Zobrazeno 1 - 10
of 666
pro vyhledávání: '"Ivarsen, P."'
Autor:
Ivarsen, Magnus F, St-Maurice, Jean-Pierre, Hussey, Glenn C, Huyghebaert, Devin R, Gillies, Megan D
In data mining, density-based clustering, which entails classifying datapoints according to their distributions in some space, is an essential method to extract information from large datasets. With the advent of software-based radio, ionospheric rad
Externí odkaz:
http://arxiv.org/abs/2406.00962
Autor:
Caddy, Robert V., Layden, Andrew C., Reichart, Daniel E., Haislip, Joshua B., Kouprianov, Vladimir V., Ivarsen, Kevin M., Moore, Justin P., LaCluyze, Aaron P., Linder, Tyler R., Nysewander, Melissa C.
Publikováno v:
PASP 134 094201 (2022)
We present time-series CCD photometry in the $BVRI$ passbands of the recently identified symbiotic nova V1835 Aquilae (NSV 11749) over an interval of 5.1 years with 7-14 day cadence, observed during its quiescence. We find slow light variations with
Externí odkaz:
http://arxiv.org/abs/2209.11251
Autor:
Magnus F. Ivarsen, Jean-Pierre St-Maurice, Yaqi Jin, Jaeheung Park, Lisa M. Buschmann, Lasse B. N. Clausen
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Using two separate databases of in situ ionospheric observations, we present case studies and perform a statistical investigation of the link between energetic precipitating particles during the polar night and high-latitude F-region steepening densi
Externí odkaz:
https://doaj.org/article/ef5105f0723e4167bf0caa340bb2d1fd
Autor:
Swift, Jonathan J., Andersen, Karina, Arculli, Toby, Browning, Oakley, Ding, Jeffrey, Edwards, Nick, Fanning, Tomas, Geyer, John, Huber, Grace, Jin-Ngo, Dylan, Kelliher, Ben, Kirkpatrick, Colin, Kirkpatrick, Liam, Klink III, Douglas, Lavine, Connor, Lawrence, George, Lawrence, Yousef, Leung, Feng Lin Cyrus, Luebbers, Julien, Myles, Justin, O'Neill, Theo J., Osuna, Jaime, Phipps, Peter, Rahman, Gazi, Rosenbaum, Teddy, Stacey, Holland, Stacey, Piper, Tang, Hadrien, Wood, Asher, Wilcox, Alejandro, Vyhnal, Christopher R., Yang, Grace, Yim, Jennifer, Yin, Yao, Zhang, Jack, Foley, Ryan J., Gardner, Paul, Stafford, Greg, Rowe, David, Ivarsen, Kevin, Hedrick, Richard
Located on the campus of the Thacher School in Southern California, the Thacher Observatory has a legacy of astronomy research and education that dates back to the late 1950's. In 2016, the observatory was fully renovated with upgrades including a ne
Externí odkaz:
http://arxiv.org/abs/2203.02529
Autor:
Birgith Engelst Grove, Annette de Thurah, Per Ivarsen, Ann Katrine Kvisgaard, Niels Henrik Hjollund, Regine Grytnes, Liv Marit Valen Schougaard
Publikováno v:
JMIR Formative Research, Vol 8, p e48173 (2024)
BackgroundIn Denmark, outpatient follow-up for patients with chronic kidney disease (CKD) is changing from in-hospital visits toward more remote health care delivery. The nonuse of remote patient-reported outcomes (PROs) is a well-known challenge, an
Externí odkaz:
https://doaj.org/article/070ed9c1daf34cca88189397bd17c653
Autor:
Marie Bodilsen Nielsen, Jonathan Nørtoft Dahl, Bente Jespersen, Per Ivarsen, Henrik Birn, Simon Winther
Publikováno v:
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 12, Iss 24 (2023)
Background Screening for cardiovascular disease is currently recommended before kidney transplantation. The present study aimed to validate the proposed algorithm by the American Heart Association (AHA‐2022) considering cardiovascular findings and
Externí odkaz:
https://doaj.org/article/94dc35ab758a487fb4d7ac1faf32fa7d
Autor:
Magnus F. Ivarsen, Jean-Pierre St-Maurice, Glenn Hussey, Andres Spicher, Yaqi Jin, Adam Lozinsky, Lindsay V. Goodwin, Draven Galeschuk, Jaeheung Park, Lasse B. N. Clausen
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The ionosphere, Earth’s space environment, exhibits widespread turbulent structuring, or plasma irregularities, visualized by the auroral displays seen in Earth’s polar regions. Such plasma irregularities have been studied for decades, b
Externí odkaz:
https://doaj.org/article/b77c7dcf8e89409d9549575122dec49a
Publikováno v:
BMC Ophthalmology, Vol 23, Iss 1, Pp 1-6 (2023)
Abstract Background To investigate whether the repeatability of measurements with the Pentacam HR in patients with keratoconus is improved by patients gaining more experience of the measurement situation. Such an improvement could enhance the accurac
Externí odkaz:
https://doaj.org/article/c588d14704524575bce21360d9f7eb3c
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract The healthy cornea is transparent, however, disease can affect its structure, rendering it more or less opaque. The ability to assess the clarity of the cornea objectively could thus be of considerable interest for keratoconus patients. It h
Externí odkaz:
https://doaj.org/article/9d7a979e2c7d431499263fb9b0c6c81c
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