Index Catalog // ScholarsArchive@OSU

With Liberty and Justice For All: An Examination of the Ethical Duties of Consciousness

Creator:: Jackson, C. Winifred
Abstract:: If we are conscious beings, what ethical implications might that have? Are there inherent ethical responsibilities in consciousness? If so, what are they? Here we explore the possibility of experience within artificial general intelligence as it relates directly to the essential question of ethical responsibilities implied by human consciousness. By...
Resource Type:: Other

What Disrupts Cycles of Poverty? Examining the Effect of Family Background and Educational Attainment on Receiving Public Assistance with Multivariate Regression

Creator:: Vargas, Patricia I.
Abstract:: Understanding poverty as a state of being poor with regard to concretely being unable to meet basic needs such as water, food, clothes, shelter, and essential services (e.g., sanitation, health, and education), its concerted study in the United States not only stands tandem with constitutionally upheld values such as equality...
Resource Type:: Presentation

VOC Emisions and Categorization in Axenic Growth Conditions by Phaeodactylum tricornutum

Creator:: Thompson, Douglas A.
Abstract:: Volatile organic compounds (VOCs) play an integral role in climate change and as a carbon source for organisms living in a marine environment. These compounds have many sources, but the impacts of biogenically produced VOCs is not fully known. Phaeodactylum tricornutum was studied under axenic ideal growth conditions to determine...
Resource Type:: Undergraduate Thesis

Variable Temperature Transport Measurements and Conduction Mechanisms of Crystalline and Amorphous Titanium Dioxide Thin Films

Creator:: Patterson, Acacia M.
Abstract:: The electrical properties of amorphous and crystalline titanium dioxide polymorphs are reported. Titanium dioxide is a widely used transparent semiconductor and it is a useful oxide model. Using variable temperature transport measurements of thin films, it was possible to establish the activation energy barrier for conduction. This was accomplished using...
Resource Type:: Undergraduate Thesis

Utilization of structure-activity-relationship for predicting chemical toxicity in primary human lung cells

Creator:: Galbreath, Amanda
Abstract:: There is a growing need to establish alternative approaches for assessing hazard from chemical exposure compared to the traditional method of animal testing. Approaches that relate chemical structure to biological activity are gaining acceptance in the field as in silico methods for characterizing and predicting chemical toxicity. In this study,...
Resource Type:: Undergraduate Thesis

Using the Langevin Equation to Verify a Single-Particle Brownian Motion Simulation

Creator:: Snyder, Brendan
Abstract:: Brownian motion is the movement of a particle in a fluid resulting from collisions with surrounding molecules. It has modern applications in simulating fluid dynamics and the motion of proteins in biophysics. Brownian motion simulations generally evolve the initial state by applying Newton’s second law to every particle. These simulations...
Resource Type:: Undergraduate Thesis

Underwater Camera Systems : A DIY design for field research in freshwater systems

Creator:: Zamarripa, Emily
Abstract:: The ability to observe species in their natural setting using remote cameras is an increasingly important tool for in-field research. Remote cameras for terrestrial studies are inexpensive and widely available, but there are few comparable options for researching aquatic habitats. For this study, a do it yourself (DIY) underwater camera...
Resource Type:: Presentation

Tumorigenic bacteria from blueberry stem galls are related to Rhizobium tumorigenes-like Agrobacteria found in Rhododendron crown gall in Germany

Creator:: Khalib, Nurul Ain
Abstract:: Blueberry stem galls in Pacific Northwest are often attributed to Agrobacterium tumefaciens. The disease also is associated with indole-3-acetic-acid (IAA) producing bacteria, as described on cranberry stem gall. Lack of studies makes it difficult to conclude whether these two types of bacteria could be the causal agent of stem gall...
Resource Type:: Undergraduate Thesis

Tracking the Changes: An Exploration of Ecological Succession in Rocky Intertidal Communities

Creator:: Anderson, Roy K., Bachhuber, Silke M., Poirson, Brittany N., and Menge, Bruce A.
Abstract:: The rocky shores of the US West Coast are home to diverse ecological communities made up of species that are uniquely adapted for survival at the harsh boundary between land and sea. Even so, physical or environmental stressors regularly kill swaths of animals on the rocks. This is called disturbance....
Resource Type:: Presentation

Toxicity Screening of Polycyclic Aromatic Hydrocarbons (PAHs) in Primary Human Bronchial Epithelial Cells

