Digital Commons Network^™

Testing The Life-History Dependence Of Dietary Restriction Effects On Oxidative Molecular Damage In Hornworms, Fahime Taheri

Masters Theses

DR and ambient temperature are two environmental factors widely implicated in shaping organismal maintenance and longevity through effects on metabolic rate and oxidative damage. This study tests whether DR and reduced body temperature independently or interactively reduce oxidative protein damage in the gut of tobacco hornworm larvae, a short-lived ectotherm whose life history may constrain typical DR responses. Larvae hatched from eggs were allocated to two feeding regimes (AL and DR) and to 20 °C and 30 °C. At a defined endpoint, guts dissected and homogenized, and analyzed for protein carbonyl content and total protein. Protein damage was expressed as …

Optimization Of Transformation And Regeneration In The Sunflower (Helianthus Annuus), Sara M. Kilar

Masters Theses

In addition to their value as prized ornamentals, sunflowers are important crop species due to the nutritional value and high oil content of the seeds. Sunflower oil is a significant contributor to global seed oil production, which can be used as a food additive and cooking agent as well as a raw material for biodiesel production. While traditional breeding efforts have led to the development of many unique cultivars, genetically modified variations have proven more difficult due to the recalcitrance of sunflower plants to genetic transformation. As a result, facile and efficient transformation methods for sunflowers have the potential to …

Influence Of Thermophilic Biofilms On Proliferation Of Opportunistic Pathogens In Domestic Water Systems, Olajumoke Akinbami

Masters Theses

Domestic hot-water systems quietly grow biofilms under elevated temperatures that can serve as shelter to Opportunistic Premise Plumbing Pathogens. Although focus has been placed on microbes in domestic systems, there has been no clear conclusion on the mechanism of survival and persistence of opportunistic pathogens despite various disinfection strategies. In this study, we determined the distinction between showerhead and drip-flow biofilms at the whole-community level and analyzed the coexistence of thermotolerant organisms with opportunistic genera, such as Legionella. We sampled eight showerheads and simulated four biofilm samples in the laboratory using the drip-flow biofilm reactor.

We observed a strong …

Variation In Maternal Alkaloid Provisioning And Its Effects On Antimicrobial Defense In Tadpoles Of The Poison Frog Oophaga Pumilio, Erica Berent

Masters Theses

No abstract provided.

Biological Computing From Microscopic To Macroscopic Evolution, Xiaofeng Ding

Masters Theses

A unified theory from microscopic to macroscopic DNA-based biological systems is explained in terms of the rule components used when the system size is increased. Even though the eight female rules in each ruleset are provided with an equal probability of the computation-state outcomes, the initial ensemble of the computation states will exponentially settle into one dominant rule that supports the nutrition needed for growth. The remaining seven rules form into two minority groups to provide the biological characteristics of the system's growth from a micro to macroscopic evolution. The object of this study is to prove that such a …

Machine Learning And Evaluation Of Diabetes Risk Using 2022 Brfss Data, Addie Weaver

Masters Theses

This research analyzes Behavioral Risk Factor Surveillance System data from 2022 with three machine learning models, Neural Network, Random Forest, and Support Vector Machine, to determine and compare the models’ accuracy rate of diabetes prediction. Principal Component Analysis was employed to determine principal factors of diabetes risk. Results show that the Neural Network is most accurate at 90.09 percent at predicting diabetes. Factors increasing diabetes risk include alcohol consumption, smoking, and self-perceived mental and physical health.

