Digital Commons Network^™

A Hierarchical Decision Model To Evaluate Healthcare Organization's Readiness To Implement Clinical Decision Support Systems, Mohammed Oussama Laraichi

Dissertations and Theses

Clinical Decision Support Systems (CDSS) are essential tools for healthcare organizations as well as for healthcare providers to improve clinical care. However, successful implementation of CDSS can be challenging. Therefore, before implementing CDSS, it is crucial to assess the readiness of healthcare organizations to implement these tools.

Through a literature review, the first step of this research explores the concept of clinical decision support and CDSS, discussing their features, characteristics, and organizational hurdles to implementation. It also provides perspectives on CDSS adoption in the context of Information Systems and Health Technology. The review helped identify research gaps, objectives, and questions. …

Comparing True Maternal And Paternal Care In Pair-Living, Ex-Situ Varecia Rubra (Red Variegated Lemurs) Contextualized Among Other Primate Cooperative Breeders, Payton Elizabeth Zuver

Dissertations and Theses

Observations of variegated lemurs in the wild have revealed a cooperative breeding strategy including extensive male care to young, primarily in the form of infant guarding. This thesis presents an analysis of the first quantitative assessment of true paternal and true maternal care from pair-housed, ex-situ red variegated lemurs (V. rubra) housed at the Lemur Conservation Foundation's Myakka City Lemur Reserve in western Florida. This study aims to answer specific research questions: How do paternal and maternal care compare when resources are abundant, and paternity is certain? Is male care instinctual? Is it driven by energetic necessity? If …

Stakeholder Engagement In Urban Public Transportation Agencies In The United States, Tyler Joseph Wolfe

Dissertations and Theses

Major urban public transportation agencies in the United States are often under pressure to engage stakeholders in order to improve both the legitimacy and effectiveness of their transit systems. Based on qualitative methods of directed content analysis, this dissertation answers three related questions: (I) How do internal organizational qualities affect stakeholder engagement? (II) How do external socioeconomic factors affect stakeholder engagement? and (III) Does stakeholder engagement lead to better performance? Using a most similar comparative case study design, this research studies stakeholder engagement in five major urban public transportation agencies (Denver, Oklahoma City, Seattle, Portland, and Memphis). It demonstrates the …

Local Voices: Counterstorytelling And Retention Of Faculty Of Color In Oregon's Community College System, Kristin Christophersen

Dissertations and Theses

The Oregon community college system employs a full-time faculty workforce that is overwhelmingly White. This study aimed to research why the representation of faculty of color in the state’s community colleges remains low by conducting interviews with faculty of color about their experiences at these public 2-year institutions using counterstorytelling as research methodology. Using critical race theory as a theoretical framework, this study collected and analyzed the counterstories of seven faculty of color in a variety of institutions and regions across one state about their experiences with institutional racism and how it impacts their persistence strategies and retention patterns.

Developing A Sample-Efficient Analytical Pathway For A Qualitative Chemical Investigation Of Ancestral Chilkat Dyeing And Weaving Practices, Dario Gerlando Durastanti

Dissertations and Theses

The project goal is to identify the dyestuffs used in hand-woven Chilkat blankets from the collection of the Alaska State Museum and the Sheldon Jackson Museum. Chilkat weaving is practiced by Northwest coastal clans, particularly in Southeast Alaska since at least the early 19th century. Through this collaboration, 117 wool fibers from 23 Chilkat textiles, and 193 reference samples consisting of dyed fibers using both natural and synthetic dye sources, raw dye material, and dye bath aliquots were provided to the lab for reference characterization and identification. In these analyses, dyes were classified as being either natural or synthetic, subdivided …

A Gridded Co2 Emissions Inventory For Portland, Or, James E. Powell

Dissertations and Theses

Here we develop a new high resolution inventory of CO₂ emissions for the three Oregon counties which comprise the bulk of the City of Portland, Oregon, USA. Locally curated and long-running data collection efforts for on-road traffic activity and emission rates are used to model on-road emissions, and a new survey of the area's natural gas network informs the building energy model. The inventory estimates total emissions of CO₂ for each hour of the year 2018 in the on-road, residential, and commercial building sectors at 1 km² resolution. The onroad inventory compares to within 3% with an …

Implementing A Functional Logic Programming Language Via The Fair Scheme, Andrew Michael Jost

Dissertations and Theses

This document presents a new compiler for the Functional Logic programming language Curry based on a novel pull-tabbing evaluation strategy called the Fair Scheme. A simple version of the Fair Scheme is proven sound, complete, and optimal. An elaborated version is also developed, which supports narrowing computations and other features of Curry, such as constraint programming, equational constraints, and set functions.

