The most common misuses of e-mail are fakemail and spam. Fakemail is the act of sending an e-mail that appears to be from another individual.

He turned into a side gallery that led into a grovy part of the garden, grading insensibly into the park proper.

Western blotting and immunofocussing would be an advantage.

Abstractly, additive number theory includes the study of abelian groups and commutative semigroups with an addition operation.