Degree Department
Degree Discipline
Degree Level
Country
Decade
Language
569 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 24 of
569
next
Scientific Considerations of Olestra as a Fat Substitute
Olestra is, a sucrose polyester, a noncaloric fat substitute, made from sucrose and several fatty acid esters. It has been approved by the FDA as a food additive used in preparing low-fat deep-frying foods such as savory snacks. Available literature on olestra was evaluated that had both positive and negative connotations. Clinical trials in numerous species of animals including humans were conducted to determine if olestra would affect the utilization and absorption of macro- and micronutrients; the effects of olestra on growth, reproduction, or its toxicity were also examined. The roles of olestra as a fat substitute, how it could effect on humans and the environment, and the potential impacts from its use in large amounts were assessed. Olestra can be removed from the environment by aerobic bacteria and fungi which may be isolated from activated sludge and soils.
Date:
December 1999
Creator:
Rattagool, Kullakan
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
System:
The UNT Digital Library
'...and one of time.': A Composition for Full Orchestra with Narration
Access:
Use of this item is restricted to the UNT Community
‘...and one of time.' is a reinterpretation of a small musical moment from Philip Glass' opera, Einstein on the Beach, centered around the phrase "Berne, Switzerland 1905." This reinterpretation is realized through the use of several different compositional techniques including spectral composition, micropolyphony and dodecaphony, as well as the application of extra-musical models developed by Alan Lightman, John Gardner, Italo Calvino and Albert Einstein.
Date:
December 1999
Creator:
Rinker, John Thomas
System:
The UNT Digital Library
Oxygen Uptake Kinetics in Severe Intensity Exercise
The purpose of this study was to describe mathematically the oxygen uptake kinetics during cycle ergometry, and to examine the effect of intensity on the kinetic responses within the severe domain. Sixteen volunteers performed a series of exercise tests at a range of intensities selected to elicit fatigue in ~3 to 10 min. A simple mono-exponential model effectively described the response across all intensities. There was a positive correlation between the response time and the time to fatigue, demonstrating that the maximal oxygen uptake was achieved faster at higher intensities within the severe domain. Models incorporating two components effectively described the responses only in tests lasting 8 min or more. It was concluded that there is a second, slow component in the oxygen uptake response only at the lower intensities within the severe domain.
Date:
May 2000
Creator:
Blumoff, Sonja
System:
The UNT Digital Library
Integration of field-based analysis of plant community dynamics with quantitative analysis of landscape change in the Ray Roberts Lake area, 19871997
This study focused on the effectiveness of integrating traditional plant community analyses with landscape ecological analyses based on remotely sensed data. A temporal analysis of plant community diversity was conducted for major plant communities of the Ray Roberts Lake area using transect monitoring data collected between 1987 and 1997. Landscape analyses were performed with FRAGSTATS*ARC using classified SPOT satellite imagery for 1987 and 1997. Although the methodology developed in this work was exploratory, it was found that characterizing the dynamics of major plant communities in the study area produced a more effective and insightful analysis of Ray Roberts Lake area landscape dynamics.
Date:
May 2000
Creator:
McDonough, Theresa J.
System:
The UNT Digital Library
The Effect of Mode and Intensity on Vo2 Kinetics in the Severe Intensity Domain
The purpose of this study was to evaluate the effect of mode and intensity on VO2 kinetics in the severe intensity domain. Seventeen participants completed 3-7 tests each on a cycle ergometer and treadmill. For each test, Tfatigue, VO2max, Tmean response, VO2GAIN, TVO2max and T@VO2max were determined. Linear regression techniques were used to describe the relationship between TVO2max and Tfatigue . VO2max values were higher in running. The VO2 response profile was faster for running than cycling and faster at higher intensities. The faster VO2 response in running may be associated with larger active muscle mass or differences in muscle activation patterns. The faster response at higher intensities may suggest that VO2 response is driven by O2 demand.
Date:
May 2000
Creator:
Updyke, Rhonda S.
