Digital Commons Network^™

The Effect Of Neonicotinoid Clothianidin On Ring-Necked Pheasant Survival And Reproduction, Michael Sundall

Electronic Theses and Dissertations

Ring-necked pheasants (Phasianus colchicus) are economically important to the state of South Dakota bringing in over one hundred million dollars in revenue each season. The population is known to fluctuate temporally for many reasons, often weather related. Unfortunately, no research has been conducted involving ring-necked pheasants that evaluated the impact or interaction of neonicotinoids on the species. The objective of our study was to gain an understanding of how the neonicotinoid, Clothianidin, affects survival and breeding in pheasants. Our first experiment was to determine if there was a selection bias for seeds treated with neonicotinoids. In this experiment, eight ring-necked …

Exchange Rate And Cost Of Credit Fluctuations In Ghana Before And After Inflation Targeting Framework, Patrick Glavee

Electronic Theses and Dissertations

Fluctuations in exchange rate and cost of credit affect most economies in the world. The problem arises with the uncertainty it generates and the challenges it poses to the economy. The volatility of the exchange rate has been studied extensively in the extant literature, but the problem continues to persist. This paper therefore investigates whether inflation targeting framework influences the exchange rate and cost of credit in Ghana using data from February 2001 to March 2019. Using vector autoregressive model and vector error correction model, the study reveals that the exchange rate situation improves in both the short and long …

Distributed Machine Learning Approach To Fast Frequency Response-Based Inertia Estimation In Low Inertia Grids, Abodh Poudyal

Electronic Theses and Dissertations

Recent updates to the IEEE 1547-2018 standard allow active participation of distributed energy resources (DERs) in power grid services with the goal of increased grid reliability and resiliency. With the rapid growth of DERs towards a low inertia converter-dominated grid, the DERs can provide fast frequency response (FFR) services that can quickly counteract the change in system frequency through inertial support. However, in low voltage grids, frequency and voltage face dynamics coupling due to a high resistance to reactance ratio and cannot be controlled separately as in the bulk electric grid. Due to the coupling effect, the control of one …

Biophysical And Socioeconomic Impacts Of Farmer Managed Natural Regeneration In Burkina Faso, Basnewende Brice Fulgence Zoungrana

Electronic Theses and Dissertations

Human actions such as overgrazing, the development of cities at the expense of forests, high intensity and poor agricultural management, and so forth, reduce the resources available for future generations. Because Earth has limited resources, it is important to judiciously use and manage natural resources. Human actions towards nature are the focus of my research in Africa. Increased demands for grazing, agriculture, and ecosystem services led some farmers in developing countries to use unsustainable practices, which may lead to low incomes and poor food nutrition for households. Farmer managed natural regeneration (FMNR) may be a solution to these issues. FMNR …

Impact Of Grid-Following And Grid-Forming Ders On Resilient Operation Of Holonic Grid, Ali M. Alsenan

Electronic Theses and Dissertations

This thesis investigates how different distributed energy resources (DERs) impact the resilience operation of a holonic grid. The holonic grid consists of two or more connected microgrids and /or provisional microgrids (PMGs). The type of the DER, i.e., grid-forming or grid-following, affects the operations of the holonic grid, particularly during the islanded mode. To study this emerging and timely topic, a resilience-oriented holonic grid optimal operation model is proposed. This model carefully formulates the operations of both grid-forming and grid-following DERs. A variable value of lost load (VoLL) is further employed in the proposed model to help quantify and monetize …

2d Confinement Of Thermal Gradients In Metallic Non-Local Spin Valves, Rachel K. Bennet

Electronic Theses and Dissertations

Non-local spin valves (NLSVs) are a valuable tool in the growing field of spintronics due to their unique ability to separate charge current from pure spin current. Their potential applications as read heads for hard-disk drives, as well as use as logic gates and other spin sensors, makes detailed understanding of their behavior under a wide range of operating conditions very important.

