Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1531 - 1560 of 12128

Full-Text Articles in Entire DC Network

Pathos, Spring 2023, Portland State University. Student Publications Board Apr 2023

Pathos, Spring 2023, Portland State University. Student Publications Board

Pathos

Editor: Stephanie Gresham


Integration Of Chinese Herbal Medicine Into Routine Care Was Related To Lower Risk Of Chronic Kidney Disease In Patients With Rheumatoid Arthritis: A Population-Based Nested Case–Control Study In Taiwan, Hou-Hsun Liao, Hsiao-Tien Chen, Hanoch Livneh, Ming-Chi Lu, Ning-Sheng Lai, Chia-Chou Yeh, Multiple Additional Authors Apr 2023

Integration Of Chinese Herbal Medicine Into Routine Care Was Related To Lower Risk Of Chronic Kidney Disease In Patients With Rheumatoid Arthritis: A Population-Based Nested Case–Control Study In Taiwan, Hou-Hsun Liao, Hsiao-Tien Chen, Hanoch Livneh, Ming-Chi Lu, Ning-Sheng Lai, Chia-Chou Yeh, Multiple Additional Authors

Counselor Education Faculty Publications and Presentations

Objective

Non-steroidal anti-inflammatory drugs (NSAIDs) are frequently used as the first-line agents for the symptomatic relief of rheumatoid arthritis (RA), but it may insidiously provoke the onset of renal diseases, especially chronic kidney disease (CKD). While Chinese herbal medicine (CHM) has become an increasingly popular adjunctive therapy among RA groups, there are currently no available data on the effect of CHM use towards risk of CKD. This study aimed to explore on a population-level whether CHM use decreases sequent CKD risk among them.

Methods

In this nested case–control study retrieved from the nationwide insurance database of Taiwan from 2000 to …


Cyclic Behavior Of Transitional Fine-Grained Soils In Northern Willamette Valley, Frank Jarman Apr 2023

Cyclic Behavior Of Transitional Fine-Grained Soils In Northern Willamette Valley, Frank Jarman

Civil and Environmental Engineering Master's Project Reports

As discussed within studies from Idriss and Boulanger (2008) and Bray and Sancio (2006), the undrained cyclic shear behavior of low-plasticity fine-grained soils will transition between liquefaction (sand-like behavior) to cyclic softening (clay-like behavior) over a narrow range of plasticity index (PI). Despite not being sufficiently understood, the cyclic behavior of low plasticity silts has become an increasingly important field of study due to the significant impact it has on ground deformations and infrastructure failure in areas that are seismically active. Laboratory tests were performed on soils by third party consultants on a site located in the northern Willamette Valley, …


The Impressionist Impact: How Claude Debussy Influenced Non-Western Composers And Music, Ragan Love Apr 2023

The Impressionist Impact: How Claude Debussy Influenced Non-Western Composers And Music, Ragan Love

University Honors Theses

Achille-Claude Debussy (1862-1918) was a French composer and a pioneer in Impressionist music and experimented with an original system of harmony which would shape music for the rest of the 20th century. His work would go on to impact the compositional style of two other composers, Toru Takemitsu (1930-1996), a Japanese composer, and Herbie Hancock (1940- ), a jazz performer and composer. Throughout this project you will see the influence that Debussy had on these other composers through a multimedia experience with scores and recordings. Debussy's use of chromaticism and modal melodies are big contributors to the music of Takemitsu …


Towards Data And Solution-Focused Approaches For Homeless Populations On Publictransit, Anne Nordberg, Jaya Davis, Stephen Mattingly, Nithisha Gudipati, Ebonie Kinney, Hadiisha Butts Apr 2023

Towards Data And Solution-Focused Approaches For Homeless Populations On Publictransit, Anne Nordberg, Jaya Davis, Stephen Mattingly, Nithisha Gudipati, Ebonie Kinney, Hadiisha Butts

