濮阳东方医院男科割包皮口碑很好濮阳东方男科看病好又便宜,濮阳东方医院看妇科病技术非常哇塞,濮阳东方医院男科治阳痿口碑非常高,濮阳东方医院看早泄技术先进,濮阳东方医院男科割包皮好不好,濮阳东方医院治阳痿口碑很好,濮阳东方医院男科预约电话

BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface.Nearly two days after it was launched, the unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 at 1:36 a.m., marking another great leap for China's space program.The success of the docking procedure makes China the third country in the world, after the United States and Russia, to master the technique, moving the country one step closer to establishing its own space station.A video grab taken from the China Central Television on Nov.3, 2011 shows the Shenzhou-8 spacecraft docking with the Tiangong-1 space lab module. Unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 early Thursday, according to the Beijing Aerospace Control Center.President Hu Jintao, who is in France for the G-20 summit, sent a congratulatory message on the success of the country's first-ever space docking."Breakthroughs in and acquisition of space docking technologies are vital to the three-phase development strategy of our manned space program," Hu said in the message.Hu said he wishes all the program participants to try all out to fulfill a complete success of the whole mission after the smooth docking.Other leaders, including Wu Bangguo, Wen Jiabao, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang, who are Standing Committee members of the Political Bureau of the Communist Party of China Central Committee, watched the mission at the Beijing Aerospace Flight Control Center.China is now equipped with the basic technology and capacity required for the construction of a space station, said Zhou Jianping, chief designer of China's manned space program."This will make it possible for China to carry out space exploration on a larger scale," he said."The capability increases China's ability to act independently in space, as well as its ability to cooperate with others," said Gregory Kulacki, senior analyst and China project manager at the global security program of the Union of Concerned Scientists, a nonprofit scientific advocacy group based in the United States."China's pursuit of an original solution to space docking, that is based on their understanding of the experience of other nations, could lead to innovations or experiences other space-faring nations could find useful," Kulacki said.The world's first space docking was achieved in 1966, when the manned U.S. spacecraft Gemini 8 docked with an unmanned Agena Target Vehicle.Forty-five years later, the maneuver remains a technological challenge. Many of mankind's 300-plus attempts have been met with difficulties or resulted in failure."To link up two vehicles traveling at 7.8 km per second in orbit, with a margin of error of no more than 20 centimeters, is like 'finding a needle in a haystack'," Zhou said.The Shenzhou-8 and Tiangong-1 will separate after flying together for 12 days. After that a second docking procedure will be conducted.Rendezvous and docking, essential to exploring space beyond Earth's orbit, create the possibility of building space stations, resupplying them, transferring astronauts and rescuing them.Without this key know-how, exploration of the moon and beyond requires carrier rockets with significant amounts of thrust. China does not currently possess rockets of this magnitude.Shenzhou-8 and Tiangong-1 both weigh about 8 metric tons, well within the delivery capacity of the Long March 2F rocket. A permanent orbiting space station is designed to be as heavy as 60 metric tons, with docking ports accommodating both manned and freight space vehicles.The interior of both the Shenzhou-8 and Tiangong-1 is an actual environment in which astronauts can live and work. After the Shenzhou-8 tests, the Tiangong-1 will remain a target orbiter for more docking procedures in 2012 by the Shenzhou-9 and -10 spacecraft, at least one of which will be manned to conduct manual docking.Although the Shenzhou-8 is unmanned, it is equipped with devices to record images and data that will help China make improvements to its spacecraft design and astronaut training.Two female astronauts are now believed to be on the active duty roster for future Shenzhou missions, said Chen Shanguang, director of the Astronaut Center of China (ACC)."We must assess both male and female astronauts to verify if human beings can live in space, as there are huge differences between men and women in spite of their common generalities," Chen said."Space exploration activities would be incomplete without the participation of female astronauts," Chen said.The Chinese spacecraft also feature collaborative space experiments under the framework of a Chinese-German science and technology cooperation.German scientists designed bio-incubators for the experiments, while their Chinese counterparts were in charge of the development of control equipment, China's manned space program spokeswoman Wu Ping said.

WASHINGTON, Oct. 13 (Xinhua) -- U.S. researchers have corrected sickle cell disease in adult laboratory mice that had been bred to have the inherited blood disorder by activating production of a special blood component, according to a study published online Thursday in the journal Science.Sickle cell disease results from an abnormality in hemoglobin, the protein found in red blood cells that is responsible for transporting oxygen throughout the body. People living with sickle cell disease have two copies of an altered gene that produces sickle hemoglobin instead of normal adult hemoglobin. Sickle hemoglobin changes shape after releasing its oxygen, causing the red blood cell to become stiff, misshapen and sticky, and slowing blood flow to tissues. This process damages organs and causes pain.The study tested a new approach to increasing the production of a third form of hemoglobin -- fetal hemoglobin. Production of fetal hemoglobin predominates before birth, but turns off thereafter as adult hemoglobin production takes over. People with sickle cell disease are unable to make normal adult hemoglobin, and instead make sickle hemoglobin starting in infancy.An elevated level of fetal hemoglobin within the red blood cell reduces the tendency of sickle hemoglobin to change the shape of red blood cells. Considerable research has shown that the drug hydroxyurea increases production of fetal hemoglobin and reduces the number of pain crises and other complications of sickle cell disease in adults and children. However, not all patients respond well to hydroxyurea, and adverse side effects are a concern.The current study explores a more targeted approach to increasing fetal hemoglobin production. It builds upon earlier studies that discovered a protein called BCL11A normally suppresses the production of fetal hemoglobin soon after birth. The researchers viewed the BCL11A protein as a target for therapy and decided to see what would happen if they blocked production of the protein.The paper details how the research team silenced the mouse gene that produces the BCL11A protein in mice with sickle cell disease. Silencing the gene turned off production of the BCL11A protein and allowed the adult mice to continue to produce fetal hemoglobin. It appears to have eliminated disease symptoms without affecting other aspects of blood production."This discovery provides an important new target for future therapies in people with sickle cell disease," said Susan Shurin, acting director of the U.S. National Heart, Lung, and Blood Institute, which co-funded the study. "More work is needed before it will be possible to test such therapies in people, but this study demonstrates that the approach works in principle."Approximately 100,000 Americans live with sickle cell disease. It is most prevalent in people of African, Hispanic, Mediterranean, and Middle Eastern descent. There is no widely available cure for sickle cell disease. Bone marrow transplants have cured some patients, but the treatment is not without risk and most patients do not have relatives who can donate compatible and healthy bone marrow to them.

