上海半边莲对肿瘤的功效与作用(上海腰间盘突出压迫神经腿痛怎么治疗) (今日更新中)

WASHINGTON, April 20 (Xinhua) -- Those childhood music lessons could pay off decades later -- even for those who no longer play an instrument -- by keeping the mind sharper as people age, according to a preliminary study published by the American Psychological Association (APA).The study recruited 70 healthy adults age 60 to 83 who were divided into groups based on their levels of musical experience. The musicians performed better on several cognitive tests than individuals who had never studied an instrument or learned how to read music, according to the research findings published Wednesday online in the APA journal Neuropsychology."Musical activity throughout life may serve as a challenging cognitive exercise, making your brain fitter and more capable of accommodating the challenges of aging," said lead researcher Brenda Hanna-Pladdy, a clinical neuropsychologist at the University of Kansas Medical Center. "Since studying an instrument requires years of practice and learning, it may create alternate connections in the brain that could compensate for cognitive declines as we get older."The three groups of study participants included individuals with no musical training; with one to nine years of musical study; or with at least 10 years of musical training. All of the participants had similar levels of education and fitness and didn' t show any evidence of Alzheimer's disease.All of the musicians were amateurs who began playing an instrument at about 10 years of age. More than half played the piano while approximately a quarter had studied woodwind instruments such as the flute or clarinet. Smaller numbers performed with stringed instruments, percussion or brass instruments.The high-level musicians who had studied the longest performed the best on the cognitive tests, followed by the low-level musicians and non-musicians, revealing a trend relating to years of musical practice. The high-level musicians had statistically significant higher scores than the non-musicians on cognitive tests relating to visuospatial memory, naming objects and cognitive flexibility, or the brain's ability to adapt to new information.The brain functions measured by the tests typically decline as the body ages and more dramatically deteriorate in neurodegenerative conditions such as Alzheimer's disease. The results "suggest a strong predictive effect of high musical activity throughout the lifespan on preserved cognitive functioning in advanced age," the study stated.Half of the high-level musicians still played an instrument at the time of the study, but they didn't perform better on the cognitive tests than the other advanced musicians who had stopped playing years earlier. This suggests that the duration of musical study was more important than whether musicians continued playing at an advanced age, Hanna-Pladdy says."Based on previous research and our study results, we believe that both the years of musical participation and the age of acquisition are critical," Hanna-Pladdy says. "There are crucial periods in brain plasticity that enhance learning, which may make it easier to learn a musical instrument before a certain age and thus may have a larger impact on brain development."The preliminary study was correlational, meaning that the higher cognitive performance of the musicians couldn't be conclusively linked to their years of musical study. More research is needed to explore that possible link.

WASHINGTON, Jan. 20 (Xinhua) -- Visiting Chinese President Hu Jintao on Thursday called upon the U.S. Congress to continue helping the two countries boost their relations.Pursuing a healthy and steady development of China-U.S. ties is China's established policy and strategic choice, Hu stressed in talks here with Speaker John Boehner of the House and Majority leader Harry Reid of the Senate.It has also been the consensus of the U.S. administrations, whether Republican or Democratic, since the two countries established formal diplomatic relations 32 years ago, he added.Chinese President Hu Jintao (2nd L front) meets with U.S. Senate Majority Leader Harry Reid (2nd R front) on Capitol Hill in Washington, the United States, Jan. 20, 2011Thanks to the two nations' concerted efforts, the China-U.S. relationship has been moving forward steadily, Hu said, citing the two countries' increasing cooperation and coordination on trade, terrorism, climate change, Korean Peninsula denuclearization and other bilateral, regional and global issues.A sound relationship between Beijing and Washington not only serves the fundamental interests of both peoples, but greatly contributes to the peace, stability and prosperity of the Asia-Pacific region and beyond, the Chinese president said.With China and the United States differing in culture, social system and development level, it is normal for the two sides to have differences on some issues, he said.But what matters most is the common interests of the two countries, he stressed, saying that Beijing's position is that the two sides should seek common ground while reserving differences, so as to learn from each other and pursue common prosperity on the basis of mutual respect and equality.

TOKYO, May 21 (Xinhua) -- Japanese Economy, Trade and Industry Minister Banri Kaieda met with visiting Chinese Commerce Minister Chen Deming in Tokyo Saturday and agreed the two countries will promote bilateral trade to assist Japan's recovery after the March 11 quake and tsunami.Chen, who accompanied Chinese Premier Wen Jiabao to Japan, told Kaieda that China will offer "as much cooperation as possible to help Japan's reconstruction" by providing necessary supplies.Kaieda said Japan will strive to restore production and supply chain disrupted by the disasters as soon as possible.The two sides said they will conduct various investment and trade activities to strengthen cooperation and personnel exchange, and facilitate the smooth flow of bilateral trade so as to promote sustainable development.The two ministers signed a document on expanding bilateral economic and trade cooperation. They also reaffirmed that free and open trade will help Japan's reconstruction efforts.

SYDNEY, May 27 (Xinhua) -- A toddler and a policeman have become the latest victims of a rare and potentially deadly mosquito-borne disease in Western Australia (WA), local media reported on Friday.The two-year-old child contracted Murray Valley encephalitis (MVE) in the Kimberley of WA and is now in Royal Darwin Hospital in a stable condition, according to Australian Associated Press (AAP).The 29-year-old police officer, who was recently contracted the disease at an Aboriginal community of WA, has emerged from a coma in a Perth hospital but is still unable to communicate.It is not known if the victims from WA's far north will fully recover.In April 2011, a man who had been traveling in WA's northwest became the first person in the state to die from the disease in three years.A 19-year-old Canadian tourist also died after contracting MVE while traveling through the Northern Territory earlier in May.A WA Health Department spokeswoman said nine West Australians had contracted MVE so far in 2011. Several people remain very ill in hospital, she said.

BEIJING, Jan. 19 (Xinhua) -- China's central government on Wednesday called on local authorities to step up efforts to ensure a stable market supply of daily necessities, such as food and clothing, as freezing weather continues to plague south and southwest China.The Ministry of Commerce required local government departments to guide companies to increase supplies such as rice, edible oil, meat and vegetables.It also required local departments to closely watch market changes and release reserves of commodities when necessary, said a statement on its website.The statement said the government of southwest China's Chongqing Municipality has urged local supermarkets to maintain the prices of 10 types of vegetables that are affordable to the public, while authorities in the rain and snow-battered Guizhou and Hunan provinces guided logistics companies and wholesales markets to take measures to insure supplies.The Ministry of Agriculture on Wednesday also ordered local departments to expand areas for growing vegetables when conditions allow, as agricultural experts were also sent to fields to help farmers save their crops.The country's meteorological authority forecast Wednesday that over the next three days, heavy snow and icy rain would continue in provinces and municipalities including Guizhou, Hubei, Hunan, Jiangxi, and Chongqing.

来源：资阳报