UNT Theses and Dissertations - 140 Matching Results

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open access

Acculturation Level, Generational Status and Gender: Their Role in Acculturative Stress in Young Adolescent Mexican Americans

Description: The purpose of this study was to determine relationships between acculturation level, generational status, and gender with acculturative stress. Acculturation level was determined by the Acculturation Rating Scale for Mexican Americans-II (ARSMA-II) and acculturative stress was determined by the Societal, Attitudinal, Familial and Environmental Acculturative Stress Scale-Children's Version (SAFE-C). Subjects included 1268 Hispanic children ages 11-15. In order to validate the usefulness of the … more
Date: August 2004
Creator: Manning, Suzanne C.
Partner: UNT Libraries
open access

N-Acylethanolamine Metabolism During Seed Germination: Molecular Identification of a Functional N-Acylethanolamine Amidohydrolase

Description: N-Acylethanolamines (NAEs) are endogenous lipid metabolites that occur in a variety of dry seeds, and their levels decline rapidly during the first few hours of imbibition (Chapman et al., 1999, Plant Physiol., 120:1157-1164). Biochemical studies supported the existence of an NAE amidohydrolase activity in seeds and seedlings, and efforts were directed toward identification of DNA sequences encoding this enzyme. Mammalian tissues metabolize NAEs via an amidase enzyme designated fatty acid amid… more
Date: August 2004
Creator: Shrestha, Rhidaya
Partner: UNT Libraries
open access

Adapting Filial Therapy for Families who have a Child with a Life-Threatening Illness

Description: Utilizing a collective case study design, I examined and described the filial therapy (FT) process and adaptations discovered to be necessary and unnecessary in working with families who have a child with a life-threatening illness in the hospital setting. Data from a total of 7 parents was utilized, including those who terminated early, in order to gain a greater understanding of adapting FT for families who have a child with a life-threatening illness and their participation patterns. The par… more
Date: August 2004
Creator: Steen, Rheta LeAnne
Partner: UNT Libraries
open access

Adaptive Planning and Prediction in Agent-Supported Distributed Collaboration.

Description: Agents that act as user assistants will become invaluable as the number of information sources continue to proliferate. Such agents can support the work of users by learning to automate time-consuming tasks and filter information to manageable levels. Although considerable advances have been made in this area, it remains a fertile area for further development. One application of agents under careful scrutiny is the automated negotiation of conflicts between different user's needs and desires. M… more
Date: December 2004
Creator: Hartness, Ken T. N.
Partner: UNT Libraries
open access

Adherence/Diffusion Barrier Layers for Copper Metallization: Amorphous Carbon:Silicon Polymerized Films

Description: Semiconductor circuitry feature miniaturization continues in response to Moore 's Law pushing the limits of aluminum and forcing the transition to Cu due to its lower resistivity and electromigration. Copper diffuses into silicon dioxide under thermal and electrical stresses, requiring the use of barriers to inhibit diffusion, adding to the insulator thickness and delay time, or replacement of SiO2 with new insulator materials that can inhibit diffusion while enabling Cu wetting. This stu… more
Date: May 2004
Creator: Pritchett, Merry
Partner: UNT Libraries
open access

Age and Responses to the Events of September 11, 2001

Description: Following the terrorist attacks on the United States on September 11, 2001, many turned to the field of psychology for greater understanding of the impact of such events and guidance in supporting our citizens. This study sought to gain greater understanding of the differential impact of the September 11th attack on individuals by investigating the influence of age, psychological hardiness, and repression versus sensitization as forms of coping behavior on psychological health. Both an initial … more
Date: December 2004
Creator: Holmes, D. Nicole
Partner: UNT Libraries
open access

An Analysis of Advisory Committee Activities in a Successful Public School Bond Election

Description: The purpose of this study was to determine the perceived effectiveness of specific advisory committee activities during a school bond proposal and election process. The study began with an extensive review of the literature on the use of advisory committee activities in school districts for the purpose of promoting a school bond issue. This revealed that school officials maintaining a low profile, the presence of a diverse community task force, focusing on YES voters, involving the committee in… more
Date: August 2004
Creator: Waters, Philo W.
Partner: UNT Libraries
open access

Analysis of Leadership Perceptions Using Multirater Feedback.

