- study population
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The group of individuals in a study. In a clinical trial, the participants make up the study population. The study population might, for example, consist of all children under 2 years of age in a community.
Wikipedia foundation.
Wikipedia foundation.
Population control — is the practice of limiting population increase, usually by reducing the birth rate. The practice has sometimes been voluntary, as a response to poverty, environmental concerns, or out of religious ideology, but in some times and places it has… … Wikipedia
population — populational, adj. populationless, adj. /pop yeuh lay sheuhn/, n. 1. the total number of persons inhabiting a country, city, or any district or area. 2. the body of inhabitants of a place: The population of the city opposes the addition of… … Universalium
population ecology — Introduction study of the processes that affect the distribution and abundance of animal and plant populations. A population is a subset of individuals of one species that occupies a particular geographic area and, in sexually… … Universalium
Population ecology — is a major sub field of ecology that deals with the dynamics of species populations and how these populations interact with the environment.cite book | last =Odum | first =Eugene P. | authorlink =Eugene Odum | title =Fundamentals of Ecology |… … Wikipedia
Population Matters — Founder(s) David Willey Founded 1991 Location United Kingdom Key people … Wikipedia
Population ageing — or population aging (see English spelling differences) occurs when the median age of a country or region rises. This happens because of rising life expectancy or declining birth rates. Excepting 18 countries termed demographic outliers by the… … Wikipedia
Population stratification — is the presence of a systematic difference in allele frequencies between subpopulations in a population possible due to different ancestry. Population stratification is also referred to as population structure. Causes of population stratification … Wikipedia
Population transfer — is the movement of a large group of people from one region to another by state policy or international authority, most frequently on the basis of ethnicity or religion. Banishment or exile is a similar process, but is forcibly applied to… … Wikipedia
Population dynamics — is the branch of life sciences that studies short term and long term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way… … Wikipedia
Population viability analysis — (PVA) is a species specific method of risk assessment frequently used in conservation biology. It is traditionally defined as the process that determines the probability that a population will go extinct within a given number of years. More… … Wikipedia