Social and Behavioral Sciences Commons^™

Forest Fire Effects On The Temporal Variability Of Landscape Snow Albedo Relative To Burn Severity, Max Gersh

Dissertations and Theses

Snow-water storage is decreasing, while forest fires are increasing in duration, size, frequency, and intensity, due to climate change. Most forest fires occur in the seasonal snow zone, altering snow mass and energy balance for many years following fire. Following forest fires, Surface snow albedo (SSA) decreases, as light absorbing particles (LAP), particularly black carbon (BC) produced in forest fires get deposited throughout the snowpack, altering snowpack energy balance driving earlier snowmelt in burned forests. While SSA decreases, landscape snow albedo (LSA) increases following fire, as more of the snow-covered surface becomes visible beneath the burned forest canopy, brightening the …

A Collaborative Approach To Cultural Resource Risk Assessment, Preservation, And Prioritization: A Case Study From Sauvie Island, Oregon, Phillip James Daily

Dissertations and Theses

New and increasing threats to cultural heritage resources have pushed archaeologists, land managers, and Indigenous peoples to develop strategies to identify at-risk resources, determine condition, vulnerabilities, and value of said resources, and then provide mitigation and preservation prioritizations and recommendations for the future. One such strategy is the risk assessment approach. Typically, to guide ongoing and future management of vulnerable cultural resources, risk assessments consider preexisting archaeological data, alongside geomorphological and hydrological landform characteristics, to prioritize sites for preservation. While such assessments have been conducted around the globe, they have not been widely applied on the Lower Columbia of Oregon …

Adoption And Use Of E-Grocery Shopping In The Context Of The Covid-19 Pandemic: Implications For Transport Systems And Beyond, Gabriella Abou-Zeid

Dissertations and Theses

In 2020, the COVID-19 pandemic drastically impacted travel for in-person shopping, commute trips, global supply chains, and food business operations. Previously mundane tasks, like shopping for food and household items, became markedly different as new social distancing and mask guidelines were put in place to mitigate the spread of COVID-19. Concurrently, e-commerce sales in the U.S. skyrocketed. E-grocery pickup and delivery services saw unprecedented expansions. The adoption and use of e-grocery services have implications for equity and mobility, although the nature of the relationship of e-grocery to the latter is still unclear. Enhancing our understanding of the drivers of (and …

"Like I Was An Actual Researcher": Participation And Identity Trajectories Of Underrepresented Minority And First-Generation Stem Students In Research Training Communities Of Practice, Jennifer Lynn Lindwall

Dissertations and Theses

Although calls for a more diverse workforce in biomedical fields have been widespread, racial and ethnic gaps in biomedical degree attainment remain. Contextualist perspectives seek to understand persistent STEM inequities by examining person-in-context experiences and how systemic factors filter into students' proximal contexts shaping their participation and science identity trajectories. Research training communities of practice aim to offer underrepresented minority and first-generation students support, guidance, and opportunities to learn the practices of science and construct their science identity. However, many students still choose to leave these programs. There is limited research on these students' science identity construction process and their …

Does Experiencing Spousal Support And Strain Impact The Quality Of Family-Based Support That Supervisors Provide To Employees?, Joseph Alvin Sherwood

Dissertations and Theses

Relying on previously collected data from the Work, Family and Health Study (WFHS), and drawing from a sample of 75 supervisors working in the extended healthcare industry, this research investigation empirically tested propositions of the Work-Home Resources Model to explore antecedents of family-supportive supervisor behaviors (FSSB). To explore these relationships a longitudinal, multi-level structural equation model (MSEM) was used to examine how supervisor contextual resources (spousal support) and demands (spousal strain) in the home domain impacted employee perceptions of these supervisors' FSSB through gains in personal resources (psychological distress) across three time points. Results from the MSEM model confirmed one …

'There Are No Bathrooms Available!': How Older Adults Experiencing Houselessness Manage Their Daily Activities, Ellis Jourdan Hews

