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https://www.readbyqxmd.com/read/28818330/manufacturing-in-the-eye-of-the-storm-shen-hong-and-the-nine-great-installations-project-during-china-s-cultural-revolution
#1
Lie Sun, Danian Hu
The construction of nine high-end technical installations (hereafter Project NGI, for Nine Great Installations or ) in the 1960s and 1970s was an indispensable part of the development of China's defense and heavy industries. The project put more than 1400 machines into operation or trial operation during the Culture Revolution (1966-1976), and they served essential technical functions in sectors such as aviation, aerospace, machinery, metallurgy, and electronics, and directly advancing the development of these fields...
August 14, 2017: Endeavour
https://www.readbyqxmd.com/read/28818147/attention-deficit-hyperactivity-disorder-and-fatal-accidents-in-aviation-medicine
#2
Tanja Laukkala, Robert Bor, Bruce Budowle, Antti Sajantila, Pooshan Navathe, Markku Sainio, Alpo Vuorio
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder with symptoms of inattention and/or hyperactivity-impulsivity that interfere with functioning and/or development. ADHD occurs in about 2.5% of adults. ADHD can be an excluding medical condition among pilots due to the risk of attentional degradation and therefore impact on flight safety. Diagnosis of ADHD is complex, which complicates aeromedical assessment. This study highlights fatal accident cases among pilots with ADHD and discusses protocols to detect its presence to help to assess its importance to flight safety...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28818146/metabolic-syndrome-and-cardio-cerebrovascular-risk-disparities-between-pilots-and-aircraft-mechanics
#3
Myeong-Bo Kim, Hyun-Jin Kim, Soo-Hyeon Kim, Suk-Ho Lee, Se-Ho Lee, Won-Ju Park
INTRODUCTION: In the Republic of Korea Air Force, the health of pilots is strictly supervised, but there is comparatively not enough interest in aircraft mechanics' health. Among mechanics, who are heavily involved in military aircraft maintenance, the occurrence of sudden cardio-cerebrovascular diseases (CCVDs) is a possible risk factor during the maintenance process, which should be performed perfectly. METHODS: We performed health examinations on 2123 male aircraft pilots and 1271 aircraft mechanics over 30 yr of age and determined the prevalence of metabolic syndrome (MetS), an important risk factor for CCVDs...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28806612/pilots-using-selective-serotonin-reuptake-inhibitors-compared-to-other-fatally-injured-pilots
#4
Paul Rogers, Christy Hileman, Guillermo Salazar, Kacey Cliburn, Lawrence Paskoff, William Hathaway, Kevin Gildea, Victor Hugo Tejera Villalaz
Selective Serotonin Reuptake Inhibitors (SSRI) were a disqualifying medication for U.S. civil pilots before April 5, 2010. After this date, a Federal Aviation Administration policy was created that allowed airmen, on select SSRIs, a pathway to hold a valid medical certificate. The purpose of this study was to provide a detailed look at SSRIs in the U.S. pilot population since the inception of this new policy. We examined the toxicology results from fatally injured airmen in addition to outcomes concerning pilots who are participating in the program...
August 11, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28802440/debiasing-visual-pilots-weather-related-decision-making
#5
Stephen Walmsley, Andrew Gilbey
Pilots who decide to continue a flight into deteriorating weather conditions, rather than turn back or divert, are a significant cause of fatal crashes in general aviation. Earlier research has suggested that cognitive biases such as the anchoring effect and confirmation bias are implicated in many decisions to continue into worsening weather. In this study, we explored whether a simple debiasing technique, 'considering the alternative', reduced the effect of these two potentially fatal biases. Despite the study being adequately powered, our attempts to reduce the effects of biases were both unsuccessful...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28796973/the-role-of-social-cue-utilization-and-closing-the-loop-communication-in-the-performance-of-ad-hoc-dyads
#6
Daniel J Yee, Mark W Wiggins, Ben J Searle
OBJECTIVE: To examine whether social cue utilization impacts the performance of ad hoc dyads through its relationship with closing the loop, a communication process whereby team members respond more frequently to initiating statements made by others. BACKGROUND: There lacks unequivocal experimental evidence for any single cognitive-based process that might predict the performance of ad hoc teams. METHOD: Using a quasi-experimental design, 80 participants were classified into 40 dyads based on their levels of social cue utilization and attempted a team problem-solving task...
September 2017: Human Factors
https://www.readbyqxmd.com/read/28792487/multiaxial-fatigue-damage-parameter-and-life-prediction-without-any-additional-material-constants
#7
Zheng-Yong Yu, Shun-Peng Zhu, Qiang Liu, Yunhan Liu
Based on the critical plane approach, a simple and efficient multiaxial fatigue damage parameter with no additional material constants is proposed for life prediction under uniaxial/multiaxial proportional and/or non-proportional loadings for titanium alloy TC4 and nickel-based superalloy GH4169. Moreover, two modified Ince-Glinka fatigue damage parameters are put forward and evaluated under different load paths. Results show that the generalized strain amplitude model provides less accurate life predictions in the high cycle life regime and is better for life prediction in the low cycle life regime; however, the generalized strain energy model is relatively better for high cycle life prediction and is conservative for low cycle life prediction under multiaxial loadings...
