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Palo Pinto street scene

Street scene in Palo Pinto, near the courthouse square.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Historic Plaque, Jonathan Hamilton Baker

Photograph of a historic marker in Palo Pinto, Texas. It reads: "Jonathan Hamilton Baker (July 13, 1832 - October 18, 1918). Virginia native Jonathan Hamilton "Ham" Baker came to Texas in 1858 with his brother G. W. Baker and his uncle Eli Young. Stricken by malaria while a teacher in Fort Worth, he later moved to Palo Pinto County where his uncle Frank Baker was homesteading. Here he opened a school in Palo Pinto, and soon after helped establish the town's first Methodist Church. In 1859 Baker was chosen to lead a company of local men organized to defend the area against Indian attacks. He first served under Capt. J. R. Baylor and later participated with Capt. Lawrence Sullivan Ross in the recovery of Cynthia Ann Parker, the white woman seized by Comanches in 1836. During the Civil War he served as leader of the home guard. Baker was also an open range cattleman, and in 1869 he began driving his herds to Kansas railheads. Active in local government, he served as Deputy Sheriff, Justice of the Peace, Deputy Postmaster and Clerk of the County and District. In 1890 he moved to Granbury, where he became a successful nurseryman. For …
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Pioneer Memorial, Palo Pinto County

Dedicated to the honor and memory of the Pioneers and Settlers of Palo Pinto County, unveiled 1957. 1857 -1957 Centennial.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Pioneer Memorial, Palo Pinto County, back side with map

Pioneer Memorial, Palo Pinto County, back side with map
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Palo Pinto County Courthouse, plaque on building

Palo Pinto County Courthouse, built 1940 has been placed on the National Register of Historic Places by the United States Department of the Interior.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Veterans Memorial, Palo Pinto County

Dedicated to the men and women of Palo Pinto County who have served in all our wars with honor and sacrifice.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Palo Pinto Fire Department sign

Palo Pinto Fire Department sign
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Palo Pinto street scene

Street scene in Palo Pinto near the courthouse square.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

Real Estate Office in Palo Pinto

Real Estate Office in Palo Pinto on the corner of Oak and S. 5th Ave., on the courthouse square.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History

[Brown Stone Building]

Photograph of a brown stone building in Palo Pinto, Texas (at 5th and Oak). A road is visible in the foreground, and there is a red truck to the left.
Date: May 2, 2006
Creator: Belden, Dreanna L.
Object Type: Photograph
System: The Portal to Texas History
The Adoption and Use of Electronic Information Resources by a Non-Traditional User Group: Automotive Service Technicians. (open access)

The Adoption and Use of Electronic Information Resources by a Non-Traditional User Group: Automotive Service Technicians.

The growing complexity of machines has led to a concomitant increase in the amount and complexity of the information needed by those charged with servicing them. This, in turn, has led to a need for more robust methods for storing and distributing information and for a workforce more sophisticated in its use of information resources. As a result, the service trades have "professionalized," adopting more rigorous academic standards and developing ongoing certification programs. The current paper deals with the acceptance of advanced electronic information technology by skilled service personnel, specifically, automotive service technicians. The theoretical basis of the study is Davis' technology acceptance model. The purpose of the study is to determine the effects of three external factors on the operation of the model: age, work experience, and education/certification level. The research design is in two parts, beginning with an onsite observation and interviews to establish the environment. During the second part of the research process a survey was administered to a sample of automotive service technicians. Results indicated significant inverse relationships between age and acceptance and between experience and acceptance. A significant positive relationship was shown between education, particularly certification, and acceptance.
Date: May 2006
Creator: Almquist, Arne J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Bayesian Probabilistic Reasoning Applied to Mathematical Epidemiology for Predictive Spatiotemporal Analysis of Infectious Diseases (open access)

Bayesian Probabilistic Reasoning Applied to Mathematical Epidemiology for Predictive Spatiotemporal Analysis of Infectious Diseases

Abstract Probabilistic reasoning under uncertainty suits well to analysis of disease dynamics. The stochastic nature of disease progression is modeled by applying the principles of Bayesian learning. Bayesian learning predicts the disease progression, including prevalence and incidence, for a geographic region and demographic composition. Public health resources, prioritized by the order of risk levels of the population, will efficiently minimize the disease spread and curtail the epidemic at the earliest. A Bayesian network representing the outbreak of influenza and pneumonia in a geographic region is ported to a newer region with different demographic composition. Upon analysis for the newer region, the corresponding prevalence of influenza and pneumonia among the different demographic subgroups is inferred for the newer region. Bayesian reasoning coupled with disease timeline is used to reverse engineer an influenza outbreak for a given geographic and demographic setting. The temporal flow of the epidemic among the different sections of the population is analyzed to identify the corresponding risk levels. In comparison to spread vaccination, prioritizing the limited vaccination resources to the higher risk groups results in relatively lower influenza prevalence. HIV incidence in Texas from 1989-2002 is analyzed using demographic based epidemic curves. Dynamic Bayesian networks are integrated with …
Date: May 2006
Creator: Abbas, Kaja Moinudeen
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Integrated Architecture for Ad Hoc Grids (open access)

