UNT Libraries - 22,214 Matching Results

Search Results

Breast Cancer Screening Health Behaviors in Older Women
Health beliefs of 221 postmenopausal women were assessed to predict the Breast Cancer Screening Behaviors of breast self-examination (BSE) and utilization of mammography. Champion's (1991) revised Health Belief Model (HBM) instrument for BSE, which assesses the HBM constructs of Seriousness, Susceptibility, Benefits, Barriers, Confidence and Health Motivation, was utilized along with her Barriers and Benefits instrument for mammography usage. Ronis' and Harel's (1989) constructs of Severity-Late and Severity-Early were evaluated along with Cuing and demographic variables. These exogenous latent constructs were utilized in a LISREL path model to predict Breast Cancer Screening Behavior.
Using Steepest Descent to Find Energy-Minimizing Maps Satisfying Nonlinear Constraints
The method of steepest descent is applied to a nonlinearly constrained optimization problem which arises in the study of liquid crystals. Let Ω denote the region bounded by two coaxial cylinders of height 1 with the outer cylinder having radius 1 and the inner having radius ρ. The problem is to find a mapping, u, from Ω into R^3 which agrees with a given function v on the surfaces of the cylinders and minimizes the energy function over the set of functions in the Sobolev space H^(1,2)(Ω; R^3) having norm 1 almost everywhere. In the variational formulation, the norm 1 condition is emulated by a constraint function B. The direction of descent studied here is given by a projected gradient, called a B-gradient, which involves the projection of a Sobolev gradient onto the tangent space for B. A numerical implementation of the algorithm, the results of which agree with the theoretical results and which is independent of any strong properties of the domain, is described. In chapter 2, the Sobolev space setting and a significant projection in the theory of Sobolev gradients are discussed. The variational formulation is introduced in Chapter 3, where the issues of differentiability and existence of gradients are explored. A theorem relating the B-gradient to the theory of Lagrange multipliers is stated as well. Basic theorems regarding the continuous steepest descent given by the Sobolev and B-gradients are stated in Chapter 4, and conditions for convergence in the application to the liquid crystal problem are given as well. Finally, in Chapter 5, the algorithm is described and numerical results are examined.
Multiresolutional/Fractal Compression of Still and Moving Pictures
The scope of the present dissertation is a deep lossy compression of still and moving grayscale pictures while maintaining their fidelity, with a specific goal of creating a working prototype of a software system for use in low bandwidth transmission of still satellite imagery and weather briefings with the best preservation of features considered important by the end user.
Eutrophication Monitoring and Prediction
Changes in trophic status are often related to increases or decreases in the allocthonous inputs of nutrients from changes in land use and management practices. Lake and reservoir managers are continually faced with the questions of what to monitor, how to monitor it, and how much change is necessary to be considered significant. This study is a compilation of four manuscripts, addressing one of these questions, using data from six reservoirs in Texas.
A Study to Determine an Adequate Program of Readiness for Texas History
This study will attempt to determine an adequate program of readiness for Texas History.
A Study of Unsatisfactory Adjustment of Pupils in a Third Grade
The purpose of this study is to find the factors that cause maladjustment for third-grade pupils and to find means of eliminating or reducing the causal factors, thereby eliminating the unsatisfactory adjustment.
A Comparison of the Relative Effectiveness of Mainstream Versus Pullout Treatment Programs in Addressing the Needs of At-Risk Students
The purpose of the study was to compare the relative benefits of treating at-risk students, those considered to be potential dropouts, by separating them into special classes at a separate facility—a pullout program—versus having them remain in regular classes with periodic supplemental counseling based upon individual needs—a mainstream program. To carry out the purpose of the study, students enrolled in the two types of treatment programs were compared in respect to retention in school, attendance, academic achievement based upon pretest and posttest scores, report card grades, and attitude toward school.
An Evaluation of Achievement Scores and Teacher Ratings of Boys and Girls in the Fourth Grade
The main purpose of this study was to evaluate the total achievement scores and teacher ratings of pupils in three fourth grades in Chico and Decatur elementary schools to determine differences, if any, in the rate of progress between boys and girls and in teacher ratings. A secondary purpose was to make a study of individual differences in achievement and to make a number of case studies of pupils in one school.
