Digital Commons Network^™

Exploring Educator Burnout: Experiences And Perceptions Of Teachers And Principals In Canadian K-12 Seventh-Day Adventist Schools, David Anthony Elias

Dissertations

Problem

Burnout among educators is a growing concern, particularly within faith-based school systems where teachers often balance high professional expectations with spiritual commitments. In K-12 Canadian Seventh-day Adventist (SDA) schools, limited research has explored how burnout manifests, the factors contributing to it, and its impact on teacher retention. This study aimed to examine the levels and causes of burnout among SDA educators, as well as the systemic factors influencing their experiences.

Method

This study employed an explanatory sequential mixed-methods design. Quantitative data were collected using the Maslach Burnout Inventory – Educators Survey (MBI-ES) to measure emotional exhaustion, depersonalization, and reduced …

Navigating Big Data In Cyber Archaeology: An Updated Four-Field Approach Applied To San Miceli, Jared Wilson

Dissertations

Problem

This dissertation examines the evolving role of digital technologies in archaeological research, focusing on the management and interpretation of extensive digital datasets generated by modern excavations. Drawing on six years of comprehensive fieldwork at San Miceli, Sicily, this study critically evaluates and updates the established four-field methodology proposed by Levy et al. (2012), encompassing acquisition, analysis, dissemination, and curation. While traditional archaeological documentation methods rely heavily on analog techniques, these approaches increasingly fall short due to the rapid expansion and complexity of digital data.

Method

To address this gap, the dissertation refines and expands the current methodological framework by …

Perceived Social Support And Religious Attitudes As Correlates Of Spiritual Well-Being Among Senior Undergraduate Students At Northeast Brazil Adventist University, Hebert Davi Liessi

Dissertations

Problem

Even though the study of spirituality has been a recurrent theme in academia, in Brazil there has been little emphasis on the analysis of spiritual well-being in the context of university students. Few studies have examined the correlation of spiritual well-being with perceived social support or religious attitudes among university students, and most of these have been in the fields of health care or health recovery. Some research has indicated that religious attitudes may be partially disconnected from improvements in the level of spirituality. -- This study aimed to verify whether this disconnection is real or relevant, and assumed …

Assessment Of The Level Of Relevancy Of Theological Education In The Chinese Context, Jacky Yeung

Dissertations

Problem

The contextualization of theological education has been a topic of academic discussion for many years with scholars exploring various angles related to this subject. Despite the ongoing need for contextualized theological education, an assessment of its relevancy in the Chinese setting has not been extensively studied. This dissertation aims to fill this research gap by assessing the relevancy of Adventist theological education in China and providing recommendations for improvement.

Method

The study employs a mixed-method approach, combining both quantitative and qualitative research methods to gain a comprehensive understanding of the issue. The quantitative stage involves a survey administered to …

The Concept Of Israel In The Old Testament And Its Divine Purpose: An Exegetical And Theological Analysis, Gregory Arutyunyan

Dissertations

The aim of this study is to undertake a fresh look into the concept of Israel in the Old Testament and its divine purpose in the context of the overarching theology of the Hebrew Bible. The working method used in this research is a theological and exegetical analysis of relevant Hebrew text along with incorporating historical and socio-archaeological background studies.

The conclusion that is reached is that Old Testament Israel was a cosmopolitan community of people connected through biological links, intermarriage relationships, and political alliances. In a spiritual sense, the term Israel served as a characterizing title granted to Jacob …

The Inequitable Access: Black And Latinx Students In Ap Courses, Jean C. Woolcock

Dissertations

This study posits that in American high schools, the preparation of Black and Latinx students, starting from the freshman year, can be effective in helping to increase their participation in Advanced Placement (AP) courses. Structural inequities, in how schools are resourced, affect the ways in which Black and Latinx students are denied equal opportunities. On the contrary, members of their peers do obtain this kind of preparation. As a framework, Critical Race Theory (CRT) contends that race, the law, and power are deeply ingrained in maintaining established bastions of wealth and dominance. Gaps in opportunity and achievement spill over into …

Bilingual Latinx Adolescents Experiences In A Predominantly White Institution: A Mixed Method Study, Danieli Marie Mercado Ramos

