absolute intensity threshold
31Just-noticeable difference — In psychophysics, a just noticeable difference, customarily abbreviated with lowercase letters as jnd, is the smallest detectable difference between a starting and secondary level of a particular sensory stimulus.[1] It is also known as the… …
32Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
33Introduction to quantum mechanics — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Quantum mechanics. Quantum mechanics …
34Defining equation (physics) — For common nomenclature of base quantities used in this article, see Physical quantity. For 4 vector modifications used in relativity, see Four vector. Very often defining equations are in the form of a constitutive equation, since parameters of… …
35Just noticeable difference — In psychophysics, a just noticeable difference, customarily abbreviated with lowercase letters as jnd, is the smallest difference in a specified modality of sensory input that is detectable by a human being. It is also known as the difference… …
36Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and …
37Pure 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 …
38ZIONISM — This article is arranged according to the following outline: the word and its meaning forerunners ḤIBBAT ZION ROOTS OF ḤIBBAT ZION background to the emergence of the movement the beginnings of the movement PINSKER S AUTOEMANCIPATION settlement… …
39Poverty — Street children sleeping in Mulberry Street – Jacob Riis photo New York, United States (1890) Poverty is the state of one who lacks a certain amount of material possessions or money.[1] Absolute poverty or destitution is inability to afford …
40law — 1. A principle or rule. 2. A statement of fact detailing a sequence or relation of phenomena that is invariable under given conditions. SEE ALSO: principle, rule, theorem. [A.S. lagu] Alexander l. states that a jerky nystagmus becomes worse when… …
