Digital Commons Network^™

Retention Time Of Microplastics In The Purple Sea Urchin (Arbacia Punctulata), Alexandra Shore

Honors Theses and Capstones

Marine ecosystems around the world are facing the problem of plastic pollution. Large pieces of plastic eventually degrade into smaller microplastics that are suspended in the water column and sink to the seabed. Sea urchins are exposed to microplastics as they graze on the sea floor and can accidentally consume these pollutants. Sea urchins are ecologically important animals because they physically alter their ecosystem via grazing and are integral part of marine food webs. To better understand how sea urchins interact with microplastics, purple sea urchins were exposed to microfibers and microspheres in a laboratory setting, and the retention time …

More Than A Meal: What Death Row Last Meals Reveal About Identity, Power, And Humanity, Mackenzie Helbig

Honors Theses - Providence Campus

Last meals on death row may appear to be a small or insignificant part of the execution process, but they can reveal deeper meaning about the individuals who choose them and the system that allows them. Before execution, inmates are often given the opportunity to request a final meal. While this moment is brief, it can carry emotional, cultural, and symbolic meaning. This study explores what last meals reveal about identity, mental state, and personal control in a highly controlled environment.

Using a descriptive qualitative approach, this research analyzes last meal records, academic studies, and inmate reports to identify recurring …

From Sacred Practice To Social Identity: The Historical Evolution Of Vegetarianism Through Religion, Psychology, And Social Norms, Makenna Mae Seymour

Honors Theses – Charlotte Campus

This research paper aims to explore how the vegetarian diet has evolved throughout history through lenses of religion and social psychology. Using primary and secondary academic resources, over thirty resources were evaluated, including books and journal articles,  using key words, such as “vegetarian,” “attitudes,” and “social norms.” The beginnings of vegetarianism were established through religious practices, but social norms from families and friends, as well as personal gain reasons, are the driving factors that have maintained the vegetarian diet over time. Vegetarianism began from Pythagoras and his cult in the 600s BC, but it grew once Hinduism and Jainism adopted …

Memoir: The Brain, Neuroethics, And Bioethics, Leslie C. Griffin

Scholarly Works

This Essay examines how developments in neuroscience (or brain science) affect our views of law, medicine, ethics, and religion. Part I shows how lack of clarity about brain death can lead to premature organ donation. Part II argues that health care too often provides inadequate brain care and incomplete rehabilitation. Part III explains why recovery may be possible for those braininjured patients who are told it is not. Part IV demonstrates how the fear of a brain-injured patient oddly affects my perspective on Tort and Criminal Law, which are being influenced by neuroscientific advances. Part V examines the new developments …

Exploring The Influence Of Quadriceps Peak Torque And Rate Of Torque Development On Running Mechanics After Anterior Cruciate Ligament Reconstruction, Amit M. Gohil, Gregory S. Hawk, Darren L. Johnson, Christopher S. Fry, Brian W. Noehren

Physical Therapy Faculty Publications

Background: After anterior cruciate ligament reconstruction (ACLR), chronic changes in knee joint biomechanics during higher level tasks, such as running, may negatively impact long-term knee joint health. Among the factors that contribute to these chronic changes, the influence of quadriceps strength on knee joint biomechanics during running is not well understood.   Hypothesis: Higher involved limb quadriceps strength (peak torque and rate of torque development [RTD]) and limb symmetry index (LSI) will be positively associated with greater peak knee flexion angle and peak knee extensor moment during running.   Study Design: Cross-sectional study.   Level of Evidence: Level 3.   Methods: Peak knee extensor …

Effect Of Corn Processing Methods On Growth Performance, Carcass Characteristics, And Gastrointestinal Health In Ruminants Fed Finishing Diets, Reanna Rae Byrnes-Schoen

Electronic Theses and Dissertations

The objective of this work was to evaluate different feed processing techniques and their impacts on growth performance, carcass traits, and gastrointestinal health in ruminant animals fed in confinement during the finishing phase. Two studies were conducted. The first study evaluated the effect of kernel processing high moisture ear corn (HMEC) on growth performance and carcass characteristics of finishing beef steers. The second study used feeder lambs to evaluate the effect of steam-flaking corn in a finishing diet on growth performance, carcass characteristics, and gastrointestinal tract (GIT) health. The results from the first study using steers demonstrated that feeding kernel …

