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  Partner: UNT Libraries
 Decade: 1990-1999
 Collection: UNT Theses and Dissertations
A descriptive study of students who were accepted for admission at West Texas A&M University but did not enroll

A descriptive study of students who were accepted for admission at West Texas A&M University but did not enroll

Access: Use of this item is restricted to the UNT Community.
Date: December 1999
Creator: Barton, Mary Edna
Description: Each year, institutions of higher education devote valuable financial and personnel resources in the hope of enhancing student recruitment and matriculation. The purpose of this study was to examine the demographic characteristics, the factors that influenced studentsÂ’ decisions to apply for admission to a university, their educational intentions, and their reasons for not enrolling after they had been admitted. The subjects of the study were first-time freshmen accepted for admission to a mid-size, public, southwestern university who did not enroll for the fall 1997 semester. Statistically significant differences were found when comparing no-shows and enrolled students by gender, ethnicity, age, ACT/SAT score, and distance of their hometown from the university. There were more female no-shows, and more males enrolled than females; a greater percentage of no-shows reported the distance of their hometown to be more than 200 miles; and the mean test score for no-shows was higher. Factors important in the college selection process found to be statistically significant among the groups were: a greater percentage of Minorities than Caucasians reported the importance of the financial aid award or a scholarship offer; students living within 100 miles of the campus reported the proximity of the university as important, advice received ...
Contributing Partner: UNT Libraries
The Desires of Rebecca Horn: Alchemy and the Mechanics of Interpretation

The Desires of Rebecca Horn: Alchemy and the Mechanics of Interpretation

Date: August 1997
Creator: Dunlop, Douglas Donald
Description: The purpose of this thesis is to analyze the use of alchemy within the work of Rebecca Horn, to elucidate its presence in her work, and to illuminate its purpose as a personal philosophy and as a creative tool. The use of alchemy within Horn's work occurs as a process of revelation and transformation. Alchemy is revealed as a spiritual philosophy and as an interpretative system through the changes that occur in Horn's oeuvre. Throughout Horn's career, alchemy has developed into an interpretive system, a type of spiritual and cosmic perspective, that allows the artist to study, access, and meld diverse realities (sacred and profane) and diverse social systems (religious and scientific) into a more holistic and spiritually infused reality for herself and society-at-large. The purpose of her work is to help reinvest contemporary life with a spiritual presence by offering a model and a means of bringing the sacred into the profane.
Contributing Partner: UNT Libraries
Developing Criteria for Extracting Principal Components and Assessing Multiple Significance Tests in Knowledge Discovery Applications

Developing Criteria for Extracting Principal Components and Assessing Multiple Significance Tests in Knowledge Discovery Applications

Date: August 1999
Creator: Keeling, Kellie Bliss
Description: With advances in computer technology, organizations are able to store large amounts of data in data warehouses. There are two fundamental issues researchers must address: the dimensionality of data and the interpretation of multiple statistical tests. The first issue addressed by this research is the determination of the number of components to retain in principal components analysis. This research establishes regression, asymptotic theory, and neural network approaches for estimating mean and 95th percentile eigenvalues for implementing Horn's parallel analysis procedure for retaining components. Certain methods perform better for specific combinations of sample size and numbers of variables. The adjusted normal order statistic estimator (ANOSE), an asymptotic procedure, performs the best overall. Future research is warranted on combining methods to increase accuracy. The second issue involves interpreting multiple statistical tests. This study uses simulation to show that Parker and Rothenberg's technique using a density function with a mixture of betas to model p-values is viable for p-values from central and non-central t distributions. The simulation study shows that final estimates obtained in the proposed mixture approach reliably estimate the true proportion of the distributions associated with the null and nonnull hypotheses. Modeling the density of p-values allows for better control of ...
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Development of a coaxiality indicator

Development of a coaxiality indicator

Access: Use of this item is restricted to the UNT Community.
Date: December 1999
Creator: Arendsee, Wayne C.
Description: The geometric dimensioning and tolerancing concept of coaxiality is often required by design engineers for balance of rotating parts and precision mating parts. In current practice, it is difficult for manufacturers to measure coaxiality quickly and inexpensively. This study examines feasibility of a manually-operated, mechanical device combined with formulae to indicate coaxiality of a test specimen. The author designs, fabricates, and tests the system for measuring coaxiality of holes machined in a steel test piece. Gage Repeatability and Reproducibility (gage R&R) and univariate analysis of variance is performed in accordance with Measurement System Analysis published by AIAG. Results indicate significant design flaws exist in the current configuration of the device; observed values vary greatly with operator technique. Suggestions for device improvements conclude the research.
Contributing Partner: UNT Libraries
Development of a Simplified Fracture Toughness Tool for Polymers

