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Role Of Cytoplasmic Microtubules In The Control Of Normal Spermiogenesis In Drosophila Melanogaster, Richard F. Wilkinson Jr.

Biology

An experimental study was conducted to determine the role of cytoplasmic microtubules in normal spermiogenesis of Drosophila melanogaster. An earlier study of mutant ms(3)10R of Drosophila presented evidence that suggested a direct role of cytoplasmic microtubules in sperm development. This finding provided some direction toward the clarification of currently controversial and conflicting hypotheses; are cytoplasmic microtubules necessary subcellular organelles during sperm maturation? These conflicting hypotheses are particularly opposed on the role of microtubules in the normal modeling of the sperm nucleus. One hypothesis states that cytoplasmic microtubules around the nucleus ("manchette" microtubules or nuclear-sheath microtubules) apply a modeling …

Social Organization Of The Cassin's Finch In Northern Utah, Fred Burton Samson

Biology

Cassin's Finch populations were studied in northern Utah during three breeding seasons and three winters to determine patterns of breeding, factors limiting breeding population size, social dominance and individual survival in winter flocks, and interrelationships of social systems between the seasons. Population levels on the breeding area, Beaver Mountain, Cache County, exhibited marked fluctuations from year to year; and males significantly outnumbered females in these populations. Cassin's Finches nested in colonies that varied in size from 9 to 20 nests. Adult males in reddish plumage predominated in breeding; but, if lost from the population or experimentally removed by shooting, they …

The Effects Of Regulated Livestock Grazing On Waterfowl Production, Mark A. Hilliard

Biology

Waterfowl nesting was studied on the Salt Creek Waterfowl Management Area in Box Elder County, Utah, during 1970 and 1971. Ungrazed nesting habitat was studied in 1970 which was subsequently grazed the following winter. Nesting in 1971 was studied on the same area for variations attributable to effects from grazing. During winter 1969-70, cattle were held in pilot plots to study their behavior during winter-grazing on marshlands. Ten plots were grazed at varying rates during winter 1970-71. Warming mid-January weather thawed much of the marsh both years of the study and cattle were restricted to drier sites, resulting in severe …

A Comparison Of Sampling Techniques For Characterization Of Desert Communities, Constance V. Braun

Biology

An enumeration of a 0.99 ha plot of Southwestern Desertscrub, Lower Sonoran, paloverde-sahuaro perennial vegetation in Arizona contained 1690 individuals in 13 species providing a coverage of 21 percent of the area. Analysis of the enumeration plot by Importance Values (relative frequency + relative density + relative cover dominance) shows that Larrea divaricata and Ambrosia dumosa are the co-dominants in the community, constituting 60 percent of all individuals present. The area was sampled in the field by three methods: point-quarter, line-intercept and quadrats. Point-quarter (90 points) estimates dominance more accurately (10-15 percent error) than density (21 percent). The line-intercept method …

The Development Of Career Exploration Work Simulation Units For Career Education In Grades Seven Through Nine, Gerald Eldon Manwill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to (1) select six vocational areas for Career Exploration Work Simulation Units development, hereafter referred to as CEWSU (2) design mock-up sites for CEWSU construction, (3) specify materials to be used in the mock-up, (4) describe tasks to be completed in the simulation exercises, (5) construct six CEWSU simulation units for placement in junior high school career education programs, (6) gather materials and tools to be used in each of the six CEWSU, (7) develop and program cassette tape instructions and flip charts for the CEWSU, (8) field test the CEWSU, (9) revise the …

Effects Of Fertilizers On Cultured Salt Marsh Plants, Ruppia And Chara, Scott Marshall Stenquist

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Widgeongrass (Ruppia maritima), muskgrass (Chara Sp.), and midge larvae (family Chironomidae) were grown under controlled greenhouse conditions using a solution of Logan tap water, 3000 ppm. sodium chloride, and an algicide-fungicide inhibiter. Soil, vegetation, and invertebrates came from a spring-fed marsh in western Utah. Ammonium sulfate, treble superphosphate, and sewage sludge fertilizers were applied to the plants at 5, 10, 20, 25, 50, 75, 100, and 300 pounds per acre equivalents of ammonium sulfate; 5, 25, 50, 75, 100, and 300 pounds per acre equivalents of treble superphsophate; and 5, 25, 100, 200, 300, 400, 500,700, and …

Characteristics And Genesis Of The Parleys And Mendon Soils Series In Northern Utah, Khalid I. Al-Amin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study was designed to test the genetic theory of soil development of two soils derived from different geological material, but developed under conditions of similar climate, topography, biological activity, and age. An attempt was made to relate the soils characteristics to their present classification. Parleys and Mendon series which developed from Bonneville and Salt Lake Formation, respectively, were selected for that purpose. Along the east side of Cache valley, two pedons representing each of the studied series were selected to have similar soil formers except for their parent material.

