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JERUSALEM, Nov. 1 (Xinhua) -- Israeli researchers at Tel Aviv University developed a computer chip that could recuperate loss body movement if placed in the cerebellum, opening the doors to treatment of brain damage, researchers told Xinhua on Tuesday.The computer chip, wired to a man-made segment of a cerebellum, was attached to a rodent's skull that had lost the ability to blink. After the artificial cerebellum was implanted, the rodent was once again able to blink.The chip, connected to the rat's brain, works by reading sensory information from the body and then communicating it to the cerebellum, the area of the brain that allows movement coordination, through electrodes."The chip itself imitates a small part of the cerebellum, a very tiny part of it," said Prof. Matti Mintz of TAU's Department of Psychology."We took a small part of the cerebellum and studied it and created the computer chip that mimics the damaged area," he said.However, more complicated movements, like walking, are still at least one decade away, Mintz added."We still did not test it on humans because we need to know the area the chip will mimic before installing it, which requires extensive research. But we are now developing a chip that will do a sequence of simple movements," he pointed out.When fully developed for humans, it can be used to help patients who suffer brain genetic diseases like Parkinson, or had strokes that caused brain damage.

WASHINGTON, Nov. 21 (Xinhua) -- The use of acupuncture for children is common and acupuncture is generally safe for children when performed by "appropriately trained practitioners," Canadian researchers reported Monday in online journal Pediatrics.Researchers at the University of Alberta looked at data from 37 studies of needle acupuncture, spanning 60 years, on children from birth to age 17, and assessed the association between needle acupuncture and various levels of adverse events in children. They found that of 279 adverse events identified, 253 were mild, one was moderate and 25 were serious.Serious side effects included bleeding, infections, and heart and lung problems. One child may have contracted HIV. But the researchers said the serious side effects were related to substandard conditions from the care provider, rather than acupuncture's technique itself. They concluded that in trained hands, pediatric acupuncture is safe.Acupuncture has been around for thousands of years, and traditional Chinese theory suggests needle placement helps balance the body's energy flow, called "qi". Acupuncture is sometimes used to treat headaches, migraines, back and joint pains, cramps, and chemotherapy-induced nausea. Estimates show 150,000 U.S. children undergo acupuncture each year.

SANTO DOMINGO, Sept. 30 (Xinhua) -- Haitian health authorities on Friday said the number of deaths caused by cholera increased to 6,435 in the Caribbean country since October 2010.The Haitian Health Ministry said the number of people infected with cholera almost reached half a million, although the ministry repeated the epidemic was decreasing.The report said 455,727 people had been treated due to cholera, and 242,205 had to be hospitalized.The western province of Artibonite suffered the plague most with 1,196 deaths. The southwest province of Nippes registered the smallest death toll of 181.Meanwhile, in the Haitian capital Port-au-Prince, 221 people have been killed since October 2010 when the epidemic first broke out in central Haiti.The epidemic is supposedly due to the spill of dregs from a Nepalese camp, which is part of the UN Stabilization Mission in Haiti (MINUSTAH).The Dominican Republic, a country neighboring the island country Haiti to the east, has also been suffering the disease since November 2010, which has killed at least 135 people there.

BEIJING, Oct. 13 (Xinhuanet) -- Tyrannosaurus rex dinosaur, the giant prehistoric predator, was even bigger and heavier than it was estimated previously, a new study found.The finding was contained in a study published Wednesday in the scientific journal PLoS ONE.Using three-dimension scanning and computer modeling, researchers analyzed five skeleton fossils of T. rex dinosaur, including "Sue", the largest and most complete T. rex specimen ever found.The analysis tipped the scale of "Sue" at 9 ton, some 30 percent more than it was expected."At their fastest, in their teenage years, they were putting on 11 pounds or 5 kilograms a day," said John Hutchinson of the Royal Veterinary College in London, who co-led the study.The larger body mass indicated the better agility and the stronger lower-leg muscles of the ancient monster, said the researcher."Sue" could have a top speed of about 10-25 miles per hour when it ran on the Great Plains of North America 67 million years ago, Hutchinson suggested.

BEIJING, Sept. 30 (Xinhuanet) -- Tobacco companies concealed the knowledge of radioactive substance in cigarettes from public for over four decades, a new study revealed.The revelation was made by a research team from the University of California, Los Angeles, published on Thursday in the online edition of the U.S. medical journal Nicotine and Tobacco Research.The researchers analyzed 27 timeworn documents and discovered that tobacco companies had knew the existence of polonium-210, a hazardous radioactive substance, in the tobacco since 1959.The companies studied polonium-210 throughout the 1960s, and concealed their findings about the carcinogenic potential of the radioactive substance.Hrayr Karagueuzian, the study's lead author, said the tobacco companies' deception surprised him.According to the revelation, the companies had knew the "cancerous growths" in the lungs of smokers, and even calculated how much radiation a regular smoker would inhale over 20 years.Karagueuzian and his team conducted again the study recorded in the tobacco documents and found that the radiation in cigarettes would cause up to 138 deaths for every 1,000 smokers over a period of 25 years.However, tobacco manufacturer denied that they had concealed the facts from the public.David Sutton, spokesman of Philip Morris, the largest U.S. tobacco company, said the polonium-210 was a "naturally occurring element in the air" and had been widely discussed by the public health community for years.