Digital Commons Network^™

A Bad Bet For Adolescents: Psychological Perspectives On Sports Betting & Digital Gambling Technologies, Kaitlyn Helfrich

CMC Senior Theses

Digital sports betting is a rapidly expanding sector of the gambling industry, allowing users to place wagers on the outcomes of sporting events from virtually anywhere. While structurally comparable to traditional gambling systems, sports betting is often perceived as a more socially acceptable and accessible alternative, contributing to its growing appeal and largely positive sentiment among Americans. Yet, in the seven years since sports betting has become legalized, growing numbers of Americans have reported psychological and financial problems stemming from problem gambling. Of particular concern is the increasing percentage of adolescents engaging with these platforms, despite legal restrictions on underage …

Beyond Teaching A Man To Fish: Smallholder Cultivation, Certification, And Cooperation In Southeast Asian Aquaculture, Sasha Shunko

CMC Senior Theses

This thesis explores the barriers and opportunities facing smallholder aquaculture farmers in Southeast Asia, focusing on Thailand. It examines how certification systems, technical assistance, and policy interventions can effectively include smallholders in development and sustainability efforts. Based on field interviews with Thai shrimp farmers, analysis of certification schemes, and review of other agricultural intervention models, the research traces how market access, corporate concentration, and environmental change shape smallholder livelihoods.

The findings show that while certification is promoted as a tool for sustainability and market integration, in practice it often excludes the very farmers it seeks to empower. Redundant standards, limited …

When Consumers See It Coming: How Anticipation Affects The Domestic Cost Of Tariffs, Pierce D. Sanderson

CMC Senior Theses

Tariffs implemented by President Trump in 2018 were unexpected and significant, incurring large costs to U.S. consumers. This study examines the effect of tariff anticipation on price, quantity, and value effect on imports in the United States. Specifically, it focuses on tariffs implemented during Obama’s second term in office from 2012 to 2016 on the automotive, technology, and manufacturing industries. The findings present a significant divergence from the literature on the effects of 2018 tariffs, finding a near full pass-through of tariffs to foreign exporter prices rather than U.S. consumers. Specifically, a one percent increase in tariffs resulted in a …

The Effect Of The Tcja And Cares Act On Charitable Contributions And The Financial Health Of The Nonprofit Sector, Nathanio A. Bright

CMC Senior Theses

This thesis examines the impact of the Tax Cuts and Jobs Act of 2017 and the Coronavirus Aid, Relief, and Economic Security Act of 2020 on charitable contributions and nonprofit financial health. The standard deduction increase introduced by the TCJA disincentivized middle to low-income earners from making contributions. In March 2020, Congress temporarily increased the AGI limit on charitable deductions while simultaneously offering an above-the-line deduction for all U.S. taxpayers. While earlier studies have analyzed the effect of the TCJA in disincentivizing charitable contributions, no study has examined the moderating effect of the TCJA and CARES Act in affecting contributions …

Hooked By Design: How Social Media Makes And Breaks Us, Anya Raghuvanshi

CMC Senior Theses

This thesis examines the evolving influence of social media platforms on user behavior, corporate engagement, and digital communication norms. Tracing the historical emergence of major platforms, it analyzes how psychological principles underlying attraction, engagement, and retention have been embedded within digital environments to shape user experiences. Drawing on case studies and international examples, the research highlights how cultural and economic factors — particularly in the United States — have influenced the adoption and monetization of social media. The study also explores broader shifts, including the rising commercialization of digital spaces and the evolving role of social media as both an …

Faltered States: The Rise, Fall, And Containment Of Psychedelic Science In The United States, Baxter Brew

CMC Senior Theses

This thesis traces the history of psychedelic science in the United States and its implications for policymaking. In the postwar period, psychedelic researchers were enabled by a unique convergence of optimism in medical science and structural flexibility. But their hope blinded them to the deeper tensions of their field. As institutions grew increasingly rigid and risk-averse, the space for psychedelics began to close. Some scientists responded by fortifying the walls around them, developing socially and professionally acceptable research methods. Others tried to escape these walls entirely. But neither approach could prevent psychedelics from being squeezed out of formal inquiry. Yet …

The Coral Porites Lutea As A Regional And Local Proxy For Sea Surface Temperature In Hong Kong, And The Effects Of Typhoons On Proxy Accuracy, Brenna E. Bell

