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Solid-Liquid Phase Equilibria Studies :|Bi. Several Charge Transfer Systems ; Ii. A Metallic System ; Iii. A Liquid Crystal, Dee Edward Oyler May 1971

Solid-Liquid Phase Equilibria Studies :|Bi. Several Charge Transfer Systems ; Ii. A Metallic System ; Iii. A Liquid Crystal, Dee Edward Oyler

Theses and Dissertations

Solid-liquid phase equilibria studies were used to investigate possible compound formation in solutions of (i) N,N-dimethylformamide (DMF) and (ii) N,N-dimethylacetamide (DMA) with a series of halogenated hydrocarbons that were selected to give a wide range of acceptor properties. Solid 1:1 intermolecular compounds were identified from solutions of (i) DMF and (ii) DMA with CCl_4, CBrCl_3, and C_6H_5CCl_3. The intermolecular compounds (DMF)_2•CCl_4 and (DMF)_2•CBrCl_3 were also found. The results suggest charge transfer from DMF or DMA to the chlorine atoms of the acceptor molecule as the process for compound formation. Thermal methods were used to determine with high precision the solid-liquid …

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The Physiological Vitality Of Scarlet Globemallow, Sphaeralcea Grossulariaefolia (Hook. And Arn.) Rydberg, Under Drought, Sam Finley Brewster May 1971

The Physiological Vitality Of Scarlet Globemallow, Sphaeralcea Grossulariaefolia (Hook. And Arn.) Rydberg, Under Drought, Sam Finley Brewster

Theses and Dissertations

Responses to drought were studied on greenhouse grown plants of Sphaeralcea grossulariaefolia (Hook. & Arn.) Rydberg. A pressure bomb was modified to measure leaf water potential (ψ). Leaf water potentials varied from -2 to -80 bars. Matric potential proved negligible. Low osmotic potentials indicated that turgor pressure remained positive. Photosynthesis decreased linearily with leaf water potential decreases. At about -32 bars ψ net photosynthesis became zero and around -45 bars ψ all photosynthesis ceased. Dark respiration decreased below about -18 bars proportionally to leaf water potential decrease until becoming minute at -60 bars. A very rapid rise in CO2 equilibrium …

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A Calorimetric Study Of Metal Ion Cyclic Polyether Interaction :|Bi. Cation Binding Properties Of Macrocyclic Polyethers In Aqueous Solution As A Function Of Temperature ; Ii. Effect Of Solvent Dielectric Constant On The Binding Properties Of Cyclic Polyethers For Na[Superscript +] And K[Superscript +], Dennis Pershing Nelson May 1971

A Calorimetric Study Of Metal Ion Cyclic Polyether Interaction :|Bi. Cation Binding Properties Of Macrocyclic Polyethers In Aqueous Solution As A Function Of Temperature ; Ii. Effect Of Solvent Dielectric Constant On The Binding Properties Of Cyclic Polyethers For Na[Superscript +] And K[Superscript +], Dennis Pershing Nelson

Theses and Dissertations

The complexation properties of the two isomers of the cyclic polyether dicyclohexyl-18-crown-6 are examined in aqueous solution for a series of metal ions at various reaction temperatures. The results are discussed in terms of size relationships and salvation characteristics of both polyether and metal ions. ΔCp° values are determined from the temperature dependence of the ΔH° values. A discussion of the errors involved in the determination of ΔH° from the temperature dependence of log K values is also included. Comparisons are made between the results of this study and those of a similar study by H. K. Frensdorff, E. I. …

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The Altitudinal Distribution Of Mammals Of The La Sal Mountains, Utah, Stephen Robert Bradley May 1971

The Altitudinal Distribution Of Mammals Of The La Sal Mountains, Utah, Stephen Robert Bradley

Theses and Dissertations

This study deals with the distribution of the mammals of the La Sal Mountains, Grand and San Juan Counties, Utah. The distribution of the mammals has been correlated with the distribution of the vegetation zones of the mountains which varies with the elevation. The study points out which of the various mammals are found in the various vegetational communities and how the distribution varies from community to community.

