Digital Commons Network^™

2023 Fall Commencement, Harding University

Commencement Programs

Program for the Harding University Commencement on December 16.

Commencement Speaker: Keith Cronk

Characterizing The Ecology Of Plains (Spilogale Interrupta) And Eastern (Spilogale Putorius) Spotted Skunks: A Systematic Literature Review And Population Assessment In Kansas, Jenell De La Peña

Electronic Theses & Dissertations

The plains spotted skunk (Spilogale interrupta) has recently been recognized as a distinct species from the eastern spotted skunk (Spilogale putorius). While once abundant across the central and eastern United States, both species have experienced population declines, resulting in their review for listing under the Endangered Species Act (1973). In Kansas, the plains spotted skunk has suffered a particularly dramatic decline, the last detection in the state having occurred in 2020. Additionally, due to the recent taxonomic split, many past studies reporting on S. putorius ecology actually describe findings of two species, potentially complicating our understanding …

Rolling The Crypto Dice: The Interplay Of Legal Environments, Market Uncertainty, And Gambling Attitudes On Users’ Behavioral Intentions, Ayman Abdalmajeed Alsmadi, Ahmed Shuhaiber, Khaled Saleh Al-Omoush

All Works

The high volatility and inherent high-risk nature of cryptocurrency investments promote the study of the determinants of value perception and the various factors influencing individuals’ intentions regarding whether to adopt, abstain from, or continue their investments in these dynamic cryptocurrency markets. The main aim of this study is to examine the determinants of behavioral intention to continue using cryptocurrencies. In addition, it is aimed at exploring the effect of gambling attitudes on the perceived benefits and legal environment in the cryptocurrency context. An online questionnaire was developed in order to gather data from 258 respondents in the United Arab Emirates …

Early-Age Strength And Failure Characteristics Of 3d Printable Polymer Concrete: Numerical Modelling And Experimental Testing, Mohammad Amin Dehghani Najvani

Civil Engineering ETDs

The time-dependent rheological and early-age strength parameters of Polymer concrete (PC) were investigated. PC flow decreased, and the static yield stress and thixotropy increased as the specimen aged, while the dynamic yield stress remained unchanged. The study found that the Herschel-Bulkley model can accurately describe the PC’s rheological behavior over time. The change in cohesion strength and internal friction angle over time was observed using uniaxial unconfined compression and direct shear tests of fresh PC. A time-dependent MohrCoulomb failure criterion was established. Temperature analysis was used to determine the gel time and explain the evolution of the time-dependent early-age strength …

Quantifying The Influences Of Abiotic And Biotic Factors On Post-Fire Vegetation In The Southwestern Us, Joseph Lafayette Crockett

Biology ETDs

The ongoing warming associated with climate change is increasing the flammability of southwestern US dry forests. As larger fractions of the landscape are impacted by high-severity fire, the potential exists for forests to convert to non-forest. Given that the forested area in the southwestern US is an important contributor of ecosystem services, quantifying limitations to vegetation establishment is critical to informing post-fire recovery efforts and understanding how ongoing climate change will limit seedling establishment in the future. To that end, this dissertation focuses on post-fire vegetation recovery of southwestern forests. First, I report on the influence of precipitation and topography …

Aerodynamic Dimpling For The Nose Cone Of A High-Power Competition Rocket, Graham Geoffrey Monroe

Mechanical Engineering ETDs

This thesis investigates nose cone dimpling for the reduction of the aerodynamic drag of a Level 3 High-Power amateur rocket. Two rocket launches were conducted. The first used a COTS nose cone with a smooth surface. A dimple distribution was created according to dimensions calculated by Sandia National Laboratories’ proprietary Right- Size Dimple Evaluator. A dimpled nose cone, designed with geometry matching the COTS component, was 3D printed. Axial acceleration and barometric pressure data, recorded by an onboard flight computer, were used to calculate and plot the drag coefficient as a function of the Reynolds number for the smooth and …

Main Effects Screening Study Of Fe/Kclo4 Thermal Battery Heat Pellet Resistive Activation, Bryan T. Steiner

