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Measurement Of The Perceptual Rotation Of Visual Stimuli, Floyd W. Stettler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Apparatus for study of the phenomenon of rotation consisted of two rotating turntables constructed to receive disks for presenting varied visual stimuli. Turntables were graduated into 360 degrees for measurement of angular discrepancy in the task of visually matching rotational positions. Subjects from ages four through eleven attempted to match six compass positions for each of three designs--a boxlike house, a straight line, and Bender-Gestalt Figure No. 3.

Errors of rotation were classed as either transpositional or nontranspositional, Transpositional error, involving reversal or mirroring of the directional aspect of the designs, largely disappeared by age six. Non-transpositional error declined rapidly …

The Effects Of Cholinergic And Adrenergic Chemicals On Drinking Behavior (Thirst), G. Ron Norton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Because of inconsistencies in the research literature following Grossman's (1960) demonstration that drinking behavior (thirst) could be modulated by intrahypothalamic injections of adrenergic and cholinergic chemicals, a series of studies were undertaken to clarify the relation between introducing chemicals into the brain and drinking behaviors.

The first study attempted to determine the effect of water deprivation on post-deprivation drink sequencing. It has been demonstrated that 75% - 90% of the water consumed by normal rats is taken during the evening hours (Fitzsimmons, 1957; Stellar & Hill, 1952). Grossman's (1960; 1962a) studies failed to consider normal drinking rhythms and consequently modulated …

Effects Of Controlled Atmosphere Storage On Specific Biochemical Changes In Apricot And Peach Fruits, Bartley Norman Wankier

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of controlled atmosphere storage vs conventional refrigerated storage on the metabolism of Moorpark and Large Early Montgamet apricot and Elberta peach fruits were studied. The controlled atmospheres studied were 0.0 percent CO₂-5.0 percent O₂; 2.5 percent CO₂-5.0 percent O₂; 5.0 percent CO₂-2.5 percent O₂; 7.5 percent CO₂-5.0 percent O₂; as compared to conventional refrigerated storage. Nitrogen percent was assumed to be the difference between the total CO₂ and O₂ content minus 100.

Fruits were periodically removed from the storage and …

The Effects Of Sources And Levels Of Vitamin A And D On Some Aspects Of Sulfur Metabolism, Akbar Malekpour

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two trials were conducted using 48 infant pigs of both sexes. Pigs were taken from the sow when three to seven days old and placed in wire-bottomed metal cages by pairs. Animals in the first trial received synthetic diets containing 100 or 1000 international units of ergocalciferol and 1000 or 4000 international units of retinyl acetate or four or sixteen milligrams of beta carotene per kilogram of feed. Baby pigs in the second trial received the same synthetic diet plus 1000 international units of ergocalciferol (D₂) or cholecalciferol (D₃) and 2000 international units of vitamin A …

Bench Marks From Which Economic Change Can Be Measured For An Altiplano Community, Roberto Julio Gonzalez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is designed to establish bench marks which will facilitate the measurement of impacts of new crop and livestock extension practices on the rate of community development of the village of Achica Bajo, Bolivia. Successful agricultural extension and community development programs require adequate data at the farm and community level. In the absence of a real appreciation for the levels of income and financial needs of the campesinos, it is difficult to institute farm policies such as land tax measures which will have the desired impacts and consequences as well as peasant acceptance.

The study examines human and …

An Analysis Of The Competitive Position Of Cattle Finishing In Utah And Selected Western States, 1969, Stephen L. Olsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah's cattle feeding industry was described by using both secondary and primary data. The primary data were collected through use of a personal interview survey.

Primary data were also collected in Idaho, while secondary data were used for Arizona, California and Colorado.

Intrastate analysis of feeding costs showed definite cost savings were achieved in all states through economies of size.

Interstate analysis of feeding costs showed Utah's larger capacity feedlots to be very competitive with larger capacity lots in other states.

1968 prices for both slaughter and feeder cattle were computed for each state. Prices in Utah were slightly lower …

An Economic Analysis Of Contour Furrows And Gully Checks On The Frail Lands Of Southeastern Utah, Karl A. Simonson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The upper Colorado River drainage system yields approximately 104,000 acre-feet of silt annually to the Colorado River. In an attempt to reduce the silt load, federal land management agencies have installed numerous land surface treatments. A study was conducted to measure the economic benefits of the land treatments near Cisco, Utah, and to compare them to the treatment costs and to develop predictive criteria for estimating the optimum intensity of treatment.

The economic evaluation was done in a benefit-cost framework and the criteria for estimating optimum intensity of treatment was done in a production-function framework.

