Visor-Zt: A Visibility, Simulation, And Operational Resilience Framework For Zero Trust Security In Ros 2, Noah Tinker

All Theses

Robotic systems are becoming more and more prevalent in modern society, with Robot Operating System 2 (ROS 2) being the dominant operating system for these implementations. Its popularity can be attributed to its design, which is purpose-built for distributed systems and asynchronous communications. However, ROS 2 security is static and therefore less capable of responding to contemporary threats and network behavior. This becomes a greater issue when considering its applications in the military and defense sectors, where security is of the highest importance. In recent years, the U.S. Department of Defense (DoD) has implemented zero trust (ZT) security based on …

A Generalizable And Privacy-Preserving Framework For Anomaly Detection In Heterogeneous Iot Environments, Mahshid Rezakhani

All Theses

With the rapid growth of Internet of Things (IoT) devices across various sectors, detecting anomalies in such systems has become increasingly challenging. IoT environments produce diverse and evolving data streams, often lacking labeled examples, which limits the effectiveness of traditional machine learning models. These models typically require frequent retraining and struggle to adapt to new deployment conditions. This thesis proposes a flexible, privacy-aware framework for anomaly detection in multivariate time series data generated by heterogeneous IoT systems. The approach integrates a long short-term memory variational autoencoder (LSTM-VAE) with contrastive learning and adversarial adaptation, enabling the model to generalize across domains, …

Association Between Gene Family Expansion And The Rapid Diversification Of Pleurocarpous Mosses, Meredith A. Cobb

All Theses

Mosses are the second most species-rich group of land plants. They represent a critical group for understanding the evolution and diversity of land plants. Mosses comprise two major groups, acrocarps and pleurocarps. Despite having a more recent evolutionary origin than acrocarps, pleurocarps are exceptionally diverse. The difference in species richness reflects a rapid species diversification, roughly coincident with the origin and diversification of flowering plants. The speciation events giving rise to pleurocarp diversity happened so rapidly, making it historically difficult to produce strongly supported phylogenies with which to test evolutionary hypotheses. One such hypothesis is whether large-scale changes at the …

An Empirical Analysis Of The Pitch Clock On Major League Baseball, David Langton Jr

All Theses

The pitch clock was instituted in baseball to speed up the pace of play and make the game more watchable. While it has achieved this effect, it may have affected other areas of the sport, like the balance between offense and defense and pitching injuries. This analysis explores the results of a difference-in-difference regression comparing MLB and AAA 2015-2024 seasons. Overall, it finds that pitching statistics were not significantly affected, including elbow injuries. This includes games, ERA, and times a batter is hit by a pitch. In fact, the number of home runs and walks both went down significantly by …

Determining The Impact Of Surface Roughness On Disinfection Efficacy Of Commercial Products Against Pseudomonas Aeruginosa And Staphylococcus Aureus Wet Surface Biofilms, Kayley Stallings

All Theses

Biofilms are resistant to many stressors including disinfectant treatments. Disinfection may be further complicated by biofilms formed on damaged surfaces, as the damaged parts provide bacteria a better place to attach and grow. To better understand the risks, a new method to standardize surface scratching, to emulate worn surfaces via surface roughness changes was developed. These surfaces were used to grow biofilms with an adapted standardized EPA method to determine disinfection efficacy differences on scratched and non-scratched high-density polyethylene (HDPE) and stainless steel (SS) coupons treated with commercial disinfectants [hypochlorite (CL)-based, hydrogen peroxide (HP)-based, and quaternary ammonium (QA)-based]. Post-80 grit …

Criminal Behavior Responses To Changing Penalties: Estimating The Impact Of Felony Theft Threshold Changes, Ezra R. Simmons

All Theses

This study estimates how criminal behavior changes in response to shifts in felony theft thresholds, contributing to broader evidence on the deterrent effects of criminal penalties. Using detailed incident-level crime reports, this study applies econometric techniques to evaluate how offenders responded to reduced penalties. Analyzed within is California’s Proposition 47, which raised the felony threshold for theft-related offenses from $450 to $950. The results show a significant increase in low-level shoplifting (approximately 21%) and more substantial rises (approximately 24% to 30%) in crimes within the threshold overlap ($450 to $950). Additionally, the value stolen in crimes below the $450 threshold …