Mechanical Engineering ETDs

Thermal battery iron-potassium perchlorate (Fe/KClO₄) heat pellets are often ignited by explosive igniters or heat paper. An alternative direct electrical ignition method via resistive heating is explored, which could improve thermal battery manufacturability and design flexibility. A main effects screening experiment was performed with the goal of confirming prior observed trends under more realistic test conditions and ranking the importance of design factors, to optimize future experiments and develop knowledge of the performance space. Relevant literature is examined to advance a theoretical understanding of resistive activation. Ignition sensitivity (go/no-go and time to ignition) and ignition energy are primary …

Screw Dislocations In A Holed Wedge, Gregory T. Whiteside

Mechanical Engineering ETDs

A numerical code has been designed and implemented to find the stress at any material point in a holed-wedge material due to any number of crystal or real screw dislocations in the wedge. The code implements the image dislocation method together with the collocation point method to find stresses at any material point. We demonstrate that the combined analytical-numerical method (analytical with the image dislocations and numerical with the collocation-point method) is valid in that it produces stress fields giving rise to zero traction on free surfaces as well at an arbitrary number of collocation points on void surfaces. Additionally, …

Control Of Fully-Actuated Aerial Manipulators And Omni-Directional Multirotors, Riley M. Mccarthy

Mechanical Engineering ETDs

This thesis details the system modeling, design, control, simulation, construction, and
testing of both a fully-actuated and omni-directional multirotor aerial system created
for the primary purpose of performing active tasks with their environment. This work
verifies the capabilities of both systems through empirical testing, and demonstrates
how through the use of new control methods and physical designs multirotors can
expand their purpose from passive inspection based tasks to active contact based
tasks. These systems take advantage of newly implemented control allocation features present in the PX4 flight control software, version 1.14. The use of which makes designing controllers for such …

Design, Fabrication And Characterization Of Zero Power Sensor/Harvester For Smart Grid Applications, Zeynel Guler

Mechanical Engineering ETDs

This study presents a flexible sensor/harvester device to be used in both electromagnetic sensing and energy harvesting applications for smart grids. When a current passes through a wire, the sensor detects the magnetic field created by that current. The sensor magnet interacts with the wire magnetic field resulting in a transfer of energy through the piezoelectric cantilever. Piezoelectric, conductive, magnetic, and magnetostrictive composite thin films were prepared to fabricate this device.

Initially, the magnet of the cantilever was optimized considering its shape, thickness, length, taper angle etc. via both simulations and experiments. Peak to peak voltage versus cantilever position graph …

Modeling Lithographic Quantum Dots And Donors For Quantum Computation And Simulation, Mitchell Ian Brickson

Physics & Astronomy ETDs

Our first focus is on few-hole quantum dots in germanium. We use discontinous Galerkin methods to discretize and solve the equations of a highly detailed k·p model that describes these systems, enabling a better understanding of experimental magnetospectroscopy results. We confirm the expected anisotropy of single-hole g-factors and describe mechanisms by which different orbital states have different g-factors. Building on this, we show that the g-factors in Ge holes are suciently sensitive to details of the device electrostatics that magnetospectroscopy data can be used to make a prediction of the underlying confinement potential. The second focus is on designing quantum …

Volumetric Imaging Using The Pupil-Matched Remote Focusing Technique In Light-Sheet Microscopy, Sayed Hassan Dibaji Foroushani

Optical Science and Engineering ETDs

ABSTRACT

The dissertation explores innovative techniques in light sheet microscopy, a pivotal tool in biomedical imaging, to enhance its speed, resolution, and efficiency in capturing dynamic biological processes. Light sheet microscopy allows for quick 3D imaging of biological specimens ranging from cells to organs with high spatiotemporal resolution, large field-of-view, and minimal damage, making it vital for in vivo imaging.

The first project introduces a novel optical concept designed to optimize Axially Swept Light Sheet Microscopy (ASLM). This technique is crucial for imaging specimens ranging from live cells to chemically cleared organs due to its versatility across different immersion media. …

An Inquiry Into Urban Schooling And The Social Justice Nexus: An Agency Case Study For Transformative Change, Eduardo E. Peña Jr.

