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Studies Related To The Control Of Anacamptodes Clivinaria (Guenée) (Lepidoptera: Geometridae), Harold W. Flake

Biology

Economic importance Anacomptodes clivinaria (Genee) is a serious pest of curlleaf mountain mahogany (Cercocarpus ledifolius) and bitterbrush (Prushia tridentata). Mountain mahogany and bitterbrush are important browse plants for wildlife and for watershed protection. In the winter, curlleaf mountain mahogany may serve as the major food source for wildlife because the leaves are retained year around (Flook, 1955). The deer and antelope winter ranges are some of the limiting factors in herd size and must be protected. Smith (1957) reported that curlleaf mountain mahogany has one of the highest percent nutrients of any winter browse plant for …

The Distribution Of Sialic Acid In Selected Tissues And Body Fluids During The Female Reproductive Cycle, Donald Reed Jensen

Biology

An intriguing and dynamic chapter in the history of biochemical research concerns the acylated derivatives of neuraminic acid, the so- called "sialic acids." These substances have been found to occur naturally as constituents of a wide variety of mucoproteins, mucolipids, and related compounds. Because of their vast distribution throughout the animal kingdom, considerable attention has been focused on the chemical, physical, and biological properties of these acids. Attendant studies have shown the functional integrity of certain of the protein and lipid conjugates to be dependent on the presence of sialic acid residues, thereby assigning physiological importance to the acylated derivatives …

The Search For Consensus, M. Judd Harmon

Faculty Honor Lectures

PROFESSIONAL political scientists develop a particular way of looking at the world and interpreting its events. Because of the forces which act upon us all, the view may be excessively narrow, its importance may be exaggerated, and it may be inaccurate as an interpretive device. Yet it is a key to understanding for the person who employs it. He inclines to view all public problems in its light and tends to assume that the solution of social problems is contingent upon an adequate understanding and appreciation of it.

My own view, and I make no claim to originality in expressing …

Inoculation Method And Treatments Which Increase The Sensitivity And Precision Of The Infectivity Assay Of Tobacco Mosaic Virus, Calvin Ray Lamborn

Biology

The active research in cell-free virus synthesis at this university has placed great emphasis on an improved procedure to assay virus infectivity. The conventional method used (finger inoculation) was simple, but low insensitivity and precision. Infectivity assays of plant viruses are complicated by large differences in susceptibility among local lesion hosts. Factors influencing the susceptibility are the age of the host and the environmental conditions under which the plants are grown, such as temperature, humidity, soil moisture, nutrition and lighting. Another problem is to get the virus into the host cell. The inoculation method has to cause enough injury to …

Coccidiosis Of Cattle, Datus M. Hammod

Faculty Honor Lectures

The disease known as coccidiosis occurs in many domestic and wild animals. It is of great importance in chickens, in which coccidiosis is one of the chief causes of losses to the producer. In cattle the disease was estimated by Fitzgerald in 1962' to cause an . annual loss of $3,500,000 in calves under one year of age in the 11 western states and $7,500,000 in the seven west north-central states. In making this estimate Fitzgerald calculated that 90 percent of all calves are infected by coccidia, and that the average loss amounted to 75 cents per head on all …

Studies Related To The Control Of Anacamptodes Clivinaria (Guenée) (Lepidoptera: Geometridae), Harold W. Flake

Biology

Economic importance Anacomptodes clivinaria (Genee) is a serious pest of curlleaf mountain mahogany (Cercocarpus ledifolius) and bitterbrush (Prushia tridentata). Mountain mahogany and bitterbrush are important browse plants for wildlife and for watershed protection. In the winter, curlleaf mountain mahogany may serve as the major food source for wildlife because the leaves are retained year around (Flook, 1955). The deer and antelope winter ranges are some of the limiting factors in herd size and must be protected. Smith (1957) reported that curlleaf mountain mahogany has one of the highest percent nutrients of any winter browse plant for …

