Digital Commons Network^™

Campus Mental Health Service Use Among Female Survivors Of Sexual Violence: An Interpretative Phenomenological Analysis, Hannah Coffman

Graduate Theses and Dissertations

Description: Despite the increase in resources to address the alarming rates of collegiate sexual violence (SV), survivors consistently do not disclose or seek mental health treatment from campus supports (Halstead et al., 2017). The purpose of this study was to understand the lived experiences of women who survived SV during college.

Method: Seven women who experienced SV during college completed a series of two semi-structured interviews using a HIPAA-compliant, web-conferencing software (Seidman, 2013). The interviews were transcribed verbatim and analyzed using an interpretative phenomenological analysis (IPA) framework (IPA; Smith, 2004; Smith et al., 2009). A six-step data analysis procedure identified …

What Makes A Lie? A Novel Study Investigating The Difference Between Deliberate Lies And Honest Mistakes, Andrew Christopher Provenzano

Graduate Theses and Dissertations

Previous research on lie detection suggests that people use cues to deception to make a true-false judgment about a statement. However, no prior research has investigated what factors cause others to classify known false statements as an intentional lie or an "honest" mistake. This dissertation reports two studies that sought to answer this question. Experiment 1 consisted of a diary study where participants reported false statements and then described their reason for classifying the statements as a deliberate lie or honest mistake. In Experiment 2, participants completed a semi-structured interview where they described various false statements and why they classified …

Medical Error Disclosure: A Content Analysis Of State Legislation, Teresa Kathleen Sparks

Graduate Theses and Dissertations

Medical error is a public health problem in the United States (U.S.), causing approximately 250,000 hospital deaths per year. Health care leaders and policy-makers have identified medical error disclosure as one of many viable evidence-based solutions to address the problem of medical error – leading to increased transparency in health care, improved patient outcomes, potential medical malpractice cost reduction, and decreased health care provider distress and turnover. Unfortunately, health care providers are often hesitant to practice disclosure and are not required to do so in most U.S. jurisdictions. A qualitative inquiry using content analysis was conducted to understand the language …

Monte-Carlo-Based Analysis Of Traffic Flow For Urban Air Mobility Vehicles, Sara Ghayouraneh

Graduate Theses and Dissertations

The research conducted in this dissertation is focused on developing a simulation tool that can predict the traffic flow patterns of the Urban Air Mobility vehicles to alleviate some of the challenges related to their traffic management. First, an introduction to the concept of Urban Air Mobility is given, the usage of Automatic Dependent Surveillance-Broadcast systems for Urban Air Mobility vehicles is suggested and dynamic addressing concept is introduced as an answer to a part of air traffic management and address scarcity challenge for Urban air Mobility vehicles. Next, in order to simulate the traffic flow patterns of the Urban …

Computational Modeling Of Black Phosphorus Terahertz Photoconductive Antennas Using Comsol Multiphysics With Experimental Comparison Against A Commercial Lt-Gaas Emitter, Jose Isaac Santos Batista

Graduate Theses and Dissertations

This thesis presents computational models of terahertz (THz) photoconductive antenna (PCA) emitter using COMSOL Multiphysics commercial package. A comparison of the computer simulated radiated THz signal against that of an experimentally measured signal of commercial reference LT-GaAs emitter is presented. The two-dimensional model (2D) aimed at calculating the photoconductivity of a black phosphorus (BP) PCA at two laser wavelengths of 780 nm and 1560 nm. The 2D model was applied to the BP PCA emitter and the LT-GaAs devices to compare their simulated performance in terms of the photocurrent and radiated THz signal pulse. The results showed better performance of …

Synthesis And Performance Testing Of Ecm Fiber Scaffolds, Cassandra Reed

Graduate Theses and Dissertations

The progression of regenerative medicine has advanced the treatment of multiple illnesses and injuries throughout the years. A good example of the benefits of this research is the work that has gone into volumetric muscle loss (VML), where more than 20% of the muscle is loss. Skeletal muscle makes up 40% of the human body so a loss of that size greatly diminishes the strength, the flexibility, physiology, and quality of life of the injured individual. For that reason, various techniques are used to counteract the loss of structure and innate cellular signaling in order to circumvent that from happening. …

