Digital Commons Network^™

Activation Of Prorennin At Low Ph Values, Nazar A. Shukri

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rennin is the main milk-clotting enzyme in the fourth stomach of young calves. This enzyme has been crystallized and studied by several workers such as Hankinson, Berridee, and Ernstrom, and found to be heterogeneous. It is a proteolytic enzyme, which exhibits its maximum activity on hemoglobin, bovine serum albumin, and casein in the region of pH 3.4 - 4.0. It has a specificity similar to, but narrower than, that of pepsin.

Molybdenum-L-Histidine Complexes, Jiing-Yun Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

L- Histidine is a very important amino acid and is widely distributed in living systems. In the growth and multiplication of animal cells, it was found that L-histidine is one of the amino acids that must be present. From the kinetic studies of certain enzymes such as chymotrypsin and ribonuclease, it has been proposed that the imidazolyl group of the histidine residue may serve as the basic electron donor, and that the histidine residue in some cases may be the active site of the enzyme. The interactions of L-histidine with heavy metal ions, including Ni (II) (1), Zn (II) (1, …

On The Behavioral Responses Of Free Uinta Ground Squirrels To Trapping, David F. Balph

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biologists often trap animals to obtain information on them. If trapping is selective toward some animals, the information may be inaccurate. Most mammalogists know or suspect that their trapping techniques (reviewed by Hayne, 1949; and Stickel, 1954) contain sources of bias. Since trapping remains the only feasible way to obtain information on many animals, researchers have tried to discover sources of sampling error and refine their techniques. They have found that one major source of difficulty may lie in the behavior of animals. Individual animals seem to respond differently to trapping, both initially and through learning (Geis, 1955; Crowcroft and …

Some Effects Of Accumulated Radium On The Productivity Of Algae, Joseph W. Angelovic

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ionizing radiation from natural occurring radionuclides and cosmic rays has always been a part of man's environment, but at such low levels as to have had virtually no effect. However, with the advent of the atomic age and the advancement of nuclear technology, background activity has measurably increased all over the world. Fallout from nuclear weapons testing, wastes from nuclear reactors, and wastes from the milling of radioactive ores have all contributed to this increase. Due to this increase, many ecosystems and their individual components are now subjected to radiation levels as high as a million times natural background. What …

An Economic Study Of Adjustment Possibilities In Farm Organization And Resource Allocation In The Sevier River Valley In Piute County, Utah, 1961, Gordon L. Langford

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Problems that confront the farmer are varied, but one of the most important is the combination of his possible enterprises so that maximum financial return from farming is obtained. This problem has been made more important in the last decade by the severity of the agricultural price-cost squeeze.

Farmers' total net income, on a national basis, has declined from more than 16 billion dollars to about 13 billion dollars. In Utah, total net farm income has dropped from 91.3 million dollars in 1951 to 36.5 million dollars in 1961. Average net income of Utah farm operators dropped from $5.89 per …

Studies On The Relationship Of Serum Lipids And Dietary Intake Of Fat In Senior Citizens, Lina Wu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A number of research studies have shown that aging is a continuous and cumulative process of biological changes which frequently result in cardiovascular diseases in the older age group. Degenerative diseases of old age such as atherosclerosis and coronary artery diseases appear to be related to abnormal lipid metabolism. The findings which indicate serum cholesterol values rise with age are by no means unanimous. The combined evidence in the literature points out that serum cholesterol of newborn infants is low, then rises steadily with age in both sexes from adolescence through middle age with a higher value in males than …

The Interaction Of Water And Salt Flow In Unsaturated Soils, Mahmoud Hassan Abd-El Aziz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The movements of salt and water, particularly in fairly dry soils or compacted shales, are important processes in both agronomic studies and hydraulics of deep ground water which is important in the location of oil.

An Analysis Of Prices At Utah Livestock Auctions, Mcneil Glenn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

From the time of Don Hernando Cortez, livestock has been one of America's greatest industries. The cattle in Cortez's time were Moorish stock which had been bred for centuries in the Andalusian Plains of Spain.

Following this beginning in about 1521, cattle were bred and brought from South America to Mexico. By 1583 the first herds were grazing in what is now Texas.

