UNT Theses and Dissertations - 18,439 Matching Results

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Emergence of Complexity from Synchronization and Cooperation

Description: The dynamical origin of complexity is an object of intense debate and, up to moment of writing this manuscript, no unified approach exists as to how it should be properly addressed. This research work adopts the perspective of complexity as characterized by the emergence of non-Poisson renewal processes. In particular I introduce two new complex system models, namely the two-state stochastic clocks and the integrate-and-fire stochastic neurons, and investigate its coupled dynamics in different network topologies. Based on the foundations of renewal theory, I show how complexity, as manifested by the occurrence of non-exponential distribution of events, emerges from the interaction of the units of the system. Conclusion is made on the work's applicability to explaining the dynamics of blinking nanocrystals, neuron interaction in the human brain, and synchronization processes in complex networks.
Date: May 2008
Creator: Geneston, Elvis L.
Partner: UNT Libraries

The Art of Recording the American Wind Band

Description: Wind bands have been recording for over one hundred years. Through advancements in both technology and process, recordings have made a monumental impact on the wind band and its repertoire. These advancements have created clarity regarding the performance practice of pieces and helped to preserve the wind band repertoire. Many early works have gained masterwork status due, in large part, to the fact that recordings have preserved them. The increase in popularity of recording and, in particular, the wind band, warrants an investigation into the various aspects of the process. Additionally, gaining insight from wind band professionals who record will help to evaluate the contributions that recording has made to the education of performers and listeners, the preservation of repertoire and the artistic enhancement of the wind band. Each chapter explores aspects of the recording process and how those aspects have shaped the wind band, its repertoire and performance practice. Information from conductors, composers and engineers provide valuable insight pertaining to the educational, historical and artistic components of the recording process. The goal of all involved in the recording process should be the pursuit of technical perfection, which does not eclipse the ultimate musical goals of the project and the integrity of the composer's intentions.
Date: May 2006
Creator: Genevro, Bradley James
Partner: UNT Libraries

Assertive Training with Retarded Women

Description: Assertive training was investigated to determine its usefulness in teaching mildly retarded women to become more assertive. The 10 subjects (ages 18-35, WAIS VIQ 50-75) were randomly assigned to either the assertive training or the control group. Experimental subjects received 5 weeks of daily assertive training sessions which employed modeling, behavior rehearsal, and focused instructions in a group setting. Specific components of assertive behavior were taught in the following order: (a) assertive refusals, (b) assertive requests, (c) posture, (d) eye contact, and (e) loudness, Results of a behavioral role-playing task administered to both groups before and after treatment revealed that assertaive training subjects made significantly greater improvement than controls in their assertive content, Additionally, these subjects manifested significantly more improvement than control subjects on a global assertiveness measure.
Date: May 1978
Creator: Gentile, Cynthia Anne
Partner: UNT Libraries

A Study of Relationships Between Socio-Economic Status, Popularity, Achievement, and Personality in the Fifth Grade of the Sanger Public School, Sanger, Texas

Description: The purpose which guided the writer in the conducting of this study was a desire to determine the existence of any relationships which might be perceptible among such traits and considerations as socio-economic status, popularity at school, general scholastic achievement, and traits of personality as they were found in a group of fifth-grade pupils enrolled in the public school of Sanger, Texas.
Date: 1945
Creator: Gentle, Mary Cathlene
Partner: UNT Libraries

A Comparative Study in Remedial Reading for Junior High School Students to Determine Whether the Word-Clue Method of Vocabulary Building Improves General Reading Ability

Description: The major purpose of this study is to evaluate the progress in the general reading ability of a group of pupils taught by remedial methods of teaching, as compared with the progress of a group taught by the same methods plus vocabulary building through the definite study of word-clues and their meanings, to determine whether the word-clue method of vocabulary building aids general reading ability.
Date: 1941
Creator: Gentry, Cassa Peters
Partner: UNT Libraries

