Digital Commons Network^™

Warriors Of Faith Vs Passive Men: Gender Binarism And Performance In Evangelical Christian Masculinity, Alexander Koch

Theses and Dissertations

My thesis examines communications and reflections of self (gendered and religious) in Midwest Evangelical Christian men. The focus was on how these groups perform their gender and religion with each other, and the tactics that were used to reinforce an acceptable notion of masculinity. Drawing upon literature on gender and masculinity studies, feminist philosophy, and hierarchical systems, my project aimed to analyze acceptable gender performance pushed by patriarchal gender norms and evangelical Christian groups. I incorporated multiple settings in my ethnographic study across the Midwest. Methods included semi-structured interviews and participant-observation of men’s conferences and Christian men’s groups, while reflecting …

Exploring Childcare Leaders’ Perspectives On Program Philosophies At The Intersection Of Care, Education, And Business: A Multi-Method (Qual + Qual) Study Using Simon Sinek’S Golden Circle, Megan Kybartas

Theses and Dissertations

This multi-method (QUAL + qual) study explores childcare leaders’ perspectives on program philosophies at the intersection of care, education, and business, which I call The Childcare Tripartite. Recognizing the significant dependency on high-quality childcare services and the foundational role of program philosophies in achieving this quality, this research addresses a notable gap in the literature regarding how early childhood leaders communicate and prioritize their program philosophies within the complex American childcare landscape. Employing semi-structured interviews, documentary materials, and demographic forms, and analyzed through both thematic and deductive content analysis, drawing on Simon Sinek’s Golden Circle, the study uncovers how philosophical …

Converting Cover Crop Biomass To Biogas And Volatile Fatty Acids, Tuba Yasmin Lubna

Theses and Dissertations

Cover crops are commonly used for their environmental benefits, including improved soil health and reduced soil erosion. However, there is limited use for the aboveground biomass, except for oilseed crops. The objectives of this study were to (1) characterize the selected winter cover crop biomass at three growth stages, (2) evaluate the biogas and volatile fatty acids (VFAs) yield, and (3) examine the concurrent alkali pretreatment and ensiling effects on biogas yield. Wild pennycress, golden pennycress, CoverCress^TM, annual ryegrass, cereal rye, pea, and clover biomass were harvested at three growth stages. Results showed that biogas yield increased with …

The Role Of Ethnic-Racial Centrality On Exposure To Microaggressions And The Mental Health And Academic Success Of Second-Generation Latiné Adolescents, Lisette Munoz

Theses and Dissertations

People holding racially minoritized identities are frequently subjected to racial-ethnic microaggressions, a form of everyday racism and discrimination. Acculturative stress and microaggressions have a direct impact on immigrants' mental health (Gee et al., 2007; Finch & Vega, 2003; Hovey, 2000). The increase in conservative immigration policies has led to increased anti-immigrant sentiments and microaggressions (Sissoko & Nadal, 2021). The impact of microaggressions can detrimentally affect psychological and physiological wellbeing, as well as academic performance and cognitive function (Solórzano & Pérez Huber, 2020). Because of their experiences with discrimination, Latino children may become more aware of biases in their social interactions …

Genetic Relative-Finder Services: A Qualitative Study Of Consumer Experiences, Sarah A. Sciba

Theses and Dissertations

Background: Genetic genealogy is an emergent topic in sociology. To date, over 41 million individuals worldwide have tested with the top four direct-to-consumer genetic testing (DTCGT) companies: AncestryDNA, FamilyTreeDNA, 23andMe, and MyHeritageDNA (Glynn 2022). These tests provide consumers with ethnicity estimates, a list of DNA cousin matches, or both. Despite the popularity of DTCGT, there is a lack of data on consumer experiences with genetic relative-finder services (GRF) in the sociological literature. Methodology: I conducted exploratory, qualitative research in the form of in-depth interviews with eight adult women who have used GRF. I gathered data about their motivations for participation …

Understanding The Influence Of A University-Based Reading And Literacy Center Literacy Tutoring Program On Students’ Literacy Behaviors, Beliefs, And Skills: Stakeholder Perspectives, Wanda D. Turk

Theses and Dissertations

A convergent mixed-methods study designed with a networked systems theory framework investigated the influence of a university-based reading and literacy center literacy tutoring program on students’ literacy behaviors, beliefs, and skills. The study examined stakeholder perspectives of changes in students following their participation in the literacy tutoring program. A convergent mixed-methods design collected and analyzed quantitative and qualitative data separately before merging for interpretation. Quantitative data came from students’ pre-assessment scores and post-assessment scores. The results indicated that students’ scores increased, decreased, or remained the same from pre-assessment to post-assessment. Qualitative data came from tutor interviews and parent surveys. The …

