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The Bobwhite Population Decline: Its History, Genetic Consequences, and Studies on Techniques for Locating and Assessing Current Populations (open access)

The Bobwhite Population Decline: Its History, Genetic Consequences, and Studies on Techniques for Locating and Assessing Current Populations

The northern bobwhite (Colinus virginianus) population decline is a severe, rangewide phenomenon beginning >150 years ago and continuing today. In this investigation, I: 1. document the timeline of bobwhite population decline and unintended genetic consequences of attempted remedies, 2) develop a model useful for predicting possible locations of potentially sustainable bobwhite populations in semiarid rangeland in Texas and Oklahoma, and 3) examine the relationship between population monitoring data and meteorological factors. While breeding season call counts of male bobwhite have been used for >70 years to provide estimates of fall populations for hunting, most studies of call counts have focused on mathematics and statistical accuracy of the count, largely overlooking the influence of meteorological factors on call counts. Here, I present the results of >4,400 individual point counts and examine their relationship with meteorological variables recorded at each stop. Humidity was positively correlated with the number of birds recorded (ρ = 0.275, p < 0.001) and temperature was negatively correlated (ρ = -0.252, p < 0.001). The number of birds recorded was significantly higher in wet years than in drought years. There was no significant correlation between wind velocity and number of birds recorded. These results suggest that, while weather …
Date: May 2019
Creator: Whitt, Jeffrey Glen
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Evaluating the Efficacy of Engagement Journalism in Local News: An Ethnographic Study of the Dallas Morning News (open access)

Evaluating the Efficacy of Engagement Journalism in Local News: An Ethnographic Study of the Dallas Morning News

The Dallas Morning News is a leader in using engagement journalism to increase and retain digital subscribers. This ethnography examined the efficacy of the engagement journalism work by the News in rebuilding trust and forming relationships with its audience. This research is exceptionally timely as more newsrooms are erecting paywalls to their content and asking their audiences to offer monetary support in exchange for greater access and engagement by journalists. This work is examined through two mass communications theories: functionalism, which says a society can be viewed like an ecosystem as a "system in balance" consisting of complex sets of interrelated activities, each of which supports the others in maintaining the system as a whole; and the dual responsibility model, which says that companies should operate in the best interests of all in the community who depend on them, not only those who benefit financially. Additionally, the work is considered from a human-interaction design standpoint to evaluate whether the News has created affordances that enable the journalists and the readers to communicate, and whether the journalists are effectively practicing service design when publishing news and information for the audience.
Date: May 2019
Creator: Wise, Hannah Marie
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Exploring District and Campus Leaders' Practices that Support Homeless Students in Public Schools (open access)

Exploring District and Campus Leaders' Practices that Support Homeless Students in Public Schools

This qualitative case study explored how school district and campus-level administrators coordinate resources and services for currently enrolled homeless students. Participants in this study included three district-level administrators designated as the homeless liaison and three campus principals. Data collected and analyzed included audio recordings of semi-structured interviews of each participant, documents at the district and campus-levels, school board meeting notes, and research field notes. The findings suggested that district and campus stakeholders embraced a shared vision of collaborative policy implementation to support the needs of students living in homelessness conditions. Findings also suggested that moral purpose is reflected through the intentional, collaborative efforts of district and campus administrators. Additionally, the findings suggested that social capital develops in the collaborative processes between district and campus leaders while they broker resources to foster developing social capital of this student population. Mobilization of resources through collaborative policy implementation can foster cohesion while supporting students and can counter the impact of living in homelessness conditions.
Date: May 2019
Creator: Walker, Tonia L
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Green Entrepreneurialism and the Making of the Trinity River Corridor: The Intersection of Nature and Capital in Dallas, Texas

Access: Use of this item is restricted to the UNT Community
Since the adoption of neoliberalism, many cities have taken to integrating nature with capital accumulation to create a sense of place. This has been closely tied to urban greening, or green "revitalization." As part of curating this desired character, city governments are working to roll out plans to restore and renew neighborhoods using their natural landscapes through methods such as reforestation, the creation of parks, and commercial development. These cities, deemed Entrepreneurial cities, are increasingly incorporating natural or green spaces into their development of character as part of their branding schemes. This research focuses on the role of nature as the site of economic development and community revitalization within Dallas, Texas. This research examines how the City of Dallas uses nature to attract capital, and how the narratives of development relate to residents' visions for development in the historically neglected Joppa neighborhood in the Trinity River Corridor. Development near Joppa could be an example of how the natural landscape is being used to not only attract developers but also to bring a different ‘class' of resident into the area. By exploring this intersection of nature and capital in Dallas, we can better understand the nuanced ways through which the neoliberalization …
Date: May 2019
Creator: Krupala, Katie Ilene
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Increasing Effective Thermal Resistance of Building Envelope's Insulation Using Polyurethane Foam Incorporated with Phase Change Material (open access)

Increasing Effective Thermal Resistance of Building Envelope's Insulation Using Polyurethane Foam Incorporated with Phase Change Material

