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Topping The Queue: A Mixed Methods Exploration Of Principal Selection In Mississippi's Public School Districts, Angela Dawn Elder Quinn Jan 2016

Topping The Queue: A Mixed Methods Exploration Of Principal Selection In Mississippi's Public School Districts, Angela Dawn Elder Quinn

Electronic Theses and Dissertations

As a result of the competitive principal market and the varying qualities of a perfect job applicant, information is critical to job candidates, educational leadership program developers, and superintendents or members of school hiring committees. Informed by research from the fields of industry and education, this study utilized explanatory sequential mixed methods design to identify and describe the process, the participants, and the prominent factors involved in the selection of principals for k-12 schools in Mississippi. Non-parametric quantitative analysis and qualitative thematic coding were used in seeking to answer four critical related questions for those seeking to find effective school …

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Lesbian, Gay, Bisexual And Transgender Culture In Contemporary China, Guojuan Li Jan 2016

Lesbian, Gay, Bisexual And Transgender Culture In Contemporary China, Guojuan Li

Electronic Theses and Dissertations

For a long time, topics on lesbian, gay, bisexual and transgender(LGBT) are regarded as taboo in China. On June 26, 2015, the United States passed the same-sex marriage law promoted an intense discussion in Chinese society. Lots of LGBT people started to fight for their rights and many netizens also expressed a desire for the legalization of same-sex marriage in China. However, is China really ready for legalizing the law? This paper gives an answer to this question from an historical view.

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On Variable Bandwidth Kernel Density And Regression Estimation, Janet Nakarmi Jan 2016

On Variable Bandwidth Kernel Density And Regression Estimation, Janet Nakarmi

Electronic Theses and Dissertations

We study the ideal variable bandwidth kernel density estimator introduced by McKay (1993) and the plug-in practical version of the variable bandwidth kernel density estimator with two sequences of bandwidths as in Ginè and Sang (2013).We estimate the variance of the variable bandwidth kernel density estimator. Based on the exact formula of the bias and the variance of the variable bandwidth kernel density estimator, we develop the optimal bandwidth selection of the true variable bandwidth kernel density estimator. Furthermore, we present the central limit theorem of the true variable bandwidth kernel density estimator. We also propose a new variable bandwidth …

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Music Education At The Troy Female Seminary: 1817-1904, Jennifer Elizabeth Peck Campbell Jan 2016

Music Education At The Troy Female Seminary: 1817-1904, Jennifer Elizabeth Peck Campbell

Electronic Theses and Dissertations

When examining the historical origins of music education in the United States there exists a gap in the research concerning female music educators. There have been many calls to action by researchers with the aim of focusing research on the contribution of women to music education. This project sought to document details about musical studies and female music educators at one institution of higher learning. The Troy Female Seminary was founded by Emma Hart Willard in 1817 and exists today as an independent secondary school for females (renamed the Emma Willard School in 1895). Relevant books, journal articles, master’s theses, …

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1:1 Laptop Experience And High-Stakes Testing: Effects On Eighth-Grade Student Achievement, Mary Lea Johnson Jan 2016

1:1 Laptop Experience And High-Stakes Testing: Effects On Eighth-Grade Student Achievement, Mary Lea Johnson

Electronic Theses and Dissertations

Research on 1:1 laptop implementations is missing key information about student achievement on high-stakes assessment. This post hoc, quasi-experimental, quantitative study explores how 1:1 laptop access affects student achievement on the mandated eighth-grade online science assessment in five Mississippi school districts throughout the state. Fifth-grade science assessment results are used as a baseline for student achievement. Three research questions examined mean scale scores on the science assessment, change in scores from fifth to eighth-grade, and the effect on scale scores as the duration of the 1:1 laptop implementation increased. Two of the three experimental districts shoa significant difference in the …

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Diffusion And Invasion Percolation: A Coupled Model To Simulate The Fate Of Trapped And Compressed Gases In Partially-Saturated Low Permeability Media, Ross Berry Jan 2016

Diffusion And Invasion Percolation: A Coupled Model To Simulate The Fate Of Trapped And Compressed Gases In Partially-Saturated Low Permeability Media, Ross Berry

Electronic Theses and Dissertations

No abstract provided.

