Published ETD Collection
Recent Submissions
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Cluster Validation of WHAN Galaxy Classification Using a Novel Approach To External Cluster Validation
(2016-05-12)The classification of galaxies is traditionally carried out using human-eye analysis of morphology or through information provided by a large survey of galaxies. Clustering methods can reduce the effort of manual classification ... -
Tectonostratigraphic evolution of the Sinu accretionary prism and Lower Magdalena forearc basin formed above a shallow-dipping subduction zone, Caribbean margin of Colombia
(2014-05-08)This dissertation is an integrated geologic and geophysical study of the slowly converging (20 mm/yr), amagmatic, and shallowly subducting (4-8˚) system of the Caribbean margin of Colombia that includes both its offshore ... -
What do Elementary and Secondary School Principals Report Regarding Effective Leadership in Schools with Predominantly African American Title I Student Populations: Implications for School Leaders
(2016-05-13)The purpose of this study was to explore the leadership capabilities needed to lead a school with a predominantly African American Title I student population. The study was conducted using a semi-structured interviews with ... -
A Study of the International Baccalaureate Middle Years Programme on Ninth Grade Student Achievement
The beginning of high school marks a significant shift in the academic demands placed on students (Roderick, 2006). In public school systems, as students transition from middle school to high school, they experience changes ... -
THE RELATIONSHIP BETWEEN RACE/ETHNICITY AND OTHER DEMOGRAPHIC VARIABLES AND LEVEL OF ADHD KNOWLEDGE: COMPARING PRE-SERVICE AND IN-SERVICE TEACHERS
(2014-08-11)Attention-Deficit Hyperactivity Disorder is one of the most common psychiatric diagnoses in children (Pelham, Fabiano & Massetti, 2005). Teachers are often the primary source for ADHD referrals (Snider, Frankenberger, & ... -
The Creation and Development of the Academic Competency Teasing Scales
(2014-05-20)The current study examines the construct of academic competency teasing. While research has shown that competency teasing is one of the most frequent forms of teasing, research in this area remains sparse. Only two currently ... -
MAGNETIC, SUPERCONDUCTING AND TOPOLOGICAL ORDERS IN IRON-BASED t2g SYSTEM
(2014-03-24)Iron-based superconductors (FeSCs) are a class set of high-temperature supercon- ductor (HTS) based on different crystal structure and pairing symmetry from the Cu- based HTS. The world’s physicists, chemists and scientists ... -
Fast Lean-Rich Cycling for Enhanced NOx Conversion on Storage and Reduction Catalysts
(2014-05-28)Lean NOx (NO + NO2) reduction was carried out using rapid periodic injection of C3H6 over a NOx storage and reduction (NSR) monolith catalyst containing Pt/Rh/BaO/CeO2/Al2O3. The effects of injection speed, feed temperature, ... -
TOWARDS RETINA REGENERATION: THE EPIGENETIC BASIS OF NEURONAL AND AXON GUIDANCE GENE REGULATION
Degenerative disorders, such as glaucoma are among the leading causes of irreversible blindness worldwide. With these disorders affecting a larger fraction of the population yearly, the need for regenerative retina and ... -
THE INFLUENCE OF EARLY MUSIC ON THE COMPOSITIONAL STYLE AND PERFORMANCE OF SELECTED WORKS OF RANDALL THOMPSON
(2016-01-12)Composer and conductor Randall Thompson (1899–1984) had a significant impact on choral music in America during the twentieth century. While his contemporaries were striking out in more progressive directions, Thompson ... -
HISPANIC FAMILIES’ ATTITUDES TOWARDS THEIR HERITAGE LANGUAGE IN HOUSTON AND ITS SUBURBS
(2016-01-05)The following study explores the attitudes of 40 Hispanic families towards Spanish and their ethnic community in Houston and its suburbs. The research participants included 20 Colombian families and 20 Mexican families. A ... -
FAVORITE FOR JESUS, RETWEET FOR BUDDHA: A CONTENT ANALYSIS OF RELIGIOUS LEADERS ON TWITTER
(2016-01-25)This study examined the content published by two international religious leaders on the social networking site, Twitter. Word and phrase frequency analyses were used to examine all words and word pairings across the religious ... -
“STAR CROSS’D LOVERS:” WILLIAM SHAKESPEARE, HARRIET SMITHSON AND HECTOR BERLIOZ,AND THE CONUNDRUM OF ROMÉO ET JULIETTE
(2015-07-08)Harriet Smithson began her theatrical career as a mediocre Irish actress seeking success in England. Ironically, she received stardom in Paris during an 1827 season of Shakespeare presented by a British troupe. During these ... -
Enhancement of EPIR Switching Characteristics of PCMO RRAM Using Oxygen Deficient Al2Ox Diffusion Barrier
(2014-06-09)Resistive random access memory has gained lots of interest in the last decade as a promising replacement for non-volatile memory. Device retention stability and electric pulse induced resistance switching (EPIR) ratio ... -
NUMERICAL SIMULATION AND MODELING OF CELL MOTION IN MICROCHANNELS
(2013-12-17)The motion of cells in flow has been studied in vivo, in viro, and in silico. Different models have been developed. In this dissertation we have compared the cell mostion with Navier-Stokes model and the Stokes model in ... -
Feedback Control of CubeSat for Attitude and Trajectory Corrections
(2014-01-09)In order to analyze the performance of Cube Satellites with regards to orbit maintenance and attitude maneuvers, a three unit (3U) CubeSat with a mass of four kilograms in six degrees of freedom, is studied and modeled in ... -
Design and control of the dielectric properties of metal-polymer based artificial nanodielectrics for embedded capacitor applications
(2014-01-07)Extensive research is being done today on embedded capacitors because of their promising applications in energy storage solutions, microelectronics products, and packaging. However, selection of materials and process issues ... -
FROM PROBLEM GIRLS TO WELFARE QUEENS: TEENAGE PREGNANCY AND PUBLIC POLICY, 1950-1980
(2015-05-05)By the 1976, newspapers, parents, and politicians feared that an “epidemic” of teenage pregnancy was sweeping the United States. Their anxiety stemmed not from a statistical rise in the rate teenage pregnancy but from ... -
Reliable Route Planning for Emergency Evacuation
(2013-05-16)Large scale evacuations are important in the wake of events such as an anticipated strike of a natural disaster or a looming military attack. Planning to evacuate people towards safe areas and effective management of the ... -
Atomistic Study of Grain Boundary Sliding
(2013-05-31)Creep is the time-dependent mechanical plastic deformation at high temperatures (usually higher than half of the melting temperature) and stresses far below the yield stress. In both the creep deformation and damage, grain ...
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