Digital Commons Network^™

An Examination Of Average Pretrial Risk Assessment Scores Between Drug And Violent Offenders, Annaliese Engler

Master's Theses

With an overwhelming number of offenders in prison for a drug-related offense (Federal Bureau of Prisons, 2020), evidence-based practices are as important as ever to help properly determine incarceration. Prior literature has shown that pretrial release decisions impact the final outcome of the case and tools used for such a decision should be evaluated and scrutinized (Johnson et al., 2014; Oleson et al., 2014). It seems that although violent offenders pose more of a physical threat to the community than drug offenders, the pretrial risk assessment tools cater towards pushing drug offenders towards a higher risk score. Using data from …

Projecting Ecuadorian Cultures In Andean Dream: A Compositional Exploration Of Psycho-Ethnomusicology For Electronics And Chamber Ensemble, Daniela Paez

Master's Theses

The musical culture of Ecuador, despite being quite unknown to the world and to a great part of the Ecuadorian people, holds an unimaginable richness and diversity rooted in thousands of years of musical traditions. Mestizaje, the process of racial mixture that followed the European conquest, has encouraged homogeneity and uniformity. I am a part of this mestizo culture, that, in reality, does not hold the same worldviews as the diverse Indigenous Ecuadorian communities. The Kichwa community of Cotacachi, presented through musical materials in this thesis, experiences an undeniable connection between the rituals relevant to agricultural life, dance and music …

Exploring The Neurochemical Basis For Toluene-Induced Alterations In Accumbal Dopamine Neurotransmission, Kristofer Reiser

Master's Theses

Inhalants as environmental contaminants or recreational drugs pose a considerable health concern, but little is known about their mode of action. In 2011, a study from the National Institute for Drug Addiction revealed that an estimate of 21.7 million people aged 12 or older have used inhalants that contain high concentrations of volatile organic compounds, primarily toluene. These compounds can have debilitating impact on brain chemistry. While the impact of toluene on the central dopamine reward pathway has been already reported, the exact mechanism underlining the effect of toluene is still obscure. Towards this goal, the present work seeks to …

Indirect Impact Of Soil Microbial Communities On Plant-Aphid Interactions, Zachary Tiemann

Master's Theses

The community dynamics of soil micro-environments are influenced by root, fungal, and bacterial exudates that can preferentially select for functional classes of microbes. Arbuscular mycorrhizal fungi (AM) fungi and plant growth promoting rhizobacteria (PGPR) are members of this community form symbiotic relationships with plants and play an important role in triggering induced systemic resistance (ISR), resulting in defensive “priming.’ Consequently, ‘primed’ plants can activate stronger and faster defense responses to future attacks by pathogens and insects. The biological system in this study involved four genotypes of barrel medic plants (Medicago truncatula), pea aphids (Acyrthosiphon pisum), and microbial communities present in …

Development And Interactions Of Instructor And Student Musical Identities In A University Introductory Music Course For Non-Music Majors, Nicholas Booker

Master's Theses

The purpose of this study was to investigate student and instructor musical identities in the context of a university music course intended for non-music majors. Participants were the instructor of an introductory music course and 16 of her students at a medium-sized university in the western United States. Study of this group of participants and their interactions throughout one 15-week semester led to greater understanding of their roles in music as well as better insight into the many ways in which they formed connections between music and their identity concepts. The research allowed for the development of assertions based on …

The Effects Of Using Behavioral Skills Training In Teaching Non-Aba Professionals To Implement Discrete Trial Training: A Meta-Analysis, Lindsey Bernard

Master's Theses

This quantitative meta-analysis evaluated the effectiveness of behavioral skills training (BST) for training non-applied behavior analysis (ABA) professionals to implement discrete trial training (DTT), as well as examining the methodological rigor of these studies using WWC design standards. Results indicate that BST produces large effects and the majority of studies either met design standards with reservations or met design standards. As a result, researchers and practitioners may be optimistic that BST is an effective approach to training non-ABA professionals to implement DTT.

Comparing The Efficacy Of Two Affirmation Interventions To Reduce Stereotype Threat Effects On Women’S Math Performance, Alicia Macchione

Master's Theses

Research demonstrates when math-based gender stereotypes are activated (i.e., men are better at math than women), women display comparatively poorer math performance than men, a phenomenon referred to as stereotype threat. The current thesis project evaluated two self-affirmation interventions designed to reduce the effects of stereotype threat on women’s math performance. Participants completed a math test under one of four conditions: control (no explicit stereotype activation), stereotype threat (activation of gender performance stereotype) or stereotype threat combined with one of two self-affirmation manipulations. Women in the affirmation conditions either read about women’s greater verbal or relational ability and were asked …

A Collection Of Misfits, Kayla Gates

Master's Theses

The following creative writing thesis, A Collection of Misfits, includes a critically informed introduction which places my works of fiction within the larger conversation of contemporary fiction. These short stories explore numerous ways in which characters fail to connect to the world around them. Characters falter with relationships, religion, and fitting in. The collection also explores how the use of humor works to bridge the fissure that can form around a character who fails to connect–creating a personal connection between reader and character. Taken in sum, these stories indicate that we, as humans, have a binding thread that intertwines …

Honor Crimes: A Question Of Honor, Culture, And Humanity, Nadia N. Almusleh

Master's Theses

Honor crimes, femicide, domestic abuse and violence are widely prevalent in patriarchal societies. Middle Eastern cultures deeply value protecting the chastity and honor of women. The traditional images of women and the notions of honor and shame are consistently used as justifications for violence and killings. This is not attributable to a single culture or religion. It is rather a manifestation of societal norms around gender-based violence. Feminist activism against honor crimes in the Middle East within the last decade has increasingly received social media attention. However, the impact of this social media activism on government intervention has yet to …

The Effects Of Sexual Surrogacy On Satisfaction, Happiness, And Well-Being, Ryan Liu-Pham

Master's Theses

The study tested the effects of sexual surrogacy, which I define as the desire to fulfill sexual needs with a surrogate target (e.g., celebrity crushes), on sexual satisfaction, relationship, happiness, and well-being. To examine this topic, I conducted a cross-sectional experimental study. After being asked about sexual desire toward either their current partner or a celebrity crush with a sexual desire behavior inventory, participants were asked to answer questions about their sexual satisfaction, relationship satisfaction, happiness, and well-being. I predicted that desire toward both surrogates and interpersonal targets will predict higher levels of sexual satisfaction, happiness, and well-being but that …

A Deep Learning-Based Automatic Object Detection Method For Autonomous Driving Ships, Ojonoka Erika Atawodi

Master's Theses

An important feature of an Autonomous Surface Vehicles (ASV) is its capability of automatic object detection to avoid collisions, obstacles and navigate on their own.

Deep learning has made some significant headway in solving fundamental challenges associated with object detection and computer vision. With tremendous demand and advancement in the technologies associated with ASVs, a growing interest in applying deep learning techniques in handling challenges pertaining to autonomous ship driving has substantially increased over the years.

In this thesis, we study, design, and implement an object recognition framework that detects and recognizes objects found in the sea. We first curated …

No More Shade: Deforestation And Rural-Urban Migration In Nigeria, Kambre Sims

Master's Theses

Some of the most well-documented motivating factors of migration in Nigeria include education, employment opportunities, and cultural conflicts. However, as the deforestation crisis has not improved and Nigeria has maintained its spot as the country with the most deforestation on Earth, access to critical forest resources may be in danger. In light of this crisis, this paper attempts to determine if deforestation has become a new motivating factor for migration as those in rural communities seek other avenues of obtaining those vital resources. Subsequently, Nigeria is also experiencing a housing crisis within its rapidly growing urban centers; obtaining and keeping …

Foundations Of Development: Perceptions Of Character And Leadership Development In Collegieate Judo Student Athletes, Hiroshi Yamaguchi

