The objectives of this investigation were two-fold. The first was to determine the personal characteristics of Bibliographic Network Coordinators, both past and present; the second was to compare these identified characteristics with those of persons working in traditional library positions at comparable levels of responsibility.

This study was an inquiry into the use of the library and attitudes toward librarians and libraries by 484 academic business majors. Data was collected by means of a questionnaire administered to a sample of all business majors at one university. Demographic and social status data, based on Hollingshead's categories, and responses to statements concerning library use, librarians, and libraries were analyzed by means of the Kolmorogov-Smirnov Test, the Median Test and Spearman correlation coefficients.

The purposes of this study were (1) to determine if the culture of the student's first language was a significant variable in field-dependent-independent cognitive learning style, and (2) if a student's second language achievement has a significant relationship to variables of grade level, sex, time in an English as a second language (ESL) program, second language proficiency level or cognitive learning style. It was hypothesized that (1) there are significant positive correlations between field-independence and the variables of achievement, proficiency level, and grade level, (2) there are significant positive correlations between second language achievement and proficiency level, grade level and time in an ESL program, (3) there are no significant differences in field-dependence between the sexes or the four cultures of Laotian, Spanish, Tongan, and Vietnamese, and (4) there is no significant difference in the mean achievement score between the sexes.

The problem of this study was a test of a specific videotape designed to influence the actions of tour guides for older adult groups. The purposes of the study were to observe guide performances and older adult responses before and after training in techniques for sharing information with older adults in public spaces. The hypotheses were tested. 1) Guides after training would exhibit significant differences in behaviors of pointing, repeating, pausing, questioning, conversing, facing art when talking, talking inaudibly, pacing rapidly. 2) Older adult drop-outs would decrease on tours with especially trained guides.

The purpose of this study was to determine the effects of participation in a Computer-Assisted instructional program (CAI) on fourth grade student attitudes and achievement in reading and mathematics. This study, based on Campbell and Stanley's quasiexperimental design 10, utilized Diascriptive Reading software for the CAI mathematics group and Milliken Math Sequences software for the CAI mathematics group and was completed by 242 students. The time span between pretests and posttests was seven months. Iowa Tests of Basic Skills, Level 10, Form 7/8 was used for achievement testing and Estes Attitude Scale was used for attitude testing. Analysis of covariance was used to determine significance at the .05 level. The findings for this study were: 1. Reading Comprehension posttest scores were significantly higher for the control group than for the reading experimental group; 2. Reading Comprehension posttest scores were not significantly higher for boys than for girls within the reading experimental group; 3. Total math posttest scores were significantly higher for the mathematics experimental group than for the control group; 4. Concepts and Computation math subsets posttest scores were significantly higher for the mathematics experimental group than for the control group. There were no significant differences between the posttest scores …

The problem of a vibrating-rotating polyatomic molecule is treated, with emphasis given to the case of molecules with C_3v symmetry. It is shown that several of the gross features of the rotational spectra of polyatomic molecules in excited vibrational states can be predicted by group theoretical considerations. Expressions for the rotational transition frequencies of molecules of C_3v symmetry in the ground vibrational state, singly excited degenerate vibrational states, and doubly excited degenerate vibrational states are given. The derivation of these expressions by fourth order perturbation theory as given by Amat, Nielsen, and Tarrago is discussed. The ground and V_10=1 rotational spectra of propyne have been investigated in the 17 to 70 GHz, and 17 to 53 GHz regions, respectively, and compared with predictions based on higher frequency measurements. The V_9=1 and V_10=2 rotational spectra of propyne have been investigated and assigned for the first time. A perturbation of the V_9=1 rotational spectra for K=-l has been discovered and discussed.

This study was conducted to determine the administrative functions that community college academic administrators perform with microcomputers; to identify demographic characteristics that distinguish administrators who rate their overall use of the microcomputer higher than others; to ascertain whether the importance placed on (1) microcomputer uses, (2) computer training, and (3) non-training conditions affecting computer use differed from the perceived current uses, training, and adequacy of conditions. Data for this study were collected through a survey instrument that was devised and evaluated for use in the study. The survey instrument was delivered during the fall, 1984 semester to the forty—two division chairs serving at the seven colleges that comprise the Dallas County Community College District. Thirty five division chairs responded to the survey for an 83.33 per cent return rate, and thirty-four of the survey forms returned were useable for analysis.

