Digital Commons Network^™

Informing Complexity: The Business Case For Managing Digital Twins Of Complex Process Facilities As A Valuable Asset, William Randell Mcnair

USF Tampa Graduate Theses and Dissertations

The Digital Twins of complex facilities, specifically 3D models created during their design, is a potentially valuable information asset. This three- article dissertation explores the business case for firms in the petrochemical process industry to manage throughout the facility lifecycle. A maturity model is provided to illustrate the stages of digital twin evolution and serves as a tool to help communicate each of the five levels of digital twin maturity achievable in various use cases. An industry analysis reviews existing literature and proposes a model to assess informing or insight value of digital twins from three perspectives. Next, an empirical …

Restarting Plural Modernity: The Lyrical Tradition Of The Hometown In Kaili Blues, Huadong Fan

USF Tampa Graduate Theses and Dissertations

The dichotomous paradigm constituted by the realist tradition of Chinese cinema has become the epic and inertial discourse for understanding Chinese modernity. However, I argue that some new filmmakers after the sixth generation of directors have used the narrative and aesthetics of the hometown to change this dominant logic of Chinese modernity. The revolutions and wars of the twentieth century transformed the hometown from a relatively stable agrarian civilization to a modern society in violent turmoil. Recent hometown films are no longer satisfied with this realist aesthetic duality and strive for a pluralistic discourse of Chinese modernity, releasing it from …

Computer Simulation For Continuous Centrifugation Of High-Density Cell Cultures, Hironori Tomizawa

USF Tampa Graduate Theses and Dissertations

Perfusion bioreactors are used for cell production for cell therapies. The system uses cell separation devices such as centrifuge to facilitate cell growth by separating cells and spent media and allows constant media replacement. However, current cell separation technologies can increase shear stress, are generally not continuous processes, and are not as efficient as desired. These limit the amount of media replaced per unit time. Therefore, there is a need for a new system or a method that operates continuously to minimize cell damage, yield high cell concentration, and exchange media effectively. A set of research questions was formulated: (1) …

Cultural Values As A Moderator Of The Emotion Suppression To Strain Relationship: A Comparison Of Two Dominant Theoretical Mechanisms, Roxanne C. Lawrence

USF Tampa Graduate Theses and Dissertations

Although the relationship between emotion regulation and deleterious health outcomes is a robust finding in Western cultures, studies show that this effect is attenuated in non-Western cultures. The present study employed an experience sampling method to examine the mitigating effect of cultural values (i.e., individual-level collectivism) on the relationship between emotion regulation and employee strain (i.e., job satisfaction and anxiety) through the theoretical models of emotional dissonance and resource loss (operationalized as inauthenticity and emotional exhaustion). Using data collected from 182 adults working in the service industry, I ran a multilevel path analysis to test the study’s hypotheses. Results indicated …

Constructing Frameworks For Task-Optimized Visualizations, Ghulam Jilani Abdul Rahim Quadri

USF Tampa Graduate Theses and Dissertations

Visualization is crucial in today’s data-driven world to augment and enhance human understanding and decision-making. Effective visualizations must support accuracy in visual task performance and expressive data communication. Effective visualization design depends on the visual channels used, chart types, or visual tasks. However, design choices and visual judgment are co-related, and effectiveness is not one-dimensional, leading to a significant need to understand the intersection of these factors to create optimized visualizations. Hence, constructing frameworks that consider both design decisions and the task being performed enables optimizing visualization design to maximize efficacy. This dissertation describes experiments, techniques, and user studies to …

Unintended Consequences? Testing The Effects Of Adolescent-Targeted Anti-Vaping Media Upon Adult Smokers, Leslie E. Sawyer

USF Tampa Graduate Theses and Dissertations

A great deal of controversy surrounds e-cigarettes, with some arguing that protection of youth and non-users is paramount and others maintaining that these products are beneficial from a harm reduction perspective for use by adult smokers for switching from combustible cigarettes and for smoking cessation. Opponents of e-cigarettes have allocated tremendous funds toward advertising campaigns aimed at youth deterrence; however, to date, the effects of these ads upon adult smokers have yet to be examined. The current study used a between-subjects experimental design to investigate the effects of an FDA-distributed youth-targeted anti-vaping PSA, “Vaping is an Epidemic,” upon adult smokers …

Employees Breaking Bad With Technology: An Exploratory Analysis Of Human Factors That Drive Cyberspace Insider Threats, Marcus L. Green

USF Tampa Graduate Theses and Dissertations

As implementation of computer systems has continued to grow in business contexts, employee-driven cyberspace infractions have also grown in number. Employee cyberspace behaviors have continued to have detrimental effects on company computer systems. Actions that violate company cybersecurity policies can be either malicious or unmalicious. Solutions, by and large, have been electronic and centered on hardware and software. Those proposing solutions have begun to shift their focus to human risk vulnerabilities.

