Digital Commons Network^™

The Aggregation Of Microplastics By Enhancing Extracellular Polymeric Substance Production In Pseudoalteromonas Sp. Ncimb 2021 To Improve Removal Efficiencies In Environmental Matrices, Janelle L. Mercer

All Theses

Microplastics (MP) are ubiquitous in the natural environment and are a growing threat due to their small size and durability. Plastics are released into the environment through improper waste management, wastewater treatment outfalls, industrial spills, agricultural runoff, and landfills. These particles breakdown into secondary MP through degradation pathways. MP, less than 5 mm, require intricate removal techniques from water systems. Filtration techniques, though viable and effective, have implementation constraints due to high cost, maintenance demands, and filter fouling. By integrating coagulation and flocculation processes prior to filtration, MP removal efficiencies can increase, while minimizing operational challenges during filtration. Extracellular polymeric …

What Makes A Cozy Game Cozy? Looking Through The Lens Of Feminism And 4e Cognition, Mary Catherine M. Wilcox

All Theses

Why do some games feel cozy, and others miss the mark, even if they are tricked out in bright colors and festooned with bows? This thesis examines the emerging genre of “cozy games” to better understand why some titles successfully evoke comfort and relaxation while others fail, despite relying on conventionally cute aesthetics or farming-sim mechanics. Although cozy games have grown rapidly in popularity over the past decade, the genre remains under-studied and is often dismissed as frivolous, reflecting the broader historical devaluation of media associated with women. Accordingly, this study argues that understanding cozy games requires examining women’s relationship …

Habitat Associations Of Small Mammals And Their Role As Sentinels For Biodiversity In The Southern Blue Ridge, Katelyn Steen

All Theses

Small mammals play important roles in healthy forests, but we still know very little about many of the rare and state-listed species living in the Blue Ridge Mountains of South Carolina. Traditional surveys are expensive and time-consuming, so we tested a newer, camera-based method called AHDriFT. From 2024 to 2026, we set up 60 camera systems across high-elevation forests to track six state-listed species: the Carolina red-backed vole, woodland jumping mouse, eastern woodrat, masked shrew, pygmy shrew, and eastern spotted skunk. We detected all six target species and conducted occupancy modeling for four. We found spotted skunk occupancy increased near …

The Impact Of State Insulin Copayment Caps On Diabetics In The United States, Ryan C. Meyer

All Theses

Insulin is a life-saving medication for people with diabetes that helps regulate blood glucose levels throughout the body. A Type 1 diabetic cannot survive without insulin, and a Type 2 diabetic’s quality of life greatly diminishes without access and use of this drug. Currently, many diabetics skip, ration, or abstain from insulin due to financial barriers. As of June 2026, 29 states have enacted insulin copayment caps for state-regulated commercial health insurance plans to reduce the financial burden of insulin costs. This study examines the impact of these caps on all commercially insured diabetics in the United States, particularly on …

Tellurium Selenide Quantum Wires Synthesized By Pulsed Laser Ablation In Liquids, Rajendra Subedi, Francisco Ruiz-Zepeda, Iono Hill, Geraldine Hallais, Etienne Herth, Gregory Guisbiers

Faculty Scholarship

Tellurium–selenide (TexSe1-x) binary alloys are promising chalcogenide systems with tunable optoelectronic properties, yet their synthesis in quantumly confined one-dimensional forms remains limited. Here, we report the synthesis of TexSe1-x quantum wires (QWs) via a two-step pulsed laser ablation in liquids (PLAL) approach, enabling surfactant-free formation of alloyed nanostructures under non-equilibrium conditions. A tellurium colloid is first generated and subsequently exposed to selenium ablation, promoting in-situ alloying through repeated plasma-bubble interactions at high repetition rate. The resulting QWs exhibit an average diameter of ~17 ± 4 nm and a length of ~475 ± 46 nm. Structural and chemical analyses (XRD, Raman, …

2026-2027 Lindenwood University Graduate Course Catalog, Lindenwood University

Course Catalogs

Lindenwood University Graduate Course Catalog

2026-2027 Lindenwood University Undergraduate Course Catalog, Lindenwood University

Course Catalogs

Lindenwood University Undergraduate Course Catalog

A Four-Year Mixed Methods Cohort Study Of Professional Learning Interventions In Teacher Education Colleges In Kenya, Tanzania, And Uganda, Nyagwegwe Wango, Nipael Mrutu, Jane Rarieya, Fortidas Bakuza

