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  Partner: UNT Libraries
 Collection: UNT Theses and Dissertations
Infinite Matrices
This paper will be mostly concerned with matrices of infinite order with elements which lie in Hilbert Space. All the properties of real and complex numbers and all the properties of infinite series and infinite sequences that are not listed will be assumed. digital.library.unt.edu/ark:/67531/metadc107976/
The Mechanism of Action of Immune Guinea Pig Serum in Staphylococcus Infection in Mice
It is the aim of this work to study the role, if any, of C'4 in the immune response against Staphylococcus aureus infections. digital.library.unt.edu/ark:/67531/metadc108010/
Stimulus Values of the Bender Visual Motor Gestalt Test Designs
The purpose of this study is to investigate differences in the stimulus value of the Bender Gestalt designs. It is concerned with both differences in structural values and affective values of the nine figures. The investigation is primarily concerned with the reliability of such differences, and secondarily with the general nature of the differences in stimulus value. digital.library.unt.edu/ark:/67531/metadc108028/
Methods Used to Classify Men Students Enrolled in the Physical Education Required Program at Selected Colleges and Universities in Texas
The purpose of this study is 1. to determine methods currently used by institutions surveyed by the study to classify men students enrolled in physical education required programs; 2. To evaluate methods in use by institutions surveyed by the study to classify men students enrolled in physical education required programs. digital.library.unt.edu/ark:/67531/metadc108040/
Psychological Sex and Sociometric Nomination
The purpose of this study was to investigate the relationship of the psychological sex role of a person making sociometric nominations to the psychological sex role of such persons nominated. It was hypothesized that similar psychological and biological sexed persons would choose each other as friends and that similar psychological but opposite biological sexed persons would reject each other as non-friends. digital.library.unt.edu/ark:/67531/metadc108036/
The Utilization of Industrial Arts Personnel and Equipment for School Maintenance in Texas Secondary Schools
This is a study of the utilization of industrial arts personnel and equipment for school maintenance in Texas secondary schools. digital.library.unt.edu/ark:/67531/metadc108046/
Signs of Paranoid Schizophrenic Behavior on the Bender-Gestalt Test
The problem of this study was to isolate a constellation of "signs" or items of behavior of individuals on the Bender-Gestalt test and to determine if these signs will discriminate significantly between one patient category, paranoid schizophrenia, and three other major diagnostic categories. digital.library.unt.edu/ark:/67531/metadc108038/
Biological Indices of Stream Pollution
A thorough biological survey and evaluation is a lengthy and expensive project. The number of technically trained persons required prevent its use by most public agencies. Since public health departments are the groups most frequently concerned with measuring the effects of pollution in streams, a need exists for a simplified method of sanitary survey. Recognizing this need, the Texas Heal Department assigned the writer the problem of devising a method of survey which would require a field party of two and could be conducted entirely from a mobile field laboratory. digital.library.unt.edu/ark:/67531/metadc130298/
A Study to Determine to What Extent the Students and Recent Alumni of Robstown High School Think the School is Meeting the Imperative Needs of Youth
The problem set forth is a study to determine to what extent the students and recent alumni of Robstown High School think the school is meeting the imperative needs of youth. digital.library.unt.edu/ark:/67531/metadc130252/
A Study to Determine a Sound Basis for Administering the Extra-Class Activities
The purpose of the study is two-fold: (1) to determine a sound basis for the administration of extra-curricular activities in a secondary school and (2) to evaluate practices and procedures of forty high school administrators in administering extra-curricular activities to determine the extent to which they meet accepted criteria in the field. digital.library.unt.edu/ark:/67531/metadc130254/
Some Generalizations in the Theory of Summable Series
It will be our purpose to study a generalized definition of sum of a series and the restrictions which must be placed upon it in order that it shall satisfy the generally accepted requirements of any generalized definition of sum of a series. We shall then proceed to investigate the possibilities of further generalizing this process. digital.library.unt.edu/ark:/67531/metadc130256/
A Comparative Study of the Educational Growth and Personal Characteristics of Children from Broken Homes and of Children from Normal Homes
The problem herein undertaken is to compare the educational growth and personal characteristics of children from broken homes with those of children from normal homes. Plans were made to carry out the study described herein. If the broken home had any effect, could it be determined and measured in such a manner as to draw reasonable conclusions? An investigation was made to determine the effect, if any, which the broken home was having on the children in the school. digital.library.unt.edu/ark:/67531/metadc130258/
