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The Effect of Presence of Support Systems and Level of Agreement on the Performance of Work Groups (open access)

The Effect of Presence of Support Systems and Level of Agreement on the Performance of Work Groups

In the study of team-based organizations most of the research has focus on the internal make-up and structure of teams. Recently there has been more interest in the effects that environment has on teams. With this new focus Support Systems in organizations have become an area of interest. Examining the perceptions of workers with respect to support systems of organizations could give insight into performance. This study specifically examines the interaction between a team's shared perception of the support in their environment and the level of support in their environment. The interaction between the two does seem to have a strong relationship with perceived performance. How do the two concepts interact, and what does this mean for organizational designers? Both questions are discussed.
Date: May 1999
Creator: Adcock, John R. (John Roger)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Computer-Based Process Control System for a Target Station in a LINAC Facility (open access)

A Computer-Based Process Control System for a Target Station in a LINAC Facility

An event-driven, sequential, process control system was designed for International Isotopes, Inc., to automate and remotely control a target station at the company's linear accelerator facility. The designed system consisted of two major sections: a software program (virtual instrument), which was developed by LabVIEW, and a hardware interface (FieldPoint Modular Distributed I/O System by National Instrument), which had to be a pre-developed system that did not require customization. The designed virtual instrument was tested on a simulation model that mimed the target station. The result was a valid design.
Date: May 1999
Creator: Al-Shantaf, Abdulraouf O.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Power Politics of Hells Canyon (open access)

The Power Politics of Hells Canyon

This study examines the controversy regarding Hells Canyon on the Snake River, North America's deepest gorge. Throughout the 1950s, federal and private electric power proponents wrangled over who would harness the canyon's potential for generating hydroelectricity. After a decade of debate, the privately-owned Idaho Power Company won the right to build three small dams in the canyon versus one large public power structure. The thesis concludes that private development of Hells Canyon led to incomplete resource development. Further, support of private development led to extensive Republican electoral losses in the Pacific Northwest during the 1950s.
Date: August 1999
Creator: Alford, John Matthew
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Development of a Coaxiality Indicator

Access: Use of this item is restricted to the UNT Community
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.
Date: December 1999
Creator: Arendsee, Wayne C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Vicarious Traumatization, Secondary Traumatic Stress, and Burnout in Sexual Assault and Domestic Violence Agency Staff and Volunteers (open access)

Vicarious Traumatization, Secondary Traumatic Stress, and Burnout in Sexual Assault and Domestic Violence Agency Staff and Volunteers

Two constructs, vicarious trauma (VT) and secondary traumatic stress (STS), describe therapistsÂ’ reactions to clientsÂ’ traumatic material. VT (TSI Belief Scale [BSL]), emphasizes cognitive belief system changes resulting from cumulative exposure to survivors. STS, (Compassion Fatigue Self-test for Psychotherapists [CFST]) combines PTSD and burnout symptomatology explaining sudden adverse reactions to survivors. Burnout (BO; Maslach Burnout Inventory [MBI]), links emotional exhaustion, depersonalization, and deficient personal accomplishment to inadequate institutional supports in interpersonally demanding work. This study investigated BSL and CFST validity, counselor trauma history, and client exposure-related VT, STS, and BO in 105 trauma counselors. Results demonstrate concurrent validity between BSL and CFST; other results dispute adequate validity. BO, and client exposure were related. Traumatized counselors scored higher than non-traumatized counselors on CFST, BSL, and SCL-90-R.
Date: August 1999
Creator: Baird, Stephanie
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Cure Kinetics and Processing Parameters of Neat and Reinforced High Performance Epoxy Resins: Evaluation of Techniques

Access: Use of this item is restricted to the UNT Community
Kinetic equation parameters for the curing reaction of a commercial glass fiber reinforced high performance epoxy prepreg composed of the tetrafunctional epoxy tetraglycidyl 4,4-diaminodiphenyl methane (TGDDM), the tetrafunctional amine curing agent 4,4Â’-diaminodiphenylsulfone (DDS) and an ionic initiator/accelerator, are determined by various thermal analysis techniques and the results compared. The reaction is monitored by heat generated determined by differential scanning calorimetry (DSC). The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC and temperature-modulated DSC (TMDSC), thermomechanical (TMA) and dynamic mechanical (DMA) analysis and thermally stimulated depolarization (TSD). Changes in viscosity, also indicative of degree of conversion, are monitored by DMA. Thermal stability as a function of degree of cure is monitored by thermogravimetric analysis (TGA). The parameters of the general kinetic equations, including activation energy and rate constant, are explained and used to compare results of various techniques. The utilities of the kinetic descriptions are demonstrated in the construction of a useful time-temperature-transformation (TTT) diagram for rapid determination of processing parameters in the processing of prepregs. Copyright is held by the author, unless otherwise noted. All rights reserved. Files: Thesis.pdf Special Conditions
Date: December 1999
Creator: Bilyeu, Bryan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Effects of a Remote-Controlled Tactile Prompt on the Initiation Skills of a Child with Autism (open access)

