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Description
The focus of this study was to investigate better learning opportunities at the epicenter of field-level aircraft maintenance technical training for the United States Air Force. While narrow in focus, this project may be informative for training communities across diverse industries. The intent of this project is to improve the transfer of training from the classroom to the workplace by implementing a blended learning classroom pedagogy, successively enhancing class time for more meaningful construction of student-centered learning. This mixed-methods research study utilized surveys, observations, and interviews with students, instructors and supervisors to explore perceptions that aircraft maintainers have about the current and potential value of curriculum. The first significant finding was that aircraft maintainers do believe there is opportunity to improve the current rote transmission style of curriculum and make it more learner-centered. The second significant finding is that aircraft maintainers do see a blended learning classroom as a means to explore the curriculum in more depth and improve the transfer of their knowledge in a more meaningful way to the workplace.
ContributorsDawes, Scott (Author) / Gee, Betty (Thesis advisor) / Mertler, Craig (Committee member) / Archambault, Leanna (Committee member) / Arizona State University (Publisher)
Created2019
Description
This study took place at SUNY Buffalo State College in Buffalo, NY during the 2018-2019 academic year, and was conducted to examine the effect of the Health Ambassador (HA) program on reducing drinking, drug use, and other potential detrimental health behaviors among Greeks and athletes. Study participants included 147 participants derived from two groups of undergraduate students. Group 1 included 18 students who participated in the Health Ambassador program. Group 2 included 129 men and women who were recruited from three athletic teams and two campus sororities. Group 2 was further divided into intervention and control groups.
A five-week multi-phase health and leadership intervention, consisting of health and leadership trainings and workshops, was implemented over two semesters. Through a blended approach, which incorporated both in-person and online trainings, health ambassadors were educated in health and leadership content and developed prevention workshops to positively influence Greeks and athletes’ perceptions and behaviors toward substance use. Following the trainings, the health ambassadors delivered these substance prevention workshops to members of the intervention group. Self-Efficacy Theory and the Theory of Planned Behavior served as the theoretical frameworks for this study in order to determine health ambassador opinions around serving as student leaders and assess Greek and athletic student beliefs over engaging in potentially unsafe health behaviors, including alcohol and substance abuse.
The study employed a convergent parallel mixed methods approach where both quantitative and qualitative data were collected concurrently, analyzed separately, and compared to determine if the results substantiated each other. Taken from surveys, questionnaires, group interviews, observations, and field notes, this study shows that (1) past 30 day use of alcohol, binge drinking, and marijuana positively decreased following the health ambassador intervention, (2) intervention group participants became more effective at refusing drugs and alcohol and were more confident in making healthier choices, (3) health ambassadors overcame initial fears and biases toward working with Greeks and athletes, and achieved success presenting health material and functioning as student leaders, (4) the individual and collective efficacy of the health ambassadors positively increased. Additionally, study limitations, implications for research, implications for practice, and conclusions were discussed.
A five-week multi-phase health and leadership intervention, consisting of health and leadership trainings and workshops, was implemented over two semesters. Through a blended approach, which incorporated both in-person and online trainings, health ambassadors were educated in health and leadership content and developed prevention workshops to positively influence Greeks and athletes’ perceptions and behaviors toward substance use. Following the trainings, the health ambassadors delivered these substance prevention workshops to members of the intervention group. Self-Efficacy Theory and the Theory of Planned Behavior served as the theoretical frameworks for this study in order to determine health ambassador opinions around serving as student leaders and assess Greek and athletic student beliefs over engaging in potentially unsafe health behaviors, including alcohol and substance abuse.
The study employed a convergent parallel mixed methods approach where both quantitative and qualitative data were collected concurrently, analyzed separately, and compared to determine if the results substantiated each other. Taken from surveys, questionnaires, group interviews, observations, and field notes, this study shows that (1) past 30 day use of alcohol, binge drinking, and marijuana positively decreased following the health ambassador intervention, (2) intervention group participants became more effective at refusing drugs and alcohol and were more confident in making healthier choices, (3) health ambassadors overcame initial fears and biases toward working with Greeks and athletes, and achieved success presenting health material and functioning as student leaders, (4) the individual and collective efficacy of the health ambassadors positively increased. Additionally, study limitations, implications for research, implications for practice, and conclusions were discussed.