Framing Of Obesity In Magazines, Chitrangda Malik

Selected Full-Text Master Theses 2021-

The aim of this study is to determine how the top four magazines in America portray the issue of obesity in terms of responsibility and in relation to mental health. Additionally, it is to determine the kind of framing used to present the issue of obesity. The data of this study is limited to Costco Connection, Better Homes & Gardens, AARP, and People magazine. Data has been divided into two timelines, one from January 2020-January 2026 and the other from January 2022-January 2026. Results indicate that magazine articles primarily attribute the cause of and solution to obesity as behavioral and …

The Influence, Dependency, And Targeting Of Fatty Acid Uptake In Er+ Breast Cancer, Abigail E. Goen

Dartmouth College Ph.D Dissertations

Estrogen Receptor-positive/ Human Epidermal Growth Factor 2-negative, breast cancer (ER+/HER2- BC) is the most prevalent subtype of BC, impacting millions of individuals. Although early screening and treatment with endocrine therapy has greatly enhanced survival, this subtype sustains a steady increase of risk for recurrent disease for decades after diagnosis, indicating the persistence of residual cancer cells that are capable of maintaining dormancy for >20 years prior to metastatic outgrowth. Dormant cells reprogram metabolic pathways which can be profoundly influenced by the tumor microenvironment in promoting quiescence or proliferation. Fatty acid oxidation dependency has been noted as a hallmark of drug …

Utilizing Plethodontid Occupancy To Assess Initial Ecosystem Responses To Invasive Plant Control Treatment In The Central Hardwoods, Maree Guinevere Dieterich

Graduate Theses, Dissertations, and Problem Reports (ETD)

Invasive plants are a growing concern for land managers, impacting ecosystem resilience and outcompeting native vegetation. To combat this, invasive plant control treatments can assist in reducing the impacts and spread of damaging, non-native plant species. However, intensive treatments completed at large scales have the potential to negatively impact ecosystem services as well. To monitor these impacts, I utilized a well-known indicator in the Central Applachian region, Plethodontid salamanders, to assess impacts of invasive plant control treatments in the Central Hardwood forests. I completed 12 visual samples across 60 sites in West Virginia, USA during Spring and Fall of 2025 …

Maesa Ramentacea Leaf Extract Protects Against Gentamicin-Induced Nephrotoxicity In Wistar Rats By Modulating Renal Oxidative Stress, Inflammation And Apoptosis, Fahmida Akter, Md Shafiqul Islam Sovon, Baizid Hossain, Md Ariful Islam, Subrato Das, Anik Biswas, Md Sohorab Uddin, Md Mahmudul Hasan

Faculty Publications

Background: Gentamicin-induced nephrotoxicity continues to be a significant clinical concern, while effective and safe protective options remain limited. The nephroprotective potential of Maesa ramentacea has not yet been explored. To address this gap, the present study investigated the ethanolic leaf extract of M. ramentacea (MR-LEE) for its effects on gentamicin-induced kidney injury in Wistar rats. Methods: GC-MS profiling was employed to identify bioactive metabolites. Rats were categorised into five groups: control, gentamicin (100 mg/kg), gentamicin combined with silymarin (100 mg/kg), gentamicin combined with MR-LEE (200 mg/kg) and gentamicin combined with MR-LEE (400 mg/kg). Renal biomarkers, oxidative stress indicators, inflammatory and …

Building Capacity, Driving Impact: A Landscape Analysis Of Community Engagement And Outreach Cores' Activities, Emily Frankel, Stephanie Broyles, Stephenie Kennedy-Rea, Casey Solsrud, Elizabeth K. Woods, Deborah Goebert, Zsolt Nagykaldi, Holly Huye, Lee M. Pachter

Faculty Publications

Community Engagement and Outreach (CEO) Cores are a key component of the IDeA Clinical and Translational Research (IDeA-CTR) Program, serving to develop and implement capacity-building initiatives that empower communities to engage and collaborate with investigators in community-engaged research. To strengthen collaboration and shared learning across sites, a CEO Special Interest Group was established. In 2022, the group conducted a landscape analysis to systematically characterize and categorize CEO Core activities across the IDeA-CTR network, with a focus on capacity-building efforts related to knowledge transfer, co-learning, and infrastructure development. The analysis revealed several common approaches to community engagement and capacity building across …

Wellness Policies In Action: A Wscc-Based Comparative Analysis Of District-Level Policy And School-Level Practices, Leanne Denise Watson

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Wellness Policies in Action: A WSCC-Based Comparative Analysis of District-Level Policy and School-Level Practices

Leanne D. Watson, M.S.

