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An Experimental Study Of Variation Within And Between Populations Of Petrophytum Caespitosum (Nutt.) Rydb. With Emphasis On Numerical Techniques, Frank R. Drysdale

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nine populations of sixty-eight individuals representing the distribution of Petrophytum caespitosum (Nutt.) Rydb. (Rosaceae) in the Intermountain Region were investigated for taxonomically significant variation using numerical techniques. On the basis of 19 morphological characters 3 subspecific taxa are recognized. Two taxa are existing subspecies: P. caespitosum (Nutt.) Rydb. var. caespitosum and P. caespitosum (Nutt.) Rydb. var. elatius (S. Wats.) Tides. One new subspecies is described: P. caespitosum (Nutt.) Rydb. var. latifolium. The ecology of the species is discussed. The floral and vegetative anatomy are described. Chromosome counts of 3 populations have given n = 9. A list of herbarium …

The Effect Of An Extended Music Curriculum On The Behavior Of Nursery School Children, Dorothy Ann Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The free play behavior of two of the Utah State University nursery school groups was observed and recorded according to the time sampling instrument devised to assess the musical activity of children. Twelve group music experiences, in addition to those of the regular curriculum, were presented to the experimental group while the control group received two such experiences.

Sex was found not to be a significant factor in the amount of musical activity; however, girls were slightly more active rhythmically than the boys. The children between 3 years 10 months and 4 years 4 months were the most active musically …

Evaluation Of The Effects Of Reduced Transpiration Upon Soil Moisture Retention In An Aspen Stand Throughout The Growing Season In Northern Utah, Michael Zan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The direct effects of chemically- induced reduced transpiration on soil moisture were studied in a sub-watershed of the greater Logan River drainage.

No statistically significant differences occurred among the total amounts of water transpired by the treated and control units.

The seasonal low points of soil moisture, in September, showed no significant differences in final moisture retention for the two years studied, either for the control or the treated portions of the study site.

The 1967 season showed a lag in soil moisture depletion compared to the 1966 season. Although a later spring in 1967 may have aided in the …

Student Understanding And Use Of Tobacco In Box Elder Senior And Junior High Schools, Douglas M. Stoker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Student. understanding and use of tobacco was studied under the following specific areas: specific knowledge as it relates to smoking and health; student opinions and attitudes toward smoking; smoking experience; and the influence of certain factors on smoking status.

About 1155 students were sampled with the use of a questionnaire. It was found that there was no significant difference in the scores of boys and girls. The senior high students were better informed than the ninth grade or junior high students.

The majority (81 percent) of all students surveyed were of the opinion that the pleasure derived from smoking was …

Distribution And Ecology Of The Desert Bighorn Sheep In Southeastern Utah, Lanny O. Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In May 1965, the first investigation and research in the native desert bighorn sheep in Utah was undertaken. The study was centered in the White Canyon area, San Juan County, in southeastern Utah. Seven other areas along the Colorado River were found to have smaller reminant populations of desert bighorns.

The White Canyon population was determined to be between 124 and 144 desert bighorns (Ovis canadensis nelsoni), excluding lambs.

The desert bighorns in southeastern Utah return from surrounding range lands each year to the same areas, known as lambing grounds, to give birth to their lambs. Ewes under …

The Electric Utilities Rate Structure Determination, Walid M. Keilani

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study is to analyze the determination of the rate structure of the electric utilities. It consists of three chapters.

The first chapter deals with the determination of the rate basis of electric utilities. The calculation of the rate base is explained, and also the problems of the price level changes.

The second chapter shows the calculation of the rate of return and the measures used for testing the fair rate of return.

The third chapter is an analysis showing the effect of the different cost and demand factors in determining the rate structure of electric utilities.

Effect Of Gibberellic Acid And Chilling On Nucleic Acids During Germination Of Dormant Peach Seed, Yuh-Nan Lin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of nucleic acid changes influenced by gibberellic acid and chilling treatments in peach seed was performed in an attempt to reach a better understanding of the mechanism involved in breaking seed dormancy.

