Digital Commons Network^™

Natural Resource Enterprises - Income Diversification And Conservation Practices Implemented On Private Lands In The United States, Daryl Jones

Journal of Extension

Wildlife-related recreation is popular with Americans spending over $150 billion dollars annually. I have conducted educational workshops (>100 events) to train U.S. landowners in natural resource enterprises development offering recreational hunting, angling, and nature tourism excursions along with conservation management practices to enhance wildlife habitats on their lands. To measure impacts, I conducted a comprehensive mail survey study with participants since 2010. Findings revealed that landowners who initiated these enterprises earned annual incomes and implemented conservation practices on properties. More training for landowners is recommended to increase income diversification and conservation of wildlife habitats and stewardship on private lands.

From Data To Action: An Adaptable Crosstabs Template For Participatory Survey Data Analysis, Natalia Pinzon, Vikram Koundinya, William O'R Dowling, Ryan Galt

Journal of Extension

We present a practical and accessible template for quantitative survey data analysis designed for non-academic researchers in order to facilitate engagement from community collaborators. The template, created in Google Sheets, is mainly for computing cross-tabulations, but it also displays frequency distributions and p-values for determining statistical significance. The template allows collaborators to record their observations and questions, promoting an efficient yet interactive review process and fostering a democratic analysis environment. Based on our own experience using this template for a data party, we highlight its effectiveness in promoting collaborative data interpretation, decision-making, and the actionable use of survey findings.

Cannabis Impacts On Native Lands: On The Need For Inclusion Of Native Perspectives In Extension Work, Jeremy Sorgen, Seth Larosa, Jennifer Sowerwine, Van Butsic, Peter Nelson, Melanie Mccavour, Shasta Gaughen, Anna Starkey

Journal of Extension

This article highlights the need for Cooperative Extension to increase awareness of Tribal concerns around activities that impact land, natural resources, and water. A research team at UC Berkeley worked with a Tribal Advisory Committee to conduct a survey of Tribal representatives’ perceptions of cannabis impacts on Native lands and cultural resources. The results show that there is widespread concern among Native communities about the environmental impacts of cannabis cultivation, especially to water quality, access, and availability. These concerns underscore the need to include Native communities in Extension’s agricultural and natural resource activities across all regions and sectors.

Generation Of A Transgenic Vector For The Purpose Of Transforming Charcoal Rot Resistance Into Soybeans (Glycine Max), John M. Bear Jr

Electronic Theses & Dissertations

Charcoal rot, caused by Macrophomina phaseolina, is among the most devastating fungal pathogens affecting G. max, particularly in drought-susceptible regions such as the midwestern United States. Traditional agricultural practices have included crop rotation and irrigation, which have proved ineffective or economically unfeasible. Charcoal rot infects over 500 other species of plants and can overwinter as dormant sclerotia which can germinate once soybeans are re-planted and infect young plants. As a result, transgenic solutions have offered a promising alternative for the development of disease-resistant soybeans. This thesis documents the construction of a transgenic vector to express BOZO, a …

Improvement Of Natural Environment Teaching Using Behavioral Skills Training, Josephine E. Elliott

Electronic Theses & Dissertations

Autism spectrum disorder (ASD) affects individuals through persistent deficits in social communication and excesses in restricted and/or repetitive behaviors (American Psychiatric Association, 2013). Applied behavior analysis (ABA) is the only evidence-based treatment for ASD and uses behavioral and learning principles to shape behavior change (Ferguson et al., 2022; Lax et al., 2023; National Autism Center, 2015). ABA has many teaching methods, one being discrete trial training (DTT; Smith, 2001). DTT is a highly structured method of teaching in which the instructor provides clear instructions, the learner responds in some way, and then the instructor gives a consequence for the response …

Fe/Co/Ni-Doped Mos2 An Electrocatalyst For Overall Water Splitting, Himanshi Lnu

Electronic Theses & Dissertations

Electrochemical water splitting is a promising method for sustainable hydrogen production, addressing global energy challenges. However, its practical application is limited by the need for efficient and durable electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). In this study, MoS₂ was doped with Co, Ni, and Fe at varying concentrations (5:0.5, 5:1, and 5:1.5) using a hydrothermal synthesis method to evaluate their potential as electrocatalysts for water splitting. Characterization revealed that metal doping significantly altered the electronic and morphological properties of MoS₂, enhancing its catalytic performance. Electrochemical evaluations in alkaline media demonstrated that Co-doped MoS₂ …

