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Structure And Petrography Of The Tertiary Volcanic Rocks Between Death Creek And Dairy Valley Creek (Box Elder Co.), Utah, E. Matthew Hare

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several volcanic flows lie between Death Creek and Dairy Valley Creek, near Etna, Utah. The major, central portion of the volcanic flows is composed of dacite and dacite vitrophyre. An elongate ridge in the southeastern corner of the study area and several small outcrops in Death Creek Valley are composed of rhyolite and rhyolite vitrophyre. Additional rock types include conglomerate, volcanic ash, and tuffaceous sedimentary rock of the Tertiary Salt Lake Formation, Paleozoic limestone, and Tertiary basalt.

Dacite and dacite vitrophyre samples are porphyritic, containing phenocrysts of plagioclase, quartz, biotite, amphibole, orthopyroxene, and iron-titanium oxides. Rhyolite and rhyolite vitrophyre samples …

Ego Identity Status And Conformity, Joseph J. Hoffman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The relationship between the Eriksonian concept of ego identity status and the social process of conformity was investigated. Ego identity status was measured by the Objective Measure of Ego Identity Status (OM-EIS) (Adams, Shea, and Fitch, 1979). A total of 87 subjects were categorized into one of the four ego identity status groups: Diffusion, Foreclosure, Moratorium, and Identity Achievement. Conformity was measured by peer ratings, and experimental task, and by three self-report personality measures. Two of the conformity measures supported the main hypothesis that those in the less mature ego identity statuses (Diffusion and Foreclosure) would demonstrate the most conformity …

Attitudes Towards Household Task Allocation Related To Time Spent Accomplishing Household Tasks, Robyn Ann Carling

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to analyze the relationship between attitudes toward the division of household tasks and the amount of time spent accomplishing them by Utah husbands and wives. The sample was 200 husbands and 203 wives residing in Iron, Washington, and Salt Lake Counties. A questionnaire was used to measure the respondents' attitudes toward the division of household labor and two, 24-hour time diaries were used to record time expenditures. Hypotheses regarding traditional and non-traditional attitudes related to the amount of time spent in traditional female tasks, traditional male tasks and time spent in all household tasks …

The Relationship Between Milk Composition And Swiss Cheese Yields, Gheyath H. Majeed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Eighty-five samples of milk and Swiss cheese made from the same milk were collected at Cache Valley Dairy Association, Smithfield, Utah, between August, 1979, and July, 1980. The weights of the milk, Swiss cheese and the trim were carefully recorded. The milk samples were analyzed for fat and protein, and the cheese samples were analyzed for fat, protein and moisture. An attempt was made to predict Swiss cheese yields from the fat and protein content of the milk and the moisture content of the cheese.

The data were analyzed statistically by Gauss-Newton non-linear least squares method of iteration. Three formulas …

A Comparative Study Of Seizure Susceptibility And Serum Calcium, Magnesium And Phosphorus Profiles Of Magnesium Deficient Rats, Nicole H. Bernhard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Magnesium deficiency in rats is known to precipitate audiogenic seizures. An unknown mineral factor in a diet mixture was found to substantially reduce the seizure occurence in magnesium deficient vii animals. This was corrected when the same mineral mixture was remade. Subsequently the faulty mineral mixture was discarded. This research .. as aimed at determining the mineral factor responsible for the observed changes in seizure occurence, and also aimed at investigating the relationships of serum calcium, magnesium and phosphorus concentrations to seizure susceptibility. Treatments to change the serum concentrations of these minerals included dietary manipulation, subcutaneous injection of calcitonin, of …

Evaluation Of Heme And Free Iron Binding Agents As Substitutes For Sodium Nitrite In Cured Meat, Farzaneh Vahabzadeh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitric oxide (NO) and carbon monoxide (CO) gases, alone or with oxalate, phytate, or ethylenediaminetetraacetate (EDTA) were tested for antibotulinal activity as substitutes for sodium nitrite in ground pork inoculated with spores of Clostridium botulinum, then abused by storage at 277°C. Nitric oxide with 250 ppm oxalate or phytate was most inhibitory, while NO alone was as effective as 156 ppm sodium nitrite for inhibition of gas and botulinal toxin production in the meat system. All swollen samples contained very low levels of residual nitrite, but nitroso heme and soluble iron content did not change compared with unswollen samples …