The land treatments were found …

Dietary Factors And Induction Of Hepatic Microsomal Hydroxylative Enzymes By Organochlorine Pesticides, D. Jesse Wagstaff

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Induction of hepatic microsomal hydroxylative enzymes is an important aspect of detoxication of fat-soluble toxicants. The magnitude of induction depends on numerous factors, such as the nature and dose of toxicant as well as dietary factors. Research was conducted on (1) endrin tolerance in rats, (2) preliminary comparisons of inductive effects of various organochlorine pesticides in rats to select compounds for further study in guinea pigs, (3) general effects of various dietary factors on induction, and (4) effects of ascorbic acid deficiency on induction of hepatic microsomal hydroxylative enzymes by organochlorine pesticides in guinea pigs. Measurements were made of body …

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 …

An Epidemiological Survey Of Avian Tuberculosis In Livestock, Poultry, And Wild Birds In Rich County, Utah, Royal Thair Carver

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was conducted in Rich County, Utah to determine the extent of avian tuberculosis in livestock, poultry and wild birds. Sensitivity was elicited in cattle, swine and chickens by tuberculin testing.

The Mycobacterium avium organism was obtained from tissues and specimens of cattle, swine, goats, chickens, magpies and sparrows.

Methods of eradication of avian tuberculosis and the relationship of avian tuberculosis to mammalian tuberculosis are discussed.

Improvements In The Biological Assay Of Tobacco Mosaic Virus, Calvin Ray Lamborn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bean plants which were most susceptible to tobacco mosaic virus (TMV) were selected from more than 1,000 plant introductions. Thirty-eight percent of the lines tested developed local lesions, an indication of susceptibility to TMV. Six percent were better local lesion hosts than the commonly used bean variety (Pinto). Some lines were nine times more susceptible than the variety Pinto. Selections from P. I. 164353, 165455, 273673, 227379 and 223006 appeared to be the best local lesion hosts. A selection from P. I. 223006 produced lesions which were larger, lighter in color and slower developing than those of any other line …

Brisket Disease: Influence Of Hypoxia And An Induced Calcium-Potassium Imbalance On The Mineral Composition Of Blood, Heart, Liver, Kidney, And Bone, David Eugene Bailey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Brisket disease, an affliction of cattle, is important because of: (1) economic losses, (2) similarities to chronic mountain sickness in humans, and (3) the provision of experimental animals for cardiac research. In afflicted cattle, right cardiac ventricular hypertrophy and dilatation occur and are manifestations of attempted compensation for reduced alveolar oxygen by increasing pulmonary circulation.

Geographic variations in occurrence of brisket disease in Utah indicate that hypoxia is not the sole causative factor. From the findings that afflicted cattle exhibit hypocalcemia and hyperkalemia, and the disease occurs most commonly in wet meadowland environments where potassium is high and calcium low …

Preschool Children's Perceptions Of Dogs And Cats As Pets, Roberto F. Reyes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The perceptions of dogs and cats as held by children were studied in six areas of interest. The subjects were twenty-one males and twenty-one females ranging in age from 3 years 3 months t o 5 years 0 months selected from the Utah State University Nursery School. Responses to six areas of interest: identification, sex characteristics, love and affection, companionship, and therapeutic value, were elicited during interviews using a color picture of a mature German Shepard and mature Siamese cat as visual stimuli. A telephone interview with one parent of the subject was made to assess pet contact of the …

Factors Affecting Mourning Dove Use Of Water In Artificial Catchment Basins In A Dryland Farming Area Of Utah, Norman A. Slade

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mourning dove population of the Howell-Blue Creek Watershed in northern Utah was studied by Norman Slade in an effort to determine why many more doves frequented certain of the 20 fiberglass catchment basins installed in the area.

More doves used basins on the west side of the valley, probably as a result of temperature differences. More doves used those basins surrounded by more land in summer fallow and with fewer basins nearby. Areas in sagebrush were used for nesting.

The number of doves drinking in a particular hour was affected by the presence of predators or antagonists but not …

Paleoecology Of The Lowermost Part Of The Jurassic Carmel Formation, San Rafael Swell, Emery County, Utah, R. Joseph Dover

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Paleoecology of the lowermost Carmel Formation, San Rafael Swell, Emery County, Utah, was studied at nine localmes 2 to 21 miles apart. Eight of the sections contain fossiliferous calcilutites and oölmc limestones in the basal 35 to 135 feet measured. Thickness of the fossiliferous beds ranges up to 10 feet. Beds of barren calcilutites, calcarenites, oölmc limestones, intraclastic limestones, calcareous sandstones, and bedded gypsum, separate the fossiliferous beds. A parallel-bedded, basal quartz sandstone, 0.5 to 7 feet thick, everywhere overlies the Navajo Formation.

