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Atomic Simulation Of The Al2 (111) (110) Edge Dislocation In Alpha-Iron, Brent L. Adams, P. C. Gehlen, J. P. Hirth, R. G. Hoagland

Faculty Publications

The authors are pleased to acknowledge: the support of this research by the National Science Foundation under Grant DMR 74-21243 and by the provision of computer time by The Ohio State University and by Battelle Columbus Laboratories; and helpful comments on the manuscript by V Vitek. Computer simulation is used to obtain the plane strain and non-plane strain equilibrium core structures for the a/2 <111> {110} edge dislocation in alpha-iron as modelled by the Johnson potential. The methods of the integral formulation of anisotropic linear eleasticity theory are employed in the analysis. Flexible core boundary methods reveal that positive volume expansions …

Karl G. Maeser's German Background, 1828-1856: The Making Of Zion's Teacher, Douglas F. Tobler

BYU Studies

No abstract provided.

Serenade, Donald R. Marshall

BYU Studies

No abstract provided.

Columbia River, Clinton F. Larson

BYU Studies

No abstract provided.

The Apocalypse Of Adam, Stephen E. Robinson

BYU Studies

No abstract provided.

Notes And Comments, Byu Studies

BYU Studies

No abstract provided.

Environmental Interaction In Summer Algal Communities Of Utah Lake, Mark C. Whiting

Theses and Dissertations

Utah Lake is a shallow eutrophic lake located in central Utah. It is characterized by high nutrient and silt loads and by large algal blooms in late summer and early fall. Phytoplankton samples and environmental data were taken from June through August 1974. Phytoplankton species were identified and then quantified in a Palmer counting cell. Environmental continuum theory was employed to describe algal succession and regression analysis was used to discover interactions between algal communities and the environment. Phytoplankton communities in June were characterized by high species diversity. As the lake environment became stressed in late summer due to higher …

Building The City Of God: Community And Cooperation Among The Mormons Leonard J. Arrington, Feramorz Y. Fox, And Dean L. May, J. R. T. Hughes

BYU Studies

No abstract provided.

Accumulation And Metabolism Of Triphenyltin Hydroxide (Du-Ter) In Channel Catfish, Hal B. Jenson

Theses and Dissertations

The fate of ring-14C labeled triphenyltin hydroxide was studied in a model ecosystem consisting of soiI, water, and channel catfish (Ictalurus punctatus). Two initial levels of triphenyltin hydroxide concentration in soiI, 1.0 and 0.010 ppm, were compared. The soiI showed a gradual loss of 20 to 30% of the total 14C residues. Only about 33% of the remaining soil residues could be extracted and almost all of these were triphenyltin hydroxide. Total residues in the water were very low. Catfish muscle and viscera accumulated 14C residues continually throughout the treatment portion of the experiment. When the catfish were transferred to …

Canopy Influence As A Factor In Determining Understory Community Composition, Richard B. Wilcox

Theses and Dissertations

Four tree species (i.e. Pinus ponderosa, Juiperus scopulorum, Quercus Gambelii, and Ceanothus velutinus were chosen for this study. Ten individuals of each species were selected and their associated understory communities and adjacent non-understory communities sampled. Data taken included biotic and abiotic parameters. The data was subjected to similarity index analysis, cluster analysis, discriminant analysis, and x^2 analysis. The results were confirmed by all tests. The forest canopy was shown to directly influence the understory community. The understory community is a shrub-grass dominated type while the non-understory community is an annual-forb dominated type. The different tree species were also shown to …

The Dependence Of The Apparent Pk Of Ion Exchange Celluloses Of Ionic Strength, Paul Cyril Gillespie

Theses and Dissertations

Diethylaminoethyl cellulose was titrated with acid and base in various concentrations of NaCl. The pK values were determined from titration curves using a graphical technique. Two titratable groups were observed from the acid titration curve, a major and a minor group. The minor group, which represented 20% of the acid titration, was barely detectable in the base titration curve and had a salt-independent pK of 6.0. The pK of the major group was strongly salt-dependent and was approximately a linear function of log N NaCl. An equilibrium shift caused by the counter ion may explain the salt dependence. Hydrogen bonding …

Partitioning Of Space And Time By The Western Jumping Mouse, Zapus Princeps Utahensis Hall, John M. Deacon

Theses and Dissertations

Intraspecific competition is important in determining habitat utilization by members of a single species. Effective use of habitat may involve partitioning the available resources: space, time and food among individuals of different age, sex, and/or reproductive state. Numerous publications deal with interspecific competition (McCloskey and Fieldwick 1975, Cody 1973, Rosenzweig 1973, Stewart and Levin 1973, Gaby 1972, Brown 1971, Koshkina 1971, Sheppe 1967, Caldwell and Gentry 1965, Cameron 1964, Clough 1964, Gause 1932), but little has been written on intraspecific competition among populations of organisms in nature.