Effects of a Remote-Controlled Tactile Prompt on the Initiation Skills of a Child with Autism

A 4-year old child with autism was taught to make a social initiation statement following a remote-controlled tactile prompt (RCT). The RCT prompt was taught by using a time-delay procedure with written script cards containing initiation statements. Training trials occurred in 6 different play locations in the child's room. Restricted Trial training consisted of allowing the child to play independently, activating the RCT prompt and playing with the child based on any initiation until a warning to end was given. In Free Play training, the warning to end the activity was removed. The child's initiation statements increased from 0 in baseline, to spontaneous initiations in 100% of the trials in all training and generalization phases. The number of words in an initiation statement increased from 3 to 25 per trial. Spontaneous initiations in the No RCT phase generalized to the child's mother without training.
Date: August 1999
Creator: Bingham-Watts, Kera L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Thais Taking Turns: How Thais Participate in Group Work in the American Classroom (open access)

Thais Taking Turns: How Thais Participate in Group Work in the American Classroom

Using Ethnography of Communication, Conversational Analysis, and surveys, Thai students' participation in group work was studied to determine how they interact with native English-speaking students. Issues discussed are: (1) behaviors Thai students display during group work; including comparisons and contrasts to native students' behaviors, (2) prejudices native students have about including Thai students in group work, (3) Thais' strengths and weaknesses in group work, and (4) perceptions native and Thai students and their professors have regarding group work and its importance to successful course completion. The study concludes by recommending ways that both Thai students and their professors can enhance the learning outcomes of courses that heavily emphasize group work.
Date: August 1999
Creator: Bischof, Janine Chere
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Human Object: Explorations of the Figurative Toy (open access)

The Human Object: Explorations of the Figurative Toy

This Problem in Lieu of Thesis documents the thought processes that led to the completion of a series of five interactive sculptures. Each piece incorporates a part of the human body taken from its normal context and placed into the context of children's playground equipment.
Date: December 1999
Creator: Blytas, Christina
Object Type: Thesis or Dissertation
System: The UNT Digital Library
"Marvelous Accidents": The Concerto for Prepared Piano and Chamber Orchestra of John Cage (open access)

"Marvelous Accidents": The Concerto for Prepared Piano and Chamber Orchestra of John Cage

John CageÂ’s Concerto for Prepared Piano and Chamber Orchestra (1950-51) holds a unique position within the composerÂ’s oeuvre as the first work based in part on chance-derived compositional procedures. Cage entered into such practice gradually, incrementally abandoning subjective taste and personal expression through the course of the work. Drawing from the philosophical framework provided by CageÂ’s "Lecture on Nothing" (1950) and "Lecture on Something" (c. 1951-52), this thesis explores the aesthetic foundations of the concerto and examines CageÂ’s compositional methodology throughout its three movements. Special attention is paid to the procedure underlying the first movement, whose analysis is based largely on the composerÂ’s manuscript materials for the work.
Date: December 1999
Creator: Boutwell, Brett N.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Implications of National Culture on American Knowledge Work Teams: A Model of a Collaborative Corporate Culture to Support Team Functioning (open access)

The Implications of National Culture on American Knowledge Work Teams: A Model of a Collaborative Corporate Culture to Support Team Functioning

In order to remain competitive, many American businesses implement team-based work strategies. In many cases, however, teams fail in American organizations, which may be in part due to a conflict between American culture and the cooperative environment necessary for teams to function effectively. By comparing the literature regarding American culture, challenges faced by teams, and then corporate culture, it becomes evident that there are aspects of American culture that pose challenges but also that an appropriate corporate culture can mediate some areas of incompatibility. A collaborative corporate culture can induce cooperation among employees without asking employees to work in a manner that is counterintuitive, thus gaining the benefits of teams.
Date: December 1999
Creator: Bussey, Jennifer Amy
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Precision Atomic Spectroscopy with an Integrated Electro- Optic Modulator and DBR Diode Laser at 1083nm

Access: Use of this item is restricted to the UNT Community
We have explored the use of recently developed high speed integrated electro optic modulators and DBR diode lasers as a tool for precision laser studies of atoms. In particular, we have developed a technique using a high speed modulator as a key element and applied it to the study of the fine structure of the 23P state of atomic helium. This state has been of long standing interest in atomic physics and its study has been the aim of several recent experiments using various precision techniques. We present our method and results, which will describe a new method for determining the fine structure constant, and lead to a precision test of atomic theory.
Date: December 1999
Creator: Castillega, Jaime
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Hospitality Students' Attitudes and Behavioral Intentions toward Learning and Using Computer Technology

