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Patterns, Drivers, And Implications Of Postfire Delayed Tree Mortality In Temperate Conifer Forests Of The Western United States, Sebastian Busby, Cody Evers, Andrés Holz

Geography Faculty Publications and Presentations

Conifer forest resilience may be threatened by increasing wildfire activity and compound disturbances in western North America. Fire refugia enhance forest resilience, yet may decline over time due to delayed mortality—a process that remains poorly understood at landscape and regional scales. To address this uncertainty, we used high-resolution satellite imagery (5-m pixel) to map and quantify delayed mortality of conifer tree cover between 1 and 5 years postfire, across 30 large wildfires that burned within three montane ecoregions in the western United States. We used statistical models to explore the influence of burn severity, topography, soils, and climate moisture deficit …

Co-Designing With First-Generation Transfer Students, Randi Petrauskas Harris

Dissertations and Theses

Roughly 80% of community college students indicate that they intend to transfer to a four-year institution, 30% of those students eventually transfer, and 13% of those students persist to graduate with a baccalaureate degree. There has been previous research on transfer students and on first generation students, but the intersection of first-generation transfer students is under-reported. Prior research indicates that sense of belonging is an important factor in student persistence to graduation for transfer students. Higher education institutions, specifically four-year public institutions, are positioned to support first-generation transfer student sense of belonging by fostering a "transfer receptive culture." Recognizing that …

Concordance Between Two Monoclonal Antibody-Based Antigen Detection Enzyme-Linked Immunosorbent Assays For Measuring Cysticercal Antigen Levels In Sera From Pigs Experimentally Infected With Taenia Solium And Taenia Hydatigena, Gianfranco Arroyo, Luz Toribio, Sara Garrido, Nancy Chile, Teresa Lopez-Urbina, Luis A. Gomez-Puerta, Miguel Muro, Robert H. Gilman, Yesenia Castillo, Pierre Dorny, Seth E. O’Neal, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Antigen detection in Taenia solium cysticercosis confirms viable infection in the intermediate host (either pig or human). The reference B158/B60 monoclonal antibody (mAb)-based Ag-enzyme-linked immunosorbent assay (ELISA) has acceptable levels of sensitivity and specificity in human neurocysticercosis with multiple brain cysts, although its sensitivity is lower in cases with single brain cysts, whereas in porcine cysticercosis the assay specificity is affected by its frequent cross-reaction with Taenia hydatigena, another common cestode found in pigs. Our group has produced 21 anti-T. solium mAbs reacting against antigens of the whole cyst, vesicular fluid, and secretory/excretory products, identifying TsW8/TsW5 as the most …

Cognitive And Economic Development, John Luke Gallup

OHSU-PSU School of Public Health Annual Conference

A burgeoning literature finds that early childhood risk factors have large causal effects on individuals' cognitive development, education and earnings, but has not assessed the impact on the economy as a whole.

Cognitive ability is the foundation of human capital and the capacity to learn. The risk factors for poor cognitive development are very high in many countries. Each risk factor also causes child mortality, making child survival a viable proxy for good cognitive development conditions. The cognitive development of current workers happened decades earlier when they were children, providing a predetermined correlate. Controlling for country characteristics, income levels and …

Knowledge Of Medicaid Expansion To Recent And Undocumented Immigrants Among Oregon Mexican-Origin Latinos: (Work In Progress), Nancy Ledezma, Grace Parra, Alejandra Nunez, Dr. Blair Darney

OHSU-PSU School of Public Health Annual Conference

Background

Recent and undocumented immigrants are explicitly excluded from federal Medicaid and state insurance exchanges. The first phase of Healthier Oregon was implemented in July 2022 and expanded Medicaid (OHP) benefits to undocumented immigrants ages 19-25 or 55 and older. The second phase was implemented in July 2023 and extended benefits to everyone regardless of age. We assessed understanding of Healthier Oregon among Mexican-origin Latinos. We hypothesize that many potentially eligible people may not know about the program, if they qualify, or how to apply.

