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Kathryn Chenault has also had an active role for several years in supporting the Harlem Children 's Zone , a non-profit , community-based organization working to enhance the quality of education and life for children and their families in Harlem . News of its actions spread , leading to similar commitments by other schools across the region and the U.S. Tufts is among 95 New England colleges and universities that have formally committed to supporting specific greenhouse gas reduction targets and is a leader among schools supporting government actions on climate change , and in making campus activities and operations more environmentally sustainable . Adding proper security measures to an Ajax application can be a strong differentiator for a product . For the past 15 years , she has devoted her energies to building and supporting Providence St. Mel , a model K-through-12 college preparatory inner-city school in Chicago . With that in mind , SearchSecurity.com , in collaboration with security expert Michael Cobb , has produced an Nmap Technical Guide , detailing how this free tool can help make your organization more secure . Are there supporting materials that can help to drive the point home ? At first embraced only by cutting edge firms , these technologies are now standard on virtually every trading desk in the U.S. If electrical conductors are attached to the positive and negative sides , forming an electrical circuit , the electrons can be captured in the form of an electric current — that is , electricity .