Digital Commons Network^™

Common Moment Sets Of Complementary Graphs, Hang Chen

Dissertations

Two sequences of nonnegative integers have the k^th common moment if they have equal sums of k^th powers. We intend to study common moment sets of the degree sequences of complementary graphs, and similarly, of the score sequences of complementary tournaments.

In Chapter I, we first study common moment sets of arbitrary sequences of nonnegative integers. Some basic concepts are introduced. The relations between characteristic functions and initial common moments are discovered. We extend Hua’s discussion of the Tarry-Escott problem. We conclude that any finite subset of nonnegative integers can be a common moment set of some sequences, and conversely, …

The Effect Of Associative Distance On The Formation Of Transitive Relations, Robert G. Brown Jr.

Dissertations

Three children, aged eight to eleven years, were taught a series of conditional discriminations using two classes of 26 abstract visual stimuli. The conditional relations were ordered such that the correct comparison stimuli of one relation served as the sample stimuli for the next relation. This allowed for the formation of a series of derived relations (both transitive and equivalence) that differed in terms of the number of intervening nodes. At regular intervals, the subjects' performances on the different transitive relations were tested using unreinforced probe trials.

All three subjects made virtually no errors on transitive relations containing up to …

Career Dynamics Of Counselor Trainee Stereotyping: Bias Toward Physical Ability, Social Class, Gender, And Race Of Clients, J. Stephen Neynaber

Dissertations

Three different attitude surveys, developed by the researcher, were administered to counselor trainees (N =200) at Western Michigan University: The Attitudes of Counselor Trainees (A.C.T.) Survey, Multicultural Beliefs Inhibiting Appropriate Support (M-B.I.A.S.) Survey, and Career Beliefs Inhibiting Appropriate Support (CB. LA.S.) Survey. A 24-item demographics questionnaire was administered to trainees (n =124) who completed the A.C.T. Survey. A six-items Likert scale produced significant effect (p < .05) on counselor trainees' ratings of clients' potential for career success: (1) Awareness of Personal Strengths and Weaknesses, (2) Goal Orientation, (3) Self-esteem, (4) Energy Level, (5) Participation in Extracurricular Activities, and (6) Level of Honesty.

Five client demographic oppression variables, which the review of literature documented to evince negative bias from counselors, were included in 16 hypothetical client scenarios: physical handicaps (viz., hearing impairment and paraplegia), female sex, African-Americans, low …

Perceived Parental Care And Protection As Correlates Of Chronic Pain In Adults, Daniel L. Walberer

Dissertations

This research was undertaken to explore the significance of care and protection as correlates related to the experience of chronic pain in adults. Chronic pain may affect as many as ten percent of the American population and cost up to a billion dollars a year in treatment costs. It was hypothesized that certain parenting styles are related to the experience of chronic pain in adults.

Thirty male and female patients referred to The Center for Health Psychology and Medicine in Kalamazoo, Michigan who were diagnosed as experiencing chronic pain by a referring physician participated in this study. Each participant underwent …

The Extent To Which The Career Guidance And Counseling Component Is Addressed In The Administration Of Tech Prep Programs, Linda Joan Kwasny

Dissertations

This study examined the career guidance and counseling component of tech prep projects that were being planned and implemented in Michigan during the 1990-91 school year. A survey was conducted of all eleven consortia operating funded tech prep projects to determine the involvement of secondary and post-secondary guidance professionals in tech prep planning, the extent of articulation of guidance services for regular and special populations tech prep students, and the nature and extent of the career guidance and counseling programs that were being planned for regular and special populations students.

The findings from this study indicate that for secondary and …

Self-Efficacy And Academic Success Of Integrated And Segregated Emotionally Impaired Adolescents, Jerry William Davisson

Dissertations

In this study, levels of self-efficacy and levels of academic success of emotionally impaired adolescents in both integrated and segregated settings were analyzed. The data were analyzed to determine if placement setting (integrated or segregated) impact: self-efficiency levels, academic success levels, and the relationship between self-efficiency and academic success.