Methods

This is a cross-sectional study in collaboration with the General Consulate of Mexico. Our …

Understanding Variation In Provider Referral Rates To Early Intervention For Children With Developmental Delays, Gabriella Tangkilisan, Zoe Kilmer, Michelle Owens, Benjamin Sanders, Katharine Zuckerman

OHSU-PSU School of Public Health Annual Conference

Background:

Early detection and treatment of developmental disabilities (DD), including Autism Spectrum Disorder (ASD), improves language, IQ, and adaptive outcomes. Guidelines recommend immediate referral to Early Intervention (public developmental therapy services) upon positive ASD/DD screening in infant/toddler well child checks. However, children screening positive for ASD/DD are not always referred for Early Intervention services. This project aimed to understand why pediatricians do and do not refer children with positive DD/ASD screens to early intervention.

Methods:

We conducted qualitative interviews with pediatricians who participated in a randomized trial investigating family navigation for children with autism risk. We determined pediatrician referral rates …

A Window Of Opportunity: Describing Participants Engaged In A Comprehensive Perinatal Care Model To Treat Substance Use Disorder During Pregnancy, Christina Jäderholm

OHSU-PSU School of Public Health Annual Conference

In 2019, 12% of pregnant persons were estimated to use psychoactive substances, the highest rate in US history. Substance use disorder (SUD) is a chronic, relapsing condition, and while pregnancy presents a unique opportunity for SUD intervention, research on pregnant and postpartum SUD patient experiences is vital for informing perinatal systems of care. The purpose of this presentation is to describe a sample from SUN, a comprehensive perinatal care program for pregnant persons with SUD in North Carolina.

Methods

We abstracted medical records (n=29), surveyed participants (n=29), and conducted two focus groups (n=7). Medical records provided participant demographics; medical, social, …

The Use Of Extreme Risk Protection Orders Intended To Prevent Mass Violence In Oregon: A Descriptive Study, Rosol Mikail, Rebecca Valek, Shauna Rakshe, Rebecca Teichman, Susan Defrancesco, Kathleen Carlson

OHSU-PSU School of Public Health Annual Conference

Purpose: Firearm violence is a critical public health issue in the United States. Extreme Risk Protection Order (ERPO) laws are an intervention method that have been enacted in many states to prevent firearm violence including mass violence threats. This study examined the characteristics of ERPO petitions filed in Oregon for a 6-year period that involved mass violence threats.

Method: ERPO petitions included in court records obtained through the Oregon Judicial Case Information Network, from January 1, 2018, to December 31, 2023 were abstracted; a 20% random sample of records was double-coded to ensure interrater reliability. An epidemiologic analysis of cases …

Gender Affirming Surgery And Pain In Adolescents: Teen And Parent Experiences, Corrin Murphy, Eleanor Battison, University Of Rhode Island, Anna Wilson Phd

OHSU-PSU School of Public Health Annual Conference

Background: Adolescents seeking gender affirming medical care face unique biopsychosocial challenges, including experiences of discrimination and stigma. Transgender and gender diverse (TGD) adolescents often undergo gender affirming surgery (GAS). While there is an increase in GAS for TGD adolescents in the U.S., little is known about the pain experiences in the post-surgical period among these youth. There have been no studies to our knowledge that examine the psychological functioning of parents and their ability to handle their child's distress, which may be affected by their child's post-GAS pain experiences. Parental responses to their children’s pain and distress may, in turn, …

The Cost Of Healthy Eating, Diana Prychyna, Miriam R. Elman, Joy Kim, Karen F. Miller, Deonni P. Stolldorf, Sean P. Collins, Bory Kea

OHSU-PSU School of Public Health Annual Conference

Abstract

Background

Each year in the United States, 15-20% of 1 million visits to the Emergency Department for Acute Heart Failure result in home discharge, with patients often experiencing adverse health outcomes within 30 days. The study, Get With the Guidelines in Emergency Department Patients With Heart Failure (GUIDED-HF), utilized ‘Self-Care Coaches’ who meet participants via telehealth calls to discuss self-care maintenance after discharge as a strategy to mitigate adverse health outcomes; and offer provisions of resources, including a cookbook by the American Association for Heart Failure Nurses (AAHFN).

