HPLC has been used and can quickly determine several ions simultaneously. The method of determination described for transition metals [Cr(III), Fe(III), Ni(II), Co(II), Cu(II), Zn(II), Cd(II), Mn(II)] and [Ca(II), Pb(II)] using HPLC with UV-VIS detection is better than the PAR complexation method commonly used. The effects of both eluent pH and detector wavelength were investigated. Results from using different pHs and wavelengths, optional analytical conditions for the separation of [Ni(II), Co(II), Cu(II)], [Cr(III), Fe(III), Ca(II), Ni(II), Cu(II)], and [Ca(II), Zn(II), Pb(II)] in one injection, respectively, are described. The influence of adding different concentrations of Na_2EDTA solvent to the sample is shown. Detection limits, linear range, and the comparisons between this study and a post-column PAR method are given.

The Sisterhood of Dark Sanctuary is an original play about two sisters who are struggling to find their own identities away from their mother. The sisters have developed a functioning relationship wherein they alternate between the dominant partner and the passive partner, often assuming the roles of a mother and a child. This relationship has become so secure and stable for the sisters that they cannot develop healthy adult identities apart from each other.

The presence of an alpha-adrenoceptor--mediated coronary vasoconstrictor reflex during acute systemic hypoxia was examined in thirteen chloralose-anesthetized dogs. Local vasodilator effects were avoided by perfusing the left common coronary artery (LCC) with normoxic blood, while the dogs were ventilated with 5% 02-95% N2 . Left ventricular afterload was held constant and positive cardiac inotropic responses and beta two-adrenoceptor-mediated coronary vasodilation were blocked by propranolol. Parasympatheticmediated bradycardia and coronary vasodilation were blocked with atropine. Systemic hypoxia decreased LCC flow to normoxic myocardium by 19.4+2.6 %. Although myocardial oxygen extraction increased 9.7+2.9 %, myocardial oxygen consumption decreased 16.5+2.6 %. Intracoronary prazosin prevented the reflex vasoconstriction during repeated hypoxia.

The purpose of this play is to dramatize the fable of a city mouse and her cousin in the country, and the differences in their lifestyles. Through visits to each other's respective homes, the mice discover that there is more to life than what their own environment has to offer.

Research on child sexual abuse has been largely retrospective and anecdotal in nature, focusing on broad self-report measures of adjustment rather than on more explicit measures of psychopathology. Although there is general agreement that there are harmful effects, there is a lack of consistent empirical evidence. More specific measures, control groups, and larger Ns are needed to gain a clearer understanding. The present study examined Rorschach responses of sexually abused female children as associated with abuse characteristics. Rorschach responses of the sexually abused group were also compared with responses of female clinic controls. None of the a priori hypotheses predicting differences between the groups were supported.

This thesis treats Daniel Read's music analytically to establish style characteristics. Read's fuging tunes are examined for metric placement and structural occurrence of dissonance, and dissonance as text painting. Read's comments on dissonance are extracted from his tunebook introductions. A historical chapter includes the English origins of the fuging tune and its American heyday. The creative life of Daniel Read is discussed. This thesis contributes to knowledge of Read's role in the development of the New England Psalmody idiom. Specifically, this work illustrates the importance of understanding and analyzing Read's use of dissonance as a style determinant, showing that Read's dissonance treatment is an immediate and central characteristic of his compositional practice.

Six bis(silyl)acetylenes with the following varied silicon substituents were prepared: I (Me, Me); II (H, H); III (Cl, H); IV (Cl, Cl); V (OMe, H); VI (OMe, OMe). While I and II may be prepared by the reaction of dilithio- or bis(bromomagnesium)-acetylide with appropriate chlorosilane, similar reactions designed to give III - VI give oligomers, YMe_2Si(C≡C-SiMe_2)_nY, VII, Y = Cl, OMe, as the major products indicating that the acetylenic functionality on silicon activates the chlorosilane toward nucleophilic substitution. Compounds III and IV were prepared by free radical chlorination of II. Methanolysis of III and IV gave quantitative yields of V and VI, respectively. In the presence of mineral acid, VI readily cyclized to give high yields of the cyclic siloxane octamethyl-4,9-dioxa-3,5,8,10-tetrasila-cyclodeca-1,6-diyne, VIII, and the analogous triyne, IX. It was determined that V and VI could be prepared directly from II in high yield by methanolysis with palladium catalyst. Vaska's complex also accomplished the conversion. I attempted to prepare bis(ethoxydimethylsilyl)acetylene by using of Wilkinson 's catalyst for hydrosilylation with acetaldehyde. The principal product of this reaction was 1-(dimethylsilyl)-3,5,5-trimethyl-4-oxa-3-silacyclopent-1-ene, XI.

The purpose of this study was to investigate the saleability judgements of retail store buyers of women's and men's wear. A sample of 81 women's and men's wear buyers, representing two specialty stores and one mass merchandiser, was sent questionnaires. Principal Components Factor Analysis with Varimax Rotation was used to reduce the number of product, vendor and information source variables to eight factors. Three significant differences existed between the women's wear and men's wear buyers, verifying that not all retail buyers are alike. Results will benefit educators in preparing students to become more effective buyers, retail management can incorporate this same information into a buyer training program and apparel manufacturers can use the study in planning product strategies to retailers.

