Digital Commons Network^™

Integrating Blockchain Technology Into The Software Development Life Cycle To Satisfy The Software Bill Of Materials Requirement For Government Software Systems, Walter T. Scott Ii

Theses and Dissertations

This thesis explores the integration of Blockchain Technology (BT) into the Software Development Life Cycle (SDLC) to satisfy the Software Bill of Materials (SBOM) requirement for government software systems. This study begins by synthesizing a standard SDLC definition from various government and industry references, which may provide the foundation for future efforts to standardize software development practices across the government software development community. This study proceeds to define working definitions for the software supply chain (SSC) and software supply chain management (SCM) before introducing and detailing the SBOM requirement as well as providing an overview of prior research regarding SBOMs …

Investigations On Structure-Related Properties Of Organic Inorganic Hybrid Materials For Multifunction, Anu Ranjani E Ms

Theses and Dissertations

Two-dimensional (2D) hybrid halide perovskites have become a versatile material in diverse applications like optoelectronics, lighting and display, magnetism, etc. These materials are often termed as layered hybrid halide perovskites (LHHPs) due to their unique structure with alternate organic and inorganic layers. The presence of insulating organic layers separates the inorganic perovskite slabs, creating a quantum-confined architectural configuration. This unique configuration endows these materials with a spectrum of distinctive functionalities, encompassing photovoltaics, lighting and displays, second harmonic generation, optical limiting, ferroelectricity, and ferromagnetism. The exceptional attribute is that a single LHHP can respond autonomously to external stimuli, such as changes …

Enhancing Security And Privacy For Smarter Environment Through A Robust Cyber-Physical System Framework, Ramya S

Theses and Dissertations

As digital computing paradigm and practices have emerged in disciplines, devices with processors and sensors were rudimentary, performing independent tasks with limited power. The first computer processors were slow, bulky and consuming high energy, as sensors in thermometers and pressure gauges provide original, independent measurements without effective communication, 1999. It often required powerful, energy-efficient processors and advanced sensors to enable seamless communication and sophisticated data processing.

These devices, since smart home systems to industrial automation tools, which continuously collect, analyse and share data via the internet, facilitating if real-time management, predictive maintenance, and improved seamless experience are used, transforming everyday …

Deep Learning Technique For The Classification Of Stress Among The Students Using Physiological Biomarkers With A Hybrid Feature Approach, Rajendran Vg

Theses and Dissertations

Adolescence is a crucial part in life, and the presence of stress, anxiety, depression, and health issues during this stage is a great concern. This research aims to analyze and predict the cognitive stress in students during the examination period using EEG biomarkers. In this study, raw EEG data is acquired under two different experimental conditions, before and after examination, from 14 subjects with an eight-channel Enobio device. After preprocessing of the EEG signal, the brain rhythms such as theta, alpha, and beta sub-band energies and EEG band ratios such as neural activity, heart rate, arousal index, vigilance index and …

Ai In Healthcare: Early Diagnosis Of Skin Cancer Using Medical Image Processing And Deep Neural Networks, Nirmala V

Theses and Dissertations

Several cancer types are commonly prevalent, and skin cancer is one among them, becoming even more widespread worldwide in the last few decades. To diagnose skin cancer at an early stage and obtain appropriate therapy to treat it, there is a demand to know more about the disease’s characteristics or severity. Skin cancer is caused mainly by various reasons, including damage of the sun or tanning beds by ultraviolet light exposure.

Failing to treat skin cancer might substantially impair an individual’s quality of life as the victim. They likely to experience physical issues linked with the deformities caused by psychological …

Horizontal Gene Transfer In Intergenomic Conflicts Between Bacteria And Their Genetic Parasites, Pavithra A.S

Theses and Dissertations

Bacteria are constantly infected by obligate acellular genetic parasites, such as plasmids and phages. The genetic conflicts between bacteria and their parasites, aggravated by horizontal gene transfer, exert significant ecological and evolutionary pressure on their respective genomes. The eco-evolutionary significance of parasite-derived elements on bacterial genomes is not well understood.

