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Applications of GIS and Remote Sensing for the Characterization of Habitat for Threatened and Endangered Species
Geographic Information Systems (GIS) and remote sensing technologies were used to identify and describe potential habitat for three species endemic to the Southwestern United States; the Golden-cheeked Warbler (Dendroica chrysoparia), the Black-capped Vireo (Vireo atricapillus), and the Texas kangaroo rat (Dipodomys elator). For each species, the computerized classification of digital satellite imagery was integrated with ancillary spatial information (e.g. soils, geology, and land use) to construct a data base to be used for ecological evaluation as well as habitat protection and management measures.
Date:
December 1989
Creator:
Shaw, Denice Marie, 1958-
System:
The UNT Digital Library
Attitudes Toward the Contemporary Role of the Library Media Specialist in the Overall Elementary School Program in North Central Texas
The purpose of this study, in addition to measuring and comparing attitudes of teachers, principals and library media specialists toward the role of the school library media specialist, was to identify and measure factors contributing to those attitudes. Nine factors were identified. Further path analysis revealed that the performance level of the library media specialist had the most influence on principals' and teachers' attitudes toward the Consultant, Technological and Instructional Roles. For principals and teachers, staff development had the most influence on attitudes toward the Management Role, while involvement in the school-wide program was most influential for library media specialists.
Date:
December 1989
Creator:
Roach, Catharyn
System:
The UNT Digital Library
A Cluster Analysis of the Parental Effectiveness Factors on the Custody Quotient Technique (CQ)
Subjects comprised four groups including: 73 judges; 90 family law practitioners; 38 psychologists; and 43 psychology graduate students. The subjects completed surveys designating the five most relevant and the five least relevant factors of effective parenting from a list of 85 such factors. As hypothesized, the family law attorneys and family law judges generated similar clusters of factors while the results of the psychologists and psychology graduate students likewise clustered similarly. These results suggest the possibility of the existence of common cognitive structures used in the custody decision-making process. Results could be used in the modification and refinement of the Custody Quotient (CQ) Technique. Future study could focus more specifically on the cognitive structures particular subjects use in making custody decisions.
Date:
December 1989
Creator:
Lewis, Melinda Keen
System:
The UNT Digital Library
Commonalities Among Women Superintendents in Texas
The major purpose of this descriptive study was to determine common characteristics and influences among women who were serving as public school superintendents of independent districts in Texas during the 1988-89 school year. Commonalities were determined in (1) personal characteristics, (2) personality traits, and (3) perceived barriers to career mobility. A seventy-item survey was developed, validated, and mailed to the thirty-three women superintendents in Texas. Data from the survey were analyzed to determine if commonalities existed among women superintendents. Based on the findings of this study, the following conclusions seem justified: (1) Commonalities in personal characteristics which exist among women superintendents include age, ethnicity, marital status, parenthood, positive attitudes toward being both mothers and superintendents, preference for husbands in the field of education, demonstration of early leadership traits, and self-perceptions of being assertive and risk-taking; (2) Most women superintendents share common views on subjective measures concerning their own personalities, and they rated themselves highest in areas which include self-esteem, general daily activity level, independence, job satisfaction, ability to operate under pressure and practicality; and (3) Most women superintendents perceive similar internal and external barriers to their career mobility; a lack of professional network and employers' negative attitudes toward women are …
Date:
December 1989
Creator:
Howell, Rachel W.
System:
The UNT Digital Library
Comparison and Contrast of Perceptions of Current and Ideal Levels of Involvement with Tasks Performed by School Library Media Supervisors
Comparison and contrast of perceptions of current and ideal levels of Involvement with 50 tasks by 45 district level school library media supervisors in Texas public schools was accomplished using a survey instrument eliciting information in three areas: Curriculum and Instruction, Public Relations and Communication, Actainistration and Budget. Using tasks based on a Texas Education Agency publication, i, tests for correlated means were used to determine statistically significant differences between means for current and ideal levels of involvement for supervisors grouped by age, degree and certification as well as for the group as a whole. Findings showed that most demographic groupings perceived a need for greater involvement with various curriculum planning and design activities, evaluation of noncertlficated library media personnel and with various public relations activities.
