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  Partner: UNT Libraries
 Decade: 2010-2019
[Handout to Accompany Poster on Implementation of a New Date/Time Standard]
Handout with supplementary information to accompany the poster "Implementation of a New Date/Time Standard in Digital Library Metadata." In includes examples of dates that meet Extended Date/Time Format (EDTF) standards, examples of problems encountered when normalizing date displays for users, additional statistics related to already-valid dates in the digital collections at the time that the standards were formally adopted, and links to online materials. digital.library.unt.edu/ark:/67531/metadc159536/
Student-Centered Value Research: Assessment activities of the UNT Libraries
This presentation discusses student-centered value research and the assessment activities of the UNT Libraries. The UNT Libraries value research initiatives provide a means of measuring the Libraries' contribution to UNT's strategic goals. digital.library.unt.edu/ark:/67531/metadc159523/
Scanning TRAIL Project Technical Reports: A Workflow for a Large-Scale Collaborative Digitization Effort
Poster illustrating the workflow used in the University of North Texas (UNT) Digital Projects Unit to digitize large numbers of TRAIL (Technical Report and Image Library) documents. The poster outlines five stages: [1] "Inventory," in which staff account for items received and route un-cut reports for disbinding before adding them to the scanning queue, [2] "Scanning," in which regularly-sized pages are scanned on a duplex scanner and fold-out pages are scanned on flatbed or planetary scanners, [3] "Processing," in which files are deskewed, resized, compressed, rotated, etc., and quality control checks identify errors, [4] "Metadata," in which the MARC records for the reports are converted into XML and a metadata creator fills in additional fields, and [5] "Online," in which reports are publicly available on the UNT Digital Library. digital.library.unt.edu/ark:/67531/metadc159538/
[Handout to Accompany Poster on Scanning TRAIL Project Technical Reports]
Handout with supplementary information to accompany the poster "Scanning TRAIL Project Technical Reports: A Workflow for a Large-Scale Collaborative Digitization Effort." In includes a brief overview of the project, a list of hardware and software used in the project, and a detailed list of the steps for each stage of the process (Inventory, Scanning, Processing, Metadata, and Upload). digital.library.unt.edu/ark:/67531/metadc159537/
The Denton Declaration: An Open Data Manifesto
This poster presentation discusses the Denton Declaration, an open data manifesto, and describes the process of developing the Declaration. digital.library.unt.edu/ark:/67531/metadc159525/
Digital Curation Micro-Applications: Digital Lifecycle Management with AutoHotkey
This poster discusses open source software tools coded with AutoHotkey that the UNT digital libraries group has developed for digital curation during the pre-ingest stage of the digital resource lifecycle. digital.library.unt.edu/ark:/67531/metadc159530/
Mapping the Southwest Project: Putting the Region's Maps Online
This poster discusses the Mapping the Southwest Project, involving putting our region's maps online. The poster includes background information on the project, the project plan, workflow and equipment, and the impacts and lessons learned. digital.library.unt.edu/ark:/67531/metadc159528/
Reducing Service Points in the Academic Library: How to Provide Quality Customer Service in the Face of Budget Cuts
This paper discusses how to provide quality customer service in the face of budget cuts. Abstract: Most academic libraries have been experiencing cutbacks in staff and resources and are expected to do more with less. In response to these cutbacks, the University of North Texas (UNT) Libraries came up with a plan to reduce the number of staffed service points. By the end of the Spring 2012 semester the UNT Libraries had successfully merged nine service points into three: two service desks at our main library and one at our science library. This paper will present an overview of the steps the UNT Libraries Public Services Division took to effectively manage these mergers. It will describe the methods used to cross train library support staff, and provide suggestions for other libraries who may also be considering streamlining their service points. digital.library.unt.edu/ark:/67531/metadc159524/
Utilizing Digital Library Infrastructure to Build Modern Research Collections
This keynote presentation covers the opportunities that digital library infrastructure offers if utilized effectively as a tool to build novel research collections. It highlights examples from the UNT Libraries and other institutions, which demonstrate these concepts. digital.library.unt.edu/ark:/67531/metadc159539/
How Digital Libraries can Create a Culture of Open Access on Campus
This panel presentation discusses how digital libraries can create a culture of open access on campus. Five panelists discuss their perspectives, strategies, challenges, and progress. digital.library.unt.edu/ark:/67531/metadc159535/
"Mapping the Southwest" Project: Collaboration for Curation of Wide-format Items
This presentation discusses the 'Mapping the Southwest' project and the collaboration for curation of wide-format items. digital.library.unt.edu/ark:/67531/metadc159529/