System:
The UNT Digital Library
Depression, Anxiety, Self-Esteem, and Coping in Children and Adolescents Newly Diagnosed with Cancer and Children and Adolescents on Cancer Treatment for a Period of Seven Months or Longer
Access:
Use of this item is restricted to the UNT Community
Differences in self-reported depression, anxiety, self-esteem, and coping were evaluated in two groups of pediatric oncology patients: newly diagnosed (less than six months post-diagnosis) (n=5) and patients on cancer treatment for seven months or longer (n=5). Participants (6 males, 4 females, ages 7-17 years) completed the Children's Depression Inventory (CDI), the State-Trait Anxiety Inventory for Children (STAIC), and the Culture-Free Self-Esteem Inventory (CFSEI-2); nine of the ten participants discussed in a semi-structured interview their personal experiences and feelings about having cancer. Although the newly diagnosed group had a higher mean score on the CDI than the 7 months or greater group, the difference was not significant (p = .054). The newly diagnosed group also had higher mean state and trait anxiety scores on the STAIC, indicating higher anxiety levels, and a slightly lower CFSEI-2 mean score, indicating slightly lower self-esteem than the 7 months or greater group, but differences were not at a statistically significant level (p>.05).
Date:
May 2000
Creator:
Jones, Tracy L.
System:
The UNT Digital Library
Regional Accent Discrimination in Hiring Decisions: A Language Attitude Study
Evidence is presented to support the notion that US regional accents influence decisions in the hiring process. Fifty-six people who hire for a variety of corporations participated in a computerized survey, during which they listened to speakers from regions of the US reading the same passage. Respondents judged the speakers on personal characteristics commonly considered in hiring decisions, attempted to identify the speakers' regions, and selected job categories for each speaker, in addition to providing information about their own linguistic security. Results indicate: 1) judgments based on regional accents strongly correlate to selection of job categories, 2) respondents were not able to identify regional accents correctly, and 3) negative judgments were assigned to the speakers of accents that were correctly identified.
Date:
August 2000
Creator:
Markley, E. Dianne
System:
The UNT Digital Library
Teacher Training: An Examination of Skill Acquisition, Generalization, and Increases in Child Appropriate Behavior
The effects of a training package (modeling, role-playing, and feedback) were evaluated using a multiple baseline across skill areas. Two trainers taught two teachers to use basic intervention skills that included components of both discrete trial teaching (DTT) and the Natural Language Paradigm (NLP). Training occurred in the context of one task. Generalization was assessed with two untrained tasks. Teachers' responses in the target task increased following training, as did appropriate responding from the child. Some generalization of the teaching skills occurred. Teachers were instructed to generalize acquired skills as a possible method to promote generalization. The results of these findings and implications for training of ABA providers are discussed.
Date:
August 2000
Creator:
Sawyer, Rebecca Jo Moore
System:
The UNT Digital Library
We've Only Just Begun: A Black Feminist Analysis of Eleanor Smeal's National Press Club Address
The voices of black women have traditionally been excluded from rhetorical scholarship, both as a subject of study and as a methodological approach. Despite the little attention black feminist thought has received, black women have long been articulating the unique intersection of oppressions they face and have been developing critical epistemologies.This study analyzes the National Press Club address given by NOW President Eleanor Smeal utilizing a black feminist methodological approach. The study constructs a black feminist theory for the communication discipline and applies it to a discursive artifact from the women's liberation movement. The implications of the study include the introduction of a new methodological approach to the communication discipline that can expand the liberatory reach of its scholarship.
Date:
August 2000
Creator:
Tate, Tara L.
