济南不勃起不坚(济南性疾病 好治吗) (今日更新中)

WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year.The study found that if HIV-infected heterosexual individuals begin taking anti-retroviral medicines when their immune systems are relatively healthy as opposed to delaying therapy until the disease has advanced, they are 96 percent less likely to transmit the virus to their uninfected partners. Findings from the trial, first announced in May, were published in the New England Journal of Medicine in August.The study was funded by the U.S. National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health."The HPTN 052 study convincingly demonstrated that anti- retroviral medications can not only treat but also prevent the transmission of HIV infection among heterosexual individuals," said NIAID Director Anthony Fauci in a statement. "We are pleased that Science recognized the extraordinary public health significance of these study results."Science's list of nine other ground-breaking scientific achievements from 2011 include:The Hayabusa Mission: After some near-disastrous technical difficulties and a stunningly successful recovery, Japan's Hayabusa spacecraft returned to Earth with dust from the surface of a large, S-type asteroid. This asteroid dust represented the first direct sampling of a planetary body in 35 years, and analysis of the grains confirmed that the most common meteorites found on Earth, known as ordinary chondrules, are born from these much larger, S-type asteroids.Unraveling Human Origins: Studying the genetic code of both ancient and modern human beings, researchers discovered that many humans still carry DNA variants inherited from archaic humans, such as the mysterious Denisovans in Asia and still-unidentified ancestors in Africa. One study this year revealed how archaic humans likely shaped our modern immune systems, and an analysis of Australopithecus sediba fossils in South Africa showed that the ancient hominin possessed both primitive and Homo-like traits.Capturing a Photosynthetic Protein: In vivid detail, researchers in Japan have mapped the structure of the Photosystem II, or PSII, protein that plants use to split water into hydrogen and oxygen atoms. The crystal-clear image shows off the protein's catalytic core and reveals the specific orientation of atoms within. Now, scientists have access to this catalytic structure that is essential for life on Earth -- one that may also hold the key to a powerful source of clean energy.Pristine Gas in Space: Astronomers using the Keck telescope in Hawaii to probe the faraway universe wound up discovering two clouds of hydrogen gas that seem to have maintained their original chemistry for two billion years after the big bang. Other researchers identified a star that is almost completely devoid of metals, just as the universe's earliest stars must have been, but that formed much later. The discoveries show that pockets of matter persisted unscathed amid eons of cosmic violence.

BEIJING, Dec. 2 (Xinhua) -- Medical experts and leaders from the world's leading orthopaedic societies on Friday called for the improvement of health insurance programs and medical care for people in developing countries."Health care should reach the unreached," said Professor H.K.T. Raza, president of the Asia Pacific Orthopaedic Association (APOP), at the Sixth International Congress of Chinese Orthopaedic Association (COA), which is running from Thursday to Sunday in Beijing."If we really want to improve people's well-being, we have to make health care available to those who have difficulty accessing it. Although that will probably be a very difficult task, we should try and do it gradually," said Professor K.M. Chan from the Prince of Wales Hospital in Hong Kong.Statistics from the Ministry of Health show that 1.27 billion Chinese, or 95 percent of the country's population, are covered by basic medical insurance programs.However, private medical insurance accounts for less than 2 percent of the country's health care financing, while private insurance in other countries stands at an average of 20 percent."With the increasing demand for quality health care, there will be higher demand for commercial insurance. With more private health funding in the system, we can increase the quality," Prof. Chan said.Government health care expenditures should be directed toward those who can't afford health care at all, while commercial insurance should cover the needs of those who can afford to purchase it, Prof. Chan said."We need to have different approaches combined together to revamp the current health insurance structure in China," he said."If you want to raise the quality of health care, you need to have the responsibility from the government, the individuals and the insurance system," he added.While China may need to promote its commercial health insurance, in India, the situation is different. Though many medical tourists choose India as their destination for affordable care, health insurance is uncommon in the country.While patients typically pay out of their own pockets for routine care, it is estimated that over 300 million Indians out of a population of 1.2 billion still live on less than one U.S. dollar per day.

BEIJING, Nov. 16 (Xinhua) -- A senior Chinese commerce official said on Wednesday that the country will work to optimize the import mix of mechanical and electronic products so they can play a bigger role in China's restructuring efforts.Li Jinzao, vice minister of the Ministry of Commerce, made the remarks at a forum of the ongoing 13th "China Hi-Tech Fair" in Shenzhen.His remarks echoed a guideline issued in March on promoting the imports of mechanical and electronic products during the 2011-2015 period, in which China pledged efforts to encourage the imports of high-tech products.Li said that China will improve existing policies to attach more importance to the imports of advanced technology, equipment and components to spur innovation.Meanwhile, he said China will organize more trading events to exchange and cooperate with international businesses, and will continue to push the United States and European countries to ease restrictions on civil high-tech exports to China.

YICHANG, Oct. 30 (Xinhua) -- China's Three Gorges Dam on Sunday reached its designed highest mark, the second time for the world's largest water control and hydropower project to run at full capacity.The water level hit 175 meters at 5 p.m. after storing water for nearly two months from the water level of 152 meters, said an official with the China Three Gorges Project Corporation (CTGPC), the developer of the project.A dozen hydropower turbo-generator units started operation on Sunday, generating power capacity of 8.2 million kw, said the official.The dam in central China's Hubei Province completed its first full-capacity test last October.Operating at full capacity should give full play to the dam's functions of generating hydroelectric power, delivering water to the lower reaches to alleviate spring droughts, and containing water from summer flooding, as required by the State Flood Control and Drought Relief Headquarters.The Three Gorges Project was launched in 1993 with a budget equivalent to 22.5 billion U.S. dollars.So far, monitoring shows the dam is operating smoothly.

BEIJING, Oct. 12 (Xinhuanet) -- People are often recommended to eat plenty of fruits and vegetables, but only a minority people take the advice. A new research may motivate more people to do so.BBC reported a new study Tuesday that found eating lots of vegetables and fruits can weaken the effect of a gene variant called 9p21, which is reported to be one of the strongest predictors for heart disease, thereby reducing risks of heart disease.The researchers from McMaster and McGill universities studied the diets of more than 27,000 people around the world, including Europe, China, and Latin America.They found that people with the high-risk gene appeared to have a similar risk of heart disease as people with a low-risk variant of that gene after consuming a diet with a healthy amount of vegetables and fruits.But how diet has such an effect on the gene was unknown, said Dr. Sonia Anand, a lead author of the study published in PLoS Medicine journal.Anand added, "Despite having a high genetic risk for heart disease, a healthy lifestyle can actually turn off the gene."The message here is very clear, eating plenty of vegetables and fruits is definitely good to people's heart health, according to BBC.

来源：资阳报