Digital Commons Network^™

Fabrication And Non-Covalent Functionalization And Characterization Of Graphene-Based Devices On Novel Substrate Cadmium Trithiophosphate (Iv) — Cdps, Abayomi Omotola Omolewu

Graduate Theses and Dissertations

With graphene at the center of several application areas such as sensing, circuits, high-frequency devices for communication systems, etc., it is crucial to understand how the intrinsic properties of devices made from graphene and other materials like platinum and palladium nanoparticles affect the performance of such devices for the specific application area. Many graphene-based devices for different application areas have focused mainly on the material composition of the graphene-based devices and how it affects performance parameters for the specific application. However, it would be insightful to understand how the intrinsic electrical properties of the graphene devices for different applications affect …

Community College Faculty Members’ Experiences Using Instructional Technology: The Sudden Transition To Emergency Remote Teaching, Joy Bauer

Graduate Theses and Dissertations

The rapid spread of COVID-19 during the spring of 2020 warranted an unprecedented change as faculty were required to convert course content and quickly learn to use new instructional technology in order to prepare for emergency remote teaching. The purpose of this qualitative case study is to explore how faculty experienced this sudden disruption of learning and rapid transition to emergency remote teaching. How do we assist faculty in continuing to use innovative technology? What resources or support are needed to lessen faculty resistance to change? By applying Kübler-Ross’ Change Curve as an overarching model, the researcher seeks to show …

Technology Agency On Usage: Grounded Theory And Measurement Of Technology Induced Usage Behavior, Sandip Kumar Sarkar

Graduate Theses and Dissertations

Most of today’s software applications involve a dyadic interplay between human and technology agency. The use of algorithms driven by user can alter users' interaction patterns by affording them novel and relevant technology action possibilities. I argue that algorithmic activities and features embedded in apps can keep users on IT applications (apps) for longer periods of time. I refer to the behavior of interacting with the apps for longer time than planned as technology-induced excessive use. While practitioners are beginning to recognize characteristics of technology-induced excessive use, research on this topic is very limited. I used a multimethod approach to …

The Effects Of Side-Channel Attacks On Post-Quantum Cryptography: Influencing Frodokem Key Generation Using The Rowhammer Exploit, Michael Jacob Fahr

Graduate Theses and Dissertations

Modern cryptographic algorithms such as AES and RSA are effectively used for securing data transmission. However, advancements in quantum computing pose a threat to modern cryptography algorithms due to the potential of solving hard mathematical problems faster than conventional computers. Thus, to prepare for quantum computing, NIST has started a competition to standardize quantum-resistant public-key cryptography algorithms. These algorithms are evaluated for strong theoretical security and run-time performance. NIST is in the third round of the competition, and the focus has shifted to analyzing the vulnerabilities to side-channel attacks. One algorithm that has gained notice is the Round 3 alternate …

Quantum Dots In Two-Dimensional Tungsten Diselenide, Jeb Allen Michael Stacy

Graduate Theses and Dissertations

This work focuses on the investigation of single and double quantum dots in two-dimensional transition metal dichalcogenide tungsten diselenide (WSe_2) as a means to evaluate the valley degree of freedom as a potential qubit and ambipolar tungsten diselenide monolayers as single photon sources. Gate-defined quantum dots in monolayer and bilayer WSe_2 were fabricated and characterized. Single dot devices are gated from above and below the WSe_2 to accumulate a hole gas. Temperature dependence of Coulomb-blockade peak height is consistent with single-level transport. Excited-state transport in the quantum dot is shown for both monolayer and bilayer devices. Magnetic field dependence of …

The Buzz Behind Alcohol Advertising: A Study Of How Alcohol Advertisements On Social Media Impact Behavior, Alexis Morgan Campbell

Graduate Theses and Dissertations

Alcohol advertisements are known to be appealing and memorable, and several researchers have investigated what makes these advertisements so attractive. Several trends have emerged regarding the content within alcohol advertisements: themes of parties, celebration, and social success within television, magazines, and social media since the 1970s. Recently, several studies found that new themes in alcohol ads have been found to be popular, especially in social media advertisements (Campbell & Chung, 2022). The elaboration likelihood model (ELM) provides insight into why a person’s attitude could be more susceptible or why their behavior could be more easily influenced by certain types of …

