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Drift Of Oligophlebodes Sigma And Baetis Bicaudatus In A Mountain Stream, William Dean Pearson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to clarify the relationships between drift rates, population density, production rates, key environmental factors, and movements of adults within two populations of stream insects (a caddisfly--Oligophlebodes sigma and a mayfly--Baetis bicaudatus).

Samples of benthic invertebrates (424 total) were collected every 28 days at four stations on Temple Fork of the Logan River, Utah, from October, 1967 to September, 1969. Samples of drift invertebrates (181 total) were collected every 14 days at three stations on Temple Fork during the same period. During summer months (June-September) a day and a night drift sample …

Model For Bathtub-Shaped Hazard Rate: Monte Carlo Study, Glen S. Leithead

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A new model developed for the entire bathtub-shaped hazard rate curve has been evaluated as to its usefulness as a method of reliability estimation. The model is of the form:

F(t) = 1 - exp - (ϴ₁t^L + ϴ₂t + ϴ₃t^M)

where "L" and "M" were assumed known.

The estimate of reliability obtained from the new model was compared with the traditional restricted sample estimate for four different time intervals and was found to have less bias and variance for all time points.

This was a monte carlo study and the …

A Report On The Statistical Properties Of The Coefficient Of Variation And Some Applications, Howard P. Irvin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Examples from four disciplines were used to introduce the coefficient of variation which was considered to have considerable usage and application in solving Quality Control and Reliability problems.

The statistical properties were found in the statistical literature and are presented, namely, the mean and the variance of the coefficient of variation. The cumulative probability function was determined by two approximate methods and by using the noncentral t distribution. A graphical method to determine approximate confidence intervals and a method to determine if the coefficients of variation from two samples were significantly different from each other are also provided (with examples). …

A Survey In Mean Value Theorems, David A. Neuser

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A variety of new mean value theorems are presented along with interesting proofs and generalizations of the standard theorems.

Three proofs are given for the ordinary Mean Value Theorem for derivatives, the third of which is interesting in that it is independent of of Rolle's Theorem. The Second Mean Value Theorem for derivatives is generalized, with the use of determinants, to three functions and also generalized in terms of n-th order derivatives.

Observing that under certain conditions the tangent line to the curve of a differentiable function passes through the initial point, we find a new type of mean value …

A Fortran List Processor (Flip), Karl A. Fugal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A series of Basic Assembler Language subroutines were developed and made available to the FORTRAN IV language processor which makes list processing possible in a flexible and easily understood way.

The subroutine will create and maintain list structures in the computer's core storage. The subroutines are sufficiently general to permit FORTRAN programmers to tailor list processing routines to their own individual requirements. List structure sizes are limited only by the amount of core storage available.

Effects Of Starvation And Time At Stocking On Survival Of Stocked Rainbow Trout, Salmo Gairdneri, Marlin John Bricker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations of effects of starvation and time at stocking on the survival of catchable rainbow trout in two areas of Mammoth Creek in Dixie National Forest, Utah, were conducted from May 24 to December 6, 1969. Fish were starved for 6 days and 1 day and stocked in the morning (5:40-7:00 a.m.) and in the afternoon (1:45-5:30 p.m.). Out of 7,000 tagged fish stocked, 4,751 tags were returned by fishermen. The 6-day starved fish, stocked in the morning returned to the creel in highest numbers (1,240); followed by 1-day starved, afternoon-stocked fish (1,194); 6-day starved, afternoon-stocked fish (1,163); and 1-day …

Near Midair Collisions - The Extent Of The Hazard To General Aviation In Utah, Nevada, And Idaho, Robert B. Hulsman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis randomly sampled the general aviation pilot population of Utah, Nevada, and Idaho for the purpose of determining the extent of the near midair collision hazards in these areas. The conditions investigated were all possible situations associated with a flight, and all that could be readily answered on a data form without encountering bias in the study.

The thesis provided certain insights into what hazards are to be expected in the general aviation population of the three states under study. It also indicated as much as possible, what the causes were of the hazards and what actions could be …

Personality And Sports Preference In Women Majoring In Physical Education In Utah And Idaho, Carolyn Gay Barcus

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Personality traits of women majoring in physical education who preferred team sports, individual sports, or dance were compared, using the Minnesota Multiphasic Personality Inventory (MMPI).

