Digital Commons Network^™

Meeting Battery Electric Vehicle Demand With A Focus On Throughput Capacity Across The Transport Nodes In The Upstream Cobalt Supply Chain, Nicholas J. Visconti

Dissertations

This study assesses whether cobalt transport capacity in sub-Saharan Africa is sufficient to support projected battery electric vehicle (BEV) demand under the Paris Accord. Using open-source data from ArcGIS, the Highway Capacity Manual, and the World Bank, the analysis applies a simplified linear programming approach to estimate the maximum throughput of the primary transport corridor connecting the Democratic Republic of the Congo to the Port of Durban. The model identifies significant constraints along the Rutenga-to-Beitbridge segment, reducing network capacity to an estimated 42,494 tons of ore per day. When converted to refined cobalt, this capacity falls well short of the …

Exploring Lessons In Research: A Survey On Parental Perceptions Of Reading Opportunities, Laura Kettlehut

Dissertations

Problem

This exploratory study examines how parents’ past reading experiences relate to their perceptions of their children’s current reading opportunities across home and school contexts. Grounded in longstanding literacy research, the study explores how parent‑led, educator‑led, and child‑initiated reading experiences collectively shape children’s literacy development.

Method

Two research questions guided the inquiry: (1) How do parents perceive their own past reading opportunities? and (2) How do they perceive their children’s reading opportunities at home and in school? To address these questions, a 41‑item survey was developed and administered to parents of children enrolled in K–8 schools. The instrument measured two …

Generative Ai Professional Development Program For Higher Education Instructors, Sheena Bahra

Dissertations

As technology progresses and brings enhanced forms of artificial intelligence (AI), such as generative AI (Gen AI), it continues to affect education by introducing opportunities and challenges in its application to higher education teaching. Advances in technology can make instructors reluctant to use applications, leading to missed learning and skill-development opportunities for higher-order thinking skills. This study investigates how AI professional development (PD) training can influence higher education instructors’ willingness to use Gen AI in the classroom. This study employed a qualitative instrumental case study design informed by an exploratory lens. The study investigated instructors’ use of Gen AI in …

The Effects Of Bilingual Services In Adaptively Leading Shared Parishes, John Patrick Cahill

Dissertations

Shared parishes are churches that have services in more than one language. Pastors struggle with how to lead, unify, and pastorally respond as populations shift and demographics change. One-third of the Catholic parishes in the United States have Mass in more than one language every Sunday. Leaders need to adapt by exploring bilingual services as a way to be more effective and inclusive. This descriptive quantitative study examined three blocks of parishioners at a particular shared parish: (a) those who attend Mass in English, (b) those who attend Mass in Spanish, and (c) those who attend the bilingual Mass. A …

Student Wellness: Exploring The Role Of Faculty In Implementing Effective Supports For Mental Well-Being And Academic Performance In Community College Dental Hygiene Education, Bernadette Heather Smith

Dissertations

Purpose: The purpose of this phenomenological, comparative study was to identify and describe effective supports used by dental hygiene faculty and their role in the mental well-being and academic performance of community college dental hygiene students.

Methodology: Two Southern California community college dental hygiene programs were selected for this phenomenological study to identify the use of faculty supports. A purposeful sampling strategy was applied to these populations to identify participants in specific selection criteria. Twenty-one participants, who consisted of five faculty members and five or six 2nd-year students from each school, were selected. Data were collected by conducting individual interviews …

Emotional Intelligence And Self-Efficacy In Relation To Turnover Intention: The Mediating Role Of Job Satisfaction And Organizational Commitment In Faith-Based K–12 Education, Nestor Osorio

Dissertations

Problem

Leadership turnover remains a significant challenge within faith-based K–12 educational systems, affecting organizational stability, school culture, and long-term institutional effectiveness. Although previous studies have examined turnover intention in educational leadership, limited research has explored how emotional intelligence and principal self-efficacy relate to turnover intention through organizational attitudes such as job satisfaction and organizational commitment within faith-based educational settings. Additionally, little empirical research has focused specifically on educational leaders serving within the North American Division (NAD) of Seventh-day Adventist schools. This study examined the extent to which emotional intelligence, principal self- efficacy, job satisfaction, and organizational commitment are associated with …

Recruitment Of Black Minority Community Into Irish Police: Evaluating The Dynamics Of Culture In Decision-Making., Adeyemi Adekanle