TREC Final Reports

People experiencing homelessness frequently rely on public transit systems and facilities as more than a mode of transportation to needed services, but also as safe shelters from weather and danger. This is a challenge for many transit agencies and impacts transit employees and passengers. Dallas and the surrounding counties have the largest homeless population in Texas, and they utilize the services of the Dallas Area Rapid Transit (DART) that serves 220,000 people per day in Dallas County and 12 surrounding counties. While there is much research focused on people experiencing homelessness, there are gaps in understanding how this population utilizes …


Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale, Oregon, Emma Scott Apr 2023

Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale, Oregon, Emma Scott

Environmental Science and Management Professional Master's Project Reports

This management plan has been prepared for the Lower Columbia Estuary Partnership and is intended to provide guidance for the improvement and protection of western painted turtle (Chrysemys picta bellii) habitat at the Sandy River Delta in Troutdale, Oregon. The Sandy River Delta is a 1500-acre natural area situated where the Columbia and Sandy Rivers meet. Its dynamic floodplain habitat supports a diverse assemblage of species, including the western painted turtle, an Oregon Conservation Strategy Species. A small, unknown number of western painted turtles utilize the wetland habitats of the Sandy River Delta, and the frequency in observations …


Homelessness, Water Access, And Environmental Justice In An Urban Environment, Alicia Gamble Apr 2023

Homelessness, Water Access, And Environmental Justice In An Urban Environment, Alicia Gamble

Environmental Science and Management Professional Master's Project Reports

Only in recent years has houselessness been viewed as an environmental justice issue, and little is understood about the environmental injustices of water insecurity among unhoused individuals, especially during the COVID-19 pandemic. In order to understand the environmental injustices (i.e., distributive, procedural, and recognition) of the water insecurity process using the cause-response-effect theoretical model, unhoused participants living near services were interviewed in Portland, Oregon about their lived experiences gaining access to water, the barriers they encounter when trying to access water, and the impacts that result from these barriers. Results revealed that COVID-19 was a barrier to water access and …


An Examination Of The Current Knowledge Of Contaminants In Mangroves: Hawaii And Globally, Geoffrey Szafranski Apr 2023

An Examination Of The Current Knowledge Of Contaminants In Mangroves: Hawaii And Globally, Geoffrey Szafranski

Environmental Science and Management Professional Master's Project Reports

The geographic range of mangrove forests is shifting quickly as they expand poleward in response to climate change while simultaneously being removed from their native extent to clear space for anthropogenic land-uses. Mangrove forests are also known to be sinks for anthropogenic contamination. Yet contamination research is under-researched in mangrove ecosystems, specifically the environmental fate, effect on biodiversity, and risk to human populations from contamination in the context of these changing conditions requires further research. The goal of this thesis is to address this data gap through analysis of contamination in the literature and through an investigational survey of mangrove …


Exploring The Lexical Profile Of Advanced L2 Writers: Longitudinal Data From The Russian Overseas Flagship Program, William J. Comer Apr 2023

Exploring The Lexical Profile Of Advanced L2 Writers: Longitudinal Data From The Russian Overseas Flagship Program, William J. Comer

World Languages and Literatures Faculty Publications and Presentations

This study explores the lexical profile of essays written by 48 advanced learners of second language (L2) Russian who participated in the Russian Overseas Flagship, an intensive year-long study abroad program, designed to help students reach Interagency Language Roundtable (ILR) Level 3 proficiency in all skills. Using the lexical frequency profile (LFP) and P–Lex as measures of vocabulary sophistication, the study found that over the 9 months of the program, students significantly increased their usage of words from the lowest frequency bands. This adds to the findings of Hacking and Tschirner (2017) that knowledge of lexical items at the 3,000–5,000 …


Metadata Decentralized: An Examination Of Folksonomy In Book Publishing, Dani Tellvik Apr 2023

Metadata Decentralized: An Examination Of Folksonomy In Book Publishing, Dani Tellvik

Book Publishing Final Research Papers

Classification of materials as multifaceted and complex as books is fraught with competing needs and idiosyncratic forms of expression and organization. A publisher’s primary goal is to position their books in a way that will attract readers who find value in the books. Book Industry Standards and Communication (BISAC) codes, the list of industry-approved subject headings, are essential to a book’s metadata for North American publishers. They are used to strike the balance so that a book blends in to an established category while also standing out as a particularly compelling of unique expression or the chosen classification.


