Digital Commons Network^™

The Digital Forum: A Pedagogical Approach To Teaching College English Composition, Thomas Edward Plichta

Theses and Dissertations

This action research study focused on the identification of ways to improve the curriculum of freshman Writing Intensive Seminars using an innovative multimodal pedagogical methodology, the Digital Forum, in addition to formal papers and in-class writing. The research examined a Writing Intensive Seminar with approximately 20 students; There were two Research Questions for the present study. RQ1: How does the incorporation of the Digital Forum as a pedagogical approach in college freshman writing classes influence students' levels of behavioral, cognitive, and emotional engagement? RQ2: How does the incorporation of Digital Forums in freshman English Composition courses affect the quality of …

The Effect Of An Interdisciplinary Project On Students’ Understandings Of Mathematical Interdisciplinarity: A Qualitative Action Research Study, Jaime Krause

Theses and Dissertations

The siloed nature of education has likely caused some high school students to not recognize the interdisciplinary nature of mathematics, leading them to misunderstand its relationship to other subject areas. A misunderstanding of mathematical interdisciplinarity can cause issues when these students approach interdisciplinary problems later in life. The purpose of this study was to observe, investigate, and analyze the ways in which students understand mathematical interdisciplinarity following a collaborative and interdisciplinary project. I implemented a descriptive qualitative action research approach to determine how a collaborative interdisciplinary project on NASA technology in a high school mathematics course affects students’ understandings of …

Causal Neuro-Symbolic Artificial Intelligence: Synergy Between Neuro-Symbolic And Causal Artificial Intelligence, Utkarshani Jaimini

Theses and Dissertations

Understanding and reasoning about cause and effect is innate to human cognition. In everyday life, humans continuously engage in causal reasoning and hypothetical retrospection to make decisions, plan actions, and interpret events. This cognitive ability allows us to ask questions such as: “What caused this situation?”, “What will happen if I take this action?”, or “What would have happened had I chosen differently?” This intuitive capacity to form mental models of the world, infer causal relationships, and reason about alternative scenarios, particularly counterfactuals, is central to our intelligence and adaptability. In contrast, current machine learning (ML) and artificial intelligence (AI) …

Investigating The Ecology Of The Homeless Court: The Promise Of Quasi-Experimental And Statistical Learning Methods, Dylan Wong

Theses and Dissertations

Interactions with the legal system are a crucial factor in maintaining homelessness. Difficulties in addressing legal issues are barriers to accessing services and finding employment and housing. Across the United States, the homeless court is an emerging legal program that has been developed to break this cycle, but they appear to face numerous capacity and coordination problems. Few empirical and systematic investigations have been conducted on homeless court programs. Further, previous studies of homeless courts focus their process and outcome measures on the priorities of the legal system. An investigation into the ecology, or environmental context, of homeless persons would …

Increasing Professional School Counseling Advocacy Skills For The Practicing Secondary School Counselor, Beverly Denise Mccullough

Theses and Dissertations

This problem of practice addresses increasing Professional School Counselor (PSC) advocacy skills for the practicing secondary school counselor. Improvement science is the framework used to help solve this problem. The PSC improvement team consisted of a team of seven licensed professional school counselors, all with career experience in the secondary school setting. The team began their work with the goal of understanding the current system by participating in an initial empathy interview. Immediately after the empathy interview was concluded, each committee member completed an initial assessment of the School Counselor Self Advocacy Questionnaire (SCSAQ) to be used as an initial …

Investigating Individual Variability In Autistic Identity And Its Moderating Effects On Mental Health And Quality Of Life, Sydney Richelle Terroso

Theses and Dissertations

The autistic community has long voiced the mental health of autistic adults as a key clinical and research priority. Autistic identity, or the recognition and embrace of core autistic traits as integral to an individual's identity as a whole, may be a potential target for therapeutic approaches aimed at supporting well-being and quality of life. The current study investigates individual differences in self-reported autistic identity scores by demographic factors and by features of autism and health history using online survey data from N=225 autistic adults. Additionally, with a subset of the participants who completed an interconnected study of current mental …

Social Comparison Target Selections As Health Information Preferences: Exploring Contextual Influences Among Women In Midlife With Elevated Risk For Cardiovascular Disease, Emmanuel Lapitan

