Digital Commons Network^™

Temporal Dynamics In Spatial Random Field Theory: A Methodological Advance In Fmri Data Analysis, Theophilus Barnabas Kobina Acquah

Dissertations

Functional magnetic resonance imaging (fMRI) is a noninvasive tool for studying neural correlates of cognition by measuring task-evoked brain activity. Accurate interpretation of fMRI data depends on modeling the hemodynamic response (HR), which varies across brain regions and conditions. Brain plasticity adds complexity as functional changes during development and aging affect cognition, emotion, and behavior. BOLD signals display complex temporal dynamics influenced by both neural and physiological factors, challenging conventional models. This highlights the need for adaptive frameworks that account for temporal dependencies and spatial heterogeneity in neural activity detection. This current study enhances fMRI data analysis by integrating temporal …

The Bass Clarinet Works Of Jonathan Russell And Pedagogical Guide Of Extended Techniques Used In His Compositions, Heather Chelsea Gering

Dissertations

Jonathan Russell is one of the most prolific composers and performers of the twenty-first century and has made significant contributions to the bass clarinet repertoire. An interview was conducted with the composer to yield information on his background, education, compositional process, and his thoughts on the techniques he has written. This dissertation provides a pedagogical guide to extended techniques found within Jonathan Russell’s bass clarinet compositions. This guide is based on the works of Russell, books, videos, blogs, articles, and my own personal experiences regarding the techniques required to properly perform Russell’s works. The study demonstrates written examples and explanations …

Exploring Contributions Of Partnerships Between Employers And Disability Organizations On Recruitment, Hiring, Training, Retention, And Accommodation Of Individuals With Disabilities In Mississippi, Peter Oluwadare Kalejaiye

Dissertations

The Americans with Disabilities Act (ADA) of 1990 provides equal employment opportunities for individuals with disabilities (IWDs) by prohibiting discrimination in employment. However, one out of four IWDs face discrimination in employment in the United States (U.S. Bureau of Labor Statistics, 2023). Additionally, despite establishing the Office of Disability Employment Policy and enacting the Workforce Innovation and Opportunity Act to help integrate IWDs into the workforce, IWDs face barriers to equal and equitable employment (NASEM, 2017). Previous studies recommend partnerships between employers and disability organizations (DOs) to provide employment opportunities and benefits for IWDs through recruitment, hiring, training, retention, and …

The Digital Incorporated Worker Narrative: A Mixed Methods Study Of Digital Capital, Work Selection, And Outcomes In The Fourth Industrial Revolution, Tracie King

Dissertations

Digital technology permeates society and industry, making digital-ready workers necessary for firms of all sizes as a firm seeks competitiveness in the market (Bergson-Shilcock et al., 2023; de Ruyter et al., 2018; Gorski et al., 2022; Karaboğa, 2023; Kim et al., 2017; Qureshi Zia, 2019). Firms seeking digital-ready workers face a complex digital divide that creates a worker shortage (Bergson-Shilcock et al., 2023; Karaboğa, 2023; Qureshi Zia, 2019). This study aims to describe workers' work selection, work experience, and outcomes in a complex digital society.

Most digital divide research focuses on the individuals excluded from owning, accessing, and having skills …

Federal Telework Intensity, Perceived Organizational Support, And Perceived Supervisor Support As Predictors Of Affective Commitment In A Post-Pandemic Environment, Jamaris Moore

Dissertations

The COVID-19 pandemic forced many governments to transition to non-traditional work such as telework (Lunde et al., 2022). However, in a post-pandemic environment, federal agencies required their employees to return to the offices (Office of Management and Budget, 2021), which led employees to agency hop, looking for more accommodating work arrangements (The Committee on Oversight and Accountability, 2022). Therefore, the researcher sought to determine if telework intensity (TI), perceived organizational support (POS), and perceived supervisor support (PSS) predicted employee organizational commitment (OC). The researcher used a quantitative correlational cross-sectional survey to assess 202 federal employees from two Department of Defense …

The Effect Of Implementing A Development Program Using Mental Imagery On The Time To Master Psychomotor Skills, Randal Agee