This study was novel in that its focus was identification of individual, cultural, and technological risk factors that drive cyberspace insider threat activities. Identifying factors that reduce insider threat …

Cellular And Molecular Alterations Associated With Ovarian And Renal Cancer Pathophysiology, Ravneet Kaur Chhabra

USF Tampa Graduate Theses and Dissertations

Elucidating molecular alterations underlying tumor development and chemoresistance are critical to expand our understanding of the disease pathophysiology. This dissertation is focused on analyzing the cellular and molecular alterations associated with LPA-induced chemoresistance in clear cell renal cell carcinoma (ccRCC) cells and chronic iron-induced deregulation of miRNA expression in fallopian tube secretory epithelial cells (FTSECs).

Kidney cancer is one of the ten most common cancers worldwide with <15% survival rate at advanced stage (American Cancer Society). ccRCC is the most common type of kidney cancer and is described as a metabolic disease characterized by deregulated lipid metabolism leading to increased intracellular lipid droplets [9, 10]. The current molecular-targeted treatment strategies involve VEGF/VEGFR and mTOR inhibition [9, 12]. However, there are limitations to these approaches leading to the reduced efficacy and/or increased resistance in ccRCC cells [13, 14]. Therefore, it is important to decipher the factors involved in compromising the chemosensitivity in these cells.

Lysophosphatidic acid (LPA), a bioactive phospholipid, was previously reported to increase resistance against Sunitinib (VEGFR/PDGFR inhibitor) in ccRCC cells and to increase migration and invasion in various tumors [15-17]. In Chapter 3 of …

Strengthening The Entrepreneurial Support Community, Andrew J. Hafer

USF Tampa Graduate Theses and Dissertations

This study seeks to discover ways of improving the impact and effectiveness of entrepreneurial support organizations (ESOs) in the regional entrepreneurial ecosystem of Tampa Bay, Florida. First, the study establishes a comprehensive catalog (called the “Superset”) of potential support programs that might be offered by ESOs and consumed by entrepreneurs. Through empirical data collection, the programs in the Superset are ranked by entrepreneurs and ESO leaders according to their opinion of perceived value and importance for gaining the competency in said program. The rankings allow a mapping of the regional ecosystem to identify gaps, inefficiencies, and improvement opportunities.

The study …

Managing Health Locus Of Control In Patient-Provider Relationships, James Wallace

USF Tampa Graduate Theses and Dissertations

Patient locus of control is a strong determinant of health outcomes, yet health care professionals do not typically address it in care plans. In fact, management of most medical conditions is hindered because the treating physician has little information about the patient’s locus of control. This research addresses the question “How can locus of control be used to enable health care practitioners to improve medical outcomes?”

Research Methodology. Using an engaged scholarship approach incorporating the Elaborated Action Design Research methodology, the research drives the guided, emergent design of a novel protocol and two separate artifacts for management of health locus …

External And Internal Factors Of Sports Sponsorship Selling Cycles In North American Professional Sports, Dan Kaufmann

USF Tampa Graduate Theses and Dissertations

In sports sponsorship, sellers and management seek to shorten their sales cycles to renew, upsell, and close new business. This research covers what professional sports organizations can do to help shorten the sales process. The study includes an industry analysis, literature review, and a mixed method survey of 212 people within the North American Sports Sponsorship Industry. The surveyed individuals are C-suite sponsorship salespeople and managers. These individuals work in the following professional sports leagues in North America: The National Football League (NFL), National Basketball League (NBA), National Hockey League (NHL), Major League Baseball (MLB), and Major League Soccer (MLS). …

The Is Social Continuance Model: Using Conversational Agents To Support Co-Creation, Naif Alawi

