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The Effect Of Controlled Burning On Understory Vegetation And Soil Nitrogen In The Aspen-Bunchgrass Type, W. Wallace Covington, Ernest A. Kurmes, James R. Haisley

Aspen Bibliography

No abstract provided.

Data For Prediction Of Mechanical Properties Of Aspen Flakeboards, C.G. Carll, P. Wang

Aspen Bibliography

No abstract provided.

Aspen Succession In The Intermountain West: A Deterministic Model, Dale L. Bartos, Frederick R. Ward, George S. Innis

Aspen Bibliography

No abstract provided.

Role Of D Functions In Ab Initio Calculation Of The Equilibrium Structure Of H2s–Hf, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Full geometry optimizations are performed to determine the equilibrium geometry of the hydrogen‐bonded complex H₂S–HF. The angle between the plane of the H₂S moiety and the H‐bond axis calculated with the 4–31 G basis set is 106° as compared to the experimental value of 91±5°. This quantity is reduced significantly when d orbitals are added to the basis set, yielding an angle within experimental error of 91°. (AIP)

Monitoring Of Groundwater Levels For Real‑Time Conjunctive Water Management, Richard C. Peralta, Vince Mazur, Paul Dutram

Civil and Environmental Engineering Faculty Publications

Water users in the Arkansas Grand Prairie wish to maintain sufficient groundwater levels to: insure adequate groundwater reserves for time of drought, protect themselves from litigation caused by wells going dry, and insure a sustained yield. Achievement of these goals requires regular measurement of groundwater levels. Review of monitoring practice and technology indicates that spring and fall measurements taken over the entire area using steel tape and acoustic device is preferred for most long range planning. Continuous monitoring is indicated for critical parts of the region where saturated thicknesses are small. Desirable attributes of a data collection/transmission system for such …

Conjunctive Water Use Planning With Water Quality Constraints In Tooele Valley, Utah, Bhasker Rao K., Calvin G. Clyde, Rangesan Narayanan

Reports

The need for more efficient water management is gaining recognition due to the increased cost of water supply, the growth in the demand for water, and greater environmental and social impacts of water programs. "Conjunctive use" of surfact and groundwater resources provides opportunities for increasing net benefits to the water users. Past "conjunctive use" studies, however, have usually not included water quality constraints. In Tooele valley, Utah, spatial variation of groundwater qualtity (total dissolved solids) is significant. The areas of good (400-500 mg/1), fair (500-1,000 mg/1), and poor (1,000-3,000 mg/1) quality groundwaters were identified in an earlier study by the …

An Economic Evaluation Of Benefits And Costs Of Maintaining Instream Flows, Rangesan Narayanan, Dean T. Larson, A. Bruce Bishop, Parvaneh Amirfathi

Reports

Instream flows enhance recreation, hydropower, fish and wildlife maintenance, and riverine ecosytems. Each use has water requirements that vary over time in unique patterns. The determination of the overall instream requirement at any given time must be considered in competition with the demand for municipal and agricultural uses. Two obstacles to integrating instream uses into the appropriation system of water law are difficulty in satisfying the legal requirements of an appropriation for a public use and the fact that instream flow uses are considered more "environmental" than "economic" in character. The extreme options for allocating flow between these user groups …

Defensive Adaptations And Natural Enemies Of A Case-Bearing Beetle, Exema Canadensis (Coleoptera: Chrysomelidae), R. B. Root, Frank J. Messina

Biology Faculty Publications

The larval habit of constructing and carrying a portable case has evolved many times in the Holometabola. It is a widespread trait of the Trichoptera and Lepidoptera (e.g. the Coleophoridae and Psychidae). Among the Coleoptera, casebearing is found in four related subfamilies of the Chrysomelidae, the so-called camptosomates: Clytrinae, Cryptocephalinae, Chlamisinae, and Lamprosomatinae (B6ving and Craighead 1931). The larval case of many insects is thought to function primarily in defense by providing armor or camouflage (Otto and Svensson 1980). Here we describe the uses of the case and other defenses in a chlamisine beetle, Exerna canadensis Pierce, and speculate briefly …

Potential Use Of Arkansas River Water For Irrigation In The Plum Bayou Watershed, Richard C. Peralta, Paul W. Dutram

Civil and Environmental Engineering Faculty Publications

No abstract provided.

