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Large Eddy Simulation Of Surface Pressure Fluctuations Generated By Elevated Gusts, Jericho Erin Cain Jan 2013

Large Eddy Simulation Of Surface Pressure Fluctuations Generated By Elevated Gusts, Jericho Erin Cain

Electronic Theses and Dissertations

Wind gusts cause substantial damage to wind turbines. If these damaging winds could be detected prior to their interaction with the turbine, the turbine rotor can be decoupled from the generator and gearing system to prevent damage during the gust event. This would significantly reduce wind turbine repair costs. Wind gusts can also create unsafe conditions for aircraft landing. A ground based detection system that monitored elevated wind gusts can provide new information for pilots to use when determining whether or not it is safe to land. In addition, the ability to monitor elevated gust events would provide a new …


Determination Of Dimer Dissociation Constant Of Neural-Cadherin By Fluorescence Resonance Energy Transfer, Xiaoyun Z. Howard Jan 2013

Determination Of Dimer Dissociation Constant Of Neural-Cadherin By Fluorescence Resonance Energy Transfer, Xiaoyun Z. Howard

Electronic Theses and Dissertations

No abstract provided.


On Binary And Regular Matroids Without Small Minors, Kayla Davis Harville Jan 2013

On Binary And Regular Matroids Without Small Minors, Kayla Davis Harville

Electronic Theses and Dissertations

The results of this dissertation consist of excluded-minor results for Binary Matroids and excluded-minor results for Regular Matroids. Structural theorems on the relationship between minors and k-sums of matroids are developed here in order to provide some of these characterizations. Chapter 2 of the dissertation contains excluded-minor results for Binary Matroids. The first main result of this dissertation is a characterization of the internally 4-connected binary matroids with no minor that is isomorphic to the cycle matroid of the prism+e graph. This characterization generalizes results of Mayhew and Royle [18] for binary matroids and results of Dirac [8] and Lovász …


Two Methodologies: How Well Can Universities Predict Retention, Tiffany Lynette Gregory Jan 2013

Two Methodologies: How Well Can Universities Predict Retention, Tiffany Lynette Gregory

Electronic Theses and Dissertations

Student retention has been a long standing focus in higher education research with one of the earliest work dating back to 1937. Many researchers have proposed factors that affect a student's decision to depart from the university without successfully completing a degree. It is important to not only research different attributes and characteristics that affect student departure but it is also important to study different statistical methodologies. With the advancement in technology, new methodologies such as the Classification and Regression Tree (CART) have proven to yield significant results in a variety of research fields. As these new statistical methodologies emerge, …


Fiber Reinforcement Compaction In Resin Injection Pultrusion Process, Neerad Shakya Jan 2013

Fiber Reinforcement Compaction In Resin Injection Pultrusion Process, Neerad Shakya

Electronic Theses and Dissertations

Resin injection pultrusion is a cost-effective continuous manufacturing process to produce composites of constant cross-section. In this process, fiber reinforcements are continuously pulled through the injection chamber where liquid resin is injected to cause complete wetout of the fibers before exit. The fiber-resin combination obtained from the injection chamber is then cured to obtain the desired pultruded composite. There are various processing and geometric parameters affecting the wetout process. The main objective of this study is to present a numerical model to simulate the resin flow through the fiber reinforcement when compaction of the fibers is also taken into account. …


Early Transition Metal Ccc-Nhc Pincer Complexes: Synthesis, Characterization, And Catalysis, Theodore Rudy Helgert Jan 2013

Early Transition Metal Ccc-Nhc Pincer Complexes: Synthesis, Characterization, And Catalysis, Theodore Rudy Helgert

Electronic Theses and Dissertations

The previously reported amine elimination methodology for the metalation of CCC-NHC pincer ligand precursors has been extended to other early-transition metals and ligands. Specifically, synthetic results for the preparation of imidazole based CCC-NHC pincer Ti (IV), CCC-NHC pincer Ta (V) will be discussed. In addition, the synthesis of a new triazole based CCC-NHC pincer ligand precursor and its metalation with Ta (V) will be presented. Coordination sphere manipulation of the new pincer complexes using TMSCl for the Ti complex and lithium t-butylamide for the Ta complexes is also discussed. The reaction of the initial Ta CCC-NHC complex with lithium t-butylamide …


Method Development Using Laser Ablation And Solution Icpms And Their Application In Environmental Science And Forensic Provenance Studies, Kaixuan Bu Jan 2013

Method Development Using Laser Ablation And Solution Icpms And Their Application In Environmental Science And Forensic Provenance Studies, Kaixuan Bu