The United States Department of Agriculture utilized the policy platform to implement and reinforce federal mandates aimed to improve health outcomes for student-aged youth, requiring all schools participating in the National School Lunch and/or Breakfast Program to develop a written wellness policy beginning with the 2016-2017 school year. However, the resulting impacts on school environments are unclear. The Whole School, Whole Community, Whole Child (WSCC) model is a recommended framework to influence wellness policies and school practices and support the holistic …

Adherence And Compliance With Exercise Training In Progressive Multiple Sclerosis: Rates And Correlates From The Cogex Trial, Cogex Research Team, Robert W. Motl, Andrew Argie, Roberto S. Hernandez, Brian M. Sandroff, Maria Pia Amato, Giampaolo Brichetto, Jeremy Chataway, Nancy D. Chiaravalloti, Gary Cutter, Ulrik Dalgas, John Deluca, Rachel Farrell, Peter Feys, Massimo Filippi, Jennifer Freeman, Matilde Inglese, Cecilia Meza, Maria A. Rocca, Amber Salter, Anthony Feinstein

School of Health Professions

Background: There is limited understanding of adherence and compliance rates for exercise training(ET) in people with progressive multiple sclerosis(PMS).Objectives: This secondary, exploratory data analysis examined rates of adherence and compliance for continuous, moderate intensity training and high-intensity intervaltraining(HIIT) and possible correlates among people with PMS from the CogEx trial.Methods: CogEx was a multi-site, multi-arm, randomized, double-blinded, and shamcontrolled trial undertaken by 11 sites in six di8erent countries. Participants(N=311) wererandomized into one of four conditions with di8erent combinations of ET and cognitive rehabilitation, including respective sham conditions, delivered twice weekly over 12 weeks.The analysis focused on adherence and compliance rates and …

Assessing The Ecological Vulnerability Of Natural Flood Defences And Risks To Agricultural Land Following Seawater Flooding, Cally Barratt

School of Biological and Marine Sciences Theses

Anthropogenic climate change is intensifying extreme weather events, affecting the natural environment by altering ecosystems, and leading to habitat loss. Pressingly, the frequency and severity of storm surge flooding in low-lying coastal regions is projected to increase under future climate scenarios. There is a growing need to understand how these events will impact coastal ecosystems, and the measures that can be taken to mitigate against these effects and protect natural resources. Furthermore, with increased pressures placed on agriculture to meet food demand, protecting arable land resources in coastal regions from the rising threat of flooding is imperative. This thesis explores …

Physiological And Morphological Responses To Drought Stress In Different Cultivation Environments In Wild Type And Aba-Deficient Barley, Chloe Betts

School of Biological and Marine Sciences Theses

Global food security is increasingly threatened by the effects of climate change. Of the environmental factors affected by climate change, drought is one of the most critical for plant survival and reproduction, shaping plant morphology and physiology and therefore crop productivity. Although the effects of drought on plants are widely studied, studies are often conducted in controlled greenhouse or laboratory conditions rather than more realistic field-like conditions. This is justified by the lower costs, convenience, and ability to disentangle the effects of different factors in more controlled conditions. This thesis explores the effect of the same watering limitations in different …

Impacts Of Microplastics In A Changing Agri-Environment, Riley Kent

School of Biological and Marine Sciences Theses

Microplastics are increasingly recognized as persistent contaminants in terrestrial ecosystems, yet their impacts on plant performance remain poorly understood under realistic environmental conditions. In natural and agricultural systems, plants rarely encounter contaminants in isolation, instead experiencing multiple interacting stressors. The work presented in this thesis investigated how soil microplastics influence plant growth and physiology both independently and in combination with freshwater flooding, a climate-relevant stressor associated with increased storm activity and shifts in precipitation patterns. Using white clover (Trifolium repens) as a model agronomic legume across multiple cultivars, the study examined how polymer identity, plant genotype, and environmental context interact …