The Effect that Socio-Economic Status has upon the Intelligence and Achievement of 120 Fourth-Grade Pupils
The purpose of this study is to determine the effect that socio-economic status has upon the intelligence and achievement of 120 fourth-grade pupils. Ninety of the fourth-grade pupils were enrolled in the Denison Elementary Schools, Denison, Texas, and thirty of the fourth-grade pupils were enrolled in an independent school, one mile outside the Denison city limits. digital.library.unt.edu/ark:/67531/metadc130262/
Reactions of Regular Personnel to Junior Executive Training Programs in Selected Oil Companies
This thesis has as its primary purpose determining what, if any, resentment toward junior executive programs may exist among regular or "old" employees of a selected group of petroleum companies in the Port Arthur, Beaumont, and Port Neches area of Texas. At the same time, measures taken in these companies to cope with the problem will be studied and appraised. digital.library.unt.edu/ark:/67531/metadc130284/
Linear Spaces
The purpose of this paper is to present the results of a study of linear spaces with special emphasis of linear transformations, norms, and inner products. digital.library.unt.edu/ark:/67531/metadc108094/
The Problem of the Artist in Society : Hawthorne, James, and Hemingway
The relationship of James to Hawthorne and of Hemingway to James certainly indicates the close literary relationship of the three writers. This development makes it seem only natural that three such self-conscious artists would have recourse to similar interests and would employ in their writings common themes, ideas, and methods. digital.library.unt.edu/ark:/67531/metadc108090/
A Study of Some 1-alkyl-1,2-dihydro-3-hydroxybenzo[g]quinoxaline-5,10-diones
The experiment in this thesis involves a study of some 1-alkyl-1,2-dihydro-3-hydroxybenzo[g]quinoxaline-5,10-diones. digital.library.unt.edu/ark:/67531/metadc108092/
Annual Average Prices of Veal Calves at Chicago Compared to Annual Average Weekly Earnings of Employees in All Manufacturing Industries, 1900-1951
This study traces the annual average prices received per hundredweight for veal calves at the Chicago market and the annual average weekly earnings of employees in all manufacturing industries. The period of time covered by the study is 1900 to 1951. digital.library.unt.edu/ark:/67531/metadc130286/
The Prairie Dichotomy: an American Cultural Pattern
This thesis discusses American prairie culture through the writings of Thorstein Veblen and Mark Twain. digital.library.unt.edu/ark:/67531/metadc130272/
Nitrogen Derivatives of Naphthoquinone
This thesis investigates nitrogen derivatives of naphthoquinone. digital.library.unt.edu/ark:/67531/metadc130278/
The Determination of the Relationship between Reading Skills and Personality Development
The purpose of the study is to show that personality adjustments and reading skills have a decided connection in the development of the individual, for with enunciation, pronunciation, and oral interpretation of the printed page come greater confidence, self-expression, and poise. digital.library.unt.edu/ark:/67531/metadc130270/
A Study of Selected Dichotomous Typologies in Modern Social Theory
It is the purpose of this thesis to examine systematically the theories of selected sociologists and anthropologists with the end in view of determining whether or not or to what degree the various dichotomies are valid and useful. In addition to specific criticisms of doctrines peculiar to individual theorists, an attempt will be made to answer the following questions: What are the theoretical sources from which the dichotomies of types of social life in modern sociological and anthropological theory are derived? Are the dichotomies based upon legitimate contrasts which can be demonstrated empirically? To what extent do the value orientations of the theorists bias their results? How valuable are the dichotomies as guides to empirical investigation? To what extent do the dichotomous theories contribute to an understanding of the causes and directions of social change? digital.library.unt.edu/ark:/67531/metadc130288/
A Study of Calvin Milton Woodward's Contribution to the Present-Day Field of Industrial Arts
This study was made to determine the contributions of Calvin Milton Woodward to the field of industrial arts. His work will be analyzed so as to prove that his philosophy of manual training is directly related to the underlying philosophy of the industrial arts system. digital.library.unt.edu/ark:/67531/metadc130320/
Evaluating Textual Material for Developmental Tasks
The problem of this study is to demonstrate a method of evaluating situations in textual materials that may assist pre-adolescent children in achieving certain developmental tasks. The problem involves the analysis of fifty stories taken from five state-adopted readers on the sixth-grade level, as well as the development of criteria for making such an analysis. digital.library.unt.edu/ark:/67531/metadc130326/
Senecan and Other Influences on Six Elizabethan Revenge Plays
This thesis traces the revival of Senecan tragedy from 1570 to the end of the sixteenth century through some of the earlier translations, adaptations, and imitations, and to evaluate the significance of the final evolution of such works into the Elizabethan tragedy of revenge. digital.library.unt.edu/ark:/67531/metadc130328/
