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  Partner: UNT Libraries
 Decade: 2000-2009
The Effects of Extinction on Human Performance Following Exposure to Fixed Ratio Schedules of Reinforcement

The Effects of Extinction on Human Performance Following Exposure to Fixed Ratio Schedules of Reinforcement

Date: May 2000
Creator: Anderson, Richard L.
Description: This experiment examined the effects of extinction on rate of responding and several topographical and temporal measures in adult humans. Three college students were trained to type the sequence 1•5•3 on a numeric keypad on a computer. The subjects were exposed to different fixed-ratio schedules of reinforcement (FR1, FR 5, and FR10 respectively) and extinction. Subjects displayed typical schedule performances during the maintenance phase of the experiment. During extinction the performances were disrupted, they showed a "break and run" pattern and a general decrease in responding. Also, new topographical and temporal patterns emerged. These data are consistent with those reported for non-human species and special human populations.
Contributing Partner: UNT Libraries
An Analytical Study of the Variations on the Theme of Paganini's Twenty-fourth Caprice, Op. 1 by Busoni, Friedman, and Muczynski

An Analytical Study of the Variations on the Theme of Paganini's Twenty-fourth Caprice, Op. 1 by Busoni, Friedman, and Muczynski

Date: May 2000
Creator: Ahn, Kwang Sun
Description: The purpose of this study is to analyze sets of variations on Paganini's theme by three twentieth-century composers: Ferruccio Busoni, Ignaz Friedman, and Robert Muczynski, in order to examine, identify, and trace different variation techniques and their applications. Chapter 1 presents the purpose and scope of this study. Chapter 2 provides background information on the musical form "theme and variations" and the theme of Paganini's Twenty-fourth Caprice, Op. 1. Chapter 2 also deals with the question of which elements have made this theme so popular. Chapters 3,4, and 5 examine each of the three sets of variations in detail using the following format: theme, structure of each variation, harmony and key, rhythm and meter, tempo and dynamics, motivic development, grouping of variations, and technical problems. Chapter 6 summarizes the findings from this study and attempts to compare those elements among the three variations. Special attention is given to the application of the motivic cells, which are drawn from the original Paganini theme, in the development of succeeding variations. This study shows how these motivic cells contribute to the construction of new motives and melodies in each variation. Additionally, this study attempts to examine each composer's efforts in expanding variation procedure ...
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Infinite Planar Graphs

Infinite Planar Graphs

Date: May 2000
Creator: Aurand, Eric William
Description: How many equivalence classes of geodesic rays does a graph contain? How many bounded automorphisms does a planar graph have? Neimayer and Watkins studied these two questions and answered them for a certain class of graphs. Using the concept of excess of a vertex, the class of graphs that Neimayer and Watkins studied are extended to include graphs with positive excess at each vertex. The results of this paper show that there are an uncountable number of geodesic fibers for graphs in this extended class and that for any graph in this extended class the only bounded automorphism is the identity automorphism.
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Beyond the Human Voice: Francis Poulenc's Psychological Drama La Voix humaine (1958)

Beyond the Human Voice: Francis Poulenc's Psychological Drama La Voix humaine (1958)

Date: May 2000
Creator: Beard, Cynthia C.
Description: Francis Poulenc's one-character opera La Voix humaine (1958), a setting of the homonymous play by Jean Cocteau, explores the psychological complexities of an unnamed woman as she experiences the end of a romantic relationship. During the forty-minute work, she sings in a declamatory manner into a telephone, which serves as a sign of the unrevealed man at the other end. Poulenc uses musical motives to underscore the woman's changing emotional states as she recalls her past relationship. The musical dramaturgy in this work resignifies Debussy's impressionist symbolism by collapsing devices used in Pelléas et Mélisande in a language that shifts between octatonicism, chromaticism, harmonic and melodic whole tone passages, and diatonicism. This late work recontextualizes elements in Poulenc's Dialogues des Carmélites (1953-56), and the end of the opera provides a theme for his Sonate pour Clarinet et Piano(1962), as Poulenc reflects on his youthful encounters with Cocteau, Erik Satie, and Les Six.
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Heart of the Fathers, for Wind Symphony

Heart of the Fathers, for Wind Symphony

Date: May 2000
Creator: Anderson, Stephen Reg
Description: Heart of the Fathers is a programmatic, seven movement work for wind symphony depicting my ancestors and their role as part of the history of The Church of Jesus Christ of Latter-day Saints. The movements represent their spiritual experiences, labors, times of joy, persecution, migration, and finally their arrival and success in their new homeland. The piece is organized in seven movements. Each movement represents a different portion of history leading to the western migration of my ancestors. The programmatic music contains a variety of symbols depicting the experiences of the pioneers. In the paper, each chapter addresses an individual movement. For each movement, the following information is provided: the historical events that inspired the piece, the musical symbols that characterize the program, and an analysis of the function of the music.
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Husband's and Daughter's Role Strain During Breast Cancer Hospice Patient Caregiving and Bereavement Adjustment

