Matching Items (10)
Filtering by
- Genre: Masters Thesis
- Creators: Arizona State University
- Creators: Chakraborty, Bijeta
- Member of: ASU Electronic Theses and Dissertations
Description
This study was done in collaboration with the Kino Border Initiative. The Kino Border Initiative is a Catholic, bi-national organization run by Missionary Sisters of the Eucharist, Jesuit priests and lay people. The organization is dedicated to providing services to recently deported migrants and migrants-in-transit through their soup kitchen, women's shelter and first aid station in Nogales, Sonora. Based on their experiences in the women's shelter, the Missionary Sisters of the Eucharist and researcher sought out to further understand migrant women's experiences of gender-based violence prior to migration. Using data collected by the Sisters, it was decided to use an analysis rooted in testimonio, and, in this way, use the women's words as a foundational basis for understanding the migration of women. The analysis is based on 62 testimonies related to women's histories of violence and their migration experiences, and the information from 74 intake questionnaires that were all analyzed retroactively. The analysis of data and testimonios has led to the realization that violence suffered by migrant women is not limited to the journey itself, and that 71% of women report having suffered some sort of violence either prior to or during migration. Often times, the first experiences of violence originated in their homes when they were children and continue to repeat itself throughout their lifetimes in varied forms. Their stories reveal how the decision to migrate is a consequence to the transnational and structural violence that pushes women to seek out ways to survive and provide for their families.
ContributorsConrad, Marla (Author) / Elenes, C. Alejandra (Thesis advisor) / Simmons, William P. (Committee member) / Téllez, Michelle (Committee member) / Arizona State University (Publisher)
Created2013
Description
This thesis focuses on justice, human rights, and migration in Iraq. It explores the ideas of justice and human rights, and how they influence the migration of the Iraqi Assyrians and Chaldeans. Through the use of qualitative methodology, including a review of scholarly literature, personal experience, and semi-formal interviews with ten individuals, this research mainly focuses on the influence that justice and human rights had on migration during the U.S.-Iraq War, from 2003 until 2011. Justice, human rights, and migration before and after the War are examined. The study concludes that justice and human rights are factors that influence the migration of Iraq's Assyrian and Chaldean community throughout the U.S.-Iraq War; however justice and human rights are not the only factors.
ContributorsBiya, Diana (Author) / Romero, Mary (Thesis advisor) / Ali, Souad T. (Thesis advisor) / El Hamel, Chouki (Committee member) / Arizona State University (Publisher)
Created2014
Description
The &ldquoMormon; Colonies” in Chihuahua, northern Mexico, boast a sizable population of women originally from the United States who have immigrated to these small Mexican towns. This ethnographic study of the immigrant women in the area focuses on questions of citizenship and belonging, and bolsters the scholarship on U.S. American immigrants in Mexico. Using data from 15 unstructured interviews, the women&rsquos; experiences of migration provide a portrait of U.S. American immigrants in a Mexican religious community. Analysis of this data using grounded theory has revealed that these U.S. American women have created a third social space for themselves, to a large degree retaining their original culture, language, and political loyalty. Their stories contribute to the literature on transnational migration, providing an account of the way migrants of privilege interact with their society of settlement.
ContributorsNielsen, Vanessa (Author) / Mean, Lindsey (Thesis advisor) / Téllez, Michelle (Committee member) / Gruber, Diane (Committee member) / Arizona State University (Publisher)
Created2013
Description
Efficiency of components is an ever increasing area of importance to portable applications, where a finite battery means finite operating time. Higher efficiency devices need to be designed that don't compromise on the performance that the consumer has come to expect. Class D amplifiers deliver on the goal of increased efficiency, but at the cost of distortion. Class AB amplifiers have low efficiency, but high linearity. By modulating the supply voltage of a Class AB amplifier to make a Class H amplifier, the efficiency can increase while still maintaining the Class AB level of linearity. A 92dB Power Supply Rejection Ratio (PSRR) Class AB amplifier and a Class H amplifier were designed in a 0.24um process for portable audio applications. Using a multiphase buck converter increased the efficiency of the Class H amplifier while still maintaining a fast response time to respond to audio frequencies. The Class H amplifier had an efficiency above the Class AB amplifier by 5-7% from 5-30mW of output power without affecting the total harmonic distortion (THD) at the design specifications. The Class H amplifier design met all design specifications and showed performance comparable to the designed Class AB amplifier across 1kHz-20kHz and 0.01mW-30mW. The Class H design was able to output 30mW into 16Ohms without any increase in THD. This design shows that Class H amplifiers merit more research into their potential for increasing efficiency of audio amplifiers and that even simple designs can give significant increases in efficiency without compromising linearity.
