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Articles 52261 - 52290 of 53055
Full-Text Articles in Life Sciences
A Study Of The Fleshy Fungi Of Utah, Kent Howell Mcknight
A Study Of The Fleshy Fungi Of Utah, Kent Howell Mcknight
Theses and Dissertations
It is the purpose of this study to further the ends of Mycology by presenting the fleshy fungi which are known to grow in Utah. The term fleshy fungi as used here shall include those Ascomycetes and Basidiomycetes which produce large or otherwise conspicuous sporocarps and their closely related forms. This includes portions of the sub-classes Pyrenomycetes and Discomycetes of the Ascomycetes; and portions of the Heterobasidiao and Eubasidiae of the Basidiomycetes (4). The sporocarps may be fleshy, woody, papery, leathery, carbonous or waxy in texture. This would exclude the Myxomycetes. However, since there have been no extensive studies of …
A Preliminary Study Of The Vegetation In An Exclosure In The Chaparral Of The Wasatch Mountains, Utah, Verl Phillips Allman
A Preliminary Study Of The Vegetation In An Exclosure In The Chaparral Of The Wasatch Mountains, Utah, Verl Phillips Allman
Theses and Dissertations
The purpose of this study was to determine the ecological factors existing within the chaparral community. The present status of the vegetation in a one-acre exclosure was analyzed and recorded so that subsequent improvement or eterioration might be noted. A brief history of the area, the weather, and the geology are presented. Many other aspects of the problems enumerated in the introduction need to be studied. This study provides a foundation for a more detailed study of the vegetation which may be undertaken at a future date.
The Use Of X-Ray And Nitrogen Mustard To Determine The Mitotic And Intermitotic Times In Normal And Malignant Mammalian Tissues, William Richard Widner
The Use Of X-Ray And Nitrogen Mustard To Determine The Mitotic And Intermitotic Times In Normal And Malignant Mammalian Tissues, William Richard Widner
Biology ETDs
The relative times involved in the various phases of cell division is basic to problems of tissue growth, but the quantitative relation of mitotic and intermitotic times have received very little attention until recently. Even data on the quantitative comparison of mammalian growth rates are very limited. The rate of growth of any tissue is directly proportional to the number of new cells added to the tissue over and above the number of old cells being constantly destroyed.
The present study was undertaken: (1) to determine which of these two factors is responsible for differences in the mitotic index seen …
The Influence Of Single, Two, And Three Stage Bleaching On Fading Characteristic Of Deinked Stock, Phillip H. Avery
The Influence Of Single, Two, And Three Stage Bleaching On Fading Characteristic Of Deinked Stock, Phillip H. Avery
Paper Engineering Senior Theses
A literature survey on the various bleaching methods used on deinked stock and the factors which influence the fading characteristic of deinked stock is compiled. Mention is also made of various additives which have an influence on the fading of a sheet. A description of the experimental work with caustic deinked stack of various groundwood content follows. Results indicate that the groundwood content has more effect upon fading of deinked stock than the number of stages of bleaching, although the increase in the number of stages of bleaching does reduce the amount of fading in a sheet. A greater effect …
The Evaluation Of Paper By Means Of The Densichron Instrument, Edward G. Degalan
The Evaluation Of Paper By Means Of The Densichron Instrument, Edward G. Degalan
Paper Engineering Senior Theses
An Evaluation of the Universal Magnephot Densichron as a Reflectometer, Opacimeter and Color Analyzing Device
This paper is a report on the evaluation of the Universal Magnephot Densichron, an electronic photocell instrument developed for the photographic industry, for use in the paper industry. This instrument has been found to have several errors which make its use impractical for research work in the laboratory, but it can be used in paper mills for control purposes. If this used for this type of work certain precautions have to be taken as outlined. The major portion of this paper deals with the possibility …
A Proposed Method Of Forming A Sodium Hexametaphosphate Film On The Fourdrinier Wire, Theodore Richard Kielts
A Proposed Method Of Forming A Sodium Hexametaphosphate Film On The Fourdrinier Wire, Theodore Richard Kielts
Paper Engineering Senior Theses
The addition of sodium hexametaphosphate to the white water system of the paper mill is an effective method of preventing pitch deposition. The ability of this compound to prevent pitch agglomeration is due to its tendency of forming monomolecular films on metallic surfaces to which pitch will not adhere.