Gibberellic acid and the chilling treatment increased the RNA content. These two treatments which break dormancy also increased RNA, suggesting a similar mechanism involving RNA. Chilled seeds contained more RNA than did the gibberellic acid treated seeds.

DNA content remained unchanged regardless of treatment.

Dry seed had a greater ribonuclease activity than with soaked seeds. Enzyme changes did not correlate well with the RNA content in …

Effect Of Stage Of Seedling Development On Absorption Of Selected Pre-Emergent Herbicides, Pairoj Suchinda

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Using radioautography ¹⁴C simazine, ¹⁴C EPTC, ¹⁴C 2,4-D, ¹⁴14 DCPA and ¹⁴C pyrazon absorption by seeds of bean (Phaseolus vulgaris L.), squash (Cucurbita maxima), corn (Zea mays), onion (Allium cepa) and oat (Avena sativa) was studied. Simazine, EPTC, 2,4-D and pyrazon were absorbed through the seed coat of bean, squash, corn and onion, the amount increasing with time. Little DCPA was absorbed by seeds of bean, squash, onion and oat. Distribution and translocation of ¹⁴C simazine, ¹⁴C EPTC and ¹⁴C pyrazon occurred in …

An Analysis Of The Outdoor Recreation Resource And Its Development In The Canyon Country Of San Juan And Grand Counties, Utah, Lawrence E. Royer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The wild lands recreational resources of the canyon country of southeastern Utah were analyzed within an evaluation framework specific to the region. Patterns of recreation development were established and recommendations for planning were submitted.

The study area was found to be richly endowed with environmental recreation resources and opportunities. Contributing environmental factors included the uniqueness, diversity, configuration, and/or abundance of the scenic, water, climatic, and primitive resources. An unusually wide spectrumquality opportunities were present.

Planning and development were inconsistent with the expression of the environmental resources. A lack of coordination among the responsible public agencies, disparities in allocation of planning …

The Morphological And Anatomical Effects Of Pyrazon On Beans And Pigweed, James E. Rodebush

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Morphological and anatomical effects of pyrazon, 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone, on Phaseolus vulgaris L. and Amaranthus retroflexus L. were studied after treatment of seeds or seedlings at various pyrazon concentration, exposure times and environmental regimes.

Beans treated with pyrazon developed various chlorotic and necrotic symptoms on the unifoliate leaves. Chlorosis and necrosis were observed first on the leaf margins. Beans treated with pyrazon under a complete dark regime developed symptoms much later than those under an alternating light and dark regime. Pyrazon treated pigweed displayed symptoms similar to those on beans.

Pyrazon induced abnormal chloroplasts and graded cellular collapse in the unifoliate leaves …

Food And Nutritional Needs Of The World Population By 2000 A. D., Sitaram Shankar Kharbas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations were carried out to project the food needs of the world population by 2000 A. D., and to explore the possibilities of meeting these requirements.

About 70 percent of the world population presently living in developing countries do not get adequate diets, and suffer from many diseases of under-nutrition and malnutrition. They are unable to increase food production themselves. People in the developed nations have enough food and their food production is increasing at a rate faster than the rate of growth of population.

Cultivable land is the main source of food for man. The seas can also be …

Physio-Chemical And Toxicological Studies On Controlled Atmosphere Storage Of Certain Deciduous Fruits, Neil Adair Littlefield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of controlled atmosphere on the metabolism of Golden Delicious and Rome Beauty apples, Anjou pears, and Lambert and Bing cherries were studied with respect to changes caused in the normal metabolic functions carried on during storage of these fruits. Atmospheres consisting of 1.5 per cent CO₂ and 2.5 per cent O₂ for the apples and pears and 10.5 per cent CO₂ and 2.5 per cent O₂ for the cherries were employed.

