During the past year the rapid increase in the cost of copper and aluminum has led operating companies to investigate the feasibility of using iron and steel conductors for transmission and distribution purposes where small blocks of power are to be served. This Thesis gives the results of tests on...
The curriculum of technical degrees at higher education institutions in the United States needs to continuously adapt to ever changing technologies. One way to accomplish this is to adopt a more dynamic approach that separates the practical and theoretical components of the university education, and where the student concentrates on...
Nutrients play a large role in sustaining the symbiotic relationship between the algae and host sea anemone. The endosymbiotic algae provides the host with fixed nitrogen, sugars, and inorganic food sources, while the host provides the algae with shelter and nitrogenous waste. If the anemone does not receive the proper...
Female dairy cattle are particularly prone to infertility/subfertility with pregnancy rates ranging as low as 27% to a high 40%. On average it takes more than one breeding/insemination event for dairy cattle to become pregnant. This results in a loss of the number of calves a female would have per...
Infertility is an issue affecting millions of women across the globe, yet the causes are not fully understood, and treatment options are often ineffective. The evaluation of reproductive hormones has been a common tool used by fertility clinics as a way to predict the ovarian response to treatment and gain...
From my personal experiences, I’ve noticed that Latinx students and families are most receptive to college-related information communicated as anecdotes. Latinx students are among the most poorly represented demographic at universities nationwide, which I believe can be mitigated through calculated efforts to increase collegiate literacy and understanding. This project is...
Phycocyanin, a photosynthetic pigment-protein complex produced by cyanobacteria, has critical value in the medical field at high purity. Costs associated with the extraction of this pigment are high, emphasizing the importance of optimal growth conditions. The aim of this study was to investigate potential commercial producers of phycocyanin by evaluating...
Through the creation of a children’s book, this project aims to educate children and adults about the act of banning books in the United States. This non-fiction picture book targets readers between four and ten years old. Research on the history of book banning and questions about why it happens...
This research aims to understand the effects that the COVID-19 pandemic had on the workplace, with an emphasis on the design of the physical space. The research uses primarily qualitative data from relevant literature, survey data, and interviews conducted with professionals in the field. The results show that hybrid working...
From my personal experiences, I’ve noticed that Latinx students and families are most receptive to college-related information communicated as anecdotes. Latinx students are among the most poorly represented demographic at universities nationwide, which I believe can be mitigated through calculated efforts to increase collegiate literacy and understanding. This project is...
This project analyzes how women have radically changed the world of western print in the 21st century. To conduct this analysis, I examine a series of oral history interviews that I conducted in 2020 with women printers on the West Coast and employ a critical feminist methodology to study the...
There is great value in understanding the impact that a doctor’s approach to care may have on the experience of the patient. This oral history adds to the body of knowledge that we have about osteopathic medicine and its providers- DOs. It captures real, lived narratives of DOs in Oregon,...
Use of secondary metabolites in legumes and herbs as forage for dairy cattle is tested through analysis of blood parameters including beta-hydroxybutyrate (BHBA), cholesterol, urea, creatinine, haptoglobin, bilirubin, thiol groups and advanced oxidation protein products (AOPP). The pasture treatments were grass-based (‘Perun’ festulolium (X Festulolium braunii), ‘Rustler’ tall fescue (Festuca...
This full research paper explores two factors of increasing importance for first-year university engineering curricula: sustainability and diversity. Over the past fifteen years, many universities in the United States have adjusted their engineering programs in response to these two values expressed by industry, professional organizations, and the Accreditation Board for...
To evaluate and monitor insecticide resistance in onion thrips Thrips tabaci on onion (Allium cepa), we conducted a study using three field populations in the Treasure Valley of eastern Oregon and southwestern Idaho using the insecticides Lannate (methomyl) and Exirel (cyantraniliprole). To evaluate these two insecticides, biological assays were conducted...
Forest harvest practices can impact nutrient concentrations and stream temperatures, altering aquatic ecosystems. To better inform future sustainable forest resource management practices, quantifying the impact of current practices on water quality, particularly in headwater streams is important. In this study, I quantified monthly nitrate-nitrite (N) and orthophosphate (P) concentrations, 7-day...