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Comparing University Student Performance In Online V. Face-To-Face Offerings Of The Same Course, And Investigating Student Perceptions Of Satisfaction In An Online Course, Kristin Davidson Jan 2016

Comparing University Student Performance In Online V. Face-To-Face Offerings Of The Same Course, And Investigating Student Perceptions Of Satisfaction In An Online Course, Kristin Davidson

Electronic Theses and Dissertations

Online education in the United States has seen dramatic growth for the past decade, outpacing any other growth in higher education. The concurrent mixed-methods study that was conducted for this research used data from a survey geology course taught in both environments, online and traditional face-to-face. The quantitative research focused on comparing student performance in an online course relative to the same face-to-face course, while the qualitative research investigated how students described their experiences taking an online class. Previous work in online education has been limited by relatively small sample sizes, conducting studies over just one semester, comparing dissimilar courses …

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A Study Of The Mechanical Behavior Of Composite Materials Exposed To Corrosive Environments, Ryan Keith Hedgepeth Jan 2016

A Study Of The Mechanical Behavior Of Composite Materials Exposed To Corrosive Environments, Ryan Keith Hedgepeth

Electronic Theses and Dissertations

A collaborative study was conducted to examine the degradation of commercially pultruded uni-directional e-glass composites. The case study specimens, including a variety of commercially pultruded polyester/e-glass and vinylester/e-glass composites were exposed to corrosive environments, namely: distilled water (h2o), bleach (naclo), and hydrochloric acid (hcl) for a minimum of 60 days, and the degradation was analyzed. Such a study was chosen on two accounts, 1) to contribute viable data to industry and research and 2) to provide data to be used to develop a standardized practice to characterize the durability for pultruded composites used for structural applications. A control group was …

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Computation Aided Design Of Multicomponent Refractory Alloys With A Focus On Mechanical Properties, Paul Daniel Clark Jan 2016

Computation Aided Design Of Multicomponent Refractory Alloys With A Focus On Mechanical Properties, Paul Daniel Clark

Electronic Theses and Dissertations

Quantum mechanical calculations paired with exponential growth in computer processing speed has created a paradigm shift in materials discovery. Simulations can be carried out to accurately predict structure-composition-property relationships of novel systems. This work focuses on calculating elastic properties of high entropy alloys, a new class of alloys that are built from 4+ elements in equi-atomic proportion. These alloys often exhibit simple microstructures and each constituent element contributes its properties to the overall bulk properties of the amalgamated material. This "cocktail" effect has led to the discovery of many alloys which could drive technical advances in the future. Elastic properties …

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Constant Velocity Combustion Scramjet Analysis, Lakshmi Srikanth Tiruveedula Jan 2016

Constant Velocity Combustion Scramjet Analysis, Lakshmi Srikanth Tiruveedula

Electronic Theses and Dissertations

The supersonic combustion ramjet or scramjet, is the most suitable engine cycle for sustained hypersonic flight in the atmosphere. The present work deals with the performance of a scramjet engine by parametrically analyzing the performance of the ideal scramjet using the engine parameters: specific thrust, fuel-to-air ratio, thrust specific fuel consumption, thermal efficiency, propulsive efficiency, overall efficiency and thrust flux. The objective of the work is to determine the desirable performance terms of the ideal scramjet, by varying three different candidate fuels and three different candidate materials for the combustion chamber. The engine parameters are related by the lower heating …

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Chaucerian Imperfections: The Other And The Turbulant Self, Ahmed Seif Jan 2016

