Digital Commons Network^™

Helmholtz Cage: Software Development And Implementation For Cubesat Testing, Gustavo A. Cotom Lopez

University Honors Theses

This paper details the successful development and deployment of a Helmholtz cage system, designed to produce precisely controlled magnetic fields for testing and calibration purposes. The core focus was on creating a robust, modular software architecture enabling independent current modulation on each axis, comprehensive serial communication between multiple microcontrollers, and real-time data acquisition from the MR3 magnetometer. All software components, including the serial communication drivers, control algorithms, command line interface, and calibration routines, were developed from the ground up. The system was fully operational upon completion: all hardware components functioned as intended, serial communication with each subsystem was reliable, and …

Heroines Of Their Own Stories: Lower Socio-Economic Black And Hispanic Giftedness, Dace Ashcraft

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenological study was to describe the lived experiences of racially, ethnically, and economically diverse (REED) learners in developing gifted traits and behaviors for female students who have taken part in an extracurricular online course from the northeastern United States. Gifted traits and behaviors, or giftedness, was generally defined as what might be perceived as advanced ability or the potential for advanced ability in one or more specific areas. The theories guiding this study are Vygotsky’s sociocultural theory, which aids in understanding the influence of a student’s culture on higher-order mental functions originating in the social …

How Certain Is The Continuity Of The Panama Canal And How Will It Affect The Global Supply Chain Industry?, Enmanuel Rodriguez Correa

Honors Theses

The Panama Canal, a critical artery of global trade, is under mounting threat from prolonged droughts, water scarcity, and evolving geopolitical dynamics, casting doubt on its long-term viability. This thesis investigates the continuity of the Panama Canal’s operations amid intensifying climate change, and assesses the broader implications for the global supply chain. As the canal facilitates approximately 5% of global maritime trade and provides billions in annual cost savings to shipping companies, any disruption poses severe consequences for global commerce, economic stability, and trade logistics.

The analysis begins by situating the canal within its historical and geopolitical context, emphasizing its …

Conditional Quantization For Some Discrete Distributions, Edgar A. Gonzalez, Mrinal Kanti Roychowdhury, David A. Salinas, Vishal Veeramachaneni

School of Mathematical & Statistical Sciences Faculty Publications

Quantization for a Borel probability measure refers to the idea of estimating a given probability by a discrete probability with support containing a finite number of elements. If in the quantization some of the elements in the finite support are preselected, then the quantization is called a conditional quantization. In this paper, we have determined the conditional quantization, first for two different finite discrete distributions with a same conditional set, and for a finite discrete distribution with two different conditional sets. Next, we have determined the conditional and unconditional quantization for an infinite discrete distribution with support {12𝑛:𝑛∈ℕ}. We have …

Chicago Detective Explorers: Examining The Effects Of Applied Social Emotional Learning Practices On Project-Based Forensic Science, Technology, Engineering, And Math Education Within Out-Of-School Time Programs, Jesus Roberto Magallon

Theses and Dissertations from DePaul University

This dissertation investigates the impact of a project-based forensic science, technology, engineering, and math (STEM) course that utilized social-emotional learning (SEL) as part of its curriculum design during an out-of-school time (OST) summer program designed for high school students on Chicago’s far Northwest side. Although Durlak et al. (2011) showed that SEL improves academic achievement and well-being, its intersection with STEM remains underexamined. The Chicago Detective Explorers (CDE) program—designed and taught by the researcher—included a project-based forensic STEM curriculum (broadly defined as practice and analysis of physical evidence found at crime scenes) woven with SEL activities in areas such as …

Blockchain-Enabled Master Data Management, Shakhawat Hossain

Theses and Dissertations

Master Data Management (MDM) is essential for maintaining data quality, accuracy, consistency, and governance within organizations. However, traditional centralized MDM systems continue to face challenges related to data integrity, security, and scalability. This research presents a blockchain-enabled MDM framework designed to overcome these limitations by leveraging blockchain’s decentralized, immutable, and secure architecture. The study aims to identify and address the shortcomings of conventional MDM practices, examine the applicability of blockchain technology in enhancing these systems, and develop a functional prototype to validate the proposed model. The framework incorporates decentralized review mechanisms that improve auditability and ensure trusted data verification by …

