Digital Commons Network^™

Bone Microenvironmental Control Of Skeletal Malignancy, Chen Hao Lo

USF Tampa Graduate Theses and Dissertations

Bone is a common site of metastasis for many solid malignancies. Bone-metastatic cancers pose a significant clinical problem worldwide and is among the main causes for cancer patient morbidity and mortality. Patients with advanced bone-metastatic diseases often present with either osteolytic or osteogenic bone diseases as their cancers progress. These bone pathologies are products of the cancer co-opting the local bone remodeling stroma to yield important growth nutrients and factors. Unfortunately, skeletal metastases remain incurable and are fatal. Identifying and understanding the causal multicellular and molecular interactions underlying skeletal malignancies can yield crucial ideas for targeting and inhibiting disease progression. …

Plastic Pollution In Urban Rivers: Spatial And Temporal Patterns Of Plastic Release And Transport, Charlotte Juliane Haberstroh

USF Tampa Graduate Theses and Dissertations

This dissertation investigates plastic release and transport in urban rivers with a focus on the driving spatial and temporal factors. Plastic is a key pollutant of this century that affects humans and the environment around the world. Rivers are a focal point of release and management, as they concentrate and accumulate plastics from urban watersheds and convey them to the world’s oceans.

This research assessed cross-sectional, longitudinal, and seasonal patterns of plastics in rivers, and evaluated the role of urban pollution and watershed hydrology. A detailed background is provided in the literature review. This work is built on two case …

Success And Sustainability Of Sponsored International Development Programs In Education: A Narrative Inquiry, Sara Beth Leikin

USF Tampa Graduate Theses and Dissertations

In a 2008 working paper published by the U.S. Agency for International Development, the authors lamented that, despite billions of dollars in investment in global education initiatives, access to education had been improved in targeted areas, but the return on investment with regards to learning outcomes was “much less impressive” (Gillies & Jester Quijada, 2008). From 2012-2017, USAID engaged in the Egypt STEM Schools Project (ESSP) along with four partner organizations with the goal of building model science and mathematics public schools that would challenge the educational status quo by providing students with hands-on, constructivist learning and providing an alternative …

Reading And Programming Spintronic Devices For Biomimetic Applications And Fault-Tolerant Memory Design, Kawsher Ahmed Roxy

USF Tampa Graduate Theses and Dissertations

Despite the triumph of conventional computing architectures till today, there emerges a lotof computing problems that are solved poorly by them. The reason behind this are twofold: i) the computing algorithm is incompetent in solving those problems, and ii) non-ideal effects of the traditional device technologies outperform the benets of using them. Hence, extensive research eorts have been put to devise novel algorithms as well as new devices. Among them spintronic devices demonstrate better performance in traditional architectures as well as offers way better solution to a lot of new problems when bundled with unconventional computing algorithms. Apart from being …

Dendriplex - Cyclodextrin Conjugates For Gene Delivery To Retina, Durga Deepak Puro

USF Tampa Graduate Theses and Dissertations

Gene therapy holds promise for treating a wide range of diseases including cancer and several other polygenic and monogenic disorder arising in different organs. Due to its immune privilege nature, eye is an ideal organ for gene therapy,as various visual pathologies arise from gene defect and can lead to partial or complete vision loss. The last decade, several nanoparticles have been developed and tested for their transfection efficiency in vitro and in vivo. Among them, dendrimers with small size, good physicochemical properties and endosomal escape activity have shown high transfection efficiency in various cell lines. In an attempt to further …

Quantifying The Impact Of Chronic Stress On Racial Disparities In Cardiovascular Disease, Nnadozie Emechebe

USF Tampa Graduate Theses and Dissertations

Background: Despite declining mortality in cardiovascular diseases (CVD), racial disparities between non-Hispanic Blacks (NHB) and to non-Hispanic Whites (NHW) persist. Although the prevalence of traditional risk factors of CVD such as hypertension, is higher in NHB compared to NHW, adjusting for this difference does not eliminate the disparity completely. This suggests other factors might explain the persisting disparities. Thus, the purpose of this dissertation is to quantify the impact of chronic stress in explaining the racial disparities in cardiovascular diseases (CVD). This dissertation contains three studies that addressed the following Specific Aims: Specific aims: 1) To create and assess the …

