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Comparison Of Toxicological Models For Evaluation Of Air Pollutants: Response Of The Pulmonary Alveolar Macrophage To Hexavalent Chromium, Jennifer Baker Galvin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to accomplish two primary objectives: (1) to compare two test methods commonly used to evaluate toxicity of inhaled air pollutants, and (2) to observe the response as measured by each of the methods, of pulmonary alveolar macrophages exposed to 2μg hexavalent chromium.

The first method evaluated featured use of intratracheal injections to simulate live inhalation exposures, and the second required exposure of macrophages cultured on petri plates. Pulmonary alveolar macrophages harvested from Long Evans rats were used. The two cell function parameters measured in the evaluations were chemiluminescence and oxygen consumption (which was determined for cells …

On Being Human: The Folklore Of Mormon Missionaries, William A. Wilson

Faculty Honor Lectures

Not long ago I was asked to entertain some of my colleagues at a faculty gathering by telling stories about J . Golden Kimball, that crusty old Mormon divine who salted his sermons and public statements with a liberal sprinkling of cuss words and earthy metaphors. Because I know a fair number of these stories and enjoy telling them, I agreed. The event was a tolerable success. At least most people laughed, and no one threw brickbats. Still, as I drove home, I wondered if I had not done more harm than good. I had, I feared, simply strengthened the …

Theory And Intuition, E. A. Mccullough Jr.

Faculty Honor Lectures

Among the practitioners of science are people who are called theorists , and this lecture is concerned with the question, Just what is it that a theorist does?

If an experimentalist does experiments, then a theorist presumably does theories. What is a theory? My dictionary defines it as ". . . a system of assumptions, accepted principles, or rules of pro· cedure devised to analyze, predict or otherwise explain the nature or behavior of a specified set of phenomena."

Those who now understand perfectly what a theorist does may stop reading here because everything that follows will be superfluous. For …

Alternate Population Limitation Strategies For Feral Horses, Michael L. Wolfe

Aspen Bibliography

No abstract provided.

On Being Human: The Folklore Of Mormon Missionaries, William A. Wilson

All USU Press Publications

No abstract provided.

Altered Volcanic Ash Partings In The C Coal Bed, Ferron Sandstone Member Of The Mancos Shale, Emery County, Utah, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

When volcanic ash falls onto the surface of a peat-forming swamp and is then covered by peat, it forms a horlzontal parting that can be recognized in the subsequent coal bed. As a consequence of the acid leaching environment in the swamp, the original glassy component and some of the less resistant pyrogenic minerals in the ash alter to clay minerals, usually kaolinite.

Background To Historic And Prehistoric Resources Of The East Mojave Desert Region, U.S. Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

historic and prehistoric resources of the east mojave desert region

Selected Biological Characteristics Of Streams In The Southeastern Uinta Basin, Utah And Colorado, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

Biological sampling was carried out during 1976-78 in five streams in the southeastern Uinta Basin, Utah and Colorado, in order to provide baseline water-quality data for an area of potential oil-shale development. The biological activity in the streams sampled generally is limited by physical factors more so than by chemical constituents and plant nutrients. Characteristics of streamflow, such as high turbidity, fluctuating water levels, and moderate to high salinity, limit production of flora and fauna biomass.

Wild Ungulate Forage Requirements -- A Review, United States Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

This report discusses the nutritional and intake requirements of the major big game ungulates of North America. Forage intake rates for the various species are detailed, and major factors governing intake rates are discussed. The importance of forage nutritional value as much as quantity is emphasized, and both biotic and abiotic factors influencing forage quality are presented. Methods of forage protection and improvement are briefly defined.

A Feasibility Study Of The Biological Effects Of Fallout On People In Utah, Nevada, And Arizona, United States Department Of Health And Human Services, Bureau Of Radiological Health

All U.S. Government Documents (Utah Regional Depository)

This is the final report of the analysis of the Utah, Nevada, and Arizona Thyroid Feasibility Study. The report is divided into four sections: (1) Introduction and background; (2) Analysis of Linkage Study with the Utah Cancer Registry and Rocky Mountain Cancer Data System; (3) Evaluation of Tracing a Sample of the Original Utah, Nevada, and Arizona Study Groups; and (4) Options for Future Studies.

Preliminary Hydrologic Evaluation Of The North Horn Mountain Coal-Resource Area, Utah, M. J. Graham, John E. Tooley, Don Price, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

North Horn Mountain is part of a deeply dissected plateau in central Utah which is characterized by deep, arrow, steep-walled canyons with local relief of more that 1,000 feet. Geologic units exposed in the North Hort Mountain area range in age from Late Cretaceous to Holocene and contain two mineable seams of Cretaceous coal. The area is in the drainage basin of the San Rafael River, in the Colorado River Basin. Runoff from the mountain is ephemeral. This runoff to the San Rafael River sis by way of Cottonwood and Ferron Creeks and represents less than 10 percent of their …

Proton Transfers In Hydrogen‐Bonded Systems. Vi. Electronic Redistributions In (N2h7)+ And (O2h5)+, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Electronic rearrangements accompanying transfer of the central proton between the two XH_n units of (H₃NHNH₃)⁺ and (H₂OHOH₂)⁺ are studied using ab initio molecular orbital methods. Electron density difference maps are calculated by subtracting the density of the equilibrium structure (X–H‐‐‐X) from that of the midpoint geometry (X‐‐H‐‐X) using the split‐valence 4‐31G basis set. Some of the features revealed by the maps are common to both systems while others indicate significant differences between nitrogen and oxygen. Decomposition of the total electron density into …

Songbird Populations And Clearcut Harvesting Of Aspen In Northern Utah, Norbert V. Debyle

Aspen Bibliography

No abstract provided.