This thesis has attempted to evaluate whether this monomolecular protective film is best formed by spraying a solution of sodium hexametaphosphate onto the moving Fourdrinier wire or whether it is best formed by the present-day method of allowing the film to form from the white water system to which sodium hexametaphosphate …
A Comparison Of The Strength Characteristics Of Sheets Produced By Standard T.A.P.P.I. Method And By Means Of The Noble And Wood Sheet Machine, William C. Geiger
A Comparison Of The Strength Characteristics Of Sheets Produced By Standard T.A.P.P.I. Method And By Means Of The Noble And Wood Sheet Machine, William C. Geiger
Paper Engineering Senior Theses
The first section of this paper is devoted to a literature survey in which the following sheetmaking variables, and their effects upon strength were examined: drying, tension, couching, pressing, consistency of stock in headbox, effect of differences in wire mesh, and drainage time.
The second section is composed of results obtained by personal experimental work. In order to provide an accurate comparison of the two sheetmaking machines in question, their relative differences in procedure were interchanged so as to bring out the variations in strength values for force drying versus air drying, tension during drying versus drying without tension, and …
The Role Of Diethylstilbestrol On Fertility And Hatchability Of Chicken Eggs, Martha Ellen Dysart
The Role Of Diethylstilbestrol On Fertility And Hatchability Of Chicken Eggs, Martha Ellen Dysart
Tennessee State University Alumni Theses and Dissertations
No abstract provided.
The Taxonomy Of Utah Orthoptera With Notes On Distribution, Andrew H. Barnum
The Taxonomy Of Utah Orthoptera With Notes On Distribution, Andrew H. Barnum
Theses and Dissertations
To an entomologist, the Orthoptera1 is in a state of confusion with respect to the available literature. Work has been done, and is now being done on the orthopteran fauna, but manuals tor identification of most species are not available for all sections or the country. Exclusive of a few lim-ited groups, Utah is among the areas that has no complete keys for taxonomic workers. In biological ivenstigations identification is essential: The species being studied must be definitely known. The primary purpose of this study, therefore, is to list the Utah Orthoptera and provide the keys necessary to their critical …
A Study Of Interscholastic Sports Officiating In The United States, John Martel
A Study Of Interscholastic Sports Officiating In The United States, John Martel
Health, Exercise, and Sports Sciences ETDs
The purpose of this study is to ascertain the interscholastic football and basketball sports officiating practices in the United States by (1) determining to what extent the various states certify officials, (2) what the requirements are for certification, (3) the methods of selecting officials for athletic contests, (4) the types of control the state athletic associations exert over officials regarding officials' appeals, conduct of officials, penalties for violations and settlement of disputes, (5) how the officials and the schools are rated, (6) the fees paid to the officials, (7) and the preparation made by officials who officiate interscholastic athletic contests.
Respiration Of Kidney Slices From Adrenalectomized Rats Treated With Adrenal Cortical Hormones, Miriam Landew
Respiration Of Kidney Slices From Adrenalectomized Rats Treated With Adrenal Cortical Hormones, Miriam Landew
Biology ETDs
In view of the fact that there obviously are metabolic and oxidative disturbances in the kidney caused by adrenalectomy, this investigation was attempted in an effort to obtain information concerning the following:
(1) Whether the rate of oxygen consumption of rat kidney tissue slices is a function of time; to determine whether the decreased metabolic function occurred immediately upon adrenalectomy or if an initial rise and then a falling off took place, as seemed to be indicated in the work done by Butcher (1943).
