Digital Commons Network^™

Selected School Characteristics And Their Relationshipto High School Teacher Retention, Jhunu Mohapatra

Electronic Theses and Dissertations

This study was conducted to examine the perceptions of Orange County high school teachers and administrators regarding selected school characteristics and their relationship to teacher retention. The study was based on another investigation conducted by the Charlotte Advocates of Education (2004) inquiring into the working conditions in schools and their impact on teacher retention. A total of 292 teachers with less than 4 years of experience and 14 administrators with more than 1 year of experience responded to 25 survey items related to the 6 factors comprising positive school characteristics. Factors such as School Facility, Resources, and Professional Development contributed …

Performance Support And Usability:An Experimental Study Ofelectronic Performance Support Interfaces, Charles Rawls

Electronic Theses and Dissertations

This study evaluated the usability of two types of performance-support interfaces that were designed using informational and experiential approaches. The experiment sought to determine whether there is a relationship between usability and the informational and experiential approaches. The general population under study was undergraduate education major students from the University of Central Florida. From the general population of three educational technology instructor-led classes, 83 students were solicited to participate in the study by completing a class activity. From the general population, a total of 63 students participated in the study. By participating in the study, the students completed a task …

Email Utilization By University Employees And Its Relationship To Job Satisfaction, Anthony Recascino

Electronic Theses and Dissertations

The use of technology, such as electronic mail and the Internet, is becoming the norm in many workplaces. This is especially true in academic workplaces. The present study examined several issues related to electronic mail use and job satisfaction for employees within a higher education workplace. Results of the study found that administrative level employees both sent and received more email than non-administrative level staff. Job satisfaction was not found to be related to the amount of email sent or received. No difference in job satisfaction was found between employees at the main campus versus regional locations, nor was there …

La Conciencia Política Y Social De Luis Palés Matos: Otra Lectura De Su Poesía, Omar Carmona Sanchez

Electronic Theses and Dissertations

Throughout the decades, poetry has served as a literary vehicle to express and emphasize the emotions of a person. It has provided the substantial drive for the developed and the structure of individuals dedicated to a cause. This is the case of the Puerto Rican poet Luis Pales Matos, a man that used this method to make known the racial differences he found in his country and to clear a way for the Island's independence. Palés Matos dedications have made him one of Puerto Rico most significant poets. His is the first poet in the Spanish language to dedicate part …

The Effects Of Athletic Participation, Expectations About Counseling And Gender On Attitudes Toward Help Seeking Behaviors Among Community College Students, Jose Fernandez

Electronic Theses and Dissertations

Researchers have determined that college student-athletes are an underrepresented population when it comes to utilizing college counseling services. Traditional students have appeared for counseling services more so than student-athletes. The primary purpose of this study was to assess the relationships between attitudes toward help seeking behavior and (a) expectations about counseling, (b) athlete status, and (c) gender of respondent among community college students. The study included 195 students at a central Florida community college, 74 student-athletes and 121 non-athlete students. The participants were asked to convey their counseling expectations by completing the Expectations About Counseling-Brief Form. Respondents were also asked …

Synthesis, Characterizations, And Evaluation Of New Reactive Two-Photon Absorbing Dyes For Two-Photon Excited Fluorescence Imaging Applications, Katherine J. Hales

Electronic Theses and Dissertations

Recent, cooperative advances in chemistry, biology, computing, photophysics, optics, and microelectronics have resulted in extraordinary developments in the biological sciences, resulting in the emergence of a novel area termed 'biophotonics'. The integrative and interdisciplinary nature of biophotonics cuts across virtually all disciplines, extending the frontiers of basic cellular, molecular, and biology research through the clinical and pharmaceutical industries. This holds true for the development and application of the novel imaging modality utilizing multiphoton absorption and its extraordinary contribution to recent advances in bioimaging. Intimately involved in the revolution of nonlinear bioimaging has been the development of optical probes for probing …

Integrating Visual Thinking Strategies Into A Discipline Based Art Education Curriculum, Amanda Mcknight

Electronic Theses and Dissertations

No abstract provided.

