Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Brigham Young University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 18931 - 18960 of 19120

Full-Text Articles in Entire DC Network

Environmental Factors In Relation To The Salt Content Of Salicornia Pacifica Var. Utahensis, D. J. Hansen, D. J. Weber Mar 1975

Environmental Factors In Relation To The Salt Content Of Salicornia Pacifica Var. Utahensis, D. J. Hansen, D. J. Weber

Great Basin Naturalist

The stability of the salt content in Salicornia pacifica Standl. var. utahensis (Tidestrom) Munz in relation to environmental changes was investigated. Salicornia pacifica communities have a characteristic soil pH of 7.5 to 8.0 ± 0.2 and a constant subsurface soil moisture level of 25 to 35 percent. The ion content in the tissue of S. pacifica remained constant despite increased moisture stress throughout the growing season. The concentrations of the salts were significantly higher in the surface soil layers than in the subsurface layers around the roots. Normal metabolic processes in the tissues of S. pacifica appear to occur even …

Go to article

The Authorship And Date Of Publication Of Siren Intermedia (Amphibia: Caudata), Hobart M. Smith, Rosella B. Smith, H. Lewis Sawin Mar 1975

The Authorship And Date Of Publication Of Siren Intermedia (Amphibia: Caudata), Hobart M. Smith, Rosella B. Smith, H. Lewis Sawin

Great Basin Naturalist

However "just" it might be to credit LeConte, 1828, with Siren intermedia, both Harlan, 1826 (not 1827 as often cited), and Barnes, 1826, antedate LeConte's proposal of the name. As the earliest, Barnes, 1826, stands credited with it. In analysis of precedent for these conclusions, types of taxonomic plagiarism (calculated vs. innocent, homoplagiarism vs. heteroplagiarism) and the distinctions between nomina nuda and nomina dubia are reviewed, giving examples of each category.

Go to article

Bryan, Populism And Utah, Herbert E. Cihak Jan 1975

Bryan, Populism And Utah, Herbert E. Cihak

Theses and Dissertations

William Jennings Bryan exercised great political power for thirty years in America. Through his efforts the Democratic Party power base was broadened to include Jews, Negroes businessmen, and farmers. Bryan's call for political and social reform found many supporters in the State of Utah.

It is difficult to assess what actually caused William J. Bryan to lose the 1900 Presidential election in Utah. Yet, we must put to rest the conclusion that he lost solely because silver was an unimportant issue to the Utah electorate in 1900. The powerful influence of the Church of Jesus Christ of Latter-day Saints on …

Go to article

The Creation, Development, And Design Of A Course For Providing Missionaries At The Language Training Mission In Provo, Utah, With The Necessary Communication Skills To Teach The Gospel To The Hearing Impaired Who Use The American Sign Language, Byron F. Crookston Jan 1975

The Creation, Development, And Design Of A Course For Providing Missionaries At The Language Training Mission In Provo, Utah, With The Necessary Communication Skills To Teach The Gospel To The Hearing Impaired Who Use The American Sign Language, Byron F. Crookston

Theses and Dissertations

The purpose of this study was to develop a course outline to begin the teaching of the American Sign Language at the Language Training Mission in Provo, Utah. Presently there is no program offered to train missionaries to teach the eight discussions to the hearing impaired who use sign language and fingerspelling to communicate. This study attempts to provide such a course outline that can later be developed into a complete training program.

To establish a criterion for this course, existing theories and curriculum guides for teaching sign language were reviewed and summarized. A survey for training interpreters, particularly in …

Go to article

An Analysis Of The Doctrinal Teachings Of President George Albert Smith, Robert K. Mcintosh Jan 1975

An Analysis Of The Doctrinal Teachings Of President George Albert Smith, Robert K. Mcintosh

Theses and Dissertations

George Albert Smith, Eighth President of The Church of Jesus Christ of Latter-day Saints, was a General Authority during some of the most traumatic years in world history. His teachings and doctrines were practical, rather than philosophical or theoretical, and were applicable to a time when the world needed a message of hope and love. The two key ideas of his teachings were based on the two great commandments of Christ: love of God and love of neighbor. In addition, he also gave vital messages on the importance of obedience to God's laws, the character and attributes of God, the …

