Digital Commons Network^™

Examining The Relationships Among Land Surface Temperature, Surface Urban Heat Islands, Land Cover, And Societal Impacts In The Miami Metropolitan Statistical Area, Alanna D. Shapiro

Electronic Theses and Dissertations

Surface Urban Heat Islands (SUHI) and Land Surface Temperature (LST) are important to study because they can have large impacts on human and environmental health and well-being. The research described in this dissertation includes three separate but related studies of SUHI and LST. The first study evaluates historic LST trends in a multiscalar view and examines the impact of environmental and socioeconomic explanatory variables on LST. Results show that NDVI and impervious surfaces are significant explanatory variables for the dependent variable LST. The rate of change (RoC) of each of the regression models ranges between 0.29oC/decade and 1.56oC/decade. The second …

A Multifactorial Approach To Improve Piglet Health And Survival, Aryeri Stephanie Bardales Castellanos

Electronic Theses and Dissertations

Pre-weaning mortality (PWM) remains a significant challenge in modern swine production systems, particularly in the context of hyper prolific sows. Although genetic selection has successfully increased litter sizes, these advancements have also intensified physiological stress on sows and increased the vulnerability of neonatal piglets. The majority of PWM occurs within the first 72 hours postpartum, with crushing by the sow as the leading cause of death. Additionally, iron deficiency anemia remains one of the most widespread nutritional disorders in piglets, further compromising survival, immune function, and growth. This thesis adopts a multifactorial approach to evaluate two management interventions aimed at …

Developing Proportional Hazards Mixture Cure Models And Predicting Risk For Persons With End-Stage Kidney Disease, Nathan Meyer

Electronic Theses and Dissertations

Traditional survival analysis techniques assume that all individuals will eventually experience the event of interest. This is as opposed to allowing for a subset of cured individuals. Hence, we consider a mixture cure model that can allow a subset of people to be cured of the disease and will never experience the event of interest. This gives a more accurate interpretation of survivability by analyzing both the shortand long-term effects of a set of variables on the individuals’ survival probabilities. However, the cure status is considered an unknown variable. Thus, the expectationmaximization algorithm is required to estimate this latent variable …

What Do We Get Out Of Our Entertainment? Empirically Determining The Differences Between Narrative Engagement And Flow Using Video Games, Lars Wagener

Electronic Theses and Dissertations

Immersion is an important aspect of entertainment media because it both drives the use of media and heightens one’s experience with that media (Nilsson et al., 2016). There are three core aspects of immersion. These aspects are (1) narrative engagement, (2) flow, and (3) enjoyment. This study set out to determine whether these aspects are statistically distinct from one another when observed in video games. The result indicated that these aspects were distinct from one another when examined through a structural equation model. This indicates that creating an overarching immersion variable that combines the different aspects of immersion may not …

Impact Of Automated Controlled Tile Drainage On Field Discharge Water, Soil Moisture, And Crop Yield In Southeastern South Dakota, Joshua Becker

Electronic Theses and Dissertations

Automated controlled tile drainage is an innovative approach to water management, using dynamic weir settings programmed to drain water out of the tile system if it encroaches into the root zone at pre-programmed depths and duration. While past studies have indicated potential yield and water quality benefits of controlled drainage, there has been very little research into the performance of automated controlled drainage. In addition to overall performance, there is a gap in knowledge of management settings to optimize yield and water quality benefits. Two experiments, one plot-scale and one modeling, were conducted to assess the impact of automated controlled …

Large Scale Crop Damage Mapping Using Optical And Sar Satellite Data Fusion And Deep Learning, Santosh Subedi

Electronic Theses and Dissertations

No abstract provided.

Mechanisms Leading To Cell Survival Through Membrane Repair In Pyroptosis, Prafulla Shrestha

Electronic Theses and Dissertations

No abstract provided.