Dissertations

Psychomotor skills development programs that use mental imagery have been demonstrated to help individuals acquire psychomotor skills (Anu et al., 2020; Seymore-Walsh et al., 2020; Toth et al., 2020). The commercial trucking industry is presently experiencing a global shortage of qualified truck drivers (American Trucking Association, 2019; Staats et al., 2017). One reason individuals are avoiding or leaving careers as commercial truck drivers is the time spent away from home (Staats et al., 2017). A couple logistical strategies have been developed to improve the situation (Mittal et al., 2018; Prime Inc, 2024); however, for the solutions to be sustainable, the …

The Drawing Effect: Evaluating Drawing Method And Strategic Implementation On Recall Accuracy, Jacob M. Namias

Dissertations

Drawing images of to-be-remembered word’s reference often improves memory for the word relative to a control in which the word is written or read silently, a pattern dubbed the drawing effect. Drawing effects have been recorded in a variety of contexts and are generally more beneficial than other deep/elaborative encoding tasks. My dissertation compared recall for words that are drawn by copying a given image versus generating a drawn image without copying, and in study contexts in which the proportion of drawn items is disproportionally skewed. Experiment 1 gauged whether drawing effects differ relative to writing when participants draw an …

Solution Of Preconditioned Nonsymmetric Saddle Point Systems Through Modified Conjugate Gradient Iteration, Samson Ayo

Dissertations

In this dissertation, we present an iterative method (Preconditioned Nonsymmetric Saddle Point Conjugate Gradient) for simultaneously solving forward ($A{\bf x}={\bf b}$) and adjoint ($A^T{\bf y}={\bf g}$) linear systems. Our approach involves constructing an augmented nonsymmetric saddle point matrix that has a real positive spectrum and developing a conjugate gradient-like iteration for this matrix. We investigate the use of Schur Complement preconditioners with block-diagonal factorization computed by an incomplete QR factorization of $A$ to speed up the convergence of our method and compare the results to the preconditioned generalized least squares residual (GLSQR) and quasi-minimal residual (QMR) methods. We develop quadrature …

Examining The Moderating Role Of Work Modality On Employees’ Engagement And Perceptions Of Inclusion, Eric Shapiro

Dissertations

In the evolving landscape of work, organizations increasingly adopt diverse modalities, including on-site, remote, and hybrid arrangements. This quantitative correlational study examines the relationship between work modalities, employee engagement, and perceived inclusion, with a focus on the moderating role of work modalities. Recognizing employee engagement as a key driver of organizational performance and perceived inclusion as essential for well-being and innovation, survey data were collected from 402 employees across multiple industries. Results revealed a strong, positive correlation between perceived inclusion and employee engagement (r = 0.789, p < .001). Work modality significantly moderated this relationship, with hybrid workers experiencing a weaker inclusion-engagement link, while remote workers showed no significant moderation effect. Additionally, on-site workers demonstrated a robust inclusion-engagement relationship. Hybrid workers reported higher perceived inclusion scores, though engagement levels remained consistent across modalities. These findings underscore the need for tailored inclusion strategies to optimize employee experiences and enhance organizational effectiveness. This study provides actionable insights for fostering inclusive workplace cultures and improving employee well-being in modality-diverse environments.

Simulating Interactions Between (Remote) Internal Waves And The Background Flows And Topography Of The U.S. West Coast, Oladeji Siyanbola

Dissertations

This dissertation focuses on the simulation of remotely and locally generated semidiurnal internal tides (ITs) and near-inertial waves (NIWs), and how they interact with the California Current System (CCS) and the U.S. West Coast (USWC) topography. In Chapter II, we force Regional Ocean Modeling System (ROMS) simulations of the CCS with tides and remote internal waves (IWs) originating from as far as Hawaii, using a realistic global HYbrid Coordinate Ocean Model (HYCOM) simulation. To allow for optimal wave energy influx and minimize boundary reflections from the interior of the domain, we conduct boundary sensitivity tests on tide and IW forcing …

Examining Non-Academic Staff's Perceived Value Of Professional Development On Job Satisfaction And Anticipated Turnover In Higher Education, Elnora Lewis

Dissertations

One of the most important assets in an organization is its employees (Chong & Lee, 2017). Developing staff employees is critical in the university setting (Gornitzka & Larsen, 2004), in addition to satisfying and retaining them (Grohnert et al., 2021). Given today's volatile, uncertain, complex, and ambiguous (VUCA) world, staff development is more vital than ever in the workplace (Gibson, 2020). Higher education institutions should be concerned about employee's professional development (Gerken et al., 2016), not only academic staff but also non-academic staff. Additionally, organizations should ensure employees are satisfied by offering learning and development opportunities, which can contribute to …