First Year Final Report: The Ecology Of The Desert Bighorn Sheep In Southeastern Utah, Michael M. King, Gar W. Workman

Elusive Documents

No abstract provided.

Longitudinal And Seasonal Changes In Functional Organization Of Macroinvertebrate Communities In Four Oregon Streams., Charles P. Hawkins, J. R. Sedell

Watershed Sciences Faculty Publications

Relative numerical dominance and densities of invertebrate functional feeding groups are compared with longitudinal and seasonal changes in food resources in a Cascade Range stream system in Oregon. We also compare our data with hypothetical predictions of the River Continuum model. We found that both relative abundances and densities of functional groups fit qualitative characterization of stream reaches and the River Continuum model: Shredders dominated upper shaded reaches; scrapers were most important in intermediate—sized sections; collectors increased in importance progressively downstream; predators were nearly constant in relative abundance at all sections; other functional groups were either rare or only locally …

Physiological Research On Adventitious Shoot Development In Aspen, George A. Schier

Aspen Bibliography

No abstract provided.

Ecology And Regeneration Of Aspen In Relation To Managment, R.K. Tew

Aspen Bibliography

No abstract provided.

Tree Biomass Estimates For Minnesota's Aspen-Birch Forest Survey Unit, Gerhard K. Raile, Pamela J. Jakes

Aspen Bibliography

No abstract provided.

Minnesota's Aspen Resource, Pamela J. Jakes

Aspen Bibliography

No abstract provided.

Calcium Carbonate Precipitation As Influenced By Stream Primary Production, Gretchen L. Rupp, V. Dean Adams

Reports

The potential influence of periphyton photosynthesis on calcium carbonate precipitation was studied for the Logan River, Bear River Mountains, northern Utah. The water chemistry, hydrology, and benthic primary production of the river were monitored for one year. periphyton photosynthesis and calcium carbonate precipitation were measured concurrently in laboratory experiments utilizing radioisotopic tracers. These experiments investigated the effects of water temperature, velocity, and macronutrient concentration on photosynthetically induced calcium carbonate precipitation. In these experiments, the biologic induction of calcium carbonate precipitation was not correlated with water nutrient level. It did, however, reflect water temperature, and was greatest at approximately 10 degrees …

The Kinetics Of Rotating Biological Contactors Treating Domestic Wastewater, Abraham Pano, E. Joe Middlebrooks, J. H. Reynolds

Reports

Four, four-stage, laboratory scale rotating biological contactor (RBC) units were employed to develop kinetic models for the RBC process when treating domestic wastewater. The study was conducted at three different temperatures of 5 degrees C, 15 degrees C, and 20 degrees C. Each unit operated at a different constant organic loading rate taht ranged from 4 qCOD/m^2/d to 14 gCOD/m^2/d and at a constand detention time of 2 hours. Carbonaceous substrate removals measured as COD cencentrations with the four-stage RBC's were 80, 85, and 90 percent for 5 degrees C, 15 degrees C, and 20 degrees C, respectively. The major …

Natural Salinity Removal Processes In Reservoirs, Jay J. Messer, Eugene K. Israelsen, V. Dean Adams

Reports

A small but significant amount of salinity removal has been reported by various authors to occur in mainstem Colorado River reservoirs. Recalculation of some of these salinity budgets, together with a review of the data bases used, usggests taht removal has not often been conclusively demonstrated. Laboratory microcosm experiments and field data indicate that calcium carbonate precipitation, perhaps with some coprecipitation of magnesium carbonate, is the mechanism responsible for most of the salinity removal in Oneida Reservoir, Idaho. Coprecipitation processes (including ion exchange), coagulation, and bioassimilation do not appear to be important natural salinity removal mechanisms. Finally, loss of calcium, …

A Survey And Evaluation Of Shallow Groundwater Contamination Hazards In The State Of Utah, Edward P. Fisk, Calvin G. Clyde

Reports

A survey was made to appraise current man-made contamination of shallow groundwater in Utah. Very little has been published on the subject, and most of the information was obtained by personal observation and through interviews of individuals concerned with water quality protection in Utah. After presenting the relevant physiographic, geologic, and hydrologic characteristics of the various regions of Utah and discussing how these relate to groundwater contamination in general, representative groundwater quality hazards in 32 sites or regions in Utah are presented. A very wide range of hazards to groundwater quality was found to exist. These cases cover the range …

