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Tajima's D is a population genetic test statistic created by and named after the Japanese researcher Fumio Tajima. [1] Tajima's D is computed as the difference between two measures of genetic diversity: the mean number of pairwise differences and the number of segregating sites, each scaled so that they are expected to be the same in a neutrally evolving population of constant size.
Fumio Tajima was born in Ōkawa, in Japan's Fukuoka prefecture, in 1951. [1] [2] He graduated from high school in 1970, completed his undergraduate degree at Kyushu University in 1976, and received a Master's degree from the same institution in 1978. [3]
Fay and Wu's H is a statistical test created by and named after two researchers Justin Fay and Chung-I Wu. [1] The purpose of the test is to distinguish between a DNA sequence evolving randomly ("neutrally") and one evolving under positive selection.
George Stevens' footage has been entered at the National Film Registry as "an essential visual record of World War II and a staple of documentary films" . Scope and content description in the National Archives Catalog : On conditions found in Nazi concentration camps in Germany and Belgium by advancing Allied Armies during World War II.
Tajima's D is based on the expectation that S = theta * x where x is the sum of 1/i for i from 1 to N. Thus, we turn this into a method to estimate theta by noting that theta = E(S)/x. The current version suggests that S/x part is a "normalized" version of segregating sites, and this leads to a mistake in the calculation of D in the example.
George Campbell Scott was born on a kitchen table October 18, 1927—the younger of two siblings—in the modest Wise, Virginia, home of his parents, Gerald Dewey Scott (1902–1988) and Helena Agnes (née Slemp; 1904–1935). His mother was the first cousin, once removed, of Republican Congressman C. Bascom Slemp. [5]
At the beginning of World War II McGhee was a member of the staff of the Office of Production Management and a member of the War Production Board.Commissioned into the U.S. Navy, McGhee served as a naval air intelligence officer on the staff of Army Air Force General Curtis E. LeMay, for which he was awarded the Legion of Merit.
George Clement Dacey (1921–2010) was an American scientist and inventor who played a key role in the history of the transistor. Biography He was ...