武清区龙济医院治疗早泄手术如何(阳痿治疗天津龙济医院男科) (今日更新中)

WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said.The second Gravity Recovery And Interior Laboratory, or GRAIL-B, reached its lunar orbit at 5:43 p.m. EST (2243 GMT) on Sunday, according to the National Aeronautics and Space Administration (NASA).The GRAIL-A started orbiting the moon at 5 p.m. (2200 GMT) Saturday.The insertion maneuvers placed the spacecraft into a near-polar, elliptical orbit with an orbital period of approximately 11.5 hours, NASA said.Over the coming weeks, the GRAIL team will execute a series of burns with each spacecraft to reduce their orbital period to just under two hours. At the start of the science phase in March 2012, the twin GRAILs will be in a near-polar, near-circular orbit with an altitude of about 55 km."NASA greets the new year with a new mission of exploration," Administrator Charles Bolden said in a statement. "The twin GRAIL spacecraft will vastly expand our knowledge of our moon and the evolution of our own planet."During GRAIL's science mission, the two probes will transmit radio signals precisely defining the distance between them. As they fly over areas of greater and lesser gravity caused by visible features such as mountains, craters and masses hidden beneath the lunar surface, the distance between the twin spacecraft will change slightly.Scientists will translate this information into a high-resolution map of the moon's gravitational field.The data will allow scientists to understand what goes on below the lunar surface and increase knowledge of how Earth and its rocky neighbors in the inner solar system developed into the diverse worlds we see today.

COPENHAGEN, Nov. 3 (Xinhua) -- The launch of Shenzhou-8 and the successful docking with Tiangong-1 in outer space represented a milestone in both Chinese and international space programs, Danish space scientist and media said Thursday.Michael Linden-Voernle, an astrophysicist at the Tycho Brahe Planetarium in Copenhagen, said new possibilities have opened for both Chinese and international space programs with high expectations."The recent launch of the Tiangong-1 module and now the successful docking with the Shenzhou-8 spacecraft is a very important step - a milestone for the Chinese space program in order to realize the goal of having a permanent presence in space. That means a large space station so this is really an important step, a major milestone," Linden-Voernle told Xinhua in an interview here on Thursday.Besides, a number of Danish news media reported the event, hailing it as a "historic and successful docking." The influential daily Politiken placed a two-minute's video for the successful coupling on its website and showed scenes from the Shenzhou-8 docking with Tiangong-1 together with a short commentary."Tonight two Chinese spacecraft made the historic and successful docking above the atmosphere for the first time ever. China had been the third country in the world after the United States and Russia to master the technique of docking in space. China has laid the foundation for its dominance in space," Politiken said.Jyllands-Posten, one of the bestselling newspapers in Denmark, carried a report with a brief description of China's first space docking under the headline "China closer to its own space station.""As the third country in the world, China has docked two spacecraft together perfectly in space," said Jyllands-Posten.China's unmanned spacecraft Shenzhou-8 and its space lab module Tiangong-1 rendezvoused early Thursday, successfully completing the country's first-ever space docking.

BEIJING, Nov. 28 (Xinhuanet) -- A majority of the emergency hospitalizations for bad events related to medication use in old U.S. adults stem from four common medications, according to a new study in the New England Journal of Medicine Monday.The study was conducted by researchers from the Centers for Disease Control and Prevention of U.S.There are nearly 100,000 emergency hospitalizations for adverse drug events in older Americans, says researcher Daniel S. Budnitz, MD, MPH, director of the CDC's Medication Safety Program.And the four types of medication -- two for diabetes and two blood-thinning agents -- account for two-thirds of those drug-related emergency hospitalizations. They most often cited: warfarin (Coumadin, Jantoven); insulin; antiplatelet drugs such as aspirin and clopidogrel (Plavix); oral hypoglycemic agents."Both blood thinners and diabetes medicines are critical drugs that can be lifesaving," Budnitz says.However, he says that ''these are medications that you do need to pay attention to," being sure the dose and timing are correct, among other measures.

BEIJING, Nov. 9 (Xinhua) -- A Chinese Mars orbiter named Yinghuo-1 was successfully launched on Wednesday morning from Russian-leased Baikonur cosmodrome in Kazakhstan, China's authorities said. The orbiter was launched by a Zenit-2 booster rocket at 4:16 a.m. Beijing time Wednesday (2016 GMT Tuesday), hitching a ride on Russia's Phobos-Grunt (Phobos-Soil) craft, an unmanned probe on Phobos, a moon of Mars, said China's State Administration for Sciences, Technology, and Industry for National Defence.

BEIJING, Oct. 11 (Xinhuanet) -- For women, chocolate consumption needs to be high, which can lower stroke risk, researchers from the Karolinska Institute, Sweden, reported in the Journal of the American College of Cardiology. The consumption of chocolate has been demonstrated to reduce diastolic and systolic blood pressure in randomized, short-term trials. Chocolate has also been shown to improve endothelial and platelet function, and to improve insulin resistance.Susanna Larsson Ph.D. and the team conducted the research on the Swedish Mammography Cohort's 33,372 adult females aged from 49 to 83 years without history of stroke, coronary heart disease, stroke, or diabetes.They found those who ate at least two chocolate bars each week appeared to have a 20 percent lower risk of stroke, compared to those of the same age and weight who rarely or never ate chocolate. But, they found, it was only those in the highest quartile of chocolate consumption who had a significant drop in stroke risk.The researchers explained that cocoa has flavonoids - powerful antioxidants that can suppress LDL, low-density lipoprotein, that can cause stroke and other cardiovascular diseases.

来源：资阳报