Estimated Potential Water Needs For The Eastern Grand Prairie Region By Irrigation Scheduling, Richard C. Peralta, Paul W. Dutram, Paul Killian

Civil and Environmental Engineering Faculty Publications

Prepare maps showing the annual, monthly and peak weekly volume of irrigation water required in each 3 mile by 3 mile cell of the study area for the selected cropping pattern. Maps are presented for "average" and "dry" climatological conditions.

Utah Science Vol. 43 No. 4, Winter 1982

Utah Science

87 LUNG DISEASE MORTALITY IN UTAH MINERS (1959-1978) S. H. Kan and J. E. Brockert Miners have long suffered from diseases associated with their occupation. Data are examined relative to disease occurrence and resultant death rates.

90 IMPROVING BLACKBRUSH RANGES R. D. Provenza, J. E. Bowns, J. C. Malechek, P. J. Urness, and J. E. Butcher Blackbrush may be small in size, but it has king-size, tough spines. Using goats and controlled grazing, researchers are finding ways to optimize livestock use of this shrub. The results of four years research are reported here.

96 IMPACT OF TRADE LIBERALIZATION ON UTAH …

Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries

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

The purpose of this research was to continue the assessment of the low-temperature geothermal resources of Cache Valley, Utah initiated by the Utah Geological and Mineral Survey under U.S. Department of Energy (DOE) contract DE-AS07-77ET 28393. Field work consisted of locating 90 wells and springs throughout the study area, collecting water samples for later laboratory analyses, and field measurement of pH, temperature, bicarbonate alkalinity, and electrical conductivity. Na+, K+, Ca+2, Mg+2, SiO2, Fe, SO4-2, C1-, F-, and total dissolved solids were determined in the laboratory. Temperature profiles were measured in 12 additional, unused wells. Thermal gradients calculated from the profiles …

Flood Insurance Study, City Of Layton, Utah, Davis County

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

This Flood Insurance Study investigates the existence and severity of flood hazards in the City of Layton, Davis County, Utah, and aids in the administration of the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. This study will be used to convert Layton to the regular program of flood insurance by the Federal Emergency Management Agency. Local and regional planners will use this study in their efforts to promote sound flood plain management.

Southeastern Utah Nuclear Waste Transportation Study, Bechtel Group Inc.

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

This report is published as a product of the National Waste Terminal Storage (NWTS) Program. The objective of this program is the development of terminal waste storage facilities in deep stable geologic formations for high-level nuclear waste, including spent fuel elements from commercial power reactors and transuranic nuclear waste for which the Federal Government is responsible.

The initial purpose of this study was to analyze and compare possible transport modes and corridors connecting each of four candidate sites in Utah with existing rail lines of the Denver and Rio Grande Western Railroad (D&RG) or the Atchison, Topeka, and Santa Fe …

Utah Science Vol. 43 No. 3, Fall 1982

Utah Science

65 MAN-MADE MINK High-energy diets to increase pelt size caused sterility. Diets were then restricted prior to breeding and increased afterward to produce the desired larger pelts.

67 VETERINARY CYTOGENETICS T. D. Bunch and A. D. Stock Ongoing experiments based on chromosomal evolution of sheep and goats at the ADVS Cytogenetics Laboratory uncover practical economic concepts to perfect cytogenetic techniques for animal producers.

72 RADIATION FROST PROTECTION L. F. Hall A backyard Hubbard Squash provided observable evidence to prompt studies of progressive frost damage as influenced by protective foliage.

76 1982-THE YEAR THE PLUG FELL OUT E. A. Richardson, G. …

Progress Report For The Dairy Research Advisory Board, Various Authors

Other Documents

No abstract provided.

