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  Partner: UNT Libraries
 Language: English
 Collection: UNT Theses and Dissertations
Evaluation of the Economic, Social, and Biological Feasibility of Bioconverting Food Wastes with the Black Soldier Fly (Hermetia illucens)

Evaluation of the Economic, Social, and Biological Feasibility of Bioconverting Food Wastes with the Black Soldier Fly (Hermetia illucens)

Date: August 2004
Creator: Barry, Tami
Description: Food waste in the waste stream is becoming an important aspect of integrated waste management systems. Current efforts are composting and animal feeding. However, these food waste disposal practices rely on slow thermodynamic processes of composting or finding farmers with domestic animals capable of consuming the food wastes. Bioconversion, a potential alternative, is a waste management practice that converts food waste to insect larval biomass and organic residue. This project uses a native and common non-pest insect in Texas, the black soldier fly, which processes large quantities of food wastes, as well as animal wastes and sewage in its larval stage. The goal of this research is to facilitate the identification and development of the practical parameters of bioconversion methods at a large cafeteria. Three major factors were selected to evaluate the practicality of a bioconversion system: (1) the biological constraints on the species; (2) the economic costs and benefits for the local community; (3) the perception of and interaction between the public and management agencies with respect to the bioconversion process. Results indicate that bioconversion is feasible on all levels. Larvae tolerate and consume food waste as well as used cooking grease, reducing the overall waste volume by 30-70% ...
Contributing Partner: UNT Libraries
An Evaluation of the Educational Objectives of Grandview, Alvarado, and Surrounding Rural Schools

An Evaluation of the Educational Objectives of Grandview, Alvarado, and Surrounding Rural Schools

Date: 1942
Creator: Martin, Lois Baker
Description: The problem constituting the basis of this study is one having to do with an investigation of educational objectives. Specifically, it relates to an examination of teachers' objectives in a strictly limited area of Texas and a comparison of these objectives with those advanced by professional educators and published in literature dealing with educational practices and principles.
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An Evaluation of the Educational Qualifications and Functions of the Business Managers in the School Systems of Texas with a Scholastic Population of One Thousand or More

An Evaluation of the Educational Qualifications and Functions of the Business Managers in the School Systems of Texas with a Scholastic Population of One Thousand or More

Date: 1940
Creator: Corse, Chancy H.
Description: The purpose of this study is to examine the educational qualifications and functions of the business managers in the school systems of Texas with a scholastic population of one thousand or more. This study attempts to determine from the findings what the business managers' duties should be and the needed qualifications, educational and otherwise, for performing these duties.
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An Evaluation of the Effect of a Specific Perceptual Training Program on Classroom Skills in Kindergarten

An Evaluation of the Effect of a Specific Perceptual Training Program on Classroom Skills in Kindergarten

Date: May 1977
Creator: Cook, Grace H.
Description: None
Contributing Partner: UNT Libraries
An Evaluation of the Effect of Learning Styles and Computer Competency on Students' Satisfaction on Web-Based Distance Learning Environments

An Evaluation of the Effect of Learning Styles and Computer Competency on Students' Satisfaction on Web-Based Distance Learning Environments

Access: Use of this item is restricted to the UNT Community.
Date: August 2003
Creator: Du, Yunfei
Description: This study investigates the correlation between students' learning styles, computer competency and student satisfaction in Web-based distance learning. Three hundred and one graduate students participated in the current study during the Summer and Fall semesters of 2002 at the University of North Texas. Participants took the courses 100% online and came to the campus only once for software training. Computer competency and student satisfaction were measured using the Computer Skill and Use Assessment and the Student Satisfaction Survey questionnaires. Kolb's Learning Style Inventory measured students' learning styles. The study concludes that there is a significant difference among the different learning styles with respect to student satisfaction level when the subjects differ with regard to computer competency. For accommodating amd diverging styles, a higher level of computer competency results in a higher level of student satisfaction. But for converging and assimilating styles, a higher level of computer competency suggests a lower level of student satisfaction. A significant correlation was found between computer competency and student satisfaction level within Web-based courses for accommodating styles and no significant results were found in the other learning styles.
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An Evaluation of the Effect of Mobility Upon Achievement and Progress in the East Van Zandt School, Fort Worth, Texas

An Evaluation of the Effect of Mobility Upon Achievement and Progress in the East Van Zandt School, Fort Worth, Texas

Date: 1943
Creator: Huffaker, Dixie
Description: The problem of this study is to determine the extent of the mobility of pupil population in the East Van Zandt School, Fort Worth, Texas, and the relationship of this mobility to pupil achievement and progress.
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An Evaluation of the Effect of Participation in Certain Lunchroom Activities upon the Acceptance of Food by Elementary School Children

An Evaluation of the Effect of Participation in Certain Lunchroom Activities upon the Acceptance of Food by Elementary School Children

Date: 1949
Creator: Morrow, Annie Launa
Description: It is the purpose of this study to determine how the pupils' participation in certain lunchroom activities for a two-weeks period affected their acceptance of foods.
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An Evaluation of the Effectiveness of the Texas State Teacher's Association in Meeting the Welfare Needs of Public School Teachers in the Areas of Tenure and Retirement

An Evaluation of the Effectiveness of the Texas State Teacher's Association in Meeting the Welfare Needs of Public School Teachers in the Areas of Tenure and Retirement

Date: August 1970
Creator: Harvey, Rowland C.
Description: The primary purpose of this study is to review the actions of the Texas State Teacher's Association as an organization in support of the needs of Texas teachers for adequate tenure and retirement, and to evaluate their effectiveness in securing these needs.
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An Evaluation of the Effectiveness of the Undergraduate Music Education Curriculum at North Texas State University

An Evaluation of the Effectiveness of the Undergraduate Music Education Curriculum at North Texas State University

Date: May 1975
Creator: Bennett, R. Wayne
Description: None
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An Evaluation of the Effects of a Pay for Performance Plan on Productivity of Employees of a Professional Services Firm

An Evaluation of the Effects of a Pay for Performance Plan on Productivity of Employees of a Professional Services Firm

Date: December 2002
Creator: Porter, Melanie
Description: This study examined the effects of a productivity-indexed pay for performance plan in a professional services firm. The new plan was implemented after productivity decreased under an existing plan. Performance of staff and senior level accountants was analyzed across three departments under a three-year baseline and a two-year intervention period. Several measures of productivity indicated that the intervention was effective in improving production, especially for employees with full annual workloads. Percentage of salaries earned in incentives was comparable for both the baseline and intervention periods. Possible explanations for trends in the data, weaknesses in the plan, and implications for future research are also discussed.
Contributing Partner: UNT Libraries