Microfabrication And Electrochemical Characterization Of A Novel Su-8 Probe With An Array Of Individually Addressable Electrodes Suitable For Redox Cycling Experiments In Ultra-Small Volumes, Mahsa Lotfi Marchoubeh

Graduate Theses and Dissertations

Redox cycling is an electrochemical technique that utilizes closely spaced generator and collector electrodes to cycle reversible redox species between their oxidative states. With advantages in signal amplification, selectivity of species based on their electrochemical reaction mechanism, and limited or no background subtraction, this technique is well suited for selective detection of important electrochemically active molecules such as dopamine at basal or slowly changing levels.

Miniaturized medical devices have become an area of great interest for measurement of chemicals in limited volumes with low concentrations or in sensitive tissues. A probe on a polymeric SU-8 substrate with suitable dimensions and …

Tale Of The Tape: A Study Of Two-Year College Student-Athletes, Dustin Grover

Graduate Theses and Dissertations

Two-year athletic programs bring many unique elements to a college campus, many of which help to create a comprehensive student experience. Quantifying this experience is difficult as little data has been collected historically on two-year college athletes. The purpose of conducting this study was to create a profile of a rural two-year college student-athlete and to utilize the data to determine if participation in athletics had any effect on student success measures. This study will help college administrators build a better understanding of the two-year college student-athlete, aiding their decision-making regarding the prioritization of college athletics on their campuses. These …

Naturalistic Decision Making In First Sales Calls: A Narrative Study Of Experienced Technical Sales Professionals, Douglas Williams

Graduate Theses and Dissertations

The first conversation between business-to-business sellers and new customers comes with the potential for both opportunity and risk. Sellers spend substantial effort gaining the right to engage in a first call with a potential customer. This study fills a gap in the literature by exploring the role of Naturalistic Decision Making (NDM) and how it impacts the way experienced technology sales professionals navigate first conversations with new customers. NDM explores how experienced professionals make decisions in high-stakes, real world situations that are ambiguous, time-pressured, and have poorly defined goals. While NDM studies have been performed in other professional disciplines, none …

Impact Of Covid-19 On The Severe Acute Malnutrition Admissions Among Children Under 5 Years Of Age Seeking Nutrition Services In Afghanistan, Sahar Sayedy

Graduate Theses and Dissertations

The purpose of the study was to assess the impact of COVID-19 on the number of admissions of severe acute malnutrition among children under 5 years of age seeking nutrition services in Afghanistan especially in the provinces where the prevalence of COVID-19 was high, for the period of February – September 2020. The study used comparison and analysis of secondary datasets of the Integrated Management of Acute Malnutrition – a national program for detection and management of moderate and severe acute malnutrition in the country.

This study analyzed the association between COVID-19 cases and severe acute malnutrition (SAM) admissions of …

Privacy-Preserving Cloud-Assisted Data Analytics, Wei Bao

Graduate Theses and Dissertations

Nowadays industries are collecting a massive and exponentially growing amount of data that can be utilized to extract useful insights for improving various aspects of our life. Data analytics (e.g., via the use of machine learning) has been extensively applied to make important decisions in various real world applications. However, it is challenging for resource-limited clients to analyze their data in an efficient way when its scale is large. Additionally, the data resources are increasingly distributed among different owners. Nonetheless, users' data may contain private information that needs to be protected.