An Evaluation of the Aims, Methods, and Accomplishments of Certain Teacher Organizations
The purpose of this study is (1) to determine the fundamental differences in the American Federation of Teachers and the National Education Association and (2) to evaluate these organizations in terms of criteria basic to the organization of any group. It is hoped that a microscopic analysis and evaluation of these two teacher organizations, representing both union and non-union groups, will cast some beneficial light upon weaknesses and strong points of both groups and result in recommendations which will be of benefit in the work of individual teachers as well as to the organizations. digital.library.unt.edu/ark:/67531/metadc130296/
The Effect of Naturalistic Behavior Strategies on the Quality of Social Interactions for Children with Autism
Autism is primarily a social disorder and deficits in social?orienting may be responsible for the failure of children with autism to initiate critical social behaviors. The purpose of this research was to improve the quality of social interactions of children with autism by implementing naturalistic behavior strategies intervention utilizing a multiple baseline design across four participants. Naturalistic behavior strategies comprised a comprehensive package of integrated components including: (a) intervention in the child’s natural environment; (b) child-initiated play activities ; (c) prompts to emit language; (d) shaping for all vocal approximations and (e) delivery of natural reinforcement with embedded social interactions to maintain learned behavior. In addition to intervention, generalization of child behaviors was assessed across untrained parents and/or caregivers in the same environment. Results indicated the effectiveness of naturalistic teaching strategies package in increasing (a) the frequency of vocal mands for all children, (b) the number of times that children initiated social engagement during manding, and (c) intervals of nonverbal dyadic orienting. These skills generalized across two untrained caregivers in the same clinical setting without any training from the interventionist. Two parents required training during the generalization phase in order for their child’s behaviors to maintain at levels demonstrated during the intervention phase. Implications for future research and clinical practice are discussed. digital.library.unt.edu/ark:/67531/metadc149644/
A Teaching Guide for the Development of Personal and Social Qualities in the Women Major Students of the Health, Physical Education and Recreation Department of North Texas State College, Denton, Texas
The investigator had the following purposes in developing the study: 1. To determine the social and personal qualities that should be developed in women major students in the health, physical education, and recreation department of North Texas State College. 2. To organize topics centering around the selected social and personal qualities for presentation in the Teaching Guide of this study. 3. To set up for each topic a suggested teaching plan by outlining contents and suggested activities related to each topic to be used as a guide for physical education teachers in promoting the development of personal and social qualities in the women major students. 4. To construct the Teaching Guide. digital.library.unt.edu/ark:/67531/metadc130246/
A Study to Determine a Sound Occupational Counseling Program as a Phase of Business Teaching
This study had as its sole purpose the outlining of sound procedures for the business teacher to follow in occupational counseling. digital.library.unt.edu/ark:/67531/metadc130250/
Effects of Minimum Quantity Lubrication (Mql) on Tool Life in Drilling Aisi 1018 Steel
It has been reported that minimum quantity lubrication (MQL) provides better tool life compared to flood cooling under some drilling conditions. In this study, I evaluate the performance of uncoated HSS twist drill when machining AISI 1018 steel using a newly developed lubricant designed for MQL (EQO-Kut 718 by QualiChem Inc.). A randomized factorial design was used in the experiment. The results show that a tool life of 1110 holes with a corresponding flank wear of 0.058 mm was realized. digital.library.unt.edu/ark:/67531/metadc149638/
Influence of Racial-ethnic Identity on Minority Students’ Perceived Academic Engagement
The current study examined the relationship between the three components of racial-ethnic identity (REI)- Connectedness, Embedded Achievement, and Awareness of Racism- and academic engagement in middle school African American (n=62) and Latino (n=30) youth. We hypothesized the three components of REI would be able to predict academic engagement in the youth, as well as an interaction between ethnicity and the REI components. A hierarchical regression revealed Connectedness and Embedded Achievement were both accurate predictors of student’s academic engagement. In addition, an interaction between Embedded Achievement and ethnicity was also present in the current study. The results indicate that African American youth who have higher levels of Embedded Achievement are more likely to have a higher academic engagement levels while the academic engagement of Latino youth remained fairly constant regardless of level of Embedded Achievement. digital.library.unt.edu/ark:/67531/metadc149684/
Teacher Educators: What Motivates Them to Choose Academe?
