Zobrazeno 1 - 10 of 26 pro vyhledávání: '"DA Knaus"'
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Urinary Calcium for Tracking Bone Loss and Kidney Stone Risk in Space
Autor: Dave B Kynor, DA Knaus, Scott D. Phillips, Junkun Ren, Aleksandra S Stankovic, Jay C. Buckey
Publikováno v: Aerospace medicine and human performance. 91(9)
INTRODUCTION: Urinary calcium (Uca) levels in space reflect bone loss and kidney stone risk and could be measured using portable devices. This project evaluated the repeatability of Uca measurements to assess how many repeated measurements would be n
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::088e74d5ec1073f5e78902c32e5b4a80
https://pubmed.ncbi.nlm.nih.gov/32867898
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4
Ocular changes over 60 min in supine and prone postures
Autor: Abigail M. Fellows, J. G. Swan, Jay C. Buckey, Gautam Babu, Christine M. Toutain-Kidd, Jiang Gui, Scott D. Phillips, DA Knaus, Michael E. Zegans, Allison P. Anderson
Publikováno v: Journal of Applied Physiology. 123:415-423
Some astronauts are returning from long-duration spaceflight with structural ocular and visual changes. We investigated both the transient and sustained effects of changes in the direction of the gravity vector acting on the eye using changes in body
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1100bf9cc8c0974bcbf12268771d921
https://doi.org/10.1152/japplphysiol.00687.2016
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7
Acute effects of changes to the gravitational vector on the eye
Autor: Jay C. Buckey, Christine M. Toutain-Kidd, J. G. Swan, Nicholas T. Kattamis, DA Knaus, Abigail M. Fellows, Scott D. Phillips, Allison P. Anderson, Michael E. Zegans
Publikováno v: Journal of Applied Physiology. 120:939-946
Intraocular pressure (IOP) initially increases when an individual enters microgravity compared with baseline values when an individual is in a seated position. This has been attributed to a headward fluid shift that increases venous pressures in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4a688a97c787a0cd88cc78be14d62d9
https://doi.org/10.1152/japplphysiol.00730.2015
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Microbubble detection following hyperbaric chamber dives using dual-frequency ultrasound
Autor: J. C. Wilbur, J. G. Swan, PJ Magari, Donna L. Alvarenga, B. D. Bollinger, Scott D. Phillips, T. G. Donoghue, Jay C. Buckey, DA Knaus
Publikováno v: Journal of applied physiology (Bethesda, Md. : 1985). 111(5)
Venous gas emboli (VGE) can be readily detected in the bloodstream using existing ultrasound methods. No method currently exists to detect decompression-induced microbubbles in tissue. We hypothesized that dual-frequency ultrasound (DFU) could detect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::295ec77418cd38423b67727f69c3ce2b
https://pubmed.ncbi.nlm.nih.gov/21852404
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10
Signals consistent with microbubbles detected in legs of normal human subjects after exercise
Autor: Donna A. Alvarenga, Terry G. Donoghue, DA Knaus, J. C. Wilbur, Scott D. Phillips, PJ Magari, Jay C. Buckey
Publikováno v: Journal of applied physiology (Bethesda, Md. : 1985). 108(2)
Exercise may produce micronuclei (presumably gas-filled bubbles) in tissue, which could serve as nucleation sites for bubbles during subsequent decompression stress. These micronuclei have never been directly detected in humans. Dual-frequency ultras
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb86725002d9ef7d2021054ef8d49c23
https://pubmed.ncbi.nlm.nih.gov/20019159
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