Digital Commons Network^™

Analysis Of Current And Future Flood Hazard In The Sacramento-San Joaquin Delta, Nicholas L. Mcguire

Master's Theses

The primary motivation of this study is to estimate the current and future flood hazard throughout the Sacramento-San Joaquin Delta in the context of sea-level rise. I also analyzed the effects of storm surge and river flow on extreme events to better understand how these events originate and vary spatially and in time. To address this goal, I combined digital water level records (primarily 1983-present) with archival data collected by the California Department of Water Resources (1929-1983) to reevaluate flood hazard in the Delta and investigate the possible sensitivity of the region different sea-level rise projections. Available archival records from …

Ncaa Di Assistant Coaches' Understanding Of Mental Performance And Mental Health Services, Heather Hill

Master's Theses

The National Collegiate Athletic Association (NCAA) has acknowledged the importance of providing student-athletes with psychological services throughout their athletic careers (NCAA, n.d.). Two vital services for student-athletes are mental performance services that are focused on sport-related issues and mental health services that are centered around personal issues (Sudano & Miles, 2017). Previous literature around mental performance and mental health services has not distinguished between them, making it difficult to understand key stakeholders’ perceptions and knowledge of both mental performance and mental health services. Assistant coaches play an important role in NCAA athletic departments and spend substantial amounts of time connecting …

Synthesis And Analysis Of Short Antimicrobial Peptides: Rr, Rika Igr, And Hq, Kathleen Pierce

Master's Theses

A significant impending threat to the public health system is the rise of multidrug resistant bacteria. An attractive potential option to combat this is antimicrobial peptides (AMPs). AMPs are peptide chains with lengths that range from 10 to 70 amino acid residues that show antimicrobial activity. AMPs tend to have less toxicity than other antibiotic therapies, have a broader range of activity, and have a decreased resistance development by the target cells. Short AMPs are especially attractive due to their stability as well as their ability to penetrate cell membranes. With a wide range of possible AMPs available, further characterization …

Machine Learning And Software Solutions For Data Quality Assessment In Cern’S Atlas Experiment, Cary Randazzo

Master's Theses

The Large Hadron Collider (LHC) is home to multiple particle physics experiments designed to verify the standard model and push our understanding of the universe to its limits. The ATLAS detector is one of the large general-purpose experiments that make use of the LHC and generates a significant amount of data as part of its regular operations. Prior to physics analysis, this data is cleaned through a data assessment process which involves significant operator resources. With the evolution of the field of machine learning and anomaly detection, there is great opportunity to upgrade the ATLAS Data Quality Monitoring Framework to …

Age-Based Comparison Of The Motivations, Self-Efficacy, And Quality Of Life In Bariatric Surgery Candidates, Sheena K. Bling

Master's Theses

Overweight and obesity is a worldwide epidemic that is negatively impacting individuals’ health and quality of life. Much research has been conducted regarding the effects of diet and exercise for weight loss, with current research providing evidence in favor of bariatric surgery for severely obese adults and children. The purpose of this project is to understand participants motivating factors, anticipated post-surgery success and anticipated changes in physical, social and mental health. The objectives were to describe participants’ motivations for pursuing bariatric surgery, describe participants level of confidence with postsurgical diet implementation, and compare participants anticipated post-surgery changes in quality of …

Evaluating Traditional And Novel Modalities Of Self-Monitoring In Females With Low-Literacy & Obesity: A Feasibility Study, Anita H. Kelleher

Master's Theses

This study aimed to determine the feasibility of three distinct self-monitoring modalities employed as part of a weight-loss intervention among Spanish- and Mixtec-speaking women with low-no literacy who were overweight or obese (body mass index, BMI> 25). Primary outcomes assessed include self-monitoring adherence, weight, body composition, and diet quality. Participants (n=18) were recruited from the Cal Poly Women and Infants Mobile Health Unit, and contacted if they had a BMI> 25 and did not attend school beyond elementary level (6th grade). Upon enrollment, participants were asked to attend a weekly meeting at which the lifestyle intervention was delivered by a …

