In this study, the relationship between maximal aerobic capacity (VO₂max) and left ventricular function was examined in two distinct age groups. A young group (20 - 30 years of age) and an elderly group (over 60 years of age) were compared. Left ventricular function was examined over wide variations in preload accomplished by 5º head-down tilt (TILT) for ninety minutes and lower body negative pressure (LBNP) to -40 mm Hg. with two-dimensional echocardiography. A greater response to an increase in preload (TILT) was related to high VO₂max levels in the young subjects but not in the elderly groups of subjects, suggesting that lower VO₂max levels of the elderly population affected the mechanism of response to the increased levels of preload. Additionally, in the elderly, greater reductions in ventricular volume reflected increased peripheral pooling due to decreased venous tone and/or increased venous compliance during LBNP and were related to increased VO₂max. In the young, VO₂max does not appear to affect the response to reduced preload.

Electrophoretic variation at twenty gene loci, patterns of behavioral thermoregulation, and genotype-specific malate dehydrogenase kinetics were investigated among populations of the red shiner, Notropis lutrensis, and the blacktail shiner, N. venustus, collected from thermally altered and thermally unaltered portions of their ranges. Genic variation was found to be high among red shiners and low among blacktail shiners. The behavioral response of the blacktail shiner to temperature was fixed among the populations sampled, whereas the response of the red shiner was mutable. Finally, blacktail shiners have incorporated into their genome an Mdh-B allele which functions well at low temperatures; red shiners, displaying high levels of Mdh-B polymorphism, maintain a more complex set of allozymes which function well over a wide range of environmental temperatures. These data are consistent with reported ecotypic distributions of the species in Texas waters; i.e., blacktail shiners occur in cool, thermally static habitats, and red shiners are tolerant of wide temperature ranges.

This paper provides a historical overview of the creation of the Concerto in E-flat Major for alto saxophone and string orchestra, Op. 109, by Alexander Glazunov, performs a structural and melodic analysis of the piece, and makes suggestions for the application of the findings.

The problem investigated in this study was whether students who received computer-assisted reading instruction would display positive attitudes toward reading six or more months after the instruction was completed. A Likert attitude scale was administered to thirteen pre-adolescent and adolescent subjects to assess their attitudes toward reading six or more months after they had received computer-assisted instruction (CAI). In addition, a questionnaire was administered to the subjects' parents to determine their perception of the subjects' attitudes toward reading. Data obtained from the Likert scale indicated that the subjects' attitudes toward reading were neutral. An analysis of responses to the parent questionnaire revealed that the students' attitudes toward school-related reading were positive as a result of CAI. This study concluded that CAI had no apparent positive impact on the subjects' attitudes toward recreational reading.

Sun Yat-sen used six propaganda techniques in the United States to help overthrow the Ching Dynasty in 1911: (a) individual propaganda to gain supporters through personal contact and individual persuasion; (b) propaganda of deed to solicit donations and to mobilize his supporters for military actions; (c) travel propaganda to broaden the base of revolutionary support; (d) newspaper propaganda to publicize and explain his revolutionary program; (e) debate propaganda to refute antirevolutionary criticism through speeches and pamphlets; and (f) missionary propaganda to seek sympathy and support from American missionaries and Christians.

This paper describes a new technique for analyzing fire debris using nuclear magnetic resonance (NMR) spectroscopy. Petroleum distillates, which are commonly used accelerants, were weathered, burned, and steamdistilled. These, as well as virgin samples of the accelerants, were analyzed by gas chromatography and nuclear magnetic resonance spectroscopy. In addition, solvent studies and detectibility limit studies were conducted. The use of NMR is described as a valuable adjunct to the existing methods of analysis.

This investigation dealt with the relationships between three main variables: (1) a camp director's prior experience with handicapped individuals and in the field of recreation; (2) a camp director's attitudes toward handicapped persons and their integration into regular camp settings; and (3) a camp director's perception of barriers to integration. The study was carried out via a mail-out questionnaire to 149 Texas camp directors. A return rate of 51% was achieved (66 returned surveys). Questionnaires were scored, and the data were punched on computer cards for analysis. The analysis indicated high reliability of the attitude and barrier scales. Results of the correlational analyses indicated a significant relationship (p = .0001) between a camp director's attitudes and his/her perception of barriers to integration.

Thesis providing "a chronological account of the years 1929-1933 in the Baytown area [... which] centers on the social attitudes toward poverty, business, labor and welfare of the Baytown area during the Great Depression" (p. vii).