A Study On Student Experience In Graphic Communications 1040/1 Summer Accelerated Course, Wren A. Dudley

All Theses

The Department of Graphic Communications at Clemson University offered a 10-day accelerated summer course for students enrolled in Graphic Communications I. This study involved a small sample size, with only four students enrolled in the course, limiting the distribution of data. To evaluate its effectiveness and help determine whether the course should be offered in the future, the researcher asked students to complete a course experience survey. Based on student feedback and survey results, the researcher concluded that the department should continue offering this course. Students identified the flexible class schedule and small class size as key factors contributing to …

What Drives Burnout? A Cross-Wave Study Of Work Schedule Justice, Work Schedule Characteristics, And Demographic Predictors, Zara Sedghi

All Theses

Burnout is a critical concern in modern workplaces, especially for employees with demanding or irregular schedules. While prior research has shown that non-standard scheduling practices can contribute to emotional exhaustion, less is known about how perceptions of fairness in scheduling influence burnout over time. Drawing on the Job Demands–Resources (JD-R) model, WSC is conceptualized as a job demand, while WSJ is treated as a job resource. This study investigates the effects of structural features of an employee’s work schedule, such as working evening shifts, night shifts, weekends, extended hours, or overtime (referred to here as Work Schedule Characteristics (WSC)) and …

Optimizing Park Locations While Considering Resident Behavior, Lu Liu

All Theses

Urban parks and green-spaces significantly enhance community well-being by improving physical health, mental wellness, and environmental quality. Given these extensive benefits, ensuring fair and widespread access to urban parks represents a critical priority in urban planning. Despite the advantages of parks, optimizing their location poses unique and complex challenges distinct from traditional facility location problems, such as those involving emergency services or schools. The core distinction arises from the decentralized nature of residents’ park selection behaviors. Unlike centralized allocations typically managed by public administrators, park usage decisions are driven by individual preferences and behaviors. This decentralized decision-making introduces two additional …

Integrating Art Therapy And Emerging Technologies For Enhanced Neuroplasticity And Ptsd Intervention, Piper Hutson, James Hutson

Faculty Scholarship

Post-traumatic stress disorder (PTSD) remains resistant to many conventional treatments, underscoring the need for integrative approaches that harness neuroplasticity. Art therapy, with its capacity to facilitate nonverbal trauma processing and multisensory engagement, has shown distinctive advantages over verbal and pharmacological interventions. Recent innovations, including virtual reality (VR), artificial intelligence (AI), and biofeedback have amplified the therapeutic efficacy of art-based interventions by enabling adaptive, real-time modulation of emotional and physiological states. This review synthesizes current research on technologically enhanced art therapy, comparing it to established treatments such as cognitive behavioral therapy (CBT) and eye movement desensitization and reprocessing (EMDR). Findings indicate …

Evaluating The Impact Of Activated Carbon On The Biodegradation Of Btex Compounds, Megan Barkley

All Theses

BTEX compounds—benzene, toluene, ethylbenzene and xylenes—are toxic, volatile, aromatic hydrocarbons. They are primarily found in petroleum products and can easily enter the environment. Typical remediation techniques include sorption to activated carbon, pump and treat, and bioremediation. Research suggests that combining sorption to activated carbon and bioremediation may enhance BTEX removal. This study evaluates the impact of granular activated carbon (GAC) on the biodegradation of ethylbenzene and toluene, using an enrichment culture of aerobic bacteria.

