UNT Libraries - 2,921 Matching Results

Search Results

Biodiversity of Dragonflies and Damselflies (Odonata) of the South-Central Nearctic and Adjacent Neotropical Biotic Provinces

Description: 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 biodiversity overall (161 spp.) is in the Austroriparian biotic province. The greatest degree of faunal similarity between the south-central U.S. and other intra-continental regions was observed for the eastern (64%) United States. Diversity is a function of area, and as expected, the numbers of breeding birds and Odonata, in each contiguous U.S. state are positively correlated (r=0.376, n=33, p=0.031). There is, however, no strong correlation between land area and species diversity within the region, but those natural biotic provinces (Austroriparian, Texan, Balconian) where aquatic systems and topographic heterogeneity are the greatest provide a broader spectrum of potential Odonata habitats and ...
Date: May 1999
Creator: Abbott, John C.

An Art Program Utilizing Discarded Materials in the Improvement of Interiors of Homes of Children in a Low Income Group

Description: The problem with which this investigation is concerned is that of planning and carrying out an art program in which a particular group of students in a low income group, by utilizing discarded and inexpensive materials, can create useful and satisfying objects for the improvement of their home interiors.
Date: January 1960
Creator: Abram, W. B.

Perceived Effect of the Quarter System on the Programs of Selected Middle Schools in the State of Texas

Description: 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 this support is to be forthcoming.
Date: August 1977
Creator: Acuff, George D.

A Study of the Bacterial Flora of Food Utensils in Hardin College Cafeteria and Twenty-Five Eating Establishments in Wichita Falls, Texas

Description: The problem of this thesis consists primarily of a bacteriological survey of the eating utensils of Hardin College Cafeteria and twenty-five other eating establishments in the city of Wichita Falls, Texas. This investigation was made primarily with reference to a determination of the possible presence of typhoid and related organisms, and secondarily to an investigation of the actual presence of those bacterial organisms associated with the more common outbreaks of food poisoning.
Date: 1949
Creator: Adams, Isaac Newton

Economic Development in Texas During Reconstruction, 1865-1875

Description: 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

Post-Traumatic Symptomatology in the Luby's Shooting

Description: The role of exposure to a human-made disaster and the subsequent development of post-traumatic stress reactions were examined. Subjects included 49 males and 30 females who were variously exposed to the Luby's shooting incident in Killeen, Texas in October of 1991. Post-traumatic stress symptomatology was measured by the SCL-90R. Exposure was operationalized by using a scenario-rating scheme with independent raters estimating each subject's level of exposure. A regression and commonality analysis revealed that exposure is an important predictor in post-traumatic symptomatology. Premorbid functioning and gender were also found to play important roles, with females expressing higher levels of symptomatology.
Date: December 1993
Creator: Adams, Pam, 1964-

An Ethnographic Study of Outstanding, Veteran Elementary Teachers

Description: 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)

Identification of College Freshmen According to Scholastic and Persistence Potential

Description: 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)

A Proposed Industrial Arts General Shop Curriculum for Pauline G. Hughes Middle School, Burleson Independent School District

Description: This study was made to gather data and information to aid the Burleson Independent School District in initiating an industrial arts general shop program in the Pauline G. Hughes Middle School. The data and information were obtained from the Texas Education Agency, the Burleson Independent School District records, the vocational director, the assistant superintendent, a questionnaire, and the Brodhead-Garrett 1976-1977 Catalog. The majority of the general shop programs in the north Texas area conduct classes five days a week for fifty-five minutes a day and accommodate twenty-four students per class. Furthermore, the majority of the general shop programs offer three units of instruction per year and teach one unit of instruction each quarter.
Date: May 1978
Creator: Adams, William Leroy.

The Effects of Music and Operant Conditioning on Gross Motor Activity of Profound Mental Retardates

Description: It has not yet been demonstrated that music can be used therapeutically with profoundly retarded children. One way these children might be helped to respond to music, and therapeutically benefit from it, would be to use operant conditioning in an effort to enhance gross motor activity and then progressively shape responses until more complex behavior patterns are formed. Once these children can respond motorically in the presence of musical stimuli, continuation of responding may be possible by pairing motor activity with musical stimuli. This experiment investigated the effects of operant conditioning and music on the motor activity of profoundly retarded children in an effort to determine the therapeutic usefulness of music with such children.
Date: January 1968
Creator: Addison, Max R.

Strategic Planning and Strategy Implementation: A Study of Top Administration in Selected Institutions of Higher Education in Texas

Description: 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

A Study of the Drafting Curriculum in the Fort Worth Public High Schools, Fort Worth, Texas

Description: This is a study of the drafting curriculum in the Fort Worth public high schools, Fort Worth, Texas.The specific purposes or the study were as follows: 1. To review and compare the courses and content of the drafting curriculums listed in the bulletins of the TEA and the Fort Worth Public Schools. 2. To study drafting scheduling procedures in each of the Fort Worth public high schools. 3. To study the courses and contents of the drafting curriculums offered in each of the Fort Worth public high schools. 4. To determine if there are variations from school to school in curriculum content of the drafting courses in each of the Fort Worth public high schools. 5. To offer suggestions and recommendations for improving the program, if weaknesses were evident, when the program was evaluated by acceptable criteria (12, 13, and 14).
Date: December 1973
Creator: Agee, David W.

