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Does school participatory budgeting (SPB) increase students’ political efficacy? SPB, which is implemented in thousands of schools around the world, is a democratic process of deliberation and decision-making in which students determine how to spend a portion of the school’s budget. We examined the impact of SPB on political efficacy in one middle school in Arizona. Our participants’ (n = 28) responses on survey items designed to measure self-perceived growth in political efficacy indicated a large effect size (Cohen’s d = 1.46), suggesting that SPB is an effective approach to civic pedagogy, with promising prospects for developing students’ political efficacy.
ContributorsGibbs, Norman P. (Author) / Bartlett, Tara Lynn (Author) / Schugurensky, Daniel, 1958- (Author)
Created2021-05-01
Description
A novel concept for integration of flame-assisted fuel cells (FFC) with a gas turbine is analyzed in this paper. Six different fuels (CH4, C3H8, JP-4, JP-5, JP-10(L), and H2) are investigated for the analytical model of the FFC integrated gas turbine hybrid system. As equivalence ratio increases, the efficiency of the hybrid system increases initially then decreases because the decreasing flow rate of air begins to outweigh the increasing hydrogen concentration. This occurs at an equivalence ratio of 2 for CH4. The thermodynamic cycle is analyzed using a temperature entropy diagram and a pressure volume diagram. These thermodynamic diagrams show as equivalence ratio increases, the power generated by the turbine in the hybrid setup decreases. Thermodynamic analysis was performed to verify that energy is conserved and the total chemical energy going into the system was equal to the heat rejected by the system plus the power generated by the system. Of the six fuels, the hybrid system performs best with H2 as the fuel. The electrical efficiency with H2 is predicted to be 27%, CH4 is 24%, C3H8 is 22%, JP-4 is 21%, JP-5 is 20%, and JP-10(L) is 20%. When H2 fuel is used, the overall integrated system is predicted to be 24.5% more efficient than the standard gas turbine system. The integrated system is predicted to be 23.0% more efficient with CH4, 21.9% more efficient with C3H8, 22.7% more efficient with JP-4, 21.3% more efficient with JP-5, and 20.8% more efficient with JP-10(L). The sensitivity of the model is investigated using various fuel utilizations. When CH4 fuel is used, the integrated system is predicted to be 22.7% more efficient with a fuel utilization efficiency of 90% compared to that of 30%.
ContributorsRupiper, Lauren Nicole (Author) / Milcarek, Ryan (Thesis director) / Wang, Liping (Committee member) / Mechanical and Aerospace Engineering Program (Contributor) / School for Engineering of Matter,Transport & Enrgy (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
Since the introduction of the common school in the United States (US), education has constantly been in a state of reform. Given the importance of student learning to the future state of our nation, it is important to understand how positive educational reform can be achieved. This ethnographic case study aims to try to understand how a reform effort works as an educational and a sociocultural process, and what the important contributing factors to actualizing school reform are, as well as the challenges of effective implementation. Specifically, this study focuses on a school-wide reform effort based upon Stephen Covey's Seven Habits (1989). Qualitative research methods were used to address the research questions in this study. The researcher drew upon interviews, observations, and artifact and field note collection to tell the story of an elementary school engaged in year three of a school-wide reform initiative from the viewpoint of 10 teachers involved. Three recurring themes emerged from the data. First, data indicate that school reform is most effective when a school culture is created that supports the activation of teacher voice, efficacy, and coparticipation. Second, time and support are factors impacting implementation. Third, teachers reported that the common language from the reform has impacted the culture of the school. The evolution of a school culture is not simple and is demonstrated in the different ways the teachers experience the reform. Questions of authenticity arise when the reform effort changes from a grassroots, bottom-up initiative to a more top-down, bureaucratized business model.
ContributorsLamp, Michelle (Author) / Mccarty, Teresa (Thesis advisor) / Schugurensky, Daniel, 1958- (Committee member) / Powers, Jeanne (Committee member) / Arizona State University (Publisher)
Created2013
Description
Providing nutrition information at point of sale at restaurants has gained in popularity in recent years and will soon become a legal requirement. Consumers are using this opportunity to become more informed on the nutritional quality of the foods they consume in an effort to maintain healthfulness. Prior research has confirmed the utility of this information in adult populations. However, research on adolescents in school environments has resulted in mixed findings. This study investigated the effect of exposure to calorie and fat information on student purchases at lunchtime in a high school cafeteria. Additionally, it explored other factors that may contribute to students' food selections during school lunches. The research methods included analysis of changes in cafeteria food sales in one school, surveys, and focus groups. Analysis of cafeteria food sales during lunch did not show any significant change in the average number of calories and fat purchased per student between pre and post intervention. However, information gathered from focus group questioning demonstrated how students used the nutrition information to change their behavior after they have purchased their food.
