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Muskrat Damage Control, James E. Miller

Great Plains Wildlife Damage Control Workshop Proceedings

Muskrat control, like any type of vertebrate pest control, is not an easy task. It requires not only practical effective methods, but a diligent effort, as well. When speaking of muskrat control, we are not implying total eradiction, because, first of all, it would not be possible, and secondly, in most areas other than agricultural croplands, they are not considered a pest.

Management Of Four Alfalfa Varieties To Control Damage From Potato Leafhoppers, W. R. Kehr, R. L. Ogden, J. D. Kindler

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The main purpose of this study was to obtain information on forage yield and quality of four alfalfa (Medicago sativa L.) varieties that differed in level of resistance to potato leafhopper (Empoasca fabae Harris) yellowing, when cut at three stages of growth in the second and third cuttings in field plots, with and without insecticide application. The stages of growth were bud, 1/10, and full bloom. Other purposes included study of the same varieties in field cages manually infested at 20, 40, and 60 adult leafhoppers/square yard, and in supplemental cuttings of field plots under high natural infestation …

Agricultural Experiment Station News December 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – NOVEMBER 1975

89th Annual Report Of The Nebraska Agricultural Experiment Station

Agricultural Research Division: News and Annual Reports

Contents:
Foreword
Administration and Staff
Nebraska Agricultural Experiment Station
Research Projects
Experiment Station Publications
Publications of the Staff
Report of Income and Expenditures

Separation Of Spores And Parasporal Crystals Of Bacillus Thuringiensis In Gradients Of Certain X-Ray Contrasting Agentsseparation Of Spores And Parasporal Crystals Of Bacillus Thuringiensis In Gradients Of Certain X-Ray Contrasting Agents, Eugene S. Sharpe, Kenneth W. Nickerson, Lee A. Bulla Jr., John N. Aronson

Papers in Microbiology

Spores and parasporal crystals of Bacillus thuringiensis can be separated at moderate centrifugation speeds (10,000 to 12,000 rpm) in gradients of Renografin or sodium diatrizoate.

Review Of The Gilberto Freyre Reader, Elizabeth Wilhelmsen

Spanish Language and Literature Papers

It is difficult to introduce Gilberto Freyre, one of Brazil's most outstanding and well-known contemporary thinkers, because of the multi-faceted nature of his understanding and the versatility of his pen. Being both scientist and humanist, critic and artist. Freyre is perhaps best recognized as a sociologist and historian of his native land. However, he defies classification even in this last role as is well revealed in his essay. "Como e Porque sou e nao sou Sociologo" ("How and Why I Am and Am Not a Sociologist"). Criticizing the conventional hermetic specialization and unbending insistence upon objectivity, he asserts that "man's …

Contents Of Chlorophylls A And B In Chlorophyll-Deficient Mutants Of Sweetclover, James E. Specht, Francis A. Haskins, H. J. Gorz

Department of Agronomy and Horticulture: Faculty Publications

Leaf extracts from twelve chlorophyll-deficient mutants of sweetclover (Melilotus alba Desr.) were compared spectrophotometrically and chromatographically with extracts from normal plants to determine contents of chlorophylls a and b Total chlorophyll contents in cotyledons and leaves of all mutants were significantly lower than those in corresponding tissues of normal plants. Chlorophyll contents were generally higher in later emerging leaves of both normal and mutant plants. Chlorophyll alb ratios in first trifoliolate leaves were similar to normal in mutants ch₇ and ch₈, higher in mutants ch₈, ch₉, ch₁₀, and ch_{11 …}

Lipid Metabolism During Bacterial Growth, Sporulation, And Germination: Differential Synthesis Of Individual Branched And Normal-Chain Fatty Acids During Spore Germination And Outgrowth Of Bacillus Thuringiensis, Kenneth W. Nickerson, Lee A. Bulla Jr., Timothy L. Mounts