Institute for Educational Development, East Africa

In teacher professional learning reforms, maintaining pedagogical transformation is still a major problem, especially in settings with limited resources and policy transitions. During the four years that the Foundation for Learning (F4L) initiative was implemented in teacher education institutions in Kenya, Tanzania, and Uganda (2022–2025), this study looks at longitudinal patterns of improvement. The study employs a retrospective mixed-methods approach to examine two structured cycles of cohort-level data, which include interview datasets, lesson plan documents, mentoring records, questionnaire summaries, and classroom observation reports. Cycle comparisons show enhanced consistency in structured practicum feedback systems over time, better alignment between lesson objectives …

Evolution Of Propagator Wakes On The Kolbeinsey Ridge From An Integrated Geophysical Perspective, Ethan Stowell

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Oceanic lithosphere is formed following the extension and rifting of a continent, with new material generated at mid-ocean ridges. While ridges generally spread in the direction of extension, individual spreading centers are offset by perpendicular transform faults that break the ridges into individual segments. Ridge propagation, in which one ridge segment grows at the expense of another’s shortening, has been identified in global investigations as a poorly understood component of axial reorganization. This process leaves propagator wake structures composed of faults and pseudofaults visible as lows in Earth’s gravitational field, and transferred lithosphere with a distorted magnetic signature. This study …

Optimal Management Of Electric Vehicle Fast Charging Stations Via Lyapunov Optimization And Reinforcement Learning, Mohammad Hossein Abbasi

All Dissertations

The transportation sector is responsible for 28% of global energy-related emissions, with road transport accounting for most of these emissions. While electric vehicles (EVs) are essential for decarbonizing transportation, widespread adoption depends on fast, efficient charging. Fast charging reduces charging time but accelerates battery degradation, whereas slow charging increases range anxiety. In addition, fast charging stations (FCSs) impose significant stress on distribution grids, making their operation a critical challenge. Optimizing FCS operation can conflict with EV fast-charging objectives, yet existing research largely treats these problems independently despite their strong interdependence.

Current fast-charging methods focus on individual cells or small battery …

An Investigation Of The Use Of Self-Regulated Strategy Development With A Mnemonic On The Fraction Computation Performance Of Students At-Risk For Emotional/Behavioral Disorders, Melissa D. Hullett

All Dissertations

Interventions that help students organize their thinking can reduce cognitive load and support academic, behavioral, and social success. Self-Regulated Strategy Development (SRSD) is an evidence-based instructional framework that combines strategy instruction with self-regulation to promote student independence and improve student confidence. A mnemonic has been shown to help scaffold support across all content areas to the level of mastery required by Stage 4 of the SRSD framework ("Memorize It"). In mathematics, where executive functioning demands are high, interventions to scaffold content must provide the metacognitive support needed for a diverse student population. This study used a multiple-baseline design to examine …

Nanostructured Insulated Electrodes For Directed Nanoparticle Assembly: Development And Characterization, Thomas F. Burgess

All Dissertations

Nanoparticles exhibit unique properties dependent on their size, shape, and arrangement that are critical for sensing applications, such as the localized surface plasmon resonance of silver nanoparticles. Therefore, control over their assembly facilitates control over these properties. For this purpose, nanostructured insulated electrodes were developed and characterized for directed assembly of nanoparticle clusters. Electrode characterization required a new method for relative electric field quantification from electric force microscopy (EFM) measurements, implemented via an extended Hudlet model to estimate the field between the sample and the EFM probe apex. Restricting analysis to the apex – sample interaction improves spatial resolution and …

The Exploration Of One-Dimensional And Two-Dimensional Frustrated Magnetic Transition Metal Phosphates And Arsenates Via Hydrothermal Synthesis, Emily D. Williams

All Dissertations

Geometric magnetic frustration is a term that refers to magnetic spins that are “confused” or frustrated due to geometric arrangements of magnetic ions that prohibit the spins from magnetically ordering. This phenomenon has been subject to much research due to the ability to study exotic magnetic states and expand upon knowledge that would allow for materials to be implemented into quantum computing, memory storage and advanced sensor processing. One of the most exotic magnetic states, quantum spin liquids (QSL), has never been achieved but shows much promise. In the QSL state, magnetic spins do not order down to 0 K …

