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Efficient Numerical Optimization For Parallel Dynamic Optimal Power Flow Simulation Using Network Geometry, Rylee Sundermann
Efficient Numerical Optimization For Parallel Dynamic Optimal Power Flow Simulation Using Network Geometry, Rylee Sundermann
Electronic Theses and Dissertations
In this work, we present a parallel method for accelerating the multi-period dynamic optimal power flow (DOPF). Our approach involves a distributed-memory parallelization of DOPF time-steps, use of a newly developed parallel primal-dual interior point method, and an iterative Krylov subspace linear solver with a block-Jacobi preconditioning scheme. The parallel primal-dual interior point method has been implemented and distributed in the open-source PETSc library and is currently available. We present the formulation of the DOPF problem, the developed primal dual interior point method solver, the parallel implementation, and results on various multi-core machines. We demonstrate the effectiveness our proposed block-Jacobi …
The Impact Of Facebook Affordances On Doomscrolling Behaviors During The Relational Dissolution Process, Emma Williams
The Impact Of Facebook Affordances On Doomscrolling Behaviors During The Relational Dissolution Process, Emma Williams
Electronic Theses and Dissertations
The affordances provided by social networking sites (SNSs) impact how different social media platforms are used. Facebook has unique affordances such as ease of use, community, information seeking, escapism, and common interests that impact Facebook use. Interpersonal electronic surveillance, categorized as doomscrolling for this study, is a behavior of continuous scrolling and consumption of negative content. Facebook affordances, paired with digital artifacts from terminated relationships, create an environment for doomscrolling (IES) behavior. Building off of the “grave-dressing” and “resurrection” stages of relational dissolution, I examined the relationships of these Facebook affordances with doomscrolling (IES) behaviors through an online survey (N …
Examining Culture In Rural High-Poverty Schools, Kassandra E. Champion
Examining Culture In Rural High-Poverty Schools, Kassandra E. Champion
Electronic Theses and Dissertations
This study utilized quantitative survey methods to evaluate how rural schools are affected by students living in poverty. There are many attributes to a school’s culture. Successful leadership, high-quality teachers, and active students are three of the biggest factors. Schools located within a 265-mile radius from Newell, SD with a school population of less than 600 comprised the population for this study. This area encompassed schools in five states. Schools were contacted, surveyed, and assessed based on quantitative statements and open-ended questions. Considering that a school is dynamic, the high school teachers from four different subjects were all assessed. 58% …
Design Of Human Inspired Feet For Mithra, A High-Performance Humanoid Robot, Spencer Lyle Brewster
Design Of Human Inspired Feet For Mithra, A High-Performance Humanoid Robot, Spencer Lyle Brewster
Electronic Theses and Dissertations
This thesis explores the foot design for the new humanoid robot Mithra, with the goal to improve impact mitigation, natural gait throughout the gait cycle and balance. Using human gait parameters, a stiff aluminum foot was designed to emulate human center of pressure rollover trajectories. In addition, a 2D dynamic Finite Element Analysis (FEA) of the gait cycle was created in Abaqus to rapidly prototype foot designs. Data from the FE model provided impact forces, parameters for distal foot power evaluation and maximum lean angles. From this model a flexible nylon foot was optimized for the given design objectives. The …
Exitosas On Their Own Terms: Centering Latina Testimonios To Understand Latina Undergraduates’ Student Success Beliefs, Lauren R. Contreras
Exitosas On Their Own Terms: Centering Latina Testimonios To Understand Latina Undergraduates’ Student Success Beliefs, Lauren R. Contreras
Electronic Theses and Dissertations
Utilizing testimonio methodology grounded in LatCrit and Chicana Feminism, this research centered the voices of 11 Latina undergraduates attending a 4-year private, predominantly white institution in the Western U.S. to understand how they defined and measured their own success in higher education. Traditional success measures focus on the institution's dominant measures, such as graduation and persistence rates. These success measures do not fully represent Latina/o/x values nor how Latinas undergraduates define their own success in higher education. This research revealed that Latina undergraduates define their success by academic achievement, career attainment, Latina/o/x values of familismo and comunidad, and their …