During the calls, we observed gaps in self-care for retired older …

Gaza's Healthcare System In Collapse: An Exploratory Analysis Of Healthcare Attacks In Occupied Palestinian Territories (Opts) And Israel Since October 2023, Vincenzo J. Cornacchione

OHSU-PSU School of Public Health Annual Conference

Decades of apartheid practices and oppression in Occupied Palestinian Territories (OPTs), marked by mass displacement, restricted access to essential services, and countless human rights violations, have culminated in today's systematic dismantling of Gaza’s healthcare infrastructure. To investigate the systematic obstruction of healthcare access in OPT, this exploratory analysis employs an open intelligence dataset containing event data on reported healthcare attack incidents in OPT and Israel since October 2023. Specifically, this analysis seeks to elucidate the nature and extent of healthcare attacks in OPT by answering student-defined research questions, based on a priori expectations around the data. The analysis confirms that …

Impact Of Two Shift Schedules On Post-Shift Blood Pressure In Firefighters, Ayeisha H. Haswarey

OHSU-PSU School of Public Health Annual Conference

Background: Firefighters have an increased risk of cardiometabolic disease compared to the general population. Blunted blood pressure (BP) dipping during nocturnal sleep is associated with increased cardiometabolic disease morbidity/mortality. Shift work can alter diurnal BP oscillation, but the extent of alteration by different schedules remains debated. No study to date has examined firefighting shift schedules, necessitating a longitudinal evaluation to begin to understand their implications for cardiometabolic health. Thus, this preliminary analysis compares how two common schedules (24/48 hours on/off vs. 1/3/2/3 days on/off) impact post-shift BP and dipping in 20 firefighters.

Methods: 20 participants (10% female; 25-54 years of …

Transgender And Non-Binary Health In Oregon Under A Single-Payer Health System, Amy (Mick) L. Mcveety (They/She)

OHSU-PSU School of Public Health Annual Conference

As the state with the highest percentage of population who identifies as LGBTQ+, Oregon has a duty to provide adequate health protections and services to its transgender and nonbinary (TGNB) residents, particularly given the disparities TGNB individuals face in housing, employment, education, and health. Following recommendations from the Oregon Joint Task Force on Universal Health Care, Oregon should implement a single-payer health care system, with particular attention to:

1. Protecting patient privacy in EHR and other systems, particularly for youth TGNB patients;
2. Expanding the covered gender-affirming services and removing barriers such as cost-sharing and prior authorization, and;
3. Recruiting TGNB providers and …

Exploring Decolonial And Indigenous Mental Health Framework And Practice To Address Complex Trauma Among Palestinian Youth Living Under Violence Of Settler-Colonialism, Vivian L. Duong, Corrin Murphy

OHSU-PSU School of Public Health Annual Conference

The growing settler colonial project of Israel forced indigenous Palestinians to flee from their homeland to further the Zionist movement of establishing a Jewish-majority state. The forced dispossession and displacement of Palestinians at this time was referred to as the Nakba, or catastrophe (Masalha, 2002). From 1947 and 1949, approximately 750,000 Palestinians from a population of 1.9 million were made refugees (Al Jazeera, 2017). Also referred to as the ethnic cleansing of Palestine, Zionists forcibly took over 78 percent of Palestine, destroyed about 530 villages and cities, and killed around 15,000 Palestinians including more than 70 massacres (Al Jazeera, 2017). …

Inequities In Chronic Stress Exposure At The Intersection Of Race, Gender, And Sexual Identity In A Nationally Representative Sample Of U.S. Adults, Jordan M. Lancaster, Efrain H. Chavez Martinez

OHSU-PSU School of Public Health Annual Conference

Background

Social inequity rooted in systemic oppression is robustly associated with mental and physical health; chronic stress is highlighted as a key mechanism. Limited research examining the association between sexual identity alone and C-reactive protein (CRP) – an upstream biological marker of chronic stress exposure – has yielded mixed results.

Purpose

To examine whether race/ethnicity, gender, and sexual identity interact to produce unequal levels of CRP.

