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Evaluation of the Use of the Bivalves Ischadium recurvum Rafinesque, 1820 and Corbicula fluminea Muller, 1774 as Biological Indicators of Relative Water Quality in Terms of Growth and Upper Temperature Tolerance

Description: Growth of mussels under laboratory conditions was examined under various food regimes in different water types and temperatures. Growth was less than would be useful as an indicator and comparisons with field exposures were of minimal value. The effects of organophosphates on bivalves were examined via toxicity tests, tissue concentration, and by controlling exposure through the use of physical constraints. Upper temperature tolerance of both bivalve species was examined with respect to different acclimation temperatures and organophosphate exposures. Deviations from control exposures occurred at some temperatures. Copper effectively lowered the mean heat coma temperatures of C. fluminea at some concentrations, however, chlorine exposures did not alter heat coma temperature.
Date: December 1997
Creator: Hemming, Jon Michael

An Evaluation of the Uses Made of the Radio in the Seventh Grade of the Schools of Hill County

Description: It is the purpose of this study to make an investigation of the uses made of the radio in the seventh grade in the schools in Hill County, in an endeavor to make available to administrators and teachers the possibilities of radio as an educational medium, and also to suggest additional techniques of utilization.
Date: 1942
Creator: Kirkbride, Martha Frances Cargile

An Evaluation of the Views of Black Journalists Working at Black Newspapers Concerning the Effects of the Civil Rights Movement on Their Black Newspapers from 1960 to 1985

Description: This study was designed to determine whether black journalists who work at black newspapers in Texas felt the Civil Rights movement had affected their industry. Although black newspapers lost an exclusive market for talent that now must be shared with majority-owned newspapers, this report concludes that the operation of black newspapers virtually was unaffected by the Civil Rights movement. It is recommended that this research serve as a starting point for a continuing examination of black newspapers. It would be particularly beneficial if more information could be gathered from people who have worked at now-defunct black newspapers.
Date: August 1985
Creator: Parson, Rita L. B.

An Evaluation of the Work Habits and Personal Traits of a Group of Graduates of the Commercial Department of Sunset High School, Dallas, Texas

Description: The problem in this study has a three-fold purpose: to evaluate the work performance, as ranked by employers and teachers, of a group of employed graduates of business education of the sunset high School of Dallas, Texas; to evaluate the personality traits demonstrated by the employees on the job in relation to the personality traits demonstrated in school; and to analyze these evaluations to secure suggestions for improving the course of study, including the amount of emphasis which should be placed on the various phases of the instructional program.
Date: August 1947
Creator: Hudson, Frances Merle

An Evaluation of Therapeutic Recreation Services Provided for Psychiatric Clients in the State of Texas

Description: The problem with which this study is concerned is the delineation of current practices in therapeutic recreation in psychiatric treatment centers in Texas, The programs of the forty-two hospitals responding to the survey questionnaire were evaluated in terms of the National Therapeutic Recreation Society's "Standards for Therapeutic Recreation in Psychiatric Facilities." It was determined that, while the use of recreation in psychiatric rehabilitation is widespread, many programs are not administratively independent., A close association between recreation and occupational therapy was found. Extensive recreation facilities and activities were reported. Use of community resources was widespread, but follow-up and leisure counseling services were rare. Most personnel had no recreation training. The evaluation showed limited compliance with the standards.
Date: December 1977
Creator: Steinfeld, Janis L.

Evaluation of Transfer of Technical Training: A Prototype

Description: The degree of transfer of technical training to workplace behavior was evaluated using a Solomon Four-Group experimental design. Additionally, all groups received retrospective pretests. Subjects were 103 technicians in an electronics company. Supervisors rated technicians on behaviorally anchored rating scales which were developed and labeled as behavior description scales for simplicity. Analysis of variance revealed no effect for training nor pretest. A training-pretest interaction effect was revealed for one dimension (Communication with Support Groups). Analysis of covariance revealed main effects for pretesting for two dimensions (Problem Solving and Communication with Supervisor) and a pretest-training interaction-for one dimension (Problem Solving). Except for one dimension, t tests revealed no significant differences between traditional pretests and retrospective pretests, thus negating a hypothesized response shift bias.
Date: August 1993
Creator: Stubbs, Carol A. (Carol Ann)

An Evaluation of Twenty Modern Elementary Arithmetic Textbooks

Description: The purpose of this study is threefold: (1) to review briefly important studies and recommendations relating to curriculum construction in elementary arithmetic; (2) to develop a set of criteria for judging elementary arithmetic textbooks; and (3) to apply the criteria to a selected number of elementary arithmetic textbooks.
Date: 1950
Creator: Murphree, Bessie

An Evaluation of Two Methods of Teaching Social Studies in Junior High School

Description: The objective of this study is to evaluate the effectiveness of two methods of teaching the social studies to junior high school pupils. An attempt has been made to ascertain the relative progress in the studying efficiency of a group of children in social studies taught by the basic-study-skills plan, as compared to that of a group of children taught by the assign-study-recite-test plan so commonly employed.
Date: 1950
Creator: King, Oma Allie

An evaluation of two performance pay systems on the productivity of employees in a certified public accounting firm.

