OU - Dissertations

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https://hdl.handle.net/11244/10476

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Open Access
The 1880's :
(The University of Oklahoma., 1970) Johnson, Peggy Morgan,
Open Access
A 2-D model for the O'Connell effect in W Ursae Majoris systems /
(1999) Mccartney, Scott Alan.; Herczeg, Tibor J.,
The light curves of W Ursae Majoris stars often show asymmetries which are called the O'Connell Effect. Traditionally, these asymmetries were measured by calculating the magnitude difference of the peak intensity at each of the light curve maxima. These asymmetries are usually modeled with ad hoc spots, usually considered as magneto-hydrodynamic in origin. The work of Zhou and Leung offers a thermodynamically motivated solution for these light curve asymmetries, based on a dynamic model for the system. The results presented here are derived from a simple model using Zhou and Leung's theory. These models are then compared to a database of W Ursae Majoris systems that have published photometric solutions.
Open Access
The 2.3A crystal structure of the antibody Fab HPC-4 in complex with calcium and the epitope peptide.
(2007) Garteiser, Philippe.; Mather, Timothy,; Nollert, Matthias U.,
The murine monoclonal antibody HPC-4, directed against the activation region of the human anticoagulant zymogen protein C (PC), is one of the few immunoglobulins known to display calcium-dependent antigen binding. Unlike the more common class of antibodies that merely recognize a calcium-bound conformation of their antigen, HPC-4 interacts directly with calcium in the high affinity PC-HPC-4 complex.
Open Access
2.7 MICRON WATER VAPOR BAND ABSORPTION AND ITS STATIC AND DYNAMIC THERMODYNAMIC DERIVATIVES.
(1976) Mathai, Chirathalakal Varughese,
Open Access
2016 Simons Patricia Dissertaton
(2016-05-13) Simons, Patricia; Frick, William; Vaughn, Courtney; Smith, Joan; Cate, Jean; Reeder, Stacy
Abstract The purpose of this investigation is to explore through a historical case study the ways in which one principal mentored and built capacity with a school-based cohort of teachers who became school leaders themselves in a variety of capacities. Findings reveal a generative female leader who embraced strong philosophical and theoretical foundations enacted in an enriching, innovative culture. This case study illustrates the nested activity of leadership in the development of a learning organization focused on strong relationships, continuous adult learning, and practical leading capacities that contributed to leadership dispersion, strong community identity, and personal transformative experiences for teachers who chose to become leaders as well. Findings also suggest ways that principals in contemporary schools can mentor and develop teachers to become teacher leaders and learning-centered administrators.
Open Access
3 Essays in Local Public Finance through Housing and Education
(2020-12-18) Norwood, Brent; Burge, Gregory; Rogers, Cynthia; Kuruc, Kevin; Ransom, Tyler; Carlson, Deven
In the first chapter, we investigate the relationship between student test scores and discipline outcomes in Texas public schools and whether or not schools participated in the Universal Free Breakfast Program (UFB). Eating a routine breakfast leads to increased physical and mental performance, as well as test scores. Surprisingly, there has been little focus on how eating a routine breakfast affects disruptive behaviors. We compile a panel data set from two administrative sources in Texas, spanning school years 2011/2012-2016/2107. Using fixed effects models, a staggered difference in differences model, and a fuzzy regression discontinuity design, we find that schools that offer UFB experience higher test scores and have reduced conflict outcomes such as fights, substance abuse, and truancy. These results suggest that the benefit schools receive from taking part in UFB are significant, help their students achieve better outcomes in schooling, behavior, general well-being, and increase funding from lower truancy rates. In the second chapter, we investigate how the technique of hydraulic fracturing or "fracking", has made it possible to produce vast new quantities of oil and natural gas. States like Colorado, Texas, and Oklahoma have seen a dramatic increase in the number of wells for both oil and natural gas. In this study, the main source of exogenous variation to be explored is the location of oil and natural gas well sites over time, relative to home locations. We estimate the effect of hydraulically fractured natural gas and oil well sites on both urban and rural residential home prices between 2000 to 2018. The data stems from the U.S. Department of Homeland Security that lists locations of all oil and natural gas wells, and from Zillow's ZTRAX data base which contains home transaction and administrative data. ArcGis is used to create varying buffer zones sizes around well sites, exploring how average home prices changed before and after a well opens. First, a zip code level fixed effects model is used. Second, household level fixed effects models and repeat sales models are implemented. Lastly, a spatial differences in differences (SDID) approach is used. Our results show that homes within .5 mile of a well have a 2.9% increase in selling price and homes that are .5-1 mile from a well site see a 1.2% increase compared to homes that are more than 2 miles away. In the third chapter, we are interested in flat rate tuition and how it has effected student registration behaviors and academic performance. The cost to attend college has risen drastically over the past decade. This sharp increase has caused universities to reevaluate tuition pricing schemes how they charge tuition in efforts to keep enrollments and revenue's high. There is growing interest in flat rate tuition (FRT) where tuition is based on 15 credit hours per term for students enrolled in 12-19 hours. Thus, the marginal cost for over 15 credit hours is effectively zero. This new tuition pricing system has two big impacts on the student body. First, it can alter the academic performance of students. Second it can alter their registered and attempted semester course loads. Using a linear probability model and fixed effects regression models, find that under FRT, students register for more classes, attempt more credit hours, and have higher semester, yearly, and graduation GPA's compared to students that paid per credit hour. Using a rich data set from the University of Oklahoma, we compare cohorts of students facing different tuition schemes: no FRT (or per credit hour tuition), 1, 2, or 3 years of FRT, and all years of FRT, from the Fall of 2008 to Spring of 2018.
