UNT Theses and Dissertations - 4,300 Matching Results

Search Results

Results: 1 - 24 next
open access

9-Lipoxygenase Oxylipin Pathway in Plant Response to Biotic Stress

Description: The activity of plant 9-lipoxygenases (LOXs) influences the outcome of Arabidopsis thaliana interaction with pathogen and insects. Evidence provided here indicates that in Arabidopsis, 9-LOXs facilitate infestation by Myzus persicae, commonly known as the green peach aphid (GPA), a sap-sucking insect, and infection by the fungal pathogen Fusarium graminearum. in comparison to the wild-type plant, lox5 mutants, which are deficient in a 9-lipoxygenase, GPA population was smaller and the insect sp… more
Date: May 2012
Creator: Nalam, Vamsi J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The 50,000 Watt Blowtorch of the Great Southwest: The History of WBAP

Description: This paper looks at the history of WBAP while examining how programming has changed from 1922-2014 and how WBAPs audience helped shape programming at the station. This paper reveals four formatting changes throughout the stations history and provides in-depth statistical analysis of how WBAPs audience changed during the stations 90 plus years of existence.
Date: December 2016
Creator: Dixon, Chad M
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

161 Glass: Site Specific Music in an Artistic Context

Description: The composition 161 Glass is a 17-minute musical work with percussion, wind and brass instruments in which the intersection of mid-century architecture, and the art and culture of a dynamic city are inextricably linked. Through this paper, I explore the process of composing a musical work in relationship to the significance of site specific context. The paper begins by defining the concept of site specific art works; then reviews the discourse of the intersection of art, music and architecture.… more
Date: May 2010
Creator: Rusnak, Christina S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A 018μm Cmos Transmitter for Ecg Signals

Description: Electrocardiography (ECG) signal transmitter is the device used to transmit the electrical signals of the heart to the remote machine. These electrical signals are ECG signals caused due to electrical activities in the heart. ECG signals have very low amplitude and frequency; hence amplification of the signals is needed to strengthen the signal. Conversion of the amplified signal into digital information and transmitting that information without losing any data is the key. This information is f… more
Date: December 2013
Creator: Kakarna, Tejaswi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

489 Days

Description: 489 Days is an animated documentary about the harrowing experiences of Egyptian-American Mohamed Soltan, who survived 16 months of hunger strike in an Egyptian prison. Caught up in the political turmoil which followed the Arab Spring uprisings, Soltan was unjustly incarcerated between August 2013 and May 2015, when the United States government intervened to release him weeks after an Egyptian court sentenced him to life in prison. The film is also the larger story of an estimated 60,000 politic… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 2019
Creator: Elmalky, Rania
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The 1896 Vienna Tonkünstler-verein Competition: the Three Award-winning Works and Seven Anonymous Submissions with Clarinet

Description: The Vienna Tonkünstler-Verein (1885-1929) was established for the sole purpose of providing extensive support to the music and musicians of Vienna. The society became renowned in Vienna for its outstanding performances of chamber music and counted among its members many of the city’s foremost musicians and composers. Johannes Brahms had a significant influence on the society as its honorary president and assisted in establishing its composition competitions, aimed at promoting and reviving unde… more
Date: August 2014
Creator: Harrell, Andrea
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

2D and 3D Fabrication Devices: Can They Improve Spatial Reasoning Skills in Children?

Description: The purpose of this study is to evaluate the potential benefit of two hours of activities involving 2D and 3D fabricators on the spatial reasoning skills of children in Grades 4 and 5, ages 9 to 10, from a private school in Southeast Texas. Can the introduction to hands-on activities with products created with these devices and learning about how these devices operate improve spatial reasoning skills? The research also evaluates the use of the Shapes Test as a valid measure of the spatial reaso… more
Date: August 2016
Creator: Zimmerman, Ellen L
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

3D Reconstruction Using Lidar and Visual Images

Description: In this research, multi-perspective image registration using LiDAR and visual images was considered. 2D-3D image registration is a difficult task because it requires the extraction of different semantic features from each modality. This problem is solved in three parts. The first step involves detection and extraction of common features from each of the data sets. The second step consists of associating the common features between two different modalities. Traditional methods use lines or ortho… more
Date: December 2012
Creator: Duraisamy, Prakash
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