The Influence of Popular Music on Self-Disclosure Among Adolescents

Description: Seventy-five adolescent members of a local church youth organization completed Jourard's 40-item Self-Disclosure Questionnaire. The subjects were assigned to three groups, matched for degree of self-disclosure. A control group filled out Green's Sentence Completion Blank. A second group filled out the completion blank after listening to popular music while reading printed lyrics. The third group listened and also wrote a few sentences about the "meaning" of the music. Two judges scored the sentence completion blanks for self-disclosure. An analysis of variance of the sentence completion scores was significant at the .05 level. However, the Scheffe method revealed that only the latter two groups' means differed significantly, in that the second group increased in disclosure while the third group decreased in self-disclosure. Several factors are discussed which may account for the results.
Date: December 1976
Creator: Gentry, David G.
Partner: UNT Libraries

The Simplistic Nature of Spanish Rural Society as Reflected in Some Child Characters of Miguel Delibes

Description: The major proposition is that the childhood point of view in two Delibes novels--El camino (1950) and Las ratas (1962)--aids the reader's comprehension of the basic values held by rural Spaniards. These values are stressed in both novels, giving the reader an insight into the nature of these simplistic people. Honest, accepting attitudes of the child protagonists aid the reader's understanding of the plight of the villagers.The superiority of the natural way of life is revealed in both novels. Nature became even more important to Delibes as his stature as novelist increased, The later work, therefore, is a social protest against effects of industrial progress on rural Castilians.
Date: August 1975
Creator: Gentry, George M.
Partner: UNT Libraries

Sharing of Household Tasks by Employed Married Couples

Description: The problem of this study was to determine if the sex role identification, age, education, and income of employed married couples were related to their perception of who should and does perform household tasks. The forty-five couples were volunteers from organizations for working women. Each spouse completed a Bem Sex Role Inventory and a Household Task Inventory. Using Chi-square and t-tests no significant differences were found between sex role identification, education level, income level, and the sharing of household tasks. When a Pearson product-moment correlation coefficient was used, age and sharing of household tasks were found to have an inverse relationship with the young sharing more tasks. The study concluded that couples expect household tasks to be shared but females tend to perform the traditional feminine tasks and males the traditional masculine tasks.
Date: December 1982
Creator: Gentry, Mary Anne
Partner: UNT Libraries

The Status and Content of Middle/Junior High School Art Programs in Texas

Description: The purpose of this study was to examine the status and the content of the middle/junior high school art- programs in Texas. A questionnaire designed to elicit information concerning the art program was sent to middle/junior high school art teachers in Texas. The responses were analyzed according to the school district size, the grades comprising the school, and the school enrollment using simple descriptive statistics. This study revealed the following areas concerning the typical middle/junior high school art program in Texas: school district size, school enrollment, art enrollment, grades in school, types of art courses, teaching objectives and approaches, art budget, resource materials, and art equipment.
Date: December 1983
Creator: Gentry, Sharon K. (Sharon Kay)
Partner: UNT Libraries

The Effects of Anxiety on the Performance of Collegiate Golfers in Competitive and Non-Competitive Situations

Description: The purposes of the study were to provide additional information concerning the relationship of Competition Trait Anxiety, State Anxiety, and Performance in collegiate golfers under non-competitive and competitive field settings. Subjects were thirty college males. Data were analyzed by a three-way analysis of variance with repeated measures. Conclusions of the investigation were (1) low-Competition-Trait-Anxious golfers performed better and exhibited lower levels of state anxiety than high-and moderate-Competitive-Trait-Anxious golfers in competitive and non-competitive settings; (2) collegiate golfers exhibit higher levels of state anxiety in competitive versus practice settings; and (3) there was a significant relationship between SCAT and pre-competitive state anxiety.
Date: May 1980
Creator: Genuchi, Marvin C.
Partner: UNT Libraries

Impact of Texas High School Science Teacher Credentials on Student Performance in High School Science