Music Production And The Creative Process Through The Lens Of Neurodivergence, Blake Fry Apr 2023

Music Production And The Creative Process Through The Lens Of Neurodivergence, Blake Fry

University Honors Theses

This thesis explores the creative process behind the composing and production of three pieces of music through the lens of neurodivergence. It covers and synthesizes the material of three relevant books and applies their concepts toward retrospectively analyzing the experiences behind each piece of music. The goal is to make meaningful progress toward better understanding my personal creative process, the challenges that arise, and how best to resolve them. For these reasons this project should prove enlightening to any neurodivergent creatives or anyone struggling with creativity.


The Satisfaction Clause In Publishing Agreements: A Case Study Of Its Purpose, Controversy, And Future, Maliea Ruby Apr 2023

The Satisfaction Clause In Publishing Agreements: A Case Study Of Its Purpose, Controversy, And Future, Maliea Ruby

Book Publishing Final Research Papers

This research paper examines the satisfaction clause included in publishing contracts, the reason for controversy surrounding it, and what the future may look like for it. This is accomplished by looking at the history of the clause, how it functions in publishing contracts, and three major court cases centered around it. The satisfaction clause allows a client seeking a job done to determine whether the work is satisfactory to them. Much of the time these contracts are written to favor the client, part of the reason for its controversial status. In the context of publishing, the satisfaction clause is important …


Trends In Young Adult Literature: A Quantitative Approach To Characterizing The New York Times Young Adult Bestsellers Of 2020, 2021, And 2022, Anna Wehmeier Giol Apr 2023

Trends In Young Adult Literature: A Quantitative Approach To Characterizing The New York Times Young Adult Bestsellers Of 2020, 2021, And 2022, Anna Wehmeier Giol

Book Publishing Final Research Papers

Understanding how a book becomes a bestseller is one of the biggest mysteries in the publishing industry. This research paper focuses on YA bestsellers and uses a quantitative methodology to try to solve the mystery. Its main objectives are to (1) review the current trends in YA literature and (2) find patterns and similarities in the text of YA bestsellers. By building a dataset and analyzing the 175 books featured in the “Young Adult Hardcover” bestseller list of the New York Times for 2020, 2021, and 2022, the study shows that YA bestsellers share characteristics and patterns, such as the …


Reactions To Latinx Children’S Picture Books From Indie Presses: An Analysis Of Online Consumer Reviews, Karina L. Agbisit Apr 2023

Reactions To Latinx Children’S Picture Books From Indie Presses: An Analysis Of Online Consumer Reviews, Karina L. Agbisit

Book Publishing Final Research Papers

This study analyzed online consumer reviews of children's picture books published by three small, independent presses focused on providing representation of Latinx people and culture. Reviews showed an overwhelmingly positive reaction to the use of bilingual text. Reactions to the use of illustrations support research indicating a preference for bright, colorful images. Additional themes that emerged in reviews include the timeliness of a bilingual book about expressing feelings in the first year of the Covid pandemic; the importance of personal connections to expressions of culture and traditions in the text; the pros and cons of using photographs instead of illustrations; …


Examining The Discovery Behaviors Of Comics Consumers, Tara Mccarron Apr 2023

Examining The Discovery Behaviors Of Comics Consumers, Tara Mccarron

Book Publishing Final Research Papers

The comics consumer base is big and it’s only getting bigger. And yet, very little research has been done on the consumer behavior of comics reads. In order to broaden the accessibility to comics consumer research, this paper examined the discovery behavior of 56 survey participants. The survey included questions pertaining to demographics, frequency of comics consumed, genres of comics consumed, formats used to consume comics, and methods used to discover comics. Due to limited scope, this paper focused solely on format preferences, discovery preferences, and the most-popular genre preferences. Based on this research, graphic novels remained the preferred format …