Karcı Fractional Artificial Neural Networks (Karcıfann): A New Artificial Neural Networks Model Without Learning Rate And Its Problems, Meral Karakurt, Hülya Saygili, Ali̇ Karci

Turkish Journal of Electrical Engineering and Computer Sciences

The learning rate parameter used in classical artificial neural networks (ANNs) designed with stochastic gradient descent causes problems such as failure to learn, getting stuck in local minima, memorization, and long training times (divergence problem). To address these issues, this paper proposes a novel ANN method that uses a fractional derivative instead of Newton’s derivative. This method is referred to as Karcı fractional ANN (KarcıFANN). In classical ANNs, the weight update is done by assigning the same constant value to the learning rate in each iteration or for a set number of iterations. In contrast, in KarcıFANNs, the weight update …

A Proposed Coding Algorithm With Ai-Assisted Restoration Capability, Parviz Gharehbagheri, Hamid Haj Seyyed Javadi

Turkish Journal of Electrical Engineering and Computer Sciences

This paper introduces an innovative encoding method based on the concept of "distancecodes" , which allows characters to appear randomly in different locations during the decoding process. Codeword-based algorithms decode and present their characters sequentially, which can hinder accurate reconstruction in the event of incomplete text decoding, as there is no intelligent or non-intelligent model available for continuing the text reconstruction.In contrast, our proposed algorithm allows for the non-sequential and scattered appearance of characters throughout the data during the decoding process. This enables AI algorithms to restore undecoded characters using contextual information such as decoded characters, adjacent complete and incomplete …

Experiences Of Black Women School Counselors Coping With Student Suicide, Megan Patrice Ray

Walden Dissertations and Doctoral Studies

Suicide represents a major public health and educational concern and presents profound emotional and professional challenges for school counselors. This transcendental phenomenological study explored the lived experiences of nine certified school counselors of color who had experienced the death of a student by suicide while employed in K–12 educational settings. With this research, I sought to answer the question: What are the lived experiences of school counselors of color who have had a student die by suicide? Guided by Moustakas’ transcendental phenomenological framework, this study employed bracketing to set aside researcher bias and uncover the essence of participants lived experiences …

Hotlangbench, A Tiny Benchmark Suite For Higher-Order Statically Typed Languages, Konstantin Laufer

Computer Science: Faculty Publications and Other Works

This work in progress aims to compare various HOT (higher-order and statically typed, a term coined by Phil Wadler) through reproducible course-grained, wall-time benchmarks. Our overall goals include simplicity, agility, and reproducibility.

There is currently only one benchmark, but it brings out substantial performance differences among the various languages and platforms. It uses function composition and other higher-order constructs to build a pipeline of transformations, along with a brute-force iteration that is computationally expensive for input files specifying large ranges as function domains. We currently include versions in Modern C++, C#, Go, Haskell, Kotlin, Modern (stream-based) Java (24), OCaml, Scala …

Anticholinergic Burden In People With Intellectual Disability In Psychiatric Inpatient Units: Practice And Audit Recommendations, Rohit Shankar

Peninsula Medical School

Introduction: Anticholinergic burden (ACB) is the cumulativeeffect of taking multiple medications with anticholinergic properties. ACB is associated with polypharmacy, increased comorbidity, and premature mortality in people with intellectualdisability (PwID). No clinical standards for ACB monitoring specific to PwID exist, particularly in psychiatric inpatient unitswhere the risk of ACB is highest.Method: We used the ACB Calculator and Anticholinergic Effecton Cognition (AEC) scale to compute ACB scores in two Englishpsychiatric units. We administered the Liverpool University SideEffect Rating Scale (LUNSERS) and Glasgow Antipsychotic SideEffect Scale (GASS) to examine patients’ perception of sideeffects.Results: Of 19 patients, the ACB Calculator mean was 6.68 andAEC …

Ypfs Lessons Learned Oral History Project: An Interview With William White, William White, Mercedes Cardona

Documents

No abstract provided.