3GPP Long Term Evolution LTE Scheduling

Description: Future generation cellular networks are expected to deliver an omnipresent broadband access network for an endlessly increasing number of subscribers. Long term Evolution (LTE) represents a significant milestone towards wireless networks known as 4G cellular networks. A key feature of LTE is the implementation of enhanced Radio Resource Management (RRM) mechanism to improve the system performance. The structure of LTE networks was simplified by diminishing the number of the nodes of the core ne… more
Date: December 2013
Creator: Alotaibi, Sultan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Ab Initio and Density Functional Investigation of the Conformer Manifold of Melatonin and a Proposal for a Simple Dft-based Diagnostic for Nondynamical Correlation

Description: In this work we address two problems in computational chemistry relevant to biomolecular modeling. In the first project, we consider the conformer space of melatonin as a a representative example of “real-life” flexible biomolecules. Geometries for all 52 unique conformers are optimized using spin-component scaled MP2, and then relative energies are obtained at the CCSD (T) level near the complete basis set limit. These are then used to validate a variety of DFT methods with and without empiric… more
Date: August 2013
Creator: Fogueri, Uma
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Abelian Group Actions and Hypersmooth Equivalence Relations

Description: We show that any Borel action on a standard Borel space of a group which is topologically isomorphic to the sum of a countable abelian group with a countable sum of lines and circles induces an orbit equivalence relation which is hypersmooth. We also show that any Borel action of a second countable locally compact abelian group on a standard Borel space induces an orbit equivalence relation which is essentially hyperfinite, generalizing a result of Gao and Jackson for the countable abelian grou… more
Date: May 2019
Creator: Cotton, Michael R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Ability of Offenders with Psychopathic Traits to Simulate Cognitive and Affective Empathy

Description: The accurate assessment of psychopathy constitutes a critical component of forensic assessments addressing offender populations. Among the core characteristics of psychopathy, the interpersonal component of deception and empathic deficits are prominently observed in offenders with psychopathic traits. Given the negative consequences of being classified as a psychopath, offenders may be likely to minimize their psychopathic traits. In particular, no research has investigated whether offenders… more
Date: August 2013
Creator: Robinson, Emily V.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Absorptive Capacity: An Empirical Examination of the Phenomenon and Relationships with Firm Capabilities

Description: The field of strategic management addresses challenges that firms encounter in an attempt to remain competitive. The ability to explain variation in firm success through examination of knowledge flows has become a prominent focus of research in the strategic management literature. Specifically, researchers have sought to further examine how firms convert knowledge, a phenomenon conceptualized as absorptive capacity. Absorptive capacity is the firm’s ability to acquire, assimilate, transform, … more
Date: May 2012
Creator: Daspit, Josh
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic Advising Professional Characteristics and Standards: Do Academic Advisors Follow Recognized Professional Standards in Their Work?

Description: There were two main purposes of this quantitative study. The first purpose was to identify characteristics associated with the selected sample of academic advisors that comprise study. Secondly, the study sought to determine how well work related activities of a selected population of academic advisors correlate with professional characteristics constructs and professional standards constructs of academic advising as a profession. The study used Habley’s (1986) characteristics of a professio… more
Date: May 2014
Creator: Shelton, Kiesha R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Academic and Athletic Experiences of African-american Males in a Division I (Fbs) Football Program

Description: This study investigated the academic and athletic experiences of African-American males in a Division I football bowl subdivision football program. Critical race theory, identity development model, and social learning model were the theoretical frameworks used as the critical lenses in a qualitative design to examine the participants. The participants’ responses were analyzed and interpreted using thematic analysis. A qualitative research design, which included individual interviews with 10 sec… more
Date: December 2013
Creator: Salinas, Silvia M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic and Social Functioning of College Students with Attention-Deficit/Hyperactivity Disorder (ADHD)

Description: Attention-deficit/hyperactivity disorder (ADHD) is a complicated psychiatric disorder that is typically first diagnosed in childhood and associated with negative outcomes in adulthood such as poor academic performance and difficulties with social relationships. ADHD can be difficult to accurately diagnose in adulthood, given the absence of clear, agreed upon ADHD symptomology in adults. In the current study, two raters used psychometrically sound instruments and diagnostically valid assessment … more
Date: December 2017
Creator: Calmenson, Nina
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic Progress Scores to Predict Performance on a State Assessment

