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LOS ANGELES, April 7 (Xinhua) -- Using NASA's Galaxy Evolution Explorer (GEE) satellite, U.S. astronomers are hunting for nearby, hard-to-see stars which could very well be home to the easiest-to-see alien planets, it was announced on Thursday.U.S. astronomers are ferreting out the new targets after the glare of bright, shining stars has frustrated most efforts at visualizing distant worlds, NASA's Jet Propulsion Laboratory (JPL) said.So far, only a handful of distant planets, or exoplanets, have been directly imaged. Small, newborn stars are less blinding, making the planets easier to see, but the fact that these stars are dim means they are hard to find in the first place."Fortunately, the young stars emit more ultraviolet light than their older counterparts, which makes them conspicuous to the ultraviolet-detecting GEE," JPL said in a press release."We've discovered a new technique of using ultraviolet light to search for young, low-mass stars near the Earth," said David Rodriguez, a graduate student of astronomy at University of Californian, Los Angeles. "These young stars make excellent targets for future direct imaging of exoplanets."Young stars, like human children, tend to be a bit unruly -- they spout a greater proportion of energetic X-rays and ultraviolet light than more mature stars. In some cases, X-ray surveys can pick out these youngsters due to the "racket" they cause. However, many smaller, less "noisy" baby stars perfect for exoplanet imaging studies have gone undetected except in the most detailed X-ray surveys. To date, such surveys have covered only a small percentage of the sky, according to JPL in Pasadena, Los Angeles.Rodriguez and his team figured that the GEE, which has scanned about three-quarters of the sky in ultraviolet light, could fill this gap.Astronomers compared readings from the telescope with optical and infrared data to look for the telltale signature of rambunctious junior stars. Follow-up observations of 24 candidates identified in this manner determined that 17 of the stars showed clear signs of youth, validating the team's approach, JPL said."The Galaxy Evolution Explorer can readily select young, low- mass stars that are too faint to turn up in all-sky X-ray surveys, which makes the telescope an incredibly useful tool," Rodriguez said in the release.

BEIJING, Feb. 25 (Xinhua) -- Chinese Vice Premier Li Keqiang on Thursday ordered local governments to increase funding for affordable housing projects, stressing that the construction of 10 million units was a mandatory task that must be fulfilled this year.Speaking at a national conference on affordable housing for low and middle income groups, Li said that the construction of 10 million affordable housing units this year is of great significance for the government to stabilize public expectations, control housing prices, improve people's lives and boost domestic consumption."Housing is imperative for people's lives and local governments must waste no time in beginning the construction of 10 million affordable housing units this year and putting them into service as early as possible," Li said.To facilitate the government's subsidized affordable housing projects, Li said that local governments should ensure basic market supply with small units and guide the public to "reasonable consumption."More efforts are also needed to develop low-rent public housing and satisfy the demands of residents for affordable public housing, Li said. To support the construction of affordable housing, local governments can use tax breaks, determine the rent for public housing reasonably and finance construction projects in different ways, such as bank loans and social investment, he added.Li also called on local governments to increase land supplies for common commercial housing construction. The vice premier called on authorities to ensure transparency and fairness in the distribution of affordable housing units to benefit low-income groups who are in need.He stressed the need to discourage house purchases for the purposes of investment and speculation and to increase the supply of common commercial apartments and strictly implement the central government's macro control policies for the real estate market.The Chinese central government signed strict agreements with provincial governments to guarantee the construction of 10 million government-subsidized apartments this year. The target of building 10 million government-subsidized apartments is 72.4 percent more than last year, according to official figures.China's affordable housing provisions are divided into different categories, including "economic housing" that are sold below market prices, "price-capped housing," government-owned "low-rent housing" for extremely poor residents and "public-rent housing" for a wider range of people.

SHANGHAI, May, 13 (Xinhua) -- Scientists attending a recent high-level conference on robotics agreed that great progress has been made in the field, but strict rules for the safe usage of robots should be implemented."Four years ago, if you went into a Chinese factory and said 'robots can help you work,' you would be kicked out. But now, China has a large industrial robot market, along with Japan, the Republic of Korea and the United States," says Li Zexiang, general chair of the 2011 International Conference on Robotics and Automation (ICRA 2011), which concluded Friday in Shanghai.Chinese robotics researchers have suggested to the government that rules and regulations for robot usage should be created. Professor Wang Tianmiao from the Beihang University (BUAA) told Xinhua about the suggestions during the conference.Wang says that in the future, it might not be possible for artificial intelligence to take the place of humans in some social roles. However, Wang says that mankind should pay close attention to the possible dangers of advancements in robotics, as the industry is currently undergoing dramatic changes.The five-day conference, which is organized by the Institute of Electrical and Electronics Engineers (IEEE), took place in China for the first time ever since its first session in 1984, which took place in the city of Atlanta in the United States.Media reports show that Japan, the Republic of Korea (ROK) and several Western countries have already drafted rules about the safe use of robots.

