The temperature-dependent catalytic activity of rat liver 3-hydroxy-3 -methylglutaryl coenzyme A reductase (HMG-CoA reductase) displays the nonlinear Arrhenius behavior characteristic of many membrane-bound enzymes. A two-conformer equilibrium model has been developed to characterize this behavior. In the model, HMG-CoA reductase undergoes a conformational change from a low specific activity to a high specific activity form. This conformation change is apparently driven by a temperature-dependent phase transition of the membrane lipids. It has been found that this model accurately describes the data from diets including rat chow, low-fat, high-carbohydrate, and diets supplemented with fat, cholesterol or cholestyramine. The effects characterized by the model are consistent with the regulation of HMG-CoA reductase by enzyme-lipid interactions.

In a statistical comparison of orthogonal normalized varimax factor analytic solutions for the MMPI-168 including and excluding invalid protocols of psychiatric inpatients, at least one factor reflection was observed. Factors identified were Psychotic Distortion (Absence of Distress), Somaticism, Depression, Extroversion, Masculinity-Femininity, and Low Morale. Factors obtained, and representative clinical scales, were consistent with those obtained by others in investigations of both abbreviated and standard MMPI forms. Statistical comparison of factors identified by the two analyses indicated congruence. Possible sources of factor distortion were discussed.

This study was concerned with determining the awareness of secondary public school teachers, in the Lewisville Independent School District, regarding the laws which relate to their profession. Fifty-nine true or false statements, involving nine areas of public school law, were administered. The study compared teachers' knowledge in areas of school law based on their personal background. The thesis was divided into five chapters. These chapters included the Introduction, Review of Literature, Procedure, Analysis of Data, and Summary and Recommendations. The findings of this study indicated the majority of teachers and administrators had an average knowledge of school law. Areas with lower incorrect responses included students' rights and the copyright law. A recommendation was made to plan an inservice meeting with emphasis placed on the most frequently missed responses

Santa Eulalia M. Md. 7, dated January 20, 1600, is part of the San Miguel Acatán Repertory, which originated in the northwestern highlands of Guatemala and is presently owned by the Lilly Library of Indiana University. The manuscript contains thirty-four four-part songs and dances, two thirds of which are villancicos for Christmas, Easter, the Eucharist, and the feasts of All Saints and St. Michael. The remaining third consists of Latin biblical texts in either fabordón or contrapuntal settings, three pieces with Náhuatl texts, and an instrumental pavana. The thesis contains a modern edition of Santa Eulalia M. Md. 7 with critical notes and commentary, a comparison of the pieces with villancicos and fabordones of European origin, and a survey of several aspects of Mayan culture.

The forty-one poems comprising this thesis are written in a variety of styles and reflect my general international eclecticism. The most prominent influences on my work are ancient Chinese verse, as exemplified by the poems for N., and Zen tanka and haiku, as exemplified by "Detail from a Cubistic Autobiography." Largely imagistic rather than narrative, the poems were conceived in an effort to record my experiences and to define my reactions to those experiences.

The present investigation attempted to determine whether imagery combined with relaxation (VMBR) facmlitated karate performance more effectively than either imagery or relaxation alone. Each subject (N=30) was randomly assigned to either a VMBR, relaxation, imagery or placebo control condition. Trait anxiety tests were administered at the beginning and the end of the six week test period. Performance tests were administered at the final class period along with precompetitive state anxiety. Trait anxiety results indicated a reduction in trait anxiety for all groups. State anxiety results indicated that the VIYBR and relaxation groups exhibited less state anxiety than the imagery and control groups. Performance results produced a main effect only for sparring with the VMBR group exhibiting better performance than all other groups.

This study investigated the self-concepts of five, six, and seven year old children after participation in organized and nonorganized play programs. The subjects were sixty boys and girls participating in Little League Tee-Ball programs and sixty boys and girls participating in the City Playground Program in the Fort Worth, Texas, area during the 1979 spring and summer season. The instrument used to measure self-concept was the Purdue Self-Concept Scale, Results indicated that the type of organization has little effect upon the self-concept of the children in this study.

Sixteen Nerodia rhombifera were used in each of two experiments investigating operant conditioning of the tongue flicker response. A yoked pair design was utilized throughout phases of baseline, continuous reinforcement, partial reinforcement, and extinction. During partial reinforcement, one-half of the experimental animals were reinforced FR-4 and the other half were reinforced continuously. Control subjects were treated as were their experimental partners, with the exception of noncontingent reinforcement. Statistical comparisons between means for groups during the CRF phase, partial reinforcement phase, and extinction phase were nonsignificant. However, because some snakes in the experimental groups appeared to show increases in response rate during CRF and FR conditions, the possibility exists that modification of task parameters will produce positive results in future research.

The problem of this study was to compare the expectations of the interior design profession regarding entry level requirements of new graduates of Southwest Texas State University and the present interior design curriculum at Southwest Texas State University. Questionnaires seeking information regarding skills and knowledge thought necessary for graduating interior design students were sent to professional interior designers in the South Texas area. Simple descriptive statistics were used to analyze the responses. The survey of the interior designers practicing in the South Texas areas conducted in this needs assessment of the Interior Design program at Southwest Texas State University supports giving consideration to the development of new courses or content revision of existing interior design courses offered at Southwest Texas State University.

