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Quaternary Geomorphic Features Of The Bear River Range, North-Central Utah, Jerome Vernon Degraff

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Bear River Range, in north-central Utah, contains a variety of geomorphic elements influenced by the geologic setting and events. Controlling factors of the geologic setting include: (1) a syncline (west) and an anticline with a crestal graben (east) within the part of the mountain range studied, and an adjacent graben valley along the west side of the range; and (2) bedrock of Precambrian and Paleozoic age in the core of the range, predominantly of shallow-marine carbonates and covered in the graben by shaly and conglomeratic rocks of early Cenozoic age, with fanglomerates and lake deposits of later Cenozoic age. …

Feeding Behavior Of Pen Reared Mule Deer Under Winter Range Conditions, Michael A. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study examined the feeding responses of mule deer to a system of spring livestock grazing. The specific purposes were 1) to determine botanical composition of diets selected by mule deer on a winter range subjected to previous spring grazing by sheep compared to one with no sheep grazing and 2) to develop a basis for predicting selection of individual plants by deer, based on physical characteristics of the plants and the species and physical proximity of associated plants.

The study was conducted within the framework of a completely randomized experimental design with two treatments. Variables controlled for each unit …

Forage Selection And Nutrition Of Sheep And Goats Grazing In The Tunisian Pre-Sahara, Rudolfo Ricardo Griego

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nomadic pastoralism has been the traditional method of utilizing grazing resources in arid and semi-arid regions of Africa. However, increased sedentarization accompanied by growing human and animal populations during the past two decades is thought to be accelerating the desertification process, or desert expansion. The specific interactions of the grazing animal with this process has been speculated upon but not studied in detail. A comparative study was initiated during the spring grazing season of 1974 to determine sheep and goat nutritional and production responses, as well as patterns of vegetative selection and utilization under the pastoral system currently employed in …

Some Characteristics Of Female College Students Who Select Academic Majors In Fields Of Exact Science And Non-Exact Science: A Longitudinal Follow-Up, Paul David Warner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The present study, conducted in 1974, was a longitudinal follow-up of two groups of female subjects who had participated in an earlier study (Wright and Johnson, 1960) while the subjects were university students. One group of the subjects had majored in fields considered at that time to be traditionally feminine majors, i.e. social sciences, art, music, education, homemaking, etc. The other group had majored in fields of exact sciences, which at the time were considered more traditionally masculine. The purpose of the present study was to determine whether differences noted in the 1960 study will exist between these two groups …

The Effects Of Age And Socio-Economic Status On The Diagnosis And Educational Treatment Of Mildly Handicapping Conditions Of School Children, John W. Kelsey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biasing effects in labeling and recommendations for educational services when factors of socio-economic status and age are manipulated were studied using 50 certified school psychologists in Utah. Subjects received case report information about IQ, behavior and achievement which described a school child in need of services within one of four conditions, Age 7 Socioeconomic status (SES) High, Age 7 SES Low, Age 13 SES High, and Age 13 SES Low. Other potentially biasing variables such as ethnic background, and sex were held constant. No evidence of bias could be found when dependent measures of labeling, recommendations for educational services, and …

The Identification Of Characteristics Of The Hyperactive Child Through Objective Evaluation, Joan Elaine Owen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For many years adults have been concerned about the hyperactive child, who acts out in a boisterous manner, who is perhaps too physically stimulated and who is often perceived as not meeting adult expectations. It seems important to identify the characteristics of the hyperactive child in an objective and understandable manner so that parents, teachers, medical doctors, and mental health practitioners can determine more adequate prescriptive treatment programs.

The purpose of this study was to adjudge whether children referred for psychoeducational evaluation by pediatricians as hyperactive exhibit behavioral characteristics which, when evaluated by standardized tests, are significantly different from those …

The Use Of The Delphi Technique To Effect Decisions Concerning The College Level Examination Program By Higher Education Representatives, Terry Joseph Orme

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the use of the Delphi technique in educational decision making.

Utah State institutions of higher education employ the College Level Examination Program (CLEP) to award credit in lieu of course work. However, since no uniform policies existed among them, 145 persons were selected on a representative basis to recommend a norming group to use for performance comparisons, the standard by which to judge CLEP performance, and the levels for maximum and minimum credit.

