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A Proposed Methodology For Predicting The Carbon And Nitrogen Stable Isotope Measures Of K'Inich Yax K'Uk Mo', Copan Dynastic Founder, Keith Edwards

Electronic Theses and Dissertations

The purpose of this thesis is to show that stable isotope analysis can be used to predict K’inich Yax K’uk Mo’s stable isotope measures based on Stuart’s (2007) hypothesis that K’inich Yax K’uk Mo’, the dynastic founder of the Copan royal lineage, was a Caracol lord. There is significant and convincing evidence that K’inich Yak K’uk Mo’ had a non-Copanec origin. Stable isotope analysis is a tested and reliable method for detailing diets and migratory paths of ancient humans and this theory is applied as a predictor of the stable isotope measures of K’inich Yax K’uk Mo’, if he did …

Rawls's Theory Of Justice A Necessary Extension To Environmentalism, Andrew Greene

Electronic Theses and Dissertations

John Rawls‟s stated intergenerational justice scheme, known as the just-savings principle, does not include an institutional concern for the environment and is therefore incomplete and incapable of maintaining meaningfully just relations between generations. The theory‟s emphasis on economic theory and capital accumulation demonstrates a misinterpretation of environmental issues and concerns as well as their underlying causes and repercussions. This lapse in Rawls‟s intergenerational scheme exposes flaws in his larger theory of justice by leaving the stability of society in question and placing arbitrary burdens on generations and peoples without institutional recourse. However, by supplementing justice as fairness (JAF) with Rawls‟s …

An Investigation Of The Effects Of Using Digital Flash Cards To Increase Biology Vocabulary Knowledge In High School Students With Learning Disabilities, Kelly J. Grillo

Electronic Theses and Dissertations

The field of science education, specifically biology, is becoming more challenging due to richer and more rigorous content demands. Along with new demands is the emergence of National Common Core Standards and End of Course Exams. Despite these changes, one factor remains consistent: As content knowledge increases, language demands also increase. For students with learning disabilities (LD), specifically those with language-based disabilities, the increasing vocabulary demand can lead to failure due not to a lack of understanding biology but the vocabulary associated with the content. In an attempt to impact high school students with learning disabilities‘ success in biology, a …

An Exploratory Quantitative And Qualitative Analysis Of Student Performance In Single-Gender Classrooms In One Florida Elementary Aschool Sic] 2006-2009, Lloyd Haynes

Electronic Theses and Dissertations

The purpose of this study was to determine the relationship of participation in single-gender classrooms on student performance on the reading and mathematics developmental scale scores (DSS) of third, fourth, and fifth grade students on the Florida Comprehensive Assessment Test (FCAT). The FCAT is a standardized test that is administered to all grade 3 through grade 10 public school students in the state of Florida and has been used to assess students‟ achievement in reading and mathematics. Students in grades 4, 8, and 10 have also been assessed in science and writing. This study was concerned only with FCAT reading …

The Tyler Perry Effect Examining The Influence Of Black Media Images On The Black Identity, Nicole E. Jackson

Electronic Theses and Dissertations

This study investigated the influence of Tyler Perry‟s House of Payne and Meet the Browns on black viewers‟ racial identity, based on a survey of 145 members of four predominantly African American churches in the Central Florida area. Mirroring Allen, Dawson, and Brown‟s (1989) model of an African American racial belief system, this study proposed that both shows would positively influence three dimensions of the black identity including closeness to blacks, black separatism, and the belief in positive stereotypes about blacks, while negatively influencing the dimension that emphasizes negative stereotypes about blacks. Socioeconomic status and religiosity were also hypothesized to …

Using Geographic Information Systems (Gis) In Spatial Analysis Of Mortuary Practices In The Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Elsalam, Heba Abd

