John Nelson
· Adjunct ProfessorVerifiedUniversity of Wisconsin-Madison · Civil & Environmental Engineering
Active 1888–2024
Research topics
- Computer Science
- Remote sensing
- Geology
- Computer vision
- Geodesy
- Environmental science
- Physics
- Geography
- Oceanography
Selected publications
Advancing preventive health care for men across the lifespan
The Nurse Practitioner · 2024-10-29
articleSenior authorABSTRACT: Historically, cisgender men have been found to be reluctant to utilize healthcare services, particularly preventive care services. NPs can bridge this gap to address health disparities among men, who are more likely to develop life-threatening conditions and who generally face higher mortality at younger ages than women. Focusing on advancing preventive care among men strengthens family, community, and societal health, and the NP is crucial in fostering a culture of preventive care in this population. To help drive this change, use of a life-stage approach that incorporates a preventive care mindset is critical. The NP should tailor health strategies to each life phase to ensure that men receive the best preventive care possible across the lifespan.
Journal of the Association of Nurses in AIDS Care · 2024-10-31 · 6 citations
articleABSTRACT: There is a decreasing HIV care workforce in the United States, whereas the need for HIV care and prevention continues to increase. To better understand this issue, a quantitative, anonymous, one-time, self-administered survey was conducted. The survey was completed by 1,004 prescribing clinicians currently providing HIV-related health care. Clinicians of younger age and Black race, advanced practice registered nurses, and family medicine physicians were more likely to report continuing with the same number of patients or increasing the number of patients in their HIV practice in the next 5 years. The need for more prescribing HIV care clinicians is paramount because 17.8% reported plans to stop HIV clinical care wholly or to decrease the number of people living with HIV in their practice over the next 5 years. The most common reasons for leaving include retirement, administrative burden, and burnout.
JAIDS Journal of Acquired Immune Deficiency Syndromes · 2024-11-20 · 1 citations
articleOpen accessINTRODUCTION: The US state of Florida has the third highest rate of HIV and high rates of sexually transmitted infections (STIs) indicating critical HIV and STI prevention needs remain unmet. To address gaps in the STI care continuum in people with HIV (PWH), evidence-based interventions were implemented across 3 Ryan White HIV/AIDS Program (RWHAP)-funded clinics in Florida between August 2020 and August 2021. Interventions included comprehensive sexual health history (SHH) taking using audio computer-assisted self-interview (ACASI) software, self-collected extragenital gonorrhea and chlamydia testing, and the introduction of a lesbian, gay, bisexual, transgender, and queer (LGBTQ+) welcoming environment. METHODS: We (1) assessed the acceptability of these interventions and examined if acceptability differed among youth and sexual, racial, and ethnic minorities; (2) determined the proportion of appropriate STI testing completed based on the SHH assessment; (3) examined whether STI at-risk individuals underwent STI screening 3-6 months after initial evaluation; and (4) determined the proportion of positive STI test results among priority intervention groups in Florida. RESULTS: Acceptability of all interventions was high. Youth, lesbian, gay, and bisexual, and Hispanic individuals were significantly more likely to notice and like LGTBQ+ welcoming measures. The proportion of recommended tests completed was high, although only a subset of at-risk individuals completed rescreening. About 11.9% of rectal samples were positive for chlamydia, and 6.5% of pharyngeal samples were positive for gonorrhea. CONCLUSIONS: Our study highlights the importance of incorporating comprehensive sexual health care protocols, including extragenital STI testing, into the overall care of PWH.