This project will act as a resource in secondary schools and workplaces to help facilitate discussion of discrimination and racially motivated crimes against people in the AAPI community. Decades of oppression have led us to the current oppression of Asian Americans, notably showcased during the COVID-19 pandemic. This project highlights...
Oceanic plankton have both a large impact on our oceans health and atmo- spheric balance of Co2. The overall health of planktonic life is determined by many physical, chemical, and ecological factors, that drive taxonomic abundances and the relative amount of non-living biomass called detritus. Recent advances in microscopic imaging...
This thesis is one part of a study to compare and contrast 10 different proposals and finished projects for microgrids, and the associated community perceptions and response. It has been posited that microgrids have the potential to improve the resiliency and reliability of the electricity grid. In recent years, there...
The Colony Collapse Disorder (CCD) is an issue that is plaguing the globe, not only in the environment, but in the economy as well. Pollinators are essential to maintaining biodiversity and regulating livestock and human crop production. Yet, as time progresses, more pollinators are falling ill to agricultural chemicals, land...
The purpose of this inventory is to detail the state of environmental justice in the Mid- Willamette Valley in an up-to-date, centralized format. The inventory is based on information from various government sources, and a survey to gather first-person perspective to take a pulse of the wellbeing of our community....
Artificial collectives are useful for accomplishing tasks that require teamwork from multiple simple robots. Multiple robot and collective testbeds have been developed, yet none stay committed to leverage the local interactions, group size, and imperfect information assumptions that strengthen biological collectives. A review of the collective and multiple robot literature,...
The emergence of the 2019 coronavirus disease drove the rapid implementation of telehealth in maternal healthcare services in the United States (US) and globally. To protect providers and patients, states across the US incorporated telecommunications technology to substitute traditional in-person care for many aspects of perinatal care, for low- and...
Current natural product (NP) research is limited by its reliance on bioassay-guided fractionation to identify bioactive compounds in mixtures. Computational approaches may improve NP research by correlating mass spectra (MS) and nuclear magnetic resonance spectra (NMR) of bioactive mixtures to their bioactivity patterns. In this study, I use artificial neural...
In this work, a hybrid thermochemistry compressed air energy storage (CAES) system is investigated. Following a review on chemical reactions investigated for use in thermochemical energy storage (TCES) systems, from these chemistries, the conversion of magnesium carbonate, MgCO3, to magnesium oxide, MgO, and carbon dioxide, CO2, was further analyzed for...
Waste-heat-recovery Organic Rankine Cycle (ORC) systems use excess heat from industrial processes to produce electrical power. In many cases, the temperatures and mass flow rates of these excess-heat streams vary significantly over time, causing the ORC to often operate far from its design point. In this study, a control strategy...
In communities impacted by climate disasters, institutions largely determine the distribution of outcomes within a population. This research aims to examine the role of institutions in differential outcomes for displaced communities impacted by the 2020 Labor Day Wildfires in the Santiam Canyon and the Rogue Valley. Using semi-structured interviews of...
Honeybees are essential for agriculture and to sustain an ecosystem. There are two main types of bacterial diseases that affect honeybee colonies and brood: American Foulbrood and European Foulbrood. Both bacterial diseases can be treated with antibiotics approved for use in honeybees, however American Foulbrood is spore forming and cannot...
From 1914-1918 the world experienced humanity’s ultimate affirmation of malice on scales scant seen in the centuries before. The Great War wrought terror on an industrial scale, throwing men headlong unto landscapes rent low by fire and steel. Our collective unconscious image of the war does well to demonstrate this....
Loss of a limb can severely impact everyday way of life. Prosthetics provide a way to return functionality to the user and improve quality of life. However, most prosthetic systems currently available in the market lack sensory feedback making them comparatively more difficult to use resulting in prosthetic abandonment. Therefore,...
Self-regulation is the ability to regulate cognitions, emotions and behaviors and is important for success in school and adaptation in children. The amount and quality of sleep a child receives can influence their development and self-regulation. This study examines the relationship between children’s self-regulation in the fall of their kindergarten...
This paper is a literature review and analysis of the housing policy known as Housing First. Under said policy, homeless individuals are housed prior to requisite addiction and mental health services. The literature encompasses multiple randomized controlled trials, as well as broader observational studies on Permanent Supportive Housing. The studies...