The purpose of this study was to identify and describe the convictions about choral conducting is held and applied by Caro Carapetyan which may have contributed to his superior choral work. The primary source of information was a series of personal interviews with Carapetyan. The report was organized into five sections. The first part supplied background material. Subjects covered in the report include philosophy, the relationship between conductor and singers the conductor's knowledge of music history and literature, rehearsal planning, conducting technique the selection of singers, choral tone, blend and balance, diction, intonation, rhythm, and dynamics. Each of the chapters in Parts II, III and IV includes a summary and some comparisons with other choral music sources. The fifth part is a summary of the findings, conclusions, and recommendations. Recommendations for choral conductors and future researchers are included.

The election of a coalition of socialists and communists in 1970 and three years later, the assumption of a military government have led to much controversy around the world. This study attempts to analyze the economic conditions prevailing in Chile from 1970 to 1981. It examines the gradual deterioration of the nation's economy under the Unidad Popular government and the recovery that has taken place with the Junta Militar de Gobierno. The implementation of a market system in 1973 has been effective in bringing the nation out of economic chaos. The balance of payments is under control, inflation has been reduced, and since 1977 the nation's GNP has had an average annual growth of 7.7 per cent.

This study sought to determine the demographics of the managing editors of the 111 religious magazines listed in the 1981 edition of Writer's Market and the similarity of those magazines' editorial practices to editorial practices described in magazine textbooks. The sixty-four managing editors who answered the questionnaire tended to be college-educated, to say their chief motivation for working on a religious magazine was serving God and man and to be satisfied with their work. Twenty-five per cent of the managing editors in the study had undergraduate majors or master's degrees in journalism. The magazines' self-reported editorial practices in such areas as copy handling, proofreading, layout and design were similar to those described in magazine textbooks.

I constructed ceramic/mixed media instruments, recorded rhythmic music composed for and played on my instruments, and prepared a slide presentation portraying my daily rituals a studio artist. I describe in this paper the process involved in creating this environment and give an interpretation of the work by answering the following questions. 1. What were the rituals that were essential to the creation of my work? 2. In what ways did the use of the different visual and audio media work together to create a unified environment? 3. In what ways was the total experience of the different media a more direct and fulfilling expression of my goals as an artist, or are these goals better fulfilled when working in one media?

A new rapid computer assisted micro-titer plate interferon assay system was developed and characterized for use in high capacity clinical and research applications. The biological aspect of the assay was a modification of the assay methods of Finter, Armstrong and McManus. It was an application of spectrophotometric quantification of the reduction of viral cytopathic effect (CPE) as reflected by neutral red dye uptake by viable cells. A computer program was developed for the extrapolation of raw data to reference interferon units.

Subjects were 34 computer programmers employed in a major computerized tax processing company. Scores in the Computer Programmer Aptitude Battery (CPAB) and ratings of each programmer's job performance by his immediate supervisor were obtained. The purpose of the study was to validate a selection test. The relationship between the aptitude battery and performance evaluations was examined to evaluate the test's ability in predicting programming performance. Statistical treatment of data included Pearson product-moment correlations and a multiple linear regression analysis. The total test scores and several of the subtests were found to be significantly correlated with performance.

Bluegill were exposed to 3 and 30 pg/L lindane and 20 and 200 pg/L naphthalene to determine uptake rate constants, K1 depuration rate constants, K2, and bioconcentration factors, BCF. Correlations were determined between lipid normalized and non-lipid normalized BCFs, and between observed Kl, K2 and BCFs and predicted values. The K1 values for both chemicals and concentrations were similar. The K2 values were different (1.04 day~1, 0.46 day 1). Naphthalene was more rapid. BCFs for lindane (315) and naphthalene (98) were different. Lipid normalized BCFs for naphthalene were more variable than non-lipid normalized BCFs. The reverse was observed for lindane BCFs. Predicted K1, K2 , and BCFs were in agreement with observed values.

Empirical findings on Behaviorally Anchored Rating Scales (BARS) have been mixed, despite early researchers' claims that BARS were superior to trait ratings and in reliability and resistance to leniency, central tendency, and halo. The study presented compared a BARS format to an independently derived trait scale as measures of secretarial and clerical performance. Though the BARS showed slightly inflated mean ratings, the instruments showed nearly identical variability. Neither demonstrated sufficient resistance to halo. Thus, despite their intuitive appeal and the rigors involved in format development, it did not appear in this instance that BARS were an efficient and psychometrically superior alternative to the traditional trait rating format.