Creator:: Amador, Samantha B.
Abstract:: 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...
Resource Type:: Undergraduate Thesis

Towards Molybdenum Disulfide Exciton-Polaritons in Metallic Microcavities

Creator:: Embleton, Clark
Abstract:: Exciton-polaritons are a form of light-matter coupling that have potential applications as photonic transistors and logic gates. In order for a photonic transistor or logic gate to be integrated with room temperature fiber-optic technology, excitons-polaritons need to be stable at room temperature and compatible with the red and near-infrared wavelengths...
Resource Type:: Undergraduate Thesis

Time resolved terahertz spectroscopy of photocarrier dynamics in WSe2

Creator:: Johnson, Nathan
Abstract:: Semiconductors serve an integral role in our technologies today. However, with new advancements in ultra-fast electronics, we are approaching the fundamental speed limits of traditional silicon-based semiconductors. Silicon-based semiconductors typically exhibit photocarrier dynamics in nanosecond timescales. Transition metal dichalcogenides (TMDs) are 2D materials shown to exhibit photocarrier dynamics in picosecond...
Resource Type:: Undergraduate Thesis

The Two Wells System: A Benchmark for Monte Carlo Methods in Statistical Mechanics

Creator:: Sprueill, Henry
Abstract:: 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...
Resource Type:: Undergraduate Thesis

The Relationship Between Force Plate Derived Eccentric Rate of Force Development and ELEIKO Vmaxpro Derived Eccentric Motion Rate of Force Development

Creator:: McCarthy, Benjamin
Abstract:: Eccentric rate of force development (ECC RFD) is a measure of the rate at which muscles can generate decelerative forces. However, it has traditionally been measured while jumping on force plates, which are not easily accessible or easy to use in a practical setting. With technology advancements it may be...
Resource Type:: Masters Thesis

The interaction of bulk heterojunction donor/acceptor blends with polaritonic state creation in organic crystalline films

Creator:: Center, Reid
Abstract:: We explore the interactions between charge transfer exciton states (CTEs) and an optical microcavity by testing the effects that cavity resonance has on the CTEs and if CTEs can be coupled with a photon to create quasiparticles known as polaritons. Exciton polaritonics is becoming a booming area of research mainly...
Resource Type:: Undergraduate Thesis

The Impact of Housing First on Homeless Housing and Mental Health Outcomes

Creator:: Foster, Kevin H.
Abstract:: 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...
Resource Type:: Research Paper

The Heart Beat of the Megafloods

Creator:: Valdez Hernandez, Saray
Abstract:: Marine sediment core OC1706B-02J ( 46° 15.4178 N, 125° 42.4543 W, at water depth 2263m), was collected on the lower continental slope near the base of the Willapa Canyon. It is a rapidly accumulating site (~30cm/kyr) located near the thrust front of the Cascadia Subduction Zone. The site is also...
Resource Type:: Undergraduate Thesis

The Gut Microbiome Drives Benzo[a]pyrene's Impact on Zebrafish Behavioral Development

Creator:: Sieler, Michael J.
Abstract:: Benzo[a]pyrene (B[a]P) is a common environmental pollutant produced from the incomplete combustion of organic matter, such as fossil fuel emissions. In vertebrates, B[a]P exposure is associated with hyperactivity, though the underlying mechanisms driving this effect are undescribed. Mounting evidence indicates that the gut microbiome, which is the diverse community of...
Resource Type:: Undergraduate Thesis

The Geometry of the Penrose Diagram for Minkowski Spacetime

Creator:: Siebersma, Maxwell
Abstract:: Culture of Writing Award in Mathematics (2022)
Resource Type:: Technical Report

The Economic Path Dependency of Foreign Extraction Duration: Why Colonialism Still Matters

Creator:: Kemp, Duncan S.
Abstract:: Foreign occupation and extraction have arguably existed since the very emergence of interstate conflict millennia ago. Yet despite humanity’s vast experience on the topic, we know surprisingly little about its long-term economic consequences. It is generally accepted by most that the extraction of resources by a foreign power tends to...
Resource Type:: Research Paper

The Consistent Histories Approach to the Stern-Gerlach Experiment

Creator:: Wilson, Ian
Abstract:: Standard quantum mechanics makes foundational assumptions to describe the measurement process. Upon interaction with a “classical measurement apparatus”, a quantum system is subjected to postulated “state collapse” dynamics. We show that framing measurement around state collapse and ill-defined classical observers leads to interpretational issues, and artificially limits the scope of...
Resource Type:: Undergraduate Thesis

