济南脚趾痛风会导致脚面肿么(山东痛风石切除后骨头肿) (今日更新中)

SAN FRANCISCO, Nov. 3 (Xinhua)-- Amazon on Thursday launched an e-book lending service for owners of its Kindle devices, letting them borrow one digital book per month with no due date.Amazon said Kindle owners with an annual Prime membership can choose from thousands of books to borrow for free, including over 100 current and former New York Times Bestsellers. The online retail giant did not give an exact figure on the number of books of the new service.According to the company, readers' notes, highlights and bookmarks in borrowed books will be saved, so they will have them later if they purchase or re-borrow the book. Customers can have one book out at a time and the borrowed book should be returned through the Kindle device when they want to borrow a new one.In a press release, Amazon said it has reached agreement with publishers for a vast majority of titles for a fixed fee. But in some cases, Amazon is purchasing a title each time it is borrowed by a reader under standard wholesale terms.An Amazon Prime membership costs 79.99 U.S. dollars a year in the United States and gives members free two-day shipping and free access to the company's video streaming service containing some 13, 000 TV shows and movies.The new service is not compatible with smartphones, personal computers or tablet computers from other vendors running with Kindle apps, which makes Amazon's Kindle e-ink readers and its latest low-price tablet Kindle Fire more enticing to customers.According to Amazon, the Kindle Fire, which is priced at 199 U. S. dollars, will be released on Nov. 15.

WASHINGTON, Nov. 24 (Xinhua) -- A new study suggests that the rate of global warming from doubling of atmospheric carbon dioxide may be less than the most dire estimates of some previous studies.Authors of the study, which was funded by the National Science Foundation and published online on Thursday in the journal Science, say that global warming is real and that increases in atmospheric CO2 will have multiple serious impacts. However, the most Draconian projections of temperature increases from the doubling of CO2 are unlikely."Many previous climate sensitivity studies have looked at the past only from 1850 through today, and not fully integrated paleoclimate date, especially on a global scale," said Andreas Schmittner, an Oregon State University researcher and lead author on the Science article. "When you reconstruct sea and land surface temperatures from the peak of the last Ice Age 21,000 years ago -- which is referred to as the Last Glacial Maximum -- and compare it with climate model simulations of that period, you get a much different picture.""If these paleoclimatic constraints apply to the future, as predicted by our model, the results imply less probability of extreme climatic change than previously thought," Schmittner added.Scientists have struggled for years trying to quantify "climate sensitivity" -- which is how the Earth will respond to projected increases of atmospheric carbon dioxide. The 2007 IPCC report estimated that the air near the surface of the Earth would warm on average by two to 4.5 degrees (Celsius) with a doubling of atmospheric CO2 from preindustrial standards. The mean, or " expected value" increase in the IPCC estimates was 3.0 degrees; most climate model studies use the doubling of CO2 as a basic index.The researchers based their study on ice age land and ocean surface temperature obtained by examining ices cores, bore holes, seafloor sediments and other factors. When they first looked at the paleoclimatic data, the researchers only found very small differences in ocean temperatures then compared to now."Our study implies that we still have time to prevent that from happening, if we make a concerted effort to change course soon," said Schmittner.