Fungi of the strains Botrytis alli, Rhizopus nigricans, and Penicillium expansum were subjected to controlled atmospheres at 21° C to determine …

Isolation, Identification, And Comparison Of The Volatiles Of Peach (Prunus Persica L., Cultivar, Gleason Early Elberta) Fruit As Related To Harvest Maturity And Artificial Ripening, Joseph Yungsheng Do

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Volatiles of peach (Prunus persica L., cultivar, Gleason Early Elberta) fruit were studied by gas-liquid chromatography, thin-layer chromatography, and infrared spectrometry. Hard mature, firm mature, soft mature, tree ripe, and artificially ripened hard mature fruit obtained from four seasons, 1964 to 1967, were used. A total of 86 peaks were observed in the chromatogram of the tree ripe peach volatiles. Major components of the volatiles identified were mainly esters, gamma and delta lactones, aldehydes, alcohols, and terpenes. In general, concentration of the volatile components were found to increase with the maturity of the fruit. However, that of the artificially …

The Effect Of Oven Temperature, Cooking Method, And Breed On The Tenderness, Juiciness, And Flavor Of Beef, Carma B. Stembridge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of oven temperature, dry-roasting, and breed on the eating quality of beef was determined by sensory and objective methods. Two adjacent standing rib and two adjacent chuck roasts of prime, choice, and good grades from animals of Hereford, Shorthorn, and Charolais breeding were dry-roasted. Control roasts (9-12th ribs) were cooked at 325 F. Experimental roasts (6-8th rib and two chucks) were assigned an oven temperature of 325 or 250 F at random. All roasts were allowed to reach ah internal temperature of 155 F as recorded on a potentiometer.

Tenderness, as determined by a Warner-Bratzler shear, was greater …

5 Β- Pregnane- 3Α- 20Α- Diol Excretion In Urine Of University Women During The Menstrual Period, Rita Shin-Hui Liao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Five normal healthy young university women while on self-chosen diets and living under normal conditions served as experimental subjects in this study. Urinary pregnanediol was measured for 10 days of the menstrual cycle. Meal frequency (3 meals vs. 2 meals with no breakfast) was also included in the study.

A modification of the method of Eberlein and Bongiovanni on thin layer chromatography was used to determine pregnanediol in the urine sample.

Urine pregnanediol excretion was in the pattern as investigated by other workers. The values rose in the latter half of the menstrual cycle, and fell prior to the onset …

Influence Of Pre-Fermentation Inoculations With Leuconostoc Mesenteroides And Lactobacillus Plantarum On Physico-Chemical Properties Of Fresh And Dehydrated Sauerkraut, William T. Nabors

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect Leuconostoc mesenteroides and Lactobacillus plantarum has on the physical and chemical properties of fresh and dehydrated sauerkraut was tested. Sauerkraut inoculated with L. plantarum was slower in fermenting and significantly lower in acidity and higher in pH. Dehydration of sauerkraut by freeze-conventional hot-air and micro-wave processes produced a significant loss in volatile components, ascorbic acid , lactic acid and an increase in pH. Each of the dehydration processes caused browning of the sauerkraut . These changes were less with freeze-drying and increased with conventional hot-air drying and microwave drying. Gas-liquid chromatography confirms the loss of volatile components …

The Relationship Of Occupational Choice To Ego Identity And Self-Concepts, Norman D. Bell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study attempted to investigate the relationship of occupational choice to ego identity achievement, to self-concept, and to academic achievement, as these are related to Eric Erikson's contention that is adolescents' inability to settle on an occupational choice which disturbs them and results in a sense of identity diffusion (lack of solidified ideas of self, goals for life, and a need to seek external supports).

The sample consisted of 320 senior high school boys in the tenth, eleventh, and twelfth grades.

