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Biometrical Study Of Morphology And Development Of The Pennsylvanian Trilobite Ameura Sangamonensis (Meek And Worthen), Roger K. Pabian, J. A. Fagerstrom

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

Biometrical study of morphology and development in a sample of 100 cranidia, 94 pygidia, 26 free cheeks, and 9 complete specimens of the trilobite Ameura sangamonensis (Meek and Worthen) from the Bonner Springs Shale (Pennsylvanian; Missouri Series) in eastern Nebraska indicates that the dominant growth pattern was isometric. Evidence supporting this conclusion consists of rectilinear size relations among eight pairs of cranidial dimensions, three pairs of pygidial dimensions, and three pairs of dimensions of the free cheeks. Qualitative changes in pygidial morphology during development include a progressive decrease in prominence of the border, increasing width of the posterior border relative …

New Genera Related To The Genus Brephosceles Hull, 1934 (Acarina: Proctophyllodidae), Paul C. Peterson, Warren T. Atyeo

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

Five new genera are described; these and the included species are (type species listed first): Dichobrephosceles with Dermaleichus actitidis Canestrini, 1878 (=Brephosceles dolichocaulus Gaud and Mouchet, 1957, new synonymy), D. eroliae, new species (ex: Erolia alpina, England); Homeobrephosceles with Proctophyllodes (A lloptes) discosurus Trouessart, 1886, Brephosceles orthothrix Gaud and Mouchet, 1957; Onychalloptes with Proctophyllodes (Alloptes) microphaeton Trouessart, 1885, Alloptes minutus Trouessart, 1899; Aramolichus with Aramolichus foliatus, new species (ex: Aramus guarauna, Bolivia); Psilobrephosceles with Dermalichus ortygometrae Canestrini, 1878. Species included in the genus Brephosceles (s.s.) are listed; species transferred to Brephosceles are: Proctophyllodes (Pterocolus) fiagellifer discursus Trouessart, 1885; Pterocolus lambda …

Water Levels In Observation Wells In Nebraska, 1967, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Test 977: David Brown Selectamatic 990 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 976: David Brown Selectamatic 1200 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 975: Minneapolis-Moline G1000 Vista (Lpg), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 974: Minneapolis-Moline G1000 Vista (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 973: Ford 8000 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

The Prairie Naturalist Volume 1, No. 2. May, 1969

The Prairie Naturalist

EDITORIAL: North Dakota's Naturalist-at-Large ▪ Paul B. Kannowski

WETLAND VEGETATION OF THE TURTLE MOUNTAINS, NORTH DAKOTA ▪ Robert L. Burgess and Dennis T. Disrud

RAPID METHOD OF FILTRATION OF MARSH WATERS ▪ V. A. Adomaitis and J. A. Shoesmith

NOTES

Additional distribution records of the false map turtle and the short-horned lizard in North Dakota ▪ Dennis J. Gemmell

Summer record of the snowy owl in North Dakota ▪ Donald R. Johnson

Long-billed curlews in LaMoure County, North Dakota ▪ Gary L. Krapu

Groundwater Data Polk County, Nebraska, F.A. Smith, E.C. Weakly

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Test 972: Oliver 1950-T Diesel 4wd, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Studies In The Ecology And Management Of Prairie Grouse, Leonard Sisson

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

The purpose of this paper is (1) to present the scope of research being conducted by the Nebraska Game and Parks Commission on prairie grouse, the sharp-tailed grouse and greater prairie chicken, and (2) to discuss preliminary findings of one aspect of this research - characteristics of nesting and brooding habitat of sharp-tailed grouse.

Lattice Dynamics And Second-Order Raman Spectrum Of Csf, John R. Hardy, Arnold Karo

John R. Hardy Papers

Results are presented for a precise calculation, based on the deformation dipole model with short-range repulsive interactions between second-neighbor negative ions, of the normal-mode frequency distribution of CsF. The extreme properties of this crystal are reflected in the unusual appearance of the distribution. From these results, we can also predict the form of the second-order Raman spectrum of CsF for two alternative assumptions regarding the Raman polarizability tensor. Both spectra are unusual in that they consist almost entirely of very sharp, clearly separated lines. Furthermore, the spectra corresponding to these two assumptions are very different and should be easily distinguishable …

Test 970: International Farmall 856 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 971: International Farmall 1256 Turbo (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Far Infrared Properties Of Lattice Resonant Modes. I. Isotope Shifts, Roger D. Kirby, I.G. Nolt, R.W. Alexander Jr., A.J. Sievers