Enacting Change In Student Support Services To Meet The Needs Of Evolving Student Demographics, Justin Schuch

Theses and Dissertations

This qualitative study examined the change management leadership strategies employed by Chief Student Affairs Officers (CSAOs) to address the needs of an increasingly diverse student population at midwestern institutions of higher education. The change management leadership strategies employed by seven CSAOs to address the mismatch between the increasing diversity of college student populations and the institutions’ readiness to meet these students' diverse needs were drawn from using in-depth interviews, review of enrollment data, and institutional planning documents. The three research questions guiding this study yielded four major themes. The first theme is related to how CSAOs identify areas for development …

“The New Force”: The Rhetoric Behind Nana Kwame Bediako's Masked Campaign, Emmanuella Ama Gyamfi

Theses and Dissertations

This study examines Nana Kwame Bediako’s unconventional masked campaign in Ghana’s 2024 presidential election using Norman Fairclough’s three- dimensional Critical Discourse Analysis (CDA). The research analyzes how Bediako employed anonymity through a masked persona on billboards before revealing his identity as a strategic political innovation. The study examines two key moments: Bediako’s unveiling speech after the government of Ghana cancelled his planned convention event, and his subsequent televised interview with JoyNews. The analysis reveals how the mask functioned as a complex symbol that generated public curiosity, challenged Ghana’s NPP- NDC political duopoly, and connected pan-African identity. Through the textual, discursive …

Strata: Layered Support Through Community, Resources, & Design, Jenna M. Sawyer

Theses and Dissertations

Strata reimagines transitional housing as a layered, responsive ecosystem that supports the holistic well-being of individuals experiencing housing insecurity. Inspired by the vertical structure of a forest canopy, the design integrates biophilic principles, trauma-informed strategies, and sustainable practices to create a dignified, inclusive environment. Located in the historic Sauer’s Factory in Richmond, Virginia, the project leverages adaptive reuse to ground the building in local context while addressing systemic gaps in supportive housing. Public amenities, such as a hygiene center, café, learning spaces, and a free store, encourage community integration and reduce stigma, while flexible private units and calming retreat spaces …

Identification Of Pharmacophore Modifications That Enhance Bmp-Receptor Agonism, An Investigation To Understand The Development Of Potential Therapeutic Interventions, Maleka T. Stewart

Theses and Dissertations

Bone morphogenetic proteins (BMPs) are the largest subfamily of the Transforming Growth Factor (TGF)-ß superfamily. BMPs are renowned for their pivotal role in cellular functions such as cell growth, apoptosis, and differentiation. Yet, BMPs have also been attributed to the maintenance of adult tissue homeostasis. BMPs elicit physiological function at the cell membrane via a heterotetrameric complex composed of two Type I and two Type II serine-threonine kinase BMP receptors. Activation of BMP transmembrane receptors results in activation of either canonical (Smad-dependent) and/or non-canonical (Smad-independent) signaling. Given the physiological importance of this intricate communication between receptor activation and induction of …

The Moderating Role Of Personality In The Relationship Between Cognitive Ability And Counterproductive Work Behaviors, Sarah Jacobsen

Theses and Dissertations

Counterproductive work behaviors (CWBs) are negative behaviors that detract from an organization’s goals and cause harm to the organization and to those involved. The current study investigated cognitive ability and personality as predictors of CWB and explored a moderating role of personality on the cognitive ability-CWB relationship. The results found no significant relationships for cognitive ability and personality with self-reported CWBs. Additionally, personality did not moderate the cognitive ability-CWB relationship. An exploratory analysis revealed significant relationships between personality and supervisor-rated CWBs, but no significant relationship for cognitive ability nor significant cognitive ability-personality interactions were found. The current study challenged previous …

The Choice Process Of A Higher Education: Latine College Women And The Effects Of Marianismo, Karina Trujillo

Theses and Dissertations

Latine women have significantly increased their enrollment in higher educational institutions throughout recent years. Castillo and colleagues (2010) developed the Marianismo Belief Scale centered around five pillars: “Family,” “Virtuous and Chaste,” “Subordinate to Others,” “Self-Silencing to Maintain Harmony,” and “Spiritual.” The purpose of this study is to (1) provide insight into how Latine women make the vital decision to attend college and (2) explore how marianismo may limit or act as a protective factor. This study interviewed 12 Latinx college women who shared their experiences on how the role of marianismo impacted their decision regarding their college choice process. Content …

Exploring The Relationship Between Athletic Identity And Academic Resiliency Through A Life Skills Transfer Lens., Lilla Kisvari

Theses and Dissertations

The purpose of this study was to examine and explore the relationship between athletic identity and academic resiliency. This is an exploratory study with three research questions: 1) How do Athletic Identity and Academic Resilience correlate? 2) What are the latent classes that exist between Athletic Identity and Academic Resilience? 3) How do these latent classes differ in terms of their academic and athletic characteristics?

