Digital Commons Network^™

Algorithms For The Calibration And Correction Of Texel Images Using Inertial Measurement Updates, Trevor C. Welch

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A 3D terrain map can be developed to survey the earth’s surface and provide scientists with a method of accurately modeling terrain. Some of the applications include agricultural surveys, disaster management, and object classification. In order to develop a 3D terrain map, a sensor must capture all of the data to create the map. This 3D mapping tool can be made by combining a sensor that take samples of points on the earth’s surface and combines that with a digital camera that takes an image and lays it across those samples of the earth.

In order to take data over …

Spatial And Temporal Patterns Of River Incision And Terrace Deposition In Response To Climate And Tectonics In Southern Taiwan, Dominique M. Shore

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Geologists often look at the Earth’s surface to understand the underlying processes that cause mountain formation. As tectonic forces drive uplift of Earth’s surface, processes of erosion transport sediment to lower elevations. Climate can play a large role in landscape formation as well as increased precipitation, accelerating rates of erosion. Rivers leave markers of landscape evolution through terrace landforms, former river floodplains that are left behind when rivers incise into a valley. To better understand landscape response to uplift, this research investigated the initial linkages between uplift, hillslope erosion (mass wasting) and river incision. At some point, it is thought …

Design Of Miniaturized Sweeping Langmuir Probe And Electric Field Probe For The Sport Mission, Nathan P. Tipton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Scintillation Prediction Observation Research Task (SPORT) is a joint United States of America and Brazil 6U CubeSat mission. The US is providing the science instruments and the spacecraft launch. Brazil is providing the spacecraft bus, integration, and operations. Utah State University will provide four instruments for the mission as part of the US contribution in a suite called the Space Weather Probes (SWP). These instruments are the Sweeping Langmuir Probe (SLP), the Electric Field Probe (EFP), and the Sweeping Impedance Probe (SIP). Higher frequency components of the SLP and EFP will be observed through a Wave Spectrometer (WS). These …

Application Of Computational Fluid Dynamics To Determine Gas Expansion Factors Of Differential Pressure Flow Meters, Patrick L. Campana

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to investigate if computer simulations could be used to accurately predict gas expansion in differential pressure flow meters. Differential pressure flow meters are used to measure the flow rate of pressurized liquids and gases through pipes. Computer simulations of liquid and gas flows were conducted for three distinct differential pressure flow meter geometries: Classical Venturis, Stand Concentric orifice plates, and wedge meters.

Gas flows were modeled as dry air using the assumption of a perfect gas. Expansion effects were modeled using the ideal gas law. Computer simulations of Classical Venturi and Standard Concentric orifice …

Investigations Of Substrate Reduction By Nitrogenase: Light Powered Substrate Reduction By A Cds:Femoco System And Understanding Dinitrogen Inhibition Of Electron Transfer, Hayden Kallas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen fixation is a key step of the nitrogen cycle which makes biologically inert N₂ gas available for organisms to use in the form of ammonia. Nitrogen fixing microorganisms all contain the same enzyme called nitrogenase which catalyzes the six electron transfers to N₂ required for conversion into ammonia. Nitrogenase is a two-component enzyme that contains a cofactor composed of iron and sulfur as well as heavier metals whose identity can be molybdenum, vanadium, or an additional iron atom depending on the variant. The two components of nitrogenase are the MFe protein and the Fe protein. The Fe …

Herennius Philo And The Dilemma Of Lexicography, Alec Smitten

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis seeks to explore De Diversis Verborum Significationibus, the surviving epitome of the lexicon of Herennius Philo of Byblos (ca. 64-148 CE). By placing Philo in the timeline of Greek lexica, his prescriptive style and desire for absolute correctness in speech stands out among other lexicographers, and raises this question: what is the purpose of a dictionary, to describe how words are used, or to define “correct” usage?

Visitor Perceptions And Resource Conditions Of Campsites In Two Coastal Alaskan National Parks, Shannon T. Wesstrom

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Increasing visitation in parks and protected areas presents managers with the challenge of providing quality visitor experiences while mitigating ecological impacts from recreation. Successful management strategies often suggest determining desired conditions for visitor experiences and ecological conditions to establish thresholds. These thresholds can then be compared to existing conditions in order to determine if changes in management strategies should be made. By integrating visitor survey results with ecological assessments, this research is a unique coastal Alaskan regional analysis of the three components of a management framework: 1. Establishes visitor determined thresholds of acceptability for crowding and coastal resource conditions in …

An Analysis Of Racial Disparities Affecting College Of Business Degree Completion At A University's Satellite Campuses, John S. Jaggi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research study provides campus-type specific insight into the graduation rates of students of color at a departmental (i.e., School of Business) level. With underrepresented student populations comprising up to a third of business school enrollment, there is institutional and departmental value in understanding how, and at what levels, undergraduate business students of color persist and graduate at satellite campuses.

