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Climate Prediction As An Adaptive Force-Multiplier: Reasons For Hope In A Rapidly Changing World, Matthew D. Laplante

All Graduate Theses and Dissertations, Fall 2023 to Present

It's not unreasonable to feel pessimistic about our future under climate change. But "believing the science" doesn't require you to accept that we are headed toward apocalypse. It is true that human-caused climate change is real, it is underway, and our societies face many increased risks because of it. But that's just part of what climate science tells us about our future world. This same field is responsible for the recent and rapid development of tools and techniques that permit the identification of patterns in our oceans and atmosphere that will aid us in making increasingly accurate predictions about climate—the …

High-Throughput Phenotyping Of Early Generation Small Grains Breeding Lines To Indirectly Select For Grain Yield, Dalton Jones

All Graduate Theses and Dissertations, Fall 2023 to Present

In small grains breeding programs, breeders aim to develop better varieties by selecting for important traits like grain yield. However, it takes many years before yield can be measured because several generations of selection are required to fix lines and increase sufficient seed for yield measurements. This process can be slow and expensive

High-throughput phenotyping (HTP) is a modern approach that can increase breeding efficiency by leveraging technology to quickly measure secondary traits which can be used to indirectly select for important traits in crop plants. For example, researchers can use cameras on unmanned aerial vehicles (UAVs, i.e., drones) to …

Novel Horticultural Approaches For Reduced Gravity And Controlled Environment Agriculture, Sarah Elizabeth Schreck

All Graduate Theses and Dissertations, Fall 2023 to Present

On July 16, 1969, Apollo 11 achieved the first successful moon landing, marking a significant milestone in human space exploration. This historic moment effectively ended the space race between the United States and the Soviet Union, and since then, countries around the world have continued to advance their space programs. While the space race has evolved, the next major challenge lies in sending humans to Mars—a journey that could take 6 to 9 months each way, presenting numerous challenges, including the critical issue of nutritional sustainment for the crew.

This thesis addresses key aspects of a broader effort to support …

Here Be Dragons: The Barriers Of Korean American Female Leaders In Secondary Schools, Joyce A. Kim

Dissertations

In K-12 public schools, there is a shortage of Korean American women in school leadership roles at the secondary level. This phenomenological study explores the contributing factors to this lack of representation, how institutions can recruit and retain Korean American female leaders, and how school systems can better support them. This study examines the leadership experiences of eight Korean American women. It utilizes the socio-political contexts of Korean patriarchy, the Model Minority Myth, and mentorship to help frame the problem of existing barriers. This study explores the following questions: What factors hinder Korean American women in school leadership? What structural …

Shades Of Families: Exploring Intersectionalities Of Cross-Cultural Parenting Experiences In The U.S., Shu-Han Huang

Dissertations

As multiracial and multicultural families continue to grow across the United States, parents must navigate evolving cultural identities, systemic inequities, and increasing social and emotional pressures. These realities underscore the need for parenting resources that are both culturally responsive and emotionally supportive. This transcendental phenomenological study explored the lived experiences of 11 cross-cultural parents raising children in the U.S., with a focus on how intersecting identities and systemic forces shape parenting practices.

Guided by Critical Multiracial Theory and Intersectionality Theory, this study investigated parenting at the personal, familial, societal, and structural levels. Data were collected through semi-structured interviews and analyzed …

Applications Of Microscopy In Neuroscience: A Review Of Imaging And Analysis Techniques, Natasha Mayorga

Harriet L Wilkes Honors College Theses 2020 - Present

Advancements in microscopy and computational analysis have revolutionized the way neuroscientists study the brain at the molecular and cellular levels. In neuroscience research, microscopy techniques have evolved to enable detailed molecular labeling and visualization, generating insight into neuronal morphology and operational dynamics. These highly capable imaging techniques are essential for investigating how neurons interact and form networks, as well as how various molecular markers behave in response to stimuli or during disease processes. Moving beyond qualitative insight, the development of computational analysis methods for microscopy has enabled scientists to draw quantifiable conclusions from their image data. In the context of …

Whole-Brain Mapping Of Neuronal Interleukin-1 Tpe 1 Receptor In The Mouse Brain, Gabriella Maxey

