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Exploration of Explanatory Variables in the Creation of Linear Regression Models and Logistic Regression Models to Predict the Performance of Preservice Teachers on the Science Portion of the EC-6 TExES Certification Examination
The purpose of this study was to analyze the current and pre-service conditions that can affect student teachers' preparedness to pass the science portion of the EC-6 Texas Examinations for Educator Standards (TExES), one of the mandatory certification exam to become a teacher in Texas. Two types of prediction models were employed in this study: binomial logistic regression and multiple linear regression. The independent variables used in this study were: final grade in BIOL 1082, classification of students, transfer status, taken college biology, taken college chemistry, taken college physics, taken college environmental science, taken college earth science, attending college part-time, number of credits taken during the semester, first-generation college student, relatives with degree in education, and current GPA. The dependent variable of this study was the posttest score on science portion of the EC-6 TExES practice exam. A total of 170 preservice teachers participated this study. This study used students enrolled in BIOL 1082, who volunteered to take a Biology for Educators QualtricsTM survey and the EC-6 TExES practice exam in a pretest (start of semester) and posttest (end of semester) form. The findings of this study revealed that the single best predictor of preservice teachers' performance on the science …
Date:
December 2019
Creator:
Alexis, Naudin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Building a Collaborative Smartphone Application for Blind and Low Vision Visitors at the Dallas Museum of Art
The goal of my study is to develop a mobile application to enable all visitors, including blind and low-vision visitors, to autonomously gather and share information about interpretations of art and to have a fully independent museum-going experience. With an application, blind visitors have more access to opportunities and tools in the museum, which empowers their museum experience. My study used a qualitative, mixed-methods approach to research how blind and low vision museum visitors might increase their independence in the museum space and discover ways to equalize their access without relying on museum educators. In carrying out my study, I conducted interviews and collected data based on observations and transcribed and analyzed them using a grounded theory approach. I used Freire's theory of pedagogy of the oppressed and hooks' theory of education as the practice of freedom to frame my study.
Date:
May 2019
Creator:
Aljuidan, Hanan Abdulaziz M
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Impact of Sociocultural and Information Communication Technology Adoption Factors on the Everyday Life Information Seeking Behavior of Saudi Students in the United States
Access:
Use of this item is restricted to the UNT Community
This study analyzes the sociocultural factors that affect Saudi students in the U.S. as they seek information and explores to what extent these factors impact their everyday life information seeking (ELIS) behavior and their information technology behavior (ITB). The factors in this study illustrate the unique sociocultural values that distinguish Saudi students from other international student groups: gender segregation, emphasis on religion, social support, and utilization of the consultation concept. After collecting data from an online survey, the data from linear regression analyses revealed that only one culture factor (the language barrier) showed a significant impact on Saudi student ELIS in the U.S., while the other factors were not statistically significant. Also, the findings indicated that perceived usefulness (PU) and perceived ease of use (PEU) were statistically significant to the ELIS of Saudi students. Furthermore, the study showed that after academic information, food and drink, entertainment, and health were the top student needs, the top ranking sources for everyday life seeking information were social media and the Internet. The findings of the study help to shed light on a sizable user group. As the fourth largest group of international students in the U.S., Saudi students have been underrepresented in research. …
Date:
May 2019
Creator:
Alkahtani, Latifah M
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
"Driving Lessons" and Other Stories
Access:
Use of this item is restricted to the UNT Community
A study through short stories of the emotional effects on close family relationships before and after a traumatic death.
Date:
December 2019
Creator:
Allen, Laura Spencer
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Automated extraction of attributes from natural language attribute-based access control (ABAC) Policies
Article (1) developing a practical framework to extract authorization attributes of hierarchical ABAC system from natural language artifacts, and (2) generating a set of realistic synthetic natural language access control policies (NLACPs) to evaluate the proposed framework.
Date:
January 21, 2019
Creator:
Alohaly, Manar; Takabi, Hassan & Blanco, Eduardo
Object Type:
Article
System:
The UNT Digital Library
A Combined Metabolomics and Fluxomics Analysis Identifies Steps Limiting Oil Synthesis in Maize Embryos
Article comparing the metabolism of embryos from two different maize lines, Alex and LH59, to test the hypothesis that directly changing their carbon metabolism may be the key to increasing oil content in maize kernels without affecting yield.
Date:
September 17, 2019
Creator:
Alonso, Ana Paula; Cocuron, Jean-Christophe; Koubaa, Mohamed; Kimmelfield, Rebecca & Ross, Zacchary
Object Type:
Article
System:
The UNT Digital Library
From linear to non-linear broadcast contents: considering an "augmented audiovisual archive"
Presentation for the 2019 International Internet Preservation Consortium General Assembly and Web Archiving Conference. This presentation proposes ideas for improving audiovisual archives in light of new media distribution methods.
Date:
June 7, 2019
Creator:
Alquier, Eleonore
Object Type:
Presentation
System:
The UNT Digital Library
Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions
Article using the two-channel Kohn inverse and Kohn variational methods to investigate ground-state positronium (Ps) formation in positron-hydrogen collisions in the Ore gap. This is the Accepted Manuscript Version of the article.
Date:
September 30, 2019
Creator:
Alrowaily, Albandari W.; Quintanilla, Sandra J. & Van Reeth, P.
