Digital Commons Network^™

Ecology Of Aroga Websteri Clarke In Curlew Valley, Utah-Idaho, Reed L. Kirkland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ecology, life history, and population dynamics of the sagebrush defoliator, Aroga websteri Clarke, were studied in the field and laboratory. The defoliator has one generation a year at the Curlew Valley site. It overwintered in the egg stage and passed through five larval instars. Ten parasite species attacked the defoliator at the study site. Four species, Orgilus ferus, Phaeogenes sp., Spilochalcis leptis, and Apanteles cacoeciae, contributed over 75 percent of the total incidence of parasitism. Parasitism ranged from 20 to 76 percent in 1971, but only ranged from 6 to 29 percent in 1972. This decrease …

A Study Of The Effects Of Water Institutions On Planning And Management Of Water Resources In Utah, Donald H. Mclean

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One area of research that has been somewhat neglected in water planning programs and water development is that pertaining to water law and water institutions. Over the years each state has developed a complex system of water law and organizations for the allocation and distribution of water. The usual role of these institutions is one of orderly development and the efficient use of the water resource. However, in many cases water law and institutions have imposed serious constraints upon the planning and the most efficient use of a valuable resource.

This study, through historic research, has attempted to define these …

Selecting The Best Linear Model From A Subset Of All Possible Models For A Given Set Of Predictors In A Multiple Linear Regression Analysis, David L. Jensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sixteen "model building" and "model selection" procedures commonly encountered in industry, all of which were initially alleged to be capable of identifying the best model from the collection of 2^k possible linear models corresponding to a given set of k predictors in a multiple linear regression analysis, were individually summarized and subsequently evaluated by considering their comparative advantages and limitations from both a theoretical and a practical standpoint. It was found that none of the proposed procedures were absolutely infallible and that several were actually unsuitable. However, it was also found that most of these techniques could still be …

A Two Sample Test Of The Reliability Performance Of Equipment Components, Miki Lynne Coleman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to develop a test which can be used to compare the reliability performances of two types of equipment components to determine whether or not the new component satisfies a given feasibility criterion.

Two types of tests were presented and compared: the fixed sample size test and the truncated sequential probability ratio test. Both of these tests involve use of a statistic which is approximately distributed as F.

This study showed that the truncated sequential probability ratio test has good potential as a means of comparing two component types to see whether or not the …

Relationships Between Attitudes And The Acquisition Of Certain Teaching Behaviors Using Microteaching, James Allen Lowe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to investigate the effect of microteaching upon pre-service teacher attitudes and the acquisition of certain teaching skills. It was hypothesized that (i) microteaching would have an effect upon the acquisition of certain teaching skills, (ii) microteaching would have an effect upon pre-service teacher attitudes, (iii) particular attitudes would be significant on subsequent acquisition of certain teaching skills, and (iv) there would be a correlation between change of teacher attitudes and the change in certain teaching skills following a microteaching program.

The subjects were students of varying class levels and academic majors enrolled in an …

Petrology Of The Ordovician Swan Peak Formation, Southeastern Idaho And North-Central Utah, Warren J. Schulingkamp Ii

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Swan Peak Formation in southeastern Idaho and north-central Utah is a sedimentary unit consisting of orthoquartzite, sandstone, siltite, shale, and limestone. The formation is divisible into three members, and the lower two members each are divisible into two informal lithologic subunits.

The lower member consists of a lower subunit of gray, calcareous sandy siltite composed of subangular to subrounded quartz grains cemented by quartz overgrowths, calcite, or iron oxide, and an upper subunit of black shale with minor interbedded silty quartzose sandstone and biomicrite (limestone).

The middle member consists of a lower subunit of interbedded pale green shale and …

Stratigraphy And Environmental Analysis Of The Swan Peak Formation And Eureka Quartzite, Northern Utah, George Gregory Francis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Swan Peak Formation in north-central Utah thickens westward, from zero feet near Logan to 687 feet in the Promontory Range. The unit is subdivided into three distinct members: 1) A lower member of interbedded shales, limestones, and quartzites; 2) A middle member of interbedded shales and brown quartzites; and 3) An upper member of white quartzites. The Swan Peak thins southward toward the east-west-trending Tooele Arch in the area of study; this thinning probably reflects both lesser deposition and greater subsequent erosion there than elsewhere. The lower member in northern Utah probably was deposited in shallow-shelf and/or traditional shoreface-shelf …

Inferred Values Of Clothing Related To Adjustment Among Pregnant Women, Violet Elizabeth Dowdeswell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The first objective of this study was to investigate the adjustment of women during pregnancy through various indices, namely: level of anxiety, attitudes to pregnancy, and perception of body-image boundaries, and to investigate the relationship among these indices. A second objective was to determine if a significant rank order of values inferred through clothing exists among pregnant women, and to relate these values to the measures of adjustment. The comparison of women by trimester and gravidity on the measures of adjustment and the inferred values, was a third objective.

