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Divisions, Areas, and Ensembles - Jazz - One O'Clock Lab Band - Australia Trip
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An Empirical Study of How Novice Programmers Use the Web
Students often use the web as a source of help for problems that they encounter on programming assignments.In this work, we seek to understand how students use the web to search for help on their assignments.We used a mixed methods approach with 344 students who complete a survey and 41 students who participate in a focus group meetings and helped in recording data about their search habits.The survey reveals data about student reported search habits while the focus group uses a web browser plug-in to record actual search patterns.We examine the results collectively and as broken down by class year.Survey results show that at least 2/3 of the students from each class year rely on search engines to locate resources for help with their programming bugs in at least half of their assignments;search habits vary by class year;and the value of different types of resources such as tutorials and forums varies by class year.Focus group results exposes the high frequency web sites used by the students in solving their programming assignments.
Date:
May 2016
Creator:
Tula, Naveen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Enhancement of Light Emission from Metal Nanoparticles Embedded Graphene Oxide
A fully oxidized state of graphene behaves as a pure insulating while a pristine graphene behaves as a pure conducting. The in-between oxide state in graphene which is the controlled state of oxide behaves as a semiconducting. This is the key condition for tuning optical band gap for the better light emitting property. The controlling method of oxide in graphene structure is known as reduction which is the mixed state of sp2 and sp3 hybrid state in graphene structure. sp2 hybridized domains correspond to pure carbon-carbon bond i.e. pristine graphene while sp3 hybridized domains correspond to the oxide bond with carbon i.e. defect in graphene structure. This is the uniqueness of the graphene-base material. Graphene is a gapless material i.e. having no bandgap energy and this property prevents it from switching device applications and also from the optoelectronic devices applications. The main challenge for this material is to tune as a semiconducting which can open the optical characteristics and emit light of desired color. There may be several possibilities for the modification of graphene-base material that can tune a band gap. One way is to find semiconducting property by doping the defects into pristine graphene structure. Other way is oxides …
Date:
May 2016
Creator:
Karna, Sanjay K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Evaluating the Effectiveness of a Competency-Based Training Package to Teach Behavior Management Skills to Direct Support Staff
Cooper, Heron and Heward define maintenance as the extent to which a learner continues to perform a target behavior after the intervention has been terminated. Testing for maintenance allows the trainer to see if gains were sustained following the termination of a treatment program. In addition, once it is shown that a learner's skills have remained in the repertoire, assessment of generalization is possible. Previous literature in behavior skills training have assessed maintenance in a variety of settings for a variety of skills. Following maintenance assessments, booster sessions are commonly used to re-train skills that did not maintain at criterion levels. The current project assessed the maintenance of caregivers' skills following a training package used to teach three behavior management techniques (use reinforcement, pivot, protect-redirect) at a large, residential care facility. Procedures were developed to assess caregivers' maintenance of the three behavior management techniques using a pre-test- post-test design. If needed, skills were re-established using 5-20 minute booster sessions. The results showed that time between post-test and maintenance did not seem to have a strong effect on maintenance scores. In general, post-test scores were somewhat indicative of maintenance scores, and patterns were most apparent across tools.
Date:
May 2016
Creator:
Harris, Kellen-Jade S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Evaluating the Pulse Sensor as a Low-Cost and Portable Measurement of Blood Pulse Waveform
This study was aimed at determining whether the digital volume pulse waveform using the Pulse Sensor can be used to extract features related to arterial compliance. The Pulse Sensor, a low-cost photoplethysmograph, measures green light reflection in the finger and generates output, which is indicative of blood flow and can be read by the low-cost Arduino UNO™. The Pulse Sensor code was modified to increase the sampling frequency and to capture the data in a file, which is subsequently used for waveform analysis using programs written in the R system. Waveforms were obtained using the Pulse Sensor during two 30-s periods of seated rest, in each of 44 participants, who were between the ages of 20 and 80 years. For each cardiac cycle, the first four derivatives of the waveform were calculated and low-pass filtered by convolution before every differentiation step. The program was written to extract 19 features from the pulse waveform and its derivatives. These features were selected from those that have been reported to relate to the physiopathology of hemodynamics. Results indicate that subtle features of the pulse waveform can be calculated from the fourth derivative. Feature misidentification occurred in cases of saturation or low voltage and …
Date:
May 2016
Creator:
Smithers, Breana Gray
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Evolution of the Improvisational Vocabulary of Marc Johnson
This study examines the evolution of the improvisational vocabulary utilized by bassist Marc Johnson over the course of his career. Through interviews and musical analysis the study contextualizes Johnson’s musical influences, considers how they shaped his development, and examines his role in the legacy of the stylistic lineage established by Scott LaFaro with the Bill Evans Trio. A survey of literature concerning Johnson, Scott LaFaro and Eddie Gomez is included, as well as a discussion of the impact of apprenticeship on Johnson’s career. The study illuminates aspects of Johnson’s current vocabulary and how he has synthesized influences to create a distinctive vocabulary, not derivative of Scott LaFaro or Eddie Gomez, but incorporating elements of their style in the composition of his own voice.
