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UNITED NATIONS, April 7 (Xinhua) -- To celebrate the 50th anniversary of the first human space flight, accomplished on April 12, 1961 by Soviet cosmonaut Yuri Gagarin, the Russian Permanent Mission to the United Nations, the Russian Federal Space Agency and the ITAR-TASS information agency organized an exhibition which was opened here on Thursday."The first human space flight is not one of the most significant events of the past century, but of human history in general," Vitaly Churkin, the Russian permanent representative to the UN, said at the opening ceremony."It's a symbol of courage, thirst for knowledge, and progress," Churkin said.The exhibition contained archival photos telling the story of the first human space flight and of those who made it possible, and historic pictures of Gagarin.As part of the celebration of human space flight's 50th anniversary the UN Postal Administration designed postal stamps which will be issued on April 12, to tell the story of progress that humankind has made beyond earth's boundaries, as Kiyo Akasaka, Under-Secretary-General for Communications and Public Information put it."Fifty years have passed since that amazing voyage, but the legend of Gagarin's courage and journey to the 'final frontier' continues to be a source of inspiration for space exploration for peoples and nations around the world," Akasaka said at the opening of the exhibition.According to Akasaka, the exhibition "sparks people's imagination about what is possible through the peaceful use and exploration of outer space."Other attendees included Russian cosmonaut Oleg Kotov.Gagarin, also known as the Columbus of the Cosmos, traveled into outer space on the height of the Cold War when the Berlin Wall was built, at a moment when it was hardly impossible to imagine that more than 15 nations would work together in humanity' s permanent space outpost -- the International Space Station.The Russian icon of space spoke the historic words "the earth is blue, how wonderful. It is amazing."On Thursday the UN General Assembly adopted a resolution declaring April 12 as the International Day of Human Space Flight.

BEIJING, Feb. 23 (Xinhua) -- A senior official of the ruling Forces pour la Defense de la Democratie (FDD) of Burundi said Tuesday the FDD hopes to strengthen cooperation with the Communist Party of China (CPC) and to further enhance the "brotherly friendship" with the CPC.Mohamed Rukara, vice president of the Council of Elders, the top decision-making body of the FDD, said in an interview with Xinhua that there are a lot of ruling experiences of CPC that the FDD can learn from.He said the CPC has gained great achievements in China's reform and opening up, realizing sustainable development, developing science and technology and striking corruption.He said Burundi has set "sustainable development" as the slogan for the 2010-2015 period, and he believed that his country can learn from China's successful experiences of reform and opening up and realize the goal of shaking off poverty by 2020-2025.Rukara, who is also a ombudsman, said corruption has been a big challenge facing his country, and he believed the FDD can learn from the CPC in this regard, as the latter has been combating corruption very hard and effectively.Appreciating China's aid and contribution to the development of Burundi, Rukara said the two parties and the two countries have had very good relations based on mutual respect.He welcomed more Chinese enterprises to invest in Burundi to support its development, and "the door will always be open to our brother."At the invitation of the CPC, Rukara is heading an FDD delegation for a visit to China starting from Saturday.

WASHINGTON, May 11 (Xinhua) -- NASA's Dawn spacecraft has obtained its first image of the giant asteroid Vesta, which will help fine-tune navigation during its approach, the U.S. space agency announced Wednesday.Dawn expects to achieve orbit around Vesta on July 16, when the asteroid is about 117 million miles from Earth.The image from Dawn's framing cameras was taken on May 3 when the spacecraft began its approach and was approximately 752,000 miles (1.21 million km) from Vesta. The asteroid appears as a small, bright pearl against a background of stars. Vesta also is known as a protoplanet, because it is a large body that almost formed into a planet."After plying the seas of space for more than a billion miles, the Dawn team finally spotted its target," said Carol Raymond, Dawn's deputy principal investigator at NASA's Jet Propulsion Laboratory in Pasadena, California. "This first image hints of detailed portraits to come from Dawn's upcoming visit."Vesta is 330 miles (530 km) in diameter and the second most massive object in the asteroid belt. Ground- and space-based telescopes obtained images of the bright orb for about two centuries, but with little surface detail.Mission managers expect Vesta's gravity to capture Dawn in orbit on July 16. To enter orbit, Dawn must match the asteroid's path around the sun, which requires very precise knowledge of the body's location and speed. By analyzing where Vesta appears relative to stars in framing camera images, navigators will pin down its location and enable engineers to refine the spacecraft's trajectory.Dawn will start collecting science data in early August at an altitude of approximately 1,700 miles (2,700 km) above the asteroid's surface. As the spacecraft gets closer, it will snap multi-angle images allowing scientists to produce topographic maps. Dawn will later orbit at approximately 120 miles (200 km) to perform other measurements and obtain closer shots of parts of the surface. Dawn will remain in orbit around Vesta for one year. After another long cruise phase, Dawn will arrive in 2015 at its second destination, Ceres, an even more massive body in the asteroid belt.Gathering information about these two icons of the asteroid belt will help scientists unlock the secrets of our solar system's early history. The mission will compare and contrast the two giant asteroids shaped by different forces. Dawn's science instruments will measure surface composition, topography and texture. Dawn also will measure the tug of gravity from Vesta and Ceres to learn more about their internal structures. The spacecraft's full odyssey will take it on a 3-billion-mile (5-billion-km) journey, which began with its launch in September 2007.

WASHINGTON, May 17 (Xinhua) -- A variation in a gene involved in regulating cholesterol in the bloodstream also appears to affect progesterone production in women, making it a likely culprit in a substantial number of cases of their infertility, a new study from Johns Hopkins University researchers suggests.The Hopkins group has also developed a simple blood test for this variation of the scavenger receptor class B type 1 gene ( SCARB1) but emphasized there is no approved therapy yet to address the problem in infertile women.Following up studies in female mice that first linked a deficiency in these receptors for HDL -- the so-called "good" or " healthy" cholesterol -- and infertility, researchers report finding the same link in studies of women with a history of infertility.The findings has been published on-line this week in the journal Human Reproduction.If the new study's findings hold up on further investigation, the John Hopkins team says they not only will offer clues into a genetic cause of some infertility, but could also lead to a treatment already shown to work in mice."Infertility is fairly common and a lot of the reasons for it are still unknown," warns endocrinologist Annabelle Rodriguez, an associate professor of medicine at the Johns Hopkins University School of Medicine and the lead author. "Right now, the benefit of this research is in knowing that there might be a genetic reason for why some women have difficulty getting pregnant. In the future, we hope this knowledge can be translated into a cure for this type of infertility."

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."

来源：资阳报