Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.

Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.

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The outlying cities of Phoenix's West Metropolitan experienced rapid growth in the past ten years. This trend is only going to continue with an average expected growth of 449-891% between 2000 and 2035 (ADOT, 2012). Phoenix is not new to growth and has consistently seen swaths of people added to

The outlying cities of Phoenix's West Metropolitan experienced rapid growth in the past ten years. This trend is only going to continue with an average expected growth of 449-891% between 2000 and 2035 (ADOT, 2012). Phoenix is not new to growth and has consistently seen swaths of people added to its population. This raises the question of what happened to the people who lived in Phoenix's West Valley during this period of rapid change and growth in their communities? What are their stories and what do their stories reveal about the broader public history of change in Phoenix's West Valley? In consideration of these questions, the community oral histories of eight residents from the West Valley were collected to add historical nuance to the limited archival records available in the area. From this collection, the previous notion of "post-war boomtowns” describing Phoenix’s West Valley was revealed to be highly inaccurate and dismissive of the residents' experiences who lived and formed their lives there.

ContributorsGeiser, Samantha (Author) / Campanile, Isabella (Co-author) / Martinez Orozco, Rafael (Thesis director) / O'Flaherty, Katherine (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor) / School of Mathematical and Statistical Sciences (Contributor)
Created2022-05
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Description

It is a fact of modern food processing that the majority of products contain one or multiple food additives. Yet, while these additives see great abundance of use, the average consumer has relatively little knowledge about them and, more often than not, a negative opinion of their inclusion. This piece

It is a fact of modern food processing that the majority of products contain one or multiple food additives. Yet, while these additives see great abundance of use, the average consumer has relatively little knowledge about them and, more often than not, a negative opinion of their inclusion. This piece explores the discrepancy between these two realities by delving into the origins, histories of use, health effects, and misconceptions that surround a number of modern food additives, exploring along the way the social changes and regulatory history that brought about the legal landscape of food safety in the United States. Ten author-developed recipes are included at the end to encourage not only a conceptual, but also a practical familiarity with these same food additives.

ContributorsChismar, Adam (Author) / Boyce-Jacino, Katherine (Thesis director) / Jacobs, Mark (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2021-12
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Description
Phenolic polymers such as polyphenols and polyphenylenes are generated industrially for several applications but are typically associated with harsh reaction conditions and environmentally hazardous chemicals, such as formaldehyde. Additionally, hydroxycinnamic acids, such as p-coumaric acid (CA), are found in high concentrations in underutilized lignin-derived hydrolysates and represent a renewable and

Phenolic polymers such as polyphenols and polyphenylenes are generated industrially for several applications but are typically associated with harsh reaction conditions and environmentally hazardous chemicals, such as formaldehyde. Additionally, hydroxycinnamic acids, such as p-coumaric acid (CA), are found in high concentrations in underutilized lignin-derived hydrolysates and represent a renewable and sustainable feedstock for the production of various aromatics and phenolics. To that end, recently a strain of Corynebacterium glutamicum has been developed by the Joint Bioenergy Institute to express a Phenolic Acid Decarboxylase (PAD), which can convert CA into 4-vinylphenol (4VP). 4VP is cytotoxic but can be polymerized by ligninolytic enzymes such as laccases or peroxidases into less-toxic poly(4-vinylphenol) (PVP). This work investigates the potential of polymerizing 4VP in situ by adding ligninolytic enzymes into the fermentation media to polymerize 4VP into PVP as it is produced, while reducing cellular toxicity to aid in chemical conversion. The engineered C. glutamicum strain was cultured in the presence of CA to produce 4VP, with a maximum yield of 80.75%. Simultaneously, two ligninolytic enzymes, laccase and horseradish peroxidase (HRP), were explored in an in vitro experiment for their ability to polymerize 4VP, with laccase achieving full polymerization within 45 minutes and HRP able to polymerize 54.06% of 4VP in 24 hours. The resulting polymers were further analyzed by using gas permeation chromatography - nuclear magnetic resonance, validating the synthesis of PVP from 4VP with the addition of laccase or HRP. Finally, the C. glutamicum strain was evaluated for its ability to grow in the presence of hydrogen peroxide, which is a necessary reagent for HRP functionality, and it was able to reach an optical density of 3.69 within 36 hours. These findings suggest that in situ polymerization may be possible. Further work is underway to explore the enzyme kinetics at different pH, validate the potential of polymerization in situ, and study the fermentative benefits associated with in situ polymerization. This will be followed by additional analytical studies to characterize the resulting PVP.
ContributorsEderer, William (Author) / Varman, Arul (Thesis director) / Long, Timothy (Committee member) / Rodriguez, Alberto (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05
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Description

