临沧治疗霉菌阴道炎方法临沧治疗妇科到那家医院,临沧阴部出血是怎么原因,临沧阴虱怎么治疗好的快,临沧性生活以后下面出血,临沧看阴道炎哪家好,临沧同房是出血是怎么回事,临沧阴道外有肉

WASHINGTON, Aug. 17 (Xinhua) -- Latest research shows that the Moon could be younger than previous estimates. The findings were published online Wednesday in the Nature journal.The prevailing theory of the Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth. The energy of this impact was sufficiently high that the Moon formed from melted material that was ejected into space. As the Moon cooled, this magma solidified into different mineral components. Analysis of lunar rock samples thought to have been derived from the original magma has given scientists a new estimate of the Moon's age.According to this theory for lunar formation, a rock type called ferroan anorthosite, or FAN, is the oldest of the Moon's crustal rocks, but scientists have had difficulty dating FAN samples. The research team used newly refined techniques to determine the age of a sample of FAN from the lunar rock that was brought back to Earth by the Apollo 16 mission in 1972.The team analyzed the isotopes of the elements lead and neodymium to place the FAN sample's age at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range as old as the age of the solar system at 4. 568 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from western Australia -- suggesting that the oldest crusts on both Earth and Moon formed at approximately the same time, and that this time dates from shortly after the giant impact.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which the sample crystallized."The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates, or that we need to change our entire understanding of the Moon's geochemical history," Carnegie Institute of Science's geochemist and study author Richard Carlson said.

BEIJING, Aug. 30 (Xinhuanet) -- The United Nations is warning authorities to be on high alert of bird flu as the virus appears to be returning.The UN Food and Agriculture Organization said in a statement Monday a mutant strain is spreading across parts of Asia, and there could be a spill-over to humans.However, it said at this stage, there's no need for any alarm.A mutant strain of H5N1, which can apparently sidestep defenses of existing vaccines, is spreading in China and Vietnam, it said.It said the variant of the virus appears able to side step Vaccines.The UN is concerned the new form of the virus could spread to Cambodia, Thailand and Malaysia, as well as the Korean Peninsula and Japan."Wild birds may introduce the virus, but people's actions in poultry production and marketing spread it," said FAO's chief veterinary office Juan Lubroth in urging greater preparedness and surveillance, according to media reports.Outbreaks of the virus peaked in 2006 before it was eradicated from most countries.

Beijing, Sept. 13 (Xinhuanet) -- A fear of taking antidepressants often results in people's reluctance of going to see the doctor when they are suffering from depression, a study find.The finding was published Monday in the U.S. journal Annals of Family Medicine.The researchers from the University of California investigated 1,054 adults on why they wouldn't tell the doctors about their depression symptoms, as well as any possible mental disorder.Among the participants, 43 percent admitted that they had been reluctant to tell the doctor about their depression symptoms.Their top concern was the possibility of being prescribed an antidepressant -- a worry voiced by 23 percent of the whole study group.Another 16 percent thought dealing with "emotional issues" is not the doctor's job. And a similar percentage worried that the diagnosis of depression may leave a negative record on their medical records.The study would be helpful for looking into the reasons that patients harbor the attitudes that they do, said Dr. Hellerstein of the New York State Psychiatric Institute and Columbia University Medical Center in New York.

COPENHAGEN, June 7 (Xinhua) -- The outbreak of infections caused by E. coli bacteria may be over in Denmark as no new cases have been reported here since Friday.According to Denmark's National Serum Institute (NSI), there are 18 confirmed cases of severe intestinal infection caused by exposure to the bacteria as of Monday. No new infections have been reported since Friday, it added.The confirmed cases are said to consist of 10 men and 8 women aged between 23 and 81 years of age. Seven show symptoms of kidney failure which is associated with advanced stages of the infection.All but one are believed to have contracted the infection while traveling in northern Germany, where the outbreak started, the NSI said.So far, the E. coli infection has claimed 21 lives in Germany, which reports over 2,100 confirmed and suspected cases. It has also spread to 12 countries according to the World Health Organization (WHO)."This particular strain of E.coli has been identified in some people sporadically in the past, but it has not been known to have been associated with outbreaks in the past," a WHO spokesperson said Friday, adding it was a "very, very rare strain."Health authorities in Germany now suspect bean sprouts as the source of contamination in this outbreak, although this is yet to be confirmed.Dr Kaare Moelbak, an epidemiologist at NSI told Danish media Sunday that bean sprouts were a "very likely" source of contamination.Cucumbers were initially suspected and Denmark's food authority continues to warn against eating raw tomato, cucumber or lettuce from Germany until the source is established.Children are normally most vulnerable to E. coli infection but most of those infected in this outbreak are above the age of 20 years, Moelbak told Xinhua last week.He said children are likely less affected by this outbreak as they usually eat fewer salads than adults.In Germany, it is mostly women who have been affected by the infection. Moelbak explained the skew in infections saying women tend to choose to eat more vegetables than men, in comments made to Danish media Thursday.

CANBERRA, Aug. 29 (Xinhua) -- Alzheimer Australia on Monday released a GPS device for people with dementia, in a move to give them greater independence, while reducing the burden of missing person searches for police.The technology has been using in New South Wales of Australia, and is now available for people in state Victoria.The Safe2Walk locater can be worn by people with dementia on a lanyard around the neck or clipped onto a belt. Families can log- on to the connected website and see where the person is.The device updates the person's location every 60 seconds, reducing stress for carers so they know when a person with dementia might be wandering.It also works as a mobile phone, letting the person wearing the device to make instant calls to family.According to Alzheimer's Australia's research manager Jason Burton, the device aimed to stop vulnerable people getting lost, with research showing about 40 percent of people with dementia went missing at least once."In 99 percent of cases the carer has gone to pick them up, but there was one case where they couldn't and the police were able to contact us to get the exact GPS location of this person to rescue them," Burton told Herald Sun.A Victoria Police spokeswoman said while it could not endorse a specific product, if the device could alert carers when a person with dementia first became disorientated, the response could help avoid a large-scale police search.Mina Sapounakis, who's father has worn the Safe2Walk device, said it has given her family a sense of calm."We could go grocery shopping without stressing and rushing back home quickly to check on Dad," she said."There were a few times he had gone wandering and we were able to easily find him without having to call the police."The Safe2Walk GPS costs under 15 U.S. dollars a week for rent.