The purpose of this study was to examine the criterion-related validity of the sit and reach test as a measure of hamstring and low back flexibility in adult males and females. Subjects were 52 males and 52 females, 20 to 45 years of age. Hamstring flexibility was measured using a goniometer. Spinal flexibility was measured using a tape measure and an inclinometer. The sit and reach test was performed according to the AAHPERD Health Related Fitness Test Manual. Data were analyzed using correlations and appropriate descriptive statistics. Conclusions of the investigation were: 1) in adult males 20 to 45, the sit and reach test is a valid measure of hamstring flexibility but has questionable validity as a measure of low back flexibility, 2) in adult females 20 to 45, the sit and reach test is a moderately valid measure of hamstring flexibility and is not a valid measure of low back flexibility.

In CBA/NJ mice, splenic natural killer (NK) cell activity varies with stages of estrous. Susceptibility of ICR mice to intravaginal inoculation of herpes simplex virus type 2 (HSV-2) decreases with age. Susceptibility of female ICR and CBA/NJ mice to HSV-2 inoculated intravaginally and intraperitoneally was examined during the estrous cycle. In cycling ICR mice, greatest susceptibility to intravaginal inoculation was observed during diestrous and the least during metestrous. CBA/NJ mice were most susceptible to intravaginal inoculation of HSV-2 during diestrous. ICR mice were ovariectomized to mimic diestrous and found to be highly susceptible to intravaginal inoculation at all virus doses. No difference in susceptibility among phases of the estrous cycle was seen following intraperitoneal inoculation.

The eleven studies which comprise the Consortium for Longitudinal Studies were described in order to determine long-term effects of preschool education on disadvantaged children. Research methods and results of the studies were evaluated and compared. An historical overview details the sociopolitical milieu from the time the eleven studies began in the 1960s to the present. Theories which impacted the preschool movement in the 1960s were also discussed, particularly those which concern the development of intelligence, the importance of early education and environmental impact on the development of intelligence. Demographic data were used to describe disadvantaged children's needs for quality early intervention programs. The results of the eleven Consortium studies indicate positive long-term effects for disadvantaged children enrolled in quality preschool programs.

The purpose of this study was to determine whether maternal employment contributed to the general inadequacy of the adolescent's evening meal, and to examine the attitudes of adolescents regarding the mother's role in evening meal preparation. A questionnaire was administered to 1180 high school students in a suburban area of Dallas-Ft.Worth in May, 1987. The hypotheses were tested using Chi square, Pearson product moment correlation, and Anova. Results indicated that maternal employment affects adolescent evening meals in the number of meals offered per week, fully prepared by mother, and eaten away from home. The amount of adolescent participation in meal preparation was higher for the employed group. Attitudes are different between the sexes and those with employed and unemployed mothers.

A variable temperature ^13 C and ^199 Hg NMR study has been conducted for diphenyl-, bis(o-tolyl)-, bis(m-tolyl)-, and bis(2, 6-xylyl)mercury in dimethyl sulfoxide and 1,1,2,2 tetrachloroethane; ^13 C T1 relaxation times are reported as a function of temperature. Barriers to rotation of the aryl rings are obtained. Chemical shifts and couplings in CDCl_3 are given for bis(p-tolyl)-, bis(2, 5-xylyl)-, bis(mesityl)-,phenyl(o-tolyl)-, phenyl(m-tolyl)mercury, and the compounds listed above. The steric interactions of these aryl mercury compounds are discussed.

The present study explored whether musicians could (1) differentiate among the timbres of bass tubas of a single design, but constructed of different materials, (2) determine differences within certain ranges and articulations, and (3) possess different perceptual abilities depending on previous experience in low brass performance. Findings indicated that (1) tubas made to the same specifications and constructed of the same material differed as much as those of made to the same specifications, constructed of different materials; 2) significant differences in perceptibility which occurred among tubas were inconsistent across ranges and articulations, and differed due to phrase type and the specific tuba on which the phrase was played; 3) low brass players did not differ from other auditors in their perception of timbral differences.

This thesis considers Jane Austen's reception in America from 1800 to 1900 and concludes that her novels were not generally recognized for the first half of the century. In that period, she and her family adversely affected her fame by seeking her obscurity. From mid century to the publication of J.E. Austen-Leigh's Memoir in 1870, appreciation of Austen grew, partly due to the decline of romanticism, and partly due to the focusing of critical theory for fiction, which caused her novels to be valued more highly. From 1870 to 1900 Austen's novels gained popularity. The critics were divided as to those who admired her art, and those who found her novels to be dull.

Sodek's Gold is a novel based on individuals the writer has known in the Caribbean who have been placed in fictitious circumstances. Included are social issues, conditions, and dialects found there. The main character, David Sodek, is an Englishman working in the Caribbean who discovers an ancient coin and becomes obsessed with finding more. Sodek's search is impeded by the strongarm Mostyn, but with the help of his friend Elbert he recovers an underwater cache of golden treasure. Elbert is killed. Sodek avenges Elbert's death but ultimately relinquishes the gold and himself to the sea. The theme of the work involves Sodek's obsessive personality as seen in his increasingly pedantic and destructive search, and in his unrealistic belief that money buys freedom. Included between chapters are vignettes comparing the characters and nature, and foreshadowing following events.

