Digital Commons Network^™

For The Common Defense: The Evolution Of National Security Strategy-Making Institutions & Impact On American Grand Strategy, Nathan D. Barrick

USF Tampa Graduate Theses and Dissertations

This dissertation applies a Neoclassical Realism model to examine how the evolution of United States (U.S.) national security strategy-making institutions has resulted in a path dependent accrual of autonomy and increasing influence over the formulation of American grand strategy. Once U.S. national security strategy-making institutions were created, their existence inexorably led to increasing autonomy, the creation of new strategy-making institutions, and subtle influence in shaping American grand strategy by preferential focus on a militarized foreign policy. Additionally, the more autonomous these strategy-making institutions have become, the further they have strayed from the Constitutional mandate to create a government which provides …

Two Phenomena In Contemporary Music Education: Mental Toughness And The Law, Jason R. Sivill

USF Tampa Graduate Theses and Dissertations

This collection of works involved examinations of two phenomena that currently impact music education in the United States and constitute challenges for both pre-service and in-service music educators. Article one is an exploration of college aged musicians, their experiences with critical commentary and stressful scenarios encountered in and through applied music studies, and the role that mental toughness might play in these experiences.

This study examined the perceptions of college level studio teachers and their students.

Results of the study indicated that significant differences in mental toughness scores existed between the studio teacher group and the students (as a whole) …

Bystander Intervention, Victimization, And Routine Activities Theory: An Examination Of Feminist Routine Activities Theory In Cyber Space, Jennifer A. Leili

USF Tampa Graduate Theses and Dissertations

Routine Activities Theory (RAT) is one of the most widely used theories to explain victimization. It has been applied to a wide range of criminal victimizations, such as property crimes (Miethe, Stafford, & Long, 1987) and urban murder (Messner & Tardiff, 1985). While traditional RAT has been used to explain violence against women, the feminist perspective of RAT developed by Schwartz and Pitts (1995) provides a better explanation by incorporating cultural factors that shape the conditions that give rise to offending. The current study draws on feminist RAT in order to explore three different types of victimization involving women: stalking, …

Mitigating Barriers To Chronic Disease Risk Factor Prevention And Management In Disadvantaged Communities, Krys M. Johnson

USF Tampa Graduate Theses and Dissertations

Background: The incidence and prevalence of chronic disease (CD) has increased in recent decades due to the advent of CD management and life-extending technologies. To address this burden on the population and healthcare system, evidence-based CD prevention programs have been developed to reduce the incidence and therefore the prevalence of these diseases. Despite the development and dissemination of effective interventions, African-Americans and Hispanics have disproportionately higher prevalence of CD and associated risk factors and disproportionately lower participation in CD prevention programs. Overweight/obesity and CDs may have intergenerational effects, with overweight adults being more likely to have overweight children who are …

Understanding The Mechanisms Between Job Stress And Employee Sleep: A Daily Diary Study, Marijana L. Arvan

USF Tampa Graduate Theses and Dissertations

The present study investigated how three job stressors, workload, unfinished tasks, and mistreatment from coworkers and supervisors, manifest in sleep impairment. Using the transactional model of stress, allostatic load model, the cognitive activation theory of stress (CATS), and findings from the sleep medicine literature, each job stressor was predicted to have three distinct pathways to sleep quality: an affective path (anger or anxiety), a cognitive path (anticipatory stress or rumination), and a behavioral path (sleep hygiene behaviors). The proposed models argued for two-stage mediation, in which the cognitive and affective strains of job stressors impact sleep quality both directly and …

Intrinsically Disorder Proteins And Liquid-Liquid Phase Transitions In Neurodegenerative Diseases, April Lynn Darling

USF Tampa Graduate Theses and Dissertations

Neurodegenerative diseases have a negative impact on health and economics, effecting more than 20 million people in the United States and costing around $800 billion in 2018. Additionally, most neurodegenerative diseases such as Alzheimer’s Disease (AD), Amyotrophic Lateral Sclerosis (ALS), Frontotemporal Dementia (FTD), and several others are fatal and have no cure or effective treatment. Many of these diseases have a common theme of protein aggregates being present in disease tissue. These aggregates are thought to be toxic to the cell and prevention of pathological aggregation and elimination of these cellular aggregates may serve as a potential therapeutic approach to …