Findings from this study could be used to inform institutional and departmental administrators and program managers on different strategies to foster not only a more diverse matriculation, but also to improve graduation outcomes for underrepresented student populations. Study results could …

Snake Mind, Wolf Body, Panther Courage: Jojo Rabbit As A Critique Of Hegemonic Masculinity, Christian W. Lippert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 2019, the movie Jojo Rabbit (Waititi, 2019) was released to theaters. Because the film uses comedy and satire to tell a story about Jojo, a young Nazi who has Hitler as an imaginary friend, it received mix reviews. This analysis focuses on how the movie sheds light on the negative influence of hegemonic masculinity. Hegemonic masculinity refers to the messages and actions that place men above women or types of masculinity above femininity and other masculinities. Jojo’s desire to be a Nazi is deeply connected to his desire to be man. This analysis examines how hegemonic masculinity a) can …

Achieving Hate Speech Detection In A Low Resource Setting, Peiyu Li

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Online social networks provide people with convenient platforms to communicate and share life moments. However, because of the anonymous property of these social media platforms, the cases of online hate speeches are increasing. Hate speech is defined by the Cambridge Dictionary as “public speech that expresses hate or encourages violence towards a person or group based on something such as race, religion, sex, or sexual orientation”. Online hate speech has caused serious negative effects to legitimate users, including mental or emotional stress, reputational damage, and fear for one’s safety. To protect legitimate online users, automatically hate speech detection techniques are …

The Effects Of Cannabinoids On Stress-Coping Behaviors And Neuroendocrinological Measures In Chronic Unpredictable Stress: A Preclinical Systematic Review And Meta-Analysis, Noa Reuveni

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It is unclear if cannabis helps individuals cope with life’s stressors or increases the likelihood of developing stress-related disorders such as depression. Chronic unpredictable stress is a validated model of depression that exposes rodents to a series of frequently-occurring, intermittent stressors over the course of a few weeks. This systematic review and meta-analysis summarizes existing research using rodents on the effects of cannabinoids on stress-coping behaviors and neuroendocrinological measurements in chronic unpredictable stress. Databases were systematically searched for articles that met inclusion criteria, and effect sizes between control chronic unpredictable stress groups and cannabinoid-treated chronic unpredictable stress groups were calculated. …

Seeding Rate, Herbicide, And Irrigation Effects On Spring-Seeded Oat-Alfalfa Companion Crops, Carson D. Roberts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Small grain companion crop seeding rate recommendations for alfalfa (Medicago sativa L.) establishment are dated and inconsistent, and how a small grain companion crop seeding rates should be adjusted at different moisture levels is unknown. A study was conducted to provide clarity about oat (Avena sativa L.) companion crop seeding rates that maximize weed suppression and forage yield and minimize the effect on alfalfa stand establishment. This experiment considered oat companion crop seeding rates at various irrigation levels. Companion crop treatments consisted of oats sown at 89, 45, 22, 10, and 0 (with and without herbicide) kg ha …

The Relationship Between Social Skills And Coping Drinking Motives: A Test Of The Social Skills Deficit Vulnerability Model, Jaimee A. Smart

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Because drinking alcohol to cope has many negative outcomes (e.g., alcohol use disorder, problematic drinking patterns, etc.), it is vital to understand what contributes to drinking to cope. Having adequate social skills and social support has been found to help overall mental health. As such, it was logical to reason that social skills and social support could also impact physical health. Specifically, social skills and social support were examined as potential ways to buffer coping drinking development. This study utilized information from 176 adults living in the United States to understand the role social skills and social support play in …

A Geoarchaeological Site Formation Model At Alm Shelter, Wyoming, Cayla Kennedy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alm Shelter, located in north-central Wyoming, is an archaeological site with a long history of human occupation. This study addresses new contextual information in the form of dated sediment deposits, analysis of sediment types, and a computer model to assist with identifying climate conditions that may have led to periods of significant change. Using the model, it is possible to estimate the timing of environmental shift as well as other events that may not be directly dateable. This information is then compared to other sites containing climate records to determine if conditions at Alm Shelter are connected with other locations …

Allyship Training Programs In Higher Education: Creating A Critical Curriculum Of Change, Macy Marin Keith

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Allies Training Programs (also known as Safe Space/Zone training) are found in many institutions of higher education. Usually provided by an LGBTQA+ or Gender and Sexuality Center staff, the goal is to prepare participants for an allyship role in hopes of promoting safe spaces on campus and decrease instances of queerphobia. This thesis examined current allies training programs to determine what content is being presented and compare to the latest critiques and definitions. After analysis it is determined that current allyship trainings are inadequately preparing higher education staff and faculty for an ally role. Using the results of this study …

