skip content
Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as

Blackboard, Inc.

Blackboard solutions make use of extensive collaboration and interactivity to fully engage learners with activities and the ability to incorporate a wide range of multimedia content to facilitate a continuous and social learning experience through heighten learner engagement. Blackboard solutions work independently or as a seamlessly integrated extension of existing learning environments to enhance learning. Learn how many government and military organizations alike achieve better learning with Blackboard. For more information visit: