Concern over sediment toxicity has increased the need for toxicity test information with organisms that inhabit sediments. Oligochaetes are exposed to toxicants through feeding and direct body contact with aquatic sediments. Chronic testing with oligochaetes has historically focused on tubificids with test lengths of one year or more to encompass several generations. Most naidid oligochaetes have generation times of three to seven days and could provide chronic information in a matter of weeks. The cosmopolitan distributed naidid, Pristina leidyi, was evaluated for use as a toxicity test organism. Results of research conducted includes culture methods, effects of temperature on reproduction, growth rates in a reference sediment, acute toxicity tests, and chronic toxicity tests.

This thesis provides evidence that a particular "topos" from the high Baroque's exalted style, the so-called chaconne bass, made a profound impact on a considerable body of Mozart's compositions from the last ten years of his life in Vienna. After identifying the topos in the first chapter, a detailed study in chapter two shows how Mozart's faith in the extraordinary emotional power carried by this topos was enough for him to work it into all of the completed keyboard fantasias. Chapter three illustrates that an understanding of the chaconne bass and its unmistakable association with the fantasia style can shed new light on three of Mozart's most enigmatic compositions from his final period, K. 465, K. 491, and K. 527.

Parental socialization values are compared over sixty years by using data from the Denton Parent Project collected in 1989 and from similar questions asked of parents in Middletowri in 1924 and 1978, The objectives of the study were as follows: how have parental socialization values changed through time since the 1920s; has the impact of parental social class status on parental socialization values decreased over time; compare Alwin's study on obedience and autonomy to see how trend has changed from 1978 Middletown to 1989 Denton; and, finally, look at certain family structure variables to determine their influence. Today's parents emphasize social acceptance and a sense of social responsibility in child training practice. Social class still has an impact on parental socialization values but not as great as expected.

Intracellular levels of NAD are of renewed interest in clinical and basic science research due to the new discovery of enzymes which utilize NAD as a substrate. Microtiter assays for the determination of NAD, NADP and protein were developed as modifications of previously published methods. The resulting assays are simple, cost effective and sensitive. An improved method of isolating lymphocytes was also developed. The resultant procedure requires one hour and removes greater than 99.9% of the platelets. Lymphocyte pools were stabilized with the addition of ADP-ribosyltransferase inhibitors and a modified extraction procedure. These studies have led to the development of a method for evaluation of NAD in human lymphocytes that is sensitive, selective and suitable for automation.

This thesis examines some selective cases of morphophonemic alternation in Mandarin Chinese. It presents analyses of the function -of the retroflex suffix -r and describes several conditions for tone sandhi. The suffix -r functions not simply as a noun formative. Some of the suffixed forms have consistently different meanings from the roots on which they are based. The suffix -r also plays a role in poetry as a time-filler to make each line of a poem fulfill the requirements of the strict number of characters and rhyme. This thesis also explains what causes the tone pattern of words such as xiaojie and jiejie to be pronounced differently. These tonal changes are found to be related to the way in which a word is formed. Compounding, reduplication and suffixation differ with respect to how they effect tone sandhi. Tone alternations in actual speech are explored to determine how tone sandhi produces each pronunciation and how grammatical structure and other factors are relevant.

This study corroborates theories that ordinary representation of narrative time as a linear series of "nows" hides the true constitution of time and that it is advantageous for us as readers and critics to consider alternatives to progressive reality and linear discourse in order to comprehend many of Ambrose Bierce's stories, for his discourse is fluid and metonymic and defies explication within traditional western language concepts. The Hebraic theory of intertextuality encourages limitless considerations in textual analysis since language is perceived as a creative and dynamic force, not merely mimetic. As such it offers a means for reconsideration of fundamental theories concerning the natures of language and time in Bierce's stories.

Reaction of the tetracobalt cluster Co4(CO)10(t 4-PPh)2 with 1,2-bis(dimethylphosphino)ethane (dmpe) affords the bis-substituted cluster Co4(CO)8(dmpe)(t 4-PPh)2. The bidentate dmpe ligand is shown to bind to the cluster in a chelating fashion by IR, NMR, and X-ray diffractions analyses. The fluxional nature of the ancillary carbonyl groups has been studied by variable temperature 13C NMR measurements which reveal two distinct carbonyl scrambling pathways. The stability of the phosphine-ligated cluster has been examined using in situ Cylindrical Internal Reflection (CIR) Spectroscopy. The effect of the dmpe ligand on the cluster polyhedron will be discussed with respect to the observed crystallographic and spectroscopic results

A study was conducted to investigate factors associated with the perceived future self-efficacy in adolescents with spina bifida. Thirteen adolescents with spina bifida and their parents were surveyed. Seventeen adolescents without an identified disability and their parents were also surveyed. The Questionnaire of Future Adult Activities (QFAA) and the Health Attribution Test (HAT) were administered. Parent responses were compared to those of adolescents and adolescent responses were compared between groups. There was no overall correlation between parent and adolescent responses. Differences were found between responses of adolescents with spina bifida and adolescents without an identified disability. Limited correlations were found between the QFAA and the HAT.

