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249 Matching Results
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Operators on Continuous Function Spaces and Weak Precompactness
If T:C(H,X)-->Y is a bounded linear operator then there exists a unique weakly regular finitely additive set function m:-->L(X,Y**) so that T(f) = ∫Hfdm. In this paper, bounded linear operators on C(H,X) are studied in terms the measure given by this representation theorem. The first chapter provides a brief history of representation theorems of these classes of operators. In the second chapter the represenation theorem used in the remainder of the paper is presented. If T is a weakly compact operator on C(H,X) with representing measure m, then m(A) is a weakly compact operator for every Borel set A. Furthermore, m is strongly bounded. Analogous statements may be made for many interesting classes of operators. In chapter III, two classes of operators, weakly precompact and QSP, are studied. Examples are provided to show that if T is weakly precompact (QSP) then m(A) need not be weakly precompact (QSP), for every Borel set A. In addition, it will be shown that weakly precompact and GSP operators need not have strongly bounded representing measures. Sufficient conditions are provided which guarantee that a weakly precompact (QSP) operator has weakly precompact (QSP) values. A sufficient condition for a weakly precomact operator to be strongly …
Date:
August 1988
Creator:
Abbott, Catherine Ann
System:
The UNT Digital Library
Love Attitudes and Marital Adjustment Through Five Stages of the Marital Life-Cycle in Protestant Nigerian Society
This study examined the relationship between love attitude and marital adjustment across five stages of the marital life-cycle in Nigerian society. The subjects for this study were 202 volunteers from six protestant churches representing six cities in the southern part of Nigeria. An average of 20 couples were representatives of each of the five marital life-cycles. Each of the subjects completed the Love Attitude Inventory (LAI), and the Marital Adjustment Test (short form) (MAT). Wilk's multivariate analysis revealed no significant differences between husbands' and wives' love attitude and marital adjustment across the five stages of the marital life cycle. Multivariate analysis split-plot 5.2 with repeated measures revealed no significant difference for the total sample among the groups, but indicated a significant difference between love attitude and marital adjustment for the total sample using sex as a factor. A univariate test of the MAT and LAI indicated that the MAT accounted for the difference. A canonical correlation indicated a significant positive relationship between husbands1 and wives' marital adjustment and love attitude within each of the five groups. The findings suggest that husbands and wives included in this study have a good understanding of their roles in the marriage relationship and that …
Date:
December 1988
Creator:
Acho, Onyebuchi S. (Onyebuchi Sunday)
System:
The UNT Digital Library
A Study to Determine the Relationship of Versatile Behavior to Individual Demographics, Job Characteristics, Organizational Climate Performance Feedback and Job Satisfaction
The behavioral characteristics of leaders have been subjects of study for centuries. The scope of these studies has grown to encompass task analysis, follower needs and situational requirements. Current leadership theories consistently recognize the need for a successful leader to adjust behavior to meet the needs of the task, followers and situation. The problem of this research is to define this ability to modify one's behavior, measure it and test its relationship to demographic and job characteristics. The purpose of this study is to evaluate the correlation of individuals" ability to modify their behavior to job function, hierarchy, climate, feedback, satisfaction and their demographic characteristics. The hypotheses held that high ability to modify behavior would correlate positively with job characteristics, climate, feedback and satisfaction and show no correlation to individual demographics. Data were collected through the administration of three research instruments to 138 managers of three business firms. The instruments were the Participant Data Form providing job and demographic characteristics, Descriptive Adjective Questionnaire measuring an individual ability to modify behavior, and Climate and Satisfaction Evaluation Index measuring climate, feedback and satisfaction. Perason's correlation coefficients were calculated to identify possible relationship between the manager's ability to modify behavior, called versatility, and …
Date:
May 1988
Creator:
Ackerman, Raymond L. (Ramond Lorens)
System:
The UNT Digital Library
Response of Female Athletes to Twelve-Week Plyometric Depth-jump Training
This study aimed to investigate the response of trained intercollegiate and national level female athletes to twelve week depth-jump (DJ) training performed twice weekly with forty repetitions of DJs performed each training session. Results of statistical analysis revealed that only the .3 and .5 meter experimental group improved significantly on VJ ability. However, there was no significant increase in LS for either experimental group compared to the control group. It was concluded that DJ training from .3 and .5 meter heights is more optimal for increasing VJ ability of trained female athletes compared to the 0.75 and 1.1 meter heights as recommended by Verhoshanski for trained male athletes. It was also concluded that DJ training has the the ultimate purpose of developing explosive leg power not leg strength.
