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Distribution And Taxonomy Of The Pocket Gopher Thomomys Bottae In Bernalillo County, New Mexico, James Lester Sands

Biology ETDs

The purpose of this study are to determine what kinds of pocket gophers of the genus Thomomys occur in Bernalillo County, New Mexico, and to reveal the relationship between the pocket gophers occupying the Sandia Mountains and those occurring in the valley of the Rio Grande.

A Study Of The Utah Pocket Mice Of The Genus Perognathus, Merlin L. Killpack

Theses and Dissertations

The objectives of this study were: (1) to make a detailed study of the distribution of the genus Parognathus in Utah; (2) to determine if any species or races not now recorded occur in the state; (3) to bring together notes on life histories of this genus, both from the literature and field studies; and (4) to determine habitat preferences of the species represented. This paper lists 14 subspecies belonging to 7 species of Perognathus occurring in Utah. One species is a new occurrence record, Perognathus fasciatus callistus, from northeastern Utah east of the Green River. The ranges of Perognathus …

A Preliminary Investigation Of The Taxonomy And The Geographical Distribution Of The Chrysopidae (Neuroptera) Of Utah, Wayne A. Melander

Theses and Dissertations

The writer undertook a preliminary investigation of the taxonomy and geographic distribution of a group of neuropterous insects, the Chrysopidae, in Utah. The main purposes of the investigation were to find what species and forms of these beneficial insects occur in Utah, to provide means for their identification, and to report upon their geographical distribution. Two main methods of investigation were employed. The first, a bibliographic method, was to carefully review the literature concerning the Chrysopidae of the United States for all references pertaining to their distribution and their taxonomy. The second method of investigation was to study insect specimens …

A Study Of Utah Phoridae Diptera, A. Lavell King

Theses and Dissertations

This study was undertaken to determine the present status in Utah of the Dipterous family Phoridae, and to report which genera and species are found there. The work was done with the thought in mind of furthering the knowledae of this little-known family in Utah. In order to secure information about the family the writer studied entomological literature and specimens obtained from the entomological collections of the Brigham Young University and Utah State Agricultural College. Personal collecting in various areas of Utah was also done. During the study it was found that there were six genera and twenty-one species correctly …

Oxidation Of Molybdenite With The Aid Of Microorganisms, Ralph Anderson

Theses and Dissertations

This work represents a study on the biological oxidation of molybdenite, MoS2. The principal objective of this study was to investigate the possibility of the biological oxidation of molybdenite, to determine the physical and chemical conditions under which the oxidative process occurs, and to develop a strain of bacteria or alter the activity of the microorganisms by acclimatization to increase their activity on sulfide minerals, in particular molybdenite. Minerals used in this study were pyrite (FeS2), chalcopyrite (CuFeS2), molybdenite concentrate, and molybdenite ore. The microorganisms used in this investigation were autotrophic bacteria obtained from the leaching streams of Bingham Canyon, …

Supplementation Of Degossypolized Cottonseed Meal In Rations For Growing And Fattening Swine, Richard Travis Piercy

Masters Theses

Introduction: Cotton is one of the major sources of income in southern agriculture. Cotton is the highest income crop in Tennessee and is a leading crop in several other southern states. Because of large scale production of cotton in the South, cottonseed meal, a by-product of the industry, has usually been the cheapest and most plentiful of the protein supplements available for livestock feeding in this area.

In the past the use of cottonseed meal in livestock rations has been limited mainly to the feeding of ruminants. Swine and poultry show the effects of gossypol toxicity when fed large quantities …

A Study Of The Hydra Of Salem Pond, Mary Elizabeth Dumas

Theses and Dissertations

The site of investigation for this work was Salem Pond, Salem (formerly known a.s Pond Town), Utah. It was settled in 1851 by David Crockett and David Fairbanks. Colonization began in 1856 when a fort of adobe and lumber houses was built near the pond, and later, several industries located there, benefited by the water wheels constructed by the pioneers (Huf4 l947).

