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Density And Diversity Responses Of Summer Bird Populations To The Structure Of Aspen And Spruce-Fir Communities On The Wasatch Plateau, Utah, Janet Lee Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sixteen stands representing a range of structural variation in aspen, mixed aspen-conifer, and spruce-fir communities of the Wasatch Plateau, Utah, were censused by the sample count method. The stands were classified as eleven community types based on the understory dominants or indicator species and the cover types. Fifty bird species were recorded during the two seasons; thirty-two occurred in aspen cover, forty-four in mixed aspen-conifer cover, and twenty-two in spruce-fir.

Comparisons of the composition and density of bird populations were made between uniform stands of a single life form and more structurally complex stands of either single or mixed life …

The Evaluation Of A Computer Model To Predict The Effects Of Salinity On Crop Growth, James K. Wolf

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A model was developed to predict the effects of soil salinity on crop growth. The model makes three major assumptions: 1) Relative yield for a growing season is directly related to the ratio of actual and potential transpiration. 2) Water uptake by plants is in response to the water potential gradient between the plant roots and the surrounding soil. 3) The effects of the soil salinity on crop growth is solely due to the affect of osmotic potential in decreasing the water potential. Minor assumptions also included are concerned with the plant growth cover, plant root growth, and the separation …

Spawning Biology Of Channel Catfish Ictalurus Punctatus (Rafinesque) In Willard Bay Reservoir, Utah, Stuart Terry Shipman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted on Willard Bay Reservoir, Utah, during the summers of 1972 and 1973, to study the spawning biology of the channel catfish (Ictalurus Punctatus), and to evaluate potential reproduction for this species in the reservoir. Potential reproduction was evaluated through examination of available natural habitat and use of artificial habitat provided for this study.

Channel catfish were found to mature by the end of their fourth year and spawn from mid-June through August. A total of 12 nesting channel catfish were observed along 15, 0.8 kilometer (0.5 mile) sections of dike. Ten of these 12 …

Chemical Quality Variation In A Small Mountain Watershed, David C. White

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to quantify the chemical nature of the Chicken Creek waters, and to investigate the variability and causes of that observed chemistry. The three objectives of the study were: 1) inventory the chemistry of the water produced by the subject watersheds, 2) determine chemical budgets for the watersheds, and 3) identify the sources of the primary chemical components.

Chemical surveys were made: 1) on the stream exiting from each gaged watershed, 2) at various points within the West Branch drainage network, 3) of the atmospheric inputs (rain, snow, and dust), 4) of the soil solution, …

Salt Production From Micro-Channels In The Price River Basin, Utah, Richard Bruce White

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt production from micro-channels in the Price River basin of east-central Utah was studied using artificial inputs in order to better define the general sources and processes involved in diffuse source salt release within the basin. An attempt was made to determine what factors are most significant in relation to salt release. The study revealed that the micro-channel systems are highly heterogeneous in relation to salinity. This natural variability tends to increase as the salt content of the channel increases.

The Bluegate member of the Mancos shale was found to be the prime source of salt within the basin. Gypsum …

A Study Of A Possible Predictor Of Pilot-Error Aircraft Accidents In The State Of Utah, Garn O. Huntington

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It was the objective of this study to determine to what extent automobile driving records may be used in predicting the occurrance of pilot-error aircraft accidents.

An analysis was conducted on all pilot-error aircraft accidents in the state of Utah during the time period of January 1, 1972 through December 31, 1973.

Although the total calculations were not significant, the evidence indicates that the pilot who receives many automobile driving citations will be involved in more pilot-error aircraft accidents. A trend was established with age and the Weighted Citation Index, with 70.69 percent of the grouped classes correctly classified.

An Evaluation Of The Effectiveness Of The Teacher Education Program At Utah State University For Elementary School Teachers, Diana Alldredge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to evaluate the effectiveness of the teacher education program in the Department of Elementary Education at Utah State University. The program has been in effect for only a few years and the department desired that an evaluation be conducted to determine its present strengths and weaknesses.

