39 results on '"Doty, S."'
Search Results
2. Origin of warm and hot gas emission from low-mass protostars: Herschel-HIFI observations of CO J=16-15. I. Line profiles, physical conditions, and H2O abundance
- Author
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Kristensen, L. E., van Dishoeck, E. F., Mottram, J. C., Karska, A., Yildiz, U. A., Bergin, E. A., Bjerkeli, P., Cabrit, S., Doty, S., Evans II, N. J., Gusdorf, A., Harsono, D., Herczeg, G. J., Johnstone, D., Jørgensen, J. K., van Kempen, T. A., Lee, J. -E., Maret, S., Tafalla, M., Visser, R., and Wampfler, S. F.
- Subjects
Astrophysics - Astrophysics of Galaxies ,Astrophysics - Solar and Stellar Astrophysics - Abstract
(Abridged) Through spectrally unresolved observations of high-J CO transitions, Herschel-PACS has revealed large reservoirs of warm (300 K) and hot (700 K) molecular gas around low-mass protostars. We aim to shed light on the excitation and origin of the CO ladder observed toward protostars, and on the water abundance in different physical components using spectrally resolved Herschel-HIFI data. Observations are presented of the highly excited CO line J=16-15 with Herschel-HIFI toward 24 low-mass protostellar objects. The spectrally resolved profiles show two distinct velocity components: a broad component with an average FWHM of 20 km/s, and a narrower component with a FWHM of 5 km/s that is often offset from the source velocity. The average rotational temperature over the entire profile, as measured from comparison between CO J=16-15 and 10-9 emission, is ~300 K. A radiative-transfer analysis shows that the average H2O/CO column-density ratio is ~0.02, suggesting a total H2O abundance of ~2x10^-6. Two distinct velocity profiles observed in the HIFI line profiles suggest that the CO ladder observed with PACS consists of two excitation components. The warm component (300 K) is associated with the broad HIFI component, and the hot component (700 K) is associated with the offset HIFI component. The former originates in either outflow cavity shocks or the disk wind, and the latter in irradiated shocks. The ubiquity of the warm and hot CO components suggests that fundamental mechanisms govern the excitation of these components; we hypothesize that the warm component arises when H2 stops being the dominant coolant. In this scenario, the hot component arises in cooling molecular H2-poor gas just prior to the onset of H2 formation. High spectral resolution observations of highly excited CO transitions uniquely shed light on the origin of warm and hot gas in low-mass protostellar objects., Comment: Accepted for publication in A&A
- Published
- 2017
- Full Text
- View/download PDF
3. Plant metabolism of chlorinated hydrocarbons — mechanisms and genetically engineered enhancements
- Author
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Strand, S.E., primary, Wang, X., additional, Newman, L.A., additional, Doty, S., additional, Shang, T., additional, and Gordon, M.P., additional
- Published
- 2020
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- View/download PDF
4. How Schools Can Promote Healthy Development for Newly Arrived Immigrant and Refugee Adolescents: Research Priorities
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McNeely, Clea A., Morland, Lyn, Doty, S. Benjamin, Meschke, Laurie L., Awad, Summer, Husain, Altaf, and Nashwan, Ayat
- Abstract
Background: The US education system must find creative and effective ways to foster the healthy development of the approximately 2 million newly arrived immigrant and refugee adolescents, many of whom contend with language barriers, limited prior education, trauma, and discrimination. We identify research priorities for promoting the school success of these youth. Methods: The study used the 4-phase priority-setting method of the Child Health and Nutrition Research Initiative. In the final stage, 132 researchers, service providers, educators, and policymakers based in the United States were asked to rate the importance of 36 research options. Results: The highest priority research options (range 1 to 5) were: evaluating newcomer programs (mean = 4.44, SD = 0.55), identifying how family and community stressors affect newly arrived immigrant and refugee adolescents' functioning in school (mean = 4.40, SD = 0.56), identifying teachers' major stressors in working with this population (mean = 4.36, SD = 0.72), and identifying how to engage immigrant and refugee families in their children's education (mean = 4.35, SD = 0.62). Conclusion: These research priorities emphasize the generation of practical knowledge that could translate to immediate, tangible benefits for schools. Funders, schools, and researchers can use these research priorities to guide research for the highest benefit of schools and the newly arrived immigrant and refugee adolescents they serve.
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- 2017
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5. Community Perspectives on Social Influences on Suicide Within a Native American Reservation
- Author
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Cwik, Mary, primary, Doty, S. Benjamin, additional, Hinton, Alexandra, additional, Goklish, Novalene, additional, Ivanich, Jerreed, additional, Hill, Kyle, additional, Lee, Angelita, additional, Tingey, Lauren, additional, and Craig, Mariddie, additional
- Published
- 2021
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- View/download PDF
6. sj-pdf-1-qhr-10.1177_10497323211045646 ��� Supplemental material for Community Perspectives on Social Influences on Suicide Within a Native American Reservation
- Author
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Cwik, Mary, Doty, S. Benjamin, Hinton, Alexandra, Goklish, Novalene, Ivanich, Jerreed, Hill, Kyle, Lee, Angelita, Tingey, Lauren, and Craig, Mariddie
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111099 Nursing not elsewhere classified ,111799 Public Health and Health Services not elsewhere classified ,160807 Sociological Methodology and Research Methods ,FOS: Health sciences ,FOS: Sociology - Abstract
Supplemental material, sj-pdf-1-qhr-10.1177_10497323211045646 for Community Perspectives on Social Influences on Suicide Within a Native American Reservation by Mary Cwik, S. Benjamin Doty, Alexandra Hinton, Novalene Goklish, Jerreed Ivanich, Kyle Hill, Angelita Lee, Lauren Tingey and Mariddie Craig in Qualitative Health Research
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- 2021
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7. A randomized-controlled trial of community- based transdiagnostic psychotherapy for veterans and internally displaced persons in Ukraine
- Author
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Bogdanov, Sergiy, Augustinavicius, Jura, Bass, Judith, Metz, Kristie, Skavenski, Stephanie, Singh, Namrita, Moore, Quincy, Haroz, Emily, Kane, Jeremy, Doty, S. Benjamin, Murray, Laura, Bolton, Paul, Bogdanov, Sergiy, Augustinavicius, Jura, Bass, Judith, Metz, Kristie, Skavenski, Stephanie, Singh, Namrita, Moore, Quincy, Haroz, Emily, Kane, Jeremy, Doty, S. Benjamin, Murray, Laura, and Bolton, Paul
- Abstract
Background. There is limited research on community-based mental health interventions in former Soviet countries despite different contextual factors from where most research has been conducted. Ongoing military conflict has resulted in many displaced persons and veterans and their families with high burdens of mental health problems. Lack of community-based services and poor uptake of existing psychiatric services led to the current trial to determine the effectiveness of the common elements treatment approach (CETA) on anxiety, depression, and posttraumatic stress symptoms (PTS) among conflict affected adults in Ukraine. Methods. We conducted a three-armed randomized-controlled trial of CETA delivered in its standard form (8–12 sessions), a brief form (five-sessions), and a wait-control condition. Eligible participants were displaced adults, army veterans and their adult family members with elevated depression and/or PTS and impaired functioning. Treatment was delivered by community-based providers trained in both standard and brief CETA. Outcome data were collected monthly. Results. There were 302 trial participants (n = 117 brief CETA, n = 129 standard CETA, n = 56 wait-controls). Compared with wait-controls, participants in standard and brief CETA experienced clinically and statistically significant reductions in depression, anxiety, and PTS and dysfunction (effect sizes d = 0.46–1.0–6). Comparing those who received standard CETA with brief CETA, the former reported fewer symptoms and less dysfunction with small-to-medium effect sized (d = 0.20–0.55). Conclusions. Standard CETA is more effective than brief CETA, but brief CETA also had significant effects compared with wait-controls. Given demonstrated effectiveness, CETA could be scaled up as an effective community-based approach.
