Digital Commons Network^™

Two-Level Multi-Objective Design Optimization Including Torque Ripple Minimization For Stator Excited Synchronous And Flux Switching Machines, Ali Mohammadi, Oluwaseun A. Badewa, Yaser Chulaee, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Electric machine performance can be enhanced through torque ripple mitigation, which reduces mechanical vibrations and improves system stability and operation. This paper proposes a novel two-level optimization method for synchronous flux-switching and hybrid excitation machines, featuring an innovative multi-point spline shaping approach for torque ripple minimization. The study employs experimentally validated models based on a prototype with a similar topology. The optimization process is implemented on two distinct designs: a 20-pole inner rotor PM-excited stator machine and a 28-pole outer rotor DC-excited stator machine. Analysis results demonstrate that the proposed innovative method significantly reduces torque ripple in both configurations. Force …

Ai In Newsrooms: Assessing Perception, Challenges And Possibilities In Bangladesh’S Media Landscape, Nadia Rahman

Theses and Dissertations--Communication

With the relentless progression of technological advancements, artificial intelligence (AI) has become a transformative force across various sectors, and newsrooms are no exception. Developed nations have already integrated AI into journalistic practices, showcasing its versatility in different news functions. However, the developing nations, including Bangladesh, a south Asian nation faces challenges in catching up, marked by technological and economic disparities. As an emerging economic force Bangladesh encounters different obstacles in the adoption of AI in its media landscape. Despite the expansiveness of its media industry, the country grapples with limited technological support and inadequate training opportunities. These challenges bring up …

Black Love, Media Portrayals, And Social Identity, Nigel M. Taylor

Theses and Dissertations--Communication

This dissertation explores how media stereotypes about Black relationships influence Black individuals' perceptions, shaping their understanding and expectations of love. Using social identity theory as a foundation, a mixed-methods approach integrates both qualitative and quantitative methods to examine the impact of media portrayals on self-concept and relationship expectations. The quantitative findings investigate connections between media exposure, self-esteem, and partner preferences, revealing how media shapes ideas about ideal relationships and internalized racial dynamics. The qualitative analysis identifies seven themes that define Black Love and seven themes that depict media stereotypes of Black relationships. The study shows that while media often reinforce …

Going Inside A Church Staff Group: A Qualitative Case Analysis Of Team Characteristics, Decision-Making, And Identity, Hillary Rose Hamilton

Theses and Dissertations--Communication

Many organizations, including churches, rely on leadership groups to coordinate efforts and fulfill their mission. Guided by the characteristics of highly effective teams, the functional theory of group decision-making, and symbolic convergence theory, this study examines how one church staff group engages in decision-making and enacts identity through socioemotional and task-related communication. This group is unique in that its members each lead different areas necessary for the church’s functioning. Data for this qualitative case-study consists of semi-structured interviews with each group members and five meeting observations. Findings provide insight into the group’s dynamics, decision-making process, and identity. However, of most …

Development Of A Ghrelin Deacylase To Attenuate Drug Reward And Associated Effects Of Methamphetamine, Madeline J. Stewart, Huimei Wei, Nellore Bhanu Chandar, Fang Zheng, Chang-Guo Zhan

Pharmaceutical Sciences Faculty Publications

All addictive substances directly or indirectly interact with the dopamine reward system to alter the brain’s dopamine receptor activities. It is essential for a truly effective addiction medication to attenuate substance reward and normalize the brain’s physiological functions. Conventional pharmacological intervention approaches to the treatment of substance addiction usually aim to develop and deliver a potential therapeutic agent to the brain to directly block or decrease actions of the substance or its therapeutic target in the brain. However, it is a grand challenge to attenuate the substance reward without affecting the normal physiological functions of brain receptors or transporters. Here, …

Effects Of Fentanyl-Laced Cocaine On Circulating Ghrelin, Insulin, And Glucose Levels In Rats, Huimei Wei, Elise C. Maul, Annet Kyomuhangi, Shawn Park, Maddilynn L. Mutchler, Chang-Guo Zhan, Fang Zheng

Pharmaceutical Sciences Faculty Publications

Opioid mixed with cocaine has been increasingly implicated in overdose deaths, including both intentional co-use of opioid and cocaine and fentanyl-adulterated drug supply. As ghrelin plays an important role in drug reward and can also influence insulin, this study aimed to assess responses of the circulating ghrelin, insulin, and glucose levels to the combined use of fentanyl and cocaine (a polydrug) in rats by performing combined animal behavioral experiments and biochemical analysis. The experimental data consistently revealed that the fentanyl and cocaine co-use can significantly elevate both the acyl-ghrelin and desacyl-ghrelin levels and significantly decrease the insulin level without significant …

