Search

Your search keyword '"McIntosh, Scott"' showing total 176 results
Start Over Author "McIntosh, Scott" Publication Year Range Last 3 years
176 results on '"McIntosh, Scott"'

1. Deciphering Solar Magnetic Activity: Some (Unpopular) Thoughts On the Coupling of the Sun's 'Weather' and 'Climate'

Author

McIntosh, Scott W. and Leamon, Robert J.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics
Abstract

The Sun exhibits episodic surges of magnetic activity across a range of temporal and spatial scales, the most prominent of which is the 11-ish year modulation of sunspot production. Beside the ~170 (min to max) decadal variation in sunspot production there is a less-explored quasi-annual variation in the range of 25-50 sunspots/year in magnitude. In addition, there is there is a slower, ~80 year period, 10-50 variation in the sunspot number, that is commonly referred to as the 'Gleissberg Cycle.' Using a suite of contemporary and historical observations we will illustrate these elements of our star's episodic behavior and present a hypothesis that may provide a consistent physical link between the observed 'climatic', 'decadal' and 'seasonal' magnetic variation of our star., Comment: 18 pages, 8 figures

Published
2024

2. Deciphering Pre-solar-storm Features Of September-2017 Storm From Global And Local Dynamics

Author

Raphaldini, Breno, Dikpati, Mausumi, Norton, Aimee A., Teruya, Andre S. W., McIntosh, Scott W., Prior, Christopher B., and MacTaggart, David

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We investigate whether global toroid patterns and the local magnetic field topology of solar active region AR12673 together can hindcast occurrence of the biggest X-flare of solar cycle (SC)-24. Magnetic toroid patterns (narrow latitude-belts warped in longitude, in which active regions are tightly bound) derived from surface distributions of active regions, prior/during AR12673 emergence, reveal that the portions of the South-toroid containing AR12673 was not tipped-away from its north-toroid counterpart at that longitude, unlike the 2003 Halloween storms scenario. During the minimum-phase there were too few emergences to determine multi-mode longitudinal toroid patterns. A new emergence within AR12673 produced a complex/non-potential structure, which led to rapid build-up of helicity/winding that triggered the biggest X-flare of SC-24, suggesting that this minimum-phase storm can be anticipated several hours before its occurrence. However, global patterns and local dynamics for a peak-phase storm, such as that from AR11263, behaved like 2003 Halloween storms, producing the third biggest X-flare of SC-24. AR11263 was present at the longitude where the North/South toroids tipped-away from each other. While global toroid patterns indicate that pre-storm features can be forecast with a lead-time of a few months, its application on observational data can be complicated by complex interactions with turbulent flows. Complex/non-potential field structure development hours before the storm are necessary for short term prediction. We infer that minimum-phase storms cannot be forecast accurately more than a few hours ahead, while flare-prone active regions in peak-phase may be anticipated much earlier, possibly months ahead from global toroid patterns.

Published
2023

3. Deciphering Solar Magnetic Activity: The (Solar) Hale Cycle Terminator of 2021

Author

McIntosh, Scott W, Leamon, Robert J., and Egeland, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We previously identified an event in the solar timeline that appeared to play a role in how Sunspot Cycle 23 (SC23) transitioned into Sunspot Cycle 24 (SC24). The timeframe for this transition was rapid, taking place over a very short time and perhaps in a time as short as a single solar rotation. Further, we inferred that the transition observed was a critical moment for the Sun's global-scale magnetic field as it was being manifest in the spatially and temporally overlapping magnetic systems belonging to the Sun's 22-year (Hale) magnetic cycle. These events have been dubbed as Hale Cycle terminations, or `terminators' for short. Subsequent exploration of the sunspot record revealed a relationship between terminator separation (as a measure of overlap in the Hale Cycles) and the upcoming sunspot cycle amplitude using a Hilbert transform. Finally, we extrapolated the contemporary sunspots data's Hilbert phase function to project the occurrence of the SC24 terminator in Mid-2020 and inferred that this would result in a large Sunspot Cycle 25 (SC25) amplitude. This paper presents observational evidence that the end of SC24 and the initial growth of SC25 followed a terminator that occurred in mid-December 2021 (approximately 12/13/2021). Using this December 2021 terminator identification we can finalize our earlier preliminary forecast of SC25 amplitude \-- anticipating a peak total monthly sunspot number of 184$\pm$17 with 68\% confidence, and 184$\pm$63 with 95\% confidence. Finally, we use other terminator-related superposed epoch analyses developed in parallel work we project the timing of SC25 sunspot maximum to occur between late 2023 to mid 2024., Comment: 16 pages, 10 figures - Accepted to appear in Frontiers