The procedure used to collect data for this study involved several instruments. Letters were sent to 150 universities in the United States to determine what they had done to evaluate their teacher education programs. Questionnaires were sent to 399 graduates from 1974, 1975, and 1976 to ask their …

Toxicological And Biochemical Investigations Of Alpha-Chaconine In Potato (Solanum Tuberosum L. ) Tubers: Physiologic Disposition And Tissue Binding, And Inhibition Of Tissue Cholinesterases And Isoenzymes, Sydney Obodoechina Alozie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The distribution, absorption, metabolism and tissue binding of radioactivity were studied in hamsters after oral and intraperitoneal administration of alpha-chaconine- (³H). The material was well absorbed from the gastrointestinal tract and nearly 22 percent of the label was excreted via urine and feces in 7 days. The excretion was higher in urine (21 percent) than in feces ( < 1 percent). Tissue concentrations of radioactivity peaked at 12 hours following oral administration, with the highest concentrations found in lungs, liver, spleen, skeletal muscle, kidney and pancreas, with heart and brain containing moderate amounts. Concentrations of radioactivity in tissues following intraperitoneal administration were significantly higher than those observed after oral treatment. Excretion of chloroform-soluble products in the feces was 10 times higher than that of the chloroform-insoluble metabolites after both oral and intraperitoneal administration. In the urine, the activity was predominantly in the chloroform-insoluble form and the chloroform-soluble metabolites were relatively minor in amounts (0.27, 0.85, and 2.45 percent versus 0.005, 0.14 and 0.19 percent of dose for 12, 24 and 72 hours, respectively). After 7 days, the chloroform-soluble metabolites in urine increased to 20 percent of the excreted radioactivity, while the amount of chloroform-insoluble metabolites was less than 1 percent. Subcellular distribution of the labeled compound indicated the highest concentration of radioactivity in the nuclear and microsomal fractions of brain, liver and heart tissues. A small amount of radioactivity, shown by a minor peak, was also observed in the fractions between the mitochondrial and microsomal fractions on a sucrose gradient. Binding of radioactivity was observed in brain, testes, kidney, lung, liver and heart. All of the label in the brain appeared to be in the bound form. The results indicated that alpha-chaconine is slowly absorbed from the gastrointestinal tract after oral administration, and persists in various tissues, much of it in bound (non-extractable) form (in nuclear and microsomal fractions).

Excretion of alpha-chaconine- (3H) and its metabolites was investigated after oral and intraperitoneal administration in hamsters. The separation of the glycoalkaloid and its metabolites in feces and urine was accomplished by thin-layer chromatography. An increase in the concentration of excreted …

Resource Partitioning In The North American Gallinules In Southern Texas, William W. Reagan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Data on the Common and Purple Gallinules at the Welder Wildlife Foundation in South Texas indicated that resource partitioning between the two birds occurred. The objectives of this study were: (1) to compare differences in daily activities; (2) to investigate nesting habits; and (3) to measure physical characteristics of the two birds.

Three methods of resource partitioning were utilized by the two gallinules. (1) Common Gallinules selected open water associated with sparse panicum and paspalum grasses while Purple Gallinules selected dense panicum and paspalum grasses. (2) Common Gallinules during migration and throughout the season shifted gradually from a sparse panicum …

Shoshoni Conceptualizations Of Plant Relationships, Bryan Ray Spykerman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Interviews were conducted with 10 Shoshoni-speaking people to investigate conceptualizations of plant relationships. A card-sort technique and informal questioning were employed in an attempt to elicit plant classifications and taxonomic relationships. Results indicate classifications are based on multiple criteria including morphology, cultural utilization, geographic setting and growth habit. A paradigm which postulates conceptualizations based on prototypic images fits the data better than the supposition that memory is composed of extensive taxonomic structures.

Influence Of Corynebacterium Insidiosum On The Water Relations Of Alfalfa, Rastri Dey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of Corynebacterium insidiosum (McCull) H. L. Jensen on the water relations of its host, alfalfa, was studied by field measurements made on a 6-year-old stand of Ranger alfalfa. Periodic measurements of stomatal conductance, xylem pressure potential Ψ, and root, stem, and leaf conductance were made in relation to soil moisture conditions. Water regain and electrolyte leakage studies were also made to test membrane integrity in diseased plant leaves.

At all times the xylem pressure potential Ψ was found to be much more negative in diseased plants than in healthy plants. Stomatal conductance was found to respond to the …

Genetic Control Of Spermiogenesis In Drosophila Melanogaster: The Effects Of Abnormal Association Of Centrosome And Nucleus In Mutant Ms(1)6s, Douglas Lee Habliston

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mutant ms(l)6S of Drosophila melanogaster is characterized by a spectrum of abnormalities of spermatid differentiation. Included in these are failure of the basal body to make normal attachment to the nucleus, failure of acrosomes to develop, and lack of a normal pupulation of perinuclear microtubules. There is also a failure of normal chromatin condensation and nuclear elongation. The mitochondria do not form a normaI nebenkern, but nevertheless fuse, elongate, and develop paracrystalline bodies. The number of normal axonemes is markedly reduced as a result of the failure of some centrioles to form basal bodies. All of these aberrations can be …