Prevalence And Incidence Of Heart Failure Phenotypes Among Transgender And Gender-Diverse Adults In The United States, Ian K. Everitt, Emily K. Quinn, Meredith S. Duncan, Chris Grasso, Sari L. Reisner, Guneet K. Jasuja, Tonia Poteat, Ayelet Shapira-Daniels, Howard Cabral, Vin Tangpricha, Michael K. Paasche-Orlow, Emelia J. Benjamin, Monica Mukherjee, Carl G. Streed

Biostatistics Faculty Publications

BACKGROUND: Prevalent and incident heart failure (HF) and its comorbidities have not been characterized in transgender and gender-diverse (TGD) populations. This study determines the prevalence and incidence of HF phenotypes by gender identity. METHODS: A retrospective cohort analysis was performed using deidentified administrative claims from the Optum Labs Data Warehouse (2006-2022). TGD adults and a sample of demographically similar cisgender comparators were identified using a validated algorithm, and gender identity was categorized as cisgender man, cisgender woman, transmasculine, transfeminine, or unclassified TGD. Prevalent and incident HF, including systolic, diastolic, and unclassified phenotypes, were assessed using diagnosis codes. Multivariable logistic and …

Integration Of Community-Engaged Research Technology And Methods To Guide Tobacco Regulatory Science In Rural Communities, Melissa H. Abadi, Stephen R. Shamblen, Mary Kay Rayens, Kirsten T. Thompson, Amy Wildman, Kathy Rademacher, William Wieczorek, Raphael Nishimura, Shyanika W. Rose, Mikhail N. Koffarnus, Seth Himelhoch, Ellen J. Hahn

Biostatistics Faculty Publications

Objective – This study aims to build a rural Appalachian cohort to examine how US Food and Drug Administration (FDA) Center for Tobacco Products (CTP) regulatory policies influence tobacco and nicotine product use across levels of rurality. Methods – The AppalTRUST (Appalachian Tobacco Regulatory Science Team) Cohort integrates four inter-connected Community-engaged Research + Technology (CEnRT) elements to support recruitment and retention: (1) building trust and cultural relevance; (2) addressing barriers to participation in research; (3) focusing on ethics and confidentiality; and (4) fostering ongoing and consistent collaboration between the scientific and field teams. The study uses a dual sampling design …

Body Mass Index Has No Impact On Complications And Mortality For Patients With Stage Iv Pancreatic Ductal Adenocarcinoma, Ren Bryant, Hannah Darnell, Megan Hall, Kelsey N. Karnik, Kristen J. Mcquerry, Ruben R. Plentz

Biostatistics Faculty Publications

Background: Pancreatic ductal adenocarcinoma (PDAC) is one of the leading causes of United States (USA) cancer death. Overweight and obesity developing into a growing global medical and socio-economic problem, affecting approximately 42% of adults in the USA population. The aim of our analysis was to evaluate the influence of overweight and obesity on complications and clinical outcome in patients with stage IV PDAC.

Methods: We retrospectively reviewed electronic health records of patients diagnosed with stage IV PDAC (n=162) who followed with the University of Kentucky from January 2017–October 2024. Comparisons were based on the body mass index (BMI): low BMI …

The Multidimensional Impacts Of Poverty On Adolescent Outcomes, Klarence Baker

Graduate Research Papers

Poverty is a pervasive, multidimensional phenomenon that extends beyond financial scarcity to encompass a lack of both tangible and intangible resources necessary for healthy development. This research article synthesizes current literature to explore the profound impacts of poverty on adolescents specifically examining how economic hardship influences long term outcomes in financial attainment, educational success, and physical and mental health. This study investigates how cooccurring risk factors can disrupt neural development and social trajectories. The primary purpose of this study is to assess the duration and severity of poverty exposure and its lasting effects extending into adulthood. This research examines three …

Machine Learning For Early Obesity Risk Prediction, Giuseppe Cutugno

ICT

Obesity is a major global public health concern, with significant implications for individual health, healthcare systems, and wider economic outcomes. Early identification of obesity risk can support preventive strategies and encourage healthier lifestyle choices before health conditions become more severe. This project develops a machine learning framework for estimating obesity levels using data relating to individuals’ physical characteristics, eating habits, lifestyle behaviours, and demographic factors. Following the CRISP-DM framework, the project examines the structure and limitations of the dataset, including its mixture of objective measurements, survey-based variables, and synthetically generated observations. Two modelling approaches are considered, one including BMI as …

