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898 Matching Results
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2021 State of the Fleet Report
Report over the Texas State Vehicle Fleet Management Plan, which identifies standard processes for establishing the appropriate number and type of state-operated vehicles and provides guidelines to maximize fleet use and maintain efficiency.
Date:
December 2020
Creator:
Texas. Comptroller's Office.
Object Type:
Report
System:
The Portal to Texas History
Adult Attachment, Perceived Social Support, and Problematic Video Gaming Behavior
With the growing popularity in video games, there has been increased concerns over the prolonged exposure to the entertainment medium. Problematic gaming is defined as a pattern of gaming behavior that causes significant impairment in personal, social, other important areas of functioning, often characterized by preoccupation and loss of interest in other areas. This study examined how problematic gaming behaviors may be influenced by insecure adult attachment and perceived social support from differing sources. It was hypothesized that avoidant attachment would have a significant direct and indirect effect (via perceived social support) on problematic gaming. In addition, perceived social support from online friends and from offline friends were hypothesized to moderate the relationship between attachment and problematic gaming, Participants were recruited from both SONA (n = 151) and Amazon's Mturk (n = 264) to complete an online research questionnaire that measured variables of interest. Results indicated that the direct and indirect effects of attachment avoidance on problematic gaming were supported in both subsamples but the moderator effects were not. Further exploratory analysis found that anxious attachment demonstrated a similar pattern as avoidant attachment, but with a significant moderator effect of perceived social support from online friends (enhance) on the attachment …
Date:
December 2020
Creator:
Gu, Peter
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Agile Practices in Data Science and Data Analytics Projects: A Research Agenda
The digital age comes with transformational activities (also referred to as digital transformation) triggered by emerging fields and technologies, such as data science and analytics, cybersecurity, cloud computing, blockchain, cryptocurrency, and nanotechnology; helping organizations stay current and competitive. This paper focuses on agile frameworks that support the delivery of data science/analytics projects to ensure organizations rapidly deliver analytics products and services to their customers.
Date:
December 2020
Creator:
Atolagbe-Olaoye, Abidemi
Object Type:
Paper
System:
The UNT Digital Library
Alexandria Ocasio-Cortez: Media Coverage of Age, Gender, and Ethnicity in the 116th Congress
This study focuses on Alexandria Ocasio-Cortez, the U.S. Representative for New York's 14th Congressional District, and how news media portray her based on her gender, age, and ethnicity, which still play essential roles in the political system in the United States. The analysis of previous academic research, newspaper articles from the New York Times and the Washington Post (June 1, 2018 to June 30, 2019) and framing and feminist theories are used to evaluate coverage of Alexandria Ocasio-Cortez. The newspaper stories are examined based on the framing of traits including being the youngest woman ever elected to Congress, being Latina, and being one the most progressive politicians in the Congress. The main objective of this study is to shed light on a topic that at this moment in time is more relevant than ever because the 116th Congress has the highest number of women and women of color in U.S. history. I examine media coverage that Rep. Alexandria Ocasio-Cortez receives for stereotypical frames, so that, overall, all women running or holding public office may receive unbiased and more balanced media coverage. This study also intends to hold media outlets accountable for the way they portray different candidates because it has …
Date:
December 2020
Creator:
Reyes, Blanca Elena
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of the Cytochrome P450 and UDP-Glucuronosyltransferase Families and Vitamin D3- Supplementation in Anoxia Survival in Caenorhabditis elegans
Alteration in diet and knockdown of detoxification genes impacts the response of C. elegans to oxygen deprivation stress. I hypothesized that feeding worms a vitamin D3-supplementation diet would result in differential oxygen deprivation stress response. We used a combination of wet lab and transcriptomics approach to investigate the effect of a vitamin-D3 supplemented diet on the global gene expression changes and the anoxia response phenotype of C. elegans (Chapter 2). C. elegans genome consists of 143 detoxification genes (cyp and ugt). The presence of a significant number of genes in these detoxification families was a challenge with identifying and selecting specific cyp and ugt genes for detailed analysis. Our goal was to understand the evolution, phylogenetic, and expression of the detoxification enzymes CYPs and UGTs in C. elegans (Chapter 3). We undertook a phylogenetic and bioinformatics approach to analyze the C. elegans, detoxification family. Phylogenetic analysis provided insight into the association of the human and C. elegans xenobiotic/endobiotic detoxification system. Protein coding genes in C. elegans have been predicted to be human orthologs. The results of this work demonstrate the role of C. elegans in the identification and characterization of vitamin D3 induced alterations in gene expression profile and anoxia …
Date:
December 2020
Creator:
Agarwal, Sujata
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Anthology of Tenor Arias from Korean Operas
The first Western opera to be performed in Korea was Verdi's La Traviata on January 16, 1948, by the Joseon Opera Company. The first Korean opera, Chunhyangjeon by Jae Myung Hyun, premiered at the Korean National Theater in May 1950, just before the outbreak of the Korean War. Daejeon.go.kr reports that since that year approximately 200 Korean operas have been produced in Korea. Nevertheless, there have been consistent efforts to create and introduce Korean operas to the public. Most of them ended up being "one-off" performances with a single production. Most research on Korean opera has focused on its history, the challenges of producing new operas, or an analysis of selected Korean operas. This study equips singers with the following: pertinent historical background with the libretto, a synopsis, research regarding the composer and librettist, a character analysis, vocal and textual analysis of the selected opera arias, instruction regarding the Korean language, IPA, and a word-by-word translation of the text. I also make recommendations for tenor arias from Korean operas for singers with specific voice types.
