Digital Commons Network^™

Campus Sexual Assault And (In)Justice: An Inquiry Into Campus Grievance Professionals' Roles, Responsibilities, And Perspectives Of Justice, Liane Kehaulani O'Banion

Dissertations and Theses

Approximately one in four women experience sexual violence in college. Public institutions of higher education identify professionals specifically responsible for Title IX compliance, campus grievance processes, and survivor advocacy. Success in these roles depends upon a variety of institutional, legal, and procedural factors, and the ability to balance compliance, accountability, transparency, confidentiality, and care for students in pursuit of institutional justice. However, the literature has failed to acknowledge the complexities and individual cost of serving in these contentious roles. Moreover, facets of organizational culture can hinder grievance professionals' efficacy in fulfilling their duties, facilitating consistent and fair resolutions, and ensuring …

Little Russia: Patterns In Migration, Settlement, And The Articulation Of Ethnic Identity Among Portland's Volga Germans, Heather Ann Viets

Dissertations and Theses

The Volga Germans assert a particular ethnic identity to articulate their complex history as a multinational community even in the absence of traditional practices in language, religious piety, and communal lifestyle. Across multiple migrations and settlements from the eighteenth to the twentieth centuries, the Volga Germans' self-constructed group identity served historically as a tool with which to navigate uncertain politics of belonging. As subjects of imperial Russia's eighteenth-century colonization project the Volga Germans held a privileged legal status in accordance with their settlement in the Volga River region, but their subsequent loss of privileges under the reorganization and Russification of …

"On The Murder Of Rickey Johnson": The Portland Police Bureau, Deadly Force, And The Struggle For Civil Rights In Oregon, 1940 - 1975, Katherine Eileen Nelson

Dissertations and Theses

On March 14, 1975, twenty-eight year old Portland Police Officer Kenneth Sanford shot and killed seventeen-year-old Rickie Charles Johnson in the back of the head during a sting operation. Incredulously, Johnson was the fourth person of color to be shot and killed by Portland police within a five-month period. Due to his age and surrounding circumstances, Johnson's death by Sanford elicited extreme reactions from varied communities of Portland. Unlike previous deaths of people of color by the police in Portland, Johnson's death received widespread attention from mainstream media outlets. In response, some white citizens decried Johnson's death as unjustified police …

Bounding Box Improvement With Reinforcement Learning, Andrew Lewis Cleland

Dissertations and Theses

In this thesis, I explore a reinforcement learning technique for improving bounding box localizations of objects in images. The model takes as input a bounding box already known to overlap an object and aims to improve the fit of the box through a series of transformations that shift the location of the box by translation, or change its size or aspect ratio. Over the course of these actions, the model adapts to new information extracted from the image. This active localization approach contrasts with existing bounding-box regression methods, which extract information from the image only once. I implement, train, and …

An Exploration Of Linear Classifiers For Unsupervised Spiking Neural Networks With Event-Driven Data, Wesley Chavez

Dissertations and Theses

Object recognition in video has seen giant strides in accuracy improvements in the last few years, a testament to the computational capacity of deep convolutional neural networks. However, this computational capacity of software-based neural networks coincides with high power consumption compared to that of some spiking neural networks (SNNs), up to 300,000 times more energy per synaptic event in IBM's TrueNorth chip, for example. SNNs are also well-suited to exploit the precise timing of event-driven image sensors, which transmit asynchronous "events" only when the luminance of a pixel changes above or below a threshold value. The combination of event-based imagers …

Dark Current Rts-Noise In Silicon Image Sensors, Benjamin William Hendrickson

Dissertations and Theses

Random Telegraph Signal (RTS) noise is a random noise source defined by discrete and metastable changes in the magnitude of a signal. Though observed in a variety of physical processes, RTS is of particular interest to image sensor fabrication where progress in the suppression of other noise sources has elevated its noise contribution to the point of approaching the limiting noise source in scientific applications.

