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https://www.readbyqxmd.com/read/29233239/perfluorocarbon-in-delayed-recompression-with-a-mixed-gender-swine-model-of-decompression-sickness
#1
William A Cronin, Aaron A Hall, Charles R Auker, Richard T Mahon
INTRODUCTION: Perfluorocarbons (PFC) are fluorinated hydrocarbons that dissolve gases to a much greater degree than plasma and hold promise in treating decompression sickness (DCS). The efficacy of PFC in a mixed gender model of DCS and safety in recompression therapy has not been previously explored. METHODS: Swine (25 kg; N = 104; 51 male and 53 female) were randomized into normal saline solution (NSS) or PFC emulsion treatment groups and subjected to compression on air in a hyperbaric chamber at 200 fsw for 31 min...
January 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29231744/microfluidic-generation-of-particle-stabilized-water-in-water-emulsions
#2
Niki Abbasi, Maryam Navi, Scott S H Tsai
Herein, we present a microfluidic platform that generates particle-stabilized water-in-water emulsions. The water-in-water system that we use is based on an aqueous two-phase system of polyethylene glycol (PEG) and dextran (DEX). DEX droplets are formed passively, in the continuous phase of PEG and carboxylated particle suspension, at a flow focusing junction inside a microfluidic device. As DEX droplets travel downstream inside the microchannel, carboxylated particles that are in the continuous phase partition to the interface of the DEX droplets, due to their affinity to the interface of PEG and DEX...
December 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29223202/evidence-of-chaos-in-a-routine-watchstanding-task
#3
David Kern, Waldemar Karwowski, Edgar Gutiérrez Franco, Atsuo Murata
Research into human performance on naval ships often emphasizes the significance of shaping factors, such as vigilance, fatigue and circadian rhythm. However, few report on the presence of complex nonlinear dynamics and fractal dimensionality. This study examines over 7000 routine topside security checks on a U.S. Navy Destroyer performed over a twelve-month period. Time series analysis (0-1 test, analysis of Lyapunov exponent, state space plots, and graphical analysis) reveal the presence of chaotic behavior, harmonics attractors, and fractal structures...
January 2018: Nonlinear Dynamics, Psychology, and Life Sciences
https://www.readbyqxmd.com/read/29212502/a-spatial-analysis-of-dietary-patterns-in-a-large-representative-population-in-the-north-of-the-netherlands-the-lifelines-cohort-study
#4
Louise H Dekker, Richard H Rijnks, Dirk Strijker, Gerjan J Navis
BACKGROUND: Diet is an important modifiable risk factor for chronic diseases. In the search for effective strategies to improve dietary patterns in order to promote healthy ageing, new approaches considering contextual factors in public health medicine are warranted. The aim of this study is to examine the spatial clustering of dietary patterns in a large representative sample of adults. METHODS: Dietary patterns were defined on the basis of a 111 item Food Frequency Questionnaire among n = 117,570 adults using principal components analysis...
December 7, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/29211489/pregnancies-and-live-births-active-component-service-women-u-s-armed-forces-2012-2016
#5
Shauna Stahlman, Catherine T Witkop, Leslie L Clark, Stephen B Taubman
This report summarizes data on the demographic and military characteristics of women and women of childbearing potential (WOCBP) in the active component of the U.S. Armed Forces during 2012-2016. Data on pregnancy-related care and birth rates are also presented. In 2016, WOCBP comprised the vast majority of active component service women. The largest proportions of WOCBP were in the categories of women who were 20-24 years old, non-Hispanic white, junior enlisted rank, and in a communications/intelligence occupation...
