Digital Commons Network^™

Trace Element Anomalies In The Igneous Wall Rocks Of Hydrothermal Veins In The Searchlight District, Nevada, Zuhair Al-Shaieb

Masters Theses

"Two hundred and fifty vein and wall rock samples were collected from Chief of the Hill and the Duplex Mines of Searchlight District, Nevada. The samples were collected along lines approximately normal to the veins. They were analyzed for lead, copper, zinc, silver, gold, arsenic, selenium, and molybdenum using neutron actication analysis and atomic absorption spectrophotometry. Gold, silver, copper, lead and zinc show well-developed anomalies in the wall rocks. In most cases, the concentration of these elements decreases gradually with increasing distance from the vein and reaches background values at a distance of 40-120 feet from the vein. Molybdenum and …

The Background Concentrations Of Copper, Lead, And Zinc In Streams Of The "New Lead Belt", Missouri, Nicholas Howard Tibbs

Masters Theses

"This study was initiated to determine the background concentrations of copper, lead, and zinc in the streams of the Viburnum Trend or New Lead Belt of southeast Missouri. Analytical methods were developed for atomic adsorption spectroscopy. These methods initially consisted of coextraction of cooper, lead, and zinc using the APDC/MIBK system, and finally of extraction of copper by APDC/MIBK and direct analysis of lead and zinc using the newly developed "Sampling Boat" technique. The data obtained from these analyses were arranged in histograms and critically analyzed. The background concentrations were established to be 4-6 ppb for all three elements. Methods …

A Study Of Earth Science Teachers And Practices In North Dakota For The Academic Year 1968-1969, Howard C. Reith

Theses and Dissertations

In the period between 1961-1964 the North Dakota department of Public Instruction initiated long overdue changes in the science curriculum for the seventh, eighth, and ninth grades of the public schools. Titese involved changes from general science to the life, earth, and physical sciences. During this same period there was a re vitalization of interest in earth science at the national level, with the public school enrollment rising from several thousand to well over one million.

Because of the rapid national growth in earth science enrollment, and the status of earth science in North Dakota, a study to determine the …

Fort Union (Paleocene) Mollusks From Southern Golden Valley And Southeastern Billings Counties, North Dakota, John J. Delimata

Theses and Dissertations

Nine molluscan species are known to occur in Tongue River Sentinel Butte sediments of parts of Billings, Golden Valley, and Slope Counties in southwestern North Dakota. Tongue River sediments contain all nine of the species which include: two unionids, Plesielliptio priscus (Meek and Hayden) and Rhabdotophorus senec tus (White); one corbulid, Bicorbula mactriformis (Meek and Hayden); and six viviparids, Viviparus retusus (Meek and Hayden), Viviparus trochiformis (Meek and Hayden), Campeloma nebrascensis (Meek and Hayden), Lioplacodes limnaefonnis (Meek and Hayden), Lioplacodes nebrascensis (Meek and Hayden), and Lioplacodes tenuicarinata (Meek and Hayden). Only five of these species (P. priscus, Q. nebrascensis, V. …

Ionic Transport In Potassium Chloride, Robert Fuller, Charles L. Marquardt, Michael H. Reilly, John C. Wells Jr.

Robert G. Fuller Publications

The electrical conductivity and chlorine ion diffusion in KC1 and KCl:SrC1₂ single crystals have been analyzed by least-squares methods, using as a model a perfect crystal perturbed by five defects: isolated anion vacancies, isolated cation vacancies, divalent cation impurities, divalent cation-impurity-cation-vacancy complexes, and vacancy pairs. The transport equations were derived from this five-defect model using a simple theory for noninteracting particles, except for the nearest-neighbor binding to form complexes and vacancy pairs, and using the same theory including long-range Coulomb interactions between the isolated defects. This latter theory yielded the better description of the experimental results. However, the analyses …

Terminal Talk - The Wofford Connection - December 1968, Wofford College Computer Center

Terminal Talk

No abstract provided.