Go to article

A History Of Latter-Day Saint Screen Portrayals In The Anti-Mormon Film Era, 1905-1936, Richard Alan Nelson Jan 1975

A History Of Latter-Day Saint Screen Portrayals In The Anti-Mormon Film Era, 1905-1936, Richard Alan Nelson

Theses and Dissertations

Polygamy was the key issue which acted to popularize opposition to the Latter-day Saint Church during the years 1905-1936. As a result of the continuing controversy over the so-called "Mormon Question," secular moviemakers in this period planned or actually produced nearly forty motion pictures containing Mormon characterizations. Although several important pro-LDS movies were made (some with Church assistance), the anti-Mormon photoplay dominated the silent film era portrait of the Saints. Murder and polygamy as basic themes provide clear reference to traditional literary and theatrical images.

Early attempts by Utah and Church officials to censor the offending pictures were unsuccessful. Following …

Go to article

A Sociological Profile Of Lds Inmates At Utah State Prison, Robert D. Payne Jan 1975

A Sociological Profile Of Lds Inmates At Utah State Prison, Robert D. Payne

Theses and Dissertations

The present thesis is a study of 103 LDS inmates at Utah State Prison. It tests the hypothesis that the inmates are more likely to come from non-cohesive homes. In 1959, Dr. Evan T. Peterson completed a study of three thousand 12-18 year old LDS male youths. Out of Dr. Peterson's respondents, 112 sixteen-eighteen year old subjects were selectively drawn to match the inmate sample in terms of fathers' occupation and education. This stratified sample was used as the control group.

The study confirmed the above family environment hypothesis. It found that when compared to the control group, the LDS …

Go to article

A Summary Of Biological Investigations Concerning The Great Salt Lake, Utah (1861–1973), Doyle W. Stephens Sep 1974

A Summary Of Biological Investigations Concerning The Great Salt Lake, Utah (1861–1973), Doyle W. Stephens

Great Basin Naturalist

The early stages in the history of biological investigation of the Great Salt Lake involved the identification and establishment of taxonomic relationships of the indigenous flora and fauna. A result of advancements in systematic biology is that many of the earlier names of organisms have been placed in synonomy. Recent interest in the lake has centered on biological productivity and interactions of components of the ecosystem. The creation of two ecologically distinct lakes by the construction of a railroad causeway has further enhanced the biological complexity of what was originally believed to be a lifeless body of brine.

Go to article

Biochemical Parameters Of Hereditary Chondrodysplasia In Mice, Trent D. Stephens Aug 1974

Biochemical Parameters Of Hereditary Chondrodysplasia In Mice, Trent D. Stephens

Theses and Dissertations

Cartilage from newborn mice homozygous for chondrodysplasia contains normal quantities of protein and chondroitin sulfate. Mutant fetal cartilage incorporates normal amounts of sulfate, glucose, and glucosamine. Overnight rinsing with water removes about 25% of the incorporated sulfur and existing uronic acid from mutant ribs and about 55% from mutant limbs. Control ribs and limbs are affected very little by such a rinse. The diffusability of chondroitin sulfate (represented by incorporated sulfur and uronic acid) may be due to a lack of covalent bond formation between chondroitin sulfate and collagen.

Go to article

Macrocyclic Polyether Sulfide Syntheses, The Preparation Of Thia-Crown-3, 4, 6, And 7 Compounds, Yau-Kwong Joseph Hui Apr 1974

Macrocyclic Polyether Sulfide Syntheses, The Preparation Of Thia-Crown-3, 4, 6, And 7 Compounds, Yau-Kwong Joseph Hui

