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A Measure Of The Amount Of Phosphate Adsorption And The Rate Of Release Of Indigenous Phosphate From A Desert Soil, Robert Lindsey Evans

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The capacity of a calcareous desert soil, Thiokol silt loam, to retain natural, as well as added, orthophosphate-P was measured by equilibrium adsorption employing a batch technique and evaluated using the two-slope Langmuir adsorption isotherm. From these data, corrected to account for indigenous soil P, a hypothesis was formulated as to the nature of retention of P by the soil, including the identification of two interfacial reactions involving P, and a value calculated for the adsorption maximum as defined by the Langmuir isotherm equation for P with soil at each of two soil depths and three constant temperatures within the …

The Formation And Properties Of Machining Burrs, Laroux K. Gillespie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The formation of burrs in Machining Operations occurs by three Basic Mechanisms:

1) Lateral Extrusion of material

2) Bending of the chip

3) Tearing of the chip form the workpiece

Each of these mechanisms has been studied analytically and compared to experimental results. The agreement between predictions and measurements has been found to be close.

Drilling, milling, grinding, and turning burrs were produced in 303Se stainless steel and their properties were related to tool geometry, feedrates, and depth of cut. One thousand measurements were made and subsequently analyzed by analysis of variance techniques. The properties measured include burr length and …

Complexive Ordering Of Reading Experience Through Grapheme-Phoneme Relative Frequency Control, Wesley K. Roberts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation develops a word bank based on a series of well defined filters. The basis of this system is grapheme-phoneme relative frequency control. The word bank is designed to be used in developing reading materials at varied degrees of difficulty.

Four short stories were edited as to their grapheme-phoneme relationships. Reading speed and reading comprehension were measured for each student on these stories. All students read a story in the original form and a story in the filtered version.

No difference in reading comprehension were found, but reading speed was significantly higher on three of four stories.

Identity: A Study Of Existential Vs. Social Anchorage, Paul J. Seymour

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to assess the identity anchorage of persons in different societal positions.

Four experimental groups were chosen to represent different societal positions, namely, students, musicians, management personnel, and nonmanagement personnel. There were 93 subjects involved in these four groups. Each subject was presented with an adapted version of the Twenty Statements Test and a questionnaire to obtain biographical data. The statements made on the Twenty Statements Test were then placed into one of the following categories: physical characteristics; social roles and institutions; characteristic ways of acting, feeling or responding in social interaction; and, broad nondifferentiating …

A Comparison Of Two Methods Of Teaching A Remedial Mathematics Course At The Community College, James C. Olsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Problem

This study was concerned with the effectiveness of two different programs for teaching remedial mathematics to community college students. An individualized instruction program, making use of independent study and the small group setting, was compared with the traditional lecture-textbook instruction program to determine if there existed significant differences in (a) the rate of attrition, and (b) mathematics performance. A secondary objective was to determine if significant differences existed between students enrolled in remedial mathematics classes at 9 AM and those enrolled at 12 Noon.

Method

The target population consisted of all students in fourteen community colleges in the Los …

The Validity Of Awarding Credit By Examination In English Composition, Mark Guymon Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the validity of excusing students from composition courses based upon an objective examination.

Utah State University (USU) students who had taken freshman composition courses during the 1970-71 school year when these courses were required of all entering freshman students were divided into two groups: one group was composed of those who had received an "A" or "B" for three freshman composition courses, while the other group had received a- "C" or "D" for the same courses. USU students who had been excused from taking freshman composition courses based on the CLEP General Examination in English Composition (CLEP) …

An Experiment Comparing The Relative Effectiveness Of A Linear And A Context Program In Teaching Some Selected Persian Words With Reference To The Persian Alphabet To English Speaking People, Batool Moghadam

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to test the relative effectiveness of a linear and a context program in teaching some selected Persian words to English speaking people.

A survey of the literature did not reveal studies closely related to the present study, but it revealed studies verifying the usefulness of programed instruction in general, and also some limited attempts made to set up programs for teaching Persian to Americans. There has been increasing attention by educators to programed instruction in the last fifteen years. The idea was also supported that there is a need in the United States for …

Group Treatment Of Insomnia In Psychiatric Patients Through Relaxation Training, Richard Robert Weber

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The present study investigated the effects of progressive relaxation training using an abridged form of Jacobson's (1938) relaxation exercises on the mean number of nocturnal sleep disturbances in a group of psychiatric inpatients. Nocturnal time-sampling observations were made during a 14 day base line to select Ss who averaged 1.5 sleep disturbances per night. Six women, ranging in age from 23 to 56 years, were classified as problem sleepers and were moved to a common bedroom, where a second 16 day base line was taken to control for changes in the nocturnal environment. After a brief introduction and demonstration, …

The Effects Of Teaching Methods, Experimental Procedures, Grading, And Exam Frequency On The Academic Performance Of Students In Higher Education, Paul William Robinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to demonstrate a new approach in the analysis of teaching procedures, and show the importance of certain variates on the academic performance of college students.

