Restoring sight to the blind with cutting-edge brain implants
European researchers are striving to improve the technology that could one day help blind people see again.
Aug 22, 2023
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European researchers are striving to improve the technology that could one day help blind people see again.
Aug 22, 2023
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A man in the clinic has had two seizure-like episodes in his lifetime. Selim Benbadis, director of the University of South Florida's epilepsy program, and his resident take a history and complete an exam. They are fairly ...
Jun 20, 2023
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Have you ever made a great catch—like saving a phone from dropping into a toilet or catching an indoor cat from running outside? Those skills—the ability to grab a moving object—takes precise interactions within and ...
Jun 5, 2023
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Japan's population is rapidly aging. As a result, new challenges have emerged as an increased number of elderly people, many of whom live in isolated parts of the country, need medical and nursing care despite inadequate ...
Dec 13, 2022
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Regular screening is one of the most important ways to prevent colorectal cancer (colon and rectal).
Dec 8, 2022
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Esophageal intubation describes the unintended insertion of a breathing tube into the esophagus (the tube leading to the stomach) instead of the windpipe (trachea). If this is not promptly recognized it causes brain damage ...
Aug 18, 2022
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Experts such as pianists, athletes and surgeons acquire their skills through extensive practice. However, the neurophysiological and psychological mechanisms that underlie the problem of making mistakes due to psychological ...
Jan 6, 2022
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You're starting to tell that old story to a couple of new friends, and suddenly another person who was there says 'no, it wasn't like that!' Without a video recording to settle the dispute, it's pretty hard to know who has ...
Dec 17, 2021
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Virtually guided prolonged exposure therapy reduced post-traumatic stress disorder (PTSD) symptoms more effectively than prolonged exposure alone in a pilot study of 40 civilians and veterans. The study was conducted at the ...
Dec 15, 2021
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A novel robotically assisted surgical device for transvaginal hysterectomy has received marketing authorization approval, the U.S. Food and Drug Administration announced Monday.
Mar 3, 2021
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A video camera is a camera used for electronic motion picture acquisition, initially developed by the television industry but now common in other applications as well. The earliest video cameras were those of John Logie Baird, based on the electromechanical Nipkow disk and used by the BBC in experimental broadcasts through the 1930s. All-electronic designs based on the cathode ray tube, such as Vladimir Zworykin's Iconoscope and Philo T. Farnsworth's Image dissector, supplanted the Baird system by the 1940s and remained in wide use until the 1980s, when cameras based on solid-state image sensors such as CCDs (and later CMOS active pixel sensors) eliminated common problems with tube technologies such as burn-in and made digital video workflow practical.
Video cameras are used primarily in two modes. The first, characteristic of much early television, is what might be called a live broadcast, where the camera feeds real time images directly to a screen for immediate observation; in addition to live television production, such usage is characteristic of security, military/tactical, and industrial operations where surreptitious or remote viewing is required. The second is to have the images recorded to a storage device for archiving or further processing; for many years, videotape has been the primary format used for this purpose, but optical disc media, hard disk, and flash memory are all increasingly used. Recorded video is used not only in television and film production, but also surveillance and monitoring tasks where unattended recording of a situation is required for later analysis.
Modern video cameras have numerous designs and uses, not all of which resemble the early television cameras.
This text uses material from Wikipedia, licensed under CC BY-SA