Evidently, these studied soils have been developed from different heterogenous …

The Indian Student Placement Program As A Means Of Increasing The Education Of Children Of Selected Indian Families, Geraldine T. Lindquist

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper was: (1) To compare the number of years of formal education of participants in the Latter-Day Saints Indian Student Placement Program with those that had not participated. (2) To see if the number of years a student participates in the Indian Student Placement Program had an effect on the amount of formal education he receives. (3) To compare the future educational and employment plans of the two groups. (4) To see how students evaluated their educational program.

The results showed no differences between the two groups in number of years of formal education, future educational …

The Production And Prevention Of Stomach Ulcers In Rodents, Eric H. Rudrud

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rats given L-Ascorbic Acid in their drinking water prior to and during starvation did not develop severe ulceration in the glandular portion of their stomachs. Control rats which were either nontreated or given deactivated L-Ascorbic Acid developed severe stomach pathology on the starvation regimen.

The present study was based on the finding that food deprivation results in severe rumenal ulceration in rats. Given that L-AA is essential in maintaining tissue integrity and that ulcers are examples of tissue degeneration, the L-AA in large amounts could retard, or prevent, the formation of starvation induced stomach ulcers in rats.

The results show …

A Comparative Study Of Gpa Predictability Using The Japq And The Svib, Kathleen A. Peterson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis was to compare the results from two vocational interest blanks, the Job Activity Preference Questionnaire (JAPQ) and the Strong Vocational Interest Blank (SVIB) in the prediction of grade point averages (GPA) for university students. An investigation was also made to determine if the variable vocational interest would contribute to a multiple r composed of American College Test (ACT) scores and GPA.

One hundred students were administered both instruments and predictions made of their GPA's after the completion of two quarters of classroom study and after the completion of the most recent quarter of classroom study. …

Educational Opportunities For Pregnant Students In Selected Utah Schools, Pearl Bergeson

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

Education of women has been neglected in many ways throughout history. In recent decades educational opportunities for women have been greatly expanded. Women have become leaders in education and compose the majority of public school teachers. In spite of these strides in women's education, and growing educational provisions for both men and women, some special groups remain neglected.

This investigator is particularly concerned with one special group: School-age girls who are pregnant. Special educational needs of most school-age pregnant girls are not being met. These young women often face insurmountable difficulties in the schools.

The Effects Of Herbicidal Spraying Upon A North Central Utah Blue Grouse Population, T. Barry Barnes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of herbicidal spraying upon a North Central Utah blue grouse population were studied. Baseline data were obtained in 1970 and 1971 prior to the spraying on June 2, 1972. The spraying was done to control wyethia (Wyethia amplexicaulis) and black sage (Artimesia nova) which covered 48 percent and 20 percent of the study area respectively.

No differences in blue grouse numbers occurred following spraying with 17 to 20 broods using the area in 1972 compared to 18 to 20 broods in 1971. Total population of blue grouse each year was between 90 and 104 …

Phosphorus Budget Of The Hyrum Reservoir - Little Bear River System, William A. Luce

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Phosphorus concentrations in the water of the Hyrum Reservoir - Little Dear River Watershed were determined by collecting 12 samples every two weeks over a seven month period and analyzing them for dissolved orthophosphate, total dissolved phosphorus, and total unfiltered phosphorus.

The concentrations obtained were used in conjunction with a water budget to determine a phosphorus budget. Apparent major inputs of phosphorus to the reservoir included a trout farm and runoff from agricultural land in the watershed.

Statistical analyses of the data were made to determine what effect precipitation, streamflow, and mileage downstream had on the concentrations of phosphorus in …

Dissolution And Precipitation Of Gypsum In The Soil Under Irrigation, Badier J. Alawi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two soils were used in this soil column study. Yolo loam soil a non-calcareous, non-gypsiferous soil from central California and Vernal soil a calcareous soil from eastern Utah.

Initial studies were conducted where the solubilities of pure CaC0₃ and CaS0₄ ' 2H₂0 were determined in the presence of Logan river water, a KCl solution (2.8 mmhos/cm) and a K₂S0₄ solution (2. 7 mmhos/cm). Gypsum was more soluble in the KCl solution than in the K₂S0₄ solution. The solubility product of both gypsum and lime were determined from the analytical …

Economic Analysis Of The Agricultural Sector In Santa Cruz, Bolivia, Enrique Gómez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A linear programming technique is used to calculate the land allocation that maximizes the returns to the agricultural producers in the provinces Santisteban, Sara, Warnes, Ibanez, and Ichilo, in the department of Santa Cruz, Bolivia, under different sets of prices.