Dissertations and Theses

Older adults living unhoused encounter limitations and challenges that drastically decrease their wellbeing and quality of life. The purpose of my study was to understand how experiencing houselessness impacted older adults' ability to conduct their activities of daily living (ADLs) and instrumental activities of daily living (IADLs) within their communities. I conducted phone interviews with older adults aged 50 and older who experienced houselessness in the Portland metro area. The participants described the persons and places that shaped their community life when they were living unhoused, and they described how those entities intervened to alleviate barriers to daily activities. The …

Relationship Between Image Spectroscopy Spatial Resolution And Crown Level Tree Species Classification Accuracy, Andrew Richard Fritter

Dissertations and Theses

Hyperspectral imagery has become a common remote sensing data type used in tree species classifications because of its rich spectral signals that allow the detection of the variations in canopy reflectance. While high spatial resolution hyperspectral imagery provides fine spatial resolution for discerning surface objects, it has the inherent drawbacks of expensive acquisition costs, large data sizes, and can be computationally taxing to use. This study attempts to determine a relationship between crown level tree species classification accuracy and hyperspectral spatial resolution. Future tree species classification projects can make use of this relationship by targeting a spatial resolution that best …

Drug Conviction And Employment Restriction: Experiences Of Employees With Drug-Related Criminal Histories, Liana Bernard

Dissertations and Theses

It has been established that there are numerous barriers to obtaining and maintaining employment following a criminal conviction, including background checks, which occur as part of most selection processes. Barriers to obtaining and maintaining employment may be higher for individuals with drug-related criminal histories as they may face particularly severe negative stereotypes. This study examines the experiences of individuals with drug-related criminal histories' integration into the workplace and society. Additionally, because stereotypes about individuals with drug-related criminal histories are contradictory to those of individuals with stable employment, I examine how these individuals are impacted by reductions in the stigma that …

Climate Model Evaluation Of Atmospheric Rivers Over The Contiguous United States, Ilan González-Hirshfeld

Dissertations and Theses

Atmospheric rivers (ARs)--long corridors of intense atmospheric water vapor transport--significantly influence the hydrologic cycle and regional hydrometeorological extremes across the contiguous United States (CONUS). Ongoing and future climate change may alter AR characteristics and impacts, making confident climate model projections of future change, especially at regional scales, of critical importance. In order to better constrain uncertainty in such projections of future change, we perform a comprehensive climate model evaluation of AR climatology over the CONUS. Using an established AR detection algorithm, we evaluate the representation of ARs in historical simulations (1984-2013) from a suite of models participating in the sixth …

A Ground-Based Assessment Framework For Validating Diesel Particulate Emission Models And Applicability In Portland, Or, Kirsten Marie Sarle

Dissertations and Theses

Exposure to diesel emissions causes a range of health effects throughout the body, impairing; respiratory, cardiovascular, central nervous, renal, and cognitive systems. Diesel particulate matter (DPM) in Portland, Oregon is prevalent due to the layout of highly trafficked roadways, rail lines, and marine ports exposing a dense population to high levels of exhaust pollution. These high concentrations of ambient diesel emissions disproportionately impact minority and low-income populations.

Ground-based monitoring and modeling are two ways to assess ambient DPM. However, there are uncertainties in modeled DPM due to knowledge gaps in emissions inventories as well as lack of model validation against …

Projections Of Large-Scale Atmospheric Circulation Patterns And Associated Temperature And Precipitation Over The Pacific Northwest Using Cmip6 Models, Graham Patrick Taylor

Dissertations and Theses

Projections of 500 hPa geopotential height (Z500) patterns over the Pacific Northwest of North America and their associated surface temperature, precipitation, and frequency of occurrence are assessed using models from the 6th phase of the Coupled Model Intercomparison Project (CMIP6). The self-organizing maps approach is applied to reanalysis data from the Modern-Era Retrospective Analysis for Research and Applications, version-2 (MERRA-2) to cluster daily Z500 anomalies into 12 representative patterns that span the range of historical circulation patterns. CMIP6 data for daily Z500 anomalies are mapped to each node for historical and end of century global warming experiments, and the resulting …

Marijuana-Related Crime In Oregon Following Legalization Of Recreational Use, Ana Alicia Soto