“Damned If Ya Do, Damned If Ya Don’T”: A Critical Narrative Inquiry Exploring The Gendered Racism Experienced By Black Women Housing Professionals In Higher Education, Shaniquè Jazmine Broom
“Damned If Ya Do, Damned If Ya Don’T”: A Critical Narrative Inquiry Exploring The Gendered Racism Experienced By Black Women Housing Professionals In Higher Education, Shaniquè Jazmine Broom
Electronic Theses and Dissertations
Between 1999 and 2018, there was an 11% decrease in Black women staff and administrators at post-secondary institutions. This study utilized Black Feminist Thought and Sista Circle Methodology to uncover how Black women reflected on experiences of and coped with gendered racism at PWIs. Participants offered reflections on their relationships with Black women and men, white men and women, and students. Black women shared their reflections with discrimination and a deceptive institutional culture. Black women also discussed utilizing several coping strategies such as hyper-awareness, hypervigilance, enacting personal and professional boundaries, avoiding hypervisibility and engaging in personal and familial connections with …
Equity Battles: Multicultural Leadership For English Language Learner Students, Alfredo Pargas
Equity Battles: Multicultural Leadership For English Language Learner Students, Alfredo Pargas
Electronic Theses and Dissertations
The focus of this study was to increase teachers’ and school leaders’ capacity and awareness to be better multicultural leaders for English Language Learner (ELL) students. This study produced several recommendations to address this issue. During this study, I used improvement science as the methodology and included a variety of stakeholders as participants. The conceptual framework used to guide this study included community cultural wealth and funds of knowledge. Using both the voices of ELL families and the input of the school equity team, which includes teachers and a school leader, we collaboratively created a six-stage intervention program to increase …
Interrogating Whiteness In Graduate Education Culture: A Phenomenological Exploration Of Southeast Asian American Graduate Student Experiences, Lesley Nina Sisaket
Interrogating Whiteness In Graduate Education Culture: A Phenomenological Exploration Of Southeast Asian American Graduate Student Experiences, Lesley Nina Sisaket
Electronic Theses and Dissertations
The purpose of this transcendental phenomenological study is to understand the role that whiteness has in shaping the graduate education experiences of Southeast Asian American students in the United States. This study explores two research questions. 1) How do Southeast Asian American graduate students describe their graduate education? 2) How do Southeast Asian American graduate students describe concepts of whiteness, if any, throughout their graduate education? According to the experiences from six selfidentifying Southeast Asian American students, their graduate education experiences were described to be racially taxing, unchallenging, and isolating experiences. These findings stemmed from their graduate education experiences, which …
Juntos Luchamos: A Postcritical Ethnographic And Photovoice Study On Latinx Student Civic Engagement Practices At A Hispanic-Serving Institution, Liliana Diaz
Electronic Theses and Dissertations
Situated at a Hispanic-Serving Institution (HSI), this postcritical ethnographic and photovoice study sought to explore how Latinx students define and practice civic engagement. Theoretically framed by Latino Cultural Citizenship (LCC), the study explored how current Latinx student civic engagement practices inform a Hispanic-Serving Institutions’ civic engagement efforts. Data collection took place over the 2021-2022 academic year and an exhibition of the study’s findings was made publicly available at the culmination of the study. Findings from the study indicate that Latinx postsecondary students define civic engagement as knowledge and resource sharing (KRS) and achieving success. Findings for how Latinx postsecondary students …
Understanding The Role Of Home Community Environments In Shaping First-Generation Jamaican University Students’ Access And Persistence In Higher Education: Using Liming And Photovoice Methodologies, Shenhaye C. Ferguson
Understanding The Role Of Home Community Environments In Shaping First-Generation Jamaican University Students’ Access And Persistence In Higher Education: Using Liming And Photovoice Methodologies, Shenhaye C. Ferguson
Electronic Theses and Dissertations
