Digital Commons Network^™

Decolonizing A Settler Colonial State: How Canada And The United States Have Approached Investigations Into Indigenous Boarding And Residential Schools, Holly Jacobs

Master's Theses

Indigenous boarding and residential schools were in use for over 100 years in both Canada and the United States. Grown from numerous policies aimed at assimilation, dispossession, and genocide of the Indigenous peoples of North America, these residential schools had a particular aim: to wipe away all cultural and familial ties of every individual and to replace them with beliefs and values of white settlers. Though the schools are no longer in operation, their legacy of erasure and pain continues to affect survivors, their descendants, and Indigenous communities across both nations. This thesis looks at what the federal governments of …

Physical Activity, Self-Determination, And Self-Conscious Emotions In Adolescents And Young Adults With And Without Autism Symptomatology, Dakota Morales

Master's Theses

Previous literature suggests that autistic individuals engage in physical activity less frequently compared to typically developing peers (Bandini et al., 2013; Jones et al., 2017). This is noteworthy because exercise interventions for autistic individuals have found that engaging in physical activity can improve motor, social, and behavioral skills (Anderson-Hanley et al., 2011; Duffy et al., 2017; Nicholson et al., 2011; Oriel et al., 2011). Thus, the present study seeks to understand what factors may promote physical activity engagement, such as self-determination motivation regulations and body-related self-conscious emotions, in adolescents and young adults with and without autism symptomatology. Participants included 51 …

How To Build A Cortex: Coordinated Assembly Of Cortical Septins And Actomyosin In The Leader Bleb, Asia Marie Paguntalan

Master's Theses

In confined spaces, migrating cells can undergo mesenchymal-to-amoeboid transitions by altering their cortical dynamics and adhesion with the environment. Septins frequently associate with cortical actin and non-muscle myosin (NMII), but the functional nature of these interactions remains unclear. Upon non-adhesive confinement and NMII enrichment, fibroblasts can switch to a fast, leader bleb-based mode of motility, characterized by the absence of adhesions and stress fibers and formation of a single, elongated leader bleb. During this transition, cortical actin remodeling and polarized NMII contractility drive leader bleb stabilization by generating long-range cortical flows, in coordination with changes in septin localization and assembly …

Changing Vaccine Hesitant Attitudes Of Parents Using Moral Persuasion, Max Vitro

Master's Theses

In the fight against Covid-19, overt, science-based messaging is not enough to persuade everyone to get vaccinated no matter how encouraging the data. Recent studies on attitudes toward vaccines and other health-promoting measures have provided clues as to why so many are still opposed, suggesting many who were resistant had reasons that were rooted along moral grounds. This process of moralization occurs when a belief becomes a moral matter of ‘right and wrong’ rather than a means to an end. Because moral beliefs are more entrenched, they’ve proven much more difficult to change. There is one approach that could increase …

Incorporating Sex Chromosomes In Transcriptome Prediction Models And Improving Cross-Population Prediction Performance, Daniel S. Araujo

Master's Theses

Transcriptome prediction models built with data from European-descent individuals are less accurate when applied to different populations because of differences in linkage disequilibrium patterns and allele frequencies. We hypothesized multivariate adaptive shrinkage may improve cross-population transcriptome prediction, as it leverages effect size estimates across different conditions - in this case, different populations. To test this hypothesis, we made transcriptome prediction models for use in transcriptome-wide association studies (TWAS) using different methods (Elastic Net, Matrix eQTL and Multivariate Adaptive Shrinkage in R (MASHR)) and tested their out-of-sample transcriptome prediction accuracy in population-matched and cross-population scenarios. Additionally, to evaluate model applicability in …

Ecclesiological Sovereignty: Toward An Understanding Of The Sovereignty Of The Pope In The Context Of Luther's Responses, Erik Lee Grayvold