Enhancing Adult Refugees’ Metacognition, Motivation, And Multiliteracies: Metacognitive Instruction Within An E-Learning Environment, Imelda V. Bangun

USF Tampa Graduate Theses and Dissertations

Adult refugees without print literacy are a diverse group. The reasons adult refugees lack print literacy varies widely among individuals. While meeting the needs of these adults is indeed important, instructors who work with these learners are frequently challenged to provide suitable e-learning environments in which these learners can thrive. Accordingly, the present study aimed to achieve four goals. First, it investigated the effectiveness of explicit metacognitive instruction within an e-learning environment in enhancing the motivational profile of adult refugees with limited literacy. Second, it researched the effectiveness of explicit metacognitive instruction accompanied with an e-learning environment in enhancing the …

Self-Perceived Competence Of Senior-Level Student Affairs Professionals, Anh-Kay Pizano

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the self-perceived competence levels of senior-level student affairs professionals. Additionally, the study aimed to learn about the experiences that contributed to the participants’ competence levels. A qualitative study, consisting of semi-structured interviews, was conducted to address the research questions. Common themes emerged from the interviews. When asked to rate themselves based on their competency level, the majority of the participants rated themselves advanced. The participants recounted numerous experiences that led to how they rated their levels of competence. Years of experience in the student affairs profession was most often noted. Other experiences …

Experimental Investigation Of Liquid Height Estimation And Simulation Verification Of Bolt Tension Quantification Using Surface Acoustic Waves, Hani Alhazmi

USF Tampa Graduate Theses and Dissertations

In this dissertation, two separate applications that are related to surface acoustic waves in a solid media are presented. The first study concerns simulating and validating an experimentally study for quantifying the bolt tension in the bolted joints using the surface acoustic wave. The second study experimentally investigates measuring the level of a liquid existing on a solid surface via surface acoustic waves and exploring the effect of liquid existence on the propagation of surface acoustic waves over the solid surface.

Quantifying bolt tension and ensuring that bolts are appropriately tightened for large-scale civil infrastructures are crucial. This study investigates …

Exploring Adult Indigenous Latinxs’ English Language Identity Expressions And Agency: A Malp®-Informed Photovoice Study, Andrea Enikő Lypka

USF Tampa Graduate Theses and Dissertations

Scholars historically emphasized literate learners’ additional language trajectories. In countries with increasingly large numbers of limited-literate adult language learners, there is an urgent need to inspire limited-literate adults to speak out and be heard. To address the needs of adult language learners with inconsistent schooling, and the ways their identities, agency, and social power influence opportunities for participation in the target language communities of practice, scholars need to implement bottom-up and responsive curricular and research innovations. To this end, informed by poststructuralist and transdisciplinary understandings of English language development, I investigated the identity work (self-positioning and other-positioning) and agency deployment …

Predictors Of Economic Outlook In Stability Operations, Juan Carlos Garcia

USF Tampa Graduate Theses and Dissertations

The participation of the United States military in stability efforts has increased dramatically since 2001. The core of current U. S. stabilization policies and measures derives from the US military's lessons in countering insurgencies since the late 20th century through the ongoing conflicts in Iraq, Afghanistan, and countries experiencing radical Islamic insurgencies. Counterinsurgency operations focus on gaining support from the relevant population through security, governance, and economic efforts. This research seeks to improve the understanding of the relationship between perceptions of security and governance on populations' economic outlook during stability operations. Applying the “Winning Hearts and Minds” approach to the …

Development Of Next-Generation, Fast, Accurate, Transferable, And Polarizable Force-Fields For Heterogenous Material Simulations, Adam E. Hogan

USF Tampa Graduate Theses and Dissertations

Theoretical modeling is extremely useful in guiding to experiment; however quantitatively accurate modeling of energy-relevant small molecule sorption at the heterogeneous interfaces present in metal-organic materials (MOMs) is currently challenging. MOMs are an emerging class of materials consisting of inorganic clusters and organic linkers that offer great potential in the areas of gas storage, gas separation, and catalysis due to the possibility of large surface areas, complex heterogeneous surfaces, and rational designability. Efficient chemical separations involving these materials could reduce the US’s total energy consumption by approximately 10 to 15%. In this dissertation, the parameterization of small molecules and metal …

