Robert Rosen (June 27, 1934, Brooklyn, New York - December 28, 1998, Rochester, New York) was an American theoretical biologist and, later in life, a Professor of Biophysics at Dalhousie University until he retired. His main interest was developing a specific definition of complexity and an ensuing theoretical framework, now called "Rosennean Complexity". Wikipedia
The definitive Wikipedia entry for Robert Rosen. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Robert_Rosen
"I intend to show that the machine metaphor in science isn't just a little bit wrong, it is entirely wrong and must be discarded." Robert Rosen "The trouble with you, Rosen, is you're always trying to answer questions that nobody wants to ASK!" Anonymo www.rosen-enterprises.com
Robert Rosen, a student of Nicholas Rashevsky and a product of the Mathematical Biology program at the University of Chicago started one line of research that grappled with the question in the late 1950's. www.people.vcu.edu/~mikuleck/PPRISS3.html