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Texas Digital Newspaper Program
1,362
The Greensheet
986
UNT Theses and Dissertations
402
UNT Scholarly Works
128
The Monitor
56
Tocker Foundation Grant
53
Texas Borderlands Newspaper Collection
52
Hudspeth County Area Newspaper Collection
52
The Suburbia News
52
Copperas Cove Leader Press
49
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A Comparative Analysis of Web-based Machine Translation Quality: English to French and French to English
This study offers a partial reduplication of a 2006 study by Williams, which focused primarily on the analysis of the quality of translation produced by online software, namely Yahoo!® Babelfish, Freetranslation.com, and Google Translate. Since the data for the study by Williams were collected in 2004 and the data for present study in 2012, this gives a lapse of eight years for a diachronic analysis of the differences in quality of the translations provided by these online services. At the time of the 2006 study by Williams, all three services used a rule-based translation system, but, in October 2007, however, Google Translate switched to a system that is entirely statistical in nature. Thus, the present study is also able to examine the differences in quality between contemporary statistical and rule-based approaches to machine translation.
Date:
December 2012
Creator:
Barnhart, Zachary
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Ecological Significance and Underlying Mechanisms of Body Size Differentiation in White-tailed Deer
Body size varies according to nutritional availability, which is of ecological and evolutionary relevance. The purpose of this study is to test the hypothesis that differences in adult body size are realized by increasing juvenile growth rate for white-tailed deer (Odocoileus virginianus). Harvest records are used to construct growth rate estimates by empirical nonlinear curve fitting. Results are compared to those of previous models that include additional parameters. The rate of growth increases during the study period. Models that estimate multiple parameters may not work with harvest data in which estimates of these parameters are prone to error, which renders estimates from complex models too variable to detect inter-annual changes in growth rate that this simpler model captures
Date:
May 2012
Creator:
Barr, Brannon
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
What Are They Learning: a Study of Errors Produced During Behavior Acquisition Utilizing Two Prompting Procedures with a Cat
Prompting methods are common amongst animal trainers, both novice and experts. However, there is little empirical evidence to demonstrate the strengths or weaknesses of common prompting procedures. The current study assessed the strengths and weaknesses during behavior acquisition of two prompting methods, luring and targeting. Luring placed an edible directly in front of the animal which guided the animal through the desired behavior. Targeting, however used a target, an arbitrary object the animal has been trained to touch, guide behavior. A cat was trained, using each method, to walk around a flower. Walking around the right flower pot was trained using luring and walking around the left flower pot was trained using targeting. After both behaviors were acquired, a delay cue method was designed to transfer stimulus control. Later a combination of a delay cue and prompt fading was used. During acquisition the luring method acquired the behavior of walking around a pot more quickly with consistently fewer errors. During stimulus transfer the cat began independently initiating the behavior earlier with the target trained behavior and produced more correct behaviors after the verbal cue. Luring appeared to produce the faster behavior, but after stimulus transfer it could be concluded that …
Date:
August 2012
Creator:
Beasley, Robin Lynn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Mental Toughness: An Analysis of Sex, Race, and Mood
Mental toughness has become a focus for researchers as coaches, athletes, and others extol its influence in performance success. In this study I examined mental toughness among collegiate athletes, focusing on its potential relationship to different demographic variables and to the athletes’ mood. Two hundred seventy-two student-athletes representing 12 different sports from a southwestern NCAA Division I university, participated by completing the Sports Mental Toughness Questionnaire (SMTQ), the Brief Assessment of Mood (BAM), and providing demographic information. Analyses of variance (ANOVA) assessed differences in mental toughness scores by sex, race, scholarship status, and starting status. Significant differences in mental toughness emerged between Black – White, male – female, and full – partial – zero scholarship athletes. Pearson correlations showed mental toughness was significantly related to lower levels of anxiety, sadness, anger, confusion, fatigue, and total mood disturbance, and higher levels of vigor.
Date:
May 2012
Creator:
Beck, Nicholas M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Organizational History of The Portal to Texas History, 2012
This one page document is a brief organizational history for The Portal to Texas History for 2012. This document was used for grant submissions to state or federal funding agencies, or private foundations. This document reflects on strategic directions for the program, as well as the number of collaborative partners for the Portal and the number of historic documents in the digital library.
Date:
2012
Creator:
Belden, Dreanna
Object Type:
Text
System:
The UNT Digital Library
University of North Texas Libraries Grant History: 2000-2012
This document lists all grants given to the University of North Texas Libraries from 2000 to 2012. The projects that were funded by these grants are summarized.
Date:
2012
Creator:
Belden, Dreanna
Object Type:
Text
System:
The UNT Digital Library
The Impact of Digitizing Resources: Content Partner and User Perspectives
Presentation for the 2012 Digital Frontiers Conference. This presentation discusses research to measure the impact of digital assets in The Portal to Texas History.
