Digital Commons Network^™

Comparison Of Bacterial And Viral Reduction Across Different Wastewater Treatment Processes, Aayushi R. Vagadia

USF Tampa Graduate Theses and Dissertations

Today billions of people live without access to basic sanitation facilities, and thousands die every week due to diseases caused by fecal contamination associated with improper sanitation. It has thus become crucial for decision makers to have access to relevant and sufficient data to implement appropriate solutions to these problems. The Global Water Pathogen Project http://www.waterpathogens.org/ is dedicated to providing an up-to-date source of data on pathogen reduction associated with different sanitation technologies that are important if the world is to achieve the Sustainable Development Goals (SDGs) related to health and sanitation provision. In this research, a subset of the …

Are Mixed-Sex And Single-Sex Groups Equally Effective Across Males And Females? A Quasi-Experimental Investigation Of A Cognitive Dissonance-Based Eating Disorder Prevention Program In Mixed-Sex High School Populations, Christina L. Verzijl

USF Tampa Graduate Theses and Dissertations

The Body Project is a cognitive dissonance-based eating disorder (ED) preventive intervention program with ample empirical support among adolescent and undergraduate female samples. Recently, community stakeholders and data suggest that preventive efforts must also target body satisfaction and increasing ED symptomatology seen in males. The current study examined the efficacy of a male-only (MO), a mixed-sex (MS), and a traditional female-only (FO) Body Project program compared to a minimal attention control (AC) in a community sample. Participants included adolescents male and female students (N = 182) aged 13-19 years across three high school sites. Participants completed self-report measures assessing body …

Comparison Of Modeled And Measured Pesticide Concentrations In Air, Trenell Davis Boggans

USF Tampa Graduate Theses and Dissertations

Chlorpyrifos (CPF) is a popular organophosphorus insecticide that is heavily used in the agriculture industry as a means of pest control. Chlorpyrifos is known for its toxic effect to inhibit the enzyme acetylcholinesterase (ACHE) in humans and is widely used in areas of California where the site of application is close to occupied areas, such that exposures to residents and bystanders can occur due to secondary drift. Secondary drift refers to the volatilization of a pesticide from the surface to which it was applied (e.g. soil or plant foliage) and subsequent off-site movement in ambient air. Secondary drift is different …

Women’S Body Image In The Media: Fitspiration On Instagram, Brook M. Bryant

USF Tampa Graduate Theses and Dissertations

Several studies have been done to examine the effects of fitspiration on body image satisfaction using social comparison theory but there has yet to be a study done using framing theory to find out what exactly these images are focusing on. This research will use framing theory to examine what characteristics and body types are being seen on Instagram under the hashtag “fitspiration”.

Using a mixed method approach, this study uses a textual analysis to first get a larger sample set of fitspiration images on Instagram. It then uses in-depth interviews to get a deeper understanding of what the general …

Sorption Of Benzene, Toluene And Ethylbenzene By Plasticized Poly (Ethyl Methacrylate) Using Quartz Crystal Microbalance At 298.15k, Kiranpreet Kaur

USF Tampa Graduate Theses and Dissertations

Quartz crystal microbalances (QCM) are chemical sensors used for liquid and vapor sensing. In this thesis work, plasticized poly (ethyl methacrylate) (PEMA) coated QCM was used to study sorption behavior of benzene, ethylbenzene and toluene in respective polymer at 298.15K. Poly (ethyl methacrylate) (PEMA) is a promising polymer with solubility parameter close to BTEX compounds, but it's glassy and rigid nature at room temperature make it less sensitive. The addition of plasticizers (Diisononyl cyclohexane-1,2-dicarboxylate (DINCH) and Diisooctyl azelate (DIOA)) lowers the glass transition temperature, provides flexibility and thus increases the free volume of the polymer to enhance analyte sorption. In …

Exploring The Decisional Process Behind Alcohol Use: Converging Evidence Across Multiple Theories, Emily T. Noyes

USF Tampa Graduate Theses and Dissertations

Understanding the etiological and maintaining processes of problematic drinking continues to be a challenge. There has been a growing amount of research focusing on the decisional processes that act to maintain addictive behaviors. Elucidating this underlying process is key to understanding the range of drinking behavior observed among individuals. Rather than relying on one theory, examining overlap between multiple theories of alcohol use may lead to a better understanding of such a process. Using a construct validation approach, this study utilized motivational (Ambivalence Model of Craving), cognitive (Alcohol Outcome Expectancy Theory), and behavioral theories (Behavioral Economics) of alcohol use to …

Cancer Patient Experience Using Integrative Health Techniques, Spencer R. Bockover

USF Tampa Graduate Theses and Dissertations

Objective:

From a patient-centered perspective, this study sought to explore cancer patient experiences using integrative health techniques, while undergoing or after having completed conventional cancer therapy.