Date:
August 1988
Creator:
Adel, Ahmed Mousa
System:
The UNT Digital Library
A Stylistic Evaluation of Charles Valentin Alkan's Piano Music: a Lecture Recital, together with Three Recitals of Selected Works of J.S. Bach, Beethoven, Brahms, Liszt, Schumann, and Villa-Lobos
Charles Valentin Alkan (1813-1888), one of the great genii in music history, was widely misunderstood by his contemporaries because of his highly idiosyncratic ideas. From the perspective of the late twentieth century, his innovations can be better understood, and his music is now gaining wider appreciation. Yet, today many musicians still do not know even his name, much less his achievements. The year 1988 marks the one hundredth year since his death. In commemoration of this centennial anniversary, this thesis is presented as a plea for a greater awareness of the achievements of this important figure in the development of piano music.
Date:
December 1988
Creator:
Ahn, Joel, 1957-
System:
The UNT Digital Library
Computer Realization of Human Music Cognition
This study models the human process of music cognition on the digital computer. The definition of music cognition is derived from the work in music cognition done by the researchers Carol Krumhansl and Edward Kessler, and by Mari Jones, as well as from the music theories of Heinrich Schenker. The computer implementation functions in three stages. First, it translates a musical "performance" in the form of MIDI (Musical Instrument Digital Interface) messages into LISP structures. Second, the various parameters of the performance are examined separately a la Jones's joint accent structure, quantified according to psychological findings, and adjusted to a common scale. The findings of Krumhansl and Kessler are used to evaluate the consonance of each note with respect to the key of the piece and with respect to the immediately sounding harmony. This process yields a multidimensional set of points, each of which is a cognitive evaluation of a single musical event within the context of the piece of music within which it occurred. This set of points forms a metric space in multi-dimensional Euclidean space. The third phase of the analysis maps the set of points into a topology-preserving data structure for a Schenkerian-like middleground structural analysis. This …
Date:
August 1988
Creator:
Albright, Larry E. (Larry Eugene)
System:
The UNT Digital Library
Perspective Taking and Self Disclosure
The effects of taking a third person role on self disclosure, self sympatheticness and several nonverbal parameters of task involvement were examined in a psychotherapy analogue study. Subjects were classified as high or low in ego strength using previously established norms for college students. In the third person role subjects were instructed to describe themselves from the perspective of an "intimate and sympathetic best friend." An encouragement to talk format was used to facilitate self description from the first person. Support was not found for the hypotheses that altering the perspective used in self description would increase self disclosure and that high ego strength subjects would be better able to use a perspective taking intervention. Theoretical and methodological issues are discussed. Recommendations for future research are made.
Date:
May 1988
Creator:
Allen, Bruce W. (Bruce Wayne), 1958-
System:
The UNT Digital Library
The Perceived Impact of the Texas Career Ladder Plan upon the Motivational Levels of Teachers
The problem of this study was to determine the perceived impact of the Texas Career Ladder Plan upon the motivational levels of teachers. The purposes were to determine: the impact of the Texas Career Ladder Plan as an incentive for improved job performance; the strengths and weaknesses of the current Texas Career Ladder Plan; the types of incentives that teachers believe would motivate them to perform better; and the suggestions that teachers have to modify the current Texas Career Ladder Plan. An opinionnaire was developed to obtain data pertinent to the perceived impact of the Texas Career Ladder Plan in providing incentives for improved job performance. A random sample of 500 elementary school teachers and 500 secondary school teachers was selected from the personnel rosters of the participating schools. Data from 92 percent of the subjects sampled was achieved. A descriptive analysis was used to interpret data collected in this study. The findings indicated that the Texas Career Ladder Plan has had no impact or a perceived negative impact upon the motivational levels of teachers as indicated by 14 of the opinionnaire items surveyed. There was a perceived positive impact upon the motivational levels of teachers as indicated by eight …
Date:
December 1988
Creator:
Allen, Claudis
System:
The UNT Digital Library
Cognitive Level Demands of Test Items in State-Adopted Computer Science Textbooks
Test items supplied with seven textbooks approved for use in Computer Science I and II curricula in Texas public schools were categorized by Bloom's taxonomy of educational objectives. Eating was done by a panel of ten judges selected from a group of participants at a taxonomy workshop. The selection criterion was demonstration of at least 80 percent competency in item classification. Judges received a small stipend for completing the rating task. Of 2020 possible items, 998 were randomly selected for analysis. Equal percentages of items from each text were then randomly assigned to each rater. All statistical analyses were computed using SPSS/PC+ (version 2.1). In both courses, CLD frequencies decreased through the three lower levels. The percentage of questions falling in these levels was approximately 83 percent for both courses. However, the higher-level course contained almost 10 percent more Knowledge level questions than did the lower course. At the higher taxonomic levels, the decline was roughly five percent per level in CS I but erratic in CS II. Analysis by book also revealed wide differences within each course.