Molluscs dominate faunal assemblages. Shells are recrystallised to calcite, but external sculpture is preserved in sufficient detail …

The History Of Raymond, Alberta, Canada, Holger B.C. Tychsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The intent of this study was to preserve the historical heritage of a small Canadian community. The thought that in the strength of a community lies the strength of a nation.

The following things were taken into consideration in giving a complete picture of Raymond: (l) The early history which entailed the parts that the Indians, the whoop-up saga, the trader, the trapper, and the Northwest Mounted Police played in the development of Western Canada and Alberta. (2) The desire of the Government to open the western prairies for settlement which brought the Mormon people who were seeking new homes …

The Effect Of Cattle, Sheep, And Other Factors On Aspen (Populus Tremuloides) Reproduction After Clear-Cut Logging In Southern Utah, Paul A. Lucas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Aspen is the most widespread deciduous tree of the western United States and the aspen type is important for water, forage, and wood products. Aspen reproduction on cutover areas was thought to be hindered by browsing and other factors, therefore a study was conducted to determine the effects of livestock, pocket gophers, disease, and snowpack damage on aspen reproduction during the first three years after clear-cutting. An enclosure was constructed and divided into nine paddocks. Controlled grazing by cattle and sheep was applied to six different paddocks during three summer periods. Three paddocks were protected from grazing. Results show that …

Waterfowl Production On A Spring-Fed Salt Marsh In Utah, Donald E. Mcknight

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Results of past studies on the spring-fed salt marshes of Utah indicated that waterfowl production on these areas was much lower than on Utah's river-fed marshes. Waterfowl production on the newly-established Fish Springs National Wildlife Refuge, a spring-fed marsh, increased considerably, however, after its waters were impounded. It was believed that by determining what caused this increased production at Fish Springs it would be possible to obtain greater waterfowl production at other spring-fed marshes. Consequently waterfowl populations and factors affecting waterfowl production on this marsh were studied during the summers of 1966, 1967, and 1968.

Populations of breeding ducks averaged …

The Desert Bighorn Sheep Of Southeastern Utah, Charles A. Irvine

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In April, 1967, this study was begun in a 211-square-mile area, in the rugged, arid, Red Canyon area in San Juan County, southeastern Utah. Sixteen months were spent in the field to determine the population trend, migration, distribution, and the affect of water on distribution of the bighorn sheep.

No migration was documented, but seasonal shifts did occur. The shifts were due to the availability of water in the free state and in plants. Dry periods forced sheep to remain close to seeps and springs.

Lambing peaked in May and was over by June. Lou lamb mortality and high numbers …

Summer Distribution And Food Habits Of Microtus In The Logan Canyon Area, Utah, James B. Monroe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Field work for the study was conducted in Logan Canyon and the valley at the base of that canyon in Cache County, Utah, during the three summer months of both 1968 and 1969, Microtus pennsylvanicus, found only in the valley, inhabits wet marshy areas. Microtus longicaudus is found in mixed deciduous woods a long the Logan River in the canyon. Microtus richardsoni, which occurs only at the higher elevations, inhabits the subalpine meadows. Microtus montanus inhabits mesic grassy fields in both the valley and Logan Canyon and also inhabits a mixed deciduous woods and tall canary grass ( …

An Analysis Of Forest Service Grazing Statistics And A Case Study Of Public Grazing In Rich County, Utah, Barton F. Bailey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forest Service grazing permits for cattle and sheep were analyzed. A livestock and land resource summary was completed for each non-temporary permit reported on the 98 forests in the twelve western states.

The economic feasibility of private rangeland improvements to offset public land grazing in Rich County, Utah, was analyzed in the second section of this thesis. The internal rate of return for various projects was computed. The internal rate of return was used as an indicator of the economic feasibility to ranchers. These estimates were made on a county basis and do not apply to any particular ranch situation.

Quantitative Evaluation Of Saponin Content In Du Puits Alfalfa Foliage (Medicago Sativa L.) With Trichoderma, Wang Li-Chun

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Selections in Du Puits alfalfa (Medicago sativa L. ) were evaluated for saponin content. The data obtained from the Trichoderma bioassay were converted to saponin values by regressions and standard curves. It was necessary to adjust the concentration of alfalfa extract in the bioassay so that the saponin content in alfalfa was estimated in that portion of the curve showing a marked response to saponin. A different regression was established for each group of low and high saponin plants of Du Puits alfalfa. The standard curve prepared with extract of Du Puits alfalfa used on the basis of its …

The Role Of Agricultural Improvement In Economic Development, Jy Huey Hsu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis discusses the role of agriculture in the economic development of Taiwan. Chapters I and II present and discuss the indicators of economic growth in Taiwan, particularly in the post World War II era. Chapter III analyses Taiwan's natural conditions and the part played by Japan prior to the great war. Chapters IV and V discuss agriculture and its role in Taiwan's march to development. Chapter VI talks about American aid that was provided and Chapter Vll presents the expectations and hopes for the future under the newest five year plan.