Development of a Simplified Fracture Toughness Tool for Polymers

Date: August 1997
Creator: Marnock, Patrick J. (Patrick Joseph)
Description: This thesis presents research toward the development of a simple inexpensive fracture toughness tool for polymeric materials. Experiments were conducted to test the specimen configuration and the fracture toughness tool against an established ASTM standard for polymer fracture toughness, D5045, and a commonly used four-point bend method. The materials used in this study were polycarbonate and high density polyethylene. Reductions in both the production time and the variability resulting from the preparation of the specimens were addressed through the use of specially designed fixtures. The effects from the razor cut depths used in the chevron notch were compared to the fracture toughness values obtained in order to determine the effect upon the validity of the fracture toughness.
Contributing Partner: UNT Libraries
Development of Cardiovascular Regulation in Embryos of the Domestic Fowl (Gallus Gallus), with a Partial Comparison to Embryos of the Desert Tortoise (Gopherus Agassizii)

Development of Cardiovascular Regulation in Embryos of the Domestic Fowl (Gallus Gallus), with a Partial Comparison to Embryos of the Desert Tortoise (Gopherus Agassizii)

Date: August 1999
Creator: Crossley, Dane Alan
Description: In adult vertebrates, cardiovascular regulation is accomplished by numerous systems with neural, hormonal and local components responsible for the majority of regulation. These regulatory components work in concert to maintain the essential function of blood perfusion to adult tissues. Given the essential nature of this function it is therefore surprising that the development of cardiovascular regulation during gestation is poorly understood. The majority of what is known is based on a single vertebrate model, the fetal lamb. The fetal lamb has been used in multiple studies due to the clear clinical applications and has been pivotal in understanding the onset of regulation in developing vertebrates. However, study on the fetal lamb is limited to the latter 40% of gestation and has the added complication of an in-utero developmental strategy. Therefore the primary focus of this dissertation was to characterize basic cardiovascular regulation in the chicken embryo to provided the needed information for it's use an alternative to the fetal lamb. Developing chicken embryos rely on both alpha and beta adrenergic tones to maintain normal heart rate and arterial blood pressure during incubation. However, on day 21, just prior to hatch, these animals lose both tones on arterial pressure suggesting the ...
Contributing Partner: UNT Libraries
The Development of IAM District Lodge 776 in Fort Worth, Texas, 1942-1946: A Case Study in the Growth of Organized Labor During World War II

The Development of IAM District Lodge 776 in Fort Worth, Texas, 1942-1946: A Case Study in the Growth of Organized Labor During World War II

Date: August 1999
Creator: White, Kirk
Description: This thesis concentrates on a local union of the International Association of Machinists (IAM), District Lodge 776, of Fort Worth, Texas, during the war years. The main argument of the thesis runs along three basic lines. First, it demonstrates that the experiences of the Fort Worth Machinists clearly fit into the national labor movement during the war years. Second, it argues that the existence, survival, and strength of the union depended greatly on outside forcesan expanding national economy, a powerful national union, and a generally labor-friendly government. Third, it shows that union officers and rank-and-file members used their bases of strengththe national economy, the national IAM, and the federal governmentto build an effective local labor organization.
Contributing Partner: UNT Libraries
Diagnosing Learner Deficiencies in Algorithmic Reasoning

Diagnosing Learner Deficiencies in Algorithmic Reasoning

Date: May 1995
Creator: Hubbard, George U.
Description: It is hypothesized that useful diagnostic information can reside in the wrong answers of multiple-choice tests, and that properly designed distractors can yield indications of misinformation and missing information in algorithmic reasoning on the part of the test taker. In addition to summarizing the literature regarding diagnostic research as opposed to scoring research, this study proposes a methodology for analyzing test results and compares the findings with those from the research of Birenbaum and Tatsuoka and others. The proposed method identifies the conditions of misinformation and missing information, and it contains a statistical compensation for careless errors. Strengths and weaknesses of the method are explored, and suggestions for further research are offered.
Contributing Partner: UNT Libraries
A Dialectical Approach to Studying Long-Distance Maintenance Strategies

A Dialectical Approach to Studying Long-Distance Maintenance Strategies

Date: August 1997
Creator: Maguire, Katheryn C. (Katheryn Coveley)
Description: Using both qualitative and quantitative methodology, this thesis investigates the tactics used by long-distance relational partners, the differences in use of the tactics between long-distance and proximal partners, the relationship among the maintenance tactics, and the relationship of the tactics to relational satisfaction. Seven relational maintenance strategies were identified from the investigation: affirmation, expression, high tech mediated communication, low tech mediated communication, future thought, negative disclosure, and together-time. Significant differences in the use of maintenance tactics between long-distance and proximal partners were discovered and several tactics were found to correlate with relational satisfaction for both relationship types. It is concluded that relational maintenance should be viewed from a multi-dimensional perspective that recognizes the impact relational dialectics have on relationships.
Contributing Partner: UNT Libraries
Differences in Marketing Mainstream and Independent Feature Films in the United States (1990-1995)

Differences in Marketing Mainstream and Independent Feature Films in the United States (1990-1995)

Date: December 1995
Creator: Ford, Conny (Conny M.)
Description: The purpose of this study is (1) to examine mainstream studio films and their marketing (2) to examine independent films and their marketing (3) to explore the marketing challenges of independent films (4) to explore new developments in independent film and the emergence of crossover films (5) to explore the benefits of alliances between the major studios and independent film distributors (6) to examine the diminishing differences between major studio films and independent films.
Contributing Partner: UNT Libraries