Understanding large digital collections and learning new tools: The Texas Digital Newspaper Program Visualizations
This presentation discusses the Texas Digital Newspaper Program visualizations and learning new tools for digital collections. Abstract: As digital library collections continue to increase in size it becomes necessary to use new tools and techniques to communicate and understand the rich content held in these collections to curators and end users. This presentation discusses the use of the D3 Javascript library to visualize and provide new insight to the Texas Digital Newspaper Program (TDNP) hosted by The Portal to Texas History as a case study. The collection contains over one million pages of Texas newspapers from the 1830's to modern day covering over one hundred counties, and hundreds of titles. An overview of existing newspaper visualization projects will be presented as well as an explanation of how the presenters prepared the data for these visualizations using the publicly available TDNP OAI-PMH repository and the open source D3 Javascript library. digital.library.unt.edu/ark:/67531/metadc159531/
Implementation of a New Date/Time Standard in Digital Library Metadata
Poster illustrating issues involved in fully-implementing the Extended Date/Time Format (EDTF) standards in the UNT Libraries' digital collections, comprising The Portal to Texas History, the UNT Digital Library, and The Gateway to Oklahoma History. The first section, "Analysis of Dates," provides statistics related to the number of valid entries among existing date instances in the system, the most common issues with non-EDTF valid dates, and the number of valid dates after simulating automated conversions for adjusting some non-valid dates. The second section illustrates the written guidelines provided for metadata creators and the embedded validation tools that alert persons entering metadata when the dates do not meet EDTF standards. The third section includes screenshots to show date normalization in the user interface, to make formatted dates more accessible, and the icon that is used when dates cannot be easily normalized, providing access to a glossary. digital.library.unt.edu/ark:/67531/metadc159532/
Texas Digital Newspaper Program Million Page Dataset
This dataset represents the first million pages of Texas newspapers added to The Portal to Texas History as part of the Texas Digital Newspaper Program. The dataset consists of 123,184 newspaper issues from 569 titles, comprising 1,000,003 pages. Additionally the 3,349,156 item uses associated with this dataset as of April 7, 2013 are included. digital.library.unt.edu/ark:/67531/metadc158400/
Metadata Analysis at the Command-Line
This article discusses metadata analysis. Abstract: Over the past few years the University of North Texas Libraries' Digital Projects Unit (DPU) has developed a set of metadata analysis tools, processes, and methodologies aimed at helping to focus limited quality control resources on the areas of the collection where they might have the most benefit. The key to this work lies in its simplicity: records harvested from OAI-PMH-enabled digital repositories are transformed into a format that makes them easily parsable using traditional Unix/Linux-based command-line tools. This article describes the overall methodology, introduces two simple open-source tools developed to help with the aforementioned harvesting and breaking, and provides example commands to demonstrate some common metadata analysis requests. All software tools described in the article are available with an open-source license via the author's GitHub account. digital.library.unt.edu/ark:/67531/metadc157309/
Workflow Tools for Digital Curation
This article discusses workflow tools for digital curation. Abstract: Maintaining usable and sustainable digital collections requires a complex set of actions that address the many challenges of various stages of the digital object lifecycle. Digital curation activities enhance access and retrieval, maintain quality, add value, and facilitate use and re-use over time. Digital resource lifecycle management is becoming an increasingly important topic as digital curators actively explore software tools that perform metadata curation and file management tasks. Accordingly, the University of North Texas (UNT) Libraries develop tools and workflows that streamline production and quality assurance activities. This article demonstrates two open source software tools, AutoHotkey and Selenium IDE, which the UNT Digital Libraries has adopted for use during the pre-ingest and post-ingest stages of the digital resource lifecycle. digital.library.unt.edu/ark:/67531/metadc157307/
Bibliography for "Encouraging Research and Publication among Academic Librarians"
This bibliography accompanies a presentation for the Library Management Institute summer conference. This bibliography contains citations for information related to encouraging research and publication among academic librarians. digital.library.unt.edu/ark:/67531/metadc157285/
Newspapers In The 21st Century: How NDNP State Projects Deliver The News
This poster discusses newspapers in the 21st century and how the National Digital Newspapers Program (NDNP) state projects deliver the news. NDNP Awardees' are creating their own digital newspaper sites to provide free access to content digitized through NDNP and beyond. digital.library.unt.edu/ark:/67531/metadc155636/
Beyond Google: Promoting Digitized Primary Sources in First-Year Writing