Object Type:
Article
System:
The UNT Digital Library
Spectral, Electrochemical, and Solar Cell Studies of Peripheral Modified Carboxy Zinc Porphyrins
Six peripherally meso-modified Zn (II) porphyrin sensitizer dyes are designed and their J-V performance in dye sensitized solar cell (DSSC) evaluated. Electron-donating groups including phenothiazine, carbazole and pyrene are used to modify the porphyrin macrocycle at the meso-carbon position(s). To compare the effect of donor substitution on the performance of the cells in terms of short circuit current (Jsc), light harvesting efficiency (LHE) and power conversion efficiency (η), two sets of sensitizers with different degrees of substitution are synthesized. One set of dyes (mono-substituted) have one electron donor at trans-position to the acceptor, while the second set (tri-substituted) dyes have three of the same type electron donor groups at 5, 10 and 15 meso-carbon positions making all the six dyes push-pull type sensitizers incorporating 4'-carboxyphenyl as an electron-acceptor/anchor group. Different spectroscopic and electrochemical methods are used to study the photophysical and electrochemical properties of the dyes, while the photovoltaic performance of their cells under 1.5 A.M is studied using solar simulator. Meso-substitution of Zinc (II) porphyrin with these small donor molecules is shown to improve the light harvesting character of the Zinc (II) porphyrin macrocycle in the UV-Vis absorption while at same time improving its fluorescence quantum yield, excited-state life …
Date:
May 2019
Creator:
Alsaleh, Ajyal Zaki
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Data-Driven Computational Framework to Assess the Risk of Epidemics at Global Mass Gatherings
This dissertation presents a data-driven computational epidemic framework to simulate disease epidemics at global mass gatherings. The annual Muslim pilgrimage to Makkah, Saudi Arabia is used to demonstrate the simulation and analysis of various disease transmission scenarios throughout the different stages of the event from the arrival to the departure of international participants. The proposed agent-based epidemic model efficiently captures the demographic, spatial, and temporal heterogeneity at each stage of the global event of Hajj. Experimental results indicate the substantial impact of the demographic and mobility patterns of the heterogeneous population of pilgrims on the progression of the disease spread in the different stages of Hajj. In addition, these simulations suggest that the differences in the spatial and temporal settings in each stage can significantly affect the dynamic of the disease. Finally, the epidemic simulations conducted at the different stages in this dissertation illustrate the impact of the differences between the duration of each stage in the event and the length of the infectious and latent periods. This research contributes to a better understanding of epidemic modeling in the context of global mass gatherings to predict the risk of disease pandemics caused by associated international travel. The computational modeling and …
Date:
May 2019
Creator:
Alshammari, Sultanah
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Nuestra Voz (Fort Worth, Tex.), Vol. 5, Ed. 1, July 2019
Monthly newspaper providing news and information to the Tarrant, Dallas, and Denton County Latino communities along with advertising.
Date:
July 2019
Creator:
Alvarado, Felix
Object Type:
Newspaper
System:
The Portal to Texas History
ISO 30401:2018: Uma Análise Crítica do Requisito 4.4 – Sistema de Gestão do Conhecimento
Paper aims to make a critical analysis of requirement 4.4 of ISO 30401: 2018, entitled “Knowledge Management System”: the item that establishes guidelines on how knowledge management should be applied in organizations.
Date:
December 4, 2019
Creator:
Alvez, Juliano Keller; Lapolli, Joiceli Rossoni; de Moraes, Leonard Almeida; dos Santos, Neri & Lapolli, Édis Mafra
Object Type:
Paper
System:
The UNT Digital Library
Isolation and Bioinformatic Characterization of Four Novel Bacteriophages from Streptomyces toxytricini
Six initial phage isolates with high titer lysates were obtained using Streptomyces toxytricini B-5426 as the host bacterium. These isolates were named Goby, Toma, Yosif, Yara, Deema, and Hsoos. However, upon completion of the sequencing, it was found that the Yara and Hsoos isolates were identical, as were Goby and Deema. As a result, final analysis was completed on only the four unique isolates. All of the phages mentioned above were isolated from soil samples from different locations. Also, they had different sizes of plaques, ranging from 0.3 – 0.9mm. Yosif had the largest plaque size. Yara's head diameter was 79nm with tail diameter of 94nm.
Date:
May 2019
Creator:
Alzaid, Hessah
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Southwest Retort, Volume 71, Number 5, January 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
January 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 71, Number 6, February 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
February 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 71, Number 7, March 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
March 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 71, Number 8, April 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
April 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 71, Number 9, May 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
May 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 72, Number 1, September 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
September 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 72, Number 2, October 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
October 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 72, Number 3, November 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
November 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 72, Number 4, December 2019
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
December 2019
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Chemical Information Bulletin, Volume 71, Number 1, Spring 2019
Periodic supplement for "the regular journals of the American Chemical Society," containing annotated bibliographies of chemical documentation literature as well as information about meetings, conferences, awards, scholarships, and other news from the American Chemical Society (ACS) Division of Chemical Literature.
Date:
Spring 2019
Creator:
American Chemical Society. Division of Chemical Information.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Chemical Information Bulletin, Volume 71, Number 2, Summer 2019
Periodic supplement for "the regular journals of the American Chemical Society," containing annotated bibliographies of chemical documentation literature as well as information about meetings, conferences, awards, scholarships, and other news from the American Chemical Society (ACS) Division of Chemical Literature.
Date:
Summer 2019
Creator:
American Chemical Society. Division of Chemical Information.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library