济南痛风与假性痛风那个严重(山东那里看痛风) (今日更新中)

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule.The finding was published in the journal Nature Nanotechnology on Monday.In the research, scientist successfully made a single molecule accept an electrical charge and rotate as fast as 120 revolutions per second."This is the first time that electrically-driven molecular motors have been demonstrated, despite a few theoretical proposals," said Charles H. Sykes, professor of chemistry at Tufts who led the team.The single molecule electric motor could lead to new types of electrical circuitry, giving hope for scientists to apply it in medicine and engineering, he said."The next thing to do is to couple it to other molecules, lining them up next to one another so they're like miniature cog-wheels, and then watch the rotation propagation down the chain," said Sykes.

XICHANG, Sichuan, Aug. 12 (Xinhua) -- China launched a communications satellite PAKSAT-1R for Pakistan at 0:15 a.m. Friday from the Xichang Satellite Launch Center in southwest China's Sichuan Province.The satellite was carried by a Long March-3B carrier rocket, according to the launch center. It is China's first in-orbit delivery to Asian customers and also the first commercial satellite export to international users this year.According to statistics from the control center, the satellite successfully separated from its carrier rocket and entered geostationary transfer orbit as scheduled, 26 minutes after being launched.PAKSAT-1R will provide a range of services, including broadband Internet, telecom and broadcasting, covering some regions of Europe, South Asia, the Middle East, and the eastern Africa.The contract for the PAKSAT-1R was signed in 2008 between China Great Wall Industry Corporation and the Space and Upper Atmosphere Research Commission of Pakistan.China and Pakistan share a long history of space technology cooperation. Pakistan's first low-orbit satellite, BADR-A, was launched by China in 1990 with Long March 2E rocket.

BONN, Germany, June 17 (Xinhua) -- The latest United Nations (UN) climate talks ended here on Friday with no surprise -- some " technical issues" saw some progress, as delegates usually said, while major disagreements remained.The two-week UN climate negotiations have made "clear advances" on such issues as extending carbon trading mechanisms, climate fund management and slowing deforestation, Christiana Figueres, UN Framework Convention on Climate Change (UNFCCC) executive secretary, said at a closing press conference.Figueres said delegates from 183 countries stepped forward with a technology mechanism to boost global green technology sharing. The mechanism will include a Climate Technology Center and Network to establish a worldwide clean technology stakeholder community.As for the implementation of a comprehensive package of the Cancun summit last year, this Bonn session has "paved the way" for progress at the next UN ministerial-level climate conference, which is to be held in Durban, South Africa from Nov. 28 to Dec. 9, Figueres said."Strong convergence has emerged on how the Adaptation Committee will be governed, what its composition will be and what its specific role will be," she said. "This progress means that the Committee could be fully operationalized at Durban."The UN climate chief stressed that governments, business circles and civil society cannot solve issues related to climate change "in one meeting," and climate talks are "the most important " negotiations the world has ever seen."The Bonn meeting is practical, focusing on concrete issues. In general, the negotiating process is moving forward step by step and on the right track," Su Wei, China's chief negotiator, told Xinhua on Friday."Despite setbacks and reversals, parties are taking climate change seriously and are willing to promote the negotiations under the Bali Roadmap," he said. "In the past two weeks, contact groups are busy making informal consultations on various topics.""Admittedly, in some key areas, there is a gap among parties," Su said.During the meeting, many delegates and observers have complained that the pace of negotiation was unbearably slow, especially against the backdrop of a new warning from the International Energy Agency, which said the global energy-related carbon emissions rose to a record high in 2010 despite decade-long efforts on curbs.Experts said one of the main hurdles in current talks was still the old topic -- the fate of the Kyoto Protocol, the sole legally- binding pact on industrial countries' emission cuts set to expire at the end of 2012.The protocol, which binds 37 rich countries, has been crippled since Cancun, as Japan, Canada and Russia have clearly stated they would not extend the pact's second commitment period after 2012.The United States, which never ratified the treaty, said it would not accept any legal deal unless other major economies have similar emission constraints.The European Union (EU), the last major bloc that is open to the renewing of the Kyoto Protocol, said its supportive attitude should not be taken for granted. The EU said it would not unilaterally step up efforts on combating climate change if other nations are not willing to do the same.Meanwhile, developing countries insisted that the updating of the Kyoto Protocol remains "the very core issue" of current talks, asking rich nations to shoulder their historical responsibilities and preserve the pact as a major legally-binding instrument to tackle climate change.The Group of 77 and China, representing over 130 developing nations, have said that the renewal of the Protocol should be the priority for Durban.On Friday, Figueres said that "resolving the future of the Kyoto Protocol is an essential task this year and will require high-level political guidance.""By Durban, governments need to come forward with options that will be acceptable to all parties," she said, adding that high- level contacts are necessary to break the ice.She told reporters that environment ministers are due to meet in Berlin from July 3 to 4, known as a continuation of last year's ministerial-level informal talks held in the town of Petersburg near Bonn. Moreover, world leaders are due to discuss climate change on the sidelines of the UN General Assembly in September.Before the Durban summit, delegates have agreed to hold an additional round of climate talks in late September or early October, Figueres revealed.