Asian Male Stereotypes: An Investigation Of Current Beliefs About Asian Males And Stereotypes Perpetuated By U.S. Modern Cinema, Noelle Knopp

USF Tampa Graduate Theses and Dissertations

This is a triangulated two-part study with a quasi-experiment design. Study Part 1 performed a textual analysis supported by the theory of framing on the films Crazy Rich Asians, To All the Boys I’ve Loved Before, Always Be My Maybe, and To All the Boys: P.S. I Still Love You to find commonalities among portrayals of prominent East Asian male characters. Using Wong et. al’s findings of common perceived stereotypes by Asian American males, the author used the six traits defined by Wong et. al as a base to see if the films corresponded to or deviated from the stereotypes …

Isolation Of Specific Phospholipids From Nannochloropsis Oculata Microalga For Cosmetic Applications, Ahmet Yener Manisali

USF Tampa Graduate Theses and Dissertations

Algae, photosynthetic aquatic organisms, have recently caught the attention of the food, cosmetic, pharmaceutical, and nutraceutical industries due to the variety of natural compounds in their cellular bodies such as carbohydrates, lipids, and proteins. Specifically, microalgae-derived natural compounds such as phospholipids are extensively utilized in cosmetics as part of liposome formers, emulsifiers, solubilizers, and wetting agents. Although phospholipids are currently extracted from food sources, this practice raises sustainability concerns. Hence, growing microalgae on the provision of macronutrients such as nitrates and phosphates will serve as a more sustainable source of the several specific phospholipids such as phosphatidylcholine (PC), phosphatidyl-ethanolamine (PE), …

I'M Going Digital: Potentials For Online Communities Through Internet Remix, Justin N. Nguyen

USF Tampa Graduate Theses and Dissertations

In the late 90s and early 2000s, computers and internet usage became more widespread. This widespread usage led to a proliferation of “digital objects” (digital versions of audio, video, image, text, etc.) dispersed through the internet. The instant and near-infinite reproducibility of digital objects combined with their ease of manipulation by computer users has led to their widespread recognition and use as tools of communication online. As a consequence, technology has allowed those traditionally thought of as consumers to become cultural producers by repurposing digital media objects. Because of this, internet remix of digital objects is one of the best …

Circadian Rhythms And The Embodiment Of Social Zeitgebers: Linking The Bio And Social, Tiffany R. Moore

USF Tampa Graduate Theses and Dissertations

Virtually all biological processes are under direct or indirect control of the circadian system. Chronic disruption of circadian rhythms, termed chronodisruption, is linked to increased risk for adverse health outcomes such as cancer, depression, and cardiometabolic disease. Circadian rhythms are highly sensitive to sociocultural contexts. As a result, circadian rhythms provide a valuable entryway to explore issues of embodiment. Here, embodiment refers to processes through which social experiences ‘get under the skin’ to become biological and manifest in health. To better understand what proximate social factors influence chronodisruption, this study assessed chronodisruption and social zeitgebers among a population of 15 …

Corporate Brand Impact On Sales / Revenue Per Share, Brad A. Puckey

USF Tampa Graduate Theses and Dissertations

The purpose of this dissertation is to identify the linkage between the corporate brand and sales / revenue per share growth. Utilizing a unique database, the CoreBrand® Index, this study is a quantitative analysis of the interaction between the corporate brand and financial data. A relationship between corporate brand and financial data has been suspected by practitioners; however, it has never been proven. For the first time, quantitative analysis is conducted in this dissertation using this unique dataset.

This study is intended to help those responsible for managing corporate brands to better understand their impacts and benefits. The more that …

Characterizing Childhood And Diet In Migration Period Hungary, Kirsten A. Verostick

USF Tampa Graduate Theses and Dissertations

This project investigates children, childhood and diet of two different Migration Period (4^th-8^th century AD) populations, the Gepids and the Avars, in the Great Hungarian Plain. The main goal was to assess whether there are differences in treatment of children and differences in breastfeeding and weaning practices in these distinct sites and populations. Secondarily, this research also focused on characterizing diet for the Gepids and the Avars at four different sites from the Migration Period, to understand how the migration and settling into the region and the assimilation of other groups into the two populations affected their …

Conversion From Metal Oxide To Mof Thin Films As A Platform Of Chemical Sensing, Meng Chen

