Digital Commons Network^™

Mechanistic Insight Into Β-Lactamase Catalysis, Inhibitor Design And Resistance, Michael Trent Kemp

USF Tampa Graduate Theses and Dissertations

The emergence of antibiotic resistance and spread of Gram negative bacteria poses a very real health threat to the public. The main mode of resistance within Gram negative bacteria is the production of β-lactamase enzymes that catalyze the breakdown of β-lactam antibiotics through a hydrolysis mechanism. Once the β-lactam ring is hydrolyzed and opened, the drug loses its efficacy, which allows for the bacteria to grow and proliferate uninhibited. These β-lactamase enzymes are organized into four categories based on the Ambler classification, with classes A, C and D being denoted as serine-based β-lactamase enzymes. Class B is composed of metalloenzymes …

Moving In Fluid: Exploring How Fishes Manipulate Water To Swim Efficiently, Nils B. Tack

USF Tampa Graduate Theses and Dissertations

Moving through a dense fluid such as water presents some unique challenges to minimizing energy use and maximizing performance (i.e., speed). Due to animal-fluid interactions during swimming (drag and thrust production) fish have evolved a variety of morphological structures and locomotor mechanisms. For instance, fish rely on body bending and/or fins to interact with the surrounding water such that energy can be transferred to generate thrust. Typically, this synergy promotes morphologies and behaviors aimed at enhancing propulsive efficiency and/or minimizing metabolic activity to lessen the cost of transport (COT). This work focuses on quantifying the energetic and hydromechanical benefits of …

Privies As Portals: A Ceramic And Glass Bottle Analysis Of A Late 19th Century Household Privy In Ellenton, Fl, Shana Boyer

USF Tampa Graduate Theses and Dissertations

This thesis uses ceramic and glass bottles recovered from a privy feature at the Gamble Plantation site to examine the manifestations of Victorian ideals and health practices of a wealthy white family living in Florida’s “pioneer” landscape. Through the analysis of these artifacts this thesis aims to understand the archaeology of status and consumption while evaluating how class can impact consumer behaviors. Artifacts for analysis were collected in the 2017 and 2018 field seasons using the systematic sampling method which led to the discovery of the privy feature at the end of the 2017 season. From the privy to the …

Instrumental Music Instruction And Executive Functions: A Cross-Sectional Study Of Romanian Children (10-12 Years), Adrian Sorin Iordache

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to assess the differences in verbal fluency, verbal memory, and processing speed of children (age 10-12) enrolled in a Romanian vocational music school as compared to a group enrolled in vocational visual arts school, and a group enrolled in a regular public school. This is the first study to assess children enrolled in a music school in Romania. A total of 105 participants (43 males and 62 females) 10 to 12 years old (M = 11.13, SD = .34) competed the testing. There were 36 participants (15 males and 21 females) in the music …

Decisions And How Doctors Make Them: Modeling Multilevel Decision-Making Within Diagnostic Medicine, Michelle S. Kaplan

USF Tampa Graduate Theses and Dissertations

Effective decision-making is critical and necessary for organizational success across a wide range of occupations, situations, and industries. However, decision making, by its nature, is not always a direct process of a single decision leading to a direct outcome. Rather, it can often become a multilevel process whereby one decision’s outcome leads to information that is used in subsequent larger or other types of decisions. The decision-making process then becomes progressively more complex and more difficult to navigate as these decisions compound within one another. Thus, decision-makers must find an appropriate way to approach such decisions. Understanding the multilevel nature …

Managing Incomplete Data In The Patient Discharge Summary To Support Correct Hospital Reimbursements, Fadi Naser Eddin

USF Tampa Graduate Theses and Dissertations

The patient discharge summary is a document that conveys the patient's story to other healthcare practitioners, external users, and, most importantly from a financial perspective, health insurers. A defect or incompleteness in the patient's discharge summary will result in delays in the collection process through denial of the entire or partial reimbursement claim or, in the best-case scenario, delay until the discharge summary issue is resolved. The purpose of this project is to address the issue of the incompleteness of discharge summary from the perspective of healthcare providers, with the goal of understanding, diagnosing, and intervening in the research problem. …

Investigation Of The Effectiveness Of Global Competency-Based Program Modules In Higher Education, Parandoosh Sadeghinia

USF Tampa Graduate Theses and Dissertations

Global competency-based modules are relatively new in higher education. As a way to measure global competency the USF Global Competency Test (GCT) modules objectively measure global competencies for individuals. The purpose of this study was to investigate the value of three global competency-based program modules and undergraduate student perceptions of the Unite Nations Sustainable Development Goals, the basis for the modules.

