Digital Commons Network^™

Increasing Collaboration To Improve Student Outcomes: Improvement Science, Cassandra Diane Thonstad

Dissertations and Theses

The aspiration of achieving equitable outcomes for all students is a focus of schools, districts, and communities but has largely remained unattainable with the top-down implementation of change ideas and directives that come and go as quickly as they are implemented. Too often the direct users, students and classroom staff, are left out of the conversations around what works best to improve student success, contributing to the achievement gaps experienced by our students of color, students receiving special education or English language services, or in the case of a hook discipline, young men. By utilizing Improvement Science through collaboration across …

Mussel Squeeze: Dissolved Oxygen And Temperature Can “Squeeze” Zebra Mussels Out Of Invaded Reservoirs, Crysta Gantz, Rich Miller, Steve Wells, Mark D. Sytsma, Angela Strecker

Environmental Science and Management Faculty Publications and Presentations

Zebra mussels (Dreissena polymorpha) are an aquatic invasive species that cause extensive economic and ecological impacts and are a management priority in areas outside of their native range. Survivorship and distribution of zebra mussels within a waterbody are thought to be influenced by temperature and dissolved oxygen conditions, but detailed information to confirm the importance of these environmental controls is necessary to inform management efforts. We measured planktonic zebra mussel veliger density and adult survivorship in San Justo Reservoir in central California to determine distribution and timing of spawning in relation to temperature and dissolved oxygen throughout winter, spring, and …

Spatial Validation Of Agent-Based Models, Kristoffer Wikstrom, Hal T. Nelson

Public Administration Faculty Publications and Presentations

This paper adapts an existing techno–social agent-based model (ABM) in order to develop a new framework for spatially validating ABMs. The ABM simulates citizen opposition to locally unwanted land uses, using historical data from an energy infrastructure siting process in Southern California. Spatial theory, as well as the model’s design, suggest that adequate validation requires multiple tests rather than relying solely on a single test-statistic. A pattern-oriented modeling approach was employed that first mapped real and simulated citizen comments across the US Census tract. The suite of spatial tests included Global Moran’s I, complemented with bivariate correlations, as well as …

The Time Is Right For An Antarctic Biorepository Network, Kristin M. O’Brien, Elizabeth L. Crockett, Bryon J. Adams, Charles D. Amsler, Hannah J. Appiah-Madson, Allen Collins, Thomas Desvignes, Sarah Eppley, Multiple Additional Authors

Biology Faculty Publications and Presentations

Antarctica is a central driver of the Earth’s climate and health. The Southern Ocean surrounding Antarctica serves as a major sink for anthropogenic CO2 and heat (1), and the loss of Antarctic ice sheets contributes significantly to sea level rise and will continue to do so as the loss of ice sheets accelerates, with sufficient water stores to raise sea levels by 58 m (2). Antarctica's marine environment is home to a number of iconic species, and the terrestrial realm harbors a remarkable oasis for life, much of which has yet to be discovered (3). Distinctive oceanographic features of the …

The Resident View In Community- Based Care Residential Settings, Diana L. White, Ozcan Tunalilar, Serena Hasworth, Jaclyn Winfree

Institute on Aging Publications

The Resident VIEW is a measure of person-centered care (PCC) from residents’ perspectives and was previously studied in nursing homes. The current study presents descriptive data for the Resident VIEW in community-based care settings including assisted living, residential care (AL/RC), and adult foster homes (AFH). Using a two-stage sampling design, we recruited 31 AL/RC and 119 AFH in Oregon and completed face-to-face structured interviews with 227 and 195 residents, respectively. Residents provided ratings for both the importance of and their experience with 66 items that tapped into PCC practices in eight domains. Results are provided for each item, many of …

Confederate Statues In University Opinion Newspaper Articles: An Analysis Of Themes And Attachment, Jamie Nicole Knopf

Dissertations and Theses

Many have asked for Confederate monuments' removal while others argue that they should remain or be recontextualized. Knopf analyzed themes found in Southern university student newspapers on the monument issue and how the statues related to community attachment. Using thematic analysis, Knopf identified six themes across the articles, and found that both removal and recontextualization arguments refer to the ideology behind the statues and the impacts this can have on students. Instances of attachment were used in both removal and recontextualization articles.