Methods

Using cross-sectional data from the 2003-2010 waves of the National Health and Nutrition Examination Survey, we examined intersectional (self-reported race*gender*sexual identity) patterns in log-transformed CRP levels using a multivariable linear model among 10,885 …

Strong Hearts Program: The Results Of A Novel Primary-Care Based Diagnostic And Referral Program For Chagas Disease In East Boston, Ma, Usa, Javier J. Huerta

OHSU-PSU School of Public Health Annual Conference

Purpose: Chagas disease (CD), a neglected parasitic infection, affects ~300,000 people in the US. Untreated, CD leads to irreversible cardiac morbidity and death in 20-30% of cases, yet

Methods: After provider and community sessions, 14,354 patients were screened at EBNHC from March 2017 - May 2023, following a prespecified protocol. Confirmed Chagas patients were referred to Boston Medical Center for further evaluation. Using chi-squared tests, we analyze diagnostic uptake and prevalence stratified by demographics. Additionally, we abstracted care continuum barriers from Chagas patients' records.

Results: Per quarter, a median of 572 patients were screened (IQR: 393 – 712). …

The Association Between Acculturation & C-Reactive Protein In U.S. Immigrants: A Cross-Sectional Study, Jessica Kilinski Bs, Rosol Mikail Bs, Kelly M. Reavis Phd, Mph, Deborah Karasek Phd, Mph

OHSU-PSU School of Public Health Annual Conference

Purpose: Immigrants undergo acculturation as they assimilate to a different culture, potentially leading to immense stress. Our objective was to examine the association between acculturation and C-reactive protein (CRP), a marker of stress-induced inflammation. We hypothesized that U.S. foreign-born adults 20 years and older with higher degrees of acculturation would have higher CRP levels compared to those with lower acculturation.

Method: We used 2017-2018 National Health and Nutrition Examination Survey (NHANES) data from 1526 participants to conduct a cross-sectional analysis. We measured acculturation as language spoken at home (categorized as low, moderate, and high) and examined its association with CRP …

Impact Of Medical Formula Shortage On Patients With Inborn Errors Of Metabolism (Iem) And Their Dietitians, Haemin Lee

OHSU-PSU School of Public Health Annual Conference

Since Feb. of 2022, patients with inborn errors of metabolism (IEM) suffered medical formula shortages due to an abrupt shut down of a major formula company in the US. The goal of this project was to understand the nutritional and psychosocial impacts on patients with IEM and changes in patient-dietitian relations as a result of the unexpected formula shortage.

Two survey were set up and disseminated via REDCap to patients(18 years-old or older), parent/legal gurdian of patients in the US, from Dec.2023-Jan.2024. Of those 571 records, 139(60.4%) patient surveys and 166(48.7%) caregiver surveys were retained for analysis after dropping complete …

Supporting Self-Managed Abortion Care In “Practice Not Premise”: Provider Perspectives, Roles, And Referral Pathways In India, Laura E. Jacobson Mph, Caila Brander, P. Balasubramanian, Sruthi Chandrasekaran, Blair Darney, Julia Goodman, Ruvani Jayaweera, Caitlin Gerdts

OHSU-PSU School of Public Health Annual Conference

Objective: Describe provider perspectives and roles in self-managed abortion (SMA) in India and identify referral pathways to facility- and self-managed abortion care.

Methods: We conducted a qualitative study of 33 semi-structured interviews with a range of providers (medical, community health, and pharmacy) in India. We conducted a thematic analysis and identified referral pathways including the type of provider, the abortion care modality (in-facility or SMA), and the reason.

