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803 Matching Results
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Systems Interoperability and Collaborative Development for Web Archiving - Filling Gaps in the IMLS National Digital Platform
This presentation provides an overview of the beginning stages of the IMLS funded two-year web archiving research project with Internet Archive, Stanford University Libraries, University of North Texas, and Rutgers University.
Date:
May 25, 2016
Creator:
Phillips, Mark Edward & Mumma, Courtney
Object Type:
Presentation
System:
The UNT Digital Library
GIS Trends and Open Access
Presentation for the 2016 Open Access Symposium discussing Geographic Information Systems (GIS) software and data in relation to open access initiatives.
Date:
May 20, 2016
Creator:
Burns, Douglas & Rodriguez, Allyson
Object Type:
Presentation
System:
The UNT Digital Library
Succession Planning Through Mentoring in the Library Survey [Dataset]
This dataset shows the results from a succession planning and mentoring survey conducted by UNT Libraries.
Date:
May 8, 2016
Creator:
Leuzinger, Julie & Rowe, Jennifer
Object Type:
Dataset
System:
The UNT Digital Library
LEAP II Institute: Digital Curation and Lifecycle Management Workshop
This presentation contains a pre- and post-workshop surveys, with an overview of digital libraries, digital lifecycle management, and digital preservation.
Date:
May 17, 2016
Creator:
Alemneh, Daniel Gelaw
Object Type:
Presentation
System:
The UNT Digital Library
Beyond Text: Best Practices for Cataloging Music-ETDs and Associated Audio-Visual Materials
This poster discusses issues and considerations in describing and integrating ETDs and associated content.
Date:
May 25, 2016
Creator:
Hartsock, Ralph & Alemneh, Daniel Gelaw
Object Type:
Poster
System:
The UNT Digital Library
The Training Games Program: A Method for Digitization Skills Refreshment and Certification
This presentation provides an overview of a pilot training program for student assistants in the University of North Texas Libraries Digital Projects Lab.
Date:
May 25, 2016
Creator:
McIntosh, Marcia & Willis, Shannon
Object Type:
Presentation
System:
The UNT Digital Library
Rethinking "But This is the Way We've Always Done It!"
This presentation provides an overview of a reassessment of digital imaging workflow for University of North Texas Libraries Digital Projects Lab.
Date:
May 26, 2016
Creator:
Willis, Shannon
Object Type:
Presentation
System:
The UNT Digital Library
Rescuing Texas History at The Portal to Texas History
This presentation provides an overview of the Rescuing Texas History Program, in which University of North Texas Libraries partners with external organizations to preserve at-risk materials.
Date:
May 26, 2016
Creator:
McIntosh, Marcia & Mangum, Jake
Object Type:
Presentation
System:
The UNT Digital Library
Envisioning a Geospatial Data Portal and Curation Network
This presentation is part of the panel "Envisioning a Geospatial Data Portal and Curation Network" from the 2016 Texas Conference on Digital Libraries and contains a brief overview on the GIS data and services provided by the University of North Texas.
Date:
May 25, 2016
Creator:
Burns, Douglas
Object Type:
Presentation
System:
The UNT Digital Library
Forensic Analysis of Ink on Documents Using Direct Analyte-Probed Nanoextraction Coupled Techniques
Analzying questioned documents in a nondestructive nature has been an issue for the forensic science community. Using nondestructive techniques such as video spectral comparator does not give reliable information due to the variations in gray or color levels that are distinguished differently by analysts. Destructive techniques such as chromatography give dependable, qualitative and quantitative, information but involves altering the evidentiary value of these questioned documents. The paradox of document examination becomes a problem when document evidence is involved, especially when trying to preserve its evidentiary value and critical data is needed. Thus, a nondestructive technique has been developed to solve the loopholes in document examinations. Direct analyte-probed nanoextraction (DAPNe) is a nanomanipulation technique that extracts ink directly off the document for further examination. A watermark is left, at most, post-extraction. DAPNe utilizes a tip emitter, pre-filled with a solvent, which is controlled in x-, y-, and z-coordinates via joystick controller and aspirates/extracts using a pressure injector. The versatility of this technique lies within the solvent chemistry and its capability to be coupled to various types of instrumentation. The extraction solvent can be altered to target specific components in the ink. For example, a chelator may be added to target metal …
Date:
May 2016
Creator:
Huynh, Vivian
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Simulink® Based Design and Implementation of a Solar Power Based Mobile Charger
Electrical energy is used at approximately the rate of 15 Terawatts world-wide. Generating this much energy has become a primary concern for all nations. There are many ways of generating energy among which the most commonly used are non-renewable and will extinct much sooner than expected. Very active research is going on both to increase the use of renewable energy sources and to use the available energy with more efficiency. Among these sources, solar energy is being considered as the most abundant and has received high attention. The mobile phone has become one of the basic needs of modern life, with almost every human being having one.Individually a mobile phone consumes little power but collectively this becomes very large. This consideration motivated the research undertaken in this masters thesis. The objective of this thesis is to design a model for solar power based charging circuits for mobile phone using Simulink(R). This thesis explains a design procedure of solar power based mobile charger circuit using Simulink(R) which includes the models for the photo-voltaic array, maximum power point tracker, pulse width modulator, DC-DC converter and a battery. The first part of the thesis concentrates on electron level behavior of a solar cell, …
