Digital Commons Network^™

Acceptability, Anticipated Adherence, And Willingness To Begin Interoceptive Exposure: Examination Of The Influence Of A Values Rationale, Gina Quebedeaux Boullion

Electronic Theses and Dissertations

Interoceptive exposure (IE) is a treatment entailing induction of feared physiological sensations that has emerged as the most efficacious component of cognitive behavioral treatments for panic disorder. However, small-to-moderate effect sizes, wide variability in response rates, and dropout rates indicate that panic disorder treatments may benefit from modifications to improve upon retention, response rates, and symptom reduction. Patient motivation and lack of engagement have been identified as factors to intervene upon. One specific direction that has gained increasing empirical interest is the inclusion of values identification; however, research has not yet examined the influence of values on motivation to engage …

Visual Tracking Speed And Soccer Performance Metrics, Julia Paige Phillips

Electronic Theses and Dissertations

Visual training has previously been shown to correlate to sport specific level of training and sport specific performance measures in controlled conditions. However, it remains unclear if these relationships exist between visual tracking thresholds and in competition decision making metrics over the duration of a soccer season. Therefore, the purpose of this study was to investigate the relationship between visual tracking speed (VTS) baseline scores and soccer-specific performance measures. In total, 19 NCAA Division I soccer players were tested before the 2021 spring soccer season, after exclusionary criteria only 13 were utilized for analysis. VTS was measured from 1-core session …

Electromagnetic Survey Design Using Artifical Neural Networks, Shariful Islam Sharif

Electronic Theses and Dissertations

Acquiring geophysical information requires selection of the geophysical method based upon the defining physical property and a survey design with adequate resolution but cost effective based upon the size of the area to be surveyed. The objective of this study is to use artificial neural nets (ANNs) to design an optimal survey. The developed approach is tested for the case of soil pipe surveying using electromagnetics. Soil pipes are tortuous voids located within 1.5 m depth of the ground surface. They trend perpendicular to the slope and have cross-sectional dimensions on the order of millimeters to tens of centimeters. The …

Midwifery And Medicine In Britain: A Comparative View Of Midwifery And Childbearing In Scotland And England, 1650-1780, Summer Smith

Electronic Theses and Dissertations

In this dissertation I contend the female midwives and childbearing women did not passively accept the alteration of the experience of birth and the ideology surrounding it in eighteenth-century Britain. While the imposition of the man-midwife and the reframing of birth as a disease to be cured in some ways forced childbearing to shift to a medicalized event, many practices persisted from the seventeenth through the nineteenth centuries, illustrating a vein of consistency in a seemingly tumultuous period. Furthermore, the changes that did take root were not solely the purview of the male medical community, but were influenced by women …

Can Nostalgia Defend Against Stereotype Threat?, Justin Leroy Thibault-Anderson

Electronic Theses and Dissertations

Stereotype threat causes individuals to perform worse on tasks when they are made aware of a task-relevant negative stereotype for a group to which they belong. Prior research has demonstrated that this effect has been alleviated by using a number of methods including changing test context or bolstering the stereotyped group. One method of bolstering the threatened group is through a self-affirmation of preferred character traits. Nostalgia is a sentimental longing for the past, which has been shown to provide many benefits to an individual, both personally and socially. Research has shown that when told to recall a nostalgic memory, …

Sustained Delivery Of Moxifloxacin For Ocular Applications., Ruchi Amit Thakkar

Electronic Theses and Dissertations

Moxifloxacin is available as a marketed solution (Vigamox(R) which has to be administered 3 or more times a day leading to poor patient compliance and low ocular bioavailability. The overall goal of this research was to use formulation strategies and develop patient compliant dosage forms of moxifloxacin which are sustained-release so as to improve its retention and thereby ocular bioavailability. The first strategy that was explored was to develop sustained release inserts of moxifloxacin hydrochloride using hot-melt extrusion. The inserts showed sustained release and antibacterial activity up to 24h and could potentially be a once-a-day application and improve patient compliance …

Experimental Investigation Of Granular Dam-Break Flows And Their Rheological Properties, Luc Remi Rébillout