There are 15 national outcomes as part of Jamaica’s strategic goals for Vision 2030. Among the 15, the second outcome focuses on world-class education and training, the fifth looks at security and safety, and the fifteenth addresses sustainable urban and rural development (Vision 2030, 2018). First-generation Jamaican students represent a fraction of the Vision 2030 discussion around increasing access to higher education, eliminating crime and violence, poverty, and creating safe community environments. Accordingly, in (post)colonial Jamaica, challenges faced by first-generation students are compounded (Roofe et al., 2022). While many first-generation students attend universities in Jamaica, local studies examining first-generation students …
Revision Total Hip Femoral Stem Micromotion And Statistical Shape Modeling Of The Knee, William Fugit
Revision Total Hip Femoral Stem Micromotion And Statistical Shape Modeling Of The Knee, William Fugit
Electronic Theses and Dissertations
The first purpose of this thesis was to compare the amount of micromotion seen in the femoral stem in a revision total hip arthroplasty between simple loading conditions and loading conditions derived from activities of daily living, through the use of experimental and computational methods. The amount of micromotion at the bone-implant interface was larger for activities of daily living, with ranges of 200μm more than the largest simple loading conditions. The second purpose of this thesis was to compare measurements of accuracy in a statistical shape model between individual bone and joint-level models, specifically for the knee. Using computational …
Improving Three-Dimensional Instructional Practices Via Professional Development, Alethea Henry
Improving Three-Dimensional Instructional Practices Via Professional Development, Alethea Henry
Electronic Theses and Dissertations
The purpose of this applied research study was to improve the use of three-dimensional pedagogy in science classes in chronically low-performing schools. The need to build teacher capacity became evident after the state adopted more rigorous science standards revealing deficits in teachers’ pedagogical content knowledge. This study utilized two elements, three-dimensional professional development and the science cadre, to build teacher capacity as well as foster collaboration and create buy-in throughout the district among science leaders. Data collected and analyzed from classroom observations, student surveys, and teacher interviews revealed improved usage of three-dimensional instruction and increased buy-in throughout the district to …
Unearthing The Old South/West: Histories Of Racial Capitalism In Modernist Border Narratives, Bailey Moorhead
Unearthing The Old South/West: Histories Of Racial Capitalism In Modernist Border Narratives, Bailey Moorhead
Electronic Theses and Dissertations
“Unearthing the Old South/West” examines four works of modernist historical fiction which accentuate competing regimes of racial capitalism through South/Western border settings. Following the trend in New Southern and Western Studies to break with exceptionalist and essentialist considerations of these regions, my analysis challenges white-centric narratives of the U.S. South and West and questions their popular portrayals as culturally distinct spaces. Viewing the U.S. as a site of ongoing settler colonialism, imperialist conquest, and international trade reliant upon labor exploitation, I develop the idea that South/Western borders form a microcosm for larger structures of systemic oppression throughout the nation by …
Transdiagnostic Processes Of Generalized Anxiety Disorder: An Experimental Investigation Evaluating The Role Of Emotion Regulation In Uncertain Contexts, Mary J. Schadegg
Transdiagnostic Processes Of Generalized Anxiety Disorder: An Experimental Investigation Evaluating The Role Of Emotion Regulation In Uncertain Contexts, Mary J. Schadegg
Electronic Theses and Dissertations
Generalized anxiety disorder (GAD) is a complex disorder characterized by pervasive and uncontrollable worry. Numerous researchers have established theoretical models to explain the cognitive, emotional, and contextual processes that develop and maintain GAD. From these theories, intolerance of uncertainty (IU) and emotion regulation (ER) have emerged as two transdiagnostic processes that play key roles in this disorder. Extensive research has examined each of these processes individually; however, only four studies to date have specifically examined the association between IU and ER, and none of these studies have looked at the interconnection of these processes in GAD. The current study used …
Expressions Of Femininity, Black Feminism, And Pan-Africanist Rhetoric In Black Popular Music, Alonya Lei Castillo
Expressions Of Femininity, Black Feminism, And Pan-Africanist Rhetoric In Black Popular Music, Alonya Lei Castillo
Electronic Theses and Dissertations