All the input requirements per unit of land and average expected yields are estimated from survey data collected from farmers in Bolivia. Constraints on availability of land and labor are also estimated.

Seven crops are included in the model: soybeans, wheat, cotton, yuca, sugar cane, rice, and corn.

The model is first examined under the set of prices that existed …

Comparison Of Transition Matrices Between Metropolitan And Non-Metropolitan Areas In The State Of Utah Using Juvenile Court Data, Sung-Ik Song

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to use Markov Chains for the study of youths referred to the juvenile court in the metropolitan and non-metropolitan areas of the state of Utah.

Two computer programs were written for creating case histories for each person referred to the court and for testing for the significance of the difference among several transition matrices.

Another computer program, which was written by Soo Hong Uh, was used for analyzing realizations of a Markov chains up to the 4th order; a third computer program, originally written by David White, was used for interpreting Markov chains.

The …

Consumer Surplus And Economic Rent Estimates Of Recreation Value: An Empirical And Theoretical Comparison, Eric R. Meale

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The consumer surplus and economic rent methods of resource valuation were applied to boating recreation in Utah. Total consumer surplus and economic rent values were estimated for twenty-four boating sites. These values incorporate the relationship existing between the variable use cost and the units of activity associated with the site.

Data were collected by a mail survey directed to boaters during the 1973 boating season. Approximately 1,408 questionnaires were analyzed. Additional data were collected from the Utah Division of Parks and Recreation.

Economic rent and consumer surplus were compared by using a common mathematical model and empirical observation. The concepts …

Differential Effects Of Low-Frequency Filtering Of Speech On The Discriminatory Facility Of Sensorineural Hypacusis, David Jenkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A long-standing controversy concerning the pros and cons of selective amplification for the sensorineural hypacusic has been and is now being waged. There exists clinical evidence to the effect that some cases with high -frequency sensorineural hearing loss can receive benefit through selective amplification.

The purpose of this study was to examine several aspects of the speech signal that could be affecting intelligibility when speech is presented at high -intensity levels.

Children's Perceptions Of The Nurse, Nancy Adams Coulter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study is to assess children's perceptions of the nurse as they are related to children's age, the amount of contact children have had with nurses and children's sex.

An oral picture test, consisting of 10 photographs, was administered to 45 children in the Edith Bowen Elementary School at Utah State University. The children were interviewed about their perceptions of the nurses in each photograph and their responses were rated as being positive, negative or neutral.

The findings of this study indicate that although significant differences exist in children's perceptions of the nurse in terms of positive, …

Goals And Locus Of Control Of Female Delinquent And Non-Delinquent Juveniles, Geraldine Bates

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A comparison of perception of locus of control and identification of goals between delinquent and non-delinquent juvenile females was conducted.

The delinquent sample consisted of 20 female students at the Idaho State Youth Training Center. The non-delinquent sample consisted of 20 female students from two Idaho Public Secondary schools. The non-delinquent subjects were paired with the delinquent subjects as closely as possible according to age, religion, education, size and composition of family, and size of home town.

The instruments used were: (l) a background questionnaire, (2) a goal identification questionnaire, and (3) Rotter's I-E scale.

The difference between the mean …

Head Start And School Readiness, Robert Bruce Turner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of compensatory education was studied as it influences school readiness in preschool children. The research was conducted in the Logan and Providence areas of Cache County, Utah, with 44 children who had completed the kindergarten year of school. Twenty-two of the children had participated in the compensatory educational experience of Head Start prior to their kindergarten experience. It was found that there was not a significant difference between the Head Start children and their neighbors in terms of their performance on the Boehm Test of Basic Concepts. Therefore, in terms of school preparedness, the Head Start children seem …

Effects Of An Instructional Program On Concept Attainment Of Middle-Class Pre-Kindergarten Children, Joan Spencer Ross

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to determine if a highly structured instructional program, as a supplement to a more traditional pre-school program would have an effect on the concept attainment of pre-school children. Two groups of eighteen pre-school children, enrolled in the Child Development Laboratory at Utah State University comprised the study sample.

The eighteen children in the experimental group received the instructional program, in addition to the Child Development Laboratory school experience. Standardized pre and post tests were administered to both the experimental and control groups. A standardized test, The Boehm Test of Basic Concepts, was utilized.