Harriet L Wilkes Honors College Theses 2020 - Present

The pro-inflammatory cytokine interleukin-1 (IL-1) has diverse functions within the brain such as facilitating memory and regulating sleep, yet is linked to various psychopathological disorders including depression, anxiety, and PTSD. The IL-1 type 1 receptor (IL-1R1) is the sole receptor of IL-1 and is predominantly expressed on non-neuronal cell types in the brain; however, the existence of IL-1R1 on neurons has been debated due to inconsistent mapping attempts. Here, we generated a specific atlas of neuronal IL-1R1 (nIL-1R1) distribution throughout the brain in global and glutamatergic-neuron-specific IL-1R1 reporter mice. Using immunohistochemical labeling and the QUINT workflow, we show nIL-1R1 is …

A Trauma-Informed Study Of Combat-Related Loss: Sibling Descriptions Of Traumatic Grief And Bereavement Support, Ashleigh Carlin

Doctoral Dissertations and Projects

The purpose of this qualitative descriptive study was to explore how individuals in the United States describe their grief and the bereavement support they have received after experiencing the traumatic loss of a military sibling(s) due to hostile action while engaged in combat operations. Cohen and Wills' social support model, which demonstrates how social connections buffer the effects of stress and loss, guided this study to explain how the role of bereavement support, or lack thereof, influenced how surviving military siblings process their grief. The study sought to elicit in-depth responses that provided rich insights and descriptions. Data collection involved …

The Use Of An Online Orientation At A For-Profit Higher Education Institution To Support And Retain Online Adult Learners: A Qualitative Case Study, Logan Robb

Doctoral Dissertations and Projects

The purpose of this qualitative holistic case study was to explore how support staff, faculty, and online adult learners at a FPHEI located in Pennsylvania perceive the use of an online orientation as a proactive institutional support strategy to increase the preparedness of online adult learners and potentially improve their retention rates. The theory guiding this study was Tinto’s theory of student departure. The central research question that was guiding this study was: How do support staff, faculty, and online adult learners at one FPHEI perceive the effectiveness of an online orientation as a proactive institutional support strategy to enhance …

Nursing Faculty Experiences Of Teaching Dementia Care: A Transcendental Phenomenological Study, Jeannie Simpson

Doctoral Dissertations and Projects

The purpose of this phenomenological study was to explore the experiences of nursing faculty teaching dementia care to nursing students in Texas. The theory guiding this study was Kolb’s experiential learning theory as it offers a structured framework for examining how experiences lead to learning. This theory also introduced the concept of the Experiential Educator profile, specifically delineating the role of educators in facilitating knowledge acquisition (Kolb, 2014). This study bridged the gap in existing literature regarding the experiences of nursing faculty in teaching dementia care to nursing students and provided a comprehensive look at dementia education in nursing schools. …

Exploring Trauma And African American Male Victims Of Intimate Partner Violence, Paige Shaunta Denigi Simon

Doctoral Dissertations and Projects

This qualitative phenomenological study aimed to examine the experiences of heterosexual African American men from Georgia who are victims of IPV. This study aims to identify barriers that hinder survivors from reporting their trauma and seeking mental health services and resources. The theoretical framework utilized for this research study is Intersectional Theory. Using Intersectionality as a theoretical lens for this research study allows for a greater understanding of the multiple components and experiences that shape the identity of the African American man. This qualitative phenomenological study answered the following central research questions: “In what ways do African American male victims …

Virtual Reality In Trauma Therapy: Clinicians Treating Posttraumatic Stress Disorder (Ptsd) With Technological Resources In Minneapolis, Minnesota, Thomas E. Covington

Doctoral Dissertations and Projects

This dissertation aims to establish how virtual reality (VR) integrated with other technological devices in the management of posttraumatic stress disorder (PTSD). The technology will lay the foundation for how it can establish controlled and safe VR contexts that can help patients address traumatizing occurrences. I will also stress the use of virtual therapists through online tools and applications, giving access to those who cannot attend meetings in person. Also, I will examine the individualization of the treatment process through the application of digital technologies and their potential effects on the outcomes of the therapeutic process. The research also examines …

Cytotoxicity And Surface Area Analysis Of Silver Nanoparticles Encapsulated In Liposomes, Pvp, And Bsa: Effects On Caco-2 And U251 Cells, Rita Byrne, Vinayak Sharma, Bilal Javed, Muhammad Zia Ul Haq, Ahmed Barhoum, Furong Tian

Research Outputs: 2025-Present

No abstract provided.