No Justice, No Peace: An Examination Of The Protestor Experience, Naya Russell-Coprich

Master's Theses

More than 95% of the protests that took place in the summer of 2020 were deemed peaceful. However, many of these protests ended with violent encounters with police officers (Major Cities Chiefs Association, 2020). The purpose of this research was to explore the experience of protestors in America. This study also sought to identify, if at all, the disparities present when deciding to use excessive force against protestors. The sample for this study included students from the University of Northern Colorado, who were 18 years of age or older, and have attended a protest in their lifetime. The final sample …

Examining Introductory Computer Science Student Cognition When Testing Software Under Different Test Adequacy Criteria, Austin Shin

Master's Theses

The ability to test software is invaluable in all areas of computer science, but it is often neglected in computer science curricula. Test adequacy criteria (TAC), tools that measure the effectiveness of a test suite, have been used as aids to improve software testing teaching practices, but little is known about how students respond to them. Studies have examined the cognitive processes of students programming and professional developers writing tests, but none have investigated how student testers test with TAC. If we are to improve how they are used in the classroom, we must start by understanding the different ways …

Topo-Climatic Effects Of Fuel Loading In Ponderosa Pine (Pinus Ponderosa) Forests Of The Colorado Rocky Mountains, Justin Yow

Master's Theses

A key restoration focus is the mitigation and prevention of intense wildfires. This is done using a regularly prescribed fire regime and forest thinning practices to reduce surface fuel loads. Prediction of fuel loads at the forest floor is pivotal when assessing the hazard level a forest fire may present. Scientists already have much data correlating fuel characteristics to fire effects and behavior. However, links between montane climate variability and relative effects on fuel load characteristics have not been extensively explored in the Front Range and southwestern Colorado. This study system was uniquely located along a North-South monsoonal gradient and …

The Role Of Speech-Language Pathologists In Trauma-Informed Practices: Feelings, Attitudes, And Reported Behaviors Of Colorado School Speech-Language Pathologists, Kallie Haritopoulos

Master's Theses

Research indicates that a majority of children in the United States will be exposed to at least one traumatic event before they turn 18, and some children experience multiple forms. Trauma can cause various adverse effects in physical, cognitive, linguistic, behavioral, social, and emotional functioning, which can affect educational performance and success. Despite the increased chance that children who have experience trauma will receive speech and language services, research surrounding trauma-informed practices predominantly focus on the role of general education teachers and mental health professionals. This qualitative study aimed to understand the feelings, attitudes, and reported behaviors of five Colorado …

Digital Pastoral, Rebecca Holifield

Master's Theses

Digital Pastoral is a collection of original poems and a creative nonfiction essay, accompanied by a critical introduction.

Alt-Right Of The_Donald And Authoritarian Communists On Reddit: Internet Memes To Build Community, Joshua Hendricks

Master's Theses

This project infuses Lacanian psychoanalysis further into the rhetorical study by exploring authoritarian discourses on Reddit. I analyze the alt-right community that found a home on the subreddit r/The_Donald and chart their discourse as it shaped from the quarantine to the establishment of an independent forum called TheDonald.win. I selected memes and the comments around them to build the analysis. The second aspect of this thesis examines authoritarian communist discourse on Reddit. The leftist community splintered when r/socialism banned a community member because the person made catgirl art. The ban sent shockwaves through the leftist community on Reddit and generated …

A Bioarchaeological Investigation Of The Courtney-Anderson Cemetery, Lauren Scott

Master's Theses

Located in Perry County, Mississippi, the Anderson Family Cemetery represents an abandoned turn-of-the-century Piney Woods cemetery. The cemetery is located on land once owned by the Courtney and Anderson families, who farmed the area until it was taken under eminent domain by the United States government in 1942. The purpose of this thesis is to present three osteobiographies created from human remains and material culture recovered from three graves excavated from within the cemetery in 2022 to explore the lifeways of rural Piney Woods families of Mississippi at the turn-of-the-century.