This presentation discusses promoting digitized primary sources in research. Topics include the background and interest in the subject, key term definitions, examples of items and usage, National Endowment for the Humanities (NEH) K-12 teaching resources, and FYC application. digital.library.unt.edu/ark:/67531/metadc155618/
In With The New: Adapting To Change Using ILLiad
This presentation discusses adapting to change using ILLiad. Abstract: Interlibrary Loan at the University of North Texas Libraries has experienced many changes during the past year. We've organized into the Access Services Department, moved to a new office, and incorporated fresh techniques for providing customer service. This session will describe how we have incorporated changes through ILLiad, through services for our customers, and by cooperation among Access Services staff. Examples: Implementing Article Exchange and Odyssey for Lending, starting a faculty book delivery service, and loaning media items through ILL. digital.library.unt.edu/ark:/67531/metadc155625/
Teaching RDA: A First Attempt
This presentation discusses teaching Resource Description and Access (RDA). The author describes a first attempt at teaching two students RDA as part of a formal library-school class on 'Special Problems in Music Cataloging.' digital.library.unt.edu/ark:/67531/metadc155615/
Newspaper Metadata Manual
This document describes the process that the University of North Texas (UNT) Libraries' Digital Newspaper Unit (DNU) uses to create metadata for the scanned newspapers published on The Portal to Texas History as part of the Texas Digital Newspaper Program (TDNP). High quality metadata helps users find what they want more quickly. Over time, accurate descriptive metadata fosters trust among the Portal's user community. digital.library.unt.edu/ark:/67531/metadc155637/
Improving Access to Web Archives through Innovative Analysis of PDF Content
This presentation discusses improving access to web archives through innovative analysis of PDF content. It includes a background of the End of Term (EOT) 2008 Presidential Web Archive, a collaborative web archiving project, collection development with web archive content, and the workflow and processes involved in these projects. digital.library.unt.edu/ark:/67531/metadc155638/
Improving Access to Web Archives through Innovative Analysis of PDF Content
This paper discusses improving access to web archives through innovative analysis of PDF content. Abstract: In 2008 five United States institutions collaborated to archive the U.S. federal government Web presence: the Library of Congress, the Internet Archive, the California Digital Library, the Government Printing Office, and the University of North Texas (UNT). Their objective was to document the changes coincident with the shift in leadership of the U.S. executive branch. The five partners identified key resources from the U.S. .gov Top Level Domain and completed crawls from September 2008 until March 2009. The resulting End of Term (EOT) 2008 Web Archive, a 16 TB dataset, was distributed to partners interested in providing local services and access to the archive. The UNT Libraries investigated Portable Document Format (PDF) files, a class of content many information professionals associate with the traditional notion of “discrete documents”. Over four million unique PDF documents were extracted from the Archive and a series of metadata and information extraction processes were conducted for each document. Additionally, derivative raster images of the first page of each document were created. These metrics were ingested into a database for further analysis, which brought to light previously hidden characteristics of the federal government’s Web-published content. The paper discusses the overall workflow and describes the tools used to extract document features. Findings suggest opportunities for the development of retrieval tools that will provide new ways of selecting content and building collections from large Web archives. digital.library.unt.edu/ark:/67531/metadc155622/
Journal of Applied Rehabilitation Counseling, Volume 43, Number 4, Winter 2012
Access: Use of this item is restricted to the UNT Community.
Journal of Applied Rehabilitation Counseling is the official publication of the National Rehabilitation Counseling Association (NRCA). The JARC is published quarterly, Spring, Summer, Fall and Winter. JARC is a journal of opinion and research in professional rehabilitation counseling and addresses the needs of individuals employed in a wide variety of work settings and with wide-ranging professional interests. In the current issue (Vol. 43, No.4), the following four articles were included: Professional Bereavement: A Qualitative Examination of Rehabilitation Counselors in Grief (Alan Davis, Shawn Saladin, Sandy Hansmann, and Nicole Velgersdyk). Posttraumatic Growth: Helping Clients Overcome Trauma (Sena Moran, Eileen Burker, and Judy Schmidt) Vocational Experiences of College-Educated Individuals with Visual Impairments (Mary-Anne M. Joseph and Mona Robinson) Psychosocial Aspects of Parenting a Child with Autism (Cynthia A. Serrata) Predictors of Employment Among Native Americans (Corinne E. Harrington, Chung-Fan Ni, Diane Liebert, Felicia Wilkins-Turner, and Valerie Ellien) digital.library.unt.edu/ark:/67531/metadc155609/
Journal of Applied Rehabilitation Counseling, Volume 44, Number 1, Spring 2013
Access: Use of this item is restricted to the UNT Community.
