Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Electronic Theses and Dissertations

Discipline
Institution
Keyword
Publication Year
File Type

Articles 3601 - 3630 of 35942

Full-Text Articles in Entire DC Network

Female Ex-Offenders Transitioning Into Society, Stacey L. Forte Feb 2023

Female Ex-Offenders Transitioning Into Society, Stacey L. Forte

Electronic Theses and Dissertations

The purpose of this qualitative study was to examine female ex-offenders’ perceptions of their lived experience(s) while transitioning into society after incarceration. This study examined risk factors that female ex-offenders faced while transitioning into society asking the question, “What are the lived experiences of female ex-offenders who utilized transitional housing for reentry with regard to their perception of the benefits of certain services/offerings and staff support?” Nine participants were part of the study ranging from 25–64 years of age, with the majority being between the ages of 25 and 55 years old, residing originally in five different states. Sixty percent …


Leadership Style In A Faith-Based Athletic Department Setting, Adam P. Ybarra Feb 2023

Leadership Style In A Faith-Based Athletic Department Setting, Adam P. Ybarra

Electronic Theses and Dissertations

In this intrinsic case study, the researcher sought to explore athletic directors’ leadership styles with their coaches’ and administrators’ workplace satisfaction at a Christian-affiliated college in the Southwestern United States. The study explored which leadership style is likely to encourage motivation (i.e., achievement, recognition, growth) and hygiene factors (i.e., policies, supervision, work conditions), which could potentially increase or decrease job satisfaction. The data collection method was semistructured interviews conducted with athletic department personnel. The researcher transcribed and quality-checked the interviews against the audio recordings. The transcripts were member-checked by sharing them with each of the study participants. The researcher analyzed …


Mindfulness Based Stress Reduction Techniques In Chronic Illness, Anna Celia Gil Feb 2023

Mindfulness Based Stress Reduction Techniques In Chronic Illness, Anna Celia Gil

Electronic Theses and Dissertations

Abstract

Chronic stress and its effect on both physical and mental health have been a topic of increasing interest in the past several decades. There is mounting evidence that recurrent, persistent stress of both a physiologic and psychological nature leads to a dysfunction in the hypothalamic pituitary axis (HPA), the system which helps the body recover and adapt to short term stress. In long term stress, this HPA dysfunction leads to impairment of the immune and neuroendocrine systems resulting in chronic low-grade inflammation. This type of chronic inflammation acts as a precursor to several chronic illnesses such as diabetes, hypertension, …


Numerical Study Of Owls’ Leading-Edge Serrations, Asif Shahriar Nafi Jan 2023

Numerical Study Of Owls’ Leading-Edge Serrations, Asif Shahriar Nafi

Electronic Theses and Dissertations

The silent flight ability of owls is often attributed to their unique wing morphology and its interaction with their wingbeat kinematics. Among these distinctive morphological features, leading-edge serrations stand out – these are rigid, miniature, hook-like patterns located at the leading edge of the primary feathers of their wings. It had been hypothesized that these leading-edge serrations serve as a passive flow control mechanism, influencing the aerodynamic performance and potentially affecting the boundary layer development over the wing, subsequently influencing wake flow dynamics. Despite being the subject of research spanning multiple decades, a consensus regarding the aerodynamic mechanisms underpinning owls’ …


A Comparison Of Microsatellites And Single Nucleotide Polymorphisms For The Assessment Of Population Structure In The Amblyomma Maculatum Koch, 1844 Species Complex, Henrey A. Deese Jan 2023

A Comparison Of Microsatellites And Single Nucleotide Polymorphisms For The Assessment Of Population Structure In The Amblyomma Maculatum Koch, 1844 Species Complex, Henrey A. Deese

Electronic Theses and Dissertations

The Gulf Coast tick, Amblyomma maculatum Koch, 1844 is widespread throughout North and Central America and is the primary vector for the emerging pathogen Rickettsia parkeri. In the U.S., the population in the Southwest (A. maculatum morphotype III) is morphologically different from the population east of the Rocky Mountains (A. maculatum morphotype II). This research tests the hypothesis that A. maculatum morphotype II and morphotype III represent distinct species through the analysis and comparison of 6 microsatellite loci and suite of 135,221 Single nucleotide polymorphisms (SNPs) generated from ddRADseq. Population genetic analysis of both microsatellites and SNPs …