Among the graves explored, one did not contain evidence of …

Fabrication Of Lab-Scale Polymeric And Silicon Dioxide Nanoparticle-Enabled Thin Film Composite Reverse Osmosis Membranes For Potable Reuse Applications, Timothy J. Dinh

Master's Theses

Reverse osmosis (RO) is widely used for water reclamation and is one of the most feasible technologies for addressing water scarcity around the world. RO membrane fabrication procedures are continually being optimized and modified to enhance the treatment performance and efficacy of the RO process. A review of the existing literature published on membrane fabrication revealed that a detailed and reproducible methodology consistent among prior studies was not available. Therefore, the primary objective of this study was to utilize techniques from prior research to develop a reliable lab-scale membrane fabrication process for studying the potable reuse applications of TFC RO …

Strawberry Disease Management Improvement For Macrophomina Root Rot And Botrytis Fruit Rot, Yu-Chen Wang

Master's Theses

Strawberry production in California is limited by plant diseases such as Macrophomina root rot (caused by Macrophomina phaseolina) and Botrytis fruit rot (BFR) (caused by Botrytis cinerea). Current disease management strategies are compromised due to fumigant regulations or ineffective disease management practices. This thesis investigated methods to potentially improve the management of these two diseases.

Host plant resistance evaluations for Macrophomina root rot were conducted for the 2020-2021 and 2021-2022 growing seasons. Fifty-one strawberry genotypes were screened in two field experiments where plants were inoculated artificially with Macrophomina phaseolina in both seasons. A wide range of plant resistance …

Validation In Vietnam: Motivations And Experiences Of Vietnam Veterans Who Returned To Vietnam As Tourists, Brian Washam Ii

Master's Theses

The current historiography on the memory of the Vietnam War has primarily looked at how the collective memory of the war has been constructed through various factors. Scholars such as Jerry Lembcke, Patrick Hagopian, and Marita Sturken tend to examine monuments, film, and oral histories to establish a basis for how the memory of the Vietnam War was constructed and how these legacies from the war shaped the U.S. as a society going forward. Recently, scholars have begun looking more at the return trips of veterans to Vietnam as a source for understanding how veterans remembered their service.

By engaging …

Deep Learning For Detecting Trees In The Urban Environment From Lidar, Julian R. Rice

Master's Theses

Cataloguing and classifying trees in the urban environment is a crucial step in urban and environmental planning. However, manual collection and maintenance of this data is expensive and time-consuming. Algorithmic approaches that rely on remote sensing data have been developed for tree detection in forests, though they generally struggle in the more varied urban environment. This work proposes a novel method for the detection of trees in the urban environment that applies deep learning to remote sensing data. Specifically, we train a PointNet-based neural network to predict tree locations directly from LIDAR data augmented with multi-spectral imaging. We compare this …

Relationship Among Department Satisfaction, Training, And Police Behavior, Matthew Garvin

Master's Theses

The call for police reform has been sparked by incidents involving the shooting and killing of individuals by the police. Public and political scrutiny of police behavior and procedures has created a social identity of “Us Versus Them” mentality among police officers. Proactive policing strategies have diminished in response to the heightened scrutiny of police procedures and behavior, in turn, initiating a reduction in police protection and an increase in crime. While research has identified the importance of police presence, the literature does not yet answer questions regarding factors which influence police proactivity. To address the gap in understanding, this …

Evolving Deforestation Narratives In Practice: A Study Of The Un-Redd+ Readiness Programme In Nigeria, Stuart Clive Blackwell

Master's Theses

The UN-REDD+ Readiness Programme was conducted between 2009 and 2015. The REDD+ Programme in Nigeria began once the readiness program was completed. This study conducts a document analysis of the program utilizing a political ecology lens to determine the extent to which the program adheres to or strays away from critical narratives surrounding both drivers of deforestation and inclusion and autonomy of federal, state, and local communities. By examining the entirety of the available documentation of the REDD+ Readiness program in Nigeria using a political ecological lens, this study demonstrates both an evolution of the program itself, and an evolution …

