Exploring Imagination Within Early Childhood Education, Leah Christian Naylor

Dissertations

Imagination is a powerful mental process and integral to a child’s development and education. Early childhood education is an ideal situation and time to explore, nurture, and provide space for imagination. The purpose of this research was to witness, document, and share the imaginative moments in three ECE classrooms and contribute to the important body of research on imagination. Within this qualitative study, I utilized educational criticism to explore the use, presence, and implications of imagination in an educational environment. I found it was in the space afforded by teachers—which included time, opportunities for student choice and freedom, or open-ended …

Musical Inspirations From Tang Court Dance Nichang Yuyi In Liu Qing’S Fantasia Of Chinese Ancient Dance For Two Pianos, Yuan Li

Dissertations

Dr. Liu Qing’s Fantasia of Chinese Ancient Dance for two pianos (2011) stands as a notable contemporary Chinese piano composition that reinterprets the renowned court dance suite Nichang Yuyi (the dance of Rainbow-Colored Feather Garment) from the 8th century Tang Dynasty China. Drawing inspiration from the structure and the musical modal languages of the Tang court dance, as well as the descriptions from Tang poet Bai Juyi’s poem of Nichang, Liu Qing adeptly combined her knowledge of Chinese musical traditions with Western compositional techniques, introducing stylistic diversity to the piano duo scene through this captivating work of dance music. This …

A Discrit Analysis Of Experiences Influencing Belonging For College Students With Disabilities, Paige Nichole Johnsen

Dissertations

Despite growing numbers of college students with disabilities and a call to offer support beyond disability service offices, earlier data demonstrate disproportionate barriers to disabled students’ academic success resulting from or in (a) limitations to existing accommodations, (b) worsening mental health, (c) academic achievement gaps, and (d) a privileged understanding of disability. Using disability critical race theory (DisCrit) as a theoretical framework, the purpose of this narrative case study was to discover the intersectional experiences impacting sense of belonging for college students with disabilities at a mid-sized regional institution (pseudonym: Mountain West University) in the United States. The study was …

Comparison Of Bayesian Versus Maximum Likelihood Estimation In The Case Of Unbalanced Panels With Count Data, Bryan Hudson

Dissertations

Commonly in applied research settings, investigators wish to study counts of some event of interest over time, such as number of infections, or absences from school. However, in many cases, investigators may only have access to data sets in which measurements with individuals are not available at each measurement timepoint. A foundational statistical method for the study of panel data is generalized linear mixed effect modeling, which typically uses the maximum likelihood estimation (MLE) to estimate parameters. However, Bayesian estimation (BE) offers an alternative approach. In this simulation study, data were generated with varying sample sizes, proportions of missing data, …

Exploring University Student Perceptions Of Climate Change Using Connection To Nature And Psychological Distance, Jessica Duke

Dissertations

The central goal of my dissertation is to better understand undergraduate biology students’ perceptions of climate change specifically using a localized lens. Research relating to climate change perceptions and understanding is common in the K-12 setting; however, there have been far fewer studies that use undergraduate student populations. Undergraduate students represent a new age of the voting populus and are therefore an important demographic to target for inducing environmental change. To foster climate change awareness, concern, and willingness to act in our undergraduate students, we must first understand how they perceive it. Using both quantitative and qualitative approaches I explored …

Community Of Practice As A Path To An Authentic Emancipatory Education, Rachel James Beckwith

Dissertations

Beckwith, Rachel James. Community of practice as a path to an authentic emancipatory education. Published Doctor of Education dissertation, University of Northern Colorado, 2024. Emphasized in Maslow’s Hierarchy of Needs is belonging. It is identified as one of the most inherent human needs; we cannot survive without connection, without belonging. Yet our society seems to reject community values in lieu of rugged individualism. This hyper-fixation on liberty at the expense of social responsibility has not been without its consequences. Classrooms have been a prime breeding spot for the battle between “us” and “them;” the heavy emphasis on grades, contests, and …

Exopolysaccharides Of Lactic Acid Bacteria Isolated From Labneh: Characterization, Bioactivities, And Effects On Gut Microbiome And Fermented Milk Rheology, Mohammed Tarique