Electronic Theses and Dissertations

This thesis focuses on the use of geographic information systems (GIS) to examine mortuary practices in the Romano-Byzantine period Kellis 2 cemetery located in the Dakhleh Oasis, Egypt. The first research objective examines the relationship between age, sex and grave substructures of 701 burials in Kellis 2 cemetery. The aim of this research objective was to determine if the presence and style of grave substructures were influenced by sex or age. Although not statistically significant, GIS analysis revealed that most of the graves in the Kellis 2 cemetery have no associated substructures, but of those that did have associated substructures, …

Innovative Pollutant Load Monitoring, Eric Gurr

Electronic Theses and Dissertations

Modern streamflow measuring equipment, water quality sampling techniques and a better understanding of pollutant washoff are continuously being developed as today's society is in critical need of improving water management, minimizing developmental impacts and preventing environmental hazards. In particular, the study of the spatial, temporal and volumetric characteristics of annual pollutant loading caused by variations in precipitation, land use and other anthropogenic factors is of great significance due to their relation to future global water demands. The research presented here falls in three parts. In the first part of the dissertation, an acoustical Doppler velocity profiler installed in a submerged …

An Adaptive Modular Redundancy Technique To Self-Regulate Availability, Area, And Energy Consumption In Mission-Critical Applications, Rawad N. Al-Haddad

Electronic Theses and Dissertations

As reconfigurable devices' capacities and the complexity of applications that use them increase, the need for self-reliance of deployed systems becomes increasingly prominent. A Sustainable Modular Adaptive Redundancy Technique (SMART) composed of a dual-layered organic system is proposed, analyzed, implemented, and experimentally evaluated. SMART relies upon a variety of self-regulating properties to control availability, energy consumption, and area used, in dynamically-changing environments that require high degree of adaptation. The hardware layer is implemented on a Xilinx Virtex-4 Field Programmable Gate Array (FPGA) to provide self-repair using a novel approach called a Reconfigurable Adaptive Redundancy System (RARS). The software layer supervises …

Modeling And Characterization Of Acute Stress Under Dynamic Task Conditions, Angel M. Millan

Electronic Theses and Dissertations

Stress can be defined as the mental, physical, and emotional response of humans to stressors encountered in their personal or professional environment. Stressors are introduced in various activities, especially those found in dynamic task conditions when multiple task requirements must be performed. Stress and stressors have been described as activators and inhibitors of human performance. The ability to manage high levels of acute stress is an important determinant of successful performance in any occupation. In situations where performance is critical, personnel must be prepared to operate successfully under hostile or extreme stress conditions; therefore training programs and engineered systems must …

Modeling Human Group Behavior In Virtual Worlds, Fahad Shah

Electronic Theses and Dissertations

Virtual worlds and massively-multiplayer online games are rich sources of information about large-scale teams and groups, offering the tantalizing possibility of harvesting data about group formation, social networks, and network evolution. They provide new outlets for human social interaction that differ from both face-to-face interactions and non-physically-embodied social networking tools such as Facebook and Twitter. We aim to study group dynamics in these virtual worlds by collecting and analyzing public conversational patterns of users grouped in close physical proximity. To do this, we created a set of tools for monitoring, partitioning, and analyzing unstructured conversations between changing groups of participants …

Effective Task Transfer Through Indirect Encoding, Phillip Verbancsics

Electronic Theses and Dissertations

An important goal for machine learning is to transfer knowledge between tasks. For example, learning to play RoboCup Keepaway should contribute to learning the full game of RoboCup soccer. Often approaches to task transfer focus on transforming the original representation to fit the new task. Such representational transformations are necessary because the target task often requires new state information that was not included in the original representation. In RoboCup Keepaway, changing from the 3 vs. 2 variant of the task to 4 vs. 3 adds state information for each of the new players. In contrast, this dissertation explores the idea …

Viability Study Of A Residential Integrated Stormwater, Graywater, And Wastewater Treatment System At Florida's Showcase Green Envirohome, Matthew Allen Goolsby