Methods:

Recruitment and data collection both occurred within the Supportive Care Medicine Department of a comprehensive cancer center in the southeastern United States. The primary collection method was semi-structured interviews, of which 13 were conducted.

Results:

Patients using integrative therapies experienced a variety of physical and mental/emotional benefits from their chosen therapy, such as management of lymphedema and nerve damage, increased mobility, and improved self-confidence.

Conclusion:

Integrative therapies can provide many benefits to patients …

Ice And Guano Deposits In El Malpais Lava Tubes: Potential Paleoclimate Archives For The Southwest United States, Dylan S. Parmenter

USF Tampa Graduate Theses and Dissertations

Three ice cores and one guano core were obtained from lava tubes in El Malpais National Monument, New Mexico, in the Southwest United States. A large hiatus in the Bat Cave guano record, resulting from mining activities in the early 1900's, left us with only ~50 years of data (from AD 1955-2006) to use in analysis. 13C values in guano (-18 to -11.6‰) primarily fall within the range of C4 plants, and likely indicate a tendency of Tadarida brasiliensis to feed on insects over grasslands to the North or South of the park. Variations in 13C values for this period …

Eustress In Advanced Placement (Ap) And International Baccalaureate (Ib) Students, Amanda C. Moseley

USF Tampa Graduate Theses and Dissertations

Eustress, the positive response to stress, is a relatively understudied concept. Most of the research on eustress has been concentrated in the occupational and management setting. Empirical studies of eustress in adolescents are absent, even though youth experience unique sources and magnitudes of stress. Specifically, Advanced Placement (AP) and International Baccalaureate (IB) students report more stress than their general education peers but excel in their rigorous academic program. Eustress is related to a variety of positive psychological and physiological outcomes among adult samples, which makes it an important concept to explore in adolescent samples. Many constructs such as self-efficacy, hope, …

An Examination Of The Relationship Between Health Literacy And Dietary Practices Among College Students: A Test Of The Integrated Model Of Health Literacy, Alison B. Oberne

USF Tampa Graduate Theses and Dissertations

Overweight and obesity continue to plague Americans and contribute to decreased quantity and quality of life. Americans of all ages experience overweight and obesity; however, increasing rates occur during young adulthood. Young adults develop dietary practice behaviors that persist into adulthood and can contribute to weight-related chronic diseases. Approximately half of all young adults are enrolled in college, and, approximately 38% of college students are either overweight or obese.

Dietary practices are health behaviors that can either increase or decrease risk for overweight and obesity. Much research has explored predictors of dietary practices among college students; however, there is a …

Evaluating The Efficiency And Correspondence Of Trial-Based And Session-Based Functional Analyses In Controlled Settings, Sarah M. Gonzalez

USF Tampa Graduate Theses and Dissertations

Functional analyses (FAs) are used to identify the maintaining contingencies of problem behavior. However, FAs present some limitations. Functional analyses can be time consuming. In this study we evaluated the efficiency and correspondence of a modified trial-based FA versus a session-based FA, in a controlled setting. We conducted both the trial-based and session-based FAs with five subjects that engaged in problem behavior. On average, the trial-based FAs were completed in 32.8% less time than the session-based FAs, and took 40% less meeting and calendar days than the session-based FAs. Based on the analyses of four Board Certified Behavior Analysts (Doctoral), …

Application Of A Floating Membrane Algal Photobioreactor For Freshwater Aquaculture, Hsiang-Yang Shyu