Tropical Cyclone Storm Surge Detection In Slash Pine Radial Growth Along The Northern Gulf Of Mexico Coastline, Alyssa C. Crowell

Master's Theses

My thesis examines the ecological impact of tropical cyclone (TCs) storm surge on coastal slash pine (Pinus elliottii var. elliottii Engelm) communities along the Gulf of Mexico in the southern United States (U.S.). Previous research has shown slash pine radial growth trends can be examined to identify long and short-term growth changes associated with TC passage, providing insight into overall stand health and resiliency through time. However, this previous research encompasses just one site in Mississippi. My thesis expands the spatial footprint of TC-surge impact on slash pine radial growth with the addition of three new sites.

I examined …

"Conserving" The Middle Ground: Tennessee's Unionist Press In The Secession Crisis, 1860-1861, Michael Singleton

Master's Theses

This thesis advances scholars’ understanding of how newspaper editors framed and presented news during the secession crisis of 1860-1861. Methodologically, it draws on the publications of seven Unionist editors from Tennessee who initially resisted secession but later pursued different courses during the Civil War. Through this period, editors balanced their roles as journalists and political actors working to advance an ideological cause. Guided by existing practices and their unique journalistic styles, these editors presented a near unified message—influenced by Whig political culture—that framed their response to outside events. This unanimity fractured in 1861 as local pressures, business interests, and personal …

Disturbance Ecology Of The Sonadora River Rock Pool Insect Assemblage At Luquillo Experimental Forest, Puerto Rico, Patrick Gilkey

Master's Theses

Freshwater rock pools can serve as habitat for aquatic insects. Flash-flooding can have profound effects on insect communities in streams and rivers, but these effects have not been studied on freshwater rock pools. The goal of this thesis was to describe ecological patterns of the Sonadora River rock pool insect community at the Luquillo Experiment Forrest, Puerto Rico, specifically in response to intense flash-flooding, and then perform experiments to elucidate possible processes to explain those patterns. The rock pools contained primarily three taxa of Dipteran (true-fly) larvae, in order of decreasing abundance, 1) a newly discovered species of ceratopogonid (biting …

Emplacement Of The Dadeville Complex Of The Southernmost Inner Piedmont Within The 7.5 Min. Cusseta Quadrangle, Chambers County, Alabama: Channel Flow, Klippe Kinematics, Or Orogen Parallel Translation, Timothy Black

Master's Theses

The Appalachian Mountains have a complex geologic history spanning three orogenic periods, the Taconic, the Acadian/Neoacadian, and Alleghanian orogenies. The Inner Piedmont of the Appalachian Mountains within Alabama contains two distinct lithologic complexes, the Dadeville Complex, and the Opelika Complex separated by the Stonewall Line. These complexes were formed during an arc-back arc fringing system during the Taconic orogeny and emplaced and recorded peak metamorphism during the Acadian orogeny.

The Dadeville Complex is an allochthonous arc terrain built on extended Laurentian crust. The mode of transportation and accretion after formation is not well understood, which has implications for the role …

Evaluating The Effects Of Mindfulness Practice On Attentional Control And Episodic Memory, Jacob M. M. Namias

Master's Theses

Mindfulness refers to a mental state of being that involves nonjudgmental acceptance of current cognitions and emotions with awareness of the present moment. Researchers and clinicians have shown the efficacy of mindfulness as a treatment for psychological disorders such as anxiety and depression and have found reductions in reported stress. Building on clinical benefits, mindfulness practice may also facilitate attentional processes as practitioners are required to inhibit distracting thoughts and re-direct their focus to the present moment. My thesis examined the relationship between mindfulness practice and attentional control and potential spillovers to episodic memory. Experiment 1 gauged the relationship between …

