徐州有四维彩超检查徐州哪个医院做四维彩超做的好,徐州那几家可以做四维彩超,徐州胎儿二十七周四维彩超,徐州照四维需要预约吗,徐州做胃镜 一般要多少钱,徐州刘庄附近哪家医院做四维超,徐州做肠镜是无痛好还是普通的好

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.

CHANGCHUN, Jan. 22 (Xinhua) -- Chinese Vice President Xi Jinping stressed political integrity as the most important criteria in electing Communist Party cadres, during his three-day inspection tour in northeast Jilin province, which ended Saturday.The standards of political integrity and professional competence, with the former being the most important, should be strictly observed in the upcoming election of the new term for Party Committee members at provincial, city, county and township levels, Xi, a Standing Committee member of the Communist Party of China (CPC) Central Committee Political Bureau, said.During his meeting with leaders of the provincial Party Committee and provincial government of Jilin, Xi said efforts should be made to reinforce the notion of putting people first and exercising the state power for the people among carders.Chinese Vice President Xi Jinping (2nd L front) talks with a staff member at a workshop of FAW car factory in Changchun, capital of northeast China's Jilin Province, Jan. 21, 2011. Xi made an inspection tour in Jilin from Jan. 20 to 22.While visiting a community Party organization, Xi also asked grass-roots Party organizations to give priority to building a closer bond with the public and serving the public.During his visit to several companies, including Changchun-based First Automobile Works, Xi called for efforts to develop technology-intensive industries and the manufacturing of high-end products to promote economic restructuring.He also visited flood-hit areas to observe the relocation of flood victims and reconstruction work. Jilin Province was hit by unprecedented floods last July and August.He asked local governments to rebuild flood-damaged homes as soon as possible and repair those destroyed water conservancy projects and encourage farmers to grow crops on flooded lands.

LOS ANGELES, April 7 (Xinhua) -- Unrecycled energy-efficient bulbs release tons of mercury into the environment every year, raising an environmental concern, it was reported on Thursday.Demand for the energy-efficient lights -- the compact fluorescent light bulb (CFL) -- is growing as government mandates for energy-efficient lighting take effect, yet only about two percent of residential consumers and one-third of businesses recycle the new bulbs, the Los Angeles Times said, quoting the Association of Lighting and Mercury Recyclers (ALMR).Each CFL contains up to five milligrams of mercury, a potent neurotoxin that's on the worst-offending list of environmental contaminants, the report said.As a result, U.S. landfills are releasing more than four tons of mercury annually into the atmosphere and storm water runoff, the Journal of the Air and Waste Management Association said in a study published by the paper.The federal Clean Energy Act of 2007 established energy- efficiency standards for light bulbs that dimmed the future for old-fashioned incandescents, which don't meet those standards. Incandescents are to be phased out by 2014 in the U.S., and California passed even stricter rules, calling for store shelves to be cleared of them by 2013.The old-style bulbs are just too wasteful, converting to light only 10 percent of the energy they consume. The rest is squandered as heat.Sales of energy-efficient alternatives like CFLs, halogen bulbs and LEDs have been growing steadily, with the low-cost CFLs the biggest sellers, according to the paper.If every California household replaced five incandescent bulbs with CFLs, the move would save 6.18 billion kilowatt-hours and prevent the annual release of 2.26 million tons of heat-trapping carbon dioxide, according to the California Energy Commission. That 's equivalent to taking 414,000 cars off the road.But no federal law mandates recycling of household fluorescent lights. Federal rules exempt some businesses, based in part on the number of bulbs used, said Paul Abernathy, executive director of the ALMR, which is based in Napa, Calif.Several states, including California, Massachusetts, Maine, Vermont and Minnesota, do require that all households and businesses recycle fluorescents, the paper said.But the ALMR said compliance is low because of a lack of convenient drop-off options.

BEIJING, Jan. 26 (Xinhua) -- China's civil affairs ministers visited survivors of last year's 7.1-magnitude Yushu earthquake and Zhouqu mudslide prior to China's lunar new year.Dou Yupei, vice minister of Civil Affairs, led a team to Yushu in northwest China's Qinghai Province to visit quake survivors and local cadres beginning on Sunday.Dou told Xinhua that quake survivors in Yushu now had access to food, clothing, safe drinking water, shelters and medical services, and the reconstruction of quake-damaged houses was well underway.Further, the ministry has distributed 45,000 cotton-padded tents to Yushu to house survivors during the extremely cold winter on the Qinghai-Tibet plateau.So far, 160,000 tents have been set up to assure that all survivors have a roof overhead, according to the ministry's statement issued Wednesday.Yushu was jolted by a 7.1-magnitude earthquake on April 14, leaving 2,200 people dead and 220,000 local residents affected.Another vice minister, Sun Shaocheng, visited survivors from a massive mudslide that left 1,700 people dead or missing in Zhouqu, Gansu province.To provide warm shelters to survivors, the Zhouqu county government invested three million yuan (455,000 U.S. Dollars) in renovating vacant school buildings or installing facilities in newly-built apartments.All survivors who previously had taken shelter in make-shift tents were relocated to these buildings before Oct. 13, according to the ministry's statement.

WASHINGTON, April 11 (Xinhua) -- Taking a statin before having major elective surgery reduces potentially serious kidney complications, according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology.Each year, more than 230 million major elective surgeries are performed around the world. Unfortunately, many patients who undergo major operations develop kidney injury soon after surgery, often due to decreased blood flow to the kidneys and/or the effects of inflammation.Animal studies suggest that the cholesterol-lowering drugs called statins protect the kidneys from such damage, but whether a similar benefit occurs in humans is uncertain. To investigate, Amber Molnar, University of Western Ontario, and colleagues conducted a population-based retrospective study of all older patients who underwent major elective surgery in the province of Ontario, Canada from 1995 to 2008. Surgeries included cardiac, thoracic, vascular, intra-abdominal, and retroperitoneal procedures.A total of 213,347 patients from 211 hospitals underwent major elective surgery, and 4,020 patients (1.9 percent) developed postoperative kidney injury within two weeks of surgery. A total of 1,173 patients (0.5 percent) required dialysis within two weeks of surgery, and 5,974 patients (2.8 percent) died within a month of surgery.Prior to surgery, 67,941 patients (32 percent) were taking a statin. Patients taking a statin were 20 percent less likely to develop kidney injury, need dialysis, and die compared to patients who were not taking a statin. Also, there was evidence of a dose-effect, with patients on higher potency statins having less kidney injury. In addition, statins were beneficial whether they were started greater than 90 days or less than 30 days prior to surgery."Our study suggests that statin use in older persons results in less kidney injury following major elective surgery and reduces the risk of premature death after surgery," said Molnar, adding that the results warrant further investigation with more rigorous studies, but such trials will be difficult to carry out.