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Biodiversity of Dragonflies and Damselflies (Odonata) of the South-Central Nearctic and Adjacent Neotropical Biotic Provinces
The south-central United States serves as an important biogeographical link and dispersal corridor between Nearctic and Neotropical elements of western hemisphere odonate faunas. Its species are reasonably well known because of substantial collections, but there has been no concerted effort to document the extent of biodiversity and possible geographic affinities of dragonflies and damselflies of this region. The recent discoveries of Argia leonorae Garrison, Gomphus gonzalezi Dunkle and Erpetogomphus heterodon Garrison from southern and western Texas and northern Mexico suggest that Odonata species remain to be discovered in this area, particularly from far south Texas and northern Mexico. I have documented a total of 12,515 records of Odonata found in 408 counties within the south-central U.S. A total of 73 species of damselflies and 160 species of dragonflies was revealed in the region. The 233 (197 in Texas) Odonata species are distributed among 10 families and 66 genera. Illustrated family, generic, and species-level keys are provided. Since the beginning of this work in the Fall of 1993, one species has been added each to the Louisiana and Oklahoma faunas, and 12 species have been added, previously unreported from Texas, including four new to the U.S. The area of highest Odonata …
Date:
May 1999
Creator:
Abbott, John C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Doctoral Lecture Recital: 2013-02-11 – Armin Abdihodzic, guitar
Lecture recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
February 11, 2013
Creator:
Abdihodzic, Armin
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2015-03-26 - Shoko Abe, collaborative piano
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
March 26, 2015
Creator:
Abe, Shoko
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2005-06-13 – Shaun Abraham, trumpet
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
June 13, 2005
Creator:
Abraham, Shaun
Object Type:
Sound
System:
The UNT Digital Library
Perceived Effect of the Quarter System on the Programs of Selected Middle Schools in the State of Texas
The problem of this study was to analyze the effect that a legislature-mandated quarter system was having on certain selected middle schools in the State of Texas, Some educators have claimed that the quarter system makes it possible to add flexibility to school programs. This study, therefore, was an attempt to find out if local school districts were taking advantage of this opportunity. A second goal of the study was to determine how principals, teachers, and curriculum directors felt about the manner in which schools were implementing certain teaching strategies which experts in this field have recommended for use in middle schools. It was concluded that the schools were not taking advantage of the quarter system in order to more nearly approach the middle school concept. Educators do not seem to be against the innovations proposed by middle school authorities so it would seem that the time is right for a full commitment to the area of schooling for the middle years. The support of the general public then will be a key factor in the success of the middle school. Educators must make an effort to keep the public better informed about the way children learn and grow if …
Date:
August 1977
Creator:
Acuff, George D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Economic Development in Texas During Reconstruction, 1865-1875
The study challenges many traditional stereotypes of Texas during Reconstruction. Contrary to what Democrats charged, the Davis government did not levy exorbitant taxes. Radical taxes seemed high in comparison to antebellum taxes, because antebellum governments had financed operations with indemnity bonds, but they were not high in comparison to taxes in other states. Radical taxes constituted only 1.77 percent of the assessed value of property in Texas, which was lower than the average for the United States and about the same for other states undergoing Reconstruction. In Texas most of the tax increases during Reconstruction were made necessary by the Civil War and the increase in population. The tax increases paid for state and local governments, frontier and local protection, public buildings, internal improvements, and public schools. Edmund J. Davis, Radical governor, contributed significantly to Texas government when he attempted to focus attention on reforming the tax system,limiting state expenses to state income, limiting state aid for railroad companies, and protecting the public from railroad company abuses.
Date:
August 1980
Creator:
Adams, Larry Earl
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Ethnographic Study of Outstanding, Veteran Elementary Teachers
The purpose of this study was to describe outstanding, veteran elementary teachers using an ethnographic approach. This qualitative study was conducted in a suburban independent school district in northeast Texas serving approximately 17,000 students. The data collected focused on five outstanding, veteran elementary teachers who had at least twenty years of uninterrupted teaching service. Data were collected through interviews, classroom observations, and the administration of the Mind Styles (Gregorc,1982) inventory. The findings of this research were as follows. This study found that many factors were responsible for retaining outstanding, veteran elementary teachers in the work force. These included adequate preparation, a strong personal commitment, a successful initial teaching assignment, a development of skills and abilities inside and outside the teaching field, and professional accomplishments throughout the teaching career.