Description: A study was conducted to determine the relationship between the credentials held by science teachers who taught at a school that administered the Science Texas Assessment on Knowledge and Skills (Science TAKS), the state standardized exam in science, at grade 11 and student performance on a state standardized exam in science administered in grade 11. Years of teaching experience, teacher certification type(s), highest degree level held, teacher and school demographic information, and the percentage of students who met the passing standard on the Science TAKS were obtained through a public records request to the Texas Education Agency (TEA) and the State Board for Educator Certification (SBEC). Analysis was performed through the use of canonical correlation analysis and multiple linear regression analysis. The results of the multiple linear regression analysis indicate that a larger percentage of students met the passing standard on the Science TAKS state attended schools in which a large portion of the high school science teachers held post baccalaureate degrees, elementary and physical science certifications, and had 11-20 years of teaching experience.
Date: August 2012
Creator: George, Anna Ray Bayless
Partner: UNT Libraries

Extensions of the General Linear Model into Methods within Partial Least Squares Structural Equation Modeling

Description: The current generation of structural equation modeling (SEM) is loosely split in two divergent groups - covariance-based and variance-based structural equation modeling. The relative newness of variance-based SEM has limited the development of techniques that extend its applicability to non-metric data. This study focuses upon the extension of general linear model techniques within the variance-based platform of partial least squares structural equation modeling (PLS-SEM). This modeling procedure receives it name through the iterative PLS‑SEM algorithm's estimates of the coefficients for the partial ordinary least squares regression models in both the measurement model and the overall structural model. This research addresses the following research questions: (1) What are the appropriate measures for data segmentation within PLS‑SEM? (2) What are the appropriate steps for the analysis of rank-ordered path coefficients within PLS‑SEM? and (3) What is an appropriate model selection index for PLS‑SEM? The limited type of data to which PLS-SEM is applicable suggests an opportunity to extend the method for use with different data and as a result a broader number of applications. This study develops and tests several methodologies that are prevalent in the general linear model (GLM). The proposed data segmentation approaches posited and tested through post hoc analysis of structural model. Monte Carlo simulation allows demonstrating the improvement of the proposed model fit indices in comparison to the established indices found within the SEM literature. These posited PLS methods, that are logical transfers of GLM methods, are tested using examples. These tests enable demonstrating the methods and recommending reporting requirements.
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Date: August 2016
Creator: George, Benjamin Thomas
Partner: UNT Libraries

An Evaluation of an Evolving Curriculum in the Dallas Elementary Schools

Description: The problem of this study is a critical evaluation of some of the objectives and practices in the development of an evolving curriculum in the Dallas Elementary Schools. The criteria are based on the implications found in the study of the ideals of a democracy and the psychology of human growth and learning.
Date: 1950
Creator: George, Cora Lee
Partner: UNT Libraries

The Influence of Family Functioning on Identity Formation: a Model of Late Adolescent Identity Development

Description: The influence of theoretically prominent family processes on late adolescent college student identity development was the focus of this study. The primary purpose was to test a model of adolescent identity development. This model proposed that family health variables would predict identity development, and that attachment and separation-individuation would each make unique and additive contributions to identity development. The second purpose was to identify instruments which discretely measured the family processes. The third purpose was to better understand family influences by measuring the processes of exploration and commitment. Participants were 150 male and 150 female college students, between the ages of 18 and 23, and from intact families. Questionnaires completed measured family functioning and identity development. Family functioning measures covered three domains (family health, attachment to parents, and separation-individuation) which formed the set of independent variables. The identity measures (ego identity status and identity process) comprised the dependent variables. A hierarchical regression design was employed where family health variables were entered first, followed by attachment variables, then separation-individuation variables. The results indicated mixed support of the model. First, the proposed model was statistically supported for females as all domains predicted identity achievement and diffusion. For males, only family health predicted identity achievement, and only separation-individuation predicted identity diffusion. Other important findings were that the attachment and separation-individuation domains both assessed forms of connectedness, suggesting only one domain. Thus, the separation-individuation component of the model was not supported. Second, similarity of attitudes consistently predicted identity achievement, diffusion, exploration, and commitment. Third, despite the use of rigorous criteria to obtain discrete scales representative of the theoretical constructs, overlap was discovered within and across domains. The roles of similarity of attitudes between adolescent and parent, and the family environments associated with identity achievement, diffusion, exploration, and commitment are discussed. In addition, methodological and ...
Date: August 1996
Creator: George, David T. (David Titus)
Partner: UNT Libraries

Unity through diversity? Assimilation, multiculturalism and the debate over what it means to be an American.