A Study of Academic, Personal, Social and Financial Satisfactions of International Students at North Texas State University

Description: 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

Satisfaction with College Among Selected Groups of International Students

Description: 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

Analysis and Evaluation of the Role of Public Relations in Leasing Dallas Petroleum Center

Description: The problem in this study was to discover if the public relations program of the Dallas Petroleum Center was useful in leasing and if the program played a significant role in a leasing increase. The study was carried out by describing the development of the building project, by analyzing the planning and execution of the public relations program, by testing the program's effectiveness, and by drawing conclusions about the program and by making recommendations for this specific program and for office leasing in general. The effectiveness of the program was tested by questionnaires and interviews. The public relations program proved to be an effective tool in leasing office space; and a similar program was recommended for other buildings.
Date: May 1977
Creator: Ainsworth, Doris Stewart

The Organizational Improvement of the Village Creek Wastewater Treatment Plant in Fort Worth, Texas, 1969-1988: a Case Study of Forces Responsible for Organizational Change

Description: This study documents that external and internal forces were causes of change at VCWTP. External forces caused. Fort Worth to reorganize and introduce new management at VCWTP after 1982. These improvements led to VCWTP being selected best managed wastewater treatment plant in the nation by EPA in 1988. This study first analyzes external and internal forces responsible for changes at VCWTP. A history of plant operations also is reviewed. Personnel interviews were conducted of perceptions of employees. Finally, statistics obtained of the plant operation from 1969 to 1988 are compared with personal interviews. Five forces effect change at VCWTP; population, regulatory requirements, political conflicts, an organizational and managerial factors. Turnaround occurred as external and internal corrections were made.
Date: May 1993
Creator: Akidi, Innocent O. (Innocent Okechuknu)

The Use of Selected Aptitude Test Scores for Predicting Achievement in Modern Foreign Languages at North Texas State University

Description: 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.

A Comparison of Staff Organization and Employment Opportunities of Dallas Business-Papers and Company Publications

Description: This study compares the staff structures and the employment opportunities of Dallas area businesspapers and company publications. The study has five main purposes. They are (1) to examine the staff organization of various Dallas area business publications, (2) to examine the job roles and responsibilities within each type of publication, (3) to determine the education requirements for employees, (4) to determine the experience requirements for employees, and (5) to evaluate business and industrial journalism as a career choice for journalism graduates in the Dallas area.
Date: August 1973
Creator: Akins, Linda G.

An Investigation of Factors Deterring Participation in Continuing Professional Education

Description: 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 the variables of age, marital status, and position held were tested. In comparing the ranking of the six factors deterring participation in continuing professional education, a Spearman rank correlation coefficient revealed respondents in both states rank the six factors in the same order. The findings were congruent with earlier studies of barriers to participation in continuing education among professionals. The researcher recommended a study which would include a larger number of social workers and a longitudinal study to measure changes in barriers to participation in continuing professional education.
Date: December 1985
Creator: Akintade, Aribigbola

Degradation of Phenolic Acids by Azotobacter Species Isolated from Sorghum Fields

Description: Sorghum plants excrete phenolic acids which reduce subsequent crop yields. These acids accumulate in field soil by combining with soil and clay particles to form stable complexes which remain until degraded by bacterial metabolism. The amount of phenolic acids in soil samples were obtained by gas chromatography measurements, while Azotobacter populations were obtained by plate counts in 40 sorghum field samples from Denton County, Texas. One can conclude that increasing the Azotobacter population in the soil increased the degradation rate of phenolic acids proportionally. It is proposed that seed inoculation will introduce selected strains of Azotobacter into the soil. The presence of Azotobacter should increase crop size in subsequent plantings.
Date: August 1989
Creator: Al-Hadhrami, Mohamed N. (Mohamed Nasser)

Fear of Failure and Fear of Success: The Relationship of Achievement Motives to the Motor Performance of Males and Females

Description: The study was designed to determine the relationship between the psychological constructs of "fear of failure (FOF)" and "fear of success (FOS)" and motor performance in badminton. Forty-three males and fifty-one females in beginning badminton classes were administered the FOF and FOS scales, followed by three independent skills tests and a round-robin singles tournament. Conclusions were that FOF and FOS are two separate performance motives; FOF appears to be the dominant motive for females; both FOF and FOS are related to motor performance in face-to-face competition, while only FOS is related to performance in isolated skills.
Date: December 1982
Creator: Albury, Kevin W.

Teacher Implementation of a Pretreatment Assessment Procedure in a Public Middle School

Description: 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 other more formal approaches to assessing student behavior.
Date: May 1999
Creator: Alcala, Angelo L. (Angelo Lee)

Food Habits and Dietary Overlap of Four Species of Rodents from the Mesquite Plains of Texas

Description: The coexistence of Dipodomys ordii and Perognathus hispidus with Peromyscus maniculatus and Reithrodontomys montanus was studied in a grassland association of central Texas. The food habits of these species were compared with information from habitat vegetation analysis in an effort to determine food selectivity and the amount and importance of niche overlap and competition among these rodents.
Date: May 1972
Creator: Alcoze, Thomas M.