Date:
August 1992
Creator:
Adams, Sandra K. (Sandra Kay)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Identification of College Freshmen According to Scholastic and Persistence Potential
This study was designed to develop a procedure for the identification of freshman students at risk in the academic and social integration process at Texas Christian University. The data for the study were collected from the Student Information Form (SIF) and student records system at Texas Christian University. The data included demographic, attitudinal, educational background and one-year persistence indicators (retain and drop) as well as one-year cumulative grade point averages for the fall 1990 entering freshman class.
Date:
December 1992
Creator:
Adams, William F. (William Franklin)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Doctoral Lecture: 2011-07-14 – Michael Adduci, oboe
Lecture presented at the UNT College of Music Room M258 in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
July 14, 2011
Creator:
Adduci, Michael
Object Type:
Sound
System:
The UNT Digital Library
Strategic Planning and Strategy Implementation: A Study of Top Administration in Selected Institutions of Higher Education in Texas
The purpose of this study was to analyze data from different sizes and types of higher education institutions in order to identify differences and similarities that may exist between the perceptions of top executives relative to idea generation and strategy implementation activities in the administration of higher education in Texas. In order to carry out the purpose of this study, two hypotheses were tested concerning the perceptions of top executives (presidents and vice presidents) relative to idea generation and strategy implementation activities in institutions of higher education in Texas. Type and size of the institution are the primary factors involved with these two hypotheses.
Date:
May 1984
Creator:
Afifi, Rasoul
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of Academic, Personal, Social and Financial Satisfactions of International Students at North Texas State University
The problem of this study was to determine the academic, personal, social, and financial level of satisfaction of the international students at North Texas State University. The subjects were 351 international students representing fifty-four different countries. These students were enrolled full time during the fall semester of 1981. The instrument used to gather the data was a questionnaire. The questionnaire was validated by a panel of experts and pretested on a small sample of international students.
Date:
May 1983
Creator:
Ahmadian, Ahmad
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Satisfaction with College Among Selected Groups of International Students
The purpose of this study was twofold. The first purpose was to identify and determine the degree of satisfaction experienced by selected groups of international students at North Texas State University in Denton, Texas. The second purpose was to analyze and interpret the data collected in relation to selected demographic variables. The following hypotheses were devised to guide the interpretation of the data findings. 1. There will be a significant difference in the degree of satisfaction with university administration among the three selected groups of N.T.S.U. international students. 2. There will be a significant difference in the degree of satisfaction with university faculty among the three selected groups of N.T.S.U. international students. 3. There will be a significant difference in the degree of satisfaction with fellow students among the three selected groups of N.T.S.U. international students.
Date:
December 1984
Creator:
Ahmed, Marwa Kamel
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Doctoral Lecture Recital: 1988-04-25 – Joel Ahn, piano
Recital presented at the NTSU School of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 25, 1988
Creator:
Ahn, Joel
Object Type:
Sound
System:
The UNT Digital Library
The Use of Selected Aptitude Test Scores for Predicting Achievement in Modern Foreign Languages at North Texas State University
The problem of this study was to determine the value of certain selected aptitude test scores for predicting student achievement in Spanish, French, and German at North Texas State University. Particular emphasis was placed on freshmen enrolled in beginning courses.