Date:
December 1989
Creator:
McCulley, Lois P. (Lois Perry)
System:
The UNT Digital Library
A Comparison of Academically At-Risk Students in Coordinated Vocational Academic Education Cooperative Education Programs With Non-Vocational Academically At-Risk Students
The research problem was to determine the perceived mean self-concept attitudes of academically at-risk students in Coordinated Vocational Academic Education (CVAE) cooperative education programs with at-risk students in regular academic programs as measured by the Piers-Harris Children's Self-Concept Scale.
Date:
December 1989
Creator:
Mosier, Virginia L. (Virginia Lou)
System:
The UNT Digital Library
The Comparison of Mandatory and Voluntary Compliance to Diet and Exercise Regimens Among Cardiovascular High Risk Seminary Theological Students
This study evaluated a mandatory fitness assessment and counseling program designed to reduce coronary risk factors related to diet and exercise. The study was conducted at a southwestern graduate level theological institution. There were 19 mandatory and 22 voluntary participants. Each subject initially had either high blood pressure, high percentage body fat, or high total cholesterol. Significant changes were made within both groups regarding body fat percentage and diastolic blood pressure. Total cholesterol levels decreased for the voluntary group only. The mandatory group significantly improved their exercise level, yet still showed a significantly less positive attitude towards exercise. Overall, the fitness assessment and counseling was somewhat beneficial for both the mandatory and voluntary groups.
Date:
December 1989
Creator:
Moorhead, Pamela K. (Pamela Kay)
System:
The UNT Digital Library
A Comparison of the Achievement of Two Groups of Algebra I Students and Teacher Scores on the Texas Teacher Appraisal System
The problem of this study was to determine if the teachers of Algebra I rated highest and lowest according to the Texas Teacher Appraisal System differed significantly in a measure of achievement. The analyses indicated that there were significant differences in achievement between the classes taught by the highest and lowest ranked teachers.
Date:
December 1989
Creator:
Shine, Thomas E. (Thomas Earl)
System:
The UNT Digital Library
Demographic and Psychological Predictors of Suicide Attempts and Ideation Among Adolescents
The present study attempted to identify demographic and psychological variables predictive of adolescent suicidal ideations and attempts. Data from 90 adolescents, who completed an intake form at a university community mental health clinic or were student volunteers, were utilized. Two judges tabulated information regarding age, gender, number of siblings, ethnicity, parental marital status, drug use, depression, suicidal ideation, and previous suicidal attempts. A multiple regression analysis was performed to identify which variables had predictive significance. Depression was the best predictor of both suicidal ideations and attempts. Ethnicity was also predictive; white adolescents were found to be at higher risk for suicide than individuals from other ethnic groups. It is suggested that additional studies be done exploring other predictors of suicide among adolescents.
Date:
December 1989
Creator:
Leonhardt, Heather
System:
The UNT Digital Library
Effects of Water Quality, Instream Toxicity, and Habitat Variability on Fish Assemblages in the Trinity River, Texas
The Trinity River flows through the Dallas-Ft. Worth Metroplex in north central Texas where it receives effluents from numerous point sources including seven large regional wastewater treatment facilities. Historically, the Trinity River has been impacted by massive wastewater loadings which often constitute > 80% of the total river discharge during low flow periods. Normally, high mass loadings correspond to the summer months, compounding the effects of a naturally stressful period, characterized by high temperatures and low dissolved oxygen concentrations. Samples from 12 stations were collected quarterly over an 18 month period from the Trinity River and two tributaries. Water samples were analyzed for a variety of water quality variables, including metals, priority pollutants, pesticides, and general water quality parameters. Water samples were also tested for acute and subchronic effects with several test species. Fish were collected at each station and assemblages were characterized using traditional classification techniques and the Index of Biotic Integrity. In addition, sediment samples were assessed for toxic effects which could have adversely impacted fish recruitment and in situ biomonitoring experiments were performed. Quantitative habitat characterization analyses were performed to gain additional information that could possibly explains differences in fish assemblage structure related to habitat variability. Data …
Date:
December 1989
Creator:
Arnold, Winfred R., 1960-
System:
The UNT Digital Library
First-Year Teacher Usage of Manipulatives in Mathematics Instruction: A Case Study
This qualitative case study examined the use of manipulatives in mathematics instruction by six first-year intermediate teachers in a north Texas school district. Their preparation for, access to, and perceptions about manipulatives were examined. Specific content associated with manipulative usage was identified.