USF Tampa Graduate Theses and Dissertations

Chemical sensor is working as a widely used device which can be applied to the detection of specific chemicals that are existing in the environment especially in gas phase. The detection of combustible and toxic chemicals can be extremely important in the field of both industrial and civil activities. The chemical sensor is commonly operating by utilizing a chemical or physical interaction between the specific chemical compound and the sensing functional unit, to obtain an electronic signal caused by the property change and realize the chemical detection. Traditional chemical gas sensors such as catalytic gas sensor, thermal conductivity gas sensor, …

Mapping Narrative Transactions: A Method/Framework For Exploring Multimodal Documents As Social Semiotic Sites For Ethnographic Study, Anne W. Anderson

USF Tampa Graduate Theses and Dissertations

This work grew from my attempts to find a method for studying a body of editorial cartoons—multi-modal documents producing cross-modal responses—that were created and published in an earlier time period, in order to answer questions about the culture in which the cartoons were produced and read. Initially my questions included wondering about the topics cartoonists addressed, the narratives cartoonists created to address the topics, how the narratives were framed, and in what ways the narratives might have been seen as attempts to shape the larger cultural discourse around the topics. However, given the number of possible combinations of information streams …

Design And Implementation Of Solid/Solid Phononic Crystal Structures In Lateral Extensional Thin-Film Piezoelectric On Silicon Micromechanical Resonators, Abdulrahman Alsolami

USF Tampa Graduate Theses and Dissertations

Achieving high quality factor in MEMS resonator devices is a critical demand for today’s wireless communication and sensing technologies. In order to reach this goal, several dedicated prior works have been conducted based on published literature at different frequency ranges. Particularly, piezoelectrically transduced resonators, which are widely deployed in commercial wireless communication systems, could benefit from greatly improved qualify factor. So far, their development has evolved from thin film bulk acoustic resonators (FBAR’s) using surface attached piezoelectric thin-film transducers with moderate Q factors to high Q resonators equipped with a side-supporting tether (anchor) attached vibrating resonators that allow the devices …

An Analysis Of The Antecedents And Consequences Of Robotic Process Automation In Accounting Functions., Aharon Yoki

USF Tampa Graduate Theses and Dissertations

Robotic Process Automation (“RPA”) is a recently emergent technology that has exploded in popularity as firms seek to capitalize upon the marketing promise of cost reduction and improved efficiency. Yet, with this expansion of RPA, very little is known about the firms’ initial drivers, perceptions during implementation, and how outcomes align with initial expectations. RPA could displace and dramatically change the workforce, but it is unclear how employees will respond to the continuing spread of RPA. This study seeks to fill that important gap in the scholarly literature with an exploratory mixed-methods study. The first chapter is an extensive literature …

Networks In The Norm Life Cycle And The Diffusion Of Environmental Norms, James E. Fry

USF Tampa Graduate Theses and Dissertations

In this research, I analyze how Transnational Municipal Networks (TMNs) and cities affect the diffusion and transmission of a decarbonization norm. Urban policy and political science scholars assert that cities and their networks are influential in implementing internationally coordinated environmental policy. However, few projects have analyzed how local actors may diffuse environmental norms that have been developed in the international system. Using the norm life cycle, this research explores the transmission of a decarbonization norm by means of GHG measurement and mitigation. I identify two critical objectives associated with a decarbonization norm: establishing a system for monitoring GHG emissions and …

Tuning Degradation And Cell Adhesion In Next Generation Resorbable Implants, Ufuomaroghene Ikoba

USF Tampa Graduate Theses and Dissertations

Osteoarthritic and bone degenerative diseases are expected to grow immensely as the aging population, 65 years and older increases. Orthopedic implants are one sub-class of medical devices that are used to treat bone breaks and fractures. Traditionally, internal fixation implants are manufactured using titanium or stainless steel. Magnesium, a bioresorbable and biodegradable material, has been proposed as an alternative to titanium and stainless steel. The goal of this research is to control the degradation behavior of magnesium implants by developing crystallized thin poly(lactic acid) copolymer films as protective coatings. To do this, this work was divided into two aims. Aim …

Elevating Training Effectiveness: Exploring The Factors In The Learner’S Environment That Influence Training Transfer, Michael Summers

