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Articles 286681 - 286710 of 293432
Full-Text Articles in Physical Sciences and Mathematics
Rounding Errors In Algebraic Processes, J. H. Wilkinson
Rounding Errors In Algebraic Processes, J. H. Wilkinson
The Harlan D. Mills Collection
No abstract provided.
The Synthesis Of Some Decahydronaphthoic Acid Lactones, Robert C. Matejka
The Synthesis Of Some Decahydronaphthoic Acid Lactones, Robert C. Matejka
Open Access Master's Theses (through 2010)
The diterpenoid acids, dehydroabietic acid, podocarpic acid, abietic acid, and palustric acid, have been synthesized. This thesis records the successful completion of this task which involves a selective epimerization of C.8a. It is hoped that keto lactone on alkylation will give an intermediate of the type C.l epimers which is required for the synthesis of the abietic acid series.
Advisor: D. M. S. Wheeler
Central Utah Project Ultimate Phase: Inventory Of Available Data, Bureau Of Reclamation
Central Utah Project Ultimate Phase: Inventory Of Available Data, Bureau Of Reclamation
Elusive Documents
The plan for the Central Utah project involves a diversion of water from streams in the Uinta Basin in the Upper Colorado River Basin to the closed Bonneville Basin in Central Utah and other associated water resource developments in both basins. Construction of the initial phase of the project was authorized by the Colorado River Storage Project Act of April 11, 1956 (70 Stat. 105).
The ultimate phase will expand on the initial phase development. Its purpose will be to increase the transbasin diversion to the Bonneville Basin and to provide water for replacement and additional use in the Uinta …
The Reaction Of Metal Hydrides With Azoacetates, Thomas H. Althuis
The Reaction Of Metal Hydrides With Azoacetates, Thomas H. Althuis
Masters Theses
Introduction
The term aliphatic azo compound refers to those azo compounds in which at least one of the two nitrogen atoms is linked to a tetrahedral, that is, sp3 -hybridized carbon atom. Di-imides, RN=NH, however, are not being considered. Mixed aliphatic-aromatic azo compounds are those in which one nitrogen atom is linked to an sp3 -hybridized carbon atom and the other to an aromatic sp2 -hybridized carbon atom. If present, a symmetry element (point or plane) is determined by the mid-point between the two nitrogen atoms.
Relationships Oct-Nov 1965 Observation Well Measurements To Median Observed Ground Water Levels, E. C. Reed
Relationships Oct-Nov 1965 Observation Well Measurements To Median Observed Ground Water Levels, E. C. Reed
Conservation and Survey Division
No abstract provided.
Test 915: John Deere 2510 Power-Shift Diesel, Nebraska Tractor Test Lab
Test 915: John Deere 2510 Power-Shift Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 916: John Deere 2510 Syncro-Range Diesel, Nebraska Tractor Test Lab
Test 916: John Deere 2510 Syncro-Range Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 914: John Deere 2510 Syncro-Range Gas, Nebraska Tractor Test Lab
Test 914: John Deere 2510 Syncro-Range Gas, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 913: John Deere 2510 Power-Shift Gas, Nebraska Tractor Test Lab
Test 913: John Deere 2510 Power-Shift Gas, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 912: Farmall 656 (Diesel), Nebraska Tractor Test Lab
Test 912: Farmall 656 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 911: International 424 (Diesel), Nebraska Tractor Test Lab
Test 911: International 424 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 910: Farmall 1206 Turbo Diesel, Nebraska Tractor Test Lab
Test 910: Farmall 1206 Turbo Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 908: International 424 (Gasoline), Nebraska Tractor Test Lab
Test 908: International 424 (Gasoline), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 909: Farmall 656 (Gasoline), Nebraska Tractor Test Lab
Test 909: Farmall 656 (Gasoline), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Ultrasonic Tracking Of Migratory Fishes With An Internal Tag, Ross M. Horrall, H. F. Henderson, A. D. Hasler
Ultrasonic Tracking Of Migratory Fishes With An Internal Tag, Ross M. Horrall, H. F. Henderson, A. D. Hasler
School of Natural Resources: Faculty Publications
First paragraph:
A small ultrasonic tag, 9 mm by 40 mm in size, has been developed by members of the fish orientation group at the University of Wisconsin. The tag emits a continuous signal at approximately 65 kc/sec. The signal is received via a directional hydrophone and a high quality communications receiver. Tracking ranges of up to 1 km have been obtained. The placement of the tag is internal: either into the stomach or into the body cavity of the fish. The tags and tracking equipment have been successfully employed in studies on the open water movements and orientation of …
Study Of The Stereochemistry Of A Carbanion Generated From An Azoacetate, Nguyen Thanh Buu
Study Of The Stereochemistry Of A Carbanion Generated From An Azoacetate, Nguyen Thanh Buu
Masters Theses
Introduction
The reaction of lead tetraacetate with ketohydrazones to form azoacetates has been reported recently by Iffland, Salisbury and Schafer (13) and may be represented by the following equation:
R2C=N-NH-R' + Pb(0Ac)4 → R2C-N=N-R' + Pb(OAc)2 + HOAc OAc
Of principal interest has been the base-catalyzed decomposition of an azoacetate in a protonic solvent to give a ketone, a hydrocarbon, nitrogen and an acetate salt. The following sequence of steps has been proposed to account for these products (11).