The main objectives of this study are to grow and maintain a culture that degrades BTEX compounds, evaluate the effect of activated carbon on the biodegradation …

Sex Differences In The Risk Of Developing Alzheimer Disease, Cognitive Trajectories, And Relationships Between Cognition And Pathological Burden, Carling G. Robinson

Arts & Sciences Graduate Student Theses and Dissertations

Prior work suggests females may develop Alzheimer disease (AD) dementia at a higher rate than males, and that this effect may interact with apolipoprotein (APOE) ε4 genotype. However, this work has often been limited by imprecise clinical diagnoses and a lack of AD biomarkers. In addition to the frequency of dementia, there are mixed reports on whether sex impacts rates of cognitive decline. Further, females consistently exhibit greater accumulation of AD pathological biomarkers, particularly tau, than males. It has been theorized that females initially demonstrate resilience to AD pathology, maintaining cognitive functioning longer than males, but experiencing a steeper cognitive …

The Future Research Direction Of Cgiar: Lessons Learned From One Cgiar, Katie Loethen

Graduate Theses and Dissertations

Since its founding in 1971, CGIAR (formerly the Consultative Group on International Agricultural Research) has been at the forefront of agricultural innovation, credited with launching the Green Revolution and delivering 1.78 trillion USD in net present value (NPV) benefits globally, particularly in low- and middle-income countries. Despite these accomplishments, CGIAR now faces internal and external pressures that threaten its future impact. The 2019 reorganization into “One CGIAR” aimed to enhance coordination but has been criticized for adding bureaucracy and reducing scientific autonomy. Simultaneously, public funding for agricultural research is shrinking, while private sector investment often overlooks low-margin, high-need areas central …

Pricing The Unknown: An Analysis Of Expected Value Of Young Horses And Price-Determining Factors, Rupasri Sura

Graduate Theses and Dissertations

From a seller’s point of view in a market, it is crucial to plan the pricing strategies based on perceptions of buyer preferences and their willingness to purchase to ensure market success in selling and pricing. Applying this to the equine industry, this paper studies the factors determining the price of young horses (age ≤ 2 years) in digital auction platforms. Using data from Professional Horse Services, LLC (2012–2023), a Heckman’s two-step approach was employed, which involves a probit model as the first step and a hedonic price model as the second, aiming to correct for sample selection bias in …

Factors Influencing Cognitive Load: Exploring Affective Elements, Motivational Constructs, And Regulatory Strategies In Learning, Rebecca B. Brockbank

All Graduate Theses and Dissertations, Fall 2023 to Present

There are three separate research papers within this dissertation, each looking at specific elements of learning. The process of learning is a complex phenomenon that includes not just cognitive aspects, but also emotional and motivational aspects. During learning there is an input of information into our cognitive system (i.e., minds). When too much information is given or the information is not presented effectively, this can overload our cognitive system and negatively impact our learning. Understanding how to learn within the parameters of our cognitive system is important. However, learning is more complex than just the simple input and output of …

An Exploration Of Occupational Stress And Heart Health In Policing, Jenna Hayes

Honors Projects

The stress and heart health of police officers, looking at how stress on the job and heart health are directly related. Police Officers face many challenges on the job and they face high stress environments. Their stress levels rise every time they are working, what does that do for their heart health?

Impacts And Insights: Assessing The Aftermath Of Yellowstone’S 500-Year Flood In Montana, Melissa Weddell, Kara Grau, Patrick Holland-Stergar, Christina S. Barsky, Lauren K. Mckeague

Institute for Tourism and Recreation Research Publications

Tourism is shaped by many elements, including natural disasters and unexpected events, which can profoundly affect visitor patterns and destination choices. While disasters typically reduce tourist numbers, occasionally they can have a positive influence. The purpose of this report is to document the flood event, analyze its impact, recovery process, and the economic losses to the region, particularly in terms of tourism visitation and revenue to the area and its gateway communities. The project was a coordinated effort among researchers from the University of Montana’s Institute for Tourism and Recreation Research (ITRR), the Department of Public Administration and Policy, and …

New Resource: Pharmacology World, Joanne Romano

TMC Library Newsletter (2015-)

Pharmacology World is a comprehensive video series designed to support students and educators in mastering the core principles of pharmacology. Each video offers clear, concise explanations and visual aids.

Access Pharmacology World from the A-Z Databases link.

Hermann Hospital One-Hundred Years, Kelsey Koym

TMC Library Newsletter (2015-)

In 1925, Hermann Hospital opened its doors with a mission to provide quality healthcare to the people of Houston. One hundred years later, its legacy continues to shape the Texas Medical Center and the broader medical community.

Find out more at The McGovern Historical Center blog .

