Imagine a future technology that would provide instant access to the world's knowledge and artificial intelligence, simply by thinking about a specific topic or question. Communications, education, work, and the world as ...
Apr 12, 2019
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A recent study from the University of Nebraska-Lincoln has given new meaning to the concept of brain power by suggesting that physical strength might stem as much from exercising the nervous system as the muscles it controls.
Jul 10, 2017
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Scientists have developed a compound that successfully promotes rebuilding of the protective sheath around nerve cells that is damaged in conditions such as multiple sclerosis.
Sep 6, 2019
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A heart arrhythmia is an irregular heartbeat. It occurs when the electrical signals that tell the heart when to beat and pump blood aren't functioning properly. Some heart arrhythmias can be harmless and just bothersome, ...
Dec 8, 2021
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A team of researchers affiliated with several institutions in Australia and the U.K. has taught a small mass of human brain cells to play the video game Pong. Their paper is available on the bioRxiv preprint server.
A team of doctors affiliated with the University of Western Ontario in Canada has documented a case in which a terminal patient removed from life support continued to experience brain wave activity for approximately 10 minutes ...
(Medical Xpress) -- A new pharmaceutical program that many Britons might find literally hard to swallow, has been announced. Pharmacy chain Lloydspharmacy has partnered with American technology firm Proteus Biomedical to ...
Scientists at the Gladstone Institutes have for the first time transformed skin cells—with a single genetic factor—into cells that develop on their own into an interconnected, functional network of brain cells. ...
Jun 7, 2012
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A new neurostimulator developed by engineers at the University of California, Berkeley, can listen to and stimulate electric current in the brain at the same time, potentially delivering fine-tuned treatments to patients ...
Dec 31, 2018
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UConn bioengineers successfully regrew cartilage in a rabbit's knee, a promising hop toward healing joints in humans, they report in the 12 January issue of Science Translational Medicine.
Jan 12, 2022
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In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time-varying or spatial-varying quantity.
In the physical world, any quantity measurable through time or over space can be taken as a signal. Within a complex society, any set of human information or machine data can also be taken as a signal. Such information or machine data (for example, the dots on a screen, the ink making up text on a paper page, or the words now flowing into the reader's mind) must all be part of systems existing in the physical world – either living or non-living.
Despite the complexity of such systems, their outputs and inputs can often be represented as simple quantities measurable through time or across space. In the latter half of the 20th century, electrical engineering itself separated into several disciplines, specializing in the design and analysis of physical signals and systems, on the one hand, and in the functional behavior and conceptual structure of the complex human and machine systems, on the other. These engineering disciplines have led the way in the design, study, and implementation of systems that take advantage of signals as simple measurable quantities in order to facilitate the transmission, storage, and manipulation of information.
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