Results: Referrals to facility-managed abortion care were common. Providers' perception of SMA safety coupled with­ liability concerns resulted in discouraging clients from seeking SMA. Nonetheless, participants acknowledged three areas where providers played …

Employer Voices: Insights On Bolstering Career Development For Graduate Students, Alexandria J. Ashraf Mph, Josh Hodsden Mba, Justin Howe Ba, Danielle Ross Ba, Dalton Wesemann Ba, Lisa K. Marriott Phd

OHSU-PSU School of Public Health Annual Conference

Title: Employer voices: Insights on Bolstering Career Development for Graduate Students

Alexandria J. Ashraf, MPH; Josh Hodsden, MBA, CPH; Justin Howe, BA; Danielle Ross, BA, CPH; Dalton Wesemann, BA; Lisa K. Marriott, PhD

Background: The development of the public health workforce has become increasingly vital as our world faces current and future challenges. The workforce has gained considerable insight into job skills that enhance responses to emergent needs. Building the foundation for a larger scale study on public health workforce needs, this project established processes for engaging with professionals who have hired recent public health graduates.

Methods: Open-ended questions assessed …

“Sense Of Belonging”: Partnering With Central Oregon's Communities To Promote Health And Social Inclusion, Christina Jäderholm

OHSU-PSU School of Public Health Annual Conference

Abstract:

Community-engaged research can increase local research capacity and create momentum for social change. From research planning to dissemination, partnering with organizations and engaging with community members requires dedicated work and time. Using the Belonging project in Central Oregon as an example, we outline the ‘nuts and bolts’ of a community-engaged research process and highlight how we validated our findings through co-interpretation sessions.

Project

The Belonging project is a collaboration between Oregon Health & Science University (OHSU), Oregon State University - Cascades, the Central Oregon Health Council, and the Central Oregon communities. The project began [early] 2022 and concluded Feb …

Self-Reported Follow-Up Care Needs Can Be Met In Both Facility And Self-Managed Abortion: Evidence From Low- And Middle-Income Countries, Laura E. Jacobson Mph

OHSU-PSU School of Public Health Annual Conference

Objective: To understand in-facility follow-up care-seeking behavior among both people who self-managed medication abortions (SMA) and those who obtained facility-managed care in six countries and to explore factors that contribute to meeting individual’s self-reported care needs that are core to person-centered care.

Study Design: We conducted a qualitative thematic analysis of 67 in-depth interviews conducted with facility or SMA seekers. We first classified individuals as having their care needs met or not, and whether they sought follow-up care. We then identified predisposing, enabling, or need factors that contributed to having care needs met or not.

Results: A total of n=67 …

Using Systems Thinking Tools To Inform The Implementation Of A Cysticercosis Control Program In Rural Peru, Lisset M. Dumet Poma Mba, Angela Spencer Phd, Ruth Atto Bsc, Vanessa Cruz Bsc, Percy Vilchez Mph, Seth O'Neal Md, Mph For The Cysticercosis Working Group In Peru

OHSU-PSU School of Public Health Annual Conference

Cysticercosis is an infectious disease responsible for 30-40% of acquired epilepsy in endemic areas such as rural Peru. Ring Treatment (RT) is a community-engaged cysticercosis control strategy, shown to be efficacious when delivered by research teams. We applied the Consolidated Framework for Implementation Research with additional constructs compatible with low-resource contexts in the formative evaluation to develop a protocol for implementing RT.

We included small, medium, and large municipal districts from northern Peru representing different rural primary health delivery settings. We collected 169 semi-structured and 341 network interviews. We applied Social-Network-Analysis to identify key players, roles, and collaborations to inform …

Trauma Informed Approaches To Researcher-Participant Relationships: Examples From A Housing And Health Study, Cristina Flores, Jade Garza, Judith R. Solomon, Marisa Westbrook

OHSU-PSU School of Public Health Annual Conference

In qualitative research, the aim of researcher-participant relationships is to allow for vulnerability and authenticity while maintaining professional boundaries. Trauma-informed care (TIC) in mental health services and social work considers the impact of violence and victimization in the lives of clients, while emphasizing trauma as causation (SAMHSA, 2014; Butler, 2011). Applying a trauma-informed approach to qualitative research processes may assist in building rapport with research participants, minimizing re-traumatization, appropriately interpreting results, and uncovering cultural significance. Research suggests that trauma-informed approaches avoid excluding underrepresented voices and allows researchers to engage through a social justice and health equity lens (Roche, 2020). For …

What Can We Learn About Teaching Excellence From Our Students? Lessons From Six Years Of Teaching Award Data, Christopher Shortell, Kris Henning, Carl Christiansen