In this study, the adsorption of a certain mold volatile organic compound onto interior surfaces was investigated. The model volatile organic compound examined was ethanol vapor, and the interior surface used was gypsum wallboard. Classical rate law kinetics were used to define this reaction.

ContributorsBorgogni, Nathanael (Author) / Andino, Jean (Thesis director) / Lamansky, Mikiye (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor) / School of Molecular Sciences (Contributor)
Created2022-05
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Description

This project aims to develop a new technology and technique that will aid in the relatively automated detection of respiratory-related changes that are exacerbated by air pollutants (e.g. lung function/respiratory changes due to air-pollution-induced asthma). This work involves understanding air transport in the human respiratory system (including the chemical and

This project aims to develop a new technology and technique that will aid in the relatively automated detection of respiratory-related changes that are exacerbated by air pollutants (e.g. lung function/respiratory changes due to air-pollution-induced asthma). This work involves understanding air transport in the human respiratory system (including the chemical and physiological impacts of air pollutants), advancing the state of the art in sensing, acoustic signal processing, and machine learning to enhance automation.

ContributorsSpohn, Ally (Author) / Andino, Jean (Thesis director) / Labban, Dillon (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05
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Description
Students with disabilities are underrepresented and underserved in college science, technology, engineering and math (STEM) degrees. Disabled individuals comprise 26% of the U.S. population but only about 9% of the students enrolled in STEM undergraduate programs. Individuals with disabilities who do pursue STEM degrees report unique challenges within their programs,

Students with disabilities are underrepresented and underserved in college science, technology, engineering and math (STEM) degrees. Disabled individuals comprise 26% of the U.S. population but only about 9% of the students enrolled in STEM undergraduate programs. Individuals with disabilities who do pursue STEM degrees report unique challenges within their programs, including struggling to receive needed accommodations and experiencing discrimination from peers and instructors. However, there has been limited research on the extent to which disability characteristics affect their experiences in STEM. To address this gap in the literature, we surveyed over 700 undergraduates with disabilities enrolled in STEM majors across the U.S. and probed their sense of belonging in science, feelings of morale, perception of campus climate, experienced classroom stigma, responsiveness of disability resource offices, scientific self-efficacy, science identity, and science community values. Using linear regression, we will assess and present on outcomes related to students’ persistence in college, outcomes specific to students with disabilities, and outcomes specific to these students in STEM. The findings of this work can be used to inform recommendations to create more inclusive experiences in college STEM for students with disabilities.
ContributorsNorton, Jennifer (Author) / Cooper, Katelyn (Thesis director) / Baumann, Alicia (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05
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Description
Undergraduate mock trial is an competition where undergraduate students conduct a fake trial. Due to the COVID-19 pandemic, mock trial became an online activity. This paper studied the differences between the in-person and online versions of the activity, including differences in presentation, technology, and communication. Mock trial competitors and judges

Undergraduate mock trial is an competition where undergraduate students conduct a fake trial. Due to the COVID-19 pandemic, mock trial became an online activity. This paper studied the differences between the in-person and online versions of the activity, including differences in presentation, technology, and communication. Mock trial competitors and judges from around the country were surveyed about the differences. The results showed that there was a clear favor for in-person mock trial, and though online mock trial had some drawbacks, the accessibility of online mock trial indicates that it can serve as an introduction and good substitute when in-person mock trial is not available.
ContributorsMahajani, Asha (Author) / Niebuhr, Robert (Thesis director) / Hermann, Kristen (Committee member) / Doran, Chris (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05
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Description