Objectives

The objectives of this study were threefold:

1. To determine whether an ABA approach (definition on page 19) can be used effectively to identify relevant variables influencing college student's academic performance.

2. To determine the influence of grading and exam frequency on achievement in college.

3. To compare the effectiveness of a lectureless go-at-your-own-pace teaching procedure and lecture procedures on student performance as measured on a final exam and a six …

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Freshman Orientation And Career Articulation With A Rational Value Decision-Making Model, Bud W. Stephenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The role identity of the college and university counseling center has been in a state of evolution for the past few years and a reconceptualized role for the college and university counselor is beginning to emerge. This evolution is the result of rapid change taking place within society and in higher education. In recent research such authors as Morrill and Oetting (1970) have noted that the programs of counseling centers in the colleges and universities are not changing along with the rest of the college environment today and programs are thus becoming more and more outdated and irrelevant. Along with …

Task Persistence In Early Childhood Education, Thomas Richard Stephenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to discover developmental trends in task persistence (TP). It was hoped that the results would suggest when and for what groups a task persistence (TP) curriculum is crucial.

To study this development a sample of two, four, and six year old children were given a "work" task. The task required 120 subjects (Ss) to sort and fold 33 items of clothing and linen. After the task instructions and demonstration, the experimenter did not intervene with reinforcers or further directions.

The dependent variables investigated were time spent on the task, time spent away from the task, and …

Non-Contingent Reinforcement In A Counseling Like Situation, Robert B. Shelton Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine if a variable, non-contingent reinforcement, could account for a significant amount of the effect of psychotherapy. A sample of ninety subjects was drawn from basic psychology classes and randomly assigned to six groups in a variation of the Soloman 4-group design. The treatment groups were connected to sham GSR equipment and told that when a light flashed they had made an anxiety reducing statement and were becoming more mentally healthy. The subjects were given three by five cards upon which were typed positive-negative adjective pairs and told to use the cards as …

An Analysis Of The Effects Of Delay Of Reinforcement And Momentary Probabilities Of Reinforcement On Interval Schedule Performance, Charles A. Lund

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In two experiments pigeons were exposed to VI and FI schedules and schedules approximating both VI and FI schedules. In experiment I, the probabilities of the VI and FI components in a Mixed FI VI schedule were manipulated to create schedule contingencies approximating simple VI or FI. In experiment II, the minimum and maximum inter-reinforcement intervals were manipulated to create schedule contingencies approximating simple VI or FI. The major finding of both of these experiments was that maximal control by the dimension of time occurred as FI contingencies were approximated. Control by any one temporal value in experiment I depended …

The Relationship Of Scoring Above Or Below The 75th Percentile On The Kuder Preference Record To General Aptitude, Vocational Attitudes And Occupational Values, Terry Joseph Orme

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to investigate the relationship of general aptitude, vocational attitudes, and occupational values to scoring above or below the 75th percentile on the Kuder Preference Record by ninth grade students in rural southwestern Utah and southeastern Idaho.

The sample consisted of a group of 248 students who participated in Project Mace. The students were divided into two groups according to their Kuder percentile scores. The G scale of the General Aptitude Test Battery, the Vocational Development Inventory, and the Occupational Values Inventory were also administered to the subjects. The data were analyzed by a simple correlation matrix …

The Effects Of Mobile Assisted Career Exploration On The Career Development Of Rural Ninth Grade Students, Robert Eldred Charlton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Problem. This study investigated whether or not a structured career development program, using a mobile guidance unit and operating on a limited time schedule, could provide a feasible means for facilitating the career development of ninth grade students in the rural school setting.

Project MACE. MACE stands for "Mobile Assisted Career Exploration." Project MACE was a study developed by the research office of the Utah State Board of Education and conducted by Utah State University. The study used ninth grade students in sixteen selected rural Utah high schools and in two rural …

An Evaluation Of Stress Induced Mortality Of Stocked Catchable-Sized Rainbow Trout In Temple Fork Of The Logan River, Robert Earl Gresswell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The level of stress imposed by population pressure, handling and live transportation on planted catchable-sized rainbow trout in a northern Utah stream was examined. Production of adrenocorticotrophin, as measured by interrenal ascorbic acid and serum cortisol levels, did not occur in transported or planted fish.