Variables considered included: level of vocational commitment; ego identity; self-regard, i.e., self-concept, self-acceptance, ideal self and adjustment (sum of …

Variations On Piaget's Pre-Number Development Tests Used As Learning Experiences, Hyrum E. Richards

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of learning upon the rate of conservation attainment and its transference to other areas of performance were studied using 17 mentally retarded subjects.

Subjects found to be non-conservers on pretests were taught conservation and correspondence using a variety of tasks modeled from Piaget's experiments. They were also pretested on the WISC Information and Picture Arrangement Sub-tests and a number concept test. Following the learning experiences, the subjects were posttested using the same measures used for pretesting with the exception of the number test where an alternate form was used.

Significant correlations were found between the conservation pretest scores …

A Study Of Life Crisis Magnitude Of Psychiatric Patients And A Non-Therapy Group, Helen B. Morris

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A group of hospitalized psychiatric patients and a randomly selected non-therapy group responded to the Schedule of Recent Experiences questionniare. In order to determine the magnitude of life change events for the two groups, Life Change Unit totals were derived for the years 1966 and 1967.

To test the hypothesis that patients in psychiatric treatment have experienced a quantitatively significant greater amount of life change than a group of non-therapy subjects, an analysis of variance was used to determine whether there were significant differences between the scores for the two groups.

For the year 1966, no significant difference was found …

The Relationship Between Grade Point Averages Of The Henmon-Nelson Test Of Mental Ability And The American College Test, Eda Alene Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Grading within a single school was studied by comparing the grades with the policy of grading recommended by the high school, and the relationship between the grades and two tests administered by the school.

Six hundred fifty-five graduates from the 1964, 1965 and 1966 graduating classes made up the sample. The grades used were those received during their three years in high school. The tests were the Henmon-Nelson Test of Mental Ability administered in the tenth grade and the American College Test which was taken in the twelfth grade. The Pearson r Correlation Coefficient was used to make the correlations. …

The Use Of Mental Imagery Among Young Children In The Acquisition Of Piaget's Principles Of Conservation, Richard C. Sweetland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study attempted to discover some parameters in terms of mental age at which young children, ages five through eight, begin to utilize effectively their mental imagery in the learning process. Using Piaget's principles of conservation as a learning task, subjects were taught in one of two groups: Group one was instructed in conservation concepts by use of concrete example, in which case they were allowed to see, handle and manipulate materials as they underwent transformations. Group two received identical instruction but were called upon to use their mental imagery to visualize the materials undergoing transformations.

Based upon the administration …

The Effects Of A Programed Text Of Contingency Management Procedures On The Ability Of Teachers To Write Behavioral Prescriptions, Lanny E. Morreau

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An informational source where teachers and teacher-candidates could gain a functional knowledge of contingency management techniques had not been developed. A programed text was written to provide this source. Five teachers and teacher-candidates were exposed to the text for a period of three days. As a result of this exposure, learning gains, significant at the 0.01 level, were found in the students' abilities (a) to write behavioral prescriptions and (b) to write the principles of contingency management when presented with open-ended questions pertaining to these principles.

Child's Perception Of Parental Attitude And Its Relationship To Academic Achievement And Problem Awareness, Mohammed K. Fazel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was aimed at finding relationships between the triad of academic achievement, child's perception of parental attitude, and his problem awareness. The study was designed with reference to three postulates of phenomenological psychology. (a) The perceptual field of an individual at any moment determines his behavior of the moment. (b) The term phenomenal self is formed by the individual's interaction with others. (c) The basic need of the organism is the maintenance and actualization of the self.

A survey of the literature tended to support the thesis that there was a positive relationship between educational achievement and parental acceptance. …

Drinking And Student Understanding Of Alcohol And Alcoholism At The Utah State Industrial School, Elliot J. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Objectives of this investigation were to study the extent alcohol was used by students of Utah State Industrial School (SIS), determine the knowledge these students had of alcohol and alcoholism, and compare the data of the Industrial School with data obtained from selected public high schools in Utah.