Teacher Education, Educational Leadership & Policy ETDs

In an era of accountability and censorship in public schooling, teaching for social justice is a difficult proposition for K-5 teachers. This inquiry explored the pedagogical principles of five elementary school teachers who navigate the rigors of standardization while also providing an education with a social justice orientation. Using a critical lens, this study v i was guided by the following questions: (1) how do elementary teachers approach topics of social justice in their curriculum? (2) what are the pedagogical considerations for teachers in urban schooling? and (3) what structures prohibit or provide proliferation for the integration of social justice …

A Study Of Preservice Teachers' Preparedness To Teach Reading, Kelli Williams-Page

Teacher Education, Educational Leadership & Policy ETDs

Only 35% of fourth graders in the United States can read at the proficient level, and only 34% of eighth graders can read proficiently (National Assessment of Educational Progress [NAEP], 2022). The purpose of this study was to determine how preservice teachers (PSTs) describe their experience of the methodology of teaching reading in their literacy courses. In addition, what specific strategies for teaching reading do PSTs describe as the focus for their teaching reading preparation, and how do PSTs describe the potential of the strategies learned in their coursework to help them teach reading in their future positions? This study …

"I Know The Dream Mine Is True": Mormons, Mining, And The Making Of "Bad Religion" In Early Twentieth-Century Utah, Christine V. Shell

American Studies ETDs

In 1894, folksy Mormon farmer-turned-prophet John H. Koyle, Jr, dreamed that an angel from the Book of Mormon showed him where and how to mine for golden ore and Book of Mormon treasures. Shortly afterwards, Koyle and a handful of friends established the “Dream Mine” at the revealed location, and as word spread additional workers joined the cause—for this was a mine destined to save the Church of Jesus Christ of Latter-day Saints and its members from financial and spiritual ruin during the long-foretold apocalyptic “Last Days.”

Koyle’s followers took delight and solace from their participation in the Dream Mine’s …

"Un Pedacito De Nuestro Pais": Salvadoran Rootedness In Central Los Angeles, Ericka Arias

Latin American Studies ETDs

How has the Salvadoran Market contributed to a sense of cultural rootedness in Central Los Angeles? This thesis project examines the ways in which an informalized street vendor market has employed Latino Urbanism and Placemaking practices to foster a sense of cultural rootedness and belonging for the local Salvadoran community. Through community- based approaches and analysis, this thesis addresses the sociocultural importance of street vendors for immigrant communities and analyzes the ways in which this Salvadoran market facilitates placemaking practices that (re)unite Salvadorans with their cultural roots. This research contributes to subfields of Latino Urbanism and Informality, within Urban Studies, …

Physical Properties Of Copper Niobium Nanolamellar Composites Fabricated By Accumulative Roll Bonding, Jared Justice

Nuclear Engineering ETDs

Nanolamellar composites with high interface density have increased strength due to interfaces serving as barriers to dislocation movement and high radiation damage resistance. However, these interfaces also serve as barriers to electron motion, reducing the electrical resistivity and thermal conductivity. This work seeks to understand the inherent tradeoff between strength and physical properties of nanolamellar composites produced by accumulative roll bonding with layer thickness ranging from 25 nm to 193 nm. The electrical resistivity was investigated over temperatures ranging from 2 K to 300 K. The effect of longitudinal rolling and cross rolling was also investigated. Electrical resistivity results were …

Bitcoin Price Modeling Using Machine Learning Algorithms, Azadeh Golduzian

Mathematics & Statistics ETDs

Forecasting in financial markets with various technologies is critical nowadays. The Bitcoin cryptocurrency has grown in popularity in recent years, and as a result, many people all around the world have attempted to forecast its price. To improve forecast accuracy, we must employ multiple types of data and diverse approaches. This thesis combines textual and financial data and employs statistical methods and machine learning to forecast Bitcoin's price as precisely as possible. We show the performance of each strategy using Bitcoin data at the end of each chapter.

Scott, Sue Title Ix Interview, Debbie Touatelli

General Athletics

Sue Scott was the Women’s Athletic Director at American River College. The first part of the recording is the radio interview with Scott by Debbie [Touatelli], the second part is radio commentary on women's volleyball attendance vs. football by Gail Schramm of KUOP.