Self-Perceived Employability And Employer Expectations Of Community College Students' Skill Gap In Industry 4.0, Cherri Wells

Dissertations

Industry 4.0, the fourth industrial revolution, is reshaping job competencies and careers through technological integration, impacting global competitiveness, information security, and skill requirements (Jackson & Tomlinson, 2020). This shift has heightened job uncertainties, competition, and the role of institutional policymakers in aligning higher education with labor market demands (Kornelakis & Petrakaki, 2020; Tan et al., 2023 Tomlinson, 2012). However, inconsistencies persist between employer expectations and graduates’ skills, making employability, a graduate’s ability to secure and sustain employment, more crucial than ever (Fugate et al., 2004; Otache & Edopkolor, 2022).

This study aims to conduct a sequential explanatory mixed-method study by …

Unraveling The Antiviral Mechanisms Of Bat Cells: Processing Of Genomic Rnas By Dicer In Bat Cells Limits Sars-Cov-2 Replication, Iyanuoluwani Owolabi

Dissertations

Bats are reservoirs for numerous viruses that cause serious diseases in other animals and humans. Several mechanisms are proposed to contribute to the tolerance of bats to these pathogens. This study investigates the response of bat cells to double-stranded RNA generated by SARS-CoV-2 replication. Here, we found the involvement of Dicer in the processing of viral genomic RNAs during SARS-CoV-2 infection. Examining RNA sequencing of infected cells, small-interfering RNA (siRNA)-like fragments were found derived from viral RNAs. Depletion of Dicer showed a reduction in these RNAs and an increase in viral loads suggesting unlike other mammals, bats may use Dicer …

The Examination Of Teacher Mentorship Design For Mentees, Cagla Cobek

Dissertations

Teacher stress has been documented as a problem for today’s educators. Improving teachers’ well-being through mentorship programs is promising in the literature. Therefore, this study examined a daily check-in mentorship program for teachers experiencing moderate stress. The researchers examined the changes in mentees’ daily stress levels, perceived stress, sense of self-efficacy, and use of proactive classroom management strategies. Mentees and mentors were also asked to complete ratings of the social validity of the mentorship program. Three mentees and mentor dyads working in an elementary and middle school in a Southeastern school district in the USA participated. A nonconcurrent Multiple Baseline …

Here Be Dragons: The Barriers Of Korean American Female Leaders In Secondary Schools, Joyce A. Kim

Dissertations

In K-12 public schools, there is a shortage of Korean American women in school leadership roles at the secondary level. This phenomenological study explores the contributing factors to this lack of representation, how institutions can recruit and retain Korean American female leaders, and how school systems can better support them. This study examines the leadership experiences of eight Korean American women. It utilizes the socio-political contexts of Korean patriarchy, the Model Minority Myth, and mentorship to help frame the problem of existing barriers. This study explores the following questions: What factors hinder Korean American women in school leadership? What structural …

Shades Of Families: Exploring Intersectionalities Of Cross-Cultural Parenting Experiences In The U.S., Shu-Han Huang

Dissertations

As multiracial and multicultural families continue to grow across the United States, parents must navigate evolving cultural identities, systemic inequities, and increasing social and emotional pressures. These realities underscore the need for parenting resources that are both culturally responsive and emotionally supportive. This transcendental phenomenological study explored the lived experiences of 11 cross-cultural parents raising children in the U.S., with a focus on how intersecting identities and systemic forces shape parenting practices.

Guided by Critical Multiracial Theory and Intersectionality Theory, this study investigated parenting at the personal, familial, societal, and structural levels. Data were collected through semi-structured interviews and analyzed …

Nurturing Students: A Qualitative Case Study Analyzing The Perceived Impact Of Tiered Mental Health Support For Elementary Students, Mallori Victoria Sage

Dissertations

In this qualitative case study, I explored the perceived impact of providing tiered mental health support to elementary students. I developed Randall Elementary Nurtures, or The Nurture Program, a flexible yet structured initiative grounded in a multi-tiered system of support (MTSS) model to provide intentional and scaffolded mental health support for elementary students. The purpose of this instrumental case study was to examine The Nurture Programs' perceived impact from the viewpoint of the program stakeholders, including students, parents, teachers, administration, the school counselor, and the school’s MTSS team. To understand the program’s impact during the pilot program years of 2022-2023 …