Published
2022

4. Uniting The Sun's Hale Magnetic Cycle and `Extended Solar Cycle' Paradigms

Author

McIntosh, Scott W., Scherrer, Phillip H., Svalgaard, Leif, and Leamon, Robert J.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

Through meticulous daily observation of the Sun's large-scale magnetic field the Wilcox Solar Observatory (WSO) has catalogued two magnetic (Hale) cycles of solar activity. Those two (~22-year long) Hale cycles have yielded four ($\sim$11-year long) sunspot cycles (numbers 21 through 24). Recent research has highlighted the persistence of the "Extended Solar Cycle" (ESC) and its connection to the fundamental Hale Cycle - albeit through a host of proxies resulting from image analysis of the solar photosphere, chromosphere and corona. This short manuscript presents the correspondence of the ESC, the surface toroidal magnetic field evolution, and the evolution of the Hale Cycle. As Sunspot Cycle 25 begins, interest in observationally mapping the Hale and Extended cycles could not be higher given potential predictive capability that synoptic scale observations can provide., Comment: 10 pages, 5 figures, submitted to Frontiers in Solar and Stellar Physics

Published
2022

5. The Eclipse Megamovie Project (2017)

Author

Hudson, Hugh S., Peticolas, Laura, Johnson, Calvin, White, Vivian, Bender, Mark, Pasachoff, Jay M., Oliveros, Juan Carlos Martínez, Collier, Braxton, Filippenko, Alexei V., Filippenko, Noelle, Fraknoi, Andrew, Gómez, Juan Camilo Guevara, Koh, Justin, Konerding, David, Krista, Larisza, Kruse, Brian, McIntosh, Scott, Mendez, Brian, Ruderman, Igor, Yan, Darlene, and Zevin, Dan

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

The total solar eclipse of August 21, 2017, crossed the whole width of North America, the first occasion for this during the modern age of consumer electronics. Accordingly, it became a great opportunity to engage the public and to enlist volunteer observers with relatively high-level equipment; our program ("Eclipse Megamovie") took advantage of this as a means of creating a first-ever public database of such eclipse photography. This resulted in a large outreach program, involving many hundreds of individuals, supported almost entirely on a volunteer basis and with the institutional help of Google, the Astronomical Society of the Pacific, and the University of California, Berkeley. The project home page is \url{http://eclipsemegamovie.org}, which contains the movie itself. We hope that our comments here will help with planning for similar activities in the total eclipse of April 8, 2024.

Published
2022

7. Patient Voice and Health Education for Familial Hypercholesterolaemia

Author

McIntosh, Scott, Coykendall, Cameron, Lin, Yifei Sylvia, Caufield, Matthew, Muller, Joe, Rowe, Tina, and Block, Robert C.