Challenges And Artificial Intelligence Solutions For Clinically Optimal Hepatic Venous Vessel Segmentation, Håvard Bjørke Jenssen, Varatharajan Nainamalai, Egidijus Pelanis, Rahul P. Kumar, Andreas Abildgaard, Finn Kristian Kolrud, Bjørn Edwin, Jingfeng Jiang, Joseph Vettukattil, Ole Jakob Elle, Smund Avdem Fretland

Michigan Tech Publications

Background:: Liver vessel identification is crucial for clinical disease assessment and treatment planning, especially concerning local treatment of liver tumors. As artificial intelligence (AI) develops in radiology, opportunities arise to craft models adept at hepatic venous vessel segmentation, opening possibilities for creating patient-specific models of the liver anatomy quickly, despite the diverse features of CT images encountered in clinical settings. Objective: This research evaluates the performance of AI models combined with various pre-processing filters for liver vessel segmentation, emphasizing clinically relevant results. A novel evaluation method was introduced to offer more anatomically accurate assessments, moving beyond traditional metrics like the …

In Vitro Assessment Of The Antihistomonal Activity Of Methyl Jasmonate And Jasmonic Acid, Mckayla B. Williams

Poultry Science Undergraduate Honors Theses

Histomonas meleagridis is a protozoan parasite and the causative agent of histomonosis in gallinaceous birds. There are currently no approved prevention or treatment options available for histomonosis control in the United States. Mortality in affected turkey flocks can exceed 80% which highlights the urgent need for research investigating novel strategies to mitigate histomonosis in the field. The objective of this study was to evaluate the in vitro antihistomonal and antibacterial effects of of methyl jasmonate (MeJA) and jasmonic acid (JA), two plant-derived compounds, in a xenic culture of H. meleagridis. Assays were conducted using cultured H. meleagridis (PHL strain) treated …

What The ‘One Big Beautiful Bill’ Means For Dentists, John Looby Cpa, Theodore C. Schumann Ii Mba, Msf, Cfp, Aif

The Journal of the Michigan Dental Association

Executive Summary: The One Big Beautiful Bill (OBBB), signed July 4, 2025, significantly impacts dentists by extending and making permanent many 2017 tax policies. Key tax changes include permanent tax rates, an increased state and local income tax (SALT) cap, and new deductions for seniors, qualified tips, overtime wages, charitable donations, and auto loan interest. The qualified business income deduction is now permanent, and first-year bonus depreciation is restored. New "Trump Accounts" are established for children. Crucially, the OBBB introduces $50,000 annual and $200,000 lifetime caps on professional degree student loans, effective July 2026, and establishes the Repayment Assistance Plan …

Dentistry And The Law: Length Of Covenants Not To Compete, Dan Schulte Jd

The Journal of the Michigan Dental Association

This article clarifies the distinct legal standards for covenants not to compete in Michigan, particularly relevant for dentists selling their practice and remaining employed. A covenant in an employment agreement is enforceable if "reasonable," typically limited to two to three years and the employer's patient draw area. In contrast, a covenant within a purchase agreement, considered a commercial contract, is judged under a more lenient "rule of reason" standard. This standard is easier to satisfy, requiring only that the covenant does not adversely impact the relevant market. Consequently, purchasers often use the purchase agreement to impose harsher, longer-term restrictive covenants.

Staff Matters: Adding Background Checks And Drug Testing To The Hiring Process, Jodi Schafer Sphr, Shrm-Scp

The Journal of the Michigan Dental Association

This article advises dental practices on legally and carefully implementing pre-employment background checks and drug testing. It emphasizes ensuring non-discriminatory practices by consistently applying policies and clearly defining screening criteria. Practices must obtain written applicant authorization and provide notification of Fair Credit Reporting Act (FCRA) rights before conducting checks. When evaluating results, relevance to the job and timing of convictions should be considered, avoiding blanket bans. For drug testing, transparency is key. Given Michigan's recreational marijuana legality, a positive THC test does not automatically indicate impairment, requiring practices to define their approach. Using a reputable third-party provider for both screenings …

Mda Insurance: How Offering Great Benefits Makes Your Practice Attractive To Employees, Craig Start Mba

The Journal of the Michigan Dental Association

This article highlights the critical role of employee benefits in attracting and retaining staff in dental practices, particularly given the low unemployment rates for hygienists and assistants. Beyond competitive pay and flexible hours, a robust benefit package, including both employer-paid and voluntary options, is increasingly vital. The MDA Health Plan offers flexible group health insurance options for members. Voluntary benefits such as vision, life, disability, accident, critical illness, and hospital indemnity insurance are attractive, with Section 125 (cafeteria) plans allowing pre-tax premium payments and offering payroll tax reductions for employers. These benefits provide essential financial security and enhance overall compensation.