Description: Performance improvement intervention begins with assessment. How that assessment is interpreted can mean the difference between success and failure. Previous research of 360-degree feedback instruments has tried to reconcile the differences between multiple rater groups. Rather than searching for agreement, this research proposes to understand the meaning of the differences using multirater feedback. Individuals determine ratings based upon their own perspective and building upon the understand… more
Date: May 2004
Creator: Bradley, Thomas P.
Partner: UNT Libraries
open access

Analysis of Perceptional Differences Among Department Chairs, Faculty, and Instructors Toward the Barrier to Using Multiple Teaching Strategies in Two-Year Technical and Community College Electronics Courses

Description: The purpose of this study was to identify and analyze perceptional differences among department chairs, faculty, and instructors toward the barrier to using multiple teaching strategies in two-year technical and community college electronics courses. The literature review focused on defining multiple teaching strategies and identifying and discussing four major perceived barriers to implementing them in the electronics classroom: student, resources, classroom environmental, and teacher training… more
Date: May 2004
Creator: Hutyra, Jerry Emil
Partner: UNT Libraries
open access

An Analysis of the Effect of Distance Learning on Student Self-Efficacy of Junior High School Spanish Students.

Description: Prior to the development of interactive television, schools that were either geographically isolated or financially restricted were often unable to provide courses that may have been essential for students. Interactive television has helped such school districts provide appropriate courses for their students. Because student self-efficacy is a significant indicator of student success, the relationship between distance learning and students' self-efficacy requires research. The problem of the st… more
Date: August 2004
Creator: Vroonland, David W.
Partner: UNT Libraries
open access

An Analysis of the Genesis of Motive, Rhythm, and Pitch in the First Movement of the Sonata for Two Pianos and Percussion by Béla Bartók.

Description: This dissertation presents evidence that Béla Bartók created his masterwork, the Sonata for Two Pianos and Percussion (1937), in a very complex period of his life. Since it was a mature piece, Bartók utilized typically "Bartókian" compositional techniques and styles. His ethnomusicological studies were also influential factors in the creation of the Sonata for Two Pianos and Percussion. We can be witness to how different the first draft was to the published version; the minor and major change… more
Date: May 2004
Creator: Ujj-Hilliard, Emöke
Partner: UNT Libraries
open access

The Anatomy of Academic Dishonesty: Cognitive Development, Self-Concept, Neutralization Techniques, and Attitudes Toward Cheating

Description: This study explored the relationship between cheating among university students and their cognitive developmental levels, use of neutralization techniques, self-concept as a multifaceted cognitive construct, and attitude toward cheating. The purposes of this study were to investigate: (1) The relationships between academic dishonesty and each of the following overall independent variables: cognitive development, use of neutralization techniques, self-concept as a multifaceted cognitive construc… more
Date: August 2004
Creator: Arvidson, Cody Jean
Partner: UNT Libraries
open access

Appellate Recruitment Patterns in the Higher British Judiciary: 1850 - 1990

Description: This study seeks to advance the understanding of appellate promotion in the senior judiciary of Great Britain . It describes the population and attributes of judges who served in the British High Courts, Court of Appeal, and Appellate Committee of the House of Lords (i.e., Law Lords) from 1850 to 1990. It specifically builds upon the work of C. Neal Tate and tests his model of appellate recruitment on a larger and augmented database. The study determines that family status, previously asser… more
Date: December 2004
Creator: Thomas, Bruce K.
Partner: UNT Libraries

Application of Cultured Neuronal Networks for Use as Biological Sensors in Water Toxicology and Lipid Signaling.

Description: This dissertation research explored the capabilities of neuronal networks grown on substrate integrated microelectrode arrays in vitro to be applied to toxicological research and lipid signaling. Chapter 1 details the effects of chlorine on neuronal network spontaneous electrical activity and pharmacological sensitivity. This study demonstrates that neuronal networks can maintain baseline spontaneous activity, and respond normally to pharmacological manipulations in the present of three times… more
Access: Restricted to the UNT Community Members at a UNT Libraries Location.
Date: August 2004
Creator: Dian, Emese Emöke
Partner: UNT Libraries
open access

An Assessment of Technology Learning Styles, Skills, and Perceptions Among Teachers of Grades Pre-Kindergarten Through Four.

Description: This study investigated whether a relationship exists between learning style and the self-reported technology-related needs, beliefs, stages of adoption, software expertise, and technology competencies of teachers in a large suburban school district. The Gregorc Style Delineator was used to identify dominant learning style, and the Snapshot Survey was used to measure technology-related needs, beliefs, stages of adoption, and software expertise. Technology competencies were measured using the Te… more
Date: December 2004
Creator: Brubaker, Douglas D.
Partner: UNT Libraries
open access

An Assessment of the Effectiveness of the CHAMPS/Life Skills Program at the University of North Texas: A Pilot Study

Description: This study seeks to determine the effectiveness of the Challenging Athletes Minds for Personal Success (CHAMPS)/Life Skills program at the University of North Texas, as perceived by the student athletes who participate or participated in this program. The study attempts to measure the extent to which the student athletes feel that the program had value; if they received helpful information to support them through their college career to career transition; if the student athletes felt that the p… more
Date: May 2004
Creator: Goddard, Michael
Partner: UNT Libraries

An Assessment of the Use of Student Price Response Models to Predict Changes in Undergraduate Enrollment at a Metropolitan University

Description: Most colleges and universities invest substantial resources in an effort to strategically plan for a sound financial base. The revenue for the financial base is dependent on student enrollment that must be effectively managed. Increases in the price of tuition and fees can lead to decreased enrollment and negatively impact the revenue of an institution. The increases can also impact the enrollment of certain student populations such as minority students and high school graduates enrolling in… more
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Date: December 2004
Creator: Saxon, Randall J.
Partner: UNT Libraries

Barrier and Long Term Creep Properties of Polymer Nanocomposites.