USF Tampa Graduate Theses and Dissertations

With the rise of Agentic IS Artifact and the increasing integration of this technology within organizations, our understanding of the impact of this technology on individuals remains limited. Although IS use literature provides important guidance for organization to increase employees’ willingness to work with new technology implementations, the utilitarian view of prior IS use limits its application in light of the new evolving social interaction between humans and Agentic IS Artifacts. To that end, we contribute to the IS use literature by implementing a social view to understand the impact of Agentic IS Artifacts on an individual’s perception and behavior. …

Water Regulation For Enhancing Soil Quality Using Cactus Mucilage: A Theoretical And Experimental Analysis, Khuloud Alrashdi

USF Tampa Graduate Theses and Dissertations

As water is one of the primary sources of life, it is essential in an endless number of systems and processes to be utilized efficiently in nature and in practical applications. One of these applications includes farming, which depletes a lot of water as the water irrigation systems cover large soil areas. While water is a critical factor in growing crops, a question here stands, can the irrigation process be transformed? This is the overarching goal of my work since it is centered on studying if cactus mucilage, a natural substance, is capable of improving water absorption processes on crops …

Riemann-Hilbert Problems For Nonlocal Reverse-Time Nonlinear Second-Order And Fourth-Order Akns Systems Of Multiple Components And Exact Soliton Solutions, Alle Adjiri

USF Tampa Graduate Theses and Dissertations

We first investigate the solvability of an integrable nonlinear nonlocal reverse-time six-component fourth-order AKNS system generated from a reduced coupled AKNS hierarchy under a reverse-time reduction. Riemann-Hilbert problems will be formulated by using the associated matrix spectral problems, and exact soliton solutions will be derived from the reflectionless case corresponding to an identity jump matrix. Secondly, we present the inverse scattering transform for solving a class of eight-component AKNS integrable equations obtained by a specific reduction associated with a block matrix spectral problem. The inverse scattering transform based on Riemann-Hilbert problems is presented along with a jump matrix taken to …

Learning From The Seed: Illuminating Black Girlhood In Sustainable Living Paradigms, Toni Powell Powell Young

USF Tampa Graduate Theses and Dissertations

The contemporary image of sustainable living presents a culturally narrow view of its participants and the manner of engaging in sustainable living paradigms. Through crystallization (Ellingson, 2009) I present a mixed methods approach that emphasizes participant observation, visual, mediated, and discursive analyses, as well as demonstrates the efficacy of Culture Centered Black Feminist Auto/Ethnography. This project seeks to highlight and place within historical context, the ways in which African American girls, who are largely left out of the prevailing image of sustainability, perform and articulate sustainability for themselves, in their homes, and throughout their home communities.

In their everyday lives, …

Bad Bunny’S Purplewashing As Gender Violence In Reggaeton: A Feminist Analysis Of Solo De Mi And Yo Perreo Sola, Dairíne Hoban

USF Tampa Graduate Theses and Dissertations

Bad Bunny has skyrocketed to fame in the past few years, gaining worldwide recognition as one of the best reggaetoneros of his time. His self-promoted image as an ally to women’s movements and the Queer community has garnered him the recognition of being a role model for youth and as an anomaly in the misogynistic genre of reggaeton. However, few have looked beyond the assertion of allyship to see if his work truly does support women and anti-gender violence ideology. While scholarship on reggaeton has well documented the prevalence of gender violence in the lyrics, videos and overall culture of …

Multidimensional Well-Being Across Time Scales In Caregivers And Non-Caregivers, Victoria R. Marino

USF Tampa Graduate Theses and Dissertations

Contemporary research on informal caregiving recognizes that, though stressful, providing care for a disabled family member or friend can bring psychological benefits, such as increased meaning or purpose in life, growing closer to the care recipient, and learning new skills. Scales of eudaimonic well-being (EWB – e.g., meaning in life, personal growth, and positive relations with others) developed in positive psychology literature offer an innovative solution to incorporating caregiving benefits into between-groups comparisons of caregiver and non-caregiver well-being, which have typically focused on cross-sectional assessment of hedonic well-being (HWB – i.e., negative/positive affect and life satisfaction). Moreover, using daily using …

Healthcare Data Analytics For Predicting Health Outcomes Of Older Adults And Emergency Responses Of Aged Care Facilities, Nazmus Sakib