The purposes of this study were to develop an instrument to measure knowledge of leisure opportunities, and determine the reliability of the instrument. Subjects included 292 orthopedically impaired, nine to fourteen year old children. A multiple-choice format is used. The content is based on four domains. These are entertainment, games, sports, and arts and crafts. The domains are subcategorized into who, where, what, when, and cost of activities. The Kuder-Richardson formula 20 showed a reliability coefficient of .81. The Pearson, point biserial correlation was used to determine item-test correlations. Correlations below .20 were revised. Items with a difficulty level of 70 percent and above were also revised. The results indicated that the instrument had been successfully developed.

The study described the development of a standardized, normed, content-valid machine transcription test which could be used to evaluate the ability of secretarial applicants to type a mailable copy of a business letter from a dictated tape recording. The test was based on a thorough job analysis and was pretested using a pilot study with job incumbents to confirm its feasibility. Normative data were developed from 50 job applicants. Interrater reliability was statistically significant (r = .85, p <..05). The test was adopted for use at the headquarters office of a major oil and gas producing company.

In 1950-51, for the bicentennial of the death of J. S. Bach, Dmitri Shostakovich wrote his collection of Twenty-four Preludes and Fugues, Op. 87. This thesis is a study of the fugal technique of Shostakovich as observed in Op. 87, in light of the fugal style of Bach as observed in The Well-Tempered Clavier, Volume One. Individual analyses of each of the twenty-four Shostakovich pieces yield the conclusion that Op. 87 is an emulation of Bachian fugal methods as observed in The Well-Tempered Clavier, Volume One.

Human chorionic gonodotropin (HCG) affected in various ways cell cultures infected with strains of Rous sarcoma virus (RSV). The cell cultures studied were chick embryo fibroblasts (CEF), normal rat kidney cells infected with temperature-sensitive mutant (LA31-NRK) and a wild type RSV (B77-NRK). HCG increased the rate of transformation and viral titer of CEF cells infected with RSV, but not B77-NRK. HCG increased significantly transformation rates of LA31-NRK, only if the temperature sensitive transformation process was first delayed by incubation at non-permissive temperatures. It is suggested that some postinfective, pretransformational event(s) may operate before viralmediated transformation rates are increased by HCG.

Thesis studies the music and content of the opera La Traviata, focuses on the evolution of its heroine, Violetta Valéry. Carolyn Sue Finley traces the history behind the story and its reflection in the music.

A 75-item, Likert-type employee attitude survey was completed by a sample of 670 hourly and salaried employees of a Southwestern company engaged in computerized tax-form processing. The survey contained items relating to attitude dimensions roughly analogous to those subsumed under the two-factor theory of job satisfaction as defined in the relevant literature. Factor analysis, using the principle axes solution, followed by both orthogonal (varimax) and oblique (direct oblimin) rotations was performed. The oblique rotation derived 11 factors which accounted for 87.3% of the common variance. These lent statistical support to 10 of 16 a priori, hypothesized attitudinal dimensions. The six remaining hypothesized dimensions were not empirically supported.

Mice were exposed to diesel exhaust for 9 months prior to evaluation for benzo(a)pyrene disposition. On the last day of exposure the mice were instilled intratracheally with tritiated-benzo(a)pyrene ([3H]BP). The mice were sacrificed at intervals of 2, 24, and 168 hours. Disappearance of radioactivity from lungs and liver was rapid and essentially linear with time. In lungs, liver, and testes; [3H]BP metabolites were found mainly as conjugates, a form readily excretable. Clearance of the hydrocarbon from liver and testes in exposed mice was not markedly different from that in nonexposed mice. However, mice exposed to diesel exhaust had delayed [3H]BP clearance from lungs, possibly due to [3H]BP adsorption to diesel smoke particles.

This thesis examines the diverse functions of -ji in Gugu- Yalanji, a language of Northeastern Australia. A general introduction to the syntax of the language is given. The verbal affix -Ji and its effect on sentences is detailed in Chapter I. Chapter II shows that the function of -ji_ in Yidiny and Dyirbal, two neighboring languages, is to intransitivize verbs to allow sentence coordination. Sentence coordination does not appear to be the primary function of Ji in Gugu-Yalanji. Other functions of the verbal affix J_ in Yidin and Dyirbal are examined in Chapter III. The affix -_ appears to be sensitive to the features of transitivity and marks transitive verbs as intransitive, shown in Chapter IV. Chapter V develops a new hypothesis regarding the use of -j in Gugu-Yalanji. There, after considering other uses of J as a nonverbal affix, it is concluded that the suffix is actually a formal mark of stativity.