Wellness Awakening: Gen Z As The Catalyst For A Well-Being Revolution, Juliet Milillo

Masters Theses

This research project delves into the realm of holistic wellness management with a specific focus on engaging Generation Z (Gen Z). Holistic wellness encompasses a comprehensive approach to health and well-being considering physical, emotional, spiritual, social, occupational, and intellectual aspects. Members of Gen Z who are currently in college or recently graduated are the ideal candidates for holistic wellness management education as they are at the prime age to begin establishing long-term habits and lifestyles. Individuals in this age group are settling into their occupations, housing conditions, relationships, exercise patterns, nutritional habits, etc. The study employed a mixed-methods approach. It …

Garment Making As A Practice Of Freedom, Emily Bennison

Masters Theses

This Thesis investigates sewing education in schools as a transformative experience for teenagers. Through teacher-based research methodology, this study delves into the implementation of fashion design classes aimed to foster creative expression. Critical thinking, and social engagement among teens. The research draws upon scholarly work that engaged with home economics, community sewing classes, and trauma informed pedagogical approaches. The qualitative data gathered from classroom observations and the teacher reflections have informed a socially engaged sewing zine that comprises lesson plans. The findings shed light on the potential of fashion design education to empower students, cultivate their artistic skill, and encouragement …

Threading With Hair // Intertwined Stories, Cloris Ding

Masters Theses

“Threading with Hair // Intertwined Stories” is a poignant exploration that navigates the nuanced landscape of women's growth and identity recognition amidst biased societal influences, tracing the trajectory from the artist’s mother's generation to her own. Through a deeply personal lens, the thesis transcends individual narratives to articulate some shared female experiences. Employing reflective works in the form of jewelry, objects and writings, the study delves into female-centric topics, including the fluidity of identity, the transformative journey through various life stages, and the profound impact of societal expectations and family heritage. At the heart of this exploration is the metaphorical …

Architecture As A Carbon-Based Practice, Qixin Yu

Masters Theses

Carbon serves as both a silent protagonist and a looming antagonist in the narrative of architecture, shaping not only the physical structures we inhabit but also the ecological legacy we leave behind.

Centuries of human exploitation of the environment have led to climate and material crises. Shifting this dynamic requires action at micro (matter), meso (material), and macro (materiality) levels. Biogenic materials offer significant potential for carbon sequestration and present opportunities for the building industry to collaborate with nature rather than merely extract from it.

This thesis establishes a research and manufacturing practice that prioritizes material innovation, carbon sequestration, environmental …

Empathetic Reverberations, Tianyue Wang

Masters Theses

Plants play a crucial role in sustaining life on Earth and remediating pollution, making them indispensable components of ecosystems. However, their efforts in combating pollution are often overlooked and underappreciated by humans. This oversight can lead to a failure to recognize the severity of pollution and raises ethical concerns about using plants merely as tools for pollution control. This thesis advocates for acknowledging the essential role of plants in mitigating pollution caused by human activities and emphasizes the need to respect and protect their intrinsic value. The methodology of this research involves developing landscapes that honor and recognize the vital …

Tethered By Nourishment - Exploring Sovereignty Within An Urban Food Apartheid, Benjamin Bailey

Masters Theses

“Tethered by Nourishment” explores how the principles of food sovereignty could be spatially cultivated within an urban environment afflicted by a food apartheid. The urban environment I explore is the Elysian Fields Ave. neutral grounds (colloquial term for road medians) in New Orleans. Working with a series of food-generating landscapes, the proposal imagines multiple cultivation sites to support neighborhoods and communities struggling with fresh food access. These sites allow for varying levels of engagement from start-up farming plots for urban agriculturalists to food forests for more passive food collection. Approaching a multifaceted problem like equitable urban food access requires a …

Better Together, Jack Dumala

Masters Theses

“Better Together” comprehensively explores the spectrum of play from early childhood to adulthood, presenting how play has always been a means of connection and communication. Although the research encompasses all age groups, particular attention is given to teenagers, a community often overlooked. The artifacts and investigations portray how a combination of purposefully designed household objects and readily available items within the home environment can be leveraged to facilitate connection through gaming and various activities. The overarching goal is to offer practical tools and insights to enhance togetherness within families with teenagers.