Currently, there is a shortage of professors preparing personnel to teach in high need areas (e.g., special education, English language learners) at institutions of higher education (IHE). The purpose of the present study was to examine the motivations or influencers that impelled individuals to pursue careers in IHEs as professors in personnel preparation. Data were collected using Motivations for Choosing Academia as a Profession (MCAP) and a 10-item Big Five Inventory (BFI-10). Two hundred eighty-nine professors of education representing the four U.S. census regions participated in the present study. The MCAP is a 25-item instrument designed to measure retrospective motivation of faculty decisions to enter the professoriate. The development of the MCAP is described and an exploratory factor analysis was employed to examine the psychometric validity of the instrument. Three factors emerged and implications are discussed. Data were analyzed using logistic regression with the dichotomous outcome variable being the area of education in which the professor works (i.e., general or special education). digital.library.unt.edu/ark:/67531/metadc149568/
Strategic Path to Fiscal Sustainability: Revenue Diversification and the Use of Debt By Us Municipal Governments
This work explores the relationship between municipal government debt and revenue diversification using a prism of institutional and fiscal interactions, concentrating on revenue fungibility effects over time and on the role of state-imposed constraints. A diversified revenue structure tends to stabilize revenue levels by balancing income-elastic and inelastic revenue sources. The impact of such diversity has been the subject of much research on expenditure and service levels among state and local governments. Considerably less research has been conducted on its potential relationship with debt, although capital financing is a necessary and often-utilized mechanism for funding capital and operational spending for local governments. Since it is well known that debt payments are fixed in the short run, they require sufficient revenue adequacy through economic highs and lows. It is thus argued that local governments with more diversified revenue structures are better able to utilize debt financing since revenue diversity mitigates the risk of borrowing by providing for greater fiscal predictability in the long run. This hypothesis is tested on two samples - a large sample of cities in Massachusetts from 2000 through 2009, as well as a cross-state sample, encompassing the cities from the majority of U.S. states. The findings of both studies provide preliminary evidence on the influence of revenue diversification on the levels of municipal indebtedness. While the Massachusetts study reveals that revenue diversification is, indeed, a statistically significant determinant of debt per capita, which also has an indirect effect on property tax burdens, the cross-state study suggests that revenue diversification has a mitigating impact on certain state-imposed fiscal rules, further adding to its weight as a strategic financial management tool. Both studies also reiterate the importance of such fiscal capacity factors as fund balances, intergovernmental revenue, and the size of government, while also revealing some new interaction patterns among various state-imposed debt limitations. digital.library.unt.edu/ark:/67531/metadc149636/
Korean Traditional Elements and Contemporary Compositional Techniques in Hyowon Woo’s Choral Music As Reflected in Gloria
Among native Korean choral composers, Hyowon Woo has emerged as one of the most significant representatives of choral genre, both in Korea and internationally. She has created a new style of choral music that combines traditional Korean musical elements with contemporary Western compositional techniques, in a synthesis that generates new sonorities and effects. Her choral music falls into three basic categories: music employing direct quotation of Korean folk tunes or other elements, which produce typical Korean sonorities; music using Western practices, which produce modern and Western flavors; and music combining Korean traditional methods with modern Western concepts. Hyowon Woo’s unique contribution to contemporary Korean choral music is ideally represented by her Gloria, which will form the basis for this study. Because traditional Korean music culture has such a strong presence and influence on her choral compositions, detailed knowledge of these elements are essential for the study and performance of her work. The combination of traditional Korean music and Western contemporary techniques lies at the core of her compositional style, and is the principal focus of this study. A detailed understanding of these stylistic elements, both Korean and Western, and how they work together to achieve the composer’s purpose and vision, is vital to achieving an informed performance of this work.  This study is intended to supply the conductor these needed tools and to add to the small but growing body of literature related to the performance practice not only of Woo’s significant body of choral compositions, but of Korean choral music in general. digital.library.unt.edu/ark:/67531/metadc149552/
Superintendent Preparation for the 21St Century
This study focused on the perceptions of six superintendents regarding the state of the profession as of 2012, and it reports their thoughts and suggestions as to what preparation is needed by superintendents for the 21st century. The participating superintendents, who were all members of the Western States Benchmarking Consortium, were employed in six school districts in five states. Data were collected through surveys and telephone interviews. The findings of this study clearly indicate a lack of cohesion between what superintendents learned in their university professional preparation programs and what they practice in their day to day activities. The superintendents involved in this study tended to favor a hybrid approach – rigorous theoretical insight grounded in real world practice. Since superintendents typically spend a good deal of their time solving challenging problems including funding shortfalls, competition from other educational institutions, and the constant scrutiny of the media; their preparation needs to provide opportunities to develop their leadership skills and solve real world problems in an environment where they can take risks. Mentoring and participation in professional consortiums were recommended as key elements for the preparation of the twenty-first century superintendent. This study contributes to the discussion of how to best prepare school leaders for the current and future demands of superintendency. digital.library.unt.edu/ark:/67531/metadc149596/