Destruction And Resiliency: Decolonizing Settler Knowledge In Native American Literature Through The Peoplehood Matrix, Renissa R. Gannie Jan 2023

Destruction And Resiliency: Decolonizing Settler Knowledge In Native American Literature Through The Peoplehood Matrix, Renissa R. Gannie

Electronic Theses and Dissertations

This thesis explores the complex dynamics of settler colonialism and the construction of peoplehood within the Laguna Pueblo, Lakota, Jemez Pueblo, Anishinaabe, and Blackfeet culture through a comparative analysis of literary works focusing on Leslie Marmon Silko’s Ceremony, Frances Washburn’ Elsie’s Business, N. Scott Momaday’s House Made of Dawn, Gerald Vizenor’s The Heirs of Columbus, and Stephen Graham Jones’s Ledfeather; these authors employ narrative strategies to depict the destructive impacts of settler colonialism on indigenous identities and communities. Drawing upon postcolonial and indigenous literary theories, this research uses a comparative framework to analyze the diverse …


Ceo, Cfo, And Audit Partner Gender, And Accounting Conservatism, Ceara Hintz Jan 2023

Ceo, Cfo, And Audit Partner Gender, And Accounting Conservatism, Ceara Hintz

Electronic Theses and Dissertations

I examine the association between CEO, CFO, and audit partner gender and accounting conservatism using a unique sample that encompasses hand-collected data. While accounting conservatism reflects less risky accounting choices, risk aversion theory indicates that females are more risk averse than males. I apply risk aversion theory to accounting conservatism and investigate two research questions: (i) Does the CEO or CFO and audit partner gender influence accounting conservatism? (ii) Does a female audit partner influence the relationship between a male CEO or CFO and accounting conservatism? Using skewness as a proxy of accounting conservatism, I test three hypotheses. The results …


Neural And Behavioral Evolution In An Eavesdropper With A Rapidly Evolving Host, Aaron W. Wikle Jan 2023

Neural And Behavioral Evolution In An Eavesdropper With A Rapidly Evolving Host, Aaron W. Wikle

Electronic Theses and Dissertations

The diversification of animal communication systems is driven by many interacting factors. Unintended receivers play an important part in this process, yet little is known about their role in signal evolution. Flies of the genus Ormia are parasitoids of crickets and rely on acoustic cues to locate hosts. In Hawaii, selection imposed by Ormia ochracea has led to recent and rapid diversification in the songs of their host. Here, we compare neural and behavioral responses of Hawaiian flies to those of an ancestral population to understand the role of parasitoid sensory and behavioral variation in the evolution of host songs. …


Free Trade Is Not Free: A Case For Fair Trade, Wardah Javaid Cheema Jan 2023

Free Trade Is Not Free: A Case For Fair Trade, Wardah Javaid Cheema

Electronic Theses and Dissertations

To this day, mainstream economists favor free trade policies as the best way to generate economic development. They do so at the expense of their unjustified romanticization of reductionist classical trade theories. This thesis seeks to comprehend the constraints of traditional trade theories and their inability to be applied to practical contemporary problems. Further, contrary to the fundamental assumption of free trade theory, there is ample evidence of government intervention in free trade agreements. These interventions solely encourage and protect large corporations and investors rather than the actual development and sustainability factors, namely labor and the environment. It all adds …


Examination Of Formal Instructional Design Processes At Traditional Institutions Of Higher Education In The United States Post-Pandemic Onset, Heather L. D. Tobin Jan 2023

Examination Of Formal Instructional Design Processes At Traditional Institutions Of Higher Education In The United States Post-Pandemic Onset, Heather L. D. Tobin

Electronic Theses and Dissertations

The purpose of this study is to identify the motivational elements of formal online instructional design processes that are being implemented at traditional institutions of higher education (IHEs) in the United States (U.S.). For this study, I conducted a comprehensive literature review identifying emerging issues of practice for instructional design partnerships between the onset of the COVID-19 pandemic during the spring of 2022 and the spring of 2023. This study was developed through the lens of Keller’s (2010) attention, relevance, confidence, satisfaction, and volition (ARCS-V) model of motivation. An understanding of the elements of current processes that present as benefits …


