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Articles 7681 - 7710 of 8047
Full-Text Articles in Entire DC Network
Publication Trends In The People's Republic Of China, Karl Lo
Publication Trends In The People's Republic Of China, Karl Lo
Journal of East Asian Libraries
This paper was presented at a panel meeting entitled, "Libraries and Publishing in the People's Republic of China," on the program of the 31st Annual Meeting of the Association for Asian Studies, held in Los Angeles, March 30 - April 1, 1979.
Meaning In The Numberline, John S. Robertson
Meaning In The Numberline, John S. Robertson
Deseret Language and Linguistic Society Symposium
No abstract provided.
Structure And Energy: Toward A Civilization-Analytic Perspective, Vytautus Kavolls
Structure And Energy: Toward A Civilization-Analytic Perspective, Vytautus Kavolls
Comparative Civilizations Review
No abstract provided.
A Multi-Valued Attitudinal Study Of Obscenity And Freedom Of Expression, Allen W. Palmer
A Multi-Valued Attitudinal Study Of Obscenity And Freedom Of Expression, Allen W. Palmer
Theses and Dissertations
This study was designed to examine whether religiosity is a determining factor in public reaction to obscenity issues.
A sample population of 452 residents of the community of Idaho Falls, Idaho was selected using a technique based on a list of random numbers in October, 1979. Path analysis, Chi-square analysis and Spearman's correlation were used to measure the results.
The study found there is a significant relationship between religiosity and behavior intention toward obscenity issues. The affective component of the attitude organization functions somewhat as a mediating variable. There were also findings that members of the Church of Jesus Christ …
Chemical Vapor Deposited Amorphous Silicon For Use In Photothermal Conversion, David D. Allred, D. C. Booth, M. Janai, G. Weiser, B. O. Seraphin
Chemical Vapor Deposited Amorphous Silicon For Use In Photothermal Conversion, David D. Allred, D. C. Booth, M. Janai, G. Weiser, B. O. Seraphin
Faculty Publications
Efficient photothermal conversion requires surfaces of high solar absorptance and low thermal emittance. This can be accomplished by the tandem action of a good infrared reflector overlaid by a film of sufficient solar absorptance that is transparent in the infrared. Crystalline silicon is a suitable candidate for the absorber layer. Its indirect band gap, however, results in a shallow absorption edge that extends to far into the visible. In contrast, the absorption edge of amorphous silicon is steeper and located farther into the infrared, resulting in a larger solar absorptance. We report on the fabrication of amorphous silicon absorbers by …
Chemical Vapor Deposited Molybdenum Films For Use In Photothermal Conversion, David D. Allred, G. E. Carver, B. O. Seraphin
Chemical Vapor Deposited Molybdenum Films For Use In Photothermal Conversion, David D. Allred, G. E. Carver, B. O. Seraphin
Faculty Publications
High infrared reflectance, coupled with higher solar absorptance, is required for efficient photothermal conversion. Converters can be fabricated by depositing an absorber on a highly reflecting metal. The absorber functions in the visible, yet becomes transparent in the near infrared, allowing the metal to suppress the thermal emittance. Economic considerations demand the use of thin films, rather than bulk materials. The thin film reflector must be capable of withstanding high temperatures of operation. Compatibility of the reflector with the substrate below, and the absorber above, is required for long-time service. Highly reflective silver films suffer reflectance losses by agglomeration, and …
An Emulsion Dye Laser, Kenneth Lee Matheson, James M. Thorne
An Emulsion Dye Laser, Kenneth Lee Matheson, James M. Thorne
Faculty Publications
A laser dye which is insoluble in water has been dissolved in hexane and emulsified in a water matrix. When pumped with a nitrogen laser, this mixture was observed to lase. The emulsion is superior to a simple hexane solution because the excellent thermo-optical properties of the water matrix help prevent refractive-index gradients from degrading laser performance. This is a useful characteristic for flash-pumped dye lasers, laser-pumped dye lasers, and liquid filters. Another type of solvent system, a critical solution, is also discussed. For certain dyes, a critical solution has even better thermo-optical properties because of its ability to absorb …
An Economic Analysis Of The United Order, L. Dwight Israelsen
An Economic Analysis Of The United Order, L. Dwight Israelsen
BYU Studies
No abstract provided.
Does Family Size Affect Academic Achievement?, Phillip R. Kunz, Evan T. Peterson, Gail W. Peterson
Does Family Size Affect Academic Achievement?, Phillip R. Kunz, Evan T. Peterson, Gail W. Peterson
BYU Studies
No abstract provided.
Organizations And Institutions, Sungha Kim, Edward Friedman, Chester C. I. Wang
Organizations And Institutions, Sungha Kim, Edward Friedman, Chester C. I. Wang
Journal of East Asian Libraries
No abstract provided.