Date:
May 2016
Creator:
Mukka, Manoj Kumar
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Impact of Teacher and Student Ethnicity on Student Assessments
The purpose of the study was to answer the questions: Do students show greater academic success in English language arts/reading as measured by the Texas Assessment of Knowledge and Skills (TAKS) exam scores in secondary education when their teachers are the same ethinicity? Do students show greater academic success in math as measured by the TAKS exam scores in secondary education when their teachers are the same ethnicity? Minority students' success on the TAKS test was compared to the assessment scores of White students from the 2010-2011, 2011-2012, and 2012-13 school year in thre suburban school districts. This topic has been a subject of discussion since the late 10970s when Cardenas and Cardenas (1977) studied the achievement among minority students and their White peers. The conversation continued through authors such as Takei and Shouse (2008), Hays (2011), Ladson-Billings (2006), Dee (2003, 2005), and Brown (2006). To answer these research questions, a hierarchical multiple regression analysis was conducted on the data collected. Although the study verified the achievement gap between minority students and White students, the study indicated no consistent pattern corroborating that minority students were more successful when taught by teachers of the same ethnicity. In many cases, students learned …
Date:
May 2016
Creator:
Barnes, Barbara (Principal)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Programmatic Geographical Depictions in Large-Scale Jazz Ensemble Works: Major Works by Gil Evans and Chuck Owen and a New Work by Aaron Hedenstrom
This dissertation explores the creative process in large-scale jazz ensemble works that are programmatic in depicting geographical locations. This is achieved through analyses of Gil Evans's Sketches of Spain, Chuck Owen's River Runs: A Concerto for Jazz Guitar, Saxophone, & Orchestra, and Aaron Hedenstrom's Sketches of Minnesota. Each work is examined using five analytical categories: orchestration, large-scale form, harmonic/melodic development, programmatic framework, and use of featured soloists. The analyses draw from musical scores, interviews, biographies, recordings, and articles to reveal more about each composer's artistic intentions. This study contributes to the broader knowledge of large-ensemble jazz works and programmatic jazz works. This research meets the need for more critical analyses of important jazz ensemble works relevant to composers, arrangers, and scholars.
Date:
May 2016
Creator:
Hedenstrom, Aaron
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Innovative Cold-Formed Steel Shear Walls with Corrugated Steel Sheathing
This thesis presents two major sections with the objective of introducing a new cold-formed steel (CFS) shear wall system with corrugated steel sheathings. The work shown herein includes the development of an optimal shear wall system as well as an optimal slit configuration for the CFS corrugated sheathings which result in a CFS shear wall with high ductility, high strength, high stiffness and overall high performance. The conclusion is based on the results of 36 full-scale shear wall tests performed in the structural laboratory of the University of North Texas. A variety of shear walls were the subject of this research to make further discussions and conclusions based on different sheathing materials, slit configurations, wall configurations, sheathing connection methods, wall dimensions, shear wall member thicknesses, and etc. The walls were subject to cyclic (CUREE protocol) lateral loading to study their deformations and structural performances. The optimal sit configuration for CFS shear walls with corrugated steel sheathings was found to be 12×2 in. vertical slits in 6 rows. The failure mode observed in this shear wall system was the connection failure between the sheathing and the framing members. Also, most of the shear walls tested displayed local buckling of the chord …
Date:
May 2016
Creator:
Mahdavian, Mahsa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Impact of Grit on Performance After Mastery- or Performance-Oriented Feedback
Grit and achievement motivation have been predictors of behavior in academia and military settings (Duckworth, Matthews, Peterson, & Kelly, 2007), but to date, research on their effects on sport performance has been limited. Given grit's predictive role in other performance domains, grit may be influential in athletes' long-term goal attainment, interacting with their achievement motives and leading to better performances. Athletes' trait levels of grit may influence how they understand and respond to messages received within motivational climates from key personnel such as from coaches and teammates. We examined potential moderating effects of grit on the relationship between motivational feedback and high school soccer players (N = 71, Mage = 15.81) performance on a soccer task, their desire to persist in the task, and their choices of task difficulty. We used hierarchical multiple regression to test the main effects of feedback and grit and to determine if grit moderated the effects of feedback on performance. Grit was a significant moderator of the feedback-shooting performance relationship, accounting for 3.9% of variance. Simple slopes analysis revealed a significant effect for low (B = 13.32, SEb = 4.44, p = .004, t = 2.99), but not high, (B = 2.11, SEb = 4.31, …
Date:
May 2016
Creator:
Auerbach, Alex
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Mock Juror Effects of Blame and Conviction in Rape Cases: Do Attitudes, Beliefs, and Contact with Homosexuals Matter?