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The Hyobranchium And Throat Myology Of The Ambystomidae Of The United States, John E. Krogh May 1971

The Hyobranchium And Throat Myology Of The Ambystomidae Of The United States, John E. Krogh

Theses and Dissertations

The 16 species and subspecies of the Ambystomidae of the United States are placed into six groups according to their throat morphology as follows: The Dicamptodon group, the Rhyacotriton group, the A. annulatum-A. cingulatum group, the A. gracile-A. jeffersonianum-A. mabeei-A. macrodactylum-A. maculatum group, the A. talpoideum group, the A. opacum-A. texanum group, and the A. rosaceum-A. t. tigrinum-A. t. melanostictum-A. t. nebulosum group. Dicamptodon appears to be the most primitive group and Rhyacotriton the most specialized. Based on the morphology of the throat region it is suggested that A. rosaceum be placed in the tiger salamander group as a subspecies …

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Eutrophication Of Small Lakes, Lynn T. Kenison May 1971

Eutrophication Of Small Lakes, Lynn T. Kenison

Theses and Dissertations

An estimate was made to determine the amount of nitrate and phosphate entering Utah Lake in 1968. To make this estimate, the flow data for 1968 and the nitrate and phosphate concentrations for 1970 were used. This was done because of the lack of information. The results show that the total nitrate added to Utah Lake in 1968 was 7,638,000 pounds. The total phosphate added was 1,740,200 pounds. Of this amount, 12,4 per cent of the nitrate and 18.0 per cent of the phosphate was released from the lake through the Jordan River. The rest remained in the lake to …

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A Study In The Design And Development Of A Baseball Pitching Machine, Neal M. Lundwall May 1971

A Study In The Design And Development Of A Baseball Pitching Machine, Neal M. Lundwall

Theses and Dissertations

Throughout history man has had the need of services which require great skill or tremendous strength or delicate consistency on the part of those who perform. Much of the time he has turned to the machine to accomplish these requirements.

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Transition From Laminar To Turbulent Flow For A Two-Phase Mixture, Mohammed Sharief Qureshi May 1971

Transition From Laminar To Turbulent Flow For A Two-Phase Mixture, Mohammed Sharief Qureshi

Theses and Dissertations

A phase is simply one of the states of matter. Multiphase flow is the simultaneous flow of several phases. Two-phase flow is the simplest case of multiphase flow.

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The Roles Of Chlorine Azide In Chemical Lasers, Walter Wood Rice May 1971

The Roles Of Chlorine Azide In Chemical Lasers, Walter Wood Rice

Theses and Dissertations

ClN_3 was photolyzed in various gas mixtures to transform its chemical energy into laser radiation. Reaction mechanisms, energy distribution in reaction products, and relative reaction rates were deduced from the laser emission. Flash photolysis of ClN_3-H_2 mixtures produced HCl laser emission; however, due to a narrow range of operating conditions and many competing reactions, the laser output was less than that obtained from comparable Cl_2-H_2 mixtures. The rate constants for H + ClN_3 —> HCl* (v=n) + N_3 were determined to be 0.45 ± 0.05 of the corresponding rate constants for H + Cl_2 —> HCl* (v=n) + Cl. Chlorine …

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Solid-Liquid Phase Equilibria Of The Potassium-Rubidium And Rubidium-Cesium Alloy Systems, Elisabeth M. Delawarde May 1971

Solid-Liquid Phase Equilibria Of The Potassium-Rubidium And Rubidium-Cesium Alloy Systems, Elisabeth M. Delawarde

Theses and Dissertations

Thermal methods of high precision were used to determine the solid-liquid phase equilibria diagrams for the potassium-rubidium and the rubidium-cesium systems. Both form minima in the liquidus curves occurring at 307.00° K with 0.667 mole fraction rubidium in the potassium-rubidium system and 282.85° K with 0.530 mole fraction cesium in the rubidium-cesium system. In the potassium-rubidium system, the liquidus and solidus points are very close together, giving a very narrow temperature range for the two phase region. The freezing point minimum in the potassium-rubidium system occurs at 0.667 mole fraction rubidium, suggesting the possible formation of a KRb2 intermetallic compound.

