PURPOSE The purpose of this study was to construct and test a structural equation modeling on burnout of clinical nurses based on CS-CF model. METHODS A survey using a structured questionnaire was conducted with 557 clinical nurses. Data were analyzed using structural equation modeling. RESULTS The modified hypothetical model yielded the following χ(2)=289.70, p<.001, RMSEA=.09, GFI=.93, TL...

The Digit Symbol Substitution Test (DSST) has been used to study various effects, like aging and fatigue. Multiple cognitive and perceptual processes, like associative memory and visual search, are prominently utilized in the DSST. Understanding how these processes contribute to execution of tasks like the DSST is important to human factors research, as moderators like age and fatigue may diffe...

Tim Halverson is a cognitive scientist with an interest in human-computer interaction, cognitive modeling, eye movements, and fatigue; he is a post-doctoral research associate in the Performance and Learning Model Team of the Air Force Research Laboratory. Anthony J. Hornof is a computer scientist with an interest in human-computer interaction, cognitive modeling, visual search, and eye trackin...

Bone damage removal and callus formation in response to fatigue loading are essential to prevent fractures. Periostin (Postn) is a matricellular protein that mediates adaptive response of cortical bone to loading. Whether and how periostin influences damage and the injury response to fatigue remains unknown. We investigated the skeletal response of Postn(-/-) and Postn(+/+) mice after fatigue s...

CAUSAL MODELING OF PRENATAL HEALTH BEHAVIORS BASED ON SOCIAL CAPITAL AND COGNITIVE ATTENTIONAL SYNDROME WITH THE MEDIATION MENTAL FATIGUE PERCEPTION IN PREGNANT WOMEN

Functional skeletal adaptation is thought to be a local phenomenon controlled by osteoctyes. However, the nervous system also may have regulatory effects on adaptation. The aim of this study was to determine the effects of loading of a single bone on adaptation of other appendicular long bones and whether these responses were neuronally regulated. Young male Sprague-Dawley rats were used. The r...

Future combat systems necessarily focus on lightweight, highly mobile and transportable armored vehicles. Lightweight composite integral armor systems are being developed to meet these needs. The goal of this paper is to centrally document he myriad design requirements for composite integral armors that serve multZunctiona1 roles including ballistic, structural, shock, electromagnetic, and fire...

PURPOSE Several guidelines on the treatment of cancer-related fatigue recommend optimizing treatment of accompanying symptoms. However, evidence for this recommendation from randomized clinical trials is lacking. We investigated whether monitoring and protocolized treatment of physical symptoms alleviates fatigue. PATIENTS AND METHODS In all, 152 fatigued patients with advanced cancer were ra...

The U.S. Department of Defense (DOD) has long pursued applied research concerning fatigue in sustained and continuous military operations. In 1996, Hursh developed a simple homeostatic fatigue model and programmed the model into an actigraph to give a continuous indication of performance. Based on this initial work, the Army conducted a study of 1 wk of restricted sleep in 66 subjects with mult...