Journal of Applied Rehabilitation Counseling is the official publication of the National Rehabilitation Counseling Association (NRCA). The JARC is published quarterly, Spring, Summer, Fall and Winter. JARC is a journal of opinion and research in professional rehabilitation counseling and addresses the needs of individuals employed in a wide variety of work settings and with wide-ranging professional interests. In the current issue (Vol. 43, No.4), the following four articles were included: Coordination in Transition Planning: The IEP/IPE Interface (Daniel Steere and Caroline DiPipi-Hoy) Families and Uncertainty: Using Problematic Integration Theory in Transition Services (Lori Magnuson) Independent Living Services for Deaf and Hard of Hearing Students: Results of a Nationwide Survey of School Programs (Pamela Luft) The Apple iPadTM as an Innovative Employment Support for Young Adults with Autism Spectrum Disorder and Other Developmental Disabilities (Doris Adams Hill, Leigh Belcher, Holly E. Brigman, Scott Renner, and Brooke Stephens) Predictors of Employment and College Attendance Outcomes for Youth in Transition: Implications for Policy and Practice (Fabricio E. Balcazar, Ashmeet Oberoi, and Joanna M. Keel). digital.library.unt.edu/ark:/67531/metadc155610/
Don't judge a book by its Cover: The Human Library
This poster introduces the lecture series UNT Speaks Out on the Human Library. Instead of print or electronic media, the books in this library will be human beings who have experienced prejudice due to issues such as race, gender, disability, ethnic origin, sexual preference, mental illness or lifestyle choices. The "books" at this event are people who have volunteered to challenge prejudice through respectful conversation with members of the UNT campus and the greater Denton community who borrow them for fifteen to thirty minute conversation. The Human Library concept was developed in 2000 by members of the Danish Youth Organization Stop the Violence. It is now operational in more than 60 countries. digital.library.unt.edu/ark:/67531/metadc152431/
Brown bag on iConference - 2013
This presentation was created for a brown bag luncheon about the 2013 iConference. It includes discussion on participants, the venues, programs, the role of the UNT Libraries, and reflections on the event. digital.library.unt.edu/ark:/67531/metadc152427/
Classification Of The End-Of-Term Archive: Extending Collection Development Practices To Web Archives
This is the final report for the EOTCD project, which is formally titled 'Classification of the End-of-Term Archive: Extending Collection Development Practices to Web Archives.' The project commenced December 1, 2009 and ended November 30, 2012. The overview includes background information about the End of Term (EOT) 2008 Archive and a brief description of the activities conducted in the project's four work areas. Following the Overview there are three sections: Goals Accomplished; Significant Findings and Accomplishments; and Project Achievements. digital.library.unt.edu/ark:/67531/metadc152437/
UNT Speaks Out on Alzheimer's Disease and Dementia
This poster introduces the faculty lecture series UNT Speaks Out on Alzheimer's Disease and Dementia. This series features Dr. Meharvan Singh, professor and chair of the Department of Pharmacology and Neurosciencea at the UNT Health Science Center, Dr. Bert Hayslip, regents professor in the Department of Psychology, and Kyle Page, a doctoral candidate in the Department of Psychology. digital.library.unt.edu/ark:/67531/metadc152425/
Differences in Experiences and Outcomes of Transfer and Native Students in an Elementary Education Program: an Exploratory Study
This research targeted elementary education graduates of a large Southwestern university who were transfer students, and compared them to native students on selected variables. These variables included retention in teaching, and perception of supports and obstacles at the university. The sample consisted of 143 respondents: 73 native and 70 transfer students. Data were collected through submission of online surveys and through postal mail. Quantitative and qualitative analyses were used to answer the research questions. Astin’s input-environment-outcome model provided the conceptual and theoretical framework for this study. Native and transfer students considered student teaching to be the “most helpful” course or service during their time at the university, yet both felt they lacked elements of preparation for teaching in the real world. Transfer students reported the following as supports during their transition from community college to university: academic advising, finances, support network, and the university. They reported these obstacles: university bureaucracy, credit transfer, expenses, and adapting to campus. There was no significant difference between the two groups’ intentions to remain in teaching (p = .249), and a statistically non-significant higher percentage of transfer students than native students reported to be teaching at the time of survey completion (p = .614). The findings support further inquiry into support systems for transfer students, as well as further examination of teacher preparation curricula. digital.library.unt.edu/ark:/67531/metadc149677/
Soul Line Dancing Among African American Women in the Church: an Expectancy-value Model Approach
