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A Report On The Statistical Properties Of The Coefficient Of Variation And Some Applications, Howard P. Irvin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Examples from four disciplines were used to introduce the coefficient of variation which was considered to have considerable usage and application in solving Quality Control and Reliability problems.

The statistical properties were found in the statistical literature and are presented, namely, the mean and the variance of the coefficient of variation. The cumulative probability function was determined by two approximate methods and by using the noncentral t distribution. A graphical method to determine approximate confidence intervals and a method to determine if the coefficients of variation from two samples were significantly different from each other are also provided (with examples). …

The Effects Of Formaldehyde On The Frequency Of Reversion Of The White-Ivory Mutant Of Drosophila Melanogaster, Ruth Ellen D. Wood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is an analysis of the effects of formaldehyde, a chemical which is both recombinogenic and mutagenic, on white-ivory (wⁱ) a highly mutable allele of the white locus of Drosophila. Formaldehyde is shown to significantly increase the reversion frequency of wⁱ. The results of this investigation differ from earlier observations in three respects: (1) there is a positive correlation between RNA (ribonucleic acid) concentration and reversion frequency in the presence of formaldehyde, but reversion does not appear to be totally RNA dependent; (2) female germ cells are more sensitive than those of the male; …

Selective Breeding Of Honeybees For Alfalfa Pollen Collection: With Tests In High And Low Alfalfa Pollen Collection Regions, William P. Nye, O. Mackensen

All PIRU Publications

No abstract provided.

The Baker Ranch: Glen Canyon National Recreation Area: A History, Lenard E. Brown

Elusive Documents

No abstract provided.

An Approach To Resource Allocation On Wildlands, A. Allen Dyer, Harold Hiskey, N. Keith Roberts, Ross S. Whaley

Economic Research Institute Study Papers

This report presents the results of a project conducted for the Rocky Mountain Forest and Range Experiment Station, U.S. Forest Service. This study entitled "Natural Resource valuation - the conceptual and operational basis for economic analysis in a mUltiple use context" had two objectives: 1) To develop concepts and procedures for determining comparable values of natural resources used in production of goods and services that move through markets. Comparability must be in terms of (a) theoretical framework and (b) stage of production and distribution process. 2) To develop concepts and procedures for determining comparable values of natural resources used in …

The Influence Of Photoperiod On The Flight Activity Of Honeybees, J. A. Kefuss, William P. Nye

All PIRU Publications

No abstract provided.

Should Beekeepers Keep Wild Bees For Pollination?, George E. Bohart

All PIRU Publications

No abstract provided.

Progress Report On Studies Of Hydraulic Geometry Of Large Bed Element Streams, Dean F. Peterson

Reports

This study developed a general method for estimating runoff rates and associated confidence limits of a given recurrence interval for ungaged small urban watersheds. The utility of the method developed was demonstrated through its application to a southeast region of Texas. Some 200 historical rainfall-runoff events from 40 watersheds in the Houston, Austin, Dallas, and Fort Worth urban areas were analyzed. Watershed data such as drainage area, percent of urbanized area channel length, average channel slope, land slope, and soil type are documented. Total rainfall amounts, intensities, durations, and mass-time distributions were determined for each storm and used to develop …

Systems Analysis Of Hydrologic Problems, J. Paul Riley, Diana Averett

Reports

Introduction: Increasing national and international interest in water resources in recent years has stimulated much new activity and progress in hydrology. It is now generally recognized that the science of hydrology is basic to an understanding of water resources problems and to planning for water resources development. Accompanying this demand upon the science of hydrology is an urgent need for improved education at the university level. In resopnse to this need for improved education, the First International Seminar for Hydrology Professors was held at Urbana, Illinois, in July 1969. The Second International Seminar was held at Logan, Utah, during August …

Publications Of The Utah Water Research Laboratory, Utah Water Research Laboratory

Reports

No abstract provided.

The Function Of Social Behavior In Water Resource Development , Wade H. Andrews, Dennis C. Geertsen

Reports

Preface: This report is an analysis of a social survey of the middle and lower Bear River Basin of southeastern Idaho and northern Utah concerning the problem of water resource development in a semiarid region of the Western United States. The survey part of the study, carried out in the summer of 1966, dealt with both general social factors and a specific proposal made by the Bureau of Reclamation for developing water resources of the Bear River. In many respects this proposal and the resulting behavior is typical of other western river basin projects, in some other ways, however, it …

General Catalog 1970, Utah State University

University Catalogs

General Catalog of 1970

Contains course descriptions, University college calendar, and college administration.

General Catalog 1970, Graduate, Utah State University

University Catalogs

General Catalog of 1970 Graduate

Contains course descriptions, University college calendar, and college administration.

