Digital Commons Network^™

Environmental Interaction In Summer Algal Communities Of Utah Lake, Mark C. Whiting

Theses and Dissertations

Utah Lake is a shallow eutrophic lake located in central Utah. It is characterized by high nutrient and silt loads and by large algal blooms in late summer and early fall. Phytoplankton samples and environmental data were taken from June through August 1974. Phytoplankton species were identified and then quantified in a Palmer counting cell. Environmental continuum theory was employed to describe algal succession and regression analysis was used to discover interactions between algal communities and the environment. Phytoplankton communities in June were characterized by high species diversity. As the lake environment became stressed in late summer due to higher …

The Dependence Of The Apparent Pk Of Ion Exchange Celluloses Of Ionic Strength, Paul Cyril Gillespie

Theses and Dissertations

Diethylaminoethyl cellulose was titrated with acid and base in various concentrations of NaCl. The pK values were determined from titration curves using a graphical technique. Two titratable groups were observed from the acid titration curve, a major and a minor group. The minor group, which represented 20% of the acid titration, was barely detectable in the base titration curve and had a salt-independent pK of 6.0. The pK of the major group was strongly salt-dependent and was approximately a linear function of log N NaCl. An equilibrium shift caused by the counter ion may explain the salt dependence. Hydrogen bonding …

Isolation, Purification, Scanning Electron Microscopy And Bacterial Dna Uptake Of Plant Protoplasts, Bronwyn G. Hughes

Theses and Dissertations

Protoplasts were isolated from tobacco and barley leaves in sucrose or mannitol using commercially available cellulases and macerozymes. Barley growth and protoplast isolation and purification conditions were optimized so that protoplasts were obtained in high yields free of unwanted debris and organelles. A technique for processing barley and tobacco protoplasts for examination by scanning electron microscopy was developed in which protoplasts seem to have maintained their structural integrity. Barley and tobacco protoplasts took up 3H-B. subtilis DNA, 125I-B. subtilis DNA or 125I-M. luteus DNA as a linear function of time (0-6 hr) and DNA concentration (0-200 μg/ml). Up to 16 …

Observations On The Distribution Of Microorganisms In Desert Soil, A. T. Vollmer, F. Au, S. A. Bamberg

Great Basin Naturalist

Population estimates of fungi, bacteria, and actinomycetes in desert soil were determined with respect to soil depth and distance from shrubs. In general the highest numbers of microbes were found at the shrub base; the lowest numbers were found in the interspaces. While the total number of organisms usually declined in deeper soil, the relative importance of the actinomycetes increased. These population trends are attributed to substrate availability and utilization and interspecific interactions.

As the soils became drier and warmer the total number of microorganisms decreased. Mold populations remained at about the same level during the study. While the numbers …

Mccarthyism In Utah, Richard Swanson

Theses and Dissertations

The exaggerated anti-Communist crusade of Senator Joseph McCarthy allegedly gained the support of a majority of Americans during the early 1950's. It is historically important and interesting to question that supposition by considering the character of McCarthy's following in each state. This study shows that in Utah sympathy for the second Red Scare abounded and evidences of McCarthyism were readily apparent.

Three indicators illustrate Utah's support for the Wisconsin senator. The defeat of Elbert Thomas in 1950 dramatically epitomizes the successful use of incriminating allegations effectively employed by McCarthy. The election, or re-election, of McCarthy supporters and the defeat of …

The Paradox Of Mormon Folklore, William A. Wilson

BYU Studies

No abstract provided.

A Survey Of Pre-1830 Historical Sources Relating To The Book Of Mormon, David A. Palmer

BYU Studies

No abstract provided.

The Effects Of Ultrasonic Vibration, Tension And Torsion On The Charge Acceptance Of The Alkaline Silver Electrode ; Ii. Potentiostatic Studies Of The Oxide Growth Rate Law For The Alkaline Silver Electrode ; Iii. The Determination Of Ionic Transport In Silver Oxide Using Radiotracer Techniques With Ag[Superscript 110m], Reed Harold Chase

Theses and Dissertations

The effect of ultrasonic vibration on the anodic oxidation of silver foil in KOH was studied. An increase in charging capacity of approximately 20% was found to be the result of cavitation erosion. Silver wire was exposed to tension and torsion during oxidation but no change in charge acceptance was caused by these stresses. The oxide growth rate on silver foil electrodes was compared to rate equations that have been proposed for other metals. Uhlig's equations for the growth of semiconductor oxides was found to describe most of the data. The data did not fit other rate equations. Determination of …

Sensitivity Of Process Variables On Rigid Polyurethane Foaming, Bruce A. Pugsley

Theses and Dissertations

Inadequate understanding and/or control of the polyurethane rigid foam process normally requires five to ten percent overpack of cavities to obtain correct fill and foam characteristics. This practice of overpacking has resulted in excessive waste and cost.

