Digital Commons Network^™

Static Equilibrium Conditions For A Rigid-Ion Crystal, L. L. Boyer, John R. Hardy

John R. Hardy Papers

The equilibrium requirements for a static ionic crystal impose a number of constraints on the short-range forces which become increasingly more important when one is dealing with complex structures. These constraints are presented and discussed for a general rigid-ion lattice, and a specific discussion is presented for the wurtzite structure.

Determination Of The Origin Of The 10.6-Pm Absorption In C02 Laser Window Materials, John R. Hardy, B. S. Agrawal

John R. Hardy Papers

Theoretical studies are presented which show that it should be possible to determine whether the absorption at 10.6 pm in alkali halides is due to impurities or whether it is intrinsic. These studies show that the temperature dependence of the measured absorption should be very different for intrinsic multiphonon absorption as compared with defect-activated absorption.

The Prairie Naturalist Volume 5, No. 1. March 1973

The Prairie Naturalist

DATES FOR FIRST FLOWERS ▪ O. A. Stevens

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1972 ▪ Robert N. Randall 7

NORTHERN ENVIRONMENTAL COUNCIL CORPORATE AWARD, 1972—RESPONSE ▪ K. A. Carlson

ALGAL ASSOCIATIONS IN NEARSHORE WATERS OF GOLDEN LAKE, A SHALLOW PRAIRIE LAKE IN EASTERN NORTH DAKOTA ▪ Douglas W. Larson

NOTE

Observations of Wintering Bald Eagles at Garrison Dam, North Dakota ▪ Frank A. Splendoria

Water Resources News, Volume 5, No. 3, March 1973

Water Current Newsletter

From the Desk of the Director
Interdisciplinary Water Resource Seminar
Nitrogen In Nebraska's Environment
Cottonwood Watershed Gets Award
Water Conference at Nebraska Center
New Senior Specialist in Engineering and Public Works
New Officers for NWRA
Rain Bombs
Institute for Environmental Studies at Illinois
Water Pollution Study: Pushbutton?
Superport Sites for Oil Tankers
Report on Irrigation in Bulgaria Announced
World Climatic Data

Projected Hartree Product Wavefunctions. Vi. Natural Orbital Ci Expansions In Nonsinglet Cases, R.D. Koller, Gordon A. Gallup

Gordon Gallup Publications

The NSO's and NO's have been determined for some wavefunctions for Li, Be¹⁺, B²⁺, C^{3+ 2}S, and Be ³S wavefunctions containing radial correlation. It is shown how the NO's may be utilized to form rapidly converging CI expansions in general. The role of the NSO's in this problem is discussed. ©1973 The American Institute of Physics

An External Goniometer For Orientation Of A Cryostat, N.C. Lockhart, L.F. Nichols, Craig J. Eckhardt

Craig J. Eckhardt Publications

An economical two-circle orienting external goniometer has been designed and fabricated for an Andonian liquid helium Dewar. The Dewar can be tilted ±30° from the vertical in two perpendicular directions. The geometrical center of the Dewar's optical cavity moves a maximum of 1 mm when the cryostat is tilted the full 30°. The basic design involves the rotation of two concentric cylinders riding on bearing surfaces. Two chain belts and gear boxes are used as drive mechanisms.

Water Resources News, Volume 5, No. 2, February 1973

Water Current Newsletter

From the Desk of the Director
Interdiscplinary Water Resources Seminar
Summer Institutes Announced at the University of Nebraska
Research Project Initiatied on White River Basin
NU Irrigation Short Course
Nitrogen in Nebraska's Environment
White House Aids Chosen
Reap and Water Bank Programs Abolished
New EPA Training Grant Rules
Water Funds Lawsuit
Water Agencies, Inc.
Proposed Drinking Water Standards
EPA Issues New Water Pollution Control Standards
Laser Beam Eradication
MIT Offers Professional Degree; Environmental Engineer
Environmental Quality Improving
GAO Urges Changes on 160-Acre Limit
What About Water?

