Digital Commons Network^™

Utilitarian Skateboarding: Insight Into An Emergent Mode Of Mobility, Michael Joseph Harpool

Dissertations and Theses

In recent years research and planning efforts to enhance the conditions and opportunities for active transportation modes have increased significantly; however, these efforts have primarily focused on pedestrians and bicyclists. Skateboarding and other alternative modes of mobility remain an untapped potential for healthy and sustainable travel. This research addresses numerous knowledge gaps in the literature on utilitarian skateboarding under the larger umbrella of active transportation. Analysis of online survey results and semi-structured interviews with skateboarders in Portland, OR provides insight into the motivations and barriers of traveling by skateboard and the demographics and perceptions of skateboard commuters. Like bicyclists and …

Principal And Teacher Beliefs About The Impact Of Cbas On School Performance: Five High Performing High Schools In Oregon, Kevin Jon Ricker

Dissertations and Theses

This qualitative study examined how school leaders work within the structure of individual district collective bargaining agreements to improve student achievement. The study examines real or perceived barriers to improving student achievement within educational organizations from the perspective of the principals and teacher-leaders.

This study included two qualitative instruments, one for building principals and one for the building teachers, administered in five Oregon high schools recognized as successful by the Oregon Department of Education in 2014-2015. This dissertation determined the impact collective bargaining agreements had on the ability of high school principals to reduce educational disparities and close the achievement …

Politics In The Social Media Era: The Relationship Between Social Media Use And Political Participation During The 2016 United States Presidential Election, Kevin Everett Curry

Dissertations and Theses

The growth of social media use raises significant questions related to political information and its effect on political knowledge and participation. One issue is whether social media delivers news and political information in a similar manner as traditional news media sources, like newspapers, TV, and radio, by contributing to political knowledge, which is linked to voter turnout. This dissertation examines the relationship between an individual's social media use, their use of traditional news media sources, and whether they turn out to vote. It utilizes American National Election Survey data from the 2016 U.S. Presidential election to complete three studies. First, …

"Tindersluts" & "Tinderellas:" Examining Young Women's Construction And Negotiation Of Modern Sexual Scripts Within A Digital Hookup Culture, Mackenzie A. Christensen

Dissertations and Theses

While a growing body of literature exists examining how intersecting social identities and structural organizations shape the on-campus hookup script, research examining the impact of technology on the hookup culture has been virtually nonexistent. Addressing this gap, this study adds to a current body of literature on the hookup culture and online dating by exploring how a diverse sample of young women and non-binary, femme individuals understand and negotiate interpersonal sexual scripts through the mobile dating app Tinder. Ultimately, findings from 25 in-depth interviews reveal how Tinder has shaped the sexual scripts of young adult dating into a "hybrid hookup …

Neighbor Perceptions Of Psychiatric Supportive Housing : The Role Of Knowledge, Attitudes, And Behaviors, Amy Leigh Shearer

Dissertations and Theses

Purpose: Historically, communities have opposed the development of residential programs for adults with psychiatric disabilities. In the last two decades, national and local campaigns have made targeted efforts to improve public knowledge about mental illness, and attitudes and behaviors towards mental health clients. Supportive housing policies have also been revised to better facilitate integration and independence for clients with psychiatric disabilities. Despite these changes, the number of studies on perceptions of psychiatric supportive housing has dramatically declined in recent years. Little is known about how neighbors currently perceive psychiatric housing and neighbors with mental illness, or the role that mental …

Framing Physical Activity: Weight Control Frames And Physical Activity Motivation, Kristin Spurkland

Dissertations and Theses

Public health institutions and popular media frequently frame weight loss and weight control as primary benefits of physical activity. This exploratory, descriptive study examined how respondents rated statements exemplifying three physical activity frames: a weight control frame, a medical frame, and an active embodiment frame. An anonymous, online survey was conducted in March 2018; respondents rated frame statements in terms of inspiring motivation to engage in physical activity, and in terms of perceived credibility. They also provided anthropometric data and physical activity data. Data were analyzed for the entire sample as well as stratified by multiple variables, including body mass …

