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WASHINGTON, July 15 (Xinhua) -- Researchers at Mount Sinai School of Medicine have found that grape seed polyphenols -- a natural antioxidant -- may help prevent the development or delay the progression of Alzheimer's disease.The research, led by Giulio Pasinetti, was published online Friday in the Journal of Alzheimer's Disease, which causes brain changes that gradually get worse.This is the first study to evaluate the ability of grape- derived polyphenols to prevent the generation of a specific form of amyloid (A) peptide, a substance in the brain long known to cause the neurotoxicity associated with Alzheimer's disease.In partnership with a team at the University of Minnesota, Pasinetti and collaborators administered grape seed polyphenolic extracts to mice genetically determined to develop memory deficits and A neurotoxins similar to those found in Alzheimer's disease. They found that the brain content of the A*56, a specific form of A previously implicated in the promotion of Alzheimer's disease memory loss, was substantially reduced after treatment.Previous studies suggest that increased consumption of grape- derived polyphenols, whose content, for example, is very high in red wine, may protect against cognitive decline in Alzheimer's. This new finding corroborates those theories."Since naturally occurring polyphenols are also generally commercially available as nutritional supplements and have negligible adverse events even after prolonged periods of treatment, this new finding holds significant promise as a preventive method or treatment, and is being tested in translational studies in Alzheimer's disease patients," said Pasinetti.In Alzheimer's disease, brain cells degenerate and die, causing a steady decline in memory and mental function.

BEIJING, July 27 (Xinhuanet) -- Amazon.com’s e-book reader Kindle 3G with special offers is now the company’s top-selling e-book device, according to media reports on Wednesday.Amazon revealed in its quarterly earnings report that the ad-supported version costs 139 U.S. dollars,  50 dollars cheaper than the comparable Kindle 3G, and costs the same as a Kindle with Wi-Fi connectivity. Many believe Kindle is the most popular dedicated e-book device on the market today.The advertisements will appear only in screensavers (which appear when the reader is in an idle state) and at the bottom of the home screen, so they don’t interrupt readers.“Since AT&T agreed to sponsor screensavers, Kindle 3G with Special Offers is now our bestselling Kindle device,” Amazon’s press release said.Having zoomed past the earlier Sony Reader, and kicked off a wave of competition including the Barnes & Noble Nook and the Kobo E-Reader, Kindle is believed the most popular dedicated e-book device on the market today.

BEIJING, June 11 (Xinhua) -- The Baidu Charitable Foundation (The Baidu Foundation) and The Bill & Melinda Gates Foundation (The Gates Foundation) founded a strategic charitable alliance here Saturday, in a bid to work for a healthy, smoke-free environment both in China and around the world.Li Yanhong, president of Baidu company, China's top online search engine operator, and Bill Gates, co-chair and trustee of the foundation under the names of the couple, attending the ceremony, both wore a shirt that said, "Say No to Forced Smoking."In his speech at the ceremony, Bill Gates said, "This will be a long-term, open-ended alliance. As a sponsor, Mr. Li and I would like to welcome more partners, and we expect to see more Chinese enterprises and all facets of society to focus on public health issues together."Li Yanhong also addressed the meeting, claiming, "Living healthy and green has become a common pursuit of mankind. We hope the alliance can bring together public efforts for this global cause, so that more people can benefit from our endeavor." ' The alliance's first action is to comply with the government ban on smoking in public places and refuse forced smoking, according to a press release from the foundations.Targeting "forced smokers," the alliance will carry out educational campaign through all channels of media to educate and promote self-awareness about the dangers of forced smoking. Moreover, it will also help existing smokers, especially those who are underage, by sharing scientific methods for quitting.Smoking is one of the world's eight primary causes of death, leading to lung disease, cancer, heart disease, low birth rate, fetal death, tuberculosis, high mortality and many other health issues. Smoking forces many families into poverty by causing both poor health and premature death.China ranks first in tobacco consumption and production in the world. China has 300 million smokers, and one in every three cigarettes smoked in the world is smoked in China. More than half of Chinese smokers are male; and more than 1 million people die from smoking related diseases each year.In addition, China has 740 million "forced smokers," whose health also suffers. The World Health Organization (WHO) notes that there is no safe level of second-hand smoke.This year, China published its 12th Five-Year Plan (2011-2015) that clearly stipulates for "implementing a full-scale ban on smoking in public facilities." This is the first time that tobacco control has been included as part of China's five-year plan for national economic and social development."Rules for Implementation of Public Facilities Health Management Regulations," effective since May 1st, also specifies to "ban smoking at all public indoor facilities," providing legal basis for non-smokers to protect their rights of health and to refuse "involuntary smoking."Aside from tobacco control, the strategic alliance co-founded by the foundations will also collaborate on a series of projects, such as AIDS prevention and control, in a joint effort to promote health for mankind.Founded in 2000, the Gates Foundation currently carries out charity projects in over 100 countries. Since establishing the Beijing Representative Office in 2007, the Gates Foundation has supported a range of health and development projects in China, including the advocacy of smoke-free environment, AIDS and tuberculosis prevention and control, and agricultural development and research projects.Launched in 2010, the Baidu Foundation is committed to use information technology for support of youth and disadvantaged groups, focus on the environment and promote social harmony.Ever since Baidu was founded, Li has actively pushed for tobacco control within the enterprise and the industry. He is the only Chinese member of the United Nation AIDS Prevention Senior Committee and also board member of the HuaXia Charity Foundation.

