Digital Commons Network^™

A Study On The Environmental And Societal Impact Of Salad Packaging, Nathanael Stephens

All Theses

Packaged salads are becoming an increasingly popular segment of today’s fresh cut vegetables and salads market. This increased demand is leading to an increased need for packaging. This increase in packaging can lead to a potential increase in impact on the environment. With a large push for sustainability in the modern economy, this environmental impact is becoming more and more unacceptable. Several studies have been conducted to determine environmental impacts of packaging, but none have homed in on the salad packaging market segment in detail until this study. This study is also pioneering the way by pairing environmental impacts of …

To Be A Cloud, Huan Laplante

All Theses

The intersections between Buddhism, queerness, and art making support one another in their power to unveil the impermanent nature of the self. My work rests at these moments, taking refuge in the ability to simultaneously release and rebuild a sense of self that exists beyond the boundaries of individualism. To Be a Cloud documents my journey of looking into the origins of the self and reflecting upon the transience of body and mind. Utilizing a broad range of sensuous materials such as textiles, handmade paper, and charcoal, paired with the repetitive motions of stitching, tearing, and mark-making cultivate a rhythmic …

An Economic Impact And Investment Analysis Of Armillaria Root Rot In The United States Peach Industry, Gracie Herrin

All Theses

Peach production in the United States has decreased over the last decade due to increased disease prevalence. Armillaria root rot (ARR) is a lethal root fungus that affects many stone fruits, including peaches, often leading to rapid decline/death of trees and abandonment of orchards. This thesis is divided into four chapters which focus on answering four key questions that, to the best of my knowledge, have not been addressed in previous industry research.

The second chapter determines the magnitude of ARR disease prevalence in the United States and producers’ maximum willingness to pay (WTP) for a theoretical ARR-resistant rootstock. Results …

Scalable Data-Driven Predictive Modeling And Analytics For Cho Process Development Optimization, Sarah Mbiki

All Dissertations

In 1982, the FDA approved the first recombinant therapeutic protein, and since then, the biopharmaceutical industry has continued to develop innovative and highly effective biological drugs for various illnesses¹. These drugs are produced using host organisms that are modified to hold the genetic encoding of the targeted protein¹. Of the many host organisms, Chinese hamster ovary (CHO) cells are often used due to capability to perform posttranslational modification (PTM): which allows human-like synthesis of proteins unlikely to invoke immunogenicity in humans ^1,2.

Despite all the positive attributes, many challenges are associated with CHO cell cultures, …

Development Of A Tissue Engineered Cardiac Patch, Howard Herbert

All Dissertations

Cardiovascular Disease(CVD) is the leading cause of mortality in the developed world. CVD is most commonly manifested as atherosclerosis of the coronary arteries leading to Myocardial Infarction(MI). After MI, fibrosis of the ventricular wall leads to heart failure(HF), a pandemic affecting 26 million people globally. While therapies are continuously developed to combat HF, the treatment of choice, whole heart transplant, is limited by the availability of donor hearts. It is clear that there is a need to develop a long-term solution to combat HF and its enormous economic burden. Tissue Engineering and Regenerative Medicine holds promise as a possible solution …

Utilization Of Positive Youth Development Framework By Youth-Facing Organizations In Baltimore City, Selvi Rajagopal, Kaitlyn Harper, Katherine Holzhauer, Tina Kumra

Journal of Youth Development

Positive youth development (PYD) is a strengths-based approach to youth programming which has been tested with success in largely higher income settings with mostly White youth. This study aims to identify the extent to which organizations who work in an urban context serving predominately African American youth incorporate PYD principles into their work. Organizations located in Baltimore, Maryland working with youth ages 14–24 were recruited for participation. In-depth interviews were conducted with organization leaders in this qualitative study. Thematic analysis using a deductive approach identified common themes and activities across organizations that aligned with PYD elements. All 17 youth-facing organizations …

The Serbian Orthodox Church As A Transnational Political Actor: A Case Study Of Regime Change In Montenegro, Dunja Arandjelovic

All Theses

Although many scholars have considered how religious institutions can affect democratic change, little attention has been given to the contemporary transnational potential of a church with a distinctively national identity. This study will explore the capacity of national churches to act transnationally by analyzing the Serbian Orthodox Church’s (SOC) recent political intervention in Montenegro, during which the church mobilized almost half of the Montenegrin population during the COVID pandemic in a movement that led to the defeat of Montenegro’s president in parliamentary elections for the first time in 30 years. My project is based on in-depth elite interviews with ten …

The Effects Of Tubulin Post-Translational Modifications On The Flagellar Motility Of Trypanosoma Brucei, Katherine Wentworth

