heterogeneity


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heterogeneity

 [het″er-o-jĕ-ne´ĭ-te]
the state or quality of being heterogeneous. In genetics, the production of identical or similar phenotypes by different genetic mechanisms. A phenotype resembling a known phenotype but determined by a different genetic mechanism is called a genocopy or genetic mimic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

het·er·o·ge·ne·i·ty

(het'ĕr-ō-jĕ-nē'i-tē),
Heterogeneous state or quality.
Farlex Partner Medical Dictionary © Farlex 2012

het·er·o·ge·ne·i·ty

(het'ĕr-ō-jĕ-nē'i-tē)
Heterogeneous state or quality.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
If Hypotheses 2 and 3b are both supported, a moderated mediation effect can be inferred, that is, network heterogeneity will moderate the mediating effect of network relationship strength.
This study was limited by insufficient data for investigating the sources of heterogeneity, she said.
Other arguments, however, suggest that TMT heterogeneity may hinder performance (Ancona and Caldwell, 1992; O'Reilly et al, 1989; O'Reilly et al, 1993).
Ref: 'Intratumor Heterogeneity of the Estrogen Receptor and the Long-term Risk of Fatal Breast Cancer'.
In particular, the resource heterogeneity hypothesis considered an interaction between variability in patch quality and fruit distribution, where it was hypothesized that greater contrast between patches could promote selection for areas with a widespread fruit distribution by facilitating the assessment of patch quality.
Stone heterogeneity index as the standard deviation of Hounsfield units: A novel predictor for shock-wave lithotripsy outcomes in ureter calculi.
One possible conclusion from their findings is that the European Union should further integrate, because cultural heterogeneity is by no means as large as in other "national" unions.
Significant heterogeneity among included studies was observed; thus the random-effects model was used.
The results of meta-analysis show that there is no difference between two groups in the rate of pain relief (OR = 1.11; 95% CI, 0.74-1.69; P = 0.61; [I.sup.2] = 28% for heterogeneity), Therefore, using a fixed model, the meta-analysis of RCTs and OCS subgroup reveals the rate of pain relief was not statically different between two groups [RCTs ([I.sup.2] = 0%, OR = 1.39; 95% CI, 0.79-2.47; P = 0.25), OCS ([I.sup.2] = 48%, OR = 0.87; 95% CI, 0.47-1.59; P = 0.64)] (Figure 3).
This is particularly relevant to settings of essential heterogeneity where treatment effects are heterogeneous across patients and treatment choices are related to this heterogeneity (Heckman, Urzua, and Vytlacil 2006; Basu et al.
The current guidelines also address intratumoral heterogeneity using immunohistochemistry as a platform to identify and target heterogeneously staining "hot-spot" areas forFISH analysis.