Chaucerian Imperfections: The Other And The Turbulant Self, Ahmed Seif

Electronic Theses and Dissertations

This thesis is interested in forms of “imperfection” in Geoffrey Chaucer’s Canterbury Tales. I define “imperfection” as an authorial gesture performed to narrate an idealized virwhile depriving it from its idealism. The imperfection of a virtue, however, does not happen absolutely. It is the character’s incomplete, distorted, or decadent command of a given virtue, rather than the viritself, that makes it imperfect. Consisting of three chapters, the thesis examines Chaucer’s imperfection of things idealized within two medieval spaces: a) the ecclesiastical institution of Church and b) the secular institution of Knighthood. This is why the thesis settled on the Prioress’s …

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Lightning-Bug, At Noon, Jonathan Ross Veach Jan 2016

Lightning-Bug, At Noon, Jonathan Ross Veach

Electronic Theses and Dissertations

This manuscript of poetry explores, or seeks to explore, the role non-human nature plays in human imagination and thought. The poems attempt to overlay a physical landscape onto a landscape of a subjective imagination, while trying to explore the phenomenon of metaphor – an act that is simultaneously destructive and creative, but seems to be crucial for humans’ interpreting and articulating the world around them.

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Investigation Of Neural And Epithelial Cadherin Monomer Properties Using A Molecular Dynamics Approach, Lianyi Fan Jan 2016

Investigation Of Neural And Epithelial Cadherin Monomer Properties Using A Molecular Dynamics Approach, Lianyi Fan

Electronic Theses and Dissertations

Neural and epithelial cadherin are adhesion proteins intensely studied by our lab. Although the sequence, structure, and conformation are similar for the two cadherins, there are several physical properties that differ: dimerization affinity, dimerization kinetics, intermediate structure, and critical residues for dimerization. In the presence of calcium, cadherins are in equilibrium between monomeric and dimeric states, and the scope of this thesis focuses on monomeric cadherin. These molecular dynamics evaluations are based on the testing of specific hypotheses regarding the intramolecular interactions of neural and epithelial cadherin. We particularly focus on interactions involving critical residues at the N-terminus of the …

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Synthesis And Characterization Of Anhydrous Proton Conducting Polymer Electrolytes For Fuel Cell Applications, Buddika Mayomi Liyanage Jan 2016

Synthesis And Characterization Of Anhydrous Proton Conducting Polymer Electrolytes For Fuel Cell Applications, Buddika Mayomi Liyanage

Electronic Theses and Dissertations

Anhydrous H+ ion conducting and high temperature capability of polymer electrolytes are being investigated for use in applications such as batteries, fuel cells, electro chromic windows and light emitting devices. Fuel cells are efficient electrochemical energy conversion devices; they can generate greener energy from chemical fuels. The polymer electrolyte membrane is heart of most fuel cell designs separating the oxidant and fuel chambers and providing the medium to conduct H+ ions between the anode and the cathode. Our goal is to understand the molecular level details of anhydrous H+ conductivity through the synthesis and characterization of polymer electrolytes based on …

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Bringing The Best And Brightest To Teacher Education, Mary Ann Parker Jan 2016

Bringing The Best And Brightest To Teacher Education, Mary Ann Parker

Electronic Theses and Dissertations

This research discusses historical, societal, and educational contexts leading to negative perceptions of public school education in the United States. The qualitative phenomenological research study explored the lived experiences of students participating in a unique scholarship program for high achieving students in teacher education. The study focused on fellows participating in the Mississippi Excellence in Teaching Program (METP), a full scholarship opportunity allowing top performers to study secondary education at either Mississippi State University or the University of Mississippi. The study focused on University of Mississippi METP scholarship recipients and explored the conflict fellows experienced as a result of pursing …

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Performance Evaluation And Improvement Of Wireless Amplify-And-Forward Cooperative-Based Systems Under Nodes Mobility And Imperfect Csi Estimation Impacts, Yazid Khattabi Jan 2016