ContributorsFresques, Audrey Delfina (Author) / Schugurensky, Daniel, 1958- (Thesis advisor) / Barnett, Joshua (Committee member) / Cruz, Heather (Committee member) / Arizona State University (Publisher)
Created2013
Description
The purpose of this study is to examine the influence of neoliberalism on the occurrence and intervention of genocide, particularly the ability to create othered groups through a process of dehumanization that desensitizes those in power to the human condition. I propose Social Externalization Theory as paradigm that explains how neoliberalism can be used as a means social control to create subjects vulnerable to political and collective violence that is justified as the externalized cost of economic growth, development, and national security. Finally, the conflict in Darfur (2003 - 2010) serves as a case study to analyze the influence of neoliberal policies on the resistance of the International community to recognize the violence as genocide. Analysis of the case study found that some tenets of neoliberalism produce results that fit within the ideologies of genocide and that some aspects of neoliberalism assume a genocidal mentality. In this case, those in positions power engage in daily activities that justify some suffering as acceptable, thus desensitizing them to the harm that their decisions generate.
ContributorsCalleja, Robert J (Author) / Romero, Mary (Thesis advisor) / Swadener, Beth Blue (Committee member) / Schugurensky, Daniel, 1958- (Committee member) / Arizona State University (Publisher)
Created2013
Description
Production from a high pressure gas well at a high production-rate encounters the risk of operating near the choking condition for a compressible flow in porous media. The unbounded gas pressure gradient near the point of choking, which is located near the wellbore, generates an effective tensile stress on the porous rock frame. This tensile stress almost always exceeds the tensile strength of the rock and it causes a tensile failure of the rock, leading to wellbore instability. In a porous rock, not all pores are choked at the same flow rate, and when just one pore is choked, the flow through the entire porous medium should be considered choked as the gas pressure gradient at the point of choking becomes singular. This thesis investigates the choking condition for compressible gas flow in a single microscopic pore. Quasi-one-dimensional analysis and axisymmetric numerical simulations of compressible gas flow in a pore scale varicose tube with a number of bumps are carried out, and the local Mach number and pressure along the tube are computed for the flow near choking condition. The effects of tube length, inlet-to-outlet pressure ratio, the number of bumps and the amplitude of the bumps on the choking condition are obtained. These critical values provide guidance for avoiding the choking condition in practice.
ContributorsYuan, Jing (Author) / Chen, Kangping (Thesis advisor) / Wang, Liping (Committee member) / Huang, Huei-Ping (Committee member) / Arizona State University (Publisher)
Created2013
Description
This dissertation explores the unique role schools play in contributing toward a sustainable future for their communities. This was undertaken by first conducting a thorough review and analysis of the literature on the current utilization of schools as agents of sustainable development, along with an evaluation of schools engaging in this model around the United States. Following this, a framework was developed to aid in the assessment of school-community engagements from the perspective of social change. Sustainability problem solving tools were synthesized for use by schools and community stakeholders, and were tested in the case study of this dissertation. This case study combined methods from the fields of sustainable development, transition management, and social change to guide two schools in their attempts to increase community sustainability through addressing a shared sustainability problem: childhood obesity. The case study facilitated the creation of a sustainable vision for the Phoenix Metropolitan Area without childhood obesity, as well as strategic actions plans for each school to utilize as they move forward on addressing this challenge.
ContributorsLawless, Tamara Hope (Author) / Golub, Aaron (Thesis advisor) / Redman, Charles (Committee member) / Schugurensky, Daniel, 1958- (Committee member) / Arizona State University (Publisher)
Created2013
Description
Sustainability challenges with severe local to global impacts require fundamental shifts in what industrial societies aspire to, generate, consume, and represent, as well as how they function. Transition governance is a promising framework to support these transformational efforts. A key component of transition governance is the construction of transition strategies, i.e., action schemes for how to transition from the current state to a sustainable one. Despite accomplishments in building theory and methodology for transition governance, the concepts of what transition strategies entail and how they relate to specific interventions are still underdeveloped. This dissertation further develops the concept of transition strategies, and explores how different stakeholder groups and allies can develop and test transition strategies across different scales, in the specific context of urban sustainability challenges. The overarching research question is: How can cities build and implement comprehensive transition strategies across different urban scales, from the city to the organizational level? The dissertation comprises four studies that explore the dynamic between transition strategies and experiments at the city, neighborhood, and organizational levels with empirical examples from Phoenix, Arizona. The first study reviews and compares paradigms of intentional change, namely transition governance, backcasting, intervention research, change management, integrated planning, and adaptive management in order to offer a rich set of converging ideas on what strategies for intentional change towards sustainability entail. The second study proposes a comprehensive concept of transition strategies and illustrates the concept with the example of sustainability strategies created through a research partnership with the City of Phoenix. The third study explores the role of experiments in transition processes through the lens of the neighborhood-level initiative of The Valley of the Sunflowers. The fourth study examines the role organizations can play in initiating urban sustainability transitions using exemplary strategies and experiments implemented at a local high school. The studies combined contribute to the further development of transition theory and sustainable urban development concepts. While this research field is at a nascent stage, the thesis provides a framework and empirical examples for how to build evidence-based transition strategies in support of urban sustainability.
