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 21241 - 21270 of 21333

Full-Text Articles in Entire DC Network

Oxidation Of Molybdenite With The Aid Of Microorganisms, Ralph Anderson Aug 1956

Oxidation Of Molybdenite With The Aid Of Microorganisms, Ralph Anderson

Theses and Dissertations

This work represents a study on the biological oxidation of molybdenite, MoS2. The principal objective of this study was to investigate the possibility of the biological oxidation of molybdenite, to determine the physical and chemical conditions under which the oxidative process occurs, and to develop a strain of bacteria or alter the activity of the microorganisms by acclimatization to increase their activity on sulfide minerals, in particular molybdenite. Minerals used in this study were pyrite (FeS2), chalcopyrite (CuFeS2), molybdenite concentrate, and molybdenite ore. The microorganisms used in this investigation were autotrophic bacteria obtained from the leaching streams of Bingham Canyon, …


The Instability Constant Of The Cobaltous Citrate Complex Ion Using Cobalt-⁶⁰ As A Tracer, Lee T. Cox Aug 1956

The Instability Constant Of The Cobaltous Citrate Complex Ion Using Cobalt-⁶⁰ As A Tracer, Lee T. Cox

Theses and Dissertations

The instability constant of a substance shows the tendency of a substance to dissociate into simple ions. The stability of the substance can be related to stabilities of other substances through the instability constant. Schubert gives a method for the determination of the instability constant which involves measurements of the adsorption of a radiotracer cation on a cation exchange resin. Two different types of resin were employed in this research. It was found that with a resin containing carboxylic acid exchange groups the adsorption of the cobaltous ion changed rapidly with pH but with a resin containing nuclear sulfonic acid …


A Study Of The Hydra Of Salem Pond, Mary Elizabeth Dumas Jul 1956

A Study Of The Hydra Of Salem Pond, Mary Elizabeth Dumas

Theses and Dissertations

The site of investigation for this work was Salem Pond, Salem (formerly known a.s Pond Town), Utah. It was settled in 1851 by David Crockett and David Fairbanks. Colonization began in 1856 when a fort of adobe and lumber houses was built near the pond, and later, several industries located there, benefited by the water wheels constructed by the pioneers (Huf4 l947).


A Life History Study Of The Spurred Towhee Pipilo Erythropthalmus Montanus, Travis G. Haws Jul 1956

A Life History Study Of The Spurred Towhee Pipilo Erythropthalmus Montanus, Travis G. Haws

Theses and Dissertations

This paper deals with the life history and distribution of the Spurred Towhee (Pipilo erythropthalmus moutanus Swarth). Research was begun in April, 1955, and terminted in June, 1956. The preferred habitat of this bird is the mountain slopes, canyons. and streamsides covered with a shrubby type of vegetation, usually between 5,000 and 8,000 feet in elevation. Distribution of the Spurred Towhee is throughout the central Rocky Mountain region in the states of Wyoming, Utah, Colorado, Arizona, western half of New Mexico, and into northern Mexico. During the winter these birds are found concentrated in the lower valleys along the streams …


A Correlation Of The Catalytic Activity Of Various Mixtures Of Rhenium And Molybdenum Sulfides In Liquid-Phase Hydrogenation Of Certain Reducible Organic Groups, Li-Chen Hsu Jun 1956

A Correlation Of The Catalytic Activity Of Various Mixtures Of Rhenium And Molybdenum Sulfides In Liquid-Phase Hydrogenation Of Certain Reducible Organic Groups, Li-Chen Hsu

Theses and Dissertations

The promoter action of mixtures of catalysts has been reported in literature to be valuable in industries. Whether mixtures of rhenium and molybdenum sulfides would have promoter actions in the hydrogenations of certain reducible organic groups was the main object of this research. Mixtures of rhenium and molybdenum sulfides of various compositions were prepared by three different methods, i.e., (a) by saturating perrhenate and molybdate with hydrogen sulfide in hydrochloric acid solutions, (b) in ammonium hydroxide solutions followed by acidification, and (c) by treating perrhenate and molybdate with thiosulfate in dilute sulfuric acids followed by extraction with toluene to remove …


Photo-Oxidations Sensitized By Physiologically Important Substances, Ernel D. Ihnen Jun 1956

Photo-Oxidations Sensitized By Physiologically Important Substances, Ernel D. Ihnen