BEIJING, Dec. 2 (Xinhua) -- Medical experts and leaders from the world's leading orthopaedic societies on Friday called for the improvement of health insurance programs and medical care for people in developing countries."Health care should reach the unreached," said Professor H.K.T. Raza, president of the Asia Pacific Orthopaedic Association (APOP), at the Sixth International Congress of Chinese Orthopaedic Association (COA), which is running from Thursday to Sunday in Beijing."If we really want to improve people's well-being, we have to make health care available to those who have difficulty accessing it. Although that will probably be a very difficult task, we should try and do it gradually," said Professor K.M. Chan from the Prince of Wales Hospital in Hong Kong.Statistics from the Ministry of Health show that 1.27 billion Chinese, or 95 percent of the country's population, are covered by basic medical insurance programs.However, private medical insurance accounts for less than 2 percent of the country's health care financing, while private insurance in other countries stands at an average of 20 percent."With the increasing demand for quality health care, there will be higher demand for commercial insurance. With more private health funding in the system, we can increase the quality," Prof. Chan said.Government health care expenditures should be directed toward those who can't afford health care at all, while commercial insurance should cover the needs of those who can afford to purchase it, Prof. Chan said."We need to have different approaches combined together to revamp the current health insurance structure in China," he said."If you want to raise the quality of health care, you need to have the responsibility from the government, the individuals and the insurance system," he added.While China may need to promote its commercial health insurance, in India, the situation is different. Though many medical tourists choose India as their destination for affordable care, health insurance is uncommon in the country.While patients typically pay out of their own pockets for routine care, it is estimated that over 300 million Indians out of a population of 1.2 billion still live on less than one U.S. dollar per day.

CANBERRA, Dec. 9 (Xinhua) -- Scientists from Australia's University of New England on Friday said they had discovered the remarkably fossil isa metre-long arthropod with excellent vision called anomalocaris from Emu Bay Shale of South Australia.The scientists reported their finding on the anomalocaris in thescience journal Nature this week.It is reported that anomalocaris is a fearsome ancient predator that swam in the Cambrian oceans 500 million years ago. The researchers said the presence of anomalocaris would have driven the development of protective adaptations in prey animals. Such an escalatory 'arms race' would have seen, for instance, the evolution of such adaptations in prey as shells, camouflage and burrowing into sediments. "It has been unbelievably frustrating being able to see eyes like these at fossil sites like the Burgess Shale (in the Canadian Rocky Mountains), but not have any details. It is really refreshing to have our ideas about these animals confirmed at last, " comments Simon Conway Morris, a palaeontologist at the University of Cambridge, the United Kingdom.The research team was led by paleontologist Dr John Paterson, of the University of New England. He said the most surprising discovery of anomalocaris is the huge number of tiny hardened lenses in each eyes."When you consider that a modern housefly, for example, has about 3000 lenses, it's pretty impressive that an animal half a billion years old already has remarkable vision like this," Paterson said in statement."The fact that each eye in anomalocaris would have had over 16, 000 lenses means it would have very, very good resolution."Paterson said the acute vision of Anomalocaris gave it a distinct advantage over competing predators and prey, as many Cambrian animals either had poor vision or were completely blind. Its acute vision rivals or exceeds that of most living insects and was probably comparable to predatory dragonflies today.He said their findings support the idea that compound eyes evolved very early on in arthropod evolution, before the evolution of jointed legs or hardened exoskeletons.The research team hopes they can find the more fossil remains of Cambrian creatures in the Emu Bay Shale.

BEIJING, Jan. 3 (Xinhua) -- China's building materials showed different momentum of growth in November 2011, with a slowing cement output growth and a speeding plate glass, according to latest statistics from the country's top economic planner.Cement output growth in November 2011 stood at 11.2 percent year-on-year, 6.1 percentage points lower than previous year, while plate glass production expansion reached 7.1 percent year-on-year, quickening by by 0.5 percentage points from previous year.Still, China's cement output reached 1.89 trillion tonnes in the first 11 months of last year, an increase 17.2 percent year-on-year, 1.6 percentage points faster than previous year.The output of flat glass, a sector fraught with overcapacity and duplicated construction problems, rose 17 percent year-on-year to 6.82 trillion weight boxes in the January-November period of last year, according to the NDRC.Profits of China's building materials industry surged 53.1 percent year-on-year to 243.7 billion yuan (38.68 billion U.S. dollars) in the first 11 months of 2011.To curb the overcapacity and repeated construction in the flat glass sector, the NDRC said in a statement in October 2011 that it would take move nationwide to clear up projects for construction of flat glass production facilities.

来源：资阳报