R

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Synonyms for R

a unit of radiation exposure

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(physics) the universal constant in the gas equation: pressure times volume = R times temperature

the length of a line segment between the center and circumference of a circle or sphere

References in periodicals archive ?
We never assign statistical significance to any particular estimate of the selection-rate constant, regardless of the magnitude of the difference in the competitors' apparent Malthusian parameters.
Because the Malthusian parameter is estimated empirically and therefore has an associated sampling error, we chose a minimum value of -0.
8 [degrees] C - less than 2 [degrees] C beyond the upper thermal limit for most lines - cell populations disappeared from culture more rapidly (average Malthusian parameter for all genotypes = -8.
To avoid biases that might arise from using different counting methods, the Malthusian parameters at any given temperature were calculated using only one type of data for all genotypes, the "day zero" points were always excluded from the regressions, and the same number of time points were used in the regressions for all genotypes.