Telemedicine Among Adults Living In America During The Covid-19 Pandemic, Man Hung, Monica Ocampo, Benjamin Raymond, Amir Mohajeri, Martin S. Lipsky Apr 2023

Telemedicine Among Adults Living In America During The Covid-19 Pandemic, Man Hung, Monica Ocampo, Benjamin Raymond, Amir Mohajeri, Martin S. Lipsky

Institute on Aging Publications

Background and Objectives Telemedicine can expand healthcare access to populations, but relying on technology risks a digital divide. Therefore, it is important to understand who utilizes telemedicine. This study explores telemedicine usage across socio-demographic groups in the United States during COVID-19. Methods Data came from the Household Pulse Survey (HPS) between 14 April 2021, to 11 April 2022. HPS is a rapid online response survey that assesses household experiences during COVID-19. We calculated descriptive statistics and used cross-correlation to test each pair of the time series curves. Results High school graduates used the least telemedicine (20.58%), while those with some …


Comparison Of General Population Vs. U.S. Military Veterans Eating Disorder Prevalence, Micah Callahan Mar 2023

Comparison Of General Population Vs. U.S. Military Veterans Eating Disorder Prevalence, Micah Callahan

University Honors Theses

Eating disorders disrupt the psychological wellbeing, work ability and daily functioning of many individuals. There is currently no data to compare the prevalence of eating disorders in the general public compared to the military population. The hypothesis was that the military population would be significantly higher in prevalence compared to the general population within the general eating disorder, subcategories of eating disorders and between sex. To analyze the data collected from two studies, sixteen two-proportion Z tests were conducted to determine if the proportions of DSM-V eating disorders differed within and between sex for total incidence and sub-category incidence for …


Studies On Bonding, Syntheses, And Applications Of Diarylhalonium Compounds, Shubhendu Karandikar Mar 2023

Studies On Bonding, Syntheses, And Applications Of Diarylhalonium Compounds, Shubhendu Karandikar

Dissertations and Theses

Organic compounds containing functionalized benzenoid rings have found tremendous applications in pharmaceuticals, agrochemicals, commodity chemicals, and beyond. As a result, development of methods for the synthesis of functionalized benzenoid rings has gained much attention from the synthetic community. Although many transition-metal mediated methods to functionalize benzenoid rings are known, there has been an upsurge of activity in developing protocols for decoration of benzenoid cores promoted by p-block elements. This excitement stems from the sustainability of earth-abundant elements and unique reactivity patterns observed within the p-block. Among these, transformations promoted by hypervalent halogen compounds, and especially, the diarylhalonium salts are very …


Realization Of Multi-Valued Logic Using Optical Quantum Computing, Sophie Choe Mar 2023

Realization Of Multi-Valued Logic Using Optical Quantum Computing, Sophie Choe

Dissertations and Theses

Quantum computing is a paradigm of computing using physical systems, which operate according to quantum mechanical principles. Since 2017, functioning quantum processing units with limited capabilities are available on the cloud. There are two models of quantum computing in the literature: discrete variable and continuous variable models. The discrete variable model is an extension of the binary logic of digital computing with quantum bits |0⟩ and |1⟩ . In the continuous variable model, the quantum state space is infinite-dimensional and the quantum state is expressed with an infinite number of basis elements.

In the physical implementation of quantum computing, however, …


Design And Analysis Of High Performance Magnetic Gears For Magnetomechanical Thrusters, Ho Yin Wong Mar 2023

Design And Analysis Of High Performance Magnetic Gears For Magnetomechanical Thrusters, Ho Yin Wong

Dissertations and Theses

This dissertation is devoted to investigating the performance potential of coaxial radial flux modulating magnetic gears for use in propulsive thruster applications. The research has focused on studying magnetic gear designs suitable for use in electric aircraft drivetrains and electric boat thrusters. Consequent pole, flux concentration and Halbach rotor magnetic gear typologies have been analyzed and compared with respect to their torque density performance for the first time. It is shown that the Halbach rotor magnetic gear holds the greatest potential with respect to achieving volumetric and mass torque densities parity with an equivalent mechanical gear.