Master's Theses

This thesis seeks to address the contention between the perceived sovereign power of the Papacy and the Protestant Reformers. It will first provide a historical survey of how the Pope came to understand himself through the history of the Church. It will then analyze responses from the Reformers regarding this topic, focusing mainly on confessional documents and responses to these documents from the Roman Catholic Church. It will conclude with a survey of Luther’s specific responses to the situation and how his response to Papal authority and sovereignty impacted this theological development. This survey will also acknowledge situations in which …

Characterizing The Dynamic Localization Of Cmi In Early Drosophila Development, Asra Habibullah

Master's Theses

The COMPASS-like family of lysine methyltransferases, MLR/MLX complexes, are epigenetic regulators that are essential for normal development through the methylation of the fourth lysine residue on histone 3 (H3K4), a universal epigenetic mark associated with active transcription. This family of complexes is highly conserved from yeast to mammals and the genes encoding the human MLR complexes have been associated with various developmental diseases and cancers (Dingwall and Fagan, 2019). In D. melanogaster, the enzymatic methyltransferase core of this complex is composed of two proteins: Cara Mitad (Cmi, also known as Lpt) and Trithorax-related (Trr). Although these proteins have been shown …

Parental Autonomy Support And Children’S Stem Engagement During An At-Home Tinkering Activity, Bianca Martins Aldrich

Master's Theses

Parents play an important role guiding children’s learning of science, technology, engineering, and mathematics (STEM) in informal educational contexts. In this project, we considered the ways in which parents use autonomy supportive or controlling language to encourage or discourage children's independence in problem solving, as well as their feedback to children’s ideas and behaviors. We looked at the association between autonomy support and children’s behavioral, STEM, story, and emotional engagement during an at-home tinkering and storytelling activity. Parents and their 4- to 10- year old children were observed at home via Zoom. We coded parents’ and children’s behaviors using a …

Predicting Lower Millennial Turnover Intentions: Examining Work Benefits Factors And Organizational Environment Factors As Sets, Lyric W. Fortson

Master's Theses

Millennials make up the majority of the working population now, however organizations are struggling to retain them, as they tend to turnover in their job roles after an average of just a few years. The purpose of this study was to examine what workplace variables could predict lower turnover intentions in Millennials. This study examined a set of two work benefits factors, satisfaction with salary and satisfaction with career advancement, and a set of three organizational environment factors, satisfaction with feedback, satisfaction with supervisor, and satisfaction with work-life balance, as predictors of lower turnover intentions in Millennials. A survey was …

Bubble Detection Under Microgravity In A Closed-Loop Microchannel Perfusion System, Max S. Kim

Master's Theses

Altered gravitational conditions result in changes in biological function. Studies in microgravity have shown irregularities in fluid redistribution within the vascular system. In order to study these irregularities, a cell culture perfusion system is necessary. Bubbles can proliferate in closed-loop systems and are detrimental to cells. However, the effects of bubbles in a closed-loop system in microgravity are unknown. Accordingly, the hypothesis of this investigation is that the absence of a constant-direction gravitational body force will exacerbate the presence of bubbles in a closed-loop microfluidic perfusion system. In order to examine the hypothesis, a closed-loop microfluidic cell culture perfusion system …

Accident Prediction On E-Bikes Using Computer Vision, Rohith Puvvala Subramanyam

Master's Theses

Micro Mobility refers to small, confined pace range, and lightweight modes oftransportation, which include e-Bikes and e-Scooters. Micro Mobility riders are prone to harm and deadly injuries on city streets. Statistics show that on average 27 out of 82 (33%) humans, in the United States get injured every day in e-motorcycle injuries, which is rapidly increasing as compared to previous years. The current accident prediction strategies have been rather technically complicated to be incorporated onto micromobility vehicles which are lighter in weight and smaller in size. Current strategies bring key challenges to light. First, as micro-mobility vehicles are small and …

Where And Why Do Ecosystem-Based Adaption Projects Take Place In California?, Daniel K. Jacobson