Date:
August 1971
Creator:
Akins, Dolores C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Investigation of Factors Deterring Participation in Continuing Professional Education
This study was conceived as an attempt to determine .and analyze factors deterring participation in continuing professional education among social workers in environments where continuing education for relicensure is mandatory and voluntary. The specific research design implemented to complete this study was the ex-post facto descriptive design. The sample included 106 social workers randomly selected in the state of Texas where continuing education is mandatory and 94 social workers in the state of Louisiana where continuing education is voluntary. The instrument used was the Deterrent to Participation Scale developed by Scanlan (1983) and a demographic inventory. Scanlan (1983) earlier identified six factors deterring participation in continuing professional education: Disengagement, Lack of Quality, Family Constraints, Cost, Lack of Benefit, and Work Constraints. The study concluded that social workers in both states considered work constraint as a major factor deterring participation in continuing professional education. Also the factors of cost and lack of quality were also considered as crucial barriers in their efforts to participate in continuing professional education. The Wilks' multivariate test of significance of the means and univariate F tests at alpha level p < .05 revealed differences in the combined mean scores of social workers in both states when …
Date:
December 1985
Creator:
Akintade, Aribigbola
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Doctoral Lecture Recital: 2008-10-22 – Juan Àlamo, marimba
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
October 22, 2008
Creator:
Alamo, Juan
Object Type:
Sound
System:
The UNT Digital Library
Long-Term Citizen Science Water Monitoring Data: An Exploration of Accuracy over Space and Time
The Texas Stream Team (TST) is one of an increasing number of citizen science water monitoring programs throughout the US which have been continuously collecting surface water quality data under quality assurance protocols for decades. Volunteer monitoring efforts have generated monitoring datasets that are long-term, continuous, and cover a large geographic area - characteristics shown to be valuable for scientists and professional agencies. However, citizen science data has been of limited use to researchers due to concerns about the accuracy of data collected by volunteers, and the decades of water quality monitoring data collected by TST volunteers is not widely used, if at all. A growing body of studies have attempted to address accuracy concerns by comparing volunteer data to professional data, but this has rarely been done with large-scale, existing datasets like those collected by TST. This study assesses the accuracy of the volunteer water quality data collected across the state of Texas by the TST citizen science program between 1992-2017 by comparing it to professional data from corresponding stations during the same time period, as well as comparing existing and experimental data from a local TST partner agency. The results indicate that even large-scale, existing volunteer and professional …
Date:
December 2018
Creator:
Albus, Kelly
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Teacher Implementation of a Pretreatment Assessment Procedure in a Public Middle School
In an attempt to determine the effectiveness of a pretreatment assessment procedure known as the scatter plot (Touchette, MacDonald, & Langer, 1985), direct observational data was collected by 13 middle school teachers on four "problem" students. After four weeks of data collection, interobserver agreement probes were calculated and a visual analysis of the plotted data was performed to ascertain a possible pattern of problem behavior. Additionally, in an attempt to assess the teachers' perceptions of the scatter plot, the 13 teachers were asked to complete a questionnaire. Although a visual analysis of the plotted data suggested a possible pattern of problem behavior, interobserver agreement probes failed to achieve a desired overall reliability of 90% or higher. Despite a low IOA, results of the questionnaire administered to the 13 teachers generally supported the use of the scatter plot as a means of assessing student behavior. Possible reasons for failing to attain an IOA of 90% or higher include the total number of students in a class, the number of subjects observed per period, the teacher's location in the classroom, and the subjects ability to recognize if the teacher was "looking." Recommendations are provided regarding future research concerning the scatter plot and …
Date:
May 1999
Creator:
Alcala, Angelo L. (Angelo Lee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of the Business Communication Needs and Problems of Women in Entry-Level, Middle, and Upper Management Positions in Texas
The purpose of this study was to determine the business communication needs and problems of women in entry-level, middle, and upper management positions in Texas. A questionnaire was completed by sixty-eight female managers (twenty-one entry-level; forty middle; and seven upper). Female managers were asked to indicate the frequency of use and the importance of fourteen types of written and seven types of oral business communication, the importance of twenty-seven skills or knowledge, and the frequency with which they consider thirty-two skills or knowledge as problem areas. Data were also collected for the same number of male managers and were used to further interpret and complement the data on female managers. Results for female managers as a total group and male managers as a total group were evaluated by performing chi-square tests.
Date:
August 1992
Creator:
Alexander, Carol Jennings
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Self-Perceived Administrative Leadership Styles of Presidents, Vice-Presidents, and Deans in Public Community and Junior Colleges inTexas
The major purpose for this study was to determine the self-perceived leadership styles of the presidents, vice-presidents, and deans of public community and junior colleges in Texas in 1994. Administrators' choices of leadership style were also compared with personal characteristics of leaders, such as age, gender, title, number of years in current position, number of years in current institution, number of years in administration, degree earned, number of years in teaching, and number of full-time subordinates. The backgrounds of the administrators, particularly their previous experience, control over their respective budgets, size of their budgets (state, local, other, percentage of workers' compensation), and the ethnicity of leaders, were also examined. The Styles of Leadership Survey and a Demographic Information Form were used to collect the data.
