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Episodes of population loss and cultural change, including the famous Classic Collapse, punctuated the long course of Maya civilization. In many cases, these downturns in the fortunes of individual sites and entire regions included significant environmental components such as droughts or anthropogenic environmental degradation. Some afflicted areas remained(More)
The Department of Defense (DOD) is transforming its way of acquiring new systems and capabilities. Effective test and evaluation is becoming more difficult as individual platforms become part of complex systems of systems (SoS) that must interoperate on a joint battlefield. The Joint Test and Evaluation Methodology (JTEM) program is tasked to develop and(More)
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