An Introduction To Communication Theory: A Description Of The Teaching Act, Mary Ann Christison
An Introduction To Communication Theory: A Description Of The Teaching Act, Mary Ann Christison
Deseret Language and Linguistic Society Symposium
No abstract provided.
Some Proposals For Junction Grammar, Mike Mcomber
Some Proposals For Junction Grammar, Mike Mcomber
Deseret Language and Linguistic Society Symposium
No abstract provided.
Translation Sciences Institute Slide Presentation Script, Roydon Olsen
Translation Sciences Institute Slide Presentation Script, Roydon Olsen
Deseret Language and Linguistic Society Symposium
No abstract provided.
Some Comments On Intersection And Interjunction In Junction Grammar, Alan K. Melby
Some Comments On Intersection And Interjunction In Junction Grammar, Alan K. Melby
Deseret Language and Linguistic Society Symposium
No abstract provided.
Stratigraphy Of The Lower Tertiary And Upper Cretaceous (?) Continental Strata In The Canyon Range, Juab County, Utah, James M. Stolle
Stratigraphy Of The Lower Tertiary And Upper Cretaceous (?) Continental Strata In The Canyon Range, Juab County, Utah, James M. Stolle
Theses and Dissertations
The Canyon Range Formation (informal new name), formerly mapped as the Indianola Group within the Canyon Range, is divisible into two distinct, mappable units, A and B. Unit A is nearly all conglomerate strata, and conglomerate texture and sedimentary structures suggest an alluvial fan depositional environment. Precambrian and basal Cambrian quartzite clasts represent the erosional debris from the allochthonous Canyon Range thrust. Unit B is composed of interbedded fluvial sandstone and conglomerates with lacustrine limestones, commonly micritic and/or oncolitic. Conglomerate clasts indicate a Paleozoic carbonate provenance. Unit A, previously mapped as the Indianola, underlies Unit B and correlates with the …
Leaf Litter Processing In Aquatic Systems Two Variable Model, Boyd Jay Hanson
Leaf Litter Processing In Aquatic Systems Two Variable Model, Boyd Jay Hanson
Theses and Dissertations
The adequacy of the negative exponential model with one independent variable, days or accumulated time, as a descriptive equation for aquatic leaf litter processing was examined. The effect of adding a second independent variable, degree days or accumulated temperature, to the model was also examined. The two variable negative exponential model was shown to have at least two advantages over the single variable model. The two variable model adequately fits litter processing data for more cases than the single variable model. The expanded model also allows determination of rate coefficients for various temperature levels of the experiment rather than assuming …
Introductory Pages, Byu Studies
The Use Of Nuclear Reactions And Sims For Quantitative Depth Profiling Of Hydrogen In Amorphous Silicon, David D. Allred, G. J. Clark, C. W. White, B. R. Appleton, C. W. Magee, D. E. Carlson
The Use Of Nuclear Reactions And Sims For Quantitative Depth Profiling Of Hydrogen In Amorphous Silicon, David D. Allred, G. J. Clark, C. W. White, B. R. Appleton, C. W. Magee, D. E. Carlson
Faculty Publications
Depth profiles for hydrogen in amorphous silicon have been determined by the use of resonant nuclear reactions [1H(15N,αγ)12C and 1H(19F,αγ)16O] and by secondary ion mass spectroscopy (SIMS). Independent calibration procedures were used for the two techniques. Measurements were made on the same amorphous silicon film to provide a direct comparison of the two hydrogen analysis techniques. The hydrogen concentration in the bulk of the film was determined to be about 9 at % H. The SIMS results agree with the resonant nuclear reaction results to within 10%, which demonstrates that quantitative hydrogen depth profiles can be obtained by SIMS analysis …
High Pressure Liquid Chromatographic Methods For The Separations Of Derivatized Alpha-Keto Acids And Thiamine Phosphate Esters, Bruce Clark Hemming
High Pressure Liquid Chromatographic Methods For The Separations Of Derivatized Alpha-Keto Acids And Thiamine Phosphate Esters, Bruce Clark Hemming
Theses and Dissertations
Improved methods have been developed for separation of a-keto acid derivatives and for thiamine and its phosphate esters. Linear gradient reverse phase chromatography using ion-pair formation provides baseline resolution for a seven-component homologous series of a-keto acid dinitrophenylhydrazones having increasing carbon chain lengths. Branched-chain keto acids can also be separated. Aldehyde derivatives were examined as possible interfering compounds. Peak identification in biological material was confirmed for pyruvate by an enzymic peak shift technique. Monitoring near 365 nm permits low nanogram detection. Preliminary studies of keto acids in biological material illustrate the method's applicability. The same system with slight changes separates …
