Digital Commons Network^™

Designing A Halbach Rotor Magnetic Gear For A Marine Hydrokinetic Generator, Hossein Baninajar, Sina Modaresahmadi, H. Y. Wong, Jonathan Bird, W. Williams, B. Dechant

Electrical and Computer Engineering Faculty Publications and Presentations

This paper presents the electromagnetic and mechanical design as well as experimental testing results for a 9.5:1 gear ratio, series connected, coaxial magnetic gear (MG) for use in a marine hydrokinetic generator. A 2-D and 3-D magnetostatic finite element analysis (FEA) sizing analysis was also conducted and a torque density comparison between using a nested or series MG typology is presented. To achieve a high torque density a four-segment per pole-pair Halbach rotor assembly with a unique slotted Halbach magnet arrangement was used that enables the Halbach rotor magnets to be more easily assembled, even with dimensional tolerance inaccuracies. A …

Flexibility Is Key: Co-Creating A Rubric For Programmatic Instructional Assessment, Maya Hobscheid, Kristin Kerbavaz

Communications in Information Literacy

This paper describes a project undertaken at Grand Valley State University in which a co-creative model was used to develop a rubric for assessing student learning in library instruction. It outlines the design process as well as the training and support provided throughout implementation. It concludes with the authors’ reflections on the successes and challenges of the process and provides recommendations for future projects.

Review: Envisioning The Framework: A Graphic Guide To Information Literacy, Jonathan D. Grunert

Communications in Information Literacy

Review of Finch, J. L. (2021). Envisioning the framework: A graphic guide to information literacy (ACRL Publications in Librarianship, no. 77), American Library Association.

Ecosystem Connectivity For Livable Cities: A Connectivity Benefits Framework For Urban Planning, Carole Hardy, Catherine De Rivera, Leslie Bliss-Ketchum, Eric P. Butler, Sahan Dissanayake, Dorothy A. Horn, Ben Huffine, Amanda M. Temple, Michael Vermeulen, Hailey Wallace, Jennifer Michelle Karps

Environmental Science and Management Faculty Publications and Presentations

Urbanization disrupts landscapes and ecosystem functions, which poses threats to biodiversity, social systems, and human health, particularly among vulnerable populations. Urban land-use planners are faced with competing demands for housing, safety, transportation, and economic development and often lack tools to integrate these with protecting environmental functions. We identify three major barriers to integrating the benefits that flow with connected, functioning ecosystems into land-use planning. The lack of a shared language among planners and stakeholders poses a barrier to the restoration and preservation of ecological features. Methods of incorporating the benefits from connectivity are not standardized because values are not readily …

Analysis Of Aftershock Parameters For The Alaskan Subduction Zone Tectonic Region, Gabrielle M. Paris

Geology Undergraduate Honors Theses

Forecasting how many earthquakes will occur following a potentially damaging earthquake helps the public and emergency operators stay safe and make informed decisions. The U.S. Geological Survey issues aftershock forecasts following potentially damaging earthquakes, using models to predict the number of earthquakes that should occur within the next day, week, month, and year with 95% confidence to reflect the uncertainty in aftershock behavior. The USGS considers the forecast to be "successful" when the number of earthquakes observed within the forecasted time period is within the 95% confidence interval. For aftershock sequences that occur along the forearc of the Alaskan subduction …

Data-Driven Optimization For E-Scooter System Design, Abolhassan Mohammadi Fathabad, Xiaofeng Li, Jianqiang Cheng, Yao-Jan Wu

TREC Final Reports

The objective of this project is to develop data-driven, decision-making models for shared-mobility system design and operation. Specifically, we will use shared e-scooters as a representative system, with the ultimate goal of facilitating an electric shared-mobility revolution that promises a more sustainable future. In the past few years, shared e-scooter systems have gained increased popularity around the world because of their benefits to health, traffic congestion, the environment, and accessibility. As of 2018, approximately 100 U.S. cities have launched shared e-scooter programs, accounting for 38.5 million trips. However, the business model to manage e-scooter sharing remains nascent, with many challenges …

E-Scooters In Tucson, Az: Modeling Placement, Charging, And Rebalancing, Jianqiang Cheng

TREC Project Briefs

Are e-scooters just the first sign of a shared-mobility revolution? If they are, then researchers at the University of Arizona intend to make sure that the emerging transportation system has functional models on par with other modes of transportation. In 2018, approximately 100 U.S. cities had already launched shared e-scooter programs, accounting for 38.5 million trips. However, the models to manage e-scooter sharing are only recently being developed. In a project funded by the National Institute for Transportation and Communities (NITC) and led by Dr. Jianqiang Cheng, the research team set out to develop data-driven, decisionmaking models for shared-mobility system …

Human Inquiry In Scholarly Communication: Reconnecting With The Foundations Of Research, Emily Ford

Library Faculty and Staff Publications and Presentations

This column discusses refocusing our scholarly communication work on human inquiry and provides actions we can take that will allow us to move forward on that path.