There have been two basic physical sources of RTS noise reported in image sensors. The first involves a charge trap in the oxide layer of the source follower in a CMOS image sensor. The capture …

Assessment Of Policy Alternatives For Mitigation Of Barriers To Ev Adoption, Bilgehan Yildiz

Dissertations and Theses

Electric Vehicle (EV) has become an increasingly important topic in recent years due to energy and environmental concerns. Governments started to focus on remedies to the upcoming climate change threat and seek solutions through policies and regulations. The negative impact of carbon emissions along with pressure from governmental and social organizations force automotive manufacturers to shift to alternative energy sources. However, EV transition is a complex problem because its stakeholders are very diverse including governments, policy makers, EV manufacturers, and Non-Government Organizations (NGOs). Consequently, the barriers to EV adoption are not only consumer oriented, rather exist under many categories. The …

An Analysis Of The Bizx Commercial Trade Exchange: The Attitudes And Motivations Behind Its Use, Ján André Montoya

Dissertations and Theses

The Global Financial Crisis underscored both the complexity and brittleness of the global financial system, especially for small to medium enterprises dependent on the current banking regime for credit. More than ever, we have also begun to see the disentanglement of small businesses from traditional banks at the local and regional level in the form of CDFIs, fintech alternative lending, and now complementary currencies. Through interviews with the management and members of the BizX complementary currency this study asks what the attitudes and motivations are behind its offering and use. In addition, it inquires into the economic and psychological benefits …

Dual Immersion Leadership: A Case Study Of Three K-5 Principals Who Show Success With Emergent Bilinguals, Ivonne Karina Dibblee

Dissertations and Theses

In the past decade the number of dual language immersion programs in US public schools has grown to more than 2000. The benefits of dual language immersion for emergent bilinguals (EBs) have been confirmed by numerous studies. However, lacking from this literature is research which focuses on leadership within dual immersion schools. Despite an upsurge in the number of immersion schools, few studies examine the characteristics of effective immersion leaders. The aim of this study is to examine the leadership characteristics of principals leading K-5 dual language immersion programs who have increased student achievement among EBs.

The purpose of this …

Stakeholder Expectations Of Islamic Education, Julia Marie Ahmed

Dissertations and Theses

Teachers and parents make considerable sacrifices to affiliate themselves with Islamic schools. As they commit to Islamic education, they acquire certain expectations that they want their school to fulfill. The purpose of this study was to explore the academic, social, and cultural expectations of five teachers and five parents in an Islamic School on the West Coast in order understand how these expectations could be fulfilled in other Islamic schools across the United States. The main research questions of this study were: What are the academic, social, and cultural expectations that parents and teachers have of their Islamic schools? To …

Composition And Dispersal Dynamics Of Vegetation Communities In Urban Riparian Forests, Christa Von Behren

Dissertations and Theses

In urban riparian areas, vegetation composition may be affected by urban land use changes at both the stream reach and the watershed scale. Moreover, the mechanisms by which seeds disperse may be affected both by reduction in seed sources due to vegetation removal and by the urban stream syndrome that produces flashier hydrographs and incised channels. I hypothesized that vegetation communities with high cover of native and hydrophilic species would be found in watersheds with high forest cover, while more limited cover of these species would be found in highly developed watersheds. Additionally, to examine the dispersal mechanisms contributing to …

Anti-Lgb Hate Crimes: Political Threat Or Political Legitimization?, Johanna R. Shreve

Dissertations and Theses

While activists and others have argued that the legitimization of biased attitudes and stereotypes by political leaders foments violence against minority groups, criminological research in the U.S. has focused more on "threat" hypotheses that view hate crime as a retaliatory response to perceived gains or encroachment of targeted groups. Another view suggests that heightened public visibility of hate crimes or other bias issues, usually in the form of media coverage, increases hate crimes. This study compares the effect on anti-LGB crimes of events representing political threat (a court decision legalizing marriage equality) and political legitimization of bias (passage of a …

Achieving Organizational Ambidexterity: An Exploratory Model, Using Fuzzy Cognitive Maps, Yasser Alizadeh