USF Tampa Graduate Theses and Dissertations

Considerable evidence from science and business practice suggests that a tremendous amount of money and effort is spent by organizations on designing and delivering training programs so that employees adopt and use their newly acquired skills and knowledge when they return to their jobs. A large percentage of that money is often wasted due to missed opportunities to create a conducive transfer climate for workers expected to change the way they work as an outcome of training. The extensive literature on training transfer supports the existence of work environment factors that influence the application of training. The focus of this …

“We Developed Solidarity”: Family, Race, Identity, And Space-Time In Recent Multiethnic U.S. American Fiction, Kimber L. Wiggs

USF Tampa Graduate Theses and Dissertations

In Diversity in Families, sociologists Maxine Baca Zinn, D. Stanley Eitzen, and Barbara Wells assert, “At a very personal level, families are crucial shapers of who we are and what our opportunities have been and will be” (xvii). The novels in this dissertation—Octavia Butler’s Kindred (1979), Karen Tei Yamashita’s Tropic of Orange (1997), and Rosaura Sánchez and Beatrice Pita’s Lunar Braceros 2125-2148 (2009)—examine the role of family in the development of individual identity and the practice of social justice. These authors foreground characters from various ethnic backgrounds and depict how the characters form new, multiethnic families. My dissertation explores the …

Save Water Drink Wine: Challenges Of Implementing The Ethnography Of The Temecula Valley Wine Industry Into Food-Energy-Water Nexus Decision-Making, Zaida E. Darley

USF Tampa Graduate Theses and Dissertations

This study demonstrates the interrelationships of people, food, energy, and water associated with Temecula Valley’s wine industry and reveals contradictions and biases in how people view these resources, which ultimately shape management and policies. The FEW (Food, Energy, and Water) Nexus is an approach increasingly used by policy- and decision-makers to understand the interrelationship of several resources. However, a FEW Nexus approach often lacks in social aspects that influence environmentally and economically sustainable outcomes, especially in the wine and wine tourism industry. When quantitative and qualitative data are available, the other challenge is which assessment to use. Two assessments often …

New Mechanisms That Control Fact Histone Chaperone And Transcription-Mediated Genome Stability, Angelo Vincenzo De Vivo Diaz

USF Tampa Graduate Theses and Dissertations

The Role of deubiquitinating enzymes (DUBs) in transcription, replication and genome integrity is not one that has been extensively researched. OTU DUBs are a particular class of enzyme with very little known about them.OTUD5 is a cysteine protease in the OTU family responsible to processing lysine 48 and lysine 63 ubiquitin chains. Recently, it has been implicated in to play a role in transcription through its binding partner UBR5. OTUD5 has also been shown to interact with proteins such as PDCD5 and p53, potentially have great importance in cell fate. In this study, I describe new discovered functions for OTUD5 …

Spilling The Lgbt(Ea)Q: A Study Of Lgbtq Youth Early School Experiences, Nicholas Catania

USF Tampa Graduate Theses and Dissertations

In this arts-based qualitative study, I explore the experiences of LGBTQ youth regarding inclusion during their early schooling. The purpose of this study was to examine the experiences of youth participants regarding inclusion during their early school experiences to better assist educators and policy-makers at all levels with information to provide safe and equitable learning environments for LGBTQ youth to succeed. The intent of this study was to uncover the ways schools may marginalize or be inclusive of LGBTQ youth by examining school experiences with a particular focus at the elementary level. Data was collected through semi-structured interviews, focus groups, …

A Novel Magnetic Respiratory Sensor For Human Healthcare, Kee Young Hwang

USF Tampa Graduate Theses and Dissertations

Breathing is vital to life. Therefore, the real-time monitoring of a patient’s breathing pattern is crucial to respiratory rehabilitation therapies such as magnetic resonance exams for respiratory-triggered imaging, chronic pulmonary disease treatment, and synchronized functional electrical stimulation. While numerous respiratory devices have been developed, they are often in direct contact with a patient, which can yield inaccurate or limited data. In this study, we developed a novel, non-invasive, and contactless magnetic sensing platform that can precisely monitor a patient’s breathing, movement, or sleep patterns, thus providing efficient monitoring at a clinic or home. A magneto-LC resonance (MLCR) sensor converts the …