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Historical Responses Of Marine Turtles To Global Climate Change And Juvenile Loggerhead Recruitment In Florida, Joshua Reece Jan 2005

Historical Responses Of Marine Turtles To Global Climate Change And Juvenile Loggerhead Recruitment In Florida, Joshua Reece

Electronic Theses and Dissertations

Marine turtle conservation is most successful when it is based on sound data incorporating life history, historical population stability, and gene flow among populations. This research attempts to provide that information through two studies. In chapter I, I identify historical patterns of gene flow, population sizes, and contraction/expansion during major climatic shifts. In chapter II, I reveal a life history characteristic of loggerhead turtles previously undocumented. I identify a pattern of juvenile recruitment to foraging grounds proximal to their natal nesting beach. This pattern results in a predictable recruitment pattern from juvenile foraging ground aggregations to local rookeries. This research …

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Native And Invasive Competitors Of The Eastern Oyster Crassostrea Virginica In Mosquito Lagoon, Florida, Michelle Boudreaux Jan 2005

Native And Invasive Competitors Of The Eastern Oyster Crassostrea Virginica In Mosquito Lagoon, Florida, Michelle Boudreaux

Electronic Theses and Dissertations

Populations of Crassostrea virginica within Mosquito Lagoon, Florida have recently undergone significant die-offs, which are a subject of major concern. Restoration efforts within Mosquito Lagoon are focusing on reconstructing the three-dimensional reef habitats. Before effective protocols can be established, however, important questions about the sources of juvenile and adult oyster mortality must be answered. Potential causes of Crassostrea virginica mortality in the Indian River Lagoon system include sediment loads, competition, predation, and disease. My research focused on the interactions between oysters and the competitors that may affect the settlement, growth, and survival of Crassostrea virginica. The four objectives of my …

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The Scholarship And Praxis Of Communication Ethics: Rhetorical Interruptions In Historical Narratives, Melissa Cook Jan 2005

The Scholarship And Praxis Of Communication Ethics: Rhetorical Interruptions In Historical Narratives, Melissa Cook

Electronic Theses and Dissertations

Creating a praxis model for performing communication ethics scholarship is important in Postmodernity, as a multiplicity of narratives requires knowledgeable life-long learners who are willing to understand historicity and one's place within traditions. This study relies on Alasdair MacIntyre's seminal work, A Short History of Ethics, as it provides an historical lineage of Western philosophers who wrote about ethics within the time span from ancient Greece, to modern day. Major metaphors are extracted from the works of these philosophers as guiding hermeneutical entrances into historical and temporally bound narratives, used as the praxis portion of this work. Narratives, epics and …

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Selenotrisulfide Derivative Of Alpha-Lipoic Acid: Evaluation In A Cell Culture Model For Potential Use As A Topical Antioxidant, Melenie Lee Alonis Jan 2005

Selenotrisulfide Derivative Of Alpha-Lipoic Acid: Evaluation In A Cell Culture Model For Potential Use As A Topical Antioxidant, Melenie Lee Alonis

Electronic Theses and Dissertations

Selenium is a required micronutrient in mammalian cells. It is incorporated in the form of selenocysteine into selenoenzymes such as glutathione peroxidase and thioredoxin reductase, and is absolutely required for activity. Thioredoxin reductase is necessary for reduction of oxidized thioredoxin and therefore plays a major role in maintaining the redox status of the cell. Glutathione peroxidase is responsible for reducing peroxides into their corresponding alcohols and water. Together, these selenoenzymes constitute a significant part of the cell's arsenal to defend itself against oxidative stress. Exogenous sources of oxidative stress, such as UV radiation, are capable of generating reactive oxygen species …

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How Leadership Affects Follower Satisfaction: The Federal Case, Tracey Trottier Jan 2005

How Leadership Affects Follower Satisfaction: The Federal Case, Tracey Trottier

Electronic Theses and Dissertations

This study focuses on the effect of leadership in the federal government. Using a slightly revised version of Bass's Full Range Leadership Model, the study examines the influence of transformational leadership, transactional leadership, and combination of the two on the perception of leadership effectiveness and follower satisfaction in the federal government. To establish if this revised model is consistent with federal employees' perception of effective leadership, if leadership in the federal government increases follower satisfaction, and if both the transactional and transformational leadership are important to followers' perception of leadership and their satisfaction, data from the 2002 Federal Human Capital …