Caregiver Perceptions of Wandering Behavior in the Adrd (Alzheimer’s Disease and Related Dementias) Patient
The dissertation examined family caregivers’ perceptions of wandering behavior after their loved one has been diagnosed with ADRD (Alzheimer’s disease and related dementias). Semi-structured in-depth face-to-face interviews of a convenience sample of 22 caregivers in the Dallas metropolitan area were conducted. Responses were analyzed using a grounded theory approach. The use of qualitative methods facilitated the study of how caregivers of a loved one with ADRD understood and explained in their own voice the wandering behavior associated with the disease and how their views of the behavior informed the caregiving process. In particular, this research examined why some caregivers tend to recognize wandering behavior as significant early on while the ADRD patient is still living in the home (and community) and modifications can be made to keep him or her there despite the behavior, and why some caregivers do not. Findings indicated that caregivers were concerned about the general safety of their loved one. Precautions were taken within the home for conditions related to frailty, but were much less likely to be taken to address wandering behavior and its negative consequences. Three groups of caregivers emerged: (a) those who primarily reacted to their loved one’s problem behaviors including wandering, and intervened minimally; (b) those who were proactive, making modifications in their routines and environment to protect their loved one after a trigger event; and (c) those who had a mixed response, who did the best that they could with what they had. This last group of caregivers took on additional roles, modified their homes for safety, but environmental stressors and inadequate supports limited their interventions. Implications of the findings for aging in place and community, further research, policy-making, and practitioners are discussed. digital.library.unt.edu/ark:/67531/metadc149582/
The Emotional Needs of Mothers of Multiple Birth Children
The purpose of this study was to assess the emotional support needs of mothers of multiple birth children based on administration of a survey the researcher developed. The survey consisted of 25 demographic items, six 6-point Likert scale items, and three open-ended questions. Likert scale items were based on amount of perceived emotional support mothers received in their environments at the time of survey administration. Open-ended questions addressed negative and positive aspects of parenting multiples and emotional support needs. The sample consisted of 171 mothers of multiple birth children from 23 states in the United States. Participants ranged in age from 20-50 years old with 38% not reporting age. Participants were 95.3% Caucasian, 0% African-American, 1.8% Asian, 0% Native American and 1.2% other; of these, 5.8% were Hispanic. We used demographic statistics and constant comparison to determine basic demographic characteristics of this sample and to identify emotional support needs of mothers of multiple birth children. We used Pearson product moment correlation to determine potential relationships between variables. Results indicated a statistically significant positive correlation between overall life satisfaction and partner satisfaction (r = .420, n = 170, p < 0.01). Therefore, mothers of multiples experience increased satisfaction with their lives when they receive greater support from partners. Also, results indicated a statistically significant positive correlation between partner satisfaction and partner caretaking responsibilities (r = .305, n = 169, p < 0.01). As partners of mothers of multiples increase contribution to caretaking of children, mothers demonstrate greater relationship fulfillment. Implications for mental health professionals working with mothers of multiple birth children are discussed. digital.library.unt.edu/ark:/67531/metadc149682/
Regulatory Orientation, Message Framing and Influences of Fit on Customer Behaviors
Existing literature on consumer behavior has argued that an individual’s regulatory orientation interacts with message framing. If there is a match between regulatory orientation (promotion versus prevention) and message framing, this results in positive attitudes toward a given advertisement. Conversely, if there is a mismatch, the effect is opposite, i.e., attitudes toward that advertisement are less positive and less favorable. This research extends the term of compatibility by examining how regulatory focus moderates the impact of two aspects of message framing (attribute framing and risky choice framing) on customer perceptions. It also examines whether regulatory fit is created when there are interactions between individuals’ regulatory orientation and message framing and how the fit changes customer perceptions about a message. Specifically, this dissertation provides answers to the following questions: (1) does regulatory fit take place when regulatory focus is compatible with two aspects of message framing (attribute and risky choice)?; (2) does regulatory fit take place when one aspect of message framing (attribute) is compatible with the other (risky choice)?; and (3) how do customer perceptions change if customers experience regulatory fit? The results show that the effects of utilitarian attributes and national brands are dominating and that both promotion- and prevention-oriented customers have higher perceptions of these attributes and brands. The findings of this study have both theoretical and practical implications. Theoretically, this study should enhance our understanding of regulatory focus theory. Practically, the results should provide marketers with more insights into the correlation between message framing and regulatory orientation and the effect of fit on message persuasion, enabling them to develop more effective marketing strategies. digital.library.unt.edu/ark:/67531/metadc149676/