From Gatekeeping To Opportunity: Authentic Assessment In Natural Resources Education, Aradaryn Marsh

All Dissertations

Assessment practices play a central role in shaping how students engage with learning, demonstrate understanding, and participate in science, technology, engineering, and mathematics (STEM) education. Despite increasing calls for more inclusive and professionally relevant educational practices, undergraduate STEM assessment remains heavily dominated by traditional examinations emphasizing memorization, speed, and standardized performance. These concerns may be particularly important within Natural Resources (NR) education, a field that requires students to integrate scientific knowledge with communication, collaboration, and applied problem-solving. This dissertation explores authentic assessment within undergraduate NR education through a multi-phase investigation examining assessment prevalence, student experiences, racially marginalized (RM) student perspectives, …

Can Kinematics Specify Tool Use Affordances?, Tyler Duffrin

All Dissertations

Object properties such as length, shape, and heaviness, as well as affordance-based properties such as strike-with-ability and poke-with-ability, can be perceived via dynamic touch as functions of inertia tensor invariants. The primary question addressed here was whether people can perceive these same power and precision properties for purely virtual objects, which lack dynamic physical forces. The Kinematic Specification of Dynamics (KSD) principle asserts that missing dynamics are lawfully specified by kinematic (visual) motion patterns, such that kinematic information alone may support successful interactions with virtual objects. In three experiments, we investigated (1) whether virtual reality (VR) users could calibrate to …

Unlocking The Behavior Code: How Function-Based Behavior Skills Coaching Empowers Teachers And Reduces Tier Iii Referrals In Mtss, Erin C. Smith-Harrah

All Dissertations

The purpose of this study is to examine the effect of behavior skills coaching on the percentage of students receiving Tier 3 intervention at an elementary school in South Carolina using a Multi-Tiered Systems of Support (MTSS) framework. The research site for this study has experienced a significant increase in students referred for and receiving Tier 3 instruction. Whereas Tier 3 instruction typically accounts for 5% of a student population, data indicate that the percentage of students who received Tier 3 instruction at the beginning of the 2025-2026 school year at this campus was 39%, with 14% identified as students …

Increasing General Education Teacher Effectiveness When Working With Students Receiving Special Education Services, Taylor Watson

All Dissertations

Although the number of students identified as having disabilities (SWD) continues to increase, general education teachers continue to demonstrate difficulty adequately supporting these students. At one South Carolina school in particular, SWD demonstrate decreased academic achievement and increased rate of discipline referrals when compared to non-SWD. This study utilized an improvement science approach in order to implement targeted instruction on high-leverage practices (HLPs) and its impact on general education teacher effectiveness.

Preliminary findings of the intervention trended positive. Teacher participants demonstrated increased understanding of HLPs following intervention, although this increased knowledge did not necessarily correlate with increased application. Students whose …

Counting The Days: The Impact Of Career And Advanced Coursework On Academic And Perceptual Outcomes For Eighth Grade Students Who Are At Risk Of Experiencing Adverse Educational Outcomes, Jamie Megna

All Dissertations

This study addressed limited academic achievement and limited access to meaningful learning opportunities among eighth grade students who are at risk of adverse educational outcomes. The purpose of this study was to examine how implementing career-based and advanced coursework opportunities for eighth grade students who are at risk improves student engagement with relevant and meaningful learning while supporting progress in academic achievement. The study achieved this by reducing barriers to career-based and advanced coursework to expand access to these learning environments for students who are at risk.

Using a mixed-methods design, the team collected and analyzed data to monitor the …

Teacher Self-Efficacy And Student Engagement In Rural Science, Technology, Engineering, And Mathematics Magnet Schools: A Correlational Study Within An Improvement Science Context, Deirdre L. Appleby

All Dissertations

Teacher self-efficacy in magnet-themed integration represents a critical, district-influenceable condition shaping instructional experiences in rural Science, Technology, Engineering, and Mathematics (STEM) magnet programs. Persistent under-enrollment of Black, Latinx, and economically disadvantaged students in these settings highlights ongoing inequities in access and participation that may be influenced by upstream instructional conditions. Grounded in Bandura’s Social Cognitive Theory and situated within an improvement science framework, this study examines teacher self-efficacy as a key system-level factor associated with student engagement.