Millennial Perceptions On Homeownership And Financial Planning Decisions, Margaret Ann Greenfield

Dissertations and Theses

This master's thesis investigates the economic factors that are affecting the financial decision-making of educated, middle to upper class Millennials in Los Angeles, California. This thesis explores how economic factors, preferences, and self-efficacy interact to determine housing pathways. This thesis also asks whether Millennials in Los Angeles will be able to afford homes and how the cultural narrative of the American Dream affects preferences. In order to answer these questions, twenty in person interviews are conducted with residents of Los Angeles in which they are asked about their values and preferences regarding housing, and the economic factors they are currently …

Empoword: A Student-Centered Anthology & Handbook For College Writers, Shane Abrams

PDXOpen: Open Educational Resources

EmpoWord is a reader and rhetoric that champions the possibilities of student writing. The textbook uses actual student writing to exemplify effective writing strategies, celebrating dedicated college writing students to encourage and instruct their successors: the students in your class.

Through both creative and traditional activities, readers are encouraged to explore a variety of rhetorical situations to become more critical agents of reading, writing, speaking, and listening in all facets of their lives. Straightforward and readable instruction sections introduce key vocabulary, concepts, and strategies. Three culminating assignments (Descriptive Personal Narrative; Text-Wrestling Analysis; Persuasive Research Essay) give students a chance to …

The Role Of Caregiver Disruption In The Development Of Juvenile Sexual Offenders, Miranda Sitney

Dissertations and Theses

In the last decade, it has been recognized that juveniles commit as much as 20% of all sexual offenses in the United States (DOJ, 2004). Research that attempts to understand why young people commit sex crimes points to an array of family factors that may uniquely contribute to the development of sexual offending over and above general juvenile delinquency. This study specifically examines disrupted caregiving, or receiving insufficient or substitute care, as a potential moderator in the relationship between offense status and caregiver-child relationship quality. Four distinct moderators were tested: gender of caregiver, biological relationship between caregiver and child, number …

Anarchism On The Willamette: The Firebrand Newspaper And The Origins Of A Culturally American Anarchist Movement, 1895-1898, Alecia Jay Giombolini

Dissertations and Theses

The Firebrand was an anarchist communist newspaper that was printed in Portland, Oregon from January 1895 to September 1897. The newspaper was a central catalyst behind the formation of the culturally American anarchist movement, a movement whose vital role in shaping radicalism in the United States during the Progressive Era has largely been ignored by historians. The central argument of this thesis is that the Firebrand publishers' experiences in Gilded Age Portland shaped the content and the format of the newspaper and led to the development of a new, uniquely American expression of anarchism.

Anarchism was developed in response to …

Verb Stem Alternation In Vaiphei, Jesse Prichard

Dissertations and Theses

This thesis describes the form and function of verb stem alternations (VSAs) in Vaiphei, a Kuki-Chin (KC) language belonging to the larger Tibeto-Burman branch of the Sino-Tibetan language family. In the existing literature on Vaiphei and Kuki-Chin verb stem alternations, there is no treatment of the form and function of Vaiphei verb stem alternations and how they may be used in classifying Vaiphei in the broader Northern Kuki-Chin language family. I document the form and function of Vaiphei verb stem alternations, showing how these compare to other Northern Kuki-Chin languages and where to classify Vaiphei in Northern Kuki-Chin.

Participants were …

Comparative Genetic And Genomic Analysis Of The Novel Fusellovirus Sulfolobus Spindle-Shaped Virus 10, David Andrew Goodman

Dissertations and Theses

Viruses that infect thermophilic Archaea are unique in both their structure and genetic makeup. The lemon-shaped fuselloviruses - which infect members of the order Sulfolobales, growing optimally at 80º C and pH 3 - are some of the most ubiquitous and best studied viruses of the thermoacidophilic Archaea. They provide a malleable and useful genetic tool for probing into the functions of their host, as well as the host responses to infection. Nonetheless, much about these viruses remains to be learned to further understand their morphological, genetic, and life cycle characteristics.

