Digital Commons Network^™

Workers Of The Word Unite!: The Powell's Books Union Organizing Campaign, 1998-2001, Ryan Thomas Wisnor

Dissertations and Theses

The labor movement's groundswell in the 1990s accompanied a period of intense competition and conglomeration within the retail book sector. Unexpectedly, the intersection of these two trends produced two dozen union drives across the country between 1996 and 2004 at large retail bookstores, including Borders and Barnes & Noble. Historians have yet to fully examine these retail organizing contests or recount their contributions to the labor movement and its history, including booksellers' pioneering use of the internet as an organizing tool. This thesis focuses on the aspirations, tactics, and contributions of booksellers in their struggles to unionize their workplaces, while …

The Downward Spiral: Postmodern Consciousness As Buddhist Metaphysics In The Dark Souls Video Game Series, Paolo Xavier Machado Menuez

Dissertations and Theses

This paper is about locating the meaning of a series of games known as the Dark Souls series in relation to contemporary social conditions in Japan. I argue that the game should be thought of as an emblem of the current cultural zeitgeist, in a similar way one might identify something like Jack Kerouac's The Dharma Bums as an emblem of the counter cultural 60s. I argue that the Dark Souls series expresses in allegorical form an anxiety about living in a time where the meaning of our everyday actions and even society itself has become significantly destabilized. It does …

Investigating The Role Of Small Noncoding Rnas In Vertebrate Anoxia Tolerance, Claire Louise Riggs

Dissertations and Theses

Very few vertebrates survive extended periods of time without oxygen. Entry into metabolic depression is central to surviving anoxia, which is supported by overall suppression of protein synthesis, yet requires increased expression of specific proteins. Studying the rapid and complex regulation of gene expression associated with survival of anoxia may uncover new mechanisms of cellular biology and transform our understanding of cells, as well as inform prevention and treatment of heart attack and stroke in humans. Small non-coding RNAs (sncRNAs) have emerged as regulators of gene expression that can be rapidly employed, can target individual genes or suites of genes, …

Microstructure And Mechanical Properties Of Additive Manufacturing Titanium Alloys After Thermal Processing, Ahmet Alptug Tanrikulu

Dissertations and Theses

Titanium alloys are widely used for aerospace and biomaterial applications since their high specific strength, and high corrosion resistivity. Besides these properties, titanium is an excellent biocompatible material widely used for internal body implants. Because the products have complex geometries in both applications, Additive Manufacturing (AM) methods have been recently applied for production. AM methods can process a direct 3-D shape of the final product, decrease total production time and cost. However, high residual stress of the final product limits the application of AM components, especially the ones that are exposed to cyclic loading. In the present study, the initial …

Responsible Pet Ownership: Dog Parks And Demographic Change In Portland, Oregon, Matthew Harris

Dissertations and Theses

Dog parks are the fastest growing type of park in U.S. cities; however, their increasing popularity has been met with increasing criticism of pets in public space. Dogs have shown to be a deep source of neighborhood conflict, and the provision of dog parks, or off-leash areas, is a seemingly intractable controversy for city officials. In 2003, Portland, Oregon established a network of 33 off-leash areas which remains the second largest both in count and per capita in the country. The purpose of my research is to understand the public debate over off leash dogs during the establishment of Portland's …

Living Between Worlds: Arrival And Adjustment Experiences Of The Somali Community In Portland, Oregon, Neil A. Panchmatia

Dissertations and Theses

Since the early 1990s Oregon has witnessed an economic and politically based influx of immigrants and refugees. Most refugees resettled in Oregon initially settled in the greater Portland metro area, and Portland currently ranks eleventh among cities around the country that resettle international refugees. This research focuses on the reception and resettlement experiences of one sub-group of refugees and immigrants: those from Somalia. In the Portland area, Somalis are a largely marginalized social group. They live on the peripheries of society and are often segregated (physically as well as culturally) in what is historically a racially and culturally homogenous state. …

Translation And Transformation: Uncovering The Source Of Alchemy’S Association With Magic Through A Study Of Its Translation Into Latin In The High Medieval Period, Morgan Taylor Greer