Date:
December 1989
Creator:
Sylvester, Barbara N. (Barbara Nelson)
System:
The UNT Digital Library
Impact of Tax Complexity on Taxpayer Understanding
The purpose of this study is to determine the effect tax complexity has on taxpayers' understanding of the tax law. The individual income tax system in the United States is based on self assessment by the taxpayer. A self assessing system requires a high level of voluntary compliance by the participants. Taxpayers who file returns on time and file correctly are considered to be in compliance with the tax law. A taxpayer who cannot understand the rules for tax reporting logically does not have the ability to comply with the law. A tax system predicated on the presumption that the average taxpayer can understand and comply with the tax rules must not become so complex that the taxpayer is forced into either seeking external help or not fully complying. The question arises, does complexity affect the ability of taxpayers to understand, and thus comply with, the tax system?
Date:
December 1989
Creator:
Martindale, Bobbie Cook
System:
The UNT Digital Library
Interinstitutional Cooperation among Black Colleges in Texas
The persistent paucity of endowment monies and other funds and an attempt to minimize operating costs have led to a series of interinstitutional cooperative efforts between many historically black colleges in Texas and other institutions of higher learning. The Texas Association of Developing Colleges (TADC) is a multi-service consortium composed of Huston-Tillotson College, Jarvis Christian College, Paul Quinn College, Texas College, and Wiley College which are privately supported and church-related liberal arts colleges. The primary focus of the TADC is interinstitutional cooperation. Some general and specific problems and weaknesses endemic to many small private colleges, especially to small black private colleges, have been identified through analyses, interpretations, and inferences from a variety of data sources. The potential opportunity and success for strengthening these colleges and for solving some of their problems through self-effort, through additional support from external, nongovernmental sources, and through meaningful forms of interinstitutional cooperation are discussed and appear to be encouraging. Interinstitutional cooperation is already acceptable and functional among these five colleges through their participation in the Texas Association of Developing Colleges, and it is apparent that these five colleges, individually and collectively, have had commendable successes in meeting many of their goals and objectives through such …
Date:
December 1989
Creator:
Mofoye, Dafiotu M. Dennis (Dafiotu Mienyo Dennis)
System:
The UNT Digital Library
Manipulation of Efficacy Information to Enhance Muscular Endurance Performance
The present investigation was designed to examine the effects of the positive manipulation of information on self-efficacy and subsequent performance of 180 female subjects. High, moderate, and low self-efficacy subjects were randomly assigned to a treatment condition in a 3 x 4 x 3 (preexisting self-efficacy x efficacy information source x trials) factorial design. Information from the three efficacy sources of performance accomplishments, verbal persuasion, and vicarious experience was manipulated towards success after subjects completed a muscular leg endurance task. The results supported self-efficacy theory with high self-efficacy subjects extending their legs significantly longer than moderate and low self-efficacy subjects. However, subjects did not differentially [sic] respond to the manipulation of the efficacy information. Results are discussed in terms of efficacy as a mediator of performance on an endurance task as well as the lack of differential changes in efficacy based on the source from which that information is derived.
Date:
December 1989
Creator:
Lerner, J. Dana (Jocelyn Dana)
System:
The UNT Digital Library
Police Academies at Community Colleges in Texas
The problem of this study was selected aspects of public community college non-credit law enforcement training programs in Texas. Purposes of the study were: (a) to examine the development of police academies at community colleges in Texas; (b) to provide normative data describing the academies in terms of background, organization and administration, adequacy of facilities and equipment, personnel, student policies and practices, the program administrator's perceptions of internal and external support, involvement of outside forces and the extent of the program, and (c) to provide data which community colleges can use in organizing and developing police academies.