The Aesthetic Appreciation of Nature: A "Humanizing" Approach

Creator:: Foos, Jordan
Abstract:: PHL 360: Philosophy and the Arts
Resource Type:: Research Paper

Stomach Analysis of Top Aquatic Predators in a Headwater Stream Network

Creator:: Ain, Najma
Abstract:: Top predators play important roles in regulating communities and ecosystem processes in freshwater ecosystems. In the headwater stream network, it is crucial to understand the interspecific interaction between multiple predators. In Oregon forested ecosystems, Coastal Giant Salamander (Dicamptodon tenebrosus) and cutthroat trout (Oncorhynchus clarkii) are the top predators in many...
Resource Type:: Undergraduate Thesis

Spectroscopic Ellipsometry on Thin Films of TiO2: Comparing Cauchy and Cody-Loretnz Models in CompleteEASE

Creator:: Kreb, Joseph
Abstract:: Spectroscopic ellipsometry (SE) is used to characterize amorphous and crystalline thin films of TiO2. Amorphous precursor films of TiO2 are deposited by radio frequency magnetron sputtering on fused silica and silicon substrates. Annealing the amorphous precursor films induces them to crystallize into either pure or mixed phases of the three...
Resource Type:: Undergraduate Thesis

Spatial variability of heavy metals within a tree using the Othitricum lyellii moss biomonitor model

Creator:: Field, Gillette M.
Abstract:: The variability of heavy metal concentrations (Pb, Cd, Zn, and Cu) of the terrestrial moss Orthotrichum lyellii on single trees was evaluated at two sites in the Pacific Northwest, one relatively unpolluted and the other polluted. In addition, a reciprocal transplant of O. lyellii between the unpolluted and polluted sites...
Resource Type:: Undergraduate Thesis

Soil Fire Ecology: Assessing Wildfire Severity Impacts on Pacific Northwest Forest Soil Carbon

Creator:: Fleetwood, Shea
Abstract:: Pacific Northwest temperate rainforests are anticipated to experience increasingly frequent and severe wildfires in the foreseeable future due to climate change, increased fuel loads, and deforestation. Soil, underlying these forests, is the largest terrestrial carbon (“C”) reservoir. Fire disturbance influences soil C persistence, the timeframe and magnitude of which remain...
Resource Type:: Undergraduate Thesis

Simulating the Dynein Motor Protein: A Monte Carlo Approach to Achieve Coordinated Stepping

Creator:: Kiatvongcharoen, Jin
Abstract:: The motor protein dynein is responsible for cellular processes such as axonal transport and cell division by delivering vital information along the microtubule track. A failed delivery can cause severe damage to the cell’s functionality and lead to neurological diseases. Despite dynein’s rich history in cellular research, the mechanism of...
Resource Type:: Undergraduate Thesis

Simulating Fluids: Testing a New Grand Canonical Histogram Method on the Square-Well Fluid

Creator:: Vande Griend, Jacob W.
Abstract:: Monte Carlo methods are used to explore vapor-liquid phase transitions. However, current models are computationally expensive when identifying these phase transitions. Traditionally, Monte Carlo simulations are run across a range of temperatures at a fixed number of atoms/molecules. The Number Monte Carlo method (NMC), our proposed Monte Carlo method, runs...
Resource Type:: Undergraduate Thesis

Scattering Mechanisms and Transport Properties of Semiconductors at Low Temperatures

Creator:: Kakepoto, Rohal
Abstract:: The purpose of this project is to verify scattering mechanisms in semiconductors by measuring transport properties and producing data that reflects existing research. The Hall effect is utilized to measure the resistivity, mobility and charge carrier concentration of the semiconductors: indium tin oxide (ITO), p-type silicon, and n-type silicon. By...
Resource Type:: Undergraduate Thesis

Research & Development of a Mentorship Program for the Success of International Students at OSU COB

Creator:: Stone, Paige
Abstract:: A research project looking into the feasibility and impact of adding a mentorship program to improve the academic and professional success of international students in the Oregon State University College of Business.
Resource Type:: Presentation and Other

Reciprocal Moss Ornament Transplant for Heavy Metal Deposition Rate and Spatial Variability