This study explored the genomics of plasmid-derived genetic elements such as antimicrobial resistance genes (ARGs), type II endonuclease toxin-antitoxin systems (TAs) and endonuclease colicin-like bacteriocin (CLB) operons, and phage-derived prophages of Escherichia coli using bioinformatics and developing novel hybrid agent-based models. We sequenced eight E. coli isolated from local wastewater …

Sustainable Valorization Of Woody And Herbaceous Biomass For Energy And Environmental Applications, Subramaniyasharma S

Theses and Dissertations

Pyrolysis is a thermochemical conversion method to produce gas and liquid fuels from lignocellulosic biomass. This process involves the thermal decomposition of organic compounds without oxygen. The vapors formed are rapidly condensed to yield a liquid product called bio-oil and a solid product called biochar.

In the present study, Sesame indicum (SI) (herbaceous agro residue) and Prosopis julifora (PJ) (woody biomass weed) were chosen as feedstocks for the pyrolysis process and the respective solid and liquid products were collected and characterized. The proportion of biomass pyrolysis products is significantly influenced by biomass composition and process conditions such as temperature, heating …

Development Of Electrochemical Sensors For The Detection Of Pesticide Residues In Water, Indhu S

Theses and Dissertations

Intentional and unintentional events of pesticide poisoning and their accidental exposure have significantly raised the concerns of global organizations to classify these chemical compounds based on their toxicity, to assign permissible limits, and to appoint task force for periodic monitoring of their presence in water bodies.

In this context, researchers are continually seeking potential alternatives to develop water quality sensors with higher selectivity to obtain the desired performance during real-time assessment. Electrochemical sensors involving interface materials of distinguishing capacity at elevated matrix complexity are desirable. However, there remains a challenge in designing suitable techniques, methodologies, and appropriate validations to support …

Temporal Dynamics Of Coastal Sediment Characteristics: A Comparative Study On Pre- And Post-2004 Tsunami Event Along The Nagoor - Poompuhar Stretch, Tamil Nadu, Yamini S

Theses and Dissertations

Tsunamis represent some of the most devastating natural events for coastal regions, as exemplified by the 26th December 2004 Great Indonesian Earthquake triggered a massive tsunami across the Bay of Bengal and Indian Ocean, causing extensive destruction in various countries, including India. This study addresses a significant gap in the literature by focusing on the detailed sedimentological aspects of coastal dynamics. Specifically, it examines the pre-tsunami (December 2004), post-tsunami (January 2005), and recent (December 2022) sediment characteristics along a 35 km stretch of the Coromandel coast from Poompuhar to Nagoor.

Eight stations were selected for sampling: Poompuhar, Chinnankudi, Kuttyandiyur, Chandrapadi, …

Investigations On V2o5 And Its Derivative Nanocomposites For Photocatalytic Textile Organic Dye Degradation, Jenifer A

Theses and Dissertations

In recent times, organic dyes from industrial sludge become one of the significant causes of water contamination due to their utility in textile and paper manufacturing industries. These organic dyes are highly toxic and carcinogenic. Fortunately, the photocatalytic degradation process is a practical tool for decomposing toxic organic matter in wastewater by utilizing light. The photodegradation process can be performed using semiconductor materials to purify wastewater. Thus, semiconductor photocatalysis is a desirable alternative technique for decolorizing various organic pollutants.

In this context, the present work reports the preparation and characterization of V2O5 nanocomposites by facile methods and tests them against …

Identification Of Delamination Defect In Fibre Reinforced Polymer Composite Tapered Plate Based On Vibration Measurement, Venkatesan M

Theses and Dissertations

Fibre-reinforced polymer (FRP) composite plates have been widely used in various engineering applications due to their high strength-to-weight ratio, corrosion resistance, and durability. Despite their many benefits, Delamination is a separation of the layers in composite material and can occur due to various factors such as impact, fatigue, and manufacturing defects. Identifying delamination in composite structures is crucial for ensuring safety and reliability. In this study, model-dependent vibration methods, which are an effective non-destructive technique, were utilised for delamination identification. The primary objective is to investigate the dynamic behaviour of delaminated thickness-tapered plates and develop a reliable methodology for delamination …

Pm2.5 In The Respirable Air A Threat To Heart Health Investigating The Influence On Cardiovascular Performance And Unmasking The Potential Strategies For Cardio Protection, Bhavana Sivakumar