Papers in Microbiology

The biosynthesis of individual branched- and normal-chain fatty acids during Bacillus thuringiensis spore germination and outgrowth was studied by comparing pulsed and continuous labeling of these fatty acids with [U- ¹⁴C ]acetate. The relative specific activity of each fatty acid varies with time as the cell progresses through outgrowth. However, fatty acid synthesis does occur in two distinct phases. Upon germination, acetate is incorporated only into the iso-isomers i-C₁₃, i-C₁₄, and i-C₁₆; no normal or anteiso synthesis occurs. Subsequent to T₃₀, the full complement of branched- and normal-chain homologues is formed …

The Prairie Naturalist Vol. 7, No.4. December 1975

The Prairie Naturalist

COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens

REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat

A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall

BOOK REVIEW

Autumn Hawk Migrations ▪ P. B. Hofslund

Whole Issue Nebraska Bird Review (December 1975) 43(4)

Nebraska Bird Review

Table of Contents

Spring Waterfowl Migration in Lancaster County - 1970.................. 70

Merlin Nest in Nebraska ..................78

A Groove-billed Ani Seen Again in Nebraska.................. 79

A Brown Creeper's Nest in Nebraska.................. 80

First Pleistocene Record of the Golden Eagle from the Central Great Plains.................. 84

Notes.................. 84

Index of Volume XXX XIII ..................85

Optimal And Suboptimal Estimation In Differential Pcm And Adaptive Predictive Coding Systems, Jerry Gibson

Department of Electrical and Computer Engineering: Faculty Publications

Both differential pulse code modulation (DPCM) and adaptive predictive coding (APC) systems have been used somewhat successfully for low date rate digital voice transmission. A DPCM system has as its goal the removal of signal redundancy prior to transmission by a linear prediction of the incoming signal with a weighted combination of past signal estimates. The error in the prediction process is then quantized and transmitted to the receiver. An identical prediction loop is used at the receiver to reinsert the redundancy, and hence, to reconstruct the speech signal. Both the quantizer and predictor may or may not be adaptive.

Sciurus Richmondi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sciurus richmondi Nelson, 1898
Richmond's Squirrel

Sciurus richmondi Nelson, 1898:146. Type locality Escondido River, 50 mi. above Bluefields, Nicaragua (Nelson, 1899:100).

Context and Content
Order Rodentia, Family Sciuridae. The genus Sciurus is widely distributed in both the Old and New worlds. S. richmondi is a monotypic species closely related to S. granatensis; both species are members of the subgenus Guerlinguetus.

Dipodomys Phillipsii, J. Knox Jones Jr.

University of Nebraska State Museum: Mammalogy Papers

Dipodomys phillipsii Gray, 1841
Southern Banner-tailed Kangaroo Rat

Dipodomys phillipsii Gray, 1841:522. Type locality "near Real del Monte," Hidalgo.
Dipodomys ornutus Merriam, 1894:110. Type locality Berriozi-bal, Zacatecas.
Dipodomys perotensis Merriam, 1894:111. Type locality Perote, Veracruz.

Sturnira Thomasi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomasi de la Torre and Schwartz, 1966
Guadeloupe Yellow-shouldered Bat

Sturnira thomasi de la Torre and Schwartz, 1%6:299. Type locality Sofaia, 1,200 ft., island of Guadeloupe, Lesser Antilles.

Context and Content: Order Chiroptera, Family Phyllostomatidae, Subfamily Stenoderminae. The genus Sturnira contains about 10 species and is confined to the tropical and subtropical regions of the New World. Sturnira thomasi is a monotypic species.

Cultural Pressure On Sex Differences, Patricia Draper

Department of Anthropology: Faculty Publications

This paper suggests that sex differences in the behavior of children exist but are not necessarily intensified under certain cultural conditions. Under conditions of culture change to a sedentary economy, certain elements of male and female differentiated behavior are exploited in the process of increasing sex differentiation.