Theses and Dissertations

Insufficient physical activity (PA) heightens the risk of chronic illnesses including cardiovascular disease (CVD), particularly among women in midlife with conditions such as hypertension. Behavioral interventions often use psychoeducation and skills training to increase PA, but how individuals interact with health-relevant information and how this relates to daily PA behavior is unclear. Health information preferences vary between individuals, but whether they vary for the same individual across contexts has been understudied. In particular, the role of contextual factors in predicting social comparison (i.e., evaluating oneself relative to others to obtain information about oneself) are not well understood. The purpose of …

From "Proletariat" To President:The Educational History Of Dr. Cleveland L. Sellers, Jr., Franklin J. Gause

Theses and Dissertations

The focus of my study is the life of Dr. Cleveland L. Sellers, Jr. as a Black activist educator. Using oral history interviews, autobiographical, and biographical resources, alongside a thorough examination of Sellers’ (1973) published works, speeches, and archival materials, I explore how his formative experiences and his experiences as a student activist during the 1954 - 1968 Civil Rights Movement shaped his understanding of education as a tool for liberation. Sellers was a prominent figure in the Civil Rights Movement in the United States. He later became a faculty member in the History department and the chair of the …

Clusters In The Storm: Regional Economic Specialization Before And After Hurricane Harvey, Gwyneth King Waddington

Theses and Dissertations

In recent years, large-scale disaster events have dominated headlines. As the world faces an increasing number of such disasters, it is crucial to understand their impacts beyond immediate monetary losses. Disasters not only directly impact individuals and businesses but may also reshape the spatial patterns of the regional economy. Through a case study of Hurricane Harvey in Texas and Louisiana, this study examines how disaster events influence regional economic specialization patterns and contribute to uneven impacts across economic supersectors and geographies. Expanding on previous methodologies, this study incorporates temporal analysis tools to identify and investigate case studies of economic change. …

Cultural Competency Of Teachers And Its Effect On Their Instructional Practices, Martin Sims

Theses and Dissertations

Core content teachers at S Middle School participate in a study that reveals how increased cultural competency levels among 7^th-grade core content teachers positively influences their instructional practices. The increased cultural competency led to a more inclusive and effective learning environment across all core content areas. Throughout the study, teachers reflected on their own cultural identities while also considering the diverse cultural backgrounds of their students in each class period. As a result, teachers gained a deeper understanding of how cultural factors shape students' learning experiences and needs. The participants adjusted their teaching strategies to better connect with …

Statistical Power To Detect Simultaneous Violation Of Proportionality In Hazards And Additive Assumption In Cox Regression Model, Lawrence Mensah Agbota

Theses and Dissertations

The Cox proportional hazards regression model is a widely employed semi-parametric tool in epidemiological and medical research for analyzing time-to-event data and assessing the relationship between patient survival times and one or more predictors. This method involves regression analyses necessitating a meticulous approach to careful examination of the covariates and the relationship among covariates included in the model through a series of critical decisions and steps. Violation of the additivity of the effects and the proportionality in hazards (PH) assumption can lead to biased results and misleading scientific findings. We conducted a Monte Carlo simulation study to assess the performance …

Understanding Wildfire Risk Perception, Evacuation Readiness And Preparedness Information Awareness In The United States, Dominic Kyei

Theses and Dissertations

Wildfires disproportionately threaten lives, properties, and ecosystems within the U.S. states.Despite varying regional risks and demographic vulnerabilities, factors shaping public preparedness remain understudied. This study analyzes data from the 2023 Federal Emergency Management Agency (FEMA) National Household Survey (NHS), consisting of 507 participants, to identify key predictors of wildfire risk perception, evacuation readiness, and preparedness awareness across diverse demographic groups residing in high-risk states, including California, Arizona, and Florida. Using independent sampled t-test, ordered logistic regression analysis and correlation modeling, the study results indicate that past wildfire experience, preparedness efforts, geographic location, and perceived efficacy shape risk perception, with experienced …

Cytidine Triphosphate Specifically Modulates Parb-Mediated Dna Compaction: Insights From Single-Molecule Analysis And Parb C-Terminal Lysine Mutagenesis, Lois Akosua Serwaa