Dissertations and Theses

In this decade we are seeing the legalization of recreational marijuana occurring across the nation, with new legislation being passed every year. This necessitates research into what works within the regulatory framework of states where MJ has been legalized. This study sets out to look at Oregon's implementation of recreational marijuana and its impact on marijuana-related offenses. Using NIBRS, we examine marijuana-related offenses across 13 counties with crime data from 41 agencies in Oregon from pre-legalization to post-legalization (2010 to 2019). This study uses elements of legalization, licenses, and production to analyze the association between these aspects and offenses that …

Anti-Muslim Bias: Investigating Individual Differences, Threat Perceptions, And Emotions In Islamophobic Policy Support, Aeleah M. Granger

Dissertations and Theses

Following the terrorist attacks of 9/11, Muslims in the United States were victims of increased surveillance by law enforcement on the basis of their religious identity, often resulting in mistreatment and unjustified imprisonment. These biases against Muslims and subsequent policy shifts have been pervasive and have had negative impacts on the growing number of Muslims in the United States. The current study focuses on individual differences that predict Islamophobia, including Social Dominance Orientation (SDO), Right-wing Authoritarianism (RWA), and Nationalism, as well as the specific types of intergroup threat perceptions (i.e., realistic, symbolic, terroristic) and subsequent emotional reactions (e.g., anger, fear) …

Transformative Health Care: Integrating The Perspectives And Lived Experiences Of Transgender And Gender Diverse Patients Into Health Care Education And Delivery, Shammarie Raquel Mathis

Dissertations and Theses

Prior research studies have found transgender and gender non-conforming (TGNC) patients at increased risk for poor physical and mental health as a result of disparities in health care access and treatment. Research has shown that perioperative patient education can improve patient outcomes, as well as promote increased knowledge, preparedness, and recovery post-surgery. For TGNC patients, gender affirming perioperative education classes are especially important for prospective patients as they not only provide comprehensive information about perioperative topics but also serve as a mechanism to promote personal empowerment through knowledge acquisition. The Oregon Health and Science University (OHSU) Transgender Health Program (THP) …

Incarceration And Suicide: Do The Risk Factors Differ For Civilians And Veterans?, Rheannon Gail Ramsey

Dissertations and Theses

Suicide is one of the leading causes of death in United States jails and prisons. Many researchers have looked at suicides in prisons and what can potentially cause suicidal ideation but there are conflicting findings among civilian incarcerated populations and United States military veteran incarcerated populations.

The intent of this study is to examine which risk factors are most prevalent among adults in custody, with a focus on mental health and substance use or abuse and how these risk factors differ between incarcerated civilians and incarcerated veterans. Using survey data from the 2002 Survey of Inmates in Local Jails conducted …

Spread Like Wildfire: Assessing The Utility Of Local Facebook Groups To Inspire Citizen Communication During A Disaster, Colby Riehl

Dissertations and Theses

As traditional sources of local news and information decline, community-oriented social media services (e.g. Nextdoor, Facebook groups) are expanding (Masden, Grevet, Grinter, Gilbert, and Edwards, 2014). Thus far, community-oriented social media use remains relatively understudied. Not only do we not understand how citizens utilize these resources, we are also generally unaware of the content that they create and access using them. A survey of residents of Oregon City, OR and its environs, which were impacted by the Oregon wildfires of 2020, was conducted to assess the differences among citizens who use a local Facebook group & those who do not. …

Rowing Concerns: Collaborative Governance And Stakeholder Determination In The Central Oregon's Deschutes Basin, Noel Vineyard

Dissertations and Theses

In 2019, a coalition of irrigation districts in central Oregon's Deschutes Basin submitted the Deschutes Basin Habitat Conservation Plan to the US Department of Fish and Wildlife. This Habitat Conservation Plan purported to have been constructed through a collaborative governance structure between the irrigation districts and various community stakeholders who all had interests in basin management, however segments of the Basin's river recreation community began to raise concerns that their voices were not included. The purpose of this research was to investigate how stakeholder status in the Deschutes Basin is created through collaborative water governance processes like development of the …

Judicial Review As An Instrument Of Natural Rights Theory: An Intellectual History, James M. Masnov