The Duration Of Spontaneous Active And Pushing Phases Of Labour Among 75,243 Us Women When Intervention Is Minimal: A Prospective, Observational Cohort Study, Ellen L. Tilden, Jonathan Snowden, Marit L. Bovbjerg, Jodi Lapidus, Melissa Cheyney, Jack Wiedrick, Aaron B. Caughey

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background

Friedman's curve, despite acknowledged limitations, has greatly influenced labour management. Interventions to hasten birth are now ubiquitous, challenging the contemporary study of normal labour. Our primary purpose was to characterise normal active labour and pushing durations in a large, contemporary sample experiencing minimal intervention, stratified by parity, age, and body mass index (BMI).

Methods

This is a secondary analysis of the national, validated Midwives Alliance of North America 4·0 (MANA Stats) data registry (n = 75,243), prospectively collected between Jan 1, 2012 and Dec 31, 2018 to describe labour and birth in home and birth center settings where …

Portland Public Schools Enrollment Forecast 2022-23 To 2036-37, Based On October 2021 Enrollments, Portland State University. Population Research Center, Charles Rynerson, Christina Wei

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC) for Portland Public Schools (PPS). The study includes analysis of population, housing, and enrollment trends affecting the District in recent years, and annual enrollment forecasts for the District overall, for students residing in each of its high school clusters (HSCLs), for students residing in each school attendance area, and for students enrolled at each school. Enrollment forecasts were prepared under high, middle, and low scenarios for the District. Forecasts for HSCLs, attendance areas, and for individual schools are consistent with the …

Solidarity Divided: The Miike Strike Of 1960 And Fractures Within Japan's Labor Movement During The Cold War, John L. M. Dinh

University Honors Theses

One of the most famous episodes of labor seeking concessions from management in postwar Japan was the Miike strike of 1960 in Ōmuta, Fukuoka Prefecture. The goal of the striking coal miners was to pressure management of the Mitsui Mining Company to rescind over a thousand notices that would force those affected into "voluntary retirement," most targeted union members who were hostile to management. However, there was a lack of unity among the strikers where the miners split between the "first union" and the "second union." The first union was hostile to management and opposed such rationalization measures entirely. The …

How Can Biomimicry Inform A Sustainable, Ethical Future In Architecture And Design?, Chloe Hanf

University Honors Theses

This publication traces effects of systems theory and assemblage thinking on American architecture and design since the 1960's in relation to contemporary ecological thought and biological discoveries. Building upon these observations, the author concludes that biomimicry belongs at the forefront of contemporary theory and praxis in architecture and design.

Feminism And #Metoo In The Lives Of Orthodox Jewish Women, Rebecca S. Battin

University Honors Theses

In recent years, the #MeToo movement in the US has normalized discussing sexual harassment and assault against women, as well as encouraged survivors to come forward with their experiences like never before. Though this movement has undoubtedly affected much of secular and even religious America, how much has the #MeToo movement affected the more extreme, conservative communities of Orthodox Judaism? Though some research has been conducted as to the effects of the patriarchy and sexual assault on women in some Jewish communities, there is little research regarding how the women in these communities may have been impacted by the recent …

Intervention Approaches For Childhood Apraxia Of Speech: An Overview Of Prevailing Treatment Methods, Toni Lewis

University Honors Theses

This paper aims to describe the theory and methods of select intervention approaches for childhood apraxia of speech so readers may better understand current treatment techniques. Covered in this paper are Rapid Syllable Transitions (ReST), Dynamic Temporal and Tactile Cueing (DTTC), Prompts for Restructuring Oral Muscular Phonetic Targets (PROMPT), as well as supplemental techniques such as augmentative and alternative communication (AAC) and ultrasound biofeedback. Also covered briefly are instances of CAS treatment in languages other than English.