August 9, 2017: Materials
https://www.readbyqxmd.com/read/28790790/an-observational-study-on-the-effects-of-aviation-turbine-fuel-and-lubricants-on-the-skin-of-indian-air-force-ground-crew-in-flying-stations
#8
S Radhakrishnan, Ajay Chopra, Debdeep Mitra, R Gnanasekaran, R Kanagaraj
BACKGROUND: Ground crew of the Air Force routinely handle aviation turbine fuel (ATF) and lubricants and a need was felt to study the adverse effects of these substances on their skin so that remedial measures could be taken to prevent these adverse effects. METHODS: A multi-centric, cross-sectional, observational study was performed at three Air Force flying stations. 109 ground crew members of the Indian Air Force (IAF) who were in direct contact with ATF and lubricants were screened for dermatological manifestations on exposed areas...
July 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28780315/closed-loop-communication-improves-task-completion-in-pediatric-trauma-resuscitation
#9
Ibrahim Abd El-Shafy, Jennifer Delgado, Meredith Akerman, Francesca Bullaro, Nathan A M Christopherson, Jose M Prince
BACKGROUND: Pediatric trauma care requires effective and clear communication in a time-sensitive manner amongst a variety of disciplines. Programs such as Crew Resource Management in aviation have been developed to systematically prevent errors. Similarly, teamSTEPPS has been promoted in healthcare with a strong focus on communication. We aim to evaluate the ability of closed-loop communication to improve time-to-task completion in pediatric trauma activations. METHODS: All pediatric trauma activations from January to September, 2016 at an American College of Surgeons verified level I pediatric trauma center were video recorded and included in the study...
August 2, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28776544/quantitative-evaluation-of-pain-with-pain-index-extracted-from-electroencephalogram
#10
Jian-Xiong An, Yong Wang, Doris K Cope, John P Williams
BACKGROUND: The current pain assessment methods are strongly subjective and easily affected by outside influences, and there is an urgent need to develop a reliable objective and quantitative pain-monitoring indicator. The aim of this study was to evaluate the feasibility of using Pain index (Pi) to assess pain symptoms in pain patients. METHODS: Subjects were enrolled from patients seeking treatment at Pain Medicine Center of China Medical University Aviation General Hospital from October 2015 to December 2016, such as postherpetic neuralgia, spinal cord injury, femoral head necrosis, lumbar disc herniation, trigeminal neuralgia, complex regional pain syndrome, perineal pain, phantom limb pain, etc...
August 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28773971/a-fracture-analysis-of-ti-10mo-8v-1fe-3-5al-alloy-screws-during-assembly
#11
Weifang Zhang, Yuanxing Huang, Wei Dai, Xiaoshuai Jin, Chang Yin
Titanium screws have properties that make them ideal for applications that require both a high strength-to-weight ratio and corrosion resistance, such as fastener applications for aviation and aerospace. The fracture behavior of Ti-10Mo-8V-1Fe-3.5Al (TB3) alloy screws during assembly was explored. Besides visual examination, other experimental techniques used for the investigation are as follows: (1) fracture characteristics and damage morphology via scanning electron microscopy (SEM); (2) chemical constituents via energy dispersive spectroscopy (EDS) and hydrogen concentration testing; (3) metallographic observation; (4) stress durability embrittlement testing; and (5) torsion simulation testing...
October 19, 2016: Materials
https://www.readbyqxmd.com/read/28768049/hazard-analysis-and-safety-requirements-for-small-drone-operations-to-what-extent-do-popular-drones-embed-safety
#12
Anastasios Plioutsias, Nektarios Karanikas, Maria Mikela Chatzimihailidou
Currently, published risk analyses for drones refer mainly to commercial systems, use data from civil aviation, and are based on probabilistic approaches without suggesting an inclusive list of hazards and respective requirements. Within this context, this article presents: (1) a set of safety requirements generated from the application of the systems theoretic process analysis (STPA) technique on a generic small drone system; (2) a gap analysis between the set of safety requirements and the ones met by 19 popular drone models; (3) the extent of the differences between those models, their manufacturers, and the countries of origin; and (4) the association of drone prices with the extent they meet the requirements derived by STPA...
August 2, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28753685/effects-of-lumbar-spine-assemblies-and-body-borne-equipment-mass-on-anthropomorphic-test-device-responses-during-drop-tests
#13
Daniel Aggromito, Mark Jaffrey, Allen Chhor, Bernard Chen, Wenyi Yan
When simulating or conducting land mine blast tests on armored vehicles to assess potential occupant injury, the preference is to use the Hybrid III anthropomorphic test device (ATD). In land blast events, neither the effect of body-borne equipment (BBE) on the ATD response nor the dynamic response index (DRI) is well understood. An experimental study was carried out using a drop tower test rig, with a rigid seat mounted on a carriage table undergoing average accelerations of 161 g and 232 g over 3 ms. A key aspect of the work looked at the various lumbar spine assemblies available for a Hybrid III ATD...
