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- Creators: College of Health Solutions
Description
Optical Communications are at a high point of interest by the space engineering community. After successful projects like the Lunar Laser Communications Demonstration (LLCD), NASA has become interested in augmenting their current Deep Space Network (DSN) with optical communication links. One such link is Deep Space Optical Communications (DSOC) which will be launching with the Psyche mission. To gain a full understanding of the advantages of this network, this thesis will go over the history and benefits of optical communications both on Earth and in space. This thesis will then go in depth on NASAs DSOC project through an algorithmic implementation of the communications channel.
ContributorsHorton, Paul Alexander (Author) / Mauskopf, Philip (Thesis director) / Sandy, Douglas (Committee member) / Martin, Thomas (Committee member) / Software Engineering (Contributor) / College of Integrative Sciences and Arts (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Many high school students demonstrate an overall lack of interest in science. Traditional teaching methodologies seem to be unsuccessful at engaging students \u2014 one explanation is that students often interpret what they learn in school as irrelevant to their personal lives. Active learning and case based learning methodologies seem to be more effective at promoting interest and understanding of scientific principles. The purpose of our research was to implement a lab with updated teaching methodologies that included an active learning and case based curriculum. The lab was implemented in two high school honors biology classes with the specific goals of: significantly increasing students' interest in science and its related fields; increasing students' self-efficacy in their ability to understand and interpret the traditional process of the scientific method; and increasing this traditional process of objectively understanding the scientific method. Our results indicated that interest in science and its related fields (p = .011), students' self-efficacy in understanding the scientific method (p = .000), and students' objective understanding of the scientific method (p = .000) statistically significantly increased after the lab was administered; however, our results may not be as meaningful as the p-values imply due to the scale of our assessment.
ContributorsCotten, Kathryn (Author) / Hoffner, Kristin (Thesis director) / Stout, Valerie (Committee member) / Lynskey, Jim (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2012-12
Description
This project, Building the Backdrop, Expanding Perspectives on Sustainability, is a sculpture of a desert sunset that seeks to explore important sustainability issues and highlight the beauty in sustainable practices. Constructed for an honors thesis project at Arizona State University, the primary medium used was cardboard repurposed from package deliveries to bring attention to modern overconsumption of packaging materials and showcase our ability to give new life to traditionally single use materials. I invite you to interact with the piece by sharing photos of yourself in front of it to help spread its message and exploring the resources shared along with the sculpture.
ContributorsSandoval, Nicole (Author) / Hines, Taylor (Thesis director) / Meissinger, Ellen (Committee member) / Barrett, The Honors College (Contributor) / Department of Supply Chain Management (Contributor) / Dean, W.P. Carey School of Business (Contributor) / College of Integrative Sciences and Arts (Contributor)
Created2024-05
Description
Introduction: This research examined the prevalence of Chinese older adults’ risk factors (perceived racial discrimination, fear of COVID-19), protective factors (resilience, community support), and mental health status (depression, PTSD) in Chinese older adults aged 65 years and above during the COVID-19 pandemic. Furthermore, the relationships between risk and protective factors and their mental health outcomes were explored.
Methods: This study was a secondary data analysis using the anonymous survey data collected by a research team. Descriptive statistics were used to describe the distributions of the variables; and hierarchical multiple regression models were conducted to examine their relationships.
Results: The sample included 90 Chinese older adults in the United States. The participants demonstrated a moderate level of fear of COVID-19 (M= 21.55, SD = 4.75; range 10-33). The participants scored on the lower end of the perceived discrimination scale (M = .40, SD = 1.44 before COVID-19; M = .77, SD = 1.54 during COVID-19; range 0-7). Resilience (M = 29.02, SD = 5.78 on a scale of 0-40) demonstrated a moderate to moderately high level of resilience. As for community support, 40.3% of participants reported receiving assistance or information regarding COVID-19 from local Asian organizations, indicating a moderate level of community support. The participants reported a relatively low score for PTSD (M = 0.75 SD = 1.17 on a scale from 0 to 5) or depression (M = 2.76 SD = 2.72 on a scale from 0 to 27). Consistent with hypotheses, findings of hierarchical regression models suggested that the risk factors fear of COVID-19 and perceived racial discrimination were positively associated with PTSD symptoms while resilience was negatively associated with PTSD symptoms. Differently, none of the risk factors were significantly associated with depression symptoms while resilience showed a negative relationship with depression symptoms.