Open Access
3-D numerical simulation of horizontal well gravel pack.
(2004) Ojo, Kolawole Paul.; Osisanya, Samuel O.,
The modeling equations consist of five partial differential equations with five dependent variables, all of which were solved simultaneously. The system of partial differential equations was approximated using the central-difference finite-difference approximations method. The resulting system of non-linear algebraic equations was then solved using the Newton's method of solving nonlinear simultaneous equations. A solution algorithm was developed and implemented using a computer program. HGPSIM, a horizontal well gravel pack simulator was developed to implement the solution algorithm. The usefulness and validity of the model was also illustrated by simulating some horizontal gravel pack jobs reported in the literature and performing sensitivity study using the developed simulator.
Open Access
3DVAR and cloud analysis with WSR-88D Level-II data for the prediction of tornadic thunderstorms.
(2005) Hu, Ming.; Xue, Ming,
Doppler weather radar observations play a key role in initializing convective storms within storm-scale numerical weather prediction (NWP) models. The radial velocity and reflectivity are the two main parameters measured by Doppler weather radars. Due to their indirect nature and incomplete spatial coverage, the optimal assimilation of these data remains a challenging task.
Open Access
3rd-person non-zero sum game theory /
(1972) Head, Charles,
Open Access
4DVAR retrieval of prognostic land surface model variables.
(2004) Ren, Diandong.; Xue, Ming,
The major findings of the first type of retrieval are: Initial soil moisture contents as well as deep soil temperature can all be successfully retrieved, for realistic initial guess errors; the relative difficulty in retrieving superficial and deep soil moisture contents depends on the vegetation coverage and growth conditions; the revision to the soil temperature equations as documented in a separate paper is found critical in retrieval with real OASIS data; daytime observations are found much more effective because of their higher signal to noise ratio; assimilation window length up to ten days is found to produce the better retrievals. This signifies the value of information contents.
Open Access
7th grade Chinese students' reading motivation in Taiwan.
(2007) Huang, Suhua.; Ruan, Jiening,
This dissertation study investigated seventh-grade Chinese students' reading motivation in Taiwan. The mix-method triangulation research design was employed to find answers to the study's questions. A total of 247 seventh-grade Chinese students (122 boys and 125 girls) provided the quantitative data by completing a modified Chinese Motivation Research Questionnaire (MRQ). Eight high reading achievement students and eight low reading achievement students were purposefully selected to participate in the semi-structured interviews to provide in-depth qualitative data. Qualitative data included observations conducted during the reading classes and the afterschool programs. Both descriptive and inferential statistics were used to summarize the quantitative results. Content analyses using the constant comparative method led to the identification of important themes related to Chinese seventh-grade students' motivation to read.
Open Access
8-rings in minimal maps /
(The University of Oklahoma., 1957) Goldbeck, Benno Theodor,
Open Access
9, 10-disubstituted-9, 10 dihydronaphthalene chemistry /
(The University of Oklahoma., 1968) Irelan, John Ralph Smiley,
Open Access
A Balancing Act: Reconciling Organizational Change with a Tradition of Uniqueness in Countercultural Liberal Arts Colleges
(2008) Prewitt-Freilino, Paul David; Tan, David
The current investigation explores the impact of societal shifts in commercialism and consumerism on lesser-known colleges with a tradition of liberal arts education. I present a descriptive case study that examines the perspectives of a total of 39 faculty, students, and administrators at two countercultural liberal arts colleges in the Northeastern United States, which continue to successfully balance external demands with their commitments to liberal arts education. Findings suggest a model for change in which all stakeholders focus on their shared institutional goals to creatively address challenges in a way that supports their commitment to liberal arts education. Both case institutions improved their financial positions and achieved record levels of enrollment by involving their campuses in effective planning and self-assessment, and as a result, redefined the role of liberal arts education for the twenty-first century.
Open Access
A Building Block Apporach to Port Security
(2011) Huck, Robert Charles; Sluss, Jr., James J||Yeary, Mark B
With the ever present threat to commerce, both politically and economically, technological innovations provide a means to secure the transportation infrastructure that will allow efficient and uninterrupted freight-flow operations for trade. With over 360 ports of entry and 20 million sea, truck, and rail containers entering the United States every year, port facilities pose a large risk to security. Securing these ports and monitoring the variety of traffic that enter and leave is a major task. Currently, freight coming into United States ports is "spot checked" upon arrival and stored in a container yard while awaiting the next mode of transportation. For the most part, only fences and security patrols protect these container storage yards. To augment these measures, this research proposes the use of aerial surveillance vehicles equipped with video cameras and wireless video downlinks to provide a birds-eye view of port facilities to security control centers and security patrols on the ground. The initial investigation demonstrates the use of unmanned aerial surveillance vehicles as a viable method for providing video surveillance of container storage yards. This research provides the foundation for a follow-on project to use autonomous aerial surveillance vehicles coordinated with autonomous ground surveillance vehicles for enhanced port security applications.