BEIJING, Feb. 24 (Xinhua) -- Graft remains one of the Chinese people's top concerns, as indicated by online polls from two mainstream media in China prior to the country's annual parliamentary and political advisory sessions.As of 9 p.m. on Thursday, over 54,000 Internet users voiced their concerns over "the fight against corruption and efforts to build a clean government" in an online survey launched by the Xinhua News Agency.Corruption came in at fourth place behind "curbing housing prices," "income distribution" and "control of commodity prices."The poll was launched by Xinhua and was meant to solicit public opinion ahead of the annual sessions of the National People's Congress (NPC) and the National Committee of the Chinese People's Political Consultative Conference (CPPCC).In a survey posted on People.com.cn, a website subsidiary of the People's Daily newspaper, "anti-graft" was among the most selected topics following "social security" and "judicial justice."Internet users pinned their hopes on the forthcoming parliamentary and political advisory sessions, which are scheduled to open in early March.They hope that their voices would be heard by the country's lawmakers and political advisors, who would represent them in the two sessions and would take all possible measures to tackle a number of social issues including the fight against corruption."I hope that the Central Committee of the Communist Party of China (CPC) combats graft comprehensively and severely to ensure a Party with a clean work style, a society with justice and assures the Chinese people that they would not be wronged," said an Internet user from Jiangxi province in a forum entitled "voicing my wishes to Premier Wen Jiabao at the 2011 two sessions " on xinhuanet.com.Internet users believe that the spread of corruption in some places had hindered China's economic development, undermined social stability and harmed the relationship between the people and officials.The fight against corruption, therefore, is a significant factor in determining whether or not China can reach its goals outlined in its Twelfth Five-year Program (2011-2015) on National Economic and Social Development, an Internet user wrote."Corruption has affected Chinese people's life through its spread into many social sectors. As the two sessions represent an open platform to reflect the people's will, citizens hope to push forward the cause of anti-corruption through legislation, thus addressing their common concerns." said Ren Jianmin, director of the Anti-corruption and Governance Research Center of Tsinghua University.The CPC has never relaxed its efforts to fight against corruption, experts say.Last year saw four ministerial-level Chinese officials placed under a graft probe or removed from their posts. Among these officials were Zhang Jiameng, former vice chairman of the Zhejiang Provincial People's Congress Standing Committee in southeast China, and Zhang Jingli, former deputy director of the State Food and Drug Administration.Another 11 ministerial-level officials were sentenced to life imprisonment or other severe punishments in 2010.On February 12 this year, Liu Zhijun, the Chinese Minister of Railways, was removed from his post as the Party chief of the ministry over an alleged "severe violation of discipline," becoming the latest senior official to be investigated in the country's battle against corruption.Experts believe that the downfall of high-ranking officials over corruption charges have clearly shown the determination of the CPC to enforce the Party's discipline, combat corruption and promote a clean work style.On January 10 this year, Chinese president Hu Jintao called for efforts to tackle prominent problems that have seriously harmed people's interests and sparked most public complaints during a plenary session of the CPC Central Commission for Discipline Inspection (CCDI), the Party's anti-graft body.He also pledged to combat graft and punish corrupt officials severely to win the trust of the people.Further, the CPC's drive to erase corruption yielded significant results last year.A total of 5,098 leaders at the county level or above have been punished and 804 officials were referred for prosecution last year, said Gan Yisheng, the deputy secretary of the CCDI, on January 6 this year.Despite the achievements accomplished by the CPC in its fight against corruption, Ren Jianmin believes that the anti-graft situation in China is grave and the task remain arduous.Problems concerning land acquisition and compensation, housing, food and drug safety, environmental protection, work place safety and equal access to education have been reported by the public.To handle these issues, CCDI secretary He Guoqiang urged officials on January 12 to "put people first" and "exercise the state's power for the people" when addressing problems that the public complains about.He, also a member of the Standing Committee of the CPC Central Committee Political Bureau, said that efforts should be enhanced to fight graft in fields that are most vulnerable to corruption and unhealthy practices."The two sessions have a special role to play in China's fight against corruption," said Li Chengyan, a professor at the School of Government in Peking University."Every year, the Party and the government will take effective measures after the two sessions, as a response to social concerns. The people and the media's focus on anti-graft work will push the government to solve relevant problems," he said.According to experts, however, what's more important is to put in place a sound system concerning anti-corruption, promote reform and ensure the implementation of existing measures.

VIENNA, March 28 (Xinhua) -- Stress hormone is helpful in alleviating acrophobia, a morbid fear of great heights, according to a study by Austrian scientists.They published the findings in the recent Proceedings of the National Academy of Sciences of the United States of America.Frank H. Wilhelm, professor from the Department of Clinical Psychology, Psychotherapy and Health Psychology at the University of Salzburg, Austria, carried out the first study demonstrating the clinical effectiveness of hormones released at periods of high stress in anxiety.The study found hormones and other drugs could be a good addition to behavioral treatment of several anxiety disorders.People with acrophobia have formed a so-called fear memory, which could be activated when the fear-causing stimulus occurs. They tend to react with feelings of extreme fear and anxiety to the ride in a glass elevator.Hence, scientists conducted a confrontation therapy, trying to mask this memory.A total of 40 experimental subjects had been put in a safe environment to constantly confront the fear-inducing stimulus, until they had a new reaction to the perceived threat.Observations also suggested hormones released in high stress had impact on learning and memory.Additionally, stress hormones were believed to facilitate the storage of new, anxiety-free competence and experienced confidence in the therapy. Animal studies have shown that this emotional relearning benefits from cortisol, one of the stress hormones.

来源：资阳报