Coalition Formation In Multi-Agent Uav Systems, Paul Dejong

Electronic Theses and Dissertations

Coalitions are collections of agents that join together to solve a common problem that either cannot be solved individually or can be solved more efficiently as a group. Each individual agent has capabilities that can benefit the group when working together as a coalition. Typically, individual capabilities are joined together in an additive way when forming a coalition. This work will introduce a new operator that is used when combining capabilities, and suggest that the behavior of the operator is contextual, depending on the nature of the capability itself. This work considers six different capabilities of Unmanned Air Vehicles (UAV) …

An Interactive Distributed Simulation Framework With Application To Wireless Networks And Intrusion Detection, Oleg Kachirski

Electronic Theses and Dissertations

In this dissertation, we describe the portable, open-source distributed simulation framework (WINDS) targeting simulations of wireless network infrastructures that we have developed. We present the simulation framework which uses modular architecture and apply the framework to studies of mobility pattern effects, routing and intrusion detection mechanisms in simulations of large-scale wireless ad hoc, infrastructure, and totally mobile networks. The distributed simulations within the framework execute seamlessly and transparently to the user on a symmetric multiprocessor cluster computer or a network of computers with no modifications to the code or user objects. A visual graphical interface precisely depicts simulation object states …

Three Dimensional Modeling Of Wekiva Springshed With Wash123d, Sandeep Paladagu

Electronic Theses and Dissertations

This thesis presents a three-dimensional groundwater modeling of Wekia springshed in central Florida using a numerical model, WASH123D. Springs have historically played an important role in Florida's history. The Wekiva River is a spring-fed system associated with about 19 springs connected to the Floridan aquifer. With increased urbanization and population growth in this region, there has been an increased strain on the water levels of Floridan aquifer which is a major source of potable water. Maintaining groundwater recharge to the aquifer is a key factor of the viability of the regional water supply as well as Wekiva ecosystem. Hence, the …

Evaluating The Effectiveness Of Training System Approaches For Highly Complex Flight Training, Maria Bauer

Electronic Theses and Dissertations

This research investigates the Training Effectiveness of a low-cost, PC-based training system when compared with two modes (motion and no motion) of a cab training system with large screen for various aviation flying tasks. While much research on this topic has been done in the past, advances in technology have significantly altered what is considered a "low-cost" "simulator." The technology advances have in effect increased the ability of a "low-cost" "simulator" to deliver desired experiences to the user. These "simulators" often are nothing more than PC training system, with only notional representations of the actual aircraft. This research considers the …

Applying Log-Linear Models And Gis To Study The Safety Of Pedestrians And Bicyclists : A Case Study Of Orange County School Children, Sai Srinivas Chundi

Electronic Theses and Dissertations

Abstract Pedestrian /bicycle safety of school children has been a growing menace that has been attracting attention from transportation professionals, school boards, media and the community all over the country. As such there has been a necessity to identify critical variables and assess their importance in pedestrian/bicycle crashes occurring in and around school zones. The current study is an endeavor in this direction. The literature review identified some studies that were conducted on school zone safety related to pedestrian/bicyclist crashes. Most of the studies pertained to crashes with all age groups. There have been few studies with emphasis only on …

Evaluation Of Proprietary Stormwater Treatment Devices In Field And Laboratory Conditions, Saheeda Marie Romah

Electronic Theses and Dissertations

Proper stormwater management acknowledges both water quantity and water quality. Historically, stormwater quantity and quality have been separately considered; runoff was routed as quickly as possible into the nearest body of water. Although this alleviates potential flooding concerns, water quality is often compromised. Common stormwater quality problems include gross pollutants, sediment, nutrients, and heavy metals. The chronic elevated presence of these pollutants is detrimental to the environment. As a result, the government has passed legislature to protect waterways. The passage of the National Pollution Discharge Elimination System (NPDES) permit requires that municipalities implement stormwater treatment techniques, known as Best Management …