Dissertations

Extent scholarship has provided insight into how Latinx adolescents actively experience exclusion. These adolescents are often the targets of microaggressions tied to their language (Gonzalez et al., 2018), ethnicity, race, and intersecting identities--such as being bilingual Latinx students--which serve as reminders that they do not belong. However, little is known about Spanish-English bilingual Latinx adolescents and how their heritage language plays a role in predominantly white spaces and institutions. This convergent parallel mixed methods study explored how Spanish-English bilingual Latinx students in the Midwest described their experiences in a predominantly white institution (PWI). A total of 42 Spanish-English bilingual Latinx …

Evolution Of Bacteria: The Subsequent Relationships Between Different Species And Their Hosts, Helen Appleberry

Dissertations

To explore the relationship between two recently identified bacterial species (S. anginosus and S. urinae), three aims were designed. First, niche ranges were identified via two metagenome databases. Different niche ranges were identified between the two groups. S. urinae was more specific to the urogenital tract. S. anginosus appeared to be present across human anatomical niches. Secondly, specific genes to the S. urinae group were identified. This gives insight into the genomic and phenotypic differences previously identified. Thirdly, a temporal study was created to view S. urinae in female urine over 8 weeks. This showed stability in the urinary microbiome …

Exploring The Ecological Relevance Of Biotic And Abiotic Stressors In Structuring Legume Microbial Communities, Cian Dotson

Dissertations

Heavy metal hyperaccumulation is prevalent throughout plant evolution, particularly in the legume family (Fabaceae), and acts as a presumed chemical defense against herbivory. However, heavy metal hyperaccumulation can have non-target impacts on other biological interactors including plant-microbe interactions. This information is important given the interest in utilizing hyperaccumulating plants for phytoremediation of anthropogenically contaminated soils. Here we employ a greenhouse experiment manipulating selenium level along with 16S rRNA gene amplicon sequencing methods to explore the effect of selenium on the prokaryotic microbiome of the selenium hyperaccumulator Astragalus crotalariae and non-accumulator Astragalus lentiginosus var. borreganus. Regardless of hyperaccumulator status, both plant …

Deciphering The Source Of Escherichia Coli In Urinary Tract Infections: A Comparative Metagenomic Analysis Of The Female Urogenital Microbiome, Alexis Annabel Avalos

Dissertations

In 2019, there was a 140.19% increase in deaths due to urinary tract infections (UTIs) compared to 1990, worldwide. One of the common uropathogens known to associate with UTIs in females is Escherichia coli. The prevailing belief is that E. coli in the bladder originates in the rectum, passing its way from the perineal, to the vagina, and finally into the bladder. Known as the Fecal-Perineal-Urethral (FPU) hypothesis, this “origin story” has been supported by several studies that have relied on genotyping or serotyping isolates collected from the bladder and rectum. Most notably, culturing isolates from samples has been central …

Selecting For Lysis In A Temperate Phage Population, Haley Atkins

Dissertations

The ongoing evolutionary arms race between bacteria and bacteriophages (phages) is a prime example of Red Queen hypothesis, where continuous adaptation drives survival. This study focuses on Escherichia coli-infecting temperate phages, which dominate natural environments and contribute to bacterial resistance mechanisms. Despite their prevalence, temperate phages are less suited for phage therapy due to their lysogenic life cycle, where they integrate into bacterial genomes instead of lysing the host. In contrast, obligately lytic phages, which directly lyse bacterial cells, are ideal for therapeutic use but occur less frequently in nature. This research aims to select for lytic behavior in temperate …

Reconceptualizing Christian Nationalism, Robert Stevenson

Dissertations

This thesis sets out to critically engage with existing research on Christian nationalism. It argues that current research suffers from a methodological focus that is too broad, and theoretical grounding that is too imprecise, both of which prevent researchers from grasping the full scope and intent of Christian nationalism, as imagined by Christian nationalists themselves. Drawing on data collected from X accounts (formerly Twitter) of Christian nationalist users, Christian nationalist podcasts, and Christian nationalist books, it employs qualitative content analysis, mapped to Bourdieusian field theory to provide a structured approach for the understanding complex data involving multiple spheres of power, …

Anti-Inflamatory Mechansim Of Bacillus Subtilis Derirved Exopolysaccharide, Adrian Taylor Ibarra