Development Of Zafirlukast Analogues For Improved Antithrombotic Activity Through Thiol Isomerase Inhibition, Justine A. Keovilay, Kaitlind C. Howard, Kirk A. Taylor, Sabeeya Khan, Sienna E. Wurl, Melanie K. Szahaj, Tanya Sage, Nishad Thamban Chandrika, Caixia Hou, Oleg V. Tsodikov, Jonathan M. Gibbins, Sylvie Garneau-Tsodikova, Daniel R. Kennedy

Pharmaceutical Sciences Faculty Publications

Background:   Thiol isomerases play essential and nonredundant roles in platelet activation, aggregation, and thrombus formation. Thiol isomerase inhibitors have the potential to overcome the 2 major drawbacks of current antithrombotic therapies, as they target both arterial and venous thrombosis without enhancing bleeding risks. Recently, a Food and Drug Administration–approved drug, zafirlukast (ZAF), was shown to be a promising pan-thiol isomerase inhibitor. The objective of this study is to develop analogues of ZAF with optimized thiol isomerase inhibition and antithrombotic activity.   Methods:   Thirty-five ZAF analogues were tested in an insulin turbidometric assay for thiol isomerase inhibition. Analogues were tested for platelet …

Ribbon Schur Functors, Keller Vandebogert

Mathematics Faculty Publications

We investigate a generalization of the classical notion of a Schur functor associated to a ribbon diagram. These functors are defined with respect to an arbitrary algebra, and in the case that the underlying algebra is the symmetric/exterior algebra, we recover the classical definition of Schur/Weyl functors, respectively. In general, we construct a family of 3-term complexes categorifying the classical concatenation/nearconcatenation identity for symmetric functions, and one of our main results is that the exactness of these 3-term complexes is equivalent to the Koszul property of the underlying algebra A. We further generalize these ribbon Schur functors to the notion …

Where Does The Money Go? Three Essays On Intergovernmental Transfers, Spending, And Poverty In Indonesia, Jacobus Cd Rijoly

Theses and Dissertations--Public Policy and Administration

Indonesia allocates substantial intergovernmental transfers to local governments; nonetheless, the decrease in poverty remains limited. This dissertation posits that the binding constraint is institutional, specifically the regulations and incentives that dictate the extent to which funds are allocated from the government to designated programs. Institutional pass-through refers to the fraction of a transfer that is allocated to a program expenditure. The three essays integrate estimation, budget composition evidence, and a formal model to explain both modest average effects and heterogeneity across regions and programs.

The first essay evaluates the impact of transfers on provincial poverty from 2001 to 2022 by …

Daily Anxiety And Dual Use Of Cigarettes And Vaping Products: Disparities By Sex, Race, And Ethnicity In U.S. Adults, Maggie K. Richardson, Delvon T. Mattingly, Osayande Agbonlahor, Alison C. Mcleish, Joy L. Hart, Kandi L. Walker

Educational, School, and Counseling Psychology Faculty Publications

Objective:

Despite a decline in cigarette use, the dual use of cigarettes and electronic vaping products (EVPs) is a concerning pattern of nicotine consumption in the United States. Anxiety, a risk factor for tobacco use, may contribute to dual-use patterns; however, the association between daily anxiety symptoms and dual use of cigarettes and EVPs is not known. This study investigated associations between daily anxiety symptoms and dual cigarette and EVP use overall and by sex, race, and ethnicity.

Method:

Data are from the 2020–2022 National Health Interview Survey (n = 83,544). Multinomial logistic regression models, adjusted for sociodemographic factors, …

Sonic Photovoice And Critical Literacy: Listening To And Sounding What Is Me, What Is Not Me, And What Is Between, Alexander Chadwell

Theses and Dissertations--Curriculum and Instruction

This study examined sonic photovoice, a sound-based arts research method, as a tool for developing critical literacy in middle and high school students. Participants found and recorded sounds related to three categories, “what is me,” “what is not me,” and “what is between,” composed a sound collage using the sounds, and reflected on the experience. Framed by 4EA cognition, participatory sensemaking, and relational and everyday aesthetics, the study explored how listening and sounding shaped students’ conceptions of self and reality. Data from recordings, journals, and interviews suggest that the sonic engagement can foster relational, emergent understandings of self and …