Description: In late 20th century America, multiculturalism emerged as a doctrine of equal respect and a popular ideological framework for resolving intergroup relations. Despite its dramatic presence, many sociologists conclude that the rather vigorous and often contentious academic inquiries into multiculturalism left us without a solid understanding of its significance. In this dissertation I examine survey and personal interview data to more clearly identify patterns of ideological support for multiculturalism or assimilation in the U.S. public and to isolate the motivations for their preferences. Findings based on the survey data indicate that, despite multiculturalism's symbol appeal, it does not seem to guide preferences in favor of or opposition to assimilation/multiculturalism among members of most groups. According to the quantitative data, support for intermarriage is one of the few variables that positively correlates with preferences for assimilation. The interview data indicate a strong tendency among many participants to conflate the meaning of multiculturalism and assimilation. Despite their stated aspirations, many self-identified multiculturalists do not favor cultural pluralism. Apparently a significant number of the interview participants use a synthesis of multiculturalism and assimilation to frame their preferences for social convergence within an assimilationist paradigm - a perspective that only marginally resembles multiculturalism's doctrine of equal respect. Contrary to the extant literature, patterns of support for multiculturalism among the interview participants indicate racial and ethnic cleavages and these patterns correspond to the U.S. social hierarchy. Because racial and ethnic meanings infused the multiculturalism debate with its energy, it is plausible that the subtleties of racial discourse mask common aspirations among racial and ethnic group members. In the last chapter, I employ Alba and Nee's recent theoretical reformulation of the concept of assimilation to explicate the findings of this dissertation.
Date: December 2005
Creator: George, Douglas F.
Partner: UNT Libraries

An Evaluation of the Programs of Health and Physical Education for Girls in the Junior High Schools of Class AA Type of District One of the University of Texas Interscholastic League

Description: The purpose of this study was to evaluate the programs of health and physical education for girls in the junior high schools of the Class AA type of District One of the University of Texas Interscholastic League.
Date: 1947
Creator: George, Gladys Lynch
Partner: UNT Libraries

Bounded Dynamic Source Routing in Mobile Ad Hoc Networks

Description: A mobile ad hoc network (MANET) is a collection of mobile platforms or nodes that come together to form a network capable of communicating with each other, without the help of a central controller. To avail the maximum potential of a MANET, it is of great importance to devise a routing scheme, which will optimize upon the performance of a MANET, given the high rate of random mobility of the nodes. In a MANET individual nodes perform the routing functions like route discovery, route maintenance and delivery of packets from one node to the other. Existing routing protocols flood the network with broadcasts of route discovery messages, while attempting to establish a route. This characteristic is instrumental in deteriorating the performance of a MANET, as resource overhead triggered by broadcasts is directly proportional to the size of the network. Bounded-dynamic source routing (B-DSR), is proposed to curb this multitude of superfluous broadcasts, thus enabling to reserve valuable resources like bandwidth and battery power. B-DSR establishes a bounded region in the network, only within which, transmissions of route discovery messages are processed and validated for establishing a route. All route discovery messages reaching outside of this bounded region are dropped, thus preventing the network from being flooded. In addition B-DSR also guarantees loop-free routing and is robust for a rapid recovery when routes in the network change.
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Date: August 2003
Creator: George, Glyco
Partner: UNT Libraries

Cognition, Attitude, and the Level of Commitment of Supportive Professional Special Education Personnel Regarding Plan "A" Special Education in Texas

Description: The purpose of this study is to examine the relationships that exist between cognition, attitude and level of commitment to Plan A based on the respondent's first, second or third year of involvement in Plan A special education.
Date: August 1973
Creator: George, James Edward
Partner: UNT Libraries

The Theory of Capitalistic Stagnation

Description: The problem to be dealt with in this paper is the theory of capitalistic stagnation. Why is it important to examine the theory of capitalistic stagnation? The continuity of the theory of stagnation is the only portion of economic doctrine that is held in common by the Classical, Marxian, Keynesian, and Institutional economists.
Date: 1950
Creator: George, John E.
Partner: UNT Libraries