4-H Camps: Complexities In Adult-Youth Dynamics, Stephanie Femrite, Rebecca Mott, Steven Krauss

Journal of Youth Development

Summer camp programs provide adolescent counselors with opportunities to work alongside adult staff, aiming to develop critical skills such as communication, responsibility, independence, and teamwork. Growing research supports the value of camp-based developmental relationships through youth-adult partnerships. However, tensions often arise as adults struggle to share power while youth question their roles as partners. Few studies have investigated the role of expectations and realities in camps that promote a youth-adult partnership approach. To address this gap, a qualitative study was conducted to explore the role perceptions of 14- to 18-year-old camp counselors and program directors’ expectations of counselors’ roles in …

Utilization And Perception Of Individual Performance Assessments Among Instrumental Music Educators In Northeastern Pennsylvania, Thomas Bassett

Doctoral Dissertations and Projects

This qualitative grounded theory study aimed to develop a theory explaining how secondary instrumental music educators in Northeastern Pennsylvania select, implement, and perceive performance assessments. Teachers need actionable data to determine the next steps in the learning process. The study design included twelve semi-structured interviews of Pennsylvania-certified music educators and a content analysis of any scoring tools or rubrics that they provided. The analysis process included open, axial, and thematic coding with the development of the core category and theory. Despite some prior research into performance assessments in music education, the literature lacked research with explanatory power over teachers’ assessment …

Comprehensive Global Data Set Of Uniformly Processed Shear-Wave Splitting Measurements, Jonathan Wolf, Thorsten W. Becker, Edward Garnero, Kelly H. Liu, John D. West

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Seismic anisotropy can inform us about convective flow in the mantle. Shear waves traveling through azimuthally anisotropic regions split into fast and slow pulses, and measuring the resulting shear-wave splitting provides some of the most direct insights into Earth's interior dynamics. Shear-wave splitting is a constraint for path-averaged azimuthal anisotropy and is often studied regionally. Global compilations of these measurements also exist. Such compilations include measurements obtained using different data processing methodologies (e.g., filtering), which do not necessarily yield identical results, and reproducing a number of studies can be challenging given that not all provide the required information, for example, …

Population Dynamics, Life History Characteristics, And Environmental Drivers Of Neomysis Americana In The Damariscotta River Estuary, Allison Fogg Ms '25

All Student Scholarship

Mysid shrimp (Neomysis americana) play a pivotal role in estuarine food webs by linking primary producers to higher trophic levels and serving as an important food source for commercially valuable fish. Despite their ecological significance, mysids are often under sampled, leading to gaps in our understanding of their population dynamics and life history traits. My study investigated N. americana over a full year (June 2023 to May 2024) in the temperate Damariscotta River Estuary in Maine. My research focused on how environmental factors such as temperature, turbidity, salinity, chlorophyll-a, and zooplankton biomass affect mysid density and reproduction. Temperature emerged as …

Injury Trends And Patterns In Collegiate Football: A Retrospective Analysis Of Position-Specific Injuries At A Division I College, Cassidy Cave

All Student Scholarship

Injury surveillance in collegiate football provides critical insight for the identification of trends, risk factors, and prevention strategies. While national databases have offered foundational knowledge, program-specific analysis remains essential for targeted clinical care. A retrospective analysis was conducted on injuries sustained during the 2024 season by a NCAA Division I collegiate football team, with emphasis on injury type, affected body part, and athlete position. Data was collected from internal injury reports spanning from August through November of 2024, including all orthopedic injuries and general medical concerns evaluated by the sports medicine team during official team activities. A total of 293 …

The Inclusion Of Goal Setting In Promoting Exercise Adherence In Adolescent Athletes Who Sustained A Concussion: A Critically Appraised Topic, Caitlin Culhane