(2) Whether cortisone or desoxycorticosterone had the ability to alter oxygen consumption of kidney tissue in …
The Effects Of Epinephrine And Nor-Epinephrine On The Blood Picture In The Rat, George H. Gass
The Effects Of Epinephrine And Nor-Epinephrine On The Blood Picture In The Rat, George H. Gass
Biology ETDs
It has long been known that various stresses and stimuli elicit responses in the animal body, and since the stating of Cannon's "emergency function" (1929), the adrenal medullary hormones have been credited with exciting many of the instantaneous responses to the animal body.
The experiment was designed to determine: (1) whether nor-epinephrine has effects on the blood elements different from those seen after epinephrine treatment; (2) whether the dosage of hormone employed will affect the type of response obtained; and (3) whether the demedullated rat responds to the adrenal medullary hormones in the same pattern as the intact rat.
A Botanical Study Of The Trees And Shrubs Found On The Campus Of Ursinus College, Daniel Burnside
A Botanical Study Of The Trees And Shrubs Found On The Campus Of Ursinus College, Daniel Burnside
Biology Honors Papers
This ten page thesis gives a report of progress made in taking a botanical survey of the Ursinus College campus. Samples from all trees and shrubs of different species were collected, classified, pressed, dried and mounted. Information for plaques was created as well as a map with tree locations and a painting of an aerial view of the campus with trees plotted.
Exposure To X-Radiation Of Localized Areas Of Mammalian Skin Conditioned To Different Levels Of Metabolic Activity, James A. Belli
Exposure To X-Radiation Of Localized Areas Of Mammalian Skin Conditioned To Different Levels Of Metabolic Activity, James A. Belli
Bachelors’ Theses
There appears to be an important relationship between the overall metabolic rate prevailing in a protoplasmic system at the time of exposure to ionizing radiations and the extent of the damage effected by such radiation. It is with this issue that the present investigation is concerned.
Radiation biologists and clinical radiologists are coming to realize the importance of this problem. This increasing interest has suggested several new avenues of approach to the radiobiologist toward the elucidation of the more subtle changes occurring in protoplasmic system s exposed to radiation. Clinical radiology has availed itself of certain evidence (in a yet …
Variations In The Anteriomesenteric Axis Of The Arterial Blood Supply Of The Frog, Adelle V. Michels
Variations In The Anteriomesenteric Axis Of The Arterial Blood Supply Of The Frog, Adelle V. Michels
Biology Honors Papers
This 10 page thesis attempts to determine if phylogenetically any comparison is possible between variations in the blood supply of the anteriomesenteric axis in frogs and in humans.
A Comparative Study Of Raw, Pasteurized, And Hydrogen Peroxide Treated Milk In The Production Of Swiss Cheese, John Darold Johnson
A Comparative Study Of Raw, Pasteurized, And Hydrogen Peroxide Treated Milk In The Production Of Swiss Cheese, John Darold Johnson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
At the present time the Swiss cheese making process is a prolonged one requiring several operations and considerable space. The cheese is made in wheels weighing approximately 200 pounds and is covered by a thick rind. There is considerable waste in cutting these large wheels to fit the present merchandising methods.
Biology Of The Boxelder Bug In Cache Valley, Arab Bakir Al-Tikrity
Biology Of The Boxelder Bug In Cache Valley, Arab Bakir Al-Tikrity
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The boxelder bug, Leptocoria trivittatue (say), is a hanipterous insect belonging to the family corisidae. Although it rarely is a pest of agricultural crops, its habit of invading homes and other buildings for hibernation and to warm itself has made it an annoying household pest. It has proven to be a difficult insect to control. Only a few of the contact insecticides, useful in control of related insect pests, have given satisfactory control of the Boxelder Bug. Because it has not been considered a critical problem, it has not received detailed attention from the scientific investigators. Its close association with …
A Method Of Estimating Fishing Pressure And Harvest As Used On Logan River, Utah, Albert Frank Regenthal
A Method Of Estimating Fishing Pressure And Harvest As Used On Logan River, Utah, Albert Frank Regenthal
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Completely accurate statements of fishing pressure and harvest can only result from an ennumeration of all anglers and their catch. On most bodies of water it has not been economically feasible for management agencies to effect a complete census of fishermen and harvest. Practically, absolute accuracy is not necessary for management. The development of creel census methods resulting in estimates of known accuracy, yet requiring only a practical outlay of time and money, would be a step toward more effective management.