Master's Theses

California is experiencing the harmful impacts of climate change and will continue to do so for generations. As a result, municipalities have been forced to turn to adaptation solutions to help local residents adjust to inevitable impacts such as sea level rise, extreme heat, and extreme weather. Ecosystem-based adaptation (EbA), the use of nature and ecosystem services to help human systems adapt to climate change impacts, is an increasingly popular, cost-effective, and multi-benefit adaptation strategy. While prior research has shown that other forms of adaptation, often referred to as ‘hard’ and ‘soft’ strategies, disproportionately benefit whiter and wealthier populations, there …

Advertisement Blindness In Social Media Apps, Nora Szladovics

Master's Theses

Advertisement blindness (ad blindness) is a general term that refers to people’s tendency to automatically and unconsciously ignore advertisements. The phenomenon was originally identified in banner ads, then later in text and native ads on websites. Today, social media is an effective tool for advertisers, yet research investigating users’ interaction habits with social media ads in mobile applications (apps) is unexplored. This study expands the ad blindness concept to mobile social media apps, examining its presence and whether target position has an influence. Further, it investigates the relationship between social media use and ad blindness. Employing a novel approach, the …

Reconstructing Auditory Evoked Cortical Response With Fewer Trials, Zoey Y. Zhang

Master's Theses

Auditory evoked fields (AEF) paradigm is a common research tool to study human auditory responses by using Magnetoencephalography (MEG), a neuroimaging tool. AEF paradigm requires repetition over many trials to achieve adequate signal-to-noise ratio (SNR), but Autistic children and some other populations cannot tolerate prolonged exam time due to various reasons. To address these challenges, this project uses a novel machine learning algorithm, Champagne with baseline noise learning, to reconstruct AEF data with fewer trials (80%, 60%, 40%, 20%) but produce the same results as using all AEF trials (100%). The results show that this novel machine learning algorithm can …

Central Americans At A Crossroads: Asylum Seekers’ Testimonios Of Mental Health After Detention And Family Separation, Corie E. Schwabenland Garcia

Master's Theses

Though Central American asylum seekers are presently hypervisible in the U.S. consciousness, this population continues to be inadequately understood or cared for. Discussion of this population often presents them as a helpless and damaged population, in need of saving, fixing, or shelter -- beyond their trauma, they cease to exist. This qualitative study utilizes first-person testimonio methodology to understand the psychological experiences of Central American migrants seeking asylum in the United States, the stressors they face, and the mental health support that can and should be provided to them. Their stories speak to a space of sociopolitical precarity in the …

Queen Academy, Hantian Zhnag

Master's Theses

As an upmarket novel exploring immigration and racial dynamics, Queen Academy lies at the intersection of Kathryn Ma’s The Chinese Groove, Timothy Wang’s Slant, and Toni Morrison’s The Bluest Eye in style and subject. The protagonist Kang comes to the US from China to study statistics, but finds himself becoming a “potato queen”—an Asian gay man interested in dating white men only—and locked in self-loathing. It will take a heartbreak and treading the line of illegality to see himself again. Overall, by engaging with themes of immigration, belonging, and racialized desire, the novel takes the stance that the …

Acetylacetone Oxidation At Room Temperature: A Multiplexed Photoionization Mass Spectrometric Investigation, Study Of The Russell Intermediates In Gas Phase Reactions, And The Investigation Of Oxidation Reaction Products Of Ethanol At Room Temperature, Sara Gallarati

Master's Theses

This thesis presents the combustion study of acetyl acetone using synchrotron radiation coupled with multiplexed photoionization mass spectrometry at 298 K. The experiments were performed at the Chemical Dynamics Beamline 9.0.2 at the Advanced Light Source of the Lawrence Berkeley National Laboratory. The reaction of acetyl acetone with chlorine (Cl) radicals was analyzed based on their photoionization spectra and reaction kinetic profiles.

