7 research outputs found

    Use and Implementation of the Automatic Packet Reporting System (APRS) on high altitude payloads.

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    Once a weather balloon enters the uncontrollable realm of nature upon release it is subject to a high degree of freedom and flight path options. Passive tracking methods become essential to physically follow the trajectory, the balloon, and its payload. The Automatic Packet Reporting System (APRS) provides an ideal platform for tracking high-altitude and low earth orbit instrumentation because at zenith there is no radio horizon. Demonstrated aboard the International Space Station, this simple system provides the maximum tracking range at very low power and cost with very high accuracy, by utilizing existing federally funded infrastructure. An amateur radio license is required to utilize the APRS network, and additionally provides a reliable mean of communication with ground/team personal. Both APRS and very high frequency (VHF) radio communications were critically utilized during the August 2017 Solar Eclipse balloon launch by both the College of Charleston and Universidad Interamericana (Puerto Rico) High Altitude Balloon Teams, providing all tracking data above 110,000 feet after the primary Iridium tracking system failed. This poster is intended to demonstrate the benefits of incorporating APRS and to advocate its use for future launches

    Perception of Physician Empathy Varies With Educational Level and Gender of Patients Undergoing Low-Yield Computerized Tomographic Imaging

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    Objective: Lack of empathic communication between providers and patients may contribute to low value diagnostic testing in emergency care. Accordingly, we measured the perception of physician empathy and trust in patients undergoing low-value computed tomography (CT) in the emergency department (ED). Methods: Multicenter study of ED patients undergoing CT scanning, acknowledged by ordering physicians as unlikely to show an emergent condition. Near the end of their visit, patients completed the Jefferson Scale of Patient Perception of Physician Empathy (JSPPPE), Trust in Physicians Survey (TIPS), and the Group Based Medical Mistrust Scale (GBMMS). We stratified results by patient demographics including gender, race, and education. Results: We enrolled 305 participants across 9 sites with diverse geographic, racial, and ethnic representation. The median scores (interquartile ranges) for the JSPPPE, TIPS, and GBMMS for all patients were 29 (24-33.5), 55 (47-62), and 18 (12-29). Compared with white patients, nonwhite patients had similar JSPPPE and TIPS scores but had higher (worse) GBMMS scores. Females had significantly lower JSPPPE and TIPS scores than males, and scores were lower (worse) in females with college degrees. Patients in the lowest tier of educational status had the highest (better) JSPPPE and TIPS scores. Scores were invariant with physician characteristics. Conclusion: Among patients undergoing low-value CT scanning in the ED, the degree of patient perception of physician empathy and trust varied based on the patients’ level of education and gender. Given this variation, an intervention to increase patient perception of physician empathy should contain individualized strategies to address these subgroups, rather than a one-size-fits-all approach

    Characterizing the Mineralogy of Potential Lunar Landing Sites

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    Many processes active on the early Moon are common to most terrestrial planets, including the record of early and late impact bombardment. The Moon's surface provides a record of the earliest era of terrestrial planet evolution, and the type and composition of minerals that comprise a planetary surface are a direct result of the initial composition and subsequent thermal and physical processing. Lunar mineralogy seen today is thus a direct record of the early evolution of the lunar crust and subsequent geologic processes. Specifically, the distribution and concentration of specific minerals is closely tied to magma ocean products, lenses of intruded or remelted plutons, basaltic volcanism and fire-fountaining, and any process (e.g. cratering) that might redistribute or transform primary and secondary lunar crustal materials. The association of several lunar minerals with key geologic processes is illustrated in Figure 1. The geologic history of potential landing sites on the Moon can be read from the character and context of local mineralogy

    Reaching for the Stars IS an Option: A Conversation

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    Have you or someone you know ever dreamed of doing something big - perhaps starting a business or working for the aerospace industry and/or NASA? You (they) can. Have you or someone you know been challenged by a visible or invisible disability thinking it may be a career-breaking barrier that may not be overcome? You (they) can! The old adage, \u27where there is a will, there is a way\u27 is true! Recognizing, understanding, and being willing to work through - and with - life’s challenges along the way is paramount. As an educator, employer, or friend, we can help to facilitate and include those with exceptional needs so that reaching for their star career choice is an option.https://commons.und.edu/ss-colloquium/1079/thumbnail.jp

    Use and Implementation of the Automatic Packet Reporting System (APRS) on high altitude payloads.

    Get PDF
    Once a weather balloon enters the uncontrollable realm of nature upon release it is subject to a high degree of freedom and flight path options. Passive tracking methods become essential to physically follow the trajectory, the balloon, and its payload. The Automatic Packet Reporting System (APRS) provides an ideal platform for tracking high-altitude and low earth orbit instrumentation because at zenith there is no radio horizon. Demonstrated aboard the International Space Station, this simple system provides the maximum tracking range at very low power and cost with very high accuracy, by utilizing existing federally funded infrastructure. An amateur radio license is required to utilize the APRS network, and additionally provides a reliable mean of communication with ground/team personal. Both APRS and very high frequency (VHF) radio communications were critically utilized during the August 2017 Solar Eclipse balloon launch by both the College of Charleston and Universidad Interamericana (Puerto Rico) High Altitude Balloon Teams, providing all tracking data above 110,000 feet after the primary Iridium tracking system failed. This poster is intended to demonstrate the benefits of incorporating APRS and to advocate its use for future launches
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