USF Tampa Graduate Theses and Dissertations

The United States (US) is experiencing rapid growth in its older adult population, who may suffer from multiple chronic diseases, injuries, and impairments. To meet with the excess demand without compromising the quality of care for older adults, the current aged care systems, such as nursing home systems, will face unprecedented challenges of healthcare resource shortage with rising costs. Accurate prediction of health outcomes of individual older adults will facilitate the aged care professionals to better prioritize healthcare resources for the most at-risk individuals with more focused care and provide more proactive and individualized treatment and care delivery. In addition, …

Predictors Of Goal Attainment Among High School Students In Accelerated Academic Curricula Receiving School-Based Motivational Interviewing Intervention, Camille E. Hanks

USF Tampa Graduate Theses and Dissertations

Students enrolled in Advanced Placement (AP) courses and International Baccalaureate (IB) programs represent a unique group of adolescents given the high demands of their rigorous coursework and the elevated stress they experience compared to peers in the general education (Suldo & Shaunessy-Dedrick, 2013). These students are often missed in traditional screening procedures that tend to identify students struggling academically or exhibiting disruptive behaviors. Fortunately, Shaunessy-Dedrick and colleagues (2021) developed a comprehensive school-based intervention program, including universal (Tier 1) and selective (Tier 2) components, which aims to support the well-being of AP/IB students. The Tier 2 component of this program (i.e., …

Biochar Amended Bioretention Systems For Nutrient And Fecal Indicator Bacteria Removal From Urban And Agricultural Runoffs, Md Yeasir Arif Rahman

USF Tampa Graduate Theses and Dissertations

Excessive nitrogen and fecal indicator bacteria (FIB) in stormwater runoff from urban areas or dairy farm operations impair water bodies resulting algal blooms, gastrointestinal illness, and economic losses. Recent advancements in stormwater management, including low impact development (LID) techniques, have provided engineers with a variety of tools to use in place of traditional catch basins and retention ponds. One promising LID technology for runoff management is bioretention, which consists of a shallow depression containing engineered porous media and vegetation. Prior studies have shown that modified bioretention systems that include an internal water storage zone (IWSZ) to promote denitrification can improve …

School Nurses’ Attitudes And Perceptions Toward Supporting Students With Chronic Health Conditions In An Ecological System, Destiny L. Singleton

USF Tampa Graduate Theses and Dissertations

Chronic health conditions impact one in four school-aged youth (Van Cleave, Gortmaker, & Perrin, 2010). Supplemental to the medical challenges that students with chronic health conditions face, they also are at risk for a variety of academic, behavioral, and social-emotional adversities. Using an ecological approach for addressing the diverse needs of students with chronic health conditions has been deemed valuable due to the array of key stakeholders, institutions, policies, and cultural norms that impact the development of the pediatric population. A key stakeholder in supporting the functioning of school-aged children with chronic illnesses is the school nurse. School nurses’ skills …

Exploring Adult Attachment In Intimate Relationships Among Women Who Were Exposed To Intimate Partner Violence In Childhood: A Convergent Mixed Methods Approach, Ngozichukwuka C. Agu

USF Tampa Graduate Theses and Dissertations

Background: Trauma in childhood including exposure to intimate partner violence is associated with a myriad of negative outcomes in physical health, mental health, academic performance, and relationship domains. Adult attachment in intimate relationships is a key factor that determines several health outcomes as well as healthy relationships. This study explored: 1) the perceptions of childhood exposures to intimate partner violence and how these exposures could have impacted adult attachment; 2) the perceptions of relationship factors that play a role in the development of adult attachment in intimate relationships; and 3) the behavioral and socioenvironmental influences that frame perceptions of adult …

Poetic Justice: A Counter-Narrative Of The First Black Male Principal In A Coastal Community Since The Desegregation Era, Adrian Anthony

USF Tampa Graduate Theses and Dissertations

Entering a new school as a new principal, and the first black male administrator in a community since the desegregation era, was fraught with challenges that have a universal cadence. Additionally, the three-year school turnaround initiative I entered had its own unique barriers. My voice quivers, my head sinks low, my eyes averted but this no more, for I uphold the mantle of men of bronze, for I will lead within this challenge and my voice will go on (Anthony, 2020). Using critical race theory as a framework with counter-storytelling I examined leadership and different forms of racial and gender …