Electronic Theses and Dissertations

Inductively coupled plasma mass spectrometry (ICPMS) is an analytical technique that can be used to determine multiple elements and isotope ratios in a wide variety of samples. In this work, four projects are described that involve the method development using laser ablation (LA) and solution-based ICPMS and their application in environmental science and forensic (provenance) investigations. In the first project, plutonium (Pu) concentrations and 240Pu/ 239Pu atom ratios were measured in kelp, lichen, aquatic moss, and horse mussel collected on or near Amchitka Island, a former nuclear test in Alaska, and at a background site. The Pu in terrestrial and …


Sediment Control In Alluvial Rivers Using Simulation-Based Optimization, Moustafa Abdelkader Elgohry Jan 2013

Sediment Control In Alluvial Rivers Using Simulation-Based Optimization, Moustafa Abdelkader Elgohry

Electronic Theses and Dissertations

During storm events in rivers and watersheds, the peak runoff may creates excess erosion and deposition in channels or river reaches and cause changes in flow characteristics and fluvial geomorphology. Severe sediment erosion such as in-stream sever bed and bank erosion or gullying can threaten the stability of in-stream hydraulic structures, river banks, levees, and underground utilities. On the other hand, large amounts of sediment deposition can significantly reduce the flow capacity of channel or reservoir and increases further possibility of flooding. Therefore, sediment control is generally required for rivers and watersheds conservation purposes to maintain stable flow systems in …


Mathematical Tasks Without Words And Word Problems: Perceptions Of Reluctant Problem Solvers, Sydney Margaret Holbert Jan 2013

Mathematical Tasks Without Words And Word Problems: Perceptions Of Reluctant Problem Solvers, Sydney Margaret Holbert

Electronic Theses and Dissertations

This qualitative research study used a multiple, holistic case study approach (Yin, 2009) to explore the perceptions of reluctant problem solvers related to mathematical tasks without words and word problems. Participants were given a choice of working a mathematical task without words or a word problem during four problem-solving sessions. Data were gathered from problem-solving sessions, in the form of session transcripts, written reflections, and interviews to determine how the reluctant problem solvers perceived the problems presented in each session. Participants' views of the problems before and after working were recorded and thick descriptions of the sessions including quotes from …


Standardized Testing Placement And High School Gpa As Predictors Of Success In Remedial Math, Susan Carol Burrow Jan 2013

Standardized Testing Placement And High School Gpa As Predictors Of Success In Remedial Math, Susan Carol Burrow

Electronic Theses and Dissertations

The purpose of this quantitative study was to determine if a relationship existed between success in elementary algebra and a set of predictor variables including COMPASS score and high school GPA. Relationships for intermediate algebra and college credit accumulation over three semesters were also examined with COMPASS score and high school GPA as predictor variables. The study was conducted in a multi-campus regional rural community college in the southeast United States. The sample included 527 community college freshmen placing via COMPASS score into elementary algebra. Cases were sorted and 216 case level files were selected for study inclusion, 85% of …


Gravitational Waves From Perturbed Kerr Black Holes: Two Investigations, Zhongyang Zhang Jan 2013

Gravitational Waves From Perturbed Kerr Black Holes: Two Investigations, Zhongyang Zhang

Electronic Theses and Dissertations

This thesis includes two main projects. The first project is a study of the effect of black hole spin on the accuracy of the post-Newtonian approximation. We focus on the gravitational energy produced by the quasicircular, equatorial, extreme mass-ratio inspiral of a compact object into a Kerr black hole of mass M and spin J. For a given dimensionless spin a ≡ J/M2 (in geometrical units G = c = 1 ), the energy flux depends only on the orbital velocity v or (equivalently) on the Boyer-Lindquist orbital radius r. We investigate the formal region of validity of the Taylor …


Issue Publics Gone Wild Or The End Of Narrow Interests, Michael Calton Bowen Jan 2013

Issue Publics Gone Wild Or The End Of Narrow Interests, Michael Calton Bowen

Electronic Theses and Dissertations

Issue public theory holds that individuals are more likely to base political judgments, such as the decision of who to vote for on election day, on issues that are particularly important to them. This subset of issues is presumed to be relatively small in quantity for most individuals, allowing them to specialize in information gathering and attention. There is reason to believe the nature of issue publics has significantly changed in recent years as a result of profound shifts in the information environment. Many of the traditional findings within the literature are reassessed using data primarily from the 2008 Presidential …


