Digital Commons Network^™

Discrimination, Victimization, And Suicidality In The Lgbtq Population: The Role Of Psychological Pain And Perceived Connectedness, Amanda L. Peterson

USF Tampa Graduate Theses and Dissertations

Individuals who identify as lesbian, gay, bisexual, transgender, or queer (LGBTQ) are at a higher risk for suicide compared to the general population, but little is known about why this is. Many LGBTQ individuals face some form of discrimination or victimization in their lifetime, and some evidence suggests these experiences may contribute to this group’s higher suicide risk. Unfortunately, research has only examined the impact of direct discrimination/victimization on suicidality and has neglected to examine how ambient discrimination/victimization relates to suicidality. Additionally, although some links exist between discrimination, victimization, and suicide, the mechanisms by which these are related are unknown. …

A Culture/Climate Examination Of Autonomous Vehicle Technology In The United States, James J. Mennie

USF Tampa Graduate Theses and Dissertations

Autonomous Vehicle are coming. But mass adoption is at least ten years away according to consensus compiled from interviews conducted with industry thought lenders. Questions remain as to what technology those vehicles will contain as there is no universal platform for autonomous vehicle technology, since manufacturers, hardware and software companies are developing their own proprietary products. A/V technology is expected to improve productivity, and provide a plethora of societal benefits, but while we await the closure of the time gap the US will lose almost 40,000 citizens each year with traffic fatalities.

Connected vehicle technology, which is currently completing pilot …

The Role Of The Soldier In Civilian Life: Personal And Social Concerns That Influence Reintegration Processes, Matthew J. Ahlfs

USF Tampa Graduate Theses and Dissertations

The intent and direction of this thesis is to recognize personal and social concerns that influence soldiers’ reintegration process. The missing element in current literature is capturing the soldiers’ lived experiences, ideas, perspective and knowledge of what it truly means to be a soldier and having to reintegrate back into the civilian life after being submerged the military culture for an extended period of time. One of the vital concerns to the soldiers is how civilians, specifically the community, politicians, scholars and mental health providers, are not necessary fully aware nor do they recognize the influential impacts of the experiences …

Mechanisms Of S1p-Induced Endothelial Barrier Enhancement, Natascha Guimarães Alves

USF Tampa Graduate Theses and Dissertations

Excessive microvascular permeability is a serious complication involved in traumatic injury and inflammatory diseases. Alcohol intoxication can exacerbate the physiological derangements produced by microvascular endothelial barrier dysfunction in such disease conditions. Sphingosine-1-phosphate (S1P) has known endothelial barrier-protective properties, and has been shown to ameliorate microvascular leakage in a model of combined alcohol intoxication and hemorrhagic shock and resuscitation (HSR). However, whether the barrier-protective properties of S1P extend to endothelial cells of the blood-brain barrier (BBB) is unclear. The mechanisms of S1P-induced barrier protection during alcohol intoxication or HSR are also unknown. In the current study, we tested the hypothesis that …

Exploring Young Children’S Digital Composing Practices, Megan D. Cross

USF Tampa Graduate Theses and Dissertations

This study explored the many layers involved in young children’s meaning-making as they digitally compose. Utilizing a multimodal, social semiotics theoretical framework to analyze children’s digital compositions using a composing app, this study was designed around one research question: What is the nature of three and four-year-old children’s multimodal meaning making while using a composing app? The qualitative study involved four focal participants from a three- and four-year-old classroom, who attended an inquiry-based lab school in the southeastern United States.

The data were collected over a period of eight weeks, where the children were invited to tell their stories using …

High-Precision Lead Isotope Analysis On Modern Populations To Determine Geolocation Reliability, Gennifer M. Goad

USF Tampa Graduate Theses and Dissertations

Forensic anthropologists increasingly use chemical isotope analysis in the investigation of unidentified human remains, as biochemical georeferencing continually improves with the development of modern reference data of known origins. Isotope variations in trace elements such as strontium (Sr) and lead (Pb) in human teeth are some of the most useful indicators of past domicile in archaeological research and thus have high potential for modern, forensic applications. In this study, high-precision lead isotope analysis was conducted on 63 modern human teeth, which were previously analyzed for strontium isotopes. The results present new lead isotope data for the following countries: United States …