Absolute Line Strengths By Analysis Of Lu-Fano Plots With Application To Excited State Transitions In Neon, Anthony F. Starace

Anthony F. Starace Publications

Using energy eigenfunctions obtained by semi-empirical analysis of the Lu-Fano plot of energy level positions and employing the Coulomb approximation of Bates and Damgaard, we calculate absolute line strengths for transitions between the neon two-channel Rydberg series 2p⁵(²P_3/2,1/2)ns J = 1 and 2p⁵ (²P_3/2,1/2)n′ p J = 0 for n, n' = 3,4. Each Rydberg series is analyzed separately to obtain a set of five parameters which completely define the energy eigenfunctions for all values of n and n'. Interactions between the ns J = 1 …

Changes In Polysomes Of Black Locust Seedlings During Dehydration-Rehydration Cycles, James R. Brandle, P.D. Schnare, T.M. Hinckley, G.N. Brown

School of Natural Resources: Faculty Publications

No abstract provided.

Nebraska Wild Flowers, Robert C. Lommasson, Paul Lommasson (Depositor)

School of Natural Resources: Faculty Publications

This book is an attempt to present to the general public representative types of many of the conspicuous wild flowers found in Nebraska. These 260-some plants in no way constitute a flora of Nebraska which would number some 1,700 species of flowering plants. Included herein are both native and naturalized flowering herbaceous plants exclusive of the grasses and grasslike plants. Among these are plants that have had a long existence here and others which have recently invaded our area. Some are highly cherished and others are considered as common weeds. Excluded from this book are woody plants, such as trees, …

Animal Damage Control In South Dakota, V. Van Ballenberghe

Great Plains Wildlife Damage Control Workshop Proceedings

South Dakota, like virtually all other states, is subject to economic losses from wildlife depredations. We have been in the government sponsored, animal damage control business perhaps longer than some states - our history dates back to the time of Three-toes and the Custer Wolf. In 1973 we are still in that business, perhaps more intensively than ever before, and we regard animal damage control as one of the most pervasive and difficult to solve wildlife problems facing us.

The Missouri River bisects South Dakota into approximately equal "East River" and "West River" land areas. These differ ecologically, and to …

Using Population Mechanics In Management Schemes, Frederick F. Knowlton

Great Plains Wildlife Damage Control Workshop Proceedings

I. Why do we try to manage natural systems?

II. A Wildlife Management Perspective.

III. The challenge of managing carnivores.

IV. Does predation really occur?

V. Historically we have been faced with depredation problems and have been unable to resolve them when and where they arose.

VI. There have been vast changes in public sentiment and values.

VII. Let's look at some biological inputs ( coyotes).

VIII. Additional comments on meeting the problems when and where they occur.

IX. Selected readings.

Crayfish, Leech, And Snail Control

Great Plains Wildlife Damage Control Workshop Proceedings

We have effective results in controlling crayfish in our ponds using Baytex. Baytex is a higly toxic compound that effects the nervous system of many organisms. Used in small concentrations it will kill crayfish without hurting fish. We use Baytex at 40 ppb. We normally dilute the required amount of chemical with water and then mix it thoroughly in the pond. Leeches can be controlled using Dylox. Masoten is another trade name for dylox. The recommended rate of application is 1/2 ppm. This should be applied in a manner so it is thoroughly mixed in the ground. Recommened treatment for …

Kansas Predator Damage Control Program, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

The Extension Division is the off-campus arm of Kansas State University~ a land grant university functioning through 105 county Extension offices involving over 265 county Extension workers that are backed up by some 175 state and area subject matter specialists. Kansas is an agricultural state. The production of livestock in Kansas is an important industry to our state and nation.

Our predator damage control program is an educational effort directed at the goal of reducing livestock losses where possible on individual farms and ranches, in Kansas. Our program has been in existence since 1954. A very important aspect of our …

Coyote Denning As A Method Of Damage Control, Walden C. Lemm

Great Plains Wildlife Damage Control Workshop Proceedings

The coyote denning operation is a useful method in coyote control, both to control populations and to eliminate problem animals, but a thorough knowledge of coyote behavior prior to and during the denning season is essential for productive results.

Coyotes do not dig their own dens, but enlarge existing holes dug by other animals, often those dug by badgers. Coyote den holes are not difficult to distinguish from holes dug by smaller animals. Being long-legged animals, their den entrances are elongated vertically instead of being round like those of badgers and other short-legged animals.