While We Were At Dinner, Anna Glass

Masters Theses

Mealtime is globally recognized as a time to gather, as food catalyzes connection. This project delves into this human practice of commensality and both explores and emphasizes the significance of communal eating and its benefits through designed objects. Through a collection of six designed dining experiments, this study examines the role of novel tabletop objects and unusually curated meal environments. The way these experiments are designed highlights how communal mealtime experiences can be used as tools for social engagement and disruptors of cultural norms.

Furniture and tableware designs have the power to challenge the assumed arrangement of traditional mealtime rituals, …

Narrative Activism: Strategic Storytelling For Women’S Advocacy, Lili G. Morgan

Masters Theses

The COVID-19 pandemic has drastically widened existing spheres of gender inequality, increasing disparities related to poverty, forced marriage, maternal mortality, gender-based violence, economic vulnerability, and illiteracy. For organizations aiming to rectify these areas of inequality, storytelling is a powerful tool for advocacy. This thesis investigates the intersection of storytelling and advocacy, focusing on the writing strategies utilized by leading gender-equality-oriented organizations. Utilizing Grounded Theory (GT) methodology, this thesis explores the emerging patterns and themes that arise in organizational storytelling strategies across differing contexts. An introduction chapter provides insights into the subject matter, highlighting existing knowledge gaps and rationalizing this study’s …

The Communal Table: A Wholistic Perspective On Food And Social Development, Sarah Cook

Masters Theses

In order to address issues of isolation in the wake of a global pandemic, this thesis examines the nature of the connection between food and community through commensality. “Commensality” is defined as the practice of eating together, which has demonstrable health benefits on personal, interpersonal, and psychological levels. Research reveals that, while commensality has been a foundational tenet of society since civilization’s beginnings, instances of commensality appear to be at an all time low for modern Americans. The results are diminished mental health, undeveloped support networks, and missed opportunities for emotional connection. All of these may be thought of as …

Evaluation Of Dietary Probiotic Supplements On Methamphetamine-Induced Impulsive Action In Rats Maintained On A Differential Reinforcement Of Low Rate Schedule, Kaitlyn Steck

Masters Theses

Substance Use Disorder (SUD) is a chronic, debilitating condition often comorbid with anxiety and depression. Both SUD and affective disorders are characterized by cognitive dysfunction, including impaired decision-making and impulsivity. A mounting body of research implicates gut microbiome alterations as a contributing factor to the pathophysiology of affective disorders. No published studies have assessed behavioral effects of dietary interventions targeting psychostimulant-induced gut microbiome changes. The present study utilized a differential reinforcement of low rate responding schedule (DRL 18 s) as a behavioral index of drug-induced impulsive action to determine if a dietary probiotic supplement alters the behavioral effects of (+)-methamphetamine …

Pretty Girls Don't Eat Pizza: How An Eating Disorder Taught Me I Am Enough, Hannah Kuhn

Masters Theses

Eating disorders have become one of the most fatal mental disorders, and yet many people still don’t know anything about them. This allows society to misinform people on what this disorder is, and for those suffering from it to feel misunderstood and alone. Patients and their families don’t need more medical advice on the topic. They need to hear a raw, honest and messy story from someone who is not cured, but overtime has found the resources, hope and strength to continue living with it everyday until healing is granted. This is a story that both informs and shows the …

What's Growing On? Raising Awareness Of Florida’S Declining Citrus Industry And Its Economic Impact, Emily Gail Snyder

Masters Theses

The adult population of Central Florida fails to understand the consequences of the decline of the citrus industry in the state of Florida resulting in lost jobs and wages, lost tax revenue, and a loss of acreage due to the increase in housing and infrastructure from the influx of people moving to Florida. The decline of the citrus industry in Florida is a large problem that not many people recognize as an issue. With nearly 6.9 billion dollars earned for the state of Florida along with the support of approximately 33,000 jobs, the citrus industry is a major contributor to …

Tiktok’S Influence On Generation Z Female’S Comparative Behavior, Brookelynn Dinkler