- Published
- 2021
8. Community Perspectives on Social Influences on Suicide Within a Native American Reservation.
- Author
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Cwik, Mary, Doty, S. Benjamin, Hinton, Alexandra, Goklish, Novalene, Ivanich, Jerreed, Hill, Kyle, Lee, Angelita, Tingey, Lauren, and Craig, Mariddie
- Subjects
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SUICIDE , *NATIVE Americans , *SOCIAL support , *FOCUS groups , *INTIMACY (Psychology) , *MATHEMATICAL models , *RESEARCH methodology , *SOCIAL factors , *QUANTITATIVE research , *INTERVIEWING , *QUALITATIVE research , *THEORY , *DESCRIPTIVE statistics , *RESEARCH funding , *THEMATIC analysis , *STATISTICAL sampling , *BULLYING , *PSYCHOLOGICAL stress - Abstract
Relative to the general population, Native Americans (NA) bear a disproportionate burden of suicide-related mortality rates. NA males and females aged 15 to 24 years experience suicide rates nearly 3 times than the U.S. all races rates in this age group. Although efforts have been made to understand and reduce suicide in tribal communities, a large portion has focused on individual characteristics with less attention given to social factors that may also inform suicide. This article aims to build on a local conceptual model of NA youth suicide by examining additional potential social factors through qualitative interviews. Findings from the thematic analysis resulted in the identification of seven perceived social influences: contagion, violence and abuse, discrimination and bullying, negative expectations, spirituality, social support, and cultural strengths. Public health approaches to reduce suicide should consider local social factors that resonate with tribal communities to build resilience. [ABSTRACT FROM AUTHOR]
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- 2022
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9. Additional file 5: of Measuring implementation in global mental health: validation of a pragmatic implementation science measure in eastern Ukraine using an experimental vignette design
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Haroz, E., Bolton, P., Nguyen, A., Lee, C., Bogdanov, S., Bass, J., Singh, N., Doty, S., and Murray, L.
- Abstract
UkraineConsumerAssessmentTool_ FieldReady _ENG. Full quantitative assessment used in the study. (DOCX 114 kb)
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- 2019
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10. Additional file 1: of Measuring implementation in global mental health: validation of a pragmatic implementation science measure in eastern Ukraine using an experimental vignette design
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Haroz, E., Bolton, P., Nguyen, A., Lee, C., Bogdanov, S., Bass, J., Singh, N., Doty, S., and Murray, L.
- Abstract
Adult Qualitative_free list. Qualitative guide used for free listing activity. (DOC 46 kb)
- Published
- 2019
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11. Measuring implementation in global mental health: validation of a pragmatic implementation science measure in eastern Ukraine using an experimental vignette design
- Author
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Haroz, Emily, Bolton, Paul, Nguyen, A., Lee, C., Bogdanov, Sergiy, Bass, Judith, Singh, Namrita, Doty, S. Benjamin, Murray, Laura, Haroz, Emily, Bolton, Paul, Nguyen, A., Lee, C., Bogdanov, Sergiy, Bass, Judith, Singh, Namrita, Doty, S. Benjamin, and Murray, Laura
- Abstract
There is mounting evidence supporting the effectiveness of task-shifted mental health interventions in low- and middle-income countries (LMIC). However, there has been limited systematic scale-up or sustainability of these programs, indicating a need to study implementation. One barrier to progress is a lack of locally relevant and valid implementation measures. We adapted an existing brief dissemination and implementation (D&I) measure which includes scales for acceptability, appropriateness, feasibility and accessibility for local use and studied its validity and reliability among a sample of consumers in Ukraine.
- Published
- 2019
12. Testing the effectiveness and implementation of a brief version of the Common Elements Treatment Approach (CETA) in Ukraine: a study protocol for a randomized controlled trial
- Author
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Murray, Laura, Haroz, Emily, Doty, S. Benjamin, Singh, Namrita, Bogdanov, Sergiy, Bass, Judith, Dorsey, Shannon, Bolton, Paul, Murray, Laura, Haroz, Emily, Doty, S. Benjamin, Singh, Namrita, Bogdanov, Sergiy, Bass, Judith, Dorsey, Shannon, and Bolton, Paul
- Abstract
Background: Mental illness is a major public health concern. Despite progress understanding which treatments work, a significant treatment gap remains. An ongoing concern is treatment length. Modular, flexible, transdiagnostic approaches have been offered as one solution to scalability challenges. The Common Elements Treatment Approach (CETA) is one such approach and offers the ability to treat a wide range of common mental health problems. CETA is supported by two randomized trials from low- and middle-income countries showing strong effectiveness and implementation outcomes. Methods/design: This trial evaluates the effectiveness and implementation of two versions of CETA using a noninferiority design to test two primary hypotheses: (1) a brief five-session version of CETA (Brief CETA) will provide similar effectiveness for reducing the severity of common mental health problems such as depression, post-traumatic stress, impaired functioning, anxiety, and substance use problems compared with the standard 8–12-session version of CETA (Standard CETA); and (2) both Brief and Standard CETA will have superior impact on the outcomes compared to a waitlist control condition. For both hypotheses, the main effect will be assessed using longitudinal data and mixed-effects regression models over a 6-month period post baseline. A secondary aim includes exploration of implementation factors. Additional planned analyses will include exploration of: moderators of treatment impact by disorder severity and comorbidity; the impact of individual therapeutic components; and trends in symptom change between end of treatment and 6-month assessment for all participants. Discussion: This trial is the first rigorous study comparing a standard-length (8–12 sessions) modular, flexible, transdiagnostic, cognitive-behavioral approach to a shortened version of the approach (five sessions). Brief CETA entails “front-loading” with elements that research suggests are strong mechanisms of change. Th
- Published
- 2018
13. Adaptation and testing of an assessment for mental health and alcohol use problems among conflict-affected adults in Ukraine
- Author
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Doty, S. Benjamin, primary, Haroz, Emily E., additional, Singh, Namrita S., additional, Bogdanov, Sergiy, additional, Bass, Judith K., additional, Murray, Laura K., additional, Callaway, Karis L., additional, and Bolton, Paul A., additional
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- 2018
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14. 0987 Sleep Characteristics, Suicidal Ideation, and Attempts among Adults Aged 50+ with Depressive Symptoms in Five Middle-Income Countries
- Author
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Owusu, J T, primary, Doty, S B, additional, Bass, J K, additional, Wilcox, H C, additional, Gallo, J J, additional, and Spira, A P, additional
- Published
- 2018
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15. Origin of warm and hot gas emission from low-mass protostars: Herschel-HIFI observations of CO J = 16-15:I. Line profiles, physical conditions, and H2O abundance
- Author
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Kristensen, Lars Egstrøm, Van Dishoeck, E. F., Mottram, J. C., Karska, A., Ylldlz, U. A., Bergin, E. A., Bjerkeli, Per, Cabrit, S., Doty, S., Evans, N. J., Gusdorf, A., Harsono, D., Herczeg, G. J., Johnstone, D., Jørgensen, Jes Kristian, van Kempen, T. A., Lee, J. E., Maret, S., Tafalla, M., Visser, R., Wampfler, S. F., Kristensen, Lars Egstrøm, Van Dishoeck, E. F., Mottram, J. C., Karska, A., Ylldlz, U. A., Bergin, E. A., Bjerkeli, Per, Cabrit, S., Doty, S., Evans, N. J., Gusdorf, A., Harsono, D., Herczeg, G. J., Johnstone, D., Jørgensen, Jes Kristian, van Kempen, T. A., Lee, J. E., Maret, S., Tafalla, M., Visser, R., and Wampfler, S. F.