Description: This study examined the effects of switching from an incentive pay system solely based on productivity to a scorecard-based incentive pay system. Performance of staff and senior accountants was analyzed across three departments for a two-year baseline and a three-year intervention period. Results showed that percent of charge hour goal remained high during the study. Once the scorecard-based incentive system was implemented, performance on the other line items increased or remained at or above goal levels. Incentive payouts were generally higher under the second incentive plan than under the first for top performers. Possible explanations for data trends, weaknesses of the measures within the scorecard, measure/line item alternatives and implications for future research are also discussed.
Date: December 2005
Creator: Shelton, Bryan

Evaluation of virulence in wild type and pyrimidine auxotrophs of Pseudomonas aeruginosa using the eukaryotic model system Caenorhabditis elegans.

Description: The human opportunistic pathogen, Pseudomonas aeruginosa PAO1, has been shown to kill the nematode Caenorhabditis elegans. C. elegans has been a valuable model for the study of bacterial pathogenesis, and has reinforced the notion that common virulence and host defense mechanisms exist. Recently, the pyrimidine pathway was shown to regulate virulence levels. Therefore, mutations in the pyrimidine pathway of PAO1 showed decrease virulence in the nematode. When starving the nematode, bacterial resistance was also shown to increase. It was hypothesized that starvation induced the DAF pathway, which regulates the transcription of genes involved with the antibacterial defense mechanism. Further research will be conducted to test this theory by performing RNAi experiments for the genes functioning in the antibacterial defense mechanism.
Access: This item is restricted to the UNT Community Members at a UNT Libraries Location.
Date: August 2004
Creator: Anvari, Sara

Evaluation of Vocational Guidance Practices and Techniques in Secondary Schools as Practiced by Graduates of North Texas State Teachers College

Description: The purpose of this study was to compare practices in the secondary schools in which graduates of North Texas State Teachers College are employed with standards and techiques concerning vocational guidance which have been set up by writers in the field.
Date: August 1938
Creator: Robinson, George Ezekiel

The Evaluation of Youth Workers in Institutions for Juvenile Delinquents

Description: The purpose of the study was to determine trends between selected factors in the study. Trends between thirty position qualifications and proficiency with children, proficiency with staff, education, age, sex, and length of service were examined, trends between the type of institution, areas of duty, and general proficiency were also examined.
Date: January 1962
Creator: Walther, Richard Ernest

Evaluation of Zinc Toxicity Using Neuronal Networks on Microelectrode Arrays: Response Quantification and Entry Pathway Analysis

Description: Murine neuronal networks, derived from embryonic frontal cortex (FC) tissue grown on microelectrode arrays, were used to investigate zinc toxicity at concentrations ranging from 20 to 2000 mM total zinc acetate added to the culture medium. Continual multi-channel recording of spontaneous action potential generation allowed a quantitative analysis of the temporal evolution of network spike activity generation at specific zinc acetate concentrations. Cultures responded with immediate concentration-dependent excitation lasting from 5 to 50 min, consisting of increased spiking and enhanced, coordinated bursting. This was followed by irreversible activity decay. The time to 50% and 90% activity loss was concentration dependent, highly reproducible, and formed linear functions in log-log plots. Network activity loss generally preceded morphological changes. 20% cell swelling was correlated with 50% activity loss. Cultures pretreated with the GABAA receptor antagonists bicuculline (40 mM) and picrotoxin (1 mM) lacked the initial excitation phase. This suggests that zinc-induced excitation may be mediated by interfering with GABA inhibition. Partial network protection was achieved by stopping spontaneous activity with either tetrodotoxin (200 nM) or lidocaine (250 mM). However, recovery was not complete and slow deterioration of network activity continued over 6 hrs. Removal of zinc by early medium changes showed irreversible, catastrophic network failure to develop in a concentration-dependent time window between 50% and 90% activity loss. Investigation of entry routes suggested the L-type but not N-type calcium channels to be the main entry pathway for zinc. Data are presented implicating the chloride channel to be an additional entry route.
Date: August 2007
Creator: Parviz, Maryam

