玉溪做无痛人流那儿好(玉溪人流得花多少钱) (今日更新中)

BEIJING, Oct. 11 (Xinhuanet) -- Scientists have discovered that blind optimism is related to brain's frontal lobes which are associated with processing errors, according to a British study published Monday in the journal Nature Neuroscience.Scientists at the University College of London scanned brains of volunteers who were asked to estimate their personal likelihood of involving in negative events, like a divorce or cancer,  before and after given the average probability of these events occurring.They found that the volunteers who estimated lower probability (or the more optimistic ones) than the given one raised their estimates a little bit later while those estimated higher probability altered their estimates much more.Through the brain scanner, scientists saw there was less activity in the volunteers' frontal regions when the information given was worse than expected while more activity when the information was better than expected. It suggested that the more optimistic people neglected the negative predictions."The more optimistic we are, the less likely we are to be influenced by negative information about the future," said Dr. Tali Sharot, lead author of the study. He added being optimistic clearly had some benefits, "but it can also mean that we are less likely to take precautionary action, such as practising safe sex or saving for retirement. So why don't we learn from cautionary information?"

ZHENGZHOU, Oct. 21 (Xinhua) -- A leading Chinese producer for quick-frozen snacks Thursday apologized for the production and sale of bacteria-contaminated dumplings and said that a recall was underway.A spokeswoman from Zhengzhou Sinian Food Co., Ltd. said they had confirmed the contamination of staphylococcus aureus, or golden staph, in its quick-frozen seafood and pork-stuffed dumplings.The company had started the recall and destruction of the contaminated products, said Lin Xiaohong, a marketing executive of the company, adding that an investigation into the source of the contamination was underway.The statement came after authorities in Beijing announced they had detected golden staph from one batch of dumpling products by the Henan-based company. The bacteria can cause various diseases, including pneumonia and sepsis, and is strictly banned in food procession.

JIUQUAN, Oct. 26 (Xinhua) -- China will launch the spacecraft Shenzhou-8 in early November at the Jiuquan Satellite Launch Center in northwest deseart area.The unmanned spacecraft is expected to perform China's first space docking with Tiangong-1, or Heavenly Palace-1, a space lab module that was launched in September from the same launch center.The spacecraft and its carrier rocket, an upgraded Long March-2F, were transferred on Wednesday morning on a 20-meter-wide railway to the launch pad.The launch pad is 1,500 meters away from the assembling and testing center. It took nearly two hours to complete the transfer.Technicians completed testing on the assembling of Shenzhou-8 and the rocket after they were delivered to the launch center at the end of August, said Lu Jinrong, the launch center's chief engineer.In the next few days, the launch center will continue testing the spacecraft and the rocket, and inject propellent before the final launch in early November, Lu said.The assembling, testing and transferring of the spacecraft and rocket were all conducted while they were vertical.Shenzhou-8 is capable of docking with the spacecraft Tiangong-1 in both manual and automatic modes.The Tiangong-1 space lab module is functioning smoothly in the orbit, and all equipment and experiments are going well, according to Lu. The module is ready for the docking task, Lu said.

WASHINGTON, Nov. 16 (Xinhua) -- Data from NASA's Galileo spacecraft have provided scientists evidence of what appears to be a body of liquid water, equal in volume to the North American Great Lakes, beneath the icy surface of Jupiter's moon, Europa, the U.S. space agency announced Wednesday.The data suggest there is significant exchange between Europa's icy shell and the ocean beneath. This information could bolster arguments that Europa's global subsurface ocean represents a potential habitat for life elsewhere in our solar system. The findings will be published Thursday in the scientific journal Nature.Europa, which is slightly smaller than Earth's moon, is believed to have a large ocean of salty water deep beneath its frozen crust. Galileo spacecraft, launched by the space shuttle Atlantis in 1989, studied Jupiter, which is the most massive planet in the solar system, and some of its many moons.Pictures of it sent back by Galileo point to a tortured surface of cracks and jumbled ice. Seeking to understand how such weird topography evolved in a place with such dim sunlight, scientists believe that the answer lies in similar processes on Earth.Their model suggests that Europa's ice shell is about 10 kilometers thick and within it are giant pockets of water, lying at depths as shallow as three kilometers. Warm water from these sub-surface lakes wells up in plumes, causing the ice to become brittle, crack and then collapse. The ice turnover would be a plus for the prospects for life, as it would transfer energy and nutrients between the sub-glacial lake and the surface."One opinion in the scientific community has been if the ice shell is thick, that's bad for biology. That might mean the surface isn't communicating with the underlying ocean," said Britney Schmidt, lead author of the paper and postdoctoral fellow at the Institute for Geophysics, University of Texas at Austin. " Now, we see evidence that it's a thick ice shell that can mix vigorously and new evidence for giant shallow lakes. That could make Europa and its ocean more habitable.""The data opens up some compelling possibilities," said Mary Voytek, director of NASA's Astrobiology Program. "However, scientists worldwide will want to take a close look at this analysis and review the data before we can fully appreciate the implication of these results."

BEIJING, Dec. 19 (Xinhua) -- China will launch its first-ever high-resolution geological mapping satellite for civil purposes next January, according to official sources.The Ziyuan III satellite will be launched aboard a Long March 4B carrier rocket from the Taiyuan Satellite Launch Center in northern China's Shanxi province, according to a conference held on Monday for the directors of surveying, mapping and geoinformation administrations across the nation.The Ziyuan III's surveying covers the entire area between 84 degrees north latitude and 84 degrees south latitude.The satellite will be used to conduct geological mapping, carry out surveys on land resources, help with natural disaster-reduction and prevention, and lend assistance to farming, water conservation, urban planning and other sectors.The Ziyuan III satellite project was inaugurated on March 2008, and also includes gravity satellites, radar satellites and follow-up satellites for the Ziyuan III, so as to obtain geoinformation under all kinds of meteorological conditions. 

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