Physical Sciences and Mathematics Commons^™

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1983

Conservation and Survey Division

No abstract provided.

The Probe, Issue 27 - December 1982

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE National Animal Damage Control Association December, 1982
BROMETHALIN
Vampire bat-rabies problem on cattle in Latin America.
BIRDS CELEBRATE A SILENT FOURTH OF JULY
Problems with native deer on the exotic game preserve in connection with the Florida deer hunt fiasco.
PEST CONTROL magazine: Do Animals Have Rights?
Kitty Poo Cat Potty.
FUR HARVESTING AND PREDATOR CONTROL
LETTERS TO YE ED
RABIES

Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt

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

No abstract provided.

The Prairie Naturalist Volume 14, No. 4. December 1982

The Prairie Naturalist

THE MICROBIAL AND VEGETATIONAL RESPONSE TO FIRE IN THE LYNX PRAIRIE PRESERVE, ADAMS COUNTY, OHIO ▪ A. E. Annala and L. A. Kapustka

ASPECTS OF BEHAVIOR IN FREE-RANGING BARBARY SHEEP (AMMOTRAGUS LERVIA) G. G. Gray and C. D. Simpson

HOME RANGES OF MULE DEER BUCKS IN THE TEXAS PANHANDLE ▪ B. H. Koerth and F. C. Bryant

DETERMINING SEX OF PLAINS POCKET GOPHERS BY INCISOR WIDTH ▪ R. M. Case and A. B. Sargeant

BOOK REVIEWS:

On Counting Birds ▪ S. A. Mikol

Freshwater Marshes ▪ R. M. Kaminiski

NOTICE TO AUTHORS ▪ Editor

INDEX TO VOLUME 14 …

Measurement Of Spin-Exchange Effects In Electronhydrogen Collisions: Further Studies Of Impact Ionization, Timothy J. Gay, G. D. Fletcher, M. J. Alguard, V. W. Hughes, P. F. Wainwright, M. S. Lubell

Timothy J. Gay Publications

Using a Fano-effect polarized electron source and a state-selected thermally dissociated hydrogen beam, we measured the interference between the direct and exchange scattering amplitudes for electron-impact ionization of atomic hydrogen between 14.1 and 30.3 eV. We report the data from these measurements and the results of corrections applied to previously published data.

Mass And Energy Exchanges Of Soybeans: Microclimate-Plant Architectural Interactions, Dennis D. Baldocchi

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

No abstract provided.

Water Current, Volume 14, No. 6, November/December 1982

Water Current Newsletter

Water Seminars to Begin in January
1983 Nebraska Water Conference
Irrigation Short Course in January
Research Review: Water and Energy Conservation Using Center Pivot Irrigation and Reduced Tillage Systems
Paper Presented on Nitrates in Groundwater
NWRC Conference Held in Kearney
Water Resources Expertise Directory Compiled
Water Financing Needs Discussed
Call for Papers
Editor Resigns

Effect Of Anisotropy Strength On Phase Transitions In Random Anisotropy Magnets, Michael J. O'Shea, David J. Sellmyer

David Sellmyer Publications

ac susceptibility and magnetization measurements are reported for a number of Gd and Tb based glasses. Raman magnetic anisotropy effects are observed in both the Gd and Tb glasses. The Gd glasses show a transition to an infinite susceptibility state and in some cases a further transition to an hysteretic state at low temperatures in which field-cooling and magnetic viscosity effects are observed. The Tb glass shows only a small speromagnetic peak at low temperatures. The ratio of anisotropy strength to exchange was varied in the Gd glasses by alloying, and the effect of this on the resulting magnetic states …

Magnetic And Crystallization Studies Of Splat-Cooled Praseodymium–Gallium–Iron Alloys, George C. Hadjipanayis, S.H. Woollins, R.C. Hazelton, K.R. Lawless, R. Prestipino, David J. Sellmyer

David Sellmyer Publications

Magnetic hysteresis and crytallization studies are reported for several (Pr₈₀Ga₂₀)_100-xFe_x metallic glasses, where 30≤x≤80. Thermomagnetic data show the presence of two magnetic phases which are probably responsible for the relatively high coercive fields observed at cryogenic temperatures. As the iron content of the sample is increased, the magnetic moment increases substantially but the coercivity is drastically reduced. In (Pr₈₀Ga₂₀)₇₀Fe₃₀ the observed coercive fields are strongly temperature dependent indicating strong thermal activation effects which are consistent with the magnetic viscosity measurements. The hard magnetic properties disappear after …