Solar Driven Photoelectrochemical Water Splitting For Hydrogen Generation Using Multiple Bandgap Tandem Of Cigs2 Pv Cells And Thin Film Photocatalyst, Anant Jahagirdar

Electronic Theses and Dissertations

The main objective of this research was to develop efficient CuIn1-xGaxS2 (CIGS2)/CdS thin film solar cells for photoelectrochemical (PEC) water splitting to produce very pure hydrogen and oxygen. Efficiencies obtained using CIGS2 have been lower than those achieved using CuInSe2 and CuIn1-xGaxSe2. The basic limitation in the efficiencies is attributed to lower open circuit voltages with respect to the bandgap of the material. Presently, the main mechanism used to increase the open circuit voltage of these copper chalcopyrites (CuInSe2 and CuInS2) is the addition of gallium. However, addition of gallium has its own challenges. This research was intended to (i) …

Evaluation Of Toxic Cyanobacteria In Central Florida Stormwater Ponds, Robert Miller

Electronic Theses and Dissertations

Algal blooms are a common occurrence in water bodies of all shapes and sizes throughout the United States and countries around the world. The State of Florida is no exception to this phenomenon. Cyanobacteria, or blue-green algae, have proven to be of special concern due to its proliferation and potential to produce toxins that are harmful to humans, livestock and wildlife. A casual drive along the roads and in the neighborhoods of central Florida will confirm algal conditions in many areas. The potential for exposure to harmful and possibly fatal toxins associated with these algal blooms are becoming more evident …

Studies Of Liquid Crystal Response Time, Haiying Wang

Electronic Theses and Dissertations

In this dissertation, the response time issue of the liquid crystal (LC) devices is investigated in meeting the challenges for display and photonic applications. The correlation between the LC director response time and the optical response time is derived theoretically and confirmed experimentally. A major contribution of this thesis is that, based on the small angle approximation, we derive rigorous analytical solutions for correlating the LC director response time to its consequent optical response times (both rise and decay) of a vertical-aligned nematic LC cell. This work successfully fills the gap in the literature of LCD switching dynamics. An important …

Pseudomonas Aeruginosa 1244 Piliation: Environmental Signals And Regulation, Dana Furst

Electronic Theses and Dissertations

The presence of Pseudomonas aeruginosa 1244 pili on the bacterial surface is dependent upon the growth environment. Quantitative western immunoblot analysis showed that an agar plate promoted surface expression of pili, whereas bacterial cells grown in liquid broth lacked similar appendages. Hyperexpression of the pilA gene increased piliation in broth cells but not to the extent of plate cells. Real-time RT-PCR indicated that the pilA gene has the potential to be regulated posttranscriptionally, regardless of the growth environment.

The P. aeruginosa 1244 pilin glycan and lipopolysaccharide O-antigen are synthesized via the same biosynthetic pathway. Rabbits immunized with LPS-free pili produced …

A Nostalgic Reconsideration Of The Sublime In Aesthetics, Katherine Rhodes Fields

Electronic Theses and Dissertations

No abstract provided.

Eyes In The Text: Surveying The Ocular Aesthetic In Pat Barker's War Trilogy, James Hammond

Electronic Theses and Dissertations

In 1991, British novelist Patricia Barker published Regeneration, the first of three novels that portrayed the exploits of both factual and fictional characters during the darkest days of WWI. Barker's Eye in the Door (1993), followed by The Ghost Road (1995) for which she won the Booker Prize for Fiction, completed the series that explored the effects of combat on the human psyche. What emerges as a dominant feature of Barker's war novels is her depiction of the ocular sense. Reminiscent of Orwellianism, Barker's texts contain a seemingly ubiquitous ocular presence. For example, neurasthenic patients are scrutinized by army psychiatrists, …

Variability In Detection Of Fecal Coliforms And Escherichia Coli Through American Public Health Association Standard Methods Of Mfc, Mug And Verification Methods And The Differentiation Of Escherichia Coli Through Substrate Utilization Kinetics, Misty Schaubhut

Electronic Theses and Dissertations

No abstract provided.

