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The Carotenoids Of Leptinotarsa Beetles: Their Identification And Significance To Systematics And Evolution, James Meredith Poff

Biology

The purpose of this study was to examine the carotenoids of species within the genus Leptinotarsa and their host plants, with the anticipation that a knowledge of the pigments and their distribution would aid in understanding the evolutionary relationships within the genus. Three age classes of insects (early fourth instar larvae, pupae, and adults) were used. Samples were extracted with acetone and methanol. Following purification, the carotenes and xanthophylls were separated by solvent partitioning and the carotenoids in each fraction were examined by column and thin layer chromatography and by absorption spectrophotometry. The presence of carotenoids was confirmed for five …

The Effects Of Age And Socio-Economic Status On The Diagnosis And Educational Treatment Of Mildly Handicapping Conditions Of School Children, John W. Kelsey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biasing effects in labeling and recommendations for educational services when factors of socio-economic status and age are manipulated were studied using 50 certified school psychologists in Utah. Subjects received case report information about IQ, behavior and achievement which described a school child in need of services within one of four conditions, Age 7 Socioeconomic status (SES) High, Age 7 SES Low, Age 13 SES High, and Age 13 SES Low. Other potentially biasing variables such as ethnic background, and sex were held constant. No evidence of bias could be found when dependent measures of labeling, recommendations for educational services, and …

The Effectiveness Of Training For Empathy In Pre-Service Teacher Education, John Bruce Jessen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The specific objective of this research was to determine the effectiveness of training on understanding empathy in the teacher training process.

Subjects were Utah State University students enrolled in Elementary Education during winter quarter 1976. The experimental group was composed of 34 subjects and the control group of 27 subjects.

Both groups were administered a pretest. The experimental group then received the treatment which consisted of a training program designed to help them to be able to (1) define, (2) recognize instances of, and (3) to emit empathic behavior. At the conclusion of the training program both the experimental and …

Probability Learning In Prey Selection With A Great Horned Owl And A Red-Tailed Hawk, Deborah L. Mueller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to examine the hunting strategies of birds of prey in a probability learning situation. One great horned owl and one red-tailed hawk served as subjects. Three boxes and associated perches, each representing different potential prey areas, were placed in a room adjacent to the birds' regular housing and served as test apparatus. One box were required to land on a perch in order to gain access to the associated box and to the potential prey. A discrete-trial, self-correction procedure was used. In Experiment I, Box 1 was loaded with a live laboratory mouse on …

Nesting Ecology Of The Redhead Duck On Knudson Marsh, Utah, Thomas Claud Michot

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Redhead duck (Aythya americana) nesting and habitat change was studied in Knudson Marsh, Utah, in 1974 and 1975, and compared with earlier studies from 1950 and 1955 on the same marsh. Water conditions in 1975 were found to be similar to those in 1950, both years of favorable habitat, yet there was a decline in numbers of redheads from 500 pairs in 1950 to 50 pairs in 1975. The number of nests found also declined from 151 in 1950 to 49 in 1975. Water conditions were poor in 1955 and slightly more favorable in 1974, but there was …

Evaluation Of The Nutritional Needs Of The Elderly Residents In Southwestern Utah, Sharon Fisher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biochemical composition of blood and urine and estimated nutrient intake were used to evaluate the nutritional status of 187 fasting, ambulatory elderly residents of five southwestern Utah communities in the spring of 1975. Nutritional assessments included 17 biochemical and 23 dietary parameters. Measurements were also taken of height, weight, and blood pressure.

Mean energy intakes were lower than the RDA for both men and women (1965 ± 527 Kcal and 1513 ± 371 Kcal, respectively), although a majority of the participants were above ideal weight. Cholesterol values above 250 mg/lOO ml of blood were found in 38 percent of the …

Nitrogen Fertilization Studies In Dryland Winter Wheat And Potential Nitrogen Losses From The Soil At The Blue Creek Experimental Station In Northern Utah, Subhawat Intalap

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study compared the effects of nitrogen sources on the available inorganic soil nitrogen, nitrogen movement, nitrogen losses, and wheat yields when nitrogen fertilizers were applied to soil planted to dryland winter wheat at the Blue Creek Experimental Station in northern Utah.