All Theses

Trypanosoma brucei is a parasitic kinetoplastid that causes African trypanosomiasis and is transmitted to a mammalian host by the tsetse fly (Glossina spp.). T. brucei relies on its flagellar motility to carry out its morphological changes from the procyclic form (predominant in the fly vector) to the bloodstream form (infectious form in mammals) and navigate the bloodstream of its host. The driving structure within the flagellum is the axoneme, which is composed of microtubules and dynein motor proteins. The tubulin code hypothesis suggests that cells regulate microtubule motor protein activity through post-translational modifications (PTMs) of alpha and beta …

Evaluation Of Novel Management Options For Bacterial Spot Of Peach, Daniela Moreno

All Theses

Xanthomonas arboricola pv. pruni (Xap) is an economically important pathogen causing bacterial spot of stone fruits worldwide. In the southeastern US management for this disease relies on copper and oxytetracycline (OTC) sprays, yet disease incidence remains high especially when the environmental conditions are conducive (warm and rainy). To further complicate disease management copper tolerant and OTC resistant (OTC^R) strains of Xap have been reported in the southeastern peach orchards. complicating disease management. Therefore, we aim to evaluate potential chemical and biological alternatives for disease management. The first objective was to evaluate a novel nano nanoformulation Bz (Zinc Borate) …

Implementing Sexual Violence Primary Prevention Programs: A Case Study Of Implementer Perspectives, Rachel Jackson-Gordon, Jacinda K. Dariotis, Bonnie S. Fisher, Victoria Dickman-Burnett

Journal of Youth Development

Sexual violence prevention programs are important for addressing sexual violence and are often implemented in local community and university settings. However, program implementer perspectives are often missing from academic research literature, limiting access to practical knowledge that can provide insights to improving programs and prevention. This study illustrates the landscape of sexual violence primary prevention work in a Midwestern metropolitan area. Seven interviews with community and university implementers took place in 2020, providing information about local prevention programs and expert insights to community prevention culture. Geographic data about implementation locations was also collected to visually assess coverage of preventive services …

The Importance Of Hand Motions For Communication And Interaction In Virtual Reality, Alex Adkins

All Dissertations

Virtual reality (VR) is a growing method of communication and play. Recent advances have enabled hand-tracking technologies for consumer VR headsets, allowing virtual hands to mimic a user's real hand movements in real-time. A growing number of users now utilize hand-tracking when using VR to manipulate objects or to create gestures when interacting with others. As VR grows as a tool and communication platform, it is important to understand how the rising prevalence of hand-tracking technology might affect users' experiences.

The goal of this dissertation is to investigate, through a series of experiments, how using hand motions in VR influences …

Likeliness To Recommend: A Mixed Methods Analysis Of Consumer Perception Of Homebuilders, Todd Usher

All Dissertations

Measures of consumers’ likeliness to recommend a business or company have been shown to relate to business performance. Less is known about how such scores might operate in the homebuilding industry. This study examines the factors influencing consumers’ perceptions of homebuilders, an area with little published research. Using a sequential mixed-methods approach, the study analyzes survey data from consumers (N = 366) who had new homes built within the preceding 12 months. Quantitative analyses of the data reveal several aspects of consumers’ likeliness to recommend a homebuilder. One finding of great interest is that consumers of the survey were more …

Enhancing The Performance Of Poly(3-Hexylthiophene) Based Organic Thin-Film Transistors Using An Interface Engineering Method, Eyob Negussie Tarekegn

All Dissertations

An original design and photolithographic fabrication process for poly(3-hexylthiophene-2, 5-diyl) (P3HT) based organic thin-film transistors (OTFTs) is presented. The structure of the transistors was based on the bottom gate bottom contact OTFT. The fabrication process was efficient, cost-effective, and relatively straightforward to implement. Current–voltage (I-V) measurements were performed to characterize the primary electronic properties of the transistors. The measured mobility of these transistors was significantly higher than most results reported in the literature for other similar bottom gate bottom contact P3HT OTFTs. The higher mobility is explained primarily by the effectiveness of the fabrication process in keeping the interfacial layers …

Metabolic Engineering Of Yarrowia Lipolytica For Enhanced Peroxisomal Production Of Polyhydroxyalkanoates, Michael Spagnuolo

All Dissertations

Traditional chemical processes are made inefficient by the generation of side products and reactions that fail to reach completion. Bioprocesses, on the other hand, lose product potential due to the necessity of growing the organism required to produce the desired compounds. The field of metabolic engineering often seeks to alter this balance between product formation and cell growth to generate more product from the same quantity of feed (reagent). In addition to balance, such organisms may also be engineered to produce the desired products from nontraditional substrates, such as waste compounds. In resource-poor environments, the ability to produce a wanted …

