| IDF | inverse document frequency |
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| IRV | inferior radicular vein; inspiratory reserve volume; inverse ratio ventilation |
| IPCR | Inverse PCR |
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| IPCR | Inverse polymerase chain reaction |
| IRV | Inverse ratio ventilation |
| PC-IRV | pressure controlled inverse ratio ventilation |
| inverse | 1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; opposed to direct. 2. <botany> Inverted; having a position or mode of attachment the reverse of that which is usual. 3. <mathematics> Opposite in nature and effect; said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division. The symbol of an inverse operation is the symbol of the direct operation with -1 as an index. Thus sin -1 x means the arc whose sine is x. <geometry> Inverse figures, two points lying on a line drawn from the center of a fixed circle or sphere, and so related that the product of their distances from the center of the circle or sphere is equal to the square of the radius. <mathematics> Inverse, or Reciprocal, ratio, the ratio of the reciprocals of two quantities. Inverse, or Reciprocal, proportion, an equality between a direct ratio and a reciprocal ratio; thus, 4: 2:: 1/3: 1/6, or 4: 2:: 3: 6, inversely. Origin: L. Inversus, p. P. Of invertere: cf. F. Inverse. See Invert. Source: Websters Dictionary (01 Mar 1998) |
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| inverse anaphylaxis | Anaphylactic shock in an animal (e.g., guinea pig) whose tissues contain Forssman antigen, resulting from an intravenous injection of serum that contains Forssman's antibody. (05 Mar 2000) |
| inverse density dependence | <epidemiology> See density dependence. (05 Dec 1998) |
| inverse ocular bobbing | Slow downward eye movement followed by delayed quick upward return. (05 Mar 2000) |
| inverse square law | As applied to point sources, the intensity of radiation diminishes in proportion to the square of the distance from the source. (05 Mar 2000) |
| inverse symmetry | Correspondence of the right or left side of an asymmetrical individual to the left or right side of another. (05 Mar 2000) |
| inverse syntropy | A situation in which the presence of one disease tends to decrease the possibility of another. (05 Mar 2000) |
| inversed jaw-winking syndrome | <syndrome> When there are supranuclear lesions of the trigeminal nerve, touching the cornea may produce a brisk movement of the mandible to the opposite side. (05 Mar 2000) |
| inverse-square law |
A relation between physical quantities of the form: x is proportional to 1/y 2 , where y is most often a distance, and x is often a force or flux. An example of the inverse square law is the decrease of radiative flux with distance from a point source, as is often used to approximate radiation reaching the earth from the sun.
Ãâó: amsglossary.allenpress.com/glossary/browse
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| inverse square law |
A law of physics that states that light from a point source fall off inversely to the square of the distance. As a example, if a light is 10 feet from your subject and you move it to 20 feet, you'll only have 1/4 the lighting intensity. If you move the light to 40 feet, it will now have only 1/16th the intensity.
Ãâó: www.vistek.ca/glossary/default.asp
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| inverse square law |
An equation that relates the intensity of a light source to the illumination it produces at a given distance. Light diminishes over distance in accordance with the Inverse square law, which states that doubling the flash-to-subject distance reduces the light falling on the subject to one-quarter.
Ãâó: photographytips.com/page.cfm/2029
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| inverse-square law |
The law that a field follows if its strength decreases with the square of the distance. Fields that follow the inverse square law rapidly decrease in strength as the distance increases, but never quite reach zero.
Ãâó: astronomy.nju.edu.cn/astron/AT3/GLOSS_I.HTM
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| inverse square law |
Intensity of radiation decreases as the inverse square of distance traveled.
Ãâó: www.ametsoc.org/amsedu/WES/glossary.html
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| inverse | (math) one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2 |
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| inverse | something inverted in sequence or character or effect |
| inverse | reversed (turned backward) in order or nature or effect |
| inverse | (mathematics) varying in a manner opposite to that of another quantity |
| inverse | inversely related |
| inverse | the function obtained by expressing the dependent variable of one function as the independent variable of another |
| inverse | in an inverse or contrary manner |
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