A Life History Study Of The Spurred Towhee Pipilo Erythropthalmus Montanus, Travis G. Haws

Theses and Dissertations

This paper deals with the life history and distribution of the Spurred Towhee (Pipilo erythropthalmus moutanus Swarth). Research was begun in April, 1955, and terminted in June, 1956. The preferred habitat of this bird is the mountain slopes, canyons. and streamsides covered with a shrubby type of vegetation, usually between 5,000 and 8,000 feet in elevation. Distribution of the Spurred Towhee is throughout the central Rocky Mountain region in the states of Wyoming, Utah, Colorado, Arizona, western half of New Mexico, and into northern Mexico. During the winter these birds are found concentrated in the lower valleys along the streams …

The Reclamation Of Fibers From Blueprint Stock, Joseph A. Boyle

Paper Engineering Senior Theses

Object

A method of reclaiming the fibers from blueprint paper after it has been used in the photocopying precess and the subsequent bleaching of these fibers is sought.

The Comparative Morphology Of The Central Nervous System Of The Larva, Pupa, And Adult Of Epilachnia Corrupta, Raymond F. Moore

Master's Theses

The nervous system of insects has been subject of much study and research. By far the greatest part of this work has been on the orders of Orthopters, Lepidopters, Hymenopters, Diptera, and Coleoptera. This has been limited, in most cases, to a particular stage in the life history of the insect. This paper looks to study the morphology of the central nervous system of Epilachnia corrupta through all its stages in its life cycle.

A Photographic Study Of The Effects Of Beating On Fiber Structure, Gene D. Anderson

Paper Engineering Senior Theses

Because beating is the most fundamental, but highly important, process in the paper industry, some of the changes in fiber structure that occur during beating have been investigated. A literature survey is also presented concerning a number of related investigations of fiber structure.

The experimental results indicate that fibrillation begins very shortly after the beating process is started. As beating progresses, the primary cell wall is removed, and the specific area of the fiber increases greatly when the watery medium encounters the secondary lamella area of the fiber. Continued beating shows that the action is a mechanical one, in that …

An Investigation Of Nylon Fiber As A Papermaking Material, Robert J. Thiessen

Paper Engineering Senior Theses

Investigations were made to determine whether or not a practical method of bonding nylon-wood blend paper could be devised in which advantage is obtained from the strength qualities of the nylon fibers in the finished sheet. Two unsatisfactory methods were tried before a satisfactory method was found. By this method 25-to 50-per cent nylon content sheets were dipped in a five to ten-per cent solids water emulsion of a polyamide resin. The sheets were then dried, free of surface support, and then heat pressed to complete the bonding. Paper of high strength and durability was thus produced.

A Comparison Of Sheffield Instruments For Smoothness And Porosity With Others Now Used, John B. Yonker

Paper Engineering Senior Theses

This report shows that there is a correlation between Bekk and Sheffield smoothness and between Gurley and Sheffield porosity. The correlation is not as good in the upper Bekk smoothness range or in the upper Gurley range.

Birds Of The Brigham Young University Campus, Barid Baran Mukherjee

Theses and Dissertations

This paper deals with the seasonal distribution, relative abundance, and location of the different species of birds which visit or live on the Brigham Young University campus from late summer to early spring, with a brief account of their activities. The upper campus, where this investigation was carried on, covers an area of 201 acres and is situated on a bench at the foot of the Wasatch Mountains. The study was continued from July 13, 1955 to April 15, 1956. A total of 173 hours was devoted to census work and to studying the general ecology of the area. Four …

The Interrelation And Interaction Of Allenrolfea Occidentalis And Its Edaphic Environment, Blaine H. Quigley

Theses and Dissertations

To understand more fully how Allenrolfea occidentalis (S . Wats . ) Kuntze tolerates high salt concentrations and why it grows in hummocks, this study was undertaken . Allenrolfea is a shrubby member of the Sa licorneae subfamily of the Chenopodiaceae family , with practically leafless green succulent stems and inconspicuous flowers .