Dissertations and Theses

The unique and antidemocratic power of judicial review by the United States Supreme Court is not a bug, but a feature. Its role was critical in establishing and affirming a separation of powers horizontally among the federal branches as well as vertically between the federal government and the individual states. More than this, the Court's power of judicial review acts as an instrument of rights theory and is informed by a rich and rarely-discussed intellectual history. Though judicial review as a mode of constitutional law and the legal history surrounding it has been discussed by various legal scholars, political scientists, …

Racializing Discourses: An Exploration Of Moreno Subject Formation In Oaxaca, Mexico, Juan Salvador Sepulveda-Figuereo

Dissertations and Theses

Processes of Black racialization in Mestizo Latin America open a space to expose how subjectivities emerge and change while in tension with broader national ideas and transnational discourses. Morenos, typically dark skin individuals of African descent, inhabit the boundaries of mestizaje, Mexico's national racial ideology which emphasizes indigenous and Spanish ancestry. As a result, regional narratives subject morenos to racialization processes that align with the historical erasure of people of African descent, effectively excluding morenos from the nation. Nevertheless, morenos incorporate themselves into the regional and national narratives through various mechanisms and (re)formulations of established discourses.

I propose a …

E(Raced): Race And Use Of Self Amongst Bipoc Social Workers, Anita Reinette Gooding

Dissertations and Theses

Use of self is defined as the social worker's instrument, and involves an intentional engagement of one's personhood in ways that facilitate client change (Heyt & Sherman, 2005). This dissertation argues that race is one component of the social worker's self that is visible, and that can affect how Black, Indigenous, and People of Color (BIPOC) social workers use self in their practice. Using Critical Race Theory, Social Identity Theory and an Interpretive Description methodology, this dissertation engages 27 BIPOC field instructors in semi-structured interviews in order to answer the following research questions: a) What are the components of use …

Open Crime Maps: How Are Police Departments Doing So Far?, Khaing Sandee Lynn

Dissertations and Theses

In recent years, some police departments have started providing open crime maps depicting select crime-related data. However, there has been no studies so far evaluating map delivery sources, the type of maps delivered, and why agencies might be doing so. Using a random, stratified sample of 1,677 police departments from the 2013 Law Enforcement Management and Administrative Statistics (LEMAS) survey, the current study examines how many police departments provide access to online crime maps as well as how they are delivered (externally or internally) and prevalent map types (dot, density, choropleth, etc.). Furthermore, whether or not agencies provided a justification(s) …

Perceived Value Of Technology Product Features By Crowdfunding Backers: The Case Of 3d Printing Technology On Kickstarter Platform, Nina Chaichi

Dissertations and Theses

Crowdfunding is an activity that gathers funds by drawing on a relatively small contribution from a relatively large number of individuals using the internet. One of the crowdfunding purposes is to fund entrepreneurial ventures. Modern crowdfunding activities--that utilize the internet--go back to 1997 and gained popularity in the music and video community. However, the most common platforms for entrepreneurial activities, including Kickstarter and IndieGoGo, have been established as recently as 2008. Thus the understanding of crowdfunding's dynamic is in its infancy.

Crowdfunding has been studied from various perspectives, primarily focusing on the factors that increase the platform's participation and determinants …

Neoliberalism, Civic Identity, And Resistance: An Ethnographic Case Study Of A Community Development Organization, Erin Layne Elliott

Dissertations and Theses

Research on the marketization of the nonprofit sector and how it has come to operate in more business-like ways has been well documented in recent years. This research has largely focused on how marketization has pervaded the nonprofit sector, yet little research has been done on how business-like values and modes of acting are manifesting in nonprofits. Even less understood are the impacts marketization may have on foundational civic values in the nonprofit sector. As marketized discourses proliferate, concerns have been raised about threats to nonprofit autonomy and the sector's important civic role. This dissertation aims to fill this gap …

Understanding Financial And Human Resource Capacity Challenges Among Small Nonprofits In Oregon: How To Overcome Challenges Unique To Size And Urban-Rural Divide, Anindita Mukerjee

Dissertations and Theses

Nonprofit and voluntary organizations are part of the political economy that add to the services of public and private sectors by addressing civic interests, participation in democracy and providing social programs that improve quality of life. This sector is mostly comprised of small organizations whose impact is more than their budget size. At the advent of this study, information existed about the needs and capacity challenges of Oregon nonprofits in general but lacked specifics on smaller organizations, especially differentiating the urban rural distinction. The aim of this research was to explore the financial and human resource capacity of small nonprofit …