In this dissertation, I present results of extreme thermal engineering of the supporting substrate of NLSVs, which has a dramatic impact on the background signal of the device as well as contributions from thermal spin effects such as …

Comparing Modern Day Acquisition Costs Of Trafficked Individuals: Implications For Anti-Trafficking Measures, Chelsea Reneé Dillane

Electronic Theses and Dissertations

The acquisition process of trafficked individuals varies case by case around the world, with human traffickers using various methods of acquisition and paying a range of costs to obtain these individuals. While research on the acquisition methods of traffickers is expansive, research on acquisition costs is relatively small and is mostly covered by Kevin Bales and Siddharth Kara. This study examined acquisition costs of trafficked individuals around the world in order to identify themes and patterns of acquisition, with the goal of informing preventative anti-trafficking efforts aimed at the acquisition process of human trafficking. The main finding of this research …

Developing Machine Learning Algorithms For Behavior Recognition From Deep Brain Signals, Hosein Golshan Mojdehi

Electronic Theses and Dissertations

Parkinson’s disease (PD) is a neurodegenerative condition and movement disorder that appears with symptoms such as tremor, rigidity of muscles and slowness of movements. Deep brain stimulation (DBS) is an FDA-approved surgical therapy for essential tremor and PD. Despite the fact that DBS substantially alleviates the motor signs of PD, it can cause cognitive side effects and speech malfunction mainly due to the lack of adaptivity and optimality of the stimulation signal to the patients’ current state. A behavior-adapted closed-loop DBS system may reduce the side effects and power consumption by adjusting the stimulation parameters to patients’ need.

Behavior recognition …

Satellite Constellation Deployment And Management, Joseph Ryan Kopacz

Electronic Theses and Dissertations

This paper will review results and discuss a new method to address the deployment and management of a satellite constellation. The first two chapters will explorer the use of small satellites, and some of the advances in technology that have enabled small spacecraft to maintain modern performance requirements in incredibly small packages.

The third chapter will address the multiple-objective optimization problem for a global persistent coverage constellation of communications spacecraft in Low Earth Orbit. A genetic algorithm was implemented in MATLAB to explore the design space – 288 trillion possibilities – utilizing the Satellite Tool Kit (STK) software developers kit. …

Actin Regulation And Furrow Dynamics During Early Drosophila Embryogenesis, Yi Xie

Electronic Theses and Dissertations

Drosophila embryogenesis starts with a single nucleus undergo 13 rounds of nuclear divisions called syncytial cycles. Staring at cycle 10 when nuclei migrate to the surface of the embryo, massive and dynamic cortical actin structures and cleavage furrow formations occur. How actin regulators coordinate into an organized network directing three-dimension actin structures in the developing organisms is an unsolved question. Here, I present an in-depth characterization of actin cap dynamics: the actin caps go through expansion, stabilization, elongation and fragmentation phases in each cycle. Arp2/3 is the major contributor to actin cap formation. The functions of 7 different actin and …

Drawing Identities: An Ethnography Of Indigenous Comic Book Creators, Melissa Ann Kocelko

Electronic Theses and Dissertations

This research examines the experiences of Indigenous comic creators when making comic books, and I aim to investigate the individual and communal motivations for creating comics. Representations of Indigenous characters and storylines have primarily been told through a white lens in mainstream comics. Within the past five years, this trend has shifted with increased academic and public attention on Indigenous comic books and the rise of comic conventions like Indigenous Pop X. I argue that these comics are acts of decolonization and self-determination where creators use comics as educational tools and as a form of cultural preservation by documenting Indigenous …

Person-Centered Care Education For Caregivers Of Patients With Dementia In Long-Term Care Settings, Dawn Buckmire

Electronic Theses and Dissertations

Person-centered care (PCC) guidelines are being used as a care model to improve health outcomes for residents with impaired cognition. The researcher utilized PCC guidelines to educate caregivers in residential homes to provide care based on the residents’ individualized needs and choices to reduce worsening health conditions and potentially avoidable hospitalizations. The researcher created an educational tool to improve prompt management of health conditions for residents with cognitive impairment and set up a control group (n = 4) and an intervention group (n = 4) to conduct this project. The intervention group received the PCC education guidelines, whereas …