ContributorsLindner, Jonathan (Author) / Bertrand, Melanie (Thesis advisor) / Kenyon, Charles (Committee member) / Pivovarova, Margarita (Committee member) / Arizona State University (Publisher)
Created2019
Description
In 1976 Florynce R. Kennedy, a United States lawyer, activist, speaker, and
author famously stated that “anybody with the brains and energy to become a teacher ought to want to become something better.” With these stigmas surrounding the teaching profession, it becomes a wonder that anybody decides to become a teacher, or even more difficult, stay in the profession. The state of Arizona, specifically, has reached landmark attrition rates and dissatisfaction surrounding lack of education funding. The stories of those leaving have been well publicized over the last year, but what about those who choose to stay? This dissertation examines the counter narrative behind the teacher attrition crisis by focusing on the stories of the teachers in the secondary English Language Arts (ELA) classroom who have decided to remain in the profession. Through narrative inquiry, this study examines how teachers narrate their experiences as teachers and how those constructs may have contributed to their retention. This study collected data from four high school English teachers through two in-depth interviews, classroom observations, a self-made teacher journey concept map, and teaching artifacts in the form of a teaching experience “time capsule.” Through this data, the participants’ stories highlighting their journey to teaching, current careers, and insights on retention were re- storied then thematically coded and analyzed. Findings are in essence the stories themselves, but also reveal how these teachers narrate their career, societal impacts, quality of life, as well as what motivating factors inspire them to stay in the classroom and teach.
author famously stated that “anybody with the brains and energy to become a teacher ought to want to become something better.” With these stigmas surrounding the teaching profession, it becomes a wonder that anybody decides to become a teacher, or even more difficult, stay in the profession. The state of Arizona, specifically, has reached landmark attrition rates and dissatisfaction surrounding lack of education funding. The stories of those leaving have been well publicized over the last year, but what about those who choose to stay? This dissertation examines the counter narrative behind the teacher attrition crisis by focusing on the stories of the teachers in the secondary English Language Arts (ELA) classroom who have decided to remain in the profession. Through narrative inquiry, this study examines how teachers narrate their experiences as teachers and how those constructs may have contributed to their retention. This study collected data from four high school English teachers through two in-depth interviews, classroom observations, a self-made teacher journey concept map, and teaching artifacts in the form of a teaching experience “time capsule.” Through this data, the participants’ stories highlighting their journey to teaching, current careers, and insights on retention were re- storied then thematically coded and analyzed. Findings are in essence the stories themselves, but also reveal how these teachers narrate their career, societal impacts, quality of life, as well as what motivating factors inspire them to stay in the classroom and teach.
ContributorsLuszeck, Amanda (Author) / Blasingame, James (Thesis advisor) / Durand, Elizabeth S (Thesis advisor) / Bickmore, Steven (Committee member) / Crowe, Christopher (Committee member) / Arizona State University (Publisher)
Created2019
Description
ABSTRACT
To remain competitive on local, state, and national levels and to achieve future economic and social goals, Imperial and Yuma County need an educated workforce. The primary industries supporting the desert region are technical, science, technology, enginnering and mathematics (STEM)-based, and require a highly skilled and educated workforce. There continue to be vast disparities in terms of numbers of students declared and enrolled in STEM transfer degree programs and the number of students completing STEM bachelor’s degrees.
Perceptions regarding post-secondary education start to develop at a young age and can prevent or enable a student’s development of post-secondary aspirations. Understanding a student’s perceptions of barriers are important because they can prevent students from completing a four-year degree. The pilot research provided in the study are the first steps in helping educators and community leaders understand what drives and form student perceived educational barriers and student perceptions of self, and then provide a better understanding of first-generation Hispanic students’ value of higher education.