Black women have long been subjected to misrepresentations and stereotypes which have denied them full access to their own femininity and womanhood. These misrepresentations and stereotypes are pervasive in Euro-American culture and can be clearly observed in film, television, and music. As a result, these women have combatted such narratives as an expression of agency. One of the most notable ways Black women have accomplished these goals is through Rap and R&B, genres that have allowed them to shape and reshape notions of femininity and Black womanhood. The participation of Black women in these musical traditions frequently draw on womanist …
Influence Of Beef Carcass Weight On Carcass Chilling, Steak Case Life And Quality Traits, Trevor C. Dehaan
Influence Of Beef Carcass Weight On Carcass Chilling, Steak Case Life And Quality Traits, Trevor C. Dehaan
Electronic Theses and Dissertations
The objective of this thesis was to determine the influence of beef carcass weight on chilling and pH decline of beef carcasses, as well as color, case life and tenderness of steaks from the round, loin, rib and chuck. Twelve carcasses were allotted by hot carcass weight (HCW) into Heavyweight (HW) and Lightweight (LW) groups. Temperature decline, pH decline and thermal image temperature were measured in the round, loin, rib, and chuck for approximately 48 hours. Carcass data including 12th rib fat thickness, ribeye area, and marbling score were collected. The Semitendinosus (ST), Longissimus lumborum (LL), Longissimus thoracis (LT) and …
Phosphorus Use And Management Based On Fertilizer Placement, Rate Of Application, And Soil Biota In No-Till Situations, Brennan Alexander Bingham Lewis
Phosphorus Use And Management Based On Fertilizer Placement, Rate Of Application, And Soil Biota In No-Till Situations, Brennan Alexander Bingham Lewis
Electronic Theses and Dissertations
Phosphorus (P) pollution has become a concern among multiple scientific organizations as it leads to eutrophication, an algal bloom that depletes lacustrine and marine ecosystems of native species. Multiple strategies can be implemented to reduce phosphorus loss from agriculture fields, which is often implicated as a cause of eutrophication. Soil phosphorus chemistry results in phosphate fertilizers absorbing to clay minerals over time. Soil phosphorus is lost from agricultural fields primarily through wind and water erosion. No-till practices prevent soil erosion, which reduces the phosphorus from loading into waterways. Fertilizer placement affects phosphorus loss. Surface application of phosphorus fertilizers increases the …
Artificial Solid Electrolyte Interface With Superhalogen-Based Double Antiperovskite Li6os(Bh4)2 Materials For Dentrite-Free And Stable Lithium Metal Batteries, Gazi Mahfujul Alam
Artificial Solid Electrolyte Interface With Superhalogen-Based Double Antiperovskite Li6os(Bh4)2 Materials For Dentrite-Free And Stable Lithium Metal Batteries, Gazi Mahfujul Alam
Electronic Theses and Dissertations
Lithium (Li) metal is regarded as the most propitious anode material for next-generation battery technologies owing to its incredibly high theoritical capacity (3860 mAh g-1) and the most negative electrochemical equilibrium potential (-3.04 V vs standard hydrogen electrode). However, the practical implementation of Li anode in commercial lithium batteries is severely inhibited by the unstable solid liquid interfaces resulting from the ultrahigh reactivity, which leads to dendrite growth, low coulombic efficiency, extreme volume fluctuation, and even safety concerns. For a stable and efficient lithium anode to build next generation Li metal battery, in this thesis, we have tried to solve …
Factors Affecting The Farmers’ Adoption Decision And Usage Intensity Of Conservation Tillage In Eastern South Dakota, Sarmila Belbase
Factors Affecting The Farmers’ Adoption Decision And Usage Intensity Of Conservation Tillage In Eastern South Dakota, Sarmila Belbase
Electronic Theses and Dissertations
Many farmers are continuously looking for new ways to protect soil and increase yields and returns on investment. No-tillage and reduced-tillage farming may provide ways to achieve these goals. Such practices have been found as the alternative to overcoming the environmental challenge posed by conventional tillage practice and providing significant economic returns. However, a comprehensive study of the factors affecting the adoption and adoption intensity of these practices is lacking. This paper intends to fill this gap by utilizing a double hurdle model to analyze farmer survey data. The data used in this study were obtained from a survey of …
Targeted Browsing With Goats For Eastern Redcedar (Juniperus Virginiana L.) Control, Alanna M. Hartsfield
Targeted Browsing With Goats For Eastern Redcedar (Juniperus Virginiana L.) Control, Alanna M. Hartsfield
Electronic Theses and Dissertations
