Electronic Thesis or Dissertation

This qualitative grounded theory study updated the framework, including a definition, of Appreciative Administration. Bloom et al. (2013) first introduced the concept of Appreciative Education in a New Directions for Student Services article. Appreciative Education’s framework is harnessed by the power of the organizational development theory of Appreciative Inquiry (Cooperrider & Srivastva, 1987), the relationship-building theory-to-practice framework of Appreciative Advising (Bloom & Martin, 2002; Bloom et al., 2008), and an Appreciative Mindset. Bloom and McClellan (2016) coined the phrase Appreciative Administration to describe how higher education administrators could lead their organizations by harnessing the power of Appreciative Education. To date, there is no research on how higher education administrators are using Appreciative Education in their administrative practices.
The purpose of this grounded theory study was to examine how higher education administrators infuse the Appreciative Education framework into their daily administrative practices. The study included 21 professionals, who met the following criteria: (1) had at least one full-time person reporting to them; (2) had participated in a formal Appreciative Education training. The experiences of the 21 study participants were captured through semi-structured 60-minute Zoom interviews. Subsequently, eight of the 21 participants participated in a focus group via Zoom to provide feedback on the study’s initial themes and sub-themes. Data was analyzed through three rounds of coding: (1) initial coding, (2) focused coding, and (3) theoretical coding.

Hepatocellular carcinoma is currently one of the most fatal cancers in the world. The routine treatment for this type of cancer consists of surgery, chemotherapy, and finally radiation therapy. Recent advancements in technology have enabled us to deliver highly conformed dose to planning target volume. Two of these methods are Intensity modulated Radiation Therapy (IMRT) and Stereotactic Body Radiation Therapy (SBRT). The difference between these two methods is that in the SBRT high radiation dose per fraction is delivered, but smaller number of fractions which renders better tumor control probability. However, better tumor control comes at the price of complications and radiation induced liver damage.
In this work, we compare the outcome of radiation with regards to the probability of radiation damage to the liver after IMRT and SBRT. For this purpose, we analyzed 10 anonymized patients’ data with liver cancer, and we made two similar treatment plans for them. The difference in two plans is dose per fraction and total dose. After optimizing the treatments and calculating the dose volume histogram, we found the effective volume of the liver being irradiated. Finally, this effective volume and the corresponding dose were used to show that SBRT has the advantage of better tumor control probability at the cost of higher probability of complications.

The nature and existence of free will and its relationship with moral reasoning and behavior have been debated by philosophers, theologians, and scientists for centuries, with no resolution in sight. More recently, proponents of “Experimental Philosophy” (Nichols, 2011) have sought to bypass the challenges of ontology by applying the tools and methods of the behavioral and mental sciences to the study of issues such as the structure and role of free will beliefs (FWBs) in prosocial and moral reasoning and behavior. One of these approaches involves the use of experimental manipulation of FWBs via text passages, statements, articles, and videos endorsing or refuting free will, to measure its effects on moral attitudes and behaviors such as conformity, punishment, and cheating behaviors (e.g. Alquist et al., 2013; Shariff et al., 2014; Vohs & Schooler, 2008). The present study, a videoconference-based online study developed during the COVID-19 pandemic, seeks to shed further insight into the role of FWBs in moral behavior by combining experimental manipulations of FWBs and descriptive moral norms (moral behaviors we observe in the world around us). We manipulated FWBs by randomly assigning participants to read and contemplate 15 pro- or anti-free will statements, and manipulated moral norms by pairing participants with a research confederate pretending to be a second participant but randomly assigned to behave either honestly or dishonestly in a tracing task involving unsolvable shapes, which participants were led to believe they could earn a prize for solving.

Ocean current turbines (OCT) convert the kinetic energy housed within the earth’s ocean currents into electricity. However, due to the harsh environmental conditions that these turbines operate in, their system performance naturally degrades over time. This degradation correlates to high operation and maintenance (O&M) costs, which necessitates the need for robust condition monitoring and fault detection (CMFD). Unfortunately, OCT operational data is not publicly available in large and/or diverse enough quantities to develop such frameworks. Therefore, from an industry-wide perspective, the technologies needed to harvest this energy source are still in their infancy.

In 1628, the English Parliament demanded that King Charles I sign the Petition of Right, causing the English Civil War. This war led to laws that legitimized slavery and the impressment of Anglo sailors and left behind an insurrectionary ideology that American colonists adapted during the American Revolutionary War. After the war, this ideology inspired the Constitution and later inspired slave revolts, and sailor mutinies for civil liberties won during the Revolution. As the capitalist economy grew and ensnared the new nation, this ideology entered reformer communities. American law relied on lawyers, jurists, and politicians to balance liberty, property, and a racial divide. White sailors did not face racialized slavery but experienced exploitation through American law. This relationship's intersection of economy and identity helps explain why sailors' rights helped reform American law and emancipate the slave.