Nocturnal Emissions: A Comparative Study Of Male Experiences And Reactions, Barbara Shively Mathews

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This exploratory study examined the differences between males who have and males who have not experienced nocturnal emissions. There were 104 males between the ages of 18 to 41 who participated by completing a sexuality pretest and a nocturnal emissions questionnaire. The respondents' information and education about sexuality, reactions to nocturnal emission ejaculation or the lack of ejaculation, dream frequency levels of nocturnal emissions, and the effect of other sexual outlets upon the frequency of nocturnal emissions were assessed. Results revealed that in this sample the males who did not experience nocturnal emissions had received less sexual information than males …

Linear Regression Of The Poisson Mean, Duane Steven Brown

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis was to compare two estimation procedures, the method of least squares and the method of maximum likelihood, on sample data obtained from a Poisson distribution. Point estimates of the slope and intercept of the regression line and point estimates of the mean squared error for both the slope and intercept were obtained. It is shown that least squares, the preferred method due to its simplicity, does yield results as good as maximum likelihood.

Also, confidence intervals were computed by Monte Carlo techniques and then were tested for accuracy. For the method of least squares, confidence …

Cougar Predation And Ecological Energetics In Southern Utah, Bruce Bennet Ackerman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Diet of cougars (Felis concolor) was studied from December 1978 to August 1981, on a 4500 km2 study area near Escalante, Utah. Prey eaten was determined from analysis of 112 animals consumed as prey, and from 239 cougar scats. Mule deer (Odocoileus hemionus) were the major prey item, comprising 81% of biomass consumed. Lagomorphs, large rodents, and smaller predators were also important components. Cattle comprised <1% of the diet, although commonly grazed on the cougar's summer range. Adult male and juvenile (<1yr) mule deer were killed more often than expected, in fall (P<0.10) and in winter (P<0.005). Cougars were a major cause of mortality of adult deer (41% of all adult female deaths, 35% of male), but only 6% of mortality of juveniles. Selection of prey seemed to be a function of prey vulnerability, rather than one of active choice by the predator.

Motion-sensitive radio-transmitters were placed on 15 cougars, from 3 months to 7-9 years of age. Three parameters of the radio signal were used to determine activity levels during 6843 …

A Study Of Cell Dimensions, Amyloplast Position And Certain Physiological Responses During Gravitropic Bending Of Dicot Stems, Julianne E. Sliwinski

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

If a plant is positioned horizontally, the elongating region responds by bending upward within 10 to 12 h until it is vertical, forming a 90 bend with the stem below. If a Xanthium strumarium L. (cocklebur) plant is placed horizontally, but restricted to that position for 48 h and then released, the bend to the vertical usually takes place within 10 s, suggesting that bending energy is stored in restricted stems. Some plants that do not bend completely to 90° within 10 s do so within 5 min, and other plants can overshoot the 90 mark by as much …

Influence Of Phosphorus And Water Management On Mycorrhiza And Rhizobia In Symbiosis With Legumes, David C. Ianson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mycorrhizal associations are very important to plant growth. This is mainly due to the hyphal stands that are able to utilize concentrations of nutrients that would normally be considered unavailable for plant growth, especially phosphorus. These associations are of great importance in soils that have been disturbed by mineral extraction and are consequently low in available nutrients. The ability of mycorrhizal fungi to form associations on disturbed sites may be dictated by a number of factors: moisture, soil pH, soil fertility (including heavy metal ions), salinity, and plant response.

