Digital Commons Network^™

Code Beats - Teaching Computer Programming Coding Via Hip Hop Beats, Douglas Lusa Krug

Theses and Dissertations

Computer programming is a crucial skill for future professionals, not only those working as computer programmers but most modern workers. To train the next generation, society has created many initiatives to introduce computer programming to young students. These initiatives range from classes in a formal academic setting to informal, extracurricular sessions in after-school and summer camps. Even with the increasing offer of these initiatives to expand the opportunities to learn computer programming, the interest in computer programming remains low, especially among populations underrepresented in computing. This lack of interest could be impacted by stereotypical views of computer programming as tedious …

Patterns, Mechanisms, And Characterization Of Carbon Cycling Stability Following Partial Forest Disturbance, Kayla C. Mathes

Theses and Dissertations

Among the most essential questions in the era of climate change is how the forest carbon (C) cycle will respond to an increase in the extent of biotic disturbances from insects and pathogens. While research has focused on stand-replacing disturbance regimes, less is known about C cycling stability following partial disturbances that produce gradients of disturbance severity. Belowground C cycling responses to disturbance are especially poorly understood, even though temperate forest soils contain up to 50% of total ecosystem C and soil respiration (R_s) accounts for more than half of temperate forest C loss. Interpreting trends and mechanisms …

Exploring The Effect Of Early Motor Delay And Physical Therapy Interventions On The Parent-Child Relationship, Rebecca Molinini

Theses and Dissertations

Emotional availability (EA) or the ability of the parent-child dyad to engage emotionally and partake in congruent and mutually enjoyable interactions, is essential for familial health and well-being. EA is considered the “connective tissue” of healthy parent-child relationships and is associated with secure attachment, maternal mental health, and children’s adaptive development. Most evidence supporting the integral role of EA on healthy outcomes is supported by typically developing populations in which adults present with a social or biological risk factor such as experiencing past traumas of adversities with mental health. In line with the transactional model of development, children are equal …

Intrinsic Efficacy As A Determinant Of Opioid Effectiveness In Treatment Of Pain-Depressed Behavior, Edna Santos

Theses and Dissertations

Pain is a major public health concern that is commonly associated with behavioral depression, and a major goal in pain treatment is alleviation of pain-related behavioral depression. High-efficacy mu opioid receptor (MOR) agonists (e.g. fentanyl, morphine, oxycodone) are effective to treat pain, but their use is limited by side effects that not only endanger the patient but may also obscure analgesic rescue of pain-depressed behavior. The ongoing epidemic of opioid abuse and overdose deaths has stimulated research to discover non-opioid alternative analgesics; however, this search neglects the clinical potential of safer intermediate-efficacy MOR agonists (e.g. buprenorphine). The objective of the …

A Lifelong Network: Perceptions And Experiences Of First-Generation Alums After Graduation, Allison Toney

Theses and Dissertations

As first-generation students transition to college graduates, the question lies in whether institutions of higher education are continuing to provide opportunities for them as alums. As a result of first-generation college students being the first in their family to attend college, students may enter college not knowing what to expect. But institutions have evolved to provide services, resources and opportunities that support their success while enrolled. Upon graduation, the process of transitioning out of college can be a challenging time for students as they seek post-graduation success. Some institutions offer support and resources tailored specifically to first-generation graduates or graduates …

Novel Development Of A Low-Cost, Micrometer-Scale Tip-Enhanced Raman Spectroscopy System, John Yates

Theses and Dissertations

Modern scientific instruments are significant capital investments for universities. These investments can be outside of the funding capabilities of some smaller universities or departments and can be a significant barrier in the pursuit of scientific breakthroughs. This project aims to provide a template for universities or research groups to upgrade, at a reasonable price, an existing Raman spectroscopy system to a Tip-Enhanced Raman Spectroscopy (TERS) system. This system can serve as a permanent upgrade to an existing system or as a bridge necessary to prove the viability of a research path before significant capital investment in a commercial TERS system. …