General Catalog 1970-1972, Graduate, Utah State University

University Catalogs

General Catalog of 1970-1972 Graduate Bulletin

Contains course descriptions, University college calendar, and college administration.

Are Pschological Principles Useful?(A Guid To The Study Of Human Learning), David R. Stone

Faculty Honor Lectures

To some extent, each person is his own doctor, his own economist, his own historian, his own counselor, his own psychologist, and his own teacher.

It is said that a man who is his own lawyer has a fool for a client. Can the same be said of a man's other roles? At least for learning (which professionally intersects education and psychology) any person may have the goal of helping himself to appreciate and evaluate the role of the learning professional.

A knowledge explosion has taken place in the area of learning, as in the many fields of science in …

Ideal Family Size And Acceptable Contraceptive Devices: A Study Of L.D.S. Student Attitudes At Utah State University, Robert Ray Weber

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

This study was undertaken because of the seemingly large families of the Mormons in Logan, Utah. Until this year I had never been in an area where Mormons made up a significant proportion of the population and had not realized the apparent difference in family size when compared to non-Mormons.

As a member of the Experienced Teacher Fellowship Program, I also had occasion to take two classes in Marriage and Family in the Family Life College at the University, and this also stirred my interest in the subject.

In the process of reviewing the literature on family size (fertility) and …

A Quantitative Study Of The Pathways For Estrogen Biosynthesis In Normal And Transplanted Ovaries, Carl A. Perrin

Biology

This investigation attempts to determine the relative importance of the two most widely accepted pathways for the biosynthesis of estrogens namely the Δ⁴ pathway and the Δ⁵ pathway. These pathways were compared in both normal and transplanted ovarian tissue using the double isotope dilution technique with 7⍺-H³-pregnenolone and 4-C¹⁴-progesterone. The effects of ovarian transplants into peripheral tissue on steroid biosynthesis in vitro, uterine weights, adrenal weights, thymus weights, and estrus cycles in vivo were noted. One ovary from each animal was transplanted to the dorsal aspect of the ear while the other ovary …

Contact Comfort Initiated By The Nursery School Child, Lana Kay Spencer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study focused upon three aspects of child-initiated contact comfort situations; how ofter the contact was sought, with whom or why did the child seek comfort, and what incident seemed to stimulate the child's action. Data was collected from two Utah State University Nursery School Laboratories

It was found that children respond as children in that similarity is greater than differences in utilization of contact comfort.

Contact comfort is an important part of a child's functioning in social situations. The number of episodes to indicate this was substantial.

The objects and persons to whom he turns for contact comfort vary …

Some Aspects Of Geochemistry And Mineralogy Of Bear Lake Sediments, Utah-Idaho, Dean F. Davidson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bear Lake is located in southeastern Idaho and north-central Utah. The lake has a maximum altitude of 5923 feet and an area of approximately 110 square miles. Surrounding the lake are carbonates, shales, and sandstones of lower Paleozoic through middle Mesozoic ages. The many streams and springs that originate in these rocks are probably the main contributors to the chemistry of the lake. Water from Bear River, which flows into the north end of the lake, also contributes to its chemistry.

Quartz, aragonite, dolomite, calcite and clay minerals are the main minerals in the lake-bottom sediments. Quartz is generally the …

Partially Balanced Incomplete Block Designs, Yaw-Tarng Shih

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

In balanced incomplete block designs, each pair of treatments is compared with equal precision, and each treatment is paired with every other treatment an equal number of times with in a common block; A is a constant for all treatments. There is one associate class for each treatment in balanced incomplete block designs. These are the most important balanced incomplete block designs, but the need sometimes arises for others; either because no suitable balanced incomplete block design exists, or because, for example, it is necessary to make some comparisons more precisely than others. We can see balanced incomplete block designs …

A Study To Discover The Supply And Demand Of Industrial Arts Teachers In Utah, L. Gyle Hollingsworth

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

With the increase in population and corresponding growth in school enrollment in the state of Utah, the need for more adequate educational facilities becomes ever more apparent. New schools will have to be built and older ones enlarged in order to accommodate the increasing enrollment and need. As a natural consequence , additional teachers will be needed to fill the positions made available by the expansion of the present educational facilities. This requirement will be supplemented by the need for maintaining the present level of teaching staff in view of the outflow of teachers from the system, some through retirement, …

A Review And Construction Of Career Development Programs In The Elementary School, Chase Driggs

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

Overview

Every child has a right to acquire his own realistic selfevaluation of the career he intends to pursue, and the process of exposure to occupational information should be permitted and encouraged to start at an early age. From this point of view we need to foster concepts and techniques designed to facilitate the vocational maturation of the child. Interaction with counselors, teachers, parents, and community will increase the student's ability to understand the opportunities of the world of work as it relates to his aptitudes and interests and values and to enable him to be more aware of the …

Determining Market Areas For Livestock Grazing, Robert G. Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Differentials between rancher costs of operating on private and public range were studied in an attempt to define market areas for livestock grazing in western United States.

The problem of defining market areas is basically a problem of grouping differentials between rancher costs of grazing on private leased range and National Forests that are reasonably homogeneous and statistically testing differences among means of the different groups.

Several methods were used to group forests with reasonably uniform differentials into market areas for cattle. A grouping of forests which have the same average grazing fee does not, however, yield market areas which …

The Use Of Programed Texts For Remedial Mathematics Instruction In College, Charles C. White

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many universities and colleges have a considerable number of students enroll whose entrance examination scores indicate deficiencies in high school and pre-high school mathematics. The purpose of this study was to investigate the effectiveness of programed texts, as compared with conventional procedures, for teaching basic mathematics to remedial mathematics students. The effects of mental ability, study skills and attitudes on achievement through the use of programed texts also carne under investigation.

For one quarter an experimental group of 73 subjects used a set of three linear programed texts for their sole mode of instruction in mathematics. A control group of …

A Historical Study Of The Demographic Aspects Of Urbanization In Utah, 1900-1960, Kooros M. Mahmoudi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In a historical frame of reference, this is a study of rural-urban migration to demonstrate the process of urbanization in Utah between 1900 and 1960.

This study estimates the amount of internal migration for the state of Utah. Selected demographic variables such as size, age, and sex of the migrating population are studied. Changes in the population composition of the sending and receiving areas as a complement of rural-urban migration constitute the crux of this study.

The indirect methods of estimating the net intercensal migration, census survival and life table survival ratio met hods, are used in tabulations. Limitations were …

The Overwintering Of The Fireblight Bacteria Outside Of Living Tissue In Utah, Sherman V. Thomson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this investigation was to determine the sites of overwintering of Erwinia amylovora (Burrill) Winslow et al. outside of living tissue in Utah. Bacterial isolates were taken from the surfaces of blighted twigs and mummified fruits remaining on the tree; also from internal dead tissue of blighted twigs and mummies, and from soil beneath blighted trees. Each isolate was tested for agglutination with antiserum specific for Erwina amylovora, susceptibility to Erwinia amylovora bacteriophage, production of symptoms in pear seedlings and development of bacterial ooze on green pears.

Both virulent and avirulent isolates were taken from all sites tested. …

Fertility And Family Planning Among Navajo Indian Recipients Of Public Welfare Assistance In Southeastern Utah, Gary Morris Shaffer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A fertility and family planning survey was conducted among the recipients of pub lie welfare ass i stance in San Juan County, Utah. Two hundred twenty-five recipient families out of some 536 families on the list were interviewed during May and June of 1968 by nine graduate and undergraduate students in Sociology and Social Work with the help of Social Welfare workers and Navajo interpreters.

The study was primarily concerned with the following objectives: (1) to study the level and age patterns of fertility of a group of selected Navajo Indians, (2) to investigate the factors which might affect the …

Effect Of Foliar Application Of Urea And Ammonium Nitrate On The Dry Weight And Protein Content Of Maize Plants, Alvaro Fiallos

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Urea and ammonium nitrate were applied to leaves of maize plants growing in growth chambers on nutrient solutions containing three different concentrations of ammonium nitrate. Dry weights, and the soluble protein contents of leaves, sterns and roots we remeasured.

Both urea and ammonium nitrate did increase the dry weights of leaves and stems when ammonium nitrate was used in the nutrient solutions (0.5 and 2.5 mM/ liter). When nitrogen was not used in the nutrient solutions, no increments of dry weight occurred. The protein contents of leaves were increased for plants in the same nutrient solutions that produced increases in …

Spatial Reasoning As Related To Solving "Story Type" Problems, James R. Holder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In this study it was hypothesized that the ability to mentally solve II story type" problems, those presented in the form of sentences, is significantly related to one's spatial reasoning ability and that a weakness in this ability, when tested by the "story type" problems, could be compensated for by training in and utilization of overt "paper and pencil" manipulations.

To test the hypothesis, three measures were used. These were the DAT Verbal Reasoning test--used to control the factor of verbal reasoning, the DAT Space Relations test--used to measure spatial reasoning ability, and two forms of a test composed of …

The Effects Of An Introduction To Psychology Course On College Students' Superstitions And Beliefs Which Have Some Scientific Sanction, Helen Daines Mitchell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study was conducted to investigate the effects of an introduction to psychology course on college students' superstitions and beliefs which have some scientific sanction. The test used was selected from H. K. Nixon's 1925 study on answers to psychological questions and considers 30 statements to be marked true or false.

Subjects used for this study were 100 men and 100 women students in a beginning psychology course at Utah State University, Logan, Utah. The first administration of the questionnaire was given during the first week of the class with a follow-up administration given during the final week of class. …