Abstract

Objective: Familial hypercholesterolaemia (FH), an autosomal dominant disorder causing elevated low-density lipoprotein (LDL) cholesterol from birth resulting in premature cardiovascular disease, is only diagnosed in 10% of affected patients. This study involved partnering with patients with FH and with primary care providers (PCPs) to understand health priorities and translate them into hypotheses for future research and enhancement of health practices via electronic health records (EHRs). The goal was to strengthen genetic health education for clinicians and for patients and their families, including improved diagnosis, knowledge and treatment. Perceptions regarding genetic health education and healthcare related to FH facilitated by the use of an EHR for diagnosis and treatment have not been studied. Design: Mixed-methods exploratory qualitative research and surveys. Setting: Qualitative research included five focus groups, 34 semi-structured key informant interviews and open-ended survey items with patients and PCPs at a large medical centre in Western New York. Method: Data were thematically coded to identify themes as formative work for the improvement of relevant EHR features, diagnosis, treatment and genetic health education via information sharing between clinicians and patients. Results: Themes included genetic health knowledge; the importance of being diagnosed; communication between patients, family members and medical professionals; outreach via patients' own advocacy; and treatment, technology, motivation, trust, outside resources (for further genetic health education and support) and awareness of effective treatments. Conclusion: Patients and clinicians can contribute to the development of EHR support for the genetic health education of patients and their families, and for improved diagnosis and treatment of FH. Using their ideas in the development of effective strategies could improve the currently low rate of FH diagnosis and cascade screening (for family members), as well as enhance physician and patient genetic health knowledge and self-empowerment.

Published
2022
Full Text
View/download PDF

10. Development of a Vaping Cessation Text Messaging Intervention for Latino Young Adults: A Participatory Research Approach.

Author

Orfin, Rafael H, Siddalingaiah, Simran, Dontu, Vignya, Estrada, Bianca, Martinez, Chabeli, Guerra, Darcy, Carrillo, Hanzell, Cervantes-Díaz, María José, Rodríguez-Rojas, Diana Victoria, Rahman, Irfan, McIntosh, Scott, Ossip, Deborah J., Cupertino, Ana Paula, and Cartujano-Barrera, Francisco

Subjects
SMOKING prevention, SMOKING cessation, MEETINGS, HUMAN services programs, RESEARCH funding, ELECTRONIC cigarettes, HISPANIC Americans, READABILITY (Literary style), ACTION research, TEXT messages, ADULTS
Abstract

Objective: Describe the participatory research procedures of developing Kick Vaping, a vaping cessation text messaging intervention for Latino young adults, available in English and Spanish. Methods: Using community-based recruitment strategies, we convened a Community Advisory Board (CAB) of eight Latino young adults (ages 18–25) with different vaping experiences (never users, ex-users, and current users of e-cigarettes). Members held a series of working meetings to adapt Decídetexto, a smoking cessation text messaging intervention, for vaping cessation. Members provided iterative feedback on the text messages until reaching a consensus on content. Messages were translated from English to Spanish following a committee approach. Readability assessments were used to evaluate the legibility of the text messages Results: At baseline, members' mean age was 22.6 years old (SD 3.1), 75% were female, and 50% used both English and Spanish equally. Three members (37.5%) were ex-users and one member (12.5%) was a current user of e-cigarettes. 18 meetings provided sufficient opportunities for iterative feedback on the text messages for developing the intervention. The Kick Vaping intervention consists of 208 text messages. Readability scores of the text messages in English were equivalent to fourth and fifth grade, and in Spanish were equivalent to easy and somewhat easy. Conclusion: It is feasible and practical to build participatory research among Latino young adults focused on vaping cessation. Members of the CAB added innovation and creativity to the development of the vaping cessation text messaging intervention. Future research is needed to evaluate the impact of the intervention on vaping cessation. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

11. Wilderness Medical Society Clinical Practice Guidelines for the Treatment of Acute Pain in Austere Environments: 2024 Update

Author

Fink, Patrick B., primary, Wheeler, Albert R., additional, Smith, William R., additional, Brant-Zawadzki, Graham, additional, Lieberman, James R., additional, McIntosh, Scott E., additional, Van Tilburg, Christopher, additional, Wedmore, Ian S., additional, Windsor, Jeremy S., additional, Hofmeyr, Ross, additional, and Weber, David, additional