This thesis investigates how the interior of the Morton H. Meyerson Symphony Center of Dallas accommodates the three groups which use the space: the patron, the musicians, and the administration. Following the Draft Brief of 1981 prepared by the Dallas Symphony Association's Concert Hall Building Committee, each area is discussed as to what was actually built and what concerns were met. The primary data were the symphony center and interviews with I.M. Pei, architect; Russell Johnson, acoustician of the concert hall; Charles Young, associate of Pei, Cobb, Freed & Associates, interior architect of the concert hall; Carolyn Miller, Trisha Wilson & Associates, designer of the Green Room, Richard Trimble, designer of the musicians' areas, and Joe Pereira, designer of the Administrative area.

Although most Americans view Sam Houston as a military leader and practical politician with little understanding of intellectual issues, he actually possessed a complex moral and political philosophy which he elaborated and demonstrated during a fifty-year public career. He based his philosophy on a mixture of Christian idealism and pragmatic realism, with duty, honor, and strict morality serving to restrain his love of reality, reason, and physical pleasures. The dual nature of his moral beliefs extended into his politics, which mixed Jeffersonian republicanism, individual rights, and limited government, with Jacksonian democracy, the needs of society, and the will of the people. Throughout most of his career he kept those conflicting sets of ideals successfully in balance, with only the turmoil of the 1850s leading him into extreme positions.

The purpose of the present study was to discern a symptom pattern for environmentally ill patients and provide evidence of the uniqueness of the resultant pattern to this population. Patients' environmental exposure was confirmed by the presence of toxins in the blood serum. All patients were administered psychological and physical symptom checklists, the Clinical Analysis Questionnaire, and a standardized intermediate neuropsychological examination. Results indicate a response pattern of symptoms including fatigue, low energy, weakness, poor concentration, poor memory, poor comprehension, headaches, aches and pains, clumsiness, sinus discomfort, mucus, eye problems, restlessness, and present performance inferior to prior level of functioning. Presence of these symptoms, as well as the uniqueness of this symptom pattern was supported by comparisons of the patient and standardization groups on the two standardized tests.

Basic criteria for determination of Attention Deficit Hyperactivity Disorder (ADHD) include hyperactivity, impulsivity, and distractibility. Four scales of the Personality Inventory for Children have been found to be useful in the diagnosis of ADHD. Impulsivity and distractibility can affect scores on the Hand Movements, Number Recall, Word Order, Spatial Memory, Arithmetic, Riddles, and Matrix Analogies subtests of the Kaufman Assessment Battery for Children. Subjects were 100 children, aged six through 13 who were referred for psychological assessment. The purpose of this study was to determine if there was a correlation between scores on the four scales of the PIC and the designated subtest scores on the KABC. Four correlations were significant, but of low magnitude.

This thesis examines the critical factors leading to the 1948 decision by the United States government to extend recognition to the newly declared State of Israel. In the first of five chapters the literature on the recognition of Israel is discussed. Chapter II presents the theoretical foundation of the thesis by tracing the development of Charles Kegley's decision regime framework. Also discussed is the applicability of bureaucratic structure theory and K. J. Holsti's hierarchy of objectives. Chapters III and IV present the empirical history of this case, each closing with a chapter summary. The final chapter demonstrates the relevance and validity of the theoretical framework to the case and closes with a call for further research into the processes of foreign policy decision-making.

Participating in this study were 251 decorator consultants. The decorator consultant position is a direct sales position. The primary objective of this study was to demonstrate that a relationship existed between decorators' selection test scores and their job performance. The SRA Verbal Form, the EAS Numerical Ability Test, the EAS Space Visualization Test, and the Sales Attitude Checklist were evaluated as potential selection tests. Behavioral criteria and managerial ratings were used to assess job performance. Correlational analyses revealed that all the tests but the SRA Verbal Form were significantly correlated with two or more criteria.

The problem of the study was to examine the effects of Texas legislated basic skills testing as the effects relate to teachers, administrators, and local school districts. Questionnaires consisting of thirty questions were mailed to a stratified random sample of 120 educators from all twenty Regional Service Centers in Texas. Both teachers and administrators were included in the sample. Factual information and personal opinions were solicited to determine how educators and local school districts have been responding to the testing reform directives. Responses of educational groups and demographic types were compared using the chi-square test and presented in descriptive and tabular form.. Nine findings, nine conclusions, and six recommendations resulted from the study.

The purpose of this study was to compare the performance of children on the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI-R) with their performance on the Stanford-Binet Intelligence Scale: Fourth Edition (SB:FE). One hundred and four children between 3 and 7 years of age were administered both tests. A moderate correlation was found between the WPPSI-R Full Scale IQ and the SB:FE Composite Score with a Pearson product-moment correlation of .46. This correlation suggests that the two tests are not interchangeable measures of children's intelligence. They may measure different, equally important aspects of intelligence. As both tests used are relatively new, the current findings should be considered one step in the accumulation of knowledge about the usefulness of the WPPSI-R.