This study addressed the questions:

1. What are the change scores based on the Global Competency Test module pre/postassessment scores for students who participated in Operation: Global Action/Academic and Cultural Engagement program during Summer 2021?
2. Are there differences in the …

The Weekly Challenger, November 11, 2021, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The November 11, 2021, issue of The Weekly Challenger.

Unraveling The Role Of Novel G5 Peptidase Family Proteins In Virulence And Cell Envelope Biogenesis Of Staphylococcus Aureus, Stephanie M. Marroquin

USF Tampa Graduate Theses and Dissertations

Virulence factors and the bacterial cell envelope are two important components in S. aureus pathogenesis and survival. More importantly, understanding the regulation of these cellular processes is crucial to further understanding and combating this successful pathogen. To date, numerous factors have been identified as playing a role in the regulation of Agr activity in S. aureus, including transcription factors, antisense RNAs, and host elements. Herein we investigate the product of SAUSA300_1984 (termed MroQ), a transmembrane G5 peptidase family protein, as a novel effector of this system. Using a USA300 mroQ mutant we observed a drastic reduction in proteolysis, hemolysis, and …

Fighting Mass Diffusion Of Fake News On Social Media, Abdallah Musmar

USF Tampa Graduate Theses and Dissertations

Fake news has been considered one of the most challenging problems in the last few years. The effects of spreading fake news over social media platforms are widely observed across the globe as the depth and velocity of fake news reach far more than real news (Vosoughi et al., 2018). The plan for the following dissertation is to investigate the mass spread of fake news across social media and propose a framework to fight the spread of fake news by mixing preventive methods that could hinder the overall percentage of fake news sharing. We plan to create a study on …

Shortcut Nitrogen Removal In Photo-Sequencing Batch Reactor, Experiments, Dynamic Model And Full-Scale Design, Sahand Iman Shayan

USF Tampa Graduate Theses and Dissertations

Nitrogen is one of the essential elements for life; however, inefficient use of nitrogen creates major environmental problems. Nitrogen-rich streams from urban areas, farms, and wastewater treatment plants (WWTPs) lead to surface and groundwater contamination, resulting in eutrophication, hypoxia, and notable environmental, public health and economic damage. Ammonia is a form of nitrogen that can be created during industrial or biological nitrogen fixation or decomposition of biomass. Anaerobic digesters (ADs) in WWTP generate biogas from collected sludge from primary and secondary clarifiers to achieve energy recovery in the plant. However, sidestream effluent from dewatering AD sludge contains high concentrations of …

Engagement And Meaningfulness As Determinants Of Employee Retention: A Longitudinal Case Study, Calvin Williams

USF Tampa Graduate Theses and Dissertations

The lack of financial resources has long challenged government institutions to move employee wages toward the market rate average for hourly and salaried positions. This area of public employment, where motivation other than a pay increase is necessary due to constrained budgets, is not well studied or understood. The primary purpose of this longitudinal case study is to investigate factors that influence Administrative Service employees and increase their level of retention at the University of South Florida (USF), a state funded university. The objective of the case study was to better understand how enhanced psychological meaningfulness, and increased employee engagement …

Examining The Effects Of Hydrology And Reclaimed Water Application On Nutrient Retention In Wetlaculture Mesocosms In Southwest Florida, Andrew Wilson

USF Tampa Graduate Theses and Dissertations

The substantial increase among agricultural and urban land use over the past century is widely regarded as the leading cause in a variety of negative environmental impacts, particularly regarding eutrophication of both salt and fresh surface waters. Usage of both synthetic and natural fertilizers on agricultural fields and residential lawns has increased significantly in order to achieve maximum crop yield and green lawns. The nitrogen and phosphorus in these fertilizers inevitably run off the landscape and into downstream surface waters. The geographic scale of this issue makes it a challenge to overcome, as targeting specific sources/polluters is nearly impossible. Landscape-scale …

Exercise Prescription Practices In University Counseling Centers: Testing The Information-Motivation-Behavioral Skills Model, A'Naja M. Newsome

USF Tampa Graduate Theses and Dissertations

The co-occurence of physical inactivity and poor mental health in the college student population can lead to chronic health issues that have negative short-term (e.g., academic success and weight gain) and long-term (e.g., obesity, serious mental illness, and premature mortality) impacts. Integrating exercise prescription into the mental health treatment plan of college students could enhance the holistic care model described by The American College Health Association (ACHA) and Healthy Campus task force. Understanding the knowledge, attitudes, and skills that mental health professionals (MHPs) hold regarding exercise prescription is important for policy formation and program development for college student health. The …

Effectiveness Of An Early Literacy Intervention For Increasing Teen Parents' Child-Directed Speech And Conversational Turns, Deborah H. Christie

