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The Impact of a Telephone Warm Line on Latchkey Children

The Impact of a Telephone Warm Line on Latchkey Children

Date: December 1987
Creator: Padilla, Mary Lou
Description: A prevention-oriented telephone line intended as an intervention program for latchkey children was studied to determine its impact on the self-esteem, anxiety level, and in-school and at-home behavior of these children.
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Effects of Time Spent on Computer-Assisted Instruction on Attitudes of Sixth Grade Students Toward Computers

Effects of Time Spent on Computer-Assisted Instruction on Attitudes of Sixth Grade Students Toward Computers

Date: December 1987
Creator: Campbell, Penny Renae
Description: The purposes of this study were threefold: (1) to examine the effects of time spent on CAI on student attitudes, (2) to examine the effects of time spent on CAI among ability groups, and (3) to determine whether initial attitudes would be maintained throughout a school year, and if not, determine variables associated with an attitude shift.
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A Comparison of the Roles and Needs of Middle and Lower Class Thai Parents in Helping Their Children's Reading Development

A Comparison of the Roles and Needs of Middle and Lower Class Thai Parents in Helping Their Children's Reading Development

Date: May 1987
Creator: Nitaya Praphruitkit
Description: The problem of this study was a comparison of the roles and needs of middle and lower class Thai parents in helping their children's reading development. The sample was selected from the parents of the preprimary schools in Bangkok, Thailand, in the fall of 1986. A total of 366 parents, including 185 from middle class and 181 from lower class, participated in this study.
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A Behavioral Modification Analysis of the Effects of Multimedia First Aid Training on Injuries in an Industrial Setting

A Behavioral Modification Analysis of the Effects of Multimedia First Aid Training on Injuries in an Industrial Setting

Date: May 1987
Creator: Sturrock, James Lee
Description: Past research has shown a correlation between first-aid training and the reduction of injuries. This connection has been noted in off-the-job situations in addition to industrial studies. This project is an extension of those past findings with three notable differences: total population training was studied, as the intervention instead of just saturation treatment; attention was given to the effect that the half-life of training had upon injury reduction; and three randomly chosen small groups we're studied to determine short range effects. The theoretical bases from which the study hypothesis was developed originated in the Behavioral Science and Psychology literature. Discussions are developed around the mental structuring of accidental potential situations in the case of a person trained in first-aid principles. Behavior Modification was one of the principles of change that offered a.safer environment through first-aid training. Group contagion provided the setting for development of a safer place to work because of socialization to a "safe attitude." The intervention, American National Red Cross Standard Multimedia First-Aid Course, provided some of the mental developments toward modification of behavior. These were the modeling and rehearsal features of the course. A connection between group deviance and accident "proneness" led to a proposal that avoidance ...
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The Effects of Missing Data on Audit Inference and an Investigation into the Validity of Accounts Receivable Confirmations as Audit Evidence

The Effects of Missing Data on Audit Inference and an Investigation into the Validity of Accounts Receivable Confirmations as Audit Evidence

Date: August 1987
Creator: Caster, Paul, 1951-
Description: The objectives of the thesis research were twofold. One objective was to conduct an exploratory investigation of the underlying response mechanism to an auditor's request for confirmation of accounts receivable. The second objective was to investigate the validity of confirmation evidence. Validity was defined in terms of detection of errors.
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The Effects of Spouse Presence During Graded Exercise Testing on Psychological and Physiological Parameters in Cardiac Patients and Healthy Adults

The Effects of Spouse Presence During Graded Exercise Testing on Psychological and Physiological Parameters in Cardiac Patients and Healthy Adults

Date: August 1987
Creator: Baylor, Krissa A.
Description: The direct effect of spouse presence during graded exercise testing on anxiety and performance has not been previously delineated. Therefore, the purposes of this study were to (a) ascertain if spouse presence during graded exercise testing affects state anxiety or physiological performance variables, and (b) determine differences in psychological status between cardiac patients and healthy adults.
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Syntheses of Highly Strained Energetic Molecules and Development of New Synthetic Methodology

Syntheses of Highly Strained Energetic Molecules and Development of New Synthetic Methodology