Assessing The Accessibility Of The Judicial System's Arrest-To-Parole Timeline For People Who Are D/Deaf And Hard-Of-Hearing, Evelyn G. Birnbaum

University Honors Theses

The judicial system is inaccessible to many groups of people for a variety of reasons, one of those populations being the d/Deaf and Hard of Hearing community (DHH). This community faces prejudice and discrimination in many institutions because of their identity, but within the justice system, this prejudice is compounded and controlled by poor legislation and either the lack of, or barriers to, effective communication. At every point in the chronological timeline from getting arrested to achieving parole, individuals who are d/Deaf or Hard of Hearing face discrimination and obstacles that their hearing counterparts do not. The discrimination they face …

Analyzing Perceptions And Outcomes Of Intimate Partner Violence Within Muslim Communities, Areebah Zaidi

University Honors Theses

Intimate partner violence is a complex issue that involves gender, race, sexuality, religion, and culture. Muslim communities are a combination of many identities and to be able to support the community, there needs to be a better understanding of how IPV is expressed within this population. This thesis reports findings from a survey distributed throughout Muslim networks and IPV organizations in the US. The results are based on 200 responses and demonstrate that individuals with a history of IPV have worse social and health outcomes. In addition, the source of IPV disclosure (e.g., healthcare provider, religious leader) depended on whether …

Montessori Schools: How And Why Do They Impact Student Relationships And Communication Skills?, Jacquelyn G. Zavala

University Honors Theses

Montessori schooling, created by physician and educator Maria Montessori, is a well-known alternative to the traditional style of teaching. Many researchers have focused on how the Montessori method can produce successful and well-rounded students, not only academically, but within the social realm as well. What is less known is the extent to which Montessori impacts the social development of children and their forming of peer relationships and why it does so. After looking into and discussing the previous literature written on this topic, this thesis project utilizes reviews with two individuals with experience in the primary level Montessori setting to …

The American Grammar Of Policing As An Afterlife Of Slavery: Arguments For An Abolition Democracy, Emily E. Buss

University Honors Theses

Prison abolition has entered mainstream conversation in recent years as the uniquely American carceral system comes increasingly under fire for its racial disparities, police brutality and prison labor. While these issues are sometimes framed as newly emerging, this paper utilizes a Foucauldian genealogical approach in conversation with works by W. E. B. Du Bois, Angela Davis, and other thinkers from the black radical tradition to interrogate the evolving tendencies and underlying historical forces of racial capitalism and white supremacy that shape the contemporary American prison industrial complex. Emerging out of the experience of racial slavery, these forces constitute what Hortense …

Literature Review: The Relationship Between Art And Anxiety, Madeline R. Armendariz Sullivan

University Honors Theses

In this literature review, several articles and studies are discussed to address the question: What is the relationship between making art and anxiety? Within the literature discussed, three themes are reviewed: the effects of making art on anxiety, the long-term impacts of making art, and making art and other psychological conditions. The literature reviewed suggested that making art significantly improves the symptoms of anxiety, helps participants achieve meditative, or flow, states, improves the participants' emotional regulation and quality of life, and that making art helps with comorbidity and even other psychological conditions besides anxiety disorders.

Impact Of Familial Immigration On Childhood Academic Achievement And Motivation, Maritsa S. Tatchukova

University Honors Theses

This paper conducted a review of the current literature on the topic of immigrant children and academic success. It particularly focuses on the role of key factors such as family, peers, teachers, self-perceptions, language, and extracurriculars. This paper then discusses the study done in addition to the literature review. The study involved interviewing six college students in the Pacific Northwest. All were a mix of first and second-generation children of immigrants. The study conducted a qualitative analysis of the interview transcript and discusses the results of four of those interviews. The findings suggest that the role of the family and …

The Process Of Publishing A Crow Book, Claire L. Curry

University Honors Theses

This creative thesis consists of a book on crows in urban environments and an accompanying craft essay exploring the publishing process of the book.

The crow book explores crows in urban environments, where cities offer them warmth and protection from predators. Crows are intelligent; they’re able to recognize human faces. Their diet often overlaps human food sources, which has led to historical conflict. Crows also have a strong presence in human culture. For these reasons, they thrive in cities, and this creates a complex relationship since people also have concerns regarding noise, cleanliness, and aesthetics.

The craft essay reflects on …

Social Media Marketing And Insurance: An Analysis Of The Impact Of Social Media Marketing On Small Independent Brokerages Of Property And Casualty Insurance, Kaylee B. Brucker

University Honors Theses

Property and casualty insurance is an intangible service. It is a large industry within the US that in most regard is perpetual. Marketing for insurance is not similar to marketing for most other services or products. The agent must relay the value to the consumer prior to them purchasing it. Further, when considering social media marketing, we find a separate strategy of marketing. Social media marketing is becoming increasingly popular, it has shown as a successful strategy for obtaining consumers' attention and their business. This success has been seen in many industries, including insurance. However, there is a lack of …

The Gendered Optics Of Bridget Riley's "Op Art": Her Artistic Dismissal And Influence On The 1960s Mod Era, Anna S. Kienberger

University Honors Theses

The English painter Bridget Riley (1931-) is widely regarded as one of Britain's most successful international contemporary artists. The progression of her career to reach such acclaim, however, has been marked by consistent misperceptions, the greatest of which arose during the beginning of her ascent when she was pointedly positioned as a leading figure of both Optical Art and United Kingdom Mod fashion. The critical reception of Bridget Riley's early work (1961-67) and its appropriation by Mod fashion retailers provide interesting case studies of (1) the commercialization of art before the establishment of US copyright law and (2) the conversations …

