南昌精神心理咨询医院哪家医院好(南昌临淄区精神病医院哪里好) (今日更新中)

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. 2 (Xinhua) -- From dumplings in the north and rice cakes in the south, people across China Wednesday overloaded their tables with holiday foods, cheering for the Spring Festival family reunion and praying for a better life in the coming Year of Rabbit.In a remote village in Guizhou Province, villagers were sharing millet cakes and preserved pork as sunshine dispelled cold and sleet, which have plagued China's southwest for a month."This year's Spring Festival is especially cheerful, since our dream of a new home has come true," said villager Zhang Jiuyun.Zhang's home was severely damaged in the snow and sleet disaster, but with the help of local villagers and funds from the government, Zhang built a larger house without spending much money.The Spring Festival is also an important occasion for migrant workers to enjoy family reunions after toiling for higher incomes in wealthy coastal provinces for a year."I've brought back red wine and cookies imported from Italy as gifts for my parents," said Ding Zhenghe, a Shenzhen-based factory owner who has worked his way up from a migrant worker.But Ding said, after years in the modern city, he still yearns for the the food cooked by his mother in the rural home.The Spring Festival, which falls on Thursday, also marks the start of the Year of the Rabbit. It is a time for family dinners, gift giving and fireworks.Nangkun Tashi, a villager in the earthquake-hit Yushu, northwest China's Qinghai Province, celebrated the first Lunar New Year after the disaster with traditional Tibetan food, such as mutton and butter tea.A 7.1-magnitude earthquake jolted Yushu in April 2010, killing about 2,200 people and leaving Tashi's village in ruins.Tashi's family narrowly survived the quake, and have recently moved into a new home, which was provided by the local government two months before.In Zhouqu County, Gansu Province, 990 tons of grains have been delivered to the 473 survivors, who now lived in temporary housing after a massive landslide leveled the county, leaving over 1,500 people dead in August."We are able to hold a celebration, even though we've lost everything in the landslide," said local resident Yao Shelin."We've received flour, cooking oil, and even the wok is a donation," said Yao.

SINGAPORE, April 21 (Xinhua) -- Singapore's first locally-built satellite has been officially launched from a space center in India after a four-year delay, Singapore media reported on Thursday.The 105 kg fridge-size X-Sat was one of three riding on Isro's Polar Satellite Launch Vehicle (PSLV-C16) from the Satish Dhawan Space Center in India on Wednesday. It will be used to take photographs to measure soil erosion and environmental changes on earth, local daily Straits Times said.The launch at 12:42 p.m. on Wednesday was the 18th successful lift-off since the maiden flight of PSLV in 1994.The satellite was designed and built by Singapore's Nanyang Technological University and Singapore's defense research body DSO National Laboratories.Now in orbit, the satellite is establishing communication contact with the ground control in Nanyang Technological University, a process that is likely to take up to a week.The launch capped more than nine years of hard work by scientists and engineers. It also makes Singapore one of the first countries in Southeast Asia to have its own satellite in space. Previous satellite launched by Singapore involved construction efforts by foreign companies.

CANBERRA, April 1 (Xinhua) -- People who share bongs to smoke marijuana may be at risk of contracting pulmonary tuberculosis (TB) , Australian medical researchers warned on Friday.Dr Michael Hayes and Dr Susan Miles from Calvary Mater Hospital in Newcastle of Australia conducted the research, which centered on three recent TB cases in New South Wales.TB is caused by the bacteria Mycobacterium tuberculosis, which can be contracted by breathing in air droplets coughed from an infected person.The research suggested a link between active TB cases and shared bongs, which is the water pipes commonly used in marijuana smoking.According to Dr Hayes, the three young patients were regular or heavy cannabis users, and more recently there has been a fourth person in the region with similar characteristics had been diagnosed with TB.He said although the three initial cases were not related, there was concern about the high rate of positive contacts among people who had shared bongs with the active cases."Smoking marijuana is a cough-provoking activity and it is usually conducted in a confined environment that is conducive to the spread of the organism," he told Australia Associated Press.

BEIJING, Feb. 18 (Xinhua) -- In the next five years, China will further expand the coverage of its basic medical insurance system and ease the cost of medical services, Health Minister Chen Zhu said Friday.Chen made the remarks while addressing a meeting for the reform of the health care system.The medical expenditure that shouldered by individuals had been cut to 38.2 percent of China's annual overall spending on medical services in 2009, down from 60 percent in 2001, thanks to increasing government funding support for the measure, said Chen.He said the country is striving to bring down the ratio to below 30 percent by the end of the country's 12th five-year plan period (2011-2015).China is steadily pushing towards the implementation of a basic medicine system which aims to ensure affordable access to essential drugs for patients, Chen said.In the areas already covered by basic medicine system, the average price of basic medicine has dropped by around 30 percent, Chen added.He said that the reform of government-run hospitals, which is key to ensure that the masses gain universal access to basic health care services, must be undertaken.In 2011, more measures will be made to restructure the distribution of public hospitals, reform government-run traditional Chinese medical institutions and support building and developing hospitals in county-level regions, Chen said.

来源：资阳报