Date: May 1987
Creator: Wu, An-hsiang
Description: The objective of this study was to synthesize new energetic, strained, saturated polycyclic compounds. For this purpose, new methodology has been developed, as follows: (i) Ketenes have been generated in situ via treatment of aldo-, keto- or alkenoic acid with either toluenesulfonyl chloride or 2-chloro-1-methylpyridfniurn iodide (Mulkaiyama's reagent). The reactive intermediates thereby generated have been found to undergo intramolecular [2+2] cycloaddition reactions in these systems.
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Studies of Enzyme Mechanism Using Isotopic Probes

Studies of Enzyme Mechanism Using Isotopic Probes

Date: August 1987
Creator: Chen, Cheau-Yun
Description: The isotope partitioning studies of the Ascaris suum NAD-malic enzyme reaction were examined with five transitory complexes including E:NAD, E:NAD:Mg, E:malate, E:Mg:malate, and E:NAD:malate. Three productive complexes, E:NAD, E:NAD:Mg, and E:Mg:malate, were obtained, suggesting a steady-state random mechanism. Data for trapping with E:14C-NAD indicate a rapid equilibrium addition of Mg2+ prior to the addition of malate. Trapping with 14C-malate could only be obtained from the E:Mg2+:14C-malate complex, while no trapping from E:14C-malate was obtained under feasible experimental conditions. Most likely, E:malate is non-productive, as has been suggested from the kinetic analysis. The experiment with E:NAD:malate could not be carried out due to the turnover of trace amounts of malate dehydrogenase in the pulse solution. The equations for the isotope partitioning studies varying two substrates in the chase solution in an ordered terreactant reaction were derived, allowing a determination of the relative rates of substrate dissociation to the catalytic reaction for each of the productive transitory complexes. NAD and malate are released from the central complex at an identical rate, equal to the catalytic rate.
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Physical, Chemical and Catalytic Properties of the Isozymes of Bovine Glucose Phosphate Isomerase

Physical, Chemical and Catalytic Properties of the Isozymes of Bovine Glucose Phosphate Isomerase

Date: August 1987
Creator: Cini, John Kenneth
Description: Glucose phosphate isomerase (GPI) occurs in different bovine tissues as multiple, catalytically active isozymes which can be resolved by polyacrylamide gel electrophoresis and isoelectric focusing. GPI from bovine heart was purified to homogeneity and each of the isozymes was resolved. Four of the five isozymes were characterized with regard to their physical, chemical and catalytic properties in order to establish their possible physiological significance and to ascertain their molecular basis. The isozymes exhibited identical native (118 Kd) and subunit (59 Kd) molecular weights but had different apparent pi values of 7.2, 7.0, 6.8 and 6.6. Structural analyses showed that the amino terminus was blocked and the carboxyl terminal sequence was -Glu-Ala-Ser-Gly for all four isozymes. The most basic isozyme was more stable than the more acidic isozymes (lower pi values) at pH extremes, at high ionic strength, in the presence of denaturants or upon exposure to proteases. Kinetic constants, such as turnover number, Km and Ki values, were identical for all isozymes. Identical amino acid composition and peptide mapping by chemical cleavage at methionine and cysteine residues of the isozymes suggest a postsynthetic modification rather then a genetic origin for the in vivo isozymes. When the most basic isozyme was ...
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An Empirical Investigation of the Factors Considered by the Tax Court in Determining Principal Purpose Under Internal Revenue Code Section 269

An Empirical Investigation of the Factors Considered by the Tax Court in Determining Principal Purpose Under Internal Revenue Code Section 269

Date: May 1987
Creator: Olson, William H. (William Halver)
Description: The purpose of this study was an empirical investigation of the factors considered by the United States Tax Court in determining whether the principal purpose for an acquisition was tax avoidance (or alternatively, given the totality of the surrounding circumstances, whether there was an overriding business purpose for the acquisition).
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A Comparison of Native and Non-Native English-Speaking Teaching Assistants

A Comparison of Native and Non-Native English-Speaking Teaching Assistants

Date: May 1987
Creator: Shirvani Shahenayati, Zahra
Description: The purposes of this study were to determine whether differences existed between the communication styles and teaching effectiveness, respectively, of native and non-native teaching fellows, as perceived by their undergraduate students. In addition, the study sought to determine whether a positive correlation existed between the final grades and the communication styles and teaching effectiveness, respectively, of native and non-native teaching fellows as perceived by their undergraduate students. In order to carry out the purposes of this study, six hypotheses were tested concerning the perception of native and non-native undergraduate students toward the communication style and teaching effectiveness of teaching fellows in North Texas State University.
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The Elements of Lesson Design, Elementary Public School Students' Mastery of Mathematics Objectives, Accrued Teaching Experience, and Teacher Inservice Training