This was the beginning of the livestock industry and with it carne the endless search for fertile valleys, waterholes, feed in the winter, long trail drives, cattle rustlers, railroads, range wars, and a great American institution, The …

The Role Of Cooperative Societies In The Economic Development Of India, A. M. Rananavare

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The idea of cooperation is not new to man. It is as old as man himself. Cooperatives are an almost universal form of organization today found in practically all countries and used by people in many ways. The cooperatives are formed to secure low cost credit, to purchase supplies and equipment for farming and household needs, to market products, even to secure many services, like electric power, irrigation, health, and insurance. Cooperatives can be used in many ways to benefit people in the everyday needs of life.

The meaning of cooperation is that isolated and powerless individuals can, by combining …

Demand For Household Water In Northern Utah, 1962, Seth H. Schick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water is not a single use resource. It can be used for completely unrelated purposes. There are four general uses for water: household, industrial, agricultural, and recreational. Since water is an economic good it must be properly allocated among the four uses to maximize the returns to society. Also, There must be proper allocation among competing units within each major use.

Simulation Of Mathematical Models In Genetic Analysis, Dinesh Govindal Patel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In recent years a new field of statistics has become of importance in many branches of experimental science. This is the Monte Carlo Method, so called because it is based on simulation of stochastic processes. By stochastic process, it is meant some possible physical process in the real world that has some random or stochastic element in its structure. This is the subject which may appropriately be called the dynamic part of statistics or the statistics of "change," in contrast with the static statistical problems which have so far been the more systematically studied. Many obvious examples of such processes …

Neutral 17-Ketosteroids And 17, 21-Dihydroxy-20-Ketosteroids In Urine Of University Students, Shon-Hua Yu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Degenerative disease of old age such as atherosclerosis and cerebral hemorrhage appear to be related to abnormal lipid metabolism. Many investigators have studied the role of steroid hormones on lipid and cholesterol metabolism in rats and chickens. The results have consistantly indicated that both corticosteroids and sex hormones play an important role in the regulation of lipid and cholesterol metabolism, in vivo. Serum cholesterol values in humans have been decreased by estrogens, while androgen administration tends to increase circulating cholesterol. Estrogens have been shown to decrease circulating cholesterol and prevent cholesterol-induced coronary atherosclerosis in chickens. A study of the …

Effect Of Fluoride On The Respiration Of Leaves From Higher Plants, Ming-Ho Yu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Studies concerning the effects of fluoride on the metabolism of both animals and plants have been of interest to many workers. In plants, it has been known that fluoride will inhibit the growth, that it will induce chlorosis as an evidence of visible injury, and that necrosis will eventually result. The economic importance associated with fluoride damage has been widely recognized, and, as a consequence, fluoride has become a major problem of air pollution.

Studies Of The Incorporation Of 5-Fluorouracil Into Tobacco Mosaic Viral Rna By Cell-Free Synthesing Systems Isolated From Infected Tobacco Plants, Helen Lu-Sheng Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Research on biosynthesis of tobacco mosaic virus (TMV) ribonucleic acid in vitro has been reported by a number of laboratories (8, 16, 17). Bonner et al. postulated that ribonucleic acid could be synthesized from nucleotides by chromatin extracted from nuclei of pea seedlings (5, 14, 22). The evidence from in vitro synthesis of viral RNA suggested that an enzyme, RNA polymerase, links the four nucleotides (ATP, UTP, CTP, GTP) with viral RNA present as a primer and magnesium ions participating as a catalyst (7, 8).