Theses and Dissertations

Air pollution, characterized by the presence of harmful substances in the atmosphere, represents a significant environmental and public health challenge impacting millions worldwide. The World Health Organization (WHO) reports that approximately 90% of the global population resides in regions where air pollution surpasses the recommended thresholds for healthy air quality. Within the realm of air pollution, the composition of particulate matter emerges as a pivotal consideration, particularly regarding PM2.5, comprising minute particles originating from diverse sources such as combustion processes, industrial operations, and natural phenomena like wildfires and dust storms. PM2.5 exhibit a range of chemical and physical attributes contingent …

Mathematics In Sri Rudram Of Krishna Yajurveda Taittiriya Samhita, Sundar Ks

Theses and Dissertations

This thesis is an attempt to bring out the concealed mathematical information in the Vedic text “Śri Rudram”, by applying Vedic Numerical Code to digitally decode the mantras in the Śri Rudram which forms part of the fourth canto of the Krishna Yajur Veda Taittiriya Samhitā.

By converting the letters into numbers, it was possible to handle the concealed information in a mathematical and logical way to successfully arrive at a convincing reason for the traditional practice of chanting Śri Rudram eleven times in a particular prescribed manner; as well as finding the close relationship between the number 11 and …

Analysis Of Isotopic Effects On Hydrogen Oxidation, Jacob Carter Wilde

Theses and Dissertations

Tritium generation presents a significant hazard during operation of nuclear reactors and necessitates safety precautions in the case of a combustion incident. Accurate kinetic models should inform these safety precautions, however, reliable tritium data do not exist to generate such models. This work focuses on laminar flame speed, which is an important component of kinetic models. Current estimates based on established kinetic theories and experimental measurements of the other isotopes of hydrogen predict tritium to have a flame speed approximately 70% that of standard protium over a broad range of stoichiometries at one atmosphere in air. These estimates are based …

Small Town Superfund: History Of The Vertac Superfund Site In Jacksonville, Arkansas, Margaret Frances Stone

Theses and Dissertations

The Vertac Superfund site in Jacksonville, Arkansas was a man-made disaster that affected the city in multiple ways socially and economically. It began with the start of World War II, and the construction of the Arkansas Ordnance Plant in 1942. After the end of World War II, Reasor-Hill bought and reused the area for chemical production. While the company created jobs, it also began to create the setting for an environmental disaster, as more chemical companies traded the site around for chemical production, including the components for Agent Orange. It is inextricably connected to the Arkansas Ordnance Plant, the reuse …

Phosphorene As A Chemical Nanosensor For Volatile Organic Compound Vapours - A Dft Outlook, Saravanan S

Theses and Dissertations

Based on the density functional theory framework, the structural stability of phosphorene allotropes and its various nanostructures are ensured. The various allotropes of phosphorene and its nanostructures such as nanosheets, nanoribbon and nanotubes are used as adsorbing materials for various volatile organic compounds (VOCs) such as alcohols, chloroform, amines and aldehydes. The results of adsorption energy are used to confirm physisorption or chemisorption of VOCs on phosphorene. In addition, the charge transfer outcome suggests whether phosphorene is acting as acceptor or donor of electrons upon interaction of target VOCs.

The electronic attributes such as band structure, projected density of states …

The Impact Of Social Emotional Learning And Trauma Informed Care On Teacher Well-Being And Capacity In The Classroom., Kathleen Kelley Michalowski

Theses and Dissertations

Educators and students have encountered significant challenges, including illness and loss within their families due to events such as the COVID-19 pandemic. Traumatic events, like disasters, can greatly disrupt a community's functioning, resulting in widespread losses that surpass the community's ability to cope. Trauma-informed care (TIC) acknowledges that individuals are likely to have a history of trauma and aims to respond appropriately to minimize the likelihood of further trauma. By implementing trauma-sensitive routines and promoting social-emotional learning (SEL) for both students and educators, we can offer them more opportunities for success and emotional growth. It's important to recognize that educators' …

Analysis Of Networks Using Hypergraph Centrality Measures And Other Properties, Sathyanarayanan G

Theses and Dissertations

Network analysis explores the connections between nodes and evaluates their characteristics across diverse fields such as biological, chemical, social networks and so on. Identifying key nodes within a network is crucial for grasping how information spreads, which has significant applications across multiple fields. This includes studying disease transmission, managing rumours, understanding social leadership, enhancing viral marketing strategies, and monitoring public opinion. Influential nodes play a pivotal role in effectively distributing information throughout the network. The centrality measures are paramount in network analysis that uses various metrics to evaluate the importance of the node. The centrality predicts the characteristics and significance …

Incorporating Diverse Multimodal Texts Within A Seventh Grade Language Arts Classroom To Increase Comprehension Accessibility And Improve Engagement, Kaitlin Maher

Theses and Dissertations

This thesis examines if diverse, multimodal texts have an effect upon student engagement while increasing comprehension for students with varied learning styles. Applicable theories that gave direction to this research study were Multiliteracies Pedagogy, Culturally Responsive Teaching, Funds of Knowledge, and Constructivism. Throughout the unit’s duration, students were instructed with various types of multimodal texts that included song, video, graphic novels, and performance while also working with modern authentic, diverse traditional texts. Students were also given a choice of mode in how to respond and demonstrate understanding. The qualitative research study analyzed data sources such as student surveys; my teacher …

What’S Mine Is Yours: Managing Student Loans Within Different Gender Couples, Samantha Leigh Moser

Theses and Dissertations

In the United States, borrowing student loans from the federal government or private market to attend college has become increasingly common. Roughly one in eight Americans has student loans (Looney, Wessel, & Yilla 2020). Reports on federal student loans indicate that roughly 1.6 billion dollars was outstanding in May of 2022 (Hanson 2022b). Additionally, about 43.4 million borrowers each owe an estimated $37,014 in federal education loans (Hanson 2022a). Privately, as of July 2023, $131 billion dollars was outstanding for education loans.

Sociologists have begun researching the consequences of student loan debt on borrowers and their families. Consequences of student …

Examining The Experience Of Race-Related Stress For Black K-12 Educators, Tiffany A. Thompson

Theses and Dissertations

This study presents an action research investigation into the lived experience of race-related stress among Black K-12 educators. The study was motivated by the recognition that Black educators working in White settings are suffering from racerelated stress. A qualitative phenomenological case study design was employed to investigate the race-related stress of five female Black K-12 educators working in White school settings across several states. I used open coding to collect data from interviews, community of practice transcripts, participant reflections, and observational field notes were analyzed. The findings of the study reveal that Black educators experience racerelated stress while working in …

Beyond #Blacklivesmatter Through An Understanding Of Intersectionality And Ethical Leadership: A Critical Autoethnography Of A Black Female Graduate Student Living With Multiple Hidden Dis/Abilities, Shariese Katrell

Theses and Dissertations

There can be numerous questions to be asked concerning the perspective of a Black female graduate student at a predominately White institution who lives with multiple hidden dis/Abilities (Gillborn, 2015). This critical autoethnography can help discover and uncover new issues and establish transformational changes that could expand knowledge and research surrounding the critical analysis of intersectionality and Disability Studies and Critical Race Theory from an/abled feminist approach. Transformative politics can be identified in this study, which examines socialism and the systematic structures and power within academia at the graduate level (Trevino et al., 2008). The issues of Black disability feminism, …

Informatics-Based Discovery Of New Natural Products, Their Biosynthesis, And Their Biological Roles, Ethan Older

Theses and Dissertations

In this work, genome mining and biosynthetic knowledge are applied for the discovery of new natural products, their biosynthetic pathways, and their promising biological activities and roles through the development of two unique new informatics-based approaches.

In chapter one, an overview of microbial natural product biological functions and biosynthesis is provided. The use of bioinformatics leveraging microbial natural product biosynthetic knowledge is also introduced. This chapter highlights the importance and need for developing innovative approaches to accessing microbial natural products, a vastly untapped source of new molecules with promising biological activities.

