Digital Commons Network^™

Toward Culturally Relevant Emotion Detection Using Physiological Signals, Khadija Zanna

USF Tampa Graduate Theses and Dissertations

Research shows that emotional distress has a statistically significant impact on a student’s grade point average and intent to drop out of college. Because students of different races have varying college experiences, it is important to understand the emotional experiences of different racial groups to better support students’ needs and academic success. In this work, we explore several physiological responses to ten different emotional stimuli captured from 140 students. We employ unsupervised learning via the Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm and supervised learning via Random Forests and Support Vector machines to analyze clustering partitions and classification …

The Athletics Behind The Academics: The Academic Advisor’S Role In The Lives Of Student Athletes, Max J.R. Murray

USF Tampa Graduate Theses and Dissertations

College athletics is a mainstay in the United States entertainment market. The public will often recognize the names of high-profile college athletes as they move from college sports to professional sports. However, while they are in college, sports is not the only focus of their attention. Student athletes are in college to get an education. The academic advisor is someone that works with the student to better facilitate the academic aspects of college. Using in-depth, semi-structured interviews, I find out how an academic advisor views their formal and informal roles and responsibilities and how they accomplish them. Among prior research …

The Roles Of Emotional Cues And Purchasing Incentives In Wechat Commerce: A Content Analysis, Xuezhu Hao

USF Tampa Graduate Theses and Dissertations

In recent years with the development of social media, a variety of business forms have also developed. In the United States, there are advertising and business forms based on social media platforms such as Facebook and Instagram. However, in China, WeChat is the mainstream social media platform with a staggering number of active online users. As a mainstream social media platform, WeChat has extended a new business form, which is the Micro-business. With the changes in purchasing needs and economic forms, more and more people are participating in Micro-business buying and selling transactions. The formation of a new type of …

Evaluating Effects Of Cancer Genetic Counseling On Several Brief Patient Impact Measures, Alyson Kneusel

USF Tampa Graduate Theses and Dissertations

Many outcomes for assessing cancer genetic counseling (GC) utility have been proposed, with few studies evaluating multiple, theory-based, brief patient-reported experience and outcome measures simultaneously as part of a single study. We conducted a pilot study in which patients seen for pre-test cancer GC took a survey before and after their GC session to evaluate the session’s impact on multiple patient impact measures and assess the relationship between these measures. Measures based on the self-determination theory (SDT) assessed three basic needs including: 1) perceived autonomy support, 2) relatedness to the provider, and 3) competence to make a decision. SDT posits …

The Ecology And Conservation Of An Urban Karst Subterranean Estuary, Robert J. Scharping

USF Tampa Graduate Theses and Dissertations

Sulphur Springs is an artesian spring and part of the limestone karst topography of metropolitan Tampa, Florida, USA. Underlying this spring is an extensive cave system that hosts saltwater vents and conspicuous microbial biofilm communities. For decades, water from Sulphur Springs has been extracted and used to supplement public water supply and dry season flows in the Hillsborough River Estuary. This dissertation describes research conducted at Sulphur Springs to determine the impacts of urban land use on the underlying cave and downstream estuary ecosystems, and presents the use of this system as a model to fill certain ecological knowledge gaps. …

The Role Of Apkcs And Apkc Inhibitors In Cell Proliferation And Invasion In Breast And Ovarian Cancer, Tracess B. Smalley

USF Tampa Graduate Theses and Dissertations

Research has demonstrated that the atypical protein kinase C-zeta (PKC-ζ) is a component of many dysregulated pathways in breast and ovarian cancer, including cellular proliferation, survival, and cell cycle upregulation. Breast and ovarian cancers affect women every day and are second and fifth leading cause of cancer death. Women who seek treatments are commonly met with invasive surgeries or chemotherapy. Protein kinase C (PKC) is a family of serine and threonine phosphorylating kinases that have been shown to modulate and transduce signaling cascades that play roles in the development and survival of cancers. Atypical PKC (aPKC), have been heavily suggested …

Instrumentalization Theory: An Analytical Heuristic For A Heightened Social Awareness Of Machine Learning Algorithms In Social Media, Andrew R. Miller