Theses and Dissertations

A study of the photo-oxidation of the 2,6-dichlorophenol indophenol-ascorbic couple was undertaken with a view to investigating the postulated mechanism of oxidation by a component of the oxygen evolving sequence operative in photosynthesis. A spectrophotometric method for the measurement of the progress of photo-oxidation was developed. Temperature and pH dependence were determined and the effect of various common inhibitors and physiological substances tested. None of the common Hill reaction inhibitors were effective in the ascorbic acid photo-oxidation in the system used. KCN and catalase as well as a few other high molecular weight proteins were able to inhibit dark auto-oxidation …


Calorimetric Heats Of Mixing Of Some Nonelectrolytic Binary And Ternary Solutions, James Bevan Ott May 1956

Calorimetric Heats Of Mixing Of Some Nonelectrolytic Binary And Ternary Solutions, James Bevan Ott

Theses and Dissertations

The heat of mixing of nonelectrolytic liquids is important in predicting the type of molecular interactions which exist in solutions of nonelectrolyted. The problem was to construct a calorimeter in which these heats of mixing could be measured accurately. Once constructed, the calorimeter was used to measure the heats of mixing of some binary and a ternary solutions. The systems chosen for study were the three liquid pairs formed between benzane, carbon tetrachloride, and cyclohexane, and the ternary mixture of the three. The results of the experimentation are summarized by the following equations. (1) H_12^M = X_1x_2 [103.2 + 13.1(x_1 …


Thomas Bullock, Early Mormon Pioneer, C. Ward Despain Jan 1956

Thomas Bullock, Early Mormon Pioneer, C. Ward Despain

Theses and Dissertations

The purpose of this study was to write a biography of Thomas Bullock and discover his possible contributions to religious and profane history.


Thomas B. Marsh: Physician To The Church, Walter C. Lichfield Jan 1956

Thomas B. Marsh: Physician To The Church, Walter C. Lichfield

Theses and Dissertations

Thomas B. Marsh was president of the first quorum of Twelve Apostles of this last dispensation of the Gospel.

He came into the Church after having been lead west from Massachusetts, to the Prophet at Palmyra by the Spirit, having previously separated himself from all the then existing creeds as had many other early stalwarts.


An Investigation Of The Contribution Of Latter-Day Revelation To An Understanding Of The Atonement Of Christ, Eldon R. Taylor Jan 1956

An Investigation Of The Contribution Of Latter-Day Revelation To An Understanding Of The Atonement Of Christ, Eldon R. Taylor

Theses and Dissertations

The purpose of this study was to determine the contributions of latter-day revelation to an understanding of the atonement of Christ in addition to that which is taught in the Bible.
It is generally acknowledged among Christians that the primary purpose of Christ's mission was to redeem mankind. The doctrine of the atonement contains the foundation principles of Chirstian faith and, yet the creeds of the several churches are in serious disagreement on many vital principles involved.
If the widely differing views are due to insufficient information in the bible, the question naturally follows - how does modern revelation clarify …


The Mormon Reformation Of 1856-1857, Howard Clair Searle Jan 1956

The Mormon Reformation Of 1856-1857, Howard Clair Searle

Theses and Dissertations

This study was made for the purpose of determining the causes, course, nature, and effects of the "Great Reformation" that spread quickly throughout the Church of Jesus Christ of Latter-day Saints during the latter part of 1856 and the first months of 1857.


Mammals Of The Lynndyl, Utah, Sand Dune Area : A Population Problem, Hugh J. Phillips Aug 1955

Mammals Of The Lynndyl, Utah, Sand Dune Area : A Population Problem, Hugh J. Phillips

Theses and Dissertations

The purpose of this study was to determine the kinds, population, distribution, and general habits of the mammals of the Lynndyl sand dune area. Only one article concerning the dunes was found, but several have been written on other dunes; however, none was found concerning mammals. Two quantitative studies, plot and transect trappings, were made and general observations were taken within the study area. Three types of plots; Russian thistle, juniper, and baren moving dunes; were trapped and revealed the following species: Dipodomys ordii, Peromyscus maniculatus, Reithrodontomys megalotis, Onychomys leucogaster, and Neotoma lepida. The most numerous animal in all plots …


Some Aspects Of The Chemistry Of The Hydroquinoxalines Unsubstituted On The Nitrogen Atoms, Evan L. Allred Aug 1955

Some Aspects Of The Chemistry Of The Hydroquinoxalines Unsubstituted On The Nitrogen Atoms, Evan L. Allred