Ethnic Identity As A Protective Factor In Early Adolescent Youth Depression: An Investigation Of Differences By Race And Gender, Leah Bonilla

USF Tampa Graduate Theses and Dissertations

Adolescent mental illness is a major concern in the Unites States. The adolescent stage is a critical developmental period of physical and mental changes, thus it is important to understand protective factors associated with positive wellbeing. The current study aimed to explore: (a) the associations among race, gender, ethnic identity, and depressive symptoms among eighth grade adolescents, (b) to what extent are there differences in degree of depressive symptoms among youth based on race and gender, and (c) to what extent a strong sense of ethnic identity serves as a protective factor against the development of depression among youth with …

Validating The Construct Of Resiliency In The Health Literacy And Resiliency Scale (Hlrs-Y) With The Child And Youth Resiliency Measure (Cyrm-28), Mercedes N. Cambric

USF Tampa Graduate Theses and Dissertations

Chronic health conditions in youth have increased over the last several decades. It is estimated that within the United States there are between 15% to 18% of youth who are living with a chronic health condition (Centers for Disease Control and Prevention [CDC], 2010). The CDC defines a chronic health condition as an illness that lasts for three months or longer that can be managed, but not cured (CDC, 2010). Although there is some research on youth living with chronic illnesses, there are minimal studies that assess the constructs of health literacy, resiliency, and support/advocacy within this population. The current …

Statistical Models To Test Measurement Invariance With Paired And Partially Nested Data: A Monte Carlo Study, Diep Thi Nguyen

USF Tampa Graduate Theses and Dissertations

While assessing emotions, behaviors or performance of preschoolers and young children, scores from adults such as parent psychiatrist and teacher ratings are used rather scores from children themselves. Data from parent ratings or from parents and teachers are often nested such as students are within teachers and a child is within their parents. This popular nested feature of data in educational, social and behavioral sciences makes measurement invariance (MI) testing across informants of children methodologically challenging. There was lack of studies that take into account the nested structure of data in MI testing for multiple adult informants, especially no simulation …

Design And Synthesis Of Novel Agents For The Treatment Of Tropical Diseases, Linda Corrinne Barbeto

USF Tampa Graduate Theses and Dissertations

Infectious diseases have had an impact on populations since the beginning of humanity. Despite huge advances in the fight against these conditions, they continue to be the leading cause of death and disability for a large portion of the world’s populace. Those most adversely affected predominately live in the more improvised areas of the developing world. Often treatments are made inaccessible to these areas due to cost, complicated administration requirements, severe side effects, and / or compound instability. Even when treatments are available the accelerated development of resistance has created an urgent need for the creation of new molecules with …

In Another's Voice: Making Sense Of Reproductive Health As Women Of Color, Nivethitha Ketheeswaran

USF Tampa Graduate Theses and Dissertations

The goals of this project are twofold. The first goal is to articulate my sense making of reproductive health for Women of color in the United States as a postcolonial condition; one that I trace back to the logics of elimination of settler colonialism (Wolfe, 2006) and frame as maintained through the colonial institutions, or racial projects (Omi & Winant, 2015), of the Prison Industrial Complex, the welfare system, and the health care system which create and perpetuate dominant cultural narratives of “the welfare queen”, “the negligent Black mother”, and “the wily patient”. I show how these narratives colonize the …

Statistical Learning Of Biomedical Non-Stationary Signals And Quality Of Life Modeling, Mahdi Goudarzi

USF Tampa Graduate Theses and Dissertations

Statistical learning is a set of tools for modeling and understanding complex datasets. It is a recently developed area in statistics and blends with parallel developments in computer science and, in particular, machine learning.