Isolation, Purification, Scanning Electron Microscopy And Bacterial Dna Uptake Of Plant Protoplasts, Bronwyn G. Hughes

Theses and Dissertations

Protoplasts were isolated from tobacco and barley leaves in sucrose or mannitol using commercially available cellulases and macerozymes. Barley growth and protoplast isolation and purification conditions were optimized so that protoplasts were obtained in high yields free of unwanted debris and organelles. A technique for processing barley and tobacco protoplasts for examination by scanning electron microscopy was developed in which protoplasts seem to have maintained their structural integrity. Barley and tobacco protoplasts took up 3H-B. subtilis DNA, 125I-B. subtilis DNA or 125I-M. luteus DNA as a linear function of time (0-6 hr) and DNA concentration (0-200 μg/ml). Up to 16 …

Cyrus E. Dallin: Let Justice Be Done Rell G. Francis, Robert S. Olpin

BYU Studies

No abstract provided.

Full Issue, Vol. 37 No. 1

Great Basin Naturalist

No abstract provided.

Cytosol Binding Of Steroid Hormones In Sheep Brains And Pituitaries, David Carl Marcusen

Theses and Dissertations

The uptake and binding of tritiated cortisol, corticosterone, and dexamethasone in cytosols isolated from various regions of non-adrenalectomized (intact) and adrenalectomized sheep brains and pituitaries were studied. [3H]-cortisol and [3H]-corticosterone were bound preferentially by cytosols from the hippocampal and septal regions of the brain, whereas, [3H]-dexamethasone was preferentially bound by cytosol from the pituitary. Cytosols isolated from the brains of adrenalectomized sheep bound significantly more [3H]-corticosterone than did cytosol from the brains of intact animals. Pre-incubation of cytosols from the hippocampus of adrenalectomized animals with non-radioactive testosterone or estradiol did not significantly block the subsequent binding of [3H]-cortisol. Results of …

Utilization Of Nest Boxes By Birds In Three Vegetational Communities With Special Reference To The American Kestrel (Falco Sparverius), Laurence Barrett Mcarthur

Theses and Dissertations

This study was designed to determine if, by providing artificial nest sites, a raptorial predator could be attracted into an area where suitable sites are limited. The American Kestrel (Falco sparverius) was a common species in the area and nest boxes designed for their use were placed in three vegetational types in western Utah and eastern Nevada. Seventy boxes were available in 1975 and 110 in 1976. Kestrels nested both years in the salt-desert shrub community but were absent from the pinyon-juniper and riparian areas. Four other bird species nested in the latter two areas, however. In 1975 the nesting …

Book Review: "Nathaniel Hawthorne Meets Swiss Immigrants: A Research Note"

Swiss American Historical Society Newsletter

Walter L. Robbins , "Nathaniel Hawthorne Meets W Immigrants: A Research Note."

Randall Stewart reports in his work Nathaniel Hawthorne. A Biography (New Haven: Yale University Press, 1948), p . 42, that Hawthorne had undertaken during the "solitary years" 1825 to 1837 various journeys, in 1833 or 1834 possibly to Niagara and Detroit. He published his apparently firsthand descriptions in the New England Magazine Volume XI (December 1835), 398-409, which contains a report entitled "The Canal-Boat." In that sketch Hawthorne tells of his encounter with a Swiss immigrant group. It is quoted here after the following edition: Nathaniel Hawthorne, Mosses …

The Thirteenth Annual Meeting Of The Swiss American Historical Society, Bruno Gujer, Leo Schelbert

Swiss American Historical Society Newsletter

The thirteenth annual meeting of the reactivated SAHA was held on Saturday, October 30, 1976, at the Embassy of Switzerland, 2900 Cathedral Avenue, N.W., in Washington, D.C.