The Fair Scheme is used to develop a new Curry system called Sprite, a high-quality, performant implementation whose aims are to promote practical uses of Curry and to serve as a laboratory for further research. An important aspect of …

Experiences Of People With Serious Mental Illness Seeking Services At Community Mental Health Centers During The Covid-19 Pandemic, Emily Leickly

Dissertations and Theses

Community mental health centers (CMHCs) have been underfunded and overburdened since Reagan-era disinvestment and the United States' move toward neoliberalism. Rates of mental illness have been rising consistently, particularly in Oregon, as CMHCs face continuing financial pressures and staff retention issues. This was before the COVID-19 pandemic. Today, we are still trying to understand the ongoing pandemic's impact on people with serious mental illnesses (SMI). Most of the studies in this area thus far are quantitative, and first-hand accounts of the pandemic from people with SMI are largely absent. Additionally, research in this area fails to draw on critical alternative …

Nothing About Youth Without Youth: Involving Youth In Participatory Action Research Conducted With Health Departments, Vivian Cortes

Dissertations and Theses

Background: Health departments are vital to community-partnered public health efforts and research and are positioned to influence community or policy level systems that impact population health. However, while some health departments partner with community members in their programming, not much is known about health departments partnering with community youth. From 2018-2019 the New York City Department of Health & Mental Hygiene (NYC DOHMH) implemented a youth participatory action research (YPAR) project to develop a public awareness campaign in partnership with youth and adult community stakeholders for a federally funded program. It was the first participatory research conducted by the agency …

Phytoplankton Community As An Indicator Of Cyanobacteria Harmful Algal Blooms In High Mountain Lakes, Victoria Elizabeth Avalos

Dissertations and Theses

Cyanobacteria blooms are a growing issue worldwide and can be harmful to both aquatic life and human health. Warm temperatures, nutrient loading, stable water columns, and selective grazing of zooplankton and phytoplankton can contribute to cyanobacteria bloom formation. In this study, I characterized the algal communities and water quality differences in two physiographically similar lakes with relatively little human influences, Odell and Crescent Lakes, Oregon, to better understand potential contributing factors to cyanobacteria harmful algal bloom formation (cyanobacteria bloom) in Odell Lake.

There are three hypotheses in this study:

1. If there was a cyanobacteria bloom in Odell Lake, but not …

Mitochondrial Roles In Developmentally Programmed Heart Disease, Eli John Louwagie

Dissertations and Theses

Offspring of diabetic and obese mothers (ODOM) have greater risks of heart disease at birth and later in life. However, prevention is hindered because underlying mechanisms are poorly understood. Mounting studies in the Developmental Origins of Health and Disease field suggest that mitochondria play key roles in developmentally programmed heart disease similar to the roles they play in cardiomyopathy in adults with diabetes and obesity. However, whether mitochondria are responsible for the short[1]and long-term cardiac disease seen in ODOM remains unknown. Here, we sought to delineate the roles of mitochondria in the hearts of ODOM, determine whether mitochondria are playing …

The Use And Influence Of Health Indicators In Municipal Transportation Plans, Kelly Christine Rodgers

Dissertations and Theses

Transportation is an important social determinant of health that shapes the places where people "live, learn, work, and play" to the extent that an individual's zip code better predicts their health than their genetic code. Researchers and practitioners have called for the use of health indicators in transportation as one way to integrate public health concerns into transportation. The underlying hope is that new organizational routines, such as measuring and tracking indicators, can translate policy goals into policy practice. However, it is unclear how indicators are used and what impact they have on policy--the creation or modification of policies and …

Main, Mediated, And Moderated Effects Of Participating In An After-School Social And Emotional Learning Program On Young Children's Development Of Social-Emotional Skills, Amy L. Cordier

Dissertations and Theses

Young children's social and emotional skills (SE skills) are highly predictive of the ease with which they transition to kindergarten as well as their success in the K-12 school system and in life after graduation. Children from low socioeconomic status (SES) backgrounds often enter kindergarten with less well-developed SE skills and lag their peers throughout their school careers. Studies of social-emotional learning (SEL) programs indicate that these programs are successful in teaching SE skills, both in school and in after-school programs. However, less is known about the mechanisms of changes through which SEL programs improve children's SE skills and for …