A high volumetric torque …


Toward Efficient Rendering: A Neural Network Approach, Qiqi Hou Mar 2023

Toward Efficient Rendering: A Neural Network Approach, Qiqi Hou

Dissertations and Theses

Physically-based image synthesis has attracted considerable attention due to its wide applications in visual effects, video games, design visualization, and simulation. However, obtaining visually satisfactory renderings with ray tracing algorithms often requires casting a large number of rays and thus takes a vast amount of computation. The extensive computational and memory requirements of ray tracing methods pose a challenge, especially when running these rendering algorithms on resource-constrained platforms, and impede their applications that require high resolutions and refresh rates. This thesis presents three methods to address the challenge of efficient rendering.

First, we present a hybrid rendering method to speed …


Kurdish Filmmaking In Turkey: History And Narratives, Omar Sadik Mar 2023

Kurdish Filmmaking In Turkey: History And Narratives, Omar Sadik

Dissertations and Theses

This research investigates the history and politics of cultural production by examining Kurdish filmmaking in Turkey. Sadik provide an analysis of contemporary films and filmmakers to explore how Kurdish cinema in Turkey is situated in broader, global political-economic structures. By examining this important case through the lens of history and memory, Sadik clarify how production and aesthetics in Kurdish cinema point to important systemic processes. Sadik uses three main research strategies in this study: a historical survey of Kurds in Turkey, an analysis of ten semi-structured interviews with contemporary Kurdish directors and an analysis of films directed by Kurdish filmmakers …


Uncertainty Quantification And Fragility Development Of Deteriorating Rc Bridge Piers, Ayush Bhandari Mar 2023

Uncertainty Quantification And Fragility Development Of Deteriorating Rc Bridge Piers, Ayush Bhandari

Dissertations and Theses

Corrosion can reduce structural capacity and increase the risk of bridge damage/failure under extreme events. The impact of corrosion on seismic fragility of bridges has been well studied. However, the methodology used in most existing studies requires detailed information on the structural design and condition of a bridge, which is a major hindrance in conducting seismic risk assessment for a large population of bridges. Furthermore, existing studies do not adequately address the time-dependency of uncertainties associated with fragility curve development. This study presents a methodology to generate time-dependent seismic fragility curves for deteriorating highway bridges based only on the limited …


An Exploration Of The Relationship Between Disability Status Disclosure, Accommodation Use, And Student Success: Curricular And Co-Curricular Implications, Kaela Marie Parks Mar 2023

An Exploration Of The Relationship Between Disability Status Disclosure, Accommodation Use, And Student Success: Curricular And Co-Curricular Implications, Kaela Marie Parks

Dissertations and Theses

Colleges and universities rely on the individualized accommodation process to ensure access for students with disabilities, however, there is ample evidence that educational inequity is pervasive. This study used a critical and comparative quantitative methodology (n=6,500) to investigate data from a large urban community college, analyzing the relationship between final grades and accommodation eligibility and use across academic disciplines and curricular modalities (in-person vs. on-line) to identify implications for the academic success of students with disabilities. Results indicate disability inequity varies across racial identity groups and racial inequity persists across disability status groups. Results also indicate that accommodation may be …


Tools For Quantifying Bacterial Motility Using Digital Holographic Microscopy As Applied To Studying The Simulated Microgravity Environment, Jacqueline Marie Acres Mar 2023

Tools For Quantifying Bacterial Motility Using Digital Holographic Microscopy As Applied To Studying The Simulated Microgravity Environment, Jacqueline Marie Acres