Unraveling The Consequence Of Adult Onset Sulfatide Depletion: Its Implications In Myelin And Axonal Heath In The Context Of Neurodegenerative Disease, Elizabeth Dustin

Theses and Dissertations

Multiple Sclerosis is an immune mediated disease of the CNS. MS is diagnosed through detection of demyelinated regions. However, recent studies demonstrate that Normal Appearing White Matter (NAWM) contains substantial pathology. One such pathology observed in the NAWM is the reduction of sulfatide. The proper stoichiometry of lipids in myelin acts to maintain rapid conduction velocity, provide trophic support to the neuron, and protect the axon from degeneration. We previously characterized a mouse lacking sulfatide’s synthesizing enzyme, CST through constitutive gene disruption and demonstrate that sulfide is required for proper stability of the myelin sheath. However, since MS is typically …

Family-Based Support As Social Determinants Of Health Protective Factor On Depression Of Parents Of Children With Autism Spectrum Disorder, Bisola E. Duyile

Theses and Dissertations

All parents experience challenges in their caregiving roles (Barańczuk & Pisula, 2020). However, parents raising a child/children with disabilities experience different social barriers (Oliver, 1996) that may also contribute to additional stressors in their caregiving role (Tomeny, 2016). Although these parents, on average, have reported greater symptoms of depression than parents of typically developing children, research shows that parents who reported receiving social support had lower symptoms of depression and stress (Das et al., 2017; Singh et al., 2017). Through the social determinants of health (SDOH) framework (ODPHP, 2022), the present study investigated informal/family-based support and its protective impact on …

Understanding The Role Of A Regional Magnet School In Creative Identity Development Of Ethnically And Culturally Diverse Adolescents: A Case Study, Preeti Kamat

Theses and Dissertations

The purpose of this dissertation exploratory case study was to examine the creativity-supportive practices at an innovative regional magnet school shaping Ethnically & Culturally Diverse (ECD) students’ creative identity development as perceived by different stakeholders including ECD students enrolled in the first three cohorts, teachers, and school administrators of RichTech Regional Magnet High School [RRMHS] (pseudonym). This single qualitative case study employed a small component of a quantitative survey, the results of which guided in part the design of interview protocols and sampling procedures for recruiting qualitative participants. Using a pragmatic research lens, I obtained and analyzed the diverse qualitative …

Development Of Tangible Code Blocks For The Blind And Visually Impaired, Hyun Woo Kim

Theses and Dissertations

The fields of Science, Technology, Engineering, and Mathematics (STEM) have been growing at an accelerating rate in recent times. Knowing how to program has become one key skill for entering all of these STEM fields. However, many students find programming difficult. The block based programming language, Scratch, was specifically designed to lower hurdles to learning how to program for sighted students. Unfortunately, although very effective and widely used in K12 classrooms, Scratch, similar to other block based languages, is inaccessible to students who are blind and visually impaired (BVI). This thesis is part of a larger project to make the …

Interactions Between Hiv And Opioids On Antiretroviral Accumulation, The Blood Brain Barrier, And The Inflammatory Response In The Brain., Kara Rademeyer

Theses and Dissertations

The complex mechanisms related to HIV infection, neurodegeneration, and chronic neuroinflammation collectively describe neuroHIV (Hauser et al. 2007; Chang et al. 2014; Smith et al. 2014). Specifically, opioid abuse, poor penetration of antiretroviral (ARV) drugs, chronic inflammation and neuronal injury/degeneration are all implicated in neuroHIV (Fantuzzi et al. 2003; Letendre et al. 2004; Verani et al. 2005; Duncan and Sattentau 2011; Hong and Banks 2015; Simoes and Justino 2015; Olivier et al. 2018; Murphy et al. 2019; Osborne et al. 2020). For the first time, we demonstrate that morphine, fentanyl, and methadone in vivo alter the brain accumulation of ARVs, …

Synthesis And Application Of Redox-Active Covalent Organic Frameworks In Rechargeable Batteries, Mohammad K. Shehab