USF Tampa Graduate Theses and Dissertations

As the global population grows, water and food demand also increase. The intensive aquaculture industry has helped to mitigate these problems. In order to make aquaculture sustainable, it is necessary to remove the abundant nutrients produced by fish in the water. In this study, the role of the microalga of Chlorella vulgaris in the Isolated Cultivation of Algal Resources Utilizing Selectivity (ICARUS) membrane photobioreactor was evaluated for nutrient control in the aquaculture system. The production of algal biomass, the removal rate of nutrients, and the impact of microalgae on cultured organisms were monitored during the operation of aquaculture systems. At …

Understanding Long-Standing Belief Systems In Business: A Qualitative Study Of The Equine Industry, Robyn Lord

USF Tampa Graduate Theses and Dissertations

Change management is a highly researched topic. With industry changing at record speed, it is inevitable that corporations will engage in a change management endeavor. As humans innately resist change at first exposure, corporations strive to acquire knowledge in adoption. It may not be enough to understand status quo proponents, but rather their underlying long-standing belief systems which may be affecting how they view change. What makes an employee resist corporate change? Most studies conclude that humans will resist innately. This research dives into the unique environment of the equine industry to uncover how long-standing belief systems contribute to adoption …

Body Image, Self-Esteem And Eating Disturbance Among Chinese Women: Testing The Tripartite Influence Model, Weiwei Wang

USF Tampa Graduate Theses and Dissertations

The purpose of the study is to confirm the reasons behind young Chinese women’s eating disturbances and self-esteem. The researcher uses the Tripartite Influence model to illustrate the relationship between internalization and pressures in the form of peer, family, and media pressure. It further reveals the relationship between internalization and self-esteem and eating disorders. Besides conforming with the mode of young Chinese females, it aims at finding out the reasons behind each relevant relationship. One point of the study is the different impact of media pressure on young Chinese females; the influence of media tends to be much lower in …

Examining The Relationship Between A Co-Curricular Service-Learning Experience And Moral Competence, Jamie Burns Burriss

USF Tampa Graduate Theses and Dissertations

Short-term service-learning experiences such as alternative breaks are increasing in popularity due to the focus on service in higher education and the institution’s responsibility to ensure students are graduating with the skills needed to succeed in an increasingly competitive, global economy and contribute to a democratic society as citizens who address societal needs. To meet this demand, colleges and universities continue to explore ways to increase civic engagement in the form of curricular and co-curricular programs. Additionally, faculty and administrators in higher education are intensely seeking a revitalization of the public purposes of higher education, which include educating for moral …

The Relationship Between First Year Student Expectations And Persistence Into The Second Year Of College, Ashley Baltuch Dees

USF Tampa Graduate Theses and Dissertations

Incoming first year students have varying expectations for their college experience. As Florida public education budgets are more closely aligned with student persistence and graduation rates, it is vital institutions retain more first time in college students. The purpose of this study was to better understand how first year student college expectations on academic preparation, co-curricular involvement, socializing, and institutional commitment relate to persistence into the second year of college at one of Florida’s large, preeminent public research universities.

This quantitative study utilized the Beginning College Survey of Student Engagement (BCSSE) in order to better understand incoming student expectations. The …

Sleep Disorders In Children With Autism Spectrum Disorder: A Pilot Study Of An Assessment Of Pediatric Providers' Practices And Perceptions, Kristin Lynn Edwards

USF Tampa Graduate Theses and Dissertations

Children with Autism Spectrum Disorder (ASD) have increased rates for sleep problems compared with typically developing children. Although physicians practicing in pediatric primary care settings have the potential to detect and address sleep problems at an early age, research investigating the sleep management practices of pediatricians in primary care is scant and does not particularly address children with ASD. This study investigated the frequency of sleep screening measures utilized by pediatric providers during well-child examinations, the most frequently recommended treatments, the barriers and facilitators to screening for sleep problems, and the perceived confidence of pediatricians with regard to screening for …

Statistical Monitoring Of Queuing Networks, Yaren Bilge Kaya

USF Tampa Graduate Theses and Dissertations

Queuing systems are important parts of our daily lives and to keep their operations at an efficient level they need to be monitored by using queuing Performance Metrics, such as average queue lengths and average waiting times. On the other hand queue lengths and waiting times are generally random variables and their distributions depend on different properties like arrival rates, service times, number of servers. We focused on detecting the change in service rates in this report. Therefore, we monitored queues by using Cumulative Sum(CUSUM) charts based on likelihood ratios and compared the Average Run Length values of different service …