This research examines problem definition as the first step in a sequential problem solving process. Seventy-seven managers in four diverse organizations were studied to determine common characteristics of problem definers. Among the variables considered as differentiating problem definers from non-problem definers were cognitive style, personal need characteristics, preference for ideation, experience, level of management, and type and level of education. Six hypotheses were tested using the following instruments: the Problem Solving Inventory, the Myers-Briggs Type Indicator Schedule, the Preference for Ideation Scale, the Edwards Personal Preference Schedule, a Problem Definition Exercise, and a Personal Data Questionnaire. Among the managers studied, only twelve were found to be problem definers. Such small numbers severely limit the ability to generalize about problem definers. However, it is possible that problem definers are scarce in organizations. In terms of cognitive style, problem definers were primarily thinking types who preferred evaluation to ideation in dealing with problems, making judgmental decisions on the basis of collected facts. Problem definers were not predominant at lower levels of the organization. One-third of the problem definers held upper level management positions while another one-fourth were responsible for specialized activities within their organizations, overseeing special projects and individuals much like upper …

A variety of aquatic bacteria were isolated and tested for their ability to degrade humic substances and their aromatic residues/monomers which serve as precursors of the trihalomethanes (THMs) found in chlorinated drinking waters. The majority of them were Gram-negative, oxidative types dominated by pseudomonads. Most of the 146 isolates were found to utilize as their sole source of carbon several or more of ten aromatic compounds known to be products of degradation of humus and also to be precursors of THMs. The aromatics tested, with percent of the isolates utilizing the compound in parentheses, were: p-hydroxybenzoate (49), vanillic acid (48), 3,5-dihydroxybenzoic acid (16), syringic acid (19), vanillin (30), benzoic acid (27), ferulic acid (34), resorcinol (9), catechol (8) and protocatechuic acid (27).

The purpose of this study was to determine whether the wives' perceptions of personal control over the process of childbirth were related to couples' choices and utilization of three birthing alternatives (home birth, unmedicated hospital birth, and medicated hospital birth). The wives' perceived control over the childbirth process was expected to vary inversely with the level of medical intervention in the birthing alternative chosen. The home birth mothers were expected to perceive themselves as having more control over childbirth than were the unmedicated hospital group mothers, and the unmedicated hospital group mothers more than the medicated hospital group mothers. The husbands' perception of their wives' perceived control in childbirth and their participation was also measured.

The present investigation involved the development of a psychobiologic profile of individuals who experience exercise-related mood-enhancement and those who do not. The sample (N=301) consisted of students participating in 10-week exercise classes at North Texas State University. All subjects completed pre-test inventories assessing various psychological (i.e., trait anxiety and depression, attitude toward physical activity, self-estimation of physical ability and attraction to physical activity, expectancies of health benefits from exercise, and self-motivation) and biological (i.e., aerobic capacity and body fat percentage) variables. Trait anxiety and depression were also assessed before and after the 10-week exercise program and state anxiety and depression were assessed on an acute basis on two separate occasions during the program. Multivariate analysis of variance and discriminant function analysis were employed to determine which variables maximally discriminated between individuals who experienced mood-elevations following exercise and those who did not enjoy such rewards. The hypothesis that these two groups of individuals differ significantly from each other was not upheld by the results; thus, an overall psychobiologic profile could not be developed. However, the data did reveal that individuals who held a more positive attitude toward physical activity for the purpose of health and fitness reduced their state anxiety and …

