濮阳东方男科医院评价非常高濮阳东方男科医院割包皮贵不贵,濮阳东方医院口碑评价高,濮阳东方医院治疗阳痿很正规,濮阳市东方医院技术值得信任,濮阳东方妇科医院在哪,濮阳东方医院看妇科非常专业,濮阳东方医院咨询专家热线

BEIJING, May 20 (Xinhuanet) -- Scientists have discovered a Jupiter-sized exoplanet that is completely unbound from a host star, according the scientific journal "Nature" published Thursday.The research was conducted by astrophysicists from Osaka University in Japan.Using the technique called "gravitational microlensing", scientists turned their telescopes towards the centre of the Milky Way and detected this "lonely planet" moving in a extremely large orbit, which suggested it does not connect to any solar system.Then they estimated the total number of such wondering planets could be as many as 400 billion, based on the detection efficiency. This number far outnumbers the main-sequence stars such as our Sun."This is an amazing result, and if it is right, the implications for planet formation are profound," says astronomer Debra Fischer at Yale University in New Haven, Connecticut.And scientist began to consider the possibility that liquid water could exist on this kind of unbound planets. "That might be an attractive possibility for life," said David Stevenson, a planetary scientist at the California Institute of Technology.

BEIJING, Jan. 26 (Xinhua) -- Chinese Premier Wen Jiabao Wednesday invited more foreign talents to continue their careers or start businesses in China, pledging better conditions for them.During a seminar with more than 20 veteran foreign experts at the Great Hall of the People a week before the Chinese New Year, Wen thanked the foreign friends for their contributions to China's achievements in 2010.Wen said 2011 is a new starting point for China's modernization, as the country implements its 12th five-year plan for economic and social development."China's development is much more associated with the world and the supply of talents than before," Wen said, adding that China will adopt a more open policy to attract overseas experts.Last year, foreign experts made more than 300,000 visits to China, according to Ji Yunshi, general director of the State Administration of Foreign Experts Affairs.

XI'AN, March 31 (Xinhua) -- Archeologists in the northwestern Shaanxi Province confirmed Thursday, after weeks of lab work, that the bones they found in a bronze cooking vessel from a 2,400-year-old tomb belonged to a male dog under a year old.Altogether 37 bones were found in the cooking vessel, which was unearthed in November 2010 from a tomb near the Xianyang International Airport in the suburbs of Xi'an, said Liu Daiyun, a researcher with the Shaanxi Provincial Archeological Institute."When we opened the 20-cm tall cooking vessel, we were shocked to find bones and soup inside," said Liu.The bones and soup had all turned greenish, similar in color to the bronze container, he said.Cooking vessels were a typical offering Chinese once presented to their deceased ancestors, said Liu.The custom became prevalent around the Warring States Period (475 - 221 BC), the time Liu and his colleagues believed this dog stew was offered.Hu Songmei, a researcher who did most of the lab work to identify the bones, said they found the bones were "strikingly similar" to four complete sets of canine skeletons preserved at the institute's lab.The newly found bones, however, were smaller, indicating the dog was just a pup, said Hu.Hu said further lab work was needed to tell the exact species of the canine. "Dogs were domesticated by humans at least 10,000 years ago, but the early dog species that evolved from wild wolves could be very different from today's pet dogs."Besides the dog bones, experts also found a wine-like liquid in another airtight kitchen ware from the same tomb. "Whoever the tomb owner was, he must have loved liquor and meat, so his sons wished he could still enjoy the feast in his grave."

BAODING, Hebei, Feb. 3 (Xinhua) -- Chinese President Hu Jintao Thursday called for efforts to promote welfare for senior citizens and vowed to improve the country's health care system to make medical services more affordable.Hu made the call during a three-day inspection tour in Baoding City of northern province of Hebei starting on Tuesday, during which he visited orphans, talked to senior citizens and extended festival greetings to local residents.At a nursing center in Shunping County of Baoding City, Hu offered New Year greetings to senior citizens, orphans and staff of the center.Hu wished the senior citizens good health and a long life, encouraged orphans to study hard, and thanked the staff for the care given to the aged.The Communist Party of China (CPC) and the government will make strenuous efforts to improve the welfare of seniors and make sure their difficulties are solved and they have access to better services, Hu said.When visiting Zhao Helou, a Baoding retiree who has been hospitalized several times and living in difficult circumstances, Hu promised assistance from the Party and the government to help Zhao tide over her problems.The health care and medical insurance system would be improved in the future to tackle people's difficulties in medical care, Hu promised.During his visit to Baoding, Hu also inspected drought conditions at wheat fields, joined villagers during New Year celebrations and extended Spring Festival greetings to passengers, station workers and volunteers.Hu, who is also general secretary of the CPC Central Committee, was briefed on the work of Hebei's provincial committee of the CPC and the provincial government during his tour.