This paper was written for GEOG 323 Climatology in the Spring of 2021, and was awarded the Writing in Culture Award within the College of Earth and Atmospheric Sciences.
Homosexual men in Nazi Germany experienced legal and social oppression that was rooted in both the cultural homophobia of Twentieth Century Germany and the existential homophobia of high-ranking Nazi officials. However, the Nazi Regime’s enforcement of homonegative policy was not unilateral, often ignoring the actions of members of Nazi-affiliated groups....
Freshwater flux from the Greenland Ice Sheet has the capacity to affect regional and global circulation as well as contribute to sea level rise. Outlet glaciers are an important part of this process. They provide pathways for inland glaciers and ice sheets to melt and drain into the surrounding oceans....
With the unique conceptual and mathematical backgrounds of every introductory physics student, there is no way to design a rigid curriculum that anticipates and meets every student’s needs. We can employ machine learning to explore the correlations that exist in the voluminous data from educational settings. That is, institutional, gradebook,...
Due to increasing populations, food production must increase significantly to be sustainable. The Internet of Things has been shown to have potential in the field of agriculture to make farming practices more efficient. However, for IoT to be properly integrated into agriculture, sensors must be applied within the field and...
Computational statistical mechanics leans heavily on the class of Markov Chain Monte Carlo Algorithms. Many such algorithms exist, and simulations can run for several weeks, making the selection of algorithms a difficult, but critical task. In this work, we introduce a benchmark system of two quadratic wells with an analytical...
This paper was written for feminist philosophy, and later minimally updated and chosen as a recipient of the Culture of Writing Award through the Writing Intensive Curriculum program.
Industrial waste heat composed of saturated liquid water can be redirected to charge a thermochemical energy storage (TCES) system. This energy can be stored long-term in the inherently energy-dense chemical bonds and used for space heating. Initial reactor scale cycling experiments were conducted in tandem with TCES material improvements. Hydration...
Polycyclic aromatic hydrocarbons (PAHs) are a known class of chemicals that are linked to a multitude of adverse health outcomes. There are over 1,500 of these chemicals across various families and subgroups. 16 of these PAHs, known as parent PAHs, are identified by the EPA for focused risk assessment within...
This studies the participants in Black Lives Matter-related communication on the social media app TikTok and the content they posted. Using grounded theory, the information gathered from Black Lives Matter TikTok videos was analyzed to determine the goals of the content creators, as well as the feasibility of community dialogue...
By studying gravitational waves, we can gain new insights into the merging events between massive objects such as black holes as well as neutron stars. Moreover, studying low-frequency waves allows us to observe merging events between supermassive black holes at the centers of galaxies, which in turn allows us to...
This research paper describes the impacts of a new programming class on first-year, non-CS engineering students. In the spring of 2021, the College of Engineering at Oregon State University piloted a new programming course that will be required of all engineering majors in the following academic years. We used the...
Breast cancer is a leading cause of cancer deaths among women, with an estimated 12.4% of American women diagnosed with this tumor type. Evidence suggests that exogenous disruptors can exert epigenetic changes leading to aberrant gene expression, shifting the cellular balance toward oncogenesis. While chemical pollutant exposure is well-studied, light...
Although it is the first drug approved for usage to treat amyotrophic lateral sclerosis (ALS), riluzole’s mechanism of action is unknown and its therapeutic quality is hampered by its relatively short window of effectiveness. P2X7 is a purine receptor found in astrocytes and other cells, which increases calcium concentrations within...
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) times periodic signals from pulsars as a method of detecting gravitational waves. NANOGrav detects waves emitted in the nanohertz frequency range, a range lower than those previously explored by other organizations. This allows for the study of rarely observed sources such...
Differential access to healthcare contributes to health disparities, and discrimination by language preferences may limit healthcare access to individuals for whom English is not their preferred language. This study looks at whether those who have different language preferences within the Pregnancy Risk Assessment Monitoring System (PRAMS ) survey reported different...
Glycomacropeptide (GMP) is a bioactive peptide found in the dairy product whey, along with whey protein isolate (WPI). Past studies have shown that digested GMP retains bioactivity in rodent guts. This study tested whether GMP or GMP-derived peptides or whey protein or whey protein-derived peptides inhibit pro-inflammatory cytokines. THP-1 cells...
