Dry-EEG Manifestations of Acute and Insidious Hypoxia During Simulated Flight.

Recently, portable dry electroencephalographs (dry-EEGs) have indexed cognitive workload, fatigue, and drowsiness in operational environments. Using this technology this project assessed whether significant changes in brainwave frequency power occurred in response to hypoxic exposures as experienced in military aviation. There were 60 (30 women, 30 men) student Naval Aviators or Flight Officers who were exposed to an intense (acute) high-altitude (25,000 ft) normobaric hypoxic exposure, and 20 min later, more gradual (insidious) normobaric hypoxic exposure up to 20,000 ft while flying a fixed-wing flight simulation and monitored with a dry-EEG system.

Correlation of objectively measured light exposure and serum vitamin D in men aged over 60 years.

Diminished vitamin D is common among older individuals. Sunlight contributes more to vitamin D synthesis than diet or supplementation. This study examined associations between objectively measured light exposure, vitamin D serum levels, and bone biomarkers in 100 men aged over 60 years.

Digital Family History Data Mining with Neural Networks: A Pilot Study.

Following the passage of the Health Information Technology for Economic and Clinical Health (HITECH) Act of 2009, electronic health records were widely adopted by eligible physicians and hospitals in the United States. Stage 2 meaningful use menu objectives include a digital family history but no stipulation as to how that information should be used. A variety of data mining techniques now exist for these data, which include artificial neural networks (ANNs) for supervised or unsupervised machine learning.

Optimism predicts positive health in repatriated prisoners of war.

"Positive health," defined as a state beyond the mere absence of disease, was used as a model to examine factors for enhancing health despite extreme trauma. The study examined the United States' longest detained American prisoners of war, those held in Vietnam in the 1960s through early 1970s. Positive health was measured using a physical and a psychological composite score for each individual, based on 9 physical and 9 psychological variables.

Physical activity, sleep, and C-reactive protein as markers of positive health in resilient older men.

This study explored whether physical activity and sleep, combined with the biomarker C-reactive protein, indexed positive health in older men. Many were former prisoners of war, with most remaining psychologically resilient and free of any psychiatric diagnoses. Activity and sleep were recorded through actigraphy in 120 veterans (86 resilient and 34 nonresilient) for 7 days.

Digital family histories for data mining.

As we move closer to ubiquitous electronic health records (EHRs), genetic, familial, and clinical information will need to be incorporated into EHRs as structured data that can be used for data mining and clinical decision support. While the Human Genome Project has produced new and exciting genomic data, the cost to sequence the human personal genome is high, and significant controversies regarding how to interpret genomic data exist. Many experts feel that the family history is a surrogate marker for genetic information and should be part of any paper-based or electronic health record.

Sleep and resilience: a longitudinal 37-year follow-up study of Vietnam repatriated prisoners of war.

This study examined sleep histories associated with resilience after trauma defined as a continuous lack of psychiatric illness across 37 years. Data were drawn from a 37-year follow-up examination of the effects of the Vietnam prisoner of war (POW) experience. The Robert E.

Optimism predicts resilience in repatriated prisoners of war: a 37-year longitudinal study.

Resilience, exhibiting intact psychological functioning despite exposure to trauma, is one perspective as to why some people who are exposed to trauma do not develop symptoms. This study examines the prisoner of war experience to expand our understanding of this phenomenon in extreme cases of trauma such as prolonged captivity, malnourishment, and physical and psychological torture. The study examined the United States' longest detained American prisoners of war, those held in Vietnam in the 1960s through early 1970s.

Posttraumatic stress disorder and metabolic syndrome: retrospective study of repatriated prisoners of war.

Objective: We conducted a retrospective study of metabolic data for Vietnam-era repatriated prisoners of war (RPWs) and a comparison group to determine if metabolic syndrome (MbS) was more common in those individuals with clinically diagnosed, current or lifetime posttraumatic stress disorder (PTSD) as suggested in a recent report.

Methods: The metabolic data of our patients nearest the time of psychiatric evaluation (1998-2004) for PTSD were analyzed using both an analysis of variance and logistic regression.

Results: Although we found elevated triglyceride levels (40 mg/dl higher) in RPWs with PTSD who met MbS criteria, overall the prevalence of MbS was the same in RPWs with and without PTSD and comparison group.

Potential association of posttraumatic stress disorder and decreased bone mineral density in repatriated prisoners of war.

Objective: We conducted a retrospective evaluation of bone mineral density data collected during routine medical follow-up evaluations of 241 Vietnam-era male repatriated prisoners of war, with and without the lifetime diagnosis of posttraumatic stress disorder (PTSD), and 79 subjects in a comparison group.

Methods: Dual-energy X-ray absorptiometry scans evaluated total hip and lumbar spine T-scores. A multivariate analysis of covariance was performed on the data using age, body mass index, ethnicity, and reported alcohol consumption as covariates.