Electronic Theses and Dissertations

The subject of water scarcity and the rate of water consumption has become popular topics over the last few decades. It is possible that society may consume or contaminate much of the remaining readily available water if there is not a paradigm shift. This deep rooted concern has prompted investigations to identify alternative water use and treatment methods. Within this report, information is presented from the use of innovative water harvesting and on-site sewage treatment and disposal systems (OSTDS) at Florida’s Showcase Green Envirohome (FSGE.net), while also addressing low impact development (LID) practices. FSGE is a residential home that demonstrates …

Imaging Long-Range Orientational Order In Monolayers Of Amphiphilic Molecules With Scanning Probe Force Microscope And Liquid Crystal Optical Amplification, Wenlang Liang

Electronic Theses and Dissertations

Monolayers of amphiphilic molecules at interface provide a unique system for understanding the thermodynamic and rheological properties of quasi two-dimensional systems. They are also an excellent model accessible for studying cell membranes. The feature of longrange organization of molecular tilt azimuth in monolayers at the air/water interface is one of the most interesting findings over the past two decades, which leads to the formation rich and defined textures. By observing the changes in these textures, the transitions between tilted monolayer phases can be detected. We study the boojum and stripe textures formed in the liquid-condensed phase of pentadecanoic acid (PDA) …

Data-True Characterization Of Neuronal Models, Jose Suarez

Electronic Theses and Dissertations

In this thesis, a weighted least squares approach is initially presented to estimate the parameters of an adaptive quadratic neuronal model. By casting the discontinuities in the state variables at the spiking instants as an impulse train driving the system dynamics, the neuronal output is represented as a linearly parameterized model that depends on filtered versions of the input current and the output voltage at the cell membrane. A prediction errorbased weighted least squares method is formulated for the model. This method allows for rapid estimation of model parameters under a persistently exciting input current injection. Simulation results show the …

Models To Estimate Arrival Counts And Staffing Requirements In Nonstationary Queueing Systems Applied To Long Distance Road Races, Lindon P. Fairweather

Electronic Theses and Dissertations

We examine the problem of staffing refreshment stations at a long distance road race. A race is modeled as a mixed queueing network in which the required number of servers at each service station has to be estimated. Two models to represent the progress of runners along a long distance road race course are developed. One model is a single-class model that allows a road race manager to staff service stations assuming the runners are identical to those in some historical dataset. Another model is a multi-class simulation model that allows a road race manager to simulate a race of …

Field Implementation Of Polyacrylamide For Runoff From Construction Sites, Rafiqul Islam Chowdhury

Electronic Theses and Dissertations

Polyacrylamide (PAM) is often used a part of a treatment train for the treatment of stormwater to reduce its turbidity. This study investigated the application of PAM within various treatment systems for a construction site environment. The general concept is to introduce hydraulic principles when placing PAM blocks within an open channel in order to yield high mixing energies leading to high turbidity removal efficiency. The first part of the study observed energy variation using a hydraulic flume for three dissimilar configurations. The flume was ultimately used to determine which configuration would be most beneficial when transposed into field-scale conditions. …

Effect Of Acetic Or Citric Acid Ultrafiltration Recycle Streams On Coagulation Processes, Christopher C. Boyd

Electronic Theses and Dissertations

Integrating ultrafiltration (UF) membranes in lieu of traditional media filters within conventional surface water coagulation-flocculation-sedimentation processes is growing in popularity. UF systems are able to produce low turbidity filtered water that meets newer drinking water standards. For typical drinking water applications, UF membranes require periodic chemically enhanced backwashes (CEBs) to maintain production; and citric acid is a common chemical used for this purpose. Problems may arise when the backwash recycle stream from a citric acid CEB is blended with raw water entering the coagulation basin, a common practice for conventional surface water plants. Citric acid is a chelating agent capable …

Optimal Detour Planning Around Blocked Construction Zones, Mutasem Jardaneh

Electronic Theses and Dissertations

Construction zones are traffic way areas where construction, maintenance or utility work is identified by warning signs, signals and indicators, including those on transport devices that mark the beginning and end of construction zones. Construction zones are among the most dangerous work areas, with workers facing workplace safety challenges that often lead to catastrophic injuries or fatalities. In addition, daily commuters are also impacted by construction zone detours that affect their safety and daily commute time. These problems represent major challenges to construction planners as they are required to plan vehicle routes around construction zones in such a way that …