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The Influences Of System Affiliation, Size, And Location On Bioterrorism Preparedness Among Florida Hospitals, Kourtney Scharoun Jan 2005

The Influences Of System Affiliation, Size, And Location On Bioterrorism Preparedness Among Florida Hospitals, Kourtney Scharoun

Electronic Theses and Dissertations

In the event of a bioterrorist attack, emergency departments are considered the first line of response for all acute levels of care. This study focused on hospital emergency departments in Florida and the activities, policies, and procedures involved in preparing for a bioterrorist attack. Hospital size, location, and system affiliation were related to attaining these levels, and their impact was assessed. Through a cross-sectional survey design, the physical properties of the 77 hospitals (i.e. facilities, equipment, communication systems, etc.), and the social characteristics of the organizations (managerial functions including: planning, training, financial, and environmental characteristics) were examined. One-way analysis of …

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Accuracy Of Parental Report On Phonological Inventories Of Toddlers, Kristin Marie Teske Jan 2005

Accuracy Of Parental Report On Phonological Inventories Of Toddlers, Kristin Marie Teske

Electronic Theses and Dissertations

Considering the diminishing availability of professional resources, increasing costs, and time requirements involved in early childhood mass screenings, parents are an essential source of information. In this study, the Survey of Speech Development (SSD) (Perry-Carson & Steel, 2001; Steel, 2000) was used to determine the accuracy of parents in reporting the speech sound inventories of their toddlers. Parents of 30 children, who were between the ages of 27 to 33 months old, completed the SSD prior to a speech and language assessment session. Based on assessment results, the children were classified as normal developing or language delayed. A 20-minute play …

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The Role Of Domain Expertise And Judgment In Dealing With Unexpected Events, Janeen Kochan Jan 2005

The Role Of Domain Expertise And Judgment In Dealing With Unexpected Events, Janeen Kochan

Electronic Theses and Dissertations

Unexpected events, particularly those creating surprise, interrupt ongoing mental and behavioral processes, creating an increased potential for unwanted outcomes to the situation. Human reactions to unexpected events vary. One can hypothesize a number of reasons for this variation, including level of domain expertise, previous experience with similar events, emotional connotation, and the contextual surround of the event. Whereas interrupting ongoing activities and focusing attention temporarily on a surprising event may be a useful evolutionary response to a threatening situation, the same process may be maladaptive in today's highly dynamic world. The purpose of this study was to investigate how different …

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Soil Microbial Community Dynamics In Florida Scrub Ecosystem, Maria Albarracin Jan 2005

Soil Microbial Community Dynamics In Florida Scrub Ecosystem, Maria Albarracin

Electronic Theses and Dissertations

Pyrogenic ecosystems are maintained by fires which vary in frequency, seasonality, and intensity. Florida oak-saw palmetto scrub ecosystem is characterized by fires occurring at intervals of 10-20 years. Diverse factors as private land acquisition and development has created a patchy distribution of scrub ecosystems and also interrupted the natural fire cycle. The effects of fire over plant regeneration and fauna habitat utilization of the scrub have been well characterized in previous research. In the present paper the objective is to characterize the short- and long-term fire effects on the soil microbial community. Fire effects were studied in a chronosequence, comprising …

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Effects Of A Shore Protection Project On Loggerhead And Green Turtle Nesting Activity And Reproduction In Brevard County, Florida, Kelly Brock Jan 2005

Effects Of A Shore Protection Project On Loggerhead And Green Turtle Nesting Activity And Reproduction In Brevard County, Florida, Kelly Brock

Electronic Theses and Dissertations

Marine turtle reproductive success is strongly correlated with the stability and quality of the nesting environment. Because females show fidelity to key nesting beaches, the management and physical characteristics of these beaches directly affect future generations of marine turtles and may be essential for the recovery of these threatened and endangered species. The impacts of beach restoration on loggerhead turtles (Caretta caretta) and on green turtles (Chelonia mydas) were investigated. Previous studies concerning beach nourishment projects have focused on loggerhead turtles. I compared data between nourished and non-nourished areas and between loggerhead and green turtles. I found, at one season …

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Expression Of Gal/Galnac Lectin Of Entamoeba Histolytica In Transgenic Chloroplasts To Develop A Vaccine For Amebiasis, Seethamahalakshmi Chebolu Jan 2005

