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Petrology And Mineralogy Of Quaternary Basalts, Gem Valley And Adjacent Bear River Range, Southeastern Idaho, William D. Perkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Quaternary basalts of Gem Valley, Idaho, are present as valley fill (Group 1) and as well defined flows in the Bear River Range (Group 2) east of Gem Valley. Minerals present in both groups of basalts include olivine (Fo₇₃ -Fo₃₉), augite (Wo₄₁ En₃₉ Fs₂₀), plagioclase (An₇₅ -An₄₀), and Fe-Ti oxides. Coexisting pairs of magnetite and ilmenite, and olivine and clinopyroxene in several samples indicate temperatures of crystallization from 958°c to 1167°c. The Group 2 basalts exhibit a cumulate texture with abundant large (2 cm) phenocrysts of plagioclase.

Chemically, the Gem …

Structural Geology Of The Northern Part Of Oxford Quadrangle, Idaho, Jerrold N. Mayer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The northern part of the Oxford Quadrangle, Idaho, includes parts of the Bannock Range to the west and the Portneuf Range to the east. These ranges are separated by Marsh Valley to the north and Cache Valley to the south. Red Rock Pass, the outlet of glacial Lake Bonneville, divides the two valleys. The mapped area is north of Preston, Idaho, and south of Downey, Idaho. The north-south dimension of the mapped area is 5.2 miles and the east-west dimension is 6.4 miles.

The stratigraphic units, within the mapped area, are Precambrian, Paleozoic, and Cenozic in age. The oldest rock …

Biology, Reproductive Potential And The Impact Of Fishing Pressure On The Bluegill Fishery Of Pelican Lake, Uintah County, Utah, Bob D. Burdick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Certain aspects of the biology of two species of fish, bluegill (Lepomis macrochirus) and largemouth bass (Micropterus salmoides), and the assessment of fishing pressure upon the sport fishery of Pelican Lake, Uintah County, Utah, a 680 ha warmwater lake, were studied between April 1, 1976 and June 30, 1978. The growth rate of bluegills (sexes combined) was fairly rapid; the mean back-calculated total lengths from ages one through nine were 55, 112, 166, 194, 211, 229, 245, 256 and 259 mm. The growth of largemouth bass was 104, 194, 271, 316, 350, 405 and 416 mm …

An Investigation Of Salinity Fluctuations In Soils Of A Northern Utah Marshland, Gary Roy Newman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ogden Bay Waterfowl Management Area is one of many marshlands bordering the Great Salt Lake that are extremely important as breeding habitats for North American waterfowl. Salinity, both of surface and interstitial waters, is an important factor in maintaining a suitable habitat within the marsh. For this reason, a study was undertaken to determine the factors affecting the salinity of surface and interstitial waters. A small (approx. 100 acre) subunit was studied extensively to determine; 1) variations in surface water salinity with flowrate and water level; and 2) variation in interstitial water salinity with depth and location within the subunit. …

Changes In Spider Community Attributes Along A Subalpine Successional Gradient, Gerald Norman Waagen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The spider communities of four stages of a successional sere leading to and including spruce forests were studied in northern Utah. Four seral stages were recognized. These include: meadows, aspen (Populus tremuloides) stands, subalpine fir (Abies lasiocarpa) forest, and the climax Engelmann spruce (Pica engelmanii) forests.

During the snow-free periods of 1976, 1977 and 1978, 15,987 spiders were collected by three methods including: pitfall traps, by beating vegetation, and with sweep-net samples. Additionally, 1600 15-second intervals of behavioral observations, and measurements of 182 web locations were made.

Of 99 species collected, 44 were considered …

The Toxicity, Metabolism And Distribution Of Carbaryl In Three Species Of Labops With And Without Piperonyl Butoxide Treatment (Hemiptera:Miridae), Deifalla H. Osman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Carbaryl toxicity, metabolism, and distribution in adults of three species of grass bugs from the genus Labops were studied in relation to species, sex, and treatment with piperonyl butoxide. LC₅₀ values for 8 hour exposure periods ranged from 0.02-0.14, 0.03-0.3, and 0.2-0.7 μg carbaryl/vial for L. utahensis, L. hirtus, and L. hesperius respectively. The males were more susceptible to carbaryl than females. Males of L. utahensis were more susceptible than L. hirtus and L. hesperius respectively.

