Digital Commons Network^™

The Purposeful Use Of An Object In The Development Of Skill With A Prosthesis, Hon Keung Yuen

Masters Theses

Theoretically, perceptual information from the interaction with an object and its surfaces (an affordance) facilitates the development of motor skill. This study investigated the use of an affordance in learning control of flexion and extension of an above-elbow training prosthesis. Fifty-two male college students were randomly assigned to two training procedures: two, 1.5-minute periods of a joining dots activity with a flashlight attached to the hook of the prosthesis (affordance group), and practice moving the prosthesis at the elbow joint (no-affordance group) for the same amount of time. To assess generalization of skill to a different task, each subject traced …

Effects Of Caffeine Consumption On Cardiovascular Reactivity To Social Stress, Suzanne L. Keller

Masters Theses

Several risk factors have been linked to cardiovascular diseases; among them are exposure to psychological stressors and caffeine consumption.

The objective of this study was to examine the effects of caffeine consumption on cardiovascular reactivity to role play simulations of social stressors. A double-blind alternating treatment design was employed. Eight subjects (five female and three male) received either caffeine-containing or placebo beverages. Each subject received four samples of each beverage over a total of eight sessions. The results include: (a) stressors increased systolic and diastolic blood pressure along with heart rate in baseline, placebo and drug conditions; (b) caffeine produced …

The Effects Of Performance Anxiety Management Training On Musicians’ Self-Efficacy, State Anxiety And Musical Performance Quality, Nancy Barnes Mansberger

Masters Theses

The purpose of this study was to investigate the effects of Performance Anxiety Management Training (PAMT) on levels of perceived self-efficacy, state anxiety, and performance quality of undergraduate musicians performing under stressful conditions. Nineteen undergraduate music majors were selected for this study. Ten received PAMT, and nine received no treatment. Subjects were tested immediately prior to a stressful evaluative performance jury on self-assessed measures of self-efficacy and state anxiety. Adjudicating music faculty determined subjects' level of performance quality. Analysis of variance revealed that subjects in the PAMT group had significantly higher scores on measures of self-efficacy, and significantly lower scores …

A Preliminary Report Of Investigations At The Kline 1 Site (20sj29), St. Joseph County, Michigan, Dale W. Quattrin

Masters Theses

The Kline 1 site, located in Mendon Township, St. Joseph County, Michigan, is a multi-component site situated on the eastern shore of Portage Lake. While the projectile points recovered during surface collecting suggest interm ittent presence on this site from late Paleo-Indian to Late Woodland times, the occupation offering the most substantial cultural and subsistence data is attributed to the Late Woodland period. Radiocarbon assays received on two features gave dates of 830 + 70 B.P. and 810 + 50 B.P. calibrated to be A.D. 1215 and A.D. 1223 respectively. The importance of this site relates to its spatially intermediate …

Recoil Corrected Continuum Shell Model Form Factor Calculations For 4He(E,E’)4He(0+), Jiang Yu

Masters Theses

Charge form factor calculations for the electroexcitation of the ⁴He, 0⁺ state have been performed within the context of the recoil corrected continuum shell model. A pure Os⁴ ground state structure is assumed and full internal coordinate recoil corrections are made. The result is compared with available data. It is demonstrated that the 0+ state may be described in a 1p -1h shell model context. Inclusion of nsOs^-1 ground state correlations is suggested for further research.

Recidivism After Youth Imprisonment In Relationship To Criminal Career: A Twenty Year Follow Up Study, Helmut F. Janssen

Masters Theses

The purpose of this study is to examine the effects of early biographical factors on the future development of the juveniles and focusses on recidivism and factors influencing the development of a criminal "career." It includes a twenty year follow-up period, studying 500 juveniles released from two juvenile prisons of West Germany in 1961.