Political Science Faculty Publications and Presentations

Teaching excellence in higher education can be defined and studied in different ways, but research efforts to date have often focused on institutional or instructor perspectives. This article uses a data set of over 500 open-ended comments submitted by Political Science undergraduates as part of a teaching award process to identify themes that matter most to students. We find that being supportive, bringing humor, enthusiasm, and passion to the classroom, and engaging students with relevant, challenging, and exciting activities are what defines teaching excellence from a student’s perspective. Building on these themes and using quotes to illustrate key concepts, we …

Borrowing Bronfenbrenner: An Argument For Increasing The Intersection Of Diverse Theoretical And Applied Models, Sean Woodland, Matthew Kahler, John Blue Star, Brandon K. Fielding

Public Affairs and Policy Faculty Publications and Presentations

We have observed that as the theoretical landscape in behavioral science continues to proliferate and diversify, it is not uncommon that distance between subspecialties emerge, artificially accentuating differences between camps. This may occur at the risk of losing sight of the common ground, and worsening communication between subspecialties. In this paper, we propose conceptual “crosswalking” as a means to preserve interdisciplinary communication within the behavioral sciences. This is illustrated using Bronfenbrenner's Person-Process-Context-Time (PPCT) Model, mapped onto therapeutic modalities with a focus on ecological systems. Recommendations for future crosswalking are made.

Implementation Of A Realistic Artificial Data Generator For Crash Data Generation, Lauren Hoover, Md. Istiak Jahan, Tanmoy Bhowmik, Sudipta Dey Tirtha, Karthik C. Konduri, John Ivan, Kai Wang, Shanshan Zhao, Joshua Auld, Naveen Eluru

Civil and Environmental Engineering Faculty Publications and Presentations

In this paper, a framework is outlined to generate realistic artificial data (RAD) as a tool for comparing different models developed for safety analysis. The primary focus of transportation safety analysis is on identifying and quantifying the influence of factors contributing to traffic crash occurrence and its consequences. The current framework of comparing model structures using only observed data has limitations. With observed data, it is not possible to know how well the models mimic the true relationship between the dependent and independent variables. Further, real datasets do not allow researchers to evaluate the model performance for different levels of …

Manga In Bookstores, Claire Curry

Book Publishing Final Research Papers

In recent years, manga has seen a surge in popularity. This research seeks to provide insights into the role of manga in U.S. bookstores and its implications for reader discovery. Through observations at bookstores in the Portland area, including Books with Pictures, Kinokuniya, Powell’s, and Barnes and Noble, it was examined how manga is presented to readers. Factors considered include manga’s physical placement in the store and surrounding sections as well as shelving methods and categorizations like genre labels, particularly for manhwa, manhua, and light novels. Display tables, end caps, and shelf talkers also demonstrate a unique way for bookstores …

Evaluating Equitable Successes In Literary Spaces A Portland Book Festival (Pbf) Case Study, Tia-Theo Thompson

Book Publishing Final Research Papers

How do literary institutions achieve and evaluate successes in equity? Do certain factors expedite this transition? To understand the impact of Literary Art’s Discovery Model on diversity in literary spaces, data concerning all BIPOC Writers & Presenters at the Portland Book Festival 2023 was collected and analyzed by book placement, genre, and age category (among additional subcategories). Acknowledgement of publishing industry trends and activism within literary communities appear to be significant factors while curating authors with equity in mind.

An Introduction To Nanomaterials For Nanopackaging, James E. Morris

Electrical and Computer Engineering Faculty Publications and Presentations

The multiple purposes of an electronics “package” include the provision of mechanical support to the silicon chip, for example, and protection from the environment, the delivery of power in and the facilitation of heat out, and the reliable input and output of information signals, whether electrical or optical. In the age of heterogeneous integration, this includes the internal conversion of signal modes between multiple technologies within the package, while maintaining the traditional requirement of reliable information transmission between packages, e.g., on a traditional circuit board. This article presents some selected examples of nanopackaging, i.e., the application of nanotechnologies, (nanoparticles, carbon …