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Binaural Stethoscope
The stethoscope is a medical device for auscultation, or listening to internal sounds of an animal or human body. It typically has a small disc-shaped resonator that is placed against the skin, with either one or two tubes connected to two earpieces. A stethoscope can be used to listen to the sounds made by the heart, lungs or intestines, as well as blood flow in arteries and veins. In combination with a manual sphygmomanometer, it is commonly used when measuring blood pressure. It was invented in 1816 by René Laennec and the binaural version by Arthur Leared in 1851. Less commonly, "mechanic's stethoscopes", equipped with rod shaped chestpieces, are used to listen to internal sounds made by machines (for example, sounds and vibrations emitted by worn ball bearings), such as diagnosing a malfunctioning automobile engine by listening to the sounds of its internal parts. Stethoscopes can also be used to check scientific vacuum chambers for leaks and for various other small-scale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Device
A medical device is any device intended to be used for medical purposes. Significant potential for hazards are inherent when using a device for medical purposes and thus medical devices must be proved safe and effective with reasonable assurance before regulating governments allow marketing of the device in their country. As a general rule, as the associated risk of the device increases the amount of testing required to establish safety and efficacy also increases. Further, as associated risk increases the potential benefit to the patient must also increase. Discovery of what would be considered a medical device by modern standards dates as far back as in Baluchistan where Neolithic dentists used flint-tipped drills and bowstrings. Study of Archaeology, archeology and Roman medical literature also indicate that many types of medical devices were in widespread use during the time of ancient Rome. In the United States it was not until the Federal Food, Drug, and Cosmetic Act ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlantic, North Atlantic, the French West Indies, and List of islands of France, many islands in Oceania and the Indian Ocean, giving it Exclusive economic zone of France, one of the largest discontiguous exclusive economic zones in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its Regions of France, eighteen integral regions—five of which are overseas—span a combined area of and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacalyn Duffin
Jacalyn M. Duffin (born 1950) is a Canadian medical historian and hematologist. She held the Hannah Chair, History of Medicine at Queen's University from 1988 until 2017. Formerly, she was president of the American Association for the History of Medicine and Canadian Society for the History of Medicine. From 1993 to 1995 she was Associate Dean Undergraduate Studies and Education at Queen's University. She is most well known for her testimony which led to the canonization of Marie-Marguerite d'Youville. As of 2010, she has published eight books (as author and editor) on the history of medicine and has written numerous articles on various subjects relating to the history of medicine, miracles, and hematology. In 2019, Duffin was inducted into the Canadian Medical Hall of Fame. Biography Education Duffin completed her MD from the University of Toronto. Soon after this, she moved to Paris, where she elected to study hematology and René Laennec at the Sorbonne. She completed her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binaural Fusion
Binaural fusion or binaural integration is a cognitive process that involves the combination of different auditory system, auditory information presented Sound localization, binaurally, or to each ear. In humans, this process is essential in understanding speech in noisy and reverberent environments. The process of binaural fusion is important for perceiving the sound localization, locations of sound sources, especially along the horizontal or azimuth direction, and it is important for sound segregation. Sound segregation refers to the ability to identify acoustic components from one or more sound sources. The binaural auditory system is highly dynamic and capable of rapidly adjusting tuning properties depending on the context in which sounds are heard. Each eardrum moves one-dimensionally; the auditory brain analyzes and compares movements of the two eardrums to extract physical cues and perceive auditory objects. When stimulation from a sound reaches the ear, the eardrum deflects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Localization
Sound localization is a listener's ability to identify the location or origin of a detected sound in direction and distance. The sound localization mechanisms of the mammalian auditory system have been extensively studied. The auditory system uses several cues for sound source localization, including time difference and level difference (or intensity difference) between the ears, and spectral information. Other animals, such as birds and reptiles, also use them but they may use them differently, and some also have localization cues which are absent in the human auditory system, such as the effects of ear movements. Animals with the ability to localize sound have a clear evolutionary advantage. How sound reaches the brain Sound is the perceptual result of mechanical vibrations traveling through a medium such as air or water. Through the mechanisms of compression and rarefaction, sound waves travel through the air, bounce off the Pinna (anatomy), pinna and concha of the exter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auditory Processing