Master's Theses

Sports have been a tool for development within educational institutions for decades. In the United States, around 8 million high school students participate in high school sports. Very few go on to play for University Athletic Departments. Out of the 8 million students, only 495,000 (6.1%) of them will compete at NCAA schools (NCAA, 2020). Though the probability of competing in the NCAA's elite divisions is low, university students have plenty of opportunities to play and compete in sports via club/recreational sports programs, intramurals, and physical education courses. Estimates show that over 2 million higher education students in the United …

An Interdisciplinary Approach: Schizophrenia Derails Heteronormative Expectations In Psychological Narratives 2021, Bobbie Jo Weaver

Master's Theses

Required introductory psychology courses teach students a general and oversimplified version of the immense number of subfields within Psychology studies, much like introductory literature classes compress different genera throughout history into a miniscule number of “representative” texts. Nevertheless, these footholds generate an entryway into a whole new world of (specialized) exploration. Reading a text such as The Quiet Room: A Journey out of the Torment of Madness by Lori Schiller and Amanda Bennett provides a window for many students to crawl into one of Psychology’s darkest shadows, the field of abnormal psychology. Schiller’s non-fictional memoir, The Quiet Room, tells readers …

Found Media: Interactivity And Community In Online Horror Media 2021, Jax Mello

Master's Theses

Being isolated is a common fear. The fear can take many forms, from the fear of being the last one alive in a horrific situation to being completely deserted by everyone you love. This is a fear that has been showcased many different times in movies, novels, and every other piece of media imaginable. Although not always tied to the horror genre, the fear of being isolated is tightly intertwined with many horror stories. Therefore, it is interesting when a horror production goes out of their way to encourage interactivity within its audience. This goes beyond an artist’s desire for …

Design Of An Ultra-Wideband Frequency-Modulated Continuous Wave Short Range Radar System For Extending Independent Living, Toai-Chi Nguyen

Master's Theses

Falls in the disabled and elderly people have been a cause of concern as they can be immobilized by the fall and have no way to contact others and seek assistance. The proposed frequency modulated continuous wave (FMCW) short range radar (SRR) system, which uses ultra-wideband (UWB) signals can provide immediate assistance by monitoring and detecting fall events. The unique characteristics of this system allow for a frequency-based modulation system to carry out triangulation and sense the location of the fall through the usage of a continuous chirp signal that linearly sweeps frequency. This project focuses on the development, design …

The Role Of Med12, Notch1, And Notch3 In Adipose Stem Cell Self-Renewal And The Integrated Use Of Stem Cells In Public Educational Materials, Rebecca Hodnett

Master's Theses

Human adipose-derived mesenchymal stem cells offer significant therapeutic potential as an ethically sound, easily accessed source of adult stem cells. To harness their medically relevant properties, it is necessary to understand the mechanisms that control their fate. Cell state and differentiation of stem cells is determined by interactions of signaling pathways, chromatin modifiers, and transcription factors working to regulate cell-type specific gene expression profiles. Specifically, both the MED12 subunit of the Mediator complex and the Notch signaling pathway are known to individually influence hASC self-renewal. We investigated the relationship between Notch signaling and transcriptional cofactor, MED12, to elucidate a potential …

Physics Engine On The Gpu With Opengl Compute Shaders, Quan Huy Minh Bui

Master's Theses

Any kind of graphics simulation can be thought of like a fancy flipbook. This notion is, of course, nothing new. For instance, in a game, the central computing unit (CPU) needs to process frame by frame, figuring out what is happening, and then finally issues draw calls to the graphics processing unit (GPU) to render the frame and display it onto the monitor. Traditionally, the CPU has to process a lot of things: from the creation of the window environment for the processed frames to be displayed, handling game logic, processing artificial intelligence (AI) for non-player characters (NPC), to the …

Natural And Experimental Noise Affects Acoustic Communication In Songbirds, Veronica Arlene Reed

Master's Theses

Background noise is ubiquitous and can impair acoustic communication and influence signaling behavior in animals. Despite evidence demonstrating myriad effects of anthropogenic noise on animal communication, precisely how natural background noise influences communication and behavior remains unclear. Yet, natural sources of background noise, such as rushing rivers or crashing ocean surf, share similar power spectra to sources of anthropogenic noise and can occur at high amplitudes, potentially masking acoustic signals.