Description: This quantitative study examined seventh-grade reading scores to determine the extent to which certain demographic variables (race/ethnicity, gender, socioeconomic status) explain and MAP reading scores predict reading scores on the State of Texas Assessment of Academic Readiness (STAAR) in a selected northeast Texas public school. Standardized assessments only compare the relative performance of an individual student to other groups of students using scaled scores, which can vary from year to… more
Date: December 2016
Creator: Curry, David Mitchell
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic Reading Online: Digital Reading Strategies of Graduate-level English Language Learners

Description: English language learners (ELLs) face many linguistic and cultural challenges in their attempts to succeed academically. They encounter complex academic text, which is increasingly presented online. Although some research has addressed the challenges that university-level ELLs face when reading online texts, almost all of this prior work has focused on undergraduates. The purpose of the current study was to investigate the reading strategies employed by graduate-level ELLs when reading an acade… more
Date: May 2015
Creator: Knezek, Lois Ann
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic Self-efficacy of Adult First-generation Students Enrolled in Online Undergraduate Courses

Description: This study examined differences between adult first-generation (AFG) and adult-continuing generation (ACG) students’ academic self-efficacy with regard to the online courses in which they were currently enrolled. The study used an online survey methodology to collect self-reported quantitative data from 1,768 undergraduate students enrolled in an online course at a mid-sized, four-year public university in the southwestern United States; 325 cases were usable for the study. The t-tests revealed… more
Date: August 2014
Creator: Jackson, Delores
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic, Social and Emotional Functioning of College Students with Attention-Deficit/Hyperactivity Disorder (ADHD)

Description: Attention deficit/hyperactivity disorder (ADHD) is frequently associated with negative occupational, social and psychological outcomes among community samples of adults; as such, it is expected that college students with ADHD face similar struggles. The research targeting this group of individuals, however, is sparse and tempered by significant limitations. The current study aimed to address methodological limitations in the current literature by including instruments to formally diagnosis ADHD… more
Date: August 2015
Creator: McKelvy, Tara N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Academic Steroid: Nonmedical Use of Prescription Stimulants at a North Texas University

Description: The goal of this study was to determine the extent, motivations, and justifications of nonmedical prescription stimulant use among the population at a large public university in the North Texas region. Participants consisted of 526 undergraduate students enrolled at the studied university during the spring and summer 2014 semesters. The findings of the study suggest that the nonmedical use by students was higher than the findings in much of the current literature, but was within the parameters … more
Date: December 2014
Creator: Pennington, Cody W.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Academic Stress in Student-Athletes

Description: Academic stress and the causes of such stress are subjects that are found in very few studies concerning student-athletes. Therefore, the purpose of this quantitative study is to determine how the following variables relate to academic stress and perceived stress either through correlations or differences--demographics, academic classification, major or field of study, athletic scholarship status, and season of sport (in- season/ out of season). An online questionnaire containing a Perceived St… more
Date: May 2017
Creator: James, Christina L. J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Accelerated Corrosion Test with Operation Simulation of All-Aluminum Microchannel Heat Exchangers

Description: The HVAC&R industry is looking to transition from copper-aluminum heat exchangers to all-aluminum microchannel technology. The want for the transition stemmed from seeing the performance improvement of all-aluminum microchannel radiators in the automotive industry. Applications differ between the two industries; therefore, applying this technology for HVAC&R use must be validated. Research towards operating modes of an all-aluminum heat exchanger in a defined corrosive environment will provide … more
Date: May 2016
Creator: Vaughan, Haydn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Accelerated Degree Program Faculty: Motivation to Teach

Description: Adult educators are a growing part of American higher education. Because of their increasing prominence in adult education, it is essential to understand what roles these educators play and what motivates them to remain in the profession despite poor work prospects and conditions. Research to date, however, focuses primarily on the adult learner and not the adult educator. The purpose of this qualitative, multiple-case study was to explore the role and motivation for teaching of adult educato… more
Date: May 2016
Creator: Grishkevich, Hanna H.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
Back to Top of Screen