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Cybernetics News
Hip replacement patients with metal-on-metal implants (both the socket and hip ball are metal) pass metal ions to their infants during pregnancy, according to a new study presented today at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons.
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 | Researchers have successfully reconstructed 3-D hand motions from brain signals recorded in a non-invasive way, according to a study in the March 3 issue of the Journal of Neuroscience. This finding uses a technique that may open new doors for portable brain-computer interface systems. Such a non-invasive system could potentially operate a robotic arm or motorized wheelchair -- a huge advance for people with disabilities or paralysis. ...> Full Article |
Current body protheses do not last more than 10-15 years. After this time, the operation has to be repeated in order to change prothesis. It is usually problematic as, in general, it is elderly people that use the procedure. Researcher Nere Garmendia, based in the Basque city of Donostia-San Sebastian, has just published her Ph.D., a thesis which may well mean the first step to solving this problem.
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 | An artificial foot that recycles energy otherwise wasted in between steps could make it easier for amputees to walk, its developers say. ...> Full Article |
 | A "metal foam" that has a similar elasticity to bone could mean a new generation of biomedical implants that would avoid bone rejection that often results from more rigid implant materials, such as titanium. Researchers at North Carolina State University have developed the metal foam, which is even lighter than solid aluminum and can be made of 100 percent steel or a combination of steel and aluminum. ...> Full Article |
 | Electrodes on the surface of the brain show that using imagined movements to control a computer cursor can generate larger-than-life brain signals after less than 10 minutes of training. ...> Full Article |
 | Scientists in Cambridge have made a significant step towards developing a so-called "artificial pancreas" system for managing type 1 diabetes in children. The team has developed and successfully tested a new algorithm, providing a stepping stone to home testing for the artificial pancreas. ...> Full Article |
 | Researchers at North Carolina State University have developed a "smart coating" that helps surgical implants bond more closely with bone and ward off infection. ...> Full Article |
A tiny eye implant that clears scar tissue and delivers progenitor cells designed to replace photoreceptors damaged by disease passes early tests.
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A new study reported in Investigative Ophthalmology & Visual Science found that UV-blocking contact lenses can reduce or eliminate the effects of the sun's harmful UV radiation.
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 | A team of Florida State University researchers will use a five-year, $1.3 million grant from the National Institutes of Health to develop a way to measure levels of the trace metal zinc in the human body. ...> Full Article |
Attaching cartilage to plates made of the resorbable material polydioxanone appears to facilitate corrective surgery on the nasal septum, the thin cartilage separating the two airways, according to a report in the January/February issue of Archives of Facial Plastic Surgery, one of the JAMA/Archives journals.
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Children with cochlear implants in both ears appear to have difficulty controlling the loudness and pitch of their voices, but these measures improve over time, according to a report in the January issue of Archives of Otolaryngology -- Head & Neck Surgery, one of the JAMA/Archives journals.
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 | Surgeons from UC Davis Medical Center have demonstrated that artificial muscles can restore the ability of patients with facial paralysis to blink, a development that could benefit the thousands of people each year who no longer are able to close their eyelids due to combat-related injuries, stroke, nerve injury or facial surgery. ...> Full Article |
Even simple insects can generate quite different movement patterns with their six legs. The animal uses various gaits depending on whether it crawls uphill or downhill, slowly or fast. Scientists from Gottingen have now developed a walking robot, which can flexibly and autonomously switch between different gaits. The success of their solution lies in its simplicity: a small and simple network with just a few connections can create very diverse movement patterns. To this end, the robot uses a mechanism for "chaos control."
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