Magnetic Properties Of Hydrides Of Rare Earth–Transition Metal Glasses, C.G. Robbins, Z.D. Chen, J.G. Zhao, Michael J. O'Shea, David J. Sellmyer

David Sellmyer Publications

The effect of hydrogen on magnetic properties of metallic glasses of the form (R₈₀Ga₂₀)_1-xT_xH_y where R=Pr, Nd, Gd, Tb, Er; T=Cr, Fe, Co, B; 0≤x≤0.3 and 0≤y≤1.7 is reported. The anisotropic rare earth glasses without H all exhibit speromagnetic (spin-glass-like) transitions and the effect of hydrogen, in most cases, is to lower the peak in χ_ac significantly but leave T_C relatively unchanged. For the Gd glass with T=Fe and x=0.1 the introduction of H at the level y=0.55 causes a large decrease in T_C and a significant increase …

Resistivity And Galvanomagnetic Coefficients Of Iron Group Metallic Glasses With Chromium Substitutions, J.R. Long, George C. Hadjipanayis, David J. Sellmyer

David Sellmyer Publications

Magnetic field and temperature dependences of the electrical resistivities and Hall resistivities were measured for the metallic glass ferromagnets Fe₁₃Ni₆₀Cr₅Si₁₀B₁₂, Fe₃₇Ni₃₆Cr₅Si₁₀B₁₂, Fe₈₁B_13.5Si_3.5C₂, and Fe₅Co₇₅Si₁₅B₅. Resistance minima and magnetoresistivity of the FeNiCr glasses have been found to be consistent with a modified Kondo model of low temperature scattering. The Hall resistivities are positive and large. The spontaneous Hall coefficients of the FeNiCr glasses are in …

Electron Transport In Tb- And Pr-Based Metallic Glasses, S.G. Cornelison, David J. Sellmyer

David Sellmyer Publications

Electrical resistivity measurements are reported on several metallic glasses based on Pr and Tb, and Ga and various transition metals as the glass formers. In general negative temperature coefficients were observed and these are discussed in terms of the extended Ziman theory and the tunneling or localization theory. Low temperature structure in the resistivity can be understood with the coherent exchange scattering model of Asomoza et al. Journal of Applied Physics is copyrighted by The American Institute of Physics.

The Probe, Issue 26 - November 1982

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE National Animal Damage Control Association November, 1982
THE STATE OF THE UNION
Deer problem in the Everglades
Survey on mammal problems at airports
ENDRIN IN ORCHARDS
Rupert Beaver Farms (Heyburn, ID) had to declare bankruptcy as it was costing too much
Wildlife Legislative Fund of America (WLFA)
ERADICATE, SUPPRESS, DESTROY by Jim Doherty
A 14-year old boy herding his father's goats in Natal, South Africa was suddenly surrounded by a python.
Using donkeys to protect sheep from dogs and coyotes.
New Mexico Cattle Grower's Association
Preliminary trials of various commercial ultrasonic rodent repellent devices were unsuccessful.
OL' TIMER'S …

Amorphous FeXNb100-X With Wide Composition Range, C.L. Chien, K.M. Unruh, Sy_Hwang Liou

Sy-Hwang Liou Publications

Sputtered amorphous Fe_xNb_100-x (30 ≤ x ≤ 85) has been studied by Mössbauer spectroscopy and resistivity measurements. The samples with x< 60 are nonmagnetic. The magnetic ordering temperatures of the samples with x ≥ 60 increase with Fe content. Small magnetic hyperfine fields are observed in the magnetic samples, consistent with the small Fe moments measured. The resistivity of the magnetic and nonmagnetic samples show different temperature dependences. Only the magnetic samples exhibit a resistivity minimum, indicating a Kondo-like mechanism.