The Delphi technique, which employs a round-by-round questionnaire with feedback procedure, was used for six rounds to obtain sufficient consensus on the three aforementioned …

Adjustment Of Persian Students At Utah State University, Homa Aflatouni

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Social adjustment of Persian students in terms of their social participation with Americans is analyzed by correlation and multiple regression analyses with six independent variables. The six independent variables are: education, attitude, time, English, social class, and religion. The results of correlation and multiple regression analyses support some of the hypotheses. The significant finding is that the level of education the Persian students completed before coming to the United States, their attitudes toward the Americans, and the length of stay in the United States are the most important factors while other variables are much less useful.

An Economic Analysis Of Management Alternatives For Utah Cattle Ranches And Potential Effects On Beef Production, David B. Hewlett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The high feed grain prices of the last few years and the resulting high prices for heavy feeder cattle relative to lightweight feeder calves may provide economic incentives to market cattle from rangelands as yearlings. A majority of the economic studies investigating the profitability of retained ownership of beef calves to sell as yearlings have used a budgeting technique to compare a straight cow-yearling operation retaining all calves, to a straight cow-calf operation selling all calves. In this study linear programming was used to develop an optimum combination of various livestock marketing alternatives for maximizing net ranch income.

Two typical …

Utah Ski Area Use: A Descriptive Analysis, Timothy L. Silva

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Use of ski areas in the Wasatch Mountains of Utah has increased rapidly over the last two decades. To facilitate planning and management of programs and facilities designed to meet this need, public and private organizations should have information which delineates the factors affecting use of these ski areas. The objectives of this study were therefore: (1) to determine what factors were responsible for variation in use at Utah ski areas, (2) to determine the relative importance of these factors in explaining ski area use, (3) to ascertain if these variables explaining use differ significantly between two ski seasons, (4) …

Development Of A Water Quality Model Applicable To Great Salt Lake, Utah, Craig T. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The development of a model capable of predicting the long term (seasonal) distribution of water quality constituents within Great Salt Lake was undertaken as a portion of the ongoing Great Salt Lake project at Utah State University. The overall goal of the project is the development of a modeling framework to assist the relevant decision making bodies in the comprehensive management of the Great Salt Lake system. Phase I of the project provided the overall structural framework for management of the Great Salt Lake system, identified data needs, and established priorities for the development of submodels for incorporation into the …

Attitudinal Effects Of Unified Mathematics At Hillcrest High School, Willis Dean Samuels

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate the relationship between ( 1) attitude as expressed on Aiken 1s Mathematics Attitude Scale between students who had been taught Unified Mathematics and similar students who had not been taught Unified Mathematics. The sample consisted of 37 students in the treatment group and 46 students in the control group.

The students were given a copy of Aiken's Mathematics Attitude Scale. The responses were scored by the researcher. Seven null hypotheses were examined by calculating the means and standard deviations of each group. Comparison of the posttest means was performed by using …

Population Dynamics And Harvest Of Canada Geese In Utah, John Tautin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A twenty-one year (1952-72) accumulation of banding data for Canada geese in Utah was studied to determine the distribution and chronology of the harvest of the geese and the effects that hunting regulations have had upon harvests and population parameters. The banding data were also used in an attempt to develop a population model capable of predicting population trends and desirable survival rates.

Within Utah, the bulk of the annual harvest (78 percent) takes place in the northern portion of the State in the vicinity of the Great Salt Lake marshes. In Northern Utah the harvest peaks on the opening …

An Economic Appraisal Of Reuse Concepts In Regional Water Supply Planning, Rangesan Narayanan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Using a conceptual model of a water supply firm, the necessary conditions for production and market efficiency are derived when renovated wastewater is considered as a potential water resource. The nature and extent of the supply augmentation due to recycled reuse is demonstrated using classical optimization techniques. Three stages of short-run supply corresponding to no recycling, partial recycled reuse and complete recycling of all reclaimable water are identified through appropriate Lagrangian Multipliers as well as graphical techniques.

A mathematical programming model is structured to determine the optimal water resource allocation and pricing policy for Salt Lake County. By maximizing the …

Water Allocation For Future Development In The Uintah Basin, David W. Mills

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The major objectives of this study are to determine whether or not future needs for water in the Uinta Basin can be satisfied by the present quantity of water produced by the hydrology of the Basin.

The specific objectives are as follows:

1. To determine the present demand for water in the Basin.

2. To determine the present annual quantity of water produced by the Basin.

3. To project the changes in the demand for water in the Uinta Basin resulting from energy, agricultural and other development.