University Honors Theses

Alchemy is one of the longest lived ideas and practices in intellectual history and one of the most habitually misunderstood. Until the 1950's historians of science considered alchemy to be pseudoscience or a facet of magic. Since then historians of alchemy have produced a considerable body of work that is mostly concerned with making corrections and establishing the scientific character of alchemy. Alchemists made significant contributions to chemistry, theology, and medicine. Alchemy itself influenced art, literature, and pop culture. The current literature on alchemy lacks one component, a study of the source of alchemy’s association with magic and relegation to …

Structural Behavior Of Lap Shear Connections With Thermally Insulating Filler Plates, Salih Qasim Mahmood

Dissertations and Theses

This research consists of experimental load tests and numerical simulations of structural steel connections with various filler materials to study the effect of non-steel fillers on the connection strength. Non-steel fillers are used in the steel connections to provide thermal insulation by reducing thermal bridging. Eight specimens having steel and polypropylene filler plates of various thicknesses were tested in the laboratory. The collected data were compared to a Finite Element Analysis (FEA) using ABAQUS to validate the numerical results. After validation, three parametric studies were conducted using ABAQUS to provide insight into general behavior of connections with a variety of …

Exploring The Determinants Of Vulnerable Road Users' Crash Severity In State Roads, Àlvaro Alfonso Caviedes Cómbita

Dissertations and Theses

Pedestrians and bicyclists are the most vulnerable road users and suffer the most severe consequences when crashes take place. An extensive literature is available for crash severity in terms of driver safety, but fewer studies have explored non-motorized users' crash severity. Furthermore, most research efforts have examined pedestrian and bicyclist crash severity in urban areas. This study focuses on state roads (mostly outside major urban areas) and aims to identify contributing risk factors of fatal and severe crashes involving pedestrians and bicyclists in state roads. Two ordinal regression models were developed (one for pedestrian and the other for bicyclist crashes) …

The Impact Of Religious Diversity Management Strategies On Employee Attitudes, Moises E. Rios Jr.

University Honors Theses

The following research article utilizes the four frameworks (faith-avoiding, faith-based, faith-safe, faith-friendly) discussed by previous researchers Miller and Ewest (2015) in order to evaluate the effects of religious diversity management strategies on varying employee attitudes. An evaluation of the previous research in the field of religion and its effects on management strategies with a basis in title VII laws is also addressed. Based on a sample of 300 participants, significant results in the frameworks and their corresponding variables were found. Of the four frameworks utilized the faith-friendly framework was found to be by far the most favored of all regardless …

Designing In-Headset Authoring Tools For Virtual Reality Video, Cuong Nguyen

Dissertations and Theses

Virtual Reality (VR) video is emerging as a new art form. Viewing VR video requires wearing the VR headset to fully experience the immersive surrounding of the content. However, the novel viewing experience of VR video creates new challenges and requirements for conventional video authoring tools, which were designed mainly for working with normal video on a desktop display. Designing effective authoring tools for VR video requires intuitive video interfaces specific to VR.

This dissertation develops new workflows and systems that enable filmmakers to create and improve VR video while fully immersed in a VR headset. We introduce a series …

Sleep And Young Children's Development Of Self-Regulation And Academic Skills, Emily Michelle Weiss

Dissertations and Theses

School readiness incorporates children's academic abilities and their ability to self-regulate in the classroom. Prior research shows that sleep is related to children's development of these skills, although the mechanisms through which sleep affects school readiness are not well understood. Research also indicates that economically disadvantaged children and children of color may have poorer academic and regulatory skills at school entry and may sleep less and sleep less well on a regular basis.

