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  2. Generation time - Wikipedia

    en.wikipedia.org/wiki/Generation_time

    One may then define the generation time as the time it takes for the population to increase by a factor of . For example, in microbiology , a population of cells undergoing exponential growth by mitosis replaces each cell by two daughter cells, so that R 0 = 2 {\displaystyle \textstyle R_{0}=2} and T {\displaystyle T} is the population doubling ...

  3. Genetic distance - Wikipedia

    en.wikipedia.org/wiki/Genetic_distance

    This distance has the nice property that if the rate of genetic change (amino acid substitution) is constant per year or generation then Nei's standard genetic distance (D) increases in proportion to divergence time. This measure assumes that genetic differences are caused by mutation and genetic drift.

  4. Next-generation matrix - Wikipedia

    en.wikipedia.org/wiki/Next-generation_matrix

    The method to compute the basic reproduction ratio using the next-generation matrix is given by Diekmann et al. (1990) [3] and van den Driessche and Watmough (2002). [4] To calculate the basic reproduction number by using a next-generation matrix, the whole population is divided into n {\displaystyle n} compartments in which there are m < n ...

  5. Dixon's Q test - Wikipedia

    en.wikipedia.org/wiki/Dixon's_Q_test

    However, at 95% confidence, Q = 0.455 < 0.466 = Q table 0.167 is not considered an outlier. McBane [ 1 ] notes: Dixon provided related tests intended to search for more than one outlier, but they are much less frequently used than the r 10 or Q version that is intended to eliminate a single outlier.

  6. Genealogical numbering systems - Wikipedia

    en.wikipedia.org/wiki/Genealogical_numbering_systems

    The system begins with 1. The oldest child becomes 11, the next child is 12, and so on. The oldest child of 11 is 111, the next 112, and so on. The system allows one to derive an ancestor's relationship based on their number. For example, 621 is the first child of 62, who is the second child of 6, who is the sixth child of his parents.

  7. Clever or cruel? 'Generation Gap' offers toddler the choice ...

    www.aol.com/entertainment/clever-cruel...

    Generation Gap pairs up children with older adults to answer pop culture-related questions from both past and present generations. On Thursday's episode, it was 13-year-old Olivia and her grandpa ...

  8. Generation of primes - Wikipedia

    en.wikipedia.org/wiki/Generation_of_primes

    A prime sieve or prime number sieve is a fast type of algorithm for finding primes. There are many prime sieves. The simple sieve of Eratosthenes (250s BCE), the sieve of Sundaram (1934), the still faster but more complicated sieve of Atkin [1] (2003), sieve of Pritchard (1979), and various wheel sieves [2] are most common.

  9. Doppler shift compensation - Wikipedia

    en.wikipedia.org/wiki/Doppler_shift_compensation

    This keeps the returning echo in the same frequency range as the normal echolocation call. This dynamic frequency modulation is called the Doppler shift compensation (DSC), and was discovered by Hans Schnitzler in 1968. [1] CF bats employ the DSC mechanism to maintain the echo frequency within a narrow frequency range. [2]