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Bacterial Receptor Sites For Uptake Of Transforming Dna, Douglas Pierre Bingham May 1971

Bacterial Receptor Sites For Uptake Of Transforming Dna, Douglas Pierre Bingham

Theses and Dissertations

Bacterial transformation is defined as a mechanism of genetic exchange whereby a population of bacteria can obtain genetic informa-tion as a result of cellular uptake and integration of extracellular deoxyribonucleic acid released from other bacteria by natural or in-duced lysis. In order for a transformable strain of bacteria to take up DNA and to undergo transformation, the cells must be in a physiolog-ical state called competence. A cell is referred to as competent if it has the ability to bind extracellular DNA irreversibly and subsequently to integrate and express the DNA.

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A Computer Simulation Of A Partial Venous System Of A Human Lower Extremity, David C. Smith May 1971

A Computer Simulation Of A Partial Venous System Of A Human Lower Extremity, David C. Smith

Theses and Dissertations

The human body is truly a fascinating and complex creation of our Maker. Because of the complexity and variability, many of its workings were little known until recent years. Some of the more amazing facts of the circulatory system follow. If the individual blood vessels of a single adult, i.e., artery, arteriole capillary, venule and vein, were laid end to end, they would extend more than 60,000 miles. For the average adult, the heart beats 70 times per minute; for the well-conditioned athlete, 50-60 beats per minute; and for the extraordinary athlete, as few as 37 times per minute. The …

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Transient Convective Heat Transfer Coefficient For Injection Into Rigid Vessel, James Edward Steiger May 1971

Transient Convective Heat Transfer Coefficient For Injection Into Rigid Vessel, James Edward Steiger

Theses and Dissertations

The purpose of this study was to develop and demonstrate a method for experimentally determining the convective heat transfer in a rigid vessel while air was being injected. The heat transfer took place between the air in the pressurized vessel and the surrounding walls which were maintained at a temperature of 32 F. with a circulating ice water bath. The study considers the effects of injection geometry and injection flow rate on the heat transfer process. The problem of heat transfer after injection has been considered by Means (1), and was responsible for establishing this study. The experimental technique used …

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An Ecological Life History Of Tall Bluebell In Utah, Verl B. Matthews May 1971

An Ecological Life History Of Tall Bluebell In Utah, Verl B. Matthews

Theses and Dissertations

The ecological life history of tall bluebell, Mertensia arizonica Green var. leonardi (Rydb.) Johnston (M. leonardi Rydb.), was investigated during 1963 and 1964. Summer field studies were conducted on the Mud Creek Sleep Allotment of the Uinta National Forest, Wasatch County, Utah. Laboratory and herbarium studies were carried out at Brigham Young University. Specific objectives were to investigate seed germination, seedling development, root system, phenology, palatability, and describe the physical site factors where bluebell occurred. A study of this species was necessary because much of the herbage produced in certain areas of aspen range is not utilized. This condition occurs …

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Conduction Error In Thermocouples Embedded In Low Conductivity Material, Tumkur G. Nagaraju May 1971

Conduction Error In Thermocouples Embedded In Low Conductivity Material, Tumkur G. Nagaraju

Theses and Dissertations

Thermocouples are generally used as devices to determine the internal temperature of any material. The purpose of the temperature measuring device is to measure the temperature which would exist at some known location if the device were not present. The thermocouples are embedded in the material in order to study the temperature-time history of the point of location. The presence of the thermocouple induces error in the temperature measured. This error becomes significant if heat is conducted into or away from the point of measurement by the sensor itself, or if the sensor insulates the point. This would result from …