October 1, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28720185/statin-therapy-in-low-risk-air-force-aviators-with-isolated-hypercholesterolemia
#14
Anthony P Tvaryanas, Heather J Mahaney, Valarie M Schroeder, Genny M Maupin
INTRODUCTION: This study evaluated the use of statin therapy in U.S. Air Force (USAF) aviators with isolated hypercholesterolemia in terms of compliance with clinical practice guidelines (CPGs) and effectiveness in reducing low-density lipoprotein cholesterol (LDL-C) and coronary heart disease (CHD) risk. METHODS: This was a mixed design, 8-yr retrospective study that included 8185 participants with isolated hypercholesterolemia, of which 1458 (17.81%) were prescribed statin monotherapy...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28720181/computerized-tests-of-team-performance-and-crew-coordination-suitable-for-military-aviation-settings
#15
Ben D Lawson, Thomas W Britt, Amanda M Kelley, Jeremy R Athy, Shauna M Legan
INTRODUCTION: The coordination of team effort on shared tasks is an area of inquiry. A number of tests of team performance in challenging environments have been developed without comparison or standardization. This article provides a systematic review of the most accessible and usable low-to-medium fidelity computerized tests of team performance and determines which are most applicable to military- and aviation-relevant research, such as studies of group command, control, communication, and crew coordination...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28717134/ash-production-by-attrition-in-volcanic-conduits-and-plumes
#16
T J Jones, J K Russell
Tephra deposits result from explosive volcanic eruption and serve as indirect probes into fragmentation processes operating in subsurface volcanic conduits. Primary magmatic fragmentation creates a population of pyroclasts through volatile-driven decompression during conduit ascent. In this study, we explore the role that secondary fragmentation, specifically attrition, has in transforming primary pyroclasts upon transport in volcanic conduits and plumes. We utilize total grain size distributions from a suite of natural and experimentally produced tephra to show that attrition is likely to occur in all explosive volcanic eruptions...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28711306/can-the-aviation-industry-be-useful-in-teaching-oncology-about-safety
#17
J M Davies, G Delaney
Healthcare practitioners have long considered aviation as a domain from which much can be learned about safety. Over the past 30 years, attempts have been made to apply aviation safety-related concepts to healthcare. Although some applications have been successful, a few decades later, many healthcare safety experts have learned that the appeal of the aviation-healthcare analogy is an illusion. Both domains are so basically dissimilar that simple adoption of aviation concepts will not be successful. However, what has succeeded is healthcare's adaptation of specific aviation safety concepts...
July 12, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28701812/next-generation-data-systems-and-knowledge-products-to-support-agricultural-producers-and-science-based-policy-decision-making
#18
Susan M Capalbo, John M Antle, Clark Seavert
Research on next generation agricultural systems models shows that the most important current limitation is data, both for on-farm decision support and for research investment and policy decision making. One of the greatest data challenges is to obtain reliable data on farm management decision making, both for current conditions and under scenarios of changed bio-physical and socio-economic conditions. This paper presents a framework for the use of farm-level and landscape-scale models and data to provide analysis that could be used in NextGen knowledge products, such as mobile applications or personal computer data analysis and visualization software...
July 2017: Agricultural Systems
https://www.readbyqxmd.com/read/28691756/surgical-specimen-handover-from-the-operating-theatre-to-laboratory-can-we-improve-patient-safety-by-learning-from-aviation-and-other-high-risk-organisations
#19
Peter A Brennan, Marieke T Brands, Lucy Caldwell, Felipe Paiva Fonseca, Nic Turley, Susie Foley, Siavash Rahimi
Essential communication between healthcare staff is considered one of the key requirements for both safety and quality care when patients are handed over from one clinical area to other. This is particularly important in environments such as the operating theatre and intensive care where mistakes can be devastating. Healthcare has learned from other high-risk organisations (HRO) such aviation where the use of checklists and human factors awareness has virtually eliminated human error and mistakes. To our knowledge, little has been published around ways to improve pathology specimen handover following surgery, with pathology request forms often conveying the bare minimum of information to assist the laboratory staff...
July 10, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28681613/the-toxicological-significance-of-post-mortem-drug-concentrations-in-bile
#20
Robin E Ferner, Jeffrey K Aronson
CONTEXT: Some authors have proposed that post-mortem drug concentrations in bile are useful in estimating concentrations in blood. Both The International Association of Forensic Toxicologists (TIAFT) and the US Federal Aviation Administration recommend that samples of bile should be obtained in some circumstances. Furthermore, standard toxicological texts compare blood and bile concentrations, implying that concentrations in bile are of forensic value. AIM: To review the evidence on simultaneous measurements of blood and bile drug concentrations reported in the medical literature...
July 6, 2017: Clinical Toxicology
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