First-Generation College Students' Transition Experiences After A Bridge Program, Alison Irvine Mcmurry

Theses and Dissertations

First-generation college students (FGCS) often encounter greater challenges than their peers. Universities offer transition programs like bridge programs, orientations, and advising, but service gaps contribute to FGCS difficulties. Bridge programs are often implemented for specific student groups that the university believes to be at-risk or more vulnerable than their peers. Targeted students are asked to come to campus early for additional training, education, and advising. The program is thought to bridge the gap between what they know and what they need to know to be college-ready and on-level with their peers. This case study examines the transition experiences of seven …

Emerging Investigator Series: Are We Undervaluing Septage? Rethinking Septage Management For Nutrient Recovery And Environmental Protection, Kevin Orner, Stetson Rowles, Sara F. Heger, Ben Howard

Civil Engineering & Construction: Faculty Publications

An estimated 20–25% percent of households in the US rely on on-site sanitation via septic tanks to manage their wastewater. Septage management strategies such as land application, treatment at wastewater treatment plants, and treatment at independent septage treatment plants are common regulated and protective processes for managing septage. There can, however, be potentially negative environmental impacts such as groundwater contamination if septic systems are failing or improperly designed. In this perspective, we reimagine septage management at each step of the septage value chain, identify barriers to change, and propose solutions to overcome these existing barriers. Reimagined septage management can take …

Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Final Multi-Pathway Residential Metals Abatement Program (Rmap) Plan (Dated March 27, 2025), Molly Roby

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Personalizing Neoadjuvant Chemotherapy Regimens For Triple-Negative Breast Cancer Using A Biology-Based Digital Twin, Chase Christenson, Chengyue Wu, David A Hormuth, Jingfei Ma, Clinton Yam, Gaiane M Rauch, Thomas E Yankeelov

Faculty, Staff and Student Publications

Despite advances triple negative breast cancer treatment, ~50% of patients will not achieve a pathological complete response prior to surgery with standard of care neoadjuvant therapy (NAT). We hypothesize that personalized regimens for NAT could significantly improve patient outcomes, which we address with a patient-specific digital twin framework. This framework is established by calibrating a biology-based model to longitudinal magnetic resonance images with approximate Bayesian computation. We then apply optimal control theory to either (1) reduce the final tumor cell number with equivalent dose, or (2) reduce the total dose of NAT with equivalent response. For (1), the personalized regimens …

From Laity To Leadership: A Training Program For Christians New To Leadership, Arlene J. Hopkins

Doctoral Dissertations and Projects

Christian leadership development is vital to fulfill the mission of the church, to build up and equip the saints to live in abundant spiritual closeness to God and others. As congregants look to church leaders for guidance, instruction, and a godly leadership model, educating, training, and nurturing these leaders as they impact the congregation is imperative. This is especially true for individuals new to leadership roles within the church. Therefore, this project aims to provide foundational biblical, spiritual, and leadership training to new lay leaders at the New Life Worship Center Church. The new leadership training program, a mandatory and …

Balance And Blend: Quality Of Life And Work-Life Balance In Military Reservist Band Directors, Jeremy Ryan White

Doctoral Dissertations and Projects

Despite the research on work-life balance and stress management in various fields and stages of life, the perspectives of music educators serving in the military as part-time reservist musicians have yet to be explored. Teachers with a desire to serve in the military may find the part-time status appealing, as most duties are performed on weekends or during the summer. While there are many benefits to serving one’s country as a reservist, this second career may place added stress on the service members and their families. This qualitative hermeneutic phenomenological study will gather data via qualitative surveys collected from Military …

A Causal-Comparative Study Between The Aeronautical Decision-Making Skills Of Collegiately And Non-Collegiately Trained Private Pilots, Karl P. Winters

