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Ternary Ion Exchange In Fixed Beds : Equilibrium And Dynamics, David W. H. Roth

Dissertations

A model was developed to simulate ion exchange within fixed beds for ternary systems. Models of the fluid phase material balance, phase equilibria, and diffusion of ions through the film and within the resin phase incorporated the latest advances in ion exchange theory. The separate model elements were combined after testing into an overall general model. Non-linear regression support programs were developed to estimate equilibrium parameters and resin phase diffusion coefficients.

A computer program was developed to estimate axial dispersion coefficients from experimental data. General correlations derived from literature sources were tested, and axial dispersion terms were included in the …

A History Of The “Hattiesburg American”, Patt Foster Roberson

Dissertations

This dissertation did not include an Abstract.

This dissertation is a study of the history of the Hattiesburg American , a local newspaper in Hattiesburg, Mississippi. It is also a study of the development of local newspapers in the United States.

Holland Area Employer-Sponsored Community Coordinated Child Care: A Case Study, Bonnie Church Piller

Dissertations

This is a report of a case study, in the anthropological tradition of an employer-sponsored community coordinated child care program. The program is located in a midwest community of 20,000. Program start up and functioning is described. Also reported are the responses and rationales of participating companies and the impact of the service on child care in the community. The employer-sponsored child care information and referral consortium, a cost effective employee benefit for corporations, gave the Community Coordinated Child Care agency financial stability. The program provided incentive and staff to train family day care providers and an early childhood education …

A Study Of The Relationship Between High School Graduation Requirements And Student A.C.T. Assessment Scores In Public High Schools In The State Of Michigan, William M. Pritchard

Dissertations

The literature has pointed toward changes in high school curriculum as a contributor to the decline of standardized test scores during the 1960's and 1970's. During the past few years, many schools have increased graduation requirements in various subject areas in an effort to increase learning on the part of students. The purpose of this study was to investigate the effect of the number of years of required study in various subject areas on student achievement.

The population that was studied included all public high schools in the State of Michigan. Two hundred thirty-eight schools were sampled from the population, …

A Study Of The Academic Problems Encountered By Saudi Students At Western Michigan University, Ali Hajjan Mustafa

Dissertations

The purpose of this study was to identify perceptions of Saudi students studying at Western Michigan University (WMU), faculty and administrators at WMU, and academic advisors in the Saudi Arabian Educational Mission in Chicago regarding academic problems encountered by Saudi students enrolled at WMU, and to determine any differences in perceptions of Saudi students regarding their academic problems based on age, marital status, academic level, and length of stay in the United States.

Respondents to this study included 47 Saudi students, 22 faculty, 24 administrators, and 8 academic advisors. The data for this study were obtained by means of a …

Differences In Typology Among Nurses At Different Levels Of Management In Acute Care Institutions As Measured By The Mbti, Catherine Marie Devet

Dissertations

This survey research study explored differences in personality types between staff nurses and nurse managers in acute care institutions (hospitals). The study tested a theory about expected differences which was based on an extensive literature review of nursing administration and type theory as developed by Jung and measured by the Myers-Briggs Type Indicator (MBTI).

Eight acute care institutions were selected randomly from hospitals listed by the American Hospital Association (1983) as having 400-600 beds and located in the state of Michigan but outside of Wayne County. Of the eight hospitals approached, permission to conduct the study was obtained in five. …

Training Behavioral Assessment Interviewers: A Comparison Of Two Procedures, Raymond G. Miltenberger

Dissertations

Two procedures were used to teach behavioral assessment interviewing skills; a training manual and a one-to-one training procedure consisting of instructions, modeling, rehearsal and feedback. Four subjects, two graduate students and two seniors, were trained with each procedure. Interviewing skills were recorded in simulated assessment interviews conducted by each subject across baseline and treatment conditions. Each training procedure was evaluated in a multiple baseline across subjects design. The results showed that both procedures were equally effective for training behavioral interviewing skills, with all subjects reaching a level of 90-100% correct responding. Finally, a group of experts in behavior analysis rated …

Scientific-Technological Dependency And Uneven Development: The Case Of Iran, Abdullah Mehdipour

Dissertations

With the decline of various forms of military and economic power of the more industrialized countries (MICs) as the primary control structure for maintaining the dominance/dependence relationships with the less industrialized countries (LICs) in the international political and economic system, science and technology has emerged as a significant means for sustaining international status quo.

The problem of the study was stated in two questions. First, why and how Iran (an LIC) became dependent on more industrialized countries' science and technology. Second, what effect(s) did Iran's scientific-technological dependency have on its social structure, and what is the more appropriate strategy for …

Beyond Contingency Theory: Environment, Structure, And Administrator's Coping Ability In The Public Sector, Shyu-Tu Lee

Dissertations

In the last two decades, organizational-environment contingency theory has attracted much attention. A great deal of research has been done on investigating the impact of environment on organizations, suggesting the appropriate design of organizational structure. In recent years, organizational theorists have moved to investigate proactive approaches to organizational environments.

