中山喝洒大便带血是怎么回事(中山看内痔最好的医院) (今日更新中)

You can think of NASA's Discovery program as a sort of outer-space American Idol: every few years the agency invites scientists to propose unmanned planetary missions. The projects have to address some sort of fundamental science question, and (this is the tough part) they have to be relatively cheap to pull off — say, half a billion dollars or so. Then the proposals go through a grueling competition before judges who aren't as nasty as Simon Cowell but who are every bit as tough. The one left standing at the end gets the equivalent of a recording contract: NASA supplies the funding and the launch vehicle, and away the winner goes — to orbit Mercury, as the Messenger spacecraft is doing right now; or to rendezvous with a couple of asteroids, as the Dawn mission will start doing this July; or to smash into a comet on purpose, a feat achieved by Deep Impact in 2005, a mission not to be confused with the movie of the same name. Now it's time for the next contenders. NASA has just announced that the first round of the latest Discovery competition is over, with three entries out of 28 moving on to the finals. They are, in increasing distance from Earth: the Geophysical Monitoring Station (GEMS) lander, which would use seismometers to study the interior of Mars; the Comet Hopper, which would do just that, leaping from place to place across the surface of Comet 46P/Wirtanen to see how different parts of the tumbling body react to heating by the sun; and the Titan Mare Explorer (TiME), which would plop into a sea of liquid hydrocarbons on Saturn's moon Titan — the first oceangoing vessel ever to set sail on another world. If you had to come up with a theme that ties all three missions together, it would be "origins." The Titan explorer, for example, will be studying a place that — in a crude way, at least — resembles the early planet Earth at a time when life arose here. Titan, with a thick atmosphere and a bizarro-world form of weather featuring toxic winds and hydrocarbon rain, is home to a mix of complex chemistry, complete with organic molecules. The oceans provide a medium in which the molecules can move around and interact with each other. It's even conceivable, though clearly a long shot, that some form of microscopic life already exists on this frigid moon. The Mars lander, by contrast, would visit a place where the seas — plain water in this case — vanished long ago. But the mission of GEMS goes far deeper than that. By analyzing Marsquakes on the Red Planet, GEMS will try to get a handle on what the interior of Mars is like. Scientists don't currently know whether the planet's core is liquid, like Earth's, or solid, or some mushy consistency in between. It all depends on how efficiently Mars has cooled since it formed 4.5 billion years ago, and that depends in turn on the planet's internal structure. "That's the mission," says Bruce Banerdt, of NASA's Jet Propulsion Laboratory, the lead scientist for GEMS. "We want to understand how Mars was built." Along with sensitive seismographic equipment, GEMS will drill down about 20 ft. (6 m) with a thermometer-equipped probe, trying to figure out how quickly the temperature rises with depth. "That will let us extrapolate all the way down to the center," Banerdt says, "which will tell us how fast Mars is cooling."

MOSCOW, April 22 (Xinhua) -- The Russian Space Forces has re-established contact with a military satellite, Geo-IK-2, which went missing in February, local media reported Friday.According to a spokesman from the Defense Ministry, Interfax news agency said the Space Forces had already received telemetric information from the satellite and collection and analysis of the data were currently underway.After studying the information, the Defense Ministry would make a decision regarding the further use of the satellite, the spokesman said.A Rokot light-class carrier rocket carrying with the Geo-IK-2 satellite blasted off Feb. 1 from Russia's Plesetsk launching site, but placed the satellite in an incorrect orbit. After the launch, the Defense Ministry announced it had lost contact with the Geo-IK-2 and later abandoned the satellite.The Russian Space Forces then grounded launches of all Rokot light-class carrier rockets until the completion of an investigation into the failed launch.

SYDNEY, Jan. 25 (Xinhua) -- Huawei Technologies, on Monday asked a U.S. District Court to prevent Motorola from illegally transferring Huawei's intellectual property (IP) to Nokia Siemens Networks ("NSN"), officials of Huawei told Xinhua in Sydney, Australia on Tuesday.As a leading player in providing next generation telecommunications network solutions, Huawei took this action as NSN seeks to complete its 1.2 billion U.S. dollars acquisition of Motorola's wireless network business.Since 2000, Huawei and Motorola have had a cooperative relationship in the radio access network and core network businesses, where Motorola has resold Huawei wireless network products to customers under the Motorola name. During this period, Motorola was provided with products and confidential Huawei IP developed by Huawei's team of more than 10,000 engineers.Since the July 2010 announcement by NSN of its purchase of Motorola's wireless network business, Huawei has tried to ensure that Motorola does not transfer this confidential information to NSN.According to officials of Huawei, Motorola's failure to adopt measures sufficient to ensure that Huawei's proprietary information remains confidential has compelled the company to file for the appropriate legal protection of its rights.The officials said Huawei respects the rights of intellectual property holders and is equally committed to the protection of its own innovations and intellectual property.Nearly half of Huawei's 100,000 plus employees are engaged in research and development and Huawei allocates an average of 10 percent of all revenues to R&D annually. By the end of 2010, Huawei had applied for 49,040 essential patents on a global basis.