Water Fluoridation: A Personal Perspective On The Effectiveness Of Community Water Fluoridation, William Chase Dds, Maom

The Journal of the Michigan Dental Association

This article offers Dr. William R. Chase's personal insights into community water fluoridation, emphasizing its effectiveness in preventing dental caries. It traces the discovery of fluoride's benefits back to Frederick McKay's 1901 observations and highlights the pivotal 1945 Grand Rapids Study, which demonstrated significant caries reduction, especially in younger age groups. Despite long-standing support from the American Dental Association, controversies regarding fluoride's safety persist, leading to recent state-level bans. Dr. Chase's experiences in countries without fluoridated water, where he observed severe decay and life-threatening cellulitis, underscore his belief in fluoride as a "miracle supplement" when properly utilized. The Michigan Dental …

Social Sprouts: A Play-Based Packaged Intervention - Improving Peer Interactions In Early Childhood Classrooms With A Novel Group Contingency, Brittany D. Garza

Master's Theses

Teaching prosocial skills such as positive peer interactions in early childhood settings not only promotes behavioral health but reliably predicts future learning outcomes. The literature suggests that decreasing levels of challenging behavior may improve peer interactions, and a feasible class-wide strategy that can address this combination of needs effectively is a group contingency. The current study investigated the effect of a novel group contingency, Social Sprouts, on both positive peer interactions and disruptive behavior. This study utilized a nonconcurrent multiple baseline design in three Head Start classrooms to evaluate the effect of this packaged intervention delivered just before and during …

Forgotten Landscapes: Using Original Land Surveys To Understand The Historic Distribution Of Cane Brakes In Wayne County, Ms, Chad Mackness

Master's Theses

This study investigates the historical presence and ecological significance of Arundinaria gigantea (giant cane) in 1810, Wayne County, Mississippi, using original survey documents. These records provide rare quantitative insights into the distribution of cane brakes, revealing that A. gigantea possibly represented up to 44% of the surveyed landscape, likely second only to Pinus palustris (longleaf pine).

This research involved digitizing historical surveyors' notes, transcribing them into a structured format, and extracting spatial data for GIS analysis. The methodology developed for this research can be used to ensure the preservation and usability of these historical documents for future research. …

Do Finances Determine Our Fate?: Understanding The Relationships Between Socioeconomic Status, Inflammation, And Cancer Recurrence Risk, Faith Wilbourne

Master's Theses

Individuals of a low socioeconomic status (SES) are more likely to experience a cancer recurrence relative to individuals with a higher SES. This may be partially explained by the stressors of living with a low SES. These stressors can increase inflammatory markers known to elevate the risk of cancer development. Health-promoting behaviors such as exercise, adequate sleep, and a healthy diet can reduce systemic inflammation. Health behaviors may therefore moderate any potential relationship between SES and cancer recurrence risk. This study explored associations between SES (income, educational attainment) and inflammatory markers related to cancer recurrence while seeking to determine if …

Female Preference And Prezygotic Isolation In The Fundulus Notatus Species Complex, Emilee K. Holderness

Master's Theses

Understanding how reproductive isolation arises between closely related species is central to evolutionary research. Hybridization is widespread across taxa and shaped by interactions among environmental factors, evolutionary history, genetic compatibility, and behavior. These forces often operate nonlinearly across space and time, yet mate choice is frequently assessed under artificial conditions that may not reflect natural behavior. To address this limitation, female mate preference was investigated within the Fundulus notatus species complex, where F. notatus and F. olivaceus hybridize at varying rates across replicate contact zones. Using a free-choice design, behavioral trials were conducted with individuals from populations characterized by high …