摘要 :
Sleep is a naturally-occurring circadian behavior essential to both physical and psychological functioning. Profound negative consequences can result from sleep disruption and deprivation. Military service members face unique chal...
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Sleep is a naturally-occurring circadian behavior essential to both physical and psychological functioning. Profound negative consequences can result from sleep disruption and deprivation. Military service members face unique challenges to restful sleep, especially during deployment. The consequences of sleep deprivation on the functioning of the individual and, in turn, on his or her military unit can be catastrophic. Following deployment, continued sleep disturbance can complicate reintegration back into family, social, and work activities. How military service members and their families become resilient and positively adapt to or recover from the stressors of repeated and dangerous deployments is of great importance to military leaders seeking to optimize the health of the military forces. The role of sleep in resiliency has not been widely considered; however research suggests that sleep may play an essential role in developing and supporting resiliency. A model for resilience patterned after Maslow's Hierarchy of Needs is proposed. Gaps in our understanding of the role of sleep in the health and resiliency of military personnel are discussed.
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摘要 :
This study examines the relationship of attachment style and hardiness to positive mood in active duty military personnel with recent deployment experiences (N=561). Soldiers high in hardiness show more secure attachments, and les...
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This study examines the relationship of attachment style and hardiness to positive mood in active duty military personnel with recent deployment experiences (N=561). Soldiers high in hardiness show more secure attachments, and less attachment-related anxiety and avoidance. Controlling for age and sex, hierarchical regressions found that hardiness and (low) attachment-related avoidance predict positive mood states. Further, the hardiness facets of commitment and control, but not challenge, predict positive mood. These results suggest that more secure attachment style and psychological hardiness serve as resilience resources for soldiers, leading to more positive mood states and well-being despite the stressors of military life.
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摘要 :
Workflows are complex operational processes that include security constraints restricting which users can perform which tasks. An improper user-task assignment may prevent the completion of the workflow, and deciding such an assig...
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Workflows are complex operational processes that include security constraints restricting which users can perform which tasks. An improper user-task assignment may prevent the completion of the workflow, and deciding such an assignment at runtime is known to be complex, especially when considering user unavailability (known as the resiliency problem). Therefore, design tools are required that allow fast evaluation of workflow resiliency. In this paper, we propose a methodology for workflow designers to assess the impact of the security policy on computing the resiliency of a workflow. Our approach relies on encoding a workflow into the probabilistic model-checker PRISM, allowing its resiliency to be evaluated by solving a Markov Decision Process. We observe and illustrate that adding or removing some constraints has a clear impact on the resiliency computation time, and we compute the set of security constraints that can be artificially added to a security policy in order to reduce the computation time while maintaining the resiliency.
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