Digital Commons Network^™

Teacher Attrition And Retention In Exceptional Student Education: An Evaluation Of The Skills, Tips, And Routines For Teacher Success (Starts) Initiative Of Volusia County, Florida Schools, Mary Speidel

Electronic Theses and Dissertations

Teacher attrition affects the quality of services for students in K-12 education and poses an ongoing challenge for educational leaders, especially in the area of special education. Special educators leave the profession at higher rates than general educators. As a growing state, Florida has identified special education as a critical teacher shortage area. This study evaluated the Skills, Tips, and Routines for Teacher Success (STARTS) initiative of Volusia County Schools, a large district in east central Florida. Implemented in 2001 for new ESE teachers, STARTS offered four days of training in policies and procedures, curriculum, and classroom management. Research questions …

Famtile: An Algorithm For Learning High-Level Tactical Behavior From Observation, Brian Stensrud

Electronic Theses and Dissertations

This research focuses on the learning of a class of behaviors defined as high-level behaviors. High-level behaviors are defined here as behaviors that can be executed using a sequence of identifiable behaviors. Represented by low-level contexts, these behaviors are known a priori to learning and can be modeled separately by a knowledge engineer. The learning task, which is achieved by observing an expert within simulation, then becomes the identification and representation of the low-level context sequence executed by the expert. To learn this sequence, this research proposes FAMTILE - the Fuzzy ARTMAP / Template-Based Interpretation Learning Engine. This algorithm attempts …

Developing An Object-Oriented Approach For Operations Simulation In Speedes, Amit Wasadikar

Electronic Theses and Dissertations

Using simulation techniques, performance of any proposed system can be tested for different scenarios with a generated model. However, it is difficult to rapidly create simulation models that will accurately represent the complexity of the system. In recent years, Object-Oriented Discrete-Event Simulation has emerged as the potential technology to implement rapid simulation schemes. A number of software based on programming languages like C++ and Java are available for carrying out Object Oriented Discrete-Event Simulation. These software packages establish a general framework for simulation in computer programs, but need to be further customized for desired end-use applications. In this thesis, a …

System Design And Optimization Of Optical Coherence Tomography, Avni Ceyhun Akcay

Electronic Theses and Dissertations

Optical coherence imaging, including tomography (OCT) and microscopy (OCM), has been a growing research field in biomedical optical imaging in the last decade. In this imaging modality, a broadband light source, thus of short temporal coherence length, is used to perform imaging via interferometry. A challenge in optical coherence imaging, as in any imaging system towards biomedical diagnosis, is the quantification of image quality and optimization of the system components, both a primary focus of this research. We concentrated our efforts on the optimization of the imaging system from two main standpoints: axial point spread function (PSF) and practical steps …

Interferometry-Based Free Space Communication And Information Processing, Muzamil Arshad Arain

Electronic Theses and Dissertations

This dissertation studies, analyzes, and experimentally demonstrates the innovative use of interference phenomenon in the field of opto-electronic information processing and optical communications. A number of optical systems using interferometric techniques both in the optical and the electronic domains has been demonstrated in the filed of signal transmission and processing, optical metrology, defense, and physical sensors. Specifically it has been shown that the interference of waves in the form of holography can be exploited to realize a novel optical scanner called Code Multiplexed Optical Scanner (C-MOS). The C-MOS features large aperture, wide scan angles, 3-D beam control, no moving parts, …

The Effects Of A Responsibility-Based Character Education Program On Middle School Academic Achievement And School Climate At An International School In East Africa, Terry Allen Howard

Electronic Theses and Dissertations

The purpose of this research was to determine the effectiveness of a character education program on middle school student academic performance, effort and attitude about their school located in an international setting. Middle school students at the participating international school were assigned to either an experimental or control group. Those students in the experimental group classes received a series of 12 lessons focusing on the character trait of responsibility. Those students in the control group classes did not receive these lessons. Twelve responsibility-based lessons were presented to students in the experimental group. Student academic grades in six different academic subjects, …