Dissertations

Exopolysaccharides (EPS) secreted by the commensal bacterium Bacillus subtilis exhibit potent anti-inflammatory properties, yet the underlying molecular mechanisms remain incompletely understood. We hypothesized that EPS reprograms antigen-presenting cells toward a tolerogenic state by modulating TLR4–MyD88 signaling. To test this, we began using a chemically defined, high-yield EPS production and purification protocol that largely eliminates protein and DNA contaminants, thus improving functional reproducibility across experiments using this new method. In vitro, EPS engaged TLR4 on murine dendritic cells (DC2.4) without inducing classical NF-κB activation, seen by LPS stimulation. Rather, EPS treatment upregulated inhibitory molecules, PD-L1 and PD-L2 while leaving activation markers, …

Investigating The Mechanism Of Resistance To Ido1 Enzyme Inhibitor Treatment In Human Glioblastoma, Kyla Shivakumar Hatton

Dissertations

Glioblastoma (GBM) is the most common and most aggressive form of adult cancer in the central nervous system, with GBM accounting for the majority of all malignant brain tumors. GBM is currently considered to be an incurable form of cancer, with over 14,000 patients diagnosed in the United States last year. Given the success of immunotherapy for treating other types of cancer, our group has investigated the possibility of therapeutically neutralizing immunosuppressive indoleamine 2,3 dioxygenase 1 (IDO1) in patients with GBM. Canonically, IDO1 is an immunosuppressive cytoplasmic enzyme that catalyzes the first step in metabolizing L-tryptophan into L-kynurenine (ie. ↓L-Trp→↑L-Kyn). …

Developing Chemically Defined Serum-Free Medium For Leukemic Blast And Stem Cell Expansion, Carmen Eva Finley

Dissertations

The relapse and chemotherapy resistance are the major challenges of acute myeloid leukemia (AML) treatment, driven by a rare population of leukemia stem cells (LSCs). LSCs are unique types of cells which evade standard chemotherapies and can regenerate AML post-treatment. Targeting LSC therapy remains limited, in part due to the lack of reliable in vitro AML culture systems to grow LSCs for drug discovery. This study aimed to engineer a chemically defined, serum-free 2D in vitro culture condition that supports either the expansion of leukemic blasts (LBs) or primary human LSCs by optimizing current protocols for hematopoietic stem cells (HSCs) …

“What’S Happening In The Gulf Of Maine?”: Middle School Students’ Engagement In Climate Science Through Data Visual Representation And Reflections, Grace Ocular

Dissertations

This study examined how middle school students engaged with science concepts while working with data visualizations during a field trip learning experience. Fifty-one teams of 2–4 students from 35 schools participating in the LabVenture program were video- and audio-recorded. Students completed two activities: one using a frequency table of marine species illustrating threats to Maine’s lobster population, and another using maps depicting changes in Gulf of Maine sea surface temperature. After each activity, students annotated the visualization, discussed their claims, and recorded short reflections. Transcripts were coded for science-related talk, and annotations and gestures were also analyzed. Findings indicate that …

Keep It In Your Pants: How Sexual Regulation Becomes Identity Regulation, Madelyn Shoemaker

Dissertations

White Evangelicalism has been studied quantitatively for many years; however, this article examines in-depth interviews with ex-congregants of a specific church located in Chicago. Building from Orit Avasai’s framework of “doing religion,” I argue that due to a high saturation of isolation, sexual regulation and patriarchal power, this specific church’s script of religious performance claims master status in individual identity building, leading to adverse effects in adulthood. Much of the rhetoric utilized to justify the intense regulation of identity mirrors that of the New Right movement of the 1980’s, as well as modern political discourse. This study will assist in …

"I'M Not Having Fun Anymore": A Qualitative Analysis Of Gender And Harassment In Bars And Clubs, Phoebe Marie Jackson

Dissertations

Sexual harassment, while often spoken about in hushed tones or ignored altogether, happens frequently and often loudly. 66 percent of women who have experienced sexual harassment report that the harassment took place in a public space, such as work, school, or on the street (Kearl, 2018). Harassment is not discreet, but rather normalized, and those who experience it are expected to brush it off or take it in their stride. However, such harassment and subsequent dehumanization has a deteriorating effect on the mental well-being of those affected (Graham et. al., 2016). This study aims to hone in on the effect …

