山东治疗羊癫疯病首选是哪家(江苏成人枕叶癫痫的病因) (今日更新中)

BEIJING, Sept. 30 (Xinhuanet) -- Tobacco companies concealed the knowledge of radioactive substance in cigarettes from public for over four decades, a new study revealed.The revelation was made by a research team from the University of California, Los Angeles, published on Thursday in the online edition of the U.S. medical journal Nicotine and Tobacco Research.The researchers analyzed 27 timeworn documents and discovered that tobacco companies had knew the existence of polonium-210, a hazardous radioactive substance, in the tobacco since 1959.The companies studied polonium-210 throughout the 1960s, and concealed their findings about the carcinogenic potential of the radioactive substance.Hrayr Karagueuzian, the study's lead author, said the tobacco companies' deception surprised him.According to the revelation, the companies had knew the "cancerous growths" in the lungs of smokers, and even calculated how much radiation a regular smoker would inhale over 20 years.Karagueuzian and his team conducted again the study recorded in the tobacco documents and found that the radiation in cigarettes would cause up to 138 deaths for every 1,000 smokers over a period of 25 years.However, tobacco manufacturer denied that they had concealed the facts from the public.David Sutton, spokesman of Philip Morris, the largest U.S. tobacco company, said the polonium-210 was a "naturally occurring element in the air" and had been widely discussed by the public health community for years.

BEIJING, Oct. 10 (Xinhuanet) -- China's small businesses turned to be the first to ring the alarm as the country is walking a fine line between fighting inflation and maintaining growth.Some entrepreneurs have disappeared and others have jumped off buildings almost every week since April in Wenzhou City, an entrepreneurial capital in eastern China's Zhejiang province, Xinhua reported.The sudden disappearance of the business owners has revealed a surprisingly gloomy picture for the small and medium-sized enterprises (SMEs) in China.RUNAWAY BOSSESAccording to a Xinhua investigation, at least 80 cash-strapped businesspeople in Wenzhou have skipped town or declared bankruptcy to invalidate more than 10 billion yuan (1.6 billion U.S. dollars) in debt.Just last month, two local entrepreneurs in Wenzhou killed themselves by jumping off the buildings and another broke his leg in a similar suicide attempt.The tragedies in Wenzhou are extreme cases of private SMEs struggling to survive a liquidity crunch amid the country's macro control policies set to curb inflation and cool down the over-heated property market.In Wenzhou, one-fifth of the 360,000 small and mid-sized businesses have stopped operating due to cash shortages, according to the city's council for small and medium-sized enterprises.Of the 855 companies surveyed by the Wenzhou Economic and Information Commission, more than 76 percent said they are almost out of money and are struggling to continue production.But many cash-strapped firms are unable to borrow money from banks, and some have turned to China's underground lending market to pool money from individuals and firms.The steep rates of the informal loans pushed some businesses to the brink of collapse.

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.

来源：资阳报