The Elements of Lesson Design, Elementary Public School Students' Mastery of Mathematics Objectives, Accrued Teaching Experience, and Teacher Inservice Training

Date: May 1987
Creator: Smith, James A. (James Arthur) 1945-
Description: The purpose of this study was to investigate the relationship among the teachers' use of the individual elements of lesson design, students' mastery of mathematics objectives, the hours of inservice training completed by the teachers and the teachers' years of experience. The individual elements of lesson design are defined by Madeline Hunter and are anticipatory set, objective and purpose, input, modeling, checking for understanding, guided practice, and independent practice.
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Volume and Performance of Convertible Preferred Stocks Used in Mergers: 1968-1984

Volume and Performance of Convertible Preferred Stocks Used in Mergers: 1968-1984

Date: May 1987
Creator: Nijim, Monther M.
Description: This study provides information about convertible preferreds generally and, in particular, those used in financing mergers during the period 1968-1984. Specifically, the following topics are examined: (1) traditional corporate motives for the use of convertible preferreds as a financing means in mergers and acquisitions, (2) annual data about convertible preferreds' issuance by volume and purpose for the period 1968-1984, (3) average annual returns of merger-related convertible preferreds and average annual returns of common stock of the same companies for the period 1968-1980, (4) performance of convertible preferreds in relation to the market in general, and (5) the future of convertible preferreds as a financing instrument in merger activity.
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A Test of Allocational Market Efficiency in Takeovers Using Tobin's q Theory of Investment

A Test of Allocational Market Efficiency in Takeovers Using Tobin's q Theory of Investment

Date: May 1987
Creator: Kim, Keeho
Description: The primary purpose of the study was to investigate whether takeover markets are allocationally efficient using Tobin's q as the variable which summarizes the investment opportunities of firms. Chapter I presented the purposes, hypotheses, methodology, and limitations of the study. The two hypotheses proposed were as follows: Acquiring firms' q should be significantly higher than that of control firms, on average, and target firms' q should be significantly lower than that of control firms, on average. Chapter II presented the review of literature on takeovers and theory of investments. Chapter III presented the research design adopted to test the above hypotheses. The methodology to calculate q-values and methods to reduce the bias which may result from choice-based sampling were also given. A paired comparison t-test was employed to test the hypotheses. Sample firms were selected from the COMPUSTAT RESEARCH and COMPUSTAT INDUSTRIAL tape.
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Life History Biology of the Desert Nesting Seagull Larus modestus

Life History Biology of the Desert Nesting Seagull Larus modestus

Date: December 1987
Creator: Guerra Correa, Carlos Guillermo
Description: Gray gulls Larus modestus are unique among birds of northern Chile as the only species nesting in the interior Atacama Desert, and the only seagull nesting far (30 - 100 km) from surface water. During breeding-nesting (August - February) gray gulls congregate on the coast of northern Chile where they feed and initiate courtship. As early as August, breeding pairs commute daily to the inner desert to establish nesting territories, round-trip distances of 60-200 Km. During incubation (30 days) and brooding (7 days) adults alternate daily foraging flights to the coast. Afterwards, both adults forage daily for their chick(s) until fledging (ca. 60 days). Foraging flights and thermoregulatory costs during the period of maximal solar radiation, when ground temperatures may reach 61 C in the day and drop to 2 C at night, have selected for adaptations which minimize those costs: tolerance of hypothermia and hyperthermia; dark plumage; low egg-shell water vapor conductance; low standard metabolic rate; elaborate repertory of thermoregulatory behavior which allow adults to take advantage of microclimatic variations in the desert and minimize costs relative to a sympatric congenor, Larus belcheri scheduling foraging flights to take advantage of optimal atmospheric conditions and presence of forage fish (anchovies) ...
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Invertible Ideals and the Strong Two-Generator Property in Some Polynomial Subrings

Invertible Ideals and the Strong Two-Generator Property in Some Polynomial Subrings

