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Edward L. Cochran
Dr. Edward Leo Cochran Jr. (born 1929) was a chemist known for his work with free radicals. In 1956 he moved from Orange, Connecticut to his hometown in Clarksville, Maryland and began his career at Applied Physics Laboratory. He also served as the second County Executive of Howard County, Maryland.
==Education and career==
Dr. Cochran graduated with a B.S. from Loyola University in 1949. He achieved a Masters in Chemistry from Duquesne University in 1951 with a thesis on Basicities of Various Hydrazones. He earned his PhD. from the University of Notre Dame with a thesis on the photolysis of the alkyl iodides in the liquid phase.〔(【引用サイトリンク】url=http://www.archives.nd.edu/Commencement/1954-06-06_Commencement.pdf )〕
Dr. Cochran worked for the Applied Physics Laboratory as a chemist for most of his career except for the period which he was County Executive of Howard County, Maryland. As chemist, Dr. Cochran was part of a team that carried out pioneering studies on the nature of free radicals, along with Chih-Kung Jen, Frank. J. Adrian, Vernon A. Bowers, Samuel Foner, and others, including the description of the Electron Spin Resonance spectra of simple free radicals trapped in solid matrices at cryogenic temperatures.〔http://jcp.aip.org/resource/1/jcpsa6/v40/i1/p213_s1?isAuthorized=no〕 Dozens of free radicals were described for the first time, including hydrogen, deuterium, nitrogen, methane, alkyl, formyl, ethynyl and vinyl, NH2 and ND2 and cyanogen and Methylene Imino.〔http://jcp.aip.org/resource/1/jcpsa6/v36/i7/p1938_s1〕〔http://jcp.aip.org/resource/1/jcpsa6/v32/i4/p963_s1〕〔http://adsabs.harvard.edu/abs/1958PhRv..112.1169J〕〔http://jcp.aip.org/resource/1/jcpsa6/v34/i4/p1161_s1〕〔http://jcp.aip.org/resource/1/jcpsa6/v40/i1/p213_s1〕〔http://prl.aps.org/abstract/PRL/v1/i3/p91_1〕〔http://jcp.aip.org/resource/1/jcpsa6/v36/i6/p1661_s1〕 Their paper on electron spin resonance proved to be one of the most frequently cited APL publications into the 21st century.〔http://prola.aps.org/abstract/PR/v112/i4/p1169_1〕〔W. Berl (1996). "Chih Kung Jen—A Remembrance". Johns Hopkins APL Technical Digest 17 (3): 330–332.〕 Following his term as County Executive, Dr. Cochran returned as spokesman for the Applied Physics Laboratory, and learned how to fly at Haysfield Airport. Cochran's family has remained active in Howard County. His son William is an active artist with works proposed for Symphony Woods, his daughter Courtney Watson became a school board member, County Councilperson, and ran for County Executive. His daughter Mary Catherine is a founding member of Preservation Howard County, winning the preservationist of the year award for defending and preserving the remaining county historical resources after significant losses to land development approved by the County.
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