Constraint-Aware, Scalable, And Efficient Algorithms For Multi-Chip Power Module Layout Optimization, Imam Al Razi

Graduate Theses and Dissertations

Moving towards an electrified world requires ultra high-density power converters. Electric vehicles, electrified aerospace, data centers, etc. are just a few fields among wide application areas of power electronic systems, where high-density power converters are essential. As a critical part of these power converters, power semiconductor modules and their layout optimization has been identified as a crucial step in achieving the maximum performance and density for wide bandgap technologies (i.e., GaN and SiC). New packaging technologies are also introduced to produce reliable and efficient multichip power module (MCPM) designs to push the current limits. The complexity of the emerging MCPM …

Is Artificial Intelligence A Double-Edged Sword? Insights From Three Essays On Its Impacts, Ankur Arora

Graduate Theses and Dissertations

"If we do it right, we might be able to evolve a form of work that taps into our uniquely human capabilities and restores our humanity. The ultimate paradox is that this technology may become a powerful catalyst that we need to reclaim our humanity." - John Hagel

Artificial intelligence (AI) is viewed as a disruptive technology that some executives believe will take over a lot of jobs. However, others believe that AI will bolster growth, improve business processes, and create new business opportunities. This dissertation focuses on the tension arising from such contrasting expected impacts of AI. Extant research …

Closing The Gender Gap In Entrepreneurship Education, Carolyn J. Rodeffer

Graduate Theses and Dissertations

Entrepreneurship education in higher education has been cited as a key strategy in filling the entrepreneurship talent pool, preparing students with the skills and confidence needed to start new ventures (Westhead & Solesvik, 2016). However, outcomes of entrepreneurship education for female students are less positive than for their male counterparts (Shinnar et al., 2012; Westhead & Solesvik, 2016; Wilson et al., 2007). Working within the frameworks of Bandura’s self-efficacy theory (1977), Azjen’s theory of planned behavior (1991), and Steele and Aronson’s stereotype threat theory (1995), this quantitative study utilized an experimental research design to assess the impact of role model …

A Memory-Centric Customizable Domain-Specific Fpga Overlay For Accelerating Machine Learning Applications, Atiyehsadat Panahi

Graduate Theses and Dissertations

Low latency inferencing is of paramount importance to a wide range of real time and userfacing Machine Learning (ML) applications. Field Programmable Gate Arrays (FPGAs) offer unique advantages in delivering low latency as well as energy efficient accelertors for low latency inferencing. Unfortunately, creating machine learning accelerators in FPGAs is not easy, requiring the use of vendor specific CAD tools and low level digital and hardware microarchitecture design knowledge that the majority of ML researchers do not possess. The continued refinement of High Level Synthesis (HLS) tools can reduce but not eliminate the need for hardware-specific design knowledge. The designs …

Wind Tunnel Modeling Of Jack Rabbit Ii Mock Urban Environment Gas Concentration Measurements, Sami S. Fares

Graduate Theses and Dissertations

The 2015 Jack Rabbit (JR) II field trials were conducted to improve understanding of the denser-than-air dispersion of chlorine in an urban environment. The field study involved five large-scale, outdoor release trials of chlorine in a mock urban environment (MUE) at Dugway Proving Ground (DPG). Various instrumentation was deployed, including JazTM Ultraviolet-Visible (UV-Vis) point sensors capable of measuring gas-phase chlorine concentration throughout the mock urban array.

The Chemical Hazards Research Center (CHRC) was tasked by the Chemical Security Analysis Center (CSAC) with the Mock Urban Wind Tunnel (MUWT) program to study the 2015 JR II Trials at wind tunnel scale. …

The Effects Of Consumer Loan Application Formats And Advertised Terms On Consumer Borrowing Decisions, Alicia M. Johnson

Graduate Theses and Dissertations

Consumers continue to demonstrate a willingness to accrue more debt. They are also more accepting of increased repayment risk via the acceptance of longer loan terms. Extant research on consumer borrowing consists primarily of experiments designed to assess consumer choices and understand how consumers evaluate loan attributes in relation to one another within consumer borrowing contexts (Kamleitner, Hoelzl, and Kirchler 2012; Ranyard et al., 2006). Thus, prior research examines consumer responses to loan information rather than the generation of loan parameters at the time of financing. With important implications for consumers, marketers of financial products, academic researchers, and federal regulators, …