Dissertations

Ethnic and racial diversity in police services has been a focus for criminologists and policing scholars for some considerable time. But despite intense efforts, most multicultural societies still struggle to get Black minority communities recruited into their police services. Two widely held interconnected assumptions appear to be at issue. The first is that police occupational culture, which has been shown in some studies to be prejudicial, is, in many cases, blatantly racist. This may well be a catalyst or “push factor” in discouraging members of Black communities in particular from taking up police careers. The second is that members of …

Match Or Mismatch? : The Effects Of Fingerprint Evidence And Expert Testimony On Jury Decisions, Kassie N. Thallas

Dissertations

Fingerprint evidence is widely perceived as objective and reliable, yet is typically presented to jurors through expert testimony rather than directly evaluated. The present study examined how fingerprint match status and expert testimony influence juror decision-making. Participants (N = 225) read a mock criminal trial summary and were randomly assigned to one of five conditions. Four conditions were derived by crossing Expert Condition (fingerprint expert alone vs. conflicting experts) and Match Status (match vs. no match), with an additional control condition without fingerprint evidence. The participants made verdict decisions and rated the credibility, honesty and believability of the expert. The …

Exploring Detached Concern, A Dual-Process Emotional-Regulation Strategy, Among Intensive Care Nurses Providing End-Of-Life Care In The United States, Melissa Milton Miasek

Dissertations

Intensive care unit (ICU) nurses repeatedly provide end-of-life care (EoLC) and experience significant emotional distress, burnout, and moral distress that can lead to leaving the profession. Detached concern (DC), a dual-process emotional-regulation strategy which balances empathetic concern with emotional detachment, may support ICU nurses' emotional well-being; however, DC among nurses remains vastly understudied. This qualitative descriptive study gained deeper understanding of DC among ICU nurses providing EoLC in the United States. The study was guided by a conceptual model adapting Lampert and Glaser's dynamic DC process within Elfenbein's emotional regulation framework. The overarching research question explored ICU nurses' perspectives on …

Comprehending Levels Of Explainability And Ai Recommendations (Clear) Study Series, Virginia Sullivan

Dissertations

AI systems can offer a great deal to improve decision-making through efficiency and predictive accuracy due to their unique ability to rapidly analyze large amounts of data relevant to the decision. Yet many AI systems remain opaque, limiting users’ ability to evaluate outputs and leading to issues of mistrust or over-reliance. This dissertation investigates how varying levels of AI explainability affect trust, perceived reliability, understanding, and confidence, and identifies perceptual and behavioral indicators of over-reliance behavior in AI-assisted decision making scenarios. This dissertation is organized as a three-study series. The CLEAR survey study uses a mixed design to examine the …

Identifying And Prioritizing Essential Healthcare Services For A Private Start-Up Healthcare Hub In Laxmipasha, Bangladesh, Ferdous Ara Mostofa

Dissertations

This quantitative study identifies and prioritizes essential healthcare services for developing a private start-up healthcare hub in Laxmipasha, Bangladesh, a rural community with significant gaps in healthcare access. Using secondary data from national and international sources, the research analyzed disease burden, population characteristics, and service availability to determine the most urgent health priorities. A structured, evidence-based framework was used to evaluate services based on mortality and morbidity, service gaps, and potential health impact. The findings indicate that Maternal and Child Health (MCH), Non-Communicable Disease (NCD) management, and infectious disease control represent the most critical priorities for initial implementation. The study …

Perception Matters: A Case Study Exploring How Belief Systems Affect Family-School Partnerships And Family Literacy Initiatives In A Title I School, Kwtay Calvin

Dissertations

Family-school partnerships have been shown to have positive effects on students’ overall performance in school. However, in many instances schools have not used partnerships effectively to support literacy learning, particularly for Black families. Teacher bias, negative perceptions, and lack of cultural responsiveness hinder teachers’ effort to build meaningful relationships with Black families to best support family literacy. This qualitative study aimed to examine family-school partnerships through the experiences of school principals, teachers, and Black families to gain insight into the factors that impact collaborative relationships and family literacy support. This study is framed in critical race theory, the theory of …

Leadership Studies In The Master Of Divinity (M.Div.) Curricula Of The Southern Baptist Convention (Sbc) Seminaries, Todd Stinnett

