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Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
A recruiting poster for the “True Sons of Freedom” encouraged African Americans to enlist. In fact,
The genetic code (as written in RNA)
A square matrix P is called a permutation matrix if each row and column of P contains exactly ...