USF Tampa Graduate Theses and Dissertations

Children’s language ability upon entry to kindergarten is a powerful predictor of reading achievement throughout elementary school; yet disparities in children’s language growth have been detected as early as 18 months of age. These disparities have been linked to the quantity and quality of speech provided to children as they are learning to talk. The current study employed a single-case multiple-baseline across participants experimental design to evaluate the effectiveness of an early literacy intervention to increase teen parents’ child-directed speech and conversational turns. The intervention was delivered one-on-one via videoconferencing by a teen parent peer coach. Participants included teen parents …

Constructing 'Child Safety': Policy, Practice, And Marginalized Families In Florida's Child Welfare System, Melissa Hope Johnson

USF Tampa Graduate Theses and Dissertations

‘Child safety’ has become a central concept of the modern child welfare system, an institution whose purpose is to protect children from abuse and neglect. What safety means and how it is best accomplished, however, are highly contested and characterized by definitional ambiguity, inconsistent bureaucratic interpretation, and operational variability. Situating this research within the anthropology of the state, the purpose of the current study is to develop a deeper understanding of the ways in which the state enacts power in matters of the family and childrearing through the child welfare system, casting a critical lens on the strategies used in …

Differential Privacy For Regression Modeling In Health: An Evaluation Of Algorithms, Joseph Ficek

USF Tampa Graduate Theses and Dissertations

Background: There is a need for rigorous and standardized methods of privacy protection for shared data in the health sciences. Differential privacy is one such method that has gained much popularity due to its versatility and robustness. This study evaluates differential privacy for explanatory regression modeling in the context of health research.

Methods: Surveyed and newly proposed algorithms were evaluated with respect to the accuracy (bias and RMSE) of coefficient estimates, the empirical coverage probability of confidence intervals, and the power and type I error rates of hypothesis tests. Evaluations took place in both simulated and real data from a …

An Assessment And Exploration Of Recent Methodological Advances In Safety Data Analysis, Suryaprasanna Kumar Balusu

USF Tampa Graduate Theses and Dissertations

The injury severity and frequency of traffic crashes can be further reduced by implementing appropriate traffic safety measures. Several advanced methodologies have been developed in the recent decades to more accurately identify the factors affecting road safety. Such methodologies have helped policy makers formulate appropriate safety measures directed toward increasing seatbelt and helmet use, reducing speed limits in school zones, implementing adolescent driver programs, and so on. However, each methodological approach has its own strengths and weakness and could lead to different inferences. This dissertation assesses and explores a number of recently developed methodologies and their application to traffic safety …

Understanding Player And Clinician Perspectives On The Impact Of Problematic Gaming Behaviors In The United States, Amanda N. Weston

USF Tampa Graduate Theses and Dissertations

Due to the evolution of technology and increased use of video games, the need to understand how gaming affects individuals is imperative to assisting with those who struggle with problematic gaming behaviors. Video gaming has shown to have significant benefits including an increase in cognitive abilities, a way to relieve stress, and mood enhancement. However, problematic gaming behaviors (PGB) (i.e., uncontrollable gaming behaviors that impair functioning) may cause significant short and long-term problems that impact gamers throughout the lifespan if left untreated. There are critical gaps in the literature regarding how gaming impacts player functioning and how clinicians are managing …

Riverine And Estuarine Co2-System Studies On The West Coast Of Florida, Christopher S. Moore

USF Tampa Graduate Theses and Dissertations

Coastal and estuarine acidification impacts ecosystem health and economic resources and has both natural and anthropogenic components (Cai et al., 2021). Riverine input is one of several important factors that can influence acidification in coastal ecosystems. Rivers disgorging into coastal environments can create strong gradients, both spatial and temporal, that make accurate CO2-system characterization challenging. The work described in this thesis provides a baseline CO2-system study of four major rivers that flow into Tampa bay with an emphasis on seasonal change. As a second objective, this thesis examines the effects of HgII additions on CO2-system measurements in organic-rich estuarine waters. …

Charter School Management: Mo Interaction With Educational Inputs And Outcomes, Joseph C. Simmons

USF Tampa Graduate Theses and Dissertations

This study seeks to understand if the utilization of a management company has any interaction with the socioeconomic status (SES) of students served, the school’s academic performance, the percentage English Language Learners served, the percentage of highly qualified teachers per school site, the amount of student attrition/mobility, or the amount of disciplinary events. Ultimately this study seeks to determine the efficacy and utility of management organization utilization by studying inputs and outputs of Florida charter schools and disaggregating them based on utilization of Charter Management Organizations, Education Management Organizations, or their decision not to utilize a Management Organization. This study …

Narratives Of Success: How Honors College Newcomers Frame The Entrance To College, Cayla Lanier