USF Tampa Graduate Theses and Dissertations

New innovations in information management and communication technologies have produced technological assemblages which have radically altered the way people socialize and interact with the world. The most significant and ubiquitous of these technologies is what is colloquially referred to as ‘machine learning.’ Like most, if not all, technologies, machine learning models are neither wholly good nor bad. Their functional ethics are largely determined by the context in which they are employed. However, their ubiquity demands that we develop a heightened social consciousness of the way machine learning simultaneous constrains, manipulates and democratizes social processes. In order to develop better social …

Analysis Of Malicious Behavior On Social Media Platforms Using Agent-Based Modeling, Agnieszka Anna Onuchowska

USF Tampa Graduate Theses and Dissertations

The following dissertation focuses on the problem of malicious accounts actions on social media. The dissertation proposes an artifact in a form of an agent-based model of Twitter network. The model is then deployed to investigate a policy intervention that aims at controlling malicious behavior on social media outlets. The main research question is: How can we best intervene in social networks to minimize the effects of malicious actors? The dissertation consists of four studies that are organized as follows. First study is designed as an exploratory investigation that deploys descriptive analysis and unsupervised methods to analyze the types of …

Testing Glutathione-S-Transferase Mu 1 (Gstm1) In Protecting Retinal Pigment Epithelium Cells From Oxidative Stress, Inyoung C. Garner

USF Tampa Graduate Theses and Dissertations

Currently, the most widely available treatment for wet age-related macular degeneration (AMD) involves the intraocular delivery of biopharmaceuticals, such as anti-VEGF therapy. Drawbacks of this treatment includes a short-term efficacy, requiring repeated injections with additional risks, and a limited availability of options for non-responders. Furthermore, there are no treatments available for patients diagnosed with dry-AMD. The drawbacks and limitations of current therapies represent a need for more effective and permanent therapy as the prevalence of the population affected by AMD is growing. Antioxidant gene therapies are one solution to these implications, protecting the cells from oxidative stress which is one …

The Short-Term Effects Of Different Removal Methods Of Urochloa Maxima, Guinea Grass, On Acoustic Complexity, Connor D. Wagner

USF Tampa Graduate Theses and Dissertations

Invasive exotic species are one of the biggest threats to ecosystems in Florida, and land managers instill numerous methods to try and control them. Mechanical treatment, such as mowing, and chemical treatment, such as foliar spraying with the herbicide glyphosate, are two methods of invasive species removal. While the effectiveness of these management practices has been thoroughly observed and studied, little research has been done on their impacts to the ecological soundscape. The ecological soundscape refers to all biotic and abiotic sounds produced in the environment. Species presence and acoustic complexity was measured before and immediately following a mechanical and …

The Development And Testing Of The Genetic Counseling Communication Checklist (Gcc): A Novel Process Measure, Katherine N. Hehmeyer

USF Tampa Graduate Theses and Dissertations

Given that genetic counseling (GC) is a discipline that relies on communication to help people understand and adapt to the genetic contribution of disease, a practical method of comprehensively documenting GC communication strategies is needed to better understand the communication strategies utilized by genetic counselors and the variability that exists within the process. To this end, we created a novel process measure called the Genetic Counseling Communication Checklist (GCC), utilizing previously validated measures, communication/counseling theories, and research findings. Two researchers independently coded six video-taped mock GC sessions using the GCC. Following each session, the GCC was further modified to improve …

Developing And Facilitating Socioscientific Issues Based Science Lessons: Elementary Preservice Teachers’ Experiences, Melanie Kinskey

USF Tampa Graduate Theses and Dissertations

Instruction focused around socioscientific issues (SSI) has been found to improve skills for scientific literacy among K – 12 students. Unfortunately, teachers and preservice teachers are reluctant to implement SSI during science instruction due to a lack of self-efficacy or fear of the nature of controversial issues. In response to this obstacle, many researchers have begun work with helping preservice teachers become prepared to facilitate SSI. While there are findings from existing research that contribute to the overall state of preparing preservice teachers to facilitate SSI, perhaps the most influential is the assertion that preservice teachers need formal SSI training …

