Digital Commons Network^™

An Exploratory Study Of Adjunct Faculty Professional Growth Experiences, Bethany Ann Potts

Dissertations and Theses

Part-time non-tenure track faculty, also referred to as adjunct faculty, are the fastest growing instructional group in higher education, but they are provided minimal professional support from their employing institution(s). This lack of support is a problem because working conditions shape instructors' investment and efficacy of performance in their professional practice. Well established in the literature are inquiries into adjunct faculty working conditions that prioritize analysis of the organization over the lived experiences of the faculty. However, the lived experiences of adjunct faculty offer a unique and important lens from which to interrogate the impact of institutional policies and practices …

Data From: Drivers Of Zooplankton Community Composition In A Novel Ecosystem: Hawai’I Mangroves As A Case Study, Casey L. Lewis, Elise F. Granek

Environmental Science and Management Datasets

Management of established non-native plants is challenging because removal is expensive and can produce negative consequences, yet establishment can create novel ecosystems. Red mangrove propagules were introduced to Moloka'i, Hawai’i in 1902 to mitigate the effects of soil erosion and have since spread along the coast and to adjacent islands creating novel habitat. We compared zooplankton communities between novel mangrove and historical non-mangrove habitat both within fishponds and along open coastline to examine environmental factors, including mangrove presence, affecting zooplankton community composition.

Community composition patterns were driven by lunar cycle and site characteristics, including fishpond structure, mangrove and open coast …

'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 …

Nesting Habits Of Cavity Nesting Bees And Wasps In Portland, Oregon, Stefanie Kay Steele

Dissertations and Theses

Native bees are threatened by habitat loss through urbanization, however, there is increasing interest in creating bee nesting habitat in urban areas. Few studies have determined what species are present in the region, or examined the role of nest height or cavity size in attracting the approximate one-third of native bees that nest in cavities. To determine what species were present, and whether they showed preferences for nesting at a certain height or cavity width, we set up artificial wooden cavity nest blocks across fourteen locations in the greater Portland, OR area. Wooden posts were erected with nest blocks at …

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 …

The Residential Property Value Premium Of The Proximity To Carsharing And Bikesharing Services: Evidence From New York City, Sangwan Lee, Aaron D. Golub

Urban Studies and Planning Faculty Publications and Presentations

While significant existing scholarship has confirmed that accessibility to “macro” transportation systems, such as transit, creates some value for real estate, few studies have examined the capitalized effect of “micro” transportation modes on property values. Even, despite the increased ridership and market shares of carsharing and bikesharing services, empirical evidence on its property value capitalization effects of the emerging transportation services remains far less limited. In this context, this research examines the residential value uplift induced from the proximity to carsharing (Zipcar) and bikesharing (CitiBike) services in New York City by employing Spatial Durbin Models with sales transaction data that …

Modeling Cyanotoxin Production, Fate And Transport In Surface Waterbodies, Bernadel Rose Hintz Garstecki

Dissertations and Theses

Cyanobacteria exist throughout the world and are frequently associated with forming toxic blooms. The toxins produced by cyanobacteria, cyanotoxins, are harmful to both humans and animals. Rising temperatures due to global climate change, increased nutrient loading, and other anthropogenic impacts on waterbodies are expected to increase the prevalence of cyanobacteria. It is vital that we protect our drinking water supplies and natural water resources. Modeling the production and movement of these toxins is an important step in limiting exposure to them and evaluating management strategies to mitigate their impact. Cyanotoxins are diverse and the conditions under which they are formed …

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) …

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 …

Computer Adaptive Testing For The Assessment Of Anomia Severity, Gerasimos Fergadiotis, Marianne Casilio, William D. Hula, Alexander Swiderski