The Performance Of Memorialization: Politics Of Memory And Memory-Making At The Arthur G. Dozier School For Boys, Kaniqua Robinson

USF Tampa Graduate Theses and Dissertations

My study examines how religion operates as a form of social control in the politics of memory and memory making in the case of the Arthur G. Dozier School for Boys (1900-2011), a state reform school in Marianna, Florida. Collective memory making is a dynamic process that reflects the social, economic, and political tensions of the present. It is a process most evident during circumstances of reconciliation following conflict, violence, or cases of turmoil resulting in death and in conflicting memories of the experience. Emergence of a dominant narrative about the tragedy or traumatizing event and subjugation of conflicting stories …

Physical Electronic Properties Of Self-Assembled 2d And 3d Surface Mounted Metal-Organic Frameworks, Radwan Elzein

USF Tampa Graduate Theses and Dissertations

Metal-organic frameworks stand at the frontiers of molecular electronic research because they combine desirable physical properties of organic and inorganic components. They are crystalline porous solids constructed by inorganic nodes coordinated to organic ligands to form 1D, 2D, or 3D structures. They possess unique characteristics such as ultrahigh surface area crystal lattices up to 10000 m² g^-1, and tunable nanoporous sizes ranging from 0.2 to 50 nm. Their unprecedented structural diversity and flexibility beyond solid state materials can lead to unique properties such as tailorable electronic and ionic conductivity which can serve as interesting platforms for a …

The Impact Of Digital Marketing Decisions On Market Outcomes In Residential Real Estate, Denise Hunter Gravatt

USF Tampa Graduate Theses and Dissertations

In the competitive and fast-paced industry of residential real estate, digital marketing strategies must effectively meet the information needs and demands of the industry’s three key stakeholders: buyers, sellers, and agents. Digital house hunting is the predominant search strategy for prospective homebuyers who scour the Internet looking for homes to purchase. Property sellers and real estate professionals, whose shared end-goal is to transact a successful sale, must discern which digital marketing choices are optimal for marketing for-sale properties online in the digital channels where buyers are searching.

A 2008 settlement agreement between the Department of Justice and the National Association …

Numerical Modeling Of Concrete Flow In Drilled Shaft, Jesudoss Asirvatham Jeyaraj

USF Tampa Graduate Theses and Dissertations

Drilled shafts are cylindrical, cast-in-place concrete deep foundation elements. Their construction involves drilled excavation of soil or rock using large diameter augers, and placement of the necessary reinforcing steel in the excavation followed by concreting. Where a high water table is encountered, drilling slurry is used to support the excavation walls and concreting is tremie-placed. Even though the history of drilled shaft construction goes back to the 1950s, the occurrence of anomalies persists in the form of soil inclusions, reduction in shaft cross-sectional area and exposure of reinforcement. One of the main reasons for the anomalies is attributed to the …

The Relationship Between Ambient Lighting Color And Hotel Bar Customer Purchase Behavior And Satisfaction, Kunal Shah

USF Tampa Graduate Theses and Dissertations

Increasingly competitive markets lead brand managers to search for new methods to improve customer satisfaction, increase revenue, and promote customer loyalty. Sensory marketing has the potential to meet those objectives. Sensory marketing programs are designed to engage consumers’ senses and affect perceptions, judgments, and behaviors. Ambient light color is an environmental variable with the potential to influence the customer experience in lodging industry sensory marketing programs. Contrast theory and disconfirmation of expectations served as the theoretical framework for this study. The purpose of this quantitative comparative study was to examine the relationships between ambient light color, consumer spending, and perceptions …

Sorbent Enrichment Performance Of Aromatic Compounds From Diluted Liquid Solution, Le Meng

USF Tampa Graduate Theses and Dissertations

Sorbent enrichment is treated as the extend sample preparing method from liquid extraction. The theories of liquid extraction also extend to sorbent enrichment, which is based on the distribution equilibrium. With the development of advanced materials, sorbents have been improved dramatically in the past twenty years. Nowadays, more and more enrichment performance cannot be explained from the angle of distribution model.