Addressing The Impact That Workshop Site Coordinators And Administrators Have On The Teaching Of Science In The Classroom, Valerie Elaine Mckenna

Electronic Theses and Dissertations

This dissertation studied the beliefs and practices of principals, workshop site coordinators, and science support personnel in two Central Florida school districts and compared those beliefs and practices to the literature on effective science in-service education. It is important to understand these beliefs and practices because they directly affect the content and pedagogical knowledge of classroom teachers, yet this aspect of instructional practices has been ignored in the science education literature. This study used a grounded theory methodology using open-ended individual interviews, participants observation, and documented analysis. Constant comparisons were built through analyzing the data. The research shows that in-service …

Explanations In Contextual Graphs: A Solution To Accountability In Knowledge Based Systems, Brian W. Sherwell

Electronic Theses and Dissertations

In order for intelligent systems to be a viable and utilized tool, a user must be able to understand how the system comes to a decision. Without understanding how the system arrived at an answer, a user will be less likely to trust its decision. One way to increase a user's understanding of how the system functions is by employing explanations to account for the output produced. There have been attempts to explain intelligent systems over the past three decades. However, each attempt has had shortcomings that separated the logic used to produce the output and that used to produce …

Network Intrusion Detection: Monitoring, Simulation And Visualization, Mian Zhou

Electronic Theses and Dissertations

This dissertation presents our work on network intrusion detection and intrusion sim- ulation. The work in intrusion detection consists of two different network anomaly-based approaches. The work in intrusion simulation introduces a model using explicit traffic gen- eration for the packet level traffic simulation. The process of anomaly detection is to first build profiles for the normal network activity and then mark any events or activities that deviate from the normal profiles as suspicious. Based on the different schemes of creating the normal activity profiles, we introduce two approaches for intrusion detection. The first one is a frequency-based approach which …

Optical Wave Propagation In Discrete Waveguide Arrays, Jared Hudock

Electronic Theses and Dissertations

The propagation dynamics of light in optical waveguide arrays is characteristic of that encountered in discrete systems. As a result, it is possible to engineer the diffraction properties of such structures, which leads to the ability to control the flow of light in ways that are impossible in continuous media. In this work, a detailed theoretical investigation of both linear and nonlinear optical wave propagation in one- and two-dimensional waveguide lattices is presented. The ability to completely overcome the effects of discrete diffraction through the mutual trapping of two orthogonally polarized coherent beams interacting in Kerr nonlinear arrays of birefringent …

High Gain / Broadband Oxide Glasses For Next Generation Raman Amplifiers, Clara Rivero

Electronic Theses and Dissertations

Interest in Raman amplification has undergone a revival due to the rapidly increasing bandwidth requirements for communications transmission, both for long haul and local area networks, and recent developments in the telecom fiber industry and diode laser technology. In contrast to rare earth doped fiber amplifiers, for which the range of wavelengths is fixed and limited, Raman gain bandwidths are larger and the operating wavelength is fixed only by the pump wavelength and the bandwidth of the Raman active medium. In this context, glasses are the material of choice for this application due to their relatively broad spectral response, and …

The Use And Development Of Laser Microdissection To Separate Spermatozoa From Epithelial Cells For Str Analysis, Christine Sanders

Electronic Theses and Dissertations

Short Tandem Repeat (STR) analysis has become a valuable tool in identifying the source of biological stains, particularly from the investigation of sexual assault crimes. Difficulties in analysis arise primarily in the interpretation of mixed genotypes when cell separation of the sexual assailant's sperm from the victim's cells is incomplete. The forensic community continues to seek improvements in cell separation methods from mixtures for DNA typing. This report describes the use of laser microdissection (LMD) for the separation of pure populations of spermatozoa from two-donor cell mixtures. In this study, cell separation was demonstrated by microscopic identification of histologically stained …

An Action Research Study Involving Fifth-Grade Students Learning Fractions Through A Situative Perspective With Story Problems, Colleen Allen

