAs. It offers a new strategy for treating non-small cell lung cancer, which is responsible for about 85 percent of the 221,000 lung-cancer cases and 157,000 deaths that occur annually in the United States. It also suggests that measuring the expression levels of certain microRNAs -- those controlled by the MET gene -- might predict which lung-cancer cases are likely to be resistant to gefitinib.Epidermal growth factor receptor (EGFR) is frequently overexpressed in non-small cell lung cancer, and this leads to uncontrolled cell proliferation. Gefitinib selectively inhibits EGFR activation and triggers cancer cells to self-destruct by apoptosis. However, non-small cell lung cancer cells inevitably develop resistance to the drug. The study reveals how this resistance occurs."Our findings suggest that gefitinib resistance that is caused by MET overexpression is at least partly due to miRNA deregulation, " says principal investigator Carlo Croce.

BEIJING, Dec. 25 (Xinhuanet) --  China is likely to test a new Internet protocol in the next few years in an attempt to further develop the country's Internet, senior officials from the State Council said on Friday.The country will put the Internet Protocol version 6 (IPv6)-based network into small-scale commercial pilot use by the end of 2013, and deploy and commercialize the IPv6-based network on a large scale between 2014 and 2015, according to a statement released after an executive meeting of the State Council that was presided over by Premier Wen Jiabao."The development of IPv6 is one of the most important tasks for China's Internet industry during the 12th Five-Year Plan period, from 2011 to 2015," said Hu Qiheng, director-general of the Internet Society of China.Analysts believe the transition from the latest Internet protocol, IPv4, to IPv6 is irreversible. This year, the pool of Internet addresses in IPv4 has come close to being tapped out, and the supply of domain names has run short.Compared with IPv4, IPv6 will offer more IP addresses and, for that reason, more devices will be able to connect directly to the Internet, said Microsoft Corp, one of the main technical supporters of IPv6.By 2010, China had about 278 million IPv4 addresses, according to data from the China Internet Network Information Center. That was far fewer than the 450 million Internet users who live in the country."This is the first time the government has issued a schedule for IPv6 development, and it will benefit the entire industry," said Chen Qi, deputy general manager of BII Group Holding Ltd, an IPv6 service provider based in Beijing.IPv6 will enable telecommunication operators to allocate more IP addresses to their clients and will probably bring more users to those operators, Chen said.Five Chinese telecommunications carriers, including China Telecom Corp and China Mobile Ltd, had established IPv6 networks as early as 2006, the New York Times reported.China will need "far too many" IPv6 addresses in the coming years, according to Paul Wilson, director general of Asia Pacific Network Information Center, an organization responsible for allocating IP addresses.The profits made by Chinese manufacturers of telecommunications equipment, such as Huawei Technologies Co Ltd and ZTE Corporation, will also increase, a result partly of a rise in the demand for routers and Internet switches, Chen said.China launched the construction of the next-generation Internet in 2003, featuring the IPv6 network as a key technology. Even though IPv6 has not been put into commercial use, Chinese universities are among the first institutions to connect to IPv6.