Theoretical Study Of The Long-Wavelength Optical Properties Of Nacl, Kcl, Kbr, And Ki, John R. Hardy, A. M. Karo

John R. Hardy Papers

We have made a detailed theoretical study of the long-wavelength absorption of NaCl, KCl, KBr, and KI, associated with two-phonon difference processes caused by third-order anharmonic terms in the lattice potential energy. It was found that a simple nearest neighbor approximation to the anharmonicity, combined with lattice-dynamical eigenfrequencies and eigenvectors generated with the use of a deformation dipole model, can generally account for most of the observed absorption. This agreement was obtained without the use of any disposable parameters, as the form of the first-neighbor potential was predetermined. It was also found that discrepancies between theory and experiment can generally …

Water Current, Volume 14, No. 5, September/October 1982

Water Current Newsletter

Research Framework Now Available
Overview Highlights Project
Computer Used to Irrigate
Conservation Tillage Studied
Aiken Says Law Vague
Sandhills NebGuides
OWRT Funds Transferred
Federal Funding Possibilities
New Staff Members

Thresholds In Radiobiology, Robert Katz, Werner Hofmann

Robert Katz Publications

Interpretations of radiation effects frequently call upon the word “threshold.” In this letter we wish to explore the meaning of this word, its relationship to the fundamental character of radiation effects, and to the question of perception. We make no distinction between “stochastic effects” and “non-stochastic effects” (ICRU 1971, ICRP 1977). As conceived here, all interactions of radiation with matter are probabilistic. At the cellular or molecular level, where most radiation effects originate, the statistical nature of ionization and excitation events gives rise to considerable fluctuation in the number of these primary events in sensitive sites. Whatever the array of …

Boundary Approximations For Implicit Schemes For .One-Dimensional Inviscid Equations Of Gasdynamics, Helen Yee, R. M. Beam, R. F. Warming

United States National Aeronautics and Space Administration: Publications

The applicability to practical calculations of recent theoretical developments in the stability analysis of difference approximations is examined for initial boundary-value problems of the hyperbolic type. For the numerical experiments the one-dimensional inviscid gasdynamic equations in conservation law form are selected. A class of implicit schemes based on linear multistep methods for ordinary differential equations is chosen and the use of space or space-time extrapolations as implicit or explicit boundary schemes is emphasized. Some numerical examples with various inflow-outflow conditions highlight the commonly discussed issues: explicit vs implicit boundary schemes, and unconditionally stable schemes.

1981 Oersted Medal: I. I . Rabi And Melba Newell Phillips Award 1982, Robert Fuller

Robert G. Fuller Publications

This award is given for exceptional contributions to physics education through leadership in the American Association of Physics Teachers. The award will not be given annually, but occasionally to an outstanding physics educator.

The Prairie Naturalist Volume 14, No. 3. September 1982

The Prairie Naturalist

FECAL pH OF DESERT AND EASTERN COTTONTAIL RABBITS IN TEXAS ▪ R. J. Warren and K. T. Scribner

NESTING OF THE AMERICAN AVOCET IN NORTH DAKOTA ▪ J. G. Sidle and P. M. Arnold

REVISED CHECKLIST OF NORTH DAKOTA BIRDS ▪ C. A. Fannes and R. E. Stewart

THE EFFECT OF WEATHER FACTORS ON AUDUBON CHRISTMAS BIRD COUNTS L. L. Falk

NOTES:

Additional Nest Record for Red-breasted Nuthatch in North Dakota ▪ R. Hopkins

A Henslow's Sparrow in North Dakota ▪ R. B. Renken and J. J. Dinsmore

First Documented Record of the Moose in South Dakota ▪ D. A. …

The Probe, Issue 25 - September 1982

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE National Animal Damage Control Association September, 1982
wolf recovery project
The Florida Game & Fresh Water Fish Commission announced plans to hold a hunt to reduce the Everglades deer herd
OUR THOUGHT FOR THE DAY FOR THE BALANCE OF NATURE WORSHIPERS
The Army has found albino rats are cheaper to rear and train than dogs and may be more effective in detecting TNT in booby traps, bombs, and land mines.
"Western Regional Coordinating Committee" concerned with predator control.
U.S. environmental Protection Agency (EPA)
S.B. #2239, the antitrap bill
RODENT CONTROL GETS THE AXE
nominations for the offices to …

Temporary Negative Ions In The Chloromethanes Chcl2F And Ccl2F2: Characterization Of The Σ* Orbitals, Paul Burrow, A. Modelli, N.S. Chiu, K.D. Jordan

Paul Burrow Publications

The electron transmission spectra of chlorometers CHCl₂F and CCl₂F₂ are presented. The electron affinities are evaluted compared with thoses calculated using self-consistent field methods.