4. To project the changes in the quantity of water available to satisfy …

Sensitivity Analysis Of Surface Deposition In A Numerical Model Of Atmospheric Dispersion, Jackie Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Profiles of height-dependent diffusion which accommodate site-specific diffusivities were produced. A numerical model was adapted to incorporate the profiles. The model represented three-dimensional steady-state advection and diffusion of aerosols from an elevated point source. Sorption effects were simulated with surface attachment coefficients greater than unity. This proved effective in depleting the plume differentially upward from the surface.

A Rationale For Furrow Irrigation System Design And Management, Safa Noori Hamad

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mathematical and computerized models are developed to design and optimize furrow irrigation systems. The optimization process starts with land grading design, if any is needed, followed by a prediction of maximum non-erosive furrow stream size allowed on a given soil and the associated furrow-advance function. An average depth of application per irrigation is then assumed from which the wetting pattern along the furrow and the amounts of runoff water are predicted. A design of an Irrigation Runoff Recovery System, IRRS, is then executed, if desired, and system cost is determined. Using the predicted wetting pattern and the appropriate Crop Production …

The Effects Of A Problem Solving Model As An Alternative In The General Mathematics Curriculum, Leo Edwards Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to evaluate an approved problem solving module as a model for use in the general mathematics curriculum, and assess its effectiveness in bringing about literacy in and a better attitude toward mathematics. Included in the module were topics on fundamental operations, fractions, decimals and percents, and problem solving. Specifically, the module focused on concerns of the National Assessment of Educational Progress (NAEF), that is the inability of students and young adults to use numbers skillfully enough to meet the demands of a modern society.

The sample used in this study consisted of eight intact …

Interpretation And Application Of Elements Of Differential Geometry And Lie Theory, James R. Brannan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Basic concepts of differential geometry and Lie theory are introduced. Lie transformation groups are applied to linear systems of differential equations and the problem of describing rigid body orientation. Linear Hamiltonian systems are then treated as a Lie system of differential equations. This theory is applied to a particular Hamiltonian system arising from a problem in control theory, the linear state regulator problem.

Positive Controllability Of Systems With Nearly-Non-Negative Matrices, Theodore Sonne Perry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper analyzes the controllability of constant coefficient linear differential equations and presents two proofs of a major theorem on controllability. Properties of nearly-non-negative matrices are discussed and in particular a theorem on the behavior of the exponential matrix of nearly-non-negative matrices is proven. These results are then used to prove that the reachable set for systems with nearly-non-negative matrices is limited to the positive hyperoctant.

Shooting Method For Two-Point Boundary Value Problems, John D. Baumann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to develop the shooting method as a technique for approximating the solution to the two-point boundary value problem on the interval [a,b] with the even order differential equation {i.e. n is even)

u⁽ⁿ⁾(t) + f(t, u(t), u⁽ⁱ⁾(t, ),..., u^(n-1)(t)) = 0

and boundary conditions

u(a) = A

u(b) = B

and with at most n-2 other boundary conditions specified at either a or b. The basic proceedure will be illustrated by the following example.

Consider the two-point boundary value problem (0.1) (0.2) (0.3) with the additional boundary conditions …

The Supply Of National Park Products: A Theoretical And Applied Analysis, Judith Carol Houston

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The central objective of the investigation in this study is to determine a means of attaining an economically efficient combination of resources to maximize the level of services provided by a national park under the conditions of a limited budget, a constrained production possibilities set, and a limited availability of inputs. First, a theoretical model is built which elucidates the collective and private good natures of national park products. The theory identifies the optimality criteria for the provision of park products in a system of limited resources. It is noted, however, that the theoretically determined optimal solution cannot be expected …

A Follow-Up Study To Determine The Employment Status Of Utah State University Distributive Education Graduate, 1969-1973, Robert K. Shaw

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

Those persons involved with the curriculum in the Business Education Department at Utah State University need to be kept informed of the current location and employment status of graduates from the distributive education program at that institution. This will enable them to keep abreast of the needs of the program for training teacher-coordinators and others to be employed in the field of distribution. If the graduates are employed in distributive education positions, a knowledge of their attitudes toward the curriculum they followed at the university will help in evaluating and upgrading to meet the needs of a changing world. Only …

Some Aspects Of The Salinity Of Mancos Shale And Mancos Derived Soils, James C. Whitmore

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Initial studies to determine the thermodynamic solubility product (K_sp) of gypsum and CaCO₃ were conducted. The influence of different electrolyte salts at different concentrations upon the solubility of gypsum and CaCO₃ was then tested. Analytical data was utilized in conjunction with a computer to calculate the activity of CaCO₃ and gypsum, the ion pair concentration and the solubility product. Indifferent salts increased the solubility of gypsum and CaCO₃, and salts with a common ion decreased the solubility of gypsum and CaCO₃.

