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WASHINGTON, April 5 (Xinhua) -- NASA and co-researchers from the United States, the Republic of Korea and Japan have found a new mineral named "Wassonite" in one of the most historically significant meteorites recovered in Antarctica in December 1969, the U.S. space agency said on Tuesday in a statement.The new mineral was discovered within the meteorite officially designated Yamato 691 enstatite chondrite. The meteorite likely may have originated from an asteroid orbiting between Mars and Jupiter. Wassonite is among the tiniest, yet most important, minerals identified in the 4.5-billion-year-old sample.The research team, headed by NASA space scientist Keiko Nakamura-Messenger, added the mineral to the list of 4,500 officially approved by the International Mineralogical Association."Wassonite is a mineral formed from only two elements, sulfur and titanium, yet it possesses a unique crystal structure that has not been previously observed in nature," said Nakamura-Messenger.In 1969, members of the Japanese Antarctic Research Expedition discovered nine meteorites on the blue ice field of the Yamato Mountains in Antarctica. This was the first significant recovery of Antarctic meteorites and represented samples of several different types.As a result, the United States and Japan conducted systematic follow-up searches for meteorites in Antarctica that recovered more than 40,000 specimens, including extremely rare Martian and lunar meteorites.Researchers found Wassonite surrounded by additional unknown minerals that are being investigated. The mineral is less than one-hundredth the width of a human hair or 50x450 nanometers. It would have been impossible to discover without NASA's transmission electron microscope, which is capable of isolating the Wassonite grains and determining their chemical composition and atomic structure."More secrets of the universe can be revealed from these specimens using 21st century nano-technology," said Nakamura- Messenger.The new mineral's name was approved by the International Mineralogical Association. It honors John T. Wasson, professor at the University of California, Los Angeles. Wasson is known for his achievements across a broad swath of meteorite and impact research, including the use of neutron activation data to classify meteorites and to formulate models for the chemical makeup of bulk chondrites.
WUXI, Jiangsu, Feb. 17 (Xinhua) -- Chinese Vice Premier Zhang Dejiang said Thursday that developing quality labor and vocational skills would greatly contribute to the social and economic development of the Asia-Pacific region.He made the remarks while delivering a speech at the opening ceremony for the APEC (Asia Pacific Economic Cooperation) Skills Development Promotion Center which was launched in China's eastern city of Wuxi.The Center will play a positive role in enhancing human resources cooperation between APEC members and achieve "inclusive growth" in the region, Zhang said.The Chinese government has always held that human resources are the most important resource in social and economic development, and it would continue to actively take part in APEC activities that encourage regional exchanges and cooperation in human resource development, he said.China would fully support the APEC Skills Development Promotion Project and the development of the center with financial and technical backup, making it a platform for vocational training and personnel exchanges between APEC members, he added.The decision to establish the center was announced by Chinese President Hu Jintao during the 18th APEC Economic Leaders' Meeting in November last year, which sought to advance cooperation on human resources within the APEC framework.
BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Academy of Sciences in the U.S. on Monday.Scientists used a technique called "x-ray crystallography" to reveal the molecular structure of proteins, which work as atom-sized "wires" discharging excess electricity."This is an exciting advance in our understanding of how some bacterial species move electrons from the inside to the outside of a cell," said lead author Tom Clarke of the University of East Anglia's School of Biological Sciences in Norwich, England.He said this discovery means "We can now start developing efficient 'bio-batteries' as the viable energy source in the future."Still, it could take perhaps a decade to go. Before that, existing uses of such bacteria needed to become 100 or 1,000 times more efficient, he said.The advance could also hasten the development of microbe technology that can help clean up oil or uranium pollution, he said.Microbes might in future be enlisted to clean up nuclear accidents such as Japan's Fukushima Daiichi disaster, he added.
BEIJING, April 24 (Xinhua) -- The Chinese government has ordered food companies to keep clear and intact records of all their production and selling operations as part of the efforts to prevent the illegal use of food additives.All food manufacturing and management companies must examine all products in stock for any trace of illegal food additives and keep records of the results in accordance with laws and regulations, according to a circular released Sunday by the food safety committee under the State Council, or China's Cabinet.The circular came days after Vice Premier Li Keqiang warned of the great harm from illegal additives in food, promising "a firm attitude, iron-hand measures and more efforts" in dealing with the problem.Companies that fail to keep genuine and intact records and documents will be ordered to reform, and those providing fake records and certificates will be suspended from operations and punished accordingly, said the circular.According to the circular, it is strictly forbidden to produce and sell non-edible materials that are likely to be used in food production without official certificates, and authorized production companies of these materials must adopt a real-name selling system.These materials, including those banned in animal feed and drinking water, should not be sold to food and feed companies, the circular added.A series of food safety scandals emerged in China recently. In one of the latest cases, steamed buns in Shanghai were reported, last week, to have been dyed, sold past their expiration date, or laced with coloring additives to mislead consumers.
BEIJING, April 12 (Xinhuanet) -- A new research indicats taking vitamin D could ward off vision loss from age-related macular degeneration (AMD) in women younger than 75, according to media reports on Tuesday.In the research, women under 75 who consumed sufficient vitamin D cut their risk of developing early age-related AMD, a leading cause of vision loss and blindness, by 59 percent when compared to women with vitamin D-poor diets.Researchers found that vitamin D levels among patients in the study were most affected by the amount of vitamin D they consumed, through certain fish, dairy, eggs, and leafy greens, not by the amount of outdoor exposure they had. Considering many Americans are actually deficient in vitamin D, this study may offer one more reason for women to include vitamin D-rich foods in the diet, said the lead author on the study, Amy Millen of the University of Buffalo.