Expression Of Gal/Galnac Lectin Of Entamoeba Histolytica In Transgenic Chloroplasts To Develop A Vaccine For Amebiasis, Seethamahalakshmi Chebolu

Electronic Theses and Dissertations

Amebiasis, also defined as invasive intestinal and extra intestinal amebiasis, is caused by Entameoba histolytica, an invasive protozoan parasite. World Health Organization (WHO) has reported that approximately 50 million people are infected each year causing an estimated 40 to 100 thousand deaths annually. Entameoba histolytica ranks only second to malaria as a protozoan cause of death. Amebiasis occurs world wide but people living in Central and South America, Africa and Asia are the majority to suffer from morbidity and mortality. The enteric parasite has no zoonotic reservoirs and insect vectors for its transmission and infects humans and non-human primates. Therefore, …

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Juvenile Green Turtle (Chelonia Mydas) Foraging Ecology:Feeding Selectivity And Forage Nutrient Analysis, Eliza Gilbert Jan 2005

Juvenile Green Turtle (Chelonia Mydas) Foraging Ecology:Feeding Selectivity And Forage Nutrient Analysis, Eliza Gilbert

Electronic Theses and Dissertations

For the endangered green turtle, Chelonia mydas, a fundamental component of recovery and conservation is an understanding of its foraging ecology. Foraging optimality models suggest animals will select resources of high quality over those of low quality. For green turtles, this behavior is important, as sufficient quantities of nutritionally adequate forage items are necessary for growth and reproduction. One intrinsic element in the understanding of green turtle foraging ecology is to identify and document the availability and quality of forage resources preferred by green turtles. The objectives of this study were: 1) determine whether juvenile green turtles showed a feeding …

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The Great Divide: Citizenship And Statelessness, Kristy Belton Jan 2005

The Great Divide: Citizenship And Statelessness, Kristy Belton

Electronic Theses and Dissertations

This thesis investigates the implications of State control of citizenship upon the individual's ability to choose membership in a given State polity. It briefly examines how States gained absolute control over the granting, denying and revoking of citizenship and demonstrates how the acquisition of citizenship and statelessness are both State-determined statuses. The repercussions of statelessness at the individual, regional and global levels are presented to demonstrate the severity of being unable to choose a citizenship. Efforts made by States and the international community to prevent and reduce statelessness are examined in order to illustrate the lack of prioritization given to …

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Mechanical Properties Of The Intervertebral Disc As An Estimator Of Postmortem Interval, Jennifer Noelle Jackson Jan 2005

Mechanical Properties Of The Intervertebral Disc As An Estimator Of Postmortem Interval, Jennifer Noelle Jackson

Electronic Theses and Dissertations

Currently, forensic scientists are only able to determine time since death (or postmortem interval) up to the first 60 hours. This is based largely on insect activity. Herein, it is proposed to use the degradation of the intervertebral disc (IVD) after death to determine a relationship between the mechanical properties of cadaveric tissue and time since death in order to extend the 60-hour window. To that end, 1 fresh human spine and 6 pig spines were each separated into sections (6 human and 48 pig), with each section having one intact disc. The sections were buried, unearthed, and cleaned, leaving …

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Real-Time Realistic Rendering And High Dynamic Range Image Display And Compression, Ruifeng Xu Jan 2005

Real-Time Realistic Rendering And High Dynamic Range Image Display And Compression, Ruifeng Xu

Electronic Theses and Dissertations

This dissertation focuses on the many issues that arise from the visual rendering problem. Of primary consideration is light transport simulation, which is known to be computationally expensive. Monte Carlo methods represent a simple and general class of algorithms often used for light transport computation. Unfortunately, the images resulting from Monte Carlo approaches generally suffer from visually unacceptable noise artifacts. The result of any light transport simulation is, by its very nature, an image of high dynamic range (HDR). This leads to the issues of the display of such images on conventional low dynamic range devices and the development of …

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Hiv/Aids Education In The Public High Schools Of Three Counties In Southwestern Pennsylvania, Timothy Sheets Jan 2005

Hiv/Aids Education In The Public High Schools Of Three Counties In Southwestern Pennsylvania, Timothy Sheets