Reducing Gaps In Knowledge About Electroconvulsive Therapy Among Mental Health Nurses, Janice L. Edmonson

Electronic Theses and Dissertations

This DNP study was conducted to identify knowledge gaps about electroconvulsive therapy (ECT) among mental health nurses and to determine the effectiveness of an educational intervention on the knowledge and attitude of mental health nurses about the use of ECT at a psychiatric hospital. In this study, the researcher sought to build upon an existing knowledge base using principles of adult learning theory to enhance the therapeutic relationship of the nursing staff when caring for ECT patients. A sample of three-quarters (N = 119) of the mental health nursing staff employed by the psychiatric hospital consented to participate in …

A Look At Vision: Perspectives Throughout The Organizational Hierarchy Of The Christian University Context, William Kyle Brantley

Electronic Theses and Dissertations

Research supports vision as a central tenet to leadership. Just as important as the content of vision is how it is communicated. However, once a vision is cast, far less is known about how it is communicated throughout the organization and how it influences members throughout the organizational hierarchy. For faith-based organizations like Christian colleges and universities, vision is particularly important as it serves to steer the institution toward a greater realization of its faith-based identity. This study contributes to the empirical research on vision, its communication, and its effect, as both the nature and impact of vision communication within …

Improving Low Health Literacy In Poststroke Patients By Educating The Health Care Staff, Marthilde Brzycki

Electronic Theses and Dissertations

Abstract

Lack of health literacy in the poststroke patient population is a serious issue; with the addition of the homeless population to that group, the result may be devastating. According to the American Heart Association and American Stroke Association (AHA/ASA, 2016), stroke is considered the primary cause of death and one of the chief reasons for disability in the United States, and nearly75% of strokes occur in those who are 65 years of age or older. Nurse practitioners are vital, providing necessary training and stroke education to the nursing and other health care staff. This DNP project was initiated to …

Relationships Between Education Track, Adverse Childhood Experience, And Recidivism Among Juveniles, Catherine Gammage

Electronic Theses and Dissertations

A high recidivism level, despite attempts by regulatory agencies and various institutions to decrease it, is currently a disturbing problem of the juvenile justice system. Adjudicated youth released from residential treatment centers are often reincarcerated within 3 years after their release. Residential treatment centers provide mandated educational and treatment services for all incarcerated youth. The educational programs offered by residential treatment centers should include academic and career technology programs which support community reintegration. The opportunity for students to receive a high school diploma and industry certifications for career readiness is an important way to decrease recidivism for juveniles. This study …

A Phenomenological Study On The Influence Of A Leadership Living-Learning Community On First-Generation College Student Social Integration, Jeremy Todd Sheffield

Electronic Theses and Dissertations

First-generation college students are a growing and unique population in the United States. First-generation college students face far more barriers to success when compared to their continuing-generation peers. Student retention and success is a primary concern for institutions of higher education in the United States as economic challenges and pressures grow. Therefore, retention and success for the growing number of first-generation college students is a priority for higher education leaders. A vital component of student retention and success is effective social integration. A proven high-impact practice for increasing student social integration is participation in a living-learning community. A descriptive phenomenological …

The Effects And Analysis Of Implant Type And Surgical Approach In Total Hip Arthroplasty Dislocation Resistance, Brittany Marshall

Electronic Theses and Dissertations

Total hip arthroplasty (THA) is one of the most successful orthopaedic surgeries performed, in which the hip joint is reconstructed to decrease pain and to improve the functionality to the joint. Although these surgeries are very successful, there still remain areas for improvement, such as failures due to instability and dislocation of the implanted joint. The purpose of this thesis is to investigate the effect of surgical entrance approach on dislocation, the effect of implant type, and the effect of capsule repair and closure. The need to quantify the resistance to dislocation is important in understanding the effect that each …

50-State Higher Education Disability Policy Review 2008-2019: A Content Analysis, Marie Orlin