- Abstract
Context. Through spectrally unresolved observations of high-J CO transitions, Herschel Photodetector Array Camera and Spectrometer (PACS) has revealed large reservoirs of warm (300 K) and hot (700 K) molecular gas around low-mass protostars. The excitation and physical origin of this gas is still not understood. Aims. We aim to shed light on the excitation and origin of the CO ladder observed toward protostars, and on the water abundance in different physical components within protostellar systems using spectrally resolved Herschel-HIFI data. Methods. Observations are presented of the highly excited CO line J = 16-15 (Eup/kB = 750 K) with the Herschel Heterodyne Instrument for the Far Infrared (HIFI) toward a sample of 24 low-mass protostellar objects. The sources were selected from the Herschel "Water in Star-forming regions with Herschel" (WISH) and "Dust, Ice, and Gas in Time" (DIGIT) key programs. Results. The spectrally resolved line profiles typically show two distinct velocity components: a broad Gaussian component with an average FWHM of 20 km s-1 containing the bulk of the flux, and a narrower Gaussian component with a FWHM of 5 km s-1 that is often offset from the source velocity. Some sources show other velocity components such as extremely-high-velocity features or "bullets". All these velocity components were first detected in H2O line profiles. The average rotational temperature over the entire profile, as measured from comparison between CO J = 16-15 and 10-9 emission, is ~300 K. A radiative-transfer analysis shows that the average H2O/CO column-density ratio is ~0.02, suggesting a total H2O abundance of ~2 × 10-6, independent of velocity. Conclusions. Two distinct velocity profiles observed in the HIFI line profiles suggest that the high-J CO ladder observed with PACS consists of two excitation components. The warm PACS component (300 K) is associated with the
- Published
- 2017
16. Origin of warm and hot gas emission from low-mass protostars: Herschel-HIFI observations of CO J = 16–15
- Author
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Kristensen, L. E., primary, van Dishoeck, E. F., additional, Mottram, J. C., additional, Karska, A., additional, Yıldız, U. A., additional, Bergin, E. A., additional, Bjerkeli, P., additional, Cabrit, S., additional, Doty, S., additional, Evans, N. J., additional, Gusdorf, A., additional, Harsono, D., additional, Herczeg, G. J., additional, Johnstone, D., additional, Jørgensen, J. K., additional, van Kempen, T. A., additional, Lee, J.-E., additional, Maret, S., additional, Tafalla, M., additional, Visser, R., additional, and Wampfler, S. F., additional
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- 2017
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17. Diazotrophic Endophytes of Poplar and Willow for Growth Promotion of Rice Plants in Nitrogen‐Limited Conditions
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Kandel, S. L., primary, Herschberger, N., additional, Kim, S.H., additional, and Doty, S. L., additional
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- 2015
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18. DECOMPOSITION OF TENSOR PRODUCTS OF MODULAR IRREDUCIBLE REPRESENTATIONS FOR SL3: THE p ≥ 5 CASE
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Bowman, C., primary, Doty, S. R., additional, and Martin, S., additional
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- 2015
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19. Origin of warm and hot gas emission from low-mass protostars: Herschel-HIFI observations of CO J = 16-15 I. Line profiles, physical conditions, and H2O abundance.
- Author
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Kristensen, L. E., van Dishoeck, E. F., Mottram, J. C., Karska, A., Yıldız, U. A., Bergin, E. A., Bjerkeli, P., Cabrit, S., Doty, S., Evans II, N. J., Gusdorf, A., Harsono, D., Herczeg, G. J., Johnstone, D., Jørgensen, J. K., van Kempen, T. A., Lee, J.-E., Maret, S., Tafalla, M., and Visser, R.
- Subjects
PROTOSTARS ,STELLAR activity ,INTERSTELLAR molecules ,STAR formation ,STELLAR mass ,ASTROCHEMISTRY - Abstract
Context. Through spectrally unresolved observations of high-J CO transitions, Herschel Photodetector Array Camera and Spectrometer (PACS) has revealed large reservoirs of warm (300 K) and hot (700 K) molecular gas around low-mass protostars. The excitation and physical origin of this gas is still not understood. Aims. We aim to shed light on the excitation and origin of the CO ladder observed toward protostars, and on the water abundance in different physical components within protostellar systems using spectrally resolved Herschel-HIFI data. Methods. Observations are presented of the highly excited CO line J = 16-15 (E
up /kB = 750 K) with the Herschel Heterodyne Instrument for the Far Infrared (HIFI) toward a sample of 24 low-mass protostellar objects. The sources were selected from the Herschel "Water in Star-forming regions with Herschel" (WISH) and "Dust, Ice, and Gas in Time" (DIGIT) key programs. Results. The spectrally resolved line profiles typically show two distinct velocity components: a broad Gaussian component with an average FWHM of 20 km s-1 containing the bulk of the flux, and a narrower Gaussian component with a FWHM of 5 km s-1 that is often offset from the source velocity. Some sources show other velocity components such as extremely-high-velocity features or "bullets". All these velocity components were first detected in H2O line profiles. The average rotational temperature over the entire profile, as measured from comparison between CO J = 16-15 and 10-9 emission, is ~300 K. A radiative-transfer analysis shows that the average H2O/CO column-density ratio is ~0.02, suggesting a total H2O abundance of ~2 × 10-6 , independent of velocity. Conclusions. Two distinct velocity profiles observed in the HIFI line profiles suggest that the high-J CO ladder observed with PACS consists of two excitation components. The warm PACS component (300 K) is associated with the broad HIFI component, and the hot PACS component (700 K) is associated with the offset HIFI component. The former originates in either outflow cavity shocks or the disk wind, and the latter in irradiated shocks. The low water abundance can be explained by photodissociation. The ubiquity of the warm and hot CO components suggest that fundamental mechanisms govern the excitation of these components; we hypothesize that the warm component arises when H2 stops being the dominant coolant. In this scenario, the hot component arises in cooling molecular H2-poor gas just prior to the onset of H2 formation. High spectral resolution observations of highly excited CO transitions uniquely shed light on the origin of warm and hot gas in low-mass protostellar objects. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
20. Associations between non-discrimination and training policies and physicians' attitudes and knowledge about sexual and gender minority patients: a comparison of physicians from two hospitals.
- Author
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Jabson, Jennifer M., Mitchell, Jason W., Doty, S. Benjamin, and Doty, Benjamin
- Subjects
SEXUAL minorities ,PHYSICIANS' attitudes ,DISCRIMINATION in medical care ,HEALTH policy ,PHYSICIAN training ,COMPARATIVE studies ,ACADEMIC medical centers ,ATTITUDE (Psychology) ,EMPLOYEE orientation ,HEALTH attitudes ,HOSPITALS ,RESEARCH methodology ,MEDICAL cooperation ,MEDICAL personnel ,MINORITIES ,PSYCHOLOGY of physicians ,PREJUDICES ,RESEARCH ,HUMAN sexuality ,EVALUATION research ,CROSS-sectional method - Abstract
Background: Some physicians lack knowledge and awareness about health issues specific to sexual and gender minority (SGM) individuals. To help improve this, hospitals have implemented policies that mandate non-discrimination and training to promote sexual and gender minority health. There is limited evidence about how such policies relate to physicians' knowledge, attitudes, and gender and sexual minority affirmative practices.Method: A random sample of 1000 physicians was recruited from a complete list of physicians affiliated with one of two university Hospitals located in Tennessee and 180 physicians completed the survey concerning attitudes and knowledge about SGM individuals. Physicians were affiliated with either Hospital A that had not implemented policies for non-discrimination and training, or Hospital B that did.Results: Physicians held different attitudes about SGM patients than non-patients. Physicians affiliated with Hospital A held more negative attitudes about SGM individuals who were non-patients than physicians affiliated with Hospital B. There were no differences between the two hospitals in physicians' attitudes and knowledge about SGM patients.Conclusion: Policies that mandate non-discrimination and training as they currently exist may not improve physicians' attitudes and knowledge about SGM individuals. Additional research is needed to understand how these policies and trainings relate to physicians' SGM affirmative practices. [ABSTRACT FROM AUTHOR]- Published
- 2016
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21. High Energy Density Z-Pinch Plasmas Using Flow Stabilization.
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Shumlak, U., Golingo, R. P., Nelson, B. A., Bowers, C. A., Doty, S. A., Forbes, E. G., Hughes, M. C., Kim, B., Knecht, S. D., Lambert, K. K., Lowrie, W., Ross, M. P., and Weed, J. R.