From a data set originally created in 1966, which included 290 variables, 29 variables, including individual and social characteristics as well as variables dealing with prior experiences with sanctioning, were ultimately used for this study. In addition, some new variables were created from the variables of …

Establishing Interagency Communication Among K-12 School Districts And Government Agencies Through An Intermediate School District, Gary R. Campbell

Masters Theses

The proposed procedure for a local school administrator to establish direct interagency communication between local, K-12 school districts and other government agencies who deal with troubled youth was to: (a) examine the function and organization of the intermediate school district, (b) evaluate the role of its superintendent, and, (c) assist the superintendent in establishment of an interagency discussion group. the This group would meet regularly to discuss mutual concerns in helping troubled youth.

This experience focused on gaining an understanding of the organization and function of a Michigan intermediate school district, the role of its superintendent, and the other non-school, …

The Relationship Of Pore Volume And Pore Size Distribution To The Development Of Gloss And Scattering Coefficient, John A. Cook

Masters Theses

This study describes in a quantitative manner the relationships between coating structure and optical properties. Gloss, scattering coefficient and void volume were measured after applying different blends of polystyrene spheres to mylar film. Each coating was modeled using large spherical particles of the same size ratios to measure pore size distribution. The coating structure followed well with theoretical packing characteristics of spheres. Optical properties were related to changes in coating structure. Scattering coefficient and gloss correlated better with pore size distribution than particle size. Gloss increased when total void volume was reduced, while the scattering coefficient decreased.

A Pilot Plant Evaluation Of Selected Hardwood Pulps For Supercalendered Grade B Paper, Devendra Kumar Srivastava

Masters Theses

The proliferation of wood free printing and writing papers suggests the evaluation of hardwood kraft and chemithermomechanical pulps for the manufacture of uncoated rotogravure paper. In this study 100% aspen kraft, 100% eucalyptus kraft, and 50% aspen chemithermomechanical with 50% kraft pulps were used to produce rotogravure paper on as 32" trim Fourdriner paper machine under alkaline papermaking condition.

The machine runnability was smooth using 100% hardwood furnish for the production of rotogravure paper. The paper produced was found suitable for supercalender grade B applications, such as Sunday magazines, inserts, and flyers. The tensile index and tear index values were …

Repeated Acquisition With The Developmentally Disabled, Jeannie Madsen

Masters Theses

Repeated-acquisition data were obtained from four developmentally disabled adults. The task was selecting the poker chip with the sticker on its underside in a sequence of sets of chips. When a sequence was mastered (four consecutive errorless runs) the subjects were given a new sequence to learn. Money was reinforcement for correct sequence completion. Total errors before mastery was the dependent variable.

In Phase 1 the subjects completed as many sequences as possible during each 15-minute session. Errors per sequence was a reasonably stable dependent variable within subjects, and between-subject differences were what would be expected on the basis of …

Crime And Delinquency In Haiti: A Study Of Crime In A Developing Country, Gerard Mauze

Masters Theses

The primary intent of this study was an attempt at describing, understanding and analyzing the most common types, incidences and forces that produce crime and delinquency in Haiti. A secondary concern of this work was to do the ground work which would enable the formulation of testable hypotheses about the causes of crime and delinquency in Haiti.

Even though a number of developing nations face a rapid growth in their crime and delinquency rates, Haiti appears to maintain a relatively low crime rate.

The law-abiding behavior of Haitian youths is due to a number of factors: (a) the strong family …

Utilizing Daily Repertoire Behavior To Facilitate The Acquisition Of Generalized Imitation In Profoundly Mentally Retarded Adults, Scott A. Kremser

Masters Theses

Two procedures were compared in teaching the skill of generalized imitation. One procedure incorporated some of the subject's daily behavior repertoire into the imitation training paradigm. Another similar procedure utilized non-repertoire responses during training. Two male profoundly mentally retarded adults were trained with each procedure. Overall, the acquisition of generalized imitation was facilitated by incorporating daily repertoire behaviors into the imitation training packages. Statistical analysis revealed a significant difference in levels of generalized imitation as a function of training condition. Results were variable across subjects however, and it is questionable whether the difference is clinically significant. Further and more refined …