Based on psychodynamic and object relations theories, 17 variables were proposed to be salient for those suffering from bulimia. In the present study four groups were compared: (a) bulimics with a prior history of anorectic-like behavior (FAB); (b) bulimics without a prior history of anorectic-like behavior (NAB); (c) a nonobese, nonbulimic group who evidenced excessive concerns about their weight (CAW); and (d) a normal control group (Control). Differences were predicted between both the bulimic and control groups as well as between both bulimic groups (FAB and NAB). Seventy-five women between the ages of 18 and 35 completed the Minnesota Multiphasic Personality Inventory, the Eating Disorders Inventory, and Levenson's Locus of Control Scale. Results of a multivariate analysis of covariance procedure revealed differences across the groups on 12 variables. Post hoc testing indicated that both bulimic groups differed from the control groups confirming the first hypothesis. Further, the bulimic groups were differentiated from each other in the predicted direction on 10 of the 12 variables, lending support for the second hypothesis. Overall, the results suggest a progression of psychopathology and clinical symptomatology. In order of decreasing psychopathology were the following groups: FAB, NAB, CAW, and Control groups. Also, a discriminant analysis …

To test the hypothesis that a metaphorical technique would be more effective than a direct technique to induce hypnosis, 60 volunteers from students at North Texas State University were divided into high- and low-susceptible subjects by the Harvard Group Scale of Hypnotic Susceptibility. They were randomly assigned to direct and metaphorical induction groups and to a control group, with 10 high- and 10 low-susceptible subjects in each group. After hypnosis they completed the Field Inventory of Hypnotic Depth, and their mean scores were subjected to an analysis of variance and a Newman-Keuls test. Neither method of hypnotic induction was found more effective than the other, although both were effective when compared to a control group. It was also found that subjects who expected to be able to experience hypnosis were no more likely to be hypnotized than those who expected not to be able to experience hypnosis. Finally, it was found that low-susceptible subjects were as likely to respond to a post-hypnotic suggestion as high-susceptible subjects.

The reactions of tert-butyl-, sec-butyl-, and n-butyllithium with dimethylfluorovinylsilane include addition to the double bond to give both silene and silenoid intermediates, fluorine substitution, and a novel vinyl substitution. For the tert-butyllithium reaction, product stereochemistry and trapping experiments using both cyclopentadiene and methoxytrimethylsilane show that silenes are not formed in THF. In hexane about 67% of the 1,3-disilacyclobutanes obtained arise from silene dimerization while 33% are formed by silenoid coupling. In hexane the order of reactivity for addition, t-Bu > sec-Bu > n-Bu, is opposite that for fluorine substitution. The vinyl substitution is most significant with secondary alkyllithium reagents including the tert-butyllithium adduct to dimethylfluorovinylsilane and with sec-butyllithium itself. Evidence for the formation of vinyllithium or ethylene in the process could not be obtained.

The problem of this study was an analysis of major spelling deficiencies among collegiate business students. The purposes were as follows: (1) to develop a diagnostic instrument that will measure spelling deficiencies; and (2) to make recommendations regarding the preparation of materials that will assist students in overcoming these deficiencies. Written assignments prepared by collegiate Business Communication students were examined for spelling errors. Errors were then classified into the following categories: (1) words with "ie" and "ei" ; (2) final "e"; (3) final consonant rule; (4) final "y"; (5) confusion over vowel sounds; (6) pronunciation problems; (7) sound-alikes; (8) plurals; (9) apostrophes; (10) omissions; (11) additions and repetitions; (12) substitutions; (13) demons; and (14) miscellaneous. Percentages of total errors served as a guideline for preparation of a Table of Specifications, and a Spelling Diagnostic Test was developed. Validity of the instrument was determined by a panel of experts. The test was then administered to 214 collegiate business students, and a reliability coefficient of .83 was determined using the split-half method.