An Integrated Architecture for Ad Hoc Grids

Extensive research has been conducted by the grid community to enable large-scale collaborations in pre-configured environments. grid collaborations can vary in scale and motivation resulting in a coarse classification of grids: national grid, project grid, enterprise grid, and volunteer grid. Despite the differences in scope and scale, all the traditional grids in practice share some common assumptions. They support mutually collaborative communities, adopt a centralized control for membership, and assume a well-defined non-changing collaboration. To support grid applications that do not confirm to these assumptions, we propose the concept of ad hoc grids. In the context of this research, we propose a novel architecture for ad hoc grids that integrates a suite of component frameworks. Specifically, our architecture combines the community management framework, security framework, abstraction framework, quality of service framework, and reputation framework. The overarching objective of our integrated architecture is to support a variety of grid applications in a self-controlled fashion with the help of a self-organizing ad hoc community. We introduce mechanisms in our architecture that successfully isolates malicious elements from the community, inherently improving the quality of grid services and extracting deterministic quality assurances from the underlying infrastructure. We also emphasize on the technology-independence of our …
Date: May 2006
Creator: Amin, Kaizar Abdul Husain
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Functional Ontology Construction: A Pragmatic Approach to Addressing Problems Concerning the Individual and the Informing Environment (open access)

Functional Ontology Construction: A Pragmatic Approach to Addressing Problems Concerning the Individual and the Informing Environment

Functional ontology construction (FOC) is an approach for modeling the relationships between a user and the informing environment by means of analysis of the user's behavior and the elements of the environment that have behavioral function. The FOC approach is an application of behavior analytic techniques and concepts to problems within information science. The FOC approach is both an alternative and a compliment to the cognitive viewpoint commonly found in models of behavior in information science. The basis for the synthesis of behavior analysis and information science is a shared tradition of pragmatism between the fields. The application of behavior analytic concepts brings with it the notion of selection by consequence. Selection is examined on the biological, behavioral, and cultural levels. Two perspicuous examples of the application of the FOC modeling approach are included. The first example looks at the document functioning as a reinforcer in a human operant experimental setting. The second example is an examination of the verbal behavior of expert film analyst, Raymond Bellour, the structure of a film he analyzed, and the elements of the film's structure that had behavioral function for Bellour. The FOC approach is examined within the ontological space of information science.
Date: May 2006
Creator: Anderson, Richard L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Influence of Fredrik Melius Christiansen on Six Minnesota Conductor-Composers (open access)

The Influence of Fredrik Melius Christiansen on Six Minnesota Conductor-Composers

F. Melius Christiansen was very influential in the a cappella choral tradition. He started his career in Norway and brought his expertise to the American Midwest. Christiansen established a name for himself while working at St. Olaf Lutheran College as the head of the music department. It was the blended choral sound and precision he was able to achieve and display with his new choir in 1912 that caught everyone's ear. He continued to succeed with national and international tours, allowing him to spread his new "St. Olaf" choral sound through his music, compositions, and conducting school. This study explores the influence of F. Melius Christiansen (1871-1955) and the Minnesota choral tradition on six subsequent conductor-composers' compositions and conducting styles, including: Olaf Christiansen (1901-1984), Paul J. Christiansen (1914-1997), Kenneth Jennings (b. 1925), Robert Scholz (b. 1940), René Clausen (b. 1953), and Kenneth Hodgson (b. 1939) using Schenkerian analysis.
Date: May 2006
Creator: Armendarez, Christina Marie
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Regulation of pyrimidine biosynthesis and virulence factor production in wild type, Pyr- and Crc- mutants in Pseudomonas aeruginosa. (open access)

Regulation of pyrimidine biosynthesis and virulence factor production in wild type, Pyr- and Crc- mutants in Pseudomonas aeruginosa.