NEW YORK, Oct. 14 (Xinhua) -- The iPhone 4S went on sale at Apple store on the Fifth Avenue of Manhattan in New York early Friday.An Apple store worker said people were waiting outside the store around 3 p.m. Thursday and underwent an overnight rain for an early purchase of the smart phone which started sale at 8 a.m. Friday.About 200 people were seen lining up outside the store and some of them said they would like to pay tribute to Steve Jobs, Apple's longtime CEO who died of pancreatic cancer at the age of 56 on Oct. 5."I'm a Steve's fan, iPhone 4S is the best of Steve's work. I am not going to buy iPhone 5,"Jim Bedford, who is in his 30s, said. "Maybe this is my last iPhone," he added.People left a Steve's picture, flowers and apples on the sidewalk to pay respect to Apple's co-founder. Some apples were seen inscribed such words as "Nice job" and "We will always remember you."Tom White, 50, said he had iPhone 1 and 3 and "now is the time to change a new one."The iPhone 4S is operated seven times faster than their predecessor and features an upgraded camera. Apple reported more than 1 million pre-orders for the iPhone 4S, breaking a mark set by last year's model. The phone also went on sale Friday in six other countries -- Britain,Germany,France,Australia, Canada and Japan.

BEIJING, Jan. 20 (Xinhuanet) --The air quality has worsened in the Chinese capital since Wednesday, triggering renewed discontent among residents.Without rainfall and wind to dispel pollutants, particulate matter has been accumulating in the air. Most monitoring stations measured PM 10 (particulate matter smaller than 10 micrograms) at higher than 300 micrograms a cubic meter.In southwestern Beijing's Fangshan district, the Liangxiang station recorded 516 micrograms of PM 10 a cubic meter, the highest reading of the day, according to the Beijing Municipal Environmental Monitoring Center.More than 150 micrograms a cubic meter is considered hazardous to health.Beijing has been shrouded by heavy smog off and on this winter, and the ongoing air concerns are wearing on residents particularly as they prepare to celebrate the Spring Festival holiday next week."I almost got choked by the smog when I stepped out of the office building on Wednesday," said Yang Yanli, 24, an accountant. "The smell is so terrible, as though I'm inhaling chunks of coal, that it has spoiled my holiday mood.""PM 10 intensity has been particularly high these days," said Wang Qiuxia, a researcher at the Green Beagle, a non-governmental organization based in Beijing.Unlike the smog that hit mostly the southern part of the capital on Jan 1, the smog in recent days has shrouded the entire city, according to the Beijing environmental protection bureau.Worse yet, it will linger until Saturday, when the wind will pick up and disperse it, the bureau predicted.The Chinese Center for Disease Control and Prevention suggests people stay at home to protect themselves from respiratory and heart problems triggered by heavy smog."The intensity of indoor pollutants is 30 to 60 percent lower than those outdoors during a hazy day," said Xu Dongqun, an officer with the environmental bureau. "I suggest people with respiratory problems put off traveling if the smog lingers."But many people said they had to brave the foul air to travel, especially migrants who are eager to reunite with their families during Spring Festival."No one likes to travel when the air is this bad, but do you have any choice when Spring Festival is coming?" asked Feng Xiao, a public servant at China's General Administration of Sport. The 24-year-old plans to travel by train from Beijing to her hometown in East China's Shandong province on Friday.

BEIJING, Jan. 8 (Xinhua) -- Only one in every three passengers secured train tickets on Saturday through a new online booking system or by phone, according to railway statistics released Sunday.A total of 2.112 million train tickets were sold online or by phone on Saturday, making up 36.3 percent of the total sales, the Ministry of Railways (MOR) said.Railway authorities have long been under pressure to increase capacity and improve ticketing services, as many find it extremely hard to secure a single ticket during major holidays such as the upcoming Spring Festival.The MOR set up an online ticketing system this year in a bid to ease passengers' frustrations in purchasing tickets.However, website glitches have added to the woes of travelers, especially migrant workers, who make up the biggest group in the Spring Festival travel rush.The rush, dubbed the world's largest seasonal migration, started Sunday and will continue for over 40 days.China's railways are expected to carry 235 million passengers over the next 40 days, up 6.1 percent year-on-year, the MOR said last week.The Spring Festival, or the Chinese Lunar New Year, falls on Jan. 23.