Guided by the expectancy value model of achievement choice, this study examined the relationships among expectancy value constructs (expectancy related beliefs and subjective task values), effort and intention for future participation in a culturally specific dance, soul line, among African American adult women in the church setting. Participants were 100 African American women who were members of the women’s ministries from four predominantly African American churches in the Dallas/Ft. Worth metropolitan area. Participants completed a 20-minute soul line session and responded to survey questions, validated in previous research, assessing their expectancy-related beliefs, subjective task values, effort, intention for future participation and physical activity. This was the first study to use the expectancy value model as a guide to determine motivations attached to physical activities among African American adult women. Usefulness, a component of subjective task values, emerged as a predictor of intention for future participation. Eighty-one percent of the women did not meet physical activity guidelines for aerobic activity. Of those inactive women 60% indicated an interest in doing soul line dancing often at their church after one short exposure to the activity as indicated by the strongest possible response to both intention questions. A slightly smaller percent of the active women provided with a strong positive response for future intention. These findings suggest that soul line dancing is a practical avenue to increase physical activity among African American women in the church. Future research should test this theoretical model on a wider variety of individuals who are sedentary to physically active, measure actual participation, and directly measure BMI and physical activity. digital.library.unt.edu/ark:/67531/metadc149658/
A Smooth-turn Mobility Model for Airborne Networks
In this article, I introduce a novel airborne network mobility model, called the Smooth Turn Mobility Model, that captures the correlation of acceleration for airborne vehicles across time and spatial coordinates. E?ective routing in airborne networks (ANs) relies on suitable mobility models that capture the random movement pattern of airborne vehicles. As airborne vehicles cannot make sharp turns as easily as ground vehicles do, the widely used mobility models for Mobile Ad Hoc Networks such as Random Waypoint and Random Direction models fail. Our model is realistic in capturing the tendency of airborne vehicles toward making straight trajectory and smooth turns with large radius, and whereas is simple enough for tractable connectivity analysis and routing design. digital.library.unt.edu/ark:/67531/metadc149603/
Working Baby Boomers’ Knowledge of Retiree Health Benefits and Costs
This study was exploratory in nature, with the purpose of examining the relationships between working Baby Boomers’ knowledge of retirement health benefits and health costs and actions they have taken to prepare for retirement. An online survey was completed by 209 Baby Boomers who are employed by three city governments in the Dallas-Fort Worth Metroplex. The research showed that health benefits knowledge does not predict retirement preparation but that Baby Boomers who demonstrate higher levels of knowledge-seeking behavior are more likely to undertake retirement preparation, specifically by purchasing an annuity. Among public sector working Baby Boomers, retirement preparation activities are found to be minimal. Age was found to predict knowledge-seeking behavior, in that older vs. younger Baby Boomers are more likely to engage in knowledge-seeking behavior related to retirement preparation. Current knowledge about health benefits does not predict retirement preparation. digital.library.unt.edu/ark:/67531/metadc149607/
The Art Car Spectacle: a Cultural Display and Catalyst for Community
This auto-ethnographic study focuses on Houston’s art car community and the grassroots movement’s 25 year relationship with the city through an art form that has created a sense of community. Art cars transform ordinary vehicles into personally conceived visions through spectacle, disrupting status quo messages of dominant culture regarding automobiles and norms of ownership and operation. An annual parade is an egalitarian space for display and performance, including art cars created by individuals who drive their personally modified vehicles every day, occasional entries by internationally renowned artists, and entries created by youth groups. A locally proactive public has created a movement has co-opted the cultural spectacle, creating a community of practice. I studied the events of the Orange Show Center for Visionary Art’s Art Car Weekend to give me insight into art and its value for people in this community. Sources of data included the creation of a participatory art car, journaling, field observation, and semi-structured interviews. The first part is my academic grounding, informed by critical pedagogy and socially reconstructive art practices. The second part narrates my experiences and understandings of the community along with the voices of others. Dominant themes of exploration include empowerment, community, and art. I examine the purposes for participation by artists, as well in the practices of audiences and organizations that provide support for this art form. My findings have significant implications community-based art education and k-12 classroom educators. Relational and dialogic approaches to making art, teaching, and researching are tied to problem-posing education as a recommendation for art education. digital.library.unt.edu/ark:/67531/metadc149669/
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/
Homeland Security Roles and Responsibilities: an Examination of Texas Police Chiefs’ Perceptions