Theses and Dissertations

ParB is a central player in bacterial chromosome segregation, and cytidine triphosphate (CTP) is known to modulate its DNA compaction activity. This study explored whether CTP’s regulatory effect is due to specific molecular interactions beyond its known CTP-binding pocket. Using single-molecule flow-stretching and TIRF microscopy, we showed that CTP significantly reduces DNA compaction by wild-type Bacillus subtilis ParB, while ATP has no effect, supporting the hypothesis that CTP acts through specific recognition rather than general charge. CTP’s modulatory effect persisted across C-terminal domain (CTD) lysine mutants. Compaction was reduced in wild-type and K255A but abolished in K252A and K259A. The …

A Study Of Quasigroups, A Computational Approach On Isotopism And Isomorphism Hierarchical Structure, Runaldo Montrose

Theses and Dissertations

Quasigroups morphism classification can present a real computational challenge. As of today, the number of quasigroups that can be generated from a finite set S of cardinality n is known for very small value of n. Though we know the number of quasigroups for small n, generating them in real time is a whole other issue that leads to a bigger challenge of building their isomorphy classes, because the algorithm used required large computing memory resources. In this paper we will expose the computational complexity of constructing their hierarchical morphism structure from isotopism to isomorphism. As an improvement, …

Electrocatalytic Degradation Of Methylene Blue Using Graphene Oxide, Antimony Oxide, And Graphene Oxide-Supported Antimony Oxide Ink-Based Electrodes, Maria Irene Myers Armas

Theses and Dissertations

This study investigates the electrocatalytic degradation of methylene blue (MB) using copper mesh electrodes coated with graphene oxide (GO), antimony oxide (Sb₂O₃), and their composite (GO/Sb₂O₃). These materials were evaluated across a pH range of 2 to 8 using sodium sulfate as the supporting electrolyte. UV-Vis spectroscopy at 665 nm confirmed dye degradation, with removal efficiencies reaching up to 95% at pH 2. However, degradation decreased at higher pH, with 40 – 60% removal at pH 8, depending on the electrode. Kinetic analyses revealed optimum performance under acidic conditions. GO/Sb₂O₃ electrodes demonstrated the most consistent and effective performance across all …

Foxo Factors’ Ability In Binding To And Inducing Tcf7 In Glioblastoma Cells, Stephanie Oyervides

Theses and Dissertations

Glioblastoma Multiforme (GBM) is an aggressive astrocytoma tumor type with a poor prognosis and limited immunotherapeutic options for those inflicted. Stem gene expression of this cancer indicates a direct relationship with the transcription factors, Forkhead box subfamily O (FOXO-1, -3 and - 4). These transcription factors are evolutionarily conserved, partially redundant. They are involved in diverse and fundamental biological processes such as cell survival, stem cell homeostasis, cell fate determination, cell cycle maintenance, metabolism, and apoptosis. Increasing evidence suggests interconnectivity between the WNT Pathway and FOXO transcription factors; however, the mechanism and full extent to which these interactions play a …

Predicting Enzyme-Substrate Association Using Heterogeneous Knowledge Graph, Jannatul Ferdaus

Theses and Dissertations

Phosphorylation and dephosphorylation are dynamic processes that control many aspects of cellular activity, such as metabolic pathways, cell cycle progression, and signal transduction. Protein activity and interactions are modulated by the reversible addition or removal of phosphate groups, which allows cells to react abruptly to evolving conditions. Although kinase-specific phosphorylation site prediction has advanced, phosphatase-specific dephosphorylation site computational prediction is still a major obstacle that prevents us from fully comprehending the extent of cellular regulation. In this study, we constructed a knowledge graph for the prediction of enzymes (kinases and phosphatases) and their associated substrates with specific phosphosites. As part …

Sequential Data Modeling Of Influenza A Via Traditional, Dwt-Gpr Hybrid, And Deep Learning Architectures, Edmund Fosu Agyemang

Theses and Dissertations

Influenza A is responsible for 290,000 to 650,000 respiratory deaths a year, though this estimate is an improvement from years past due to improved sanitation, healthcare practices, and vaccination programs. In this study, we perform a comparative analysis of traditional, deep-learning and discrete wavelet (DWT)-Gaussian Process (GP) hybrid models to predict Influenza A outbreaks. Using historical data from January 2009 to December 2023, we compared the performance of traditional ARIMA and ETS models, four variants of DWT-GPR models and six distinct deep learning architectures: Simple RNN, LSTM, GRU, BiLSTM, BiGRU and Transformer. The results reveal a clear superiority of all …