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Characterization Of A Soluble Form Of Structural Protein From Neurospora Crassa, Clarence Denis Perterson Apr 1971

Characterization Of A Soluble Form Of Structural Protein From Neurospora Crassa, Clarence Denis Perterson

Theses and Dissertations

The study of membrane assembly has, until now, consisted of fractionating a membrane into its components or of assembling model membranes from non-physiological components. A native precursor to membranes was obtained as a quasi-crystalline material. It was the purpose of this work to develop the appropriate techniques for characterizing the material as well as to carry out the characterization. The results of the characterization indicate the quasi-crystalline material contains a single protein, structural protein. This protein is in two forms which may reflect two sequential steps in membrane assembly. One form is solubilized in 2-chloroethanol and isolated by gel filtration. …

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Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal Apr 1971

Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal

Brigham Young University Science Bulletin, Biological Series

This revision discusses seven closely related species of Eriogonum (Polygonaceae) found in the western United States of North America. One of the two major species, E. microthecum, is composed of nine varieties which range over a wide area of the Far West. The other major species, E. effusum, is found over a more restrictive geographical range mainly east of the Continental Divide. The remaining five species are primarily restricted to the Colorado-Green river drainage basin of Utah, Colorado, New Mexico, and northern Arizona. Together these entities form the core of a group of plants known as Section Corymbosa. …

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Mormon Bibliography: 1970, Chad J. Flake Apr 1971

Mormon Bibliography: 1970, Chad J. Flake

BYU Studies

No abstract provided.

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Grief, Martha Haskins Hume Apr 1971

Grief, Martha Haskins Hume

BYU Studies

No abstract provided.

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The Gentle Blasphemer: Mark Twain, Holy Scripture, And The Book Of Mormon, Richard H. Cracroft Apr 1971

The Gentle Blasphemer: Mark Twain, Holy Scripture, And The Book Of Mormon, Richard H. Cracroft

BYU Studies

No abstract provided.

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Introductory Pages, Byu Studies Apr 1971

Introductory Pages, Byu Studies

BYU Studies

No abstract provided.

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End Matter, Vol. 31 No. 1 Mar 1971

End Matter, Vol. 31 No. 1

Great Basin Naturalist

No abstract provided.

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Lamb-Mössbauer Factor Of Sodium Ferrocyanide, Daniel L. Decker, L. E. Lortz Feb 1971

Lamb-Mössbauer Factor Of Sodium Ferrocyanide, Daniel L. Decker, L. E. Lortz

Faculty Publications

Using a set of commercially prepared sodium ferrocyanide absorbers enriched to 91.2% Fe57 the Lamb-Mössbauer factor was measured to be 0.28±0.03. The thickness of Fe57 for these absorbers was measured using x-ray absorption techniques and was found to be considerably smaller than that advertised by the manufacturer even after correcting for the size of the ferrocyanide particles in the absorbers.

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Introductory Pages, Byu Studies Jan 1971

Introductory Pages, Byu Studies

BYU Studies

No abstract provided.

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History Of The South African Mission Of The Church Of Jesus Christ Of Latter-Day Saints, 1853-1970, Farrell Ray Monson Jan 1971

History Of The South African Mission Of The Church Of Jesus Christ Of Latter-Day Saints, 1853-1970, Farrell Ray Monson

Theses and Dissertations

The history of the South African Mission of The Church of Jesus Christ of Latter-day Saints (1853-1970) describes the progress of the Church in South Africa from its inception until the present time. Missionary proselyting activities in the land are traced, and the major historical developments of the mission are discussed.

In 1853 three missionaries began Mormon proselyting activities in the Cape Province and within six months they had baptized forty-five persons, established two branches, and organized the first conference of the Church.