Gully, Scour Hole, And Pothole Development At The Base Of The Gering Formation (Miocene?), Southeastern Banner County, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Several sediment-filled paleovalleys belonging to the Arikaree Group of Miocene (?) age occur in southeastern Banner County, Nebraska. One gully and a main paleovalley exhibit, respectively, erosional features like those in modern gullies in the area and like those on the bedrock floors of modern straight streams carrying an appreciable sediment load. Scour holes and a pothole on the valley floor of the main paleovalley are similar to those produced experimentally on the bed of a straight stream.

Early History Of The Atlantic Ocean And Gas Hydrates On The Blake Outer Ridge: Results Of The Deep Sea Drilling Project Leg 76, Robert E. Sheridan, Felix M. Gradstein, Leo A. Barnard, Deborah M. Bliefnick, Dan Habib, Peter D. Jenden, Hideo Kagami, Everly M. Keenan, John Kostecki, Keith A. Kvenvolden, Michel Moullade, James Ogg, Alastair H.F. Robertson, Peter H. Roth, Thomas H. Shipley, Larry Wells, Jay L. Bowdler, Pierre H. Cotillon, Robert B. Halley, Hajimu Kinoshita, James W. Patton, Kenneth A. Pisciotto, Isabella Premoli-Silva, Margaret M. Testarmata, Richard V. Tyson, David K. Watkins

Department of Earth and Atmospheric Sciences: Faculty Publications

Leg 76 of the Deep Sea Drilling Project achieved two major scientific objectives. The first objective was met at Site 533, where on the Blake Outer Ridge, gas hydrates were identified by geophysical, geochemical, and geological studies. Gas-hydrate decomposition produced a volumetric expansion of 20:1 of gas volume to pore-fluid volume; this expansion exceeded by about a factor of four the volume of gas that could be released from solution in pore water under similar conditions. The gas hydrate includes methane, ethane, propane, and isobutane but apparently excluded normal butane and higher molecular weight hydrocarbons as predicted from gas hydrate …

Expected Mean Squares, Richard M. Engeman

USDA Wildlife Services: Staff Publications

An interactive program for calculating the expected mean squares for balanced designs has been developed for use on desktop and minicomputers, where it would be most convenient for the typical applications of the consulting statistician. The theoretical expected mean squares are calculated from the ANOVA model; hence, data are not utilized.

The Probe, Issue 24 - August 1982

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
1080 Registration Hassle
How to Write Your Congressman
NADCA Predator Control Meeting
Health Hazards from Pigeons, Starlings, and English Rats and Mice
Methods of treating snake bite
Recent Reading Materials
Anti-Trap Bill – S.B. 2239
Permits to import or export wildlife
Letters to the Editor
Election Time

Intermediate-Band Photometry In The Open Cluster Ngc 6664, Edward G. Schmidt

Edward Schmidt Publications

Four-color and Hβ photometry is given for early-type stars in the open cluster NGC 6664. From these data the true distance modulus is found to be 10.7 and the reddening is found to range from E (b – y) = 0.48 to 0.63 across the cluster. The distance modulus agrees well with some values from the literature, but the present color excesses are about 0.1 mag larger than published values. There are two or perhaps three blue stragglers in the cluster and its age is estimated to be 46 × 10⁶ yr.

New Perspectives On Electron Correlations, Anthony F. Starace

Anthony F. Starace Publications

Two formulations for describing electronic excitations developed by Fano and his school are reviewed. The transition matrix formulation of atomic photoionization has provided new perspectives on the well-known random phase approximation and on its relation to configuration interaction. The hyperspherical coordinate approach to two electron states and collision processes has provided new perspectives on the classification of two-electron excitation channels and on the evolution of highly excited electronic states.

Water Current, Volume 14, No. 4, July/August 1982

Water Current Newsletter

Platte River Forum Develops Model
Update on Fed Funds
Pollution Manual Ready
Dee Creek Study Over
Farewells
Paper Wins ASAE Award
NU Manual Wins Award
Recharge Studied at Lake
ET Program Available
NWRC at Conference
Research Review: Improvement of Irrigation Scheduling Techniques for Corn With Variable Crop Maturity Range, Plant Population and Water Supply Availability.

Nebraska's Platte River: A Graphic Analysis Of Flows, Ray Bentall

Conservation and Survey Division

WSP-53