Evaluation Of Single Phase Smart Pv Inverter Functions In Unbalanced Residential Distribution Systems, Darren Symonette

Graduate Theses and Dissertations

In the United States, smart PV inverters integrated with residential distribution systems are becoming a more common occurrence. With integration of smart PV inverters, power utilities are experiencing an increase of number of operations with regards to switched capacitor banks, voltage regulators and on load tap changers. These increases can lead to excess wear and tear on the devices causing power utilities to perform unwanted replacement and maintenance. However, smart PV inverters when controlled under specific functions can enable these inverters to provide reactive power and voltage control which in turn lowers the number of operations for switched capacitor banks, …

Full Disclosure: Model Uncertainty In Adjusting For Confounders, Dieudonne Dusenge

Graduate Theses and Dissertations

This study examines the role of knowledge about underlying causal relationships in classifying controls in order to mitigate omitted- and included-variable biases. Using simulations and accounting examples, the study shows that the researcher may not distinguish good and bad controls because the underlying causal relationships are unobservable, and remedying strategies (such as the relative timing of measurement) may not remove the uncertainty in the classification. Because of the uncertainty about which controls to use, two or more models will be credible as will the distinct estimates derived from them. Next, the study shows that the current standard practice of singling …

Examining The Intersection Of Cultural Competence And Classroom Management Self-Efficacy In Northwest Arkansas K-6 Teachers, Bonnie Culp King

Graduate Theses and Dissertations

This study aims to examine the relationship between Northwest Arkansas K-6 teachers’ cultural competence and classroom management self-efficacy. Multiple linear regression will be the quantitative approach used for analyzing K-6 teachers’ self-reported data. Valid and reliable instruments will be used to measure the concepts as operationalized for this study. Cultural competence will be measured using the “Multicultural Teaching Competency Scale” and classroom management self-efficacy will be measured using the “Teachers’ Sense of Efficacy Scale.” Demographic information will be collected to control for two variables: a teacher’s years of experience in teaching and race/ethnicity. Descriptive statistics and inferential statistics will be …

Media Ideologies And The Politics Of Digital Literacy: Discourses On Technology And Media In A Small School District In The U.S. Heartland, Chris Borntrager

Graduate Theses and Dissertations

This dissertation uses a discourse studies approach to investigate key communicative processes by which digital technology is given situated meanings within the institution of public education, including at the level of official discourse, administrative texts, and the spoken discourse of professional educators. The discursive processes under analysis, referred to here as “institutional media ideologies,” arguably function as discursive frameworks which, akin to tactics of management in organizations, constrain the further production of discourse in a particular professional domain, including through the codification of contextualization practices, participant roles, and the social meanings of practices implicating the use of digital technology. Furthermore, …

Church, Country, Culture: How Three Aspects Of Authoritarianism Predict Support For Donald Trump, Trenton Leslie

Graduate Theses and Dissertations

In the American bipartisan system, ideologies and beliefs create political views that sort voters between two groups. Political sorting increases polarization based on cultural preferences for an in-group that become ethnocentric views, which develop into ethnocentric cultural politics. I present an augmented concept of authoritarianism in America that encompasses sorting based on aspects of political belief, encapsulating sources of polarization and cultural attachments to political associations.

I develop the argument that authoritarianism is the result of political attachment to identities that feed off one another as individuals identify with an in-group, such as a party platform. My central theory is …

Fostering Queer Consciousness: Using Performative Art As An Activism Tool To Talk About The Lgbtq+ Community In The State Of Bahia, Brazil, Elisangela Pereira Brito

Graduate Theses and Dissertations

The current scenario in Brazil has attracted the attention of queer artists activists since violence against LGBTQI+ ranks the country as one of the most dangerous places for this community. This study examined how Black gay men have used performative art as activism to foster queer consciousness in the state of Bahia, Brazil. This research employed a qualitative approach, in-depth interview, by providing the unique experiences of three Black queer men artists. Results showed that the early and present experiences of the participants provided a single understanding of how the three Black queer men have used the principles of Pedagogy …