Dissertations

This dissertation chronicles the pursuit of an answer to the following question: In what ways have Southern Baptist Conventions (SBC) seminaries incorporated leadership studies into the curricula of their Master of Divinity (M.Div.) programs? This dissertation is a qualitative, multi-site case study that utilized a descriptive method of research. The research also utilized a qualitative interview that asked seminary administrators about their understanding of leadership studies and the place of those studies in the leadership courses that each seminary provided. One administrator from each of the six SBC seminaries was interviewed for this research. Content analysis was used to discover …

Constructing Effectiveness: Culture, Legitimacy, And Strategic Planning In Zoos And Aquariums, Robin Keith

Dissertations

Zoos and aquariums are complex organizations operating with multiple mandates—saving species, providing exceptional care to animals, connecting communities with nature, and inspiring environmental action—making “effectiveness” difficult to define. What counts as success depends on who is asked and which goals are foregrounded. This study investigated how stakeholders in Association of Zoos and Aquariums (AZA)–accredited organizations conceptualize and operationalize effectiveness within strategic planning processes. Prior research on nonprofit and mission-driven organizations has shown effectiveness is multidimensional and often defined differently by various stakeholders. However, little has been known about how these definitions are negotiated through the practice of strategic planning, …

Exploring Drivers And Barriers To S.M.A.R.T. Goal Implementation: A Phenomenological Study Of Exemplary K-5 Public Elementary School Teachers, Rochelle Davies

Dissertations

Purpose: The research aimed to explore how exemplary K-5 public elementary school teachers in Southern California perceive the factors that support or hinder S.M.A.R.T. goal implementation, as well as their suggestions for sustaining these practices in their classrooms. This study also examined how teachers who successfully implement S.M.A.R.T. goals experience the process of using them to promote academic clarity, strengthen student ownership, and foster long-term achievement.

Methodology: The research design used qualitative phenomenological methods to collect and analyze data. Nine K-5 teachers from public elementary schools in Southern California were purposefully selected based on specific criteria. Semistructured interviews served as …

Synthesis And Characterization Of Poly(Γ-Benzyl-L-Glutamate) By Infrared Absorption And Diffusion-Ordered Nmr Spectroscopy, Leah C. Johnson

Dissertations

Acquiring the molecular weight of a polymer is not a trivial task due to the differing degrees of chain growth within a sample during synthesis, leading to a molecular weight range instead of a single value. Popular methods that estimate a polymer’s molecular weight include proton nuclear magnetic resonance, gel permeation chromatography and mass spectrometry; however, these methods have drawbacks like molecular weight limitations, dispersity limitations and column dependencies. Since poly(amino acid)s are used in biomedical research, developing a harmonizing set of molecular weight characterization methods is crucial. Two novel methods for estimating the molecular weight by infrared absorbance and …

Exploring Cultural Competence Of Alabama Nurse Educators : A Mixed Methods Study, Rachel Bloodworth

Dissertations

Cultural competence is a vital skill in nursing practice and nursing education. Nurse educators must be able to teach this concept and prepare students to provide culturally competent care to patients. This study examined the cultural competence of Alabama pre-licensure nurse educators in associate degree nursing (ADN) and baccalaureate (BSN) programs and explored their perceptions of cultural competence's role in nursing education. An explanatory sequential mixed-methods design was employed, guided by Campinha-Bacote's Process of Cultural Competence in the Delivery of Health Care Services Model. In Phase I, 51 nurse educators completed the Cultural Diversity Questionnaire for Nurse Educators-Revised (CDQNE-R) and …

Exploring Pregnancy-Related Empowerment And Person-Centered Prenatal Care In Black Pregnant And Postpartum Women In Alabama, Lauren Milam

Dissertations

Black women in the United States experience disproportionately high rates of maternal morbidity and mortality and often report feeling unheard, dismissed, or excluded from decision-making during pregnancy and childbirth. Understanding how Black women experience prenatal care and how those experiences relate to empowerment during pregnancy is essential for improving care and addressing persistent inequities. This study examined the relationship between person-centered prenatal care and pregnancy-related empowerment and explored Black women’s prenatal care experiences in Alabama using a sequential Quan → QUAL mixed methods design. In the quantitative phase, relationships among person-centered prenatal care, pregnancy-related empowerment, and care-related factors were examined …

