Aging of US Presidents

Alternative Formulas to Predict the Greatness of US. Presidents: Personological, Situational, and Zeitgeist Factors

Formulas to predict presidential greatness on the Maranell index were constructed for 29 presidents from Washington to L. Johnson. When a Zeitgeist variable, derived from the historian A. M. Schlesinger, Jr.'s (1986) work on the public purpose-private interest cycle of American political history, served as the initial predictor and stepwise selection was made from a personological pool and then...

The Influence of War and Party System Aging on the Ranking of Presidents

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Presidents, Vice Presidents, and Death: Closing the Constitution's Succession Gap

Underwriting the presidents.

The United States has had 43 presidents. We examined whether they survive significantly longer or shorter than their contemporaries. We found that survival was better for presidents elected in the 1789-1841 and 1933-2001 periods (SMRs of 0.7 and 0.6, respectively), but worse for those elected in 1845-1929 (SMR = 2.9). We also found increased mortality during the years lived in office (SMR = 1.4...

Presidents who value science.

www.sciencemag.org SCIENCE VOL 323 13 FEBRUARY 2009 843 COVER An image of Mare Moscoviense on the lunar farside, taken by the Terrain Camera aboard the SELENE (Kaguya) spacecraft on 17 January 2008. Crater frequency distributions derived from such images yield ages of about 2.5 billion years for several volcanic deposits in this mare, indicating that volcanism on the lunar farside lasted about ...