A Survey Of Extension Work In Wildlife Management And The Development Of A Guide To Wildlife Extension Work In Utah, Edwin V. Rawley
A Survey Of Extension Work In Wildlife Management And The Development Of A Guide To Wildlife Extension Work In Utah, Edwin V. Rawley
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The most efficient wildlife research programs and the most satisfactory methods of applying their results are greatly enhanced if the information is present in such an interesting and understandable manner that it becomes of practical value of the people. Extension education has the function of translating the results of research into usable form and presenting it to the people. The development of a wildlife extension program is based on the needs of the people, and the various phases of the program are designed to meet and solve wildlife problems confronting the people. The purposes of this study are: 1. To …
Qualitative Identification Of The Components Of The Okra Pod Polysaccharide Fraction By Paper Chromatography, John Joseph Eisch
Qualitative Identification Of The Components Of The Okra Pod Polysaccharide Fraction By Paper Chromatography, John Joseph Eisch
Bachelors’ Theses
The research or Dr. Hiram Benjamin of the Marquette University Medical School on the intravenous injection of an aqueous solution of' okra powder for ulcer therapy resulted in investigations concerning its suitability as a · p1asma extender. Transfusion trials on dogs were so encouraging that its potential as a human volemic was readily recognized.
Since such use would require detailed knowledge of the polysaceharide's constitution for toxicity and metabolic evaluations, research was needed to elucidate the nature or the polysaccharide macromolecule. Observing the lack of any reported data concerning okra, Dr. Kenneth Brown or the Biochemistry Department or the Marquette …
Attitudes Of School Administrators And Instructors Of Vocational Agricultural Education In Utah, Horace L. Morrill Jr.
Attitudes Of School Administrators And Instructors Of Vocational Agricultural Education In Utah, Horace L. Morrill Jr.
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Whether or not to provide post-high school education for the farm youth and adult is a highly controversial issue facing many school administrators and teachers of vocational agriculture in Utah today. If one is to start farming and make continuous progress until he becomes a full-fledged farmer it requires several years of training beyond the high school vocational agricultural period. This is because of a lack of maturity and a lack of time, during the high school period, when the individual must and should get a general education.
Many of our present day high schools do not build their curriculum …
A Study Of The Craft Activities In Summer Recreation Programs In Relationship To Weber County, Utah, Leonard W. Glismann
A Study Of The Craft Activities In Summer Recreation Programs In Relationship To Weber County, Utah, Leonard W. Glismann
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A quick observation in this modern world makes one realize the great problem of leisure time that is upon us. Man is working fewer hours and retirements are at a younger age. Now man finds himself poorly prepared to cope with the situation. In our schools today millions of dollars are spent teaching art, crafts, dramatics, music, and physical education in an attempt to train for leisure, yet we spend a comparatively little amount of money for continuing these activities in out-of-school hours.
Control Of Pheasant Eye As It Affects Yield And Other Related Factors In Winter Wheat, Ray J. Downs
Control Of Pheasant Eye As It Affects Yield And Other Related Factors In Winter Wheat, Ray J. Downs
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Pheasant eye (Adonis annua L.), a native of Europe, is commonly cultivated as an ornamental, but occasionally escapes into fields and waste places. It is prevalent in certain areas in the United States, especially southward, on heavy soils that are inadequately drained (20). This plant is one of a number of early maturing winter annual weeds that infests dryland wheat in northern Utah, and it has become a problem in certain lowland areas.