Dead or moribund fish collected from stream or live boxes comprised 13 percent of the 2,000 fish planted. Aeromonas salmonicida, the causative agent of furunculosis, was isolated from 41 percent of 106 moribund fish sampled. In addition, 39 percent of the samples exhibited bacterial growth other than A. salmonicida. Apparently, handling, transportation, and planting did …

Reproduction, Survival And Density Of Snowshoe Hares In Northeastern Utah, William R. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper presents information obtained from 1972 and 1973 on the reproduction, survival and density of snowshoe hares (Lepus americanus) in Cache National Forest, Utah. The main objectives of the study were: (1) to estimate population densities; (2) to measure adult and juvenile mortality ; and (3) to measure natality rates , including recruitment (realized annual natality).

Live-trapping and snaring were used to estimate population levels and to collect hares for necropsy. Fecal pellet counts were used to evaluate relative habitat use by hares.

The results of this study were compared to other studies of snowshoe hare ecology …

Spatial Impact Of Factor Payments: A Case Study Of Turkey Production And Processing In Utah, Chesley T. Blackham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to examine the importance of the spatial origin of capital or investment funds and its influence on local community incomes within the context of agricultural production and processing in a rural area in Utah.

A careful identification of the sources of capital investment can be used to determine the spatial source and flow of returns from it, and, hence, provides some indication of the extent to which local community income could be expected to change with changes in the level and mix of factors employed locally.

Economic And Agronomic Analysis Of Silage And Grain Corn Production In 15 Counties Of Utah 1972, Juan Zenteno

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study estimated the 1972 costs and returns, and analyzed the physical response and economic relationships of corn hybrids for silage and grain production in some counties of Utah.

Average size of enterprise, land value and equipment value were estimated for silage and grain corn production in Utah.

Labor requirements for land preparation, growing and harvesting of silage and grain corn production were averaged. Net returns and costs (variable and fixed) for silage and grain corn production were computed in 30 farms of 15 counties of Utah to find the total production cost.

Yields, total cost, total revenue and economic …

Mineral And Chemical Content Of The Deep-Water Sediment Sequences Of Bear Lake, Utah-Idaho, James C. Biesinger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-five piston cores 6 to 12 feet long were obtained from the deepwater sediments of Bear Lake, Utah-Idaho. Analyses of these cores revealed that the deep-water sediments of the lake are divided into two major sequences: a younger sequence rich in carbonate minerals, here called the carbonate sequence, and an older sequence rich in silicate minerals, referred to in this paper as the silt sequence. The carbonate sequence is composed of clay-sized quartz, aragonite, calcite, dolomite, montmorillonite, illite, kaolinite, chlorite, and amorphous material. The silt sequence consists of both silt- sized and claysized particles of quartz, calcite, dolomite, montmorillonite, illite, …

A History Of Brigham Young College, Logan, Utah, Arnold K. Garr

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Before Brigham Young College was founded in 1877, a variety of schools existed in Utah. The Mormons at first, and later the Protestants and Catholics made significant contributions to education in the territory.

Education has always played an important role in the philosophy of the Mormon church. In the early days of church history, the Mormons founded schools in the places they settled. This policy continued when they settled in Utah.

Vector Preference Among Varieties Of Lycopersicon Peruvianum And L. Esculentum As Related To Curly Top Virus Resistance, Stanford A. Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Tests substantiating vector nonpreference as a factor in the ability of certain tomato varieties to escape curly top virus (CTV) infection were conducted and evaluated. Nonpreference is not an effective mode of resistance to CTV in tomatoes under field conditions since leafhoppers feed on and may infect plants before expressing a preference.

Preference of viruliferous leafhoppers was observed on plants of seven tomato varieties arranged both randomly and homogeneously in caged flats. Through observation of curly top symptom development, relative resistance due to vector nonpreference was calculated for each variety.

Up to 23 per cent of the fairly high resistance …

The Seasonal Pattern Of Cavitation In Five Species Of Trees, Herond R. Hoyt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Five species of trees were studied: Acer glabrum (Hook.) Dippel, maple; Betula fontinalis Sarg., birch; Fraxinus pennsylvanica Marsh., ash; Populus tremuloides Michx., aspen; Pseudotsuga menziesii Britton, Douglas Fir. The trees were taken from naturally growing stands, between 20 and 40 years old, and about 7 m tall. The trees were cut down at eight study dates extending over 18 months. A 1.5 m section of stem and a branch from the upper and lower part of the tree were taken to the laboratory. Small pieces were then cut from these large pieces and were subsequently sliced into sections 200 microns …

Effect Of Various Nitrogen Sources On The Metabolism Of Miserotoxin In Astragalus Miser Dougl. Ex Hook., Robert Parker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wasatch milkvetch [Astragalus miser Dougl., var. oblongifolius (Rydb.) Cronq.] was highest in miserotoxin, a poisonous nitro compound, when potassium nitrate was used as the nitrogen source in nutrient cultures. Ammonium nitrate, added to Hoagland solutions to provide four and one-half times normal nitrogen, lowered percent miserotoxin in the plants. Plants grew abnormally in the greenhouse, producing little growth and becoming periodically senescent. High greenhouse temperatures, up to 45 C, were probably responsible for the abnormal growth.