Potential Diets For Carp Production, Rex Carlton Infanger

Theses and Dissertations

The objective of this study was to determine the feasibility of raising carp on pig manure and coli, Brassica campestris. The use of pig feces as a source of fish food has been questioned by researchers (Hickling 1968). Coli was selected for dietary intake by fish since it is used for human consumption by the Indians of Guatemala. Commercial fish food (Silver Cup) was used for a control diet. These diets were both combined and used as a single source of food.

Recent Swiss Immigration Into Nebraska: An Empirical Study, W. Ernst Study

Swiss American Historical Society Newsletter

In the Bicentennial Year it appears fitting that social scientists, especially those with a historical bent and with ties to the fount of immigration into the Western Hemisphere, address themselves to the role played by non-American ethnic minorities in the United States today.

The Need Beyond Reason, Edward L. Hart

BYU Studies

No abstract provided.

Two Preliminary Studies Of The Intelligibility Of Predictor-Coefficient And Formant-Coded Speech, L. Keeler, G. Clement, W. Strong, E. Palmer

Faculty Publications

Two preliminary studies comparing the intelligibilities of predictor-coefficient versus formant-frequency-coded speech and the intelligibilities of predictor-coefficient-coded speech using different numbers of coefficients are reported.

Full Issue

Swiss American Historical Society Newsletter

No abstract provided.

The Topolotron: A High Beta Device With Topological Stability, Keith H. Brown, H. R. P. Ferguson, J. H. Gardner, Larry V. Knight, H. Mark Nelson

Faculty Publications

The concept of topological or structural stability is introduced and its importance in the magnetic confinement of plasmas is discussed. Topological stability requires the presence of a pair of limit cycles in the magnetic field configuration. This paper deals with the design of an experimental device possessing limit cycles. The design includes a high beta (b=1), high density (10^16), hot (100 eV) hydrogen plasma which is to be compressed by a factor of about 5 in a torodial device of 25 cm average major radius with a capacitor bank rise time of less than 2 µsec. Two shaped toroidal coils …

Effects Of Human Relations Training On The Social, Emotional, And Moral Development Of Students, With Emphasis On Human Relations Training Based Upon Religious Principles, Stephen R. Covey

Theses and Dissertations

The effects of human relations training on 222 students in organizational behavior labs were measured in this study. Eighty students were randomly assigned to one of four sections taught by the same instructor--two traditional sections and two stewardship sections-in a Solomon Four-Group Experimental Design. The two stewardship sections used individualized goal selection and accountability procedures with discussions and readings incorporating religious principles. Four data-gathering instruments were used to measure the social, emotional, and moral development of the students . A one-way analysis of variance on pre- and posttest questionnaires from all 222 students showed no significant differences among any of …

The Birthday Evening, Howard Robinson

BYU Studies

No abstract provided.

Ordained And Acting Teachers In The Lesser Priesthood, 1851-1883, William G. Hartley

BYU Studies

No abstract provided.

B. H. Roberts On A Non-Mormon Topic: An Exercise In Historiography, Ted J. Warner

BYU Studies

No abstract provided.

The Acting Career Of Dean Jagger, Crae James Wilson

Theses and Dissertations

The purpose of this study is to follow the acting career of Dean Jagger through a list of theatrical productions, motion pictures, radio and television appearances. The study will also include a brief biography of his life and personal philosophies which contribute to the success of the actor and the person.

The study will follow an appraisal of personal interviews with Mr. Jagger and his wife, information gained from the "Dean Jagger Collection" located at Brigham Young University Manuscrips Library, and critical review and interviews with his fellow actors.