Dissertations and Theses

Digital holographic microcopy (DHM) is a label-free technique that has gained attention in recent years as a tool for volumetric imaging. One application of DHM is for the study of microbial motility with the advantage being that organisms may freely move within their environment. Images created from DHM are in the form of holograms. Holograms are time recordings showing XY information with the Z information contained within. Z information can be retrieved from the holograms directly through a variety of numerical techniques or through reconstruction. Datasets generated from DHM are large and processing remains a challenging task. Here, we show …


Surface Roughness Prediction In End Milling Processes Considering The Vibration Of The Cutting Tool, Yubin Lee Mar 2023

Surface Roughness Prediction In End Milling Processes Considering The Vibration Of The Cutting Tool, Yubin Lee

Dissertations and Theses

Purpose: Machining is a manufacturing process for making the desired design with dimensional tolerance and surface roughness. Despite the development of engineering technology, predicting machined surface roughness is still challenging since there are various factors, such as material properties, tool material properties, the rigidity of the machine tool, and the use of coolant. In particular, tool vibration is the most critical factor since it makes it challenging to obtain the desired quality of the machined product by unintentionally making a tool move. Therefore, surface finish was explored in this study, considering cutting tool vibration under various axial depth-of-cuts and feed …


Family–Teacher Relationships And Child Engagement In Early Care And Education, Hillary Lewis, Shannon T. Lipscomb, Bridget E. Hatfield, Roberta B. Weber, Beth L. Green, Lindsey B. Patterson Mar 2023

Family–Teacher Relationships And Child Engagement In Early Care And Education, Hillary Lewis, Shannon T. Lipscomb, Bridget E. Hatfield, Roberta B. Weber, Beth L. Green, Lindsey B. Patterson

Center for Improvement of Child and Family Services Publications

Young children’s positive interactions with teachers and peers in early care and education (ECE) settings support the development of their social and academic skills. Identifying malleable factors that contribute to children’s positive engagement in these interactions is important in supporting early development. The current study examines one potential malleable factor that could be bolstered through supports for families and teachers alike: family–teacher relationships. We investigate associations between three specific domains of family–teacher relationships and children’s engagement in ECE, so that findings are specific and relevant to intervention. We examine data from Oregon’s Quality Rating Improvement System Validation Study; a diverse …


Antecedents Of Fssb: Evaluating The Demographic Basis Of Support, Erika Ann Schemmel Mar 2023

Antecedents Of Fssb: Evaluating The Demographic Basis Of Support, Erika Ann Schemmel

Dissertations and Theses

The benefits of family-supportive supervisor behaviors (FSSB) have been well-documented in recent literature. However, less research has examined the antecedents of FSSB. The present study draws from two theoretical models of FSSB to investigate the demographic antecedents of FSSB in a military sample. Supervisor and employee gender, partnered status, parental status, and elder caregiving status were examined to determine by whom, and for whom, FSSB is provided, as measured by employee perceptions. It is hypothesized that supervisors and employees who are women, partnered, parents, and/or caregivers to elders would have higher employee-ratings of FSSB. Furthermore, the present study applied a …


Faculty Senate Monthly Packet March 2023, Portland State University Faculty Senate Mar 2023

Faculty Senate Monthly Packet March 2023, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The March 6, 2023 Monthly packet includes the March agenda and appendices and the Faculty Senate minutes and attachments from the meeting held February 6, 2023.


The Power Of Algorithms And Big Data: A Marketing Perspective On Consumer Manipulation In Business, Jordan C'Rene Reuille-Dupont Mar 2023

The Power Of Algorithms And Big Data: A Marketing Perspective On Consumer Manipulation In Business, Jordan C'Rene Reuille-Dupont

University Honors Theses

In marketing, predictive analytics molds big data into tools that can create demographics, target pleasurable neuromodulator chemicals like dopamine, and influence individual and societal behavior patterns. Professionals and scholars alike can use machine-based computation to transform big data into usable knowledge that accurately represents and tracks human behavior. In the past couple of decades this has led to the acceleration of the attention economy and has fueled the age of information. It has pushed countries to not only enforce new laws and regulations, but also race to secure control over data science technologies. The research for this thesis will ultimately …