Molecular Dynamics Simulations of the Structures of Europium Containing Silicate and Cerium Containing Aluminophosphate Glasses
Rare earth ion doped glasses find applications in optical and photonic devices such as optical windows, laser, and optical amplifiers, and as model systems for immobilization of nuclear waste. Macroscopic properties of these materials, such as luminescence efficiency and phase stability, depend strongly on the atomic structure of these glasses. In this thesis, I have studied the atomic level structure of rare earth doped silicate and aluminophosphate glasses by using molecular dynamics simulations. Extensive comparisons with experimental diffraction and NMR data were made to validate the structure models. Insights on the local environments of rare earth ions and their clustering behaviors and their dependence on glass compositions have been obtained. In this thesis, MD simulations have been used to investigate the structure of Eu2O3-doped silica and sodium silicate glasses to understand the glass composition effect on the rare earth ions local environment and their clustering behaviors in the glass matrix, for compositions with low rare earth oxide concentration (~1mol%). It was found that Eu–O distances and coordination numbers were different in silica (2.19-2.22 Å and 4.6-4.8) from those in sodium silicate (2.32 Å and 5.8). High tendencies of Eu clustering and short Eu-Eu distances in the range 3.40-3.90 Å were observed in pure silica glasses as compared to those of silicate glasses with much better dispersed Eu3+ ions and lower probability to form clusters. The results show Eu3+ clustering behavior dependence on the system size and suggest for low doping levels, over 12,000 atoms to obtain statistical meaningful results on the local environment and clustering for rigid silica-based glasses. The structures of four cerium aluminophosphate glasses have also been studied using MD simulations for systems of about 13,000 atoms to investigate aluminum and cerium ion environment and their distribution. P5+ and Al3+ local structures were found stable while those of Ce3+ and Ce4+ ions, through their coordination numbers and bond lengths, are glass composition-dependence. Cerium clusters were found in the high cerium glasses.P5+ coordination numbers around cerium revealed the preference of phosphorus ions in the second coordination shell. Total structure factors from MD simulations and experimental diffraction results show a general agreement from comparison for all the cerium aluminophosphate glasses and with compositional changes up to 25 Å-1. Aluminum enters the phosphate glass network mainly as AlO4 and AlO5 polyhedra only connected through corner sharing to PO4 tetrahedra identified by Q11(1 AlOx), Q12(2 AlOx), Q21(1 AlOx), and Q22(2 AlOx) species. digital.library.unt.edu/ark:/67531/metadc149624/
Using the S-o-r Model to Understand the Impact of Website Attributes on the Online Shopping Experience
Using Mehrabian and Russell’s (1974) stimulus (S) - organism (O) - response (R) model, this study developed online shopping experience framework that explains consumer behavioral responses toward online and offline stores. The results of the examined hypothesized relationships in this study reveal website attributes that create positive affective and attitudinal states and behavioral responses toward the retailers and retailers’ websites. Among website attributes, interface design is the strongest predictor of all behavioral responses, while website attributes relating to shopping services and security/privacy affect long term behavioral responses, such as purchase intention and brand loyalty. This study is imperative to practitioners and researchers, as they will help further develop online store environments and online shopping experience. digital.library.unt.edu/ark:/67531/metadc149694/
Licensed Professional Counselors’ Attitudes Toward People with Schizophrenia: Predictors of Interest in Providing Interventions
For individuals with schizophrenia and their caregivers, psychosocial interventions have been shown to significantly improve recovery and reduce relapse rates. Although this population is underserved and stigmatized, counselors have been excluded from most research into attitudes toward and interventions for these families. Using a stratified random sample survey design, researchers explored the relationships between participating U.S. Licensed Professional Counselors’ attitudes towards, recovery beliefs regarding, familiarity with, desire for social distance from, and interest in providing services to individuals with schizophrenia and their caregivers. Most of the 111 participants (11.1% response rate) identified themselves as female (83.8%) and Caucasian (86.5%). A few participants described themselves as Hispanic (6.3%) or Black or African-American (5.4%). Respondents ranged in age in years from 20’s to 60’s with the largest group in their 40’s. Descriptive statistics indicated that the majority of LPC participants reported low to moderate stigmatizing attitudes, strong beliefs in recovery, and moderate to high interest in providing interventions for people with schizophrenia and their caregivers. Furthermore, almost half of participating LPCs reported already working with individuals with schizophrenia. Bivariate correlations and hierarchical regressions indicated that high interest in providing interventions for this population was significantly correlated (p < .01) with high frequency of already working with the population (large effect), low desire for social distance (medium effect), high desire to help socially (medium effect), and strong beliefs in recovery (small effect). The results support including LPCs in all areas pertaining to interventions, research, and recovery for people with schizophrenia and their caregivers. digital.library.unt.edu/ark:/67531/metadc149610/
Teachers of Students with Emotional and Behavioral Disorders’ Perceptions of Professional Standards of Practice
