济南怎样检查是否包茎(济南什么对前列腺好) (今日更新中)

BEIJING, April 12 (Xinhuanet) -- The elderly have a difficult time with multi-tasking as a study suggests that older brains behave differently when it comes to switching between two tasks, according to media reports on Tuesday.Researchers used functional magnetic resonance imaging (FMRI) to analyze brain activity in 20 people over age 60 by asking them to contemplate outdoor photos shown briefly. Then the elderly were presented with the picture of a face and asked to determine its gender and age, before being asked to recall details from the original scene they viewed.Researchers then compared their results to a similar experiment with 20 younger adults and found the brains of older subjects were less capable of disengaging from the interruption and reestablishing the neural connections necessary to switch back to focusing on the original memory."Unlike younger individuals, older adults failed to both disengage from the interruption and re-establish functional connections associated with the disrupted memory network," write Wesley C. Clapp of the University of California, San Francisco, and colleagues in the Proceedings of the National Academy of Sciences.The study, published in the online edition of the journal Proceedings of the National Academy of Sciences, sheds new lights into a growing body of studies showing that one's ability to move from one task to another in quick succession becomes more difficult with age.

BEIJING, Feb. 21 (Xinhua) -- China's top leading body Monday pledged to prevent wild swings in the economy, while warning that the economic situation in 2011 would be complicated.The country should maintain stable and consistent macro-economic policies while improving accuracy, flexibility and efficiency of the policies, the Political Bureau of the Communist Party of China (CPC) Central Committee decided at a meeting presided over by President Hu Jintao, who is also General Secretary of the CPC Central Committee.Officials at the meeting were urged to "remain sober, be aware of difficulties, and work hard to fulfill the tasks this year so as to create a good beginning for the 12th Five-Year Program (2011-2015)."The top echelon of leadership reassured that China would continue an active fiscal policy and prudent monetary policy, while trying to balance steady economic growth with economic restructuring and control of inflationary expectations."It is necessary to maintain stable commodity prices, expand domestic consumption, increase investment in agriculture, speed up industrial restructuring, promote education and development of science and technology, and improve people's livelihoods and cultural services," the Political Bureau of the CPC Central Committee urged at the meeting.It also reiterated the importance of making great efforts to expand reforms in key sectors, advance the cause of opening-up, while intensifying endeavor to build a clean government and fight corruption.Members of the Political Bureau of the CPC Central Committee also discussed the drafts of the government work report and the 12th Five-year Program, or the national development plan for 2011 to 2015.The two documents will be submitted to the top legislature for discussion and approval at its forthcoming annual session in March.The period from 2011 to 2015 will be critical for China which wants to build a well-off society, said a statement from the meeting.In the next five years, in a bid to meet Chinese people's expectations for a better life, China will stick to scientific development by focusing on accelerated transformation of its way of economic growth while deepening the reform and opening-up, guaranteeing and improving people's livelihoods, according to the statement."It is necessary to solidify and boost China's success in outperforming other countries in dealing with the international financial turmoil, and advance the economy to grow at a faster and steady pace for a long time while guaranteeing social harmony and stability," the statement said.Great efforts should also be made to develop social services, advance the cause of conserving energy and resources, protecting the environment in a down-to-earth manner, as well as keep intensifying the drive to enhance reform of the government, the statement said.

BEIJING, March 24 (Xinhuanet) -- A new study has found that many overweight women and children often underestimate how heavy they are, according to media reports Wednesday.The study, conducted by researchers from Columbia University Medical Center in New York City, surveyed 111 women with the average age of 39 and 111 children aged between 7 and 13.Among the participants, about 66 percent of the women and 39 percent of the kids were overweight or obese.They were shown images of different body silhouettes representing a range of weights, including underweight, normal weight, overweight, obese and extremely obese.The research findings showed that 82 percent of obese women and 43 percent of overweight women underestimated their weight, while only 13 percent of normal weight women did so.As to the children group, about 86 percent overweight or obese kids low-balled their weight.Lead author Dr. Nicole Dumas said, "The implications of this is the overwhelming impact of obesity on children who are growing up in communities where obesity and overweight is the norm rather than the exception."  She added, "Strategies to overcome the obesity epidemic will need to address this barrier to weight loss."

WASHINGTON, May 3 (Xinhua) -- People diagnosed with asthma in the United States grew by 4.3 million between 2001 and 2009, according to a new report released Tuesday by the Centers for Disease Control and Prevention (CDC).In 2009, nearly one in 12 Americans were diagnosed with asthma. In addition to increased diagnoses, asthma costs grew from about 53 billion U.S. dollars in 2002 to about 56 billion dollars in 2007, about a six percent increase. The explanation for the growth in asthma rates is unknown, according to the CDC.Asthma is a lifelong disease that causes wheezing, breathlessness, chest tightness, and coughing, though people with asthma can control symptoms and prevent asthma attacks by avoiding things that can set off an asthma attacks, and correctly using prescribed medicine, like inhaled corticosteroids. The report highlights the benefits of essential asthma education and services that reduce the impact of these triggers, but most often these benefits are not covered by health insurers."Despite the fact that outdoor air quality has improved, we've reduced two common asthma triggers -- secondhand smoke and smoking in general -- asthma is increasing," said Paul Garbe, chief of CDC 's Air Pollution and Respiratory Health Branch. "While we don't know the cause of the increase, our top priority is getting people to manage their symptoms better."Asthma triggers are usually environmental and can be found at school, work, home, outdoors, and elsewhere and can include tobacco smoke, mold, outdoor air pollution, and infections linked to influenza, cold-like symptoms, and other viruses.According to the report, asthma diagnoses increased among all demographic groups between 2001 and 2009, though a higher percentage of children reported having asthma than adults (9.6 percent compared to 7.7 percent in 2009). Annual asthma costs in the United States were 3,300 dollars per person with asthma from 2002 to 2007 in medical expenses. About two in five uninsured and one in nine insured people with asthma could not afford their prescription medication."Asthma is a serious, lifelong disease that unfortunately kills thousands of people each year and adds billions to our nation's health care costs," said CDC Director Thomas Frieden. "We have to do a better job educating people about managing their symptoms and how to correctly use medicines to control asthma so they can live longer more productive lives while saving health care costs."

来源：资阳报