Performance Evaluation And Improvement Of Wireless Amplify-And-Forward Cooperative-Based Systems Under Nodes Mobility And Imperfect Csi Estimation Impacts, Yazid Khattabi

Electronic Theses and Dissertations

Cooperative communication techniques have been introduced in wireless networks to achieve spacial diversity-gain via the readiness of multiple users (via relays) to assist a source forwarding its data to a final destination. Cooperative communication techniques have shown their capability in improving system reliability and extending coverage area, and hence, it is believable that they will act as a promising technology for the coming fifth-generation (5G). Nevertheless, most existing work reported in literature on performance studies of wireless cooperative-based systems are based on the assumptions that the multipath fading channels among systems cooperating nodes are quasi-static (i.e., fading channels coefficients are …

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Biophysical Characterization Of A Proline Mutant Of Neural Cadherin, Keshia S. Dykes Jan 2016

Biophysical Characterization Of A Proline Mutant Of Neural Cadherin, Keshia S. Dykes

Electronic Theses and Dissertations

Cadherins are calcium dependent glycoproteins whose homophilic interactions mediate cell-cell adhesion in solid tissues. They are comprised of an extracellular region, a transmembrane region and a cytoplasmic region. The extracellular region plays a critical role in cadherin-mediated cell adhesion, and has five tandemly repeated ectodomains (ec1-ec5), with three calcium binding sites situated in each interface between the domains. Dimerization of cadherin occurs through formation of adhesive interactions between extracellular domains of cadherins from neighboring cells. Adhesive interaction occurs at the interfaces of ec1 domains of two molecules originating from different cell surfaces. Dimerization is critically dependent on the binding of …

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A Non-Classical Solution To Vague Persistence, Seth Waite Jan 2016

A Non-Classical Solution To Vague Persistence, Seth Waite

Electronic Theses and Dissertations

One comtheory of persistence is that things move through time as wholly present entities, moving from time to time as a complete unit. This theory, the endurance theory, has come under challenge by various authors, and this paper will defend the view from one such objection. Katherine Hawley argues that the endurance theory fails to account for vague persistence on the grounds that endurance cannot account for vagueness semantically. I will show that this claim is based on an assumption of classical logic and that by rejecting this assumption in favor of a non-classical logic the objection is rendered mute. …

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Ultrasonic Doppler Sonar Sensor System For Extraction Of Walk Signatures, Demba B. Komma Jan 2016

Ultrasonic Doppler Sonar Sensor System For Extraction Of Walk Signatures, Demba B. Komma

Honors Theses

In this work, a portable low cost sensor system is designed for the extraction of walking signatures in humans using the principle of Ultrasonic Doppler Sonar (UDS). UDS involves the use of two ultrasonic transducers acting as a transmitter-receiver pair. The transmitter produces a continuous ultrasonic signal at a specific frequency to be broadcasted onto a moving target, while the receiver will perform a frequency shift on the reflected signal in relation to the movement of the target. The sensor system used in this work is comprised of a frequency generator that drives the transducer with a 40 kHz sine …

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A Computational Study Of High Energy Density Materials And Their Detection Using Surface-Enhanced Raman Spectroscopy, Emily N. Hugo Jan 2016

A Computational Study Of High Energy Density Materials And Their Detection Using Surface-Enhanced Raman Spectroscopy, Emily N. Hugo

Honors Theses

The purpose of this thesis is to theoretically predict the vibrational spectra of select high energy density materials (HEDMs) as well as some of their byproducts and to determine if using surface-enhanced Raman spectroscopy (SERS) could be a viable detection method for these compounds. Studying the vibrational patterns of these compounds will help in identifying them in the environment for remediation purposes. Because the byproducts are smaller and easier to model than the parent compounds, these were studied more in depth through analyzing their Infrared and Raman spectra. Ag2 was used to model the interactions between the Ag nanoparticles used …

