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The study examines the cognitive demands of collision avoidance under a range of maritime scenarios. Operators used a PC-based radar simulator to navigate set courses over 100 6-min trials varying in collision threat and traffic density. Corrective maneuvers were made through the application of standard navigation rules and by using two decision aids(More)
The randomized controlled trial (RCT) is the recommended means of evaluating health care effectiveness and cost-effectiveness. Whilst representing a 'gold-standard' in health services research, RCT evidence on the clinical and economic desirability of services and treatments is often absent. Where RCT evidence is lacking, or where it is infeasible to(More)
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