The study utilized secondary data which were collected in 2020 and included a total of 489 participants. The participants completed the Athletic Identity Measurement Scale (AIMS) and the Academic Resiliency Scale (ARS-30). Findings revealed that …

Enterprise Social Media And Employee Engagement: A Study Of Internal Public Relations, Daniel Sherrick Apambila

Theses and Dissertations

Workplace communication technology remains a tool for effective internal public relations practice in a postmodern business environment. Understanding how workplace communication tools function to enhance employees’ engagement, the role they play in forming employees’ perception of the company while fostering employees’ sense of belonging, when they are performing their organizational roles are critical to talent retention, sustained business operations, and maintaining organizational success in a competitive marketplace. However, research on the types of content posted on workplace communication platforms, and how the content shape intra-organizational members’ perception, while instilling a sense of belonging in their technical performance at the workplace …

Next-Gen Device For Uniform Cellular Migration Assay Execution, Nicholas M. Bittner

Theses and Dissertations

Cellular migration assays, particularly scratch assays, are pivotal in biomedical research for cell motility, wound healing, and metastasis. However, conventional scratch assays suffer from variability due to operator dependence, non-uniform scratch geometry, and a modified microenvironment that impacts reproducibility. This thesis presents the development and validation of a low-cost, 3D-printed device designed to standardize cellular migration assays. The device utilizes a spring mechanism and a biocompatible elastomer to create a uniform cellular exclusion zone without harming the surrounding cells. Through iterative prototyping and testing with MCF10A cell lines, the device demonstrated a significantly lower average standard deviation of length compared …

Hybrid Energy Storage Systems For Renewable Integration: Combining Batteries, Supercapacitors, And Flywheels, Tanwa Morohunkeji Iwayemi

Theses and Dissertations

Renewable energy integration into existing power grids is crucial for a sustainable future, but its intermittency poses technical challenges to grid stability and reliability. Hybrid Energy Storage Systems (HESS), combining lithium-ion batteries, supercapacitors, and flywheels, offer a promising solution by leveraging the complementary strengths of these technologies. This study explores optimal configurations of HESS using HOMER Pro software and a theoretical analysis approach to establish unified mathematical models for the three storages with constraints to address various operational scenarios, including normal operation, absence of renewable sources, and component failures. The proposed system integrates an Energy Management System (EMS) using a …

Comparative Study Of Robotic And Manual Welding For Energy Consumption And Efficiency In A High Mix, Low Volume Manufacturing Environment, John Ruprecht

Theses and Dissertations

This study examines the comparative efficiency and energy consumption of manual versus robotic welding in high-mix, low-volume (HMLV) manufacturing environments. Traditional robotic welding systems have been predominantly used in low-mix, high-volume production due to their efficiency in repetitive tasks. However, the advent of collaborative robots (cobots) has democratized robotic automation for diverse manufacturing needs. Cobots allow flexibility in programming, enabling their deployment in HMLV environments characterized by hard product variety and smaller batch sizes. This research evaluates energy consumption, welding speed, and quality metrics across manual and cobotic welding systems. Data were gathered using energy meters and video analysis, focusing …

Synthesis And Characterization Of Additive Manufactured Functional Composites For Biomedical Applications, Alexander Thorne

Theses and Dissertations

This dissertation investigates the synthesis and characterization of 3D printed polymer composites, with engineered porosity and both natural and synthetic additives, using fused deposition modeling (FDM) and selective laser sintering (SLS) for potential biomedical applications. The structural, mechanical, tribological, and surface behavior of these composites were evaluated with respect to their suitability for orthopedic load-bearing implants and scaffolds. In the first phase, PEEK-based composites reinforced with 10 or 20 wt% carbon fibers or 20 wt% E-glass fibers were fabricated using FDM with varying infill densities of 30-100% to introduce porosity. Results revealed that loading additives, infill densities, and porosity play …