Incremental Lifecycle Validation Of Knowledge-Based Systems Through Commonkads, Feras Batarseh

Electronic Theses and Dissertations

This dissertation introduces a novel validation method for knowledge-based systems (KBS). Validation is an essential phase in the development lifecycle of knowledge-based systems. Validation ensures that the system is valid, reliable and that it reflects the knowledge of the expert and meets the specifications. Although many validation methods have been introduced for knowledge-based systems, there is still a need for an incremental validation method based on a lifecycle model. Lifecycle models provide a general framework for the developer and a mapping technique from the system into the validation process. They support reusability, modularity and offer guidelines for knowledge engineers to …

Analysis Of The Relationship Between The Level Of Educational Computer Game Use And Milken Exemplar Teacher Instructional Strategies, Yaela Dahan Marks

Electronic Theses and Dissertations

This research examines the nature and level of educational computer-based game techniques adoption by Milken Educator Award winning teachers in achieving success in their classrooms. The focus of the research is on their level of acceptance of educational computer-based games and the nature of game usage to increase student performance in the classroom. With Davis' (1985) Technology Acceptance Model (Davis, 1985) as the conceptual framework, the research also examines how teachers' perceptions of educational computer-based games influence their willingness to incorporate these teaching methods in their classroom. The approach utilizes a descriptive survey to develop and evaluate responses from exemplar …

Developing A Retrofitting System To Mitigate Floodwall Failures Of New Orleans, James Tyler Kidd

Electronic Theses and Dissertations

No abstract provided.

Examining Sleep Problems In Children With Autism Spectrum Disorders, Susan Moschos

Electronic Theses and Dissertations

Sleep problems are prevalent in children with neurodevelopmental disabilities such as autism spectrum disorders. Inadequate sleep can negatively affect the child's daily functioning as well as serve as a source of stress for the child's family. Although there is a growing body of literature aimed at improving sleep difficulties in children with disabilities, there is less known about sleep difficulties in children with autism spectrum disorders and a particular paucity in regard to treatment for sleep problems. The purpose of this paper was to investigate the effectiveness of a behavioral treatment package designed to reduce bedtime resistance and night awakenings …

Transmissive Olefination Of Alkenenitrile And Allylic Halides, Lihua Yao

Electronic Theses and Dissertations

Part 1. Grignard reagents readily add to alkenenitriles bearing an adjacent hydroxyl group to afford Z-alkenenitriles with transmissive relocation of the C=C bond. Mechanistically the transmissive olefination is consistent with rearrangement through a cyclic 6-membered transition structure in which the formal displacement of hydroxide occurs by forming magnesium oxide.

Part 2. Addition of niobium halides to a series of allylic or propargylic alkoxides directly provides allylic or allenic halides. Halogenation formally occurs through a metalla-halo-[3, 3] rearrangement although at least these different mechanisms may operate competitively. Transposition of the olefin is equally effective for allylic alkoxides prepared by necleophilic addition, …

Rhetoric Of Reconciliation: Implications From Bonhoeffer's [Work] For A Communicative Praxis Of Reconciliation Grounded In Christian Narrative, Charles E. Thomas

Electronic Theses and Dissertations

Reconciliation may broadly be considered as the repairing, restoring, and mending of that which has been broken, namely relationships be they interpersonal, communal, or national due to some type of conflict between two parties. This project seeks to establish a Rhetoric of Reconciliation as a narratively constructed ethical communicative praxis. The first chapter will consist of an overview of reconciliation. In the second chapter the major theoretical frameworks and scholarship in the field of reconciliation will be considered to establish a working understanding of the particular communicative processes of reconciliation and how these processes are narratively grounded. The major theoretical …

The Pursuit Of Divinity: Religious Faith And Fear In Late Victorian Women's Poetry, Sharon Lee George