This thesis investigates the role of myth in Hulu’s The Handmaid’s Tale. Through an analysis of concepts such as the body and nation, I investigate the mythical underpinnings of gender, race, social reproduction, and capitalism in Gilead as well as the veritable history of oppression and imperialism in the United States that informs the Gileadean imaginary. I interrogate myth’s utility in creating nations and worlds, real or imagined, and the mechanisms of myth that make this possible. Using the works of authors such as Roland Barthes, Kalindi Vora, Achille Mbembe, and others, I read The Handmaid’s Tale series as a text that reveals how truth can be distorted by myth but can be demythologized to belie intention, historically contextualize, and inspire resistance. Written in the midst and wake of the overturning of Roe v. Wade, this thesis is also a meditation on auto-ethnographic and textual resistance.

The overall goal of the present study was to examine the data from several research studies to aid in understanding sex, ASD, and its subcomponents using the Gilliam Autism Rating Scale or GARS-2, an ASD diagnostics questionnaire, and to explore the relation between facial emotional recognition, sex, and ASD. We did not find a significant difference in the GARS-2 overall scores, nor was there a difference in the GARS-2 subscale scores when examining the scores of boys and girls (both ASD and TD). Our findings suggest the GARS-2 is an excellent choice in diagnostic measures and does not appear to have a sex bias. That being said, research into ASD measures is much needed. This is a significant issue as such research does not consider the potential different symptomology of girls with ASD. The issue at the heart of this study is that for so long research on ASD has been limited to studying samples of boys with the disorder (Lundstrom et al., 2019).

Groundwater is a valuable resource essential for residential, agricultural, commercial, and environmental water supply needs in Florida. Understanding drivers of groundwater level trends and time series forecasting in vulnerable areas provides water managers with timely information for effective resource protection. This study evaluates groundwater level trends in the surficial, intermediate and Floridan aquifer systems in Central and South Florida at 106 unconfined and confined aquifer wells using 15 to 27 years of data through 2019.
Wells were clustered into relatively homogenous groups based on spatial characteristics using the k mean clustering method. Land surface and top of aquifer elevations as well as groundwater level ranges were key factors. Distance to the coast was also important for surficial aquifer clustering, while proximity to water supply wells influenced Mid-Hawthorn aquifer (MHA) results. Principal component analyses (PCAs) were performed using rainfall, temperature, actual evapotranspiration, El Niño Southern Oscillation, and population data and regressed against average monthly groundwater levels for each cluster. This study is the first of its kind PCA using variables impacting groundwater levels in South Florida. Sandstone aquifer PCAs correlated well with groundwater levels. When compared with multiple linear regression, PCA results had similar correlation. However, the drivers of groundwater level trends identified by each method for the MHA and Upper Floridan aquifer (UFA) differed. Seasonal Kendall trend tests indicated 12 surficial aquifer wells had trends related to changes in land use and decreased usage. MHA trends were related to exploitation or a shift in water source usage. A regional increasing trend exists in the UFA in South Florida.

The potential of plastic waste-derived activated carbon was investigated for the removal of carbon dioxide and hydrogen sulfide from biogas. Activated carbon materials were prepared by carbonizing plastic waste followed by activation via microwave heating after mixing with potassium hydroxide. Samples were tested using thermogravimetric analysis to determine the equilibrium uptake of carbon dioxide. Samples were modified with tetraethylenepentamine and diethanolamine however, sample texture produced was deemed unusable for further testing due to operational concerns. Adsorbent screening was conducted in conditions mimicking that of biogas at a temperature of 40 °C and 30% carbon dioxide in nitrogen. Performant samples were identified as those achieving uptakes greater than 3 wt.%. The best performing sample achieved an uptake of 3.57 wt.% and maintained 99% of its uptake during cycling. Column breakthrough experiments demonstrated that the final candidate achieved complete removal of both carbon dioxide and hydrogen sulfide, suggesting viability for larger scale biogas purification.

The elevated energy demand and high dependency on fossil fuels have directed researchers’ attention to promoting and advancing hydraulic fracturing (HF) operations for a sustainable energy future. Previous studies have demonstrated that the particle suspension and positioning in slick water play a vital role during the injection and shut-in stages of the HF operations. A significant challenge to HF is the premature particle settling and uneven particle distribution in a formation. Even though various research was conducted on the topic of particle transport, there still exist gaps in the fundamental particle-particle interaction mechanisms. This dissertation utilizes both experimental and numerical approaches to advance the state of the art in particle-particle interactions in various test conditions. Experimentally, the study utilizes high-speed imaging coupled with particle tracking velocimetry (PTV) and particle image velocimetry (PIV) to provide a space and time-resolved investigation of both two-particle and multi-particle interactions during gravitational settling, respectively.