Conclusion: The findings of this research will help public health officials better understand the needs of minority and aging communities to best support them during crises similar to the COVID-19 pandemic.
ContributorsMang, David (Author) / Chia-Chen Chen, Angela (Thesis director) / Li, Wei (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2024-05
Description
A guidebook meant to be used by the leadership of the club Poly Purrs. It includes definitions of key terms as well as literature-backed discussion of free-roaming cats in general. The second half of it is advice and information drawn from my own experience with the cat population on the Polytechnic campus.
ContributorsWiese, Alexa (Author) / Murphree, Julie (Thesis director) / Gallaway, Cynthia (Committee member) / Barrett, The Honors College (Contributor) / College of Integrative Sciences and Arts (Contributor)
Created2024-05
Description
We discuss the intricate and puzzling concept of quantum entanglement, and not only
define it but also consider the implications of the behaviors of entangled particles. The ability of
these particles to provide instantaneous information about their entangled counterparts sparked a debate among physicists as to whether or not these particles had definite quantities before
measurement, and whether or not their behaviors could be explained by a local hidden-variables
theorem. Mermin’s gedanken demonstration for a two-particle entangled system is introduced, as well as Bell’s inequality, and an explanation of how a pair of two entangled particles violate this inequality. Additionally, we also discuss various experimental verifications that were able to use Bell’s inequality to verify the expected quantum mechanical results for their entangled systems.
ContributorsDavis, Elsie (Author) / Foy, Joseph (Thesis director) / Hines, Taylor (Committee member) / Barrett, The Honors College (Contributor) / College of Integrative Sciences and Arts (Contributor)
Created2024-05
Description
Transition metal dichalcogenides (TMDs) are a family of layered crystals with the chemical formula MX2 (M = W, Nb, Mo, Ta and X = S, Se, Te). These TMDs exhibit many fascinating optical and electronic properties making them strong candidates for high-end electronics, optoelectronic application, and spintronics. The layered structure of TMDs allows the crystal to be mechanically exfoliated to a monolayer limit, where bulk-scale properties no longer apply and quantum effects arise, including an indirect-to-direct bandgap transition. Controllably tuning the electronic properties of TMDs like WSe2 is therefore a highly attractive prospect achieved by substitutionally doping the metal atoms to enable n- and p-type doping at various concentrations, which can ultimately lead to more effective electronic devices due to increased charge carriers, faster transmission times and possibly new electronic and optical properties to be probed. WSe2 is expected to exhibit the largest spin splitting size and spin-orbit coupling, which leads to exciting potential applications in spintronics over its similar TMD counterparts, which can be controlled through electrical doping. Unfortunately, the well-established doping technique of ion implantation is unable to preserve the crystal quality leading to a major roadblock for the electronics applications of tungsten diselenide. Synthesizing WSe2 via chemical vapor transport (CVT) and flux method have been previously established, but controllable p-type (niobium) doping WSe2 in low concentrations ranges (<1 at %) by CVT methods requires further experimentation and study. This work studies the chemical vapor transport synthesis of doped-TMD W1-xNbxSe2 through characterization techniques of X-ray Diffraction, Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, and X-ray Photoelectron Spectroscopy techniques. In this work, it is observed that excess selenium transport does not enhance the controllability of niobium doping in WSe2, and that tellurium tetrachloride (TeCl4) transport has several barriers in successfully incorporating niobium into WSe2.
ContributorsRuddick, Hayley (Author) / Tongay, Sefaattin (Thesis director) / Jiao, Yang (Committee member) / Barrett, The Honors College (Contributor) / Materials Science and Engineering Program (Contributor)
Created2024-05
Description
Braille Retail is a student-led effort to promote awareness and inclusivity for visually
impaired and blind individuals through legible braille designs on fabric. Our mission is to bring awareness to the visually impaired and blind community and increase braille literacy. We plan to reach our mission by placing legible braille and its translation on our sweatshirts. Furthermore, we want to support the visually impaired and blind community by donating 5% of our profits to local blind charities.