Studies Related To The Control Of Anacamptodes Clivinaria (Guenée) (Lepidoptera: Geometridae), Harold W. Flake

Biology

Economic importance Anacomptodes clivinaria (Genee) is a serious pest of curlleaf mountain mahogany (Cercocarpus ledifolius) and bitterbrush (Prushia tridentata). Mountain mahogany and bitterbrush are important browse plants for wildlife and for watershed protection. In the winter, curlleaf mountain mahogany may serve as the major food source for wildlife because the leaves are retained year around (Flook, 1955). The deer and antelope winter ranges are some of the limiting factors in herd size and must be protected. Smith (1957) reported that curlleaf mountain mahogany has one of the highest percent nutrients of any winter browse plant for …

School District Reorganization And Consolidation In Cache County, Utah, Grant Richard Bagley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A historical study of school organization and school district consolidation enables both educators and lay citizens to have a better understanding and appreciation of schools as they are today. By studying past developments of a given institution, one can better evaluate current requirements and affect future changes as the needs arise.

The Cache County School System as presently constituted has evolved over the years from a cluster of small independent village schools with separate boards of education to a highly centralized system with one board of education and consolidated schools. The purpose of this study is to trace and analyze …

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 …

Point Flow Measurements In Irrigation Furrows, David Ernest Mortin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A new flow measurement concept is needed to facilitate the study of intake characteristics of the soil under furrow irrigation. Knowledge of the flow rate at various points throughout the furrow length is required but measurement must be made without altering the normal flow regime. Conventional water measuring devices such as weirs, orifices or flumes which require a loss of head in their operation, are usually unsatisfactory because to create a measuring head would alter the normal flow depth upstream thus changing the intake pattern.

The purpose of this study is to develop a simple, reliable method of measuring small …

Consumer Credit Knowledge And Credit Use In A Selected Group Of Married Student Households At Utah State University, Kay Daun P. Edwards

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Consumer credit has become an area of major importance in the financial planning of most, if not all, families in the United States. In absolute amounts, total consumer credit extended had increased more than 11 times, from $5,665 million to $63,164 million, since the end of World War II to 1962; and total installment credit had increased more than 19 times. During the same period disposable personal income had grown only about 2½ times (15).

Pupil Attitudes Toward School, Peers, And Teachers Under Ability-Grouped And Random-Grouped Systems In Weber And Ogden School Districts, Val R. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Attitudes are usually defined as feelings for or against something (Remmers and Gage, 1955). They are very important in the lives of people because they help determine future success in an individual's life. Because of them one works to get the things he wants, one votes for or against certain issues, one joins a cause, opposes something, or attempts to influence others.

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.

Temperature Dependence Of Soil-Moisture Potential, Jacob Willem Kijne

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teachers have noticed that children draw only those objects which they know by name. Doubtless the adult has a similar tendency, exemplified by the researcher, to limit his observations or to relate them to that which can be expressed in the terminology of an existing or newly developed theory. In this thesis the data obtained from studies of the temperature and pressure dependence of the relative vapor pressure over moist soil samples are analyzed by a thermodynamic approach. Not all of the results can be explained completely by means of this tool. Natural systems, such as a moist soil, are …

Estimation Of Optimum Size, Shape, And Replicate Number Of Safflower Plots For Yield Trials, David Ernest Polson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The success of a breeding program depends upon the ability of the plant breeder to not only develop new lines, but also to determine which lines or varieties are superior. For this purpose, yield trials are an important yardstick for determining the value of the trial in assessing the merits of the different lines.

Variation encountered is due to several factors; with true genetic differences, environment, and human error being of major importance. In order for yield trials to give meaningful information on a line or variety, it is essential that variation due to human error and environment be reduced …

A Study Of Thailand's Balance Of Trade 1953-1962, Suchin Worawongwasu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

International trade theory suggests that trade can be advantageous to the industrial as well as to the underdeveloped countries. For the latter, specialization and exchange brings about an increase in total productions.