Most empirical studies, however, have been conducted in the private sector. In order to transfer the knowledge to the public sector, it is necessary to investigate whether public organizations are also subjected to environmental influence and how public administrators interact with the environment.

This study investigated the following three questions: (1) …

The Effects Of Symbolic Modeling And Parent Training On Noncompliance In Hyperactive Children, George Kahle Henry

Dissertations

This study examined the interactions of mothers with their hyperactive children during a structured-task period to determine the effects of a symbolic modeling and parent training intervention on child noncompliance. Analysis of videotaped sequences across all phases of the study indicated that symbolic modeling was not a very effective technique for improving compliance in hyperactive children. Phase one of parent training, which taught mothers appropriate attending, ignoring, and rewarding behaviors, was more effective than symbolic modeling. Phase two of parent training, which introduced a time-out contingency for noncompliance, was the most effective intervention as it resulted in significant reductions in …

Reducing Emg And Cardiovascular Reactivity With Cue-Controlled Relaxation, Janel Kay Harris

Dissertations

The present study compared cue-controlled relaxation (CCR) to progressive muscle relaxation (PMR) as possible methods of reducing reactivity to active stressors (math and anagram tasks). The CCR training entailed practicing relaxation during exposure to the active stressors, while the PMR training did not. Ten cardiac rehabilitation patients served in an experiment which used a repeated-measures ANOVA to assess changes in frontal EMG, skin conductance level (SCL), systolic (SBP) and diastolic (DBP) blood pressure, and pulse-rate reactivity across three experimental conditions. These were: baseline, progressive muscle relaxation, and cue-controlled relaxation. The results indicated that CCR led to reduced EMG, SBP, and …

The Effect Of Medicaid Billing On Service To Developmentally Disabled Adults, Kambiz Alavi

Dissertations

This study provides a detailed analysis of the daily service delivery records before and after the introduction of a Medicaid Billing Form at a day-activity center for developmentally disabled adults. The form required therapists to record daily service delivery (in 15-minute units) to Medicaid eligible clients. There were 38 clients, 23 Medicaid and 15 non-Medicaid, and four therapists. The data showed, for three of the four therapists, a clear and large increase in reported service delivery to Medicaid clients and a smaller increase to non-Medicaid clients. Six months after the introduction of the Medicaid Billing Form the therapists were required …

The Development And Evaluation Of An Educational Therapeutic Group Procedure To Assist Preadolescent Children To Process Parental Divorce, Donna K. Prins

Dissertations

The purpose of this study was to develop and evaluate an educational therapeutic group procedure to assist preadolescent children to understand and assimilate the process of parental divorce.

The group procedure is a short term therapeutic approach which focused on general problems experienced by children processing parental divorce. A prestructured format was developed, and the entire procedure was designed to occur in a small group setting.

The major goal of the study, developing the group procedure Things Have Changed At My House, was accomplished. The complete text of the procedure is contained in the appendix of the dissertation.

Both process …

The Rorschach As A Diagnostic Aid In Differentiating The Bipolar Affective Disorder From The Schizophrenic Disorder, Stephen James Newman

Dissertations

Misdiagnosis of the bipolar affective disorder (manic type) has profound consequences Including prescription of counterproductive medication, non-aggressive treatment approaches, extended hospitalizations, and poor prognosis (Fleve, 1975). Misdiagnosis Is extensive and has resulted from the tendency to over diagnose schizophrenia (Fleve, 1975), the tendency to equate psychotic symptomatology with schizophrenia (Garvey & Tuason, 1980), the similarity of psychotic symptomatology of the bipolar affective and schizophrenic disorders (American Psychiatric Association, 1980), past confusion regarding diagnostic criteria of the bipolar affective disorder (Spltzer, Williams, & Wynne, 1983), and the absence of psychometric tools to differentiate the bipolar affective and schizophrenic disorders.

The purposes …

An Investigation Into The Effects Of Learner Control Options On Patterns Of Learning Strategies, Debra Small Nelson

Dissertations

A body of literature termed learner control research examined the efficacy of allowing learners' control over the type, rate, amount, and sequence of content to be covered in an instructional program. The growing impact of computer based education has enhanced the possibility of providing learners greater autonomy in the learning process. The purpose of this study was to investigate the effects of providing learner control options in a computer-assisted instruction (CAI) microcomputer program on patterns of learning strategies and content mastery.