ContributorsPeterson, Cory (Author) / Bakkaloglu, Bertan (Thesis advisor) / Barnaby, Hugh (Committee member) / Kiaei, Sayfe (Committee member) / Arizona State University (Publisher)
Created2013
Description
Class D Amplifiers are widely used in portable systems such as mobile phones to achieve high efficiency. The demands of portable electronics for low power consumption to extend battery life and reduce heat dissipation mandate efficient, high-performance audio amplifiers. The high efficiency of Class D amplifiers (CDAs) makes them particularly attractive for portable applications. The Digital class D amplifier is an interesting solution to increase the efficiency of embedded systems. However, this solution is not good enough in terms of PWM stage linearity and power supply rejection. An efficient control is needed to correct the error sources in order to get a high fidelity sound quality in the whole audio range of frequencies. A fundamental analysis on various error sources due to non idealities in the power stage have been discussed here with key focus on Power supply perturbations driving the Power stage of a Class D Audio Amplifier. Two types of closed loop Digital Class D architecture for PSRR improvement have been proposed and modeled. Double sided uniform sampling modulation has been used. One of the architecture uses feedback around the power stage and the second architecture uses feedback into digital domain. Simulation & experimental results confirm that the closed loop PSRR & PS-IMD improve by around 30-40 dB and 25 dB respectively.
ContributorsChakraborty, Bijeta (Author) / Bakkaloglu, Bertan (Thesis advisor) / Garrity, Douglas (Committee member) / Ozev, Sule (Committee member) / Arizona State University (Publisher)
Created2012
Description
In this thesis, a digital input class D audio amplifier system which has the ability
to reject the power supply noise and nonlinearly of the output stage is presented. The main digital class D feed-forward path is using the fully-digital sigma-delta PWM open loop topology. Feedback loop is used to suppress the power supply noise and harmonic distortions. The design is using global foundry 0.18um technology.
Based on simulation, the power supply rejection at 200Hz is about -49dB with
81dB dynamic range and -70dB THD+N. The full scale output power can reach as high as 27mW and still keep minimum -68dB THD+N. The system efficiency at full scale is about 82%.
to reject the power supply noise and nonlinearly of the output stage is presented. The main digital class D feed-forward path is using the fully-digital sigma-delta PWM open loop topology. Feedback loop is used to suppress the power supply noise and harmonic distortions. The design is using global foundry 0.18um technology.
Based on simulation, the power supply rejection at 200Hz is about -49dB with
81dB dynamic range and -70dB THD+N. The full scale output power can reach as high as 27mW and still keep minimum -68dB THD+N. The system efficiency at full scale is about 82%.
ContributorsBai, Jing (Author) / Bakkaloglu, Bertan (Thesis advisor) / Arizona State University (Publisher)
Created2015
Description
Paseo is a postmodern dance performance that reveals the migrational passage of bodies through space and time. Paseo included five dance participants, and the choreographer/pedagogue. Paseo members participated in rehearsal and performance events that completed the investigational study. The creative process focused on integrating somatic and improvisational movement practices to design an environment where dancers could build body-mind awareness and sensitivity to their surroundings, participate democratically, and build agency in their performative decision-making. Paseo investigated the performance as an informal site for learning and understanding of migration, identity, and community. Another objective of Paseo was to explore the performance as an informal site of learning and its transformative effects on lived experiences that occur from the act of doing, the act of becoming, and experiential sensations.
Paseo was part of the Arizona State University’s (ASU) School of Film, Dance, and Theatre Emerging Artists I series, one of two performances that shared the stage with fellow graduate cohort member, Grace Gallagher. Paseo took place at ASU’s Margaret Gisolo Theatre, located at the Physical Education Building East. Performance dates were the following; fix punctuation Friday, November 6th, Saturday, November 7th, and Sunday, November 8th. Paseo had a fourth presentation on Saturday, December 5th, 2015, at Margaret Gisolo Theatre as part of the post-conference performance and dialogue event, “By The People.” The conference was hosted by the Participatory Government Initiative on the ASU Campus from December 3rd-5th, 2015.
Paseo was part of the Arizona State University’s (ASU) School of Film, Dance, and Theatre Emerging Artists I series, one of two performances that shared the stage with fellow graduate cohort member, Grace Gallagher. Paseo took place at ASU’s Margaret Gisolo Theatre, located at the Physical Education Building East. Performance dates were the following; fix punctuation Friday, November 6th, Saturday, November 7th, and Sunday, November 8th. Paseo had a fourth presentation on Saturday, December 5th, 2015, at Margaret Gisolo Theatre as part of the post-conference performance and dialogue event, “By The People.” The conference was hosted by the Participatory Government Initiative on the ASU Campus from December 3rd-5th, 2015.