Cloud computing has become more and more popular in …

Design And Validation Of A High-Power, High Density All Silicon Carbide Three-Level Inverter, Zhongjing Wang

Graduate Theses and Dissertations

Transportation electrification is clearly the road toward the future. Compared to internal combustion engine, the electrified vehicle has less carbon-dioxide emission, less maintenance costs and less operation costs. It also offers higher efficiency and safety margin. More importantly, it relieves human’s dependence on conventional fossil energy. In the electrification progress, the revolution of electric traction drive systems is one of the most important milestone. The traction system should keep high efficiency to avoid performance reduction. Moreover, the motor drive should be designed within limited space without sacrificing output power rating. Based on the road map from US Drive Electrical and …

A Computational Study Of Radiation Damage In Bilayer Silicon-Gold Structures, Cameron Hopper

Graduate Theses and Dissertations

Irradiation from sources such as nuclear reactors bombard materials with neutrons and heavy ions. The primary consequence of this irradiation is the displacement of atoms from their atomic structure. As the structure becomes damaged, the mechanical properties can change. Eventually, this can result in a failure due to embrittlement. This type of damage is hard to detect and can result in sudden, unexpected failure. Therefore, focusing on managing the consequences of irradiation has been a heavily researched topic. To manage irradiation, the focus is primarily to manage the voids and interstitials that appear during irradiation. Grain boundaries and amorphous regions …

A Multicase Study Exploring The Motivation Of Support Staff In The Office Of The Registrar, April M. Martin

Graduate Theses and Dissertations

Although a large body of research exists within higher education that focuses on factors related to faculty motivation and student motivation, there is limited research concentrated on the motivation of college and university administrative staff. This study examined how job duties, work processes, elements of the work environment, and leadership styles are related to employee motivation, specifically the motivation of front-line support staff who work in the Office of the Registrar. Additionally, I aimed to identify any disconnect between what support staff need and want from supervisors in the Office of the Registrar pertaining to motivation and supervisors’ behavior to …

The 'I' In First-Person Thought And What Is Meant By Self-Knowledge, Aaron Morris

Graduate Theses and Dissertations

There has been a great deal of disagreement over what exactly it is that is being referenced by the first-person pronoun, ‘I.’ Immanuel Kant believed the ‘I’ associated with a thinking subject is just a formal representation of the substantially existing subject. This raises the question about whether or not ‘I’ is actually a referring expression? In this paper I explore two accounts from both sides of the debate which opens up a dialectical space for determining a positive answer for this question. On the one hand, ‘I’ is said to be a referring term for the speaker or utterer …

Deployment Policies To Reliably Maintain And Maximize Expected Coverage In A Wireless Sensor Network, Nicholas T. Boardman

Graduate Theses and Dissertations

The long-term operation of a wireless sensor network (WSN) requires the deployment of new sensors over time to restore any loss in network coverage and communication ability resulting from sensor failures. Over the course of several deployment actions it is important to consider the cost of maintaining the WSN in addition to any desired performance measures such as coverage, connectivity, or reliability. The resulting problem formulation is approached first through a time-based deployment model in which the network is restored to a fixed size at periodic time intervals. The network destruction spectrum (D-spectrum) has been introduced to estimate reliability and …

The Characterization Of Angiopoietin-Like Protein 4 Overexpression In Triple Negative Breast Cancer, Jodi Simeon

Graduate Theses and Dissertations

Triple Negative Breast Cancer (TNBC) is highly invasive and metastatic with approximately 15% of patients developing liver metastases. The primary treatment of metastatic TNBC is chemotherapy, however, there is an increased chance of resistance to this therapeutic technique. If Breast Cancer Liver Metastasis (BCLM) is left untreated most patients survive only 4 to 8 months with a very rare 5-year survival. Therefore, it is imperative to analyze markers and molecular pathways that TNBC cells use to progress, invade, and metastasize to the liver. The aim of this study was to examine the overexpression of angiopoietin-like 4 (ANGPTL4) in TNBC cells …

Enabling The “Easy Button” For Broad, Parallel Optimization Of Functions Evaluated By Simulation, Andrew Gibson

Graduate Theses and Dissertations

Java Optimization by Simulation (JOBS) is presented: an open-source, object-oriented Java library designed to enable the study, research, and use of optimization for models evaluated by simulation. JOBS includes several novel design features that make it easy for a simulation modeler, without extensive expertise in optimization or parallel computation, to define an optimization model with deterministic and/or stochastic constraints, choose one or more metaheuristics to solve it and run, using massively parallel function evaluation to reduce wall-clock times.