Flood Insurance Study, Federal Emergency Management Agency

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

This Flood Insurance Study investigates the existence and severity of flood hazards in the City of Ogden, Weber County, Utah, and aids in the administration of the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. This study will be used to convert Ogden to the regular program of flood insurance by the Federal Emergency Management Agency. Local regional planners will use this study in their efforts to promote sound flood plain management. IN some states or communities, flood plain management criteria or regulations may exist that are more restrictive or comprehensive than those on …

Religion And Economic Development In Utah, 1847-1900, L. Dwight Israelsen

Economic Research Institute Study Papers

When Mormon settlers arrived in the Great Basin in the summer of 1847, the region was still Mexican territory notable mainly for its iso1ation--1,OOO miles to the nearest markets--and for its inhospitable environment. The economic isolation of Utah ended with the completion of the transcontinental railroad in 1869. During the interim, the Mormons developed a regional economic system which coined and printed its own medium of exchange, engaged in "foreign trade" with the "States," dealt with balance-of-payments problems, assimilated large numbers of immigrants, and began the process of economic development. The affairs of this regional commonwealth were directed by Brigham …

Utah Science Vol. 43 No. 2, Summer 1982

Utah Science

39 DIABETES MELLITUS MORTALITY IN UTAH: 1940• 1980 S. H. Kan, G. E. Reiber, and Y. Kim Sociologists at USU compared Utah's overall and diabetes death rates with those of the U.S. Utah's death rates were consistently lower.

42 HOW STEMS BEND UP F. B. Salisbury, J. E. Sliwinski, W. J. Mueller, and C. S. Harris When a plant is placed on its side, its stem(s) bend upward, away from the source of gravity. This article explores the mechanics of this response and the changes that take place within stems as they bend.

50 AGRICULTURAL LAND USE AND LAND•USE CONTROL …

Primary Nectar Robbing In Mertensia Oblongifolia, A Case Study, Judith Visty

Biology

The primary nectar robbing of Mertensia oblongifolia (Nutt.) G. Don, a long-tubed bee-pollinated borage was investigated. The primary robbers, short-tongued Bombus occidentalis Cresson queens, removed nectar through a hole made in the corolla. These robber bumble bees were never observed to act as pollinators. The long-tongued solitary bee pollinators of M. oblongifolia concentrated their visits (>80%) during the hours 0900-1400 (MST). Pollinators did not seem to discriminate in visits between robbed and non-robbed flowers. Robber visits were more widely distributed from 0730 to 1500 (MST). During the part of the season when pollinators were most active their level of …

Effects Of Cyclic Nucleotide Metabolism And Light On The Control Of The Oscillations Of The Pineal Enzyme, N-Acetyltransferase, Annemarie B. Hamilton

Biology

The purpose of this study was to examine the effects of light on the oscillations of the pineal enzyme, N-acetyltransferase through possible alterations in cyclic nucleotide metabolism. The levels of the cyclic nucleotides, cAMP and cGMP were measured in the chick pineal along with measurement of N-acetyltransferase activity in vivo and in vitro under cycling light (12 hours light: 12 hours dark) and under constant illumination. Activities of cAMP and cGMP phosphodiesterases and adenyl and guanyl cyclases were also measured under the same environmental conditions as those for the cyclic nucleotides, both in vivo and in vitro. Cyclic nucleotide levels …

Molt Schedules Of The Mountain Chickadee (Parus Gambeli) And The Black-Capped Chickadee (Parus Atricapillus), Antoinette Louise Pepin

Biology

Postnuptial wing molt was studied for Mountain Chickadees (Parus gambeli) and Black-capped Chickadees (Parus atricapillus) living in the Wasatch Mountains of northern Utah. The pattern of postnuptial wing molt was typical of many adult passerines. Three factors which might affect the timing and rate of molt were analyzed for these chickadees: sex, elevation and year. Molt for male chickadees was slower than for female chickadees. Male Mountain Chickadees began molt before female Mountain Chickadees. Mountain Chickadees live at higher elevations, where the frost-free season is shorter. Molt and winter territory establishment may overlap in the annual time budget of Mountain …

Studies Of Selected Predators Of Black Grass Bugs (Labops Hesperius Uhler And Irbisia Brachycera Uhler) On Ranges Of Utah, Jaime Eduardo Araya

Biology

The activity of selected arthropod predators on both immature and adult black grass bugs, Labops hesperius Uhler and Irbisia brachycera Uhler, in infested Utah ranges was investigated. Adult Nabis alternatus was found to the most important predator of black grass bugs, especially in early spring, when nabids were the most abundant predaceous species. Immature nabids consumed the bugs but because of their smaller size they preyed mostly on leafhoppers, smaller plant bug nymphs and other immature nabids. A shortwinged species of Nabis (probably N. vanduzeei) showed good potential as a predator of adult Labops and Irbisia in laboratory feeding tests. …