Symphony No. 1 "Concertante" is a work of approximately twenty-two minutes duration for chamber orchestra. The work is scored for flute (doubling piccolo), oboe (doubling English horn), B-flat clarinet, bassoon, trumpet, F horn, trombone, tuba, percussion, harp, piano (doubling celesta), solo violin, solo viola, solo cello, solo double bass, and strings.The percussion battery, which is to be played by one performer, includes three timpani, vibraphone, orchestra bells, xylophone, chimes, suspended cymbal, bass drum, snare drum, and two triangles. One group of instruments, including the eight winds, percussion, and the four solo strings, is treated primarily in a soloistic manner although it also functions as a part of the ensemble. The remaining group, piano, harp, and strings, functions primarily as an accompanying group although it does get some soloistic treatment. The work is in four movements, each of which uses the traditional symphonic form. Movement I is in sonata-allegro form, movement II a simple ternary "song" form, movement III a scherzo and trio, and the final movement is a theme and variations. These traditional forms apply only to thematic use and development, however, for the tonal scheme is developed in a broader design which unfolds throughout the course of the four …

The problem of this study was to identify professional development needs of elementary school principals who are implementing site-based management. The purpose was to develop a prioritized list of developmental needs of principals participating in site-based management in the evaluation of teacher performance, instructional knowledge, behavioral life styles, and other needs as identified by a decentralized decision-making questionnaire. The population for this study was the sixty-one elementary school principals in a large urban school district. The principals were encouraged by the central administrative staff to assume the responsibility of site-based managers during the 1981-1982 school year. Three priority areas involving decision making at the school site evolved. These three areas were personnel, instruction, and budgeting. During the three succeeding years, additional areas of decision making have been added, such as building-level staff development, implementation of flexible student schedules, and provisions for specialized summer programs. Findings of the study showed that there was normality in the assessment of teaching skills by principals, that a significant correlation existed between principals' knowledge of instruction and principals' teacher evaluation scores and that a significant correlation existed between principals' teacher evaluation scores, female principals being more consistent. The findings showed that no correlation existed between …

One hundred women aged 20 to 50 were asked to compare their sexual experience before diagnosis and following treatment for benign and malignant cervical disease. The subjects were divided into five groups: three groups had definite cervical intraepithelial neoplasia (CIN), (Class II or III). Two groups were treated with cryotherapy, and one with hysterectomy. One group had a provisional diagnosis of CIN I, but received no treatment. Subjects in the last group had microinvasive cervical carcinoma and were also treated with hysterectomy. All subjects had ovarian function; all were sexually active at the time of treatment. They were interviewed at least six months post-cryotherapy and 15 months post-hysterectomy. All subjects completed a variant version of the Derogatis Sexual Function Inventory (DSFI).

The differences among certain physiological changes occurring in response to mirthful laughter, directed relaxation, and verbal speech were investigated. These changes included amount of muscle tension, as measured with surface electromyography, in the forehead and in the upper body as recorded from the forearms bilaterally, peripheral surface skin temperature, heart rate, and respiration rate. The study sought to determine whether the net effect of laughter, as measured on these five variables after a three-minute refractory period, is a more relaxed state than existed before the laughter. Determination of the similarity between the changes following laughter and the changes following directed relaxation was made in comparison with the changes following verbal speech. Factors of prior anxiety, pre- and post-self-esteem levels, humor level, and laughter intensity were examined. Historical and theoretical perspectives were reviewed, as well as the known information on physiological responses to laughter.

We have conducted a detailed experimental and theoretical study of nonlinear absorption in semiconductors. Experimental measurements were made on a variety of materials at wavelengths of 1.06 and 0.53 microns using a picosecond Nd:YAG laser. Both two- and three-photon processes were investigated. Values of nonlinear absorption coefficients extracted from these measurements show excellent agreement with recent theory and scaling rules. Our theoretical investigation has been carried out for two-, three-,and n-photon absorption, for both continuous and pulsed sources. Expressions are obtained for the transmission of the sample in terms of the incident irradiance for each case. The physical interpretation of these results is discussed. We have also considered the effects of the photogenerated carriers on the measurements. Equations are developed that include linear absorption by these carriers. We have observed severe distortions on the transmitted beam, caused by changes in the refractive index of the material, due to the presence of these carriers. We present a model that accurately describes these effects in terms of the photogenerated carrier density. We have developed several novel techniques for monitoring nonlinear absorption. In particular, we have adapted the photoacoustic technique to the measurement of nonlinear absorption in semiconductors. We have also developed a …