Two factorial experiments were conducted with the legume Hedysarum boreale cv …

Effects Of Intermittent Reinforcement Upon Fixed-Ratio Discrimination, Tore Lydersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Four pigeons had discrimination training that required the choice of a left side-key following completion of a fixed-ratio 10 an the center key, and a right side-key response after fixed-ratio 20. Correct choices were reinforced on various fixed-interval, fixed-ratio, random-interval, and random-ratio schedules. When accuracy was examined across quarters of intervals (fixed-interval schedules) or quarters of median interreinforcerrent intervals (fixed-ratio schedules), accuracy was usually laver in the second quarter than in the first, third, or fourth quarters. When accuracy was examined across quarters of ratios (fixed-ratio schedules) or quarters of median number of correct interreinforcement trials (fixed-interval schedules), accuracy increased …

An Experimental Analysis Of The Stimulus-Reinforcer Relations In Matching-To-Sample, Roger C. Lubeck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the stimulus-reinforcer relations possible in matching-to-sample, and determined the extent that each relation contributed in the transfer to subsequent matching-to-sample. Fifty three homing pigeons were autoshaped on a single key, with two stimuli, red and green. Forty eight subjects were then divided equally in 12 groups receiving the experimental treatments, and five subjects served as no-treatment controls. Group assignments were first based on autoshaping to either an identity, non-identity, or identity and non-identity stimulus relation. Each stimulus relation consisted of a center stimulus followed by an outer key stimulus. For identity, the center and outer stimuli were …

The California Psychological Inventory And Intrinsic-Extrinsic Religious Motivation, Ken Small

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The focus of the study was to investigate the nature of the apparent inconsistency reported in the literature on the relationship between personality variables and indices of religiosity. The literature indicates that indices of religiosity have been associated with labels both of "desirable" and "undesirable" personality traits to varying degrees, and no definitive conclusions have been thus far reached. The study suggested that the inconsistent evidence has been a result of a narrow definition of personality functioning and a broad definition of religiosity that has not allowed an adequate test of the relationship between personality and religiosity. The study developed …

Word Associations And The Bilateral Electrodermal Responses Of High And Low Repressive Females As Measured By The Mmpi R Factor Scale, Peggy J. Poe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

On the basis of the MMPI R Factor Scale, 16 subjects were classified as high repressed and 14 as low repressed. Subjects were compared on patterns of bilateral differences in skin conductance as a function of three cognitive tasks intended to produce specific manipulations in the relative activation of the two cerebral hemispheres. Tasks 1 and 2 examined the effects of Verbal (left hemisphere) and Spatial (right hemisphere) tasks on amplitudes of electrodermal responses. Task 3 examined the effects of the presentation of double-entendre and asexual stimulus words (designed to produce an emotional stimulus) on the high and low repressed …

Predicting Length Of Stay And Outcome In Long-Term Residential Treatment Of Male Alcoholics, Robert Dombey Wadsworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this study were: (1) to determine which characteristics of male alcoholics are related to treatment success and length of stay in long-term treatment, and (2) to assess the efficacy of predicting outcome and length of stay on the basis of patient characteristics, The study was performed post hoc on 265 patients discharged from a 6- to 12-month residential alcoholism program on the grounds of a state hospital. After an extensive literature review, 19 predictor variables were selected which were most consistently related to outcome and length of stay in previous studies of shorter rehabilitation programs. Data for …

Muskrat Population Levels And Vegetation Utilization: A Basis For An Index, Thomas R. Mccabe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Muskrats (Ondatra zibethicus) are associated with marshlands throughout North America. Their impact on marsh vegetation is well documented. In recent years, research pertaining to marsh ecosystems has emphasized the role of interspersion of marsh vegetation to higher faunal diversity and productivity. Muskrats can provide a natural control of aquatic emergents if managed properly. Experimentation at Fish Springs National Wildlife Refuge, Utah, has attempted to ascertain whether vegetation-utilization index could be used for determining muskrat population levels and to evaluate the impact of muskrats on their primary food resource, Olney's bulrush (Scirpus americanus).