The classification of biomedical non-stationary signals such as Electroencephalogram (EEG) is always a challenging problem due to their complexity. The low spatial resolution on the scalp, curse of dimensionality, poor signal-to-noise ratio are disadvantages of working with biomedical signals. EEG signals are unstructured data which needs preprocessing steps to extract informative features which are measurable and predictive. In the first two chapters of this dissertation, EEG …

An Eye Opener In Stroke: Mitochondrial Dysfunction And Stem Cell Repair In Stroke-Induced Retinal Ischemia, Hung Vu Thien Nguyen

USF Tampa Graduate Theses and Dissertations

Stoke is a leading cause of disability and mortality across the globe, making it a global health crisis. However, treatments for stroke remain limited with narrow therapeutic time window. Visual impairment negatively affects patients’ quality of life. During stroke, the disruption in blood flow might affect both brain and eye resulting in cerebral and retinal ischemia. Currently, there is a lack of treatment option that targets both cerebral and retinal ischemia. Ischemic stroke pathology is complex and multiphasic. The ischemic event is followed by a secondary cascade of inflammatory cytokines exacerbating the initial focal injury and expanding into the penumbra. …

Targeting Pten For Therapy In Cancer And Ptenopathies, Emily Palumbo

USF Tampa Graduate Theses and Dissertations

PTEN, a dual protein and lipid phosphatase, regulates a myriad of cellular functions including PI3K pathway signaling, cell migration, proliferation, invasion and apoptosis. PTEN mutations often lead to multiple malignancies, including prostate, breast, endometrial, skin and brain cancers, associated with hyperactive PI3K signaling. PTEN mutations have also been associated with a variety of other diseases, classified as PTEN Hamartoma Tumor Syndromes (PHTS). In addition, compromised function or reduced expression of PTEN due to non-genomic mechanisms are associated with many types of hyperproliferative diseases, such as restenosis and neoplastic diseases, including melanoma, lung, breast, prostate and colon cancers. Although PI3K pathway …

Optimizing Early Intervention For Preschoolers' Vocabulary Development, Lindsey A. Peters-Sanders

USF Tampa Graduate Theses and Dissertations

Preschool is a critical time in children’s oral language and pre-literacy skill development, but this development varies greatly among children. Those with smaller vocabularies are at greater risk for developing future language and reading difficulties that persist throughout their education. Because vocabulary knowledge is essential for later reading success, early instruction in preschool is key. To better understand how to enhance preschoolers’ word learning, the current dissertation contains three studies that examined the benefits of explicit vocabulary instruction and identified the factors that best facilitated vocabulary learning among a diverse group of young children. To aid in the early identification …

The Tampa Gym Study: An Ethnographic Exploration Of Gyms, Female Gym-Goers And The Quest For Fitness In Tampa, Fl, Danielle Reneé Rosen

USF Tampa Graduate Theses and Dissertations

The Tampa Gym Study was an ethnographic examination of veteran women exercisers, their workout routines, and their attitudes towards the workouts that they undertake in two Tampa area gyms. The study’s principle objective was to study “fitness culture” in these facilities and the manner in which that culture is embodied in the language women use to describe themselves and their exercise behaviors.

The obesity crisis in the United States has been significantly responsible for an increase in membership in gyms and fitness facilities nationwide. The “culture of fitness” as it is embodied in these facilities has impacted women and their …

Widow Narratives On Film And In Memoirs: Exploring Formula Stories Of Grief And Loss Of Older Women After The Death Of A Spouse, Jennifer R. Bender

USF Tampa Graduate Theses and Dissertations

This dissertation analyzes narratives (written and mediated) about widows’ post-loss experiences—specifically the ways in which these women embody and adjust/adhere to their post-loss widow identities—and whether or not the canonical/formula stories about widows reflect current experiences of widowhood. I look at older widowed women—both those in well-read widow memoirs and also in media portrayals of widows on film. The canonical view of widows as not attractive, not useful, and not interesting needs to be reexamined in light of changing ideas about gender roles and increased longevity. Surely older women have experiences, desires, and goals that encompass more than being socially …

Hierarchical Self-Assembly And Substitution Rules, Daniel Alejandro Cruz

USF Tampa Graduate Theses and Dissertations

A set of elementary building blocks undergoes self-assembly if local interactions govern how this set forms intricate structures. Self-assembly has been widely observed in nature, ranging from the field of crystallography to the study of viruses and multicellular organisms. A natural question is whether a model of self-assembly can capture the hierarchical growth seen in nature or in other fields of mathematics. In this work, we consider hierarchical growth in substitution rules; informally, a substitution rule describes the iterated process by which the polygons of a given set are individually enlarged and dissected. We develop the Polygonal Two-Handed Assembly Model …