From British Columbia to northern California, coastal giant salamanders (Dicamptodon tenebrosus) are a dominant vertebrate predator in headwater streams. Though widespread, salamander health and abundance levels differ greatly between locations, provoking the question as to what factors may influence this variation and whether habitat features or biotic variables play a...
One of the main ways that one can accurately gain knowledge of the experiences of students on a college campus is to talk to the students themselves. In this study, we used Photovoice, a participatory action approach, to help better understand the experiences of the students at Oregon State University...
Probiotics are defined as “live microorganisms that, when administered in adequate amounts, confer a health benefit to the host”. A wide variety of putative probiotics exist on the market; however, clinical evidence of their efficacy is lacking. Probiotics have been previously used in the treatment of metabolic diseases like type...
Fires that affect buildings can have disastrous impacts, including significant losses to people, property, and the environment. Understanding how fires can impact structures provides the foundation to prevent structural collapse in fire. It is critical that the effect of fire is studied to protect the safety and welfare of civilians....
Microtubules (MT) are highly dynamic cylindrical-like structures within cells whose growth is controlled by motor proteins, a class of biological machines that walk along the MT while simultaneously regulating MT growth. Here we are interested in the behavior of kinesin-14 motor proteins. Although processive behavior of kinesin-14 motors has been...
Estradiol (E2) plays a role in positive and negative feedback mechanisms of the hypothalamic-pituitary-gonadal (HPG) axis in female mammals. These mechanisms are regulated by two different populations of kisspeptin (KP)-producing neurons: anteroventral periventricular (AVPV) neurons, which are stimulated by E2, and arcuate (arc) neurons, which are inhibited by E2. AVPV...
Treated wood commodities disposed of in landfills contain chemicals that can migrate into the environment. Wood treatments such as ammoniacal copper zinc arsenate (ACZA) contain heavy metals which prevent the biological degradation of wood. These metals can migrate out of treated wood into soil or groundwater, posing environmental hazards. This...
Invasive plant species are a significant concern in Oregon’s forests, particularly in early-seral sites. Early-seral forests are generated by severe disturbances such as fire or timber harvest, and persist until canopy closure. They are vulnerable to invasion because they have abundant resources, and are important because they provide unique resources....
The phosphoprotein (P protein) in viruses of the Mononegavirales order is known to play an essential role in the completion of viral replication mechanisms. The P protein is involved in stabilizing the viral polymerase and nucleoprotein during RNA transcription and replication, regulating nascent RNA encapsidation by the nucleoprotein, and mediation...
Asians are a minority group that are scarcely represented throughout Hollywood and the film industry. Even when there is some type of inclusion, they are often subjected to stereotypes that have been perpetuated for decades. This contributes to shaping how Asian and Asian Americans are perceived, as well as the...
This is a two-part thesis. The first part is a generalization of vector calculus tools to Minkowski Space, a non-Euclidean 3-dimensional geometry that has a distance function that is not positive definite. We orient a cube in Minkowski Space using the generalized Stokes' Theorem to relate a divergence integral to...
About one third of Americans have metabolic syndrome, which is characterized by five risk factors related to blood pressure and triglyceride levels and could lead to diabetes and heart disease if left untreated. Watermelon has been shown to exhibit cardioprotective effects due to its high phytochemical content and may act...
Objective: This study presents an in-depth review of the correlations between peer learning methods and Academic success for students within the Oregon State University introductory PH 20X physics series. This study also sought to determine how, if any, demographics impacted the relationship between these correlates, and if the course structure...
Introduction: In the US, irritable bowel syndrome (IBS) affects 1 in 10 people. IBS is a chronic functional gastrointestinal disorder that consists of many gastrointestinal symptoms such as abdominal pain, changes in bowel movement, differences in the appearance of stool, diarrhea, constipation, increased gas, and mucus in stool. IBS causes...
The pulsed sphere benchmark problems are a set of physical experiments that have been used to verify Monte Carlo codes and evaluate nuclear data. All Monte Carlo codes rely on benchmark experiments that test the features of the code to verify that the simulations are producing realistic results. In the...
This project uses a variety of 3D technologies to give a deeper understanding of what it was like to live through the events of World War II. It includes three unique scenes: a Parisian Alleyway, an Underground Air Raid Shelter, and the attic where Holocaust survivor Henry Friedman and his...