Published
2024
Full Text
View/download PDF

12. In Reply to Drs. Rousson, Hall, and Pasquier

Author

Van Tilburg, Christopher, primary, Paal, Peter, additional, Strapazzon, Giacomo, additional, Grissom, Colin K, additional, Haegeli, Pascal, additional, Hölzl, Natalie, additional, McIntosh, Scott, additional, Radwin, Martin, additional, Smith, William “Will” R., additional, Thomas, Stephanie, additional, Tremper, Bruce, additional, Weber, David, additional, Wheeler, Albert R, additional, Zafren, Ken, additional, and Brugger, Hermann, additional

Published
2024
Full Text
View/download PDF

14. Recruiting Latino young adults into a vaping cessation study via social media: Feasibility and cost analysis

Author

Orfin, Rafael H., primary, Uceda, Victoria, additional, Gardner, Cody, additional, Estrada, Brianna, additional, Tamayo, Edward, additional, Hernández-Torres, Ruthmarie, additional, Li, Dongmei, additional, Rahman, Irfan, additional, McIntosh, Scott, additional, Ossip, Deborah J., additional, Cupertino, Ana Paula, additional, and Cartujano-Barrera, Francisco, additional

Published
2024
Full Text
View/download PDF

20. WITHDRAWN: Wilderness Medical Society Clinical Practice Guidelines for Prevention and Management of Avalanche and Nonavalanche Snow Burial Accidents: 2024 Update

Author

Van Tilburg, Christopher, primary, Paal, Peter, additional, Strapazzon, Giacomo, additional, Grissom, Colin K., additional, Haegeli, Pascal, additional, Hölzl, Natalie, additional, McIntosh, Scott, additional, Radwin, Martin, additional, Smith, William “Will” R., additional, Thomas, Stephanie, additional, Tremper, Bruce, additional, Weber, David, additional, Wheeler, Albert R., additional, Zafren, Ken, additional, and Brugger, Hermann, additional

Published
2023
Full Text
View/download PDF

26. Are Black and Latino adolescents being asked if they use electronic cigarettes and advised not to use them? Results from a community-based survey

Author

Connolly, Margaret, primary, Croft, Daniel, additional, Ramírez-Palacios, Paula, additional, Cai, Xueya, additional, Hill, Beverly, additional, Orfin, Rafael H., additional, Rivera, M. Patricia, additional, Wilson, Karen M., additional, Li, Dongmei, additional, McIntosh, Scott, additional, Ossip, Deborah J., additional, Cupertino, Ana Paula, additional, and Cartujano-Barrera, Francisco, additional

Published
2023
Full Text
View/download PDF

28. Space Weather Modeling and Prediction for Intermediate Time-scales

Author

Dikpati, Mausumi, primary, Anderson, Jeffrey L., additional, Belucz, Bernadett, additional, Biesecker, Douglas, additional, Bothun, Greg, additional, Chatterjee, Subhamoy, additional, Fan, Yuhong, additional, Gibson, Sarah E., additional, Gilbert, Holly, additional, Gilman, Peter A., additional, Guerrero, Gustavo A., additional, Hoeksema, J. Todd, additional, Jain, Kiran, additional, Kitiashvili, Irina N., additional, Korsos, Marianna, additional, Kosovichev, Alexander G., additional, Leamon, Robert J., additional, Linkmann, Moritz, additional, McIntosh, Scott W., additional, Norton, Aimee A., additional, Raoafi, Nour E., additional, Raphaldini, Breno, additional, Rempel, Matthias, additional, Tripathy, Sushanta C., additional, Upton, Lisa A., additional, Wang, Haimin, additional, Wing, Simon, additional, and Zaqarashvili, Teimuraz V., additional

Published
2023
Full Text
View/download PDF

29. How Open Data and Interdisciplinary Collaboration Improve Our Understanding of Space Weather: A Risk & Resiliency Perspective