Theses and Dissertations

Macrocyclic polyether sulfides have been prepared by reacting an oligoethylene glycol dichloride with a dithiol or sodium sulfide in ethanol. The following new compounds were prepared: 1-thia-(9-crown-3), 1,4-dithia-(9-crown-3), 1,4-dithia-(12-crown-4), 1,4,7-trithia-(12-crown-4), 1-thia-(18-crown-6), I,4-dithia-(18-crown-6), 1,7-dithia-(18-crown-6), 1,4,7-trithia-(18-crown-6), 1,7-dithia-(21-crown-7), 1,4,7-trithia-(21-crown-7). Four other previously reported macrocyclic polyether sulfides were also prepared. The symmetry of the nmr spectra of these compounds give added evidence for the proposed ring structures. The following subjects were presented and discussed: studies of cyclization by-products, dependence of cyclization yield on the size of the rings, high dilution principle and its application, medium-sized rings, effect of hetero-atoms on cyclization and melting point …

Go to article

Aspects Of Salt Tolerance Of Salicornia Pacifica Standl. Var. Utahensis (Tidestrom) Munz, Dennis J. Hansen Apr 1974

Aspects Of Salt Tolerance Of Salicornia Pacifica Standl. Var. Utahensis (Tidestrom) Munz, Dennis J. Hansen

Theses and Dissertations

Aspects of salt tolerance of Salicornia pacifica were investigated. Survival of this plant in a saline environment is due to many interacting factors. A soil pH of 7.5 to 8.0 +- 0.2 and a constant sub-surface soil moisture level of 25 to 35% are necessary for plant survival. A fluctuating lower soil moisture leevel and higher pH favor etablishment of Distichlis stricta. The ion content in S. pacifica remained constant despite increased moisture stress throughout the growing season due to accumulation of salts which were significantly higher in the surface soil layers than in the subsurface layers around the roots. …

Go to article

Effects Of Chemicals On The Germination Of Pollen Grains Of Torenia Asiatica Linn, E. M. V. Nambudiri, M. K. Thomas Mar 1974

Effects Of Chemicals On The Germination Of Pollen Grains Of Torenia Asiatica Linn, E. M. V. Nambudiri, M. K. Thomas

Great Basin Naturalist

Germination studies of the pollen grains of a Scrophulariaceae plant, Torenia asiatica Linn. have revealed that the maximum percentage of germination and longer tubes were attained in 15 percent sucrose solution. Among the chemicals tried, calcium and boron enhanced germination. Less germination occurred among grains treated with potassium or magnesium salts. Abnormalities such as branched tubes with or without vesicles were found in chemically treated pollen grains.

Go to article

The Tenth Annual Meeting Of The Swiss American Historical Society Mar 1974

The Tenth Annual Meeting Of The Swiss American Historical Society

Swiss American Historical Society Newsletter

The tenth annual meeting of the reactivated SAHS started promptly at 10:30 a.m. at the Swiss Town House, 35 Wes 67th Street in New York City. Dr. Heinz K. Meier, SAHS President, welcomed the 27 people attending and officially opened the session.

Go to article

Full Issue Mar 1974

Full Issue

Swiss American Historical Society Newsletter

No abstract provided.

Go to article

An Analysis Of Visual Religious Symbols Appearing In The Improvement Era, Ensign, And New Era Published By The Church Of Jesus Christ Of Latter-Day Saints From 1952-1972, Carl Landus Christensen Jan 1974

An Analysis Of Visual Religious Symbols Appearing In The Improvement Era, Ensign, And New Era Published By The Church Of Jesus Christ Of Latter-Day Saints From 1952-1972, Carl Landus Christensen

Theses and Dissertations

This study analyzes the appearance of eighty visual religious symbols in the Improvement Era, Ensign, and New Era, published by the Church of Jesus Christ of Latter-day Saints from 1952-1972. The study notes their frequency and distribution as well as noting their size, the medium used to render them and the correlation of their religious meanings to the articles they illustrate.

The findings of this study indicate that visual religious symbols are used and that many of them have a high degree of correlation to the articles they illustrate.

This study gives suggestions to those artists who …

Go to article

Proselyting Techniques Of Mormon Missionaries, Jay E. Jensen Jan 1974

Proselyting Techniques Of Mormon Missionaries, Jay E. Jensen

Theses and Dissertations

This study is a review of proselyting techniques in the full-time missionary program of the Church of Jesus Christ of Latter-day Saints from 1830 to 1974. Official handbooks as well as Mormon mission publications were the major sources. The writer's experience as a full-time missionary gave additional perspective.

