Physical Sciences and Mathematics Commons^™

15th Annual Rocky Mountain Spectroscopy Conference

Rocky Mountain Conference on Magnetic Resonance

Program and abstracts from the 15th annual meeting of the Rocky Mountain Spectroscopy Conference, sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 20-21, 1973.

Synthetic Analogs Of The Active Sites Of Iron-Sulfur Proteins. Structure And Properties Of Bis[O-Xylyldithiolato-Μ2-Sulfidoferrate(Iii)], An Analog Of The 2fe-2s Proteins, J. J. Mayerle, Richard B. Frankel, R. H. Holm, James A. Ibers, W. D. Phillips, J. F. Weiher

Physics

The synthetic analog approach has been applied to a clarification of the active sites of 2Fe-2S* proteins. The compound (Et₄N)₂[FeS(SCH₂)₂C₆H₄]₂, derived from o-xylyl-α,α′-dithiol, has been prepared and its structure has been determined by x-ray diffraction. The centrosymmetric anion contains two tetrahedrally coordinated ferric ions bridged by two sulfide ions and separated by 2.70 Å. Comparison of electronic, Mössbauer, and proton magnetic resonance spectra and magnetic susceptibility of the anion with the corresponding properties of the oxidized forms of the proteins reveals …

Water Resources News, Volume 5, No. 8, August 1973

Water Current Newsletter

From the Desk of the Director
Underground Dam Provides Water Supply
Northern Great Plains Resource Program Meetings Held
Russell Train Heads EPA
Warren Fairchild New Director of Water Resources Council
New Department Proposed
Backlog of Water Projects
National Commission Short Sighted on Water Needs
New Discharge Permits for Feedlots
Fiscal Year 1974 Title II Programs Announced

Spectral Irradiance In Nebraska Reservoirs And A New Instrument For Its Measurement, Gary D. Uphoff

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

A Study Of Decompiling Machine Language Into High-Level Machine Independent Languages, Barron Cornelius Housel

Department of Computer Science Technical Reports

No abstract provided.

Thermodynamic And Electrochemical Studies Of Niobium In Molten Fluorides And Chloroaluminates, Gann Ting

Doctoral Dissertations

The oxide chemistry of niobium(V) has been studied in molten LiF-BeF₂ mixtures. The stoichiometry of an oxygen-containing niobium(V) species (NbO₂F) has been established in molten Li₂BeF₄ from the heterogeneous equilibrations of NiNb₂o₆ and NiO with the melt containing NiF₂, the equilibrium quotient for the reaction was determined. The equilibrium quotient for the heterogeneous reaction of Nb₂O₅ and BeO with molten LiF-BeF₂ mixtures (67-33 and 52-48 mole %) was also determined, and the effect of the melt composition on the solubility of Nb₂O_{5 …}

Enzyme And Tissue Alterations In Fishes: A Measure Of Water Quality, David E. Hinton, M. W. Kendall, J. C. Koenig

KWRRI Research Reports

A variety of freshwater fishes were studied by light and electron microscopy, enzyme histochemical and biochemical methods, The objective was to determine normal structure and function in specific target organs and to compare these to altered states in aquatic pollution. The basic question, "can fish tissues and enzymes serve as indicators of water quality?," was asked. Microscopic alteration in gill was indicative of copper toxicity at an exposure of 20 parts per billion, Gross and light microscopic alterations were indicative of a single exposure of channel catfish to 15 parts per million of methyl mercuric chloride (CH₃HgCl). Microscopic …

On Hamiltonian - Connected Graphs, James E. Williamson

Dissertations

No abstract provided.

Angular Distributions Of Protons From The 28Si(∝,P)31P Reaction, Susan Mary Allen

Masters Theses

No abstract provided.

Simultaneous Knudsen- And Torsion-Effusion Measurements Of The Vapor Pressures Of Tetraphenyl Silane And Hexaphenyl Disilane, Luz Marina Calle

Masters Theses

No abstract provided.

Properties Of 1‾ Excited States Of Complex Nuclei, Carlos Ignacio Calle

Masters Theses

No abstract provided.

Hot Electron Injection Into Dense Argon, Nitrogen, And Hydrogen, Pavel Smejtek, M. Silver, K. S. Dy, David G. Onn

Physics Faculty Publications and Presentations

Hot electrons have been injected into very dense argon, nitrogen, and hydrogen gases and liquids. The current‐voltage characteristics are experimentally determined for densities (N) of argon, nitrogen, and hydrogen ranging from about 10²⁰ to 10²² cm⁻³ and applied fields (E) ranging from about 10 to 10⁴ V cm⁻¹. The argon data show a square root E∕N dependence of the current. The nitrogen and hydrogen data show a complicated dependence of the current on E∕N due to the rapid thermalization in the region of the image potential of the injected electrons through inelastic collision processes not present in argon. A hydrodynamic‐two‐fluid …

Geology Of Atwater Well Field Kalamazoo County, Michigan, John E. Malanchak

Masters Theses

No abstract provided.