Attempts to inoculate and fix nitrogen in Wasatch milkvetch with Rhizobium bacteria were unsuccessful in the greenhouse.

In growth chamber studies, percent miserotoxin …

Low Temperature Germination And Seed Coat Thickness In Tomatoes, John M. Green

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This investigation has been shown that the thin seed coat of tomato variety P. I. 341988 is not the factor responsible for its ability to germinate at low temperatures. The results support a previous report that low temperature germinating ability is inherited as a simple recessive. Seed coat thickness appears to be conditioned by two or more gene pairs, with dominance lacking. The maternal parent's genes control seed coat thickness, but the embryo's genes control low temperature germinating ability.

A Comparison Of The Ecological Life Histories Of Delphinium Occidentale S. Wats. And Delphinium Barbeyi Huth, Jere Randolph Holman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two species of the holartic genus Delphinium (D. occidentale S. Wats. and D. barbeyi Huth) were studied in the field and laboratory to determine the factors influencing the life stage development and distribution of these plants.

Delphinium occidentale, more widely distributed geographically and altitudinally than D. barbeyi, is found as a member of aspen and sagebrush communities. Sites are mesic in early spring but turn xeric by midsummer. Delphinium barbeyi, more limited in distribution geographically and altitudinally, appears to be limited to subalpine sites.

Adult biological properties are similar for both species. Morphological and taxonomic differences …

Studies Of Porphyrin Biosynthesis In Higher Plants, Tsung-Chiang Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Uroporphyrinogen decarboxylase which catalyses the formation of coproporphyrinogen from uroporphyrinogen is located in the soluble fraction of tobacco leaves and was purified 72 fold through ammonium sulphate precipitation and calcium phosphate gel adsorption.

Kinetic studies indicated that the apparent Michaelis constant was 1 x 10^-6 for uroporphyrinogen III (pH 6.5; 37° C). Uroporphyrinogen III served as a much better substrate than uroporphyrinogen I under the standard conditions of this study.

Enzyme activity was inhibited by thiol reagents and heavy divalent cations.

Both chloride and fluoride salts inhibited the formation of coproporphyrinogen from uroporphyrinogen.

Enzyme activity was inhibited by several …

Modification Of Ontogenic Expression Due To Relocation Of The Ry+ Gene In Drosophila Melanogaster, Allen A. Badgett Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ry⁺ gene of Drosophila melanogaster and its associated enzyme, xanthine dehydrogenase, were employed in an analysis of the relationship between regulation and the location of a gene in the genome. Enzyme assays as an indication of gene activity were performed on genotypes containing zero, one and two doses of ry⁺ genes. Xanthine dehydrogenase activity of rosy genes in normal and relocated positions was determined during development.

The results indicate: 1) the gene ry⁺ is differentially active during ontogeny; 2) the activity during ontogeny is proportional to the number of ry⁺ genes present in the genome; …

Mormon Myth Or Monopoly: A Contemporary Study To Determine The Perceived Influence Of The Mormon Church On Utah Politics, Douglas S. Foxley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine the attitudes, opinions, and beliefs of Utah residents concerning what role, if any, the L.D.S. Church should play in Utah politics; if they believe in the concept of a separation of church and state; whether they feel a separation of church and state exists in Utah; and how much influence they perceive the predominant faith of the state has on its politics.

Thus, the four following hypotheses were designed:

1. Utah residents will perceive that churches should be involved in moral, but not political issues.

2. Utah residents will perceive that there …

A Trail Guide To The Dominguez – Velez De Escalante Expedition 1776, Robert S. Russon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1939, Herbert E. Bolton stated a need for a synthesizing map of the Dominguez - Velez de Escalante route through the four states of New Mexico, Colorado, Utah, and Arizona. Dr. Bolton urged that a joint effort be undertaken between state and government agencies to establish an "Escalante Way" through the four states to commemorate the historic trek.

The "Trail Guide to the Dominguez - Velez de Escalante Expedition 1776" is an answer to the Challenge given by Herbert Bolton. It is essentially a set of maps, accurately drawn, simplified for lay read­ ing and enlivened by supporting text. …