The auditory cortex is the part of the temporal lobe that processes auditory information in humans and many other vertebrates. It is a part of the auditory system, performing basic and higher functions in hearing, such as possible relations to language switching.Cf. Pickles, James O. (2012). ''An Introduction to the Physiology of Hearing'' (4th ed.). Bingley, UK: Emerald Group Publishing Limited, p. 238. It is located bilaterally, roughly at the upper sides of the temporal lobes – in humans, curving down and onto the medial surface, on the superior temporal plane, within the lateral sulcus and comprising parts of the transverse temporal gyri, and the superior temporal gyrus, including the planum polare and planum temporale (roughly Brodmann areas 41 and 42, and partially 22). The auditory cortex takes part in the spectrotemporal, meaning involving time and frequency, analysis of the inputs passed on from the ear. The cortex then filters and passes on the information to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somerville Scott Alison
Somerville may refer to: Places Australia *Somerville, Victoria, a town ** Somerville railway station * Somerville, Western Australia, a suburb of Kalgoorlie, Australia New Zealand * Somerville, New Zealand, a suburb of Manukau City, New Zealand United States * Somerville, Alabama, a town * Somerville (Kenton, Delaware), a historic house * Somerville, Indiana, a town * Somerville, Maine, a town *Somerville, Massachusetts, a city * Somerville, New Jersey, a borough ** Somerville Circle, a traffic circle near Somerville, New Jersey * Somerville, Ohio, a census-designated place * Somerville, Queens, a neighborhood located in Arverne, Queens in New York City * Somerville, Tennessee, a town * Somerville, Texas, a city ** Somerville Lake, a reservoir near Somerville, Texas Other uses * Somerville (surname) * Somerville (crater), a crater in the eastern part of the Moon * ''Somerville'' (video game), a 2022 game from Jumpship *Somerville College, Oxford, a constituent college ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golding Bird
Golding Bird (9 December 1814 – 27 October 1854) was a British medical doctor and a Fellow of the Royal College of Physicians. He became a great authority on kidney diseases and published a comprehensive paper on urinary deposits in 1844. He was also notable for his work in related sciences, especially the medical uses of electricity and electrochemistry. From 1836, he lectured at Guy's Hospital, a well-known teaching hospital in London and now part of King's College London, and published a popular textbook on science for medical students called ''Elements of Natural Philosophy''. Having developed an interest in chemistry while still a child, largely through self-study, Bird was far enough advanced to deliver lectures to his fellow pupils at school. He later applied this knowledge to medicine and did much research on the chemistry of urine and of kidney stones. In 1842, he was the first to describe oxaluria, a condition which leads to the formation of a particul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediate
Mediate may refer to: * "Mediate" (song), by INXS * Domenic Mediate (born 1982), professional soccer player *Rocco Mediate (born 1962), professional golfer *A common misspelling of the website Mediaite Mediaite is an American news website focusing on politics and the media. Founded by Dan Abrams, it is part of the Abrams Media Network. Mediaite saw its largest audience ever in 2023 with a total of 701 million pageviews for the year. That grow ... See also * Mediation (other) {{disambiguation, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
-scope
English suffixes {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ear Trumpet
An ear trumpet is a tubular or funnel-shaped device which collects sound waves and leads them into the ear. They are used as hearing aids, resulting in a strengthening of the sound energy impact to the eardrum and thus improved hearing for a deaf or hard-of-hearing individual. Ear trumpets were made of sheet metal, silver, wood, snail shells or animal horns. They have largely been replaced in wealthier areas of the world by modern hearing aid technology that is much smaller and less obtrusive, albeit more expensive. A sound trumpet does not "amplify" sound. It takes the sound power received over a large area and concentrates it into a smaller area. The received sound is louder, but no power has been created in the process. History The use of ear trumpets for the partially deaf dates back to the 17th century.Howard, Alexander. "Hearing Aids: Smaller and Smarter." New York Times, November 26, 1998. The earliest description of an ear trumpet was given by the French Jesuit priest an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