Agenda Setting And Europe's Common Immigration Policy, Jamie P. Surface

Dissertations and Theses

For over a decade the European Union has been immersed in an immigration crisis. As the desired destination for millions of people fleeing unrest in the Middle East and war in Ukraine, the EU has developed its own social, political, and humanitarian crisis. Lacking policy commonality across its member states on how to accept and manage the mass waves of migrants, the EU continues to struggle with implementing a common immigration policy. This research examines EU immigration issues, policies, and the failures of successful collaboration stymying the implementation of a standard immigration policy. Using the agenda setting model of John …

Urban Green Roofs Can Support A Diversity Of Parasitoid Wasps, Aramee C. Diethelm, Susan Masta

Biology Faculty Publications and Presentations

Green roofs are often installed atop buildings to provide ecological services such as mitigating storm water runoff and cooling air within urban heat islands. We found that green roofs in Portland, Oregon, also can support biodiversity, including a diverse assemblage of parasitoid wasps, with 20 morphospecies from 10 families present on the four roofs we surveyed. The roofs with greater plant diversity and structural complexity harbored comparatively more parasitoid morphospecies than the structurally simpler Sedum-dominated roofs. The oldest green roof supported much greater diversity than the younger roofs, including a comparably planted roof three times its size. Parasitoid wasps from …

Faculty Senate Monthly Packet December 2022, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The December 5, 2022 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 7, 2022.

Surveilling Threat: The Roles Of Ideology And Threat Perceptions In Support For Islamophobic Policy, Aeleah M. Granger, Kimberly B. Kahn, Joel S. Steele

Psychology Faculty Publications and Presentations

After the attacks on 9/11, Muslims in the United States were the targets of increased surveillance by law enforcement on the basis of their religious identity, often resulting in mistreatment and unjustified imprisonment. The current study examined ideologies that are associated with Islamophobia and support for police surveillance of Muslims, as well as specific types of intergroup threat perceptions that mediate these relationships. Participants (N = 603) completed a survey measuring Social Dominance Orientation (SDO), Right-wing Authoritarianism (RWA), Nationalism, intergroup threat perceptions, Islamophobia, and support for an anti-Muslim police surveillance policy. Results demonstrated that higher levels of SDO, RWA, and …

Effects Of Antecedent Precipitation Amount And Covid-19 Lockdown On Water Quality Along An Urban Gradient, Daniel Ramirez, Heejun Chang, Katherine Gelsey

Geography Faculty Publications and Presentations

Water quality is affected by multiple spatial and temporal factors, including the surrounding land characteristics, human activities, and antecedent precipitation amounts. However, identifying the relationships between water quality and spatially and temporally varying environmental variables with a machine learning technique in a heterogeneous urban landscape has been understudied. We explore how seasonal and variable precipitation amounts and other small-scale landscape variables affect E. coli, total suspended solids (TSS), nitrogen-nitrate, orthophosphate, lead, and zinc concentrations in Portland, Oregon, USA. Mann–Whitney tests were used to detect differences in water quality between seasons and COVID-19 periods. Spearman’s rank correlation analysis was used to …

Scaling Epa-Rimm With Multicore System Management Interrupt Handlers, Alexander K. Freed

Dissertations and Theses

Continuous runtime integrity measurement mechanisms (RIMMs) can be used for timely detection of kernel and hypervisor rootkits. Researchers have proposed running RIMMs in privileged execution environments, such as the x86 architecture’s System Management Mode (SMM), to detect interference from rootkits that have gained control of the host operating system. However, the extended amount of time in SMM required to perform inspections can cause severe disruption to the host. A previously proposed RIMM design called EPA-RIMM addresses this by decomposing long inspections across multiple System Management Interrupts (SMI), the interrupt used to invoke SMM.

EPA-RIMM is intended for deployment on server-class …

The Next Wave Of Abolishing Parking Mandates, Catie Gould, Jeannette Lee

PSU Transportation Seminars

The movement to eliminate parking mandates is having a big moment. This summer, both Oregon and California took statewide action to roll back minimum off-street parking requirements, relegalizing homes and businesses regardless of how many parking spots they have. We’ll take a look at why parking reform is so important, what to expect next in Oregon, and lessons from cities who have already gone all the way to delete this regulation from their zoning code.

Association Of Maternal Age 35 Years And Over And Prenatal Care Utilization, Preterm Birth, And Low Birth Weight, Mexico 2008–2019, Laura Jacobson, Evelyn Fuentes-Rivera, Raffaela Schiavon, Blair Darney

OHSU-PSU School of Public Health Faculty Publications and Presentations

Objective:

We compared prenatal care utilization, preterm birth, and low birth weight neonates among women 35 years and older compared to women 20-34 years old in Mexico, 2008-2019.

Methods:

We used birth certificate data and conducted a historical cohort study of all singleton live births in Mexico from 2008-2019. Study outcomes were inadequate prenatal care (timing of initiation of care and number of visits), preterm birth, and low birth weight. We compared outcomes among women 35-39, 40-44, and 45-49 with births to women 20-34. We used logistic regression to account for individual and contextual confounders.