The Effects Of Reprocessing, Post-Processing Conditions, And Environmental Exposure On The Physical Properties Of Post-Industrial And Post-Consumer Polyethylene, Grant M. Howard

Electronic Theses & Dissertations

THE EFFECTS OF REPROCESSING, POST-PROCESSING CONDITIONS, AND ENVIRONMENTAL EXPOSURE ON THE PHYSICAL PROPERTIES OF POST-INDUSTRIAL AND POST-CONSUMER POLYETHYLENE

An Abstract of the Thesis by

Grant Howard

Plastic pollution is a rapidly growing problem. Globally, millions of tons of plastic waste are produced, and that amount is projected to increase each year. To address this, recycling of commodity thermoplastics like polyethylene, polypropylene, and polyethylene terephthalate, have become a point of emphasis in industry. Companies have started to investigate the use of recycled plastics instead of virgin plastics in their products. The advantages of using recycled material are to receive tax breaks, …

Epoxidized Castor Oil Based Thermosets With Reprocessable And Non Reprocessable Properties, Vaibhav Patel

Electronic Theses & Dissertations

Castor oil-based polymers have gained significant attention due to their renewable nature, low cost, and ease of processing, making them ideal for various applications, including biofuels and the petrochemical industry. Among these, epoxidized castor oil (ECO)-based thermosets have been extensively studied for their promising mechanical and thermal properties. This study focuses on recent advancements in ECO thermosets synthesized with 4,4-dithiodianiline (DTDA) which has aromatic disulfide bonds and 4,4-ditaminodiphenylmethane (DMPM) which has methylene bridge. FTIR spectroscopy confirmed the successful incorporation of epoxy functionalities into castor oil. The structure-reactivity relationship was examined through differential scanning calorimetry (DSC), which reveals that ECO_DMPM based …

Zn–Assisted Synthesis Of M (Mn/Fe/Co/Ni)-N-C Catalysts For Multifunctional Electrochemical Activity, Kemila A. Chaudhary

Electronic Theses & Dissertations

The design and development of atomically dispersed M-N-C catalysts (metal (M) supported on an nitrogen-carbon (NC) matrix with high multifunctional electrocatalytic performance is desirable but proved to be very challenging. Herein, we synthesized M-N-C catalysts (M = Fe, Co, Mn, and Ni) using Zn-assisted high temperature treatment and characterized using various techniques. The prepared catalysts were tested for their electrocatalytic performance towards oxygen and hydrogen evolution reaction (OER and HER) as well as oxygen reduction reaction (ORR) in alkaline media. The results indicated that Mn-N-C catalyst showed higher performance towards both the ORR (E_1/2 = 0.90 V) and …

High-Entropy (Feconimnal)3o4/Cnt And (Feconimnal)3o4/Rgo Hybrid Bi-Functional Catalyst For Hydrogen And Oxygen Evolution Reactions, Bhumikaben V. Makawana

Electronic Theses & Dissertations

Developing efficient and durable electrocatalysts for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is crucial for advancing sustainable energy conversion technologies. In this study, high-entropy (FeCoNiMnAl)₃O₄ and its hybrid forms supported on carbon nanotubes (CNTs) and reduced graphene oxide (rGO) were synthesized with varying carbon concentrations (5 mM, 10 mM, and 15 mM) and evaluated for their bifunctional electrocatalytic performance in alkaline media. The rGO-supported catalyst with 10 mM concentration exhibited the best HER performance, achieving a low overpotential of 162 mV at 10 mA/cm², followed by rGO (15 mM) and rGO (5 mM) …

Trade-Off Between Limonene & Geraniol-Based Reprocessable And Non-Reprocessable Epoxy Thermosets: Role Of Aliphatic Diamines In Polymer Networks Design, Priyankkumar Kanubhai Patel

Electronic Theses & Dissertations

The growing demand for sustainable materials, driven by environmental concerns and the rapid depletion of fossil fuels, has garnered significant attention in the fabrication of bio-based epoxy thermosets as renewable alternatives to petroleum-derived thermosetting polymers. The present study focuses on the synthesis and characterization of epoxy prepolymer resins derived from limonene and geraniol via a two-step process, followed by the fabrication of thermally cross-linked flexible epoxy thermoset films using various traditional aliphatic diamine curing agents, namely 1,2-ethylenediamine (EDA), 1,4-butylenediamine (BDA), and 1,6-hexamethylenediamine (HDA). Additionally, the incorporation of cystamine, a disulfide-containing diamine, enabled the formation of a covalent adaptable network through …