Access: Use of this item is restricted to the UNT Community
Following Ajzen/Fishbein's 1980 Theory of Reasoned Action, influences of hospitality students' external variables (age, gender, university classification, and work experience) on computer attitudes, and relationships between computer attitudes and intentions to learn and use computers were tested. A sample of 412 hospitality students completed two measurements: Loyd/Gressard's 1984 Computer Attitude Scale, and Behavioral Intentions to Learn and Use Computers. Males and females had positive computer attitudes. Graduates had more positive computer attitudes. No interaction effect existed between gender and classification. No relationships existed between age and work experience on computer attitudes. Computer attitudes positively correlated with intentions to learn and use computers. Results supported the Theory of Reasoned Action. External variables partially influence attitudes and attitudes influence intentions.
Date: December 1999
Creator: Chuvessiriporn, Suttichai
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Exploration of Sculpture

Access: Use of this item is restricted to the UNT Community
The images that I sculpt deal with reflections of human traits. Wood lends itself to this endeavor, offering minimal resistance to manipulation. Keeping the origin and qualities of the material while manipulating it into another object is a statement within itself. Letting the wood do what it does naturally keeps the viewer in touch with the fact it is still just an object of nature. Wood does not make itself any less real because of the relationship of the sculpture to it as wood.
Date: December 1999
Creator: Coldewey, Charles
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Empowerment: The Paradigm for Success for the Nursing Homes of the 21st Century

Access: Use of this item is restricted to the UNT Community
For a workplace to be successful, it needs to have a higher morale, thus leading to higher quality of care for residents. For a workplace to be successful in empowerment, it must have developed strong teams, and everyone must work as a team and respect one another. The research for this paper focused on many issues. The most important part of my research came from a study of the nursing assistants at Jennings Hall (JH) in Garfield, Ohio. From the data received, I concluded that the two biggest problems in many nursing homes are lack of respect and lack of team-centered attitude.
Date: December 1999
Creator: Connorton, Margaret L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Narrative Herstory of Women's Studies at the University of North Texas (open access)

A Narrative Herstory of Women's Studies at the University of North Texas

In the late 1960's the academic field of Women's Studies was created to give women a more equal education and a more accurate reflection of their history and impact on society. At the University of North Texas the effort to implement Women's Studies was not begun seriously until the late 1980's. This paper covers the effort to establish Women's Studies at UNT. My thesis is that this has been a grassroots effort led by professors and students who succeeded not only in establishing Women's Studies but also in changing the face and feeling of the University, creating a more positive environment for women. The bulk of the paper is made up of narrative selections drawn from oral history interviews with key individuals.
Date: December 1999
Creator: Cook, Charles
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Comparative Mitochondrial DNA Sequence Diversity in Isolated and Open Populations of Southern Flying Squirrels

Access: Use of this item is restricted to the UNT Community
Three populations of Southern flying squirrels were studied in the Ouachita Mountains of Arkansas to assess the impact of population subdivision-due to island formation--on the population genetics of Glaucomys volans. One island, one mainland, and one open population were investigated. A 367 nucleotide hypervariable region of mitochondrial DNA was sequenced in individuals from each population. Individuals and populations were compared to assess relatedness. Higher sequence diversity was detected in the open and island populations. One island individual shared characters with both the island and mainland populations. Results support the hypothesis that the mainland population may have reduced gene flow. Also, the island population may have been originally founded by at least two maternal lineages.
Date: August 1999
Creator: Cook, Melaney Birdsong
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Preferential Strategies in Elliott Carter's String Quartet No. 2 (open access)

Preferential Strategies in Elliott Carter's String Quartet No. 2

For the purposes of expressive intent, Carter developed compositional strategies that possess qualities congruent with the musical language in his Second Quartet (1959). He employed strategies including tempo modulation, triple groupings, and large-scale ratios to assemble the musical discourse and to guide the listener's perception of large-scale continuity. I label these devices collectively as "preferential strategies" because it is Carter who selects certain pre-compositional ideas that organize musical material and demarcate structural locations. Tempo modulations that organize dual meters and triple groupings that interact in transitional and transformational ways demonstrate his concern with controlling the overall time continuity through local level organization. Large-scale ratio relations between nine interlocking sections of this four movement work illustrate how Carter employs a local strategy that projects a large-scale structure. Recognizing that Carter's ultimate compositional goal prioritizes temporal processes, these proposed preferred strategies articulate a convergence of musical elements.
Date: May 1999
Creator: Crafton, Elizabeth B.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Monitoring Watershed Health in the Upper Trinity River Basin, North Central Texas (open access)