Parallax Shift in GOES ABI Data
Journal of Operational Meteorology · 2023 · 7 citations
Senior authorCorresponding- Computer Science
- Remote sensing
- Geology
A parallax shift is a displacement in the apparent navigated position of a feature that arises because of its perspective from the viewing platform and is also a function of the feature height. For Geostationary Operational Environmental Satellite (GOES) imagery, this shift is especially apparent away from the satellite subpoint. Users should understand the degree of this shift when combining GOES Advanced Baseline Imager (ABI) imagery with other data, such as radar and lightning. However, it can be challenging, especially at spatial resolutions around the cloud/storm scale. This article explores parallax displacement for both uniform and computed cloud-top heights. Parallax shift will be shown using two case studies. The first case is from 7 September 2021, in which northern Illinois hailstorms are examined using ground-based Level II NEXRAD radar data, GOES-16 ABI imagery, and Geostationary Lightning Mapper data. The second case, on 9 April 2021, examines an eruption of the La Soufrière volcano on St. Vincent from the differing perspectives of GOES16 and -17. The discussion of these cases will show how parallax is an apparent displacement that will vary depending on what satellites are used for observation, where the phenomenon is with respect to the satellite, and the height of the phenomenon being analyzed. Newer satellite instruments with finer spatial resolutions and improved georeferencing will maximize data usability at more extreme angles and require users to account for the accompanying enhanced parallax shift. Even at lesser angles, parallax displacement is an important consideration for many meteorological and other applications.
A Scoping Review of Self-Care Within the Context of Obesity-Related Outcomes Among Faith Leaders
American Journal of Health Promotion · 2023-10-12 · 3 citations
reviewOBJECTIVE: Faith leaders often serve as health-related role models yet many struggle with obesity and self-care engagement. The purpose of this scoping review was to examine how the faith leader literature has defined self-care and examined obesity and obesity-related chronic disease. DATA SOURCE: Studies were identified through database (eg, PubMed, CINAHL, PsycINFO), backward, and grey literature (eg, dissertations) searches. INCLUSION/EXCLUSION CRITERIA: Studies published in English with participants who were 18 years or older and examined leaders across all faiths. Studies also included an examination of self-care behaviors among faith leaders within the context of obesity or obesity-related chronic diseases. DATA EXTRACTION/SYNTHESIS: Data synthesis was qualitative and informed by the six-step framework developed by Arksey and O'Malley (2005) as well as updated recommendations by Daudt et al (2013). Of the 418 studies identified and screened, 20 met the eligibility criteria. RESULTS: Studies were primarily cross-sectional and participants Christian faith-leaders in the US. Most studies did not define self-care or incorporate theory, but focused on vegetarian diets and physical activity engagement. Other self-care related behaviors (eg, sleep, days off), some unique to faith leaders (eg, sabbatical), were included but not systematically. CONCLUSIONS: Research with more diverse faith leaders and that uses theory is needed to guide development of strategies for engaging this population in self-care to reduce obesity and related chronic diseases.
Preliminary Examination of C-130 Flight Loads in Aerial Firefighting Operations
AIAA AVIATION 2022 Forum · 2022-06-20
articleSenior authorView Video Presentation: https://doi.org/10.2514/6.2022-4013.vid In-flight recorded data from two EC-130Q and two L-382G aircraft have been used to analyze their flight loads while flown as aerial firefighters. The data was collected over the calendar years 2016-2019 and consisted of 928 hours of flight time. The analysis has been limited to airborne phases of flight. Vertical accelerations have been filtered using a low-pass filter with an 8-Hz cutoff frequency to remove the any influence of the local or structural vibrations. Gust and maneuver load factor spectra have been developed for various altitude bands. The magnitude and the frequency of the incremental load factors have been shown to be most severe during the drop phases of firefighting missions. Flight loads spectra have been compared with those from various other operations.
AIDS Patient Care and STDs · 2022-09-29 · 8 citations
articleOpen access1st authorCorrespondingIn response to rising rates of bacterial sexually transmitted infections (STIs) in the United States, this evaluative study of the implementation of four evidence-based interventions was developed and implemented. In three STI and HIV high-incidence jurisdictions of the United States, nine federally funded Health Resources and Services Administration Ryan White HIV/AIDS Program clinical demonstration sites implemented (1) audio computer-assisted self-interview sexual history taking, (2) patient self-collection of urogenital and extragenital site chlamydia/gonorrhea nucleic acid amplification test specimens, (3) sexual and gender minority welcoming indicators, and (4) provider training, to make STI screening, testing, and treatment routine in their HIV primary care clinics. The priority populations of young adults, men who have sex with men, and sexual and gender minority patients were found to have risk behaviors identified in the self-interview sexual history, to prefer to self-collect urogenital and extragenital site specimens for STI testing, and to notice and like the sexual and gender minority welcoming indicators. Testing positive for a bacterial STI was significantly associated with using alcohol or recreational drugs before sex, being younger than 50 years, and having two or more sexual partners with other concurrent sexual partners. Of 255 cases of chlamydia, gonorrhea, and syphilis infections, only 13.73% of patients reported related symptoms when screened and tested.