Electronic Theses and Dissertations

More students with disabilities are present on higher education campuses. This study examines enacted legislation of the 50 United States throughout an 11-year period of students with disabilities in higher education. Racialization of disability and representation in states’ legislation is examined. As the student body expands on higher education campuses, diversity comprehensively racially, ethnically and culturally grows. Four major federal laws: Americans with Disabilities Act and Amendments Act, Rehabilitation Act of 1973, and Individuals with Disabilities Education Improvement Act of 2004 form the state disability legislation backbone applicable to postsecondary students. The Individuals with Disabilities Education Improvement Act of 2004 …

Effects On Initial Fixation Of Cementless Tibial Trays In Total Knee Arthroplasty, Brooke Fritts Thompson

Electronic Theses and Dissertations

Bone mineral density (BMD), among other factors, largely effect the initial stability of the cementless tibial tray component in a total knee replacement (TKR), where increased motion at the tray-bone interface hinders bony ingrowth. With a lack of bony ingrowth, the cementless implant will not experience long-term success. Understanding which factors influence initial stability yields insight into surgical technique considerations and help inform a surgeon’s implant choice. The objective of this study was to evaluate factors influencing the initial stability of cementless tibial trays using a 6-degree of freedom (6-DOF) robotic joint simulator, the AMTI VIVO, and combined loading scenarios …

The Sounds Of Being "Un-American": Embodied Cultural Trauma Within Japanese American Musical Worlds, Kyle Przybylski

Electronic Theses and Dissertations

WWII saw the forced removal of around 120,000 Japanese Americans to concentration camps across the United States. Despite being incarcerated in often unforgiving social, political, and physical environments, many incarcerees developed means of continuing Japanese cultural traditions and music. Since that time, former incarcerees have largely avoided detailed discussion of their experiences of imprisonment, and as such, there is little information to determine what kind of impact incarceration had on their individual and collective musical worlds.

This thesis explores transgenerational cultural trauma using the incarceree experiences of the Granada Relocation Center (a National Historic Landmark) in southern Colorado. The cultural …

College, At What Cost? African American/Black Women Undergraduate Students’ Perception Of Institutional Policy Levers, Tamara D. White

Electronic Theses and Dissertations

This study is exploring how institutional policy levers impact retention for African American/Black women undergraduate students at a private four-year predominantly white institution in a mid-western state of the United States. Retention of African American/Black women undergraduate students is not a widely researched area. In this exploratory case study, eight African American/Black undergraduate junior and senior women, ten administrators and one focus group of six African American/Black women were interviewed. Artifacts were collected from the administrators. The data collected was analyzed using the culturally engaging campus environment model. The experiences of the African American/Black undergraduate women were examined in academic …

In Vivo Data Capture Using Hssr For Calibration Of Computational Models, Thor Erik Andreassen

Electronic Theses and Dissertations

Computational modeling is a vital tool for understanding and evaluating healthy and unhealthy function of the musculoskeletal aspects of the human body. However, the accuracy of the musculoskeletal models depends significantly on the accuracy of the input data used to calibrate various behavioral parameters of the model. To date, most computational models have been built using generic in vitro data, mostly because of a lack of accurate and meaningful datasets from in vivo testing. The next major step in computational modeling is to create subject-specific computational models using calibration data taken from in vivo testing. The overall goal was to …

Transcatheter Mitral Valve Replacement: Structural And Hemodynamic Analysis, Saba Ravaghi

Electronic Theses and Dissertations

Transcatheter mitral valve replacement (TMVR) is being developed to become a substitute therapy for surgery in prohibitive or high surgical risk patients to treat severe mitral regurgitation. A limited number of TMVR systems are under clinical evaluation. However, transcatheter mitral valve (TMV) long-term durability and hemodynamic performance is not known. TMV durability and hemodynamics must match with that of surgical bioprostheses for potential commercialization of TMVR. Experimental and computational approaches were used to find the leaflets’ three-dimensional anisotropic mechanical properties in a transcatheter Edwards SAPIEN 3 valve and a surgical Carpentier-Edwards PERIMOUNT Magna mitral valve and finite element (FE) simulations …

From Field To Museum: Intergenerational Education In Public Archaeology, Nicholas Daniel Dungey