The synergist difference values (LC₅₀ of carbaryl alone - LC₅₀ values of carbaryl after piperonyl butoxide treatment) were measured. …

Integrative Ability As It Relates To Problem Solving Strategies: A Study Of Possible Factors Affecting And Affected By This Ability, Ann King

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Individuals within the United States Forest Service, the National Park Service, the Bureau of Land Management, and state park systems were studied to determine their integrative orientation (general problem solving strategies). This orientation involves a preference for trying new ideas, working within a long time frame, generalizing in planning or managing, taking risks, working in close association with others, examining many aspects of a problem, working on difficult problems, developing a variety of skills, and working on problems requiring continual revision. An attempt was made to relate this orientation to education, major field of study, agency, time, tasks, level in …

A Μ-Model Approach On The Cell Means: The Analysis Of Full, Design Models With Non-Orthogonal Data, Richard Van Koningsveld

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This work considers the application of a µ-model approach on the cell means to a special yet important class of experimental designs. These include full factorial, completely nested, and mixed models with one or more observations per cell. By limiting attention to full models, an approach to the general data situation is developed which is both conceptually simple and computationally advantageous.

Conceptually, the method is simple because the design related effects are defined as if the cell means are single observations. This leads to a rather simple algorithm for generating main effect contrasts, from which associated interaction contrasts can also …

Development And Validation Test Of A Mule Deer Habitat Rule, Glenn Gephart

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A mathematical description of Rocky Mountain mule deer (Odocoileus hemionus hemionus) habitat was developed and subjected to validation testing using correlation and multiple regression statistical techniques. Data were collected on a central Utah study area, which was divided into mountain and desert regions.

Data on deer utilization and several habitat components from 86 study plots visited in 1976 were used to develop a habitat rule. Data from 46 study plots visited in 1977 were used to test the accuracy of the rule. Deer utilization was determined from pellet group counts on 20 0.001 ha pellet plots at each …

Turbidity - Suspended Sediment Relations In A Subalpine Watershed, Thomas A. Holstrom

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of particle size distribution of suspended sediment vii upon a turbidity reading at a known concentration has been relatively quantified for stream bank materials on the Moccasin Basin - North Fork Fish Creek (MB-NFFC) Watershed, located in northwestern Wyoming. As expected, an increase in the median particle size in suspension results in a decrease of turbidity at a given concentration. The relationship derived correlates the particle size distribution of a chemically dispersed stream-bank material sample, with the Coefficient of Fineness for a mechanically dispersed portion of the sample.

Information Transfer And Regulation In A Model Ecosystem With Environmental Stochasticity, M. Mckee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The concept of regulation in ecosystems has been given considerable attention in the ecological literature, but no formal treatment has been offered. This study proposes a rigorous definition of regulation which is derived from the mathematics of information and communication theory. A theoretical, mathematical equivalent of the definition is also offered which implies serious limitations as to the value of most traditional laboratory population studies and deterministic population models in understanding regulation in ecosystems. The empirical validity of this theoretical equivalence is tested through use of a competition model of two diatoms. Other observations concerning the relationship between environmental variability …

Some Effects Of A Grazer, Hyalella Azteca On Ecosystem Level Properties In Aquatic Microcosms, Martin D. Werner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study to determine some ecosystem level effects of an aquatic invertebrate grazer, Hyalella azteca, was performed in aquatic ix microcosms. Impact of the grazer was assessed in three general areas: 1) inorganic nutrient levels of the microcosm water column, 2) productivity and respiration of the biotic community, and 3) plant community composition in the microcosms.

The grazing amphipod caused inorganic phosphorus and nitrogen (except ammonia) levels to be elevated in the microcosms. The increase was due, at least partially, to excretion of nutrients into the water by the amphipod. The presence of H. azteca did not significantly …

Two Basic Methodological Choices In Wildland Vegetation Inventories: Their Consequences And Implications, Donald Alan Shute

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In designing inventories of wildland vegetation, two of the many basic methodological choices are: 1) whether data are collected, reduced, and stored in discrete classes or as continuous variables, and 2) whether data are gathered as general purpose variables to bear upon many questions, or as specific purpose variables optimized for only one type of prediction. The effects of these two choices on accuracy of vegetation inventories to predict plant community production were examined by comparing regression models built upon differing sets of independent variables "inventoried" from a common data base. Contrary to expectations, discrete variables of classified community types …

Interrelationships Between Benthic Macroinvertebrates And Habitat In A Mountain Stream, John M. Payne

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study to determine habitat differences of benthic macroinvertebrates was conducted on the upper Strawberry River, Utah. The investigation was part of a large scale project to determine minimum stream flow requirements for trout. The effects of time, habitat, depth and velocity on the distribution of benthic fauna were evaluated.