Author

Ledvina, Vincent, primary, Brandt, Laura, additional, MacDonald, Elizabeth, additional, Frissell, Nathaniel, additional, Chen, Thomas Y., additional, French, Ryan, additional, Mare, Francesca Di, additional, Barkhouse, Wayne, additional, Young, Tim, additional, McGranaghan, Ryan, additional, Palmerio, Erika, additional, Halford, Alexa, additional, Thayer, Aidan, additional, Bhaskar, Ankush, additional, Dong, Chuanfei, additional, Marsh, Daniel, additional, Altintas, Ilkay, additional, Colliander, James, additional, Jin, Meng, additional, Jain, Richa Naja, additional, Chatterjee, Subhamoy, additional, Shaikh, Zubair, additional, Isola, Brianna, additional, McIntosh, Scott, additional, Mason, Emily, additional, Riley, Pete, additional, Kazachenko, Maria, additional, Snow, Martin, additional, Ozturk, Dogacan, additional, Claudepierre, Seth, additional, Witteman, Andy, additional, and Kuzub, Jeremy, additional

Published
2023
Full Text
View/download PDF

36. Understanding the Perspectives of Latino Adults Who Smoke on Physical Activity: A Qualitative Study

Author

Hernández-Torres, Ruthmarie, primary, Alaniz-Cantu, Edgar, additional, Bautista Rojas, Maria Valeria, additional, Lara, Daimarelys, additional, Merritt, Sarah, additional, DeJesus, Elisa, additional, D’Abundo, Michelle Lee, additional, McIntosh, Scott, additional, Ossip, Deborah J., additional, Fuller, Daniel, additional, Rivera, M. Patricia, additional, Cupertino, Ana Paula, additional, and Cartujano-Barrera, Francisco, additional

Published
2023
Full Text
View/download PDF

43. How open data and interdisciplinary collaboration improve our understanding of space weather: A risk and resiliency perspective

Author

Ledvina, Vincent E., primary, Palmerio, Erika, additional, McGranaghan, Ryan M., additional, Halford, Alexa J., additional, Thayer, Aidan, additional, Brandt, Laura, additional, MacDonald, Elizabeth A., additional, Bhaskar, Ankush, additional, Dong, Chuanfei, additional, Altintas, Ilkay, additional, Colliander, James, additional, Jin, Meng, additional, Jain, Richa N., additional, Chatterjee, Subhamoy, additional, Shaikh, Zubair, additional, Frissell, Nathaniel A., additional, Chen, Thomas Y., additional, French, Ryan J., additional, Isola, Brianna, additional, McIntosh, Scott W., additional, Mason, Emily I., additional, Riley, Pete, additional, Young, Tim, additional, Barkhouse, Wayne, additional, Kazachenko, Maria D., additional, Snow, Martin, additional, Ozturk, Dogacan S., additional, Claudepierre, Seth G., additional, Di Mare, Francesca, additional, Witteman, Andy, additional, and Kuzub, Jeremy, additional

Published
2022
Full Text
View/download PDF

48. Uniting The Sun's Hale Magnetic Cycle and 'Extended Solar Cycle' Paradigms

Author

McIntosh, Scott W., Scherrer, Phillip H., Svalgaard, Leif, and Leamon, Robert J.

Subjects
Astrophysics - Solar and Stellar Astrophysics, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

Through meticulous daily observation of the Sun's large-scale magnetic field the Wilcox Solar Observatory (WSO) has catalogued two magnetic (Hale) cycles of solar activity. Those two (~22-year long) Hale cycles have yielded four ($\sim$11-year long) sunspot cycles (numbers 21 through 24). Recent research has highlighted the persistence of the "Extended Solar Cycle" (ESC) and its connection to the fundamental Hale Cycle - albeit through a host of proxies resulting from image analysis of the solar photosphere, chromosphere and corona. This short manuscript presents the correspondence of the ESC, the surface toroidal magnetic field evolution, and the evolution of the Hale Cycle. As Sunspot Cycle 25 begins, interest in observationally mapping the Hale and Extended cycles could not be higher given potential predictive capability that synoptic scale observations can provide., 10 pages, 5 figures, submitted to Frontiers in Solar and Stellar Physics

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results