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A Practical Guide To Chemical Process Optimization: Analysis Of A Styrene Plant, Fleur Phelps Jan 2016

A Practical Guide To Chemical Process Optimization: Analysis Of A Styrene Plant, Fleur Phelps

Honors Theses

This report acts as a beginner's guide to chemical processes optimization. Performed universally, optimization merely entails improving an existing process, situation, device or system. For a chemical engineer, optimization typically aims to maximize potential economics of a chemical process by manipulating decision variables while staying within known constraints. In order to maximize the overall economics of a chemical process, individual equipment or stream conditions are examined. The chemical process is implemented in simulation software The optimization of individual components of the process may aim to maximize or minimize an outcome specific to that component, but still ultimately maximizes economic potential. …

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Multidimensional Motion Capture Using Doppler Ultrasound, Forrest Nolan Gamble Jan 2016

Multidimensional Motion Capture Using Doppler Ultrasound, Forrest Nolan Gamble

Honors Theses

Ultrasonic waves are used to measure the velocity of a target object by measuring the Doppler shift of the reflected waves. In this work, ultrasonic Doppler Sonar (UDS) was used to measure the velocity of objects, including a pendulum and a battery on a turntable. The investigation focused on developing a method to measure motion in two and three dimensions, for applications in gait analysis and sports motion capture. By using multiple ultrasonic transducers and novel data processing techniques, the UDS captured motion in two and three dimensions. In order to test the accuracy of the velocity and position measurements, …

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A Study On The Characterization And Implementation Of Tools For Advanced Ligo, Hunter Gabbard Jan 2016

A Study On The Characterization And Implementation Of Tools For Advanced Ligo, Hunter Gabbard

Honors Theses

The Laser Interferometer Gravitational Wave Observatory (LIGO) is aimed at directly detecting gravitational waves, small perturbations or ripples in the fabric of space-time. Because of their extreme sensitivity, the LIGO detectors are affected by many sources of non-astrophysical noise. In the first part of this thesis we test a pipeline designed for the identification of short-duration noise transients, called Omicron. We first inject simulated noise waveforms in engineering run data from the LIGO detector in Livingston, Louisiana and then determine Omicron efficiency by attempting to recover these injections. In the second part of this thesis, we present a novel method …

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Noise Reduction In The Manufacturing Environment: A Study On Small Jet Geometry Alterations, Shawn Wesley Skinner Jan 2016

Noise Reduction In The Manufacturing Environment: A Study On Small Jet Geometry Alterations, Shawn Wesley Skinner

Honors Theses

Noise pollution is an identified issue in manufacturing environments. While machines, motion, production, etc. are a large factor in this noise pollution, other sources exist. Often copper tubing is connected to pressurized containers as a make-shift jet stream for reorienting elements on the assembly line. These makeshift jets when working in conjunction create noise pollution. By manipulating the exit of these small jets, it is hypothesized that the noise level can be decreased. Using the National Center for Physical Acoustics (NCPA) at the University of Mississippi, three geometry alterations—deburring the end, creating a converging-diverging nozzle, and flattening the end—were tested …

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Supersonic Combustion Ramjet: Analysis On Fuel Options, Stephanie Barone Jan 2016

Supersonic Combustion Ramjet: Analysis On Fuel Options, Stephanie Barone

Honors Theses

This report focuses on different fuel options available to use for scramjet engines. The advantages and disadvantages of JP-7, JP-8, and hydrogen fuels are covered, also the effectiveness and requirements for each fuel are discussed. The recent history of the scramjet engine is included as well as its advantages and disadvantages. An explanation of what each fuel option encompasses and engineering analysis for each fuel are shown. The equations presented for the parametric analysis are shown as functions of the freestream Mach number, with the combustion Mach number as a parameter. The results can be seen for the theoretical possibilities …

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Indolizine-Squaraine Nir Emissive Materials, Tana A. Rill Jan 2016