An Implicit Finite-Volume Depth-Integrated Model For Coastal Hydrodynamics And Multiple-Sized Sediment Transport, Alejandro Sanchez Jan 2013

An Implicit Finite-Volume Depth-Integrated Model For Coastal Hydrodynamics And Multiple-Sized Sediment Transport, Alejandro Sanchez

Electronic Theses and Dissertations

A two-dimensional depth-integrated model is developed for simulating wave-averaged hydrodynamics and nonuniform sediment transport and morphology change in coastal waters. The hydrodynamic model includes advection, wave-enhanced turbulent mixing and bottom friction; wave-induced volume flux; wind, atmospheric pressure, wave, river, and tidal forcing; and Coriolis-Stokes force. The sediment transport model simulates nonequilibrium total-load transport, and includes flow and sediment transport lags, hiding and exposure, bed material sorting, bed slope effects, nonerodible beds, and avalanching. The flow model is coupled with an existing spectral wave model and a newly developed surface roller model. The hydrodynamic and sediment transport models use finite-volume methods …


A Gis-Based Watershed Impact Management Model, Chioma Nneamaka Udeze Jan 2013

A Gis-Based Watershed Impact Management Model, Chioma Nneamaka Udeze

Electronic Theses and Dissertations

Assessment of land use changes on hydrological processes is essential for the planning and development of sustainable land management practices and water resources. Understanding how land management practices influence hydrological components is essential for the prediction of hydrological consequences of changes in land use. Given the plethora of hydrological models, digital data sources, and the limited availability of observed data, it is difficult to quantify the impacts of land use changes on hydrology. In this study, a Watershed Impact Management (WIM) model framework was conceptualized. A case study of the Yocona River basin, Mississippi, was implemented with the soil and …


The Ole Miss, University Of Mississippi Jan 2013

The Ole Miss, University Of Mississippi

The Ole Miss (1897-)

The Ole Miss Annual 2013


Ph Dependent Proteolysis Of Neural Cadherin, Candice Ashton Walters Jan 2013

Ph Dependent Proteolysis Of Neural Cadherin, Candice Ashton Walters

Honors Theses

Cadherins are the primary calcium-dependent cell-cell adhesion molecule and are essential to vertebrates. They ensure the integrity of epithelial barriers that allow for maintenance of homeostasis in humans and protection against invading microorganisms. A common invader capable of forging past this line of defense is the fungus Candida albicans. The main virulence mechanism of C. alibans in acidic environments is its secreted aspartyl proteinases (SAPs), which are hydrolytic enzymes that degrade cadherin-mediated cell adhesion leading to infection of the underlying tissues. Cadherin is normally resistant to cleavage by proteases due to stabilization of the protein structure by bound calcium and …


A Raman Spectroscopic Study Of The Effects Of Hydrogen Bonding On 1,2,3-Triazole, Anna Craig Jan 2013

A Raman Spectroscopic Study Of The Effects Of Hydrogen Bonding On 1,2,3-Triazole, Anna Craig

Honors Theses

The goal of this thesis is to analyze the effects of hydrogen bonding on liquid 1H- 1,2,3-triazole. Spectra of neat 1H-1,2,3-triazole are compared to simulated spectra and are found to differ greatly. The experimental spectrum, however, matches the simulated spectra of 1H-1,2,3-triazole dimers very well. This suggests that dimers play a large role in the liquid structure of 1H-1,2,3-triazole. Though tautomerism is thought to play a large role in the vibrational behavior of 1,2,3- triazole, the Raman spectra obtained here suggest that molecular dimers dominate the liquid state much more so than tautomerism. Even in aqueous solution, the simulated spectra …


Spectroscopic Study Of Charge Transfer Induced Blue Shifting Of Pyrimidine/Water Mixtures On Silver Substrate, Annie Katherine Mcclellan Jan 2013

Spectroscopic Study Of Charge Transfer Induced Blue Shifting Of Pyrimidine/Water Mixtures On Silver Substrate, Annie Katherine Mcclellan

Honors Theses

Surface enhanced Raman spectroscopy (SERS) is a chemical method gaining much popularity in recent years. With the use of a roughened metal surface or metal nanoparticles, surface plasmon resonances enhance the electromagnetic field allowing for increased Raman signal. Pyrimidine, having two lone pairs of electrons, is capable of charge transfer interactions contributing to a SERS chemical enhancement factor as well. It has recently been reported that hydrogen bonding with water results in the blue-shifting of certain normal modes of pyrimidine. By comparing experimental polarized Raman spectra with the results of electronic structure calculations, the origin of this blue-shifting was found …


