邯郸怀孕1个月可以做三维b超吗(邯郸怀孕试纸什么时间用比较准) (今日更新中)

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.

SHANGHAI, Jan. 29 (Xinhua) -- Three Carrefour stores were fined 500,000 yuan (75,988 U.S. dollars) each on Saturday for overcharging customers in east China's metropolitan Shanghai, said municipal price regulators.The fine is the highest for such wrongdoing, with the tickets being issued Saturday morning.The three stores were also ordered to correct their illegal pricing and refund overcharged customers, said the regulators.A hearing will be held to decide the final amount of the fine. Carrefour representatives will be able to respond to the charges at the hearing, according to regulators.China's price regulator announced last week that it had found several retailers cheating customers, which included 11 of Carrefour's China stores.Carrefour China promised customers Saturday that it would provide refunds of five times the difference between advertised prices and incorrect prices charged at registers, after it was blacklisted by Chinese authorities due to deceptive pricing.Chen Bo, spokesperson with Carrefour China, apologized to Chinese customers during an exclusive interview with Xinhua.Chen said the company has started to work on this pricing issue.Carrefour China has established both short-term and long-term measures to resolve the issue, Chen added."We will have our special control group conduct internal price inspections, with wide coverage and high frequency," Chen said.Chen said the refund policy would be permanently implemented at Carrefour's 182 outlets in China, with non-implementation of the policy being regarded as a violation of company rules.The National Development and Reform Commission, China's top economic planner, also urged authorities to step up price checks ahead of the Spring Festival, which falls on Feb. 3 this year.The Spring Festival holiday is usually the busiest shopping season, as the public makes large purchases of food and gifts for families and friends.

LOS ANGELES, April 29 (Xinhua) -- Clinical and teaching microbiology laboratories are linked with a nationwide salmonella outbreak in the United States that has killed one person and sickened dozens of others, health officials confirmed on Friday.Since August, about 73 people in 35 states have been sickened by salmonella bacteria, and some of those cases involve a strain of Salmonella typhimurium sold commercially to laboratories, officials from the Centers for Disease Control and Prevention (CDC) said in remarks published by msnbc.com.Illnesses have been tied to laboratories from Alaska to New York, with most reporting one or two cases. Five cases have been reported in Washington state and four in Minnesota.The first illness occurred late August and the most recent cases were reported March 8, according to the CDC.The patients include employees and students of the laboratories, as well as children in the homes of people who work or study at the labs.Patients ranged in age from less than one to 91, with a median age of 24, the CDC said.Cases that developed after March 19 may not yet be included in the total because of the lag time in assessing and reporting illness, said the report.CDC officials warned that bacteria used in the labs can be transmitted through contaminated lab coats, pens, notebooks, car keys and other items brought into the labs.The CDC is working with local and state health departments, the American Society for Microbiology and the Association of Public Health Laboratories to track the outbreak, the report said.Salmonella infections typically result in diarrhea, fever and abdominal cramps. They can be dangerous in very young children or people with compromised immune systems.

SAN FRANCISCO, April 7 (Xinhua) -- Google's Android will become the most popular smartphone operating system worldwide and will account for 49 percent of the market by 2012, IT research and advisory firm Gartner said Thursday.According to Gartner's projections, worldwide smartphone sales will reach 468 million units in 2011, a 57.7 percent increase from 2010.The company predicts that Apple's iOS will remain the second biggest platform worldwide through 2014 although its share will decrease slightly after 2011, on the assumption that "Apple will be interested in maintaining margins rather than pursuing market share by changing its pricing strategy."Microsoft's Windows, driven by its partnership with Nokia, is expected to move into the mid-tier by the end of 2012 and become the third largest in the worldwide ranking by 2013.Some analysts raised doubts on Gartner's forecasts, saying that its assumption on Apple's price strategy contradicts statements by Apple's chief operating officer Tim Cook and the cooperation between Nokia and Microsoft will not have that much of an impact on smartphone market share by 2012.

来源：资阳报