Oxytocin As A Possible Vegf Inhibitor For Treatment Of Diabetic Retinopathy, Daira Yepez

Theses and Dissertations

Diabetic retinopathy (DR) is a major complication of diabetes and a leading cause of vision loss largely driven by the overexpression of vascular endothelial growth factor (VEGF), which promotes neovascularization and vascular permeability in the retina. Current treatments, primarily anti-VEGF injections, inhibit the effects of VEGF once it has been secreted but can be ineffective in a certain subset of patients. Recent studies suggest that oxytocin (OXT), a neuropeptide mainly known for its roles in reproduction and social bonding, may downregulate VEGF expression. This study aimed to investigate whether OXT influences VEGF secretion in the human retinal pigment epithelial (RPE) …

Optimization Of Thermoelectric Energy Harvester To Power Wireless Onboard Bearing Health Sensors During Rail Service, Danna Cecilia Capitanachi Avila

Theses and Dissertations

This work presents the optimization of a thermoelectric energy harvester designed to supply power to a wireless onboard bearing health monitoring device for critical freight rail components. The study demonstrates an enhancement in the circuitry through the integration of an energy management subsystem (E-Peas AEM20940), which features a boost converter with lower self-start voltage. The harvesting system was tested on dynamic bearing test rigs to closely replicate field service conditions. Test plans were conducted using common freight speeds and loads to simulate a representative urban route. The thermoelectric energy harvester was able to operate at temperature differentials as low as …

The Impact Of Students' Attendance On Their Academic Success: A Ypar Study, Quennella Smith

Theses and Dissertations

Youth participatory action research (YPAR) is a collaborative research approach that empowers students to examine issues affecting their lives and communities. This action research aimed to investigate the relationship between students’ attendance and academic success on middle school students, focusing specifically on eighth-grade students based on the theoretical framework of the critical race theory (CRT) in education and the self-determination theory (SDT). Three research questions were explored related to the impact of students’ attendance on their academic success: 1) What do students consider factors that lead to their poor attendance? 2) How do students feel they can be supported in …

The Use Of Threat Assessment Protocols In K-12 Schools On Disciplinary Outcomes For Students With Disabilities, Natasha Lynn Mcdonald

Theses and Dissertations

School personnel utilize the BTAM process to investigate threats of violence made by students through identifying, assessing, and managing potentially dangerous situations. This process is not intended to be disciplinary in nature, and previous studies conducted have shown that when a BTAM model is implemented, students who make threats toward others receive fewer suspensions or other types of removal as a result of the threat; however data on threat assessment outcomes has not been conducted in South Carolina. The purpose of this study was to examine administrators' knowledge and perceptions of BTAM models and perceptions of discipline outcomes for students …

Novel Approaches To Combat Neuro-Degradation: Investigations Of Two Supplemental Strategies Aimed At Improving Warfighter Performance, Blaine Lints

Theses and Dissertations

This dissertation examines the efficacy of two distinct nutritional supplementation strategies for improving physical and/or cognitive performance under stress. The first study investigated the effects of 150 mg caffeine plus 150 mg theacrine ingestion in tactically trained individuals. Results indicated that the combination of caffeine and theacrine was associated with significant improvements in reaction time, accuracy, and measures of ocular control following high-intensity interval (HII) exercise. The HII exercise protocol consisted of ten repetitions of 60s high-intensity intervals (≥90% maximal oxygen uptake [VO_2max]) followed by 120s low-intensity intervals (~40% VO_2max) on a treadmill. These benefits were …

Hearing The Unheard: Creating A Brave Space To Analyze The Experiences Of Men Of Color In Student Service Roles And Their Mental Health Challenges Within Higher Education, Calvin Maurice Joyner

Theses and Dissertations

This study analyzed the experiences of five men of color in student service roles dealing with mental health stressors, such as discrimination, workplace burnout, tokenism, and low morale. To highlight their experiences, a brave space was utilized as an intervention. The following questions were examined and answered within this qualitative, action research study: (1) What are the experiences of men of color with mental health challenges in student service roles? (2) How do mental health problems affect the personal and professional lives of men of color in student service roles? (3) How do the brave spaces impact the mental health …