The current case involves a female rape victim. Research has shown the level of victim blaming can be elevated if the victim is a lesbian woman compared to a heterosexual woman. Mock jurors’ responses to personality trait questionnaires (e.g., Belief in a Just World, Attitudes Toward Women, Attitudes Toward Lesbians) and amount of contact they have with homosexual people were employed as predictors of how they would decide victim blaming and perpetrator guilt. Personality trait findings were not good predictors; however, greater contact with homosexuals did decrease negative attitudes toward lesbian victims. Limitations and implications for future research are addressed.
Date:
May 2016
Creator:
Hurst-McCaleb, Dawn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Relationship of Career and Technical Education Information Technology Teachers' Technology Self-Proficiency to Levels of Technology Integration, Prior Work Experience, Years of Teaching Experience, and Stage of Adoption of Technology
The focus of this study is to determine the relationship between a Career and Technical Education (CTE) Information Technology (IT) teacher's self-assessed level of technology proficiency to the level of technology integration into the classroom, the prior work experience in the information technology field, the years of teaching experience, and the stage of adoption of technology. Participants were CTE IT teachers who were members of an IT teacher listserv that was established by the UNT Grant for Educational Excellence from the Texas Education Agency/CTE and teaching in Grades 9-12 in the state of Texas during the 2015-2016 school year. The study utilized a quantitative survey methodology to gain a perspective on the correlation of the variables. Three validated self-report instruments were administered via an online survey. The three instruments utilized were the Technology Proficiency Self-Assessment for 21st Century Learning, Concerns-Based Adoption Model-Levels of Use (CBAM-LoU), and the Stages of Adoption of Technology.
Date:
May 2016
Creator:
Ritter, Rhonda LeDoux
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effectiveness of a Professional Learning Community on Student Achievement in Elementary Reading and Mathematics in a Large Urban School District
The study was to determine the impact of a Professional Learning Community on student achievement as measured by the state's criterion referenced reading and mathematics achievement tests. Data for this study were extracted from the school district's student database. Two cohorts of 90 students each were randomly selected from a population of approximately 600 students in 3 schools that participated in a Professional Learning Community (treatment) and 3 schools that did not (control). Professional Learning Communities known as PLCs, can serve as a major theoretical framework to promote the improvement of classroom teachers' instructional practice, teacher effectiveness and student achievement. Reading and mathemtics mean scale scores were extracted at three time points (year 1, year 2, and year 3) across three grades (grade 3, grade 4 and grade 5). Test for equality of variance found that no statistically significant difference existed between the mean scale scores of the two cohorts at the beginning of the study. The findings revealed that both cohorts trend toward increased academic achievement from year to year individually; however, when compared to each other, no statistically significant difference existed. Further research is indicated to examine each PLC for implementation, support and leadership as they relate to …
Date:
May 2016
Creator:
Landry, Jacqueline Hayles
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
"Goodness and Mercy"
The stories in this collection represent an increasingly transcultural world by exploring the intersection of cultures and identities in border spaces, particularly the Mexican-American border. Characters, regardless of ethnicity, experience the effects of migration and deportation in schools, hometowns, relationships, and elsewhere. The collection as a whole focuses on the issues and themes found in Mexican-American literature, such as loss, separation, and the search for identity.
Date:
May 2016
Creator:
Craggett, Courtney, 1986-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Continuous Combinatorics of a Lattice Graph in the Cantor Space
We present a novel theorem of Borel Combinatorics that sheds light on the types of continuous functions that can be defined on the Cantor space. We specifically consider the part X=F(2ᴳ) from the Cantor space, where the group G is the additive group of integer pairs ℤ². That is, X is the set of aperiodic {0,1} labelings of the two-dimensional infinite lattice graph. We give X the Bernoulli shift action, and this action induces a graph on X in which each connected component is again a two-dimensional lattice graph. It is folklore that no continuous (indeed, Borel) function provides a two-coloring of the graph on X, despite the fact that any finite subgraph of X is bipartite. Our main result offers a much more complete analysis of continuous functions on this space. We construct a countable collection of finite graphs, each consisting of twelve "tiles", such that for any property P (such as "two-coloring") that is locally recognizable in the proper sense, a continuous function with property P exists on X if and only if a function with a corresponding property P' exists on one of the graphs in the collection. We present the theorem, and give several applications.