All Student Scholarship

Introduction/clinical scenario: Almost 2 million youth in the US sustain a concussion every year with several of them experiencing persistent post concussive symptoms. Past intervention has suggested that rest until symptom free is the best approach, while current findings suggest this approach is outdated and early exercise can help with a faster recovery. Several studies have researched the effects of goal setting strategies in different populations however there is a need for study in adolescent athletes. Focused clinical question: Is goal setting beneficial in promoting exercise adherence for adolescent athletes who sustained a sports related concussion? Summary of key findings: …

In Competitive Athletes, Does Adding Psychological Rest Compared To Regular Training Reduce Burnout: A Critically Appraised Topic, Amy A. Umutoni

All Student Scholarship

Burnout among competitive athletes is a multifaceted syndrome characterized by emotional and physical exhaustion, a diminished sense of accomplishment, and sport devaluation. 1 The rigorous demands of training and competition can lead to chronic stress, potentially culminating in burnout. While physical rest is a well-established component of athletic recovery, the role of psychological rest in mitigating burnout is gaining attention. 2 Psychological rest encompasses mental breaks and activities that promote cognitive relaxation, potentially aiding in recovery and performance. Emerging evidence also suggests that structured psychological interventions can enhance emotional well-being and resilience among athletes, particularly those coping with injuries. In …

Determinants Of Trading Prices In State-Owned Asset And Equity Transactions: An Empirical Analysis From China, Lixiao Chen

Dissertations and Theses Collection (Open Access)

This thesis examines the determinants of pricing outcomes in state-owned asset transactions using a comprehensive dataset of 3,638 transactions from a major transitional economy. Contrary to conventional expectations, we find that fixed assets consistently receive less favorable pricing compared to equity assets, with significantly lower odds of trading above professional valuation and higher odds of trading below valuation. This pattern persists across multiple specifications and remains robust to propensity score matching approaches that address selection concerns. I further demonstrate that state-owned buyers secure significant advantages in transaction pricing, with dramatically lower odds of paying premiums over valuation or listing prices …

Research On The Structural Antecedents And Contingencies Of Fluid Team Performance, Xiaodong Zhang

Dissertations and Theses Collection (Open Access)

In response to rapidly evolving markets and the pursuit of organizational agility, fluid teams—characterized by dynamic membership and flexible structures—have become prevalent as a key organizational form for addressing complex tasks and uncertainty. However, inherent challenges such as frequent member mobility and multiple project participation pose significant management difficulties and performance risks, including project delays and cost overruns, particularly evident in China's fintech sector. While existing research has begun examining fluid teams, systematic investigation into their structural antecedents and performance mechanisms—especially their contingencies across contexts—remains limited.

The study examines structural antecedents and contingencies of fluid team performance through a mixed-methods …

Environmental Influences Of Zero-Sum Thinking And Its Outcome, Edison Sora Tan

Dissertations and Theses Collection (Open Access)

Zero-sum thinking refers to a generalized mentality or a belief that one person’s gain can only come at the expense of another person’s loss. In this research, I argue that people’s zero-sum thinking is, at least in part, influenced by the interacting characteristics of the environment, namely, resource scarcity and population density. This is because resource scarcity highlights people’s resource insecurity, particularly when population density accentuates potential competition for finite resources. Consequently, zero-sum thinking reduces trust and cooperation as people reduce their commitment to potentially risky social investments. Analysis with data from a large-scale field study and ecological data provided …

Threads Of Time: A Lifespan Perspective On Temporal Simulations, Self-Continuity And Meaning In Life, Jonathan Louis Jie Sheng Chia

Dissertations and Theses Collection (Open Access)

This research investigates how temporal simulations—prospection and retrospection — influence meaning in life (MIL) through the mediating role of self-continuity, and whether these relationships vary with age. Across two studies, self-continuity mediated these associations, but the specific pathways appeared to be nuanced. In Study 1, using a correlational design, frequency of prospection and retrospection positively and negatively predicted MIL via self-continuity respectively. These indirect effects, however, became nonsignificant when accounting for personality and dispositional affect, suggesting the effects of temporal simulation frequency to be primarily driven by these individual differences. Study 2 experimentally manipulated temporal simulations. Prospection enhanced MIL through …

Disentangling User Preferences Towards Self-Interpretable Recommender Systems, Nhu Thuat Tran

Dissertations and Theses Collection (Open Access)

Understanding user preferences remains a central challenge in recommender systems due to their inherently complex, unstructured, and multi-faceted nature, exacerbated by the sparsity of user interaction data. Traditional approaches often compress user interests into a single latent vector, overlooking the fact that user preferences are typically shaped by multiple underlying factors that differ across individuals. These latent drivers are not directly observable and must be discovered through unsupervised modeling, further complicated by limited historical interactions per user.