Surviving The Serenade: How Conflicting Natural And Sexual Selection Drove Rapid Diversification Of Mating Signals In An Insect, James H. Gallagher Jan 2023

Surviving The Serenade: How Conflicting Natural And Sexual Selection Drove Rapid Diversification Of Mating Signals In An Insect, James H. Gallagher

Electronic Theses and Dissertations

Understanding how the early stages of sexual signal diversification proceed is of critical importance because the nature of these microevolutionary dynamics can directly shape species trajectories and macroevolutionary patterns. Unfortunately, studying signal diversification is challenging because signals involve complex interactions between behavioral, morphological, and physiological components, many of which can only be measured in real time. Here we had the opportunity to directly study this process with the recent increase in sexual signal variation in Hawaiian populations of the Pacific field cricket (Teleogryllus oceanicus). In Hawaii, male song attracts both female crickets and a deadly acoustically orienting parasitoid …


Til Valhall: The Formation Of Nordic Neopagan Identity, Religiosity, And Community At A Norwegian Heavy Metal Festival, Padraic M. Fitzgerald Jan 2023

Til Valhall: The Formation Of Nordic Neopagan Identity, Religiosity, And Community At A Norwegian Heavy Metal Festival, Padraic M. Fitzgerald

Electronic Theses and Dissertations

A major draw of Nordic Neopaganism is the great degree of personal freedom practitioners have in the construction and performance of their spiritual identity. Nordic Neopaganism has no central hierarchy or unifying dogmatic system to dictate such endeavors. Instead, practitioners draw from the tradition’s body of “lore” -- the historical accounts, archaeological records, pre-Christian myths, folklore, and folk traditions from the Nordic cultural area -- to inform their religiosity. The works of visual artists, musicians, and scholar-practitioners inspired by elements of this body of lore serve to further constitute it. This lore provides the basis and inspiration for religious identity …


Power System Dynamic Control And Performance Improvement Based On Reinforcement Learning, Wei Gao Jan 2023

Power System Dynamic Control And Performance Improvement Based On Reinforcement Learning, Wei Gao

Electronic Theses and Dissertations

This dissertation investigates the feasibility and effectiveness of using Reinforcement Learning (RL) techniques for power system dynamic control, particularly voltage and frequency control. The conventional control strategies used in power systems are complex and time-consuming due to the complicated high-order nonlinearities of the system. RL, which is a type of neural network-based technique, has shown promise in solving these complex problems by fitting any nonlinear system with the proper network structure.

The proposed RL algorithm, called Guided Surrogate Gradient-based Evolution Strategy (GSES) determines the weights of the policy (which generates the action for our control reference signal) without back-propagation process …


Queer Is Here, Hopefully To Stay: The Incorporation And Reception Of Lgbtq+ History At The History Colorado Center, Madeline Ohaus Jan 2023

Queer Is Here, Hopefully To Stay: The Incorporation And Reception Of Lgbtq+ History At The History Colorado Center, Madeline Ohaus

Electronic Theses and Dissertations

Historically, the documentation of LGBTQ+ histories, struggles, and accomplishments has been absent from museum collections and exhibitions. Scholars argue that given the authoritative nature of museums and their influence on the public, exclusions of LGBTQ+ history can mount to institutional erasure of queer identities. However, in the past decade, there has been an increase in attempts to document and curate exhibitions highlighting and encouraging the public to engage with LGBTQ+ history. While this history is imperative to preserve and display, it can be met with controversy, leading some LGBTQ+ history exhibitions to be relocated or even removed. During the summer …


Quantification Of Nuclear Dynamics During Epithelial Remodeling, Noah De Leeuw Jan 2023

Quantification Of Nuclear Dynamics During Epithelial Remodeling, Noah De Leeuw

Electronic Theses and Dissertations

The morphogenesis of developing tissues is contingent on an extensive array of rearrangements in cellular shape, position and identity at large and small scales. One commonly used process to reshape tissues is the cell intercalation-driven elongation of a tissue in a common axis, in which rows of epithelial cells undergo oriented intercalation in a directional fashion. In most models of intercalation, cells are treated as homogeneous objects directed in their shape changes by cortical forces localized along cell-cell interfaces or tricellular junctions. However, less attention has been paid to how inhomogeneities in mechanical resistance of their own internal structures affects …