Evaluation Of Carbon Isotopic Chemostratigraphy Of The Cedar Mountain Formation Of Utah, Clayton Forster

Graduate Theses and Dissertations

The Lower Cretaceous rocks of Utah preserve the origin of a multitude of dinosaur taxa, spread of angiosperms on the North American continent, and evolution of marsupial and eutherian mammals. However, the timing of deposition of these rocks is not well understood and must be determined to understand climatic controls on these biological events. Estimates of the age of the Cedar Mountain Formation and its constituent members range from Late Jurassic to early Late Cretaceous. Understanding the timing of deposition of the Cedar Mountain Formation is critical to dinosaurian and associated taxa studies as well as paleoclimate reconstructions from within …

An Analytical Method To Detect And Quantify Ll-37 In An In Vitro Co-Culture Of Activated Thp-1 Cells And Staphylococcus Aureus, Staphylococcus Epidermidis, And Pseudomonas Aeruginosa, Victoria Hunter

Graduate Theses and Dissertations

Healthcare-associated infections (HCAIs) affect 1.7 million hospitalized patients each year, resulting in over 98,000 deaths and anywhere from $28.4 to $45 billion in treatment costs. Furthermore, it has been established that more than 80% of these infections are caused by biofilms While HCAIs can be bacterial, viral, fungal, or parasitic, there are between 12 and 17 species cause 80 to 87% of all HCAIs. Among the most commonly isolated microorganisms are Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus). Thus, biofilms are of importance not only due to their prevalence in HCAIs but also due to the increased antibiotic …

Essays On Performance Evaluation Of Portfolio Managers Of Mutual And Hedge Funds, Yuekun Liu

Graduate Theses and Dissertations

This dissertation consists of three essays focusing on the performance evaluation of portfolio managers of mutual and hedge funds. The first essay shows the performance of corporate bond mutual funds tends to be estimated using models with limited empirical validation. I test several models and find considerable variation in quality. That variation leads to meaningful differences with respect to the stylized facts of corporate bond fund performance. Using my preferred BENCH4 model—a novel model based on funds’ common benchmarks—I find average underperformance, substantial relative performance persistence, a small number of funds with positive alphas unattributable to luck, and positive alphas …

Validation Of Whole Genome Resequencing For Mapping The Genetics Of Ascites In Broilers And Viral Susceptibility In Layers, Katherine Pepper Lee

Graduate Theses and Dissertations

This dissertation focused on the efficacy and validity of whole genome resequencing (WGR) for fine mapping genetic determinants of particular traits in a given organism. Previously, our research group used WGR to identify haplotype blocks of single nucleotide polymorphisms associated with ascites resistance with some as strong candidates for use in marker-assisted selection (MAS). Chapter 2 discusses the completion of a MAS project through evaluation of ascites incidence as well as production traits of economic value to poultry producers. Thus, the MAS project also covered viability of this methodology in the industry. The MAS significantly reduced ascites incidence in broilers …

Characteristics Of Collegiate Ranch/Stock Horse Teams And Team Member Perceptions Of Benefits Of Participation, Ashton Rein Williams

Graduate Theses and Dissertations

The purpose of this study was to describe characteristics of collegiate ranch horse teams and team member’s perceived benefits from participation. A lack of research and literature on this category of competition, that is rapidly growing in popularity, is the problem that this study was designed to solve. In recent years, students have begun choosing where to further their education based upon their participation on a ranch horse team. With collegiate ranch horse teams being prevalent, there is a need for a simplified presentation of facts about the teams that can be referenced. This study will be used to guide …

Seeing Red, Seeing Blue? Exploring The Influence Of Political Signals On Investor Perceptions And Behavior, Sergei Kolomeitsev

Graduate Theses and Dissertations

In the current political climate, understanding political identity alignment or misalignment between stakeholders is critical. Indeed, today’s climate of political polarization likely not only affects political behavior or social interactions but is likely to spill over into resource allocation behavior by groups and individuals. The purpose of this dissertation is to explore the influence of political signals between the investor and the entrepreneur in shaping an investor’s funding decision. Further, while the funding outcomes relating to political signals are critical, it is likewise imperative to advance our understanding of the mechanisms shaping investor perceptions. Thus, this dissertation investigates key mechanisms …

