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Results:
1 - 24 of
36,238
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[The Ebony Nutcracker Photograph 2]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 17]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 1]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 20]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 8]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 12]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 15]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[The Ebony Nutcracker Photograph 9]
Photograph taken at a performance of The Ebony Nutcracker.
Date:
December 10, 2000
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
The PRO Program: One District's Experience with Decentralizing Staff Development
This article examines one district's staff development plan that has successfully engaged teachers and administrators in designing and implementing relevant programs that make a positive difference for schools and students.
Date:
April 2000
Creator:
Huffman, Jane B.; Caldwell, Dottie & Taber, Katherine L.
Object Type:
Article
System:
The UNT Digital Library
On Objects and Affections: Contemporary Representations of the Gay Man/Straight Woman Dyad in Popular Film and Television
This project explores the representational strategies used to depict a gay male/straight female dyad across a variety of popular media. The study problematizes and critically evaluates how the narrativization of the dyad both challenges and reinforces stereotypes of gay men and at the same time circulates a troubling image of femininity in the figure of the straight woman. This line of argument is extended to the context of "Lifestyle Television" to demonstrate how the dyad implicitly structures two particular programs. It is suggested that the prevalence of the dyad is in part indicative of an assimilation of a particular gay identity into mainstream culture. The ideological implications of the dyad are discussed throughout this thesis.
Date:
December 2000
Creator:
Pillion, Owen L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Electrochemical Therapy on Colon-25 Tumors in Balb-C Mice
The purpose of the research was to treat immunodeficient mice, implanted with colon-25 tumors, with continuous and interrupted electrochemical therapy (ECT). ECT involves the placement of two electrodes, an anode near the center of the tumor and a cathode into the tumor periphery. A constant voltage is applied across the electrodes for a given period of time. The data showed that the interrupted and continuous ECT resulted in a decrease in mean tumor growth as compared to that of the sham controls. The histology of both ECT groups showed an increase presence of large vacuoles, randomly distributed tumor cells as well as the presence of "crevicing" in the medullary tissue. The differential leukocyte counts showed a distinct neutrophilia and lymphopenia in all groups at day 20 post tumor implantation. The results from the experimental groups appeared to support the findings of previous investigators.
Date:
December 2000
Creator:
Gillen, Aric
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of the Density of Reinforcement on the Maladaptive Behaviors of a Child With Autism
The present study consists of two experiments that analyze the effects of high and low densities of reinforcemnt on the maladaptive behaviors of a 9 year old girl with autism. The first experiment investigates the isolated effects of density of reinforcement on the frequency of maladaptive behaviors during a motor imitation teaching task. High densities of reinforcement produced fewer occurrences of maladaptive behavior than low densities of reinforcement. Experiment 2 analyzes the effects of density of reinforcement during the same teaching tasks as in experiment 1 on maladaptive behavior, task accuracy, prompt resistance, and language. Maladaptive behavior did not recur during experiment 2. High density of reinforcement conditions during the second experiment showed a positive effect on the accuracy of responding and compliance with prompts.
Date:
December 2000
Creator:
Motiejunas, Kristina M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Impact of Conservative Protestantism upon The Time Fathers Spend with Their Children
This research was concerned with the possible effects that religion, especially conservative Protestantism, has upon the performance of fatherhood. The influence of religion was assessed using the religious beliefs reported by fathers. The performance of fatherhood focused on the amount of time fathers spent meeting the physical needs of their young children. This research hypothesized that conservative Protestant fathers would spend more time meeting their children's physical needs than other Protestant fathers. Also hypothesized was that the level of conservative Protestant beliefs held by fathers is positively related to the proportion of time they spent meeting the physical needs of their children out of the total time spent by fathers and mothers combined. Finally, it was hypothesized that the level of conservative Protestant beliefs held by fathers was positively related to their membership in conservative religious denominations. In order to test whether conservative Protestantism has an effect upon the amount of time that fathers spend meeting the physical needs of their young children, this study will used data from the first wave of the National Survey of Families and Households (NSFH), completed in 1988. Regression analysis was used to test the first two hypotheses and crosstabulation analysis was used to …
Date:
December 2000
Creator:
Miller, Mark Sheldon
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Dynamic Conductance of Carbon Nanotubes
Article on dynamic conductance of carbon nanotubes.