November 2017: MSMR
https://www.readbyqxmd.com/read/29200312/levels-of-circulating-cortisol-and-cytokines-in-members-of-the-canadian-armed-forces-associations-with-age-sex-and-anthropometry
#6
Hans Christian Tingelstad, Lionel G Filion, Julie Martin, Michael Spivock, Vera Tang, François Haman
OBJECTIVE: To assess blood levels of cortisol and cytokines (inflammatory and non-inflammatory) in members of the regular Canadian Armed Forces (CAF), and examine the associations between sex, age and adiposity and circulating levels of cortisol as well as pro- and anti-inflammatory cytokines. METHODS: As part of a larger ranging project, 331 blood samples were collected from a representative population of the total CAF, which included officers and non-commissioned women and men from the Air Force, Navy and Army...
December 4, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29198361/report-of-the-2017-arthroscopy-association-of-north-america-traveling-fellowship-a-fellowship-odyssey
#7
Michael J Alaia, Nathan K Endres, Patrick W Joyner, Christopher J Tucker
It was an honor to be selected to participate in the 2017 Arthroscopy Association of North America Advanced Arthroscopy Traveling Fellowship. This year's group included Michael J. Alaia, M.D., Assistant Professor and Associate Sports Medicine Fellowship Director at NYU Hospital for Joint Diseases; Nathan K. Endres, M.D., Associate Professor at the University of Vermont; LCDR Patrick W. Joyner, M.D., Assistant Professor at Naval Medical Center Portsmouth, and Head Physician East Coast Navy Seals; and LTC Christopher J...
December 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29176005/could-routine-spirometry-suggest-sensitisation-in-the-military-medicine-setting
#8
Ignazio Cirillo, F Gallo, G Ciprandi
INTRODUCTION: Providing evidence of sensitisation is the formal requirement for allergy diagnosis. The aim of this study was to evaluate whether spirometry may be able to predict sensitisation in a representative cohort of Italian Navy military personnel. METHODS: 2043 (1875 men, 168 women, mean age 28.35±11.6 years) Italian Navy military personnel were enrolled into this study. Spirometry and skin prick testing were performed to predict sensitisation. RESULTS: Sensitisation, assessed by skin prick test, was documented in 658 (32...
November 24, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29161578/probabilistic-pharmacokinetic-models-of-decompression-sickness-in-humans-part-2-coupled-perfusion-diffusion-models
#9
F Gregory Murphy, Ethan A Hada, David J Doolette, Laurens E Howle
Decompression sickness (DCS) can be experienced following a reduction in ambient pressure; such as that associated with diving or ascent to high altitudes. DCS is believed to result when supersaturated inert gas dissolved in biological tissues exits solution and forms bubbles. Models to predict the probability of DCS are typically based on nitrogen and/or helium gas uptake and washout in several theoretical tissues, each represented by a single perfusion-limited compartment. It has been previously shown that coupled perfusion-diffusion compartments are better descriptors than solely perfusion-based models of nitrogen and helium uptake and elimination kinetics observed in the brain and skeletal muscle of sheep...
November 15, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29161182/alcohol-biomarkers-associated-with-obstructive-sleep-apnea
#10
R Gregory Lande, Cynthia T Gragnani, Miriam Pourzand, Despina Hangemanole
The views expressed in this presentation are those of the author and do not reflect the official policy of the Department of the Army/Navy/Air Force or the Department of Defense The identification of specific products or scientific instrumentation does not constitute an endorsement or implied endorsement on the part of the authors, DoD, or any component agency. While we generally excise references to products, companies, manufacturers, organizations, etc. in government produced works, the abstracts produced and other similarly situated researchers presents a special circumstance when such product inclusions become an integral part of the scientific endeavor...
November 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29159355/aggregation-induced-visible-light-absorption-makes-reactant-1-2-diisocyanoarenes-act-as-photosensitizers-in-double-radical-isocyanide-insertions
#11
Wenmin Wang, Xiaoyang Sun, Jian Qu, Xiaoyu Xie, Zheng-Hang Qi, Daocheng Hong, Su Jing, Dong Zheng, Yuxi Tian, Haibo Ma, Shouyun Yu, Jing Ma
The joint computational and experimental efforts reveal that the organic molecule 1,2-diisocyano-4,5-dimethylbenzene (1) acts as both a reactant and a photosensitizer (PS) in a metal-free reaction with perfluoroalkylhalide (2) to produce 2-perfluoroalkyl quinoxalines (3) under visible light. Both the π-π stacking aggregation in crystals and the solvation in various solvents of PS 1 exhibited visible-light absorption at 466 nm in spite of its smaller coefficient than that of the ultraviolet-light absorption...