Masters Theses

The purpose of this study was to address TikTok’s role in the comparative behaviors among Generation Z females. This study specifically evaluated the communication of society’s perception of beauty standards and how it resonates with and influences TikTok users. A qualitative approach was taken to gain a better understanding of the lived experiences of participants and fill the gap in qualitative media effects research. The research question being addressed was: How has TikTok influenced society's idea of physical beauty and body image concerns among Generation Z females? Through the lens of social comparison theory, the research found that the application …

Headstarting Eastern Box Turtles In Southwest Michigan: Implications For Growth, Survival, And Spatial Ecology, Faith C. Kuzma

Masters Theses

Turtles and tortoises are one of the most endangered groups of animals in the world as anthropogenic activities like overexploitation, collection for the pet trade, and habitat loss and fragmentation have caused dramatic population declines in recent years. As a result, proactive conservation techniques are being increasingly implemented to facilitate population recovery. Headstarting is a popular chelonian conservation technique that aims to reduce vulnerability and increase survival of juvenile turtles. While headstarting has been a valuable tool for many species, there is increasing evidence that species-specific influences impact its success. In this study, we headstarted four annual cohorts of eastern …

A Comparative Study Of Biocrusts On Gypsum And Non-Gypsum Soils In The Northern Chihuahuan And Eastern Mojave Deserts, Usa: Biocrust Mosses Respond To Soil, Environmental, And Climatic Conditions, Katelyn Gobbie

Masters Theses

Biological soil crust communities (biocrusts) growing on gypsum soils have been well- documented for their prolific appearance and rich diversity of lichens and bryophytes. However, studies characterizing gypsum biocrusts have primarily occurred outside of the U.S., most of which lack comparisons to other soil types. We conducted intensive field surveys to evaluate the cover and frequency of biocrust functional groups and moss species on gypsum and non-gypsum soils in the U.S. regions with the most extensive gypsum outcrops, the northern Chihuahuan and eastern Mojave Deserts. We employed canonical correspondence analysis (CCA) to relate the observed differences in biocrust abundance and …

Self-Reported Multicultural Teaching Knowledge Of K-12 Teachers, Ailish Raftery

Masters Theses

Research continues to show that students who belong to racial and/or ethnic minority groups face a variety of challenges at school, such as disproportionate rates of drop out, behavioral problems, exclusionary discipline practices, absenteeism, placement in special education, and more. These challenges are thought to contribute to the academic achievement gap between White and racial/ethnic minority students throughout the American public school system. Therefore, it is important to assess the multicultural teaching competence of American teachers and investigate barriers to improving culturally responsive teaching practices. Past research has investigated teachers’ multicultural teaching competence, but fewer compared general and special education …

Covid-19 Pandemic And College Students’ Mental Health: Vulnerability And Resilience Factors, Jensyn Morrison

Masters Theses

The world became quickly and suddenly consumed by the COVID-19 pandemic in January 2020. Topics such as stay-at-home orders, isolation from society, and social distancing became trending discussion themes in news coverage and daily conversations. The present study aimed to examine the effects of the COVID-19 pandemic on the mental health of college students. Specifically, a total of 123 students from a rural Midwest university and an urban Southeast university in the United States participated in an online survey that assessed COVID-19-related vulnerability and resilience factors (e.g., employment status, living situation, religious beliefs, previous diagnosis, and vaccination status of individuals) …

Environmental Health And Impact Of Workload On Errors For Wildland Fire Personnel, Michael Bryan Held

Masters Theses

"This thesis offers an analysis of how environmental health and workload affect wildland fire dispatchers and firefighters, combining results from two studies. The first study, "Environmental Health of Wildland Firefighters: A Scoping Review," performs a scoping review of scientific literature that examines the unique environmental health challenges wildland firefighters face. The review points out the increased risks to safety, health, and well-being from more exposure to natural hazards, identifying key research gaps and priorities. It stresses the need to broaden the geographic and demographic scope of studies, improve analytical methods, and increase research funding and focus for wildland firefighters.