The Cultural Dilemma Of The American Education System: An Observation Of How It Lives In Montessori, Amaya Varma

University Honors Theses

This thesis acts as a case study examining the culture of a Montessori school by highlighting major themes from a selection of interviews. The intention is not to measure the amount of diversity in this school, but rather to provide an observation of people's understanding of the concept. It intends to show the limits and contradictions of any schooling project which concerns the structural constraints of the American education system. It reveals an internal "culture of kindness" which is constructed in this school and argues that Montessori education could be amenable to instilling certain values which allow for students to …

The Impact Of Maternal Nutrition On The Development And Severity Of Generalized Anxiety Disorders In Rodent And Non-Human Primate Studies, Esmeralda H. Cardoso

University Honors Theses

Generalized anxiety has become more prevalent among children and adolescents in the United States which impacts their health and livelihood. Maternal nutrition during pregnancy is purported to play a role in cognitive development and mental health during childhood, adolescence, and into adulthood. The Developmental Origins of Health and Disease theory suggests maternal nutrition before and during pregnancy influences transgenerational susceptibility, onset, and severity of disease through epigenetic mechanisms that then impact the child’s overall health, including cognitive development and mental health later in life. A literature review of rodents and non-human primate studies was conducted to explore the association between …

Reflecting On Resilience: Insight Into Resiliency Development And Utilization In Oregon's Older Adults From 2020 To 2022, Riley A. Wilton

University Honors Theses

The events of the last 2 years have complicated the lives of older adults throughout the world. For many, their survival can be traced back to one key trait: resilience. In the state of Oregon, the years 2020-2022 came with a host of issues that expanded past the COVID-19 pandemic. These events provide context for the world our storytellers discuss.

Using a snowball recruitment strategy through the efforts of community organizations and senior centers, 4 storytellers sat down to describe their resilience in different ways. They were asked to reflect on their own life experiences, how it influenced their resilience, …

Yay…, ��, And #Sarcasm: Exploring How Sarcasm Is Marked In Text-Based Cmc, Brontë G. Gordon

University Honors Theses

Sarcasm is a complex phenomenon of indirect speech, when we intend a meaning different from that of the literal words we use. In face-to-face settings (FtF), facial expressions, body language, and prosodic cues can be helpful indicators of sarcasm. It becomes even harder to decipher when these physical cues are removed as in any written setting. This paper explores what text strategies are used to mark sarcasm in text-based English language communication online. Through a systematic literature review, the similarities and differences of irony and sarcasm were explored, as well as the issues these parallels and distinctions create in delineating …

The Sack Of Rome, Sean M. Coloma

University Honors Theses

In 410, Goths under the command of Alaric sacked the ancient city of Rome. This event was significant in the decline and fall of the Roman Empire. It may have been seen by some at this time as a massive shock that Rome could have been attacked like this, but in the previous decades, there were a host of warning signs that something like this lay in the near future for the empire. This sack could not have happened the way it did without the perfect conditions being established in the decades leading up to it. The Roman Empire had …

Understanding Ch4 Emissions From Compostables: An Exploration Of Local Ch4 Emissions From Landfilled Compostables And The Efficacy Of Emission Mitigation Via Anaerobic Biogas Digestion, Jordan-Yoosuf Aljbour

University Honors Theses

Methane (CH₄) is the second most abundant anthropogenic greenhouse gas within the atmosphere, comprising ~16% of the total anthropogenic greenhouse gas composition on Earth. It has an ~12-year lifetime relative to its eventual oxidation via reaction with tropospheric hydroxyl radicals (OH), and has a 100-year indirect global warming potential (GWP) approximately ranging between 28-36 [Environmental Protection Agency, 2021]. In recent years, the observed average global concentration of atmospheric CH₄ has increased by ~11.0% from 2020 (~15.3 ppb) to 2021 (~17.0 ppb) [Dlugokencky et al., 1994; National Oceanic and Atmospheric Administration, 2022]. With …

The Effect Of Stem Education On Women, Jasmine Gloden

University Honors Theses

This inquiry seeks to establish the effect of a STEM education on labor market outcomes for women. Gender differences in interest and performance in STEM fields begin at an early age, and remain steadfast through education and into the labor market. Due to factors like lack of female role models in STEM, gender stereotypes, and lack of growth mindset in terms of intellectual abilities, women can be discouraged throughout their education from continuing in a STEM education or pursuing a STEM occupation. Using data from the Education Longitudinal Study of 2002, I determined the effect of a STEM education for …