Electronic Theses and Dissertations

Infection by HIV, the virus that causes AIDS, continues to grow worldwide. The only way to stop infection is to educate the population on prevention by identifying methods of transmission and behaviors that put a person most at risk. Schools are an effective place to teach young people about HIV. The Pennsylvania School Code requires that HIV/AIDS education be provided to all public school students while details of the instruction are locally determined. This study investigated HIV/AIDS education in three counties of southwestern Pennsylvania: what was included in the curricula, what was taught to the students, and how the content …

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Scene Monitoring With A Forest Of Cooperative Sensors, Omar Javed Jan 2005

Scene Monitoring With A Forest Of Cooperative Sensors, Omar Javed

Electronic Theses and Dissertations

In this dissertation, we present vision based scene interpretation methods for monitoring of people and vehicles, in real-time, within a busy environment using a forest of co-operative electro-optical (EO) sensors. We have developed novel video understanding algorithms with learning capability, to detect and categorize people and vehicles, track them with in a camera and hand-off this information across multiple networked cameras for multi-camera tracking. The ability to learn prevents the need for extensive manual intervention, site models and camera calibration, and provides adaptability to changing environmental conditions. For object detection and categorization in the video stream, a two step detection …

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A New Paradigm Of Modeling Watershed Water Quality, Fan Zhang Jan 2005

A New Paradigm Of Modeling Watershed Water Quality, Fan Zhang

Electronic Theses and Dissertations

Accurate models to reliably predict sediment and chemical transport in watershed water systems enhance the ability of environmental scientists, engineers and decision makers to analyze the impact of contamination problems and to evaluate the efficacy of alternative remediation techniques and management strategies prior to incurring expense in the field. This dissertation presents the conceptual and mathematical development of a general numerical model simulating (1) sediment and reactive chemical transport in river/stream networks of watershed systems; (2) sediment and reactive chemical transport in overland shallow water of watershed systems; and (3) reactive chemical transport in three-dimensional subsurface systems. Through the decomposition …

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Stormwater Irrigation Of Saint Augustine Grass: Nitrogen Balance And Evapotranspiration, Ewoud Hulstein Jan 2005

Stormwater Irrigation Of Saint Augustine Grass: Nitrogen Balance And Evapotranspiration, Ewoud Hulstein

Electronic Theses and Dissertations

A change in surface condition of a watershed, which is usually caused by development, can have measured effects on the naturally occurring hydrologic cycle and nitrogen cycle. This could result in environmental problems, such as reduced springflow and eutrophication. In an effort to address these issues, a combination of best management practices (BMPs) can be adhered to. The practice of using excess stormwater as a source for irrigation is proposed as a BMP for the minimization of impacts by development to the hydrologic and nitrogen cycles. To study the proposed BMP, a field experiment was installed in an outdoor location …

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Voice Track Computer Based Simulation For Medical Training, Alpesh Purshottam Makwana Jan 2005

Voice Track Computer Based Simulation For Medical Training, Alpesh Purshottam Makwana

Electronic Theses and Dissertations

Varying the delivery rate of audio-based text within web-based training increases the effectiveness of the learning process and improves retention when compared with a fixed audio-based text delivery rate. To answer this question, two groups of 20 participants and one group of 10 participants were tested using the Web-based Anatomy & Physiology course modules developed by Medsn, Inc. The control group received the static speed of 128 words per minute while the experimental group received the initial speed of 128 words per minute with the option to change the speed of the audio-based text. An additional experimental group received the …

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Grassland And Woodland Bird Occurrence And Habitat Selection In The Prairie-Forest Transition Zone Of Minnesota, Thomas Robert Cooper Jan 2005

Grassland And Woodland Bird Occurrence And Habitat Selection In The Prairie-Forest Transition Zone Of Minnesota, Thomas Robert Cooper

Electronic Theses and Dissertations

Numerous species of woodland and grassland nesting birds have experienced population declines in the midwestern United States. Habitat loss and habitat fragmentation are suspected to be two of the underlying causes for the population declines of woodland and grassland birds. The Minnesota Valley Wetland Management District (WMD) covers 14 counties in southeastern Minnesota in the transition zone between forested and prairie ecoregions. Little information is available relative to which birds are using grassland or woodland habitat within the WMD and how their presence or absence is related to the available habitat conditions. Therefore, my study objectives were to: 1) determine …

