濮阳东方价格非常低(濮阳东方医院男科口碑高) (今日更新中)

SINGAPORE, Dec. 18 (Xinhua) -- Two Chinese Navy ships called at Singapore's Changi port on Sunday on their way back to China from an escort mission in the Gulf of Aden and the waters off Somali.The destroyer Wuhan and the frigate Yulin were part of the ninth flotilla dispatched by China in July to guard commercial ships in the troubled waters against pirates.They are stopping over in Singapore for three days to replenish fuel, water and other logistic supplies, officials said.The task force will also have exchanges with the Singapore side on anti-pirate efforts, and visit Singapore's Information Fusion Center, which is aimed to promote collaboration and information sharing in maritime security.The Chinese sailors were received at the port in Changi Naval Base on Sunday morning by Colonel Tan Kai Cheong, commander of the 3rd Flotilla, Singapore Navy; Chinese Ambassador to Singapore Wei Wei and other Chinese diplomats, as well as representatives of Chinese companies and the Chinese community in Singapore.Guan Jianguo, commander of the Chinese flotilla, said the task force left the port of Zhanjiang in Guangdong province on July 2. The two Chinese naval warships made port calls in Kuwait and Oman for friendly visits before stopping over at Singapore.The Chinese flotilla escorted 280 commercial vessels, including both Chinese and foreign ships, during the five months of the escort mission in the Gulf of Aden and the waters off Somali.Sixteen of the escorted vessels were Singapore-registered.The Chinese task force and the anti-pirate flotilla dispatched by Singapore also organized exchange visits, and the commanders of the two flotillas also met for exchanges.The Chinese Navy ships will leave Singapore on Tuesday for their home country.

BEIJING, Dec. 20 (Xinhua) -- A senior Chinese official called for a higher level of requirements for promoting cultural and ethical progress at a national conference Tuesday.Li Changchun, a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee urged for efforts to "provide firm ideological assurance, powerful spiritual drive, effective media support and sound cultural conditions for achieving the great goal of building an overall prosperous society."Li, also director of the Central Spiritual Civilization Development Steering Commission, made the remark while addressing the National Award-issuing Conference on the Work of Cultural and Ethical Progress.Li Changchun (1st L), a Standing Committee member of the Political Bureau of the Communist Party of China (CPC) Central Committee and director of the Central Spiritual Civilization Development Steering Commission, presents the awards to the advanced collectives and individuals during the National Award-issuing Conference on the Work of Cultural and Ethical Progress held in Beijing, capital of China, Dec. 20, 2011. Li attended the conference on Tuesday and gave a speech.In his speech, Li extended his gratefulness to everyone engaged in cultural and ethical work at all levels, as well as to people from all walks of life for their active participation in, and support of, the work.Currently, publicizing the Party's new plenary session should be the primary task in cultural and ethical work, Li said."Cultural and ethical progress is a major component of the socialist cause with China's own characteristics," he said, emphasizing that substantial efforts must be made to strengthen Party leadership on the work.The meeting was presided over by Liu Yunshan, a member of the Political Bureau of the CPC Central Committee and deputy-director of the Central Spiritual Civilization Development Steering Commission.In an address at the gathering, he called for greater efforts in publicizing the models of cultural and ethical progress, so as to "enhance the level of civilization of the society as a whole."A total of 27 cities and municipal districts, 899 villages and small towns, and 1,794 institutions and enterprises were awarded for their marked achievements in cultural and ethical progress, and 23 cities and municipal districts that had been previously awarded were allowed to keep their honorary titles.

WASHINGTON, Jan. 16 (Xinhua) -- A new study examining weather patterns around the worldwide pandemics of influenza, which caused widespread death and illness in 1918, 1957, 1968 and 2009, finds that each of them was preceded by La Nina conditions in the equatorial Pacific. The study findings are published online Monday in the Proceedings of the National Academy of Science.The study's authors -- Jeffrey Shaman of Columbia University's Mailman School of Public Health and Marc Lipsitch of the Harvard School of Public Health -- note that the La Nina pattern is known to alter the migratory patterns of birds, which are thought to be a primary reservoir of human influenza. The scientists theorize that altered migration patterns promote the development of dangerous new strains of influenza.To examine the relationship between weather patterns and influenza pandemics, the researchers studied records of ocean temperatures in the equatorial Pacific in the fall and winter before the four most recent flu pandemics emerged. They found that all four pandemics were preceded by below-normal sea surface temperatures -- consistent with the La Nina phase of the El Nino- Southern Oscillation.The authors cite other research showing that the La Nina pattern alters the migration, stopover time, fitness and interspecies mixing of migratory birds. These conditions could favor the kind of gene swapping or genetic reassortment that creates novel and therefore potentially more variations of the influenza virus."We know that pandemics arise from dramatic changes in the influenza genome. Our hypothesis is that La Nina sets the stage for these changes by reshuffling the mixing patterns of migratory birds, which are a major reservoir for influenza," says Shaman.Changes in migration not only alter the pattern of contact among bird species, they could also change the ways that birds come into contact with domestic animals like pigs. Gene-swapping between avian and pig influenza viruses was a factor in the 2009 swine flu pandemic.