Regulation Of Human Dna Mismatch Repair, Breanna Knicely

Theses and Dissertations--Toxicology and Cancer Biology

The DNA mismatch repair (MMR) pathway identifies and corrects misincorporations that arise during DNA replication. MMR is a pathway that is critical for maintaining genomic stability. Mutations within the MMR pathway, both germline and somatic, lead to the development of cancer. There are a variety of mechanisms that regulate the MMR pathway including protein-protein interactions, DNA damage response, and post-translational modifications. In this study, we aim to dive deeper into each of these mechanisms to obtain novel information regarding the mechanisms and regulation of human DNA MMR. In this study we generated hExo1 constructs mutating Exo1’s interactions with MSH2 and …

The Paradox Of Survival: Gendered Food Insecurity, Labor Inequalities, And Coping Strategies During The 2023/4 Drought In Eastern Ethiopia, Meron E. Lemma

Theses and Dissertations--Geography

In drought-prone regions of Eastern Ethiopia, recurring droughts profoundly reshape everyday life in ways that deepen existing gendered inequalities. Drawing on fieldwork conducted in Fedis district, including semi-structured interviews with women, project implementers, and government officials, as well as group discussions with community members, this study explores how women experience, navigate, and resist the gendered impacts of drought. By attending to the sociopolitical dynamics of drought and the development interventions that accompany it, I analyze how these forces restructure labor, land, food systems, and authority in ways that reproduce and exacerbate existing inequalities. Women’s coping strategies, ranging from begging and …

Commercial Attention Spaces: A Century Of Discourses, Measurements, And Models Of Attention In The Construction Of U.S. Advertising Markets, Jacob Saindon

Theses and Dissertations--Geography

A vast assemblage of networked devices populate our everyday spaces. Concomitant with the increasing ubiquity of media devices are advertisements. Indeed, many networked devices, specifically the “free-to-use” software applications, websites, or platforms displayed through them, are advertising-dependent. An assortment of firms within the commercial media industry—brands, agencies, publishers, vendors—work in concert to sustain a market for advertising. The core operation of the commercial media industry, I argue, is the production and exchange of attention as an economic object. In this study, I approach the production of attention and the framing of its markets as spatial processes. The continued growth of …

Nicorandil Treatment Improves Survival And Spatial Learning In Aged Granulin Knockout Mice, Dana M. Niedowicz, Wang-Xia Wang, Paresh Prajapati, Yu Zhong, Shuling X. Fister, Colin B. Rogers, Pradoldej Sompol, David K. Powell, Indumati Patel, Christopher M. Norris, Kathryn E. Saatman, Peter T. Nelson

Sanders-Brown Center on Aging Faculty Publications

Mutations in the human granulin (GRN) gene are associated with multiple diseases, including dementia disorders such as frontotemporal dementia (FTD) and limbic-predominant age-related TDP-43 encephalopathy (LATE). We studied a Grn knockout (Grn-KO) mouse model in order to evaluate a potential therapeutic strategy for these diseases using nicorandil, a commercially available agonist for the ABCC9/Abcc9-encoded regulatory subunit of the “K⁺ATP” channel that is well-tolerated in humans. Aged (13 months) Grn-KO and wild-type (WT) mice were treated as controls or with nicorandil (15 mg/kg/day) in drinking water for 7 months, then tested for neurobehavioral …

Gilead: Municipal Liability For Punitive Damages Under The Fair Housing Act, Robert G. Schwemm

Law Faculty Scholarly Articles

The 1968 Fair Housing Act (“FHA”) has always been understood to apply to local governments, which have proved to be among the most frequent and significant violators of this law, especially in their opposition to housing of particular value to racial minorities and persons with disabilities. Yet not until the Second Circuit’s decision last year in Gilead Community Services, Inc. v. Town of Cromwell did an appellate court approve an FHA-based punitive-damage award against a municipality. Before Gilead, district courts had generally blocked such awards, applying § 1983’s immunities to protect local governments and their officials from the FHA’s …

How Grand Jury Secrecy And Bias Protects And Perpetuates Police-Suspect Impunity, Ilana M. Friedman

Law Faculty Scholarly Articles

This Article proceeds in four parts. Part I introduces the theoretical frameworks for various questions involving police-suspect grand juries, including the structure and function of contemporary grand juries, the law surrounding examinations into an officer’s use of force, modern prosecutorial influences, findings from social psychologists on the impacts of diversity on jury decision-making practices, and how police-suspect grand juries implicate unique political pressures.

