(14) Is the sleeper aware of all of his bodily reactions to noise? Video Google: A Text Retrieval Approach to Object Matching in Videos. A conductive loss is usually associated with the outer or middle ear. Taking into account that 4000 Hz is the frequency most sensitive to hearing loss and that losses of less than 5 dB are generally not considered noticeable or significant, EPA has identified an 8-hour exposure level not exceeding 75 dB in order to protect.
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The acoustic reflex (tightening of the ossicular chain due to contraction of the muscles in the middle ear in response to high level sound) protects hearing from noise exposure to a very limited degree. One of the simplest ranking functions is computed by summing the tfidf for each query term; many more sophisticated ranking functions are variants of this simple model. The true intermittency correction is probably within the range 0 to. One study that examined admissions of residents near London's Heathrow Airport to a psychiatric hospital suggests that the prevalence of mental problems was higher in the population nearest the airport (90). (68) Young children, on the other hand, appear to be less affected by noise in all stages of sleet). Avoidance of noisy areas, limiting exposure to short periods of time, or ensuring intermittent rather than continuous exposure will mitigate the risk of hearing loss from noise. (86) The study cautions, however, that there may uva new sat essay be other conditions besides noise responsible for these differences. (20) 2-7 Table of Contents Return to NPC Library Return to NPC Home Page Does noise act synergistically with drugs on hearing?