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Evaluation of the Chlorophyll/Fluorescence Sensor of the YSI Multiprobe: Comparison to an Acetone Extraction Procedure

Description: The purpose of this study was to examine the suitability of the YSI model 6600 Environmental Monitoring System (multiprobe) for long term deployment at a site in Lewisville Lake, Texas. Specifically, agreement between a laboratory extraction procedure and the multiprobe chlorophyll/fluorescence readings was examined. Preliminary studies involved determining the best method for disrupting algal cells prior to analysis and examining the precision and linearity of the acetone extraction procedure. Cell disruption by mortar and pestle grinding was preferable to bath sonication. Comparison of the chlorophyll/fluorescence readings from the multiprobe and the extraction procedure indicated that they were significantly correlated but temperature dependent.
Date: May 2001
Creator: Lambert, Patricia

An Evaluation of the Coleman High School, Coleman, Texas

Description: The problem in this study is to evaluate the Coleman High School of Coleman, Texas. Areas evaluated are: pupil population and the school community, curriculum and course of study, pupil activity program, library service, guidance service, instruction, outcomes of the educational program, the school staff, the school plant, and school administration.
Date: 1942
Creator: Farmer, James Lee

Evaluation of the Contraception Education Program in the Denton County Chapter of the Planned Parenthood Association of Northeast Texas

Description: The problem of the investigation was to determine the knowledge gain and the attitude change in females attending a contraception education program conducted by the Denton County Chapter of the Planned Parenthood Association of Northeast Texas. The sample population consisted of 75 females attending a Planned Parenthood contraception education program. A pre-test, post-test, and delayed test format was utilized in the study. The study concluded that the contraception education program did not significantly increase contraception knowledge of females attending Planned Parenthood. The investigation also concluded that the program did not significantly change the contraception attitudes of females in the investigation. However, there was a significant contraception knowledge gain one month following initial program exposure.
Date: August 1975
Creator: Newberry, Kris

An Evaluation of the Contributions of the "Wichita Falls Times" in the Development and Progress of Wichita Falls, Texas, from 1907 to 1976

Description: The purpose of this study was (1) to trace the contributions of the newspaper to the civic improvement and economic growth of Wichita Falls; (2) to trace the contributions of the publishers; and (3) to trace the development of the Wichita Falls Times from 1907, when it began as a daily, to 1976, when it sold to Harte-Hanks Communications Inc.
Date: May 1979
Creator: Zajac, Patricia

An Evaluation of the Creative Art Activities of the First Four Grades of the Bowie Elementary Schools, Bowie, Texas

Description: The purpose of this study is to evaluate the creative arts program of the first four grades in the Bowie Public Schools to determine the extent to which it meets, or fails to meet, criteria developed for a creative arts program in a democratic form of education.
Date: August 1953
Creator: Dickey, Ruby Callaway

An Evaluation of the Denton County Safety Education Program in Denton, Texas

Description: The purpose of this study was to assess the effectiveness of the Denton County Safety Education Program. Subjects were 117 driving-while-intoxicated offenders who completed this alcohol reeducation program between June 1975 to June 1976. Questionnaires were used as evaluative measures. Data were analyzed in three steps: 1) two two-way ANOVAs with one repeated measure; 2) two Pearson product moment correlations; and 3) a Fisher's Z test. Conclusions of the investigation were that (1) both problem and non-problem drinkers benefited from the program; (2) change of attitude was an important factor in reducing recidivism; and (3) the program was successful in meeting its goals as a means of influencing drinking and driving behavior.
Date: December 1978
Creator: Rayburn, Susan L.