USF Tampa Graduate Theses and Dissertations

Starting college marks an important period of transition for young people, as they manage multiple changes at once and begin to establish identities independent from their parents. The first year college student experience has been the focus of a great deal of academic research, as scholars and practitioners seek to discover the best way to support students and ensure they remain successfully enrolled at the university. However, very little of this research attends to the specific experiences of Honors College students. Further, a focus on the communicative process of transitioning, or organizational socialization, may add to what is currently known. …

Machine Learning For Species Habitat Analysis, Abigail Lavallin

USF Tampa Graduate Theses and Dissertations

Management and conservation initiatives will always be controlled by finite resources, whether financialor temporal. Understanding a species’ spatial ecology, and how its requirements vary across habitats and locations is key to a successful species management plan. During recent decades, it has been noted how many species populations have declined, despite conservation practices working to increase their numbers. The most prevalent impacts affecting fauna populations have come from anthropogenic change in the form of habitat loss and destruction, along with fragmentation, and global climate change. There is a clear need for management practices to now operate on an entire landscape instead …

Resilience And Health Outcomes Of Sexual Minority Middle-Aged And Older Adults, Christi L. Nelson

USF Tampa Graduate Theses and Dissertations

While research on lesbian, gay, and bisexual (hereafter referred to as sexual minority) middle-aged and older adults has increased over the past decade, there is still a critical need for more research on the health and resilience in this growing subpopulation. Research has provided evidence that sexual minority adults have an increased risk of negative health outcomes when compared to heterosexual adults. Research has also demonstrated possible resilience in sexual minority middle-aged and older adults; however, few studies have measured resilience in middle-aged and older adults. Gaining a better understanding of resilience in sexual minority adults may help identify modifiable …

Prosthesis And Orthosis Slip Detection Sensor And Method Of Use, Matthew Michael Wernke, Samuel Lon Phillips, Derek James Lura, Stephanie Lutton Carey, Rajiv V. Dubey

USF Patents

A device and method for measuring prosthetic or orthotic slip is presented. An optical sensor device is attached to the prosthesis or orthosis and measures the amount of relative motion between the prosthetic socket and the residual limb surface or between the orthosis and the affected body part. The sensor device is comprised of an optical sensor, a light source, a processing unit and a power source contained within a housing. A system for measuring multidirectional prosthetic or orthotic slip using the sensor device and automatically adjusting the fit of the prosthetic based on a determined threshold is also presented.

Using Developmental Evaluation For Clinical Faculty Development In A New Academic Consortium, Candice Kunkle

USF Tampa Graduate Theses and Dissertations

This study aims to support the development of the series, particularly this evaluation study addresses the faculty development program within a newly formed academic partnership between teaching and community physicians. The evaluation addresses the opportunities, assets, and strengthens in the programming while constructing it for the intended users. While this study supports the evolution of the new program, it jointly enhances the collective’s efforts and innovative initiatives within a new academic partnership among leaders and clinical faculty through its ongoing development. The learning and actions derived from the assessments were guided by analysis from needs assessments and interviews as part …

Experimental Challenge Of A North American Bat Species, Big Brown Bat (Eptesicus Fuscus), With Sars-Cov-2, Jeffrey S. Hall, Susan Knowles, Sean W. Nashold, Hon S. Ip, Ariel E. Leon, Tonie Rocke, Saskia Keller, Mariano Carossino, Udeni Balasuriya, Erik Hofmeister

KIP Articles

No abstract provided.

Cutr Connections [November 2021], Cutr

CUTR Newsletters

No abstract provided.

The Influence Of Intrinsic Motivational Forces On Consumers’ Product Purchase Intentions, Sumera Syed, Syed R. H. Shah, Fauziah S. Ahmad

Journal of Mediterranean Tourism Research

Food is perceived as the top most surviving need of humans since their existence. With the passage of time, this need has been further revolutionized with added requirements of safety and hygienic factors. Halal food having both of these factors, has gained popularity among both Muslims and non-Muslims consumers. Despite of ever increasing trend of Halal food consumption, the research to uncap this amazingly growing sector is still in its infancy stages. Interestingly, the role of intrinsic motivation in shaping up intention of the consumers for Halal food purchase is still not well explored. This study has addressed this untapped …

Internship And Job Acquisition Experiences Of Veterans In A Graduate Cybersecurity Degree Program, Stephen P. Gary

USF Tampa Graduate Theses and Dissertations

My purpose in this qualitative inquiry was to explore how student veterans experience cybersecurity internships and job acquisitions. I chose Schlossberg’s individual transition theory viewed through a constructivist lens to support the inquiry. Five participants, who completed graduate cybersecurity internships and acquired cybersecurity positions, provided responses. I employed semi-structured interviews to collect data from the participants. I engaged reflexive thematic analysis to guide my data analysis. Based on my analysis, I generated the following discoveries applicable to the inquiry: (a) opportunities for developing practical experience are regarded as essential for successful participation in an internship; (b) a flexible internship program …