JOBS is supported by a new language independent, application programming interface (API) for remote simulation model evaluation and a serverless computing environment …

Quantitative Set-Based Design For Complex System Development, Nicholas J. Shallcross

Graduate Theses and Dissertations

This dissertation comprises a body of research facilitating decision-making and complex system development with quantitative set-based design (SBD). SBD is concurrent product development methodology, which develops and analyzes many design alternatives for longer time periods enabling design maturation and uncertainty reduction. SBD improves design space exploration, facilitating the identification of resilient and affordable systems. The literature contains numerous qualitative descriptions and quantitative methodologies describing limited aspects of the SBD process. However, there exist no methodologies enabling the quantitative management of SBD programs throughout the entire product development cycle. This research addresses this knowledge gap by developing the process framework and …

Characteristics Of Face-To-Face Communications In Agriculture Marketing And Customer Service, Ashlyn Ussery

Graduate Theses and Dissertations

As communication forms evolve, it is important for business leaders to not only follow the trends, but to be data-driven and make calculated decisions that are beneficial for their businesses. In this qualitative study, the researcher sought to describe how Arkansas Farm Bureau Federation used face-to-face and computer-mediated communication methods to communicate as an organization and the value their employees and members place on each communication method. Uses and Gratifications theory was used to guide this research and evaluate the results. This theory is unique in that it does not describe the effect media has on people, like many human …

A Time-Course Characterization Of Muscle Function And Mitochondrial Markers During Colorectal Cancer-Induced Cachexia In Tumor-Bearing Male Mice, Ana Cabrera Ayuso

Graduate Theses and Dissertations

Cachexia is a multisystemic and multifactorial syndrome prevalent in cancer patients. It is clinically defined by involuntary loss of >5% weight in a six-month window, despite nutritional interventions. A negative energy balance characterizes cancer cachexia (CC), it is associated with weakness and fatigue in skeletal muscle. Impaired muscle function is associated with lower quality of life in cancer patients. Defects in mitochondrial function are strongly associated with muscle wasting. This study explored muscular contractile function and mitochondrial quality control (MQC) markers in soleus, gastrocnemius, and tibialis anterior (TA) muscles of C26-induced male tumor-bearing mice during a 25-day time course. It …

Defining Marriageability: Black Men Graduate Student’S Definition Of A Marriageable Man, Gabriel Evans

Graduate Theses and Dissertations

The project aims to explore Black graduate men's conception of the term Marriageable Man. Traditionally, men's marriageability has been defined by their ability to attain consistent income and or in their ability to provide for a wife or a family (Johnson and Loscocco 2015; King and Allen 2009a). However, there is a need for more holistic marriageability measurements due to the evolution of marriage practices and desires (Coontz 2006, 2007). Marriageability is contextualized through classed definitions and presents different requirements for one's SES standing (Bridges and Boyd 2016). This project seeks to add to the literature by exploring Black men …

Vulnerability To And Protection Against Covid-19 Fear, Threat, And Worry, Marsha Kim Huh

Graduate Theses and Dissertations

Drawing from a sample of 10,368 adults living in the U.S., the current study examines the role of social and psychological resources in lowering COVID-related fear, threat, and worry, controlling for a number of social vulnerabilities (e.g. gender, race/ethnicity, and presence of children). The impact of social location, particularly in regards to race, and how one accesses and/or utilizes social and psychological resources is also examined through disaggregated regression models. Results demonstrate that some social and psychological resources impact COVID-specific distress (fear/threat/worry), but depending on the resource, relationships vary in direction and significance. The strength of social ties and mastery …

Rethinking Immigration Justice: Mexican Community Activism While Serving Migrants In Transit., Angélica Villagrana

Graduate Theses and Dissertations

This research study focuses on the externalization of migration control and its effects on staffmembers of community organizations that serve Central American migrants in transit. While literature on migration enforcement places emphasis on border control and internal removals, research on new forms of migration enforcement has paid little attention to the extension of border control beyond physical borders. This study employed an ethnographic approach to address the overarching question of how community organizers have responded to the adoption of US practices on extraterritorial migration control by the Mexican government while serving migrants in transit. Data collected provide empirical evidence contextual …