Description: The barrier properties and long term strength retention of polymers are of significant importance in a number of applications. Enhanced lifetime food packaging, substrates for OLED based flexible displays and long duration scientific balloons are among them. Higher material requirements in these applications drive the need for an accurate measurement system. Therefore, a new system was engineered with enhanced sensitivity and accuracy. Permeability of polymers is affected by permeant solubility… more
Access: Restricted to the UNT Community Members at a UNT Libraries Location.
Date: December 2004
Creator: Ranade, Ajit
Partner: UNT Libraries

Bioavailability and toxicity of 2,4,6-trinitrotoluene in sediment.

Description: TNT (2,4,6-trinitrotoluene) is a persistent contaminant at many military installations and poses a threat to aquatic ecosystems. Data from environmental fate and toxicity studies with TNT revealed that sediment toxicity test procedures required modification to accurately assess sediment TNT toxicity. Key modifications included aging TNT-spiked sediments 8-14 d, basing lethal dose on measured sediment concentrations of the molar sum of TNT and its main nitroaromatic (NA) transformation product… more
Access: Restricted to the UNT Community Members at a UNT Libraries Location.
Date: May 2004
Creator: Conder, Jason M.
Partner: UNT Libraries

Biogeography of Montane Mammals on the Colorado Plateau and Adjacent Regions

Description: This study identifies the biogeographic factors that structure small mammal communities on mountains of the Colorado Plateau and adjacent regions. Forty six isolated ranges were characterized across a 5-state study area encompassing the Colorado Plateau, including the central high plateaus of Utah and the Basin and Range Province (i.e. the Great Basin and mountains of Arizona and New Mexico). Presence/absence data of 25 montane mammal species were used to explore the interactions between histor… more
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Date: May 2004
Creator: Carr, Carla B.
Partner: UNT Libraries

Callus Development and Organogenesis in Cultured Explants of Cowpea (Vigna unguiculata (L.) Walp

Description: Cowpea, Vigna unguiculata (L.) Walp is an excellent source of protein, vitamins and minerals and a major food crop many parts of Africa. Optimal production levels are hampered by insect pests and diseases. Biotechnological techniques such as tissue culture and genetic engineering can aid in the development of varieties with resistance to insect pests and diseases. The objective of this study was to investigate conditions necessary for the development of a reproducible tissue culture system tha… more
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Date: December 2004
Creator: Omwenga, George Isanda
Partner: UNT Libraries
open access

Camille Saint-Säens' Piano Concerto No. 5 in F Major, Opus 103: An Analytical Study of Form, Compositional Techniques, and a Performance Perspective

Description: The majority of books about Saint-Säens cover his life, compositions, contemporaries, and French music in general. Although his life is well documented, most sources present only brief analyses of his works; there is not one single comprehensive and exhaustive study of the Piano Concerto in F Major, Opus 103, available in the current literature. This study aims at filling the gap by providing other musicians interested in performing this piece with an initial study-guide. The research for this … more
Date: December 2004
Creator: Yoo, Seung Won
Partner: UNT Libraries

Carbon Nanotube/Microwave Interactions and Applications to Hydrogen Fuel Cells.

Description: One of the leading problems that will be carried into the 21st century is that of alternative fuels to get our planet away from the consumption of fossil fuels. There has been a growing interest in the use of nanotechnology to somehow aid in this progression. There are several unanswered questions in how to do this. It is known that carbon nanotubes will store hydrogen but it is unclear how to increase that storage capacity and how to remove this hydrogen fuel once stored. This document off… more
Access: Restricted to the UNT Community Members at a UNT Libraries Location.
Date: May 2004
Creator: Imholt, Timothy James
Partner: UNT Libraries

City of Denton Municipal Solid Waste Characterization and Management Strategies

Description: Due to concern about diminishing landfill space, the City of Denton contracted a municipal solid waste characterization study in 1999 that would identify materials for diversion. This paper describes the results of 5 1-week waste sorting events, a scale-house analysis, a recycling participation study, a recycler profile and a similar city study. The results of the characterization studies suggest that at least 50% of each waste stream is recyclable or divertible though paper products accounted … more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2004
Creator: Brady, Patricia D.
Partner: UNT Libraries
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