Husband's and Daughter's Role Strain During Breast Cancer Hospice Patient Caregiving and Bereavement Adjustment

Date: May 2000
Creator: Bernard, Lori Lynn
Description: Current literature regarding caregiver bereavement adjustment has advanced two competing models explaining adjustment in relation to caregiver interrole conflict: the Relief Model and Complicated Grief Model. This research has primarily focused on the experience of those providing care to dementia patients. This study tests these competing models of bereavement adjustment for husband and daughter caregivers of breast cancer hospice patients. For husbands, greater psychological strain and health strain were predictive of greater difficulty with bereavement adjustment, supporting the Complicated Grief Model of bereavement adjustment. For daughters, strain was not a significant predictor of bereavement adjustment, and thus did not support either bereavement adjustment model. While daughter caregivers experienced more role strain than husband caregivers during patient care, the degree of role strain was predictive of bereavement adjustment for husbands but not for daughters, suggesting that relationship type (husbands versus daughters) between caregiver and patient impacts which factors influence bereavement adjustment.
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The effect of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children

The effect of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children

Date: May 2000
Creator: Battle, Julia Blair
Description: The purpose of this study was to investigate the effects of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children. The findings of prior investigations indicated similarities between aural music and language perception. Psychoacoustic and neurological findings have reported the discrimination of alphabet quality and musical timbre to be similar perceptual functions and have provided, through imaging technology, physical evidence of music learning simultaneously stimulating non-musical areas of the brain. This investigator hypothesized that timbre discrimination, the process of differentiating the characteristic quality of one complex sound from another of identical pitch and loudness, may have been a common factor between music and alphabet sound discrimination. Existing studies had not explored this relationship or the effects of directly teaching for transfer on learning generalization between skills used for the discrimination of musical timbre and alphabet sounds. Variables identified as similar from the literature were the discrimination of same- different musical and alphabet sounds, visual recognition of musical and alphabet pictures as sound sources, and association of alphabet and musical sounds with matching symbols. A randomized pre-post test design with intermittent measures was used to implement the study. There were 5 ...
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Linearity and monotonicity of a 10-bit, 125 MHz, segmented current steering digital to analog converter

Linearity and monotonicity of a 10-bit, 125 MHz, segmented current steering digital to analog converter

Date: May 2000
Creator: Bittle, Charles C.
Description: The purpose of this research is to determine the linearity and monotonicity of the THS5651IDW digital to analog converter (DAC), a prototype of the future Texas Instruments TLV5651, 10-bit, 125 MHz communication DAC. Testing was conducted at the Texas Instruments facility on Forest Lane, Dallas, Texas. Texas Instruments provided test equipment, software and laboratory space to obtain test data. Analysis of the data found the DAC to be monotonic since the magnitude of the differential nonlinearity (DNL) was less than ± 1 least significant bit (LSB) and the integral nonlinearity (INL) was less than ± 0.5 LSB. The study also showed that the DAC has primarily negative DNL although the DNL is well within the desired specification.
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Oxygen Uptake Kinetics in Severe Intensity Exercise

Oxygen Uptake Kinetics in Severe Intensity Exercise

Date: May 2000
Creator: Blumoff, Sonja
Description: 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.
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Filial Therapy Training with Undergraduate Teacher Trainees; Child-Teacher Relationship Training

Filial Therapy Training with Undergraduate Teacher Trainees; Child-Teacher Relationship Training

Date: May 2000
Creator: Brown, Christopher J.
Description: This experimental research study investigated the effectiveness of the application of Child-Teacher Relationship training, adapted from child-centered play therapy procedures and skills training (filial therapy), with undergraduate teacher trainees. Specifically, this research determined if Child-Teacher Relationship training facilitated change in teacher trainees' interactions with children, parenting attitudes, and play therapy attitude knowledge and skills. The experimental group of teacher trainees (n=18) received 10 weekly ninety minute training sessions in child-centered play therapy skills and procedures and conducted 7 weekly special play times with children. The comparison group (n=20) received supplemental training in child guidance during the ten weeks that included parent training and alternatives to corporal punishment. Experimental and comparison group participants completed pre-test and post-test measures, consisting of the Adolescent and Adult Parenting Attitudes Inventory (AAPI-2), the Play Therapy Attitudes, Knowledge, and Skills Survey (PTAKSS), and a videotaped special play time with a child which was rated using the Measurement of Empathy in Adult and Child Interactions (MEACI). Analysis of covariance on adjusted post test means revealed that the teacher trainees in the experimental group demonstrated statistically significant ("<.05) increases in empathy towards children, allowing the child self direction, communication of acceptance, and involvement as measured by the MEACI. ...
Contributing Partner: UNT Libraries
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