November 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29157337/simulated-high-altitude-helium-oxygen-diving
#12
Lu Shi, Yan-Meng Zhang, Katsuura Tetsuo, Zhong-Yuan Shi, Yi-Qun Fang, Petar J Denoble, Yang-Yang Li
BACKGROUND: Experience with commercial heliox diving at high altitude is limited. The purpose of this study was to evaluate the effects of acute high-altitude exposure on fitness to dive and the safety of decompression after heliox diving while using U.S. Navy heliox decompression tables with Cross correction. METHOD: Four professional male divers were consecutively decompressed in a hypo- and hyperbaric chamber to altitudes of 3000 m (9842.5 ft), 4000 m (13,123...
December 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29151231/sleep-medicine-is-coming-of-age-in-military-medicine-report-from-the-military-health-system-research-symposium-2017-in-kissimmee-florida
#13
Arn H Eliasson, Christopher Lettieri, Nikolaus Netzer
In August 2017, the US Military Health System held its sixth annual Research Symposium for medical researchers from the US Army, Navy, Air Force, and Public Health Service. The symposium provides a collaborative environment for academia, industry, and military researchers who address advancement in areas of Combat Casualty Care, Military Operational Medicine, Clinical and Rehabilitative Medicine, and Military Infectious Diseases. This year, Sleep Medicine received substantial attention with presentations scattered throughout the program, poster presentations as well as a scheduled breakout session with podium presentations...
November 18, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29147980/a-long-term-comparative-assessment-of-human-health-risk-to-leachate-contaminated-groundwater-from-heavy-metal-with-different-liner-systems
#14
Harshit Mishra, Subhankar Karmakar, Rakesh Kumar, Praneeth Kadambala
The handling and management of municipal solid waste (MSW) are major challenges for solid waste management in developing countries. Open dumping is still the most common waste disposal method in India. However, landfilling also causes various environmental, social, and human health impacts. The generation of heavily polluted leachate is a major concern to public health. Engineered barrier systems (EBSs) are commonly used to restrict potentially harmful wastes by preventing the leachate percolation to groundwater and overflow to surface water bodies...
November 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29137111/effect-of-omega-3-fatty-acid-supplementation-on-plasma-fibroblast-growth-factor-23-levels-in-post-myocardial-infarction-patients-with-chronic-kidney-disease-the-alpha-omega-trial
#15
Martin H de Borst, Leandro C Baia, Ellen K Hoogeveen, Erik J Giltay, Gerjan Navis, Stephan J L Bakker, Johanna M Geleijnse, Daan Kromhout, Sabita S Soedamah-Muthu
Fibroblast growth factor 23 (FGF23) is an independent risk factor for cardiovascular mortality in chronic kidney disease. Omega-3 (n-3) fatty acid consumption has been inversely associated with FGF23 levels and with cardiovascular risk. We examined the effect of marine n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and plant-derived alpha-linolenic acid (ALA) on plasma FGF23 levels in post-myocardial infarction patients with chronic kidney disease. In the randomized double-blind Alpha Omega Trial, 4837 patients with a history of myocardial infarction aged 60-80 years (81% men) were randomized to one of four trial margarines supplemented with a targeted additional intake of 400 mg/day EPA and DHA, 2 g/day ALA, EPA-DHA plus ALA, or placebo for 41 months...