ContributorsKay, Braden Ryan (Author) / Wiek, Arnim (Thesis advisor) / Loorbach, Derk (Committee member) / Schugurensky, Daniel, 1958- (Committee member) / Tiger, Fern (Committee member) / Arizona State University (Publisher)
Created2012
Description
The Empowerment Zones were created in 1993 under Clinton's administration, demonstrating a commitment to solving tough socio-economic problems in distressed communities. The main objective associated with this program was economic recovery of distressed communities by creating jobs and providing various services to the indigenous populations. The designation of the Empowerment Zones went in three rounds (1994, 1998, and 2001), and although the types and amounts of federal incentives varied across rounds, the four principles around which the program originated remain unchanged: strategic vision for change, community based partnerships, economic opportunity, and sustainable community development. Since its inception, the Empowerment Zones program has been implemented in 30 urban and 10 rural communities in 27 states across the U.S. Two central questions lead the research of this dissertation project: 1) What have been the main accomplishments of the round three federal Empowerment Zones program in Tucson? 2) What have been the main challenges of the round three federal Empowerment Zones program in Tucson? By using a case study research design and various techniques for data collection and analysis (including the program package Atlas.ti), this study examined the accomplishments and the challenges associated with the round three designated Empowerment Zone in Tucson. Evidence was collected from multiple sources, including 24 interviews, over 60 local newspaper articles, relevant documentation, annual performance reports, and other sources. The analysis reveals that the program's implementation in Tucson was strong in the beginning, but after two years, the earlier success started to fade quickly. The shortcomings of program design became evident during the implementation phase and further in the inability of the administration to collect relevant data to demonstrate the program's success. The consequences of the inability to provide data for program evaluation influenced the enthusiasm of the administrators and program partners, and weakened the political support. The reduction in the grant component contributed to overemphasis of the business development component thereby ignoring most community development aspects essential for the success of the program in Tucson. This study did not find evidence for the claim that round three of the empowerment zones program based on federal tax incentives contributes to the creation of new jobs and the attraction of new business in economically deprived communities in Tucson.
ContributorsAndonoska, Ljubinka (Author) / Schugurensky, Daniel, 1958- (Thesis advisor) / Miller, Gerald J. (Committee member) / Svara, James H. (Committee member) / Arizona State University (Publisher)
Created2013
Description
Tesla turbo-machinery offers a robust, easily manufactured, extremely versatile prime mover with inherent capabilities making it perhaps the best, if not the only, solution for certain niche applications. The goal of this thesis is not to optimize the performance of the Tesla turbine, but to compare its performance with various working fluids. Theoretical and experimental analyses of a turbine-generator assembly utilizing compressed air, saturated steam and water as the working fluids were performed and are presented in this work. A brief background and explanation of the technology is provided along with potential applications. A theoretical thermodynamic analysis is outlined, resulting in turbine and rotor efficiencies, power outputs and Reynolds numbers calculated for the turbine for various combinations of working fluids and inlet nozzles. The results indicate the turbine is capable of achieving a turbine efficiency of 31.17 ± 3.61% and an estimated rotor efficiency 95 ± 9.32%. These efficiencies are promising considering the numerous losses still present in the current design. Calculation of the Reynolds number provided some capability to determine the flow behavior and how that behavior impacts the performance and efficiency of the Tesla turbine. It was determined that turbulence in the flow is essential to achieving high power outputs and high efficiency. Although the efficiency, after peaking, begins to slightly taper off as the flow becomes increasingly turbulent, the power output maintains a steady linear increase.
ContributorsPeshlakai, Aaron (Author) / Phelan, Patrick (Thesis advisor) / Trimble, Steve (Committee member) / Wang, Liping (Committee member) / Arizona State University (Publisher)
Created2012