Ligand-Promoted Dissolution Of Uranyl Phosphate Across Scales, Brennan Ferguson

All Dissertations

The formation of uranyl phosphate precipitate is a remediation strategy because the low solubility of uranyl phosphate minerals, like chernikovite, limits the mobility of uranium in contaminated soils. However, organic ligands can complex with aqueous metal cations to form more soluble species. For example, citrate is a commonly occurring organic ligand produced by plants and microbes that increases the solubility of uranium and therefore the dissolution of uranyl phosphate minerals in the uranyl phosphate-citrate system. This effect is an important control on the mobility of uranium in organic-rich, and near-surface vegetated environments. Nevertheless, key aspects of the citrate-uranyl phosphate system …

Infusing Kirigami Principles Into Design Of Mechanical Properties, Hesameddin Khosravi

All Dissertations

The emergence of mechanical metamaterials — which derive their properties primarily from the underlying architecture rather than the constituent material — has unleashed a new era of material design and functionalities. To fully materialize the promising potentials of metamaterials, it is crucial to develop versatile, scalable, and easy-to-fabricate methods that can both generate and tailor the underlying periodic architecture. To this end, we propose the use of kirigami — a popular recreational art of cutting and manipulating paper — as a platform to create periodicity and super-stretchability. Kirigami has become a design and fabrication framework for constructing metamaterials, robotic tools, …

Profiling And Engineering The Unfolded Protein Response In Therapeutic Protein-Producing Cho Cell Lines, Dyllan Rives

All Dissertations

Industrial Chinese hamster ovary (CHO) production of therapeutics requires cell lines with high secretory capacity to avoid an accumulation of improperly folded proteins, or endoplasmic reticulum (ER) stress. This presents a challenging engineering bottleneck. The unfolded protein response (UPR) is initiated to overcome ER stress and reestablish homeostasis. In this dissertation, the impacts of ER stress and the UPR on protein production in mammalian cells are detailed, and both selection- and rational-based strategies for enhancing the ER stress response in productive CHO cell lines are reviewed. This project aims to expand on recent research efforts for engineering ER stress-related responses …

Implementation Of Sic Power Electronics For Green Energy Based Electrification Of Transportation, Naireeta Deb

All Dissertations

Increase in greenhouse gas emission poses a threat to the quality of air thus threatening the future of living beings on earth. A large part of the emission is produced by transport vehicles. Electric vehicles (EVs) are a great solution to this threat. They will completely replace the high usage of hydrocarbons in the transport sector. Energy efficiency and reduced local pollution can also be expected with full implementation of electrification of transportation. However, the current grid is not prepared to take the power load of EV charging if it were to happen readily. Moreover, critics are doubtful about the …

Academic Discourse Socialization Of International Graduate Students: The Negotiation Of Participation In Classroom Speaking Activities, Guoyong Wu

All Dissertations

As the graduate student body in American universities becomes more and more diverse in this globalized era, it has become critical to understand how newcomers from different linguistic, cultural and educational backgrounds acquire dominant language and academic practices, and how local academic communities themselves may or may not be transformed as a result of such diversity (Morita, 2004).

This dissertation conducted a qualitative descriptive study to investigate the socialization process primarily through classroom oral activities participation, for a group of international Chinese Ph.D. students to achieve their goals and thrive during their academic programs. As pressure increases on Ph.D. students …

X-Ray Interrogated Implantable Chemical And Strain Sensors For Monitoring Implant Associated Infections And Fracture Healing, Apeksha Rajamanthrilage

All Dissertations

Bone fracture healing includes complex and sequence of dynamic events to restore the integrity and biomechanical properties of the bone. While most of the fractures heal without any problem, healing is sometimes compromised. Two significant fracture healing complications are orthopedic implant-associated infections and non-unions/delayed union. These can be interrelated causes as well. Implant-associated infection can cause implant loosening, and as a result, it can delay the fracture healing process. Herein, we describe two different types of sensors that can be used in monitoring biochemical and biomechanical processes of fracture healing using X-rays.

We developed a XELCI (X-ray Excited Luminescence Chemical …

Empowering Older Adults With Their Information Privacy Management, Reza Ghaiumy Anaraky

All Dissertations

Literature depicts a deficit-based narrative around older adults and their technology use, suggesting that older adults are not able to keep up with their younger counterparts in adopting new technologies. In this dissertation, I argue that this view is not necessarily accurate or productive. Instead, I argue that the deficit is in the technology design, which is not inclusive and often caters to the needs of younger adults.