A Study Of Visual Pollution From Overhead Wires And Associated Structures, Robert J. Schodorf

Masters Theses

No abstract provided.

The Internal Chemical Shift. A Key To Bonding In Aromatic Molecules. I. Internal Shift Correlations, Donald W. Beistel, Holger E. Chen, P. J. Fryatt

Chemistry Faculty Research & Creative Works

The study of proton shift behavior in nine families of disubstituted benzenes has provided quantitative correlations of internal and meta shifts among all families. The equations of correlation are useful in the prediction of shifts to an error of 0.015 ppm. The studies demonstrate shift additivity for the 4-substituted halobenzenes and suggest a chain rule relationship for substituent effects in those compounds. For that reason, previous theories of substituent interactions involving inductive and resonance contributors appear incorrect when applied to proton shift data. In decreasing order of up field shift at the ortho protons the substituents studied include N(CH3)2, NH2, …

On The Use Of Drift Bottle And Seabed Drifter Data In Coastal Management, Christopher S. Welch, John J. Norcross

Reports

The use of drift bottle and seabed drifter information for use in coastal management is discussed. The drift bottle/seabed drifter portion of VIMS project MACONS (Mid Atlantic Continental Shelf) is described as an example of how a comprehensive survey using drift bottles and seabed drifters provides data useful for coastal management. The data from MACONS are analyzed to answer specific questions of interest to several different coastal managers: a manager siting a deep oil port, one siting a sewage outfall, a manager responsible for setting up emergency beach protection procedures before an accident occurs, and a manager responsible for the …

Comment On "Length And Velocity Formulas In Approximate Oscillator-Strength Calculations", Anthony F. Starace

Anthony F. Starace Publications

A previous paper by Starace showed that the length formula for the electric-dipole matrix element is the only consistent one for calculations that solve for the exact eigenfunctions of an approximate Hamiltonian containing a nonlocal potential. It is emphasized here that disagreement between such a length-formula calculation and experiment indicates inadequacy of the approximate Hamiltonian and not that the velocity formula may be preferable.

A Study Of Shore Erosion At Seventeen Sites Along Eastern Lake Michigan, Walter George Fingleton

Masters Theses

No abstract provided.

An Historical Review Of Oil Spills Along The Maine Coast 1953-1973, Edward H. Shenton

Maine Collection

An Historical Review of Oil Spills Along the Maine Coast 1953-1973

by Edward H. Shenton

Prepared for The Maine State Planning Office, Coastal Planning Group and The Research Institute of the Gulf of Maine (TRIGOM), August, 1973.

TRIGOM Publication No. 3

Contents: Introduction / A Chronology of Significant Oil Spills / A Summary of Biological Impacts / Spill Statistics / Discussion of Results / Conclusions of the Study / Recommendations for Future Research / Appendices

State Of Bacterial Dna After Uptake Into The Roots Of Germinating Barley Seeds, Larry Dale Lawson

Theses and Dissertations

Germinating barley seeds have been shown to take up Bacillus subtilis DNA labelled with 5-bromouracil and tritiated thymidine and retain the DNA in the root system without substantially degrading it. The percentage of bacterial DNA recovered from the total root DNA was independent of the amount of bacterial DNA available for uptake. Four observations indicated the stability of bacterial DNA after uptake into barley roots: (1) the bacterial DNA retained its transforming ability after recovery from the roots; (2) the labelled B. subtilis DNA showed similar CsCl density gradient patterns before uptake and after uptake; (3) most of the radioactivity …

I. An Isothermal Titration Microcalorimeter. Ii. Importance Of Micronutrients In Nutrition. Iii. Zinc Bibliography, John Willard Gardner

Theses and Dissertations

I. An isothermal titration microcalorimeter having a colume of 4 ml and capable of temerature control to ±2 x 10-5°C is described. Major components include a constant temperature water bath controlled to ±3 x 10-4°C, a platinum reation vessel, and an isothermal control circuit consisting of constant Peltier thermoelectric cooling and variable Joule heating controlled by a thermistor in an AC Wheatstone bridge circuit. The calorimeter was tested by measuring the heat of ionization of water and was found to produce data accurate to ± 0.1% where small samples are used such as in the investigation of many biological systems.