BEIJING, Oct. 12(Xinhuanet) -- People allergic to peanuts may find relief in a new research by American scientists, according to Huffington Post Monday.Scientists from the Northwestern University Feinberg School of Medicine have found a way to turn off allergic responses by creating an immune system tolerant to peanuts.They attached peanut proteins, the source of the allergy, to white blood cells of mice. Then the mice's immune systems would recognise the proteins and become tolerant to them.When people eat peanuts, allergic human bodies would recognize peanut proteins as invading pathogens and trigger immune responses like throat swelling, even closing up, which can be lethal. Ditto for mice's bodies.But when peanut protein attached to the body's own cells, the immune systems would regard the peanut proteins as perfectly normal and not attack the cells, said Paul Bryce, an assistant professor involved in the study. Then the allergic responses disappeared.The research was conducted on mice. But the scientists expected the method to cure peanut allergies could apply to humans, according to Huffington Post.Although the research was promising, it did not mean that peanut allergies in humans could be actually cured in the foreseeable future, said Dr. Clifford Basset medical director at Allergy and Asthma Care of New York, to ABC News, "Its all about education, prevention and preparedness".

OTTAWA, Oct. 3 (Xinhua) -- Many friends and colleagues of Canadian scientist Ralph Steinman reacted with shock when they learned on Monday that Steinman won the Nobel Prize for Medicine and Physiology three days after he died.Since 1974, Nobel Prizes are no longer awarded posthumously, but the Nobel Prize committee said that it had made its choice before Steinman's death.Many of Steinman's friends and colleagues said that they learned of Steinman's death at the same time that they learned of his Nobel Prize, which was awarded for a discovery Steinman made in 1973.Steinman, 68, discovered dendritic cells, which help regulate adaptive immunity, which purges invading microorganisms from the body. Dendritic cells activate T cells, which "remember" the DNA sequence of invading organisms and protect the body from later infections from the same disease."Their work has opened up new avenues for the development of prevention and therapy against infections, cancer and inflammatory disease," the citation said.Monday, the Nobel Committee defended its decision to award the prize to Steinman. "The decision to award the Nobel Prize to Ralph Steinman was made in good faith, based on the assumption that the Nobel Laureate was alive," the foundation said in a statement."The Nobel Foundation thus believes that what has occurred is more reminiscent of the example in the statutes concerning a person who has been named as a Nobel Laureate and has died before the actual Nobel Prize Award Ceremony."It is still unclear who will pick up Steinman's prize at the award ceremony later this year.Steinman, a cell biologist at Rockefeller University in New York City, died of pancreatic cancer on Friday. For more than four years, he had used his own immune therapy discoveries to extend his life."The news is bittersweet, as we also learned this morning from Ralph's family that he passed a few days ago," Rockefeller University President Marc Tessier-Lavigne said in a statement."We are all so touched that our father's many years of hard work are being recognized with a Nobel Prize," Steinman's daughter, Alexis, said in the statement. "He devoted his life to his work and his family, and he would be truly honored."Steinman's heirs will share the 1.5-million U.S. dollar prize with American genetics professor Bruce Beutler and French scientist Jules Hoffmann.Dr. Beutler is professor of genetics and immunology at The Scripps Research Institute in La Jolla, California. Dr. Hoffmann headed a research laboratory in Strasbourg, France, between 1974 and 2009 and served as president of the French National Academy of Sciences between 2007 and 2008."Ralph worked right up until last week," said Michel Nussenzweig, a collaborator of Steinman's at Rockefeller University. "His dream was to use his discovery to cure cancer and infectious diseases like HIV and tuberculosis. It's a dream that's pretty close."Steinman was born in 1943 in Montreal, Canada's second largest city, and studied chemistry and biology at McGill University in his hometown before receiving an MD from Harvard Medical School in Boston in 1968. He joined Rockefeller University in 1970 as a postdoctoral fellow."He was diagnosed with pancreatic cancer four years ago, and his life was extended using a dendritic-cell based immunotherapy of his own design," the university said in a statement.In a statement, Canadian Prime Minister Stephen Harper lauded the three winners of the Nobel for medicine and called the award " a fitting final tribute" to Steinman's life's work."Dr. Steinman shall be honored for all time with this achievement," Harper said. "Canadians will mourn his loss."

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