The current study explores the role of sleep quantity and quality in young children's development of two skills critical for school success: self-regulation and academic abilities. This …

Technology Planning For Aligning Emerging Business Models And Regulatory Structures: The Case Of Electric Vehicle Charging And The Smart Grid, Kelly R. Cowan

Dissertations and Theses

Smart grid has been described as the Energy Internet: Where Energy Technology meets Information Technology. The incorporation of such technology into vast existing utility infrastructures offers many advantages, including possibilities for new smart appliances, energy management systems, better integration of renewable energy, value added services, and new business models, both for supply- and demand-side management. Smart grid also replaces aging utility technologies that are becoming increasingly unreliable, as the average ages for many critical components in utility systems now exceed their original design lives. However, while smart grid offers the promise of revolutionizing utility delivery systems, many questions remain about …

Utilizing High-Resolution Archived Transit Data To Study Before-And-After Travel-Speed And Travel-Time Conditions, Travis Bradley Glick

Dissertations and Theses

Travel times, operating speeds, and service reliability influence costs and service attractiveness. This paper outlines an approach to quantify how these metrics change after a modification of roadway design or transit routes using archived transit data. The Tri-County Metropolitan Transportation District of Oregon (TriMet), Portland's public transportation provider, archives automatic vehicle location (AVL) data for all buses as part of their bus dispatch system (BDS). This research combines three types of AVL data (stop event, stop disturbance, and high-resolution) to create a detailed account of transit behavior; this probe data gives insights into the behavior of transit as well as …

Non-Native Mangroves (Rhizophora Mangle) Of Moloka'i, Hawai'i: A Socio-Ecological Analysis, Casey Lynette Lewis

Dissertations and Theses

The formation of novel ecosystems by non-native species poses management challenges that are both socially and ecologically complex. This complexity necessitates consideration of both ecological dynamics and social attitudes and perceptions. Red mangrove propagules were introduced to Moloka'i, Hawaii in 1902 to mitigate the effects of soil erosion and they have since spread along the coast and to adjacent islands creating novel habitat. Non-native mangroves in Hawai'i present a unique case study to examine diverse social attitudes and perceptions resulting from a long history of land cover transformations on the Hawaiian Islands, socio-cultural diversity of involved stakeholders, and the potential …

Copper Nanowires Synthesis And Self-Assembly For Interconnect Applications, Srikar Rao Darmakkolla

Dissertations and Theses

One-dimensional (1D) nanomaterial self-assembly offers an excellent approach to the fabrication of highly complex nanodevices. Despite considerable effort and research, precisely controlling the orientation and positioning of nanowires (NWs) on a large-scale area and assembling into a functional device is still a state of the art problem. This thesis focuses on the dimensionally controlled copper nanowires (Cu NWs) synthesis, and magnetic field assisted self-assembly of cupronickel nanowires (Cu/Ni NWs) into interconnect structures on a carbon doped silicon dioxide (CDO) wafer.

CDO is a low dielectric constant (k) material used for copper interconnects in multilayered complex integrated circuits (ICs). …

Investigation Of Aerosol Optical And Chemical Properties Using Humidity Controlled Cavity Ring-Down Spectroscopy, Xijing Zhu

Dissertations and Theses

Scientists have been observing a change in the climate since the beginning of the 20^th century that cannot be attributed to any of the natural influences of the past. Natural and anthropogenic substances and processes perturb the Earth's energy budget, contributing to climate change. In particular, aerosols (particles suspended in air) have long been recognized to be important in processes throughout the atmosphere that affect climate. They directly influence the radiative balance of the Earth's atmosphere, affect cloud formation and properties, and are also key air pollutants that contribute to a variety of respiratory and cardiovascular diseases. Despite their …

Physics Based Approach For Seafloor Classification, Phu Duy Nguyen

Dissertations and Theses

The seafloor properties are of high importance for many applications such as marine biology, oil and gas exploration, laying cables, dredging operations and off-shore construction. Several approaches exist to classify the properties of the seabed. These include taking direct samples of the seabed (e.g., coring), however, these methods are costly and slow. Underwater acoustic remote sensing techniques are of interest because they are lower cost and faster. The information about the seabed properties can be extracted by studying the energy of single beam echo sounders (SBES). This can be done by either phenomenological or numerical methods [1], [2]. This research …