Photo-Oxidations Sensitized By Physiologically Important Substances, Ernel D. Ihnen

Theses and Dissertations

A study of the photo-oxidation of the 2,6-dichlorophenol indophenol-ascorbic couple was undertaken with a view to investigating the postulated mechanism of oxidation by a component of the oxygen evolving sequence operative in photosynthesis. A spectrophotometric method for the measurement of the progress of photo-oxidation was developed. Temperature and pH dependence were determined and the effect of various common inhibitors and physiological substances tested. None of the common Hill reaction inhibitors were effective in the ascorbic acid photo-oxidation in the system used. KCN and catalase as well as a few other high molecular weight proteins were able to inhibit dark auto-oxidation …

The Use Of Urea And Stilbestrol In Fattening Rations For Beef Cattle, Samuel French Wolfe

Masters Theses

This investigation was conducted to study the substitution of urea and corn, on a nitrogen basis, for part or all of the protein supplement needed to balance a low protein fattening ration for steers, and also to study the effect of adding ten milligrams of stilbestrol per steer daily to a ration in which urea was used as the sole protein supplement in balancing the ration.

An Ecological Survey Of The Vascular Aquatic Vegetation Of The Cumberland Plateau In Tennessee, Franklin Delano Robinson

Masters Theses

A study of the vascular aquatic plants in the Cumberland Plateau in Tennessee was mad e during the summer of 1955. The purpose of this study was to find out the distribution of species in this area and try to learn some of the conditions under which the species involved survive. The species list for the area was arranged in alphabetical order under group headings according to the most frequently observed habit or position of growth. Under each species name the range and mean values determined for the carbon dioxide content, total acidity, total alkalinity, and pH of the surrounding …

The Effect Of Adrenal Steroid Hormones On The Protein Content Of Tumorous Livers, Duncan W. Martin

Biology ETDs

Protein is basic to the structure and function of protoplasm. Enzyme systems which regulate the rate of cellular reactions are primarily composed of protein and many of these enzymatic systems influence the metabolism of less specialized proteins that form the major structural material of protoplasm. It is believed that experimental procedures which modify protein composition of cells may also influence the activity of intra-cellular enzymes. In experimental live cancer, it has been shown that the activities of a number of oxidative enzymes are modified as the carcinogenic process proceeds (Richmond, 1955, p.38). Furthermore, it has been demonstrated that endocrine function …

A Study Of The Effect Of Three Nutrients On The Growth Of Tomatoes, Walter B. Stone

Biology ETDs

Studies of the various phases of plant growth are becoming more and more important to plant physiologists. Many such studies have been conducted for economic reasons to obtain increased production. In this investigation, fruit production and quality have been considered important, but have been placed second in interest to the effect certain nutrients may have on plant development during growth.

Most experiments of this type have been concerned with nutrient deficiencies. The writer has attempted in this experiment to use nutrient elements in excess and observe the effects produced during progressive phases of plant growth. Single elements, nitrogen, phosphorus, and …

A Survey Of The Effect Of Mineral Salts On Direct Dyeings, Lawrence R. Bortolotti

Paper Engineering Senior Theses

A study of the effect of various minerals salts on dyeings made with direct dyes. Dyes were chosen for their frequency of usage in the paper industry; the salts were chosen for several reasons, the prime one being that they form a floc at approximately the same pH as that of the stock run over the paper machine, also for its cost and availability. Sheets were made with the various dyes and salts in severals percentages of each dried, out up into test sheets for fading and bleeding. The test sheets were examined visually for evidence of fading and bleeding …

Impartial Evaluations Of The Printing Quality Of Paper, Warren R. Engel

Paper Engineering Senior Theses

Several methods for the evaluation of paper have been investigated for their desirability as means of an impartial evaluation of the printing quality of paper. The halftone plate method showed the most desired results as an impartial evaluation of both coated and uncoated papers. The printing gage was not found to be a satisfactory method of evaluation. The drawdown method is especially significant in evaluating properties which influence the printing quality but lacks a suitable numerical evaluation.