Date:
March 27, 2000
Creator:
Roland, Christopher; Buongiorno Nardelli, Marco; Wang, Jian & Guo, Hong
Object Type:
Article
System:
The UNT Digital Library
Faculty Use of the World Wide Web: Modeling Information Seeking Behavior in a Digital Environment
There has been a long history of studying library users and their information seeking behaviors and activities. Researchers developed models to better understand these information seeking behaviors and activities of users. Most of these models were developed before the onset of the Internet. This research project studied faculty members' use of and their information seeking behaviors and activities on the Internet at Angelo State University, a Master's I institution. Using both a quantitative and qualitative methodology, differences were found between tenured and tenure-track faculty members on the perceived value of the Internet to meet their research and classroom information needs. Similar differences were also found among faculty members in the broad discipline areas of the humanities, social sciences, and sciences. Tenure-track faculty members reported a higher average Internet use per week than tenured faculty members. Based on in-depth, semi-structured interviews with seven tenured and seven tenure-track faculty members, an Internet Information Seeking Activities Model was developed to describe the information seeking activities on the Internet by faculty members at Angelo State University. The model consisted of four basic stages of activities: "Gathering," "Validating," "Linking" with a sub-stage of "Re-validating," and "Monitoring." There were two parallel stages included in the model. …
Date:
December 2000
Creator:
Fortin, Maurice G.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Conformational Selection During Weak Binding at the Actin and Myosin Interface
Article on conformational selection during weak binding at the actin and myosin interface.
Date:
September 2000
Creator:
Xu, Jin & Root, Douglas D.
Object Type:
Article
System:
The UNT Digital Library
Teachers' Use of Children's Literature, Mathematics Manipulatives, and Scaffolding to Improve Preschool Mathematics Achievement: Does It Work?
The primary purpose of this study was to determine if the implementation of an intervention involving teachers' use of children's literature, related storybook manipulatives, and a scaffolding (LMS) approach to learning would improve preschool children's mathematics test scores. Additionally, the LMS approach was examined to determine whether teachers' perceptions of their effectiveness in mathematics instruction changed from the beginning to the end of the study. The subjects of the study included 60 preschool-aged children and six teachers from two child care centers. The preschool teachers participated in either a control or experimental condition (the LMS approach) in their daily mathematics instruction with their preschool children. The researcher tested the children using the Test of Early Mathematics Ability and an abbreviated version of the Stanford-Binet Intelligence Scale. The study was based on two main research questions. The first question asked if there was a difference in the Test of Early Mathematics Ability total posttest scores between children in the literature-manipulatives-scaffolding intervention group and children in the control group after assuring equivalency of the two groups. The second question addressed if preschool teachers believed they were more effective in their mathematics instruction after implementing the LMS approach with young children. The answer …
Date:
December 2000
Creator:
Bennett, Tisha L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Thresholds in avian communities at multiple scales: Relationships between birds, forests, habitats, and landscapes in the Ray Roberts greenbelt, Denton
Environmental management agencies make efforts to reduce pollution loading in streams and rivers by promoting vegetated buffer zones between human activity and water. Most of these efforts do not mesh water quality-based buffer zone width requirements with conservation and wildlife values, specifically, the use of these riparian forest corridors for wildlife dispersal between habitats in highly fragmented landscapes. Forest interior birds are of the most concern to management in riparian forests due to their population declines across much of their breeding range. This dissertation investigates the role that landscape-level and habitat-level factors play on the presence of breeding birds in riparian forests, particularly the landscape and habitat factors that are influenced by human-caused fragmentation. This study describes research at the Ray Roberts Greenbelt, Denton, Texas, that explores the relationships between the landscape and forest habitats of the Greenbelt with its breeding bird community. The major findings of this study are that bird communities in the corridor forests are associated with a greater array of factors than are bird communities in patches, suggesting that the birds of patch forests are somewhat insulated from landscape-scale effects. Also, habitat values can be maintained in corridors, but there does not seem to be a …
Date:
December 2000
Creator:
Barry, Dwight
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Feigning Cognitive Deficits on Neuropsychological Evaluations: Multiple Detection Strategies
Individuals undergoing forensic neuropsychological evaluation frequently stand to gain in some manner if neurocognitive dysfunction is diagnosed. As a result, neuropsychologists are customarily asked to test for neurocognitive feigning during the assessment. The current study employed an analogue design with a clinical comparison group to examine the utility of the TOCA (Rogers, 1996) as a measure of feigned neurocognitive impairment. Two groups of simulators (one cautioned about the presence of detection strategies and one not cautioned) were compared to clinical and normal control groups. Fourteen scales were developed based on five detection strategies: symptom validity testing, performance curve, magnitude of error, response time, and floor effect. Each was employed during both verbal and nonverbal tasks. Significant differences were revealed among groups when subjected to ANOVA. Classification rates from subsequent utility estimates and discriminant function analyses on the scales ranged from 58.8% to 100%. Combining strategies yielded a classification rate of 95.7%. The effect of cautioning simulators was modest; however, a trend was noted on some scales for cautioned simulators to appear less obviously impaired than noncautioned. Although the results require crossvalidation, preliminary data suggest that the TOCA is a sensitive and specific measure of feigned neurocognitive performance. Strengths and weaknesses …