Research has shown that the police industry has entered into an era of homeland security. However, whether the core functions of policing have significantly changed since September 11, 2001, has been the topic of considerable debate. Using secondary data, the research identifies variables that are most influential in predicting whether Texas police chiefs understand their departments’ homeland security roles and responsibilities. The data was originally obtained in 2007 through self-administered surveys of police chiefs attending the Texas Chief Leadership Series (TPCLS) and the New Chief Development Program (NCDP). digital.library.unt.edu/ark:/67531/metadc149673/
Factor Analysis of the Spouse Observation Checklist-revised Using Attachment Theory As an Organizational Framework
The purpose of the current study was to investigate the factor structure of the Spouse Observation Checklist-Revised using attachment theory as an organizational framework. The study used archival data from a community sample of 92 heterosexual childless couples married 1-5 years and 4 lesbian couples (N = 192). Separate exploratory factor analysis on the Perception of Self-Behavior and Perception of Partner-Behavior items revealed symmetrical 4-factor structures with factors reflecting emotional support, physical intimacy, instrumental support, and disengagement. Separate analyses examined associations of the four identified factors with the Experiences in Close Relationships Scale and the Dyadic Adjustment Scale to begin to place the SOC-R within a nomological network. digital.library.unt.edu/ark:/67531/metadc149605/
An Interactive Tool to Investigate the Inference Performance of Network Dynamics From Data
Network structure plays a significant role in determining the performance of network inference tasks. An interactive tool to study the dependence of network topology on estimation performance was developed. The tool allows end-users to easily create and modify network structures and observe the performance of pole estimation measured by Cramer-Rao bounds. The tool also automatically suggests the best measurement locations to maximize estimation performance, and thus finds its broad applications on the optimal design of data collection experiments. Finally, a series of theoretical results that explicitly connect subsets of network structures with inference performance are obtained. digital.library.unt.edu/ark:/67531/metadc149617/
Drive Level Dependence of Advanced Piezoelectric Resonators
Resonators are one of the most important parts of electronic products. They provide a stable reference frequency to ensure the operation of these products. Recently, the electronic products have the trend of miniaturization, which rendered the size reduction of the resonators as well [1]. Better design of the resonators relies on a better understanding of the crystals' nonlinear behavior [2]. The nonlinearities affect the quality factor and acoustic behavior of MEMS (Micro-Electro-Mechanical-System) and nano-structured resonators and filters [3]. Among these nonlinear effects, Drivel Level Dependence (DLD), which describes the instability of the resonator frequency due to voltage level and/or power density, is an urgent problem for miniaturized resonators [2]. Langasite and GaPO4 are new promising piezoelectric material. Resonators made from these new materials have superior performance such as good frequency-temperature characteristics, and low acoustic loss [2]. In this thesis, experimental measurements of drive level dependence of langasite resonators with different configurations (plano-plano, single bevel, and double bevel) are reported. The drive level dependence of GaPO4 resonators are reported as well for the purpose of comparison. The results show that the resonator configuration affects the DLD of the langasite resonator. Experiments for DLD at elevated temperature are also performed, and it was found that the temperature also affects the DLD of the langasite resonator. digital.library.unt.edu/ark:/67531/metadc149690/
Teacher Perceptions of the Flipped Classroom: Using Video Lectures Online to Replace Traditional In-class Lectures
Advancements in media technologies have resulted in increased student usage causing teachers to struggle to be able to engage and hold student’s interest in a typical classroom. As students’ needs change, the field of education changes. One strategy that is gaining in popularity among teachers is the implementation of the “flipped classroom” also known as the “inverted classroom” or “reverse instruction” - a method incorporates technology to “flip” or “reverse” what is typically done in class with what is typically done as homework. Through teacher interviews of eight core teachers, this study attempts to discover teacher perceptions of the use of this method. Results of the study reveal that perceptions of the method are more positive among teachers who typically use lecture as a primary mode of information dissemination. digital.library.unt.edu/ark:/67531/metadc149663/
Teacher Perceptions of Inclusionary Practices for Students with Emotional/behavioral Disorders