In order to investigate these aspects of these …

An Experimental Study On The Impact Of Informal Rape Myth Education To Alter Rape Myth Acceptance Scores In A Non-Student Sample, Leah Noelle Reddy

Dissertations and Theses

Sexual assault has come to the forefront in terms of prevention and education for many social institutions such as college campuses. However, with a growing body of research highlighting the importance and effectiveness of interventions, research examining the impact of rape-related education on altering rape myth acceptance (RMA) among non-student populations is severely lacking. This is a problematic gap given the issue of sexual assault in the United States extends well beyond academia. The current study aimed to fill this gap by employing an experimental design with repeated measures. To detect changes in RMA after a short rape myth education …

Electro-Drop Bouncing In Low-Gravity, Erin Stivers Schmidt

Dissertations and Theses

We investigate the dynamics of spontaneous jumps of water drops from electrically charged superhydrophobic dielectric substrates during a sudden step reduction in gravity level. In the brief free-fall environment of a drop tower, with a non-homogeneous external electric field arising due to dielectric surface charges (with surface potentials 0.4-1.8 kV), body forces acting on the jumped drops are primarily supplied by polarization stress and Coulombic attraction instead of gravity. This electric body force leads to a drop bouncing behavior similar to well-known phenomena in 1-g₀, though occurring for much larger drops (~0.5 mL). We show a simple …

Research & Strategic Partnerships: Quarterly Review, Volume 5, Issue 1, Portland State University. Research & Strategic Partnerships

Portland State Research Magazine

This issue of the Research Review highlights some of the research PSU faculty and students are exploring:

• How microplastics and chemicals used in forest management regimes affect species living in the state’s estuarine and nearshore environments;
• Whether we can store thermal energy generated during the summer months in saline aquifers deep below the region for use during the winter;
• How community partnerships at Southeast Portland’s Earl Boyles Elementary School can improve school readiness and achievement;
• How much food Oregonians waste and why;
• Historical patterns of housing discrimination in the city, and
• How to launch a nanosatellite that will support STEM …

Effects Of Substrate Depth And Precipitation Characteristics On Stormwater Retention By Two Green Roofs In Portland Or, Isaac Schultz, David Sailor, Olyssa Starry

University Honors College Faculty Publication and Presentations

Study Region: This study took place in Portland Oregon, a city of over 600,000 residents located in the Willamette Valley in the state of Oregon in the Pacific Northwest region of the United States. Portland experiences a temperate climate with Mediterranean features. Study Focus: Runoff patterns from two extensive green roofs with substrate depths of 75 and 125 mm, situated on a 5000 square meter retail store, were compared over a one year period. Precipitation, irrigation, and storm water discharge were continuously monitored and the performance of the green roofs for storm water control was investigated in detail. New Hydrological …

The Silencing Power Of Algorithms: How The Facebook News Feed Algorithm Manipulates Users' Perceptions Of Opinion Climates, Callie Jessica Morgan

University Honors Theses

This extended literature review investigates how the architecture and features of the Facebook Newsfeed algorithm, EdgeRank, can inhibit and facilitate the expression of political opinions. This paper will investigate how Elisabeth Noelle-Neumann's theory on public opinion, Spiral of Silence, can be used to assess the Facebook news feed as a political opinion source that actively shapes users' perceptions of minority and majority opinion climates. The feedback loops created by the algorithm's criteria influences users' decisions to self-censor or express their political opinions with interpersonal connections and unfamiliar connections on the site.

Lessons From The Past: Analyzing A Multipolar World And Shifting Transatlantic Relationships, Andrew Russo

Student Work

Rival ideologies and states, some new, some ancient, are emerging to create a multipolar world where regional spheres of influence arise out of the space abandoned by a weakening American ideology and state. New challenges have arisen during this latest shift in global power dynamics. States and the complex mechanisms and relationships that comprise them are now interacting as a power vacuum develops, seeking both standing and hegemony. How these interactions affect rising regional powers will have drastic consequences for future stability, peace, and progress and the current state of affairs, if history is to serve as a lesson, is …

Community-Based Assessment Of Smart Transportation Needs In The City Of Portland, Aaron Golub, Michael Serritella, Vivian Satterfield, Jai Singh

