President of Argentina
Under the 1994 constitutional amendment, the President serves for four years, with a possibility of immediate reelection for one more term. However, unlike the President of the United States, in Argentina, a person may be reelected again after serving for two terms and staying out of office for the following term. So after serving for two consecutive periods, the president is not allowed to run for a third consecutive one, but may return for the two following elections and so on. There is no limit for a person to be a candidate if he or she does not win the elections.
President of the American Association for the Advancement of Science
AAAS presidents serve a one-year term, beginning in mid-February at the close of the AAAS Annual Meeting. In accordance with the convention used by the AAAS, presidents are referenced based on the year in which they left office. The presidential term is preceded by a one-year term as president-elect, and followed by a one-year term as chair of the AAAS Board of Directors.