Incorporating insulation material with phase change materials (PCMs) could help enhance the insulation capability for further building energy savings by reducing the HVAC loadings. During the phase change process between the solid and liquid states, heat is being absorbed or released by PCMs depending on the surrounding temperature. This research explores the benefits of a polyurethane (PU)-PCM composite insulation material through infiltrating paraffin wax as PCM into PU open cell foam. The new PU-PCM composite provides extra shielding from the exterior hot temperatures for buildings. Through this study, it was demonstrated that PU-PCM composite insulation could potentially help building energy savings through reducing the loads on the HVAC systems based on the building energy modeling using EnergyPlus. The Zero Energy Lab (ZØE) at the University of North Texas was modeled and studied in the EnergyPlus. It is a detached building with all wall facades exposed to the ambient. It was determined that the new PU-PCM insulation material could provide 14% total energy saving per year and reduce the electricity use due to cooling only by around 30%.
Date: May 2019
Creator: Houl, Yassine
Object Type: Thesis or Dissertation
System: The UNT Digital Library
South Texas Catholic (Corpus Christi, Tex.), Vol. 54, No. 5, Ed. 1, May 2019 (open access)

South Texas Catholic (Corpus Christi, Tex.), Vol. 54, No. 5, Ed. 1, May 2019

Monthly newspaper from Corpus Christi, Texas published by the Diocese of Corpus Christi that includes news of interest to Diocese members along with advertising.
Date: May 2019
Creator: Cottingham, Mary
Object Type: Newspaper
System: The Portal to Texas History
Southwest Retort, Volume 71, Number 9, May 2019 (open access)

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
Student Perceptions of Teacher Credibility: A Predictor of Academic Success (open access)

Student Perceptions of Teacher Credibility: A Predictor of Academic Success

While the idea of source or teacher credibility dates back to the Greek philosopher, Aristotle, research to connect this perceived credibility with individual affective and cognitive growth is a more recent phenomenon. In 2009, a credibility learning model connecting perceived credibility to cognitive learning with university-aged subjects was established. In contrast, this research project focused on determining a link between K-12 students' perception of teacher credibility, as determined by a student survey, to cognitive academic achievement as rated by a standardized test, the State of Texas Assessment of Academic Readiness (STAAR). The survey data were obtained through a pre-existing campus climate survey that was created to assist campus and district administrators in determining campus needs and developing a campus improvement plan. The assessment data were obtained through the Texas Education Agency database. The data were analyzed using quantitative research methods, including traditional univariate and multivariate statistical techniques such as principal component analysis, chi-square tests for independence, and binomial logistic regression. The findings of the study revealed no link between the survey instrument used and student academic achievement on the STAAR reading and mathematics assessment. The survey used did not align with the review of literature regarding student's perception of teacher …
Date: May 2019
Creator: Mathews, John R., Jr.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 18, Ed. 1 Thursday, May 2, 2019 (open access)

Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 18, Ed. 1 Thursday, May 2, 2019

Weekly Jewish newspaper from Dallas, Texas that includes local, state, and national news along with extensive advertising.
Date: May 2, 2019
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History
Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 19, Ed. 1 Thursday, May 9, 2019 (open access)

Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 19, Ed. 1 Thursday, May 9, 2019

Weekly Jewish newspaper from Dallas, Texas that includes local, state, and national news along with extensive advertising.
Date: May 9, 2019
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History
Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 20, Ed. 1 Thursday, May 16, 2019 (open access)

Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 20, Ed. 1 Thursday, May 16, 2019

Weekly Jewish newspaper from Dallas, Texas that includes local, state, and national news along with extensive advertising.
Date: May 16, 2019
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History

Texas Borderlands Newspaper Collection: Newspaper Preservation and Access, One Page at a Time

Presentation given at the Texas Conference on Digital Libraries 2019 in Austin, Texas. This presentation discusses the Texas Digital Newspaper Program (TDNP) and the Texas Borderlands Newspaper Collection, a project funded by the TexTreasures program of the Texas State Library and Archives Commission (TSLAC).
Date: May 22, 2019
Creator: Krahmer, Ana & Phillips, Mark Edward
Object Type: Presentation
System: The UNT Digital Library

University of North Texas

Slides and speaker notes for a portion of the panel “The State of Open Access in Texas Institutions” at the Texas Conference on Digital Libraries 2019.
Date: May 22, 2019
Creator: Hawkins, Kevin S.
Object Type: Presentation
System: The UNT Digital Library
Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 21, Ed. 1 Thursday, May 23, 2019 (open access)

Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 21, Ed. 1 Thursday, May 23, 2019

Weekly Jewish newspaper from Dallas, Texas that includes local, state, and national news along with extensive advertising.
Date: May 23, 2019
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History
Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 22, Ed. 1 Thursday, May 30, 2019 (open access)

Texas Jewish Post (Dallas, Tex.), Vol. 73, No. 22, Ed. 1 Thursday, May 30, 2019

Weekly Jewish newspaper from Dallas, Texas that includes local, state, and national news along with extensive advertising.
Date: May 30, 2019
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History