Digital Commons Network^™

Renegotiation Based Dynamic Bandwidth Allocation For Selfsimilar Vbr Traffic, Zafer Sahinoglu

Dissertations

The provision of QoS to applications traffic depends heavily on how different traffic types are categorized and classified, and how the prioritization of these applications are managed. Bandwidth is the most scarce network resource. Therefore, there is a need for a method or system that distributes an available bandwidth in a network among different applications in such a way that each class or type of traffic receives their constraint QoS requirements.

In this dissertation, a new renegotiation based dynamic resource allocation method for variable bit rate (VBR) traffic is presented. First, pros and cons of available off-line methods that are …

Modeling Hydrogen Diffusion For Solar Cell Passivation And Process Optimization, Yi Zhang

Dissertations

A diffusion model for hydrogen (H) in crystalline silicon was established which takes into account the charged state conversion, junction field, mobile traps, and complex formation and dissociation at dopant and trap sites. Carrier exchange among the various charged species is a "fast" process compared to the diffusion process. A numerical method was developed to solve the densities of various charged species from the Poisson's equation that involves shallow-level dopants and one "negative U" impurity, e.g., H. Time domain implicit method was adopted in finite difference scheme to solve the fully coupled equations.

Limiting versions of the model were applied …

Elementary, Pressure Dependent Model For Combustion Of C1, C2 And Nitrogen Containing Hydrocarbons : Operation Of A Pilot Scale Incinerator And Model Comparison, Chad Sheng

Dissertations

A 140000 BTU/hr pilot scale incinerator has been constructed, tested and run; and an online sampling train capable of taking in situ data has been established. The continuous on-line analytical instruments include a CO analyzer, an NO/NOx analyzer and an 02 analyzer. In addition, two gas chromatographs with flame ionization detector are used to determine CH4, C2H2 + C2H4 and total hydrocarbon concentrations. Typical operating conditions are at an average 02 concentration of 6 - 8 %. The NO concentration ranged from 100 - 200 ppm. Approximately I ppm of CH.4 is also present at steady state operations.

The kinetic …

An Examination Of The Perceived Need And Recommended Competencies For A Secondary School Principal Internship Program In The Seventh-Day Adventist Educational System, Robert L. Caskey

Dissertations

Purpose. The of this study was to examine the perceived need for, the recommended competencies of, and the delivery systems suggested, for a secondary school principal internship program in the Seventh-day Adventist educational system.

This study evolved from the belief that the significant turnover of principals represents a challenge for Adventist education. Because of this, the supply of qualified and experienced candidates is not available in sufficient numbers to meet the current personnel needs for secondary school administrators.

The review of related literature traced the history of principal internship training in the public school system from the early 1800s to …

The Relationships Between Attitude, Motivation, Anxiety, And Proficiency In English As A Second Language Of First-Year University Students In Puerto Rico, Carmen Mercedes Cortés

Dissertations

Purpose of the study. The purpose of this study was to determine the attitudes, motivation, and anxiety levels of first-year university students toward the learning and use of English as a second language. The study also examined the nature of the relationships between attitudes, motivation and anxiety, and English proficiency asmeasured by the College Entrance Examination Board.

Method. A Spanish version of The Attitudes/Motivation Test Battery (Gardner, 1985a), "Espejo de Actitudes: Aprendizaje del Inglés como Segundo Idioma en Puerto Rico," was administered to first-year college students at the University of Puerto Rico, Mayagüez Campus. These students came from various …

An Autobiographical Study Of My Beliefs, Attributes, And Practices As An Instructional Support Consultant, Jennifer Wilcox Dove

Dissertations

Problem . People ask what I do as an instructional support consultant. Over time, I have created my own approach to instructional support. This study uncovers the beliefs and attributes that drive my practices as an instructional support consultant, as well as those that comprise my model of instructional support.