Part II presents a description of original methods of data collection. To investigate this setting, forty-seven in-depth, semi-structured interviews with twenty-one respondents in five field sites around the country was conducted. Respondents included civilians and legal

professionals …

Deceptive Exploitation: Deepfakes, The Rights Of Publicity And Privacy, And Trademark Law, Michael D. Murray

Law Faculty Scholarly Articles

This article addresses the application of right of publicity, right of privacy, and trademark law to the problem of deepfakes. It will explore the routine and not so routine ways that personality and persona attributes are exploited in traditional privacy contexts and publicity contexts. It will also examine the use of First Amendment defenses in legal actions traditionally associated with the exploitation of celebrities, sports figures, and other persons under state law theories of name-image-likeness exploitation, as well as and federal trademark law theories of false endorsement and false designation of origin.

Part I provides an introduction and background to …

Networking Among The Human Capitalists: The Organizational Dynamics Of Change And Power In The Large Corporate Law Firm, Alan James Klugel

Law Faculty Scholarly Articles

Law firms are unique creatures. They are subject to market pressures as well as ethical obligations and professional norms. They are in direct competition with other organizations for both clients and the lawyers necessary to perform work for those clients. They are comprised of lawyers who are simultaneously cooperative and competitive with one another. They are neither hierarchy nor anarchy, neither a collection of independent actors nor an entity under which its employees are subsumed. Instead, they are organizations shaped and reshaped by their members; organized around shared goals, internal contestations and external constraints; and defined by the ties between …

History, Tradition, And Voter Registration, Joshua A. Douglas

Law Faculty Scholarly Articles

History and tradition are dominating the Supreme Court, which has invoked history and tradition to curtail some rights, such as abortion, while using it to elevate other rights, such as the right to bear arms. Might history and tradition also cause the Court to strike down new restrictions on the right to vote, even if doing so would cut against the current Court’s narrow protection of voting rights? Disputes over voter registration restrictions will pose that very question. Many states have recently implemented onerous rules on voter registration, especially targeting third-party voter registration organizations. Congress is also debating the SAVE …

Gender Disparity In Social Security, Kathryn L. Moore

Law Faculty Scholarly Articles

Facially neutral, the U.S. Social Security system structurally discriminates against women because it prefers those who successfully fulfill the traditional male breadwinner role rather than the traditional female caregiving role. Overall, women receive lower worker benefits, are much more likely to claim spouse and surviving spouse benefits, and are more dependent on Social Security for their retirement benefits than are men.

This Article assesses Social Security’s disparate treatment of women and how Social Security might be reformed to enhance benefits for women. It begins by providing a broad overview of Social Security benefits. It then discusses how women and couples …

The Migration Of Abolition Theory, Matthew Boaz

Law Faculty Scholarly Articles

This Article considers whether and how theories of abolition developed by criminal law scholars are transferrable to the realm of immigration enforcement. A key question is how abolitionist principles might be employed in support of critiques of the United States’ immigration regulatory regime in the same way that these principles have been deployed in denouncing racialized policing and an injurious, industrialized prison system.

This Article makes two contributions: First, it identifies and illuminates a methodology adopted by critical and decarceral criminal law scholars: (i) denouncing the harms of a structural system, (ii) identifying the normative justification(s) for this system, and …

Knee Health Is A Major Determinant Of Mobility Across The Healthspan, Brandon M. Peoples, Kenneth Harrison, Michael A. Samaan, Christopher B. Mobley, David T. Redden, Jaimie A. Roper

Kinesiology and Health Promotion Faculty Publications

Knee health constitutes a pivotal determinant of locomotor function and overall mobility throughout the healthspan. Impairments in knee function lead to a series of biomechanical and physiological alterations that pose substantial public health challenges and economic burdens worldwide. This review synthesizes evidence that delineates the complex and multifaceted relationship between knee health and mobility, emphasizing the interplay across various domains in adult populations. Knee health is conceptualized as a dynamic, interconnected system whereby structural integrity, neuromuscular mechanisms, biomechanical adaptations, and functional mobility are intricately interrelated through cascades of mechanistic processes operating across different temporal stages. A comprehensive understanding of these …

Alternative Visions Of Swedish State Feminism, Lukas Bullock

Theses and Dissertations--Gender and Women's Studies

Sweden has been lifted as a prominent example of a successful feminist policy enactor, and has built credibility as a humanitarian actor both domestically and transnationally. Simultaneously, intersectionally marginalized groups have attested to patterns of social exclusion and feelings of political disenfranchisement in Swedish society, calling into question Sweden’s reputation for feminist exceptionalism. This dissertation project centers on unpacking this dynamic by examining how Swedish gender equality policymaking institutions design and implement feminist policy, and how those efforts are interpreted and contested by intersectionally marginalized groups of Afro-Swedish feminist activists. Drawing from a mixed-methods framework that includes feminist ethnography (interviews, …