In the fall 1973 soil samplings, the fertilizers producing the largest mineral nitrogen contents in the 0-30 cm soil depths were ammonium nitrate >ammonium sulfate > S-coated urea, when they were broadcast at the practical rate of 56 kg N/ha. There was no increase in the mineral nitrogen at the dee per depths in the fall or at any …

Forage Selection And Nutrition Of Sheep And Goats Grazing In The Tunisian Pre-Sahara, Rudolfo Ricardo Griego

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nomadic pastoralism has been the traditional method of utilizing grazing resources in arid and semi-arid regions of Africa. However, increased sedentarization accompanied by growing human and animal populations during the past two decades is thought to be accelerating the desertification process, or desert expansion. The specific interactions of the grazing animal with this process has been speculated upon but not studied in detail. A comparative study was initiated during the spring grazing season of 1974 to determine sheep and goat nutritional and production responses, as well as patterns of vegetative selection and utilization under the pastoral system currently employed in …

Comprehensive Health Planning In Utah: An Organizational Analysis Of Environmental Health Planning, Marsha J. Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study is to delineate the role of a Utah State comprehensive health planning agency in environmental health planning. The scope and nature of environmental health planning was researched thus defining the data base. Secondary information sources and informal interviews were used as sources for data about the existing situations in Utah which affect the organization of environmental health planning. The analysis of existing situational was presented in five sections: Goals for Environmental Health Planning; Intergovernmental Planning Coordination in Utah; Multicounty Health Districts in Utah; Utah State Agencies Having Responsibilities Related to Environmental Health; and Implications of …

Microbial Bioassay Techniques For Assessing Acid Mine Spoil Amendments For Revegetation, Michael A. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The revegetation of sterile acid mine spoils is a costly and lengthy process due to the many factors (pH, toxic materials, low nutrients, poor soil structure, temperature, moisture, length of growing season, etc.) which impede the establishment of stable plant communities. A microbial bioassay technique applied to soil systems has been developed to allow a rapid (four weeks) and integrated (with respect to nutrients and toxicants) determination of the best amendments for stabilizing mine spoils by revegetation. Using mine spoil from the Blackbird Mine, Cobalt (near Salmon), Idaho, various comb illations of nitrogen, phosphorus, chelators, trace elements, potassium, manure and …

Effects Of Heavy Metals (Cadmium, Copper, And Mercury) On Reproduction, Growth, And Survival Of Brine Shrimp (Artemia Salina) From The Great Salt Lake, Karl A. Gebhardt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to report findings concerning the effects of cadmium, copper, and mercury on the brine shrimp Artemia Salina, of the Great Salt Lake. Metal toxicity was observed in relation to acute susceptibility, growth, reproduction, and hatching of the brine shrimp.

Heavy metal concentrations such as cadmium, copper, and mercury are known to be considerably higher in the Great Salt Lake than those in both freshwater and seawater. No published study has been concerned with heavy metal effects on organisms in salinities greater than seawater (35 grams per liter total dissolved solids). The experiments reported …

Host And Habitat Preferences, Life History, Pathogenicity And Population Regulation In Species Of Protocalliphora Hough (Diptera: Calliphoridae), Terry Lee Whitworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The host, habitat preferences, and life histories of species of Protocalliphora were investigated in northern Utah. The effect of species of Protocalliphora on blood levels (hematocrit and hemoglobin) and weight gains of nestling birds also was studied.

A total of 1,819 bird nests were examined, representing 68 bird species from 10 habitats. Forty-eight percent (869) of the nests of 51 bird species found were infested. Eighteen species of Protocalliphora, including 11 undescribed, were collected.