Targeting Modern Pathogens With Rational Drug Design, Michael Dominic Sacco

USF Tampa Graduate Theses and Dissertations

Since the first living organisms appeared on earth, their very existence was dependent on their ability to contend for resources. To this day, organisms are perpetually competing for resources, and in doing so, have evolved highly effective defense mechanisms and systems for propagation. Although invisible to the eye, we live in a world teeming with microbes and viruses. While many are harmless, others cause widespread disease. One of the key niches for these pathogens, particularly bacteria, are health-care facilities. These health-care facilities have a high concentration of immunocompromised patients and rely heavily on antibiotics, which strongly contributes to antibiotic resistance. …

Beyond The Program: A Case Study Evaluating The Learning Transfer Of A Collaborative Online Course Development Program, Christie W. Nicholas

USF Tampa Graduate Theses and Dissertations

The primary purpose of this study was to evaluate a collaborative online course development program, Digital Learning Collaborative, utilizing the first three levels of Kirkpatrick’s training evaluation model. Although there is a growing body of research that supports collaborative models of online course design, there are few studies that evaluate these models and even fewer that consider the potential learning transfer to other teaching contexts.With faculty being increasingly asked to teach in varying and dual modalities, it is necessary to evaluate online course development programs to understand how the skills and practices obtained within them can transfer to other courses …

Development Of A Bipolar Radiofrequency Ablation Device For Renal Denervation, Noel Perez

USF Tampa Graduate Theses and Dissertations

The American Heart Association (AHA) reported in March 2020, hypertension (HT) is a major risk factor for cardiovascular diseases and heart stroke. Resistant hypertension (RH) is a subset of HT and affects 11-16% of hypertensive patients. RH is diagnosed when a patient cannot achieve blood pressure control despite taking three or more medications and is a serious clinical management challenge.

Renal denervation (RD) using radiofrequency (RF) ablation is an accepted form of RH therapy. RD devices are typically delivered through femoral access into the renal artery with the assistance of a standard guided sheath. In the European Union (EU), the …

Evolution Of Targeted Therapy Resistance In Eml4-Alk Positive Non-Small Cell Lung Cancer, Robert Vander Velde

USF Tampa Graduate Theses and Dissertations

Targeted therapies have emerged as potent treatments that lead to the remission of many tumors. However, they rarely cure cancers in advanced, metastatic settings. This is due to the evolution of resistance, which in turn can be ascribed to the survival of small subpopulations of tolerant and/or resistant cells. Here we investigated the evolution of resistance to EML4-ALK inhibitors in non-small cell lung cancer (NSCLC) and demonstrated that resistance evolves gradually, from unique pre-treatment sub-populations, as multiple resistance mechanisms accumulate in a Darwinian fashion. Despite accumulating multiple changes, cells evolved, in parallel, toward similar inhibitor specific phenotypes. Evolving cells have …

Physician Burnout: A Curriculum Design Study, Dian A. Ginsberg

USF Tampa Graduate Theses and Dissertations

The purpose of this study created and evaluated an educational intervention that addressed the remediation of physician burnout on an organizational level. This quality improvement study explores existing programs and applies innovation to improve the depth and scalability of a physician burnout program.

Transcriptomic And Functional Investigation Of Bacterial Biofilm Formation, Brooke R. Nemec

USF Tampa Graduate Theses and Dissertations

Staphylococcus aureus and Acinetobacter baumannii are two highly successful human pathogens, which have adopted very different, but effective survival strategies. The success of S. aureus is attributed to the tight regulation of an arsenal of virulence factors. Conversely, A. baumannii lacks what would be considered traditional virulence factors and, instead, has developed a high tolerance for environmental stress, which allows it to persist in unforgiving environments, including nosocomial settings and the human body. One common characteristic of these two organisms is their proclivity for biofilm formation. Herein, we discuss the diverse mechanisms governing biofilm formation for A. baumannii and S. …

A Comparative Thematic Analysis Of Newspaper Articles In France After The Bataclan And In The United States Of America After Pulse, Simon Rousset

USF Tampa Graduate Theses and Dissertations

This project interrogates unequal power relations that underlie newspaper representation of terrorism and reinforced Orientalism discourse following the 13 November 2015 mass murders in Saint-Denis and Paris, France, and following the 12 June 2016 mass shooting in Orlando, Florida, United States of America (U.S.A.). It was not surprising to bear witness to the ways national media took hold of these major socio-political events. These events, and the stories that have been published about them, are interpreted through the prism of terrorism, moral panic, and Orientalism, in the sense that the media tend to transcribe the shock of the attacks as …