Water Quality In Pleasant Valley, Utah, Calvin G. Clyde, Dennis B. George, Kun Mo Lee, Phil Pucel, William Hay

Reports

Pollution of shallow groundwater due to wastewater disposal in Pleasant Valley, Utah, was investigated from October 1979 through August 1980. Water samples were collected from 23 wells and 5 stream sampling sites. Water quality analysis revealed pollution at several sites. Groundwater pollution caused by man’s activities in the area was observed in Bolotas and Scofield Campsite subdivisions. Severe shallow groundwater pollution measured in wells which were located in south and north profiles of the town of Scofield, Utah, could have originated from the municipal waste disposal practice in the town. Natural phenomena, however, such as pyrite oxidation, could possible have …

Evaluation Of Wastewater Filtration, Bryant L. Benth, E. Joe Middlebrooks, Dennis B. George, James H. Reynolds

Reports

Tertiary filtration of secondary wastewater is frequently used to improve wastewater treatment plant effluent quality. Four experimental filter columns were operated at the Preston, Idaho, Wastewater Treatment Plant to evaluate the effectiveness of granular media, gravity filtration. The Preston plant is a trickling filter secondary treatment plant and services a population of approximately 3600 people. Four filter medium configurations were studied. Multi-media, dual-media, and single-media beds were constructed with the following media configurations: (1) coal-sand-garnet; (2) coal-sand; (3) sand-garnet; and (4) all sand. The filters were operated at two hydraulic loading rates. Effluents from the primary clarifier, trickling filter, and …

Studies Toward The Total Synthesis Of Antibiotic 593a, Robert B. Wardle

Undergraduate Honors Capstone Projects

In 1970 art article was published in the Journal of Antibiotics in which the isolation of a substance from the south African soil microorganism Streptomyces griseolutus designated 593A (NSC-135758) was reported. It was reported to inhibit the growth of human tumors in the chick embryo. Arison and Beck in 1973 proposed the structure to be 3,6-bis-(5-chloro-2 -piperidyl-)-2 ,5-piperizinedione based on spectral data.

In the ensuing years a number of further studies were made on the activity of 593A, It was found to be active against a number of solid tumors, several variants of leukemia, and in selectively inhibiting DNA synthesis. …

Plant Protection As A Consequence Of An Ant-Membracid Mutualism: Interactions On Goldenrod (Solidago Sp.), Frank J. Messina

Biology Faculty Publications

In central New York, two chrysomelid beetles, Trirhabda virgata and T. borealis, frequently cause severe defoliation of tall goldenrod, Solidago altissima. This plant is also the primary host of Publilia concava (Membracidae), a sap—feeding treehopper that is tended by ants, especially Formica spp. Staged encounters indicate that Formica ants attack adult Trirhabda beetles on goldenrod stems bearing membracids. Such stems escape defoliation by Trirhabda, and show greater mean height increment and seed production than their nearest neighbors without ants. The degree of plant protection depends on the duration of Formica presence. During Trirhabda outbreaks, only stems bearing Formica ants for …

Utah Science Vol. 41 No. 4, Winter 1980

Utah Science

105 WATER RIGHTS: CAN THEY BE BROKERED? Jay M. Bagley, Kirk R. Kimball, and Lee Kapaloski Active and complex water markets create problems for individuals and corporations alike in transferring and selling water rights or merely buying and selling the water itself. USU scientists believe a water rights brokerage service could simplify procedures and consolidate vital information.

108 FOOD AND NUTRITION PATTERNS IN THE U.S. Bonita W. Wyse, Carol T. Windham, and R. Gaurth Hansen The goal of analyzing consumer consumption patterns is to better understand what the American public is eating and what implications this has for national health. …

Iron And Life, Thomas Emery

Faculty Honor Lectures

Iron, iron, everywhere but. . . . The plight of the ancient mariner surrounded by undrinkable water could hardly have been more frustrating than life on earth with respect to iron. Iron is the fourth most abundant element of the earth's surface, exceeded only by oxygen, silicon, and aluminum. Virtually all forms of life from the simplest bacteria to humans require iron to catalyze numerous and complex metabolic reactions. Because of the diversity and complexity of the role of iron in the life process, it has even been suggested that the origin of life on earth centered around the catalytic …

Utah Science Vol. 41 No. 3, Fall 1980

Utah Science

71 TRAMPLING EFFECTS ON RANGELANDS Gerald F. Gifford and Manouchehr Dadkhah Protection of topsoil is the key to watershed management. Results show that this can be accomplished with a 50 percent protective ground cover. Degrees of trampling on various ground covers on different soils and slopes are compared.

74 SLUDGE-A WASTE OR A RESOURCE? Raymond W. Miller and Rex S. Spendlove Long considered unusable, sewage sludge is being studied for use as a crop fertilizer with definition of its possible consequences and benefits.

78 BEETLE KILL IN THE LODGEPOLE PINE Richard G. Ballard, Michael A. Walsh, and Walter E. Cole …