A Study of Some Congenital Anomalies of the Hands and Feet
This paper has been undertaken, first, to contribute several more cases of various congenital anomalies to the literature on human genetics, and, second, by an analysis of the genealogies, to determine the possible modes of transmission of these anomalies.
Modeling State Repression in Argentina and Chile: A Time Series Analysis
This study is an attempt to contribute to the emerging theoretical literature on state repression. A time-series model was developed to test the hypothesis that state violence in Argentina and Chile is largely a function of four internal political factors and their interactions: 1) the inertial influence of past restrictive policies on the formulation of current policies, 2) the annual incidence of political protest demonstrations, 3) the perceived effectiveness of repressive measures on unrest, 4) and the institutionalization of military rule.
State Participation in Funding Capital Projects and Improvements in Texas Public Schools
The impact of four basic capital project funding models for state participation was determined for the school districts in Texas. A review of the historical background for funding of capital projects and improvements by states was followed by a review of the historical background of state support for funding capital projects in the State of Texas. Additionally, the current funding models and methods of determining need were reviewed for all of the states. This historical review revealed that facility funding, like aid for maintenance and operation, has evolved with all the states at different stages.
From Knowing Content to Constructing Knowledge: A Trend Analysis of Secondary Science Education, 1953-1992
The purpose of this study was to identify and analyze secondary science education curriculum and instruction trends for the period 1953-1992 by using the technique of content analysis to examine a representative portion of journal articles and policy statements in secondary science education. Two major science publications, The Science Teacher and Science Education, were selected for analysis.
A Role Modification Model: the Foreign Policy of the Palestine Liberation Organization, 1964-1981
This study is a Comparative Foreign Policy (CFP) analysis of the Palestine Liberation Organization's (PLO) foreign policy behavior from 1964 through 1981. This study develops and tests a role modification model that accounts for evolutionary changes in foreign policy behavior. One of the major premises of this research is that what often appears as dramatic restructuring in foreign policy is actually the culmination of a series of modifications that transpired over an extended period of time. The model relies on a total of six independent variables as determinants of PLO foreign policy output representing multiple levels of analysis. There are a total of 12 dependent variables expressed as either foreign policy tactical roles or strategic goals. Relying on content analysis of relevant PLO documents, the role modification model demonstrates that the foreign policy output of the PLO experienced a gradual, over time change in both the means and ends of its foreign policy. The model also identifies the conditions under which any one of the independent variables is able to exclusively determine foreign policy output and which roles one can reasonably expect the PLO to exercise under a given circumstance.
Young Children's Construction of Physical Knowledge on Swings in the Outdoor Play Environment
This investigation examined the development of young children's behaviors on swings in the outdoor play environment and their emerging understanding of the physics principles associated with those behaviors. The children's language interactions were also examined in an effort to determine the relationship between language and cognitive development in their construction of physical knowledge. The procedures involved observing the children's behaviors and collecting samples of their spontaneous language interactions during their swinging activities. Informal interviews were also conducted with individual and groups of children. The findings indicate that young children's swinging behaviors develop in eight hierarchical stages. As these behaviors develop, children experiment with the physics principles of balance, gravity, force, resistance, and resonance. Children's swinging behaviors develop in a social context. Many early behaviors are acquired through observing and modeling other children. Language provides the medium for more-experienced peers to assist novice swingers through encouragement and direct instruction. The stage development of swinging behaviors is compared to Cratty's Theory of Perceptual-Motor Development and Harrow's Taxonomy of the Psychomotor Domain. Children's cognitive processing and language interactions are discussed in the context of Piagetian and Vygotskian theories of development. Implications for instruction and suggestions for further research are discussed.