Speech and Hearing Sciences Faculty Publications and Presentations

Anomia assessment is a fundamental component of clinical practice and research inquiries involving individuals with aphasia, and confrontation naming tasks are among the most commonly used tools for quantifying anomia severity. While currently available confrontation naming tests possess many ideal properties, they are ultimately limited by the overarching psychometric framework they were developed within. Here, we discuss the challenges inherent to confrontation naming tests and present a modern alternative to test development called item response theory (IRT). Key concepts of IRT approaches are reviewed in relation to their relevance to aphasiology, highlighting the ability of IRT to create flexible and …

Battle Rock: Anatomy Of A Massacre, Adam R. Fitzhugh

Dissertations and Theses

On June 9, 1851, nine men under the direction of a steamboat captain and land speculator named William Tichenor landed on the southern coast of the Oregon Territory at present-day Port Orford with the intention of establishing a permanent settlement. Tichenor's plan was to establish a commercial port that would supply gold mining endeavors in the interior. The landing party's instructions were to survey the townsite while Tichenor traveled to San Francisco to gather more men and supplies. Before departing, he promised the group he would return in exactly two weeks. He also assured them that the local Quatomah Indians, …

The Effects On Public Health Of Climate Change Adaptation Responses: A Systematic Review Of Evidence From Low- And Middle-Income Countries., Pauline F D Scheelbeek, Alan D. Dangour, Stephanie Jarmul, Grace Turner, Anne J. Sietsma, Jan C. Minx, Max Callaghan, Idowu Ajibade, Stephanie E. Austin, Robbert Biesbroek, Kathryn J. Bowen, Tara Chen, Katy Davis, Tim Ensor, James D. Ford, Eranga K. Galappaththi, Elphin T. Joe, Issah J. Musah-Surugu, Gabriela Nagle Alverio, Patricia Nayna Schwerdtle, Pratik Pokharel, Eunice A. Salubi, Giulia Scarpa, Alcade C. Segnon, Mariella Siña, Sienna Templeman, Jiren Xu, Carol Zavaleta-Cortijo, Lea Berrang-Ford

Geography Faculty Publications and Presentations

Climate change adaptation responses are being developed and delivered in many parts of the world in the absence of detailed knowledge of their effects on public health. Here we present the results of a systematic review of peer-reviewed literature reporting the effects on health of climate change adaptation responses in low- and middle-income countries (LMICs). The review used the 'Global Adaptation Mapping Initiative' database (comprising 1682 publications related to climate change adaptation responses) that was constructed through systematic literature searches in Scopus, Web of Science and Google Scholar (2013-2020). For this study, further screening was performed to identify studies from …

Webinar: The Impact Of Ride Hail Services On The Accessibility Of Nonprofit Services, Dyana Mason

TREC Webinar Series

Nonprofit organizations are responsible for providing human services across the United States, often in partnership with government agencies. In this work, they address some of the most pressing social issues – including homelessness, poverty, health care and education. While many of these organizations consider location and accessibility crucial to supporting their clients – often locating services near bus or train stops, for example – little is known about the impact of new technologies, including ride hail services (also called Transportation Network Companies, or TNCs) like Lyft and Uber, on nonprofit accessibility. Do these services help fill gaps in client needs? …

Fixed Bottom Wind Turbine Wave-Wake Interaction, Ondrej Fercak

Dissertations and Theses

The interest and benefits of offshore wind energy has also brought along legitimate design challenges for engineers. Most notably, the complex interaction between wind and turbine is further complicated by the addition of dynamic ocean waves. This dynamic coupling between wind, wave, and turbine is not fully understood. Even small improvements in wind turbine performance are welcome, so characterizing a fundamental dynamic in offshore energy is necessary to optimize design. Experimentation and simulation have been used to characterize inflow and turbine wakes and separately, wind-wave interactions. But only simulations have just begun to look at the wind, wave, and turbine …

Ancillary Data For Refining Computer Adaptive Algorithms For The Assessment Of Anomia, Emily Kathryn Tudorache