Exploring The Role Of Clinical And Social Factors In Predicting All-Cause Mortality In End-Stage Kidney Disease Patients: A Machine Learning Framework, Addy Smith

Electronic Theses and Dissertations

No abstract provided.

Management Strategies To Improve Gastrointestinal Health And Productivity Of Native And Dairy-Derived Steers Fed In Confinement, Becca B. Grimes Francis

Electronic Theses and Dissertations

The objective of this dissertation was to evaluate strategies to mitigate metabolic disorders in confinement fed steers. The first study was conducted on yearling beef steers to investigate the effect of a rumen buffer, calcium magnesium carbonate (CMC), when fed with or without tylosin phosphate (TYL), on growth performance, rumination activity and liver abscess prevalence. Supplementation of a rumen buffer was not an effective alternative to a feed-grade antimicrobial for the control of liver abscesses in beef steers. Supplementation of CMC reduced DMI, thus negatively influencing BW and ADG. No associative effects of CMC and TYL were observed for any …

Impact Of Natural Feed Additives And Monensin Sodium On Growth Performance In Feedlot Cattle, Thiago Lauro Maia Ribeiro

Electronic Theses and Dissertations

The objective of this dissertation was to investigate how phytogenic feed additives and a pulse feeding monensin sodium strategy would affect growth performance in the receiving and finishing feedlot phases. Three randomized complete block design feedlot experiments and one pooled analysis were conducted to determine the effects of the feed additives and management strategies used in newly weaned and finishing beef cattle. The objective of these experiments were 1) determine if a blend of capsicum oleoresin, clove essential oil, and garlic essential oil (CCG) influences cattle performance, sera metabolites or health outcomes during the feedlot receiving phase; 2) determine if …

In The Footsteps Of Moose: Using Non-Invasive Techniques To Identify Cause-Specific Calf Mortalities And Evaluate Moose (Alces Alces) Movements Pertaining To Mineral Lick Locations On Ancestral Lands Of The Grand Portage Ojibwe, Anna B. Weesies

Electronic Theses and Dissertations

Following a sharp moose (Alces alces; mooz, Anishinaabemowin, Ojibwe language) population decline in northeastern Minnesota during the early 2000s, the Grand Portage Band of Lake Superior Chippewa initiated a long-term moose collaring effort to assess survival and mortality causes. Moose are a culturally important species to the Band, with annual subsistence hunts held on the Reservation and adjacent 1854 Ceded Territory. Continued research guides culturally appropriate management decisions aimed at bolstering calf and adult survival, helping to preserve this moose in Minnesota today and for subsequent generations. Chapter 1 identifies cause-specific calf mortality rates in this multi-predator system using minimally …

Slum Area Detection In Dhaka City, Bangladesh, Using Satellite Remote Sensing And Deep Learning, Soubhoon Sadeq Shinjini

Electronic Theses and Dissertations

Dhaka City, a rapidly growing megacity and high-density developing area in Bangladesh, faces numerous urbanization challenges. Among these, informal settlements or slum areas pose serious concerns for authorities and policymakers striving to improve living conditions for slum dwellers. Dhaka City’s slums are characterized by high-density, one- or two-story structures made of low-cost materials, often located adjacent to natural water bodies and lacking basic public infrastructure (Ahmed 2014; Iqbal 2014; Jahan 2012). The need for accurate and up-to-date data on these settlements is crucial for researchers and policymakers, particularly for implementing slum upgradation and resettlement programs. However, traditional field surveys for …

Characterizing A Free-Roaming Cat Population To Predict Predation Of Threatened Species In An Island Ecosystem, Sarah Gheida

Electronic Theses and Dissertations

No abstract provided.