- Subjects
PARTICLES (Nuclear physics) ,DENSE plasma focus ,Z-pinch ,FLOW stability (Fluid dynamics) ,SIMULATION methods & models - Abstract
The ZaP Flow Z-Pinch research project[1] at the University of Washington investigates the effect of sheared flows on MHD instabilities. Axially flowing Z-pinch plasmas are produced that are 100 cm long with a 1 cm radius. The plasma remains quiescent for many radial Alfvén times and axial flow times. The quiescent periods are characterized by low magnetic mode activity measured at several locations along the plasma column and by stationary visible plasma emission. Plasma evolution is modeled with high-resolution simulation codes - Mach2, WARPX, NIMROD, and HiFi. Plasma flow profiles are experimentally measured with a multi-chord ion Doppler spectrometer. A sheared flow profile is observed to be coincident with the quiescent period, and is consistent with classical plasma viscosity. Equilibrium is determined by diagnostic measurements: interferometry for density; spectroscopy for ion temperature, plasma flow, and density[2]; Thomson scattering for electron temperature; Zeeman splitting for internal magnetic field measurements[3]; and fast framing photography for global structure. Wall stabilization has been investigated computationally and experimentally by removing 70% of the surrounding conducting wall to demonstrate no change in stability behavior.[4] Experimental evidence suggests that the plasma lifetime is only limited by plasma supply and current waveform. The flow Z-pinch concept provides an approach to achieve high energy density plasmas,[5] which are large, easy to diagnose, and persist for extended durations. A new experiment, ZaP-HD, has been built to investigate this approach by separating the flow Z-pinch formation from the radial compression using a triaxial-electrode configuration. This innovation allows more detailed investigations of the sheared flow stabilizing effect, and it allows compression to much higher densities than previously achieved on ZaP by reducing the linear density and increasing the pinch current. Experimental results and scaling analyses will be presented. In addition to studying fundamental plasma science and high energy density physics, the ZaP and ZaP-HD experiments can be applied to laboratory astrophysics. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
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22. Measuring implementation in global mental health: validation of a pragmatic implementation science measure in eastern Ukraine using an experimental vignette design.
- Author
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Haroz, E. E., Bolton, P., Nguyen, A. J., Lee, C., Bogdanov, S., Bass, J., Singh, N. S., Doty, S. B., Murray, L., and Doty, Benjamin
- Subjects
MENTAL health services ,MENTAL health ,STATISTICAL reliability ,EXPERIMENTAL design ,INTERNALLY displaced persons ,CULTURAL adaptation - Abstract
Background: There is mounting evidence supporting the effectiveness of task-shifted mental health interventions in low- and middle-income countries (LMIC). However, there has been limited systematic scale-up or sustainability of these programs, indicating a need to study implementation. One barrier to progress is a lack of locally relevant and valid implementation measures. We adapted an existing brief dissemination and implementation (D&I) measure which includes scales for acceptability, appropriateness, feasibility and accessibility for local use and studied its validity and reliability among a sample of consumers in Ukraine.Methods: Local qualitative data informed adaptation of the measure and development of vignettes to test the reliability and validity. Participants were veterans and internally displaced persons (IDPs) recruited as part of a separate validity study of adapted mental health instruments. We examined internal consistency reliability, test-retest reliability, and construct and criterion validity for each scale on the measure. We randomly assigned half the participants to respond to a vignette depicting existing local psychiatric services which we knew were not well regarded, while the other half was randomized to a vignette describing a potentially more well-implemented mental health service. Criterion validity was assessed by comparing scores on each scale by vignette and by overall summary ratings of the programs described in the vignettes.Results: N = 169 participated in the qualitative study and N = 153 participated in the validity study. Qualitative findings suggested the addition of several items to the measure and indicated the importance of addressing professionalism/competency of providers in both the scales and the vignettes. Internal consistency reliabilities ranged from α = 0.85 for feasibility to α = 0.91 for appropriateness. Test-rest reliabilities were acceptable to good for all scales (rho: 0.61-0.79). All scales demonstrated substantial and significant differences in average scores by vignette assignment (ORs: 2.21-5.6) and overall ratings (ORs: 5.1-14.47), supporting criterion validity.Conclusions: This study represents an innovative mixed-methods approach to testing an implementation science measure in contexts outside the United States. Results support the reliability and validity of most scales for consumers in Ukraine. Challenges included large amounts of missing data due to participants' difficulties responding to questions about a hypothetical program. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
23. Testing the effectiveness and implementation of a brief version of the Common Elements Treatment Approach (CETA) in Ukraine: a study protocol for a randomized controlled trial.
- Author
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Murray, Laura K., Haroz, Emily E., Doty, S. Benjamin, Singh, Namrita S., Bass, Judith, Bogdanov, Sergey, Dorsey, Shannon, Bolton, Paul, and Doty, Benjamin
- Subjects
MENTAL illness ,RANDOMIZED controlled trials ,PUBLIC health ,MENTAL depression ,ANXIETY - Abstract
Background: Mental illness is a major public health concern. Despite progress understanding which treatments work, a significant treatment gap remains. An ongoing concern is treatment length. Modular, flexible, transdiagnostic approaches have been offered as one solution to scalability challenges. The Common Elements Treatment Approach (CETA) is one such approach and offers the ability to treat a wide range of common mental health problems. CETA is supported by two randomized trials from low- and middle-income countries showing strong effectiveness and implementation outcomes.Methods/design: This trial evaluates the effectiveness and implementation of two versions of CETA using a non-inferiority design to test two primary hypotheses: (1) a brief five-session version of CETA (Brief CETA) will provide similar effectiveness for reducing the severity of common mental health problems such as depression, post-traumatic stress, impaired functioning, anxiety, and substance use problems compared with the standard 8-12-session version of CETA (Standard CETA); and (2) both Brief and Standard CETA will have superior impact on the outcomes compared to a wait-list control condition. For both hypotheses, the main effect will be assessed using longitudinal data and mixed-effects regression models over a 6-month period post baseline. A secondary aim includes exploration of implementation factors. Additional planned analyses will include exploration of: moderators of treatment impact by disorder severity and comorbidity; the impact of individual therapeutic components; and trends in symptom change between end of treatment and 6-month assessment for all participants.Discussion: This trial is the first rigorous study comparing a standard-length (8-12 sessions) modular, flexible, transdiagnostic, cognitive-behavioral approach to a shortened version of the approach (five sessions). Brief CETA entails "front-loading" with elements that research suggests are strong mechanisms of change. The study design will allow us to draw conclusions about the effects of both Brief and Standard CETA as well as which elements are integral to their mechanisms of action, informing future implementation and fidelity efforts. The results from this trial will inform future dissemination, implementation and scale-up of CETA in Ukraine and contribute to our understanding of the effects of modular, flexible, transdiagnostic approaches in similar contexts.Trial Registration: ClinicalTrials.gov, ID: NCT03058302 (U.S. National Library of Medicine). Registered on 20 February 2017. [ABSTRACT FROM AUTHOR]- Published
- 2018
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24. Outcomes in Minor Salivary Gland Tumors-A 20+ Year Tertiary-Care Center Experience.
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Zhang ES, Doty S, Woody N, Bottalico D, Ku JA, Prendes B, Koyfman SA, Campbell SR, Silver N, Scharpf J, and Lamarre ED
- Abstract
Objective: Minor salivary gland carcinomas are challenging to study due to their rarity and heterogeneity. We aim to further characterize clinical characteristics, treatment, and outcomes over 20 years within a single institution., Study Design: Retrospective chart review was conducted on 210 patients who received primary treatment for minor salivary gland malignancy from 2000 to 2022., Setting: Single tertiary-care center., Methods: Multivariable Cox proportional hazards method was used to examine the relationship between pre-determined clinically important variables and outcomes., Results: Five-year overall survival was 77.8% (72.0-84.1). Advanced clinical T stage portended over a 2 times higher risk of death and recurrence. High pathologic grade was associated with a near 3 times higher risk of death and recurrence. There was a predominance of occult nodal metastases in level II for oral cavity and oropharynx site tumors., Conclusion: Clinical T stage and grade were important for overall survival, local, regional, and distant recurrence-free survival. Occult nodal metastases occurred most often in level II., Competing Interests: SAK receives research funding from Merck, BMS, Regeneron, and Castle Biosciences and consultant fees from Merck, Regeneron, and Castle Biosciences. He receives Honoraria from Uptodate. All other authors deny any conflict of interest., (© 2024 The Author(s). OTO Open published by Wiley Periodicals LLC on behalf of American Academy of Otolaryngology–Head and Neck Surgery Foundation.)
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- 2024
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25. AOP Report: Development of an adverse outcome pathway for deposition of energy leading to bone loss.
