©2019 Nigel Thurlow, Professor John Turner, Brian Rivera. Offered for license under the Attribution license of Creative Commons, accessible at http://creativecommons.org/licenses/by/4.0/legalcode and also described in summary form at http://creativecommons.org/licenses/by/4.0/. By utilizing this Site and any information presented you acknowledge and agree that you have read and agree to be bound by the terms of the Attribution license of Creative Commons.