Ergophobia a hospital in New Jersey as early as in the 1860s. Ergophobia is a corollary of Occupational Burnout, which is thought to be the result of long-term unresolvable job stress. The term “burnout” did not come to be used with regularity until the 1970s in the United States. Freudenberger, for example, used it to describe the phenomenon of physical and emotional exhaustion with associated negative attitudes arising from intense interactions when working with people. Later studies on ergophobia and occupational burnout build upon the existing conception of Freudenberger’s research and found the phenomenon was quite common in a variety of
Proof that π is irrational In 1761, Lambert proved that is irrational by first showing that this continued fraction expansion holds: Then Lambert proved that if "x" is non-zero and rational then this expression must be irrational. Since tan(/4) = 1, it follows that /4 is irrational and therefore that is irrational. A simplification of Lambert's proof is given below. This proof uses the characterization of as the smallest positive number whose half is a zero of the cosine function and it actually proves that is irrational. As in many proofs of irrationality, the argument proceeds by reductio ad absurdum. Consider the sequences ("A") and