Theses and Dissertations

Synthesis and Application of Redox-Active Covalent Organic Frameworks in Rechargeable Batteries

Mohammad K. Shehab

Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States

Abstract

In recent years, lithium-ion batteries (LIBs) have been considered the dominant energy storage devices for portable electronics and electric vehicles due to their high energy density, low self-discharge rate, and long cycle life. In LIBs, the traditional positive electrodes employed are mainly derived from metal-containing inorganic compounds composed of cobalt, iron, nickel, or manganese (LiCoO₂, LiMn₂O₄, and LiFePO₄) coupled with graphite as the negative electrode. Despite …

Addressing Death Distress In Caregivers Of Patients With Malignant Glioma, Kelcie D. Willis

Theses and Dissertations

The field of psychosocial oncology seeks to improve the quality of life of patients and families affected by cancer. This task becomes increasingly important when there are limited, non-curative treatment options, a high probability of recurrence, and rapid functional decline, such as in the case of a malignant glioma (MG). Indeed, the diagnosis of a MG is associated with negative sequalae that often translates to higher caregiver burden. Caregivers—who must manage the functional decline of the patient, changes within the family, and a complicated medical system—often feel overwhelmed, isolated, and ill-equipped to handle these myriad responsibilities. While they also report …

Driven By Personality: Exploring The Relationship Between Custom Cars And Self-Expression, Tharwa Dalansi

Theses and Dissertations

Custom Car Culture (CCC) is a form of creativity that emerges from personal identities and passions. It involves the restoration, modification and personal adornment of commercially manufactured cars. This process creates a journey, where the enthusiast goes through multiple phases of self-reflection. But due to a lack of local resources, Qatar-based CCC enthusiasts often have to send their cars abroad to Dubai or Japan in order to customize them, relinquishing creative control in the process.

In response to these challenges, based on observations and interviews conducted among actual CCC enthusiasts, I develop a platform for engagement between these enthusiasts and …

Irene Cox, Lindsey Arturo

Theses and Dissertations

This document explores the question of “Who is Irene Cox?” as a jumping off point for creating an artwork which navigates online information landscapes and their logics circa 2023. By using thirteen unique but similar found paintings of the same floral still life by an artist named “Irene Cox” I create a visually meandering, absurd, haunting, and comical pathway for thinking through who exactly is Irene Cox via the internet. How such a question is even asked becomes the art in which a myriad of visual techniques are used to explore the nature of the question. Included in this paper …

Radiation Shielding Effectiveness Of Hafnium Diboride (Hfb2) Reinforced Epoxy Composites For Enhanced Radiation Protection And Safety, Furkan Erdogan

Theses and Dissertations

This thesis investigates the radiation shielding effectiveness of hafnium diboride (HfB2) reinforced epoxy composites, with the aim of enhancing radiation protection and safety in various applications. The study focuses on the development and characterization of HfB2-epoxy composites with varying weight percentages of HfB2 nanoparticles, as well as on the evaluation of their shielding effectiveness against gamma rays and thermal neutrons. The radiation shielding performance of the composites is assessed using gamma-ray spectroscopy and neutron counting, and the neutron attenuation efficacy is compared with that of 5% borated high-dense polyethylene. The results indicate that the HfB2-epoxy composites exhibit promising radiation shielding …

Intersect- On The Corner Of Princess Anne And William, Madison M. Goff

Theses and Dissertations

After a worldwide pandemic, perspectives towards personal space and private quarters have shifted. Social distancing procedures during COVID-19 altered the use of space, even after vaccinations have been administered. After limits on large gatherings and keeping 6 feet away from each other, what is the expectation that people hold now when in public?