Two-Photon Excitation, Fluorescence Microscopy, And Quantitative Measurement Of Two-Photon Absorption Cross Sections, Fredrick Michael Dearmond

Dissertations and Theses

As optical microscopy techniques continue to improve, most notably the development of super-resolution optical microscopy which garnered the Nobel Prize in Chemistry in 2014, renewed emphasis has been placed on the development and use of fluorescence microscopy techniques. Of particular note is a renewed interest in multiphoton excitation due to a number of inherent properties of the technique including simplified optical filtering, increased sample penetration, and inherently confocal operation. With this renewed interest in multiphoton fluorescence microscopy, comes an increased demand for robust non-linear fluorescent markers, and characterization of the associated tool set.

These factors have led to an experimental …

A Phenomenological Study Of The Lived Experiences Of Parents Of Young Children With Autism Receiving Special Education Services, Donna Marie Barrow

Dissertations and Theses

Over the past two decades reported rates of autism have steadily risen. The current incidence is 1 in 68 children. While autism can be reliably diagnosed at 18 months in most children with the condition, specialized autism treatment rarely begins before a child's third or fourth birthday. As screening and diagnosis procedures improve so does the need for effective early interventions for autism. Researchers and professionals have expressed a growing concern over the need for effective early interventions for infants and toddlers with autism. At the same time, there is a dearth of qualitative research exploring the needs and experiences …

Transcriptomic Regulation Of Alternative Phenotypic Trajectories In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Amie L. Romney

Dissertations and Theses

The Annual Killifish, Austrofundulus limnaeus, survives the seasonal drying of their pond habitat in the form of embryos entering diapause midway through development. The diapause trajectory is one of two developmental phenotypes. Alternatively, individuals can "escape" entry into diapause and develop continuously until hatching. The alternative phenotypes of A. limnaeus are a form of developmental plasticity that provides this species with a physiological adaption for surviving stressful environments. The developmental trajectory of an embryo is not distinguishable morphologically upon fertilization and phenotype is believed to be influenced by maternal provisioning within the egg based on observations of offspring phenotype …

Multilingualism And Multiculturalism: Opinions From Spanish-Speaking English Learners From Mexico, Central America, And South America, Cailey Catherine Moe

Dissertations and Theses

Within the population of adult English-language learners in the United States, the largest portion is comprised of Spanish speakers from Mexico and Central and South America. At the same time, Spanish is the second-most commonly spoken language in the U.S., and an increasing presence in U.S. media and culture. This puts English learners from this demographic in a unique position with respect to language and culture acquisition and the experience of working towards their goals within U.S. society at large.

The purpose of this study is to explore motivations and beliefs about language and culture held by a small number …

Multi-Dimensional Drought Risk Assessment Based On Socio-Economic Vulnerabilities And Hydro-Climatological Factors, Ali Ahmadalipour

Dissertations and Theses

Drought is among the costliest natural hazards developing slowly and affecting large areas, which imposes severe consequences on society and economy. Anthropogenic climate change is expected to exacerbate drought in various regions of the globe, making its associated socioeconomic impacts more severe. Such impacts are of higher concern in Africa, which is mainly characterized by arid climate and lacking infrastructure as well as social development. Furthermore, the continent is expected to experience vast population growth, which will make it more vulnerable to the adverse effects of drought. This study provides the first comprehensive multi-dimensional assessment of drought risk across the …

The Use Of Evidentials In Hearsay Contexts In Japanese And English, Tomomi Matsumura

Dissertations and Theses

Evidentials are one of the language codes that convey the speaker's beliefs in terms of the degree of reliability of information and how the speaker obtained information (Chafe, 1986; Ishida, 2006; McCready and Ogata, 2007). Evidentials play an important role in communication since they also function to show the speaker's attitude toward the interlocutors by making a sentence softer (Trent 1998). In his theory of territory of information, Kamio (1990, 1997, 2002) proposed that pragmatic rules of evidentials are different in Japanese than in English. Ishida (2006) studied these differences and argued that learners of Japanese (JF learners) face difficulties …

Evaluating Student Growth In High School Science Education Through The Lens Of Science Identity, Vanessa Tran