Dissertations and Theses

Computer adaptive testing formats, based in item response theory (IRT), are becoming an increasingly popular approach to testing in healthcare because they offer numerous psychometric and practical advantages to assessment when compared to static tests that rely on classical test theory. Fergadiotis and colleagues (2015) have developed computer adaptive versions of the Philadelphia Naming Test (PNT) short-forms, which have demonstrated acceptable precision and standard error of measurement when compared to the static short-forms and original full-length assessment. This study sought to use synthetic data simulations using the catIrt R package (Nydik, 2014) to investigate possible advantages of the use of …

Women's Work: A Feminist Standpoint Theory Study Of Scholarship, Voice, And Resistance In The Academic Generation Of Knowledge, Linnea Angelica Spitzer

Dissertations and Theses

More women than ever are earning doctoral degrees and are taking research or teaching positions at universities. However, the number of tenured women in full professorships have not yet achieved parity with the number of men in similar positions. Of the many reasons proposed for the disproportionate representation of women in the higher ranks of academia, one of the most commonly cited is the lower rates of publication by women in scholarly journals, an important criterion for promotion and tenure. However, women faculty are not unproductive. As scholars, they produce research and publish their findings in mainstream academic journals. In …

Genesis At Work: Advancing Inclusive Innovation Through Manufacturing Extension, Nichola Lowe, Greg Schrock, Ranita Jain, Maureen Conway

Urban Studies and Planning Faculty Publications and Presentations

US manufacturing is struggling with both a productivity and job quality challenge. These challenges are interconnected, reinforcing the need for increased coordination of economic and workforce development efforts. This article outlines the evaluation findings of a novel business-facing initiative called the Genesis Movement, to understand its role in reshaping the workforce experience within small- and medium-sized manufacturing businesses in Chicago, Illinois. Spearheaded in 2014 by the Illinois Manufacturing Excellence Center (IMEC), Genesis starts with the premise that workforce practices are central to business operations, productivity, and competitiveness—and therefore, manufacturing extension services need to promote improvements to job quality in support …

How Team Emotions Impact Individual Employee Strain Before, During, And After A Stressful Event: A Latent Growth Curve Modeling Approach, Shi (Tracy) Xu, Larry R. Martinez, Hubert Van Hoof

Psychology Faculty Publications and Presentations

Employee strain is a significant and costly issue for hospitality organizations. This study investigated the change trajectory of strain pre, during, and post a discrete stressful event and how cohesion and group emotional variability altered the shape of the trajectory. Using an experience sampling method approach, we gathered 402 daily observations from 84 workers in a period that included a specific stressful event, the opening of a one-night “theme dinner” restaurant that catered to dinner guests from the general public. We used latent growth curve modeling to investigate the change of strain among employees over time. The results showed that …

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 …

Vancouver Gateway Project, Vancouver, Washington, Brandon Brezic, Isabella Day, Jesse Debord, Brett Herb, Dylan Nichols, Tera Perala

Real Estate Development Workshop Projects

Located in Southwestern Washington, the City of Vancouver’s Downtown and Waterfront districts have experienced a significant transformation during the past five years, resulting in over 900 new homes, and 88,000 and 170,000 square feet of new retail and office space, respectively. This central area is poised for exponential growth over the next 5 years focused along the 32-acre Waterfront Vancouver master plan area. At the heart of the city center is an undeveloped 6.4 acre site that has the potential to seamlessly connect the urban fabric of Vancouver.