Human Perceptions Of Social Intelligence In Large Language Models, Derek Koehl

Dissertations

This dissertation investigates how users form perceptions of social intelligence and trust when interacting with large language model chatbots. Three experimental studies manipulated chatbot agreeableness, goal orientation, and simulated short-term memory, measuring perceived social intelligence and trust. The primary finding is an asymmetric effect of personality: disagreeable chatbot behavior produced large reductions in perceived social intelligence and trust, whereas agreeable behavior produced negligible gains above a warm baseline, consistent with negativity bias in social cognition. Goal orientation did not independently enhance perceptions but functioned as a contextual moderator. Simulated memory produced medium-to-large increases in perceived social intelligence without reliably increasing …

Sharing Patient-Generated Health Data With Electronic Health Record: A Standardised Provenance And Context-Rich Information Model And Clinician Evaluation, Abdullahi Abubakar Kawu

Dissertations

With the advent of Patient-Generated Health Data (PGHD) through wearable, mobile, and home monitoring systems, there is immense potential for ongoing monitoring and patient engagement. But integrating PGHD with Electronic Health Record (EHR) is challenged by sub-optimal support for contextual metadata and its relevant elements, lack of semantic interoperability among disparate systems, poor knowledge regarding the factors that impact clinician acceptance, and absence of globally agreed standards for data exchange. This thesis explores how contextually relevant patient-generated health data can be shared with EHRs through a FAIR standardized information model that ensures semantic and syntactic interoperability.

The study addresses six …

A Proposed Conceptual Framework For Assessing Quality Of Life In The United Arab Emirates: Application To Ras Al Khaimah Emirate, Aaesha Saif Al Shehhi

Dissertations

Quality of Life (QoL) has become a central concern in urban planning and sustainable development, particularly in rapidly transforming contexts such as the United Arab Emirates. This dissertation proposes and empirically validates a comprehensive framework for assessing urban QoL, with a focused application to the Emirate of Ras Al Khaimah. A mixed-methods approach integrates objective indicators and residents' subjective perceptions, aligned with national strategies including UAE Vision 2030, the National Strategy for Wellbeing 2031, and UAE Centennial 2071.

The methodology combines Geographic Information Systems (GIS), the Analytic Hierarchy Process (AHP), and statistical analyses to evaluate seven key sectors: environment, infrastructure …

A Qualitative Case Study Exploring The Processes And Criteria For Presidential Leadership Selection In Three United States Higher Institutions Of Learning, Gabriel Kofi Boahen Nsiah

Dissertations

Background of the Problem

Today, research on U.S. higher education presidential search processes is limited, and existing literature characterizes these searches as reactive postures that are secretive, closed-door practices that have not adapted to the early signals of external seismic change. According to Quincy Martin (2021), “the world has evolved (p. 99).” Therein lies the problem. Quincy Martin insists, “Higher education has entered a period of upheaval, aided by new technologies, but hampered by political and cultural shifts. These are only amplified by modern, warp-speed information-sharing practices. All of this has exacerbated the consequences of scandals that threaten the stability …

The Role Of Department Chairs In Supporting Student Learning Outcomes, Tommy C. Molden Jr

Dissertations

The purpose of this qualitative study was to examine high school department chairs’ perceptions of their role in relation to teacher leadership in achieving student learning outcomes.  The study adds significant implications for department chair training in the context of teacher leadership and the achievement of student learning outcomes.  Further, the study extends the literature on the importance of department chairs’ perceptions of their proficiency for adapting to and institutionalizing the role as teacher leader to increase student achievement.  Additionally, the study identified training strategies and resources that enhance department chair competence in teacher leadership for student achievement of learning …

Teacher Self-Efficacy Perceptions For Technology Integration And Social Media Use As Instructional Tools: Future Implications For Pedagogy In Trinidad And Tobago, Paula Edwards Sealey

Dissertations

Problem

As the educational landscape in Trinidad and Tobago evolve post COVID-19, gaining an understanding of the purpose of teachers in the implementation of national and ministerial ICT policies seem imperative. The exploration of teacher’s personal belief about their ability to effectively infuse technology and social media with their traditional teaching practices, may provide much needed insight about the role that teacher self-efficacy plays in this educational shift (Caner & Aydin, 2021; Phillip & Cain, 2015). Very few studies in the local and regional literature involve teacher self-efficacy as a variable of interest. Moreso, there has been no research to …

A Phenomenological Qualitative Study Of The Experiences Of Board Chairs Toward Governance In Seventh-Day Adventist Schools Across Canada, Shad Lehmann