Characterization Of Genetic Pathways Involved In Resistance To A Novel Antifungal Peptide, Kayla L. Haberman

Graduate Theses and Dissertations

Antibiotic resistance is increasing prevalence, particularly in Candida glabrata. This opportunistic pathogen is closely phylogenetically related to Saccharomyces cerevisiae; however, its characterization is limited. C. glabrata is only second to Candida albicans as a fungal pathogen in immunocompromised patients. Commonly resistant to azoles, the most common fungal therapy, it has become costly and challenging to treat. A histatin 5 derived antifungal peptide, KM29, has a high degree of efficacy in Candida species and S. cerevisiae. The objective of this work is to advance our understanding of the mechanism of action of KM29 against C. glabrata. Previous work in the lab …

Exploring The Divergent Social Dimensions Of Ceo Narcissism On Internal Firm Outcomes, Andrew Brandon Blake

Graduate Theses and Dissertations

In this study, I move away from the common clinical conception of narcissism in management to a novel two-dimensional concept and measurement of narcissism. Because these dimensions are shown to have divergent motives, goals, social strategies, and behaviors, I theorize that these differences in narcissism will have diverging effects on the firm. Then, I shift the conceptual focus of CEO narcissism research from the CEO as an agentic decision-maker seeking external praise for firm consequences to an implicit social strategist who prioritizes short-term interpersonal interactions in service of narcissistic supply. I examine four internal outcomes likely to be influenced by …

Gender Neutral Parenting: Raising A Generation Outside The Gender Binary, Toni Noelle Martinez

Graduate Theses and Dissertations

In the United States, the social and cultural reality remains organized around the gender binary. The binary legitimizes itself on the widely held belief that gender is determined by biology and, therefore, is “natural.” By exploring and firmly placing gender as a cultural construct, this thesis looks at the possibilities of fracturing the binary. Borrowing from Stephan Hirschauer (1994) and Judith Butler’s (2004), this thesis theorizes what a gender neutral world could look like and examines how Gender Neutral Parents contribute toward a gender revolution. Gender Neutral Parents, a community that is mostly found online, represent a small group that …

Three Essays On The Effect Of Scarcity On Consumer Behavior And Firm Performance, Pritosh Kumar

Graduate Theses and Dissertations

Studies have consistently shown that scarcity plays a significant role in shaping decision making. Under conditions of scarcity, individuals tend to behave impulsively, and firms are inclined to redefine their set of priorities and strategies, ultimately impacting their performance. Considering the scant investigation of the mechanisms and effects of scarcity in the supply chain management literature, this dissertation aimed to investigate the roles of scarcity in shaping consumer behavior and firm strategy in three essays.

The first essay investigated the effect of post-stockout scarcity disclosures on consumer responses to stockouts through the lens of product scarcity and signaling theory. The …

Can I Choose My Offer: How Choice On Sales Offer Impacts Consumer Purchase Decision?, Atmadeep Mukherjee

Graduate Theses and Dissertations

While making a purchase decision consumers tend to evaluate various assortments. Most of the research in choice literature has focused on the impact of focal product assortment size and consumer preferences. With the advent of a novel sales promotion strategy, where consumers are provided with a choice to select an offer, this dissertation investigates the effect of choice on sales offer, specifically free offers on purchase evaluations. Building on choice literature and sales promotion this dissertation argues that choice on sales offers, particularly free offers, will have a positive effect on purchase evaluations and the effect gets accentuated under certain …

Implementing Food Pantry Nutrition Policies: Perspectives From The Field, Jessica Vincent

Graduate Theses and Dissertations

The charitable food system includes food pantries and are often used by individuals and households who are food insecure (Kuhns & Norotny, 2021; Seligman & Berkowitz, 2019; Sangye, 2013). Adults with any level of food insecurity have a 43% to 53% greater risk of developing a chronic disease than those who are food secure. Those who are food secure have a 37% risk of developing a chronic disease (Gregory & Coleman-Jenson, 2017). For this reason, efforts are being made from state and federal levels to focus on nutrition security, rather than only food security, by increasing the percentage of nutrient …