This dissertation addresses these challenges by introducing a principled framework for multiinterest modeling, which disentangles user behaviors into multiple latent factors to better …

Tailoring Transformer-Based Deep Learning For Code Generation And Translation, Imam Nur Bani Yusuf

Dissertations and Theses Collection (Open Access)

Software is increasingly pervasive in modern society, making the effective translation of human intent into code essential. Novice programmers often struggle with domain-specific code due to limited background knowledge, while experienced developers face challenges in maintaining evolving largescale codebases. Traditional pattern-based approaches address these issues, but such approaches are task-specific and require significant adaptation for different tasks. Transformer-based models offer a more flexible alternative, as the same architecture can be tailored for diverse programming tasks.

This dissertation investigates how Transformer-based models can be customized for various code generation and translation tasks. First, it introduces Transformer-based approaches that assist end-users with …

Evaluation Of Pre-Trained Vision Language Models In Challenging Contexts, Kankan Zhou

Dissertations and Theses Collection (Open Access)

The rapid advancement and proliferation of pre-trained vision-language models (VLMs) have heralded a new era in the realm of artificial intelligence (AI), opening up unprecedented opportunities and challenges alike. This dissertation sets forth on an ambitious and comprehensive journey to critically evaluate the performance and limitations of pre-trained VLMs, particularly in complex and challenging contexts that test the bounds of their capabilities. Our focus is twofold: to rigorously assess the extent of bias embedded in these models, and to meticulously scrutinize their reasoning abilities, highlighting parallels and disparities between machine and human cognition.

We initiate our exploration with a targeted …

Glacial-Interglacial And Millennial-Scale Changes In Nitrous Oxide Emissions Pathways And Source Regions, J. A. Menking, J. E. Lee, E. J. Brook, J. Schmitt, L. Soussaintjean, H. Fischer, J. Kaiser, A. Rice

Physics Faculty Publications and Presentations

During the transition from the Last Glacial Maximum (LGM) to the Holocene, the atmospheric N2O mole fraction increased by 80 nmol mol−1. Using ice core measurements of N2O isotopomer ratios, we show that this increase was driven by increases in both nitrification and denitrification, with the relative partitioning between both production pathways depending on the assumed isotopic end‐member source signatures. Similarly, we also attribute a 35 nmol mol−1 N2O mole fraction increase during the Heinrich Stadial 4/Dansgaard Oeschger 8 (HS4/DO8) millennial‐scale event to increases in both N2O production pathways. In contrast, the 25 nmol mol−1 N2O mole fraction decrease during …

Does Moving From One-Story Building To Multi-Building Affect The Health Status Of The Elderly: Evidence From China’S Par Program, Lu Cao

Dissertations and Theses Collection (Open Access)

This study investigates the causal impact of relocating from single-story to multistory buildings on the health outcomes of elderly residents in China. Using China’s Poverty Alleviation Relocation (PAR) program as an exogenous policy shock, we employ instrumental variable and difference-in-differences approaches to establish causality. Our analysis of data from the China Health and Retirement Longitudinal Study (2011-2018) reveals a nuanced relationship between vertical living and elderly health. While relocation to multi-story buildings is associated with deterioration in self-reported physical health status, it significantly improves mental health conditions and life satisfaction among elderly movers. We identify two key mechanisms driving these …

Essays On Spatial Economics And International Trade, Yunlong Song

Dissertations and Theses Collection (Open Access)

This dissertation consists of two chapters that study the China’s spatial economy in the context of heterogenous skill workers, local capital investment, and foreign direct investment (FDI). The first chapter studies how production factor accumulations in space respond to economic shocks or events, and how those responses modify the aggregate and distributional impacts of shocks. To examine their responses and implications, we develop a dynamic spatial model that incorporates capital accumulation and skill acquisition. Focusing on China’s trade liberalization and infrastructure expansion in the early 2000s, we show that allowing for capital accumulation amplifies welfare gains and intensifies between-skill inequality, …