Subjects were selected from two junior high schools within Macomb County, Michigan. The integrated junior high educated emotionally impaired students with nonimpaired students and the segregated junior high educated emotionally impaired students with only other emotionally impaired students. Eleven students from the integrated junior high and 28 students from the segregated …

A Descriptive Study Of The Development And Validation Of A Curriculum Development Process For Occupational Therapy In An Institution Of Higher Education, Alfred G. Bracciano

Dissertations

This was a descriptive study of a curriculum development process for occupational therapy at Saginaw Valley State University in Michigan. A four-stage process was designed and documented. These stages included: (1) feasibility , (2) curriculum design and development, (3) review and evaluation-validation for each component, and (4 ) implementation stage.

The study was conducted to develop a curriculum development process that was academically appropriate for occupational therapy programs for institutions of higher education and which met identified needs as set forth by the feasibility study and the American Occupational Therapy Association (AOTA), Division of Education. Further, the study undertook to …

Maximal And Maximum Independent Sets In Graphs, Jiuqiang Liu

Dissertations

A maximal independent set of a graph G is an independent set which is not contained properly in any other independent set of G. An independent set is called maximum if it is of largest cardinality. Denote i(G) to be the number of maximal independent sets of G. These special sets and the parameter i(G) have interested many researchers leading to a number of properties and results. One of these is the determination of the maximum number of maximal independent sets among all graphs of order n, and the external graphs. In this investigation,we develop new properties for …

Improving Service Quality Through Self-Monitoring, John Patrick Mcdonough Iii

Dissertations

A multiple-baseline across-restaurants design was used to assess the effectiveness of a quality guarantee (performance checklist) on the quality of food served at two carryout pizza restaurants in a Midwestern city of approximately 100,000 people. The research consisted of having the quality of food monitored by research assistants who served as mystery shoppers trained in the quality standards of the restaurants. Quality was monitored during baseline, when normal operating procedures were in effect at the restaurant, and during intervention, when employees who delivered food to customers were required to sign a quality guarantee. In one intervention phase, employees checked off …

Motivational Effects On A Psychometric Measure Of Prefrontal Brain Functioning In Patients With Chronic Schizophrenia And Related Disorders, Paul C. Smith

Dissertations

This study compared multiple sequential performances on a computerized version of the Wisconsin Card Sorting Test (Grant & Berg, 1948; Harris, 1986) by adult men receiving institutional inpatient treatment for chronic schizophrenia and related disorders. Participants were exposed to differential test conditions of minimal post-session non-contingent token reinforcement (baseline phases) and enhanced intra-session performance-contingent token reinforcement (experimental phase). Each major participant resided at the same continuing treatment unit at Kalamazoo Regional Psychiatric Hospital receiving similar social therapies but idiosyncratic psychotropic medication regimens, changes in which were tracked in relation to test performances. A simple single-subject reversal design was employed with …

The Effectiveness Of A Job Search Skills Training Program On The Job Readiness Of Undergraduate Malaysian Students Enrolled At Western Michigan University, Ibrahim Bin Hashim

Dissertations

The relevant body of research and literature applicable to this area emphasized the importance of job readiness among college students. Job seeking skills program can be rendered more effective and efficient by using a combination of several behavioral procedures.

The primary purpose of the study was to examine the effectiveness of a job search skills training program on the job readiness of the undergraduate sponsored Malaysian students enrolled at Western Michigan University. Specifically the problem centered on the ability of the treatment program to help Malaysian students to become clearer and to increase their understanding about the importance of self-awareness, …

Investigation Of Waterjet-Workpiece Interaction, Hung-Yuan Li

Dissertations

The objective of this research is to develop new knowledge related to the fundamental physical phenomena of waterjet machining of ductile materials, and to use this knowledge to construct a numerical analysis model. The resulting knowledge will enable enhancement of waterjet cutting efficiency.

