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Economies Of Size Of Cattle Ranches And Wheat Farms And A Comparison Of Management Alternatives For Marginal Cropland In Utah, John P. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Five long-run average cost curves were derived from questionnaire and interview data by connecting points corresponding to the per unit production costs and levels of beef output for four cattle ranch sizes (50, 150, 300, and 500 head of breeding cows). Analysis of the long-run average cost curves in combination with the 1968 weighted Utah beef price revealed that all four ranch sizes studied are capable of meeting cash costs. If the goal of the ranch operator is to meet both cash costs and depreciation, a cattle ranch supporting 105 breeding cows is the minimum size necessary. If provision is …

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 Short-Term Counseling And Tutoring On Reading Achievement, Study Skills, And Personal Adjustment, Michael Lynn Maughan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to investigate more completely the effects of counseling and tutoring on reading achievement, study skills, and personal adjustment within the context of a college reading and study skills program. The study consisted of three phases which corresponded with the three regular school quarters.

The subjects used in Phase I of this study were 12 college students who voluntarily registered for a reading and study skills class at Utah State University during the 1969 fall quarter plus 40 students who transferred into the class from a remedial study class. In Phase II, there were 45 students who …

Urban Land Use--A Geographic Case Study: Cedar City, Utah, Rex J. Hulet

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The purposes of this study are: ( 1) to better understand the impact that accelerated urban growth is having on the city as a place for man to live and work; (2) to gain knowledge of the interrelationships between urban planning, zoning, and land use; (3) because most land use studies that are available have been made on cities of more than 50,000, this study will attempt to acquire some knowledge of land utilization on a small city of less than 10,000 inhabitants; (4) to gain firsthand experience in compiling a land use survey and map; and (5) to draw …

Estimating The Rainfall-Runoff Characteristics Of Selected Small Utah Watersheds, Clive H. Walker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Runoff and rainfall data have been taken from three high mountain Utah watersheds and subjected to runoff to rainfall comparisons. The resulting Q/P ratios have been compared to the average volumes of runoff curve numbers (CN) computed from this data for each watershed. Runoff curve numbers were also estimated on the basis of the soils and vegetation data available for the watersheds.

An attempt has been made to estimate the watershed lag characteristics by computing synthetic hydrographs for successively larger values of time to peak estimates until the best fit comparison was achieved between the snythetic and the actual hydrographs. …

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 …

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 …

The Role Of Stomata In Gaseous Fluoride Injury To Plants And Several Enzymatic Changes Associated With That Injury, Bachettira Wthappa Poovaiah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of fluoride fumigation on water relations and several enzymes of Glycine max and Pelargonium zonale plants were studied.

Glycine Max leaves absorbed 600 parts per million fluoride from an atmosphere of 15 parts per billion fluoride during 96 hours fumigation. Lower, fully expanded leaves were always more severely damaged than the upper younger leaves. In day versus night fumigation experiments, although daytime fumigated plants absorbed less fluoride than continuously fumigated plants, they had two to three times more fluoride than the nighttime fumigated ones and also exhibited more severe damage.

Transpiration of fumigated plants decreased markedly, presumably due …

Electronic Analog Computer Hydrologic Simulation Of The Upper Bear River Basin, Mohammed A. Basha

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

OF the total precipitation falling on watersheds throughout the world, an average of approximately 85 percent returns directly to the atmosphere through evaporation and use by mountain vegetation. The remaining 15 percent moves from the watersheds as runoff and becomes available in the valleys to be used by man for irrigation, industry, recreation, and many other requirements in recent years has led to an increasing need for efficient management of available water resources, and in this regard computer modeling or simulation has proved to be a powerful tool.

The study described herein involves simulation of the hydrologic system of the …

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 …

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 Secant Law For Sporadic E, Ruey-Yuan Han

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The secant law is the relationship between the frequencies of a vertically incident wave and an obliquely incident wave that are reflected from the same level (i.e., density) of a stratified ionosphere. This thesis investigates the validity of the secant law applied to sporadic E.

Sporadic E data from two backscatter sounders and one vertical incidence ionosonde located in Japan were studied to test the validity of the secant law. The B-scan photos of the backscatter sounders were searched for E_s patches which were then compared with the sporadic E parameters defined for vertical incidence ionograms.

Finally, two theoretical …

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 …

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. …

An Application Of Statistical Decision Theory To Farm Management In Sevier County, Utah, Suwaphot Lakawathana

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The major purpose of this study is to present selected empirical results of a study employing decision-making theory as a framework for considering decision making under risk. The particular problem involves choices between alternative crop rotations for Sevier County farmers. The study demonstrates the usefulness of the Bayesian theory that gives more than a point estimation.

A multiple regression model using two linear terms was employed to determine the influence of snow pack and reservoir storage on water availability for irrigation purposes during July, August, and September.

The Bayesian approach was employed. The optimal action or decision was first determined …

The Effect Of Freshman And Sophomore College Students' Impressions Of Counseling On Awareness And Use Of The Utah State University Counseling Center, William Richard Wood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to provide information about: (1) Utah State University students' impressions of counseling, (2) the sources of these impressions, (3) students' awareness of the University Counseling Center, and (4) the effect of the foregoing factors on student use of the counseling facilities.

The sample consisted of a group of 107 freshmen and 43 sophomores randomly selected from the general psychology courses at Utah State University, Logan, Utah. Student information was obtained by a questionnaire and students' impressions of counseling were assessed by a semantic differential. The data were analyzed by t-test, chi-square and analysis of variance.