Date:
May 2016
Creator:
Helsley, Jack
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Examination of the Alignment between the SHRM Competency Model and Undergraduate Syllabi of Human Resources and Management Degree Programs in Texas
The purpose of this study was to provide a snapshot of current Human Resources (HR) and Management curricula of four-year public universities in Texas in 2016 and evaluate their alignment with the competencies of the SHRM Competency Model®. This study used a mixed methods approach and analyzed course syllabi for a purposeful sample of 21 public universities in Texas. The course objectives referenced explicitly and/or implicitly all nine competencies. Three courses encompassed all nine competencies, and 84% of all programs demonstrated alignment with the competencies. “Business Acumen”, “Critical Evaluation”, “Communication” and “Relationship Management” were the most frequently referenced competencies in course syllabi. “Consultation” appeared the least frequently. This comprehensive analysis revealed that there is alignment between course curricula of public universities in Texas and competency expectations of graduates wishing to pursue a career in Human Resources. Recommendations applied to four areas including scholarship, university administration, professional associations, and practitioners.
Date:
May 2016
Creator:
Gavrilova Aguilar, Mariya
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Examples of Policies and Emerging Practices for Supporting Transgender Students
This document covers the U.S. Department of Education efforts to protect transgender students.
Date:
May 2016
Creator:
United States. Department of Education. Office of Elementary and Secondary Education. Office of Safe and Healthy Students.
Object Type:
Text
System:
The UNT Digital Library
Expansion of Musical Styles, Function of Texture, and Performing Techniques in Brian Lock's Sonic Archaeologies No. 1: A Performance Guide
British composer Brian Lock merges the composition styles of Alexander Goehr, Henryk Górecki and Witold Lutoslawski in his innovative works for instrumental sounds and electronics. His most recent work for flute, Sonic Archaeologies No.1, was premiered at the University of North Texas by Mary Karen Clardy, flute; Brian Lock, piano/electric keyboard; and Daniel Pardo, laptop/live mixing. The purpose of this dissertation is to provide flutists with artistic and technical guidance in preparing this work for flute, prerecorded orchestra, interactive electronics and improvisatory accompaniment. Sonic Archaeologies No. 1, a piece in five movements (Black Rain, Psychomania, Kodo, Susperia, and Deep in the Machine), incorporates contemporary techniques to create sounds other than the Western concert flute, with the use of live reinforcement devices such as microphones and time-based audio effects within a D.A.W. (Digital Audio Workstation.) Reggae, Hip-Hop and cinematic styles are juxtaposed within the work, fusing current genres with traditional rhythmic forms like the ones found in a bourrée. As the solo instrument, flute provides more textural than melodic elements, and the performer is required to interact with an unpredictable sonic soundscape as a result of the improvisatory element of the keyboards and computer. The notation of Sonic Archaeologies No.1 invites …
Date:
May 2016
Creator:
Pardo, Daniel (Flutist)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Exploration of the Word2vec Algorithm: Creating a Vector Representation of a Language Vocabulary that Encodes Meaning and Usage Patterns in the Vector Space Structure
This thesis is an exloration and exposition of a highly efficient shallow neural network algorithm called word2vec, which was developed by T. Mikolov et al. in order to create vector representations of a language vocabulary such that information about the meaning and usage of the vocabulary words is encoded in the vector space structure. Chapter 1 introduces natural language processing, vector representations of language vocabularies, and the word2vec algorithm. Chapter 2 reviews the basic mathematical theory of deterministic convex optimization. Chapter 3 provides background on some concepts from computer science that are used in the word2vec algorithm: Huffman trees, neural networks, and binary cross-entropy. Chapter 4 provides a detailed discussion of the word2vec algorithm itself and includes a discussion of continuous bag of words, skip-gram, hierarchical softmax, and negative sampling. Finally, Chapter 5 explores some applications of vector representations: word categorization, analogy completion, and language translation assistance.