Previous research in our laboratory established that pyrB, pyrC or pyrD knock-out mutants in Pseudomonas aeruginosa required pyrimidines for growth. Each mutant was also discovered to be defective in the production of virulence factors. Moreover, the addition of exogenous uracil did not restore the mutant to wild type virulence levels. In an earlier study using non-pathogenic P. putida, mutants blocked in one of the first three enzymes of the pyrimidine pathway produced no pyoverdine pigment while mutants blocked in the fourth, fifth or sixth steps produced copious quantities of pigment, just like wild type P. putida. The present study explored the correlation between pyrimidine auxotrophy and pigment production in P. aeruginosa. Since the pigment pyoverdine is a siderophore it may also be considered a virulence factor. Other virulence factors tested included casein protease, elastase, hemolysin, swimming, swarming and twitching motilities, and iron binding capacity. In all cases, these virulence factors were significantly decreased in the pyrB, pyrC or pyrD mutants and even in the presence of uracil did not attain wild type levels. In order to complete this comprehensive study, pyrimidine mutants blocked in the fifth (pyrE) and sixth (pyrF) steps of the biosynthetic pathway were examined in P. aeruginosa. …
Date: May 2006
Creator: Asfour, Hani
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Exploring the relationship between continuing professional education and job satisfaction for information technology professionals in higher education. (open access)

Exploring the relationship between continuing professional education and job satisfaction for information technology professionals in higher education.

The study had four main hypotheses that examined the relationships between job satisfaction and the reasons for attending continuing professional education (CPE). The purpose of this study was to examine the relationships between training and job satisfaction with the objective of adding to the body of knowledge related to both job satisfaction and training and development. Participation Reasons Scale was used to measure the reasons for attending CPE activities, and the Job in General Scale and Job Descriptive Index was used to measure job satisfaction. The surveys were administered over the Internet to information technology professionals working in higher education. The participants were contacted by email with a message explaining the purpose of the research and a Web link that took the participants directly to the survey. After collecting the data, it was exported into SPSS and analyzed using Spearman Rho and Mann Whitney U statistics and a simple structure exploratory factor to determine any underlying structures between the job satisfaction and CPE.
Date: May 2006
Creator: Bennett, Sandra M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Leaf elemental analysis and growth characteristics of mycorrhizal treated post oak seedlings via particle induced X-ray emission spectroscopy. (open access)

Leaf elemental analysis and growth characteristics of mycorrhizal treated post oak seedlings via particle induced X-ray emission spectroscopy.

Growth and element assimilation was investigated in post oak seedlings exposed to four different treatment combinations of fertilization and ectomycorrhizal inoculation. Element concentration in excised leaves was analyzed via particle induced X-ray emission spectrometry with a 1.8 MeV proton macrobeam. Mean growth was significantly different across the treatment groups as well as mean concentration of Mg, Al, S, K, Ca, Fe, Cu, and Zn. The data suggest that fertilization rather than mycorrhizal inoculation had a stronger influence on plant growth and nutrient uptake. A follow up study was conducted with a 3 MeV microbeam. A 850 μm2 scanned area of a post oak leaf produced topographical maps of 11 elements.
Date: May 2006
Creator: Boling, Blake C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Relationships among Perception of Stigma, Ethnic Identity, and Acculturation in People Living with HIV/AIDS (open access)

The Relationships among Perception of Stigma, Ethnic Identity, and Acculturation in People Living with HIV/AIDS

The HIV/AIDS epidemic continues to grow and minorities have been affected at a disproportionate rate. Two factors that are hypothesized to be associated with HIV/AIDS stigma include ethnic identity and acculturation. The current study uses a diverse, gender-balanced sample (n= 201, aged 23-68) of African-Americans (54.2%), European Americans (31.8%), and Latinos/Hispanics (10%) to evaluate the relationship among the proposed variables. The study found that higher levels of ethnic identity and other group orientation were associated with lower levels of perceived HIV/AIDS stigma. A stepwise linear regression analysis (adjusted R2 = .13, F(11, 189) = 3.74, p < .001) revealed that as the level of inclusiveness of other ethnic groups (t = -4.263, p < .001) increases, the level of perceived HIV/AIDS stigma decreases. The results from this study suggest that the development of interventions that address stigma and inclusiveness of other ethnic groups may benefit people living with HIV/AIDS.
Date: May 2006
Creator: Chiapa, Ana Luz
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Opening Section of Isang Yun's My Land My People: A Cross-Section of Korean and Western Musical Features (open access)

The Opening Section of Isang Yun's My Land My People: A Cross-Section of Korean and Western Musical Features

Isang Yun's oratorio My Land My People is organized in four movements, and is scored for orchestra, solo voice and choir. Movements are titled as follows: Rjoksa (History), Hyon-Shil I (Presence I), Hyon-shil II (Presence II), and Mi-rae (Future). This document only covers from measures 1-38 of the first section of the first movement of this work. Even though this work is atonal, the composer emphasizes a harmonically moving, tonal sonority: interval class five includes perfect 4th and 5th, quintal-quartal harmony and authentic cadence moving dominant to tonic. Also, in this document, a comparison with Korean traditional music elements is included to support Isang Yun's musical features.
Date: May 2006
Creator: Choi, Woohyuk
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Jobs for America's Graduates: A school-to-career program. (open access)

Jobs for America's Graduates: A school-to-career program.

