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ASU Electronic Theses and Dissertations


This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.

In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.

Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.


Resource Type
Date Range
2010 2020


The intracellular motility seen in the cytoplasm of angiosperm plant pollen tubes is known as reverse fountain cytoplasmic streaming (i.e., cyclosis). This effect occurs when organelles move anterograde along the cortex of the cell and retrograde down the center of the cell. The result is a displacement of cytoplasmic volume causing a cyclic motion of organelles and bulk liquid. Visually, the organelles appear to be traveling in a backwards fountain hence the name. The use of light microscopy bioimaging in this study has documented reverse fountain cytoplasmic streaming for the first time in fungal hyphae of Rhizopus oryzae and other …

Contributors
Shange, Phakade Mdima, Roberson, Robert W, Gile, Gillian, et al.
Created Date
2020

Adoptive transfer of T cells engineered to express synthetic antigen-specific T cell receptors (TCRs) has provocative therapeutic applications for treating cancer. However, expressing these synthetic TCRs in a CD4+ T cell line is a challenge. The CD4+ Jurkat T cell line expresses endogenous TCRs that compete for space, accessory proteins, and proliferative signaling, and there is the potential for mixed dimer formation between the α and β chains of the endogenous receptor and that of the synthetic cancer-specific TCRs. To prevent hybridization between the receptors and to ensure the binding affinity measured with flow cytometry analysis is between the tetramer …

Contributors
Hirneise, Gabrielle Rachel, Anderson, Karen, Mason, Hugh, et al.
Created Date
2020

The Java programing language was implemented in such a way as to limit the amount of possible ways that a program written in Java could be exploited. Unfortunately, all of the protections and safeguards put in place for Java can be circumvented if a program created in Java utilizes internal or external libraries that were created in a separate, insecure language such as C or C++. A secure Java program can then be made insecure and susceptible to even classic vulnerabilities such as stack overflows, string format attacks, and heap overflows and corruption. Through the internal or external libraries included …

Contributors
Gibbs, William, Doupé, Adam, Wang, Ruoyu, et al.
Created Date
2020

Generative Adversarial Networks are designed, in theory, to replicate the distribution of the data they are trained on. With real-world limitations, such as finite network capacity and training set size, they inevitably suffer a yet unavoidable technical failure: mode collapse. GAN-generated data is not nearly as diverse as the real-world data the network is trained on; this work shows that this effect is especially drastic when the training data is highly non-uniform. Specifically, GANs learn to exacerbate the social biases which exist in the training set along sensitive axes such as gender and race. In an age where many datasets …

Contributors
Jain, Niharika, Kambhampati, Subbarao, Liu, Huan, et al.
Created Date
2020

English proficiency is one of the major factors affecting international students’ academic adjustment to American universities. Many international college students select to improve their academic English proficiency through an English intensive program. Collaborative learning is an educational approach to teaching and learning that allows students and teachers to engage in a common task and work together to search for knowledge and skills. This thesis study aims to develop, design, and iteratively refine strategies to help English intensive program teachers build collaborative learning and promote international students’ effective collaboration, so as to improve students' academic English proficiency. In this study, two …

Contributors
Nolastname, Digengni, Wolf, Leigh Graves, Zuiker, Steven, et al.
Created Date
2020

Using a sample of 309 Asian American college students, the present study examined the effects of color-blind racial ideology (i.e., unawareness of blatant racial issues, unawareness of racial privilege and unawareness of institutional racism) on the link between internalization of the model minority myth (i.e., unrestricted mobility and achievement orientation) and psychological distress (i.e., social climate stress, interracial stress, within group stress, racism stress and achievement stress). Results primarily suggest the denial of blatant racism and racial issues (and not denial of racial privilege and institutional racism) exacerbate the effect of internalizing the model minority myth related to unrestricted mobility, …

Contributors
Parks, Sarah, Yoo, Hyung Chol, Spanierman, Lisa, et al.
Created Date
2020

This graduate thesis explains and discusses the background, methods, limitations, and future work of developing a low-budget, variable-length, Arduino-based robotics professional development program (PDP) for middle school or high school classrooms. This graduate thesis builds on prior undergraduate thesis work and conclusions. The main conclusions from the undergraduate thesis work focused on reaching a larger teacher population along with providing a more robust robot design and construction. The end goal of this graduate thesis is to develop a PDP that reaches multiple teachers, involves a more robust robot design, and lasts beyond this developmental year. There have been many similar …