CMC Senior Theses

Proxies related to the climate have been used as a method to observe long-term changes occurring underwater that span long before we had the capability to measure environmental characteristics. Porites corals have been used as sea surface temperature (SST) proxies due to annual cyclicity in their growth process and mineral composition. As the climate differs globally, it is important to ensure that proxies are accurate regardless of location to measure changes in climate. This study examines Porites lutea corals as an SST proxy in the region of Hong Kong. Potential local differences in SST proxy calibrations within the surrounding waters …

Robert Frost And The Myth Of Adam And Eve, Theo Johnson

CMC Senior Theses

What exactly it is about the story of Adam and Eve that fascinated Robert Frost is hard to say. Of course, he is not the first to engage with it in writing – for much of recorded human history, the Genesis account of man’s creation has held a place of unparalleled importance in our understanding of what it is to be human, provoking innumerable exegetic responses. In popular literature, too, it has served as inspiration for some of the most celebrated English and American poems. From the “bloodless myth” of Geoffrey Hill’s “Genesis” to the great theodicy of John Milton’s …

Money Matters: Investigating The Emotional, Cognitive, And Biological Pathways Connecting Maternal Early Life Financial Insecurity And Parenting Quality, Elise Power, Stacey N. Doan

CMC Senior Theses

Early life adversity has been shown to have a variety of negative effects on adult functioning, including parenting quality, with implications for child wellbeing. Adverse early life experiences including poverty have been linked to long-term disruptions in emotional, cognitive, and physiological functioning that compromise the ability to provide sensitive, nurturing care. The present study investigated whether emotional regulation difficulties, physiological regulation, and cognitive function mediate the relationship between early life financial insecurity and parenting quality. A sample of 132 mother-child dyads completed self-report measures, biological samples, and cognitive assessments. A multiple mediation model ran in SPSS, revealed a significant indirect …

Exporting Culture, Building A Nation: South Korea’S Use Of Pop Culture As A Soft Power Tool, Nathaniel J. Kim

CMC Senior Theses

This thesis examines the multiple governmental plans, policies, and actions by the South Korean government to support and globalize their pop culture products. After the crumbling of its economy and global image due to many external factors in the 1900s, South Korea found itself in poverty with very little global influence. To rebuild their nation, the government implemented many actions to help grow and strengthen their pop culture products to make them more desirable, domestically and internationally. This thesis analyzes three of the major pop culture exports for South Korea, television, movies, and music, and demonstrates how the government has …

Interventions For Promoting Physical Activity In People With Newly Diagnosed Parkinson’S Disease: Scoping Review, Jonathan Gilby, Bridie Kent, Rachel Knight Lozano, Jonathan Marsden

School of Health Professions

Background: There is increasing evidence to suggest that physical activity can slow Parkinson’s progression. There is also increasing interest in non-pharmacological interventions to alleviate Parkinson’s symptoms. This scoping review aimed to map and describe the evidence for interventions that promote physical activity in people with newly diagnosed Parkinson’s. Methods: Studies conducted since 2011, on adults with Parkinson’s (≥ 18 years), investigating the effects of non-pharmacological interventions to promote physical activity and/or exercise were considered. Interventions needed to be conducted in healthcare or healthcare-related settings for people within 5 years of Parkinson’s diagnosis. Published or unpublished full-text articles since 2011 were …

The Ecoformative And Transformative Issues Of Nature In The Schoolyard: An Exploration Of The Relationship Between Everyday Experiences Of Nature And Well-Being At School, Alix Cosquer, Olivier Gimenez, Arnaud Gregoire, Vincent Girard, Thierry Noell, Tatiana Wasella

Cities and the Environment (CATE)

In urban areas, the implementation of schoolyard facilities (especially through the greening of these spaces) aims to promote children's contact with nature to improve well-being and increase their awareness of environmental preservation. In this study, we use the prospect of schoolyard landscaping in two French schools to conduct research on pupils’ relationship with nature and well-being at school. We explore cognitive and social mechanisms that affect children's perceptions and behaviour in their relationships with nature on a daily basis and in the school context, with a view toward implementing schoolyard designs.

The research aims are (i) to gain a better …

Is There A Future For The Missiological Study Of Worldview?, Paulo Oliveira

Faculty Publications

No abstract provided.