Study results revealed a greater percentage of the SIS students had used alcoholic beverages and their first drinking experience occurred at an earlier age than for the high school students. Also, a greater percentage of the SIS students continued drinking after their first drinking experience. The percentage of SIS students having …

A Planning Analysis Of Utah Lake To Determine Its Recreational Potential, Robert D. Talbert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah Lake, located near Provo, Utah, is a lake of relatively low recreational development. There are certain inherent conditions that contribute to this situation. Four of them are, water level fluctuation, pollution, turbidity and the close proximity of other recreation sites of possible high desirability. This thesis explores these four problems and offers solutions and recommendations to solve or otherwise control their effect on recreation at Utah Lake.

The water level fluctuation will be under greater control after the Central Utah Project completes certain alterations in the lake and its watershed. Some fluctuation will continue but by proper design of …

A Comparison Of The Functions And Population Size Of Central Places In Snohomish County, Washington And Cache County, Utah, Richard L. Dixon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of the central places in Cache County to determine their population and function was made during the academic year 1967-1968. The purpose was to determine if the function of places in Cache County, Utah of a given population was the same as the function of places in Snohomish County, Washington of the same population.

The data for Snohomish County, Washington were taken from a report on the central places in that county prepared by Brian J. L. Berry and William Garrison of the University of Washington Geography Department.

Evidence is presented to support the conclusion that these two …

The Water Permeability Of Potato Tuber Tissue, Ward Bryce Roberson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments involving pressure, temperature, salt solutions, decenylsuccinic acid, a surfactant, and respiration inhibitors including azide, dinitrophenol, malonate, and iodoacetic acid were conducted to determine the extent to which the cytoplasm of the parenchymatous cells of the potato tuber influenced the tissue's water filterability.

The amount of water or solution moved through the potato tissue was measured by applying a pressure differential to the solution, forcing it across a 1.0 mm thick disc of tissue which was supported in a pressure filtration apparatus. The solution moved was collected and measured directly. In certain experiments the conductivity of dialysis membrane material was …

Factors Associated With The Penetration And Colonization Of Tomatoes By Verticillium Dahliae, Terry Dee Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments have demonstrated that Verticillium dahliae is capable of direct cortical penetration of roots and of subsequent distribution throughout plants of both resistant (Loran Blood) and susceptible (Meteor) varieties of tomato. Plants were inoculated by the root dip method and planted in sterile soil. After one week the fungus was isolated from the upper portions of both the susceptible and resistant varieties as indicated by growth petiole sections plated on PDA. The distribution of the fungus in the resistant plants was irregular, but in susceptible plants the fungus was isolated regularly from all petiole sections. In experiments using disposable growth …

A Biosystematic Study Of The Genus Aconitum (Ranunculaceae) In The Intermountain Region, Rex Cates

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study dealt with the Intermountain aconites of which the chromosome number of n = 8 was obtained.

The bumblebees, Bombus rufocinctus Cresson, B. appositus Cresson, and B. centralis Cresson, are the major pollinators of the allogamous and autogamous aconites.

Two-dimensional thin layer chromatography of cauline leaf extracts showed that the Intermountain aconites studied here consist of one chemical group.

The overall evidence indicates that the Intermountain aconites consist of one species, Aconitum columbianum Nutt., with two varieties, variety columbianum and variety ochroleucum A. Nels.

Differential Cross Section For Electron Positron Pair Production From Neutron Proton Scattering, Robert Dalton Wheeler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The differential cross section for a neutron-proton collision forming an electron-positron pair is calculated. The interaction between the neutron and proton is assumed to be pseudo-scalar and that between the proton and the pair electromagnetic. The interaction between the pair and the neutron is assumed negligible.

The methods used to obtain the matrix elements of the process follows that of Möller. The calculation is therefore based on retarded interaction and is relativistic. In obtaining the square of the matrix elements the initial and final polarization states were not considered. The usual projection operator methods were then applied to the intermediate …