伊宁包皮太长手术多少钱(伊宁怀孕一周左右初期症状) (今日更新中)

BEIJING, Oct. 2 (Xinhua) -- Chinese archeologists have found evidence indicating that the mysterious ancient city of Loulan (Kroraina) once had highly-developed agricultural systems.Scientists from the Institute of Geology and Geophysics under the Chinese Academy of Sciences conducted remote sensing procedures, field investigations and sample testing in the area and found that there were once large tracts of farmlands in Loulan.The farmland featured regular and straight circumferences stretching for 200 to 1,000 meters as well as irrigation ditches running throughout, said Qin Xiaoguang, a member of the research team.Moreover, researchers found grain particles in the area's ground surface, which are very likely to be remains of crop plants, Qin said.These findings show that irrigation farming had been practiced in Loulan for at least 100 years, Qin said.Qin said they also found canal remains measuring 10 to 20 meters wide and 1.6 meters deep in the Loulan relics, indicating that the city, which is suspected of perishing in drought, was once rich in water resources.The ancient city was a pivotal stop along the famous Silk Road, but mysteriously disappeared around the third century AD.Previous historical records suggested that Loulan's economy was sustained by widespread agricultural activity, but no remains or other evidence had been found before the most recent discoveries.

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."

BEIJING, Nov. 26 (Xinhua) -- In response to the government's call to build a greener economy, China's transport authorities have taken a slew of measures to promote energy saving and emission reductions in the sector.Under the sector's funding policy unveiled earlier this year, 122 emission-cutting projects in the industry have received financial support totalling 250 million yuan (39.3 million U.S. dollars). Encouraged by the special funds, another 8.06 billion yuan in investment went to the projects, according to He Jianzhong, spokesman for the Ministry of Transport (MOT).The projects were estimated to be able to save 315,000 metric tons of coal equivalent, replace 224,000 metric tons of fuel oil and reduce carbon dioxide emission by 1.14 million metric tons, He said.Meanwhile, the MOT has launched nationwide programs to promote low-carbon traffic. It has carried out 80 pilot projects on emission control and designated 10 cities as pilot areas to study and promote green transport system, including Tianjin, Shenzhen, Xiamen, Guiyang, Baoding and Wuhan.He said the ministry will continue to intensify efforts to regulate emissions in the sector to meet the industry's control target during the 12th Five-Year Plan period (2011-2015).In efforts to build a more environmental-friendly society, the government pledged that it will reduce the intensity of carbon dioxide emissions per unit of economic output in 2020 by 40 to 45 percent compared with the level of 2005.

BEIJING, Jan. 8 (Xinhua) -- Only one in every three passengers secured train tickets on Saturday through a new online booking system or by phone, according to railway statistics released Sunday.A total of 2.112 million train tickets were sold online or by phone on Saturday, making up 36.3 percent of the total sales, the Ministry of Railways (MOR) said.Railway authorities have long been under pressure to increase capacity and improve ticketing services, as many find it extremely hard to secure a single ticket during major holidays such as the upcoming Spring Festival.The MOR set up an online ticketing system this year in a bid to ease passengers' frustrations in purchasing tickets.However, website glitches have added to the woes of travelers, especially migrant workers, who make up the biggest group in the Spring Festival travel rush.The rush, dubbed the world's largest seasonal migration, started Sunday and will continue for over 40 days.China's railways are expected to carry 235 million passengers over the next 40 days, up 6.1 percent year-on-year, the MOR said last week.The Spring Festival, or the Chinese Lunar New Year, falls on Jan. 23.

来源：资阳报