Electronic Theses and Dissertations

The purpose of this action research study was to investigate the affects of teaching through a situative perspective with story problems on students' understanding of fraction concepts and operations in my fifth-grade mathematics classroom. Students participated in twelve weeks of instruction. Data was collected in the form of pre and post tests, audiotaped and videotaped recordings of instructional sessions, and student work samples. Data analysis revealed that my students constructed their own knowledge about various fraction concepts and operations because students engaged in discussions, after solving story problems, that developed, extended and restructured their knowledge. One example of this occurred …

Coherence Properties Of Optical Near-Fields, Adela Apostol

Electronic Theses and Dissertations

Next generation photonics-based technologies will ultimately rely on novel materials and devices. For this purpose, phenomena at subwavelength scales are being studied to advance both fundamental knowledge and experimental capabilities. In this dissertation, concepts specific to near-field optics and experimental capabilities specific to near-field microscopy are used to investigate various aspects of the statistical properties of random electromagnetic fields in the vicinity of optically inhomogeneous media which emit or scatter radiation. The properties of such fields are being characterized within the frame of the coherence theory. While successful in describing the far-field properties of optical fields, the fundamental results of …

Latinate Word Parts And Vocabulary:Contrasts Among Three Groups Comprisingthe Community College Preparatory Reading Class, Tom Bellomo

Electronic Theses and Dissertations

Students enrolled in a college preparatory reading class at one particular community college were categorized based on language origin. Native English speaking students comprised one group and foreign students formed two additional groups--students whose language origin was Latin-based (i.e. Romance languages) and students whose language origin was not Latin-based (i.e. Japanese). A pretest assessment measure was used to quantify the extent that pre-existing knowledge of Latinate word parts and morphologically complex vocabulary differed among groups based on language origin. The identical instrument served as a posttest to measure the extent that direct instruction in morphological analysis resulted in change among …

A Comparison Of Character Education Programs And Their Effects On Academic Achievement, Behavior, And Attendance, Beth Berger

Electronic Theses and Dissertations

The purpose of this study was to determine whether significant relationships existed between character education and the number of incidents of crimes and violence, attendance rates, and academic achievement in Florida public schools. Proponents of character education such as Lickona (1991) and Murphy (1998) posited that there was a positive correlation between teaching and practicing the six pillars of character education, and student achievement, and increased attendance. They also posited that there was a negative correlation between character education and incidents of crime and violence. The researcher acquired data in an attempt to determine whether or not the views of …

The Relationship Between Teacher Attitudes Toward Florida History And The Methods And Materials The Teachers Use To Teach Florida History, Elizabeth Dewey

Electronic Theses and Dissertations

Reacting to an impression that history is not viewed as significant as other curricular subjects such as reading, math, or science, there were multiple purposes for this research: first, to document the attitudes of the fourth grade teachers in one county in Florida towards the subject of Florida history. The teachers' perceptions of the importance of the topic to and for the students, to the administration, and to them personally was surveyed in addition to the perceived preparation of the teachers to teach Florida History. The second purpose was to ascertain the perception of fourth grade teachers regarding preference and …

Liquid Crystal Materials And Tunable Devices For Optical Communications, Fang Du

Electronic Theses and Dissertations

In this dissertation, liquid crystal materials and devices are investigated in meeting the challenges for photonics and communications applications. The first part deals with polymer-stabilized liquid crystal (PSLC) materials and devices. Three polymer-stabilized liquid crystal systems are developed for optical communications. The second part reports the experimental investigation of a novel liquid-crystal-infiltrated photonic crystal fiber (PCF) and explores its applications in fiber-optic communications. The curing temperature is found to have significant effects on the PSLC performance. The electro-optic properties of nematic polymer network liquid crystal (PNLC) at different curing temperatures are investigated experimentally. At high curing temperature, a high contrast, …

A Comparison Of The Perceived Leadership Characteristics Of Central Florida Middle And High School Principals And School Achievement Scores, Thomas Fisher