Psychosocial Maturity And Alcohol Outcomes: The Mediating Role Of Alcohol Protective Behavioral Strategies, Skyler Hoover

Master's Theses

The present study evaluated the mediating role of alcohol protective behavioral strategies on the relationship between temperance, responsibility, perspective (i.e., the facets of psychosocial maturity) and alcohol use outcomes. Potential invariant paths among graduate and undergraduate students were also explored. All participants were undergraduate and graduate students at the University of Southern Mississippi aged 18 to 25. Participants reported demographic information and completed measures of temperance, responsibility, perspective, alcohol use, and alcohol consequences. Results indicated the full mediation model showed poor fit the data; greater temperance predicted greater alcohol protective behavioral strategy use, greater responsibility and perspective predicted less alcohol …

Comparing Learned Representations Between Unpruned And Pruned Deep Convolutional Neural Networks, Parker Mitchell

Master's Theses

While deep neural networks have shown impressive performance in computer vision tasks, natural language processing, and other domains, the sizes and inference times of these models can often prevent them from being used on resource-constrained systems. Furthermore, as these networks grow larger in size and complexity, it can become even harder to understand the learned representations of the input data that these networks form through training. These issues of growing network size, increasing complexity and runtime, and ambiguity in the understanding of internal representations serve as guiding points for this work.

In this thesis, we create a neural network that …

Spacecraft Trajectory Optimization Suite: Fly-Bys With Impulsive Thrust Engines (Stops-Flite), Aaron H. Li

Master's Theses

Spacecraft trajectory optimization is a near-infinite problem space with a wide variety of models and optimizers. As trajectory complexity increases, so too must the capabilities of modern optimizers. Common objective cost functions for these optimizers include the propellant utilized by the spacecraft and the time the spacecraft spends in flight. One effective method of minimizing these costs is the utilization of one or multiple gravity assists. Due to the phenomenon known as the Oberth effect, fuel burned at a high velocity results in a larger change in orbital energy than fuel burned at a low velocity. Since a spacecraft is …

System Identification Of A Cantilever Beam With Interferometer Measurement Using Adaptive Filters, Jordan D. Kochavi

Master's Theses

Laser interferometry, commonly used in high-precision motion control systems, is rarely adopted in experimental vibration analysis because its installation and mounting is invasive to dynamical systems. However, metrology systems that already utilize laser interferometry, such as profilometry in semiconductor manufacturing, may benefit from interferometer feedback for signal processing. This study investigates the use of laser interferometry for system identification through a piezoelectrically actuated cantilevered beam.

The model of the beam including piezo actuators and optical measurement components are established through the Euler-Bernoulli beam theory. From the method of separation of variables, the continuous system is transformed into a discrete system …

Design Justice In Community-Oriented Engineering Pedagogy And Practice, Michael S. Reyna

Master's Theses

While engineering service-learning projects are seen as a favorable way for students to reinforce curricular learning while gaining cultural awareness, the outcomes of these projects center student benefits over partner community wellbeing. For these projects, and in other engineering contexts, various scholar-activists have conceptualized numerous principles and methods to center justice and equity in engineering outcomes. This research project and its associated intervention involved collecting scholarship and methods in engineering and social justice, and attempted to integrate these ideas into the practices of a local humanitarian service-learning engineering team. The collected scholarship centered around the topics of Design Justice, feminist …

Design And Analysis Of N-Path Filter For Radio Frequencies, Nathan M. Bergen

Master's Theses

Due to the growth of wireless communication many communication frequencies have grown increasingly dense. This density requires higher Q-factor to receive only the signal of interest. With the rise of smaller integrated circuits previous solutions used for filtering have become viable again. This paper explores whether the N-path filter is viable in the modern day for radio frequency receiver purposes. A non-differential N-path filter was created by utilizing Cadence Virtuoso with a working center frequency range of 750MHz to 1GHz while using TSMC technology. The desired quality factor of over 1,000 was reached while maintaining a total area of 800 …