Lithium was found to be the dominant monovalent cation present …

The Accuracy Of Soil Mapping Units Of Certain Pachic And Cumulic Soils In Northern Utah, Behjat Badamchian

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine the accuracy of mapping of pachic and cumulic soils in Cache County. The soil maps that were used for this study as the basemap were the Atlas sheets of the published soil survey of Cache County.

Five map units from Mendou, Nebeker, Avon, Hendricks and Winn which include almost 52 percent of the pachic and cumulic soils in the survey area were selected for this study. These five soils cover large areas when compared to other soil series and they are distributed throughout the county. All these map units were recognized as …

Modeling Spring Wheat Production As Influenced By Climate And Irrigation, V. Philip Rasmussen Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A model has been developed that predicts spring wheat grain and dry matter yield. Preliminary tests show very favorable results when predicting grain yield in two different climatic regimes, one being a dryland and another being an irrigated area. The strengths of the model lie in its simplicity, relatively available input data, and low computer processing time cost. Weakness of the model stem from the assumptions that allow its simplicity. The basic assumption in the model is that grain and dry matter yield can be related to the ratio of actual to potential transpiration, computed for each of five phenological …

Albedo Of The Earth's Surface -- A Comparison Of Measurements Taken On The Ground And From Flying Platforms, Frank D. Eaton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The main objectives of this study were to develop the intricacies of reflected solar radiation from different natural surfaces and to show comparisons between values sensed in space of emergent radiation to ground values obtained from accounting for anisotropic reflection and estimating the effect of the intervening atmosphere. Thus, this study demonstrated that a prior knowledge of the angular distribution of reflected radiation allows determining the true hemispherical reflected radiation from a narrow field of view instrument such as found on a flying platform. Measurements for determining the indicatrices were made from a tower-mounted Nimbus MRIR and, in one case, …

A Model For Designing Surface Drainage Systems In Nearly Level Agricultural Lands, Rafael Maria Rojas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The increasing demand for reclamation of periodically waterlogged nearly level agricultural lands in humid tropical areas and the hazard of soil deterioration and soil moisture balance disturbances by current land forming methods suggests the need for investigations of new surface drainage design procedures. This report presents a rainfall-runoff model for simulating hydrographs from ungaged agricultural plots. The model is based on routing procedures and utilizes common soil and hydrologic data. Tests made with several small agricultural water-sheds indicate that the model could be a useful tool in simulating surface drainage design.

Input data for the model consists of (a) rainfall …

Nitrogen Fertilization Studies In Dryland Winter Wheat And Potential Nitrogen Losses From The Soil At The Blue Creek Experimental Station In Northern Utah, Subhawat Intalap

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study compared the effects of nitrogen sources on the available inorganic soil nitrogen, nitrogen movement, nitrogen losses, and wheat yields when nitrogen fertilizers were applied to soil planted to dryland winter wheat at the Blue Creek Experimental Station in northern Utah.

In the fall 1973 soil samplings, the fertilizers producing the largest mineral nitrogen contents in the 0-30 cm soil depths were ammonium nitrate >ammonium sulfate > S-coated urea, when they were broadcast at the practical rate of 56 kg N/ha. There was no increase in the mineral nitrogen at the dee per depths in the fall or at any …

Irrigation Scheduling Program For Sugarcane, Terence L. Pearse

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An estimate of potential evapotranspiration is acquired to implement an irrigation scheduling program. Four equations, which estimate potential evapotranspiration (evaporation) were evaluated for prediction of Class "A" Pan evaporation. The equations used were Penman's combination equation, the Jensen-Haise temperature and radiation equation, and two of the Christiansen-Hargreaves polynomial regression type equations. Measured and calculated radiation was used together with two values of albedo. Four years of daily climate data from Rhodesia was evaluated by general linear regression methods.

Despite the significant variations between the four annual regression lines of each equation, the use of confidence intervals indicate that the Penman …