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Comparison Of The Influence Of 17-Hydrocortisone And 2-Methyl 9a-Fluorohydrocortisone Acetate On The Involution Of The Thymus Gland In Mice, Gerald K. Wallace

Biology

Previous studies have shown that the adrenal cortical hormones play an important part in lymphatic tissues physiology. Several authors have demonstrated alterations in blood leukocytes and decreased thymus weight following administration of extracts or purified preparations of adrenal cortical hormones. For this reason the thymus gland weight and lymphocyte response have been used as a method of determining activity of several of the corticoids.

Studies In Transmission In Ovine Vibriosis, William H. Rose

Biology

Vibrio fetus, Smith and Taylor, is the principle etiological agent of ovine infectious abortion in the United States. During the 1952 lambing season, the lamb abortions were estimated at 50,000 in Colorado, 30,000 to 40,000 in Idaho, and from 10,000 to 15,000 each in Utah and Wyoming. A conservative estimate of premature lamb losses due to V. fetus infections in the western states for this year was 100,000. In infected flocks the incidence of mortality in aborting ewes may be as high as 10 percent. Since 1952 the incidence of vibrosis among sheep has remained high.

The Influence Of An Artificial Medium Upon The Morphology Of Swine Cecal Trichomonads, Charles P. Hibler

Biology

As yet no thorough studies of the trichomonads living in the cecum of swine have been made. In fresh preparations the trichomonads from the nose, stomach, and cecum appear distinct. After a period of cultivation In an artificial medium, however, the flagellates from the cecum became morphologically similar to the cultured porcine nasal and stomach trichomonads. The cultivation of the trichomonads from the cecum apparently results in either a morphological change in the trichomonad or in a selection among different species or types present in the cecum.

Studies Of Ultraviolet Inactivation Of Cucumber Mosaic Virus In Vivo, Twila Elaine Cheney

Biology

It has been known for some time that plant viruses are inactivated in vitro by ultraviolet (UV) irradiation (Arthur and Newell, 1929). The studies of Hollaender and Duggar (1936) and Price and Gowen (1937) have shown that tobacco mosaic virus (TMV) is inactivated in vitro according to a simple exponential law suggestive of a "one hit" process. More recently plant viruses have been inactivated in vivo by UV irradiation. Bawden and Kleczkowski (1955) found that the development of virus-induced lesions on French bean leaves could be wholly or partially inhibited by UV irradiation subsequent to inoculation with Rothamsted tobacco necrosis …

Comparison Of The Influence Of 17-Hydrocortisone And 2-Methyl 9a-Fluorohydrocortisone Acetate On The Involution Of The Thymus Gland In Mice, Gerald K. Wallace

Biology

Previous studies have shown that the adrenal cortical hormones play an important part in lymphatic tissues physiology. Several authors have demonstrated alterations in blood leukocytes and decreased thymus weight following administration of extracts or purified preparations of adrenal cortical hormones. For this reason the thymus gland weight and lymphocyte response have been used as a method of determining activity of several of the corticoids.

Studies In Transmission In Ovine Vibriosis, William H. Rose

Biology

Vibrio fetus, Smith and Taylor, is the principle etiological agent of ovine infectious abortion in the United States. During the 1952 lambing season, the lamb abortions were estimated at 50,000 in Colorado, 30,000 to 40,000 in Idaho, and from 10,000 to 15,000 each in Utah and Wyoming. A conservative estimate of premature lamb losses due to V. fetus infections in the western states for this year was 100,000. In infected flocks the incidence of mortality in aborting ewes may be as high as 10 percent. Since 1952 the incidence of vibrosis among sheep has remained high.

The Effect Of Copper And Iron Salts On The Expression Of Eye Abnormalities And Melanotic Tumors In Different Stocks Of Drosophila Melanogaster, J. Howard Turner

Biology

Phenotypes in Drosophila can be altered by subjecting the developing larvae to environments containing an exess of heavy metal salts (34, 36). Such alterations, which resemble the effects of mutant genes but are not inherited, have been called phenocopies. The mechanism through which the phenocopy is produced may suggest a process through which a mutant gene influences a phenotype. In cases where such parallels are drawn, it is assumed that a mutant gene and an environmental agent have a similar effect on a particular step in an established metabolic pathway. It would seem less likely but not impossible for the …

The Effect Of Copper And Iron Salts On The Expression Of Eye Abnormalities And Melanotic Tumors In Different Stocks Of Drosophila Melanogaster, J. Howard Turner

