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15 hours ago · Website. cliffrichard .org. Musical artist. Sir Cliff Richard OBE (born Harry Rodger Webb; 14 October 1940) is a British singer and actor. He has total sales of over 21.5 million singles in the United Kingdom and, as of 2012, was the third-top-selling artist in UK Singles Chart history, behind the Beatles and Elvis Presley.
15 hours ago · Adeline Virginia Woolf ( / wʊlf /; [2] née Stephen; 25 January 1882 – 28 March 1941) was an English writer. She is considered one of the most important modernist 20th-century authors. She pioneered the use of stream of consciousness as a narrative device. Woolf was born into an affluent household in South Kensington, London.
15 hours ago · Tokyo Disney Resort. Hong Kong Disneyland Resort. Shanghai Disney Resort. Disneyland. Disney California Adventure. Magic Kingdom. Epcot. Disney's Hollywood Studios. Disney's Animal Kingdom.
- Definition
- Signs and Symptoms
- Causes
- Pathophysiology
- Diagnosis
- Prevention
- Management
- Epidemiology
- Social and Cultural Aspects
- Research
Hearing loss is defined as diminished acuity to sounds which would otherwise be heard normally. The terms hearing impaired or hard of hearing are usually reserved for people who have relative inabi...Deafness is defined as a degree of loss such that a person is unable to understand speech, even in the presence of amplification. In profound deafness, even the highest intensity sounds produced by...Speech perception is another aspect of hearing which involves the perceived clarity of a word rather than the intensity of sound made by the word. In humans, this is usually measured with speech di...difficulty using the telephoneloss of sound localizationdifficulty understanding speech, especially of children and women whose voices are of a higher frequency.difficulty understanding speech in the presence of background noise (cocktail party effect)Hearing loss has multiple causes, including ageing, genetics, perinatal problems and acquired causes like noise and disease. For some kinds of hearing loss the cause may be classified as of unknown cause. There is a progressive loss of ability to hear high frequencies with aging known as presbycusis. For men, this can start as early as 25 and women...
Sound waves reach the outer ear and are conducted down the ear canal to the eardrum, causing it to vibrate. The vibrations are transferred by the 3 tiny ear bones of the middle ear to the fluid in the inner ear. The fluid moves hair cells (stereocilia), and their movement generates nerve impulses which are then taken to the brain by the cochlear ne...
Identification of a hearing loss is usually conducted by a general practitioner medical doctor, otolaryngologist, certified and licensed audiologist, school or industrial audiometrist, or other audiometric technician. Diagnosis of the cause of a hearing loss is carried out by a specialist physician (audiovestibular physician) or otorhinolaryngologi...
It is estimated that half of cases of hearing loss are preventable. About 60% of hearing loss in children under the age of 15 can be avoided. There are a number of effective preventative strategies, including: immunization against rubella to prevent congenital rubella syndrome, immunization against H. influenza and S. pneumoniae to reduce cases of ...
Management depends on the specific cause if known as well as the extent, type and configuration of the hearing loss. Sudden hearing loss due to an underlying nerve problem may be treated with corticosteroids. Most hearing loss, that result from age and noise, is progressive and irreversible, and there are currently no approved or recommended treatm...
Globally, hearing loss affects about 10% of the population to some degree. It caused moderate to severe disability in 124.2 million people as of 2004 (107.9 million of whom are in low and middle income countries). Of these 65 million acquired the condition during childhood. At birth ~3 per 1000 in developed countries and more than 6 per 1000 in dev...
People with extreme hearing loss may communicate through sign languages. Sign languages convey meaning through manual communication and body language instead of acoustically conveyed sound patterns. This involves the simultaneous combination of hand shapes, orientation and movement of the hands, arms or body, and facial expressions to express a spe...
Stem cell transplant and gene therapy
A 2005 study achieved successful regrowth of cochlea cells in guinea pigs. However, the regrowth of cochlear hair cells does not imply the restoration of hearing sensitivity, as the sensory cells may or may not make connections with neurons that carry the signals from hair cells to the brain. A 2008 study has shown that gene therapy targeting Atoh1can cause hair cell growth and attract neuronal processes in embryonic mice. Some hope that a similar treatment will one day ameliorate hearing los...
Audition
Besides research studies seeking to improve hearing, such as the ones listed above, research studies on the deaf have also been carried out in order to understand more about audition. Pijil and Shwarz (2005) conducted their study on the deaf who lost their hearing later in life and, hence, used cochlear implants to hear. They discovered further evidence for rate coding of pitch, a system that codes for information for frequencies by the rate that neurons fire in the auditory system, especiall...
15 hours ago · EFF leader Julius Malema stepped out in a pair of Christian Louboutin shoes with wife, Mantwa, for his Durban July outing on Saturday, 6 July 2024.
Jul 10, 2024 · 08 luglio 2024 15:25. Dal 10 al 21 luglio 2024 ad Ostia Antica presso il centro sportivo Aldobrandini (viale dei Romagnoli 656) si terrà la seconda edizione della Festa della Pizza e dello Street ...