Date:
September 21, 2012
Creator:
Belden, Dreanna & Murray, Kathleen R.
Object Type:
Presentation
System:
The UNT Digital Library
Measuring the Impact of Preserving Digital Assets
This presentation discusses measuring the impact of preserving digital assets. This presentation reports the initial findings of a study of the impact of digitizing assets, specifically: (a) a framework of impact areas and indicators and (b) findings for the Portal's content partners and users.
Date:
June 13, 2012
Creator:
Belden, Dreanna & Murray, Kathleen R.
Object Type:
Presentation
System:
The UNT Digital Library
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. …
Date:
August 2012
Creator:
Belkhouche, Mohammed Yassine
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Childhood Bereavement and Parents’ Relationship With Children
It has long been recognized that childhood bereavement is a risk factor for depression in adulthood. Research also has consistently demonstrated that parental depression is linked to poor parent-child relationship quality. The current study examined whether bereavement in childhood increases likelihood of current depressive symptoms among parents and explored whether this vulnerability in the parent then alters the quality of the parent-child relationship. Archival data for a sample of 86 families (N=176 parents) are drawn from the Family & Kid Connection project led by Dr. Shelley Riggs. Instruments utilized include the Background Information Questionnaire, the Symptom Assessment-45 Questionnaire, and the Parenting Relationship Questionnaire. Using the Actor-Partner Interdependence Model, Multilevel Modeling procedures explored the hypothesis that parental depression mediates the association between parents’ childhood bereavement and their perception of the parent-child relationship. Results show a significant relationship between parental (actor) depressive symptoms and parent-child attachment, indicating the need for therapeutic interventions targeting the parent-child relationship, and not just parents, for parents suffering from depression.
Date:
May 2012
Creator:
Benson, Karen M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
On the Removal of Download Access to Grateful Dead Soundboards from the Live Music Archive
Article on the removal of download access to Grateful Dead soundboards from the Live Music Archive.
Date:
August 1, 2012
Creator:
Berg, Jeremy
Object Type:
Article
System:
The UNT Digital Library
Never Odd Or Even: Using Temporal Structures In Composing Music For Dance
This study engages the collaboration of dance and music, focusing primarily on experiences in the production of a large scale collaborative concert entitled Never Odd or Even. Famous historical collaborations offer archetypal collaborative models, the more unconventional of which are applied to the pieces of the concert. Issues and observations regarding cross-influence, project evolution, and application of the collaborative models are engaged to determine effective means of collaboration given different circumstances. The key focus of the study, the temporal relationship between music and dance, is explored in great detail to determine three models for relating time between music and dance. These temporal relationship models are applied to the pieces and evaluated on effectiveness and potential strengths when applied to dance.
Date:
May 2012
Creator:
Bernardo, Daniel
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Investigating the Effects of Polypharmacy Among Elderly Patients with Diabetes on Glycemic Control and Clinical Outcomes in Home Health Care
The focus of this research study is glycemic control in the presence of multiple morbidities and polypharmacy in homebound individuals with Type 2 diabetes aged 65 years and older. The research method is a quantitative retrospective cohort study of discharged patients of a nonprofit community-based home health agency from January 1, 2010, to December 31, 2011, using OASIS data. Glycemic control is assessed using the hA1C laboratory test following the recommendation of the American Diabetes Association. The study documents a moderate significant association between glycemic control, polypharmacy and comorbid conditions, indicating that homebound individuals with Type 2 diabetes aged 65 years and older are less likely to have optimal glycemic control in the presence of multiple morbidities and polypharmacy. There continues to be a need for scientific research in this population cohort; and the dose-response association between antidiabetic therapy interventions designed to lower blood glucose levels in the presence of chronic disease and polypharmacy.
