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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.

BEIJING, Feb. 13 (Xinhua) -- Snow fell again in Beijing Saturday night, three days after the city had its first snow this winter.Snow continued falling on Sunday morning but was forecasted to stop in the daytime.From 8:00 p.m. Saturday to 8:00 a.m. Sunday, precipitation in Beijing averaged 1.7 mm to 3.1 mm in downtown areas, local meteorologists said.Zhang Qiang, head of the municipal artificial weather intervention office, said the office began cloud seeding and was continuing efforts to increase snowfall from 7:25 p.m. Saturday in the nine districts and counties of Miyun, Mentougou, Yanqing, Haidian, Pinggu, Changping, Shijingshan, Fangshan and Huairou.By 8:20 a.m. Sunday, 657 silver iodide rods had been used to increase the snowfall.More than 3,583 people and 768 vehicles have been mobilized since Saturday to clear the snow on major roads of Beijing to ensure road transportation, according to the city transportation departments.Beijing had its first snow of the winter Wednesday and Thursday after 108 days of zero precipitation.Meteorologists said the snowfall in Beijing had helped ease the pressure of drought."Beijing is expected to have another cold front from Feb. 15 to Feb. 16, but it is not sure if there will be another snowfall then," said Liao Xiaonong, chief weatherman with the Beijing Meteorological Bureau.

WASHINGTON, Jan. 19 (Xinhua) -- China and the United States have agreed to further boost their bilateral relationship toward a cooperative partnership for the benefit of the whole world, President Hu Jintao said Wednesday.The visiting Chinese leader presented the course forward at a joint press conference at the White House with his U.S. counterpart Barack Obama following their eighth meeting in two years.During the talks, conducted in "a candid, pragmatic and constructive atmosphere," the two sides reached "important agreement on China-U.S. relations and major international and regional issues of shared interests," according to the Chinese president.Chinese President Hu Jintao (2nd L) holds a bilateral meeting with U.S. President Barack Obama (2nd R) at the White House in Washington, the United States, Jan. 19, 2011. "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.Meanwhile, the two sides "should firmly adhere to the right direction," respecting each other's core interests and handling their relations with a long-term perspective, which will enable both countries to make greater contributions to world peace and development, he said.Citing the growing number of global challenges, the Chinese president stressed that Beijing and Washington "share expanding common interests and shoulder increasing common responsibilities."Accordingly, he added, the two sides have agreed to strengthen exchanges and cooperation in economy, trade, environment, education, science and technology, non-proliferation and counter-terrorism among many other fields.During Hu's ongoing state visit, the two countries signed a number of cooperation agreements. "These will inject fresh momentum into our bilateral cooperation and create a great many job opportunities for our two countries," Hu said.He added that he and Obama also discussed some disagreements in the economic and trade area, with both sides pledging "to continue to appropriately resolve these according to the principle of mutual respect and consultation on an equal footing."Commenting on the relations between the countries's armed forces, Hu said, "We believe expansion of military exchanges and cooperation will be conducive to deepening mutual trust between our two countries."On the situation on the Korean Peninsula, he said that both countries agreed to work together with relevant parties to maintain peace and stability on the peninsula, promote denuclearization of the peninsula and achieve lasting peace and security in Northeast Asia.The Chinese leader reaffirmed China's firm commitment to the path of peaceful development and a win-win strategy of opening up, and appreciated Obama's commitment to a positive and constructive China policy."China is a friend and partner of all countries, and China's development is an opportunity for the world," he said.

BEIJING, March 22 (Xinhuanet) -- NASA scientists are testing its next-generation Mars rover, which will land on Mars next year, under extreme conditions at space-simulation chamber in California, media reports said Tuesday.Scientists at NASA's Jet Propulsion Laboratory in Pasadena, Calif., say they've installed the Curiosity rover in a space-simulation chamber that can mimic the environment the probe will encounter on Mars.  After the chamber's large door was sealed last week, air was pumped out to near-vacuum pressure, liquid nitrogen in the walls dropped the temperature to minus 130 degrees Celsius, and a bank of powerful lamps simulated the intensity of sunshine on Mars.After the test period, the rover along with other portions of NASA's Mars Science Laboratory spacecraft including the cruise stage, descent stage and backshell -- part of protective covering -- will be shipped to the Kennedy Space Center for final preparation for the launch window from Nov. 25 to Dec. 18, 2011. Curiosity will study whether a selected area of Mars has offered environmental conditions favorable for microbial life and for preserving evidence about whether Martian life has existed.

SAN FRANCISCO, April 28 (Xinhua) -- Microsoft Corp. on Thursday posted quarterly revenue and earnings that both beat analysts' expectations.In its fiscal 2011 third quarter ended on March 31, the software giant reported revenue of 16.43 billion U.S. dollars, up 13 percent from the same period a year earlier.Net income and earnings per share were 5.23 billion dollars and 61 cents, representing increases of 31 percent and 36 percent respectively year-on-year.Analysts had expected earnings of 56 cents per share on revenue of 16.19 billion dollars, according to Thomson Reuters."We delivered strong financial results despite a mixed PC environment, which demonstrates the strength and breadth of our businesses," Peter Klein, chief financial officer at Microsoft, said in a statement."Consumers are purchasing Office 2010, Xbox and Kinect at tremendous rates, and businesses of all sizes are purchasing Microsoft platforms and applications," he added.Revenue at four of Microsoft's five major divisions posted double-digit growth in the quarter, indicating the increase of technology spending by enterprises as well as strong demand for the company's entertainment products.The entertainment and devices division saw the biggest revenue growth of 60 percent, which according to Microsoft, were driven by strong demand for its Kinect hands-free motion control system for Xbox 360 and continued strong sales of Xbox 360 console.However, revenue for the division of the company's flagship Windows operating system dropped 4 percent in the quarter, which Microsoft said was "in line with the PC trends."The performance of the Windows division may fuel new concerns that Microsoft's dominance in software for PCs is being threatened by Apple's iPad and tablet computers running other operating systems, some analysts noted.