The Left Behind Generation: Instructional Practices To Increase The Technological Literacy Of Older Adults, Daphne Pace Phillips

USF Tampa Graduate Theses and Dissertations

This study sought to explore the utilization and perception of best practices by community-based technology training programs when instructing older adults to become technologically literate. The target population included adults age 55 years and older of the Baby Boomer generational cohort who ranged academically from possessing a high school diploma or General Education Diploma (GED) through a college degree and had enrolled in a local technology training program to improve their technological skill level with the goal of obtaining employment and/or to remain functionally independent. This study was conducted at three community technology training centers located in the southeast that …

Bamboo As A Sustainable Engineering Material: Mechanical Properties, Safety Factors, And Experimental Testing, Lorena Sánchez Vivas

USF Tampa Graduate Theses and Dissertations

With exponential global population growth occurring and associated environmentally destructive consumption of natural resources, alternative materials that are fast growing and sustainable are being sought out to satisfy human needs. One material that is fast growing and sustainable that can be used to meet most basic needs of humans (i.e. shelter, food, tools) is the plant bamboo, of the grass family Poaceae. Bamboo was used in the past by native peoples who lived in the environment where bamboo natively grows (all continents except Europe and Antarctica) with proven success for uses such as shelter, piping, tools, wells, food, fencing, baskets …

Mapping Reward Values To Cues, Locations, And Objects: The Influence Of Reward Associations On Visual Attention, Constanza De Dios

USF Tampa Graduate Theses and Dissertations

Previous work has attempted to fit reward-driven attentional selection as being exogenous (stimulus-driven) or endogenous (goal-driven). However, recent work suggests that reward’s effects on attention depend on the type of stimulus feature that the motivational information is imparted during learning (incentive salience). If true, then reward should not be limited to solely impacting early perceptual or late categorization processes attention. The current study used event-related potentials (ERPs) to test the idea that reward’s effects on attention depend on the process that the reward information is embedded – early perceptual or late categorization. Results demonstrated reward-driven effects on perceptual representation when …

Mhealth Elisa System For Point-Of-Care, Arsenii Zhdanov

USF Tampa Graduate Theses and Dissertations

Enzyme-linked immunosorbent assay (ELISA) is one of the most important technologies for biochemical analysis critical for diagnosis and monitoring of many diseases. Traditional systems for ELISA incubation and reading are expensive and bulky, thus cannot be used at pointof- care or in the field. Here, we design and demonstrate a new miniature mobile phone based system for ELISA. This mHealth system can be used to complete all steps of the assay, including incubation and reading. It can be fabricated at low cost, portable, and can transfer test results via mobile phone. We have designed the sample dispensing system, incubation chamber, …

A Multi-Dimensional Macrolevel Study Of Drug Enforcement Strategies, Heroin Prices, And Heroin Consumption Rates, Alexander G. Toth

USF Tampa Graduate Theses and Dissertations

American policy makers primarily embrace a deterrent-based policing agenda to curb illicit drug trafficking and use that relies on the principles of the economic price elasticity of demand (Boynum & Reuter, 2005). This counter-drug platform includes three fundamental programs: arresting offenders, seizing illicit drugs, and eradicating horticultural sources of illicit drugs (U.S. DEA, 2015). One of the main goals of these programs is to deter illegal trafficking and use by increasing the price of illicit substances so they are no longer attractive to consumers. The United States has weathered various drug use epidemics during its history, and currently it is …

Home-Based Cognitive Monitoring: The Role Of Personality And Predictors Of Adherence And Satisfaction, Nasreen A. Sadeq

USF Tampa Graduate Theses and Dissertations

Over the last several decades, a growing awareness of the benefits of regular screening for common health conditions, such as cancer and cardiovascular diseases, has paved the way for preventative screenings to become routine in medical settings. Given that cognitive impairment is frequently reported as the number one worry of older adults, home-based cognitive monitoring may be an innovative solution that allows middle aged and older adults to take an active role in monitoring an important aspect of their health. Although several home-based cognitive monitoring programs have been validated for use in clinical and home-based settings, the Cogstate Brief Battery …

Roux-En-Y Gastric Bypass Attenuates Obesity-Related Liver Injury, Drew Alan Rideout