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Potential For Including A Sustainable Rural Development Function In The Conservation Security Program, Jean Michel Basquin Jan 2005

Potential For Including A Sustainable Rural Development Function In The Conservation Security Program, Jean Michel Basquin

Electronic Theses and Dissertations

Agri-environmental policy and rural development efforts in the United States do not always seem to operate on common ground, although the United States Department of Agriculture oversees some aspects of both of them. Both efforts target activities taking place in rural communities. The primary aim of this thesis is to see how the Conservation Security Program (C S P) of the 2002 Farm Bill might foster sustainable rural development by using specific strategies. The CSP is compared to France's Contrat Territorial d' Exploitation. Based on the findings of this analysis, tentative guidelines are suggested for implementation of the C S …

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Economic Impacts Of Alternative Sized Dairies In South Dakota, Erik Gerlach Jan 2005

Economic Impacts Of Alternative Sized Dairies In South Dakota, Erik Gerlach

Electronic Theses and Dissertations

South Dakota dairy production is declining in terms of number of dairy farms, number of dairy cows and volume of milk production. To reverse the decline, state policy makers and local action groups have worked to encourage dairy development, which has emerged primarily in South Dakota’s Interstate-29 (I-29) corridor. The milk production industry is trending towards larger units leading to a struggle between producers, local policy makers, and residents regarding locating larger dairy operations in eastern South Dakota. Therefore, it is important to know the economic impact of the dairy industry within South Dakota so informed decisions regarding the future …

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Response Of Vegetation And Endangered Waterbirds To Habitat Management Techniques At Kealia Pond National Wildlife Refuge, James Andrew Rader Jan 2005

Response Of Vegetation And Endangered Waterbirds To Habitat Management Techniques At Kealia Pond National Wildlife Refuge, James Andrew Rader

Electronic Theses and Dissertations

Habitat selection, reproductive effort, and habitat utilization of Hawai’ian stilts (Himantopus mexicanus knudseni) and Hawai’ian coots (Fulica alai) was studied on Kealia Pond National Wildlife Refuge in Mau’i, Hawai’i. Nesting behavior was confirmed following management treatments on the northern shore of Kealia Pond. Nests were dispersed or randomly spaced within vegetation patches or newly created mudflat habitat. Pickleweed and makai were the dominant vegetation surrounding the nest setting and utilized for nest substrate by Hawai’ian stilts and Hawai’ian coots respectively. Mechanical control treatments were implemented through monotypic stands of pickleweed to increase interspersion of open water and promote native vegetation. …

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Voip Traffic Carrying Capacity Of An Ad-Hoc Network, Rajagopal Sombhotla Jan 2005

Voip Traffic Carrying Capacity Of An Ad-Hoc Network, Rajagopal Sombhotla

Electronic Theses and Dissertations

No abstract provided.

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An Investigation Into The Apparent Loss Of Interest In Art During Adolescence / By Suzanna Turner Russell, Suzanna Turner Russell Jan 2005

An Investigation Into The Apparent Loss Of Interest In Art During Adolescence / By Suzanna Turner Russell, Suzanna Turner Russell

Electronic Theses and Dissertations

No abstract provided.

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Electronic Cooling Of Generic Transmitter, Jignesh Patel Jan 2005

Electronic Cooling Of Generic Transmitter, Jignesh Patel

Electronic Theses and Dissertations

No abstract provided.

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The Rake Hears More, Whitney Hubbard Jan 2005

The Rake Hears More, Whitney Hubbard

Electronic Theses and Dissertations

No abstract provided.

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Electronic Cooling Computer Model Verification And Predictions For A Generic Module Array Of Power Amplifier Chips Using Heat Pipes, Sridhar R. Nimma Jan 2005

Electronic Cooling Computer Model Verification And Predictions For A Generic Module Array Of Power Amplifier Chips Using Heat Pipes, Sridhar R. Nimma

Electronic Theses and Dissertations

No abstract provided.

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Quantitative Analysis Of Land Loss In Coastal Louisiana Using Remote Sensing / By Patrick M. Wales, Patrick M. Wales Jan 2005

Quantitative Analysis Of Land Loss In Coastal Louisiana Using Remote Sensing / By Patrick M. Wales, Patrick M. Wales

Electronic Theses and Dissertations

No abstract provided.

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