In recent decades, there has been renewed interest in examining the effectiveness of teacher preparation programs. Unfortunately, researchers have found that there is limited empirical research on the effectiveness of quality special education teacher preparation programs, specifically those programs specializing in the education of students with emotional and behavioral disorders (EBD). The Council for Exceptional Children (CEC), the largest special education organization, conducts research on the standards needed by teachers who serve children and youth with exceptionalities. These CEC standards are recommended to serve as a guide for teacher preparation programs in special education. Utilizing the CEC standards delineated for preparation programs in EBD, the present study sought to determine how graduates of one program perceived the importance of the standards and their perceived proficiency in using the standards in their work with students with EBD. Results indicated that graduates viewed the standards as Important to their work with students with EBD. Further, they viewed their proficiency in using the standards to be above average. In addition, the present study examined the relationship between graduates perceived importance and perceived proficiency in using the CEC standards. Results indicated that graduates who had higher score ratings on their perceived importance of the standards tended to have higher ratings on their perceived proficiency scores. digital.library.unt.edu/ark:/67531/metadc149634/
Multi-perspective, Multi-modal Image Registration and Fusion
Multi-modal image fusion is an active research area with many civilian and military applications. Fusion is defined as strategic combination of information collected by various sensors from different locations or different types in order to obtain a better understanding of an observed scene or situation. Fusion of multi-modal images cannot be completed unless these two modalities are spatially aligned. In this research, I consider two important problems. Multi-modal, multi-perspective image registration and decision level fusion of multi-modal images. In particular, LiDAR and visual imagery. Multi-modal image registration is a difficult task due to the different semantic interpretation of features extracted from each modality. This problem is decoupled into three sub-problems. The first step is identification and extraction of common features. The second step is the determination of corresponding points. The third step consists of determining the registration transformation parameters. Traditional registration methods use low level features such as lines and corners. Using these features require an extensive optimization search in order to determine the corresponding points. Many methods use global positioning systems (GPS), and a calibrated camera in order to obtain an initial estimate of the camera parameters. The advantages of our work over the previous works are the following. First, I used high level-features, which significantly reduce the search space for the optimization process. Second, the determination of corresponding points is modeled as an assignment problem between a small numbers of objects. On the other side, fusing LiDAR and visual images is beneficial, due to the different and rich characteristics of both modalities. LiDAR data contain 3D information, while images contain visual information. Developing a fusion technique that uses the characteristics of both modalities is very important. I establish a decision-level fusion technique using manifold models. digital.library.unt.edu/ark:/67531/metadc149562/
Community Pressures Exerted by Employers to Break Strikes
This thesis explores community pressures exerted by employers to break strikes and their history. digital.library.unt.edu/ark:/67531/metadc130268/
Latino Students’ School Counseling Needs: an Exploratory Needs Assessment
The purpose of this study was to examine Latino/a student preferences for school counselor activities. The primary focus of research was to determine what school counseling activities Latino/a students perceived as important and which school counseling activities Latino/a high school students perceived as satisfying. The researcher pursued this purpose through administration of a survey instrument developed by the researcher. The instrument consisted of 14 demographic items and 42 5-point Likert scale items based on the domains described in the ASCA’s national model and current literature on experiences of Latino/a adolescents. The sample was comprised of 210 Latino/a high school students from five high schools in three school districts in the suburbs of a large Southwestern U.S. metroplex. The study population consisted of 94 female and 115 male participants ranging in age from 14 to 20 years old with the median age of 17.54 years. Overall, students preferred school counseling activities focusing on college and career readiness. According to the results of this study, students indicated that although they believed college and career activities to be important, they were not satisfied with how their school counselors provided those activities. Multiple regression analyses were utilized to determine which demographic variables were significant predictors of respondents’ perceptions of importance. Results indicated student perceptions of importance did not vary across grades, economic levels, genders, or cultural differences. The results, limitations, and suggestions for school counseling programs were provided within the report. digital.library.unt.edu/ark:/67531/metadc149642/
Scratch Modeling of Polymeric Materials with Molecular Dynamics
It is impossible to determine the amount of money that is spent every replacing products damaged from wear, but it is safe to assume that it is in the millions of dollars. With metallic materials, liquid lubricants are often used to prevent wear from materials rubbing against one another. However, with polymeric materials, liquid lubricants cause swelling, creating an increase in friction and therefore increasing the wear. Therefore, a different method or methods to mitigate wear in polymers should be developed. For better understanding of the phenomenon of wear, scratch resistance testing can be used. For this project, classic molecular dynamics is used to study the mechanics of nanometer scale scratching on amorphous polymeric materials. As a first approach, a model was created for polyethylene, considering intramolecular and intermolecular interactions as well as mass and volume of the CH2 monomers in a polymer chain. The obtained results include analysis of penetration depth and recovery percentage related to indenter force and size. digital.library.unt.edu/ark:/67531/metadc149608/