Unintended Consequences Of Public Policy And Government Regulation On Supply Chain Structure, Conduct, And Performance, Jonathan Phares

Graduate Theses and Dissertations

Supply chains, and the firms within them, change their behaviors in response to industry conditions so they can provide efficiency, effectiveness, strategic enablement, and customer utility. Social and economic policies enacted to promote social welfare by correcting market failures can alter these conditions. While these policies may serve their intended purposes, they may also create unintended consequences that may make managing logistics, operations, and supply chains more challenging. This dissertation contributes to the nascent body of knowledge concerning the intended and unintended consequences of policy on supply chain management by examining three unique contextual settings using different methodologies and levels …

Academic Librarian Experiences And Perceived Value Of Oer Professional Development: A Case Study, Elaine Thornton

Graduate Theses and Dissertations

Academic librarianship is a constantly changing profession. Open education librarianship has developed as an area of specialization. Effective continuing professional development (CPD) for learning about open educational resources (OER) is needed to meet academic librarians' knowledge and training needs engaged in this area. This narrative case study examines the experiences and perceptions of academic librarians who completed a structured open education leadership program. Interviews were conducted with a selection of program fellows to capture the personal perspectives of the program participants. These interview narratives were transcribed and, alongside program curriculum and participant projects, utilized to answer the study's research questions …

The Co-Regulatory Effects Of Emotionally Focused Therapy, Julia Conroy

Graduate Theses and Dissertations

Mental health literature emphasizes the necessity of expanding emotional regulation to improve symptomology of a variety of mental health disorders. Coregulatory experiences have been shown to expand individual emotional regulation and are more likely in relationships with secure attachment. Emotionally Focused Therapy (EFT) is focused on developing secure attachment between partners. This study examined the coregulatory effects of EFT with a single couple over the course of couples’ counseling. The participating couple received eight couples’ counseling sessions from a clinician who is a certified EFT trainer, supervisor, and therapist while having their heart rate, electrodermal activity, and skin temperature taken …

Towards A Large-Scale Intelligent Mobile-Argumentation And Discovering Arguments, Controversial Topics And Topic-Oriented Focal Sets In Cyber-Argumentation, Najla Althuniyan

Graduate Theses and Dissertations

User-generated content (UGC) platforms host different forms of information, such as audio, video, pictures, and text. They have many online applications, such as social media, blogs, photo and video sharing, customer reviews, debate, and deliberation platforms. Usually, the content of these platforms is provided and consumed by users. Most of these platforms, mainly social media and blogs, are often used for online discussion. These platforms offer tools for users to share and express opinions. Commonly, people from different backgrounds and origins discuss opinions about various issues over the Internet. Furthermore, discussions among users contain substantial information from which knowledge about …

Distributed Modeling Approach For Electrical And Thermal Analysis Of High-Frequency Transistors, Amirreza Ghadimi Avval

Graduate Theses and Dissertations

The research conducted in this dissertation is focused on developing modeling approaches for analyzing high-frequency transistors and present solutions for optimizing the device output power and gain. First, a literature review of different transistor types utilized in high-frequency regions is conducted and gallium nitride high electron mobility transistor is identified as the promising device for these bands. Different structural configurations and operating modes of these transistors are explained, and their applications are discussed. Equivalent circuit models and physics-based models are also introduced and their limitations for analyzing the small-signal and large-signal behavior of these devices are explained. Next, a model …

Geolocation Of Monitoring Wells Using Small Unmanned Aircraft Systems, Joel Deyoung

Graduate Theses and Dissertations

Groundwater monitoring wells are commonly installed on a property as part of an environmental investigation to observe hydrological subsurface conditions, facilitate the collection of groundwater samples, and predict the flow of groundwater across a site. In addition to their installation, monitoring wells should be surveyed or mapped as accurately as possible. Traditional surveying techniques have employed the use of global navigation satellite systems (GNSS) technologies or other surveying equipment. A common surveying approach is to use real-time kinematic (RTK) GNSS to accurately measure the coordinates of each monitoring well on the site.In recent years, drones, or small unmanned aircraft systems …