In chapter two, a correlational network linking the gene-encoded …

Diversification And Evolution Of Hawaiian Megalagrion Damselflies (Pinapinao, Odonata: Coenagrionidae), Robert K. Hadfield

Theses and Dissertations

The Megalagrion damselflies of HawaiÊ»i present a valuable study system for understanding the impacts of geology on evolutionary processes. Despite their significance, our understanding of the temporal, geographic, and phylogenetic origins of these damselflies remains incomplete. Prior phylogenetic studies have proposed adaptive ecological and morphological progressions, but evaluating these hypotheses relies on a sound understanding of phylogenetic relationships within the genus. Previous phylogenetic analyses have produced conflicting topologies. To resolve these uncertainties, we performed phylogenetic analyses including divergence time estimation with 90 nuclear loci (>50 kbp) and 2 mitochondrial loci (>1000 bp), sampling representatives from each genus within …

Evaluation Of A Statewide Suicide Awareness And Prevention Program, Darien Collins

Theses and Dissertations

Mental health challenges are prevalent among young people in South Carolina, with suicide being a leading cause of death for individuals aged 10 to 24. Ending the Silence (ETS) serves as a gatekeeper training to engage students, school staff, families, and community members in conversations surrounding mental health challenges and suicide awareness. The University of South Carolina School Behavioral Health Team (SBHT), led by Dr. Mark Weist, with funding from the South Carolina (SC) Blue Cross Blue Shield Foundation (BCBS), worked with the South Carolina National Alliance on Mental Illness (NAMI) on a three-year evaluation of their ETS program. Results …

Object Classification, Detection And Tracking In Challenging Underwater Environment, Md Modasshir

Theses and Dissertations

The main contributions of this thesis is the applicability and architectural designs of deep learning algorithms in underwater imagery. In recent times, deep learning techniques for object classification and detection have achieved exceptional levels of accuracy that surpass human capabilities. However, the effectiveness of these techniques in underwater environments has not been thoroughly researched. This thesis delves into various research areas related to underwater environments, such as object classification, detection, semantic segmentation, pose regression, and semi-supervised retraining of detection models.

The first part of the thesis studies image classification and detection. Image classification is a fundamental process that involves assigning …

(Re)Imagining Decolonial Cookbooks After Deforestation, Kamran Shams

Theses and Dissertations

Food, like most else, is fundamentally changed by colonization. It is not just the aftermath of colonization, the settlement, that changes food—it is the act of colonial infiltrating itself. Such is the case made by Fernando Ismael Quiñones Valdivia in “Colonial Imaginations: Solitude in the Cartas y Relaciones of Hernán Cortés”—though not for food but for colonized societies broadly. More specifically, he contends that a new epistemological possibility arises when colonizer regards land as an object to be conquered, which precedes the epistemological articulation of subject/object divide. His article supplies a framework for thinking about coloniality so that a close …

Classifying Floor Accelerations For Gait Estimation And Detection, Jean Michel Franco Lozada

Theses and Dissertations

Structural vibrations are traditionally used to learn about structural systems, such as determining the dynamic characteristics of a structure and evaluating its structural performance under certain dynamic loads. Recently, researchers have proposed the use of structural vibrations to know more about the occupants of the structure in addition to the structure itself. One example of such would be to determine when a person falls, or to identify the location of a person walking in a building. Using structural vibrations to study occupants can be directly applicable to many fields, ranging from healthcare to security applications. One powerful use of structural …

A Comprehensive Review And Meta-Analysis Of Breast Cancer Gene Expression Data: Understanding The Molecular Complexity Of A Silent Epidemic, Ifeanyichukwu O. Nwosu

Theses and Dissertations

Breast cancer is the most frequently diagnosed cancer type and the leading cause of cancer death; it accounts for 23% of total cases and 14% of deaths, with over 2 million new cases diagnosed and 600,000 deaths in 2020. This is a huge public health burden. Traditionally, clinical subtypes of breast cancer are defined based on a patient's immunohistochemistry profile. These profiles are determined by the combined expression status of three receptors: estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. It has also been observed that women of African descent, more commonly present with ER, PR and …

A Formative Process Evaluation Of Social Care Programming In A Health Care System Serving A Predominantly Rural State, Samuel Bethel

Theses and Dissertations

Health and social care continue to integrate, but relatively little is known about how social care is designed, implemented, and maintained across the health care continuum. This is especially true for health systems serving rural and under-resourced communities. To fill these gaps, this dissertation project applied formative process evaluation methods to a single case study of the largest health care system serving a predominantly rural state and its integrated social care programming. Data were collected from in-depth, semi-structured interviews following a purposeful and snowball sampling method among key informants for the design, implementation, and maintenance of social care programming as …