Political Problems Of Emerging Rural Subdivisions In Kane County, Utah, R. C. Haycock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The emerging seasonal subdivisions in the rural mountainous regions of Kane County was the focus of this study . A native of Kanab, county seat, the author has been in a position to witness the development of these projects. The desired purpose of the study was to ascertain the degree of involvement of local government and to indicate problems, their solutions and consequences. The problems encountered in analyzing these developments are basically those that must be faced by any new emerging community.

No individual study was discovered that dealt with the specific locality under consideration. Of very recent origin, the …

Effects Of Gold Compounds On Rat Behavior, Jonas Kaye

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Seven rats were trained on Fixed Ratio 20 and two on Fixed Ratio 12 Escape Schedules until a stable baseline was established. Five of the subjects were administered gold thioglucose, three received gold thiomalate, and one was injected with gold, gold thioglucose, and gold thiomalate, allowing for an intrasubject comparison. Colloidal gold appeared to suppress response rate for one or two sessions, while gold thioglucose and gold thiomalate suppressed normal response rates from several to a number of sessions. This response rate suppression was often followed by gradual recovery, although in several subjects recovery of response rate could not be …

Retention Of Conservation Acquired By Instructional Methods, Eight Months After Termination Of Instruction, Wenden W. Waite

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study attempted to determine if subjects that had been instructed in the principle of conservation, maintained conservation after termination of instructions. Using subjects from kindergarten to third grade that had received instructions by use of both concrete example and mental imagery methods. Those S's that received instructions were compared with S's that had received no instructions. A test of conservation was administered to a total of 96 S's approximately eight months after termination of instructions to determine if the scores received on a test of those students that had received instructions exceeded those S's that had not received instructions. …

A Study Of The Difference In Short-Term Memory Between Seventh Grade Students Rated High And Low In The Ability To Acquire Sport Skills, Vera Jeppesen Watkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the possibility that the short-term memory factor may be one of the variables involved in the learning of motor skills.

The subjects of the study were all of the seventh grade gym students at Logan Junior High School who were rated by their teachers as being in the upper or lower one-fourth of their class in respect to their abilities in sport skills. After a short-term memory (STM) test developed by the researcher was administered to this group, their scores were compared to determine whether there was a significant difference between the upper and lower one-fourth.

An …

The Effects Of The Psycho-Social Need For Security On Irrigation Farmers' Behavior And Cognition Related To Water Resources, Dennis Call Geertsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The findings of this study indicated, contrary to expectations, that irrigation farmers who expressed needs for water did not engage in certain types of goal-oriented behavior designed to resolve those needs any more so than did those who did not express these needs. There were four measures of goal-orientation which included: Attendance at meetings about the Bear River Project, actively seeking information about said Project and positive attitude toward development of the Bear River.

There were significant relationships, however, between expressed water needs and worries over the water supply, the experiencing of human problems related to water use and perceived …

Quality Of Beef Roasts: Electronic Versus Conventional Cooking, Frances Glassett Taylor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of breed, backfat thickness, and methods of cooking on quality of beef roasts was determined by sensory and objective methods. Arm and rib roasts from Hereford, Shorthorn, Charolais, and Shorthorn-Charolais animals were cooked by several methods.

Roasts of the ninth to twelfth ribs were all dry roasted at 325 Farenheit. Boned and unboned roasts (sixth to eighth ribs) were cooked by conventional and electronic methods. Only significant results are reported herein.

Objective tests using the Warner-Bratzler shear indicated roasts of Shorthorn animals to be the most tender of the four breeds.

Sensory analysis by an experienced panel of …

Survival And Distribution Of Rennin During Cheddar Cheese Manufacture, John Ta-Chuang Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Residual rennin in cheese whey and curd was measured by using a special sensitive substrate. The substrate was made by reconstituting 6 g NDM in 500 ml of buffer containing 0.2 M CaCl₂, 0.5 M cacodylic acid and 0.2 M triethanolamine at pH 5.7. Cheese curd was blended into a 1:7 slurry (1 part curd, 7 parts water), and 1.67% sodium chloride was added to the whey and slurry to liberate residual rennin from casein. The residual rennin in cheese whey and slurry were determined simultaneously with an identical sample containing known rennin activity. Samples with known activity …