MOSCOW, Aug. 24 (Xinhua) -- A Russian Progress cargo ship crashed into Siberia after failing to reach the right orbit Wednesday. The crash marked the second failure in space launch in less than a week and the third in this year, prompting local media to suspect a major reshuffle in Russia's space industry.UNPRECEDENTED FAILUREThe Progress M-12M unmanned freighter was launched to the International Space Station from Baikonur space center in Kazakhstan on Wednesday. It was expected to reach a near-Earth orbit in about nine minutes after launch.However, after the 325th second of the flight, which was just a few seconds before the vessel should reach the orbit, the ground control center lost it.Russian space agency Roscosmos confirmed later that the cargo ship failed to reach the orbit and fell down. Russian Progress M-12M cargo ship is launched to the International Space Station from Baikonur space center in Kazakhstan on Wednesday, Aug. 24, 2011. It has failed to reach the orbit, the Interfax news agency reported.The malfunction of the Soyuz-U rocket's engine was generally believed to be the cause of the accident, according to local media.A source in the space industry said the spaceship had sent a breakdown report while separating from the Soyuz rocket.Some unconfirmed reports said the fuel tank of the booster leaked and the engine was automatically turned off to avoid explosion.The wreckage of the Progress cargo ship has already fallen in southern Siberia's Altai Republic, where a big explosion was heard by locals, reported RIA Novosti news agency.A state investigation committee has been formed to look into the first ever loss of a Progress freighter.CONCERNS OVER FUTUREThe unprecedented accident raised concerns over the reserves of the six crew members on board the ISS.The ship was loaded with over 3.5 tons of supplies for the ISS, including scientific materials, oxygen, water and food.According to Russia's Ground Control, the loss of these supplies will not affect the ISS crew as there are enough stocks of necessities for two to three months.Also, there is no need for premature return of the crew, said Vladimir Solovyov, a space official.However, it still casts some shadow over the ISS program that relies on Russia exclusively following the retirement of U.S. shuttles.A source from the Russian space industry said the scheduled launches of the Soyuz rockets are likely to be suspended until the reasons of the accident are established.This means that current crew members of the ISS would likely stay longer in the space than planned, as the new members might not be able to replace them on schedule, the source explained. Solovyov said the launch of the next Progress is scheduled for October 28.So far, Roscosmos has refrained from comments regarding the possible halt in manned missions aboard Soyuz carrier rockets."Comments will follow. Now it is necessary to determine the causes of today's abortive launch of a Soyuz-u carrier rocket with the Progress M-2M transport ship," Roscosmos told Itar-Tass news agency.Local media raised the prospect of a major reshuffle in Russia' s space industry as the country has lost a total of six space vehicles over the past nine months.On Aug. 18, a carrier rocket Proton-M failed to deliver to the orbit communication satellite Express-AM4. Earlier in February, Russia had lost a satellite named Geo-IK2.In December 2010, a booster malfunction resulted in the loss of three satellites in the global positioning and navigation system GLONASS.

BEIJING, Sept. 6 (Xinhuanet) -- The amount of space junks floating in Earth's orbit has reached a critical level, warned scientists.The future space missions may become too dangerous to fly for a risk of colliding with space junks, said a report released recently by the U.S. National Research Council (NRC).The kinds of space junks range from huge, the report said, there are thousands of discarded satellites and rocket boosters and countless tiny pieces of daily gabages from space missions.The debris are traveling in orbit at 17,500mph, at such a speed even a tiny clash can destroy a spacecraft.The NRC recommended that NASA should launch a plan to clean up the floating debris and called on other major space nations' cooperation."The current space environment is growing increasingly hazardous to spacecraft and astronauts," said Kessler, an ex-NASA researcher, "NASA needs to determine the best path forward for tackling the multifaceted problems caused by meteoroids and orbital debris that put human and robotic space operations at risk."