Date:
December 2020
Creator:
Joo, Kwan Kyun
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Application of Novel Microporous Polyolefin Silica-Based Substrate in Paper Spray Mass Spectrometry (PS-MS)
This study addressed five key applications of paper spray mass spectrometry (PS-MS): (i) comparative analysis of the microporous substrate with the cellulose-based substrate in drug detection; (ii) detection of more than 190 fentanyl analogs with their fragmentation pattern can be implemented in the future reference for quicker, accurate and sensitive determination; (iii) exploring sweat in a fingerprint to be considered an alternate method to recognize non-invasive markers of metabolites, lipids, narcotics, and explosive residues that can be used in forensic testing applications; (iv) extending and improving better, cost-effective and quick real-time monitoring of the diseased stage using biofluid samples to obtain vastly different lipid information in viral infection such as COVID-19; and (v) mass spectral detection in chemical warfare agent (CWA) stimulant gas exposure with microporous structure absorbency capabilities in air quality monitoring. This novel synthetic material is known as Teslin® (PPG Industries), consisting of a microporous polyolefin single-layered silica matrix, can be used for precise, sensitive, selective, and rapid sample analysis with PS-MS. The Teslin® substrate provided longer activation time for samples and an active signal with a higher concentration of ion formation and mobility compared to cellulose-based papers. Direct analysis of multiple samples showed that, besides being more …
Date:
December 2020
Creator:
Weligamage De Silva, Imesha
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Artificial Intelligence and Knowledge Management in South African Automotive Industries
Automotive industries in the developed world have strived to improve performance and productivity by incorporating Knowledge Management (KM) practices in their manufacturing processes. This has been attributed to the use of upgraded technological capabilities in the acquisition, sharing, and retention of organizational knowledge. Literature has unpacked that as much as automotive industries need Information Communication Technologies (ICTs) in their KM strategy, they should also include aspects of Artificial Intelligence (AI) to facilitate and share knowledge (Wisskirchen et al., 2017; Calitz, Poisat & Cullen, 2017; Cronin, Conway & Walsh, 2019). More so, they recognised the limitations of ICTs concerning the management of tacit knowledge, which is intangible and difficult to share, as it plays a crucial role in the KM process. Despite the interest of many authors towards KM in automotive industries, there is a lack of studies aimed at investigating AI as a KM enabler in the South African automotive industry. This is a relevant issue as knowledge in the automotive industries tends to manifest itself tacitly. This realization has spawned a growing interest in incorporating advanced technologies like artificial intelligence into KM practices to overcome knowledge loss and bringing in innovation in automotive industries. It is against this backdrop; …
Date:
December 2020
Creator:
Musonza, Charleen & Muchaonyerwa, Ndakasharwa
Object Type:
Paper
System:
The UNT Digital Library
Artist interviews and revisionist art history: women of African descent, critical practice and methods of rewriting dominant narratives
Article reflecting on over ten years of conducting and collecting interviews with and by women artists of African descent in a variety of formats (e.g. narrative arts writing, academic research and documentary film/video) to note the specific ways that artists’ interviews help to rewrite art-historical narratives.
Date:
December 2020
Creator:
Cross, Lauren E.