USF Tampa Graduate Theses and Dissertations

Obesity is a growing epidemic in the United States with significant co-morbidities. Non-Alcoholic Fatty Liver Disease (NAFLD) is a prevalent manifestation of obesity that can lead to cirrhosis. Roux-en-Y gastric bypass (RYGB) results in substantial long-term weight loss and resolution of obesity-related metabolic diseases. There appears to be a weight-independent molecular mechanism for the improvement of diabetes mellitus and NAFLD after RYGB, which is poorly understood. Obesity is associated with chronic inflammation that accompanies the hepatic steatosis. Through unknown mechanisms, RYGB in humans increases serum levels of the fat-derived adipocytokine, adiponectin. Adiponectin (an anti-inflammatory cytokine) is known to have a …

Supporting Persons With Dementia In Communicating Their Care Preferences, Vanessa L. Burshnic

USF Tampa Graduate Theses and Dissertations

Person-centered care is important to the quality of life of nursing home residents with dementia. Preference assessments enable person-centered care by documenting residents’ preferred activities. Residents with severe dementia are less likely to have a role in preference assessment due to communication challenges associated with the disease. External supports (visual and text cues) are effective in improving the communication of residents with dementia, but these cues are often not used in practice. Standard assessment (verbal questioning) places greater demands on short-term memory and attention, which are known deficits in dementia.

Applying a within-subjects design, this study evaluated two conditions (standard …

An Evaluation Of The Effects Of A Student Trajectory Enhancement Program (Step Up) On High School Performance, Odalys G. Pritchard

USF Tampa Graduate Theses and Dissertations

The Student Trajectory Enhancement Program (STEP UP) was launched in 2014 by Hillsborough County Public Schools (HCPS) as a six-week summer program that targeted over-age, retained, potentially under-achieving students completing the sixth grade. The purpose of this study was to conduct a summative evaluation of the effectiveness of the STEP UP program in keeping program participants “on track” for high school graduation and to determine if the intended goals of the program were realized.

STEP UP was developed in response to compelling data that there is an unacceptably high number of overage students in middle school in HCPS. STEP UP …

No One Wants To Read What You Write: A Contextualized Analysis Of Service Course Assignments, Tanya P. Zarlengo

USF Tampa Graduate Theses and Dissertations

This dissertation takes a systematic approach to answering the question of what services course assignment should accomplish in curricula by looking at the assignment from a contextual perspective that takes into consideration the programmatic factors in which the assignment circulates. The dissertation accomplishes this work by studying curricular artifacts, to include course syllabi and assignment descriptions, as well as textbooks. Additionally, interviews with program administrators and textbook authors are analyzed. The results of this analysis posit a programmatic network that visualizes connections between program, course, and staffing administrative factors with assignments as the nexus of the network. This dissertation illustrates …

A Machine Learning Approach To Predicting Community Engagement On Social Media During Disasters, Adel Alshehri

USF Tampa Graduate Theses and Dissertations

The use of social media is expanding significantly and can serve a variety of purposes. Over the last few years, users of social media have played an increasing role in the dissemination of emergency and disaster information. It is becoming more common for affected populations and other stakeholders to turn to Twitter to gather information about a crisis when decisions need to be made, and action is taken. However, social media platforms, especially on Twitter, presents some drawbacks when it comes to gathering information during disasters. These drawbacks include information overload, messages are written in an informal format, the presence …

Risk And Resilience Pertaining To Mental Health Of Youth Attending A College In Kathmandu Who Were Exposed To The 2015 Earthquakes During Their Adolescence: A Mixed Method Study, Vinita Sharma

USF Tampa Graduate Theses and Dissertations

Background: Adverse mental health outcomes have been previously reported among survivors of natural disasters. Available studies mostly focus on risk factors and not resilience. In 2015, a series of earthquakes caused massive loss of lives and livelihood in Nepal. Epidemiological data pertaining to youth mental health in Nepal is limited. Information about the post-earthquake mental health of youth who were exposed to earthquakes during their adolescence in Nepal is scarce.

Purpose: The purpose of this study was to address risk and resilience factors related to mental health among college-attending Nepali youth (18-20 years) exposed to the 2015 earthquake during their …