An …

Marriage Role Expectations And Religiosity, Gilbert Craig Orme

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper was to determine the effect, if any, of religiosity on marriage role expectations. During the past years, the young person's marriage role expectations have been undergoing a gradual change from traditional type roles to more equalitarian-partnership type roles, Religiosity has been found to have a differing effect on the values of people. It was hypothesized that the more religious a person was, the more traditional he would be in his marriage role expectations. Religiosity was determined using a questionnaire developed by Faulkner and De Jong, Marriage role expectations were determined by using an instrument developed …

Attitudes Of High School And College Females Toward Family Life And Children, Pauline Nelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate the degree of similarity or differences between the attitudes of high school and college females toward family life and children.

Data for this study were collected by administering a standardized questionnaire with 35 items to both groups of students. The students' responses were evaluated and each question analyzed separately.

The findings of this study indicate that the responses of the college sample were more realistic than for the high school sample. Also the high school sample appeared to have more glamorous expectations of marriage than did the college sample.

The Influence Of Selected Socio-Economic Factors On Consumer Awareness, Virginia Anne Dickinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The influence of selected socioeconomic factors on the consumer awareness of women was investigated. An instrument was developed to measure the consumer awareness of individuals. The three areas assessed were awareness of existing problems in the marketplace, awareness of laws that control these problems and sources of help for the consumer when she encounters these problems.

A profile of a woman with low consumer awareness was constructed from the results of the data collected In the study. She will have an annual income of less than $8,000; she will have a high school education or less; her husband will be …

An Investigation Into The Design Qualities, Ecological Requirements, And Potential Use Of Some Native Trees And Shrubs Of The Mountains Of Northeastern Utah, Richard K. Sutton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this paper are threefold: 1) To provide a justification for the increased use of native plants in mountain land development, not only in northeastern Utah, but in the entire western United States. 2) To investigate and delineate what the physical needs of a plant materials list are. 3) To provide a nearly comprehensive list of basically unused plants native to northeastern Utah and to highlight their landscaping potentials based on the earlier investigation.

Also touched upon, to help landscape architectural students and professionals alike, are two cursory case studies and a chapter which deals briefly with the …

Rates Of Food Digestion By Brown Trout (Salmo Trutta) In The Blacksmith Fork River, Utah, John M. Salevurakis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Digestion rates have been measured for brown trout (Salmo trutta Linn.) during summer, fall, winter and spring seasons on the Blacksmith Fork River, Utah. Exponential rates of digestion varied from a gradual rate of -0.2372 to an accelerated rate of -0.6808. Factors found to affect digestion rate most were water temperature and the amount of food in the stomach. The affect of temperature was not clearly isolated. However, the amount of food in the stomach, at the beginning of the digestion study, appeared to have the most pronounced effect. Four of the five digestion rate measurements, with high coefficients …

Vocalizations In A Population Of Green-Tailed Towhees (Chlorura Chlorura), Timothy Andrus Burr

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Studies of vocalizations in a montane population of Green-Tailed Towhees were conducted during the summer months of 1971 and 1972 in Cache County, Utah. The song and call repertoiries of 10 breeding pairs were recorded and analyzed on a sound spectograph.

Males averaged 8.7 different song and 18.2 different not types. Song variation on the population level is high (58 different songs) but the sharing of these songs among the males is low (22.4). Populational note structure is equally diverse but reveals a greater degree of sharing (75%).

Both males and females used three calls, the meow, tick, …

Finite Difference Solution For Drainage Of Heterogeneous Sloping Lands, Fahd Salih Natur

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The two-dimensional problem of tile drainage on sloping heterogeneous lands was considered. The land surface and the impermeable boundaries of the problem were of a general shape. The flow in both the saturated and unsaturated zones was considered and the system was treated as one composite system. The problem was solved by a finite difference numerical method using the successive over-relaxation iterative (SOR) method for the steady state case with no local recharge, and a combined Newton inner iteration and successive over- relaxation outer iteration for the transient state case with local recharge. Both the rising water table and the …

An Economic Analysis Of Demand And Supply For Irrigation Water In Utah: A Linear Programming Approach, Mark Holland Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water provides the lifeblood of Utah's agricultural economy. It Is the subject of much controversy and litigation and yet most opinions on the subject are based on opinions and prejudice rather than upon the basis of sound scientific examination. This paper attempts to provide some of the economic information necessary for sound decisions in the development and use of Utah's water resources with respect to agriculture.

Utah has been divided into ten drainage regions (hydrologic subregions) and the presently irrigated and potentially irrigable land according to land class was estimated for each county or portion of a county within each …