An Improved Fission Product Pressure Model For Use In The Venus-Ii Disassembly Code, Ray Leland Jensen

Theses and Dissertations

The world's growing need for safe, reliable, and long-term energy sources has intensified the research being conducted in the development of nuclear power. The operation of power reactors is contingent upon the continued availability of the fissile material required to maintain a critic a l reactor. The only naturally occuring fissile material is an isotope of uranium, U-235, which only accounts for 0.76 percent of the uranium that is mined. Due to the relative scarcity of this important fissile material it is estimated the United States' sources of economically recoverable fissile material will be delinquished with in about twenty-five years.^1

Steady-State Fluidics: Computer-Aided Analysis Of Analog Fluidic Circuits By Use Of Experimentally Determined Characteristic Curves, Raymond P. Martin Jr.

Theses and Dissertations

One of the fundamental tasks confronting engineers is the transmission and control of energy. The engineer, faced with this requirement and influenced by details of a specific, situation, his education and experience, and the customer's desires, will probably select a mechanical, electrical, or electro-mechanical system. Often a better choice exists—the use of a fluid power system. Fluid power systems employ pressurized fluids, liquids and/or gases, to transmit and control energy. Hydraulic systems use liquids, usually special oils or treated water. Pneumatic. systems use air or other gases. Both types are versatile and find a wide range of application.

The Incidence And Life Cycle Of Diplostomum Spathaceum In Utah, R. Scott Evans

Theses and Dissertations

Diplostomum spathaceum (Rudolfi 1819), (Diplostomidae) the fish eye fluke which causes the disease diplostomatosis, was reported in Utah by the Division of Wildlife Resources in 1974. Previous to this date diplostomatosis was suspected to occur in three reservoirs in the state. Diplostomatosis, whi.ch is due to the presence of the metacercarial stage of this parasite, causes cataracts of the lens. The incidence of the disease in Utah has generated public and academic concern.

Sintered Diamonds, H. Tracy Hall

BYU Studies

No abstract provided.

A First Aid Teaching Unit For The Missionary System Of The Church Of Jesus Christ Of Latter-Day Saints, Glenn R. Schiraldi

Theses and Dissertations

The intent of this study was to develop a sixty minute, mediated practical first aid teaching unit for the missionary system of the Church of Jesus Christ of Latter-day Saints.

The Image Of Provo, Utah, As Seen Through The Perceptions Of Its Residents, J. Larry Murdock

Theses and Dissertations

The data for this study was gathered through a random stratified geographic sample from all residential areas of Provo. The study was based on 84 completed questionnaires which were gathered on the basis of a broad socio-economic cross section. All of the questions were open-ended, and included the drawing of mental maps of residents' images of Provo. The data was analyzed on the basis of respondents' areas of residence, age, length of residence in Provo and religious background.

The purpose of the study was to focus on the visual perception of Provo, Utah, as seen by its residents. The study …

The Public Relations Practices Of Directors Of Institutes Of Religion Of The Church Of Jesus Christ Of Latter-Day Saints In California, 1974-75, Ronald Charl Louw

Theses and Dissertations

Seventy-five directors of the Institutes of Religion of The Church of Jesus Christ of Latter-day Saints in California, responded to a questionnaire regarding their public relations' practices. Institute directors with formal training in public relations utilized more practices, an average of 30.4, than directors without formal training who used an average of 26.9 practices. Institute directors in different locations (divisions) did not differ in the average number of practices used. Seventeen percent of the directors had structured public relations' programs. Directors emphasized more frequently public relations practices relating to priesthood leaders (72 percent) and students (67 percent) than practices relating …

How The Mass Media Effects Our Values And Behavior, Victor B. Cline

Issues in Religion and Psychotherapy

No abstract provided.

Steady State Fluidics: The Static Matching Of Fluidic Amplifiers And Loads, Frank J. Redd

Theses and Dissertations

"Fluidics" is the title applied to a relatively new technology which is concerned with the control of fluid power and the processing of information through the use of the fluid mechanical properties of the fluid medium itself. The absence of moving parts and the relatively low sensitivity to enviromental conditions suggest the probability that fluidic systems will prove to be faster and more reliable than the mechanically controlled (valves, diaphragms, springs, etc.) fluid systems which they are designed to replace.

Full Issue

Swiss American Historical Society Newsletter

No abstract provided.