Factors That Relate To Job Retention For Former Welfare Recipients, Lisa Spadafore

Masters Theses

This descriptive study attempted to determine the factors that relate to job retention for former welfare recipients. Welfare recipients (15 women and 17 men), who were participating in a job club program, completed the Wonderlic Personnel Test (Wonderlic, 1985), the 16 Personality Factors Test (Eber, Cattell, & IPAT Staff, 1985), and a Background/Monetary Questionnaire. Thirty-two clients who obtained jobs were divided into two groups, those who retained their job for 90 days (n = 21) and those who did not (n = 11). Of the 31 factors analyzed, four showed a statistically significant relationship with job retention; amount of jail …

Summer Migrant Program Internship, Jacqueline G. Ladwein

Masters Theses

The proposed procedure for an elementary school teacher to gain entry level experience, skills, and knowledge required to assume a summer migrant program assistant directorship was to examine the scope of duties of a summer migrant program assistant director and to acquire knowledge, skills, and experience by assisting a summer migrant program assistant director as he performed his daily responsibilities.

The experience focused on all procedures necessary to establish a summer migrant program. This focus included: goals of the program, staffing, interpersonal relationships, disciplining, community and peripheral organization relationships and administrative leadership styles.

The experience provided on-the-job awareness of the …

The Effects Of Group Incentive Plans On Individual Performance, Karen Geralyn Stoneman

Masters Theses

A simulated work environment was utilized to study the effects of group incentive plans on individual performance on an assembly task. The subjects in the study were college students who worked in groups of a small size, a medium size, or a large size. A reversal design was utilized in which the first condition was an individual incentive condition, the second was a group incentive condition, and the final was the return to an individual incentive condition.

The results showed: (a) individual performance did not significantly change when individuals were switched from an individual to a group incentive plan; (b) …

Synthesis And Study Of Novel Quinoxaline Di-N-Oxide And 3-Acyl-2-Methylquinoxaline Di-N-Oxides, Cyprian Okwara Ogbu

Masters Theses

This research project consists of two parts. The first involved the synthesis of a novel quininoxaline di-N-oxide via benzofuroxan. The second part was the use of this compound as a synthetic precursor.

It was assumed that 3,4-dimethylaniline would be successfully converted to 5,6-dimethybenzofurazan 1-oxide (5,6-dimethybenzofuroxan) through a sequence of reaction steps. Fortunately, this assumption was correct as the desired compound was produced. This compound was utilized in synthesizing the novel 3-acetyl-2,6,7-trimethylquinoxaline 1,4-dioxide. From the structure of this adduct, it is believed that it will take part in condensation reactions associated with methyl ketones without disrupting the quinoxaline di-N-oxide framework, and …

A Study Of An Integral Equations For Computing Radial Distribution Functions, Noraini Ismail

Masters Theses

A two parameter integral equation, equation T is studied to compute radial distribution functions for a classical fluid whose single component particles interact pairwise according to a square-well potential function. A computer program originally written for a DEC 10 was modified to run on a DEC VAX. At the same time, modifications were made to take advantage of the faster VAX and to reduce the time an operator must spend to get a solution to the integral equation. Solutions were obtained for several densities, temperatures, and parameter values. Temperatures ranged from a high temperature gas to near critical temperatures. Accurate …

The Evaluation Of Efficiency Determination Of Screening Device (Pressure Screen) By Image Analysis, Rajeev Kumar Goyal

Masters Theses

The Omnicon 3600 image analyzer was used in the study of the evaluation of screening efficiency determination methods. It is very difficult to get a good over all contaminant mass balance across a pressure screen because of the factors involved such as sampling around a screen, time spent in collecting the samples, and possible size reduction of the contaminants by the pump and screen. The image analyzer gives the contaminant analysis in terms of the total number of particles, total area of all the particles, the mean particle area and a histogram of the contaminant size distribution. The histogram data …

