Physical Sciences and Mathematics Commons^™

Reaction Of Aqueous Catechol Solutions With Minerals, Boonthong Poocharoen

Dissertations and Theses

The effectiveness of catechol, an aromatic vic-diol, in dissolving silicate minerals was studied. A synthetic amorphous magnesium trisilicate, Mg₂Si₃O₈∙5H₂O, as well as the minerals olivine, sepiolite, diopside, augite, and enstatite were used to react with catechol in slightly acidic, basic, and neutral solutions. It was found, depending on the solvent used, that 33-52, 8-17, 14-30, 5-11, 3-6, and 0.5-1 % of the minerals dissolved, respectively.

The reaction with Mg₂Si₃0₈·5H₂0 resulted in the formation of crystals of magnesium tris (catecholato) siliconate nonahydrate Mg[Si(Cat)₃]∙9H₂0. Dehydration of the crystals at room temperature resulted in the loss of 6 moles of water to form …

The Geology Of The Southeast Quarter Of The Bone Mountain Quadrangle, Oregon, Richard Cortland Kent

Dissertations and Theses

This thesis is a study of the geology of the southeast quarter of the Bone Mountain Quadrangle. The bedrock geology mapped includes about 56 square miles.The Klamath Mountain and Coast Range Provinces of southwestern Oregon are represented in the area. Rocks in the area include the Rogue, Dothan Riddle, Days Creek, upper member of the Umpqua and Tyee Formations. The ages of these rocks range from Late Jurassic to middle Eocene. Late Jurassic ultramafic and mafic intrusive rocks associated with the Rogue Formation occur in the Klamath Province. The metavolcanics of the Rogue Format ion and an associated linear belt …

Agriculture And Pollution In Western Australia. Part 1. Background, C V. Malcolm

Journal of the Department of Agriculture, Western Australia, Series 4

For centuries there has been awareness of pollution but it has received dramatic publicity in recent years.

In Western Australia, provisions for its control are written into the Health Act and many other Acts besides the Environmental Protection Act of 1971.

A number of factors have acted worldwide and locally to increase awareness and concern about pollution, and to justify careful examination of the problems it causes.

Plant Cover For Bare And Salt Affected Land, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The contributions made by this State to land reclamation were recognised at an international level last year.

Mr. C. V. Malcolm, a research officer with the Soils Division, presented a paper entitled "Establishing Shrubs in Saline Environments" at a symposium on Useful Wildland Shrubs, Their Biology and Utilisation, at Utah State University, Logan, Utah.

The conclusion to Mr. Malcolm's review, set out below, summarises much of what is known about shrub establishment in saline areas.

Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm

Journal of the Department of Agriculture, Western Australia, Series 4

In Part I pollution was defined as a reduction in the usefulness of a resource and its significance in relation to resource fragility was discussed. Pollution problems in Western Australia are here considered in broad geographical regions with further subdivision into pollution types.

Metric Conversion For Agriculture, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Farmers are already becoming involved with metric units and by 1974 conversion of the farming industry will be well advanced. Wool sales converted to metric measurements in August, 1971, and sales by the various grain marketing boards will be largely in metric terms in the 1972 harvest. Weather information to the public has been given in metric terms since September 1.

Frost Injury To Cereals In W.A, M W. Perry, A. G. P. Brown

Journal of the Department of Agriculture, Western Australia, Series 4

Late spring frosts commonly reduce yields and affect the quality of grain in wheat crops, especially in the southern, eastern and north-eastern districts. The damage is usually localised on individual farms, but is sometimes widespread.

Barley, and oats to a lesser extent, are also affected. Average losses of wheat in Western Australia have been estimated at 3 to 5 per cent, per year, or about 2 million bushels on current production figures.

Soil And Plant Analysis For Mineral Deficiencies, M D. Carroll

Journal of the Department of Agriculture, Western Australia, Series 4

Soil and plant analysis (testing) has its supporters and its critics. Some of the differences are resolved if the distinction is made between the concept and the practice. Most people would agree with the concept of soil and plant analysis but the practice, or service offered, in any agricultural situation can be subject to valid criticism.

This article defines some of the principles involved and illustrates some of the problems, to provide a better understanding of the usefulness and the limitations of soil and plant analysis as a diagnostic aid in plant and animal nutrition.

Dust Storms Cause Yield Losses, Department Of Agriculture, Western Australia, C. H. Trotman

Journal of the Department of Agriculture, Western Australia, Series 4

Farmers and research workers are well aware that heavy grazing during summer loosens and exposes soil to the action of strong winds and summer thunder storms. They also realise that dust storms mean soil loss from paddocks, but until now there has been little idea of the effect of these storms on crop yields in subsequent seasons.