Functional Properties and Organization of Primary Somatosensory Cortex
The physiological characteristics and organization of cat primary somatosensory cortex (SI) were studied in electrophysiological and anatomical experiments. In single cell recording experiments, quantitatively controlled mechanical stimuli were used to examine the responses of SI cortical neurons to the velocity component of skin or hair displacement. The firing frequency of most rapidly adapting neurons increased as stimulus velocity was increased. Rapidly adapting neurons were classified based on their response patterns to constant-velocity ramp stimuli. Neurons in these classes differed significantly in sensitivity to stimulus velocity and amplitude, adaptation rate, and spontaneous firing rate. The results suggest that frequency coding of stimulus displacement velocity could be performed by individual SI rapidly adapting neurons, and that the classes of rapidly adapting neurons may play different roles in sensation of tactile stimuli. Tract-tracing experiments were used to investigate the ipsilateral corticocortical connections of areas 3b and 2 in SI. Different patterns of connections were found for these areas: area 2 projects to areas 3b, 1, 3a, 5a, 4 and second somatosensory cortex (SII), and area 3b projects to areas 2, 1, 3a and SII. To further compare the organization of these areas, the thalamic input to the forepaw representation within each area was studied. The forepaw region in area 3b receives thalamic input exclusively from ventroposteriopr lateral nucleus (VPL), while area 2 receives input from VPL, medial division of the posterior complex (PoM), and lateral posterior nucleus (LP). These results suggest that area 2 lies at a higher position in the hierarchy of somatosensory information flow.
An Evaluation of Methods of Reporting Grade Progress in a Selected Number of Schools
The purpose of this study is to make an evaluation of the type of reports on pupil progress made by a selected number of elementary schools in Texas to determine the extent to which the reports meet criteria for reporting grade progress to parents.
A Study to Determine the Adequacy of the Science Programs of the Small High Schools of North Central Texas
The purpose of this study is to determine how adequately the smaller high schools of North Central Texas are conforming to certain standards in the science field. The problem of this study is to determine whether science teachers' objectives and methods are in line with educational objectives and certain sound psychological practices and whether the science training has made any contributions to the general education of the high-school students in this area.
An Evaluation of the School Lunch Programs of Bryan County, Oklahoma to Determine a Sound Procedure for Their Operation
In this study it is proposed to survey ten selected school lunch programs in Bryan County, Oklahoma, in order to determine a sound procedure for the operation of a successful school lunch program. the increasing knowledge of nutrition as an element in the scholastic progress of children is a factor that the school administrator must consider.
A Study of the Trends in Methods and Content of Nature Study Teaching in the Primary Grades in Texas since 1900
The problem of this study is to determine the trends in the Nature Study in Texas with reference to the quantity and quality of printed materials for primary grades and the trends in methods of presenting them.
An Investigation of Heart Response During Trumpet Playing
The purpose of this study was to investigate the effects of trumpet playing upon the heart. A Holter monitor was used to record electrocardiograms (ECGs) to examine the heart's response during musical performances and practice sessions.
The Evaluation of a Library Service Program Designed to Increase Recreational Reading Among Elementary School Age Children
The problem in this study is to evaluate a library service program designed to increase recreational reading among elementary school age children.
Semi-continuity and Related Properties
The elementary notion of a function originated in the work of mathematicians of the seventeenth century, and was somewhat closely connected with investigations in the field of algebra. This paper will be concerned with an investigation of a generalized type of continuity known as semi-continuity.
Integrating Art with Other Subjects in a Fifth Grade of the Robert E. Lee School in Denton, Texas
The purpose of this study was threefold: (1) to develop an integrative program using art as its core which was put into effect in one of two fifth grades in the Robert E. Lee School in Denton, Texas, (2) to develop criteria for evaluating an art program used as an integrating agent, and (3) to evaluate the program in terms of the criteria and in outcomes in achievement in subject matter.
Collaborative Approach to Address Scholarly Communications and Digital Curation Challenges
Presentation for the Cross Timbers Library Collaborative (CTLC) Scholarly Communications and Digital Curation (SCDC) Affinity Group 2013 Summer Meeting. In this presentation, the authors discuss collaborative approaches to address scholarly communications and digital curation challenges.
Scaling up to meet growing needs
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. The author discusses scaling up to meet the growing needs of a digital library.
Tech Tools and the Law
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses tech tools and the law.