Systematic Review Examining How Black Youth In The United States Cope With Stressful And Traumatic Experiences, Marcus Aaron Flax

Dissertations

Coping is an important behavioral skillset that youth use to emotionally regulate after experiencing stress or trauma. Research has repeatedly highlighted the stressors that Black youth experience, often finding that Black youth face higher levels of stress and trauma than their White peers. However, there has been a lack of research in understanding how Black youth cope with these higher levels of stress. This systematic review includes 72 studies (N = 16,205 participants) examining the frequency and effectiveness of coping strategies used by Black youth in response to a trauma or stressor, along with the associations between utilized coping strategies …

Voices Of Chinese American Emerging Adults: Complex Racial Identities, Family Dynamics, And Mental Health Experiences, Maxwell Lou Xu

Dissertations

Although Asian Americans are the fastest growing racial minority group in the United States, they remain significantly underrepresented in mental health research. Furthermore, research on Asian American mental health often aggregates the experiences of different Asian ethnic groups, creating a limited understanding of how distinct ethnic groups may differ in their mental health experiences. This interview study with Chinese American emerging adults ages 18–25 from varied family contexts (single-race, multiracial, and adoptive households) examines how members of this population make sense of the relationships between their identity, family, and mental health. This thesis posits that Chinese Americans' nuanced experiences—particularly around …

In-Person Versus Peer-Coordinated Virtual Health Coaching For Metabolic And Behavioral Outcomes In Women In Sober Living Facilities, Craig R. Witt

Dissertations

Background: Women in early recovery from substance use disorder often face metabolic health vulnerabilities, yet physical health behaviors are frequently under-emphasized in sober living settings. Feasible and accessible wellness strategies are needed to support both behavioral and metabolic health in this population.

Purpose: To compare the effects of professionally delivered in-person health coaching versus peer-coordinated virtual health coaching on metabolic outcomes and health-promoting behaviors among women in sober living facilities.

Methods: In this quasi-experimental study, 32 women enrolled in a 12-week group-based health coaching program focused on nutrition, physical activity, and stress management; 18 completed post-intervention assessments (in-person: n = …

Protein Ingestion And High-Intensity Resistance Training Decrease Respiratory Exchange Ratio Following Exercise In Females Across Various Body Compositions., Lynnsey Bowling

Dissertations

Metabolic dysfunction is associated with excess adipose tissue and interventions to elicit improvements to body composition could combat these health consequences. Acute nutritional and exercise strategies have the potential to shift metabolic processes toward those favoring fat oxidation. The purpose of this study was to investigate the effects of high-intensity resistance training (HIRT) and pre-exercise protein (PRO) ingestion on post-exercise respiratory exchange ratio (RER) in lean (LN) and overweight (OW) females. Twenty recreationally-active females (LN: n =10; OW: n = 10) completed two experimental sessions, consisting of HIRT and two acute nutritional interventions: PRO and placebo (PLA). RER was analyzed …

Astaxanthin Supplementation Does Not Significantly Alter Cognitive Performance Following Mental Fatigue In Females, Gavin A. Barker

Dissertations

Mental fatigue (MF) is a psychobiological state caused by prolonged periods of demanding cognitive activity, often characterized by impairments to cognitive performance. Astaxanthin (AX) is a naturally occurring antioxidant that can cross the blood-brain barrier and may preserve cognition when presented with a MF challenge. As yet, no studies have yet been conducted in an all-female cohort. This is the first study to investigate 4-weeks of AX supplementation on markers of cognitive performance (reaction time (RT), speed, and responses correct per second (RCS), visual analog scale of mental exertion (VAS-E)) following acute MF. Twenty-five recreationally active female subjects (AX: n …

The Impact Of University Engagement On Psychosocial Factors Among Division I Female Student-Athletes, Ashley A. Cook

Dissertations

Background: Female student-athletes navigate unique psychosocial challenges balancing academics and athletics, yet limited research has explored the impact of university engagement on their social and emotional well-being. This study examines the impact of university engagement on sense of social fit (SSF), nonspecific psychological distress (NPD), and loneliness among Division I female student-athletes.