This weed cannot be controlled by usual cultural practices because it makes most of its growth during the time of the year when the soil is …
An Investigation Concerning The Incidence And Pathogenicity Of Pentatrichomonas Gallinarum And Its Relationship To Histomonas Meleagridis In Turkeys In Utah, Ross S. Hadfield
An Investigation Concerning The Incidence And Pathogenicity Of Pentatrichomonas Gallinarum And Its Relationship To Histomonas Meleagridis In Turkeys In Utah, Ross S. Hadfield
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Turkey raising has become big business. During the period 1942 to 1946, the average annual return in Utah amounted to about nine and one-half million dollars (4). This amount would have been increased considerably if the death loss among poults had been lower. As an example, using the percentage of mortality given by Miner (9, p. 5), it is estimated that the death-loss of turkeys in 1944 resulted in a loss of gross income by the farmers of Utah of more than four million dollars provided that the price the farmer received had remained the same.
Among the prevalent causes …
The Consumptive Use Of Water In Milford Valley, Utah, Terrel R. Tovey
The Consumptive Use Of Water In Milford Valley, Utah, Terrel R. Tovey
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Consumptive use, as used in this thesis, is defined as the sum of the volumes of water used by the vegetative growth of a given area in transpiration and building of plant tissue and that evaporated from adjacent soil, snow, or intercepted precipitation of the area in any specified time, divided by the given area. If the unit of time is small, the consumptive use is expressed in acre-inches per acre or depth in inches, whereas, if the unit of time is large, such as growing season or a 12-month period, the consumptive use is expressed as acre-feet per acre …
Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson
Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The California Quail is native to the coastal and semi-arid regions of California extending north into Oregon. Two subspecies are commonly recognized. the California Quail (Lophortyx californica brunnescens Ridgway), and the Valley Quail (Lophortyx californica californica Shaw). The two forms are very similar in coloration and habits and, for the purpose of this study, no effort is made to distinguish the two.
The Iron Content Of Some Plants As Influenced By Conditions Associated With Lime-Induced Chlorosis, Robert E. Warnock
The Iron Content Of Some Plants As Influenced By Conditions Associated With Lime-Induced Chlorosis, Robert E. Warnock
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Throughout much of western United States the soils contain considerable calcium carbonate. This lime is either distributed throughout the soils profile or it occurs in a zone of accumulation at varying depths. On many of these soils certain plants exhibit a chlorosis in varying intensity. This chlorotic condition is not stable as it varies from year to year and even day to day with changing conditions of climate and soil. this chlorosis has been reported from the wine and fruit regions of Europe, from the pineapple and sugar cane areas of Puerto Rico and Florida, from the sorghum and bean …
The Etiology Of Apricot Scorch In Utah County, Utah, Joseph Tarbet Woolley
The Etiology Of Apricot Scorch In Utah County, Utah, Joseph Tarbet Woolley
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In the summer of 1944 a disease of apricots in Utah County, Utah, was brought to the attention of the staff of the Utah Agricultural Experiment Station. This disease was characterized by a scorched appearance of the edges of the leaves and therefore was called "apricot scorch."
The typical symptoms of apricot scorch are a scorching and curling of the margins of the leaves. The "scorched" area usually turns a characteristic reddish-brown color, but sometimes is quite light brown or gray. The injury starts at the margins of the leaves and works inward in "waves" first scorching the marginal portion …
Zinc Deficiency In Soils As Affected By Soluble Phosphate, Glen E. Leggett
Zinc Deficiency In Soils As Affected By Soluble Phosphate, Glen E. Leggett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Zinc deficiency in Utah is found in about 7 per cent of the orchards. The severity varies from minor cases to sever instances in which many of the trees have died. The areas where zinc deficiency is found are becoming more extensive as land cultivation continues.
The treatment of the disorder is expensive and must be repeated often, for it cannot be overcome by the addition of zinc to the soils. The soils in Utah seem to have ample zinc, but in areas where zinc deficiency occurs it apparently is in a form which is not available for plant growth. …
The Effects Of Salt Content And Temperature On Eye Formation In Swiss Cheese, Kenneth B. Creer
The Effects Of Salt Content And Temperature On Eye Formation In Swiss Cheese, Kenneth B. Creer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The size, shape, and handling of the large swiss cheese wheels have given rise to problems of labor, marketing, and waste in cutting. At the present time, there is a trend to produce a smaller swiss cheese which will enable the manufacturer and marketing agencies to overcome the difficulties in handling the large wheels.