TREC Final Reports

The Portland Smart Cities UB Mobile PDX proposal focuses strongly on developing mobility solutions that would serve traditionally underserved populations (low-income, communities of color, and residents with mobility challenges). As the proposal now moves into a plan, this project explores and assesses the transportation challenges in traditionally underserved communities and explores how smart mobility solutions embedded in Mobile PDX can best be crafted to meet the needs of low-income and traditionally underserved residents in Portland, OR, focusing especially on East Portland. This project assists in that effort by developing a community-based needs assessment involving an analysis of existing data sets, …

Reorganizing School Lunch For A More Just And Sustainable Food System In The Us, Jennifer Gaddis, Amy K. Coplen

Urban Studies and Planning Faculty Publications and Presentations

Public school lunch programs in the United States are contested political terrains shaped by government agencies, civil society activists, and agri-food companies. The particular organization of these programs has consequences for public health, social justice, and ecological sustainability. This contribution draws on political economy, critical food studies, and feminist economics to analyze the US National School Lunch Program, one of the world's oldest and largest government-sponsored school lunch programs. It makes visible the social and environmental costs of the "heat-and-serve" economy, where widely used metrics consider only the speed and volume of service as productive work. This study demonstrates that …

Focal Point, Volume 32, Portland State University. Regional Research Institute

Research and Training Center - Focal Point

This issue of Focal Point includes a series of research summaries that reflect the state of the science and project descriptions focused on the theme of community integration for youth and young adults who experience serious mental health conditions. Space in Focal Point is limited, and this has meant that we are only able to include short versions of each of these articles. However, more detailed versions of most of the articles – including extensive reference lists – are available on the Pathways RTC website. We encourage you to take a look at these longer versions for further detail and …

Small Non-Coding Rna Expression And Vertebrate Anoxia Tolerance, Claire L. Riggs, Amanda Summers, Daniel E. Warren, Göran E. Nilsson, Sjannie Lefevre, W. W. Dowd, Sarah Milton, Jason E. Podrabsky

Biology Faculty Publications and Presentations

Background: Extreme anoxia tolerance requires a metabolic depression whose modulation could involve small non-coding RNAs (small ncRNAs), which are specific, rapid, and reversible regulators of gene expression. A previous study of small ncRNA expression in embryos of the annual killifish Austrofundulus limnaeus, the most anoxiatolerant vertebrate known, revealed a specific expression pattern of small ncRNAs that could play important roles in anoxia tolerance. Here, we conduct a comparative study on the presence and expression of small ncRNAs in the most anoxia-tolerant representatives of several major vertebrate lineages, to investigate the evolution of and mechanisms supporting extreme anoxia tolerance. The epaulette …

Comparative Genetic And Genomic Analysis Of The Novel Fusellovirus Sulfolobus Spindle-Shaped Virus 10, David Andrew Goodman, Kenneth M. Stedman

Biology Faculty Publications and Presentations

Viruses that infect thermophilic Archaea are unique in both their structure and genetic makeup. The lemon-shaped fuselloviruses—which infect members of the order Sulfolobales, growing optimally at 80 C and pH 3—are some of the most ubiquitous and best studied viruses of the thermoacidophilic Archaea. Nonetheless, much remains to be learned about these viruses. In order to investigate fusellovirus evolution, we have isolated and characterized a novel fusellovirus, Sulfolobus spindle-shaped virus 10 (formerly SSV-L1). Comparative genomic analyses highlight significant similarity with both SSV8 and SSV9, as well as conservation of promoter elements within the Fuselloviridae. SSV10 encodes five ORFs with no …

Survey Of Oregon Electric Vehicle & Hybrid Owners, John Macarthur, Michael Joseph Harpool, Daniel Scheppke

TREC Final Reports

The market for electric vehicles (EVs) is changing dramatically in the United States. Federal and state policies have been adopted to promote research and development in EV technology and to increase the number of EVs available in order to support increasing rates of EV ownership. The state of Oregon has one of the highest per-capita EV sales markets in the country. However, much is to be done if Oregon is to reach their ambitious goal of complete electrification of the private automobile industry by 2050. The goal of this study is to illuminate some of the current challenges and opportunities …