Three known populations of …

Feminine Development: The Relationship Between Identity Status, Personality And Social Influence Style, Doris Anne Read

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of the present research were to investigate the potential relationships between ego identity development, personality characteristics and social influence styles in college women. It was hypothesized that advanced identity development would be associated with more complex personality functioning and effective social influence behavior. Research subjects were classified according to identity status using The Objective Measure of Ego Identity Status. They responded to the Test of Attentional and Interpersonal Styleand engaged in a social influence task with a male or female confederate. The advanced statuses generally demonstrated more complex social-cognitive styles that allowed them to both process large amounts …

Evaluation Of The Perceived Usefulness And Effectiveness Of Psychoeducational Testing Reports At Intermountain Intertribal School, Marvin Bryce Fifield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

By law and according to conventional practice. individual psychoeducational testing is an essential part of the identification and placement process of handicapped students. However, evidence reported in the literature suggests that testing results, especially in the form of testing reports, are rarely fully utilized.

This study was conducted at Intermountain Intertribal School at Brigham City, Utah and demonstrated a method of collecting objective data about the use of psychoeducational testing reports as well as the opinions and suggestions of staff members who used them. More specifically, this study documented:

1. Who the primary users of testing reports were and for …

Inhalant Use Among Native American Adolescents: A Comparison Of Users And Nonusers At Intemountain Intertribal School, John L. Wingert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to investigate a population of identified inhalant users at Intermountain Intertribal School, comparing and contrasting two user groups to a control group of nonusers on a number of selected research variables. The subjects included 42 identified inhalant users. Subjects were further classified into two user groups: one-time users and repeat users, and 20 nonusers. The nonuser group comprised the control group. Each subject was individually interviewed and administered the research and data collection instruments. In addition, other essential information was taken from permanent school records.

A one-way analysis of variance was computed to ascertain …

Transitivity In The Choice Behavior Of Rats, Richard Duus

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the unidimensional assumption underlying choice behavior by examining the transitivity properties of rats' choice behavior. In Experiment 1, two variables of reinforcement, amount and delay, were manipulated simultaneously in a two lever choice situation. The conditions of strong transitivity were not present in either reponse count or indifference-measured choice behavior, indicating that choice behavior was not distributed along a single dimension with ratio scale characteristics. Moderate transitivity conditions were characteristic of both response and indifference- measured choice which was consistent with a single dimension possessing interval scale characteristics. In Experiment 2, only one reinforcement variable, amount, was …

On The Transport Equations For Anisotropic Plasmas, Abdallah R. Barakat

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

First, I attempt to present a unified approach to the study of transport phenomena in multicoponent anisotropic space plasmas. In the limit of small temperature anisotropies this system of generalized transport equations reduces to Grad's 13-moment system of transport equations. In the collisionless limit, the generalized transport equations account for collisionless heat flow, collisionless viscosity, and large temperature anisotropies. Also, I show that with the appropriate assumptions, the system of generalized transport equations reduces to all of the other major systems of transport equations for anisotropic plasmas that have been derived to date.

Next, for application to aeronomy and space …

Petrology And Mineralogy Of Tertiary Volcanic Rocks In The Vicinity Of The Rozel Hills And Black Mountain, Box Elder County, Utah, Elizabeth R. Greenman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two basalt flows and an andesite fissure eruption occur in the Rozel Hills - Black Mountain area in Box Elder County, Utah. Both basalt flows are aphanitic, and contain olivine, plagioclase, augite, and opaque oxides. They may be distinguished both chemically and on the basis of their textures. Unit 2 basalt is finer grained, and appears to be associated with a fault in the Black Mountain area. Chemically, it is similar to high-iron lavas in the Craters of the Moon, Idaho area. It has higher alkali, total iron, and titanium contents that Unit 1 basalt. Unit 1 basalt is similar …

Approval And Disapproval With Children: Limits On The Satiation Phenomenon, Phyllis N. Williamson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research investigated factors that influence the reinforcing or punishing effects of various social stimuli on choice behavior. Previous research has suggested that the extended effectiveness of social reinforcers in modifying behavior is inversely related to the frequency with which they have been administered under noncontingent conditions. The ways in which frequency and contingency may alter the effectiveness of social disapproval had never been previously investigated.