Honor, Commerce, Suffrage, And Civil Rights, Sean Hughes

Electronic Theses and Dissertations

No abstract provided.

The Effects Of An Arts-Integrated Curriculum Compared To A Text-Based Curriculum In Sixth Grade Social Studies, Joanna Floyd

Electronic Theses and Dissertations

No abstract provided.

1 Cross + 3 Nails = 4 Sale : Religion On The Southern Roadside / By Joseph A. York, Joseph A. York

Electronic Theses and Dissertations

No abstract provided.

The Effects Of Electrode Geometry On Current Pulse Caused By Electrical Discharge Over An Ultra-Fast Laser Filament, Matthew Bubelnik

Electronic Theses and Dissertations

The time-resolved electrical conductivity of a short-pulse generated plasma filament in air was studied. Close-coupled metal electrodes were used to discharge the stored energy of a high-voltage capacitor and the resulting microsecond-scale electrical discharge was measured using fast current sensors. Significant differences in the time dependence of the current were seen with the two electrode geometries used. Using sharp-tipped electrodes additional peaks in the time-resolved conductivity were seen, relative to the single peak seen with spherical electrodes. We attribute these additional features to secondary electron collisional ionization brought about by field enhancement at the tips. Additional discrepancies in the currents …

Internet Advertising: Are We Breaking Ground Or Moving Dirt?, Jaime Marshall

Electronic Theses and Dissertations

Seeking to validate the Elaboration Likelihood Model (ELM) of Persuasion for the online advertising context, a laboratory experiment utilizing 240 undergraduates was conducted at a southeastern university. The quality of banner advertisement contents--product endorser (spokesperson) and arguments (headlines)--were manipulated testing the variables' effect on click-through and attitude toward the advertisement for groups with high and low levels of product category involvement. Exploring a replica of a popular music website, participants were exposed to the test banners on the site's homepage. Due to the limited number of click-throughs, the relationship between the independent variables and click-through could not be established. However, …

Assessing The Impact Of University Technology Incubator Practices On Client Performance, Thomas O'Neal

Electronic Theses and Dissertations

This research is designed to distinguish and describe or explain incubator practices that affect the performance of incubator clients of university technology incubator programs. The research focuses on understanding which practices significantly contribute to increasing job creation for the firms located in university based technology incubators. An increasing number of communities are embracing economic development strategies that target the high tech sector with high wage, high value jobs as a way to diversify their economies and boost local and regional economies. New economic development strategies include the notion of a creation strategy or "growing your own" instead of relying on …

Confocal Laser Scanning Microscopy As A Tool For The Investigation Of Tetracycline Fluorescence In Archaeologicalhuman Bone, Corey Maggiano

Electronic Theses and Dissertations

Fluorochromes such as tetracycline have been used to label bone for histomorphometric analysis, measuring bone formation, growth, maintenance, and pathology. More recently, similar fluorescence has been observed in ancient human bone. Attributed to tetracycline (TC) exposure, this phenomenon could affect various aspects of health during life and/or preservation of remains postmortem. Standard epifluorescence microscopy is the most common tool employed in the analysis of these labels. Though valuable, this technique is limited by its inability to penetrate bone three-dimensionally and its inclusion of out-of-focus light, possibly disrupting accurate analysis. Confocal Laser Scanning Microscopy (CLSM) has been demonstrated as a valuable …

Mama's On The Warpath : The Badwoman Tradition In Feminist Blues Literature / By Stephanie Ash Rodgers, Stephanie Ash Rodgers

Electronic Theses and Dissertations

No abstract provided.

A Comparison Of The Characteristics Of Men And Women With Bulimia Symptomology / By Karen Sheridan, Karen Sheridan

Electronic Theses and Dissertations

No abstract provided.

A Study Of The Influence Of Detail-Message Characteristics On Physicians' Beliefs About Medications And Credibility, Nekshan Jalnawala

Electronic Theses and Dissertations

No abstract provided.