Useful english dictionary. 2012.
Population Services International — (PSI):PSI is a nonprofit organization based in Washington, D.C. that harnesses the vitality of the private sector to address the health problems of low income andvulnerable populations in more than 60 developing countries. With programs in… … Wikipedia
POPULATION — THE JEWISH POPULATION Growth by Aliyah In 1882 the Jewish population of Ereẓ Israel numbered some 24,000, roughly 5% of the total, and about 0.3% of the world Jewish population. Since then there has been an almost continuous flow of aliyah, which … Encyclopedia of Judaism
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 — Methodological Uncertainties Because of the great difficulties in ascertaining human population data in general, and Jewish data in particular, especially in ancient and medieval times, a word of caution is even more necessary here than in most… … Encyclopedia of Judaism
balanced load — A term describing a decrease in the overall fitness of a population due to the component genes that are maintained in the population because they add to fitness in different combinations, i.e., heterozygotes … Dictionary of invertebrate zoology
balanced polymorphism — A polymorphism maintained in the same breeding population by a selective superiority of the heterozygotes over either type of homozygotes; see transient polymorphism … Dictionary of invertebrate zoology
balanced lethal system — A system for maintaining a recessive lethal allele at each of two loci on the same pair of chromosomes. In a closed population with no crossing over between the loci, only the double heterozygotes for the lethal mutations survive … Glossary of Biotechnology
balanced polymorphism — Two or more phenotypes maintained in the same breeding population … Glossary of Biotechnology
Optimum population — The optimum population is the size of a population that is optimal. There are, however, various opinions on what optimal means in this usage, resulting in various end targets for it,[1] but estimations usually take ecological sustainability and… … Wikipedia
Center of population — with a mean distance of convert|5000|km|sigfig=1|sp=us. Its antipodal point is correspondingly the farthest point from everyone on earth, and is located in the South Pacific near 15000|km|sp=us.In demographics, the center of population of a… … Wikipedia