Fibromyalgia syndrome (FMS) is recognized for its difficulty to diagnose and subjective symptomatology. There is no known cure nor a recommended therapeutic diet to aid in the multidisciplinary treatment for FMS. A systematic review was conducted to investigate if diets can improve the pain symptoms of fibromyalgia. A total of...
Despite the prominence of LEDs in our society, we have limited knowledge pertaining to their long-term effects. These seemingly white LEDs have a large blue light component to them. Recent results have shown that Drosophila living in 12 hrs. of blue light and 12 hrs. of darkness live substantially shorter...
This paper seeks to assess the merits of “Vote With Your Dollar” (VWYD) strategies for consumer and investor activism as a model for changing corporate behavior. A novel framework was constructed to group VWYD strategies and campaigns under shared attributes. To assess one such group, the boycott, the research gathered...
The demands of the healthcare system on its employees are heavy and intense. Long working hours, high-stress environments, and emotionally exhausting situations can lead to burnout. This is particularly a constant concern in emergency medicine. Burnout has been associated with impacting well-being and performance. There is also an interest in...
Ken Kesey’s One Flew Over the Cuckoo’s Nest is one of the most widely read novels written by an Oregonian. A mute Native American, a boisterous Irish white man, and numerous African Americans working behind the scenes of the narrative all converge in this struggle for autonomy. Little to no...
Characterizing a mindset landscape within the physics classroom is crucial to portray the variation and context of mindset in the classroom. This paper will be looking at students enrolled in Oregon State University’s PH20x series, which is a series of three algebra-based introductory physics courses. This project is an exploratory...
Paper-based microfluidic assays, like the common pregnancy test, allow for rapid screening at the point- of-care at low cost and with no instrumentation. Fabric has many similar properties to paper, but is more flexible and durable, making it a promising option for use in a variety of diagnostic and screening...
Projects in forestry and civil engineering depend on accurate information, which is often acquired through remote sensing techniques. One of the remote sensing technologies that has gained importance in the last decade is light detection and ranging (lidar), which describes the surveyed area with 3D points, presented as point clouds....
When my mother’s mother sent her over to the new, western world, she sent her with a suitcase full of spices you couldn’t find at an American grocery store in the 90’s: tamarind and turmeric, coriander root and cumin. Ammu, my mother, had truly packed her entire life and everything...
For next-generation molten salt reactors, there is a need to be able to characterize the corrosion of the molten salts contained within them. One such tool that may be used to accomplish this is a dynamic ref- erence electrode, or DRE. Here, an aqueous dynamic reference electrode (aDRE) was developed,...
Thermoelectric generators (TEGs) have gained much popularity in the search for alternatives to clean sources to harvest energy. Given their capability to harness an electric potential given a temperature differential across their opposing faces, and the foreseeable prevalence of naturally and/or commonly occurring temperature gradients in multiple applications, TEGs are...
This thesis acts as an artist statement to accompany the series Rose Colored Glass, which is a collection of acrylic paints using mirrors as canvases. Part prose and part autobiography, Queer Tragedy isn’t the Whole Story follows my journey from institutionalization and assualt to healing. Each mirror has a story...
Women’s history is often not included in K-12 classes. However, women are an essential part of American history and should be better represented in the K-12 curricula and classrooms. The purpose of this thesis is to both acknowledge that women’s history is often missing in K-12 classrooms and to provide...
This study assessed suitability of annelid habitats under current baseflow conditions and evaluated the mobility of suitable annelid substrates under a 2-year peak flushing flow. Outputs from a 2020 Bureau of Reclamation SRH-2D model were combined with field measurements of annelid presence/absence and habitat variables including depth, velocity and d50,...
Ice-penetrating radar produces detailed images of the internal ice layers in a glacier. Because the layers form from each year's snowfall, the curving of the internal layers is a record of the climate conditions that the glacier experienced as it flowed throughout the millennia. The Hiawatha Glacier lies on top...
Electron behavior in semiconductor materials critically determines electronic applications. Previous research has shown carrier temperature higher than the lattice temperature of LEDs due to energy differences in the quantum well. Study of these findings requires a novel set-up to dig out weak signal in a thermal-noise filled environment; analytical methods...
