Dissertation Defense Announcements

Candidate Name: Nicki Ayn Kincaid
Title: A WINDOW INTO MY MIRROR: AN AUTOETHNOGRAPHY OF CULTURALLY SUSTAINING PEDAGOGY WITH LGBTQ+ STUDENTS
 April 19, 2021  11:00 AM
Location: Zoom
Abstract:

This research portrays a personal journey of a middle school language arts teacher working with LGBTQ+ students. Using autoethnography as the method, this study interprets personal narratives about the researcher’s adolescent identity development in connection with current culturally relevant teaching practices, specifically for LGBTQ+ students. As the subject of my own study, I focused on the relationships and cultural immersion experiences of my personal identity development. This qualitative research method invites the reader to gain insight into the subculture of this study through the experiences of the author. Perspective, being a root of the study, is unique to the author as well as the reader. Through this autoethnography, the reader is able to gain insight into the formation of a classroom teacher’s identity that shape attitudes and practices within the classroom. This study represents the seeds planted to grow the tree that fosters a culturally sustained classroom.



Candidate Name: Khalil Salim
Title: EXAMINING THE RELIABILITY AND VALIDITY OF THE SECOND VERSION OF THE VULNERABILITY INDEX-SERVICE PRIORITIZATION DECISION TOOL (VI-SPDAT) FOR SINGLE ADULTS
 April 19, 2021  10:00 AM
Location: Zoom
Abstract:

Many communities use the Vulnerability Index-Service Prioritization Decision Tool (VI-SPDAT) to determine which individuals and/or households experiencing homelessness are most vulnerable and therefore prioritized for the limited housing resources available. Because of the tool’s widespread use and implications for housing, the present study examined the reliability and validity of the second version of the VI-SPDAT for Single Adults with a sample of individuals experiencing chronic homelessness in Charlotte, NC. Results suggest that the VI-SPDAT is strongest in measuring areas associated with psychological symptomatology and/or mental health, but that the scale had significant limitations in its internal consistency, ability to adequately measure the construct of vulnerability, and convergent, concurrent, and predictive validity. Furthermore, findings raise concerns related to the VI-SPDAT’s ability to adequately reflect the complex and dynamic behavioral, social, and medical needs of those experiencing chronic homelessness. Taken together, the findings from this study point to issues with the VI-SPDAT’s reliability and validity and provide actionable information to help inform areas that should be strengthened and/or modified to better capture the needs and vulnerability of individuals experiencing homelessness. It is hoped the findings from this study can inform local efforts for assessing the needs and functioning of individuals experiencing homelessness and, more importantly, provide information that can be used to ensure equitable allocation of services in the homeless service system.



Candidate Name: Corrine Harris
Title: DIFFERENCES BETWEEN RESIDENT ADVISORS AND UNDERGRADUATE RESIDENTIAL STUDENTS ON RESILIENCE, MENTAL HEALTH, BURNOUT, AND PERCEIVED STRESS
 April 19, 2021  9:00 AM
Location: Zoom
Abstract:

The mental health and well-being of college students has become a growing concern for colleges and universities. Research has shown that prevalence rates of mental health in colleges students is growing and there are multiple complicating impacts of mental health on student well-being and academic success. Resident advisors play a crucial role in campus life as student employees that live amongst students and have a high level of responsibility as first responders to emergencies and rule enforcers. Despite their importance, there is little research on the mental health of resident advisors and how different aspects of the resident advisor role impact their mental health.
The purpose of this study was to examine the differences between resident advisors and undergraduate residential students on measures of mental health, burnout, and perceived stress. The study also examined how different aspects of the resident advisor position may impact resident advisor mental health, burnout, and stress and if resilience had a mediating impact on these variables. A total of 551 college students (including 84 resident advisors) were included in this research study. Participants completed an online survey, which included the Mental Health Inventory, Copenhagen Burnout Inventory, Perceived Stress Scale, Scale of Protective Factors, and a demographic questionnaire. The multivariate analysis indicated that there were no statistically significant differences between resident advisors and undergraduate residential college students on mental health, burnout, and perceived stress. A multivariate analysis of covariance indicated that there was not a significant difference between the groups on the combined dependent variables after controlling for resilience. The findings of the present study suggest that resident advisors and residential college students are experiencing symptoms of mental health, burnout, and perceived stress. Results suggest that university staff who work with students should be aware of the mental health challenges of students and work to find ways to support them.



