Digital Commons Network^™

Clearing Ethnic Minority Roadblocks To Entry Into The Field Of Dietetics: A Mixed Analysis, Lisa C. Best

UNF Graduate Theses and Dissertations

Background - Dietitians are represented by fewer than 3% African Americans and 6% Hispanics compared with population demographics of 13% and 19% respectively. Despite 50 years of research on pipeline education, mentorship programs, cultural competency, and funding opportunities, minority participation in dietetics remains disproportionately low. At a time of increasing health care disparity, it is more important than ever to recruit and retain minorities in dietetics to optimally serve an ever increasingly diverse population.

Methods - 18 Historically Black Colleges and 26 high Hispanic census schools nationwide were contacted by email and follow-up phone call to explore and address ethnic …

Navigating Unknown Complexities: School Superintendent Perspectives Of Leading During Covid, Jamie Mikelle Pearson Iannone

UNF Graduate Theses and Dissertations

The COVID-19 pandemic has presented unprecedented challenges for educational leaders, particularly superintendents, who have been tasked with navigating the complexities of leading during a global crisis. In this study I explored the perspectives of superintendents on leading during COVID-19 and examined the application of Complexity Leadership Theory in educational settings. Through semi-structured interviews with superintendents from diverse districts, I investigated the strategies and approaches employed by educational leaders to address the multifaceted challenges posed by the pandemic. I also examined the impact of Complexity Leadership Theory on educational practices and outcomes during the pandemic. The findings suggest that superintendents have …

A Clustering-Based Approached To Analyze Impacts Of Digital Divide On Undercounting Issues In Census In Florida, Partha Protim Datta

UNF Graduate Theses and Dissertations

According to the US Census Bureau 2020 data, Florida is one of the six states where the population was undercounted. The census in the US is conducted every ten years and plays a pivotal role in shaping government representation, resource allocation, policy making and federal assistance distribution. Consequently, undercounting of population impacts demographic equality, potentially leading to inequitable distribution of resources. The state of Florida will lose billions of dollars by the end of the decade due to this undercounting issue. So, it is an important task to find the proper reason and sources of undercounting in Florida. The US …

Development Of Erosion Functions For Micp-Treated Beach Sand, Saeed Booshi

UNF Graduate Theses and Dissertations

This thesis investigates the effectiveness of microbially-induced calcium carbonate precipitation (MICP) using the recently introduced bioslurry treatment method via surface percolation. To simulate realistic water forcing conditions, a piston-style erosion rate testing apparatus, specifically the Florida Department of Transportation Sediment Erosion Rate Flume, was used. Initial tests conducted at a high shear stress of 42 Pa revealed that a combination of 15% bioslurry and 85% cementation solution exhibited the strongest erosion resistance when compared to other ratios between bioslurry and cementation solution. Subsequent experiments focused on separating the specimen into a "loose" part and a “surface crust,” with shear stresses …

Potentiating Effects Of Interim Tests And Metacognitive Judgments On Future Learning, Hunter Ray Vannaman

UNF Graduate Theses and Dissertations

Interpolated tests benefit retention of both tested material and material learned afterward. One proposed mechanism for the potentiating effect of testing involves the learner gleaning metacognitive information from tests regarding how well the material is being learned, curbing overconfidence and influencing future encoding strategies. The current study investigated whether making judgments of learning (JOLs) may similarly induce metacognitive introspection and benefit learning. An online sample of 464 adults from the United States was randomly assigned to one of three interim task conditions and one of three JOL conditions that determined how they would interact with each of the four text …

Explainable Automated Inconsistency Detection In Biomedical And Health Literature, Prajwol Lamichhane

UNF Graduate Theses and Dissertations

Given the exponential growth of scientific information online, researchers often face the daunting task of detecting contradictory statements on crucial health topics. This work develops a comprehensive pipeline for automated contradiction detection that integrates an Information Retrieval (IR) system, machine learning classifiers, and Explainable AI (XAI). The Information Retrieval system is tailored for biomedical data and comprises a datastore, syntactic, and semantic components. Users can input queries, initiating a pipeline that identifies top documents through syntactic analysis and refines results via semantic examination for relevant research claims. Employing a diverse range of Large Language Models such as pre-trained Distil-BERT, BioBERT, …