Herein, the sorption model is emphasized in this study. As the majority exist, aromatic compounds are the focused class of analytes. This study analyzed the sorption from two factors, the interaction between adsorbate and sorbent from their aromaticity, and …

Actinomycin D And Telmisartan Combination Therapy Targets Lung Cancer Stem Cells, Ryan Green

USF Tampa Graduate Theses and Dissertations

The failure of lung cancer treatments has been attributed partly to the development of drug resistance, however the underlying cellular and molecular mechanisms are poorly understood. It has been suggested that a very small group of specific cells within the heterogeneous tumors, cancer initiating stem cells (CSC), develop resistance to treatment, survive and later initiate the growth of new tumors. Due to their pivotal role in maintenance and relapse of tumors following the acquisition of drug resistance, we reasoned that novel drugs targeting cancer cells and CSC might provide the most effective treatments, if not a cure. To this end, …

Learning In The Margins: The Educational Experiences Of An African American Male With Disabilities, Aisha Holmes

USF Tampa Graduate Theses and Dissertations

African American males with disabilities meet challenges in K-12 public education and higher education. Educational practices often focus on a deficit interpretation of the abilities of African American males with disabilities. Educational stakeholders who do not reflect their layered identities of race, gender, ability, and socioeconomic status often make educational decisions for this student population. The purpose of this study is to include in the educational conversations the voice of an African American male with disabilities who experienced K-12 public education and higher education. Using narrative inquiry and analyzed through the lens of DisCrit, findings from the study revealed two …

An Examination Of The Progressive And Regressive Factors That Business Owners Consider When Choosing Whether Or Not To Implement An Exit Strategy, David C. Pickard

USF Tampa Graduate Theses and Dissertations

This purpose of this dissertation is to examine the progressive and regressive factors that affect a small business owner’s decision to implement an exit strategy. An exit strategy can be defined as an entrepreneur's strategic plan to sell his or her investment in a company he or she has controlling interest in. An exit strategy gives a business owner a way to reduce or eliminate his or her stake in the business and, if the business is successful, make a substantial profit. Exiting a business is a complicated process which includes among other things, the evaluation, preparation, marketing, and ultimate …

Vulnerability And Power: Exploring The Confluence Of Politics And Climate Change In Cortez, Florida, Justin P. Winn

USF Tampa Graduate Theses and Dissertations

This thesis describes how politics shape vulnerability to climate change at the local level, based on an ethnography in Cortez, Florida. Focusing on a “traditional” commercial fishing village on the Florida Gulf Coast, my research indicates that such vulnerabilities are created at multiple scales of the nexus between governance and commerce. Moreover, a key finding is that, as a community closely linked to the health of local environments, the village in Cortez is largely organized to protect their commercial industry from regional economic overdevelopment; not in recognition of its role in contributing to global climate change, but because such overdevelopment …

Mirror Images: Penelope Umbrico’S Mirrors (From Home Décor Catalogs And Websites), Jeanie Ambrosio

USF Tampa Graduate Theses and Dissertations

As the artwork’s title suggests, Penelope Umbrico’s "Mirrors (from Home Décor Catalogs and Websites)" (2001-2011), are photographs of mirrors that Umbrico has appropriated from print and web based home décor advertisements like those from Pottery Barn or West Elm. The mirrors in these advertisements reflect the photo shoot constructed for the ad, often showing plants or light filled windows empty of people. To print the "Mirrors," Umbrico first applies a layer of white-out to everything in the advertisement except for the mirror and then scans the home décor catalog. In the case of the web-based portion of the series, she …

One University’S Response To Sections 504 And 508 Of The Rehabilitation Act: A Descriptive Case Study Of Policy Design, Kimberly F. Carter

USF Tampa Graduate Theses and Dissertations

Pioneering legislation such as Sections 504 and 508 of the Rehabilitation Act of 1973, the Americans with Disabilities Act of 1990, the Individuals with Disabilities Education Act of 1997, and the Assistive Technology Act of 1998 have increased attention to the needs of individuals with disabilities. These regulations require that public programs and services are accessible to people with disabilities (Griffin, 2004).