As part of the study, I designed the science, technology, engineering, agriculture and mathematics (“STEAM”) College Success Program to help college students overcome the perceived barriers intervening with the completion of a bachelor’s degree. The program involved community, industry, and college students in a unique experience of incorporating a one-week camp, academic year of mentorship, STEM education, and college support. Pilot results of the “STEAM” College Success Program indicate the innovation was effective in reducing perceived barriers relating to college success and bachelor’s degree completion.and was most effective in the area of self-efficacy and personal achievement.
To remain competitive on local, state, and national levels and to achieve future economic and social goals, Imperial and Yuma County need an educated workforce. The primary industries supporting the desert region are technical, science, technology, enginnering and mathematics (STEM)-based, and require a highly skilled and educated workforce. There continue to be vast disparities in terms of numbers of students declared and enrolled in STEM transfer degree programs and the number of students completing STEM bachelor’s degrees.
Perceptions regarding post-secondary education start to develop at a young age and can prevent or enable a student’s development of post-secondary aspirations. Understanding a student’s perceptions of barriers are important because they can prevent students from completing a four-year degree. The pilot research provided in the study are the first steps in helping educators and community leaders understand what drives and form student perceived educational barriers and student perceptions of self, and then provide a better understanding of first-generation Hispanic students’ value of higher education.
As part of the study, I designed the science, technology, engineering, agriculture and mathematics (“STEAM”) College Success Program to help college students overcome the perceived barriers intervening with the completion of a bachelor’s degree. The program involved community, industry, and college students in a unique experience of incorporating a one-week camp, academic year of mentorship, STEM education, and college support. Pilot results of the “STEAM” College Success Program indicate the innovation was effective in reducing perceived barriers relating to college success and bachelor’s degree completion.and was most effective in the area of self-efficacy and personal achievement.
ContributorsHodges, Tanya Marie (Author) / Bernstein, Katie (Thesis advisor) / Dyer, Penny (Committee member) / Montopoli, George (Committee member) / Schaal, Mary (Committee member) / Arizona State University (Publisher)
Created2019
Description
It is well known that radiative heat transfer rate can exceed that between two blackbodies by several orders of magnitude due to the coupling of evanescent waves. One promising application of near-field thermal radiation is thermophotovoltaic (TPV) devices, which convert thermal energy to electricity. Recently, different types of metamaterials with excitations of surface plasmon polaritons (SPPs)/surface phonon polaritons (SPhPs), magnetic polaritons (MP), and hyperbolic modes (HM), have been studied to further improve near-field radiative heat flux and conversion efficiency. On the other hand, near-field experimental demonstration between planar surfaces has been limited due to the extreme challenge in the vacuum gap control as well as the parallelism.
The main objective of this work is to experimentally study the near-field radiative transfer and the excitation of resonance modes by designing nanostructured thin films separated by nanometer vacuum gaps. In particular, the near-field radiative heat transfer between two parallel plates of intrinsic silicon wafers coated with a thin film of aluminum nanostructure is investigated. In addition, theoretical studies about the effects of different physical mechanisms such as SPhP/SPP, MPs, and HM on near-field radiative transfer in various nanostructured metamaterials are conducted particularly for near-field TPV applications. Numerical simulations are performed by using multilayer transfer matrix method, rigorous coupled wave analysis, and finite difference time domain techniques incorporated with fluctuational electrodynamics. The understanding gained here will undoubtedly benefit the spectral control of near-field thermal radiation for energy-harvesting applications like thermophotovoltaic energy conversion and radiation-based thermal management.
The main objective of this work is to experimentally study the near-field radiative transfer and the excitation of resonance modes by designing nanostructured thin films separated by nanometer vacuum gaps. In particular, the near-field radiative heat transfer between two parallel plates of intrinsic silicon wafers coated with a thin film of aluminum nanostructure is investigated. In addition, theoretical studies about the effects of different physical mechanisms such as SPhP/SPP, MPs, and HM on near-field radiative transfer in various nanostructured metamaterials are conducted particularly for near-field TPV applications. Numerical simulations are performed by using multilayer transfer matrix method, rigorous coupled wave analysis, and finite difference time domain techniques incorporated with fluctuational electrodynamics. The understanding gained here will undoubtedly benefit the spectral control of near-field thermal radiation for energy-harvesting applications like thermophotovoltaic energy conversion and radiation-based thermal management.