Dissertations and Theses

Over the course of three to four decades, most well-established companies lose their dominating position in the market or fail entirely. Their failure occurs even though they have resources for sensing shifting market trends, skills and assets to develop next-generation technologies, and the financial means to fill skill gaps and afford risky investments. Nevertheless, incumbents obviously find it very difficult to invest in innovation that takes attention and resources away from a highly successful core business. A solution to this "innovator's dilemma" is the concept of "organizational ambidexterity," which has garnered considerable attention among researchers in organization and innovation. According …

Latinas And Sexual Health: Correlates Of Sexual Satisfaction, Christine Marie Velez

Dissertations and Theses

Latinas/os are one of the fastest growing and most heterogeneous minority ethnic groups in the US. One in 5 women in the US are Latina; by 2060, it is projected that Latinas will compose 1/3 of the female population. Latinas continue to experience disparities in sexual and reproductive health outcomes compared to non-Hispanic whites. While factors impacting undesirable consequences of sexual activity for Latinas have been well documented, Latinas' experiences with sexual satisfaction in the broader context of sexual health remains understudied, despite sexual satisfaction having been identified as an integral component of sexual health. A focus on positive sexual …

Reconciling The Opportunities And Obstacles Of Motherhood Following Corrections Involvement, Summer Brooke Newell

Dissertations and Theses

This mixed methods dissertation is comprised of three papers that consider interrelated ways in which social bonds, within the context of parenting, are experienced by women recently involved with the corrections system. Types of social bonds considered include agency professionals, romantic partners, and children--all previously theorized to play a role during the reentry period. These social bonds are considered within the context of the challenges experienced during this period, and how and why these social bonds may--or may not--support women as they transition back into the community.

Bilingual Teachers' Experiences: Being English Learners, Becoming Teachers, And Bilingual Education, Carrie Susan Larson

Dissertations and Theses

Bilingual students are the fastest growing demographic group in U.S. P-12 public schools and offer promise and hope to our increasingly global workforce. However, many bilingual students are lagging behind in school, too many do not complete high school, and their schooling experiences are overshadowed by racial and linguistic segregation, low-academic tracking, and subtractive educational experiences. There is a growing body of literature that recognizes the importance of bilingual and bicultural teachers and leaders who can include students' linguistic, cultural, and community assets in school. This qualitative research study explores the experiences of a specialized group of elementary bilingual and …

Evaluating The Effectiveness Of Justice Reinvestment Legislation In Oregon: Analyses Of State And County Implementation, Christopher Wade Dollar

Dissertations and Theses

Sentencing reform and "tough on crime" policies have assisted in the inflation of the United States' prison population by nearly 400% over the last 50 years. In 2003, justice reinvestment was conceptualized as a way to decrease recidivism and remedy the exorbitant correctional spending by reinvesting funds on rehabilitation and reentry assistance to those leaving custodial institutions. Early implementations of justice reinvestment in Connecticut and Texas achieved both savings and reductions in prison populations. This led to the creation of the Justice Reinvestment Initiative by the U.S. Bureau of Justice Assistance in 2010. Officials of the Justice Reinvestment Initiative sought …

Woodpeckers In The City: Habitat Use And Minimum Area Requirements Of Woodpeckers In Urban Parks And Natural Areas In Portland, Oregon, Adam Baz

Dissertations and Theses

Urbanization has contributed to the fragmentation and alteration of natural habitats around the globe, and is rapidly increasing. In this context, forested parks play a critical role for many species by providing patches of usable habitat within the urban matrix. Such patches may be particularly valuable to forest-specialists like woodpeckers (Picidae). Yet many woodpeckers require large forest patches, which are limited in fragmented landscapes. Despite their recognized value as ecosystem engineers and keystone species, almost no research exists on woodpecker ecology or space-use in urban settings. What habitat components influence woodpecker abundance and what are their functional minimum area requirements …

Role Of Spouse/Partner In Fertility Preservation Decision Making By Young Women With Cancer, Aakrati Mathur

Dissertations and Theses

Partners play a critical role in making decisions about fertility preservation among young patients with cancer, yet little is known about these dyadic decisions when planning cancer treatment. Fertility preservation entails helping cancer patients preserve fertility after cancer treatment. This qualitative study investigated: 1) Heterosexual couples' responses to potential fertility loss; 2) their process in making fertility preservation decisions; 3) their ethical and legal concerns, and 4) recommendations for other couples undergoing similar treatment.