Candidate Name: Emmanuel K Eghan
Title: Examining Policy, Enabler and Access factor effects on US State Medicaid Pharmaceutical Utilization and Expenditures.
 April 19, 2021  8:00 AM
Location: Zoom
Abstract:

Prescription drug expenditures and utilization are the fastest and most widely varying expenditures within Medicaid programs across US states. The passage of the Affordable Care Act (ACA) in 2010 and the subsequent Medicaid state expansions resulted in very large coverage gains among several demographics at the state level. A number of studies prior to ACA highlighting determinants of health utilization and expenditures have been identified and studied discreetly, however, the relationships among these determinants, and the latent constructs of policy, access, enabling health system and predisposing characteristics have not been tested concurrently in relation to drug expenditures
Data from the Centers for Medicare and Medicaid Services ( CMS), US Department of Labor , Department of Education, and state Medicaid programs were merged to create a balanced panel data (n=350 observations and 53 variables over a seven ( 7) period from 2009 to 2015); and was analyzed using random effects (RE) panel regression analysis to estimate a model for drug expenditure across US state Medicaid programs.
Based on Andersen’s Behavioral Model of Health Services, and using a Structure Equation Modeling the study also examined the relationships between and tested the hypothesized effects of policy, access and predisposing factors on State Medicaid expenditures. Findings on effects of cost containment policies, ACA expansion, access to health care facilities and demographic distribution within Medicaid and an econometric model that estimates state drug expenditures are included followed by discussions, limitations and future directions for research



Candidate Name: YAFENG WANG
Title: Power Electronics Assisted Voltage Regulators for Modern Distribution Systems
 April 16, 2021  3:00 PM
Location: Zoom
Abstract:

Step voltage regulator (SVR) has been utilized in the power distribution systems for decades. The induced arc from the conventional SVR tap change and the voltage instability from the renewable energy penetration impose constraints on the conventional SVRs’ lifetime. With more distributed power generation and renewable energy penetration, voltage fluctuation and power generation variation can be observed more frequently in the modern power distribution network.
Motivated by the issues mentioned above, several PE-assisted arcless tap change topologies are proposed to reduce the contact erosion rate of tap changers in SVR. The system efficiency is the same with the conventional SVR in normal operation, while the converter power rating is only 0.3% of the total system power, which also reduces the system cost compared with the full power electronics solutions. Based on the proposed arcless tap change mechanism, a hybrid voltage regulator is proposed. Stepless load voltage regulation is achieved while the tap changer mechanism remains in the system, which helps to promote the upgrade to the existing power distribution systems.



Candidate Name: Janice Wise
Title: THE INFLUENCE OF LOW-INCOME HOUSEHOLDS: SOCIAL COHESION ENTREPRENEURSHIP FORMALIZATION MODERATED BY FAMILY SUPPORT, RISK PROPENSITY, AND LOCUS OF CONTROL
 April 16, 2021  11:00 AM
Location: Virtual
Abstract:

Poverty is a global problem dating back to the early nineteen hundred. Issues, such as income inequalities, food insecurities, poor education, lack of good health care, and housing challenges haven often been highlighted in research. The plight of low-income households remains an important topic. Prior research shows entrepreneurship as a possible answer, but how could low-income households take advantage of the opportunity that entrepreneurship provides? Researchers have also shown that a high percentage of low-income households engage in informal entrepreneurship because of the low cost of entry. Not all low-income household that are entrepreneurs’ practice in the informal sector. Thus, what are the factors that contribute to low-income households’ participation in the formalization of entrepreneurship? This dissertation empirically investigates the relationship between social cohesion and the degree of entrepreneurship formalization of low-income households. It further studies the moderating variables family support, risk propensity, and locus of control. The findings suggest that social cohesion has a significant impact on the degree of entrepreneurship formalization, but family support and locus of control do not moderate the relationship. However, risk propensity has a significant negative influence on the relationship between social cohesion and the degree of entrepreneurship formalization.