Aminomethylation And Hydroxymethylation Of 6-Mercaptopublne And 6-Alkylthiopubines, Charles P. Bryant
Aminomethylation And Hydroxymethylation Of 6-Mercaptopublne And 6-Alkylthiopubines, Charles P. Bryant
Masters Theses
Introduction
The Mannich reaction and hydroxymethylation were used to prepare analogs of 6-mercaptopurine as possible antimetabolites. Physical and chemical methods were used to elucidate the structures of the compounds prepared.
The Relationship Of Instructions During Labor And Relaxation, Frances Josephine Hume Lopez
The Relationship Of Instructions During Labor And Relaxation, Frances Josephine Hume Lopez
Loma Linda University Electronic Theses, Dissertations & Projects
A causal-comparative study was done in a county hospital using twenty subjects to determine if the ''unprepared" primigravida patient in active labor will experience less pain if given instructions to aid relaxation. It was hypothesized that the "unprepared" primigravida patients receiving continuous nurse attendance plus instructions to aid relaxation by (1) breathing techniques, and (2) body positions would show less evidences of pain, tension and anxiety during the first and second stages of labor than the group of patients which received only the continuous nurse attendance.
Two devices, (1) a structured observation, (2) a questionnaire with fixed-alternative questions, were used …
Canine Teeth In Two Nebraska Mule Deer, John P. Weigand
Canine Teeth In Two Nebraska Mule Deer, John P. Weigand
Nebraska Game and Parks Commission: Staff Research Publications
During the November 1963 deer hunting season in Nebraska, hunters were required to produce all deer bagged at compulsory check stations. Information regarding species, sex and age of all deer checked was recorded at each station. It was at the North Platte station that the author examined the deer described below. A total of 423 deer, of which 322 were mule deer, were examined at this station.
Test 907: Nuffield 10 / 60 (Diesel), Nebraska Tractor Test Lab
Test 907: Nuffield 10 / 60 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Scaling In Isoelectronic Molecules, Jerry Goodisman
Scaling In Isoelectronic Molecules, Jerry Goodisman
Chemistry - All Scholarship
A modification of a scaling method introduced for atoms by Ellison enables one to use expectation values calculated for one molecule in calculations of the energy of a second molecule isoelectronic to the first. In going from Hz to Hez2+t,h e results are only fair, but in going from LiF to BeO, the results are suffeciently good to allow prediction of equilibrium distance and several expectation values as well as energy. The dipole moment is a notable exception, which reveals one basic dissimilarity between the two molecules, the ionic character. LiF dissociates to ions, Be0 to neutral atoms, causing our …
The Generalized Inverse In Linear Programming Basic Theory, L. Duane Pyle
The Generalized Inverse In Linear Programming Basic Theory, L. Duane Pyle
Department of Computer Science Technical Reports
No abstract provided.