Long Range Objectives Of The Federal Government In Coyote Management, James B. Ruch

Great Plains Wildlife Damage Control Workshop Proceedings

Introduction.

History.

Present Efforts to Change.

Research.

Interim Measures.

1973 Legislation.

State Actions Needed.

Conclusion.

An Assessment Of The Coyote Problem In The Great Plains States, Dale A. Wade

Great Plains Wildlife Damage Control Workshop Proceedings

It has now been 21 months since President Nixon's Executive Order #11643 was issued and there has been a complete annual reproductive cycle in the coyote population of the western states without any major influence by chemical controls. The use of mechanical controls, including non-lethal methods, and greater emphasis on removing only specific offending animals has been advocated during this time as a solution where coyotes prey on domestic animals. With this brief look back, what have been the results?

We do not have absolute data on coyote numbers and livestock depredations resulting from this change in coyote management programs. …

Autoionization Of He And Autodetachment Of He- Following Bombardment By H+, H2+, He+, And He Atoms, F. D. Schowengerdt, S. R. Smart, M. Eugene Rudd

M. Eugene Rudd Publications

Presented here are experimental results of a study of the systematics of electron emission from discrete states of He and He- as produced by H⁺, H₂⁺, He⁺, and He impacts. The results were obtained by energy analysis of the electrons emitted at angles of 10° to 160°. Projectile energies ranged from 20 to 150 keV. Differential and integrated cross sections are presented for emission of electrons from the 2s² (¹S), 2s2p(³P), the sum of the 2p² (¹D) and 2s2p(¹P) autoionizing levels of He, …

Chronic Toxicity Of A Copper, Cadmium And Zinc Mixture To The Fathead Minnow (Pimephales Promelas Rafinesque), John G. Eaton

United States Environmental Protection Agency: Publications

Fathead minnows were exposed to a series or concentrations of a copper, cadmium and zinc mixture during a 12.5 month chronic test in water of 200 mg 1^-1 total hardness. The metal concentrations in the mixture were selected on the basis of results obtained during previous chronic exposures to each of the metals individually in the same water. Strict summation of the chronic toxicities of the metals was not indicated when they were tested in combination. Toxic effects of the mixture attributable to copper appeared to be increased, but that attributable to cadmium was reduced. The effects thought to …

Captan Toxicity To Fathead Minnows (Pimephales Promelas), Bluegills (Lepomis Macrochirus), And Brook Trout (Salvelinus Fontinalis), Roger O. Hermanutz, Leonard H. Mueller, Kenneth D. Kempfert

United States Environmental Protection Agency: Publications

The toxic effects of capt an on survival, growth, and reproduction of fathead minnows (Pimephales promelas) and on survival of bluegiIIs (Lepomis macrochirus) and brook trout (Salvelinus fontinalis) were determined in a flow-through system. In a 45-week exposure of fathead minnows, survival and growth were adversely affected at 39.5 μLg/Iiter. Adverse effects on spawning were suspected but not statisticaIly demonstrated at 39.5 and 16.5 μLg/Iiter. The maximum acceptable toxicant concentration (MATC), based on survival and growth, lies between 39.5 and 16.5 μLg/liter. The lethal threshold concentration (LTC) derived from acute exposures was 64 μLg/liter, …

Chronic Effect Of Low Ph On Fathead Minnow Survival, Growth And Reproduction, Donald I. Mount

United States Environmental Protection Agency: Publications

Fathead minnows (Pimephales promelas Rafinesque) were continuously exposed to reduced pH levels of 4.5, 5.2, 5.9, 6.6 and 7.5 (control) during a 13-month, one-generation test. Survival was not affected, even at the lowest pH tested. Fish behavior was abnormal, and fish were deformed at pH 4.5 and 5.2. Egg production and egg hatchability were reduced at pH 5.9 and lower, and all eggs were abnormal. A pH of 6.6 was marginal for vital life functions, but safe for continuous exposure. Free carbon dioxide, liberated by the addition of sulfuric acid to reduce the pH, may have had an unknown …

Seismicity Preceding Moderate Earthquakes In California, Robert L. Wesson, William L. Ellsworth