University Honors Theses

The Physics First sequence has been known to increase competence and test scores of students, but how is science identity developed through Physics First? Particularly, this study compares the differences between males and females to better understand if competence makes a difference in how science identity develops through Physics First. The Colorado Learning Attitudes about Science Survey (CLASS) is utilized to understand how science attitudes may reflect science identity. In focusing on the self-perceived aspect of science identity, real-world connections and self-efficacy categories in which science identity are evaluated. The study found significant negative shifts in real world connection attitudes …

The Revolution Will Not Be Politicized: Political Expression In The Manga Adaptations Of KanikōSen, Benjamin Robert Burton

Dissertations and Theses

Kobayashi Takiji's (1903-1933) Kanikōsen (The Crab Cannery Ship, 1929), the outstanding work from the proletarian literary movement, experienced an influx of new adaptations into various mediums during the years that preceded and followed the "Kanikōsen boom" of 2008. This thesis focuses on two manga adaptations that provide readers with starkly different takes on the original story. Using theories by Scott McCloud and Azuma Hiroki, I first attempt to draw parallels between the form of manga and that of the novel. Then, I examine the manner in which the most explicitly political content of the novel is adapted …

Intimate Partner Violence Impact Panels For Batterer Intervention: A Mixed-Methods Evaluation Of A Restorative Justice Process, Kate Louise Sackett

Dissertations and Theses

Intimate partner violence (IPV) is an extremely prevalent and concerning social issue, with limited current intervention and prevention strategies. Batterer intervention programs (BIPs) have demonstrated some small effects of programs in reducing offender recidivism, however there is a growing understanding that not all offenders respond similarly to batterer intervention and the problem of IPV persists. Restorative justice programs including impact panels may be an important addition to BIPs, but research is extremely limited on impact panel effectiveness and whether panels are appropriate for IPV or pose additional safety risks to survivors. The current study consists of a naturalistic mixed-methods evaluation …

Analysis Of The Acid-Base Balance Of Mainstream Tobacco Smoke And Its Effect On The Gas/Particle Partitioning Of Nicotine, Amy Kathleen Devita-Mcbride

Dissertations and Theses

Tobacco smoke particulate matter (PM) is a complex mixture of condensed organic compounds, with about 5 to 10% water. Its general properties are similar in some respects to that of atmospheric organic aerosol PM and thus provides a useful surrogate when studying atmospheric PM. Due to its ability to undergo acid-base chemistry, nicotine is of particular interest in the tobacco smoke system. The gas/particle partitioning of nicotine depends on the protonation state of nicotine in the particles, so the distribution of nicotine between these phases provides a means of understanding the acid-base balance in the tobacco smoke system. The goal …

Can A Three-Day Training Focusing On The Nature Of Science And Science Practices As They Relate To Mind In The Making Make A Difference In Preschool Teachers' Self-Efficacy Engaging In Science Education?, Colleen Meacham

Dissertations and Theses

As technology and our world understanding develop, we will need citizens who are able to ask and answer questions that have not been thought of yet. Currently, high school and college graduates entering the workforce demonstrate a gap in their ability to develop unique solutions and fill the current technology-driven jobs. To address this gap, science needs to be prioritized early in children's lives. The focus of this research was to analyze a science training program that would help pre-school teachers better understand Mind in the Making life skills, the nature of science, science practices, and improve their self-efficacy integrating …

Hydrostratigraphy Of Warren Bench And Surrounding Area, Columbia County, Oregon, Eli Thomas Ahern

University Honors Theses

Areas of Columbia County in northwest Oregon, particularly along U.S. Route 30 directly north of the Portland Metro region, are projected to see significant increases in population. However, development in areas not currently supplied by municipalities drawing water from the Columbia River could be limited by availability of suitable water resources. This is a concern for the area immediately west and upslope from Highway 30 between the cities of Scappoose and Saint Helens, a relatively flat area locally known as the "Warren Bench" that seems otherwise well suited for development. Groundwater resources there, and indeed in most areas of the …