Method: A cross-sectional survey was conducted among female student-athletes (n = 111) from eight sports at a mid-sized NCAA Division I university in the Southern U.S. Participants completed validated measures using the SSF scale, UCLA Loneliness scale, and Kessler-6 Psychological Distress scale. An exploratory factor analysis was performed …

Comparison Of Post-Exercise Lipid Oxidation Rates Between Lower And 1 Upper-Body Resistance Training In Well-Trained Females, Alyssa L. Parten

Dissertations

INTRODUCTION: Lipid oxidation (LOx) is a relevant physiological process linked to metabolic health. Despite growing interest in resistance training (RT) as a means to influence substrate utilization LOx responses in females remain poorly characterized, with no study examining whether lower- and upper body RT elicits different LOx patterns during the recovery period following exercise. This distinction may  be relevant because lower-body exercises involves greater fat-free mass (FFM) and energy expenditure,  whereas upper-body exercises recruit less FFM, potentially influencing metabolic effects.

PURPOSE: To  determine if LOx rates after exercise differ between lower- and upper-body RT in well-trained females.

METHODS: Twenty-two females …

Menstrual Cycle Phase Exerts No Influence On Running Economy Parameters In Recreational Female Runners, Savanna K. Knight

Dissertations

Hormonal fluctuations that occur throughout the menstrual cycle (MC) have been shown to affect substrate utilization and oxygen uptake when running. These MC induced changes could manifest as altered running economy (RE) when expressed as energy cost (Ec) and oxygen cost (O2c). Therefore, the current study aimed to determine if RE differs between MC phases, the early follicular phase (E-FP) and the mid-luteal phase (M-LP). Twelve eumenorrheic female recreational runners (ages 25 ± 4y; VO2peak 40.9±4.6 ml/kg/min) completed submaximal RE bouts (60%, 70%, 80% of VO2peak) during the E-FP and M-LP. During each bout, oxygen consumption (VO2), respiratory exchange ratio …

Self-Awareness And Self-Efficacy In The Novice Professional Phase Of Marriage And Family Therapists After Person Of The Therapist Training, A Comparative Survey, Rubio Betsabé

Dissertations

The study focuses on examining the influence of person-of-the-therapist or self-of-the-therapist training on therapists’ self-reports of self-awareness (as a conscious awareness of one’s internal states and interactions with others) and self-efficacy (perceived beliefs in personal capabilities to perform in ways that give control over events that affect their lives) at the novice professional stage of their career. The study will examine the experiences reported by mental health providers actively providing clinical care by utilizing a survey design focusing on person of the therapist connecting through alumni lists and online solicitation. This research adds to the current literature by using a …

What Works In Telehealth Play Therapy? An Appreciative Heuristic Inquiry, Veronica Ann Ball

Dissertations

With the onset of coronavirus disease 2019 (COVID-19) in the United States in March 2020 (World Health Organization, 2020), professional counselors providing traditional in-person play therapy found themselves in a quandary regarding the delivery of services during a global pandemic (Evans, 2022; Mitchell, 2020; Whaibeh et al., 2020). Online counseling proffered a means to prevent the disruption of services, respond to the need for emerging counseling services, and comply with social restrictions (Evans, 2022). Prior to the pandemic, telehealth play therapy was used sparingly (Haslam & Harris, 2011; Smith et al., 2021), and many child-serving mental health professionals lacked training …

Alienation On Campus: Students, Agency, And A 'Praxis Of Possibility', Julia R. Allison

Dissertations

In the 1950s, 60s, and 70s, the idea of alienation took hold across the United States as a way of explaining feelings of disconnection, powerlessness, and meaninglessness that seemed to be pervading American society. This was no less true on college and university campuses, where students engaged in protest over both government action and inaction and a new youth counterculture took root. What led to alienation’s prominence as a social phenomenon is a matter of some debate, as are the causes of its precipitous decline in the early 70s. However, after an extended silence more recent decades have seen something …

Patient Violence In The Emergency Department : The Potential Role Of Endogenous And Exogenous Factors, Laura Baker Graham

Dissertations

Patient Violence against nurses is a widespread problem resulting in both emotional and physical injury to the nurse. Emergency Department (ED) nurses are at an increased risk due to the volume and variety of the patients they serve, and the general chaotic environment of the ED; however, little research has been done examining the characteristics of patients who offend and the physical environment of the ED where the event happened. The aim of this three-article dissertation was to develop a more thorough understanding of the personal attributes (endogenous) of the individual patient and external (exogenous) factors of the emergency department …