BEIJING, Feb. 14 (Xinhua) -- "Dear Premier Wen, I'd like to tell you the good news first. The problem I brought up at the seminar last year has been solved in Beijing," wrote 34-year-old, wheelchair-bound Li Nan to Chinese Premier Wen Jiabao on Jan. 20 this year.The problem Li referred to was the high prices of one-off hygiene products that had plagued people with work-related spinal cord injuries for a long time.On Jan. 31, 2010, Wen talked with a group of ordinary people in Chaoyang District in Beijing to get their opinions on the draft of a government work report that will be submitted to the national legislature in March.Wen asked Li to be the first to voice her views at the seminar. Li said that patients with spinal cord injuries had to spend about 2,000 yuan (303 U.S. dollars) a month on one-off hygiene products because of their incontinence."My injury allowance is roughly 2,000 yuan a month. I have to live on my parents' pension," she said.She suggested giving more attention to the employment and mental health of the disabled, and also for some revisions on the catalogue of drug and auxiliary devices for those disabled by work-related injuries. She also proposed more subsidies for these people.Responding to the suggestions, Wen said, "Li Nan's case is far from an individual one. The disabled are a very large group of people in China who need more attention... We need to study, revise and renew the government regulations on work-related injury insurance."Wen also encouraged Li to be optimistic in face of ordeals.Li, who graduated from Beijing Youth Politics College in 1997, was once a prize-winning amateur dancer. However, she became confined to a wheelchair after a traffic accident in 2003.On March 5 last year, Li beamed with pride as she watched TV. Premier Wen was delivering the government work report at the annual session of the national legislature.Wen pledged to "work harder to build the social security and social services system for people with disabilities." The premier also promised that "Workers' compensation will be extended to all of the 1.3 million workers injured in previous jobs who are not receiving benefits.""I am thrilled to see that my advice on improving social security for the disabled was included in the government work report," Li said in her letter, which summarized the changes she experienced in the past year because of the improved social security system.The Beijing Municipal Human Resources and Social Security Bureau announced last year that people would be reimbursed for one-off diapers and urine bags under the municipal work-related injury insurance program beginning June 2010."The Beijing policy has relieved our heavy economic burdens and ensured the quality of our life," Li wrote.Li, however, said that though some places has begun to give living and nursing subsidies for the disabled, the policy needs to be extended to other parts of the country.After reading the letter on Jan. 31, Wen Jiabao instructed relevant organs in the State Council, or Cabinet, and the Beijing municipal government "to conduct research and set down policies to better protect and aid people with serious disabilities, and to help them solve their difficulties and improve their quality of life."

BEIJING, May 21 (Xinhua) -- China's State Food and Drug Administration (SFDA) issued a circular on Friday banning the use of Nimesulide, an anti-inflammatory drug, for children under the age of 12, considering potential side-effects such as liver and kidney damage.Nimesulide is a non-steroidal anti-inflammatory drug that first became available in Italy in 1985. It is now used in more than 50 countries and regions.The drug entered Chinese markets in 1997.According to the SFDA, while common adverse reactions to the drug include vomiting and stomache, domestic and overseas statistics indicate that more severe issues are related to the drug, such as blood coagulation disorders, decreased white blood cells and damage to liver and kidney.Previously, the SFDA only prevented the use of the drug among children one year old or younger.Also on Friday, the SFDA ordered the suspension of the production, sales and use of Duxil (almitrine and raubasine compound) due to its "unobvious" efficacy.According to the SFDA, clinical research found "little" evidence proving the drug effectively improves the cognitive ability for patients suffering vascular cognitive impairment.The drug was supposed to treat symptoms related to cognition and sensory nerve damage.The moves came after a two-month nationwide campaign was launched earlier this month to probe the quality of essential drugs and ensure drug safety.Official figures show that China's National Center for Adverse Drug Reaction Monitoring received 692,904 reports of adverse reactions in 2010, up 8.4 percent compared with those in 2009.Among the total, 109,991 cases involved new or severe adverse reactions, a year-on-year increase of 16.2 percent.

来源：资阳报