An Integrated Wetland Condition Index And Environmental Metric Framework For The Prairie Pothole Region, Mercedes L. Batalla

Electronic Theses and Dissertations

The USDA-NRCS Agricultural Conservation Easement Program (ACEP) assists landowners with protecting, restoring, and enhancing wetlands. Evaluating wetland conservation efforts is crucial for informing future management decisions. However, assessment frameworks vary across regions and among stakeholders. The Prairie Pothole Region is an ecologically unique landscape characterized by its abundance of wetlands that provide important ecosystem services. To evaluate wetlands enrolled in ACEP, I sampled forty-five semi-permanent wetlands in the Prairie Pothole Region from July – August 2023 and 2024. I selected and sampled twenty-six wetlands enrolled in ACEP. Nineteen additional wetlands not enrolled in ACEP were also sampled; these included nine …

Effects Of Peel Angle And Strain Rate On The Bond Between Frcm Composite And Concrete Substrate, Lucas Robert Gervais

Electronic Theses and Dissertations

Fiber-reinforced cementitious matrix (FRCM) composites have gained increasing attention for the rehabilitation and strengthening of concrete and masonry structures due to their favorable mechanical properties, compatibility with existing substrates, and ease of application. The effectiveness of any strengthening procedure depends on the quality of the bond between the external reinforcement and the substrate, ensuring efficient stress transfer and enabling the system to reach its ultimate capacity without premature debonding. While research has focused on the bond performance of FRCM systems under pure shear loading and quasi-static, low strain rate conditions, the effects of mixed-mode loading and high strain rates representative …

Naming Abilities In Aging Monolinguals And Bilinguals: Longitudinal Analyses Of The Multilingual Naming Test, Kyara Y. Velez

Electronic Theses and Dissertations

Individuals who can speak more than one language may score lower than monolinguals on verbal naming tasks. The Multilingual Naming Task (MINT) is a 32-item assessment that is used at the Alzheimer’s Disease Research Center in the USA. This study looks at the impact of monolingualism and bilingualism on language abilities over three years in three clinical groups (cognitively normal, mild cognitive impairment, and dementia), using the MINT as a measure. The results show that bilingual individuals perform worse on the MINT than monolinguals at each time point, after controlling for demographic factors; however, there is no difference between language …

Mineralization, Characterization And Selective Degradation Of Lignocellulosic Biocomposite Materials, Steven A. Soini

Electronic Theses and Dissertations

Developing novel functional materials, chemicals and biofuels from renewable plant sources has become a main area of focus within material science. The biosphere contains naturally occurring polymers that can be harvested to this end. Lignocellulosic materials are an important class of plant biomass consisting of three main components, cellulose, hemicellulose, and lignin. Wood has an inherent 3D hierarchical structure ranging from the nano- to bulk levels of organization, thereby achieving excellent mechanical properties while maintaining high porosity and low specific density. It carries significant promise for the production of chemicals, refinement of biofuels, and the development of novel functional materials. …

Covid-19, Business Resilience, And Government Contracting: Did The Paycheck Protection Program (Ppp) Impact The Disaster Resilience Of Small Disadvantaged Businesses After Covid-19? The Case Of Government Contracting In The United States., Jean-Claude M. Ndongo

Electronic Theses and Dissertations

This dissertation examines the disaster resilience of disadvantaged small businesses that have engaged in contracting activities with the U.S. federal government from 2018 to 2023. Federal government agencies procure goods and services from small businesses in the private sector through contracts that allow those businesses to be competitive in the market and overcome the impact of disasters on their activities. The notion of disaster resilience has traditionally focused on natural hazards like wildfires, earthquakes, tornadoes, or hurricanes; however, lately, it has been increasingly applied to diverse contexts. Business resilience to disasters refers to businesses' ability to return to their pre-disaster …

Things Goin’ On: Hierarchical Order, Olivia Rachel Austin

Electronic Theses and Dissertations

Things Goin' On: Hierarchical Order is a series of mixed media works examining power dynamics and structured relationships within human life. This body of work explores social class, gender roles, and systemic power structures through a combination of found textiles, altered objects, and diverse rendering techniques. Each piece investigates how individuals are positioned within broader social and natural systems. The works collectively encourage reflection on the universal and historical role of power dynamics in shaping human experiences and interactions.