Mechanical Fractionation Of Wheat Middlings For Application In Pyrolysis And Animal Feed, Okwudili I. Obiakor

Dissertations, Master's Theses and Master's Reports

Wheat middlings are grain byproducts that are underused for bioenergy production despite having a high lignocellulose content. Its use as a feedstock for catalytic pyrolysis depends on effective and sustainable fractionation to enhance efficiency and product yield. This study tested mechanical pre-fractionation (sieving and air classification) to reduce ash content of certain fractions to < 1% for catalytic pyrolysis and enrich nutrient levels of other fractions for feed applications. Wheat middlings were separated into 11 fractions using screen sizes from 106 µm to 1651 µm, and the composition of each fraction was characterized (ash, protein, structural carbohydrates, lignin, starch, and simple sugars). For cyclone separation, a full factorial design was used to study the effect of air velocity (15,18, 20 m/s) and feed rate (33, 35, 38 kg/h) on the amount of material collected in the underflow and overflow, and the composition of these fractions was characterized. Sieving showed a pronounced segregation of ash content, from 4.5% to 6.5% in wheat middlings fractions, with 5.7% being the lowest for coarse fractions which has higher lignocellulose content, and 4.5% in the fine fraction (150-212 µm). The same defined enrichment was observed in all nutrients except for protein. Starch enrichment zone were defined in the fine fractions (212 µm and below), for structural carbohydrates and lignin in the coarse fractions (600 µm and above), and for ash in coarse fractions (1180-1651 µm). In contrast, protein content was not significantly different between various fractions (p value=0.787). The fiber rich fraction (> 600 µm), suitable for pyrolysis, which have a composite ash value of 6.0% can be sorted and mixed with intermediate fractions to reduce ash to 5.3% and the remaining fractions rich in digestible nutrients used for animal feed formulation. Compared to sieving, cyclone separations did not …

Digital Technology And Women’S Health In Nigeria: A Feminist Sts Walkthrough Analysis Of Mdoc Digital Health, Edith Michael Ogbodo

Dissertations, Master's Theses and Master's Reports

This thesis critically examines how a Nigerian digital health platform, mDoc, represents and constructs women’s health. Drawing on Feminist Science and Technology Studies (STS) and Light et al.’s (2018) walkthrough method, the study interrogates the values, assumptions, and power relations embedded in mDoc’s design, language, and governance structures. The analysis reveals that mDoc, despite positioning itself as an equitable solution to Nigeria’s health crisis, reproduces and depoliticizes the structural inequalities it claims to address. Through its neoliberal emphasis on self-care, the individualization of structurally produced suffering, and the datafication of women’s bodies, the platform encodes gendered, colonial, and class-based assumptions …

Public Perception Of Environmental Contamination And Its Implications For Fish And Community Health In West Bengal, India, Libia Hazra

Dissertations, Master's Theses and Master's Reports

In West Bengal, India, the highest fish-consuming state in the country, fish are woven into everyday life, including ceremonies of birth and marriage, prayers offered during harvesting and the cultural memory of communities whose identities are inseparable from aquatic life. However, the rivers, wetlands, and ponds that sustain these fish-human relationships are increasingly threatened by environmental contamination resulting from industrial discharge, agricultural runoff, and inadequate environmental management. Understanding how communities perceive these environmental changes is essential for developing effective conservation and public health strategies.

In collaboration between the Indian Institute of Technology (ITT) Kharagpur, India, and Michigan Technological University (USA), …

Targeted And Screening Based Approaches To Analyze Drm Transcriptional Repressor Complex Activity In Caenorhabditis Elegans, Emily Washeleski

Dissertations, Master's Theses and Master's Reports

The molecular machinery that control the eukaryotic cell cycle, specifically the processes that mediate the switch between cellular division or quiescence, are essential for cellular and organismal viability. However, how the same machinery integrates with developmental or differentiation programs is less well understood. In Caenorhabditis elegans, the 8-subunit DRM complex (for Dp, Rb and MuvB), whose subunits belong to the Synthetic Mulitivulva (SynMuv) B class genes, is a central regulator of the cell cycle but also prevents inappropriate cell fate specification. The conserved mammalian DREAM complex (for Dp, Rb, E2F, And MuvB) is best known as a transcriptional repressor …