Eliminating Resistive Behavior During Physical Therapy Using A Behavior Modification Procedure, Marcia Erhardt Roback

Masters Theses

The clinical utility of a behavior modification procedure, Differential Reinforcement of Other Behavior, to reduce resistive behavior during physical therapy was investigated using a sample of four severely physically and developmentally disabled females. A multiple baseline design across subjects was employed to assess the effects of positively reinforcing behaviors other than the resistive or inappropriate behaviors during the therapy sessions. The procedure employed produced a dramatic decrease in the inappropriate behavior of two subjects, a moderate decrease in the behavior of one subject, and a minimal decrease in the fourth. The observational system generated extremely reliable data as indicated by …

Reconstruction Of A Real Object Using Stereo Vision, Ignatios E. Vakalis

Masters Theses

The problem of reconstructing a three dimensional object from its two dimensional image is the most critical problem which any powerful visual system must solve. The human visual system is known to solve this problem with impressive range and resolution. Computer solutions have fallen far short of human performance mainly because the solution process is poorly understood.

The reconstruction problem is solved using stereo vision. The distance of points on the object from the viewing device and the orientation of specific patches of the visual surface with respect to the viewing device are computed. Discontinuities in distance and orientation are …

Training Mildly Retarded Adults To Generate Effective Solutions To Daily Living Problems, Dennis Munk

Masters Theses

Two mildly mentally retarded adults, living in a semi-independent residential program received training in solving common social problems. The subjects were trained to perform five problem-solving component skills: (1) identifying the problem, (2) defining a goal, (3) evaluating a solution, (4) evaluating alternative solutions, and (5) selecting a best solution. The five component skills were trained in sequence, as a multiple-baseline across skill behaviors design. It was hypothesized that the training program would successfully improve the subjects' ability to perform the component skills when solving trained and unfamiliar problems. The unfamiliar problems were included to test generalization of skill. The …

An Analysis Of Early Woodland Pottery From Southwest Michigan, James W. Cogswell

Masters Theses

Significant amounts of Early Woodland pottery have been recovered from excavations in southwest Michigan. Radiocarbon and thermoluminescence assays date this pottery from 590 B.C. to A.D. 10. This pottery is analyzed in great detail, providing evidence for attributes heretofore unreported in the Great Lakes area. Selected vessel attributes are presented in a chronological framework, and potential trends in the regional development of Early Woodland pottery are discussed.

Synthesis And Reactions Of A-Diketones And Preparation Of Some New Benzimidazoles, Mohamad Reza Agharahimi

Masters Theses

This report will discuss the synthesis of 2,5-dl-(p-chlorophenyl)-3,4-dioxoadiponitrile and its reactions. This compound exists in the form of 4,4'- dichloropulvinic nitrile which is a precursor to 4,4'-dichk>rovulpinic acid. These compounds have been shown to have antiinflammatory activity in rats.

The benzimidazole and pyridazine derivatives of 4,4'-dichioropulvinic nitrile and the benzimidazole derivative of 4,4'-dichk>rovuipinic acid are another group of compounds that are also believed to have useful biological activities. The Pinner synthesis of imidates is used to make the intermediate to the benzimidazole derivative of 4,4'-dichloropulvinic nitrile.