A Preliminary Investigation Of The Lipid Of Halophilic Bacteria As A Food Additive, Neil F. Collins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to evaluate the feasibility of obtaining workable quantities of the unusual ether-linked phosphatidyl glycerophosphate of halophilic bacteria through batch culture of Halobacterium halobium. Once isolated and purified, physical, emulsification, and toxicological properties of the lipid were evaluated with respect to its use as a nonnutritive lipid substitute or an emulsifier by the food industry. These evaluations included physical descriptions, melting properties, hydrophile-lipophile balance (HLB) determination, and oral and intraperitoneal administration of the lipid to laboratory mice.

Fine Structural Aspects Of The Developing Eye Of The Honey Bee, Judith Susan Eisen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The post-embryonic development of the compound eye of the worker honey bee was investigated with the light and electron microscopes. The cells of the optic primordium were reorganized into preommatidial cell clusters during the late third and early fourth larval instars. Each cluster contained nine prospective retinula cells, the ninth was centrally located and shorter than the other eight; four prospective cone cells; and an undetennined number of prospective pigment cells.

Rhabdomere development began in the eight peripherally located retinula cells just prior to pupation. Following pupation, each ommatidium elongated. During ommatidial elongation, the short ninth retinula cell moved from …

The Life And Contributions Of Captain Dan Jones, Rex Leroy Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is an examination of the contributions made by Captain Dan Jones, called the father of the Welsh Mission of the Church of Jesus Christ of Latter-day Saints, and a pioneer to the Great Basin. Jones was one of the all-time missionary greats, instrumental in converting over 5,000 Welsh people and their introduction into the Utah pioneer society. He operated a steamboat on the Mississippi for the Mormon Church and later a commercial boat on the Great Salt Lake for Brigham Young. Jones headed a steamboat expedition in opposition to an attempted kidnapping of Joseph Smith in Illinois. The …

Infrared Imagery Scanning Systems For Censusing Big Game, Peter S. Goldberg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The primary objective of this study was to explore the potential of an airborne infrared scanner for the census of mule deer (Odocoileus hemionus) and elk (Cervus canadensis) in the Intermountain West. Flight altitude was varied in hopes of achieving species separation, and ground studies were conducted, using a hand-held radiometer and captive deer, to find the optimum time of morning to census. The problems and potentialities of infrared imagery scanning systems for censusing big game are discussed and compared to visual aerial census methods.

Seed And Cone Insects Associated With Pinus Monophylla Torr. And Frem., Michael James Jenkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dissection and rearing studies of second-year cones disclosed six species of insects associated with the seeds and cones of singleleaf pinyon pine. Those most commonly encountered were: Dioryctria sp. probably albovittella Hulst, Conophthorus monophyllae Hopkins and Pineus coloradensis Gillette. The three remaining species were of lesser importance. These included the gall midge, Asynapta sp., a minor cone pest and two parasites, one of C. monophyllae, Acerocephala atroviolacea Crawford and an unidentified parasite of Dioryctria, of the family Ichneumonidae.

D. sp. probably albovittella was regarded as the major insect destroying cones and seeds of P. monophylla in …

A Thermal Energy Storage Tank Model For Solar Heating, Robert Arthur Pate

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The results of a combined theoretical and experimental study of the kinetics of a hot-liquid energy-storage tank are presented. A physical model is developed which accurately describes the thermal stratification behavior in a storage tank. The governing differential equations are developed for the physical model. A numerical solution to the system of equations is presented. Some existing models were examined and the predicted results of each are discussed. The concepts developed can be used to predict the thermal stratification behavior in a storage tank under most conceivable operating conditions. These conditions include flow configurations at the top and the bottom …

Aspects Of The Life History Of Three Catostomids Native To The Upper Colorado River Basin, Charles W. Mcada

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The distribution, abundance and life history were studied for three catostomids -- the razorback sucker (Xyrauchen texanus), the flannel-mouth sucker (Catostomus latipinnis), and the bluehead sucker (Catostomus discobolus) -- all native to the upper Colorado River basin. The razorback sucker has declined in abundance due to man's impact upon the system and it has been recommended that this species be listed as ''threatened" on the U. S. Department of the Interior's list of Threatened or Endangered species [Personal corrmunication, G. C. Kobetich, U. S. Fish and Wildlife Service, Las Vegas, Nevada]. During this investigation, …

