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Reports on the results of a study on pilot situational awareness (SA) by the United States Air Force Armstrong Laboratory's Situation Awareness Integration Team (SAINT) in Texas. Definition of SA; Investigation of SA in air-to-air missions; Predictions of job performances; Predictive variables of SA; SA measurement issues.

The article reports on the test conducted by Waste Management Inc. on its Peterbilt 320 waste collection vehicles which were installed by hydraulic and electric hybrid systems in Fort Worth, Texas. The company anticipates that the systems will reduce greenhouse gas emissions as well as enhance operations through the utilization of fuel-efficient equipment and alternative fuels. In addition, the hybrid systems will offer severaal benefits to the environment.