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]

Farlex Partner Medical Dictionary © Farlex 2012

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]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive

Rarefaction and extrapolation with Hill numbers: A framework for sampling and estimation in species diversity studies.

Diversidad y formas de vida de una comunidad lenosa-herbacea en los complejos rocosos de cuarcita del Quadrilatero Ferrifero brasileno

Explicit calculation of the rarefaction diversity measurement and the determination of sufficient sample size.

Vertically stratified arthropod diversity in a Florida upland hardwood forest

Impaired skin capillary recruitment in essential hypertension is caused by both functional and structural capillary rarefaction. Hypertension 2001; 38: 238-242, doi: 10.1161/01.HYP.38.2.238.

Penile microvascular endothelial function in hypertensive patients: effects of acute type 5 phosphodiesterase inhibition

Caption: Figure 1: Rarefaction curves and OTU Venn analysis in different samples.

Soil Microbial Community Structure and Diversity around the Aging Oil Sludge in Yellow River Delta as Determined by High-Throughput Sequencing

Notice that system (1) can be written by [Y.sub.t] + [(uY).sub.x] = 0 [19]; i.e., it is the Temple type; we can see that the shock curves coincide with the rarefaction curves in the phase plane (u,[rho]) (Figure 1).

The Perturbed Riemann Problem for the Aw-Rascle Model with Modified Chaplygin Gas Pressure

Interpolating SADs in the four habitats, with sample-based rarefaction, we observed a significant increase in bird richness from dry to wet seasons (t-test = -9.59, p<0.002) (Figure 4).

Avian Community Structure as a Function of Season, Habitat Type, and Disturbance, in Mole National Park, Northern Region (Ghana)

Caption: Figure 7: Rarefaction curves generated from 16S amplicons sampled from floodwaters from vegetative and reproductive rice stages.

Bacterial Community of the Rice Floodwater Using Cultivation-Independent Approaches

Besides the constant states, the smooth solutions are composed of the backward rarefaction waves

A Deposition Model: Riemann Problem and Flux-Function Limits of Solutions

By contrast, aldosterone levels (p=0.034), PWV (p<0.001), BMI (p=0.029), and UAE (p=0.039) were significantly higher among TH compared to NT, whereas capillary rarefaction, though more pronounced in TH compared to NT (37% vs.

Association of Urinary Sodium Excretion with Vascular Damage: A Local Kidney Effect, Rather Than a Marker of Generalized Vascular Impairment

Multiple rarefaction curves assembled from each sample's Shannon diversity index reached a plateau at approximately 5000 sequences suggesting that the sequencing depth was sufficient to capture the full scope of microbial diversity [37].

Analysis of Bacterial Diversity in Different Heavy Oil Wells of a Reservoir in South Oman with Alkaline pH

The sheer force of these surfaces, incisive and vital in the almost sculptural way they unfurl, urges viewers to delve deep into the mechanisms of painting, to confront the stratification and concentration, accumulation and rarefaction, and clashes and distensions of material.

Jason Martin: MIMMO SCOGNAMIGLIO ARTECONTEMPORANEA

The key issues for Mena economies are the strengthening of the US dollar, the possible rarefaction of the currency outside the United States following the repatriation of war chests by US businesses and the rise in interest rates.

$875bn Mena reserves a valid reason to work together, says expert