The Kinetics of Scientific Progress and Scientist Obsolescence | PDA Journal of Pharmaceutical
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Obsolescence may be defined as the decline over time in validity or utility of information. To
investigate pharmacokinetic literature obscolescence, two discrete methodologies were …

Semiconductor physics literature is studied in order to investigate recent hypotheses relating
obsolescence to the growth in periodical literature and the growth in the number of …

The pace of biomedical innovation is important because it determines the rate of progress in
medicine and allied disciplines. A review of the history of medical advances reveals that the …

A linear increase law of optimum age of scientific creativity is proposed. The author has
analysed the optimum age of major scientific discoveries (or inventions) by the least square …

Several human characteristics that influence scientific research performance, including set
goals, mental and physical abilities, education, and experience, may vary considerably …

Despite a very large number of studies on the aging and obsolescence of scientific literature,
no study has yet measured, over a very long time period, the changes in the rates at which …

Most of this audience is long past their period of greatest scientific productivity, but to make
us a little more comfortable, we can accept it as probable that most of those here are at the …

In order to measure the changes of research activity with time, 43 subjects such as insulin,
penicillin and nylon are selected in the field of chemistry including those awarded the Nobel …

In order to explain the much increased citation frequency of recently published articles in
respect to the normal exponential decay of older articles, the scientific information diffusion …