Dissertations

Exopolysaccharides (EPS), produced by Lactic Acid Bacteria (LAB), are carbohydrate polymers with unique physicochemical properties and various biological activities widely used in food and pharmaceutical industries. This dissertation is aimed to (1) screen 42 new isolates from traditional yogurt-like products (Labneh) for their probiotic nature and identify the LAB strains using 16S rDNA sequencing; (2) optimize the conditions like pH, temperature, time, and quantity of sucrose for the growth of EPS produced by four selected LAB isolates; (3) purify and characterize EPS for the contents and investigate the bioactivities of the partially purified EPS; (4) study the effects of the …

"My Longest Relationship Is With Food": Exploring Eating Related Behaviors Throughout The Gender Identity Journey Of Transgender Males, Angeles Polett Coss

Dissertations

This study sought to explore how transgender adult males have navigated the development of their eating behaviors throughout their gender identity trajectory. While recent research has focused on gender identity development and protective factors of the transgender community, this study explored and examined elements regarding the eating related behaviors of transgender males. Interviews were conducted with six participants within the United States during semi structured virtual sessions; the age range of participants was 19 to 35. Results of this research revealed identity management, Sociopolitical discourse, identity management and inter-relational identity affirmations as inter-multicultural segments that connected with eating related behaviors …

Sharp Injuries And Splash Exposures Among Healthcare Workers In The United Arab Emirates, Ibtisam Aref Karkaz

Dissertations

Brief introduction: Occupational injuries, including sharps injuries and splash exposures, pose significant risks to healthcare workers worldwide. These incidents can lead to the transmission of bloodborne infections, resulting in substantial healthcare costs and workforce challenges. Aims: The present study aimed at investigating sharps injuries and splash exposures among healthcare workers in Abu Dhabi government hospitals. To achieve the aim, the study planned to determine the frequency of sharps injuries and splash exposures, and to identify their risk factors, applied preventive measures, and consequent occupational infections. Method: Secondary data from the available records of all sharp injuries and splash exposures reported …

Resource Wealth And Micro-Insurgency Duration, Michael Trevett

Dissertations

Why are some insurgencies small in scale but long-term in duration, particularly those involving natural resource wealth? This dissertation identifies and defines a specific type of intrastate conflict, the micro-insurgency. I then examine how and why micro-insurgencies fought over natural resources are almost always very long-term conflicts, often lasting decades. Two data sets from previous research, one by Michael Ross and the other by Paul Collier and Anke Hoeffler, are refined and then analyzed and tested using Fuzzy set Qualitative Comparative Analysis (FsQCA). Findings from the FsQCA testing and analysis reveal that ancestral lands and actual, or existing and exploitable, …

Perovskite Materials For Optoelectronics Applications: Solar Cells And Photodetectors, Abdul Kareem Kalathil Soopy

Dissertations

Perovskite materials have emerged as promising candidates for optoelectronic applications, particularly in solar cells and photodetectors, due to their remarkable properties such as high carrier mobility, tunable bandgap, and low-cost fabrication. This thesis explores two novel approaches, namely monovalent doping and bulk as well as surface passivation, to enhance the performance and stability of perovskite-based devices.

The primary goal of this research is to enhance the properties of perovskite materials to improve their optoelectronic performance, aiming to broaden their use in solar cells and photodetector devices. Specifically, this study seeks to evaluate the effectiveness of Cu doping and Zinc porphyrin …

Factors Influencing Uae High School Chemistry Students' Learning Of Organic Qualitative Analysis: A Qualitative Study, Manal Abdullah Almahdawi

Dissertations

Chemistry is one of the five science subfields typically covered in secondary schools in the United Arab Emirates. Chemistry is a branch of science that studies substances' characteristics, components, and structures. Numerous subfields fall under the umbrella of chemistry, including inorganic, organic, analytical, and physical chemistry. One of the topics covered in chemistry classes is the analysis of chemical compounds, which is divided into two types: quantitative analysis and qualitative analysis. While qualitative analysis determines the kind of each element or group present in a given solution sample, quantitative analysis determines the quantity of each element or group present. Students' …