ContributorsSabbaghi, Payam (Author) / Wang, Liping (Thesis advisor) / Phelan, Patrick (Committee member) / Huang, Huei-Ping (Committee member) / Wang, Robert (Committee member) / Yu, Hongbin (Committee member) / Arizona State University (Publisher)
Created2019
Description
With the advancement of the Additive Manufacturing technology in the fields of metals, a lot of interest has developed in Laser Powder Bed (LPBF) for the Aerospace and Automotive industries. With primary challenges like high cost and time associated with this process reducing the build time is a critical component. Being a layer by layer process increasing layer thickness causes a decrease in manufacturing time. In this study, effects of the change in layer thickness in the Laser Powder Bed Fusion of Inconel 718 were evaluated. The effects were investigated for 30, 60 and 80 μm layer thicknesses and were evaluated for Relative Density, Surface Roughness and Mechanical properties, for as-printed specimens not subjected to any heat treatment. The process was optimized to print dense pasts by varying three parameters: power, velocity and hatch distance. Significant change in some properties like true Ultimate Tensile Testing (UTS), %Necking and Yield Stress was observed.
ContributorsPatil, Dhiraj Amar (Author) / Bhate, Dhruv (Thesis advisor) / Azeredo, Bruno (Committee member) / Nian, Qiong (Committee member) / Arizona State University (Publisher)
Created2019
Description
This thesis explores the possibility of fabricating superconducting tunnel junctions (STJ) using double angle evaporation using an E-beam system. The traditional method of making STJs use a shadow mask to deposit two films requires the breaking of the vacuum of the main chamber. This technique has given bad results and proven to be a tedious process. To improve on this technique, the E-beam system was modified by adding a load lock and transfer line to perform the multi-angle deposition and in situ oxidation in the load lock without breaking the vacuum of the main chamber. Bilayer photolithography process was used to prepare a pattern for double angle deposition for the STJ. The overlap length could be easily controlled by varying the deposition angles. The low-temperature resistivity measurement and scanning electron microscope (SEM) characterization showed that the deposited films were good. However, I-V measurement for tunnel junction did not give expected results for the quality of the fabricated STJs. The main objective of modifying the E-beam system for multiple angle deposition was achieved. It can be used for any application that requires angular deposition. The motivation for the project was to set up a system that can fabricate a device that can be used as a phonon spectrometer for phononic crystals. Future work will include improving the quality of the STJ and fabricating an STJs on both sides of a silicon substrate using a 4-angle deposition.
ContributorsRana, Ashish (Author) / Wang, Robert Y (Thesis advisor) / Newman, Nathan (Committee member) / Wang, Liping (Committee member) / Arizona State University (Publisher)
Created2019
Description
The purpose of this mixed-methods action research study was to discover the hindrances and apply new innovative ideas to the problematic stages of student acclimatization and acculturation to an American education and Taiwanese host culture. The goal was to improve academic success during the initial first year, improve the acclimatization process, and stimulate the acculturation process.
The study applied a mixed-methods approach. Four new foreign students participated in a 12-week innovation. This innovation consisted of establishing a protocol for school staff, creating and implementing a student-led Welcoming Committee, training at the beginning of the school year, establishing guidelines and expectations for participating Welcoming Committee members, assigning peer mentors to new students, and providing opportunities for socializing and meeting people. The participants took pre and post cultural self-efficacy tests. In addition, qualitative data was collected from the interviews of the four participants.
The new foreign students showed an increase in cultural self-efficacy from the beginning of the innovation to the conclusion of it. Findings of this study found that students used past experiences in creating initial perceptions, these perceptions changed after interactions with the Welcoming Committee, ample assistance was given to the new foreign students throughout the innovation, and Welcoming Committee members were relied on to make initial contact with others due to initial difficulties in this area.