Studies Of Rat Brain Thiamine Pyrophosphokinase, Lavell Rolfson Johnson
Studies Of Rat Brain Thiamine Pyrophosphokinase, Lavell Rolfson Johnson
Theses and Dissertations
The enzyme ATP:thiamine pyrophosphotransferase (thiamine pyrophosphokinaseJ was purified from acetone powders which were prepared from rat brains up to the chromatography on alumina C_γ step by a modified procedure that Mano (Y. Mano, J. Biochem., 42, 283 (1960)] developed for the purification of the rat liver thiamine pyrophosphokinase. The enzyme was purified 12 fold over that in the original extract of the acetone powder. A spectrophotometric assay for the brain thiamine pyrophosphokinase was developed utilizing brewer's yeast apotransketolase. The transketolase assay was able to detect less than 10^-11 moles of thiamine diphosphate, which was synthesized by the kinase, in the …
The Role Of Thiamine Pyrophosphate In Regulating The Level Of Gamma-Aminobutyric Acid In The Central Nervous System, Bryant L. Adams
The Role Of Thiamine Pyrophosphate In Regulating The Level Of Gamma-Aminobutyric Acid In The Central Nervous System, Bryant L. Adams
Theses and Dissertations
The level of gamma-aminobutyric acid in the brains of white rats suffering from thiamine deficiency symptoms resulting from pyrithiamine or oxythiamine antagonism of thiamine or from thiamine deprivation was measured. The level of this amino acid was 17.5% lower in the brains of pyrithiamine-treated rats and 20.0% lower in the brains of thiamine-deprived rats than in the control rats. Daily injections of ten times the required amounts of vitamin B6 in rats treated with pyrithiamine or oxythiamine or by thiamine deprivation had no effect on the level of brain gamma-aminobutyric acid or on the psiological behavior of these rats. The …
Hospital Situations In Which Male Patients Prefer A Male Nurse, Norma Groome White
Hospital Situations In Which Male Patients Prefer A Male Nurse, Norma Groome White
Loma Linda University Electronic Theses, Dissertations & Projects
This was a study of the preferences of men patients for the sex of the nurse desired to meet their physical, social, spiritual, and emotional needs. The purposes of the study were: (1) to identify the hospital situations in which a male nurse is preferred to give care, (2) to provide information that could be used in the utilization of male personnel, and (3) to provide information that could be used to possibly provide for better fulfillment of the needs of male patients.
The descriptive survey was chosen as the method of study. A questionnaire of thirty-five hospital situations was …
A Survey Of The Hospital Experience Of The Isolated And Non-Isolated Patient, Rose Marie Olson Kuhn
A Survey Of The Hospital Experience Of The Isolated And Non-Isolated Patient, Rose Marie Olson Kuhn
Loma Linda University Electronic Theses, Dissertations & Projects
The descriptive survey was the method used to conduct the study to find differences in the amount of nurse contact between the isolated patient's and the non-isolated patient's hospital experience, and to explore their feelings concerning their hospitalization. Ten patients, on the surgical units of three hospitals, were included in the study. Five of the patients were isolated because of an infectious disease and comprised Group I. Five patients who were not isolated served as a control and comprised Group II. Data were collected in two main categories: (1) the amount of nurse-patient contact, type of personnel visiting the patient, …
Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe
Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe
Reports
Initial field testing began shortly after the arrival of materials in August, 1964. The field experiments were designed to evaluate the effects of the long-chain alcohol C20 and particle size gradation on the effectiveness of evaporation retardants when applied by aerial techniques. The materials which were tested at Utah Lake are listed below.
Morbidity, Growth And Development Of Prematurely-Born Twins In Early Childhood, Lynelle King
Morbidity, Growth And Development Of Prematurely-Born Twins In Early Childhood, Lynelle King
Loma Linda University Electronic Theses, Dissertations & Projects
This study was concerned with the problem of determining the effect of twinship on the prematurely-born twin's growth and physical and emotional morbidity during early childhood. The immediate purposes of the study were to compare prematurely-born twins with prematurely-born singletons regarding their incidence and types of physical and emotional morbidity, and their growth during early childhood. It was hypothesized that prematurely-born twins have slower growth and more physical and emotional morbidity than prematurely born singletons. The descriptive survey method was used. From children cared for at a selected premature clinic, nineteen twins were matched with nineteen singletons for: race, sex, …
Thermodynamics Of Proton Ionization In Aqueous Solution I. A Precision Thermometric Titration Calorimeter ; Ii. Entropy Titration : A Calorimetric Method For Equilibrium Constant Determinations ; Iii. H And S Values For Carboxylic Acid Proton Ionization At 25c ; Iv. Site Of Proton Ionization From Adenosine, Lee D. Hansen
Theses and Dissertations
The design, construction, and calibration of a precision thermometric titration calorimeter is described. This calorimeter was tested by determining the enthalpy change for ionization of water. The result, 13.34 ±0.03 kcal/mole (standard deviation), is in exact agreement with the best literature values. This standard deviation indicates that, using this calorimeter, ΔH values can be determined with an accuracy of ±0.0.5 kcal/mole. A calorimetric procedure has been developed for the, simultaneous determination of the equilibrium constant, the enthalpy change, and the entropy change for a chemical reaction from a single titration (Entropy Titration). This procedure has been tested by determining pK, …
Test 906: Kubota Rv (Gasoline), Nebraska Tractor Test Lab
Test 906: Kubota Rv (Gasoline), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …