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SYDNEY, July 1 (Xinhua) -- Breastfeeding mothers should limit their use of codeine-containing painkillers to four days as they can cause harm, an Australian doctor warned on Friday.The warning is being discussed at a meeting of anesthetists in Sydney."New mothers should limit their use of codeine-containing painkillers to no more than four days and, if they feel drowsy while taking this medication, cease its use and have their baby examined by a doctor for signs of drowsiness," Sydney's Royal North Shore Hospital anesthetist Dr. Gavin Pattullo said."This is because codeine needs to be metabolized by the liver into morphine to offer pain relief and this liver conversion process is very unpredictable," Pattullo said."Some patients' livers produce large amounts of morphine after taking codeine, causing drowsiness, while others fail to produce any morphine at all."Pattullo said for breastfeeding mothers, a large dose of morphine could make its way into the baby and result in the baby's death by overdose."While new mums shouldn't be unnecessarily alarmed, they need to be aware that codeine-containing painkillers in certain circumstances can cause harm," he said.Breastfeeding mothers are being advised to see a doctor if their baby gets sleepy while taking the painkillers.

WASHINGTON, July 8 (Xinhua) -- U.S. space shuttle Atlantis lifted off on Friday morning from Kennedy Space Center in Florida, on the 135th and final flight in NASA's shuttle program.The shuttle blasted off at about 11:29 a.m. EDT (1529 GMT) on a tower of flame, NASA TV showed.Before taking flight, shuttle Commander Christopher Ferguson saluted all those who contributed over the years to the shuttle program."The shuttle is always going to be a reflection of what a great nation can do when it dares to be bold and commits to follow through,'' he said. "We're not ending the journey today ... we're completing a chapter of a journey that will never end.''In this photo released by NASA, space shuttle Atlantis lifts off from NASA's Kennedy Space Center in Florida, the United States, July 8, 2011. U.S. space shuttle Atlantis lifted off at about 11:29 a.m. EDT (1529 GMT) on Friday from Kennedy Space Center in Florida, on the 135th and final flight in NASA's shuttle program.Atlantis's primary payload is an Italian-built cargo hauler named Raffaello which is loaded with 8,640 pounds (3,919 kgs) of food, clothing, supplies and science equipment to sustain space station operations after the shuttles are retired.Only four astronauts take to the skies because there is no shuttle available for a rescue flight should anything go wrong. Normally NASA sends six or seven astronauts on space shuttle flights -- with the last four-person shuttle crew launched 28 years ago.But Atlantis' status as the final flight means there is no other space shuttle on standby and the U.S. would have to call on Russia for any rescue operation. The Russian Soyuz capsules hold just three astronauts and at least one must be Russian, so two crew members would have to fly up and bring home the Americans from the International Space Station one at a time.The crew will also return an ammonia pump that recently failed on the station. Engineers want to understand why the pump failed and improve designs for future spacecraft. One spacewalk is planned during Atlantis' mission, though it will be conducted by NASA's two resident space station astronauts, rather than the shuttle crew.It is the 33rd voyage for Atlantis. Its return to the earth later this month will mark the end of the 30-year shuttle program.Atlantis will be the last shuttle to be retired. Discovery was first in March, followed by Endeavour at the beginning of June. Each shuttle will head to a museum.When the U.S. space shuttle program officially ends later this year, the Russian space program's Soyuz capsule will be the only method for transporting astronauts to and from the station.Space shuttles have made great contributions to U.S. space exploration. They allowed astronauts to not only launch satellites, but to grab and repair them and put them back into service. Most remarkably, they allowed NASA to regularly rejuvenate the Hubble Space Telescope, which for 21 years has produced images that are transforming astronomers' understanding of the universe. With their enormous cargo bays, the shuttles also enabled the United States and its partners to build the International Space Station.However, high costs, risks, policy shift force the U.S. to quit the space shuttle program.NASA originally estimated the program would cost about 90 billion U.S. dollars. However, its actual cost stands at about 200 billion dollars, compared with the 151 billion dollars spent on Apollo which took Americans to the moon in 1969.Seven astronauts perished when Challenger exploded about a minute after launch in 1986. Nearly two decades after the Challenger explosion, a new catastrophe shocked NASA when the shuttle Columbia disintegrated moments before landing in 2003.One out of every 67 flights ended in death. Based on deaths per million miles traveled, the space shuttle is 138 times riskier than a passenger jet.The panel that investigated the 2003 Columbia accident concluded: "It is in the nation's interest to replace the Shuttle as soon as possible.''The Obama administration wants to spur private companies to get into the space taxi business, freeing NASA to focus on deep space exploration and new technology development.During his first-ever Twitter town hall meeting on Wednesday, Obama said NASA needs new technology breakthroughs to revitalize its mission to explore the universe."The shuttle did some extraordinary work in low-orbit experiments, the International Space Station, moving cargo. It was an extraordinary accomplishment. And we're very proud of the work that it did," Obama said. "But now what we need is that next technological breakthrough."

