Hearing impairment
hideA hearing impairment or deafness is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors, loss of hearing can happen to any organism that perceives sound. "Hearing impaired" is often used to refer to those who are deaf, although the term is viewed negatively by members of Deaf culture, who prefer the terms "Deaf" and "Hard of Hearing".
Sound waves vary in amplitude and in frequency. Amplitude is the sound wave's peak pressure variation. Frequency is the number of cycles per second of a sinusoidal component of a sound wave. Loss of the ability to detect some frequencies, or to detect low-amplitude sounds that an organism naturally detects, is a hearing impairment.
For more information about Hearing impairment, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with hearing loss
Elusive protein points to mechanism behind hearing loss
Medicine & Health / Neuroscience
Dec 08, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- A serendipitous discovery of deaf zebra fish larvae has helped narrow down the function of an elusive protein necessary for hearing and balance. The work, led by Rockefeller University’s A. ...
Search results for hearing loss
Research finds the mum-bub bond may reduce neglect
7 hours ago |
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(PhysOrg.com) -- UQ researcher Dr Lane Strathearn sees strengthening the bond between mother and baby as a possible way of reducing childhood neglect.
Sticks and stones break bones, but new study may prevent it
7 hours ago |
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The best way to prevent a fracture is to stop bones from reaching the point where they are prone to breaking, but understanding the process of how bones form and mature has been challenging. Now researchers at the University ...
Low-density lipoprotein receptor reduces damage in Alzheimer's brain
Medicine & Health / Neuroscience
9 hours ago |
5 / 5 (1) |
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The low-density lipoprotein receptor (LDLR) has received a lot of attention because of its connection with coronary heart disease and atherosclerosis, but now it appears as if it may have a beneficial influence in degenerative ...
Older dental fillings contain form of mercury unlikely to be toxic
10 hours ago |
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A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal ...
High-fat low-carb diets could mean significant heart risk
12 hours ago |
3.5 / 5 (2) |
10
New scientific research has shown that low-carbohydrate high-fat diets, made popular by the likes of the Atkins diet, do not achieve more weight loss than low-fat high-carbohydrate diets. Worryingly, the research, lead by ...
What's the best hangover cure? Truth be told, there isn't one
14 hours ago |
2.5 / 5 (2) |
10
(PhysOrg.com) -- With the holiday party season at hand, UNC's Dr. James C. Garbutt offers these tips about how to enjoy a few drinks responsibly -- while sparing yourself and those around you from the potentially ...
A special kind of flight training
Dec 08, 2009 |
4 / 5 (2) |
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(PhysOrg.com) -- A new generation of flight simulators will attempt to make air traffic safer.
Gallium nitride transistor could replace silicon
Dec 08, 2009 |
4.6 / 5 (25) |
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(PhysOrg.com) -- A Cornell researcher has created an extremely efficient transistor made from gallium nitride, which may soon replace silicon as king of semiconductors for power applications.
Panasonic Develops A Gallium Nitride (GaN) Inverter IC for Motor Drive with High Efficiency
Dec 08, 2009 |
5 / 5 (2) |
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Panasonic today announced the development of a Gallium Nitride (GaN) -based monolithic inverter integrated circuit (IC) for motor drive. The integrated six GaN-based transistors can be independently driven ...
How fake sites trick search engines to hit the top
Dec 08, 2009 |
3 / 5 (1) |
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(AP) -- Even search engines can get suckered by Internet scams. With a little sleight of hand, con artists can dupe them into giving top billing to fraudulent Web sites that prey on consumers, making unwitting ...
List of search results for hearing loss