As eastern redcedar (ERC) (Juniperus virginiana L.) grassland encroachment progresses, all potential control methods should be explored in the interest of Great Plains grassland health and longevity. Targeted browsing with goats has been proven as an effective control method on some juniper species; however, little is known about its ability to control ERC. These studies intend to mend knowledge gaps of how targeted browsing with goats control ERC by causing tree death without chemicals or machinery. The first study is two 3x3 Latin squares comparing protein-supplemented diets. The second study is a randomized complete block design of five 0.224 ha …
Supports For College Students With Autism Spectrum Disorder: Views Of Postsecondary Practitioners And Faculty Regarding Autism Spectrum Disorder Student Service Provision, Susan Byrd Jenkins
Supports For College Students With Autism Spectrum Disorder: Views Of Postsecondary Practitioners And Faculty Regarding Autism Spectrum Disorder Student Service Provision, Susan Byrd Jenkins
Electronic Theses and Dissertations
Individuals with Autism Spectrum Disorder (ASD) are matriculating to higher education at growing rates and are now believed to make up roughly one to two percent of the postsecondary student population (Cox & South, 2017; Centers for Disease Control and Prevention, as cited in Gobbo & Shmulsky, 2013). Service provision for college students with ASD typically falls under the oversight of student disability services practitioners who provide guidance to faculty and staff regarding accommodations. The professionals who carry out ASD service delivery are a source of expertise, insight and understanding regarding recommended supports for students on the spectrum. This study …
The Longitudinal Influence Of Adhd Status And Stimulant Medication On Body Mass Index And Blood Pressure Among Obese Youth, Sophie Kollin
The Longitudinal Influence Of Adhd Status And Stimulant Medication On Body Mass Index And Blood Pressure Among Obese Youth, Sophie Kollin
Electronic Theses and Dissertations
Youth with attention-deficit hyperactivity disorder (ADHD) are more vulnerable to developing obesity, as they have significantly higher body mass index (BMI) and are at increased risk of food addiction and binge eating. Stimulant medication use, which is an evidence-based treatment for ADHD, is associated with lower BMI and higher blood pressure among normal weight youth. The purpose of this study was to examine the longitudinal influence of ADHD and stimulant medication use on BMI and blood pressure trajectories among a sample of 456 youth treated in a weight management clinic. Mixed linear modeling examined the main and interactive effects of …
Amphiphilic Janus Polymer Nanoparticles For Pharmaceutical And Biomedical Applications, Mahesh Loku Yaddehige
Amphiphilic Janus Polymer Nanoparticles For Pharmaceutical And Biomedical Applications, Mahesh Loku Yaddehige
Electronic Theses and Dissertations
Amphiphilic hybrid polymers have attracted significant interest as biomaterials for both fundamental research and practical clinical applications due to their unique polymer structure and properties relative to the conventional symmetric polymers. Often referred to as “Janus” polymers combine two different polymer segments (hydrophilic and hydrophobic) of varying degrees, sizes, and functionalities to obtain a single amphiphilic or hetero-functional macromolecule with characteristic features. In particular, amphiphilic “Janus” polymers and their self-assemblies have shown apparent success in nanomedicine owing to their ability to provide highly ordered nanoscale multimolecular aggregates, including micelles and vesicles. However, engineering these polymeric materials on a large scale …
The Ability Of Positive And Negative Liberty, Alexandra Jo Kotter
The Ability Of Positive And Negative Liberty, Alexandra Jo Kotter
Electronic Theses and Dissertations
The way in which we recognize, define, and promote freedom in our society can be deeply valuable. It can lead to important political answers and help identify rights and their nature. My intention is to consider the relationships among three conceptions of freedom. I believe that discussions of freedom which are relevant to political philosophy are necessarily normative. By this I mean that I am not discussing purely descriptive concepts of freedom- instead I am speaking of freedom which can be considered desirable, for this is what truly matters. Freedom to murder, for example, is freedom in the descriptive sense …
Halogen Bond Driven Supramolecular Materials, Dilan Chinthaka Karunathilaka
Halogen Bond Driven Supramolecular Materials, Dilan Chinthaka Karunathilaka
Electronic Theses and Dissertations