Missionary techniques involved personal contacting on the streets and door to door. Group contacting came through public meetings and the mass media. Church members played a vital role in contacting and fellowshipping nonmembers. Early proselyting lesson plans written in outline form emphasized logic and reason. Later ones were in dialogue form and …

Go to article

Mormon Arts Volume I. Lorin F. Wheelwright And Lael J. Woodbury, Eds., Richard G. Oman Oct 1973

Mormon Arts Volume I. Lorin F. Wheelwright And Lael J. Woodbury, Eds., Richard G. Oman

BYU Studies

No abstract provided.

Go to article

The Effect Of Haloxon And Thiabendazole On The Free-Living Stages Of Haemonchus Contortus, Gary Mccallister Aug 1973

The Effect Of Haloxon And Thiabendazole On The Free-Living Stages Of Haemonchus Contortus, Gary Mccallister

Theses and Dissertations

This study was undertaken to determine the effect of thiabendazole and haloxon on the free-living stages of Haemonchus contortus and to determine the suitability of the free-living stages for their use in primary drug evaluation for chemotherapy or for chemical control of free-living stages. Cleaned unembryonated ova, embryonated ova, first-, second-, third-, and exsheathed third-stage larvae were exposed to suspensions of 5.0%, 1.0%, 0.5%, 0.25%, 0.12%, 0.05%, and water soluble concentrations of each drug for exposure times of 0.25, 0.50, 1.0, 2.0, 4.0, 8.0, and 16.0 hours at pH 7.0 and 25° C. Survival was assessed by observing any subsequent …

Go to article

Light And Electron Microscopy Investigation Of Developing Wheat Caryopses Infected By Tilletia, Melvin Douglas Grove Aug 1973

Light And Electron Microscopy Investigation Of Developing Wheat Caryopses Infected By Tilletia, Melvin Douglas Grove

Theses and Dissertations

Caryopses of wheat were studied during infection by Tilletia caries and T. controversa. Initially the pathogens penetrated embryos of the host. After the embryo tissue was consumed by the fungi, endosperm tissue was penetrated and consumed. Initial penetration of endosperm tissue was in localized areas. During infection the fungus mycelium spread intercellularly, but occasionally was seen intracellularly. As the host tissue was consumed teliospores were formed. At maturity a host cell layer 4-6 cells thick remained which retained the mature teliospores. Histochemical studies indicated that carbohydrates and lipids of the host disappeared soon after invasion by the pathogens. Nuclei and …

Go to article

Ultrastructure Of Histochemically Localized Cholinesterases In Central And Peripheral Nervous Systems Of Two Insects: Periplaneta Americana L. And Acheta Domestica L, Clifford James Stratton Aug 1973

Ultrastructure Of Histochemically Localized Cholinesterases In Central And Peripheral Nervous Systems Of Two Insects: Periplaneta Americana L. And Acheta Domestica L, Clifford James Stratton

Theses and Dissertations

Cholinesterase (ChE) was histochemically localized by three methods in the sixth abdominal ganglion and the femur of crickets and cockroaches using light and electron microscopy. The light microscopy showed that ChE in insect femur could be readily demonstrated. The ultrastructural data showed enzyme activity: in ganglion - neural lamella, perineurium, axolemma, inside axons, along glia and at probable synapses; in peripheral nerves - in glial cells, sarcoplasmic reticulum, T-system, axolemma, sarcolemma and at neuromuscular junctions. All activity was inhibited with 10-4 eserine except in the neural lamella, suggesting cholinesterase at all of the above sites except the neural lamella where …

Go to article

The Effects Of Deficiencies Of Certain Mineral Nutrients On The Activity And Various Properties Of Ribulose-1,5-Diphosphate Carboxylase From Barley (Hordeum Vulgare L.), Philip Alan Harrison Aug 1973

The Effects Of Deficiencies Of Certain Mineral Nutrients On The Activity And Various Properties Of Ribulose-1,5-Diphosphate Carboxylase From Barley (Hordeum Vulgare L.), Philip Alan Harrison