Endophytic Fungi Associated With Galls And Host Plants Of Asphondylia Borrichiae (Diptera: Cecidomyiidae), Shannon Lynn Sharpe

UNF Graduate Theses and Dissertations

Asphondylia borrichiae, like other gall-forming gnats, are obligate symbionts to the endophytic fungi (EF) they deposit when laying eggs. Asphondylia spp. and EF are important biocontrol agents, yet details surrounding their diversity, life cycles, and host interactions remain poorly understood. Galls and leaf-stem tissues from two host plants were surveyed to identify and compare EF diversity between the host tissues and species of A. borrichiae. Identification of 114 isolates was carried out by sequencing the internal transcribed spacer (ITS 1/4 primers). Pairwise alignments in multiple genetic databases were bolstered by phylogenetic analyses using maximum parsimony and maximum likelihood …

Anomaly Detection Approaches Of Energy Storage Systems Using Kalman Filter And Machine Learning Techniques, Phadungsak Tubuntoeng

UNF Graduate Theses and Dissertations

The increasing prevalence of cyber-attacks poses a significant concern, particularly within critical infrastructures like the power system. Such attacks have the potential to cause substantial impacts on essential services, economic stability, and national security. Energy storage systems (ESS) are integral components of the power grid and are particularly vulnerable to cyber threats. These vulnerabilities can be exploited through various means, including two-way communication, web portals, and remote access.

Given the critical nature of ESS, the ability to detect and mitigate malicious cyber-attacks is imperative. Various methods can be employed for cyber-attack detection, including signature-based, anomaly-based, and behavior-based approaches. In this …

Exploring The Perspectives Of Teenage Tutors Who Tutor Elementary Students In A One-To-One Reading Tutoring Program, Talya M. Taylor

UNF Graduate Theses and Dissertations

There have been minimal studies on tutoring programs that pair elementary students with teenage tutors (Jacob et al., 2016). Innovative tutoring programs are important as student reading achievement has declined since the onset of COVID-19 and school systems face instructional staff shortages. Through the lens of Self Determination Theory, this study explored how tutor autonomy (Ryan & Deci, 2000) to choose instructional strategies and delivery methods influences student reading progress through one-to-one tutoring.

Centered in a constructivist world view, qualitative research methodology was used to explore the relationship between teenage tutors exercising autonomy when delivering a scripted reading curriculum and …

The Joint Effects Of Cognitive Function And Sedentary Time On Mortality Risk In Older Adults: 2011-2014 Nhanes, Sarah A. Wilson

UNF Graduate Theses and Dissertations

Background: Examining the joint effects of cognitive function (CF) and sedentary time (ST) may provide insight into the complex mechanisms underlying mortality risk within older adults. This study examines the joint effects of CF and ST on mortality risk in older adults.

Methods: Sample included 2,230 older adults (≥ 60 years of age) participants in the 2011-2014 National Health and Nutrition Examination Survey. The Digit Symbol Substitution Test (DSST), Consortium to Establish a Registry for Alzheimer's Disease (CERAD) subtests, and Animal Fluency (AF) were used to assess CF. Average daily sitting and television time represented ST. Quartiles of CF and …

The Perceptions Of Black Women In Principalships On Navigating And Negotiating The Racial Contexts Of Their Equity-Focused Leadership: A Q Methodology Study, Easter M. Brown

UNF Graduate Theses and Dissertations

One consequence of the Brown v. Board of Education (1954) ruling regarding desegregation of American public schools has been the destabilization of Black educators’ legacy of school leadership (Tillman, 2004). The effects of these failures continues to be problematic in US public education. Students of color account for over half of all P-12 enrollments, in contrast to the disproportionate lack of diversity among its teaching and leadership rosters (Frankenberg, et al., 2019; NCES, 2018, 2022). The stagnant rate at which American schools have diversified principal leadership since Brown v. Board (1954) begs the question of how equipped schools are to …

Infusing Universal Design For Learning With Trauma-Informed Educational Practice: What Early Childhood Personnel Think And How They'll Pull It Off, Marlena L. Jenkins