Evaluation of the Developmental Effects and Bioaccumulation Potential of Triclosan and Triclocarban Using the South African Clawed Frog, Xenopus Laevis

Description: Triclosan (TCS) and triclocarban (TCC) are antimicrobials found in U.S. surface waters. This dissertation assessed the effects of TCS and TCC on early development and investigated their potential to bioaccumulate using Xenopus laevis as a model. The effects of TCS on metamorphosis were also investigated. For 0-week tadpoles, LC50 values for TCS and TCC were 0.87 mg/L and 4.22 mg/L, respectively, and both compounds caused a significant stunting of growth. For 4-week tadpoles, the LC50 values for TCS and TCC were 0.22 mg/L and 0.066 mg/L; and for 8-week tadpoles, the LC50 values were 0.46 mg/L and 0.13 mg/L. Both compounds accumulated in Xenopus. For TCS, wet weight bioaccumulation factors (BAFs) for 0-, 4- and 8-week old tadpoles were 23.6x, 1350x and 143x, respectively. Lipid weight BAFs were 83.5x, 19792x and 8548x. For TCC, wet weight BAFs for 0-, 4- and 8-week old tadpoles were 23.4x, 1156x and 1310x. Lipid weight BAFs were 101x, 8639x and 20942x. For the time-to-metamorphosis study, TCS showed an increase in weight and snout-vent length in all treatments. Exposed tadpoles metamorphosed approximately 10 days sooner than control tadpoles. For the hind limb study, although there was no difference in weight, snout-vent length, or hind limb length, the highest treatment was more developed compared to the control. There were no differences in tail resorption rates between the treatments and controls. At relevant concentrations, neither TCS nor TCC were lethal to Xenopus prior to metamorphosis. Exposure to relatively high doses of both compounds resulted in stunted growth, which would most likely not be evident at lower concentrations. TCS and TCC accumulated in Xenopus, indicating that the compound has the potential to bioaccumulate through trophic levels. Although TCS may increase the rate of metamorphosis in terms of developmental stage, it did not disrupt thyroid function and metamorphosis in ...
Date: December 2010
Creator: King, Marie Kumsher

Evaluation of the Easter Seals North Texas Autism Treatment Program: Progress in Meeting Program Mission

Description: Applied behavior analysis (ABA) remains at the forefront of effective interventions for children with autism. In some cases, the high cost of treatment and other environmental factors limit families from accessing services. The Easter Seals North Texas (ESNT) Autism Treatment Program (ATP) was created to reach high risk, underserved families in the North Texas area by providing early intensive behavioral intervention (EIBI) services to children with autism. This evaluation was conducted to analyze the success of meeting the ESNT ATP program mission to provide culturally responsive ABA to children. The evaluation includes the design of assessments, the analysis of the assessment data, and a set of recommendations to maintain and increase program accessibility.
Date: May 2010
Creator: Pritchett, Malika Naomi

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

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% in a series of experiments, with an average reduction of 50%. The economical benefits are reduced collection costs and profit from the sale of pupae as a feedstuff, which could amount to as much as $1,200 per month under optimal conditions. Social acceptance is possible, but requires education of the public, specifically targeting school children. Potential impediments to social acceptance include historical attitudes and ignorance, which could be overcome through effective educational efforts.
Date: August 2004
Creator: Barry, Tami

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

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.
Date: 1942
Creator: Martin, Lois Baker

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

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.
Date: 1940
Creator: Corse, Chancy H.

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

Description: The purpose of the evaluation was to test effectiveness of a visual, visual-motor, and auditory perceptual skills training program devised by Dr. Jerome Rosner, and to confirm or deny application of this training to improved classroom skills. Subjects were 38 kindergarten children, 20 in the Contrast Group, and 18 in the Experimental Group. Both groups received the same training in the basic curriculum of readiness skills. The Experimental Group also received training in the Visual Analysis and Auditory Analysis Skills programs. Pretests and posttests were administered, tabulated, and analyzed. Differences in raw score means were sufficient to indicate more than a chance factor and all tests demonstrated a plus factor for children in the Experimental Group.
Date: May 1977
Creator: Cook, Grace H.

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

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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Date: August 2003
Creator: Du, Yunfei

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

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.
Date: August 1970
Creator: Harvey, Rowland C.