“Ojala Que Llueva: Free Trade's Ripple Effect On Rice Farming In El Cibao, Dominican Republic", Arismendis Altagracia

Electronic Theses and Dissertations

Globalization has had a tremendous effect on agricultural communities. This study aims to understand Dominican rice farmers' methods of production, their impact on the Dominican economy, and the public health of those involved in production. Some concerns are how mass rice production affects the environment, public health, and the state's economy. The rice industry in the Dominican Republic is one of the most essential sectors due to its cultural and dietary significance. Rice contributes a substantial amount to the diet of Dominicans; its production process and nutritional profile is associated with health problems that burden an already strained public health …

Conversion Of Orange Waste To Chemically Modified Activated Carbon Adsorbent Materials For Aqueous Phase Phosphate Removal, Sierra Mugan

Electronic Theses and Dissertations

Phosphorus pollution in surface waters drives harmful algal blooms, creating ecological, public health, and economic risks. This study examined citrus processing waste as a sustainable, low-cost precursor for producing chemically modified adsorbents for phosphorus removal. Orange waste was pyrolyzed, resulting in a carbon-rich material with low ash content, as confirmed by thermogravimetric analysis. The material was modified using lanthanum chloride, iron (III) chloride, and calcium chloride at varying mass ratios and screened under standard conditions (1 mg P/L, 1 g/L dosage, 24-hour contact time). Lanthanum- and iron-modified samples demonstrated the best removal efficiencies and underwent further evaluation. The lanthanum-modified sample …

Importance Of Social Support: Buffer To Social Identity Threat In Institutions, Kaylah J. Scott

Electronic Theses and Dissertations

Due to the minority status non-white students face in higher education, they are susceptible to social identity threat (Steele & Aronson, 1996), which may lead to psychological distress. However, social support, particularly from in-groups, offsets related distress consequences, e.g., self-esteem, anxiety, and depression (Haslam et al., 2021). This study investigates social support, through collective racial socialization, as a buffer for social identity threats to minority college students. I investigated Hispanics and Black undergraduates' self-esteem, using the Rosenberg Self-Esteem Scale (Rosenberg, 1979), before and after stereotype threat, with participants in minority-centered organizations as the moderator. Results revealed that there was a …

Fictional Prophecies: How Kazuo Ishiguro’S Never Let Me Go And Olivia Wilde’S Don’T Worry Darling Foreshadow The Threats Of Biotech And Metaverse Realities, Taylor Pack

Electronic Theses and Dissertations

This thesis intends to embrace conversations about technological advancements and create space for examining the ways in which popular technologies of the 2020s are the beginning of a dangerous future for marginalized bodies if gone unchecked and under-regulated. This paper investigates the ways in which modern forms of technology are at risk of mimicking the novel Never Let Me Go by Kazuo Ishiguro and the film Don’t Worry Darling, directed by Olivia Wilde dystopias and argues the need for more conscious consumerism of technology and media alike to acknowledge the ways in which the control of women’s bodies is a …

Human-Ai Interaction In Driving Behavior Analysis: Machine Learning And Pattern Mining For The Unobtrusive Cognitive Assessment, Sonia Moshfeghi

Electronic Theses and Dissertations

Creating unobtrusive, intelligent sensing systems that can be embedded into daily life and assess changes in the physical and cognitive functions of people has garnered significant attention. This dissertation presents a data-driven pattern recognition framework that integrates human-AI interaction and machine learning to analyze and quantify cognitive decline in older drivers based on the data stream of their driving data. This study harnesses real in-vehicle sensing data collected from +65 older drivers. Various AI-enabled data analytics modeling techniques are developed and tested to understand the driving patterns of older drivers, the relations between driving data and their cognitive functions, and …

“This Generation Of Women Is Finished”: Misogyny As Social Bonding On Social Media And Patriarchal Constructions Of Femininity, Emma Mierzejewski