Theses and Dissertations

Barley plants grown in Mg, Mn, Zn and Cu deficient media were analyzed for specific activity, total activity and amount of RuDPCase present. Percent dry weight, as well as chlorophyll and soluble protein content were determined. All deficiencies caused lower chlorophyll and RuDPCase concentrations than occurred in the control. Soluble protein content, however, was higher in all deficient plants than in the control, either on a dry or a fresh weight basis. The addition of 18 μM Mn^2+ increased the activity of Mg^2+ containing RuDPCase preparations as much as 133% above normal. The specific activity of RuDPCase from Mg, Mn, …

Go to article

The Effects Of Penicillin Upon The Fission Rate Of Dugesia Dorotocephala., John J. Fahsbender Apr 1973

The Effects Of Penicillin Upon The Fission Rate Of Dugesia Dorotocephala., John J. Fahsbender

Theses and Dissertations

Planaria (class Turbellaria) are the highest life forms which exhibit fission (Hyman, 1951). The laboratory planarian, Dugesia, lives in lakes, ponds, streams and springs, where it occupies bottom habitats. Fissioning is an asexual mode of reproduction. The fission plane is usually transverse, forming behind the pharynx, and separation appears to be dependent upon locomotion (Curtis, 1902). The posterior half of the worm adheres to the substratum while the anterior half continues to move forward until the worm snaps in two. Each half then regenerates the missing parts, forming two new smaller worms.

Go to article

The Effects Of Thiamin Deficiency And Thiamin Antagonists On Cardiac Function In The Rat, D. James B. Sutherland Apr 1973

The Effects Of Thiamin Deficiency And Thiamin Antagonists On Cardiac Function In The Rat, D. James B. Sutherland

Theses and Dissertations

A study was made to determine what biochemical changes were involved in the slowing of the rat heart rate during thiamin deprivation, pyrithiamin or oxythiamin treatment. The appearance of bradycardia during progressive thiamin deficiency was shown to be related to the reduction in myocardial enzymatic activity of pyruvate (PDH) and 2-ketoglutarate (2-KGDH) dehydrogenase, and not due to inanition alone since pair-fed control rats did not show bradycardia until the agonal stage. Bradycardia was not the result of reduced energy since CP, ATP, ADP, and AMP levels remained normal even though PDH and 2-KGDH activity dropped to 20% of normal by …

Go to article

The Determination Of Thiamin And Its Derivatives In Brain Tissue Of Control, Thiamin-Deficient, Oxythiamin- And Pyrithiamin-Treated Rats, David S. Murdock Apr 1973

The Determination Of Thiamin And Its Derivatives In Brain Tissue Of Control, Thiamin-Deficient, Oxythiamin- And Pyrithiamin-Treated Rats, David S. Murdock

Theses and Dissertations

The determination of total thiamin, free thiamin, thiamin di phosphate (TDP) plus thiamin triphosphate (TTP), and total α- hydroxyethylthiamin (HET) levels in rat brain in control, deficient, oxythiamin- (OTH) and pyrithiamin- (PTH) treated rats was accomplished. It was found that the TDP + TTP/thiamin ratio observed in the thiamin-deficient, OTH- and PTH-treated rats was constant and did not differ from the ratio observed in the control rat brains. The brain levels of TDP + TTP decreased to 39% and 12% of the control thiamin levels in deficient and PTH-treated rats respectively. The brain HET and TDP + TTP levels of …

Go to article

Distribution And Relationships Of Utah Brome Grasses In Western North America, Jerry B. Anderson Apr 1973

Distribution And Relationships Of Utah Brome Grasses In Western North America, Jerry B. Anderson

Theses and Dissertations

A considerable amount of study material has beccme available since the revision of the genus in 1900 by Shear, and the revision of the section Bromopsis in 1952 by Wagnon. A number of cytological studies have been done in recent years; and Wagnon's work pointed out the need for a comprehensive study of the entire genus. This study is a taxonomic revision of the Genus Bromus for the State of Utah, and contains illustrations and descriptions of the species; synonomy; distribution maps; and discussions of many of the important aspects of the economics, ecology, and historical treatment. I have recognized …