Teaching Chinese As A Second Language: Exploring Teaching Methods, Identity Development, And Learner-Centered Education, Zhen Li

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This portfolio includes a collection of essays reflecting the writer’s beliefs about teaching and explorations of topics related to second language teaching, especially in the context of teaching Chinese as a foreign language. The first part of the portfolio consists of the writer’s teaching philosophy statement, professional environment, and reflections on her observations of other teachers’ classes. The second part consists of two papers focused on the interconnections between language and culture. The first explores refusal strategies in Chinese while the second addresses identity negotiation in Chinese Heritage Learners’ study abroad experiences. The third part is an annotated bibliography on …

Testing Methods Of Surficial Sinkhole Identification Using Remotely Sensed Data, Dane P. Brophy

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Nearly a quarter of all people rely on karst aquifers for drinking water. In the United States, the Safe Water Drinking Act requires a complete assessment of public water systems' vulnerabilities to contamination. As part of that assessment, watershed boundaries must be delineated, while recharge and supply locations identified. In the context of karst aquifers, surficial karst features, such as sinkholes, can act as a point source of direct recharge to karst aquifers and create vulnerabilities to critical drinking water sources. Historical methods of locating these features are inefficient and depend on basic field investigations, resulting in a clear need …

The Effects Of Bank Lobbying And Elections Surprises, Gregory Logan Tarbet

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This paper examines the stock market reaction to banks that lobby relative to banks that did not lobby in the period around the November 9, 2016, U.S. presidential election. Using three different methods of event studies to calculate the cumulative average return, we find that lobbying in banks has a meaningful relationship to an abnormal increase in those firm’s stock prices. Then we attempt to control for both the systemic importance and size of these institutions by performing cross-sectional regressions that include matched size, and the systemic nature of the banks. The results suggest that a heavily regulated industry such …

Exploring Teaching Language With Culture, Sixin Fu

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This portfolio contains the author's insights into teaching a second language, which she gained while in the Master of Second Language Teaching (MSLT) program at Utah State University (USU). It is organized in two major sections: teaching perspectives and research perspectives. The content reflects the author’s main focus and value on language teaching as a graduate instructor and student.

In the teaching perspectives section, the author shares the professional environment that she wants to work in, her teaching philosophy statement, and the professional development in language education through observing her colleagues’ teaching. In the research perspectives, two research papers and …

Pharmaceutical Stock Prices Around Medicare Part D Expansion, Spencer Powell

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

On January 1, 2006 Medicare part D expanded, giving prescription coverage to many Americans. This event offers an interesting question regarding market efficiency, specifically because Medicare expansion was introduced into congress as far back as 1999. Because Medicare part D affected pharmaceutical drug coverage, this study focuses specifically on securities in the pharmaceutical industry. Following an efficient market hypothesis, we would expect to see significant abnormal returns in the post event window, anticipating the legislations effect on demand within the industry. Results showed significant abnormal returns in post-event window, but not in the pre-event window. The returns in the post-event …

Taphonomy Of Late Jurassic (Tithonian) Morrison Formation Apatosaurus Sp. Vertebrae Found Associated With Teeth From Allosaurus Sp. And Ceratosaurus Sp., And Body Size Extrapolation From The Associated Theropod Teeth., Greg C. Agyan

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

An Apatosaurus sp. locality from Dinosaur National Monument designated DNM-15 was excavated in 1985, and associated with two Allosaurus teeth and one Ceratosaurus tooth that were near one of the caudal vertebrae. The Ceratosaurus tooth was buried between an overlying rib and that same caudal vertebra. The caudal vertebrae of the DNM-15 Apatosaurus were intact and articulated, but the anterior skeleton was mostly absent, with a row of articulated sacral vertebrae in close association with a femur. Two other Allosaurus teeth were reported near the preserved ilium of the Apatosaurus, but they could not be located in the collections. …

Teaching Chinese As A Second Language In A Supportive Student-Centered Environment, Linqi Peng

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This portfolio is a compilation that includes the author’s research, thoughts, and opinions while studying in the Master of Second Language Teaching (MSLT) program at Utah State University (USU). It represents the author’s reflections and perspectives as a MSLT graduate student and as a graduate instructor who taught Chinese as a Second Language courses to undergraduates at beginners’ levels.