This descriptive case study examines policy design to conform with Sections 504 and 508 of the Rehabilitation Act of 1973 at a public research university through the lens of Bolman and Deal’s four frames of organizational analysis. These …

Moffitt Cancer Center: Leadership, Culture And Transformation, W. James Wilson

USF Tampa Graduate Theses and Dissertations

Purpose – The purpose of this project was to extrapolate knowledge of successful leadership practices, determine what led to and nurtured what became an integrated organizational culture and identify any decisions and/or transformational events that re-defined Moffitt Cancer Center’s (MCC) course or helped propel it to levels far beyond what was originally imagined. The aims of this study were discovery of the foundational factors and events that significantly impacted the creation, growth and evolution of the center, making MCC an institution of transformational change that had achieved state and national prominence.

Design – This was an exploratory study guided by …

Investigating The Roles Of Fucosylation And Calcium Signaling In Melanoma Invasion, Tyler S. Keeley

USF Tampa Graduate Theses and Dissertations

Melanoma is the deadliest form of skin cancer. Prognosis for early stage melanoma patients is excellent, and surgery is often curative for these patients. However, once patients have presented with invasive disease, the average 5-year survival rate drops significantly from over 90% to between 10 and 15%. Several therapies have been developed to target a commonly mutated oncogene BRAF, or its downstream effectors. Unfortunately, while these treatments show robust initial response, most patients relapse within a year. Moreover, therapy-resistant tumors are often more invasive and metastatic. Therefore, it is important to investigate the molecular mechanisms underlying melanoma invasion and metastasis, …

Wastewater In Context: Systems-Based Approaches To Improving Wastewater Infrastructure Transitions, Christine Prouty

USF Tampa Graduate Theses and Dissertations

Coastal communities and ecosystems around the world are some of those most vulnerable to the impacts of climate change. In particular, the wastewater treatment systems in these areas are on the forefront of the effects of increasing frequency, duration, and intensity associated with extreme weather events. As such, decision making about adopting new wastewater technologies or transitioning to an improved treatment portfolio is an important area of research for coastal communities because they are critically linked to the health of the nearby aquatic ecosystems (i.e. tourism, fishing, cultural heritage, climate protection).

The decision making process about technology adoption and transitions …

Analysis Of Printed Electronic Adhesion, Electrical, Mechanical, And Thermal Performance For Resilient Hybrid Electronics, Clayton Neff

USF Tampa Graduate Theses and Dissertations

Today’s state of the art additive manufacturing (AM) systems have the ability to fabricate multi-material devices with novel capabilities that were previously constrained by traditional manufacturing. AM machines fuse or deposit material in an additive fashion only where necessary, thus unlocking advantages of mass customization, no part-specific tooling, near arbitrary geometric complexity, and reduced lead times and cost. The combination of conductive ink micro-dispensing AM process with hybrid manufacturing processes including: laser machining, CNC machining, and pick & place enables the fabrication of printed electronics. Printed electronics exploit the integration of AM with hybrid processes and allow embedded and/or conformal …

Investigation Of Anemarrhena Asphodeloides And Its Constituent Timosaponin-Aiii As Novel, Naturally Derived Adjunctive Therapeutics For The Treatment Of Advanced Pancreatic Cancer, Catherine B. Marelia

USF Tampa Graduate Theses and Dissertations

Pancreatic adenocarcinoma (PDAC) remains one of the most lethal cancer types, with 92% of patients succumbing to the disease within five years. One of the hallmarks of this intractable disease is its nearly universal resistance to chemotherapeutic intervention. The deoxycytidine analog gemcitabine persists as the primary chemotherapy for advanced PDAC patients despite little improvement to its toxicity and tenuous efficacy over the past two decades. Plant-based drug discovery has a longstanding history and has led to some of the most significant drugs of the modern era, including some chemotherapeutic agents like paclitaxel and camptothecin. Our study analyzed the potential inhibitory …

Students’ Opportunity To Learn Surface Area And Volume In Middle Grades Mathematics Textbooks, Sofia Hatziminadakis

USF Tampa Graduate Theses and Dissertations

I conducted a content analysis to examine the treatment of the surface area and volume concepts within four published middle-grades mathematics textbook series. In particular, I examined the treatment of the surface area and volume concepts in terms of the location of surface area and volume lessons in the textbook and the number of pages and lessons devoted to these concepts. I also investigated the sequence of the instructional blocks of surface area and volume lessons. In addition, I evaluated the tasks included in these lessons in regards to the performance expectations of students, the types of visual representations of …

Essential Leadership Skills For Frontline Managers In A Multicultural Organization, Janelle Ward

USF Tampa Graduate Theses and Dissertations

This exploratory research examined the leadership skills essential for frontline managers to be effective in a multicultural organization. The purpose was to inform company management of vital skills to include in a new leadership development program (LDP) initiative. The literature review revealed that a list of commonly accepted leadership skills does not exist. This research gap is even greater for multicultural environments. In addition to developing a list of skills, I assessed the impact of situational factors, including the scenario and demographics of the people involved, on perceived critical leadership skills.