Experimental study of fundamental mechanisms and the acquisition of the data detailing micro and macro scale phenomena which occur during the machining process is carried out. It is shown that the material damage mechanism associated with waterjet machining is erosion cavitation which initiates ultrasonic stress wave propagation in the workpiece. Fatigue, an important element in producing material …

Development Of Prediction Technique For The Geometry Of The Abrasive Waterjet Generated Kerf, Yichung Chung

Dissertations

This study is concerned with the development of a practical and accurate technique for off-line determination of the variables characterizing the macro-geometry of the kerf generated in the course of abrasive waterjet (AWJ) machining of ductile materials. The study involved generation and processing of a database relating operational conditions with kerf dimensions. The total number of generated samples exceeded 1500.

A physical model relating the process results with operational conditions was constructed and used for the selection of a statistical technique for analysis of the acquired experimental information. The semiempirical model developed here is based on a simple theoretical model …

Kinetic Studies Of Photo-Initiated Oxidation Of Toxic Organic Pollutants Including The Formation And The Destruction Of Intermediates, Yuan-Shen Li

Dissertations

The photo-initiated oxidation process, using hydrogen peroxide or ozone under ultraviolet radiation, has been proven to be an effective treatment method for toxic organic pollutants in wastewater. Most of the recent kinetic studies of the process were concentrated on the breakdown mechanisms of the pollutant itself. The formation and the destruction of intermediates were seldom investigated. Also the mechanisms and their reaction rate constants of free radical formation and destruction in the O₃/UV or H₂O₂/UV reactor were seldom studied.

The objective of this research is to study the kinetics of photo-initiated oxidation of toxic …

Performance Evaluation Of Spread Spectrum System With Cochannel Interference Through A Nonlinear Channel, Yong H. Kim

Dissertations

This thesis deals with the problem of more than one subscriber transmitting data signals through a common satellite repeater using code division multiplexing to separate the signals. We are concerned with the problem of amplifying two DS spread spectrum signals, both QPSK or BPSK modulated, in a common device in which limiting occurs. One signal is considered the signal we desire to receive, and the other, having the same nominal carrier frequency with a small random offset, is considered to be a cochannel interferer. The case of a cochannel interferer on the uplink and downlink in QPSK signalling and BPSK …

Particle Dynamics Modeling Of Boundary Effects In Granular Couette Flow, Hyeong-Jin Kim

Dissertations

This study provides insights in understanding boundary effects on the flow of dry granular materials composed of identical, smooth, inelastic spheres between parallel, bumpy walls in the absence of gravity. The results of this study are useful in providing a basis upon which developing theories can be modified as well as substantiating previous and current experiments. This in turn has a major importance in many industries which are concerned with handling of particulates, such as coal, mineral processing, powder metallurgy, and agriculture.

The particle dynamics or discrete element method is used to model this flow, thereby providing a means of …

Structural Reliability Using Finite Element Method, Che-Chen Liou

Dissertations

During the last decade, structural reliability theory has been treated in a large number of research papers; therefore, from being a subject only well known by a relatively small number of researchers, it has become an important engineering discipline. From the application point of view, many practical applications have been made successfully.

In this dissertation some important fundamental concepts in statistics and in reliability theory are presented. The concept of failure mode can be defined as: A set of failed elements turn a structure into a mechanism. Usually, a structure has many possible failure modes; therefore, it will be necessary …

A Modified Approach To Flood Prediction In Urban Watersheds, Joseph Ofungwu

Dissertations

The purpose of this dissertation was to develop a better method for dealing with the problems of flood prediction in Urban Watersheds. It has long been realized that urbanization activity such as increased imperviousness, drainage improvements, etc. increases runoff volumes. Therefore, traditional flood prediction methods using the Log Pearson III distribution underestimate flood frequencies when applied to urban watersheds without modification.