Object Type:
Article
System:
The UNT Digital Library
Aspectos Que Incutem Em Um Modelo Inovativo De Transformaçáo Agricola Digital No Brasil
The dynamics proposed by the information and communication technologies enter economic sectors and require new behaviors. Digital Agriculture is a way to adapt to the new scenario. However, the modernization movement requires that views on agricultural industries be compensated.
Date:
December 2020
Creator:
França, Renata; Corrêa, Fábio; de Araújo Nery Ribeiro, Jurema Suely; Ferreira, Eric & Ziviani, Fabrício
Object Type:
Paper
System:
The UNT Digital Library
Atomic Layer Deposition of Boron Oxide and Boron Nitride for Ultrashallow Doping and Capping Applications
The deposition of boron oxide (B₂O₃) films on silicon substrates is of significant interest in microelectronics for ultrashallow doping applications. However, thickness control and conformality of such films has been an issue in high aspect ratio 3D structures which have long replaced traditional planar transistor architectures. B₂O₃ films are also unstable in atmosphere, requiring a suitable capping barrier for passivation. The growth of continuous, stoichiometric B₂O₃ and boron nitride (BN) films has been demonstrated in this dissertation using Atomic Layer Deposition (ALD) and enhanced ALD methods for doping and capping applications. Low temperature ALD of B₂O₃ was achieved using BCl₃/H₂O precursors at 300 K. In situ x-ray photoelectron spectroscopy (XPS) was used to assess the purity and stoichiometry of deposited films with a high reported growth rate of ~2.5 Å/cycle. Free-radical assisted ALD of B₂O₃ was also demonstrated using non-corrosive trimethyl borate (TMB) precursor, in conjunction with mixed O₂/O-radical effluent, at 300 K. The influence of O₂/O flux on TMB-saturated Si surface was investigated using in situ XPS, residual gas analysis mass spectrometer (RGA-MS) and ab initio molecular dynamics simulations (AIMD). Both low and high flux regimes were studied in order to understand the trade-off between ligand removal and B₂O₃ …
Date:
December 2020
Creator:
Pilli, Aparna
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Austrian Army in the War of the Sixth Coalition: A Reassessment
The Austrian army played a crucial role in Napoleon's decisive defeat during the War of the Sixth Coalition. Often considered a staid, hidebound institution, the army showed considerable adaptation in a time that witnessed a revolution in the art of war. In particular, changes made after defeat in the War of the Fifth Coalition demonstrate the modernity of the army. It embraced the key features of the new revolutionary way of war, including mass mobilization, a strategy of annihilation, and tactics based on deep echelonment, mobility, and the flexible use of varied formations. While the Austrians did not achieve the compromise peace they desired in 1814, this represented a political failing rather than a military one. Nevertheless, the Austrian army was critical in securing the century of general European peace that lasted until the dawn of the Great War.
Date:
December 2020
Creator:
Messman, Daniel M
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 100, No. 173, Ed. 1 Tuesday, December 1, 2020
Triweekly newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 1, 2020
Creator:
Bloom, David
Object Type:
Newspaper
System:
The Portal to Texas History
Between Coalition and Unilateralism: The British War Machine in the Mediterranean, 1793-1796
In 1793, the British government embarked on a war against Revolutionary France that few expected would last twenty-five years and engulf all of Europe. Radical French policies provided an opportunity for William Pitt, the British prime minister, to endeavor to cobble a European alliance, including a number of Mediterranean states. These efforts never progressed beyond theory and negotiations because of conflicted policy and tension between the British diplomatic corps and Royal Navy over the strategic goals in the region. With diplomats focused on coalition building and military commanders focused on national objectives, British efforts never congealed into a unified effort to defeat Revolutionary France.
Date:
December 2020
Creator:
Baker, William Casey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Biennial Report on Texas Public Schools: 2020
The 2020 Comprehensive Biennial Report on Texas Public Schools describes the status of Texas public education, as required by §39.332 of the Texas Education Code. This chapter of the 2020 Comprehensive Biennial Report on Texas Public Schools presents the progress the state is making on the performance indicators established in Texas law. These indicators were presented in Academic Excellence Indicator System (AEIS) reports from 1990-91 to 2011-12. In the 2012-13 school year, the AEIS was renamed the Texas Academic Performance Report (TAPR) to reflect changes in legislation. Detailed analyses of three key performance indicators can be found in Chapters 2 and 5 of this report. Chapter 2 presents State of Texas Assessments of Academic Readiness (STAAR) results, and Chapter 5 presents graduation rates and dropout rates.