Samples of benthic invertebrates (146 total) were collected every 2 months at 8 stations on the river from November, 1975 through August, 1976. Representatives of 59 taxa were collected. Eight taxa comprised 90 percent of the mean annual community standing crop in numbers. Biomass was not dominated by any group …

Spectral Signature Studies For Application In Deer Census Using Remote Sensing Techniques, Maran C. Pate

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was performed to determine the spectral signatures of deer and their natural background elements for censusing purposes. Consideration was given to atmospheric transmittance, acceptable flying weather, and terrain. Possible spectral bands between 0.3 and 14.0 μm were obtained (over a pathlength of 1500 feet at an altitude of 5000 feet) based upon atmospheric transmittance using the LOWTRAN 3B computer program. They are: 0.30 - 1.33, 1.49 - 1.79, 2.00 - 2.50, 3.00 - 3.16, 3.38 - 4.10, 4.59 - 5.05, and 8.00 - 13.33 μm, for transmittance greater than 75%. Weather conditions are favorable for flying and taking …

Effects Of Forage Availability On Voluntary Intake And Feeding Behavior Of Grazing Heifers, Anastasios S. Nastis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forage intake by animals is an important factor in determining production of livestock products from rangelands. However, relatively little is known of effects of such forage variables as availability and distribution in space upon intake. Even less is known about how the grazing animal modifies its feeding tactics when confronted with diminishing or limited supplies of available forage and how such altered behavior may affect the animal's energetic cost for existence. Forage intake, body weight gain, grazing time and biting rate of Angus heifers was related to forage availability and plant height on semiarid crested wheatgrass rangeland during the late …

Effects Of Varying The Opportunity To Attack During A Fixed-Time Schedule, Phillip G. Muller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three White King pigeons were exposed to a fixed-time 120-second food delivery schedule and a live target pigeon. In order to evaluate whether induced aggression can take place in time periods other than immediately after food delivery, the target bird could be attacked (l) throughout the interfood interval; (2) after fixed post-food times had elapsed, or (3) after random post-food times had elapsed. When target availability was continuous or limited to random 30-second periods of the interfood interval, attacking was greatest after food delivery and decreased thereafter. Attacking did not predominate in any 15-second target access period occurring 15, 45, …

A Comparative Study Of Kibbutz Children's And City Children's Concepts Of Family And Self Within The Family, Rachel Tal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine if any significant difference existed between kibbutz and city children in terms of their concept of family and concept of self within the family.

The subjects chosen for the investigation consisted of 51 pupils in the third and fourth grades from two communities in Israel. The two communities were a kibbutz community and a middle class small suburb community. Raw score data were obtained for the investigation from two testing devices. The Draw-A-Family Test (DAF) was used here in order to gain insight to the subjects' perception of the two concepts under …

Variables Effecting College Enrollment Or Nonenrollment, Randy Jay Mendelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine the reasons why students did not enroll at Utah State in the fall quarter of 1978 when they had listed the university as their first choice among institutions to attend. An equally important purpose was to determine whether or not there were differences in the personal characteristics of the enrolled and nonenrolled groups.

Both students who entered U.S.U. in the fall quarter of 1978 and those who failed at that time to enroll served as samples for the study. A random sample of 150 students per group, 300 students altogether, was employed …

The Effects Of Abrupt And Graduated Temporal Reductions On Academic Behavior, James Pezzino

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The author investigated the effects of abrupt and graduated temporal reductions on academic performance. Six elementary school children who were referred to a remedial special education classroom received token reinforcement contingent on the number of correct math problems answered during daily sessions. A multiple baseline across subjects design with replication of baseline and experimental conditions was employed. The design also balanced the order of exposure to an abrupt reduction in time limits (20 - 5 - 20 min.) and a graduated sequence of time reductions (20 - 15 - 10 - 5 - 20 min.). Children also performed copying tasks …

A Comparative Study Between Department Of Education Assigned-Marks And Accredited High Schools' Assigned-Marks In Alberta, Douglas Harold Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine if there had been a significant change in the academic achievement, as measured by Grade XII grade-point averages, of Alberta's matriculation graduates since the accreditation of Alberta high schools in 1973.

The experimental population consisted of 100, 1971-72 and of 100, 1976-77 matriculation graduates who had graduated from schools in the rural school jurisdictions in Education zone 6; and of 100, 1971-72, and of 100, 1976-77 matriculation graduates who had graduated from schools in the Medicine Hat urban school jurisdiction. All of the students in the experimental population had completed their freshman …

Forms And Patterns Found In A Natural State, Andrew M. Whitlock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This creative project deals with the photographic study of forms and patterns found in a natural state. The photographer has covered a wide geographical area including Logan and Cache Valley, Antelope Island in the Great Salt Lake, Shoshone Falls in southern Idaho and City of Rocks, also in southern Idaho. The objective of this project was to reveal the visual strength of natural forms, or man-made forms acted upon by natural elements, in black-and-white images. Subjects were studied under all seasonal conditions in order to determine the best possible situation for enhancing the aesthetic qualities of the forms and patterns. …

Diffuse Irradiance In The Rocky Mountains At 40° Latitude, Brock Allen Lebaron

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of the parameters effecting diffuse irradiance in mountainous terrain was made. Ground/location parameters of site elevation, ground albedo, elevated horizon and surface tilt were examined under the pertinent atmospheric conditions of clear, polluted, overcast, and cloudy. Measured diffuse irradiance data used for comparisons were taken from fall 1977-spring 1979 at four sites located in northern Utah.