Geomorphic Features And History Of The Lower Part Of Logan Canyon, Utah, Edmund J. Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Logan Canyon is located east of Logan, Utah, in the Bear River Range. The lower part of Logan Canyon is considered that section of the canyon from its mouth upstream to Tony Grove Canyon, a distance of 22 miles¹, Figure 1. Some tributary canyons of the lower part of Logan Canyon have been included in this investigation because of their relationship to Logan Canyon. Grassy Flat Canyon, a south tributary of Logan Canyon 4.4 miles from Logan, exhibits several geomorphic features related to the geology of Logan Canyon. Because of its extensive use and close association with Logan …

Influence Of Temperature On Protein, Moisture And Fat And Some Other Factors In Charcoal Broiled Meats, Ilene C. Savage

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Due to the increasing popularity of outdoor cooking of meat, there is interest in determining the chemical and physical changes that occur during the charcoal broiling process. Of particular interest is the effect of these changes upon the quality of the broiled meat. Although broiling is not a new method of cooking meat, a review of the literature revealed few reports of scientific work on broiled meats. Some work has been done on the effect of different cooking methods on weight losses, tenderness, palatability, thiamine, protein content, but no reports were found relating surface temperature and cooking time to rate …

Canada Goose Production And Population Stability, Ogden Bay Waterfowl Management Area, Utah, Norman H. Dey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since the development of Ogden Bay Waterfowl Management Area in 1937, the Canada goose (Branta canadesis moffitti) population increased to a peak in 1949 and then declined slightly. Nelson (1954) noted that the decrease in population was probably due to either a change in habitat or increased hunting pressure. In recent years, direct band returns have indicated a high mortality rate in the population. This project was initiated to determine the relative stability of the Canada goose population and to measure, as closely as possible, the effect of a high mortality rate upon the nesting population.

The Role Of The Federal Government In The Industrial Expansion Of Utah During World War Two, Anthony Thomas Cluff

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For ten years the American economy had been depressed. Unemployment haunted economic planners, low production plagued manufacturers, low incomes impoverished wage earners, and everyone hoped for the dawn of new prosperity. It was as if recovery had waited for an untrodden decade to arrive before heralding the new day. The New Deal brought Social Security for old age, insurance for bank deposits, new guarantees for labor, and a score of public work projects, but it did not bring economic recovery.

Cost Of Reclaiming Pinyon-Juniper Rangeland And Its Effect On Cattle Ranch Income, John William Adams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There was a period during the early history of Utah when grasses in some areas grew so tall that it hid grazing cattle and sheep from view. However, mismanagement caused this to change and depleted grassland was invaded by noxious weeds, sagebrush, and pinyon-juniper. This deterioration of choice grassland to less desirable range cover was aided by the attitude of stockmen that pasture was available on a first come first serve basis. As a result of such an attitude and the unsatisfactory condition of ranges, the era of free, uncontrolled use of grazing lands came to a close with the …

Economic Evaluation Of Stockwater Development Practices On Mountain Cattle Ranches In Utah, Robert Max Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The state of Utah is comprised of 52.7 million acres of land of which 86 percent is covered by range vegetation. This rangeland provides part or all of the feed for approximately 430,000 head of cattle and 1,300,000 sheep. Rangeland products constitute from 33 to 40 percent of the agriculture income within the Intermountain Region. Utah's vast rangeland area represents a basic resource of considerable importance to her economy.

International Cooperation In The Economic Development Of Latin America, Antonella Picchio

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As an Italian, with less than a year in the Western Hemisphere, I now find myself with a “mixed” personality. As someone else expressed it, "I am physically Italian, Latin American by adoption, and gaily American." This may well be a good combination for writing a thesis on Latin America. My "Latin blood" may help me in understanding the mentality of the people of Latin America, while my studies in Italy--a country with a long experience as an underdeveloped country--may contribute toward a personal understanding of the problems of poverty, social injustice, and political instability. Three months of experience in …

Concentrate Feed Handling Methods And Costs By Dairy And Beef Producers--Selected Utah Counties, 1961-1962, Kendell W. Brinkerhoff

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah is historically an agricultural state with many resources adapted to livestock production. The beef and dairy industries in Utah account for 40 and 15 percent respectively of the total receipts received from agricultural marketings (7). Utah's resources are less adapted to poultry production compared to livestock production. Nevertheless, poultry production represents a significant portion of the total agricultural receipts. Production of livestock and poultry have expanded beyond the state's capacity to produce concentrate feed to benefit from economy of scale and to increase farm size through intensification. This feed deficit in Utah must be supplied from sources outside the …