The …

Opossums And Pathogens: A Survey Of Vector-Borne And Zoonotic Pathogens From Didelphis Virginiana In The Midwest, Usa, Cassandra C. P. Strehl

Masters Theses

Didelphis virginiana are at elevated risk of exposure to many zoonotic and vector-borne pathogens (ZVBP) as a result of their unfastidious diets, large geographic ranges, and diverse habitat types. Didelphis virginiana are synanthropic animals, which is concerning considering the spillover risk of pathogens D. virginiana present as a result. 81 D. virginiana from Ohio and Illinois were screened for Rickettsia spp., Mycoplasma spp., Borrelia burgdorferi, Trypanosoma cruzi, and apicomplexan pathogens. Live D. virginiana were trapped in wire cage traps to perform venipuncture for blood collection. Samples collected as roadkill or from animal control companies were dissected and spleen …

Are Elaeagnus Umbellata Invasions Limited By Microbial Interactions?, Cody Anderson Leverette

Masters Theses

Mutualistic interactions with soil microbes are a key component of plant invasions. Mutualists such as ectomycorrhizal fungi and Rhizobia bacteria often limit invasive plant establishment and performance, but the role of nitrogen-fixing Frankia bacteria in invasions remains largely unexplored. In this study, I quantified the net effects of positive and negative plant-soil feedbacks, including Frankia nodulation, on invasive Elaeagnus umbellata (autumn olive; hereafter AO) seedling performance and traits at varying distances from focal shrubs using live soil and sterilized soil. The expectation was that seedling performance would decrease with further distance from shrubs as Frankia abundance decreased. Contrary to expectations, …

Exploring A Medicinal Strain Of White-Rot Fungus For Biofuel Applications, Kortney L. Lucius

Masters Theses

The major limitation to producing biofuels from lignocellulosic biomass, such as miscanthus straw, is the difficulty in accessing fermentable carbohydrates encased in lignin. Traditional methods for separating lignin are economically and environmentally costly. Biological pretreatment using white-rot fungi, such as Trametes versicolor, has been demonstrated to potentially reduce the need for harsh chemical and physical pretreatment methods. Despite these efforts, the process of converting lignocellulose to ethanol remains financially challenging. To explore a potential co-product for the process, this study evaluated the efficacy of T. versicolor strain CM-101, known for producing the valuable medicinal macromolecule polysaccharide-K (PSK), as a …

Quisieron Enterrarnos, Pero No Sabían Que Éramos Semillas: The Ayotzinapa 43 And The Historical Legacy Of Las Escuelas Normales Rurales, 1921-2014, Noah A. García

Masters Theses

In September of 2014, forty-three normalistas from the Escuela de Ayotzinapa were forcibly disappeared. While their whereabouts remain unknown, the attacks and subsequential forced disappearances is but one of many attacks the escuela normal rural has faced since its formation in 1926. This thesis traces the development of rural education in the post-revolutionary Mexican State and how its development provides insight into the 2014 forced disappearances. Additionally, I examine how the Escuela de Ayotzinapa’s legacy of a socialist education has historically been opposed. During its early years of operation, this form of education was predominantly challenged by conservatives and Catholics. …

Visualizing The Risks: The Significance Of Graphic Design In Educating Women About The Risks Of Prescription Opioids & Pre-Existing Mental Health Conditions, Natascha Foret Truong

Masters Theses

This thesis explores the critical issue of educating women about the increased risks of prescription opioid use and misuse relating to a co-occurring mental health illness. The research-based graphic design solutions proposed in the thesis aim to create awareness and provide knowledge to women on this matter. It is imperative to address this issue as it has severe consequences for women, their families, and society. This thesis utilizes research and best practices from scholarly articles, case studies, visual analysis, personas, and mind mapping to present graphic design solutions based on evidence. These solutions aim to educate women about the gender-specific …