Birds experiencing a high rate of infestation included most colonial nesters (such as bank swallows and yellow-headed blackbirds), cavity nesters (such as starlings and tree swallows, …

Breeding Biology And Pesticide-Pcb Contamination Of Western Grebe At Bear River Migratory Bird Refuge, Mark L. Lindvall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The breeding biology of western grebe was studied at Bear River Migratory Bird Refuge, Utah in 1973 and 1974. More than 300 nests were located and data gathered on nesting habitat and success. Western grebe at Bear River selected nest sites for nearness to open water of approximately 30 em in depth. At least one young was hatching in 21 percent of the nests. Avian predation and abandonment of nests following drops in water levels caused the greatest loss of nests. Chlorinated hydrocarbons monitored in western grebes showed DDE, DDD, PCB, 1260, and PCB 1254 levels in 24 breast muscle …

Ecology Of The Common Snipe In Northern Utah, Samuel C. Winegardner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study addresses five areas relating to the biology and management of common snipe (Capella gallinago), including habitat requirements, food habits, breeding biology, sexing and aging and census techniques.

The primary habitat requirement of snipe was determined to be areas that were saturated or covered with shallow water. Secondary requirements were vegetation of less than 3 decimeters in height and between 30 and 50 percent density.

Food habit studies determined that snipe selected animal material with larger and more abundant organisms being preferred without regard to species . Plant material appeared to be ingested only incidentally.

Common snipe …

Migration Patterns Of High School Vocational Agricultural Graduates Of Utah In 1949 And A Comparison With Ohio Graduates, Keith L. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of the study was to determine the migration patterns of vocational agricultural graduates in Utah during the first 5 years following their high school graduation in 1969, and compare these patterns with Ohio graduates of 1963. Former graduates of 23 of the qualifying 28 departments were included in this study. A random sample of students were surveyed.

Forty percent of the 1969 graduates were engaged in agricultural occupations or agricultural study in college. A total of 30.6 percent of the graduates had moved from their home communities since graduating from high school. More than 88 percent of the …

Assessment Of Possible Carcinogenic Hazards Created In Surrounding Ecosystems By Oil Shale Developments, Gerald L. Dassler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One of the purposes of an environmental assessment is to foresee potential problems created by the introduction of contaminants into an ecosystem and to suggest appropriate control devices to mitigate the effects of such inputs. In the case of the oil shale industry, very little is known about the potential hazards, especially those related to the emission of organic compounds with carcinogenic potency. The hazards will probably be due to chronic exposures to the emitted compounds and the effects of such exposures are likely to take years to manifest themselves, as is the case with many carcinogenic substances. A precise …

Adjustment Of Persian Students At Utah State University, Homa Aflatouni

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Social adjustment of Persian students in terms of their social participation with Americans is analyzed by correlation and multiple regression analyses with six independent variables. The six independent variables are: education, attitude, time, English, social class, and religion. The results of correlation and multiple regression analyses support some of the hypotheses. The significant finding is that the level of education the Persian students completed before coming to the United States, their attitudes toward the Americans, and the length of stay in the United States are the most important factors while other variables are much less useful.

Nitrogen Fertilization Studies In Dryland Winter Wheat And Potential Nitrogen Losses From The Soil At The Blue Creek Experimental Station In Northern Utah, Subhawat Intalop

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study compared the effects of nitrogen sources on the available inorganic soil nitrogen, nitrogen movement, nitrogen losses, and wheat yields when nitrogen fertilizers were applied to soil planted to dryland winter wheat at the Blue Creek Experimental Station in northern Utah.

In the fall 1973 soil samplings, the fertilizers producing the largest mineral nitrogen contents in the 0-30 cm soil depths were ammonium nitrate > ammonium sulfate > S-coated urea, when they were broadcast at the practical rate of 56 kg N/ha. There was no increase in the mineral nitrogen at the deeper depths in the fall or at any depth …

Aerial Photography In Estimating Waterfowl Populations In Northern Utah, Timothy H. Provan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this project was to evaluate effectiveness of aerial photography as a waterfowl census technique. An aerial photographic pattern was formulated and tested during the spring and fall months of 1971 and 1972 at Ogden Bay Waterfowl Management Area, Weber County, Utah. The reliability and feasibility of the technique for censusing waterfowl proved effective and practical.