Book Review: "The Postage Stamps Of Switzerland 1843-1862", H. K. Meier

Swiss American Historical Society Newsletter

Paul Mirabaud and Alex de Reuterskiold, The Postage Stamps o f Switzerland 1843-1862, Paris, 1899 . Reprint by Quarterman Publications, Inc., 5 South Union Street, Lawrence, Massachusetts 01843, 1975. $35.00.

Quarterman Publications provides the following description: "The Postage Stamps of Switzerland was originally published in 1899 in a limited edition of which only 150 copies were in English. Chapters on the various Cantonal issues, the transitional Hayone [sic: should be Rayons), and the seated Helvetias are among those Mirabaud, and his colleague Baron Alex de Reuterskiold, assembled from information obtained from the existing literature a well as the records and …

Pierre-Frederic Droz: The 'American': The Story Of An Itinerant Watchmaker, Leo Schelbert

Swiss American Historical Society Newsletter

Most immigrants, especially those who came to stay in a certain country for only a short while, belonged to the "inarticulate," that is to those whose experiences, joys and trials went largely unrecorded. A few of them, however, did leave rich and vivid accounts of their journeys and adventures. To them belongs Pierre-Frederic Droz, known to his countrymen as the "American" who remained for a good part of his life a man on the move.

Full Issue

Swiss American Historical Society Newsletter

No abstract provided.

Certain Edaphic And Biotic Factors Affecting Vegetation In The Shadscale Community Of The Kaiparowits Area, Vane Orlan Campbell

Theses and Dissertations

A study area on the southern extensions of the Great Basin cold desert (Kaiparowits Basin, Utah) was selected which has had varying amounts of disturbance. Areas with similar slope and exposure in the Shadscale community were sampled. At each site, soil samples were collected and percent sand, percent clay, percent silt, soluble salts, and hydrogen ion concentrations were measured. Cluster analysis based on percent frequency of the perennial species showed that eight groups or sub-communities were definable within the area sampled. Patterns within the vegetation were shown to be independent with the use of cluster analysis. Discriminant analysis on soil …

Intermolecular Potential Surfaces From Electron Gas Methods. Ii. Angle And Distance Dependence Of The A’ And A” Ar–No(X^2ii) Interactions, Glen C. Nielson, Gregory A. Parker, Russell T. Pack

Faculty Publications

Angle dependent intermolecular potential energy surfaces for the two states (2A’ and 2A”) that arise from the interaction of ground (X^2II) state NO with Ar are calculated using the electron gas model to obtain the short range interactions. The average and difference of the two interaction energies are fit to analytic forms convenient for use in scattering calculations and joined smoothly onto the long range van der Waals potential previously determined. The results, which appear to be of useful accuracy, and the applicability of the electron gas model to such open shell–closed shell interactions are discussed.

Mccarthyism In Utah, Richard Swanson

Theses and Dissertations

The exaggerated anti-Communist crusade of Senator Joseph McCarthy allegedly gained the support of a majority of Americans during the early 1950's. It is historically important and interesting to question that supposition by considering the character of McCarthy's following in each state. This study shows that in Utah sympathy for the second Red Scare abounded and evidences of McCarthyism were readily apparent.

Three indicators illustrate Utah's support for the Wisconsin senator. The defeat of Elbert Thomas in 1950 dramatically epitomizes the successful use of incriminating allegations effectively employed by McCarthy. The election, or re-election, of McCarthy supporters and the defeat of …

George Q. Cannon's Views On Church And State, Lyndon W. Cook Sr.

Theses and Dissertations

Writers of nineteenth century Utah generally recognize George Q. Cannon's religious and political influence as second only to that of Brigham Young. Having occupied several positions of importance in the political arena as well as in the Mormon Church, Cannon is a major figure in Utah history whose life and thought merit careful examination.

This treatise is a study of George Q. Cannon's views on the institutions of church and state. After presenting a biographical sketch of Cannon's life, it examines his beliefs regarding the religious clauses in the First Amendment, and the place of revelation, positive law, and majority …

The Book Of Mormon And The American Revolution, Richard L. Bushman

BYU Studies

No abstract provided.

The Paradox Of Mormon Folklore, William A. Wilson

BYU Studies

No abstract provided.

Hagoth And The Polynesian Tradition, Jerry K. Loveland

BYU Studies

No abstract provided.

Missionaries To The Saints, A. Glen Humpherys

BYU Studies

No abstract provided.