Online Profiles and Unique Author Identifiers
Presentation for the Cross Timbers Library Collaborative (CTLC) Scholarly Communications and Digital Curation (SCDC) Affinity Group 2013 Winter Meeting. This presentation discusses online profiles and unique author identifiers, their importance, features, and strategies for successfully using them.
New World of Scholarly Publishing
Presentation for the Cross Timbers Library Collaborative (CTLC) Scholarly Communications and Digital Curation (SCDC) Affinity Group Summer 2014 Meeting. This presentation discusses scholarly publishing activities at the University of Michigan (UM) Libraries and library publishing service ideas at the University of North Texas (UNT) Libraries.
Curating the Southwest Region's Maps: UNT-UTA Collaborative Project
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference discussing the Mapping the Southwest project. Mapping the Southwest was a 3-year project (2010-2013) funded by a National Endowment for the Humanities (NEH) We the People grant. This presentation discusses the background of the project, the goals and activities, impacts, and lessons learned.
Name Authority Control: An institutional repository approach
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. This presentation discusses the importance of name authority, how the UNT Name App tool addresses challenges with name authority, the migration and implementation process, and implications for future use.
NDNP at UNT: Building Open Access To Our Heritage
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. This presentation discusses the National Digital Newspaper Program (NDNP) at the University of North Texas (UNT). The author gives a background of the project, discusses the production, the data and workflow, collaboration efforts, and helpful software tools.
Implementing the Extended Date/Time Format in Digital Collections
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. This presentation discusses the implementation of the Extended Date/Time Format (EDTF) within the University of North Texas (UNT) digital collections. It includes a summary of the kinds of date formats in the EDTF with examples from the digital collections, a description of methods used to implement and utilize the machine-readability of the format, and an overview of reasons that other institutions may want to consider switching to the EDTF.
From Theses and Dissertations to ETD: Retrospective Digitization and New Forms of Scholarship
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses electronic theses and dissertations (ETDs) and retrospective digitization and new forms of scholarship.
Broadening the Scope of an Institutional Repository: The Patent Project
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation a project to include patents into the University of North Texas (UNT) Scholarly Works institutional repository.
Shared Metadata for Regional Landmarks: Building Names
Presentation for the Cross Timbers Library Collaborative (CTLC) Special Collections Affinity Group meeting. This presentation discusses dealing with building names in digital collections.
Road Trip! Special collections and heritage tourism
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses special collections and heritage tourism.
Getting the Word Out: Strategies for Amplifying your Library's Twitter Presence
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses strategies for amplifying your library's Twitter presence and getting the word out.
Scaling Behaviors and Mechanical Properties of Polymer Gels
Polymer gels undergo a volume phase transition in solvent in response to an infinitesimal environmental change. This remarkable phenomenon has resulted in many potential applications of polymer gels. The understanding of its mechanical properties has both scientific and technological importance. For this purpose, we have developed a novel method for measuring Poisson's ratio, which is one of the most important parameters determining the mechanical property of gels. Using this method, Poisson's ratio in N-isopropyacrylamide (NIPA) and polyacrylamide (PAAM) gels has been studied.
Pay It Forward: Mentoring library students for career development
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) conference. The authors discuss mentoring library students for career development.
Creating Value Beyond the Library: Best Practices for Embedded Librarianship
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. This presentation discusses creating value beyond the library and best practices for embedded librarianship.
Facilitating Discovery and Long-term Access to Electronic Theses and Dissertations: Notes About Those in Music
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference. In this presentation, the authors discuss facilitating discovery and long-term access to electronic theses and dissertations (ETDs) and offer notes about music ETDs.
Combined Library Services Desk: Round Table Discussion
Presentation for a round table discussion at the 2013 Cross Timbers Library Collaborative (CTLC) Conference. This presentation discusses combining library service desks.