Biology

Phenotypes in Drosophila can be altered by subjecting the developing larvae to environments containing an exess of heavy metal salts (34, 36). Such alterations, which resemble the effects of mutant genes but are not inherited, have been called phenocopies. The mechanism through which the phenocopy is produced may suggest a process through which a mutant gene influences a phenotype. In cases where such parallels are drawn, it is assumed that a mutant gene and an environmental agent have a similar effect on a particular step in an established metabolic pathway. It would seem less likely but not impossible for the …

Studies In Transmission In Ovine Vibriosis, William H. Rose

Biology

Vibrio fetus, Smith and Taylor, is the principle etiological agent of ovine infectious abortion in the United States. During the 1952 lambing season, the lamb abortions were estimated at 50,000 in Colorado, 30,000 to 40,000 in Idaho, and from 10,000 to 15,000 each in Utah and Wyoming. A conservative estimate of premature lamb losses due to V. fetus infections in the western states for this year was 100,000. In infected flocks the incidence of mortality in aborting ewes may be as high as 10 percent. Since 1952 the incidence of vibrosis among sheep has remained high.

The Effect Of Hydrogen Fluoride On Light And Dark Products Of Carbon Dioxide Fixation In Plants, Cleon W. Ross

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Damage to vegetation caused by fluoride compounds has been reported for a large number of plant species. In recent years toxicity to plants caused by atmospheric fluorides has been the subject of studies by a number of laboratories. These studies have been primarily concerned with determining the extent of injury caused by fluorides, describing the symptoms which occur and attempting to correlate them with the amounts of the element in the tissue and with some environmental factors. Thomas (1951) has given a general review of these subjects. Attempts have been made to control fluoride damage by spraying the leaves with …

Effects Of Gamma Radiation On Asparagus And Tomatoes, Arthur L. Rivers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since growers are generally unable to produce food the year-round, preservation of available food by the growers and processors has continued to challenge the minds of these men and their scientific cohorts. Even the consumer is subject to this problem and mist rely on those from. whoa he receives food as to its present and eventual condition. Many methods of preservation have been used such as pickling, drying, smoking, canning, and freezing. Most of these preservation methods require excessive handling and/or extensive storage facilities.

A Study Of Detachment Of Soil By Artificial Rainfall And Its Relation To The Dispersion Ratio And Water Stable Aggregates For Nine Utah Soils, Pundlik N. Kalbhor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of soil erodibility has become of paramount interest in the last few decades. The effects of soil erosion are serious and extensive and affect nearly all people.

In general, man can do little or nothing about the geologic erosion or natural erosion in which the processes of rock weathering and soil erosion gradually wear down the earth's surface. However, human disturbance of the natural conditions of the land surface often creates accelerated erosion. Fertility of eroded soil is usually reduced measurably and crop yields are lowered considerably as erosion removes seed soil nutrients and cover crops. Loss of …

Lethal Concentrations And Detoxification Time Of Toxaphene For Goldfish, Gambusia And Rainbow Trout, Gar W. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past few years the Utah Fish and Game Department, as well as the fish and game departments of other states, has been spending fisheries money for fish eradication on both lakes and streams. The Utah Fish and Game Department recently suggested to the University that research be initiated on the subject of toxaphene as a fish poison. Consequently, a better insight into conditions that exist for a given water type could be developed.

Ferrilegoglobin As An Oxidizing Agent For Hydrazine, Donald B. Larson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The system in which atmospheric nitrogen succumbs to enter Nature's cycle has a yet proven evasive with respect to the actual chemical reactions. At present several types of systems are proposed but their chemical makeup is practically unknown.

A Survey Of The Use Of Standardized Tests In The Junior High Schools Of Weber County, Ashlaug J. Jackson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It is evident from the literature reviewed that there is a need for better understanding and utilization of standardized test results. It seems that unless tests contribute to the learning process they are not justifiable. Merritt (12, p. 66) says the main objective of all endeavor is to promote learning. Ultimately, the worth of any activity carried on in the schools has to be judged by the contribution this activity makes toward the improvement of learning. Testing is no exception. In a broad sense, desirable learning has taken place when behavior has been changed in socially approved directions. Testing is …

A Manometric Method For The Determination Of Soil Carbonates In The Field, N. A. Polyzopoulos

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In soil survey work the method now generally used to evaluate the carbonate content of the soil in the field is to observe the amount of effervescence that takes place when the soil reacts with dilute acid. The four degrees of effervescence usually recognized are designated by the symbols eo, e, es, ev and correspond roughly to a lime content of 0-0.5, 0.5-3, 3-15, and above 15 per cent, respectively. This, or course, is a very rough estimate and therefore a method is needed for the quantitative determination of carbonates in the field with a fair degree of accuracy. If …

The Use Of Protease Enzymes In The Manufacture Of Cheddar Cheese, Osamu Fujiwara

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The factors governing flavor and body and texture in cheese making include the quality of the milk used, the heat treatment of the milk, the quality and quantity of the starter, the treatment during the ripening period, other biological conditions and manufacturing technics.