Candidate Name: Elina Shepard
Title: Impacts of Light Rail Investment on Commercial Landscapes in Transit Neighborhoods
 April 16, 2021  10:00 AM
Location: Zoom


Candidate Name: OKKYUN IM
Title: AN OPTIMIZATION STUDY OF A CUSTOMIZED KINETIC FACADE SYSTEM USING REGRESSION MODEL
 April 16, 2021  10:00 AM
Location: ZOOM
Abstract:

There has been a considerable interest in the development and installation of the building facade system using a dynamic motion which is called a kinetic facade system. Since the kinetic facade system can respond to the change of the external weather conditions, this can play a key role in saving building energy consumption and satisfying occupant’s thermal and visual comforts. Although the building application of the kinetic facade systems continues to increase because of its benefits, the features of the kinetic system cause relatively high installation costs compared to a conventional fixed facade system. Therefore, evaluating a performance of the kinetic facade system in the early design stages is becoming more important.

However the current process for evaluating the performance using a simulation tool is complicated and time-consuming process because the dynamic motion of the kinetic system. It takes a significant amount of time due to the repetitive simulation process associated with complex geometry and dynamic movements. Therefore, most studies on kinetic performance have limitations in grasping the range of time related to performance and specificity of kinetic movement.

Thus, this research suggested a prediction methodology using a regression model for a customized kinetic façade system. The regression model allowed user to compare the performance of the kinetic facade system without a simulation process. Also, it can be used to predict an optimal angle of a kinetic motion at a specific point in time.



Candidate Name: OKKYUN IM
Title: AN OPTIMIZATION STUDY OF A CUSTOMIZED KINETIC FACADE SYSTEM USING REGRESSION MODEL
 April 16, 2021  10:00 AM
Location: ZOOM
Abstract:

There has been a considerable interest in the development and installation of the building facade system using a dynamic motion which is called a kinetic facade system. Since the kinetic facade system can respond to the change of the external weather conditions, this can play a key role in saving building energy consumption and satisfying occupant’s thermal and visual comforts. Although the building application of the kinetic facade systems continues to increase because of its benefits, the features of the kinetic system cause relatively high installation costs compared to a conventional fixed facade system. Therefore, evaluating a performance of the kinetic facade system in the early design stages is becoming more important. However the current process for evaluating the performance using a simulation tool is complicated and time-consuming process because the dynamic motion of the kinetic system. It takes a significant amount of time due to the repetitive simulation process associated with complex geometry and dynamic movements. Therefore, most studies on kinetic performance have limitations in grasping the range of time related to performance and specificity of kinetic movement. Thus, this research suggested a prediction methodology using a regression model for a customized kinetic façade system. The regression model allowed user to compare the performance of the kinetic facade system without a simulation process. Also, it can be used to predict an optimal angle of a kinetic motion at a specific point in time.



Candidate Name: Ping Mao
Title: The development of Chinese overseas joint venture universities and their role in Chinese higher education
 April 16, 2021  9:30 AM
Location: Zoom
Abstract:

This dissertation investigates a newly emerging phenomenon in Chinese higher education in which a Chinese university partners with an overseas university to open a new university campus in China which began in 2004. This form of university was established in the context of economic growth and education reform in Chinese society. It has brought a change to the rebuilding of nonpublic higher education in China since the late 1980s. It also reinforces the emphasis on internationalization and diversification of higher education set by Chinese government for the 21st century. However, as a joint venture in higher education, this form of education is still unknown to many education scholars with respect to its formation mechanisms and motivations. Moreover, given the changing landscape of Chinese higher education, the current status and future prospects of this type of university are worthy of study considering its benefits as well as challenges for Chinese and the global higher education development. What is more, the social, economic, and policy implications of these universities are even more enormous than its education perspective.
This dissertation is an exploratory case study involving intensive interviews with seven administrators and nine students from four institutions in this study along with content analysis of mission statements and school documents involving all nine institutions in this group. Findings suggest that the emergence of joint venture universities is consistent with the growing trend of globalization and internationalization in worldwide higher education development. Motivations and goals of institutions in pursuing this cooperation may vary among countries. China’s governmental involvement in this kind of education signifies a new trend in higher education collaboration that incorporates governmental interest in political, economic, and global pursuits rather than focusing on the education per se. Thus, this type of joint venture universities is neither public nor private. An unexpected finding is that the emergence of this form of education did not improve education inequality existing in Chinese higher education due to geographical location but reinforce the reproduction of inequality. Also, the small number of special joint venture universities in China seem to aim more for advancing China’s international goals to engage on the global stage, foster China’s active globalization efforts, and prepare Chinese students to be academically and socially ready for globalization. These findings thus have substantial implications for policymakers in relevant areas and help them in policymaking decisions.