No significant differences were found between the three groups on seven of the eight MMPI scales used. The dance group scored significantly more feminine on scale 5 of the MMPI than did either the team sports or individual sports group. Gymnasts and swimmers were significantly more feminine than was the track and field sub-group on this scale. The social and folk dance sub-groups and the non-majors sub-group were significantly more feminine than were the track …

Vocational Agricultural Curriculum Study In Utah County, Loren J. Phillips

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A questionnaire containing 69 curriculum areas for a vocational agricultural program in Utah County, Utah, and a proposed rating scale was mailed to 720 students who had graduated in vocational agriculture from eight high schools; to 14 agricultural teachers, and to 22 secondary school administrators and supervisors from Utah County; and to 28 other agricultural teachers selected at random in the state. Each person was asked to evaluate each curriculum area according to four suggested rating values: no value, has value, recommended, or essential.

The rating from each respondent was tabulated for each curriculum area by total points by numerical …

Selected Physio-Chemical, Microbiological, And Agronomical Studies On The Controlled Atmosphere Storage Of Sugarbeet (Beta Vulgaris) Roots, Vinod V. Karnik

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The post-harvest physiology of sugarbeet (Beta vulgaris) roots was studied during controlled atmosphere (CA) storage at 35° and 50°F. Zero, 3, 6 and 10% carbon dioxide and 5% oxygen concentrations were employed to investigate the most beneficial concentrations of gases. Under the experimental conditions beets were stored successfully for 200 days. The maximum beneficial effects of CA were observed under 6% carbon dioxide and 5% oxygen at 35°F. Regardless of storage temperatures, sucrose retention was highest in the beets stored under CA, compared to conventional refrigeration (CR). Other beneficial effects include less hydrolysis of sucrose to reducing sugars …

Cation Exchange And Transport In Soil Columns Undergoing Miscible Displacement, Sung-Ho Lai

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A mathematical model was developed to predict the exchange of one cation by another in a soil column undergoing one dimensional cation solution displacement under steady state flow conditions. The model allowed prediction of both the solution and exchanger phase concentration of the cation in question.

The model consists of a material balance equation which is a parabolic type partial differential equation. The assumption was made that equilibrium was reached instantaneously between the cations in the solution phase and the exchanger phase. This assumption reduced the material balance equation to a form that allowed numerical solution providing the data concerning …

The Effect Of Chemical Competition On Thermodynamics Of Bacterial Adsorption, Deorao R. Khairnar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this investigation was to study the effect of chemical competition on thermodynamics of bacterial adsorption. This was done using an experimental system consisting of Mendon silt loam soil as the adsorbent, Staphylococcus aureus as a common adsorbate and sodium chloride (NaCl), sodium lauryl sulfate (SLS), and peptone as competitive adsorbates.

The bacterial adsorption on soil both with and without chemical competition followed Langmuir type isotherms. From the equilibrium data, thermodynamic functions such as free energy, ΔF°, enthalpy, ΔH°, and entropy, ΔS°, were calculated. Observed positive ΔH° values indicated that the bacterial uptake in both noncompetitive and competitive …

The Use Of Defensiveness As A Covariate Of Self-Report In The Assessment Of Self-Concept Among Navajo Adolescents, Bruce Leon Arneklev

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study investigated the relationship between defensiveness scores and self-report scores as they interrelate in the assessment of self-concept and its change. Data were analyzed to determine if self-report scores adjusted by regression for defensiveness would be more congruent with a criterion measure than unadjusted scores.

A secondary problem was to evaluate the extent to which the self criticism scale on the Tennessee Self Concept Scale (TSCS) and the self-report vs. objective rating discrepancy method would identify the same individuals as defensive.

Samples were drawn from a population of adolescent Navajo boarding school students. A treatment sample participated in an …

Bench Marks From Which Economic Change Can Be Measured For An Altiplano Community, Roberto Julio Gonzalez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is designed to establish bench marks which will facilitate the measurement of impacts of new crop and livestock extension practices on the rate of community development of the village of Achica Bajo, Bolivia. Successful agricultural extension and community development programs require adequate data at the farm and community level. In the absence of a real appreciation for the levels of income and financial needs of the campesinos, it is difficult to institute farm policies such as land tax measures which will have the desired impacts and consequences as well as peasant acceptance.

The study examines human and …

An Economic Analysis Of Range Improvements On Saddle Creek Allotment And Curlew National Grasslands--With Special Consideration On The Effects Of Improvements On Wildlife Management, Jerry Russell Meyers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Range improvements for livestock were analyzed for the Curlew National Grassland and Saddle Creek Allotment. Increases in aum's which were a result of range improvements were calculated and valued at $4.00 each. Internal rates of return for both study areas were computed with a 15-year project life span for estimated grazing capacity and permitted grazing. Rate of return was then set at 10 percent to calculate project life span for both permitted grazing and estimated grazing capacity for the two areas.