Halogen bonding (XBing) is a type of non-covalent interaction between covalently bound halogen atoms (XB donor), and Lewis bases (XB acceptor). In recent years, it has become a remarkable and adaptable tool to produce interesting molecular architectures and functionalities in organic-based materials. Such applications include liquid crystals, nonlinear optics, photovoltaics, and multicolor displays in the solid phase. Due to this variety of applications, XBing has become an exciting area of study in supramolecular chemistry. Herein are presented synthetic routes and characterization of self-assembling XBing molecules and their resulting materials. First, four different heterocyclic oligomers containing pyrazine, thiophene, and furan have …
Headache And Psychological Variables As Predictors Of Disability In Individuals With Primary Headache Disorders, Halle Mccracken
Headache And Psychological Variables As Predictors Of Disability In Individuals With Primary Headache Disorders, Halle Mccracken
Electronic Theses and Dissertations
Headache disorders are among the most prevalent disorders of the nervous system, affecting more than half of the global population during the lifetime. Tension-type headache and migraine are disabling conditions, and their resulting symptoms negatively impact quality of life and reduce daily functioning. These conditions are often comorbid with psychiatric disorders such as depression and anxiety disorders, and headache-related disability is often compounded by these psychiatric symptoms as well as transdiagnostic factors, such as stress, fear of pain, and anxiety sensitivity. The present study aimed to explore the relative contributions of headache symptoms and psychological factors to headache-related disability and …
Building Cultural Competence In Schools Through Teacher Capacity, Latonya R. Robinson
Building Cultural Competence In Schools Through Teacher Capacity, Latonya R. Robinson
Electronic Theses and Dissertations
The purpose of this study was to understand the dynamics of how teaching culturally responsive strategies to teachers can help eliminate the opportunity gap between students of color and their White counterparts. The action research method involved first collecting quantitative data through several surveys and then explaining the quantitative results with in- depth qualitative data through interviews and professional learning communities. In the first phase of the study, the culturally responsive and teacher efficacy scale data was collected from the participants within the study and the district at large. While the district survey was not mandated, it was strongly encouraged. …
Metaphors In Language Learning And Teaching: Discovering The Underlying Factors Affecting Demotivation In Anglophone Learners Of Modern Foreign Languages, Holly Sallah
Electronic Theses and Dissertations
In response to increased levels of demotivation in anglophone students of modern foreignlanguages, this thesis attempted to discover potential underlying causes through the use of metaphor elicitation directed at tertiary learners in the United States of America. Students were asked to metaphorize both the language learning process and the role of the language teacher. Afterwards, a qualitative metaphor analysis revealed that participants were overwhelmingly positive in respect to the role of the language teacher, but more mixed in their metaphors regarding the language learning process, with high frequency words such as “work†and “skillâ€. Contrary to the literature, the role …
Botanical Aphrodisiacs For Women's Health, Hayley N. Prescott
Botanical Aphrodisiacs For Women's Health, Hayley N. Prescott
Electronic Theses and Dissertations
Female Sexual Dysfunction (FSD) affects nearly 40% of women in the United States. While males have five FDA approved drugs for ED, there is only one FDA-approved as-needed treatment for premenopausal women with acquired, generalized Hypoactive Sexual Desire Disorder (HSDD), the most prevalent FSD. The lack of approved drugs is largely due to the biopsychosocial complexity of HSDD; however, there are neurobiological underpinnings evident. Due to the lack of safe efficacious treatment options, we hypothesize that botanical species traditionally used as aphrodisiacs may be promising leads, and exert their effects via activation of melanocortin’s, an excitatory circuit implicated in sexual …
This Is Home: Stories Of H-2a Placemaking In The U.S. And Mexico, Lillian Slaughter
This Is Home: Stories Of H-2a Placemaking In The U.S. And Mexico, Lillian Slaughter
Electronic Theses and Dissertations
This thesis contextualizes the lived experiences of two agricultural guest workers who I work with in Kentucky. Beginning in 1917, the history of agricultural guest worker programs in the United States is detailed up until today with the H-2A visa program. The first chapter pro-vides this history and pays close attention to the impact of the liberalization of Mexico’s econo-my and integration into the larger agricultural market between the US and Canada. In chapter two, census data of Kentucky and the county that the farm is located, provides a background on the Latino population. This chapter focuses on the growth …