November 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29122474/predicting-individual-risk-for-medial-tibial-stress-syndrome-in-navy-recruits
#16
Cameron Garnock, Jeremy Witchalls, Phil Newman
OBJECTIVES: Quantifying individual risk for medial tibial stress syndrome (MTSS) is valuable due to the high prevalence, substantial financial and service costs, and lengthy recovery time of the condition. Identification of those at risk is a key first step in prevention of the condition. This study aimed to test a suite of best evidence risk factors in a cohort of Navy recruits and to develop a predictive model for individuals at risk of MTSS. DESIGN: Prospective cohort study of Navy recruits undergoing initial training METHODS: A prospective cohort design, this study screened recruits by assessing gender, MTSS history, years of running experience, orthotic use, BMI, navicular drop, ankle plantarflexion and hip external rotation at the beginning of basic training...
October 23, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29116694/efficacy-of-the-u-s-navy-treatment-tables-in-treating-dcs-in-103-recreational-scuba-divers
#17
Walter Chin, Ellie Joo, Scott Ninokawa, Daniel A Popa, Derek B Covington
Despite the fact that current decompression schedules reduce the risk of decompression sickness (DCS), recreational scuba divers continue to experience DCS. Therapy outcomes in these divers are difficult to track. Our study aims to understand the efficacy of the United States Navy (USN) Treatment Tables (5, 6, 6A, 9) in providing symptomatic relief among recreational scuba divers. We conducted a single-center retrospective review of recreational divers treated from 2003 to 2013. A total of 187 divers were identified: 84 divers were excluded, and the charts of the remaining 103 divers were independently reviewed by three clinicians...
2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/29098744/work-stressors-depressive-symptoms-and-sleep-quality-among-us-navy-members-a-parallel-process-latent-growth-modelling-approach-across-deployment
#18
Adrian J Bravo, Michelle L Kelley, Cindy M Swinkels, Christi S Ulmer
The present study examined whether work stressors contribute to sleep problems and depressive symptoms over the course of deployment (i.e. pre-deployment, post-deployment and 6-month reintegration) among US Navy members. Specifically, we examined whether depressive symptoms or sleep quality mediate the relationships between work stressors and these outcomes. Participants were 101 US Navy members who experienced an 8-month deployment after Operational Enduring Freedom/Operation Iraqi Freedom. Using piecewise latent growth models, we found that increased work stressors were linked to increased depressive symptoms and decreased sleep quality across all three deployment stages...
November 3, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29097956/thoracic-spondylodiscitis-epidural-abscess-in-an-afebrile-navy-veteran-a-case-report
#19
Zachary A Cupler, Michael T Anderson, Thomas J Stancik
Objective: The purpose of this case study was to describe the differential diagnosis of a thoracic epidural abscess in a Navy veteran who presented to a chiropractic clinic for evaluation and management with acupuncture within a Veterans Affairs Medical Center. Clinical Features: An afebrile 59-year-old man with acute thoracic spine pain and chronic low back pain presented to the chiropractic clinic at a Veterans Affairs Medical Center for consideration for acupuncture treatment...
September 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/29095262/diurnal-variation-of-pulse-waveform-parameters-determined-by-laser-speckle-flowgraphy-on-the-optic-nerve-head-in-healthy-subjects
#20
Marie Fukami, Takeshi Iwase, Kentaro Yamamoto, Eimei Ra, Kenta Murotani, Hiroko Terasaki
To investigate the diurnal variation of the pulse waveform parameters determined by laser speckle flowgraphy (LSFG) on the optic nerve head (ONH) in healthy subjects.This prospective cross sectional study was conducted at Nagoya University Hospital. We studied 13 healthy volunteers whose mean age was 33.5 ± 7.6 years. Eight pulse waveform parameters on the ONH were determined by LSFG (LSFG-NAVI) every 3 hours from 6 AM to 12 PM. The intraocular pressure (IOP), systolic (SBP) and diastolic (DBP) blood pressure, and heart rate (HR) in the brachial artery were also recorded...
November 2017: Medicine (Baltimore)
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