Research will include interviewing the intended user groups (students and travelers), designers who are familiar with hospitality and hostel design, and hospitality professionals. The perspective on private and public space has shifted after the pandemic, so a survey will target hostel age groups that could help understand …

Advancing Our Understanding On The Role Of Bromodomain Phd-Finger Transcription Factor (Bptf) In Cancer Through The Analysis Of Publicly Available Databases., Preksha Jerajani

Theses and Dissertations

The initiation and progression of cancer are significantly influenced by genetic factors, and despite ongoing research, a definite cure for this disease remains elusive. Over time, researchers have explored various genes as potential targets for treating various types of cancer, and numerous innovative therapies continue to be developed. General chemotherapies face their own challenges like recurrence, while cancer specific drugs face the challenge of metastasis. Therefore, therapeutic strategies have slowly started to shift towards comprehending the pathways and corresponding genes that may be implicated in multiple types of cancer, with the aim of identifying more effective targets for drug development. …

Interiorization And Localization: An Analysis Of Immigration Enforcement In Local Contexts, Manuel N. Leiva

Theses and Dissertations

Immigration and Customs Enforcement (ICE) is a federal agency that plays a large role in surveilling, apprehending, detaining, incarcerating, and deporting undocumented immigrants in the United States. Due to constraints on the number of ICE’s available personnel and resources, the agency relies on deputizing, or devolving to local law enforcement agencies the authority to enforce federal immigration policies. Prior to the 1990s, the enforcement of policies directed at controlling flows of undocumented immigrants was generally under the purview of federal law enforcement agencies and administrators, not state or local ones. The attacks on September, 11^th 2001 represented a flashpoint, …

Model Based Systems Engineering Approaches To Chemicals And Materials Manufacturing, Quang Le

Theses and Dissertations

Model-based systems engineering (MBSE) is part of a long-term trend toward model-centric approaches adopted by many engineering disciplines. This work establishes the need for an MBSE approach by reviewing the importance, complexity, and vulnerability of the U.S. chemical supply chains. The origins, work processes, modeling approaches, and supporting tools of the systems engineering discipline (SE) are discussed, along with the limitations of the current Process Systems Engineering (PSE) framework. The case is made for MBSE as a more generalizable and robust approach. Systems modeling strategies for MBSE are introduced, as well as a novel MBSE method that supports the automation …

The Game Of Absolute, Rupeng Zhao

Theses and Dissertations

My thesis paper writing is a collection of short stories. Or it could be thought of as a small magazine or even an instruction manual for my work. There is a loose correspondence between its content and the symbols used in my installations. It is also realistically and physically presented in my exhibition as part of a "game box". The chaotic and contradictory narrative of this collection of short stories stems from my exhaustive pursuit of the elements that I try to approach in each story. This insatiable pattern of compulsive organization is also evident in the content of my …

A Tenth Of A Second, Natalia Andrea Mejía Murillo

Theses and Dissertations

A Tenth of a Second is an installation that explores modes of cartographic representation of the universe, specifically the moon, in dialogue with poetic language. The work is based on research and reflection on disciplines such as astronomy and archaeology and addresses issues such as the fragility of the reference and categorization systems we use to approach reality, tactility and the body as a standard of measurement.

Crafting Community: A Ceramics Center, Nadia Mechboukh

Theses and Dissertations

For artisans, being part of a community can facilitate engaging with the public. Networking and collaborating with peers are vital for building meaningful relationships that can lead to mutual inspiration and learning opportunities. By strengthening the connection between society and various forms of craft, we can weave invisible threads that link the stories that craft tells with the time and place in which they were created. Pottery is a craft that has existed for thousands of years. Ceramics and clay have carried the history of communities and their ways of living through centuries and have been used as identifiers of …

Waiting To Exhale, Abigail H. Ogle

Theses and Dissertations

We breathe as a measure of time, it keeps us alive, and fabricates the pattern of our lives. We are punctuated by “snarls,” “glitches,” or moments of irregularity – of trying to catch one's breath, having it taken away, or gasping for it. It is the punctuation of sighs, huffs, sniffs, scoffs, screams, and deep intakes that appear as glitches in the breathing system.

