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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, Oct. 11 (Xinhuanet) -- An experimental drug that can remove amyloid plaques from the brains of Alzheimer's patients is being developed by Swiss Roche Holding AG in a small early-stage study, according to a report published in the Archives of Neurology on Monday.Researchers suspect the build-up of such plaques may be a cause of the memory robbing disease, although that theory has yet to be definitively proved. Gantenerumab, a biotech drug designed to bind to amyloid plaques in the brain and remove them, is being targeted at the early stages of Alzheimer's with the hope it can slow progression of the disease while patients are still able to function.The Phase I study of 16 Alzheimer's patients tested gantenerumab at two doses against a placebo over six months of treatment.The Roche drug led to a dose-dependent reduction of brain amyloid, while amyloid load increased in patients receiving a placebo, the report said.The next step will be to investigate whether removal of brain amyloid translates into clinical benefit for patients at doses of the experimental drug that are well tolerated and safe, the report said.Much larger trials and further study will be needed to fully understand how gantenerumab works and whether it can stave off Alzheimer's, said the report.Roche is approaching the disease far earlier because amyloid accumulates for 15 years before dementi.

BEIJING, Dec. 27 (Xinhua) -- The People's Bank of China (PBOC), China's central bank, announced Tuesday that it is banning local regions, institutions or individuals from setting up gold exchanges apart from the existing Shanghai Gold Exchange and Shanghai Futures Exchange.The country also bans the establishment of any gold trading platforms in other exchanges, a statement on the PBOC website said.The statement said the country has ordered a cease to the building of any new gold exchanges or trading platforms. Those which have opened for business must cease operations.The ban came amid bigger risks in gold trading after some local regions, institutions and individuals grew enthusiastic in setting up gold exchanges and trading platforms in recent years as gold prices soared, which led to a surge of illegal practices due to inadequate management, the statement said.It added the central bank will work with the Shanghai Gold Exchange and Shanghai Futures Exchange to boost the healthy development of the country's gold trading market.

NEW DELHI, Jan. 9 (Xinhua) -- Chinese ambassador to India Zhang Yan Monday proposed that China and India make more efforts to develop economic ties.At a meeting on China-India relations attended by Indian National Security Advisor S. Menon, the ambassador said the Chinese side is fully aware of the necessity to narrow the trade gap between the two sides in order to ensure the sustainability of bilateral trade cooperation."China will take measures to increase the import of Indian products which have market demand in China. But our cooperation should not be limited in trade only," said the ambassador.He suggested that China and India should diversify their trade structure, expand the scope and items, and increase the technical content and added value to the products, while expanding into financial, service and investment sectors.The envoy said China and India should initiate policy dialogue and coordinate their economic development strategy in order to ensure steady growth of respective economy, encourage mutual investments, consider the free trade agreement or regional trade arrangement, and increase tourism cooperation.Zhang said that as an encouraging sign of economic ties, the bilateral trade volume is set to hit 70 billion U.S. dollars in 2011, an over 20 percent increase over the previous years, while China set up its first branch of the Industrial and Commercial Bank of China in Mumbai last year.

SUVA, Dec. 18 (Xinhua) -- There are 60 typhoid cases in Nanoko, with 29 already hospitalized, according to Fiji's Health Ministry.Senior Health Inspector Paula Laqere said Sunday that the increas means that people are not practicing proper hygiene standards. Laqere said most of the communities in Fiji have a really low level of good hygiene practices.The other problem is that some communities in Fiji have very poor sources of clean and safe water and this is what Fijian guests need to be cautious of."Typhoid is basically spread through contaminated water and our hygiene practices. It's an indicator that the sanitation level of any community is really low."A 30 day public health emergency is in place for the village, effective from Dec. 12 to Jan. 12.Recently, Fiji recorded rates of high typhoid fever in the world, said WHO South Pacific Communicable Disease Surveillance and Response Team leader doctor Jacob Kool.Kool said typhoid fever was difficult to diagnose and could be fatal in 10-20 percent of untreated patients.Recent studies showed that infants are commonly affected and are extremely vulnerable to the disease. Outbreaks occur regularly in areas with poor hygiene and sanitation including urban slums, he said.Kool said the only reliable symptom was prolonged fever and blood and stool culture are still the best available diagnostic tests but have a high rate of false negative results. He said therefore suspected typhoid cases should be treated regardless of the result of lab tests and ciprofloxacin was the recommended therapy for all age groups.Last year AusAID, WHO and UNICEF launched a typhoid fever vaccination campaign in Fiji.