Date: May 1987
Creator: Chapman, Scott T. (Scott Thomas)
Description: Let K be any field and Q be the rationals. Define K^1[X] = {f(X) e K[X]| the coefficient of X in f(X) is zero} and Q^1β[X] = {f(X) e Q[X]| the coefficent of β1(X) in the binomial expansion of f(X) is zero}, where {β1(X)}^∞ i=0 are the well-known binomial polynomials. In this work, I establish the following results: K^1[X] and Q^1β[X] are one-dimensional, Noetherian, non-Prüfer domains with the two-generator property on ideals. Using the unique factorization structure of the overrings K[X] and Q[X], the nonprincipal ideal structures of both rings are characterized, and from this characterization, necessary and sufficient conditions are found for a nonprincipal ideal to be invertible. The nonprincipal invertible ideals are then characterized in terms of the coefficients of the generators, and an explicit formula for the inverse of any proper invertible ideal is found. Finally, the class groups of both rings are shown to be torsion free abelian groups. Let n be any nonnegative integer. Results similar to the above are found in the generalizations of these two rings, K^n[X] and q^nβ[X], where the coefficients on the first n nonconstant basis elements are zero. For the domains K^1[X] and Q^1β[X], the property of strong two-generation is ...
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A Comparison of Some Continuity Corrections for the Chi-Squared Test in 3 x 3, 3 x 4, and 3 x 5 Tables

A Comparison of Some Continuity Corrections for the Chi-Squared Test in 3 x 3, 3 x 4, and 3 x 5 Tables

Date: May 1987
Creator: Mullen, Jerry D. (Jerry Davis)
Description: This study was designed to determine whether chis-quared based tests for independence give reliable estimates (as compared to the exact values provided by Fisher's exact probabilities test) of the probability of a relationship between the variables in 3 X 3, 3 X 4 , and 3 X 5 contingency tables when the sample size is 10, 20, or 30. In addition to the classical (uncorrected) chi-squared test, four methods for continuity correction were compared to Fisher's exact probabilities test. The four methods were Yates' correction, two corrections attributed to Cochran, and Mantel's correction. The study was modeled after a similar comparison conducted on 2 X 2 contingency tables and published by Michael Haber.
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The Influence of Jazz on French Solo Trombone Repertory

The Influence of Jazz on French Solo Trombone Repertory

Date: May 1987
Creator: Samball, Michael L. (Michael Loran)
Description: This lecture-recital investigated the lineage of French composers who were influenced by jazz during the first half of the twentieth century, with a focus on compositions from the solo trombone repertory. Historically, French composers, more than those of other European countries, showed an early affinity for the artistic merits of America's jazz. This predilection for the elements of jazz could be seen in the selected orchestral works of Les Six and the solo compositions of the Paris Conservatory composers. An examination of the skills of major jazz trombonists early in the twentieth century showed that idioms resulting from their unique abilities were gradually assimilated into orchestral and solo repertory. Orchestral works by Satie, Milhaud, and Ravel works showing jazz traits were investigated. Further, an expose of the solo trombone works emanating from the Paris Conservatory was presented. Although written documentation is limited, comparisons between early recorded jazz trombone solos and compositions for orchestral and solo trombone was established. These comparisons were made on the basis of idiomatic jazz elements such as high-tessitura ballad melodies, blue tonalities and harmonies, syncopated rhythms, and many of the aspects of style associated with improvisation. All major French solo trombone repertory to mid-century was surveyed ...
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The Association Between Testing Strategies and Performance in College Algebra, Attitude Towards Mathematics, and Attrition Rate

The Association Between Testing Strategies and Performance in College Algebra, Attitude Towards Mathematics, and Attrition Rate

Date: May 1987
Creator: Johnson, Charles W. (Charles Windle)
Description: The purposes of the study were: (1) to determine the effects of four testing strategies upon performance in college algebra, attitude towards mathematics, and attrition rate; (2) to determine the effects of two types of frequent testing upon performance, attitude, and attrition rate, (3) to determine the effects of different frequencies of in-class testing upon performance, attitude, and attrition rate; and (4) to draw conclusions which might help in selecting testing methods for college algebra classes.
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The Relationships Among English Oral Communication Apprehension, Social Interest, and Locus of Control of Far Eastern Students

The Relationships Among English Oral Communication Apprehension, Social Interest, and Locus of Control of Far Eastern Students