Date:
August 1988
Creator:
Aman, James R.
System:
The UNT Digital Library
The Developmental Appropriateness of the English Language Arts Essential Elements for Kindergarten
The developmental appropriateness of the English language arts essential elements for kindergarten children in the State of Texas was evaluated by surveying the opinions of thirty-six kindergarten teachers in one school district. A questionnaire was developed using the essential elements so that respondents could record a yes or no opinion and supply additional comments on each essential element. Ninety-seven percent of the teachers responded. The results indicated rates of agreement for developmental appropriateness by the teachers surveyed to be 100% for language, 95% for listening, 94% for speaking and reading and 81% for writing.
Date:
December 1988
Creator:
Anderson, Susan R. (Susan Rogers)
System:
The UNT Digital Library
Purification and Characterization of a Differentiation Factor From Rat Lung Conditioned Medium
A Differentiation Factor (DF) was purified from rat lung conditioned medium by a four-steps procedure. The DF has a molecular weight of 27000, and an isoelectric point of 4.70. Although DF is stable up to 60°C, it is sensitive to digestion by trypsin, chymotrypsin and subtilisin. DF forms granulocyte colonies in soft agar. Studies using anti-NRK CSF antibody demonstrated that DF is distinct from GM-CSF.
Date:
May 1988
Creator:
Ansari, Naser A. (Naser Awni)
System:
The UNT Digital Library
Managerial Assessment Centers in the Hotel Industry: Concerns with Validity
A replication of an original study of managerial assessment centers performed by Sackett and Dreher (1982) is presented. Their major finding, indicating that assessment centers lack key tenets of internal construct validity, was corroborated in this study of a hotel managers' assessment center. This hotel managers' assessment center is also found to be externally valid using criterion-related validity. The argument is posed that assessment centers, as standardized tests of complex behavioral traits, appear to be operating outside the bounds of normal test construction principles. Five key explanations for this paradox are offered to guide much needed future research in this area. Additionally, a description of commonly utilized assessment center activities is offered the reader.
Date:
May 1988
Creator:
Baker, Thomas Grant
System:
The UNT Digital Library
Corporate Tax Rates and the Purchasing Power Parity Doctrine
This thesis analyzes the effect of corporate tax rates on the purchasing-power-parity (PPP) doctrine. The data used to test this hypothesis are drawn from the U. S., the U. K., the Federal Republic of Germany, Canada, and Japan. The first chapter introduces the reader to the concepts of the PPP doctrine and states the hypothesis. Chapter 2 reviews the literature on the PPP doctrine. Chapter 3 specifies a model of the PPP doctrine including tax rates. Chapter 4 reports and interprets the findings. The study is summarized and conclusions are drawn in chapter 5. In this study it is shown that tax rates are significant only in the case of the U. S. dollar/Canadian dollar exchange rate.
Date:
August 1988
Creator:
Ballard, Billy L. (Billy Lanoy)
System:
The UNT Digital Library
Twenty-Six Two- and Three-Voiced Canons by Johann Walter Transcribed for French Horn
This thesis provides modern transcriptions for horn of twenty-six two- and three-voiced canons by Johann Walter, thereby adding to the literature available from the sixteenth century for that instrument. This project specifically attempts to introduce the high school and college student hornist to modal music in strict fugal form; the transcriptions appear as an appendix. The topics discussed in the body of this thesis include the canon, Johann Walter's life and significant contributions, sixteenth-century instrumental music, musicians' guilds, the zink, and the horn. This work is not intended to offer a comprehensive history of any of these areas, but to aid the teacher and student in the preparation and performance of these transcriptions.
Date:
May 1988
Creator:
Balthrop, Sharon
System:
The UNT Digital Library
The Bifurcated Personalities of Christina Rossetti and Dante Gabriel Rossetti as Reflected in Their "Sister Poems"
Christina Rossetti and Dante Gabriel Rossetti both suffered from ambivalent feelings concerning the role female sexuality plays in the salvation of the soul. These ambivalent feelings ranged from seeing female sexuality as leading men to salvation, to seeing it as a trap for the destruction of women's souls as well as men's. The contradictory feelings of the Rossettis' typifies the Victorian people's experience and was caused by the nature of the times. Using the analysis of the period by Walter E. Houghton in The Victorian Frame of Mind: 1830-1870, this paper describes the affect the Victorians' religious zeal, their "moral earnestness," and their "woman-worship" had on the two Rossetti poets.