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Sandhu S, Keyworth M, Karimi-Jashni S, Alomar D, Smith BJ, Kozbenko T, Doty S, Hocking R, Hamada N, Reynolds RJ, Scott RT, Costes SV, Beheshti A, Yauk C, Wilkins RC, and Chauhan V
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- Humans, Osteoblasts radiation effects, Animals, Bone Density radiation effects, Osteoclasts radiation effects, Osteoclasts metabolism, Radiation Exposure adverse effects, Osteoporosis etiology, Adverse Outcome Pathways
- Abstract
Bone loss, commonly seen in osteoporosis, is a condition that entails a progressive decline of bone mineral density and microarchitecture, often seen in post-menopausal women. Bone loss has also been widely reported in astronauts exposed to a plethora of stressors and in patients with osteoporosis following radiotherapy for cancer. Studies on mechanisms are well documented but the causal connectivity of events to bone loss development remains incompletely understood. Herein, the adverse outcome pathway (AOP) framework was used to organize data and develop a qualitative AOP beginning from deposition of energy (the molecular initiating event) to bone loss (the adverse outcome). This qualitative AOP was developed in collaboration with bone loss research experts to aggregate relevant findings, supporting ongoing efforts to understand and mitigate human system risks associated with radiation exposures. A literature review was conducted to compile and evaluate the state of knowledge based on the modified Bradford Hill criteria. Following review of 2029 studies, an empirically supported AOP was developed, showing the progression to bone loss through many factors affecting the activities of bone-forming osteoblasts and bone-resorbing osteoclasts. The structural, functional, and quantitative basis of each proposed relationship was defined, for inference of causal changes between key events. Current knowledge and its gaps relating to dose-, time- and incidence-concordance across the key events were identified, as well as modulating factors that influence linkages. The new priorities for research informed by the AOP highlight areas for improvement to enable development of a quantitative AOP used to support risk assessment strategies for space travel or cancer radiotherapy., (© 2024 The Author(s). Environmental and Molecular Mutagenesis published by Wiley Periodicals LLC on behalf of Environmental Mutagenesis and Genomics Society.)
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- 2024
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26. A Reproducible Peritonsillar Abscess Incision and Drainage Model for Junior Trainees.
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Marouf A, Doty S, Quereshy HA, Johnson BR, Cabrera CI, Mowry S, and Tamaki A
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- Humans, Simulation Training methods, Manikins, Models, Anatomic, Education, Medical, Graduate methods, Peritonsillar Abscess surgery, Internship and Residency methods, Drainage methods, Clinical Competence, Otolaryngology education
- Abstract
Objectives: To describe the design and construction of a reproducible, low-cost, peritonsillar abscess (PTA) incision and drainage simulator and assess its impact on trainees' confidence., Methods: The 2-part simulator we developed consisted of a manikin head with a fixed, partially open mouth and a modular PTA mold. The mold is created by injecting a lotion and water mixture into plastic bubbles, followed by silicone solidification. Neodymium magnets secure the silicone-abscess packet to the manikin's palate. The simulator was utilized during an academic otolaryngology residency training program Annual Otolaryngology Boot Camp. A self-assessment Likert scale questionnaire was used to evaluate participants' confidence before and after simulator training. Fourth-year medical students and junior (first and second year) residents who participated in the boot camp and agreed to complete the evaluation were included., Results: Three medical students, 17 PGY-1, and 10 PGY-2 residents agreed to complete the evaluation. All trainees agreed the model was useful for learning skills. The overall post-training confidence Likert scores of participants, and PGY-1 residents in particular, significantly improved compared to their pre-training scores ( P < .001)., Conclusions: Our model offers an affordable and efficient training opportunity for residents to enhance their competence in managing PTAs. This approach, with its simple yet effective design and low production cost, shows potential for scalability on a broader scale., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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27. A Systematic Review of Peritonsillar Abscess Simulators: Enhancing Training and Identifying the Need for Standardization.
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Marouf A, Doty S, Quereshy HA, Johnson BR, Cabrera CI, Mowry S, and Tamaki A
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- Humans, Internship and Residency methods, Models, Anatomic, Peritonsillar Abscess surgery, Peritonsillar Abscess therapy, Drainage methods, Clinical Competence, Simulation Training methods
- Abstract
Objectives: To systematically review the literature regarding previously described peritonsillar abscess (PTA) drainage simulation., Data Sources: PubMed, Scopus, Web of Science, Ovid, and Cochrane., Review Methods: A search of the abovementioned databases was performed in August 2022 using the terms "peritonsillar abscess/quinsy," "incision/drainage/aspiration," and "simulation." No time restrictions were applied. We included studies that clearly described how their PTA models were built and underwent validation from experts and/or evaluation from trainees. Articles describing a model only without any evaluation and reports in languages other than English were excluded., Results: Our search initially yielded 80 articles after duplicate removal, 10 of which met our criteria and were included. Two studies trained participants on both needle aspiration and incision and drainage (I&D), four studies on I&D only, and four on needle aspiration only. 87.5% to 100% of junior residents reported minimal exposure to PTA prior to simulation. Five studies provided some form of validation to their models. The value of the simulators to train participants on skills received better appreciation than their anatomical fidelity. The perceived confidence level of trainees in managing PTA, which was assessed in 7 studies, substantially improved after training., Conclusion: PTA simulation improves the confidence of trainees to perform PTA drainage. There is, however, a lack of standardization and evidence regarding transfer validity among PTA simulators. The development of a standardized PTA simulator could allow for more widespread use and increase resident comfort with this procedure in a pre-clinical setting., Level of Evidence: NA Laryngoscope, 134:2495-2501, 2024., (© 2023 The Authors. The Laryngoscope published by Wiley Periodicals LLC on behalf of The American Laryngological, Rhinological and Otological Society, Inc.)
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- 2024
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28. Curtobacterium salicis sp. nov., isolated from willow tree stems in Washington state.
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Freeman J, Firrincieli A, Baker D, and Doty S
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- Trees, Sequence Analysis, DNA, Washington, Fatty Acids chemistry, Succinates, Phylogeny, RNA, Ribosomal, 16S genetics, DNA, Bacterial genetics, Bacterial Typing Techniques, Phospholipids chemistry, Salix genetics, Actinomycetales
- Abstract
Curtobacterium sp. strain WW7 is a Gram-positive, non-motile, orange rod-shaped bacterium isolated from branches of wild willow (Salix sitchensis) trees. The WW7
T strain has optimum growth in the temperature range between 25 and 30 °C, a pH range of 6-7.7, and tolerates up to 5.5% (w/v) of NaCl. The genome sequencing of strain WW7T revealed a genome size of approximately 3.8 Mbp and a G + C content of 71.3 mol%. The phylogenomic analyses support the WW7T affiliation to a novel Curtobacterium lineage, with Curtobacterium herbarum being the closest type-strain. Chemotaxonomic analysis indicates that the carbon sources assimilation profile of strain WW7T was similar to the type strains, i.e. Curtobacterium luteum, Curtobacterium albidum, and Curtobacterium flaccumfaciens, while no assimilation of the organic acids succinate, alpha-ketobutyrate, mono methyl-succinate, and lactate was observed. Finally, fatty acid methyl ester analysis identifies anteiso-C15:0 and anteiso-C17:0 as major cellular fatty acids which is a common feature for members of the Curtobacterium genus. Based on the results of phylogenomic and chemotaxonomic analyses, strain WW7T represents a novel Curtobacterium lineage, for which the name Curtobacterium salicis sp. nov. is proposed. The type strain is WW7T (DSM 34805T -NRRL B-68078T )., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)- Published
- 2024
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29. Bridging Time-series Image Phenotyping and Functional-Structural Plant Modeling to Predict Adventitious Root System Architecture.