System:
The UNT Digital Library
Keyboard Innovation: Harry Partch's Contributions
Access:
Use of this item is restricted to the UNT Community
"Harry Partch's Keyboard Innovation" is a computer-assisted demonstration that introduces the tuning system used primarily by the twentieth-century American composer, Harry Partch. The multimedia product was developed in Director 6.0, and it includes sound and video clips from CDs and videocassettes of Partch's works produced by Phillip Blackburn and distributed by the American Composers Forum. The content of the demonstration involves a 43-tone microtonal tuning system and its application in the music literature. This demonstration will discuss the chronological order in which these prototypes were developed and also includes samples of the tuning of notes in Partch's scale that the novice can experiment with interactively. These tones were synthesized using the Csound scores shown in Appendix B. Materials for this demonstration are based on Harry Partch's Genesis of a Music.
Date:
August 2000
Creator:
Koh,Wee Lay
System:
The UNT Digital Library
Maintaining behavior in a child with autism using a previously neutral stimulus, a remote control tactile stimulus, as the consequence
Access:
Use of this item is restricted to the UNT Community
Few studies have investigated methods for establishing neutral stimuli as conditioned reinforcers in human subjects. Conditioned reinforcers, however, can alleviate some of the problems encountered in applied behavior analytic (ABA) therapy for children with autism, such as satiation and suitability of reinforcers for specific environments. A series of reversals evaluated the effects of a conditioning procedure involving pairing a neutral stimulus, the remote control stimulus (RCT), with an identified reinforcer. Phase 1 demonstrated that the RCT was neutral. In Phase 2, alternating pairing and testing conditions were run. During testing the effects of pairing were evaluated by the effectiveness of the RCT in maintaining a response in the absence of a previously available reinforcer (extinction test) and in increasing a new response over a baseline level (learning test). Results from the extinction test suggest that under some pairing conditions the RCT can acquire properties of a reinforcer.
Date:
August 2000
Creator:
Wheat, Leigh Ann Stiles
System:
The UNT Digital Library
By Air Power Alone: America's Strategic Air War in China, 1941-1945
During World War II, the Army Air Force waged three strategic air offensives in and from China against Japan. At first, the Flying Tigers and 10th Air Force constituted the whole of American aid to China, but the effort soon expanded. Supported by Chiang Kai-shek, Claire Chennault and his 14th Air Force waged an anti-shipping campaign, to which the Japanese Imperial Army responded with Operation Ichigo and against which Joseph Stilwell accurately warned. 20th Bomber Command used B-29s to wage Operation Matterhorn, failed, and later conducted PACAID missions. 14th Air Force then waged a counterproductive transportation campaign as The Pacific War, also known as the Greater East Asian War, ended. Events in the China-Burma-India and China Theaters provide lessons in logistics, targeting, training, and air-ground cooperation that are applicable in the post-Cold War era.
Date:
May 2001
Creator:
Jahnke, Todd Eric
System:
The UNT Digital Library
A Stylistic Analysis of American Indian Portrait Photography in Oklahoma, 1869-1904
This thesis studies the style of Native American portrait photographs of William S. Soule (1836-1908), John K. Hillers (1834-1925), and William E. Irwin (1871-1935), who worked in Oklahoma from 1869 to 1904. The examination of the three men's work revealed that each artist had different motivations for creating Native American portrait photographs, and a result, used a distinct style. However, despite the individual artistic styles, each artist conformed to Native American stereotypes common during the nineteenth-century. The thesis includes a discussion of the history of the area, photographer biographies, a stylistic analysis of the photographs, and how the images fit into American Indian stereotypes.
Date:
May 2001
Creator:
Nelson, Amy
System:
The UNT Digital Library
The Changing Face of Ralph Lauren's Advertising: A New Lifestyle Image and Increased Nudity
Advertising, which is an important sales tool for brands to the masses, may produce lasting impressions of a company and its products. These impressions rely on a consistent message over time to maintain a brand's image. This study examines how Ralph Lauren's advertising images have changed from a country club lifestyle image to urban/hip. In addition, the study examines the increased use of nudity and sexual imagery in Lauren's advertising. The findings were obtained by content analyzing all Ralph Lauren advertisements appearing in Gentlemen's Quarterly magazine from 1980 to 2000 (N=283). The study finds that Ralph Lauren lifestyle images have become more urban/hip, and that Lauren's advertising is utilizing more nudity, sexual interaction, and homoerotic imagery. By examining Ralph Lauren's shifting brand image via its advertising, this study contributes to a greater understanding of the connection between advertising and a company's brand image.