Roger Kirby Publications

The frequency shift of a lattice resonant mode associated with the isotopic substitution of an impurity ion has been measured for NaCl: Cu⁺, KI: Ag⁺, and KBr: Li⁺. For all three systems, the experimental frequency shifts can be described satisfactorily by an Einstein oscillator representation for the resonant mode with the oscillator mass set equal to the impurity-ion mass. The model of Benedek and Nardelli and also Klein does not account for the experimental results of NaCl: Cu⁺ or KBr: Li⁺. The inclusion of anharmonic forces does improve the agreement between …

A Proof Of Newton's Power Sum Formulas, J. A. Eidswick

Department of Mathematics: Faculty Publications

For a polynomial P(z) = α₀ + α₁z + ... + α_nzⁿ = α_n (z – z₁) (z – z₂) ... (z – z_n), the power sums S_m = ∑ ⁿ _k=1 z^m _k, m = 1, 2, ... , can be calculated from the formulas ...

Distributional Changes And Interaction Between Prairie Chickens And Sharp-Tailed Grouse In The Midwest, Paul A. Johnsgard, Robert E. Wood

Papers in Ornithology

The "prairie grouse" of North America present an interesting example of the effects of human activities on breeding distribution patterns of birds, with resulting changes in geographic distribution and spacial isolation. Thus, the Heath Hen (Tympanuchus cupido cupido) was one of the most familiar birds to the early colonists, who relied heavily on it for food. Ultimately, loss of habitat caused the Heath Hen's extinction. When the vast tall-grass prairies west of the Appalachians were settled, Greater Prairie Chickens (T. c. pinnatus) were probably more plentiful, and greatly increased as woods were cleared and grain crops supplemented native grasses. With …

Electrical Conductivity Of Potassium Chloride, Robert Fuller, Michael H. Reilly, Charles L. Marquardt, John C. Wells

Robert G. Fuller Publications

The electrical conductivity of potassium chloride is discussed within the framework of a four-defect model of the crystal. The four defects are mobile anion and cation vacancies and immobile divalent cation impurities and divalent cation impurity-cation vacancy complexes. The Teltow formulation of the four-defect mode1 fails to describe precisely the measured electrical conductivity of KCl over the entire intrinsic and extrinsic range.

The Prairie Naturalist Volume 1. No.1. March 1968

The Prairie Naturalist

EDITORIAL: Another Milestone ▪ John T. Lokemoen

NESTING OF THE COMMON SNIPE IN NORTH DAKOTA ▪ Robert E. Stewart and Harold A. Kantrud

SCIENCE WRITING — A PROBLEM ▪ Soren O. Kolstoe

INSECTICIDES: A DOUBLE-EDGED SWORD ▪ Richard D. Urban

NOTES

Why I like the Badlands ▪ Wayne Hecker

White-faced ibis in McIntosh County, North Dakota ▪ Harold F. Duebbert

Cinnamon teal observations in North Dakota ▪ A. T. Klett and John T. Lokemoen

Trumpeter swan in Kidder County, North Dakota ▪ Lewis M. Cowardin and James C. Bartonek

Specimen records of greater scaup ▪ Charles W. Dane and Harold …

Projected Hartree Product Wavefunctions, Gordon A. Gallup

Gordon Gallup Publications

A method for performing a restricted configuration interaction calculation on atoms or molecules based on the use of Young operators from the symmetric groups is discussed and its relation to some other types of calculations is pointed out. The method in its most general form can be said to be an extension of the independent particle approach which represents the wavefunction in terms of the n best possible one-particle orbitals for the n-particle system. Illustrations are given for the hydrogen molecule, the helium atom, and the allyl radical. ©1968 American Institute of Physics

Agroclimatic Calendar For Nebraska, R. E. Neild

School of Natural Resources: Faculty Publications

Crops are planted so growth, development and harvest correspond closely to the season most favorable for yield and quality. With exception of fall-seeded small grains and some forages, most Nebraska crops are planted in the spring when temperature and precipitation are increasing.

Stratigraphy Of Chugwater Group (Triassic) East Side Of Bighorn Mountains, Wyoming And Montana, Robert C. Mclellan

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

The Chugwater Group (Triassic), on the east side of the Bighorn Mountains of Wyoming and Montana, forms a narrow outcrop band of hogbacks. Four redbed formations are included in the Chugwater. From base to top they are: 1) Red Peak, 2) Crow Mountain, 3) Jelm, and 4) Popo Agie. The Chugwater is disconformably underlain by t];ie Goose Egg Formation (Permian) and unconformably overlain, from south to north, by the Sundance, Gypsum Spring, and Piper Formations of Jurassic Age.