Phenolic Compounds In Date Fruits (Phoenix Dactylifera L.), Muneeba Zubair Alam

Dissertations

This study investigated the phenolic compounds in date fruits, mainly soluble and hydrolyzable compounds, and insoluble melanin. Soluble (27.5–54.0 mg/100 g FW) and hydrolyzable (24.0–78.5 mg/100g FW) phenolic compounds were determined in 18 cultivars using ultra-performance liquid chromatography coupled with mass spectrometry. Phenolic acids were predominant in both fractions while flavonoids were mainly present in the soluble phenolic fraction and the proanthocyanidin B1 and B2 were only present in the hydrolyzable fraction. Four total antioxidant activity assays (total phenolic content, ABTS, FRAP, and DPPH) gave different results for both the soluble and hydrolysable fractions of 26 date fruit cultivars, which …

Valorization Of Date Palm Waste For The Isolation, Characterization, And Surface Chemistry Modification Of Nanocellulose, Mohsin Raza

Dissertations

This dissertation focuses on the utilization of date palm waste, a lignocellulosic material, as a source for the extraction of nanocellulose (NC), a versatile biopolymer with applications in biodegradable composites, bioplastics, and food packaging. Conventional methods of NC production using mineral acids such as sulphuric and hydrochloric acid are reaching their limits of toxicity, so more environmentally friendly alternatives such as ionic liquids (ILs) are being explored. The research focuses on the characterization of different date palm wastes to evaluate their α−cellulose content, lignocellulosic character, and thermal stability. By comparing extraction methods with mineral acids and ILs, the study evaluates …

The Relationship Between Undergraduate Student Leadership Potential And Selfperceived Employability And The Moderating Role Of Student Engagement, Aizhan Shomotova

Dissertations

The employability of university graduates is increasingly crucial for economic development, particularly in the Arab region, where youth unemployment is escalating. This thesis examines the Self-Perceived Employability (SPE) among undergraduate students in the UAE, exploring its relationship with Leadership Potential (LP) and Higher Education Student Engagement (HESE). Previous studies underscore the importance of aligning higher education outcomes with labour market demands. Research in student leadership and student engagement emphasizes that proactive engagement and leadership development are pivotal in enhancing employability. This thesis builds on these findings, focusing on the unique context of the UAE. A quantitative methodology was used to …

Mapping The Invisible: Machine Learning And Geovisualization Methods For Groundwater Management, Khalid Galal Elhaj

Dissertations

Groundwater is a vital global resource, yet mapping and managing aquifers remains challenging due to costs and complexities. This doctoral dissertation pioneers novel data-driven methodologies harnessing machine learning and hydrogeology domain knowledge to sustainably characterize and monitor aquifer systems. The overarching hypothesis investigated is that time series clustering of historical well hydrographs can enable low-cost delineation of aquifer boundaries by detecting response similarities between wells sharing the same aquifer. To test this, three interconnected studies were conducted. First, a specialized time series clustering framework was developed incorporating a global temporal alignment index and custom dissimilarity metrics tuned for hydrogeology. The …

Retrofit Prioritization Of Substandard Buildings For Earthquake Risk Management, Roshen John Joseph

Dissertations

Despite the pressing need for risk mitigation techniques for reinforced concrete (RC) structures designed without considering seismic design provisions, limited research has focused on selecting experimentally verified retrofit measures from various alternatives, particularly considering minimizing disruption to operating real-life buildings. Against this backdrop, this study is directed toward selecting reliable and costeffective retrofit techniques for improving the seismic performance of substandard RC buildings with different structural systems and heights common in medium seismicity regions. Contemporary retrofit approaches are investigated, including polyparaphenylene benzobisoxazole fiber-reinforced cementitious matrix (P-FRCM) composites, carbon FRCM (C-FRCM) composites, thin high-performance reinforced concrete (HPRC) jackets, and self-centering energy …

The Role Of Abu Dhabi's Nearshore Marine Environments In The Ecology Of Elasmobranch Fishes, Stephan Bruns

Dissertations

This dissertation investigated the role of inshore habitats in the ecology of elasmobranch fishes, with a specific focus on the wider Khor Fardiah Region on the eastern site of Abu Dhabi City. Once the vulnerability of these environments to anthropogenic pressure and climate change is recognised, it is clear that nearshore environments are susceptible to adverse outcomes. Hence, this dissertation aims to provide informative data that can help in devising effective conservation strategies. The study used a multi-survey technique approach, including stereo-BRUVS, acoustic telemetry, and satellite tracking, in combination with local ecological knowledge to explore the species diversity and habitat …