Electronic Theses and Dissertations

Large scale events such as landslides, debris-flows, and industrial accidents like tailings dams failures are hard to predict, highly dangerous, and destructive. This research work aims to study similar granular flows with controlled laboratory experiments and numerical simulations. Monodisperse and well-graded granular materials were instantaneously released in a rectangular channel with varying degrees of initial saturation. Non-intrusive laboratory measurement techniques were developed to collect data from experiments at a high spatial and temporal resolution, including flow interfaces and velocity fields. The measured data were used to estimate constitutive model parameters. Experimental results show that the selection of the constitutive relationship …

Seismic Performance Of Mechanically Spliced Precast Bridge Columns With New Couplers, Evan Greeneway

Electronic Theses and Dissertations

Lap splicing is not always the most economical or practical approach to achieve reinforcement bar continuity. Mechanical bar splices, or bar couplers, are one alternative that may be far more practical. Currently, the US codes do not allow for the use of bar couplers in the plastic hinge region for RC members in areas of high seismic activity. There has not been enough research into the couplers behavior when subjected to significant inelastic lateral deformations. The Lohr Structures Laboratory was used to conduct an experimental study on campus of South Dakota State University to evaluate the seismic performance of mechanically …

The Empirical Journey On The Roads Less Traveled To Explore The Concept Of Medication Competence And Address Nursing Students’ Pharmacology Self-Efficacy, Melynda Thelen

Electronic Theses and Dissertations

Medication competence is a priority within the academic setting, as it allows nurses to provide sound knowledge-based care and ensure safe medication delivery. Nevertheless, there is a dearth of theoretical or conceptual basis and definition of medication competence to guide assessment, analysis, and development of informed empirical evidence. Literature has also suggested current curricula do not support the complex and in-depth nature of nursing pharmacology. This dissertation paper presents three seminal manuscripts which provides the researcher’s pathway in discovering and analyzing an innovative nursing pharmacology educational strategy. The first manuscript focused on a concept analysis on medication competence, which provided …

Population Genetic Structure Of Bobcats (Lynx Rufus) In South Dakota: Using Harvested Samples To Inform Management, Stuart C. Fetherston

Electronic Theses and Dissertations

A primary objective of state wildlife management agencies is to establish sustainable harvest levels for game species. An important component of sustainable management practices is the identification of appropriate management units for monitoring and establishing defensible harvest levels. Across their range, bobcats (Lynx rufus) are an ecologically and economically important species. Despite their importance, little is known about the genetic structure of bobcat populations in South Dakota. We used tissue sampled from n = 1,215 bobcats harvested across the state from 2014–2019 to infer population genetic structure. We used 17 microsatellite loci and a sex identification marker to assign individuals …

Advanced Analytical Techniques For The Analysis Of Therapeutics Of Toxic Inhalation Agents And Pharmacokinetic Investigation, Subrata Bhadra

Electronic Theses and Dissertations

Toxic inhalation agents (TIAs), (i.e., cyanide (CN) and reduced sulfur compounds (RSCs)), including hydrogen sulfide (H2S) and methanethiol (MT)) are extremely poisonous upon exposure. Many TIAs act by inhibiting mitochondrial cytochrome c oxidase, resulting in cellular hypoxia, cytotoxic anoxia, apnea, respiratory failure, cardiovascular collapse, seizure and potentially death. CN is generated in structural fires and cigarette smoke as well as in mining, electroplating and polymer processing, whereas H2S and MT are found in petroleum, oil and natural gas, waste treatment facilities and decaying organic matter. All are common occupational gas exposure hazards in chemical industries and for first responders, including …

An Lre Placement Loophole: A Critical Policy Analysis Of Lre Placement In Defining Disproportionality Of Culturally And Linguistically Diverse Students In Special Education, Arti Sachdeva

Electronic Theses and Dissertations

The policies adopted by the Exceptional Children’s Education Act (2016) enabled disproportionality within LEAs by overlooking undocumented classroom removal practices, underestimating the monitoring and reporting criteria, and overlooking non-dominant cultural and linguistic groups within the Colorado community. In this critical policy analysis, I used quantitative methods to analyze and explore the difference between the odds ratio calculation of culturally and linguistically diverse students (CLDS) in special education with a least restrictive environment (LRE) of 40% and greater compared to Colorado’s acceptance of the federal mandate of the minimum requirement of the student LRE of less than 40% and alternate school …