Date:
December 2012
Creator:
Bernier, Shelia Alathia
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Impacts of Postmodernity Factors on the Association Between Maternal Distress and Children's Delinquency Among Low-income Families
This study investigates the effects of postmodern factors on the relationship between maternal distress and children's delinquency. It seeks to understand the factors associated with distress levels of mothers whose children exhibit delinquency in order to potentially decrease the cost associated with mental health problems especially in mothers. Another goal of this study is to contribute to the sociological analysis of mental health problems which seem to be the reserved domain of the discipline of psychology and related subfields. The data came from the third wave of the 3-city study with N = 1835. The ages of the children range from 5 to 18 years old. The analysis of the data using regression analysis suggests children's delinquency significantly affects maternal distress in mothers. The study also indicates postmodernity factors did not moderate the association between maternal distress and children's delinquency. However, postmodern factors have significant, separate, and direct effects on maternal distress. For example, employment and religion have positive influences on maternal distress. The research points toward weakness in the postmodern perspective. It also underlines the importance of a sociological approach to the assessment and treatment of distress problems among mothers with low-income. Agencies working with low-income families should integrate …
Date:
December 2012
Creator:
Bessa, Yawo
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Between Comancheros and Comanchería: a History of Fort Bascom, New Mexico
In 1863, Fort Bascom was built along the Canadian River in the Eroded Plains of Territorial New Mexico. Its unique location placed it between the Comanches of Texas and the Comancheros of the Sangre de Cristo Mountains. This post was situated within Comanchería during the height of the United States Army's war against the Southern Plains Indians, yet it has garnered little attention. This study broadens the scholarly understanding of how the United States Army gained control of the Southwest by examining the role Fort Bascom played in this mission. This includes an exploration of the Canadian River Valley environment, an examination of the economic relationship that existed between the Southern Plains Indians and the mountain people of New Mexico, and an account of the daily life of soldiers posted to Fort Bascom. This dissertation thus provides an environmental and cultural history of the Canadian River Valley in New Mexico, a social history of the men stationed at Fort Bascom, and proof that the post played a key role in the Army's efforts to gain control of the Southern Plains Indians. This study argues that Fort Bascom should be recognized as Texas' northern-most frontier fort. Its men were closer to …
Date:
August 2012
Creator:
Blackshear, James Bailey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Layer Double Hydroxide Nanoclays on the Toxicity of Copper to Daphnia Magna
Nanoparticles may affect secondary pollutants such as copper. Layer Double Hydroxides (LDH) are synthetically produced nanoparticles that adsorb copper via cation exchange. Pretreatment of copper test solutions with LDH nanoparticles followed by filtration removal of LDH nanoparticles demonstrated the smallest LDH aggregates removed the most copper toxicity. This was due to increased surface area for cation exchange relative to larger particle aggregates. Co-exposure tests of copper chloride and clay were run to determine if smaller clay particles increased copper uptake by D. magna. Coexposure treatments had lower LC50 values compared to the filtration tests, likely as a result of additive toxicity. LDH nanoclays do reduce copper toxicity in Daphnia magna and may serve as a remediation tool.
Date:
May 2012
Creator:
Blake, Deanne Renee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Impact of Video Presentation Features on Instructional Achievement and Intrinsic Motivation in Secondary School Learners
This study analyzed instructional achievement and intrinsic motivation among 21st century secondary students utilizing a video lecture incorporating both student reaction cutaway images and immediate content interaction within the lecture. Respondents (n = 155) were from multiple classes and grade levels at a suburban Texas high school. Four groups of students viewed the identical lecture with differing video and content interaction treatments. Students responded to a pretest/posttest survey to assess academic achievement in addition to an intrinsic motivation instrument to assess student interest. Group one (the control group) viewed the 12 minute lecture without enhancement. A second group viewed the identical lecture with student reaction shots inserted in the video. Another group viewed the lecture with content question intervention inserted into the video. The final group saw the lecture with the student reaction shots and content question intervention combined in the video. A repeated measures multivariate analysis of variance (MANOVA) was used to compare results from a 14 item pretest/posttest. Combined, the groups showed no significance (p = .069) indicating no associations were identified by the experiment. Although no association was identified, this may be a reflection of the generic nature of the video lecture and the lack of association …
Date:
December 2012
Creator:
Bland, Ronald B.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Leonard Graphic (Leonard, Tex.), Vol. 122, No. 38, Ed. 1 Thursday, September 20, 2012
Weekly newspaper from Leonard, Texas that includes local, state, and national news along with advertising.
Date:
September 20, 2012
Creator:
Blevins, Betsy
Object Type:
Newspaper
System:
The Portal to Texas History
QR Codes: Best Practices and Tips to Help Libraries Market Valuable Electronic Resources
This presentation discusses Quick Response (QR) codes. QR codes leverage the power of smartphones to connect digital data to real-world surfaces. The author provides tips and best practices to help libraries market their valuable electronic resources using QR codes.