Positive Psychology In The Ncaa: Amplifying The Power And Uplifting The Voices Of Student Athletes In Multiple Mental Health Studies, Ashley C. Green

Dissertations

Mental health resources and programming in the National Collegiate Athletics Association (NCAA) continues to expand in research and implementation in collegiate athletic departments of all institutions. This study sought to respond to and expand on dissertation research conducted by Dr. Heather Ryan (2021), an administrator in the athletic department at Duke University, and Dr. Chelsi Day (2011) previously the sport psychologist from Ohio State University athletics, and currently for the National Basketball Association (NBA) team, the Memphis Grizzlies. Both are identified as experts regarding student-athlete research regarding mental health needs and accessibility within the NCAA. Topics of research evaluated for …

Burnout And Work Fatigue In Contingent Faculty During The Covid-19 Pandemic, Gina Dimartino

Dissertations

The COVID-19 pandemic and immediate shift to remote learning had a major impact on faculty and students in higher education institutions (HEIs). As a result of the pandemic, many stakeholders in HEIs have experienced burnout and work fatigue, specifically, contingent/adjunct faculty. Contingent/adjunct faculty comprise a majority of faculty who serve students in colleges and universities across the country.

As the needs of students increased during the pandemic, contingent/adjunct faculty experienced increased workloads due to the additional support needed by diverse and challenged students. This further intensified the unique challenges faced by contingent faculty that existed prior to the pandemic in …

Investigating The Role Of Diet In Modulating Neuroinflammation In Health And Disease, Rasa Valiauga

Dissertations

An estimated 55 million people worldwide suffer from dementia, with the prevalence expected to drastically increase in the coming years as the population ages. Alzheimer’s disease (AD) is the most common form of dementia and the substantial burden associated with AD has been recognized as a growing public health issue. Despite significant advancements in uncovering the mechanisms which play a role in disease pathology, there is currently no cure or effective treatments. AD is highly complex and multifactorial, with accumulation of misfolded protein, oxidative stress, and inflammation among the numerous etiological processes implicated in disease pathogenesis. While genetic risk factors …

How Elementary School Principals Successfully Led Through The Turbulence Of The Covid-19 Crisis, Juan Chavez

Dissertations

Purpose: This phenomenological study aimed to discover and describe behaviors elementary school principals practiced while leading their schools through the turbulent times of COVID-19 using the leadership attributes of personal temperament, concern for collective interest, resilience, and moral purpose, as perceived by elementary school teachers. Methodology: This qualitative study used a phenomenological research design. Data were collected from interviews 12 with elementary school teachers in Monterey County to discover and describe behaviors their principals practiced in leading their schools through the turbulent times of COVID-19. Findings: The study revealed 16 themes related to behaviors elementary school principals used related to …

Civil Service Merit And Employment At Will Personnel Systems: The Role Of Transformational Change Leadership In Public Sector Recruitment, Hiring, Promotion, Retention, And Succession Planning, Angela Lauria-Gunnink

Dissertations

Purpose: This nonexperimental, descriptive, and comparative study aimed to identify and describe the differences between Public Sector HR Association (PSHRA) professionals who worked in a state or local government civil service merit or employment at will (EAW) personnel system.

Methodology: This nonexperimental, descriptive, and comparative study identified and described the responses of 214 state and local government PSHRA professionals throughout the United States, focusing on their respective personnel systems. The researcher collected data and tabulated descriptive statistics and z scores to compare and statistically determine the differences between the two public sector personnel systems.

Findings: The 214 PSHRA professionals who …

Adaptive Leadership: Nurse Executives Building Organizational Adaptive Capacity During Times Of Crisis, Challenge, And Change, Kristian Poitier

Dissertations

Purpose: The purpose of this exploratory phenomenological study was to identify and describe the strategies used by nurse executives in acute care hospitals to build an adaptive capacity based on the five key characteristics of adaptive leadership identified by Heifetz et al. (2009).