In attempt to compensate for the effects of urbanization on streamflow, previous workers usually employed regional analysis techniques involving a number of different watersheds at various degrees of urbanization. Results obtained by this approach leave room for improvement primarily …

Process Technology And Characterization For Field Emission Devices, Jong Min Kim

Dissertations

Vacuum microelectronics is a new research field which applies semiconductor process technology to the fabrication of micron-dimensioned electron devices. Vacuum microelectronics is made possible by advances in microstructures and nanofabrication technology. Vacuum microelectronic devices are further characterized by a wide operating temperature range, nuclear radiation immunity, higher emission current density potential, and lower power consumption than that of thermionic emitters. The low mass of the electron provides a higher carrier mobility than GaAs or any solid state device. These features offer the potentials for wide variety of applications.

In this dissertation. electron field emission structures applicable to a variety of …

Investigation Of Epitaxial Lift-Off Gaas And Langmuir-Blodgett Films For Optoelectronic Device Applications, Divyang M. Shah

Dissertations

Epitaxial lift-off (ELO), a technique of removing an epitaxially grown GaAs layer from its growth substrate by selective etching of an AlAs sacrificial layer, is described for field-effect transistor fabrication independent of the GaAs growth substrate. Metal Semiconductor Field-Effect Transistors (MESFETs) and High Electron Mobility Transistors (HEMTs) fabricated on silicon and sapphire substrates using ELO are investigated. A 0.1 μm gate length depletion mode MESFET made on silicon exhibited a unity current gain frequency f_t = 34 GHz. Excellent device isolation with subpicoampere leakage currents is obtained. A high input impedance amplifier has been implemented on silicon substrate using …

Thermal Desorption And Decomposition Of Hazardous Organic Compound I: Mass Transfer Of Benzene And Chlorobenzene In Soil Matrices Ii: Oxidation And Pyrolysis Of 1,1,1-Trichloroethane In Methane/Oxygen/Argon, Yo-Ping Wu

Dissertations

I: Mass Transfer of Benzene and Chlorobenzene in Soil Matrices

Experimental measurements on several apparatus were used in conjunction with chromatographic theory to study the thermal adsorption and desorption of organic vapors on soil with different particle sizes for analysis mass transfer parameters and heat of adsorption. Benzene (C₆H₆) and chlorobenzene (C₆H₅Cl) were tested on soil with 0.55, 0.46, 0.36, and 0.225 mm average particle sizes. Sample injection volumes for organic compounds were studied to ensure linearity of gas chromatography. Equilibrium constants were strongly dependent on temperature but not on particle size. …

Meta-Analysis On Costing Out Nursing Services, Judith G. Eckhart Dnsc

Dissertations

This descriptive meta-analytic study investigated 73 primary studies on costing out nursing services. A critical review of the literature revealed that findings from the various published and unpublished studies were inconsistent and inconclusive. This meta-analysis integrated the literature to identify the relationships between nursing costs and a second variable. The most frequently reported variables among the primary studies were compared using Pearson r correlations and percentages. The variables of total and direct nursing costs were correlated to the variables of length of stay, direct nursing care hours, hospital costs, and diagnostic related grouping (DRG) reimbursements. Analysis was conducted two ways. …

Leadership In Policy Issue Networks: The New Community College Of Baltimore, Helen H. Bishop Edd

Dissertations

The policy-making process is a complex human endeavor characterized by interactions among leaders and followers who do leadership by placing policy innovations on the political agenda and utilizing their resources to attempt change. If innovative change is accomplished, then the new policy must be implemented at the local level, in ways which may or may not reflect the intentions of those who desired the change, or those who created the new policy. This research focuses on an example of policy making in state government in the area of postsecondary education. The objectives of the study were to determine how coalitions …

Practices In Results-Oriented Hrd: Levels Of Support And Agreement Between Hrd And Upper-Level Managers, Abdulmohsin Al-Luheid

Dissertations

The study surveys the acceptance of, and support for, results-oriented training activities by upper-level managers and HRD managers in representative companies in Southwest Michigan. The study also examined the agreement between the perceptions of upper-level managers (ULM) and HRD managers (HRDM) concerning results-oriented HRD activities.