The study applied a mixed-methods approach. Four new foreign students participated in a 12-week innovation. This innovation consisted of establishing a protocol for school staff, creating and implementing a student-led Welcoming Committee, training at the beginning of the school year, establishing guidelines and expectations for participating Welcoming Committee members, assigning peer mentors to new students, and providing opportunities for socializing and meeting people. The participants took pre and post cultural self-efficacy tests. In addition, qualitative data was collected from the interviews of the four participants.
The new foreign students showed an increase in cultural self-efficacy from the beginning of the innovation to the conclusion of it. Findings of this study found that students used past experiences in creating initial perceptions, these perceptions changed after interactions with the Welcoming Committee, ample assistance was given to the new foreign students throughout the innovation, and Welcoming Committee members were relied on to make initial contact with others due to initial difficulties in this area.
ContributorsAyers, Aaron (Author) / Bernstein, Katie (Thesis advisor) / Koro-Ljungberg, Mirka (Committee member) / McGrath, John (Committee member) / Arizona State University (Publisher)
Created2019
Description
The problem of practice addressed in this mixed methods action research study is the underachievement of fifth-grade students in mathematics. This study explores the effects of an innovation designed to help students develop a growth mindset by utilizing self-regulation strategies to improve academic growth in mathematics. Students’ underachievement in mathematics has been illustrated by both state and international assessments. Throughout the decades, mathematics instruction and reforms have varied, but overall students’ psychological needs have been neglected. This innovation was designed to develop students’ psychological characteristics regarding facing challenges in mathematics. For this purpose, two guiding theories were utilized to frame this research study, Dweck’s mindset theory and self-regulation theory. To address the research questions of this study, pre- and post-questionnaire data, observational data and student work was analyzed. Results of the qualitative data indicated that the innovation positively impacted students’ mindsets and use of self-regulation strategies. However, quantitative data indicated the innovation had no effect on students’ use of self-regulation strategies or academic growth, and a negative impact on students’ mindsets.
ContributorsManchester, Sarah (Author) / Judson, Eugene (Thesis advisor) / Moses, Lindsey (Committee member) / Ellis, Raquel (Committee member) / Arizona State University (Publisher)
Created2020
Description
This study explores the impact of a professional development (PD) activity conducted for teachers of the Next Generation Science Standards (NGSS) at 15 American-curriculum international schools. The intervention involved teachers utilizing the 3D-PAST screening tool to systematically evaluate the alignment of teacher-designed assessments with the constructs of the NGSS and best practices in science instruction. Data about the way the intervention enhanced or challenged teachers’ understanding of the NGSS were collected via a multiple methods approach. The New Framework of Science Education Survey of Teacher Understanding (NFSE-STU) was used in a retrospective pretest-posttest fashion to assess changes in teachers’ understanding of NGSS constructs. Subsequently, interviews were conducted with participants which provided data that expanded upon the NFSE-STU findings. The Refined Consensus Model of Pedagogical Content Knowledge (RCM-PCK) was used to interpret the findings and situate the study within the extant literature on teacher PCK. The intervention was found to have a statistically significant effect on teachers’ understanding of the NGSS in all areas measured by the NFSE-STU. Additionally, data suggest that the intervention elicited changes in teachers’ classroom practices and improved collaborative professional practices. Also highlighted in the analysis was the significance of the relationship between the intervention moderator and the participants as a strong predictor of the way the intervention was perceived by teachers. The findings strongly support the suggestion that international school administrators seeking to maximize the impact of science teacher professional development should consider PD activities that train teachers in the use of aids to align NGSS assessments, because doing so simultaneously enhances teacher understanding of the NGSS while encouraging meaningful changes to professional practice. The study contributes to the nascent body of literature utilizing the RCM-PCK to situate understanding of science-teacher PCK, and fills a void in literature examining PD in American curriculum international schools, and highlights issues with potential to serve as foci for additional cycles of action research in the areas of international schools, science teacher and NGSS-related professional development, and the use of tools similar to 3D-PAST within other teaching disciplines.
ContributorsWilcox, Wyatt (Author) / Fischman, Gustavo (Thesis advisor) / Graves Wolf, Leigh (Committee member) / Droese, Shirley (Committee member) / Arizona State University (Publisher)
Created2020