Precision Measurement Of The Electronic G Factors Of The Alkali Metals, Paul A. Vanden Bout, Erol Aygun, Vernon J. Ehlers, Tuncay Incesu

University Faculty Publications and Creative Works

We have measured the ratios of the electronic g factors of Na23, Rb85,87, and Cs133 to that of K39, using the atomic-beam magnetic-resonance technique. The results are gJ(Na23)gJ(K39)=1.0000007 (2), gJ(Rb85,87)gJ(K39)=1.0000182 (2), and gJ(Cs1333)gJ(K39)=1.0001231 (3). These results, combined with the results of other researchers, yield the following absolute g factors for the alkali metals: gJ(Na)=-2.002297 (2), gJ(K)=-2.002295 (2), gJ(Rb)=-2.002332 (2), and gJ(Cs)=-2.002542 (2). These g factors, with the exception of the value for Cs, are in good agreement with theoretical values.

Nuclear Spin, Hyperfine-Structure Separation, And Nuclear Magnetic Moment Of 18-Min Rb88, Paul A. Vanden Bout, Antoni Dymanus, Vernon J. Ehlers, Michael H. Prior

University Faculty Publications and Creative Works

We have used the atomic-beam magnetic-resonance technique to measure the nuclear spin and the hyperfine-structure separation of 18-min Rb88 in the S122 electronic ground state. These results, combined with the Fermi-Segrè formula, yield the nuclear magnetic moment. Our results are: I=2, Δν=±1186.084(18) MHz, μI(uncorr)=±0.506(5) nm, μI(corr)=±0.508(5) nm. Present nuclear theory favors assignment of the negative sign to the value of the moment.

Species And Abundance Of Diurnal Raptors In The Panhandle Of Nebraska, John E. Mathisen, Ann Mathisen

Nebraska Game and Parks Commission: Staff Research Publications

RECENT evidence of population declines for several species of raptors has been a subject of some concern both nationally and internationally. Although raptors are the most conspicuous birds in our environment, by virtue of their large size, flight habits, and food habits, little information is available to evaluate population densities and trends over large areas. Data are needed to provide yardsticks for judging population changes over time periods and among geographic areas.

This study was undertaken to provide information on the species and seasonal abundance of raptors in the panhandle of Nebraska for three years (1957 through 1959). Ten years …

An X-Ray Diffraction Study By The Powder Method Of Solid Solutions In The System Zno-Cro3-H2O At 25° C, William Alan Livingston

Masters Theses

No abstract provided.

Energy Deposition By Electron Beams And Δ Rays, E. J. Kobetich, Robert Katz

Robert Katz Publications

The product of two empirical relations, for the practical range and the transmission probability of normally incident electrons through plane sheets of matter, may be differentiated to yield a simple formulation of the energy deposition by electron beams, in agreement with more complex formulations and with experimental data. When combined with the δ-ray distribution formula, these results provide a theory of the spatial distribution of ionization energy about the path of a rapidly moving ion, which is basic to theories of radiation damage and detection.

Rotational Excitation Of Polar Molecules By Electrons, Marvin H. Mittleman, Jerry Peacher, Balazs F. Rozsnyai

Physics Faculty Research & Creative Works

Rotational excitation of polar molecules is calculated in the approximation that the electron transit time is short compared with rotational periods with the result of an E^-1 behavior of the cross section. Diffusion cross sections are calculated for Δl=0,1,2. Significant corrections to the Born approximation are obtained for large dipole moments. The range (in energy) of applicability of the result is discussed in terms of the energy dependence of the corrections, and a novel energy dependence of these corrections is encountered and explained.

Measurement Of Positron Annihilation Line Shapes With A Ge(Li) Detector, H. (Henry) P. Hotz, J. M. Mathiesen, J. P. Hurley

Physics Faculty Research & Creative Works

We observed that the annihilation radiation photopeak in a Ge(Li) detector is considerably broader than that of a γ ray of the same energy. It seems reasonable to assume that the increased width is the result of the Doppler broadening of the annihilation photopeak, i.e., the longitudinal Doppler shift of the radiations is measured, while the transverse shift is measured in the usual angular-correlation experiments. By using a computer stripping program to remove the distortion produced by the finite energy resolution of our detector, we obtain momentum distributions in agreement with those which have been published. Only one detector is …

The Prairie Naturalist Volume 1, No.4. December 1969

The Prairie Naturalist

EDITORIAL: Restoring Beauty to the Human Environment ▪ Paul B. Kannowski

A REQUIEM FOR THE PRAIRIE ▪ Hugh H. Iltis

BIRDING IN MY BACK YARD ▪ Mrs. George A. Anderson

OCCURRENCE OF THE CECROPIA AND ROCKY MOUNTAIN SILK MOTHS IN SOUTHWESTERN NORTH DAKOTA ▪ James Oberfoell

Application Of The Method Of Lattice Statics To Interstitial Cu Atoms In Cu, John Flocken, John Hardy