The present study examined variables affecting teachers’ perceptions of inclusionary practices for students with emotional and behavioral disorders (E/BD) in three areas: inclusion of students with E/BD, behaviors of students with E/BD, and teacher efficacy. Teachers listed in the database of one Education Service Center located in north central Texas which represented 66 school districts, completed the online Survey on Teacher Perceptions of Inclusionary Practices for Students with Emotional/Behavioral Disorders. Findings of the study showed that (a) teaching experience was a significant predictor of teacher’s perceptions regarding the inclusion of students with E/BD, (b) student age was a significant predictor of teachers’ perceptions regarding behaviors of students with E/BD, (c) special education teachers are more likely to have a higher degree of perceptions on the subscale that measures their efficacy than general education teachers, and (d) the number of special education courses taken by general education teachers did not have a significant effect on teachers’ perceptions. digital.library.unt.edu/ark:/67531/metadc149629/
Factors Influencing Psychological Empowerment of Nurse Aides in Nursing Homes
The purpose of this study is to identify predictors of psychological empowerment among nurse aides in nursing homes. Five structural factors (information exchange, decentralization of resources, co-worker support, supervisor support, and availability of training) and four control factors (age, sex, level of education, and race) are analyzed using multivariate linear regression to examine their effects on psychological empowerment. Two of the five structural factors, decentralization of resources and supervisor support, are shown to positively influence psychological empowerment. Nursing home managers can consider developing and implementing procedures that decentralize resources and demonstrate supervisor support in order to increase psychological empowerment. Based on the findings of this study theory and practice might benefit from additional study of decentralization of resources and supervisor support. digital.library.unt.edu/ark:/67531/metadc149666/
Value Development in Emerging Adulthood: the Influence of Family
The purpose of this study was to better understand value development in an emerging adult, college student population, and to further define, identify and clarify family characteristics that influence values. Theories have sought to examine the developmental influences in emerging adulthood, but little research exists examining the role of the family, particularly in regards to value development. The current study reviewed the literature on emerging adulthood, values, and self-determination theory with attention to family influence. Questions addressed in this study included: 1) are perceived parent values predictors of emerging adult values, 2) will the quality of communication between parents and emerging adults and the presence of an emotionally supportive relationship with both mother and father moderate the relationship between the perception of parent values and emerging adult values, and 3) does the family environment influence the types of values emerging adults perceive to be important to their parents? For this purpose, 200 college students completed 5 different self-report questionnaires measuring the constructs of values, perceived parent values, family environment variables, family communication variables, and quality of relationship with both father and mother. Parents of college students completed a self-report questionnaire measuring their socialization values for their children and a questionnaire measuring family communication; however, the small number of parent responses prevented the data from being used in statistical tests. Multiple regression analyses indicated that perceived parent values predicted emerging adult values. Moderation analyses showed that family communication and the quality of the relationship with father and mother did not strengthen the relationship between perceived parent values and emerging adult values. Lastly, a warm family environment and family activities were significantly related to how important emerging adults’ perceived intrinsic values to be to both their father and mother. Family structure was significantly positively correlated the importance emerging adults’ perceived their fathers to place on extrinsic values, but not their mothers. Implications for the findings of the current study will be discussed, as well as, limitations and future research recommendations. digital.library.unt.edu/ark:/67531/metadc149689/
An Assessment of Fruit Offerings for 7Th and 8Th Grade Students in Texas
Childhood obesity in America is reaching epidemic proportions. This study explored whether daily online lunch menu information was sufficient to enable parents to advise their children about healthy and unhealthy menu choices in 350 Texas middle schools and whether online menu information strongly correlated with the descriptions of the offerings given by 52 school cafeteria managers in telephone interviews. Although schools are making efforts to describe their offerings, they are not vigorously taking advantage of the opportunity to aggressively inform or educate. They are not coding their descriptions in such a way as to explicitly brand food as healthy or unhealthy. They are also not labeling food as generally required by law for consumer services that provide food (except for the fresh produce that lines supermarket shelves). Instead, they only briefly describe what they are serving in the way of fruit in one or two word snippets. Finally, cafeteria managers’ online descriptions were inconsistent with what they described in interviews. Online and verbal descriptions were sometimes contradictory, raising questions about the accuracy of either type of description. digital.library.unt.edu/ark:/67531/metadc149649/
Hypoxia and the Development of Endothermic Capacity in Chickens (Gallus Gallus)