This report will include the methodology of the reactions and …

Sessile Drop Studies Of Aluminum On Sapphire, Ke Wen K. Li

Masters Theses

A sessile drop technique employing a drop placement method has been used to investigate the wetting behavior and interfacial phenomena between aluminum and single crystal α-alumina. Measurements were made under a flowing mixture of H₂ and He atomsphere from 1200°C to 1600°C. Acute contact angles decreased continuously in all cases during the 8-hour experimental time. Neither the oxygen partial pressure of the flowing gas nor the orientation of the single crystal alumina substrate affected the contact angles, but the shapes of crystals grown at the substrate-metal interfaces were dependent on the orientation of the substrate surface to some extent. …

Reductive Stripping Of Iron(Iii) From Di(2-Ethylhexyl) Phosphoric Acid, Byron G. Belew

Masters Theses

"Unwanted impurities, present in raw materials, are often coextracted along with desired constituents during leaching. If left unchecked, impurity levels may increase in hydrometallurgical process streams until their presence has deleterious effects upon subsequent unit processes. Due to its abundance and ease of extraction, the presence of ferric iron in solvent extraction circuits has always been a problem. The technique proposed herein constitutes a novel approach to remove iron from zinc hydrometallurgical circuits; but the principles employed may find a variety of applications.

This research investigated the reduction and stripping of ferric iron from di(2-ethylhexyl) phosphoric acid into a …

Paraffin Deposition Property Measurement Using Differential Scanning Calorimetry, Kevin Lynn Thornsberry

Masters Theses

Differential Scanning Calorimetry (DSC) has been used in past studies to identify the cloud points of diesel fuels, lube oils, jet fuels etc. and it has been assumed that its application extends to all paraffinic hydrocarbons. To verify this and to investigate the possible application of Differential Scanning Calorimetry to the production phase of the petroleum industry, the onset of wax crystallization is compared with ASTM cloud point for a number of paraffinic mixtures including a variety of crude oils. Results show cloud point can be determined for crudes using DSC. Additionally, wax content can be found on a known …

Optimizing Transformer Impedance For Short Circuit Analysis, Louis Scott Becker

Masters Theses

"Transformer impedances change when the tap positions on the primary or secondary are changed. Models were designed that gave the maximum impedance variation for a large percentage of transformers studied. These models were used to study how fault currents deviated from the predicted values if the actual transformer impedance was not the same as the predicted impedance. The effects of the change in turns ratio was also taken into account, and the base voltages were chosen to be different from the transformer voltages to include this possible error.

Faults were placed on the secondary of a model radial power system, …

Vle For 1,3-Butadiene With 1,2-Butadiene And Propyne, Patrick J. Gripka

Masters Theses

"Vapor pressures for pure 1,3-butadiene, 1,2-butadiene and propyne and 10 binary mixtures are reported at 5, 20, 35, 50, and 65°C. An equation of state utilizing saturated vapor and liquid densities is used to correlate the experimental data. Calculated relative volatilities and saturated densities are reported for the systems 1,3-butadiene - 1,2-butadiene and 1,3-butadiene - propyne. The thermodynamic excess functions Helmholtz free energy, Gibbs free energy, entropy, enthalpy, internal energy, volume, and heat capacity are derived for the equation of state and the excess properties are reported for the two systems"--Abstract, p. iv.

Packaging Engineering Education Qualitative Need Assessment, M. Douglas Sachs

Masters Theses

"Packaging engineering is an interdisciplinary field which has no formal degree program to support it. While there arc packaging engineers in industry, there are no packaging engineering degrees presently being offered by our nation's colleges and universities. In order to lay a foundation upon which a degree program could be based, this thesis has investigated the needs of packaging engineering education by seeking the input of the packaging industry. This qualitative comparison has been quantified, resulting in a list of prioritized classes and topics upon which a degree program could be based"--Abstract, page ii.

Main Problems With Management Information Systems And Their Relationship To Critical Mis Success Factors, Thomas Schmitt

Masters Theses

Most companies do not exploit all potential benefits of Management Information Systems (MIS). To enhance the understanding of how MIS might be better managed, a nationwide mail-survey among 280 randomly selected chief MIS executives of Corporate 1000 firms was conducted.

The first part of the thesis investigated the areas of importance for MIS success and performance ratings of the 85 participating managers on the issues. In the second part relationships between these variables and the success of the MIS operations were established to derive critical success factors.

The findings indicate that there is a shift towards an increased strategic importance …