A Feasibility Study Of Commercial Upland Game Bird Farms In Waterloo County, Ontario, Robert John Mcclure

Theses and Dissertations (Comprehensive)

No abstract provided.

Group Theoretic Properties Of Some Schröedinger Equations : Systematic Derivation, Sukeyuki Kumei

University of the Pacific Theses and Dissertations

In this thesis, I study the group theoretic structure of the Schrodinger equations of simple systems by making use of a new systematic method. Group theoretic analysis of Schrodinger equations have been made previously by numerous physicists. The groups found may be classified as: a) geometrical groups; b) dynamical degeneracy groups; c) dynamical groups

The geometrical group arises simply from the spatial symmetry of the system. Although the geometrical groups are very useful, they are not very interesting from the physical viewpoint.

On the other hand, the study of the dynamical degeneracy groups and the dynamical group is very attractive …

Spectrophotometric And Microbiological Determination Of The Stability Of Sodium Ampicillin As Affected By Ph, Enrico Frank Raffanti

University of the Pacific Theses and Dissertations

The specific purpose of this investigation was to determine the effect of pH on the stability of ampicillin sodium for injection. Then, to correlate this information, a pH profile may be established to predict chemical stability with ampicillin sodium alone or when other drugs may be included in the admixture. With a pH profile the pharmacist could predict the length of time after which more than a 10 percent loss of activity would occur. Stability measurements were to be accomplished through a microbiological assay after adding ampicillin sodium to different buffer solutions. At the end of four hours, eight hours, …

Les Japygidés Cavernicoles De La Faune Française, Jean Pagés

International Journal of Speleology

Twelve species of Japygids are cites from France. Six are known with certitude from caves. None of them shows any morphological modification which can be ascribed to cavernicolous life. All of them are found outside caves except Metaj. doderoi Silv. which is known from a unique female from Castel Mouly cave. To take into account the selection which seems to occur among the species, the term “subtroglophile” is proposed to include those which can be found in the caves.

Some Bonding Aspects Of Cobalt Ions In Phosphate Glasses, Tewfik Boutros Absi

Archived Theses and Dissertations

No abstract provided.

Surface Area And Pore Structure Of Low Porosity Cement Pastes, Ghassan Andrawes Oweimreen

Archived Theses and Dissertations

No abstract provided.

The Interspersion Index As A Technique For Evaluation Of Bobwhite Quail Habitat, William L. Baxter, Carl W. Wolfe

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

Some forty years ago, the concept of habitat interspersion was advanced by Aldo Leopold (1931). Indicating then that "we are only on the threshold of an understanding of the ecology of game species," Leopold went on to postulate his law of interspersion which recognized that “game is a phenomenon of edges.” Although the validity of Leopold's premises has been documented both directly and indirectly many times in the past four decades, the complexity and frustration in describing ecological diversity of game range has continued to pose a problem for wildlife managers since 1931.

Research Into Modular Construction, Richard L. Tash

Retrospective Theses and Dissertations

No abstract provided.

The Heat Treatment Of Soil By Microwaves To Control Pathogenic Parasitic Fungi, Dean Franklin Rich

Retrospective Theses and Dissertations

No abstract provided.

An Inexpensive Electrical Vacuum Feedthrough, D. R. Kastelein, Richard A. Anderson, Kaare J. Nygaard

Physics Faculty Research & Creative Works

No abstract provided.

A Correction To Classical Homogeneous Nucleation Theory For Polar Molecules Exhibiting An Electric Double Layer At The Liquid Surface, Daniel R. White, James L. Kassner

Physics Faculty Research & Creative Works

An oriented dipole surface layer is added to the classical liquid drop model of nucleation to account for the surface behavior of substances having polar nonsymmetrical molecules. The preliminary treatment of the change in free energy as given by Abraham is modified to include Fletcher's exponential decay of the degree of orientation. An additional correction for the excess binding energy due to the presence of a foreign molecule in the prenucleation cluster is included to account for the inflections observed in the experimental results of Allen and Kassner. The resulting free energy of formation is combined with the kinetic treatment …

Collisional Excitation Of N+ At 50 Kev, D. H. Crandall, G. York, V. Pol, John T. Park

Physics Faculty Research & Creative Works

The excitation spectrum of N+ has been observed by examining the energy lost by a 50- keV N+ beam passing through a He target. The spectrum exhibits dramatic features with large cross sections. Determination of the approximate ratio of metastable to ground-state ions in the primary ion beam has permitted measurement of excitation cross sections from both ground-state and metastable N+ ions colliding with He target atoms. © 1972 The American Physical Society.

Studies On The Mechanism Of Action Of Nerve Growth Factor., D. (Daniel) B. Hier, B. G. Arnason, M. Young

Chemistry Faculty Research & Creative Works

No abstract provided.