The …

Attitude Toward The American Political System Of Thai Students Attending Utah State University, Thira Rojanapornpant

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to measure the attitudes of Thai students at Utah State University toward the American political system, favorably or unfavorably.

The method of this study was an opinion or attitude survey. Copies of the questionnaires were personally delivered to and collected from Thai students by the writer. Ninety-four questionnaires or 97.92 percent of the total ninety-six were returned

The conclusion of this study indicated that: Thai students' attitudes toward the American political system were more favorable than unfavorable. Moreover, the period of time spent in the United States caused little difference in change of their …

An Evaluation Of The Collegiate Experience Of The Usu Student, Mark G. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The American College Testing Program's Institutional Self-Study Survey was used in this study to consider USU students' goals, achievements, and evaluations of their collegiate experience. Goals included were students' educational majors, vocational plans, final college degree sought, and the relative importance attached to attaining Vocational, Academic, Social, and Non-Conventional goals. Achievements studied were both intellectual and nonacademic out-of-class accomplishments, and students' perceived progress in achieving Intellectual-Humanistic, Group-Welfare, Scientific-Independent, and Practical-status outcomes of their collegiate experience. Student evaluations of instructors, college services, selected policies, practices, facilities, and required courses were also studied. National normative data were compared with USU data in …

Bayesian Estimate Of System Reliability, Naresh Shah

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

A Bayesian estimate of reliability for each component in the system of n-components, each exponentially distributed, is developed which utilizes the basic notion of loss in estimation theory. Here we assume that each component is independently dis­tributed. In reliability estimation, the loss associated with over­estimation is usually greater than the loss associated with under­estimation; and hence loss function can be a very useful tool. The prior distribution and loss function of reliability considered in this paper are flexible to be compatible with other situations in which reliability estimates are required. When the loss function is symmetric and no prior information …

Hydro-Electric Power In Brigham City, Utah: Its Growth And Development, Reed Anderson Olsen

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

One of man's most useful servants is electrical power. Technological advances have made it the greatest source of industrial power we have in the world today. The evolution of electrical power paralleled the development of our great American economic system. Like the development of mechanization, the growth of power was a long, drawn-out process. Man power was replaced with water power; water power was replaced with team , electricity, oil and natural gas. Eventually these sources may be replaced with atomic power.

Although the steam engine was a vast improvement over water power, there continued a need for transmitting energy …

A Study Of An Unintentional Shutdown (Scram) Problem In The Operation Of The High Flux Isotope Reactor, Cheng Ping Wu

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory experiences occasional operating difficulties caused by temporary low voltage conditions on its main power feeder line. The low voltage causes the shutdown of one or more of the three primary coolant pumps. When two of these pumps are shut down, the capacity of the cooling system is reduced to the point where the reactor is scrammed due to a high inlet coolant temperature.

This study was made to determine the cause of the high inlet temperature when operating with one primary coolant pump and to suggest possible changes …

A Study Of Flooded And Rain Infiltration Relations With Surface Ponding, Yehia Z. El-Shafei

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The non-linear partial differential equation (combination of Darcy's law and continuity equation) has been used in this investigation to predict the flooded infiltration through soils possessing appreciable amount of clay and initially drier than its field capacity. One of the most important assumptions made in solving the differential equation is that the capillary conductivity-moisture content relationship is unique for each initial moisture content computation due to the different reaction of clay minerals with different initial moisture contents.

Mathematical equations were also derived to predict:

1. The rate of the wetting front advance, prior to the occurrence of surface ponding, taking into …

Irrigation Water Management Potential In The Bear River Delta, Tom Al Austin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this study were to evaluate the present irrigation efficiencies of the Bear River delta area of northern Utah and to propose a set of management proposals to improve the irrigation efficiency. In order to evaluate the present use, all pertinent data on the water resources of the Bear River delta had to be assembled and analyzed.

A hydrologic budget is a method used to account for all inflows, outflows, and changes in storage within a given area. In this study, all inflows and changes in storage were evaluated and the outflow was predicted. In this manner the …

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 …

The History Of Cokeville, Wyoming, Errol Jack Lloyd

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cokeville, Wyoming, is situated at the confluence of the Bear River and Smiths Fork valleys in southwestern Wyoming. Settled in 1874, the Cokeville area has experienced much the same political, economic, and social developments typical of other small rural towns in the western United States; but it is unlike neighboring settlements in that it was not dominated by the Church of Jesus Christ of Latter-day Saints during its early growth.

Depending upon an agricultural economic base, Cokeville has been the center of the Lincoln County sheep industry since the early 1900's. Mining has played a minor part in the economy, …

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). …

Effects Of Water Hardness On Processed Quality Of Carrots, Sweet Cherries, And Apricots, Jack C. Chiang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Honey Sweet carrots were canned with Ethyienediamine tetracetic acid (CaNa₂EDTA) and Sodium hexametaphosphate (Ha-HMP) at five different water hardness (0 , 20, 40, 80, 160 ppm of calcium and 20 of magnesium) , then stored at temperatures of 70 and 100 F. Evaluations were made at sixty-day i intervals for six months. Firmness and color degradation decreased significantly when water hardness or storage time increased. Under storage at 100 F and 0 hardness of water, the decrease of color and firmness was constantly accelerated.

When hard water (above 80 ppm or below 40 ppm) was used for …