抚顺大型工业吸尘器(宜春大型工业吸尘器) (今日更新中)

BEIJING, March 3 (Xinhuanet) -- A new study suggested that regular use of painkiller ibuprofen may cut the risk of developing Parkinson's disease, according to Reuters reports.The research findings were published in the online edition of the journal Neurology on Wednesday and later will appear in the print edition on March 8.The study, which followed more than 136,000 U.S. men and women for six years, showed that people who took ibuprofen at least twice a week were 38 percent less likely to develop Parkinson's, a brain disorder that causes tremors and movement problems, compared to those who didn't take the pain reliever so often.Ibuprofen is sold in the U.S. as a non-steroidal anti-inflammatory drug (NSAID). But the study didn't prove that other NSAIDS, like aspirin or naproxen, could also cut the Parkinson's risk."Our study suggests ibuprofen could be a potential neuroprotective agent against Parkinson's," says lead researcher Dr. Xiang Gao from Harvard Medical School, "Protective effects are seen after taking ibuprofen two or more times a week. That's so-called regular use."However, he also warned that no proof has been found that ibuprofen itself can help ward off Parkinson's, and said that it's too early to recommend people to start taking ibuprofen to protect against the disorder.Gao said, "We just see an association, not some causal relationship."Besides, regular ibuprofen use has risks, like stomach bleeding and kidney damage.

BEIJING, Jan. 31 (Xinhua) -- Senior Chinese leader Li Changchun Monday visited performers and producers of China Central Television's Spring Festival gala during their rehearsal.Li, a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, extended new year greetings to the crew.Li Changchun (front R), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, shakes hands with actors at the rehearsal of the Spring Festival Gala Evening at China Central Television (CCTV) in Beijing, China, Jan. 31, 2011. He hoped an excellent show will be presented on the eve of the Spring Festival, or Lunar New Year, which falls on Feb. 3.The annual Lunar New Year gala celebration started in the 1980s. Since then, it has been the most popular TV event, attracting a major portion of China's 1.3 billion population each year.

LOS ANGELES, May 2 (Xinhua) -- An asteroid will fly past Earth this fall at a close approach that will allow a close-up view of one of Earth's good-sized space rocks, NASA's Jet Propulsion Laboratory (JPL) announced on Monday."On November 8, asteroid 2005 YU55 will fly past Earth and at its closest approach point will be about 325,000 kilometers away," said Don Yeomans, manager of NASA's Near-Earth Object Program Office at the JPL in Pasadena, Los Angeles."This asteroid is about 400 meters wide -- the largest space rock we have identified that will come this close until 2028."Despite the relative proximity and size, "YU55 poses no threat of an Earth collision over, at the very least, the next 100 years, " Yeomans said in a press release."During its closest approach, its gravitational effect on the Earth will be so miniscule as to be immeasurable. It will not affect the tides or anything else.""While near-Earth objects of this size have flown within a lunar distance in the past, we did not have the foreknowledge and technology to take advantage of the opportunity," said Barbara Wilson, a scientist at JPL. "When it flies past, it should be a great opportunity for science instruments on the ground to get a good look.""The best resolution of the radar images was 7.5 meters per pixel," said JPL radar astronomer Lance Benner. "When 2005 YU55 returns this fall, we intend to image it at 4-meter resolution with our recently upgraded equipment at the Deep Space Network at Goldstone, California. Plus, the asteroid will be seven times closer. We're expecting some very detailed radar images."Asteroid 2005 YU55 was discovered in December 2005 by Robert McMillan, head of the NASA-funded Spacewatch Program at the University of Arizona, Tucson. The space rock has been in astronomers' crosshairs before.In April 2010, Mike Nolan and colleagues at the Arecibo Observatory in Puerto Rico generated some ghostly images of 2005 YU55 when the asteroid was about 2.3 million kilometers from Earth.

BEIJING, Feb. 12 (Xinhua) -- China's recent revocation of a national scientific award due to academic fraud has been welcomed by the public, but experts warn the country still has a long way to go to bring an end to such dubious academic practices.On Feb. 1, China's Ministry of Science and Technology, revoked the State Scientific and Technological Progress Award (SSTPA) given to Li Liansheng, former professor of Xi'an Jiaotong University in 2005.An investigation found Li had plagiarized others' works and fabricated data in his winning project, a research on key technologies for designing and manufacturing scroll compressors. Li was investigated after the science ministry received tip-offs from six professors (including four retired) in his university.The ministry subsequently canceled his prize and retrieved the money awarded.Zhao Baojing, a senior official with the National Office for S&T Award, told Xinhua it was the first time China had withdrawn a national scientific honor.The revocation soon sparked pubic discussion over academic integrity. Tan Gang, a citizen in Shenzhen, wrote on his microblog, "Though the revocation came a bit late, it is progress. It's a warning against academic misconduct."Shi Ying, vice director of Shanxi Academy of Social Sciences, said, the move demonstrated China's "zero-tolerance" for academic fraud, and would help clean up the academic field."However, academic fraud is still rampant, which not only damages academic integrity, but also harms the innovative capacity of China in a broader sense," said Shi.Anti-fraud activist Fang Zhouzi, who runs a website on anti-academic fraud from his Beijing home, said "This is by far the harshest stance China has ever taken against academic fraud, which should be viewed as progress." He so noted China still has a long way to go in the fight against academic fraud.Fang said, the science ministry's move does not mean China is really cracking down on academic fraud. The plagiarist might have not been found out if it were not for years of unyielding efforts made by the six professors.The scandal again highlights that academic fraud is alive and well in China. A survey conducted among 30,078 respondents in 2009 by the China Association for Science and Technology (CAST) showed that nearly half of the science-related workers in China's research institutes, universities, medical institutes and hospitals think academic cheating is "common."Fang attributed the prevalence of academic fraud in China to lax punishments and loopholes in the academic evaluation system.Zero tolerance of academic fraudChina's science minister, Wan Gang, said on several occasions "We hold zero tolerance for academic fraud."However, Fang said "zero tolerance" was a slogan rather than the actual case. Many cases of academic fraud, even publicly exposed, were "tolerated" eventually. "Lax punishment makes academic fraud less costly."

DAVOS, Switzerland, Jan. 29 (Xinhua) -- China is ready to push the decade-long Doha Round negotiations for a final success, Chinese Minister of Commerce Chen Deming said here on Saturday.Speaking at the World Trade Organization (WTO) Mini-Ministerial Meeting which brought together representatives from over 20 major trading powers, Chen said that China is ready to collaborate with other WTO members in a practical and proactive manner so as to draw a successful conclusion of the Doha Round talks by the end of 2011.A rapid conclusion of the negotiations, Chen said, will be beneficial to global economic recovery, which is to the interest of all.The commerce minister acknowledged the year 2011 as a "window of opportunity," albeit a narrow one."China will give support to the roadmap proposed by WTO Director-General Pascal Lamy," he said, adding that the country is willing to act vigorously to push forward the negotiation process.To ensure that an early final deal could be in reach, Chen said, parties should set goals in a practical manner, in accordance with the ambition level, and stick to what has been achieved as well as the Doha Development Agenda (DDA), while focusing primarily on pending issues.Held on the sidelines of the annual World Economic Forum, the WTO Mini-Ministerial Meeting is an annual event under the auspices of the Swiss Federal Government.Chen on Friday also joined discussions with his counterparts from the emerging club -- India, Brazil and South Africa, before attending the trade G7 meeting, consisting of Australia, Brazil, China, the European Union, India, Japan and the United States.

来源：资阳报