The sample consisted of 98 adult learners involved in the fields of general or special education in the State …

Diagnosis Of Dyslexia: The Utility Of The Boder Test Of Reading-Spelling Patterns, A Representative Case Study Approach, Donna Montei

Dissertations

The first purpose of the dissertation was to study the relationship between Boder test diagnosis (dysphonetic dyslexia) and hemisphere arousal with a representative subject. The relationship between standard methods of diagnosis and Boder diagnosis was studied with five additional subjects. The "dysphonetic" subject was measured with electroencephalogram biofeedback equipment and the Wechsler Intelligence Scale for Children-Revised (WISC-R) and demonstrated higher arousal in the left hemisphere than the right hemisphere. Four of the five other subjects were diagnosed differently by the Boder test from diagnoses obtained through standard psychological test batteries. The results suggest that the Boder typology constructs may be …

The Feature-Value Effect In Children; An Attempt To Replicate And Further Experimentation, Kathleen Wright

Dissertations

In the "feature-value effect" faster acquisition occurs when a distinguishing feature is placed on the correct stimulus (S+) during discrimination training than when the distinguishing feature is placed on the incorrect stimulus (S-). The former is a "feature positive" discrimination task, whereas the latter is a "feature negative" discrimination task. The feature-value effect only occurs when the discrimination involves stimuli that are identical except for one distinguishing feature. The effect has been obtained in a number of nonhuman species as well as in children and adult humans. Experiments 1 and 2 failed to replicate the findings of previous experiments with …

Personality Predictors Of Academic Success In Underachieving First Year College Students, Carolyn Wilson-Garrison

Dissertations

In this study, the role of nonintellective variables as predictors of academic success in underachieving first year college students was explored. Traditional predictors of college grades, high school grade point average and standardized scores on the American College Testing examination (ACT), were also examined.

The purpose of this study was to assess whether college grades at the end of the first year would differ according to underachieving students' personality styles, expressed concerns, and behavioral correlates thereby offering the possibility that such nonintellective factors may be useful in the prediction of grades.

The sample was a randomly selected group of eighty-seven …

An Investigation Of The Relationship Between Premorbid Personality And Depression, William Essenburg

Dissertations

Depression is a significant mental health problem and has been studied extensively for decades. However, there is still disagreement among clinicians and researchers regarding the causes and psychodynamic processes of depression.

The purpose of this study was to investigate the relationship between premorbid personality and depression. Using the Millon Clinical Multiaxial Inventory (MCMI) and the Beck Depression Inventory, personality and depression measures were obtained from a sample of adult psychiatric inpatients during acute and remission phases of their hospitalization.

Results obtained indicated that the MCMI scales intended to measure premorbid personality during periods of acute psychiatric illness were sensitive to …

The Effects Of Reward And Reinforcement On Intrinsic Interest, Alyce Muzette Dickinson

Dissertations

Under certain circumstances, rewarding individuals for performing a task that they enjoy may decrease their subsequent interest in that activity when rewards are no longer available. Decreased task interest is not, however, an inevitable outcome of reward and the subsequent termination of reward. This study investigated one variable that may influence whether task interest will increase or decrease following reward termination: the degree to which the reward is reinforcing. The study also examined how long post-reward performance changes persisted when they occurred.

A multiple-trial, within-subject comparison design was employed in which three reward phases were alternated with post-reward phases. Two …

The Relationship Between Nonsupervisory Employees' Self-Assessment Of Their Supervisory Skills And The Amount Of Satisfaction They Believe They Would Receive From Being A Supervisor, Arthur W. Hoffman

Dissertations

This descriptive study investigated the relationship between perceived supervisory effectiveness (competence) and perceived supervisory satisfaction for nonsupervisory professional-technical employees who may aspire to supervisory positions. The study participants are employees of a large industrial company engaged in the engineering and manufacturing of diversified products for the automotive industry. Specifically, the study attempted to (a) collect employee selfassessment data regarding the employee's perceived supervisory job effectiveness and perceived job satisfaction, (b) determine whether a relationship existed between perceived supervisory effectiveness and satisfaction, and (c) determine if the employee's age and educational level were influencing factors.

In order to investigate the relationship …

To Establish The Degree Of Interest For New Technical Instructional Programs At Taif Junior College, Saudi Arabia, Ahmed Said Sulayman Derbas

Dissertations

At the present time, junior colleges do not have technical programs that would provide trained Saudis to assume responsibility in technical and middle management fields. The purpose of this study was to establish the degree of interest for new technical instructional programs at Taif Junior College to meet those needs.

The population of this study consisted of all students attending the college for the academic school year 1984-85. A sample of 255 was selected by using a simple random method. Data were collected utilizing a two-section questionnaire which has been developed by the researcher. The first section focused on demographic …

The Relationship Between Managerial Experience And Conflict Management Styles Of Men And Of Women In Community College Administration, Betty Pritchard

Dissertations

Conflict management is a vital component of the manager's function. It is also assumed that men and women manage conflict differently, and therefore perform differently as managers. This assumption, along with many other sex-role stereotypes, has restricted the entrance of women into management, and especially into top level management.