Electronic Theses and Dissertations

The purpose of this inquiry was to examine the possible extent to which specific, identifiable leadership characteristics of Central Florida school principals differ between middle and high school administrators, and to examine if these leadership characteristics display a relationship, either positively or negatively, with the obtainment of student scores on state measures of education accountability (FCAT reading scores). Data from the research sample were collected through the administration of a modified version of the Audit of Principal Effectiveness (APE), a survey instrument developed by Dr. Jerry Valentine through the Middle Level Leadership Center at the University of Missouri-Columbia (Valentine & …

Relationship Of Student Satisfaction Levels In Distance Learning And Traditional Classroom Environments At Embry-Riddle Aeronautical Unviersity, James Gallogly

Electronic Theses and Dissertations

The purpose of this study was to determine (a) what differences, if any, exist between Embry-Riddle Aeronautical University (ERAU) students enrolled in distance learning and traditional courses during 2004 with regard to their satisfaction with course quality and (b) the level of satisfaction of distance learning students with regard to online delivery technology and administrative services provided to them in distance learning. Data were gathered using information from 400 distance learning undergraduate students using the Distance Learning Student Response Questionnaire (DLSRQ) and 400 traditional undergraduate students using the Student Survey Form (SSF). These students were enrolled in at least one …

A Healthy Pregnancy Curriculum For Adolescent Mothers: Participants' Perceptions And Effects On Infants' Birth Weight, Rae Konjoian

Electronic Theses and Dissertations

The purpose of this study was to determine if there are differences in birth weight of infants, tobacco use during pregnancy, and Apgar scores of infants between pregnant adolescents who successfully complete a healthy pregnancy curriculum and those who do not and to further examine the adolescent mothers' perceptions of the major concepts included in a healthy pregnancy curriculum. The study involved the collection and analysis of retrospective data to determine differences in birth weight of infants, tobacco use during pregnancy, and Apgar scores of infants. Additionally, a questionnaire, focus group discussions, and follow-up interviews were conducted with former students …

A Study Of The Cost-Utility Of Outcomes Of Various Methods Of Increasing The Four-Year Graduation Rate In Osceola County Public Schools, Isaac Harold Berger

Electronic Theses and Dissertations

The purpose of this study was to determine which interventions were deemed to be effective at increasing the four-year graduation rate in Osceola District Schools. This had become a concern due to the fact that this rate had decreased in recent years, and may be utilized as a predictor of the dropout rate. The interventions were then prioritized according to Levin's cost-utility theory, so that the order of implementation could be prioritized. The study was conducted in January and February of 2005, and responses were elicited from 600 people. Students currently in Osceola District Schools high schools comprised 200 of …

The Public Policy Implications Of Audit Regulation: Three Studies Related To The Passage Of The Sarbanes-Oxley Act Of 2002, Steven Thornburg

Electronic Theses and Dissertations

This dissertation documents and evaluates certain financial and non-financial strategies used by the public accounting profession to influence audit regulation during the policy formation period of the Sarbanes-Oxley Act of 2002 (SOX). The dissertation is comprised of three separate, but related studies. Each study uses prior research in accounting and related disciplines to investigate significant aspects the profession's strategies. The first study evaluates the rationality and effectiveness of political action committee (PAC) contributions paid by the accounting profession to members of Congress. The study finds that the accounting profession rationally allocated more PAC contributions to top congressional leaders and to …

Examination Of The Reliability And Validity Of The Triage Assessment Survey: Organizations, Christian Conte

Electronic Theses and Dissertations

This study evaluated the reliability and validity of the Triage Assessment Survey: Organizations (TAS:O), a 27-item, 5-point, Likert summated rating scale. The participants consisted of 117 graduate students. All participants responded to the TAS:O after reading mild, moderate, marked and severe organizational crisis scenarios. Statistical analyses were performed on the data to determine the instrument's reliability and validity. The overall Cronbach's alpha and Spearman-Brown reliability tests were both .93. An item total correlation revealed that all but one item had statistically significant correlations. Factor analysis revealed three factors, confirming the hypothesis that the TAS:O is comprised of three distinct factors …