Thailand, an underdeveloped country, has for the past decade experienced an unfavorable balance of trade. A primary producing country, Thailand principally exports rice, rubber, tin, and teak. Her principal imports are manufactured goods, machinery and transport equipment, mineral fuels, lubricants and chemicals.

The thesis is intended to investigate the causes of this adverse balance of trade. Thailand's four principal exports accounted for an average of 74.7 percent of …

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.

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 …

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 …

Effects Of Pre- And Post-Harvest Applications Of 6-Furfurylaminopurine And N6-Benzyladenine On Physio-Chemical Changes In Lettuce (Lactuca Sativa L.), Hussein Ibrahim El-Mansy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The extent and nature of physio-chemical changes that take place in detached leaves after harvest and during storage have been reviewed and discussed by Osborne (1962) and Rogers (1955). These changes include loss of moisture (Wittwer et al., 1962), chlorophyll degredation (Person et al., 1957), Protein loss (Thimann and Manmahan, 1960), and result in subsequent appearance of the visual manifestations of senescence of plant tissues.

As lettuce, like most leafy vegetables, deteriorates rapidly and steadily after harvest. Loss of quality is inevitable and can only be minimized by rapid handling and with the best possible storage conditions (Pratt …

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 …

Geology Of The Southwestern Part Of The Randolph Quadrangle, Utah-Wyoming, Steven C. Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A detailed study of the southwestern part of the Randolph quadrangle was undertaken in view of the fact that Richardson (1941) mapped a large area of undifferentiated Ordovician rock. Therefore, the purposes of this investigation are: (1) to prepare a more detailed geologic map of the south­western part of the Randolph quadrangle (Plate 1), (2) to describe the struc­ture, stratigraphy, and geologic history of the area, and (3) to relate the geology to adjacent areas.

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 …

Effects Of Temperature On Moisture Conductivity In Unsaturated Soil, Richard O'Bannon Meeuwig

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water moves in soil in response to potential gradients. The basic equation for this movement is the generalized v=-K▽Φ in which v is volume of water passing through a unit area in unit time, K is the conductivity coefficient, ▽, is the gradient operator (vector), and ▽Φ is the potential gradient.

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.

The Economic Contribution Of The Out-Of-State Student To The Economy Of Utah, Joseph Thomas Markowski

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Is the out-of-state college student in Utah paying his own way? Many legislative debates within recent years have centered themselves upon this controversial question without obtaining any definite answers. Articles have been written both pro and con concerning the amount of financial responsibility in higher education that should be assumed by governmental bodies, i.e.: should the state institutions be supported more by taxes or should a greater portion of its costs be covered by student fees with the possible result that fewer students will attend because of higher fees.

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 …

Student Income And Spending Patterns At Utah State University, Jesse Rodney Dansie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A large number of students have entered Cache County to attend Utah State University. These students are of economic significance to Cache County in two ways. First, they are buyers of consumer goods in the Cache County in two ways. First, they are buyers of consumer goods in the Cache Trade Area. Second, they represent a part of the labor forces in Cache County. The magnitude and nature of the economic activity of Utah State University students in Cache County have never been adequately measured.

It is the purpose of this study to develop marketing and economic facts concerning Utah …

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, …

Weight Reduction Problems As Shown By A Review Of Literature And A Survey Of Weight Reduction Groups, Naomi Jensen

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

America has been known throughout its history as a land of plenty . Enough food to feed a rapidly increasing population has been produced continuously . Scientific progress has made it possible for fewer farm workers to produce larger amounts of food both from increased acreage and increased yield per acre . With today's nationwide network of distribution , these foods have been made available throughout all sections of the country . Modern science and industry have taken over many of the processing duties of the homemaker and have done it on a less expensive and a much safer scale. …