To investigate the effects of water-generated noise on songbird behavior, we experimentally broadcast landscape-level playbacks of ocean surf and river noise in coastal California, USA, and riparian habitat in Idaho, …

Gpu High-Performance Framework For Pic-Like Simulation Methods Using The Vulkan® Explicit Api, Kolton Jacob Yager

Master's Theses

Within computational continuum mechanics there exists a large category of simulation methods which operate by tracking Lagrangian particles over an Eulerian background grid. These Lagrangian/Eulerian hybrid methods, descendants of the Particle-In-Cell method (PIC), have proven highly effective at simulating a broad range of materials and mechanics including fluids, solids, granular materials, and plasma. These methods remain an area of active research after several decades, and their applications can be found across scientific, engineering, and entertainment disciplines.

This thesis presents a GPU driven PIC-like simulation framework created using the Vulkan® API. Vulkan is a cross-platform and open-standard explicit API for graphics …

A Method For Visualizing The Structural Complexity Of Organizational Architectures, Jacob Michael B. King

Master's Theses

To achieve a high level of performance and efficiency, contemporary aerospace systems must become increasingly complex. While complexity management traditionally focuses on a product’s components and their interconnectedness, organizational representation in complexity analysis is just as essential. This thesis addresses this organizational aspect of complexity through an Organizational Complexity Metric (OCM) to aid complexity management. The OCM augments Sinha’s structural complexity metric for product architectures into a metric that can be applied to organizations. Utilizing nested numerical design structure matrices (DSMs), a compact visual representation of organizational complexity was developed. Within the nested numerical DSM are existing organizational datasets used …

Condition Monitoring And Fault Detection Of Blade Damage In Small Wind Turbines Using Time-Series And Frequency Analyses, Luke H. Costello

Master's Theses

Condition monitoring systems are critical for autonomous detection of damage when operating remote wind turbines. These systems continually monitor the turbine’s operating parameters and detect damage before the turbine fails. Although common in utility-scale turbines, these systems are mostly undeveloped in distributed, small-scale turbines due to their high cost and need for specialized equipment. The Cal Poly Wind Power Research Center is developing a low-cost, modular solution known as the LifeLine system. The previous version contained monitoring equipment, but lacked decision-making capabilities.

The present work builds on the LifeLine by developing software-based detection of blade damage. Detection is done by …

Biological Semantic Segmentation On Ct Medical Images For Kidney Tumor Detection Using Nnu-Net Framework, Andres Bergsneider

Master's Theses

Healthcare systems are constantly challenged with bottlenecks due to human-reliant operations, such as analyzing medical images. High precision and repeatability is necessary when performing a diagnostics on patients with tumors. Throughout the years an increasing number of advancements have been made using various machine learning algorithms for the detection of tumors helping to fast track diagnosis and treatment decisions. “Black Box” systems such as the complex deep learning networks discussed in this paper rely heavily on hyperparameter optimization in order to obtain the most ideal performance. This requires a significant time investment in the tuning of such networks to acquire …

Clustering Web Users By Mouse Movement To Detect Bots And Botnet Attacks, Justin L. Morgan

Master's Theses

The need for website administrators to efficiently and accurately detect the presence of web bots has shown to be a challenging problem. As the sophistication of modern web bots increases, specifically their ability to more closely mimic the behavior of humans, web bot detection schemes are more quickly becoming obsolete by failing to maintain effectiveness. Though machine learning-based detection schemes have been a successful approach to recent implementations, web bots are able to apply similar machine learning tactics to mimic human users, thus bypassing such detection schemes. This work seeks to address the issue of machine learning based bots bypassing …