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Parasurama S, Banan D, Yun K, Doty S, and Kim SH
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Root system architecture (RSA) is an important measure of how plants navigate and interact with the soil environment. However, current methods in studying RSA must make tradeoffs between precision of data and proximity to natural conditions, with root growth in germination papers providing accessibility and high data resolution. Functional-structural plant models (FSPMs) can overcome this tradeoff, though parameterization and evaluation of FSPMs are traditionally based in manual measurements and visual comparison. Here, we applied a germination paper system to study the adventitious RSA and root phenology of Populus trichocarpa stem cuttings using time-series image-based phenotyping augmented by FSPM. We found a significant correlation between timing of root initiation and thermal time at cutting collection ( P value = 0.0061, R
2 = 0.875), but little correlation with RSA. We also present a use of RhizoVision [1] for automatically extracting FSPM parameters from time series images and evaluating FSPM simulations. A high accuracy of the parameterization was achieved in predicting 2D growth with a sensitivity rate of 83.5%. This accuracy was lost when predicting 3D growth with sensitivity rates of 38.5% to 48.7%, while overall accuracy varied with phenotyping methods. Despite this loss in accuracy, the new method is amenable to high throughput FSPM parameterization and bridges the gap between advances in time-series phenotyping and FSPMs., Competing Interests: Competing interests: The authors declare that there is no conflict of interest regarding the publication of this article., (Copyright © 2023 Sriram Parasurama et al.)- Published
- 2023
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30. Role of mitochondria in the myopathy of juvenile dermatomyositis and implications for skeletal muscle calcinosis.
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Duvvuri B, Pachman LM, Hermanson P, Wang T, Moore R, Ding-Hwa Wang D, Long A, Morgan GA, Doty S, Tian R, Sancak Y, and Lood C
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- Humans, Muscle, Skeletal pathology, Inflammation pathology, Mitochondria pathology, Dermatomyositis, Muscular Diseases pathology, Calcinosis drug therapy
- Abstract
Objectives: To elucidate mechanisms contributing to skeletal muscle calcinosis in patients with juvenile dermatomyositis., Methods: A well-characterized cohorts of JDM (n = 68), disease controls (polymyositis, n = 7; juvenile SLE, n = 10, and RNP + overlap syndrome, n = 12), and age-matched health controls (n = 17) were analyzed for circulating levels of mitochondrial (mt) markers including mtDNA, mt-nd6, and anti-mitochondrial antibodies (AMAs) using standard qPCR, ELISA, and novel-in-house assays, respectively. Mitochondrial calcification of affected tissue biopsies was confirmed using electron microscopy and energy dispersive X-ray analysis. A human skeletal muscle cell line, RH30, was used to generate an in vitro calcification model. Intracellular calcification is measured by flow cytometry and microscopy. Mitochondria were assessed for mtROS production and membrane potential by flow cytometry and real-time oxygen consumption rate by Seahorse bioanalyzer. Inflammation (interferon-stimulated genes) was measured by qPCR., Results: In the current study, patients with JDM exhibited elevated levels of mitochondrial markers associated with muscle damage and calcinosis. Of particular interest are AMAs predictive of calcinosis. Human skeletal muscle cells undergo time- and dose-dependent accumulation of calcium phosphate salts with preferential localization to mitochondria. Calcification renders skeletal muscle cells mitochondria stressed, dysfunctional, destabilized, and interferogenic. Further, we report that inflammation induced by interferon-alpha amplifies mitochondrial calcification of human skeletal muscle cells via the generation of mitochondrial reactive oxygen species (mtROS)., Conclusions: Overall, our study demonstrates the mitochondrial involvement in the skeletal muscle pathology and calcinosis of JDM and mtROS as a central player in the calcification of human skeletal muscle cells. Therapeutic targeting of mtROS and/or upstream inducers, such as inflammation, may alleviate mitochondrial dysfunction, leading to calcinosis. AMAs can potentially identify patients with JDM at risk for developing calcinosis., Competing Interests: Declaration of competing interest None declared., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
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31. Feasibility of gabapentin as an intervention for neurorecovery after an acute spinal cord injury: Protocol.
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Wilson JR, Doty S, Petitt JC, El-Abtah M, Francis JJ, Sharpe MG, Kelly ML, and Anderson KD
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Introduction: This protocol is describing the first ever prospective, mock-efficacy, dose exploration trial design testing the feasibility of administering gabapentin in the acute setting as an intervention for neurorecovery. Gabapentin is an FDA-approved medication for treating seizures and postherpetic neuralgia and is used broadly off-label for neuropathic pain management for many conditions, including spinal cord injury. Emerging data suggests that when given early after spinal cord injury onset and in low-medium doses, gabapentin may have properties that promote recovery of neurological function. The objective of this trial is to assess the feasibility of conducting an efficacy trial in which gabapentin is started early after injury, is restricted in its dose, and is not used for pain management., Methods and Analysis: Forty-two people aged 18 years or older with any level and any severity of spinal cord injury induced by a trauma will be enrolled, randomized, and have the first dose of study medication by 120 h post-injury onset. Participants will be randomly assigned to one of three groups: 600, 1,800 mg/day gabapentin, or placebo. Study medication will be given for a 90-day duration. Blinded assessments will be obtained at 7 days post-injury (baseline), 30 days post-injury (interim), after the 90-day treatment duration/approximately 3 months post-injury (end of treatment), and at 6 months post-injury (end of study). The key analysis parameters will evaluate feasibility of recruitment of target population, delivery of drug treatment protocol, maintenance of blinding, and retention of participants., Discussion: Outputs from this trial will inform research and clinical practice on the effects of manipulating gabapentin for non-pain management purposes in the acute setting and will guide the development of a properly powered efficacy trial of gabapentin as an intervention for neurorecovery in spinal cord injury., Ethics and Dissemination: The study was approved by the MetroHealth Institutional Review Board (IRB21-00609) and registered at clinicaltrials.gov prior to enrolling any participants. Dissemination will include peer-reviewed publications, presentations at professional conferences and in the community, and through other healthcare and public venues., Clinical Trial Registration: www.ClinicalTrials.gov, identifier: NCT05302999; protocol version 1.1 approved 05/23/2022., Trial Funding: National Institute on Disability, Independent Living and Rehabilitation Research., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Wilson, Doty, Petitt, El-Abtah, Francis, Sharpe, Kelly and Anderson.)
- Published
- 2022
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32. Neuromechanical Integration of Pelvic-Thoracic Rotation among Youth Baseball Throwers.
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Winters E, Doty S, Lott M, and Baker J
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The kinetic sequencing involved in the overhead throw anticipates an orchestration of body movement in which the more proximal segments of the body initiate movement prior to the more distal segment. This investigation explored neuromuscular and kinematic characteristics associated with one aspect of this kinetic sequencing, pelvic-to-thoracic rotation. Neuromuscular activation was recorded using surface electromyography and kinematic data was acquired using 3D videography. Specific objectives included 1) to describe the maximum angulation between the pelvic and thoracic body segments (X
max angle ), 2) to test the hypothesis that glove-side external oblique peak neuromuscular activation (GEOPA) occurs before Xmax angle , 3) to test the hypothesis that throwing-side external oblique peak neuromuscular activation (TEOPA) occurs following Xmax angle . Results show the mean Xmax angle to be 45.96 degrees (±10.83). The time of mean GEOPA (2.3653 sec±0.9094) occurred following the time of mean Xmax angle (2.2793 sec,±0.9026, p<0.01), thus refuting the first hypothesis. The time of mean TEOPA (2.3658 sec,±0.8978) occurred following the time of mean Xmax angle (2.2793 sec,±0.9026, p<0.01), thus confirming the second hypothesis. Results suggest that youth baseball participants may not adequately utilize the core of the body to fully benefit from the optimal kinetic sequencing postulated within the literature., Competing Interests: Conflict of Interest The authors declare that they have no conflict of interest., (The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).)- Published
- 2022
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33. Broadening Our Bandwidth: A Multiple Case Report of Expanded Use of Telehealth Technology to Perform Wound Consultations During the COVID-19 Pandemic.