Date:
August 2001
Creator:
LaCaze, Tray
System:
The UNT Digital Library
Problem-oriented approach to criminal investigation: implementation issues and challenges
As a proactive, information-based policing approach, problem-oriented policing emphasizes the use of crime analysis techniques in the analysis of the underlying causes of the problems that police deal with. In particular, analysis applications can be powerful tools for criminal investigation, such as crime reconstruction, profiling, IAFIS, VICAP, and CODIS. The SARA Model represents a problem-solving strategy of problemoriented policing. It aims to address the underlying causes of the problems and create substantial solutions. However, implementing problem-oriented policing requires a significant change in both the philosophy and structure of police agencies. Not only American policing but also the Turkish National Police should consider problem-oriented policing as an alternative approach for solving criminal activities.
Date:
August 2001
Creator:
Ozeren, Suleyman
System:
The UNT Digital Library
The Correctional Orientation of Juvenile Facility Directors
Over the last 30 years, the juvenile justice system and juvenile correctional ideology shifted to become more punitive in nature. However, studies examining this shift are lacking in the literature. The present study will attempt to assess what correctional ideology, rehabilitative or punitive, is dominant within juvenile corrections by conducting a national survey to juvenile facility directors. This study will be based on prior literature, most of which has focused upon line staff in an adult correctional setting. From this prior literature, more specifically from the work of Cullen et al. (1989), scales will be created to determine the correctional orientation of the key administrators in juvenile facilities. This will allow us to assess whether the correctional ideology driving the juvenile system has in fact become punitive. The findings from this study have the opportunity to alter the current status quo in juvenile corrections.
Date:
August 2001
Creator:
Sifuentes-Hammer, Amy
System:
The UNT Digital Library
Supply chain relationships in apparel retail product development.
The purpose of this study was to investigate supply chain relationships within the apparel retail product development process under a single site case study setting. Relationship determinants (i.e. drivers, facilitators and barriers) that facilitated or impeded the degree of collaborative efforts between the retailer and the supply chain members were identified. As the retailer integrated its product development process with its suppliers, a triangular relationship was formed between the retailer, the overseas manufacturers, and the designated suppliers. The study found that the retailer sought operational efficiency in its business relationships with supply chain members, but continued to seek long-term commitment in these relationships to establish a virtual vertical company.
Date:
May 2002
Creator:
Lee, Daton
System:
The UNT Digital Library
Pilgrim Carnival
This thesis explores an experimental music approach to writing autobiography. As a composition, Pilgrim Carnival took place as a travelling series of events. The central event was a sound installation for a blindfolded audience. This essay is a description of that series of events as well as a discussion of similar precedents in interdisciplinary art. Beginning with Luigi Russolo and Marcel Duchamp, aspects of autobiography are examined in both noise music and the concept of the ready-made artwork. Body Art of the 1970s, particularly the work of Marina Abramovic, is also tied into the idea of the ready-made artwork as an explicitly autobiographical example. The hybrid form of Pilgrim Carnival and the concept of ready-made autobiographical music create ongoing potential for new work.
Date:
August 2002
Creator:
House, Kayli
System:
The UNT Digital Library
A comparison of moral reasoning and moral orientation of American and Turkish university students.
This study compares American and Turkish male and female university students in terms of moral orientation (justice and care) and Kohlberg's stages of moral reasoning to examine the influence of culture and gender on moral development. A total of 324 undergraduate students between the ages of 18 and 46 are administered the Defining Issues Test (DIT) and the Measure of Moral Orientation (MMO). Statistical analyses indicate Turkish participants reflect more postconventional reasoning, while American participants reflect more conventional reasoning, particularly Stage 4 reasoning. Analyses also reveal Turkish participants reflect significantly more care orientation and more justice orientation compared to American participants. These findings are discussed in terms of cultural and gender influences in moral decision-making.