The objective of this investigation was to examine the changes in the nucleotide pools of Azotobacter vinelandii during the growth cycle. Endogenous ribonucleotides were extracted from A. vinelandii using trichloroacetic acid (TCA; 12% w/v). The 5' mono-, di- and triphosphates of adenine, guanine, uracil and cytosine were separated and quantified by anion-exchange high performance liquid chromatography. Results indicated that the adenylate energy charge of A. vinelandii paralleled the growth rate during exponential phase and that it declined rapidly as the stationary phase was reached. In addition, the amount of each nucleotide in A. vinelandii tended to increase in the logarithmic phase and decrease in the stationary phase in a similar manner to the energy charge.

Empirical investigation of the tenets of Object Relations Theory is recent. This study of the theoretical convergence between Object Relations Theory and Personal Construct Theory brought a new direction to the empirical investigation. It was hypothesized that individuals who displayed a well developed level of object relations, as measured by Object Relations Theory, would also display a highly adaptive blend of cognitive complexity and ordination, as described by Personal Construct Theory, and vice versa. A correlational analysis of personality measures on 136 college students approached but did not attain statistical significance. Results indicated no significant theoretical convergence between Object Relations Theory and Personal Construct Theory. Further research is warranted only if greater variability in sample age, life experience, and psychopathology is assured.

The problem of this study was to determine if employee child care difficulties were related to absenteeism. A case study was conducted among sixty-three employees at a north Dallas bank using a survey questionnaire. Descriptive statistics were used to analyze child care difficulties. A majority of employees experienced difficulty when co-workers had child care problems. A majority of the parent employees had difficulty finding sick or emergency/temporary child care, affording child care, and working overtime due to child care. The majority of parents had child care related absences and work interruptions and thirty-nine percent of them considered quitting their jobs due to child care problems. This study implied the need for employer-supported child care options for the bank employees.

In response to a NCAA ruling, North Texas State University (NTSU) launched a comprehensive drug testing, drug education and counseling program for its athletes effective August 1, 1986. This study assessed and compared NTSU student-athlete and student alcohol and drug use. In addition, attitudes toward a variety of sports-related drug topics, including mandatory athletic drug testing, were assessed and compared. The study revealed significant differences between student-athletes and students in drug use of the following: steroids, marijuana, cocaine, psychedelics, and amphetamines. Both groups favored mandatory drug testing of athletes.

In examining Dostoevsky's treatment of faith in The Brothers Karamazov, critics often focus solely on "The Grand Inquisitor." Dostoevsky, however, refutes the Inquisitor's views through the movement of the three Karamazov brothers toward faith. The three Karamazov brothers, as a collective personality, represent the fundamental needs of man and the corresponding aspects of faith, each brother being an individual study of the necessity of integrating soul, heart and mind into faith. The crises that each brother faces force each one to develop a fuller dimension of faith. The final effect of integrating the soul, heart and mind in faith is active love.

This study investigated the impact of victim provocativeness and rape history upon male and female subjects' perceptions of attribution of blame toward the rape victim. One hundred and forty-four subjects (a) read one of 12 fictional case reports of a rape incident from a sexual abuse center which systematically varied level of victim provocativeness and rape history and (b) completed a nine-item Rape Questionnaire (RQ). Data were analyzed by a 2 (subject's sex) x 3 (level of provocativeness) x 2 (rape history) analysis of variance on the Rape Questionnaire total score. An ancillary multiple analysis of variance (MANOVA) was also performed on the nine Rape Questionnaire items to check for potential masking of individual item differences from the Rape Questionnaire score. In addition, the data were reanalyzed in the 2 x 3 x 2 design by substituting high versus low scorers on the Attitudes Towards Women Scale (AWS) based upon median splits of the AWS for subject sex. The 2 (subject sex) x 3 (provocativeness) x 2 (rape history) MANOVA resulted in a sex by provocativeness interaction with males, relative to females, attributing more blame as the victim's level of provocativeness increased. In addition, significant differences emerged for provocativeness, rape …

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Chronic toxicity of zinc to Pimephales promelas was estimated by conducting replicate static and static-renewal short-term embryo-larval tests and static-renewal seven-day larval tests. The two test methods were highly reproducible. Daily renewal of test solutions had little effect on the toxicity of zinc, however, the stage of development at which exposure was initiated affected the sensitivity of the toxic endpoints measured. The most sensitive and reproducible endpoint in the embryo-larval tests was survival of viable (non-deformed) larvae and in the seven-day larval test was growth of the larvae, which was slightly more sensitive than the embryo-larval test endpoint. The estimated MATC of 0.18 and 0.15 mg/L mean total and mean soluble zinc, respectively, compared well with published results. Because of its advantages and similar sensitivity, the short-term embryo-larval test was recommended for estimating chronic toxicity.