Hispanic/Latinx Faculty Members’ Experiences Within Academia, Sarah Muñoz

Dissertations

This dissertation research was written and pursued to explore the experience of Hispanic/Latinx faculty within academia. A phenomenological, qualitative methodology was utilized to explore this phenomenon. The researcher used listservs, Facebook groups, and snowball sampling to recruit participants. Potential participants completed a prescreening questionnaire and were then contacted to participate in the interview portion of the study. Ten individuals thoroughly described their experiences holding a Hispanic/Latinx faculty identity within academia. The following six themes emerged from data analysis of the interviews: a) Impacts of the Lack of Representation of Diverse Faculty, b) Challenging Experiences of Hispanic/Latinx Faculty, c) Positive Experiences …

Understanding The Cybersecurity Knowledge And Cybercrime Experiences Of Older Adults Using A Learning Game, Richard Conrad West

Dissertations

The purpose of this case study was two-fold. First, it was intended to evaluate the effectiveness of teaching internet safety to older adults through a fun, internet-based learning game. Second, it was carried out to understand the experience of internet fraud on older adults so that fraud prevention techniques can be refined and tailored to the online threats they face. Five adults over 60 who were previously online fraud victims participated in this study, which was carried out over three phases.

First, participants played a learning game that assessed their understanding of key cybersecurity topics, provided lessons explaining the risks, …

Franz Schubert’S Composition Process Seen Through His Autograph Manuscripts, With A Focus On The “Arpeggione” Sonata, Ahmad Kandari

Dissertations

This scholarly inquiry provides an in-depth analysis of Franz Schubert’s distinctive approach to music composition, offering a nuanced understanding that emerges from a detailed examination of his manuscripts. By placing a special emphasis on the autographic evidence left behind by Schubert, this study contrasts his intuitive and rapid compositional style with the more methodical processes of his contemporaries, such as Ludwig van Beethoven.

Schubert’s manuscripts show a composer who often worked directly from mental concepts to full musical expressions with minimal reliance on detailed sketches or iterative revisions. This approach is starkly different from Beethoven’s, whose extant sketches display a …

The Paraprofessional-To-Teacher Experience: Moving From The Margins To Front And Center, Joanna Kerster Ross

Dissertations

This study outlined a qualitative case study research of paraprofessionals from marginalized communities. The purpose of this case study was to investigate the barriers that nontraditional students enrolled in the Metropolitan School of Teaching program experience when earning a teaching degree and working as a paraprofessional, as well as the sociocultural influence(s) that help them develop their teaching philosophy, with a focus on Culturally Responsive Pedagogy (CRP). Paraprofessional hiring pools have tended to be more diverse than teacher hiring pools and changing demographics across the nation could highlight the importance of CRP approaches in education (U.S. Department of Education, 2023; …

Evaluating The Indirect Effect Of Microaffirmations On Intersecting Marginalized Identities And School Sense Of Belonging Among School Psychology Graduate Students, April Pratt

Dissertations

There is a discrepancy between the proportion of school psychologists identified as racially, ethnically, or linguistically diverse (REL) in the United States and the proportion of REL students they serve (Blake et al., 2016; Proctor & Owens, 2019). Current data estimates over 80% of school psychologists identify as white (Goforth et al., 2021), whereas more than 50% of U.S. public school students have non-white racial/ethnic identities (Irwin et al., 2024). In addition to increased recruitment of REL students to school psychology graduate programs, trainers in these programs must implement effective strategies to ensure retention. One method is to increase students’ …

A New Approach: Supporting Traditional Jazz Pedagogy Through Neuroscience, Christopher John Navarrete

Dissertations

Jazz musicians face a considerable learning curve in their performance endeavors. Numerous factors must be taken into account, including performance anxiety, memorization, active listening, ear training, mastery of musical techniques, and improvisation. Through the effective preparation of these skills, musicians tend to achieve success; however, this success fundamentally relies on the practice habits of the jazz musician.

A common approach in jazz pedagogy emphasizes the development of musical techniques such as scales and chords, modulating across various harmonic progressions. I will define this as a “traditional approach” used in jazz pedagogy. This method has been widely embraced by jazz musicians …

Implementation Of Holistic Admissions Review In Associate Degree Nursing Programs: An Interpretive Description, Alisha Loken

Dissertations

Holistic admissions review (HAR) is a mission-based approach to selecting applicants for higher education using a combination of experiences, attributes, and metrics. The purpose of HAR is to diversify the nursing workforce and promote health equity. The purpose of this interpretive description was to examine HAR practices in ADN programs from the perspective of deans and directors and develop recommendations for broader implementation. The following research questions guided this study:

Q1 How do deans and directors of associate degree in nursing programs describe holistic admissions review?