Theses and Dissertations

A search of the literature revealed that almost nothing is known concerning the class of compounds known as decahydroquinoxalines. Since this posed a problem involving a search for a systematic synthetic method of general application as well as a method for establishing the characteristic class and individual properties, a research project under the guidance of Dr. H. Smith Broadbent was initiated. Of particular interest aside from matters of purely chemical interest was the recognition that the hydroquinoxalines possess obvious structural similarities with atropine and other well-known drugs which have valuable application as hypotensive agents, analgesics, spasmolytic agents, parasympathetic depressants, antihistaminics, …


Acidic Properties Of Clay Minerals And Alumina, Kenneth H. Anderson Aug 1955

Acidic Properties Of Clay Minerals And Alumina, Kenneth H. Anderson

Theses and Dissertations

Acidic properties of dialyzed alumina and representative clay minerals were studied by performing titrations with various bases. For the first group of experiments the titrations were made in a water system using KOH and NaOH. For this study in a water system the experimental data includes individual cationic activities as well as pH values. Adsorption of the cations was adequately described over a pH range of 5-11 by the equation 1-θ/θ ⋅ aNa+ ⋅ aOH- = 1/K'3 [aOH- + KW/K'2 + 1/K'1], in which θ represents the fraction of the total sites that have reacted. Thermodynamic constants K'3 and K0= …


The Effect Of Ferrous And Ferric Ions On The Conversion Of Malate To Pyruvate By A Cell Free Extract Of Pigeon Liver, Keith Erwin Richardson Jul 1955

The Effect Of Ferrous And Ferric Ions On The Conversion Of Malate To Pyruvate By A Cell Free Extract Of Pigeon Liver, Keith Erwin Richardson

Theses and Dissertations

Recent investigations on the crude pigeon liver extracts have shown the presence of an enzyme which catalyzes the oxidative decarboxylation of malate to pyruvate and carbon dioxide. The name malic enzyme has been given to this enzyme to distinguish it from malic dehydrogenase. Under aerobic conditions the addition of ferrous sulfate resulted in inhibition of the action of malic enzyme. Subsequent investigation showed that the inhibition obaerved was not due to ferrous ions, but due to ferric ions which were contaminating the ferrous sulfate. It was also shown that under aerobic conditions ferrous ions were rapidly oxidized to ferric ions. …


Colorimetric Determination Of Rhenium In Ores, Clair Winston Rogers Jul 1955

Colorimetric Determination Of Rhenium In Ores, Clair Winston Rogers

Theses and Dissertations

The problem of colorimetrically determining rhenium in the presence of molybdenum, copper, iron, sulphur, and rare earth elements with the use of dimethylglyoxime as the complexing compound was accomplished by the method reported here-in. The interfering elements were eliminated either as gaseous oxides and sulfides or were precipitated from a highly basic solution by means of a strong alkaline fusion of equal weights of sodium hydroxide and sodium peroxide, and the ore sample containing rhenium. The fusion product was dissolved in water, the solution boiled with a slight excess of sodium peroxide, and the hydroxide of all the interfering ions …


An Ecological And Distributional Study Of Small Mammals Of Cedar Valley, Utah County, Utah, Loraine Woodbury Jun 1955

An Ecological And Distributional Study Of Small Mammals Of Cedar Valley, Utah County, Utah, Loraine Woodbury

Theses and Dissertations

This paper deals with the ecology and distribution of small mammals in the following plant communities of Cedar Valley, Utah: juniper, greasewood, grass-rabbitbrush, and shadscale. Study periods were in August 1950 and 1951, October 1951, and April 1952 with each community studied 1,440 trap-nights. A combination of the Calhoun ''B" and transect method was employed; plant species and densities were taken and soil samples were checked for moisture content, total soluble salts and mechanical analysis. In the communities studied Dipodomys ordii utahensis (Merriam) is found in greatest abundance on sandy soil and Perognathus parvus olivaceus (Merriam) is found in greater …


Thermodynamic Properties Of Water Adsorbed On Kaolinite, S. John Bennett Jun 1955