A Phenomenological Study Of Science Teachers’ Lived Experience: Pedagogical Judgment During The Covid-19 Pandemic, Amy Vo Jan 2023

A Phenomenological Study Of Science Teachers’ Lived Experience: Pedagogical Judgment During The Covid-19 Pandemic, Amy Vo

Electronic Theses and Dissertations

At the beginning of the COVID-19 pandemic, in March of 2020, education in the United States changed dramatically. Science teachers began to look at the implementation of ambitious and equitable science teaching practices differently. Employing the hermeneutic phenomenological framework, the purpose of this study was to investigate the lived experience of science teachers, specifically looking at their pedagogical judgment related to ambitious and equitable science teaching. Semi-structured interviews, artifacts and surveys were used to develop a rich description of the phenomenon. Data analysis of the science teachers’ narratives, Qualtrics surveys, and lesson plans illuminated six essential themes common to all …


Mechanistic Insights Into Mftr-Dependent Regulation Of The Redox Cofactor Mycofactocin, Aigera Mendauletova Jan 2023

Mechanistic Insights Into Mftr-Dependent Regulation Of The Redox Cofactor Mycofactocin, Aigera Mendauletova

Electronic Theses and Dissertations

Organic redox cofactors are essential for life. While classic flavins and nicotinamides are widely distributed across all domains of life, nature has also evolved niche cofactors in subsets of life domains. For example, in Actinobacteria, coenzyme F420 is commonly used in place of flavin mononucleotide in enzymes associated with carbon fixation and oxidation of secondary alcohols. The importance of niche cofactors has long been recognized however, detailed understanding about their biosynthesis and physiological uses has been lagging. One class of niche cofactors is derived from ribosomally synthesized and posttranslationally modified peptides (RiPPs). To achieve their mature form, the genetically …


'They Were Known Accordingly’: The Journey Of The Land Otter Pole And Memorial Pole At The Denver Art Museum, Penske Stranger Mccormack Jan 2023

'They Were Known Accordingly’: The Journey Of The Land Otter Pole And Memorial Pole At The Denver Art Museum, Penske Stranger Mccormack

Electronic Theses and Dissertations

In 2019, two Kaigani Haida (Alaskan Haida) totem poles (Xaadas Gyáa’ang) were re-raised in the renovated Northwest Coast gallery of the Denver Art Museum. Lee Wallace and his family, descendants of Haida carver Dwight Wallace and Dwight’s son John Wallace, led a ceremony that publicly acknowledged the Wallace family’s connection to the two poles, reintroduced Haida cultural protocols into their care and viewing, and set the stage for future collaborations between the museum and family. This study explores the history of the poles and the intersecting forces that shaped their journey from Sukkwan, Alaska, to Denver, including shifting ideals of …


Artificial Emotional Intelligence In Socially Assistive Robots, Hojjat Abdollahi Jan 2023

Artificial Emotional Intelligence In Socially Assistive Robots, Hojjat Abdollahi

Electronic Theses and Dissertations

Artificial Emotional Intelligence (AEI) bridges the gap between humans and machines by demonstrating empathy and affection towards each other. This is achieved by evaluating the emotional state of human users, adapting the machine’s behavior to them, and hence giving an appropriate response to those emotions. AEI is part of a larger field of studies called Affective Computing. Affective computing is the integration of artificial intelligence, psychology, robotics, biometrics, and many more fields of study. The main component in AEI and affective computing is emotion, and how we can utilize emotion to create a more natural and productive relationship between humans …


A Study Of The Cultural And Geological Environment Of The Magic Mountain Site In Golden, Colorado, Brianna K. Dalessandro Jan 2023

A Study Of The Cultural And Geological Environment Of The Magic Mountain Site In Golden, Colorado, Brianna K. Dalessandro

Electronic Theses and Dissertations

The Magic Mountain site, located in Golden, Colorado, has been the subject of intensive academic studies since the 1950s because of its extensive artifact assemblage and long habitation periods. The aim of this thesis was to use ground-penetrating radar, magnetometry, GIS models, and lithic analysis to further study when and how the Magic Mountain site was used during prehistoric times and contextualize a variety of hypotheses about site habitation and migratory patterns of prehistoric people in Colorado.