Entre La Persona Y La Poesía: Atravesando La Sombra De Alejandra Pizarnik, Laura Pérez Torremocha

USF Tampa Graduate Theses and Dissertations

Alejandra Pizarnik remains a mystery of latin american literature. Despite the multiple investigations that have been conveyed about her writing, the myth of this poéte maudite is still unsolved. We find continuous changes of significance in her words, according to her theory “una palabra significa una cosa, y otra más, y otra más” (a word means one thing, and something else, and something else); she uses a language that looks simple but it actually has a desire for infinity. In this thesis we will analyse her Diarios and her poetry in order to try to solve the mystery of this …

"The Fiery Furnaces Of Hell": Rhetorical Dynamism In Youngstown, Oh, Joshua M. Rea

USF Tampa Graduate Theses and Dissertations

This dissertation seeks to define the theory of rhetorical dynamism and illustrate how this theory can be applied to studies of rhetoric and place. The study builds on current rhetorical scholarship and adds to it with the four characteristics of rhetorical dynamism: that places are rhetorically invented, that they hold rhetorical tensions, that they are fluid and constantly evolving, and that they are active participants in a reciprocal rhetorical process. Rhetorical dynamism is illustrated in two places, Westlake Terrace and Idora Park, each in Youngstown, OH. By building a rhetorical history of each site, the study shows how each place …

Mystic Medicine: Afro-Jamaican Religio-Cultural Epistemology And The Decolonization Of Health, Jake Wumkes

USF Tampa Graduate Theses and Dissertations

The underlying motivation for this thesis is the position that colonialism, or coloniality, continues to thrive as an ideological and institutional framework all over the world, to the detriment of the majority of the population of the earth, and particularly of indigenous peoples and the African diaspora. Thus, what is sought here is a decolonization both of mind and institutions. Looking at the case of Jamaica, one can see how coloniality continues to undermine the beliefs, behaviors, institutions, and overall well-being of the majority African-descended population of the island in many ways both culturally and economically. I narrow my focus …

Asking Why: Analyzing Students' Explanations Of Organic Chemistry Reaction Mechanisms Using Lexical Analysis And Predictive Logistic Regression Models, Amber J. Dood

USF Tampa Graduate Theses and Dissertations

In order to evaluate student understanding of chemical reactions and reaction mechanisms, it is necessary to ask students to construct written or oral explanations of mechanistic representations. Studies have shown that students can reproduce pictorial representations of organic chemistry mechanisms without understanding the meaning of the representations. Grading written assessments is time-consuming, which limits their use in large-lecture courses. To address this limitation, lexical analysis and logistic regression techniques can be used to develop models that predict human scoring for constructed-response items. In this dissertation, students’ responses to constructed-response items about what is happening and why in organic chemistry reaction …

The Role Of Financial Insecurity And Expectations On Perspectives Of Mental Health Services Among Refugees, Jacqueline M. Siven

USF Tampa Graduate Theses and Dissertations

This dissertation examines how perspectives of mental health among refugees are situated within the realities of the refugee resettlement system, a population for which information on this issue is quite limited. Through in-depth interviews and participant observation with Congolese refugees and non-Congolese refugee-serving professionals in a major Florida city, this dissertation examines how perceptions of mental health and mental health services among refugees were affected by financial insecurity and disparities in expectations. Local Congolese refugees expected the American Dream; they believed that once they arrived they would find prosperity through hard work. Instead they experienced frustration and distress because the …

Kinesthetically Speaking: Human And Animal Communication In British Literature Of The Long Eighteenth Century, Dana Jolene Laitinen

USF Tampa Graduate Theses and Dissertations

While scholars have studied talking animals in British children’s literature of the long eighteenth century, little attention has been given to cross-species conversations. Thus, my research starts with the following questions: what does it mean when humans talk to animals in literary texts? What do representations of interspecific communication in eighteenth-century British literature accomplish? Interspecific communication in the literary works of this study may be understood in the context of the philosophy of sensibility’s debt to French Renaissance humanist Michel de Montaigne, particularly his arguments about animal semiosis in An Apology for Raymond Sebond. I argue that interspecific conversations challenge …