Date:
August 2002
Creator:
Kuyel, Nilay Ozkan
System:
The UNT Digital Library
Temperature dependent rheology of surfactant-hydroxypropyl cellulose solutions.
The rheology of 1-8% hydroxypropyl cellulose (HPC) solutions has been studied in the temperature range of 20-45 degrees Celsius. The results showed that the relative viscosity at each HPC concentration decreases with increasing temperature. The relative viscosity decreases drastically at about 43 degrees Celsius due to a phase transition. The influence of anionic surfactant, sodium dodecylsulfate (SDS), induced gelation of a 2% HPC solution. The HPC solutions gelled at surfactant SDS concentrations ranging from 0.4 to 1.0 critical micelle concentration (CMC). The gelation of the HPC/SDS hydrogel is explained in the surfactant SDD - bridged HPC linear polymer chains. The complex viscosity - concentration profile was determined below the CMC of the SDS - water pair. The peak itself was a function of frequency indicating the presence of two relaxation times within the gelled network.
Date:
December 2002
Creator:
Snively, C. Todd
System:
The UNT Digital Library
Framing Femininity as Insanity: Representations of Mental Illness in Women in Post-Classical Hollywood
From the socially conservative 1950s to the permissive 1970s, this project explores the ways in which insanity in women has been linked to their femininity and the expression or repression of their sexuality. An analysis of films from Hollywood's post-classical period (The Three Faces of Eve (1957), Lizzie (1957), Lilith (1964), Repulsion (1965), Images (1972) and 3 Women (1977)) demonstrates the societal tendency to label a woman's behavior as mad when it does not fit within the patriarchal mold of how a woman should behave. In addition to discussing the social changes and diagnostic trends in the mental health profession that define “appropriate” female behavior, each chapter also traces how the decline of the studio system and rise of the individual filmmaker impacted the films' ideologies with regard to mental illness and femininity.
Date:
May 2007
Creator:
Kretschmar, Kelly
System:
The UNT Digital Library
An Analysis of Sample Duration in a Parent Training Program.
Although several guidelines are available for designing observational procedures in both basic and applied settings, few researchers have experimentally examined and compared different direct observation methods. Such methods may have a direct impact on practitioners' ability to effectively assess strengths and challenges, set treatment goals, adjust intervention procedures, and monitor progress. The current study compared 1 and 5 min observations to 10 min observations throughout baseline and intervention phases of a parent training program for toddlers with autism. Results showed similarities with regards to variability, level, and trend in the 5 and 10 min data samples; however, clear differences were seen in the 1 min data sample, which typically showed very low occurrences of responding and displayed steady and flat trends. The findings have implications for the development of time-efficient direct observation procedures utilized in parent training programs for children with autism.
Date:
May 2007
Creator:
Laino, Kathleen S.
System:
The UNT Digital Library
Toward a systematic evaluation of evaluating favorable conditions in a parent training program: The pursuit of happiness.
Research has shown that parents of children with disabilities, such as autism, experience significantly higher stress levels than parents of typically developing children. It has been suggested that parent education programs, in particular naturalistic communication training, will reduce parental stress. Most of the literature in this area has relied on parental reports and has only focused on decreasing stress and has not directly addressed increasing alternate feelings, such as happiness. In different but related areas of behavior analysis, an emphasis has been placed on the importance of happiness as a quality of life indicator and that the development of multileveled assessment is sorely needed. This study was designed to analyze one set of measures within a data-based intervention program for parents of toddlers with autism. The Family Connections Project (FCP) is a parent training project designed to enhance the quality of relationships for families who have toddlers with autism. Within this project parents are taught to identify and arrange opportunities to interact with their children in ways that will increase motivation and social responsivity. This study looked at the collateral effects of this training program and investigated if FCP affected the relationship between parents and their toddlers; of particular interest …
Date:
August 2007
Creator:
Broome, Jessica L.
System:
The UNT Digital Library