In Their Own Words: How Standardization Shapes Student Learning Experiences, Jessica Cantley

Theses and Dissertations

This qualitative action research study explores how students perceive and experience standardized and elective educational environments in a rural, Title I high school in the U.S. South. Through semi-structured interviews and focus group discussions with seven diverse participants, the study investigates student-defined learning objectives, motivation and engagement across different classes, and youth perceptions of valuable learning experiences. The research is grounded in constructivism, applying feminist theory and critical race theory as lenses to challenge power dynamics and promote equality in education.

Findings confirm the problem of practice that inspired the study by revealing a contrast between students’ experiences in standardized …

Information Literacy In Charter Schools: An Institutional Ethnography, Katherine Klein

Theses and Dissertations

A strength of US charter schools is their opportunity to carve out an educational niche. Without the same regulation and district control present in traditional public schools, a charter school’s approach can seriously impact how the school addresses information literacy. In our current culture, we are saturated with media and technology, and students learn about navigating, evaluating, and using information responsibly and creatively at school. However, there is currently no published research on how charters do this critical work with their students, particularly with fewer libraries and librarians in the sector. This study uses institutional ethnography to map ruling relations …

Integrating Ensemble Hydrologic Forecasts With Policy Optimization Models For Forecast-Informed Reservoir Operations (Firo), Alessandra Estefania Perez Salas

Theses and Dissertations

Effective reservoir management in hydrologically variable regions such as California’s Central Valley faces increasing pressure to balance flood control, water supply reliability, hydropower generation, and ecosystem health. Traditional rule-based operations, while operationally simple, often lack the adaptability required to respond to real-time hydrologic conditions and forecast uncertainty. This study presents an integration of a policy tree optimization model with ensemble streamflow forecasts to enhance Forecast-Informed Reservoir Operations (FIRO) at Folsom Reservoir. Building on historical data for inflow, storage, and release, an interpretable, threshold-based decision framework was developed and coupled with 14-day ensemble inflow forecasts from the California-Nevada River Forecast Center’s …

Getting Poked (Lovingly) With A Stick: A Study Of Parental Involvement During First-Year Students’ College Transitions, Mary Ellis Glymph

Theses and Dissertations

In recent years, some higher education professionals have observed an increase in parental involvement in the lives of their students during their transition to college. While involved parents are sometimes referred to as “helicopter parents,” this new generation of parents often fits more into the label of “snowplow parents” or “lawnmower parents.” This sort of over-involvement impacts students’ personal and academic development far beyond high school graduation; during college, students can struggle to adjust to new levels of academic rigor, but they can also struggle with self-confidence and internal motivation due to their lack of experience with addressing their own …

Separate But Not Equal: A Sequential Explanatory Mixed Methods Study Of Adjunct Structural Empowerment, Experiences, And Perceived Needs In A Midwestern Community College, Shauna Sowga

Theses and Dissertations

Higher education institutions are increasingly reliant on contingent or gig-based labor in the form of adjunct faculty. Adjunct faculty make up the majority of community college faculty, yet they tend to receive the least support, resources, and training investments from colleges. This is no different at Metro Community College, a large, urban college in the Midwest. The problem of practice for this study revolves around Metro Community College social sciences adjunct faculty’s needs for support, resources, and training to do their jobs effectively. This sequential explanatory mixed methods study examined these adjuncts’ structural empowerment, experiences, and perceived needs for support …

Cultivating Smiles On The Frontier: The Making Of Brazil’S Soybean Capital And Community Building In Sorriso, 1980-2020, Nathalia Francio Cocenza

Theses and Dissertations

This dissertation explores the transformation of Sorriso, a small municipality in Mato Grosso, Brazil, into one of the world's leading soybean producers, placing its local history within the broader context of global agricultural and economic shifts from 1980 to 2020. Sorriso represents the unique convergence of local, regional, and international forces that reshaped Brazil's agricultural landscape. This study critically examines the political, environmental, and social dynamics that positioned Sorriso at the forefront of soybean production, illuminating the town's transition from a remote frontier settlement to a global agribusiness hub.

Through a detailed analysis of previously unstudied archival sources, interviews with …