I study older and younger adults' privacy decision-making as a showcase. To study the privacy decision-making process with more granularity, I used a dual-route approach (decision heuristics and privacy calculus) to disentangle …

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The Impact Of Funds Of Knowledge On Elementary Multilingual Learners’ Perceptions Of Their Connection To Their Teacher And The Classroom, Kelli Lowe

All Dissertations

The U.S. population is rapidly becoming more culturally and linguistically diverse, and the education system is ill-equipped to meet the needs of these diverse learners thus creating large achievement gaps. In South Carolina, two factors contributing to an inadequate education system are the lack of teacher preparation programs that address cultural diversity and a predominantly White teacher workforce for an ever-growing diverse student body. The combination of these two factors is particularly detrimental to multilingual learners in the most critical time of a child’s development. This qualitative study was part of a collaboration and combined improvement science with design thinking …

Investigating Spatial Heterogeneity In Myocardial Wound Environments To Improve Therapy, Michael Potter

All Dissertations

Heart failure is a broad pathology manifestation categorized by an inability of the heart to successfully pump blood throughout the vast vessel network of the body. Within the United States, heart failure is projected to increase by approximately 46% from 2012 to 2030. Modalities of heart failure are generally related to wall mechanics that are impacted following myocardial infarction events. Interplay exists between the wall mechanics, responding cell populations, and the spatial heterogeneities in the resultant scar. This interplay directs the myocardium towards heart failure modalities governed by overly stiff or compliant states. It is essential to elucidate details underlying …

Development Of Mathematical Model And Characterization Of Internal Surface Obtained By Elasto-Abrasives Magneto-Spiral Finishing (Eamsf), Shivam Yadav, Amit Sangoi, Raju Pawade

Open Access Publishing Fund

The implantation of stents and instruments with capillary action demands super-finished internal surfaces of the manufactured product. Elasto-abrasives magneto-spiral finishing (EAMSF) is the attempt made in this paper to enhance finishing productivity by incorporating the abrasive flow in spiral motion due to the presence of the magnetic field. Here, novel impregnated elasto-magnetic abrasive particles (IMPs) are used in a magnetic field-assisted environment to polish the inner walls of the workpiece. In EAMSF, magnetic force provides excess finishing pressure to the abrasives. In contrast, the high-impact polystyrene (HIPS) elasticity absorbs the extra force of the IMPs on the finishing surface. An …

Spicy Memes From Spicy Panda, Parker Hundley, Anthony Jones, Darren Linvill, Lian Norris, Helen Schmidt, Jayson Warren

Media Forensics Hub Creative Inquiry Reports

No abstract provided.

Designing With And For Youth: A Participatory Design Research Approach For Critical Machine Learning Education, Golnaz Arastoopour Irgens, Ibrahim Adisa, Cinamon Bailey, Hazel Vega Quesada

Publications

As big data algorithm usage becomes more ubiquitous, it will become critical for all young people, particularly those from historically marginalized populations, to have a deep understanding of data science that empowers them to enact change in their local communities and globally. In this study, we explore the concept of critical machine learning: integrating machine learning knowledge content with social, ethical, and political effects of algorithms. We modified an intergenerational participatory design approach known as cooperative inquiry to co-design a critical machine learning educational program with and for youth ages 9 - 13 in two after-school centers in the southern …

Different Tides: A Journey Of Loss, Loneliness, And Friendship, William Gilmer

All Theses

This project is an exploration of story, producing an animatic for the original story Different Tides. Different Tides is a story about loss and separation, and how we carry with us a piece of everyone that has ever been close to us. This thesis will explore the themes of loneliness and loss that pervade the short, as well as the methods of visually expressing those themes. The goal of this thesis is to produce an animatable story, complete with storyboards, animatic, and color script, as well as explore the psychology behind loss and friendship.

Design Of Arbitrary Planar Optical Devices With Full Phase Control Using Nanoimprinting Of Refractive Index, Matthew Panipinto

All Theses

Planar optical devices offer a lightweight solution to the constraints found in traditional optical devices. While subwavelength patterning of optics offers attractive performance and size, traditional fabrication methods demand a trade-off between resolution and throughput that presents a significant hurdle for the widespread use of subwavelength devices. Nanoimprinting of refractive index (NIRI) is a novel fabrication method pioneered in previous work that offers promise in mitigating the throughput issues that hamstring traditional fabrication methods. However, NIRI has not been shown to impart full $2\pi$ phase control in planar optical devices, nor has a method for fabricating arbitrary designs using the …

Clemson Board Of Trustee Minutes, Compensation Committee, 2022 October 20, Clemson University Board Of Trustees

Minutes

No abstract provided.

Clemson Board Of Trustee Minutes, Institutional Advancement Committee, 2022 October 20, Clemson University Board Of Trustees

Minutes

No abstract provided.