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NAIROBI, Nov. 15 (Xinhua) -- The UN refugee agency said on Tuesday there has been an outbreak of cholera in Dadaab, the world's largest refugee camp in Kenya, which is believed to have started among new arrivals who had most likely acquired it in Somalia or en route to the camp.The UN High Commissioner for Refugees (UNHCR) said the situation in Dadaab, home to Somalis fleeing famine and conflict, is being exacerbated by heavy rains and accompanying risks of waterborne diseases."Rains and flooding had affected the trucking of water to parts of the camps, and we fear some refugees resorted to using unsafe water from flooded areas," the UN refugee agency said in a statement released in Nairobi.According to UNHCR, there are now 60 cases in the camps, including 10 laboratory-confirmed cases and one refugee death. To manage the outbreak, UNHCR and partners have set up cholera treatment centres for severe cases, it said.The UN agency deplored insecurity which it said continues to affect aid efforts more than a month after the kidnapping of three aid workers in Kenya's Dadaab refugee complex.The UNHCR says insecurity is still hampering aid efforts in the area, despite the deployment of 100 Kenyan policemen in the last month.UNHCR is assisting them with vehicles, shelter and telecommunications equipment."Together with our partners, we are exploring options to gradually resume full operations despite continued security incidents in and around Dadaab. In the meantime, refugees are still receiving life-saving aid, namely food, water and health care," it said.According to the agency, most cases can be managed through oral rehydration solutions (ORS) that can be given at home or at the health posts."We are working with UNICEF and the Ministry of Health to train health workers in the community-based management of diarrhoea so that patients can begin treatment at home," it said.UNHCR said it has increased levels of chlorine, which kills cholera-causing bacteria, at water points in the camps. These, it said, are monitored to make sure they are maintained at the correct levels."We are also promoting hygiene practices among the refugees, especially the use of latrines and hand washing with soap. Each refugee received 250 grams of soap with the latest food distribution and this will continue monthly for several months," UNHCR said.Dadaab is home to more than 400,000 registered refugees, nearly all of them Somali, with an estimated 70,000 people having arrived in July and August as conditions in their homeland rapidly deteriorated.

NANCHANG, Oct. 1 (Xinhua) -- A copper sword dating back more than 2,200 years has been discovered in east China's Jiangxi Province, local archaeologists said.The design and shape of the sword indicate that it was forged during the Warring States Period (475 BC - 221 BC), according to Li Guoli, curator of the Nanchang Museum, where the sword is currently being stored.Despite having little aesthetic or scientific value due to a lack of decor or inscriptions, the sword still offers insights into the type of military equipment used during the period, Li said.The identity of the sword's original owner and the precise location where the sword was forged and used are still unknown, Li said.The sword was discovered by a laborer surnamed Xiong in Jiangxi's capital of Nanchang. Xiong found the sword while sorting and cleaning stones that had been dredged up from a riverbank.An argument between Xiong and another worker who was trying to claim the sword aroused attention from the local law enforcement, who then convinced Xiong to turn the sword over to archaeological authorities.

SHANGHAI, Oct. 14 (Xinhua) -- The government of Shanghai, the largest metropolis in eastern China, plans to require users of matchmaking websites to register their real names, a move to make those websites a more honest and ordered community, authorities said on Friday.The environment of the matchmaking websites is chaotic and the anonymity afforded by the Internet opens the door to cybercrimes such as fraud, said Zhou Juemin, chairperson of Shanghai Matchmaking Organization Administration Association.Officials with the Shanghai Civil Affairs Bureau said people who put up personal ads in newspapers may also be requested to use their real names in the future.China's matchmaking industry has been thriving in recent years as the country is witnessing an increase in the number of singles. Statistics from the All-China Women's Federation shows China currently has around 180 million singles.

CANBERRA, Dec. 9 (Xinhua) -- Scientists from Australia's University of New England on Friday said they had discovered the remarkably fossil isa metre-long arthropod with excellent vision called anomalocaris from Emu Bay Shale of South Australia.The scientists reported their finding on the anomalocaris in thescience journal Nature this week.It is reported that anomalocaris is a fearsome ancient predator that swam in the Cambrian oceans 500 million years ago. The researchers said the presence of anomalocaris would have driven the development of protective adaptations in prey animals. Such an escalatory 'arms race' would have seen, for instance, the evolution of such adaptations in prey as shells, camouflage and burrowing into sediments. "It has been unbelievably frustrating being able to see eyes like these at fossil sites like the Burgess Shale (in the Canadian Rocky Mountains), but not have any details. It is really refreshing to have our ideas about these animals confirmed at last, " comments Simon Conway Morris, a palaeontologist at the University of Cambridge, the United Kingdom.The research team was led by paleontologist Dr John Paterson, of the University of New England. He said the most surprising discovery of anomalocaris is the huge number of tiny hardened lenses in each eyes."When you consider that a modern housefly, for example, has about 3000 lenses, it's pretty impressive that an animal half a billion years old already has remarkable vision like this," Paterson said in statement."The fact that each eye in anomalocaris would have had over 16, 000 lenses means it would have very, very good resolution."Paterson said the acute vision of Anomalocaris gave it a distinct advantage over competing predators and prey, as many Cambrian animals either had poor vision or were completely blind. Its acute vision rivals or exceeds that of most living insects and was probably comparable to predatory dragonflies today.He said their findings support the idea that compound eyes evolved very early on in arthropod evolution, before the evolution of jointed legs or hardened exoskeletons.The research team hopes they can find the more fossil remains of Cambrian creatures in the Emu Bay Shale.

BEIJING, Nov. 13 (Xinhua) -- China has established an operation committee for management of the country's first space lab module, Tiangong-1, during its two-year orbit of earth.The committee will deal with operations planning, technical appraisal and flight control of the target orbiter after the unmanned Shenzhou-8 spacecraft returns to earth after its mission, the official website of China's manned space program said.The Tiangong-1 space lab module was launched on Sept. 29 and docked with Shenzhou-8 precisely on Nov. 3, China's first ever space docking attempt. The second docking between Tiangong-1 and Shenzhou-8 is scheduled for Nov. 14.The manned space program said earlier that the same target orbiter Tiangong-1 will accommodate another two docking missions performed by two other Shenzhou spaceships, at least one of which will be manned.The 8.5-tonne Tiangong-1 is the first space lab module that China has built, and the committee will also be the first in taking care of a long-running space asset.The operation committee for Tiangong-1 heralds China's manned space program entering a new phase for lengthy flight missions, Niu Hongguang, director of the operation committee, said on the website www.cmse.gov.cn.The orbiting module management will include taking care of the space lab, making preparations for any further docking tests and gathering experience for building a future space station, Niu said.