Three sections are included in the portfolio. It begins with the author’s teaching perspectives, including professional environment, teaching philosophy statement, and professional development through teaching observations. In the second section, two research papers demonstrate her research interests in the practices of …

Low-Fidelity Method For Rapid Aerostructural Optimisation And Design-Space Exploration Of Planar Wings, Jeffrey D. Taylor, Doug F. Hunsaker

Mechanical and Aerospace Engineering Student Publications and Presentations

During early phases of wing design, analytic and low-fidelity methods are often used to identify promising design concepts. In many cases, solutions obtained using these methods provide intuition about the design space that is not easily obtained using higher-fidelity methods. This is especially true for aerostructural design. However, many analytic and low-fidelity aerostructural solutions are limited in application to wings with specific planforms and weight distributions. Here, a numerical method for minimising induced drag with structural constraints is presented that uses approximations that apply to unswept planar wings with arbitrary planforms and weight distributions. The method is applied to the …

Detection Of European Aspen (Populus Tremula L.) Based On An Unmanned Aerial Vehicle Approach In Boreal Forests, Anton Kuzmin, Lauri Korhonen, Sonja Kivinen, Pekka Hurskainen, Pasi Korpelainen, Topi Tanhuanpää, Matti Maltamo, Petteri Vihervaara, Timo Kumpula

Aspen Bibliography

European aspen (Populus tremula L.) is a keystone species for biodiversity of boreal forests. Large-diameter aspens maintain the diversity of hundreds of species, many of which are threatened in Fennoscandia. Due to a low economic value and relatively sparse and scattered occurrence of aspen in boreal forests, there is a lack of information of the spatial and temporal distribution of aspen, which hampers efficient planning and implementation of sustainable forest management practices and conservation efforts. Our objective was to assess identification of European aspen at the individual tree level in a southern boreal forest using high-resolution photogrammetric point cloud …

Let Me Write That Down: Tutoring Session Notes, Emma Lundgreen

Tutor's Column

This essay reviews the importance of tutor session notes. It examines different note-taking styles, the purpose behind each, and how those factors are correlated. It also investigates session notes as organizational narratives, wherein the appointment is recorded for the benefit of students, tutors, and administrators.

Scaffolding In Online Tutoring: Addressing The Issue Of Productivity, Nathan Franson

Tutor's Column

The expanding online tutoring format poses unique challenges when attempting to maximize communication and productivity in a 20–25-minute writing center session. Relatively recent literature has revealed that discontented students have reported in feedback surveys that their sessions felt unhelpful or fruitless. This situation has been termed: "non-productive non-directivity,” and it may be attributed to an over-reliance on open-ended questions. It is of interest to determine whether this is truly helping students in online settings. While tutoring roles have not changed, the impersonal nature of an online session requires a more perceptive approach to tutoring: recognizing that a student may need …

Praise As A Learned Behaviour, Rebekah Jensen

Tutor's Column

Writing Centers should teach tutors how to praise to create a better experience for students and tutors alike. Tutors are often encouraged to give praise in their comments and conversations with students, but are rarely instructed on how to do so effectively. This article examines the purpose of praise in tutoring, why it is important for tutors to learn how to praise, and what strategies may be used to teach praise to tutors.

Atmospheric Refraction Corrections In Ground-To-Satellite Optical Time Transfer, Benjamin K. Stuhl

Space Dynamics Laboratory Publications

Free-space optical time and frequency transfer techniques can synchronize fixed ground stations at the femtosecond level, over distances of tens of kilometers. However, optical time transfer will be required to span intercontinental distances in order to truly unlock the performance of optical frequency standards and support an eventual redefinition of the SI second. Fiber dispersion and Sagnac uncertainty severely limit the performance of long-range optical time transfer over fiber networks, so satellite-based free-space time transfer is a promising solution. In pursuit of ground-to-space optical time transfer, previous work has considered a number of systematic shifts and concluded that all of …

Improving Skills In Computer Methods: Introductory Toolkit To Python For Undergraduate Physics Majors, Erin O'Donnell, Melissa Rasmussen

Physics Capstone Projects

The computer-based curriculum for undergraduate physics students before 2019 struggled to stay current and applicable. When the course was created in the early 2000s, MathCad was used daily by many physicists. As computer’s and their computational abilities have grown exponentially, so have programming languages and applications. Now in the late 2010s/early 2020s, Excel, Python, and Mathematica are some of the most common computer appliques. To address this, we created toolkits to give undergraduate physicists the experience for future classes, careers, and graduate school. This paper focuses on the process for creating the Python toolkit and overall class setup. Run on …

Ion Beam-Treated Space Polymers: Long-Term Stability In Geo-Simulated Environments, Jacob Kleiman, Zelina Iskanderova, Leonid Krishtein, J. R. Dennison, Brian Wood, Anatoly Grigorievsky, Carl Best

Journal Articles

As part of a large program conducted between years 2010 and 2018, a number of ion beam surface treatments and proprietary coatings formed on advanced space polymers by direct ion beam deposition were developed at Integrity Testing Laboratory (ITL) Inc, in Canada. Thistechnology allowed producing surfaces with controlled surface resistivity in a wide range of charge dissipation values, with negligibly low additional RF losses and other important functional properties, that allowed using such treated materials and products in modern space antennae, solar arrays and other external applications on spacecrafts in GEO environment. This paper will present an overview of results …