Date:
December 1989
Creator:
Wells, David A. (David Andrew)
System:
The UNT Digital Library
"The Politics of Restoration": the Rhetorical Vision of Camelot and Robert F. Kennedy's 1968 Campaign
This study critically analyzed four selected campaign speeches by Robert Kennedy from his 1968 campaign to determine his use of the Camelot myth and his success in portraying himself as the heir apparent to the Kennedy legend. Using procedures adapted from fantasy theme analysis, the rhetorical vision of Camelot was outlined, and the fantasy themes and fantasy types within it were determined. The public persona of Robert Kennedy was also evaluated. Throughout the speeches analyzed, Robert Kennedy invoked themes identified within the rhetorical vision of Camelot. In addition to his own themes of social justice and reconciliation, Kennedy promoted his brother's legend. Chaining evidence provided proof of the public's participation in the rhetorical vision demonstrating Kennedy's success with these themes.
Date:
December 1989
Creator:
Martin, Marilyn Ann, 1959-
System:
The UNT Digital Library
Predicting Failure in the Savings and Loan Industry: a Comparison of RAP and GAAP Accounting
The financial crisis facing the United States savings and loan industry has been steadily escalating over the last decade. During this time, accounting treatments concerning various thrift institution transactions have also attracted a great deal of attention. The specialized accounting treatments used in the thrift industry, known as regulatory accounting practices (RAP) have been blamed as one of the culprits hindering the regulators' ability to detect serious financial problems within many institutions. Accordingly, RAP was phased out, and all federally insured savings and loan associations began preparing their financial statements in accordance with generally accepted accounting principles (GAAP) as of January 1, 1989. The purpose of this dissertation is to compare the relative predictive values of the two historical cost based accounting conventions (RAP and GAAP) available to the savings and loar? industry during the 1980's. For purposes of this dissertation, predictive value is defined as the usefulness in assessing future financial health and viability. The sample consisted of all the institutions reporting to the Federal Home Loan Bank of Dallas between 1984 and 1989. Year-end thrift financial report data, obtained from Sheshunoff Information Services, Inc. (Austin, Texas) was used to calculate several financial ratios. The Federal Home Loan Bank …
Date:
December 1989
Creator:
Kenny, Sara York
System:
The UNT Digital Library
The Role of Admissions Officers in the Marketing Activities of Texas Colleges and Universities
This study concerns the role of admissions officers in the marketing activities of Texas Colleges and universities. The purposes of this study are to identify the marketing activities of Texas colleges and universities for admissions and recruiting, to determine if these marketing activities vary according to identified characteristics of the colleges and universities, to determine the role of admissions officers in marketing activities, and to determine the organizational structure for marketing activities in Texas colleges and universities.
Date:
December 1989
Creator:
Rahman, Nurudeen Kayode
System:
The UNT Digital Library
The Status of Transitional First Grade Programs in Regions 10 and 11 in North Central Texas
The purposes of this study were to identify public school districts that currently offer, or are planning to offer, transitional first-grade programs, to describe existing transitional programs, to describe the genesis of transitional first-grade classes in the North Texas area, and to assist in the establishment of a networking system for schools in the North Central Texas area that currently have, or are planning to have, transitional first-grade classes. The 158 school districts in Regions 10 and 11 were surveyed. The findings of the study indicate that about one-third of the districts offered transitional first-grade programs during the 1988-89 school year, and two-thirds of the districts saw a need for transitional first-grade classes. These transitional programs were implemented to meet the needs of children who had completed kindergarten but were not ready for regular first grade. Transitional first-grade programs focus primarily on language arts and math skills for kindergarten and early first grade. While curriculum materials vary from district to district, language arts is likely to be based on a whole-language approach, and math is likely to focus on manipulatives.. Kindergarten teacher observation is used in the screening procedures in the majority of the districts. A number of instruments are …
Date:
December 1989
Creator:
Angove, Dawn A. (Dawn Annyce)
System:
The UNT Digital Library
The Stoneflies (Plecoptera) of the Ozark and Ouachita Mountains
Collections of stoneflies (Plecoptera) were made at 603 stream sites from Nov. 1983 - May 1988 in the Ozark-Ouachita Mountain region, in relation to physiographic and vegetational characteristics. Examination of approximately 9000 vials from these collections, supplemented with material from major museums and other collectors, revealed 88 stonefly species in 8 families and 24 genera. Pearson's measure of association (R) showed there was a significant association between species present and each of the tested variables.
