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What we're talking about here is electrotactile stimulation for sensory augmentation or substitution, an area of study that involves using encoded electric current to represent sensory information -- information that a person cannot receive through the traditional channel -- and applying that current to the skin, which sends the information to the brain. The brain then learns to interpret that sensory information as if it were being sent through the traditional channel for such data. In the 1960s and '70s, this process was the subject of ground-breaking research in sensory substitution at the Smith-Kettlewell Institute led by Paul Bach-y-Rita, MD, Professor of Orthopedics and Rehabilitation and Biomedical Engineering at the University of Wisconsin, Madison. Now it's the basis for Wicab's BrainPort technology (Dr. Bach-y-Rita is also Chief Scientist and Chairman of the Board of Wicab). Eyeglasses are a typical example of sensory augmentation. Braille is a typical example of sensory substitution -- in this case, you're using one sense, touch, to take in information normally intended for another sense, vision.|If Russia invades Ukraine, it will be “the most consequential thing that has happened in the world since World War II,” President Biden has said. What brought the two countries to this critical point? Why is Ukraine important to global politics? What can be done to avoid war? The Well turned to Graeme Robertson, a UNC-Chapel Hill professor of political science, for background on the countries’ relationship since Ukraine gained independence in 1991 after the Union of Soviet Socialist Republics dissolved. Robertson researches and publishes on dissent and protest in Russia and Ukraine and is The Graduate School’s Harold J. Glass USAF Faculty Mentor/Graduate Fellow Distinguished Term Professor. He directs Carolina’s Center for Slavic, Eurasian and East European Studies. How did the Russia-Ukraine conflict begin? Gorbachev. George H.W.W. Bush around the end of the Soviet Union. A polite fiction was established in which the U.S. NATO beyond the countries already in NATO. Just how do these systems show promise for the medical field? So you have good reason to wonder about a digital doctor's bedside manner. But look at it this way: No matter how caring and compassionate that flesh-and-blood physician is, she may get things wrong an alarming amount of the time. Studies of autopsies, in fact, have shown that doctors seriously misdiagnose fatal illnesses in about one in five cases. The unsettling fact is that human healers miss signs and make mistakes, and that's where computers can be of help. In the late 1990s, a British girl named Isabel Maude nearly died after her doctors diagnosed a flesh-eating bacteria infection as chicken pox. Her father Jason was so shaken by the experience that he decided to change his career. He left his job in corporate finance to found a new company, Isabel Healthcare, to help improve diagnoses. The company developed a program called Isabel, which allows doctors to type in a patient's symptoms. elon musk

















































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