Electronic Theses and Dissertations

The relationship that the Victorians had with their God(s) was not an easy one. Despite the age's oft mocked attachment to religiosity, many individuals underwent profound re-evaluations of their faith, spurred by the combined forces of legislation that challenged the monolithic Anglican Church and the burgeoning fields of High Criticism, scientific inquiry, and technology. For some, religious introspection led to profound spirituality and a deeper understanding of their Christian faith. Others were drawn to alternative systems of faith characterized by a fluidness of belief. Most found the process of navigating their faith to be terrifying because religion was a high-stakes …

Beyond The Bubble: Study Abroad And The Psychosocial And Career Development Of Undergraduates, Vera V. Chapman

Electronic Theses and Dissertations

Parents, as important constituents, along with accrediting bodies, are seeking to know more about how students are prepared “to work and ethically interact in an increasingly complex global community” (Rexeissen & Al-Khatib, 2009, p. 193). Exploration into the career developmental gains associated with study abroad is therefore of increasing importance. This study was driven by the following research question: What experiences and perspectives inform the psychosocial development [as defined by Chickering and Reisser (1993), including: developing competence, managing emotions, moving through autonomy toward interdependence, developing mature interpersonal relationships, establishing identity, and developing purpose] and career development (including career choice and …

Response Of Riparian Plant Communities To Hydrological Alteration: Are Seed Banks A Means Of Restoration?, Siobhan Boyer Gorham

Electronic Theses and Dissertations

The effects of anthropogenic modifications of stream systems on in situ plant community composition and seed bank composition were examined at five riparian sites in the Yazoo River watershed in northern Mississippi. This analysis was performed to determine if the soil seed bank can provide a means for the restoration of riparian floodplain plant communities. The study sites represented five different kinds of hydrological alteration: a highly incised riparian terrace isolated from the stream channel, a deforested original stream with reduced flow due to channelization and standing water due to levees, a forested original stream with reduced flow due to …

Meaning In Life, Depression, And Alcohol Use In A College Sample, Lindsay Wilson Schnetzer

Electronic Theses and Dissertations

The meaning construct has been researched over the last several decades, yielding important empirical advancements in our understanding of its impact on psychological well-being. Comdenominators among various definitions of meaning and life purpose are (1) an emphasis on the significance of life (2) an awareness of coherence, and (3) the fulfillment of unique purpose. Research suggests that meaning and depression are related yet distinct variables, that depression and alcohol abuse are comorbid, and that meaning and alcohol use are significantly associated. Because there is minimal research examining relations among all three variables, and because there have been inconsistent findings with …

Use Of Structure-And Ligand-Based Drug Design Tools For The Discovery Of Small Molecule Inhibitors Of Cysteine Proteases For The Treatment Of Malaria And Sars Infection, Falgun Shah

Electronic Theses and Dissertations

A wide array of molecular modeling tools were utilized to design and develop inhibitors against cysteine protease of P. Falciparum Malaria and Severe Acute Respiratory Syndrome (SARS). A number of potent inhibitors were developed against cysteine protease and hemoglobinase of P. falciparum , referred as Falcipains (FPs), by the structure-based virtual screening of the focused libraries enriched in soft-electrophiles containing compounds. Twenty one diverse, non-peptidic, low micromolar hits were identified. A combined data mining and combinatorial library synthesis approach was performed to discover analogs of virtual screening hits and establish the structure-activity relationships (SAR). However, the resulting SAR of the …

Conservation Genetics And Distribution Of The Yazoo Darter (Etheostoma Raneyi), Kenneth Alan Sterling

Electronic Theses and Dissertations

The Yazoo Darter is a range-restricted endemic fish in north-central Mississippi. Because the limited and fragmented range of this species puts it at risk of extinction, the Yazoo Darter has been classified as vulnerable or sensitive by several agencies and conservation organizations. However, the actual conservation status of this species is uncertain. Information necessary for conservation management is relatively sparse and is scattered among published and unpublished sources, particularly collection records. I have consolidated all known collection records for this species into a standardized database which has not only yielded valuable information presented here, but will provide a resource for …