Adult chickens employ endothermy – internal generation of heat that maintains a constant body temperature (Tb). Prior to hatching, chicken embryos are ectothermic - controlling Tb by external heat sources. Upon hatching, the hatchling transitions from an ectotherm to an endotherm that has been shown to be delayed by hypoxia. In this study, whole animal oxygen consumption () and liver, heart, and skeletal muscle citrate synthase activity (CSA) and were measured during this transition to endothermy in chickens incubated in normoxia and hypoxia (15% O2). The only significant differences in occurred in 48 hour old hatchlings where was lower in normoxic hatchlings. There were no differences in CS activity between age and incubation oxygen levels. Additionally, preliminary 2-D protein gels of embryo and hatchling liver show changes in the proteome upon hatching. Results suggest that hypoxia had no significant effect on CSA and a minimal effect on . digital.library.unt.edu/ark:/67531/metadc149643/
Jacques Ibert: an Analytical Study of Three Movements From Histoires
Although many biographical studies are available on Jacques Ibert, few contain significant analytical commentary. In this study I examine three movements from Ibert’s Histoires for piano which was composed between 1920 and 1921 and was premiered in 1923. The three movements are “La menuese de tortues d’or,” “Le petit âne blanc,” and “La marchande d’eau fraîche.” I primarily use Schenkerian analysis to identify characteristics of Ibert’s compositional language. Significant aspects of impressionism and Debussian influence are also identified as related elements to my analysis. Many expected elements of Schenkerian theory are absent in Histoires. The conclusions of this study are consistent with those of other analysts who apply Schenkerian methodology to impressionist music such as Richard Parks, Adele Katz, Felix Salzer, and Edward Laufer. digital.library.unt.edu/ark:/67531/metadc149681/
A Storm Water Runoff Investigation Using Gis and Remote Sensing
Environmental controls are becoming more and more expensive to implement, so environmental management is becoming more technologically advanced and efficient through the adoption of new techniques and models. This paper reviews the potential for storm water runoff for the city of Denton, Texas and with the main objective to perform storm water runoff analyses for three different land use datasets; each landuse dataset created with a different methodology. Also analyzed was the difference between two North Central Texas Council of Governments land use datasets and my own land use dataset as a part of evaluating new and emerging remote sensing techniques. The results showed that new remote sensing techniques can help to continually monitor changes within watersheds by providing more accurate data. digital.library.unt.edu/ark:/67531/metadc149613/
Chronic Myopia: Foundations of Contemporary Western Perspectives on the Balkans
The construction of Southeastern Europe in Western imagination is the result of assertions of imperial power from some of the first recorded histories onward to modern time. Instead of providing alternative narratives gaping differences in time period, literary genres and geographical origins ballast stereotypical racist tropes and derogatory images of the countries of Southeastern Europe. For example, Roman histories, secondary historical works, twentieth century travel literature, and Central Intelligence Agency estimates all exhibit the same perception. The narrative created by these accounts is limited, remarkably racist and counterfactual. While there has been an abundance of new scholarship aimed at debunking the myths surrounding the area, much of the revisionist histories focus on placing blame, proving ethnogenesis, and serving political purposes. Understanding how the sources continue to influence perception is a pivotal step to understanding Southeastern Europe. digital.library.unt.edu/ark:/67531/metadc149619/
Practical Astronomy
This dissertation is a collection of poems preceded by a critical preface. The preface considers Anthony’s Hecht’s long poem, “The Venetian Vespers,” and the ways in which the temporally unsettled situation of the poem’s speaker parallels a problem facing narrative-meditative poets. The preface is divided into two main sections that explore divisions of this larger conflict. The first discusses the origins and effects of the speaker’s uprootedness in time, and the ways in which he tries to both combat and embrace this dislocation by temporarily losing himself in the immediacy of observing visual art. In this section I connect the dilemma of the speaker, who wishes to escape his memory by focusing outwards, to the dilemma of a representational poet who, despite his position towards the past, must necessarily confront or recollect memories and emotions in order to create authentic descriptions or characters. The second section focuses on the production and appreciation of artistic works (both visual and literary) and how the meaning, production and appreciation of beauty are inseparable from its existence within the physical limits of time. Here I discuss the significance of Hecht’s character who is surrounded with beauty yet describes himself as a person who only observes and does not create anything. Through this character, I argue that Hecht reveals a fundamental conflict that exists between artistic creation and chronological time, and that his poem embodies a particular and paradoxical view of beauty that resonates deeply with the motivations and struggles of writing poems. digital.library.unt.edu/ark:/67531/metadc149687/
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