Recovery Of Nutrients From Anaerobically Digested Enhanced Biological Phosphorus Removal (Ebpr) Sludge Through Struvite Precipitation, Maraida Balaguer-Barbosa

USF Tampa Graduate Theses and Dissertations

Water resources in Florida have been severely degraded by eutrophic conditions, resulting toxic algae blooms, which negatively affect health and tourism. Eutrophication, or excessive amount of phosphorus (P) and nitrogen (N) in water, overstimulates the production of aquatic plants, depletes dissolved oxygen, and deteriorates the aquatic environment. However, phosphorus is a non-renewable resource essential for all living organisms. In fact, more than half of the total demand for P globally is to supply the food industry, which has concerningly accelerated the depletion rates of phosphate reserves.

In many wastewater treatment plants (WWTPs), the enhanced biological phosphorus removal (EBPR) approach has …

Access To Safe Water Supply: Management Of Catchment For The Protection Of Source Water In Ghana, Michael K. Eduful

USF Tampa Graduate Theses and Dissertations

This study investigates provisions made within institutional and regulatory frameworks of water resources management to enhance multi-stakeholder relationships and the challenges of maintaining those relationships, and implications of water resources management for rural communities in the Densu River basin, Ghana. The primary objectives of this study were four fold, these are to: i) review the existing regulatory framework and how it promotes or hinders multi-stakeholder relationships within the catchment area; ii) examine multi-stakeholder relationships to identify challenges in promoting effective collaboration in water resources management; iii) explore the impacts of catchment management on the livelihoods of rural communities; and iv) …

Gate Level Probabilistic Simulation Based Hardware Trojan Susceptibility Analysis Of Combinational Circuits, Venkata Lakshmi Bhargavi Gurram

USF Tampa Graduate Theses and Dissertations

Today multi-million gate integrated circuits are being commonly used in many critical (eg., health care) and sensitive (eg., military) applications. Therefore, they are susceptible to malicious modifications, namely, Hardware Trojans (HTs), with the intent of leaking sensitive information, denial-of-service etc. There are many ways of inserting Hardware Trojans in ICs. Thus, HT detection and mitigation are very important tasks. In this thesis, we propose a novel probabilistic simulation based approach to estimate the susceptibility of a combinational circuit to a HT. One of the common ways is to simulate the netlist with typical input sequences and identifying low activity nets …

Emotion Recognition Using Deep Convolutional Neural Network With Large Scale Physiological Data, Astha Sharma

USF Tampa Graduate Theses and Dissertations

Classification of emotions plays a very important role in affective computing and has real-world applications in fields as diverse as entertainment, medical, defense, retail, and education. These applications include video games, virtual reality, pain recognition, lie detection, classification of Autistic Spectrum Disorder (ASD), analysis of stress levels, and determining attention levels. This vast range of applications motivated us to study automatic emotion recognition which can be done by using facial expression, speech, and physiological data.

A person’s physiological signals such are heart rate, and blood pressure are deeply linked with their emotional states and can be used to identify a …

The Role Of Forests In Securing Hydropower Needs Of Cambodia, Mohit Kaura

USF Tampa Graduate Theses and Dissertations

Hydropower relies on protection of watersheds to regulate water and sediment yields. Deforestation accelerates the rate of soil erosion, thereby increasing the amount of river sediments heading to the dam's reservoir, decreasing the longevity of the dam. In Cambodia in particular, recent deforestation rates are among the largest on the planet, and forests are expected to disappear within the lifespan of proposed dams. The cost of protecting and restoring forested watersheds can be considered as an annual investment towards sustainable reservoir management and hydropower generation. A modeling framework is developed to estimate the sediment accumulation in reservoirs from deforestation-driven soil …

The Medievalizing Process: Religious Medievalism In Romantic And Victorian Literature, Timothy M. Curran

USF Tampa Graduate Theses and Dissertations

The Medievalizing Process: Religious Medievalism in Romantic and Victorian Literature posits religious medievalism as one among many critical paradigms through which we might better understand literary efforts to bring notions of sanctity back into the modern world. As a cultural and artistic practice, medievalism processes the loss of medieval forms of understanding in the modern imagination and resuscitates these lost forms in new and imaginative ways to serve the purposes of the present. My dissertation proposes religious medievalism as a critical method that decodes modern texts’ lamentations over a perceived loss of the sacred. My project locates textual moments in …

