山西痔疮的检查方法(山西痔疮的出血症状) (今日更新中)

LOS ANGELES, April 6 (Xinhua) -- Freeze-dried strawberries may play a role in the prevention of esophageal cancer, a new study suggests."Strawberries may be an alternative or work together with other chemopreventive drugs for the prevention of esophageal cancer," said lead researcher Tong Chen, M.D., Ph.D., assistant professor, division of medical oncology, department of internal medicine at the Ohio State University.Study findings were presented at the ongoing 102nd annual meeting of the American Association for Cancer Research (AACR) in Orlando, Florida, according to the American Association for the Advancement of Science (AAAS) on Wednesday."We concluded from this study that six months of eating strawberries is safe and easy to consume. In addition, our preliminary data suggests that strawberries can decrease histological grade of precancerous lesions and reduce cancer- related molecular events," said Chen, who is also a member of the Molecular Carcinogenesis and Chemoprevention Program in the Ohio State University Comprehensive Cancer Center.The study involved a group of participants who consumed 60 grams of freeze-dried strawberries daily for six months and completed a dietary diary chronicling their strawberry consumption.The researchers obtained biopsy specimens before and after strawberry consumption. The results showed that 29 out of 36 participants experienced a decrease in histological grade of the precancerous lesions during the study.Using freeze-dried strawberries was important because by removing the water from the berries, they concentrated the preventive substances by nearly 10-fold, Chen said.Esophageal cancer is the third most common gastrointestinal cancer and the sixth most frequent cause of cancer death in the world, she noted.Chen and her team are studying esophageal squamous cell carcinoma (SCC) which makes up 95 percent of cases of esophageal cancer worldwide. China, where this study took place, has the highest incidence of esophageal SCC, according to the AAAS.In a previous study, Chen and colleagues found that freeze- dried strawberries significantly inhibited tumor development in the esophagus of rats. Based on these results, they embarked on a Phase Ib trial that included participants with esophageal precancerous lesions who were at high risk for esophageal cancer."Our study is important because it shows that strawberries may slow the progression of precancerous lesion in the esophagus," Chen said.But she said they need to test this in randomized placebo- controlled trials in the future.

PARIS, May 17 (Xinhua) -- Arianespace has approved the preparation review of the third Ariane 5 flight, which is expected to lift two communication satellites on Friday from the spaceport in French Guiana, the European launching center said on Tuesday.The prior readiness review approved that "Ariane 5 is now cleared for its May 19 rollout from the Final Assembly Building to the ELA-3 launch zone, where it will be readied for liftoff on Friday at 5:38 p.m. local time in French Guiana," the space center said in a statement.This dual payload flight will orbit GSAT-8 and ST-2 satellites, with a combined mass of 8,190 kilo grams.Built by Japan's Mitsubishi Electric Company, ST-2 will be utilized by the ST-2 Satellite Ventures joint company of Singapore Telecommunications Ltd (SingTel) and Taiwan's Chunghwa Telecom Company Ltd. for Ku- and C-band relay services across the Middle East, Central Asia, India and Southeast Asia.The lighter passenger GSAT-8, built by the Indian Space Research Organization (ISRO), will serve to augment India's Ku- band relay capabilities and offer aircraft navigation assistance over Indian airspace and adjoining areas with its two-channel GAGAN system.The Arianespace started its 2011 busy year for heavy-lift Ariane 5 with the milestone launch of Europe's second Automated Transfer Vehicle (ATV) on February 16, and then a dual payload on April 22 that orbited Yahsat Y1A and Intelsat New Dawn satellites.

BEIJING, May 10 (Xinhuanet) -- Autism spectrum disorder may be under diagnosed and under reported worldwide and rigorous screening is needed for accurate estimates, said researchers in Monday's American Journal of Psychiatry.Researchers from the Yale Child Study Center, George Washington University and other leading institutions screened every child aged 7 to 12 in Ilsan district of the city of Goyang, a community of 488,590 in South Korea, and found more than two-thirds of ASD cases in the mainstream school population unrecognized and untreated.They estimated the prevalence of ASD in South Korea to be 2.64 percent, or approximately 1 in 38 children.The figure is more than twice the rate usually reported in the developed world. Even that rate, about 1 percent, has been climbing rapidly in recent years — from 0.6 percent in the United States in 2007, for example.“From the get-go we had the feeling that we would find a higher prevalence than other studies because we were looking at an understudied population: children in regular schools,” said the lead researcher, Dr. Young-Shin Kim, a child psychiatrist and epidemiologist at the Yale Child Study Center.By contrast, other research groups measure autism prevalence by examining and verifying records of existing cases kept by health care and special education agencies, but leaving out many children whose parents and schools have never sought a diagnosis.Kim said the researchers concluded autism prevalence estimates worldwide may increase if rigorous screening and comprehensive population studies are used to produce prevalence estimates.But it is suggested the findings did not mean that the actual numbers of children with autism were rising, simply that the study was more comprehensive than previous ones.

BEIJING, Feb. 9 (Xinhua) -- China has introduced new stimulus policies to boost the development of the software and integrated circuit (IC) industries.Software firms will continue to enjoy preferential value-added tax policies, according to a circular posted on the central government's website, www.gov.cn on Wednesday. The circular was dated Jan. 28.The new policies also granted tax cuts to manufacturers of integrated circuit. Enterprises of IC products whose product line is less than 0.8 micron (including 0.8 micron) wide will be exempted from corporate income taxes on the first and the second year after reaching profitability, according to the statement.Taxes will also be halved for such companies from the third to fifth year after reaching profitability.Makers of IC products that have a product line that is less than 0.25 micron wide or have invested more than 8 billion yuan (1.21 billion U.S. dollars) in production will pay reduced income taxes.For companies that have operated for more than 15 years, corporate income taxes will be exempted from the first year to the fifth after reaching profitability.Between the sixth and the tenth year, the firms will pay half of the taxes, the statement said.The government also encouraged consolidation in the software and IC industries and will provide financial support to technological research and development.

CHICAGO, Jan. 21 (Xinhua) -- Chinese President Hu Jintao left Chicago for China on Friday after concluding a state visit to the United States, during which he and his U.S. counterpart Barack Obama agreed to build a China-U.S. cooperative partnership based on mutual respect and mutual benefit.Hu, who began his four-day visit Tuesday, had extensive and in-depth discussions with Obama at the White House on Wednesday on major bilateral, regional and world issues.Chinese President Hu Jintao shakes hands with U.S. President Barack Obama during a bilateral meeting at the White House in Washington, the United States, Jan. 19, 2011.The two sides reached "important agreement on China-U.S. relations and major international and regional issues of shared interests," the Chinese president said when he and Obama met the press following their discussions."We both agree to further push forward the positive, cooperative and comprehensive China-U.S. relationship," Hu said, adding that both sides also pledged to forge "a China-U.S. cooperative partnership based on mutual respect and mutual benefit" for the benefit of the two countries and beyond.

来源：资阳报