The results of these analyses indicate the habitation and migratory pattern of the Magic Mountain site was a periodic, but consistent, proximal visitation …


Elementary Preservice Math Teachers’ Evolving Dispositions Throughout A Math Methods Course: A Mixed Methods Study, Christine E. Hood Jan 2023

Elementary Preservice Math Teachers’ Evolving Dispositions Throughout A Math Methods Course: A Mixed Methods Study, Christine E. Hood

Electronic Theses and Dissertations

This study aimed to understand graduate-level Elementary Preservice Teachers’ (EPST) mathematical dispositions before, during, and after a graduate elementary math methods course taught through a rehumanizing (Gutiérrez, 2018), ambitious and equitable math (Horn & Garner, 2022) teaching framework. In this study, EPSTs’ dispositions included four constructs: math anxiety, math teaching anxiety, math self-efficacy, and math teacher self-efficacy. To fully understand the nuance and complexity of teacher education and EPSTs’ mathematical dispositions, I looked at both the EPSTs' and the instructors' perspectives. I investigated EPSTs’ dispositions through a modified multi-methods, sequential, and phenomenological lens. For the instructors’ perspectives, I conducted a …


Seeing The Unseen: Bridging Realities Of Experience Through Dependent Origination, Shubham Sapkota Jan 2023

Seeing The Unseen: Bridging Realities Of Experience Through Dependent Origination, Shubham Sapkota

Electronic Theses and Dissertations

Overall, this project looks into the problem and history of colonialism, the impact of it on the people and knowledge coming from South Asia, and offers an alternate view to understand our world. The notion of seeing the unseen acknowledges that there are facets of our day-to-day reality that we are often unaware of when thinking about our communities and ourselves. Yet, being able to fully acknowledge and understand the seen and unseen aspects of our community is necessary if we are to work towards improving our communities for the long run. By relying on the Buddhist teaching and discourse …


School District Demographic Change Through The Lens Of High School Students: A Phenomenological Case Study, Isaac S. Solano Jan 2023

School District Demographic Change Through The Lens Of High School Students: A Phenomenological Case Study, Isaac S. Solano

Electronic Theses and Dissertations

Over the past two to three decades, inner-ring suburban school districts in certain areas around the United States have experienced significant demographic change. These shifts influence who lives in these communities, as well as who attends schools in these K–12 school districts. In a metropolitan area, in the Rocky Mountain West Region of the United States, numerous school districts are experiencing such shifts. Although past empirical research has examined shifts through the lens of school leaders and teachers, few studies have explored how students experience this change.

This qualitative hermeneutic phenomenological case study examines how high school students experience these …


Plant Community Response To Control Of A Dominant Invader At Multiple Scales, Alexander R. B. Goetz Jan 2023

Plant Community Response To Control Of A Dominant Invader At Multiple Scales, Alexander R. B. Goetz

Electronic Theses and Dissertations

Control of invasive Tamarix spp. in riparian systems has long been a priority for management in western North America, but questions remain regarding the response of the broader plant community to different treatments. Here we summarize a series of approaches at different scales to quantify the effects of Tamarix control on characteristics of this ecosystem, including provisioning of wildlife habitat. In the first chapter we analyzed findings of the last 20 years using meta-analysis and found that although treatment has been successful in reducing Tamarix and promoting native vegetation to some extent, most literature reports very small effect sizes and …


Endogenous Money And The Structure Of Interest Rates, Grishma Neupane Jan 2023

Endogenous Money And The Structure Of Interest Rates, Grishma Neupane

Electronic Theses and Dissertations

My thesis examines the empirical patterns of interest rates in the United States in the period from 1992 to 2019. Looking into the patterns of interest rates, the spread between the Federal Funds rate and long-term interest rate is widening in the post-1990s period with the remarkable acceleration of financial innovation and financial deregulation. There has been increasing concerns about the power of monetary authorities in controlling market interest rates by setting the Federal Funds rate.