Open Access
A Case Study of a Public Private Partnership in Arts Education
(2013) Morgan, Meg Myers; Hellman, Chan M
Public private partnerships (PPP) expand government services by utilizing the skills and resources of the private sector. Collaboration between the sectors allows for a greater reach of services, and the potential for cost effective and efficient methods of delivery. Using the skills and expertise of the arts community in the city of Tulsa, Oklahoma, helped the public school system create a plan to provide equitable and sustainable arts education to its students.
Open Access
A Case Study of Resilient African American Adults
(2011) Johnson, Ebony Joy; Adams, Curt
Through a qualitative, case-study, the extensive literature regarding resilience and the historical information regarding the city in which the participants resided rendered the following five factors that constitute the protective factors for the study: societal and socioeconomic factors such as supportive adults at home, at school, and in the community; rigorous and challenging educational experiences that meet the academic, social and cultural needs of the child; opportunities for continuous engagement and focus through extracurricular after-school, Saturday, and summer enrichment programs; a network of achieving peers; and a strong belief in and sense of oneself. The ways in which these protective factors relate to sources of efficacy information were identified and analyzed.
Open Access
A CATALOG OF WORKS FOR MARIMBA SOLOIST WITH PERCUSSION ENSEMBLE COMPOSED BETWEEN 1959 AND 2008 WITH ANALYSIS OF SELECTED WORKS
(2009) Bessinger, David Kenneth; Wagner, Irvin||Drege, Lance
This document provides a chronological catalog of works for marimba soloist and percussion ensemble composed between 1959 and 2008. More than 100 works have been composed over the forty-nine year history of the genre. Those that have a record of success were considered for analysis of structure and performance problems. That record of success was determined by two factors. First, the work needed three or more submissions to the Percussive Arts Society's program archive. Those works were then examined for the second factor, a performance at the Percussive Arts Society International Conference. Four compositions were chosen for analysis from the twelve that attained both factors: Minoru Miki's Marimba Spiritual, Lynn Glassock's Off Axis, Gordon Stout's Diptych No. 2 and David Gillingham's Concerto No. 1, Gate To Heaven. These compositions represented large and small ensemble categories. In addition, three of the works were written by commissioned composers, and two were written by performers as composers. The four works were examined using Ralph Turek's analytical categories: formal structure, harmonic/tonal structure, melodic/rhythmic structure and aspects of texture/dynamics and articulation. Performance problems found in the solo part and the ensemble were examined.
Open Access
A Community of Congruence Among Secondary Social Studies Teachers: A Case Study
(2012) Province, Rachael; Houser, Neil
The purpose of this case study was to explore the community of one purposely selected department of secondary social studies teachers. I aimed to provide insight into the nature of one community of congruence amid the many constraints and systemic pressures in school systems today. Many have suggested that education is a microcosm of larger society, and that we have approached both in an increasingly fragmented manner. Systems theorists suggest that one way to address this problem would be to develop a systems consciousness in order to start viewing the world and education as connected and interrelated. One way to do this might be to create a "community of congruence" in the school system. A community of congruence is defined as a group of "like-minded people, gathering in community to reinforce fragile beliefs" in order to "offer mutual support and opportunities to develop a shared vision." The data suggest that this community of congruence was evolutionary, interdependent, and politically sophisticated. The study used systems theory to better understand the community's transformation. One benefit of this research may be to offer possible insights for those interested in developing communities of reassurance and support while simultaneously furthering a shared vision for education.
Open Access
A Comprehensive Investigation on Microscale Properties and Macroscopic Behavior of Natural Expansive Soils
(2012) Lin, Botao; Cerato, Amy B
Understanding the complicated behavior of expansive soil requires in-depth exploration of microscopic phenomena under varying situations, especially when the soil stays unsaturated and experiences swell-shrink cycles. This study is dedicated to a comprehensive investigation of eleven micro-scale properties that function as revealing factors of these electro-physico-chemical mechanisms and the associated surface forces. These microscale properties include: specific surface area (Sa), cation exchange capacity (CEC), surface conductance (λddl), soil acidity (pH), mineralogy (from X-ray diffraction), structure (from scanning electron microscopy), elemental composition (from energy-dispersive X-ray spectrometry), diffuse double layer thickness (t), real relative permittivity (κ'), effective conductivity (σ) and suction (s). Four naturally collected and two laboratory stabilized expansive soils were selected as the study objects. The roles of some microscale properties in determining the macroscopic behavior of volume change and shear strength have been thoroughly examined through experimental work including three dimensional water content-volume-suction studies and a triaxial test program on unsaturated specimens along three capillary paths. The effects of chemical stabilization by fly ash have also been extensively evaluated from a microscopic point of view.