Effect Of Uniaxial Stress On The Unstable A1 (To) Phonon In Ferroelectric Gadolinium Molybdate, B.N. Ganguly, Frank G. Ullman, Roger D. Kirby, J.R. Hardy

Roger Kirby Publications

The effect of uniaxial stress along [100] on the unstable A₁ (TO) phonon, 47 cm^-1 at room temperature, in ferroelectric (<159°C) gadolinium molybdate has been studied by Raman scattering at 138, 141, 146, and 155°C. An increase in peak frequency and narrowing of the line shape is observed with increasing stress. The data are analyzed by fitting to a Lorentzian line shape. The force-constant parameter is insensitive to both stress and temperature, whereas the damping constant decreases nonlinearly with stress, approaching an asymptotic value at high stress.

Reevaluation Of Common Wheats From The Usda World Wheat Collection For Protein And Lysine Content, K. P. Vogel, V. A. Johnson, P. J. Mattern

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The protein and lysine content of wheat can be altered by breeding only if genetic variability exists for these traits. Lysine is a nutritionally limiting amino acid in wheat protein. Protein and lysine analyses of the common wheats of the USDA World Wheat Collection indicated that variability does exist for these traits. Some of the variability for protein and lysine among wheats of the World Collection may not be genetic in origin, because all the 12,000 wheats analyzed were not grown in the same environment. The purpose of this study was to reevaluate selected lines from the World Wheat Collection …

Agricultural Experiment Station News November 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
GREETINGS FROM THE FROLIKS
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1975

Water Current, Volume 7, No. 8, November/December 1975

Water Current Newsletter

From the Desk of the Director
Last Call for Research Proposals
Water Resources Seminar
Title II Award From OWRT
Matching Grant Proposals Submitted to OWRT
OWRC Advisory Council Meets
Water Research in Nebraska
New Interior Secretary Confirmed
WRC Legislation Signed by President Ford
Water Research and Technology Advisory Panel Meeting
Research Review: Application of Enzyme Methods to the Determinination of Pollutants in Water

Additional Records Of The Stenodermine Bat, Sturnina Thomasi, From The Lesser Antillean Island Of Guadeloupe, Hugh H. Genoways, J. Knox Jones

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomusi was named and described by de la Torre and Schwartz (Proceedings of the Biological Society of Washington 79: 297-303, 1966) on the basis of a single male from the island of Guadeloupe, Lesser Antilles, that was captured by Richard Thomas in 1963. The holotype of S. thomasi has until now been the only known specimen of this unique species. In late July of 1974, a field party from the Museum of Texas Tech University (supported by a grant from the National Science Foundation, GB-41105) collected bats on Guadeloupe and took four additional individuals of S. thomasi, all …

The Mineral Industry Of Nebraska, William F. Keyes, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Dramatic Structure And Philosophy In Brutus, Alzire And Mahomet, Thomas M. Carr Jr.

French Language and Literature Papers

An impressive amount of recent critical work has dealt with the philosophic element in Voltaire's tragedies. His plays have been labelled a theatre of involvement and a theatre of ideas; they have been examined from the standpoint of propaganda and as tragedy. However,the focus of such studies has been primarily on Voltaire's message or on the meaning of the plays, rather than on the dramatic structure he created to convey his philosophic concerns.

Today, of course, Voltaire does not rank high either as an original thinker or as a dramatist. Nonetheless, his attempt to introduce his philosophic concerns into his …

Path-Integral Formulation Of Scattering Theory, Paul Finkler, C. Edward Jones, M. Misheloff

Paul Finkler Papers

A new formulation of nonrelativistic scattering theory is developed which expresses the S matrix as a path integral. This formulation appears to have at least two advantages: (1) A closed formula is obtained for the S matrix in terms of the potential, not involving a series expansion; (2) the energy-conserving δ function can be explicitly extracted using a technique analogous to that of Faddeev and Popov, thereby yielding a closed pathintegral expression for the T matrix. The introduction of the concept of the classical interaction picture provides considerable physical insight into this formulation. This formulation also suggests a successionof improvements …

Can College Students Reason ?, Larry Copes

Module 11: Implementation and Suggested Readings

The students we are discussing are not stupid or lazy. Perhaps they are not "reasoning", in our logical sense of the term, but we need to consider the possibility that this is due to gaps in the development of their mental structure rather than to inherent lack of growth potential. If we channel our impatience toward providing concrete, "hands-on" learning environments, I believe we may teach more effectively in the long run.