Creator:: Field, Gillette M. and Shiel, Alyssa E.
Abstract:: Air pollution and pollution patterns have become a hot topic over the last several years. Many studies have been launched due to the increasing concern with air quality. As urban areas grow, atmospheric heavy metal pollution grows proportionally. Reducing atmospheric heavy metal pollution, and consequent health issues, requires monitoring and...
Resource Type:: Poster

Ready or Not: Measuring the Preparedness of Young Adolescents (18-26 years) for Natural Disasters in the Pacific Northwest

Creator:: Backen, Grace
Abstract:: Cascadia is the physiographic region defined by the active tectonics and attendant geo-hazards of the Cascadia Subduction Zone. In contrast to many other coastal environments in the U.S., geo-hazards along the Cascadia coast are dominated by a tectonic context on the Pacific rim “ring of fire.” Washington, Oregon, and California...
Resource Type:: Poster

Predicting the Percentage: Relating the Refractive Index to Effective Medium Theory in Combination Dielectric Films

Creator:: Farmer, Skylar
Abstract:: Transparent conductive oxides (TCO) are at the forefront of technology with their uses in touch screen phones and televisions, solar cells and more. Titanium dioxide and tin dioxide are two TCOs that have been studied in depth on their own, so to further explore these TCOs, this project focuses on...
Resource Type:: Undergraduate Thesis

Practical Mechanically Interlocked Molecules: A Model of Gas Adsorption in Metal OrganicFrameworks Harboring Rotaxane Molecular Shuttles

Creator:: Carney, Jonathan
Abstract:: Metal organic frameworks(MOFs) are a class of crystalline materials utilized in gas storage, chemicalsensing, and other engineering applications. Recently chemists have begun synthesizing MOFs withmoving parts in order to further these applications. A wide array of dynamic MOFs have been created andtheorized. Among them is the interlocking of a ring...
Resource Type:: Undergraduate Thesis

Polycystic Ovary Syndrome: Guinea Pigs as a Potential Model of Mild Hyperandrogenemia

Creator:: Barboza Sagrero, Juriana E. and Bishop, Cecily
Abstract:: Polycystic Ovary Syndrome (PCOS) is an idiopathic disorder prevalent in ~5-10% of reproductive-aged women. In PCOS women who become pregnant, many experience complications including increased susceptibility of having a miscarriage, high blood pressure, and gestational diabetes, among others. Additionally, exposure to PCOS may have transgenerational impacts: offspring may be at...
Resource Type:: Presentation

Photodimerization of Organic Semiconductors in the Strong Coupling Regime

Creator:: Puro, Richard
Abstract:: Organic semiconducting materials have emerged in the last few decades as viable alternatives to inorganics in broad applications from field effect transistors to LEDs to solar cells. Organics provide many benefits over inorganics such as flexibility, sustainability, and reduced cost. However, these materials are more susceptible to degradation in the...
Resource Type:: Undergraduate Thesis

PBDEs/Methylmercury and Immune Function in Non-Stranded Male California Sea Lions (Zalophus californianus) : A Literature Review

Creator:: Manon-Ferguson, Ameyalli I.
Abstract:: A literature review for a research project being done in partnership with the Oregon Department of Fish and Wildlife and the Columbia River Intertribal Fish Commission, which will look at non-breeding California sea lion males in the Columbia River Basin that have been preying on migratory salmon. This will be...
Resource Type:: Presentation

Overview of the Comparison of Commercial Pelagic Species Fisheries Management in Malaysia and Oregon, United States

Creator:: Ahmad, Amir
Abstract:: The United Nations Food and Agriculture Organization (FAO) in the State of World Fisheries and Aquaculture 2018, has observed that the trend of the world’s marine fish stocks has been overexploited, depleted, and has exhibited decreasing trend within the fraction of biologically sustainable levels. While these situations are an alarming...
Resource Type:: Undergraduate Thesis

Ovarian protein hormones as biomarkers of fertility in dairy cows – Is it an acceptable model to predict infertility in dairy breeds?