Applied Forest Restoration And Conservation In Michigan: Advancing American Beech Restoration And Documenting A Historical Insect Collection, Thomas E. Panella

Dissertations, Master's Theses and Master's Reports

Forest restoration and conservation require both practical management approaches and the preservation of biological resources that support future research. This dissertation presents applied research conducted in Michigan that advances American beech (Fagus grandifolia) restoration in response to beech bark disease (BBD) while documenting an important historical entomological resource. Chapters 1–3 focus on overcoming practical barriers to American beech restoration. Restoration protocols were developed and refined for identifying BBD-resistant trees, graft propagation, rootstock collection, container production, and the field establishment of grafted BBD-resistant trees. A greenhouse experiment evaluated the influence of growing media and fertilization on container stock quality, …

Exploring The Prevalence Of Eating Disorders, Low Sex Drive, And Exercise Compulsion Among Professional And Non-Professional Elite Male Rugby Union Players, Gary Sweeney, Siobhain Mcardle, Danielle Logue, Nessan Costello, Kieran Collins

Research Outputs: 2025-Present

Rugby union exhibits large variations in the idealised player physical profiles across positions. The pursuit of physique ideals with limited professional support can influence eating disorder symptomology, exercise compulsion, and low sexual drive. The primary aims were to (1) explore the prevalence of elite male rugby union players who are at risk for eating disorders, low sex drive, and exercise compulsion, and (2) explore the relationship between risk and players’ professional status, weight, age, and playing position. A secondary aim was to explore the nutritional service support and dietary monitoring practices experienced by the players. Participants were recruited from four …

Growth And Sustainability Of Ash Tree Replacements In Twin Lakes, Iowa, Emma Larsen

Honors Program Theses

The significant loss of mature ash trees at Twin Lakes Bible Camp (TLBC) has motivated efforts to restore green spaces by planting replacement trees. In summer 2024, 32 trees representing eight unique species were planted, and their overall health and site suitability were evaluated to inform future replanting efforts in summer 2025. The five soil series present at TLBC (Canisteo, Clarion, Webster, Okoboki, and Nicollet) were evaluated by soil chemistry testing through x-ray fluorescence spectrometry. This study presents site-specific data of tree growth measurements, visual health assessments, and soil compatibility analyses to identify practical recommendations for improving restoration success. The …

The Impact Of Defunding The Supplemental Nutrition Assistance Program Education (Snap-Ed) In Louisiana, Virginia Bordelon, Senlin Chen, Yuxin Nie, Denise Holston, Jessice Stroope

Distinguished Undergraduate Researcher Program

The Supplemental Nutrition Assistance Program Education (SNAP-Ed) was a federally funded initiative that aims to improve nutrition knowledge, promote physical activity, and provide education through Policy, System, and Environmental (PSE) strategies. This study examined the relationship between the defunding of SNAP-Ed and how nutrition and physical activity were affected among low-income families. Data for this study originated an interview with a Department of Children and Family Services (DCFS) economist, an interview with SNAP-Ed field agent, and survey responses from 32 adult participants familiar with SNAP. The SNAP recipients use the education program resources to assist in healthy recipes, physical
education …

A Simple Statistical Tool To Correct The Daily Temperature Effect On Dielectric Soil Matric Potential Sensor Readings, Sebastián Bravo Peña, Meindert Commelin, Ole O. Wendroth

Plant and Soil Sciences Faculty Publications

High-resolution time series recorded by soil water dielectric sensors are often affected by other processes. Dielectric soil matric potential sensors, such as the TEROS 21, exhibit temperature sensitivity, resulting in deviations of readings from the true value due to soil temperature fluctuations. However, methods for correcting this effect remain limited. The objective of this study was to create a straightforward, scale-based statistical approach to mitigate the influence of daily temperature oscillations on matric potential dielectric readings. The temperature sensitivity correction function (TSCF) identifies, quantifies, and smooths diurnal fluctuations caused by soil temperature dynamics. We provide a detailed description of the …