Leveraging Distributed Semantics From Deep Learning Architectures For Literature-Based Discovery, Clint A. Cuffy

Theses and Dissertations

Literature-based discovery (LBD) is a scientific process that introduces methods to automatically identify novel insights between non-interacting sets of literature. To date, numerous statistical and machine learning-based methods have been applied in the biomedical domain to find treatments for diseases such as Raynaud's disease, Parkinson's disease, and Multiple Sclerosis. However, the lack of standardized practices and creation of bespoke methodologies produces a scenario where the adoption of LBD remains challenging in real-world systems. Our work addresses these concerns through the improvement of five critical areas: 1) error propagation within LBD's a priori dependent tasks, 2) exploring the integration of modern …

Enhancing Irs Localization Via Ml-Driven Aoa And Distance Estimation, Nikhila Kotlapara Surendran

Theses and Dissertations

Intelligent Reflecting Surfaces (IRSs) are transforming next-generation wireless networks by enabling dynamic control of the propagation environment for improved localization and security. This thesis advances Angle-of-Arrival (AoA) and distance estimation in IRS-assisted systems using a hybrid architecture with active sensing and passive reflecting elements. A modified MUSIC algorithm, optimized for near-field localization, decouples 2‑D AoA and 1‑D range estimation using a grid-and-peak pseudo-spectrum scan, achieving sub-degree AoA (0.003 rad) and sub-meter range (0.05 m) accuracy with over 100× lower complexity than classical 3D MUSIC.

The study further applies the algorithm to the DeepMIMO dataset (O1_28 scenario, 3.5 GHz) using …

Beyond Homogeneity: Exploring Causal Heterogeneity In Psychopathology, Philip B. Vinh

Theses and Dissertations

Traditional models in psychiatric research often impose assumptions of causal homogeneity, treating population-level associations as reflective of uniform underlying mechanisms. This dissertation challenges that assumption by introducing statistical and machine learning frameworks designed to detect and model causal heterogeneity in the development of psychopathology. Central to this approach is the advancement of finite mixture structural equation modeling (FM-SEM) to identify latent subgroups characterized by distinct, and sometimes opposing, causal pathways.

The dissertation comprises three integrated empirical studies. The first introduces mixDoC, a finite mixture extension of the classical Direction of Causation (DoC) model applied to twin data, enabling the detection …

Persistence Of Southwestern White Pine (Pinus Strobiformis) In An Ever-Changing Environment, Shruti Shrivastava

Theses and Dissertations

Abstract

Local adaptation is known to occur in multiple tree species, with climate as a main force for it occurring, indicating adaptation and changes occurring in spatially and temporally changing climates. With increased climate change, the question now is what future persistence may appear as, and by what magnitude trait mismatch may occur. This is observed in southwestern white pine (Pinus strobiformis) for drought-response traits: resistance (RT), recovery (RC), and resilience (RS). Using previously collected data, the genetic and phenotypic diversity were analyzed. Using that information, the trait values for individuals where only genetic data was known was …

Diversification Of Avifauna In The Darién Highland Region: Ecological Niche Modeling, Phylogeography And Morphology To Explore Speciation In The Montane Species Myadestes Coloratus, Chlorospingus Tacarcunae And Margarornis Bellulus., Jorge L. Garzon Vasquez Mrs

Theses and Dissertations

Montane regions in the Neotropics are hotspots of endemism and biodiversity, yet their species are especially vulnerable to the impacts of climate change and geographic isolation. This thesis investigates the evolutionary and ecological dynamics of three bird species endemic to the Darién Highlands of eastern Panama: Myadestes coloratus, Chlorospingus tacarcunae, and Margarornis bellulus. Through an integrative approach combining ecological niche modeling, morphometric analysis, and genomic data from ultraconserved elements (UCEs) and mitochondrial DNA, the study explores the historical biogeography, current distribution patterns, population structure, and phenotypic differentiation of these montane taxa. Ecological niche models revealed that suitable habitat …

Mctr3 Mitigates Cigarette Smoke-Induced Pulmonary Inflammation And Damage, Yu Par Aung Myo

Theses and Dissertations

Smoking is deleterious to our lungs and can precipitate in a multitude of diseases, including chronic obstructive pulmonary disease (COPD). COPD is primarily caused by smoking cigarettes and is a major public health issue. Current therapies only treat symptoms without halting or reversing disease progression, thus highlighting a large unmet need to develop new therapies. We address this gap by investigating maresin conjugate in tissue regeneration 3 (MCTR3) which is a newly discovered specialized pro-resoling mediator (SPM) that has the novel property of promoting tissue repair and regeneration in addition to being anti-inflammatory and pro-resolving. For the first time, we …