A series of studies was conducted with normal, primary grade children for the purposes of: a) determining the functional relation between verbal stimuli and the child's choice behavior as a consequence of the high …

Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to continue the assessment of the low-temperature geothermal resources of Cache Valley, Utah initiated by the Utah Geological and Mineral Survey. Field work consisted of locating 90 wells and springs throughout the study area, collecting water samples for later laboratory analyses, and field measurement of pH, temperature, bicarbonate alkalinity, and electrical conductivity. Na⁺, K⁺, Ca⁺² , Mg⁺² , SiO₂, Fe, SO₄^-2, Cl^-, F^-, and total dissolved solids were determined in the laboratory.

Temperature profiles were measured in 12 additional, …

Comparison Of Growth In Preterm, Low-Birth-Weight Infants Fed Human Milk Versus Standard Infant Formula From 40-56 Weeks Postconceptual Age, Laurie Jean Moyer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to compare growth following hospitalization in preterm, low birth weight infants fed their own mother's milk versus preterm, low birth weight infants of similar weight and gestational age given standard infant formula upon demand. Growth measurements were taken 40, 42, 48 and 56 weeks postconceptual age.

A total of 28 healthy, preterm, low birth weight infants completed the study. Seventeen infants received standard infant formula (Similac) and 11 were breast-fed upon demand. Introduction of solid foods was delayed until the infant was greater than 56 weeks postconceptual age. Weight, length, occiptial frontal circumference, mid-upper …

Estimating Esterase And Monooxygenase Detoxication By Bioassay, Electrophoresis And Metabolic Studies In Pea Aphid, Acrythosiphon Pisum (Harris) Populations (Homoptera: Aphididae), Deifalla H. Al-Rajhi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The role of esterases and monooxygenase in the detoxication vii processes of field populations of pea aphids was studied in relation to seasonal changes, developmental stage, and treatment with DEF and piperonyl butoxide. LCSO values for 12 hour exposure periods in glass vials ra nged from 0.04-2.3 micrograms / vial and 820-4871 J.Jg/vial for paraoxon and carbaryl, respectively. Topical bioassays showed the adults to be more tolerant to paraoxon (LDSO of 1. 4-12.3 ng/aphid) toxicity than nymphs (LDSO of 0.13-4. 7 ng/aphid).

Treatment with DEF® (S,S.S-tributylphosphorotrithioate) enhanced paraoxon toxicity against the pea aphid whereas piperonyl butoxide had little …

The Effects Of Stochastic Water Availability On Water Allocations In Utah, Gustavo A. Martinez Gerstl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A methodology to estimate stochastic surface water flows was developed and applied to a case study area using chance constrained programming model. The results were analyzed as to the effects on different areas of production in Utah.

Effect Of Three Methods Of Processing Barley On Intake And Production Of Lactating Cows, Carlos Garcia Jauregui

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-four lactating cows were randomly assigned to three treatments within eight each 3 x 3 latin squares with three periods of 21 days duration. Three processing treatments of barley were 1) steam-rolled, 2) ground (fine), and 3) soak-rolled (soaked in water for appr. 24 hours, rolled, and fed within 48 hours). All rations were fed ad libitum and were comprised of 24% alfalfa hay, 16% corn silage, 35.5% barley, 12% whole cottonseed, 12% wheat bran, 0.3% salt, and 0.3% dicalcium phosphate on a dry matter (DM) basis. Electronic doors were used to collect individual feed intake data. Rations and feces …

Habitat Used By Ruffed Grouse In Northern Utah, Judith L. Landry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Vegetation structure of sites used by ruffed grouse (Bonasa umbellus) hens with brood, solitary grouse, drumming males, and nesting hens in northern Utah was measured in 1979 and 1980. Univariate statistical techniques were used to determine general habitat characteristics of each group and discriminant function analysis was applied to the data to differentiate among groups. Most nests were located in maple stands (Acer grandidentatum and A. negundo) with dense tree canopies, low shrubs, and sparse ground vegetation. Drumming logs were most commonly found in densely stocked stands of aspen (Populus tremuloides) mixed with maple or chokecherry (Prunus virginiana) having a …