John R. Hardy Papers

We have calculated the lattice distortion produced by a body-centered interstitial Cu atom in a Cu host lattice. The calculations have been carried out consistently on the basis of discrete lattice theory, using the technique of lattice statics which is based on the Fourier transformation of the direct-space equilibrium equations. The force constants for the perfect lattice have been taken from measured phonon-dispersion curves, and we have used Huntington's Born-Mayer potential to describe the interaction between the interstitial atom and the atoms of the host lattice. The comparison of our results with those obtained by earlier workers, using semidiscrete matching …

The Ias Bulletin, V2n5, November 1968, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Board of Directors Meeting at UNI
--- Visiting Scientist Program to be Revived
--- Speakers Bureau Directory to be Developed
--- Third Articulation Conference Passes Resolution
--- Membership and Dues Information
--- Local Arrangements Committees at Work
--- Academy Representatives to Attend AAAS Convention
--- Research Funds Still Available
--- AAPT Selects New Officers
--- ISTS Notes
--- Participation Form
--- Registration for Inclusion
--- IAS Address Changes and Corrections

Theoretical Analysis Of The Vibrations And Rotations Of The B¹[Sigma][Mu] State Of The Hydrogen Molecule, Sandra Zink Moody

Physics & Astronomy ETDs

Theoretical calculations of the rotational-vibrational constants of the B¹Σ⁺_u state of H₂ were made using the Dunham analysis and by fitting equations to energy eigenvalues. The potential energy function for the nuclei used in the calculations was computed by W. Kolos and L. Wolniewicz using the variational technique. The power series used in the Dunham analysis made use of Stirling's central difference interpolation polynomial. The equilibrium separation R_e found from the Born-Oppenheimer potential is 2. 42916₅ atomic units, differing from the Kolos-Wolniewicz value of 2.4288. Adiabatic corrections were taken into account through a …

Press Reports, Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Bulletin No 3609 - Land Development In The South Eastern Wheatbelt, G T. Halpin, P. Nelson

Bulletins - 3000 - 3999

Interest in the development of light lands in the south-eastern wheatbelt was spurred by the many ex-servicemen seeking farms after the 1939-45 World War.

Previous attempts to develop this area had been frustrated by poor crop yields, and by the poor carrying capacity of those volunteer pastures which developed on cleared land.

Research into reasons for the poor crop results was begun in 1948-49 with trials sown by Messrs Smith and Halpin between Borden and Lake Grace. The results clearly showed the important role played by copper and zinc in successful crop growth. Since then, field trials have been conducted …

Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration

Publications (WR)

This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.

Revisions Of Two Subgenera Of Andrena: Micrandrena Ashmead And Derandrena, New Subgenus (Hymenoptera: Apoidea), David O. Ribble

Bulletin of the University of Nebraska State Museum (1924–2023)

This paper is a monographic revision of the bee subgenera Micrandrena Ashmead and Derandrena, new subgenus, of the genus Andrena in North America. Both subgenera occur in the New World and Micrandrena also occurs in the Old World. Twenty-eight species are treated, of which twelve are new: Andrena (Micrandrena) annectens, ishii, labergei, lamelliterga, lepidii, micheneri, Andrena (Derandrena) arctostaphylae, californiensis, hermosa, murietae, penutiani, viridissima. Thirteen names are placed in synonymy: Andrena semotula Cockerell with candidiformis Viereck and Cockerell; subtilicornis Viereck, nitidicornis Cockerell, chlorogaster nesiotes Timberlake, chlorogaster gavilanica Timberlake, radialis Timberlake, catalinica Cockerell with chlorogaster Viereck; vegana Viereck and Cockerell with illinoiensis …

Basic Statement On Migratory Bird Treaty, E. M. Bosak

Bird Control Seminars Proceedings

My portion of the program is the basic statement on the Migratory Bird Treaty Act regulations. Basically, laws are designed to control the actions of human beings. J. Edgar Hoover recently stated, "Man cannot live in our complex society today without a system of laws. The social system is doomed unless the laws are enforced, and the enforcement officer is ineffective unless his efforts to maintain the peace and protect life and property are supported by the government and the people." Therefore, it behooves each one of us to be aware of those laws that affect us in our everyday …