The Intensity Of Ligand Absorption, Shing-Bong Chen

Masters Theses & Specialist Projects

The ultraviolet absorption spectra of a number of aryl phosphines and amines and transition metal complexes of triphenylphosphine have been determined. These data indicate that the intensity of the Õ* ¬ Õ phenyl ring transition is not only sensitive to the central atom attached to the ring but is also affected by the metal ion in the complex. Since the degree of covalency depends on the degree of back donation, the oxidation state of the metal ion was found to be the most important factor in determining the intensity of the absorption. The more covalent the metal-phosphine bond, the lower …

Determination Of (N, 2n) Reaction Isomeric Cross Section For 87rb, 112cd, 138bz, And 186w Using 14 Mev Neutrons, Hsiao-Chueh Kao

Masters Theses & Specialist Projects

The purpose of this investigation was to measure the cross section for each of the reactions 87_{Rb(n, 2n)} 86m_Rb, 112_{Cd(n, 2n)}111m_Cd, 138_{Ba(n, 2n)} 137m_Ba and 186_{W(n, 2n)} 185m_W at 14.7 ± 0.03 MeV incident neutron energy. The incident neutron flux was determined during each irradiation from the activity produced in copper or aluminum disks between which the isotopically enriched sample was sandwiched. The 63_{Cu(n, 2n)}62_Cu and 27_{Al(n, p)}27_Mg reaction cross sections were assumed to be 593 ± 45 mb and 73 ± 5 …

Separation Of Copper (Ii) And Silver (I) By Differential Rates Of Extraction & Extraction Rate Studies Of Copper(Ii), Jon Hines

Masters Theses & Specialist Projects

It was the purpose of this work to study the extraction of Cu(II) and Ag(I) with dithizone in chloroform. This particular pair of elements was chosen for study for several reasons. The most prominent of these reasons is that these two elements are found together in nature and are often found combined in manufactured products. Being in the same periodic group, they exhibit similar chemical characteristics making them difficult to separate without special procedures. These similar chemical characteristics make the analysis of these elements difficult when in the presence of each other. Finally, it is of importance that both elements …

Electron Transfer Rate Between Cobalt(Ii)-Cobalt(Iii) Polypyridyl Complexes In Nonaqueous Solvents, William Prow

Masters Theses & Specialist Projects

Numerous studies have been made in recent years on electron transfer reactions of transition metal complexes which proceed by either an inner- or an outer-sphere mechanism. However, except for the Fe(II)/ Fe(III) isotopic electron exchange system, few of the studies have been conducted in other than aqueous media. This study was undertaken to examine solvent effects on redox reactions of transition metal complexes which proceed by an outer-sphere mechanism.

During this study, the electron exchange rate between the bis(2,2',2"-tripyridyl)cobalt(II) complex and the tris(2,2'-dipyridyl) cobalt(III) complex was measured in a number of nonaqueous solvents. Rate measurements were made at three or …

The Reactions Of Carbyl Sulfate With Weak Organic Bases, Cheryl Geiger

Masters Theses & Specialist Projects

The objective of this thesis is the study of the reactions of carbyl sulfate with two classes of weak bases: alcohols and nitriles. Of lesser maonitude the thesis will present a syncpsis of the probable mechanism of the reactions of carbyl sulfate.

Linear Operators Between Nonarchimedean Banach Spaces, Krishnamachari S. Nadathur

Dissertations

I Preliminaries

The purpose of this dissertation is to extend some classical results on compact and Fredholm operators to the case in which the linear spaces involved are non-archimedean normed linear spaces over a valued field.

In Section I are listed some definitions and basic concepts that are needed for a study of non-archimedean valuation theory. The concepts of tensor products of nonarchimedean Banach spaces over a spherically complete field F, and of the tensor product of operators, are also dealt with in this section.

The proofs of most of the results in Section II are based on the known …

Triplet-Triplet Energy Transfer In Indolylketones, Larry E. Hewitt

Dissertations

No abstract provided.

Study Of Dynamic Programming And Gambling Systems., N. D. Prabhakar Dr.

Doctoral Theses

The body of methods known as Dynamic Programming (d.p.) was developed by Bellman and was successfully applied by him to solve practical problems in diverse fields (see 12] and the pa pers cited there.). These methods revolved around an intuitively appealing principle which Bellman called the principle of optimatity. A general formulation of d.p. problem was given by Blackwell (3, s] which is narrower in scope than Bollman's but includes many important applications i12) and offers a proper framework for asking the many inte- resting and mathematically sophisticated questions that arise in d.p.. Strauch, Brown, Maitra, Furukawa, Dantas, Hinderer etc., …

Water Resources News, Volume 5, No. 7, July 1973

Water Current Newsletter

From the Desk of the Director
Fiscal Year 1973 WRRI Research Staff
NWRRI Administration Assistant Appointed
NWRRI Hosts Energy Conference
Congratulations Ed McPartland!
Final NWC Report Receives Icy Reception from Westerners
Burec Warns White House
New Office of Research and Development
NWC Report Under Fire by House Committee