The Digital Divide And Health: Examining Digital Access As A Social Determinant Of Health, Elizabeth Melissa Withers

Dissertations and Theses

This dissertation is comprised of three papers that consider ways in which one's level of digital access may impact self-rated health. Data are from multiple years of three separate nationally representative cross-sectional surveys: National Health Interview Survey, General Social Survey, and Health Information National Trends Survey to address the primary overarching research question: Is there an association between digital access and health? The examination of the relationship between digital access and health is situated within a social determinants of health perspective and draws on van Dijk's (2005) causal and sequential model of digital access. Education, income, race and ethnicity, work …

Exposure Characterization And Assessment Of Airborne Chemicals And Sars-Cov-2 Transmission In New York City Nail Salons, Amelia P. H. Watkins

Dissertations and Theses

Background: Currently, there are 156,000 people employed as manicurists or pedicurists in the United States. Employment in this sector is expected to grow by 10% over the next decade. Exposure assessments have revealed that salon workers are chronically exposed to a variety of substances that cause respiratory sensitization, developmental problems, contact dermatitis, blood, liver, and kidney issues, as well as nervous system impacts. Most recently, the SARS-Cov-2 pandemic has raised the issue of the vulnerability of nail salon workers to airborne infectious diseases as well. This dissertation aims to characterize and assess the chemical exposures that nail salon workers …

Agency, Sense Of Place, And Knowledge On The Zumwalt Prairie: A Social Study Of Place-Based Conservation And Resilience, Dana Elyse Hellman

Dissertations and Theses

Shifting and often diminishing environmental conditions, due to climate change, resource loss, and ecosystem degradation, pose a significant concern to both social and ecological systems. The field of conservation science has attempted to address environmental threats through varying approaches, transitioning from fortress conservation and complete human exclusion to community-based and co-managed models which incorporate human actors and social dimensions in the conservation process. The latest iteration of conservation scholarship, place-based conservation, is deeply rooted in interdisciplinary, social scientific thinking, and calls for significant practitioner engagement with local knowledge, practices, social constructions, and place meanings. It is an approach which emphasizes …

Identifying The Cost Of Preventable Chronic Disease In Prison: Can Illness Prevention Of Adults In Custody Save Money?, Molly Bineham

Dissertations and Theses

This study investigates the cost of preventable health problems and ailments when compared to other costs of incarceration. The purpose of this study is to examine the impact of imprisonment on the costliest chronic illness. The health of adults in custody related to the general population and the overall fiscal cost of the deadliest chronic illness among incarcerated adults is discussed. Linear regression is used to analyze the occurrence of heart disease and diabetes among adults in custody while controlling for other factors. The results of this analysis provide insight that chronic diseases like heart disease and diabetes should be …

Claiming Miscommunication To Justify Rape: The Role Of Liking The Perpetrator, Alyssa Marie Glace Maryn

Dissertations and Theses

In this dissertation, four experiments tested whether sharing an ingroup with a sexual violence perpetrator (vs not sharing an ingroup) makes individuals more likely to view the survivor's consent refusal as insufficient. Although most people communicate sexual consent indirectly and nonverbally, individuals often report that indirect and nonverbal consent refusals are an insufficient form of non-consent. These claims of consent miscommunication might be used to justify instances of sexual violence when an individual is motivated to do so. I hypothesize that sharing an ingroup identity with a perpetrator might motivate individuals to justify sexual violence, leading them to report that …

Preventing Sexual Violence Through Understanding Perceptions Of Sexual Offenders, Judith G. Zatkin

Dissertations and Theses

In this dissertation, I present three complete manuscripts. I utilize social and community psychological theory, as well as criminological theory to better understand those who perpetrate sexual violence in two domains: child sexual abuse and college campus sexual assault. All three studies are conducted with an eye toward the prevention of sexual violence. In the first study, I conduct a complete psychometric analysis of the Modus Operandi Questionnaire, a comprehensive quantitative tool that examines offending patterns and tactics of those who commit child sexual abuse (Chapter II). An updated factor structure for this tool is presented, as well as recommendations …