Synthesis and Characterization of Two and Three Coordinate Gold (I) Conjugated and Rigid Metallodendrimers
This dissertation is a study of two major topics that involve synthetic strategies for new classes of phosphorescent gold(I)-based metallodendrimers. The phosphorescence of organic and inorganic luminophores originates from spin-orbit coupling owing to internal or external heavy atom effects as well as metal-centered emissions. Previous work in the Omary group entailed systematically designed small molecules, metallopolymers, and unconjugated metallodendrimers that contain d10 and d8 metals, whereas this dissertation aims in part to expand such strategies to the conjugated metallodendrimer regime. In one approach novel synthetic strategies were used to make first-generation phenyl acetylene dendrimers and phosphine derivatives thereof. The phosphine dendrimers are made by tethering one of the phosphines to an unsaturated dendrimer, as such phosphine dendrimers are better chromophores and luminophores due to their structural rigidity and extended conjugation. In another approach, 2- and 3-coordinate Au(I) dendritic complexes are synthesized from these phosphine dendrimers. This study is further extended to study metallodendritic complexes with different cores, for example triphenylene-based metallodendritic complexes with six acetylene branches. The physical properties of the metallodendrimers can be modulated upon proceeding to further dendrimer generations or by using solubilizing groups on the peripheral phosphines, thus allowing better processability for thin-film fabrication as required for molecular electronic devices and higher chance for crystal growth toward accurate structural characterization. Other data produced in this project suggested that some structural alterations led to porous solids that render them suitable for realized and potential applications in energy storage and carbon capture. The interesting luminescence properties of the metallodendrimers and porous extended solids produced in this dissertation are significant toward utilizing such materials for optoelectronic applications such as energy-saving organic light-emitting diodes and optical sensors for environmental pollutants. digital.library.unt.edu/ark:/67531/metadc149678/
Social Capital and Health Among Older Adults in China: a Multi-level Analysis
Health and well-being of older adults has become a worldwide public health concern and has been attracting increasing attention from scholars across the globe. But little is known about the health of the Chinese elderly. Using data from the China Health and Retirement Longitudinal Study (CHARLS) --Pilot, a pilot survey in 2008 in two provinces of China, Gansu and Zhejiang, this dissertation examines the association between social capital at both the individual- and community- levels and three health outcomes among older adults in China. A series of multi-level models were estimated using SAS 9.2. Statistical results indicate that such individual-level social capital variables as perceived help and support in the future, help from others, and birthplace significantly impacted health among older Chinese adults. When examining the relationship between community-level social capital and health, this study confirms the significant association between community-level social capital and good health independent of individual-level predictors. This study also indicates that the impact of gender and rural-urban Hukou status interacts with the province of residence. The results were discussed in terms of cultural legacy in the Chinese cultural setting, the current social dynamics related to old age support, health-related government reforms, and various disparities across different regions and across different social groups in China. digital.library.unt.edu/ark:/67531/metadc149662/
Federalism and Civil Conflict: the Missing Link?
This thesis investigates federalism and civil conflict. Past work linking federalism and civil conflict has investigated the factors that pacify or aggravate conflict, but most such studies have examined the effect of decentralization on conflict onset, as opposed to the form federalism takes (such as congruent vs incongruent forms, for example). I collect data on civil conflict, the institutional characteristics of federalist states and fiscal decentralization. My theoretical expectations are that federations who treat federal subjects differently than others, most commonly in an ethnically based manner, are likely to experience greater levels of conflict incidence and more severe conflict. I find support for these expectations, suggesting more ethnically based federations are a detriment to peace preservation. I close with case studies that outline three different paths federations have taken with regards to their federal subunits. digital.library.unt.edu/ark:/67531/metadc149626/
Event Centrality: Debunking the “Bad Science” Myth That Self-reported Posttraumatic Growth Does Not Reflect Positive Change
Despite strong evidence supporting the existence of posttraumatic growth (PTG), some investigators question whether the construct measured by the Posttraumatic Growth Inventory (PTGI) is that of perceived growth or “actual” growth. In a replication of a recent investigation, the present study sought to refine the methodology used by employing the construct of event centrality. Due to its limited sample size, the results of this analysis did not provide strong evidence in support of the hypothesis that limiting analyses to individuals rating their trauma as high in event centrality improves the ability of the PTGI to reflect “actual” growth. However, results did support the idea that investigations of PTG conducted immediately following a trauma may be more reflective of a coping process, rather than growth. Further research is warranted to investigate the role of event centrality in posttraumatic growth, and the effect of time on the progression of growth following trauma. digital.library.unt.edu/ark:/67531/metadc149614/
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