heterogeneity


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.

heterogeneity

[¦hed·ə·rə·jə′nē·əd·ē]
(biology)
The condition or state of being different in kind or nature.
(science and technology)
The condition of a sample of matter that is composed of particles or aggregates of different substances of dissimilar composition.
References in periodicals archive ?
Results show that 'new project' work tended on average to have greater employment heterogeneity and a shorter tenure than demonstrated with maintenance & support work.
Ethnic heterogeneity increases the number of interest groups because the interests of each ethnic group may be different from, and in conflict with, those of other groups.
First, it is apparent that tumor heterogeneity poses a substantial problem to the use of ctDNA focused on tumor-specific mutations as a tool to predict early relapse or to monitor the emergence of drug resistance, if the focus is on somatic events that may not be ubiquitous throughout the tumor mass.
If one is unaware of this heterogeneity across women, and one estimates a single hazard for all women, the estimated hazard will not be a simple average of the constant hazards across groups of women with different levels of fecundity, but it will fall as a function of time; as time goes on, more highly fecund women have experienced the event of birth (and have been eliminated from the risk set), so the population will increasingly be made up of minimally fecund women.
To achieve that goal, Pareto's writings on heterogeneity and social equilibrium as reviewed, and the secondary literature from the 1930s and 1940s on the use of statistical tools in Pareto's social and economic equilibrium, is highlighted.
Consequently, theoretical development should focus on the causes of heterogeneity in family firms so as to better understand their behavior and performance.
Two heterogeneity structures among herds were simulated: herds with heterogeneity for all parameters (phenotype and genetic variance and phenotype and genetic average) and herds without heterogeneity for the above parameters.
Following on the resounding success of last years international symposium on cancer heterogeneity held in Verona, Italy, this congress will bring together experts in the fields of basic and clinical oncology, as well as molecular pathology, to discuss current issues in cancer treatment, limitations of diagnostic tools, and to explore technological solutions to resolve cancer heterogeneity within the context of blood and tissue biopsies.
Stone heterogeneity index as the standard deviation of Hounsfield units: A novel predictor for shock-wave lithotripsy outcomes in ureter calculi.
Nevertheless, the heterogeneity among European might not be that high, at the end of the day.
The author has organized the eleven co-authored chapters that make up the main body of his text in two parts devoted to firm heterogeneity and sectoral heterogeneity.
There is a high level of heterogeneity between the studies, and more homogenous research is necessary to validate our conclusion.