An Aircraft, Aerosol Sampling Program: Some Preliminary Results, J. F. Stampfer

Chemistry Faculty Research & Creative Works

An aircraft sampling program to determine the vertical and size distributions of that part of the atmospheric aerosol with radius greater than 0.25 μ is described. The feasibility of using a single engine aircraft and a light scattering particle analyzer, for this work, is shown. Examples of the data are given and preliminary conclusions are drawn about the normal size distribution, effect of lapse rate on the vertical aerosol concentration gradient, effect of relative humidity on the size distribution, and the possibility of producing high concentrations of giant particles aloft. © 1972.

Structural And Magnetic Properties Of [(Ch₃)₃Nh] Cucl₃2h₂O, D. B. Losee, J. N. Mcelearney, A. Siegel, Richard Lewis Carlin, A. A. Khan, J. P. Roux, William Joseph James

Chemistry Faculty Research & Creative Works

The crystal structure at room temperature and the low-temperature heat capacity and magnetic susceptibilities of single crystals of [(CH3)3 NH]CuCl3 2H2O are reported. The monoclinic crystals belong to the space group P21c with a=7.479(10), b=7.864(11), c=16.730(23), =91.98(3)°, and Z=4. The structure consists of chains of edge-sharing [CuCl4(OH2)2] octahedra running along the a axis. Each copper atom is coordinated in a square plane by two water molecules and two chlorine atoms, with two more chlorine atoms at a longer distance. The susceptibility data can be fitted adequately between 1.5 and 20°K by a CurieWeiss law [ga=2.080.01, gb=2.020.01; gc=2.110.01; a=(0.380.03)°K, b=(0.360.03)°K, c=(0.410.03)°K], …

Environmental Status Report - July, August, Spetember/October, November, December 1971, Florida Power Corporation

Reports

The publication of this issue of the Environmental Status Report incorporates the environmental activities of Florida Power Corporation from July to December, 1971. Due to exigencies from the development and publishing of the Crystal River Unit 3 Environmental Report, the July-August-September, 1971 Quarterly is· sue was therefore postponed for inclusion with the October-November-December, 1971 Quarterly issue to provide a composite of the environmental programs and activities for the second half of 1971

The Myhill Functor, Input-Reduced Machines, And Generalised Krohn-Rhodes Theory, Robert H. Yacobellis

Computer Science: Faculty Publications and Other Works

No abstract provided.

A Study Of Selected Antineoplastic, Antibiotic, And Corticosteroid Drugs In Intravenous Admixtures, Melvin Philip Mcrae

University of the Pacific Theses and Dissertations

The benefits of intravenous therapy have become more and more apparent over the years. Medications can be given rapidly with an expectant rapid onset of action. The response to the drugs or fluids can often be closely controlled by regulating the dose or rate of administration. Frequently, adequate blood and tissue levels needed to eradicate many serious infections can be reached only by this route. Intravenous therapy is an especially appropriate method when the use of the oral tract, for one reason or another, cannot be used.

The development of intravenous therapy, however, did not proceed without its difficulties. Problems …

Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke

Canyonlands Research Bibliography

Canyonlands National Park is in about the center of the Canyon Lands section of the Colorado Plateaus physiographic province in southeastern Utah. The part of the park discussed embraces an area of about 400 square miles comprising isolated mesas, precipitous canyons, and dissected broad benches near the confluence of the Green and Colorado Rivers, the only perennial streams in the area. The climate is arid to semiarid; normal annual precipitation ranges from less than 8 to about 10 inches. Potential evapotranspiration is about 41 inches annually.

Geology of the park is characterized by nearly horizontal strata that dip gently northward. …

Nuclear-Spin Relaxation In Low-Density Molecular Hydrogen At Room Temperature, Peter A. Beckmann, E. Elliott Burnell, Krovvidi Lalita, Robin L. Armstrong, Kenneth E. Kisman, F. R. Mccourt

Physics Faculty Research and Scholarship

No abstract provided.

Observation Of The Influence Of Centrifugal Distortion Of The Methane Molecule On Nuclear Spin Relaxation In The Gas., Peter A. Beckmann, M. Bloom, E. E. Burnell

Physics Faculty Research and Scholarship

The spin–lattice relaxation time T₁ was measured in gaseous CH₄ as a function of density at room temperature between 0.006 and 7.0 amagats. T₁ was found to pass through a minimum near 0.04 amagats in agreement with previous, less precise measurements. The spin–rotation interaction is the dominant relaxation mechanism in gaseous CH₄. Since the spin–rotation constants are accurately known for CH₄, the relaxation experiments provide a check on the theory of spin–lattice relaxation for spherical top molecules. In the conventional theory, it is assumed that the correlation function of the spin–rotation interaction is …