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  2. Noise-induced hearing loss - Wikipedia

    en.wikipedia.org/wiki/Noise-induced_hearing_loss

    PTS (Permanent Threshold Shift) is a permanent change of the hearing threshold (the intensity necessary for one to detect a sound) following an event, which will never recover. PTS is measured in decibels.

  3. Auditory fatigue - Wikipedia

    en.wikipedia.org/wiki/Auditory_fatigue

    The damage can become permanent (permanent threshold shift, PTS) if sufficient recovery time is not allowed before continued sound exposure. [1] When the hearing loss is rooted from a traumatic occurrence, it may be classified as noise-induced hearing loss , or NIHL.

  4. Acoustic trauma - Wikipedia

    en.wikipedia.org/wiki/Acoustic_trauma

    Acoustic trauma may result in sensorineural HL (SNHL) that is either temporary (temporary threshold shift, TTS) or permanent (permanent threshold shift, PTS). A TTS will resolve with time, while the time frame for hearing recovery is unique in every case, any SNHL that persists beyond eight weeks after injury is most likely permanent and should ...

  5. Sensorineural hearing loss - Wikipedia

    en.wikipedia.org/wiki/Sensorineural_hearing_loss

    NIHL can be either permanent or temporary, called a threshold shift. Unsafe levels of noise can be as little as 70 dB (about twice as loud as normal conversation) if there is prolonged (24-hour) or continuous exposure. 125 dB (a loud rock concert is ~120 dB) is the pain level; sounds above this level cause instant and permanent ear damage.

  6. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Noise-induced hearing loss is a permanent shift in pure-tone thresholds, resulting in sensorineural hearing loss. The severity of a threshold shift is dependent on duration and severity of noise exposure. Noise-induced threshold shifts are seen as a notch on an audiogram from 3000 to 6000 Hz, but most often at 4000 Hz. [16]

  7. Trump tax cuts, if made permanent, stand to benefit highest ...

    www.aol.com/trump-tax-cuts-made-permanent...

    At the very top of Republicans’ 100-day agenda with President-elect Donald Trump in the White House and GOP lawmakers in a majority is the plan to renew some $4 trillion in expiring tax cuts.

  8. Tariffs, inflation, and retailers: How Trump's potential ...

    www.aol.com/major-us-retailers-reacting-proposed...

    Larger U.S. retailers have more ability to “mitigate and shift their sourcing,” Gold said. He added those shifts can't happen overnight. Smaller mom-and-pop stores and medium-sized retailers ...

  9. Listener fatigue - Wikipedia

    en.wikipedia.org/wiki/Listener_fatigue

    This shift is usually temporary but may become permanent. A natural physiological reaction to these threshold shifts is vasoconstriction , which will reduce the amount of blood reaching the hair cells of the organ of Corti in the cochlea.