Date:
December 2020
Creator:
Texas Education Agency
Object Type:
Report
System:
The Portal to Texas History
Black and White Attitudes toward Interracial Marriage in the U.S.: The Role of Social Contact Characteristics
This research advances the literature on interracial marriage by using variables that align with the social contact hypothesis. The purpose of this project is to accurately gauge the exact social predictors influencing current attitudes towards Black and White interracial marriage. Multiple regression models containing social contact predictors are analyzed using data from the 2018 General Social Survey. The conclusive review of the literature summarizes age, region, and education as essential social contact predictors of attitudes towards interracial marriage. Therefore, the formulated hypotheses and multiple regression models measure this specific relationship controlling for other predictors such as sex and income. For Whites, the two most significant factors are age and living in the south vs. the west. Interestingly, a college education is not significant. For Blacks, the key contact variable that seems to matter is age. Baby boomers are less likely to favor interracial marriage. Overall, results show areas of convergence. Therefore, one's age is significant predictor for White and Black acceptance. However, it also shows divergence-region appears to only matter for Whites. Accordingly, younger Blacks and Whites were more likely to favor close relatives marrying individuals of the opposite race. Older Blacks and Whites were less likely to support interracial …
Date:
December 2020
Creator:
Coleman, Samuel
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Blended Learning During Pandemic Through Knowledge Management an Analytical Study
Blended learning (BL) assimilates the best digital high-tech learning and traditional methods that involve students in network learning transcending physical boundaries. It has been embraced as a possibility so that knowledge can be distributed through time and space. KM-based approaches may be used to collect, coordinate, and transmit intelligence to control processes that can be utilized efficiently to recognize and share the most important details to address customer needs. This study aims to explain how to apply KM techniques in the BL environment to increase educational excellence and quality during pandemic situations. The specific consequences of BL actions are also stated in this paper. The quantitative approach was used in this study by using an electronic questionnaire from the students of the department of ISLM of the University of Dhaka, Bangladesh. Among the 272 students in the undergraduate program, 74 students replied to the online survey questionnaire. The gathered data were analyzed using SPSS version 20. The Findings of the study showed that KM can be used with BL during the COVID-19 pandemic, including integrated tasks, classroom instruction, online and e-learning. Finally, the study also proposed an intuitive model for applying BL through KM.
Date:
December 2020
Creator:
Hasan, Khandakar Kamrul; Mukherjee, Debarshi; Othman, Roslina & Mostofa, Sk Mamun
Object Type:
Paper
System:
The UNT Digital Library
Bohuslav Martinů's Oboe Concerto, H. 353: A New Piano Reduction of the Orchestral Score
Bohuslav Martinů's "Concerto for Oboe and Small Orchestra" is one of the most frequently played pieces in the oboe repertoire. For this reason, it is often played with the piano reduction instead of the orchestra in oboe recitals. However, the existing piano reductions include many errors and discrepancies from the orchestral score, misrepresent the orchestration, sometimes fail to make the oboe entries clear, and tend to be unplayable for pianists. Moreover, the scores were published after the composer's death without him supervising the final editing. I have prepared a new, playable piano reduction to represent the orchestration more faithfully and help pianists work with their soloists more easily. Based on the work of Martin Katz, a prominent collaborative-pianist, I establish four principles for creating a new piano reduction. After scrutiny of the deficiencies of existing piano reductions, I suggest solutions for making the passages in question practical and bringing out the leading voices clearly so that the soloist can join in as easily as playing with an orchestra. To aid in reflecting the orchestral texture that Martinů created, I include abbreviated instrument names in many passages to help pianists to understand how to create balance. I have changed some passages …
Date:
December 2020
Creator:
Jeoung, Ko Eun
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Caesar Kleberg Wildlife Research Institute Report of Current Research: 2020
Annual report of the Caesar Kleberg Wildlife Research Institute discussing the institute's personnel and finances as well as compiled papers summarizing in-progress and completed research, with biographical information about authors and in-press publications.