Effect Of Heating On Heat Capacity Of Vegetable Oils Used For Biofuel Production, Sailee Nitin Nagpurkar

USF Tampa Graduate Theses and Dissertations

Biodiesel has become a major renewable fuel for diesel engines particularly from various waste sources. New biodiesel production technologies are emerging with data demands for efficient process design. This project highlights the data requirements, gaps in the thermo-physical property data, and consolidation of experimental and estimation methods for effective process development. Knowing the thermodynamic properties of a substance is important in order to know what process or procedures it has to go under. The aim of this project is to assess the potential of vegetable oils to serve as feedstock for biofuel production by determining their heat capacity (Cp). Such …

Drone Movement Control Using Gesture Recognition From Wearable Devices, Venkata Sireesha Dadi

USF Tampa Graduate Theses and Dissertations

Gesture Recognition is a new and upcoming trend that is being widely used in wearable devices and mobile handheld devices. The sensors like Accelerometer, Gyroscope, Heart rate monitor, Barometer and Ambient Light are mostly being included within the device to detect the static or continuous motion, rotational velocity, heartbeat rate of the user, pressure and light conditions for the device respectively. Implementing algorithms to capture the readings of these sensors and implementing them in a necessary way allows a user to use the wearable devices for a wide variety of applications. One such application is controlling Drone that takes user …

Asian Immigrants In Leadership Roles In The United States: Exploration For Leader Development, Ramil L. Cabela

USF Tampa Graduate Theses and Dissertations

Cultural identity and resource availability aspects in traditional leadership development literature remain understudied, especially among minority populations like Asian immigrants.

This study explores the leadership journeys of 24 United States immigrants from China, India and the Philippines using a phenomenological approach, primarily with semi-structured interviews. Experiences of 18 additional immigrant leaders published in popular media were also analyzed.

Data from the study reveals that Asian migrants’ roads to leadership in U.S. organizations are heterogeneous and characterized by either linear or nonlinear, overlapping phases of leader development where migrant leaders overcome assimilation challenges and leverage their unique, individual human capital to …

Newsroom Narratives And Newsroom Solutions: Local Print Media In The Digital Age, John Pendygraft

USF Tampa Graduate Theses and Dissertations

This thesis seeks solutions to vexing problems facing media institutions today by exploring media narratives n the context of established anthropological theory. It is based in one local newsroom, the Tampa Bay Times, where I have worked for 22 years. The ethnography is a personal journey that draws on those decades of newsroom experience, social science theory, participant observation, interviews with journalists, and personal reflections. It examines dangerous historic periods of social dehumanization to put the political nature of today’s local print media crisis in context, and concludes that the greatest modern challenges to legacy journalism’s broken business model …

A Longitudinal Exploration Of Drive For Leanness: Potential Uniqueness, Sex Neutrality, Adaptive Nature, And Sociocultural Fit, Brittany Lang

USF Tampa Graduate Theses and Dissertations

Historically disordered eating research has been gendered with models focusing on women’s pursuit of a thin ideal, as well as men’s attempts to obtain a muscular ideal. The motivations to achieve these ideals are called the drive for thinness (DT) and drive for muscularity (DM). More recently, a cultural shift has been noted in that ideal bodies are converging across sexes to a lean ideal, with the associated motivation being labeled the drive for leanness (DL). As DL is a nascent construct, little is known about its relationships with DT and DM, or if it predicts or is predicted by …

The Intervention Path: The Experiences Of Mothers Seeking Help For Their Child With Atypical Behavioral Development, Renee Hoopes

USF Tampa Graduate Theses and Dissertations

Pre-school aged children experience challenging behaviors at a relatively common rate. Research shows that approximately 10–25 % of preschool-aged children engage in challenging behaviors to a greater degree than would be expected for their age (Lavigne, Gibbons, Christoffel, Arend, Rosenbaum, Binns, Sawon, Sobel & Isaacs, 1996). Problem behaviors are often the result of a child not following a typical developmental trajectory. Atypical development appears when a child either lags behind or jumps ahead of typical peer progress in physical, cognitive, behavioral, and social development or in adaptive life skills. When children with challenging behaviors are left untreated, their everyday functioning …