Recreational Female Crossfit Athletes And Low Energy Availability, Alison Kuch

Electronic Theses and Dissertations

CrossFit is a demanding sport in which athletes perform constantly varied, functional movements at a high intensity, therefore requiring an adequate energy availability to avoid negative health and performance consequences. The purpose of this study was to assess risk of low energy availability (low EA) (phase 1) among recreational, female CrossFit athletes and measure and calculate energy availability using a 7-day dietary to measure energy intake (EI) and exercise energy expenditure (ExEE) (phase 2). In phase 1, using the LEAF-Q (Low Energy Availability in Females Questionnaire), 49% of survey respondents (n=149) were found to be at risk of low EA. …

Evaluating And Predicting The Risk Of Algal Blooms In A Freshwater Lake Through A 4-Dimensional Approach: A Case Study On Lake Mitchell, Sumit Kumar Ghosh

Electronic Theses and Dissertations

Excessive algal growth in freshwater lakes can negatively impact ecosystems, recreation, and human health. Though algae are a natural part of freshwater ecosystems, elevated nutrient loading from anthropogenic and natural sources can lead to algal blooms. Both algae and blue-green algae (BGA) are responsible for algal blooms; however, BGA (cyanobacteria) is more dangerous. The first objective of this research was to prepare a conceptual model to understand how various environmental variables affect algae. This conceptual model was used to choose the environmental variables that help increase or decrease algae in the water environment. The second objective was to develop empirical …

Culturally Responsive School Leadership Agility: A Journey Through Critical Self-Reflection, Deborah Mckelvey Brown

Electronic Theses and Dissertations

This study examined how school leaders can differentiate their approach using a self-reporting psychometric instrument called the Emergenetics® Profile when engaged in critical self-reflection. Using a multiple case study approach, three urban school leaders engaged in the deconstructing and reconstructing of knowledge frameworks specific to deficit thinking. The Emergenetics Profile served as a lens to critically self-reflect in order to differentiate their approach to the disrupt deficit thinking practices in their schools (Browning 2007; Khalifa, 2018; Shields, 2018). This study integrated these insights from critical self-reflection and the awareness gained by school leaders through their Emergenetics preferences to change their …

Exploring The Impact Of Leadership Values And Practices To Support Equity And Social Justice In An Urban School, Susan-Marie Farmen

Electronic Theses and Dissertations

This qualitative case study explores the leadership values and practices of a principal in a sixth through twelfth-grade school in the Rocky Mountain West to determine how leadership values and practices support the implementation of equitable and socially just practices in the school. Five key themes emerged: (a) equity as a Black/non-Black construct; (b) a lack of knowledge and awareness of the historical contexts of marginalized populations; (c) moral courage for all members of the school; (d) equity as an initiative or program; (e) resistance to deep equity work. From these themes, I devise three recommendations to support substantial and …

Zn Orbifolds Of Vertex Operator Algebras, Daniel Graybill

Electronic Theses and Dissertations

Given a vertex algebra V and a group of automorphisms of V, the invariant subalgebra V^G is called an orbifold of V. This construction appeared first in physics and was also fundamental to the construction of the Moonshine module in the work of Borcherds. It is expected that nice properties of V such as C2-cofiniteness and rationality will be inherited by V^G if G is a finite group. It is also expected that under reasonable hypotheses, if V is strongly finitely generated and G is reductive, V^G will also be strongly finitely generated. This is an analogue …

Changes In Pregnancy - Associated Glycoproteins Associated With Fetal Age, Postpartum Interval And Evaluation Of A Chute-Side Lateral Flow Assay, Adalaide C. Kline

Electronic Theses and Dissertations

Transrectal ultrasonography is known as the gold standard for pregnancy detection but requires costly equipment and technical skill. Access to a cheaper and more user-friendly method with similar accuracy to transrectal ultrasonography would be beneficial to individual cattle producers and to the cattle industry as a whole. Pregnancy diagnosis by detection of pregnancy-associated glycoproteins (PAGs) has the ability to accurately determine pregnancy in ruminants, however, usually requires specialized equipment for the assay. Pregnancy-associated glycoprotein pregnancy tests are gaining in popularity due to their ease of use and the unique feature of not requiring specialized training. Recently, a new lateral flow …