Elephant Megacarcasses Increase Local Nutrient Pools In African Savanna Soils And Plants, Courtney G. Reed, Michelle L. Budny, Johan T. Du Toit, Ryan Helcoski, Joshua P. Schimel, Izak P.J. Smit, Tercia Strydom, Aimee Tallian, Dave I. Thompson, Helga Van Coller, Nathan P. Lemoine, Deron E. Burkepile

Biological Sciences Faculty Research and Publications

African elephants (Loxodonta africana) are the largest extant terrestrial mammals, with bodies containing enormous quantities of nutrients. Yet, we know little about how these nutrients move through the ecosystem after an elephant dies. Here, we investigated the initial effects (1–26 months postmortem) of elephant megacarcasses on savanna soil and plant nutrient pools in the Kruger National Park, South Africa. We hypothesized that (H1) elephant megacarcass decomposition would release nutrients into soil, resulting in higher concentrations of soil nitrogen (N), phosphorus (P), and micronutrients near the center of carcass sites; (H2) carbon (C) inputs into the soil would stimulate …

Digital Health Literacy On Diabetes Knowledge Among Older Adults In The United States, Jung Eun Kim, Susana J. Calderon, Myoungjin Kim

Faculty Publications - Mennonite College of Nursing

Purpose

This study examines the relationship between selected socio-demographics and digital health literacy on diabetes knowledge among older adults in the United States.

Design

Cross-sectional study

Methods

The eHealth Literacy Scale and the Short Diabetes Knowledge Instrument were used. Descriptive statistics, Pearson’s r, point-biserial correlation coefficient, Kendall’s tau, ANOVA, and Poisson regression were used for data analysis.

Findings

The mean age was 71. The mean sum score for digital health literacy was 28.32 (SD = 7.95; range, 8–40), and the mean score for diabetes knowledge was 8.8 (SD = 2.3; range, 2–13). The education level, annual income, number of digital …

Phytochemical Analysis, Antioxidant, And Antibacterial Properties Of Partition Fractions Of Adansonia Digitata And Annona Muricata Extracts Using Chloroform, Ethyl Acetate, Ethanol, And Aqueous Solvent Systems, Fagbohun Oyenike Bushirat, Hassan Abdusalam Adewuyi, Sakariyau Adio Waheed, Maryam Nana Musa, Timothy God-Giveth Olusegun, Ayomide Babatunde Ishola, Agumage Idoko, Adeola Victor Kolawole, Adesanmi Adefunmilayo Oluwatuyi, Sarah Ngozi Agwasim

Chemistry & Biochemistry Faculty Publications

Adansonia digitata and Annona muricata are traditionally used medicinal plants with reported pharmacological properties. In this study, we aimed to elucidate the phytochemical composition, antioxidant activity, and antibacterial properties of partition fractions of Adansonia digitata and Annona muricata extracts obtained using chloroform, ethyl acetate, ethanol, and aqueous solvent systems. The plant extracts were successively partitioned using chloroform, ethyl acetate, ethanol, and aqueous solvent systems. Phytochemical analysis was performed using standard methods. Antioxidant activity was evaluated using FRAP and DPPH assays. Antibacterial activity was assessed using agar well diffusion and MIC determination. Phytochemical analysis revealed the presence of alkaloids (10.2-15.6%), flavonoids …

Lung Uptake Of Two Spect Markers Identifies Sensitivity To Hyperoxia-Induced Acute Respiratory Distress Syndrome In Rats, Anne V. Clough, Taheri Pardis, Guru P. Sharma, Ming Zhao, Elizabeth R. Jacobs, Said H. Audi

Biomedical Engineering Faculty Research and Publications

Introduction: Exposure of adult rats to hyperoxia is a well-established model of human Acute Respiratory Distress Syndrome (ARDS). Although rats exposed to 100% O₂ display clinical evidence of lung injury after ∼40 h and death by 72 h, rats exposed to 60% O₂ for up to 7 days show little sign of injury. However, when subsequently exposed to hyperoxia, these pre-exposed rats become more susceptible to ARDS. The objective of this study is to evaluate the ability of imaging biomarkers to track this hyperoxia susceptibility and to elucidate underlying mechanisms.

Methods: Sprague-Dawley rats were exposed to either room …

Antifibrotic Effects Of Fucoidan Compound On Experimental Hepatic Schistosomiasis, Eman Alaa Eldin Nazir Mohamed, Nairmen Nabih Ahmed, Suzan Hassan Elgendy, Zeinab Mohamed Ahmed Gawesh, Soha Ibrahim Awad

Mansoura Medical Journal

Background Schistosomiasis is a prevalent fibrotic disease characterized by inflammation and fibrous tissue deposition around Schistosoma eggs trapped in the hepatic tissue. This work aimed to evaluate the anti-fibrotic and anti-parasitic effects of fucoidan during the chronic phase of experimental schistosomiasis-mansoni in mice. Methods Sixty female Swiss albino mice were allocated into six groups; non-infected unmanaged mice group, infected unmanaged mice group, non-infected fucoidanmanaged mice group, infected fucoidan-managed mice group, infected PZQ-managed mice group, and infected combined fucoidan and PZQ managed mice. Every liver tissue was examined parasitologically, histopathologically, and by anti-transforming growth factor-beta (TGF-β) immunohistochemically. Serum was used to …