Results:

We included a total …

Portland Street Response: Year Two Mid-Point Evaluation, Greg Townley, Emily K. Leickly

Homelessness Research & Action Collaborative Publications and Presentations

Executive Summary Excerpt:

Overview of the Program Portland Street Response (PSR), a program within Portland Fire & Rescue (PF&R), assists people experiencing mental health and behavioral health crises. The program operates daily from 8 AM to 10 PM and responds to calls throughout the city of Portland. The team consists of mental health crisis responders, community health medics, community health workers, and peer support specialists. PSR is dispatched from the Bureau of Emergency Communications (BOEC) when a caller reports one or more of the following and the individual has no known access to weapons and is not displaying physically combative …

Feasibility Of Tracking Human Kinematics With Simultaneous Localization And Mapping (Slam), Sepehr Laal, Paul Vasilyev, Sean Pearson, Mateo Aboy, James Mcnames

Electrical and Computer Engineering Faculty Publications and Presentations

We evaluated a new wearable technology that fuses inertial sensors and cameras for tracking human kinematics. These devices use on-board simultaneous localization and mapping (SLAM) algorithms to localize the camera within the environment. Significance of this technology is in its potential to overcome many of the limitations of the other dominant technologies. Our results demonstrate this system often attains an estimated orientation error of less than 1^o and a position error of less than 4 cm as compared to a robotic arm. This demonstrates that SLAM’s accuracy is adequate for many practical applications for tracking human kinematics.

A First-Tier Framework For Assessing Toxicological Risk From Vaporized Cannabis Concentrates, Shawna Vreeke, David M. Faulkner, Robert Strongin, Echoleah Rufer

Chemistry Faculty Publications and Presentations

Vaporization is an increasingly prevalent means to consume cannabis, but there is little guidance for manufacturers or regulators to evaluate additive safety. This paper presents a first-tier framework for regulators and cannabis manufacturers without significant toxicological expertise to conduct risk assessments and prioritize additives in cannabis concentrates for acceptance, elimination, or further evaluation. Cannabinoids and contaminants (e.g., solvents, pesticides, etc.) are excluded from this framework because of the complexity involved in their assessment; theirs would not be a first-tier toxicological assessment. Further, several U.S. state regulators have provided guidance for major cannabinoids and contaminants. Toxicological risk assessment of cannabis concentrate …

Raps Sheet, December 2022, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

Work And Family Pathways And Their Associations With Health For Young Women In Korea, Yujin Kim, Hyeyoung Woo, Sinn Won Han

Sociology Faculty Publications and Presentations

The aim of this study is two-fold: to discern patterns in pathways of work and family transitions among young women (aged 24–39 years) whose decisions and behaviors toward labor force participation, marriage, and parenthood are considerably shaped by social constraints and gender norms; and to examine whether and to what extent work and family pathways are associated with later health. Using data from a longitudinal survey based on a large sample of adult women in Korea (N = 2418), we identified eight dominant pathways of employment, marriage, and parenthood among young women and found that educational attainment and family values …

Applying A Mt. Mazama Volcanic Ash Treatment As A Trail Accessibility Improvement, Charles Riley, Ashton Greer, Matthew D. Sleep

TREC Final Reports

A procedure has been developed for implementing a topically applied Mt. Mazama volcanic ash trail surface amendment for improving trail firmness and stability. This project involved implementation of previously conducted Mt. Mazama volcanic research by applying a Mazama Ash and Portland Cement solution over a 0.2-mile section of the Geo Trail at the Oregon Institute of Technology Klamath Falls campus. Testing was performed to verify ideal Ash-to-Cement-to-Water ratios. A procedure was developed and applied for batching and mixing the dry materials on-site, spreading and integrating the dry material with the existing trail surface, and wetting and compacting the surface. After …

Enabling Decision-Making In Battery Electric Bus Deployment Through Interactive Visualization, Xiaoyue Cathy Liu, Gabrielius Kudirka, Biao Kuang, Yirong Zhou, Jianlin Chen

TREC Final Reports

The transit industry is rapidly transitioning to battery-electric fleets because of the direct environmental and financial benefits they could offer, such as zero emissions, less noise, and lower maintenance costs. Yet the unique spatiotemporal characteristics associated with transit system charging requirements, as well as various objectives when prioritizing the fleet electrification, requires the system operators and/or decision-makers to fully understand the status of the transit system and energy/power system in order to make informed deployment decisions. A recently completed NITC project, No. 1222 titled An Electric Bus Deployment Framework for Improved Air Quality and Transit Operational Efficiency, developed a bi-objective …

Resurfacing A Trail In Oregon Using Volcanic Ash, Charles Riley, Ashton Greer

TREC Project Briefs

In the latest instance of taking research to practice, researchers at Oregon Tech have completed a pilot section of trail using a NITC-developed sustainable paving method. A quarter-mile section of the Klamath Geo Trail, just east and up the hill from the Oregon Tech Klamath Falls campus, has been successfully resurfaced using volcanic ash from Mount Mazama.