Electronic Theses and Dissertations

This thesis explores online discourse between users on social media platforms, specifically Instagram, in an effort to better understand the patriarchal influence on American social culture. Users on the platform regularly write off misogynistic comments as simply “dark humor” or an extreme expression of one’s “freedom of speech.” At the same time, supportive comments are also influenced by those same misogynistic expectations. I argue that misogynistic thinking in comments and a willingness to uphold them for social bonding provides deeper insights into our society’s attitudes towards women, their roles, and conceptions of femininity in general. I conducted a content analysis …

The Changing Roles Of Elementary School Principals, Ernie Lozano

Electronic Theses and Dissertations

The role of the elementary school principal has changed throughout its history. The role has shifted from primarily a managerial role to an instructional leadership role, to the more current role of a multi-faceted operational leader. Recent events, from the Covid-19 pandemic to highly publicized school shootings, has added additional responsibilities to the current role of the principal. The current high-stakes accountability to ensure all students are learning has also added an increased amount of pressure on elementary school principals. The ability to effectively manage both the operational and instructional roles has created stress and anxiety on elementary school principals. …

Joy In Teaching: Examining Teachers’ Perceived Experiences Of Choice, Self-Efficacy, And Sense Of Belonging, Shellie Hennings-Donow

Electronic Theses and Dissertations

Teacher joy is a critical yet often overlooked factor influencing teacher retention, instructional effectiveness, and student outcomes. This study explores how teachers describe their experiences of joy in the workplace, focusing on the roles of choice, self-efficacy, and belonging. Grounded in Self-Determination Theory and Attribution Theory, this research examines the extent to which teachers’ perceived autonomy, competence, and relational support contribute to teachers’ professional fulfillment. Through qualitative methods, including in-depth interviews and thematic analysis, this study captures the perceptions of educators across diverse school settings. Findings reveal that teachers experience the highest levels of joy when they have meaningful autonomy …

A Legacy Of Fire: Alma Bridwell White, The Second Wave Klan And Complexities Of Religion, Race And Feminism, Ellis Hall

Electronic Theses and Dissertations

In the shadow of the KKK stood an unexpected force: women. At the crossroads of religious fundamentalism and racial extremism was Alma Bridwell White, a pioneering yet controversial figure whose religious leadership intertwined with her avid support for the Klan. This research examines how White used both pulpit and platform to advance the Klan’s image of ‘Americanism’ defined by racial purity and religious intolerance, and promote early feminist ideals, whilst still being reliant on male figures. This research enables an exploration of how female members of the KKK were able to leverage their social, political and religious influence to promote …

Exploring Emotional Awareness Through Interactive Design, Mona Gandomkar

Electronic Theses and Dissertations

This research was inspired by my emotional journey after relocating to the United States. Navigating a new culture, language barriers, and unfamiliar routines brought a complex mix of emotions. These experiences led me to begin to better understand and manage my emotional responses. That process revealed the importance of emotional awareness and became the foundation for my exploration into how design can help individuals recognize and engage with their emotions more meaningfully.

Emotions are significant in human life, from social relationships to decision-making. However, many people fail to understand their emotions or how to control them. Individuals experience emotions differently, …

Ethnozoological Insights For Wildlife Conservation: Exploring Past & Present Uses Of Wild Animals Among Kenya’S Ethnic Groups, Anita Zahra Field

Electronic Theses and Dissertations

Kenya’s conservation efforts lack adequate involvement of local communities, who play a vital role as people who use the natural resources. These communities also have limited access to, and benefits from, these resources, highlighting the need for greater inclusivity. Therefore, I used ethnographic interviews to elicit relational values that can potentially increase understanding between all stakeholders. My objective was to explore the historical and contemporary uses of wild animals among diverse ethnic groups, examining any changes over time and identifying the catalysts driving these shifts. I interviewed 30 individuals from 10 ethnic groups in Laikipia, Samburu, Marsabit, and Kwale counties, …