The rocks of the Chugwater, in order of abundance, are: siltstone, sandstone, claystone, conglomerate, limestone, dolomite, and gypsum. Binocular microscope studies were …

Business In Nebraska #281, February 1968, Dorothy Switzer, E. L. Burgess

Business in Nebraska

Exports of Nebraska Manufacturers (Dorothy Switzer)

Total exports of manufactured goods from Nebraska amounted to almost 55 million dollars in 1966, according to data revealed recently in the revised published report of a study made by the Bureau of the Census of the U.S. Department of Commerce. Figures from Nebraska fully confirm the spectacular increase in exports of the state's manufactured products reported in the August, 1967, issue of Business in Nebraska, and based on data collected in a Bureau of Business Research survey of a sample of Nebraska manufacturers. The national study also corroborates the local survey as …

Relevance And Higher Education: Proceedings Of The Third Annual Meeting Of The National Collegiate Honors Council, 1968, Walter D. Weir

National Collegiate Honors Council Monographs

The papers in this volume were presented at the third annual meeting of the National Collegiate Honors Council at the Olympic Hotel in Seattle, Washington, October 18-20, 1968. The papers indicate our focus on the problems of the relevance of curricula to learning and the relevance of higher education to the world. Black and white students alike urged us to make our programs, our curricula, and our concerns more relevant to the moral and social issues of our time, more relevant to a truly liberal education.

Contents

Preface

Chapter 1- Relevance: An Introduction • Walter D. Weir

Chapter 2- And …

Some Ecological Observations On The Fathead Minnow, Pimephales Promelas, In The Alkaline Waters Of Nebraska, D. B. Mccarraher, Robert Thomas

Nebraska Game and Parks Commission: Staff Research Publications

Populations of the fathead minnow, Pimephales promelas, were apparently common throughout the sandhills region of Nebraska, prior to the appearance of the first pioneers, for Aughey (1880) listed the species as part of the native fauna. Current data relating to the distribution (Figure 1) and gross ecology of the species throughout the sandhills, was first collected in 1954 by the authors, with continuous observances recorded since that year. The fathead minnow is a common species throughout the northern great plains and appears to reach its greatest abundance in the shallow, alkaline lakes of Nebraska. Our investigations over the past …

Distribution And Mortality Of Saskatchewan-Banded White-Fronted Geese, Harvey W. Miller, Alex Dzubin, John T. Sweet

Nebraska Game and Parks Commission: Staff Research Publications

At its annual spring meeting in 1959 the Technical Committee of the Central Flyway Council recognized a decreased population of the white-fronted goose (Anser albifrons). The recorded harvest in Canada and the United States had exceeded the estimated wintering population in some years. After summarizing records for the Central and Mississippi Flyways the Committee found them inadequate for management and to help fill this void, recommended banding on local concentration areas including Saskatchewan.

Ecological Relationships Of Wetlands To Ring-Necked Pheasants In Nebraska, William L. Baxter, Carl W. Wolfe

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

Ecological relationships of ring-necked pheasants with rainwater basins were studied on a nine-section study area in south-central Nebraska.

Nesting studies conducted from 1960 through 1964 revealed the importance of vegetation complexes associated with wetlands as nesting cover. During the five-year period, 25 percent of all nests were initiated in this covertype, and 25 percent of all chicks were produced in this covertype. The wetlands also provided high quality brooding, loafing, roosting, and winter cover.

Human activities have destroyed 83 percent of the 3,909 wetlands in the rain basin area. The greatest loss occurred in smaller basins. Acreages in the basins …

Optimum Spacing Of Square And Circular Coil Pairs, M. Eugene Rudd, J. R. Craig

M. Eugene Rudd Publications

In a previous note Crownfield pointed out that the magnetic field along the axis of a coil pair is within a prescribed uniformity over a substantially longer region than that given by the Helmholtz spacing if a somewhat larger spacing is used. In the note, values of coil spacing and length of uniform field region are given for a few desired uniformities, but only for a particular "thick" coil pair, i.e., one with cross-sectional dimensions comparable to the spacing. Many coil pairs, such as those used to annul the earth's field over the region occupied by some apparatus, have cross-sectional …

Excitation Of Auto-Ionizing Levels In Neon By Ion Impact, A. K. Edwards, M. Eugene Rudd

M. Eugene Rudd Publications

Auto-ionizing states of neutral and singly ionized neon were produced by bombarding neon gas with H⁺, He⁺, and Ne⁺ ions in the 150-250-keV energy range. Sixty lines in the electron spectrum were found, of which 43 have been classified into 13 Rydberg series. Ten of these series were previously unreported. Auger electrons from one- and two-vacancy states are also reported. Relative intensities of all transitions are listed.