Evaluation Practices of Community College Faculty Development Programs

Description: The purpose of this quantitative study was to determine the current state of community college faculty development program evaluation and identify possible influences on evaluation practices. Data from 184 survey responses and the Integrated Postsecondary Education Data System (IPEDS) were analyzed to answer three research questions. Multiple regression was used to determine if a relationship existed between the dependent/outcome variable (evaluation utilization score) and the independent/predictor variable (accrediting agency affiliation: MSCHE, NEASC, NCA, NWCCU, SACS, and WASC) and/or control variables (institution locale, student FTE, expenses per student FTE, percent spent on instruction, and percent of full-time faculty). Results were not statistically significant, F (12, 163) = 1.176, p = .305. The mean evaluation scores were similar for all six accrediting agencies ranging from 60-69. The rural variable was statistically significant with p = .003 and alpha = .05, but it only accounted for 3.6% of the variance explained. Logistic regression was used to determine if a relationship existed between the dependent/outcome variable (use of evaluation) and the above-specified independent/predictor variable and/or control variables for six faculty development program activities. Results revealed that significant predictor variables for the use of evaluation vary based on the faculty development program activity. Statistically significant predictors were identified for two of the six activities. The percent spent on instruction variable was statistically significant for financial support for attending professional conferences (p = .02; alpha = .05). The NCA affiliation and student FTE variables were statistically significant for orientation for new faculty (p = .007; alpha = .05 and p = .027; alpha = .05 respectively). The analysis of the evaluation methods was conducted using descriptive statistics and frequencies. The most frequently used evaluation methods were questionnaire and verbal feedback. NCA was identified as having the greatest number of institutions using the most frequently used evaluation ...
Date: December 2014
Creator: Bunyard, Magen Lynn

Evaluation Techniques and Graph-Based Algorithms for Automatic Summarization and Keyphrase Extraction

Description: Automatic text summarization and keyphrase extraction are two interesting areas of research which extend along natural language processing and information retrieval. They have recently become very popular because of their wide applicability. Devising generic techniques for these tasks is challenging due to several issues. Yet we have a good number of intelligent systems performing the tasks. As different systems are designed with different perspectives, evaluating their performances with a generic strategy is crucial. It has also become immensely important to evaluate the performances with minimal human effort. In our work, we focus on designing a relativized scale for evaluating different algorithms. This is our major contribution which challenges the traditional approach of working with an absolute scale. We consider the impact of some of the environment variables (length of the document, references, and system-generated outputs) on the performance. Instead of defining some rigid lengths, we show how to adjust to their variations. We prove a mathematically sound baseline that should work for all kinds of documents. We emphasize automatically determining the syntactic well-formedness of the structures (sentences). We also propose defining an equivalence class for each unit (e.g. word) instead of the exact string matching strategy. We show an evaluation approach that considers the weighted relatedness of multiple references to adjust to the degree of disagreements between the gold standards. We publish the proposed approach as a free tool so that other systems can use it. We have also accumulated a dataset (scientific articles) with a reference summary and keyphrases for each document. Our approach is applicable not only for evaluating single-document based tasks but also for evaluating multiple-document based tasks. We have tested our evaluation method for three intrinsic tasks (taken from DUC 2004 conference), and in all three cases, it correlates positively with ROUGE. Based on our experiments ...
Date: August 2016
Creator: Hamid, Fahmida

An Evaluative Study of Physical Education Activity Programs for Boys in Selected Junior High Schools of Texas

Description: The problem undertaken in this study was to evaluate the activity phase of boys' physical education programs in selected junior high schools of Texas. As a result of visitation and observation in a number of public junior high schools in the capacity of supervising teacher for physical education majors, it appears that many physical education programs were little more than loosely supervised play periods. Apparently there was room for improvement of these programs but a method for making judgments and recommendations required some type of measuring device. However, an examination of several existing measuring techniques failed to reveal any one devoted to the junior high school level or one concerned primarily with the activity program. As a means of improving existing programs, it was concluded that some new form of evaluation must be designed.
Date: August 1958
Creator: Muse, James Milton

An evaluative study of the grasslands of the R.J. McMurry Ranch, Denton County, Texas

Description: It is the purpose of this problem to classify the four major pastures of the McMurry ranch using the discussed classification system. The definite measurable qualities characterizing each condition of the system are used extensively in this study. The problem is concerned also with the observation of results of misuse, the present practices that could result in further depletion of portions of the McMurry ranch, and procedures being employed at the present time aimed toward the restoration of these depleted portions.
Date: June 1951
Creator: Nolen, Bette Rudd

An Evaluative Study of the Physical Education Program for College Women in the Punjab of West Pakistan with Recommendations for Future Development

Description: The study was undertaken for the following purposes: 1. To make a study of the past and present Pakistan culture significant to physical education for college women in the Punjab. 2. To make a study of the present physical education program for women in colleges in the Punjab. 3. To evaluate the present women's physical education program for the college level in the Punjab of West Pakistan. 4. To make recommendations for future development of the physical education program for college women in the Punjab area of West Pakistan.
Date: August 1964
Creator: Kraft, Dorothy C.