UNF Graduate Theses and Dissertations

This research recruited ten early childhood personnel within a public elementary school and attempted to gain insight into their beliefs and attitudes directly related to the principles of universal design for learning and the tenets of trauma-informed educational practice. Through this qualitative study, the researcher posited the importance of explicit professional learning and a supportive and openly communicative school environment to support the implementation of a combined trauma-informed universal design for learning (Ti-UDL) framework. Such a model has implications not only impacting personnel and student relationships, but those occurring amongst school-wide personnel of all levels. This research employed multiple phases, …

Laboratory Measurements Of Wave Transmission Through Oyster-Based Low Crested Breakwaters, Michael Andrew Roster

UNF Graduate Theses and Dissertations

Pervious Oyster Shell Habitats (POSH) are novel living shoreline components that were recently developed and deployed along several shorelines in northeast Florida. POSH units are designed to provide a breakwater using only recycled eastern oyster shell and Portland cement. However, the hydrodynamic performance of these unique structures had never been tested, so it was unclear how they affected wave energy. During this study, a series of laboratory experiments were conducted to compare wave attenuation from POSH units to wave attenuation from geometrically similar and commercially available Reef Balls^TM (specifically, the OysterBreak series of units). Experiments included a range of …

Rose Nourish To Flourish Obesity Prevention Program Targeting Children At Risk For Food Insecurity In Jacksonville, Florida, Jamie Marchio

UNF Graduate Theses and Dissertations

The Nourish to Flourish study aimed to decrease the prevalence of obesity among food insecure children in Jacksonville, FL. Specifically, the program focused on nutrition education and access to healthy foods. The study consisted of a 4-week nutrition education series emphasizing the major determinants of healthy weight known as 5-2-1-0! This includes expanding knowledge of fruit and vegetable intake to achieve a target intake of five servings a day, screen time reduction to no more than two hours a day, achieving a physical activity goal of one hour a day outside of school hours, and limiting sugar sweetened beverage consumption …

Can A Phycosphere Associated Bacterium Be Used As A Biological Control For Floating Algal Mats?, Aubrey C. Patterson Holsworth

UNF Graduate Theses and Dissertations

Abstract

Freshwater harmful algal blooms (HABs) are a global water quality issue. Algae, especially cyanobacteria, are integrally associated with complex microbial assemblages, which cycle nutrients, provide microenvironments, breakdown potentially harmful molecules, etc. However, these same microbial consortia are competitors or even inhibitors to algae in these systems. One potential biological control is Rhodospirillum rubrum, a Gram- proteobacterium. To evaluate its capacity for HAB mitigation, experimental mesocosms were inoculated with a native assortment of algae and R. rubrum and grown for 2-months. Relative Fluorescence Units (RFU), Ash Free Dry Mass, and eukaryotic (23S rDNA) metabarcoding were conducted to estimate algal …

High-Quality Dietary Protein (Essential Amino Acids Matched To Reproductive Needs) Partially Breaks The Lifespan And Reproduction Trade-Off In Lubber Grasshoppers, Emma Kordek

UNF Graduate Theses and Dissertations

Finding interventions to break the trade-off between reproduction and lifespan can provide insight into physiological limitations of animals. Effects of dietary protein quality on the trade-off are currently unclear, but clarity could lead to better designed diets that match animal needs. Dietary amino acid blends matching yolk proteins support reproduction and extend lifespan in fruit flies. To test if this is conserved across species, we matched dietary amino acids to vitellogenin to test reproduction and lifespan in adult females of the lubber grasshopper. Specifically, we compared varying degrees of protein quality by manipulating dietary essential amino acids. We identified a …

The Impact Of Online Course Enrollment Of First-Year Student Engagement And Campus Life, Ruth Y. Lopez

UNF Graduate Theses and Dissertations

The purpose of this quantitative study is to examine the impact online classes have on first-year student engagement and campus life at the University of North Florida. By using Alexander Astin’s theory of student involvement, this study examines the pattern of student engagement over time for first-year students enrolled in four quartiles of online classes. The study will focus on the level of engagement around (1) the utilization of five selected on-campus facilities and (2) student participation in six selected on-campus signature events and activities. The study also explores the meaningful ways these four student groups enrolled in online classes …

Implementation Of Algorithms For Sorting By Strip Swaps Using Alternating Cycle Graphs, Harsh S. Bhakharia

UNF Graduate Theses and Dissertations

Challenges in computational biology, such as genome rearrangement, and applications in optical character recognition, like zoning techniques, often require solving optimization problems. These involve reordering scrambled sequences of numbers into a sequential arrangement known as the identity permutation.