The Effect Of Focused Ultrasound On Altering The Diameter Class Of Nerve Fibers Contributing To A Compound Evoked Potential, Analyzed Using A Perturbative Decomposition Technique., Megan Wurden

Master's Theses

Peripheral neuropathies are disorders that involve the damage of peripheral nerve fibers, affecting the ability of different parts of the body to communicate. A differentiating factor in diagnosis between various clinical conditions can be which size class of nerve fibers are affected. A nerve conduction velocity test can be used to assess the viability of the nerve but is a single-parameter test and gives no information about the population characteristics of the remaining active fibers. A method developed and previously reported by Szlavik (2016) utilizes a mathematical perturbed decomposition to determine the normalized frequency of each size class of fiber …

Early Wildfire Detection With Line Sensors, Virginia Yan

Master's Theses

Over the last few years, wildfires have become more devastating to communities as the fires are inevitably destructive to many homes, businesses, and ecosystems. Frequent wildfires also pose a significant threat to power grids and nearby residents as they can damage transmission lines and other electrical equipment, which in turn can cause major power shutdowns. Especially in western U.S., severe drought conditions and weather variability cause residents to become more vulnerable to wildfire disasters as their safety is threatened. We are incompetent to control the wildfires effectively despite existing advanced technologies. Hence, an algorithm based on energy conservation and heat …

Development Of Novel Hardware And Software For Wind Turbine Condition Monitoring, Ryan A. Zhan

Master's Theses

With the increased use of wind turbines as sources of energy, maintenance of these devices becomes more and more important. Utility scale wind turbines can be time consuming and expensive to repair so an intelligent method of monitoring these devices is important. Commercial solutions for condition monitoring exist but are expensive and can be difficult to implement. In this project a novel condition monitoring system is developed. The priority of this system, dubbed the LifeLine, is to provide reliable condition monitoring through an easy-to-install and low-cost system. This system utilizes a microcontroller to collect acceleration data to detect imbalances on …

Investigating The Function Of Carboxypeptidase O Gene Paralogs From Xenopus Tropicalis, Ritchie Saint Jean

Master's Theses

Carboxypeptidase O (CPO) is a peptidase that is a member of the A/B subfamily of the metallocarboxypeptidases. This peptidase has been found in the brush border of the intestine and has specificity toward C-terminal acidic residues. CPO has been proposed to be involved in intestinal digestion and the formation of lipid droplets. Four copies of the CPO gene are present in the Xenopus tropicalis (tropical clawed frog) genome and are noted as CPO.1, CPO.2, CPO.3, and CPO.4. Not much is known about these genes regarding their properties and functions. In my research, I sought to investigate the properties and functions …

Andrews University Communication Under The Covid-19 Pandemic: Feedback Analysis Of International Students, Brice B. Eboule

Master's Theses

This research is an informative analysis of international students’ feedback on the Andrews University (AU) crisis communication during the COVID-19 pandemic in 2020. Participants were 21 years or older, on student visas, living on-campus or in student communities and had attended AU for at least 2 years. The theory informing this study is situational crisis communication theory (SCCT). The SCCT argues that the severity of the crisis defines which communicational crisis strategy will be more effective in minimizing attributions and adverse press while both maintaining and enhancing the organization's credibility. The findings of this study indicated that 84 percent of …

The Effect Of Virtual Learning On Parents During Covid-19, Sheila Reeves

Master's Theses

Parents were affected in numerous ways by the sudden shut down of schools and switch to virtual learning in March 2020 due to the COVID-19 pandemic. Some of these ways included use of technology, income, race, time, mental health, family life and parent insecurities. This study investigates parents' perspectives of some ways they were affected in regards to the virtual learning of their child(ren). All parents with children enrolled at Madison Campus Elementary School were invited to participate in the study, as they had at least one year's experience with their child(ren) in virtual learning.

Data was collected using a …