- Author
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Engels D, Austin M, Doty S, Sanders K, and McNichol L
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- COVID-19, Coronavirus Infections prevention & control, Coronavirus Infections transmission, Female, Humans, Male, Middle Aged, Pandemics prevention & control, Pneumonia, Viral prevention & control, Pneumonia, Viral transmission, Pressure Ulcer etiology, Pressure Ulcer pathology, SARS-CoV-2, Betacoronavirus, Coronavirus Infections epidemiology, Pneumonia, Viral epidemiology, Pressure Ulcer therapy, Remote Consultation organization & administration
- Abstract
Background: Managing patients during the coronavirus disease-2019 (COVID-19) pandemic, and the associated severe acute respiratory syndrome-related coronavirus-2 (SARS-CoV-2) in particular, required the nimble responsiveness for which WOC nurses are known. Problem-solving skills were needed to continue the level of WOC nursing services expected by patients, families, and professional colleagues, while reducing the hours we were physically present at our clinical facility. In order to respond to these demands, our team realized it must create an innovative approach to provide efficient, cost-effective consultations during this global crisis. This Challenges in Practice article summarizes our experience with use of telemedicine technologies to perform remote consultations within the acute care setting., Cases: Case 1 was a 52-year-old woman with a history of paraplegia. She had several pressure injuries but had not received topical care for these wounds prior to admission. A consultation for the WOC nurse was requested and performed via telehealth services on a day our team was working off-site. This case illustrates the process our team used to perform a virtual consultation and demonstrates how the use of images placed in the electronic medical record aided in developing an effective plan of care. Case 2 was a 48-year-old man who tested positive for COVID-19. He developed bilateral unstageable pressure injuries on his cheeks after being placed in the prone position for a prolonged period while critically ill. This case describes multiple technologic platforms used for telemedicine consults in a patient with COVID-19 requiring isolation., Conclusions: Remote consultation by WOC nurses was possible in our healthcare system because of previous experience using telemedicine technology and well-established collaborative relationships with providers and bedside nurses. By expanding our use of telemedicine technology, we were able to provide ongoing care to a patient without COVID-19 who had WOC consultation needs, and a patient with strict isolation demands due to COVID-19.
- Published
- 2020
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34. Association of sleep characteristics with suicidal ideation and suicide attempt among adults aged 50 and older with depressive symptoms in low- and middle-income countries.
- Author
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Owusu JT, Doty SB, Adjaye-Gbewonyo D, Bass JK, Wilcox HC, Gallo JJ, and Spira AP
- Subjects
- Aged, Aged, 80 and over, Cross-Sectional Studies, Developing Countries, Female, Humans, Male, Middle Aged, Risk Factors, Self Report, Depression epidemiology, Sleep, Suicidal Ideation, Suicide, Attempted statistics & numerical data
- Abstract
Objectives: Investigate the association of sleep characteristics with suicidal ideation and suicide attempt among middle-aged and older adults with depressive symptoms in five low- and middle-income countries (LMICs)., Design: Cross-sectional., Setting: China, Ghana, India, Russia, and South Africa., Participants: Adults aged ≥50 years with depressive symptoms from the World Health Organization (WHO) Study on Global AGEing and Adult Health (n=2,040)., Measurements: Predictors were self-reported average sleep duration for the past 2 nights (<7 hours (shorter), 7 to <9 hours (reference), ≥9 hours (longer)), sleep quality for the past 2 nights (moderate/good/very good [both nights], poor/very poor [≥1 night]), past-month insomnia symptoms (none/mild, moderate, severe/extreme), and past-day daytime sleepiness. Outcomes were past-year suicidal ideation and suicide attempt. Analyses were adjusted for age, sex, household wealth, marital status, self-rated health, cognitive performance, number of depressive symptoms, and country of residence., Results: Participants with poor/very poor sleep quality ≥1 night had greater odds of suicidal ideation (vs. moderate/good/very good sleep quality both nights). Participants with moderate and severe/extreme insomnia symptoms had greater odds of suicidal ideation and suicide attempt (vs. none/mild insomnia symptoms). In moderation analyses, greater insomnia symptoms were associated with higher odds of suicidal ideation among women only and those aged 60-60 years and ≥80 years only., Conclusions: Among middle-aged and older adults with depressive symptoms in LMICs, sleep characteristics are markers of-and potential contributors to-suicidal ideation and suicide attempt, and there was evidence of moderation by age and sex. Interventions aimed at preventing suicide-related outcomes in these populations should consider the role of sleep., (Copyright © 2019 National Sleep Foundation. All rights reserved.)
- Published
- 2020
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35. Neutrophil Extracellular Traps in Tissue and Periphery in Juvenile Dermatomyositis.
- Author
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Duvvuri B, Pachman LM, Morgan G, Khojah AM, Klein-Gitelman M, Curran ML, Doty S, and Lood C
- Subjects
- Child, Humans, Dermatomyositis immunology, Extracellular Traps, Neutrophils physiology, Neutrophils ultrastructure
- Abstract
Objective: Neutrophils are key immune cells participating in host defense through several mechanisms, including the formation of neutrophil extracellular traps (NETs). This study was undertaken to investigate the role of neutrophils in juvenile dermatomyositis (JDM)., Methods: Electron microscopy was used to identify neutrophils in tissue. NETs were also imaged using fluorescence microscopy and quantified using a myeloperoxidase-DNA enzyme-linked immunosorbent assay (ELISA) in plasma obtained from healthy children (n = 20), disease controls (n = 29), JDM patients (n = 66), and JDM patients with history of calcifications (n = 20). Clinical data included disease activity scores and complement C4 levels. Levels of immune complexes (ICs) and calprotectin were analyzed using ELISA., Results: Using electron microscopy, neutrophils were found to infiltrate affected muscle tissue, engulfing deposited calcium crystals. Uptake of the crystals led to neutrophil activation (P < 0.01) and subsequent phosphatidylinositol 3-kinase- and NADPH oxidase-dependent but peptidylarginine deiminase 4-independent formation of NETs, which contained mitochondrial DNA (P < 0.05), as confirmed in vivo (P < 0.001) and in vitro (P < 0.01). Peripheral NET levels were associated with calcinosis (P = 0.01), ICs (P = 0.008), and interleukin-8 levels (P = 0.004). Children with JDM had impaired NET clearance (P = 0.01), associated with autoantibody profiles including melanoma differentiation-associated protein 5 (P = 0.005), and depressed complement C4 levels (r = -0.72, P = 0.002). Furthermore, children with JDM showed evidence of neutrophil activation, with elevated levels of peroxidase activity (P = 0.02) and calprotectin (P < 0.01), which were associated with disease activity (P = 0.007), and dyslipidemia (odds ratio 4.7, P < 0.05)., Conclusion: We found novel mechanisms of both calcium crystal-mediated neutrophil activation and cell death in JDM pathophysiology. Targeting this pathway may reduce the frequency and extent of calcinosis, as well as prevent long-term development of comorbidities, including atherosclerosis., (© 2019, American College of Rheumatology.)
- Published
- 2020
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36. Simvastatin Exposure and Rotator Cuff Repair in a Rat Model.
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Deren ME, Ehteshami JR, Dines JS, Drakos MC, Behrens SB, Doty S, and Coleman SH
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- Animals, Biomechanical Phenomena, Disease Models, Animal, Male, Orthopedic Procedures, Rats, Rats, Sprague-Dawley, Rotator Cuff drug effects, Tendons pathology, Wound Healing physiology, Hydroxymethylglutaryl-CoA Reductase Inhibitors pharmacology, Osteogenesis drug effects, Rotator Cuff surgery, Rotator Cuff Injuries surgery, Simvastatin pharmacology, Wound Healing drug effects
- Abstract
Simvastatin is a common medication prescribed for hypercholesterolemia that accelerates local bone formation. It is unclear whether simvastatin can accelerate healing at the tendon-bone interface after rotator cuff repair. This study was conducted to investigate whether local and systemic administration of simvastatin increased tendon-bone healing of the rotator cuff as detected by maximum load to failure in a controlled animal-based model. Supraspinatus tendon repair was performed on 120 Sprague-Dawley rats. Sixty rats had a polylactic acid membrane overlying the repair site. Of these, 30 contained simvastatin and 30 did not contain medication. Sixty rats underwent repair without a polylactic acid membrane. Of these, 30 received oral simvastatin (25 mg/kg/d) and 30 received a regular diet. At 4 weeks, 5 rats from each group were killed for histologic analysis. At 8 weeks, 5 rats from each group were killed for histologic analysis and the remaining 20 rats were killed for biomechanical analysis. One rat that received oral simvastatin died of muscle necrosis. Average maximum load to failure was 35.2±6.2 N for those receiving oral simvastatin, 36.8±9.0 N for oral control subjects, 39.5±12.8 N for those receiving local simvastatin, and 39.1±9.3 N for control subjects with a polylactic acid membrane. No statistically significant differences were found between any of the 4 groups (P>.05). Qualitative histologic findings showed that all groups showed increased collagen formation and organization at 8 weeks compared with 4 weeks, with no differences between the 4 groups at each time point. The use of systemic and local simvastatin offered no benefit over control groups. [Orthopedics. 2017; 40(2):e288-e292.]., (Copyright 2016, SLACK Incorporated.)