Date:
May 2016
Creator:
Krohne, Edward
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Do Re Mi? Yes! Using Music and Visual Arts to Promote Thai Children's English Vocabulary Development
This research examines the efficacy, if any, of the Music and Visual Arts (MVA) program in improving the English vocabulary development of first grade Thai students. The researcher developed the Vocabulary Recognition Assessment (VRA) as a measure of English vocabulary development. It employs the accuracy and rapidity method of word recognition as a measurement of English language development in Thai children. Forty first grade Thai students in a Bangkok elementary school participated in the study. Participants were divided equally between an experimental group and a control group. During a nine-week period, students in the experimental group were instructed with the MVA strategy, while students in the control group were taught with the Visual Arts (VA) strategy. Paired sample t-test, ANOVA, and ANCOVA were used to analyze data from the VRA, to compare the pre-test and the post-test in terms of accuracy scores and rapidity scores of the control group and the experimental group. Data revealed that students instructed with the MVA strategy improved their English vocabulary development in terms of accuracy of word recognition significantly more than students taught English using the VA strategy. No significant difference was found between the MVA strategy and the VA strategy in terms of …
Date:
May 2016
Creator:
Mathayomchan, Somsuda
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Interfacial Electrochemistry of Cu/Al Alloys for IC Packaging and Chemical Bonding Characterization of Boron Doped Hydrogenated Amorphous Silicon Films for Infrared Cameras
We focused on a non-cooling room temperature microbolometer infrared imaging array device which includes a sensing layer of p-type a-Si:H component layers doped with boron. Boron incorporation and bonding configuration were investigated for a-Si:H films grown by plasma enhanced chemical deposition (PECVD) at varying substrate temperatures, hydrogen dilution of the silane precursor, and dopant to silane ratio using multiple internal reflection infrared spectroscopy (MIR-IR). This study was then confirmed from collaborators via Raman spectroscopy. MIR-IR analyses reveal an interesting counter-balance relationship between boron-doping and hydrogen-dilution growth parameters in PECVD-grown a-Si:H. Specifically, an increase in the hydrogen dilution ratio (H2/SiH4) or substrate temperature was found to increase organization of the silicon lattice in the amorphous films. It resulted in the decrease of the most stable SiH bonding configuration and thus decrease the organization of the film. The new chemical bonding information of a-Si:H thin film was correlated with the various boron doping mechanisms proposed by theoretical calculations. The study revealed the corrosion morphology progression on aluminum alloy (Al, 0.5% Cu) under acidic chloride solution. This is due to defects and a higher copper content at the grain boundary. Direct galvanic current measurement, linear sweep voltammetry (LSV), and Tafel plots are used …
Date:
May 2016
Creator:
Ross, Nick
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Facilitating Positive Relationships between Patients and Foreign Born Providers in South Central Pennsylvania
Foreign-born providers make up over a quarter of the physician workforce nationally. Patients in south central Pennsylvania are primarily white with limited interaction with foreigners which can produce barriers to communication and trust. This study proposes practical steps for building positive relationships between patients and their foreign-born providers. Ethnographic methods were used to interview and survey patients and providers about the relationships between foreign-born providers and patients, primarily in the Summit Health system. The results of the study provide a framework of how trust is built between patients and providers in general, suggest additional actions for foreign-born providers, and propose ways patients can do their part to achieve a positive relationship with their provider. While much of the literature on cultural competence is in the context of patients who are from minority ethnicities, this study adds to the body of research by also considering the providers as part of minority groups.
Date:
May 2016
Creator:
Long, Janel Elaine Lehman
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Social Anxiety and Non-Medical Prescription Stimulant Use Among College Students
Current evidence suggests that non-medical prescription stimulant (NMPS) use is on the rise, particularly among college students. Identifying individuals at risk for regular and problematic use is a critical step towards the development of effective intervention efforts. A growing body of work has noted that individuals with elevated levels of social anxiety (SA) or social anxiety disorder are at an enhanced risk for developing substance use problems, including NMPS use disorder. Despite the relevance of SA and NMPS use among college students, no studies have attempted to examine subclinical SA or the relation between SA and NMPS use among college students specifically. Thus, the present study sought to extend this area by testing the relation of SA symptoms and NMPS use frequency among college students. A large online study of college students was conducted (N=1604) to identify 252 NMPS users (18-25 years; 68.3% female). A hierarchical linear regression was used to test the moderation of positive prescription stimulant expectancies on SA symptoms in predicting past year NMPS use frequency. A subsample of 15 participants was also brought into the lab to assess subjective (State Anxiety) and physiological (salivary cortisol) responding to a social stressor task. Overall, the current study did …
Date:
May 2016
Creator:
Cloutier, Renee M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library