I conducted a survey within the company of interest …

The Role Of Migration-Related Stress In Depression Among Haitian Immigrants In Florida: A Mixed Method Sequential Explanatory Approach, Dany Amanda C. Fanfan

USF Tampa Graduate Theses and Dissertations

Recognizing, appropriately treating depression, and meeting the mental health needs of the growing number of Haitian immigrants in the United States (US), continue to pose a challenge because of differences in culture, beliefs, idiom of distress, expression of depression as well as specific stressors associated with the migration process. Previous studies, while limited, document high levels of depression among Haitian migrants, and postulated that migration-related stress (MRS) may play a significant role. Aspects of the migration process, more specifically stressors endured during settlement in the US may negatively precipitate the development of depression.

This study used a mixed method sequential …

The Spectacle Of The Bomb: Rhetorical Analysis Of Risk Of The Nevada Test Site In Technical Communication, Popular Press, And Pop Culture, Tiffany Wilgar

USF Tampa Graduate Theses and Dissertations

This dissertation is a rhetorical analysis of presentations of risk across three different sites of inquiry: technical communication, the popular press, and pop culture. This dissertation focuses on The Nevada Test Site (NTS), a nuclear testing facility near Las Vegas, Nevada, and analyzes presentations of risk in language of the technical report following an NTS accident in December 1970. Project Baneberry, a routine underground nuclear test, became the accident known as "The Baneberry Vent" when it cracked through the earth and vented into the atmosphere, exposing NTS employees and nearby communities to radiation. Presentations of risk in the technical document …

A Secure Computing Platform For Building Automation Using Microkernel-Based Operating Systems, Xiaolong Wang

USF Tampa Graduate Theses and Dissertations

Building Automation System (BAS) is a complex distributed control system that is widely deployed in commercial, residential, industrial buildings for monitoring and controlling mechanical/electrical equipment. Through increasing industrial and technological advances, the control components of BAS are becoming increasingly interconnected. Along with potential benefits, integration also introduces new attack vectors, which tremendous increases safety and security risks in the control system. Historically, BAS lacks security design and relies on physical isolation and "security through obscurity". These methods are unacceptable with the "smart building" technologies. The industry needs to reevaluate the safety and security of the current building automation system, and …

The Icarus Floating Membrane Photobioreactor For Microalgae Cultivation In Wastewater: Advancing Technology From Lab To Field Prototype, Melanie Pickett

USF Tampa Graduate Theses and Dissertations

The ICARUS membrane photobioreactor, conceptualized and preliminarily tested at the University of South Florida, provides a viable platform for algae cultivation using wastewater as a growth medium. Progression of the technology is tracked using NASA’s Technology Readiness Level scale, and is herein described. Through the work described in this manuscript, the technology has evolved from TRL 3 to TRL 5. Completing the suggested future work will readily move the technology to TRL 6 and beyond.

The first study investigated the co-location of algal cultivation with wastewater treatment. This coupling provides a steady source of water and nutrients for algal growth. …

Validation Of A New Concept For Measuring Respirable Dusts, Xiao Liu

USF Tampa Graduate Theses and Dissertations

Sampling of airborne dust in industry is influenced by the potential health effects associated with human exposure. Health effects depend on mass concentration and particle size which influences the site of pulmonary deposition. Occupational diseases tend to be associated with dust deposition in specific regions of the respiratory tract. The ACGIH size selective TLVs are expressed in three forms: Inhalable Particulate Matter, Thoracic Particulate Matter, and Respirable Particulate Matter. In pneuomoconioses, the amount of dust deposited in the lungs can be estimated by sampling the respirable fraction. Dose-response relationships are derived by relating the health experience of workers to the …