Method . Using a narrative autobiographical approach, I analyzed early experiences that provided a foundation for beliefs I have about teaching and learning. With the help of close colleagues, I analyzed my current beliefs,attributes, and practices. I wrote stories using my journals and conversations I had with close colleagues. I …

A Descriptive Case Study : The Implementation Of A Field-Based Master's Program, Jeanne Renita Grant

Dissertations

Purpose of study. This study focuses on the implementation of the Field-based Master's Program at Midwestern Christian University. The three-step Adoption Change Model (Fullan, 1991) guided me through this innovation: (1) adoption, (2) implementation, and (3) institutionalization of the program. This 2-year study describes the program's adoption and implementation stages. Institutionalization was not included as it takes 3-10 years to occur. Three research questions guided this study.

Research questions. (1) What did the teacher training in the uses of processes look like during the initial summer session of the Field-based Master's Program? (2) What did the transfer of training …

An Inquiry Of Governance Training, Perceptions Of Board Members' Qualifications, And Board Assessments Of Day Academies In The Southern Union Conference Of Seventh-Day Adventists, Nathaniel George Higgs

Dissertations

Purpose of Study. The purpose of the study was to investigate the school boards of non-boarding secondary schools in the Southern Union regarding their governance training programs, the perceptions of the board members regarding their qualifications, and the assessments of the school boards for their effectiveness.

Methodology. This study used both qualitative and quantitative approaches to collect data. Five board members and school officials were interviewed. Quantitative data were collected by a questionnaire developed by the researcher. The questionnaires were completed by 109 board members. The population consisted of all willing board members present at a scheduled board meeting. Participants …

Learning And Study Strategies As They Relate To Success In An Open-Entry/Open-Exit College Developmental Reading Course, Ginna A. Wenger

Dissertations

This study examines whether student interviews, students' responses on the Learning and Study Styles Inventory (LASSI), or both, could be useful for sorting students who are likely to succeed from those students who are less likely to succeed in an open-entry/open-exit college reading skills course at a small, rural Michigan community college.

The study combined qualitative data in the form of student interviews and quantitative data that consisted of LASSI scores from 41 students. The qualitative part of the study employed a constant comparative method to analyze data from five semi-structured interviews.The quantitative part of the study computed Pearson r …

Means And Ends Of The Andrews University Leadership Program: A Study Of Its Critical Components And Outcomes As They Relate To The Mission Statement, José A. Alaby

Dissertations

Problem. The history of education shows tensions between its means and ends. Tensions became more apparent in contemporary Christian educational institutions. The Leadership Program (LP) of Andrews University was developed as an alternative and innovative means of delivering graduate education with a defined mission. It is job-embedded-theory and practice are united in the participants' workplaces, where they show their competency in 20 areas. It stresses the importance of the individuality of the participant in the development of a teaching/learning community. Yet, the dialectical relationship of the LP's ends and means has not been systematically studied in light of its …

Student Perception Of The Attributes Of Peer Mediators: Implications For Program Improvement, Michelle Maree Bell

Dissertations

Problem. Limited research has been done regarding the magnitude of the attributes of peer mediators and its impact on elementary students. The purpose of this study was to examine fourth- through sixth-grade students' perception of the attributes of peer mediators at four rural elementary schools located in Pinconning, Michigan.

Method. This study examined the fourth- through sixth-grade students' perception of the attributes of peer mediators using a qualitative approach. The data collection procedures included using a purposive sample of 24 peer mediators in focus groups, as well as 74 peacemakers and 79 disputants who participated in a questionnaire. Questions …

A Legal History Of The Job Corps, Joseph E. Blackett

Dissertations

Purpose. The purpose of this dissertation was to construct the legal history of the Job Corps. I focus on five basic questions that guide the study: (1) What were the statutes that created the Job Corps? (2) What was the mission of the Job Corps? (3) How did the Job Corps change over time? (4) What effect did legal challenges have on the Job Corps? and (5) What changes were brought about by recent legislation?