BEIJING, Oct. 8 (Xinhua) -- The rise of China is the definitive economic and political story of the time, yet the 1911 Revolution should not be overlooked, as it was the catalyst that enabled the nation to terminate more than 2,000 years of imperial rule -- one of the longest periods of autocratic rule in the world.China will commemorate the centennial anniversary of the 1911 Revolution, or Xinhai Revolution, with a grand ceremony on Sunday. The legacies of the revolution are set to inspire the world's most populous country with an ancient civilization to continue swimming with the tide of the times, marching on the road to become an empowered modern nation.The 1911 Revolution, which began on October 10, 1911, with an armed uprising, ended the imperial rule established by Emperor Qinshihuang in B.C.221 by toppling the Qing Dynasty (1644-1911) and resulting in a republican government, the first in Asia.Behind the revolution was a burgeoning democratic movement and the rising influence of Western civilization.The revolution not only rid Chinese men of humiliating ponytails and women of the excruciatingly painful foot-binding, but also removed the people's blind faith in the emperor, as well as the fear of foreign powers. The event has since been emancipating people's minds from thousands of years of oppression and self-enclosure.China has become a rising power in sharp contrast to 100 years ago when every country could bully it.Over the past century, the nation united to fight for its destiny and independence. From the Opium War (1840-1842) to the Xinhai Revolution, patriots from all walks of life came together to fight against the imperial autocracy and foreign invasion, with the aim of national rejuvenation by building a country that's respected by the world.Rejuvenation is the common will of the civilization that has existed for over 5,000 years, and no one can halt the process.The 1911 Revolution, led by Dr. Sun Yat-sen, overthrew imperial rule and opened the gate for China's modernization. Yet the dreams of Sun were not fully accomplished, as leaders of the revolution were from the capitalist class and the masses of workers and farmers were not given full play. They still lived in poverty, their democracy and freedom not guaranteed.Ten years after the 1911 Revolution, the Communist Party of China (CPC) was founded. It took the banner from Sun and shouldered the responsibility of rejuvenating the nation.History has proven that only those who fight for the interests of the people can lead the country to success.Looking back at the past 100 years, it is clear that the Chinese nation swam with the tide of the times, moving forward in the right direction of humanity.Dating back thousands of years, China was among the first countries that shifted from a slave society to feudalism and took the lead toward advanced technologies and outstanding institutions and culture.However, imperial China failed to embrace reform while Western countries overthrew feudalism and emancipated the productive forces after the Renaissance. The failure of the Middle Kingdom was a result of standing still and refusing to make progress by insisting imperial autocracy.The 1911 Revolution was a positive response from China, a result of the country's pioneers applying lessons learned from the outside world. It was also a move from an agricultural society to an industrial society, from autocracy to democracy, and from the emperor's courtyard to the home of ordinary people.But it failed to establish a modern system to eliminate long-standing malpractices and push forward the country's development. China was mired in civil wars and foreign invasions in the first half of the 20th century before the mantle of leadership was handed over to the CPC.Looking to the future, the Chinese people have realized they cannot rest on their achievements. They need to be vigilant against unexpected changes and learn from advanced civilizations with open minds. They must exert effort for domestic economic construction rather than seeking world hegemony.The rejuvenation of the Chinese nation will be a long and difficult process, and development still deserves to be a top priority.Although China has become the world's second largest economy, it remains a developing country, and its GDP per capita ranks only about 100th in the world. Poverty and backwardness still can bee seen in many parts of the country.And the ancient feudal tradition, including the rule of man in certain areas, is still one of the major obstacles hindering China from realizing its modernization goal.During his speech entitled "The Path to China's Future" at Britain's renowned Royal Society in June, Premier Wen Jiabao said, "China was long under the influence of feudalism. After the founding of New China, the country went through the turmoil of the decade-long Cultural Revolution. Since China opened itself, some new developments and problems have occurred."Promoting democracy, improving the legal system and strengthening effective oversight of power remains a long and arduous task for the nation.To commemorate the 1911 Revolution, with a keen sense of responsibility and democracy, people will spur social progress. The more the people participate in social management and public affairs, the greater the momentum there will be to sustain social progress.As for China's development, worldwide observers need to take a more patient and milder attitude.It is better to bear in mind that China feared no difficulties in the history and is pushing forward the reform and opening up with greater resolve.China has conformed with the general situation of the world and the universal values of humanity and is on its way to becoming a modern and progressive country that seeks common development and interests with other countries.One hundred years after the revolution, China is again at a crucial point. The world is undergoing fundamental changes, while scientific and technological revolution and economic globalization are progressing every day. With the financial crisis and other problems, the future of the world is uncertain.Only by swimming with the tide of the times can China achieve complete rejuvenation and make greater contributions to humanity.

DOHA, Jan. 19 (Xinhua) -- Visiting Chinese Premier Wen Jiabao met here Wednesday with Qatari Emir Sheikh Hamad bin Khalifa al-Thani over bilateral ties.During the meeting, Wen said China-Qatar relations have seen rapid development although diplomatic ties between the two countries are young.Both countries have adhered to the principles of respecting each other and treating each other as equals, the premier noted.The Chinese and Qatari economies are highly complementary, and China is ready to work with Qatar to push bilateral political relations and pragmatic cooperation to higher levels from a strategic perspective, said Wen.Chinese Premier Wen Jiabao (L) meets with Sheikh Hamad bin Khalifa al Thani (R), the emir of Qatar, in Doha, capital of Qatar, Jan. 18, 2012.He said he has deeply felt the Arab people's friendship toward the Chinese people during his ongoing Gulf tour, which had taken him to Saudi Arabia and the United Arab Emirates before he arrived in Doha earlier Wednesday.The development of the China-Arab relations has a solid political foundation and enjoys extensive public support, Wen said, adding that both sides hope to intensify pragmatic cooperation so as to promote their socioeconomic development and bring tangible benefits to their peoples.The Chinese premier said he is confident in the future of the China-Arab relations.Noting that profound and complicated changes are taking place across West Asia and North Africa, Wen said China believes that countries in the region can solve their own problems by themselves.China supports the efforts made by Qatar and other Gulf nations in maintaining regional stability, he said, adding that the international community should play a constructive role in this regard and that China is ready to enhance communication and coordination with Qatar.The emir, for his part, said Wen's visit has yielded fruitful results and greatly improved bilateral relations.He said Qatar is committed to pushing forward friendly cooperation with China in various areas, carrying out Qatar-China cooperation projects and stepping up coordination and collaboration with China on regional and world affairs so as to lift the bilateral relations to higher levels.

来源：资阳报