Additionally, a study of the Russell intermediate has been performed. Previous to experimentation at the Advanced Light Source, computational analysis has been investigated to evaluate compounds that could possibly lead to the formation of a stable species. The …

Motives For (In)Effective Giving: Comparing Rural And Urban Groups In South Africa., Luvuyo Bulelani Magwaza

Master's Theses

Different cultures have their own set of norms and values that not only shape people’s motives but also influences their decision making. What may be viewed as logical and ethical in one culture, may be seen as illogical or unethical in another. One area that is consistently affected by cross-cultural differences in motives is charitable giving. Recently, there has been an increase in interest around effective altruism— a social movement and philosophy that argues, people should give to charities that do the most good. Prior research that has found that people do not give based on efficiency; instead, people give …

Investigating The Contribution Of Marine Viruses To Optical Backscatter In The <0.2 Μm Fraction Of Seawater, Kacey Mae Lange

Master's Theses

Marine viruses are the smallest and most abundant biological entities in the ocean. Marine viruses play a significant role in carbon and nutrient cycles through the liberation of dissolved organic matter (DOM) through the lysis of their numerically dominant hosts (i.e. bacteria and phytoplankton). Despite their importance, little is known about how viruses contribute to seawaters inherent optical properties (IOP) of seawater, specifically backscatter. All particles produce backscatter, with their contribution dependent on particle size, concentration, and composition. Living particles contribute 10-20% of the total backscatter with the remaining 80% of unclassified backscatter, “missing backscatter”, contributed by submicron particles ( …

A Meta-Analysis Of Antecedent Exercise On Children’S Classroom Behaviors, Chelsea Johnson

Master's Theses

The purpose of the current study was to systematically review the literature investigating the effects of antecedent aerobic exercise on students with emotional and behavioral disorders. Eighteen studies met inclusion criteria, which included single case design studies and group studies, participant age, and an exercise intervention. Tau U was used as the procedure to calculate an effect size for A-B contrasts for single case design studies and effect size ranged from small to moderate for multiple variables such as disruptive behavior and academically engaged behavior. Hedges g was used to calculate an omnibus effect size for all single case design …

How A Book Changed A Nation [2022], Teodora Buzea

Master's Theses

“We don’t believe in vampires.”

I didn’t bother to turn away from the TV to look at my parents. On screen, a crew of young men were interviewing an old woman. She spoke only Romanian, and a too-perfect female voice spoke for her in English. I could see the confident fear in her expression as she exclaimed that vampires were indeed real and that she was always scared of them. She wasn’t alone. All of Transylvania were aware of the existence of vampires. Truly, these young men— ghost hunters and cryptologists—were right to come here to this haunted nation. The …

Project Management And Systems Engineering Framework For Educational Cubesat Missions, Bailey Garrett

Master's Theses

The rising complexity of CubeSat missions and the unique challenges faced by educational CubeSat programs lead to high rates of mission failure. Implementing project management and systems engineering practices can alleviate these challenges and improve mission success rates for educational CubeSat developers. However, existing project management and systems engineering resources are too cumbersome and often assume the student has a base-level understanding of project management and systems engineering fundamentals. A new universal project management and systems engineering framework was created and tailored specifically to the needs of an educational CubeSat mission. The framework was designed to accommodate first-time CubeSat developers, …

Identifying And Minimizing Underspecification In Breast Cancer Subtyping, Jonathan Cheuk-Kiu Tang

Master's Theses

In the realm of biomedical technology, both accuracy and consistency are crucial to the development and deployment of these tools. While accuracy is easy to measure, consistency metrics are not so simple to measure, especially in the scope of biomedicine where prediction consistency can be difficult to achieve. Typically, biomedical datasets contain a significantly larger amount of features compared to the amount of samples, which goes against ordinary data mining practices. As a result, predictive models may fail to find valid pathways for prediction during training on such datasets. This concept is known as underspecification.