Doctoral Dissertations and Projects

The purpose of this quantitative causal-comparative design study was to examine the relationship between private pilots’ flight training background (collegiate or non-collegiate) and aeronautical decision-making (ADM) skills among recently certificated private pilots enrolled in a commercial pilot flight training course at a Part 141 flight training program in a large, private, mid-Atlantic university. The problem is that although deficient ADM is a known major contributor to fatal general aviation (GA) accidents, it is unknown if there is a difference in the ADM skills of collegiately and non-collegiately trained private pilots. This study, built on the framework of dual-process theory and …

The Influence Of Homework On The Learning And Achievement Of Middle School Students In Southern Maryland: A Multiple-Case Study, Andrea J. Williams

Doctoral Dissertations and Projects

The purpose of this qualitative multiple-case study was to explore middle school teachers’ perceptions of how homework influenced academic achievement and student learning in Southern Maryland. The theory guiding this study was Bandura’s theory of social knowledge. Bandura suggests that observation, modeling, and role-play are significant in how individuals learn because these direct experiences shift one’s environment. In this study, 14 middle school teachers in Southern Maryland were interviewed, seven of whom were employed at a school with the standard practice of homework, and seven worked at a school with a “No Homework” policy. Data collection, interviews, and questionnaires were …

The Impacts Of Incremental Tax Rates On The Sustainability And Growth Possibilities For Small And Medium Enterprises (Smes) In Sierra Leone, Mohamed Ambrose Ndoinjeh

Doctoral Dissertations and Projects

This study investigated the challenges confronting small and medium-sized enterprises (SMEs) in Western Sierra Leone, with a particular focus on the impacts of rising tax rates. These increasing tax burdens restrict investment opportunities and impede growth, resulting in cash flow issues that jeopardize the sustainability of many SMEs. Employing a qualitative methodology, the research involved in-depth interviews and structured surveys with SME owners, representatives, and officials from the National Revenue Authority (NRA). The findings indicated that escalating tax rates, along with other issues such as corruption and political connections, significantly hindered SMEs growth, underscoring critical implications for their development.

Fired And Fractured: An Analysis Of Broken Ceramics, Evan Mcguire

Honors Projects

How does the construction of a ceramic object affect how it breaks? How does the force applied affect this break? These questions are based on my first-hand observations of the multitude of ceramic fragments found in different states of decay at archaeological sites. To answer these questions, I created samples that imitate ancient ceramics and then broke them in different ways. I then analyzed the fracture surfaces and looked for evidence of weak points in the objects. Pieces that were hit by a blunt force, such as a hammer, had radial fractures that formed along paths that had clusters of …

Factors Influencing Student Motivations And Experiences In Stem Course Office Hours, Gabriella R. Dauber, Jeremy L. Hsu

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Office hours are a part of nearly all science, technology, engineering, and mathematics (STEM) courses, with many academic and affective benefits for students who attend. However, despite their ubiquity, there has only been limited past work examining the sources of knowledge students draw from to shape their perceptions of office hours, as well as the factors that influence students' experiences in STEM course office hours. Here, we conducted semistructured interviews with 20 students enrolled in an introductory STEM course to investigate what motivates students to attend STEM course office hours, the factors that shape their experiences in office hours, and …

South Carolina And The Blue Ridge Rail Road, 1852 To 1873: Dreams Of Linking The South And West, Steve E. Gibson

Doctoral Dissertations and Projects

While the 1850s were productive and railroading did innovate with the initial adoption of steel, the embrace of the telegraph, the use of coal as a fuel, and the opening of generally long railroads, particularly in South Carolina, the railroads themselves generally remained conservative (almost timid) in their business models and strategic thinking. This was especially true in the South. Northern railroads recognized the need to connect major cities, connect seaports with crop productive hinterlands, and generally understood that railroad mobility, mixed economic development, and prosperity were intertwined and mutually reinforcing with the prosperity of both the railroad and the …