ContributorsOlarte, David (Author) / Vissicaro, Pegge (Thesis advisor) / Fonow, Mary (Committee member) / Landborn, Adair (Committee member) / Britt, Melissa (Committee member) / Arizona State University (Publisher)
Created2016
Description
My thesis, Asian American and dancing in Arizona; A reflection on the politics of choreographing migration and citizenship in a Red State is a written document that reflects on my creative process of making You don’t belong here, a site-specific, multimedia dance theater piece which I conceived, choreographed, and directed in partial fulfillment of my Master in Fine Arts in Dance degree (MFA) at Arizona State University (ASU) in Tempe, Arizona. I write this reflection from the corporeal perspective of my Asian body. My story comes from my cells that contain the memories of my ancestors, including the recent traumas of my parents that escaped war in China. I am writing from my feminist body, my fleshly archive. I am writing from a historically marginalized perspective. I write this reflection to provide my kinesthetic narrative for those that may not know that I exist at ASU. I consider the conservative political ethos of Arizona as an impetus to discover what it means to be Asian American and dancing in the desert.
ContributorsYoung, Angeline (Author) / Roses-Thema, Dr. Cynthia (Thesis advisor) / Dyer, Dr. Becky (Committee member) / Kwan, Dr. SanSan (Committee member) / Ping, Li-Chiao (Committee member) / Arizona State University (Publisher)
Created2017
Description
The primary question driving this research regards how individuals in mixed-citizenship couples employ different strategies and/or tactics to access and maintain valid immigration status during processes of Adjustment of Status through marriage in the United States. A dominant narrative prevails in the US that immigration through marriage to a citizen confers immediate or an easy pathway to citizenship. For roughly two-hundred thousand immigrant spouses that currently navigate adjustment annually, however, this narrative falls short of and obscures the reality of adjustment processes. There is a lack of focused academic study to help contribute to more accurate public understandings of what these realities are. To combat this false narrative and help fill a gap in research, this work examines how such dominant ideology stems from historic legal inequality and hegemonic discourse, reified through Enlightenment-centric thinking and becoming tangled with state power through Foucault’s conception of the body politic. The day-to-day actions, interactions, and transactions within the body politic and adjustment processes are then put into conversation with De Certeau’s strategies and tactics, providing a means for accentuating how individuals, society, and the state enact specific practices to support or resist Foucauldian technologies of oppression and control. As an exploratory case-study, this work engages four individual partners from two mixed citizenship marriages in a series of three semi-structured, in-depth phenomenological interviews each. Reporting is centered on participant’s histories and adjustment narratives, told through their own voices. Evidence supports that easy pathway public narratives are inaccurate, that adjustment processes assert state power on citizen petitioners and migrant spouses alike, but in different ways, and that they in turn enact complicated and intertwined strategies and tactics to achieve adjustment and resist the oppressive power of the state that is carried through adjustment processes.
ContributorsFurnish, Daniel Robert (Author) / Arzubiaga, Angela (Thesis advisor) / Lara-Valencia, Francisco (Committee member) / Broberg, Gregory (Committee member) / Arizona State University (Publisher)
Created2022
Description
Though LGBT people have been able to seek asylum in the United States since the ‘90s, they still face a multitude of challenges upon arrival in the US as well as in their application process, leaving an air of uncertainty for many whether they will be successful in their cases. This thesis seeks to understand these challenges and how they relate to the perception of identities of LGBT asylum seekers, especially as it relates to Western stereotypes of gender and sexuality. To examine these issues, this thesis includes in-depth interviews with four officials who work closely with asylum seekers to incorporate their input on the asylum system as a whole and how the system impacts LGBT asylum seekers. Based on the analysis of court cases and supplementary qualitative data, this thesis aims to reveal the implications of relying on “consistency” as evidence of credibility based on the stereotypes and how this can harm LGBT asylum seekers as well as others outside of the LGBT community. Finally, this thesis proposes an intervention to alleviate these challenges not only for those in the LGBT community but for everyone seeking asylum in the US and suggests a new framework for how to understand and communicate identities of asylum seekers without limited definitions of their sexual identities or stripping them of autonomy.
ContributorsCordwell, Cailan Rose (Author) / Lee, Sangmi (Thesis advisor) / Wheatley, Abby (Committee member) / Goksel, Nisa (Committee member) / Arizona State University (Publisher)
Created2023