Despite mob violence and opposition from the clergy, civil authorities, and the press, the Church continued to …

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A Study Of Rock Music To Determine Its Declared Position Relative To Unchastity, The Use Of Drugs And The Departure From Traditional Concepts Of Family And Religion, E. Lynn Balmforth Jan 1971

A Study Of Rock Music To Determine Its Declared Position Relative To Unchastity, The Use Of Drugs And The Departure From Traditional Concepts Of Family And Religion, E. Lynn Balmforth

Theses and Dissertations

One of the social phenomena of our time (1960s) has been the popularization of a kind of music among the youth known as rock 'n' roll. It was the intent of this study to determine if the medium of rock did, in fact, maintain a posture of promulgating unchastity, the use of drugs and departure from traditional concepts of family and religion.

Supported by statements from leading rock musicians it was found that the big beat had a cultural root in the Negroid race. Coupling the big beat gospel rhythms of the south with the white country and western music, …

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An Analysis Of The Role Of Temples In The Establishment Of Zion, C. Max Caldwell Jan 1971

An Analysis Of The Role Of Temples In The Establishment Of Zion, C. Max Caldwell

Theses and Dissertations

The establishment of Zion has been a goal of interest to every dispensation. The building of temples and participation in temple ordinances has likewise been a practice of many generations throughout history. In the present dispensation, Joseph Smith declared the need to construct temples in connection with the building of a Latter-day Zion.

The purpose of this study has been to discover a correlation between temple activity and the development of the Church membership in their preparation for the establishment of Zion. It has been concluded that the temples do perform a very significant role in the development of the …

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A Comparative Study Of The Teaching Methods Of The Lds And Non-Lds Religious Educational Movements Among The Indians In Southeastern Utah Since 1943, James A. Carver Jan 1971

A Comparative Study Of The Teaching Methods Of The Lds And Non-Lds Religious Educational Movements Among The Indians In Southeastern Utah Since 1943, James A. Carver

Theses and Dissertations

It was the purpose of this study (1) to analyze the teaching methods of the L.D.S. and non-L.D.S. religious educational movements in Southeastern Utah among the Indians since 1943; and (2) to determine the similarities and differences between the teaching methods of these religious educational movements.

It was found that (1) the teaching methods used among the Indians in the earlier period of religious instruction were more typical of the culture and traditions of the Indian people than the methods used today, (2) the teaching methods most frequently used were: instructional singing, workbooks, catechization, lecture, storytelling, testimony and spiritual experiences …

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History Of Utah's Salt Industry 1847-1970, John L. Clark Jan 1971

History Of Utah's Salt Industry 1847-1970, John L. Clark

Theses and Dissertations

Utah salt makers have extracted salt from three sources, the principal of these being brine from Great Salt Lake. Other sources are saline beds in Great Salt Lake Desert and subterranean halite formations in central Utah.

This study traces the development of methods used to recover and refine salt by the industry, in general, and by specific companies. It provides brief, historical sketches of the major corporations and the economic, legal, and environmental factors affecting their growth.

Utah produces about 1 per cent of the nation's salt, exporting over half of it from the state. The major factors limiting the …

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The Design And Implementation Of A Missionary Language Course In Aymara, Joseph Orville Davidson Jan 1971

The Design And Implementation Of A Missionary Language Course In Aymara, Joseph Orville Davidson

Theses and Dissertations

This thesis is a set of materials in colloquial Aymara, an indigenous language spoken by nearly one million people on the "altiplano" of Bolivia and southeastern Peru. It is designed for use by missionaries of the Church of Jesus Christ of Latter-day Saints assigned to the Bolivia Mission. It was prepared on the assumption that missionaries will have completed approximately three weeks of intensive Spanish language training prior to beginning this course.

Each lesson has a pre-class module which previews the vocabulary, grammar, and memorization assignments found in the in-class module, and increases the student's listening comprehension. The in-class module …

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