Semi-structured interviews were conducted with 12 heterosexual couples whose female partners were diagnosed with cancer and had received fertility preservation consultations within the past 5 years. …

Perception Of The Online Degree By Accounting Hiring Gatekeepers Of Mid-Size Firms In The Northwestern U.S., Domanic Thomas

Dissertations and Theses

The latest research shows over 2.8 million higher education students or one-in-seven are enrolled in fully online programs. In fields such as accounting, students are able to complete their degree, pass a standardized exam, and enter the workforce with little to no work experience. Accounting firm human resources managers are primarily responsible for the recruitment and selection of candidates. Prior studies conducted show that these hiring gatekeepers prefer candidates with earned degrees in a traditional classroom environment when holding constant for all other factors. While many students invest in online degrees as an ideal pathway to employment, career advancement, and …

The Dispute Over The Commons: Seed And Food Sovereignty As Decommodification In Chiapas, Mexico, Carol Frances HernáNdez RodríGuez

Dissertations and Theses

Seeds have become one of the most contested resources in our society. Control over seeds has intensified under neoliberalism, and today four large multinational corporations control approximately 70 percent of the global seed market. In response to this concentration of corporate power, an international social movement has emerged around the concept of seed sovereignty, which reclaims seeds and biodiversity as commons and public goods. This study examines the relationship between the global dynamics of commodification and enclosure of seeds, and the seed sovereignty countermovement for decommodification. I approach this analysis through an ethnographic case study of one local seed sovereignty …

Does Avid Higher Education (Avid He) Increase Student Term-To-Term Progression, Persistence Toward Credited Classes And Social Capital For First-Generation College Students Placing Into Developmental Education: A Mixed Methods Study, Christie M. Plinski

Dissertations and Theses

Often considered the gateway to the middle class in the United States, community colleges are struggling to find ways to support all students in career planning and preparation. Unfortunately, increasing numbers of first generation students who enter community colleges through the door of open access, place into developmental education (remedial) courses and must satisfactorily complete this often-rigid sequence before beginning college level classes. For many first-generation, under-prepared, underresourced students, this is a frustrating and often insurmountable barrier, causing many students to abort their postsecondary training.

Creating intentional conditions and instructional strategies that support student learning is essential in increasing the …

New Approaches For Memristive Logic Computations, Muayad Jaafar Aljafar

Dissertations and Theses

Over the past five decades, exponential advances in device integration in microelectronics for memory and computation applications have been observed. These advances are closely related to miniaturization in integrated circuit technologies. However, this miniaturization is reaching the physical limit (i.e., the end of Moore's Law). This miniaturization is also causing a dramatic problem of heat dissipation in integrated circuits. Additionally, approaching the physical limit of semiconductor devices in fabrication process increases the delay of moving data between computing and memory units hence decreasing the performance. The market requirements for faster computers with lower power consumption can be addressed by new …

A Study Of Fragmentation And Spontaneous Covalent Self-Assembly Of The Azaorcus Ribozyme From Multiple Small Inactive Rna Fragments, Tharuka Sewwandi Jayathilaka

Dissertations and Theses

The question about the origins of life often appears as a difficult question to answer. A more reliable candidate molecule for the chemical origins of life would be a molecule that is capable of making copies of itself from simple precursors. With the finding of the catalytic activities of RNA molecules by Thomas Cech and Sid Altman in late 1980s, the term ribozyme was introduced to define an RNA molecule with catalytic activity. The RNA World is a conceptual period in the early stages in the development of life because RNA simultaneously possesses evolvability and catalytic function. An RNA molecule …

Flexural Strength, Ductility, And Serviceability Of Beams That Contain High-Strength Steel Reinforcement And High-Grade Concrete, Anas Yosefani

Dissertations and Theses

Utilizing the higher capacity steel in design can provide additional advantages to the concrete construction industry including a reduction of congestion, improved concrete placement, reduction in the required reinforcement and cross sections which would lead to savings in materials, shipping, and placement costs. Using high-strength reinforcement is expected to impact the design provisions of ACI 318 code and other related codes.