Date: May 1987
Creator: Thira Praphruitkit
Description: This study determined the relationships among English oral communication apprehension, social interest, and locus of control of Far Eastern students, and examined whether differences exist in these variables, compared to gender, age, academic classification, major field of study, employment status, and length of study in the United States. Four instruments, including a demographic questionnaire, the Adapted Personal Report of Communication Apprehension-24 (AFRCA-24), the Social Interest Scale (SIS), and the Rotter's Internal-External (I-E) Scale, were used to collect data from the sample of 240 Far Eastern students enrolled at North Texas State University in the fall semester of 1986.
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Studies on Hog Plasma Lecithin:cholesterol Acyltransferase: Isolation and Characterization of the Enzyme

Studies on Hog Plasma Lecithin:cholesterol Acyltransferase: Isolation and Characterization of the Enzyme

Date: May 1987
Creator: Park, Yong Bok
Description: Lecithin:cholesterol acyltransferase (LCAT) was isolated from hog plasma and basic physicochemical properties and functionally important regions were investigated. Approximately one milligram of the enzyme was purified to apparent homogeneity with approximately a 20,000-fold increase in specific activity. In the plasma, hog LCAT was found to associate with high-density lipoproteins (HDL) probably through hydrophobic interactions with apolipoprotein A-I. HDL was the preferred lipoprotein substrate of the enzyme as its macromolecular substrate. The enzyme was found to contain 4 free sulfhydryl groups; at least one of these appeared to be essential for catalytic activity. The enzyme had a tendency to aggregate at high concentrations. More than half of the tryptophan and none of the tyrosine residues of the enzyme were shown to be exposed to the aqueous environment based on fluorescence and absorbance studies, respectively.
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Prediction of Bankruptcy Using Financial Ratios, Information Measures, National Economic Data and Texas Economic Data

Prediction of Bankruptcy Using Financial Ratios, Information Measures, National Economic Data and Texas Economic Data

Date: December 1987
Creator: Moore, Ronald K. (Ronald Kenneth)
Description: The main purpose of this study is to develop a bankruptcy prediction model for the small business firm. Data was collected from the Dallas Small Business Administration (SBA), making this study specific to its decision makers. Existing research has produced models which predominately use financial ratios and information measures either independently or combined, and a few research models have used economic trends. This study varies from past studies in that it includes regional economic variables from the states of Texas. A sample of three-year data for 138 firms included fifteen bankrupt firms. This proportion of bankrupt/nonbankrupt firms approximates the proportion of repayed/defaulted loans in the SBA. Stepwise regression, set at the .15 level of significance, reduced a total of fifty-three variables to nine. These nine variables were then used to test twelve predictive models. All twelve models tested improved the SBA repayment rate and only two of the twelve would have caused the SBA to deny loans to applicants who eventually repaid. The study determined the model that included financial ratios, information measures, and Texas economic variables as best. It was also demonstrated that some of the variables used in this model could be eliminated without decreasing the predictive power ...
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Profile Development of Commenters Versus Non-Commenters on International Marketing Questionnaires

Profile Development of Commenters Versus Non-Commenters on International Marketing Questionnaires

Date: May 1987
Creator: Knauber, Ines
Description: The objectives of this dissertation were to: (1) discover whether commenters and non-commenters on an international marketing questionnaire differ based on sociodemographic, nationality, and personality characteristics; (2) determine whether commenters with greater life satisfaction are more likely to provide positive comments; (3) determine whether commenters differ in response styles due to their national background; and (4) discover whether commenters differ (based on sociodemo-graphic, nationality, and personality characteristics) in their propensity to comment on the design rather than on other questionnaire issues. An exploratory design was used to satisfy these objectives.
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John F. Walvoord at Dallas Theological Seminary

John F. Walvoord at Dallas Theological Seminary

Date: May 1987
Creator: Mink, Timothy G. (Timothy Gale)
Description: This study gives a historical analysis of the life and career of John F. Walvoord. He has served Dallas Theological Seminary for over fifty years in various capacities. The process of gathering information included a review of literature, a review of the institutional records of the Seminary, and a systematic search of the Archives, providing a chronological history of personal correspondence from the Office of the President from 1924 through 1954. An interviewing process concluded the study and served as the means of evaluation and review.
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