Aprepitant Ameliorates Cyclophosphamide-Induced Testicular Toxicity In Mice Via Suppression Of P38 Mitogen-Activated Protein Kinase, Suzan Awad Abdelghany Morsy, Amira H. Eltrawy, Nehal Adel Khalil, Abd Elaziz Mm, Nourhan Mohamed Mohamed Saeed, Gehad M. Khamis

Mansoura Medical Journal

Background: While cyclophosphamide (CP) is a commonly used immunosuppressant and anticancer drug, it has a high risk of testicular toxicity. The current study evaluated the protective and therapeutic actions of aprepitant (APR), a neurokinin-1 receptor blocker, against CP-induced testicular toxicity in mice and the role of oxidative stress and phosphorylated P38 mitogen-activated protein kinase (p-P38 MAPK) in this action.Methods: Forty male mice were assigned to four groups: control (vehicle only), CP-induced testicular toxicity (single 200 mg/kg intraperitoneal CP dose), APRprotected (20 mg/kg/day APR starting one day before CP, continued for 30 days), and APR-treated (same APR dose starting one hour …

Interplay Between Amiodarone And Statins: Experimental Evidence Of Synergistic Hepatotoxicity, Hager Zaki Elghareb, Abdel-Motaal M. Fouda, Mohamed Mahmoud Elhadidi, Ahmed Abdel-Monem Elmetwally

Mansoura Medical Journal

Background: Drug-induced liver injury (DILI) continues to be a main contributor to acute liver failure. So, this study aimed to investigate interactions between amiodarone and atorvastatin concerning hepatic safety, due to increasing clinical practice of their combination for optimal arrhythmia control. Methods: Forty male Sprague Dawley rats were randomly divided into four groups (10 in each group). Group 1 was control group receiving normal saline. Group 2 received Amiodarone-only \ (administered 30 mg/kg/day orally). Group 3 received Atorvastatin only (administered 10 mg/kg/day orally). Group 4 received combination of both amiodarone and atorvastatin in same previous doses. All drugs were dissolved …

Relationship Between Down Syndrome And Attention Deficit Hyperactivity Disorder And The Role Of Fkbp5 Gene: A Review Of Current Evidence, Israa A. Elsawi, Dina Salama Abd-Elmagid, Doaa Shahin, Mohamed Rizk Khodair, Sohier Yahia

Mansoura Medical Journal

The most prevalent chromosomal disorder is Down syndrome (DS). Neurodevelopmental disorders are highly associated with Down syndrome, such as attention deficit hyperactivity disorder (ADHD). Down syndrome is also distinguished by intellectual disability and developmental delays, with many affected individuals presenting manifestations of ADHD like inattention or hyperactivity. Differentiating ADHD from overlapping DS-related cognitive deficits remains a diagnostic dilemma. The FKBP5 gene, particularly the rs7748266 polymorphism, has been implicated in modulating stress response pathways linked to ADHD susceptibility. This review summarizes the relationship between DS and ADHD and explores the emerging role of FKBP5 rs7748266 in this context. This may later …

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

Electronic Theses and Dissertations 2020 - Present

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

Mapless Autonomous Navigation Using Monocular Vision, Sai Digvijay Neelam

Electronic Theses and Dissertations 2020 - Present

This thesis investigates monocular vision-based navigation for autonomous ground robots in indoor environments. It explores the effectiveness of mapless navigation strategies using image inputs and evaluates both modular and end-to-end deep learning techniques. A comprehensive implementation pipeline was developed on a Clearpath Dingo robot, comparing the approaches: classical optical flow (Farneback), modular deep learning with motion planning, and an end-to-end model.