Contributors
lerner, jonah, Carberry, Adam, Walters, Molina, et al.
Created Date
2020

A disconnect exists between the perception of Indigenous women as non-leaders who lack legitimate power, and their persistent actions and beliefs that show an inherent ability to lead families, communities and cultures. Relevant literature on Indigenous women leadership has focused on displacement of women’s power and authority as a consequence of patriarchy and contextualizes the issue within deficit narratives of victimology. These accounts fail to celebrate the survivance of Indigenous women as inherent leaders charged with cultural continuance. Nonetheless, Indigenous women have persisted as leaders within advocacy, indicating a continuance of their inherent tendencies to lead their nations. “Matriarchs in …

Contributors
Marek, Cecilia Ruth, Riding In, James, Solyom, Jessica, et al.
Created Date
2020

Cancer has a financial impact worldwide. According to a study published by the American Cancer Society, “cancer accounts for 1.5% of global gross domestic product loss per year” (John & Ross, 2010). The legal and economic costs of death are not something normally addressed with patients prior to the occurrence of death. With an integrative approach, education may help reduce financial stressors for both the patient and family, while offering cost saving benefits to the facilities involved. Studies have shown that education pertaining to advanced care planning help to reduce hospital visits and the costs associated with the last six …

Contributors
Simundson, Julie Lynn, Rodriguez, Yolanda, Scheall, Scott, et al.
Created Date
2020

Bicycles and motorcycles offer maneuverability, energy efficiency and acceleration that four wheeled vehicles cannot offer given similar budget for. Two wheeled vehicles have drastically different dynamics from four wheeled vehicles due to their instability and gyroscopic effect from their wheels. This thesis focuses on self-stabilization of a motorcycle using an active control momentum gyroscope (CMG) and validation of this multi-degree-of-freedom system’s mathematical model. Physical platform was created to mimic the simulation as accurately as possible and all components used were justified. This process involves derivation of a 3 Degree-of-Freedom (DOF) system’s forward kinematics and its Jacobian matrix, simulation analysis of …

Contributors
Moon, Hansol, Zhang, Wenlong, Frank, Daniel, et al.
Created Date
2020

As the world population continues to age, the demand for treatment and rehabilitation of long-term age-related ailments will rise. Healthcare technology must keep up with this demand, and existing solutions must become more readily available to the populace. Conditions such as impairment due to stroke currently take months or years of physical therapy to overcome, but rehabilitative exoskeletons can be used to greatly extend a physical therapist’s capabilities. In this thesis, a rehabilitative knee exoskeleton was designed which is significantly lighter, more portable and less costly to manufacture than existing designs. It accomplishes this performance by making use of high-powered …

Contributors
Parmentier, Robin W, Zhang, Wenlong, Sugar, Thomas, et al.
Created Date
2020

The purpose of this study is to evaluate the effects of parent training in the Enhanced Milieu Teaching with Phonological Emphasis (EMT+PE) intervention program, using a secure internet-based conferencing software (telepractice), on parent strategy use and child speech and language outcomes for children with repaired cleft lip and/or palate (CL/P). Three participant dyads composed of a parent and child participated in this study. Children ranged in age from 21 to 27 months at the beginning of this study and all had a diagnosis of nonsyndromic CL/P. Participating dyads received three in- person training sessions and three weekly telepractice intervention sessions. …

Contributors
Philp, Jennifer Lynn, Scherer, Nancy, Nett Cordero, Kelly, et al.
Created Date
2020

Control algorithm development for quadrotor is usually based solely on rigid body dynamics neglecting aerodynamics. Recent work has demonstrated that such a model is suited only when operating at or near hover conditions and low-speed flight. When operating in confined spaces or during aggressive maneuvers destabilizing forces and moments are induced due to aerodynamic effects. Studies indicate that blade flapping, induced drag, and propeller drag influence forward flight performance while other effects like vortex ring state, ground effect affect vertical flight performance. In this thesis, an offboard data-driven approach is used to derive models for parasitic (bare-airframe) drag and propeller …

Contributors
Nolastname, Kashyap Sathyamurthy, Zhang, Wenlong, Yong, Sze Zheng, et al.
Created Date
2020

