1953, Proceedings of the international course in paedo-audiology, Groeningen University, page 16:
Ectropy was then put over and against entropy. The first to point out a possible connection between processes of life and ectropy was no less a person than von Helmholtz.
1972, Edward Fröhlich Haskell (volume editor and chapter author), Full Circle: The Moral Force of Unified Science, Gordon and Breach, →ISBN (10), →ISBN (13), chapter ii: “Generalization of the Structure of Mendeleev’s Periodic Table”, page 44:
In less traditional terms, the increase of disorder is called increase of entropy and the increase of order is called increase of ectropy: […]
1979, Journal of Asian-Pacific & World Perspectives III–IV, page 15:
Ectropic nations and organizations maximize the ratio of levels of energy received to work produced, and are able to utilize and absorb higher levels of ectropy.
2004, Watam Press, Applications and Algorithms, Volume 11, page 638:
Hence, for an isolated large-scale dynamical system the entropy increases if and only if the ectropy decreases.
2012, Z. Dong, “Self-stability analysis of MHTGRs: A shifted-ectropy based approach” in Nuclear Engineering and Design CCXLVIII, pages 137–148 [link]