The Relative Accuracy Of Estimating The Production Of Dairy Cows As Affected By Length Of Testing Interval And Method Of Estimating Production, Ross M. Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Production records for dairy cows were first based on the yield of butter for a seven day period any time during the lactation. Later, 365- day records based on production for one day in each calendar month came into general use. The records preferred at present are 305- day records based on monthly test day production, but calculated using the centering date method. The centering date estimate is based on milk and butterfat production from two consecutive milkings per month. The sampling day is centered as nearly as possible in the test month period which need not coincide with the …

A Comparative Gas Chromatographic Study Of Venison And Beef Flavors, K. Prakash Reddy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Venison is an important food item in the diet of the people of the United States. Deer is hunted both as sport and for food. Annually, nearly 180,000 hunters go afield in Utah in search of deer. Over 130,000 animals are killed which amounts to an annual harvest of over 15,000,000 pounds of dressed venison. This contributes about 10 1/2 million dollars to the economy of the state from licenses, lodgings, transportation, and other expenses of hunting.

Factors Influencing Elk Distribution On Willow Creek Summer Range, Utah, Duane Eldro Jeffery

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is aimed at gaining a better understanding of the factors responsible for the distribution of elk on summer range, and an analysis of characteristics of preferred habitat. Such knowledge should prove of value in elk management, both in better managing elk herds themselves, and in coordinating their needs with those of other land uses.

Farmers' Reactions Toward Upland Bird Hunting In Two Utah Counties, 1957, Frank J. Calkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Proof that public hunting on private lands is a growing Utah problem is, perhaps, most easily found by driving down any country lane. “No Trespassing" signs come one to a fence post or so it must seem to the pheasant hunter. His quarry is the most popular of Utah's farm game species and, unfortunately, the most popular subject of farmer-sportsmen disputes.

Reasoning that short seasons reduce hunter nuisances and property damage, landowners have long advocated three- to five-day pheasant seasons. And because of this and a former game department concern about overshooting the birds (Utah Fish and Game Commission, 1946) …

An Ecological Study Of The Bear Lake Littoral Zone, Utah-Idaho, Gar W. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past, several projects have been conducted at Bear Lake, Utah-Idaho, by the Utah State University through the Wildlife Resources Department, in conjunction with the Utah and Idaho fish and game departments, the Fish and Wildlife Service , and the National Science Foundation. These projects have dealt primarily with limnology, limnological techniques, fish life histories, fish movements, and bottom fauna in the pelagic and benthic areas of the lake. Subsequently, a littoral zone project was set up to study some of the ecological aspects of the shallow waters of Bear Lake, and some of the influences that this area …

Ecological Factors Influencing Plant Distribution In The Shadscale Zone Of Southeastern Utah, Kamal M. Ibrahim

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The intimate relationship between vegetation and soil has long been a subject of interest. Ecologists, soil surveyors, and ranchers have recognized that vegetation differences are often accompanied by variation in soil types.

The Effect Of Range Condition And Intensity Of Grazing Upon The Daily Intake And Nutritive Value Of The Diet Of Sheep On Summer Ranges Of Northern Utah, Merwyn Mortimer Kothmann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mountainous ranges of the West are commonly used during the summer and have been used in this manner since the settlement of white men over a century ago. Many of these ranges have been mis-managed and are in poor condition. The productivity of these ranges greatly affects the economy of the nation; thus, if ranges in poor condition have a nutritive value lower than ranges in good condition, it results in an economic loss. little work has been done to determine the nutritive value of mountainous summer ranges in good condition compared to similar ranges in poor condition.

Leaf Ribonuclease Activity As Related To Virus Infection, And Ribonucleic Acid Concentration, Andrew Chien-Yau Hsu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ribonucleic acid (RNA) appears to be the entity responsible for infectivity and genetic continuity in certain plant, animal and bacterial viruses. RNA also plays an important role in protein synthesis. The enzymes which are involved in RNA synthesis and degradation have received much attention. Among these enzymes ribonuclease (RNase) has been most thoroughly studied Rnase is widely distributed and has been isolated from many sources such as snake venom, bacteria, the pancreas, and many plant and animal tissues. Most studies with RNase have been concerned with its role in the hydrolysis of RNA in vitro. Therefore, it has generally been …