This study employs a correlational research design within an improvement science context to examine the relationship between changes in teacher self-efficacy and changes …

Technology Enhanced Math Instruction And Student Achievement, Barbara Warren

All Dissertations

ABSTRACT

This study examines how one teacher in a large rural high school in South Carolina integrates an AI technological intervention as a supplemental tool, specifically as part of blended learning, to help increase math achievement for students in Geometry with Statistics.  Evidence-based interventions, such as technology enhanced math instruction, encompass a diverse range of tools used by teachers, including an AI-driven high-dose tutorial which is a tool that educators use to diagnose, teach, and assess targeted skills.  The key to the success of the AI tutorial is that it is programmed to use evidence-based practices (Fesler et al., 2026) …

Why Technical Readiness Is Not Enough: Institutional Barriers To Full Harvest Strategy Adoption In The International Pacific Halibut Commission, Evelyn Roozee, Owen Temby, Gordon M. Hickey

School of Earth, Environmental, & Marine Sciences Faculty Publications

Harvest strategies are increasingly promoted as a mechanism to reduce political discretion and align fisheries management with pre-agreed scientific objectives. While substantial progress has been made in tuna regional fisheries management organizations (RFMOs), non-tuna RFMOs have lagged behind. Existing research has focused primarily on technical modeling challenges, with comparatively limited attention to the governance dynamics shaping adoption. Using the International Pacific Halibut Commission (IPHC) as an instrumental case study, we examine the progress and delays in the development of a harvest strategy policy (HSP) through semi-structured interviews and participant observation. We find that the IPHC successfully addressed commonly cited barriers, …

Agent-Based Modeling Of Cellular Dynamics In Adoptive Cell Therapies, Yujia Wang

Dissertations and Theses (Open Access)

Adoptive cell therapies (ACT) have shown promising progress in combating cancer, but clinical responses remain heterogeneous. Key determinants, including the functional states of infused cells, tumor–immune interactions, and dosing strategies, are difficult to resolve experimentally in the dynamic and heterogeneous tumor microenvironment, limiting optimization of ACT products and treatment regimens. To address the gap, we developed ABMACT (Agent-Based Model for Adoptive Cell Therapies), a computational framework that reconstruct key cellular functions, interactions, and molecular signatures to recapitulate cell population dynamics associated with differential treatment responses. ABMACT encodes autonomous “virtual cells” using literature-informed rules calibrated with experimental data, enabling simulation of …

Ai-Driven Segmentation And Volumetric Response Modeling Of Liver Regions To Radiotherapy, Aashish Chandra Gupta

Dissertations and Theses (Open Access)

In liver-directed radiotherapy (RT), liver regions receiving higher doses typically undergo atrophy while contralateral/adjacent lower-dose regions may exhibit compensatory hypertrophy through regeneration of healthy tissue. Optimizing the RT plan to promote regional hypertrophy while minimizing the risk of developing atrophy has the potential to enhance post-RT liver function and long-term survivorship. However, current clinical practice largely relies on global liver dose-volume metrics during RT-planning, which may obscure favorable dose-response correlation and limit actionable guidance for clinicians. Therefore, we hypothesized that post-RT regional liver response is governed by a combination of region-specific dose-volume and patient clinical features, and that these responses …

Oxidative Stress Mediated Glutamate Release And Nmda Receptor-Dependent Synaptic Remodeling In Radiation-Induced Cognitive Dysfunction, Thanh Lam

Dissertations and Theses (Open Access)

In children younger than 14 years old, the brain and other parts of the central nervous system are the most common sites for solid tumors. Radiotherapy is an effective treatment for central nervous system (CNS) tumors. However, it often causes a progressive decline in cognitive functions, which is especially devastating for pediatric patients. Although post-mitotic neurons are generally considered resistant to radiation-induced immediate cell death, ionizing radiation causes complex neurochemical and structural changes that damage synaptic integrity. In this study, we examined the molecular cascades following a 10 Gy radiation dose applied to mouse cortical neurons. We found that radiation-induced …

Mutational Analysis Of Domain Functions In The Yeast Decapping Enzyme Dcp2, Jellisa Ewan, Ambro Van Hoof

Dissertations and Theses (Open Access)