An Evaluation Of Methods Of Concentrating And Counting The Phytoplankton Of Bear Lake, Utah-Idaho, William J. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The phytoplankton, or plant plankton, live in the open water throughout their life cycle and obtain the necessary nutrients from the water. They are important contributors to the total plant production of lakes and ponds.

Salt Tolerance Studies Of Selected Crop Plants, Cyril Reed Funk Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extensive land areas in arid and semi-arid regions contain excessive amounts of salt which inhibit or prevent the growth of desirable crop plants. This problem is increasing with the development of extensive irrigation projects. The future of irrigation agriculture will depend upon the development and the utilization of means of (1) preventing salt accumulation, (2) reclaiming salted soils, and (3) making the best use of those soils which by reason of drainage problems, soil texture and permeability, poor quality irrigation water, etc. are unsuited for economic reclamation.

The utilization of land that is not feasible to completely reclaim, at least …

Red Raspberry Root Rot In Northern Utah, Robert L. Powelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the last few years, red raspberry growers in Utah have been finding that plantings gradually lose vigor and are not profitable. In the largest raspberry growing area in Utah, Utah County, figures taken from the U.S. census from 1930 to 1950, show a decrease in acres of raspberries grown from 401 in 1930 to 190 in 1950 (2). In many instances this deterioration of raspberry plantings in Utah has not been definitely associated with known plant pathogenic fungi or virus infections. Neither can the expansion of suburbs account for this decrease. In certain cases it has been obvious that …

The Effect Of The Water Extracting Requirement Upon The Fertilizer, Yield And Growth Response Of Sweet Corn, Roberto Vazquez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are a number of factors that influence crop yield, two of which are soil moisture and fertility.

Root Yields, Sucrose, And Glutamic Acid Content Of Sugar Beets As Influenced By Soil Moisture, Nitrogen Fertilization, Variety, And Harvest Date, Donald G. Woolley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The United States produces about 1.8 million tons of sugar annually. Approximately 75 per cent of this production is derived from sugar beets. The importance of the sugar beet crop in national and world economy is justification for research effort as a means to more economical production.

It is desirable that sugar beet processing be carried out in the most efficient manner. More effective utilization of the sugar beet and its by-products will add stability to the sugar beet industry.

For the past 170 years, since Achard found that sugar could be used for human consumption and that pulp might …

The Effect Of Bicarbonate On The Uptake Of Zinc By Plants, Lawrence G. Morrill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Zinc deficiencies occur in many fruit orchards in Utah even though the soil contains amounts of zinc that would normally be sufficient for good plant growth. The existing zinc problem in Utah is, therefore, one of availability.

Problems of zinc availability generally occur in the pH range of 6-8. Zinc deficiencies occurring within this pH range are more frequently found on well-aerated soils than on poorly aerated ones with other conditions being the same. It has been shown that carbon dioxide will convert both zinc hydroxide and zinc carbonate into more soluble bicarbonates with the concentration of Zn⁺⁺ that …

The Inheritance Of Certain Morphological Characters Of The Barley Spike, Donald C. Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant breeding, in its simplest form, began thousands of years ago. Since then it has grown into a science of immense practical importance with vast strides made possible by continued research.

The Economics Of Turkey Production In Utah, 1954, Richard W. Kearl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The production of turkeys by farmers for market in Utah has risen from a meager beginning a few decades ago, to one of the important agricultural industries today. Utah's turkey industry has expanded tenfold from the 226,000 head sold in 1929 to the record high 2,285,000 head sold in 1954. Pounds sold was 13 times greater in 1954 than in 1929 due to the increased weight per bird as well as to the increase in number of head. The record number of 2,285,000 head sold for the amount of $10,635,000. This accounted for about seven per cent of the total …