Parsons, Edgar Athletics Oral History, Cindy Spiro

General Athletics

Ed Parsons was a 1934 graduated of Pacific and athlete

Digital Journeys: A Narrative Inquiry Into The Experiences Of Third- Grade Through Fifth-Grade General Education Teachers Implementing Instructional Technology In Northern California, Erin Layng

Doctor of Education Program Dissertations

The problem studied was the utilization of instructional technology in elementary classrooms, from third-grade through fifth-grade, and how teachers experience the use of technology in teaching methods and student learning. The purpose of this qualitative narrative inquiry was to understand the experiences of third-grade through fifth-grade teachers regarding the implementation of instructional technology in their classrooms. The study's timing captured teachers' views on technology before, during, and after the 2020-2021 academic year, which was heavily impacted by the COVID-19 pandemic and distance learning. Qualitative narrative inquiry allowed for a rich exploration of the teachers' experiences, with results of the study …

Socially Engaged Engineering: A Framework For K-8 Education, Christine M. Cunningham, Gregory J. Kelly, Ashwin Mohan

Journal of Pre-College Engineering Education Research (J-PEER)

Socially engaged engineering provides for student learning of the design, analysis, and practices of engineering as well as the ways that engineering is situated in sociocultural contexts. This paper provides a conceptual framework regarding socially engaged engineering for K-8 educators, researchers, and curriculum designers. The framework identifies ways to support youth learning of engineering and considerations of technical, social, environmental, and ethical dimensions of engineering. As engineering enters K-8 educational settings, it is important to introduce the discipline in equity-oriented ways. We draw from the field of engineering for social justice to build this framework for examining engineering at the …

Machine Learning With Multi-Source Data To Predict And Explain Marine Pilot Occupational Accidents, Gokhan Camliyurt, Youngsoo Park, Daewon Kim, Won Sik Kang, Sangwon Park

Journal of Marine Science and Technology–Taiwan

Marine pilot occupational accidents during transfer to/from ships are the primary concern of the International Marine Pilots’ Association (IMPA) and industry professionals. There are multiple transfer methods for marine pilots, with the most common being the pilot boat. To reach the mother ship bridge, the following stages must be safely completed: car transfer, walking on the pier, pier to pilot boat, pilot transfer by boat, cutter to pilot ladder, mother ship freeboard climbing, and ship deck to the bridge. Each stage has its own risk. Previous accident records and expert opinions are commonly used to conduct a risk analysis and …

Is Digital Altruism The Same As Offline Altruism?: An Exploration Of Strength-Based Determinants Among Generation Z During Covid-19 Pandemic, Nair Shravya Sunil, Surekha Chukkali

Internet Journal of Allied Health Sciences and Practice

Digital altruism is a new form of altruism on social media platforms. Social media has been a vital tool for sharing and seeking information for day-to-day situations, enabling people to seek and render help. Engaging in helping behaviour could be purely out of altruism or can be traced back to their professional requirements. Social media platforms have brought out people’s altruistic side on multiple occasions. The present study looked at the altruism levels of Indian Generation-Z social media users and how it is influenced by the users’ strength-based determinants, i.e. empathy, compassion, social justice, optimism, social intelligence, and personality, compared …

Development And Validity Of The Student-Run Outpatient Physical Therapy Experience Survey: A Pilot Study, Teresa R. Bachman, Shannon Williams, Anne Boddy, Janet Bezner

Internet Journal of Allied Health Sciences and Practice

Purpose: The preparation of professionals who are culturally sensitive and provide patient centered care is an expected outcome of physical therapist education. A review of the literature revealed that patient experience and outcome data regarding physical therapy student-led clinics are lacking. The purpose of this pilot study was to develop a valid patient experience survey that assessed patient centeredness and cultural competence in a gender-neutral manner. Methods: Questions for a new survey, Student-run Outpatient Physical Therapy Experience Survey (SOPTES) were generated using two validated surveys, the Questionnaire of Patient’s Experiences in Post-Acute Outpatient Physical Therapy Settings (PEPAP-Q) and the Tucker-Culturally …