Date:
December 2020
Creator:
Caesar Kleberg Wildlife Research Institute
Object Type:
Report
System:
The Portal to Texas History
Caregiver Knowledge of Risk Factors Associated with Complex Congenital Heart Disease and Quality of Life Outcomes
Congenital heart disease is the most common birth defect globally, affecting both children and their families. Twenty –five percent of children experiencing a CHD birth defect are diagnosed with complex CHD (cCHD), signifying critical heart dysfunction requiring one or more open-heart surgeries during the first year of life. With medical advances, cCHD survival rates have almost tripled in the last three decades. This has resulted in an increase in the number of morbidities associated with cCHD, which is drastically impacting the need to support quality of life outcomes for a child with cCHD and their family. The two most prevalent unaddressed risks for quality of life outcomes in the cCHD population are child and caregiver mental health and child's neurodevelopmental disabilities. Congenital heart disease is the most common birth defect globally, affecting both children and their families. Twenty-five percent of children experiencing a CHD birth defect are diagnosed with complex CHD (cCHD), signifying critical heart dysfunction requiring one or more open-heart surgeries during the first year of life. With medical advances, cCHD survival rates have almost tripled in the last three decades. This has resulted in an increase in the number of morbidities associated with cCHD, which is drastically impacting …
Date:
December 2020
Creator:
Hutchinson, Jessica B
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
City of Denton Resident Update: December 2020/January 2021
Newsletter issued by the city of Denton, Texas documenting news and updates, announcing events, and providing other information of interest to residents.
Date:
December 2020
Creator:
Denton (Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Class Enumeration and Parameter Bias in Growth Mixture Models with Misspecified Time-Varying Covariates: A Monte Carlo Simulation Study
Growth mixture modeling (GMM) is a useful tool for examining both between- and within-persons change over time and uncovering unobserved heterogeneity in growth trajectories. Importantly, the correct extraction of latent classes and parameter recovery can be dependent upon the type of covariates used. Time-varying covariates (TVCs) can influence class membership but are scarcely included in GMMs as predictors. Other times, TVCs are incorrectly modeled as time-invariant covariates (TICs). Additionally, problematic results can occur with the use of maximum likelihood (ML) estimation in GMMs, including convergence issues and sub-optimal maxima. In such cases, Bayesian estimation may prove to be a useful solution. The present Monte Carlo simulation study aimed to assess class enumeration accuracy and parameter recovery of GMMs with a TVC, particularly when a TVC has been incorrectly specified as a TIC. Both ML estimation and Bayesian estimation were examined. Results indicated that class enumeration indices perform less favorably in the case of TVC misspecification, particularly absolute class enumeration indices. Additionally, in the case of TVC misspecification, parameter bias was found to be greater than the generally accepted cutoff of 10%, particularly for variance estimates. It is recommended that researchers continue to use a variety of class enumeration indices during …
Date:
December 2020
Creator:
Palka, Jayme M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Closing the Opportunity Gap: Leadership Practices that Lead to Increases in Access to AP Courses for Latinx Students
Using an exploratory case study approach, this study examined the school leadership factors that contribute to building Latinx student social capital as well as the best practices for creating a more equitable AP program. Through this qualitative study, the organizational and leadership factors of the AP program at Stripes High School (pseudonym) were examined, and how these factors contributed toward closing the opportunity gap. This study used semi-structured interviews with district and campus leaders and an AP teachers focus group to determine leadership beliefs and actions that were successful in building an accessible and equitable advanced academics program for Latinx students, as well as an AP student focus group to triangulate the findings. The results of this study showed Latinx students, already lacking social capital, also face many barriers of different forms: systemic, structural and cultural in their educational opportunities for AP courses and exams. The case study campus overcame these barriers and increased equity by allowing Latinx students more access to AP courses and exams through district- and campus-level administrators working to remove barriers and hire and support the most capable and socially aware AP teachers who aim to grow and nurture the students who they serve. Based on …
Date:
December 2020
Creator:
Martinez, Jesús F.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Collaborative Governance and Social Innovation as Subsides to Public Governance
It is understood that Social Innovation (SI) is at the service of society, building a positive social value. Collaborative governance favors the government, with characteristics for a better form of applicability of its theories. Therefore, this article aims to identify how collaborative governance and social innovation collaborate for better governance in the public sector.
Date:
December 2020
Creator:
Aparecida Prim, Márcia; Zschornack, Thiago; Felipe dos Santos, Adriana; Loth, Adriana Falcão; de Sa Freire, Patricia & Artur de Souza, João
Object Type:
Paper
System:
The UNT Digital Library