A Comparison Of Dewpoint And Psychrometric Mode In Leaf Water Potential Measurements, Gladys Durand-Campero

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Leaf water potential of two maize plants (Zea mays L.) two chlorophytum plants (Chlorophytwn capense, Kuntze), a schefflera (Brassaia actinophylla) and one aspen (Populus tremuloides Michx.), were measured under laboratory conditions with aluminum block in situ leaf hygrometers and with stainless steel single junction chamber hygrometer using excised entire leaves. Plants were subjected to a drying cycle. The hygrometers were controlled with a dewpoint microvoltmeter and all readouts were recorded on a chart recorder. A typical reading and control schedule included 20 second cooling before a first psychrometric reading allowing the output to …

In Vitro Morphogenesis And Mutation Of Glycine Max L., Thomas Daniel Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soybean (Glycine max L. c.v. Consoy) tissue cultures were grown in synthetic media containing various concentrations and combinations of minerals, auxins, cytokinins, pH levels, and inorganic growth factors in a systematic procedure to establish optimum media for initiation and maintenance of callus. Further modification of the hormone level was employed to initiate callus morphogenesis. Normally toxic levels of atrazine were established in soybean calli media, and ethyl methanesulfonate (EMS) and X ray-induced mutant calli were selected for atrazine tolerance.

Optimal media for initiation and maintenance of soybean calli were developed and a defined medium was determined that consistently yields …

Multiple Forms Of Deoxyribonucleic Acid-Dependent Ribonucleic Acid Polymerase In Barley Leaves (Hordeum Vulgare L.), Sachchidananda Javali

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ribonucleic acid polymerases (E.C. 2.7.7.6) have been solubilized form whole green leaves of barley (Hordeum vulgare L.). Three major forms of the solubilized enzyme have been isolated by sonication in high ionic strength buffers, cation and anion exchange chromatography, and agarose gel permeation chromatography and designated I, II, and III. The enzyme fractions appear analogous to the Class I, II, and III ribonucleic acid polymerases defined in other eucaryotic systems. The ionic strength optima, amatoxin sensitivity, and relative activities with denatured calf thymus deoxyribonucleic acid were different for Class I, II, and III polymerases.

A simple, rapid, reproducible method …

Suspended And Dissolved Solids Effects On Freshwater Biota: A Review, Darwin L. Sorensen, Margaret M. Mccarthy, E. Joe Middlebrooks, Donald B. Porcella

Reports

It is widely recognized that suspended and dissolved solids in lakes, rivers, streams, and reservoirs affect water quality. In this report the research needs appropriate to setting freshwater quality criteria or standards for suspeneded solids (not including bedload) and dissolveed solids are defined by determining the state of our knowledge from a critical review of the recent literature in this field. Common literature sources and computer searching routines were used as an initial source of information followed by detailed journal searches. Although some 185 journal articles, government reports, and other referecnes were cited herein (about 45 percent publicshed since 1974) …

The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe

Aspen Bibliography

An unknown number of deer are continually killed on summer and winter ranges by predators, and in at least some locations these losses are significant.

Lecture 2: No Exit- The Contemporary Search For Historical Reality, Ross Peterson

Last Lectures

No abstract provided.

Utah Science Vol. 38 No. 1, March 1977

Utah Science

Utah's Drought - What Can We Do About It? E. Arlo Richardson, Paul D. Christensen, Wade G. Dewey, Rex F. Nielson, Gaylen L. Ashcroft and R. J. Hanks Even if Utah is luckier than California, and we are into just a 1-year drought, our urgent need to conserve water in 1977 is undeniable. This article defines useful guidelines for urbanites as well as farmers. 3

Cycles, Circles and Scythes - (Weather Throu!tl the Ages) E. Arlo Richardson As you probably know by now, drought is not a new phenomenon. But do you know what scales and indicators the scientists use …

The Eagle 1977, College Of Eastern Utah

College of Eastern Utah Yearbooks

Yearbook for College of Eastern Utah 1977.

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Breaks National Monument, Utah, National Park Service. Rocky Mountain Regional Office. United States.

Elusive Documents

No abstract provided.

U.S.D.A.- Forest Service Environmental Statement: Salt Lake Planning Unit Proposed Land Management Plan, U.S. Department Of Agriculture

Elusive Documents

No abstract provided.

Proceedings From The 14th Annual Marschall Invitational Italian Cheese Seminar 1977, Various Authors

Cheese Industry Conference

No abstract provided.