Dissertations

Problem

There is limited understanding of how school board chairs within the Canadian Seventh-day Adventist education system perceive and carry out their leadership and governance roles. The role of the board chair is complex, involving oversight of the organization, adherence to denominational policies, and alignment with the school’s academic and spiritual missions. Although effective governance is vital for school success, there remains a lack of clarity about how board chairs interpret their roles, fulfill their responsibilities, and navigate the unique demands of faith-based school leadership. This gap in understanding restricts the system’s ability to provide appropriate training, support, and clear …

The Impact Of Culturally Diverse Student Populations On High School Mathematics Teachers’ Preparations And Practices In Southern Union Conference Of Seventh-Day Adventists, Carla Thrower

Dissertations

The Problem

Across the United States and within faith-based schools recent social and political currents have amplified tensions around culture and belonging in classrooms, particularly for students from racially, ethnically, linguistically, and socioeconomically diverse communities. Evidence indicates that when schooling practices overlook students’ cultural identities or normalize a single cultural frame, students can experience marginalization and reduced access to equitable opportunities to learn (Gay, 2018; Ladson-Billings, 1995; Milner, 2010). In mathematics, a subject often perceived as culture-neutral these dynamics may surface through curriculum choices, participation norms, and expectations that do not meaningfully connect to students’ lived experiences (Aguirre, Mayfield-Ingram, & …

Validation Of The Touch/Bonding Sense Of The Five Senses Model Of Intimacy As A Spiritually Based Whole-Person Lifestyle Approach To Intimacy In Dating And Marital Relationships, Karen J. Holland

Dissertations

Problem

Intimacy is in crisis and is being culturally defined and redefined through a number of influencing factors. These include the ongoing development of individualist and narcissistic relationships; the fragmentation of human wholeness; the influence of social media and an increasingly entertainment focused society; the permeation of technology influencing personal choice and lifestyle, including the use of generative AI; and the diminishing influence of Judeo-Christian principles and values as key drivers in the development of life-long marriage relationships. This study seeks to address the need for establishing a foundation for relational intimacy based on the biblical relationship demonstrated by God’s …

A Case Study Of California Postsecondary Faculty Collaboration On Rubric Development To Foster Student Learning, Emmanuel Kwadwo Frimpong

Dissertations

Although perceived as the ‘gold standard’ strategy for conquering complex problems, collaboration can be ignored by intellectuals who prefer to work independently. This oversight may occur even in the face of challenging problems such as assessment of scholarships, institutional effectiveness, strategizing, and even the crafting of effective rubrics for assessing student learning. The scholarly literature clearly reveals that real difficulties often refuse to respond to routine assignments or common bureaucratic patterns. Additionally, 21st century conflicts may require creative solutions involving interdependence, joining of forces and brains, or vision sharing. Effective assessment of student learning within higher education may reflect just …

The Influence Of Black African American Fathers’ Parenting Styles On Young Adult Children’S Attachment Styles: The Roles Of Gender And Fathers’ Residence, Robert Baptiste Thompson

Dissertations

Parenting

Black African American (BAA) fathers in the United States are frequently mischaracterized as absent or uninvolved, reinforcing deficit-based narratives rooted in historical and systemic racism. Such portrayals obscure the meaningful and sustained roles many BAA fathers play in their families and fail to account for the cultural, structural, and contextual conditions that shape paternal involvement and parenting practices. Although a growing body of research has documented the importance of father involvement for child development, comparatively limited empirical attention has been given to how BAA fathers’ parenting styles influence their children’s attachment—particularly as a function of fathers’ co-residency histories. This …

Associating Emotional Intelligence, Cultural Intelligence, And Inclusive Leadership: A Correlational Study Of Seventh-Day Adventist Pastors And Church Leaders In Canada, Damson Anim Oppong

Dissertations

Problem

In an increasingly polarized world, church leaders are expected to foster inclusion, belonging, and unity within diverse congregations. Inclusive leadership (IL), supported by emotional intelligence (EQ) and cultural intelligence (CQ), may offer a relational leadership posture well-suited to this challenge. Growing evidence suggests that relational qualities such as EQ and CQ help leaders develop inclusive communities, foster belonging, and bridge differences (Thomas & Inkson, 2017; Wise, 2022). Emotional and cultural intelligence are studied increasingly in organizational settings, but little is known about how they affect inclusive leadership in faith-based institutions, such as among pastors and church leaders in the …