Date:
December 1988
Creator:
Becherer, Nadine L. (Nadine Lee)
System:
The UNT Digital Library
An Empirical Investigation of the Lobbying Influence of Large Corporations on Selected FASB Standards
The Financial Accounting Standards Board is a private sector rule making body. Congressional inquiries have questioned whether the setting of accountin standards should remain in the private sector. Congressional critics have charged that the FASB has been captured by special interests and recommended that a governmental agency assume responsibility for standard setting. Specifically, critics charge that large corporations capture the Big Eight accounting firms who, in turn, have captured the FASB. Previous capture studies have concluded that the standard setting process is pluralistic and that the FASB has not been captured. The studies have focused on the influence of the Big Eight to determine if the FASB has been captured. They assume if standards do not reflect the expressed preferences of the Big Eight, then Congressional criticisms are invalid. The studies also assume a unidirectional influence between participants in the process and have ignored the intensity of preferences of the respondents.The purpose of this study is to provide a theoretical framework to specify selection of standards that would be expected to be subject to capture. This framework also recognizes the duo-directional nature of influence. The allegations of capture were tested using the standards selected in accordance with the theoretical framework. …
Date:
May 1988
Creator:
Beckman, Ronald J. (Ronald James)
System:
The UNT Digital Library
Musical Aesthetics: An Objective Approach to "Music Appreciation" for American Public Education
The specific problem prompting this investigation is the creation of a method of music criticism. The purposes for the investigation are three in number. First and foremost, the purpose of the investigation is to develop an unrestricted method of music criticism. The development of such a method fulfills the second reason for the investigation. Although Mortimer Adler and the Paideia Group have clearly stated the classes and pedagogy to be utilized in a Paideia curriculum, they have done little to suggest specific class content. This study resolves the content problem for one class. It is recommended that the music masterworks class be treated as a course in music criticism. Through such treatment of the class, students will meet the goals of the Paideia Group and develop the tools for societal reconstruction. Finally, the goal of establishing a method of music criticism harmonious with the educational philosophy of reconstructionism is the end to the previous two "means" purposes.
Date:
December 1988
Creator:
Begnaud, Edward M. C.
System:
The UNT Digital Library
The Knowledge and Attitudes of Dental Hygiene Students: Smokeless Tobacco
The use of smokeless tobacco products is increasing among teenagers and young adults in the United States. Community health professionals play a vital role in educating the public about these products, and in this regard the dental hygienist is of critical importance. This study evaluated the knowledge and attitudes towards smokeless tobacco among a representative sample of dental hygiene students in the United States. The dental hygiene schools were divided into six geographical regions and a total of 34 schools and 722 students participated. Seniors were found to score significantly higher than non-seniors both in knowledge and attitude. Furthermore, some significant differences in attitude were discovered between regions. In general, students scored poorly on both knowledge and attitude despite reporting having received classroom instruction on smokeless tobacco.
Date:
December 1988
Creator:
Biernat, Kathy Ann
System:
The UNT Digital Library
The Measurement of the Association between Aircrew Members' Flying Proficiencies and Graduate Study
This ex post facto inquiry investigated the existence of an association between advanced formal education and the largely psychomotor task of flying military aircraft. The analysis of data indicated that such an association does exist. Data were analyzed by computer comparison of two separate data bases. The first data base included selected U.S. Air Force officers' educational histories. The second set of data included aircrew standardization/evaluation qualification grade scores. Individual subjects were identified, and for each subject a record was formed that included the subject's standardization flight proficiency grade and advanced educational background. Group subsets of selected variables were then recorded in 2 X 2 contingency tables and statistical calculations using chi square tests of independence were applied.
Date:
December 1988
Creator:
Bisher, Jon A. (Jon Alan)
System:
The UNT Digital Library
An Empirical Investigation of the Structural Form and Measurement Validity of the Hill Inventory
This research began with the Hill Inventory. Cognitive style preference variables were classified as one of following four types: Theoretical Codes, Qualitative Codes, Social-Cultural Codes or Reasoning Modalities. A consumer behavior perspective was then used to form an alternative structure for the Hill Inventory variables. The following three constructs were proposed: Evaluation Codes, Perceptual Codes, and Reasoning Modalities. The purpose of this research was to assess the structural form and measurement validity of the Hill Inventory. Specific steps taken to accomplish this objective included: developing confirmatory factor and structural equation models; using the LISREL software package to analyze the model specifications; and assessing the validity of the questions used to measure the variables. A descriptive research design was used to compare the model specifications. The research instrument consisted of eight statements for each of twenty-eight variables for a total of 224 questions. Five-point response choices were described by the words: often, sometimes, unsure, rarely, or never. The sample consisted of 285 student subjects in marketing classes at a large university. Data analysis began by comparing the distributions of the data to a normal case. Parameter estimates, root mean square residuals and squared multiple correlations then were obtained using the LISREL …
Date:
August 1988
Creator:
Blake, Faye W.