SHENZHEN, June 18 (Xinhua) -- China established its first national gene bank on Friday in south China's city of Shenzhen with the support of the Beijing Genomics Institute (BGI), officials said.With the establishment of the National Gene Bank in Shenzhen, China will be able to better protect, research and utilize its precious genetic resources, boosting the genetics industry and safeguarding the country's genetic information, said Qi Chengyuan, head of the high-tech industry department of the National Development and Reform Committee (NDRC).The gene bank, which was approved by the NDRC in January, is based on data and facilities belonging to the BGI, but will grow with the help of extensive cooperation with other biological organizations both home and abroad, Qi said.The national gene bank "aims to lead the development of international bioindustry as one of the world's largest gene banks," said Yang Huanming, the BGI's president.The BGI, the world's largest genome-mapping institute, has more than 1,000 biological analysis devices working with top-of-the-line genome-sequencing machines.Analysts say the BGI differs from conventional labs, as it can handle data in vast quantities and industrialize its research. Some believe lower wages in China have also contributed to the BGI's competitiveness.Yang Bicheng, the BGI's spokesman, said the payment and welfare packages BGI offers are competitive in China's bioindustry."A researcher with about two years of experience earns around 100,000 yuan (15,440 U.S. dollars) a year. More outstanding researchers can get more, but the gap is not too great," Yang said.Yang said greater motivation comes from better prospects for academic achievements."Our young researchers can work with the world's leading scientists, participate in global science projects and be pioneers in new fields of research. Only BGI offers these kinds of opportunities in China," Yang said.The BGI has published 18 research papers in Science Magazine and the Nature Journal since 2007. The facility has become an international center for genome research and industrialization, with advanced technology and top talent, said Ji Xiaoming, head of the international cooperation department of the Ministry of Science and Technology.China is working to make its genetic research industry into one of the country's pillar industries.A plan approved by the State Council, or China's cabinet, in October 2010 said China will boost the industry by encouraging innovation, promoting industrial application of biological research, fostering market demand and deepening international cooperation.

XICHANG, Sichuan, June 21 (Xinhua) -- China successfully launched a new communication satellite, the Zhongxing-10, from its Xichang Satellite Launch Center in southwest Sichuan Province on early Tuesday.The satellite, carried by a Long March-3B rocket carrier, blasted off from the center at 0:13 a.m., said a statement from the center.According to statistics from the control center, the satellite successfully separated from its carrier rocket and entered Earth's orbit as scheduled, 26 minutes after being launched.The Zhongxing-10 was designed and manufactured by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation.The satellite will provide communication, broadcasting and data transmission services for users in China and the Asia-Pacific region. It will replace the Zhongxing-5B satellite, which was launched in 1998.The launch was the 138th mission for the Long March carrier rocket series.

BEIJING, July 17 (Xinhua) -- China's land prices in 105 cities rose 1.87 percent on average in the second quarter over the first, but the rate of growth slowed, the China Urban Land Price Dynamic Monitor, a land price information provider, announced Sunday. < In the second quarter, land price for business properties averaged 5,506 yuan (about 847 U.S. dollars) per square meter, up 2.77 percent from the previous quarter. The growth rate slowed by 0.56 percentage points.Land price for residential properties averaged 4,443 yuan per square meter, up 2.17 percent. The growth slowed by 0.27 percentage points. The price for industrial uses, meanwhile, was up 1.13 percent to reach 645 yuan per square meter. The growth fell 0.3 percentage points.The country's three most prosperous regions, the Yangtze River Delta Region, Pearl River (Zhujiang) Delta Region, and the Bohai Rim, all reported slower land price growth in the second quarter.