My thesis builds on the theoretical as well as the empirical literature discussing the debates among the Post-Keynesians about the determination of interest rates …


Interactions In The Mind: Examining Metacognition's Role In Entrepreneurial Performance, John Sebesta Jan 2023

Interactions In The Mind: Examining Metacognition's Role In Entrepreneurial Performance, John Sebesta

Electronic Theses and Dissertations

To better understand the mental processes that shape entrepreneurial performance, this dissertation examines the moderating effect of metacognitive abilities on the relationship between cognitive style and entrepreneurial alertness on performance at the opportunity identification and planning stages of the entrepreneurial journey. Prior research identifies these factors as components of an entrepreneurial mindset. However, the present research develops and examines theoretically driven predictions regarding how the factors interact. Using a sample of seventy teams participating in a business plan competition enables performance evaluation at these early steps in the entrepreneurship process. The hypotheses were not supported, but post hoc analyses indicate …


Problems With Machine Learning, High-Dimensional Data And Forecasting Stock Returns, Erik Mekelburg Jan 2023

Problems With Machine Learning, High-Dimensional Data And Forecasting Stock Returns, Erik Mekelburg

Electronic Theses and Dissertations

Using a multi-level ensemble design, we forecast international stock market returns with a novel high-dimensional data set of aggregated cross sectional firm-level predictors. The method includes considerations of model uncertainty, parameter instability, model density and non-linearities with machine learning, shrinkage and model averaging. We provide evidence that it is important to systematically focus on all four sources of forecast failure, shed light on the sparsity/density debate in the stock return forecasting dialogue and contribute interesting findings on the efficacy dimensionality reduction with principal components analysis and partial least squares. The robustness of the approach is demonstrated through applications in four …


Developing Red Fluorescent Zn2+ Sensors And Characterizing Zn2+ Homeostasis In Mucolipidosis Type Iv Disease, Anna M. Dischler Jan 2023

Developing Red Fluorescent Zn2+ Sensors And Characterizing Zn2+ Homeostasis In Mucolipidosis Type Iv Disease, Anna M. Dischler

Electronic Theses and Dissertations

Zinc (Zn2+) is a divalent, redox-inert metal that plays a vital role in many cellular processes either by acting as a catalytic cofactor or a labile signaling molecule in the cytoplasm. Cytosolic Zn2+ levels are tightly regulated to stay within a narrow window of concentrations, but fluctuations in Zn2+ signals have been detected in a variety of cells. We developed a genetically encoded, single red fluorescent protein (RFP) based Zn2+ sensor, RZnP1, that can be used alongside green-wavelength sensors for the simultaneous detection of different signaling molecules within the same cells or among different subcellular …


The Evolutionary Causes And Consequences Of Mammalian Hybridization, Kelsie E. Hunnicutt Jan 2023

The Evolutionary Causes And Consequences Of Mammalian Hybridization, Kelsie E. Hunnicutt

Electronic Theses and Dissertations

The natural recombination of divergent genomes within hybrid offspring provides windows through which we can study evolutionary processes and the dynamics of speciation. In this work, I use a combination of comparative and population genomics on both laboratory crosses of divergent rodent lineages and a hybrid zone of cottontail rabbits in the wild to study the causes and consequences of hybridization in mammals. Hybrid sterility is a common reproductive barrier between species that tends to preferentially manifest in the heterogametic sex and frequently genetically maps to the sex chromosomes. Thus, the sex chromosomes appear to play a special role in …


Virtual Reality Influence On Moral Reasoning Through Compassion, Dennis W. Dunivan Jan 2023

Virtual Reality Influence On Moral Reasoning Through Compassion, Dennis W. Dunivan

Electronic Theses and Dissertations

This study investigates quantifiable links between virtual reality, moral reasoning, and compassion, contributing to the development of improved pedagogy for moral leadership development through experiential learning. It is the first empirical study to determine how specific virtual reality experiences potentially influence moral reasoning as measured by the DIT-2 (Rest et al., 1999), as well as the possible mediation effects of compassion on this relationship as measured by the Compassion Scale (Pommier et al., 2019). Although pedagogical implications are discussed, including the integration of virtual reality experiences into curriculum, the boundaries of this study are controlled to measure the direct influence …