Method. This study involved three basic activities: review of available sources of data to secure information relevant to the five focus questions in the purpose …

The Development Of The Concept Of Salvation In Lutheran And Seventh-Day Adventist Parochial, Secondary-School Students, Megan G. Brown

Dissertations

Problem. This study took an initial look at the development of the concept of salvation in Lutheran parochial school adolescents, comparing them with Seventh-day Adventist (SDA) parochial school adolescents. This was the first study to compare denominations using the Salvation Concept Interview (SCI).

Method. This study was descriptive and comparative. The SCI was used to interview 16 Lutherans and 21 SDAs ages 15 to 18. Subjects also completed a religious activities survey and a drawing. Parents completed a survey of demographic data and personal and family religious activities. Data were analyzed qualitatively and quantitatively.

Results. The concept …

The Psychosocial Determinants Of Middle- And High-School Violence: An Investigation Of The Perceptions Of Parents Of Children Suspended For Committing Violent Acts At School, Beverly Cameron

Dissertations

Problem. This study investigated parents' perceptions of the psychosocial determinants of middle- and high-school violence.

Method. Phase Four of the Predisposing, Reinforcing, and Enabling Constructs in Educational Diagnosis and Evaluation (PRECEDE) model, developed by Lawrence Green, was utilized to examine the perceptions of parents regarding the psychosocial determinants of middle- and high-school violence. Respondents were 191 parents whose children were suspended for school violence. One-way ANOVAs were used to analyze the influence ofgender, age, education, family structure, and income on school violence.

Results. Parents believed their children would solve problems using nonviolent means but they responded in a violent manner …

A Theoretical Proposal For Reaching Irreligious Czech People Through A Mission Revitalization Movement, Petr Činčala

Dissertations

The main goal of this study was to develop a theory of missionary outreach to unchurched Czech people which is biblically informed and culturally relevant. The theoretical proposal for a plausible model of churching in the Czech Republic builds on basic theological, philosophical, and conceptual assumptions (chapter 2), a societal analysis of the problem of Czech churching (chapter 3), and a review of the issues relating to the situation of existing churches and religious movements.

Based on Wallace’s theory of revitalization movements a model is developed for starting a missionary movement that aims at reaching today’s unchurched and seemingly irreligious …

A Rhetorical Analysis Of Theodore Hesburgh's Fund-Raising Speeches For The University Of Notre Dame, Peggie Mathaba Ncube

Dissertations

Problem Statement. Literature reveals that college or university presidents play a key role in raising funds for their institutions. These roles are well documented, and yet many presidents face challenges in raising adequate funds for their institutions. Success stories of some university presidents are recorded, but no research has studied their rhetoric in raising funds in an attempt to uncover their formula for success. One such president is Theodore Hesburgh of the University of Notre Dame.

Methodology. This study assumes a rhetorical design, specifically the Burkean dramatistic approach to analyze Theodore Hesburgh's fund-raising speeches to the alumni of the …

The Relationship Between Spiritual Belief, Life Attitude, And Mental Health Among Physical Fitness Participants In Northern Indiana, Sharon K. Sacks

Dissertations

Problem. The purpose of this study is to explore spiritual beliefs as defined by an interconnectedness with self and others, generated from a relationship with a higher power, and consider its impact on attitude toward life and mental health.

Method. This study employed the survey research method to collect data investigating the relationships between spiritual beliefs, attitude toward life, and mental health. A battery of three instruments was selected for this study. The Royal Free Questionnaire on Beliefs and Experiences, developed by King, Speck, and Thomas (1994), was used for measuring spiritual beliefs. The Optimism and Pessimism Questionnaire provided a …

The Relationship Between Demographic And Attitudinal Characteristics Of Primary-School Teachers And Implementation Of The Continuous Assessment Program In Swaziland, Hibajene Monga Shandomo

Dissertations

Problem. The purposes of this study were to determine the extent to which primary school teachers were implementing the Continuous Assessment Program (CAP) and to examine personal and institutional factors that may be related to the implementation of the program.

Method. A questionnaire designed to measure degree of implementation and attitude toward the Continuous Assessment Program was administered to a stratified random sample of 600 Grade 1 to Grade 7 teachers from 54 schools. Personnel from the National Curriculum Center (NCC) delivered and collected the questionnaires from each school. Completed questionnaires were then forwarded to the researcher. Data were coded …

Differences Between Undergraduate And Graduate Students In Self-Concept And Depression, Ann L. Woolley

Dissertations

Problem.

