| 1. |
- Abdellaoui, G., et al.
(författare)
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Meteor studies in the framework of the JEM-EUSO program
- 2017
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Ingår i: Planetary and Space Science. - : Elsevier. - 0032-0633 .- 1873-5088. ; 143, s. 245-255
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Tidskriftsartikel (refereegranskat)abstract
- We summarize the state of the art of a program of UV observations from space of meteor phenomena, a secondary objective of the JEM-EUSO international collaboration. Our preliminary analysis indicates that JEM-EUSO, taking advantage of its large FOV and good sensitivity, should be able to detect meteors down to absolute magnitude close to 7. This means that JEM-EUSO should be able to record a statistically significant flux of meteors, including both sporadic ones, and events produced by different meteor streams. Being unaffected by adverse weather conditions, JEM-EUSO can also be a very important facility for the detection of bright meteors and fireballs, as these events can be detected even in conditions of very high sky background. In the case of bright events, moreover, exhibiting some persistence of the meteor train, preliminary simulations show that it should be possible to exploit the motion of the ISS itself and derive at least a rough 3D reconstruction of the meteor trajectory. Moreover, the observing strategy developed to detect meteors may also be applied to the detection of nuclearites, exotic particles whose existence has been suggested by some theoretical investigations. Nuclearites are expected to move at higher velocities than meteoroids, and to exhibit a wider range of possible trajectories, including particles moving upward after crossing the Earth. Some pilot studies, including the approved Mini-EUSO mission, a precursor of JEM-EUSO, are currently operational or in preparation. We are doing simulations to assess the performance of Mini-EUSO for meteor studies, while a few meteor events have been already detected using the ground-based facility EUSO-TA.
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| 2. |
- Abdellaoui, G., et al.
(författare)
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First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere
- 2018
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Ingår i: Journal of Instrumentation. - : IOP PUBLISHING LTD. - 1748-0221 .- 1748-0221. ; 13
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Tidskriftsartikel (refereegranskat)abstract
- EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25(th) of August 2014 from Timmins, Canada. The flight ended successfully after maintaining the target altitude of 38 km for five hours. One part of the mission was a 2.5 hour underflight using a helicopter equipped with three UV light sources (LED, xenon flasher and laser) to perform an inflight calibration and examine the detectors capability to measure tracks moving at the speed of light. We describe the helicopter laser system and details of the underflight as well as how the laser tracks were recorded and found in the data. These are the first recorded laser tracks measured from a fluorescence detector looking down on the atmosphere. Finally, we present a first reconstruction of the direction of the laser tracks relative to the detector.
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| 3. |
- Haggerty, Treah, et al.
(författare)
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Pain Management During West Virginia's Opioid Crisis
- 2022
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Ingår i: Journal of the American Board of Family Medicine : JABFM. - 1557-2625. ; 35:5, s. 940-950
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: Opioid use disorder has caused significant morbidity and mortality resulting in opioid prescribing limiting laws, such as State Bill 273 in West Virginia. The purpose of this study is to explore the impacts of a restrictive opioid prescription law on physicians in medical practice in West Virginia. METHODS: A qualitative study with open-ended semistructured interviews with a purposive sample of physicians in West Virginia. Interviews were recorded and transcribed verbatim. A preliminary code book was developed by 3 coinvestigators. Interview transcriptions were analyzed with a code-based text search query. Content analysis was utilized as the methodological orientation underpinning for the current work. RESULTS: Interviews were conducted with 20 physicians (10 primary care physicians and 10 specialty physicians) in practice in West Virginia. Physicians identified 5 theoretical domains related to SB273: changing opioid prescribing and documentation requirements; rural socioeconomic disparities; a continuum between chronic pain and substance use disorder; difficulty in balancing patient needs and the concern for diversion; lack of available alternatives to opioids for chronic. CONCLUSION: Prescribing opioids in rural West Virginia is complex due to identified challenges. Recommendations for opioids prescribing legislation include clear messaging of guidelines and recommendations, efforts to address socioeconomic disparities of health and pain, and improved accessibility for treatment of both pain and dependence in rural communities are important areas of growth in the rural health care environment.
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| 4. |
- Sedney, Cara L., et al.
(författare)
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“The DEA would come in and destroy you” : a qualitative study of fear and unintended consequences among opioid prescribers in WV
- 2022
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Ingår i: Substance Abuse: Treatment, Prevention, and Policy. - : Springer Science and Business Media LLC. - 1747-597X. ; 17
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Tidskriftsartikel (refereegranskat)abstract
- Background: West Virginia has one of the highest rates of opioid overdose related deaths and is known as the epicenter of the opioid crisis in the United States. In an effort to reduce opioid-related harms, SB 273 was signed in 2018, and aimed to restrict opioid prescribing in West Virginia. SB 273 was enacted during a time when physician arrests and convictions had been increasing for years and were becoming more prevalent and more publicized. This study aims to better understand the impact of the legislation on patients and providers. Methods: Twenty semi-structured interviews were conducted with opioid-prescribing primary care physicians and specialists practicing throughout West Virginia. Results: Four themes emerged, 1. Fear of disciplinary action, 2. Exacerbation of opioid prescribing fear due to restrictive legislation, 3. Care shifts and treatment gaps, and 4. Conversion to illicit substances. The clinicians recognized the harms of inappropriate prescribing and how this could affect their patients. Decreases in opioid prescribing were already occurring prior to the law implementation. Disciplinary actions against opioid prescribers resulted in prescriber fear, which was then exacerbated by SB 273 and contributed to shifts in care that led to forced tapering and opioid under-prescribing. Providers felt that taking on patients who legitimately required opioids could jeopardize their career. Conclusion: A holistic and patient-centered approach should be taken by legislative and disciplinary bodies to ensure patients are not abandoned when disciplinary actions are taken against prescribers or new legislation is passed.
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