Rearranging any given permutation into the identity permutation with the minimum number of specific operations related to strips gives rise to various combinatorial optimization scenarios. Operations such as strip moves, transpositions, reversals, and block interchanges have been extensively researched.

This thesis builds on the foundational work of Roy et al., targeting the refinement of their cycle graph algorithm for sorting by strip …

Exploring The Welfare Of A Captive Population Of Cownose Rays (Rhinoptera Bonasus) Through Social And Resource Interactions, Kendal N. Rogers

UNF Graduate Theses and Dissertations

Zoos and aquariums utilize research-based management to ensure animals remain in a positive welfare standing. While vital, this research is taxa-biased towards mammals, with few studies observing other species that are frequently observed in captivity, such as elasmobranchs, or sharks and rays. Often maintained in exhibits that allow direct guest interaction, or touch pools, elasmobranchs have been shown to respond to these exposures through behavior changes in activity and social interactions. While this may indicate a potential for compromised welfare, the literature is conflicting and sparse, leaving uncertainty in the overall welfare condition of animals maintained in this popular exhibit …

Spatial Equity In Accessing Critical Facilities During Hurricanes, Pooya Komeilian

UNF Graduate Theses and Dissertations

Florida encounters multiple natural disasters every year, making evacuation a critical mitigation plan when severe impacts are predicted. Evacuation is a complex procedure that involves everything from household decision-making to large-scale traffic network analysis. It also addresses logistical issues, such as transporting impacted people to shelters or medical centers. Access to shelters, gas stations, and lodgings is of utmost importance, as numerous studies and surveys have shown that some people prefer not to evacuate, even if they perceive the disaster risk to be very high.

Based on this, the present study follows two phases to address gaps in evacuation studies. …

Integrating Therapy Into Play: Stand-On Ride-On For A Child With Cerebral Palsy, Kira Flanagan

UNF Graduate Theses and Dissertations

This study focuses on the development of an adaptive ride-on toy specifically designed for a 2.5-year-old child with spastic diplegic cerebral palsy. As a feasibility study, the primary objective of this innovative device is to enhance motor function, foster autonomy, and improve the overall quality of life for the child. The Power Mobility Device (PMD) integrates actuation and steering modifications, and a harness mechanism tailored to meet the child's unique needs. Comprehensive assessments of the child's spatiotemporal gait characteristics were conducted before and after a three-month usage period. The results reveal significant improvements in the child's ability to control dynamic …

Is Trust A Zero-Sum Game? What Happens When Institutional Sources Get It Wrong, Andrew Dawson

Theses and Dissertations (Comprehensive)

In the wake of the COVID-19 pandemic, trust in mainstream institutions is on the decline while people are increasingly turning to alternative media and conspiracy theories. Previous research has suggested that these trends may be linked, but the exact nature of the relationship is unclear. In a fractured informational environment, is trust a neutral process, where each source is judged independently, or is it in fact a zero-sum competition, where a loss for one side is a gain for the other? Across three experimental studies (N = 2,951) we examined how people react when a source makes a serious error, …

Freedom Of Emotional Expression: Exploring The Effects Of Emotional Expression Restriction On Marginalized Identities, Erik Caceros

Theses and Dissertations (Comprehensive)

Across two studies we examined the relation between emotional expression restriction – perceiving that others restrict one’s freedom to determine how they express their authentic emotions– on people’s emotion regulation strategies and their well-being. In cross-sectional Study 1 (N = 438), people of colour felt significantly greater collective and personal emotional expression restriction relative to White people suggesting that feelings of emotional expression restriction are more prevalent among members of marginalized versus dominant groups. However, among both groups, perceiving collective emotional expression restriction was significantly associated with greater feelings of personal emotional restriction, which in turn, was related to the …

