The only letter I’ve ever sent to the New York Times was in the 1980s, objecting to the paper’s suddenly pestilent use of “draconian.” During Iran–Contra the complaint must have seemed trivial; the ...

Abstract: Genetically identical cell populations exposed to the same environment can exhibit considerable cell-to-cell variation in the levels of specific proteins. This variation or expression noise ...

Mathematicians use the logarithm to express the inverse function of exponentiation. That is, the logarithm of a given number p is the exponent to which another fixed number, the base b, must be raised ...