Why People Stay: Factors Contributing To Staff Retention In Community Mental Health Clinics, Brianna D. Boggs

Theses and Dissertations

The current behavioral health crisis is exacerbated by a crisis in the behavioral health workforce. Recruiting and retaining workers in behavioral health has become a challenge, making access to services for those needing them even more difficult. This study aimed to examine which factors have the strongest influence on an employee’s work engagement and decision to remain employed at their current organization. This study used Aarons et al.’s multilevel, multiphase implementation model (2011), with a focus on inner contextual factors as a means to help inform potential interventions to address the factors and improve retention. This study also applied the …

The Role Of Context Sensitivity On The Association Between Racial Discrimination And Emotional Dysfunction Among Black American Adolescents, Summer C. Bryant

Theses and Dissertations

Black adolescents are at an increased risk of experiencing racial discrimination due to a developmental period marked by increased time away from parents and caregivers and increased time with peers (Fisher et al., 2000). Empirical research has shown that Black adolescents’ experiences of racial discrimination are associated with emotion dysfunction (Benner et al., 2018; Seaton et al., 2009; Sellers et al., 2006). Although previous research has identified racial factors such as racial socialization and racial identity as protective factors by reducing the impact of racial discrimination on Black adolescents’ emotion dysfunction (Gibson et al., 2021; Neblett et al., 2008), we …

Modeling The Impacts Of The Current And Projected Temperatures On Spongy Moth Population Dynamics, Adrienne B. Spring

Theses and Dissertations

The spongy moth (Lymantria dispar) is an invasive forest pest that has caused significant ecological damage across the United States. Its invasion front is shaped by a number of factors, including temperature in both the northern and southern regions. With ongoing climate change, areas that were previously uninhabitable may become increasingly favorable for moth population establishment and expansion, while other areas may experience thermal stress limiting persistence. This study develops a temperature-driven population model to analyze how temperature affects the spongy moth population dynamics along the invasion front. This model incorporates temperature effects on fecundity, stage-specific survival rates, …

Predictive Inference For Ion Concentration With Machine Learning And Bayesian Methods, Alexandra B. Ulbing

Theses and Dissertations

Ultraviolet--visible (UV--Vis) spectroscopy produces high-dimensional signals that are strongly collinear, shift with concentration, and exhibit heteroskedastic, non-Gaussian noise. These features make supervised regression from spectra to ionic concentrations statistically challenging and limit the reliability of methods that assume linear structure or homoscedastic errors.

This dissertation develops two complementary frameworks for prediction and uncertainty quantification in UV--Vis spectroscopic regression: (1) frequentist stacked ensembles combined with distribution-free conformal prediction, and (2) Bayesian hierarchical modeling and Bayesian stacking. Together, they provide a unified view of model-based and distribution-free uncertainty across nickel and nickel--cobalt datasets.

The frequentist component builds ensembles of Functional Data Analysis …

Plza Rna Chaperone Activity In Borreliella Burgdorferi Is Modulated By C-Di-Gmp, Dhara T. Patel

Theses and Dissertations

Lyme disease (LD) is the most common arthropod-borne disease in North America and is caused by the spirochete, Borreliella burgdorferi. LD spirochetes are maintained in an enzootic cycle of Ixodes species ticks and a vertebrate reservoir. The secondary messenger molecule c-di-GMP plays a crucial role in adaptive responses during the enzootic cycle. PlzA is the sole c-di-GMP-binding protein identified to date that is encoded by all Borreliella burgdorferi isolates. PlzA has both c-di-GMP-dependent and c-di-GMP-independent functions and is required to complete the enzootic cycle. The full range of PlzA regulatory activities has yet to be fully defined. We determined …

Tate Speech: Radicalizing Rhetoric And Multi-Level Marketing Recruitment Strategies In The Manosphere, Carey J. Priebe

Theses and Dissertations

My study aims to uncover the discursive elements behind the gendered recruitment strategies that influencers in the manosphere use to pipeline men and boys into their multi-level marketing (MLM) companies. In the manosphere, male supremacy is presented as desirable and subversive, and MLMs take advantage of emotional and economic instability. My study examines the Twitter (X) account of the popular manosphere influencer Andrew Tate as I trace his rhetoric along a three-pronged gendered recruitment framework, a framework originally developed around women selling essential oils online and funneling their followers into radical alt-right politics. What are the similarities and differences in …