Indolizine-Squaraine Nir Emissive Materials, Tana A. Rill

Honors Theses

Near-infrared (NIR) emissive organic materials are an emerging area of study with an array of applications for both military and civilian purposes including night vision technologies, secure communications, surveillance, homing, fluoresence imaging, secure displays as NIR OLED materials, heat-blocking coatings, in vivo fluoresence biological imagaing, and additional optoelectronics device applications. We have developed a series of organic NIR emissive materials based on an indolizine donor and squaraine acceptor. The novel-to-squaraine donor, indolizine, exhibits a remarkable increase in absorption maximum wavelength when compared with benchmark indoline-based squaraine dyes (700 nm vs. 625 nm) with molar absorptivities ranging from 100,000-262,000 M-1cm-1. Emission …

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Method Development Toward The Analysis Of The Functionalization Of Proteins, Victoria Calcote Jan 2016

Method Development Toward The Analysis Of The Functionalization Of Proteins, Victoria Calcote

Honors Theses

Calmodulin is a ubiquitous small intracellular protein that functions as a receptor for regulatory calcium signals and thus regulates a multitude of physiological processes in organisms as diverse as yeast, fruit flies, and mammals. Since its structure and function have been extensively studied, our goal is to create a calmodulin biomaterial, with the ultimate goal of in situ drug delivery or as a scaffold for stem cell growth and differentiation. We plan to create this biomaterial by using Click Chemistry, the rapid creation of new heteroatom bonds through a copper-catalyzed azide-alkyne cycloaddition. The bonds are created by treating calmodulin as …

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A Background And Chronological Take On High Frequency Trading, Quinn H. Murray Jan 2016

A Background And Chronological Take On High Frequency Trading, Quinn H. Murray

Honors Theses

The purpose of this thesis is to analyze, in context of high frequency trading, potential market manipulation techniques (i.e. market making arbitrage, statistical arbitrage, market structure arbitrage, and directional strategies), and to review the subject from a chronological perspective from the 1960s onward, covering topics not limited to Regulation National Market System, the flash crash of May 6, 2010, and the August 24, 2015 market crash. To date, high frequency trading's effects on the United States market place have been well documented. This thesis will speculate about the true nature—whether adverse or beneficial-- of this fascinating, evolutionary, highly scrutinized topic.

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Concussion In Women's Soccer: A Prescriptive Analysis Of Force Loading During Heading, James Michael Robinson Jan 2016

Concussion In Women's Soccer: A Prescriptive Analysis Of Force Loading During Heading, James Michael Robinson

Honors Theses

Women's soccer has the highest incidence of concussion among female sports. However, there has been relatively little research investigating the immediate and cumulative effects of soccer heading on brain injury, especially among youth. In an effort to better understand concussion in the often-underserved population of women high school soccer players, we investigated, both quantitatively and qualitatively, the nature of force loading during heading of a soccer ball. Data was collected from the Oxford High School Women's Varsity Soccer Team using X2 Biosystems' xPatch, which measures force loading magnitude and direction with six degrees of linear and rotational freedom using a …

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Conformational Analysis Of A Furan, Thiophene Alternating Π System, Laura Cline Jan 2016

Conformational Analysis Of A Furan, Thiophene Alternating Π System, Laura Cline

Honors Theses

Organic materials with conjugated Ï€-electron networks are increasingly being studied as an alternative to inorganic semiconductors. In order to effectively transport charge as a semiconductor, the organic materials should maintain a planar conformation, exhibit Ï€ conjugation, and be rigid to rotational interconversion. Both furan and thiophene systems have been investigated as potential organic semiconductors but difficulties with solubility, synthesis, and effectiveness hampered these efforts. A novel furan-thiophene hybrid system that exhibits promising semiconducting properties is examined here. Full geometry optimizations and corresponding harmonic vibrational frequency computations were run on a diverse set of potential furan and thiophene oligomer structures using …

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