The purpose of this study was to examine a school-to-career program created and operated by a non-profit organization called Jobs for America's Graduates, Inc. (JAG). During the school year 2003-2004, they provided this service to 12,205 students in 426 schools and 21 states. Data was collected to measure the following: (a) were they successful in helping students graduate from high school, find a career, enter postsecondary education or the military; (b) how many of the youth were still employed 12 months after graduation; and (c) did school demographic and socioeconomic factors affect JAG's performance. JAG is a 25 year old organization that works with at-risk youth to help them graduate from high school and move into gainful employment, further education or the military. They provide students with nine months of in school instruction, mentoring, career connections and 12 months of follow-up service. Data was collected by job specialists through job placement reports and 12 month follow-up reports. School demographic and socioeconomic information was collected via the Internet. This study discovered that JAG students are graduating from high school at levels well above the national rates, attaining 90% graduation rather than the average of 68% (Swanson, 2004a). A year after graduation …
Date: May 2006
Creator: Calloway, J'Quita Payne
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Social skills use of adolescents with learning disabilities: An application of Bandura's theory of reciprocal interaction. (open access)

Social skills use of adolescents with learning disabilities: An application of Bandura's theory of reciprocal interaction.

This was a mixed methods study designed to investigate the social skills use of adolescents with learning disabilities through an application of Albert Bandura's theory of reciprocal interaction. Data were collected through ranking surveys, observations, interviews, and school records. Three questions were investigated. The first question was to determine whether the language deficits of LD students contributed to their general decreased social competency. Through data from the Social Skills Rating System, the seventh grade participants were considered socially competent to some degree by self report, their teachers, and their parents. Factor analysis revealed students were the best predictors of their social skills use from all data sources. In ranking participants' social skills use, students and teachers were more strongly correlated than were students and parents, or teachers and parents. No relationship of any strength existed between the participants' cognitive ability and their social competence. A use of Bandura's determinants indicated that a relationship existed between some subtypes of learning disabilities and some types of social skills misuse. The participants diagnosed with reading disability, auditory processing disability, receptive/expressive language disability, or nonverbal learning disability all made the majority of their observed social skills errors in the environmental determinant of Bandura's triad …
Date: May 2006
Creator: Clore, Christine W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Modeling the Impact and Intervention of a Sexually Transmitted Disease: Human Papilloma Virus (open access)

Modeling the Impact and Intervention of a Sexually Transmitted Disease: Human Papilloma Virus

Many human papilloma virus (HPV) types are sexually transmitted and HPV DNA types 16, 18, 31, and 45 account for more than 75% if all cervical dysplasia. Candidate vaccines are successfully completing US Federal Drug Agency (FDA) phase III testing and several drug companies are in licensing arbitration. Once this vaccine become available it is unlikely that 100% vaccination coverage will be probable; hence, the need for vaccination strategies that will have the greatest reduction on the endemic prevalence of HPV. This thesis introduces two discrete-time models for evaluating the effect of demographic-biased vaccination strategies: one model incorporates temporal demographics (i.e., age) in population compartments; the other non-temporal demographics (i.e., race, ethnicity). Also presented is an intuitive Web-based interface that was developed to allow the user to evaluate the effects on prevalence of a demographic-biased intervention by tailoring the model parameters to specific demographics and geographical region.
Date: May 2006
Creator: Corley, Courtney D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Patterns of verbal communication in children with special needs. (open access)

Patterns of verbal communication in children with special needs.

The social interactions between children with special needs, learning disabilities and/or attention deficit disorder (ADHD), were investigated. The children were observed in groups of three/four while creating a cooperative art project. During this activity, their interactions were recorded and coded for patterns of verbal communication. Verbal communication was evaluated through statements reflecting requests for information and materials; helping/cooperation/giving; consideration/positive reinforcement; competitiveness; intrusiveness; rejection; self-image; neutral statements; and persuasiveness. Results indicated that children with special needs tended to engage in a greater frequency of helping/cooperative/giving statements as opposed to any other verbal statements. Specifically, positive statements as opposed to negative statements classified their verbal interactions. These children also appeared to demonstrate more internalizing behaviors than externalizing behaviors. The influence of children's behaviors on children's verbal statements was examined. Results indicated that children who evidenced a disability in reading or language appeared to engage in a greater frequency of cooperative or helping statements than their non-disabled peers. Intrusive tendencies may be associated with the following: presence of a reading disability, absence of ADHD, and absence of a disability in written expression. Additionally, the conversations of children with a disability in mixed receptive language tended to evidence a greater frequency of neutral statements …
Date: May 2006
Creator: Conde, Joann M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library