United States Geological Survey: Staff Publications

Regional seismicity data have been examined to determine the nature of seismicity in the years preceding these moderate earthquakes in California: 1952 Kern County (M = 7.7), 1963 Watsonville (M = 5.4), 1964 and 1967 Corralitos (M = 5.0, 5.3), 1966 Parkfield-Cholame (M = 5.1, 5.5), 1968 Borrego Mountain (M = 6.4), 1969 Santa Rosa (M = 5.6, 5.7), and 1971 San Fernando (M = 6.4). In each instance the moderate earthquakes occurred in areas characterized by a relatively high level of small earthquake activity. In most cases the preceding activity in the area immediately surrounding the epicenter was high …

Projected Hartree Product Wavefunctions. Viii. Relationship Of Dods And Scf Orbitals For Be, Gordon A. Gallup

Gordon Gallup Publications

Projected Hartree product wavefunctions. VIII. Relationship of DODS and SCF orbitals for Be

Preliminary Interpretations Of Coyote Population Mechanics With Some Management Implications, Frederick F. Knowlton

Great Plains Wildlife Damage Control Workshop Proceedings

The need for control of coyote (Canis latrans) depredations and a simultaneous demand for recognition of the aesthetic and ecologic values of the species create a conflict in resource utilization that should be resolved through more intensive management. A coyote population model is proposed from current estimates of density, reproduction, population structure, and mobility. Densities of 0.5 to 1.0 coyote per square mile are frequently suggested, with occasional estimates of 4.0 or more per square mile. Reproductive rates fluctuate as functions of the proportion of females that ovulate, the average number of ova shed, and in utero viabilities. …

Decompositions Of Modules And Matrices, Thomas S. Shores, Roger Wiegand

Department of Mathematics: Faculty Publications

A canonical form for a module M over a commutative ring R is a decomposition M £ R/^ © • • • 0 #//„, where the Ij are ideals oiR and I x £ ••• £ /„.A complete structure theory is developed for those rings for which every finitely generated module has a canonical form. The (possibly larger) class of rings, for which every finitely generated module is a direct sum of cyclics, is also considered, and partial results are obtained for rings with fewer than 2^C prime ideals. For example, if R is countable and every finitely generated …

Extension Wildlife Damage Control In Iowa, Tom Berkley

Great Plains Wildlife Damage Control Workshop Proceedings

Introduction

History

Procedures

Results

Conclusion

Exposure To Media Alternatives, Jack Burke

Great Plains Wildlife Damage Control Workshop Proceedings

Media use should not be a half way activity done after everything else on your mind is taken care of. The key word is commitment--if you are not ready to give proper preparation which includes understand what each (newspaper, radio, TV, etc.) does best, then don't do anything. There is at least a certain minimum quality standard that must be met--anything less and media exposure can hurt you and your program rather than help you. Seek help. Then select the media to fit your time, money and inclination. Example: Even if you don't buy time--television properly done may cost much …

Proceedings Of The Great Plains Wildlife Damage Control Workshop- December 1973: Contents

Great Plains Wildlife Damage Control Workshop Proceedings

Cover Pages

Program Planning Committee

Registered Attendance

Preface

Table of Contents

A Brief History Of Extension Predator Control In Missouri, Dan F. Dickneite

Great Plains Wildlife Damage Control Workshop Proceedings

Missouri, like many of its neighbors, has long had to content with complaints of damage caused by predatory wildlife. Unlike some other states, however, in Missouri the control, management, restoration, etc. of all bird, fish and game and other wildlife resources of the state is vested in a Conservation Commission to an exclusive degree. Because of this Constitutional mandate, the Conservation Department in Missouri has been the agency primarily responsible for assisting farmers and ranchers with their various wild animal damage control problems. Poisons and explosive or chemical devices are not legal. This legal prohibition not withstanding, Missouri's relatively dense …

Summary, Dan F. Dickneite

Great Plains Wildlife Damage Control Workshop Proceedings

During this workshop we have heard from some of the leading animal damage control and livestock management specialists in the Great Plains and adjoining states. It appears that western states personnel will likely be involved in wild animal damage control to a greater extent than before as control activities are passed from federal to the separate state agencies--hopefully, with financial assistance for both implementation and research.

There is no widespread agreement on numbers or severity of damage, or on the best damage control techniques to use. What works in one area of the country will not necessarily work in another. …