Effects Of Emotional Intelligence Training On Incarcerated Adult Males Involved In Pre-Release Programming, Holly Moore

Electronic Theses and Dissertations

This dissertation summarizes a study conducted to explore the effectiveness of emotional intelligence (EI) training for adult male inmates. Acts of crime and violence cause psychological repercussions to crime victims and financial burdens on our society. Historically, those involved in the criminal justice system have strived to gather knowledge about criminal behavior in order to guide interventions. Furthermore, research on potential interventions has been encouraged in order to support evidence-based rehabilitative efforts that may ultimately impact recidivism. Emotional intelligence is a relatively new construct that may be related to social functioning. The purpose of this study was to investigate the …

A Comparison Of Students' And Parents' Habits And Attitudes Toward Reading In Title I And Non-Title I Schools., Judy L. Netherland

Electronic Theses and Dissertations

This study describes and compares the reading habits and attitudes of students and parents in Title I and Non-Title I schools. The study was conducted because reading is an important basic skill that all children must acquire. The information gathered can be used to help parents provide beneficial experiences for their children in reading.

The literature review addresses literature and research related to factors identified as impacting readiness for school and reading achievement in elementary-age students. Research indicates that family structure, amount of time children spend watching television, availability of learning tools, and home literacy activities may be related to …

Race Reform In The Early Twentieth Century South: The Life And Work Of Willis Duke Weatherford., Sara Trowbridge Combs

Electronic Theses and Dissertations

Willis Duke Weatherford, a liberal pioneer in Southern race reform, argued that the ethics of Christianity obligated Southerners to address the social and economic problems faced by blacks in the early twentieth century. His strategy for improving race relations centred on educating Southerners and promoting economic uplift for blacks. Weatherford advocated race reform through the Young Men's Christian Association, the Southern Sociological Congress, and other voluntary organizations. He published books, taught courses, preached sermons, organized conferences, and raised funds from Northern philanthropists. Through an analysis of Weatherford's published writings and of his papers archived at the Southern Historical Collection, the …

Investigation Of The Relationship Between A Job-Embedded Model Of Professional Development And Reading Achievement Of Elementary School Students., Janet Faulk

Electronic Theses and Dissertations

The development of highly effective teachers is of interest to school systems because the quality of the teachers is associated with students' success. This study explored the relationship between teachers' participation in a job-embedded model of professional development and students' achievement in reading.

Teachers in the third grade and fifth grade at five different elementary schools received more than 100 hours of training. The reading achievement scores of students assigned to these teachers were compared to the scores of students whose teachers did not participate in the training. Findings in this study were mixed. Fifth-grade students whose teachers participated in …

Equity And Adequacy: A Funding Crisis In The Tennessee Education System., Scott F. Collins

Electronic Theses and Dissertations

Tennessee is experiencing a budget crisis related to the dollar amount per-pupil expended on kindergarten- through 12th-grade education when compared to other states. Public schools across America are operating in a time of increased expectations. Recent legislative initiatives at both the state and federal level have created new systems of testing and performance standards that will hold schools and teachers accountable for students' achievement. Given the rapid changes that are being made, many state policymakers have noted the importance of designing better financial schemes for public schools with sufficient resources to meet the demand for better education; however, funding and …

A Study Of General Education Assessment., Debra Leonard Scott

Electronic Theses and Dissertations

This study was a correlational investigation of the effect of student demographic characteristics, prior academic performance, college academic performance, and college status on general education achievement at a rural community college in Tennessee. The criterion variable in this study was student performance on the Academic Profile examination, a nationally normed standardized test published by the Educational Testing Service that is designed to measure academic skills in general education subject areas.

The population for this study included students at Walters State Community College located in Morristown, Tennessee, who had completed or were nearing completion of a minimum of 60 semester hours …