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WASHINGTON, Nov. 14 (Xinhua) -- Nearly a fifth of all Americans 12 years or older have hearing loss so severe that it may make communication difficult, according to a new study led by Johns Hopkins University researchers and published Monday in the Archives of Internal Medicine.The findings, thought to be the first nationally representative estimate of hearing loss, suggest that many more people than previously thought are affected by this condition.Study leader Frank Lin, an assistant professor, and his colleagues used data from the National Health and Nutritional Examination Surveys (NHANES), a research program that has periodically gathered health data from thousands of Americans since 1971. The researchers analyzed data from all participants age 12 and over whose hearing was tested during NHANES examinations from 2001 to 2008. Unlike previous estimates, NHANES includes men and women of all races and ages, from cities scattered across the country, so it's thought to statistically mimic the population of the Untied States.Using the World Health Organization's definition for hearing loss (not being able to hear sounds of 25 decibels or less in the speech frequencies), the researchers found that overall, about 30 million Americans, or 12.7 percent of the population, had hearing loss in both ears. That number jumps to about 48 million, or 20.3 percent, for people who have hearing loss in at least one ear. These numbers far surpass previous estimates of 21 to 29 million.Hearing loss prevalence nearly doubled with every age decade, with women and blacks being significantly less likely to have hearing loss at any age. Lin and his colleagues aren't sure why these groups appear to be protected. However, he notes that the female hormone estrogen, as well as the melanin pigment in darker skin, could have a protective effect on the inner ear.

BALI, Indonesia, Nov. 19 (Xinhua) -- Leaders of China, Japan and South Korea met here Saturday to exchange views on trilateral cooperation and regional and international issues of common concern.Chinese Premier Wen Jiabao, Japanese Prime Minister Yoshihiko Noda and South Korean President Lee Myung-bak were meeting on the occasion of a series of meetings for East and Southeast Asian leaders in this Indonesian resort city on Friday and Saturday.Speaking at the meeting, Wen said the cooperation between the three nations currently had good momentum, which was not only in line with the interests of the three sides but also contributed to the stability and development of the Asia and the world.Chinese Premier Wen Jiabao (L), Japanese Prime Minister Yoshihiko Noda (C) and Republic of Korea (ROK) President Lee Myung-Bak pose for photos during the Trilateral Summit Meeting for leaders of the three nations in Bali, Indonesia, Nov. 19, 2011.As the coordinator of next year's China-Japan-South Korea cooperation, China would like to further enhance high-level exchanges, policy coordination and strategic trust between the three countries, providing political impetus and promoting more advancement in trilateral cooperation, Wen said.He said next year marked the 40th anniversary of the normalization of diplomatic relations between China and Japan, and the 20th anniversary of the establishment of diplomatic relations between China and South Korea.In the meeting, Wen proposed the joint research into a free trade area between the three countries be completed this year, and negotiations start in 2012.Wen also suggested enhancing trilateral cooperation in the fields of transportation, finance and environmental protection, among many others.Also speaking at the meeting, the Japanese prime minister and the South Korean president said the cooperation between the three nations had seen remarkable achievement and its prospects were promising.The three sides should continue to deepen their exchanges and cooperation in various fields including economy and trade, finance, investment, disaster relief, culture, education and tourism, and strengthen the coordination in regional and international issues to promote common development, according to them.During the meeting, the three leaders also exchanged views on other regional and international issues of common concern.

BEIJING, Jan. 6 (Xinhua) -- Beijing will offer residents 20,000 rental bikes this year to ease the city's notorious traffic jams, according to authorities with the Beijing Municipal Commission of Development and Reform.Five hundred rental kiosks will be set up around the city to offer residents over 20,000 rental bikes, the commission said.Beijing has also proposed creating new bike lanes in some areas, including main streets, historical and cultural conservation areas and some major business districts, from 2011 to 2015, according to the commission.The capital city currently has about 5 million vehicles on its roads, leading to serious traffic congestion that frustrates the city's residents on a daily basis."A lack of bike lanes is the reason why I refuse to ride a bike. Bikes and vehicles are using the same lanes, and that frightens me and makes me feel unsafe," said Beijing resident Song Tao.People often park cars on the city's existing bike lanes, pushing cyclists onto the vehicles' lanes, said Song.To ease traffic congestion, Beijing has made various efforts to encourage people to opt for modes of public transportation.On Dec. 31, Beijing opened three new subway lines, bringing the number of subway lines in Beijing to 15, with a total length of 372 kilometers, said Beijing Metro Spokesman Jia Peng.Beijing will open four more subway lines in 2012, according to information released at a rail transit construction mobilization conference.Amid other measures to ease traffic in 2011, city authorities decided to allow only 240,000 vehicles to be registered annually, slashing the new car registrations by two-thirds from the 2010 level.Meanwhile, vehicles are banned from roads one day each week according to license plate numbers.

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.