Q2 What, if anything, have deans and directors done to implement holistic admissions review …

Lived Experiences Of Reintegration For Afghanistan Veterans Who Were Army Combat Medics, Matthew Argento

Dissertations

The purpose of this study was to examine the lived experiences, strengths, and challenges of reintegrating into civilian life for GWOT Army veterans who were medics. Three veterans completed in-depth interviews about their reintegration experiences. Results were organized into domains, core ideas, and categories. This study added to the existing literature on both combat medics and military transitions and suggests new areas of future research on combat medics and their transitions post-military.

Participants expressed feeling nervous about their reintegration, primarily due to their familiarity with the structured military lifestyle, anxiety regarding how much or little their family would need them, …

Efficacy Of A Novel Role-Playing Based In-Class Simulation On Enhancing Clinical Judgment Skills In Senior Baccalaureate Nursing Students, Melodie Jolly

Dissertations

Clinical judgment is a critical skill for nurses, directly impacting patient outcomes and quality of care. However, studies have shown that newly graduated nurses often lacked sufficient clinical judgment abilities to meet the demands of increasingly complex patient populations. This quasi-experimental study aimed to evaluate the efficacy of a novel role-playing based in-class simulation designed to enhance clinical judgment skills among senior baccalaureate nursing students. The study employed a single-group pre-assessment and post-assessment design using Lasater’s Clinical Judgment Rubric (LCJR) as the primary measurement tool. Using a convenience sample, 37 senior nursing students who enrolled in a Term 4 clinical …

Student Self-Assessment Of Learning To Foster Improved Self-Reflection Of Learning And Academic Achievement, Leann Renee Doerr

Dissertations

Throughout her career and most notably post-pandemic, the scholar practitioner observed an increase in students giving up when encountering rigorous academic content and assignments. During the research process, concepts of student agency and self-regulation of learning, which were new to the scholar practitioner, came to the forefront of skills her students either lacked or needed to improve upon. Empathy generators were gathered for participants at Context School #1, which led to Student agency and self-regulation of learning becoming the center of the intervention during the design thinking process. The Self-Assessment of Learning, created and modified during the design thinking phases, …

The Shifting Landscape Of Harm: Investigating The Phenomenon Of Concept Creep In Harm Perception, Jefferson Sherwood

Dissertations

Concept creep, the gradual semantic expansion of harm-related concepts (Haslam et al., 2020), is a phenomenon garnering increasing attention in the field of psychology and is examined in the context of shifting perceptions of what is considered harmful. While what is considered harmful has shifted throughout generations, why these shifts happen and what motivates society to accept these broadening definitions has yet to be explained. Up to this point individual differences such as activism, risk, empathy, stressful life events, and dark triad personality have yet to be investigated as potential contributors to the expansion of harm-related concepts. Thus, this group …

Unlocking Potential: How Disengagement And Reengagement Shape Performance And Well-Being, Asha Bradley

Dissertations

Task persistence can become problematic when individuals continue to perform challenging tasks unlikely to yield success. Instead, it may lead to frustration, burnout, and negative psychological outcomes. Recognizing when to disengage from these goals is essential for reallocating resources toward more attainable objectives by shifting focus to a new task rather than persisting on the same one. Ultimately, this promotes emotional well-being and resilience. No previous studies have experimentally examined the combined processes of disengagement and reengagement. This study investigates the temporal and causal effects of disengagement and subsequent reengagement with an alternative task, making it the first to experimentally …

Development And Validity Analysis Of The Pragmatic Assessment Of Role Transition And Onboarding For Midwives (Parto-M) Instrument: An Exploratory Study, Erin Mary Morelli

Dissertations

This exploratory study addressed the significant gap in research regarding the transition of newly qualified midwives to practice. The purpose of this study was to develop an instrument to identify the areas of strength and domains of challenge for new graduate midwives in their role transition to independent practice. The study sought to answer the following research questions:

Q1 What is essential to measure in an instrument assessing what is necessary for a new midwife to successfully bridge from education to orientation and onward after evaluation by new graduate midwives and subject matter experts?

Q2 What is the calculated content …