Riding a bicycle requires accurately performing several tasks, such as balancing and navigation, which may be difficult or even impossible for persons with disabilities. These difficulties may be partly alleviated by providing active balance and steering assistance to the rider. In order to provide this assistance while maintaining free maneuverability, it is necessary to measure the position of the rider on the bicycle and to understand the rider's intent. Applying autonomy to bicycles also has the potential to address some of the challenges posed by traditional automobiles, including CO2 emissions, land use for roads and parking, pedestrian safety, high ownership …

Contributors
Bush, Jonathan Ernest, Zhang, Wenlong, Heinrichs, Robert, et al.
Created Date
2020

In many biological research studies, including speech analysis, clinical research, and prediction studies, the validity of the study is dependent on the effectiveness of the training data set to represent the target population. For example, in speech analysis, if one is performing emotion classification based on speech, the performance of the classifier is mainly dependent on the number and quality of the training data set. For small sample sizes and unbalanced data, classifiers developed in this context may be focusing on the differences in the training data set rather than emotion (e.g., focusing on gender, age, and dialect). This thesis …

Contributors
Mariajohn, Aaquila, Berisha, Visar, Spanias, Andreas, et al.
Created Date
2020

The Centers for Disease Control and Prevention (2017) note that gay, bisexual, and other men who have sex with men (collectively referred to as MSM) face more barriers to accessing health care compared to other men. Such barriers include, lack of cultural- and sexual identity-appropriate medical and support services, concerns about confidentiality, and fear of discussing sexual practices or orientation in a medical setting. In comparison to other MSM populations, Latino MSM (LMSM) report having the least amount of access to health care (McKirnan et al., 2012). The purpose of the present study is to elucidate how individual- (i.e., age, …

Contributors
Marsiglia, Steven Sasa, Dillon, Frank R, Capielo Rosario, Cristalís C, et al.
Created Date
2020

Information Retrieval (IR) is the task of obtaining pieces of data (such as documents or snippets of text) that are relevant to a particular query or need from a large repository of information. IR is a valuable component of several downstream Natural Language Processing (NLP) tasks, such as Question Answering. Practically, IR is at the heart of many widely-used technologies like search engines. While probabilistic ranking functions, such as the Okapi BM25 function, have been utilized in IR systems since the 1970's, modern neural approaches pose certain advantages compared to their classical counterparts. In particular, the release of BERT (Bidirectional …

Contributors
Rawal, Samarth, Baral, Chitta, Devarakonda, Murthy, et al.
Created Date
2020

Determining guilty parties in homicide cases is not always straight forward. The more tools investigators have to assist them, the better. 911 calls are often the least influenced form of linguistic evidence, in the sense that the caller has not yet been influenced by lawyers, law enforcement, etc.. This paper analyzes the reliability of using the Considering Offender Probability in Statements (COPS) scale and concordance program to evaluate veracity in 911 homicide calls. To do this, six 911 homicide calls from Mesa, Arizona were transcribed, evaluated based on the COPS scale, and put through a concordance program. The results showed …

Contributors
Gladstone, Chenay, Van Gelderen, Elly, Prior, Matthew, et al.
Created Date
2020

The education and criminal justice systems have developed in relation to one another, intersected through specific events, policies, practices, and discourses that have ultimately shaped the experiences and lives of children of color. Racism, white supremacy, and oppression are foundational to the United States and evident in all systems, structures, and institutions. Exploring the various contexts in which the education and criminal justice systems have developed illuminates their coalescence in contemporary United States society and more specifically, in public schools. Public schools now operate under discipline regimes that criminalize the behavior of Black and Brown children through exclusionary practices and …

Contributors
Nunez-Eddy, Emily Nicole, Broberg, Gregory, Swadener, Beth Blue, et al.
Created Date
2020

Empathy is a critical component of high-quality healthcare. When present in the clinical encounter, empathy is important to physicians (empathy is correlated with reductions in physician anxiety and burnout) and to patients (empathy is correlated with better medical decision making, enhanced trust, and improved treatment adherence). Unfortunately, there is an empathy gap in healthcare–physicians often miss opportunities to demonstrate empathy to their patients. This leaves patients feeling unheard, less likely to bring up details important to their care, and less likely to follow treatment guidelines from physicians, thus disrupting the physician-patient relationship. Luckily, communicating with empathy is a skill that …

Contributors
Meyer, Laura Grace, Shafer, Michael S, Epner, Daniel E, et al.
Created Date
2020