The study produced a profile of the support for and/or the acceptance of those activities in the selected organizations. This profile includes both the most-recommended and the least-recommended practices as reported by upper-level and HRD managers. Additional analysis looked at levels of support for the activities across, within and among the four types of organizations …

Teacher Induction: An Investigation Of Factors That Affect First-Year Teachers' Attitudes Toward Their Jobs, John G. Longcore

Dissertations

This study compared specific induction-year support variables that might affect the attitudes that first-year teachers have about their jobs. Forty-eight first-year teachers from randomly selected school districts in western Michigan participated by completing the Teacher Attitude Inventory (TAI) as a pretest-posttest measure. Each participant also submitted a professional activity checklist which determined the level of support they experienced. All subjects were then divided into a high, medium, and low support group to locate any differences in attitude among the groups. No differences in attitude toward their job among the groups was found.

The Effect Of Leadership Styles On Hospital Labor Productivity, Anthony R. Tersigni

Dissertations

This research examined hospital management leadership style and its effects on hospital labor productivity . Information derived from this research will be useful in the education and training of future health care executives and in the continuing education of those responsible for the day-to-day operations of general acute hospitals.

The hypothesis that was researched in the study was that high consideration/high structure and high consideration/low structure leadership styles would increase productivity in hospital employees who are in the middle stages of organizational development. This was operationally defined in the alternate hypothesis as a relationship between productivity as measured by the …

Interpersonal Issues Of Dependency In Adult Children From Dysfunctional Relationships, Dennis Michael Beaufait

Dissertations

This study was designed to examine issues of interpersonal behavior among adult children of alcoholics when compared to adult children of non-alcoholics by assessing the functioning level of family of origin relationships. Undergraduate students from a midwestern university were divided into four groups based on their scores on the Children of Alcoholics Screening Test (CAST) by Jones (1981) and the Index of Family Relations (IFR) by Hudson (1982). The sample consisted of 302 subjects between the ages of 18 and 50 who volunteered to participate in a study which examined interpersonal behavior as measured by the Interpersonal Dependency Inventory (IDI). …

Exploring The Self-In-Relation Theory: Women's Idealized Relationships-Of-Choice And Psychological Health, K. Heidi Fishman

Dissertations

The self-in-relation theory (e.g., Kaplan, 1984; Kaplan 6 Klein, 1985; Miller, 1984, 1986, 1988; Surrey, 1985, 198?) asserts that women's development is based on relationships. According to the Stone Center theorists (Kaplan, 1984; Miller, 1988; Stiver, 1986-1989, 1986- 1990; Surrey, 1984), psychopathology in women can stem out of non-growth-fostering relationships which leave women feeling a profound sense of disconnection and loss. Similarly, psychological health develops out of growth fostering relationships. This study investigates the connections between women's relational experiences, their idealized relationships-of-choice, the health of their families-of-origin, and current psychological health.

Thirty-eight women were interviewed and given psychological measurements in …

A Comparison Of Junior High Schools To Middle Schools With Respect To Achievement And Attendance, Darrell Clay

Dissertations

During the past 30 years, the middle school movement has been a comprehensive effort to restructure middle level education. Literally thousands of school districts have chosen to change from junior high schools to middle schools for a variety of reasons. Research to support this massive reorganization of American schools has not been evident. The early research did not provide consistent evidence of improvement for middle school students. Most of this early research was based solely on the grade configuration of the schools being compared rather than the conceptual framework of the school.

The purpose of this study was to compare …

The Reading Connection: A Leadership Initiative Designed To Change The Delivery Of Educational Services To At-Risk Children, Gary Compton

Dissertations

For many young children, the process of learning to read in school is cumbersome and extremely difficult. As a result, remedial or compensatory services are provided to these students. Once these at-risk students are targeted for remedial services, generally through the Chapter 1 program (Elementary and Secondary Education Act, 1965), they receive small group reading instruction from a specifically trained professional teacher. A problem occurs when these children, generally the poorest readers in their class, do not make significant gains when compared to their age-appropriate peers.

In the winter of 1988, a collaborative project between Western Michigan University and the …