In yeast, the major mRNA decay pathway involves deadenylation of the 3’ poly-A tail, followed by decapping of the 5’ m7Gppp cap and subsequent 5’ to 3’ degradation or 3’ to 5’ degradation. This is carried out by Pan2/Pan3 and Ccr4/Not deadenylases, the decapping enzyme Dcp2, and Xrn1 and  RNA exosome exoribonucleases, respectively. The eukaryotic mRNA decapping enzyme complex, Dcp1/Dcp2, is essential in yeast, and deletion of either gene is lethal. However, the deadenylases that act upstream and the 5’ exoribonuclease that act downstream of the decapping step are not, even though they are all highly conserved with no known …

Endotyping Obstructive Sleep Apnea In Infants With Micrognathia, Alexis Dominic, Zarmina Ehsan, Baha Al-Shawwa Md, Karishma Rao, Blake A. Welker, Meghan Tracy, Andrew Li, Alessandra Manoylova-Vedder, Shiyuan Chen, Shu-Ching Chen, Members Of The Data Science And Analytics Innovation Center (Dsaic), John P. Dahl, Janelle Noel-Macdonnell

Posters

No abstract provided.

On The Operation Of A Proteomics Core Facility: Selected Mass Spectrometric Studies And Methods, Rachel E. Muriph

Graduate Doctoral Dissertations

Mass spectrometry has become an indispensable analytical platform for investigating complex biological systems owing to its sensitivity, selectivity, and molecular specificity. This Dissertation demonstrates the versatility of liquid chromatography-tandem mass spectrometry (LC-MS/MS) through three studies focused on nanoparticle characterization, protein structural analysis, and plasma proteomics. In Chapter 2, LC-MS methods were developed to characterize novel lipidoid incorporated into lipid nanoparticles (LNPs) and to evaluate their in vivo biodistribution following systematic administration. Comparative proteomic analysis of the resulting protein coronas revealed distinct differences between liver and lung targeting LNP formulations, providing insight into the potential role of adsorbed blood proteins in …

Effects Of Peer-Mediated Constant Time Delay Instruction On Science Vocabulary Acquisition For Students With Moderate Intellectual Disabilities, Amy S. Roberts

Electronic Theses and Dissertations

This study examined the effectiveness of combining peer-mediated embedded instruction with constant time-delay (CTD) procedures to improve Agriscience vocabulary learning among secondary students with moderate intellectual disability who were educated in an inclusive Agriscience classroom. A multiple-probe across participants design was conducted with three students with moderate intellectual disability. Trained peer tutors provided embedded vocabulary instruction during naturally occurring classroom activities. Results showed an increase in independent correct responding for all participants following the implementation of the intervention. Procedural fidelity, interobserver agreement, Tau-U effect size, and social validity data further demonstrated that the intervention was implemented consistently and was viewed …

Technique-Level Normalization For Cybersecurity Intelligence: An Empirical Evaluation Of Att&Ck Attribution From Hids Alerts Using Fine-Tuned Transformers And Metadata Re-Ranking, Emad Sherif

International Journal of Cybersecurity Intelligence & Cybercrime

Cybercrime investigations increasingly depend on the ability to interpret large volumes of automated security events. For organizations without dedicated security operations centres, a situation common among small and medium enterprises, the manual translation of raw alerts into structured threat intelligence represents a critical bottleneck that slows investigative triage and limits cross-case comparability. This paper evaluates an automated enrichment pipeline designed to address this bottleneck by mapping security events to standardised adversary behaviour labels drawn from the MITRE ATT&CK framework, supporting both operational response and cybercrime investigation workflows. We compare three pipeline configurations, a general-purpose encoder model, a cybersecurity domain-adapted variant, …

Evaluation Of Dredged Sediments As A Partial Replacement For Fine Aggregate In Mortar And Concrete, Ashish Gautam

Graduate Theses and Dissertations (2019 - present)

The feasibility of using dredged sediment from the Mobile River as a partial replacement for fine aggregate in mortar and concrete was investigated through a series of laboratory characterization and performance evaluation. Three dredged sediment samples (A, B and C) were initially examined, and Sample A was selected for further evaluation due to its closer resemblance to natural fine aggregate. This sample exhibited lower moisture content, higher sand equivalent values, higher specific gravity, and lower absorption. Mortar mixtures with 0, 10, 20, 30, 50, 75 and 100% dredged sediment replacement showed decreasing workability as the replacement level increased. The 20% …