The Trinity River passes through the Dallas-Fort Worth metroplex receiving point and non-point source contaminant loadings. Lepomis spp. were collected at twelve sampling locations in the Trinity River in August 1987 and September 1988 and analyzed for organochlorine pesticides and heavy metals. Results from the study were compared to existing U.S. FDA action and tolerance levels, LC50s, and historical data. Various longitudinal trends and some concentration patterns were observed. Continual study of pesticide and metal body burdens in fish allow testing for trends, and thereby, lead to a better understanding of the distribution of contaminants in the Trinity River.

Six hundred sixty-six students were queried at the University of North Texas. The appropriate use of nonverbal behaviors of international and U.S. American TAs was surveyed. An eleven item questionnaire (Teacher Nonverbal Measure) was utilized. These questions were tested by an ANOVA. Data indicated that international TAs are less likely to use appropriate nonverbal behaviors than U.S. American TAs. Thus, it is possible to assume that international TAs are more likely to be perceived as using inappropriate nonverbal behaviors than U.S. American TAs. Also, communication competence was investigated. The Communication Skill Rating Scale was utilized and tested by ANOVA. Results indicate that international TAs are viewed as significantly less competent than U.S. American TAs.

Requiem for Netted Fish is an intermedia composition for sixteen-voice SATB choir, harp, six dancers, slide projections, and lighting. The text, taken from the poetry of Anna Akhmatova and Carolyn Forche, presents a universal, womanly rage against human repression and destruction. The poetry finds aural interpretation in sound, and visual interpretation in movement and lighting. Poetic inspiration contributes to the integration of elements in the work, as does the impulse-exchange method of coordinating mediums, which allows the dancers control of the timing of events. The resultant interdependent relationships necessary for performance contribute to the integration of the composition. The duration of this intermedia work is approximately fifteen minutes.

Previously, Whipp et. al. (J. Appl. Physiol.: Respirat. Environ. Exerc. Physiol. 50(1):217-221, 1981) demonstrated the feasibility of determining four parameters of aerobic function, identified as maximum oxygen uptake (μVO_2), VO_2 at anaerobic threshold (θan), the time constant for oxygen uptake kinetics (rVO_2) and work efficiency (η), using a short duration ramped bicycle ergometer exercise test. Because of the importance of being able to measure these parameters on a variety of measurement instruments a short duration ramping treadmill protocol has been developed. The ability of this protocol to determine the four aerobic parameters has been validated against conventional methods. The results of this investigation indicate that μVO_2, θan, rVO_2 and, η may be obtained from a single, short-duration ramping treadmill test.

The purpose of this study was to examine the effects of event order on a cycling(C)/running(R) or R/C biathlon. Eight experienced male biathlete/triathletes with a mean age of 24.9 + 4.6 yr formed the sample of the study. Results show no significant interaction effects on oxygen consumption peak, oxygen consumption during steady-state, ventilation, and heart rate when C/R or R/C are performed at 70% oxygen consumption peak for subsequent R and C respectively. These results seem to indicate that the biathlete/triathlete is efficient in both C and R to the extent that event order does not significantly interact with metabolic response in submaximal cycling and running.

The effects of single injections and daily oral administration of ethanol on plasma levels of ACTH, beta endorphin, and corticosterone in response to cold stress were examined. The long-term experimental animals were given 0.25 ml of 28% ethanol or water orally once a day, five days a week, for fourteen months. Plasma levels of ACTH, beta endorphin, and corticosterone were lower in alcohol-treated rats as compared with water-treated rats when exposed to cold stress. The effects of a single injection of ethanol significantly elevated plasma levels of all three hormones. Mortality in sham-treated males was higher than ethanol-treated.

This study assessed how Constructivist theory accounts for verbal dominance. Conversations of rotating dyads were tape recorded, then coded for measures of dominance. Subjects completed a trait dominance scale and a constructivist personality test. Interpersonal rankings of dominance were found to be more consistent with observed behavior than trait dominance scores. Extreme trait dominance scores were associated with a constructivist measure indicating maladjustment. Dyads identified as more resistant to change were found to use fewer verbal control strategies; male/male dyads were characterized by direct, functional interactions. Dyads that were highly comfortable with one another utilized fewer verbal control methods. Lastly, interactions in which participants reported unfamiliar self-experiencing utilized higher levels of verbal control. Implications for group processing, assessment of dominance and sex differences are discussed.

Quantitative studies dominate early adolescence research, a field which also lacks an understanding of communication behaviors between early adolescents. This study uses the qualitative methods of participant observation and informal interviews to observe conversations between girls in a junior high lunch room. Friendship characteristics and group socialization are discussed as they emerged from the field data. First, friendship hierarchies (best friend, close friend, and friend) may be adult-imposed structures. Hierarchies are not prominent in the minds of friends as they relate to each other in daily conversation. Second, friendship groups serve to socialize early adolescent girls.