The Politics Of Being Heard: Communication And Power Struggles In Hunters Point Naval Shipyard, Caroline Trejo

Master's Projects and Capstones

The environmental and public health challenges in Bayview-Hunters Point have catalyzed widespread community activism, as residents and advocates respond to the ongoing fallout from radiological contamination at the Hunters Point Naval Shipyard. Communication plays a vital role in bridging the gap between affected communities and government entities throughout the cleanup process. This research asks: how have the communication strategies of advocacy groups influenced government actions and policies during the Bayview-Hunters Point Shipyard cleanup? To explore this question, I conducted semi-structured interviews with three community advocates, two former members of a non-partisan civil jury, one independent researcher, and one government official. …

An Attention-Based Deep Learning Model For Remaining Useful Life Prediction Of Aero-Engine, Ahmed Darwish, Karam M. Sallam, Ibrahim Alrashdi

Sustainable Machine Intelligence Journal

The prognosis of remaining useful life (RUL) for the aero-engine plays an indispensable role in enhancing the safety of aircraft and diminishing maintenance expenses. Several deep learning (DL) methods have been recently employed to handle this prediction problem due to their adaptable architectures and superior performance in handling the nonlinear characteristics of prediction problems. However, those models still need further improvement to better predict the status of aircraft engines. Therefore, this paper presents a new DL model, dubbed attention residual block-adaptive long short-term memory (ARB-ALSTM), based on integrating the attention mechanism with the long short-term memory network (LSTM) model and …

Having A Home To Come Home To: How Subsidized Housing Impacts Unhoused Pregnant Women, Stephanie O. Porvaznik

Master's Projects and Capstones

Community based organizations (CBOs) lead the charge in the fight to end housing insecurity and often must make up where local governments fall short. San Francisco is an example of a municipality that has a long history of addressing instances of housing insecurity for its residents, and where CBOs step in to provide housing support for populations with unique and special circumstances. One CBO that operates in San Francisco that I was interested in studying was the Homeless Prenatal Program (HPP), and the Jelani House, a housing subsidy that is funded and operated by the HPP for pregnant women who …

Gis And The 1944 U.S.–Mexico Treaty: Rethinking Transboundary Governance Under Climate And Demographic Stress, Pedro L. Sarabia

Master's Theses

This thesis examines the structural limitations of the 1944 U.S.–Mexico Water Treaty in the context of intensifying climate stress and growing population demand. Using GIS-based raster analysis of precipitation from 1981 to 2024, it maps hydrological trends in treaty-bound basins—particularly the Rio Grande and Lower Colorado—which exhibit persistently low and variable precipitation. These conditions, coupled with institutional rigidity, threaten the sustainability of binational water management. In addition to quantitative analysis, the study includes a qualitative assessment of transboundary governance dynamics, highlighting how institutional fragmentation and policy contention impede adaptive responses. The Treaty’s current surface-water-only framework excludes groundwater management, real-time data …

The Impact Of Teacher Training On Newcomer Integration, Erika Ibanez

Master's Theses

As global migration diversifies classrooms, teachers face growing responsibility to meet the academic, social, and emotional needs of students navigating new cultural and linguistic contexts. Therefore, this thesis examines how teacher training programs shape educators’ ability to support newcomer students in U.S. schools. Chapter One outlines the research problem and objectives, highlighting the need for inclusive teaching practices that promote newcomer integration. Chapter Two reviews literature on newcomer student integration, instructional strategies, and teacher professional development, framed by Culturally Sustaining Pedagogy. Chapter Three outlines the qualitative methodology, which involved semi-structured interviews with five K–12 teachers. Chapter Four presents key findings, …

Unequal Shocks: The Heterogeneous Impact Of Earthquakes, Claire Marie James

Master's Theses

What effect does neighborhood wealth have on disaster outcomes and disaster induced migration? Using the 2023 Kahramanmaraş Earthquake in Southern Türkiye and Syria as a natural shock, I examine how the short term migration response to building damage and earthquake exposure differs by average neighborhood home prices. Using a panel dataset of population by bing tile, from Meta’s Data for Good Project, I employ time series and cross sectional regression analysis. I find that wealthy neighborhoods are better able to retain population than non-wealthy counterparts.

