269 research outputs found

    Weather Self-briefings in General Aviation: A Human Factors Perspective

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    FAA requires GA pilots to obtaining information prior to flight; GA pilots should gather all information vital to the nature of the flight. This includes a weather briefing obtained by the pilot from an approved weather source, via the Internet, and/or from a Flight Service Station (FSS) specialist

    Coordination of transportation systems of the United States

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    To any thinking man it must be apparent that the railroads are of vital necessity to the country at large as they can more cheaply move a host of the heavy commodities than can the trucks, and of course the waterways do not and cannot reach every part of the vast territory that must be served. On the other hand it is equally apparent that many of the other types of traffic can be handled more readily and cheaply by truck than by rail. This would lead one to conclude that some way should be found to give to each system that part of the traffic which it is best fitted to handle, and that all along the line there should be a spirit of cooperation instead of the ruthless battle that has been carried on for the past few years. Such strife has succeeded in accomplishing nothing of a constructive nature but has caused much needless destruction of property and the loss of large sums of money to the participants in this warfare we well as similar losses to the bystanding public --Introduction, page 2

    Treating Rheumatoid Arthritis: Immunosuppression Versus Stem Cell Therapy

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    This literature review will discuss the difference in efficacy and side effect profile between methotrexate monotherapy and mesenchymal stem cell therapy for the treatment of rheumatoid arthritis. Rheumatoid arthritis is a debilitating inflammatory condition that effects a person’s mobility and can cause chronic, intense pain. Due to the side effect profile of methotrexate, mesenchymal stem cell therapy is being investigated as a treatment option. There were 11 scholarly articles evaluated for the purpose of this literature review. Data compiled from these studies supports the use of Mesenchymal stem cells as treatment for rheumatoid arthritis due to immunomodulatory effect on multiple immune components that contribute to the development of rheumatoid arthritis. Mesenchymal stem cell treatment was also less likely to cause serious side effects than methotrexate therapy. However, the determination of whether mesenchymal stem cell therapy is definitively more effective than methotrexate monotherapy cannot be made. This is due to a lack of robust research available for the evaluation of mesenchymal stem cell therapy on rheumatoid arthritis. Additionally, the exact mechanism by which mesenchymal stem cells provide the desired immunomodulatory effects is not yet well understood.https://commons.und.edu/pas-grad-posters/1302/thumbnail.jp

    Treating Rheumatoid Arthritis: Immunosuppression versus Stem Cell Therapy

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    methotrexate monotherapy, rheumatoid, arthritis, mesenchymal stem cell transplantation, anti-TNF, CXCL8, CXCL12, CXCL13, umbilical cord mesenchymal stem cell, and adipose tissue mesenchymal stem cel

    Usability Analysis of Convective SIGMETs

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    Introduction Methods Results â—‹ Interface Analysis: System Usability Scale â—‹ Workload Analysis: NASA-TLX Discussion Current Investigation

    Crew Resource Management and Shared Mental Models: A Proposal

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    Crew Resource Management (CRM) training focuses on situation awareness, communication skills, teamwork, task allocation, and decision making. More recently, an interest in cognitive skill is beginning to appear in relation to CRM. One aspect of cognitive skill that has been examined in a variety of team domains is the notion of overlapping or shared mental models among teammates. While a growing amount of evidence on the relationship between shared mental models and team performance exists, only limited research has focused on the role that shared mental models have-in crew resource management. The purpose of this paper is to provide CRM researchers and practitioners an understanding of the shared mental model construct and the role of shared mental models in team performance, as well as to encourage additional research on this topic within the aviation domain

    Applying change management to general aviation: Pilot self-briefings for weather

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    General aviation (GA) pilots are increasingly relying on available weather technology to conduct preflight weather self-briefings, rather than call-in briefings to Flight Services. However, research has shown that GA pilots’ have difficulty in interpreting weather products, such as radar, and that this problem persists even after additional training. The domain of change management examines how to properly plan and implement transitions in technology. The current paper examines this transition from call-in to self-briefing using principles of change management, specifically from the Unified Theory of Acceptance and Use of Technology

    Aviation Human-in-the-Loop Simulation: Best Practices for Subjective Performance Measurement

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    Subjective performance measurements are a useful tool for researchers and instructors to evaluate tasks that are difficult to quantify with objective data pulled from a simulator or the physiological data of pilots. Subjective performance measurements are non-intrusive measures typically conducted by human raters. Some recommendations for utilizing subjective measures include reducing the workload of the human raters, concealing the aim of the experiment from participants, utilizing multiple raters to evaluate each participant, providing raters with proper training, developing error-resistant rater forms and, including both subjective and objective measures when possible

    I Don\u27t Regret Living with My Pain : A Work-Related Musculoskeletal Disorder Case Study

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    Work-related musculoskeletal disorders (WMSDs) are a dominant occupational health issue for older adults in the workforce. However, existing literature has not investigated the prevalence and development of WMSDs among older adults working as clean room assemblers. This case study aimed to provide ergonomic recommendations to the product assembly industry by examining the ergonomic/psychosocial risk factors and WMSD symptoms experienced by PVP, a 76-year-old female medical implant clean room assembler. Using mixed methods, data were collected through questionnaires, semi-structured interviews, and two WMSD risk assessment tools (Moore-Garg Strain Index, Hand Threshold Limit Value) to understand PVP’s psychosocial environment and evaluate her job tasks during product assembly. Results indicated that PVP experiences severe upper and lower limb pain during task completion due to long duration, awkward postures, and repetition. Additionally, critical job tasks were rated as “hazardous” for potential WMSD development. Finally, three workplace issues (high productivity pressure, limited job control, strained employee relations) were identified. Recommendations to reduce WMSD risk include using upper limb support devices, implementing job rotation, reducing productivity quotas, increasing worker autonomy, and rectifying organizational communication practices. This research emphasizes the importance of considering ergonomics to improve worker health, comfort, and productivity for aging employees in the workforce
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