System:
The UNT Digital Library
Genetic Differentiation of the Geomys Pocket Gopher Complex of Texas
Genetic variation was analyzed for populations of seven taxa comprising four cytotypes of the Geomys bursarius chromosome complex, including G. b. major, G. b. knoxjonesi, and the Edwards Plateau taxa, G. b. llanensis and G. b. texensis. Genetic relationships of the Edwards Plateau gophers with other taxa and between themselves were examined. Genetic similarity, number of fixed allelic differences, and ectoparasite distribution indicate the Edwards Plateau gophers are a distinct gene pool. Isolation of the Edwards Plateau taxa precludes contact zone analysis. However, genetic differentiation is typical of that between other species of Geomys, and the Edwards Plateau taxa should be recognized as G. texensis. Distributions of allelic frequencies indicate little justification in retaining the subspecific status of the Edwards Plateau forms.
Date:
August 1988
Creator:
Block, Scott B. (Scott Bishop)
System:
The UNT Digital Library
A Study of Three Related Works by Michael Tippett: A Child of Our Time, The Vision of Saint Augustine, The Mask of Time
Three works by Tippett stand together among his compositions because of their similarity of subject and performance medium. All are large works for soloists, chorus and orchestra, on meditative librettos, and intended for unstaged presentation. Only A Child of Our Time is given the genre designation "oratorio" by Tippett. An in-depth analysis of these works and the model for A Child of Our Time, Handel's Messiah, reveals that though they neither present religious subjects nor, in the case of The Vision of Saint Augustine and The Mask of Time, exhibit traditional formal divisions associated with oratorio, Tippett's works do indeed belong to the oratorio repertoire of the twentieth century.
Date:
December 1988
Creator:
Bolthouse, Colleen R.
System:
The UNT Digital Library
The Effect of Remediation on Students Who Have Failed the TEAMS Minimum Competency Test
This qualitative case study provided a narrative portrait of 12 students in the 11th grade in one north Texas district who failed the initial administration of the Texas Educational Assessment of Minimum Skills (TEAMS) exit-level test. It also presented an account of their perceptions of the test and their efforts to overcome this educational hurdle. The following conclusions were drawn from the study. Limited English proficiency (LEP) students had difficulty mastering the language arts section of the test. A majority of the students reported that TEAMS failure had no social impact. Most of the students declined district-offered remediation. Students tended to perceive the test as a personal challenge. Those students who attended remedial tutoring sessions performed better on the following retest than those who declined remediation. Hispanic and Asian students expressed additional study as being the key to passing the test. Black students felt that the key to passing was to spend sufficient time while taking the test. Those students who were more verbal during their interviews tended to be more successul in passing the language arts section of the TEAMS. The following recommendations were made from the study: (a) students who fail the TEAMS by minimal margins should be …
Date:
August 1988
Creator:
Bragg, John M. (John Morris), 1949-
System:
The UNT Digital Library
Unity, Ecstasy, Communion: The Tragic Perspective of W.B. Yeats
As a young man of twenty-one in 1886, William Butler Yeats announced his ambition to unify Ireland through heroic poetry. But this prophetic urge lacked structure. Yeats had only some callow notions about needing self-possession and appropriate control of his imagery. As a result, his search for essential knowledge and experience soon led him into occult and symbolist vagueness. Yeats' mind grew flaccid, and his art languished in preciosity for over a decade. Lotos-eating had replaced prophetic fervor. However, early in the new century, as Yeats neared middle age and permanent mediocrity, he recovered his early zeal and finally found the means to give it artistic shape. Through daily theatre work he had discovered tragedy. And through personal trials he had developed a tragic sense. Hence, an entire tragic perspective was born, one that would dominate Yeats' mind and art the rest of his life. Locating the contours of Yeats' shift in-viewpoint, then, provides the key to understanding the man and his mature work. The present study does just that, tracing the origin, development, and elaboration of Yeats' tragic perspective, from its theoretical underpinnings to its poetic triumphs. Above all, this study supplies the basic context of Yeats* careers why …
Date:
May 1988
Creator:
Brooks, John C.
System:
The UNT Digital Library