Thermodynamic Properties Of Water Adsorbed On Kaolinite, S. John Bennett

Theses and Dissertations

The object of the work presented in this thesis was to obtain quantitative values of the thermodynamic changes in water upon adsorption by kaolinite. Two methode were used. The first was a determination of the differential heat content and entropy of adsorption. The second method included a thermodynamic evaluation of the B.E.T. "c" constant expressed in terms of the Gibbs standard free energy of adsorption. The experimental data gave satisfactory results in determining the differential and standard thermodynamic functions or free energy, entropy, and heat content of adsorption. The adsorption of water on kaolinite appears to be a van der …


A Study Of The Problem Of A Personal Devil And Its Relationship To Latter-Day Saint Beliefs, Lamar E. Garrard May 1955

A Study Of The Problem Of A Personal Devil And Its Relationship To Latter-Day Saint Beliefs, Lamar E. Garrard

Theses and Dissertations

The problem of the existence of a devil is important, since it relates to other beliefs which a person or his religion may uphold. The orthodox Christian concepts of the divinity of Christ, the Fall of man, the Atonement, and the inspiration of the Bible are altered when a belief in Satan is discarded.

The prophets of the Church of Jesus Christ of Latter-day Saints (Mormon) take a very definite stand concerning the existence of Satan. They declare that the devil and his angels exist and that they tempt and try to deceive men. L.D.S. scriptures, given through modern revelation, …


A Study Of The Nature Of And The Significance Of The Changes In The Revelations As Found In A Comparison Of The Book Of Commandments And Subsequent Editions Of The Doctrine And Covenants, Melvin Joseph Petersen Jan 1955

A Study Of The Nature Of And The Significance Of The Changes In The Revelations As Found In A Comparison Of The Book Of Commandments And Subsequent Editions Of The Doctrine And Covenants, Melvin Joseph Petersen

Theses and Dissertations

An observation of literature extant regarding the revelations accepted by the Church of Jesus Christ of Latter-day Saints as being divinely given through Joseph Smith, discloses that the field has not been probed very thoroughly. Many are the sermons and discourses preached from the pulpit by exegetes of Mormonism vindicating the book of Doctrine and Covenants as being authentic. Few, however, have made a study of the history, origin, and development of this book.

From outside of the church criticisms have arisen concerning certain changes, additions, and omissions made in the revelations as first written by Joseph Smith. When confronted …


Recent Jewish Movement In Israel In Light Of The Teachings Of The Latter-Day Saint Prophets, Dale Thomas Tingey Jan 1955

Recent Jewish Movement In Israel In Light Of The Teachings Of The Latter-Day Saint Prophets, Dale Thomas Tingey

Theses and Dissertations

The purpose of this study is to analyze the recent Jewish movements in Israel in light of the teachings of the latter-day prophets and to determine the progress Judah is making toward its promised destiny.


Abraham Owen Smoot: Pioneer Mormon Leader, C. Elliott Berlin Jan 1955

Abraham Owen Smoot: Pioneer Mormon Leader, C. Elliott Berlin

Theses and Dissertations

The origin of the Smoot family is traced to thirteenth century Holland when a vassal of the Count of Holland chose the name Smout. The family, after conspicuous service, entered the ranks of the nobility and gained a coat of arms. William Smoot contracted to perform fifty days service in the Colony of Virginia in 1633. Impressed by the new land, he settled in America.

His decendent and the subject of this biography was born on February 17, 1815, in Owenton Franklin County, Kentucky, to George Smoot and Ann Rowlett who named their infant son Abraham Owen Smoot after an …


Evaluations Of Two Proposed Mechanisms Of Cation Adsorption By Silicate Minerals, Norman D. Larsen Aug 1954

Evaluations Of Two Proposed Mechanisms Of Cation Adsorption By Silicate Minerals, Norman D. Larsen

Theses and Dissertations

Previous work done at the Brigham Young University by Andelin^1, Roberts^2, and Olsen^3, has established the mechanism by which xanthate collectors are adsorbed on molybdenite ores to produce the hydrophobic surfaces necessary for flotation. This thesis is an attempt to better understand the mechanism by which the silicate minerals, which are found in conjunction with the ores, become hydrophyllic and as a result are not floated when in contact with air bubbles. It has been previously established that silicate minerals do adsorb cations on their surfaces^4. The present study has been undertaken to more fully understand the mechanism by which …


The Succession Of Vegetation On A Southern Utah Sand Dune, Elias S. Castle Aug 1954