We view this site not only as an opportunity to connect the …

Vancouver Anchor District, Vancouver, Sandra Rollinson, Bryan Husin, Huy Le, Alicia Tillery, Colby Mikulich, Dawnna Wilder

Real Estate Development Workshop Projects

In response to the City of Vancouver’s Request for Quote (RFQ), Harbor Development Partners, LLC (HDP) is proud to present The Anchor District: A gateway master plan development that will anchor together Esther Short Park, the historic core, and the new Waterfront District. The theme of this new district is an experiential celebration of the rich culture and history of Vancouver, by way of expansive pavilions, enhanced transit hub, community-centric buildings, placemaking lighting, and an inner-urban promenade that promotes access and blurs the line between private and public spaces. All paths are designed to lead to the centric point of …

Cellular Remains In A ~3.42-Billion-Year-Old Subseafloor Hydrothermal Environment, Barbara Cavalazzi, Laurence Lamelle, Alexandre Simionovici, Sherry L. Cady, Michael J. Russell, Elena Bailo, Roberto Canteri, Emanuele Enrico, Alain Manceau, Multiple Additional Authors

Geology Faculty Publications and Presentations

Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of Earth’s earliest microbial habitats. Although the site of life’s emergence continues to be debated, evidence of early life provides insights into its early evolution and metabolic affinity. Here, we present the discovery of exceptionally well-preserved, ~3.42-billion-year-old putative filamentous microfossils that inhabited a paleo-subseafloor hydrothermal vein system of the Barberton greenstone belt in South Africa. The filaments colonized the walls of conduits created by low-temperature hydrothermal fluid. Combined with their morphological and chemical characteristics as investigated over a range of scales, they can be considered the oldest …

Stemloop-Finder: A Tool For The Detection Of Dna Hairpins With Conserved Motifs., Alyssa A. Pratt, Ellis L. Torrance, George W. Kasun, Kenneth M. Stedman, Ignacio De La Higuera

Center for Life in Extreme Environments Publications

Nucleic acid secondary structures play important roles in regulating biological processes. StemLoop-Finder is a computational tool to recognize and annotate conserved structural motifs in large data sets. The program is optimized for the detection of stem-loop structures that may serve as origins of replication in circular replication-associated protein (Rep)-encoding single-stranded (CRESS) DNA viruses.

Racialized Space: Historical, Economic, And Social Factors Contributing To The Gentrification Of North & Northeast Portland's Albina Neighborhoods, Red Burkett

University Honors Theses

Portland, Oregon has long held the reputation of being a quirky, artistic, mid-size American city for the ecologically friendly and progressively minded. What is less well-known is that Portland has a long history of segregation, racial violence, and public policy that is often viewed as hostile by the Black residents, especially the Albina neighborhoods of North and inner-Northeast Portland. Since Dr. Gibson published Bleeding Albina: A History of Community Disinvestment in 2007, terms such as gentrification, redlining and restrictive racial covenants have become more common in academic and social parlance concerning Portland. In this thesis, we will explore how gentrification …

The Effective Opening: Nonviolent Movements And How They Can Help To Enforce International Law Pertaining To Human Rights, Emmalyn A. Dewing

University Honors Theses

This thesis paper will examine the following question: How can nonviolent movements create enough pressure on human rights-abusing powers so that the enforcement of international law pertaining to human rights is more viable? Through the lens of this question, the paper will argue that one of the most effective ways to fully enforce international law pertaining to human rights is through the success of nonviolent movements whose goals align with it. This paper will further briefly argue that these movements can be helped by the international community through external support in the form of training and advice. To support this …

Travelling For Abortion Services In Mexico 2016–2019: Community-Level Contexts Of Mexico City Public Abortion Clients, Laura E. Jacobson Mph, Biani Saavedra-Avendano, Evelyn Fuentes-Rivera, Raffaela Schiavon, Blair Darney

OHSU-PSU School of Public Health Faculty Publications and Presentations

Objective: To describe the community context of women who travel to access Mexico City’s public sector abortion programme and identify factors associated with travelling from highly marginalised settings.

Methods: We used data from the Interrupción Legal de Embarazo (ILE) programme (2016–2019) and identified all abortion clients who travelled from outside Mexico City. We merged in contextual information at the municipality level and used descriptive statistics to describe ILE clients’ individual characteristics and municipalities on several measures of vulnerability. We also compared municipalities that ILE clients travelled from with those where no one travelled from. We used logistic regression to identify …