TAIPEI, Sept. 11 (Xinhua) - As the full moon emerged in the remote sky, families and friends, bringing their barbecue grills, meat, seafood and vegetables, gathered under the Dazhi Bridge nearby Jilong River, one of major barbecue sites for the Mid-Autumn Festival in Taipei.Many families came to the barbecue site as early as at 3 p.m. Sunday for preparation. A Taipei citizen surnamed Wu in his sixties brought all his 30 family members to the barbecue."Every year, our family come out for barbecue only at the occasion of Mid-Autumn Festival, because the festival is for family reunion," he said.He also brought some fireworks to celebrate the traditional Chinese festival.Together with Wu's family, hundreds of people gathered under the bridge for barbecue, an unique scene in Taiwan for the Mid-Autumn festival.Mooncakes are a traditional delicacy for the Mid-Autumn Festival, which falls on the fifteenth day of the eighth month on the lunar calendar, or Sept. 12 this year. The round mooncakes resemble the full moon, a symbol of family reunion in traditional Chinese culture as well as the major theme of the Mid-Autumn Festival.According to some local residents, in the 1980s several barbecue sauce companies competing for the market frequently organized fairs to promote barbecue-related products just before the Mid-Autumn festivals.Through the intensive promotion campaigns, barbecue eventually became a Mid-Autumn festival custom as important as eating mooncake in Taiwan.But mooncake and pineapple cake are still popular gifts for the traditional festival in Taiwan. Weeks ahead of the festival, the advertisements for different brands of mooncake and pineapple cake were carried on local newspapers.Between Ren'ai Road and Xinyi Road in downtown Taipei, there is a weekend flower market becoming one of the options for Taipei citizens to while off the Mid-Autumn Festival holiday.The flower market with 29-year history is in fact a parking lot during weekdays. But during the weekend, the 1.5-hectare area becomes one of the biggest flower markets in Taipei, with about 300 booths selling flowers and plants.A flower seller, surnamed Yang, said the number of buyers increased significantly on Saturday and Sunday, the first two days of the three-day Mid-Autumn Festival holiday and the sales rose by nearly 30 percent.The flower market also held an agricultural product fair on Sept. 10-12, on which tea, fruits and other agricultural products are sold.

HAVANA, Sept. 6 (Xinhua) -- Cuban medical authorities have launched the sales of the world's first therapeutic vaccine against lung cancer, local officials said on Tuesday.The CimaVax-EGF vaccine, as a result of a 25-year research into diseases related to tobacco smoking, has been developed by researchers and scientists at the Center of Molecular Immunology (CIM) in Havana.The active drug ingredient in the vaccine is based on "a protein we all have when cancer is uncontrolled." "The epidermal growth factor is related to all cell proliferation," said Gisela Gonzalez, head researcher of the project."The drug could turn the cancer into a manageable, chronic disease by generating antibodies against the proteins which triggered the uncontrolled cell proliferation," she said.The immunogenic vaccine is appropriate to patients with advanced lung cancer in stages of three and four, showing no positive response to other kinds of treatments such as chemotherapy and radiotherapy, the expert said."It is not possible to prevent the disease but this vaccine improves significantly the status of the critically ill patients," she added.She said the CimaVax-EGF has gone through clinical studies and trials in over 1,000 patients across the island and is currently distributed free of charge in all hospitals of the Caribbean island nation.Gonzalez also said researchers at the CIM planned to use the same principle of the CimaVax-EGF in treating other cancerous tumors such as prostate, uterus and breast cancers.Lung cancer is regarded as one of the world's most serious, common and deadly cancers and is most frequently found among tobacco smokers.According to the World Health Organization, the disease generally kills 5 million people a year, and the figure is expected to rise to as much as 8 million by 2030 unless smoking habits are changed.In Cuba, like many other developing countries across the world, smoking is seen as a status symbol. Lung cancer, killing about 20,000 people a year in the Caribbean country, is considered a serious threat to public health and the leading cause of death in 12 of the country's 15 provinces.

来源：资阳报