The theoretical framework proposed that adjustment to the stress of pregnancy …

An Economic Analysis Of Nitrogen And Phosphorus Fertilization On Several Utah Range And Meadow Sites, Thomas M. Quigley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Previous research has shown that rangeland forage production can be increased through fertilization. A study was conducted to determine if fertilization of various Utah range sites was economically feasible. Six range sites were selected for analysis. The addition of nitrogen increased forage production on three sites. Phosphorus had no effect in increasing production. Production functions of the form, Y = a + bN - cN² , where Y is pounds of forage per acre and N is pounds of nitrogen per acre, were estimated for both fall and spring applications. Using current prices of Y and N the optimum …

Development Of An Interpretive Document For The Bear River Migratory Bird Refuge, William R. Burbridge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since its inception, the National Wildlife Refuge System has been administered for management and restoration of habitat essential to the propagation and welfare of resident and wintering wildlife species. Acquisition of additional System units has been primarily directed to the benefit of the migratory bird resource. As of July 1, 1968 about 250 of the 321 refuge units were managed for the waterfowl resource (U. S. Department of Interior, 1968a). However, this growth of the System has been accompanied by an increase in recreational use of the refuges. In 1962, Public Law 87-714, the Refuge Recreation Act, was passed to …

An Analysis Of Factors Influencing Farm Family Residence Location, Larry Keith Bond

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Census data reveal that the percentage of farm operators in the United States that live off-farm is increasing. It has been suggested that this may be due largely to a shifting of residence off-farm. An analysis of factors influencing residence of farm families has been done at the national level. In addition, a cross section analysis of county data within states has been attempted. However, a purely local analysis is needed to pick up the variation obscured by aggregate data. The purpose of this study is to identify and evaluate variables that might be expected to influence residence location, and …

Evaluation Of The Filter Paper Method For Estimating Soil Water Potential, Samir Al-Khafaf

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The filter paper method for measuring soil water potential was evaluated. The method was calibrated using salt solutions (-1.4 bars to -22.4 bars), sample chamber psychrometer (-1 to -50 bars), pressure plate (-0.1 to -15 bars) and soil column at equilibrium (0 to -0.2 bars). It was found that the absolute temperature had little effect on the predicted soil water potential, but a temperature variation had a large effect. It was found that the temperature fluctuation must be small. The predicted water potential was influenced by the type of contact of the soil with the filter paper. It is suggested …

A Survey Of Awareness Programs Regarding Infant Hearing Loss, Ronald Rao Bateman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Hearing conservation specialists are aware of the need for early identification and diagnosis of impaired hearing. This awareness of need has led to the development of several identification methods in the United States. Public awareness programs designed to inform laymen and professionals of the danger signals of infant hearing impairment currently are coming into focus, both as a separate entity and as part of total identification procedures.

Current public awareness programs regarding infant hearing loss were surveyed in the present study and recommendations on a model awareness program of this type were obtained. Fifty-one hearing conservation specialists participated in the …

A Study Of The Relative Importance Of Training On The Employability Of The Mentally Retarded As Rated By Employers And Educators In Cache County, Utah, John F. Hurst

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Relative differences in attitudes between educators and employers concerning training of the mentally retarded within Cache County were studied by analyzing their responses to 40 questions dealing with Academic, Personal, Social, and Vocational Skills.

Academic Skills were found to show no statistical significance in terms of attitude differences expressed by educators and employers as they relate to successful employability criterion.

Personal Skills were found to show no statistical significance in terms of attitude differences expressed by educators and employers tested as they relate to successful employability criterion.

Personal Skills were found to show no statistical significance in terms of attitude …

Optimal Allocation Of Irrigation Water: The Sevier River Basin, Harold H. Hiskey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Economic efficiency criteria are used to optimally allocate irrigation water in a closed river basin (Sevier River). The Basin is geographically divided into four subbasins. Linear programming model were developed for each of the four areas and used to generate value of marginal product schedules by parametric variation of water during the late irrigation season (after July 1). Differences in value of marginal product for average annual water deliveries were indications of a malallocation of late season water. A reallocation involving 28 percent of the restraining input (water) would increase net farm incomes (returns to capital, labor, and management) an …

Reliability Comparisons Of Navajo Indian And American Caucasian Individuals Responding To Acoustic Stimuli From Conventional And Automatic Recording Audiometers, J. Clinton Harris

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was made to determine the reliability of Navajo Indian and American Caucasian subjects to air conducted pure tones.

