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NEW DELHI, March 5 (Xinhua) -- Doctors in India have claimed to have successfully performed a rare robotic heart surgery on a 23- year-old person at a hospital in the southern Indian city of Chennai, local media reported Saturday.Dr. R. Ravi Kumar, the Director of the Institute of Cardiovascular Disease at the Chettinad Health City, said the robotically assisted procedure involved replacing both the mitral and the aortal valve simultaneously.The surgery carried out on D. Vijayakanth, an auto driver from Vellore, was done by a three armed robot, took four hours and cost 225,000 rupees (4,500 U.S. dollars)."The best part about using a robot in cardiac surgery is that the patient's heart need not be opened and the surgery can be done using a small 4cm incision. This is not possible with normal surgeries without a robot," Dr Ravi Kumar was quoted by local daily The Times of India as saying.Robotic surgery, which is fairly new in the country, can be used for a gamut of medical procedures, said Dr Ravi Kumar."It requires a lot of precision and intense training because though the robotic hands do the surgery, it has to be controlled by a trained surgeon. One of the biggest disadvantages is the lack of sensory perception which is there when the surgeon actually does the surgery himself," he said.

CANBERRA, March 23 (Xinhua) -- Up to 45 native species in Western Australia's Kimberley region will die out within 20 years if no action is taken, latest study showed on Wednesday.The Priority Threat Management to Protect Kimberley Wildlife report, released by Commonwealth Scientific and Industrial Research Organization (CSIRO) on Wednesday, was commissioned by the Wilderness Society.The report showed that at present, 20.2 million U.S. dollars a year is spent on conservation efforts in the Kimberley, which is home to an assortment of threatened species.However, the report said even if that money was spent properly, the region would still lose some 31 native animals.The numbers of many more birds, reptiles and mammals, such as the Spotted Tree Monitor and the Western Chestnut Mouse, would dwindle.It called for an immediate cash injection of 96 million U.S. dollars to save creatures like the Golden Bandicoot, the Scaly- Tailed Possum and the Monjon Rock Wallaby from extinction.It will follow by an ongoing investment of 40.43 million U.S. dollars annually in the Kimberley to protect its species, as well as boost plant life, help the climate and conserve indigenous land."This investment is great value," one of the report's six co- authors Hugh Possingham said in a statement released on Wednesday."We can save some of Australia's most iconic mammals and birds at a cost of only about one million U.S. dollars per species per year."

ZHENGZHOU, Feb. 16 (Xinhua) -- China's Yellow River catchment authority has launched emergency measures to restrict industrial water usage and to release reservoir water for wheat crops in the face of a worsening drought.The Yellow River Flood Control and Drought Relief Headquarters raised on Wednesday its drought alert from yellow to orange, the second-highest level, indicating the area is facing the worst drought in up to half a century.The headquarters ordered all authorities along the catchment area to initiate an emergency response to ensure water supplies for people and livestock, and to restrict industrial water consumption.The drought, which has plagued the middle and lower reaches of the Yellow River since October last year, was likely to affect more than 40 percent of crops in the area, said a headquarters spokesman.Light to moderate snowfall brought some relief to the wheat farmers in the region over the weekend, but not enough to end the drought. Most regions along the Yellow River received precipitation of less than 10 mm.Thanks to the recent rise in temperatures, ice covering 120-km of the Yellow river has melted, offering more water for irrigation and other water uses.The headquarters' statistics show that water channeled from the Yellow River reached 228 cubic meters per second at 8 a.m. Tuesday, and supplied the drought-plagued Shandong Province, Tianjin Municipality and Hebei Province.The headquarters had released more water from reservoirs along the catchment to help with the irrigation of winter wheat crops, said the spokesman.The Chinese government on Friday announced plans to dig 1,350 wells in eight major wheat-growing provinces to help ease the drought that is threatening grain harvests.

BEIJING, May 19 (Xinhuanet) -- LinkedIn said Wednesday that its stock will debut at 45 U.S. dollars per share, a higher price than the company was expecting even earlier this week, media reports said.The first major U.S. social networking firm to go public, LinkedIn jacked up its initial public offering (IPO) share price for 7.84 million shares to 45 dollars just a week after it first set a target of 32-35 dollars per share.It minted LinkedIn with a market value of more than 4 billion dollars, the highest for a U.S. Internet company taking its first bow on Wall Street since Google Inc. went public nearly seven years ago.The sale could bring in more than 354 million dollars. The company's shares are expected to begin trading on the New York Stock Exchange on Thursday under the symbol "LNKD".LinkedIn has more than 100 million members in over 200 countries and territories. In 2010, the company made 15 million dollars in profit on 243 million dollars in revenue, according to its SEC filing.LinkedIn's biggest shareholder is its founder and chairman, Reid Hoffman, who owns more than 21 percent of the company.

HOUSTON, April 15 (Xinhua) -- A major contractor for the U.S. space shuttle on Friday announced plans to lay off about 50 percent of its employees this summer after NASA retires the orbiter fleet.The contractor, Houston-based United Space Alliance, said it will cut 2,600 to 2,800 jobs, including 1,850 to 1,950 employees in Florida, 750 to 800 employees in Texas, and 30 to 40 employees in Alabama, "due to the completion of tasks related to day-to-day operations of the Shuttle fleet."The cuts will be made in late July and early August after NASA completes the final flight of Endeavour, scheduled for April 29, and the flight of Atlantis on June 28."The accomplishments of this team are unmatched in human spaceflight," Virginia Barnes, the company's president, said in a news release. "It will be difficult to say goodbye to such tremendously talented and dedicated teammates, and we are committed to making this transition as smooth as possible for them."United Space Alliance has approximately 5,600 employees working at sites in Texas, Florida and Alabama, according to the the news release.