Background: Child maltreatment is a global phenomenon with possible serious long-term consequences. The present study aimed to determine the relationship between childhood maltreatment and opiate dependency in older age. Methods: In this study, 212 opiate dependent individuals and 216 control subjects were selected consecutively. The data collection instrument was a questionnaire which consiste...

In condition based maintenance (CBM) optimization, the main optimization objectives include maximizing reliability and minimizing maintenance costs, which are often times conflicting to each other. In this work, we develop a physical programming based approach to deal with the multi-objective condition based maintenance optimization problem. Physical programming presents two major advantages: (...