Black Women, Bold Science: Navigating Race, Gender, And Identity In Science, Mia L. Brown

Theses and Dissertations--Science, Technology, Engineering, and Mathematics (STEM) Education

This research study examines the challenges Black women encounter when in predominantly white, male academic and professional science settings, where they experience dual discrimination because of their race and gender. These biases perpetuate the negative stereotype that Black women are less competent than white men. This mixed methods study examines how Black women navigate their race, gender, and science identities within predominantly white institutions through their doctoral programs and professional science careers. The study implements Critical Race Mixed Methodology to combine survey data for a wide reach with interview data for detailed exploration. The study involved eight Black women science …

The Use Of Peer-To-Peer Observation And Feedback Cycles To Address Factors Impacting Perceived Professional Self-Efficacy Of School Librarians In A Kentucky School District: A Mixed Methods Action Research Study, Kelli D. Reno

Theses and Dissertations--Educational Leadership Studies

Research has shown that the school librarian occupies a unique and singular role in school settings. As such, their belief in their ability to master professional competencies is often self-referential and subject to negative influence from external organizational forces. This Mixed-Methods Action Research study explored the effect targeted institutional support for professional practice, via Peer-to-Peer Observation and Feedback cycles, has on perceptions of professional self-efficacy among the school librarians in one district.

A literature review focused on self-efficacy theory and school library research relating to role perception, organizational positioning, professional competencies, and job satisfaction anchored the diagnosis phase of this …

Leadership Vision For Technology Use Post Covid-19, David J. Lucian

Theses and Dissertations--Educational Leadership Studies

The integration of 1:1 devices in K–12 education has been widely debated for over two decades, yet few studies have addressed the rapid implementation that occurred post–COVID-19. This study examined a K–8 school in an urban Title I district that, prior to the pandemic, lacked the funding and infrastructure for a 1:1 model. Federal relief funding enabled a swift transition to virtual learning, catalyzing long-term shifts toward 21st-century instructional practices. Using a Mixed-Methods Action Research (MMAR) design, this study explored teacher experiences, challenges, and support needs during the transition. Data collection included interviews with middle school teachers and an analysis …

A Qualitative Study: Supports Enabled By K-8 School Leaders To Bolster The Success Of Teachers In Their Mathematics Departments, Elizabeth A. Mercurio

Theses and Dissertations--Educational Leadership Studies

Despite decades of national policy efforts and reforms, mathematics achievement in public education in the United States, particularly in urban areas, remains persistently low, underscoring the critical need for effective leadership and targeted professional development to maximize student learning. There is limited research on the leadership approaches of building-level school leaders who have effectively strengthened mathematics departments and enhanced teacher capacity to improve student achievement. This qualitative study employed semi-structured interviews with building-level school leaders who have demonstrated success in fostering highly effective mathematics instruction to examine the leadership styles of effective urban school leaders and their use of professional …

Navigating Stress In Higher Education Leadership: The Role Of Mindful Meditation For Women Administrators, Christine T. Harper

Theses and Dissertations--Educational Leadership Studies

Women higher education administrators encounter distinct stressors which can significantly impact wellbeing and lead to burnout. These challenges include implicit bias, difficulty achieving work-life balance, and increasing institutional expectations. This study utilizes a Mixed Methods Action Research (MMAR) framework to assess stress levels, trait mindfulness, coping mechanisms, and the effectiveness of a structured mindfulness-based intervention. While the quantitative analysis revealed only a slight increase in trait mindfulness and no notable reduction in stress levels, the qualitative findings showcased meaningful personal benefits to the participants. They reported heightened awareness of stress triggers, improved emotion regulation, and an ability to apply the …

Rasch Model Utilization Towards Developing An Instrument For Measuring Creative Drive, David W. Stenulson

Theses and Dissertations--Educational Policy Studies and Evaluation

Creativity is commonly assessed across undergraduate programs as a graduation requirement. However, a considerable amount of literature suggests that creativity is a complex, multidimensional construct, and more efficient ways of assessing it should be explored with multiple measures representing different creative aspects. This exploratory pilot study sought to take steps in developing a supplemental instrument designed to measure creative drive, a theoretical construct with predictive potential for future creative output. In order to gain a greater understanding of the nature of creative drive and gauge accuracy of initial thinking in terms of item writing, the Creative Drive Assessment (CDA), a …