Shaping Music Education: Insights From High School And Collegiate Band Directors On Russell Boone's Influence, Devanon Petallio Fitzgerald

Doctoral Dissertations and Projects

Despite the valuable contributions and impacts that Historically Black Colleges and Universities band directors have made toward collegiate and high school band programs, there is little research on the contributions and implications of Russell Boone, a former band director and pioneer of the marching band program at Mississippi Valley State University. While many secondary school and collegiate band directors employ his techniques, only a few have highlighted his importance. Under the leadership of Russell Boone, the MVSU marching band made history as the first band from an HBCU to participate in the Rose Bowl parade. Additionally, the band participated in …

African–American Faculty Retention At Community Colleges: A Phenomenological Study, Wontae Javar Neal

Doctoral Dissertations and Projects

This hermeneutic phenomenological study explored the retention rates of African-American faculty in community colleges in the Northeast Region of the United States, highlighting their unique experiences and the factors influencing their professional lives. The theoretical framework for this study was the critical race theory (CRT), which is a post-Civil Rights social philosophy, legal theory, and technique for dealing with racism and our rapidly changing society. The central research question was: What are the professional and academic experiences of African-American community college faculty? The three research sub questions were: (1) How do the professional and academic experiences of African-American community college …

A Phenomenological Study: The Role Of The Elementary School Counselor, As Perceived By The Elementary School Teacher, Krista L. Williams

Doctoral Dissertations and Projects

The purpose of the phenomenological qualitative study is to describe elementary school teachers’ perceptions of the roles and responsibilities of elementary school counselors within the Greenbrier County School District. E. G. Williams’s trait-factor theory is the guiding theory for this study. Three research questions guide this study: How do elementary school teachers perceive the role of school counselors, what roles and responsibilities of elementary school counselors do elementary school teachers feel they utilize most in their school, and what do elementary school teachers perceive to be the needs of their school related to counseling? Eight to fifteen teachers from nine …

Principal-Agent Theory: An Examination Of Success Variations In Government-Funded Highway Infrastructure Projects In The United States, Felicia Mcintyre

Doctoral Dissertations and Projects

This quantitative, nonexperimental, analytical, and cross-sectional study examined the extent to which procurement models, financial risk allocation, and principal-agent communication complexities influenced the success of government-funded highway infrastructure projects in the United States (US). Data were collected from 84 completed highway infrastructure projects (N = 84) between 2001 and 2024 from the US Major Projects Database. Regression analysis and bootstrapped standard errors showed that the procurement model selected significantly affected project success. Public-private partnerships (PPPs) were shown to effectively reduce time overruns with a strong relationship potential for controlling project time growth. There were no statistically significant indirect effects of …

The Virtual Workforce: A Phenomenological Study Of Perceived Factors That Influence Employee Engagement, Sharon A. Palmer

Doctoral Dissertations and Projects

This qualitative study aimed to examine the lived experiences of employees working in the virtual workforce who have previously worked at an onsite location to better understand the tools needed to keep them engaged. This study aimed to fill the gap in research by gaining insight into the aspects unique to the virtual workplace that promote employee autonomy, competence, and connectedness. Semi-structured interviews were used to collect relevant informational data from 13 participants recruited from the professional social media platform LinkedIn. Participants were individuals aged 21 or older who had worked in a traditional and remote working environment, were currently …

The Impact Of The Mental Health Epidemic On Recruitment And Retention Of High School Male Singers, Trish Gladstone

Doctoral Dissertations and Projects

This qualitative methods study examines the impact of the mental health pandemic on the recruitment and retention of male choral members in Pennsylvania high school music choral programs since the end of the COVID-19 pandemic. Enrollment in many choral programs increased since the end of the COVID-19 pandemic, but the number of male enrollment is rising slower than ever. This thesis explores existing literature, personal interviews, and student focus group results to understand how mental health affects male singers quitting or remaining in the choral program. Research and investigations into the impact of the mental health pandemic in choral classrooms …