Communication is an aspect of healthcare that affects healthcare providers and patients at each step of their medical journey. The purpose of this research is to identify the effects that language barriers cause between healthcare workers and patients and the patients’ families and how those effects are perceived by and...
Over 100 years separate the 1918 Influenza and COVID-19 pandemics, and a multitude of science, public health and communication advancements have emerged. With the COVID-19 pandemic still underway, recently reaching the one million death mark in the United States alone (CDC, 2020), researchers are searching for clues as to how...
This study examines healthcare policy preferences of Oregon State University students through the lens of Political Culture Theory, as pioneered by Mary Douglas and Aaron Wildavsky in the 1980’s. The primary goal of this study is to examine the impact of cultural traits as described by Political Culture Theory on...
The soil microbiome drives nutrient transformation in forest soils and plays a critical role in the carbon (C) cycle of these ecosystems. Wildfires cause significant disturbance to ecosystems and are known to alter C sources available to microbes in forest soils. Summer wildfires in the Pacific Northwest are of growing...
This thesis explores the differences in puppetted and teleoperation control of robotic hands, using the Asterisk test as a benchmark. Two hands were tested, including modified versions of the Model Q and Model Q developed by Yale's GRAB Lab. Small differences were observed between the puppetted and teleoperation control of...
This paper presents a method of implementing real-time apple detection for closed-loop control to approach apples for grabbing. The approach is to train two known real-time object detection networks–the Faster R-CNN and YOLOv5–on a novel dataset to verify that it is possible to achieve maximum average precision (mAP) above 50\%...
For over two years, an exceptionally contagious new disease known as Coronavirus Disease 2019 (COVID-19) has spread around the globe and killed millions. Organizations such as the World Health Organization and the United Nations have suggested that universal healthcare could have helped countries currently lacking such mitigate the severity of...
This paper seeks to provide a practical answer to the following question: why create a board of directors in a family business? To achieve this, it summarizes the existing research published in the field of family business governance that directly addresses the beneficial role of the board of directors in...
The goal of this project is to create a lightweight radioactive isotope identification program for an embedded system using the C programming language to perform isotope matching on a subset of isotopes. First, the physics behind radioactive spectra and their key features are explained. Next, the characteristics of the spectra...
Genetic sampling is used in many wildlife fields to gather data on populations or individuals. In noninvasive genetic sampling, animals do not need to be captured. DNA can be gathered from hair, scat, or other residue shed into the environment. However, this can result in degraded DNA, so it is...
This thesis aims to investigate the reasons for discordance in the physician-family relationship, to explore how to improve that relationship, and to develop a set of practices to help prevent conflicts. The research was done by analyzing research on surrogate decision making, conflicts surrounding end of life, and case studies....
The US industrial sector accounts for about one-third of the nation’s energy consumption and is predicted to grow twice as quickly as other sectors through 2050. International organizations such as the International Energy Agency project energy efficiency improvements will account for over 40% of greenhouse gas emissions reductions through 2040....
In a longitudinal study in Sweden, whether people who have been abused or neglected by their parents in childhood are more prone to violence and mental illness in adulthood. Therefore this paper focuses on the relationship between childhood abuse or neglect and adult violence.
Subjects were male (n = 199),...
The Vietnamese population that migrated to the United States is largely tied to South Vietnam. As the population settled, their strong opposition to communism has driven many in the community towards political alignment with the alt-right and even white nationalists. The proximity to these movements and their seeming tolerance of...
The nucleocapsid of SARS-CoV-2 is critical for viral genome packaging through binding to viral genomic RNA. Liquid-liquid phase separation, or LLPS, is the formation of microscopic, rapidly reversible, liquid-like immiscible droplets. There is increasing scientific evidence that LLPS underlies the formation of membraneless compartments within cells and that this process...
North American bird populations have declined throughout the past half century. The majority of studies quantifying these declines have focused on spring and summer breeding birds; not the season of scarcity, winter. We re-surveyed 7 large study plots in Douglas fir forests initially surveyed in winter during the late 1960s...
The Jovanovic lab at Oregon State University (OSU) is developing iCore, a versatile blood processing platform which leverages microfluidic process intensification via increased mass transfer efficiency and decreased device footprint with the goal of creating a portable, wearable device. One application of iCore is for the treatment of hyperferremia resulting...