Effects of range improvements for livestock on wildlife habitat were studied. Due to a lack of quantitative data, values …

Hydrologic Effects Of Contour Trenching On Some Aspects Of Streamflow From A Pair Of Watersheds In Utah, Robert Dean Doty

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Streamflow from two drainages of the Davis County Experimental Watershed, Utah, was evaluated with respect to changes in distribution and volume following trenching of one of the drainages in 1964. Fifteen percent of the Halfway Creek drainage was trenched according to established U.S. Forest Service methods. Twelve years of records before trenching and four years of records after trenching were analyzed.

Analysis of the annual streamflow, the low streamflow period, and the spring streamflow period indicated no significant change in either volume or distribution of streamflow as a result of trenching. This conclusion was further substantiated by supplemental data of …

An Analysis Of The Competitive Position Of Cattle Finishing In Utah And Selected Western States, 1969, Stephen L. Olsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah's cattle feeding industry was described by using both secondary and primary data. The primary data were collected through use of a personal interview survey.

Primary data were also collected in Idaho, while secondary data were used for Arizona, California and Colorado.

Intrastate analysis of feeding costs showed definite cost savings were achieved in all states through economies of size.

Interstate analysis of feeding costs showed Utah's larger capacity feedlots to be very competitive with larger capacity lots in other states.

1968 prices for both slaughter and feeder cattle were computed for each state. Prices in Utah were slightly lower …

Attitudes Of Selected College Professors And College Students In Utah Toward Labor Unions, Dwain Dee Stephenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The attitudes of selected university professors and students in Utah toward labor unions were obtained through the medium of a questionnaire.

Most students and professors favored anti-trust laws for unions, were against the abolishment of the right-to-work law, and were evenly divided in their feelings concerning the settlement of strikes by compulsory arbitration.

A majority of students and professors were against an increase in overtime pay and a shorter work week. Students favored and professors opposed a raise in the minimum wage.

Professors and students anticipated growth in union membership as a percentage of the labor force.

Except for professors …

An Economic Analysis Of Contour Furrows And Gully Checks On The Frail Lands Of Southeastern Utah, Karl A. Simonson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The upper Colorado River drainage system yields approximately 104,000 acre-feet of silt annually to the Colorado River. In an attempt to reduce the silt load, federal land management agencies have installed numerous land surface treatments. A study was conducted to measure the economic benefits of the land treatments near Cisco, Utah, and to compare them to the treatment costs and to develop predictive criteria for estimating the optimum intensity of treatment.

The economic evaluation was done in a benefit-cost framework and the criteria for estimating optimum intensity of treatment was done in a production-function framework.

The land treatments were found …

A General Study Of Closed Circuit Television Utilization In Selected Courses At Utah State University, Ted J. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis presents an evaluation of instructional television as used in four courses at Utah State University. The study is divided into four parts: first, student attitudes and reactions; second, faculty attitudes and reactions; third, the costs involved for the individual faculty members concerned, the academic department, the Radio-Television department, and the University as a whole; and fourth, recommendations concerning the future use of instructional television at Utah State University.

The four courses involved in this study were basic introductory courses in Political Science, English, Sociology, and Music.

The investigator found that student attitudes and reactions varied with each course. …

Transpiration And Dry Matter Response To Atmospheric Humidity, Matric Suction, And Fertility, Gordon Edgar Warrington

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Growth chamber studies showed that a relationship exists between transpiration and dry matter production of spring wheat (Tritiaum Aestivum L. var . Thatcher). A temperature of 27 C for a 16-hour day,and 21 C at night were used throughout the experiment. Relative humidities (RH) of 12, 25, 71, and 83 percent and matric suctions of 1, 3, and 9 bars were used a l ong with six fertility levels and a 20-day growing period. An equation was developed from previous equations by De Wit and Arkley to describe the transpiration ratio (Tr = mass of water transpired/mass of dry …

A Study Of Vocational Education In A Comprehensive High School With Recommendations For Vocational Education And Educational Specifications For Industrial Education At East High School, Salt Lake City, Utah, Frank B. Barrows

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study resulted from the selection of East High School in Salt Lake City to participate in a State Sponsored "comprehensive high school" project entitled "Project Success." The primary emphasis of the project was to encourage the development of vocational education as part of the high school curriculum.

The purpose of this study was to assist the Salt Lake City School District and East High School in the planning of vocational education programs and facilities by providing a rationale for vocational education within a comprehensive high school, making specific recommendations for vocational education programs, and by writing educational specifications for …

A Kinetic Approach To The Inactivation Of Zinc By Various Soil Constituents, Shingara S. Sandhu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The adsorption reaction of zinc onto prochlorite, pyroxene, and biotite minerals, from dilute solution (water) was studied under isothermal conditions by agitated nonflow experiment method. The equilibrium concentration of zinc in the solution was determined both by radioactive tracer technique and adsorption spectrophotometer methods. The data were collected at three temperatures.