This study investigated differences in the conflict management styles of men and women managers, and specifically of men and women administrators in 2-year colleges across the United States. It utilized the self-administered Thomas-Kilmann Conflict Mode Instrument to measure conflict management on five modes determined by the dimensions of cooperation and assertiveness. …

Organizational Deviance In The Direct Selling Industry: A Case Study Of The Amway Corporation, Carol Lynn Juth-Gavasso

Dissertations

Drawing upon the literatures of organizational theory, sociology, criminology, and entrepreneurship, the intent of this study was to develop a theoretical model which would explain the creation and maintenance of organizational deviance in a direct selling organization. Based upon the work of Cole, Finney and Lesieur, Hughes, Gross, and Vaughan the utility of the model is illustrated with data gathered on the Amway Corporation, a multilevel direct selling organization. The model takes into consideration (1) the environment of the organization; (2) the goals of the organization; (3) the structure of the organization; and (4) the pressures, constraints, and controls which …

The Use Of An Incentive System To Increase Worker Performance In A Financial Setting, Steven S. Armstrong

Dissertations

The use of merchandise as a consequence in a performance based incentive system was assessed in a financial setting. Points were earned by each subject based on individual daily performance. These points were collected by each subject and used toward the purchase of merchandise. A multiple baseline across two groups of bank tellers showed substantial increases in worker behavior after the onset of contingent points. Differences between groups existed and an analysis is provided. Follow-up data revealed sustained performance and a cost-benefit analysis demonstrated substantial savings.

Investigation Of Pre-Detection Signal Processing Of Pseudonoise Communication Signals In The Presence Of Additive White Gaussian Noise And Cw And Bursty Interference, Israel Mayk

Dissertations

By comparison to conventional communication systems, spread-spectrum systems are known to be less affected by interference because of their large dimensionality in signal space. Nevertheless, significant performance degradation is experienced when large interference exists in a few or even one signal coordinates. In this case, interference reduction techniques are also known to provide additional processing gain. A novel class of pseudonoise (PN) invariant algorithms is derived to reduce the impact of interference and restore much of the structure of PN signals received in the presence of interference and noise. A PN signal received by a pre-detection signal process (PDSP) implementing …

Peer Influence: A Method To Help Manage Stress, Ronald Cameron Zurcher

Dissertations

Purpose: The purpose of this project was to find a difference between middle managers’ and blue-collar workers’ episodic non-work related and work related stress events. The information that was found was to be developed into a “peer influence” program to help prevent the workers from experiencing chronic stress symptoms.

Method: From research it was determined that there is a significant difference between middle managers’ and blue-collar workers’ episodic non-work and work related stress events. The material that was reviewed showed a difference in five areas: threat of job loss, lack of authority, new social values (sociability), personal life (satisfaction), and …

Kinetic Modeling Of A Laminar-Flow Reactor, Shih-Hsin Chang

Dissertations

The laminar-flow reactor considering radial dispersion for a species incurring first-order homogeneous (bulk) and heterogeneous (wall) chemical reactions was mathematically modeled. The equation was solved both analytically, and by the Crank-Nicolson finite-difference technique.

The response surface method was used to obtain the optimum values of the two rate constants. The optimum values interact because the wall and bulk reactions proceed in parallel. Varied reactor diameters serve to decouple the bulk and wall reactions to locate the true values of the rate constants.

Four dimensionless variables were defined and used to characterize the reacting system. In addition, their values were shown …

The Effect Of A Higher Order Pole On The Optimum Design Of Minimum Threshold Phase Locked Detectors, Bernard Zivotofsky

Dissertations

The phase lockedloop is widely used as an FM demodulator known as a phaselocked detector (PLD). It is particularly useful in the detection of weak signals because lower threshold is possible with a PLD than with a conventional limiter discriminator. An enhanced version PLD known as an extended range phaselocked detector (ERPLD) is capable of further threshold reduction. The most popular PLD is a second order type I system employing a loop filter having one real pole and one real zero.

One implementation of an ERPLD calls for the addition of a differentiator to the standard loop filter which replaces …

An Analysis Of The Heating And Densification Process During Rotational Molding Of A Thermoplastic Powder In A Uniaxially Rotating Cylindrical Cavity, Floyd Steven Ribe

Dissertations

This dissertation presents the results of an experimental and theoretical investigation of the heating and densification portion of the rotational molding process in a uniaxial, cylindrical mold.

A thorough literature survey is included which reviewed past analysis of the rotational molding process and other areas that assisted in understanding of the process.

The results presented in this dissertation included an analysis of the densification process by use of Scanning Electronic Microscope (SEM) photography producing intermediate correlations between the physical properties of the densifying material and neck radius of adjacent coalescing spheres. In addition, a hybrid experimental procedure coupled with a …