ContributorsO'Shea, Hannah (Author) / Shereck, Kennedy (Co-author) / Pearson, Morgan (Co-author) / Soto, Tatum (Co-author) / Byrne, Jared (Thesis director) / Giles, Bret (Committee member) / Thomasson, Anna (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor) / Department of Marketing (Contributor)
Created2024-05
Description
The mission of EZ-Sit is to alleviate pain and increase comfort by creating a product that allows users to put their feet up when sitting for long periods of time. This product will connect to any single stem office chair with ease and will provide users with the ability to put their feet up whenever and wherever they work. Our goal is to empower individuals to pursue their goals without the hindrance of discomfort that comes with sitting for extended periods of time. At EZ-Sit we believe that no one’s productivity should be impeded due to the pain caused by a sedentary work life. We hope that this product will bring about physical well being in the workplace so individuals can focus on the day ahead of them. At EZ-Sit, our values include personal health, affordability, and productivity. Personal health is one of our core principles because we believe that people should not have to endure pain while sitting in order to get their work done. We value the integrity of the hard work that many people show while trying to pursue their dreams. We believe this strong drive for personal or professional growth should not have the consequences of pain. We also believe that our solution should be accessible to all regardless of financial situations. Our Vision at EZ-Sit is to create awareness around healthy sitting practices in addition to how these practices can boost productivity and can prevent burnout. We want to encourage people to take a stand about their sitting habits. Our analysis of the foot rest industry shows that this is not the first product of its kind, but the EZ-Sit is certainly the most accessible. Footrests exist all over the internet and in stores, but all of them are independent of the actual chair. These foot rests are one size-fits all and provide no physiological benefits to users who are either too short or too tall. In addition there are chairs on the market that have a built-in footrest. These chairs, however, are very expensive. This effectively excludes a whole portion of the market who do not have the means to invest in the product. We plan on marketing to young professionals who fall into the age range of eighteen to twenty-eight years old. We want to emphasize that taking care of your body while pursuing your goals is not something to be taken lightly. When we have a working model we plan on using social media platforms such as Instagram and TikTok to show how the product works as well as educate individuals around the health benefits of this product. Because this product is new to the market it is important for users to understand why it is different from other footrests in the market. Social media will also help to differentiate our product from the others by showing comparisons. We also plan on utilizing slogans that resonate without demographics such as “EZ-Sit, That’s It!” in order to grab the attention of our target audience.
ContributorsAmavizca Aldama, Jesus (Author) / Kozub, Isabella (Co-author) / Choi, Enoch (Co-author) / Heraty, Gabe (Co-author) / Ventura, Jedriq (Co-author) / Byrne, Jared (Thesis director) / Thompson, Anna (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2024-05
Description
Terrestrial hermit crabs serve an incredibly important ecological role in seed dispersal and as decomposers along coastal shorelines. They have also become quite popular in the commercial pet trade, with one species, Coenobita clypeatus, being particularly favored. Typically, these hermit crabs are easily captured and removed from the wild with little protection in their native ranges. In Hermitage Bay, Tobago, there is little information about the population numbers, composition, shell preference, and substrate preference of C. clypeatus in their native habitat. In this study, we estimated population size, gastropod shell preferences, and substrate preference conditions when clustering. We conducted mark re-capture surveys in March, July, and December 2023 and collected morphological data from captured hermit crabs. Our results indicate that the estimated population was highest in July, with the variation being significant when using the Schnabel mark re-capture estimation formula. The most common overall shell type, Columbella mercatoria (West Indian Dove Shell), was prevalent among the smaller sized, younger hermit crabs; while the larger hermit crabs preferred Cittarium pica (West Indian Top Shell). The most preferred substrate for these terrestrial hermit crabs were areas with a mixture of sand and dirt, with high amounts of vegetation and leaf waste and low amounts of human litter. These results suggest a predominantly young population and that beach cleanups should focus on removing human litter entirely, while leaving leaf waste and other fallen logs and branches and not using the collected decomposing plant matter for bonfires. This can help maintain a healthy hermit crab population that continues to benefit the coastlines in Tobago as well as other ecosystems.
ContributorsLindteigen, Amy (Author) / Briggs, Georgette (Thesis director) / Mohammed, Ryan (Committee member) / Barrett, The Honors College (Contributor) / College of Integrative Sciences and Arts (Contributor) / Dean, W.P. Carey School of Business (Contributor)
Created2024-05