Students have an opportunity for personal growth as they learn about themselves and the world around them. However, their levels of self-concept and depression can influence how they view' themselves, their relationships, and their world. This research compared undergraduate and graduate students with respect to their levels of self-concept and depression.

Method

A quantitative research design was used for an ex post facto study of 239 students from Andrews University and Western Michigan University. They completed the Demographic Questionnaire, the Tennessee Self-Concept Scale: Second Edition (TSCS:2), and the Beck Depression Inventory-II (BDI-II).

Results

Using 13 as the B D …

Veteran Teacher Perceptions Of The Grossmont Model Of Peer Assistance And Review. Is It A Viable Alternative To Traditional Evaluation?, Edwin L. Basilio Edd

Dissertations

This study looked at factors that influenced veteran teacher perceptions of the newly implemented Peer Assistance and Review (PAR) program in the Grossmont Union High School District. More specifically, the study explored (1) reasons why teachers with at least five years of successful teaching experience voluntarily chose to forfeit their regularly scheduled traditional evaluation and substitute it with a peer review, (2) factors that contributed to positive perceptions of the PAR program, (3) factors that contributed to negative perceptions of the PAR program, and (4) perceived differences between the traditional and PAR methods of teacher evaluation. This study incorporated multiple …

Heritage College: Partnership Leadership As Catalyst To A Multicultural Learning Community, Mary Ann Joan Elizabeth Kaczmarski Edd

Dissertations

Heritage College, a four-year, fully accredited, independent, nonprofit college located in rural, south central Washington, serves multicultural populations that have been educationally isolated. It was created against tremendous odds in 1981 by a small, diverse group of committed individuals. An initial study of Heritage College, conducted in 1991, yielded such compelling findings in the areas of leadership, mission, and community, among others, that a more rigorous, in-depth research study was called for. This dissertation is the follow-up study. The president of Heritage College states that the College sees itself as a leadership- and team-oriented institution with a distinctive focus on …

The Historical Background, Interconnected Development And Integration Of The Doctrines Of The Sanctuary, The Sabbath, And Ellen G. White's Role In Sabbatarian Adventism From 1844 To 1849, Merlin D. Burt

Dissertations

The topic . The doctrines of the sanctuary and the Sabbath, along with Ellen White's prophetic role, progressively evolved and integrated during the five years following the October 1844 Millerite time expectation and were the fundamental elements in the formation of the Sabbatarian Adventist movement and ultimately the Seventh-day Adventist Church.

The purpose . The purpose of the study was to situate the interconnected development of the sanctuary, the Sabbath, and Ellen White's prophetic ministry within the ferment of Adventist ideas and events, show the immediate theological climate, and give a connected progression of Bridegroom (or Shut Door) Adventism and …

Factors Influencing Job Satisfaction Of Repatriated Managers, Michael A. Duoto Edd

Dissertations

Turnover due to repatriation is an increasingly costly occurrence for multinational corporations. Understanding why repatriates decide to leave their companies upon being called back from abroad may help to devise ways in which organizations can mitigate such turnover and reduce cost in hiring and training new personnel. To that end, this study examines the impact of training and orientation programs on the job satisfaction of repatriated managers. In general the study looks at whether or not training, orientation, and family support programs have an impact on the job satisfaction of repatriated managers. The study puts forward the hypothesis that training …

The Development Of The Tavistock And Tavistock-Inspired Group Relations Movement In Great Britain And The United States: A Comparative And Historical Perspective, Amy L. Fraher Edd

Dissertations

In order to gain a deeper understanding of authority, people must analyze human behavior in groups. To study these behaviors, a group relations movement was spawned approximately 60 years ago and has influenced people's thinking about leadership and authority in groups and organizations ever since. This study analyzed primary and secondary historical sources, including data from extended videotaped interviews the researcher conducted with thirteen group relations experts throughout the United States and Great Britain, as a way to reconstruct the history of a significant part of the group relations movement. These videotaped interviews are available for viewing. Specifically, the study …