Predictors Of Premature Discontinuation From Behavioral Health Services: A Mixed Methods Study Guided By The Andersen & Newman Model Of Health Care Utilization, Shawna M. Green

USF Tampa Graduate Theses and Dissertations

Emerging adults, ages 18 to 25, demonstrate high prevalence of behavioral health illnesses, yet infrequently access treatment. For those who do access care, premature discontinuation rates from treatment are high, ranging from 30 to 50 percent. For the emerging adults who initiate contact with the systems of care by attending at least one session of therapy, there is an opportunity to engage them in treatment and prevent negative health outcomes in adulthood. This mixed methods study used the Andersen & Newman (1973) model of healthcare utilization as a guiding framework to explore and examine premature discontinuation from public sector behavioral …

Structure Based Inhibitor Discovery Targeting Multiple Β-Lactamases Involved In Antibiotic Resistance, Afroza Akhtar

USF Tampa Graduate Theses and Dissertations

Emergence of antibiotic resistance severely threatens the existing medication and prevention facilities against an over increasing range of infections caused by a wide range of microbes. Specifically, treatment of Gram-negative bacterial infection is getting more problematic due to their resilience against β-lactam antibiotics: the most commonly prescribed antibiotics in clinical settings. Production of β-lactamases is the most prevalent mechanism utilized by various Gram-negative pathogens to become resistant to the β-lactam antibiotics e.g, penicillins, cephalosporins, carbapenems and monobactams. These enzymes mediate their function through hydrolyzing the core β-lactam ring present in all β-lactam antibiotics which causes opening of the ring and …

Clustering Methods For Gene Expression Data Of Oxytricha Trifallax, Kyle Houfek

USF Tampa Graduate Theses and Dissertations

Clustering is a data analysis method which is used in a large variety of research fields. Many different algorithms exist for clustering, and none of them can be considered universally better than the others. Different methods of clustering are expounded upon, including hierarchical clustering and k-means clustering. Topological data analysis is also described, showing how topology can be used to infer structural information about the data set. We discuss how one finds the validity of clusters, as well as an optimal clustering method, and conclude with how we used various clustering methods to analyze transcriptome data from the ciliate Oxytricha …

Mechanisms Of Carbon Movement And Stabilization In Mangrove Wetlands, Carey Schafer

USF Tampa Graduate Theses and Dissertations

Mangrove forests have higher rates of carbon storage per unit area than any other coastal or terrestrial habitat, largely due to their significant soil stocks. More effort has been placed on quantifying mangrove soil carbon stock, the amount of carbon stored in the upper meter of mangrove soils, than identifying the processes governing in situ soil organic carbon (SOC) cycling and stabilization. An understanding of the mechanisms related to carbon transport and stability is necessary to constrain current wetland carbon stocks and to determine how sea level rise will impact future carbon stores. This study uses a variety of radiometric …

Reliability Analysis Of Power Grids And Its Interdependent Infrastructures: An Interaction Graph-Based Approach, Upama Nakarmi

USF Tampa Graduate Theses and Dissertations

Large blackouts with significant societal and economic impacts result from cascade of failures in the transmission network of power grids. Understanding and mitigating cascading failures in power grids is challenging due to the large number of components and their complex interactions, wherein, in addition to the physical topology of the system, the physics of power flow and functional dependencies among components largely affect the spatial distribution and propagation of failures. In this dissertation, data-driven interaction graphs, which help in capturing the underlying interactions and influences among the components during cascading failures, are used for capturing the non-local nature of propagation …

Algorithms To Profile Driver Behavior From Zero-Permission Embedded Sensors, Bharti Goel

USF Tampa Graduate Theses and Dissertations

In this dissertation, we design algorithms to profile driver behavior from zero-permission sensors embedded in modern smartphones and wearables. These sensors are typically the accelerometer, gyroscope, magnetometer, pressure sensor and a few more than are now available in most modern smartphones and wearables. In order to profile driving behavior, we devised algorithms for detecting distraction while driving due to the use of modern-day smartphones (e.g., calling, texting and reading while driving) in real-time.