Date:
December 2000
Creator:
Bender, Scott D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
High-Temperature Corrosion of Aluminum Alloys: Oxide-Alloy Interactions and Sulfur Interface Chemistry
The spallation of aluminum, chromium, and iron oxide scales is a chronic problem that critically impacts technological applications like aerospace, power plant operation, catalysis, petrochemical industry, and the fabrication of composite materials. The presence of interfacial impurities, mainly sulfur, has been reported to accelerate spallation, thereby promoting the high-temperature corrosion of metals and alloys. The precise mechanism for sulfur-induced destruction of oxides, however, is ambiguous. The objective of the present research is to elucidate the microscopic mechanism for the high-temperature corrosion of aluminum alloys in the presence of sulfur. Auger electron spectroscopy (AES), low energy electron diffraction (LEED), and scanning tunneling microscopy (STM) studies were conducted under ultrahigh vacuum (UHV) conditions on oxidized sulfur-free and sulfur-modified Al/Fe and Ni3Al(111). Evaporative deposition of aluminum onto a sulfur-covered iron surface results in the insertion of aluminum between the sulfur adlayer and the substrate, producing an Fe-Al-S interface. Aluminum oxidation at 300 K is retarded in the presence of sulfur. Oxide destabilization, and the formation of metallic aluminum are observed at temperatures > 600 K when sulfur is located at the Al2O3-Fe interface, while the sulfur-free interface is stable up to 900 K. In contrast, the thermal stability (up to at least 1100 …
Date:
December 2000
Creator:
Addepalli, Swarnagowri
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Role of Intelligent Mobile Agents in Network Management and Routing
In this research, the application of intelligent mobile agents to the management of distributed network environments is investigated. Intelligent mobile agents are programs which can move about network systems in a deterministic manner in carrying their execution state. These agents can be considered an application of distributed artificial intelligence where the (usually small) agent code is moved to the data and executed locally. The mobile agent paradigm offers potential advantages over many conventional mechanisms which move (often large) data to the code, thereby wasting available network bandwidth. The performance of agents in network routing and knowledge acquisition has been investigated and simulated. A working mobile agent system has also been designed and implemented in JDK 1.2.
Date:
December 2000
Creator:
Balamuru, Vinay Gopal
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Behavioral Economic Analysis of Different Reinforcers: Sound-Clips Versus Points Exchangeable for Money
Human operant studies frequently use points exchangeable for money as reinforcers. Some studies employ more immediately consumable reinforcers to emulate properties of food reinforcers. This study examined demand for points/money and for sound-clips to compare their economic characteristics. Across four participants, demand was often higher and less elastic for points/money than for sounds. During subsequent exposures at each response requirement, demand for sounds often decreased to a greater degree than demand for points/money. Thus, sound-clips seem less durable than points/money across prices and across repeated exposure to the same price. Response rates for points/money were often higher than for sounds, suggesting that reinforcers that generate higher response rates may be less elastic than reinforcers that generate lower response rates.
Date:
December 2000
Creator:
Alvey, Debi A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Thematic Apperception Test: The relationship between scored fanasy aggression and aggressive behavior
This study attempted to determine the relationship between fantasy aggression and behavioral aggression, and whether fantasy aggression measured by the Thematic Apperception Test is related to behavioral aggression. Participant TAT protocols from psychology clinic files were scored for fantasy aggression, and these scores were correlated with self-reported presence or absence of behavioral aggression. The scoring system used was a blend of popular aggression scales used in the 1960s and newer theory. Other variables that were examined were story length and gender in relation to the measured amount of fantasy and behavioral aggression.
Date:
December 2000
Creator:
Fabrick, Joanne Madeline
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Jules Massenet's Musical Prosody Focusing on His Eight Song Cycles And A Collection, Expressions Lyriques: A Lecture Recital, Together with Recitals of Selected Works of W. A. Mozart, F. Schubert, C. Debussy, R. Strauss, D. Argento, V. Bellini, J. Marx, W. Walton, C. Gounod, A. Scarlatti, G. Fauré, J. Rodrigo, H. Wolf, and Others
Jules Massenet's mélodies feature a distinct vocal treatment regarding musical prosody through his eight song cycles, including Poëme d'Avril, Poëme Pastoral, Poëme du Souvenir, Poëme d'Amour, Poëme d'Hiver, Poëme d'un Soir, and Quelques Chansons Mauves, and a collection, Expressions Lyriques. These mélodies show the influence of the trend of salon music and the high-level poetry from the poetic movements of romanticism, Parnassianism, and symbolism. This study deals with Massenet's mélodies relating to the prosody idea, which is conspicuous in his vocal treatment. His melodic styles feature four distinct aspects of vocal treatment including lyrical, recitative or parlando, melodramatic, and déclamation rhythmée, and represent the idea of musical prosody of phonetic, syntactic, and semantic aspects. Massenet's other musical idioms such as harmony, form, and piano treatment, are also closely related to the prosody matter as a semantic aspect, reinforcing the poetic mood and content. In this study, each melodic style related to French versification is examined in detail. The musical analysis regarding the other musical idioms on selected examples presents the semantic feature of prosody idea. The brief review of French versification and opinions regarding the performance are included. Massenet's contribution to the genre of mélodie, with the prose melody and …
Date:
December 2000
Creator:
Chae, Eunhee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library