rarefaction


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rarefaction

 [rar″ĕ-fak´shun]
the condition of being or becoming less dense.

rar·e·fac·tion

(rār'ĕ-fak'shŭn),
1. The process of becoming light or less dense; the condition of being light; opposed to condensation.
2. In vascular physiology, the process that results in a reduction in the density of capillaries in a tissue.
[L. rarus, thin, scanty + facio, to make]

rarefaction

/rar·e·fac·tion/ (rar″ĭ-fak´shun) condition of being or becoming less dense.

rarefaction

[rer′əfak′shən]
reductions of density of a medium at a location in the medium accompanying the cyclic pressure reductions during the passage of a sound wave.

rar·e·fac·tion

(rār'ĕ-fak'shŭn)
1. The process of becoming light or less dense.
2. The condition of being light; opposed to condensation.
[L. rarus, thin, scanty + facio, to make]

rarefaction

expansion; becoming less dense

rarefaction

the condition of being or becoming less dense.
References in periodicals archive ?
Individual-based rarefaction curve showing aphid species accumulation from the combining of samples from PA and NY (solid line) and the 95% confidence intervals for the curve (dashed lines).
Rarefaction data were calculated to determine the point where additional sequencing would produce no statistically significant increase in the number of families present in the sample.
The confidence intervals of the rarefaction curves did not overlap (Fig.
The absorption mechanism of mineral wool is based on the viscous effects in the air contained inside the interconnecting pores which separate the fibres; the solid structure can generally be regarded as ideally rigid and stationary, and the acoustic absorption as produced by the viscosity of the air, which is subjected to a process of alternate compression and rarefaction as a sound wave passes through it (Zwikker and Kosten 1949; Attenborough 1993).
Rarefaction indicated an absence of significant difference among a values since only one collection was clearly outside the 95 percent confidence intervals around the rarefaction curve.
There may be structural signs in the kidney reaction field such as a lacuna or rarefaction (looser fibre density).
En effet, dans un contexte considerablement contraint par la rarefaction des ressources publiques et face a la necessite de trouver de nouvelles sources de financement pour pourvoir a la prestation des services publics, l'etat est amene a s'interroger sur l'efficacite de ses depenses.
turtles captured) and the number of species observed, known as the rarefaction curve (Gotelli and Colwell 2001).
EstimateS calculates randomized species accumulation curves (also known as sample-based rarefaction curves) and computes a variety of species richness indicators.
The rarefaction process as part of the search for beauty is portrayed in the relationship between Vittorio and Sonia, but also in the relationship between director and actor, as Michela Cescon lost 15 kilograms in the role of Sonia.