To do so, we conduct an experiment with 16 subjects on a realistic driving simulator, where each subject, where each subject carries a smartphone and a wearable …

Assessment Of Land Cover Change In St. Martin’S Marsh Aquatic Preserve, Florida, Usa, Katie Wagner

USF Tampa Graduate Theses and Dissertations

St. Martin’s Marsh Aquatic Preserve (SMMAP) is a 28,461 acre (115.18 km2) preserve located on the coast of Citrus County, Florida, USA. There has been no published research that focused on coastal change on this unique coast. This thesis research focuses on coastal land cover change that has occurred within the preserve from 1988 to 2018. Multitemporal Landsat images were classified using a support vector machine (SVM) classification, while changes in vegetation were evaluated using the normalized difference vegetation index (NDVI). Field research was conducted to examine nineteen sites for classification training and test data and notes on habitat composition. …

How Audiovisual Composition Reveals Gendered Limitations And Possibilities In Lady Bird In The Wake Of #Metoo, Chandler Micah Reeder

USF Tampa Graduate Theses and Dissertations

This thesis focuses on the film Lady Bird and the historical coincidence of its release one month after the online movement #MeToo began. By giving frame and sound equal importance in my analysis of the film, rather than opposing these elements, I emphasize audiovisual composition and reveal the mutual dependence within what are considered traditional divisions of theory in cinema. These oppositions relate to control and escape, as they are portrayed through the mother and daughter characters, Marion and Lady Bird, as well as through image and sonic elements. My work demonstrates how the audiovisual composition of the film mediates …

Towards Safe Power Oversubscription And Energy Efficiency Of Data Centers, Sulav Malla

USF Tampa Graduate Theses and Dissertations

Data centers contribute to approximately 1% of the global electricity consumption, and billions of dollars are spent annually worldwide in construction of new data centers to meet the rising demand for cloud-based services. Given the high cost of construction, the power infrastructure in a data center is typically oversubscribed. Power oversubscription leads to efficient use of data center power hierarchy while simultaneously reducing the power provisioning cost. Power overload situations can occur in oversubscribed data centers. Power overload can lead to power capping of servers or even power outages – both of which degrade the performance of the services offered …

A Plan For Progress, Preservation, And Presentation At The Safety Harbor Museum And Cultural Center, Amanda L. Ward

USF Tampa Graduate Theses and Dissertations

There are numerous ways in which heritage can be managed and presented to the public, such as: physical museums, virtual museums, tours of historic homes, and archaeological parks. For this project, I participated in and observed heritage preservation management under a unique partnership of the City of Safety Harbor recreation department and the Safety Harbor Museum Board in Safety Harbor, Florida. My internship was with the Safety Harbor Museum and Cultural Center, primarily under the direction of Shannon Schafer and Christine McWilliams. My initial focus was assisting these two groups with projects specific to the needs of the museum. I …

Legitimizing Violence: Functional Similarities Of The Religious And The Secular Violence, Tahir Topal

USF Tampa Graduate Theses and Dissertations

As a consequence of the separation between religion and politics, known as secularism, the discussion about violence has also been divided into two main categories –Religious Violence and Non-Religious Violence– in the modern Western academia. The tendency of the leading scholarly work in the discourse of "religious violence" is that "religion" is inclined to be violent more than secular institutions for several reasons. Therefore, the state's violence, as being secular, steps in to bring peace. And the foundational cause of the theories relies heavily on the essential differences of "religion" and the secular. With counter-arguments, William T. Cavanaugh and Talal …

Low-Grade Kaolin Clay Natural Resource For Use As A Supplementary Cementitious Material In Structural Concrete Elements, Brandon X. Lorentz

USF Tampa Graduate Theses and Dissertations

At the turn of the century, low-grade kaolin clay (LGK) was presented as a widely available and potential natural resource of supplementary cementitious materials (SCM) for producing high performance concretes. In using LGK as an SCM, clinker production is reduced, aiding environmental concerns with associated CO2 emissions. These types of clays have very heterogeneous mineralogy and microstructural characteristics, causing unique influences on concrete structural and flow performance, although these influences are not well understood. This research studies LGK natural to the state of Florida and assesses their potential use as high performance SCM.

Ten kaolin clays were obtained through a …