Physical Therapists And Physical Therapy Assistants’ Readiness Levels To Deliver Telehealth Services: A Survey Analysis, Bhavana Raja, Alicia Rabena-Amen, David Gillette, Preeti Oza, Todd E. Davenport

Internet Journal of Allied Health Sciences and Practice

Purpose: The purpose of this study was to investigate physical therapists (PT) and physical therapy assistants’ (PTA) readiness to deliver telehealth (TH) services during COVID-19 pandemic. Method: IRB approved this survey analysis study. The Modified Maryland TH Readiness Assessment Tool (mMTRAT) was distributed by email to all licensed PTs and PTAs in California in October 2020. One-way analysis of variance (ANOVA) was used to compare between-groups differences for continuous demographic data. Pearson chi-square analysis was used to assess between-group distributions of categorical data. The statistical significance of between-groups median mMTRAT scores was assessed using the Mann-Whitney U test. Statistical significance …

Physical Therapy Professionals’ Opioid Knowledge And Attitudes In A Midwestern State: A Cross Sectional Survey, Steven G. Kinney, John D. Kiesel

Internet Journal of Allied Health Sciences and Practice

Purpose: To determine perspectives towards opioid use, knowledge on managing an opioid overdose, and awareness towards individuals who use opioids of Indiana physical therapy (PT) professionals. Methods: An online questionnaire was disseminated to PT professionals in Indiana from various practice settings. This questionnaire included two standardized measures, the Opioid Overdose Knowledge Scale (OOKS) and the Opioid Overdose Attitude Scale (OOAS). An additional 12 questions regarding the role of PT and other groups in the opioid crisis as well as opioid education were included. These questions were developed by discussion between investigators as well as feedback from another rehabilitation professional. Descriptive …

Screening For Social Determinants Of Health In Ohio Physical And Occupational Therapists, Zoe Pullar, Chloe Bertke, Kayla Richard, Katharine Tafelski, Amy Hassen-Miller

Internet Journal of Allied Health Sciences and Practice

Purpose: The purpose of this study was to investigate if and how frequently Ohio occupational and physical therapists are screening for social determinants of health within their patient population. Method: A cross sectional electronic survey was sent out to all occupational and physical therapists in the state of Ohio who have an active license with the Ohio Occupational Therapy, Physical Therapy, and Athletic Trainers Board (There is a single board in Ohio that represents all three of these disciplines.). Frequencies and cross tabulations were analyzed to determine relationships between asking about social determinants of health and various demographic factors. Results: …

Clinical Leadership In Athletic Training, Tyler G. Vannucci, Lindsey E. Eberman, Matthew J. Rivera, Matthew J. Drescher, Justin Young, Kenneth E. Games

Internet Journal of Allied Health Sciences and Practice

Purpose: Clinical leadership behaviors demonstrated by nurses delivering patient care are associated with improved patient outcomes and increased job satisfaction. Clinical leadership behaviors have not been studied in athletic training; therefore, the purpose of this study was to investigate athletic trainers’ frequency of demonstrating these behaviors. Method: Participates completed an electronically distributed survey consisting of demographic variables, the Clinical Leadership Survey (CLS), and the Global Rating of Clinical Leadership Scale (GRCLS). Results: We found statistically significant differences between the CLS score of those in a supervisory role (M = 65.3 ± 5.4) and those who are not (M = 63.5 …

An Evaluation Of A Student Allied Health Professions’ Social Prescribing Scheme, Kirstie A. Goodchild, Anya De Iongh

Internet Journal of Allied Health Sciences and Practice

Purpose: Social prescribing is a core part of healthcare policy within the NHS and requires support and contributions from all healthcare professionals, including Allied Healthcare Professionals (AHPs). The well-established medical student-led social prescribing student champion scheme (SPSCS) has been expanded to include AHPs, and AHP champions were recruited to deliver peer-led activities focused on social prescribing. This article aimed to evaluate the impact of the scheme's expansion on AHP students. Method: Fourteen AHP champions ran 21 activities that reached 524 students. Those participating in the champion-led activities were asked to complete pre- and post-session surveys to capture the impact of …