Audiograms were obtained on 30 Navajo and 27 Caucasian subjects as they responded to pure tones presented via a conventional audiometric technique and also via an automatic recording technique.

One audiogram via conventional audiometry and one audiogram via automatic audiometry were obtained on the same day. Replications of the same tests were administered on the following day.

Statistical analysis of the data was employed to determine the reliability of repeated test measurements. Mean threshold differences, standard deviations, Student's "t" test …

Boron Movement In Soil Columns, Joseph William Stucki

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three adsorption theories--Langmuir, B.E.T., and Freundlich--were applied to boron interaction with Aiken clay loam and Vernal sandy loam soils to determine which bests describes the system.

Column studies were conducted to obtain constants related to mass fluid flow and fluid dispersion within the column. An inert ion was used to obtain the pore volume and to calculate the fluid dispersion coefficient. These data were used to solve the material balance equation by the explicit numerical method developed by Lai for a digital computer. The output from the computer was a predicted profile boron distribution within the soil column.

The soil …

Aquatic Invertebrate Consumption By The Major Fish Species In The Blacksmith Fork River, Theodore F. Meyers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Exponential rates of digestion are described for brown trout and whitefish for July, October, December (1969), and April (1970). The slope of the line fitted to the digestion data from each month was defined as the instantaneous rate of digestion and applied to an exponential growth model to determine the instantaneous consumption rate.

The digestion and consumption rates were applied to field measurements of percent fullness to determine the amount of food material ingested during a 24 hour period. Brown trout consumed 127, 24, 19, and 84 mean percent of their stomach capacity in the July, October, December, and April …

A Statistical Analysis Of New Deal Economic Programs In The Forty-Eight States 1933-1939, Don C. Reading

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The data base for this research was provided by a set of mimeographed reports prepared in the summer and fall of 1939 by the Office of Government Reports, Statistical Section, Washington, D.C. Originally prepared for Franklin Roosevelt's 1940 campaign, they detail each New Deal program year by year for the 1933-1939 period. The set of forty-eight reports, one for each state, also contains material on the organization of various programs and outlines work accomplishments in each state.

This dissertation is intended as an analysis of New Deal loans and expenditures in each of the forty-eight states during the 1933-1939 period, …

The Usefulness Of 4-H Project Manual As Seen By Members Parents And Adult Leaders In Cache County, Vichit Viasayanunt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The primary objective of this study was to survey the usefulness of the 4-H members' project manual according to the opinions of members, parents, and adult leaders in Cache County, State of Utah.

Two USU Extension Agents, 140 4-H members, 119 parents, and 30 leaders cooperated in this survey. A separate questionnaire accompanied by a cover letter by the Extension Agents and a letter of explanation by the author was sent to each person in the three categories mentioned. Questionnaires were mailed to 200 4-H male members, 190 parents and 46 adult leaders. Evaluation of the usefulness of the manuals …

Instructional Costs In The School Of Graduate Studies At Utah State University, Evan N. Stevenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Institutions of higher learning are presently experiencing budget constraints unparalleled in recent times. The desire to reduce unnecessary expenditures has extended from administrators to the faculty and even to students. However, one of the greatest difficulties seems to be in identifying those specific areas where economies might be effected.

Business and industry have experienced the critical need for effective methods of analyzing their costs in order to survive in a competitive economy. Cost accounting techniques have been developed and have assisted in pinpointing both strengths and weaknesses. However, the administrator in higher education has been reluctant to accept similar approaches …

An Experiment To Determine The Effectiveness Of A Remedial Reading Program With Students At Utah State University, Judith J. Ivarie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study is to determine the effectiveness of 20 hours of remedial reading instruction as compared with 20 hours of vocabulary instruction on a select group of university freshmen in the Remedial English Program. Three measures of effectiveness used were comprehension, rate, and effective reading rate. The effective reading rate was determined by computing the arithmetic product of level of comprehension and rate of reading. The results indicated that for this particular population, using the materials and instructional techniques described, neither group increased reading rate at the .01 level of significance. The effective reading rate of the …

An Economic Analysis Of Feeding Steers Versus Heifers, Duane Sorensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The question of which sex of cattle to feed is a basic economic decision which must be made by feeders. An economic analysis of costs and returns associated with feeding steers in comparison to heifers would give feeders some assistance in making this decision.