The modular methods involve predicting region-wise obstacle depths using a ResNet 18 based model trained on a custom indoor dataset, followed by a motion planner. The end-to-end approach leverages a ResNet-18 architecture to jointly predict steering angles and collision …

Exploiting Undulating Fin Kinematics For Multi-Directional Swimming Control, Omar S. Odeh

Electronic Theses and Dissertations 2020 - Present

The Black Ghost Knifefish achieves remarkable swimming gait transition by leveraging the distinctive morphology and kinematics of a single, elongated undular fin. Alongside bi-directional swimming, complex maneuvers incorporating vertical movement and pitch control can also be attained. Inspired by the Knifefish, we explore a novel propulsive and directional control method for an undulating membrane affixed to a robotic vessel utilizing counter-propagating waveforms in tandem with a sigmoidal spatiotemporal pattern to control forward, backward, and turning of the vessel. The proposed actuation supplied the propulsion necessary for the robotic vessel to swim bi-directionally with heading control under varying flow speed conditions. …

Sleep Quality, Volumetric Brain Biomarkers For Ad, Executive Function, & Cognitive Decline In Older Adults, Layaly Shihadeh

Electronic Theses and Dissertations 2020 - Present

Objective: Our aims were to examine differences in sleep quality sub scores and total scores across diagnostic groups cross-sectionally and longitudinally, correlate executive function scores and volumetric biomarkers of AD (prefrontal cortical and hippocampal volumes) with sleep quality scores, and explore how demographic variables may serve to moderate how sleep quality effects diagnosis. Method: 381 participants were classified into 3 diagnostic groups (Cognitively normal (CN), mild cognitive impairment (MCI), and dementia) based on the CDR global score. Prefrontal cortical volume, hippocampal volume, and PSQI total and sub scores were used as predictors of progression status. Daytime dysfunction, sleep duration, and …

Materia Non Medica: Reading Disability And Medical Narratives In The Daughter Of Doctor Moreau, Jessica Elizabeth Young

Electronic Theses and Dissertations 2020 - Present

This thesis presents a close reading of The Daughter of Doctor Moreau by Silvia Moreno-Garcia, engaging Indigenous studies and disability studies to illuminate how the novel interrogates embodiment, medical authority, and human difference. By situating the text within historical frameworks of medicine and corporeality in Mexico, and alongside speculative modes that seek to recuperate non-Western epistemologies, the analysis reveals how Moreno-Garcia reimagines the body as mutable, relational, and politically charged. The narrative’s hybrid characters and transgressive identities offer a generative lens through which to explore bodily variance, not as deviation, but as a site of possibility. Ultimately, this thesis argues …

The Work And Lives Of Agricultural Workers, Cynthia Caron

Sustainability and Social Justice

In 2022, the World Bank estimated that roughly 27% of Sri Lankans worked in the agriculture sector. This chapter focuses on the lives of agricultural workers who cultivate their own farms or work as temporary labourers. It provides an overview of the factors that influence their agricultural livelihoods including but not limited to the structure of the country's agricultural economy and wages. The chapter discusses the risks and uncertainties that climate change, government policies, and agrochemical use present to workers and how they adapt. The chapter's final focus is the incorporation of workers including women into commercial agriculture and export-oriented …

Dictyostelids: The Second Major Group Of Slime Molds, P. Liu, Z.J. Zhang, J.H. Ge, Y. Zou, Z. Li, S. Li, Y. Li, S.L. Stephenson

Biological Sciences Faculty Publications and Presentations

The dictyostelids (also called cellular slime molds or social amoebae) are among the more abundant and widespread groups of microorganisms in terrestrial ecosystems. Despite this fact, they are totally unknown to most people, who sometimes confuse the dictyostelids with myxomycetes (or plasmodial slime molds). The first dictyostelid (Dictyostelium mucoroides) was described by the German Oskar Brefeld in 1869. More than 180 species are now known, and these organisms have been recorded from the high arctic to the subantarctic. The primary microhabitat for dictyostelids is the soil/humus layer on a forest floor, but they also occur in a number of other …

Minor V. Happersett And The Repudiation Of Universal Suffrage, Ellen D. Katz

Articles

Nearly 150 years ago, Minor v. Happersett rejected a constitutional challenge to a Missouri law that excluded women from the electorate. Ratification of the Nineteenth Amendment forty-five years later is often said to have “overturned” Minor. In fact, the Amendment did no such thing. Minor held that voting is not among the privileges of citizenship protected by the Fourteenth Amendment. The Nineteenth Amendment says nothing to the contrary, and instead bars laws and practices that deny or abridge the right to vote “on account of sex.” Minor remains good law today.

It was not happenstance that the Nineteenth Amendment …

High Tech Touts, Sherman J. Clark

Articles

This essay has three interrelated aims. First, it articulates a set of capacities I call virtues of attention—capacities for intuitive discernment, good judgment about what is worth sustained focus, and the ability to engage deeply with worthwhile things. These are eudaimonist virtues in that they help us live well, not merely act rightly. Second, the essay explores what I call poisonous persuasion: the idea that rhetorical appeals, especially those used in marketing, may not only succeed by appealing to certain desires or habits of mind but may also deepen and entrench them. Third, I bring these insights together to examine …