Use Of Research Tradition And Design In Program Evaluation: An Explanatory Mixed Methods Study Of Practitioners’ Methodological Choices, Margaret Schultz Patel

Electronic Theses and Dissertations

The goal of this explanatory sequential mixed method study was to assess whether there were observable trends, associations, or group differences in evaluation methodology by settings and content area in published evaluations from the past ten years (quantitative), to illuminate how evaluation practitioners selected these methodologies (qualitative), and assess how emergent findings from each phase fit together or helped contextualize each other. In this study, methodology was operationalized as research tradition and method was operationalized as research design. For phase one (quantitative), a systematized ten-year review of five peer-reviewed evaluation journals was conducted and coded by journal, research tradition, research …

Development Of Triangular And Tetrahedral Finite Elements For Solutions To Thermoelastic Instabilities Using Hotspotter, Cortney Samuel Leneave

Electronic Theses and Dissertations

The objective of the work presented in this thesis is to develop first-order triangular and tetrahedral elements for solutions to Thermoelastic Instabilities (TEI) regarding sliding friction systems in Hotspotter.

Hotspotter software uses a finite element method and an eigenvalue method and is an important tool because currently no other commercial software exists which solves the TEI problem for critical velocities and wave numbers of a system. Hotspotter currently uses quadrilateral and hexahedral elements for two and three dimensional analysis, respectively. Typically, tri and tet elements are used in industry when doing static and dynamic stress analysis. Therefore, the Hotspotter user …

An Accuracy And Precision Analysis Of The Velys™ Robotic Assisted Solution For Total Knee Arthroplasty, Gary Doan

Electronic Theses and Dissertations

Total knee arthroplasty (TKA) is a procedure where the arthritic surfaces of the knee is removed and replaced with a combination of metal and polymer implants that recreates the joint line to restore function and quality of life. Implant alignment is important in the success of a TKA. Modern day conventional instrumentation can be cumbersome in the operating room and can be inaccurate when resecting bone and aligning implants. Patients with large errors in resections and implant orientation are more prone to experience mechanical failures with their TKA. Mechanical failures in primary TKA require revision surgeries which can lead to …

Broadening The Capability Of Kinetics Analysis In Biomechanics, Nicholas Nelson

Electronic Theses and Dissertations

Two studies are discussed in this manuscript each preceded by a literature review of the topic. The first review and study explore agility movements and the effect that alternative upper designs in shoes might have on ground reaction force measures of performance. The second review and study evaluate methods of predicting ground reaction forces without the use of a force platform. A method of using effective forces and ways of improving its accuracy are evaluated in depth.

Tibial Strains And Tray-Bone Micromotions After Total Knee Arthroplasty: Computational Studies Evaluating The Tibial Fixation, Huizhou Yang

Electronic Theses and Dissertations

Cemented and cementless fixation in total knee arthroplasty (TKA) have been successfully used for decades. As the number of younger and more active patients treated with TKA continues to increase, long-term implant survivorship is of increasing importance. One of the most common complications and hence the reason for revision is mechanical loosening (23.1% of all revised TKA). The loosening mechanisms have been proposed for different fixation types. For cemented fixation, bone remodeling after surgery is regulated by the changes in strain energy density (SED). The recruitment of osteoclasts and osteoblasts is controlled by SED-related signals. Insufficient stimuli can promote bone …

Image Analysis Of Colloidal Systems For Pair And Triplet Correlations., Brianna Price

Electronic Theses and Dissertations

Interactions among colloidal particles drive stability of suspensions or the assembly of particles into larger superstructures such as agglomerates or crystals. Typically, colloidal interactions are modeled using pairwise interaction potential energies which consider the interactions between pairs of particles. However, additional particles can modulate pair potentials, leading models to predict incorrect behavior. To analyze the effects of three-body interactions on the structuring of colloidal systems, pair and triplet correlation functions are calculated from published experimental data. These correlation functions are then translated into empirical pair and triplet potentials of mean force, which are then used to model systems more accurately …

College Recruitment Of Low-Income Underrepresented Minority Students, Cassady M. Ogedegbe