An Evaluation Of The Salt Tolerance Of Selected Clones Of Agropyron Elongatum, Jordan G. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt-affected soils make up much of the bottom-lands of the arid and semiarid areas of the western United States and are especially prevalent in irrigated regions. Such soils require special remedial measures, management practices, and salt tolerant crops if they are to have economic value.

Development And Evaluation Of Laboratory Methods For Determining The Nitrogen Supplying Power Of The Irrigated Soils Of Northern Utah, Jerald Ross Wight

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen is the most widely needed and the most widely used of the fertilizer elements. Yet, in spite of the voluminous research work of evaluating the nitrogen status of soils, laboratory tests for the purpose of predicting need of nitrogen fertilizer are not very widely used. In general, laboratory tests for nitrogen supplying power have not given satisfactory results. Methods currently employed by a few laboratories can be classified either as biological or chemical. In the former method, the soil is incubated under optimum conditions and the amount of nitrate released over a given period of time is measured and …

The Biology Of The Utah Chub, Gila Atraria (Girard), Of Scofield Reservoir, Utah, Harold F. Olson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Utah chub is one of the most important non-game fish in Utah. It has a wide range, and occurs in every drainage in Utah. The Utah chub is not important economically as food fish nor is it of much value commercially. The sportsmen think of this species as trash and do not consider catching or consuming them. However, the Utah chub may be caught on hook and line more readily than many game species. The Utah chub in Scofield Reservoir have been caught by trolling, bait fishing and fly casting and furnish considerable sport when caught with a light …

Good Nutrition For The Family, Ethelwyn B. Wilcox

Faculty Honor Lectures

A BASIC OBJECTIVE of the Faculty Association of UTAH STATE UNIVERSITY, in the words of its constitution, is to encourage intellectual growth and development of its members by sponsoring and arranging for the publication of two annual faculty lectures in the fields of (a) the biological and exact sciences, including engineering, called the Annual Faculty Honor Lecture in the Natural Sciences; and (b) the humanities and social sciences, including education and business administration, called the Annual Faculty Honor Lecture in the Humanities. The administration of the University is sympathetic with these aims and shares the cost of publishing and distributing …

The Utah Juniper, Volume 30, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

General Catalog 1959, Utah State University

University Catalogs

General Catalog of 1959

Contains course descriptions, University college calendar, and college administration.

Growth Of Alberta White Spruce After Release From Aspen Competition, L. A. Smithers, G Ontkean

Aspen Bibliography

At the present time spruce sawtimber is the most important single commodity produced from the forests of Alberta.

General Catalog 1959, Home Study, Utah State University

University Catalogs

General Catalog of 1959 Home Study

Contains course descriptions, University college calendar, and college administration.

Farm & Home Science Vol. 19 No. 4, December 1958

Utah Science

Our future . . . limited by our water supply 87

Soils ... our basic resource 90

New research tools to probe the unknown 92

Biophysics delves into the mysteries of life 94

Improved health through better nutrition 95

Increasing our feed supplies 96

New blood for old crops 98

Seed production studies 100

Breeding for efficiency of production 102

Management makes the difference 104

Combating the ravages of insects and disease 108

Weed control . . . a major agricultural problem 112

Increased production through better nutrition 114

Research tackles processing and marketing 116

Management of our forests 118 …

Observations On The Behavior Of Brasilian Halictid Bees, Iii, Charles D. Michener, Rudolf B. Lange

Mi

No abstract provided.

Observations On The Ethology Of Neotropical Anthophorine Bees (Hymenoptera: Apoidea), Charles D. Michener, Rudolf B. Lange

Mi

No abstract provided.

General Catalog 1958, Summer, Utah State University

University Catalogs

General Catalog of 1958 Summer

Contains course descriptions, University college calendar, and college administration.

Continuous Low Level Treatment Of Calves With Sulfabromomethazine As A Means Of Controlling Coccidiosis, Glen W. Clark

Biology

Coccidiosis is a protozoan disease. It is produced by small, one-celled organisms of the genus Eimeria. Eleven species have been reported in cattle in this country (11). At least two species, E. bovis and E. zurnii are known to be pathogenic to cattle (21).