Monitoring Watershed Health in the Upper Trinity River Basin, North Central Texas

This study conducts watershed analysis using biological and geo-spatial techniques. Incorporating landscape features with biological attributes has been shown to be an effective method of monitoring environmental quality within watersheds. In situ biomonitoring using the Asiatic Clam, Corbicula fluminea, habitat suitability, and water quality data were evaluated for their potential to describe ecological conditions in agricultural and urban areas within the Upper Trinity River watershed. These data were analyzed with GIS to identify effects of land use on ecological conditions. C. fluminea downstream of point source effluents was effective detecting in-stream toxicity. Ambient toxicity appears to have improved in the Trinity, although urban influences limit aspects of aquatic life. No association between habitat quality and land use was identified.
Date: May 1999
Creator: Csekitz, Jill Diane
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates

Access: Use of this item is restricted to the UNT Community
Traditional methods of teaching the laboratory course for Comparative Anatomy of the Vertebrates could be improved by applying current computer technology to construct an interactive, multimedial atlas of dissection. Five specimens used in comparative anatomy courses at most institutions were chosen as representative members of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer with Adobe Photoshop v. 5.0. The atlas was constructed from these images using Macromedia Authorware v. 4.0.3. Each image contains a series of interactive objects that display a highlight and descriptive text as the cursor passes over each object.
Date: August 1999
Creator: Curran, Anthony A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates

Access: Use of this item is restricted to the UNT Community
This interactive multimedia content is part of a Master's thesis regarding how traditional methods of teaching the laboratory course for Comparative Anatomy of the Vertebrates could be improved by applying current computer technology to construct an interactive, multimedial atlas of dissection. Five specimens used in comparative anatomy courses at most institutions were chosen as representative members of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer with Adobe Photoshop v. 5.0. The atlas was constructed from these images using Macromedia Authorware v. 4.0.3. Each image contains a series of interactive objects that display a highlight and descriptive text as the cursor passes over each object.
Date: August 1999
Creator: Curran, Anthony A., Jr.
Object Type: Interactive Resource
System: The UNT Digital Library
Development and Validity of the Teachers' Attitude, Comfort and Training Scale (TACTS) on Sexuality Education (open access)

Development and Validity of the Teachers' Attitude, Comfort and Training Scale (TACTS) on Sexuality Education

The purpose of the study was to design and validate an instrument designed to investigate teachers' attitudes in regard to adolescent sexuality education. Test development adhered to the guidelines of Aligna and Crocker. Cronbach alpha was performed on the entire instrument and determined the reliability to be .8003, thus the instrument was consistent in measuring the domain areas. A panel of experts assessed content validity of items. A principal component factor analysis and a Pearson's product moment correlation were used for construct validity. Teacher concerns about curriculum implementation, teacher comfort with the subject matter, course-specific teacher attitudes, teacher interest about curriculum content, and teacher attitudes toward sexuality were found to be the constructs of the TACTS.
Date: May 1999
Creator: D'Entremont, Laura S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Image and Identity at El Santuario de Chimayo in Chimayo, New Mexico (open access)

Image and Identity at El Santuario de Chimayo in Chimayo, New Mexico

El Santuario de Chimayo is a small community shrine that combines both native Tewa Indian and Christian traditions. This study focuses on the interaction between traditions through analysis of the shrine's two major artworks: a crucifix devoted to El Senor de Esquipulas (Christ of Esquipulas) and a statue of the Santo Nino (Holy Child). The shrine and its two primary artworks are expressions of the dynamic interaction between native and European cultures in New Mexico at the beginning of the nineteenth century. They frame the discussion of native and Christian cultural exchange about the relationships between religious images, how they function, and how they are interpreted.
Date: May 1999
Creator: DeLoach, Dana Engstrom
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Harbor: The Act of Autobiography

Access: Use of this item is restricted to the UNT Community
This written thesis accompanies a sixteen-minute documentary video, Harbor, in which the filmmaker explores her relationship with her father who has suffered a stroke. Detailed accounts of the pre-production, production and post-production of the video allow the reader to understand the challenging and rewarding process of making an autobiographical documentary. Theoretical issues are also discussed, including the validity, criticisms, artistic nature and ethical concerns of autobiographical filmmaking. The filmmaker stresses the universality of her story, and how, despite the film's very personal nature, it is applicable for anyone who has dealt with the illness and/or disability of a parent.
Date: August 1999
Creator: Doeren, Catherine Wallace
Object Type: Thesis or Dissertation
System: The UNT Digital Library