Methodology: This qualitative phenomenological study identified and described the perceived impact of adaptive leadership on building an organization’s adaptive capacity as perceived by nurse executives in acute care hospitals, for-profit and not-for-profit, with the title of chief nursing officer (CNO) or chief nurse executive (CNE) in Southeast, West, and North Florida. The researcher was part of a …

Millennial Latina Non-Profit Leaders: Exploring Self-Sabotaging Behaviors And Their Journey To Reclaiming Their Power, Tatiana Mendoza-Larreynaga

Dissertations

Purpose: The purpose of this mixed method study was to identify and describe self-sabotaging behaviors experienced by Millennial Latina nonprofit C-Suite leaders and explore the impact of these behaviors on their career development. A secondary purpose of this study was to identify strategies employed by Millennial Latina nonprofit leaders to overcome self-sabotaging behaviors.

Methodology: Employing a mixed method sequential explanatory design, the research involved eight Millennial Latina nonprofit leaders, utilizing convenience and snowball sampling. Data collection included electronic Likert scales to quantify self-sabotaging behaviors and interviews to explore lived experiences. Analysis sought to identify prevalent behaviors and strategies for overcoming …

Mathematical Modeling For Dental Decay Prevention In Children And Adolescents, Mahdiyeh Soltaninejad

Dissertations

The high prevalence of dental caries among children and adolescents, especially those from lower socio-economic backgrounds, is a significant nationwide health concern. Early prevention, such as dental sealants and fluoride varnish (FV), is essential, but access to this care remains limited and disparate. In this research, a national dataset is utilized to assess sealants' reach and effectiveness in preventing tooth decay, particularly focusing on 2nd molars that emerge during early adolescence, a current gap in the knowledge base. FV is recommended to be delivered during medical well-child visits to children who are not seeing a dentist. Challenges and facilitators in …

Exemplary Elementary School Principals’ Use Of Emotional Intelligence As They Lead Their Organizations In Rural Areas, William Cook

Dissertations

The roles of school leaders have evolved from a more conventional focus, one encompassing independent leadership, to a relational leadership approach that is more open and personable (Hoyle et al., 2005). The purpose of this qualitative multicase study was to describe the emotional intelligence strategies that exemplary elementary principals in rural areas use as they respond to leadership challenges in their school organizations based on Goleman’s (2006) four domains of emotional intelligence (self-awareness, self-management, social awareness, and relationship management). A secondary purpose of the study was for exemplary elementary principals in rural demographics to explain how their use of emotional …

Returning To School After A Pandemic And The Lived Experiences Of Rural High School Mathematics Teachers On Student Success, Joshua Saúl Silva

Dissertations

Purpose: The purpose of this qualitative phenomenological methodology investigation was to examine and describe rural mathematics teachers’ lived experiences on the effects of the COVID-19 global pandemic on freshman students returning to school after being online for 2 years through the lens of Bandura’s theory of self-efficacy and serves as part of a thematic dissertation with each researcher focusing on different educators in the K-12 school system.

Methodology: Through qualitative methodology utilizing one-on-one interviews of nine rural high school freshman mathematics teachers with 5 or more years of experience before, during, and after the COVID-19 global pandemic, data was analyzed …

Experiential & High Impact Learning As Catalysts For Change: Exploring The Historical Inquiry Process And Experiences Of High School And College History Educators, Brian Thomas

Dissertations

ABSTRACT

This study explores how high school and college history instructors’ perspectives of experiential learning opportunities and high-impact practices influence their epistemic beliefs as history teachers. The research considers educators’ pedagogical practices to align inquiry and historical thinking with experiential learning opportunities and high-impact practices (HIPs). This study promotes the American Association of Colleges and Universities (AAC&U) notion that college success is not determined by earning a degree but by becoming a civic-minded, engaged graduate. Kuh (2008a) and the AAC&U created the HIPs framework to transform higher education and prepare students to meet the challenges of a changing global world. …

Culturally Responsive Pedagogy, “If I Told You That A Flower Bloomed In A Dark Room, Would You Trust It?1”: A Case Study In English Language Arts Achievement, Anna E. Russell Ziegler

Dissertations

This dissertation explores the relationship between culturally responsive pedagogy and student achievement to showcase how teaching can build a more equitable learning community where all students thrive. Using a case study model, the author explores how one English teacher designed culturally responsive instructional practices to improve student performance. Analyzing data from student work, student interactions, and student conversations, I discovered instructional themes that improved learning for each student and can be transferred to classrooms across the country.