The data were treated by the equation:

∂θ/∂t = k₁(1-θ)C - k_-1θ

where θ is the fraction of total surface coverage and C is the equilibrium concentration of zinc in solution, k₁ and k_-1 are the rate constants for the adsorption and reverse …

Seasonal Utilization Of Sago Pondweed By Waterfowl At Bear River Migratory Bird Refuge, Utah, Michael R. Sterling

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Seasonal utilization of sago pondweed (Potamogeton pectinatus L.) by waterfowl was studied at Bear River Miqratory Bird Refuge by comparing amounts of sago production on a series of plots on Unit Four. One plot was available to carp and waterfowl; one only to carp; and one available to neither.

The cage used to eliminate carp and waterfowl use of a plot caused a significant increase in sago production. The increase was attributed to less turbidity and less wind and wave action within the cage.

Carp distribution was limited to deep-water portions of Unit Four, a small area, and …

Production And Marketing Of Sheep On The Bolivian Altiplano: An Economic Analysis, Robert Scott Sly

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was undertaken to evaluate the general sheep marketing process in Bolivia, to determine the present economic structure of farm units belonging to Altiplano sheep producers, to analyze the economics of marketing Altiplano sheep at an earlier age, and to analyze the economics of using various local products as a supplemental sheep feed in Bolivia.

In general the Bolivian sheep marketing process is inadequate and inefficient because of lack of marketing information, poor producer-buyer contact, lack of commercial sheep transportation, slaughterhouses lacking in facilities and hygienic conditions, and apparently unattractive retail methods.

By selling their relatively unproductive male sheep …

A Study Of The Use Of Instructional Tv Programs In Logan City And Cache County Schools 1969-1970, Gary R. Saville

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A sampling of teachers from two school districts was interviewed to determine the amount of use and factors affecting utilization of ITV programs in the classroom.

The findings revealed a high percentage of teachers using ITV programs in their classes. Physical surroundings had the greatest influence on TV usage. Unavailability of TV sets and poor reception of the TV signal hamper teachers usage of ITV.

The teachers who used ITV incorporated the elements of pre-program preparation of the student: or what they were about to view and follow-up materials after the program.

Most of the teachers felt that ITV was …

Teaching Style And Student Use Of Analytic Concepts In Discussions Of Controversial Issues, R. Doyle Slater

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study, investigating teaching style, was conducted as part of a curriculum development and research effort aimed at teaching students conceptualized skills considered useful in the analysis of public controversial issues.

Approximately 220 junior students entering into an American history-problems of democracy two-year course sequence were taught the conceptualized analytic skills. Four teachers learned three teaching styles; namely, recitation, seminar, and socratic, The teachers used the three styles with small groups of students in discussions of case studies involving public controversial issues. In the discussions students were expected to use the analytic skills taught to them.

This study investigated whether …

Oral Interpretation Specialists In Utah Schools: A Proposal, Barbara A. Vincze

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated different methods of teaching literature to identify those techniques that result in either apathy or motivation. It was found that traditional literature teaching methods do not result in student motivation for increased reading, Instances were cited in which an oral approach to literature teaching was effectively used to achieve the desired results of student motivation, interest, and comprehension. Oral interpretation as a tool for motivation was discussed. Both empirical studies in that field and reading authorities' opinions were examined to discover the unique contributions oral interpretation could offer to literature teaching.

A specific recommendation for a way …

A Study Of Root Biomass In An Engeimann Spruce-Subalpine Fir Stand In Northern Utah, Larry O. Gadt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biomass of roots in the top 6 inches of soil profile was measured . This weight was then used in a stepwise multiple regression to test correlations between root biomass and above ground merisurational parameters.

Total biomass of all roots was 9822 ± 2810 pounds per acre oven dry. Spruce roots weighed 4417 ± 997 pounds per acre; of this spruce roots less than 0.125 inch diameter weighed 2023 ± 347 pounds per acre and biomass of spruce roots greater than 0.125 inch diameter was 2394 ± 8S3 pounds per acre. Total fir roots weighed Sl56 ± 2687 pounds per …

A Forecast Of Iranian Demand For Agricultural Food Products, Ivan F. Beutler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Domestic demand for Iranian agricultural food commodities was projected for 1970, 1975 and 1980. Demand for particular commodities was projected separately for Tehran (the capital city), urban Iran and rural Iran.

Income and population growth were the most significant explanatory variables in this long term projection.

Two cross-sectional family budget surveys, taken six years apart, provided consumption data for Tehran and urban Iran. A series of family budget studies provided Engel curve data for rural Iran.

The income effect was estimated for each food item by least squares regression analysis. The resulting income elasticities were found to be significantly different …