Eight flights per season, 4 routes per flight, and 30 photos per route taken over unit 1 of the Ogden Bay Waterfowl Management Area was the experimental design or pattern for the study. The level of accuracy and the cost involved with …

Development Of A Water Quality Model Applicable To Great Salt Lake, Utah, Craig T. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The development of a model capable of predicting the long term (seasonal) distribution of water quality constituents within Great Salt Lake was undertaken as a portion of the ongoing Great Salt Lake project at Utah State University. The overall goal of the project is the development of a modeling framework to assist the relevant decision making bodies in the comprehensive management of the Great Salt Lake system. Phase I of the project provided the overall structural framework for management of the Great Salt Lake system, identified data needs, and established priorities for the development of submodels for incorporation into the …

Plant Demographic Studies Of Tall Threetip Sagebrush-Grass Vegetation On The Eastern Snake River Plains, Idaho, Kenneth Harold Rea

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It has commonly been assumed that grazing decreases the longevity of plants, however, very few studies address this question. Knowledge of mean age, longevity and other aspects of population dynamics would help improve estimates of productivity and nutrient cycling and aid understanding of range condition and trend. These data would also aid in developing a theory of community organization and control.

As a step toward these ends, pantograph records from twelve 1 m² plots established at the U. S. Sheep Station on the Snake River Plains of southeastern Idaho between 1923 and 1935 were examined. The plots were mapped …

Selected Vitamin Status Of Elderly People In Southern Utah Measured Biochemically And Dietarily, And Correlated To Their Perceived Status, Karen Sims Faddis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to analyze the diets of elderly people in southern Utah. Three types of information were used in the analysis: biochemical, dietary, and the subject's analysis of his diet. Four vitamins were studied: vitamin A, ascorbic acid, thiamin, and riboflavin.

Dietary data was obtained on the four vitamins and compared by sex and by age. Thiamin and riboflavin dietary levels were evaluated using the Index of Nutritional Quality (INQ), to determine the quality of the diet according to the total calories consumed. Seasonal differences between fall and spring data were evaluated.

Plasma vitamin A, plasma …

Plant Demographic Studies Of A Desert Annuals Community In Northern Utah Dominated By Nonnative Weedy Species, David R. Duba

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Field and laboratory investigations were conducted relating to factors controlling distribution and abundance of annual species growing in a disturbed portion of the salt desert shrub zone on fine-textured soils. Dominant species on the site in the two study years were the nonnative, Halophytic, late-summer maturing, Halogeton glomeratus (Bieb.) C.A. Mey., and Bassia hyssopifolia (Pall.) Kuntze. Contrasting amounts of precipitation were received in the two years; in 1974, spring conditions were so dry that two early-maturing, sub-dominant annuals, Descurainia pinnata (walt.) Britton, and Lepidium perfoliatum L. were essentially absent. They successfully reproduced under more favorable 1975 conditions.

Studies on species …

Nitrogen Cycling In A Microcosm Simulation Of The Northern Arm Of The Great Salt Lake, John C. Stube

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen cycling was studied in the hypersaline northern arm of the Great Salt Lake (332,480 mg/l total dissolved solids) using a sediment-water microcosm simulation of that system. The study demonstrated that nitrate, ammonia, and urea were not stimulating to the halophilic bacteria in the microcosm. The bacteria were simulated only indirectly simulated bacterial growth. In addition, no nitrification could be demonstrated during the study.

Weekly analyses of water samples from the north arm of the lake itself showed that nitrate and nitrite were absent, leaving ammonia as the only significant form of inorganic nitrogen in the northern lake basin. Other …

Error Patterning And Hypothesis Behavior Of Children And Pigeons In Discrimination Learning, William Robert Jenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Characteristic distributions of errors across fixed ratio schedules of reinforcement were studied for two types of discrimination paradigms. Two experiments studied error patterns as a function of hypothesis behavior in two species of animals, children and pigeons.