Date:
March 21, 2012
Creator:
Bloechle, Marie
Object Type:
Presentation
System:
The UNT Digital Library
Bodies and Other Firewood
The chakra system consists of seven energetic vortexes ascending up the spine that connect to every aspect of human existence. These vortexes become blocked and unblocked through the course of a life, these openings and closings have physiological and mental repercussions. Knowledge of these physical and mental manifestations, indicate where the chakra practitioner is in need, the practitioner can then manipulate their mind and body to create a desired outcome. These manipulations are based upon physical exercises and associative meditations for the purpose of expanding the human experience. As a poem can be thought of as the articulation of the human experience, and the chakra system can be thought of as a means to understand and enhance that experience, it is interesting and worthwhile leap to explore the how the chakras can develop and refresh the way we read and write poetry. This critical preface closely reads seven poems, one through each chakra, finding what the chakras unveil. Here, each chakra is considered for its dynamic creative capabilities and for its beneficial potentiality in the reading and writing process, finding each chakra provides tools: idea generators with the potential to free the poet from usual patterns of creativity while broadening …
Date:
December 2012
Creator:
Blomgren, Aubree Sky
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of the Technological, Instructional, and Motivational Factors Affecting Phr Certification Exam Outcomes
Although previous studies have considered the factors affecting other certification exam outcomes, they have not examined those that are related to performance on the Professional in Human Resources (PHR) exam. In response to that need, this study specifically investigates technology and training factors that affect self-efficacy and self-set goals, and through them, influence PHR certification exam results. The target population for the study consisted of recent examinees who had taken a formal PHR examination preparation class or used another form of exam preparation training. The survey results were analyzed using partial least squares modeling techniques, and mediation effects were then tested. The results demonstrated that PHR training self-efficacy affected PHR exam self-efficacy and self-set goals. These factors then had an impact on PHR exam scores. Also, the results of task-technology fit were indirectly related to PHR training self-efficacy through a multiple mediation model that included the instructional factor of time on task and the technology factor of perceived usefulness. Surprisingly, time spent on practice exam questions was found to be negatively related to PHR certification exam scores. Finally, instructional feedback indirectly affected outcomes through its positive relationship to self-set goals. The results of the research should help training professionals and …
Date:
May 2012
Creator:
Bonner, David M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Knowledge Discovery of Nanotube Mechanical Properties With an Informatics-Molecular Dynamics Approach
Carbon nanotubes (CNT) have unparalleled mechanical properties, spanning several orders of magnitude over both length and time scales. Computational and experimental results vary greatly, partly due to the multitude of variables. Coupling physics-based molecular dynamics (MD) with informatics methodologies is proposed to navigate the large problem space. The adaptive intermolecular reactive empirical bond order (AIREBO) is used to model short range, long range and torsional interactions. A powerful approach that has not been used to study CNT mechanical properties is the derivation of descriptors and quantitative structure property relationships (QSPRs). For the study of defected single-walled CNTs (SWCNT), two descriptors were identified as critical: the density of non-sp2 hybridized carbons and the density of methyl groups functionalizing the surface. It is believed that both of these descriptors can be experimentally measured, paving the way for closed-loop computational-experimental development. Informatics can facilitate discovery of hidden knowledge. Further evaluation of the critical descriptors selected for Poisson’s ratio lead to the discovery that Poisson’s ratio has strain-varying nonlinear elastic behavior. CNT effectiveness in composites is based both on intrinsic mechanical properties and interfacial load transfer. In double-walled CNTs, inter-wall bonds are surface defects that decrease the intrinsic properties but also improve load transfer. …
Date:
May 2012
Creator:
Borders, Tammie L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Development of Wireless Sensor Network System for Indoor Air Quality Monitoring
This thesis describes development of low cost indoor air quality (IAQ) monitoring system for research. It describes data collection of various parameters concentration present in indoor air and sends data back to host PC for further processing. Thesis gives detailed information about hardware and software implementation of IAQ monitoring system. Also discussed are building wireless ZigBee network, creating user friendly graphical user interface (GUI) and analysis of obtained results in comparison with professional benchmark system to check system reliability. Throughputs obtained are efficient enough to use system as a reliable IAQ monitor.
Date:
December 2012
Creator:
Borkar, Chirag
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
After the Planes
The dissertation consists of a critical preface and a novel. The preface analyzes what it terms “polyvocal” novels, or novels employing multiple points of view, as well as “layered storytelling,” or layers of textuality within novels, such as stories within stories. Specifically, the first part of the preface discusses polyvocality in twenty-first century American novels, while the second part explores layered storytelling in novels responding to World War II or the terrorist attacks of 9/11. The preface analyzes the advantages and difficulties connected to these techniques, as well as their aptitude for reflecting the fractured, disconnected, and subjective nature of the narratives we construct to interpret traumatic experiences. It also acknowledges the necessity—despite its inherent limitations—of using language to engage with this fragmentation and cope with its challenges. The preface uses numerous novels as examples and case studies, and it also explores these concepts and techniques in relation to the process of writing the novel After the Planes. After the Planes depicts multiple generations of a family who utilize storytelling as a means to work through grief, hurt, misunderstanding, and loss—whether from interpersonal conflicts or from war. Against her father’s wishes, a young woman moves in with her nearly-unknown grandfather, …
Date:
May 2012
Creator:
Boswell, Timothy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library