This study investigated the psychobiological and pacing characteristics of the 1.5 mile run. Sixty-six males (18-27 years) performed the run, and were monitored for ratings of perceived exertion, heart rate and split times. The perceived exertion values increased in a near-linear fashion inconsistent with other measures, and thus are not considered a supportable indicator of physiological performance during the run. Pace was characterized by an initial sprint that slowed to a near-steady pace and concluded with a final sprint. The initial and final sprints were most highly related to the variance of performance time. Initially, heart rate accelerated greatly. This acceleration slowed, ending in near-maximum heart rates. The data suggested that performance may rely heavily upon anaerobic mechanisms, and that variance in previously reported correlational analyses of VO2max and 1.5 mile run performance times may be somewhat due to anaerobic mechanisms.

Australia's dual system of broadcasting has provided national and commercial radio services to Australians in both urban and remote areas. Networks were formed to serve these areas, but advertising agencies tended to dominate smaller commercial networks on behalf of their clients. Most of these failed. The Macquarie Broadcasting Service Pty. Ltd. (MBS) network began in 1938 and offered network programming and sales representation to stations affiliating with them. Its subsidiary, Artransa Pty. Ltd., also produced and syndicated programs and provided sales representation both nationally and internationally. This study concludes that MBS' contribution to Australian commercial broadcasting was the development of networking and that it had the greater listenership of any commercial network in this time period.

Trihalomethanes such as chloroform, dichlorobromomethane, dibromochloromethane, and bromoform are formed when natural water is chlorinated in water treatment. This investigation explores the use of ozone to remove organic precursors from natural water, thus decreasing trihalomethane formation potential. The data suggest a mechanism involving formation of secondary precursors after prolonged contact with ozone, suggesting that trihalomethane precursors may be minimized by using low doses of ozone and short contact time.

Serotonin has been implicated as a modulator of feeding behavior. This experiment was designed to alter brain serotonin levels through dietary means in hypothalamic ventromedial-lesioned and unlesioned rats. Daily food, water, and animal weights were measured. The purpose was to determine if VMH lesions altered the feeding pattern found in unlesioned rats. Although food intake for tryptophanenriched diets and tryptophan-deficient diets did not differ from their respective control groups, in some cases gross animal weights did differ significantly between experimental and control groups and between lesioned and unlesioned groups. A proposed model explains how a "low" energy signal and a "high" protein signal cycles amino acids through gluconeogenesis to comPensate for an energy deficit.

Subjects were 101 Mexican-American adults (53 females, 48 males), age range 17-72, and most often were in the blue-collar job level. Instructions were that (a) 18 pairs of slides would be shown; (b) each slide would be projected for 15 seconds; (c) each of the two models was to be judged on intelligence, attractiveness, friendliness, happiness, and success; and (d) the rating scale would be marked corresponding to the left or right slide. Results indicated the lighter-skinned models were judged more favorably than the darker ones on all five dimensions. To the extent this study sheds light on an important cultural value, it is hoped the treatment of Mexican-Americans in therapy will be facilitated and improved.

Huian plasma high-density lipoprotein (HDL) were isolated by a procedure employing polyanion precipitation and column chromatography. Lipid and protein composition of the HDL isolated by this method was found to be similar to another HDL preparation isolated by ultracentrifugation. However, minor differences were noted, including a higher phospholipid and apoproteinE content and lower triglyceride content of the HDL isolated by column chromatography. Four subfraction of HDL were obtained following chromatography on an anion exchange column. The subfraction four had the highest esterified to free cholesterol ratio, the second highest phospholipid to unesterified cholesterol, and the lowest molecular weight. In addition it was consistently coincided with lecithin: cholesterol acyltransferase (LCAT) activity and found to be the best substrate for the enzyme.

The investigation is a historical survey tracing the development of Casa Mañana Musicals, Inc., Fort Worth, Texas, from its experimental beginning in 1958 as the first permanent musical arena theatre in the United States, through twenty-three subsequent seasons. The study includes a chapter on the origins of theatre and the influences behind its concept dating back to the 1936 Casa Mañana produced by Billy Rose. Subsequent chapters deal with the theatre's seasons and its struggle to gain acceptance. The theatre's more recent financial and labor problems are also considered. Major sources include such unpublished data as production and financial records of the theatre, contracts, correspondence, minutes of the board of directors, and interviews. Published sources include accounts in newspapers and periodicals.

The proposition that American network television news coverage of sub-Sahara Africa increased substantially after the 1975-76 Angola conflict is examined in this study of the responsiveness of television to changing news values at the international level. News coverage for two thirty-month periods before and after the Angola conflict is compared using data derived from the Television News Index and Abstracts. The study finds that network news coverage of sub-Sahara Africa increased from 0.36 per cent of total news time before the Angola conflict to 4.46 per cent after, indicating that network news coverage is a reflection of the intensity of United States government activity at the international level.

The purpose of this study is to bring together the information necessary to assess the Mixtec goldsmithing techniques and the designation of these techniques as a culmination of New World metallurgy. Historical and technological backgrounds are examined in depth.

Powdery mildew of wheat, Erysiphe graminis f. sp. tritici attacks wheat during periods of rapid growth, high levels of nitrogen fertilizer, high humidities, and cool temperatures. Yield losses due to mildew are caused by reduction in photosynthesis, increase in respiration and transpiration, impairment of heading and grain filling, and loss of plant vigor and growth.

The North Texas State University General Bulletin includes information about class offerings as well as general information about the university (academic calendar, admissions and degree requirements, financial information, etc.) about research, and about the colleges and schools on campus. Index starts on page 324.

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.