A Criterion-Referenced Analysis of Form F of the Standardized Bible Content Tests of the American Association of Bible Colleges
The purposes of this study were to: (a) analyze subjects' responses from Form F of the Standardized Bible Content Tests of the American Association of Bible Colleges by factor analysis and the Rasch measurement model and (b) determine dimensionality of Form F, determine the correlation to the Literal, Anti-literal, Mythological Scales, and determine the best criterion-referenced test design of Form F using Rasch measurement procedures. Volunteers from a purposefully selected sample of nine colleges from the American Association of Bible Colleges participated in the study. One research instrument with five demographic questions, the Standardized Bible Content Test Form F, and the Literal, Anti-literal, and Mythological Scales was administered to 179 volunteer graduating seniors. Frequencies and percentages of responses were computed for the demographic questions. Mean scores on the Literal, Anti-literal, and Mythological Scales were computed for gender and religious affiliation. Principal components analysis of Form F with varimax rotation and list-wise deletion of missing data was used to assess the dimensionality of Form F. Correlations between scores on the Literal, Anti-literal and Mythological Scales and scores from the principal components analysis of Form F were computed. Dunn's multiple comparison procedures were used to test for statistical significance. Rasch-Model measurement analysis of the scales extracted by principal components analysis was accomplished to obtain suggested target description, test design, variable definition, and item calibration.
Body Image as Mediated by Age, Sex, and Relationship Status
Traditionally, body image research has focused on young women. However, there are indications of cultural shifts which extend physical appearance pressures to both men and women, as well as to middle-aged and older adults. Two hundred and ten subjects were administered objective body image measures including the Figure Rating Scale, the Body Shape Questionnaire, and the Multidimensional Body-Self Relations Questionnaire, as well as projective measures including the Holtzman Inkblot Technique and the Draw-A-Person. The NEO-Five Factor Inventory and the Social Anxiety Subscale were also used to explore variables which might covary with body image. A 3 X 2 X 2 Multivariate Analysis of Covariance (MANCOVA) was utilized with social desirability as the covariate.
An Investigation of the Perception of Delivered Quality at Different Levels of Organizational Hierarchy in Services
The overall purpose of this research was to add to existing theory of quality pertaining to the service provider's perception of quality. Quality in the service industry is difficult to assess because of the intangible, heterogeneous and labor intensive nature of services. In addition, personnel have varying perceptions of delivered quality based on their position within the organizational hierarchy. This study enhanced the Service Quality Model developed by Zeithaml, Berry, and Parasuraman (1988). An additional gap ("gap 6") was hypothesized and investigated. This gap describes the differences in perceived delivered quality by employees at different organizational levels (e.g., managerial, supervisory, and non-management employees) across different market segments. The researcher proposed that "gap 6" has a significant impact on total perceived delivered quality. The survey instrument addressed five dimensions of overall quality: tangibles, reliability, responsiveness, assurance, and empathy. The survey was administered to employees from hotels representing three market segments located within the same metropolitan area and managed by the same company. A 3 X 3 factorial design was used with three organizational levels (managers, supervisors, and hourly employees) and three lodging market segments (luxury, business-traveller, and long-term/suite). Data analyses included descriptive statistics, analysis of variance (ANOVA), and Tukey's Multiple Comparison Test.
Combining Circulation and Reference Desks into a Single Service Point
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses a project of combining circulation and reference desks into a single service point at the University of North Texas (UNT) Libraries.
Managing Serials in the UNT Libraries Digital Collections
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses serials in the UNT digital collections, including ways of finding/browsing serials, how we describe them in the metadata, and examples of various exceptions.
Texas Documents and Government Publications available in The Portal to Texas History
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference. This presentation discusses Texas documents and government publications available in The Portal to Texas History.
The Challenge of Open Access and the Humanities
Presentation for the 2014 Cross Timbers Library Collaborative (CTLC) Annual Conference, as part of the 'Emerging Opportunities in Open Access' interactive panel session. This presentation discusses the challenges of open access and the humanities.
The Undergraduate Teaching of Archetypal Patterns in the Writings of Alice Walker
Significant passages in Alice Walker's writings give evidence of archetypal patterns from Carl Jung and feminine archetypal patterns from Annis Pratt. Since a knowledge of archetypal patterns can influence the total understanding of aspects of Walker's writings, a study of these patterns in the undergraduate classroom benefits the student and opens up another system of analyzing writings, particularly writings by African-American women.