AIDS Patient Care and STDs · 2022-09-29 · 11 citations
articleOpen accessSenior authorWith consistently rising rates of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) since 2014, the need for increased screening, testing, and treatment of bacterial sexually transmitted infections (STIs) in people at risk is clear. In this study, people with HIV were asked to complete a comprehensive audio computer-assisted self-interview sexual history at routine clinic-based laboratory visits every 3–6 months. The sexual health screening resulted in an automated summary of recommended bacterial STI tests. Self-collection of recommended extragenital CT/GC specimens was implemented to decrease the need for a provider to collect the specimen(s) and to give more control to the client. In total, extragenital CT/GC testing returned a 7.3% ( n = 11) test positivity for CT and/or GC, with the highest test positivity of 14% ( n = 7) among rectal swabs and 4% ( n = 4) for pharyngeal swabs. Urogenital testing for combined CT/GC returned a 4.8% ( n = 11) test positivity. All participants with extragenital CT/GC who underwent simultaneous urine testing returned discordant laboratory results, with urine collected at the same clinic visit resulting as negative. In addition, 7 of 11 (63.6%) of the positive extragenital GC/CT cases were asymptomatic. Therefore, extragenital site-specific testing was essential in appropriately diagnosing and treating CT and GC among participants. When extragenital STI testing was recommended, participants needing extragenital CT/GC specimens primarily chose self-collection after a brief demonstration. Error rates between self- versus provider-collected samples did not differ, and participants provided positive feedback on the intervention and self-collection process in satisfaction surveys taken at the end of each visit.
AIDS Patient Care and STDs · 2022-09-29 · 2 citations
articleOpen access1st authorCorrespondingFlight Loads Analysis of CL-415 Scoopers
AIAA AVIATION 2022 Forum · 2022-06-20
articleSenior authorView Video Presentation: https://doi.org/10.2514/6.2022-4015.vid Flight data recorded between 2015 and 2019 on a fleet of four CL-415 aircraft has been analyzed for the purpose of developing flight loads spectra. A low-pass filter has been used to remove the effects of local and structural vibrations from the recorded vertical load factors. Vertical load factors have been separated into gust and maneuver categories. Frequency of occurrence of the vertical load factors has been determined and expressed in the form of exceedance spectra for various altitude bands. The frequency of occurrence of the load factors has been shown to correlate well with altitude above ground level. The results have been compared with those of four other operations; single-engine-air tankers, ASM/leads, BAe-146/RJ-85 large air tankers, and a limited amount of agricultural spraying. The magnitude and the frequency of the load factors have been shown to be larger than all but those of ASM/lead flights.
Frequent coauthors
- 72 shared
Timothy J. Schmit
- 49 shared
Jordan Gerth
NOAA Office of Observations
- 49 shared
Scott S. Lindstrom
NOAA Office of Observations
- 42 shared
Anthony C. Bernal Ayala
- 12 shared
W. Paul Menzel
Karlsruhe University of Education
- 10 shared
Jun Li
- 10 shared
Mark J. Balas
Texas A&M University
- 8 shared
Christopher C. Schmidt
Education
Ph.D., Nursing
New York University
MSN, Nursing
Yale University
BA
Washington University
Post-Masters NP Certification, Nursing
Columbia University
- Resume-aware match score
- Save to shortlist
- AI-drafted outreach
See your match with John Nelson
PhdFit ranks faculty by your research interests, methods, and publications — grounded in their actual work, not templates.
- Free to start
- No credit card
- 30-second signup