Aircrew Adaptive Decision Making: A Cross-Case Analysis, Constance Ann Gillan Edd

Dissertations

Although the accident rate for military aviation has declined significantly from earlier decades, during the 1990's it reached a plateau. Human error in the cockpit still accounts for over 80% of the aircraft mishaps resulting in loss of life or over one million dollars in damage. Decision error has been a contributing factor for approximately 60% of these mishaps. The purpose of this research was to investigate aircrew process performance variables as predictors of decision-making outcomes. This study was modeled on elements of previous research in naturalistic decision making. Data were collected for cross-case analysis of the role experience plays …

Supervisor Leadership Style And Counselors' Burnout: A Comparative Study Of High School Counselors And Rehabilitation Counselors, David J. Lubofsky Edd

Dissertations

This quantitative study investigated whether the perceived leadership style of high school principals and rehabilitation supervisors had an effect on the burnout of high school and rehabilitation counselors. Demographic and work related characteristics were also assessed to determine if these factors affected burnout rates. Survey data from the three separate scales of the Maslach Burnout Inventory (MBI), and the Multifactor Leadership Questionnaire (MLQ) were combined with demographic data to estimate a series of three regression models. The models focused on the effects of demographic, work-related and leadership variables on counselor burnout. Data were collected from 96 high school counselors and …

Perception And Reality: An Empirical Assessment Of Navy Leadership Styles And Business Process Reengineering Outcomes, Andre D. Murphy Edd

Dissertations

Seeking to improve mission readiness and organizational effectiveness while reducing expenditures, the Department of the Navy (DoN) eliminated and reconstructed many of its business practices. Reconstruction of the military's business practices was accomplished through business process reengineering (BPR). Business process reengineering is a change strategy that provides organizations the opportunity to do “more with less.” Although doing more with less is not a new concept in military settings, the organizational change construct of business process reengineering is new. Most organizations in the private sector that attempt reengineering do not attain their intended results; the literature reveals that 50–70% of organizations …

Modeling The Effects Of Financial Aid On Student Enrollment Decisions: A Quantitative Case Study Of A Private Catholic University, Linda Siefert Edd

Dissertations

Over the last two decades, many institutions of higher education have experienced admissions-related problems due to fluctuations in student enrollment and the increasing need for institutional financial aid. Because of this, administrators need tools that can help them modify policy as the market changes. The purpose of this research was to develop a tool for a private, more selective institution that would answer the following questions: (1) what is the probability of enrollment for each admitted student, and (2) how would changes in the financial aid package affect this probability? The model in this research was based on both economic …

A Model Health-Related Elementary Physical Education Program For Saipan: Teachers' Knowledge, Attitudes, And Practices, Kurt C. Barnes Edd

Dissertations

The purpose of this study was to determine if there was significant differences in changes of knowledge, attitudes, and practices between elementary school teachers who took part in an in-service physical education training program and those who did not take part. The in-service training program utilized a model health-related physical education program. The setting for the study was a school district on Saipan whose teachers were required to teach physical education. Teachers in five of nine public elementary schools were placed in the in-service training program. A questionnaire assessing knowledge, attitudes, and practices, was administrated as a pre- and post-test. …

A Case Analysis Of Three Middle-School Boys Who Have Down Syndrome And Have Been In Regular Education Classes Since Preschool, Eileen Frances Luddy

Dissertations

This study investigated the experiences of three middle-school boys who have Down syndrome and have always attended regular education classes.

Despite the existence of policies and initiatives in support of inclusive education, research on the implementation of inclusive practices in middle schools is sparse.

This study is organized in nine chapters. A review of literature revealed that significant research conducted during the past decade supports the practice of including students with disabilities in regular education and the benefits of inclusion outweigh the benefits of separate instruction.

A case study approach investigated the phenomenon covering contextual conditions surrounding the experiences of …