In our daily rhythm of breathing, the presence of the glitch, defined as potentiality, can create space for something unexpected or new to arise. Using the wind from fans and approximately 1,260 square feet of silk, …

Formal And Full Of Feeling, Kaitlyn Paston

Theses and Dissertations

Formal and Full of Feeling presents research and artistic work leading up to the thesis exhibition Come as you are, expanded in the Anderson Gallery May 2023. My research investigates the relationship between body and images. The research is presented as a journey guided by prompts, in pursuance of an aesthetic language to represent my experience of being a body. I discuss the animation process, research trajectories, installation of the exhibition and artworks that influenced the concepts.

Motivations Of Adult Patients Seeking Orthodontic Retreatment, Scott V. Philips

Theses and Dissertations

Objective: The aims of this study were (1) to compare the reasons adult patients seek orthodontic first-time treatment to the reasons adult patients seek orthodontic retreatment, and (2) to compare the concerns, motivations, and satisfaction levels of adult patients seeking orthodontic retreatment across the different previous treatment provider types of orthodontist, general dentist, and Direct-to-Consumer company.

Methods: At their initial orthodontic visit, adult patients (N=108) were invited to participate in the digital survey (REDCap) study. Subjects were recruited from the graduate orthodontics clinic at Virginia Commonwealth University and seven private orthodontic practices across the United States. Visual Analogue Scales were …

Mechanisms Of Emulsion Destabilization: An Investigation Of Surfactant, Stabilizer, And Detergent Based Formulations Using Diffusing Wave Spectroscopy, Jordan N. Nowaczyk

Theses and Dissertations

Conventional approaches for studying emulsions, such as microscopy and macroscopic phase tracking, present challenges when it comes to establishing detailed mechanistic descriptions of the impact of emulsifier and stabilizer additives. Additionally, while a combination of sizing methods and macroscopic phase tracking can provide insights into droplet size changes and concentration, the use of multiple measurements can be cumbersome and error-prone. It is the focus of this work, to present a new method for studying water in oil (W/O) emulsions that involves using diffusing wave spectroscopy (DWS) to examine the impact of three different surface stabilizing additives at varying concentrations. By …

Behind The Gate: Syrian Women In Soap Operas - Perception Vs. Reality, Tasnim J. Rahimah

Theses and Dissertations

Syria has witnessed what is known as al-fawra al-drameya, an eruption of drama since 2000. Every year, especially during Ramadan, dozens of Syrian soap operas are aired across the Arab world and beyond, depicting Syrians’ historical struggles as they fought for liberation from the French mandate at the beginning of the 20th century. Although women of those days were a vital part of that liberation movement and had prominent societal roles, these historical fiction soap operas chose to portray only the demure and dismissive female figures and not mention the women who were independent, courageous, and active members of the …

Discovery: A Visual Arts Elementary School, Cindy J. Perdomo

Theses and Dissertations

On average, school-age children spend more time in the classroom environment than they do at home. Why not provide environments that stimulate children’s curiosity to learn through visual arts? Including visual arts in educational programs can enhance students’ cognitive development, problem-solving abilities, cultural awareness, and critical thinking skills.

As someone who has attended various public schools in Florida, I’ve found that incorporating arts education into the curriculum can enhance students’ overall engagement with learning. Unfortunately, many students lack access to arts education due to a lack of funding and resources. Traditionally, the arts have been viewed as an opportunity for …

Investigating Actor Speech Training History Through The Lens Of Knight-Thompson Speechwork: How A Nonprescriptive Approach Revolutionizes The Field And Applications Outside Of A Theatrical Context, Harrison G. Runion

Theses and Dissertations

Speech training for actors in the United States has a history deeply rooted in prescriptive practices. Many speech trainers have and still do teach from a model that they consider to be the “correct” way to speak. These practices have proven to be quite damaging to students’ emotional and cultural identities, as speech is an inherent part of who we are as individuals. This thesis first examines such speech training pedagogies of the past, specifically the progression of William Tilly’s World English to Edith Skinner’s Good American Speech. Doing so establishes the necessary contextual understanding required to provide an alternative …