Diffuse irradiance varied with elevation according to the existing atmospheric conditions. For clear sky, diffuse irradiance decreased with elevation due to the shorter optical pathlength, thus less scatter of the direct beam. However, with completely overcast sky, diffuse irradiance increased with elevation. …

Development Of A Liquefaction Opportunity Map For Cache Valley, Utah, Richard J. Greenwood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A liquefaction opportunity map was developed for Cache Valley, Utah. The study was the initial phase to determine the potential for liquefaction in Cache Valley.

The method used in this study to develop the liquefaction opportunity map was based on a procedure developed by Youd and Perkins (1977).

This opportunity map is proposed to be combined with a map delineating liquefaction susceptible soils to produce a liquefaction potential map. The liquefaction susceptibility map is being developed in a companion study.

The liquefaction potential map will assist in the evaluation of earthquake response in general and microzonation in particular. The liquefaction …

Population Limitation Of Jackrabbits: An Examination Of The Food Hypothesis, William R. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study was conducted to examine the importance of forage resources in limiting peak population density of black-tailed jackrabbits (Lepus californicus). The research design combined field studies of jackrabbit diet and vegetation impact with computer simulation of herbivore nutrition and population dynamics. The relationships between available forage, dietary intake, energy and protein balance and population changes were compared for high and low population density. Hypotheses tested were : (1) Dietary composition is unaffected by availability above 10 kg/ha; (2) Jackrabbits do not require more forage than is available at high population densities; (3) Dietary composition is not significantly …

Structural Geology Of Eastern Part Of James Peak Quadrangle And Western Part Of Sharp Mountain Quadrangle, Utah, Steven L. Rauzi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A detailed study was made of the James Peak-Sharp Mountain area, in the southern part of the Bear River Range, Utah. The mapped area is located in north-central Utah between lat. 41°22'30" N. and lat. 41°30' N. and long. 111°42'30" W. and long. 111°46' W. It measures about 3.8 miles in the east-west direction and 8.7 miles in the north-south direction. The area is centered about 22 miles south-southeast of Logan, Utah.

Stratigraphic units of late Precambrian to Mississippian age underlie the mapped area. The Precambrian units include the Mutual and Browns Hole Formations. The Brigham, Langston, Ute, Blacksmith, Bloomington, …

The Covalent Interaction Of Hepatic Metabolites Of The Insecticide Chlordane With Cellular Macromolecules In The Rat And Mouse In Vitro, Alan A. Brimfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This investigation addressed several aspects of the covalent interaction of metabolites of the insecticide chlordane with cellular macromolecules in vitro. Microsomal preparations from the liver of mice and rats were used and covalent binding to microsomal protein and RNA or to added calf thymus DNA was studied. Pure ¹⁴C-labelled cis- and trans-chlordane isomers as well as an isomeric mixture (¹⁴C-cis-chlordane plus ¹⁴C-trans-chlordane 3:1, w:w) were used as substrates for the in vitro system. Biochemical parameters investigated included inhibition of microsomal mixed-function oxidase and epoxide hydratase plus the induction of these enzymes by pretreatment with chlordane …

The Flora Of Leslie Gulch Malheur County, Oregon, James W. Grimes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of the flora of Leslie Gulch Malheur County, Oregon was undertaken to elucidate the relationships of the flora and of the endemic species in the flora, and to determine if these endemic species are restricted to their present distribution by chemical factors of their substrate.

A checklist of native plants and a description of the major communities was made and floristic relationships were studied.

Chemical and mineralogical tests such as emission spectrography, x-ray diffraction and cation-exchange capacity as well as physical tests such as particle-size distribution and gravimetric water content were performed.

The results of the tests gave …

The Economics Of Fertility In Utah, Carl E. Enomoto

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this thesis are to determine the economic forces influencing birth rates in Utah and to compare their influences with those found in similar studies for the United States. To do this, an economic model describing fertility behavior was used. Data for the model was collected primarily from Census Bureau reports for the year 1970.

Input Substitution In The Coal-Fired Electric Power Industry, Mohammad Fatoorehchie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A gradual increase in the price of oil, a decline in the supply of gas, and a lag in nuclear construction leaves coal (a potential major resource for the future energy needs) as a fuel in ample supply. The major portion of the United States' electricity is generated by steam-driven generators where steam is produced by fossil fuel-fired boilers. In 1978, 47 percent of the total electricity generation was fueled by coal, up from 43 percent in 1975. Use of coal in generation of electricity has spawned numerous research projects concerning the economics of the coal-fired electric power industry.

The …