Underspecification has been more accepted …

A Design Of A Digital Lockout Tagout System With Machine Learning, Brandon H. Chen

Master's Theses

Lockout Tagout (LOTO) is a safety procedure instated by the Occupational Safety and Health Administration (OSHA) when doing maintenance on dangerous machinery and hazardous power sources. In this procedure, authorized workers shut off the machinery and use physical locks and tags to prevent operation during maintenance. LOTO has been the industry standard for 32 years since it was instantiated, being used in many different industries such as industrial work, mining, and agriculture. However, LOTO is not without its issues. The LOTO procedure requires employees to be trained and is prone to human error. As well, there is a clash between …

Design Of A System To Investigate The Relationship Between Feedback And Delivery Medium For A Novel Motor Task, Ashley Humpal

Master's Theses

Stroke is a chronic, lifelong illness, and full recovery requires continuous physical and cognitive rehabilitation. Such long-term rehabilitation is cost-prohibitive; however an approach to providing long-term therapy that has recently gained traction is the use of socially assistive agent (SAA) systems. These systems make use of non-contact communication devices and can be used to guide people through a variety of rehabilitative tasks. They have the potential supplement current rehabilitation practices by providing motivation during intense exercises, and can extend the reach of the therapist into remote and home settings.

Though SAA systems have been used in a variety of rehabilitative …

Effects Of Atomic Oxygen On Outgassing Of Silicone Materials, Samuel Westrick

Master's Theses

An important consideration for spacecraft material selection is the space environment that the spacecraft will be operating in. Two features of the space environment that drive material selection are material outgassing and the presence of atomic oxygen in low Earth orbit (LEO). Materials that are considered for use in space are tested to be able to understand how they’ll outgas on orbit and how they’ll respond to interactions with atomic oxygen. However, testing to understand how atomic oxygen interaction with a material will affect how the material will outgas is rare and not standardized. This thesis used a vacuum chamber …

A Study On The Effects Of Cementless Total Knee Arthroscopy Implants' Surface Morphology With Finite Element Analysis, Peter Hunt

Master's Theses

Total knee arthroscopy is one of the most performed and most successful orthopedic surgeries, with nearly a million procedures performed in 2020 in the United States alone. Due to changing patient demographics, the use of cementless fixation for implant stability is becoming more prevalent amongst recipients. Cementless implants rely on the surface morphology of a porous coating to bond implant to bone; the quality of this bond is dependent on an interference fit and the roughness, or coefficient of friction, between implant and bone. Stress shielding is a comparison of the properties in implanted bone to natural bone; it is …

Wildfire Spread Prediction Using Attention Mechanisms In U-Net, Kamen Haresh Shah, Kamen Haresh Shah

Master's Theses

An investigation into using attention mechanisms for better feature extraction in wildfire spread prediction models. This research examines the U-net architecture to achieve image segmentation, a process that partitions images by classifying pixels into one of two classes. The deep learning models explored in this research integrate modern deep learning architectures, and techniques used to optimize them. The models are trained on 12 distinct observational variables derived from the Google Earth Engine catalog. Evaluation is conducted with accuracy, Dice coefficient score, ROC-AUC, and F1-score. This research concludes that when augmenting U-net with attention mechanisms, the attention component improves feature suppression …

Ectotherm Thermoregulation At Fine Scales: Novel Methods Reveal A Link Between The Spatial Distribution Of Temperature And Habitat Quality, Ian Axsom

Master's Theses

Investigating ecological questions at the scale of individual organisms is necessary to understand and predict the biological consequences of environmental conditions. For small organisms this can be challenging because we need tools with the appropriate accuracy and resolution to record and quantify their ecological interactions. Unfortunately, many of our existing tools are only appropriate for medium to large organisms or those that are wide ranging, inhibiting our ability to investigate the ecology of small organisms at fine scales.

In Chapter 1, I tested a novel workflow for recording animal movements at very fine spatial and temporal scales. The workflow combined …

Switching “Leader” And “Follower” Roles: The Wedding First Dance As A Representation Of A Modern Relationship, Anna Magidson

Master's Theses

The purpose of this exploratory study was to determine whether introducing switch dancing as an alternative to the traditional “leader” and “follower” role dynamic in a wedding first dance could be an effective tool of empowerment for people of all gender identities and sexual orientations. It was particularly important to understand whether this could have a positive impact on the lesbian, gay, bisexual, transgender, queer, intersex, asexual, and other (LGBTQIA+) community. To the researcher’s knowledge, no other academic research paper has ever examined the intersectionality between the wedding industry, the LGBTQIA+ community, and switch partner dancing. This study was developed …