Locomotion Of Rock Squirrels (Spermophilus Variegatus), Awadh Al-Johny

Biology

Locomotion and climbing ability of rock squirrels (Spermophilus variegatus) were studied in an outdoor enclosure from June 15 to July 30, 1981, and in an indoor enclosure from October 1981 to June 1982. Dowels and tree branches of different diameters were used to test the animals' climbing ability and movements. Uinta ground squirrels (Spermophilus armatus) and red squirrels (Tamiasciurus hudsonicus) were used for comparison. Animals were filmed with a 16 mm camera and a videotape earners. Films were analyzed using a slow motion projector, and drawings were made directly from the films. Speed in m/s and kph and maximum horizontal …

The Biology And Ecology Of Eumegachile (Sayapis) Pugnata (Say) (Hymenoptera: Megachilidae), A Pollinator Of Commercial Sunflower, Donald R. Frohlich

Biology

Eumegachile (Sayapis) pugnata (Say) was studied in a greenhouse and in the field to elucidate its natural history and evaluate its potential as a pollinator of commercial sunflower. Cell building, provisioning, ovipositioning, and development are described. Mortality factors, emergence sequences, sizes, and sex ratios were similar to those reported in other studies. Unlike social bees E. pugnata foraged in such a way that pollen collection and not energy (nectar) acquisition was maximized. Characteristics that contribute to its manageability as a pollinator include the fact that it nests successfully in man made devices that can be moved from field to field …

Avian Resource Partitioning Along A Montane Sere, Kimberly Gray Smith

Biology

Avian vegetation-use and foraging behavior were studied along a spruce-fir sere in the Bear River Mountains of northern Utah and southern Idaho from 1976 to 1978 on four 10 ha plots--one each in meadow, aspen, fir and spruce. A total of 71 species were encountered, of which 43 bred in at least one of three breeding seasons. Avian vegetation-use was quantified on the 3 forested plots by sampling a total of 197 (0.05ha) plots around singing male birds of 15 species. Also, 75 random plots (25 in each seral stage) were sampled to characterize the available vegetation. Principal component analysis …

Studies On Rotavirus Growth In Cell Culture And Various Aspects Of Replication, Scott M. Clark

Biology

The effect of trypsin on the infectivity and cultivation of rotaviruses has been studied. It was found that trypsin increases the infectivity of bovine, simian and porcine rotaviruses from 10 to 400-fold and that the enzyme increases the yield of bovine rotavirus in cell culture up to 1000-fold. Studies on the mechanism of trypsin enhancement of rotaviral infectivity indicate that the enzyme facilitates the uncoating of parental virus in the infected cell. Studies on the involvement of two particle types in bovine rotavirus replication indicate that the yield of light (L) infectious virions and dense (D) non-infectious particles in various …

Factors Determining The Abundance And Distribution Of Rodents In A Shrub-Steppe Ecosystem: The Role Of Shrubs, Robert R. Parmenter

Biology

This study addressed the relative importances of shrub "resources" on a rodent community in a sagebrush dominated shrub-steppe ecosystem in southwestern Wyoming. Direct effects of shrubs (i.e., providing rodents with "food and cover") were assessed by removing shrubs from a 1.25 ha study plot and monitoring both rodent populations and their food resources. Shrub-related "food and cover" was found to be unimportant to deermice (Peromyscus maniculatus), Great Basin pocket mice (Perognathus parvus), northern grasshopper mice (Onychomys leucogaster) and Uinta ground squirrels (Speromphilus armatus), as shrub removal caused no significant changes in population sizes, sex ratios or age structure. Least chipmunks …

Utah State University Commencement, 1982 – Main Campus, Utah State University

Commencement Programs

Eighty-Ninth Annual Commencement of Utah State University

The Teton Dam Disaster: Tragedy Or Triumph?, F. Ross Peterson

Faculty Honor Lectures

Six years ago, Charles Peterson and I received a carefully wrapped manuscript in the mail. An enclosed letter described in graphic detail the story of the water-stained box and its contents. The letter was from a graduate student who lived and taught in Sugar, . Idaho. This student had written a master's thesis of questionable merit, and we had rejected it in 1975 and had demanded a complete rewrite. The disgruntled and discouraged author had placed the ill-fated work in a box on the desk in his study. It remained there for nearly one year. Then onJune 5, 1976, the …