Date:
December 1989
Creator:
Poulton, Barry C. (Barry Charles)
System:
The UNT Digital Library
Systematics of Coccidian Parasites (Apicomplexa) from Amphibians and Reptiles in Northcentral Texas
Between February 1986 and October 1988, 863 amphibians and reptiles were collected in northcentral Texas and examined for coccidial parasites. Thirteen percent of amphibians <26% salamanders, 11% frogs and toads) and 28% of reptiles (54% turtles, 25% snakes) harbored 20 previously described and 16 new species of coccidia; overall prevalence of infection was 176/863 < 20%). Sixteen Ambvstoma texanum were infected with Eimeria ambystomae which represents new host and geographic locality records for the coccidium. Forty anurans were found to be passing coccidia, including Pseudacris streckeri. Bufo valliceos and Gastrophryne olivacea. Four new species of coccidia were described from anurans and include Eimeria flexuosa. E. streckeri. Isospora dellcatus and I_. fraaosum. However, oocysts found in B. v.. valliceps were determined experimentally to represent pseudoparasites. Sixty-eight turtles were infected with coccidia, including Chelvdra serpentina, Kinoeternon flavescens. Pseudemvs texana. Terrapeng ornata and Trachemvs scripta eleoans. Fourteen eimerians (5 of which are described as new species) were found in turtles. The new species from turtles include Eimeria cooteri, E. ornata, E. Btvlosa. E. texana and E. trachemvdis. Interestingly, all 96 lizards examined were negative for coccidia. Fifty-three snakes including 11 colubrids and 1 viperld harbored coccidia of the genera Caryospora. Cryptosporidium. Eimeria and …
Date:
December 1989
Creator:
McAllister, Chris Thomas
System:
The UNT Digital Library
Texas and the CCC: A Case Study in the Successful Administration of a Confederated State and Federal Program
Reacting to the Great Depression, Texans abandoned the philosophy of rugged individualism and turned to their state and federal governments for leadership. Texas's Governor Miriam Ferguson resultantly created the state's first relief agency, which administered all programs including those federally funded. Because the Roosevelt administration ordered state participation in and immediate implementation of the CCC, a multi-governmental, multi-departmental administrative alliance involving state and federal efforts resulted, which, because of scholars' preferences for research at the federal level, often is mistakenly described as a decentralized administration riddled with bureaucratic shortcomings. CCC operations within Texas, however, revealed that this complicated administrative structure embodied the reasons for the CCC's well-documented success.
Date:
December 1989
Creator:
Wellborn, Mark Alan
System:
The UNT Digital Library
Texas Public School Principals and Corporal Punishment: the Relationship Between Their Legal Awareness Of It and Their Attitude Toward Its Use
This study is an analysis of the relationship between the attitude of Texas school principals toward corporal punishment and their knowledge of the law pertaining to corporal punishment as it relates to the principals' school and personal characteristics.
Date:
December 1989
Creator:
Risinger, Charlotte L.
System:
The UNT Digital Library
Toxicological Characterization of Trinity River Sediments
Sediments in the Trinity River were chemically, physically and biologically characterized and assessed for toxicity. Laboratory bioassays were conducted to identify sediments which induced toxic responses in test organisms and to document these responses through time. Metal and organic contaminant concentrations in bottom sediments were measured. Relationships between these concentrations and biological responses observed in laboratory bioassays were determined. Toxicity identification / reduction methods were used to characterize sediment toxicants. Sediment oxygen demand was also measured in resuspended and undisturbed bottom sediments through time. The Background Sediment Chemistry Approach and the Sediment Bioassay Approach were used to assess sediment quality. Sediment toxicity was observed in whole sediment bioassays using Chironomus tentans as the test species. A relationship between sediment contaminant concentration and toxicity was observed in approximately sixty percent of the sediments. Oxygen demand of resuspended sediments was elevated in sediments at two locations on the river. Oxygen demand of undisturbed sediments was elevated at one location on the river. Characterization of sediment toxicants was conducted using EDTA, pH, and carbon treatments and manipulations of the sediments. Aeration tests were also used to evaluate the contribution of volatile organic contaminants to observed toxicity.
Date:
December 1989
Creator:
Hall, Jerry F. (Jerry Fowler)
System:
The UNT Digital Library