Three key zero-delay matching-to-sample and two key simultaneous discrimination were reinforced for both species of animals on fixed ratio schedules of reinforcement. Experiment 1 involved children on matching-to-sample and simultaneous discrimination, and Experiment 2 involved pigeons on matching-to-sample and simultaneous discrimination. Both species of subjects experienced experimental conditions in which shift or stay response hypotheses were selectively reinforced using a high speed digital …

Religious Commitment And Meaning In Life, Merrill L. Barfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate the relationship between meaning or purpose in life as measured by Crumbaugh's Purpose in Life Test, and the degree of religious commitment of college students, with particular interest in the members of the Church of Jesus Christ of Latter-day Saints (LDS). Religious commitment was measured by Hoge's Intrinsic Religious Motivation Scale (IRM).

Two hundred and fifty-five undergraduates, 122 males and 132 females, enrolled in introductory psychology and sociology classes at Utah State University during spring quarter, 1975, served as subjects.

A two-way analysis of variance calculated separately for the LDS and non-LDS …

Strengths Enhancement Training: Self-Concept And Self-Actualization, Tony J. Strelich

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The strengths enhancement training program was developed and evaluated in order to determine empirically if a group method designed specifically to assist subjects in the identification of personal strengths, resources, and potentials, would be effective in broadening their perceptions of themselves in a positive direction.

The strengths enhancement training program was based primarily on the work of Herbert A. Otto, using the Multiple Strengths Perception method as the central component of the training program. That method was pilot tested, and program modifications were made on two occasions.

A pretest-posttest control group design was used to assess the 80 Introductory Psychology …

Some Characteristics Of Female College Students Who Select Academic Majors In Fields Of Exact Science And Non-Exact Science: A Longitudinal Follow-Up, Paul David Warner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The present study, conducted in 1974, was a longitudinal follow-up of two groups of female subjects who had participated in an earlier study (Wright and Johnson, 1960) while the subjects were university students. One group of the subjects had majored in fields considered at that time to be traditionally feminine majors, i.e. social sciences, art, music, education, homemaking, etc. The other group had majored in fields of exact sciences, which at the time were considered more traditionally masculine. The purpose of the present study was to determine whether differences noted in the 1960 study will exist between these two groups …

Quantitation Of Aliphatic Aldehydes In Rancid Turkey Meat Using A Substituted Hydrazone, Stanley J. Andrews

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many objective chemical tests have attempted to correlate with organoleptic evaluation of oxidative rancidity. Major chemical tests used to detect oxidative rancidity of lipids measure nonvolatile high molecular weight carbonylic substances which make no considerable contribution to rancid flavors. High molecular weight carbonyls are present at much greater concentrations than volatile low molecular weight carbonyls. Peroxides and other unknown substances also react in these chemical tests to give at best an empirical evaluation. A 3-methyl-2-benzothiazolinone hydrazone chemical test is proposed which corrected some deficiencies of earlier procedures, and was correlated with organoleptic evaluation of rancid turkey samples. The proposed test …

Some Effects Of Mechanical Deboning On The Composition And The Bioavailability Of Protein And Iron In Turkey Frame Meat, Lowell C. Allred

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Meat was obtained from a single daily lot of turkey frames by mechanically deboning with a Beehive AU 4171 deboner and by hand deboning. The meat was analyzed for protein, fat, moisture, ash, iron, calcium, and 19 amino acids. Mechanically deboned turkey had 68 percent more ash, 74 percent more iron, and nine times more calcium than the hand deboned turkey meat. Other constituents were about equal in the two products. Protein bioavailability tests, including protein efficiency ratio, biological value, net protein utilization, and nitrogen efficiency for growth, did not reveal significant differences between mechanically deboned and hand deboned turkey. …