Virtual Justice?: An Analysis Of Access To Court For People Experiencing Homelessness, Kaitlin Humer

Theses and Dissertations (Comprehensive)

Homelessness in Canada remains a wicked social problem that often intersects with compounding forms of marginalization. The criminalization of homelessness and living life in the public sphere explain, in part, why this population is likely to interact with the criminal justice system. Following the onset of the pandemic, the courts were forced to modernize and embrace digital technologies to maintain operations. Now four years since these changes, there are no signs of turning back and the court system is continuing forward with a hybrid model. Despite this, there is minimal research on the impact of virtual court proceedings on people …

“Are We Truly Disruptors?” A Thematic Analysis Of Two Canadian Teachers Disrupting The Status Quo In Their Classrooms, V Pereira

Theses and Dissertations (Comprehensive)

This critical qualitative study looked to better understand the education system as an oppressive force, as well as highlight the strategies current Canadian teachers use to resist racism and colonialism in their classrooms. Using an inductive thematic analysis framework, my data sample consisted of 9 episodes from the podcast series The Chey and Pav Show: Teachers Talking Teaching featuring Toronto-based educators Chey Cheney and Pav (Pawan) Wander. The analysis identified two overarching themes pertaining to Pedagogy and Subject Content. The findings indicated that the educators have undergone a personal journey of social justice learning consisting of reflectivity and accountability, which …

Exposing White Supremacist Ideologies: How Awareness Influences Beliefs In Western Bc's White Working Class, Jessa Paddison

Theses and Dissertations (Comprehensive)

Theodore Allen posits that the white working class plays a pivotal role in anti-racist and anti-capitalist movements. The capitalist system, he argues, sustains itself by fostering an identification with whiteness among the white working class, which impedes alliances across racial lines and perpetuates ignorance regarding capitalism's limitations. This qualitative study seeks to explore the potential for disrupting white supremacist ideologies among white working-class individuals through heightened awareness of whiteness. Grounded in Critical Race Theory (CRT) and Critical whiteness Studies (CwS), the research aims to expose these ideologies by fostering critical reflection and anti-racist behaviours. The study employs a comparative approach …

Parental Evaluations And Choice Of Math Apps For Their Young Children: Exploring The Impact Of Individual Differences, Nicola Urquhart

Theses and Dissertations (Comprehensive)

Well-designed math apps can have positive effects on young children’s math abilities (Bang et al., 2023; Griffith et al., 2019; Outhwaite et al., 2023), but research indicates that many commercially available math apps are not well designed (Dubé et al., 2019; Meyer et al., 2021). Studies also find that parents struggle to identify relevant features from app store descriptions (Montazami et al., 2022; Pearson et al., 2023). The purpose of the present research was to investigate how parents evaluate the apps themselves, and to test whether individual differences can affect parental app evaluations and decisions. In two parts of Study …

Social Media News Consumption By College Students Using The Elaboration Likelihood Model, Colin Horning

Dissertations and Theses @ UNI

Social media usage has become a cornerstone of the everyday lives of Americans. From the years 2012 through 2021, the percentage of U.S. adults who say they use the social media platforms of YouTube, Facebook, Instagram, TikTok, Reddit, X/Twitter and Snapchat have grown exponentially, according to data from the Pew Research Center (Auxier & Anderson, 2021). Primarily among young people (those age 18-29) social media growth share has been the most prevalent, with this age range being mostly made up of Millennials and Generation Z (or Gen Z). The same Pew Research study found stark differences in the social media …

Haunting Euramerican Memories: Rhetorical Haunting And The Diffuse Memory Of The Dakota 38+2, Noel Keil

Dissertations and Theses @ UNI

No abstract provided.

How Pizza And Stickers Drove My Kids To Read And Kept Them Reading, Tiya Montaño

Graduate Research Papers

Walk into any English/Language Arts (ELA) classroom across the country and you will find books on bookshelves, students on computers or cellphones, and a teacher struggling to garner the attention of their students long enough to make it through the short story, poem, or novel they are reading. This has become an all too familiar image that ELA teachers struggle with. Why won’t the students engage? Are the readings too difficult? Are the readings too boring? Am I teaching them all wrong? All these questions and more fly through our brains as they work towards trying to get the students …