Date:
May 2016
Creator:
Le, Thu Anh
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Exploring Analog and Digital Design Using the Open-Source Electric VLSI Design System
The design of VLSI electronic circuits can be achieved at many different abstraction levels starting from system behavior to the most detailed, physical layout level. As the number of transistors in VLSI circuits is increasing, the complexity of the design is also increasing, and it is now beyond human ability to manage. Hence CAD (Computer Aided design) or EDA (Electronic Design Automation) tools are involved in the design. EDA or CAD tools automate the design, verification and testing of these VLSI circuits. In today’s market, there are many EDA tools available. However, they are very expensive and require high-performance platforms. One of the key challenges today is to select appropriate CAD or EDA tools which are open-source for academic purposes. This thesis provides a detailed examination of an open-source EDA tool called Electric VLSI Design system. An excellent and efficient CAD tool useful for students and teachers to implement ideas by modifying the source code, Electric fulfills these requirements. This thesis' primary objective is to explain the Electric software features and architecture and to provide various digital and analog designs that are implemented by this software for educational purposes. Since the choice of an EDA tool is based on the …
Date:
May 2016
Creator:
Aluru, Gunasekhar
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Exploring Inorganic Catalysis with Electronic Structure Simulations
Organometallic catalysis has attracted significant interest from both industry and academia due to its wide applications in organic synthetic transformations. Example of such transformations include the reaction of a zinc carbenoid with olefins to form cyclopropanes. The first project is a computational study using both density functional and correlated wavefunction methods of the reaction between ethylene and model zinc carbenoid, nitrenoid and oxenoid complexes (L-Zn-E-X, E = CH2, NH or O, L = X = I or Cl). It was shown that cyclopropanation of ethylene with IZnCH2I and aziridination of ethylene with IZnNHI proceed via a single-step mechanism with an asynchronous transition state. The reaction barrier for the aziridination with IZnNHI is lower than that of cyclopropanation. Changing the leaving group of IZnNHI from I to Cl, changes the mechanism of the aziridination reaction to a two-step pathway. The calculation results from the epoxidation with IZnOI and ClZnOCl oxenoids suggest a two-step mechanism for both oxenoids. Another important example of organometallic catalysis is the formation of alkyl arenes from arenes and olefins using transition metal catalysis (olefin hydroarylation). We studied with DFT methods the mechanism of a novel Rh catalyst (FlDAB)Rh(TFA)(η2–C2H4) [FlDAB = N,N’ -bis(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; TFA = trifluoroacetate] that converts …
Date:
May 2016
Creator:
Khani, Sarah Karbalaei
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
Factors influencing parental attitudes toward digital game-based learning.
The purpose of this non-positivistic mixed-methods study is to examine parental attitudes towards the use of computer and video games in their child’s classroom and to investigate how the sociocultural contexts in which parents live affect those attitudes. The research was conducted using a mixed-methods triangulation design, including both quantitative and qualitative techniques. First, the study tried to identify which groups of parents were better positioned to accept and support digital game-based learning and which groups were less likely to have a positive attitude toward integrating digital games into the classroom. This study tried to determine if socioeconomic status, age, education level, and/or cultural background could serve as a predictor of parental attitudes toward digital game-based learning. Second, the study tried to recognize how social and cultural contexts in which parents live affect their attitudes toward digital games in the classroom. Many researchers agree that parents play an important role in students’ and eventually, educators’ attitudes toward gaming. It has been argued that if parents accept a certain non-traditional (digital) learning tool, then their children would most likely have a similar attitude toward it. Parents might be the support system that educators need in order to ensure that students are …
Date:
May 2016
Creator:
Piller, Yulia
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Fatigue Behavior of A356 Aluminum Alloy
Metal fatigue is a recurring problem for metallurgists and materials engineers, especially in structural applications. It has been responsible for many disastrous accidents and tragedies in history. Understanding the micro-mechanisms during cyclic deformation and combating fatigue failure has remained a grand challenge. Environmental effects, like temperature or a corrosive medium, further worsen and complicate the problem. Ultimate design against fatigue must come from a materials perspective with a fundamental understanding of the interaction of microstructural features with dislocations, under the influence of stress, temperature, and other factors. This research endeavors to contribute to the current understanding of the fatigue failure mechanisms. Cast aluminum alloys are susceptible to fatigue failure due to the presence of defects in the microstructure like casting porosities, non-metallic inclusions, non-uniform distribution of secondary phases, etc. Friction stir processing (FSP), an emerging solid state processing technique, is an effective tool to refine and homogenize the cast microstructure of an alloy. In this work, the effect of FSP on the microstructure of an A356 cast aluminum alloy, and the resulting effect on its tensile and fatigue behavior have been studied. The main focus is on crack initiation and propagation mechanisms, and how stage I and stage II cracks …
Date:
May 2016
Creator:
Nelaturu, Phalgun
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
FCC Record, Volume 31, No. 6, Pages 4309 to 5166, May 2 - May 13, 2016
Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date:
May 2016
Creator:
United States. Federal Communications Commission.
Object Type:
Book
System:
The UNT Digital Library
FCC Record, Volume 31, No. 8, Pages 6157 to 6674, Supplement (April - May 2016)
Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date:
May 2016
Creator:
United States. Federal Communications Commission.