- Published
- 2017
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37. Healthcare Factors for Obtaining a Mammogram in Latinas With a Variable Mammography History.
- Author
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Scheel JR, Molina Y, Coronado G, Bishop S, Doty S, Jimenez R, Thompson B, Lehman CD, and Beresford SA
- Subjects
- Adult, Aged, Breast Neoplasms ethnology, Cross-Sectional Studies, Early Detection of Cancer statistics & numerical data, Female, Hispanic or Latino statistics & numerical data, Humans, Middle Aged, Patient Acceptance of Health Care statistics & numerical data, Socioeconomic Factors, Surveys and Questionnaires, Time Factors, Washington ethnology, Attitude to Health ethnology, Breast Neoplasms diagnosis, Breast Neoplasms psychology, Early Detection of Cancer psychology, Hispanic or Latino psychology, Patient Acceptance of Health Care psychology
- Abstract
Purpose/objectives: To understand the relationship between mammography history and current thoughts about obtaining a mammogram among Latinas and examine the mediation effects of several healthcare factors. ., Design: Cross-sectional survey. ., Setting: Federally qualified health centers (Sea Mar Community Health Centers) in western Washington. ., Sample: 641 Latinas nonadherent and adherent with screening mammography. ., Methods: Baseline survey data from Latinas with a mammography history of never, not recent (more than two years), or recent (less than two years) were analyzed. Preacher and Hayes methods were used to estimate the mediation effect of healthcare factors. ., Main Research Variables: The survey assessed mammography history, sociodemographic and healthcare factors, and current thoughts about obtaining a mammogram. ., Findings: Latinas' thoughts about obtaining a mammogram were associated with mammography history. Having had a clinical breast examination mediated 70% of differences between Latinas with a never and recent mammography history. Receipt of a provider recommendation mediated 54% of differences between Latinas with and without a recent mammography history. ., Conclusions: These findings emphasize the importance of the patient-provider relationship during a clinic visit and help inform how nurses may be incorporated into subsequent screening mammography interventions tailored to Latinas. ., Implications for Nursing: As providers, health educators, and researchers, nurses have critical roles in encouraging adherence to screening mammography guidelines among Latinas.
- Published
- 2017
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38. Social acceptability of phytoremediation: The role of risk and values.
- Author
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Weir E and Doty S
- Subjects
- Adult, Aged, Aged, 80 and over, Biodegradation, Environmental, Female, Humans, Male, Middle Aged, Northwestern United States, Risk Assessment, Young Adult, Environmental Restoration and Remediation standards, Perception, Social Values, Soil Pollutants analysis
- Abstract
A former gas production site that was converted to a public park was chosen as the research location for the present study. Some of the contaminants at the site have been remediated; however, much of the soil is still contaminated with polycyclic aromatic hydrocarbons (PAHs). PAHs are toxic pollutants that have been shown to have numerous negative health effects. The primary form of remediation at the site has been capping, which is usually considered a temporary remediation strategy since it does not remove contaminants from the site but simply covers them, and this requires repeated re-capping efforts. Endophyte-assisted phytoremediation using willow shrubs is an alternative remediation strategy that could improve soil quality and permanently reduce contaminant levels in the soil. The goal of the present study was to explore the social acceptability of utilizing phytoremediation strategies. Surveys were used to explore public perceptions of the park and of using phytoremediation to clean up existing contamination. Results indicated a high level of social acceptability of phytoremediation at the park. Additionally, ecocentrism was shown to be a significant predictor of phytoremediation acceptability. Risk and anthropocentrism were not significant predictors of acceptability. Results suggest that messages intended to encourage the use and acceptability of phytoremediation should focus on the environmental benefits of phytoremediation.
- Published
- 2016
- Full Text
- View/download PDF
39. Are Changes in Composition in Response to Treatment of a Mouse Model of Osteogenesis Imperfecta Sex-dependent?
- Author
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Boskey AL, Marino J, Spevak L, Pleshko N, Doty S, Carter EM, and Raggio CL
- Subjects
- Animals, Bone Density drug effects, Bone Resorption genetics, Bone Resorption metabolism, Collagen metabolism, Disease Models, Animal, Female, Femur metabolism, Fractures, Bone genetics, Fractures, Bone metabolism, Male, Mice, Osteogenesis Imperfecta genetics, Osteogenesis Imperfecta metabolism, Sex Factors, Spectroscopy, Fourier Transform Infrared, Time Factors, Alendronate pharmacology, Bone Density Conservation Agents pharmacology, Bone Resorption drug therapy, Femur drug effects, Fractures, Bone prevention & control, Osteogenesis Imperfecta drug therapy, Recombinant Fusion Proteins pharmacology
- Abstract
Background: Osteogenesis imperfecta (OI) is a genetic disease characterized by skeletal fragility and deformity. There is extensive debate regarding treatment options in adults with OI. Antiresorptive treatment reduces the number of fractures in growing oim/oim mice, an animal model that reproducibly mimics the moderate-to-severe form of OI in humans. Effects of long-term treatments with antiresorptive agents, considered for treatment of older patients with OI with similar presentation (moderate-to-severe OI) are, to date, unknown., Questions/purposes: Fourier transform infrared (FTIR) imaging, which produces a map of the spatial variation in chemical composition in thin sections of bone, was used to address the following questions: (1) do oim/oim mice show a sex dependence in compositional properties at 6.5 months of age; (2) is there a sex-dependent response to treatment with antiresorptive agents used in the treatment of OI in humans; and (3) are any compositional parameters in oim/oim mice corrected to wild-type (WT) values after treatment?, Methods: FTIR imaging data were collected from femurs from four to five mice per sex per genotype per treatment. Treatments were 24 weeks of saline, alendronate, or RANK-Fc; and 12 weeks of saline+12 weeks RANK-Fc and 12 weeks of alendronate+RANK-Fc. FTIR imaging compositional parameters measured in cortical and cancellous bones were mineral-to-matrix ratio, carbonate-to-mineral ratio, crystal size/perfection, acid phosphate substitution, collagen maturity, and their respective distributions (heterogeneities). Because of the small sample size, nonparametric statistics (Mann-Whitney U- and Kruskal-Wallis tests with Bonferroni correction) were used to compare saline-treated male and female mice of different genotypes and treatment effects by sex and genotype, respectively. Statistical significance was defined as p<0.05., Results: At 6.5 months, saline-treated male cortical oim/oim bone had increased mineral-to-matrix ratio (p=0.016), increased acid phosphate substitution (p=0.032), and decreased carbonate-to-mineral ratio (p=0.016) relative to WT. Cancellous bone in male oim/oim also had increased mineral-to-matrix ratio (p=0.016) relative to male WT. Female oim/oim mouse bone composition for all cortical and cancellous bone parameters was comparable to WT (p>0.05). Only the female WT mice showed a response of mean compositional properties to treatment, increasing mineral-to-matrix after RANK-Fc treatment in cancellous bone (p=0.036) compared with saline-treated mice. Male oim/oim increased mineral-to-matrix cortical and cancellous bone heterogeneity in response to all long-term treatments except for saline+RANK-Fc (p<0.04); female oim/oim cortical mineral-to-matrix bone heterogeneity increased with ALN+RANK-Fc and all treatments increased cancellous female oim/oim bone acid phosphate substitution heterogeneity (p<0.04)., Conclusions: Both oim/oim and WT mice, which demonstrate sex-dependent differences in composition with saline treatment, showed few responses to long-term treatment with antiresorptive agents. Female WT mice appeared to be more responsive; male oim/oim mice showed more changes in compositional heterogeneity. Changes in bone composition caused by these agents may contribute to improved bone quality in oim/oim mice, because the treatments are known to reduce fracture incidence., Clinical Relevance: The optimal drug therapy for long-term treatment of patients with moderate-to-severe OI is unknown. Based on bone compositional changes in mice, antiresorptive treatments are useful for continued treatment in OI. There is a reported sexual dimorphism in fracture incidence in adults with OI, but to date, no one has reported differences in response to pharmaceutical intervention. This study suggests that such an investigation is warranted.
- Published
- 2015
- Full Text
- View/download PDF
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