The Long-Term Effect Of Universities On Local Technology, Dafina Rizvanolli

Master's Theses

This paper studies the long-term effects of universities on local economic complexity, contributing to new evidence on how higher education institutions shape local productive capabilities over time. While extensive research documents universities’ positive impact on development, fundamental questions remain about the mechanisms through which they operate. Our study employs the Economic Complexity Index (ECI), a measure that captures the diversity and ubiquity of regional economic structures, to provide novel insights into universities’ influence on local economies. Building on Andrews (2023), we exploit historical natural experiments in university site selection during the 19^th and 20^th centuries in the U.S. …

Leadership, Performance, And Retention: A Case Study Of Loreto Convent Girls' Secondary School, Matunda, Judith Nekesa

Master's Theses

This study investigates the role of leadership in influencing student performance and retention at Loreto Convent Girls’ Secondary School, Matunda, Kenya. Prompted by a noticeable decline in academic achievement, student enrolment, and staff morale, the research explores how leadership practices, governance structures, and the adequacy of leadership preparation have contributed to the institution’s challenges. Framed by Authentic Leadership Theory, the study employs a qualitative case study methodology, drawing on semi-structured interviews with stakeholders, including students, alumni, teachers, parents, and members of the Board of Management.

The findings reveal three interrelated leadership shortcomings: inadequate leadership development, frequent leadership changes, and governance …

Sustainability In Professional Sports: A New Nexus Of Profit And Social Responsibility, Matthew Teplitz

Master's Theses

The world is facing a climate crisis – corrective action that will improve our collective situation is needed, now. Those with the power to do so, in the capitalist structure under which we live, are largely the individuals, corporations, and governments with financial resources and the platform to inspire others to act. Two such entities, complete with the financial heft to make a difference and inspiration to spare, are North America’s National Basketball Association (NBA) and Spain’s La Liga. This thesis seeks to understand what distinguishes the NBA’s approach to sustainability from La Liga, and by employing each league as …

Mothers Who Homeschool: Experiences In Rural California, Kiah Combs

Master's Theses

The purpose of this study was to explore the experiences of mothers who homeschool

their children in the rural location of Shasta County, California (CA). This research was

guided by three research questions: 1) In what ways is the act of homeschooling a form

of resistance to existing power structures for mothers in a rural region in CA? 2) How

does the process of providing a homeschooling education for their children influence

mothers’ perceptions of themselves as confident and capable? 3) In what ways does

homeschooling allow mothers to offer their children an educational experience which

meets their unique needs …

Blind School Saved My Life: An Autoethnography On The Benefits Of Visual Impairment Schools, Valenzuella Jordan

Theses and Dissertations from DePaul University

This article is an autoethnography of my experiences in blind education. Covering the years from 1962-1977, this autoethnography compares my two years in public school education as a person with a visual impairment to my 12 years at a boarding school specifically designed for the visually impaired. The IDEA framework for disability education was developed in 1964 and I spent my early years of blindness educated under a program of that design with itinerant special education teachers. In 1965, I was admitted into the Illinois School for the Visually Impaired where I spent the rest of my years of K-12 …

Effects Of Different Forms Of Dietary Zinc On Weaned Steers When Fed Prior To Weaning, Christopher Lane Addison

Theses and Dissertations

Zinc (Zn) is crucial for many life sustaining processes within the body. Additional Zn is known to be beneficial during certain periods of increased stress. Weaning is one of the most stressful periods of beef calves’ lives. Due to this it was hypothesized that additional zinc in an organic form would increase weight gain and immune response compared to additional zinc in an inorganic form or no added zinc. No differences were found for ADG, Th score, IgG concentration, or mineral concentration among treatments. However, there was a novel and unexpected finding when there was no difference found in preweaning …

Real-Time Enhanced Tornado Warning Product Guidance Based On Tornado Debris Signature Height And Population Density, Alexander Cooke

