пороговые уровни
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[http://www.iks-media.ru/glossary/index.html?glossid=2400324]
Англо-русский словарь нормативно-технической терминологии. academic.ru. 2015.
Threshold Limit Value — The Threshold Limit Value (TLV) of a chemical substance is a level to which it is believed a worker can be exposed day after day for a working lifetime without adverse health effects. Strictly speaking, TLV is a reserved term of the American… … Wikipedia
Threshold of pain — The threshold of pain is the point at which pain begins to be felt. It is an entirely subjective phenomenon. The intensity at which a stimulus (e.g., heat, pressure) begins to evoke pain is the threshold intensity.[1] So, if a hotplate on a… … Wikipedia
Threshold limit value — The threshold limit value (TLV) of a chemical substance is a level to which it is believed a worker can be exposed day after day for a working lifetime without adverse health effects. Strictly speaking, TLV is a reserved term of the American… … Wikipedia
Linear no-threshold model — The linear no threshold model (LNT) is a method for predicting the long term, biological damage caused by ionizing radiation and is based on the assumption that the risk is directly proportional to the dose at all dose levels. In other words, the … Wikipedia
Absolute threshold of hearing — The absolute threshold of hearing (ATH) is the minimum sound level of a pure tone that an average ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the… … Wikipedia
Poverty threshold — For the term as defined in the United States, see Poverty thresholds (United States). Percentage of population living on less than $1.25 per day. UN estimates 2000 2007. The poverty threshold, or poverty line, is the minimum level of income… … Wikipedia
Absolute threshold — In neuroscience and psychophysics, an absolute threshold is the smallest detectable level of a stimulus. For example, in an experiment on sound detention, researchers may present a sound with varying levels of volume. The smallest level that a… … Wikipedia
Dark adaptation threshold — (DAT) is a vision test that measures the adjustment of the eye occurring under low levels of illumination. When light enters the eye, it ultimately reaches the rods and cones, which are two types of cells in the retina. Rods handle vision in low… … Wikipedia
Sound levels for nonlinear (decibel) and linear (intensity) scales — ▪ Table Sound levels for nonlinear (decibel) and linear (intensity) scales decibels intensity* type of sound 130 10 artillery fire at close proximity (threshold of pain) 120 1 amplified rock music; near jet engine 110 10–1 loud orchestral… … Universalium
nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… … Universalium
Pure tone audiometry — (PTA) is the key hearing test used to identify hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss. Thus, providing the basis for diagnosis and management. PTA is a subjective … Wikipedia