The Applied Technology Council (ATC-115) report "Roadmap for the Use of High-Strength Reinforcement in Reinforced Concrete Design" has identified key design issues that are affected by the use of high-strength reinforcement. Also, ACI ITG-6, "Design Guide for the Use …

How Persevering Latina/O First-Generation College Students Navigate Their College Experience: Keeping Who They Are While Learning And Persisting In The Culture Of College, Angela Judith Balcacer

Dissertations and Theses

Latina/o first-generation college students, along with their families, are learning a new culture when considering going to four-year universities. While the conversation involving Latina/o first-generation college students can often focus on attrition, I am interested in exploring what, from participants' point of view, are the successes they experience as well as the most challenging obstacles they encounter on their journey to graduating from four-year universities. Employing the theoretical frameworks of constructivism, critical race theory, and cultural capital, the purpose of this study was to go beyond the conversation of Latina/o first-generation college student attrition by examining how they navigate postsecondary …

Building Climate Empire: Power, Authority, And Knowledge Within Pacific Islands Climate Change Diplomacy And Governance Networks, Ashlie Denée Denton

Dissertations and Theses

Transnational networks are growing in prevalence and importance as states, nongovernmental, and intergovernmental organizations seek to meet climate change goals; yet, the organizations in these networks struggle between the global, technical and local, contextual sources of power, authority, and knowledge used to influence decision-making and governance. This dissertation analyzes these contestations in Pacific Islands climate change diplomacy and governance efforts by asking: i) What do power relations look like among the Pacific Islands' networked organizations? ii) To what authority do organizations appeal to access sources of power? iii) What sources of knowledge are produced and reproduced by these organizations? and …

Completion Of Dna Replication In Escherichia Coli, Brian Michael Wendel

Dissertations and Theses

To maintain genomic integrity, all cells must accurately duplicate their genetic material in order to provide intact and complete copies to each daughter cell following cell division. Successful inheritance of chromosomal information without changing even a single nucleotide requires accurate and robust DNA replication. This requires that cells tightly control replication initiation from the origin(s), processive elongation of the replisome, and the completion of DNA replication by resolving convergent replication forks ensuring that each sequence is duplicated without alteration. Unlike initiation and elongation, the process by which replication forks converge and are resolved into two discrete, inheritable DNA molecules is …

Wind Energy And Wind-Energy-Inspired Turbulent Wakes: Modulation Of Structures, Mechanisms And Flow Regimes, Elizabeth H. Camp

Dissertations and Theses

The interaction of turbulent wakes with one another and with the adjacent fluid directly impacts the generation of electricity in wind turbine arrays. Computational modeling is well suited to the repeated iterations of data generation that may be required to inform understanding of the function of wind farms as well as to develop control schemes for plant function. In order to perform such computational studies, a simplified model of the turbine must be implemented. One of the most computationally efficient parametrizations of the blade utilizes a stationary disk which has a prescribed drag and produces a wake. However, since accurate …

Maternal Angiotensinogen Genotype And Fetal Sex Impact Uteroplacental Function And The Developmental Origins Of Stress-Induced Hypertension, Jessica Faith Hebert

Dissertations and Theses

Fetal growth restriction (FGR) is a common and potentially life-threatening complication that affects 5-10% of human pregnancies. Maternal genetic predisposition and fetal male sex are known risk factors, but the underlying mechanisms are unknown. To study a known maternal genetic risk factor and the impact of fetal sex, we employed a published transgenic (TG) mouse model, which was designed to mimic a common human angiotensinogen (AGT) promoter variant associated with a 20% increase in circulating AGT levels. We hypothesized that TG dams would deliver growth restricted pups and that the underlying mechanism would be related to differences in maternal uterine …