Creator:: Lopez, Ruben
Abstract:: 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...
Resource Type:: Undergraduate Thesis

Optoelectronic Properties of a Novel Fungi-derived Pigment

Creator:: Wiesner, Cameron
Abstract:: In industry, there is considerable interest in finding sustainable, renewable materials for use in electronic devices. Pigments derived from spalting fungi are of particular interest due to their longevity in diverse environmental conditions. The focus of my project was to characterizethe properties of a novel, fungi-derived pigment, and to discover...
Resource Type:: Undergraduate Thesis

Optical Modelling of Thin Films: Applying Effective Medium Theory to Mixtures of TiO₂ and SnO₂

Creator:: Wulf, Julian J.
Abstract:: This study used SCOUT optical modelling software to create models of the reflectance and transmittance spectra generated by mixtures of titanium dioxide (TiO2) and tin oxide (SnO2). These models enabled identification of how altering the ratio of a mixture changes the optical response. By being able to identify how altering...
Resource Type:: Undergraduate Thesis

New Zealand’s Subtropical North Island Climate

Creator:: Cockrell, Taylor
Abstract:: Research paper for GEOG323 (Climatology) class describing the effects of physiographic setting, climate elements related to energy, moisture, and pressure and corresponding results on New Zealand's North Island Climate. The paper analyzes major circulation modes, weather patterns and extremes, climate change, and the overall climate type of the region.
Resource Type:: Research Paper

My Connection to "The Mitchell Woods"

Creator:: Puls, Griffin Tye
Abstract:: This is the final version of an essay on a student's connection to the land as part of their Writing Intensive Course, Forest Engineering FE460 Forest Operations Regulations and Policy Issues. The theme for the essay is the student's choice, but must include the history of the piece of land,...
Resource Type:: Other

Monitoring Resistance in Onion Thrips to Insecticides, Lannate® and Exirel®, in the Treasure Valley of Eastern Oregon and Southwestern Idaho

Creator:: Sanchez, Kevin
Abstract:: 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...
Resource Type:: Undergraduate Thesis

Monitoring Onion Thrips Response to Insecticide Agri-Mek SC in the Treasure Valley of Eastern Oregon and Western Idaho

Creator:: Flores Elizondo, Dennet
Abstract:: Onion thrips (Thrips tabaci) are pests found in onion fields of the Treasure Valley, which is located in Eastern Oregon and Western Idaho. Thrips cause damage to this high value crop by feeding on the onion’s extracellular fluid, making photosynthesis more difficult to occur. The feeding from the thrips can...
Resource Type:: Undergraduate Thesis

Monitoring Insect Pests in Southern Oregon Hemp Farms

Creator:: Perez, Adriana
Resource Type:: Research Paper

Modeling optical reflection and electric field intensity in organic semiconductor microcavities

Creator:: Munk, Rebecca
Abstract:: Organic semiconductors are a promising alternative to the traditional inorganic semiconductors, such as silicon. Organics are solution-processable, low-cost, sustainable, and have interesting optoelectronic properties. One such property is the formation of exciton-polaritons, quantum quasi-particles formed by an electron-hole pair in the semiconductor and a photon. This process can be induced...
Resource Type:: Undergraduate Thesis

Methylmercury Toxicity in Larval Dragonflies: Predator Avoidance Behavior

Creator:: Morgan, Bailey A.
Abstract:: Widespread mercury contamination threatens aquatic ecosystem functions due to its capacity to bioaccumulate, biomagnify, and induce toxicity in food webs. Methylmercury (MeHg), the organic form of mercury, bioaccumulates more efficiently and tends to be more toxic than the inorganic form. One important impact of mercury exposure is inhibition of effective...
Resource Type:: Presentation

MatTek™ EpiIntestinal™ a 3D Small Intestine Epithelial Cell Culture Model For In Vitro Screening in Dietary Chemopreventive Agents

Creator:: Raymundo, Wilfrido E.
Abstract:: Testing the many potential chemoprevention agents from dietary sources in animal or human models is expensive and takes a long time. In vitro models can be useful for screening the right compounds to use in larger studies. We tested the MatTek™ EpiIntestinal™ small intestine epithelial 3D cell culture model for...
Resource Type:: Undergraduate Thesis

Mapping the OSU Undergraduate Experience: National Survey of Student Engagement

Creator:: Balasankar, Karthiyesan and Bernard, Alexandria
Abstract:: This report provides an overview of selected findings from the 2019 NSSE survey completed at OSU. It focuses on two particular subsets of the survey results: Engagement Indicators and High-Impact Practices. The report outlines the insights drawn from the survey to look at the undergraduate student experience at OSU.
Resource Type:: Technical Report

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