Date:
August 1994
Creator:
Ali, Hamad Abdulkareem
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Perceived Impact of the Texas Career Ladder Plan upon the Motivational Levels of Teachers
The problem of this study was to determine the perceived impact of the Texas Career Ladder Plan upon the motivational levels of teachers. The purposes were to determine: the impact of the Texas Career Ladder Plan as an incentive for improved job performance; the strengths and weaknesses of the current Texas Career Ladder Plan; the types of incentives that teachers believe would motivate them to perform better; and the suggestions that teachers have to modify the current Texas Career Ladder Plan. An opinionnaire was developed to obtain data pertinent to the perceived impact of the Texas Career Ladder Plan in providing incentives for improved job performance. A random sample of 500 elementary school teachers and 500 secondary school teachers was selected from the personnel rosters of the participating schools. Data from 92 percent of the subjects sampled was achieved. A descriptive analysis was used to interpret data collected in this study. The findings indicated that the Texas Career Ladder Plan has had no impact or a perceived negative impact upon the motivational levels of teachers as indicated by 14 of the opinionnaire items surveyed. There was a perceived positive impact upon the motivational levels of teachers as indicated by eight …
Date:
December 1988
Creator:
Allen, Claudis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Exploratory Study of the Use of Accounting Information for Management Control of Faculty Salaries, Departmental Operating Expense, and Instructional Administration Expense at the Dean's Level in Selected State Colleges and Universities in Texas
The purpose of this study was to determine how deans of colleges within the state-supported, four-year universities in Texas use accounting information to allocate and control resources dedicated to faculty salaries, departmental operating expense, and instructional administration expense. Conclusions: 1. Communication is better between deans and financial officers at small universities than at large universities. 2. The relationship between line and staff appears to be misunderstood at several large universities. 3. Ten per cent of the deans at large universities and 2 per cent at small universities do not receive financial reports. 4. The financial reports, if comparative, usually compare year-to-date actual amounts with annual planned amounts. 5. Some of the deans keep their own set of financial records. 6. Deans are cost conscious and aware of the state formulas used in the state appropriation. 7. Many deans are frustrated and angry. 8. Most deans participate extensively in budgeting faculty salaries and departmental operating expense but 20 per cent do not participate in planning of instructional administration expense.
Date:
December 1975
Creator:
Althaus, Marlin Clinton
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Cognitive Level Demands of Test Items in State-Adopted Computer Science Textbooks
Test items supplied with seven textbooks approved for use in Computer Science I and II curricula in Texas public schools were categorized by Bloom's taxonomy of educational objectives. Eating was done by a panel of ten judges selected from a group of participants at a taxonomy workshop. The selection criterion was demonstration of at least 80 percent competency in item classification. Judges received a small stipend for completing the rating task. Of 2020 possible items, 998 were randomly selected for analysis. Equal percentages of items from each text were then randomly assigned to each rater. All statistical analyses were computed using SPSS/PC+ (version 2.1). In both courses, CLD frequencies decreased through the three lower levels. The percentage of questions falling in these levels was approximately 83 percent for both courses. However, the higher-level course contained almost 10 percent more Knowledge level questions than did the lower course. At the higher taxonomic levels, the decline was roughly five percent per level in CS I but erratic in CS II. Analysis by book also revealed wide differences within each course.
Date:
August 1988
Creator:
Aman, James R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Implementation of Transition from Spanish Reading to English Reading Programs in Bilingual Classrooms
The purpose of this study was to describe the actual implementation of the transition process as observed in bilingual classrooms, and in particular, to examine the critical components (policy, curricular, and instructional characteristics) of the Spanish-to-English reading transition policies implemented in bilingual education programs in elementary schools in the Denton Independent School District in Texas. Four research questions drove this study. To investigate these questions, a multidimensional, descriptive research design was employed. The researcher used questionnaires, interviews, and field observations. The 11 educators, 6 bilingual teachers, 2 school-site principals, 2 school-site coordinators, and 1 district bilingual coordinator, were asked several types of questions (open response and closed response) using different types of instruments (questionnaires and interviews). Also, the six bilingual teachers were observed using two types of instruments (field notes and video tapes).
Date:
December 1994
Creator:
Amaya, Jesús, 1956-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library