A Photochemical Study Of S-Triazolo[4,3-B] Pyridazine And 3-Diazo-4-Oxo-3,4-Dihydroquinoline, John Timothy Carlock
A Photochemical Study Of S-Triazolo[4,3-B] Pyridazine And 3-Diazo-4-Oxo-3,4-Dihydroquinoline, John Timothy Carlock
Theses and Dissertations
When subjected to ultraviolet radiation in the presence of an alkene, s-triazolo[4,3-b]pyridazine (STP) undergoes an unusual 3 + 2 photocycloaddition wherein the alkene adds to the 1 and 8 positions of STP with concommitant N4-N5 bond cleavage yielding 5,6-disubstituted-6,7-dihydro-7-methylene (and 7-cyanomethyl)-5H-pyrrolo[1,2-b]-s-triazoles. Amides and esters of indole-3-carboxylic acid have been synthesized by a novel reaction employing the ultraviolet irradiation of 3-diazo-4-oxo-3,4-dihydroquinoline (QDA) in the presence of amines or alcohols respectively. QDA, when irradiated, is postulated to undergo an internal Wolff Rearrangement to Indole-3-ketene which can add any amine or alcohol to form the corresponding amide or ester in modest to good …
The Synthesis Of Novel Macrocyclic Multidentate Compounds From Dioxodioic Acids (1), R. Elliott Asay
The Synthesis Of Novel Macrocyclic Multidentate Compounds From Dioxodioic Acids (1), R. Elliott Asay
Theses and Dissertations
A series of novel macrocyclic multidentate crown compounds have been prepared from a series of dioxodioic acids. The dioxodioic acids were prepared by treating various oligoethylene glycols or amines with maleic, succinic, citraconic, and glutaric anhydrides. The crown compounds were then synthesized from the dioxodioic acid chlorides obtained from the diacids and various oligoethylene glycols or ethylene diamine.
Real-Time Computer Optimized Scanning Potential Coulometry For Multi-Component Trace Analysis, Norman W. Petty
Real-Time Computer Optimized Scanning Potential Coulometry For Multi-Component Trace Analysis, Norman W. Petty
Theses and Dissertations
The instrumentation and methodology for real-time computer controlled scanning potential coulometry for multi-component trace analysis is described. The sensitivity limit was determined to be 10^-8 F for electrochemically reversible constituents. The sensitivity limit could be extended if measures were taken to compensate for the periodic signal found on the electrolysis current. Non-linear least squares curve fitting methods accurately resolved iron-platinum and silver-iron interferences to give accurate determinations for iron and silver. The resolving capability of this method was tested using theoretically generated scanning potential coulograms. The computer resolved sample constituents with a 1 to 100 concentration ratio and a formal …
The Mammals Of Zion National Park With Emphasis On Ecology And Distribution Of Twelve Species Of Rodents, Paul A. Gardner
The Mammals Of Zion National Park With Emphasis On Ecology And Distribution Of Twelve Species Of Rodents, Paul A. Gardner
Theses and Dissertations
Information concerning the mammals of Zion National Park was needed for management purposes and general information. During the summers of 1975 and 1976, mammals observed throughout the park were recorded and habitat structure was measured for each animal at the immediate observation site. Ordinations based on stepwise discriminant analyses of the data on 12 rodent species were constructed and substantiated by Bray-Curtis analyses. The results showed that amounts of cover and boulders contrasted the habitats of Peromyscus eremicus, P. maniculatus, P. crinitus, P. boylii and P. truei. A second group of species--Eutamias minimus, E. umbrinus, Spermophilus variegatus, Tamiasciurus hudsonicus, Dipodomys …
Ex Nihilo: The Development Of The Doctrines Of God And Creation In Early Christianity, Keith Norman
Ex Nihilo: The Development Of The Doctrines Of God And Creation In Early Christianity, Keith Norman
BYU Studies
No abstract provided.
Everybody Is Ignorant, Only On Different Subjects, Eliot Butler
Everybody Is Ignorant, Only On Different Subjects, Eliot Butler
BYU Studies
No abstract provided.
Karl G. Maeser's German Background, 1828-1856: The Making Of Zion's Teacher, Douglas F. Tobler
Karl G. Maeser's German Background, 1828-1856: The Making Of Zion's Teacher, Douglas F. Tobler
BYU Studies
No abstract provided.
The Dependence Of The Apparent Pk Of Ion Exchange Celluloses Of Ionic Strength, Paul Cyril Gillespie
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 …
Isolation, Purification, Scanning Electron Microscopy And Bacterial Dna Uptake Of Plant Protoplasts, Bronwyn G. Hughes
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 …
Certain Edaphic And Biotic Factors Affecting Vegetation In The Shadscale Community Of The Kaiparowits Area, Vane Orlan Campbell
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
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.