Enlightenment Science And Nano-Science: Creating Order Out Of Magic, Elizabeth Ramsey Frey Jan 2013

Enlightenment Science And Nano-Science: Creating Order Out Of Magic, Elizabeth Ramsey Frey

Honors Theses

People today live in a world dominated by technology. All of the conveniences and technologies people enjoy and utilize today, however, would not exist without the foundation of empirical science laid during the Enlightenment. This thesis looks at the Enlightenment both as a philosophical movement and as the setting of the Scientific Revolution. The leaders of the Enlightenment and Scientific Revolution began the tradition of utilizing reason in research, founded empirical science, and developed the scientific method. This thesis traces the development of science during the Enlightenment and seeks to prove that Enlightenment science set the stage for the science …


Gender, Sexuality, And Music Education, Jordan Wesley Tippitt Jan 2013

Gender, Sexuality, And Music Education, Jordan Wesley Tippitt

Honors Theses

Abstract: This thesis was written to study how inequalities of gender and sexuality reveal themselves in music education. I wanted to study gender and sexuality as a social construct to better understand how these groups have an effect on the music education experience. I found that music education is lagging behind most other academic subjects in understanding gender/sexuality; furthermore, the discipline does not seem to be heading in the right direction. I found it tremendously difficult to find any queer theory literature based around music education. After my research I concluded that in its current state, music education is not …


Communications : Methods And Applications For Financial Managers, James Carberry Jan 2013

Communications : Methods And Applications For Financial Managers, James Carberry

Guides, Handbooks and Manuals

No abstract provided.


Best Of 2012 ― #1: School Of Education Receives $5.7 Million From Hearin Foundation, Andrew Mark Abernathy Dec 2012

Best Of 2012 ― #1: School Of Education Receives $5.7 Million From Hearin Foundation, Andrew Mark Abernathy

University of Mississippi News

Funds will help enhance programs, tackle early childhood education


December 4, 2012, University Of Mississippi. Faculty Senate Dec 2012

December 4, 2012, University Of Mississippi. Faculty Senate

Meeting Minutes

Minutes for the December 4, 2012 meeting of the University of Mississippi Faculty Senate.


School-Induced Shame: A Qualitative Analysis Of College Freshmen’S K-12 Shame Experiences, Ann E. Monroe Dec 2012

School-Induced Shame: A Qualitative Analysis Of College Freshmen’S K-12 Shame Experiences, Ann E. Monroe

Journal of Contemporary Research in Education

This qualitative inquiry investigates shame theory and how societal shaming practices manifest themselves in our schools, examining specifically the negative effects of shame on human development. The researcher sought to understand the school-induced shaming experiences of recent high school graduates attending a four-year state university in the southern United States. Sixty-one college freshmen participated in the study. Written accounts of these individuals’ shame experiences were collected with 9 participants interviewed individually and in a focus group setting. By analyzing the school-induced shaming experiences of these individuals, the researcher was able to identify school practices, teacher actions, and peer-interactions that induce …


Leadership And Human Development, Dennis Bunch, Jennifer Fillingim, Joe Blackbourn Dec 2012

Leadership And Human Development, Dennis Bunch, Jennifer Fillingim, Joe Blackbourn

Journal of Contemporary Research in Education

This article describes Graves’ theory of sociological development and its applicability to leadership. The interrelationship of the most common levels of functioning, appropriate management techniques, and methods for facilitating the growth of organization members is examined.


Technically Speaking, David Rock Dec 2012

Technically Speaking, David Rock

Journal of Contemporary Research in Education

Guest column


Vol. 1, No. 2 (2012): Full Issue, Journal Editors Dec 2012

Vol. 1, No. 2 (2012): Full Issue, Journal Editors

Journal of Contemporary Research in Education

No abstract provided.


Ole Miss Engineer 2012-2013 Dec 2012

Ole Miss Engineer 2012-2013

Ole Miss Engineer

No abstract provided.


Um Education Student Helps Schools Get $3,000 In Grants, Andrew Mark Abernathy Nov 2012

Um Education Student Helps Schools Get $3,000 In Grants, Andrew Mark Abernathy

University of Mississippi News

Money buys literacy materials for North Panola, Okolona schools


Grants Help University Boost Number Of Minority Math And Science Graduates In Mississippi, Deborah A. Purnell Nov 2012

Grants Help University Boost Number Of Minority Math And Science Graduates In Mississippi, Deborah A. Purnell

University of Mississippi News

UM receives nearly $400,000 to increase number of STEM Ph.D.s