Theses and Dissertations

This research aims to develop an operational program for enhancing real-time tornado warning capabilities by integrating tornado debris signature (TDS) analysis with population impact assessment. The proposed Python-based tool will ingest Level II radar data to identify and analyze TDS, estimating tornado intensity based on maximum TDS height. For high-intensity tornadoes, the program will project the potential impact area using storm motion vectors and integrate this with population density data. The system will assess whether the situation meets National Weather Service criteria for enhanced warning products, providing forecasters with rapid, objective guidance for critical warning decisions. The program’s performance will …

Best Practices In Community College Adult Education: Literature Review And Synthesis, Jon H. Lightsey

Theses and Dissertations

This study emphasizes the importance of adult education students and the critical lack of knowledge about promoting their success on satellite campuses in rural and low socioeconomic areas. This study aims to investigate best practices in adult education at community colleges to maintain the number of students enrolled until their program or training is completed. The high School Equivalency Diploma options include the GED, HiSET, and Competency-Based High School Equivalency Option. The results indicate adult education students might be more successful if they received the support services needed, such as counseling, tutoring, time management, and goal setting. This literature review …

The Effects Of Alfaxalone, Alone Or With Butorphanol, On The Ultrasonographic Appearance Of The Feline Spleen, Grace Mcbride

Theses and Dissertations

The sonographic effects of alfaxalone and butorphanol alone and in combination on feline splenic size, shape, margins, echogenicity, echotexture, and blood flow were investigated. In this randomized, prospective crossover study, 8 healthy adult cats were injected with alfaxalone 2.0 mg/kg IM, butorphanol 0.2 mg/kg IM, and each drug in combination. Splenic ultrasounds were performed before drug administration, then every 15 minutes for 1 hour. Heart rate, respiratory rate, and feline multiparametric sedation scores (FMSS) were recorded. Following at least a 7-day washout period, cats switched groups and the study was repeated. An increase in splenic size and no significant changes …

Integration Of Machine Learning Techniques With Computational Fluid Dynamics For Enhanced Backward-Facing Step Flow, Yahya Mekkaoui

Theses and Dissertations

This research presents a novel integrated framework combining computational fluid dynamics (CFD) with machine learning techniques to enhance the analysis of backward-facing step flows. A high-fidelity OpenFOAM CFD simulation was developed and validated against experimental data, accurately predicting the reattachment length (��/�� ≈ 6.18) and velocity profiles throughout the domain. Machine learning models, including Random Forest, Gradient Boosting, and Support Vector Regression, were integrated through a robust data pipeline, with the ensemble approach demonstrating superior performance (RMSE of 1.18 m/s, ��2 of 0.951). Feature importance analysis revealed pressure (32%) and turbulent kinetic energy (28%) as the dominant physical parameters governing …

Cotton Development, Yield, And Boll Distribution Response To Row Pattern And Plant Density, William Joseph Rutland

Theses and Dissertations

The effects of row pattern and plant density on the ability of cotton (Gossypium hirsutum L.) to compensate and sustain profitable yields has been evaluated by many studies. However, new varieties exhibiting more vigorous growth and more exaggerated row patterns have yet to be evaluated. Therefore, experiments were conducted in Starkville, MS and Stoneville, MS in 2021 and 2022 to evaluate the influence of 1x1 skip row patterns and plant density on cotton growth, development, yield, boll distribution, and profitability. In 2021 there was no yield response due to plant population. However, in 2022, yields increased as plant density increased. …

Shifting Sands: Moving From Reality To Unreality, Aaron Waterson

Theses and Dissertations

This is a series of stories that shifts from literary fiction to science fiction, each with their own inspiration and message. Inspirations include The Twilight Zone, Benjamin Percy, Da-Lin, Gabriel Garcia Marquez, The Sandman, and Endymion. Each of these stories is conversant with norms and traditions of storytelling and the connections between these and their inspirations are elaborated on in the Introduction that accompanies the collection as a whole.

Evaluating Rainfall Sensitivity Over Land To Tropical Cyclone Parameters Using Idealized Wrf, Madison C. Yawn

Theses and Dissertations

Tropical cyclones (TCs) are extreme weather events impacting the United States nearly every year. These events often cause severe damage due to the associated responses they produce including storm surge and rainfall, and the accurate estimation of these TC hazards is necessary to support coastal engineering, risk assessment, and emergency management activities. Evaluating TC-driven hazards is often done in combination with numerical models to simulate how environmental interactions alter the physical processes and responses of these storms. The purpose of this study was to simulate synthetic TC events using the Advanced Weather Research and Forecasting (WRF) model to understand how …