Climate Justice And Racial And Gender Equity: Creating And Promoting Featured Collections, Sherry Buchanan

Library Faculty and Staff Publications and Presentations

PDXScholar, the repository for Portland State University, showcases three main collections that are automatically curated based on filters – tags that collect and display the content: Climate Justice, Racial and Gender Equity, and COVID-19. In this presentation, I will give an overview of our featured collections, their development and promotion, including the criteria for inclusion, technical aspects, and impact. The Digital Commons automated collection tool and system configuration will be briefly explained.

The Practice Of Dry Needling In Physical Therapy, Sarah A. Robertson

University Honors Theses

This thesis is a systematic review that discusses the current state of the treatment modality of "Dry Needling" in the field of physical therapy. To do this, current studies of the patient outcomes associated with Dry Needling are analyzed and discussed, as well as legislation at both the state and national levels.

Social Media Impact On Small Brick And Mortar Businesses, David N. Bowles

University Honors Theses

This thesis examines the implementation of various strategies and goals for small to medium brick-and-mortar enterprises regarding their use of social media. Drawing from primary data collection with small brick-and-mortar businesses within the greater metro area of Portland, Oregon, the value of social media is the ability of an organization to create a sense of value for their consumers while promoting positive relations and enhancing the consumer's ability to interact with an organization on a more personal level. Focusing on the implementation of various strategies and promotional efforts to increase the success of these small businesses and align their organizational …

Intersectionality Pertaining To The Disproportionate Rates Of Black Women In Prisons And Jails, Mackenzie Heller

University Honors Theses

The incarceration rates of Black women in America surpass even all other demographics. Yet, Black women are often not on the news when discussing prison rates in the United States. Rather we see Black men, Hispanic men, and so forth. While these people do make up large portions of the prison system they are seeing a decline in their incarceration rates. Black women are often pushed to the sidelines when discussing matters that can be seen as central to their livelihoods.

This thesis addresses the intersectionality that only Black women experience and how that affects their imprisonment rates and experiences …

Working Outside The Binary: Experiences Of Nonbinary Employees In The Workforce, Mordeky C. Dullum

University Honors Theses

Transgender issues in the workplace have only recently become a focus in research, and it is still new and understudied. Even less studied is the demographic of gender expansive individuals including nonbinary and gender non-conforming individuals. This qualitative study aims to explore and highlight workplace experiences for nonbinary people, with a particular focus on younger nonbinary people who experience less employment stability in more public facing jobs. Thirteen participants engaged in interviews where they were asked to describe their experiences dealing with discrimination, harassment and transphobia in the workplace, in addition to sharing their ideas for practical solutions or changes …

The Distribution And Reproductive Success Of The Western Snowy Plover Along The Oregon Coast - 2022, David J. Lauten, Kathleen A. Castelein, Daniel Farrar, Mary Lee, Eleanor P. Gaines

Institute for Natural Resources Publications

We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the central and south coast of Oregon from 1 April – 15 September 2022. We surveyed and monitored plover activity in a project area that included, from north to south, Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River Habitat Restoration Area (HRA) and adjacent lands, and Floras Lake. Our objectives for the project area in 2022 were to: 1) estimate the size of the adult Snowy …

Cruise, A Tool For The Detection Of Iterons In Circular Rep-Encoding Single-Stranded Dna Viruses, Adam Jones, George W. Kasun, Joel Stover, Kenneth M. Stedman, Ignacio De La Higuera

Biology Faculty Publications and Presentations

Iterons are short, repeated DNA sequences that are important for the replication of circular single-stranded DNA viruses. No tools that can reliably predict iterons are currently available. The CRUcivirus Iteron SEarch (CRUISE) tool is a computational tool that identifies iteron candidates near stem-loop structures in viral genomes.

Global Patterns Of Diversity And Metabolism Of Microbial Communities In Deep‑Sea Hydrothermal Vent Deposits, Zhichao Zhou, Emily St. John, Karthik Anantharaman, Anna-Louise Reysenbach

Biology Faculty Publications and Presentations

When deep-sea hydrothermal fluids mix with cold oxygenated fluids, minerals precipitate out of solution and form hydrothermal deposits. These actively venting deep-sea hydrothermal deposits support a rich diversity of thermophilic microorganisms which are involved in a range of carbon, sulfur, nitrogen, and hydrogen metabolisms. Global patterns of thermophilic microbial diversity in deep-sea hydrothermal ecosystems have illustrated the strong connectivity between geological processes and microbial colonization, but little is known about the genomic diversity and physiological potential of these novel taxa. Here we explore this genomic diversity in 42 metagenomes from four deep-sea hydrothermal vent fields and a deep-sea volcano collected …