The objectives of this study were to make an economic analysis of feeding a pen of steers and a pen of heifers in a feedlot, then determine the break- even prices for feeder cattle which would make the feeder indifferent to whether he fed steers or heifers , and finally to develop a decision model that …

Wind Noise: Its Effect On Human Audition, William Roy Nelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An examination was made of the acoustic characteristics of wind turbulence generated noise in a car traveling at 70 mph over smoothly paved highway with the driver's window down. The overall noise level was found to be at 112 dB SPL with the predominance of energy in the low frequencies. The study was concerned with the effects of such noise on human audition in terms of temporary threshold shift.

Twenty normal hearing young adults were exposed to a tape recording of wind noise for 15 minutes. Post-exposure auditory thresholds at seven discreet frequencies were compared to pre-exposure auditory thresholds at …

Nutrients And Phytoplankton In Hyrum Lake, Robert Bruce Murray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The current investigation indicates that the routine appearance of a noxious blue-green algal bloom of Aphanizomenon flos-aquae, in Hyrum Lake, a reservoir in northern Utah is a result of excess phosphorus. Data indicate that the algal growth is initiated by phosphorus liberated from the phosphorus rich bottom sediments, and at a time when nitrogen is present in excess in the lake relative to phosphorus.

Results indicate that the Little Bear River is the major source of nitrogen and phosphorus contributing to the eutrophication of Hyrum Lake. Nitrogen and phosphorus fluctuations in the Little Bear River proved to be concurrent with …

Toward A Measurement Of The Adequacy Of Health Services In Rural Utah, Michael K. Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The research reported in this thesis was an exploratory nature undertaken for the purpose of developing a measure of the adequacy of health services in three rural counties in Utah. The three counties included in the study area were Beaver, Piute, and Wayne.

Adequacy of health services in the three-county area was measured on the basis of (1) the general population's, or consumer's, perception of the adequacy of the existing services, (2) the professional's or provider's perception of the adequacy of the existing services, and (3) adequacy of the existing services determined by a comparison with an established standard.

The …

A Study Of The Inheritance And Linkage Relationships Of Three Glossy Characteristics In Barley, Jess R. Martineau

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-two barley crosses (Hordeum sp.) were studied in the F2 generation to determine the inheritance of the following contrasting characters: (N,n), (E,e), (Tr, tr), (Li,li), (Gp,gp), (K,k), (Z,z), (Gl,gl), (Gs, gs), (B,b), (Trd,trd), (O,o), (R,r), (Rb,rb), and (Ge, ge).

The three factors for glossyness, (gl), (gs), and (ge), were studied in relation to the other factors and each other to determine possible linkage relationships.

(gl) was found to be linked with (k) and 16 percent recombination and to (z) with 13 percent recombination. (gs) appeared to be linked with (gp) in two crosses, with a third cross showing independence. …

Opinions Of Non-Physical Education Teachers Toward Physical Education And Physical Educators In Selected Utah Secondary Schools, Myron L. Mcclellan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The questionnaire technique was used to gather the desired information for this study. A total of 450 teachers from large and small secondary schools served as subjects. An analysis of the opinions of these teachers indicated that a favorable attitude existed toward physical education in general. It was noted, however, that many were of the opinion that the programs in physical education were functioning at less than their potential. Responses also indicated a favorable attitude of the teachers toward physical educators. The most favorable opinion toward both physical education and the physical educator was recorded by the junior high female …

Present Livestock Feed Balance, Projected Feed Requirement And Potential For The State Of Utah, Roberto Savelli C.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objectives of this thesis were to estimate the present livestock feed balance and project livestock feed requirements and balances to 1980 for the State of Utah.

Present feed production was obtained from published data. Livestock feed requirements were calculated using factors published in Livestock-Feed Relationships, a publication of the United States Department of Agriculture.

The projections of feed requirements to 1980 were made by projecting livestock numbers based on a least squares analysis of past trends. Utilizing the projected numbers permits calculation of the feed requirements.

Feed production in 1980 was obtained by projecting past feed production and by …

A Method Of Estimating Minimum Dairy Farm Sizes For Specific Income Levels, K. Dale Russell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to calculate a method of estimating minimum dairy farm sizes for specific income levels. A survey of a sample of Utah dairy farmers was conducted to obtain data to calculate a long run average cost schedule. Dairy farmers who had just recently built new facilities and with varying sized herds were interviewed. Individual costs were studied to establish their effect on the long run average cost curve. Different average revenue curves for varying prices and production levels were used to establish minimum cow numbers needed to give specified incomes and growth potentials. Marginal analysis …