Go to article

|Ni.|Pa Calorimetric Study Of The Heat Of Ionization Of Water At 10 And 40°C, And,|Nii.|Pa Calorimetric Determination Of The Heat Of Reaction Of Tris (Hydroxymethyl) Aminomethane (Tham) With Hydrochloric Acid In Aqueous Solution At 10, 25, And 40°C, Griffith Lyn Kimball Apr 1973

|Ni.|Pa Calorimetric Study Of The Heat Of Ionization Of Water At 10 And 40°C, And,|Nii.|Pa Calorimetric Determination Of The Heat Of Reaction Of Tris (Hydroxymethyl) Aminomethane (Tham) With Hydrochloric Acid In Aqueous Solution At 10, 25, And 40°C, Griffith Lyn Kimball

Theses and Dissertations

The heat of neutralization, ΔH_-N, of perchloric acid with sodium hydroxide has been determined at 10 and 40° in a low ionic strength, μ, region using a nonisothermal, constant-temperature-environment solution calorimeter. Correction of the data to infinite dilution by extrapolation of a plot of ΔH_-N vs μ^0.5 gives values at zero ionic strength for the heat of ionization of water of 14.216 and 12.695 kcal/mole, respectively, at 10 and 40° . The data are correlated with those of earlier workers to give an equation allowing the calculation of the heat of ionization of water at zero ionic strength over the …

Go to article

Reactions Of N₂F₄ And Sf₆ With H₂ Induced By Co₂ Laser Pulses And By Electrical Discharge, John Leslie Lyman Apr 1973

Reactions Of N₂F₄ And Sf₆ With H₂ Induced By Co₂ Laser Pulses And By Electrical Discharge, John Leslie Lyman

Theses and Dissertations

A high power pulsed CO_2 laser was used to induce reactions in gas mixtures containing either N_2F_4 or SF_6. The rate of laser induced dissociation of N_2F_4 to NF_2 was as much as 1000 times faster than the thermal rate, and the rate law was of lower order than the thermal, bimolecular rate law. Explosion threshold and induction time data were obtained for butene stabilized mixtures of N_2F_4 and H_2. HF laser gain was observed during the first few microseconds of CO_2 laser pulse, but it was strongly quenched by the explosion. The laser driven reaction of SF_6 with H_2 …

Go to article

A Proposed Mechanism Of Action For In Vitro Excystation Of Two Species Of Coccidia, William Ronald Jolley Jan 1973

A Proposed Mechanism Of Action For In Vitro Excystation Of Two Species Of Coccidia, William Ronald Jolley

Theses and Dissertations

Excystation of coccidian oocysts is accomplished in vitro by altering wall permeability with CO2 and a reducing agent, then activating the enclosed sporozoites with a solution of trypsin and bile. Elucidation of the mechanism of action of the CO2-reducing agent treatment was the basic intent of this study. Oocysts of Eimeria stiedae (rabbit) and E. tenella (chicken) were tested for the presence of an excystation-associated enzyme by incubating sporulated oocysts in fluids extracted from variously treated oocysts, and by carbon-14 labelling; the effect of CO2 -reducing agent treatment on oocyst walls was investigated by titration with acid or base for …

Go to article

Mormonism In National Periodicals, 1961-1970, Dale P. Pelo Jan 1973

Mormonism In National Periodicals, 1961-1970, Dale P. Pelo

Theses and Dissertations

The purpose of this study was to determine the image of the Church of Jesus Christ of Latter-day Saints as reflected in articles appearing in general national periodicals of the United States during the decade 1961-1970. All articles listed in Readers Guide to Periodical Literature under the heading "Mormons and Mormonism" or related topics were searched. A rating system as devised by Dr. Richard O. Cowan in his work "Momonism in National Periodicals" was implemented.

Go to article

Publication Design For The Youth Of The Church Of Jesus Christ Of Latter-Day Saints, Peggy H. Proctor Jan 1973

Publication Design For The Youth Of The Church Of Jesus Christ Of Latter-Day Saints, Peggy H. Proctor

Theses and Dissertations

The problem of this study is to determine what elements are significant in creating a periodical for LDS youth that will be competitive with the attractions of other published materials currently available to youth without sacrificing LDS standards.

Go to article

First Prev Next Last