Therefore I encourage you to take Piaget's work seriously--if not for its specifics, at least for its metaphorical value--for it presents a very compelling model for describing the …

Agricultural Experiment Station News October 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - September 1975
BULLETINS PRINTED

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

2 Remote Sensing

6 FARMER NEB on the air

8 Potassium, Magnesium in Panhandle Soils

9 Humans in Nutrition Studies

11 Annual Windbreaks Save Moisture

13 The Rural Radio Turn.On

14 Cow-Calf Management in the 1970's

15 Soil Fertility in the Sandhills

17 Value of Drought-Damaged Corn

20 The Time of Your Life

22 Keeping the Gypsy Moth Out of Nebraska

24 Manure: Long-Term Study

27 The University Dairy Herd

A Review Of The Genus Allassostomoides Stunkard 1924 (Trematoda: Paramphistomidae) With A Redescription Of A. Chelydrae (Maccallum 1919) Yamaguti 1958, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A redescription of Allassostomoides chelydrae and a review of the genus is presented, based on new collections of A. chelydrae and A. parvus from Nebraska, and examination of all type material relating to the genus. A. chelydrae, A. parvus, and A. louisianaensis are considered valid species. New host records for A. chelydrae are Bufo americanus, Rana catesbeiana, Chrysemys picta, and Graptemys pseudogeographica.

An Emotion-Attribution Approach To Moral Behavior: Interfacing Cognitive And Avoidance Theories Of Moral Development, Richard A. Dienstbier, Donald Hillman, John Lehnhoff, Judith Hillman, Maureen C. Valkenaar

Department of Psychology: Faculty Publications

A theory is presented concerning the impact of attributions about the causes of emotional responses as they influence self-control in temptation situations. Research is reviewed indicating a high level of adult sensitivity to external influence in making such causal attributions. Two studies are presented in which the post transgression emotions of second-grade children are labeled shame (because of being found out) or guilt (due to the transgression itself); when a similar situation was subsequently represented as safe from detection, shame-condition children transgressed 60–80% more than guilt-condition subjects. It is suggested that emotional arousal elicited in temptation situations because of past …

2P3/2:2P1/2 Partial Photoionization Cross-Section Ratios In The Rare Gases , James A.R. Samson, J.L. Gardner, Anthony F. Starace

Anthony F. Starace Publications

The ²P_3/2:²P_1/2 partial photoionization cross-section ratios have been measured for the rare gases in the ionization continuum and within resonance structure. The wavelength range for this study was from the ²P_1/2 ionization threshold to 304 Å. The ratio of the cross sections was found to be constant over this wavelength range, yielding ratios of 1.54, 1.77, 1.93, and 2.18 for Xe, Kr, Ar, and Ne, respectively. Within resonances, the ratio changed dramatically. Results are illustrated for xenon.

Prevalence Of Toxoplasma Antibodies In Range Vs. Dairy Cattle From The Bitterroot Valley Of Montana, Franklin Sogandares-Bernal, A. A. Marchiondo, Donald W. Duszynski, J. K. Ward

Harold W. Manter Laboratory of Parasitology: Faculty Publications

"Natural" or unaltered foods have become a fad in recent years. This includes the drinking of unpasteurized cow's milk as well as that designated "Certified." This report is made to call attention to a high prevalence of antibodies to toxoplasma in dairy as compared with range cattle. Previous to this study, few papers have considered the breed or conditions of management of cattle sampled for toxoplasma antibodies (McIlwain, 1969, Arch Environ Health 19: 885-886; Vanderwagen et aI., 1974, J Am Vet Med Assoc 164: 1,034-1,037).