Speculative fiction and fantasy media have abundant power to portray alternative realities or imagined futures for minority groups. Buffy the Vampire Slayer, from the late 1990s-early 2000s, and Wynonna Earp, from the late 2010s, are two fantasy television shows that produce this often-progressive, impactful representation, particularly for lesbians and bisexual

Speculative fiction and fantasy media have abundant power to portray alternative realities or imagined futures for minority groups. Buffy the Vampire Slayer, from the late 1990s-early 2000s, and Wynonna Earp, from the late 2010s, are two fantasy television shows that produce this often-progressive, impactful representation, particularly for lesbians and bisexual people. Drawing on Queer and Monster Theories from Susan Stryker, Marilee Lindemann, Harry Benshoff, and Alexis Lothian, this thesis examines queer representation in these TV shows and how it contributes to the normalization of LGBTQ+ individuals whilst simultaneously honoring the shows’ queer fans. Normalizing non-cishetero genders and sexualities helps rewrite the narrative of LGBTQ+ people being considered “deviant” and threatening societal order; and holding true to queer roots of challenging social norms prevents the power of the queer community from being influenced by the pressures of compulsory heterosexuality.

ContributorsCardona, Lauren (Author) / Van Engen, Dagmar (Thesis director) / Mack, Robert (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05
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Description

In 2019, the World Health Organization stated that climate change and air pollution is the greatest growing threat to humanity. With a world population of close to 8 billion people, the rate of population growth continues to increase nearly 1.05% each year. As the world population grows, carbon dioxide emissions

In 2019, the World Health Organization stated that climate change and air pollution is the greatest growing threat to humanity. With a world population of close to 8 billion people, the rate of population growth continues to increase nearly 1.05% each year. As the world population grows, carbon dioxide emissions and climate change continue to accelerate. By observing increasing concentrations of greenhouse gas emissions in the atmosphere, scientists have correlated that the Earth’s temperature is increasing at an average rate of 0.13 degrees Fahrenheit each decade. In an effort to mitigate and slow climate change engineers across the globe have been eagerly seeking solutions to fight this problem. A new form of carbon dioxide mitigation technology that has begun to gain traction in the last decade is known as direct air capture (DAC). Direct air capture works by removing excess atmospheric carbon dioxide from the air and repurposing it. The major challenge faced with DAC is not capturing the carbon dioxide but finding a useful way to reuse the post-capture carbon dioxide. As part of my undergraduate requirements, I was tasked to address this issue and create my own unique design for a DAC system. The design was to have three major goals: be 100% self-sufficient, have net zero carbon emissions, and successfully repurpose excess carbon dioxide into a sustainable and viable product. Arizona was chosen for the location of the system due to the large availability of sunlight. Additionally, the design was to utilize a protein rich hydrogen oxidizing bacteria (HOB) known as Cupriavidus Necator. By attaching a bioreactor to the DAC system, excess carbon dioxide will be directly converted into a dense protein biomass that will be used as food supplements. In addition, my system was designed to produce 1 ton (roughly 907.185 kg) of protein in a year. Lastly, by utilizing solar energy and an atmospheric water generator, the system will produce its own water and achieve the goal of being 100% self-sufficient.

ContributorsMacIsaac, Ian (Author) / Lin, Jerry (Thesis director) / Ovalle-Encinia, Oscar (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor) / Historical, Philosophical & Religious Studies, Sch (Contributor)
Created2022-05
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Description
Sleep paralysis is when a person finds themselves in a state of conscious paralysis as they are falling asleep or waking up. It is often accompanied by shallowing breathing, visual and auditory hallucinations, and a sense of terror. Sleep paralysis has a rich folklore consisting of sleep demons,

Sleep paralysis is when a person finds themselves in a state of conscious paralysis as they are falling asleep or waking up. It is often accompanied by shallowing breathing, visual and auditory hallucinations, and a sense of terror. Sleep paralysis has a rich folklore consisting of sleep demons, spirits, and curses some of which are still told to children today. This thesis will explore a timeline of this folklore that involves modern day sleep paralysis, a history of sleep science, and how they collided resulting in the official diagnosis of sleep paralysis as a sleep disorder.
ContributorsBusselle, Olivia (Author) / Boyce-Jacino, Katherine (Thesis director) / Petrov, Megan (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)
Created2022-05