梅州妇科过敏问题在线咨询(梅州无痛人流需注意事项) (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. 28 (Xinhua) -- The Chinese government will donate one million U.S. dollars to quake-hit Turkey, Foreign Ministry spokeswoman Jiang Yu announced Friday.Jiang said that China has paid great attention to the situation since a 7.2-magnitude earthquake hit eastern Turkey on Sunday.Jiang noted that Premier Wen Jiabao sent a message of condolence to Turkish Prime Minister Recep Tayyip Erdogan immediately after the quake.The Red Cross Society of China has also donated 50,000 U.S. dollars, and China will continue to offer emergency relief aid to Turkey, she added.According to the Turkish government, as of Friday morning, 570 people were dead and 2,250 injured after the powerful earthquake struck the province of Van in eastern Turkey on Sunday.

KUNMING, Nov. 30 (Xinhua) -- More than 10,000 new HIV infections were reported in southwest China's Yunnan province during the first 10 months of this year, bringing the total number of HIV carriers and AIDS patients in the province to more than 90,000, local AIDS prevention authorities said Wednesday.As of Oct. 31, a total of 93,567 HIV infections had been reported in the province, with the disease claiming 14,340 lives, according to statistics from the Yunnan AIDS Prevention Bureau.The number of HIV infections contracted through sexual contact has been rising and sexual contact is now the main cause of the disease's proliferation, said Xu Heping, director of the bureau.Of the province's infected population, 45.8 percent contracted the disease through sexual contact, while 37.3 percent contracted the disease through intravenous drug abuse, according to the bureau.Sexually transmitted infections accounted for 77.3 percent of new infections during the January-October period, up from 71.3 percent during the same period last year, according to the statistics.Xu said this year's new infections mainly occurred in people between the ages of 20 and 39, accounting for 60.8 percent of the total.Infections among rural residents and unemployed people accounted for 55.3 percent and 18.6 percent, respectively, of this year's total, according to Xu.Lu Lin, director of the Yunnan disease control and prevention center, said migrant workers are particularly vulnerable to the disease due to their nomadic nature and lack of knowledge about the disease.China currently has 346,000 registered HIV carriers and AIDS patients, although the actual number is predicted to hit 780,000 by the end of this year, according to an expert panel consisting of members of China's Ministry of Health (MOH), the World Health Organization and UNAIDS.

CHANGCHUN, Nov. 13 (Xinhua) -- An infrared camera set up by the World Wildlife Fund (WWF) and forestry authorities in northeast China's Jilin province has captured images of a wild Siberian tiger in the Wanda Mountains.Zhu Jiang, head of the WWF Northeast China Program Office, said Saturday that the photos, taken earlier this month, are the first images of a wild Siberian tiger taken in the mountainous area.He said the evidence consolidates the mountains' role as an important habitat for the endangered species, and reinforces the need for local authorities to tighten protection measures, especially clearing animal traps and improving animal rescue efforts.The agency estimates that there are fewer than 20 wild Siberian tigers remaining in China. They live in mountains in the northeastern Heilongjiang and Jilin provinces.Zhu said animal traps still pose a major threat to the safety of wild Siberian tigers and their prey.A wild Siberian tiger was found dead with a trap around its neck in the city of Mishan, Heilongjiang, in October.A WWF survey found an average of 1.6 traps for every 10 km of distance covered in the Siberian tiger nature reserves in Heilongjiang and Jilin last winter."The WWF hopes to cooperate with local governments to protect Siberian tigers and restore their habitats," Zhu told Xinhua. "We aim to help double the population of wild Siberian tigers in China by 2022, the next Year of the Tiger," he said.

来源：资阳报