Increasing Access To Doulas In Oregon: A Delphi Study, Courtney Elizabeth Crane

Dissertations and Theses

Doulas are trained, nonmedical support professionals that provide continuous emotional, informational, physical, and practical support before, during, and after childbirth. Doula care has been shown to reduce the cost of birth-related healthcare, reduce adverse birth outcomes, and increase patient satisfaction and positive birth experience. In 2011 Oregon became the first state to authorize payment expenditures of doula care through Medicaid as a strategy to reduce birth-related health disparities and increase culturally and linguistically appropriate healthcare delivery. The intention of the set of policies and administrative rules was to mandate access to doulas and other types of Traditional Health Workers (THWs) …

An Evaluation Of The Effectiveness Of Innovation Ecosystems In Facilitating The Adoption Of Sustainable Entrepreneurship, Dana Sami Bakry

Dissertations and Theses

Sustainable entrepreneurship has a substantial role of a steadily growing economy and advanced industrial economies. Several strategies have been formed and employed to support the adoption of innovation and technologies in the sustainable entrepreneurship sector. However, the successful outcome of these strategies in achieving their goals depends on how effective they are in satisfying their objectives and thus increasing innovation adoption. One measurement for effectiveness of ecosystem implements can be their support to the input of the process of innovation and technologies adoption and their impact on satisfying regional goals.

The objective of this research is evaluating the effectiveness of …

Bodyslam: Feasibility Of Tracking Human Kinematics With Simultaneous Localization And Mapping (Slam), Sepehr Laal

Dissertations and Theses

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° and a position error of less than 4cm as compared to a robotic arm. This demonstrates that SLAM's accuracy is adequate for many practical applications for tracking human kinematics.

Impacts Of Floodplain Restoration On Water Temperature And Macroinvertebrates In Whychus Creek, Oregon, Wesley Nathan Noone

Dissertations and Theses

Stream restoration is a proposed climate adaptation tool, however, outcomes of floodplain restoration on stream temperature have been debated. Despite a growing number of studies that investigated water temperature in restored streams, few have quantified thermal heterogeneity in new habitat types created by restored hydrogeomorphic processes and the impact of thermal diversity on the aquatic macroinvertebrate community. In this study, I evaluated three hypotheses: 1) restoration increases habitat diversity, 2) habitat diversity increases water temperature heterogeneity, and 3) restored reaches have more diverse macroinvertebrate communities. I collected a total of 40 macroinvertebrate samples and characterized environmental conditions in three reaches …

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, …

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 …

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

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

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

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 …

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 …

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 …

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 …

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 …

Diversity In Recruitment: The Role Of Realistic Website Job Previews For Racial And Ethnic Minority Applicants, Jennifer Saucedo

Dissertations and Theses

Prior research has examined the effects of diversity-related recruitment on racial and ethnic minority applicants, but less research has focused on how objective and realistic information about diversity influences applicant outcomes. Drawing from previous literature on realistic job previews (RJPs) and social identity theory (SIT), the current study investigates how recruitment material with objective racial demographic information (i.e., percentage of racial minorities employed) and leader diversity testimonials (i.e., positive or realistic) on diversity recruitment webpages affect racial and ethnic minority applicant outcomes (i.e., organizational attraction, sense of fit, and organizational trust) using a 3x2 between-person experimental design. Finally, the study …

Design And Optimization With Quantum And Memristor Platforms, Yiwei Li

Dissertations and Theses

The complexity and diversity of modern computing challenges have made it difficult for traditional computers to efficiently handle tasks such as computer-aided design, design optimization, and combinatorial problems within a reasonable time frame. In applications such as bitcoin mining and robotic control, power consumption and circuit size are critical factors. To overcome these limitations, this dissertation examines alternative computing technologies such as quantum computers and hybrid memristive circuits. The research demonstrates that these technologies hold the potential to offer more efficient and effective solutions for particular problems, whether in terms of faster computation or reduced power consumption.

Global Climate Governance: Does Bilateral Cooperation Matter?, Nataliya Stranadko

Dissertations and Theses

The international relations literature looks at the climate regime from a perspective of power distribution, state interests, institutions, and multilateral negotiations. The international law literature focuses on legal analysis and design of international climate agreements. The transnational governance literature examines the participation of transnational actors at different levels of governance. However, each of these disciplines overlooks the trend in bilateral cooperation between national and subnational actors in a multilateral setting, which arises as part of the construction of the international regime. Why do national and subnational public actors in global climate governance cooperate bilaterally when multilateral cooperation already exists? What …