Bird Control Under A State Fish And Game Permit System, James Shepard

Bird Control Seminars Proceedings

I guess the impetus for laws in our state, really was the action of the city of Boston in 1963, when the Parks and Recreation Department felt that it was time to do something about massive populations of pigeons on the Boston Commons and in the city. The Parks Department came to our agency to find out what could be done. We immediately found as a result of a reorganization and recodification of the laws some 20 years before, that it was illegal to use or apply poisons for the purpose of killing any birds or mammals in the Commonwealth …

Use Of Strychnine Treated Grain For Industrial Pigeon Control, Joseph Watkins

Bird Control Seminars Proceedings

The pest bird involved in nearly 100% of our jobs has been the pigeon. We don't do killing in residential areas, nor have we done killing in downtown areas. All of our work has been confined to industrial plants and commercial buildings where strychnine, and we have used other methods that can kill the birds. In these plants we have had some problems with industrial or labor re-lations. These have been coped with by working with the union, with the labor relation people, and as high up as purchasing level. First of all we think that with strychnine if we …

Costs Of New Materials: The Manufacturer's Dilemma, Dan Macdougall

Bird Control Seminars Proceedings

I thought it was possible that some of you might not be acquainted with some of the frustrations which are involved in jousting with the bureaucracy in Washington. So I thought I would review that situation very briefly for you, particularly in regard to the compound Queletox. We will confess that we had some real qualms about accepting this material for control as a bird toxicant initially. And the reasons we were concerned about this were because the compound was being used in other areas as an agricultural chemical. It was registered for mosquito control, and it was being used …

Bait And Bait Materials, Fred R. Courtsal

Bird Control Seminars Proceedings

I'm going to speak about bird baits that are produced by the rodent-control fund. In my estimation, there are about six criteria for mixing good, high quality bait materials. The first one would be a toxicant. This is the first thing people talk or think about. I would assume that you would select a toxicant that has the quality to do the intended job. The second point is the sticker. So our criteria for a sticker are as follows: good adhering qualities, good spreading qualities (by this I mean if you introduce the toxicant into a sticker as is often …

To Kill Or Not To Kill : That Is The Question, John R. Beck, William J. Spitz

Bird Control Seminars Proceedings

In talking with the panel that has agreed to be with you this morning, we find that almost to a man they feel very strongly there is no "it" in bird control, that a good applicator needs to be well balanced and well rounded, that he needs to know, far more than one approach, that he needs to be able to understand people, biological problems, ecology, eco-nomics, and several other factors. The idea that sometimes comes across in meetings such as this is, and rightly so in some instances, "I have the final answer." Gentlemen, there is no "it" in …

Bird Problems At Military Airports, B. W. Brink

Bird Control Seminars Proceedings

I notice by the program that this was to be a progress report, new aspects of control. I'd like to narrow the scope a little bit, at least for my remarks; they will be essentially confined to activities of MAC, Military Airlift Command. There are 10 major commands in the Air Force. I'd like to reduce the word progress to lower case letters, at least; and I'd like to deemphasize the word new, for most of these things are not brand new for us. The scope of this problem is world wide, air force wide; and I'm going to confine …

Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons

Bird Control Seminars Proceedings

Encephalitis or "inflammation of the brain" is a general term applied to a disorder which may have many causes. Usually this disorder is caused by a virus but it may also be produced by other types of micro-organisms. Encephalitis may also occur after an initial infection with mumps, measles and other childhood diseases, or following a vaccination, or as a result of a non-infectious process such as poisoning. Since encephalitis affects the brain, which in turn controls all body functions, encephalitis from any cause can show symptoms of general illness throughout the body such as headache, nausea and vomiting, fever, …

Status Of Bio-Sonics In Pest Bird Control, Gordon W. Boudreau

Bird Control Seminars Proceedings

Bioacoustics is defined as the study of biologically significant sounds ori-ginated by animals, and the mechanisms which produce and receive these sounds. Many of these sounds are audible to the human ear but some are above the human hearing range and fall into the ultrasonics class. There are sounds used by animals which are near or below the normal human hearing range in pitch, as in certain fish. Bioacoustics comprises a broad field of investigation and is an area which has only recently been explored. Improvements in electronic audio equipment have provided the impetus which launched recent bioacoustical investigations and …