Electronic Theses and Dissertations

Archaeologists have developed different curricula and methods within museums, classrooms, and field settings that engage the public in learning about the past. One realm of public archaeology that has received little research is studying how intergenerational education impacts engaging learners of varying ages with the past. Community collaboration and place-based education (PBE) have served as relevant topics of research for intergenerational educators. I incorporated intergenerational education methods at an archaeology summer camp at Highlands Micro School and at a temporary interactive exhibit at the History Colorado Center. I utilized surveys to determine changes in perception of archaeology that occurred between …

Development Of A Clinical Marker-Less Motion Capture System For Patient Monitoring, Abigail Eustace

Electronic Theses and Dissertations

The ability to understand human movement is beneficial for deciding surgical procedures, tracking disease progression over time and helping with patient rehabilitation. The current gold-standard for collecting human movement is the use of 3-dimensional marker-based systems. Several studies have presented the many limitations to the current gold-standard that reduces the number of people who are able to benefit from a gait analysis. Those limitations in the current gold-standard include the requirements of large laboratory space, costly equipment, long instrumentation and collection time, and the potential for motion artifact from markers being placed on the skin. The purpose of this study …

Ultrasonic-Based Condition Assessment Of Wooden Utility Poles, Yishi Lee

Electronic Theses and Dissertations

More than 300 million utility poles shoulder the utility grid in the United States. However, the ineffectiveness of the current inspection process causes roughly a third of utility poles removed from the service deemed suitable for reuse. Due to the utterly essential role of the power infrastructure, budget shrinkage, and the structural degradation of the modern distribution grid, this Ph.D. dissertation addresses the challenges by proposing a physics-based signal analysis method with a jointly developed ultrasonic UB1000 system c to enhance the objectivity in ultrasonic-based nondestructive evaluation (NDE). The proposed methodology has been deployed commercially in the field and featured …

Black Finesse Amidst The Political Science Paradigm: A Race-Grounded Phenomenology, Janiece Zalina Mackey

Electronic Theses and Dissertations

In this research, I develop a methodology that I call Race-Grounded Phenomenology (RGP). The scope of this study investigates how Black undergraduate students navigate the discipline of political science. An eclectic array of critical theories of race unveil the ways in which Black undergraduate students exhibit flair and tenacity, or what I call Black Finesse. The eclectic array of critical theories of race utilized in this study include critical race theory, critical whiteness studies, and identity enactments. However, this study focuses on the Black student experience amidst the socialization of political science or what I call the political science paradigm. …

A Longitudinal Examination Of Biomechanical Balance And Quantitative Multidomain Assessments During Recovery Following Sport-Related Concussion, Moira Kate Pyrhoda

Electronic Theses and Dissertations

Sport-related concussion is an inherent risk to athlete health in contact and collision sports. Both short- and long-term risks are associated with the injury. Short-term, athletes may develop post-concussion syndrome (PCS), the persistence of cognitive, physical, and emotional symptoms for weeks or months after injury. Athletes who return to play (RTP) prematurely are at increased risk for lower extremity injury and repeated concussion injuries. Long-term, history of multiple concussions have been linked to neurodegenerative diseases. Due to these risks, concussion assessments must be sensitive to the injury and useful in the diagnosis, recovery, and RTP phases of the injury.

Sideline …

Design, Synthesis, & Biological Evaluation Of Novel Het-Aromatic/Aromatic Analogs For The Treatment Of Hiv, Cancer, & Cognitive Dysfunctions, Mohit Gupta

Electronic Theses and Dissertations

Cyclophilin A are a class of peptidyl-prolyl isomerases that catalyzes isomerization of the proline residue within a protein. Cyclophilin A plays an instrumental role in the pathogenesis of HIV and HCV virus. Using structure-based drug we designed and synthesized small molecule inhibitors of cyclophilin A. These inhibitors were biologically evaluated for their ability to inhibit WT HIV-1 inhibition.

Mitogen-Activated Protein Kinase signaling cascades plays a critical role in cancer cell survival, metastasis, and chemo-resistance. The MEK5/ERK5 pathway, which is a member of MAPK signaling cascade, is involved in cell survival, anti-apoptotic signaling, angiogenesis, and cell motility. It is found to …