Much has been written during the past decade to explain the relationship between financial and operating leverage and stock-price volatility. However, the relationship between combined leverage and stock-price volatility has yet to be fully explored. Mandelker and Rhee's (MR) recent study uses both operating and financial leverage in a regression (equivalent to the traditional total leverage—DTL) and shows that both types of leverage are positively associated with common stock betas. Huffman recently demonstrated that there are interactions between operating leverage and financial leverage. Therefore, MR's model could be oversimplified. This study examines the relationship between firms' combined leverage and their stock-price volatility. The study also examines industry and industry growth to see if the relationship is influenced by these factors. The question is whether DOCL is a better risk measure than DTL and whether there is an interaction between operating and financial leverage. The inferences that can be drawn from the study's results are as follows: (a) Stock risk is a function of combined leverage; (b) Industry significantly influences the relationship between stock risk and DOCL; (c) High growth increases the relationship between stock risk and DOCL; (d) Combined leverage (DOCL) is a better risk measure than total leverage (DTL). …

This study investigated: the impact of addition of learning styles identification and interpretation on an existing academic skills improvement program, the effect of student's learning new material at preferred or non-preferred times of day, and learning style characteristics for different sexes, ethnic groups, and college majors. Student GPAs and probationary status were compared for 144 freshman students admitted on Individual Approval status, i.e., 71 students who completed the Academic Skills Workshops during the Fall of 1983 and 73 students who completed a revised program in 1984. Reading gain scores and learning style characteristics were studied for the 1984 students. Learning style characteristics were measured by the Productivity Environmental Preference Survey and reading gains were measured by the Nelson-Denny Reading Test. Analysis of variance, simple effects analysis, and chi square analysis were used to determine whether GPAs and probationary status significantly improved after the addition of learning style information for the total sample, sex and ethnic subgroups. Reading gain scores were compared by means of a t test. Analysis of variance and simple effects analysis were used to determine whether different learning style preferences existed for different sex, ethnic, and college major groups. Findings indicated that GPAs and probationary status did …

The premenstrual syndrome (PMS) continues to be an enigma for many: those women who report PMS, for professionals who attempt to treat premenstrual symptoms, and for researchers attempting to identify PMS and to compare treatments. The present study investigated the responses from 86 subjects between the ages 30-45 for their perceptions of daily stress and coping styles by PMS level. Three levels of PMS were formulated by subject responses to the questionnaire (a) PMS for scores within the criteria, (b) Non-PMS for scores lower than the criteria, and (c) Psy-Non-PMS for certain scores higher than the criteria with a psychological, or neurotic, profile. Hassle intensity (daily stress) and coping style, whether problem-focused (P) or emotion-focused (E), were assessed by questionnaire. In addition, help seeking behavior, i.e., whether a woman sought help from a doctor in the past twelve months, was examined but did not significantly relate to level of PMS, hassle intensity, or coping style. Psy-Non-PMS women reported perceiving significantly more hassles and significantly greater use of four of the E coping styles, Detachment, Focusing on the Positive, Self-blame, and Keep to Self, than the Non-PMS women. PMS women endorsed perception of significantly more hassles and significantly greater use of …

A large body of research has depicted relative arousal of the left and right cerebral hemispheres as related to utilization of particular defensive coping styles, level of anxiety, and perceptual styles. The right and left hemispheres are also presented in the literature as differing in visual-spatial and verbal-auditory short term memory abilities. The present research studied 127 right handed undergraduates' relative performance on forward spatial and digits memory spans in relation to hemispheric lateralization and other perceptual and personality variables hypothesized in the literature to be related to hemispheric arousal. It was hypothesized that the forward spatial and digit memory spans would display asymmetrical sensitivity to hemispheric arousal. That is, in a series of successive factor analyses, a hemispheric balance factor, a trait anxiety factor, and a short term memory factor would emerge. The three factors were hypothesized to be unrelated to each other. During an initial group pretesting, subjects were given pencil and paper measures of handedness, trait anxiety, and several defensive coping styles. During a second individual testing, subjects were administered measures of short term memory, field independence, and a computerized presentation of geometric designs which measured the subjects ability to detect differences which occurred at either the …