Electronic Theses and Dissertations

The relationship between the use of discriminatory recruitment procedures against low-income unrepresented minority (URM) students at four-year private institutions based on enrollment managers’ and college recruiters’ beliefs, self-efficacy, and behavioral intentions was this study’s focus. Specifically, the following were investigated: (a) how enrollment managers perceive their role in recruiting low-income URM students, (b) how college recruiters understand their role in recruiting low-income URM students, (c) the effective strategies enrollment managers use to prepare recruiters for recruiting low-income URM students, and (d) the differential impact in recruiting low-income URM students versus their counterparts. A supporting factor explored further in this study …

Evaluating Foundational Components Of Research Consultations In An Academic Library Research Center, Ryan F. Buller

Electronic Theses and Dissertations

As our society continues to evolve at an ever-increasing rate, our higher education institutions, and the services they provide, must keep pace with societal changes in order to ensure that those services stay current and relevant. This program evaluation examines one such service, the research consultation model in University Libraries at the University of Denver. This evaluation was situated within the Human Ecological Theory Framework, to help understand how different environments can impact the recognition and value placed upon the foundational components of the service. An exploratory sequential mixed methods approach was used to determine what the foundational components of …

Mechanical Strength Assessment Of Pharmaceutical Compacts With Refractive Index Measurements From Terahertz Time Of Flight Spectroscopy, Shikhar Mohan

Electronic Theses and Dissertations

The mechanical strength of pharmaceutical compacts is often considered as a critical quality attribute for roller and tablet compaction processes. Most traditional mechanical strength tests are destructive, thus, preventing further material testing. This thesis expands on the application of terahertz time of flight spectroscopy (THz-TOF) as a nondestructive technique for assessing mechanical strength. This technique is able to extract the refractive index; which is a function of porosity and crystallinity of the solid. Thus, it was hypothesized that refractive index measurements from terahertz time of flight spectroscopy are directly related to porosity; therefore, these nondestructive measurements are able to correlate …

Accurate Quantitation Of Hexavalent Chromium For Reference Standard Certification And Quality Control Testing Using Speciated Isotope Dilution Mass Spectrometry, James E. Henderson

Electronic Theses and Dissertations

The ability to perform accurate, repeatable, and defensible elemental and molecular speciated analysis is immensely significant for measurements that support human health, environmental science, and industry. This is especially true since trivalent chromium [Cr(III)] is necessary for proper nutrition, while hexavalent chromium [Cr(VI)] is extremely toxic, genotoxic, and carcinogenic. The main challenges associated with speciated analysis are related to reactive species that are continuously transformed or converted to other species during sample processing. Accurate determination of Cr(III) and Cr(VI) species require a method that is capable of monitoring and correcting for interconversion, bias, and instrumental error. Traditional quantitative methods, such …

Impact Of A Nicu Bedside Reading Initiative On Self-Reported Maternal Stress And Mother-Infant Attachment, Lauren Lorenzi Quigley

Electronic Theses and Dissertations

Premature birth and a corresponding hospitalization in the Neonatal Intensive Care Unit (NICU) presents infants and their families with an array of medical and psychosocial stressors that have the potential to impact neurodevelopment and social-emotional functioning in both the long-and short-term. Research has demonstrated the importance of family-integrated, developmental care interventions and a need for supportive environmental and sensory stimulation for the infant to optimize developmental, social, and emotional outcomes. Engaging parents in bedside care that fosters sensory development, supports cognitive and language skills, and lays a strong foundation for bonding and attachment can be monumental for the dyad. Implementation …

The Ethical Challenge For Hipaa’S Privacy Rule In The Genomics Era Of Data Analytics., Reem Shinawi

Electronic Theses and Dissertations

The thesis of this dissertation focuses on the Ethical Challenge for HIPAA’s Privacy Rule in the Genomics Era of Data Analytics. Data Analytics in Genomic Medicine challenges the individuals’ right to privacy. Hence, a balance is needed between the previous centrality of individual privacy and the need for population information to make breakthroughs in Genomic Medicine using Data Analytics. Such a problem demands regulatory solutions. And such solutions require the collaboration of professionals. Genomic Medicine is a field that deals with sensitive genetic information in both medicine, and research, it is essential to view it through HIPAA as it is …