Object Type:
Book
System:
The UNT Digital Library
Feasibility of a New Technique to Determine Dynamic Tensile Behavior of Brittle Materials
Dynamic tensile characterization of geo-materials is critical to the modeling and design of protective structures that are often made of concrete. One of the most commonly used techniques currently associated with this type of testing is performed with a Kolsky bar and is known as the spall technique. The validity of the data from the spall technique is highly debated because the necessary boundary conditions for the experiment are not satisfied. By using a technique called pulse shaping, a new “controlled” spall technique was developed to satisfy all boundary conditions so that the analyzed data may be useful in modeling and design. The results from this project were promising and show the potential to revolutionize the way Kolsky bar testing is performed.
Date:
May 2016
Creator:
Dean, Andrew W.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Field Validation of Zero Energy Lab Water-to-Water Ground Coupled Heat Pump Model
Heat pumps are a vital part of each building for their role in keeping the space conditioned for the occupant. This study focuses on developing a model for the ground-source heat pump at the Zero Energy lab at the University of North Texas, and finding the minimum data required for generating the model. The literature includes many models with different approaches to determine the performance of the heat pump. Each method has its pros and cons. In this research the equation-fit method was used to generate a model based on the data collected from the field. Two experiments were conducted for the cooling mode: the first one at the beginning of the season and the second one at the peak of the season to cover all the operation conditions. The same procedure was followed for the heating mode. The models generated based on the collected data were validated against the experiment data. The error of the models was within ±10%. The study showed that the error could be reduced by 20% to 42% when using the field data to generate the model instead of the manufacturer’s catalog data. Also it was found that the minimum period to generate the cooling …
Date:
May 2016
Creator:
Abdulameer, Saif
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Fiscal Notes: May 2016
Newsletter issued by the Texas Office of the Comptroller discussing news, events, statistics, and other relevant information related to business and the economy.
Date:
May 2016
Creator:
Texas. Comptroller's Office.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
For the Ruined Body
This dissertation contains two parts: Part I, "Self-Elegy as Self-Creation Myth," which discusses the self-elegy, a subgenre of the contemporary American elegy; and Part II, For the Ruined Body, a collection of poems. Traditionally elegies are responses to death, but modern and contemporary self-elegies question the kinds of death, responding to metaphorical not literal deaths. One category of elegy is the self-elegy, which turns inward, focusing on loss rather than death, mourning aspects of the self that are left behind, forgotten, or aspects that never existed. Both prospective and retrospective, self-elegies allow the self to be reinvented in the face of loss; they mourn past versions of selves as transient representations of moments in time. Self-elegies pursue the knowledge that the selves we create are fleeting and flawed, like our bodies. However by acknowledging painful self-truths, speakers in self-elegies exert agency; they participate in their own creation myths, actively interpreting and incorporating experiences into their identity by performing dreamlike scenarios and sustaining an intimate, but self-critical, voice in order to: one, imagine an alternate self to create distance and investigate the evolution of self-identity, employing hindsight and self-criticism to offer advice; two, reinterpret the past and its role in creating …
Date:
May 2016
Creator:
Dorris, Kara Delene, 1980-
Object Type:
Thesis or Dissertation
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
Forgotten Legacies: The U.S. Glider Pilot Training Program and Lamesa Field, Texas, During World War II
Rapidly initiated at the national, regional, and local levels, the American glider pilot training program came about due to a perceived need after successful German operations at the outset of World War II. Although the national program successfully produced the required number of pilots to facilitate combat operations, numerous changes and improvisation came to characterize the program. Like other American military initiatives in the twentieth century, the War Department applied massive amounts of effort, dollars, and time to a program that proved to be short-lived in duration because it was quickly discarded when new technologies appeared. At the local level, the real loser was Lamesa, Texas. Bearing the brunt of these changes by military decision makers, the citizens of Lamesa saw their hard-fought efforts to secure an airfield fall quickly by the wayside in the wake of changing national defense priorities. As generations continue to pass and memories gradually fade, it is important to document and understand the relationship between this military platform that saw limited action and a small Texas town that had a similarly short period of significance to train the pilots who flew the aircraft.
Date:
May 2016
Creator:
Garner, Christian A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[Friels and Reeves with Certificate]
Photograph of David Friels and Cadet Brandon Reeves at a TXSSAR-sponsored awards ceremony for JROTC. The two men are shaking hands and holding a certificate and medal. In the background, several other trophies and awards can be seen.
Date:
May 2016
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Funeral Program for Louis Bates Whitehead, Jr., 2016]
Funeral program for Staff Sergeant Louis Bates Whitehead Junior, born January 24,1935 and died May 22, 2016. The funeral was officiated by Pastor Kevin Nelson. Funeral arrangements were made through Mission Park Funeral Chapels South and he was buried in Fort Sam Houston National Cemetery in San Antonio, Texas.
Date:
2016-05~
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History