Team members with the U.S. Army Medical Materiel Development Activity joined a joint service, multinational contingent this month to test the latest in military medical technology as part of the Army ...

Given a decreasing sequence {aⁿ} of nonnegative terms, we prove that there exist subsequences {nk } of {n} such that ∑k=1∞nk+1−nkank and ∑n=1∞an have the same convergence. In particular, ∑n=1∞an ...