The Succession Of Vegetation On A Southern Utah Sand Dune, Elias S. Castle

Theses and Dissertations

The sand dunes lying ten miles northwest of Kanab in Kane County, Utah, support a sparse plant cover with four species dominating the vegetation: Psoralea stenostachys, Sophora stenophylla, Oryzopsis hymenoides, and Wyethia scabra var. attenuata. Of these Psoralea and Wyethia are endemic to the dunes or to a limited area which includes the dunes. The pineer species gain a start in the valleys between dunes and occupy the area only until sand covers them or until sand is blown away from their roots. Stabilization of the soils is not permanently in the interdune valleys and the dunes continue to wander. …


The Chromatographic Purification Of Human Red Blood Cell Acetylcholinesterase, Richard P. Dunkley May 1954

The Chromatographic Purification Of Human Red Blood Cell Acetylcholinesterase, Richard P. Dunkley

Theses and Dissertations

A process of column chromatography of human erythrocyte acetylcholinesterase, using a cationic exchange resin, was investigated as a possible method for the primary partial purification of the enzyme on a large scale. The investigation was based, first; on a detailed study of the enzymatic stability to variation in hydrogen-ion and salt concentrations for periods of time extending to forty eight hours and, second; on an investigation of the degree of adsorption by the resin of the enzyme at various pH values within the pH range of enzyme stability. A method for the analysis of the enzyme activity of large numbers …


Administrative History Of The Nauvoo Legion In Utah, Ralph Hansen Jan 1954

Administrative History Of The Nauvoo Legion In Utah, Ralph Hansen

Theses and Dissertations

The Nauvoo Legion takes its name from the city in Illinois which was the center of the Church of Jesus Christ of Latter-day Saints in the early 1840's, when the Mormon militia was organized. When the Mormons were driven to the Rocky Mountains they revived the militia, in 1849, under its original title.

The legislative organization of the Utah Nauvoo Legion was carried out through enactments of three lawmaking bodies, the High Council of the Church of Jesus Christ of Latter-day Saints, the Legislature of the State of Deseret, and the Legislature of the Territory of Utah.


Model For A Proposed Statue Of Joseph Smith Suitable For Placement Near The Entrance Of The Joseph Smith Building, Brigham Young University, Provo, Utah, Evelyn Horrocks Meiners Jan 1954

Model For A Proposed Statue Of Joseph Smith Suitable For Placement Near The Entrance Of The Joseph Smith Building, Brigham Young University, Provo, Utah, Evelyn Horrocks Meiners

Theses and Dissertations

The purpose of this study is to design a model for a proposed statue of Joseph Smith which would be appropriate for placement near the main entrance of the Joseph Smith Building, Brigham Young University, Provo, Utah. This statue should depict the great historical and spiritual significance of Joseph Smith, be harmonious with the architecture and landscaping, and conform to the principles of good design.


A History Of Wasatch County, 1859-1899, Leslie Shupe Raty Jan 1954

A History Of Wasatch County, 1859-1899, Leslie Shupe Raty

Theses and Dissertations

This is an attempt to tell the story of the foundation and pioneer development of Wasatch County. The writer has tried to trace those factors in the pioneering venture which have made important contributions to present-day life in the county. This is also a story of the pioneers who settled here, a story of how they individually and collectively met the challenge of the frontier. But in addition to this, the effort has been made to picture one part of a phase in general Utah history, a phase which followed the original settlement, a phase in which an effort was …


Mormon Education In Theory And Practice 1830-1844, Virgil B. Smith Jan 1954

Mormon Education In Theory And Practice 1830-1844, Virgil B. Smith

Theses and Dissertations

The problem of this study was to discover and classify "Mormon" ideas current between 1830 and 1844 relating to educational theory and practice, and to compare the theory and practice. The hypothesis is that there were discrepancies in the theory and the practice.


The History Of The Drama In Corinne And Brigham City, Utah, 1855-1905, Rue Corbett Johnson Jan 1954

The History Of The Drama In Corinne And Brigham City, Utah, 1855-1905, Rue Corbett Johnson

Theses and Dissertations

It is hoped that through the inclusion of the history of the drama in Corinne, Utah, some interesting contrasts can be shown. Such contrasts are heightened when it Is realized that geographically the two towns are very close and that unlike Brigham City, and other Utah towns, Corinne was non-Mormon. During its zenith it undoubtedly reflected the typical frontier town characteristics more than did the Mormon town nearby. This fact provides opportunity for comparison of two societies as reflected in their dramatic activities. This comparison should assist in evaluating the history and contributions of Mormon dramatic activity by helping to …