The Galleon Cargo: Accounts In The Colonial Archives, Cameron La Follette, Douglas Deur, Esther González

Anthropology Faculty Publications and Presentations

Much of the debris that has washed up on the shores of the northern Oregon coast for centuries were mainstays of Spanish trade carried as cargo across the world on Manila galleons. Both Native people and Euro-Americans have recovered large beeswax chunks, lending to the lore of the “Beeswax Wreck,” as well as Chinese blue-and-white porcelain fragments. In this article, Cameron La Follette and Douglas Deur describe research findings about cargo on the Santo Cristo de Burgos and similar Manila galleons, including the San Francisco Xavier of 1705, the previous favored candidate for the Oregon wreck. La Follette and Deur …

Precipitation Impacts On Groundwater Levels In The Ephemeral Holgate Lake: A Modflow Inquiry, Amory Cervarich

Civil and Environmental Engineering Undergraduate Honors Theses

Holgate Lake, an ephemeral lake located in southeast Portland, has a history of flooding and inundating residential areas. The appearance of the lake is hypothesized to be a function of precipitation-driven changes in groundwater levels. A model was developed using MODFLOW-NWT, a U.S. Geological Survey (USGS) modular hydrologic program, to analyze parameters contributing to the appearance of the lake. The model was most sensitive to changes in aquifer properties including hydraulic conductivity and storativity. The model displayed low sensitivity to changes in precipitation, evapotranspiration, and conductance of surface waters. Results from the analysis contribute to a better understanding of the …

The Lived Experiences Of Student Parents At A 4-Year Institution Of Higher Education, Nancy Dayne

National Student Parent Success Symposium: Lifting Generations Together

College students who are parents are a unique population whose voices are not often represented. This session will look at the research results on the childcare needs of over 750 college students who are parents at a large 4-year Hispanic Serving Institution, on the West-Coast. This presentation will present the voices of student parents and their struggle with support services needed to succeed at an institution of higher education.

Dr. Nancy Dayne- Nancy is an assistant professor at California State University Long Beach (CSULB), in the area of Child Development and Family Studies. She has a BA in Child Development …

Student Legal Services, Richard Slottee, April Kuster

National Student Parent Success Symposium: Lifting Generations Together

Student Legal Services offices across the country provide free legal assistance to students. This presentation will highlight typical legal issues faced by families, the applicable resolution processes, including the judicial system, and the challenges faced by many SLS offices.

Richard graduated from the University of Oregon Law School in 1972 and joined Multnomah County Legal Aid Services as a staff attorney. In 1978 he went to work at Lewis and Clark Law School as a professor and Director of the Lewis and Clark Legal Clinic. The Legal Clinic taught practical lawyering skills to law students through the pro bono representation …

Toll-Like Receptor 7 Expression And Function On Sensory Nerves, Karol Wai

University Honors Theses

Background: Toll-like receptor 7 (TLR7) is a single-stranded RNA receptor expressed on airway epithelium that detects respiratory viruses and triggers an immune response. Recently, we found airway sensory nerves also express TLR7, although its role on nerves is unknown.

Objective: To characterize TLR7 expression on airway sensory nerves, and to determine the effects of neuronal TLR7 stimulation.

Methods: Vagal and dorsal root ganglia were isolated from female Hartley guinea pigs (~400g) and fixed in zinc formalin. Nerves were immunolabeled with antibodies against TLR7 and either neurofilament-1(NF-H) to identify A�� fiber sensory nerves or transient receptor potential V1 (TRPV1) to identify …

What's New Pussyhat? Men, Feminism, And Social Identity, Rachel Lee Crist

Dissertations and Theses

Current understandings of feminism do not seek to dissuade men from feminism as a movement; moreover, men's inclusion in the feminist movement is seen as paramount to achieving equality and dismantling all forms of hegemonic power. Past research has shown that identification with a social movement is a strong predictor for participation in social change, more so than belonging to a disadvantaged social category. Despite this, there is nascent literature on how men define, identify as, and practice feminism. This study draws from a thematic analysis of three focus groups of self-identified males to investigate their self-identification as feminist. Using …